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                 if (set & BIT(NL80211_STA_FLAG_WME)) {
1016                         set_sta_flag(sta, WLAN_STA_WME);
1017                         sta->sta.wme = true;
1018                 } else {
1019                         clear_sta_flag(sta, WLAN_STA_WME);
1020                         sta->sta.wme = false;
1021                 }
1022         }
1023
1024         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1025                 if (set & BIT(NL80211_STA_FLAG_MFP))
1026                         set_sta_flag(sta, WLAN_STA_MFP);
1027                 else
1028                         clear_sta_flag(sta, WLAN_STA_MFP);
1029         }
1030
1031         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1032                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1033                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1034                 else
1035                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1036         }
1037
1038         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1039                 sta->sta.uapsd_queues = params->uapsd_queues;
1040                 sta->sta.max_sp = params->max_sp;
1041         }
1042
1043         /*
1044          * cfg80211 validates this (1-2007) and allows setting the AID
1045          * only when creating a new station entry
1046          */
1047         if (params->aid)
1048                 sta->sta.aid = params->aid;
1049
1050         /*
1051          * Some of the following updates would be racy if called on an
1052          * existing station, via ieee80211_change_station(). However,
1053          * all such changes are rejected by cfg80211 except for updates
1054          * changing the supported rates on an existing but not yet used
1055          * TDLS peer.
1056          */
1057
1058         if (params->listen_interval >= 0)
1059                 sta->listen_interval = params->listen_interval;
1060
1061         if (params->supported_rates) {
1062                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1063                                          sband, params->supported_rates,
1064                                          params->supported_rates_len,
1065                                          &sta->sta.supp_rates[band]);
1066         }
1067
1068         if (params->ht_capa)
1069                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1070                                                   params->ht_capa, sta);
1071
1072         if (params->vht_capa)
1073                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1074                                                     params->vht_capa, sta);
1075
1076         if (params->opmode_notif_used) {
1077                 /* returned value is only needed for rc update, but the
1078                  * rc isn't initialized here yet, so ignore it
1079                  */
1080                 __ieee80211_vht_handle_opmode(sdata, sta,
1081                                               params->opmode_notif,
1082                                               band, false);
1083         }
1084
1085         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1086 #ifdef CONFIG_MAC80211_MESH
1087                 u32 changed = 0;
1088
1089                 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1090                         switch (params->plink_state) {
1091                         case NL80211_PLINK_ESTAB:
1092                                 if (sta->plink_state != NL80211_PLINK_ESTAB)
1093                                         changed = mesh_plink_inc_estab_count(
1094                                                         sdata);
1095                                 sta->plink_state = params->plink_state;
1096
1097                                 ieee80211_mps_sta_status_update(sta);
1098                                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1099                                               sdata->u.mesh.mshcfg.power_mode);
1100                                 break;
1101                         case NL80211_PLINK_LISTEN:
1102                         case NL80211_PLINK_BLOCKED:
1103                         case NL80211_PLINK_OPN_SNT:
1104                         case NL80211_PLINK_OPN_RCVD:
1105                         case NL80211_PLINK_CNF_RCVD:
1106                         case NL80211_PLINK_HOLDING:
1107                                 if (sta->plink_state == NL80211_PLINK_ESTAB)
1108                                         changed = mesh_plink_dec_estab_count(
1109                                                         sdata);
1110                                 sta->plink_state = params->plink_state;
1111
1112                                 ieee80211_mps_sta_status_update(sta);
1113                                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1114                                                 NL80211_MESH_POWER_UNKNOWN);
1115                                 break;
1116                         default:
1117                                 /*  nothing  */
1118                                 break;
1119                         }
1120                 }
1121
1122                 switch (params->plink_action) {
1123                 case NL80211_PLINK_ACTION_NO_ACTION:
1124                         /* nothing */
1125                         break;
1126                 case NL80211_PLINK_ACTION_OPEN:
1127                         changed |= mesh_plink_open(sta);
1128                         break;
1129                 case NL80211_PLINK_ACTION_BLOCK:
1130                         changed |= mesh_plink_block(sta);
1131                         break;
1132                 }
1133
1134                 if (params->local_pm)
1135                         changed |=
1136                               ieee80211_mps_set_sta_local_pm(sta,
1137                                                              params->local_pm);
1138                 ieee80211_mbss_info_change_notify(sdata, changed);
1139 #endif
1140         }
1141
1142         /* set the STA state after all sta info from usermode has been set */
1143         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1144                 ret = sta_apply_auth_flags(local, sta, mask, set);
1145                 if (ret)
1146                         return ret;
1147         }
1148
1149         return 0;
1150 }
1151
1152 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1153                                  const u8 *mac,
1154                                  struct station_parameters *params)
1155 {
1156         struct ieee80211_local *local = wiphy_priv(wiphy);
1157         struct sta_info *sta;
1158         struct ieee80211_sub_if_data *sdata;
1159         int err;
1160         int layer2_update;
1161
1162         if (params->vlan) {
1163                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1164
1165                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1166                     sdata->vif.type != NL80211_IFTYPE_AP)
1167                         return -EINVAL;
1168         } else
1169                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1170
1171         if (ether_addr_equal(mac, sdata->vif.addr))
1172                 return -EINVAL;
1173
1174         if (is_multicast_ether_addr(mac))
1175                 return -EINVAL;
1176
1177         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1178         if (!sta)
1179                 return -ENOMEM;
1180
1181         /*
1182          * defaults -- if userspace wants something else we'll
1183          * change it accordingly in sta_apply_parameters()
1184          */
1185         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1186                 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1187                 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1188         } else {
1189                 sta->sta.tdls = true;
1190         }
1191
1192         err = sta_apply_parameters(local, sta, params);
1193         if (err) {
1194                 sta_info_free(local, sta);
1195                 return err;
1196         }
1197
1198         /*
1199          * for TDLS, rate control should be initialized only when
1200          * rates are known and station is marked authorized
1201          */
1202         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1203                 rate_control_rate_init(sta);
1204
1205         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1206                 sdata->vif.type == NL80211_IFTYPE_AP;
1207
1208         err = sta_info_insert_rcu(sta);
1209         if (err) {
1210                 rcu_read_unlock();
1211                 return err;
1212         }
1213
1214         if (layer2_update)
1215                 ieee80211_send_layer2_update(sta);
1216
1217         rcu_read_unlock();
1218
1219         return 0;
1220 }
1221
1222 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1223                                  const u8 *mac)
1224 {
1225         struct ieee80211_sub_if_data *sdata;
1226
1227         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1228
1229         if (mac)
1230                 return sta_info_destroy_addr_bss(sdata, mac);
1231
1232         sta_info_flush(sdata);
1233         return 0;
1234 }
1235
1236 static int ieee80211_change_station(struct wiphy *wiphy,
1237                                     struct net_device *dev, const u8 *mac,
1238                                     struct station_parameters *params)
1239 {
1240         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1241         struct ieee80211_local *local = wiphy_priv(wiphy);
1242         struct sta_info *sta;
1243         struct ieee80211_sub_if_data *vlansdata;
1244         enum cfg80211_station_type statype;
1245         int err;
1246
1247         mutex_lock(&local->sta_mtx);
1248
1249         sta = sta_info_get_bss(sdata, mac);
1250         if (!sta) {
1251                 err = -ENOENT;
1252                 goto out_err;
1253         }
1254
1255         switch (sdata->vif.type) {
1256         case NL80211_IFTYPE_MESH_POINT:
1257                 if (sdata->u.mesh.user_mpm)
1258                         statype = CFG80211_STA_MESH_PEER_USER;
1259                 else
1260                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1261                 break;
1262         case NL80211_IFTYPE_ADHOC:
1263                 statype = CFG80211_STA_IBSS;
1264                 break;
1265         case NL80211_IFTYPE_STATION:
1266                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1267                         statype = CFG80211_STA_AP_STA;
1268                         break;
1269                 }
1270                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1271                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1272                 else
1273                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1274                 break;
1275         case NL80211_IFTYPE_AP:
1276         case NL80211_IFTYPE_AP_VLAN:
1277                 statype = CFG80211_STA_AP_CLIENT;
1278                 break;
1279         default:
1280                 err = -EOPNOTSUPP;
1281                 goto out_err;
1282         }
1283
1284         err = cfg80211_check_station_change(wiphy, params, statype);
1285         if (err)
1286                 goto out_err;
1287
1288         if (params->vlan && params->vlan != sta->sdata->dev) {
1289                 bool prev_4addr = false;
1290                 bool new_4addr = false;
1291
1292                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1293
1294                 if (params->vlan->ieee80211_ptr->use_4addr) {
1295                         if (vlansdata->u.vlan.sta) {
1296                                 err = -EBUSY;
1297                                 goto out_err;
1298                         }
1299
1300                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1301                         new_4addr = true;
1302                 }
1303
1304                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1305                     sta->sdata->u.vlan.sta) {
1306                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1307                         prev_4addr = true;
1308                 }
1309
1310                 sta->sdata = vlansdata;
1311
1312                 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1313                     prev_4addr != new_4addr) {
1314                         if (new_4addr)
1315                                 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1316                         else
1317                                 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1318                 }
1319
1320                 ieee80211_send_layer2_update(sta);
1321         }
1322
1323         err = sta_apply_parameters(local, sta, params);
1324         if (err)
1325                 goto out_err;
1326
1327         /* When peer becomes authorized, init rate control as well */
1328         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1329             test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1330                 rate_control_rate_init(sta);
1331
1332         mutex_unlock(&local->sta_mtx);
1333
1334         if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1335              sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1336             sta->known_smps_mode != sta->sdata->bss->req_smps &&
1337             test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1338             sta_info_tx_streams(sta) != 1) {
1339                 ht_dbg(sta->sdata,
1340                        "%pM just authorized and MIMO capable - update SMPS\n",
1341                        sta->sta.addr);
1342                 ieee80211_send_smps_action(sta->sdata,
1343                         sta->sdata->bss->req_smps,
1344                         sta->sta.addr,
1345                         sta->sdata->vif.bss_conf.bssid);
1346         }
1347
1348         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1349             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1350                 ieee80211_recalc_ps(local, -1);
1351                 ieee80211_recalc_ps_vif(sdata);
1352         }
1353
1354         return 0;
1355 out_err:
1356         mutex_unlock(&local->sta_mtx);
1357         return err;
1358 }
1359
1360 #ifdef CONFIG_MAC80211_MESH
1361 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1362                                const u8 *dst, const u8 *next_hop)
1363 {
1364         struct ieee80211_sub_if_data *sdata;
1365         struct mesh_path *mpath;
1366         struct sta_info *sta;
1367
1368         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1369
1370         rcu_read_lock();
1371         sta = sta_info_get(sdata, next_hop);
1372         if (!sta) {
1373                 rcu_read_unlock();
1374                 return -ENOENT;
1375         }
1376
1377         mpath = mesh_path_add(sdata, dst);
1378         if (IS_ERR(mpath)) {
1379                 rcu_read_unlock();
1380                 return PTR_ERR(mpath);
1381         }
1382
1383         mesh_path_fix_nexthop(mpath, sta);
1384
1385         rcu_read_unlock();
1386         return 0;
1387 }
1388
1389 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1390                                const u8 *dst)
1391 {
1392         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1393
1394         if (dst)
1395                 return mesh_path_del(sdata, dst);
1396
1397         mesh_path_flush_by_iface(sdata);
1398         return 0;
1399 }
1400
1401 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1402                                   const u8 *dst, const u8 *next_hop)
1403 {
1404         struct ieee80211_sub_if_data *sdata;
1405         struct mesh_path *mpath;
1406         struct sta_info *sta;
1407
1408         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1409
1410         rcu_read_lock();
1411
1412         sta = sta_info_get(sdata, next_hop);
1413         if (!sta) {
1414                 rcu_read_unlock();
1415                 return -ENOENT;
1416         }
1417
1418         mpath = mesh_path_lookup(sdata, dst);
1419         if (!mpath) {
1420                 rcu_read_unlock();
1421                 return -ENOENT;
1422         }
1423
1424         mesh_path_fix_nexthop(mpath, sta);
1425
1426         rcu_read_unlock();
1427         return 0;
1428 }
1429
1430 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1431                             struct mpath_info *pinfo)
1432 {
1433         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1434
1435         if (next_hop_sta)
1436                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1437         else
1438                 memset(next_hop, 0, ETH_ALEN);
1439
1440         memset(pinfo, 0, sizeof(*pinfo));
1441
1442         pinfo->generation = mesh_paths_generation;
1443
1444         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1445                         MPATH_INFO_SN |
1446                         MPATH_INFO_METRIC |
1447                         MPATH_INFO_EXPTIME |
1448                         MPATH_INFO_DISCOVERY_TIMEOUT |
1449                         MPATH_INFO_DISCOVERY_RETRIES |
1450                         MPATH_INFO_FLAGS;
1451
1452         pinfo->frame_qlen = mpath->frame_queue.qlen;
1453         pinfo->sn = mpath->sn;
1454         pinfo->metric = mpath->metric;
1455         if (time_before(jiffies, mpath->exp_time))
1456                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1457         pinfo->discovery_timeout =
1458                         jiffies_to_msecs(mpath->discovery_timeout);
1459         pinfo->discovery_retries = mpath->discovery_retries;
1460         if (mpath->flags & MESH_PATH_ACTIVE)
1461                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1462         if (mpath->flags & MESH_PATH_RESOLVING)
1463                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1464         if (mpath->flags & MESH_PATH_SN_VALID)
1465                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1466         if (mpath->flags & MESH_PATH_FIXED)
1467                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1468         if (mpath->flags & MESH_PATH_RESOLVED)
1469                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1470 }
1471
1472 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1473                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1474
1475 {
1476         struct ieee80211_sub_if_data *sdata;
1477         struct mesh_path *mpath;
1478
1479         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1480
1481         rcu_read_lock();
1482         mpath = mesh_path_lookup(sdata, dst);
1483         if (!mpath) {
1484                 rcu_read_unlock();
1485                 return -ENOENT;
1486         }
1487         memcpy(dst, mpath->dst, ETH_ALEN);
1488         mpath_set_pinfo(mpath, next_hop, pinfo);
1489         rcu_read_unlock();
1490         return 0;
1491 }
1492
1493 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1494                                 int idx, u8 *dst, u8 *next_hop,
1495                                 struct mpath_info *pinfo)
1496 {
1497         struct ieee80211_sub_if_data *sdata;
1498         struct mesh_path *mpath;
1499
1500         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1501
1502         rcu_read_lock();
1503         mpath = mesh_path_lookup_by_idx(sdata, idx);
1504         if (!mpath) {
1505                 rcu_read_unlock();
1506                 return -ENOENT;
1507         }
1508         memcpy(dst, mpath->dst, ETH_ALEN);
1509         mpath_set_pinfo(mpath, next_hop, pinfo);
1510         rcu_read_unlock();
1511         return 0;
1512 }
1513
1514 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1515                                 struct net_device *dev,
1516                                 struct mesh_config *conf)
1517 {
1518         struct ieee80211_sub_if_data *sdata;
1519         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1520
1521         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1522         return 0;
1523 }
1524
1525 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1526 {
1527         return (mask >> (parm-1)) & 0x1;
1528 }
1529
1530 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1531                 const struct mesh_setup *setup)
1532 {
1533         u8 *new_ie;
1534         const u8 *old_ie;
1535         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1536                                         struct ieee80211_sub_if_data, u.mesh);
1537
1538         /* allocate information elements */
1539         new_ie = NULL;
1540         old_ie = ifmsh->ie;
1541
1542         if (setup->ie_len) {
1543                 new_ie = kmemdup(setup->ie, setup->ie_len,
1544                                 GFP_KERNEL);
1545                 if (!new_ie)
1546                         return -ENOMEM;
1547         }
1548         ifmsh->ie_len = setup->ie_len;
1549         ifmsh->ie = new_ie;
1550         kfree(old_ie);
1551
1552         /* now copy the rest of the setup parameters */
1553         ifmsh->mesh_id_len = setup->mesh_id_len;
1554         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1555         ifmsh->mesh_sp_id = setup->sync_method;
1556         ifmsh->mesh_pp_id = setup->path_sel_proto;
1557         ifmsh->mesh_pm_id = setup->path_metric;
1558         ifmsh->user_mpm = setup->user_mpm;
1559         ifmsh->mesh_auth_id = setup->auth_id;
1560         ifmsh->security = IEEE80211_MESH_SEC_NONE;
1561         if (setup->is_authenticated)
1562                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1563         if (setup->is_secure)
1564                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1565
1566         /* mcast rate setting in Mesh Node */
1567         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1568                                                 sizeof(setup->mcast_rate));
1569         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1570
1571         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1572         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1573
1574         return 0;
1575 }
1576
1577 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1578                                         struct net_device *dev, u32 mask,
1579                                         const struct mesh_config *nconf)
1580 {
1581         struct mesh_config *conf;
1582         struct ieee80211_sub_if_data *sdata;
1583         struct ieee80211_if_mesh *ifmsh;
1584
1585         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1586         ifmsh = &sdata->u.mesh;
1587
1588         /* Set the config options which we are interested in setting */
1589         conf = &(sdata->u.mesh.mshcfg);
1590         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1591                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1592         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1593                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1594         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1595                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1596         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1597                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1598         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1599                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1600         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1601                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1602         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1603                 conf->element_ttl = nconf->element_ttl;
1604         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1605                 if (ifmsh->user_mpm)
1606                         return -EBUSY;
1607                 conf->auto_open_plinks = nconf->auto_open_plinks;
1608         }
1609         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1610                 conf->dot11MeshNbrOffsetMaxNeighbor =
1611                         nconf->dot11MeshNbrOffsetMaxNeighbor;
1612         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1613                 conf->dot11MeshHWMPmaxPREQretries =
1614                         nconf->dot11MeshHWMPmaxPREQretries;
1615         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1616                 conf->path_refresh_time = nconf->path_refresh_time;
1617         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1618                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1619         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1620                 conf->dot11MeshHWMPactivePathTimeout =
1621                         nconf->dot11MeshHWMPactivePathTimeout;
1622         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1623                 conf->dot11MeshHWMPpreqMinInterval =
1624                         nconf->dot11MeshHWMPpreqMinInterval;
1625         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1626                 conf->dot11MeshHWMPperrMinInterval =
1627                         nconf->dot11MeshHWMPperrMinInterval;
1628         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1629                            mask))
1630                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1631                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1632         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1633                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1634                 ieee80211_mesh_root_setup(ifmsh);
1635         }
1636         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1637                 /* our current gate announcement implementation rides on root
1638                  * announcements, so require this ifmsh to also be a root node
1639                  * */
1640                 if (nconf->dot11MeshGateAnnouncementProtocol &&
1641                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1642                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1643                         ieee80211_mesh_root_setup(ifmsh);
1644                 }
1645                 conf->dot11MeshGateAnnouncementProtocol =
1646                         nconf->dot11MeshGateAnnouncementProtocol;
1647         }
1648         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1649                 conf->dot11MeshHWMPRannInterval =
1650                         nconf->dot11MeshHWMPRannInterval;
1651         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1652                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1653         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1654                 /* our RSSI threshold implementation is supported only for
1655                  * devices that report signal in dBm.
1656                  */
1657                 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1658                         return -ENOTSUPP;
1659                 conf->rssi_threshold = nconf->rssi_threshold;
1660         }
1661         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1662                 conf->ht_opmode = nconf->ht_opmode;
1663                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1664                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1665         }
1666         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1667                 conf->dot11MeshHWMPactivePathToRootTimeout =
1668                         nconf->dot11MeshHWMPactivePathToRootTimeout;
1669         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1670                 conf->dot11MeshHWMProotInterval =
1671                         nconf->dot11MeshHWMProotInterval;
1672         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1673                 conf->dot11MeshHWMPconfirmationInterval =
1674                         nconf->dot11MeshHWMPconfirmationInterval;
1675         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1676                 conf->power_mode = nconf->power_mode;
1677                 ieee80211_mps_local_status_update(sdata);
1678         }
1679         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1680                 conf->dot11MeshAwakeWindowDuration =
1681                         nconf->dot11MeshAwakeWindowDuration;
1682         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1683                 conf->plink_timeout = nconf->plink_timeout;
1684         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1685         return 0;
1686 }
1687
1688 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1689                                const struct mesh_config *conf,
1690                                const struct mesh_setup *setup)
1691 {
1692         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1693         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1694         int err;
1695
1696         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1697         err = copy_mesh_setup(ifmsh, setup);
1698         if (err)
1699                 return err;
1700
1701         /* can mesh use other SMPS modes? */
1702         sdata->smps_mode = IEEE80211_SMPS_OFF;
1703         sdata->needed_rx_chains = sdata->local->rx_chains;
1704
1705         mutex_lock(&sdata->local->mtx);
1706         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1707                                         IEEE80211_CHANCTX_SHARED);
1708         mutex_unlock(&sdata->local->mtx);
1709         if (err)
1710                 return err;
1711
1712         return ieee80211_start_mesh(sdata);
1713 }
1714
1715 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1716 {
1717         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1718
1719         ieee80211_stop_mesh(sdata);
1720         mutex_lock(&sdata->local->mtx);
1721         ieee80211_vif_release_channel(sdata);
1722         mutex_unlock(&sdata->local->mtx);
1723
1724         return 0;
1725 }
1726 #endif
1727
1728 static int ieee80211_change_bss(struct wiphy *wiphy,
1729                                 struct net_device *dev,
1730                                 struct bss_parameters *params)
1731 {
1732         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1733         enum ieee80211_band band;
1734         u32 changed = 0;
1735
1736         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1737                 return -ENOENT;
1738
1739         band = ieee80211_get_sdata_band(sdata);
1740
1741         if (params->use_cts_prot >= 0) {
1742                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1743                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1744         }
1745         if (params->use_short_preamble >= 0) {
1746                 sdata->vif.bss_conf.use_short_preamble =
1747                         params->use_short_preamble;
1748                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1749         }
1750
1751         if (!sdata->vif.bss_conf.use_short_slot &&
1752             band == IEEE80211_BAND_5GHZ) {
1753                 sdata->vif.bss_conf.use_short_slot = true;
1754                 changed |= BSS_CHANGED_ERP_SLOT;
1755         }
1756
1757         if (params->use_short_slot_time >= 0) {
1758                 sdata->vif.bss_conf.use_short_slot =
1759                         params->use_short_slot_time;
1760                 changed |= BSS_CHANGED_ERP_SLOT;
1761         }
1762
1763         if (params->basic_rates) {
1764                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1765                                          wiphy->bands[band],
1766                                          params->basic_rates,
1767                                          params->basic_rates_len,
1768                                          &sdata->vif.bss_conf.basic_rates);
1769                 changed |= BSS_CHANGED_BASIC_RATES;
1770         }
1771
1772         if (params->ap_isolate >= 0) {
1773                 if (params->ap_isolate)
1774                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1775                 else
1776                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1777         }
1778
1779         if (params->ht_opmode >= 0) {
1780                 sdata->vif.bss_conf.ht_operation_mode =
1781                         (u16) params->ht_opmode;
1782                 changed |= BSS_CHANGED_HT;
1783         }
1784
1785         if (params->p2p_ctwindow >= 0) {
1786                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1787                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1788                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1789                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1790                 changed |= BSS_CHANGED_P2P_PS;
1791         }
1792
1793         if (params->p2p_opp_ps > 0) {
1794                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1795                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1796                 changed |= BSS_CHANGED_P2P_PS;
1797         } else if (params->p2p_opp_ps == 0) {
1798                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1799                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
1800                 changed |= BSS_CHANGED_P2P_PS;
1801         }
1802
1803         ieee80211_bss_info_change_notify(sdata, changed);
1804
1805         return 0;
1806 }
1807
1808 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1809                                     struct net_device *dev,
1810                                     struct ieee80211_txq_params *params)
1811 {
1812         struct ieee80211_local *local = wiphy_priv(wiphy);
1813         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1814         struct ieee80211_tx_queue_params p;
1815
1816         if (!local->ops->conf_tx)
1817                 return -EOPNOTSUPP;
1818
1819         if (local->hw.queues < IEEE80211_NUM_ACS)
1820                 return -EOPNOTSUPP;
1821
1822         memset(&p, 0, sizeof(p));
1823         p.aifs = params->aifs;
1824         p.cw_max = params->cwmax;
1825         p.cw_min = params->cwmin;
1826         p.txop = params->txop;
1827
1828         /*
1829          * Setting tx queue params disables u-apsd because it's only
1830          * called in master mode.
1831          */
1832         p.uapsd = false;
1833
1834         sdata->tx_conf[params->ac] = p;
1835         if (drv_conf_tx(local, sdata, params->ac, &p)) {
1836                 wiphy_debug(local->hw.wiphy,
1837                             "failed to set TX queue parameters for AC %d\n",
1838                             params->ac);
1839                 return -EINVAL;
1840         }
1841
1842         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1843
1844         return 0;
1845 }
1846
1847 #ifdef CONFIG_PM
1848 static int ieee80211_suspend(struct wiphy *wiphy,
1849                              struct cfg80211_wowlan *wowlan)
1850 {
1851         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1852 }
1853
1854 static int ieee80211_resume(struct wiphy *wiphy)
1855 {
1856         return __ieee80211_resume(wiphy_priv(wiphy));
1857 }
1858 #else
1859 #define ieee80211_suspend NULL
1860 #define ieee80211_resume NULL
1861 #endif
1862
1863 static int ieee80211_scan(struct wiphy *wiphy,
1864                           struct cfg80211_scan_request *req)
1865 {
1866         struct ieee80211_sub_if_data *sdata;
1867
1868         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
1869
1870         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1871         case NL80211_IFTYPE_STATION:
1872         case NL80211_IFTYPE_ADHOC:
1873         case NL80211_IFTYPE_MESH_POINT:
1874         case NL80211_IFTYPE_P2P_CLIENT:
1875         case NL80211_IFTYPE_P2P_DEVICE:
1876                 break;
1877         case NL80211_IFTYPE_P2P_GO:
1878                 if (sdata->local->ops->hw_scan)
1879                         break;
1880                 /*
1881                  * FIXME: implement NoA while scanning in software,
1882                  * for now fall through to allow scanning only when
1883                  * beaconing hasn't been configured yet
1884                  */
1885         case NL80211_IFTYPE_AP:
1886                 /*
1887                  * If the scan has been forced (and the driver supports
1888                  * forcing), don't care about being beaconing already.
1889                  * This will create problems to the attached stations (e.g. all
1890                  * the  frames sent while scanning on other channel will be
1891                  * lost)
1892                  */
1893                 if (sdata->u.ap.beacon &&
1894                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1895                      !(req->flags & NL80211_SCAN_FLAG_AP)))
1896                         return -EOPNOTSUPP;
1897                 break;
1898         default:
1899                 return -EOPNOTSUPP;
1900         }
1901
1902         return ieee80211_request_scan(sdata, req);
1903 }
1904
1905 static int
1906 ieee80211_sched_scan_start(struct wiphy *wiphy,
1907                            struct net_device *dev,
1908                            struct cfg80211_sched_scan_request *req)
1909 {
1910         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1911
1912         if (!sdata->local->ops->sched_scan_start)
1913                 return -EOPNOTSUPP;
1914
1915         return ieee80211_request_sched_scan_start(sdata, req);
1916 }
1917
1918 static int
1919 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1920 {
1921         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1922
1923         if (!sdata->local->ops->sched_scan_stop)
1924                 return -EOPNOTSUPP;
1925
1926         return ieee80211_request_sched_scan_stop(sdata);
1927 }
1928
1929 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1930                           struct cfg80211_auth_request *req)
1931 {
1932         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1933 }
1934
1935 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1936                            struct cfg80211_assoc_request *req)
1937 {
1938         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1939 }
1940
1941 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1942                             struct cfg80211_deauth_request *req)
1943 {
1944         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1945 }
1946
1947 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1948                               struct cfg80211_disassoc_request *req)
1949 {
1950         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1951 }
1952
1953 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1954                                struct cfg80211_ibss_params *params)
1955 {
1956         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
1957 }
1958
1959 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1960 {
1961         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
1962 }
1963
1964 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
1965                                     int rate[IEEE80211_NUM_BANDS])
1966 {
1967         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1968
1969         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
1970                sizeof(int) * IEEE80211_NUM_BANDS);
1971
1972         return 0;
1973 }
1974
1975 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1976 {
1977         struct ieee80211_local *local = wiphy_priv(wiphy);
1978         int err;
1979
1980         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1981                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1982
1983                 if (err)
1984                         return err;
1985         }
1986
1987         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1988                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1989
1990                 if (err)
1991                         return err;
1992         }
1993
1994         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1995                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1996
1997                 if (err)
1998                         return err;
1999         }
2000
2001         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2002                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2003                         return -EINVAL;
2004                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2005         }
2006         if (changed & WIPHY_PARAM_RETRY_LONG) {
2007                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2008                         return -EINVAL;
2009                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2010         }
2011         if (changed &
2012             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2013                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2014
2015         return 0;
2016 }
2017
2018 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2019                                   struct wireless_dev *wdev,
2020                                   enum nl80211_tx_power_setting type, int mbm)
2021 {
2022         struct ieee80211_local *local = wiphy_priv(wiphy);
2023         struct ieee80211_sub_if_data *sdata;
2024
2025         if (wdev) {
2026                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2027
2028                 switch (type) {
2029                 case NL80211_TX_POWER_AUTOMATIC:
2030                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2031                         break;
2032                 case NL80211_TX_POWER_LIMITED:
2033                 case NL80211_TX_POWER_FIXED:
2034                         if (mbm < 0 || (mbm % 100))
2035                                 return -EOPNOTSUPP;
2036                         sdata->user_power_level = MBM_TO_DBM(mbm);
2037                         break;
2038                 }
2039
2040                 ieee80211_recalc_txpower(sdata);
2041
2042                 return 0;
2043         }
2044
2045         switch (type) {
2046         case NL80211_TX_POWER_AUTOMATIC:
2047                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2048                 break;
2049         case NL80211_TX_POWER_LIMITED:
2050         case NL80211_TX_POWER_FIXED:
2051                 if (mbm < 0 || (mbm % 100))
2052                         return -EOPNOTSUPP;
2053                 local->user_power_level = MBM_TO_DBM(mbm);
2054                 break;
2055         }
2056
2057         mutex_lock(&local->iflist_mtx);
2058         list_for_each_entry(sdata, &local->interfaces, list)
2059                 sdata->user_power_level = local->user_power_level;
2060         list_for_each_entry(sdata, &local->interfaces, list)
2061                 ieee80211_recalc_txpower(sdata);
2062         mutex_unlock(&local->iflist_mtx);
2063
2064         return 0;
2065 }
2066
2067 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2068                                   struct wireless_dev *wdev,
2069                                   int *dbm)
2070 {
2071         struct ieee80211_local *local = wiphy_priv(wiphy);
2072         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2073
2074         if (!local->use_chanctx)
2075                 *dbm = local->hw.conf.power_level;
2076         else
2077                 *dbm = sdata->vif.bss_conf.txpower;
2078
2079         return 0;
2080 }
2081
2082 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2083                                   const u8 *addr)
2084 {
2085         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2086
2087         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2088
2089         return 0;
2090 }
2091
2092 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2093 {
2094         struct ieee80211_local *local = wiphy_priv(wiphy);
2095
2096         drv_rfkill_poll(local);
2097 }
2098
2099 #ifdef CONFIG_NL80211_TESTMODE
2100 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2101                                   struct wireless_dev *wdev,
2102                                   void *data, int len)
2103 {
2104         struct ieee80211_local *local = wiphy_priv(wiphy);
2105         struct ieee80211_vif *vif = NULL;
2106
2107         if (!local->ops->testmode_cmd)
2108                 return -EOPNOTSUPP;
2109
2110         if (wdev) {
2111                 struct ieee80211_sub_if_data *sdata;
2112
2113                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2114                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2115                         vif = &sdata->vif;
2116         }
2117
2118         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2119 }
2120
2121 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2122                                    struct sk_buff *skb,
2123                                    struct netlink_callback *cb,
2124                                    void *data, int len)
2125 {
2126         struct ieee80211_local *local = wiphy_priv(wiphy);
2127
2128         if (!local->ops->testmode_dump)
2129                 return -EOPNOTSUPP;
2130
2131         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2132 }
2133 #endif
2134
2135 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2136                                 enum ieee80211_smps_mode smps_mode)
2137 {
2138         struct sta_info *sta;
2139         enum ieee80211_smps_mode old_req;
2140         int i;
2141
2142         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2143                 return -EINVAL;
2144
2145         if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2146                 return 0;
2147
2148         old_req = sdata->u.ap.req_smps;
2149         sdata->u.ap.req_smps = smps_mode;
2150
2151         /* AUTOMATIC doesn't mean much for AP - don't allow it */
2152         if (old_req == smps_mode ||
2153             smps_mode == IEEE80211_SMPS_AUTOMATIC)
2154                 return 0;
2155
2156          /* If no associated stations, there's no need to do anything */
2157         if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2158                 sdata->smps_mode = smps_mode;
2159                 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2160                 return 0;
2161         }
2162
2163         ht_dbg(sdata,
2164                "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2165                smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2166
2167         mutex_lock(&sdata->local->sta_mtx);
2168         for (i = 0; i < STA_HASH_SIZE; i++) {
2169                 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2170                                 lockdep_is_held(&sdata->local->sta_mtx));
2171                      sta;
2172                      sta = rcu_dereference_protected(sta->hnext,
2173                                 lockdep_is_held(&sdata->local->sta_mtx))) {
2174                         /*
2175                          * Only stations associated to our AP and
2176                          * associated VLANs
2177                          */
2178                         if (sta->sdata->bss != &sdata->u.ap)
2179                                 continue;
2180
2181                         /* This station doesn't support MIMO - skip it */
2182                         if (sta_info_tx_streams(sta) == 1)
2183                                 continue;
2184
2185                         /*
2186                          * Don't wake up a STA just to send the action frame
2187                          * unless we are getting more restrictive.
2188                          */
2189                         if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2190                             !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2191                                                            smps_mode)) {
2192                                 ht_dbg(sdata,
2193                                        "Won't send SMPS to sleeping STA %pM\n",
2194                                        sta->sta.addr);
2195                                 continue;
2196                         }
2197
2198                         /*
2199                          * If the STA is not authorized, wait until it gets
2200                          * authorized and the action frame will be sent then.
2201                          */
2202                         if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2203                                 continue;
2204
2205                         ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2206                         ieee80211_send_smps_action(sdata, smps_mode,
2207                                                    sta->sta.addr,
2208                                                    sdata->vif.bss_conf.bssid);
2209                 }
2210         }
2211         mutex_unlock(&sdata->local->sta_mtx);
2212
2213         sdata->smps_mode = smps_mode;
2214         ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2215
2216         return 0;
2217 }
2218
2219 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2220                                  enum ieee80211_smps_mode smps_mode)
2221 {
2222         const u8 *ap;
2223         enum ieee80211_smps_mode old_req;
2224         int err;
2225
2226         lockdep_assert_held(&sdata->wdev.mtx);
2227
2228         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2229                 return -EINVAL;
2230
2231         old_req = sdata->u.mgd.req_smps;
2232         sdata->u.mgd.req_smps = smps_mode;
2233
2234         if (old_req == smps_mode &&
2235             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2236                 return 0;
2237
2238         /*
2239          * If not associated, or current association is not an HT
2240          * association, there's no need to do anything, just store
2241          * the new value until we associate.
2242          */
2243         if (!sdata->u.mgd.associated ||
2244             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2245                 return 0;
2246
2247         ap = sdata->u.mgd.associated->bssid;
2248
2249         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2250                 if (sdata->u.mgd.powersave)
2251                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2252                 else
2253                         smps_mode = IEEE80211_SMPS_OFF;
2254         }
2255
2256         /* send SM PS frame to AP */
2257         err = ieee80211_send_smps_action(sdata, smps_mode,
2258                                          ap, ap);
2259         if (err)
2260                 sdata->u.mgd.req_smps = old_req;
2261
2262         return err;
2263 }
2264
2265 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2266                                     bool enabled, int timeout)
2267 {
2268         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2269         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2270
2271         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2272                 return -EOPNOTSUPP;
2273
2274         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2275                 return -EOPNOTSUPP;
2276
2277         if (enabled == sdata->u.mgd.powersave &&
2278             timeout == local->dynamic_ps_forced_timeout)
2279                 return 0;
2280
2281         sdata->u.mgd.powersave = enabled;
2282         local->dynamic_ps_forced_timeout = timeout;
2283
2284         /* no change, but if automatic follow powersave */
2285         sdata_lock(sdata);
2286         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2287         sdata_unlock(sdata);
2288
2289         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2290                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2291
2292         ieee80211_recalc_ps(local, -1);
2293         ieee80211_recalc_ps_vif(sdata);
2294
2295         return 0;
2296 }
2297
2298 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2299                                          struct net_device *dev,
2300                                          s32 rssi_thold, u32 rssi_hyst)
2301 {
2302         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2303         struct ieee80211_vif *vif = &sdata->vif;
2304         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2305
2306         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2307             rssi_hyst == bss_conf->cqm_rssi_hyst)
2308                 return 0;
2309
2310         bss_conf->cqm_rssi_thold = rssi_thold;
2311         bss_conf->cqm_rssi_hyst = rssi_hyst;
2312
2313         /* tell the driver upon association, unless already associated */
2314         if (sdata->u.mgd.associated &&
2315             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2316                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2317
2318         return 0;
2319 }
2320
2321 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2322                                       struct net_device *dev,
2323                                       const u8 *addr,
2324                                       const struct cfg80211_bitrate_mask *mask)
2325 {
2326         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2327         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2328         int i, ret;
2329
2330         if (!ieee80211_sdata_running(sdata))
2331                 return -ENETDOWN;
2332
2333         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2334                 ret = drv_set_bitrate_mask(local, sdata, mask);
2335                 if (ret)
2336                         return ret;
2337         }
2338
2339         for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2340                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2341                 int j;
2342
2343                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2344                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2345                        sizeof(mask->control[i].ht_mcs));
2346
2347                 sdata->rc_has_mcs_mask[i] = false;
2348                 if (!sband)
2349                         continue;
2350
2351                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2352                         if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2353                                 sdata->rc_has_mcs_mask[i] = true;
2354                                 break;
2355                         }
2356         }
2357
2358         return 0;
2359 }
2360
2361 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2362                                     struct ieee80211_sub_if_data *sdata,
2363                                     struct ieee80211_channel *channel,
2364                                     unsigned int duration, u64 *cookie,
2365                                     struct sk_buff *txskb,
2366                                     enum ieee80211_roc_type type)
2367 {
2368         struct ieee80211_roc_work *roc, *tmp;
2369         bool queued = false;
2370         int ret;
2371
2372         lockdep_assert_held(&local->mtx);
2373
2374         if (local->use_chanctx && !local->ops->remain_on_channel)
2375                 return -EOPNOTSUPP;
2376
2377         roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2378         if (!roc)
2379                 return -ENOMEM;
2380
2381         /*
2382          * If the duration is zero, then the driver
2383          * wouldn't actually do anything. Set it to
2384          * 10 for now.
2385          *
2386          * TODO: cancel the off-channel operation
2387          *       when we get the SKB's TX status and
2388          *       the wait time was zero before.
2389          */
2390         if (!duration)
2391                 duration = 10;
2392
2393         roc->chan = channel;
2394         roc->duration = duration;
2395         roc->req_duration = duration;
2396         roc->frame = txskb;
2397         roc->type = type;
2398         roc->mgmt_tx_cookie = (unsigned long)txskb;
2399         roc->sdata = sdata;
2400         INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2401         INIT_LIST_HEAD(&roc->dependents);
2402
2403         /*
2404          * cookie is either the roc cookie (for normal roc)
2405          * or the SKB (for mgmt TX)
2406          */
2407         if (!txskb) {
2408                 /* local->mtx protects this */
2409                 local->roc_cookie_counter++;
2410                 roc->cookie = local->roc_cookie_counter;
2411                 /* wow, you wrapped 64 bits ... more likely a bug */
2412                 if (WARN_ON(roc->cookie == 0)) {
2413                         roc->cookie = 1;
2414                         local->roc_cookie_counter++;
2415                 }
2416                 *cookie = roc->cookie;
2417         } else {
2418                 *cookie = (unsigned long)txskb;
2419         }
2420
2421         /* if there's one pending or we're scanning, queue this one */
2422         if (!list_empty(&local->roc_list) ||
2423             local->scanning || local->radar_detect_enabled)
2424                 goto out_check_combine;
2425
2426         /* if not HW assist, just queue & schedule work */
2427         if (!local->ops->remain_on_channel) {
2428                 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2429                 goto out_queue;
2430         }
2431
2432         /* otherwise actually kick it off here (for error handling) */
2433
2434         ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2435         if (ret) {
2436                 kfree(roc);
2437                 return ret;
2438         }
2439
2440         roc->started = true;
2441         goto out_queue;
2442
2443  out_check_combine:
2444         list_for_each_entry(tmp, &local->roc_list, list) {
2445                 if (tmp->chan != channel || tmp->sdata != sdata)
2446                         continue;
2447
2448                 /*
2449                  * Extend this ROC if possible:
2450                  *
2451                  * If it hasn't started yet, just increase the duration
2452                  * and add the new one to the list of dependents.
2453                  * If the type of the new ROC has higher priority, modify the
2454                  * type of the previous one to match that of the new one.
2455                  */
2456                 if (!tmp->started) {
2457                         list_add_tail(&roc->list, &tmp->dependents);
2458                         tmp->duration = max(tmp->duration, roc->duration);
2459                         tmp->type = max(tmp->type, roc->type);
2460                         queued = true;
2461                         break;
2462                 }
2463
2464                 /* If it has already started, it's more difficult ... */
2465                 if (local->ops->remain_on_channel) {
2466                         unsigned long j = jiffies;
2467
2468                         /*
2469                          * In the offloaded ROC case, if it hasn't begun, add
2470                          * this new one to the dependent list to be handled
2471                          * when the master one begins. If it has begun,
2472                          * check that there's still a minimum time left and
2473                          * if so, start this one, transmitting the frame, but
2474                          * add it to the list directly after this one with
2475                          * a reduced time so we'll ask the driver to execute
2476                          * it right after finishing the previous one, in the
2477                          * hope that it'll also be executed right afterwards,
2478                          * effectively extending the old one.
2479                          * If there's no minimum time left, just add it to the
2480                          * normal list.
2481                          * TODO: the ROC type is ignored here, assuming that it
2482                          * is better to immediately use the current ROC.
2483                          */
2484                         if (!tmp->hw_begun) {
2485                                 list_add_tail(&roc->list, &tmp->dependents);
2486                                 queued = true;
2487                                 break;
2488                         }
2489
2490                         if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2491                                         tmp->hw_start_time +
2492                                         msecs_to_jiffies(tmp->duration))) {
2493                                 int new_dur;
2494
2495                                 ieee80211_handle_roc_started(roc);
2496
2497                                 new_dur = roc->duration -
2498                                           jiffies_to_msecs(tmp->hw_start_time +
2499                                                            msecs_to_jiffies(
2500                                                                 tmp->duration) -
2501                                                            j);
2502
2503                                 if (new_dur > 0) {
2504                                         /* add right after tmp */
2505                                         list_add(&roc->list, &tmp->list);
2506                                 } else {
2507                                         list_add_tail(&roc->list,
2508                                                       &tmp->dependents);
2509                                 }
2510                                 queued = true;
2511                         }
2512                 } else if (del_timer_sync(&tmp->work.timer)) {
2513                         unsigned long new_end;
2514
2515                         /*
2516                          * In the software ROC case, cancel the timer, if
2517                          * that fails then the finish work is already
2518                          * queued/pending and thus we queue the new ROC
2519                          * normally, if that succeeds then we can extend
2520                          * the timer duration and TX the frame (if any.)
2521                          */
2522
2523                         list_add_tail(&roc->list, &tmp->dependents);
2524                         queued = true;
2525
2526                         new_end = jiffies + msecs_to_jiffies(roc->duration);
2527
2528                         /* ok, it was started & we canceled timer */
2529                         if (time_after(new_end, tmp->work.timer.expires))
2530                                 mod_timer(&tmp->work.timer, new_end);
2531                         else
2532                                 add_timer(&tmp->work.timer);
2533
2534                         ieee80211_handle_roc_started(roc);
2535                 }
2536                 break;
2537         }
2538
2539  out_queue:
2540         if (!queued)
2541                 list_add_tail(&roc->list, &local->roc_list);
2542
2543         return 0;
2544 }
2545
2546 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2547                                        struct wireless_dev *wdev,
2548                                        struct ieee80211_channel *chan,
2549                                        unsigned int duration,
2550                                        u64 *cookie)
2551 {
2552         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2553         struct ieee80211_local *local = sdata->local;
2554         int ret;
2555
2556         mutex_lock(&local->mtx);
2557         ret = ieee80211_start_roc_work(local, sdata, chan,
2558                                        duration, cookie, NULL,
2559                                        IEEE80211_ROC_TYPE_NORMAL);
2560         mutex_unlock(&local->mtx);
2561
2562         return ret;
2563 }
2564
2565 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2566                                 u64 cookie, bool mgmt_tx)
2567 {
2568         struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2569         int ret;
2570
2571         mutex_lock(&local->mtx);
2572         list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2573                 struct ieee80211_roc_work *dep, *tmp2;
2574
2575                 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2576                         if (!mgmt_tx && dep->cookie != cookie)
2577                                 continue;
2578                         else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2579                                 continue;
2580                         /* found dependent item -- just remove it */
2581                         list_del(&dep->list);
2582                         mutex_unlock(&local->mtx);
2583
2584                         ieee80211_roc_notify_destroy(dep, true);
2585                         return 0;
2586                 }
2587
2588                 if (!mgmt_tx && roc->cookie != cookie)
2589                         continue;
2590                 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2591                         continue;
2592
2593                 found = roc;
2594                 break;
2595         }
2596
2597         if (!found) {
2598                 mutex_unlock(&local->mtx);
2599                 return -ENOENT;
2600         }
2601
2602         /*
2603          * We found the item to cancel, so do that. Note that it
2604          * may have dependents, which we also cancel (and send
2605          * the expired signal for.) Not doing so would be quite
2606          * tricky here, but we may need to fix it later.
2607          */
2608
2609         if (local->ops->remain_on_channel) {
2610                 if (found->started) {
2611                         ret = drv_cancel_remain_on_channel(local);
2612                         if (WARN_ON_ONCE(ret)) {
2613                                 mutex_unlock(&local->mtx);
2614                                 return ret;
2615                         }
2616                 }
2617
2618                 list_del(&found->list);
2619
2620                 if (found->started)
2621                         ieee80211_start_next_roc(local);
2622                 mutex_unlock(&local->mtx);
2623
2624                 ieee80211_roc_notify_destroy(found, true);
2625         } else {
2626                 /* work may be pending so use it all the time */
2627                 found->abort = true;
2628                 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2629
2630                 mutex_unlock(&local->mtx);
2631
2632                 /* work will clean up etc */
2633                 flush_delayed_work(&found->work);
2634                 WARN_ON(!found->to_be_freed);
2635                 kfree(found);
2636         }
2637
2638         return 0;
2639 }
2640
2641 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2642                                               struct wireless_dev *wdev,
2643                                               u64 cookie)
2644 {
2645         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2646         struct ieee80211_local *local = sdata->local;
2647
2648         return ieee80211_cancel_roc(local, cookie, false);
2649 }
2650
2651 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2652                                            struct net_device *dev,
2653                                            struct cfg80211_chan_def *chandef,
2654                                            u32 cac_time_ms)
2655 {
2656         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2657         struct ieee80211_local *local = sdata->local;
2658         int err;
2659
2660         mutex_lock(&local->mtx);
2661         if (!list_empty(&local->roc_list) || local->scanning) {
2662                 err = -EBUSY;
2663                 goto out_unlock;
2664         }
2665
2666         /* whatever, but channel contexts should not complain about that one */
2667         sdata->smps_mode = IEEE80211_SMPS_OFF;
2668         sdata->needed_rx_chains = local->rx_chains;
2669
2670         err = ieee80211_vif_use_channel(sdata, chandef,
2671                                         IEEE80211_CHANCTX_SHARED);
2672         if (err)
2673                 goto out_unlock;
2674
2675         ieee80211_queue_delayed_work(&sdata->local->hw,
2676                                      &sdata->dfs_cac_timer_work,
2677                                      msecs_to_jiffies(cac_time_ms));
2678
2679  out_unlock:
2680         mutex_unlock(&local->mtx);
2681         return err;
2682 }
2683
2684 static struct cfg80211_beacon_data *
2685 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2686 {
2687         struct cfg80211_beacon_data *new_beacon;
2688         u8 *pos;
2689         int len;
2690
2691         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2692               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2693               beacon->probe_resp_len;
2694
2695         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2696         if (!new_beacon)
2697                 return NULL;
2698
2699         pos = (u8 *)(new_beacon + 1);
2700         if (beacon->head_len) {
2701                 new_beacon->head_len = beacon->head_len;
2702                 new_beacon->head = pos;
2703                 memcpy(pos, beacon->head, beacon->head_len);
2704                 pos += beacon->head_len;
2705         }
2706         if (beacon->tail_len) {
2707                 new_beacon->tail_len = beacon->tail_len;
2708                 new_beacon->tail = pos;
2709                 memcpy(pos, beacon->tail, beacon->tail_len);
2710                 pos += beacon->tail_len;
2711         }
2712         if (beacon->beacon_ies_len) {
2713                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2714                 new_beacon->beacon_ies = pos;
2715                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2716                 pos += beacon->beacon_ies_len;
2717         }
2718         if (beacon->proberesp_ies_len) {
2719                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2720                 new_beacon->proberesp_ies = pos;
2721                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2722                 pos += beacon->proberesp_ies_len;
2723         }
2724         if (beacon->assocresp_ies_len) {
2725                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2726                 new_beacon->assocresp_ies = pos;
2727                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2728                 pos += beacon->assocresp_ies_len;
2729         }
2730         if (beacon->probe_resp_len) {
2731                 new_beacon->probe_resp_len = beacon->probe_resp_len;
2732                 beacon->probe_resp = pos;
2733                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2734                 pos += beacon->probe_resp_len;
2735         }
2736
2737         return new_beacon;
2738 }
2739
2740 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2741 {
2742         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2743
2744         ieee80211_queue_work(&sdata->local->hw,
2745                              &sdata->csa_finalize_work);
2746 }
2747 EXPORT_SYMBOL(ieee80211_csa_finish);
2748
2749 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2750                                           u32 *changed)
2751 {
2752         int err;
2753
2754         switch (sdata->vif.type) {
2755         case NL80211_IFTYPE_AP:
2756                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2757                                               NULL);
2758                 kfree(sdata->u.ap.next_beacon);
2759                 sdata->u.ap.next_beacon = NULL;
2760
2761                 if (err < 0)
2762                         return err;
2763                 *changed |= err;
2764                 break;
2765         case NL80211_IFTYPE_ADHOC:
2766                 err = ieee80211_ibss_finish_csa(sdata);
2767                 if (err < 0)
2768                         return err;
2769                 *changed |= err;
2770                 break;
2771 #ifdef CONFIG_MAC80211_MESH
2772         case NL80211_IFTYPE_MESH_POINT:
2773                 err = ieee80211_mesh_finish_csa(sdata);
2774                 if (err < 0)
2775                         return err;
2776                 *changed |= err;
2777                 break;
2778 #endif
2779         default:
2780                 WARN_ON(1);
2781                 return -EINVAL;
2782         }
2783
2784         return 0;
2785 }
2786
2787 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2788 {
2789         struct ieee80211_local *local = sdata->local;
2790         u32 changed = 0;
2791         int err;
2792
2793         sdata_assert_lock(sdata);
2794         lockdep_assert_held(&local->mtx);
2795         lockdep_assert_held(&local->chanctx_mtx);
2796
2797         /*
2798          * using reservation isn't immediate as it may be deferred until later
2799          * with multi-vif. once reservation is complete it will re-schedule the
2800          * work with no reserved_chanctx so verify chandef to check if it
2801          * completed successfully
2802          */
2803
2804         if (sdata->reserved_chanctx) {
2805                 /*
2806                  * with multi-vif csa driver may call ieee80211_csa_finish()
2807                  * many times while waiting for other interfaces to use their
2808                  * reservations
2809                  */
2810                 if (sdata->reserved_ready)
2811                         return 0;
2812
2813                 err = ieee80211_vif_use_reserved_context(sdata);
2814                 if (err)
2815                         return err;
2816
2817                 return 0;
2818         }
2819
2820         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2821                                         &sdata->csa_chandef))
2822                 return -EINVAL;
2823
2824         sdata->vif.csa_active = false;
2825
2826         err = ieee80211_set_after_csa_beacon(sdata, &changed);
2827         if (err)
2828                 return err;
2829
2830         ieee80211_bss_info_change_notify(sdata, changed);
2831         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2832
2833         if (sdata->csa_block_tx) {
2834                 ieee80211_wake_vif_queues(local, sdata,
2835                                           IEEE80211_QUEUE_STOP_REASON_CSA);
2836                 sdata->csa_block_tx = false;
2837         }
2838
2839         return 0;
2840 }
2841
2842 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2843 {
2844         if (__ieee80211_csa_finalize(sdata)) {
2845                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2846                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2847                                     GFP_KERNEL);
2848         }
2849 }
2850
2851 void ieee80211_csa_finalize_work(struct work_struct *work)
2852 {
2853         struct ieee80211_sub_if_data *sdata =
2854                 container_of(work, struct ieee80211_sub_if_data,
2855                              csa_finalize_work);
2856         struct ieee80211_local *local = sdata->local;
2857
2858         sdata_lock(sdata);
2859         mutex_lock(&local->mtx);
2860         mutex_lock(&local->chanctx_mtx);
2861
2862         /* AP might have been stopped while waiting for the lock. */
2863         if (!sdata->vif.csa_active)
2864                 goto unlock;
2865
2866         if (!ieee80211_sdata_running(sdata))
2867                 goto unlock;
2868
2869         ieee80211_csa_finalize(sdata);
2870
2871 unlock:
2872         mutex_unlock(&local->chanctx_mtx);
2873         mutex_unlock(&local->mtx);
2874         sdata_unlock(sdata);
2875 }
2876
2877 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2878                                     struct cfg80211_csa_settings *params,
2879                                     u32 *changed)
2880 {
2881         struct ieee80211_csa_settings csa = {};
2882         int err;
2883
2884         switch (sdata->vif.type) {
2885         case NL80211_IFTYPE_AP:
2886                 sdata->u.ap.next_beacon =
2887                         cfg80211_beacon_dup(&params->beacon_after);
2888                 if (!sdata->u.ap.next_beacon)
2889                         return -ENOMEM;
2890
2891                 /*
2892                  * With a count of 0, we don't have to wait for any
2893                  * TBTT before switching, so complete the CSA
2894                  * immediately.  In theory, with a count == 1 we
2895                  * should delay the switch until just before the next
2896                  * TBTT, but that would complicate things so we switch
2897                  * immediately too.  If we would delay the switch
2898                  * until the next TBTT, we would have to set the probe
2899                  * response here.
2900                  *
2901                  * TODO: A channel switch with count <= 1 without
2902                  * sending a CSA action frame is kind of useless,
2903                  * because the clients won't know we're changing
2904                  * channels.  The action frame must be implemented
2905                  * either here or in the userspace.
2906                  */
2907                 if (params->count <= 1)
2908                         break;
2909
2910                 if ((params->n_counter_offsets_beacon >
2911                      IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2912                     (params->n_counter_offsets_presp >
2913                      IEEE80211_MAX_CSA_COUNTERS_NUM))
2914                         return -EINVAL;
2915
2916                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2917                 csa.counter_offsets_presp = params->counter_offsets_presp;
2918                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2919                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2920                 csa.count = params->count;
2921
2922                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
2923                 if (err < 0) {
2924                         kfree(sdata->u.ap.next_beacon);
2925                         return err;
2926                 }
2927                 *changed |= err;
2928
2929                 break;
2930         case NL80211_IFTYPE_ADHOC:
2931                 if (!sdata->vif.bss_conf.ibss_joined)
2932                         return -EINVAL;
2933
2934                 if (params->chandef.width != sdata->u.ibss.chandef.width)
2935                         return -EINVAL;
2936
2937                 switch (params->chandef.width) {
2938                 case NL80211_CHAN_WIDTH_40:
2939                         if (cfg80211_get_chandef_type(&params->chandef) !=
2940                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2941                                 return -EINVAL;
2942                 case NL80211_CHAN_WIDTH_5:
2943                 case NL80211_CHAN_WIDTH_10:
2944                 case NL80211_CHAN_WIDTH_20_NOHT:
2945                 case NL80211_CHAN_WIDTH_20:
2946                         break;
2947                 default:
2948                         return -EINVAL;
2949                 }
2950
2951                 /* changes into another band are not supported */
2952                 if (sdata->u.ibss.chandef.chan->band !=
2953                     params->chandef.chan->band)
2954                         return -EINVAL;
2955
2956                 /* see comments in the NL80211_IFTYPE_AP block */
2957                 if (params->count > 1) {
2958                         err = ieee80211_ibss_csa_beacon(sdata, params);
2959                         if (err < 0)
2960                                 return err;
2961                         *changed |= err;
2962                 }
2963
2964                 ieee80211_send_action_csa(sdata, params);
2965
2966                 break;
2967 #ifdef CONFIG_MAC80211_MESH
2968         case NL80211_IFTYPE_MESH_POINT: {
2969                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2970
2971                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
2972                         return -EINVAL;
2973
2974                 /* changes into another band are not supported */
2975                 if (sdata->vif.bss_conf.chandef.chan->band !=
2976                     params->chandef.chan->band)
2977                         return -EINVAL;
2978
2979                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
2980                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
2981                         if (!ifmsh->pre_value)
2982                                 ifmsh->pre_value = 1;
2983                         else
2984                                 ifmsh->pre_value++;
2985                 }
2986
2987                 /* see comments in the NL80211_IFTYPE_AP block */
2988                 if (params->count > 1) {
2989                         err = ieee80211_mesh_csa_beacon(sdata, params);
2990                         if (err < 0) {
2991                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
2992                                 return err;
2993                         }
2994                         *changed |= err;
2995                 }
2996
2997                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
2998                         ieee80211_send_action_csa(sdata, params);
2999
3000                 break;
3001                 }
3002 #endif
3003         default:
3004                 return -EOPNOTSUPP;
3005         }
3006
3007         return 0;
3008 }
3009
3010 static int
3011 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3012                            struct cfg80211_csa_settings *params)
3013 {
3014         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3015         struct ieee80211_local *local = sdata->local;
3016         struct ieee80211_chanctx_conf *conf;
3017         struct ieee80211_chanctx *chanctx;
3018         int err, changed = 0;
3019
3020         sdata_assert_lock(sdata);
3021         lockdep_assert_held(&local->mtx);
3022
3023         if (!list_empty(&local->roc_list) || local->scanning)
3024                 return -EBUSY;
3025
3026         if (sdata->wdev.cac_started)
3027                 return -EBUSY;
3028
3029         if (cfg80211_chandef_identical(&params->chandef,
3030                                        &sdata->vif.bss_conf.chandef))
3031                 return -EINVAL;
3032
3033         /* don't allow another channel switch if one is already active. */
3034         if (sdata->vif.csa_active)
3035                 return -EBUSY;
3036
3037         mutex_lock(&local->chanctx_mtx);
3038         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3039                                          lockdep_is_held(&local->chanctx_mtx));
3040         if (!conf) {
3041                 err = -EBUSY;
3042                 goto out;
3043         }
3044
3045         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3046         if (!chanctx) {
3047                 err = -EBUSY;
3048                 goto out;
3049         }
3050
3051         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3052                                             chanctx->mode,
3053                                             params->radar_required);
3054         if (err)
3055                 goto out;
3056
3057         /* if reservation is invalid then this will fail */
3058         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3059         if (err) {
3060                 ieee80211_vif_unreserve_chanctx(sdata);
3061                 goto out;
3062         }
3063
3064         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3065         if (err) {
3066                 ieee80211_vif_unreserve_chanctx(sdata);
3067                 goto out;
3068         }
3069
3070         sdata->csa_chandef = params->chandef;
3071         sdata->csa_block_tx = params->block_tx;
3072         sdata->vif.csa_active = true;
3073
3074         if (sdata->csa_block_tx)
3075                 ieee80211_stop_vif_queues(local, sdata,
3076                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3077
3078         if (changed) {
3079                 ieee80211_bss_info_change_notify(sdata, changed);
3080                 drv_channel_switch_beacon(sdata, &params->chandef);
3081         } else {
3082                 /* if the beacon didn't change, we can finalize immediately */
3083                 ieee80211_csa_finalize(sdata);
3084         }
3085
3086 out:
3087         mutex_unlock(&local->chanctx_mtx);
3088         return err;
3089 }
3090
3091 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3092                              struct cfg80211_csa_settings *params)
3093 {
3094         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3095         struct ieee80211_local *local = sdata->local;
3096         int err;
3097
3098         mutex_lock(&local->mtx);
3099         err = __ieee80211_channel_switch(wiphy, dev, params);
3100         mutex_unlock(&local->mtx);
3101
3102         return err;
3103 }
3104
3105 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3106                              struct cfg80211_mgmt_tx_params *params,
3107                              u64 *cookie)
3108 {
3109         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3110         struct ieee80211_local *local = sdata->local;
3111         struct sk_buff *skb;
3112         struct sta_info *sta;
3113         const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3114         bool need_offchan = false;
3115         u32 flags;
3116         int ret;
3117         u8 *data;
3118
3119         if (params->dont_wait_for_ack)
3120                 flags = IEEE80211_TX_CTL_NO_ACK;
3121         else
3122                 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3123                         IEEE80211_TX_CTL_REQ_TX_STATUS;
3124
3125         if (params->no_cck)
3126                 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3127
3128         switch (sdata->vif.type) {
3129         case NL80211_IFTYPE_ADHOC:
3130                 if (!sdata->vif.bss_conf.ibss_joined)
3131                         need_offchan = true;
3132                 /* fall through */
3133 #ifdef CONFIG_MAC80211_MESH
3134         case NL80211_IFTYPE_MESH_POINT:
3135                 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3136                     !sdata->u.mesh.mesh_id_len)
3137                         need_offchan = true;
3138                 /* fall through */
3139 #endif
3140         case NL80211_IFTYPE_AP:
3141         case NL80211_IFTYPE_AP_VLAN:
3142         case NL80211_IFTYPE_P2P_GO:
3143                 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3144                     !ieee80211_vif_is_mesh(&sdata->vif) &&
3145                     !rcu_access_pointer(sdata->bss->beacon))
3146                         need_offchan = true;
3147                 if (!ieee80211_is_action(mgmt->frame_control) ||
3148                     mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3149                     mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3150                     mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3151                         break;
3152                 rcu_read_lock();
3153                 sta = sta_info_get(sdata, mgmt->da);
3154                 rcu_read_unlock();
3155                 if (!sta)
3156                         return -ENOLINK;
3157                 break;
3158         case NL80211_IFTYPE_STATION:
3159         case NL80211_IFTYPE_P2P_CLIENT:
3160                 if (!sdata->u.mgd.associated)
3161                         need_offchan = true;
3162                 break;
3163         case NL80211_IFTYPE_P2P_DEVICE:
3164                 need_offchan = true;
3165                 break;
3166         default:
3167                 return -EOPNOTSUPP;
3168         }
3169
3170         /* configurations requiring offchan cannot work if no channel has been
3171          * specified
3172          */
3173         if (need_offchan && !params->chan)
3174                 return -EINVAL;
3175
3176         mutex_lock(&local->mtx);
3177
3178         /* Check if the operating channel is the requested channel */
3179         if (!need_offchan) {
3180                 struct ieee80211_chanctx_conf *chanctx_conf;
3181
3182                 rcu_read_lock();
3183                 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3184
3185                 if (chanctx_conf) {
3186                         need_offchan = params->chan &&
3187                                        (params->chan !=
3188                                         chanctx_conf->def.chan);
3189                 } else if (!params->chan) {
3190                         ret = -EINVAL;
3191                         rcu_read_unlock();
3192                         goto out_unlock;
3193                 } else {
3194                         need_offchan = true;
3195                 }
3196                 rcu_read_unlock();
3197         }
3198
3199         if (need_offchan && !params->offchan) {
3200                 ret = -EBUSY;
3201                 goto out_unlock;
3202         }
3203
3204         skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3205         if (!skb) {
3206                 ret = -ENOMEM;
3207                 goto out_unlock;
3208         }
3209         skb_reserve(skb, local->hw.extra_tx_headroom);
3210
3211         data = skb_put(skb, params->len);
3212         memcpy(data, params->buf, params->len);
3213
3214         /* Update CSA counters */
3215         if (sdata->vif.csa_active &&
3216             (sdata->vif.type == NL80211_IFTYPE_AP ||
3217              sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3218             params->n_csa_offsets) {
3219                 int i;
3220                 struct beacon_data *beacon = NULL;
3221
3222                 rcu_read_lock();
3223
3224                 if (sdata->vif.type == NL80211_IFTYPE_AP)
3225                         beacon = rcu_dereference(sdata->u.ap.beacon);
3226                 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3227                         beacon = rcu_dereference(sdata->u.ibss.presp);
3228                 else if (ieee80211_vif_is_mesh(&sdata->vif))
3229                         beacon = rcu_dereference(sdata->u.mesh.beacon);
3230
3231                 if (beacon)
3232                         for (i = 0; i < params->n_csa_offsets; i++)
3233                                 data[params->csa_offsets[i]] =
3234                                         beacon->csa_current_counter;
3235
3236                 rcu_read_unlock();
3237         }
3238
3239         IEEE80211_SKB_CB(skb)->flags = flags;
3240
3241         skb->dev = sdata->dev;
3242
3243         if (!need_offchan) {
3244                 *cookie = (unsigned long) skb;
3245                 ieee80211_tx_skb(sdata, skb);
3246                 ret = 0;
3247                 goto out_unlock;
3248         }
3249
3250         IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3251                                         IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3252         if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3253                 IEEE80211_SKB_CB(skb)->hw_queue =
3254                         local->hw.offchannel_tx_hw_queue;
3255
3256         /* This will handle all kinds of coalescing and immediate TX */
3257         ret = ieee80211_start_roc_work(local, sdata, params->chan,
3258                                        params->wait, cookie, skb,
3259                                        IEEE80211_ROC_TYPE_MGMT_TX);
3260         if (ret)
3261                 kfree_skb(skb);
3262  out_unlock:
3263         mutex_unlock(&local->mtx);
3264         return ret;
3265 }
3266
3267 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3268                                          struct wireless_dev *wdev,
3269                                          u64 cookie)
3270 {
3271         struct ieee80211_local *local = wiphy_priv(wiphy);
3272
3273         return ieee80211_cancel_roc(local, cookie, true);
3274 }
3275
3276 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3277                                           struct wireless_dev *wdev,
3278                                           u16 frame_type, bool reg)
3279 {
3280         struct ieee80211_local *local = wiphy_priv(wiphy);
3281
3282         switch (frame_type) {
3283         case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3284                 if (reg)
3285                         local->probe_req_reg++;
3286                 else
3287                         local->probe_req_reg--;
3288
3289                 if (!local->open_count)
3290                         break;
3291
3292                 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3293                 break;
3294         default:
3295                 break;
3296         }
3297 }
3298
3299 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3300 {
3301         struct ieee80211_local *local = wiphy_priv(wiphy);
3302
3303         if (local->started)
3304                 return -EOPNOTSUPP;
3305
3306         return drv_set_antenna(local, tx_ant, rx_ant);
3307 }
3308
3309 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3310 {
3311         struct ieee80211_local *local = wiphy_priv(wiphy);
3312
3313         return drv_get_antenna(local, tx_ant, rx_ant);
3314 }
3315
3316 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3317                                     struct net_device *dev,
3318                                     struct cfg80211_gtk_rekey_data *data)
3319 {
3320         struct ieee80211_local *local = wiphy_priv(wiphy);
3321         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3322
3323         if (!local->ops->set_rekey_data)
3324                 return -EOPNOTSUPP;
3325
3326         drv_set_rekey_data(local, sdata, data);
3327
3328         return 0;
3329 }
3330
3331 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3332                                   const u8 *peer, u64 *cookie)
3333 {
3334         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3335         struct ieee80211_local *local = sdata->local;
3336         struct ieee80211_qos_hdr *nullfunc;
3337         struct sk_buff *skb;
3338         int size = sizeof(*nullfunc);
3339         __le16 fc;
3340         bool qos;
3341         struct ieee80211_tx_info *info;
3342         struct sta_info *sta;
3343         struct ieee80211_chanctx_conf *chanctx_conf;
3344         enum ieee80211_band band;
3345
3346         rcu_read_lock();
3347         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3348         if (WARN_ON(!chanctx_conf)) {
3349                 rcu_read_unlock();
3350                 return -EINVAL;
3351         }
3352         band = chanctx_conf->def.chan->band;
3353         sta = sta_info_get_bss(sdata, peer);
3354         if (sta) {
3355                 qos = test_sta_flag(sta, WLAN_STA_WME);
3356         } else {
3357                 rcu_read_unlock();
3358                 return -ENOLINK;
3359         }
3360
3361         if (qos) {
3362                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3363                                  IEEE80211_STYPE_QOS_NULLFUNC |
3364                                  IEEE80211_FCTL_FROMDS);
3365         } else {
3366                 size -= 2;
3367                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3368                                  IEEE80211_STYPE_NULLFUNC |
3369                                  IEEE80211_FCTL_FROMDS);
3370         }
3371
3372         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3373         if (!skb) {
3374                 rcu_read_unlock();
3375                 return -ENOMEM;
3376         }
3377
3378         skb->dev = dev;
3379
3380         skb_reserve(skb, local->hw.extra_tx_headroom);
3381
3382         nullfunc = (void *) skb_put(skb, size);
3383         nullfunc->frame_control = fc;
3384         nullfunc->duration_id = 0;
3385         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3386         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3387         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3388         nullfunc->seq_ctrl = 0;
3389
3390         info = IEEE80211_SKB_CB(skb);
3391
3392         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3393                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3394
3395         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3396         skb->priority = 7;
3397         if (qos)
3398                 nullfunc->qos_ctrl = cpu_to_le16(7);
3399
3400         local_bh_disable();
3401         ieee80211_xmit(sdata, skb, band);
3402         local_bh_enable();
3403         rcu_read_unlock();
3404
3405         *cookie = (unsigned long) skb;
3406         return 0;
3407 }
3408
3409 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3410                                      struct wireless_dev *wdev,
3411                                      struct cfg80211_chan_def *chandef)
3412 {
3413         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3414         struct ieee80211_local *local = wiphy_priv(wiphy);
3415         struct ieee80211_chanctx_conf *chanctx_conf;
3416         int ret = -ENODATA;
3417
3418         rcu_read_lock();
3419         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3420         if (chanctx_conf) {
3421                 *chandef = chanctx_conf->def;
3422                 ret = 0;
3423         } else if (local->open_count > 0 &&
3424                    local->open_count == local->monitors &&
3425                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3426                 if (local->use_chanctx)
3427                         *chandef = local->monitor_chandef;
3428                 else
3429                         *chandef = local->_oper_chandef;
3430                 ret = 0;
3431         }
3432         rcu_read_unlock();
3433
3434         return ret;
3435 }
3436
3437 #ifdef CONFIG_PM
3438 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3439 {
3440         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3441 }
3442 #endif
3443
3444 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3445                                  struct net_device *dev,
3446                                  struct cfg80211_qos_map *qos_map)
3447 {
3448         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3449         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3450
3451         if (qos_map) {
3452                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3453                 if (!new_qos_map)
3454                         return -ENOMEM;
3455                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3456         } else {
3457                 /* A NULL qos_map was passed to disable QoS mapping */
3458                 new_qos_map = NULL;
3459         }
3460
3461         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3462         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3463         if (old_qos_map)
3464                 kfree_rcu(old_qos_map, rcu_head);
3465
3466         return 0;
3467 }
3468
3469 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3470                                       struct net_device *dev,
3471                                       struct cfg80211_chan_def *chandef)
3472 {
3473         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3474         int ret;
3475         u32 changed = 0;
3476
3477         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3478         if (ret == 0)
3479                 ieee80211_bss_info_change_notify(sdata, changed);
3480
3481         return ret;
3482 }
3483
3484 const struct cfg80211_ops mac80211_config_ops = {
3485         .add_virtual_intf = ieee80211_add_iface,
3486         .del_virtual_intf = ieee80211_del_iface,
3487         .change_virtual_intf = ieee80211_change_iface,
3488         .start_p2p_device = ieee80211_start_p2p_device,
3489         .stop_p2p_device = ieee80211_stop_p2p_device,
3490         .add_key = ieee80211_add_key,
3491         .del_key = ieee80211_del_key,
3492         .get_key = ieee80211_get_key,
3493         .set_default_key = ieee80211_config_default_key,
3494         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3495         .start_ap = ieee80211_start_ap,
3496         .change_beacon = ieee80211_change_beacon,
3497         .stop_ap = ieee80211_stop_ap,
3498         .add_station = ieee80211_add_station,
3499         .del_station = ieee80211_del_station,
3500         .change_station = ieee80211_change_station,
3501         .get_station = ieee80211_get_station,
3502         .dump_station = ieee80211_dump_station,
3503         .dump_survey = ieee80211_dump_survey,
3504 #ifdef CONFIG_MAC80211_MESH
3505         .add_mpath = ieee80211_add_mpath,
3506         .del_mpath = ieee80211_del_mpath,
3507         .change_mpath = ieee80211_change_mpath,
3508         .get_mpath = ieee80211_get_mpath,
3509         .dump_mpath = ieee80211_dump_mpath,
3510         .update_mesh_config = ieee80211_update_mesh_config,
3511         .get_mesh_config = ieee80211_get_mesh_config,
3512         .join_mesh = ieee80211_join_mesh,
3513         .leave_mesh = ieee80211_leave_mesh,
3514 #endif
3515         .change_bss = ieee80211_change_bss,
3516         .set_txq_params = ieee80211_set_txq_params,
3517         .set_monitor_channel = ieee80211_set_monitor_channel,
3518         .suspend = ieee80211_suspend,
3519         .resume = ieee80211_resume,
3520         .scan = ieee80211_scan,
3521         .sched_scan_start = ieee80211_sched_scan_start,
3522         .sched_scan_stop = ieee80211_sched_scan_stop,
3523         .auth = ieee80211_auth,
3524         .assoc = ieee80211_assoc,
3525         .deauth = ieee80211_deauth,
3526         .disassoc = ieee80211_disassoc,
3527         .join_ibss = ieee80211_join_ibss,
3528         .leave_ibss = ieee80211_leave_ibss,
3529         .set_mcast_rate = ieee80211_set_mcast_rate,
3530         .set_wiphy_params = ieee80211_set_wiphy_params,
3531         .set_tx_power = ieee80211_set_tx_power,
3532         .get_tx_power = ieee80211_get_tx_power,
3533         .set_wds_peer = ieee80211_set_wds_peer,
3534         .rfkill_poll = ieee80211_rfkill_poll,
3535         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3536         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3537         .set_power_mgmt = ieee80211_set_power_mgmt,
3538         .set_bitrate_mask = ieee80211_set_bitrate_mask,
3539         .remain_on_channel = ieee80211_remain_on_channel,
3540         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3541         .mgmt_tx = ieee80211_mgmt_tx,
3542         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3543         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3544         .mgmt_frame_register = ieee80211_mgmt_frame_register,
3545         .set_antenna = ieee80211_set_antenna,
3546         .get_antenna = ieee80211_get_antenna,
3547         .set_rekey_data = ieee80211_set_rekey_data,
3548         .tdls_oper = ieee80211_tdls_oper,
3549         .tdls_mgmt = ieee80211_tdls_mgmt,
3550         .probe_client = ieee80211_probe_client,
3551         .set_noack_map = ieee80211_set_noack_map,
3552 #ifdef CONFIG_PM
3553         .set_wakeup = ieee80211_set_wakeup,
3554 #endif
3555         .get_channel = ieee80211_cfg_get_channel,
3556         .start_radar_detection = ieee80211_start_radar_detection,
3557         .channel_switch = ieee80211_channel_switch,
3558         .set_qos_map = ieee80211_set_qos_map,
3559         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3560 };