net/mac80211/cfg.c

   1 /*
   2  * mac80211 configuration hooks for cfg80211
   3  *
   4  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   5  *
   6  * This file is GPLv2 as found in COPYING.
   7  */
   8
   9 #include <linux/ieee80211.h>
  10 #include <linux/nl80211.h>
  11 #include <linux/rtnetlink.h>
  12 #include <linux/slab.h>
  13 #include <net/net_namespace.h>
  14 #include <linux/rcupdate.h>
  15 #include <linux/if_ether.h>
  16 #include <net/cfg80211.h>
  17 #include "ieee80211_i.h"
  18 #include "driver-ops.h"
  19 #include "cfg.h"
  20 #include "rate.h"
  21 #include "mesh.h"
  22
  23 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
  24                                                 const char *name,
  25                                                 enum nl80211_iftype type,
  26                                                 u32 *flags,
  27                                                 struct vif_params *params)
  28 {
  29         struct ieee80211_local *local = wiphy_priv(wiphy);
  30         struct wireless_dev *wdev;
  31         struct ieee80211_sub_if_data *sdata;
  32         int err;
  33
  34         err = ieee80211_if_add(local, name, &wdev, type, params);
  35         if (err)
  36                 return ERR_PTR(err);
  37
  38         if (type == NL80211_IFTYPE_MONITOR && flags) {
  39                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
  40                 sdata->u.mntr_flags = *flags;
  41         }
  42
  43         return wdev;
  44 }
  45
  46 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
  47 {
  48         ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
  49
  50         return 0;
  51 }
  52
  53 static int ieee80211_change_iface(struct wiphy *wiphy,
  54                                   struct net_device *dev,
  55                                   enum nl80211_iftype type, u32 *flags,
  56                                   struct vif_params *params)
  57 {
  58         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  59         int ret;
  60
  61         ret = ieee80211_if_change_type(sdata, type);
  62         if (ret)
  63                 return ret;
  64
  65         if (type == NL80211_IFTYPE_AP_VLAN &&
  66             params && params->use_4addr == 0)
  67                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
  68         else if (type == NL80211_IFTYPE_STATION &&
  69                  params && params->use_4addr >= 0)
  70                 sdata->u.mgd.use_4addr = params->use_4addr;
  71
  72         if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
  73                 struct ieee80211_local *local = sdata->local;
  74
  75                 if (ieee80211_sdata_running(sdata)) {
  76                         u32 mask = MONITOR_FLAG_COOK_FRAMES |
  77                                    MONITOR_FLAG_ACTIVE;
  78
  79                         /*
  80                          * Prohibit MONITOR_FLAG_COOK_FRAMES and
  81                          * MONITOR_FLAG_ACTIVE to be changed while the
  82                          * interface is up.
  83                          * Else we would need to add a lot of cruft
  84                          * to update everything:
  85                          *      cooked_mntrs, monitor and all fif_* counters
  86                          *      reconfigure hardware
  87                          */
  88                         if ((*flags & mask) != (sdata->u.mntr_flags & mask))
  89                                 return -EBUSY;
  90
  91                         ieee80211_adjust_monitor_flags(sdata, -1);
  92                         sdata->u.mntr_flags = *flags;
  93                         ieee80211_adjust_monitor_flags(sdata, 1);
  94
  95                         ieee80211_configure_filter(local);
  96                 } else {
  97                         /*
  98                          * Because the interface is down, ieee80211_do_stop
  99                          * and ieee80211_do_open take care of "everything"
 100                          * mentioned in the comment above.
 101                          */
 102                         sdata->u.mntr_flags = *flags;
 103                 }
 104         }
 105
 106         return 0;
 107 }
 108
 109 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 110                                       struct wireless_dev *wdev)
 111 {
 112         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 113         int ret;
 114
 115         mutex_lock(&sdata->local->chanctx_mtx);
 116         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 117         mutex_unlock(&sdata->local->chanctx_mtx);
 118         if (ret < 0)
 119                 return ret;
 120
 121         return ieee80211_do_open(wdev, true);
 122 }
 123
 124 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 125                                       struct wireless_dev *wdev)
 126 {
 127         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 128 }
 129
 130 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 131                                   struct net_device *dev,
 132                                   u16 noack_map)
 133 {
 134         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 135
 136         sdata->noack_map = noack_map;
 137         return 0;
 138 }
 139
 140 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 141                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 142                              struct key_params *params)
 143 {
 144         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 145         struct ieee80211_local *local = sdata->local;
 146         struct sta_info *sta = NULL;
 147         const struct ieee80211_cipher_scheme *cs = NULL;
 148         struct ieee80211_key *key;
 149         int err;
 150
 151         if (!ieee80211_sdata_running(sdata))
 152                 return -ENETDOWN;
 153
 154         /* reject WEP and TKIP keys if WEP failed to initialize */
 155         switch (params->cipher) {
 156         case WLAN_CIPHER_SUITE_WEP40:
 157         case WLAN_CIPHER_SUITE_TKIP:
 158         case WLAN_CIPHER_SUITE_WEP104:
 159                 if (IS_ERR(local->wep_tx_tfm))
 160                         return -EINVAL;
 161                 break;
 162         case WLAN_CIPHER_SUITE_CCMP:
 163         case WLAN_CIPHER_SUITE_AES_CMAC:
 164         case WLAN_CIPHER_SUITE_GCMP:
 165                 break;
 166         default:
 167                 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
 168                 break;
 169         }
 170
 171         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 172                                   params->key, params->seq_len, params->seq,
 173                                   cs);
 174         if (IS_ERR(key))
 175                 return PTR_ERR(key);
 176
 177         if (pairwise)
 178                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 179
 180         mutex_lock(&local->sta_mtx);
 181
 182         if (mac_addr) {
 183                 if (ieee80211_vif_is_mesh(&sdata->vif))
 184                         sta = sta_info_get(sdata, mac_addr);
 185                 else
 186                         sta = sta_info_get_bss(sdata, mac_addr);
 187                 /*
 188                  * The ASSOC test makes sure the driver is ready to
 189                  * receive the key. When wpa_supplicant has roamed
 190                  * using FT, it attempts to set the key before
 191                  * association has completed, this rejects that attempt
 192                  * so it will set the key again after assocation.
 193                  *
 194                  * TODO: accept the key if we have a station entry and
 195                  *       add it to the device after the station.
 196                  */
 197                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 198                         ieee80211_key_free_unused(key);
 199                         err = -ENOENT;
 200                         goto out_unlock;
 201                 }
 202         }
 203
 204         switch (sdata->vif.type) {
 205         case NL80211_IFTYPE_STATION:
 206                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 207                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 208                 break;
 209         case NL80211_IFTYPE_AP:
 210         case NL80211_IFTYPE_AP_VLAN:
 211                 /* Keys without a station are used for TX only */
 212                 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
 213                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 214                 break;
 215         case NL80211_IFTYPE_ADHOC:
 216                 /* no MFP (yet) */
 217                 break;
 218         case NL80211_IFTYPE_MESH_POINT:
 219 #ifdef CONFIG_MAC80211_MESH
 220                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 221                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 222                 break;
 223 #endif
 224         case NL80211_IFTYPE_WDS:
 225         case NL80211_IFTYPE_MONITOR:
 226         case NL80211_IFTYPE_P2P_DEVICE:
 227         case NL80211_IFTYPE_UNSPECIFIED:
 228         case NUM_NL80211_IFTYPES:
 229         case NL80211_IFTYPE_P2P_CLIENT:
 230         case NL80211_IFTYPE_P2P_GO:
 231                 /* shouldn't happen */
 232                 WARN_ON_ONCE(1);
 233                 break;
 234         }
 235
 236         if (sta)
 237                 sta->cipher_scheme = cs;
 238
 239         err = ieee80211_key_link(key, sdata, sta);
 240
 241  out_unlock:
 242         mutex_unlock(&local->sta_mtx);
 243
 244         return err;
 245 }
 246
 247 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 248                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 249 {
 250         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 251         struct ieee80211_local *local = sdata->local;
 252         struct sta_info *sta;
 253         struct ieee80211_key *key = NULL;
 254         int ret;
 255
 256         mutex_lock(&local->sta_mtx);
 257         mutex_lock(&local->key_mtx);
 258
 259         if (mac_addr) {
 260                 ret = -ENOENT;
 261
 262                 sta = sta_info_get_bss(sdata, mac_addr);
 263                 if (!sta)
 264                         goto out_unlock;
 265
 266                 if (pairwise)
 267                         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 268                 else
 269                         key = key_mtx_dereference(local, sta->gtk[key_idx]);
 270         } else
 271                 key = key_mtx_dereference(local, sdata->keys[key_idx]);
 272
 273         if (!key) {
 274                 ret = -ENOENT;
 275                 goto out_unlock;
 276         }
 277
 278         ieee80211_key_free(key, true);
 279
 280         ret = 0;
 281  out_unlock:
 282         mutex_unlock(&local->key_mtx);
 283         mutex_unlock(&local->sta_mtx);
 284
 285         return ret;
 286 }
 287
 288 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 289                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 290                              void *cookie,
 291                              void (*callback)(void *cookie,
 292                                               struct key_params *params))
 293 {
 294         struct ieee80211_sub_if_data *sdata;
 295         struct sta_info *sta = NULL;
 296         u8 seq[6] = {0};
 297         struct key_params params;
 298         struct ieee80211_key *key = NULL;
 299         u64 pn64;
 300         u32 iv32;
 301         u16 iv16;
 302         int err = -ENOENT;
 303
 304         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 305
 306         rcu_read_lock();
 307
 308         if (mac_addr) {
 309                 sta = sta_info_get_bss(sdata, mac_addr);
 310                 if (!sta)
 311                         goto out;
 312
 313                 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 314                         key = rcu_dereference(sta->ptk[key_idx]);
 315                 else if (!pairwise &&
 316                          key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
 317                         key = rcu_dereference(sta->gtk[key_idx]);
 318         } else
 319                 key = rcu_dereference(sdata->keys[key_idx]);
 320
 321         if (!key)
 322                 goto out;
 323
 324         memset(&params, 0, sizeof(params));
 325
 326         params.cipher = key->conf.cipher;
 327
 328         switch (key->conf.cipher) {
 329         case WLAN_CIPHER_SUITE_TKIP:
 330                 iv32 = key->u.tkip.tx.iv32;
 331                 iv16 = key->u.tkip.tx.iv16;
 332
 333                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 334                         drv_get_tkip_seq(sdata->local,
 335                                          key->conf.hw_key_idx,
 336                                          &iv32, &iv16);
 337
 338                 seq[0] = iv16 & 0xff;
 339                 seq[1] = (iv16 >> 8) & 0xff;
 340                 seq[2] = iv32 & 0xff;
 341                 seq[3] = (iv32 >> 8) & 0xff;
 342                 seq[4] = (iv32 >> 16) & 0xff;
 343                 seq[5] = (iv32 >> 24) & 0xff;
 344                 params.seq = seq;
 345                 params.seq_len = 6;
 346                 break;
 347         case WLAN_CIPHER_SUITE_CCMP:
 348                 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
 349                 seq[0] = pn64;
 350                 seq[1] = pn64 >> 8;
 351                 seq[2] = pn64 >> 16;
 352                 seq[3] = pn64 >> 24;
 353                 seq[4] = pn64 >> 32;
 354                 seq[5] = pn64 >> 40;
 355                 params.seq = seq;
 356                 params.seq_len = 6;
 357                 break;
 358         case WLAN_CIPHER_SUITE_AES_CMAC:
 359                 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
 360                 seq[0] = pn64;
 361                 seq[1] = pn64 >> 8;
 362                 seq[2] = pn64 >> 16;
 363                 seq[3] = pn64 >> 24;
 364                 seq[4] = pn64 >> 32;
 365                 seq[5] = pn64 >> 40;
 366                 params.seq = seq;
 367                 params.seq_len = 6;
 368                 break;
 369         }
 370
 371         params.key = key->conf.key;
 372         params.key_len = key->conf.keylen;
 373
 374         callback(cookie, &params);
 375         err = 0;
 376
 377  out:
 378         rcu_read_unlock();
 379         return err;
 380 }
 381
 382 static int ieee80211_config_default_key(struct wiphy *wiphy,
 383                                         struct net_device *dev,
 384                                         u8 key_idx, bool uni,
 385                                         bool multi)
 386 {
 387         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 388
 389         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 390
 391         return 0;
 392 }
 393
 394 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 395                                              struct net_device *dev,
 396                                              u8 key_idx)
 397 {
 398         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 399
 400         ieee80211_set_default_mgmt_key(sdata, key_idx);
 401
 402         return 0;
 403 }
 404
 405 void sta_set_rate_info_tx(struct sta_info *sta,
 406                           const struct ieee80211_tx_rate *rate,
 407                           struct rate_info *rinfo)
 408 {
 409         rinfo->flags = 0;
 410         if (rate->flags & IEEE80211_TX_RC_MCS) {
 411                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 412                 rinfo->mcs = rate->idx;
 413         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 414                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 415                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 416                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 417         } else {
 418                 struct ieee80211_supported_band *sband;
 419                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 420                 u16 brate;
 421
 422                 sband = sta->local->hw.wiphy->bands[
 423                                 ieee80211_get_sdata_band(sta->sdata)];
 424                 brate = sband->bitrates[rate->idx].bitrate;
 425                 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 426         }
 427         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 428                 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 429         if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 430                 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 431         if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 432                 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 433         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 434                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 435 }
 436
 437 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
 438 {
 439         rinfo->flags = 0;
 440
 441         if (sta->last_rx_rate_flag & RX_FLAG_HT) {
 442                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 443                 rinfo->mcs = sta->last_rx_rate_idx;
 444         } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
 445                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 446                 rinfo->nss = sta->last_rx_rate_vht_nss;
 447                 rinfo->mcs = sta->last_rx_rate_idx;
 448         } else {
 449                 struct ieee80211_supported_band *sband;
 450                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 451                 u16 brate;
 452
 453                 sband = sta->local->hw.wiphy->bands[
 454                                 ieee80211_get_sdata_band(sta->sdata)];
 455                 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
 456                 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 457         }
 458
 459         if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
 460                 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 461         if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
 462                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 463         if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
 464                 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 465         if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80P80MHZ)
 466                 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
 467         if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
 468                 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 469 }
 470
 471 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 472                                   int idx, u8 *mac, struct station_info *sinfo)
 473 {
 474         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 475         struct ieee80211_local *local = sdata->local;
 476         struct sta_info *sta;
 477         int ret = -ENOENT;
 478
 479         mutex_lock(&local->sta_mtx);
 480
 481         sta = sta_info_get_by_idx(sdata, idx);
 482         if (sta) {
 483                 ret = 0;
 484                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 485                 sta_set_sinfo(sta, sinfo);
 486         }
 487
 488         mutex_unlock(&local->sta_mtx);
 489
 490         return ret;
 491 }
 492
 493 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 494                                  int idx, struct survey_info *survey)
 495 {
 496         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 497
 498         return drv_get_survey(local, idx, survey);
 499 }
 500
 501 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 502                                  const u8 *mac, struct station_info *sinfo)
 503 {
 504         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 505         struct ieee80211_local *local = sdata->local;
 506         struct sta_info *sta;
 507         int ret = -ENOENT;
 508
 509         mutex_lock(&local->sta_mtx);
 510
 511         sta = sta_info_get_bss(sdata, mac);
 512         if (sta) {
 513                 ret = 0;
 514                 sta_set_sinfo(sta, sinfo);
 515         }
 516
 517         mutex_unlock(&local->sta_mtx);
 518
 519         return ret;
 520 }
 521
 522 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 523                                          struct cfg80211_chan_def *chandef)
 524 {
 525         struct ieee80211_local *local = wiphy_priv(wiphy);
 526         struct ieee80211_sub_if_data *sdata;
 527         int ret = 0;
 528
 529         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 530                 return 0;
 531
 532         mutex_lock(&local->mtx);
 533         mutex_lock(&local->iflist_mtx);
 534         if (local->use_chanctx) {
 535                 sdata = rcu_dereference_protected(
 536                                 local->monitor_sdata,
 537                                 lockdep_is_held(&local->iflist_mtx));
 538                 if (sdata) {
 539                         ieee80211_vif_release_channel(sdata);
 540                         ret = ieee80211_vif_use_channel(sdata, chandef,
 541                                         IEEE80211_CHANCTX_EXCLUSIVE);
 542                 }
 543         } else if (local->open_count == local->monitors) {
 544                 local->_oper_chandef = *chandef;
 545                 ieee80211_hw_config(local, 0);
 546         }
 547
 548         if (ret == 0)
 549                 local->monitor_chandef = *chandef;
 550         mutex_unlock(&local->iflist_mtx);
 551         mutex_unlock(&local->mtx);
 552
 553         return ret;
 554 }
 555
 556 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 557                                     const u8 *resp, size_t resp_len,
 558                                     const struct ieee80211_csa_settings *csa)
 559 {
 560         struct probe_resp *new, *old;
 561
 562         if (!resp || !resp_len)
 563                 return 1;
 564
 565         old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 566
 567         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 568         if (!new)
 569                 return -ENOMEM;
 570
 571         new->len = resp_len;
 572         memcpy(new->data, resp, resp_len);
 573
 574         if (csa)
 575                 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
 576                        csa->n_counter_offsets_presp *
 577                        sizeof(new->csa_counter_offsets[0]));
 578
 579         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 580         if (old)
 581                 kfree_rcu(old, rcu_head);
 582
 583         return 0;
 584 }
 585
 586 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 587                                    struct cfg80211_beacon_data *params,
 588                                    const struct ieee80211_csa_settings *csa)
 589 {
 590         struct beacon_data *new, *old;
 591         int new_head_len, new_tail_len;
 592         int size, err;
 593         u32 changed = BSS_CHANGED_BEACON;
 594
 595         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 596
 597
 598         /* Need to have a beacon head if we don't have one yet */
 599         if (!params->head && !old)
 600                 return -EINVAL;
 601
 602         /* new or old head? */
 603         if (params->head)
 604                 new_head_len = params->head_len;
 605         else
 606                 new_head_len = old->head_len;
 607
 608         /* new or old tail? */
 609         if (params->tail || !old)
 610                 /* params->tail_len will be zero for !params->tail */
 611                 new_tail_len = params->tail_len;
 612         else
 613                 new_tail_len = old->tail_len;
 614
 615         size = sizeof(*new) + new_head_len + new_tail_len;
 616
 617         new = kzalloc(size, GFP_KERNEL);
 618         if (!new)
 619                 return -ENOMEM;
 620
 621         /* start filling the new info now */
 622
 623         /*
 624          * pointers go into the block we allocated,
 625          * memory is | beacon_data | head | tail |
 626          */
 627         new->head = ((u8 *) new) + sizeof(*new);
 628         new->tail = new->head + new_head_len;
 629         new->head_len = new_head_len;
 630         new->tail_len = new_tail_len;
 631
 632         if (csa) {
 633                 new->csa_current_counter = csa->count;
 634                 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
 635                        csa->n_counter_offsets_beacon *
 636                        sizeof(new->csa_counter_offsets[0]));
 637         }
 638
 639         /* copy in head */
 640         if (params->head)
 641                 memcpy(new->head, params->head, new_head_len);
 642         else
 643                 memcpy(new->head, old->head, new_head_len);
 644
 645         /* copy in optional tail */
 646         if (params->tail)
 647                 memcpy(new->tail, params->tail, new_tail_len);
 648         else
 649                 if (old)
 650                         memcpy(new->tail, old->tail, new_tail_len);
 651
 652         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
 653                                        params->probe_resp_len, csa);
 654         if (err < 0)
 655                 return err;
 656         if (err == 0)
 657                 changed |= BSS_CHANGED_AP_PROBE_RESP;
 658
 659         rcu_assign_pointer(sdata->u.ap.beacon, new);
 660
 661         if (old)
 662                 kfree_rcu(old, rcu_head);
 663
 664         return changed;
 665 }
 666
 667 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 668                               struct cfg80211_ap_settings *params)
 669 {
 670         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 671         struct ieee80211_local *local = sdata->local;
 672         struct beacon_data *old;
 673         struct ieee80211_sub_if_data *vlan;
 674         u32 changed = BSS_CHANGED_BEACON_INT |
 675                       BSS_CHANGED_BEACON_ENABLED |
 676                       BSS_CHANGED_BEACON |
 677                       BSS_CHANGED_SSID |
 678                       BSS_CHANGED_P2P_PS;
 679         int err;
 680
 681         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 682         if (old)
 683                 return -EALREADY;
 684
 685         /* TODO: make hostapd tell us what it wants */
 686         sdata->smps_mode = IEEE80211_SMPS_OFF;
 687         sdata->needed_rx_chains = sdata->local->rx_chains;
 688
 689         mutex_lock(&local->mtx);
 690         err = ieee80211_vif_use_channel(sdata, &params->chandef,
 691                                         IEEE80211_CHANCTX_SHARED);
 692         if (!err)
 693                 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
 694         mutex_unlock(&local->mtx);
 695         if (err)
 696                 return err;
 697
 698         /*
 699          * Apply control port protocol, this allows us to
 700          * not encrypt dynamic WEP control frames.
 701          */
 702         sdata->control_port_protocol = params->crypto.control_port_ethertype;
 703         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
 704         sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
 705                                                         &params->crypto,
 706                                                         sdata->vif.type);
 707
 708         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
 709                 vlan->control_port_protocol =
 710                         params->crypto.control_port_ethertype;
 711                 vlan->control_port_no_encrypt =
 712                         params->crypto.control_port_no_encrypt;
 713                 vlan->encrypt_headroom =
 714                         ieee80211_cs_headroom(sdata->local,
 715                                               &params->crypto,
 716                                               vlan->vif.type);
 717         }
 718
 719         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
 720         sdata->vif.bss_conf.dtim_period = params->dtim_period;
 721         sdata->vif.bss_conf.enable_beacon = true;
 722
 723         sdata->vif.bss_conf.ssid_len = params->ssid_len;
 724         if (params->ssid_len)
 725                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
 726                        params->ssid_len);
 727         sdata->vif.bss_conf.hidden_ssid =
 728                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
 729
 730         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
 731                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
 732         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
 733                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
 734         if (params->p2p_opp_ps)
 735                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
 736                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
 737
 738         err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
 739         if (err < 0) {
 740                 ieee80211_vif_release_channel(sdata);
 741                 return err;
 742         }
 743         changed |= err;
 744
 745         err = drv_start_ap(sdata->local, sdata);
 746         if (err) {
 747                 old = sdata_dereference(sdata->u.ap.beacon, sdata);
 748
 749                 if (old)
 750                         kfree_rcu(old, rcu_head);
 751                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
 752                 ieee80211_vif_release_channel(sdata);
 753                 return err;
 754         }
 755
 756         ieee80211_recalc_dtim(local, sdata);
 757         ieee80211_bss_info_change_notify(sdata, changed);
 758
 759         netif_carrier_on(dev);
 760         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
 761                 netif_carrier_on(vlan->dev);
 762
 763         return 0;
 764 }
 765
 766 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
 767                                    struct cfg80211_beacon_data *params)
 768 {
 769         struct ieee80211_sub_if_data *sdata;
 770         struct beacon_data *old;
 771         int err;
 772
 773         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 774         sdata_assert_lock(sdata);
 775
 776         /* don't allow changing the beacon while CSA is in place - offset
 777          * of channel switch counter may change
 778          */
 779         if (sdata->vif.csa_active)
 780                 return -EBUSY;
 781
 782         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 783         if (!old)
 784                 return -ENOENT;
 785
 786         err = ieee80211_assign_beacon(sdata, params, NULL);
 787         if (err < 0)
 788                 return err;
 789         ieee80211_bss_info_change_notify(sdata, err);
 790         return 0;
 791 }
 792
 793 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 794 {
 795         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 796         struct ieee80211_sub_if_data *vlan;
 797         struct ieee80211_local *local = sdata->local;
 798         struct beacon_data *old_beacon;
 799         struct probe_resp *old_probe_resp;
 800         struct cfg80211_chan_def chandef;
 801
 802         sdata_assert_lock(sdata);
 803
 804         old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
 805         if (!old_beacon)
 806                 return -ENOENT;
 807         old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 808
 809         /* abort any running channel switch */
 810         mutex_lock(&local->mtx);
 811         sdata->vif.csa_active = false;
 812         if (sdata->csa_block_tx) {
 813                 ieee80211_wake_vif_queues(local, sdata,
 814                                           IEEE80211_QUEUE_STOP_REASON_CSA);
 815                 sdata->csa_block_tx = false;
 816         }
 817
 818         mutex_unlock(&local->mtx);
 819
 820         kfree(sdata->u.ap.next_beacon);
 821         sdata->u.ap.next_beacon = NULL;
 822
 823         /* turn off carrier for this interface and dependent VLANs */
 824         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
 825                 netif_carrier_off(vlan->dev);
 826         netif_carrier_off(dev);
 827
 828         /* remove beacon and probe response */
 829         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
 830         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
 831         kfree_rcu(old_beacon, rcu_head);
 832         if (old_probe_resp)
 833                 kfree_rcu(old_probe_resp, rcu_head);
 834         sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
 835
 836         __sta_info_flush(sdata, true);
 837         ieee80211_free_keys(sdata, true);
 838
 839         sdata->vif.bss_conf.enable_beacon = false;
 840         sdata->vif.bss_conf.ssid_len = 0;
 841         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
 842         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 843
 844         if (sdata->wdev.cac_started) {
 845                 chandef = sdata->vif.bss_conf.chandef;
 846                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
 847                 cfg80211_cac_event(sdata->dev, &chandef,
 848                                    NL80211_RADAR_CAC_ABORTED,
 849                                    GFP_KERNEL);
 850         }
 851
 852         drv_stop_ap(sdata->local, sdata);
 853
 854         /* free all potentially still buffered bcast frames */
 855         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
 856         skb_queue_purge(&sdata->u.ap.ps.bc_buf);
 857
 858         mutex_lock(&local->mtx);
 859         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
 860         ieee80211_vif_release_channel(sdata);
 861         mutex_unlock(&local->mtx);
 862
 863         return 0;
 864 }
 865
 866 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 867 struct iapp_layer2_update {
 868         u8 da[ETH_ALEN];        /* broadcast */
 869         u8 sa[ETH_ALEN];        /* STA addr */
 870         __be16 len;             /* 6 */
 871         u8 dsap;                /* 0 */
 872         u8 ssap;                /* 0 */
 873         u8 control;
 874         u8 xid_info[3];
 875 } __packed;
 876
 877 static void ieee80211_send_layer2_update(struct sta_info *sta)
 878 {
 879         struct iapp_layer2_update *msg;
 880         struct sk_buff *skb;
 881
 882         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 883          * bridge devices */
 884
 885         skb = dev_alloc_skb(sizeof(*msg));
 886         if (!skb)
 887                 return;
 888         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 889
 890         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 891          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 892
 893         eth_broadcast_addr(msg->da);
 894         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 895         msg->len = htons(6);
 896         msg->dsap = 0;
 897         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 898         msg->control = 0xaf;    /* XID response lsb.1111F101.
 899                                  * F=0 (no poll command; unsolicited frame) */
 900         msg->xid_info[0] = 0x81;        /* XID format identifier */
 901         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 902         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 903
 904         skb->dev = sta->sdata->dev;
 905         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 906         memset(skb->cb, 0, sizeof(skb->cb));
 907         netif_rx_ni(skb);
 908 }
 909
 910 static int sta_apply_auth_flags(struct ieee80211_local *local,
 911                                 struct sta_info *sta,
 912                                 u32 mask, u32 set)
 913 {
 914         int ret;
 915
 916         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
 917             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
 918             !test_sta_flag(sta, WLAN_STA_AUTH)) {
 919                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
 920                 if (ret)
 921                         return ret;
 922         }
 923
 924         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
 925             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
 926             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 927                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
 928                 if (ret)
 929                         return ret;
 930         }
 931
 932         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 933                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 934                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
 935                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
 936                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
 937                 else
 938                         ret = 0;
 939                 if (ret)
 940                         return ret;
 941         }
 942
 943         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
 944             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
 945             test_sta_flag(sta, WLAN_STA_ASSOC)) {
 946                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
 947                 if (ret)
 948                         return ret;
 949         }
 950
 951         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
 952             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
 953             test_sta_flag(sta, WLAN_STA_AUTH)) {
 954                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
 955                 if (ret)
 956                         return ret;
 957         }
 958
 959         return 0;
 960 }
 961
 962 static int sta_apply_parameters(struct ieee80211_local *local,
 963                                 struct sta_info *sta,
 964                                 struct station_parameters *params)
 965 {
 966         int ret = 0;
 967         struct ieee80211_supported_band *sband;
 968         struct ieee80211_sub_if_data *sdata = sta->sdata;
 969         enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 970         u32 mask, set;
 971
 972         sband = local->hw.wiphy->bands[band];
 973
 974         mask = params->sta_flags_mask;
 975         set = params->sta_flags_set;
 976
 977         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 978                 /*
 979                  * In mesh mode, ASSOCIATED isn't part of the nl80211
 980                  * API but must follow AUTHENTICATED for driver state.
 981                  */
 982                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
 983                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
 984                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
 985                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
 986         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
 987                 /*
 988                  * TDLS -- everything follows authorized, but
 989                  * only becoming authorized is possible, not
 990                  * going back
 991                  */
 992                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 993                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
 994                                BIT(NL80211_STA_FLAG_ASSOCIATED);
 995                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
 996                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
 997                 }
 998         }
 999
1000         /* auth flags will be set later for TDLS stations */
1001         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1002                 ret = sta_apply_auth_flags(local, sta, mask, set);
1003                 if (ret)
1004                         return ret;
1005         }
1006
1007         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1008                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1009                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1010                 else
1011                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1012         }
1013
1014         if (mask & BIT(NL80211_STA_FLAG_WME))
1015                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1016
1017         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1018                 if (set & BIT(NL80211_STA_FLAG_MFP))
1019                         set_sta_flag(sta, WLAN_STA_MFP);
1020                 else
1021                         clear_sta_flag(sta, WLAN_STA_MFP);
1022         }
1023
1024         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1025                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1026                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1027                 else
1028                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1029         }
1030
1031         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1032                 sta->sta.uapsd_queues = params->uapsd_queues;
1033                 sta->sta.max_sp = params->max_sp;
1034         }
1035
1036         /*
1037          * cfg80211 validates this (1-2007) and allows setting the AID
1038          * only when creating a new station entry
1039          */
1040         if (params->aid)
1041                 sta->sta.aid = params->aid;
1042
1043         /*
1044          * Some of the following updates would be racy if called on an
1045          * existing station, via ieee80211_change_station(). However,
1046          * all such changes are rejected by cfg80211 except for updates
1047          * changing the supported rates on an existing but not yet used
1048          * TDLS peer.
1049          */
1050
1051         if (params->listen_interval >= 0)
1052                 sta->listen_interval = params->listen_interval;
1053
1054         if (params->supported_rates) {
1055                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1056                                          sband, params->supported_rates,
1057                                          params->supported_rates_len,
1058                                          &sta->sta.supp_rates[band]);
1059         }
1060
1061         if (params->ht_capa)
1062                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1063                                                   params->ht_capa, sta);
1064
1065         if (params->vht_capa)
1066                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1067                                                     params->vht_capa, sta);
1068
1069         if (params->opmode_notif_used) {
1070                 /* returned value is only needed for rc update, but the
1071                  * rc isn't initialized here yet, so ignore it
1072                  */
1073                 __ieee80211_vht_handle_opmode(sdata, sta,
1074                                               params->opmode_notif,
1075                                               band, false);
1076         }
1077
1078         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1079 #ifdef CONFIG_MAC80211_MESH
1080                 u32 changed = 0;
1081
1082                 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1083                         switch (params->plink_state) {
1084                         case NL80211_PLINK_ESTAB:
1085                                 if (sta->plink_state != NL80211_PLINK_ESTAB)
1086                                         changed = mesh_plink_inc_estab_count(
1087                                                         sdata);
1088                                 sta->plink_state = params->plink_state;
1089
1090                                 ieee80211_mps_sta_status_update(sta);
1091                                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1092                                               sdata->u.mesh.mshcfg.power_mode);
1093                                 break;
1094                         case NL80211_PLINK_LISTEN:
1095                         case NL80211_PLINK_BLOCKED:
1096                         case NL80211_PLINK_OPN_SNT:
1097                         case NL80211_PLINK_OPN_RCVD:
1098                         case NL80211_PLINK_CNF_RCVD:
1099                         case NL80211_PLINK_HOLDING:
1100                                 if (sta->plink_state == NL80211_PLINK_ESTAB)
1101                                         changed = mesh_plink_dec_estab_count(
1102                                                         sdata);
1103                                 sta->plink_state = params->plink_state;
1104
1105                                 ieee80211_mps_sta_status_update(sta);
1106                                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1107                                                 NL80211_MESH_POWER_UNKNOWN);
1108                                 break;
1109                         default:
1110                                 /*  nothing  */
1111                                 break;
1112                         }
1113                 }
1114
1115                 switch (params->plink_action) {
1116                 case NL80211_PLINK_ACTION_NO_ACTION:
1117                         /* nothing */
1118                         break;
1119                 case NL80211_PLINK_ACTION_OPEN:
1120                         changed |= mesh_plink_open(sta);
1121                         break;
1122                 case NL80211_PLINK_ACTION_BLOCK:
1123                         changed |= mesh_plink_block(sta);
1124                         break;
1125                 }
1126
1127                 if (params->local_pm)
1128                         changed |=
1129                               ieee80211_mps_set_sta_local_pm(sta,
1130                                                              params->local_pm);
1131                 ieee80211_mbss_info_change_notify(sdata, changed);
1132 #endif
1133         }
1134
1135         /* set the STA state after all sta info from usermode has been set */
1136         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1137                 ret = sta_apply_auth_flags(local, sta, mask, set);
1138                 if (ret)
1139                         return ret;
1140         }
1141
1142         return 0;
1143 }
1144
1145 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1146                                  const u8 *mac,
1147                                  struct station_parameters *params)
1148 {
1149         struct ieee80211_local *local = wiphy_priv(wiphy);
1150         struct sta_info *sta;
1151         struct ieee80211_sub_if_data *sdata;
1152         int err;
1153         int layer2_update;
1154
1155         if (params->vlan) {
1156                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1157
1158                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1159                     sdata->vif.type != NL80211_IFTYPE_AP)
1160                         return -EINVAL;
1161         } else
1162                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1163
1164         if (ether_addr_equal(mac, sdata->vif.addr))
1165                 return -EINVAL;
1166
1167         if (is_multicast_ether_addr(mac))
1168                 return -EINVAL;
1169
1170         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1171         if (!sta)
1172                 return -ENOMEM;
1173
1174         /*
1175          * defaults -- if userspace wants something else we'll
1176          * change it accordingly in sta_apply_parameters()
1177          */
1178         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1179                 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1180                 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1181         } else {
1182                 sta->sta.tdls = true;
1183         }
1184
1185         err = sta_apply_parameters(local, sta, params);
1186         if (err) {
1187                 sta_info_free(local, sta);
1188                 return err;
1189         }
1190
1191         /*
1192          * for TDLS, rate control should be initialized only when
1193          * rates are known and station is marked authorized
1194          */
1195         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1196                 rate_control_rate_init(sta);
1197
1198         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1199                 sdata->vif.type == NL80211_IFTYPE_AP;
1200
1201         err = sta_info_insert_rcu(sta);
1202         if (err) {
1203                 rcu_read_unlock();
1204                 return err;
1205         }
1206
1207         if (layer2_update)
1208                 ieee80211_send_layer2_update(sta);
1209
1210         rcu_read_unlock();
1211
1212         return 0;
1213 }
1214
1215 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1216                                  const u8 *mac)
1217 {
1218         struct ieee80211_sub_if_data *sdata;
1219
1220         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1221
1222         if (mac)
1223                 return sta_info_destroy_addr_bss(sdata, mac);
1224
1225         sta_info_flush(sdata);
1226         return 0;
1227 }
1228
1229 static int ieee80211_change_station(struct wiphy *wiphy,
1230                                     struct net_device *dev, const u8 *mac,
1231                                     struct station_parameters *params)
1232 {
1233         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1234         struct ieee80211_local *local = wiphy_priv(wiphy);
1235         struct sta_info *sta;
1236         struct ieee80211_sub_if_data *vlansdata;
1237         enum cfg80211_station_type statype;
1238         int err;
1239
1240         mutex_lock(&local->sta_mtx);
1241
1242         sta = sta_info_get_bss(sdata, mac);
1243         if (!sta) {
1244                 err = -ENOENT;
1245                 goto out_err;
1246         }
1247
1248         switch (sdata->vif.type) {
1249         case NL80211_IFTYPE_MESH_POINT:
1250                 if (sdata->u.mesh.user_mpm)
1251                         statype = CFG80211_STA_MESH_PEER_USER;
1252                 else
1253                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1254                 break;
1255         case NL80211_IFTYPE_ADHOC:
1256                 statype = CFG80211_STA_IBSS;
1257                 break;
1258         case NL80211_IFTYPE_STATION:
1259                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1260                         statype = CFG80211_STA_AP_STA;
1261                         break;
1262                 }
1263                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1264                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1265                 else
1266                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1267                 break;
1268         case NL80211_IFTYPE_AP:
1269         case NL80211_IFTYPE_AP_VLAN:
1270                 statype = CFG80211_STA_AP_CLIENT;
1271                 break;
1272         default:
1273                 err = -EOPNOTSUPP;
1274                 goto out_err;
1275         }
1276
1277         err = cfg80211_check_station_change(wiphy, params, statype);
1278         if (err)
1279                 goto out_err;
1280
1281         if (params->vlan && params->vlan != sta->sdata->dev) {
1282                 bool prev_4addr = false;
1283                 bool new_4addr = false;
1284
1285                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1286
1287                 if (params->vlan->ieee80211_ptr->use_4addr) {
1288                         if (vlansdata->u.vlan.sta) {
1289                                 err = -EBUSY;
1290                                 goto out_err;
1291                         }
1292
1293                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1294                         new_4addr = true;
1295                 }
1296
1297                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1298                     sta->sdata->u.vlan.sta) {
1299                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1300                         prev_4addr = true;
1301                 }
1302
1303                 sta->sdata = vlansdata;
1304
1305                 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1306                     prev_4addr != new_4addr) {
1307                         if (new_4addr)
1308                                 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1309                         else
1310                                 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1311                 }
1312
1313                 ieee80211_send_layer2_update(sta);
1314         }
1315
1316         err = sta_apply_parameters(local, sta, params);
1317         if (err)
1318                 goto out_err;
1319
1320         /* When peer becomes authorized, init rate control as well */
1321         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1322             test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1323                 rate_control_rate_init(sta);
1324
1325         mutex_unlock(&local->sta_mtx);
1326
1327         if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1328              sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1329             sta->known_smps_mode != sta->sdata->bss->req_smps &&
1330             test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1331             sta_info_tx_streams(sta) != 1) {
1332                 ht_dbg(sta->sdata,
1333                        "%pM just authorized and MIMO capable - update SMPS\n",
1334                        sta->sta.addr);
1335                 ieee80211_send_smps_action(sta->sdata,
1336                         sta->sdata->bss->req_smps,
1337                         sta->sta.addr,
1338                         sta->sdata->vif.bss_conf.bssid);
1339         }
1340
1341         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1342             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1343                 ieee80211_recalc_ps(local, -1);
1344                 ieee80211_recalc_ps_vif(sdata);
1345         }
1346
1347         return 0;
1348 out_err:
1349         mutex_unlock(&local->sta_mtx);
1350         return err;
1351 }
1352
1353 #ifdef CONFIG_MAC80211_MESH
1354 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1355                                const u8 *dst, const u8 *next_hop)
1356 {
1357         struct ieee80211_sub_if_data *sdata;
1358         struct mesh_path *mpath;
1359         struct sta_info *sta;
1360
1361         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1362
1363         rcu_read_lock();
1364         sta = sta_info_get(sdata, next_hop);
1365         if (!sta) {
1366                 rcu_read_unlock();
1367                 return -ENOENT;
1368         }
1369
1370         mpath = mesh_path_add(sdata, dst);
1371         if (IS_ERR(mpath)) {
1372                 rcu_read_unlock();
1373                 return PTR_ERR(mpath);
1374         }
1375
1376         mesh_path_fix_nexthop(mpath, sta);
1377
1378         rcu_read_unlock();
1379         return 0;
1380 }
1381
1382 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1383                                const u8 *dst)
1384 {
1385         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1386
1387         if (dst)
1388                 return mesh_path_del(sdata, dst);
1389
1390         mesh_path_flush_by_iface(sdata);
1391         return 0;
1392 }
1393
1394 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1395                                   const u8 *dst, const u8 *next_hop)
1396 {
1397         struct ieee80211_sub_if_data *sdata;
1398         struct mesh_path *mpath;
1399         struct sta_info *sta;
1400
1401         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1402
1403         rcu_read_lock();
1404
1405         sta = sta_info_get(sdata, next_hop);
1406         if (!sta) {
1407                 rcu_read_unlock();
1408                 return -ENOENT;
1409         }
1410
1411         mpath = mesh_path_lookup(sdata, dst);
1412         if (!mpath) {
1413                 rcu_read_unlock();
1414                 return -ENOENT;
1415         }
1416
1417         mesh_path_fix_nexthop(mpath, sta);
1418
1419         rcu_read_unlock();
1420         return 0;
1421 }
1422
1423 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1424                             struct mpath_info *pinfo)
1425 {
1426         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1427
1428         if (next_hop_sta)
1429                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1430         else
1431                 memset(next_hop, 0, ETH_ALEN);
1432
1433         memset(pinfo, 0, sizeof(*pinfo));
1434
1435         pinfo->generation = mesh_paths_generation;
1436
1437         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1438                         MPATH_INFO_SN |
1439                         MPATH_INFO_METRIC |
1440                         MPATH_INFO_EXPTIME |
1441                         MPATH_INFO_DISCOVERY_TIMEOUT |
1442                         MPATH_INFO_DISCOVERY_RETRIES |
1443                         MPATH_INFO_FLAGS;
1444
1445         pinfo->frame_qlen = mpath->frame_queue.qlen;
1446         pinfo->sn = mpath->sn;
1447         pinfo->metric = mpath->metric;
1448         if (time_before(jiffies, mpath->exp_time))
1449                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1450         pinfo->discovery_timeout =
1451                         jiffies_to_msecs(mpath->discovery_timeout);
1452         pinfo->discovery_retries = mpath->discovery_retries;
1453         if (mpath->flags & MESH_PATH_ACTIVE)
1454                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1455         if (mpath->flags & MESH_PATH_RESOLVING)
1456                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1457         if (mpath->flags & MESH_PATH_SN_VALID)
1458                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1459         if (mpath->flags & MESH_PATH_FIXED)
1460                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1461         if (mpath->flags & MESH_PATH_RESOLVED)
1462                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1463 }
1464
1465 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1466                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1467
1468 {
1469         struct ieee80211_sub_if_data *sdata;
1470         struct mesh_path *mpath;
1471
1472         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1473
1474         rcu_read_lock();
1475         mpath = mesh_path_lookup(sdata, dst);
1476         if (!mpath) {
1477                 rcu_read_unlock();
1478                 return -ENOENT;
1479         }
1480         memcpy(dst, mpath->dst, ETH_ALEN);
1481         mpath_set_pinfo(mpath, next_hop, pinfo);
1482         rcu_read_unlock();
1483         return 0;
1484 }
1485
1486 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1487                                 int idx, u8 *dst, u8 *next_hop,
1488                                 struct mpath_info *pinfo)
1489 {
1490         struct ieee80211_sub_if_data *sdata;
1491         struct mesh_path *mpath;
1492
1493         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1494
1495         rcu_read_lock();
1496         mpath = mesh_path_lookup_by_idx(sdata, idx);
1497         if (!mpath) {
1498                 rcu_read_unlock();
1499                 return -ENOENT;
1500         }
1501         memcpy(dst, mpath->dst, ETH_ALEN);
1502         mpath_set_pinfo(mpath, next_hop, pinfo);
1503         rcu_read_unlock();
1504         return 0;
1505 }
1506
1507 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1508                                 struct net_device *dev,
1509                                 struct mesh_config *conf)
1510 {
1511         struct ieee80211_sub_if_data *sdata;
1512         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1513
1514         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1515         return 0;
1516 }
1517
1518 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1519 {
1520         return (mask >> (parm-1)) & 0x1;
1521 }
1522
1523 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1524                 const struct mesh_setup *setup)
1525 {
1526         u8 *new_ie;
1527         const u8 *old_ie;
1528         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1529                                         struct ieee80211_sub_if_data, u.mesh);
1530
1531         /* allocate information elements */
1532         new_ie = NULL;
1533         old_ie = ifmsh->ie;
1534
1535         if (setup->ie_len) {
1536                 new_ie = kmemdup(setup->ie, setup->ie_len,
1537                                 GFP_KERNEL);
1538                 if (!new_ie)
1539                         return -ENOMEM;
1540         }
1541         ifmsh->ie_len = setup->ie_len;
1542         ifmsh->ie = new_ie;
1543         kfree(old_ie);
1544
1545         /* now copy the rest of the setup parameters */
1546         ifmsh->mesh_id_len = setup->mesh_id_len;
1547         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1548         ifmsh->mesh_sp_id = setup->sync_method;
1549         ifmsh->mesh_pp_id = setup->path_sel_proto;
1550         ifmsh->mesh_pm_id = setup->path_metric;
1551         ifmsh->user_mpm = setup->user_mpm;
1552         ifmsh->mesh_auth_id = setup->auth_id;
1553         ifmsh->security = IEEE80211_MESH_SEC_NONE;
1554         if (setup->is_authenticated)
1555                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1556         if (setup->is_secure)
1557                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1558
1559         /* mcast rate setting in Mesh Node */
1560         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1561                                                 sizeof(setup->mcast_rate));
1562         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1563
1564         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1565         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1566
1567         return 0;
1568 }
1569
1570 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1571                                         struct net_device *dev, u32 mask,
1572                                         const struct mesh_config *nconf)
1573 {
1574         struct mesh_config *conf;
1575         struct ieee80211_sub_if_data *sdata;
1576         struct ieee80211_if_mesh *ifmsh;
1577
1578         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1579         ifmsh = &sdata->u.mesh;
1580
1581         /* Set the config options which we are interested in setting */
1582         conf = &(sdata->u.mesh.mshcfg);
1583         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1584                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1585         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1586                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1587         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1588                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1589         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1590                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1591         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1592                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1593         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1594                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1595         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1596                 conf->element_ttl = nconf->element_ttl;
1597         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1598                 if (ifmsh->user_mpm)
1599                         return -EBUSY;
1600                 conf->auto_open_plinks = nconf->auto_open_plinks;
1601         }
1602         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1603                 conf->dot11MeshNbrOffsetMaxNeighbor =
1604                         nconf->dot11MeshNbrOffsetMaxNeighbor;
1605         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1606                 conf->dot11MeshHWMPmaxPREQretries =
1607                         nconf->dot11MeshHWMPmaxPREQretries;
1608         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1609                 conf->path_refresh_time = nconf->path_refresh_time;
1610         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1611                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1612         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1613                 conf->dot11MeshHWMPactivePathTimeout =
1614                         nconf->dot11MeshHWMPactivePathTimeout;
1615         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1616                 conf->dot11MeshHWMPpreqMinInterval =
1617                         nconf->dot11MeshHWMPpreqMinInterval;
1618         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1619                 conf->dot11MeshHWMPperrMinInterval =
1620                         nconf->dot11MeshHWMPperrMinInterval;
1621         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1622                            mask))
1623                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1624                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1625         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1626                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1627                 ieee80211_mesh_root_setup(ifmsh);
1628         }
1629         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1630                 /* our current gate announcement implementation rides on root
1631                  * announcements, so require this ifmsh to also be a root node
1632                  * */
1633                 if (nconf->dot11MeshGateAnnouncementProtocol &&
1634                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1635                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1636                         ieee80211_mesh_root_setup(ifmsh);
1637                 }
1638                 conf->dot11MeshGateAnnouncementProtocol =
1639                         nconf->dot11MeshGateAnnouncementProtocol;
1640         }
1641         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1642                 conf->dot11MeshHWMPRannInterval =
1643                         nconf->dot11MeshHWMPRannInterval;
1644         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1645                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1646         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1647                 /* our RSSI threshold implementation is supported only for
1648                  * devices that report signal in dBm.
1649                  */
1650                 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1651                         return -ENOTSUPP;
1652                 conf->rssi_threshold = nconf->rssi_threshold;
1653         }
1654         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1655                 conf->ht_opmode = nconf->ht_opmode;
1656                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1657                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1658         }
1659         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1660                 conf->dot11MeshHWMPactivePathToRootTimeout =
1661                         nconf->dot11MeshHWMPactivePathToRootTimeout;
1662         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1663                 conf->dot11MeshHWMProotInterval =
1664                         nconf->dot11MeshHWMProotInterval;
1665         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1666                 conf->dot11MeshHWMPconfirmationInterval =
1667                         nconf->dot11MeshHWMPconfirmationInterval;
1668         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1669                 conf->power_mode = nconf->power_mode;
1670                 ieee80211_mps_local_status_update(sdata);
1671         }
1672         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1673                 conf->dot11MeshAwakeWindowDuration =
1674                         nconf->dot11MeshAwakeWindowDuration;
1675         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1676                 conf->plink_timeout = nconf->plink_timeout;
1677         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1678         return 0;
1679 }
1680
1681 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1682                                const struct mesh_config *conf,
1683                                const struct mesh_setup *setup)
1684 {
1685         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1686         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1687         int err;
1688
1689         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1690         err = copy_mesh_setup(ifmsh, setup);
1691         if (err)
1692                 return err;
1693
1694         /* can mesh use other SMPS modes? */
1695         sdata->smps_mode = IEEE80211_SMPS_OFF;
1696         sdata->needed_rx_chains = sdata->local->rx_chains;
1697
1698         mutex_lock(&sdata->local->mtx);
1699         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1700                                         IEEE80211_CHANCTX_SHARED);
1701         mutex_unlock(&sdata->local->mtx);
1702         if (err)
1703                 return err;
1704
1705         return ieee80211_start_mesh(sdata);
1706 }
1707
1708 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1709 {
1710         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1711
1712         ieee80211_stop_mesh(sdata);
1713         mutex_lock(&sdata->local->mtx);
1714         ieee80211_vif_release_channel(sdata);
1715         mutex_unlock(&sdata->local->mtx);
1716
1717         return 0;
1718 }
1719 #endif
1720
1721 static int ieee80211_change_bss(struct wiphy *wiphy,
1722                                 struct net_device *dev,
1723                                 struct bss_parameters *params)
1724 {
1725         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1726         enum ieee80211_band band;
1727         u32 changed = 0;
1728
1729         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1730                 return -ENOENT;
1731
1732         band = ieee80211_get_sdata_band(sdata);
1733
1734         if (params->use_cts_prot >= 0) {
1735                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1736                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1737         }
1738         if (params->use_short_preamble >= 0) {
1739                 sdata->vif.bss_conf.use_short_preamble =
1740                         params->use_short_preamble;
1741                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1742         }
1743
1744         if (!sdata->vif.bss_conf.use_short_slot &&
1745             band == IEEE80211_BAND_5GHZ) {
1746                 sdata->vif.bss_conf.use_short_slot = true;
1747                 changed |= BSS_CHANGED_ERP_SLOT;
1748         }
1749
1750         if (params->use_short_slot_time >= 0) {
1751                 sdata->vif.bss_conf.use_short_slot =
1752                         params->use_short_slot_time;
1753                 changed |= BSS_CHANGED_ERP_SLOT;
1754         }
1755
1756         if (params->basic_rates) {
1757                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1758                                          wiphy->bands[band],
1759                                          params->basic_rates,
1760                                          params->basic_rates_len,
1761                                          &sdata->vif.bss_conf.basic_rates);
1762                 changed |= BSS_CHANGED_BASIC_RATES;
1763         }
1764
1765         if (params->ap_isolate >= 0) {
1766                 if (params->ap_isolate)
1767                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1768                 else
1769                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1770         }
1771
1772         if (params->ht_opmode >= 0) {
1773                 sdata->vif.bss_conf.ht_operation_mode =
1774                         (u16) params->ht_opmode;
1775                 changed |= BSS_CHANGED_HT;
1776         }
1777
1778         if (params->p2p_ctwindow >= 0) {
1779                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1780                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1781                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1782                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1783                 changed |= BSS_CHANGED_P2P_PS;
1784         }
1785
1786         if (params->p2p_opp_ps > 0) {
1787                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1788                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1789                 changed |= BSS_CHANGED_P2P_PS;
1790         } else if (params->p2p_opp_ps == 0) {
1791                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1792                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
1793                 changed |= BSS_CHANGED_P2P_PS;
1794         }
1795
1796         ieee80211_bss_info_change_notify(sdata, changed);
1797
1798         return 0;
1799 }
1800
1801 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1802                                     struct net_device *dev,
1803                                     struct ieee80211_txq_params *params)
1804 {
1805         struct ieee80211_local *local = wiphy_priv(wiphy);
1806         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1807         struct ieee80211_tx_queue_params p;
1808
1809         if (!local->ops->conf_tx)
1810                 return -EOPNOTSUPP;
1811
1812         if (local->hw.queues < IEEE80211_NUM_ACS)
1813                 return -EOPNOTSUPP;
1814
1815         memset(&p, 0, sizeof(p));
1816         p.aifs = params->aifs;
1817         p.cw_max = params->cwmax;
1818         p.cw_min = params->cwmin;
1819         p.txop = params->txop;
1820
1821         /*
1822          * Setting tx queue params disables u-apsd because it's only
1823          * called in master mode.
1824          */
1825         p.uapsd = false;
1826
1827         sdata->tx_conf[params->ac] = p;
1828         if (drv_conf_tx(local, sdata, params->ac, &p)) {
1829                 wiphy_debug(local->hw.wiphy,
1830                             "failed to set TX queue parameters for AC %d\n",
1831                             params->ac);
1832                 return -EINVAL;
1833         }
1834
1835         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1836
1837         return 0;
1838 }
1839
1840 #ifdef CONFIG_PM
1841 static int ieee80211_suspend(struct wiphy *wiphy,
1842                              struct cfg80211_wowlan *wowlan)
1843 {
1844         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1845 }
1846
1847 static int ieee80211_resume(struct wiphy *wiphy)
1848 {
1849         return __ieee80211_resume(wiphy_priv(wiphy));
1850 }
1851 #else
1852 #define ieee80211_suspend NULL
1853 #define ieee80211_resume NULL
1854 #endif
1855
1856 static int ieee80211_scan(struct wiphy *wiphy,
1857                           struct cfg80211_scan_request *req)
1858 {
1859         struct ieee80211_sub_if_data *sdata;
1860
1861         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
1862
1863         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1864         case NL80211_IFTYPE_STATION:
1865         case NL80211_IFTYPE_ADHOC:
1866         case NL80211_IFTYPE_MESH_POINT:
1867         case NL80211_IFTYPE_P2P_CLIENT:
1868         case NL80211_IFTYPE_P2P_DEVICE:
1869                 break;
1870         case NL80211_IFTYPE_P2P_GO:
1871                 if (sdata->local->ops->hw_scan)
1872                         break;
1873                 /*
1874                  * FIXME: implement NoA while scanning in software,
1875                  * for now fall through to allow scanning only when
1876                  * beaconing hasn't been configured yet
1877                  */
1878         case NL80211_IFTYPE_AP:
1879                 /*
1880                  * If the scan has been forced (and the driver supports
1881                  * forcing), don't care about being beaconing already.
1882                  * This will create problems to the attached stations (e.g. all
1883                  * the  frames sent while scanning on other channel will be
1884                  * lost)
1885                  */
1886                 if (sdata->u.ap.beacon &&
1887                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1888                      !(req->flags & NL80211_SCAN_FLAG_AP)))
1889                         return -EOPNOTSUPP;
1890                 break;
1891         default:
1892                 return -EOPNOTSUPP;
1893         }
1894
1895         return ieee80211_request_scan(sdata, req);
1896 }
1897
1898 static int
1899 ieee80211_sched_scan_start(struct wiphy *wiphy,
1900                            struct net_device *dev,
1901                            struct cfg80211_sched_scan_request *req)
1902 {
1903         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1904
1905         if (!sdata->local->ops->sched_scan_start)
1906                 return -EOPNOTSUPP;
1907
1908         return ieee80211_request_sched_scan_start(sdata, req);
1909 }
1910
1911 static int
1912 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1913 {
1914         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1915
1916         if (!sdata->local->ops->sched_scan_stop)
1917                 return -EOPNOTSUPP;
1918
1919         return ieee80211_request_sched_scan_stop(sdata);
1920 }
1921
1922 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1923                           struct cfg80211_auth_request *req)
1924 {
1925         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1926 }
1927
1928 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1929                            struct cfg80211_assoc_request *req)
1930 {
1931         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1932 }
1933
1934 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1935                             struct cfg80211_deauth_request *req)
1936 {
1937         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1938 }
1939
1940 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1941                               struct cfg80211_disassoc_request *req)
1942 {
1943         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1944 }
1945
1946 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1947                                struct cfg80211_ibss_params *params)
1948 {
1949         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
1950 }
1951
1952 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1953 {
1954         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
1955 }
1956
1957 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
1958                                     int rate[IEEE80211_NUM_BANDS])
1959 {
1960         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1961
1962         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
1963                sizeof(int) * IEEE80211_NUM_BANDS);
1964
1965         return 0;
1966 }
1967
1968 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1969 {
1970         struct ieee80211_local *local = wiphy_priv(wiphy);
1971         int err;
1972
1973         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1974                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1975
1976                 if (err)
1977                         return err;
1978         }
1979
1980         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1981                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1982
1983                 if (err)
1984                         return err;
1985         }
1986
1987         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1988                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1989
1990                 if (err)
1991                         return err;
1992         }
1993
1994         if (changed & WIPHY_PARAM_RETRY_SHORT) {
1995                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
1996                         return -EINVAL;
1997                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1998         }
1999         if (changed & WIPHY_PARAM_RETRY_LONG) {
2000                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2001                         return -EINVAL;
2002                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2003         }
2004         if (changed &
2005             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2006                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2007
2008         return 0;
2009 }
2010
2011 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2012                                   struct wireless_dev *wdev,
2013                                   enum nl80211_tx_power_setting type, int mbm)
2014 {
2015         struct ieee80211_local *local = wiphy_priv(wiphy);
2016         struct ieee80211_sub_if_data *sdata;
2017
2018         if (wdev) {
2019                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2020
2021                 switch (type) {
2022                 case NL80211_TX_POWER_AUTOMATIC:
2023                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2024                         break;
2025                 case NL80211_TX_POWER_LIMITED:
2026                 case NL80211_TX_POWER_FIXED:
2027                         if (mbm < 0 || (mbm % 100))
2028                                 return -EOPNOTSUPP;
2029                         sdata->user_power_level = MBM_TO_DBM(mbm);
2030                         break;
2031                 }
2032
2033                 ieee80211_recalc_txpower(sdata);
2034
2035                 return 0;
2036         }
2037
2038         switch (type) {
2039         case NL80211_TX_POWER_AUTOMATIC:
2040                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2041                 break;
2042         case NL80211_TX_POWER_LIMITED:
2043         case NL80211_TX_POWER_FIXED:
2044                 if (mbm < 0 || (mbm % 100))
2045                         return -EOPNOTSUPP;
2046                 local->user_power_level = MBM_TO_DBM(mbm);
2047                 break;
2048         }
2049
2050         mutex_lock(&local->iflist_mtx);
2051         list_for_each_entry(sdata, &local->interfaces, list)
2052                 sdata->user_power_level = local->user_power_level;
2053         list_for_each_entry(sdata, &local->interfaces, list)
2054                 ieee80211_recalc_txpower(sdata);
2055         mutex_unlock(&local->iflist_mtx);
2056
2057         return 0;
2058 }
2059
2060 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2061                                   struct wireless_dev *wdev,
2062                                   int *dbm)
2063 {
2064         struct ieee80211_local *local = wiphy_priv(wiphy);
2065         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2066
2067         if (!local->use_chanctx)
2068                 *dbm = local->hw.conf.power_level;
2069         else
2070                 *dbm = sdata->vif.bss_conf.txpower;
2071
2072         return 0;
2073 }
2074
2075 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2076                                   const u8 *addr)
2077 {
2078         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2079
2080         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2081
2082         return 0;
2083 }
2084
2085 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2086 {
2087         struct ieee80211_local *local = wiphy_priv(wiphy);
2088
2089         drv_rfkill_poll(local);
2090 }
2091
2092 #ifdef CONFIG_NL80211_TESTMODE
2093 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2094                                   struct wireless_dev *wdev,
2095                                   void *data, int len)
2096 {
2097         struct ieee80211_local *local = wiphy_priv(wiphy);
2098         struct ieee80211_vif *vif = NULL;
2099
2100         if (!local->ops->testmode_cmd)
2101                 return -EOPNOTSUPP;
2102
2103         if (wdev) {
2104                 struct ieee80211_sub_if_data *sdata;
2105
2106                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2107                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2108                         vif = &sdata->vif;
2109         }
2110
2111         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2112 }
2113
2114 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2115                                    struct sk_buff *skb,
2116                                    struct netlink_callback *cb,
2117                                    void *data, int len)
2118 {
2119         struct ieee80211_local *local = wiphy_priv(wiphy);
2120
2121         if (!local->ops->testmode_dump)
2122                 return -EOPNOTSUPP;
2123
2124         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2125 }
2126 #endif
2127
2128 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2129                                 enum ieee80211_smps_mode smps_mode)
2130 {
2131         struct sta_info *sta;
2132         enum ieee80211_smps_mode old_req;
2133         int i;
2134
2135         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2136                 return -EINVAL;
2137
2138         if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2139                 return 0;
2140
2141         old_req = sdata->u.ap.req_smps;
2142         sdata->u.ap.req_smps = smps_mode;
2143
2144         /* AUTOMATIC doesn't mean much for AP - don't allow it */
2145         if (old_req == smps_mode ||
2146             smps_mode == IEEE80211_SMPS_AUTOMATIC)
2147                 return 0;
2148
2149          /* If no associated stations, there's no need to do anything */
2150         if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2151                 sdata->smps_mode = smps_mode;
2152                 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2153                 return 0;
2154         }
2155
2156         ht_dbg(sdata,
2157                "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2158                smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2159
2160         mutex_lock(&sdata->local->sta_mtx);
2161         for (i = 0; i < STA_HASH_SIZE; i++) {
2162                 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2163                                 lockdep_is_held(&sdata->local->sta_mtx));
2164                      sta;
2165                      sta = rcu_dereference_protected(sta->hnext,
2166                                 lockdep_is_held(&sdata->local->sta_mtx))) {
2167                         /*
2168                          * Only stations associated to our AP and
2169                          * associated VLANs
2170                          */
2171                         if (sta->sdata->bss != &sdata->u.ap)
2172                                 continue;
2173
2174                         /* This station doesn't support MIMO - skip it */
2175                         if (sta_info_tx_streams(sta) == 1)
2176                                 continue;
2177
2178                         /*
2179                          * Don't wake up a STA just to send the action frame
2180                          * unless we are getting more restrictive.
2181                          */
2182                         if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2183                             !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2184                                                            smps_mode)) {
2185                                 ht_dbg(sdata,
2186                                        "Won't send SMPS to sleeping STA %pM\n",
2187                                        sta->sta.addr);
2188                                 continue;
2189                         }
2190
2191                         /*
2192                          * If the STA is not authorized, wait until it gets
2193                          * authorized and the action frame will be sent then.
2194                          */
2195                         if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2196                                 continue;
2197
2198                         ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2199                         ieee80211_send_smps_action(sdata, smps_mode,
2200                                                    sta->sta.addr,
2201                                                    sdata->vif.bss_conf.bssid);
2202                 }
2203         }
2204         mutex_unlock(&sdata->local->sta_mtx);
2205
2206         sdata->smps_mode = smps_mode;
2207         ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2208
2209         return 0;
2210 }
2211
2212 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2213                                  enum ieee80211_smps_mode smps_mode)
2214 {
2215         const u8 *ap;
2216         enum ieee80211_smps_mode old_req;
2217         int err;
2218
2219         lockdep_assert_held(&sdata->wdev.mtx);
2220
2221         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2222                 return -EINVAL;
2223
2224         old_req = sdata->u.mgd.req_smps;
2225         sdata->u.mgd.req_smps = smps_mode;
2226
2227         if (old_req == smps_mode &&
2228             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2229                 return 0;
2230
2231         /*
2232          * If not associated, or current association is not an HT
2233          * association, there's no need to do anything, just store
2234          * the new value until we associate.
2235          */
2236         if (!sdata->u.mgd.associated ||
2237             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2238                 return 0;
2239
2240         ap = sdata->u.mgd.associated->bssid;
2241
2242         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2243                 if (sdata->u.mgd.powersave)
2244                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2245                 else
2246                         smps_mode = IEEE80211_SMPS_OFF;
2247         }
2248
2249         /* send SM PS frame to AP */
2250         err = ieee80211_send_smps_action(sdata, smps_mode,
2251                                          ap, ap);
2252         if (err)
2253                 sdata->u.mgd.req_smps = old_req;
2254
2255         return err;
2256 }
2257
2258 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2259                                     bool enabled, int timeout)
2260 {
2261         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2262         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2263
2264         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2265                 return -EOPNOTSUPP;
2266
2267         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2268                 return -EOPNOTSUPP;
2269
2270         if (enabled == sdata->u.mgd.powersave &&
2271             timeout == local->dynamic_ps_forced_timeout)
2272                 return 0;
2273
2274         sdata->u.mgd.powersave = enabled;
2275         local->dynamic_ps_forced_timeout = timeout;
2276
2277         /* no change, but if automatic follow powersave */
2278         sdata_lock(sdata);
2279         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2280         sdata_unlock(sdata);
2281
2282         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2283                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2284
2285         ieee80211_recalc_ps(local, -1);
2286         ieee80211_recalc_ps_vif(sdata);
2287
2288         return 0;
2289 }
2290
2291 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2292                                          struct net_device *dev,
2293                                          s32 rssi_thold, u32 rssi_hyst)
2294 {
2295         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2296         struct ieee80211_vif *vif = &sdata->vif;
2297         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2298
2299         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2300             rssi_hyst == bss_conf->cqm_rssi_hyst)
2301                 return 0;
2302
2303         bss_conf->cqm_rssi_thold = rssi_thold;
2304         bss_conf->cqm_rssi_hyst = rssi_hyst;
2305
2306         /* tell the driver upon association, unless already associated */
2307         if (sdata->u.mgd.associated &&
2308             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2309                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2310
2311         return 0;
2312 }
2313
2314 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2315                                       struct net_device *dev,
2316                                       const u8 *addr,
2317                                       const struct cfg80211_bitrate_mask *mask)
2318 {
2319         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2320         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2321         int i, ret;
2322
2323         if (!ieee80211_sdata_running(sdata))
2324                 return -ENETDOWN;
2325
2326         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2327                 ret = drv_set_bitrate_mask(local, sdata, mask);
2328                 if (ret)
2329                         return ret;
2330         }
2331
2332         for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2333                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2334                 int j;
2335
2336                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2337                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2338                        sizeof(mask->control[i].ht_mcs));
2339
2340                 sdata->rc_has_mcs_mask[i] = false;
2341                 if (!sband)
2342                         continue;
2343
2344                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2345                         if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2346                                 sdata->rc_has_mcs_mask[i] = true;
2347                                 break;
2348                         }
2349         }
2350
2351         return 0;
2352 }
2353
2354 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2355                                     struct ieee80211_sub_if_data *sdata,
2356                                     struct ieee80211_channel *channel,
2357                                     unsigned int duration, u64 *cookie,
2358                                     struct sk_buff *txskb,
2359                                     enum ieee80211_roc_type type)
2360 {
2361         struct ieee80211_roc_work *roc, *tmp;
2362         bool queued = false;
2363         int ret;
2364
2365         lockdep_assert_held(&local->mtx);
2366
2367         if (local->use_chanctx && !local->ops->remain_on_channel)
2368                 return -EOPNOTSUPP;
2369
2370         roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2371         if (!roc)
2372                 return -ENOMEM;
2373
2374         /*
2375          * If the duration is zero, then the driver
2376          * wouldn't actually do anything. Set it to
2377          * 10 for now.
2378          *
2379          * TODO: cancel the off-channel operation
2380          *       when we get the SKB's TX status and
2381          *       the wait time was zero before.
2382          */
2383         if (!duration)
2384                 duration = 10;
2385
2386         roc->chan = channel;
2387         roc->duration = duration;
2388         roc->req_duration = duration;
2389         roc->frame = txskb;
2390         roc->type = type;
2391         roc->mgmt_tx_cookie = (unsigned long)txskb;
2392         roc->sdata = sdata;
2393         INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2394         INIT_LIST_HEAD(&roc->dependents);
2395
2396         /*
2397          * cookie is either the roc cookie (for normal roc)
2398          * or the SKB (for mgmt TX)
2399          */
2400         if (!txskb) {
2401                 /* local->mtx protects this */
2402                 local->roc_cookie_counter++;
2403                 roc->cookie = local->roc_cookie_counter;
2404                 /* wow, you wrapped 64 bits ... more likely a bug */
2405                 if (WARN_ON(roc->cookie == 0)) {
2406                         roc->cookie = 1;
2407                         local->roc_cookie_counter++;
2408                 }
2409                 *cookie = roc->cookie;
2410         } else {
2411                 *cookie = (unsigned long)txskb;
2412         }
2413
2414         /* if there's one pending or we're scanning, queue this one */
2415         if (!list_empty(&local->roc_list) ||
2416             local->scanning || local->radar_detect_enabled)
2417                 goto out_check_combine;
2418
2419         /* if not HW assist, just queue & schedule work */
2420         if (!local->ops->remain_on_channel) {
2421                 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2422                 goto out_queue;
2423         }
2424
2425         /* otherwise actually kick it off here (for error handling) */
2426
2427         ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2428         if (ret) {
2429                 kfree(roc);
2430                 return ret;
2431         }
2432
2433         roc->started = true;
2434         goto out_queue;
2435
2436  out_check_combine:
2437         list_for_each_entry(tmp, &local->roc_list, list) {
2438                 if (tmp->chan != channel || tmp->sdata != sdata)
2439                         continue;
2440
2441                 /*
2442                  * Extend this ROC if possible:
2443                  *
2444                  * If it hasn't started yet, just increase the duration
2445                  * and add the new one to the list of dependents.
2446                  * If the type of the new ROC has higher priority, modify the
2447                  * type of the previous one to match that of the new one.
2448                  */
2449                 if (!tmp->started) {
2450                         list_add_tail(&roc->list, &tmp->dependents);
2451                         tmp->duration = max(tmp->duration, roc->duration);
2452                         tmp->type = max(tmp->type, roc->type);
2453                         queued = true;
2454                         break;
2455                 }
2456
2457                 /* If it has already started, it's more difficult ... */
2458                 if (local->ops->remain_on_channel) {
2459                         unsigned long j = jiffies;
2460
2461                         /*
2462                          * In the offloaded ROC case, if it hasn't begun, add
2463                          * this new one to the dependent list to be handled
2464                          * when the master one begins. If it has begun,
2465                          * check that there's still a minimum time left and
2466                          * if so, start this one, transmitting the frame, but
2467                          * add it to the list directly after this one with
2468                          * a reduced time so we'll ask the driver to execute
2469                          * it right after finishing the previous one, in the
2470                          * hope that it'll also be executed right afterwards,
2471                          * effectively extending the old one.
2472                          * If there's no minimum time left, just add it to the
2473                          * normal list.
2474                          * TODO: the ROC type is ignored here, assuming that it
2475                          * is better to immediately use the current ROC.
2476                          */
2477                         if (!tmp->hw_begun) {
2478                                 list_add_tail(&roc->list, &tmp->dependents);
2479                                 queued = true;
2480                                 break;
2481                         }
2482
2483                         if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2484                                         tmp->hw_start_time +
2485                                         msecs_to_jiffies(tmp->duration))) {
2486                                 int new_dur;
2487
2488                                 ieee80211_handle_roc_started(roc);
2489
2490                                 new_dur = roc->duration -
2491                                           jiffies_to_msecs(tmp->hw_start_time +
2492                                                            msecs_to_jiffies(
2493                                                                 tmp->duration) -
2494                                                            j);
2495
2496                                 if (new_dur > 0) {
2497                                         /* add right after tmp */
2498                                         list_add(&roc->list, &tmp->list);
2499                                 } else {
2500                                         list_add_tail(&roc->list,
2501                                                       &tmp->dependents);
2502                                 }
2503                                 queued = true;
2504                         }
2505                 } else if (del_timer_sync(&tmp->work.timer)) {
2506                         unsigned long new_end;
2507
2508                         /*
2509                          * In the software ROC case, cancel the timer, if
2510                          * that fails then the finish work is already
2511                          * queued/pending and thus we queue the new ROC
2512                          * normally, if that succeeds then we can extend
2513                          * the timer duration and TX the frame (if any.)
2514                          */
2515
2516                         list_add_tail(&roc->list, &tmp->dependents);
2517                         queued = true;
2518
2519                         new_end = jiffies + msecs_to_jiffies(roc->duration);
2520
2521                         /* ok, it was started & we canceled timer */
2522                         if (time_after(new_end, tmp->work.timer.expires))
2523                                 mod_timer(&tmp->work.timer, new_end);
2524                         else
2525                                 add_timer(&tmp->work.timer);
2526
2527                         ieee80211_handle_roc_started(roc);
2528                 }
2529                 break;
2530         }
2531
2532  out_queue:
2533         if (!queued)
2534                 list_add_tail(&roc->list, &local->roc_list);
2535
2536         return 0;
2537 }
2538
2539 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2540                                        struct wireless_dev *wdev,
2541                                        struct ieee80211_channel *chan,
2542                                        unsigned int duration,
2543                                        u64 *cookie)
2544 {
2545         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2546         struct ieee80211_local *local = sdata->local;
2547         int ret;
2548
2549         mutex_lock(&local->mtx);
2550         ret = ieee80211_start_roc_work(local, sdata, chan,
2551                                        duration, cookie, NULL,
2552                                        IEEE80211_ROC_TYPE_NORMAL);
2553         mutex_unlock(&local->mtx);
2554
2555         return ret;
2556 }
2557
2558 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2559                                 u64 cookie, bool mgmt_tx)
2560 {
2561         struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2562         int ret;
2563
2564         mutex_lock(&local->mtx);
2565         list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2566                 struct ieee80211_roc_work *dep, *tmp2;
2567
2568                 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2569                         if (!mgmt_tx && dep->cookie != cookie)
2570                                 continue;
2571                         else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2572                                 continue;
2573                         /* found dependent item -- just remove it */
2574                         list_del(&dep->list);
2575                         mutex_unlock(&local->mtx);
2576
2577                         ieee80211_roc_notify_destroy(dep, true);
2578                         return 0;
2579                 }
2580
2581                 if (!mgmt_tx && roc->cookie != cookie)
2582                         continue;
2583                 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2584                         continue;
2585
2586                 found = roc;
2587                 break;
2588         }
2589
2590         if (!found) {
2591                 mutex_unlock(&local->mtx);
2592                 return -ENOENT;
2593         }
2594
2595         /*
2596          * We found the item to cancel, so do that. Note that it
2597          * may have dependents, which we also cancel (and send
2598          * the expired signal for.) Not doing so would be quite
2599          * tricky here, but we may need to fix it later.
2600          */
2601
2602         if (local->ops->remain_on_channel) {
2603                 if (found->started) {
2604                         ret = drv_cancel_remain_on_channel(local);
2605                         if (WARN_ON_ONCE(ret)) {
2606                                 mutex_unlock(&local->mtx);
2607                                 return ret;
2608                         }
2609                 }
2610
2611                 list_del(&found->list);
2612
2613                 if (found->started)
2614                         ieee80211_start_next_roc(local);
2615                 mutex_unlock(&local->mtx);
2616
2617                 ieee80211_roc_notify_destroy(found, true);
2618         } else {
2619                 /* work may be pending so use it all the time */
2620                 found->abort = true;
2621                 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2622
2623                 mutex_unlock(&local->mtx);
2624
2625                 /* work will clean up etc */
2626                 flush_delayed_work(&found->work);
2627                 WARN_ON(!found->to_be_freed);
2628                 kfree(found);
2629         }
2630
2631         return 0;
2632 }
2633
2634 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2635                                               struct wireless_dev *wdev,
2636                                               u64 cookie)
2637 {
2638         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2639         struct ieee80211_local *local = sdata->local;
2640
2641         return ieee80211_cancel_roc(local, cookie, false);
2642 }
2643
2644 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2645                                            struct net_device *dev,
2646                                            struct cfg80211_chan_def *chandef,
2647                                            u32 cac_time_ms)
2648 {
2649         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2650         struct ieee80211_local *local = sdata->local;
2651         int err;
2652
2653         mutex_lock(&local->mtx);
2654         if (!list_empty(&local->roc_list) || local->scanning) {
2655                 err = -EBUSY;
2656                 goto out_unlock;
2657         }
2658
2659         /* whatever, but channel contexts should not complain about that one */
2660         sdata->smps_mode = IEEE80211_SMPS_OFF;
2661         sdata->needed_rx_chains = local->rx_chains;
2662
2663         err = ieee80211_vif_use_channel(sdata, chandef,
2664                                         IEEE80211_CHANCTX_SHARED);
2665         if (err)
2666                 goto out_unlock;
2667
2668         ieee80211_queue_delayed_work(&sdata->local->hw,
2669                                      &sdata->dfs_cac_timer_work,
2670                                      msecs_to_jiffies(cac_time_ms));
2671
2672  out_unlock:
2673         mutex_unlock(&local->mtx);
2674         return err;
2675 }
2676
2677 static struct cfg80211_beacon_data *
2678 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2679 {
2680         struct cfg80211_beacon_data *new_beacon;
2681         u8 *pos;
2682         int len;
2683
2684         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2685               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2686               beacon->probe_resp_len;
2687
2688         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2689         if (!new_beacon)
2690                 return NULL;
2691
2692         pos = (u8 *)(new_beacon + 1);
2693         if (beacon->head_len) {
2694                 new_beacon->head_len = beacon->head_len;
2695                 new_beacon->head = pos;
2696                 memcpy(pos, beacon->head, beacon->head_len);
2697                 pos += beacon->head_len;
2698         }
2699         if (beacon->tail_len) {
2700                 new_beacon->tail_len = beacon->tail_len;
2701                 new_beacon->tail = pos;
2702                 memcpy(pos, beacon->tail, beacon->tail_len);
2703                 pos += beacon->tail_len;
2704         }
2705         if (beacon->beacon_ies_len) {
2706                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2707                 new_beacon->beacon_ies = pos;
2708                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2709                 pos += beacon->beacon_ies_len;
2710         }
2711         if (beacon->proberesp_ies_len) {
2712                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2713                 new_beacon->proberesp_ies = pos;
2714                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2715                 pos += beacon->proberesp_ies_len;
2716         }
2717         if (beacon->assocresp_ies_len) {
2718                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2719                 new_beacon->assocresp_ies = pos;
2720                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2721                 pos += beacon->assocresp_ies_len;
2722         }
2723         if (beacon->probe_resp_len) {
2724                 new_beacon->probe_resp_len = beacon->probe_resp_len;
2725                 beacon->probe_resp = pos;
2726                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2727                 pos += beacon->probe_resp_len;
2728         }
2729
2730         return new_beacon;
2731 }
2732
2733 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2734 {
2735         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2736
2737         ieee80211_queue_work(&sdata->local->hw,
2738                              &sdata->csa_finalize_work);
2739 }
2740 EXPORT_SYMBOL(ieee80211_csa_finish);
2741
2742 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2743                                           u32 *changed)
2744 {
2745         int err;
2746
2747         switch (sdata->vif.type) {
2748         case NL80211_IFTYPE_AP:
2749                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2750                                               NULL);
2751                 kfree(sdata->u.ap.next_beacon);
2752                 sdata->u.ap.next_beacon = NULL;
2753
2754                 if (err < 0)
2755                         return err;
2756                 *changed |= err;
2757                 break;
2758         case NL80211_IFTYPE_ADHOC:
2759                 err = ieee80211_ibss_finish_csa(sdata);
2760                 if (err < 0)
2761                         return err;
2762                 *changed |= err;
2763                 break;
2764 #ifdef CONFIG_MAC80211_MESH
2765         case NL80211_IFTYPE_MESH_POINT:
2766                 err = ieee80211_mesh_finish_csa(sdata);
2767                 if (err < 0)
2768                         return err;
2769                 *changed |= err;
2770                 break;
2771 #endif
2772         default:
2773                 WARN_ON(1);
2774                 return -EINVAL;
2775         }
2776
2777         return 0;
2778 }
2779
2780 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2781 {
2782         struct ieee80211_local *local = sdata->local;
2783         u32 changed = 0;
2784         int err;
2785
2786         sdata_assert_lock(sdata);
2787         lockdep_assert_held(&local->mtx);
2788         lockdep_assert_held(&local->chanctx_mtx);
2789
2790         /*
2791          * using reservation isn't immediate as it may be deferred until later
2792          * with multi-vif. once reservation is complete it will re-schedule the
2793          * work with no reserved_chanctx so verify chandef to check if it
2794          * completed successfully
2795          */
2796
2797         if (sdata->reserved_chanctx) {
2798                 /*
2799                  * with multi-vif csa driver may call ieee80211_csa_finish()
2800                  * many times while waiting for other interfaces to use their
2801                  * reservations
2802                  */
2803                 if (sdata->reserved_ready)
2804                         return 0;
2805
2806                 err = ieee80211_vif_use_reserved_context(sdata);
2807                 if (err)
2808                         return err;
2809
2810                 return 0;
2811         }
2812
2813         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2814                                         &sdata->csa_chandef))
2815                 return -EINVAL;
2816
2817         sdata->vif.csa_active = false;
2818
2819         err = ieee80211_set_after_csa_beacon(sdata, &changed);
2820         if (err)
2821                 return err;
2822
2823         ieee80211_bss_info_change_notify(sdata, changed);
2824         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2825
2826         if (sdata->csa_block_tx) {
2827                 ieee80211_wake_vif_queues(local, sdata,
2828                                           IEEE80211_QUEUE_STOP_REASON_CSA);
2829                 sdata->csa_block_tx = false;
2830         }
2831
2832         return 0;
2833 }
2834
2835 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2836 {
2837         if (__ieee80211_csa_finalize(sdata)) {
2838                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2839                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2840                                     GFP_KERNEL);
2841         }
2842 }
2843
2844 void ieee80211_csa_finalize_work(struct work_struct *work)
2845 {
2846         struct ieee80211_sub_if_data *sdata =
2847                 container_of(work, struct ieee80211_sub_if_data,
2848                              csa_finalize_work);
2849         struct ieee80211_local *local = sdata->local;
2850
2851         sdata_lock(sdata);
2852         mutex_lock(&local->mtx);
2853         mutex_lock(&local->chanctx_mtx);
2854
2855         /* AP might have been stopped while waiting for the lock. */
2856         if (!sdata->vif.csa_active)
2857                 goto unlock;
2858
2859         if (!ieee80211_sdata_running(sdata))
2860                 goto unlock;
2861
2862         ieee80211_csa_finalize(sdata);
2863
2864 unlock:
2865         mutex_unlock(&local->chanctx_mtx);
2866         mutex_unlock(&local->mtx);
2867         sdata_unlock(sdata);
2868 }
2869
2870 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2871                                     struct cfg80211_csa_settings *params,
2872                                     u32 *changed)
2873 {
2874         struct ieee80211_csa_settings csa = {};
2875         int err;
2876
2877         switch (sdata->vif.type) {
2878         case NL80211_IFTYPE_AP:
2879                 sdata->u.ap.next_beacon =
2880                         cfg80211_beacon_dup(&params->beacon_after);
2881                 if (!sdata->u.ap.next_beacon)
2882                         return -ENOMEM;
2883
2884                 /*
2885                  * With a count of 0, we don't have to wait for any
2886                  * TBTT before switching, so complete the CSA
2887                  * immediately.  In theory, with a count == 1 we
2888                  * should delay the switch until just before the next
2889                  * TBTT, but that would complicate things so we switch
2890                  * immediately too.  If we would delay the switch
2891                  * until the next TBTT, we would have to set the probe
2892                  * response here.
2893                  *
2894                  * TODO: A channel switch with count <= 1 without
2895                  * sending a CSA action frame is kind of useless,
2896                  * because the clients won't know we're changing
2897                  * channels.  The action frame must be implemented
2898                  * either here or in the userspace.
2899                  */
2900                 if (params->count <= 1)
2901                         break;
2902
2903                 if ((params->n_counter_offsets_beacon >
2904                      IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2905                     (params->n_counter_offsets_presp >
2906                      IEEE80211_MAX_CSA_COUNTERS_NUM))
2907                         return -EINVAL;
2908
2909                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2910                 csa.counter_offsets_presp = params->counter_offsets_presp;
2911                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2912                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2913                 csa.count = params->count;
2914
2915                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
2916                 if (err < 0) {
2917                         kfree(sdata->u.ap.next_beacon);
2918                         return err;
2919                 }
2920                 *changed |= err;
2921
2922                 break;
2923         case NL80211_IFTYPE_ADHOC:
2924                 if (!sdata->vif.bss_conf.ibss_joined)
2925                         return -EINVAL;
2926
2927                 if (params->chandef.width != sdata->u.ibss.chandef.width)
2928                         return -EINVAL;
2929
2930                 switch (params->chandef.width) {
2931                 case NL80211_CHAN_WIDTH_40:
2932                         if (cfg80211_get_chandef_type(&params->chandef) !=
2933                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2934                                 return -EINVAL;
2935                 case NL80211_CHAN_WIDTH_5:
2936                 case NL80211_CHAN_WIDTH_10:
2937                 case NL80211_CHAN_WIDTH_20_NOHT:
2938                 case NL80211_CHAN_WIDTH_20:
2939                         break;
2940                 default:
2941                         return -EINVAL;
2942                 }
2943
2944                 /* changes into another band are not supported */
2945                 if (sdata->u.ibss.chandef.chan->band !=
2946                     params->chandef.chan->band)
2947                         return -EINVAL;
2948
2949                 /* see comments in the NL80211_IFTYPE_AP block */
2950                 if (params->count > 1) {
2951                         err = ieee80211_ibss_csa_beacon(sdata, params);
2952                         if (err < 0)
2953                                 return err;
2954                         *changed |= err;
2955                 }
2956
2957                 ieee80211_send_action_csa(sdata, params);
2958
2959                 break;
2960 #ifdef CONFIG_MAC80211_MESH
2961         case NL80211_IFTYPE_MESH_POINT: {
2962                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2963
2964                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
2965                         return -EINVAL;
2966
2967                 /* changes into another band are not supported */
2968                 if (sdata->vif.bss_conf.chandef.chan->band !=
2969                     params->chandef.chan->band)
2970                         return -EINVAL;
2971
2972                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
2973                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
2974                         if (!ifmsh->pre_value)
2975                                 ifmsh->pre_value = 1;
2976                         else
2977                                 ifmsh->pre_value++;
2978                 }
2979
2980                 /* see comments in the NL80211_IFTYPE_AP block */
2981                 if (params->count > 1) {
2982                         err = ieee80211_mesh_csa_beacon(sdata, params);
2983                         if (err < 0) {
2984                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
2985                                 return err;
2986                         }
2987                         *changed |= err;
2988                 }
2989
2990                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
2991                         ieee80211_send_action_csa(sdata, params);
2992
2993                 break;
2994                 }
2995 #endif
2996         default:
2997                 return -EOPNOTSUPP;
2998         }
2999
3000         return 0;
3001 }
3002
3003 static int
3004 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3005                            struct cfg80211_csa_settings *params)
3006 {
3007         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3008         struct ieee80211_local *local = sdata->local;
3009         struct ieee80211_chanctx_conf *conf;
3010         struct ieee80211_chanctx *chanctx;
3011         int err, changed = 0;
3012
3013         sdata_assert_lock(sdata);
3014         lockdep_assert_held(&local->mtx);
3015
3016         if (!list_empty(&local->roc_list) || local->scanning)
3017                 return -EBUSY;
3018
3019         if (sdata->wdev.cac_started)
3020                 return -EBUSY;
3021
3022         if (cfg80211_chandef_identical(&params->chandef,
3023                                        &sdata->vif.bss_conf.chandef))
3024                 return -EINVAL;
3025
3026         /* don't allow another channel switch if one is already active. */
3027         if (sdata->vif.csa_active)
3028                 return -EBUSY;
3029
3030         mutex_lock(&local->chanctx_mtx);
3031         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3032                                          lockdep_is_held(&local->chanctx_mtx));
3033         if (!conf) {
3034                 err = -EBUSY;
3035                 goto out;
3036         }
3037
3038         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3039         if (!chanctx) {
3040                 err = -EBUSY;
3041                 goto out;
3042         }
3043
3044         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3045                                             chanctx->mode,
3046                                             params->radar_required);
3047         if (err)
3048                 goto out;
3049
3050         /* if reservation is invalid then this will fail */
3051         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3052         if (err) {
3053                 ieee80211_vif_unreserve_chanctx(sdata);
3054                 goto out;
3055         }
3056
3057         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3058         if (err) {
3059                 ieee80211_vif_unreserve_chanctx(sdata);
3060                 goto out;
3061         }
3062
3063         sdata->csa_chandef = params->chandef;
3064         sdata->csa_block_tx = params->block_tx;
3065         sdata->vif.csa_active = true;
3066
3067         if (sdata->csa_block_tx)
3068                 ieee80211_stop_vif_queues(local, sdata,
3069                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3070
3071         if (changed) {
3072                 ieee80211_bss_info_change_notify(sdata, changed);
3073                 drv_channel_switch_beacon(sdata, &params->chandef);
3074         } else {
3075                 /* if the beacon didn't change, we can finalize immediately */
3076                 ieee80211_csa_finalize(sdata);
3077         }
3078
3079 out:
3080         mutex_unlock(&local->chanctx_mtx);
3081         return err;
3082 }
3083
3084 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3085                              struct cfg80211_csa_settings *params)
3086 {
3087         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3088         struct ieee80211_local *local = sdata->local;
3089         int err;
3090
3091         mutex_lock(&local->mtx);
3092         err = __ieee80211_channel_switch(wiphy, dev, params);
3093         mutex_unlock(&local->mtx);
3094
3095         return err;
3096 }
3097
3098 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3099                              struct cfg80211_mgmt_tx_params *params,
3100                              u64 *cookie)
3101 {
3102         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3103         struct ieee80211_local *local = sdata->local;
3104         struct sk_buff *skb;
3105         struct sta_info *sta;
3106         const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3107         bool need_offchan = false;
3108         u32 flags;
3109         int ret;
3110         u8 *data;
3111
3112         if (params->dont_wait_for_ack)
3113                 flags = IEEE80211_TX_CTL_NO_ACK;
3114         else
3115                 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3116                         IEEE80211_TX_CTL_REQ_TX_STATUS;
3117
3118         if (params->no_cck)
3119                 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3120
3121         switch (sdata->vif.type) {
3122         case NL80211_IFTYPE_ADHOC:
3123                 if (!sdata->vif.bss_conf.ibss_joined)
3124                         need_offchan = true;
3125                 /* fall through */
3126 #ifdef CONFIG_MAC80211_MESH
3127         case NL80211_IFTYPE_MESH_POINT:
3128                 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3129                     !sdata->u.mesh.mesh_id_len)
3130                         need_offchan = true;
3131                 /* fall through */
3132 #endif
3133         case NL80211_IFTYPE_AP:
3134         case NL80211_IFTYPE_AP_VLAN:
3135         case NL80211_IFTYPE_P2P_GO:
3136                 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3137                     !ieee80211_vif_is_mesh(&sdata->vif) &&
3138                     !rcu_access_pointer(sdata->bss->beacon))
3139                         need_offchan = true;
3140                 if (!ieee80211_is_action(mgmt->frame_control) ||
3141                     mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3142                     mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3143                     mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3144                         break;
3145                 rcu_read_lock();
3146                 sta = sta_info_get(sdata, mgmt->da);
3147                 rcu_read_unlock();
3148                 if (!sta)
3149                         return -ENOLINK;
3150                 break;
3151         case NL80211_IFTYPE_STATION:
3152         case NL80211_IFTYPE_P2P_CLIENT:
3153                 if (!sdata->u.mgd.associated)
3154                         need_offchan = true;
3155                 break;
3156         case NL80211_IFTYPE_P2P_DEVICE:
3157                 need_offchan = true;
3158                 break;
3159         default:
3160                 return -EOPNOTSUPP;
3161         }
3162
3163         /* configurations requiring offchan cannot work if no channel has been
3164          * specified
3165          */
3166         if (need_offchan && !params->chan)
3167                 return -EINVAL;
3168
3169         mutex_lock(&local->mtx);
3170
3171         /* Check if the operating channel is the requested channel */
3172         if (!need_offchan) {
3173                 struct ieee80211_chanctx_conf *chanctx_conf;
3174
3175                 rcu_read_lock();
3176                 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3177
3178                 if (chanctx_conf) {
3179                         need_offchan = params->chan &&
3180                                        (params->chan !=
3181                                         chanctx_conf->def.chan);
3182                 } else if (!params->chan) {
3183                         ret = -EINVAL;
3184                         rcu_read_unlock();
3185                         goto out_unlock;
3186                 } else {
3187                         need_offchan = true;
3188                 }
3189                 rcu_read_unlock();
3190         }
3191
3192         if (need_offchan && !params->offchan) {
3193                 ret = -EBUSY;
3194                 goto out_unlock;
3195         }
3196
3197         skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3198         if (!skb) {
3199                 ret = -ENOMEM;
3200                 goto out_unlock;
3201         }
3202         skb_reserve(skb, local->hw.extra_tx_headroom);
3203
3204         data = skb_put(skb, params->len);
3205         memcpy(data, params->buf, params->len);
3206
3207         /* Update CSA counters */
3208         if (sdata->vif.csa_active &&
3209             (sdata->vif.type == NL80211_IFTYPE_AP ||
3210              sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3211             params->n_csa_offsets) {
3212                 int i;
3213                 struct beacon_data *beacon = NULL;
3214
3215                 rcu_read_lock();
3216
3217                 if (sdata->vif.type == NL80211_IFTYPE_AP)
3218                         beacon = rcu_dereference(sdata->u.ap.beacon);
3219                 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3220                         beacon = rcu_dereference(sdata->u.ibss.presp);
3221                 else if (ieee80211_vif_is_mesh(&sdata->vif))
3222                         beacon = rcu_dereference(sdata->u.mesh.beacon);
3223
3224                 if (beacon)
3225                         for (i = 0; i < params->n_csa_offsets; i++)
3226                                 data[params->csa_offsets[i]] =
3227                                         beacon->csa_current_counter;
3228
3229                 rcu_read_unlock();
3230         }
3231
3232         IEEE80211_SKB_CB(skb)->flags = flags;
3233
3234         skb->dev = sdata->dev;
3235
3236         if (!need_offchan) {
3237                 *cookie = (unsigned long) skb;
3238                 ieee80211_tx_skb(sdata, skb);
3239                 ret = 0;
3240                 goto out_unlock;
3241         }
3242
3243         IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3244                                         IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3245         if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3246                 IEEE80211_SKB_CB(skb)->hw_queue =
3247                         local->hw.offchannel_tx_hw_queue;
3248
3249         /* This will handle all kinds of coalescing and immediate TX */
3250         ret = ieee80211_start_roc_work(local, sdata, params->chan,
3251                                        params->wait, cookie, skb,
3252                                        IEEE80211_ROC_TYPE_MGMT_TX);
3253         if (ret)
3254                 kfree_skb(skb);
3255  out_unlock:
3256         mutex_unlock(&local->mtx);
3257         return ret;
3258 }
3259
3260 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3261                                          struct wireless_dev *wdev,
3262                                          u64 cookie)
3263 {
3264         struct ieee80211_local *local = wiphy_priv(wiphy);
3265
3266         return ieee80211_cancel_roc(local, cookie, true);
3267 }
3268
3269 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3270                                           struct wireless_dev *wdev,
3271                                           u16 frame_type, bool reg)
3272 {
3273         struct ieee80211_local *local = wiphy_priv(wiphy);
3274
3275         switch (frame_type) {
3276         case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3277                 if (reg)
3278                         local->probe_req_reg++;
3279                 else
3280                         local->probe_req_reg--;
3281
3282                 if (!local->open_count)
3283                         break;
3284
3285                 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3286                 break;
3287         default:
3288                 break;
3289         }
3290 }
3291
3292 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3293 {
3294         struct ieee80211_local *local = wiphy_priv(wiphy);
3295
3296         if (local->started)
3297                 return -EOPNOTSUPP;
3298
3299         return drv_set_antenna(local, tx_ant, rx_ant);
3300 }
3301
3302 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3303 {
3304         struct ieee80211_local *local = wiphy_priv(wiphy);
3305
3306         return drv_get_antenna(local, tx_ant, rx_ant);
3307 }
3308
3309 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3310                                     struct net_device *dev,
3311                                     struct cfg80211_gtk_rekey_data *data)
3312 {
3313         struct ieee80211_local *local = wiphy_priv(wiphy);
3314         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3315
3316         if (!local->ops->set_rekey_data)
3317                 return -EOPNOTSUPP;
3318
3319         drv_set_rekey_data(local, sdata, data);
3320
3321         return 0;
3322 }
3323
3324 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3325                                   const u8 *peer, u64 *cookie)
3326 {
3327         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3328         struct ieee80211_local *local = sdata->local;
3329         struct ieee80211_qos_hdr *nullfunc;
3330         struct sk_buff *skb;
3331         int size = sizeof(*nullfunc);
3332         __le16 fc;
3333         bool qos;
3334         struct ieee80211_tx_info *info;
3335         struct sta_info *sta;
3336         struct ieee80211_chanctx_conf *chanctx_conf;
3337         enum ieee80211_band band;
3338
3339         rcu_read_lock();
3340         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3341         if (WARN_ON(!chanctx_conf)) {
3342                 rcu_read_unlock();
3343                 return -EINVAL;
3344         }
3345         band = chanctx_conf->def.chan->band;
3346         sta = sta_info_get_bss(sdata, peer);
3347         if (sta) {
3348                 qos = sta->sta.wme;
3349         } else {
3350                 rcu_read_unlock();
3351                 return -ENOLINK;
3352         }
3353
3354         if (qos) {
3355                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3356                                  IEEE80211_STYPE_QOS_NULLFUNC |
3357                                  IEEE80211_FCTL_FROMDS);
3358         } else {
3359                 size -= 2;
3360                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3361                                  IEEE80211_STYPE_NULLFUNC |
3362                                  IEEE80211_FCTL_FROMDS);
3363         }
3364
3365         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3366         if (!skb) {
3367                 rcu_read_unlock();
3368                 return -ENOMEM;
3369         }
3370
3371         skb->dev = dev;
3372
3373         skb_reserve(skb, local->hw.extra_tx_headroom);
3374
3375         nullfunc = (void *) skb_put(skb, size);
3376         nullfunc->frame_control = fc;
3377         nullfunc->duration_id = 0;
3378         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3379         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3380         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3381         nullfunc->seq_ctrl = 0;
3382
3383         info = IEEE80211_SKB_CB(skb);
3384
3385         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3386                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3387
3388         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3389         skb->priority = 7;
3390         if (qos)
3391                 nullfunc->qos_ctrl = cpu_to_le16(7);
3392
3393         local_bh_disable();
3394         ieee80211_xmit(sdata, skb, band);
3395         local_bh_enable();
3396         rcu_read_unlock();
3397
3398         *cookie = (unsigned long) skb;
3399         return 0;
3400 }
3401
3402 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3403                                      struct wireless_dev *wdev,
3404                                      struct cfg80211_chan_def *chandef)
3405 {
3406         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3407         struct ieee80211_local *local = wiphy_priv(wiphy);
3408         struct ieee80211_chanctx_conf *chanctx_conf;
3409         int ret = -ENODATA;
3410
3411         rcu_read_lock();
3412         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3413         if (chanctx_conf) {
3414                 *chandef = chanctx_conf->def;
3415                 ret = 0;
3416         } else if (local->open_count > 0 &&
3417                    local->open_count == local->monitors &&
3418                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3419                 if (local->use_chanctx)
3420                         *chandef = local->monitor_chandef;
3421                 else
3422                         *chandef = local->_oper_chandef;
3423                 ret = 0;
3424         }
3425         rcu_read_unlock();
3426
3427         return ret;
3428 }
3429
3430 #ifdef CONFIG_PM
3431 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3432 {
3433         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3434 }
3435 #endif
3436
3437 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3438                                  struct net_device *dev,
3439                                  struct cfg80211_qos_map *qos_map)
3440 {
3441         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3442         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3443
3444         if (qos_map) {
3445                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3446                 if (!new_qos_map)
3447                         return -ENOMEM;
3448                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3449         } else {
3450                 /* A NULL qos_map was passed to disable QoS mapping */
3451                 new_qos_map = NULL;
3452         }
3453
3454         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3455         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3456         if (old_qos_map)
3457                 kfree_rcu(old_qos_map, rcu_head);
3458
3459         return 0;
3460 }
3461
3462 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3463                                       struct net_device *dev,
3464                                       struct cfg80211_chan_def *chandef)
3465 {
3466         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3467         int ret;
3468         u32 changed = 0;
3469
3470         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3471         if (ret == 0)
3472                 ieee80211_bss_info_change_notify(sdata, changed);
3473
3474         return ret;
3475 }
3476
3477 const struct cfg80211_ops mac80211_config_ops = {
3478         .add_virtual_intf = ieee80211_add_iface,
3479         .del_virtual_intf = ieee80211_del_iface,
3480         .change_virtual_intf = ieee80211_change_iface,
3481         .start_p2p_device = ieee80211_start_p2p_device,
3482         .stop_p2p_device = ieee80211_stop_p2p_device,
3483         .add_key = ieee80211_add_key,
3484         .del_key = ieee80211_del_key,
3485         .get_key = ieee80211_get_key,
3486         .set_default_key = ieee80211_config_default_key,
3487         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3488         .start_ap = ieee80211_start_ap,
3489         .change_beacon = ieee80211_change_beacon,
3490         .stop_ap = ieee80211_stop_ap,
3491         .add_station = ieee80211_add_station,
3492         .del_station = ieee80211_del_station,
3493         .change_station = ieee80211_change_station,
3494         .get_station = ieee80211_get_station,
3495         .dump_station = ieee80211_dump_station,
3496         .dump_survey = ieee80211_dump_survey,
3497 #ifdef CONFIG_MAC80211_MESH
3498         .add_mpath = ieee80211_add_mpath,
3499         .del_mpath = ieee80211_del_mpath,
3500         .change_mpath = ieee80211_change_mpath,
3501         .get_mpath = ieee80211_get_mpath,
3502         .dump_mpath = ieee80211_dump_mpath,
3503         .update_mesh_config = ieee80211_update_mesh_config,
3504         .get_mesh_config = ieee80211_get_mesh_config,
3505         .join_mesh = ieee80211_join_mesh,
3506         .leave_mesh = ieee80211_leave_mesh,
3507 #endif
3508         .change_bss = ieee80211_change_bss,
3509         .set_txq_params = ieee80211_set_txq_params,
3510         .set_monitor_channel = ieee80211_set_monitor_channel,
3511         .suspend = ieee80211_suspend,
3512         .resume = ieee80211_resume,
3513         .scan = ieee80211_scan,
3514         .sched_scan_start = ieee80211_sched_scan_start,
3515         .sched_scan_stop = ieee80211_sched_scan_stop,
3516         .auth = ieee80211_auth,
3517         .assoc = ieee80211_assoc,
3518         .deauth = ieee80211_deauth,
3519         .disassoc = ieee80211_disassoc,
3520         .join_ibss = ieee80211_join_ibss,
3521         .leave_ibss = ieee80211_leave_ibss,
3522         .set_mcast_rate = ieee80211_set_mcast_rate,
3523         .set_wiphy_params = ieee80211_set_wiphy_params,
3524         .set_tx_power = ieee80211_set_tx_power,
3525         .get_tx_power = ieee80211_get_tx_power,
3526         .set_wds_peer = ieee80211_set_wds_peer,
3527         .rfkill_poll = ieee80211_rfkill_poll,
3528         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3529         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3530         .set_power_mgmt = ieee80211_set_power_mgmt,
3531         .set_bitrate_mask = ieee80211_set_bitrate_mask,
3532         .remain_on_channel = ieee80211_remain_on_channel,
3533         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3534         .mgmt_tx = ieee80211_mgmt_tx,
3535         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3536         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3537         .mgmt_frame_register = ieee80211_mgmt_frame_register,
3538         .set_antenna = ieee80211_set_antenna,
3539         .get_antenna = ieee80211_get_antenna,
3540         .set_rekey_data = ieee80211_set_rekey_data,
3541         .tdls_oper = ieee80211_tdls_oper,
3542         .tdls_mgmt = ieee80211_tdls_mgmt,
3543         .probe_client = ieee80211_probe_client,
3544         .set_noack_map = ieee80211_set_noack_map,
3545 #ifdef CONFIG_PM
3546         .set_wakeup = ieee80211_set_wakeup,
3547 #endif
3548         .get_channel = ieee80211_cfg_get_channel,
3549         .start_radar_detection = ieee80211_start_radar_detection,
3550         .channel_switch = ieee80211_channel_switch,
3551         .set_qos_map = ieee80211_set_qos_map,
3552         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3553 };