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                 /* fall through */
 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                 /* fall through */
 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                 if (sband) {
 713                         brate = sband->bitrates[rate->idx].bitrate;
 714                         rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 715                 }
 716         }
 717         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 718                 rinfo->bw = RATE_INFO_BW_40;
 719         else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 720                 rinfo->bw = RATE_INFO_BW_80;
 721         else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 722                 rinfo->bw = RATE_INFO_BW_160;
 723         else
 724                 rinfo->bw = RATE_INFO_BW_20;
 725         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 726                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 727 }
 728
 729 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 730                                   int idx, u8 *mac, struct station_info *sinfo)
 731 {
 732         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 733         struct ieee80211_local *local = sdata->local;
 734         struct sta_info *sta;
 735         int ret = -ENOENT;
 736
 737         mutex_lock(&local->sta_mtx);
 738
 739         sta = sta_info_get_by_idx(sdata, idx);
 740         if (sta) {
 741                 ret = 0;
 742                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 743                 sta_set_sinfo(sta, sinfo, true);
 744         }
 745
 746         mutex_unlock(&local->sta_mtx);
 747
 748         return ret;
 749 }
 750
 751 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 752                                  int idx, struct survey_info *survey)
 753 {
 754         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 755
 756         return drv_get_survey(local, idx, survey);
 757 }
 758
 759 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 760                                  const u8 *mac, struct station_info *sinfo)
 761 {
 762         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 763         struct ieee80211_local *local = sdata->local;
 764         struct sta_info *sta;
 765         int ret = -ENOENT;
 766
 767         mutex_lock(&local->sta_mtx);
 768
 769         sta = sta_info_get_bss(sdata, mac);
 770         if (sta) {
 771                 ret = 0;
 772                 sta_set_sinfo(sta, sinfo, true);
 773         }
 774
 775         mutex_unlock(&local->sta_mtx);
 776
 777         return ret;
 778 }
 779
 780 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 781                                          struct cfg80211_chan_def *chandef)
 782 {
 783         struct ieee80211_local *local = wiphy_priv(wiphy);
 784         struct ieee80211_sub_if_data *sdata;
 785         int ret = 0;
 786
 787         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 788                 return 0;
 789
 790         mutex_lock(&local->mtx);
 791         if (local->use_chanctx) {
 792                 sdata = rtnl_dereference(local->monitor_sdata);
 793                 if (sdata) {
 794                         ieee80211_vif_release_channel(sdata);
 795                         ret = ieee80211_vif_use_channel(sdata, chandef,
 796                                         IEEE80211_CHANCTX_EXCLUSIVE);
 797                 }
 798         } else if (local->open_count == local->monitors) {
 799                 local->_oper_chandef = *chandef;
 800                 ieee80211_hw_config(local, 0);
 801         }
 802
 803         if (ret == 0)
 804                 local->monitor_chandef = *chandef;
 805         mutex_unlock(&local->mtx);
 806
 807         return ret;
 808 }
 809
 810 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 811                                     const u8 *resp, size_t resp_len,
 812                                     const struct ieee80211_csa_settings *csa)
 813 {
 814         struct probe_resp *new, *old;
 815
 816         if (!resp || !resp_len)
 817                 return 1;
 818
 819         old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 820
 821         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 822         if (!new)
 823                 return -ENOMEM;
 824
 825         new->len = resp_len;
 826         memcpy(new->data, resp, resp_len);
 827
 828         if (csa)
 829                 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
 830                        csa->n_counter_offsets_presp *
 831                        sizeof(new->csa_counter_offsets[0]));
 832
 833         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 834         if (old)
 835                 kfree_rcu(old, rcu_head);
 836
 837         return 0;
 838 }
 839
 840 static int ieee80211_set_ftm_responder_params(
 841                                 struct ieee80211_sub_if_data *sdata,
 842                                 const u8 *lci, size_t lci_len,
 843                                 const u8 *civicloc, size_t civicloc_len)
 844 {
 845         struct ieee80211_ftm_responder_params *new, *old;
 846         struct ieee80211_bss_conf *bss_conf;
 847         u8 *pos;
 848         int len;
 849
 850         if (!lci_len && !civicloc_len)
 851                 return 0;
 852
 853         bss_conf = &sdata->vif.bss_conf;
 854         old = bss_conf->ftmr_params;
 855         len = lci_len + civicloc_len;
 856
 857         new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
 858         if (!new)
 859                 return -ENOMEM;
 860
 861         pos = (u8 *)(new + 1);
 862         if (lci_len) {
 863                 new->lci_len = lci_len;
 864                 new->lci = pos;
 865                 memcpy(pos, lci, lci_len);
 866                 pos += lci_len;
 867         }
 868
 869         if (civicloc_len) {
 870                 new->civicloc_len = civicloc_len;
 871                 new->civicloc = pos;
 872                 memcpy(pos, civicloc, civicloc_len);
 873                 pos += civicloc_len;
 874         }
 875
 876         bss_conf->ftmr_params = new;
 877         kfree(old);
 878
 879         return 0;
 880 }
 881
 882 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 883                                    struct cfg80211_beacon_data *params,
 884                                    const struct ieee80211_csa_settings *csa)
 885 {
 886         struct beacon_data *new, *old;
 887         int new_head_len, new_tail_len;
 888         int size, err;
 889         u32 changed = BSS_CHANGED_BEACON;
 890
 891         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 892
 893
 894         /* Need to have a beacon head if we don't have one yet */
 895         if (!params->head && !old)
 896                 return -EINVAL;
 897
 898         /* new or old head? */
 899         if (params->head)
 900                 new_head_len = params->head_len;
 901         else
 902                 new_head_len = old->head_len;
 903
 904         /* new or old tail? */
 905         if (params->tail || !old)
 906                 /* params->tail_len will be zero for !params->tail */
 907                 new_tail_len = params->tail_len;
 908         else
 909                 new_tail_len = old->tail_len;
 910
 911         size = sizeof(*new) + new_head_len + new_tail_len;
 912
 913         new = kzalloc(size, GFP_KERNEL);
 914         if (!new)
 915                 return -ENOMEM;
 916
 917         /* start filling the new info now */
 918
 919         /*
 920          * pointers go into the block we allocated,
 921          * memory is | beacon_data | head | tail |
 922          */
 923         new->head = ((u8 *) new) + sizeof(*new);
 924         new->tail = new->head + new_head_len;
 925         new->head_len = new_head_len;
 926         new->tail_len = new_tail_len;
 927
 928         if (csa) {
 929                 new->csa_current_counter = csa->count;
 930                 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
 931                        csa->n_counter_offsets_beacon *
 932                        sizeof(new->csa_counter_offsets[0]));
 933         }
 934
 935         /* copy in head */
 936         if (params->head)
 937                 memcpy(new->head, params->head, new_head_len);
 938         else
 939                 memcpy(new->head, old->head, new_head_len);
 940
 941         /* copy in optional tail */
 942         if (params->tail)
 943                 memcpy(new->tail, params->tail, new_tail_len);
 944         else
 945                 if (old)
 946                         memcpy(new->tail, old->tail, new_tail_len);
 947
 948         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
 949                                        params->probe_resp_len, csa);
 950         if (err < 0) {
 951                 kfree(new);
 952                 return err;
 953         }
 954         if (err == 0)
 955                 changed |= BSS_CHANGED_AP_PROBE_RESP;
 956
 957         if (params->ftm_responder != -1) {
 958                 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
 959                 err = ieee80211_set_ftm_responder_params(sdata,
 960                                                          params->lci,
 961                                                          params->lci_len,
 962                                                          params->civicloc,
 963                                                          params->civicloc_len);
 964
 965                 if (err < 0) {
 966                         kfree(new);
 967                         return err;
 968                 }
 969
 970                 changed |= BSS_CHANGED_FTM_RESPONDER;
 971         }
 972
 973         rcu_assign_pointer(sdata->u.ap.beacon, new);
 974
 975         if (old)
 976                 kfree_rcu(old, rcu_head);
 977
 978         return changed;
 979 }
 980
 981 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 982                               struct cfg80211_ap_settings *params)
 983 {
 984         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 985         struct ieee80211_local *local = sdata->local;
 986         struct beacon_data *old;
 987         struct ieee80211_sub_if_data *vlan;
 988         u32 changed = BSS_CHANGED_BEACON_INT |
 989                       BSS_CHANGED_BEACON_ENABLED |
 990                       BSS_CHANGED_BEACON |
 991                       BSS_CHANGED_SSID |
 992                       BSS_CHANGED_P2P_PS |
 993                       BSS_CHANGED_TXPOWER |
 994                       BSS_CHANGED_TWT |
 995                       BSS_CHANGED_HE_OBSS_PD |
 996                       BSS_CHANGED_HE_BSS_COLOR;
 997         int err;
 998         int prev_beacon_int;
 999
1000         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1001         if (old)
1002                 return -EALREADY;
1003
1004         if (params->smps_mode != NL80211_SMPS_OFF)
1005                 return -ENOTSUPP;
1006
1007         sdata->smps_mode = IEEE80211_SMPS_OFF;
1008
1009         sdata->needed_rx_chains = sdata->local->rx_chains;
1010
1011         prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1012         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1013
1014         if (params->he_cap && params->he_oper) {
1015                 sdata->vif.bss_conf.he_support = true;
1016                 sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1017                         le32_get_bits(params->he_oper->he_oper_params,
1018                               IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1019                 sdata->vif.bss_conf.frame_time_rts_th =
1020                         le32_get_bits(params->he_oper->he_oper_params,
1021                               IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1022         }
1023
1024         mutex_lock(&local->mtx);
1025         err = ieee80211_vif_use_channel(sdata, &params->chandef,
1026                                         IEEE80211_CHANCTX_SHARED);
1027         if (!err)
1028                 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1029         mutex_unlock(&local->mtx);
1030         if (err) {
1031                 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1032                 return err;
1033         }
1034
1035         /*
1036          * Apply control port protocol, this allows us to
1037          * not encrypt dynamic WEP control frames.
1038          */
1039         sdata->control_port_protocol = params->crypto.control_port_ethertype;
1040         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1041         sdata->control_port_over_nl80211 =
1042                                 params->crypto.control_port_over_nl80211;
1043         sdata->control_port_no_preauth =
1044                                 params->crypto.control_port_no_preauth;
1045         sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1046                                                         &params->crypto,
1047                                                         sdata->vif.type);
1048
1049         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1050                 vlan->control_port_protocol =
1051                         params->crypto.control_port_ethertype;
1052                 vlan->control_port_no_encrypt =
1053                         params->crypto.control_port_no_encrypt;
1054                 vlan->control_port_over_nl80211 =
1055                         params->crypto.control_port_over_nl80211;
1056                 vlan->control_port_no_preauth =
1057                         params->crypto.control_port_no_preauth;
1058                 vlan->encrypt_headroom =
1059                         ieee80211_cs_headroom(sdata->local,
1060                                               &params->crypto,
1061                                               vlan->vif.type);
1062         }
1063
1064         sdata->vif.bss_conf.dtim_period = params->dtim_period;
1065         sdata->vif.bss_conf.enable_beacon = true;
1066         sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1067         sdata->vif.bss_conf.twt_responder = params->twt_responder;
1068         memcpy(&sdata->vif.bss_conf.he_obss_pd, &params->he_obss_pd,
1069                sizeof(struct ieee80211_he_obss_pd));
1070         memcpy(&sdata->vif.bss_conf.he_bss_color, &params->he_bss_color,
1071                sizeof(struct ieee80211_he_bss_color));
1072
1073         sdata->vif.bss_conf.ssid_len = params->ssid_len;
1074         if (params->ssid_len)
1075                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1076                        params->ssid_len);
1077         sdata->vif.bss_conf.hidden_ssid =
1078                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1079
1080         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1081                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1082         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1083                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1084         if (params->p2p_opp_ps)
1085                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1086                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1087
1088         err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
1089         if (err < 0) {
1090                 ieee80211_vif_release_channel(sdata);
1091                 return err;
1092         }
1093         changed |= err;
1094
1095         err = drv_start_ap(sdata->local, sdata);
1096         if (err) {
1097                 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1098
1099                 if (old)
1100                         kfree_rcu(old, rcu_head);
1101                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1102                 ieee80211_vif_release_channel(sdata);
1103                 return err;
1104         }
1105
1106         ieee80211_recalc_dtim(local, sdata);
1107         ieee80211_bss_info_change_notify(sdata, changed);
1108
1109         netif_carrier_on(dev);
1110         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1111                 netif_carrier_on(vlan->dev);
1112
1113         return 0;
1114 }
1115
1116 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1117                                    struct cfg80211_beacon_data *params)
1118 {
1119         struct ieee80211_sub_if_data *sdata;
1120         struct beacon_data *old;
1121         int err;
1122
1123         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1124         sdata_assert_lock(sdata);
1125
1126         /* don't allow changing the beacon while CSA is in place - offset
1127          * of channel switch counter may change
1128          */
1129         if (sdata->vif.csa_active)
1130                 return -EBUSY;
1131
1132         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1133         if (!old)
1134                 return -ENOENT;
1135
1136         err = ieee80211_assign_beacon(sdata, params, NULL);
1137         if (err < 0)
1138                 return err;
1139         ieee80211_bss_info_change_notify(sdata, err);
1140         return 0;
1141 }
1142
1143 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1144 {
1145         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1146         struct ieee80211_sub_if_data *vlan;
1147         struct ieee80211_local *local = sdata->local;
1148         struct beacon_data *old_beacon;
1149         struct probe_resp *old_probe_resp;
1150         struct cfg80211_chan_def chandef;
1151
1152         sdata_assert_lock(sdata);
1153
1154         old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1155         if (!old_beacon)
1156                 return -ENOENT;
1157         old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1158
1159         /* abort any running channel switch */
1160         mutex_lock(&local->mtx);
1161         sdata->vif.csa_active = false;
1162         if (sdata->csa_block_tx) {
1163                 ieee80211_wake_vif_queues(local, sdata,
1164                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1165                 sdata->csa_block_tx = false;
1166         }
1167
1168         mutex_unlock(&local->mtx);
1169
1170         kfree(sdata->u.ap.next_beacon);
1171         sdata->u.ap.next_beacon = NULL;
1172
1173         /* turn off carrier for this interface and dependent VLANs */
1174         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1175                 netif_carrier_off(vlan->dev);
1176         netif_carrier_off(dev);
1177
1178         /* remove beacon and probe response */
1179         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1180         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1181         kfree_rcu(old_beacon, rcu_head);
1182         if (old_probe_resp)
1183                 kfree_rcu(old_probe_resp, rcu_head);
1184
1185         kfree(sdata->vif.bss_conf.ftmr_params);
1186         sdata->vif.bss_conf.ftmr_params = NULL;
1187
1188         __sta_info_flush(sdata, true);
1189         ieee80211_free_keys(sdata, true);
1190
1191         sdata->vif.bss_conf.enable_beacon = false;
1192         sdata->vif.bss_conf.ssid_len = 0;
1193         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1194         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1195
1196         if (sdata->wdev.cac_started) {
1197                 chandef = sdata->vif.bss_conf.chandef;
1198                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1199                 cfg80211_cac_event(sdata->dev, &chandef,
1200                                    NL80211_RADAR_CAC_ABORTED,
1201                                    GFP_KERNEL);
1202         }
1203
1204         drv_stop_ap(sdata->local, sdata);
1205
1206         /* free all potentially still buffered bcast frames */
1207         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1208         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1209
1210         mutex_lock(&local->mtx);
1211         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1212         ieee80211_vif_release_channel(sdata);
1213         mutex_unlock(&local->mtx);
1214
1215         return 0;
1216 }
1217
1218 static int sta_apply_auth_flags(struct ieee80211_local *local,
1219                                 struct sta_info *sta,
1220                                 u32 mask, u32 set)
1221 {
1222         int ret;
1223
1224         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1225             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1226             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1227                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1228                 if (ret)
1229                         return ret;
1230         }
1231
1232         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1233             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1234             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1235                 /*
1236                  * When peer becomes associated, init rate control as
1237                  * well. Some drivers require rate control initialized
1238                  * before drv_sta_state() is called.
1239                  */
1240                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1241                         rate_control_rate_init(sta);
1242
1243                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1244                 if (ret)
1245                         return ret;
1246         }
1247
1248         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1249                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1250                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1251                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1252                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1253                 else
1254                         ret = 0;
1255                 if (ret)
1256                         return ret;
1257         }
1258
1259         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1260             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1261             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1262                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1263                 if (ret)
1264                         return ret;
1265         }
1266
1267         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1268             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1269             test_sta_flag(sta, WLAN_STA_AUTH)) {
1270                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1271                 if (ret)
1272                         return ret;
1273         }
1274
1275         return 0;
1276 }
1277
1278 static void sta_apply_mesh_params(struct ieee80211_local *local,
1279                                   struct sta_info *sta,
1280                                   struct station_parameters *params)
1281 {
1282 #ifdef CONFIG_MAC80211_MESH
1283         struct ieee80211_sub_if_data *sdata = sta->sdata;
1284         u32 changed = 0;
1285
1286         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1287                 switch (params->plink_state) {
1288                 case NL80211_PLINK_ESTAB:
1289                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1290                                 changed = mesh_plink_inc_estab_count(sdata);
1291                         sta->mesh->plink_state = params->plink_state;
1292                         sta->mesh->aid = params->peer_aid;
1293
1294                         ieee80211_mps_sta_status_update(sta);
1295                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1296                                       sdata->u.mesh.mshcfg.power_mode);
1297
1298                         ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1299                         /* init at low value */
1300                         ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1301
1302                         break;
1303                 case NL80211_PLINK_LISTEN:
1304                 case NL80211_PLINK_BLOCKED:
1305                 case NL80211_PLINK_OPN_SNT:
1306                 case NL80211_PLINK_OPN_RCVD:
1307                 case NL80211_PLINK_CNF_RCVD:
1308                 case NL80211_PLINK_HOLDING:
1309                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1310                                 changed = mesh_plink_dec_estab_count(sdata);
1311                         sta->mesh->plink_state = params->plink_state;
1312
1313                         ieee80211_mps_sta_status_update(sta);
1314                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1315                                         NL80211_MESH_POWER_UNKNOWN);
1316                         break;
1317                 default:
1318                         /*  nothing  */
1319                         break;
1320                 }
1321         }
1322
1323         switch (params->plink_action) {
1324         case NL80211_PLINK_ACTION_NO_ACTION:
1325                 /* nothing */
1326                 break;
1327         case NL80211_PLINK_ACTION_OPEN:
1328                 changed |= mesh_plink_open(sta);
1329                 break;
1330         case NL80211_PLINK_ACTION_BLOCK:
1331                 changed |= mesh_plink_block(sta);
1332                 break;
1333         }
1334
1335         if (params->local_pm)
1336                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1337                                                           params->local_pm);
1338
1339         ieee80211_mbss_info_change_notify(sdata, changed);
1340 #endif
1341 }
1342
1343 static int sta_apply_parameters(struct ieee80211_local *local,
1344                                 struct sta_info *sta,
1345                                 struct station_parameters *params)
1346 {
1347         int ret = 0;
1348         struct ieee80211_supported_band *sband;
1349         struct ieee80211_sub_if_data *sdata = sta->sdata;
1350         u32 mask, set;
1351
1352         sband = ieee80211_get_sband(sdata);
1353         if (!sband)
1354                 return -EINVAL;
1355
1356         mask = params->sta_flags_mask;
1357         set = params->sta_flags_set;
1358
1359         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1360                 /*
1361                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1362                  * API but must follow AUTHENTICATED for driver state.
1363                  */
1364                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1365                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1366                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1367                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1368         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1369                 /*
1370                  * TDLS -- everything follows authorized, but
1371                  * only becoming authorized is possible, not
1372                  * going back
1373                  */
1374                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1375                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1376                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1377                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1378                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1379                 }
1380         }
1381
1382         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1383             local->hw.queues >= IEEE80211_NUM_ACS)
1384                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1385
1386         /* auth flags will be set later for TDLS,
1387          * and for unassociated stations that move to assocaited */
1388         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1389             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1390               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1391                 ret = sta_apply_auth_flags(local, sta, mask, set);
1392                 if (ret)
1393                         return ret;
1394         }
1395
1396         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1397                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1398                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1399                 else
1400                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1401         }
1402
1403         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1404                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1405                 if (set & BIT(NL80211_STA_FLAG_MFP))
1406                         set_sta_flag(sta, WLAN_STA_MFP);
1407                 else
1408                         clear_sta_flag(sta, WLAN_STA_MFP);
1409         }
1410
1411         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1412                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1413                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1414                 else
1415                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1416         }
1417
1418         /* mark TDLS channel switch support, if the AP allows it */
1419         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1420             !sdata->u.mgd.tdls_chan_switch_prohibited &&
1421             params->ext_capab_len >= 4 &&
1422             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1423                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1424
1425         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1426             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1427             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1428             params->ext_capab_len >= 8 &&
1429             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1430                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1431
1432         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1433                 sta->sta.uapsd_queues = params->uapsd_queues;
1434                 sta->sta.max_sp = params->max_sp;
1435         }
1436
1437         /* The sender might not have sent the last bit, consider it to be 0 */
1438         if (params->ext_capab_len >= 8) {
1439                 u8 val = (params->ext_capab[7] &
1440                           WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1441
1442                 /* we did get all the bits, take the MSB as well */
1443                 if (params->ext_capab_len >= 9) {
1444                         u8 val_msb = params->ext_capab[8] &
1445                                 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1446                         val_msb <<= 1;
1447                         val |= val_msb;
1448                 }
1449
1450                 switch (val) {
1451                 case 1:
1452                         sta->sta.max_amsdu_subframes = 32;
1453                         break;
1454                 case 2:
1455                         sta->sta.max_amsdu_subframes = 16;
1456                         break;
1457                 case 3:
1458                         sta->sta.max_amsdu_subframes = 8;
1459                         break;
1460                 default:
1461                         sta->sta.max_amsdu_subframes = 0;
1462                 }
1463         }
1464
1465         /*
1466          * cfg80211 validates this (1-2007) and allows setting the AID
1467          * only when creating a new station entry
1468          */
1469         if (params->aid)
1470                 sta->sta.aid = params->aid;
1471
1472         /*
1473          * Some of the following updates would be racy if called on an
1474          * existing station, via ieee80211_change_station(). However,
1475          * all such changes are rejected by cfg80211 except for updates
1476          * changing the supported rates on an existing but not yet used
1477          * TDLS peer.
1478          */
1479
1480         if (params->listen_interval >= 0)
1481                 sta->listen_interval = params->listen_interval;
1482
1483         if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1484                 sta->sta.txpwr.type = params->txpwr.type;
1485                 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1486                         sta->sta.txpwr.power = params->txpwr.power;
1487                 ret = drv_sta_set_txpwr(local, sdata, sta);
1488                 if (ret)
1489                         return ret;
1490         }
1491
1492         if (params->supported_rates && params->supported_rates_len) {
1493                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1494                                          sband, params->supported_rates,
1495                                          params->supported_rates_len,
1496                                          &sta->sta.supp_rates[sband->band]);
1497         }
1498
1499         if (params->ht_capa)
1500                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1501                                                   params->ht_capa, sta);
1502
1503         /* VHT can override some HT caps such as the A-MSDU max length */
1504         if (params->vht_capa)
1505                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1506                                                     params->vht_capa, sta);
1507
1508         if (params->he_capa)
1509                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1510                                                   (void *)params->he_capa,
1511                                                   params->he_capa_len, sta);
1512
1513         if (params->opmode_notif_used) {
1514                 /* returned value is only needed for rc update, but the
1515                  * rc isn't initialized here yet, so ignore it
1516                  */
1517                 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1518                                               sband->band);
1519         }
1520
1521         if (params->support_p2p_ps >= 0)
1522                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1523
1524         if (ieee80211_vif_is_mesh(&sdata->vif))
1525                 sta_apply_mesh_params(local, sta, params);
1526
1527         if (params->airtime_weight)
1528                 sta->airtime_weight = params->airtime_weight;
1529
1530         /* set the STA state after all sta info from usermode has been set */
1531         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1532             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1533                 ret = sta_apply_auth_flags(local, sta, mask, set);
1534                 if (ret)
1535                         return ret;
1536         }
1537
1538         return 0;
1539 }
1540
1541 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1542                                  const u8 *mac,
1543                                  struct station_parameters *params)
1544 {
1545         struct ieee80211_local *local = wiphy_priv(wiphy);
1546         struct sta_info *sta;
1547         struct ieee80211_sub_if_data *sdata;
1548         int err;
1549
1550         if (params->vlan) {
1551                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1552
1553                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1554                     sdata->vif.type != NL80211_IFTYPE_AP)
1555                         return -EINVAL;
1556         } else
1557                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1558
1559         if (ether_addr_equal(mac, sdata->vif.addr))
1560                 return -EINVAL;
1561
1562         if (!is_valid_ether_addr(mac))
1563                 return -EINVAL;
1564
1565         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1566             sdata->vif.type == NL80211_IFTYPE_STATION &&
1567             !sdata->u.mgd.associated)
1568                 return -EINVAL;
1569
1570         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1571         if (!sta)
1572                 return -ENOMEM;
1573
1574         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1575                 sta->sta.tdls = true;
1576
1577         err = sta_apply_parameters(local, sta, params);
1578         if (err) {
1579                 sta_info_free(local, sta);
1580                 return err;
1581         }
1582
1583         /*
1584          * for TDLS and for unassociated station, rate control should be
1585          * initialized only when rates are known and station is marked
1586          * authorized/associated
1587          */
1588         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1589             test_sta_flag(sta, WLAN_STA_ASSOC))
1590                 rate_control_rate_init(sta);
1591
1592         err = sta_info_insert_rcu(sta);
1593         if (err) {
1594                 rcu_read_unlock();
1595                 return err;
1596         }
1597
1598         rcu_read_unlock();
1599
1600         return 0;
1601 }
1602
1603 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1604                                  struct station_del_parameters *params)
1605 {
1606         struct ieee80211_sub_if_data *sdata;
1607
1608         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1609
1610         if (params->mac)
1611                 return sta_info_destroy_addr_bss(sdata, params->mac);
1612
1613         sta_info_flush(sdata);
1614         return 0;
1615 }
1616
1617 static int ieee80211_change_station(struct wiphy *wiphy,
1618                                     struct net_device *dev, const u8 *mac,
1619                                     struct station_parameters *params)
1620 {
1621         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1622         struct ieee80211_local *local = wiphy_priv(wiphy);
1623         struct sta_info *sta;
1624         struct ieee80211_sub_if_data *vlansdata;
1625         enum cfg80211_station_type statype;
1626         int err;
1627
1628         mutex_lock(&local->sta_mtx);
1629
1630         sta = sta_info_get_bss(sdata, mac);
1631         if (!sta) {
1632                 err = -ENOENT;
1633                 goto out_err;
1634         }
1635
1636         switch (sdata->vif.type) {
1637         case NL80211_IFTYPE_MESH_POINT:
1638                 if (sdata->u.mesh.user_mpm)
1639                         statype = CFG80211_STA_MESH_PEER_USER;
1640                 else
1641                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1642                 break;
1643         case NL80211_IFTYPE_ADHOC:
1644                 statype = CFG80211_STA_IBSS;
1645                 break;
1646         case NL80211_IFTYPE_STATION:
1647                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1648                         statype = CFG80211_STA_AP_STA;
1649                         break;
1650                 }
1651                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1652                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1653                 else
1654                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1655                 break;
1656         case NL80211_IFTYPE_AP:
1657         case NL80211_IFTYPE_AP_VLAN:
1658                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1659                         statype = CFG80211_STA_AP_CLIENT;
1660                 else
1661                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1662                 break;
1663         default:
1664                 err = -EOPNOTSUPP;
1665                 goto out_err;
1666         }
1667
1668         err = cfg80211_check_station_change(wiphy, params, statype);
1669         if (err)
1670                 goto out_err;
1671
1672         if (params->vlan && params->vlan != sta->sdata->dev) {
1673                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1674
1675                 if (params->vlan->ieee80211_ptr->use_4addr) {
1676                         if (vlansdata->u.vlan.sta) {
1677                                 err = -EBUSY;
1678                                 goto out_err;
1679                         }
1680
1681                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1682                         __ieee80211_check_fast_rx_iface(vlansdata);
1683                 }
1684
1685                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1686                     sta->sdata->u.vlan.sta)
1687                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1688
1689                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1690                         ieee80211_vif_dec_num_mcast(sta->sdata);
1691
1692                 sta->sdata = vlansdata;
1693                 ieee80211_check_fast_xmit(sta);
1694
1695                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1696                         ieee80211_vif_inc_num_mcast(sta->sdata);
1697                         cfg80211_send_layer2_update(sta->sdata->dev,
1698                                                     sta->sta.addr);
1699                 }
1700         }
1701
1702         err = sta_apply_parameters(local, sta, params);
1703         if (err)
1704                 goto out_err;
1705
1706         mutex_unlock(&local->sta_mtx);
1707
1708         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1709             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1710                 ieee80211_recalc_ps(local);
1711                 ieee80211_recalc_ps_vif(sdata);
1712         }
1713
1714         return 0;
1715 out_err:
1716         mutex_unlock(&local->sta_mtx);
1717         return err;
1718 }
1719
1720 #ifdef CONFIG_MAC80211_MESH
1721 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1722                                const u8 *dst, const u8 *next_hop)
1723 {
1724         struct ieee80211_sub_if_data *sdata;
1725         struct mesh_path *mpath;
1726         struct sta_info *sta;
1727
1728         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1729
1730         rcu_read_lock();
1731         sta = sta_info_get(sdata, next_hop);
1732         if (!sta) {
1733                 rcu_read_unlock();
1734                 return -ENOENT;
1735         }
1736
1737         mpath = mesh_path_add(sdata, dst);
1738         if (IS_ERR(mpath)) {
1739                 rcu_read_unlock();
1740                 return PTR_ERR(mpath);
1741         }
1742
1743         mesh_path_fix_nexthop(mpath, sta);
1744
1745         rcu_read_unlock();
1746         return 0;
1747 }
1748
1749 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1750                                const u8 *dst)
1751 {
1752         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1753
1754         if (dst)
1755                 return mesh_path_del(sdata, dst);
1756
1757         mesh_path_flush_by_iface(sdata);
1758         return 0;
1759 }
1760
1761 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1762                                   const u8 *dst, const u8 *next_hop)
1763 {
1764         struct ieee80211_sub_if_data *sdata;
1765         struct mesh_path *mpath;
1766         struct sta_info *sta;
1767
1768         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1769
1770         rcu_read_lock();
1771
1772         sta = sta_info_get(sdata, next_hop);
1773         if (!sta) {
1774                 rcu_read_unlock();
1775                 return -ENOENT;
1776         }
1777
1778         mpath = mesh_path_lookup(sdata, dst);
1779         if (!mpath) {
1780                 rcu_read_unlock();
1781                 return -ENOENT;
1782         }
1783
1784         mesh_path_fix_nexthop(mpath, sta);
1785
1786         rcu_read_unlock();
1787         return 0;
1788 }
1789
1790 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1791                             struct mpath_info *pinfo)
1792 {
1793         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1794
1795         if (next_hop_sta)
1796                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1797         else
1798                 eth_zero_addr(next_hop);
1799
1800         memset(pinfo, 0, sizeof(*pinfo));
1801
1802         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1803
1804         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1805                         MPATH_INFO_SN |
1806                         MPATH_INFO_METRIC |
1807                         MPATH_INFO_EXPTIME |
1808                         MPATH_INFO_DISCOVERY_TIMEOUT |
1809                         MPATH_INFO_DISCOVERY_RETRIES |
1810                         MPATH_INFO_FLAGS |
1811                         MPATH_INFO_HOP_COUNT |
1812                         MPATH_INFO_PATH_CHANGE;
1813
1814         pinfo->frame_qlen = mpath->frame_queue.qlen;
1815         pinfo->sn = mpath->sn;
1816         pinfo->metric = mpath->metric;
1817         if (time_before(jiffies, mpath->exp_time))
1818                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1819         pinfo->discovery_timeout =
1820                         jiffies_to_msecs(mpath->discovery_timeout);
1821         pinfo->discovery_retries = mpath->discovery_retries;
1822         if (mpath->flags & MESH_PATH_ACTIVE)
1823                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1824         if (mpath->flags & MESH_PATH_RESOLVING)
1825                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1826         if (mpath->flags & MESH_PATH_SN_VALID)
1827                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1828         if (mpath->flags & MESH_PATH_FIXED)
1829                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1830         if (mpath->flags & MESH_PATH_RESOLVED)
1831                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1832         pinfo->hop_count = mpath->hop_count;
1833         pinfo->path_change_count = mpath->path_change_count;
1834 }
1835
1836 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1837                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1838
1839 {
1840         struct ieee80211_sub_if_data *sdata;
1841         struct mesh_path *mpath;
1842
1843         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1844
1845         rcu_read_lock();
1846         mpath = mesh_path_lookup(sdata, dst);
1847         if (!mpath) {
1848                 rcu_read_unlock();
1849                 return -ENOENT;
1850         }
1851         memcpy(dst, mpath->dst, ETH_ALEN);
1852         mpath_set_pinfo(mpath, next_hop, pinfo);
1853         rcu_read_unlock();
1854         return 0;
1855 }
1856
1857 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1858                                 int idx, u8 *dst, u8 *next_hop,
1859                                 struct mpath_info *pinfo)
1860 {
1861         struct ieee80211_sub_if_data *sdata;
1862         struct mesh_path *mpath;
1863
1864         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1865
1866         rcu_read_lock();
1867         mpath = mesh_path_lookup_by_idx(sdata, idx);
1868         if (!mpath) {
1869                 rcu_read_unlock();
1870                 return -ENOENT;
1871         }
1872         memcpy(dst, mpath->dst, ETH_ALEN);
1873         mpath_set_pinfo(mpath, next_hop, pinfo);
1874         rcu_read_unlock();
1875         return 0;
1876 }
1877
1878 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1879                           struct mpath_info *pinfo)
1880 {
1881         memset(pinfo, 0, sizeof(*pinfo));
1882         memcpy(mpp, mpath->mpp, ETH_ALEN);
1883
1884         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1885 }
1886
1887 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1888                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1889
1890 {
1891         struct ieee80211_sub_if_data *sdata;
1892         struct mesh_path *mpath;
1893
1894         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1895
1896         rcu_read_lock();
1897         mpath = mpp_path_lookup(sdata, dst);
1898         if (!mpath) {
1899                 rcu_read_unlock();
1900                 return -ENOENT;
1901         }
1902         memcpy(dst, mpath->dst, ETH_ALEN);
1903         mpp_set_pinfo(mpath, mpp, pinfo);
1904         rcu_read_unlock();
1905         return 0;
1906 }
1907
1908 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1909                               int idx, u8 *dst, u8 *mpp,
1910                               struct mpath_info *pinfo)
1911 {
1912         struct ieee80211_sub_if_data *sdata;
1913         struct mesh_path *mpath;
1914
1915         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1916
1917         rcu_read_lock();
1918         mpath = mpp_path_lookup_by_idx(sdata, idx);
1919         if (!mpath) {
1920                 rcu_read_unlock();
1921                 return -ENOENT;
1922         }
1923         memcpy(dst, mpath->dst, ETH_ALEN);
1924         mpp_set_pinfo(mpath, mpp, pinfo);
1925         rcu_read_unlock();
1926         return 0;
1927 }
1928
1929 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1930                                 struct net_device *dev,
1931                                 struct mesh_config *conf)
1932 {
1933         struct ieee80211_sub_if_data *sdata;
1934         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1935
1936         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1937         return 0;
1938 }
1939
1940 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1941 {
1942         return (mask >> (parm-1)) & 0x1;
1943 }
1944
1945 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1946                 const struct mesh_setup *setup)
1947 {
1948         u8 *new_ie;
1949         const u8 *old_ie;
1950         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1951                                         struct ieee80211_sub_if_data, u.mesh);
1952
1953         /* allocate information elements */
1954         new_ie = NULL;
1955         old_ie = ifmsh->ie;
1956
1957         if (setup->ie_len) {
1958                 new_ie = kmemdup(setup->ie, setup->ie_len,
1959                                 GFP_KERNEL);
1960                 if (!new_ie)
1961                         return -ENOMEM;
1962         }
1963         ifmsh->ie_len = setup->ie_len;
1964         ifmsh->ie = new_ie;
1965         kfree(old_ie);
1966
1967         /* now copy the rest of the setup parameters */
1968         ifmsh->mesh_id_len = setup->mesh_id_len;
1969         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1970         ifmsh->mesh_sp_id = setup->sync_method;
1971         ifmsh->mesh_pp_id = setup->path_sel_proto;
1972         ifmsh->mesh_pm_id = setup->path_metric;
1973         ifmsh->user_mpm = setup->user_mpm;
1974         ifmsh->mesh_auth_id = setup->auth_id;
1975         ifmsh->security = IEEE80211_MESH_SEC_NONE;
1976         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
1977         if (setup->is_authenticated)
1978                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1979         if (setup->is_secure)
1980                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1981
1982         /* mcast rate setting in Mesh Node */
1983         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1984                                                 sizeof(setup->mcast_rate));
1985         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1986
1987         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1988         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1989
1990         return 0;
1991 }
1992
1993 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1994                                         struct net_device *dev, u32 mask,
1995                                         const struct mesh_config *nconf)
1996 {
1997         struct mesh_config *conf;
1998         struct ieee80211_sub_if_data *sdata;
1999         struct ieee80211_if_mesh *ifmsh;
2000
2001         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2002         ifmsh = &sdata->u.mesh;
2003
2004         /* Set the config options which we are interested in setting */
2005         conf = &(sdata->u.mesh.mshcfg);
2006         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2007                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2008         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2009                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2010         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2011                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2012         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2013                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2014         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2015                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2016         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2017                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2018         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2019                 conf->element_ttl = nconf->element_ttl;
2020         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2021                 if (ifmsh->user_mpm)
2022                         return -EBUSY;
2023                 conf->auto_open_plinks = nconf->auto_open_plinks;
2024         }
2025         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2026                 conf->dot11MeshNbrOffsetMaxNeighbor =
2027                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2028         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2029                 conf->dot11MeshHWMPmaxPREQretries =
2030                         nconf->dot11MeshHWMPmaxPREQretries;
2031         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2032                 conf->path_refresh_time = nconf->path_refresh_time;
2033         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2034                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2035         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2036                 conf->dot11MeshHWMPactivePathTimeout =
2037                         nconf->dot11MeshHWMPactivePathTimeout;
2038         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2039                 conf->dot11MeshHWMPpreqMinInterval =
2040                         nconf->dot11MeshHWMPpreqMinInterval;
2041         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2042                 conf->dot11MeshHWMPperrMinInterval =
2043                         nconf->dot11MeshHWMPperrMinInterval;
2044         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2045                            mask))
2046                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2047                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2048         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2049                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2050                 ieee80211_mesh_root_setup(ifmsh);
2051         }
2052         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2053                 /* our current gate announcement implementation rides on root
2054                  * announcements, so require this ifmsh to also be a root node
2055                  * */
2056                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2057                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2058                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2059                         ieee80211_mesh_root_setup(ifmsh);
2060                 }
2061                 conf->dot11MeshGateAnnouncementProtocol =
2062                         nconf->dot11MeshGateAnnouncementProtocol;
2063         }
2064         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2065                 conf->dot11MeshHWMPRannInterval =
2066                         nconf->dot11MeshHWMPRannInterval;
2067         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2068                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2069         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2070                 /* our RSSI threshold implementation is supported only for
2071                  * devices that report signal in dBm.
2072                  */
2073                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2074                         return -ENOTSUPP;
2075                 conf->rssi_threshold = nconf->rssi_threshold;
2076         }
2077         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2078                 conf->ht_opmode = nconf->ht_opmode;
2079                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2080                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2081         }
2082         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2083                 conf->dot11MeshHWMPactivePathToRootTimeout =
2084                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2085         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2086                 conf->dot11MeshHWMProotInterval =
2087                         nconf->dot11MeshHWMProotInterval;
2088         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2089                 conf->dot11MeshHWMPconfirmationInterval =
2090                         nconf->dot11MeshHWMPconfirmationInterval;
2091         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2092                 conf->power_mode = nconf->power_mode;
2093                 ieee80211_mps_local_status_update(sdata);
2094         }
2095         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2096                 conf->dot11MeshAwakeWindowDuration =
2097                         nconf->dot11MeshAwakeWindowDuration;
2098         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2099                 conf->plink_timeout = nconf->plink_timeout;
2100         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2101                 conf->dot11MeshConnectedToMeshGate =
2102                         nconf->dot11MeshConnectedToMeshGate;
2103         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2104         return 0;
2105 }
2106
2107 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2108                                const struct mesh_config *conf,
2109                                const struct mesh_setup *setup)
2110 {
2111         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2112         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2113         int err;
2114
2115         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2116         err = copy_mesh_setup(ifmsh, setup);
2117         if (err)
2118                 return err;
2119
2120         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2121
2122         /* can mesh use other SMPS modes? */
2123         sdata->smps_mode = IEEE80211_SMPS_OFF;
2124         sdata->needed_rx_chains = sdata->local->rx_chains;
2125
2126         mutex_lock(&sdata->local->mtx);
2127         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2128                                         IEEE80211_CHANCTX_SHARED);
2129         mutex_unlock(&sdata->local->mtx);
2130         if (err)
2131                 return err;
2132
2133         return ieee80211_start_mesh(sdata);
2134 }
2135
2136 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2137 {
2138         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2139
2140         ieee80211_stop_mesh(sdata);
2141         mutex_lock(&sdata->local->mtx);
2142         ieee80211_vif_release_channel(sdata);
2143         mutex_unlock(&sdata->local->mtx);
2144
2145         return 0;
2146 }
2147 #endif
2148
2149 static int ieee80211_change_bss(struct wiphy *wiphy,
2150                                 struct net_device *dev,
2151                                 struct bss_parameters *params)
2152 {
2153         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2154         struct ieee80211_supported_band *sband;
2155         u32 changed = 0;
2156
2157         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2158                 return -ENOENT;
2159
2160         sband = ieee80211_get_sband(sdata);
2161         if (!sband)
2162                 return -EINVAL;
2163
2164         if (params->use_cts_prot >= 0) {
2165                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2166                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2167         }
2168         if (params->use_short_preamble >= 0) {
2169                 sdata->vif.bss_conf.use_short_preamble =
2170                         params->use_short_preamble;
2171                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2172         }
2173
2174         if (!sdata->vif.bss_conf.use_short_slot &&
2175             sband->band == NL80211_BAND_5GHZ) {
2176                 sdata->vif.bss_conf.use_short_slot = true;
2177                 changed |= BSS_CHANGED_ERP_SLOT;
2178         }
2179
2180         if (params->use_short_slot_time >= 0) {
2181                 sdata->vif.bss_conf.use_short_slot =
2182                         params->use_short_slot_time;
2183                 changed |= BSS_CHANGED_ERP_SLOT;
2184         }
2185
2186         if (params->basic_rates) {
2187                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2188                                          wiphy->bands[sband->band],
2189                                          params->basic_rates,
2190                                          params->basic_rates_len,
2191                                          &sdata->vif.bss_conf.basic_rates);
2192                 changed |= BSS_CHANGED_BASIC_RATES;
2193                 ieee80211_check_rate_mask(sdata);
2194         }
2195
2196         if (params->ap_isolate >= 0) {
2197                 if (params->ap_isolate)
2198                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2199                 else
2200                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2201                 ieee80211_check_fast_rx_iface(sdata);
2202         }
2203
2204         if (params->ht_opmode >= 0) {
2205                 sdata->vif.bss_conf.ht_operation_mode =
2206                         (u16) params->ht_opmode;
2207                 changed |= BSS_CHANGED_HT;
2208         }
2209
2210         if (params->p2p_ctwindow >= 0) {
2211                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2212                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2213                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2214                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2215                 changed |= BSS_CHANGED_P2P_PS;
2216         }
2217
2218         if (params->p2p_opp_ps > 0) {
2219                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2220                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2221                 changed |= BSS_CHANGED_P2P_PS;
2222         } else if (params->p2p_opp_ps == 0) {
2223                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2224                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2225                 changed |= BSS_CHANGED_P2P_PS;
2226         }
2227
2228         ieee80211_bss_info_change_notify(sdata, changed);
2229
2230         return 0;
2231 }
2232
2233 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2234                                     struct net_device *dev,
2235                                     struct ieee80211_txq_params *params)
2236 {
2237         struct ieee80211_local *local = wiphy_priv(wiphy);
2238         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2239         struct ieee80211_tx_queue_params p;
2240
2241         if (!local->ops->conf_tx)
2242                 return -EOPNOTSUPP;
2243
2244         if (local->hw.queues < IEEE80211_NUM_ACS)
2245                 return -EOPNOTSUPP;
2246
2247         memset(&p, 0, sizeof(p));
2248         p.aifs = params->aifs;
2249         p.cw_max = params->cwmax;
2250         p.cw_min = params->cwmin;
2251         p.txop = params->txop;
2252
2253         /*
2254          * Setting tx queue params disables u-apsd because it's only
2255          * called in master mode.
2256          */
2257         p.uapsd = false;
2258
2259         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2260
2261         sdata->tx_conf[params->ac] = p;
2262         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2263                 wiphy_debug(local->hw.wiphy,
2264                             "failed to set TX queue parameters for AC %d\n",
2265                             params->ac);
2266                 return -EINVAL;
2267         }
2268
2269         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2270
2271         return 0;
2272 }
2273
2274 #ifdef CONFIG_PM
2275 static int ieee80211_suspend(struct wiphy *wiphy,
2276                              struct cfg80211_wowlan *wowlan)
2277 {
2278         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2279 }
2280
2281 static int ieee80211_resume(struct wiphy *wiphy)
2282 {
2283         return __ieee80211_resume(wiphy_priv(wiphy));
2284 }
2285 #else
2286 #define ieee80211_suspend NULL
2287 #define ieee80211_resume NULL
2288 #endif
2289
2290 static int ieee80211_scan(struct wiphy *wiphy,
2291                           struct cfg80211_scan_request *req)
2292 {
2293         struct ieee80211_sub_if_data *sdata;
2294
2295         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2296
2297         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2298         case NL80211_IFTYPE_STATION:
2299         case NL80211_IFTYPE_ADHOC:
2300         case NL80211_IFTYPE_MESH_POINT:
2301         case NL80211_IFTYPE_P2P_CLIENT:
2302         case NL80211_IFTYPE_P2P_DEVICE:
2303                 break;
2304         case NL80211_IFTYPE_P2P_GO:
2305                 if (sdata->local->ops->hw_scan)
2306                         break;
2307                 /*
2308                  * FIXME: implement NoA while scanning in software,
2309                  * for now fall through to allow scanning only when
2310                  * beaconing hasn't been configured yet
2311                  */
2312                 /* fall through */
2313         case NL80211_IFTYPE_AP:
2314                 /*
2315                  * If the scan has been forced (and the driver supports
2316                  * forcing), don't care about being beaconing already.
2317                  * This will create problems to the attached stations (e.g. all
2318                  * the  frames sent while scanning on other channel will be
2319                  * lost)
2320                  */
2321                 if (sdata->u.ap.beacon &&
2322                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2323                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2324                         return -EOPNOTSUPP;
2325                 break;
2326         case NL80211_IFTYPE_NAN:
2327         default:
2328                 return -EOPNOTSUPP;
2329         }
2330
2331         return ieee80211_request_scan(sdata, req);
2332 }
2333
2334 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2335 {
2336         ieee80211_scan_cancel(wiphy_priv(wiphy));
2337 }
2338
2339 static int
2340 ieee80211_sched_scan_start(struct wiphy *wiphy,
2341                            struct net_device *dev,
2342                            struct cfg80211_sched_scan_request *req)
2343 {
2344         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2345
2346         if (!sdata->local->ops->sched_scan_start)
2347                 return -EOPNOTSUPP;
2348
2349         return ieee80211_request_sched_scan_start(sdata, req);
2350 }
2351
2352 static int
2353 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2354                           u64 reqid)
2355 {
2356         struct ieee80211_local *local = wiphy_priv(wiphy);
2357
2358         if (!local->ops->sched_scan_stop)
2359                 return -EOPNOTSUPP;
2360
2361         return ieee80211_request_sched_scan_stop(local);
2362 }
2363
2364 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2365                           struct cfg80211_auth_request *req)
2366 {
2367         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2368 }
2369
2370 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2371                            struct cfg80211_assoc_request *req)
2372 {
2373         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2374 }
2375
2376 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2377                             struct cfg80211_deauth_request *req)
2378 {
2379         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2380 }
2381
2382 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2383                               struct cfg80211_disassoc_request *req)
2384 {
2385         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2386 }
2387
2388 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2389                                struct cfg80211_ibss_params *params)
2390 {
2391         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2392 }
2393
2394 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2395 {
2396         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2397 }
2398
2399 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2400                               struct ocb_setup *setup)
2401 {
2402         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2403 }
2404
2405 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2406 {
2407         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2408 }
2409
2410 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2411                                     int rate[NUM_NL80211_BANDS])
2412 {
2413         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2414
2415         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2416                sizeof(int) * NUM_NL80211_BANDS);
2417
2418         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2419
2420         return 0;
2421 }
2422
2423 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2424 {
2425         struct ieee80211_local *local = wiphy_priv(wiphy);
2426         int err;
2427
2428         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2429                 ieee80211_check_fast_xmit_all(local);
2430
2431                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2432
2433                 if (err) {
2434                         ieee80211_check_fast_xmit_all(local);
2435                         return err;
2436                 }
2437         }
2438
2439         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2440             (changed & WIPHY_PARAM_DYN_ACK)) {
2441                 s16 coverage_class;
2442
2443                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2444                                         wiphy->coverage_class : -1;
2445                 err = drv_set_coverage_class(local, coverage_class);
2446
2447                 if (err)
2448                         return err;
2449         }
2450
2451         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2452                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2453
2454                 if (err)
2455                         return err;
2456         }
2457
2458         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2459                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2460                         return -EINVAL;
2461                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2462         }
2463         if (changed & WIPHY_PARAM_RETRY_LONG) {
2464                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2465                         return -EINVAL;
2466                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2467         }
2468         if (changed &
2469             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2470                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2471
2472         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2473                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2474                        WIPHY_PARAM_TXQ_QUANTUM))
2475                 ieee80211_txq_set_params(local);
2476
2477         return 0;
2478 }
2479
2480 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2481                                   struct wireless_dev *wdev,
2482                                   enum nl80211_tx_power_setting type, int mbm)
2483 {
2484         struct ieee80211_local *local = wiphy_priv(wiphy);
2485         struct ieee80211_sub_if_data *sdata;
2486         enum nl80211_tx_power_setting txp_type = type;
2487         bool update_txp_type = false;
2488         bool has_monitor = false;
2489
2490         if (wdev) {
2491                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2492
2493                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2494                         sdata = rtnl_dereference(local->monitor_sdata);
2495                         if (!sdata)
2496                                 return -EOPNOTSUPP;
2497                 }
2498
2499                 switch (type) {
2500                 case NL80211_TX_POWER_AUTOMATIC:
2501                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2502                         txp_type = NL80211_TX_POWER_LIMITED;
2503                         break;
2504                 case NL80211_TX_POWER_LIMITED:
2505                 case NL80211_TX_POWER_FIXED:
2506                         if (mbm < 0 || (mbm % 100))
2507                                 return -EOPNOTSUPP;
2508                         sdata->user_power_level = MBM_TO_DBM(mbm);
2509                         break;
2510                 }
2511
2512                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2513                         update_txp_type = true;
2514                         sdata->vif.bss_conf.txpower_type = txp_type;
2515                 }
2516
2517                 ieee80211_recalc_txpower(sdata, update_txp_type);
2518
2519                 return 0;
2520         }
2521
2522         switch (type) {
2523         case NL80211_TX_POWER_AUTOMATIC:
2524                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2525                 txp_type = NL80211_TX_POWER_LIMITED;
2526                 break;
2527         case NL80211_TX_POWER_LIMITED:
2528         case NL80211_TX_POWER_FIXED:
2529                 if (mbm < 0 || (mbm % 100))
2530                         return -EOPNOTSUPP;
2531                 local->user_power_level = MBM_TO_DBM(mbm);
2532                 break;
2533         }
2534
2535         mutex_lock(&local->iflist_mtx);
2536         list_for_each_entry(sdata, &local->interfaces, list) {
2537                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2538                         has_monitor = true;
2539                         continue;
2540                 }
2541                 sdata->user_power_level = local->user_power_level;
2542                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2543                         update_txp_type = true;
2544                 sdata->vif.bss_conf.txpower_type = txp_type;
2545         }
2546         list_for_each_entry(sdata, &local->interfaces, list) {
2547                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2548                         continue;
2549                 ieee80211_recalc_txpower(sdata, update_txp_type);
2550         }
2551         mutex_unlock(&local->iflist_mtx);
2552
2553         if (has_monitor) {
2554                 sdata = rtnl_dereference(local->monitor_sdata);
2555                 if (sdata) {
2556                         sdata->user_power_level = local->user_power_level;
2557                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2558                                 update_txp_type = true;
2559                         sdata->vif.bss_conf.txpower_type = txp_type;
2560
2561                         ieee80211_recalc_txpower(sdata, update_txp_type);
2562                 }
2563         }
2564
2565         return 0;
2566 }
2567
2568 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2569                                   struct wireless_dev *wdev,
2570                                   int *dbm)
2571 {
2572         struct ieee80211_local *local = wiphy_priv(wiphy);
2573         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2574
2575         if (local->ops->get_txpower)
2576                 return drv_get_txpower(local, sdata, dbm);
2577
2578         if (!local->use_chanctx)
2579                 *dbm = local->hw.conf.power_level;
2580         else
2581                 *dbm = sdata->vif.bss_conf.txpower;
2582
2583         return 0;
2584 }
2585
2586 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2587                                   const u8 *addr)
2588 {
2589         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2590
2591         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2592
2593         return 0;
2594 }
2595
2596 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2597 {
2598         struct ieee80211_local *local = wiphy_priv(wiphy);
2599
2600         drv_rfkill_poll(local);
2601 }
2602
2603 #ifdef CONFIG_NL80211_TESTMODE
2604 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2605                                   struct wireless_dev *wdev,
2606                                   void *data, int len)
2607 {
2608         struct ieee80211_local *local = wiphy_priv(wiphy);
2609         struct ieee80211_vif *vif = NULL;
2610
2611         if (!local->ops->testmode_cmd)
2612                 return -EOPNOTSUPP;
2613
2614         if (wdev) {
2615                 struct ieee80211_sub_if_data *sdata;
2616
2617                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2618                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2619                         vif = &sdata->vif;
2620         }
2621
2622         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2623 }
2624
2625 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2626                                    struct sk_buff *skb,
2627                                    struct netlink_callback *cb,
2628                                    void *data, int len)
2629 {
2630         struct ieee80211_local *local = wiphy_priv(wiphy);
2631
2632         if (!local->ops->testmode_dump)
2633                 return -EOPNOTSUPP;
2634
2635         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2636 }
2637 #endif
2638
2639 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2640                                  enum ieee80211_smps_mode smps_mode)
2641 {
2642         const u8 *ap;
2643         enum ieee80211_smps_mode old_req;
2644         int err;
2645         struct sta_info *sta;
2646         bool tdls_peer_found = false;
2647
2648         lockdep_assert_held(&sdata->wdev.mtx);
2649
2650         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2651                 return -EINVAL;
2652
2653         old_req = sdata->u.mgd.req_smps;
2654         sdata->u.mgd.req_smps = smps_mode;
2655
2656         if (old_req == smps_mode &&
2657             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2658                 return 0;
2659
2660         /*
2661          * If not associated, or current association is not an HT
2662          * association, there's no need to do anything, just store
2663          * the new value until we associate.
2664          */
2665         if (!sdata->u.mgd.associated ||
2666             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2667                 return 0;
2668
2669         ap = sdata->u.mgd.associated->bssid;
2670
2671         rcu_read_lock();
2672         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2673                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2674                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2675                         continue;
2676
2677                 tdls_peer_found = true;
2678                 break;
2679         }
2680         rcu_read_unlock();
2681
2682         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2683                 if (tdls_peer_found || !sdata->u.mgd.powersave)
2684                         smps_mode = IEEE80211_SMPS_OFF;
2685                 else
2686                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2687         }
2688
2689         /* send SM PS frame to AP */
2690         err = ieee80211_send_smps_action(sdata, smps_mode,
2691                                          ap, ap);
2692         if (err)
2693                 sdata->u.mgd.req_smps = old_req;
2694         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2695                 ieee80211_teardown_tdls_peers(sdata);
2696
2697         return err;
2698 }
2699
2700 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2701                                     bool enabled, int timeout)
2702 {
2703         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2704         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2705
2706         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2707                 return -EOPNOTSUPP;
2708
2709         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2710                 return -EOPNOTSUPP;
2711
2712         if (enabled == sdata->u.mgd.powersave &&
2713             timeout == local->dynamic_ps_forced_timeout)
2714                 return 0;
2715
2716         sdata->u.mgd.powersave = enabled;
2717         local->dynamic_ps_forced_timeout = timeout;
2718
2719         /* no change, but if automatic follow powersave */
2720         sdata_lock(sdata);
2721         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2722         sdata_unlock(sdata);
2723
2724         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2725                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2726
2727         ieee80211_recalc_ps(local);
2728         ieee80211_recalc_ps_vif(sdata);
2729         ieee80211_check_fast_rx_iface(sdata);
2730
2731         return 0;
2732 }
2733
2734 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2735                                          struct net_device *dev,
2736                                          s32 rssi_thold, u32 rssi_hyst)
2737 {
2738         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2739         struct ieee80211_vif *vif = &sdata->vif;
2740         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2741
2742         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2743             rssi_hyst == bss_conf->cqm_rssi_hyst)
2744                 return 0;
2745
2746         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2747             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2748                 return -EOPNOTSUPP;
2749
2750         bss_conf->cqm_rssi_thold = rssi_thold;
2751         bss_conf->cqm_rssi_hyst = rssi_hyst;
2752         bss_conf->cqm_rssi_low = 0;
2753         bss_conf->cqm_rssi_high = 0;
2754         sdata->u.mgd.last_cqm_event_signal = 0;
2755
2756         /* tell the driver upon association, unless already associated */
2757         if (sdata->u.mgd.associated &&
2758             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2759                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2760
2761         return 0;
2762 }
2763
2764 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2765                                                struct net_device *dev,
2766                                                s32 rssi_low, s32 rssi_high)
2767 {
2768         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2769         struct ieee80211_vif *vif = &sdata->vif;
2770         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2771
2772         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2773                 return -EOPNOTSUPP;
2774
2775         bss_conf->cqm_rssi_low = rssi_low;
2776         bss_conf->cqm_rssi_high = rssi_high;
2777         bss_conf->cqm_rssi_thold = 0;
2778         bss_conf->cqm_rssi_hyst = 0;
2779         sdata->u.mgd.last_cqm_event_signal = 0;
2780
2781         /* tell the driver upon association, unless already associated */
2782         if (sdata->u.mgd.associated &&
2783             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2784                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2785
2786         return 0;
2787 }
2788
2789 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2790                                       struct net_device *dev,
2791                                       const u8 *addr,
2792                                       const struct cfg80211_bitrate_mask *mask)
2793 {
2794         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2795         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2796         int i, ret;
2797
2798         if (!ieee80211_sdata_running(sdata))
2799                 return -ENETDOWN;
2800
2801         /*
2802          * If active validate the setting and reject it if it doesn't leave
2803          * at least one basic rate usable, since we really have to be able
2804          * to send something, and if we're an AP we have to be able to do
2805          * so at a basic rate so that all clients can receive it.
2806          */
2807         if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2808             sdata->vif.bss_conf.chandef.chan) {
2809                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2810                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2811
2812                 if (!(mask->control[band].legacy & basic_rates))
2813                         return -EINVAL;
2814         }
2815
2816         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2817                 ret = drv_set_bitrate_mask(local, sdata, mask);
2818                 if (ret)
2819                         return ret;
2820         }
2821
2822         for (i = 0; i < NUM_NL80211_BANDS; i++) {
2823                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2824                 int j;
2825
2826                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2827                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2828                        sizeof(mask->control[i].ht_mcs));
2829                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2830                        mask->control[i].vht_mcs,
2831                        sizeof(mask->control[i].vht_mcs));
2832
2833                 sdata->rc_has_mcs_mask[i] = false;
2834                 sdata->rc_has_vht_mcs_mask[i] = false;
2835                 if (!sband)
2836                         continue;
2837
2838                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2839                         if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2840                                 sdata->rc_has_mcs_mask[i] = true;
2841                                 break;
2842                         }
2843                 }
2844
2845                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2846                         if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2847                                 sdata->rc_has_vht_mcs_mask[i] = true;
2848                                 break;
2849                         }
2850                 }
2851         }
2852
2853         return 0;
2854 }
2855
2856 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2857                                            struct net_device *dev,
2858                                            struct cfg80211_chan_def *chandef,
2859                                            u32 cac_time_ms)
2860 {
2861         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2862         struct ieee80211_local *local = sdata->local;
2863         int err;
2864
2865         mutex_lock(&local->mtx);
2866         if (!list_empty(&local->roc_list) || local->scanning) {
2867                 err = -EBUSY;
2868                 goto out_unlock;
2869         }
2870
2871         /* whatever, but channel contexts should not complain about that one */
2872         sdata->smps_mode = IEEE80211_SMPS_OFF;
2873         sdata->needed_rx_chains = local->rx_chains;
2874
2875         err = ieee80211_vif_use_channel(sdata, chandef,
2876                                         IEEE80211_CHANCTX_SHARED);
2877         if (err)
2878                 goto out_unlock;
2879
2880         ieee80211_queue_delayed_work(&sdata->local->hw,
2881                                      &sdata->dfs_cac_timer_work,
2882                                      msecs_to_jiffies(cac_time_ms));
2883
2884  out_unlock:
2885         mutex_unlock(&local->mtx);
2886         return err;
2887 }
2888
2889 static void ieee80211_end_cac(struct wiphy *wiphy,
2890                               struct net_device *dev)
2891 {
2892         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2893         struct ieee80211_local *local = sdata->local;
2894
2895         mutex_lock(&local->mtx);
2896         list_for_each_entry(sdata, &local->interfaces, list) {
2897                 /* it might be waiting for the local->mtx, but then
2898                  * by the time it gets it, sdata->wdev.cac_started
2899                  * will no longer be true
2900                  */
2901                 cancel_delayed_work(&sdata->dfs_cac_timer_work);
2902
2903                 if (sdata->wdev.cac_started) {
2904                         ieee80211_vif_release_channel(sdata);
2905                         sdata->wdev.cac_started = false;
2906                 }
2907         }
2908         mutex_unlock(&local->mtx);
2909 }
2910
2911 static struct cfg80211_beacon_data *
2912 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2913 {
2914         struct cfg80211_beacon_data *new_beacon;
2915         u8 *pos;
2916         int len;
2917
2918         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2919               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2920               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
2921
2922         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2923         if (!new_beacon)
2924                 return NULL;
2925
2926         pos = (u8 *)(new_beacon + 1);
2927         if (beacon->head_len) {
2928                 new_beacon->head_len = beacon->head_len;
2929                 new_beacon->head = pos;
2930                 memcpy(pos, beacon->head, beacon->head_len);
2931                 pos += beacon->head_len;
2932         }
2933         if (beacon->tail_len) {
2934                 new_beacon->tail_len = beacon->tail_len;
2935                 new_beacon->tail = pos;
2936                 memcpy(pos, beacon->tail, beacon->tail_len);
2937                 pos += beacon->tail_len;
2938         }
2939         if (beacon->beacon_ies_len) {
2940                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2941                 new_beacon->beacon_ies = pos;
2942                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2943                 pos += beacon->beacon_ies_len;
2944         }
2945         if (beacon->proberesp_ies_len) {
2946                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2947                 new_beacon->proberesp_ies = pos;
2948                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2949                 pos += beacon->proberesp_ies_len;
2950         }
2951         if (beacon->assocresp_ies_len) {
2952                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2953                 new_beacon->assocresp_ies = pos;
2954                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2955                 pos += beacon->assocresp_ies_len;
2956         }
2957         if (beacon->probe_resp_len) {
2958                 new_beacon->probe_resp_len = beacon->probe_resp_len;
2959                 new_beacon->probe_resp = pos;
2960                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2961                 pos += beacon->probe_resp_len;
2962         }
2963
2964         /* might copy -1, meaning no changes requested */
2965         new_beacon->ftm_responder = beacon->ftm_responder;
2966         if (beacon->lci) {
2967                 new_beacon->lci_len = beacon->lci_len;
2968                 new_beacon->lci = pos;
2969                 memcpy(pos, beacon->lci, beacon->lci_len);
2970                 pos += beacon->lci_len;
2971         }
2972         if (beacon->civicloc) {
2973                 new_beacon->civicloc_len = beacon->civicloc_len;
2974                 new_beacon->civicloc = pos;
2975                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
2976                 pos += beacon->civicloc_len;
2977         }
2978
2979         return new_beacon;
2980 }
2981
2982 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2983 {
2984         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2985
2986         ieee80211_queue_work(&sdata->local->hw,
2987                              &sdata->csa_finalize_work);
2988 }
2989 EXPORT_SYMBOL(ieee80211_csa_finish);
2990
2991 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2992                                           u32 *changed)
2993 {
2994         int err;
2995
2996         switch (sdata->vif.type) {
2997         case NL80211_IFTYPE_AP:
2998                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2999                                               NULL);
3000                 kfree(sdata->u.ap.next_beacon);
3001                 sdata->u.ap.next_beacon = NULL;
3002
3003                 if (err < 0)
3004                         return err;
3005                 *changed |= err;
3006                 break;
3007         case NL80211_IFTYPE_ADHOC:
3008                 err = ieee80211_ibss_finish_csa(sdata);
3009                 if (err < 0)
3010                         return err;
3011                 *changed |= err;
3012                 break;
3013 #ifdef CONFIG_MAC80211_MESH
3014         case NL80211_IFTYPE_MESH_POINT:
3015                 err = ieee80211_mesh_finish_csa(sdata);
3016                 if (err < 0)
3017                         return err;
3018                 *changed |= err;
3019                 break;
3020 #endif
3021         default:
3022                 WARN_ON(1);
3023                 return -EINVAL;
3024         }
3025
3026         return 0;
3027 }
3028
3029 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3030 {
3031         struct ieee80211_local *local = sdata->local;
3032         u32 changed = 0;
3033         int err;
3034
3035         sdata_assert_lock(sdata);
3036         lockdep_assert_held(&local->mtx);
3037         lockdep_assert_held(&local->chanctx_mtx);
3038
3039         /*
3040          * using reservation isn't immediate as it may be deferred until later
3041          * with multi-vif. once reservation is complete it will re-schedule the
3042          * work with no reserved_chanctx so verify chandef to check if it
3043          * completed successfully
3044          */
3045
3046         if (sdata->reserved_chanctx) {
3047                 /*
3048                  * with multi-vif csa driver may call ieee80211_csa_finish()
3049                  * many times while waiting for other interfaces to use their
3050                  * reservations
3051                  */
3052                 if (sdata->reserved_ready)
3053                         return 0;
3054
3055                 return ieee80211_vif_use_reserved_context(sdata);
3056         }
3057
3058         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3059                                         &sdata->csa_chandef))
3060                 return -EINVAL;
3061
3062         sdata->vif.csa_active = false;
3063
3064         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3065         if (err)
3066                 return err;
3067
3068         ieee80211_bss_info_change_notify(sdata, changed);
3069
3070         if (sdata->csa_block_tx) {
3071                 ieee80211_wake_vif_queues(local, sdata,
3072                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3073                 sdata->csa_block_tx = false;
3074         }
3075
3076         err = drv_post_channel_switch(sdata);
3077         if (err)
3078                 return err;
3079
3080         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3081
3082         return 0;
3083 }
3084
3085 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3086 {
3087         if (__ieee80211_csa_finalize(sdata)) {
3088                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3089                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3090                                     GFP_KERNEL);
3091         }
3092 }
3093
3094 void ieee80211_csa_finalize_work(struct work_struct *work)
3095 {
3096         struct ieee80211_sub_if_data *sdata =
3097                 container_of(work, struct ieee80211_sub_if_data,
3098                              csa_finalize_work);
3099         struct ieee80211_local *local = sdata->local;
3100
3101         sdata_lock(sdata);
3102         mutex_lock(&local->mtx);
3103         mutex_lock(&local->chanctx_mtx);
3104
3105         /* AP might have been stopped while waiting for the lock. */
3106         if (!sdata->vif.csa_active)
3107                 goto unlock;
3108
3109         if (!ieee80211_sdata_running(sdata))
3110                 goto unlock;
3111
3112         ieee80211_csa_finalize(sdata);
3113
3114 unlock:
3115         mutex_unlock(&local->chanctx_mtx);
3116         mutex_unlock(&local->mtx);
3117         sdata_unlock(sdata);
3118 }
3119
3120 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3121                                     struct cfg80211_csa_settings *params,
3122                                     u32 *changed)
3123 {
3124         struct ieee80211_csa_settings csa = {};
3125         int err;
3126
3127         switch (sdata->vif.type) {
3128         case NL80211_IFTYPE_AP:
3129                 sdata->u.ap.next_beacon =
3130                         cfg80211_beacon_dup(&params->beacon_after);
3131                 if (!sdata->u.ap.next_beacon)
3132                         return -ENOMEM;
3133
3134                 /*
3135                  * With a count of 0, we don't have to wait for any
3136                  * TBTT before switching, so complete the CSA
3137                  * immediately.  In theory, with a count == 1 we
3138                  * should delay the switch until just before the next
3139                  * TBTT, but that would complicate things so we switch
3140                  * immediately too.  If we would delay the switch
3141                  * until the next TBTT, we would have to set the probe
3142                  * response here.
3143                  *
3144                  * TODO: A channel switch with count <= 1 without
3145                  * sending a CSA action frame is kind of useless,
3146                  * because the clients won't know we're changing
3147                  * channels.  The action frame must be implemented
3148                  * either here or in the userspace.
3149                  */
3150                 if (params->count <= 1)
3151                         break;
3152
3153                 if ((params->n_counter_offsets_beacon >
3154                      IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3155                     (params->n_counter_offsets_presp >
3156                      IEEE80211_MAX_CSA_COUNTERS_NUM))
3157                         return -EINVAL;
3158
3159                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3160                 csa.counter_offsets_presp = params->counter_offsets_presp;
3161                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3162                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3163                 csa.count = params->count;
3164
3165                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3166                 if (err < 0) {
3167                         kfree(sdata->u.ap.next_beacon);
3168                         return err;
3169                 }
3170                 *changed |= err;
3171
3172                 break;
3173         case NL80211_IFTYPE_ADHOC:
3174                 if (!sdata->vif.bss_conf.ibss_joined)
3175                         return -EINVAL;
3176
3177                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3178                         return -EINVAL;
3179
3180                 switch (params->chandef.width) {
3181                 case NL80211_CHAN_WIDTH_40:
3182                         if (cfg80211_get_chandef_type(&params->chandef) !=
3183                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3184                                 return -EINVAL;
3185                 case NL80211_CHAN_WIDTH_5:
3186                 case NL80211_CHAN_WIDTH_10:
3187                 case NL80211_CHAN_WIDTH_20_NOHT:
3188                 case NL80211_CHAN_WIDTH_20:
3189                         break;
3190                 default:
3191                         return -EINVAL;
3192                 }
3193
3194                 /* changes into another band are not supported */
3195                 if (sdata->u.ibss.chandef.chan->band !=
3196                     params->chandef.chan->band)
3197                         return -EINVAL;
3198
3199                 /* see comments in the NL80211_IFTYPE_AP block */
3200                 if (params->count > 1) {
3201                         err = ieee80211_ibss_csa_beacon(sdata, params);
3202                         if (err < 0)
3203                                 return err;
3204                         *changed |= err;
3205                 }
3206
3207                 ieee80211_send_action_csa(sdata, params);
3208
3209                 break;
3210 #ifdef CONFIG_MAC80211_MESH
3211         case NL80211_IFTYPE_MESH_POINT: {
3212                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3213
3214                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3215                         return -EINVAL;
3216
3217                 /* changes into another band are not supported */
3218                 if (sdata->vif.bss_conf.chandef.chan->band !=
3219                     params->chandef.chan->band)
3220                         return -EINVAL;
3221
3222                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3223                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3224                         if (!ifmsh->pre_value)
3225                                 ifmsh->pre_value = 1;
3226                         else
3227                                 ifmsh->pre_value++;
3228                 }
3229
3230                 /* see comments in the NL80211_IFTYPE_AP block */
3231                 if (params->count > 1) {
3232                         err = ieee80211_mesh_csa_beacon(sdata, params);
3233                         if (err < 0) {
3234                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3235                                 return err;
3236                         }
3237                         *changed |= err;
3238                 }
3239
3240                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3241                         ieee80211_send_action_csa(sdata, params);
3242
3243                 break;
3244                 }
3245 #endif
3246         default:
3247                 return -EOPNOTSUPP;
3248         }
3249
3250         return 0;
3251 }
3252
3253 static int
3254 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3255                            struct cfg80211_csa_settings *params)
3256 {
3257         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3258         struct ieee80211_local *local = sdata->local;
3259         struct ieee80211_channel_switch ch_switch;
3260         struct ieee80211_chanctx_conf *conf;
3261         struct ieee80211_chanctx *chanctx;
3262         u32 changed = 0;
3263         int err;
3264
3265         sdata_assert_lock(sdata);
3266         lockdep_assert_held(&local->mtx);
3267
3268         if (!list_empty(&local->roc_list) || local->scanning)
3269                 return -EBUSY;
3270
3271         if (sdata->wdev.cac_started)
3272                 return -EBUSY;
3273
3274         if (cfg80211_chandef_identical(&params->chandef,
3275                                        &sdata->vif.bss_conf.chandef))
3276                 return -EINVAL;
3277
3278         /* don't allow another channel switch if one is already active. */
3279         if (sdata->vif.csa_active)
3280                 return -EBUSY;
3281
3282         mutex_lock(&local->chanctx_mtx);
3283         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3284                                          lockdep_is_held(&local->chanctx_mtx));
3285         if (!conf) {
3286                 err = -EBUSY;
3287                 goto out;
3288         }
3289
3290         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3291
3292         ch_switch.timestamp = 0;
3293         ch_switch.device_timestamp = 0;
3294         ch_switch.block_tx = params->block_tx;
3295         ch_switch.chandef = params->chandef;
3296         ch_switch.count = params->count;
3297
3298         err = drv_pre_channel_switch(sdata, &ch_switch);
3299         if (err)
3300                 goto out;
3301
3302         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3303                                             chanctx->mode,
3304                                             params->radar_required);
3305         if (err)
3306                 goto out;
3307
3308         /* if reservation is invalid then this will fail */
3309         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3310         if (err) {
3311                 ieee80211_vif_unreserve_chanctx(sdata);
3312                 goto out;
3313         }
3314
3315         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3316         if (err) {
3317                 ieee80211_vif_unreserve_chanctx(sdata);
3318                 goto out;
3319         }
3320
3321         sdata->csa_chandef = params->chandef;
3322         sdata->csa_block_tx = params->block_tx;
3323         sdata->vif.csa_active = true;
3324
3325         if (sdata->csa_block_tx)
3326                 ieee80211_stop_vif_queues(local, sdata,
3327                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3328
3329         cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3330                                           params->count);
3331
3332         if (changed) {
3333                 ieee80211_bss_info_change_notify(sdata, changed);
3334                 drv_channel_switch_beacon(sdata, &params->chandef);
3335         } else {
3336                 /* if the beacon didn't change, we can finalize immediately */
3337                 ieee80211_csa_finalize(sdata);
3338         }
3339
3340 out:
3341         mutex_unlock(&local->chanctx_mtx);
3342         return err;
3343 }
3344
3345 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3346                              struct cfg80211_csa_settings *params)
3347 {
3348         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3349         struct ieee80211_local *local = sdata->local;
3350         int err;
3351
3352         mutex_lock(&local->mtx);
3353         err = __ieee80211_channel_switch(wiphy, dev, params);
3354         mutex_unlock(&local->mtx);
3355
3356         return err;
3357 }
3358
3359 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3360 {
3361         lockdep_assert_held(&local->mtx);
3362
3363         local->roc_cookie_counter++;
3364
3365         /* wow, you wrapped 64 bits ... more likely a bug */
3366         if (WARN_ON(local->roc_cookie_counter == 0))
3367                 local->roc_cookie_counter++;
3368
3369         return local->roc_cookie_counter;
3370 }
3371
3372 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3373                              u64 *cookie, gfp_t gfp)
3374 {
3375         unsigned long spin_flags;
3376         struct sk_buff *ack_skb;
3377         int id;
3378
3379         ack_skb = skb_copy(skb, gfp);
3380         if (!ack_skb)
3381                 return -ENOMEM;
3382
3383         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3384         id = idr_alloc(&local->ack_status_frames, ack_skb,
3385                        1, 0x2000, GFP_ATOMIC);
3386         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3387
3388         if (id < 0) {
3389                 kfree_skb(ack_skb);
3390                 return -ENOMEM;
3391         }
3392
3393         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3394
3395         *cookie = ieee80211_mgmt_tx_cookie(local);
3396         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3397
3398         return 0;
3399 }
3400
3401 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3402                                           struct wireless_dev *wdev,
3403                                           u16 frame_type, bool reg)
3404 {
3405         struct ieee80211_local *local = wiphy_priv(wiphy);
3406         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3407
3408         switch (frame_type) {
3409         case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3410                 if (reg) {
3411                         local->probe_req_reg++;
3412                         sdata->vif.probe_req_reg++;
3413                 } else {
3414                         if (local->probe_req_reg)
3415                                 local->probe_req_reg--;
3416
3417                         if (sdata->vif.probe_req_reg)
3418                                 sdata->vif.probe_req_reg--;
3419                 }
3420
3421                 if (!local->open_count)
3422                         break;
3423
3424                 if (sdata->vif.probe_req_reg == 1)
3425                         drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3426                                                 FIF_PROBE_REQ);
3427                 else if (sdata->vif.probe_req_reg == 0)
3428                         drv_config_iface_filter(local, sdata, 0,
3429                                                 FIF_PROBE_REQ);
3430
3431                 ieee80211_configure_filter(local);
3432                 break;
3433         default:
3434                 break;
3435         }
3436 }
3437
3438 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3439 {
3440         struct ieee80211_local *local = wiphy_priv(wiphy);
3441
3442         if (local->started)
3443                 return -EOPNOTSUPP;
3444
3445         return drv_set_antenna(local, tx_ant, rx_ant);
3446 }
3447
3448 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3449 {
3450         struct ieee80211_local *local = wiphy_priv(wiphy);
3451
3452         return drv_get_antenna(local, tx_ant, rx_ant);
3453 }
3454
3455 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3456                                     struct net_device *dev,
3457                                     struct cfg80211_gtk_rekey_data *data)
3458 {
3459         struct ieee80211_local *local = wiphy_priv(wiphy);
3460         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3461
3462         if (!local->ops->set_rekey_data)
3463                 return -EOPNOTSUPP;
3464
3465         drv_set_rekey_data(local, sdata, data);
3466
3467         return 0;
3468 }
3469
3470 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3471                                   const u8 *peer, u64 *cookie)
3472 {
3473         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3474         struct ieee80211_local *local = sdata->local;
3475         struct ieee80211_qos_hdr *nullfunc;
3476         struct sk_buff *skb;
3477         int size = sizeof(*nullfunc);
3478         __le16 fc;
3479         bool qos;
3480         struct ieee80211_tx_info *info;
3481         struct sta_info *sta;
3482         struct ieee80211_chanctx_conf *chanctx_conf;
3483         enum nl80211_band band;
3484         int ret;
3485
3486         /* the lock is needed to assign the cookie later */
3487         mutex_lock(&local->mtx);
3488
3489         rcu_read_lock();
3490         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3491         if (WARN_ON(!chanctx_conf)) {
3492                 ret = -EINVAL;
3493                 goto unlock;
3494         }
3495         band = chanctx_conf->def.chan->band;
3496         sta = sta_info_get_bss(sdata, peer);
3497         if (sta) {
3498                 qos = sta->sta.wme;
3499         } else {
3500                 ret = -ENOLINK;
3501                 goto unlock;
3502         }
3503
3504         if (qos) {
3505                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3506                                  IEEE80211_STYPE_QOS_NULLFUNC |
3507                                  IEEE80211_FCTL_FROMDS);
3508         } else {
3509                 size -= 2;
3510                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3511                                  IEEE80211_STYPE_NULLFUNC |
3512                                  IEEE80211_FCTL_FROMDS);
3513         }
3514
3515         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3516         if (!skb) {
3517                 ret = -ENOMEM;
3518                 goto unlock;
3519         }
3520
3521         skb->dev = dev;
3522
3523         skb_reserve(skb, local->hw.extra_tx_headroom);
3524
3525         nullfunc = skb_put(skb, size);
3526         nullfunc->frame_control = fc;
3527         nullfunc->duration_id = 0;
3528         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3529         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3530         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3531         nullfunc->seq_ctrl = 0;
3532
3533         info = IEEE80211_SKB_CB(skb);
3534
3535         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3536                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3537         info->band = band;
3538
3539         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3540         skb->priority = 7;
3541         if (qos)
3542                 nullfunc->qos_ctrl = cpu_to_le16(7);
3543
3544         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3545         if (ret) {
3546                 kfree_skb(skb);
3547                 goto unlock;
3548         }
3549
3550         local_bh_disable();
3551         ieee80211_xmit(sdata, sta, skb, 0);
3552         local_bh_enable();
3553
3554         ret = 0;
3555 unlock:
3556         rcu_read_unlock();
3557         mutex_unlock(&local->mtx);
3558
3559         return ret;
3560 }
3561
3562 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3563                                      struct wireless_dev *wdev,
3564                                      struct cfg80211_chan_def *chandef)
3565 {
3566         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3567         struct ieee80211_local *local = wiphy_priv(wiphy);
3568         struct ieee80211_chanctx_conf *chanctx_conf;
3569         int ret = -ENODATA;
3570
3571         rcu_read_lock();
3572         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3573         if (chanctx_conf) {
3574                 *chandef = sdata->vif.bss_conf.chandef;
3575                 ret = 0;
3576         } else if (local->open_count > 0 &&
3577                    local->open_count == local->monitors &&
3578                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3579                 if (local->use_chanctx)
3580                         *chandef = local->monitor_chandef;
3581                 else
3582                         *chandef = local->_oper_chandef;
3583                 ret = 0;
3584         }
3585         rcu_read_unlock();
3586
3587         return ret;
3588 }
3589
3590 #ifdef CONFIG_PM
3591 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3592 {
3593         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3594 }
3595 #endif
3596
3597 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3598                                  struct net_device *dev,
3599                                  struct cfg80211_qos_map *qos_map)
3600 {
3601         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3602         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3603
3604         if (qos_map) {
3605                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3606                 if (!new_qos_map)
3607                         return -ENOMEM;
3608                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3609         } else {
3610                 /* A NULL qos_map was passed to disable QoS mapping */
3611                 new_qos_map = NULL;
3612         }
3613
3614         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3615         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3616         if (old_qos_map)
3617                 kfree_rcu(old_qos_map, rcu_head);
3618
3619         return 0;
3620 }
3621
3622 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3623                                       struct net_device *dev,
3624                                       struct cfg80211_chan_def *chandef)
3625 {
3626         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3627         int ret;
3628         u32 changed = 0;
3629
3630         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3631         if (ret == 0)
3632                 ieee80211_bss_info_change_notify(sdata, changed);
3633
3634         return ret;
3635 }
3636
3637 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3638                                u8 tsid, const u8 *peer, u8 up,
3639                                u16 admitted_time)
3640 {
3641         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3642         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3643         int ac = ieee802_1d_to_ac[up];
3644
3645         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3646                 return -EOPNOTSUPP;
3647
3648         if (!(sdata->wmm_acm & BIT(up)))
3649                 return -EINVAL;
3650
3651         if (ifmgd->tx_tspec[ac].admitted_time)
3652                 return -EBUSY;
3653
3654         if (admitted_time) {
3655                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3656                 ifmgd->tx_tspec[ac].tsid = tsid;
3657                 ifmgd->tx_tspec[ac].up = up;
3658         }
3659
3660         return 0;
3661 }
3662
3663 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3664                                u8 tsid, const u8 *peer)
3665 {
3666         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3667         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3668         struct ieee80211_local *local = wiphy_priv(wiphy);
3669         int ac;
3670
3671         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3672                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3673
3674                 /* skip unused entries */
3675                 if (!tx_tspec->admitted_time)
3676                         continue;
3677
3678                 if (tx_tspec->tsid != tsid)
3679                         continue;
3680
3681                 /* due to this new packets will be reassigned to non-ACM ACs */
3682                 tx_tspec->up = -1;
3683
3684                 /* Make sure that all packets have been sent to avoid to
3685                  * restore the QoS params on packets that are still on the
3686                  * queues.
3687                  */
3688                 synchronize_net();
3689                 ieee80211_flush_queues(local, sdata, false);
3690
3691                 /* restore the normal QoS parameters
3692                  * (unconditionally to avoid races)
3693                  */
3694                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3695                 tx_tspec->downgraded = false;
3696                 ieee80211_sta_handle_tspec_ac_params(sdata);
3697
3698                 /* finally clear all the data */
3699                 memset(tx_tspec, 0, sizeof(*tx_tspec));
3700
3701                 return 0;
3702         }
3703
3704         return -ENOENT;
3705 }
3706
3707 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3708                                    u8 inst_id,
3709                                    enum nl80211_nan_func_term_reason reason,
3710                                    gfp_t gfp)
3711 {
3712         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3713         struct cfg80211_nan_func *func;
3714         u64 cookie;
3715
3716         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3717                 return;
3718
3719         spin_lock_bh(&sdata->u.nan.func_lock);
3720
3721         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3722         if (WARN_ON(!func)) {
3723                 spin_unlock_bh(&sdata->u.nan.func_lock);
3724                 return;
3725         }
3726
3727         cookie = func->cookie;
3728         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3729
3730         spin_unlock_bh(&sdata->u.nan.func_lock);
3731
3732         cfg80211_free_nan_func(func);
3733
3734         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3735                                      reason, cookie, gfp);
3736 }
3737 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3738
3739 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3740                               struct cfg80211_nan_match_params *match,
3741                               gfp_t gfp)
3742 {
3743         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3744         struct cfg80211_nan_func *func;
3745
3746         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3747                 return;
3748
3749         spin_lock_bh(&sdata->u.nan.func_lock);
3750
3751         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3752         if (WARN_ON(!func)) {
3753                 spin_unlock_bh(&sdata->u.nan.func_lock);
3754                 return;
3755         }
3756         match->cookie = func->cookie;
3757
3758         spin_unlock_bh(&sdata->u.nan.func_lock);
3759
3760         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3761 }
3762 EXPORT_SYMBOL(ieee80211_nan_func_match);
3763
3764 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3765                                               struct net_device *dev,
3766                                               const bool enabled)
3767 {
3768         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3769
3770         sdata->u.ap.multicast_to_unicast = enabled;
3771
3772         return 0;
3773 }
3774
3775 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3776                               struct txq_info *txqi)
3777 {
3778         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3779                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3780                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3781         }
3782
3783         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3784                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3785                 txqstats->backlog_packets = txqi->tin.backlog_packets;
3786         }
3787
3788         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3789                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3790                 txqstats->flows = txqi->tin.flows;
3791         }
3792
3793         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3794                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3795                 txqstats->drops = txqi->cstats.drop_count;
3796         }
3797
3798         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3799                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3800                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3801         }
3802
3803         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3804                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3805                 txqstats->overlimit = txqi->tin.overlimit;
3806         }
3807
3808         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3809                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3810                 txqstats->collisions = txqi->tin.collisions;
3811         }
3812
3813         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3814                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3815                 txqstats->tx_bytes = txqi->tin.tx_bytes;
3816         }
3817
3818         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3819                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3820                 txqstats->tx_packets = txqi->tin.tx_packets;
3821         }
3822 }
3823
3824 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3825                                    struct wireless_dev *wdev,
3826                                    struct cfg80211_txq_stats *txqstats)
3827 {
3828         struct ieee80211_local *local = wiphy_priv(wiphy);
3829         struct ieee80211_sub_if_data *sdata;
3830         int ret = 0;
3831
3832         if (!local->ops->wake_tx_queue)
3833                 return 1;
3834
3835         spin_lock_bh(&local->fq.lock);
3836         rcu_read_lock();
3837
3838         if (wdev) {
3839                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3840                 if (!sdata->vif.txq) {
3841                         ret = 1;
3842                         goto out;
3843                 }
3844                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3845         } else {
3846                 /* phy stats */
3847                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3848                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3849                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3850                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3851                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
3852                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3853                 txqstats->backlog_packets = local->fq.backlog;
3854                 txqstats->backlog_bytes = local->fq.memory_usage;
3855                 txqstats->overlimit = local->fq.overlimit;
3856                 txqstats->overmemory = local->fq.overmemory;
3857                 txqstats->collisions = local->fq.collisions;
3858                 txqstats->max_flows = local->fq.flows_cnt;
3859         }
3860
3861 out:
3862         rcu_read_unlock();
3863         spin_unlock_bh(&local->fq.lock);
3864
3865         return ret;
3866 }
3867
3868 static int
3869 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
3870                                   struct net_device *dev,
3871                                   struct cfg80211_ftm_responder_stats *ftm_stats)
3872 {
3873         struct ieee80211_local *local = wiphy_priv(wiphy);
3874         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3875
3876         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
3877 }
3878
3879 static int
3880 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3881                      struct cfg80211_pmsr_request *request)
3882 {
3883         struct ieee80211_local *local = wiphy_priv(wiphy);
3884         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3885
3886         return drv_start_pmsr(local, sdata, request);
3887 }
3888
3889 static void
3890 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3891                      struct cfg80211_pmsr_request *request)
3892 {
3893         struct ieee80211_local *local = wiphy_priv(wiphy);
3894         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3895
3896         return drv_abort_pmsr(local, sdata, request);
3897 }
3898
3899 static int ieee80211_set_tid_config(struct wiphy *wiphy,
3900                                     struct net_device *dev,
3901                                     struct cfg80211_tid_config *tid_conf)
3902 {
3903         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3904         struct sta_info *sta;
3905         int ret;
3906
3907         if (!sdata->local->ops->set_tid_config)
3908                 return -EOPNOTSUPP;
3909
3910         if (!tid_conf->peer)
3911                 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
3912
3913         mutex_lock(&sdata->local->sta_mtx);
3914         sta = sta_info_get_bss(sdata, tid_conf->peer);
3915         if (!sta) {
3916                 mutex_unlock(&sdata->local->sta_mtx);
3917                 return -ENOENT;
3918         }
3919
3920         ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
3921         mutex_unlock(&sdata->local->sta_mtx);
3922
3923         return ret;
3924 }
3925
3926 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
3927                                       struct net_device *dev,
3928                                       const u8 *peer, u8 tid)
3929 {
3930         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3931         struct sta_info *sta;
3932         int ret;
3933
3934         if (!sdata->local->ops->reset_tid_config)
3935                 return -EOPNOTSUPP;
3936
3937         if (!peer)
3938                 return drv_reset_tid_config(sdata->local, sdata, NULL, tid);
3939
3940         mutex_lock(&sdata->local->sta_mtx);
3941         sta = sta_info_get_bss(sdata, peer);
3942         if (!sta) {
3943                 mutex_unlock(&sdata->local->sta_mtx);
3944                 return -ENOENT;
3945         }
3946
3947         ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tid);
3948         mutex_unlock(&sdata->local->sta_mtx);
3949
3950         return ret;
3951 }
3952
3953 const struct cfg80211_ops mac80211_config_ops = {
3954         .add_virtual_intf = ieee80211_add_iface,
3955         .del_virtual_intf = ieee80211_del_iface,
3956         .change_virtual_intf = ieee80211_change_iface,
3957         .start_p2p_device = ieee80211_start_p2p_device,
3958         .stop_p2p_device = ieee80211_stop_p2p_device,
3959         .add_key = ieee80211_add_key,
3960         .del_key = ieee80211_del_key,
3961         .get_key = ieee80211_get_key,
3962         .set_default_key = ieee80211_config_default_key,
3963         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3964         .set_default_beacon_key = ieee80211_config_default_beacon_key,
3965         .start_ap = ieee80211_start_ap,
3966         .change_beacon = ieee80211_change_beacon,
3967         .stop_ap = ieee80211_stop_ap,
3968         .add_station = ieee80211_add_station,
3969         .del_station = ieee80211_del_station,
3970         .change_station = ieee80211_change_station,
3971         .get_station = ieee80211_get_station,
3972         .dump_station = ieee80211_dump_station,
3973         .dump_survey = ieee80211_dump_survey,
3974 #ifdef CONFIG_MAC80211_MESH
3975         .add_mpath = ieee80211_add_mpath,
3976         .del_mpath = ieee80211_del_mpath,
3977         .change_mpath = ieee80211_change_mpath,
3978         .get_mpath = ieee80211_get_mpath,
3979         .dump_mpath = ieee80211_dump_mpath,
3980         .get_mpp = ieee80211_get_mpp,
3981         .dump_mpp = ieee80211_dump_mpp,
3982         .update_mesh_config = ieee80211_update_mesh_config,
3983         .get_mesh_config = ieee80211_get_mesh_config,
3984         .join_mesh = ieee80211_join_mesh,
3985         .leave_mesh = ieee80211_leave_mesh,
3986 #endif
3987         .join_ocb = ieee80211_join_ocb,
3988         .leave_ocb = ieee80211_leave_ocb,
3989         .change_bss = ieee80211_change_bss,
3990         .set_txq_params = ieee80211_set_txq_params,
3991         .set_monitor_channel = ieee80211_set_monitor_channel,
3992         .suspend = ieee80211_suspend,
3993         .resume = ieee80211_resume,
3994         .scan = ieee80211_scan,
3995         .abort_scan = ieee80211_abort_scan,
3996         .sched_scan_start = ieee80211_sched_scan_start,
3997         .sched_scan_stop = ieee80211_sched_scan_stop,
3998         .auth = ieee80211_auth,
3999         .assoc = ieee80211_assoc,
4000         .deauth = ieee80211_deauth,
4001         .disassoc = ieee80211_disassoc,
4002         .join_ibss = ieee80211_join_ibss,
4003         .leave_ibss = ieee80211_leave_ibss,
4004         .set_mcast_rate = ieee80211_set_mcast_rate,
4005         .set_wiphy_params = ieee80211_set_wiphy_params,
4006         .set_tx_power = ieee80211_set_tx_power,
4007         .get_tx_power = ieee80211_get_tx_power,
4008         .set_wds_peer = ieee80211_set_wds_peer,
4009         .rfkill_poll = ieee80211_rfkill_poll,
4010         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4011         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4012         .set_power_mgmt = ieee80211_set_power_mgmt,
4013         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4014         .remain_on_channel = ieee80211_remain_on_channel,
4015         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4016         .mgmt_tx = ieee80211_mgmt_tx,
4017         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4018         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4019         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4020         .mgmt_frame_register = ieee80211_mgmt_frame_register,
4021         .set_antenna = ieee80211_set_antenna,
4022         .get_antenna = ieee80211_get_antenna,
4023         .set_rekey_data = ieee80211_set_rekey_data,
4024         .tdls_oper = ieee80211_tdls_oper,
4025         .tdls_mgmt = ieee80211_tdls_mgmt,
4026         .tdls_channel_switch = ieee80211_tdls_channel_switch,
4027         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4028         .probe_client = ieee80211_probe_client,
4029         .set_noack_map = ieee80211_set_noack_map,
4030 #ifdef CONFIG_PM
4031         .set_wakeup = ieee80211_set_wakeup,
4032 #endif
4033         .get_channel = ieee80211_cfg_get_channel,
4034         .start_radar_detection = ieee80211_start_radar_detection,
4035         .end_cac = ieee80211_end_cac,
4036         .channel_switch = ieee80211_channel_switch,
4037         .set_qos_map = ieee80211_set_qos_map,
4038         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4039         .add_tx_ts = ieee80211_add_tx_ts,
4040         .del_tx_ts = ieee80211_del_tx_ts,
4041         .start_nan = ieee80211_start_nan,
4042         .stop_nan = ieee80211_stop_nan,
4043         .nan_change_conf = ieee80211_nan_change_conf,
4044         .add_nan_func = ieee80211_add_nan_func,
4045         .del_nan_func = ieee80211_del_nan_func,
4046         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4047         .tx_control_port = ieee80211_tx_control_port,
4048         .get_txq_stats = ieee80211_get_txq_stats,
4049         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4050         .start_pmsr = ieee80211_start_pmsr,
4051         .abort_pmsr = ieee80211_abort_pmsr,
4052         .probe_mesh_link = ieee80211_probe_mesh_link,
4053         .set_tid_config = ieee80211_set_tid_config,
4054         .reset_tid_config = ieee80211_reset_tid_config,
4055 };