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) 2018-2020 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 void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
  27                                          struct vif_params *params)
  28 {
  29         bool mu_mimo_groups = false;
  30         bool mu_mimo_follow = false;
  31
  32         if (params->vht_mumimo_groups) {
  33                 u64 membership;
  34
  35                 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
  36
  37                 memcpy(sdata->vif.bss_conf.mu_group.membership,
  38                        params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
  39                 memcpy(sdata->vif.bss_conf.mu_group.position,
  40                        params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
  41                        WLAN_USER_POSITION_LEN);
  42                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
  43                 /* don't care about endianness - just check for 0 */
  44                 memcpy(&membership, params->vht_mumimo_groups,
  45                        WLAN_MEMBERSHIP_LEN);
  46                 mu_mimo_groups = membership != 0;
  47         }
  48
  49         if (params->vht_mumimo_follow_addr) {
  50                 mu_mimo_follow =
  51                         is_valid_ether_addr(params->vht_mumimo_follow_addr);
  52                 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
  53                                 params->vht_mumimo_follow_addr);
  54         }
  55
  56         sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
  57 }
  58
  59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
  60                                      struct vif_params *params)
  61 {
  62         struct ieee80211_local *local = sdata->local;
  63         struct ieee80211_sub_if_data *monitor_sdata;
  64
  65         /* check flags first */
  66         if (params->flags && ieee80211_sdata_running(sdata)) {
  67                 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
  68
  69                 /*
  70                  * Prohibit MONITOR_FLAG_COOK_FRAMES and
  71                  * MONITOR_FLAG_ACTIVE to be changed while the
  72                  * interface is up.
  73                  * Else we would need to add a lot of cruft
  74                  * to update everything:
  75                  *      cooked_mntrs, monitor and all fif_* counters
  76                  *      reconfigure hardware
  77                  */
  78                 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
  79                         return -EBUSY;
  80         }
  81
  82         /* also validate MU-MIMO change */
  83         monitor_sdata = rtnl_dereference(local->monitor_sdata);
  84
  85         if (!monitor_sdata &&
  86             (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
  87                 return -EOPNOTSUPP;
  88
  89         /* apply all changes now - no failures allowed */
  90
  91         if (monitor_sdata)
  92                 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
  93
  94         if (params->flags) {
  95                 if (ieee80211_sdata_running(sdata)) {
  96                         ieee80211_adjust_monitor_flags(sdata, -1);
  97                         sdata->u.mntr.flags = params->flags;
  98                         ieee80211_adjust_monitor_flags(sdata, 1);
  99
 100                         ieee80211_configure_filter(local);
 101                 } else {
 102                         /*
 103                          * Because the interface is down, ieee80211_do_stop
 104                          * and ieee80211_do_open take care of "everything"
 105                          * mentioned in the comment above.
 106                          */
 107                         sdata->u.mntr.flags = params->flags;
 108                 }
 109         }
 110
 111         return 0;
 112 }
 113
 114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
 115                                                 const char *name,
 116                                                 unsigned char name_assign_type,
 117                                                 enum nl80211_iftype type,
 118                                                 struct vif_params *params)
 119 {
 120         struct ieee80211_local *local = wiphy_priv(wiphy);
 121         struct wireless_dev *wdev;
 122         struct ieee80211_sub_if_data *sdata;
 123         int err;
 124
 125         err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
 126         if (err)
 127                 return ERR_PTR(err);
 128
 129         sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 130
 131         if (type == NL80211_IFTYPE_MONITOR) {
 132                 err = ieee80211_set_mon_options(sdata, params);
 133                 if (err) {
 134                         ieee80211_if_remove(sdata);
 135                         return NULL;
 136                 }
 137         }
 138
 139         return wdev;
 140 }
 141
 142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
 143 {
 144         ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
 145
 146         return 0;
 147 }
 148
 149 static int ieee80211_change_iface(struct wiphy *wiphy,
 150                                   struct net_device *dev,
 151                                   enum nl80211_iftype type,
 152                                   struct vif_params *params)
 153 {
 154         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 155         int ret;
 156
 157         ret = ieee80211_if_change_type(sdata, type);
 158         if (ret)
 159                 return ret;
 160
 161         if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
 162                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
 163                 ieee80211_check_fast_rx_iface(sdata);
 164         } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
 165                 sdata->u.mgd.use_4addr = params->use_4addr;
 166         }
 167
 168         if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
 169                 ret = ieee80211_set_mon_options(sdata, params);
 170                 if (ret)
 171                         return ret;
 172         }
 173
 174         return 0;
 175 }
 176
 177 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 178                                       struct wireless_dev *wdev)
 179 {
 180         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 181         int ret;
 182
 183         mutex_lock(&sdata->local->chanctx_mtx);
 184         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 185         mutex_unlock(&sdata->local->chanctx_mtx);
 186         if (ret < 0)
 187                 return ret;
 188
 189         return ieee80211_do_open(wdev, true);
 190 }
 191
 192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 193                                       struct wireless_dev *wdev)
 194 {
 195         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 196 }
 197
 198 static int ieee80211_start_nan(struct wiphy *wiphy,
 199                                struct wireless_dev *wdev,
 200                                struct cfg80211_nan_conf *conf)
 201 {
 202         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 203         int ret;
 204
 205         mutex_lock(&sdata->local->chanctx_mtx);
 206         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 207         mutex_unlock(&sdata->local->chanctx_mtx);
 208         if (ret < 0)
 209                 return ret;
 210
 211         ret = ieee80211_do_open(wdev, true);
 212         if (ret)
 213                 return ret;
 214
 215         ret = drv_start_nan(sdata->local, sdata, conf);
 216         if (ret)
 217                 ieee80211_sdata_stop(sdata);
 218
 219         sdata->u.nan.conf = *conf;
 220
 221         return ret;
 222 }
 223
 224 static void ieee80211_stop_nan(struct wiphy *wiphy,
 225                                struct wireless_dev *wdev)
 226 {
 227         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 228
 229         drv_stop_nan(sdata->local, sdata);
 230         ieee80211_sdata_stop(sdata);
 231 }
 232
 233 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
 234                                      struct wireless_dev *wdev,
 235                                      struct cfg80211_nan_conf *conf,
 236                                      u32 changes)
 237 {
 238         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 239         struct cfg80211_nan_conf new_conf;
 240         int ret = 0;
 241
 242         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 243                 return -EOPNOTSUPP;
 244
 245         if (!ieee80211_sdata_running(sdata))
 246                 return -ENETDOWN;
 247
 248         new_conf = sdata->u.nan.conf;
 249
 250         if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
 251                 new_conf.master_pref = conf->master_pref;
 252
 253         if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
 254                 new_conf.bands = conf->bands;
 255
 256         ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
 257         if (!ret)
 258                 sdata->u.nan.conf = new_conf;
 259
 260         return ret;
 261 }
 262
 263 static int ieee80211_add_nan_func(struct wiphy *wiphy,
 264                                   struct wireless_dev *wdev,
 265                                   struct cfg80211_nan_func *nan_func)
 266 {
 267         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 268         int ret;
 269
 270         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 271                 return -EOPNOTSUPP;
 272
 273         if (!ieee80211_sdata_running(sdata))
 274                 return -ENETDOWN;
 275
 276         spin_lock_bh(&sdata->u.nan.func_lock);
 277
 278         ret = idr_alloc(&sdata->u.nan.function_inst_ids,
 279                         nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
 280                         GFP_ATOMIC);
 281         spin_unlock_bh(&sdata->u.nan.func_lock);
 282
 283         if (ret < 0)
 284                 return ret;
 285
 286         nan_func->instance_id = ret;
 287
 288         WARN_ON(nan_func->instance_id == 0);
 289
 290         ret = drv_add_nan_func(sdata->local, sdata, nan_func);
 291         if (ret) {
 292                 spin_lock_bh(&sdata->u.nan.func_lock);
 293                 idr_remove(&sdata->u.nan.function_inst_ids,
 294                            nan_func->instance_id);
 295                 spin_unlock_bh(&sdata->u.nan.func_lock);
 296         }
 297
 298         return ret;
 299 }
 300
 301 static struct cfg80211_nan_func *
 302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
 303                                   u64 cookie)
 304 {
 305         struct cfg80211_nan_func *func;
 306         int id;
 307
 308         lockdep_assert_held(&sdata->u.nan.func_lock);
 309
 310         idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
 311                 if (func->cookie == cookie)
 312                         return func;
 313         }
 314
 315         return NULL;
 316 }
 317
 318 static void ieee80211_del_nan_func(struct wiphy *wiphy,
 319                                   struct wireless_dev *wdev, u64 cookie)
 320 {
 321         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 322         struct cfg80211_nan_func *func;
 323         u8 instance_id = 0;
 324
 325         if (sdata->vif.type != NL80211_IFTYPE_NAN ||
 326             !ieee80211_sdata_running(sdata))
 327                 return;
 328
 329         spin_lock_bh(&sdata->u.nan.func_lock);
 330
 331         func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
 332         if (func)
 333                 instance_id = func->instance_id;
 334
 335         spin_unlock_bh(&sdata->u.nan.func_lock);
 336
 337         if (instance_id)
 338                 drv_del_nan_func(sdata->local, sdata, instance_id);
 339 }
 340
 341 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 342                                   struct net_device *dev,
 343                                   u16 noack_map)
 344 {
 345         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 346
 347         sdata->noack_map = noack_map;
 348
 349         ieee80211_check_fast_xmit_iface(sdata);
 350
 351         return 0;
 352 }
 353
 354 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
 355                             const u8 *mac_addr, u8 key_idx)
 356 {
 357         struct ieee80211_local *local = sdata->local;
 358         struct ieee80211_key *key;
 359         struct sta_info *sta;
 360         int ret = -EINVAL;
 361
 362         if (!wiphy_ext_feature_isset(local->hw.wiphy,
 363                                      NL80211_EXT_FEATURE_EXT_KEY_ID))
 364                 return -EINVAL;
 365
 366         sta = sta_info_get_bss(sdata, mac_addr);
 367
 368         if (!sta)
 369                 return -EINVAL;
 370
 371         if (sta->ptk_idx == key_idx)
 372                 return 0;
 373
 374         mutex_lock(&local->key_mtx);
 375         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 376
 377         if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
 378                 ret = ieee80211_set_tx_key(key);
 379
 380         mutex_unlock(&local->key_mtx);
 381         return ret;
 382 }
 383
 384 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 385                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 386                              struct key_params *params)
 387 {
 388         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 389         struct ieee80211_local *local = sdata->local;
 390         struct sta_info *sta = NULL;
 391         const struct ieee80211_cipher_scheme *cs = NULL;
 392         struct ieee80211_key *key;
 393         int err;
 394
 395         if (!ieee80211_sdata_running(sdata))
 396                 return -ENETDOWN;
 397
 398         if (pairwise && params->mode == NL80211_KEY_SET_TX)
 399                 return ieee80211_set_tx(sdata, mac_addr, key_idx);
 400
 401         /* reject WEP and TKIP keys if WEP failed to initialize */
 402         switch (params->cipher) {
 403         case WLAN_CIPHER_SUITE_WEP40:
 404         case WLAN_CIPHER_SUITE_TKIP:
 405         case WLAN_CIPHER_SUITE_WEP104:
 406                 if (WARN_ON_ONCE(fips_enabled))
 407                         return -EINVAL;
 408         case WLAN_CIPHER_SUITE_CCMP:
 409         case WLAN_CIPHER_SUITE_CCMP_256:
 410         case WLAN_CIPHER_SUITE_AES_CMAC:
 411         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 412         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 413         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 414         case WLAN_CIPHER_SUITE_GCMP:
 415         case WLAN_CIPHER_SUITE_GCMP_256:
 416                 break;
 417         default:
 418                 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
 419                 break;
 420         }
 421
 422         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 423                                   params->key, params->seq_len, params->seq,
 424                                   cs);
 425         if (IS_ERR(key))
 426                 return PTR_ERR(key);
 427
 428         if (pairwise)
 429                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 430
 431         if (params->mode == NL80211_KEY_NO_TX)
 432                 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
 433
 434         mutex_lock(&local->sta_mtx);
 435
 436         if (mac_addr) {
 437                 sta = sta_info_get_bss(sdata, mac_addr);
 438                 /*
 439                  * The ASSOC test makes sure the driver is ready to
 440                  * receive the key. When wpa_supplicant has roamed
 441                  * using FT, it attempts to set the key before
 442                  * association has completed, this rejects that attempt
 443                  * so it will set the key again after association.
 444                  *
 445                  * TODO: accept the key if we have a station entry and
 446                  *       add it to the device after the station.
 447                  */
 448                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 449                         ieee80211_key_free_unused(key);
 450                         err = -ENOENT;
 451                         goto out_unlock;
 452                 }
 453         }
 454
 455         switch (sdata->vif.type) {
 456         case NL80211_IFTYPE_STATION:
 457                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 458                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 459                 break;
 460         case NL80211_IFTYPE_AP:
 461         case NL80211_IFTYPE_AP_VLAN:
 462                 /* Keys without a station are used for TX only */
 463                 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
 464                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 465                 break;
 466         case NL80211_IFTYPE_ADHOC:
 467                 /* no MFP (yet) */
 468                 break;
 469         case NL80211_IFTYPE_MESH_POINT:
 470 #ifdef CONFIG_MAC80211_MESH
 471                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 472                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 473                 break;
 474 #endif
 475         case NL80211_IFTYPE_WDS:
 476         case NL80211_IFTYPE_MONITOR:
 477         case NL80211_IFTYPE_P2P_DEVICE:
 478         case NL80211_IFTYPE_NAN:
 479         case NL80211_IFTYPE_UNSPECIFIED:
 480         case NUM_NL80211_IFTYPES:
 481         case NL80211_IFTYPE_P2P_CLIENT:
 482         case NL80211_IFTYPE_P2P_GO:
 483         case NL80211_IFTYPE_OCB:
 484                 /* shouldn't happen */
 485                 WARN_ON_ONCE(1);
 486                 break;
 487         }
 488
 489         if (sta)
 490                 sta->cipher_scheme = cs;
 491
 492         err = ieee80211_key_link(key, sdata, sta);
 493
 494  out_unlock:
 495         mutex_unlock(&local->sta_mtx);
 496
 497         return err;
 498 }
 499
 500 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 501                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 502 {
 503         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 504         struct ieee80211_local *local = sdata->local;
 505         struct sta_info *sta;
 506         struct ieee80211_key *key = NULL;
 507         int ret;
 508
 509         mutex_lock(&local->sta_mtx);
 510         mutex_lock(&local->key_mtx);
 511
 512         if (mac_addr) {
 513                 ret = -ENOENT;
 514
 515                 sta = sta_info_get_bss(sdata, mac_addr);
 516                 if (!sta)
 517                         goto out_unlock;
 518
 519                 if (pairwise)
 520                         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 521                 else
 522                         key = key_mtx_dereference(local, sta->gtk[key_idx]);
 523         } else
 524                 key = key_mtx_dereference(local, sdata->keys[key_idx]);
 525
 526         if (!key) {
 527                 ret = -ENOENT;
 528                 goto out_unlock;
 529         }
 530
 531         ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
 532
 533         ret = 0;
 534  out_unlock:
 535         mutex_unlock(&local->key_mtx);
 536         mutex_unlock(&local->sta_mtx);
 537
 538         return ret;
 539 }
 540
 541 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 542                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 543                              void *cookie,
 544                              void (*callback)(void *cookie,
 545                                               struct key_params *params))
 546 {
 547         struct ieee80211_sub_if_data *sdata;
 548         struct sta_info *sta = NULL;
 549         u8 seq[6] = {0};
 550         struct key_params params;
 551         struct ieee80211_key *key = NULL;
 552         u64 pn64;
 553         u32 iv32;
 554         u16 iv16;
 555         int err = -ENOENT;
 556         struct ieee80211_key_seq kseq = {};
 557
 558         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 559
 560         rcu_read_lock();
 561
 562         if (mac_addr) {
 563                 sta = sta_info_get_bss(sdata, mac_addr);
 564                 if (!sta)
 565                         goto out;
 566
 567                 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 568                         key = rcu_dereference(sta->ptk[key_idx]);
 569                 else if (!pairwise &&
 570                          key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS +
 571                          NUM_DEFAULT_BEACON_KEYS)
 572                         key = rcu_dereference(sta->gtk[key_idx]);
 573         } else
 574                 key = rcu_dereference(sdata->keys[key_idx]);
 575
 576         if (!key)
 577                 goto out;
 578
 579         memset(&params, 0, sizeof(params));
 580
 581         params.cipher = key->conf.cipher;
 582
 583         switch (key->conf.cipher) {
 584         case WLAN_CIPHER_SUITE_TKIP:
 585                 pn64 = atomic64_read(&key->conf.tx_pn);
 586                 iv32 = TKIP_PN_TO_IV32(pn64);
 587                 iv16 = TKIP_PN_TO_IV16(pn64);
 588
 589                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 590                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 591                         drv_get_key_seq(sdata->local, key, &kseq);
 592                         iv32 = kseq.tkip.iv32;
 593                         iv16 = kseq.tkip.iv16;
 594                 }
 595
 596                 seq[0] = iv16 & 0xff;
 597                 seq[1] = (iv16 >> 8) & 0xff;
 598                 seq[2] = iv32 & 0xff;
 599                 seq[3] = (iv32 >> 8) & 0xff;
 600                 seq[4] = (iv32 >> 16) & 0xff;
 601                 seq[5] = (iv32 >> 24) & 0xff;
 602                 params.seq = seq;
 603                 params.seq_len = 6;
 604                 break;
 605         case WLAN_CIPHER_SUITE_CCMP:
 606         case WLAN_CIPHER_SUITE_CCMP_256:
 607         case WLAN_CIPHER_SUITE_AES_CMAC:
 608         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 609                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 610                              offsetof(typeof(kseq), aes_cmac));
 611                 fallthrough;
 612         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 613         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 614                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 615                              offsetof(typeof(kseq), aes_gmac));
 616                 fallthrough;
 617         case WLAN_CIPHER_SUITE_GCMP:
 618         case WLAN_CIPHER_SUITE_GCMP_256:
 619                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 620                              offsetof(typeof(kseq), gcmp));
 621
 622                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 623                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 624                         drv_get_key_seq(sdata->local, key, &kseq);
 625                         memcpy(seq, kseq.ccmp.pn, 6);
 626                 } else {
 627                         pn64 = atomic64_read(&key->conf.tx_pn);
 628                         seq[0] = pn64;
 629                         seq[1] = pn64 >> 8;
 630                         seq[2] = pn64 >> 16;
 631                         seq[3] = pn64 >> 24;
 632                         seq[4] = pn64 >> 32;
 633                         seq[5] = pn64 >> 40;
 634                 }
 635                 params.seq = seq;
 636                 params.seq_len = 6;
 637                 break;
 638         default:
 639                 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
 640                         break;
 641                 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
 642                         break;
 643                 drv_get_key_seq(sdata->local, key, &kseq);
 644                 params.seq = kseq.hw.seq;
 645                 params.seq_len = kseq.hw.seq_len;
 646                 break;
 647         }
 648
 649         params.key = key->conf.key;
 650         params.key_len = key->conf.keylen;
 651
 652         callback(cookie, &params);
 653         err = 0;
 654
 655  out:
 656         rcu_read_unlock();
 657         return err;
 658 }
 659
 660 static int ieee80211_config_default_key(struct wiphy *wiphy,
 661                                         struct net_device *dev,
 662                                         u8 key_idx, bool uni,
 663                                         bool multi)
 664 {
 665         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 666
 667         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 668
 669         return 0;
 670 }
 671
 672 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 673                                              struct net_device *dev,
 674                                              u8 key_idx)
 675 {
 676         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 677
 678         ieee80211_set_default_mgmt_key(sdata, key_idx);
 679
 680         return 0;
 681 }
 682
 683 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
 684                                                struct net_device *dev,
 685                                                u8 key_idx)
 686 {
 687         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 688
 689         ieee80211_set_default_beacon_key(sdata, key_idx);
 690
 691         return 0;
 692 }
 693
 694 void sta_set_rate_info_tx(struct sta_info *sta,
 695                           const struct ieee80211_tx_rate *rate,
 696                           struct rate_info *rinfo)
 697 {
 698         rinfo->flags = 0;
 699         if (rate->flags & IEEE80211_TX_RC_MCS) {
 700                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 701                 rinfo->mcs = rate->idx;
 702         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 703                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 704                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 705                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 706         } else {
 707                 struct ieee80211_supported_band *sband;
 708                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 709                 u16 brate;
 710
 711                 sband = ieee80211_get_sband(sta->sdata);
 712                 WARN_ON_ONCE(sband && !sband->bitrates);
 713                 if (sband && sband->bitrates) {
 714                         brate = sband->bitrates[rate->idx].bitrate;
 715                         rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 716                 }
 717         }
 718         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 719                 rinfo->bw = RATE_INFO_BW_40;
 720         else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 721                 rinfo->bw = RATE_INFO_BW_80;
 722         else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 723                 rinfo->bw = RATE_INFO_BW_160;
 724         else
 725                 rinfo->bw = RATE_INFO_BW_20;
 726         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 727                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 728 }
 729
 730 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 731                                   int idx, u8 *mac, struct station_info *sinfo)
 732 {
 733         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 734         struct ieee80211_local *local = sdata->local;
 735         struct sta_info *sta;
 736         int ret = -ENOENT;
 737
 738         mutex_lock(&local->sta_mtx);
 739
 740         sta = sta_info_get_by_idx(sdata, idx);
 741         if (sta) {
 742                 ret = 0;
 743                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 744                 sta_set_sinfo(sta, sinfo, true);
 745         }
 746
 747         mutex_unlock(&local->sta_mtx);
 748
 749         return ret;
 750 }
 751
 752 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 753                                  int idx, struct survey_info *survey)
 754 {
 755         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 756
 757         return drv_get_survey(local, idx, survey);
 758 }
 759
 760 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 761                                  const u8 *mac, struct station_info *sinfo)
 762 {
 763         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 764         struct ieee80211_local *local = sdata->local;
 765         struct sta_info *sta;
 766         int ret = -ENOENT;
 767
 768         mutex_lock(&local->sta_mtx);
 769
 770         sta = sta_info_get_bss(sdata, mac);
 771         if (sta) {
 772                 ret = 0;
 773                 sta_set_sinfo(sta, sinfo, true);
 774         }
 775
 776         mutex_unlock(&local->sta_mtx);
 777
 778         return ret;
 779 }
 780
 781 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 782                                          struct cfg80211_chan_def *chandef)
 783 {
 784         struct ieee80211_local *local = wiphy_priv(wiphy);
 785         struct ieee80211_sub_if_data *sdata;
 786         int ret = 0;
 787
 788         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 789                 return 0;
 790
 791         mutex_lock(&local->mtx);
 792         if (local->use_chanctx) {
 793                 sdata = rtnl_dereference(local->monitor_sdata);
 794                 if (sdata) {
 795                         ieee80211_vif_release_channel(sdata);
 796                         ret = ieee80211_vif_use_channel(sdata, chandef,
 797                                         IEEE80211_CHANCTX_EXCLUSIVE);
 798                 }
 799         } else if (local->open_count == local->monitors) {
 800                 local->_oper_chandef = *chandef;
 801                 ieee80211_hw_config(local, 0);
 802         }
 803
 804         if (ret == 0)
 805                 local->monitor_chandef = *chandef;
 806         mutex_unlock(&local->mtx);
 807
 808         return ret;
 809 }
 810
 811 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 812                                     const u8 *resp, size_t resp_len,
 813                                     const struct ieee80211_csa_settings *csa)
 814 {
 815         struct probe_resp *new, *old;
 816
 817         if (!resp || !resp_len)
 818                 return 1;
 819
 820         old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 821
 822         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 823         if (!new)
 824                 return -ENOMEM;
 825
 826         new->len = resp_len;
 827         memcpy(new->data, resp, resp_len);
 828
 829         if (csa)
 830                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
 831                        csa->n_counter_offsets_presp *
 832                        sizeof(new->cntdwn_counter_offsets[0]));
 833
 834         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 835         if (old)
 836                 kfree_rcu(old, rcu_head);
 837
 838         return 0;
 839 }
 840
 841 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
 842                                         struct cfg80211_fils_discovery *params)
 843 {
 844         struct fils_discovery_data *new, *old = NULL;
 845         struct ieee80211_fils_discovery *fd;
 846
 847         if (!params->tmpl || !params->tmpl_len)
 848                 return -EINVAL;
 849
 850         fd = &sdata->vif.bss_conf.fils_discovery;
 851         fd->min_interval = params->min_interval;
 852         fd->max_interval = params->max_interval;
 853
 854         old = sdata_dereference(sdata->u.ap.fils_discovery, sdata);
 855         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 856         if (!new)
 857                 return -ENOMEM;
 858         new->len = params->tmpl_len;
 859         memcpy(new->data, params->tmpl, params->tmpl_len);
 860         rcu_assign_pointer(sdata->u.ap.fils_discovery, new);
 861
 862         if (old)
 863                 kfree_rcu(old, rcu_head);
 864
 865         return 0;
 866 }
 867
 868 static int
 869 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
 870                                      struct cfg80211_unsol_bcast_probe_resp *params)
 871 {
 872         struct unsol_bcast_probe_resp_data *new, *old = NULL;
 873
 874         if (!params->tmpl || !params->tmpl_len)
 875                 return -EINVAL;
 876
 877         old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata);
 878         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 879         if (!new)
 880                 return -ENOMEM;
 881         new->len = params->tmpl_len;
 882         memcpy(new->data, params->tmpl, params->tmpl_len);
 883         rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new);
 884
 885         if (old)
 886                 kfree_rcu(old, rcu_head);
 887
 888         sdata->vif.bss_conf.unsol_bcast_probe_resp_interval =
 889                                                         params->interval;
 890
 891         return 0;
 892 }
 893
 894 static int ieee80211_set_ftm_responder_params(
 895                                 struct ieee80211_sub_if_data *sdata,
 896                                 const u8 *lci, size_t lci_len,
 897                                 const u8 *civicloc, size_t civicloc_len)
 898 {
 899         struct ieee80211_ftm_responder_params *new, *old;
 900         struct ieee80211_bss_conf *bss_conf;
 901         u8 *pos;
 902         int len;
 903
 904         if (!lci_len && !civicloc_len)
 905                 return 0;
 906
 907         bss_conf = &sdata->vif.bss_conf;
 908         old = bss_conf->ftmr_params;
 909         len = lci_len + civicloc_len;
 910
 911         new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
 912         if (!new)
 913                 return -ENOMEM;
 914
 915         pos = (u8 *)(new + 1);
 916         if (lci_len) {
 917                 new->lci_len = lci_len;
 918                 new->lci = pos;
 919                 memcpy(pos, lci, lci_len);
 920                 pos += lci_len;
 921         }
 922
 923         if (civicloc_len) {
 924                 new->civicloc_len = civicloc_len;
 925                 new->civicloc = pos;
 926                 memcpy(pos, civicloc, civicloc_len);
 927                 pos += civicloc_len;
 928         }
 929
 930         bss_conf->ftmr_params = new;
 931         kfree(old);
 932
 933         return 0;
 934 }
 935
 936 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 937                                    struct cfg80211_beacon_data *params,
 938                                    const struct ieee80211_csa_settings *csa)
 939 {
 940         struct beacon_data *new, *old;
 941         int new_head_len, new_tail_len;
 942         int size, err;
 943         u32 changed = BSS_CHANGED_BEACON;
 944
 945         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 946
 947
 948         /* Need to have a beacon head if we don't have one yet */
 949         if (!params->head && !old)
 950                 return -EINVAL;
 951
 952         /* new or old head? */
 953         if (params->head)
 954                 new_head_len = params->head_len;
 955         else
 956                 new_head_len = old->head_len;
 957
 958         /* new or old tail? */
 959         if (params->tail || !old)
 960                 /* params->tail_len will be zero for !params->tail */
 961                 new_tail_len = params->tail_len;
 962         else
 963                 new_tail_len = old->tail_len;
 964
 965         size = sizeof(*new) + new_head_len + new_tail_len;
 966
 967         new = kzalloc(size, GFP_KERNEL);
 968         if (!new)
 969                 return -ENOMEM;
 970
 971         /* start filling the new info now */
 972
 973         /*
 974          * pointers go into the block we allocated,
 975          * memory is | beacon_data | head | tail |
 976          */
 977         new->head = ((u8 *) new) + sizeof(*new);
 978         new->tail = new->head + new_head_len;
 979         new->head_len = new_head_len;
 980         new->tail_len = new_tail_len;
 981
 982         if (csa) {
 983                 new->cntdwn_current_counter = csa->count;
 984                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
 985                        csa->n_counter_offsets_beacon *
 986                        sizeof(new->cntdwn_counter_offsets[0]));
 987         }
 988
 989         /* copy in head */
 990         if (params->head)
 991                 memcpy(new->head, params->head, new_head_len);
 992         else
 993                 memcpy(new->head, old->head, new_head_len);
 994
 995         /* copy in optional tail */
 996         if (params->tail)
 997                 memcpy(new->tail, params->tail, new_tail_len);
 998         else
 999                 if (old)
1000                         memcpy(new->tail, old->tail, new_tail_len);
1001
1002         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1003                                        params->probe_resp_len, csa);
1004         if (err < 0) {
1005                 kfree(new);
1006                 return err;
1007         }
1008         if (err == 0)
1009                 changed |= BSS_CHANGED_AP_PROBE_RESP;
1010
1011         if (params->ftm_responder != -1) {
1012                 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
1013                 err = ieee80211_set_ftm_responder_params(sdata,
1014                                                          params->lci,
1015                                                          params->lci_len,
1016                                                          params->civicloc,
1017                                                          params->civicloc_len);
1018
1019                 if (err < 0) {
1020                         kfree(new);
1021                         return err;
1022                 }
1023
1024                 changed |= BSS_CHANGED_FTM_RESPONDER;
1025         }
1026
1027         rcu_assign_pointer(sdata->u.ap.beacon, new);
1028
1029         if (old)
1030                 kfree_rcu(old, rcu_head);
1031
1032         return changed;
1033 }
1034
1035 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1036                               struct cfg80211_ap_settings *params)
1037 {
1038         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1039         struct ieee80211_local *local = sdata->local;
1040         struct beacon_data *old;
1041         struct ieee80211_sub_if_data *vlan;
1042         u32 changed = BSS_CHANGED_BEACON_INT |
1043                       BSS_CHANGED_BEACON_ENABLED |
1044                       BSS_CHANGED_BEACON |
1045                       BSS_CHANGED_SSID |
1046                       BSS_CHANGED_P2P_PS |
1047                       BSS_CHANGED_TXPOWER |
1048                       BSS_CHANGED_TWT;
1049         int i, err;
1050         int prev_beacon_int;
1051
1052         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1053         if (old)
1054                 return -EALREADY;
1055
1056         if (params->smps_mode != NL80211_SMPS_OFF)
1057                 return -ENOTSUPP;
1058
1059         sdata->smps_mode = IEEE80211_SMPS_OFF;
1060
1061         sdata->needed_rx_chains = sdata->local->rx_chains;
1062
1063         prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1064         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1065
1066         if (params->he_cap && params->he_oper) {
1067                 sdata->vif.bss_conf.he_support = true;
1068                 sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1069                         le32_get_bits(params->he_oper->he_oper_params,
1070                               IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1071                 sdata->vif.bss_conf.frame_time_rts_th =
1072                         le32_get_bits(params->he_oper->he_oper_params,
1073                               IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1074                 changed |= BSS_CHANGED_HE_OBSS_PD;
1075
1076                 if (params->he_bss_color.enabled)
1077                         changed |= BSS_CHANGED_HE_BSS_COLOR;
1078         }
1079
1080         mutex_lock(&local->mtx);
1081         err = ieee80211_vif_use_channel(sdata, &params->chandef,
1082                                         IEEE80211_CHANCTX_SHARED);
1083         if (!err)
1084                 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1085         mutex_unlock(&local->mtx);
1086         if (err) {
1087                 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1088                 return err;
1089         }
1090
1091         /*
1092          * Apply control port protocol, this allows us to
1093          * not encrypt dynamic WEP control frames.
1094          */
1095         sdata->control_port_protocol = params->crypto.control_port_ethertype;
1096         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1097         sdata->control_port_over_nl80211 =
1098                                 params->crypto.control_port_over_nl80211;
1099         sdata->control_port_no_preauth =
1100                                 params->crypto.control_port_no_preauth;
1101         sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1102                                                         &params->crypto,
1103                                                         sdata->vif.type);
1104
1105         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1106                 vlan->control_port_protocol =
1107                         params->crypto.control_port_ethertype;
1108                 vlan->control_port_no_encrypt =
1109                         params->crypto.control_port_no_encrypt;
1110                 vlan->control_port_over_nl80211 =
1111                         params->crypto.control_port_over_nl80211;
1112                 vlan->control_port_no_preauth =
1113                         params->crypto.control_port_no_preauth;
1114                 vlan->encrypt_headroom =
1115                         ieee80211_cs_headroom(sdata->local,
1116                                               &params->crypto,
1117                                               vlan->vif.type);
1118         }
1119
1120         sdata->vif.bss_conf.dtim_period = params->dtim_period;
1121         sdata->vif.bss_conf.enable_beacon = true;
1122         sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1123         sdata->vif.bss_conf.twt_responder = params->twt_responder;
1124         memcpy(&sdata->vif.bss_conf.he_obss_pd, &params->he_obss_pd,
1125                sizeof(struct ieee80211_he_obss_pd));
1126         memcpy(&sdata->vif.bss_conf.he_bss_color, &params->he_bss_color,
1127                sizeof(struct ieee80211_he_bss_color));
1128         sdata->vif.bss_conf.s1g = params->chandef.chan->band ==
1129                                   NL80211_BAND_S1GHZ;
1130
1131         sdata->vif.bss_conf.ssid_len = params->ssid_len;
1132         if (params->ssid_len)
1133                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1134                        params->ssid_len);
1135         sdata->vif.bss_conf.hidden_ssid =
1136                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1137
1138         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1139                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1140         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1141                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1142         if (params->p2p_opp_ps)
1143                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1144                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1145
1146         sdata->beacon_rate_set = false;
1147         if (wiphy_ext_feature_isset(local->hw.wiphy,
1148                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1149                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1150                         sdata->beacon_rateidx_mask[i] =
1151                                 params->beacon_rate.control[i].legacy;
1152                         if (sdata->beacon_rateidx_mask[i])
1153                                 sdata->beacon_rate_set = true;
1154                 }
1155         }
1156
1157         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1158                 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate;
1159
1160         err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
1161         if (err < 0)
1162                 goto error;
1163         changed |= err;
1164
1165         if (params->fils_discovery.max_interval) {
1166                 err = ieee80211_set_fils_discovery(sdata,
1167                                                    &params->fils_discovery);
1168                 if (err < 0)
1169                         goto error;
1170                 changed |= BSS_CHANGED_FILS_DISCOVERY;
1171         }
1172
1173         if (params->unsol_bcast_probe_resp.interval) {
1174                 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1175                                                            &params->unsol_bcast_probe_resp);
1176                 if (err < 0)
1177                         goto error;
1178                 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1179         }
1180
1181         err = drv_start_ap(sdata->local, sdata);
1182         if (err) {
1183                 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1184
1185                 if (old)
1186                         kfree_rcu(old, rcu_head);
1187                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1188                 goto error;
1189         }
1190
1191         ieee80211_recalc_dtim(local, sdata);
1192         ieee80211_bss_info_change_notify(sdata, changed);
1193
1194         netif_carrier_on(dev);
1195         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1196                 netif_carrier_on(vlan->dev);
1197
1198         return 0;
1199
1200 error:
1201         ieee80211_vif_release_channel(sdata);
1202         return err;
1203 }
1204
1205 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1206                                    struct cfg80211_beacon_data *params)
1207 {
1208         struct ieee80211_sub_if_data *sdata;
1209         struct beacon_data *old;
1210         int err;
1211
1212         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1213         sdata_assert_lock(sdata);
1214
1215         /* don't allow changing the beacon while CSA is in place - offset
1216          * of channel switch counter may change
1217          */
1218         if (sdata->vif.csa_active)
1219                 return -EBUSY;
1220
1221         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1222         if (!old)
1223                 return -ENOENT;
1224
1225         err = ieee80211_assign_beacon(sdata, params, NULL);
1226         if (err < 0)
1227                 return err;
1228         ieee80211_bss_info_change_notify(sdata, err);
1229         return 0;
1230 }
1231
1232 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1233 {
1234         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1235         struct ieee80211_sub_if_data *vlan;
1236         struct ieee80211_local *local = sdata->local;
1237         struct beacon_data *old_beacon;
1238         struct probe_resp *old_probe_resp;
1239         struct fils_discovery_data *old_fils_discovery;
1240         struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1241         struct cfg80211_chan_def chandef;
1242
1243         sdata_assert_lock(sdata);
1244
1245         old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1246         if (!old_beacon)
1247                 return -ENOENT;
1248         old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1249         old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery,
1250                                                sdata);
1251         old_unsol_bcast_probe_resp =
1252                 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp,
1253                                   sdata);
1254
1255         /* abort any running channel switch */
1256         mutex_lock(&local->mtx);
1257         sdata->vif.csa_active = false;
1258         if (sdata->csa_block_tx) {
1259                 ieee80211_wake_vif_queues(local, sdata,
1260                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1261                 sdata->csa_block_tx = false;
1262         }
1263
1264         mutex_unlock(&local->mtx);
1265
1266         kfree(sdata->u.ap.next_beacon);
1267         sdata->u.ap.next_beacon = NULL;
1268
1269         /* turn off carrier for this interface and dependent VLANs */
1270         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1271                 netif_carrier_off(vlan->dev);
1272         netif_carrier_off(dev);
1273
1274         /* remove beacon and probe response */
1275         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1276         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1277         RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL);
1278         RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL);
1279         kfree_rcu(old_beacon, rcu_head);
1280         if (old_probe_resp)
1281                 kfree_rcu(old_probe_resp, rcu_head);
1282         if (old_fils_discovery)
1283                 kfree_rcu(old_fils_discovery, rcu_head);
1284         if (old_unsol_bcast_probe_resp)
1285                 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1286
1287         kfree(sdata->vif.bss_conf.ftmr_params);
1288         sdata->vif.bss_conf.ftmr_params = NULL;
1289
1290         __sta_info_flush(sdata, true);
1291         ieee80211_free_keys(sdata, true);
1292
1293         sdata->vif.bss_conf.enable_beacon = false;
1294         sdata->beacon_rate_set = false;
1295         sdata->vif.bss_conf.ssid_len = 0;
1296         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1297         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1298
1299         if (sdata->wdev.cac_started) {
1300                 chandef = sdata->vif.bss_conf.chandef;
1301                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1302                 cfg80211_cac_event(sdata->dev, &chandef,
1303                                    NL80211_RADAR_CAC_ABORTED,
1304                                    GFP_KERNEL);
1305         }
1306
1307         drv_stop_ap(sdata->local, sdata);
1308
1309         /* free all potentially still buffered bcast frames */
1310         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1311         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1312
1313         mutex_lock(&local->mtx);
1314         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1315         ieee80211_vif_release_channel(sdata);
1316         mutex_unlock(&local->mtx);
1317
1318         return 0;
1319 }
1320
1321 static int sta_apply_auth_flags(struct ieee80211_local *local,
1322                                 struct sta_info *sta,
1323                                 u32 mask, u32 set)
1324 {
1325         int ret;
1326
1327         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1328             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1329             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1330                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1331                 if (ret)
1332                         return ret;
1333         }
1334
1335         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1336             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1337             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1338                 /*
1339                  * When peer becomes associated, init rate control as
1340                  * well. Some drivers require rate control initialized
1341                  * before drv_sta_state() is called.
1342                  */
1343                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1344                         rate_control_rate_init(sta);
1345
1346                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1347                 if (ret)
1348                         return ret;
1349         }
1350
1351         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1352                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1353                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1354                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1355                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1356                 else
1357                         ret = 0;
1358                 if (ret)
1359                         return ret;
1360         }
1361
1362         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1363             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1364             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1365                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1366                 if (ret)
1367                         return ret;
1368         }
1369
1370         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1371             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1372             test_sta_flag(sta, WLAN_STA_AUTH)) {
1373                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1374                 if (ret)
1375                         return ret;
1376         }
1377
1378         return 0;
1379 }
1380
1381 static void sta_apply_mesh_params(struct ieee80211_local *local,
1382                                   struct sta_info *sta,
1383                                   struct station_parameters *params)
1384 {
1385 #ifdef CONFIG_MAC80211_MESH
1386         struct ieee80211_sub_if_data *sdata = sta->sdata;
1387         u32 changed = 0;
1388
1389         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1390                 switch (params->plink_state) {
1391                 case NL80211_PLINK_ESTAB:
1392                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1393                                 changed = mesh_plink_inc_estab_count(sdata);
1394                         sta->mesh->plink_state = params->plink_state;
1395                         sta->mesh->aid = params->peer_aid;
1396
1397                         ieee80211_mps_sta_status_update(sta);
1398                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1399                                       sdata->u.mesh.mshcfg.power_mode);
1400
1401                         ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1402                         /* init at low value */
1403                         ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1404
1405                         break;
1406                 case NL80211_PLINK_LISTEN:
1407                 case NL80211_PLINK_BLOCKED:
1408                 case NL80211_PLINK_OPN_SNT:
1409                 case NL80211_PLINK_OPN_RCVD:
1410                 case NL80211_PLINK_CNF_RCVD:
1411                 case NL80211_PLINK_HOLDING:
1412                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1413                                 changed = mesh_plink_dec_estab_count(sdata);
1414                         sta->mesh->plink_state = params->plink_state;
1415
1416                         ieee80211_mps_sta_status_update(sta);
1417                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1418                                         NL80211_MESH_POWER_UNKNOWN);
1419                         break;
1420                 default:
1421                         /*  nothing  */
1422                         break;
1423                 }
1424         }
1425
1426         switch (params->plink_action) {
1427         case NL80211_PLINK_ACTION_NO_ACTION:
1428                 /* nothing */
1429                 break;
1430         case NL80211_PLINK_ACTION_OPEN:
1431                 changed |= mesh_plink_open(sta);
1432                 break;
1433         case NL80211_PLINK_ACTION_BLOCK:
1434                 changed |= mesh_plink_block(sta);
1435                 break;
1436         }
1437
1438         if (params->local_pm)
1439                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1440                                                           params->local_pm);
1441
1442         ieee80211_mbss_info_change_notify(sdata, changed);
1443 #endif
1444 }
1445
1446 static int sta_apply_parameters(struct ieee80211_local *local,
1447                                 struct sta_info *sta,
1448                                 struct station_parameters *params)
1449 {
1450         int ret = 0;
1451         struct ieee80211_supported_band *sband;
1452         struct ieee80211_sub_if_data *sdata = sta->sdata;
1453         u32 mask, set;
1454
1455         sband = ieee80211_get_sband(sdata);
1456         if (!sband)
1457                 return -EINVAL;
1458
1459         mask = params->sta_flags_mask;
1460         set = params->sta_flags_set;
1461
1462         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1463                 /*
1464                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1465                  * API but must follow AUTHENTICATED for driver state.
1466                  */
1467                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1468                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1469                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1470                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1471         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1472                 /*
1473                  * TDLS -- everything follows authorized, but
1474                  * only becoming authorized is possible, not
1475                  * going back
1476                  */
1477                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1478                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1479                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1480                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1481                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1482                 }
1483         }
1484
1485         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1486             local->hw.queues >= IEEE80211_NUM_ACS)
1487                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1488
1489         /* auth flags will be set later for TDLS,
1490          * and for unassociated stations that move to assocaited */
1491         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1492             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1493               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1494                 ret = sta_apply_auth_flags(local, sta, mask, set);
1495                 if (ret)
1496                         return ret;
1497         }
1498
1499         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1500                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1501                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1502                 else
1503                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1504         }
1505
1506         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1507                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1508                 if (set & BIT(NL80211_STA_FLAG_MFP))
1509                         set_sta_flag(sta, WLAN_STA_MFP);
1510                 else
1511                         clear_sta_flag(sta, WLAN_STA_MFP);
1512         }
1513
1514         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1515                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1516                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1517                 else
1518                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1519         }
1520
1521         /* mark TDLS channel switch support, if the AP allows it */
1522         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1523             !sdata->u.mgd.tdls_chan_switch_prohibited &&
1524             params->ext_capab_len >= 4 &&
1525             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1526                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1527
1528         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1529             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1530             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1531             params->ext_capab_len >= 8 &&
1532             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1533                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1534
1535         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1536                 sta->sta.uapsd_queues = params->uapsd_queues;
1537                 sta->sta.max_sp = params->max_sp;
1538         }
1539
1540         /* The sender might not have sent the last bit, consider it to be 0 */
1541         if (params->ext_capab_len >= 8) {
1542                 u8 val = (params->ext_capab[7] &
1543                           WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1544
1545                 /* we did get all the bits, take the MSB as well */
1546                 if (params->ext_capab_len >= 9) {
1547                         u8 val_msb = params->ext_capab[8] &
1548                                 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1549                         val_msb <<= 1;
1550                         val |= val_msb;
1551                 }
1552
1553                 switch (val) {
1554                 case 1:
1555                         sta->sta.max_amsdu_subframes = 32;
1556                         break;
1557                 case 2:
1558                         sta->sta.max_amsdu_subframes = 16;
1559                         break;
1560                 case 3:
1561                         sta->sta.max_amsdu_subframes = 8;
1562                         break;
1563                 default:
1564                         sta->sta.max_amsdu_subframes = 0;
1565                 }
1566         }
1567
1568         /*
1569          * cfg80211 validates this (1-2007) and allows setting the AID
1570          * only when creating a new station entry
1571          */
1572         if (params->aid)
1573                 sta->sta.aid = params->aid;
1574
1575         /*
1576          * Some of the following updates would be racy if called on an
1577          * existing station, via ieee80211_change_station(). However,
1578          * all such changes are rejected by cfg80211 except for updates
1579          * changing the supported rates on an existing but not yet used
1580          * TDLS peer.
1581          */
1582
1583         if (params->listen_interval >= 0)
1584                 sta->listen_interval = params->listen_interval;
1585
1586         if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1587                 sta->sta.txpwr.type = params->txpwr.type;
1588                 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1589                         sta->sta.txpwr.power = params->txpwr.power;
1590                 ret = drv_sta_set_txpwr(local, sdata, sta);
1591                 if (ret)
1592                         return ret;
1593         }
1594
1595         if (params->supported_rates && params->supported_rates_len) {
1596                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1597                                          sband, params->supported_rates,
1598                                          params->supported_rates_len,
1599                                          &sta->sta.supp_rates[sband->band]);
1600         }
1601
1602         if (params->ht_capa)
1603                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1604                                                   params->ht_capa, sta);
1605
1606         /* VHT can override some HT caps such as the A-MSDU max length */
1607         if (params->vht_capa)
1608                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1609                                                     params->vht_capa, sta);
1610
1611         if (params->he_capa)
1612                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1613                                                   (void *)params->he_capa,
1614                                                   params->he_capa_len,
1615                                                   (void *)params->he_6ghz_capa,
1616                                                   sta);
1617
1618         if (params->opmode_notif_used) {
1619                 /* returned value is only needed for rc update, but the
1620                  * rc isn't initialized here yet, so ignore it
1621                  */
1622                 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1623                                               sband->band);
1624         }
1625
1626         if (params->support_p2p_ps >= 0)
1627                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1628
1629         if (ieee80211_vif_is_mesh(&sdata->vif))
1630                 sta_apply_mesh_params(local, sta, params);
1631
1632         if (params->airtime_weight)
1633                 sta->airtime_weight = params->airtime_weight;
1634
1635         /* set the STA state after all sta info from usermode has been set */
1636         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1637             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1638                 ret = sta_apply_auth_flags(local, sta, mask, set);
1639                 if (ret)
1640                         return ret;
1641         }
1642
1643         return 0;
1644 }
1645
1646 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1647                                  const u8 *mac,
1648                                  struct station_parameters *params)
1649 {
1650         struct ieee80211_local *local = wiphy_priv(wiphy);
1651         struct sta_info *sta;
1652         struct ieee80211_sub_if_data *sdata;
1653         int err;
1654
1655         if (params->vlan) {
1656                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1657
1658                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1659                     sdata->vif.type != NL80211_IFTYPE_AP)
1660                         return -EINVAL;
1661         } else
1662                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1663
1664         if (ether_addr_equal(mac, sdata->vif.addr))
1665                 return -EINVAL;
1666
1667         if (!is_valid_ether_addr(mac))
1668                 return -EINVAL;
1669
1670         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1671             sdata->vif.type == NL80211_IFTYPE_STATION &&
1672             !sdata->u.mgd.associated)
1673                 return -EINVAL;
1674
1675         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1676         if (!sta)
1677                 return -ENOMEM;
1678
1679         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1680                 sta->sta.tdls = true;
1681
1682         err = sta_apply_parameters(local, sta, params);
1683         if (err) {
1684                 sta_info_free(local, sta);
1685                 return err;
1686         }
1687
1688         /*
1689          * for TDLS and for unassociated station, rate control should be
1690          * initialized only when rates are known and station is marked
1691          * authorized/associated
1692          */
1693         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1694             test_sta_flag(sta, WLAN_STA_ASSOC))
1695                 rate_control_rate_init(sta);
1696
1697         err = sta_info_insert_rcu(sta);
1698         if (err) {
1699                 rcu_read_unlock();
1700                 return err;
1701         }
1702
1703         rcu_read_unlock();
1704
1705         return 0;
1706 }
1707
1708 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1709                                  struct station_del_parameters *params)
1710 {
1711         struct ieee80211_sub_if_data *sdata;
1712
1713         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1714
1715         if (params->mac)
1716                 return sta_info_destroy_addr_bss(sdata, params->mac);
1717
1718         sta_info_flush(sdata);
1719         return 0;
1720 }
1721
1722 static int ieee80211_change_station(struct wiphy *wiphy,
1723                                     struct net_device *dev, const u8 *mac,
1724                                     struct station_parameters *params)
1725 {
1726         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1727         struct ieee80211_local *local = wiphy_priv(wiphy);
1728         struct sta_info *sta;
1729         struct ieee80211_sub_if_data *vlansdata;
1730         enum cfg80211_station_type statype;
1731         int err;
1732
1733         mutex_lock(&local->sta_mtx);
1734
1735         sta = sta_info_get_bss(sdata, mac);
1736         if (!sta) {
1737                 err = -ENOENT;
1738                 goto out_err;
1739         }
1740
1741         switch (sdata->vif.type) {
1742         case NL80211_IFTYPE_MESH_POINT:
1743                 if (sdata->u.mesh.user_mpm)
1744                         statype = CFG80211_STA_MESH_PEER_USER;
1745                 else
1746                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1747                 break;
1748         case NL80211_IFTYPE_ADHOC:
1749                 statype = CFG80211_STA_IBSS;
1750                 break;
1751         case NL80211_IFTYPE_STATION:
1752                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1753                         statype = CFG80211_STA_AP_STA;
1754                         break;
1755                 }
1756                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1757                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1758                 else
1759                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1760                 break;
1761         case NL80211_IFTYPE_AP:
1762         case NL80211_IFTYPE_AP_VLAN:
1763                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1764                         statype = CFG80211_STA_AP_CLIENT;
1765                 else
1766                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1767                 break;
1768         default:
1769                 err = -EOPNOTSUPP;
1770                 goto out_err;
1771         }
1772
1773         err = cfg80211_check_station_change(wiphy, params, statype);
1774         if (err)
1775                 goto out_err;
1776
1777         if (params->vlan && params->vlan != sta->sdata->dev) {
1778                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1779
1780                 if (params->vlan->ieee80211_ptr->use_4addr) {
1781                         if (vlansdata->u.vlan.sta) {
1782                                 err = -EBUSY;
1783                                 goto out_err;
1784                         }
1785
1786                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1787                         __ieee80211_check_fast_rx_iface(vlansdata);
1788                         drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1789                 }
1790
1791                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1792                     sta->sdata->u.vlan.sta)
1793                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1794
1795                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1796                         ieee80211_vif_dec_num_mcast(sta->sdata);
1797
1798                 sta->sdata = vlansdata;
1799                 ieee80211_check_fast_xmit(sta);
1800
1801                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1802                         ieee80211_vif_inc_num_mcast(sta->sdata);
1803                         cfg80211_send_layer2_update(sta->sdata->dev,
1804                                                     sta->sta.addr);
1805                 }
1806         }
1807
1808         err = sta_apply_parameters(local, sta, params);
1809         if (err)
1810                 goto out_err;
1811
1812         mutex_unlock(&local->sta_mtx);
1813
1814         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1815             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1816                 ieee80211_recalc_ps(local);
1817                 ieee80211_recalc_ps_vif(sdata);
1818         }
1819
1820         return 0;
1821 out_err:
1822         mutex_unlock(&local->sta_mtx);
1823         return err;
1824 }
1825
1826 #ifdef CONFIG_MAC80211_MESH
1827 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1828                                const u8 *dst, const u8 *next_hop)
1829 {
1830         struct ieee80211_sub_if_data *sdata;
1831         struct mesh_path *mpath;
1832         struct sta_info *sta;
1833
1834         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1835
1836         rcu_read_lock();
1837         sta = sta_info_get(sdata, next_hop);
1838         if (!sta) {
1839                 rcu_read_unlock();
1840                 return -ENOENT;
1841         }
1842
1843         mpath = mesh_path_add(sdata, dst);
1844         if (IS_ERR(mpath)) {
1845                 rcu_read_unlock();
1846                 return PTR_ERR(mpath);
1847         }
1848
1849         mesh_path_fix_nexthop(mpath, sta);
1850
1851         rcu_read_unlock();
1852         return 0;
1853 }
1854
1855 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1856                                const u8 *dst)
1857 {
1858         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1859
1860         if (dst)
1861                 return mesh_path_del(sdata, dst);
1862
1863         mesh_path_flush_by_iface(sdata);
1864         return 0;
1865 }
1866
1867 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1868                                   const u8 *dst, const u8 *next_hop)
1869 {
1870         struct ieee80211_sub_if_data *sdata;
1871         struct mesh_path *mpath;
1872         struct sta_info *sta;
1873
1874         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1875
1876         rcu_read_lock();
1877
1878         sta = sta_info_get(sdata, next_hop);
1879         if (!sta) {
1880                 rcu_read_unlock();
1881                 return -ENOENT;
1882         }
1883
1884         mpath = mesh_path_lookup(sdata, dst);
1885         if (!mpath) {
1886                 rcu_read_unlock();
1887                 return -ENOENT;
1888         }
1889
1890         mesh_path_fix_nexthop(mpath, sta);
1891
1892         rcu_read_unlock();
1893         return 0;
1894 }
1895
1896 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1897                             struct mpath_info *pinfo)
1898 {
1899         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1900
1901         if (next_hop_sta)
1902                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1903         else
1904                 eth_zero_addr(next_hop);
1905
1906         memset(pinfo, 0, sizeof(*pinfo));
1907
1908         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1909
1910         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1911                         MPATH_INFO_SN |
1912                         MPATH_INFO_METRIC |
1913                         MPATH_INFO_EXPTIME |
1914                         MPATH_INFO_DISCOVERY_TIMEOUT |
1915                         MPATH_INFO_DISCOVERY_RETRIES |
1916                         MPATH_INFO_FLAGS |
1917                         MPATH_INFO_HOP_COUNT |
1918                         MPATH_INFO_PATH_CHANGE;
1919
1920         pinfo->frame_qlen = mpath->frame_queue.qlen;
1921         pinfo->sn = mpath->sn;
1922         pinfo->metric = mpath->metric;
1923         if (time_before(jiffies, mpath->exp_time))
1924                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1925         pinfo->discovery_timeout =
1926                         jiffies_to_msecs(mpath->discovery_timeout);
1927         pinfo->discovery_retries = mpath->discovery_retries;
1928         if (mpath->flags & MESH_PATH_ACTIVE)
1929                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1930         if (mpath->flags & MESH_PATH_RESOLVING)
1931                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1932         if (mpath->flags & MESH_PATH_SN_VALID)
1933                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1934         if (mpath->flags & MESH_PATH_FIXED)
1935                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1936         if (mpath->flags & MESH_PATH_RESOLVED)
1937                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1938         pinfo->hop_count = mpath->hop_count;
1939         pinfo->path_change_count = mpath->path_change_count;
1940 }
1941
1942 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1943                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1944
1945 {
1946         struct ieee80211_sub_if_data *sdata;
1947         struct mesh_path *mpath;
1948
1949         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1950
1951         rcu_read_lock();
1952         mpath = mesh_path_lookup(sdata, dst);
1953         if (!mpath) {
1954                 rcu_read_unlock();
1955                 return -ENOENT;
1956         }
1957         memcpy(dst, mpath->dst, ETH_ALEN);
1958         mpath_set_pinfo(mpath, next_hop, pinfo);
1959         rcu_read_unlock();
1960         return 0;
1961 }
1962
1963 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1964                                 int idx, u8 *dst, u8 *next_hop,
1965                                 struct mpath_info *pinfo)
1966 {
1967         struct ieee80211_sub_if_data *sdata;
1968         struct mesh_path *mpath;
1969
1970         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1971
1972         rcu_read_lock();
1973         mpath = mesh_path_lookup_by_idx(sdata, idx);
1974         if (!mpath) {
1975                 rcu_read_unlock();
1976                 return -ENOENT;
1977         }
1978         memcpy(dst, mpath->dst, ETH_ALEN);
1979         mpath_set_pinfo(mpath, next_hop, pinfo);
1980         rcu_read_unlock();
1981         return 0;
1982 }
1983
1984 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1985                           struct mpath_info *pinfo)
1986 {
1987         memset(pinfo, 0, sizeof(*pinfo));
1988         memcpy(mpp, mpath->mpp, ETH_ALEN);
1989
1990         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1991 }
1992
1993 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1994                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1995
1996 {
1997         struct ieee80211_sub_if_data *sdata;
1998         struct mesh_path *mpath;
1999
2000         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2001
2002         rcu_read_lock();
2003         mpath = mpp_path_lookup(sdata, dst);
2004         if (!mpath) {
2005                 rcu_read_unlock();
2006                 return -ENOENT;
2007         }
2008         memcpy(dst, mpath->dst, ETH_ALEN);
2009         mpp_set_pinfo(mpath, mpp, pinfo);
2010         rcu_read_unlock();
2011         return 0;
2012 }
2013
2014 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2015                               int idx, u8 *dst, u8 *mpp,
2016                               struct mpath_info *pinfo)
2017 {
2018         struct ieee80211_sub_if_data *sdata;
2019         struct mesh_path *mpath;
2020
2021         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2022
2023         rcu_read_lock();
2024         mpath = mpp_path_lookup_by_idx(sdata, idx);
2025         if (!mpath) {
2026                 rcu_read_unlock();
2027                 return -ENOENT;
2028         }
2029         memcpy(dst, mpath->dst, ETH_ALEN);
2030         mpp_set_pinfo(mpath, mpp, pinfo);
2031         rcu_read_unlock();
2032         return 0;
2033 }
2034
2035 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2036                                 struct net_device *dev,
2037                                 struct mesh_config *conf)
2038 {
2039         struct ieee80211_sub_if_data *sdata;
2040         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2041
2042         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2043         return 0;
2044 }
2045
2046 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2047 {
2048         return (mask >> (parm-1)) & 0x1;
2049 }
2050
2051 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2052                 const struct mesh_setup *setup)
2053 {
2054         u8 *new_ie;
2055         const u8 *old_ie;
2056         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2057                                         struct ieee80211_sub_if_data, u.mesh);
2058         int i;
2059
2060         /* allocate information elements */
2061         new_ie = NULL;
2062         old_ie = ifmsh->ie;
2063
2064         if (setup->ie_len) {
2065                 new_ie = kmemdup(setup->ie, setup->ie_len,
2066                                 GFP_KERNEL);
2067                 if (!new_ie)
2068                         return -ENOMEM;
2069         }
2070         ifmsh->ie_len = setup->ie_len;
2071         ifmsh->ie = new_ie;
2072         kfree(old_ie);
2073
2074         /* now copy the rest of the setup parameters */
2075         ifmsh->mesh_id_len = setup->mesh_id_len;
2076         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2077         ifmsh->mesh_sp_id = setup->sync_method;
2078         ifmsh->mesh_pp_id = setup->path_sel_proto;
2079         ifmsh->mesh_pm_id = setup->path_metric;
2080         ifmsh->user_mpm = setup->user_mpm;
2081         ifmsh->mesh_auth_id = setup->auth_id;
2082         ifmsh->security = IEEE80211_MESH_SEC_NONE;
2083         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2084         if (setup->is_authenticated)
2085                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2086         if (setup->is_secure)
2087                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2088
2089         /* mcast rate setting in Mesh Node */
2090         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2091                                                 sizeof(setup->mcast_rate));
2092         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2093
2094         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2095         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2096
2097         sdata->beacon_rate_set = false;
2098         if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2099                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2100                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2101                         sdata->beacon_rateidx_mask[i] =
2102                                 setup->beacon_rate.control[i].legacy;
2103                         if (sdata->beacon_rateidx_mask[i])
2104                                 sdata->beacon_rate_set = true;
2105                 }
2106         }
2107
2108         return 0;
2109 }
2110
2111 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2112                                         struct net_device *dev, u32 mask,
2113                                         const struct mesh_config *nconf)
2114 {
2115         struct mesh_config *conf;
2116         struct ieee80211_sub_if_data *sdata;
2117         struct ieee80211_if_mesh *ifmsh;
2118
2119         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2120         ifmsh = &sdata->u.mesh;
2121
2122         /* Set the config options which we are interested in setting */
2123         conf = &(sdata->u.mesh.mshcfg);
2124         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2125                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2126         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2127                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2128         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2129                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2130         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2131                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2132         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2133                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2134         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2135                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2136         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2137                 conf->element_ttl = nconf->element_ttl;
2138         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2139                 if (ifmsh->user_mpm)
2140                         return -EBUSY;
2141                 conf->auto_open_plinks = nconf->auto_open_plinks;
2142         }
2143         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2144                 conf->dot11MeshNbrOffsetMaxNeighbor =
2145                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2146         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2147                 conf->dot11MeshHWMPmaxPREQretries =
2148                         nconf->dot11MeshHWMPmaxPREQretries;
2149         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2150                 conf->path_refresh_time = nconf->path_refresh_time;
2151         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2152                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2153         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2154                 conf->dot11MeshHWMPactivePathTimeout =
2155                         nconf->dot11MeshHWMPactivePathTimeout;
2156         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2157                 conf->dot11MeshHWMPpreqMinInterval =
2158                         nconf->dot11MeshHWMPpreqMinInterval;
2159         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2160                 conf->dot11MeshHWMPperrMinInterval =
2161                         nconf->dot11MeshHWMPperrMinInterval;
2162         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2163                            mask))
2164                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2165                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2166         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2167                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2168                 ieee80211_mesh_root_setup(ifmsh);
2169         }
2170         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2171                 /* our current gate announcement implementation rides on root
2172                  * announcements, so require this ifmsh to also be a root node
2173                  * */
2174                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2175                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2176                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2177                         ieee80211_mesh_root_setup(ifmsh);
2178                 }
2179                 conf->dot11MeshGateAnnouncementProtocol =
2180                         nconf->dot11MeshGateAnnouncementProtocol;
2181         }
2182         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2183                 conf->dot11MeshHWMPRannInterval =
2184                         nconf->dot11MeshHWMPRannInterval;
2185         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2186                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2187         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2188                 /* our RSSI threshold implementation is supported only for
2189                  * devices that report signal in dBm.
2190                  */
2191                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2192                         return -ENOTSUPP;
2193                 conf->rssi_threshold = nconf->rssi_threshold;
2194         }
2195         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2196                 conf->ht_opmode = nconf->ht_opmode;
2197                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2198                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2199         }
2200         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2201                 conf->dot11MeshHWMPactivePathToRootTimeout =
2202                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2203         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2204                 conf->dot11MeshHWMProotInterval =
2205                         nconf->dot11MeshHWMProotInterval;
2206         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2207                 conf->dot11MeshHWMPconfirmationInterval =
2208                         nconf->dot11MeshHWMPconfirmationInterval;
2209         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2210                 conf->power_mode = nconf->power_mode;
2211                 ieee80211_mps_local_status_update(sdata);
2212         }
2213         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2214                 conf->dot11MeshAwakeWindowDuration =
2215                         nconf->dot11MeshAwakeWindowDuration;
2216         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2217                 conf->plink_timeout = nconf->plink_timeout;
2218         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2219                 conf->dot11MeshConnectedToMeshGate =
2220                         nconf->dot11MeshConnectedToMeshGate;
2221         if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2222                 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2223         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2224                 conf->dot11MeshConnectedToAuthServer =
2225                         nconf->dot11MeshConnectedToAuthServer;
2226         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2227         return 0;
2228 }
2229
2230 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2231                                const struct mesh_config *conf,
2232                                const struct mesh_setup *setup)
2233 {
2234         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2235         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2236         int err;
2237
2238         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2239         err = copy_mesh_setup(ifmsh, setup);
2240         if (err)
2241                 return err;
2242
2243         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2244
2245         /* can mesh use other SMPS modes? */
2246         sdata->smps_mode = IEEE80211_SMPS_OFF;
2247         sdata->needed_rx_chains = sdata->local->rx_chains;
2248
2249         mutex_lock(&sdata->local->mtx);
2250         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2251                                         IEEE80211_CHANCTX_SHARED);
2252         mutex_unlock(&sdata->local->mtx);
2253         if (err)
2254                 return err;
2255
2256         return ieee80211_start_mesh(sdata);
2257 }
2258
2259 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2260 {
2261         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2262
2263         ieee80211_stop_mesh(sdata);
2264         mutex_lock(&sdata->local->mtx);
2265         ieee80211_vif_release_channel(sdata);
2266         kfree(sdata->u.mesh.ie);
2267         mutex_unlock(&sdata->local->mtx);
2268
2269         return 0;
2270 }
2271 #endif
2272
2273 static int ieee80211_change_bss(struct wiphy *wiphy,
2274                                 struct net_device *dev,
2275                                 struct bss_parameters *params)
2276 {
2277         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2278         struct ieee80211_supported_band *sband;
2279         u32 changed = 0;
2280
2281         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2282                 return -ENOENT;
2283
2284         sband = ieee80211_get_sband(sdata);
2285         if (!sband)
2286                 return -EINVAL;
2287
2288         if (params->use_cts_prot >= 0) {
2289                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2290                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2291         }
2292         if (params->use_short_preamble >= 0) {
2293                 sdata->vif.bss_conf.use_short_preamble =
2294                         params->use_short_preamble;
2295                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2296         }
2297
2298         if (!sdata->vif.bss_conf.use_short_slot &&
2299             (sband->band == NL80211_BAND_5GHZ ||
2300              sband->band == NL80211_BAND_6GHZ)) {
2301                 sdata->vif.bss_conf.use_short_slot = true;
2302                 changed |= BSS_CHANGED_ERP_SLOT;
2303         }
2304
2305         if (params->use_short_slot_time >= 0) {
2306                 sdata->vif.bss_conf.use_short_slot =
2307                         params->use_short_slot_time;
2308                 changed |= BSS_CHANGED_ERP_SLOT;
2309         }
2310
2311         if (params->basic_rates) {
2312                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2313                                          wiphy->bands[sband->band],
2314                                          params->basic_rates,
2315                                          params->basic_rates_len,
2316                                          &sdata->vif.bss_conf.basic_rates);
2317                 changed |= BSS_CHANGED_BASIC_RATES;
2318                 ieee80211_check_rate_mask(sdata);
2319         }
2320
2321         if (params->ap_isolate >= 0) {
2322                 if (params->ap_isolate)
2323                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2324                 else
2325                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2326                 ieee80211_check_fast_rx_iface(sdata);
2327         }
2328
2329         if (params->ht_opmode >= 0) {
2330                 sdata->vif.bss_conf.ht_operation_mode =
2331                         (u16) params->ht_opmode;
2332                 changed |= BSS_CHANGED_HT;
2333         }
2334
2335         if (params->p2p_ctwindow >= 0) {
2336                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2337                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2338                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2339                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2340                 changed |= BSS_CHANGED_P2P_PS;
2341         }
2342
2343         if (params->p2p_opp_ps > 0) {
2344                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2345                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2346                 changed |= BSS_CHANGED_P2P_PS;
2347         } else if (params->p2p_opp_ps == 0) {
2348                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2349                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2350                 changed |= BSS_CHANGED_P2P_PS;
2351         }
2352
2353         ieee80211_bss_info_change_notify(sdata, changed);
2354
2355         return 0;
2356 }
2357
2358 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2359                                     struct net_device *dev,
2360                                     struct ieee80211_txq_params *params)
2361 {
2362         struct ieee80211_local *local = wiphy_priv(wiphy);
2363         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2364         struct ieee80211_tx_queue_params p;
2365
2366         if (!local->ops->conf_tx)
2367                 return -EOPNOTSUPP;
2368
2369         if (local->hw.queues < IEEE80211_NUM_ACS)
2370                 return -EOPNOTSUPP;
2371
2372         memset(&p, 0, sizeof(p));
2373         p.aifs = params->aifs;
2374         p.cw_max = params->cwmax;
2375         p.cw_min = params->cwmin;
2376         p.txop = params->txop;
2377
2378         /*
2379          * Setting tx queue params disables u-apsd because it's only
2380          * called in master mode.
2381          */
2382         p.uapsd = false;
2383
2384         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2385
2386         sdata->tx_conf[params->ac] = p;
2387         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2388                 wiphy_debug(local->hw.wiphy,
2389                             "failed to set TX queue parameters for AC %d\n",
2390                             params->ac);
2391                 return -EINVAL;
2392         }
2393
2394         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2395
2396         return 0;
2397 }
2398
2399 #ifdef CONFIG_PM
2400 static int ieee80211_suspend(struct wiphy *wiphy,
2401                              struct cfg80211_wowlan *wowlan)
2402 {
2403         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2404 }
2405
2406 static int ieee80211_resume(struct wiphy *wiphy)
2407 {
2408         return __ieee80211_resume(wiphy_priv(wiphy));
2409 }
2410 #else
2411 #define ieee80211_suspend NULL
2412 #define ieee80211_resume NULL
2413 #endif
2414
2415 static int ieee80211_scan(struct wiphy *wiphy,
2416                           struct cfg80211_scan_request *req)
2417 {
2418         struct ieee80211_sub_if_data *sdata;
2419
2420         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2421
2422         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2423         case NL80211_IFTYPE_STATION:
2424         case NL80211_IFTYPE_ADHOC:
2425         case NL80211_IFTYPE_MESH_POINT:
2426         case NL80211_IFTYPE_P2P_CLIENT:
2427         case NL80211_IFTYPE_P2P_DEVICE:
2428                 break;
2429         case NL80211_IFTYPE_P2P_GO:
2430                 if (sdata->local->ops->hw_scan)
2431                         break;
2432                 /*
2433                  * FIXME: implement NoA while scanning in software,
2434                  * for now fall through to allow scanning only when
2435                  * beaconing hasn't been configured yet
2436                  */
2437                 fallthrough;
2438         case NL80211_IFTYPE_AP:
2439                 /*
2440                  * If the scan has been forced (and the driver supports
2441                  * forcing), don't care about being beaconing already.
2442                  * This will create problems to the attached stations (e.g. all
2443                  * the  frames sent while scanning on other channel will be
2444                  * lost)
2445                  */
2446                 if (sdata->u.ap.beacon &&
2447                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2448                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2449                         return -EOPNOTSUPP;
2450                 break;
2451         case NL80211_IFTYPE_NAN:
2452         default:
2453                 return -EOPNOTSUPP;
2454         }
2455
2456         return ieee80211_request_scan(sdata, req);
2457 }
2458
2459 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2460 {
2461         ieee80211_scan_cancel(wiphy_priv(wiphy));
2462 }
2463
2464 static int
2465 ieee80211_sched_scan_start(struct wiphy *wiphy,
2466                            struct net_device *dev,
2467                            struct cfg80211_sched_scan_request *req)
2468 {
2469         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2470
2471         if (!sdata->local->ops->sched_scan_start)
2472                 return -EOPNOTSUPP;
2473
2474         return ieee80211_request_sched_scan_start(sdata, req);
2475 }
2476
2477 static int
2478 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2479                           u64 reqid)
2480 {
2481         struct ieee80211_local *local = wiphy_priv(wiphy);
2482
2483         if (!local->ops->sched_scan_stop)
2484                 return -EOPNOTSUPP;
2485
2486         return ieee80211_request_sched_scan_stop(local);
2487 }
2488
2489 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2490                           struct cfg80211_auth_request *req)
2491 {
2492         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2493 }
2494
2495 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2496                            struct cfg80211_assoc_request *req)
2497 {
2498         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2499 }
2500
2501 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2502                             struct cfg80211_deauth_request *req)
2503 {
2504         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2505 }
2506
2507 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2508                               struct cfg80211_disassoc_request *req)
2509 {
2510         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2511 }
2512
2513 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2514                                struct cfg80211_ibss_params *params)
2515 {
2516         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2517 }
2518
2519 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2520 {
2521         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2522 }
2523
2524 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2525                               struct ocb_setup *setup)
2526 {
2527         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2528 }
2529
2530 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2531 {
2532         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2533 }
2534
2535 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2536                                     int rate[NUM_NL80211_BANDS])
2537 {
2538         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2539
2540         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2541                sizeof(int) * NUM_NL80211_BANDS);
2542
2543         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2544
2545         return 0;
2546 }
2547
2548 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2549 {
2550         struct ieee80211_local *local = wiphy_priv(wiphy);
2551         int err;
2552
2553         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2554                 ieee80211_check_fast_xmit_all(local);
2555
2556                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2557
2558                 if (err) {
2559                         ieee80211_check_fast_xmit_all(local);
2560                         return err;
2561                 }
2562         }
2563
2564         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2565             (changed & WIPHY_PARAM_DYN_ACK)) {
2566                 s16 coverage_class;
2567
2568                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2569                                         wiphy->coverage_class : -1;
2570                 err = drv_set_coverage_class(local, coverage_class);
2571
2572                 if (err)
2573                         return err;
2574         }
2575
2576         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2577                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2578
2579                 if (err)
2580                         return err;
2581         }
2582
2583         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2584                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2585                         return -EINVAL;
2586                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2587         }
2588         if (changed & WIPHY_PARAM_RETRY_LONG) {
2589                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2590                         return -EINVAL;
2591                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2592         }
2593         if (changed &
2594             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2595                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2596
2597         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2598                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2599                        WIPHY_PARAM_TXQ_QUANTUM))
2600                 ieee80211_txq_set_params(local);
2601
2602         return 0;
2603 }
2604
2605 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2606                                   struct wireless_dev *wdev,
2607                                   enum nl80211_tx_power_setting type, int mbm)
2608 {
2609         struct ieee80211_local *local = wiphy_priv(wiphy);
2610         struct ieee80211_sub_if_data *sdata;
2611         enum nl80211_tx_power_setting txp_type = type;
2612         bool update_txp_type = false;
2613         bool has_monitor = false;
2614
2615         if (wdev) {
2616                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2617
2618                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2619                         sdata = rtnl_dereference(local->monitor_sdata);
2620                         if (!sdata)
2621                                 return -EOPNOTSUPP;
2622                 }
2623
2624                 switch (type) {
2625                 case NL80211_TX_POWER_AUTOMATIC:
2626                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2627                         txp_type = NL80211_TX_POWER_LIMITED;
2628                         break;
2629                 case NL80211_TX_POWER_LIMITED:
2630                 case NL80211_TX_POWER_FIXED:
2631                         if (mbm < 0 || (mbm % 100))
2632                                 return -EOPNOTSUPP;
2633                         sdata->user_power_level = MBM_TO_DBM(mbm);
2634                         break;
2635                 }
2636
2637                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2638                         update_txp_type = true;
2639                         sdata->vif.bss_conf.txpower_type = txp_type;
2640                 }
2641
2642                 ieee80211_recalc_txpower(sdata, update_txp_type);
2643
2644                 return 0;
2645         }
2646
2647         switch (type) {
2648         case NL80211_TX_POWER_AUTOMATIC:
2649                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2650                 txp_type = NL80211_TX_POWER_LIMITED;
2651                 break;
2652         case NL80211_TX_POWER_LIMITED:
2653         case NL80211_TX_POWER_FIXED:
2654                 if (mbm < 0 || (mbm % 100))
2655                         return -EOPNOTSUPP;
2656                 local->user_power_level = MBM_TO_DBM(mbm);
2657                 break;
2658         }
2659
2660         mutex_lock(&local->iflist_mtx);
2661         list_for_each_entry(sdata, &local->interfaces, list) {
2662                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2663                         has_monitor = true;
2664                         continue;
2665                 }
2666                 sdata->user_power_level = local->user_power_level;
2667                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2668                         update_txp_type = true;
2669                 sdata->vif.bss_conf.txpower_type = txp_type;
2670         }
2671         list_for_each_entry(sdata, &local->interfaces, list) {
2672                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2673                         continue;
2674                 ieee80211_recalc_txpower(sdata, update_txp_type);
2675         }
2676         mutex_unlock(&local->iflist_mtx);
2677
2678         if (has_monitor) {
2679                 sdata = rtnl_dereference(local->monitor_sdata);
2680                 if (sdata) {
2681                         sdata->user_power_level = local->user_power_level;
2682                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2683                                 update_txp_type = true;
2684                         sdata->vif.bss_conf.txpower_type = txp_type;
2685
2686                         ieee80211_recalc_txpower(sdata, update_txp_type);
2687                 }
2688         }
2689
2690         return 0;
2691 }
2692
2693 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2694                                   struct wireless_dev *wdev,
2695                                   int *dbm)
2696 {
2697         struct ieee80211_local *local = wiphy_priv(wiphy);
2698         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2699
2700         if (local->ops->get_txpower)
2701                 return drv_get_txpower(local, sdata, dbm);
2702
2703         if (!local->use_chanctx)
2704                 *dbm = local->hw.conf.power_level;
2705         else
2706                 *dbm = sdata->vif.bss_conf.txpower;
2707
2708         return 0;
2709 }
2710
2711 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2712                                   const u8 *addr)
2713 {
2714         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2715
2716         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2717
2718         return 0;
2719 }
2720
2721 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2722 {
2723         struct ieee80211_local *local = wiphy_priv(wiphy);
2724
2725         drv_rfkill_poll(local);
2726 }
2727
2728 #ifdef CONFIG_NL80211_TESTMODE
2729 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2730                                   struct wireless_dev *wdev,
2731                                   void *data, int len)
2732 {
2733         struct ieee80211_local *local = wiphy_priv(wiphy);
2734         struct ieee80211_vif *vif = NULL;
2735
2736         if (!local->ops->testmode_cmd)
2737                 return -EOPNOTSUPP;
2738
2739         if (wdev) {
2740                 struct ieee80211_sub_if_data *sdata;
2741
2742                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2743                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2744                         vif = &sdata->vif;
2745         }
2746
2747         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2748 }
2749
2750 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2751                                    struct sk_buff *skb,
2752                                    struct netlink_callback *cb,
2753                                    void *data, int len)
2754 {
2755         struct ieee80211_local *local = wiphy_priv(wiphy);
2756
2757         if (!local->ops->testmode_dump)
2758                 return -EOPNOTSUPP;
2759
2760         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2761 }
2762 #endif
2763
2764 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2765                                  enum ieee80211_smps_mode smps_mode)
2766 {
2767         const u8 *ap;
2768         enum ieee80211_smps_mode old_req;
2769         int err;
2770         struct sta_info *sta;
2771         bool tdls_peer_found = false;
2772
2773         lockdep_assert_held(&sdata->wdev.mtx);
2774
2775         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2776                 return -EINVAL;
2777
2778         old_req = sdata->u.mgd.req_smps;
2779         sdata->u.mgd.req_smps = smps_mode;
2780
2781         if (old_req == smps_mode &&
2782             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2783                 return 0;
2784
2785         /*
2786          * If not associated, or current association is not an HT
2787          * association, there's no need to do anything, just store
2788          * the new value until we associate.
2789          */
2790         if (!sdata->u.mgd.associated ||
2791             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2792                 return 0;
2793
2794         ap = sdata->u.mgd.associated->bssid;
2795
2796         rcu_read_lock();
2797         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2798                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2799                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2800                         continue;
2801
2802                 tdls_peer_found = true;
2803                 break;
2804         }
2805         rcu_read_unlock();
2806
2807         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2808                 if (tdls_peer_found || !sdata->u.mgd.powersave)
2809                         smps_mode = IEEE80211_SMPS_OFF;
2810                 else
2811                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2812         }
2813
2814         /* send SM PS frame to AP */
2815         err = ieee80211_send_smps_action(sdata, smps_mode,
2816                                          ap, ap);
2817         if (err)
2818                 sdata->u.mgd.req_smps = old_req;
2819         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2820                 ieee80211_teardown_tdls_peers(sdata);
2821
2822         return err;
2823 }
2824
2825 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2826                                     bool enabled, int timeout)
2827 {
2828         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2829         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2830
2831         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2832                 return -EOPNOTSUPP;
2833
2834         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2835                 return -EOPNOTSUPP;
2836
2837         if (enabled == sdata->u.mgd.powersave &&
2838             timeout == local->dynamic_ps_forced_timeout)
2839                 return 0;
2840
2841         sdata->u.mgd.powersave = enabled;
2842         local->dynamic_ps_forced_timeout = timeout;
2843
2844         /* no change, but if automatic follow powersave */
2845         sdata_lock(sdata);
2846         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2847         sdata_unlock(sdata);
2848
2849         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2850                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2851
2852         ieee80211_recalc_ps(local);
2853         ieee80211_recalc_ps_vif(sdata);
2854         ieee80211_check_fast_rx_iface(sdata);
2855
2856         return 0;
2857 }
2858
2859 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2860                                          struct net_device *dev,
2861                                          s32 rssi_thold, u32 rssi_hyst)
2862 {
2863         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2864         struct ieee80211_vif *vif = &sdata->vif;
2865         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2866
2867         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2868             rssi_hyst == bss_conf->cqm_rssi_hyst)
2869                 return 0;
2870
2871         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2872             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2873                 return -EOPNOTSUPP;
2874
2875         bss_conf->cqm_rssi_thold = rssi_thold;
2876         bss_conf->cqm_rssi_hyst = rssi_hyst;
2877         bss_conf->cqm_rssi_low = 0;
2878         bss_conf->cqm_rssi_high = 0;
2879         sdata->u.mgd.last_cqm_event_signal = 0;
2880
2881         /* tell the driver upon association, unless already associated */
2882         if (sdata->u.mgd.associated &&
2883             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2884                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2885
2886         return 0;
2887 }
2888
2889 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2890                                                struct net_device *dev,
2891                                                s32 rssi_low, s32 rssi_high)
2892 {
2893         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2894         struct ieee80211_vif *vif = &sdata->vif;
2895         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2896
2897         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2898                 return -EOPNOTSUPP;
2899
2900         bss_conf->cqm_rssi_low = rssi_low;
2901         bss_conf->cqm_rssi_high = rssi_high;
2902         bss_conf->cqm_rssi_thold = 0;
2903         bss_conf->cqm_rssi_hyst = 0;
2904         sdata->u.mgd.last_cqm_event_signal = 0;
2905
2906         /* tell the driver upon association, unless already associated */
2907         if (sdata->u.mgd.associated &&
2908             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2909                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2910
2911         return 0;
2912 }
2913
2914 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2915                                       struct net_device *dev,
2916                                       const u8 *addr,
2917                                       const struct cfg80211_bitrate_mask *mask)
2918 {
2919         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2920         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2921         int i, ret;
2922
2923         if (!ieee80211_sdata_running(sdata))
2924                 return -ENETDOWN;
2925
2926         /*
2927          * If active validate the setting and reject it if it doesn't leave
2928          * at least one basic rate usable, since we really have to be able
2929          * to send something, and if we're an AP we have to be able to do
2930          * so at a basic rate so that all clients can receive it.
2931          */
2932         if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2933             sdata->vif.bss_conf.chandef.chan) {
2934                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2935                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2936
2937                 if (!(mask->control[band].legacy & basic_rates))
2938                         return -EINVAL;
2939         }
2940
2941         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2942                 ret = drv_set_bitrate_mask(local, sdata, mask);
2943                 if (ret)
2944                         return ret;
2945         }
2946
2947         for (i = 0; i < NUM_NL80211_BANDS; i++) {
2948                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2949                 int j;
2950
2951                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2952                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2953                        sizeof(mask->control[i].ht_mcs));
2954                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2955                        mask->control[i].vht_mcs,
2956                        sizeof(mask->control[i].vht_mcs));
2957
2958                 sdata->rc_has_mcs_mask[i] = false;
2959                 sdata->rc_has_vht_mcs_mask[i] = false;
2960                 if (!sband)
2961                         continue;
2962
2963                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2964                         if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2965                                 sdata->rc_has_mcs_mask[i] = true;
2966                                 break;
2967                         }
2968                 }
2969
2970                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2971                         if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2972                                 sdata->rc_has_vht_mcs_mask[i] = true;
2973                                 break;
2974                         }
2975                 }
2976         }
2977
2978         return 0;
2979 }
2980
2981 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2982                                            struct net_device *dev,
2983                                            struct cfg80211_chan_def *chandef,
2984                                            u32 cac_time_ms)
2985 {
2986         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2987         struct ieee80211_local *local = sdata->local;
2988         int err;
2989
2990         mutex_lock(&local->mtx);
2991         if (!list_empty(&local->roc_list) || local->scanning) {
2992                 err = -EBUSY;
2993                 goto out_unlock;
2994         }
2995
2996         /* whatever, but channel contexts should not complain about that one */
2997         sdata->smps_mode = IEEE80211_SMPS_OFF;
2998         sdata->needed_rx_chains = local->rx_chains;
2999
3000         err = ieee80211_vif_use_channel(sdata, chandef,
3001                                         IEEE80211_CHANCTX_SHARED);
3002         if (err)
3003                 goto out_unlock;
3004
3005         ieee80211_queue_delayed_work(&sdata->local->hw,
3006                                      &sdata->dfs_cac_timer_work,
3007                                      msecs_to_jiffies(cac_time_ms));
3008
3009  out_unlock:
3010         mutex_unlock(&local->mtx);
3011         return err;
3012 }
3013
3014 static void ieee80211_end_cac(struct wiphy *wiphy,
3015                               struct net_device *dev)
3016 {
3017         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3018         struct ieee80211_local *local = sdata->local;
3019
3020         mutex_lock(&local->mtx);
3021         list_for_each_entry(sdata, &local->interfaces, list) {
3022                 /* it might be waiting for the local->mtx, but then
3023                  * by the time it gets it, sdata->wdev.cac_started
3024                  * will no longer be true
3025                  */
3026                 cancel_delayed_work(&sdata->dfs_cac_timer_work);
3027
3028                 if (sdata->wdev.cac_started) {
3029                         ieee80211_vif_release_channel(sdata);
3030                         sdata->wdev.cac_started = false;
3031                 }
3032         }
3033         mutex_unlock(&local->mtx);
3034 }
3035
3036 static struct cfg80211_beacon_data *
3037 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3038 {
3039         struct cfg80211_beacon_data *new_beacon;
3040         u8 *pos;
3041         int len;
3042
3043         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3044               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3045               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3046
3047         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3048         if (!new_beacon)
3049                 return NULL;
3050
3051         pos = (u8 *)(new_beacon + 1);
3052         if (beacon->head_len) {
3053                 new_beacon->head_len = beacon->head_len;
3054                 new_beacon->head = pos;
3055                 memcpy(pos, beacon->head, beacon->head_len);
3056                 pos += beacon->head_len;
3057         }
3058         if (beacon->tail_len) {
3059                 new_beacon->tail_len = beacon->tail_len;
3060                 new_beacon->tail = pos;
3061                 memcpy(pos, beacon->tail, beacon->tail_len);
3062                 pos += beacon->tail_len;
3063         }
3064         if (beacon->beacon_ies_len) {
3065                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3066                 new_beacon->beacon_ies = pos;
3067                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3068                 pos += beacon->beacon_ies_len;
3069         }
3070         if (beacon->proberesp_ies_len) {
3071                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3072                 new_beacon->proberesp_ies = pos;
3073                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3074                 pos += beacon->proberesp_ies_len;
3075         }
3076         if (beacon->assocresp_ies_len) {
3077                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3078                 new_beacon->assocresp_ies = pos;
3079                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3080                 pos += beacon->assocresp_ies_len;
3081         }
3082         if (beacon->probe_resp_len) {
3083                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3084                 new_beacon->probe_resp = pos;
3085                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3086                 pos += beacon->probe_resp_len;
3087         }
3088
3089         /* might copy -1, meaning no changes requested */
3090         new_beacon->ftm_responder = beacon->ftm_responder;
3091         if (beacon->lci) {
3092                 new_beacon->lci_len = beacon->lci_len;
3093                 new_beacon->lci = pos;
3094                 memcpy(pos, beacon->lci, beacon->lci_len);
3095                 pos += beacon->lci_len;
3096         }
3097         if (beacon->civicloc) {
3098                 new_beacon->civicloc_len = beacon->civicloc_len;
3099                 new_beacon->civicloc = pos;
3100                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3101                 pos += beacon->civicloc_len;
3102         }
3103
3104         return new_beacon;
3105 }
3106
3107 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3108 {
3109         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3110
3111         ieee80211_queue_work(&sdata->local->hw,
3112                              &sdata->csa_finalize_work);
3113 }
3114 EXPORT_SYMBOL(ieee80211_csa_finish);
3115
3116 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3117                                           u32 *changed)
3118 {
3119         int err;
3120
3121         switch (sdata->vif.type) {
3122         case NL80211_IFTYPE_AP:
3123                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3124                                               NULL);
3125                 kfree(sdata->u.ap.next_beacon);
3126                 sdata->u.ap.next_beacon = NULL;
3127
3128                 if (err < 0)
3129                         return err;
3130                 *changed |= err;
3131                 break;
3132         case NL80211_IFTYPE_ADHOC:
3133                 err = ieee80211_ibss_finish_csa(sdata);
3134                 if (err < 0)
3135                         return err;
3136                 *changed |= err;
3137                 break;
3138 #ifdef CONFIG_MAC80211_MESH
3139         case NL80211_IFTYPE_MESH_POINT:
3140                 err = ieee80211_mesh_finish_csa(sdata);
3141                 if (err < 0)
3142                         return err;
3143                 *changed |= err;
3144                 break;
3145 #endif
3146         default:
3147                 WARN_ON(1);
3148                 return -EINVAL;
3149         }
3150
3151         return 0;
3152 }
3153
3154 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3155 {
3156         struct ieee80211_local *local = sdata->local;
3157         u32 changed = 0;
3158         int err;
3159
3160         sdata_assert_lock(sdata);
3161         lockdep_assert_held(&local->mtx);
3162         lockdep_assert_held(&local->chanctx_mtx);
3163
3164         /*
3165          * using reservation isn't immediate as it may be deferred until later
3166          * with multi-vif. once reservation is complete it will re-schedule the
3167          * work with no reserved_chanctx so verify chandef to check if it
3168          * completed successfully
3169          */
3170
3171         if (sdata->reserved_chanctx) {
3172                 /*
3173                  * with multi-vif csa driver may call ieee80211_csa_finish()
3174                  * many times while waiting for other interfaces to use their
3175                  * reservations
3176                  */
3177                 if (sdata->reserved_ready)
3178                         return 0;
3179
3180                 return ieee80211_vif_use_reserved_context(sdata);
3181         }
3182
3183         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3184                                         &sdata->csa_chandef))
3185                 return -EINVAL;
3186
3187         sdata->vif.csa_active = false;
3188
3189         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3190         if (err)
3191                 return err;
3192
3193         ieee80211_bss_info_change_notify(sdata, changed);
3194
3195         if (sdata->csa_block_tx) {
3196                 ieee80211_wake_vif_queues(local, sdata,
3197                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3198                 sdata->csa_block_tx = false;
3199         }
3200
3201         err = drv_post_channel_switch(sdata);
3202         if (err)
3203                 return err;
3204
3205         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3206
3207         return 0;
3208 }
3209
3210 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3211 {
3212         if (__ieee80211_csa_finalize(sdata)) {
3213                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3214                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3215                                     GFP_KERNEL);
3216         }
3217 }
3218
3219 void ieee80211_csa_finalize_work(struct work_struct *work)
3220 {
3221         struct ieee80211_sub_if_data *sdata =
3222                 container_of(work, struct ieee80211_sub_if_data,
3223                              csa_finalize_work);
3224         struct ieee80211_local *local = sdata->local;
3225
3226         sdata_lock(sdata);
3227         mutex_lock(&local->mtx);
3228         mutex_lock(&local->chanctx_mtx);
3229
3230         /* AP might have been stopped while waiting for the lock. */
3231         if (!sdata->vif.csa_active)
3232                 goto unlock;
3233
3234         if (!ieee80211_sdata_running(sdata))
3235                 goto unlock;
3236
3237         ieee80211_csa_finalize(sdata);
3238
3239 unlock:
3240         mutex_unlock(&local->chanctx_mtx);
3241         mutex_unlock(&local->mtx);
3242         sdata_unlock(sdata);
3243 }
3244
3245 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3246                                     struct cfg80211_csa_settings *params,
3247                                     u32 *changed)
3248 {
3249         struct ieee80211_csa_settings csa = {};
3250         int err;
3251
3252         switch (sdata->vif.type) {
3253         case NL80211_IFTYPE_AP:
3254                 sdata->u.ap.next_beacon =
3255                         cfg80211_beacon_dup(&params->beacon_after);
3256                 if (!sdata->u.ap.next_beacon)
3257                         return -ENOMEM;
3258
3259                 /*
3260                  * With a count of 0, we don't have to wait for any
3261                  * TBTT before switching, so complete the CSA
3262                  * immediately.  In theory, with a count == 1 we
3263                  * should delay the switch until just before the next
3264                  * TBTT, but that would complicate things so we switch
3265                  * immediately too.  If we would delay the switch
3266                  * until the next TBTT, we would have to set the probe
3267                  * response here.
3268                  *
3269                  * TODO: A channel switch with count <= 1 without
3270                  * sending a CSA action frame is kind of useless,
3271                  * because the clients won't know we're changing
3272                  * channels.  The action frame must be implemented
3273                  * either here or in the userspace.
3274                  */
3275                 if (params->count <= 1)
3276                         break;
3277
3278                 if ((params->n_counter_offsets_beacon >
3279                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3280                     (params->n_counter_offsets_presp >
3281                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
3282                         return -EINVAL;
3283
3284                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3285                 csa.counter_offsets_presp = params->counter_offsets_presp;
3286                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3287                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3288                 csa.count = params->count;
3289
3290                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3291                 if (err < 0) {
3292                         kfree(sdata->u.ap.next_beacon);
3293                         return err;
3294                 }
3295                 *changed |= err;
3296
3297                 break;
3298         case NL80211_IFTYPE_ADHOC:
3299                 if (!sdata->vif.bss_conf.ibss_joined)
3300                         return -EINVAL;
3301
3302                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3303                         return -EINVAL;
3304
3305                 switch (params->chandef.width) {
3306                 case NL80211_CHAN_WIDTH_40:
3307                         if (cfg80211_get_chandef_type(&params->chandef) !=
3308                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3309                                 return -EINVAL;
3310                 case NL80211_CHAN_WIDTH_5:
3311                 case NL80211_CHAN_WIDTH_10:
3312                 case NL80211_CHAN_WIDTH_20_NOHT:
3313                 case NL80211_CHAN_WIDTH_20:
3314                         break;
3315                 default:
3316                         return -EINVAL;
3317                 }
3318
3319                 /* changes into another band are not supported */
3320                 if (sdata->u.ibss.chandef.chan->band !=
3321                     params->chandef.chan->band)
3322                         return -EINVAL;
3323
3324                 /* see comments in the NL80211_IFTYPE_AP block */
3325                 if (params->count > 1) {
3326                         err = ieee80211_ibss_csa_beacon(sdata, params);
3327                         if (err < 0)
3328                                 return err;
3329                         *changed |= err;
3330                 }
3331
3332                 ieee80211_send_action_csa(sdata, params);
3333
3334                 break;
3335 #ifdef CONFIG_MAC80211_MESH
3336         case NL80211_IFTYPE_MESH_POINT: {
3337                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3338
3339                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3340                         return -EINVAL;
3341
3342                 /* changes into another band are not supported */
3343                 if (sdata->vif.bss_conf.chandef.chan->band !=
3344                     params->chandef.chan->band)
3345                         return -EINVAL;
3346
3347                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3348                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3349                         if (!ifmsh->pre_value)
3350                                 ifmsh->pre_value = 1;
3351                         else
3352                                 ifmsh->pre_value++;
3353                 }
3354
3355                 /* see comments in the NL80211_IFTYPE_AP block */
3356                 if (params->count > 1) {
3357                         err = ieee80211_mesh_csa_beacon(sdata, params);
3358                         if (err < 0) {
3359                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3360                                 return err;
3361                         }
3362                         *changed |= err;
3363                 }
3364
3365                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3366                         ieee80211_send_action_csa(sdata, params);
3367
3368                 break;
3369                 }
3370 #endif
3371         default:
3372                 return -EOPNOTSUPP;
3373         }
3374
3375         return 0;
3376 }
3377
3378 static int
3379 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3380                            struct cfg80211_csa_settings *params)
3381 {
3382         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3383         struct ieee80211_local *local = sdata->local;
3384         struct ieee80211_channel_switch ch_switch;
3385         struct ieee80211_chanctx_conf *conf;
3386         struct ieee80211_chanctx *chanctx;
3387         u32 changed = 0;
3388         int err;
3389
3390         sdata_assert_lock(sdata);
3391         lockdep_assert_held(&local->mtx);
3392
3393         if (!list_empty(&local->roc_list) || local->scanning)
3394                 return -EBUSY;
3395
3396         if (sdata->wdev.cac_started)
3397                 return -EBUSY;
3398
3399         if (cfg80211_chandef_identical(&params->chandef,
3400                                        &sdata->vif.bss_conf.chandef))
3401                 return -EINVAL;
3402
3403         /* don't allow another channel switch if one is already active. */
3404         if (sdata->vif.csa_active)
3405                 return -EBUSY;
3406
3407         mutex_lock(&local->chanctx_mtx);
3408         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3409                                          lockdep_is_held(&local->chanctx_mtx));
3410         if (!conf) {
3411                 err = -EBUSY;
3412                 goto out;
3413         }
3414
3415         if (params->chandef.chan->freq_offset) {
3416                 /* this may work, but is untested */
3417                 err = -EOPNOTSUPP;
3418                 goto out;
3419         }
3420
3421         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3422
3423         ch_switch.timestamp = 0;
3424         ch_switch.device_timestamp = 0;
3425         ch_switch.block_tx = params->block_tx;
3426         ch_switch.chandef = params->chandef;
3427         ch_switch.count = params->count;
3428
3429         err = drv_pre_channel_switch(sdata, &ch_switch);
3430         if (err)
3431                 goto out;
3432
3433         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3434                                             chanctx->mode,
3435                                             params->radar_required);
3436         if (err)
3437                 goto out;
3438
3439         /* if reservation is invalid then this will fail */
3440         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3441         if (err) {
3442                 ieee80211_vif_unreserve_chanctx(sdata);
3443                 goto out;
3444         }
3445
3446         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3447         if (err) {
3448                 ieee80211_vif_unreserve_chanctx(sdata);
3449                 goto out;
3450         }
3451
3452         sdata->csa_chandef = params->chandef;
3453         sdata->csa_block_tx = params->block_tx;
3454         sdata->vif.csa_active = true;
3455
3456         if (sdata->csa_block_tx)
3457                 ieee80211_stop_vif_queues(local, sdata,
3458                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3459
3460         cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3461                                           params->count);
3462
3463         if (changed) {
3464                 ieee80211_bss_info_change_notify(sdata, changed);
3465                 drv_channel_switch_beacon(sdata, &params->chandef);
3466         } else {
3467                 /* if the beacon didn't change, we can finalize immediately */
3468                 ieee80211_csa_finalize(sdata);
3469         }
3470
3471 out:
3472         mutex_unlock(&local->chanctx_mtx);
3473         return err;
3474 }
3475
3476 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3477                              struct cfg80211_csa_settings *params)
3478 {
3479         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3480         struct ieee80211_local *local = sdata->local;
3481         int err;
3482
3483         mutex_lock(&local->mtx);
3484         err = __ieee80211_channel_switch(wiphy, dev, params);
3485         mutex_unlock(&local->mtx);
3486
3487         return err;
3488 }
3489
3490 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3491 {
3492         lockdep_assert_held(&local->mtx);
3493
3494         local->roc_cookie_counter++;
3495
3496         /* wow, you wrapped 64 bits ... more likely a bug */
3497         if (WARN_ON(local->roc_cookie_counter == 0))
3498                 local->roc_cookie_counter++;
3499
3500         return local->roc_cookie_counter;
3501 }
3502
3503 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3504                              u64 *cookie, gfp_t gfp)
3505 {
3506         unsigned long spin_flags;
3507         struct sk_buff *ack_skb;
3508         int id;
3509
3510         ack_skb = skb_copy(skb, gfp);
3511         if (!ack_skb)
3512                 return -ENOMEM;
3513
3514         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3515         id = idr_alloc(&local->ack_status_frames, ack_skb,
3516                        1, 0x2000, GFP_ATOMIC);
3517         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3518
3519         if (id < 0) {
3520                 kfree_skb(ack_skb);
3521                 return -ENOMEM;
3522         }
3523
3524         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3525
3526         *cookie = ieee80211_mgmt_tx_cookie(local);
3527         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3528
3529         return 0;
3530 }
3531
3532 static void
3533 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3534                                           struct wireless_dev *wdev,
3535                                           struct mgmt_frame_regs *upd)
3536 {
3537         struct ieee80211_local *local = wiphy_priv(wiphy);
3538         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3539         u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3540         u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3541         bool global_change, intf_change;
3542
3543         global_change =
3544                 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3545                 (local->rx_mcast_action_reg !=
3546                  !!(upd->global_mcast_stypes & action_mask));
3547         local->probe_req_reg = upd->global_stypes & preq_mask;
3548         local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3549
3550         intf_change = (sdata->vif.probe_req_reg !=
3551                        !!(upd->interface_stypes & preq_mask)) ||
3552                 (sdata->vif.rx_mcast_action_reg !=
3553                  !!(upd->interface_mcast_stypes & action_mask));
3554         sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3555         sdata->vif.rx_mcast_action_reg =
3556                 upd->interface_mcast_stypes & action_mask;
3557
3558         if (!local->open_count)
3559                 return;
3560
3561         if (intf_change && ieee80211_sdata_running(sdata))
3562                 drv_config_iface_filter(local, sdata,
3563                                         sdata->vif.probe_req_reg ?
3564                                                 FIF_PROBE_REQ : 0,
3565                                         FIF_PROBE_REQ);
3566
3567         if (global_change)
3568                 ieee80211_configure_filter(local);
3569 }
3570
3571 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3572 {
3573         struct ieee80211_local *local = wiphy_priv(wiphy);
3574
3575         if (local->started)
3576                 return -EOPNOTSUPP;
3577
3578         return drv_set_antenna(local, tx_ant, rx_ant);
3579 }
3580
3581 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3582 {
3583         struct ieee80211_local *local = wiphy_priv(wiphy);
3584
3585         return drv_get_antenna(local, tx_ant, rx_ant);
3586 }
3587
3588 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3589                                     struct net_device *dev,
3590                                     struct cfg80211_gtk_rekey_data *data)
3591 {
3592         struct ieee80211_local *local = wiphy_priv(wiphy);
3593         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3594
3595         if (!local->ops->set_rekey_data)
3596                 return -EOPNOTSUPP;
3597
3598         drv_set_rekey_data(local, sdata, data);
3599
3600         return 0;
3601 }
3602
3603 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3604                                   const u8 *peer, u64 *cookie)
3605 {
3606         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3607         struct ieee80211_local *local = sdata->local;
3608         struct ieee80211_qos_hdr *nullfunc;
3609         struct sk_buff *skb;
3610         int size = sizeof(*nullfunc);
3611         __le16 fc;
3612         bool qos;
3613         struct ieee80211_tx_info *info;
3614         struct sta_info *sta;
3615         struct ieee80211_chanctx_conf *chanctx_conf;
3616         enum nl80211_band band;
3617         int ret;
3618
3619         /* the lock is needed to assign the cookie later */
3620         mutex_lock(&local->mtx);
3621
3622         rcu_read_lock();
3623         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3624         if (WARN_ON(!chanctx_conf)) {
3625                 ret = -EINVAL;
3626                 goto unlock;
3627         }
3628         band = chanctx_conf->def.chan->band;
3629         sta = sta_info_get_bss(sdata, peer);
3630         if (sta) {
3631                 qos = sta->sta.wme;
3632         } else {
3633                 ret = -ENOLINK;
3634                 goto unlock;
3635         }
3636
3637         if (qos) {
3638                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3639                                  IEEE80211_STYPE_QOS_NULLFUNC |
3640                                  IEEE80211_FCTL_FROMDS);
3641         } else {
3642                 size -= 2;
3643                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3644                                  IEEE80211_STYPE_NULLFUNC |
3645                                  IEEE80211_FCTL_FROMDS);
3646         }
3647
3648         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3649         if (!skb) {
3650                 ret = -ENOMEM;
3651                 goto unlock;
3652         }
3653
3654         skb->dev = dev;
3655
3656         skb_reserve(skb, local->hw.extra_tx_headroom);
3657
3658         nullfunc = skb_put(skb, size);
3659         nullfunc->frame_control = fc;
3660         nullfunc->duration_id = 0;
3661         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3662         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3663         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3664         nullfunc->seq_ctrl = 0;
3665
3666         info = IEEE80211_SKB_CB(skb);
3667
3668         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3669                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3670         info->band = band;
3671
3672         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3673         skb->priority = 7;
3674         if (qos)
3675                 nullfunc->qos_ctrl = cpu_to_le16(7);
3676
3677         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3678         if (ret) {
3679                 kfree_skb(skb);
3680                 goto unlock;
3681         }
3682
3683         local_bh_disable();
3684         ieee80211_xmit(sdata, sta, skb);
3685         local_bh_enable();
3686
3687         ret = 0;
3688 unlock:
3689         rcu_read_unlock();
3690         mutex_unlock(&local->mtx);
3691
3692         return ret;
3693 }
3694
3695 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3696                                      struct wireless_dev *wdev,
3697                                      struct cfg80211_chan_def *chandef)
3698 {
3699         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3700         struct ieee80211_local *local = wiphy_priv(wiphy);
3701         struct ieee80211_chanctx_conf *chanctx_conf;
3702         int ret = -ENODATA;
3703
3704         rcu_read_lock();
3705         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3706         if (chanctx_conf) {
3707                 *chandef = sdata->vif.bss_conf.chandef;
3708                 ret = 0;
3709         } else if (local->open_count > 0 &&
3710                    local->open_count == local->monitors &&
3711                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3712                 if (local->use_chanctx)
3713                         *chandef = local->monitor_chandef;
3714                 else
3715                         *chandef = local->_oper_chandef;
3716                 ret = 0;
3717         }
3718         rcu_read_unlock();
3719
3720         return ret;
3721 }
3722
3723 #ifdef CONFIG_PM
3724 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3725 {
3726         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3727 }
3728 #endif
3729
3730 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3731                                  struct net_device *dev,
3732                                  struct cfg80211_qos_map *qos_map)
3733 {
3734         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3735         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3736
3737         if (qos_map) {
3738                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3739                 if (!new_qos_map)
3740                         return -ENOMEM;
3741                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3742         } else {
3743                 /* A NULL qos_map was passed to disable QoS mapping */
3744                 new_qos_map = NULL;
3745         }
3746
3747         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3748         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3749         if (old_qos_map)
3750                 kfree_rcu(old_qos_map, rcu_head);
3751
3752         return 0;
3753 }
3754
3755 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3756                                       struct net_device *dev,
3757                                       struct cfg80211_chan_def *chandef)
3758 {
3759         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3760         int ret;
3761         u32 changed = 0;
3762
3763         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3764         if (ret == 0)
3765                 ieee80211_bss_info_change_notify(sdata, changed);
3766
3767         return ret;
3768 }
3769
3770 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3771                                u8 tsid, const u8 *peer, u8 up,
3772                                u16 admitted_time)
3773 {
3774         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3775         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3776         int ac = ieee802_1d_to_ac[up];
3777
3778         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3779                 return -EOPNOTSUPP;
3780
3781         if (!(sdata->wmm_acm & BIT(up)))
3782                 return -EINVAL;
3783
3784         if (ifmgd->tx_tspec[ac].admitted_time)
3785                 return -EBUSY;
3786
3787         if (admitted_time) {
3788                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3789                 ifmgd->tx_tspec[ac].tsid = tsid;
3790                 ifmgd->tx_tspec[ac].up = up;
3791         }
3792
3793         return 0;
3794 }
3795
3796 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3797                                u8 tsid, const u8 *peer)
3798 {
3799         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3800         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3801         struct ieee80211_local *local = wiphy_priv(wiphy);
3802         int ac;
3803
3804         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3805                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3806
3807                 /* skip unused entries */
3808                 if (!tx_tspec->admitted_time)
3809                         continue;
3810
3811                 if (tx_tspec->tsid != tsid)
3812                         continue;
3813
3814                 /* due to this new packets will be reassigned to non-ACM ACs */
3815                 tx_tspec->up = -1;
3816
3817                 /* Make sure that all packets have been sent to avoid to
3818                  * restore the QoS params on packets that are still on the
3819                  * queues.
3820                  */
3821                 synchronize_net();
3822                 ieee80211_flush_queues(local, sdata, false);
3823
3824                 /* restore the normal QoS parameters
3825                  * (unconditionally to avoid races)
3826                  */
3827                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3828                 tx_tspec->downgraded = false;
3829                 ieee80211_sta_handle_tspec_ac_params(sdata);
3830
3831                 /* finally clear all the data */
3832                 memset(tx_tspec, 0, sizeof(*tx_tspec));
3833
3834                 return 0;
3835         }
3836
3837         return -ENOENT;
3838 }
3839
3840 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3841                                    u8 inst_id,
3842                                    enum nl80211_nan_func_term_reason reason,
3843                                    gfp_t gfp)
3844 {
3845         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3846         struct cfg80211_nan_func *func;
3847         u64 cookie;
3848
3849         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3850                 return;
3851
3852         spin_lock_bh(&sdata->u.nan.func_lock);
3853
3854         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3855         if (WARN_ON(!func)) {
3856                 spin_unlock_bh(&sdata->u.nan.func_lock);
3857                 return;
3858         }
3859
3860         cookie = func->cookie;
3861         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3862
3863         spin_unlock_bh(&sdata->u.nan.func_lock);
3864
3865         cfg80211_free_nan_func(func);
3866
3867         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3868                                      reason, cookie, gfp);
3869 }
3870 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3871
3872 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3873                               struct cfg80211_nan_match_params *match,
3874                               gfp_t gfp)
3875 {
3876         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3877         struct cfg80211_nan_func *func;
3878
3879         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3880                 return;
3881
3882         spin_lock_bh(&sdata->u.nan.func_lock);
3883
3884         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3885         if (WARN_ON(!func)) {
3886                 spin_unlock_bh(&sdata->u.nan.func_lock);
3887                 return;
3888         }
3889         match->cookie = func->cookie;
3890
3891         spin_unlock_bh(&sdata->u.nan.func_lock);
3892
3893         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3894 }
3895 EXPORT_SYMBOL(ieee80211_nan_func_match);
3896
3897 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3898                                               struct net_device *dev,
3899                                               const bool enabled)
3900 {
3901         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3902
3903         sdata->u.ap.multicast_to_unicast = enabled;
3904
3905         return 0;
3906 }
3907
3908 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3909                               struct txq_info *txqi)
3910 {
3911         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3912                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3913                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3914         }
3915
3916         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3917                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3918                 txqstats->backlog_packets = txqi->tin.backlog_packets;
3919         }
3920
3921         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3922                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3923                 txqstats->flows = txqi->tin.flows;
3924         }
3925
3926         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3927                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3928                 txqstats->drops = txqi->cstats.drop_count;
3929         }
3930
3931         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3932                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3933                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3934         }
3935
3936         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3937                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3938                 txqstats->overlimit = txqi->tin.overlimit;
3939         }
3940
3941         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3942                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3943                 txqstats->collisions = txqi->tin.collisions;
3944         }
3945
3946         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3947                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3948                 txqstats->tx_bytes = txqi->tin.tx_bytes;
3949         }
3950
3951         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3952                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3953                 txqstats->tx_packets = txqi->tin.tx_packets;
3954         }
3955 }
3956
3957 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3958                                    struct wireless_dev *wdev,
3959                                    struct cfg80211_txq_stats *txqstats)
3960 {
3961         struct ieee80211_local *local = wiphy_priv(wiphy);
3962         struct ieee80211_sub_if_data *sdata;
3963         int ret = 0;
3964
3965         if (!local->ops->wake_tx_queue)
3966                 return 1;
3967
3968         spin_lock_bh(&local->fq.lock);
3969         rcu_read_lock();
3970
3971         if (wdev) {
3972                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3973                 if (!sdata->vif.txq) {
3974                         ret = 1;
3975                         goto out;
3976                 }
3977                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3978         } else {
3979                 /* phy stats */
3980                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3981                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3982                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3983                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3984                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
3985                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3986                 txqstats->backlog_packets = local->fq.backlog;
3987                 txqstats->backlog_bytes = local->fq.memory_usage;
3988                 txqstats->overlimit = local->fq.overlimit;
3989                 txqstats->overmemory = local->fq.overmemory;
3990                 txqstats->collisions = local->fq.collisions;
3991                 txqstats->max_flows = local->fq.flows_cnt;
3992         }
3993
3994 out:
3995         rcu_read_unlock();
3996         spin_unlock_bh(&local->fq.lock);
3997
3998         return ret;
3999 }
4000
4001 static int
4002 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4003                                   struct net_device *dev,
4004                                   struct cfg80211_ftm_responder_stats *ftm_stats)
4005 {
4006         struct ieee80211_local *local = wiphy_priv(wiphy);
4007         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4008
4009         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4010 }
4011
4012 static int
4013 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4014                      struct cfg80211_pmsr_request *request)
4015 {
4016         struct ieee80211_local *local = wiphy_priv(wiphy);
4017         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4018
4019         return drv_start_pmsr(local, sdata, request);
4020 }
4021
4022 static void
4023 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4024                      struct cfg80211_pmsr_request *request)
4025 {
4026         struct ieee80211_local *local = wiphy_priv(wiphy);
4027         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4028
4029         return drv_abort_pmsr(local, sdata, request);
4030 }
4031
4032 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4033                                     struct net_device *dev,
4034                                     struct cfg80211_tid_config *tid_conf)
4035 {
4036         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4037         struct sta_info *sta;
4038         int ret;
4039
4040         if (!sdata->local->ops->set_tid_config)
4041                 return -EOPNOTSUPP;
4042
4043         if (!tid_conf->peer)
4044                 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4045
4046         mutex_lock(&sdata->local->sta_mtx);
4047         sta = sta_info_get_bss(sdata, tid_conf->peer);
4048         if (!sta) {
4049                 mutex_unlock(&sdata->local->sta_mtx);
4050                 return -ENOENT;
4051         }
4052
4053         ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4054         mutex_unlock(&sdata->local->sta_mtx);
4055
4056         return ret;
4057 }
4058
4059 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4060                                       struct net_device *dev,
4061                                       const u8 *peer, u8 tids)
4062 {
4063         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4064         struct sta_info *sta;
4065         int ret;
4066
4067         if (!sdata->local->ops->reset_tid_config)
4068                 return -EOPNOTSUPP;
4069
4070         if (!peer)
4071                 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4072
4073         mutex_lock(&sdata->local->sta_mtx);
4074         sta = sta_info_get_bss(sdata, peer);
4075         if (!sta) {
4076                 mutex_unlock(&sdata->local->sta_mtx);
4077                 return -ENOENT;
4078         }
4079
4080         ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4081         mutex_unlock(&sdata->local->sta_mtx);
4082
4083         return ret;
4084 }
4085
4086 const struct cfg80211_ops mac80211_config_ops = {
4087         .add_virtual_intf = ieee80211_add_iface,
4088         .del_virtual_intf = ieee80211_del_iface,
4089         .change_virtual_intf = ieee80211_change_iface,
4090         .start_p2p_device = ieee80211_start_p2p_device,
4091         .stop_p2p_device = ieee80211_stop_p2p_device,
4092         .add_key = ieee80211_add_key,
4093         .del_key = ieee80211_del_key,
4094         .get_key = ieee80211_get_key,
4095         .set_default_key = ieee80211_config_default_key,
4096         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4097         .set_default_beacon_key = ieee80211_config_default_beacon_key,
4098         .start_ap = ieee80211_start_ap,
4099         .change_beacon = ieee80211_change_beacon,
4100         .stop_ap = ieee80211_stop_ap,
4101         .add_station = ieee80211_add_station,
4102         .del_station = ieee80211_del_station,
4103         .change_station = ieee80211_change_station,
4104         .get_station = ieee80211_get_station,
4105         .dump_station = ieee80211_dump_station,
4106         .dump_survey = ieee80211_dump_survey,
4107 #ifdef CONFIG_MAC80211_MESH
4108         .add_mpath = ieee80211_add_mpath,
4109         .del_mpath = ieee80211_del_mpath,
4110         .change_mpath = ieee80211_change_mpath,
4111         .get_mpath = ieee80211_get_mpath,
4112         .dump_mpath = ieee80211_dump_mpath,
4113         .get_mpp = ieee80211_get_mpp,
4114         .dump_mpp = ieee80211_dump_mpp,
4115         .update_mesh_config = ieee80211_update_mesh_config,
4116         .get_mesh_config = ieee80211_get_mesh_config,
4117         .join_mesh = ieee80211_join_mesh,
4118         .leave_mesh = ieee80211_leave_mesh,
4119 #endif
4120         .join_ocb = ieee80211_join_ocb,
4121         .leave_ocb = ieee80211_leave_ocb,
4122         .change_bss = ieee80211_change_bss,
4123         .set_txq_params = ieee80211_set_txq_params,
4124         .set_monitor_channel = ieee80211_set_monitor_channel,
4125         .suspend = ieee80211_suspend,
4126         .resume = ieee80211_resume,
4127         .scan = ieee80211_scan,
4128         .abort_scan = ieee80211_abort_scan,
4129         .sched_scan_start = ieee80211_sched_scan_start,
4130         .sched_scan_stop = ieee80211_sched_scan_stop,
4131         .auth = ieee80211_auth,
4132         .assoc = ieee80211_assoc,
4133         .deauth = ieee80211_deauth,
4134         .disassoc = ieee80211_disassoc,
4135         .join_ibss = ieee80211_join_ibss,
4136         .leave_ibss = ieee80211_leave_ibss,
4137         .set_mcast_rate = ieee80211_set_mcast_rate,
4138         .set_wiphy_params = ieee80211_set_wiphy_params,
4139         .set_tx_power = ieee80211_set_tx_power,
4140         .get_tx_power = ieee80211_get_tx_power,
4141         .set_wds_peer = ieee80211_set_wds_peer,
4142         .rfkill_poll = ieee80211_rfkill_poll,
4143         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4144         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4145         .set_power_mgmt = ieee80211_set_power_mgmt,
4146         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4147         .remain_on_channel = ieee80211_remain_on_channel,
4148         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4149         .mgmt_tx = ieee80211_mgmt_tx,
4150         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4151         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4152         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4153         .update_mgmt_frame_registrations =
4154                 ieee80211_update_mgmt_frame_registrations,
4155         .set_antenna = ieee80211_set_antenna,
4156         .get_antenna = ieee80211_get_antenna,
4157         .set_rekey_data = ieee80211_set_rekey_data,
4158         .tdls_oper = ieee80211_tdls_oper,
4159         .tdls_mgmt = ieee80211_tdls_mgmt,
4160         .tdls_channel_switch = ieee80211_tdls_channel_switch,
4161         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4162         .probe_client = ieee80211_probe_client,
4163         .set_noack_map = ieee80211_set_noack_map,
4164 #ifdef CONFIG_PM
4165         .set_wakeup = ieee80211_set_wakeup,
4166 #endif
4167         .get_channel = ieee80211_cfg_get_channel,
4168         .start_radar_detection = ieee80211_start_radar_detection,
4169         .end_cac = ieee80211_end_cac,
4170         .channel_switch = ieee80211_channel_switch,
4171         .set_qos_map = ieee80211_set_qos_map,
4172         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4173         .add_tx_ts = ieee80211_add_tx_ts,
4174         .del_tx_ts = ieee80211_del_tx_ts,
4175         .start_nan = ieee80211_start_nan,
4176         .stop_nan = ieee80211_stop_nan,
4177         .nan_change_conf = ieee80211_nan_change_conf,
4178         .add_nan_func = ieee80211_add_nan_func,
4179         .del_nan_func = ieee80211_del_nan_func,
4180         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4181         .tx_control_port = ieee80211_tx_control_port,
4182         .get_txq_stats = ieee80211_get_txq_stats,
4183         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4184         .start_pmsr = ieee80211_start_pmsr,
4185         .abort_pmsr = ieee80211_abort_pmsr,
4186         .probe_mesh_link = ieee80211_probe_mesh_link,
4187         .set_tid_config = ieee80211_set_tid_config,
4188         .reset_tid_config = ieee80211_reset_tid_config,
4189 };