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         return ieee80211_do_open(wdev, true);
 113 }
 114
 115 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 116                                       struct wireless_dev *wdev)
 117 {
 118         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 119 }
 120
 121 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 122                                   struct net_device *dev,
 123                                   u16 noack_map)
 124 {
 125         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 126
 127         sdata->noack_map = noack_map;
 128         return 0;
 129 }
 130
 131 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 132                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 133                              struct key_params *params)
 134 {
 135         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 136         struct sta_info *sta = NULL;
 137         struct ieee80211_key *key;
 138         int err;
 139
 140         if (!ieee80211_sdata_running(sdata))
 141                 return -ENETDOWN;
 142
 143         /* reject WEP and TKIP keys if WEP failed to initialize */
 144         switch (params->cipher) {
 145         case WLAN_CIPHER_SUITE_WEP40:
 146         case WLAN_CIPHER_SUITE_TKIP:
 147         case WLAN_CIPHER_SUITE_WEP104:
 148                 if (IS_ERR(sdata->local->wep_tx_tfm))
 149                         return -EINVAL;
 150                 break;
 151         default:
 152                 break;
 153         }
 154
 155         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 156                                   params->key, params->seq_len, params->seq);
 157         if (IS_ERR(key))
 158                 return PTR_ERR(key);
 159
 160         if (pairwise)
 161                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 162
 163         mutex_lock(&sdata->local->sta_mtx);
 164
 165         if (mac_addr) {
 166                 if (ieee80211_vif_is_mesh(&sdata->vif))
 167                         sta = sta_info_get(sdata, mac_addr);
 168                 else
 169                         sta = sta_info_get_bss(sdata, mac_addr);
 170                 /*
 171                  * The ASSOC test makes sure the driver is ready to
 172                  * receive the key. When wpa_supplicant has roamed
 173                  * using FT, it attempts to set the key before
 174                  * association has completed, this rejects that attempt
 175                  * so it will set the key again after assocation.
 176                  *
 177                  * TODO: accept the key if we have a station entry and
 178                  *       add it to the device after the station.
 179                  */
 180                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 181                         ieee80211_key_free_unused(key);
 182                         err = -ENOENT;
 183                         goto out_unlock;
 184                 }
 185         }
 186
 187         switch (sdata->vif.type) {
 188         case NL80211_IFTYPE_STATION:
 189                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 190                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 191                 break;
 192         case NL80211_IFTYPE_AP:
 193         case NL80211_IFTYPE_AP_VLAN:
 194                 /* Keys without a station are used for TX only */
 195                 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
 196                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 197                 break;
 198         case NL80211_IFTYPE_ADHOC:
 199                 /* no MFP (yet) */
 200                 break;
 201         case NL80211_IFTYPE_MESH_POINT:
 202 #ifdef CONFIG_MAC80211_MESH
 203                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 204                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 205                 break;
 206 #endif
 207         case NL80211_IFTYPE_WDS:
 208         case NL80211_IFTYPE_MONITOR:
 209         case NL80211_IFTYPE_P2P_DEVICE:
 210         case NL80211_IFTYPE_UNSPECIFIED:
 211         case NUM_NL80211_IFTYPES:
 212         case NL80211_IFTYPE_P2P_CLIENT:
 213         case NL80211_IFTYPE_P2P_GO:
 214                 /* shouldn't happen */
 215                 WARN_ON_ONCE(1);
 216                 break;
 217         }
 218
 219         err = ieee80211_key_link(key, sdata, sta);
 220
 221  out_unlock:
 222         mutex_unlock(&sdata->local->sta_mtx);
 223
 224         return err;
 225 }
 226
 227 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 228                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 229 {
 230         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 231         struct ieee80211_local *local = sdata->local;
 232         struct sta_info *sta;
 233         struct ieee80211_key *key = NULL;
 234         int ret;
 235
 236         mutex_lock(&local->sta_mtx);
 237         mutex_lock(&local->key_mtx);
 238
 239         if (mac_addr) {
 240                 ret = -ENOENT;
 241
 242                 sta = sta_info_get_bss(sdata, mac_addr);
 243                 if (!sta)
 244                         goto out_unlock;
 245
 246                 if (pairwise)
 247                         key = key_mtx_dereference(local, sta->ptk);
 248                 else
 249                         key = key_mtx_dereference(local, sta->gtk[key_idx]);
 250         } else
 251                 key = key_mtx_dereference(local, sdata->keys[key_idx]);
 252
 253         if (!key) {
 254                 ret = -ENOENT;
 255                 goto out_unlock;
 256         }
 257
 258         ieee80211_key_free(key, true);
 259
 260         ret = 0;
 261  out_unlock:
 262         mutex_unlock(&local->key_mtx);
 263         mutex_unlock(&local->sta_mtx);
 264
 265         return ret;
 266 }
 267
 268 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 269                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 270                              void *cookie,
 271                              void (*callback)(void *cookie,
 272                                               struct key_params *params))
 273 {
 274         struct ieee80211_sub_if_data *sdata;
 275         struct sta_info *sta = NULL;
 276         u8 seq[6] = {0};
 277         struct key_params params;
 278         struct ieee80211_key *key = NULL;
 279         u64 pn64;
 280         u32 iv32;
 281         u16 iv16;
 282         int err = -ENOENT;
 283
 284         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 285
 286         rcu_read_lock();
 287
 288         if (mac_addr) {
 289                 sta = sta_info_get_bss(sdata, mac_addr);
 290                 if (!sta)
 291                         goto out;
 292
 293                 if (pairwise)
 294                         key = rcu_dereference(sta->ptk);
 295                 else if (key_idx < NUM_DEFAULT_KEYS)
 296                         key = rcu_dereference(sta->gtk[key_idx]);
 297         } else
 298                 key = rcu_dereference(sdata->keys[key_idx]);
 299
 300         if (!key)
 301                 goto out;
 302
 303         memset(&params, 0, sizeof(params));
 304
 305         params.cipher = key->conf.cipher;
 306
 307         switch (key->conf.cipher) {
 308         case WLAN_CIPHER_SUITE_TKIP:
 309                 iv32 = key->u.tkip.tx.iv32;
 310                 iv16 = key->u.tkip.tx.iv16;
 311
 312                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 313                         drv_get_tkip_seq(sdata->local,
 314                                          key->conf.hw_key_idx,
 315                                          &iv32, &iv16);
 316
 317                 seq[0] = iv16 & 0xff;
 318                 seq[1] = (iv16 >> 8) & 0xff;
 319                 seq[2] = iv32 & 0xff;
 320                 seq[3] = (iv32 >> 8) & 0xff;
 321                 seq[4] = (iv32 >> 16) & 0xff;
 322                 seq[5] = (iv32 >> 24) & 0xff;
 323                 params.seq = seq;
 324                 params.seq_len = 6;
 325                 break;
 326         case WLAN_CIPHER_SUITE_CCMP:
 327                 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
 328                 seq[0] = pn64;
 329                 seq[1] = pn64 >> 8;
 330                 seq[2] = pn64 >> 16;
 331                 seq[3] = pn64 >> 24;
 332                 seq[4] = pn64 >> 32;
 333                 seq[5] = pn64 >> 40;
 334                 params.seq = seq;
 335                 params.seq_len = 6;
 336                 break;
 337         case WLAN_CIPHER_SUITE_AES_CMAC:
 338                 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
 339                 seq[0] = pn64;
 340                 seq[1] = pn64 >> 8;
 341                 seq[2] = pn64 >> 16;
 342                 seq[3] = pn64 >> 24;
 343                 seq[4] = pn64 >> 32;
 344                 seq[5] = pn64 >> 40;
 345                 params.seq = seq;
 346                 params.seq_len = 6;
 347                 break;
 348         }
 349
 350         params.key = key->conf.key;
 351         params.key_len = key->conf.keylen;
 352
 353         callback(cookie, &params);
 354         err = 0;
 355
 356  out:
 357         rcu_read_unlock();
 358         return err;
 359 }
 360
 361 static int ieee80211_config_default_key(struct wiphy *wiphy,
 362                                         struct net_device *dev,
 363                                         u8 key_idx, bool uni,
 364                                         bool multi)
 365 {
 366         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 367
 368         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 369
 370         return 0;
 371 }
 372
 373 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 374                                              struct net_device *dev,
 375                                              u8 key_idx)
 376 {
 377         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 378
 379         ieee80211_set_default_mgmt_key(sdata, key_idx);
 380
 381         return 0;
 382 }
 383
 384 void sta_set_rate_info_tx(struct sta_info *sta,
 385                           const struct ieee80211_tx_rate *rate,
 386                           struct rate_info *rinfo)
 387 {
 388         rinfo->flags = 0;
 389         if (rate->flags & IEEE80211_TX_RC_MCS) {
 390                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 391                 rinfo->mcs = rate->idx;
 392         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 393                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 394                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 395                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 396         } else {
 397                 struct ieee80211_supported_band *sband;
 398                 sband = sta->local->hw.wiphy->bands[
 399                                 ieee80211_get_sdata_band(sta->sdata)];
 400                 rinfo->legacy = sband->bitrates[rate->idx].bitrate;
 401         }
 402         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 403                 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 404         if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 405                 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 406         if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 407                 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 408         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 409                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 410 }
 411
 412 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
 413 {
 414         rinfo->flags = 0;
 415
 416         if (sta->last_rx_rate_flag & RX_FLAG_HT) {
 417                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 418                 rinfo->mcs = sta->last_rx_rate_idx;
 419         } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
 420                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 421                 rinfo->nss = sta->last_rx_rate_vht_nss;
 422                 rinfo->mcs = sta->last_rx_rate_idx;
 423         } else {
 424                 struct ieee80211_supported_band *sband;
 425
 426                 sband = sta->local->hw.wiphy->bands[
 427                                 ieee80211_get_sdata_band(sta->sdata)];
 428                 rinfo->legacy =
 429                         sband->bitrates[sta->last_rx_rate_idx].bitrate;
 430         }
 431
 432         if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
 433                 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 434         if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
 435                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 436         if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
 437                 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 438         if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
 439                 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
 440         if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
 441                 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 442 }
 443
 444 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 445 {
 446         struct ieee80211_sub_if_data *sdata = sta->sdata;
 447         struct ieee80211_local *local = sdata->local;
 448         struct timespec uptime;
 449         u64 packets = 0;
 450         int i, ac;
 451
 452         sinfo->generation = sdata->local->sta_generation;
 453
 454         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 455                         STATION_INFO_RX_BYTES64 |
 456                         STATION_INFO_TX_BYTES64 |
 457                         STATION_INFO_RX_PACKETS |
 458                         STATION_INFO_TX_PACKETS |
 459                         STATION_INFO_TX_RETRIES |
 460                         STATION_INFO_TX_FAILED |
 461                         STATION_INFO_TX_BITRATE |
 462                         STATION_INFO_RX_BITRATE |
 463                         STATION_INFO_RX_DROP_MISC |
 464                         STATION_INFO_BSS_PARAM |
 465                         STATION_INFO_CONNECTED_TIME |
 466                         STATION_INFO_STA_FLAGS |
 467                         STATION_INFO_BEACON_LOSS_COUNT;
 468
 469         do_posix_clock_monotonic_gettime(&uptime);
 470         sinfo->connected_time = uptime.tv_sec - sta->last_connected;
 471
 472         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 473         sinfo->tx_bytes = 0;
 474         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 475                 sinfo->tx_bytes += sta->tx_bytes[ac];
 476                 packets += sta->tx_packets[ac];
 477         }
 478         sinfo->tx_packets = packets;
 479         sinfo->rx_bytes = sta->rx_bytes;
 480         sinfo->rx_packets = sta->rx_packets;
 481         sinfo->tx_retries = sta->tx_retry_count;
 482         sinfo->tx_failed = sta->tx_retry_failed;
 483         sinfo->rx_dropped_misc = sta->rx_dropped;
 484         sinfo->beacon_loss_count = sta->beacon_loss_count;
 485
 486         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 487             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 488                 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 489                 if (!local->ops->get_rssi ||
 490                     drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
 491                         sinfo->signal = (s8)sta->last_signal;
 492                 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
 493         }
 494         if (sta->chains) {
 495                 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
 496                                  STATION_INFO_CHAIN_SIGNAL_AVG;
 497
 498                 sinfo->chains = sta->chains;
 499                 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
 500                         sinfo->chain_signal[i] = sta->chain_signal_last[i];
 501                         sinfo->chain_signal_avg[i] =
 502                                 (s8) -ewma_read(&sta->chain_signal_avg[i]);
 503                 }
 504         }
 505
 506         sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
 507         sta_set_rate_info_rx(sta, &sinfo->rxrate);
 508
 509         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 510 #ifdef CONFIG_MAC80211_MESH
 511                 sinfo->filled |= STATION_INFO_LLID |
 512                                  STATION_INFO_PLID |
 513                                  STATION_INFO_PLINK_STATE |
 514                                  STATION_INFO_LOCAL_PM |
 515                                  STATION_INFO_PEER_PM |
 516                                  STATION_INFO_NONPEER_PM;
 517
 518                 sinfo->llid = le16_to_cpu(sta->llid);
 519                 sinfo->plid = le16_to_cpu(sta->plid);
 520                 sinfo->plink_state = sta->plink_state;
 521                 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
 522                         sinfo->filled |= STATION_INFO_T_OFFSET;
 523                         sinfo->t_offset = sta->t_offset;
 524                 }
 525                 sinfo->local_pm = sta->local_pm;
 526                 sinfo->peer_pm = sta->peer_pm;
 527                 sinfo->nonpeer_pm = sta->nonpeer_pm;
 528 #endif
 529         }
 530
 531         sinfo->bss_param.flags = 0;
 532         if (sdata->vif.bss_conf.use_cts_prot)
 533                 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
 534         if (sdata->vif.bss_conf.use_short_preamble)
 535                 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 536         if (sdata->vif.bss_conf.use_short_slot)
 537                 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 538         sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
 539         sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
 540
 541         sinfo->sta_flags.set = 0;
 542         sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
 543                                 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
 544                                 BIT(NL80211_STA_FLAG_WME) |
 545                                 BIT(NL80211_STA_FLAG_MFP) |
 546                                 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
 547                                 BIT(NL80211_STA_FLAG_ASSOCIATED) |
 548                                 BIT(NL80211_STA_FLAG_TDLS_PEER);
 549         if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
 550                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
 551         if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
 552                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
 553         if (test_sta_flag(sta, WLAN_STA_WME))
 554                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
 555         if (test_sta_flag(sta, WLAN_STA_MFP))
 556                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
 557         if (test_sta_flag(sta, WLAN_STA_AUTH))
 558                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
 559         if (test_sta_flag(sta, WLAN_STA_ASSOC))
 560                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
 561         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
 562                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
 563 }
 564
 565 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
 566         "rx_packets", "rx_bytes", "wep_weak_iv_count",
 567         "rx_duplicates", "rx_fragments", "rx_dropped",
 568         "tx_packets", "tx_bytes", "tx_fragments",
 569         "tx_filtered", "tx_retry_failed", "tx_retries",
 570         "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
 571         "channel", "noise", "ch_time", "ch_time_busy",
 572         "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
 573 };
 574 #define STA_STATS_LEN   ARRAY_SIZE(ieee80211_gstrings_sta_stats)
 575
 576 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
 577                                        struct net_device *dev,
 578                                        int sset)
 579 {
 580         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 581         int rv = 0;
 582
 583         if (sset == ETH_SS_STATS)
 584                 rv += STA_STATS_LEN;
 585
 586         rv += drv_get_et_sset_count(sdata, sset);
 587
 588         if (rv == 0)
 589                 return -EOPNOTSUPP;
 590         return rv;
 591 }
 592
 593 static void ieee80211_get_et_stats(struct wiphy *wiphy,
 594                                    struct net_device *dev,
 595                                    struct ethtool_stats *stats,
 596                                    u64 *data)
 597 {
 598         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 599         struct ieee80211_chanctx_conf *chanctx_conf;
 600         struct ieee80211_channel *channel;
 601         struct sta_info *sta;
 602         struct ieee80211_local *local = sdata->local;
 603         struct station_info sinfo;
 604         struct survey_info survey;
 605         int i, q;
 606 #define STA_STATS_SURVEY_LEN 7
 607
 608         memset(data, 0, sizeof(u64) * STA_STATS_LEN);
 609
 610 #define ADD_STA_STATS(sta)                              \
 611         do {                                            \
 612                 data[i++] += sta->rx_packets;           \
 613                 data[i++] += sta->rx_bytes;             \
 614                 data[i++] += sta->wep_weak_iv_count;    \
 615                 data[i++] += sta->num_duplicates;       \
 616                 data[i++] += sta->rx_fragments;         \
 617                 data[i++] += sta->rx_dropped;           \
 618                                                         \
 619                 data[i++] += sinfo.tx_packets;          \
 620                 data[i++] += sinfo.tx_bytes;            \
 621                 data[i++] += sta->tx_fragments;         \
 622                 data[i++] += sta->tx_filtered_count;    \
 623                 data[i++] += sta->tx_retry_failed;      \
 624                 data[i++] += sta->tx_retry_count;       \
 625                 data[i++] += sta->beacon_loss_count;    \
 626         } while (0)
 627
 628         /* For Managed stations, find the single station based on BSSID
 629          * and use that.  For interface types, iterate through all available
 630          * stations and add stats for any station that is assigned to this
 631          * network device.
 632          */
 633
 634         mutex_lock(&local->sta_mtx);
 635
 636         if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 637                 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
 638
 639                 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
 640                         goto do_survey;
 641
 642                 sinfo.filled = 0;
 643                 sta_set_sinfo(sta, &sinfo);
 644
 645                 i = 0;
 646                 ADD_STA_STATS(sta);
 647
 648                 data[i++] = sta->sta_state;
 649
 650
 651                 if (sinfo.filled & STATION_INFO_TX_BITRATE)
 652                         data[i] = 100000 *
 653                                 cfg80211_calculate_bitrate(&sinfo.txrate);
 654                 i++;
 655                 if (sinfo.filled & STATION_INFO_RX_BITRATE)
 656                         data[i] = 100000 *
 657                                 cfg80211_calculate_bitrate(&sinfo.rxrate);
 658                 i++;
 659
 660                 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
 661                         data[i] = (u8)sinfo.signal_avg;
 662                 i++;
 663         } else {
 664                 list_for_each_entry(sta, &local->sta_list, list) {
 665                         /* Make sure this station belongs to the proper dev */
 666                         if (sta->sdata->dev != dev)
 667                                 continue;
 668
 669                         i = 0;
 670                         ADD_STA_STATS(sta);
 671                 }
 672         }
 673
 674 do_survey:
 675         i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
 676         /* Get survey stats for current channel */
 677         survey.filled = 0;
 678
 679         rcu_read_lock();
 680         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 681         if (chanctx_conf)
 682                 channel = chanctx_conf->def.chan;
 683         else
 684                 channel = NULL;
 685         rcu_read_unlock();
 686
 687         if (channel) {
 688                 q = 0;
 689                 do {
 690                         survey.filled = 0;
 691                         if (drv_get_survey(local, q, &survey) != 0) {
 692                                 survey.filled = 0;
 693                                 break;
 694                         }
 695                         q++;
 696                 } while (channel != survey.channel);
 697         }
 698
 699         if (survey.filled)
 700                 data[i++] = survey.channel->center_freq;
 701         else
 702                 data[i++] = 0;
 703         if (survey.filled & SURVEY_INFO_NOISE_DBM)
 704                 data[i++] = (u8)survey.noise;
 705         else
 706                 data[i++] = -1LL;
 707         if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
 708                 data[i++] = survey.channel_time;
 709         else
 710                 data[i++] = -1LL;
 711         if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
 712                 data[i++] = survey.channel_time_busy;
 713         else
 714                 data[i++] = -1LL;
 715         if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
 716                 data[i++] = survey.channel_time_ext_busy;
 717         else
 718                 data[i++] = -1LL;
 719         if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
 720                 data[i++] = survey.channel_time_rx;
 721         else
 722                 data[i++] = -1LL;
 723         if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
 724                 data[i++] = survey.channel_time_tx;
 725         else
 726                 data[i++] = -1LL;
 727
 728         mutex_unlock(&local->sta_mtx);
 729
 730         if (WARN_ON(i != STA_STATS_LEN))
 731                 return;
 732
 733         drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
 734 }
 735
 736 static void ieee80211_get_et_strings(struct wiphy *wiphy,
 737                                      struct net_device *dev,
 738                                      u32 sset, u8 *data)
 739 {
 740         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 741         int sz_sta_stats = 0;
 742
 743         if (sset == ETH_SS_STATS) {
 744                 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
 745                 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
 746         }
 747         drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
 748 }
 749
 750 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 751                                  int idx, u8 *mac, struct station_info *sinfo)
 752 {
 753         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 754         struct ieee80211_local *local = sdata->local;
 755         struct sta_info *sta;
 756         int ret = -ENOENT;
 757
 758         mutex_lock(&local->sta_mtx);
 759
 760         sta = sta_info_get_by_idx(sdata, idx);
 761         if (sta) {
 762                 ret = 0;
 763                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 764                 sta_set_sinfo(sta, sinfo);
 765         }
 766
 767         mutex_unlock(&local->sta_mtx);
 768
 769         return ret;
 770 }
 771
 772 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 773                                  int idx, struct survey_info *survey)
 774 {
 775         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 776
 777         return drv_get_survey(local, idx, survey);
 778 }
 779
 780 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 781                                  u8 *mac, struct station_info *sinfo)
 782 {
 783         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 784         struct ieee80211_local *local = sdata->local;
 785         struct sta_info *sta;
 786         int ret = -ENOENT;
 787
 788         mutex_lock(&local->sta_mtx);
 789
 790         sta = sta_info_get_bss(sdata, mac);
 791         if (sta) {
 792                 ret = 0;
 793                 sta_set_sinfo(sta, sinfo);
 794         }
 795
 796         mutex_unlock(&local->sta_mtx);
 797
 798         return ret;
 799 }
 800
 801 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 802                                          struct cfg80211_chan_def *chandef)
 803 {
 804         struct ieee80211_local *local = wiphy_priv(wiphy);
 805         struct ieee80211_sub_if_data *sdata;
 806         int ret = 0;
 807
 808         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 809                 return 0;
 810
 811         mutex_lock(&local->iflist_mtx);
 812         if (local->use_chanctx) {
 813                 sdata = rcu_dereference_protected(
 814                                 local->monitor_sdata,
 815                                 lockdep_is_held(&local->iflist_mtx));
 816                 if (sdata) {
 817                         ieee80211_vif_release_channel(sdata);
 818                         ret = ieee80211_vif_use_channel(sdata, chandef,
 819                                         IEEE80211_CHANCTX_EXCLUSIVE);
 820                 }
 821         } else if (local->open_count == local->monitors) {
 822                 local->_oper_chandef = *chandef;
 823                 ieee80211_hw_config(local, 0);
 824         }
 825
 826         if (ret == 0)
 827                 local->monitor_chandef = *chandef;
 828         mutex_unlock(&local->iflist_mtx);
 829
 830         return ret;
 831 }
 832
 833 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 834                                     const u8 *resp, size_t resp_len)
 835 {
 836         struct probe_resp *new, *old;
 837
 838         if (!resp || !resp_len)
 839                 return 1;
 840
 841         old = rtnl_dereference(sdata->u.ap.probe_resp);
 842
 843         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 844         if (!new)
 845                 return -ENOMEM;
 846
 847         new->len = resp_len;
 848         memcpy(new->data, resp, resp_len);
 849
 850         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 851         if (old)
 852                 kfree_rcu(old, rcu_head);
 853
 854         return 0;
 855 }
 856
 857 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 858                                    struct cfg80211_beacon_data *params)
 859 {
 860         struct beacon_data *new, *old;
 861         int new_head_len, new_tail_len;
 862         int size, err;
 863         u32 changed = BSS_CHANGED_BEACON;
 864
 865         old = rtnl_dereference(sdata->u.ap.beacon);
 866
 867         /* Need to have a beacon head if we don't have one yet */
 868         if (!params->head && !old)
 869                 return -EINVAL;
 870
 871         /* new or old head? */
 872         if (params->head)
 873                 new_head_len = params->head_len;
 874         else
 875                 new_head_len = old->head_len;
 876
 877         /* new or old tail? */
 878         if (params->tail || !old)
 879                 /* params->tail_len will be zero for !params->tail */
 880                 new_tail_len = params->tail_len;
 881         else
 882                 new_tail_len = old->tail_len;
 883
 884         size = sizeof(*new) + new_head_len + new_tail_len;
 885
 886         new = kzalloc(size, GFP_KERNEL);
 887         if (!new)
 888                 return -ENOMEM;
 889
 890         /* start filling the new info now */
 891
 892         /*
 893          * pointers go into the block we allocated,
 894          * memory is | beacon_data | head | tail |
 895          */
 896         new->head = ((u8 *) new) + sizeof(*new);
 897         new->tail = new->head + new_head_len;
 898         new->head_len = new_head_len;
 899         new->tail_len = new_tail_len;
 900
 901         /* copy in head */
 902         if (params->head)
 903                 memcpy(new->head, params->head, new_head_len);
 904         else
 905                 memcpy(new->head, old->head, new_head_len);
 906
 907         /* copy in optional tail */
 908         if (params->tail)
 909                 memcpy(new->tail, params->tail, new_tail_len);
 910         else
 911                 if (old)
 912                         memcpy(new->tail, old->tail, new_tail_len);
 913
 914         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
 915                                        params->probe_resp_len);
 916         if (err < 0)
 917                 return err;
 918         if (err == 0)
 919                 changed |= BSS_CHANGED_AP_PROBE_RESP;
 920
 921         rcu_assign_pointer(sdata->u.ap.beacon, new);
 922
 923         if (old)
 924                 kfree_rcu(old, rcu_head);
 925
 926         return changed;
 927 }
 928
 929 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 930                               struct cfg80211_ap_settings *params)
 931 {
 932         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 933         struct beacon_data *old;
 934         struct ieee80211_sub_if_data *vlan;
 935         u32 changed = BSS_CHANGED_BEACON_INT |
 936                       BSS_CHANGED_BEACON_ENABLED |
 937                       BSS_CHANGED_BEACON |
 938                       BSS_CHANGED_SSID |
 939                       BSS_CHANGED_P2P_PS;
 940         int err;
 941
 942         old = rtnl_dereference(sdata->u.ap.beacon);
 943         if (old)
 944                 return -EALREADY;
 945
 946         /* TODO: make hostapd tell us what it wants */
 947         sdata->smps_mode = IEEE80211_SMPS_OFF;
 948         sdata->needed_rx_chains = sdata->local->rx_chains;
 949         sdata->radar_required = params->radar_required;
 950
 951         err = ieee80211_vif_use_channel(sdata, &params->chandef,
 952                                         IEEE80211_CHANCTX_SHARED);
 953         if (err)
 954                 return err;
 955         ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
 956
 957         /*
 958          * Apply control port protocol, this allows us to
 959          * not encrypt dynamic WEP control frames.
 960          */
 961         sdata->control_port_protocol = params->crypto.control_port_ethertype;
 962         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
 963         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
 964                 vlan->control_port_protocol =
 965                         params->crypto.control_port_ethertype;
 966                 vlan->control_port_no_encrypt =
 967                         params->crypto.control_port_no_encrypt;
 968         }
 969
 970         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
 971         sdata->vif.bss_conf.dtim_period = params->dtim_period;
 972         sdata->vif.bss_conf.enable_beacon = true;
 973
 974         sdata->vif.bss_conf.ssid_len = params->ssid_len;
 975         if (params->ssid_len)
 976                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
 977                        params->ssid_len);
 978         sdata->vif.bss_conf.hidden_ssid =
 979                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
 980
 981         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
 982                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
 983         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
 984                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
 985         if (params->p2p_opp_ps)
 986                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
 987                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
 988
 989         err = ieee80211_assign_beacon(sdata, &params->beacon);
 990         if (err < 0)
 991                 return err;
 992         changed |= err;
 993
 994         err = drv_start_ap(sdata->local, sdata);
 995         if (err) {
 996                 old = rtnl_dereference(sdata->u.ap.beacon);
 997                 if (old)
 998                         kfree_rcu(old, rcu_head);
 999                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1000                 return err;
1001         }
1002
1003         ieee80211_bss_info_change_notify(sdata, changed);
1004
1005         netif_carrier_on(dev);
1006         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1007                 netif_carrier_on(vlan->dev);
1008
1009         return 0;
1010 }
1011
1012 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1013                                    struct cfg80211_beacon_data *params)
1014 {
1015         struct ieee80211_sub_if_data *sdata;
1016         struct beacon_data *old;
1017         int err;
1018
1019         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1020
1021         old = rtnl_dereference(sdata->u.ap.beacon);
1022         if (!old)
1023                 return -ENOENT;
1024
1025         err = ieee80211_assign_beacon(sdata, params);
1026         if (err < 0)
1027                 return err;
1028         ieee80211_bss_info_change_notify(sdata, err);
1029         return 0;
1030 }
1031
1032 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1033 {
1034         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1035         struct ieee80211_sub_if_data *vlan;
1036         struct ieee80211_local *local = sdata->local;
1037         struct beacon_data *old_beacon;
1038         struct probe_resp *old_probe_resp;
1039
1040         old_beacon = rtnl_dereference(sdata->u.ap.beacon);
1041         if (!old_beacon)
1042                 return -ENOENT;
1043         old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp);
1044
1045         /* turn off carrier for this interface and dependent VLANs */
1046         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1047                 netif_carrier_off(vlan->dev);
1048         netif_carrier_off(dev);
1049
1050         /* remove beacon and probe response */
1051         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1052         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1053         kfree_rcu(old_beacon, rcu_head);
1054         if (old_probe_resp)
1055                 kfree_rcu(old_probe_resp, rcu_head);
1056
1057         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1058                 sta_info_flush_defer(vlan);
1059         sta_info_flush_defer(sdata);
1060         synchronize_net();
1061         rcu_barrier();
1062         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1063                 sta_info_flush_cleanup(vlan);
1064                 ieee80211_free_keys(vlan);
1065         }
1066         sta_info_flush_cleanup(sdata);
1067         ieee80211_free_keys(sdata);
1068
1069         sdata->vif.bss_conf.enable_beacon = false;
1070         sdata->vif.bss_conf.ssid_len = 0;
1071         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1072         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1073
1074         if (sdata->wdev.cac_started) {
1075                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1076                 cfg80211_cac_event(sdata->dev, NL80211_RADAR_CAC_ABORTED,
1077                                    GFP_KERNEL);
1078         }
1079
1080         drv_stop_ap(sdata->local, sdata);
1081
1082         /* free all potentially still buffered bcast frames */
1083         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1084         skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1085
1086         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1087         ieee80211_vif_release_channel(sdata);
1088
1089         return 0;
1090 }
1091
1092 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1093 struct iapp_layer2_update {
1094         u8 da[ETH_ALEN];        /* broadcast */
1095         u8 sa[ETH_ALEN];        /* STA addr */
1096         __be16 len;             /* 6 */
1097         u8 dsap;                /* 0 */
1098         u8 ssap;                /* 0 */
1099         u8 control;
1100         u8 xid_info[3];
1101 } __packed;
1102
1103 static void ieee80211_send_layer2_update(struct sta_info *sta)
1104 {
1105         struct iapp_layer2_update *msg;
1106         struct sk_buff *skb;
1107
1108         /* Send Level 2 Update Frame to update forwarding tables in layer 2
1109          * bridge devices */
1110
1111         skb = dev_alloc_skb(sizeof(*msg));
1112         if (!skb)
1113                 return;
1114         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1115
1116         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1117          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1118
1119         eth_broadcast_addr(msg->da);
1120         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1121         msg->len = htons(6);
1122         msg->dsap = 0;
1123         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
1124         msg->control = 0xaf;    /* XID response lsb.1111F101.
1125                                  * F=0 (no poll command; unsolicited frame) */
1126         msg->xid_info[0] = 0x81;        /* XID format identifier */
1127         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
1128         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
1129
1130         skb->dev = sta->sdata->dev;
1131         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1132         memset(skb->cb, 0, sizeof(skb->cb));
1133         netif_rx_ni(skb);
1134 }
1135
1136 static int sta_apply_auth_flags(struct ieee80211_local *local,
1137                                 struct sta_info *sta,
1138                                 u32 mask, u32 set)
1139 {
1140         int ret;
1141
1142         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1143             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1144             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1145                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1146                 if (ret)
1147                         return ret;
1148         }
1149
1150         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1151             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1152             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1153                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1154                 if (ret)
1155                         return ret;
1156         }
1157
1158         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1159                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1160                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1161                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1162                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1163                 else
1164                         ret = 0;
1165                 if (ret)
1166                         return ret;
1167         }
1168
1169         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1170             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1171             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1172                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1173                 if (ret)
1174                         return ret;
1175         }
1176
1177         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1178             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1179             test_sta_flag(sta, WLAN_STA_AUTH)) {
1180                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1181                 if (ret)
1182                         return ret;
1183         }
1184
1185         return 0;
1186 }
1187
1188 static int sta_apply_parameters(struct ieee80211_local *local,
1189                                 struct sta_info *sta,
1190                                 struct station_parameters *params)
1191 {
1192         int ret = 0;
1193         u32 rates;
1194         int i, j;
1195         struct ieee80211_supported_band *sband;
1196         struct ieee80211_sub_if_data *sdata = sta->sdata;
1197         enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1198         u32 mask, set;
1199
1200         sband = local->hw.wiphy->bands[band];
1201
1202         mask = params->sta_flags_mask;
1203         set = params->sta_flags_set;
1204
1205         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1206                 /*
1207                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1208                  * API but must follow AUTHENTICATED for driver state.
1209                  */
1210                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1211                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1212                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1213                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1214         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1215                 /*
1216                  * TDLS -- everything follows authorized, but
1217                  * only becoming authorized is possible, not
1218                  * going back
1219                  */
1220                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1221                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1222                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1223                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1224                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1225                 }
1226         }
1227
1228         ret = sta_apply_auth_flags(local, sta, mask, set);
1229         if (ret)
1230                 return ret;
1231
1232         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1233                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1234                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1235                 else
1236                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1237         }
1238
1239         if (mask & BIT(NL80211_STA_FLAG_WME)) {
1240                 if (set & BIT(NL80211_STA_FLAG_WME)) {
1241                         set_sta_flag(sta, WLAN_STA_WME);
1242                         sta->sta.wme = true;
1243                 } else {
1244                         clear_sta_flag(sta, WLAN_STA_WME);
1245                         sta->sta.wme = false;
1246                 }
1247         }
1248
1249         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1250                 if (set & BIT(NL80211_STA_FLAG_MFP))
1251                         set_sta_flag(sta, WLAN_STA_MFP);
1252                 else
1253                         clear_sta_flag(sta, WLAN_STA_MFP);
1254         }
1255
1256         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1257                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1258                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1259                 else
1260                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1261         }
1262
1263         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1264                 sta->sta.uapsd_queues = params->uapsd_queues;
1265                 sta->sta.max_sp = params->max_sp;
1266         }
1267
1268         /*
1269          * cfg80211 validates this (1-2007) and allows setting the AID
1270          * only when creating a new station entry
1271          */
1272         if (params->aid)
1273                 sta->sta.aid = params->aid;
1274
1275         /*
1276          * Some of the following updates would be racy if called on an
1277          * existing station, via ieee80211_change_station(). However,
1278          * all such changes are rejected by cfg80211 except for updates
1279          * changing the supported rates on an existing but not yet used
1280          * TDLS peer.
1281          */
1282
1283         if (params->listen_interval >= 0)
1284                 sta->listen_interval = params->listen_interval;
1285
1286         if (params->supported_rates) {
1287                 rates = 0;
1288
1289                 for (i = 0; i < params->supported_rates_len; i++) {
1290                         int rate = (params->supported_rates[i] & 0x7f) * 5;
1291                         for (j = 0; j < sband->n_bitrates; j++) {
1292                                 if (sband->bitrates[j].bitrate == rate)
1293                                         rates |= BIT(j);
1294                         }
1295                 }
1296                 sta->sta.supp_rates[band] = rates;
1297         }
1298
1299         if (params->ht_capa)
1300                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1301                                                   params->ht_capa, sta);
1302
1303         if (params->vht_capa)
1304                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1305                                                     params->vht_capa, sta);
1306
1307         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1308 #ifdef CONFIG_MAC80211_MESH
1309                 u32 changed = 0;
1310
1311                 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1312                         switch (params->plink_state) {
1313                         case NL80211_PLINK_ESTAB:
1314                                 if (sta->plink_state != NL80211_PLINK_ESTAB)
1315                                         changed = mesh_plink_inc_estab_count(
1316                                                         sdata);
1317                                 sta->plink_state = params->plink_state;
1318
1319                                 ieee80211_mps_sta_status_update(sta);
1320                                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1321                                               sdata->u.mesh.mshcfg.power_mode);
1322                                 break;
1323                         case NL80211_PLINK_LISTEN:
1324                         case NL80211_PLINK_BLOCKED:
1325                         case NL80211_PLINK_OPN_SNT:
1326                         case NL80211_PLINK_OPN_RCVD:
1327                         case NL80211_PLINK_CNF_RCVD:
1328                         case NL80211_PLINK_HOLDING:
1329                                 if (sta->plink_state == NL80211_PLINK_ESTAB)
1330                                         changed = mesh_plink_dec_estab_count(
1331                                                         sdata);
1332                                 sta->plink_state = params->plink_state;
1333
1334                                 ieee80211_mps_sta_status_update(sta);
1335                                 changed |=
1336                                       ieee80211_mps_local_status_update(sdata);
1337                                 break;
1338                         default:
1339                                 /*  nothing  */
1340                                 break;
1341                         }
1342                 }
1343
1344                 switch (params->plink_action) {
1345                 case NL80211_PLINK_ACTION_NO_ACTION:
1346                         /* nothing */
1347                         break;
1348                 case NL80211_PLINK_ACTION_OPEN:
1349                         changed |= mesh_plink_open(sta);
1350                         break;
1351                 case NL80211_PLINK_ACTION_BLOCK:
1352                         changed |= mesh_plink_block(sta);
1353                         break;
1354                 }
1355
1356                 if (params->local_pm)
1357                         changed |=
1358                               ieee80211_mps_set_sta_local_pm(sta,
1359                                                              params->local_pm);
1360                 ieee80211_bss_info_change_notify(sdata, changed);
1361 #endif
1362         }
1363
1364         return 0;
1365 }
1366
1367 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1368                                  u8 *mac, struct station_parameters *params)
1369 {
1370         struct ieee80211_local *local = wiphy_priv(wiphy);
1371         struct sta_info *sta;
1372         struct ieee80211_sub_if_data *sdata;
1373         int err;
1374         int layer2_update;
1375
1376         if (params->vlan) {
1377                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1378
1379                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1380                     sdata->vif.type != NL80211_IFTYPE_AP)
1381                         return -EINVAL;
1382         } else
1383                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1384
1385         if (ether_addr_equal(mac, sdata->vif.addr))
1386                 return -EINVAL;
1387
1388         if (is_multicast_ether_addr(mac))
1389                 return -EINVAL;
1390
1391         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1392         if (!sta)
1393                 return -ENOMEM;
1394
1395         /*
1396          * defaults -- if userspace wants something else we'll
1397          * change it accordingly in sta_apply_parameters()
1398          */
1399         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1400                 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1401                 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1402         }
1403
1404         err = sta_apply_parameters(local, sta, params);
1405         if (err) {
1406                 sta_info_free(local, sta);
1407                 return err;
1408         }
1409
1410         /*
1411          * for TDLS, rate control should be initialized only when
1412          * rates are known and station is marked authorized
1413          */
1414         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1415                 rate_control_rate_init(sta);
1416
1417         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1418                 sdata->vif.type == NL80211_IFTYPE_AP;
1419
1420         err = sta_info_insert_rcu(sta);
1421         if (err) {
1422                 rcu_read_unlock();
1423                 return err;
1424         }
1425
1426         if (layer2_update)
1427                 ieee80211_send_layer2_update(sta);
1428
1429         rcu_read_unlock();
1430
1431         return 0;
1432 }
1433
1434 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1435                                  u8 *mac)
1436 {
1437         struct ieee80211_sub_if_data *sdata;
1438
1439         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1440
1441         if (mac)
1442                 return sta_info_destroy_addr_bss(sdata, mac);
1443
1444         sta_info_flush(sdata);
1445         return 0;
1446 }
1447
1448 static int ieee80211_change_station(struct wiphy *wiphy,
1449                                     struct net_device *dev, u8 *mac,
1450                                     struct station_parameters *params)
1451 {
1452         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1453         struct ieee80211_local *local = wiphy_priv(wiphy);
1454         struct sta_info *sta;
1455         struct ieee80211_sub_if_data *vlansdata;
1456         enum cfg80211_station_type statype;
1457         int err;
1458
1459         mutex_lock(&local->sta_mtx);
1460
1461         sta = sta_info_get_bss(sdata, mac);
1462         if (!sta) {
1463                 err = -ENOENT;
1464                 goto out_err;
1465         }
1466
1467         switch (sdata->vif.type) {
1468         case NL80211_IFTYPE_MESH_POINT:
1469                 if (sdata->u.mesh.user_mpm)
1470                         statype = CFG80211_STA_MESH_PEER_USER;
1471                 else
1472                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1473                 break;
1474         case NL80211_IFTYPE_ADHOC:
1475                 statype = CFG80211_STA_IBSS;
1476                 break;
1477         case NL80211_IFTYPE_STATION:
1478                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1479                         statype = CFG80211_STA_AP_STA;
1480                         break;
1481                 }
1482                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1483                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1484                 else
1485                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1486                 break;
1487         case NL80211_IFTYPE_AP:
1488         case NL80211_IFTYPE_AP_VLAN:
1489                 statype = CFG80211_STA_AP_CLIENT;
1490                 break;
1491         default:
1492                 err = -EOPNOTSUPP;
1493                 goto out_err;
1494         }
1495
1496         err = cfg80211_check_station_change(wiphy, params, statype);
1497         if (err)
1498                 goto out_err;
1499
1500         if (params->vlan && params->vlan != sta->sdata->dev) {
1501                 bool prev_4addr = false;
1502                 bool new_4addr = false;
1503
1504                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1505
1506                 if (params->vlan->ieee80211_ptr->use_4addr) {
1507                         if (vlansdata->u.vlan.sta) {
1508                                 err = -EBUSY;
1509                                 goto out_err;
1510                         }
1511
1512                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1513                         new_4addr = true;
1514                 }
1515
1516                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1517                     sta->sdata->u.vlan.sta) {
1518                         rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1519                         prev_4addr = true;
1520                 }
1521
1522                 sta->sdata = vlansdata;
1523
1524                 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1525                     prev_4addr != new_4addr) {
1526                         if (new_4addr)
1527                                 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1528                         else
1529                                 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1530                 }
1531
1532                 ieee80211_send_layer2_update(sta);
1533         }
1534
1535         err = sta_apply_parameters(local, sta, params);
1536         if (err)
1537                 goto out_err;
1538
1539         /* When peer becomes authorized, init rate control as well */
1540         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1541             test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1542                 rate_control_rate_init(sta);
1543
1544         mutex_unlock(&local->sta_mtx);
1545
1546         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1547             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1548                 ieee80211_recalc_ps(local, -1);
1549                 ieee80211_recalc_ps_vif(sdata);
1550         }
1551
1552         return 0;
1553 out_err:
1554         mutex_unlock(&local->sta_mtx);
1555         return err;
1556 }
1557
1558 #ifdef CONFIG_MAC80211_MESH
1559 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1560                                  u8 *dst, u8 *next_hop)
1561 {
1562         struct ieee80211_sub_if_data *sdata;
1563         struct mesh_path *mpath;
1564         struct sta_info *sta;
1565
1566         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1567
1568         rcu_read_lock();
1569         sta = sta_info_get(sdata, next_hop);
1570         if (!sta) {
1571                 rcu_read_unlock();
1572                 return -ENOENT;
1573         }
1574
1575         mpath = mesh_path_add(sdata, dst);
1576         if (IS_ERR(mpath)) {
1577                 rcu_read_unlock();
1578                 return PTR_ERR(mpath);
1579         }
1580
1581         mesh_path_fix_nexthop(mpath, sta);
1582
1583         rcu_read_unlock();
1584         return 0;
1585 }
1586
1587 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1588                                u8 *dst)
1589 {
1590         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1591
1592         if (dst)
1593                 return mesh_path_del(sdata, dst);
1594
1595         mesh_path_flush_by_iface(sdata);
1596         return 0;
1597 }
1598
1599 static int ieee80211_change_mpath(struct wiphy *wiphy,
1600                                     struct net_device *dev,
1601                                     u8 *dst, u8 *next_hop)
1602 {
1603         struct ieee80211_sub_if_data *sdata;
1604         struct mesh_path *mpath;
1605         struct sta_info *sta;
1606
1607         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1608
1609         rcu_read_lock();
1610
1611         sta = sta_info_get(sdata, next_hop);
1612         if (!sta) {
1613                 rcu_read_unlock();
1614                 return -ENOENT;
1615         }
1616
1617         mpath = mesh_path_lookup(sdata, dst);
1618         if (!mpath) {
1619                 rcu_read_unlock();
1620                 return -ENOENT;
1621         }
1622
1623         mesh_path_fix_nexthop(mpath, sta);
1624
1625         rcu_read_unlock();
1626         return 0;
1627 }
1628
1629 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1630                             struct mpath_info *pinfo)
1631 {
1632         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1633
1634         if (next_hop_sta)
1635                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1636         else
1637                 memset(next_hop, 0, ETH_ALEN);
1638
1639         memset(pinfo, 0, sizeof(*pinfo));
1640
1641         pinfo->generation = mesh_paths_generation;
1642
1643         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1644                         MPATH_INFO_SN |
1645                         MPATH_INFO_METRIC |
1646                         MPATH_INFO_EXPTIME |
1647                         MPATH_INFO_DISCOVERY_TIMEOUT |
1648                         MPATH_INFO_DISCOVERY_RETRIES |
1649                         MPATH_INFO_FLAGS;
1650
1651         pinfo->frame_qlen = mpath->frame_queue.qlen;
1652         pinfo->sn = mpath->sn;
1653         pinfo->metric = mpath->metric;
1654         if (time_before(jiffies, mpath->exp_time))
1655                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1656         pinfo->discovery_timeout =
1657                         jiffies_to_msecs(mpath->discovery_timeout);
1658         pinfo->discovery_retries = mpath->discovery_retries;
1659         if (mpath->flags & MESH_PATH_ACTIVE)
1660                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1661         if (mpath->flags & MESH_PATH_RESOLVING)
1662                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1663         if (mpath->flags & MESH_PATH_SN_VALID)
1664                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1665         if (mpath->flags & MESH_PATH_FIXED)
1666                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1667         if (mpath->flags & MESH_PATH_RESOLVED)
1668                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1669 }
1670
1671 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1672                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1673
1674 {
1675         struct ieee80211_sub_if_data *sdata;
1676         struct mesh_path *mpath;
1677
1678         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1679
1680         rcu_read_lock();
1681         mpath = mesh_path_lookup(sdata, dst);
1682         if (!mpath) {
1683                 rcu_read_unlock();
1684                 return -ENOENT;
1685         }
1686         memcpy(dst, mpath->dst, ETH_ALEN);
1687         mpath_set_pinfo(mpath, next_hop, pinfo);
1688         rcu_read_unlock();
1689         return 0;
1690 }
1691
1692 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1693                                  int idx, u8 *dst, u8 *next_hop,
1694                                  struct mpath_info *pinfo)
1695 {
1696         struct ieee80211_sub_if_data *sdata;
1697         struct mesh_path *mpath;
1698
1699         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1700
1701         rcu_read_lock();
1702         mpath = mesh_path_lookup_by_idx(sdata, idx);
1703         if (!mpath) {
1704                 rcu_read_unlock();
1705                 return -ENOENT;
1706         }
1707         memcpy(dst, mpath->dst, ETH_ALEN);
1708         mpath_set_pinfo(mpath, next_hop, pinfo);
1709         rcu_read_unlock();
1710         return 0;
1711 }
1712
1713 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1714                                 struct net_device *dev,
1715                                 struct mesh_config *conf)
1716 {
1717         struct ieee80211_sub_if_data *sdata;
1718         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1719
1720         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1721         return 0;
1722 }
1723
1724 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1725 {
1726         return (mask >> (parm-1)) & 0x1;
1727 }
1728
1729 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1730                 const struct mesh_setup *setup)
1731 {
1732         u8 *new_ie;
1733         const u8 *old_ie;
1734         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1735                                         struct ieee80211_sub_if_data, u.mesh);
1736
1737         /* allocate information elements */
1738         new_ie = NULL;
1739         old_ie = ifmsh->ie;
1740
1741         if (setup->ie_len) {
1742                 new_ie = kmemdup(setup->ie, setup->ie_len,
1743                                 GFP_KERNEL);
1744                 if (!new_ie)
1745                         return -ENOMEM;
1746         }
1747         ifmsh->ie_len = setup->ie_len;
1748         ifmsh->ie = new_ie;
1749         kfree(old_ie);
1750
1751         /* now copy the rest of the setup parameters */
1752         ifmsh->mesh_id_len = setup->mesh_id_len;
1753         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1754         ifmsh->mesh_sp_id = setup->sync_method;
1755         ifmsh->mesh_pp_id = setup->path_sel_proto;
1756         ifmsh->mesh_pm_id = setup->path_metric;
1757         ifmsh->user_mpm = setup->user_mpm;
1758         ifmsh->mesh_auth_id = setup->auth_id;
1759         ifmsh->security = IEEE80211_MESH_SEC_NONE;
1760         if (setup->is_authenticated)
1761                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1762         if (setup->is_secure)
1763                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1764
1765         /* mcast rate setting in Mesh Node */
1766         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1767                                                 sizeof(setup->mcast_rate));
1768         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1769
1770         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1771         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1772
1773         return 0;
1774 }
1775
1776 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1777                                         struct net_device *dev, u32 mask,
1778                                         const struct mesh_config *nconf)
1779 {
1780         struct mesh_config *conf;
1781         struct ieee80211_sub_if_data *sdata;
1782         struct ieee80211_if_mesh *ifmsh;
1783
1784         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1785         ifmsh = &sdata->u.mesh;
1786
1787         /* Set the config options which we are interested in setting */
1788         conf = &(sdata->u.mesh.mshcfg);
1789         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1790                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1791         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1792                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1793         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1794                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1795         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1796                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1797         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1798                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1799         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1800                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1801         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1802                 conf->element_ttl = nconf->element_ttl;
1803         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1804                 if (ifmsh->user_mpm)
1805                         return -EBUSY;
1806                 conf->auto_open_plinks = nconf->auto_open_plinks;
1807         }
1808         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1809                 conf->dot11MeshNbrOffsetMaxNeighbor =
1810                         nconf->dot11MeshNbrOffsetMaxNeighbor;
1811         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1812                 conf->dot11MeshHWMPmaxPREQretries =
1813                         nconf->dot11MeshHWMPmaxPREQretries;
1814         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1815                 conf->path_refresh_time = nconf->path_refresh_time;
1816         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1817                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1818         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1819                 conf->dot11MeshHWMPactivePathTimeout =
1820                         nconf->dot11MeshHWMPactivePathTimeout;
1821         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1822                 conf->dot11MeshHWMPpreqMinInterval =
1823                         nconf->dot11MeshHWMPpreqMinInterval;
1824         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1825                 conf->dot11MeshHWMPperrMinInterval =
1826                         nconf->dot11MeshHWMPperrMinInterval;
1827         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1828                            mask))
1829                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1830                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1831         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1832                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1833                 ieee80211_mesh_root_setup(ifmsh);
1834         }
1835         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1836                 /* our current gate announcement implementation rides on root
1837                  * announcements, so require this ifmsh to also be a root node
1838                  * */
1839                 if (nconf->dot11MeshGateAnnouncementProtocol &&
1840                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1841                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1842                         ieee80211_mesh_root_setup(ifmsh);
1843                 }
1844                 conf->dot11MeshGateAnnouncementProtocol =
1845                         nconf->dot11MeshGateAnnouncementProtocol;
1846         }
1847         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1848                 conf->dot11MeshHWMPRannInterval =
1849                         nconf->dot11MeshHWMPRannInterval;
1850         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1851                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1852         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1853                 /* our RSSI threshold implementation is supported only for
1854                  * devices that report signal in dBm.
1855                  */
1856                 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1857                         return -ENOTSUPP;
1858                 conf->rssi_threshold = nconf->rssi_threshold;
1859         }
1860         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1861                 conf->ht_opmode = nconf->ht_opmode;
1862                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1863                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1864         }
1865         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1866                 conf->dot11MeshHWMPactivePathToRootTimeout =
1867                         nconf->dot11MeshHWMPactivePathToRootTimeout;
1868         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1869                 conf->dot11MeshHWMProotInterval =
1870                         nconf->dot11MeshHWMProotInterval;
1871         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1872                 conf->dot11MeshHWMPconfirmationInterval =
1873                         nconf->dot11MeshHWMPconfirmationInterval;
1874         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1875                 conf->power_mode = nconf->power_mode;
1876                 ieee80211_mps_local_status_update(sdata);
1877         }
1878         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1879                 conf->dot11MeshAwakeWindowDuration =
1880                         nconf->dot11MeshAwakeWindowDuration;
1881         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1882                 conf->plink_timeout = nconf->plink_timeout;
1883         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1884         return 0;
1885 }
1886
1887 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1888                                const struct mesh_config *conf,
1889                                const struct mesh_setup *setup)
1890 {
1891         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1892         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1893         int err;
1894
1895         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1896         err = copy_mesh_setup(ifmsh, setup);
1897         if (err)
1898                 return err;
1899
1900         /* can mesh use other SMPS modes? */
1901         sdata->smps_mode = IEEE80211_SMPS_OFF;
1902         sdata->needed_rx_chains = sdata->local->rx_chains;
1903
1904         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1905                                         IEEE80211_CHANCTX_SHARED);
1906         if (err)
1907                 return err;
1908
1909         return ieee80211_start_mesh(sdata);
1910 }
1911
1912 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1913 {
1914         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1915
1916         ieee80211_stop_mesh(sdata);
1917         ieee80211_vif_release_channel(sdata);
1918
1919         return 0;
1920 }
1921 #endif
1922
1923 static int ieee80211_change_bss(struct wiphy *wiphy,
1924                                 struct net_device *dev,
1925                                 struct bss_parameters *params)
1926 {
1927         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1928         enum ieee80211_band band;
1929         u32 changed = 0;
1930
1931         if (!rtnl_dereference(sdata->u.ap.beacon))
1932                 return -ENOENT;
1933
1934         band = ieee80211_get_sdata_band(sdata);
1935
1936         if (params->use_cts_prot >= 0) {
1937                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1938                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1939         }
1940         if (params->use_short_preamble >= 0) {
1941                 sdata->vif.bss_conf.use_short_preamble =
1942                         params->use_short_preamble;
1943                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1944         }
1945
1946         if (!sdata->vif.bss_conf.use_short_slot &&
1947             band == IEEE80211_BAND_5GHZ) {
1948                 sdata->vif.bss_conf.use_short_slot = true;
1949                 changed |= BSS_CHANGED_ERP_SLOT;
1950         }
1951
1952         if (params->use_short_slot_time >= 0) {
1953                 sdata->vif.bss_conf.use_short_slot =
1954                         params->use_short_slot_time;
1955                 changed |= BSS_CHANGED_ERP_SLOT;
1956         }
1957
1958         if (params->basic_rates) {
1959                 int i, j;
1960                 u32 rates = 0;
1961                 struct ieee80211_supported_band *sband = wiphy->bands[band];
1962
1963                 for (i = 0; i < params->basic_rates_len; i++) {
1964                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1965                         for (j = 0; j < sband->n_bitrates; j++) {
1966                                 if (sband->bitrates[j].bitrate == rate)
1967                                         rates |= BIT(j);
1968                         }
1969                 }
1970                 sdata->vif.bss_conf.basic_rates = rates;
1971                 changed |= BSS_CHANGED_BASIC_RATES;
1972         }
1973
1974         if (params->ap_isolate >= 0) {
1975                 if (params->ap_isolate)
1976                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1977                 else
1978                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1979         }
1980
1981         if (params->ht_opmode >= 0) {
1982                 sdata->vif.bss_conf.ht_operation_mode =
1983                         (u16) params->ht_opmode;
1984                 changed |= BSS_CHANGED_HT;
1985         }
1986
1987         if (params->p2p_ctwindow >= 0) {
1988                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1989                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1990                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1991                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1992                 changed |= BSS_CHANGED_P2P_PS;
1993         }
1994
1995         if (params->p2p_opp_ps > 0) {
1996                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1997                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1998                 changed |= BSS_CHANGED_P2P_PS;
1999         } else if (params->p2p_opp_ps == 0) {
2000                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2001                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2002                 changed |= BSS_CHANGED_P2P_PS;
2003         }
2004
2005         ieee80211_bss_info_change_notify(sdata, changed);
2006
2007         return 0;
2008 }
2009
2010 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2011                                     struct net_device *dev,
2012                                     struct ieee80211_txq_params *params)
2013 {
2014         struct ieee80211_local *local = wiphy_priv(wiphy);
2015         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2016         struct ieee80211_tx_queue_params p;
2017
2018         if (!local->ops->conf_tx)
2019                 return -EOPNOTSUPP;
2020
2021         if (local->hw.queues < IEEE80211_NUM_ACS)
2022                 return -EOPNOTSUPP;
2023
2024         memset(&p, 0, sizeof(p));
2025         p.aifs = params->aifs;
2026         p.cw_max = params->cwmax;
2027         p.cw_min = params->cwmin;
2028         p.txop = params->txop;
2029
2030         /*
2031          * Setting tx queue params disables u-apsd because it's only
2032          * called in master mode.
2033          */
2034         p.uapsd = false;
2035
2036         sdata->tx_conf[params->ac] = p;
2037         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2038                 wiphy_debug(local->hw.wiphy,
2039                             "failed to set TX queue parameters for AC %d\n",
2040                             params->ac);
2041                 return -EINVAL;
2042         }
2043
2044         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2045
2046         return 0;
2047 }
2048
2049 #ifdef CONFIG_PM
2050 static int ieee80211_suspend(struct wiphy *wiphy,
2051                              struct cfg80211_wowlan *wowlan)
2052 {
2053         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2054 }
2055
2056 static int ieee80211_resume(struct wiphy *wiphy)
2057 {
2058         return __ieee80211_resume(wiphy_priv(wiphy));
2059 }
2060 #else
2061 #define ieee80211_suspend NULL
2062 #define ieee80211_resume NULL
2063 #endif
2064
2065 static int ieee80211_scan(struct wiphy *wiphy,
2066                           struct cfg80211_scan_request *req)
2067 {
2068         struct ieee80211_sub_if_data *sdata;
2069
2070         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2071
2072         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2073         case NL80211_IFTYPE_STATION:
2074         case NL80211_IFTYPE_ADHOC:
2075         case NL80211_IFTYPE_MESH_POINT:
2076         case NL80211_IFTYPE_P2P_CLIENT:
2077         case NL80211_IFTYPE_P2P_DEVICE:
2078                 break;
2079         case NL80211_IFTYPE_P2P_GO:
2080                 if (sdata->local->ops->hw_scan)
2081                         break;
2082                 /*
2083                  * FIXME: implement NoA while scanning in software,
2084                  * for now fall through to allow scanning only when
2085                  * beaconing hasn't been configured yet
2086                  */
2087         case NL80211_IFTYPE_AP:
2088                 /*
2089                  * If the scan has been forced (and the driver supports
2090                  * forcing), don't care about being beaconing already.
2091                  * This will create problems to the attached stations (e.g. all
2092                  * the  frames sent while scanning on other channel will be
2093                  * lost)
2094                  */
2095                 if (sdata->u.ap.beacon &&
2096                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2097                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2098                         return -EOPNOTSUPP;
2099                 break;
2100         default:
2101                 return -EOPNOTSUPP;
2102         }
2103
2104         return ieee80211_request_scan(sdata, req);
2105 }
2106
2107 static int
2108 ieee80211_sched_scan_start(struct wiphy *wiphy,
2109                            struct net_device *dev,
2110                            struct cfg80211_sched_scan_request *req)
2111 {
2112         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2113
2114         if (!sdata->local->ops->sched_scan_start)
2115                 return -EOPNOTSUPP;
2116
2117         return ieee80211_request_sched_scan_start(sdata, req);
2118 }
2119
2120 static int
2121 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2122 {
2123         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2124
2125         if (!sdata->local->ops->sched_scan_stop)
2126                 return -EOPNOTSUPP;
2127
2128         return ieee80211_request_sched_scan_stop(sdata);
2129 }
2130
2131 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2132                           struct cfg80211_auth_request *req)
2133 {
2134         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2135 }
2136
2137 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2138                            struct cfg80211_assoc_request *req)
2139 {
2140         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2141 }
2142
2143 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2144                             struct cfg80211_deauth_request *req)
2145 {
2146         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2147 }
2148
2149 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2150                               struct cfg80211_disassoc_request *req)
2151 {
2152         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2153 }
2154
2155 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2156                                struct cfg80211_ibss_params *params)
2157 {
2158         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2159 }
2160
2161 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2162 {
2163         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2164 }
2165
2166 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2167                                     int rate[IEEE80211_NUM_BANDS])
2168 {
2169         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2170
2171         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2172                sizeof(int) * IEEE80211_NUM_BANDS);
2173
2174         return 0;
2175 }
2176
2177 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2178 {
2179         struct ieee80211_local *local = wiphy_priv(wiphy);
2180         int err;
2181
2182         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2183                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2184
2185                 if (err)
2186                         return err;
2187         }
2188
2189         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2190                 err = drv_set_coverage_class(local, wiphy->coverage_class);
2191
2192                 if (err)
2193                         return err;
2194         }
2195
2196         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2197                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2198
2199                 if (err)
2200                         return err;
2201         }
2202
2203         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2204                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2205                         return -EINVAL;
2206                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2207         }
2208         if (changed & WIPHY_PARAM_RETRY_LONG) {
2209                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2210                         return -EINVAL;
2211                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2212         }
2213         if (changed &
2214             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2215                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2216
2217         return 0;
2218 }
2219
2220 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2221                                   struct wireless_dev *wdev,
2222                                   enum nl80211_tx_power_setting type, int mbm)
2223 {
2224         struct ieee80211_local *local = wiphy_priv(wiphy);
2225         struct ieee80211_sub_if_data *sdata;
2226
2227         if (wdev) {
2228                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2229
2230                 switch (type) {
2231                 case NL80211_TX_POWER_AUTOMATIC:
2232                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2233                         break;
2234                 case NL80211_TX_POWER_LIMITED:
2235                 case NL80211_TX_POWER_FIXED:
2236                         if (mbm < 0 || (mbm % 100))
2237                                 return -EOPNOTSUPP;
2238                         sdata->user_power_level = MBM_TO_DBM(mbm);
2239                         break;
2240                 }
2241
2242                 ieee80211_recalc_txpower(sdata);
2243
2244                 return 0;
2245         }
2246
2247         switch (type) {
2248         case NL80211_TX_POWER_AUTOMATIC:
2249                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2250                 break;
2251         case NL80211_TX_POWER_LIMITED:
2252         case NL80211_TX_POWER_FIXED:
2253                 if (mbm < 0 || (mbm % 100))
2254                         return -EOPNOTSUPP;
2255                 local->user_power_level = MBM_TO_DBM(mbm);
2256                 break;
2257         }
2258
2259         mutex_lock(&local->iflist_mtx);
2260         list_for_each_entry(sdata, &local->interfaces, list)
2261                 sdata->user_power_level = local->user_power_level;
2262         list_for_each_entry(sdata, &local->interfaces, list)
2263                 ieee80211_recalc_txpower(sdata);
2264         mutex_unlock(&local->iflist_mtx);
2265
2266         return 0;
2267 }
2268
2269 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2270                                   struct wireless_dev *wdev,
2271                                   int *dbm)
2272 {
2273         struct ieee80211_local *local = wiphy_priv(wiphy);
2274         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2275
2276         if (!local->use_chanctx)
2277                 *dbm = local->hw.conf.power_level;
2278         else
2279                 *dbm = sdata->vif.bss_conf.txpower;
2280
2281         return 0;
2282 }
2283
2284 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2285                                   const u8 *addr)
2286 {
2287         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2288
2289         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2290
2291         return 0;
2292 }
2293
2294 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2295 {
2296         struct ieee80211_local *local = wiphy_priv(wiphy);
2297
2298         drv_rfkill_poll(local);
2299 }
2300
2301 #ifdef CONFIG_NL80211_TESTMODE
2302 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
2303 {
2304         struct ieee80211_local *local = wiphy_priv(wiphy);
2305
2306         if (!local->ops->testmode_cmd)
2307                 return -EOPNOTSUPP;
2308
2309         return local->ops->testmode_cmd(&local->hw, data, len);
2310 }
2311
2312 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2313                                    struct sk_buff *skb,
2314                                    struct netlink_callback *cb,
2315                                    void *data, int len)
2316 {
2317         struct ieee80211_local *local = wiphy_priv(wiphy);
2318
2319         if (!local->ops->testmode_dump)
2320                 return -EOPNOTSUPP;
2321
2322         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2323 }
2324 #endif
2325
2326 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
2327                              enum ieee80211_smps_mode smps_mode)
2328 {
2329         const u8 *ap;
2330         enum ieee80211_smps_mode old_req;
2331         int err;
2332
2333         lockdep_assert_held(&sdata->wdev.mtx);
2334
2335         old_req = sdata->u.mgd.req_smps;
2336         sdata->u.mgd.req_smps = smps_mode;
2337
2338         if (old_req == smps_mode &&
2339             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2340                 return 0;
2341
2342         /*
2343          * If not associated, or current association is not an HT
2344          * association, there's no need to do anything, just store
2345          * the new value until we associate.
2346          */
2347         if (!sdata->u.mgd.associated ||
2348             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2349                 return 0;
2350
2351         ap = sdata->u.mgd.associated->bssid;
2352
2353         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2354                 if (sdata->u.mgd.powersave)
2355                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2356                 else
2357                         smps_mode = IEEE80211_SMPS_OFF;
2358         }
2359
2360         /* send SM PS frame to AP */
2361         err = ieee80211_send_smps_action(sdata, smps_mode,
2362                                          ap, ap);
2363         if (err)
2364                 sdata->u.mgd.req_smps = old_req;
2365
2366         return err;
2367 }
2368
2369 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2370                                     bool enabled, int timeout)
2371 {
2372         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2373         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2374
2375         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
2376             sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
2377                 return -EOPNOTSUPP;
2378
2379         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2380                 return -EOPNOTSUPP;
2381
2382         if (enabled == sdata->u.mgd.powersave &&
2383             timeout == local->dynamic_ps_forced_timeout)
2384                 return 0;
2385
2386         sdata->u.mgd.powersave = enabled;
2387         local->dynamic_ps_forced_timeout = timeout;
2388
2389         /* no change, but if automatic follow powersave */
2390         sdata_lock(sdata);
2391         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
2392         sdata_unlock(sdata);
2393
2394         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2395                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2396
2397         ieee80211_recalc_ps(local, -1);
2398         ieee80211_recalc_ps_vif(sdata);
2399
2400         return 0;
2401 }
2402
2403 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2404                                          struct net_device *dev,
2405                                          s32 rssi_thold, u32 rssi_hyst)
2406 {
2407         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2408         struct ieee80211_vif *vif = &sdata->vif;
2409         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2410
2411         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2412             rssi_hyst == bss_conf->cqm_rssi_hyst)
2413                 return 0;
2414
2415         bss_conf->cqm_rssi_thold = rssi_thold;
2416         bss_conf->cqm_rssi_hyst = rssi_hyst;
2417
2418         /* tell the driver upon association, unless already associated */
2419         if (sdata->u.mgd.associated &&
2420             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2421                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2422
2423         return 0;
2424 }
2425
2426 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2427                                       struct net_device *dev,
2428                                       const u8 *addr,
2429                                       const struct cfg80211_bitrate_mask *mask)
2430 {
2431         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2432         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2433         int i, ret;
2434
2435         if (!ieee80211_sdata_running(sdata))
2436                 return -ENETDOWN;
2437
2438         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2439                 ret = drv_set_bitrate_mask(local, sdata, mask);
2440                 if (ret)
2441                         return ret;
2442         }
2443
2444         for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2445                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2446                 int j;
2447
2448                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2449                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
2450                        sizeof(mask->control[i].mcs));
2451
2452                 sdata->rc_has_mcs_mask[i] = false;
2453                 if (!sband)
2454                         continue;
2455
2456                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2457                         if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2458                                 sdata->rc_has_mcs_mask[i] = true;
2459                                 break;
2460                         }
2461         }
2462
2463         return 0;
2464 }
2465
2466 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2467                                     struct ieee80211_sub_if_data *sdata,
2468                                     struct ieee80211_channel *channel,
2469                                     unsigned int duration, u64 *cookie,
2470                                     struct sk_buff *txskb,
2471                                     enum ieee80211_roc_type type)
2472 {
2473         struct ieee80211_roc_work *roc, *tmp;
2474         bool queued = false;
2475         int ret;
2476
2477         lockdep_assert_held(&local->mtx);
2478
2479         if (local->use_chanctx && !local->ops->remain_on_channel)
2480                 return -EOPNOTSUPP;
2481
2482         roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2483         if (!roc)
2484                 return -ENOMEM;
2485
2486         roc->chan = channel;
2487         roc->duration = duration;
2488         roc->req_duration = duration;
2489         roc->frame = txskb;
2490         roc->type = type;
2491         roc->mgmt_tx_cookie = (unsigned long)txskb;
2492         roc->sdata = sdata;
2493         INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2494         INIT_LIST_HEAD(&roc->dependents);
2495
2496         /* if there's one pending or we're scanning, queue this one */
2497         if (!list_empty(&local->roc_list) ||
2498             local->scanning || local->radar_detect_enabled)
2499                 goto out_check_combine;
2500
2501         /* if not HW assist, just queue & schedule work */
2502         if (!local->ops->remain_on_channel) {
2503                 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2504                 goto out_queue;
2505         }
2506
2507         /* otherwise actually kick it off here (for error handling) */
2508
2509         /*
2510          * If the duration is zero, then the driver
2511          * wouldn't actually do anything. Set it to
2512          * 10 for now.
2513          *
2514          * TODO: cancel the off-channel operation
2515          *       when we get the SKB's TX status and
2516          *       the wait time was zero before.
2517          */
2518         if (!duration)
2519                 duration = 10;
2520
2521         ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2522         if (ret) {
2523                 kfree(roc);
2524                 return ret;
2525         }
2526
2527         roc->started = true;
2528         goto out_queue;
2529
2530  out_check_combine:
2531         list_for_each_entry(tmp, &local->roc_list, list) {
2532                 if (tmp->chan != channel || tmp->sdata != sdata)
2533                         continue;
2534
2535                 /*
2536                  * Extend this ROC if possible:
2537                  *
2538                  * If it hasn't started yet, just increase the duration
2539                  * and add the new one to the list of dependents.
2540                  * If the type of the new ROC has higher priority, modify the
2541                  * type of the previous one to match that of the new one.
2542                  */
2543                 if (!tmp->started) {
2544                         list_add_tail(&roc->list, &tmp->dependents);
2545                         tmp->duration = max(tmp->duration, roc->duration);
2546                         tmp->type = max(tmp->type, roc->type);
2547                         queued = true;
2548                         break;
2549                 }
2550
2551                 /* If it has already started, it's more difficult ... */
2552                 if (local->ops->remain_on_channel) {
2553                         unsigned long j = jiffies;
2554
2555                         /*
2556                          * In the offloaded ROC case, if it hasn't begun, add
2557                          * this new one to the dependent list to be handled
2558                          * when the master one begins. If it has begun,
2559                          * check that there's still a minimum time left and
2560                          * if so, start this one, transmitting the frame, but
2561                          * add it to the list directly after this one with
2562                          * a reduced time so we'll ask the driver to execute
2563                          * it right after finishing the previous one, in the
2564                          * hope that it'll also be executed right afterwards,
2565                          * effectively extending the old one.
2566                          * If there's no minimum time left, just add it to the
2567                          * normal list.
2568                          * TODO: the ROC type is ignored here, assuming that it
2569                          * is better to immediately use the current ROC.
2570                          */
2571                         if (!tmp->hw_begun) {
2572                                 list_add_tail(&roc->list, &tmp->dependents);
2573                                 queued = true;
2574                                 break;
2575                         }
2576
2577                         if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2578                                         tmp->hw_start_time +
2579                                         msecs_to_jiffies(tmp->duration))) {
2580                                 int new_dur;
2581
2582                                 ieee80211_handle_roc_started(roc);
2583
2584                                 new_dur = roc->duration -
2585                                           jiffies_to_msecs(tmp->hw_start_time +
2586                                                            msecs_to_jiffies(
2587                                                                 tmp->duration) -
2588                                                            j);
2589
2590                                 if (new_dur > 0) {
2591                                         /* add right after tmp */
2592                                         list_add(&roc->list, &tmp->list);
2593                                 } else {
2594                                         list_add_tail(&roc->list,
2595                                                       &tmp->dependents);
2596                                 }
2597                                 queued = true;
2598                         }
2599                 } else if (del_timer_sync(&tmp->work.timer)) {
2600                         unsigned long new_end;
2601
2602                         /*
2603                          * In the software ROC case, cancel the timer, if
2604                          * that fails then the finish work is already
2605                          * queued/pending and thus we queue the new ROC
2606                          * normally, if that succeeds then we can extend
2607                          * the timer duration and TX the frame (if any.)
2608                          */
2609
2610                         list_add_tail(&roc->list, &tmp->dependents);
2611                         queued = true;
2612
2613                         new_end = jiffies + msecs_to_jiffies(roc->duration);
2614
2615                         /* ok, it was started & we canceled timer */
2616                         if (time_after(new_end, tmp->work.timer.expires))
2617                                 mod_timer(&tmp->work.timer, new_end);
2618                         else
2619                                 add_timer(&tmp->work.timer);
2620
2621                         ieee80211_handle_roc_started(roc);
2622                 }
2623                 break;
2624         }
2625
2626  out_queue:
2627         if (!queued)
2628                 list_add_tail(&roc->list, &local->roc_list);
2629
2630         /*
2631          * cookie is either the roc cookie (for normal roc)
2632          * or the SKB (for mgmt TX)
2633          */
2634         if (!txskb) {
2635                 /* local->mtx protects this */
2636                 local->roc_cookie_counter++;
2637                 roc->cookie = local->roc_cookie_counter;
2638                 /* wow, you wrapped 64 bits ... more likely a bug */
2639                 if (WARN_ON(roc->cookie == 0)) {
2640                         roc->cookie = 1;
2641                         local->roc_cookie_counter++;
2642                 }
2643                 *cookie = roc->cookie;
2644         } else {
2645                 *cookie = (unsigned long)txskb;
2646         }
2647
2648         return 0;
2649 }
2650
2651 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2652                                        struct wireless_dev *wdev,
2653                                        struct ieee80211_channel *chan,
2654                                        unsigned int duration,
2655                                        u64 *cookie)
2656 {
2657         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2658         struct ieee80211_local *local = sdata->local;
2659         int ret;
2660
2661         mutex_lock(&local->mtx);
2662         ret = ieee80211_start_roc_work(local, sdata, chan,
2663                                        duration, cookie, NULL,
2664                                        IEEE80211_ROC_TYPE_NORMAL);
2665         mutex_unlock(&local->mtx);
2666
2667         return ret;
2668 }
2669
2670 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2671                                 u64 cookie, bool mgmt_tx)
2672 {
2673         struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2674         int ret;
2675
2676         mutex_lock(&local->mtx);
2677         list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2678                 struct ieee80211_roc_work *dep, *tmp2;
2679
2680                 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2681                         if (!mgmt_tx && dep->cookie != cookie)
2682                                 continue;
2683                         else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2684                                 continue;
2685                         /* found dependent item -- just remove it */
2686                         list_del(&dep->list);
2687                         mutex_unlock(&local->mtx);
2688
2689                         ieee80211_roc_notify_destroy(dep, true);
2690                         return 0;
2691                 }
2692
2693                 if (!mgmt_tx && roc->cookie != cookie)
2694                         continue;
2695                 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2696                         continue;
2697
2698                 found = roc;
2699                 break;
2700         }
2701
2702         if (!found) {
2703                 mutex_unlock(&local->mtx);
2704                 return -ENOENT;
2705         }
2706
2707         /*
2708          * We found the item to cancel, so do that. Note that it
2709          * may have dependents, which we also cancel (and send
2710          * the expired signal for.) Not doing so would be quite
2711          * tricky here, but we may need to fix it later.
2712          */
2713
2714         if (local->ops->remain_on_channel) {
2715                 if (found->started) {
2716                         ret = drv_cancel_remain_on_channel(local);
2717                         if (WARN_ON_ONCE(ret)) {
2718                                 mutex_unlock(&local->mtx);
2719                                 return ret;
2720                         }
2721                 }
2722
2723                 list_del(&found->list);
2724
2725                 if (found->started)
2726                         ieee80211_start_next_roc(local);
2727                 mutex_unlock(&local->mtx);
2728
2729                 ieee80211_roc_notify_destroy(found, true);
2730         } else {
2731                 /* work may be pending so use it all the time */
2732                 found->abort = true;
2733                 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2734
2735                 mutex_unlock(&local->mtx);
2736
2737                 /* work will clean up etc */
2738                 flush_delayed_work(&found->work);
2739                 WARN_ON(!found->to_be_freed);
2740                 kfree(found);
2741         }
2742
2743         return 0;
2744 }
2745
2746 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2747                                               struct wireless_dev *wdev,
2748                                               u64 cookie)
2749 {
2750         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2751         struct ieee80211_local *local = sdata->local;
2752
2753         return ieee80211_cancel_roc(local, cookie, false);
2754 }
2755
2756 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2757                                            struct net_device *dev,
2758                                            struct cfg80211_chan_def *chandef)
2759 {
2760         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2761         struct ieee80211_local *local = sdata->local;
2762         unsigned long timeout;
2763         int err;
2764
2765         if (!list_empty(&local->roc_list) || local->scanning)
2766                 return -EBUSY;
2767
2768         /* whatever, but channel contexts should not complain about that one */
2769         sdata->smps_mode = IEEE80211_SMPS_OFF;
2770         sdata->needed_rx_chains = local->rx_chains;
2771         sdata->radar_required = true;
2772
2773         mutex_lock(&local->iflist_mtx);
2774         err = ieee80211_vif_use_channel(sdata, chandef,
2775                                         IEEE80211_CHANCTX_SHARED);
2776         mutex_unlock(&local->iflist_mtx);
2777         if (err)
2778                 return err;
2779
2780         timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2781         ieee80211_queue_delayed_work(&sdata->local->hw,
2782                                      &sdata->dfs_cac_timer_work, timeout);
2783
2784         return 0;
2785 }
2786
2787 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
2788                              struct ieee80211_channel *chan, bool offchan,
2789                              unsigned int wait, const u8 *buf, size_t len,
2790                              bool no_cck, bool dont_wait_for_ack, u64 *cookie)
2791 {
2792         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2793         struct ieee80211_local *local = sdata->local;
2794         struct sk_buff *skb;
2795         struct sta_info *sta;
2796         const struct ieee80211_mgmt *mgmt = (void *)buf;
2797         bool need_offchan = false;
2798         u32 flags;
2799         int ret;
2800
2801         if (dont_wait_for_ack)
2802                 flags = IEEE80211_TX_CTL_NO_ACK;
2803         else
2804                 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
2805                         IEEE80211_TX_CTL_REQ_TX_STATUS;
2806
2807         if (no_cck)
2808                 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
2809
2810         switch (sdata->vif.type) {
2811         case NL80211_IFTYPE_ADHOC:
2812                 if (!sdata->vif.bss_conf.ibss_joined)
2813                         need_offchan = true;
2814                 /* fall through */
2815 #ifdef CONFIG_MAC80211_MESH
2816         case NL80211_IFTYPE_MESH_POINT:
2817                 if (ieee80211_vif_is_mesh(&sdata->vif) &&
2818                     !sdata->u.mesh.mesh_id_len)
2819                         need_offchan = true;
2820                 /* fall through */
2821 #endif
2822         case NL80211_IFTYPE_AP:
2823         case NL80211_IFTYPE_AP_VLAN:
2824         case NL80211_IFTYPE_P2P_GO:
2825                 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
2826                     !ieee80211_vif_is_mesh(&sdata->vif) &&
2827                     !rcu_access_pointer(sdata->bss->beacon))
2828                         need_offchan = true;
2829                 if (!ieee80211_is_action(mgmt->frame_control) ||
2830                     mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
2831                         break;
2832                 rcu_read_lock();
2833                 sta = sta_info_get(sdata, mgmt->da);
2834                 rcu_read_unlock();
2835                 if (!sta)
2836                         return -ENOLINK;
2837                 break;
2838         case NL80211_IFTYPE_STATION:
2839         case NL80211_IFTYPE_P2P_CLIENT:
2840                 if (!sdata->u.mgd.associated)
2841                         need_offchan = true;
2842                 break;
2843         case NL80211_IFTYPE_P2P_DEVICE:
2844                 need_offchan = true;
2845                 break;
2846         default:
2847                 return -EOPNOTSUPP;
2848         }
2849
2850         /* configurations requiring offchan cannot work if no channel has been
2851          * specified
2852          */
2853         if (need_offchan && !chan)
2854                 return -EINVAL;
2855
2856         mutex_lock(&local->mtx);
2857
2858         /* Check if the operating channel is the requested channel */
2859         if (!need_offchan) {
2860                 struct ieee80211_chanctx_conf *chanctx_conf;
2861
2862                 rcu_read_lock();
2863                 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2864
2865                 if (chanctx_conf) {
2866                         need_offchan = chan && (chan != chanctx_conf->def.chan);
2867                 } else if (!chan) {
2868                         ret = -EINVAL;
2869                         rcu_read_unlock();
2870                         goto out_unlock;
2871                 } else {
2872                         need_offchan = true;
2873                 }
2874                 rcu_read_unlock();
2875         }
2876
2877         if (need_offchan && !offchan) {
2878                 ret = -EBUSY;
2879                 goto out_unlock;
2880         }
2881
2882         skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
2883         if (!skb) {
2884                 ret = -ENOMEM;
2885                 goto out_unlock;
2886         }
2887         skb_reserve(skb, local->hw.extra_tx_headroom);
2888
2889         memcpy(skb_put(skb, len), buf, len);
2890
2891         IEEE80211_SKB_CB(skb)->flags = flags;
2892
2893         skb->dev = sdata->dev;
2894
2895         if (!need_offchan) {
2896                 *cookie = (unsigned long) skb;
2897                 ieee80211_tx_skb(sdata, skb);
2898                 ret = 0;
2899                 goto out_unlock;
2900         }
2901
2902         IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
2903                                         IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2904         if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
2905                 IEEE80211_SKB_CB(skb)->hw_queue =
2906                         local->hw.offchannel_tx_hw_queue;
2907
2908         /* This will handle all kinds of coalescing and immediate TX */
2909         ret = ieee80211_start_roc_work(local, sdata, chan,
2910                                        wait, cookie, skb,
2911                                        IEEE80211_ROC_TYPE_MGMT_TX);
2912         if (ret)
2913                 kfree_skb(skb);
2914  out_unlock:
2915         mutex_unlock(&local->mtx);
2916         return ret;
2917 }
2918
2919 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2920                                          struct wireless_dev *wdev,
2921                                          u64 cookie)
2922 {
2923         struct ieee80211_local *local = wiphy_priv(wiphy);
2924
2925         return ieee80211_cancel_roc(local, cookie, true);
2926 }
2927
2928 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2929                                           struct wireless_dev *wdev,
2930                                           u16 frame_type, bool reg)
2931 {
2932         struct ieee80211_local *local = wiphy_priv(wiphy);
2933         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2934
2935         switch (frame_type) {
2936         case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH:
2937                 if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
2938                         struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
2939
2940                         if (reg)
2941                                 ifibss->auth_frame_registrations++;
2942                         else
2943                                 ifibss->auth_frame_registrations--;
2944                 }
2945                 break;
2946         case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
2947                 if (reg)
2948                         local->probe_req_reg++;
2949                 else
2950                         local->probe_req_reg--;
2951
2952                 if (!local->open_count)
2953                         break;
2954
2955                 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2956                 break;
2957         default:
2958                 break;
2959         }
2960 }
2961
2962 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2963 {
2964         struct ieee80211_local *local = wiphy_priv(wiphy);
2965
2966         if (local->started)
2967                 return -EOPNOTSUPP;
2968
2969         return drv_set_antenna(local, tx_ant, rx_ant);
2970 }
2971
2972 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2973 {
2974         struct ieee80211_local *local = wiphy_priv(wiphy);
2975
2976         return drv_get_antenna(local, tx_ant, rx_ant);
2977 }
2978
2979 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2980 {
2981         struct ieee80211_local *local = wiphy_priv(wiphy);
2982
2983         return drv_set_ringparam(local, tx, rx);
2984 }
2985
2986 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2987                                     u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2988 {
2989         struct ieee80211_local *local = wiphy_priv(wiphy);
2990
2991         drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2992 }
2993
2994 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2995                                     struct net_device *dev,
2996                                     struct cfg80211_gtk_rekey_data *data)
2997 {
2998         struct ieee80211_local *local = wiphy_priv(wiphy);
2999         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3000
3001         if (!local->ops->set_rekey_data)
3002                 return -EOPNOTSUPP;
3003
3004         drv_set_rekey_data(local, sdata, data);
3005
3006         return 0;
3007 }
3008
3009 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3010 {
3011         u8 *pos = (void *)skb_put(skb, 7);
3012
3013         *pos++ = WLAN_EID_EXT_CAPABILITY;
3014         *pos++ = 5; /* len */
3015         *pos++ = 0x0;
3016         *pos++ = 0x0;
3017         *pos++ = 0x0;
3018         *pos++ = 0x0;
3019         *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3020 }
3021
3022 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3023 {
3024         struct ieee80211_local *local = sdata->local;
3025         u16 capab;
3026
3027         capab = 0;
3028         if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
3029                 return capab;
3030
3031         if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3032                 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3033         if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3034                 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3035
3036         return capab;
3037 }
3038
3039 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3040                                        u8 *peer, u8 *bssid)
3041 {
3042         struct ieee80211_tdls_lnkie *lnkid;
3043
3044         lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3045
3046         lnkid->ie_type = WLAN_EID_LINK_ID;
3047         lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3048
3049         memcpy(lnkid->bssid, bssid, ETH_ALEN);
3050         memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3051         memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3052 }
3053
3054 static int
3055 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3056                                u8 *peer, u8 action_code, u8 dialog_token,
3057                                u16 status_code, struct sk_buff *skb)
3058 {
3059         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3060         enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3061         struct ieee80211_tdls_data *tf;
3062
3063         tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3064
3065         memcpy(tf->da, peer, ETH_ALEN);
3066         memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3067         tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3068         tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3069
3070         switch (action_code) {
3071         case WLAN_TDLS_SETUP_REQUEST:
3072                 tf->category = WLAN_CATEGORY_TDLS;
3073                 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3074
3075                 skb_put(skb, sizeof(tf->u.setup_req));
3076                 tf->u.setup_req.dialog_token = dialog_token;
3077                 tf->u.setup_req.capability =
3078                         cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3079
3080                 ieee80211_add_srates_ie(sdata, skb, false, band);
3081                 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3082                 ieee80211_tdls_add_ext_capab(skb);
3083                 break;
3084         case WLAN_TDLS_SETUP_RESPONSE:
3085                 tf->category = WLAN_CATEGORY_TDLS;
3086                 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3087
3088                 skb_put(skb, sizeof(tf->u.setup_resp));
3089                 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3090                 tf->u.setup_resp.dialog_token = dialog_token;
3091                 tf->u.setup_resp.capability =
3092                         cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3093
3094                 ieee80211_add_srates_ie(sdata, skb, false, band);
3095                 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3096                 ieee80211_tdls_add_ext_capab(skb);
3097                 break;
3098         case WLAN_TDLS_SETUP_CONFIRM:
3099                 tf->category = WLAN_CATEGORY_TDLS;
3100                 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3101
3102                 skb_put(skb, sizeof(tf->u.setup_cfm));
3103                 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3104                 tf->u.setup_cfm.dialog_token = dialog_token;
3105                 break;
3106         case WLAN_TDLS_TEARDOWN:
3107                 tf->category = WLAN_CATEGORY_TDLS;
3108                 tf->action_code = WLAN_TDLS_TEARDOWN;
3109
3110                 skb_put(skb, sizeof(tf->u.teardown));
3111                 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3112                 break;
3113         case WLAN_TDLS_DISCOVERY_REQUEST:
3114                 tf->category = WLAN_CATEGORY_TDLS;
3115                 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3116
3117                 skb_put(skb, sizeof(tf->u.discover_req));
3118                 tf->u.discover_req.dialog_token = dialog_token;
3119                 break;
3120         default:
3121                 return -EINVAL;
3122         }
3123
3124         return 0;
3125 }
3126
3127 static int
3128 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3129                            u8 *peer, u8 action_code, u8 dialog_token,
3130                            u16 status_code, struct sk_buff *skb)
3131 {
3132         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3133         enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3134         struct ieee80211_mgmt *mgmt;
3135
3136         mgmt = (void *)skb_put(skb, 24);
3137         memset(mgmt, 0, 24);
3138         memcpy(mgmt->da, peer, ETH_ALEN);
3139         memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3140         memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3141
3142         mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3143                                           IEEE80211_STYPE_ACTION);
3144
3145         switch (action_code) {
3146         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3147                 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3148                 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3149                 mgmt->u.action.u.tdls_discover_resp.action_code =
3150                         WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3151                 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3152                         dialog_token;
3153                 mgmt->u.action.u.tdls_discover_resp.capability =
3154                         cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3155
3156                 ieee80211_add_srates_ie(sdata, skb, false, band);
3157                 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3158                 ieee80211_tdls_add_ext_capab(skb);
3159                 break;
3160         default:
3161                 return -EINVAL;
3162         }
3163
3164         return 0;
3165 }
3166
3167 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3168                                u8 *peer, u8 action_code, u8 dialog_token,
3169                                u16 status_code, const u8 *extra_ies,
3170                                size_t extra_ies_len)
3171 {
3172         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3173         struct ieee80211_local *local = sdata->local;
3174         struct sk_buff *skb = NULL;
3175         bool send_direct;
3176         int ret;
3177
3178         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3179                 return -ENOTSUPP;
3180
3181         /* make sure we are in managed mode, and associated */
3182         if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3183             !sdata->u.mgd.associated)
3184                 return -EINVAL;
3185
3186         tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3187                  action_code, peer);
3188
3189         skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3190                             max(sizeof(struct ieee80211_mgmt),
3191                                 sizeof(struct ieee80211_tdls_data)) +
3192                             50 + /* supported rates */
3193                             7 + /* ext capab */
3194                             extra_ies_len +
3195                             sizeof(struct ieee80211_tdls_lnkie));
3196         if (!skb)
3197                 return -ENOMEM;
3198
3199         skb_reserve(skb, local->hw.extra_tx_headroom);
3200
3201         switch (action_code) {
3202         case WLAN_TDLS_SETUP_REQUEST:
3203         case WLAN_TDLS_SETUP_RESPONSE:
3204         case WLAN_TDLS_SETUP_CONFIRM:
3205         case WLAN_TDLS_TEARDOWN:
3206         case WLAN_TDLS_DISCOVERY_REQUEST:
3207                 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3208                                                      action_code, dialog_token,
3209                                                      status_code, skb);
3210                 send_direct = false;
3211                 break;
3212         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3213                 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3214                                                  dialog_token, status_code,
3215                                                  skb);
3216                 send_direct = true;
3217                 break;
3218         default:
3219                 ret = -ENOTSUPP;
3220                 break;
3221         }
3222
3223         if (ret < 0)
3224                 goto fail;
3225
3226         if (extra_ies_len)
3227                 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3228
3229         /* the TDLS link IE is always added last */
3230         switch (action_code) {
3231         case WLAN_TDLS_SETUP_REQUEST:
3232         case WLAN_TDLS_SETUP_CONFIRM:
3233         case WLAN_TDLS_TEARDOWN:
3234         case WLAN_TDLS_DISCOVERY_REQUEST:
3235                 /* we are the initiator */
3236                 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3237                                            sdata->u.mgd.bssid);
3238                 break;
3239         case WLAN_TDLS_SETUP_RESPONSE:
3240         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3241                 /* we are the responder */
3242                 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3243                                            sdata->u.mgd.bssid);
3244                 break;
3245         default:
3246                 ret = -ENOTSUPP;
3247                 goto fail;
3248         }
3249
3250         if (send_direct) {
3251                 ieee80211_tx_skb(sdata, skb);
3252                 return 0;
3253         }
3254
3255         /*
3256          * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3257          * we should default to AC_VI.
3258          */
3259         switch (action_code) {
3260         case WLAN_TDLS_SETUP_REQUEST:
3261         case WLAN_TDLS_SETUP_RESPONSE:
3262                 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3263                 skb->priority = 2;
3264                 break;
3265         default:
3266                 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3267                 skb->priority = 5;
3268                 break;
3269         }
3270
3271         /* disable bottom halves when entering the Tx path */
3272         local_bh_disable();
3273         ret = ieee80211_subif_start_xmit(skb, dev);
3274         local_bh_enable();
3275
3276         return ret;
3277
3278 fail:
3279         dev_kfree_skb(skb);
3280         return ret;
3281 }
3282
3283 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3284                                u8 *peer, enum nl80211_tdls_operation oper)
3285 {
3286         struct sta_info *sta;
3287         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3288
3289         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3290                 return -ENOTSUPP;
3291
3292         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3293                 return -EINVAL;
3294
3295         tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3296
3297         switch (oper) {
3298         case NL80211_TDLS_ENABLE_LINK:
3299                 rcu_read_lock();
3300                 sta = sta_info_get(sdata, peer);
3301                 if (!sta) {
3302                         rcu_read_unlock();
3303                         return -ENOLINK;
3304                 }
3305
3306                 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3307                 rcu_read_unlock();
3308                 break;
3309         case NL80211_TDLS_DISABLE_LINK:
3310                 return sta_info_destroy_addr(sdata, peer);
3311         case NL80211_TDLS_TEARDOWN:
3312         case NL80211_TDLS_SETUP:
3313         case NL80211_TDLS_DISCOVERY_REQ:
3314                 /* We don't support in-driver setup/teardown/discovery */
3315                 return -ENOTSUPP;
3316         default:
3317                 return -ENOTSUPP;
3318         }
3319
3320         return 0;
3321 }
3322
3323 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3324                                   const u8 *peer, u64 *cookie)
3325 {
3326         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3327         struct ieee80211_local *local = sdata->local;
3328         struct ieee80211_qos_hdr *nullfunc;
3329         struct sk_buff *skb;
3330         int size = sizeof(*nullfunc);
3331         __le16 fc;
3332         bool qos;
3333         struct ieee80211_tx_info *info;
3334         struct sta_info *sta;
3335         struct ieee80211_chanctx_conf *chanctx_conf;
3336         enum ieee80211_band band;
3337
3338         rcu_read_lock();
3339         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3340         if (WARN_ON(!chanctx_conf)) {
3341                 rcu_read_unlock();
3342                 return -EINVAL;
3343         }
3344         band = chanctx_conf->def.chan->band;
3345         sta = sta_info_get(sdata, peer);
3346         if (sta) {
3347                 qos = test_sta_flag(sta, WLAN_STA_WME);
3348         } else {
3349                 rcu_read_unlock();
3350                 return -ENOLINK;
3351         }
3352
3353         if (qos) {
3354                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3355                                  IEEE80211_STYPE_QOS_NULLFUNC |
3356                                  IEEE80211_FCTL_FROMDS);
3357         } else {
3358                 size -= 2;
3359                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3360                                  IEEE80211_STYPE_NULLFUNC |
3361                                  IEEE80211_FCTL_FROMDS);
3362         }
3363
3364         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3365         if (!skb) {
3366                 rcu_read_unlock();
3367                 return -ENOMEM;
3368         }
3369
3370         skb->dev = dev;
3371
3372         skb_reserve(skb, local->hw.extra_tx_headroom);
3373
3374         nullfunc = (void *) skb_put(skb, size);
3375         nullfunc->frame_control = fc;
3376         nullfunc->duration_id = 0;
3377         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3378         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3379         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3380         nullfunc->seq_ctrl = 0;
3381
3382         info = IEEE80211_SKB_CB(skb);
3383
3384         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3385                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3386
3387         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3388         skb->priority = 7;
3389         if (qos)
3390                 nullfunc->qos_ctrl = cpu_to_le16(7);
3391
3392         local_bh_disable();
3393         ieee80211_xmit(sdata, skb, band);
3394         local_bh_enable();
3395         rcu_read_unlock();
3396
3397         *cookie = (unsigned long) skb;
3398         return 0;
3399 }
3400
3401 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3402                                      struct wireless_dev *wdev,
3403                                      struct cfg80211_chan_def *chandef)
3404 {
3405         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3406         struct ieee80211_local *local = wiphy_priv(wiphy);
3407         struct ieee80211_chanctx_conf *chanctx_conf;
3408         int ret = -ENODATA;
3409
3410         rcu_read_lock();
3411         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3412         if (chanctx_conf) {
3413                 *chandef = chanctx_conf->def;
3414                 ret = 0;
3415         } else if (local->open_count > 0 &&
3416                    local->open_count == local->monitors &&
3417                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3418                 if (local->use_chanctx)
3419                         *chandef = local->monitor_chandef;
3420                 else
3421                         *chandef = local->_oper_chandef;
3422                 ret = 0;
3423         }
3424         rcu_read_unlock();
3425
3426         return ret;
3427 }
3428
3429 #ifdef CONFIG_PM
3430 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3431 {
3432         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3433 }
3434 #endif
3435
3436 struct cfg80211_ops mac80211_config_ops = {
3437         .add_virtual_intf = ieee80211_add_iface,
3438         .del_virtual_intf = ieee80211_del_iface,
3439         .change_virtual_intf = ieee80211_change_iface,
3440         .start_p2p_device = ieee80211_start_p2p_device,
3441         .stop_p2p_device = ieee80211_stop_p2p_device,
3442         .add_key = ieee80211_add_key,
3443         .del_key = ieee80211_del_key,
3444         .get_key = ieee80211_get_key,
3445         .set_default_key = ieee80211_config_default_key,
3446         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3447         .start_ap = ieee80211_start_ap,
3448         .change_beacon = ieee80211_change_beacon,
3449         .stop_ap = ieee80211_stop_ap,
3450         .add_station = ieee80211_add_station,
3451         .del_station = ieee80211_del_station,
3452         .change_station = ieee80211_change_station,
3453         .get_station = ieee80211_get_station,
3454         .dump_station = ieee80211_dump_station,
3455         .dump_survey = ieee80211_dump_survey,
3456 #ifdef CONFIG_MAC80211_MESH
3457         .add_mpath = ieee80211_add_mpath,
3458         .del_mpath = ieee80211_del_mpath,
3459         .change_mpath = ieee80211_change_mpath,
3460         .get_mpath = ieee80211_get_mpath,
3461         .dump_mpath = ieee80211_dump_mpath,
3462         .update_mesh_config = ieee80211_update_mesh_config,
3463         .get_mesh_config = ieee80211_get_mesh_config,
3464         .join_mesh = ieee80211_join_mesh,
3465         .leave_mesh = ieee80211_leave_mesh,
3466 #endif
3467         .change_bss = ieee80211_change_bss,
3468         .set_txq_params = ieee80211_set_txq_params,
3469         .set_monitor_channel = ieee80211_set_monitor_channel,
3470         .suspend = ieee80211_suspend,
3471         .resume = ieee80211_resume,
3472         .scan = ieee80211_scan,
3473         .sched_scan_start = ieee80211_sched_scan_start,
3474         .sched_scan_stop = ieee80211_sched_scan_stop,
3475         .auth = ieee80211_auth,
3476         .assoc = ieee80211_assoc,
3477         .deauth = ieee80211_deauth,
3478         .disassoc = ieee80211_disassoc,
3479         .join_ibss = ieee80211_join_ibss,
3480         .leave_ibss = ieee80211_leave_ibss,
3481         .set_mcast_rate = ieee80211_set_mcast_rate,
3482         .set_wiphy_params = ieee80211_set_wiphy_params,
3483         .set_tx_power = ieee80211_set_tx_power,
3484         .get_tx_power = ieee80211_get_tx_power,
3485         .set_wds_peer = ieee80211_set_wds_peer,
3486         .rfkill_poll = ieee80211_rfkill_poll,
3487         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3488         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3489         .set_power_mgmt = ieee80211_set_power_mgmt,
3490         .set_bitrate_mask = ieee80211_set_bitrate_mask,
3491         .remain_on_channel = ieee80211_remain_on_channel,
3492         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3493         .mgmt_tx = ieee80211_mgmt_tx,
3494         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3495         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3496         .mgmt_frame_register = ieee80211_mgmt_frame_register,
3497         .set_antenna = ieee80211_set_antenna,
3498         .get_antenna = ieee80211_get_antenna,
3499         .set_ringparam = ieee80211_set_ringparam,
3500         .get_ringparam = ieee80211_get_ringparam,
3501         .set_rekey_data = ieee80211_set_rekey_data,
3502         .tdls_oper = ieee80211_tdls_oper,
3503         .tdls_mgmt = ieee80211_tdls_mgmt,
3504         .probe_client = ieee80211_probe_client,
3505         .set_noack_map = ieee80211_set_noack_map,
3506 #ifdef CONFIG_PM
3507         .set_wakeup = ieee80211_set_wakeup,
3508 #endif
3509         .get_et_sset_count = ieee80211_get_et_sset_count,
3510         .get_et_stats = ieee80211_get_et_stats,
3511         .get_et_strings = ieee80211_get_et_strings,
3512         .get_channel = ieee80211_cfg_get_channel,
3513         .start_radar_detection = ieee80211_start_radar_detection,
3514 };