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 && ieee80211_vif_is_mld(&sdata->vif))
  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         lockdep_assert_wiphy(local->hw.wiphy);
 218
 219         ret = ieee80211_if_change_type(sdata, type);
 220         if (ret)
 221                 return ret;
 222
 223         if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
 224                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
 225                 ieee80211_check_fast_rx_iface(sdata);
 226         } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
 227                 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 228
 229                 if (params->use_4addr == ifmgd->use_4addr)
 230                         return 0;
 231
 232                 /* FIXME: no support for 4-addr MLO yet */
 233                 if (ieee80211_vif_is_mld(&sdata->vif))
 234                         return -EOPNOTSUPP;
 235
 236                 sdata->u.mgd.use_4addr = params->use_4addr;
 237                 if (!ifmgd->associated)
 238                         return 0;
 239
 240                 sta = sta_info_get(sdata, sdata->deflink.u.mgd.bssid);
 241                 if (sta)
 242                         drv_sta_set_4addr(local, sdata, &sta->sta,
 243                                           params->use_4addr);
 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         lockdep_assert_wiphy(sdata->local->hw.wiphy);
 265
 266         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 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         lockdep_assert_wiphy(sdata->local->hw.wiphy);
 287
 288         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 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         key = wiphy_dereference(local->hw.wiphy, sta->ptk[key_idx]);
 456
 457         if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
 458                 ret = ieee80211_set_tx_key(key);
 459
 460         return ret;
 461 }
 462
 463 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 464                              int link_id, u8 key_idx, bool pairwise,
 465                              const u8 *mac_addr, struct key_params *params)
 466 {
 467         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 468         struct ieee80211_link_data *link =
 469                 ieee80211_link_or_deflink(sdata, link_id, false);
 470         struct ieee80211_local *local = sdata->local;
 471         struct sta_info *sta = NULL;
 472         struct ieee80211_key *key;
 473         int err;
 474
 475         lockdep_assert_wiphy(local->hw.wiphy);
 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         if (mac_addr) {
 514                 sta = sta_info_get_bss(sdata, mac_addr);
 515                 /*
 516                  * The ASSOC test makes sure the driver is ready to
 517                  * receive the key. When wpa_supplicant has roamed
 518                  * using FT, it attempts to set the key before
 519                  * association has completed, this rejects that attempt
 520                  * so it will set the key again after association.
 521                  *
 522                  * TODO: accept the key if we have a station entry and
 523                  *       add it to the device after the station.
 524                  */
 525                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 526                         ieee80211_key_free_unused(key);
 527                         return -ENOENT;
 528                 }
 529         }
 530
 531         switch (sdata->vif.type) {
 532         case NL80211_IFTYPE_STATION:
 533                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 534                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 535                 break;
 536         case NL80211_IFTYPE_AP:
 537         case NL80211_IFTYPE_AP_VLAN:
 538                 /* Keys without a station are used for TX only */
 539                 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
 540                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 541                 break;
 542         case NL80211_IFTYPE_ADHOC:
 543                 /* no MFP (yet) */
 544                 break;
 545         case NL80211_IFTYPE_MESH_POINT:
 546 #ifdef CONFIG_MAC80211_MESH
 547                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 548                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 549                 break;
 550 #endif
 551         case NL80211_IFTYPE_WDS:
 552         case NL80211_IFTYPE_MONITOR:
 553         case NL80211_IFTYPE_P2P_DEVICE:
 554         case NL80211_IFTYPE_NAN:
 555         case NL80211_IFTYPE_UNSPECIFIED:
 556         case NUM_NL80211_IFTYPES:
 557         case NL80211_IFTYPE_P2P_CLIENT:
 558         case NL80211_IFTYPE_P2P_GO:
 559         case NL80211_IFTYPE_OCB:
 560                 /* shouldn't happen */
 561                 WARN_ON_ONCE(1);
 562                 break;
 563         }
 564
 565         err = ieee80211_key_link(key, link, sta);
 566         /* KRACK protection, shouldn't happen but just silently accept key */
 567         if (err == -EALREADY)
 568                 err = 0;
 569
 570         return err;
 571 }
 572
 573 static struct ieee80211_key *
 574 ieee80211_lookup_key(struct ieee80211_sub_if_data *sdata, int link_id,
 575                      u8 key_idx, bool pairwise, const u8 *mac_addr)
 576 {
 577         struct ieee80211_local *local __maybe_unused = sdata->local;
 578         struct ieee80211_link_data *link = &sdata->deflink;
 579         struct ieee80211_key *key;
 580
 581         if (link_id >= 0) {
 582                 link = sdata_dereference(sdata->link[link_id], sdata);
 583                 if (!link)
 584                         return NULL;
 585         }
 586
 587         if (mac_addr) {
 588                 struct sta_info *sta;
 589                 struct link_sta_info *link_sta;
 590
 591                 sta = sta_info_get_bss(sdata, mac_addr);
 592                 if (!sta)
 593                         return NULL;
 594
 595                 if (link_id >= 0) {
 596                         link_sta = rcu_dereference_check(sta->link[link_id],
 597                                                          lockdep_is_held(&local->hw.wiphy->mtx));
 598                         if (!link_sta)
 599                                 return NULL;
 600                 } else {
 601                         link_sta = &sta->deflink;
 602                 }
 603
 604                 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 605                         return wiphy_dereference(local->hw.wiphy,
 606                                                  sta->ptk[key_idx]);
 607
 608                 if (!pairwise &&
 609                     key_idx < NUM_DEFAULT_KEYS +
 610                               NUM_DEFAULT_MGMT_KEYS +
 611                               NUM_DEFAULT_BEACON_KEYS)
 612                         return wiphy_dereference(local->hw.wiphy,
 613                                                  link_sta->gtk[key_idx]);
 614
 615                 return NULL;
 616         }
 617
 618         if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 619                 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
 620
 621         key = wiphy_dereference(local->hw.wiphy, link->gtk[key_idx]);
 622         if (key)
 623                 return key;
 624
 625         /* or maybe it was a WEP key */
 626         if (key_idx < NUM_DEFAULT_KEYS)
 627                 return wiphy_dereference(local->hw.wiphy, sdata->keys[key_idx]);
 628
 629         return NULL;
 630 }
 631
 632 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 633                              int link_id, u8 key_idx, bool pairwise,
 634                              const u8 *mac_addr)
 635 {
 636         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 637         struct ieee80211_local *local = sdata->local;
 638         struct ieee80211_key *key;
 639
 640         lockdep_assert_wiphy(local->hw.wiphy);
 641
 642         key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
 643         if (!key)
 644                 return -ENOENT;
 645
 646         ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
 647
 648         return 0;
 649 }
 650
 651 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 652                              int link_id, u8 key_idx, bool pairwise,
 653                              const u8 *mac_addr, void *cookie,
 654                              void (*callback)(void *cookie,
 655                                               struct key_params *params))
 656 {
 657         struct ieee80211_sub_if_data *sdata;
 658         u8 seq[6] = {0};
 659         struct key_params params;
 660         struct ieee80211_key *key;
 661         u64 pn64;
 662         u32 iv32;
 663         u16 iv16;
 664         int err = -ENOENT;
 665         struct ieee80211_key_seq kseq = {};
 666
 667         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 668
 669         rcu_read_lock();
 670
 671         key = ieee80211_lookup_key(sdata, link_id, key_idx, pairwise, mac_addr);
 672         if (!key)
 673                 goto out;
 674
 675         memset(&params, 0, sizeof(params));
 676
 677         params.cipher = key->conf.cipher;
 678
 679         switch (key->conf.cipher) {
 680         case WLAN_CIPHER_SUITE_TKIP:
 681                 pn64 = atomic64_read(&key->conf.tx_pn);
 682                 iv32 = TKIP_PN_TO_IV32(pn64);
 683                 iv16 = TKIP_PN_TO_IV16(pn64);
 684
 685                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 686                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 687                         drv_get_key_seq(sdata->local, key, &kseq);
 688                         iv32 = kseq.tkip.iv32;
 689                         iv16 = kseq.tkip.iv16;
 690                 }
 691
 692                 seq[0] = iv16 & 0xff;
 693                 seq[1] = (iv16 >> 8) & 0xff;
 694                 seq[2] = iv32 & 0xff;
 695                 seq[3] = (iv32 >> 8) & 0xff;
 696                 seq[4] = (iv32 >> 16) & 0xff;
 697                 seq[5] = (iv32 >> 24) & 0xff;
 698                 params.seq = seq;
 699                 params.seq_len = 6;
 700                 break;
 701         case WLAN_CIPHER_SUITE_CCMP:
 702         case WLAN_CIPHER_SUITE_CCMP_256:
 703         case WLAN_CIPHER_SUITE_AES_CMAC:
 704         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 705                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 706                              offsetof(typeof(kseq), aes_cmac));
 707                 fallthrough;
 708         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 709         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 710                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 711                              offsetof(typeof(kseq), aes_gmac));
 712                 fallthrough;
 713         case WLAN_CIPHER_SUITE_GCMP:
 714         case WLAN_CIPHER_SUITE_GCMP_256:
 715                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 716                              offsetof(typeof(kseq), gcmp));
 717
 718                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 719                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 720                         drv_get_key_seq(sdata->local, key, &kseq);
 721                         memcpy(seq, kseq.ccmp.pn, 6);
 722                 } else {
 723                         pn64 = atomic64_read(&key->conf.tx_pn);
 724                         seq[0] = pn64;
 725                         seq[1] = pn64 >> 8;
 726                         seq[2] = pn64 >> 16;
 727                         seq[3] = pn64 >> 24;
 728                         seq[4] = pn64 >> 32;
 729                         seq[5] = pn64 >> 40;
 730                 }
 731                 params.seq = seq;
 732                 params.seq_len = 6;
 733                 break;
 734         default:
 735                 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
 736                         break;
 737                 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
 738                         break;
 739                 drv_get_key_seq(sdata->local, key, &kseq);
 740                 params.seq = kseq.hw.seq;
 741                 params.seq_len = kseq.hw.seq_len;
 742                 break;
 743         }
 744
 745         params.key = key->conf.key;
 746         params.key_len = key->conf.keylen;
 747
 748         callback(cookie, &params);
 749         err = 0;
 750
 751  out:
 752         rcu_read_unlock();
 753         return err;
 754 }
 755
 756 static int ieee80211_config_default_key(struct wiphy *wiphy,
 757                                         struct net_device *dev,
 758                                         int link_id, u8 key_idx, bool uni,
 759                                         bool multi)
 760 {
 761         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 762         struct ieee80211_link_data *link =
 763                 ieee80211_link_or_deflink(sdata, link_id, false);
 764
 765         if (IS_ERR(link))
 766                 return PTR_ERR(link);
 767
 768         ieee80211_set_default_key(link, key_idx, uni, multi);
 769
 770         return 0;
 771 }
 772
 773 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 774                                              struct net_device *dev,
 775                                              int link_id, u8 key_idx)
 776 {
 777         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 778         struct ieee80211_link_data *link =
 779                 ieee80211_link_or_deflink(sdata, link_id, true);
 780
 781         if (IS_ERR(link))
 782                 return PTR_ERR(link);
 783
 784         ieee80211_set_default_mgmt_key(link, key_idx);
 785
 786         return 0;
 787 }
 788
 789 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
 790                                                struct net_device *dev,
 791                                                int link_id, u8 key_idx)
 792 {
 793         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 794         struct ieee80211_link_data *link =
 795                 ieee80211_link_or_deflink(sdata, link_id, true);
 796
 797         if (IS_ERR(link))
 798                 return PTR_ERR(link);
 799
 800         ieee80211_set_default_beacon_key(link, key_idx);
 801
 802         return 0;
 803 }
 804
 805 void sta_set_rate_info_tx(struct sta_info *sta,
 806                           const struct ieee80211_tx_rate *rate,
 807                           struct rate_info *rinfo)
 808 {
 809         rinfo->flags = 0;
 810         if (rate->flags & IEEE80211_TX_RC_MCS) {
 811                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 812                 rinfo->mcs = rate->idx;
 813         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 814                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 815                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 816                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 817         } else {
 818                 struct ieee80211_supported_band *sband;
 819
 820                 sband = ieee80211_get_sband(sta->sdata);
 821                 WARN_ON_ONCE(sband && !sband->bitrates);
 822                 if (sband && sband->bitrates)
 823                         rinfo->legacy = sband->bitrates[rate->idx].bitrate;
 824         }
 825         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 826                 rinfo->bw = RATE_INFO_BW_40;
 827         else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 828                 rinfo->bw = RATE_INFO_BW_80;
 829         else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 830                 rinfo->bw = RATE_INFO_BW_160;
 831         else
 832                 rinfo->bw = RATE_INFO_BW_20;
 833         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 834                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 835 }
 836
 837 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 838                                   int idx, u8 *mac, struct station_info *sinfo)
 839 {
 840         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 841         struct ieee80211_local *local = sdata->local;
 842         struct sta_info *sta;
 843         int ret = -ENOENT;
 844
 845         lockdep_assert_wiphy(local->hw.wiphy);
 846
 847         sta = sta_info_get_by_idx(sdata, idx);
 848         if (sta) {
 849                 ret = 0;
 850                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 851                 sta_set_sinfo(sta, sinfo, true);
 852         }
 853
 854         return ret;
 855 }
 856
 857 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 858                                  int idx, struct survey_info *survey)
 859 {
 860         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 861
 862         return drv_get_survey(local, idx, survey);
 863 }
 864
 865 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 866                                  const u8 *mac, struct station_info *sinfo)
 867 {
 868         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 869         struct ieee80211_local *local = sdata->local;
 870         struct sta_info *sta;
 871         int ret = -ENOENT;
 872
 873         lockdep_assert_wiphy(local->hw.wiphy);
 874
 875         sta = sta_info_get_bss(sdata, mac);
 876         if (sta) {
 877                 ret = 0;
 878                 sta_set_sinfo(sta, sinfo, true);
 879         }
 880
 881         return ret;
 882 }
 883
 884 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 885                                          struct cfg80211_chan_def *chandef)
 886 {
 887         struct ieee80211_local *local = wiphy_priv(wiphy);
 888         struct ieee80211_sub_if_data *sdata;
 889         int ret = 0;
 890
 891         lockdep_assert_wiphy(local->hw.wiphy);
 892
 893         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 894                 return 0;
 895
 896         if (local->use_chanctx) {
 897                 sdata = wiphy_dereference(local->hw.wiphy,
 898                                           local->monitor_sdata);
 899                 if (sdata) {
 900                         ieee80211_link_release_channel(&sdata->deflink);
 901                         ret = ieee80211_link_use_channel(&sdata->deflink,
 902                                                          chandef,
 903                                                          IEEE80211_CHANCTX_EXCLUSIVE);
 904                 }
 905         } else {
 906                 if (local->open_count == local->monitors) {
 907                         local->_oper_chandef = *chandef;
 908                         ieee80211_hw_config(local, 0);
 909                 }
 910         }
 911
 912         if (ret == 0)
 913                 local->monitor_chandef = *chandef;
 914
 915         return ret;
 916 }
 917
 918 static int
 919 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 920                          const u8 *resp, size_t resp_len,
 921                          const struct ieee80211_csa_settings *csa,
 922                          const struct ieee80211_color_change_settings *cca,
 923                          struct ieee80211_link_data *link)
 924 {
 925         struct probe_resp *new, *old;
 926
 927         if (!resp || !resp_len)
 928                 return 1;
 929
 930         old = sdata_dereference(link->u.ap.probe_resp, sdata);
 931
 932         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 933         if (!new)
 934                 return -ENOMEM;
 935
 936         new->len = resp_len;
 937         memcpy(new->data, resp, resp_len);
 938
 939         if (csa)
 940                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
 941                        csa->n_counter_offsets_presp *
 942                        sizeof(new->cntdwn_counter_offsets[0]));
 943         else if (cca)
 944                 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
 945
 946         rcu_assign_pointer(link->u.ap.probe_resp, new);
 947         if (old)
 948                 kfree_rcu(old, rcu_head);
 949
 950         return 0;
 951 }
 952
 953 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
 954                                         struct cfg80211_fils_discovery *params,
 955                                         struct ieee80211_link_data *link,
 956                                         struct ieee80211_bss_conf *link_conf)
 957 {
 958         struct fils_discovery_data *new, *old = NULL;
 959         struct ieee80211_fils_discovery *fd;
 960
 961         if (!params->update)
 962                 return 0;
 963
 964         fd = &link_conf->fils_discovery;
 965         fd->min_interval = params->min_interval;
 966         fd->max_interval = params->max_interval;
 967
 968         old = sdata_dereference(link->u.ap.fils_discovery, sdata);
 969         if (old)
 970                 kfree_rcu(old, rcu_head);
 971
 972         if (params->tmpl && params->tmpl_len) {
 973                 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 974                 if (!new)
 975                         return -ENOMEM;
 976                 new->len = params->tmpl_len;
 977                 memcpy(new->data, params->tmpl, params->tmpl_len);
 978                 rcu_assign_pointer(link->u.ap.fils_discovery, new);
 979         } else {
 980                 RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
 981         }
 982
 983         return BSS_CHANGED_FILS_DISCOVERY;
 984 }
 985
 986 static int
 987 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
 988                                      struct cfg80211_unsol_bcast_probe_resp *params,
 989                                      struct ieee80211_link_data *link,
 990                                      struct ieee80211_bss_conf *link_conf)
 991 {
 992         struct unsol_bcast_probe_resp_data *new, *old = NULL;
 993
 994         if (!params->update)
 995                 return 0;
 996
 997         link_conf->unsol_bcast_probe_resp_interval = params->interval;
 998
 999         old = sdata_dereference(link->u.ap.unsol_bcast_probe_resp, sdata);
1000         if (old)
1001                 kfree_rcu(old, rcu_head);
1002
1003         if (params->tmpl && params->tmpl_len) {
1004                 new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
1005                 if (!new)
1006                         return -ENOMEM;
1007                 new->len = params->tmpl_len;
1008                 memcpy(new->data, params->tmpl, params->tmpl_len);
1009                 rcu_assign_pointer(link->u.ap.unsol_bcast_probe_resp, new);
1010         } else {
1011                 RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1012         }
1013
1014         return BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1015 }
1016
1017 static int ieee80211_set_ftm_responder_params(
1018                                 struct ieee80211_sub_if_data *sdata,
1019                                 const u8 *lci, size_t lci_len,
1020                                 const u8 *civicloc, size_t civicloc_len,
1021                                 struct ieee80211_bss_conf *link_conf)
1022 {
1023         struct ieee80211_ftm_responder_params *new, *old;
1024         u8 *pos;
1025         int len;
1026
1027         if (!lci_len && !civicloc_len)
1028                 return 0;
1029
1030         old = link_conf->ftmr_params;
1031         len = lci_len + civicloc_len;
1032
1033         new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
1034         if (!new)
1035                 return -ENOMEM;
1036
1037         pos = (u8 *)(new + 1);
1038         if (lci_len) {
1039                 new->lci_len = lci_len;
1040                 new->lci = pos;
1041                 memcpy(pos, lci, lci_len);
1042                 pos += lci_len;
1043         }
1044
1045         if (civicloc_len) {
1046                 new->civicloc_len = civicloc_len;
1047                 new->civicloc = pos;
1048                 memcpy(pos, civicloc, civicloc_len);
1049                 pos += civicloc_len;
1050         }
1051
1052         link_conf->ftmr_params = new;
1053         kfree(old);
1054
1055         return 0;
1056 }
1057
1058 static int
1059 ieee80211_copy_mbssid_beacon(u8 *pos, struct cfg80211_mbssid_elems *dst,
1060                              struct cfg80211_mbssid_elems *src)
1061 {
1062         int i, offset = 0;
1063
1064         for (i = 0; i < src->cnt; i++) {
1065                 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1066                 dst->elem[i].len = src->elem[i].len;
1067                 dst->elem[i].data = pos + offset;
1068                 offset += dst->elem[i].len;
1069         }
1070         dst->cnt = src->cnt;
1071
1072         return offset;
1073 }
1074
1075 static int
1076 ieee80211_copy_rnr_beacon(u8 *pos, struct cfg80211_rnr_elems *dst,
1077                           struct cfg80211_rnr_elems *src)
1078 {
1079         int i, offset = 0;
1080
1081         for (i = 0; i < src->cnt; i++) {
1082                 memcpy(pos + offset, src->elem[i].data, src->elem[i].len);
1083                 dst->elem[i].len = src->elem[i].len;
1084                 dst->elem[i].data = pos + offset;
1085                 offset += dst->elem[i].len;
1086         }
1087         dst->cnt = src->cnt;
1088
1089         return offset;
1090 }
1091
1092 static int
1093 ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
1094                         struct ieee80211_link_data *link,
1095                         struct cfg80211_beacon_data *params,
1096                         const struct ieee80211_csa_settings *csa,
1097                         const struct ieee80211_color_change_settings *cca,
1098                         u64 *changed)
1099 {
1100         struct cfg80211_mbssid_elems *mbssid = NULL;
1101         struct cfg80211_rnr_elems *rnr = NULL;
1102         struct beacon_data *new, *old;
1103         int new_head_len, new_tail_len;
1104         int size, err;
1105         u64 _changed = BSS_CHANGED_BEACON;
1106         struct ieee80211_bss_conf *link_conf = link->conf;
1107
1108         old = sdata_dereference(link->u.ap.beacon, sdata);
1109
1110         /* Need to have a beacon head if we don't have one yet */
1111         if (!params->head && !old)
1112                 return -EINVAL;
1113
1114         /* new or old head? */
1115         if (params->head)
1116                 new_head_len = params->head_len;
1117         else
1118                 new_head_len = old->head_len;
1119
1120         /* new or old tail? */
1121         if (params->tail || !old)
1122                 /* params->tail_len will be zero for !params->tail */
1123                 new_tail_len = params->tail_len;
1124         else
1125                 new_tail_len = old->tail_len;
1126
1127         size = sizeof(*new) + new_head_len + new_tail_len;
1128
1129         /* new or old multiple BSSID elements? */
1130         if (params->mbssid_ies) {
1131                 mbssid = params->mbssid_ies;
1132                 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1133                 if (params->rnr_ies) {
1134                         rnr = params->rnr_ies;
1135                         size += struct_size(new->rnr_ies, elem, rnr->cnt);
1136                 }
1137                 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1138                                                         mbssid->cnt);
1139         } else if (old && old->mbssid_ies) {
1140                 mbssid = old->mbssid_ies;
1141                 size += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1142                 if (old && old->rnr_ies) {
1143                         rnr = old->rnr_ies;
1144                         size += struct_size(new->rnr_ies, elem, rnr->cnt);
1145                 }
1146                 size += ieee80211_get_mbssid_beacon_len(mbssid, rnr,
1147                                                         mbssid->cnt);
1148         }
1149
1150         new = kzalloc(size, GFP_KERNEL);
1151         if (!new)
1152                 return -ENOMEM;
1153
1154         /* start filling the new info now */
1155
1156         /*
1157          * pointers go into the block we allocated,
1158          * memory is | beacon_data | head | tail | mbssid_ies | rnr_ies
1159          */
1160         new->head = ((u8 *) new) + sizeof(*new);
1161         new->tail = new->head + new_head_len;
1162         new->head_len = new_head_len;
1163         new->tail_len = new_tail_len;
1164         /* copy in optional mbssid_ies */
1165         if (mbssid) {
1166                 u8 *pos = new->tail + new->tail_len;
1167
1168                 new->mbssid_ies = (void *)pos;
1169                 pos += struct_size(new->mbssid_ies, elem, mbssid->cnt);
1170                 pos += ieee80211_copy_mbssid_beacon(pos, new->mbssid_ies,
1171                                                     mbssid);
1172                 if (rnr) {
1173                         new->rnr_ies = (void *)pos;
1174                         pos += struct_size(new->rnr_ies, elem, rnr->cnt);
1175                         ieee80211_copy_rnr_beacon(pos, new->rnr_ies, rnr);
1176                 }
1177                 /* update bssid_indicator */
1178                 link_conf->bssid_indicator =
1179                         ilog2(__roundup_pow_of_two(mbssid->cnt + 1));
1180         }
1181
1182         if (csa) {
1183                 new->cntdwn_current_counter = csa->count;
1184                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1185                        csa->n_counter_offsets_beacon *
1186                        sizeof(new->cntdwn_counter_offsets[0]));
1187         } else if (cca) {
1188                 new->cntdwn_current_counter = cca->count;
1189                 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1190         }
1191
1192         /* copy in head */
1193         if (params->head)
1194                 memcpy(new->head, params->head, new_head_len);
1195         else
1196                 memcpy(new->head, old->head, new_head_len);
1197
1198         /* copy in optional tail */
1199         if (params->tail)
1200                 memcpy(new->tail, params->tail, new_tail_len);
1201         else
1202                 if (old)
1203                         memcpy(new->tail, old->tail, new_tail_len);
1204
1205         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1206                                        params->probe_resp_len, csa, cca, link);
1207         if (err < 0) {
1208                 kfree(new);
1209                 return err;
1210         }
1211         if (err == 0)
1212                 _changed |= BSS_CHANGED_AP_PROBE_RESP;
1213
1214         if (params->ftm_responder != -1) {
1215                 link_conf->ftm_responder = params->ftm_responder;
1216                 err = ieee80211_set_ftm_responder_params(sdata,
1217                                                          params->lci,
1218                                                          params->lci_len,
1219                                                          params->civicloc,
1220                                                          params->civicloc_len,
1221                                                          link_conf);
1222
1223                 if (err < 0) {
1224                         kfree(new);
1225                         return err;
1226                 }
1227
1228                 _changed |= BSS_CHANGED_FTM_RESPONDER;
1229         }
1230
1231         rcu_assign_pointer(link->u.ap.beacon, new);
1232         sdata->u.ap.active = true;
1233
1234         if (old)
1235                 kfree_rcu(old, rcu_head);
1236
1237         *changed |= _changed;
1238         return 0;
1239 }
1240
1241 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1242                               struct cfg80211_ap_settings *params)
1243 {
1244         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1245         struct ieee80211_local *local = sdata->local;
1246         struct beacon_data *old;
1247         struct ieee80211_sub_if_data *vlan;
1248         u64 changed = BSS_CHANGED_BEACON_INT |
1249                       BSS_CHANGED_BEACON_ENABLED |
1250                       BSS_CHANGED_BEACON |
1251                       BSS_CHANGED_P2P_PS |
1252                       BSS_CHANGED_TXPOWER |
1253                       BSS_CHANGED_TWT;
1254         int i, err;
1255         int prev_beacon_int;
1256         unsigned int link_id = params->beacon.link_id;
1257         struct ieee80211_link_data *link;
1258         struct ieee80211_bss_conf *link_conf;
1259
1260         lockdep_assert_wiphy(local->hw.wiphy);
1261
1262         link = sdata_dereference(sdata->link[link_id], sdata);
1263         if (!link)
1264                 return -ENOLINK;
1265
1266         link_conf = link->conf;
1267
1268         old = sdata_dereference(link->u.ap.beacon, sdata);
1269         if (old)
1270                 return -EALREADY;
1271
1272         if (params->smps_mode != NL80211_SMPS_OFF)
1273                 return -ENOTSUPP;
1274
1275         link->smps_mode = IEEE80211_SMPS_OFF;
1276
1277         link->needed_rx_chains = sdata->local->rx_chains;
1278
1279         prev_beacon_int = link_conf->beacon_int;
1280         link_conf->beacon_int = params->beacon_interval;
1281
1282         if (params->ht_cap)
1283                 link_conf->ht_ldpc =
1284                         params->ht_cap->cap_info &
1285                                 cpu_to_le16(IEEE80211_HT_CAP_LDPC_CODING);
1286
1287         if (params->vht_cap) {
1288                 link_conf->vht_ldpc =
1289                         params->vht_cap->vht_cap_info &
1290                                 cpu_to_le32(IEEE80211_VHT_CAP_RXLDPC);
1291                 link_conf->vht_su_beamformer =
1292                         params->vht_cap->vht_cap_info &
1293                                 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE);
1294                 link_conf->vht_su_beamformee =
1295                         params->vht_cap->vht_cap_info &
1296                                 cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE);
1297                 link_conf->vht_mu_beamformer =
1298                         params->vht_cap->vht_cap_info &
1299                                 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE);
1300                 link_conf->vht_mu_beamformee =
1301                         params->vht_cap->vht_cap_info &
1302                                 cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE);
1303         }
1304
1305         if (params->he_cap && params->he_oper) {
1306                 link_conf->he_support = true;
1307                 link_conf->htc_trig_based_pkt_ext =
1308                         le32_get_bits(params->he_oper->he_oper_params,
1309                               IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1310                 link_conf->frame_time_rts_th =
1311                         le32_get_bits(params->he_oper->he_oper_params,
1312                               IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1313                 changed |= BSS_CHANGED_HE_OBSS_PD;
1314
1315                 if (params->beacon.he_bss_color.enabled)
1316                         changed |= BSS_CHANGED_HE_BSS_COLOR;
1317         }
1318
1319         if (params->he_cap) {
1320                 link_conf->he_ldpc =
1321                         params->he_cap->phy_cap_info[1] &
1322                                 IEEE80211_HE_PHY_CAP1_LDPC_CODING_IN_PAYLOAD;
1323                 link_conf->he_su_beamformer =
1324                         params->he_cap->phy_cap_info[3] &
1325                                 IEEE80211_HE_PHY_CAP3_SU_BEAMFORMER;
1326                 link_conf->he_su_beamformee =
1327                         params->he_cap->phy_cap_info[4] &
1328                                 IEEE80211_HE_PHY_CAP4_SU_BEAMFORMEE;
1329                 link_conf->he_mu_beamformer =
1330                         params->he_cap->phy_cap_info[4] &
1331                                 IEEE80211_HE_PHY_CAP4_MU_BEAMFORMER;
1332                 link_conf->he_full_ul_mumimo =
1333                         params->he_cap->phy_cap_info[2] &
1334                                 IEEE80211_HE_PHY_CAP2_UL_MU_FULL_MU_MIMO;
1335         }
1336
1337         if (params->eht_cap) {
1338                 if (!link_conf->he_support)
1339                         return -EOPNOTSUPP;
1340
1341                 link_conf->eht_support = true;
1342                 link_conf->eht_puncturing = params->punct_bitmap;
1343                 changed |= BSS_CHANGED_EHT_PUNCTURING;
1344
1345                 link_conf->eht_su_beamformer =
1346                         params->eht_cap->fixed.phy_cap_info[0] &
1347                                 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMER;
1348                 link_conf->eht_su_beamformee =
1349                         params->eht_cap->fixed.phy_cap_info[0] &
1350                                 IEEE80211_EHT_PHY_CAP0_SU_BEAMFORMEE;
1351                 link_conf->eht_mu_beamformer =
1352                         params->eht_cap->fixed.phy_cap_info[7] &
1353                                 (IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_80MHZ |
1354                                  IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_160MHZ |
1355                                  IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ);
1356         } else {
1357                 link_conf->eht_su_beamformer = false;
1358                 link_conf->eht_su_beamformee = false;
1359                 link_conf->eht_mu_beamformer = false;
1360         }
1361
1362         if (sdata->vif.type == NL80211_IFTYPE_AP &&
1363             params->mbssid_config.tx_wdev) {
1364                 err = ieee80211_set_ap_mbssid_options(sdata,
1365                                                       params->mbssid_config,
1366                                                       link_conf);
1367                 if (err)
1368                         return err;
1369         }
1370
1371         err = ieee80211_link_use_channel(link, &params->chandef,
1372                                          IEEE80211_CHANCTX_SHARED);
1373         if (!err)
1374                 ieee80211_link_copy_chanctx_to_vlans(link, false);
1375         if (err) {
1376                 link_conf->beacon_int = prev_beacon_int;
1377                 return err;
1378         }
1379
1380         /*
1381          * Apply control port protocol, this allows us to
1382          * not encrypt dynamic WEP control frames.
1383          */
1384         sdata->control_port_protocol = params->crypto.control_port_ethertype;
1385         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1386         sdata->control_port_over_nl80211 =
1387                                 params->crypto.control_port_over_nl80211;
1388         sdata->control_port_no_preauth =
1389                                 params->crypto.control_port_no_preauth;
1390
1391         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1392                 vlan->control_port_protocol =
1393                         params->crypto.control_port_ethertype;
1394                 vlan->control_port_no_encrypt =
1395                         params->crypto.control_port_no_encrypt;
1396                 vlan->control_port_over_nl80211 =
1397                         params->crypto.control_port_over_nl80211;
1398                 vlan->control_port_no_preauth =
1399                         params->crypto.control_port_no_preauth;
1400         }
1401
1402         link_conf->dtim_period = params->dtim_period;
1403         link_conf->enable_beacon = true;
1404         link_conf->allow_p2p_go_ps = sdata->vif.p2p;
1405         link_conf->twt_responder = params->twt_responder;
1406         link_conf->he_obss_pd = params->he_obss_pd;
1407         link_conf->he_bss_color = params->beacon.he_bss_color;
1408         sdata->vif.cfg.s1g = params->chandef.chan->band ==
1409                                   NL80211_BAND_S1GHZ;
1410
1411         sdata->vif.cfg.ssid_len = params->ssid_len;
1412         if (params->ssid_len)
1413                 memcpy(sdata->vif.cfg.ssid, params->ssid,
1414                        params->ssid_len);
1415         link_conf->hidden_ssid =
1416                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1417
1418         memset(&link_conf->p2p_noa_attr, 0,
1419                sizeof(link_conf->p2p_noa_attr));
1420         link_conf->p2p_noa_attr.oppps_ctwindow =
1421                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1422         if (params->p2p_opp_ps)
1423                 link_conf->p2p_noa_attr.oppps_ctwindow |=
1424                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1425
1426         sdata->beacon_rate_set = false;
1427         if (wiphy_ext_feature_isset(local->hw.wiphy,
1428                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1429                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1430                         sdata->beacon_rateidx_mask[i] =
1431                                 params->beacon_rate.control[i].legacy;
1432                         if (sdata->beacon_rateidx_mask[i])
1433                                 sdata->beacon_rate_set = true;
1434                 }
1435         }
1436
1437         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1438                 link_conf->beacon_tx_rate = params->beacon_rate;
1439
1440         err = ieee80211_assign_beacon(sdata, link, &params->beacon, NULL, NULL,
1441                                       &changed);
1442         if (err < 0)
1443                 goto error;
1444
1445         err = ieee80211_set_fils_discovery(sdata, &params->fils_discovery,
1446                                            link, link_conf);
1447         if (err < 0)
1448                 goto error;
1449         changed |= err;
1450
1451         err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1452                                                    &params->unsol_bcast_probe_resp,
1453                                                    link, link_conf);
1454         if (err < 0)
1455                 goto error;
1456         changed |= err;
1457
1458         err = drv_start_ap(sdata->local, sdata, link_conf);
1459         if (err) {
1460                 old = sdata_dereference(link->u.ap.beacon, sdata);
1461
1462                 if (old)
1463                         kfree_rcu(old, rcu_head);
1464                 RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1465                 sdata->u.ap.active = false;
1466                 goto error;
1467         }
1468
1469         ieee80211_recalc_dtim(local, sdata);
1470         ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_SSID);
1471         ieee80211_link_info_change_notify(sdata, link, changed);
1472
1473         netif_carrier_on(dev);
1474         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1475                 netif_carrier_on(vlan->dev);
1476
1477         return 0;
1478
1479 error:
1480         ieee80211_link_release_channel(link);
1481
1482         return err;
1483 }
1484
1485 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1486                                    struct cfg80211_ap_update *params)
1487
1488 {
1489         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1490         struct ieee80211_link_data *link;
1491         struct cfg80211_beacon_data *beacon = &params->beacon;
1492         struct beacon_data *old;
1493         int err;
1494         struct ieee80211_bss_conf *link_conf;
1495         u64 changed = 0;
1496
1497         lockdep_assert_wiphy(wiphy);
1498
1499         link = sdata_dereference(sdata->link[beacon->link_id], sdata);
1500         if (!link)
1501                 return -ENOLINK;
1502
1503         link_conf = link->conf;
1504
1505         /* don't allow changing the beacon while a countdown is in place - offset
1506          * of channel switch counter may change
1507          */
1508         if (link_conf->csa_active || link_conf->color_change_active)
1509                 return -EBUSY;
1510
1511         old = sdata_dereference(link->u.ap.beacon, sdata);
1512         if (!old)
1513                 return -ENOENT;
1514
1515         err = ieee80211_assign_beacon(sdata, link, beacon, NULL, NULL,
1516                                       &changed);
1517         if (err < 0)
1518                 return err;
1519
1520         err = ieee80211_set_fils_discovery(sdata, &params->fils_discovery,
1521                                            link, link_conf);
1522         if (err < 0)
1523                 return err;
1524         changed |= err;
1525
1526         err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1527                                                    &params->unsol_bcast_probe_resp,
1528                                                    link, link_conf);
1529         if (err < 0)
1530                 return err;
1531         changed |= err;
1532
1533         if (beacon->he_bss_color_valid &&
1534             beacon->he_bss_color.enabled != link_conf->he_bss_color.enabled) {
1535                 link_conf->he_bss_color.enabled = beacon->he_bss_color.enabled;
1536                 changed |= BSS_CHANGED_HE_BSS_COLOR;
1537         }
1538
1539         ieee80211_link_info_change_notify(sdata, link, changed);
1540         return 0;
1541 }
1542
1543 static void ieee80211_free_next_beacon(struct ieee80211_link_data *link)
1544 {
1545         if (!link->u.ap.next_beacon)
1546                 return;
1547
1548         kfree(link->u.ap.next_beacon->mbssid_ies);
1549         kfree(link->u.ap.next_beacon->rnr_ies);
1550         kfree(link->u.ap.next_beacon);
1551         link->u.ap.next_beacon = NULL;
1552 }
1553
1554 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev,
1555                              unsigned int link_id)
1556 {
1557         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1558         struct ieee80211_sub_if_data *vlan;
1559         struct ieee80211_local *local = sdata->local;
1560         struct beacon_data *old_beacon;
1561         struct probe_resp *old_probe_resp;
1562         struct fils_discovery_data *old_fils_discovery;
1563         struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1564         struct cfg80211_chan_def chandef;
1565         struct ieee80211_link_data *link =
1566                 sdata_dereference(sdata->link[link_id], sdata);
1567         struct ieee80211_bss_conf *link_conf = link->conf;
1568
1569         lockdep_assert_wiphy(local->hw.wiphy);
1570
1571         old_beacon = sdata_dereference(link->u.ap.beacon, sdata);
1572         if (!old_beacon)
1573                 return -ENOENT;
1574         old_probe_resp = sdata_dereference(link->u.ap.probe_resp,
1575                                            sdata);
1576         old_fils_discovery = sdata_dereference(link->u.ap.fils_discovery,
1577                                                sdata);
1578         old_unsol_bcast_probe_resp =
1579                 sdata_dereference(link->u.ap.unsol_bcast_probe_resp,
1580                                   sdata);
1581
1582         /* abort any running channel switch or color change */
1583         link_conf->csa_active = false;
1584         link_conf->color_change_active = false;
1585         if (link->csa_block_tx) {
1586                 ieee80211_wake_vif_queues(local, sdata,
1587                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1588                 link->csa_block_tx = false;
1589         }
1590
1591         ieee80211_free_next_beacon(link);
1592
1593         /* turn off carrier for this interface and dependent VLANs */
1594         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1595                 netif_carrier_off(vlan->dev);
1596         netif_carrier_off(dev);
1597
1598         /* remove beacon and probe response */
1599         sdata->u.ap.active = false;
1600         RCU_INIT_POINTER(link->u.ap.beacon, NULL);
1601         RCU_INIT_POINTER(link->u.ap.probe_resp, NULL);
1602         RCU_INIT_POINTER(link->u.ap.fils_discovery, NULL);
1603         RCU_INIT_POINTER(link->u.ap.unsol_bcast_probe_resp, NULL);
1604         kfree_rcu(old_beacon, rcu_head);
1605         if (old_probe_resp)
1606                 kfree_rcu(old_probe_resp, rcu_head);
1607         if (old_fils_discovery)
1608                 kfree_rcu(old_fils_discovery, rcu_head);
1609         if (old_unsol_bcast_probe_resp)
1610                 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1611
1612         kfree(link_conf->ftmr_params);
1613         link_conf->ftmr_params = NULL;
1614
1615         sdata->vif.mbssid_tx_vif = NULL;
1616         link_conf->bssid_index = 0;
1617         link_conf->nontransmitted = false;
1618         link_conf->ema_ap = false;
1619         link_conf->bssid_indicator = 0;
1620
1621         __sta_info_flush(sdata, true);
1622         ieee80211_free_keys(sdata, true);
1623
1624         link_conf->enable_beacon = false;
1625         sdata->beacon_rate_set = false;
1626         sdata->vif.cfg.ssid_len = 0;
1627         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1628         ieee80211_link_info_change_notify(sdata, link,
1629                                           BSS_CHANGED_BEACON_ENABLED);
1630
1631         if (sdata->wdev.cac_started) {
1632                 chandef = link_conf->chandef;
1633                 wiphy_delayed_work_cancel(wiphy, &link->dfs_cac_timer_work);
1634                 cfg80211_cac_event(sdata->dev, &chandef,
1635                                    NL80211_RADAR_CAC_ABORTED,
1636                                    GFP_KERNEL);
1637         }
1638
1639         drv_stop_ap(sdata->local, sdata, link_conf);
1640
1641         /* free all potentially still buffered bcast frames */
1642         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1643         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1644
1645         ieee80211_link_copy_chanctx_to_vlans(link, true);
1646         ieee80211_link_release_channel(link);
1647
1648         return 0;
1649 }
1650
1651 static int sta_apply_auth_flags(struct ieee80211_local *local,
1652                                 struct sta_info *sta,
1653                                 u32 mask, u32 set)
1654 {
1655         int ret;
1656
1657         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1658             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1659             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1660                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1661                 if (ret)
1662                         return ret;
1663         }
1664
1665         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1666             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1667             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1668                 /*
1669                  * When peer becomes associated, init rate control as
1670                  * well. Some drivers require rate control initialized
1671                  * before drv_sta_state() is called.
1672                  */
1673                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1674                         rate_control_rate_init(sta);
1675
1676                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1677                 if (ret)
1678                         return ret;
1679         }
1680
1681         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1682                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1683                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1684                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1685                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1686                 else
1687                         ret = 0;
1688                 if (ret)
1689                         return ret;
1690         }
1691
1692         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1693             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1694             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1695                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1696                 if (ret)
1697                         return ret;
1698         }
1699
1700         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1701             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1702             test_sta_flag(sta, WLAN_STA_AUTH)) {
1703                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1704                 if (ret)
1705                         return ret;
1706         }
1707
1708         return 0;
1709 }
1710
1711 static void sta_apply_mesh_params(struct ieee80211_local *local,
1712                                   struct sta_info *sta,
1713                                   struct station_parameters *params)
1714 {
1715 #ifdef CONFIG_MAC80211_MESH
1716         struct ieee80211_sub_if_data *sdata = sta->sdata;
1717         u64 changed = 0;
1718
1719         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1720                 switch (params->plink_state) {
1721                 case NL80211_PLINK_ESTAB:
1722                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1723                                 changed = mesh_plink_inc_estab_count(sdata);
1724                         sta->mesh->plink_state = params->plink_state;
1725                         sta->mesh->aid = params->peer_aid;
1726
1727                         ieee80211_mps_sta_status_update(sta);
1728                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1729                                       sdata->u.mesh.mshcfg.power_mode);
1730
1731                         ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1732                         /* init at low value */
1733                         ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1734
1735                         break;
1736                 case NL80211_PLINK_LISTEN:
1737                 case NL80211_PLINK_BLOCKED:
1738                 case NL80211_PLINK_OPN_SNT:
1739                 case NL80211_PLINK_OPN_RCVD:
1740                 case NL80211_PLINK_CNF_RCVD:
1741                 case NL80211_PLINK_HOLDING:
1742                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1743                                 changed = mesh_plink_dec_estab_count(sdata);
1744                         sta->mesh->plink_state = params->plink_state;
1745
1746                         ieee80211_mps_sta_status_update(sta);
1747                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1748                                         NL80211_MESH_POWER_UNKNOWN);
1749                         break;
1750                 default:
1751                         /*  nothing  */
1752                         break;
1753                 }
1754         }
1755
1756         switch (params->plink_action) {
1757         case NL80211_PLINK_ACTION_NO_ACTION:
1758                 /* nothing */
1759                 break;
1760         case NL80211_PLINK_ACTION_OPEN:
1761                 changed |= mesh_plink_open(sta);
1762                 break;
1763         case NL80211_PLINK_ACTION_BLOCK:
1764                 changed |= mesh_plink_block(sta);
1765                 break;
1766         }
1767
1768         if (params->local_pm)
1769                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1770                                                           params->local_pm);
1771
1772         ieee80211_mbss_info_change_notify(sdata, changed);
1773 #endif
1774 }
1775
1776 static int sta_link_apply_parameters(struct ieee80211_local *local,
1777                                      struct sta_info *sta, bool new_link,
1778                                      struct link_station_parameters *params)
1779 {
1780         int ret = 0;
1781         struct ieee80211_supported_band *sband;
1782         struct ieee80211_sub_if_data *sdata = sta->sdata;
1783         u32 link_id = params->link_id < 0 ? 0 : params->link_id;
1784         struct ieee80211_link_data *link =
1785                 sdata_dereference(sdata->link[link_id], sdata);
1786         struct link_sta_info *link_sta =
1787                 rcu_dereference_protected(sta->link[link_id],
1788                                           lockdep_is_held(&local->hw.wiphy->mtx));
1789
1790         /*
1791          * If there are no changes, then accept a link that exist,
1792          * unless it's a new link.
1793          */
1794         if (params->link_id >= 0 && !new_link &&
1795             !params->link_mac && !params->txpwr_set &&
1796             !params->supported_rates_len &&
1797             !params->ht_capa && !params->vht_capa &&
1798             !params->he_capa && !params->eht_capa &&
1799             !params->opmode_notif_used)
1800                 return 0;
1801
1802         if (!link || !link_sta)
1803                 return -EINVAL;
1804
1805         sband = ieee80211_get_link_sband(link);
1806         if (!sband)
1807                 return -EINVAL;
1808
1809         if (params->link_mac) {
1810                 if (new_link) {
1811                         memcpy(link_sta->addr, params->link_mac, ETH_ALEN);
1812                         memcpy(link_sta->pub->addr, params->link_mac, ETH_ALEN);
1813                 } else if (!ether_addr_equal(link_sta->addr,
1814                                              params->link_mac)) {
1815                         return -EINVAL;
1816                 }
1817         } else if (new_link) {
1818                 return -EINVAL;
1819         }
1820
1821         if (params->txpwr_set) {
1822                 link_sta->pub->txpwr.type = params->txpwr.type;
1823                 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1824                         link_sta->pub->txpwr.power = params->txpwr.power;
1825                 ret = drv_sta_set_txpwr(local, sdata, sta);
1826                 if (ret)
1827                         return ret;
1828         }
1829
1830         if (params->supported_rates &&
1831             params->supported_rates_len) {
1832                 ieee80211_parse_bitrates(link->conf->chandef.width,
1833                                          sband, params->supported_rates,
1834                                          params->supported_rates_len,
1835                                          &link_sta->pub->supp_rates[sband->band]);
1836         }
1837
1838         if (params->ht_capa)
1839                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1840                                                   params->ht_capa, link_sta);
1841
1842         /* VHT can override some HT caps such as the A-MSDU max length */
1843         if (params->vht_capa)
1844                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1845                                                     params->vht_capa, NULL,
1846                                                     link_sta);
1847
1848         if (params->he_capa)
1849                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1850                                                   (void *)params->he_capa,
1851                                                   params->he_capa_len,
1852                                                   (void *)params->he_6ghz_capa,
1853                                                   link_sta);
1854
1855         if (params->he_capa && params->eht_capa)
1856                 ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband,
1857                                                     (u8 *)params->he_capa,
1858                                                     params->he_capa_len,
1859                                                     params->eht_capa,
1860                                                     params->eht_capa_len,
1861                                                     link_sta);
1862
1863         if (params->opmode_notif_used) {
1864                 /* returned value is only needed for rc update, but the
1865                  * rc isn't initialized here yet, so ignore it
1866                  */
1867                 __ieee80211_vht_handle_opmode(sdata, link_sta,
1868                                               params->opmode_notif,
1869                                               sband->band);
1870         }
1871
1872         return ret;
1873 }
1874
1875 static int sta_apply_parameters(struct ieee80211_local *local,
1876                                 struct sta_info *sta,
1877                                 struct station_parameters *params)
1878 {
1879         struct ieee80211_sub_if_data *sdata = sta->sdata;
1880         u32 mask, set;
1881         int ret = 0;
1882
1883         mask = params->sta_flags_mask;
1884         set = params->sta_flags_set;
1885
1886         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1887                 /*
1888                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1889                  * API but must follow AUTHENTICATED for driver state.
1890                  */
1891                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1892                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1893                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1894                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1895         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1896                 /*
1897                  * TDLS -- everything follows authorized, but
1898                  * only becoming authorized is possible, not
1899                  * going back
1900                  */
1901                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1902                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1903                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1904                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1905                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1906                 }
1907         }
1908
1909         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1910             local->hw.queues >= IEEE80211_NUM_ACS)
1911                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1912
1913         /* auth flags will be set later for TDLS,
1914          * and for unassociated stations that move to associated */
1915         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1916             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1917               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1918                 ret = sta_apply_auth_flags(local, sta, mask, set);
1919                 if (ret)
1920                         return ret;
1921         }
1922
1923         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1924                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1925                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1926                 else
1927                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1928         }
1929
1930         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1931                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1932                 if (set & BIT(NL80211_STA_FLAG_MFP))
1933                         set_sta_flag(sta, WLAN_STA_MFP);
1934                 else
1935                         clear_sta_flag(sta, WLAN_STA_MFP);
1936         }
1937
1938         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1939                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1940                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1941                 else
1942                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1943         }
1944
1945         /* mark TDLS channel switch support, if the AP allows it */
1946         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1947             !sdata->deflink.u.mgd.tdls_chan_switch_prohibited &&
1948             params->ext_capab_len >= 4 &&
1949             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1950                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1951
1952         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1953             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1954             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1955             params->ext_capab_len >= 8 &&
1956             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1957                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1958
1959         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1960                 sta->sta.uapsd_queues = params->uapsd_queues;
1961                 sta->sta.max_sp = params->max_sp;
1962         }
1963
1964         ieee80211_sta_set_max_amsdu_subframes(sta, params->ext_capab,
1965                                               params->ext_capab_len);
1966
1967         /*
1968          * cfg80211 validates this (1-2007) and allows setting the AID
1969          * only when creating a new station entry
1970          */
1971         if (params->aid)
1972                 sta->sta.aid = params->aid;
1973
1974         /*
1975          * Some of the following updates would be racy if called on an
1976          * existing station, via ieee80211_change_station(). However,
1977          * all such changes are rejected by cfg80211 except for updates
1978          * changing the supported rates on an existing but not yet used
1979          * TDLS peer.
1980          */
1981
1982         if (params->listen_interval >= 0)
1983                 sta->listen_interval = params->listen_interval;
1984
1985         ret = sta_link_apply_parameters(local, sta, false,
1986                                         &params->link_sta_params);
1987         if (ret)
1988                 return ret;
1989
1990         if (params->support_p2p_ps >= 0)
1991                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1992
1993         if (ieee80211_vif_is_mesh(&sdata->vif))
1994                 sta_apply_mesh_params(local, sta, params);
1995
1996         if (params->airtime_weight)
1997                 sta->airtime_weight = params->airtime_weight;
1998
1999         /* set the STA state after all sta info from usermode has been set */
2000         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
2001             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
2002                 ret = sta_apply_auth_flags(local, sta, mask, set);
2003                 if (ret)
2004                         return ret;
2005         }
2006
2007         /* Mark the STA as MLO if MLD MAC address is available */
2008         if (params->link_sta_params.mld_mac)
2009                 sta->sta.mlo = true;
2010
2011         return 0;
2012 }
2013
2014 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
2015                                  const u8 *mac,
2016                                  struct station_parameters *params)
2017 {
2018         struct ieee80211_local *local = wiphy_priv(wiphy);
2019         struct sta_info *sta;
2020         struct ieee80211_sub_if_data *sdata;
2021         int err;
2022
2023         lockdep_assert_wiphy(local->hw.wiphy);
2024
2025         if (params->vlan) {
2026                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2027
2028                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
2029                     sdata->vif.type != NL80211_IFTYPE_AP)
2030                         return -EINVAL;
2031         } else
2032                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2033
2034         if (ether_addr_equal(mac, sdata->vif.addr))
2035                 return -EINVAL;
2036
2037         if (!is_valid_ether_addr(mac))
2038                 return -EINVAL;
2039
2040         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
2041             sdata->vif.type == NL80211_IFTYPE_STATION &&
2042             !sdata->u.mgd.associated)
2043                 return -EINVAL;
2044
2045         /*
2046          * If we have a link ID, it can be a non-MLO station on an AP MLD,
2047          * but we need to have a link_mac in that case as well, so use the
2048          * STA's MAC address in that case.
2049          */
2050         if (params->link_sta_params.link_id >= 0)
2051                 sta = sta_info_alloc_with_link(sdata, mac,
2052                                                params->link_sta_params.link_id,
2053                                                params->link_sta_params.link_mac ?: mac,
2054                                                GFP_KERNEL);
2055         else
2056                 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
2057
2058         if (!sta)
2059                 return -ENOMEM;
2060
2061         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
2062                 sta->sta.tdls = true;
2063
2064         /* Though the mutex is not needed here (since the station is not
2065          * visible yet), sta_apply_parameters (and inner functions) require
2066          * the mutex due to other paths.
2067          */
2068         err = sta_apply_parameters(local, sta, params);
2069         if (err) {
2070                 sta_info_free(local, sta);
2071                 return err;
2072         }
2073
2074         /*
2075          * for TDLS and for unassociated station, rate control should be
2076          * initialized only when rates are known and station is marked
2077          * authorized/associated
2078          */
2079         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
2080             test_sta_flag(sta, WLAN_STA_ASSOC))
2081                 rate_control_rate_init(sta);
2082
2083         return sta_info_insert(sta);
2084 }
2085
2086 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
2087                                  struct station_del_parameters *params)
2088 {
2089         struct ieee80211_sub_if_data *sdata;
2090
2091         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2092
2093         if (params->mac)
2094                 return sta_info_destroy_addr_bss(sdata, params->mac);
2095
2096         sta_info_flush(sdata);
2097         return 0;
2098 }
2099
2100 static int ieee80211_change_station(struct wiphy *wiphy,
2101                                     struct net_device *dev, const u8 *mac,
2102                                     struct station_parameters *params)
2103 {
2104         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2105         struct ieee80211_local *local = wiphy_priv(wiphy);
2106         struct sta_info *sta;
2107         struct ieee80211_sub_if_data *vlansdata;
2108         enum cfg80211_station_type statype;
2109         int err;
2110
2111         lockdep_assert_wiphy(local->hw.wiphy);
2112
2113         sta = sta_info_get_bss(sdata, mac);
2114         if (!sta)
2115                 return -ENOENT;
2116
2117         switch (sdata->vif.type) {
2118         case NL80211_IFTYPE_MESH_POINT:
2119                 if (sdata->u.mesh.user_mpm)
2120                         statype = CFG80211_STA_MESH_PEER_USER;
2121                 else
2122                         statype = CFG80211_STA_MESH_PEER_KERNEL;
2123                 break;
2124         case NL80211_IFTYPE_ADHOC:
2125                 statype = CFG80211_STA_IBSS;
2126                 break;
2127         case NL80211_IFTYPE_STATION:
2128                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
2129                         statype = CFG80211_STA_AP_STA;
2130                         break;
2131                 }
2132                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2133                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
2134                 else
2135                         statype = CFG80211_STA_TDLS_PEER_SETUP;
2136                 break;
2137         case NL80211_IFTYPE_AP:
2138         case NL80211_IFTYPE_AP_VLAN:
2139                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
2140                         statype = CFG80211_STA_AP_CLIENT;
2141                 else
2142                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
2143                 break;
2144         default:
2145                 return -EOPNOTSUPP;
2146         }
2147
2148         err = cfg80211_check_station_change(wiphy, params, statype);
2149         if (err)
2150                 return err;
2151
2152         if (params->vlan && params->vlan != sta->sdata->dev) {
2153                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
2154
2155                 if (params->vlan->ieee80211_ptr->use_4addr) {
2156                         if (vlansdata->u.vlan.sta)
2157                                 return -EBUSY;
2158
2159                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
2160                         __ieee80211_check_fast_rx_iface(vlansdata);
2161                         drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
2162                 }
2163
2164                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
2165                     sta->sdata->u.vlan.sta) {
2166                         ieee80211_clear_fast_rx(sta);
2167                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
2168                 }
2169
2170                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2171                         ieee80211_vif_dec_num_mcast(sta->sdata);
2172
2173                 sta->sdata = vlansdata;
2174                 ieee80211_check_fast_xmit(sta);
2175
2176                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
2177                         ieee80211_vif_inc_num_mcast(sta->sdata);
2178                         cfg80211_send_layer2_update(sta->sdata->dev,
2179                                                     sta->sta.addr);
2180                 }
2181         }
2182
2183         err = sta_apply_parameters(local, sta, params);
2184         if (err)
2185                 return err;
2186
2187         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
2188             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
2189                 ieee80211_recalc_ps(local);
2190                 ieee80211_recalc_ps_vif(sdata);
2191         }
2192
2193         return 0;
2194 }
2195
2196 #ifdef CONFIG_MAC80211_MESH
2197 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
2198                                const u8 *dst, const u8 *next_hop)
2199 {
2200         struct ieee80211_sub_if_data *sdata;
2201         struct mesh_path *mpath;
2202         struct sta_info *sta;
2203
2204         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2205
2206         rcu_read_lock();
2207         sta = sta_info_get(sdata, next_hop);
2208         if (!sta) {
2209                 rcu_read_unlock();
2210                 return -ENOENT;
2211         }
2212
2213         mpath = mesh_path_add(sdata, dst);
2214         if (IS_ERR(mpath)) {
2215                 rcu_read_unlock();
2216                 return PTR_ERR(mpath);
2217         }
2218
2219         mesh_path_fix_nexthop(mpath, sta);
2220
2221         rcu_read_unlock();
2222         return 0;
2223 }
2224
2225 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
2226                                const u8 *dst)
2227 {
2228         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2229
2230         if (dst)
2231                 return mesh_path_del(sdata, dst);
2232
2233         mesh_path_flush_by_iface(sdata);
2234         return 0;
2235 }
2236
2237 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
2238                                   const u8 *dst, const u8 *next_hop)
2239 {
2240         struct ieee80211_sub_if_data *sdata;
2241         struct mesh_path *mpath;
2242         struct sta_info *sta;
2243
2244         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2245
2246         rcu_read_lock();
2247
2248         sta = sta_info_get(sdata, next_hop);
2249         if (!sta) {
2250                 rcu_read_unlock();
2251                 return -ENOENT;
2252         }
2253
2254         mpath = mesh_path_lookup(sdata, dst);
2255         if (!mpath) {
2256                 rcu_read_unlock();
2257                 return -ENOENT;
2258         }
2259
2260         mesh_path_fix_nexthop(mpath, sta);
2261
2262         rcu_read_unlock();
2263         return 0;
2264 }
2265
2266 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
2267                             struct mpath_info *pinfo)
2268 {
2269         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
2270
2271         if (next_hop_sta)
2272                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
2273         else
2274                 eth_zero_addr(next_hop);
2275
2276         memset(pinfo, 0, sizeof(*pinfo));
2277
2278         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
2279
2280         pinfo->filled = MPATH_INFO_FRAME_QLEN |
2281                         MPATH_INFO_SN |
2282                         MPATH_INFO_METRIC |
2283                         MPATH_INFO_EXPTIME |
2284                         MPATH_INFO_DISCOVERY_TIMEOUT |
2285                         MPATH_INFO_DISCOVERY_RETRIES |
2286                         MPATH_INFO_FLAGS |
2287                         MPATH_INFO_HOP_COUNT |
2288                         MPATH_INFO_PATH_CHANGE;
2289
2290         pinfo->frame_qlen = mpath->frame_queue.qlen;
2291         pinfo->sn = mpath->sn;
2292         pinfo->metric = mpath->metric;
2293         if (time_before(jiffies, mpath->exp_time))
2294                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
2295         pinfo->discovery_timeout =
2296                         jiffies_to_msecs(mpath->discovery_timeout);
2297         pinfo->discovery_retries = mpath->discovery_retries;
2298         if (mpath->flags & MESH_PATH_ACTIVE)
2299                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
2300         if (mpath->flags & MESH_PATH_RESOLVING)
2301                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
2302         if (mpath->flags & MESH_PATH_SN_VALID)
2303                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
2304         if (mpath->flags & MESH_PATH_FIXED)
2305                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
2306         if (mpath->flags & MESH_PATH_RESOLVED)
2307                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
2308         pinfo->hop_count = mpath->hop_count;
2309         pinfo->path_change_count = mpath->path_change_count;
2310 }
2311
2312 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
2313                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
2314
2315 {
2316         struct ieee80211_sub_if_data *sdata;
2317         struct mesh_path *mpath;
2318
2319         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2320
2321         rcu_read_lock();
2322         mpath = mesh_path_lookup(sdata, dst);
2323         if (!mpath) {
2324                 rcu_read_unlock();
2325                 return -ENOENT;
2326         }
2327         memcpy(dst, mpath->dst, ETH_ALEN);
2328         mpath_set_pinfo(mpath, next_hop, pinfo);
2329         rcu_read_unlock();
2330         return 0;
2331 }
2332
2333 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2334                                 int idx, u8 *dst, u8 *next_hop,
2335                                 struct mpath_info *pinfo)
2336 {
2337         struct ieee80211_sub_if_data *sdata;
2338         struct mesh_path *mpath;
2339
2340         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2341
2342         rcu_read_lock();
2343         mpath = mesh_path_lookup_by_idx(sdata, idx);
2344         if (!mpath) {
2345                 rcu_read_unlock();
2346                 return -ENOENT;
2347         }
2348         memcpy(dst, mpath->dst, ETH_ALEN);
2349         mpath_set_pinfo(mpath, next_hop, pinfo);
2350         rcu_read_unlock();
2351         return 0;
2352 }
2353
2354 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2355                           struct mpath_info *pinfo)
2356 {
2357         memset(pinfo, 0, sizeof(*pinfo));
2358         memcpy(mpp, mpath->mpp, ETH_ALEN);
2359
2360         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2361 }
2362
2363 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2364                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2365
2366 {
2367         struct ieee80211_sub_if_data *sdata;
2368         struct mesh_path *mpath;
2369
2370         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2371
2372         rcu_read_lock();
2373         mpath = mpp_path_lookup(sdata, dst);
2374         if (!mpath) {
2375                 rcu_read_unlock();
2376                 return -ENOENT;
2377         }
2378         memcpy(dst, mpath->dst, ETH_ALEN);
2379         mpp_set_pinfo(mpath, mpp, pinfo);
2380         rcu_read_unlock();
2381         return 0;
2382 }
2383
2384 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2385                               int idx, u8 *dst, u8 *mpp,
2386                               struct mpath_info *pinfo)
2387 {
2388         struct ieee80211_sub_if_data *sdata;
2389         struct mesh_path *mpath;
2390
2391         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2392
2393         rcu_read_lock();
2394         mpath = mpp_path_lookup_by_idx(sdata, idx);
2395         if (!mpath) {
2396                 rcu_read_unlock();
2397                 return -ENOENT;
2398         }
2399         memcpy(dst, mpath->dst, ETH_ALEN);
2400         mpp_set_pinfo(mpath, mpp, pinfo);
2401         rcu_read_unlock();
2402         return 0;
2403 }
2404
2405 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2406                                 struct net_device *dev,
2407                                 struct mesh_config *conf)
2408 {
2409         struct ieee80211_sub_if_data *sdata;
2410         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2411
2412         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2413         return 0;
2414 }
2415
2416 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2417 {
2418         return (mask >> (parm-1)) & 0x1;
2419 }
2420
2421 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2422                 const struct mesh_setup *setup)
2423 {
2424         u8 *new_ie;
2425         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2426                                         struct ieee80211_sub_if_data, u.mesh);
2427         int i;
2428
2429         /* allocate information elements */
2430         new_ie = NULL;
2431
2432         if (setup->ie_len) {
2433                 new_ie = kmemdup(setup->ie, setup->ie_len,
2434                                 GFP_KERNEL);
2435                 if (!new_ie)
2436                         return -ENOMEM;
2437         }
2438         ifmsh->ie_len = setup->ie_len;
2439         ifmsh->ie = new_ie;
2440
2441         /* now copy the rest of the setup parameters */
2442         ifmsh->mesh_id_len = setup->mesh_id_len;
2443         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2444         ifmsh->mesh_sp_id = setup->sync_method;
2445         ifmsh->mesh_pp_id = setup->path_sel_proto;
2446         ifmsh->mesh_pm_id = setup->path_metric;
2447         ifmsh->user_mpm = setup->user_mpm;
2448         ifmsh->mesh_auth_id = setup->auth_id;
2449         ifmsh->security = IEEE80211_MESH_SEC_NONE;
2450         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2451         if (setup->is_authenticated)
2452                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2453         if (setup->is_secure)
2454                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2455
2456         /* mcast rate setting in Mesh Node */
2457         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2458                                                 sizeof(setup->mcast_rate));
2459         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2460
2461         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2462         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2463
2464         sdata->beacon_rate_set = false;
2465         if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2466                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2467                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2468                         sdata->beacon_rateidx_mask[i] =
2469                                 setup->beacon_rate.control[i].legacy;
2470                         if (sdata->beacon_rateidx_mask[i])
2471                                 sdata->beacon_rate_set = true;
2472                 }
2473         }
2474
2475         return 0;
2476 }
2477
2478 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2479                                         struct net_device *dev, u32 mask,
2480                                         const struct mesh_config *nconf)
2481 {
2482         struct mesh_config *conf;
2483         struct ieee80211_sub_if_data *sdata;
2484         struct ieee80211_if_mesh *ifmsh;
2485
2486         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2487         ifmsh = &sdata->u.mesh;
2488
2489         /* Set the config options which we are interested in setting */
2490         conf = &(sdata->u.mesh.mshcfg);
2491         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2492                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2493         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2494                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2495         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2496                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2497         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2498                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2499         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2500                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2501         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2502                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2503         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2504                 conf->element_ttl = nconf->element_ttl;
2505         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2506                 if (ifmsh->user_mpm)
2507                         return -EBUSY;
2508                 conf->auto_open_plinks = nconf->auto_open_plinks;
2509         }
2510         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2511                 conf->dot11MeshNbrOffsetMaxNeighbor =
2512                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2513         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2514                 conf->dot11MeshHWMPmaxPREQretries =
2515                         nconf->dot11MeshHWMPmaxPREQretries;
2516         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2517                 conf->path_refresh_time = nconf->path_refresh_time;
2518         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2519                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2520         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2521                 conf->dot11MeshHWMPactivePathTimeout =
2522                         nconf->dot11MeshHWMPactivePathTimeout;
2523         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2524                 conf->dot11MeshHWMPpreqMinInterval =
2525                         nconf->dot11MeshHWMPpreqMinInterval;
2526         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2527                 conf->dot11MeshHWMPperrMinInterval =
2528                         nconf->dot11MeshHWMPperrMinInterval;
2529         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2530                            mask))
2531                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2532                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2533         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2534                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2535                 ieee80211_mesh_root_setup(ifmsh);
2536         }
2537         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2538                 /* our current gate announcement implementation rides on root
2539                  * announcements, so require this ifmsh to also be a root node
2540                  * */
2541                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2542                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2543                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2544                         ieee80211_mesh_root_setup(ifmsh);
2545                 }
2546                 conf->dot11MeshGateAnnouncementProtocol =
2547                         nconf->dot11MeshGateAnnouncementProtocol;
2548         }
2549         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2550                 conf->dot11MeshHWMPRannInterval =
2551                         nconf->dot11MeshHWMPRannInterval;
2552         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2553                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2554         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2555                 /* our RSSI threshold implementation is supported only for
2556                  * devices that report signal in dBm.
2557                  */
2558                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2559                         return -ENOTSUPP;
2560                 conf->rssi_threshold = nconf->rssi_threshold;
2561         }
2562         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2563                 conf->ht_opmode = nconf->ht_opmode;
2564                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2565                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2566                                                   BSS_CHANGED_HT);
2567         }
2568         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2569                 conf->dot11MeshHWMPactivePathToRootTimeout =
2570                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2571         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2572                 conf->dot11MeshHWMProotInterval =
2573                         nconf->dot11MeshHWMProotInterval;
2574         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2575                 conf->dot11MeshHWMPconfirmationInterval =
2576                         nconf->dot11MeshHWMPconfirmationInterval;
2577         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2578                 conf->power_mode = nconf->power_mode;
2579                 ieee80211_mps_local_status_update(sdata);
2580         }
2581         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2582                 conf->dot11MeshAwakeWindowDuration =
2583                         nconf->dot11MeshAwakeWindowDuration;
2584         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2585                 conf->plink_timeout = nconf->plink_timeout;
2586         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2587                 conf->dot11MeshConnectedToMeshGate =
2588                         nconf->dot11MeshConnectedToMeshGate;
2589         if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2590                 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2591         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2592                 conf->dot11MeshConnectedToAuthServer =
2593                         nconf->dot11MeshConnectedToAuthServer;
2594         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2595         return 0;
2596 }
2597
2598 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2599                                const struct mesh_config *conf,
2600                                const struct mesh_setup *setup)
2601 {
2602         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2603         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2604         int err;
2605
2606         lockdep_assert_wiphy(sdata->local->hw.wiphy);
2607
2608         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2609         err = copy_mesh_setup(ifmsh, setup);
2610         if (err)
2611                 return err;
2612
2613         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2614
2615         /* can mesh use other SMPS modes? */
2616         sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
2617         sdata->deflink.needed_rx_chains = sdata->local->rx_chains;
2618
2619         err = ieee80211_link_use_channel(&sdata->deflink, &setup->chandef,
2620                                          IEEE80211_CHANCTX_SHARED);
2621         if (err)
2622                 return err;
2623
2624         return ieee80211_start_mesh(sdata);
2625 }
2626
2627 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2628 {
2629         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2630
2631         lockdep_assert_wiphy(sdata->local->hw.wiphy);
2632
2633         ieee80211_stop_mesh(sdata);
2634         ieee80211_link_release_channel(&sdata->deflink);
2635         kfree(sdata->u.mesh.ie);
2636
2637         return 0;
2638 }
2639 #endif
2640
2641 static int ieee80211_change_bss(struct wiphy *wiphy,
2642                                 struct net_device *dev,
2643                                 struct bss_parameters *params)
2644 {
2645         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2646         struct ieee80211_link_data *link;
2647         struct ieee80211_supported_band *sband;
2648         u64 changed = 0;
2649
2650         link = ieee80211_link_or_deflink(sdata, params->link_id, true);
2651         if (IS_ERR(link))
2652                 return PTR_ERR(link);
2653
2654         if (!sdata_dereference(link->u.ap.beacon, sdata))
2655                 return -ENOENT;
2656
2657         sband = ieee80211_get_link_sband(link);
2658         if (!sband)
2659                 return -EINVAL;
2660
2661         if (params->basic_rates) {
2662                 if (!ieee80211_parse_bitrates(link->conf->chandef.width,
2663                                               wiphy->bands[sband->band],
2664                                               params->basic_rates,
2665                                               params->basic_rates_len,
2666                                               &link->conf->basic_rates))
2667                         return -EINVAL;
2668                 changed |= BSS_CHANGED_BASIC_RATES;
2669                 ieee80211_check_rate_mask(link);
2670         }
2671
2672         if (params->use_cts_prot >= 0) {
2673                 link->conf->use_cts_prot = params->use_cts_prot;
2674                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2675         }
2676         if (params->use_short_preamble >= 0) {
2677                 link->conf->use_short_preamble = params->use_short_preamble;
2678                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2679         }
2680
2681         if (!link->conf->use_short_slot &&
2682             (sband->band == NL80211_BAND_5GHZ ||
2683              sband->band == NL80211_BAND_6GHZ)) {
2684                 link->conf->use_short_slot = true;
2685                 changed |= BSS_CHANGED_ERP_SLOT;
2686         }
2687
2688         if (params->use_short_slot_time >= 0) {
2689                 link->conf->use_short_slot = params->use_short_slot_time;
2690                 changed |= BSS_CHANGED_ERP_SLOT;
2691         }
2692
2693         if (params->ap_isolate >= 0) {
2694                 if (params->ap_isolate)
2695                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2696                 else
2697                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2698                 ieee80211_check_fast_rx_iface(sdata);
2699         }
2700
2701         if (params->ht_opmode >= 0) {
2702                 link->conf->ht_operation_mode = (u16)params->ht_opmode;
2703                 changed |= BSS_CHANGED_HT;
2704         }
2705
2706         if (params->p2p_ctwindow >= 0) {
2707                 link->conf->p2p_noa_attr.oppps_ctwindow &=
2708                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2709                 link->conf->p2p_noa_attr.oppps_ctwindow |=
2710                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2711                 changed |= BSS_CHANGED_P2P_PS;
2712         }
2713
2714         if (params->p2p_opp_ps > 0) {
2715                 link->conf->p2p_noa_attr.oppps_ctwindow |=
2716                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2717                 changed |= BSS_CHANGED_P2P_PS;
2718         } else if (params->p2p_opp_ps == 0) {
2719                 link->conf->p2p_noa_attr.oppps_ctwindow &=
2720                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2721                 changed |= BSS_CHANGED_P2P_PS;
2722         }
2723
2724         ieee80211_link_info_change_notify(sdata, link, changed);
2725
2726         return 0;
2727 }
2728
2729 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2730                                     struct net_device *dev,
2731                                     struct ieee80211_txq_params *params)
2732 {
2733         struct ieee80211_local *local = wiphy_priv(wiphy);
2734         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2735         struct ieee80211_link_data *link =
2736                 ieee80211_link_or_deflink(sdata, params->link_id, true);
2737         struct ieee80211_tx_queue_params p;
2738
2739         if (!local->ops->conf_tx)
2740                 return -EOPNOTSUPP;
2741
2742         if (local->hw.queues < IEEE80211_NUM_ACS)
2743                 return -EOPNOTSUPP;
2744
2745         if (IS_ERR(link))
2746                 return PTR_ERR(link);
2747
2748         memset(&p, 0, sizeof(p));
2749         p.aifs = params->aifs;
2750         p.cw_max = params->cwmax;
2751         p.cw_min = params->cwmin;
2752         p.txop = params->txop;
2753
2754         /*
2755          * Setting tx queue params disables u-apsd because it's only
2756          * called in master mode.
2757          */
2758         p.uapsd = false;
2759
2760         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2761
2762         link->tx_conf[params->ac] = p;
2763         if (drv_conf_tx(local, link, params->ac, &p)) {
2764                 wiphy_debug(local->hw.wiphy,
2765                             "failed to set TX queue parameters for AC %d\n",
2766                             params->ac);
2767                 return -EINVAL;
2768         }
2769
2770         ieee80211_link_info_change_notify(sdata, link,
2771                                           BSS_CHANGED_QOS);
2772
2773         return 0;
2774 }
2775
2776 #ifdef CONFIG_PM
2777 static int ieee80211_suspend(struct wiphy *wiphy,
2778                              struct cfg80211_wowlan *wowlan)
2779 {
2780         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2781 }
2782
2783 static int ieee80211_resume(struct wiphy *wiphy)
2784 {
2785         return __ieee80211_resume(wiphy_priv(wiphy));
2786 }
2787 #else
2788 #define ieee80211_suspend NULL
2789 #define ieee80211_resume NULL
2790 #endif
2791
2792 static int ieee80211_scan(struct wiphy *wiphy,
2793                           struct cfg80211_scan_request *req)
2794 {
2795         struct ieee80211_sub_if_data *sdata;
2796
2797         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2798
2799         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2800         case NL80211_IFTYPE_STATION:
2801         case NL80211_IFTYPE_ADHOC:
2802         case NL80211_IFTYPE_MESH_POINT:
2803         case NL80211_IFTYPE_P2P_CLIENT:
2804         case NL80211_IFTYPE_P2P_DEVICE:
2805                 break;
2806         case NL80211_IFTYPE_P2P_GO:
2807                 if (sdata->local->ops->hw_scan)
2808                         break;
2809                 /*
2810                  * FIXME: implement NoA while scanning in software,
2811                  * for now fall through to allow scanning only when
2812                  * beaconing hasn't been configured yet
2813                  */
2814                 fallthrough;
2815         case NL80211_IFTYPE_AP:
2816                 /*
2817                  * If the scan has been forced (and the driver supports
2818                  * forcing), don't care about being beaconing already.
2819                  * This will create problems to the attached stations (e.g. all
2820                  * the frames sent while scanning on other channel will be
2821                  * lost)
2822                  */
2823                 if (sdata->deflink.u.ap.beacon &&
2824                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2825                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2826                         return -EOPNOTSUPP;
2827                 break;
2828         case NL80211_IFTYPE_NAN:
2829         default:
2830                 return -EOPNOTSUPP;
2831         }
2832
2833         return ieee80211_request_scan(sdata, req);
2834 }
2835
2836 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2837 {
2838         ieee80211_scan_cancel(wiphy_priv(wiphy));
2839 }
2840
2841 static int
2842 ieee80211_sched_scan_start(struct wiphy *wiphy,
2843                            struct net_device *dev,
2844                            struct cfg80211_sched_scan_request *req)
2845 {
2846         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2847
2848         if (!sdata->local->ops->sched_scan_start)
2849                 return -EOPNOTSUPP;
2850
2851         return ieee80211_request_sched_scan_start(sdata, req);
2852 }
2853
2854 static int
2855 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2856                           u64 reqid)
2857 {
2858         struct ieee80211_local *local = wiphy_priv(wiphy);
2859
2860         if (!local->ops->sched_scan_stop)
2861                 return -EOPNOTSUPP;
2862
2863         return ieee80211_request_sched_scan_stop(local);
2864 }
2865
2866 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2867                           struct cfg80211_auth_request *req)
2868 {
2869         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2870 }
2871
2872 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2873                            struct cfg80211_assoc_request *req)
2874 {
2875         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2876 }
2877
2878 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2879                             struct cfg80211_deauth_request *req)
2880 {
2881         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2882 }
2883
2884 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2885                               struct cfg80211_disassoc_request *req)
2886 {
2887         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2888 }
2889
2890 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2891                                struct cfg80211_ibss_params *params)
2892 {
2893         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2894 }
2895
2896 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2897 {
2898         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2899 }
2900
2901 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2902                               struct ocb_setup *setup)
2903 {
2904         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2905 }
2906
2907 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2908 {
2909         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2910 }
2911
2912 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2913                                     int rate[NUM_NL80211_BANDS])
2914 {
2915         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2916
2917         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2918                sizeof(int) * NUM_NL80211_BANDS);
2919
2920         ieee80211_link_info_change_notify(sdata, &sdata->deflink,
2921                                           BSS_CHANGED_MCAST_RATE);
2922
2923         return 0;
2924 }
2925
2926 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2927 {
2928         struct ieee80211_local *local = wiphy_priv(wiphy);
2929         int err;
2930
2931         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2932                 ieee80211_check_fast_xmit_all(local);
2933
2934                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2935
2936                 if (err) {
2937                         ieee80211_check_fast_xmit_all(local);
2938                         return err;
2939                 }
2940         }
2941
2942         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2943             (changed & WIPHY_PARAM_DYN_ACK)) {
2944                 s16 coverage_class;
2945
2946                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2947                                         wiphy->coverage_class : -1;
2948                 err = drv_set_coverage_class(local, coverage_class);
2949
2950                 if (err)
2951                         return err;
2952         }
2953
2954         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2955                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2956
2957                 if (err)
2958                         return err;
2959         }
2960
2961         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2962                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2963                         return -EINVAL;
2964                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2965         }
2966         if (changed & WIPHY_PARAM_RETRY_LONG) {
2967                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2968                         return -EINVAL;
2969                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2970         }
2971         if (changed &
2972             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2973                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2974
2975         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2976                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2977                        WIPHY_PARAM_TXQ_QUANTUM))
2978                 ieee80211_txq_set_params(local);
2979
2980         return 0;
2981 }
2982
2983 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2984                                   struct wireless_dev *wdev,
2985                                   enum nl80211_tx_power_setting type, int mbm)
2986 {
2987         struct ieee80211_local *local = wiphy_priv(wiphy);
2988         struct ieee80211_sub_if_data *sdata;
2989         enum nl80211_tx_power_setting txp_type = type;
2990         bool update_txp_type = false;
2991         bool has_monitor = false;
2992
2993         lockdep_assert_wiphy(local->hw.wiphy);
2994
2995         if (wdev) {
2996                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2997
2998                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2999                         sdata = wiphy_dereference(local->hw.wiphy,
3000                                                   local->monitor_sdata);
3001                         if (!sdata)
3002                                 return -EOPNOTSUPP;
3003                 }
3004
3005                 switch (type) {
3006                 case NL80211_TX_POWER_AUTOMATIC:
3007                         sdata->deflink.user_power_level =
3008                                 IEEE80211_UNSET_POWER_LEVEL;
3009                         txp_type = NL80211_TX_POWER_LIMITED;
3010                         break;
3011                 case NL80211_TX_POWER_LIMITED:
3012                 case NL80211_TX_POWER_FIXED:
3013                         if (mbm < 0 || (mbm % 100))
3014                                 return -EOPNOTSUPP;
3015                         sdata->deflink.user_power_level = MBM_TO_DBM(mbm);
3016                         break;
3017                 }
3018
3019                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
3020                         update_txp_type = true;
3021                         sdata->vif.bss_conf.txpower_type = txp_type;
3022                 }
3023
3024                 ieee80211_recalc_txpower(sdata, update_txp_type);
3025
3026                 return 0;
3027         }
3028
3029         switch (type) {
3030         case NL80211_TX_POWER_AUTOMATIC:
3031                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
3032                 txp_type = NL80211_TX_POWER_LIMITED;
3033                 break;
3034         case NL80211_TX_POWER_LIMITED:
3035         case NL80211_TX_POWER_FIXED:
3036                 if (mbm < 0 || (mbm % 100))
3037                         return -EOPNOTSUPP;
3038                 local->user_power_level = MBM_TO_DBM(mbm);
3039                 break;
3040         }
3041
3042         list_for_each_entry(sdata, &local->interfaces, list) {
3043                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3044                         has_monitor = true;
3045                         continue;
3046                 }
3047                 sdata->deflink.user_power_level = local->user_power_level;
3048                 if (txp_type != sdata->vif.bss_conf.txpower_type)
3049                         update_txp_type = true;
3050                 sdata->vif.bss_conf.txpower_type = txp_type;
3051         }
3052         list_for_each_entry(sdata, &local->interfaces, list) {
3053                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
3054                         continue;
3055                 ieee80211_recalc_txpower(sdata, update_txp_type);
3056         }
3057
3058         if (has_monitor) {
3059                 sdata = wiphy_dereference(local->hw.wiphy,
3060                                           local->monitor_sdata);
3061                 if (sdata) {
3062                         sdata->deflink.user_power_level = local->user_power_level;
3063                         if (txp_type != sdata->vif.bss_conf.txpower_type)
3064                                 update_txp_type = true;
3065                         sdata->vif.bss_conf.txpower_type = txp_type;
3066
3067                         ieee80211_recalc_txpower(sdata, update_txp_type);
3068                 }
3069         }
3070
3071         return 0;
3072 }
3073
3074 static int ieee80211_get_tx_power(struct wiphy *wiphy,
3075                                   struct wireless_dev *wdev,
3076                                   int *dbm)
3077 {
3078         struct ieee80211_local *local = wiphy_priv(wiphy);
3079         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3080
3081         if (local->ops->get_txpower)
3082                 return drv_get_txpower(local, sdata, dbm);
3083
3084         if (!local->use_chanctx)
3085                 *dbm = local->hw.conf.power_level;
3086         else
3087                 *dbm = sdata->vif.bss_conf.txpower;
3088
3089         /* INT_MIN indicates no power level was set yet */
3090         if (*dbm == INT_MIN)
3091                 return -EINVAL;
3092
3093         return 0;
3094 }
3095
3096 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
3097 {
3098         struct ieee80211_local *local = wiphy_priv(wiphy);
3099
3100         drv_rfkill_poll(local);
3101 }
3102
3103 #ifdef CONFIG_NL80211_TESTMODE
3104 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
3105                                   struct wireless_dev *wdev,
3106                                   void *data, int len)
3107 {
3108         struct ieee80211_local *local = wiphy_priv(wiphy);
3109         struct ieee80211_vif *vif = NULL;
3110
3111         if (!local->ops->testmode_cmd)
3112                 return -EOPNOTSUPP;
3113
3114         if (wdev) {
3115                 struct ieee80211_sub_if_data *sdata;
3116
3117                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3118                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
3119                         vif = &sdata->vif;
3120         }
3121
3122         return local->ops->testmode_cmd(&local->hw, vif, data, len);
3123 }
3124
3125 static int ieee80211_testmode_dump(struct wiphy *wiphy,
3126                                    struct sk_buff *skb,
3127                                    struct netlink_callback *cb,
3128                                    void *data, int len)
3129 {
3130         struct ieee80211_local *local = wiphy_priv(wiphy);
3131
3132         if (!local->ops->testmode_dump)
3133                 return -EOPNOTSUPP;
3134
3135         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
3136 }
3137 #endif
3138
3139 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
3140                                  struct ieee80211_link_data *link,
3141                                  enum ieee80211_smps_mode smps_mode)
3142 {
3143         const u8 *ap;
3144         enum ieee80211_smps_mode old_req;
3145         int err;
3146         struct sta_info *sta;
3147         bool tdls_peer_found = false;
3148
3149         lockdep_assert_wiphy(sdata->local->hw.wiphy);
3150
3151         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
3152                 return -EINVAL;
3153
3154         if (ieee80211_vif_is_mld(&sdata->vif) &&
3155             !(sdata->vif.active_links & BIT(link->link_id)))
3156                 return 0;
3157
3158         old_req = link->u.mgd.req_smps;
3159         link->u.mgd.req_smps = smps_mode;
3160
3161         /* The driver indicated that EML is enabled for the interface, which
3162          * implies that SMPS flows towards the AP should be stopped.
3163          */
3164         if (sdata->vif.driver_flags & IEEE80211_VIF_EML_ACTIVE)
3165                 return 0;
3166
3167         if (old_req == smps_mode &&
3168             smps_mode != IEEE80211_SMPS_AUTOMATIC)
3169                 return 0;
3170
3171         /*
3172          * If not associated, or current association is not an HT
3173          * association, there's no need to do anything, just store
3174          * the new value until we associate.
3175          */
3176         if (!sdata->u.mgd.associated ||
3177             link->conf->chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
3178                 return 0;
3179
3180         ap = sdata->vif.cfg.ap_addr;
3181
3182         rcu_read_lock();
3183         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
3184                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
3185                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
3186                         continue;
3187
3188                 tdls_peer_found = true;
3189                 break;
3190         }
3191         rcu_read_unlock();
3192
3193         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
3194                 if (tdls_peer_found || !sdata->u.mgd.powersave)
3195                         smps_mode = IEEE80211_SMPS_OFF;
3196                 else
3197                         smps_mode = IEEE80211_SMPS_DYNAMIC;
3198         }
3199
3200         /* send SM PS frame to AP */
3201         err = ieee80211_send_smps_action(sdata, smps_mode,
3202                                          ap, ap,
3203                                          ieee80211_vif_is_mld(&sdata->vif) ?
3204                                          link->link_id : -1);
3205         if (err)
3206                 link->u.mgd.req_smps = old_req;
3207         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
3208                 ieee80211_teardown_tdls_peers(sdata);
3209
3210         return err;
3211 }
3212
3213 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
3214                                     bool enabled, int timeout)
3215 {
3216         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3217         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3218         unsigned int link_id;
3219
3220         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3221                 return -EOPNOTSUPP;
3222
3223         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
3224                 return -EOPNOTSUPP;
3225
3226         if (enabled == sdata->u.mgd.powersave &&
3227             timeout == local->dynamic_ps_forced_timeout)
3228                 return 0;
3229
3230         sdata->u.mgd.powersave = enabled;
3231         local->dynamic_ps_forced_timeout = timeout;
3232
3233         /* no change, but if automatic follow powersave */
3234         for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) {
3235                 struct ieee80211_link_data *link;
3236
3237                 link = sdata_dereference(sdata->link[link_id], sdata);
3238
3239                 if (!link)
3240                         continue;
3241                 __ieee80211_request_smps_mgd(sdata, link,
3242                                              link->u.mgd.req_smps);
3243         }
3244
3245         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
3246                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
3247
3248         ieee80211_recalc_ps(local);
3249         ieee80211_recalc_ps_vif(sdata);
3250         ieee80211_check_fast_rx_iface(sdata);
3251
3252         return 0;
3253 }
3254
3255 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
3256                                          struct net_device *dev,
3257                                          s32 rssi_thold, u32 rssi_hyst)
3258 {
3259         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3260         struct ieee80211_vif *vif = &sdata->vif;
3261         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3262
3263         if (rssi_thold == bss_conf->cqm_rssi_thold &&
3264             rssi_hyst == bss_conf->cqm_rssi_hyst)
3265                 return 0;
3266
3267         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
3268             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
3269                 return -EOPNOTSUPP;
3270
3271         bss_conf->cqm_rssi_thold = rssi_thold;
3272         bss_conf->cqm_rssi_hyst = rssi_hyst;
3273         bss_conf->cqm_rssi_low = 0;
3274         bss_conf->cqm_rssi_high = 0;
3275         sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3276
3277         /* tell the driver upon association, unless already associated */
3278         if (sdata->u.mgd.associated &&
3279             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3280                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3281                                                   BSS_CHANGED_CQM);
3282
3283         return 0;
3284 }
3285
3286 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
3287                                                struct net_device *dev,
3288                                                s32 rssi_low, s32 rssi_high)
3289 {
3290         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3291         struct ieee80211_vif *vif = &sdata->vif;
3292         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
3293
3294         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
3295                 return -EOPNOTSUPP;
3296
3297         bss_conf->cqm_rssi_low = rssi_low;
3298         bss_conf->cqm_rssi_high = rssi_high;
3299         bss_conf->cqm_rssi_thold = 0;
3300         bss_conf->cqm_rssi_hyst = 0;
3301         sdata->deflink.u.mgd.last_cqm_event_signal = 0;
3302
3303         /* tell the driver upon association, unless already associated */
3304         if (sdata->u.mgd.associated &&
3305             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
3306                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3307                                                   BSS_CHANGED_CQM);
3308
3309         return 0;
3310 }
3311
3312 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
3313                                       struct net_device *dev,
3314                                       unsigned int link_id,
3315                                       const u8 *addr,
3316                                       const struct cfg80211_bitrate_mask *mask)
3317 {
3318         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3319         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
3320         int i, ret;
3321
3322         if (!ieee80211_sdata_running(sdata))
3323                 return -ENETDOWN;
3324
3325         /*
3326          * If active validate the setting and reject it if it doesn't leave
3327          * at least one basic rate usable, since we really have to be able
3328          * to send something, and if we're an AP we have to be able to do
3329          * so at a basic rate so that all clients can receive it.
3330          */
3331         if (rcu_access_pointer(sdata->vif.bss_conf.chanctx_conf) &&
3332             sdata->vif.bss_conf.chandef.chan) {
3333                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
3334                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
3335
3336                 if (!(mask->control[band].legacy & basic_rates))
3337                         return -EINVAL;
3338         }
3339
3340         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
3341                 ret = drv_set_bitrate_mask(local, sdata, mask);
3342                 if (ret)
3343                         return ret;
3344         }
3345
3346         for (i = 0; i < NUM_NL80211_BANDS; i++) {
3347                 struct ieee80211_supported_band *sband = wiphy->bands[i];
3348                 int j;
3349
3350                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
3351                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
3352                        sizeof(mask->control[i].ht_mcs));
3353                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
3354                        mask->control[i].vht_mcs,
3355                        sizeof(mask->control[i].vht_mcs));
3356
3357                 sdata->rc_has_mcs_mask[i] = false;
3358                 sdata->rc_has_vht_mcs_mask[i] = false;
3359                 if (!sband)
3360                         continue;
3361
3362                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3363                         if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3364                                 sdata->rc_has_mcs_mask[i] = true;
3365                                 break;
3366                         }
3367                 }
3368
3369                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3370                         if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3371                                 sdata->rc_has_vht_mcs_mask[i] = true;
3372                                 break;
3373                         }
3374                 }
3375         }
3376
3377         return 0;
3378 }
3379
3380 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3381                                            struct net_device *dev,
3382                                            struct cfg80211_chan_def *chandef,
3383                                            u32 cac_time_ms)
3384 {
3385         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3386         struct ieee80211_local *local = sdata->local;
3387         int err;
3388
3389         lockdep_assert_wiphy(local->hw.wiphy);
3390
3391         if (!list_empty(&local->roc_list) || local->scanning) {
3392                 err = -EBUSY;
3393                 goto out_unlock;
3394         }
3395
3396         /* whatever, but channel contexts should not complain about that one */
3397         sdata->deflink.smps_mode = IEEE80211_SMPS_OFF;
3398         sdata->deflink.needed_rx_chains = local->rx_chains;
3399
3400         err = ieee80211_link_use_channel(&sdata->deflink, chandef,
3401                                          IEEE80211_CHANCTX_SHARED);
3402         if (err)
3403                 goto out_unlock;
3404
3405         wiphy_delayed_work_queue(wiphy, &sdata->deflink.dfs_cac_timer_work,
3406                                  msecs_to_jiffies(cac_time_ms));
3407
3408  out_unlock:
3409         return err;
3410 }
3411
3412 static void ieee80211_end_cac(struct wiphy *wiphy,
3413                               struct net_device *dev)
3414 {
3415         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3416         struct ieee80211_local *local = sdata->local;
3417
3418         lockdep_assert_wiphy(local->hw.wiphy);
3419
3420         list_for_each_entry(sdata, &local->interfaces, list) {
3421                 /* it might be waiting for the local->mtx, but then
3422                  * by the time it gets it, sdata->wdev.cac_started
3423                  * will no longer be true
3424                  */
3425                 wiphy_delayed_work_cancel(wiphy,
3426                                           &sdata->deflink.dfs_cac_timer_work);
3427
3428                 if (sdata->wdev.cac_started) {
3429                         ieee80211_link_release_channel(&sdata->deflink);
3430                         sdata->wdev.cac_started = false;
3431                 }
3432         }
3433 }
3434
3435 static struct cfg80211_beacon_data *
3436 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3437 {
3438         struct cfg80211_beacon_data *new_beacon;
3439         u8 *pos;
3440         int len;
3441
3442         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3443               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3444               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3445
3446         if (beacon->mbssid_ies)
3447                 len += ieee80211_get_mbssid_beacon_len(beacon->mbssid_ies,
3448                                                        beacon->rnr_ies,
3449                                                        beacon->mbssid_ies->cnt);
3450
3451         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3452         if (!new_beacon)
3453                 return NULL;
3454
3455         if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3456                 new_beacon->mbssid_ies =
3457                         kzalloc(struct_size(new_beacon->mbssid_ies,
3458                                             elem, beacon->mbssid_ies->cnt),
3459                                 GFP_KERNEL);
3460                 if (!new_beacon->mbssid_ies) {
3461                         kfree(new_beacon);
3462                         return NULL;
3463                 }
3464
3465                 if (beacon->rnr_ies && beacon->rnr_ies->cnt) {
3466                         new_beacon->rnr_ies =
3467                                 kzalloc(struct_size(new_beacon->rnr_ies,
3468                                                     elem, beacon->rnr_ies->cnt),
3469                                         GFP_KERNEL);
3470                         if (!new_beacon->rnr_ies) {
3471                                 kfree(new_beacon->mbssid_ies);
3472                                 kfree(new_beacon);
3473                                 return NULL;
3474                         }
3475                 }
3476         }
3477
3478         pos = (u8 *)(new_beacon + 1);
3479         if (beacon->head_len) {
3480                 new_beacon->head_len = beacon->head_len;
3481                 new_beacon->head = pos;
3482                 memcpy(pos, beacon->head, beacon->head_len);
3483                 pos += beacon->head_len;
3484         }
3485         if (beacon->tail_len) {
3486                 new_beacon->tail_len = beacon->tail_len;
3487                 new_beacon->tail = pos;
3488                 memcpy(pos, beacon->tail, beacon->tail_len);
3489                 pos += beacon->tail_len;
3490         }
3491         if (beacon->beacon_ies_len) {
3492                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3493                 new_beacon->beacon_ies = pos;
3494                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3495                 pos += beacon->beacon_ies_len;
3496         }
3497         if (beacon->proberesp_ies_len) {
3498                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3499                 new_beacon->proberesp_ies = pos;
3500                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3501                 pos += beacon->proberesp_ies_len;
3502         }
3503         if (beacon->assocresp_ies_len) {
3504                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3505                 new_beacon->assocresp_ies = pos;
3506                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3507                 pos += beacon->assocresp_ies_len;
3508         }
3509         if (beacon->probe_resp_len) {
3510                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3511                 new_beacon->probe_resp = pos;
3512                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3513                 pos += beacon->probe_resp_len;
3514         }
3515         if (beacon->mbssid_ies && beacon->mbssid_ies->cnt) {
3516                 pos += ieee80211_copy_mbssid_beacon(pos,
3517                                                     new_beacon->mbssid_ies,
3518                                                     beacon->mbssid_ies);
3519                 if (beacon->rnr_ies && beacon->rnr_ies->cnt)
3520                         pos += ieee80211_copy_rnr_beacon(pos,
3521                                                          new_beacon->rnr_ies,
3522                                                          beacon->rnr_ies);
3523         }
3524
3525         /* might copy -1, meaning no changes requested */
3526         new_beacon->ftm_responder = beacon->ftm_responder;
3527         if (beacon->lci) {
3528                 new_beacon->lci_len = beacon->lci_len;
3529                 new_beacon->lci = pos;
3530                 memcpy(pos, beacon->lci, beacon->lci_len);
3531                 pos += beacon->lci_len;
3532         }
3533         if (beacon->civicloc) {
3534                 new_beacon->civicloc_len = beacon->civicloc_len;
3535                 new_beacon->civicloc = pos;
3536                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3537                 pos += beacon->civicloc_len;
3538         }
3539
3540         return new_beacon;
3541 }
3542
3543 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3544 {
3545         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3546         struct ieee80211_local *local = sdata->local;
3547
3548         rcu_read_lock();
3549
3550         if (vif->mbssid_tx_vif == vif) {
3551                 /* Trigger ieee80211_csa_finish() on the non-transmitting
3552                  * interfaces when channel switch is received on
3553                  * transmitting interface
3554                  */
3555                 struct ieee80211_sub_if_data *iter;
3556
3557                 list_for_each_entry_rcu(iter, &local->interfaces, list) {
3558                         if (!ieee80211_sdata_running(iter))
3559                                 continue;
3560
3561                         if (iter == sdata || iter->vif.mbssid_tx_vif != vif)
3562                                 continue;
3563
3564                         wiphy_work_queue(iter->local->hw.wiphy,
3565                                          &iter->deflink.csa_finalize_work);
3566                 }
3567         }
3568         wiphy_work_queue(local->hw.wiphy, &sdata->deflink.csa_finalize_work);
3569
3570         rcu_read_unlock();
3571 }
3572 EXPORT_SYMBOL(ieee80211_csa_finish);
3573
3574 void ieee80211_channel_switch_disconnect(struct ieee80211_vif *vif, bool block_tx)
3575 {
3576         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3577         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3578         struct ieee80211_local *local = sdata->local;
3579
3580         sdata->deflink.csa_block_tx = block_tx;
3581         sdata_info(sdata, "channel switch failed, disconnecting\n");
3582         wiphy_work_queue(local->hw.wiphy, &ifmgd->csa_connection_drop_work);
3583 }
3584 EXPORT_SYMBOL(ieee80211_channel_switch_disconnect);
3585
3586 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3587                                           u64 *changed)
3588 {
3589         int err;
3590
3591         switch (sdata->vif.type) {
3592         case NL80211_IFTYPE_AP:
3593                 if (!sdata->deflink.u.ap.next_beacon)
3594                         return -EINVAL;
3595
3596                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3597                                               sdata->deflink.u.ap.next_beacon,
3598                                               NULL, NULL, changed);
3599                 ieee80211_free_next_beacon(&sdata->deflink);
3600
3601                 if (err < 0)
3602                         return err;
3603                 break;
3604         case NL80211_IFTYPE_ADHOC:
3605                 err = ieee80211_ibss_finish_csa(sdata, changed);
3606                 if (err < 0)
3607                         return err;
3608                 break;
3609 #ifdef CONFIG_MAC80211_MESH
3610         case NL80211_IFTYPE_MESH_POINT:
3611                 err = ieee80211_mesh_finish_csa(sdata, changed);
3612                 if (err < 0)
3613                         return err;
3614                 break;
3615 #endif
3616         default:
3617                 WARN_ON(1);
3618                 return -EINVAL;
3619         }
3620
3621         return 0;
3622 }
3623
3624 static int __ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3625 {
3626         struct ieee80211_sub_if_data *sdata = link_data->sdata;
3627         struct ieee80211_local *local = sdata->local;
3628         u64 changed = 0;
3629         int err;
3630
3631         lockdep_assert_wiphy(local->hw.wiphy);
3632
3633         /*
3634          * using reservation isn't immediate as it may be deferred until later
3635          * with multi-vif. once reservation is complete it will re-schedule the
3636          * work with no reserved_chanctx so verify chandef to check if it
3637          * completed successfully
3638          */
3639
3640         if (link_data->reserved_chanctx) {
3641                 /*
3642                  * with multi-vif csa driver may call ieee80211_csa_finish()
3643                  * many times while waiting for other interfaces to use their
3644                  * reservations
3645                  */
3646                 if (link_data->reserved_ready)
3647                         return 0;
3648
3649                 return ieee80211_link_use_reserved_context(&sdata->deflink);
3650         }
3651
3652         if (!cfg80211_chandef_identical(&link_data->conf->chandef,
3653                                         &link_data->csa_chandef))
3654                 return -EINVAL;
3655
3656         sdata->vif.bss_conf.csa_active = false;
3657
3658         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3659         if (err)
3660                 return err;
3661
3662         if (sdata->vif.bss_conf.eht_puncturing != sdata->vif.bss_conf.csa_punct_bitmap) {
3663                 sdata->vif.bss_conf.eht_puncturing =
3664                                         sdata->vif.bss_conf.csa_punct_bitmap;
3665                 changed |= BSS_CHANGED_EHT_PUNCTURING;
3666         }
3667
3668         ieee80211_link_info_change_notify(sdata, link_data, changed);
3669
3670         if (link_data->csa_block_tx) {
3671                 ieee80211_wake_vif_queues(local, sdata,
3672                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3673                 link_data->csa_block_tx = false;
3674         }
3675
3676         err = drv_post_channel_switch(link_data);
3677         if (err)
3678                 return err;
3679
3680         cfg80211_ch_switch_notify(sdata->dev, &link_data->csa_chandef,
3681                                   link_data->link_id,
3682                                   link_data->conf->eht_puncturing);
3683
3684         return 0;
3685 }
3686
3687 static void ieee80211_csa_finalize(struct ieee80211_link_data *link_data)
3688 {
3689         struct ieee80211_sub_if_data *sdata = link_data->sdata;
3690
3691         if (__ieee80211_csa_finalize(link_data)) {
3692                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3693                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3694                                     GFP_KERNEL);
3695         }
3696 }
3697
3698 void ieee80211_csa_finalize_work(struct wiphy *wiphy, struct wiphy_work *work)
3699 {
3700         struct ieee80211_link_data *link =
3701                 container_of(work, struct ieee80211_link_data, csa_finalize_work);
3702         struct ieee80211_sub_if_data *sdata = link->sdata;
3703         struct ieee80211_local *local = sdata->local;
3704
3705         lockdep_assert_wiphy(local->hw.wiphy);
3706
3707         /* AP might have been stopped while waiting for the lock. */
3708         if (!link->conf->csa_active)
3709                 return;
3710
3711         if (!ieee80211_sdata_running(sdata))
3712                 return;
3713
3714         ieee80211_csa_finalize(link);
3715 }
3716
3717 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3718                                     struct cfg80211_csa_settings *params,
3719                                     u64 *changed)
3720 {
3721         struct ieee80211_csa_settings csa = {};
3722         int err;
3723
3724         switch (sdata->vif.type) {
3725         case NL80211_IFTYPE_AP:
3726                 sdata->deflink.u.ap.next_beacon =
3727                         cfg80211_beacon_dup(&params->beacon_after);
3728                 if (!sdata->deflink.u.ap.next_beacon)
3729                         return -ENOMEM;
3730
3731                 /*
3732                  * With a count of 0, we don't have to wait for any
3733                  * TBTT before switching, so complete the CSA
3734                  * immediately.  In theory, with a count == 1 we
3735                  * should delay the switch until just before the next
3736                  * TBTT, but that would complicate things so we switch
3737                  * immediately too.  If we would delay the switch
3738                  * until the next TBTT, we would have to set the probe
3739                  * response here.
3740                  *
3741                  * TODO: A channel switch with count <= 1 without
3742                  * sending a CSA action frame is kind of useless,
3743                  * because the clients won't know we're changing
3744                  * channels.  The action frame must be implemented
3745                  * either here or in the userspace.
3746                  */
3747                 if (params->count <= 1)
3748                         break;
3749
3750                 if ((params->n_counter_offsets_beacon >
3751                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3752                     (params->n_counter_offsets_presp >
3753                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM)) {
3754                         ieee80211_free_next_beacon(&sdata->deflink);
3755                         return -EINVAL;
3756                 }
3757
3758                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3759                 csa.counter_offsets_presp = params->counter_offsets_presp;
3760                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3761                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3762                 csa.count = params->count;
3763
3764                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
3765                                               &params->beacon_csa, &csa,
3766                                               NULL, changed);
3767                 if (err < 0) {
3768                         ieee80211_free_next_beacon(&sdata->deflink);
3769                         return err;
3770                 }
3771
3772                 break;
3773         case NL80211_IFTYPE_ADHOC:
3774                 if (!sdata->vif.cfg.ibss_joined)
3775                         return -EINVAL;
3776
3777                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3778                         return -EINVAL;
3779
3780                 switch (params->chandef.width) {
3781                 case NL80211_CHAN_WIDTH_40:
3782                         if (cfg80211_get_chandef_type(&params->chandef) !=
3783                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3784                                 return -EINVAL;
3785                         break;
3786                 case NL80211_CHAN_WIDTH_5:
3787                 case NL80211_CHAN_WIDTH_10:
3788                 case NL80211_CHAN_WIDTH_20_NOHT:
3789                 case NL80211_CHAN_WIDTH_20:
3790                         break;
3791                 default:
3792                         return -EINVAL;
3793                 }
3794
3795                 /* changes into another band are not supported */
3796                 if (sdata->u.ibss.chandef.chan->band !=
3797                     params->chandef.chan->band)
3798                         return -EINVAL;
3799
3800                 /* see comments in the NL80211_IFTYPE_AP block */
3801                 if (params->count > 1) {
3802                         err = ieee80211_ibss_csa_beacon(sdata, params, changed);
3803                         if (err < 0)
3804                                 return err;
3805                 }
3806
3807                 ieee80211_send_action_csa(sdata, params);
3808
3809                 break;
3810 #ifdef CONFIG_MAC80211_MESH
3811         case NL80211_IFTYPE_MESH_POINT: {
3812                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3813
3814                 /* changes into another band are not supported */
3815                 if (sdata->vif.bss_conf.chandef.chan->band !=
3816                     params->chandef.chan->band)
3817                         return -EINVAL;
3818
3819                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3820                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3821                         if (!ifmsh->pre_value)
3822                                 ifmsh->pre_value = 1;
3823                         else
3824                                 ifmsh->pre_value++;
3825                 }
3826
3827                 /* see comments in the NL80211_IFTYPE_AP block */
3828                 if (params->count > 1) {
3829                         err = ieee80211_mesh_csa_beacon(sdata, params, changed);
3830                         if (err < 0) {
3831                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3832                                 return err;
3833                         }
3834                 }
3835
3836                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3837                         ieee80211_send_action_csa(sdata, params);
3838
3839                 break;
3840                 }
3841 #endif
3842         default:
3843                 return -EOPNOTSUPP;
3844         }
3845
3846         return 0;
3847 }
3848
3849 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data  *sdata)
3850 {
3851         sdata->vif.bss_conf.color_change_active = false;
3852
3853         ieee80211_free_next_beacon(&sdata->deflink);
3854
3855         cfg80211_color_change_aborted_notify(sdata->dev);
3856 }
3857
3858 static int
3859 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3860                            struct cfg80211_csa_settings *params)
3861 {
3862         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3863         struct ieee80211_local *local = sdata->local;
3864         struct ieee80211_channel_switch ch_switch;
3865         struct ieee80211_chanctx_conf *conf;
3866         struct ieee80211_chanctx *chanctx;
3867         u64 changed = 0;
3868         int err;
3869
3870         lockdep_assert_wiphy(local->hw.wiphy);
3871
3872         if (!list_empty(&local->roc_list) || local->scanning)
3873                 return -EBUSY;
3874
3875         if (sdata->wdev.cac_started)
3876                 return -EBUSY;
3877
3878         if (cfg80211_chandef_identical(&params->chandef,
3879                                        &sdata->vif.bss_conf.chandef))
3880                 return -EINVAL;
3881
3882         /* don't allow another channel switch if one is already active. */
3883         if (sdata->vif.bss_conf.csa_active)
3884                 return -EBUSY;
3885
3886         conf = rcu_dereference_protected(sdata->vif.bss_conf.chanctx_conf,
3887                                          lockdep_is_held(&local->hw.wiphy->mtx));
3888         if (!conf) {
3889                 err = -EBUSY;
3890                 goto out;
3891         }
3892
3893         if (params->chandef.chan->freq_offset) {
3894                 /* this may work, but is untested */
3895                 err = -EOPNOTSUPP;
3896                 goto out;
3897         }
3898
3899         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3900
3901         ch_switch.timestamp = 0;
3902         ch_switch.device_timestamp = 0;
3903         ch_switch.block_tx = params->block_tx;
3904         ch_switch.chandef = params->chandef;
3905         ch_switch.count = params->count;
3906
3907         err = drv_pre_channel_switch(sdata, &ch_switch);
3908         if (err)
3909                 goto out;
3910
3911         err = ieee80211_link_reserve_chanctx(&sdata->deflink, &params->chandef,
3912                                              chanctx->mode,
3913                                              params->radar_required);
3914         if (err)
3915                 goto out;
3916
3917         /* if reservation is invalid then this will fail */
3918         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3919         if (err) {
3920                 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3921                 goto out;
3922         }
3923
3924         /* if there is a color change in progress, abort it */
3925         if (sdata->vif.bss_conf.color_change_active)
3926                 ieee80211_color_change_abort(sdata);
3927
3928         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3929         if (err) {
3930                 ieee80211_link_unreserve_chanctx(&sdata->deflink);
3931                 goto out;
3932         }
3933
3934         if (params->punct_bitmap && !sdata->vif.bss_conf.eht_support)
3935                 goto out;
3936
3937         sdata->deflink.csa_chandef = params->chandef;
3938         sdata->deflink.csa_block_tx = params->block_tx;
3939         sdata->vif.bss_conf.csa_active = true;
3940         sdata->vif.bss_conf.csa_punct_bitmap = params->punct_bitmap;
3941
3942         if (sdata->deflink.csa_block_tx)
3943                 ieee80211_stop_vif_queues(local, sdata,
3944                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3945
3946         cfg80211_ch_switch_started_notify(sdata->dev,
3947                                           &sdata->deflink.csa_chandef, 0,
3948                                           params->count, params->block_tx,
3949                                           sdata->vif.bss_conf.csa_punct_bitmap);
3950
3951         if (changed) {
3952                 ieee80211_link_info_change_notify(sdata, &sdata->deflink,
3953                                                   changed);
3954                 drv_channel_switch_beacon(sdata, &params->chandef);
3955         } else {
3956                 /* if the beacon didn't change, we can finalize immediately */
3957                 ieee80211_csa_finalize(&sdata->deflink);
3958         }
3959
3960 out:
3961         return err;
3962 }
3963
3964 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3965                              struct cfg80211_csa_settings *params)
3966 {
3967         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3968         struct ieee80211_local *local = sdata->local;
3969
3970         lockdep_assert_wiphy(local->hw.wiphy);
3971
3972         return __ieee80211_channel_switch(wiphy, dev, params);
3973 }
3974
3975 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3976 {
3977         lockdep_assert_wiphy(local->hw.wiphy);
3978
3979         local->roc_cookie_counter++;
3980
3981         /* wow, you wrapped 64 bits ... more likely a bug */
3982         if (WARN_ON(local->roc_cookie_counter == 0))
3983                 local->roc_cookie_counter++;
3984
3985         return local->roc_cookie_counter;
3986 }
3987
3988 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3989                              u64 *cookie, gfp_t gfp)
3990 {
3991         unsigned long spin_flags;
3992         struct sk_buff *ack_skb;
3993         int id;
3994
3995         ack_skb = skb_copy(skb, gfp);
3996         if (!ack_skb)
3997                 return -ENOMEM;
3998
3999         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
4000         id = idr_alloc(&local->ack_status_frames, ack_skb,
4001                        1, 0x2000, GFP_ATOMIC);
4002         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
4003
4004         if (id < 0) {
4005                 kfree_skb(ack_skb);
4006                 return -ENOMEM;
4007         }
4008
4009         IEEE80211_SKB_CB(skb)->status_data_idr = 1;
4010         IEEE80211_SKB_CB(skb)->status_data = id;
4011
4012         *cookie = ieee80211_mgmt_tx_cookie(local);
4013         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
4014
4015         return 0;
4016 }
4017
4018 static void
4019 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
4020                                           struct wireless_dev *wdev,
4021                                           struct mgmt_frame_regs *upd)
4022 {
4023         struct ieee80211_local *local = wiphy_priv(wiphy);
4024         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4025         u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
4026         u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
4027         bool global_change, intf_change;
4028
4029         global_change =
4030                 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
4031                 (local->rx_mcast_action_reg !=
4032                  !!(upd->global_mcast_stypes & action_mask));
4033         local->probe_req_reg = upd->global_stypes & preq_mask;
4034         local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
4035
4036         intf_change = (sdata->vif.probe_req_reg !=
4037                        !!(upd->interface_stypes & preq_mask)) ||
4038                 (sdata->vif.rx_mcast_action_reg !=
4039                  !!(upd->interface_mcast_stypes & action_mask));
4040         sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
4041         sdata->vif.rx_mcast_action_reg =
4042                 upd->interface_mcast_stypes & action_mask;
4043
4044         if (!local->open_count)
4045                 return;
4046
4047         if (intf_change && ieee80211_sdata_running(sdata))
4048                 drv_config_iface_filter(local, sdata,
4049                                         sdata->vif.probe_req_reg ?
4050                                                 FIF_PROBE_REQ : 0,
4051                                         FIF_PROBE_REQ);
4052
4053         if (global_change)
4054                 ieee80211_configure_filter(local);
4055 }
4056
4057 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
4058 {
4059         struct ieee80211_local *local = wiphy_priv(wiphy);
4060         int ret;
4061
4062         if (local->started)
4063                 return -EOPNOTSUPP;
4064
4065         ret = drv_set_antenna(local, tx_ant, rx_ant);
4066         if (ret)
4067                 return ret;
4068
4069         local->rx_chains = hweight8(rx_ant);
4070         return 0;
4071 }
4072
4073 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
4074 {
4075         struct ieee80211_local *local = wiphy_priv(wiphy);
4076
4077         return drv_get_antenna(local, tx_ant, rx_ant);
4078 }
4079
4080 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
4081                                     struct net_device *dev,
4082                                     struct cfg80211_gtk_rekey_data *data)
4083 {
4084         struct ieee80211_local *local = wiphy_priv(wiphy);
4085         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4086
4087         if (!local->ops->set_rekey_data)
4088                 return -EOPNOTSUPP;
4089
4090         drv_set_rekey_data(local, sdata, data);
4091
4092         return 0;
4093 }
4094
4095 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
4096                                   const u8 *peer, u64 *cookie)
4097 {
4098         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4099         struct ieee80211_local *local = sdata->local;
4100         struct ieee80211_qos_hdr *nullfunc;
4101         struct sk_buff *skb;
4102         int size = sizeof(*nullfunc);
4103         __le16 fc;
4104         bool qos;
4105         struct ieee80211_tx_info *info;
4106         struct sta_info *sta;
4107         struct ieee80211_chanctx_conf *chanctx_conf;
4108         enum nl80211_band band;
4109         int ret;
4110
4111         /* the lock is needed to assign the cookie later */
4112         lockdep_assert_wiphy(local->hw.wiphy);
4113
4114         rcu_read_lock();
4115         sta = sta_info_get_bss(sdata, peer);
4116         if (!sta) {
4117                 ret = -ENOLINK;
4118                 goto unlock;
4119         }
4120
4121         qos = sta->sta.wme;
4122
4123         chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
4124         if (WARN_ON(!chanctx_conf)) {
4125                 ret = -EINVAL;
4126                 goto unlock;
4127         }
4128         band = chanctx_conf->def.chan->band;
4129
4130         if (qos) {
4131                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4132                                  IEEE80211_STYPE_QOS_NULLFUNC |
4133                                  IEEE80211_FCTL_FROMDS);
4134         } else {
4135                 size -= 2;
4136                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
4137                                  IEEE80211_STYPE_NULLFUNC |
4138                                  IEEE80211_FCTL_FROMDS);
4139         }
4140
4141         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
4142         if (!skb) {
4143                 ret = -ENOMEM;
4144                 goto unlock;
4145         }
4146
4147         skb->dev = dev;
4148
4149         skb_reserve(skb, local->hw.extra_tx_headroom);
4150
4151         nullfunc = skb_put(skb, size);
4152         nullfunc->frame_control = fc;
4153         nullfunc->duration_id = 0;
4154         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
4155         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
4156         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
4157         nullfunc->seq_ctrl = 0;
4158
4159         info = IEEE80211_SKB_CB(skb);
4160
4161         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
4162                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
4163         info->band = band;
4164
4165         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
4166         skb->priority = 7;
4167         if (qos)
4168                 nullfunc->qos_ctrl = cpu_to_le16(7);
4169
4170         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
4171         if (ret) {
4172                 kfree_skb(skb);
4173                 goto unlock;
4174         }
4175
4176         local_bh_disable();
4177         ieee80211_xmit(sdata, sta, skb);
4178         local_bh_enable();
4179
4180         ret = 0;
4181 unlock:
4182         rcu_read_unlock();
4183
4184         return ret;
4185 }
4186
4187 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
4188                                      struct wireless_dev *wdev,
4189                                      unsigned int link_id,
4190                                      struct cfg80211_chan_def *chandef)
4191 {
4192         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4193         struct ieee80211_local *local = wiphy_priv(wiphy);
4194         struct ieee80211_chanctx_conf *chanctx_conf;
4195         struct ieee80211_link_data *link;
4196         int ret = -ENODATA;
4197
4198         rcu_read_lock();
4199         link = rcu_dereference(sdata->link[link_id]);
4200         if (!link) {
4201                 ret = -ENOLINK;
4202                 goto out;
4203         }
4204
4205         chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
4206         if (chanctx_conf) {
4207                 *chandef = link->conf->chandef;
4208                 ret = 0;
4209         } else if (local->open_count > 0 &&
4210                    local->open_count == local->monitors &&
4211                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
4212                 if (local->use_chanctx)
4213                         *chandef = local->monitor_chandef;
4214                 else
4215                         *chandef = local->_oper_chandef;
4216                 ret = 0;
4217         }
4218 out:
4219         rcu_read_unlock();
4220
4221         return ret;
4222 }
4223
4224 #ifdef CONFIG_PM
4225 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
4226 {
4227         drv_set_wakeup(wiphy_priv(wiphy), enabled);
4228 }
4229 #endif
4230
4231 static int ieee80211_set_qos_map(struct wiphy *wiphy,
4232                                  struct net_device *dev,
4233                                  struct cfg80211_qos_map *qos_map)
4234 {
4235         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4236         struct mac80211_qos_map *new_qos_map, *old_qos_map;
4237
4238         if (qos_map) {
4239                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
4240                 if (!new_qos_map)
4241                         return -ENOMEM;
4242                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
4243         } else {
4244                 /* A NULL qos_map was passed to disable QoS mapping */
4245                 new_qos_map = NULL;
4246         }
4247
4248         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
4249         rcu_assign_pointer(sdata->qos_map, new_qos_map);
4250         if (old_qos_map)
4251                 kfree_rcu(old_qos_map, rcu_head);
4252
4253         return 0;
4254 }
4255
4256 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
4257                                       struct net_device *dev,
4258                                       unsigned int link_id,
4259                                       struct cfg80211_chan_def *chandef)
4260 {
4261         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4262         struct ieee80211_link_data *link;
4263         int ret;
4264         u64 changed = 0;
4265
4266         link = sdata_dereference(sdata->link[link_id], sdata);
4267
4268         ret = ieee80211_link_change_bandwidth(link, chandef, &changed);
4269         if (ret == 0)
4270                 ieee80211_link_info_change_notify(sdata, link, changed);
4271
4272         return ret;
4273 }
4274
4275 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4276                                u8 tsid, const u8 *peer, u8 up,
4277                                u16 admitted_time)
4278 {
4279         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4280         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4281         int ac = ieee802_1d_to_ac[up];
4282
4283         if (sdata->vif.type != NL80211_IFTYPE_STATION)
4284                 return -EOPNOTSUPP;
4285
4286         if (!(sdata->wmm_acm & BIT(up)))
4287                 return -EINVAL;
4288
4289         if (ifmgd->tx_tspec[ac].admitted_time)
4290                 return -EBUSY;
4291
4292         if (admitted_time) {
4293                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
4294                 ifmgd->tx_tspec[ac].tsid = tsid;
4295                 ifmgd->tx_tspec[ac].up = up;
4296         }
4297
4298         return 0;
4299 }
4300
4301 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
4302                                u8 tsid, const u8 *peer)
4303 {
4304         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4305         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4306         struct ieee80211_local *local = wiphy_priv(wiphy);
4307         int ac;
4308
4309         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
4310                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
4311
4312                 /* skip unused entries */
4313                 if (!tx_tspec->admitted_time)
4314                         continue;
4315
4316                 if (tx_tspec->tsid != tsid)
4317                         continue;
4318
4319                 /* due to this new packets will be reassigned to non-ACM ACs */
4320                 tx_tspec->up = -1;
4321
4322                 /* Make sure that all packets have been sent to avoid to
4323                  * restore the QoS params on packets that are still on the
4324                  * queues.
4325                  */
4326                 synchronize_net();
4327                 ieee80211_flush_queues(local, sdata, false);
4328
4329                 /* restore the normal QoS parameters
4330                  * (unconditionally to avoid races)
4331                  */
4332                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
4333                 tx_tspec->downgraded = false;
4334                 ieee80211_sta_handle_tspec_ac_params(sdata);
4335
4336                 /* finally clear all the data */
4337                 memset(tx_tspec, 0, sizeof(*tx_tspec));
4338
4339                 return 0;
4340         }
4341
4342         return -ENOENT;
4343 }
4344
4345 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
4346                                    u8 inst_id,
4347                                    enum nl80211_nan_func_term_reason reason,
4348                                    gfp_t gfp)
4349 {
4350         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4351         struct cfg80211_nan_func *func;
4352         u64 cookie;
4353
4354         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4355                 return;
4356
4357         spin_lock_bh(&sdata->u.nan.func_lock);
4358
4359         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
4360         if (WARN_ON(!func)) {
4361                 spin_unlock_bh(&sdata->u.nan.func_lock);
4362                 return;
4363         }
4364
4365         cookie = func->cookie;
4366         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
4367
4368         spin_unlock_bh(&sdata->u.nan.func_lock);
4369
4370         cfg80211_free_nan_func(func);
4371
4372         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
4373                                      reason, cookie, gfp);
4374 }
4375 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
4376
4377 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
4378                               struct cfg80211_nan_match_params *match,
4379                               gfp_t gfp)
4380 {
4381         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4382         struct cfg80211_nan_func *func;
4383
4384         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
4385                 return;
4386
4387         spin_lock_bh(&sdata->u.nan.func_lock);
4388
4389         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
4390         if (WARN_ON(!func)) {
4391                 spin_unlock_bh(&sdata->u.nan.func_lock);
4392                 return;
4393         }
4394         match->cookie = func->cookie;
4395
4396         spin_unlock_bh(&sdata->u.nan.func_lock);
4397
4398         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
4399 }
4400 EXPORT_SYMBOL(ieee80211_nan_func_match);
4401
4402 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
4403                                               struct net_device *dev,
4404                                               const bool enabled)
4405 {
4406         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4407
4408         sdata->u.ap.multicast_to_unicast = enabled;
4409
4410         return 0;
4411 }
4412
4413 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
4414                               struct txq_info *txqi)
4415 {
4416         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
4417                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
4418                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
4419         }
4420
4421         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
4422                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
4423                 txqstats->backlog_packets = txqi->tin.backlog_packets;
4424         }
4425
4426         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
4427                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
4428                 txqstats->flows = txqi->tin.flows;
4429         }
4430
4431         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
4432                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
4433                 txqstats->drops = txqi->cstats.drop_count;
4434         }
4435
4436         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
4437                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
4438                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
4439         }
4440
4441         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
4442                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
4443                 txqstats->overlimit = txqi->tin.overlimit;
4444         }
4445
4446         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
4447                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4448                 txqstats->collisions = txqi->tin.collisions;
4449         }
4450
4451         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4452                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4453                 txqstats->tx_bytes = txqi->tin.tx_bytes;
4454         }
4455
4456         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4457                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4458                 txqstats->tx_packets = txqi->tin.tx_packets;
4459         }
4460 }
4461
4462 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4463                                    struct wireless_dev *wdev,
4464                                    struct cfg80211_txq_stats *txqstats)
4465 {
4466         struct ieee80211_local *local = wiphy_priv(wiphy);
4467         struct ieee80211_sub_if_data *sdata;
4468         int ret = 0;
4469
4470         spin_lock_bh(&local->fq.lock);
4471         rcu_read_lock();
4472
4473         if (wdev) {
4474                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4475                 if (!sdata->vif.txq) {
4476                         ret = 1;
4477                         goto out;
4478                 }
4479                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4480         } else {
4481                 /* phy stats */
4482                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4483                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4484                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4485                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4486                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
4487                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4488                 txqstats->backlog_packets = local->fq.backlog;
4489                 txqstats->backlog_bytes = local->fq.memory_usage;
4490                 txqstats->overlimit = local->fq.overlimit;
4491                 txqstats->overmemory = local->fq.overmemory;
4492                 txqstats->collisions = local->fq.collisions;
4493                 txqstats->max_flows = local->fq.flows_cnt;
4494         }
4495
4496 out:
4497         rcu_read_unlock();
4498         spin_unlock_bh(&local->fq.lock);
4499
4500         return ret;
4501 }
4502
4503 static int
4504 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4505                                   struct net_device *dev,
4506                                   struct cfg80211_ftm_responder_stats *ftm_stats)
4507 {
4508         struct ieee80211_local *local = wiphy_priv(wiphy);
4509         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4510
4511         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4512 }
4513
4514 static int
4515 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4516                      struct cfg80211_pmsr_request *request)
4517 {
4518         struct ieee80211_local *local = wiphy_priv(wiphy);
4519         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4520
4521         return drv_start_pmsr(local, sdata, request);
4522 }
4523
4524 static void
4525 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4526                      struct cfg80211_pmsr_request *request)
4527 {
4528         struct ieee80211_local *local = wiphy_priv(wiphy);
4529         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4530
4531         return drv_abort_pmsr(local, sdata, request);
4532 }
4533
4534 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4535                                     struct net_device *dev,
4536                                     struct cfg80211_tid_config *tid_conf)
4537 {
4538         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4539         struct sta_info *sta;
4540
4541         lockdep_assert_wiphy(sdata->local->hw.wiphy);
4542
4543         if (!sdata->local->ops->set_tid_config)
4544                 return -EOPNOTSUPP;
4545
4546         if (!tid_conf->peer)
4547                 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4548
4549         sta = sta_info_get_bss(sdata, tid_conf->peer);
4550         if (!sta)
4551                 return -ENOENT;
4552
4553         return drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4554 }
4555
4556 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4557                                       struct net_device *dev,
4558                                       const u8 *peer, u8 tids)
4559 {
4560         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4561         struct sta_info *sta;
4562
4563         lockdep_assert_wiphy(sdata->local->hw.wiphy);
4564
4565         if (!sdata->local->ops->reset_tid_config)
4566                 return -EOPNOTSUPP;
4567
4568         if (!peer)
4569                 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4570
4571         sta = sta_info_get_bss(sdata, peer);
4572         if (!sta)
4573                 return -ENOENT;
4574
4575         return drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4576 }
4577
4578 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4579                                    struct cfg80211_sar_specs *sar)
4580 {
4581         struct ieee80211_local *local = wiphy_priv(wiphy);
4582
4583         if (!local->ops->set_sar_specs)
4584                 return -EOPNOTSUPP;
4585
4586         return local->ops->set_sar_specs(&local->hw, sar);
4587 }
4588
4589 static int
4590 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4591                                         u64 *changed)
4592 {
4593         switch (sdata->vif.type) {
4594         case NL80211_IFTYPE_AP: {
4595                 int ret;
4596
4597                 if (!sdata->deflink.u.ap.next_beacon)
4598                         return -EINVAL;
4599
4600                 ret = ieee80211_assign_beacon(sdata, &sdata->deflink,
4601                                               sdata->deflink.u.ap.next_beacon,
4602                                               NULL, NULL, changed);
4603                 ieee80211_free_next_beacon(&sdata->deflink);
4604
4605                 if (ret < 0)
4606                         return ret;
4607
4608                 break;
4609         }
4610         default:
4611                 WARN_ON_ONCE(1);
4612                 return -EINVAL;
4613         }
4614
4615         return 0;
4616 }
4617
4618 static int
4619 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4620                                   struct cfg80211_color_change_settings *params,
4621                                   u64 *changed)
4622 {
4623         struct ieee80211_color_change_settings color_change = {};
4624         int err;
4625
4626         switch (sdata->vif.type) {
4627         case NL80211_IFTYPE_AP:
4628                 sdata->deflink.u.ap.next_beacon =
4629                         cfg80211_beacon_dup(&params->beacon_next);
4630                 if (!sdata->deflink.u.ap.next_beacon)
4631                         return -ENOMEM;
4632
4633                 if (params->count <= 1)
4634                         break;
4635
4636                 color_change.counter_offset_beacon =
4637                         params->counter_offset_beacon;
4638                 color_change.counter_offset_presp =
4639                         params->counter_offset_presp;
4640                 color_change.count = params->count;
4641
4642                 err = ieee80211_assign_beacon(sdata, &sdata->deflink,
4643                                               &params->beacon_color_change,
4644                                               NULL, &color_change, changed);
4645                 if (err < 0) {
4646                         ieee80211_free_next_beacon(&sdata->deflink);
4647                         return err;
4648                 }
4649                 break;
4650         default:
4651                 return -EOPNOTSUPP;
4652         }
4653
4654         return 0;
4655 }
4656
4657 static void
4658 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
4659                                          u8 color, int enable, u64 changed)
4660 {
4661         lockdep_assert_wiphy(sdata->local->hw.wiphy);
4662
4663         sdata->vif.bss_conf.he_bss_color.color = color;
4664         sdata->vif.bss_conf.he_bss_color.enabled = enable;
4665         changed |= BSS_CHANGED_HE_BSS_COLOR;
4666
4667         ieee80211_link_info_change_notify(sdata, &sdata->deflink, changed);
4668
4669         if (!sdata->vif.bss_conf.nontransmitted && sdata->vif.mbssid_tx_vif) {
4670                 struct ieee80211_sub_if_data *child;
4671
4672                 list_for_each_entry(child, &sdata->local->interfaces, list) {
4673                         if (child != sdata && child->vif.mbssid_tx_vif == &sdata->vif) {
4674                                 child->vif.bss_conf.he_bss_color.color = color;
4675                                 child->vif.bss_conf.he_bss_color.enabled = enable;
4676                                 ieee80211_link_info_change_notify(child,
4677                                                                   &child->deflink,
4678                                                                   BSS_CHANGED_HE_BSS_COLOR);
4679                         }
4680                 }
4681         }
4682 }
4683
4684 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
4685 {
4686         struct ieee80211_local *local = sdata->local;
4687         u64 changed = 0;
4688         int err;
4689
4690         lockdep_assert_wiphy(local->hw.wiphy);
4691
4692         sdata->vif.bss_conf.color_change_active = false;
4693
4694         err = ieee80211_set_after_color_change_beacon(sdata, &changed);
4695         if (err) {
4696                 cfg80211_color_change_aborted_notify(sdata->dev);
4697                 return err;
4698         }
4699
4700         ieee80211_color_change_bss_config_notify(sdata,
4701                                                  sdata->vif.bss_conf.color_change_color,
4702                                                  1, changed);
4703         cfg80211_color_change_notify(sdata->dev);
4704
4705         return 0;
4706 }
4707
4708 void ieee80211_color_change_finalize_work(struct wiphy *wiphy,
4709                                           struct wiphy_work *work)
4710 {
4711         struct ieee80211_sub_if_data *sdata =
4712                 container_of(work, struct ieee80211_sub_if_data,
4713                              deflink.color_change_finalize_work);
4714         struct ieee80211_local *local = sdata->local;
4715
4716         lockdep_assert_wiphy(local->hw.wiphy);
4717
4718         /* AP might have been stopped while waiting for the lock. */
4719         if (!sdata->vif.bss_conf.color_change_active)
4720                 return;
4721
4722         if (!ieee80211_sdata_running(sdata))
4723                 return;
4724
4725         ieee80211_color_change_finalize(sdata);
4726 }
4727
4728 void ieee80211_color_collision_detection_work(struct work_struct *work)
4729 {
4730         struct delayed_work *delayed_work = to_delayed_work(work);
4731         struct ieee80211_link_data *link =
4732                 container_of(delayed_work, struct ieee80211_link_data,
4733                              color_collision_detect_work);
4734         struct ieee80211_sub_if_data *sdata = link->sdata;
4735
4736         cfg80211_obss_color_collision_notify(sdata->dev, link->color_bitmap);
4737 }
4738
4739 void ieee80211_color_change_finish(struct ieee80211_vif *vif)
4740 {
4741         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4742
4743         wiphy_work_queue(sdata->local->hw.wiphy,
4744                          &sdata->deflink.color_change_finalize_work);
4745 }
4746 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4747
4748 void
4749 ieee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4750                                        u64 color_bitmap, gfp_t gfp)
4751 {
4752         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4753         struct ieee80211_link_data *link = &sdata->deflink;
4754
4755         if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active)
4756                 return;
4757
4758         if (delayed_work_pending(&link->color_collision_detect_work))
4759                 return;
4760
4761         link->color_bitmap = color_bitmap;
4762         /* queue the color collision detection event every 500 ms in order to
4763          * avoid sending too much netlink messages to userspace.
4764          */
4765         ieee80211_queue_delayed_work(&sdata->local->hw,
4766                                      &link->color_collision_detect_work,
4767                                      msecs_to_jiffies(500));
4768 }
4769 EXPORT_SYMBOL_GPL(ieee80211_obss_color_collision_notify);
4770
4771 static int
4772 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4773                        struct cfg80211_color_change_settings *params)
4774 {
4775         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4776         struct ieee80211_local *local = sdata->local;
4777         u64 changed = 0;
4778         int err;
4779
4780         lockdep_assert_wiphy(local->hw.wiphy);
4781
4782         if (sdata->vif.bss_conf.nontransmitted)
4783                 return -EINVAL;
4784
4785         /* don't allow another color change if one is already active or if csa
4786          * is active
4787          */
4788         if (sdata->vif.bss_conf.color_change_active || sdata->vif.bss_conf.csa_active) {
4789                 err = -EBUSY;
4790                 goto out;
4791         }
4792
4793         err = ieee80211_set_color_change_beacon(sdata, params, &changed);
4794         if (err)
4795                 goto out;
4796
4797         sdata->vif.bss_conf.color_change_active = true;
4798         sdata->vif.bss_conf.color_change_color = params->color;
4799
4800         cfg80211_color_change_started_notify(sdata->dev, params->count);
4801
4802         if (changed)
4803                 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed);
4804         else
4805                 /* if the beacon didn't change, we can finalize immediately */
4806                 ieee80211_color_change_finalize(sdata);
4807
4808 out:
4809
4810         return err;
4811 }
4812
4813 static int
4814 ieee80211_set_radar_background(struct wiphy *wiphy,
4815                                struct cfg80211_chan_def *chandef)
4816 {
4817         struct ieee80211_local *local = wiphy_priv(wiphy);
4818
4819         if (!local->ops->set_radar_background)
4820                 return -EOPNOTSUPP;
4821
4822         return local->ops->set_radar_background(&local->hw, chandef);
4823 }
4824
4825 static int ieee80211_add_intf_link(struct wiphy *wiphy,
4826                                    struct wireless_dev *wdev,
4827                                    unsigned int link_id)
4828 {
4829         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4830
4831         lockdep_assert_wiphy(sdata->local->hw.wiphy);
4832
4833         if (wdev->use_4addr)
4834                 return -EOPNOTSUPP;
4835
4836         return ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
4837 }
4838
4839 static void ieee80211_del_intf_link(struct wiphy *wiphy,
4840                                     struct wireless_dev *wdev,
4841                                     unsigned int link_id)
4842 {
4843         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4844
4845         lockdep_assert_wiphy(sdata->local->hw.wiphy);
4846
4847         ieee80211_vif_set_links(sdata, wdev->valid_links, 0);
4848 }
4849
4850 static int sta_add_link_station(struct ieee80211_local *local,
4851                                 struct ieee80211_sub_if_data *sdata,
4852                                 struct link_station_parameters *params)
4853 {
4854         struct sta_info *sta;
4855         int ret;
4856
4857         sta = sta_info_get_bss(sdata, params->mld_mac);
4858         if (!sta)
4859                 return -ENOENT;
4860
4861         if (!sta->sta.valid_links)
4862                 return -EINVAL;
4863
4864         if (sta->sta.valid_links & BIT(params->link_id))
4865                 return -EALREADY;
4866
4867         ret = ieee80211_sta_allocate_link(sta, params->link_id);
4868         if (ret)
4869                 return ret;
4870
4871         ret = sta_link_apply_parameters(local, sta, true, params);
4872         if (ret) {
4873                 ieee80211_sta_free_link(sta, params->link_id);
4874                 return ret;
4875         }
4876
4877         /* ieee80211_sta_activate_link frees the link upon failure */
4878         return ieee80211_sta_activate_link(sta, params->link_id);
4879 }
4880
4881 static int
4882 ieee80211_add_link_station(struct wiphy *wiphy, struct net_device *dev,
4883                            struct link_station_parameters *params)
4884 {
4885         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4886         struct ieee80211_local *local = wiphy_priv(wiphy);
4887
4888         lockdep_assert_wiphy(sdata->local->hw.wiphy);
4889
4890         return sta_add_link_station(local, sdata, params);
4891 }
4892
4893 static int sta_mod_link_station(struct ieee80211_local *local,
4894                                 struct ieee80211_sub_if_data *sdata,
4895                                 struct link_station_parameters *params)
4896 {
4897         struct sta_info *sta;
4898
4899         sta = sta_info_get_bss(sdata, params->mld_mac);
4900         if (!sta)
4901                 return -ENOENT;
4902
4903         if (!(sta->sta.valid_links & BIT(params->link_id)))
4904                 return -EINVAL;
4905
4906         return sta_link_apply_parameters(local, sta, false, params);
4907 }
4908
4909 static int
4910 ieee80211_mod_link_station(struct wiphy *wiphy, struct net_device *dev,
4911                            struct link_station_parameters *params)
4912 {
4913         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4914         struct ieee80211_local *local = wiphy_priv(wiphy);
4915
4916         lockdep_assert_wiphy(sdata->local->hw.wiphy);
4917
4918         return sta_mod_link_station(local, sdata, params);
4919 }
4920
4921 static int sta_del_link_station(struct ieee80211_sub_if_data *sdata,
4922                                 struct link_station_del_parameters *params)
4923 {
4924         struct sta_info *sta;
4925
4926         sta = sta_info_get_bss(sdata, params->mld_mac);
4927         if (!sta)
4928                 return -ENOENT;
4929
4930         if (!(sta->sta.valid_links & BIT(params->link_id)))
4931                 return -EINVAL;
4932
4933         /* must not create a STA without links */
4934         if (sta->sta.valid_links == BIT(params->link_id))
4935                 return -EINVAL;
4936
4937         ieee80211_sta_remove_link(sta, params->link_id);
4938
4939         return 0;
4940 }
4941
4942 static int
4943 ieee80211_del_link_station(struct wiphy *wiphy, struct net_device *dev,
4944                            struct link_station_del_parameters *params)
4945 {
4946         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4947
4948         lockdep_assert_wiphy(sdata->local->hw.wiphy);
4949
4950         return sta_del_link_station(sdata, params);
4951 }
4952
4953 static int ieee80211_set_hw_timestamp(struct wiphy *wiphy,
4954                                       struct net_device *dev,
4955                                       struct cfg80211_set_hw_timestamp *hwts)
4956 {
4957         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4958         struct ieee80211_local *local = sdata->local;
4959
4960         if (!local->ops->set_hw_timestamp)
4961                 return -EOPNOTSUPP;
4962
4963         if (!check_sdata_in_driver(sdata))
4964                 return -EIO;
4965
4966         return local->ops->set_hw_timestamp(&local->hw, &sdata->vif, hwts);
4967 }
4968
4969 const struct cfg80211_ops mac80211_config_ops = {
4970         .add_virtual_intf = ieee80211_add_iface,
4971         .del_virtual_intf = ieee80211_del_iface,
4972         .change_virtual_intf = ieee80211_change_iface,
4973         .start_p2p_device = ieee80211_start_p2p_device,
4974         .stop_p2p_device = ieee80211_stop_p2p_device,
4975         .add_key = ieee80211_add_key,
4976         .del_key = ieee80211_del_key,
4977         .get_key = ieee80211_get_key,
4978         .set_default_key = ieee80211_config_default_key,
4979         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4980         .set_default_beacon_key = ieee80211_config_default_beacon_key,
4981         .start_ap = ieee80211_start_ap,
4982         .change_beacon = ieee80211_change_beacon,
4983         .stop_ap = ieee80211_stop_ap,
4984         .add_station = ieee80211_add_station,
4985         .del_station = ieee80211_del_station,
4986         .change_station = ieee80211_change_station,
4987         .get_station = ieee80211_get_station,
4988         .dump_station = ieee80211_dump_station,
4989         .dump_survey = ieee80211_dump_survey,
4990 #ifdef CONFIG_MAC80211_MESH
4991         .add_mpath = ieee80211_add_mpath,
4992         .del_mpath = ieee80211_del_mpath,
4993         .change_mpath = ieee80211_change_mpath,
4994         .get_mpath = ieee80211_get_mpath,
4995         .dump_mpath = ieee80211_dump_mpath,
4996         .get_mpp = ieee80211_get_mpp,
4997         .dump_mpp = ieee80211_dump_mpp,
4998         .update_mesh_config = ieee80211_update_mesh_config,
4999         .get_mesh_config = ieee80211_get_mesh_config,
5000         .join_mesh = ieee80211_join_mesh,
5001         .leave_mesh = ieee80211_leave_mesh,
5002 #endif
5003         .join_ocb = ieee80211_join_ocb,
5004         .leave_ocb = ieee80211_leave_ocb,
5005         .change_bss = ieee80211_change_bss,
5006         .inform_bss = ieee80211_inform_bss,
5007         .set_txq_params = ieee80211_set_txq_params,
5008         .set_monitor_channel = ieee80211_set_monitor_channel,
5009         .suspend = ieee80211_suspend,
5010         .resume = ieee80211_resume,
5011         .scan = ieee80211_scan,
5012         .abort_scan = ieee80211_abort_scan,
5013         .sched_scan_start = ieee80211_sched_scan_start,
5014         .sched_scan_stop = ieee80211_sched_scan_stop,
5015         .auth = ieee80211_auth,
5016         .assoc = ieee80211_assoc,
5017         .deauth = ieee80211_deauth,
5018         .disassoc = ieee80211_disassoc,
5019         .join_ibss = ieee80211_join_ibss,
5020         .leave_ibss = ieee80211_leave_ibss,
5021         .set_mcast_rate = ieee80211_set_mcast_rate,
5022         .set_wiphy_params = ieee80211_set_wiphy_params,
5023         .set_tx_power = ieee80211_set_tx_power,
5024         .get_tx_power = ieee80211_get_tx_power,
5025         .rfkill_poll = ieee80211_rfkill_poll,
5026         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
5027         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
5028         .set_power_mgmt = ieee80211_set_power_mgmt,
5029         .set_bitrate_mask = ieee80211_set_bitrate_mask,
5030         .remain_on_channel = ieee80211_remain_on_channel,
5031         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
5032         .mgmt_tx = ieee80211_mgmt_tx,
5033         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
5034         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
5035         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
5036         .update_mgmt_frame_registrations =
5037                 ieee80211_update_mgmt_frame_registrations,
5038         .set_antenna = ieee80211_set_antenna,
5039         .get_antenna = ieee80211_get_antenna,
5040         .set_rekey_data = ieee80211_set_rekey_data,
5041         .tdls_oper = ieee80211_tdls_oper,
5042         .tdls_mgmt = ieee80211_tdls_mgmt,
5043         .tdls_channel_switch = ieee80211_tdls_channel_switch,
5044         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
5045         .probe_client = ieee80211_probe_client,
5046         .set_noack_map = ieee80211_set_noack_map,
5047 #ifdef CONFIG_PM
5048         .set_wakeup = ieee80211_set_wakeup,
5049 #endif
5050         .get_channel = ieee80211_cfg_get_channel,
5051         .start_radar_detection = ieee80211_start_radar_detection,
5052         .end_cac = ieee80211_end_cac,
5053         .channel_switch = ieee80211_channel_switch,
5054         .set_qos_map = ieee80211_set_qos_map,
5055         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
5056         .add_tx_ts = ieee80211_add_tx_ts,
5057         .del_tx_ts = ieee80211_del_tx_ts,
5058         .start_nan = ieee80211_start_nan,
5059         .stop_nan = ieee80211_stop_nan,
5060         .nan_change_conf = ieee80211_nan_change_conf,
5061         .add_nan_func = ieee80211_add_nan_func,
5062         .del_nan_func = ieee80211_del_nan_func,
5063         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
5064         .tx_control_port = ieee80211_tx_control_port,
5065         .get_txq_stats = ieee80211_get_txq_stats,
5066         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
5067         .start_pmsr = ieee80211_start_pmsr,
5068         .abort_pmsr = ieee80211_abort_pmsr,
5069         .probe_mesh_link = ieee80211_probe_mesh_link,
5070         .set_tid_config = ieee80211_set_tid_config,
5071         .reset_tid_config = ieee80211_reset_tid_config,
5072         .set_sar_specs = ieee80211_set_sar_specs,
5073         .color_change = ieee80211_color_change,
5074         .set_radar_background = ieee80211_set_radar_background,
5075         .add_intf_link = ieee80211_add_intf_link,
5076         .del_intf_link = ieee80211_del_intf_link,
5077         .add_link_station = ieee80211_add_link_station,
5078         .mod_link_station = ieee80211_mod_link_station,
5079         .del_link_station = ieee80211_del_link_station,
5080         .set_hw_timestamp = ieee80211_set_hw_timestamp,
5081 };