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         u32 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->he_cap && params->he_oper) {
1256                 link_conf->he_support = true;
1257                 link_conf->htc_trig_based_pkt_ext =
1258                         le32_get_bits(params->he_oper->he_oper_params,
1259                               IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1260                 link_conf->frame_time_rts_th =
1261                         le32_get_bits(params->he_oper->he_oper_params,
1262                               IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1263                 changed |= BSS_CHANGED_HE_OBSS_PD;
1264
1265                 if (params->beacon.he_bss_color.enabled)
1266                         changed |= BSS_CHANGED_HE_BSS_COLOR;
1267         }
1268
1269         if (sdata->vif.type == NL80211_IFTYPE_AP &&
1270             params->mbssid_config.tx_wdev) {
1271                 err = ieee80211_set_ap_mbssid_options(sdata,
1272                                                       params->mbssid_config,
1273                                                       link_conf);
1274                 if (err)
1275                         return err;
1276         }
1277
1278         mutex_lock(&local->mtx);
1279         err = ieee80211_link_use_channel(link, &params->chandef,
1280                                          IEEE80211_CHANCTX_SHARED);
1281         if (!err)
1282                 ieee80211_link_copy_chanctx_to_vlans(link, false);
1283         mutex_unlock(&local->mtx);
1284         if (err) {
1285                 link_conf->beacon_int = prev_beacon_int;
1286                 return err;
1287         }
1288
1289         /*
1290          * Apply control port protocol, this allows us to
1291          * not encrypt dynamic WEP control frames.
1292          */
1293         sdata->control_port_protocol = params->crypto.control_port_ethertype;
1294         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1295         sdata->control_port_over_nl80211 =
1296                                 params->crypto.control_port_over_nl80211;
1297         sdata->control_port_no_preauth =
1298                                 params->crypto.control_port_no_preauth;
1299
1300         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1301                 vlan->control_port_protocol =
1302                         params->crypto.control_port_ethertype;
1303                 vlan->control_port_no_encrypt =
1304                         params->crypto.control_port_no_encrypt;
1305                 vlan->control_port_over_nl80211 =
1306                         params->crypto.control_port_over_nl80211;
1307                 vlan->control_port_no_preauth =
1308                         params->crypto.control_port_no_preauth;
1309         }
1310
1311         link_conf->dtim_period = params->dtim_period;
1312         link_conf->enable_beacon = true;
1313         link_conf->allow_p2p_go_ps = sdata->vif.p2p;
1314         link_conf->twt_responder = params->twt_responder;
1315         link_conf->he_obss_pd = params->he_obss_pd;
1316         link_conf->he_bss_color = params->beacon.he_bss_color;
1317         sdata->vif.cfg.s1g = params->chandef.chan->band ==
1318                                   NL80211_BAND_S1GHZ;
1319
1320         sdata->vif.cfg.ssid_len = params->ssid_len;
1321         if (params->ssid_len)
1322                 memcpy(sdata->vif.cfg.ssid, params->ssid,
1323                        params->ssid_len);
1324         link_conf->hidden_ssid =
1325                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1326
1327         memset(&link_conf->p2p_noa_attr, 0,
1328                sizeof(link_conf->p2p_noa_attr));
1329         link_conf->p2p_noa_attr.oppps_ctwindow =
1330                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1331         if (params->p2p_opp_ps)
1332                 link_conf->p2p_noa_attr.oppps_ctwindow |=
1333                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1334
1335         sdata->beacon_rate_set = false;
1336         if (wiphy_ext_feature_isset(local->hw.wiphy,
1337                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1338                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1339                         sdata->beacon_rateidx_mask[i] =
1340                                 params->beacon_rate.control[i].legacy;
1341                         if (sdata->beacon_rateidx_mask[i])
1342                                 sdata->beacon_rate_set = true;
1343                 }
1344         }
1345
1346         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1347                 link_conf->beacon_tx_rate = params->beacon_rate;
1348
1349         err = ieee80211_assign_beacon(sdata, link, &params->beacon, NULL, NULL);
1350         if (err < 0)
1351                 goto error;
1352         changed |= err;
1353
1354         if (params->fils_discovery.max_interval) {
1355                 err = ieee80211_set_fils_discovery(sdata,
1356                                                    &params->fils_discovery,
1357                                                    link, link_conf);
1358                 if (err < 0)
1359                         goto error;
1360                 changed |= BSS_CHANGED_FILS_DISCOVERY;
1361         }
1362
1363         if (params->unsol_bcast_probe_resp.interval) {
1364                 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1365                                                            &params->unsol_bcast_probe_resp,
1366                                                            link, link_conf);
1367                 if (err < 0)
1368                         goto error;
1369                 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1370         }
1371
1372         err = drv_start_ap(sdata->local, sdata, link_conf);
1373         if (err) {
1374                 old = sdata_dereference(link->u.ap.beacon, sdata);
1375
1376                 if (old)
1377                         kfree_rcu(old, rcu_head);
1378                 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1379                 sdata->u.ap.active = false;
1380                 goto error;
1381         }
1382
1383         ieee80211_recalc_dtim(local, sdata);
1384         ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID);
1385         ieee80211_link_info_change_notify(sdata, link, changed);
1386
1387         netif_carrier_on(dev);
1388         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1389                 netif_carrier_on(vlan->dev);
1390
1391         return 0;
1392
1393 error:
1394         mutex_lock(&local->mtx);
1395         ieee80211_link_release_channel(link);
1396         mutex_unlock(&local->mtx);
1397
1398         return err;
1399 }
1400
1401 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1402                                    struct cfg80211_beacon_data *params)
1403 {
1404         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1405         struct ieee80211_link_data *link;
1406         struct beacon_data *old;
1407         int err;
1408         struct ieee80211_bss_conf *link_conf;
1409
1410         sdata_assert_lock(sdata);
1411
1412         link = sdata_dereference(sdata->link[params->link_id], sdata);
1413         if (!link)
1414                 return -ENOLINK;
1415
1416         link_conf = link->conf;
1417
1418         /* don't allow changing the beacon while a countdown is in place - offset
1419          * of channel switch counter may change
1420          */
1421         if (link_conf->csa_active || link_conf->color_change_active)
1422                 return -EBUSY;
1423
1424         old = sdata_dereference(link->u.ap.beacon, sdata);
1425         if (!old)
1426                 return -ENOENT;
1427
1428         err = ieee80211_assign_beacon(sdata, link, params, NULL, NULL);
1429         if (err < 0)
1430                 return err;
1431
1432         if (params->he_bss_color_valid &&
1433             params->he_bss_color.enabled != link_conf->he_bss_color.enabled) {
1434                 link_conf->he_bss_color.enabled = params->he_bss_color.enabled;
1435                 err |= BSS_CHANGED_HE_BSS_COLOR;
1436         }
1437
1438         ieee80211_link_info_change_notify(sdata, link, err);
1439         return 0;
1440 }
1441
1442 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link)
1443 {
1444         if (!link->u.ap.next_beacon)
1445                 return;
1446
1447         kfree(link->u.ap.next_beacon->mbssid_ies);
1448         kfree(link->u.ap.next_beacon);
1449         link->u.ap.next_beacon = NULL;
1450 }
1451
1452 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1453                              unsigned int link_id)
1454 {
1455         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1456         struct ieee80211_sub_if_data *vlan;
1457         struct ieee80211_local *local = sdata->local;
1458         struct beacon_data *old_beacon;
1459         struct probe_resp *old_probe_resp;
1460         struct fils_discovery_data *old_fils_discovery;
1461         struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1462         struct cfg80211_chan_def chandef;
1463         struct ieee80211_link_data *link =
1464                 sdata_dereference(sdata->link[link_id], sdata);
1465         struct ieee80211_bss_conf *link_conf = link->conf;
1466
1467         sdata_assert_lock(sdata);
1468
1469         old_beacon = sdata_dereference(link->u.ap.beacon, sdata);
1470         if (!old_beacon)
1471                 return -ENOENT;
1472         old_probe_resp = sdata_dereference(link->u.ap.probe_resp,
1473                                            sdata);
1474         old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery,
1475                                                sdata);
1476         old_unsol_bcast_probe_resp =
1477                 sdata_dereference(link->u.ap.unsol_bcast_probe_resp,
1478                                   sdata);
1479
1480         /* abort any running channel switch */
1481         mutex_lock(&local->mtx);
1482         link_conf->csa_active = false;
1483         if (link->csa_block_tx) {
1484                 ieee80211_wake_vif_queues(local, sdata,
1485                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1486                 link->csa_block_tx = false;
1487         }
1488
1489         mutex_unlock(&local->mtx);
1490
1491         ieee80211_free_next_beacon(link);
1492
1493         /* turn off carrier for this interface and dependent VLANs */
1494         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1495                 netif_carrier_off(vlan->dev);
1496         netif_carrier_off(dev);
1497
1498         /* remove beacon and probe response */
1499         sdata->u.ap.active = false;
1500         RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1501         RCU_INIT_POINTER(link->u.ap.probe_resp, NULL);
1502         RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1503         RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1504         kfree_rcu(old_beacon, rcu_head);
1505         if (old_probe_resp)
1506                 kfree_rcu(old_probe_resp, rcu_head);
1507         if (old_fils_discovery)
1508                 kfree_rcu(old_fils_discovery, rcu_head);
1509         if (old_unsol_bcast_probe_resp)
1510                 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1511
1512         kfree(link_conf->ftmr_params);
1513         link_conf->ftmr_params = NULL;
1514
1515         sdata->vif.mbssid_tx_vif = NULL;
1516         link_conf->bssid_index = 0;
1517         link_conf->nontransmitted = false;
1518         link_conf->ema_ap = false;
1519         link_conf->bssid_indicator = 0;
1520
1521         __sta_info_flush(sdata, true);
1522         ieee80211_free_keys(sdata, true);
1523
1524         link_conf->enable_beacon = false;
1525         sdata->beacon_rate_set = false;
1526         sdata->vif.cfg.ssid_len = 0;
1527         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1528         ieee80211_link_info_change_notify(sdata, link,
1529                                           BSS_CHANGED_BEACON_ENABLED);
1530
1531         if (sdata->wdev.cac_started) {
1532                 chandef = link_conf->chandef;
1533                 cancel_delayed_work_sync(&link->dfs_cac_timer_work);
1534                 cfg80211_cac_event(sdata->dev, &chandef,
1535                                    NL80211_RADAR_CAC_ABORTED,
1536                                    GFP_KERNEL);
1537         }
1538
1539         drv_stop_ap(sdata->local, sdata, link_conf);
1540
1541         /* free all potentially still buffered bcast frames */
1542         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1543         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1544
1545         mutex_lock(&local->mtx);
1546         ieee80211_link_copy_chanctx_to_vlans(link, true);
1547         ieee80211_link_release_channel(link);
1548         mutex_unlock(&local->mtx);
1549
1550         return 0;
1551 }
1552
1553 static int sta_apply_auth_flags(struct ieee80211_local *local,
1554                                 struct sta_info *sta,
1555                                 u32 mask, u32 set)
1556 {
1557         int ret;
1558
1559         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1560             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1561             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1562                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1563                 if (ret)
1564                         return ret;
1565         }
1566
1567         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1568             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1569             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1570                 /*
1571                  * When peer becomes associated, init rate control as
1572                  * well. Some drivers require rate control initialized
1573                  * before drv_sta_state() is called.
1574                  */
1575                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1576                         rate_control_rate_init(sta);
1577
1578                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1579                 if (ret)
1580                         return ret;
1581         }
1582
1583         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1584                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1585                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1586                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1587                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1588                 else
1589                         ret = 0;
1590                 if (ret)
1591                         return ret;
1592         }
1593
1594         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1595             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1596             test_sta_flag(sta, WLAN_STA_ASSOC)) {
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_AUTHENTICATED) &&
1603             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1604             test_sta_flag(sta, WLAN_STA_AUTH)) {
1605                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1606                 if (ret)
1607                         return ret;
1608         }
1609
1610         return 0;
1611 }
1612
1613 static void sta_apply_mesh_params(struct ieee80211_local *local,
1614                                   struct sta_info *sta,
1615                                   struct station_parameters *params)
1616 {
1617 #ifdef CONFIG_MAC80211_MESH
1618         struct ieee80211_sub_if_data *sdata = sta->sdata;
1619         u32 changed = 0;
1620
1621         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1622                 switch (params->plink_state) {
1623                 case NL80211_PLINK_ESTAB:
1624                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1625                                 changed = mesh_plink_inc_estab_count(sdata);
1626                         sta->mesh->plink_state = params->plink_state;
1627                         sta->mesh->aid = params->peer_aid;
1628
1629                         ieee80211_mps_sta_status_update(sta);
1630                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1631                                       sdata->u.mesh.mshcfg.power_mode);
1632
1633                         ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1634                         /* init at low value */
1635                         ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1636
1637                         break;
1638                 case NL80211_PLINK_LISTEN:
1639                 case NL80211_PLINK_BLOCKED:
1640                 case NL80211_PLINK_OPN_SNT:
1641                 case NL80211_PLINK_OPN_RCVD:
1642                 case NL80211_PLINK_CNF_RCVD:
1643                 case NL80211_PLINK_HOLDING:
1644                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1645                                 changed = mesh_plink_dec_estab_count(sdata);
1646                         sta->mesh->plink_state = params->plink_state;
1647
1648                         ieee80211_mps_sta_status_update(sta);
1649                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1650                                         NL80211_MESH_POWER_UNKNOWN);
1651                         break;
1652                 default:
1653                         /*  nothing  */
1654                         break;
1655                 }
1656         }
1657
1658         switch (params->plink_action) {
1659         case NL80211_PLINK_ACTION_NO_ACTION:
1660                 /* nothing */
1661                 break;
1662         case NL80211_PLINK_ACTION_OPEN:
1663                 changed |= mesh_plink_open(sta);
1664                 break;
1665         case NL80211_PLINK_ACTION_BLOCK:
1666                 changed |= mesh_plink_block(sta);
1667                 break;
1668         }
1669
1670         if (params->local_pm)
1671                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1672                                                           params->local_pm);
1673
1674         ieee80211_mbss_info_change_notify(sdata, changed);
1675 #endif
1676 }
1677
1678 static int sta_link_apply_parameters(struct ieee80211_local *local,
1679                                      struct sta_info *sta, bool new_link,
1680                                      struct link_station_parameters *params)
1681 {
1682         int ret = 0;
1683         struct ieee80211_supported_band *sband;
1684         struct ieee80211_sub_if_data *sdata = sta->sdata;
1685         u32 link_id = params->link_id < 0 ? 0 : params->link_id;
1686         struct ieee80211_link_data *link =
1687                 sdata_dereference(sdata->link[link_id], sdata);
1688         struct link_sta_info *link_sta =
1689                 rcu_dereference_protected(sta->link[link_id],
1690                                           lockdep_is_held(&local->sta_mtx));
1691
1692         /*
1693          * If there are no changes, then accept a link that doesn't exist,
1694          * unless it's a new link.
1695          */
1696         if (params->link_id < 0 && !new_link &&
1697             !params->link_mac && !params->txpwr_set &&
1698             !params->supported_rates_len &&
1699             !params->ht_capa && !params->vht_capa &&
1700             !params->he_capa && !params->eht_capa &&
1701             !params->opmode_notif_used)
1702                 return 0;
1703
1704         if (!link || !link_sta)
1705                 return -EINVAL;
1706
1707         sband = ieee80211_get_link_sband(link);
1708         if (!sband)
1709                 return -EINVAL;
1710
1711         if (params->link_mac) {
1712                 if (new_link) {
1713                         memcpy(link_sta->addr, params->link_mac, ETH_ALEN);
1714                         memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN);
1715                 } else if (!ether_addr_equal(link_sta->addr,
1716                                              params->link_mac)) {
1717                         return -EINVAL;
1718                 }
1719         } else if (new_link) {
1720                 return -EINVAL;
1721         }
1722
1723         if (params->txpwr_set) {
1724                 link_sta->pub->txpwr.type = params->txpwr.type;
1725                 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1726                         link_sta->pub->txpwr.power = params->txpwr.power;
1727                 ret = drv_sta_set_txpwr(local, sdata, sta);
1728                 if (ret)
1729                         return ret;
1730         }
1731
1732         if (params->supported_rates &&
1733             params->supported_rates_len) {
1734                 ieee80211_parse_bitrates(link->conf->chandef.width,
1735                                          sband, params->supported_rates,
1736                                          params->supported_rates_len,
1737                                          &link_sta->pub->supp_rates[sband->band]);
1738         }
1739
1740         if (params->ht_capa)
1741                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1742                                                   params->ht_capa, link_sta);
1743
1744         /* VHT can override some HT caps such as the A-MSDU max length */
1745         if (params->vht_capa)
1746                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1747                                                     params->vht_capa, link_sta);
1748
1749         if (params->he_capa)
1750                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1751                                                   (void *)params->he_capa,
1752                                                   params->he_capa_len,
1753                                                   (void *)params->he_6ghz_capa,
1754                                                   link_sta);
1755
1756         if (params->eht_capa)
1757                 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
1758                                                     (u8 *)params->he_capa,
1759                                                     params->he_capa_len,
1760                                                     params->eht_capa,
1761                                                     params->eht_capa_len,
1762                                                     link_sta);
1763
1764         if (params->opmode_notif_used) {
1765                 /* returned value is only needed for rc update, but the
1766                  * rc isn't initialized here yet, so ignore it
1767                  */
1768                 __ieee80211_vht_handle_opmode(sdata, link_sta,
1769                                               params->opmode_notif,
1770                                               sband->band);
1771         }
1772
1773         return ret;
1774 }
1775
1776 static int sta_apply_parameters(struct ieee80211_local *local,
1777                                 struct sta_info *sta,
1778                                 struct station_parameters *params)
1779 {
1780         struct ieee80211_sub_if_data *sdata = sta->sdata;
1781         u32 mask, set;
1782         int ret = 0;
1783
1784         mask = params->sta_flags_mask;
1785         set = params->sta_flags_set;
1786
1787         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1788                 /*
1789                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1790                  * API but must follow AUTHENTICATED for driver state.
1791                  */
1792                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1793                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1794                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1795                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1796         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1797                 /*
1798                  * TDLS -- everything follows authorized, but
1799                  * only becoming authorized is possible, not
1800                  * going back
1801                  */
1802                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1803                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1804                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1805                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1806                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1807                 }
1808         }
1809
1810         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1811             local->hw.queues >= IEEE80211_NUM_ACS)
1812                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1813
1814         /* auth flags will be set later for TDLS,
1815          * and for unassociated stations that move to associated */
1816         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1817             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1818               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1819                 ret = sta_apply_auth_flags(local, sta, mask, set);
1820                 if (ret)
1821                         return ret;
1822         }
1823
1824         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1825                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1826                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1827                 else
1828                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1829         }
1830
1831         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1832                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1833                 if (set & BIT(NL80211_STA_FLAG_MFP))
1834                         set_sta_flag(sta, WLAN_STA_MFP);
1835                 else
1836                         clear_sta_flag(sta, WLAN_STA_MFP);
1837         }
1838
1839         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1840                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1841                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1842                 else
1843                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1844         }
1845
1846         /* mark TDLS channel switch support, if the AP allows it */
1847         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1848             !sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
1849             params->ext_capab_len >= 4 &&
1850             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1851                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1852
1853         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1854             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1855             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1856             params->ext_capab_len >= 8 &&
1857             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1858                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1859
1860         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1861                 sta->sta.uapsd_queues = params->uapsd_queues;
1862                 sta->sta.max_sp = params->max_sp;
1863         }
1864
1865         ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab,
1866                                               params->ext_capab_len);
1867
1868         /*
1869          * cfg80211 validates this (1-2007) and allows setting the AID
1870          * only when creating a new station entry
1871          */
1872         if (params->aid)
1873                 sta->sta.aid = params->aid;
1874
1875         /*
1876          * Some of the following updates would be racy if called on an
1877          * existing station, via ieee80211_change_station(). However,
1878          * all such changes are rejected by cfg80211 except for updates
1879          * changing the supported rates on an existing but not yet used
1880          * TDLS peer.
1881          */
1882
1883         if (params->listen_interval >= 0)
1884                 sta->listen_interval = params->listen_interval;
1885
1886         ret = sta_link_apply_parameters(local, sta, false,
1887                                         &params->link_sta_params);
1888         if (ret)
1889                 return ret;
1890
1891         if (params->support_p2p_ps >= 0)
1892                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1893
1894         if (ieee80211_vif_is_mesh(&sdata->vif))
1895                 sta_apply_mesh_params(local, sta, params);
1896
1897         if (params->airtime_weight)
1898                 sta->airtime_weight = params->airtime_weight;
1899
1900         /* set the STA state after all sta info from usermode has been set */
1901         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1902             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1903                 ret = sta_apply_auth_flags(local, sta, mask, set);
1904                 if (ret)
1905                         return ret;
1906         }
1907
1908         /* Mark the STA as MLO if MLD MAC address is available */
1909         if (params->link_sta_params.mld_mac)
1910                 sta->sta.mlo = true;
1911
1912         return 0;
1913 }
1914
1915 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1916                                  const u8 *mac,
1917                                  struct station_parameters *params)
1918 {
1919         struct ieee80211_local *local = wiphy_priv(wiphy);
1920         struct sta_info *sta;
1921         struct ieee80211_sub_if_data *sdata;
1922         int err;
1923
1924         if (params->vlan) {
1925                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1926
1927                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1928                     sdata->vif.type != NL80211_IFTYPE_AP)
1929                         return -EINVAL;
1930         } else
1931                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1932
1933         if (ether_addr_equal(mac, sdata->vif.addr))
1934                 return -EINVAL;
1935
1936         if (!is_valid_ether_addr(mac))
1937                 return -EINVAL;
1938
1939         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1940             sdata->vif.type == NL80211_IFTYPE_STATION &&
1941             !sdata->u.mgd.associated)
1942                 return -EINVAL;
1943
1944         /*
1945          * If we have a link ID, it can be a non-MLO station on an AP MLD,
1946          * but we need to have a link_mac in that case as well, so use the
1947          * STA's MAC address in that case.
1948          */
1949         if (params->link_sta_params.link_id >= 0)
1950                 sta = sta_info_alloc_with_link(sdata, mac,
1951                                                params->link_sta_params.link_id,
1952                                                params->link_sta_params.link_mac ?: mac,
1953                                                GFP_KERNEL);
1954         else
1955                 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1956
1957         if (!sta)
1958                 return -ENOMEM;
1959
1960         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1961                 sta->sta.tdls = true;
1962
1963         /* Though the mutex is not needed here (since the station is not
1964          * visible yet), sta_apply_parameters (and inner functions) require
1965          * the mutex due to other paths.
1966          */
1967         mutex_lock(&local->sta_mtx);
1968         err = sta_apply_parameters(local, sta, params);
1969         mutex_unlock(&local->sta_mtx);
1970         if (err) {
1971                 sta_info_free(local, sta);
1972                 return err;
1973         }
1974
1975         /*
1976          * for TDLS and for unassociated station, rate control should be
1977          * initialized only when rates are known and station is marked
1978          * authorized/associated
1979          */
1980         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1981             test_sta_flag(sta, WLAN_STA_ASSOC))
1982                 rate_control_rate_init(sta);
1983
1984         return sta_info_insert(sta);
1985 }
1986
1987 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1988                                  struct station_del_parameters *params)
1989 {
1990         struct ieee80211_sub_if_data *sdata;
1991
1992         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1993
1994         if (params->mac)
1995                 return sta_info_destroy_addr_bss(sdata, params->mac);
1996
1997         sta_info_flush(sdata);
1998         return 0;
1999 }
2000
2001 static int ieee80211_change_station(struct wiphy *wiphy,
2002                                     struct net_device *dev, const u8 *mac,
2003                                     struct station_parameters *params)
2004 {
2005         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2006         struct ieee80211_local *local = wiphy_priv(wiphy);
2007         struct sta_info *sta;
2008         struct ieee80211_sub_if_data *vlansdata;
2009         enum cfg80211_station_type statype;
2010         int err;
2011
2012         mutex_lock(&local->sta_mtx);
2013
2014         sta = sta_info_get_bss(sdata, mac);
2015         if (!sta) {
2016                 err = -ENOENT;
2017                 goto out_err;
2018         }
2019
2020         switch (sdata->vif.type) {
2021         case NL80211_IFTYPE_MESH_POINT:
2022                 if (sdata->u.mesh.user_mpm)
2023                         statype = CFG80211_STA_MESH_PEER_USER;
2024                 else
2025                         statype = CFG80211_STA_MESH_PEER_KERNEL;
2026                 break;
2027         case NL80211_IFTYPE_ADHOC:
2028                 statype = CFG80211_STA_IBSS;
2029                 break;
2030         case NL80211_IFTYPE_STATION:
2031                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
2032                         statype = CFG80211_STA_AP_STA;
2033                         break;
2034                 }
2035                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2036                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
2037                 else
2038                         statype = CFG80211_STA_TDLS_PEER_SETUP;
2039                 break;
2040         case NL80211_IFTYPE_AP:
2041         case NL80211_IFTYPE_AP_VLAN:
2042                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
2043                         statype = CFG80211_STA_AP_CLIENT;
2044                 else
2045                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
2046                 break;
2047         default:
2048                 err = -EOPNOTSUPP;
2049                 goto out_err;
2050         }
2051
2052         err = cfg80211_check_station_change(wiphy, params, statype);
2053         if (err)
2054                 goto out_err;
2055
2056         if (params->vlan && params->vlan != sta->sdata->dev) {
2057                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2058
2059                 if (params->vlan->ieee80211_ptr->use_4addr) {
2060                         if (vlansdata->u.vlan.sta) {
2061                                 err = -EBUSY;
2062                                 goto out_err;
2063                         }
2064
2065                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
2066                         __ieee80211_check_fast_rx_iface(vlansdata);
2067                         drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
2068                 }
2069
2070                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
2071                     sta->sdata->u.vlan.sta) {
2072                         ieee80211_clear_fast_rx(sta);
2073                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
2074                 }
2075
2076                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2077                         ieee80211_vif_dec_num_mcast(sta->sdata);
2078
2079                 sta->sdata = vlansdata;
2080                 ieee80211_check_fast_xmit(sta);
2081
2082                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
2083                         ieee80211_vif_inc_num_mcast(sta->sdata);
2084                         cfg80211_send_layer2_update(sta->sdata->dev,
2085                                                     sta->sta.addr);
2086                 }
2087         }
2088
2089         /* we use sta_info_get_bss() so this might be different */
2090         if (sdata != sta->sdata) {
2091                 mutex_lock_nested(&sta->sdata->wdev.mtx, 1);
2092                 err = sta_apply_parameters(local, sta, params);
2093                 mutex_unlock(&sta->sdata->wdev.mtx);
2094         } else {
2095                 err = sta_apply_parameters(local, sta, params);
2096         }
2097         if (err)
2098                 goto out_err;
2099
2100         mutex_unlock(&local->sta_mtx);
2101
2102         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
2103             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2104                 ieee80211_recalc_ps(local);
2105                 ieee80211_recalc_ps_vif(sdata);
2106         }
2107
2108         return 0;
2109 out_err:
2110         mutex_unlock(&local->sta_mtx);
2111         return err;
2112 }
2113
2114 #ifdef CONFIG_MAC80211_MESH
2115 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
2116                                const u8 *dst, const u8 *next_hop)
2117 {
2118         struct ieee80211_sub_if_data *sdata;
2119         struct mesh_path *mpath;
2120         struct sta_info *sta;
2121
2122         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2123
2124         rcu_read_lock();
2125         sta = sta_info_get(sdata, next_hop);
2126         if (!sta) {
2127                 rcu_read_unlock();
2128                 return -ENOENT;
2129         }
2130
2131         mpath = mesh_path_add(sdata, dst);
2132         if (IS_ERR(mpath)) {
2133                 rcu_read_unlock();
2134                 return PTR_ERR(mpath);
2135         }
2136
2137         mesh_path_fix_nexthop(mpath, sta);
2138
2139         rcu_read_unlock();
2140         return 0;
2141 }
2142
2143 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2144                                const u8 *dst)
2145 {
2146         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2147
2148         if (dst)
2149                 return mesh_path_del(sdata, dst);
2150
2151         mesh_path_flush_by_iface(sdata);
2152         return 0;
2153 }
2154
2155 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2156                                   const u8 *dst, const u8 *next_hop)
2157 {
2158         struct ieee80211_sub_if_data *sdata;
2159         struct mesh_path *mpath;
2160         struct sta_info *sta;
2161
2162         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2163
2164         rcu_read_lock();
2165
2166         sta = sta_info_get(sdata, next_hop);
2167         if (!sta) {
2168                 rcu_read_unlock();
2169                 return -ENOENT;
2170         }
2171
2172         mpath = mesh_path_lookup(sdata, dst);
2173         if (!mpath) {
2174                 rcu_read_unlock();
2175                 return -ENOENT;
2176         }
2177
2178         mesh_path_fix_nexthop(mpath, sta);
2179
2180         rcu_read_unlock();
2181         return 0;
2182 }
2183
2184 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2185                             struct mpath_info *pinfo)
2186 {
2187         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2188
2189         if (next_hop_sta)
2190                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2191         else
2192                 eth_zero_addr(next_hop);
2193
2194         memset(pinfo, 0, sizeof(*pinfo));
2195
2196         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2197
2198         pinfo->filled = MPATH_INFO_FRAME_QLEN |
2199                         MPATH_INFO_SN |
2200                         MPATH_INFO_METRIC |
2201                         MPATH_INFO_EXPTIME |
2202                         MPATH_INFO_DISCOVERY_TIMEOUT |
2203                         MPATH_INFO_DISCOVERY_RETRIES |
2204                         MPATH_INFO_FLAGS |
2205                         MPATH_INFO_HOP_COUNT |
2206                         MPATH_INFO_PATH_CHANGE;
2207
2208         pinfo->frame_qlen = mpath->frame_queue.qlen;
2209         pinfo->sn = mpath->sn;
2210         pinfo->metric = mpath->metric;
2211         if (time_before(jiffies, mpath->exp_time))
2212                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
2213         pinfo->discovery_timeout =
2214                         jiffies_to_msecs(mpath->discovery_timeout);
2215         pinfo->discovery_retries = mpath->discovery_retries;
2216         if (mpath->flags & MESH_PATH_ACTIVE)
2217                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2218         if (mpath->flags & MESH_PATH_RESOLVING)
2219                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2220         if (mpath->flags & MESH_PATH_SN_VALID)
2221                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2222         if (mpath->flags & MESH_PATH_FIXED)
2223                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2224         if (mpath->flags & MESH_PATH_RESOLVED)
2225                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2226         pinfo->hop_count = mpath->hop_count;
2227         pinfo->path_change_count = mpath->path_change_count;
2228 }
2229
2230 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2231                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2232
2233 {
2234         struct ieee80211_sub_if_data *sdata;
2235         struct mesh_path *mpath;
2236
2237         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2238
2239         rcu_read_lock();
2240         mpath = mesh_path_lookup(sdata, dst);
2241         if (!mpath) {
2242                 rcu_read_unlock();
2243                 return -ENOENT;
2244         }
2245         memcpy(dst, mpath->dst, ETH_ALEN);
2246         mpath_set_pinfo(mpath, next_hop, pinfo);
2247         rcu_read_unlock();
2248         return 0;
2249 }
2250
2251 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2252                                 int idx, u8 *dst, u8 *next_hop,
2253                                 struct mpath_info *pinfo)
2254 {
2255         struct ieee80211_sub_if_data *sdata;
2256         struct mesh_path *mpath;
2257
2258         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2259
2260         rcu_read_lock();
2261         mpath = mesh_path_lookup_by_idx(sdata, idx);
2262         if (!mpath) {
2263                 rcu_read_unlock();
2264                 return -ENOENT;
2265         }
2266         memcpy(dst, mpath->dst, ETH_ALEN);
2267         mpath_set_pinfo(mpath, next_hop, pinfo);
2268         rcu_read_unlock();
2269         return 0;
2270 }
2271
2272 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2273                           struct mpath_info *pinfo)
2274 {
2275         memset(pinfo, 0, sizeof(*pinfo));
2276         memcpy(mpp, mpath->mpp, ETH_ALEN);
2277
2278         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2279 }
2280
2281 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2282                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2283
2284 {
2285         struct ieee80211_sub_if_data *sdata;
2286         struct mesh_path *mpath;
2287
2288         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2289
2290         rcu_read_lock();
2291         mpath = mpp_path_lookup(sdata, dst);
2292         if (!mpath) {
2293                 rcu_read_unlock();
2294                 return -ENOENT;
2295         }
2296         memcpy(dst, mpath->dst, ETH_ALEN);
2297         mpp_set_pinfo(mpath, mpp, pinfo);
2298         rcu_read_unlock();
2299         return 0;
2300 }
2301
2302 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2303                               int idx, u8 *dst, u8 *mpp,
2304                               struct mpath_info *pinfo)
2305 {
2306         struct ieee80211_sub_if_data *sdata;
2307         struct mesh_path *mpath;
2308
2309         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2310
2311         rcu_read_lock();
2312         mpath = mpp_path_lookup_by_idx(sdata, idx);
2313         if (!mpath) {
2314                 rcu_read_unlock();
2315                 return -ENOENT;
2316         }
2317         memcpy(dst, mpath->dst, ETH_ALEN);
2318         mpp_set_pinfo(mpath, mpp, pinfo);
2319         rcu_read_unlock();
2320         return 0;
2321 }
2322
2323 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2324                                 struct net_device *dev,
2325                                 struct mesh_config *conf)
2326 {
2327         struct ieee80211_sub_if_data *sdata;
2328         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2329
2330         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2331         return 0;
2332 }
2333
2334 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2335 {
2336         return (mask >> (parm-1)) & 0x1;
2337 }
2338
2339 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2340                 const struct mesh_setup *setup)
2341 {
2342         u8 *new_ie;
2343         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2344                                         struct ieee80211_sub_if_data, u.mesh);
2345         int i;
2346
2347         /* allocate information elements */
2348         new_ie = NULL;
2349
2350         if (setup->ie_len) {
2351                 new_ie = kmemdup(setup->ie, setup->ie_len,
2352                                 GFP_KERNEL);
2353                 if (!new_ie)
2354                         return -ENOMEM;
2355         }
2356         ifmsh->ie_len = setup->ie_len;
2357         ifmsh->ie = new_ie;
2358
2359         /* now copy the rest of the setup parameters */
2360         ifmsh->mesh_id_len = setup->mesh_id_len;
2361         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2362         ifmsh->mesh_sp_id = setup->sync_method;
2363         ifmsh->mesh_pp_id = setup->path_sel_proto;
2364         ifmsh->mesh_pm_id = setup->path_metric;
2365         ifmsh->user_mpm = setup->user_mpm;
2366         ifmsh->mesh_auth_id = setup->auth_id;
2367         ifmsh->security = IEEE80211_MESH_SEC_NONE;
2368         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2369         if (setup->is_authenticated)
2370                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2371         if (setup->is_secure)
2372                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2373
2374         /* mcast rate setting in Mesh Node */
2375         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2376                                                 sizeof(setup->mcast_rate));
2377         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2378
2379         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2380         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2381
2382         sdata->beacon_rate_set = false;
2383         if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2384                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2385                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2386                         sdata->beacon_rateidx_mask[i] =
2387                                 setup->beacon_rate.control[i].legacy;
2388                         if (sdata->beacon_rateidx_mask[i])
2389                                 sdata->beacon_rate_set = true;
2390                 }
2391         }
2392
2393         return 0;
2394 }
2395
2396 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2397                                         struct net_device *dev, u32 mask,
2398                                         const struct mesh_config *nconf)
2399 {
2400         struct mesh_config *conf;
2401         struct ieee80211_sub_if_data *sdata;
2402         struct ieee80211_if_mesh *ifmsh;
2403
2404         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2405         ifmsh = &sdata->u.mesh;
2406
2407         /* Set the config options which we are interested in setting */
2408         conf = &(sdata->u.mesh.mshcfg);
2409         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2410                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2411         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2412                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2413         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2414                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2415         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2416                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2417         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2418                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2419         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2420                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2421         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2422                 conf->element_ttl = nconf->element_ttl;
2423         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2424                 if (ifmsh->user_mpm)
2425                         return -EBUSY;
2426                 conf->auto_open_plinks = nconf->auto_open_plinks;
2427         }
2428         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2429                 conf->dot11MeshNbrOffsetMaxNeighbor =
2430                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2431         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2432                 conf->dot11MeshHWMPmaxPREQretries =
2433                         nconf->dot11MeshHWMPmaxPREQretries;
2434         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2435                 conf->path_refresh_time = nconf->path_refresh_time;
2436         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2437                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2438         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2439                 conf->dot11MeshHWMPactivePathTimeout =
2440                         nconf->dot11MeshHWMPactivePathTimeout;
2441         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2442                 conf->dot11MeshHWMPpreqMinInterval =
2443                         nconf->dot11MeshHWMPpreqMinInterval;
2444         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2445                 conf->dot11MeshHWMPperrMinInterval =
2446                         nconf->dot11MeshHWMPperrMinInterval;
2447         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2448                            mask))
2449                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2450                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2451         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2452                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2453                 ieee80211_mesh_root_setup(ifmsh);
2454         }
2455         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2456                 /* our current gate announcement implementation rides on root
2457                  * announcements, so require this ifmsh to also be a root node
2458                  * */
2459                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2460                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2461                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2462                         ieee80211_mesh_root_setup(ifmsh);
2463                 }
2464                 conf->dot11MeshGateAnnouncementProtocol =
2465                         nconf->dot11MeshGateAnnouncementProtocol;
2466         }
2467         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2468                 conf->dot11MeshHWMPRannInterval =
2469                         nconf->dot11MeshHWMPRannInterval;
2470         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2471                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2472         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2473                 /* our RSSI threshold implementation is supported only for
2474                  * devices that report signal in dBm.
2475                  */
2476                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2477                         return -ENOTSUPP;
2478                 conf->rssi_threshold = nconf->rssi_threshold;
2479         }
2480         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2481                 conf->ht_opmode = nconf->ht_opmode;
2482                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2483                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2484                                                   BSS_CHANGED_HT);
2485         }
2486         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2487                 conf->dot11MeshHWMPactivePathToRootTimeout =
2488                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2489         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2490                 conf->dot11MeshHWMProotInterval =
2491                         nconf->dot11MeshHWMProotInterval;
2492         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2493                 conf->dot11MeshHWMPconfirmationInterval =
2494                         nconf->dot11MeshHWMPconfirmationInterval;
2495         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2496                 conf->power_mode = nconf->power_mode;
2497                 ieee80211_mps_local_status_update(sdata);
2498         }
2499         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2500                 conf->dot11MeshAwakeWindowDuration =
2501                         nconf->dot11MeshAwakeWindowDuration;
2502         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2503                 conf->plink_timeout = nconf->plink_timeout;
2504         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2505                 conf->dot11MeshConnectedToMeshGate =
2506                         nconf->dot11MeshConnectedToMeshGate;
2507         if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2508                 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2509         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2510                 conf->dot11MeshConnectedToAuthServer =
2511                         nconf->dot11MeshConnectedToAuthServer;
2512         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2513         return 0;
2514 }
2515
2516 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2517                                const struct mesh_config *conf,
2518                                const struct mesh_setup *setup)
2519 {
2520         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2521         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2522         int err;
2523
2524         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2525         err = copy_mesh_setup(ifmsh, setup);
2526         if (err)
2527                 return err;
2528
2529         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2530
2531         /* can mesh use other SMPS modes? */
2532         sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
2533         sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
2534
2535         mutex_lock(&sdata->local->mtx);
2536         err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef,
2537                                          IEEE80211_CHANCTX_SHARED);
2538         mutex_unlock(&sdata->local->mtx);
2539         if (err)
2540                 return err;
2541
2542         return ieee80211_start_mesh(sdata);
2543 }
2544
2545 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2546 {
2547         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2548
2549         ieee80211_stop_mesh(sdata);
2550         mutex_lock(&sdata->local->mtx);
2551         ieee80211_link_release_channel(&sdata->deflink);
2552         kfree(sdata->u.mesh.ie);
2553         mutex_unlock(&sdata->local->mtx);
2554
2555         return 0;
2556 }
2557 #endif
2558
2559 static int ieee80211_change_bss(struct wiphy *wiphy,
2560                                 struct net_device *dev,
2561                                 struct bss_parameters *params)
2562 {
2563         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2564         struct ieee80211_link_data *link;
2565         struct ieee80211_supported_band *sband;
2566         u32 changed = 0;
2567
2568         link = ieee80211_link_or_deflink(sdata, params->link_id, true);
2569         if (IS_ERR(link))
2570                 return PTR_ERR(link);
2571
2572         if (!sdata_dereference(link->u.ap.beacon, sdata))
2573                 return -ENOENT;
2574
2575         sband = ieee80211_get_link_sband(link);
2576         if (!sband)
2577                 return -EINVAL;
2578
2579         if (params->use_cts_prot >= 0) {
2580                 link->conf->use_cts_prot = params->use_cts_prot;
2581                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2582         }
2583         if (params->use_short_preamble >= 0) {
2584                 link->conf->use_short_preamble = params->use_short_preamble;
2585                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2586         }
2587
2588         if (!link->conf->use_short_slot &&
2589             (sband->band == NL80211_BAND_5GHZ ||
2590              sband->band == NL80211_BAND_6GHZ)) {
2591                 link->conf->use_short_slot = true;
2592                 changed |= BSS_CHANGED_ERP_SLOT;
2593         }
2594
2595         if (params->use_short_slot_time >= 0) {
2596                 link->conf->use_short_slot = params->use_short_slot_time;
2597                 changed |= BSS_CHANGED_ERP_SLOT;
2598         }
2599
2600         if (params->basic_rates) {
2601                 ieee80211_parse_bitrates(link->conf->chandef.width,
2602                                          wiphy->bands[sband->band],
2603                                          params->basic_rates,
2604                                          params->basic_rates_len,
2605                                          &link->conf->basic_rates);
2606                 changed |= BSS_CHANGED_BASIC_RATES;
2607                 ieee80211_check_rate_mask(link);
2608         }
2609
2610         if (params->ap_isolate >= 0) {
2611                 if (params->ap_isolate)
2612                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2613                 else
2614                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2615                 ieee80211_check_fast_rx_iface(sdata);
2616         }
2617
2618         if (params->ht_opmode >= 0) {
2619                 link->conf->ht_operation_mode = (u16)params->ht_opmode;
2620                 changed |= BSS_CHANGED_HT;
2621         }
2622
2623         if (params->p2p_ctwindow >= 0) {
2624                 link->conf->p2p_noa_attr.oppps_ctwindow &=
2625                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2626                 link->conf->p2p_noa_attr.oppps_ctwindow |=
2627                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2628                 changed |= BSS_CHANGED_P2P_PS;
2629         }
2630
2631         if (params->p2p_opp_ps > 0) {
2632                 link->conf->p2p_noa_attr.oppps_ctwindow |=
2633                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2634                 changed |= BSS_CHANGED_P2P_PS;
2635         } else if (params->p2p_opp_ps == 0) {
2636                 link->conf->p2p_noa_attr.oppps_ctwindow &=
2637                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2638                 changed |= BSS_CHANGED_P2P_PS;
2639         }
2640
2641         ieee80211_link_info_change_notify(sdata, link, changed);
2642
2643         return 0;
2644 }
2645
2646 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2647                                     struct net_device *dev,
2648                                     struct ieee80211_txq_params *params)
2649 {
2650         struct ieee80211_local *local = wiphy_priv(wiphy);
2651         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2652         struct ieee80211_link_data *link =
2653                 ieee80211_link_or_deflink(sdata, params->link_id, true);
2654         struct ieee80211_tx_queue_params p;
2655
2656         if (!local->ops->conf_tx)
2657                 return -EOPNOTSUPP;
2658
2659         if (local->hw.queues < IEEE80211_NUM_ACS)
2660                 return -EOPNOTSUPP;
2661
2662         if (IS_ERR(link))
2663                 return PTR_ERR(link);
2664
2665         memset(&p, 0, sizeof(p));
2666         p.aifs = params->aifs;
2667         p.cw_max = params->cwmax;
2668         p.cw_min = params->cwmin;
2669         p.txop = params->txop;
2670
2671         /*
2672          * Setting tx queue params disables u-apsd because it's only
2673          * called in master mode.
2674          */
2675         p.uapsd = false;
2676
2677         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2678
2679         link->tx_conf[params->ac] = p;
2680         if (drv_conf_tx(local, link, params->ac, &p)) {
2681                 wiphy_debug(local->hw.wiphy,
2682                             "failed to set TX queue parameters for AC %d\n",
2683                             params->ac);
2684                 return -EINVAL;
2685         }
2686
2687         ieee80211_link_info_change_notify(sdata, link,
2688                                           BSS_CHANGED_QOS);
2689
2690         return 0;
2691 }
2692
2693 #ifdef CONFIG_PM
2694 static int ieee80211_suspend(struct wiphy *wiphy,
2695                              struct cfg80211_wowlan *wowlan)
2696 {
2697         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2698 }
2699
2700 static int ieee80211_resume(struct wiphy *wiphy)
2701 {
2702         return __ieee80211_resume(wiphy_priv(wiphy));
2703 }
2704 #else
2705 #define ieee80211_suspend NULL
2706 #define ieee80211_resume NULL
2707 #endif
2708
2709 static int ieee80211_scan(struct wiphy *wiphy,
2710                           struct cfg80211_scan_request *req)
2711 {
2712         struct ieee80211_sub_if_data *sdata;
2713
2714         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2715
2716         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2717         case NL80211_IFTYPE_STATION:
2718         case NL80211_IFTYPE_ADHOC:
2719         case NL80211_IFTYPE_MESH_POINT:
2720         case NL80211_IFTYPE_P2P_CLIENT:
2721         case NL80211_IFTYPE_P2P_DEVICE:
2722                 break;
2723         case NL80211_IFTYPE_P2P_GO:
2724                 if (sdata->local->ops->hw_scan)
2725                         break;
2726                 /*
2727                  * FIXME: implement NoA while scanning in software,
2728                  * for now fall through to allow scanning only when
2729                  * beaconing hasn't been configured yet
2730                  */
2731                 fallthrough;
2732         case NL80211_IFTYPE_AP:
2733                 /*
2734                  * If the scan has been forced (and the driver supports
2735                  * forcing), don't care about being beaconing already.
2736                  * This will create problems to the attached stations (e.g. all
2737                  * the frames sent while scanning on other channel will be
2738                  * lost)
2739                  */
2740                 if (sdata->deflink.u.ap.beacon &&
2741                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2742                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2743                         return -EOPNOTSUPP;
2744                 break;
2745         case NL80211_IFTYPE_NAN:
2746         default:
2747                 return -EOPNOTSUPP;
2748         }
2749
2750         return ieee80211_request_scan(sdata, req);
2751 }
2752
2753 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2754 {
2755         ieee80211_scan_cancel(wiphy_priv(wiphy));
2756 }
2757
2758 static int
2759 ieee80211_sched_scan_start(struct wiphy *wiphy,
2760                            struct net_device *dev,
2761                            struct cfg80211_sched_scan_request *req)
2762 {
2763         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2764
2765         if (!sdata->local->ops->sched_scan_start)
2766                 return -EOPNOTSUPP;
2767
2768         return ieee80211_request_sched_scan_start(sdata, req);
2769 }
2770
2771 static int
2772 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2773                           u64 reqid)
2774 {
2775         struct ieee80211_local *local = wiphy_priv(wiphy);
2776
2777         if (!local->ops->sched_scan_stop)
2778                 return -EOPNOTSUPP;
2779
2780         return ieee80211_request_sched_scan_stop(local);
2781 }
2782
2783 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2784                           struct cfg80211_auth_request *req)
2785 {
2786         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2787 }
2788
2789 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2790                            struct cfg80211_assoc_request *req)
2791 {
2792         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2793 }
2794
2795 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2796                             struct cfg80211_deauth_request *req)
2797 {
2798         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2799 }
2800
2801 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2802                               struct cfg80211_disassoc_request *req)
2803 {
2804         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2805 }
2806
2807 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2808                                struct cfg80211_ibss_params *params)
2809 {
2810         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2811 }
2812
2813 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2814 {
2815         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2816 }
2817
2818 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2819                               struct ocb_setup *setup)
2820 {
2821         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2822 }
2823
2824 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2825 {
2826         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2827 }
2828
2829 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2830                                     int rate[NUM_NL80211_BANDS])
2831 {
2832         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2833
2834         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2835                sizeof(int) * NUM_NL80211_BANDS);
2836
2837         ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2838                                           BSS_CHANGED_MCAST_RATE);
2839
2840         return 0;
2841 }
2842
2843 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2844 {
2845         struct ieee80211_local *local = wiphy_priv(wiphy);
2846         int err;
2847
2848         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2849                 ieee80211_check_fast_xmit_all(local);
2850
2851                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2852
2853                 if (err) {
2854                         ieee80211_check_fast_xmit_all(local);
2855                         return err;
2856                 }
2857         }
2858
2859         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2860             (changed & WIPHY_PARAM_DYN_ACK)) {
2861                 s16 coverage_class;
2862
2863                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2864                                         wiphy->coverage_class : -1;
2865                 err = drv_set_coverage_class(local, coverage_class);
2866
2867                 if (err)
2868                         return err;
2869         }
2870
2871         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2872                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2873
2874                 if (err)
2875                         return err;
2876         }
2877
2878         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2879                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2880                         return -EINVAL;
2881                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2882         }
2883         if (changed & WIPHY_PARAM_RETRY_LONG) {
2884                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2885                         return -EINVAL;
2886                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2887         }
2888         if (changed &
2889             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2890                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2891
2892         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2893                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2894                        WIPHY_PARAM_TXQ_QUANTUM))
2895                 ieee80211_txq_set_params(local);
2896
2897         return 0;
2898 }
2899
2900 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2901                                   struct wireless_dev *wdev,
2902                                   enum nl80211_tx_power_setting type, int mbm)
2903 {
2904         struct ieee80211_local *local = wiphy_priv(wiphy);
2905         struct ieee80211_sub_if_data *sdata;
2906         enum nl80211_tx_power_setting txp_type = type;
2907         bool update_txp_type = false;
2908         bool has_monitor = false;
2909
2910         if (wdev) {
2911                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2912
2913                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2914                         sdata = wiphy_dereference(local->hw.wiphy,
2915                                                   local->monitor_sdata);
2916                         if (!sdata)
2917                                 return -EOPNOTSUPP;
2918                 }
2919
2920                 switch (type) {
2921                 case NL80211_TX_POWER_AUTOMATIC:
2922                         sdata->deflink.user_power_level =
2923                                 IEEE80211_UNSET_POWER_LEVEL;
2924                         txp_type = NL80211_TX_POWER_LIMITED;
2925                         break;
2926                 case NL80211_TX_POWER_LIMITED:
2927                 case NL80211_TX_POWER_FIXED:
2928                         if (mbm < 0 || (mbm % 100))
2929                                 return -EOPNOTSUPP;
2930                         sdata->deflink.user_power_level = MBM_TO_DBM(mbm);
2931                         break;
2932                 }
2933
2934                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2935                         update_txp_type = true;
2936                         sdata->vif.bss_conf.txpower_type = txp_type;
2937                 }
2938
2939                 ieee80211_recalc_txpower(sdata, update_txp_type);
2940
2941                 return 0;
2942         }
2943
2944         switch (type) {
2945         case NL80211_TX_POWER_AUTOMATIC:
2946                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2947                 txp_type = NL80211_TX_POWER_LIMITED;
2948                 break;
2949         case NL80211_TX_POWER_LIMITED:
2950         case NL80211_TX_POWER_FIXED:
2951                 if (mbm < 0 || (mbm % 100))
2952                         return -EOPNOTSUPP;
2953                 local->user_power_level = MBM_TO_DBM(mbm);
2954                 break;
2955         }
2956
2957         mutex_lock(&local->iflist_mtx);
2958         list_for_each_entry(sdata, &local->interfaces, list) {
2959                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2960                         has_monitor = true;
2961                         continue;
2962                 }
2963                 sdata->deflink.user_power_level = local->user_power_level;
2964                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2965                         update_txp_type = true;
2966                 sdata->vif.bss_conf.txpower_type = txp_type;
2967         }
2968         list_for_each_entry(sdata, &local->interfaces, list) {
2969                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2970                         continue;
2971                 ieee80211_recalc_txpower(sdata, update_txp_type);
2972         }
2973         mutex_unlock(&local->iflist_mtx);
2974
2975         if (has_monitor) {
2976                 sdata = wiphy_dereference(local->hw.wiphy,
2977                                           local->monitor_sdata);
2978                 if (sdata) {
2979                         sdata->deflink.user_power_level = local->user_power_level;
2980                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2981                                 update_txp_type = true;
2982                         sdata->vif.bss_conf.txpower_type = txp_type;
2983
2984                         ieee80211_recalc_txpower(sdata, update_txp_type);
2985                 }
2986         }
2987
2988         return 0;
2989 }
2990
2991 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2992                                   struct wireless_dev *wdev,
2993                                   int *dbm)
2994 {
2995         struct ieee80211_local *local = wiphy_priv(wiphy);
2996         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2997
2998         if (local->ops->get_txpower)
2999                 return drv_get_txpower(local, sdata, dbm);
3000
3001         if (!local->use_chanctx)
3002                 *dbm = local->hw.conf.power_level;
3003         else
3004                 *dbm = sdata->vif.bss_conf.txpower;
3005
3006         return 0;
3007 }
3008
3009 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
3010 {
3011         struct ieee80211_local *local = wiphy_priv(wiphy);
3012
3013         drv_rfkill_poll(local);
3014 }
3015
3016 #ifdef CONFIG_NL80211_TESTMODE
3017 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
3018                                   struct wireless_dev *wdev,
3019                                   void *data, int len)
3020 {
3021         struct ieee80211_local *local = wiphy_priv(wiphy);
3022         struct ieee80211_vif *vif = NULL;
3023
3024         if (!local->ops->testmode_cmd)
3025                 return -EOPNOTSUPP;
3026
3027         if (wdev) {
3028                 struct ieee80211_sub_if_data *sdata;
3029
3030                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3031                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
3032                         vif = &sdata->vif;
3033         }
3034
3035         return local->ops->testmode_cmd(&local->hw, vif, data, len);
3036 }
3037
3038 static int ieee80211_testmode_dump(struct wiphy *wiphy,
3039                                    struct sk_buff *skb,
3040                                    struct netlink_callback *cb,
3041                                    void *data, int len)
3042 {
3043         struct ieee80211_local *local = wiphy_priv(wiphy);
3044
3045         if (!local->ops->testmode_dump)
3046                 return -EOPNOTSUPP;
3047
3048         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
3049 }
3050 #endif
3051
3052 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
3053                                  struct ieee80211_link_data *link,
3054                                  enum ieee80211_smps_mode smps_mode)
3055 {
3056         const u8 *ap;
3057         enum ieee80211_smps_mode old_req;
3058         int err;
3059         struct sta_info *sta;
3060         bool tdls_peer_found = false;
3061
3062         lockdep_assert_held(&sdata->wdev.mtx);
3063
3064         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
3065                 return -EINVAL;
3066
3067         old_req = link->u.mgd.req_smps;
3068         link->u.mgd.req_smps = smps_mode;
3069
3070         if (old_req == smps_mode &&
3071             smps_mode != IEEE80211_SMPS_AUTOMATIC)
3072                 return 0;
3073
3074         /*
3075          * If not associated, or current association is not an HT
3076          * association, there's no need to do anything, just store
3077          * the new value until we associate.
3078          */
3079         if (!sdata->u.mgd.associated ||
3080             link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
3081                 return 0;
3082
3083         ap = link->u.mgd.bssid;
3084
3085         rcu_read_lock();
3086         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
3087                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
3088                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
3089                         continue;
3090
3091                 tdls_peer_found = true;
3092                 break;
3093         }
3094         rcu_read_unlock();
3095
3096         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
3097                 if (tdls_peer_found || !sdata->u.mgd.powersave)
3098                         smps_mode = IEEE80211_SMPS_OFF;
3099                 else
3100                         smps_mode = IEEE80211_SMPS_DYNAMIC;
3101         }
3102
3103         /* send SM PS frame to AP */
3104         err = ieee80211_send_smps_action(sdata, smps_mode,
3105                                          ap, ap);
3106         if (err)
3107                 link->u.mgd.req_smps = old_req;
3108         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
3109                 ieee80211_teardown_tdls_peers(sdata);
3110
3111         return err;
3112 }
3113
3114 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
3115                                     bool enabled, int timeout)
3116 {
3117         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3118         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3119         unsigned int link_id;
3120
3121         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3122                 return -EOPNOTSUPP;
3123
3124         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
3125                 return -EOPNOTSUPP;
3126
3127         if (enabled == sdata->u.mgd.powersave &&
3128             timeout == local->dynamic_ps_forced_timeout)
3129                 return 0;
3130
3131         sdata->u.mgd.powersave = enabled;
3132         local->dynamic_ps_forced_timeout = timeout;
3133
3134         /* no change, but if automatic follow powersave */
3135         sdata_lock(sdata);
3136         for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
3137                 struct ieee80211_link_data *link;
3138
3139                 link = sdata_dereference(sdata->link[link_id], sdata);
3140
3141                 if (!link)
3142                         continue;
3143                 __ieee80211_request_smps_mgd(sdata, link,
3144                                              link->u.mgd.req_smps);
3145         }
3146         sdata_unlock(sdata);
3147
3148         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3149                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
3150
3151         ieee80211_recalc_ps(local);
3152         ieee80211_recalc_ps_vif(sdata);
3153         ieee80211_check_fast_rx_iface(sdata);
3154
3155         return 0;
3156 }
3157
3158 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3159                                          struct net_device *dev,
3160                                          s32 rssi_thold, u32 rssi_hyst)
3161 {
3162         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3163         struct ieee80211_vif *vif = &sdata->vif;
3164         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3165
3166         if (rssi_thold == bss_conf->cqm_rssi_thold &&
3167             rssi_hyst == bss_conf->cqm_rssi_hyst)
3168                 return 0;
3169
3170         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3171             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3172                 return -EOPNOTSUPP;
3173
3174         bss_conf->cqm_rssi_thold = rssi_thold;
3175         bss_conf->cqm_rssi_hyst = rssi_hyst;
3176         bss_conf->cqm_rssi_low = 0;
3177         bss_conf->cqm_rssi_high = 0;
3178         sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3179
3180         /* tell the driver upon association, unless already associated */
3181         if (sdata->u.mgd.associated &&
3182             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3183                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3184                                                   BSS_CHANGED_CQM);
3185
3186         return 0;
3187 }
3188
3189 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3190                                                struct net_device *dev,
3191                                                s32 rssi_low, s32 rssi_high)
3192 {
3193         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3194         struct ieee80211_vif *vif = &sdata->vif;
3195         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3196
3197         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
3198                 return -EOPNOTSUPP;
3199
3200         bss_conf->cqm_rssi_low = rssi_low;
3201         bss_conf->cqm_rssi_high = rssi_high;
3202         bss_conf->cqm_rssi_thold = 0;
3203         bss_conf->cqm_rssi_hyst = 0;
3204         sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3205
3206         /* tell the driver upon association, unless already associated */
3207         if (sdata->u.mgd.associated &&
3208             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3209                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3210                                                   BSS_CHANGED_CQM);
3211
3212         return 0;
3213 }
3214
3215 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3216                                       struct net_device *dev,
3217                                       unsigned int link_id,
3218                                       const u8 *addr,
3219                                       const struct cfg80211_bitrate_mask *mask)
3220 {
3221         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3222         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3223         int i, ret;
3224
3225         if (!ieee80211_sdata_running(sdata))
3226                 return -ENETDOWN;
3227
3228         /*
3229          * If active validate the setting and reject it if it doesn't leave
3230          * at least one basic rate usable, since we really have to be able
3231          * to send something, and if we're an AP we have to be able to do
3232          * so at a basic rate so that all clients can receive it.
3233          */
3234         if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3235             sdata->vif.bss_conf.chandef.chan) {
3236                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3237                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
3238
3239                 if (!(mask->control[band].legacy & basic_rates))
3240                         return -EINVAL;
3241         }
3242
3243         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3244                 ret = drv_set_bitrate_mask(local, sdata, mask);
3245                 if (ret)
3246                         return ret;
3247         }
3248
3249         for (i = 0; i < NUM_NL80211_BANDS; i++) {
3250                 struct ieee80211_supported_band *sband = wiphy->bands[i];
3251                 int j;
3252
3253                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3254                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3255                        sizeof(mask->control[i].ht_mcs));
3256                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3257                        mask->control[i].vht_mcs,
3258                        sizeof(mask->control[i].vht_mcs));
3259
3260                 sdata->rc_has_mcs_mask[i] = false;
3261                 sdata->rc_has_vht_mcs_mask[i] = false;
3262                 if (!sband)
3263                         continue;
3264
3265                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3266                         if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3267                                 sdata->rc_has_mcs_mask[i] = true;
3268                                 break;
3269                         }
3270                 }
3271
3272                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3273                         if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3274                                 sdata->rc_has_vht_mcs_mask[i] = true;
3275                                 break;
3276                         }
3277                 }
3278         }
3279
3280         return 0;
3281 }
3282
3283 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3284                                            struct net_device *dev,
3285                                            struct cfg80211_chan_def *chandef,
3286                                            u32 cac_time_ms)
3287 {
3288         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3289         struct ieee80211_local *local = sdata->local;
3290         int err;
3291
3292         mutex_lock(&local->mtx);
3293         if (!list_empty(&local->roc_list) || local->scanning) {
3294                 err = -EBUSY;
3295                 goto out_unlock;
3296         }
3297
3298         /* whatever, but channel contexts should not complain about that one */
3299         sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
3300         sdata->deflink.needed_rx_chains = local->rx_chains;
3301
3302         err = ieee80211_link_use_channel(&sdata->deflink, chandef,
3303                                          IEEE80211_CHANCTX_SHARED);
3304         if (err)
3305                 goto out_unlock;
3306
3307         ieee80211_queue_delayed_work(&sdata->local->hw,
3308                                      &sdata->deflink.dfs_cac_timer_work,
3309                                      msecs_to_jiffies(cac_time_ms));
3310
3311  out_unlock:
3312         mutex_unlock(&local->mtx);
3313         return err;
3314 }
3315
3316 static void ieee80211_end_cac(struct wiphy *wiphy,
3317                               struct net_device *dev)
3318 {
3319         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3320         struct ieee80211_local *local = sdata->local;
3321
3322         mutex_lock(&local->mtx);
3323         list_for_each_entry(sdata, &local->interfaces, list) {
3324                 /* it might be waiting for the local->mtx, but then
3325                  * by the time it gets it, sdata->wdev.cac_started
3326                  * will no longer be true
3327                  */
3328                 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work);
3329
3330                 if (sdata->wdev.cac_started) {
3331                         ieee80211_link_release_channel(&sdata->deflink);
3332                         sdata->wdev.cac_started = false;
3333                 }
3334         }
3335         mutex_unlock(&local->mtx);
3336 }
3337
3338 static struct cfg80211_beacon_data *
3339 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3340 {
3341         struct cfg80211_beacon_data *new_beacon;
3342         u8 *pos;
3343         int len;
3344
3345         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3346               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3347               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len +
3348               ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies);
3349
3350         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3351         if (!new_beacon)
3352                 return NULL;
3353
3354         if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3355                 new_beacon->mbssid_ies =
3356                         kzalloc(struct_size(new_beacon->mbssid_ies,
3357                                             elem, beacon->mbssid_ies->cnt),
3358                                 GFP_KERNEL);
3359                 if (!new_beacon->mbssid_ies) {
3360                         kfree(new_beacon);
3361                         return NULL;
3362                 }
3363         }
3364
3365         pos = (u8 *)(new_beacon + 1);
3366         if (beacon->head_len) {
3367                 new_beacon->head_len = beacon->head_len;
3368                 new_beacon->head = pos;
3369                 memcpy(pos, beacon->head, beacon->head_len);
3370                 pos += beacon->head_len;
3371         }
3372         if (beacon->tail_len) {
3373                 new_beacon->tail_len = beacon->tail_len;
3374                 new_beacon->tail = pos;
3375                 memcpy(pos, beacon->tail, beacon->tail_len);
3376                 pos += beacon->tail_len;
3377         }
3378         if (beacon->beacon_ies_len) {
3379                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3380                 new_beacon->beacon_ies = pos;
3381                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3382                 pos += beacon->beacon_ies_len;
3383         }
3384         if (beacon->proberesp_ies_len) {
3385                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3386                 new_beacon->proberesp_ies = pos;
3387                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3388                 pos += beacon->proberesp_ies_len;
3389         }
3390         if (beacon->assocresp_ies_len) {
3391                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3392                 new_beacon->assocresp_ies = pos;
3393                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3394                 pos += beacon->assocresp_ies_len;
3395         }
3396         if (beacon->probe_resp_len) {
3397                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3398                 new_beacon->probe_resp = pos;
3399                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3400                 pos += beacon->probe_resp_len;
3401         }
3402         if (beacon->mbssid_ies && beacon->mbssid_ies->cnt)
3403                 pos += ieee80211_copy_mbssid_beacon(pos,
3404                                                     new_beacon->mbssid_ies,
3405                                                     beacon->mbssid_ies);
3406
3407         /* might copy -1, meaning no changes requested */
3408         new_beacon->ftm_responder = beacon->ftm_responder;
3409         if (beacon->lci) {
3410                 new_beacon->lci_len = beacon->lci_len;
3411                 new_beacon->lci = pos;
3412                 memcpy(pos, beacon->lci, beacon->lci_len);
3413                 pos += beacon->lci_len;
3414         }
3415         if (beacon->civicloc) {
3416                 new_beacon->civicloc_len = beacon->civicloc_len;
3417                 new_beacon->civicloc = pos;
3418                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3419                 pos += beacon->civicloc_len;
3420         }
3421
3422         return new_beacon;
3423 }
3424
3425 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3426 {
3427         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3428         struct ieee80211_local *local = sdata->local;
3429
3430         rcu_read_lock();
3431
3432         if (vif->mbssid_tx_vif == vif) {
3433                 /* Trigger ieee80211_csa_finish() on the non-transmitting
3434                  * interfaces when channel switch is received on
3435                  * transmitting interface
3436                  */
3437                 struct ieee80211_sub_if_data *iter;
3438
3439                 list_for_each_entry_rcu(iter, &local->interfaces, list) {
3440                         if (!ieee80211_sdata_running(iter))
3441                                 continue;
3442
3443                         if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
3444                                 continue;
3445
3446                         ieee80211_queue_work(&iter->local->hw,
3447                                              &iter->deflink.csa_finalize_work);
3448                 }
3449         }
3450         ieee80211_queue_work(&local->hw, &sdata->deflink.csa_finalize_work);
3451
3452         rcu_read_unlock();
3453 }
3454 EXPORT_SYMBOL(ieee80211_csa_finish);
3455
3456 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx)
3457 {
3458         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3459         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3460         struct ieee80211_local *local = sdata->local;
3461
3462         sdata->deflink.csa_block_tx = block_tx;
3463         sdata_info(sdata, "channel switch failed, disconnecting\n");
3464         ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work);
3465 }
3466 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3467
3468 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3469                                           u32 *changed)
3470 {
3471         int err;
3472
3473         switch (sdata->vif.type) {
3474         case NL80211_IFTYPE_AP:
3475                 if (!sdata->deflink.u.ap.next_beacon)
3476                         return -EINVAL;
3477
3478                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3479                                               sdata->deflink.u.ap.next_beacon,
3480                                               NULL, NULL);
3481                 ieee80211_free_next_beacon(&sdata->deflink);
3482
3483                 if (err < 0)
3484                         return err;
3485                 *changed |= err;
3486                 break;
3487         case NL80211_IFTYPE_ADHOC:
3488                 err = ieee80211_ibss_finish_csa(sdata);
3489                 if (err < 0)
3490                         return err;
3491                 *changed |= err;
3492                 break;
3493 #ifdef CONFIG_MAC80211_MESH
3494         case NL80211_IFTYPE_MESH_POINT:
3495                 err = ieee80211_mesh_finish_csa(sdata);
3496                 if (err < 0)
3497                         return err;
3498                 *changed |= err;
3499                 break;
3500 #endif
3501         default:
3502                 WARN_ON(1);
3503                 return -EINVAL;
3504         }
3505
3506         return 0;
3507 }
3508
3509 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3510 {
3511         struct ieee80211_local *local = sdata->local;
3512         u32 changed = 0;
3513         int err;
3514
3515         sdata_assert_lock(sdata);
3516         lockdep_assert_held(&local->mtx);
3517         lockdep_assert_held(&local->chanctx_mtx);
3518
3519         /*
3520          * using reservation isn't immediate as it may be deferred until later
3521          * with multi-vif. once reservation is complete it will re-schedule the
3522          * work with no reserved_chanctx so verify chandef to check if it
3523          * completed successfully
3524          */
3525
3526         if (sdata->deflink.reserved_chanctx) {
3527                 /*
3528                  * with multi-vif csa driver may call ieee80211_csa_finish()
3529                  * many times while waiting for other interfaces to use their
3530                  * reservations
3531                  */
3532                 if (sdata->deflink.reserved_ready)
3533                         return 0;
3534
3535                 return ieee80211_link_use_reserved_context(&sdata->deflink);
3536         }
3537
3538         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3539                                         &sdata->deflink.csa_chandef))
3540                 return -EINVAL;
3541
3542         sdata->vif.bss_conf.csa_active = false;
3543
3544         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3545         if (err)
3546                 return err;
3547
3548         ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
3549
3550         if (sdata->deflink.csa_block_tx) {
3551                 ieee80211_wake_vif_queues(local, sdata,
3552                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3553                 sdata->deflink.csa_block_tx = false;
3554         }
3555
3556         err = drv_post_channel_switch(sdata);
3557         if (err)
3558                 return err;
3559
3560         cfg80211_ch_switch_notify(sdata->dev, &sdata->deflink.csa_chandef, 0);
3561
3562         return 0;
3563 }
3564
3565 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3566 {
3567         if (__ieee80211_csa_finalize(sdata)) {
3568                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3569                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3570                                     GFP_KERNEL);
3571         }
3572 }
3573
3574 void ieee80211_csa_finalize_work(struct work_struct *work)
3575 {
3576         struct ieee80211_sub_if_data *sdata =
3577                 container_of(work, struct ieee80211_sub_if_data,
3578                              deflink.csa_finalize_work);
3579         struct ieee80211_local *local = sdata->local;
3580
3581         sdata_lock(sdata);
3582         mutex_lock(&local->mtx);
3583         mutex_lock(&local->chanctx_mtx);
3584
3585         /* AP might have been stopped while waiting for the lock. */
3586         if (!sdata->vif.bss_conf.csa_active)
3587                 goto unlock;
3588
3589         if (!ieee80211_sdata_running(sdata))
3590                 goto unlock;
3591
3592         ieee80211_csa_finalize(sdata);
3593
3594 unlock:
3595         mutex_unlock(&local->chanctx_mtx);
3596         mutex_unlock(&local->mtx);
3597         sdata_unlock(sdata);
3598 }
3599
3600 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3601                                     struct cfg80211_csa_settings *params,
3602                                     u32 *changed)
3603 {
3604         struct ieee80211_csa_settings csa = {};
3605         int err;
3606
3607         switch (sdata->vif.type) {
3608         case NL80211_IFTYPE_AP:
3609                 sdata->deflink.u.ap.next_beacon =
3610                         cfg80211_beacon_dup(&params->beacon_after);
3611                 if (!sdata->deflink.u.ap.next_beacon)
3612                         return -ENOMEM;
3613
3614                 /*
3615                  * With a count of 0, we don't have to wait for any
3616                  * TBTT before switching, so complete the CSA
3617                  * immediately.  In theory, with a count == 1 we
3618                  * should delay the switch until just before the next
3619                  * TBTT, but that would complicate things so we switch
3620                  * immediately too.  If we would delay the switch
3621                  * until the next TBTT, we would have to set the probe
3622                  * response here.
3623                  *
3624                  * TODO: A channel switch with count <= 1 without
3625                  * sending a CSA action frame is kind of useless,
3626                  * because the clients won't know we're changing
3627                  * channels.  The action frame must be implemented
3628                  * either here or in the userspace.
3629                  */
3630                 if (params->count <= 1)
3631                         break;
3632
3633                 if ((params->n_counter_offsets_beacon >
3634                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3635                     (params->n_counter_offsets_presp >
3636                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3637                         ieee80211_free_next_beacon(&sdata->deflink);
3638                         return -EINVAL;
3639                 }
3640
3641                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3642                 csa.counter_offsets_presp = params->counter_offsets_presp;
3643                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3644                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3645                 csa.count = params->count;
3646
3647                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3648                                               &params->beacon_csa, &csa,
3649                                               NULL);
3650                 if (err < 0) {
3651                         ieee80211_free_next_beacon(&sdata->deflink);
3652                         return err;
3653                 }
3654                 *changed |= err;
3655
3656                 break;
3657         case NL80211_IFTYPE_ADHOC:
3658                 if (!sdata->vif.cfg.ibss_joined)
3659                         return -EINVAL;
3660
3661                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3662                         return -EINVAL;
3663
3664                 switch (params->chandef.width) {
3665                 case NL80211_CHAN_WIDTH_40:
3666                         if (cfg80211_get_chandef_type(&params->chandef) !=
3667                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3668                                 return -EINVAL;
3669                         break;
3670                 case NL80211_CHAN_WIDTH_5:
3671                 case NL80211_CHAN_WIDTH_10:
3672                 case NL80211_CHAN_WIDTH_20_NOHT:
3673                 case NL80211_CHAN_WIDTH_20:
3674                         break;
3675                 default:
3676                         return -EINVAL;
3677                 }
3678
3679                 /* changes into another band are not supported */
3680                 if (sdata->u.ibss.chandef.chan->band !=
3681                     params->chandef.chan->band)
3682                         return -EINVAL;
3683
3684                 /* see comments in the NL80211_IFTYPE_AP block */
3685                 if (params->count > 1) {
3686                         err = ieee80211_ibss_csa_beacon(sdata, params);
3687                         if (err < 0)
3688                                 return err;
3689                         *changed |= err;
3690                 }
3691
3692                 ieee80211_send_action_csa(sdata, params);
3693
3694                 break;
3695 #ifdef CONFIG_MAC80211_MESH
3696         case NL80211_IFTYPE_MESH_POINT: {
3697                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3698
3699                 /* changes into another band are not supported */
3700                 if (sdata->vif.bss_conf.chandef.chan->band !=
3701                     params->chandef.chan->band)
3702                         return -EINVAL;
3703
3704                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3705                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3706                         if (!ifmsh->pre_value)
3707                                 ifmsh->pre_value = 1;
3708                         else
3709                                 ifmsh->pre_value++;
3710                 }
3711
3712                 /* see comments in the NL80211_IFTYPE_AP block */
3713                 if (params->count > 1) {
3714                         err = ieee80211_mesh_csa_beacon(sdata, params);
3715                         if (err < 0) {
3716                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3717                                 return err;
3718                         }
3719                         *changed |= err;
3720                 }
3721
3722                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3723                         ieee80211_send_action_csa(sdata, params);
3724
3725                 break;
3726                 }
3727 #endif
3728         default:
3729                 return -EOPNOTSUPP;
3730         }
3731
3732         return 0;
3733 }
3734
3735 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data  *sdata)
3736 {
3737         sdata->vif.bss_conf.color_change_active = false;
3738
3739         ieee80211_free_next_beacon(&sdata->deflink);
3740
3741         cfg80211_color_change_aborted_notify(sdata->dev);
3742 }
3743
3744 static int
3745 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3746                            struct cfg80211_csa_settings *params)
3747 {
3748         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3749         struct ieee80211_local *local = sdata->local;
3750         struct ieee80211_channel_switch ch_switch;
3751         struct ieee80211_chanctx_conf *conf;
3752         struct ieee80211_chanctx *chanctx;
3753         u32 changed = 0;
3754         int err;
3755
3756         sdata_assert_lock(sdata);
3757         lockdep_assert_held(&local->mtx);
3758
3759         if (!list_empty(&local->roc_list) || local->scanning)
3760                 return -EBUSY;
3761
3762         if (sdata->wdev.cac_started)
3763                 return -EBUSY;
3764
3765         if (cfg80211_chandef_identical(&params->chandef,
3766                                        &sdata->vif.bss_conf.chandef))
3767                 return -EINVAL;
3768
3769         /* don't allow another channel switch if one is already active. */
3770         if (sdata->vif.bss_conf.csa_active)
3771                 return -EBUSY;
3772
3773         mutex_lock(&local->chanctx_mtx);
3774         conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
3775                                          lockdep_is_held(&local->chanctx_mtx));
3776         if (!conf) {
3777                 err = -EBUSY;
3778                 goto out;
3779         }
3780
3781         if (params->chandef.chan->freq_offset) {
3782                 /* this may work, but is untested */
3783                 err = -EOPNOTSUPP;
3784                 goto out;
3785         }
3786
3787         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3788
3789         ch_switch.timestamp = 0;
3790         ch_switch.device_timestamp = 0;
3791         ch_switch.block_tx = params->block_tx;
3792         ch_switch.chandef = params->chandef;
3793         ch_switch.count = params->count;
3794
3795         err = drv_pre_channel_switch(sdata, &ch_switch);
3796         if (err)
3797                 goto out;
3798
3799         err = ieee80211_link_reserve_chanctx(&sdata->deflink, &params->chandef,
3800                                              chanctx->mode,
3801                                              params->radar_required);
3802         if (err)
3803                 goto out;
3804
3805         /* if reservation is invalid then this will fail */
3806         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3807         if (err) {
3808                 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3809                 goto out;
3810         }
3811
3812         /* if there is a color change in progress, abort it */
3813         if (sdata->vif.bss_conf.color_change_active)
3814                 ieee80211_color_change_abort(sdata);
3815
3816         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3817         if (err) {
3818                 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3819                 goto out;
3820         }
3821
3822         sdata->deflink.csa_chandef = params->chandef;
3823         sdata->deflink.csa_block_tx = params->block_tx;
3824         sdata->vif.bss_conf.csa_active = true;
3825
3826         if (sdata->deflink.csa_block_tx)
3827                 ieee80211_stop_vif_queues(local, sdata,
3828                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3829
3830         cfg80211_ch_switch_started_notify(sdata->dev,
3831                                           &sdata->deflink.csa_chandef, 0,
3832                                           params->count, params->block_tx);
3833
3834         if (changed) {
3835                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3836                                                   changed);
3837                 drv_channel_switch_beacon(sdata, &params->chandef);
3838         } else {
3839                 /* if the beacon didn't change, we can finalize immediately */
3840                 ieee80211_csa_finalize(sdata);
3841         }
3842
3843 out:
3844         mutex_unlock(&local->chanctx_mtx);
3845         return err;
3846 }
3847
3848 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3849                              struct cfg80211_csa_settings *params)
3850 {
3851         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3852         struct ieee80211_local *local = sdata->local;
3853         int err;
3854
3855         mutex_lock(&local->mtx);
3856         err = __ieee80211_channel_switch(wiphy, dev, params);
3857         mutex_unlock(&local->mtx);
3858
3859         return err;
3860 }
3861
3862 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3863 {
3864         lockdep_assert_held(&local->mtx);
3865
3866         local->roc_cookie_counter++;
3867
3868         /* wow, you wrapped 64 bits ... more likely a bug */
3869         if (WARN_ON(local->roc_cookie_counter == 0))
3870                 local->roc_cookie_counter++;
3871
3872         return local->roc_cookie_counter;
3873 }
3874
3875 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3876                              u64 *cookie, gfp_t gfp)
3877 {
3878         unsigned long spin_flags;
3879         struct sk_buff *ack_skb;
3880         int id;
3881
3882         ack_skb = skb_copy(skb, gfp);
3883         if (!ack_skb)
3884                 return -ENOMEM;
3885
3886         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3887         id = idr_alloc(&local->ack_status_frames, ack_skb,
3888                        1, 0x2000, GFP_ATOMIC);
3889         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3890
3891         if (id < 0) {
3892                 kfree_skb(ack_skb);
3893                 return -ENOMEM;
3894         }
3895
3896         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3897
3898         *cookie = ieee80211_mgmt_tx_cookie(local);
3899         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3900
3901         return 0;
3902 }
3903
3904 static void
3905 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3906                                           struct wireless_dev *wdev,
3907                                           struct mgmt_frame_regs *upd)
3908 {
3909         struct ieee80211_local *local = wiphy_priv(wiphy);
3910         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3911         u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3912         u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3913         bool global_change, intf_change;
3914
3915         global_change =
3916                 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3917                 (local->rx_mcast_action_reg !=
3918                  !!(upd->global_mcast_stypes & action_mask));
3919         local->probe_req_reg = upd->global_stypes & preq_mask;
3920         local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3921
3922         intf_change = (sdata->vif.probe_req_reg !=
3923                        !!(upd->interface_stypes & preq_mask)) ||
3924                 (sdata->vif.rx_mcast_action_reg !=
3925                  !!(upd->interface_mcast_stypes & action_mask));
3926         sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3927         sdata->vif.rx_mcast_action_reg =
3928                 upd->interface_mcast_stypes & action_mask;
3929
3930         if (!local->open_count)
3931                 return;
3932
3933         if (intf_change && ieee80211_sdata_running(sdata))
3934                 drv_config_iface_filter(local, sdata,
3935                                         sdata->vif.probe_req_reg ?
3936                                                 FIF_PROBE_REQ : 0,
3937                                         FIF_PROBE_REQ);
3938
3939         if (global_change)
3940                 ieee80211_configure_filter(local);
3941 }
3942
3943 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3944 {
3945         struct ieee80211_local *local = wiphy_priv(wiphy);
3946
3947         if (local->started)
3948                 return -EOPNOTSUPP;
3949
3950         return drv_set_antenna(local, tx_ant, rx_ant);
3951 }
3952
3953 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3954 {
3955         struct ieee80211_local *local = wiphy_priv(wiphy);
3956
3957         return drv_get_antenna(local, tx_ant, rx_ant);
3958 }
3959
3960 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3961                                     struct net_device *dev,
3962                                     struct cfg80211_gtk_rekey_data *data)
3963 {
3964         struct ieee80211_local *local = wiphy_priv(wiphy);
3965         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3966
3967         if (!local->ops->set_rekey_data)
3968                 return -EOPNOTSUPP;
3969
3970         drv_set_rekey_data(local, sdata, data);
3971
3972         return 0;
3973 }
3974
3975 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3976                                   const u8 *peer, u64 *cookie)
3977 {
3978         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3979         struct ieee80211_local *local = sdata->local;
3980         struct ieee80211_qos_hdr *nullfunc;
3981         struct sk_buff *skb;
3982         int size = sizeof(*nullfunc);
3983         __le16 fc;
3984         bool qos;
3985         struct ieee80211_tx_info *info;
3986         struct sta_info *sta;
3987         struct ieee80211_chanctx_conf *chanctx_conf;
3988         enum nl80211_band band;
3989         int ret;
3990
3991         /* the lock is needed to assign the cookie later */
3992         mutex_lock(&local->mtx);
3993
3994         rcu_read_lock();
3995         chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
3996         if (WARN_ON(!chanctx_conf)) {
3997                 ret = -EINVAL;
3998                 goto unlock;
3999         }
4000         band = chanctx_conf->def.chan->band;
4001         sta = sta_info_get_bss(sdata, peer);
4002         if (sta) {
4003                 qos = sta->sta.wme;
4004         } else {
4005                 ret = -ENOLINK;
4006                 goto unlock;
4007         }
4008
4009         if (qos) {
4010                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4011                                  IEEE80211_STYPE_QOS_NULLFUNC |
4012                                  IEEE80211_FCTL_FROMDS);
4013         } else {
4014                 size -= 2;
4015                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4016                                  IEEE80211_STYPE_NULLFUNC |
4017                                  IEEE80211_FCTL_FROMDS);
4018         }
4019
4020         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
4021         if (!skb) {
4022                 ret = -ENOMEM;
4023                 goto unlock;
4024         }
4025
4026         skb->dev = dev;
4027
4028         skb_reserve(skb, local->hw.extra_tx_headroom);
4029
4030         nullfunc = skb_put(skb, size);
4031         nullfunc->frame_control = fc;
4032         nullfunc->duration_id = 0;
4033         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
4034         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
4035         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
4036         nullfunc->seq_ctrl = 0;
4037
4038         info = IEEE80211_SKB_CB(skb);
4039
4040         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
4041                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
4042         info->band = band;
4043
4044         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
4045         skb->priority = 7;
4046         if (qos)
4047                 nullfunc->qos_ctrl = cpu_to_le16(7);
4048
4049         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
4050         if (ret) {
4051                 kfree_skb(skb);
4052                 goto unlock;
4053         }
4054
4055         local_bh_disable();
4056         ieee80211_xmit(sdata, sta, skb);
4057         local_bh_enable();
4058
4059         ret = 0;
4060 unlock:
4061         rcu_read_unlock();
4062         mutex_unlock(&local->mtx);
4063
4064         return ret;
4065 }
4066
4067 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
4068                                      struct wireless_dev *wdev,
4069                                      unsigned int link_id,
4070                                      struct cfg80211_chan_def *chandef)
4071 {
4072         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4073         struct ieee80211_local *local = wiphy_priv(wiphy);
4074         struct ieee80211_chanctx_conf *chanctx_conf;
4075         struct ieee80211_link_data *link;
4076         int ret = -ENODATA;
4077
4078         rcu_read_lock();
4079         link = rcu_dereference(sdata->link[link_id]);
4080         if (!link) {
4081                 ret = -ENOLINK;
4082                 goto out;
4083         }
4084
4085         chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
4086         if (chanctx_conf) {
4087                 *chandef = link->conf->chandef;
4088                 ret = 0;
4089         } else if (local->open_count > 0 &&
4090                    local->open_count == local->monitors &&
4091                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
4092                 if (local->use_chanctx)
4093                         *chandef = local->monitor_chandef;
4094                 else
4095                         *chandef = local->_oper_chandef;
4096                 ret = 0;
4097         }
4098 out:
4099         rcu_read_unlock();
4100
4101         return ret;
4102 }
4103
4104 #ifdef CONFIG_PM
4105 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
4106 {
4107         drv_set_wakeup(wiphy_priv(wiphy), enabled);
4108 }
4109 #endif
4110
4111 static int ieee80211_set_qos_map(struct wiphy *wiphy,
4112                                  struct net_device *dev,
4113                                  struct cfg80211_qos_map *qos_map)
4114 {
4115         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4116         struct mac80211_qos_map *new_qos_map, *old_qos_map;
4117
4118         if (qos_map) {
4119                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
4120                 if (!new_qos_map)
4121                         return -ENOMEM;
4122                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
4123         } else {
4124                 /* A NULL qos_map was passed to disable QoS mapping */
4125                 new_qos_map = NULL;
4126         }
4127
4128         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
4129         rcu_assign_pointer(sdata->qos_map, new_qos_map);
4130         if (old_qos_map)
4131                 kfree_rcu(old_qos_map, rcu_head);
4132
4133         return 0;
4134 }
4135
4136 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
4137                                       struct net_device *dev,
4138                                       unsigned int link_id,
4139                                       struct cfg80211_chan_def *chandef)
4140 {
4141         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4142         struct ieee80211_link_data *link;
4143         int ret;
4144         u32 changed = 0;
4145
4146         link = sdata_dereference(sdata->link[link_id], sdata);
4147
4148         ret = ieee80211_link_change_bandwidth(link, chandef, &changed);
4149         if (ret == 0)
4150                 ieee80211_link_info_change_notify(sdata, link, changed);
4151
4152         return ret;
4153 }
4154
4155 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4156                                u8 tsid, const u8 *peer, u8 up,
4157                                u16 admitted_time)
4158 {
4159         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4160         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4161         int ac = ieee802_1d_to_ac[up];
4162
4163         if (sdata->vif.type != NL80211_IFTYPE_STATION)
4164                 return -EOPNOTSUPP;
4165
4166         if (!(sdata->wmm_acm & BIT(up)))
4167                 return -EINVAL;
4168
4169         if (ifmgd->tx_tspec[ac].admitted_time)
4170                 return -EBUSY;
4171
4172         if (admitted_time) {
4173                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4174                 ifmgd->tx_tspec[ac].tsid = tsid;
4175                 ifmgd->tx_tspec[ac].up = up;
4176         }
4177
4178         return 0;
4179 }
4180
4181 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4182                                u8 tsid, const u8 *peer)
4183 {
4184         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4185         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4186         struct ieee80211_local *local = wiphy_priv(wiphy);
4187         int ac;
4188
4189         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4190                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4191
4192                 /* skip unused entries */
4193                 if (!tx_tspec->admitted_time)
4194                         continue;
4195
4196                 if (tx_tspec->tsid != tsid)
4197                         continue;
4198
4199                 /* due to this new packets will be reassigned to non-ACM ACs */
4200                 tx_tspec->up = -1;
4201
4202                 /* Make sure that all packets have been sent to avoid to
4203                  * restore the QoS params on packets that are still on the
4204                  * queues.
4205                  */
4206                 synchronize_net();
4207                 ieee80211_flush_queues(local, sdata, false);
4208
4209                 /* restore the normal QoS parameters
4210                  * (unconditionally to avoid races)
4211                  */
4212                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4213                 tx_tspec->downgraded = false;
4214                 ieee80211_sta_handle_tspec_ac_params(sdata);
4215
4216                 /* finally clear all the data */
4217                 memset(tx_tspec, 0, sizeof(*tx_tspec));
4218
4219                 return 0;
4220         }
4221
4222         return -ENOENT;
4223 }
4224
4225 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4226                                    u8 inst_id,
4227                                    enum nl80211_nan_func_term_reason reason,
4228                                    gfp_t gfp)
4229 {
4230         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4231         struct cfg80211_nan_func *func;
4232         u64 cookie;
4233
4234         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4235                 return;
4236
4237         spin_lock_bh(&sdata->u.nan.func_lock);
4238
4239         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
4240         if (WARN_ON(!func)) {
4241                 spin_unlock_bh(&sdata->u.nan.func_lock);
4242                 return;
4243         }
4244
4245         cookie = func->cookie;
4246         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
4247
4248         spin_unlock_bh(&sdata->u.nan.func_lock);
4249
4250         cfg80211_free_nan_func(func);
4251
4252         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
4253                                      reason, cookie, gfp);
4254 }
4255 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4256
4257 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4258                               struct cfg80211_nan_match_params *match,
4259                               gfp_t gfp)
4260 {
4261         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4262         struct cfg80211_nan_func *func;
4263
4264         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4265                 return;
4266
4267         spin_lock_bh(&sdata->u.nan.func_lock);
4268
4269         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
4270         if (WARN_ON(!func)) {
4271                 spin_unlock_bh(&sdata->u.nan.func_lock);
4272                 return;
4273         }
4274         match->cookie = func->cookie;
4275
4276         spin_unlock_bh(&sdata->u.nan.func_lock);
4277
4278         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
4279 }
4280 EXPORT_SYMBOL(ieee80211_nan_func_match);
4281
4282 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4283                                               struct net_device *dev,
4284                                               const bool enabled)
4285 {
4286         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4287
4288         sdata->u.ap.multicast_to_unicast = enabled;
4289
4290         return 0;
4291 }
4292
4293 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4294                               struct txq_info *txqi)
4295 {
4296         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4297                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4298                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4299         }
4300
4301         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4302                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4303                 txqstats->backlog_packets = txqi->tin.backlog_packets;
4304         }
4305
4306         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4307                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4308                 txqstats->flows = txqi->tin.flows;
4309         }
4310
4311         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4312                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4313                 txqstats->drops = txqi->cstats.drop_count;
4314         }
4315
4316         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4317                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4318                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4319         }
4320
4321         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4322                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4323                 txqstats->overlimit = txqi->tin.overlimit;
4324         }
4325
4326         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4327                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4328                 txqstats->collisions = txqi->tin.collisions;
4329         }
4330
4331         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4332                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4333                 txqstats->tx_bytes = txqi->tin.tx_bytes;
4334         }
4335
4336         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4337                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4338                 txqstats->tx_packets = txqi->tin.tx_packets;
4339         }
4340 }
4341
4342 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4343                                    struct wireless_dev *wdev,
4344                                    struct cfg80211_txq_stats *txqstats)
4345 {
4346         struct ieee80211_local *local = wiphy_priv(wiphy);
4347         struct ieee80211_sub_if_data *sdata;
4348         int ret = 0;
4349
4350         spin_lock_bh(&local->fq.lock);
4351         rcu_read_lock();
4352
4353         if (wdev) {
4354                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4355                 if (!sdata->vif.txq) {
4356                         ret = 1;
4357                         goto out;
4358                 }
4359                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4360         } else {
4361                 /* phy stats */
4362                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4363                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4364                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4365                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4366                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
4367                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4368                 txqstats->backlog_packets = local->fq.backlog;
4369                 txqstats->backlog_bytes = local->fq.memory_usage;
4370                 txqstats->overlimit = local->fq.overlimit;
4371                 txqstats->overmemory = local->fq.overmemory;
4372                 txqstats->collisions = local->fq.collisions;
4373                 txqstats->max_flows = local->fq.flows_cnt;
4374         }
4375
4376 out:
4377         rcu_read_unlock();
4378         spin_unlock_bh(&local->fq.lock);
4379
4380         return ret;
4381 }
4382
4383 static int
4384 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4385                                   struct net_device *dev,
4386                                   struct cfg80211_ftm_responder_stats *ftm_stats)
4387 {
4388         struct ieee80211_local *local = wiphy_priv(wiphy);
4389         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4390
4391         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4392 }
4393
4394 static int
4395 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4396                      struct cfg80211_pmsr_request *request)
4397 {
4398         struct ieee80211_local *local = wiphy_priv(wiphy);
4399         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4400
4401         return drv_start_pmsr(local, sdata, request);
4402 }
4403
4404 static void
4405 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4406                      struct cfg80211_pmsr_request *request)
4407 {
4408         struct ieee80211_local *local = wiphy_priv(wiphy);
4409         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4410
4411         return drv_abort_pmsr(local, sdata, request);
4412 }
4413
4414 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4415                                     struct net_device *dev,
4416                                     struct cfg80211_tid_config *tid_conf)
4417 {
4418         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4419         struct sta_info *sta;
4420         int ret;
4421
4422         if (!sdata->local->ops->set_tid_config)
4423                 return -EOPNOTSUPP;
4424
4425         if (!tid_conf->peer)
4426                 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4427
4428         mutex_lock(&sdata->local->sta_mtx);
4429         sta = sta_info_get_bss(sdata, tid_conf->peer);
4430         if (!sta) {
4431                 mutex_unlock(&sdata->local->sta_mtx);
4432                 return -ENOENT;
4433         }
4434
4435         ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4436         mutex_unlock(&sdata->local->sta_mtx);
4437
4438         return ret;
4439 }
4440
4441 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4442                                       struct net_device *dev,
4443                                       const u8 *peer, u8 tids)
4444 {
4445         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4446         struct sta_info *sta;
4447         int ret;
4448
4449         if (!sdata->local->ops->reset_tid_config)
4450                 return -EOPNOTSUPP;
4451
4452         if (!peer)
4453                 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4454
4455         mutex_lock(&sdata->local->sta_mtx);
4456         sta = sta_info_get_bss(sdata, peer);
4457         if (!sta) {
4458                 mutex_unlock(&sdata->local->sta_mtx);
4459                 return -ENOENT;
4460         }
4461
4462         ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4463         mutex_unlock(&sdata->local->sta_mtx);
4464
4465         return ret;
4466 }
4467
4468 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4469                                    struct cfg80211_sar_specs *sar)
4470 {
4471         struct ieee80211_local *local = wiphy_priv(wiphy);
4472
4473         if (!local->ops->set_sar_specs)
4474                 return -EOPNOTSUPP;
4475
4476         return local->ops->set_sar_specs(&local->hw, sar);
4477 }
4478
4479 static int
4480 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4481                                         u32 *changed)
4482 {
4483         switch (sdata->vif.type) {
4484         case NL80211_IFTYPE_AP: {
4485                 int ret;
4486
4487                 if (!sdata->deflink.u.ap.next_beacon)
4488                         return -EINVAL;
4489
4490                 ret = ieee80211_assign_beacon(sdata, &sdata->deflink,
4491                                               sdata->deflink.u.ap.next_beacon,
4492                                               NULL, NULL);
4493                 ieee80211_free_next_beacon(&sdata->deflink);
4494
4495                 if (ret < 0)
4496                         return ret;
4497
4498                 *changed |= ret;
4499                 break;
4500         }
4501         default:
4502                 WARN_ON_ONCE(1);
4503                 return -EINVAL;
4504         }
4505
4506         return 0;
4507 }
4508
4509 static int
4510 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4511                                   struct cfg80211_color_change_settings *params,
4512                                   u32 *changed)
4513 {
4514         struct ieee80211_color_change_settings color_change = {};
4515         int err;
4516
4517         switch (sdata->vif.type) {
4518         case NL80211_IFTYPE_AP:
4519                 sdata->deflink.u.ap.next_beacon =
4520                         cfg80211_beacon_dup(&params->beacon_next);
4521                 if (!sdata->deflink.u.ap.next_beacon)
4522                         return -ENOMEM;
4523
4524                 if (params->count <= 1)
4525                         break;
4526
4527                 color_change.counter_offset_beacon =
4528                         params->counter_offset_beacon;
4529                 color_change.counter_offset_presp =
4530                         params->counter_offset_presp;
4531                 color_change.count = params->count;
4532
4533                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
4534                                               &params->beacon_color_change,
4535                                               NULL, &color_change);
4536                 if (err < 0) {
4537                         ieee80211_free_next_beacon(&sdata->deflink);
4538                         return err;
4539                 }
4540                 *changed |= err;
4541                 break;
4542         default:
4543                 return -EOPNOTSUPP;
4544         }
4545
4546         return 0;
4547 }
4548
4549 static void
4550 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
4551                                          u8 color, int enable, u32 changed)
4552 {
4553         sdata->vif.bss_conf.he_bss_color.color = color;
4554         sdata->vif.bss_conf.he_bss_color.enabled = enable;
4555         changed |= BSS_CHANGED_HE_BSS_COLOR;
4556
4557         ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
4558
4559         if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
4560                 struct ieee80211_sub_if_data *child;
4561
4562                 mutex_lock(&sdata->local->iflist_mtx);
4563                 list_for_each_entry(child, &sdata->local->interfaces, list) {
4564                         if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
4565                                 child->vif.bss_conf.he_bss_color.color = color;
4566                                 child->vif.bss_conf.he_bss_color.enabled = enable;
4567                                 ieee80211_link_info_change_notify(child,
4568                                                                   &child->deflink,
4569                                                                   BSS_CHANGED_HE_BSS_COLOR);
4570                         }
4571                 }
4572                 mutex_unlock(&sdata->local->iflist_mtx);
4573         }
4574 }
4575
4576 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
4577 {
4578         struct ieee80211_local *local = sdata->local;
4579         u32 changed = 0;
4580         int err;
4581
4582         sdata_assert_lock(sdata);
4583         lockdep_assert_held(&local->mtx);
4584
4585         sdata->vif.bss_conf.color_change_active = false;
4586
4587         err = ieee80211_set_after_color_change_beacon(sdata, &changed);
4588         if (err) {
4589                 cfg80211_color_change_aborted_notify(sdata->dev);
4590                 return err;
4591         }
4592
4593         ieee80211_color_change_bss_config_notify(sdata,
4594                                                  sdata->vif.bss_conf.color_change_color,
4595                                                  1, changed);
4596         cfg80211_color_change_notify(sdata->dev);
4597
4598         return 0;
4599 }
4600
4601 void ieee80211_color_change_finalize_work(struct work_struct *work)
4602 {
4603         struct ieee80211_sub_if_data *sdata =
4604                 container_of(work, struct ieee80211_sub_if_data,
4605                              deflink.color_change_finalize_work);
4606         struct ieee80211_local *local = sdata->local;
4607
4608         sdata_lock(sdata);
4609         mutex_lock(&local->mtx);
4610
4611         /* AP might have been stopped while waiting for the lock. */
4612         if (!sdata->vif.bss_conf.color_change_active)
4613                 goto unlock;
4614
4615         if (!ieee80211_sdata_running(sdata))
4616                 goto unlock;
4617
4618         ieee80211_color_change_finalize(sdata);
4619
4620 unlock:
4621         mutex_unlock(&local->mtx);
4622         sdata_unlock(sdata);
4623 }
4624
4625 void ieee80211_color_change_finish(struct ieee80211_vif *vif)
4626 {
4627         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4628
4629         ieee80211_queue_work(&sdata->local->hw,
4630                              &sdata->deflink.color_change_finalize_work);
4631 }
4632 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4633
4634 void
4635 ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4636                                        u64 color_bitmap, gfp_t gfp)
4637 {
4638         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4639
4640         if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active)
4641                 return;
4642
4643         cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap, gfp);
4644 }
4645 EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify);
4646
4647 static int
4648 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4649                        struct cfg80211_color_change_settings *params)
4650 {
4651         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4652         struct ieee80211_local *local = sdata->local;
4653         u32 changed = 0;
4654         int err;
4655
4656         sdata_assert_lock(sdata);
4657
4658         if (sdata->vif.bss_conf.nontransmitted)
4659                 return -EINVAL;
4660
4661         mutex_lock(&local->mtx);
4662
4663         /* don't allow another color change if one is already active or if csa
4664          * is active
4665          */
4666         if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) {
4667                 err = -EBUSY;
4668                 goto out;
4669         }
4670
4671         err = ieee80211_set_color_change_beacon(sdata, params, &changed);
4672         if (err)
4673                 goto out;
4674
4675         sdata->vif.bss_conf.color_change_active = true;
4676         sdata->vif.bss_conf.color_change_color = params->color;
4677
4678         cfg80211_color_change_started_notify(sdata->dev, params->count);
4679
4680         if (changed)
4681                 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed);
4682         else
4683                 /* if the beacon didn't change, we can finalize immediately */
4684                 ieee80211_color_change_finalize(sdata);
4685
4686 out:
4687         mutex_unlock(&local->mtx);
4688
4689         return err;
4690 }
4691
4692 static int
4693 ieee80211_set_radar_background(struct wiphy *wiphy,
4694                                struct cfg80211_chan_def *chandef)
4695 {
4696         struct ieee80211_local *local = wiphy_priv(wiphy);
4697
4698         if (!local->ops->set_radar_background)
4699                 return -EOPNOTSUPP;
4700
4701         return local->ops->set_radar_background(&local->hw, chandef);
4702 }
4703
4704 static int ieee80211_add_intf_link(struct wiphy *wiphy,
4705                                    struct wireless_dev *wdev,
4706                                    unsigned int link_id)
4707 {
4708         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4709
4710         if (wdev->use_4addr)
4711                 return -EOPNOTSUPP;
4712
4713         return ieee80211_vif_set_links(sdata, wdev->valid_links);
4714 }
4715
4716 static void ieee80211_del_intf_link(struct wiphy *wiphy,
4717                                     struct wireless_dev *wdev,
4718                                     unsigned int link_id)
4719 {
4720         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4721
4722         ieee80211_vif_set_links(sdata, wdev->valid_links);
4723 }
4724
4725 static int sta_add_link_station(struct ieee80211_local *local,
4726                                 struct ieee80211_sub_if_data *sdata,
4727                                 struct link_station_parameters *params)
4728 {
4729         struct sta_info *sta;
4730         int ret;
4731
4732         sta = sta_info_get_bss(sdata, params->mld_mac);
4733         if (!sta)
4734                 return -ENOENT;
4735
4736         if (!sta->sta.valid_links)
4737                 return -EINVAL;
4738
4739         if (sta->sta.valid_links & BIT(params->link_id))
4740                 return -EALREADY;
4741
4742         ret = ieee80211_sta_allocate_link(sta, params->link_id);
4743         if (ret)
4744                 return ret;
4745
4746         ret = sta_link_apply_parameters(local, sta, true, params);
4747         if (ret) {
4748                 ieee80211_sta_free_link(sta, params->link_id);
4749                 return ret;
4750         }
4751
4752         /* ieee80211_sta_activate_link frees the link upon failure */
4753         return ieee80211_sta_activate_link(sta, params->link_id);
4754 }
4755
4756 static int
4757 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
4758                            struct link_station_parameters *params)
4759 {
4760         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4761         struct ieee80211_local *local = wiphy_priv(wiphy);
4762         int ret;
4763
4764         mutex_lock(&sdata->local->sta_mtx);
4765         ret = sta_add_link_station(local, sdata, params);
4766         mutex_unlock(&sdata->local->sta_mtx);
4767
4768         return ret;
4769 }
4770
4771 static int sta_mod_link_station(struct ieee80211_local *local,
4772                                 struct ieee80211_sub_if_data *sdata,
4773                                 struct link_station_parameters *params)
4774 {
4775         struct sta_info *sta;
4776
4777         sta = sta_info_get_bss(sdata, params->mld_mac);
4778         if (!sta)
4779                 return -ENOENT;
4780
4781         if (!(sta->sta.valid_links & BIT(params->link_id)))
4782                 return -EINVAL;
4783
4784         return sta_link_apply_parameters(local, sta, false, params);
4785 }
4786
4787 static int
4788 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
4789                            struct link_station_parameters *params)
4790 {
4791         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4792         struct ieee80211_local *local = wiphy_priv(wiphy);
4793         int ret;
4794
4795         mutex_lock(&sdata->local->sta_mtx);
4796         ret = sta_mod_link_station(local, sdata, params);
4797         mutex_unlock(&sdata->local->sta_mtx);
4798
4799         return ret;
4800 }
4801
4802 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata,
4803                                 struct link_station_del_parameters *params)
4804 {
4805         struct sta_info *sta;
4806
4807         sta = sta_info_get_bss(sdata, params->mld_mac);
4808         if (!sta)
4809                 return -ENOENT;
4810
4811         if (!(sta->sta.valid_links & BIT(params->link_id)))
4812                 return -EINVAL;
4813
4814         /* must not create a STA without links */
4815         if (sta->sta.valid_links == BIT(params->link_id))
4816                 return -EINVAL;
4817
4818         ieee80211_sta_remove_link(sta, params->link_id);
4819
4820         return 0;
4821 }
4822
4823 static int
4824 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
4825                            struct link_station_del_parameters *params)
4826 {
4827         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4828         int ret;
4829
4830         mutex_lock(&sdata->local->sta_mtx);
4831         ret = sta_del_link_station(sdata, params);
4832         mutex_unlock(&sdata->local->sta_mtx);
4833
4834         return ret;
4835 }
4836
4837 const struct cfg80211_ops mac80211_config_ops = {
4838         .add_virtual_intf = ieee80211_add_iface,
4839         .del_virtual_intf = ieee80211_del_iface,
4840         .change_virtual_intf = ieee80211_change_iface,
4841         .start_p2p_device = ieee80211_start_p2p_device,
4842         .stop_p2p_device = ieee80211_stop_p2p_device,
4843         .add_key = ieee80211_add_key,
4844         .del_key = ieee80211_del_key,
4845         .get_key = ieee80211_get_key,
4846         .set_default_key = ieee80211_config_default_key,
4847         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4848         .set_default_beacon_key = ieee80211_config_default_beacon_key,
4849         .start_ap = ieee80211_start_ap,
4850         .change_beacon = ieee80211_change_beacon,
4851         .stop_ap = ieee80211_stop_ap,
4852         .add_station = ieee80211_add_station,
4853         .del_station = ieee80211_del_station,
4854         .change_station = ieee80211_change_station,
4855         .get_station = ieee80211_get_station,
4856         .dump_station = ieee80211_dump_station,
4857         .dump_survey = ieee80211_dump_survey,
4858 #ifdef CONFIG_MAC80211_MESH
4859         .add_mpath = ieee80211_add_mpath,
4860         .del_mpath = ieee80211_del_mpath,
4861         .change_mpath = ieee80211_change_mpath,
4862         .get_mpath = ieee80211_get_mpath,
4863         .dump_mpath = ieee80211_dump_mpath,
4864         .get_mpp = ieee80211_get_mpp,
4865         .dump_mpp = ieee80211_dump_mpp,
4866         .update_mesh_config = ieee80211_update_mesh_config,
4867         .get_mesh_config = ieee80211_get_mesh_config,
4868         .join_mesh = ieee80211_join_mesh,
4869         .leave_mesh = ieee80211_leave_mesh,
4870 #endif
4871         .join_ocb = ieee80211_join_ocb,
4872         .leave_ocb = ieee80211_leave_ocb,
4873         .change_bss = ieee80211_change_bss,
4874         .set_txq_params = ieee80211_set_txq_params,
4875         .set_monitor_channel = ieee80211_set_monitor_channel,
4876         .suspend = ieee80211_suspend,
4877         .resume = ieee80211_resume,
4878         .scan = ieee80211_scan,
4879         .abort_scan = ieee80211_abort_scan,
4880         .sched_scan_start = ieee80211_sched_scan_start,
4881         .sched_scan_stop = ieee80211_sched_scan_stop,
4882         .auth = ieee80211_auth,
4883         .assoc = ieee80211_assoc,
4884         .deauth = ieee80211_deauth,
4885         .disassoc = ieee80211_disassoc,
4886         .join_ibss = ieee80211_join_ibss,
4887         .leave_ibss = ieee80211_leave_ibss,
4888         .set_mcast_rate = ieee80211_set_mcast_rate,
4889         .set_wiphy_params = ieee80211_set_wiphy_params,
4890         .set_tx_power = ieee80211_set_tx_power,
4891         .get_tx_power = ieee80211_get_tx_power,
4892         .rfkill_poll = ieee80211_rfkill_poll,
4893         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4894         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4895         .set_power_mgmt = ieee80211_set_power_mgmt,
4896         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4897         .remain_on_channel = ieee80211_remain_on_channel,
4898         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4899         .mgmt_tx = ieee80211_mgmt_tx,
4900         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4901         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4902         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4903         .update_mgmt_frame_registrations =
4904                 ieee80211_update_mgmt_frame_registrations,
4905         .set_antenna = ieee80211_set_antenna,
4906         .get_antenna = ieee80211_get_antenna,
4907         .set_rekey_data = ieee80211_set_rekey_data,
4908         .tdls_oper = ieee80211_tdls_oper,
4909         .tdls_mgmt = ieee80211_tdls_mgmt,
4910         .tdls_channel_switch = ieee80211_tdls_channel_switch,
4911         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4912         .probe_client = ieee80211_probe_client,
4913         .set_noack_map = ieee80211_set_noack_map,
4914 #ifdef CONFIG_PM
4915         .set_wakeup = ieee80211_set_wakeup,
4916 #endif
4917         .get_channel = ieee80211_cfg_get_channel,
4918         .start_radar_detection = ieee80211_start_radar_detection,
4919         .end_cac = ieee80211_end_cac,
4920         .channel_switch = ieee80211_channel_switch,
4921         .set_qos_map = ieee80211_set_qos_map,
4922         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4923         .add_tx_ts = ieee80211_add_tx_ts,
4924         .del_tx_ts = ieee80211_del_tx_ts,
4925         .start_nan = ieee80211_start_nan,
4926         .stop_nan = ieee80211_stop_nan,
4927         .nan_change_conf = ieee80211_nan_change_conf,
4928         .add_nan_func = ieee80211_add_nan_func,
4929         .del_nan_func = ieee80211_del_nan_func,
4930         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4931         .tx_control_port = ieee80211_tx_control_port,
4932         .get_txq_stats = ieee80211_get_txq_stats,
4933         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4934         .start_pmsr = ieee80211_start_pmsr,
4935         .abort_pmsr = ieee80211_abort_pmsr,
4936         .probe_mesh_link = ieee80211_probe_mesh_link,
4937         .set_tid_config = ieee80211_set_tid_config,
4938         .reset_tid_config = ieee80211_reset_tid_config,
4939         .set_sar_specs = ieee80211_set_sar_specs,
4940         .color_change = ieee80211_color_change,
4941         .set_radar_background = ieee80211_set_radar_background,
4942         .add_intf_link = ieee80211_add_intf_link,
4943         .del_intf_link = ieee80211_del_intf_link,
4944         .add_link_station = ieee80211_add_link_station,
4945         .mod_link_station = ieee80211_mod_link_station,
4946         .del_link_station = ieee80211_del_link_station,
4947 };