net/mac80211/cfg.c

   1 /*
   2  * mac80211 configuration hooks for cfg80211
   3  *
   4  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   5  *
   6  * This file is GPLv2 as found in COPYING.
   7  */
   8
   9 #include <linux/ieee80211.h>
  10 #include <linux/nl80211.h>
  11 #include <linux/rtnetlink.h>
  12 #include <linux/slab.h>
  13 #include <net/net_namespace.h>
  14 #include <linux/rcupdate.h>
  15 #include <linux/if_ether.h>
  16 #include <net/cfg80211.h>
  17 #include "ieee80211_i.h"
  18 #include "driver-ops.h"
  19 #include "cfg.h"
  20 #include "rate.h"
  21 #include "mesh.h"
  22
  23 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
  24                                                 const char *name,
  25                                                 enum nl80211_iftype type,
  26                                                 u32 *flags,
  27                                                 struct vif_params *params)
  28 {
  29         struct ieee80211_local *local = wiphy_priv(wiphy);
  30         struct wireless_dev *wdev;
  31         struct ieee80211_sub_if_data *sdata;
  32         int err;
  33
  34         err = ieee80211_if_add(local, name, &wdev, type, params);
  35         if (err)
  36                 return ERR_PTR(err);
  37
  38         if (type == NL80211_IFTYPE_MONITOR && flags) {
  39                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
  40                 sdata->u.mntr_flags = *flags;
  41         }
  42
  43         return wdev;
  44 }
  45
  46 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
  47 {
  48         ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
  49
  50         return 0;
  51 }
  52
  53 static int ieee80211_change_iface(struct wiphy *wiphy,
  54                                   struct net_device *dev,
  55                                   enum nl80211_iftype type, u32 *flags,
  56                                   struct vif_params *params)
  57 {
  58         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  59         int ret;
  60
  61         ret = ieee80211_if_change_type(sdata, type);
  62         if (ret)
  63                 return ret;
  64
  65         if (type == NL80211_IFTYPE_AP_VLAN &&
  66             params && params->use_4addr == 0)
  67                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
  68         else if (type == NL80211_IFTYPE_STATION &&
  69                  params && params->use_4addr >= 0)
  70                 sdata->u.mgd.use_4addr = params->use_4addr;
  71
  72         if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
  73                 struct ieee80211_local *local = sdata->local;
  74
  75                 if (ieee80211_sdata_running(sdata)) {
  76                         u32 mask = MONITOR_FLAG_COOK_FRAMES |
  77                                    MONITOR_FLAG_ACTIVE;
  78
  79                         /*
  80                          * Prohibit MONITOR_FLAG_COOK_FRAMES and
  81                          * MONITOR_FLAG_ACTIVE to be changed while the
  82                          * interface is up.
  83                          * Else we would need to add a lot of cruft
  84                          * to update everything:
  85                          *      cooked_mntrs, monitor and all fif_* counters
  86                          *      reconfigure hardware
  87                          */
  88                         if ((*flags & mask) != (sdata->u.mntr_flags & mask))
  89                                 return -EBUSY;
  90
  91                         ieee80211_adjust_monitor_flags(sdata, -1);
  92                         sdata->u.mntr_flags = *flags;
  93                         ieee80211_adjust_monitor_flags(sdata, 1);
  94
  95                         ieee80211_configure_filter(local);
  96                 } else {
  97                         /*
  98                          * Because the interface is down, ieee80211_do_stop
  99                          * and ieee80211_do_open take care of "everything"
 100                          * mentioned in the comment above.
 101                          */
 102                         sdata->u.mntr_flags = *flags;
 103                 }
 104         }
 105
 106         return 0;
 107 }
 108
 109 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 110                                       struct wireless_dev *wdev)
 111 {
 112         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 113         int ret;
 114
 115         mutex_lock(&sdata->local->chanctx_mtx);
 116         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 117         mutex_unlock(&sdata->local->chanctx_mtx);
 118         if (ret < 0)
 119                 return ret;
 120
 121         return ieee80211_do_open(wdev, true);
 122 }
 123
 124 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 125                                       struct wireless_dev *wdev)
 126 {
 127         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 128 }
 129
 130 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 131                                   struct net_device *dev,
 132                                   u16 noack_map)
 133 {
 134         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 135
 136         sdata->noack_map = noack_map;
 137         return 0;
 138 }
 139
 140 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 141                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 142                              struct key_params *params)
 143 {
 144         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 145         struct ieee80211_local *local = sdata->local;
 146         struct sta_info *sta = NULL;
 147         const struct ieee80211_cipher_scheme *cs = NULL;
 148         struct ieee80211_key *key;
 149         int err;
 150
 151         if (!ieee80211_sdata_running(sdata))
 152                 return -ENETDOWN;
 153
 154         /* reject WEP and TKIP keys if WEP failed to initialize */
 155         switch (params->cipher) {
 156         case WLAN_CIPHER_SUITE_WEP40:
 157         case WLAN_CIPHER_SUITE_TKIP:
 158         case WLAN_CIPHER_SUITE_WEP104:
 159                 if (IS_ERR(local->wep_tx_tfm))
 160                         return -EINVAL;
 161                 break;
 162         case WLAN_CIPHER_SUITE_CCMP:
 163         case WLAN_CIPHER_SUITE_AES_CMAC:
 164         case WLAN_CIPHER_SUITE_GCMP:
 165                 break;
 166         default:
 167                 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
 168                 break;
 169         }
 170
 171         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 172                                   params->key, params->seq_len, params->seq,
 173                                   cs);
 174         if (IS_ERR(key))
 175                 return PTR_ERR(key);
 176
 177         if (pairwise)
 178                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 179
 180         mutex_lock(&local->sta_mtx);
 181
 182         if (mac_addr) {
 183                 if (ieee80211_vif_is_mesh(&sdata->vif))
 184                         sta = sta_info_get(sdata, mac_addr);
 185                 else
 186                         sta = sta_info_get_bss(sdata, mac_addr);
 187                 /*
 188                  * The ASSOC test makes sure the driver is ready to
 189                  * receive the key. When wpa_supplicant has roamed
 190                  * using FT, it attempts to set the key before
 191                  * association has completed, this rejects that attempt
 192                  * so it will set the key again after assocation.
 193                  *
 194                  * TODO: accept the key if we have a station entry and
 195                  *       add it to the device after the station.
 196                  */
 197                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 198                         ieee80211_key_free_unused(key);
 199                         err = -ENOENT;
 200                         goto out_unlock;
 201                 }
 202         }
 203
 204         switch (sdata->vif.type) {
 205         case NL80211_IFTYPE_STATION:
 206                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 207                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 208                 break;
 209         case NL80211_IFTYPE_AP:
 210         case NL80211_IFTYPE_AP_VLAN:
 211                 /* Keys without a station are used for TX only */
 212                 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
 213                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 214                 break;
 215         case NL80211_IFTYPE_ADHOC:
 216                 /* no MFP (yet) */
 217                 break;
 218         case NL80211_IFTYPE_MESH_POINT:
 219 #ifdef CONFIG_MAC80211_MESH
 220                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 221                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 222                 break;
 223 #endif
 224         case NL80211_IFTYPE_WDS:
 225         case NL80211_IFTYPE_MONITOR:
 226         case NL80211_IFTYPE_P2P_DEVICE:
 227         case NL80211_IFTYPE_UNSPECIFIED:
 228         case NUM_NL80211_IFTYPES:
 229         case NL80211_IFTYPE_P2P_CLIENT:
 230         case NL80211_IFTYPE_P2P_GO:
 231                 /* shouldn't happen */
 232                 WARN_ON_ONCE(1);
 233                 break;
 234         }
 235
 236         if (sta)
 237                 sta->cipher_scheme = cs;
 238
 239         err = ieee80211_key_link(key, sdata, sta);
 240
 241  out_unlock:
 242         mutex_unlock(&local->sta_mtx);
 243
 244         return err;
 245 }
 246
 247 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 248                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 249 {
 250         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 251         struct ieee80211_local *local = sdata->local;
 252         struct sta_info *sta;
 253         struct ieee80211_key *key = NULL;
 254         int ret;
 255
 256         mutex_lock(&local->sta_mtx);
 257         mutex_lock(&local->key_mtx);
 258
 259         if (mac_addr) {
 260                 ret = -ENOENT;
 261
 262                 sta = sta_info_get_bss(sdata, mac_addr);
 263                 if (!sta)
 264                         goto out_unlock;
 265
 266                 if (pairwise)
 267                         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 268                 else
 269                         key = key_mtx_dereference(local, sta->gtk[key_idx]);
 270         } else
 271                 key = key_mtx_dereference(local, sdata->keys[key_idx]);
 272
 273         if (!key) {
 274                 ret = -ENOENT;
 275                 goto out_unlock;
 276         }
 277
 278         ieee80211_key_free(key, true);
 279
 280         ret = 0;
 281  out_unlock:
 282         mutex_unlock(&local->key_mtx);
 283         mutex_unlock(&local->sta_mtx);
 284
 285         return ret;
 286 }
 287
 288 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 289                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 290                              void *cookie,
 291                              void (*callback)(void *cookie,
 292                                               struct key_params *params))
 293 {
 294         struct ieee80211_sub_if_data *sdata;
 295         struct sta_info *sta = NULL;
 296         u8 seq[6] = {0};
 297         struct key_params params;
 298         struct ieee80211_key *key = NULL;
 299         u64 pn64;
 300         u32 iv32;
 301         u16 iv16;
 302         int err = -ENOENT;
 303
 304         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 305
 306         rcu_read_lock();
 307
 308         if (mac_addr) {
 309                 sta = sta_info_get_bss(sdata, mac_addr);
 310                 if (!sta)
 311                         goto out;
 312
 313                 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 314                         key = rcu_dereference(sta->ptk[key_idx]);
 315                 else if (!pairwise &&
 316                          key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
 317                         key = rcu_dereference(sta->gtk[key_idx]);
 318         } else
 319                 key = rcu_dereference(sdata->keys[key_idx]);
 320
 321         if (!key)
 322                 goto out;
 323
 324         memset(&params, 0, sizeof(params));
 325
 326         params.cipher = key->conf.cipher;
 327
 328         switch (key->conf.cipher) {
 329         case WLAN_CIPHER_SUITE_TKIP:
 330                 iv32 = key->u.tkip.tx.iv32;
 331                 iv16 = key->u.tkip.tx.iv16;
 332
 333                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 334                         drv_get_tkip_seq(sdata->local,
 335                                          key->conf.hw_key_idx,
 336                                          &iv32, &iv16);
 337
 338                 seq[0] = iv16 & 0xff;
 339                 seq[1] = (iv16 >> 8) & 0xff;
 340                 seq[2] = iv32 & 0xff;
 341                 seq[3] = (iv32 >> 8) & 0xff;
 342                 seq[4] = (iv32 >> 16) & 0xff;
 343                 seq[5] = (iv32 >> 24) & 0xff;
 344                 params.seq = seq;
 345                 params.seq_len = 6;
 346                 break;
 347         case WLAN_CIPHER_SUITE_CCMP:
 348                 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
 349                 seq[0] = pn64;
 350                 seq[1] = pn64 >> 8;
 351                 seq[2] = pn64 >> 16;
 352                 seq[3] = pn64 >> 24;
 353                 seq[4] = pn64 >> 32;
 354                 seq[5] = pn64 >> 40;
 355                 params.seq = seq;
 356                 params.seq_len = 6;
 357                 break;
 358         case WLAN_CIPHER_SUITE_AES_CMAC:
 359                 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
 360                 seq[0] = pn64;
 361                 seq[1] = pn64 >> 8;
 362                 seq[2] = pn64 >> 16;
 363                 seq[3] = pn64 >> 24;
 364                 seq[4] = pn64 >> 32;
 365                 seq[5] = pn64 >> 40;
 366                 params.seq = seq;
 367                 params.seq_len = 6;
 368                 break;
 369         }
 370
 371         params.key = key->conf.key;
 372         params.key_len = key->conf.keylen;
 373
 374         callback(cookie, &params);
 375         err = 0;
 376
 377  out:
 378         rcu_read_unlock();
 379         return err;
 380 }
 381
 382 static int ieee80211_config_default_key(struct wiphy *wiphy,
 383                                         struct net_device *dev,
 384                                         u8 key_idx, bool uni,
 385                                         bool multi)
 386 {
 387         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 388
 389         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 390
 391         return 0;
 392 }
 393
 394 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 395                                              struct net_device *dev,
 396                                              u8 key_idx)
 397 {
 398         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 399
 400         ieee80211_set_default_mgmt_key(sdata, key_idx);
 401
 402         return 0;
 403 }
 404
 405 void sta_set_rate_info_tx(struct sta_info *sta,
 406                           const struct ieee80211_tx_rate *rate,
 407                           struct rate_info *rinfo)
 408 {
 409         rinfo->flags = 0;
 410         if (rate->flags & IEEE80211_TX_RC_MCS) {
 411                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 412                 rinfo->mcs = rate->idx;
 413         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 414                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 415                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 416                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 417         } else {
 418                 struct ieee80211_supported_band *sband;
 419                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 420                 u16 brate;
 421
 422                 sband = sta->local->hw.wiphy->bands[
 423                                 ieee80211_get_sdata_band(sta->sdata)];
 424                 brate = sband->bitrates[rate->idx].bitrate;
 425                 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 426         }
 427         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 428                 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 429         if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 430                 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 431         if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 432                 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 433         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 434                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 435 }
 436
 437 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
 438 {
 439         rinfo->flags = 0;
 440
 441         if (sta->last_rx_rate_flag & RX_FLAG_HT) {
 442                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 443                 rinfo->mcs = sta->last_rx_rate_idx;
 444         } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
 445                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 446                 rinfo->nss = sta->last_rx_rate_vht_nss;
 447                 rinfo->mcs = sta->last_rx_rate_idx;
 448         } else {
 449                 struct ieee80211_supported_band *sband;
 450                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 451                 u16 brate;
 452
 453                 sband = sta->local->hw.wiphy->bands[
 454                                 ieee80211_get_sdata_band(sta->sdata)];
 455                 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
 456                 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 457         }
 458
 459         if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
 460                 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 461         if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
 462                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 463         if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
 464                 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 465         if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80P80MHZ)
 466                 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
 467         if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
 468                 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 469 }
 470
 471 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 472 {
 473         struct ieee80211_sub_if_data *sdata = sta->sdata;
 474         struct ieee80211_local *local = sdata->local;
 475         struct timespec uptime;
 476         u64 packets = 0;
 477         int i, ac;
 478
 479         sinfo->generation = sdata->local->sta_generation;
 480
 481         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 482                         STATION_INFO_RX_BYTES64 |
 483                         STATION_INFO_TX_BYTES64 |
 484                         STATION_INFO_RX_PACKETS |
 485                         STATION_INFO_TX_PACKETS |
 486                         STATION_INFO_TX_RETRIES |
 487                         STATION_INFO_TX_FAILED |
 488                         STATION_INFO_TX_BITRATE |
 489                         STATION_INFO_RX_BITRATE |
 490                         STATION_INFO_RX_DROP_MISC |
 491                         STATION_INFO_BSS_PARAM |
 492                         STATION_INFO_CONNECTED_TIME |
 493                         STATION_INFO_STA_FLAGS |
 494                         STATION_INFO_BEACON_LOSS_COUNT;
 495
 496         do_posix_clock_monotonic_gettime(&uptime);
 497         sinfo->connected_time = uptime.tv_sec - sta->last_connected;
 498
 499         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 500         sinfo->tx_bytes = 0;
 501         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 502                 sinfo->tx_bytes += sta->tx_bytes[ac];
 503                 packets += sta->tx_packets[ac];
 504         }
 505         sinfo->tx_packets = packets;
 506         sinfo->rx_bytes = sta->rx_bytes;
 507         sinfo->rx_packets = sta->rx_packets;
 508         sinfo->tx_retries = sta->tx_retry_count;
 509         sinfo->tx_failed = sta->tx_retry_failed;
 510         sinfo->rx_dropped_misc = sta->rx_dropped;
 511         sinfo->beacon_loss_count = sta->beacon_loss_count;
 512
 513         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 514             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 515                 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 516                 if (!local->ops->get_rssi ||
 517                     drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
 518                         sinfo->signal = (s8)sta->last_signal;
 519                 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
 520         }
 521         if (sta->chains) {
 522                 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
 523                                  STATION_INFO_CHAIN_SIGNAL_AVG;
 524
 525                 sinfo->chains = sta->chains;
 526                 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
 527                         sinfo->chain_signal[i] = sta->chain_signal_last[i];
 528                         sinfo->chain_signal_avg[i] =
 529                                 (s8) -ewma_read(&sta->chain_signal_avg[i]);
 530                 }
 531         }
 532
 533         sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
 534         sta_set_rate_info_rx(sta, &sinfo->rxrate);
 535
 536         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 537 #ifdef CONFIG_MAC80211_MESH
 538                 sinfo->filled |= STATION_INFO_LLID |
 539                                  STATION_INFO_PLID |
 540                                  STATION_INFO_PLINK_STATE |
 541                                  STATION_INFO_LOCAL_PM |
 542                                  STATION_INFO_PEER_PM |
 543                                  STATION_INFO_NONPEER_PM;
 544
 545                 sinfo->llid = sta->llid;
 546                 sinfo->plid = sta->plid;
 547                 sinfo->plink_state = sta->plink_state;
 548                 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
 549                         sinfo->filled |= STATION_INFO_T_OFFSET;
 550                         sinfo->t_offset = sta->t_offset;
 551                 }
 552                 sinfo->local_pm = sta->local_pm;
 553                 sinfo->peer_pm = sta->peer_pm;
 554                 sinfo->nonpeer_pm = sta->nonpeer_pm;
 555 #endif
 556         }
 557
 558         sinfo->bss_param.flags = 0;
 559         if (sdata->vif.bss_conf.use_cts_prot)
 560                 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
 561         if (sdata->vif.bss_conf.use_short_preamble)
 562                 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 563         if (sdata->vif.bss_conf.use_short_slot)
 564                 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 565         sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
 566         sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
 567
 568         sinfo->sta_flags.set = 0;
 569         sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
 570                                 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
 571                                 BIT(NL80211_STA_FLAG_WME) |
 572                                 BIT(NL80211_STA_FLAG_MFP) |
 573                                 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
 574                                 BIT(NL80211_STA_FLAG_ASSOCIATED) |
 575                                 BIT(NL80211_STA_FLAG_TDLS_PEER);
 576         if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
 577                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
 578         if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
 579                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
 580         if (test_sta_flag(sta, WLAN_STA_WME))
 581                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
 582         if (test_sta_flag(sta, WLAN_STA_MFP))
 583                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
 584         if (test_sta_flag(sta, WLAN_STA_AUTH))
 585                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
 586         if (test_sta_flag(sta, WLAN_STA_ASSOC))
 587                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
 588         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
 589                 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
 590 }
 591
 592 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
 593         "rx_packets", "rx_bytes", "wep_weak_iv_count",
 594         "rx_duplicates", "rx_fragments", "rx_dropped",
 595         "tx_packets", "tx_bytes", "tx_fragments",
 596         "tx_filtered", "tx_retry_failed", "tx_retries",
 597         "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
 598         "channel", "noise", "ch_time", "ch_time_busy",
 599         "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
 600 };
 601 #define STA_STATS_LEN   ARRAY_SIZE(ieee80211_gstrings_sta_stats)
 602
 603 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
 604                                        struct net_device *dev,
 605                                        int sset)
 606 {
 607         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 608         int rv = 0;
 609
 610         if (sset == ETH_SS_STATS)
 611                 rv += STA_STATS_LEN;
 612
 613         rv += drv_get_et_sset_count(sdata, sset);
 614
 615         if (rv == 0)
 616                 return -EOPNOTSUPP;
 617         return rv;
 618 }
 619
 620 static void ieee80211_get_et_stats(struct wiphy *wiphy,
 621                                    struct net_device *dev,
 622                                    struct ethtool_stats *stats,
 623                                    u64 *data)
 624 {
 625         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 626         struct ieee80211_chanctx_conf *chanctx_conf;
 627         struct ieee80211_channel *channel;
 628         struct sta_info *sta;
 629         struct ieee80211_local *local = sdata->local;
 630         struct station_info sinfo;
 631         struct survey_info survey;
 632         int i, q;
 633 #define STA_STATS_SURVEY_LEN 7
 634
 635         memset(data, 0, sizeof(u64) * STA_STATS_LEN);
 636
 637 #define ADD_STA_STATS(sta)                              \
 638         do {                                            \
 639                 data[i++] += sta->rx_packets;           \
 640                 data[i++] += sta->rx_bytes;             \
 641                 data[i++] += sta->wep_weak_iv_count;    \
 642                 data[i++] += sta->num_duplicates;       \
 643                 data[i++] += sta->rx_fragments;         \
 644                 data[i++] += sta->rx_dropped;           \
 645                                                         \
 646                 data[i++] += sinfo.tx_packets;          \
 647                 data[i++] += sinfo.tx_bytes;            \
 648                 data[i++] += sta->tx_fragments;         \
 649                 data[i++] += sta->tx_filtered_count;    \
 650                 data[i++] += sta->tx_retry_failed;      \
 651                 data[i++] += sta->tx_retry_count;       \
 652                 data[i++] += sta->beacon_loss_count;    \
 653         } while (0)
 654
 655         /* For Managed stations, find the single station based on BSSID
 656          * and use that.  For interface types, iterate through all available
 657          * stations and add stats for any station that is assigned to this
 658          * network device.
 659          */
 660
 661         mutex_lock(&local->sta_mtx);
 662
 663         if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 664                 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
 665
 666                 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
 667                         goto do_survey;
 668
 669                 sinfo.filled = 0;
 670                 sta_set_sinfo(sta, &sinfo);
 671
 672                 i = 0;
 673                 ADD_STA_STATS(sta);
 674
 675                 data[i++] = sta->sta_state;
 676
 677
 678                 if (sinfo.filled & STATION_INFO_TX_BITRATE)
 679                         data[i] = 100000 *
 680                                 cfg80211_calculate_bitrate(&sinfo.txrate);
 681                 i++;
 682                 if (sinfo.filled & STATION_INFO_RX_BITRATE)
 683                         data[i] = 100000 *
 684                                 cfg80211_calculate_bitrate(&sinfo.rxrate);
 685                 i++;
 686
 687                 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
 688                         data[i] = (u8)sinfo.signal_avg;
 689                 i++;
 690         } else {
 691                 list_for_each_entry(sta, &local->sta_list, list) {
 692                         /* Make sure this station belongs to the proper dev */
 693                         if (sta->sdata->dev != dev)
 694                                 continue;
 695
 696                         sinfo.filled = 0;
 697                         sta_set_sinfo(sta, &sinfo);
 698                         i = 0;
 699                         ADD_STA_STATS(sta);
 700                 }
 701         }
 702
 703 do_survey:
 704         i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
 705         /* Get survey stats for current channel */
 706         survey.filled = 0;
 707
 708         rcu_read_lock();
 709         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
 710         if (chanctx_conf)
 711                 channel = chanctx_conf->def.chan;
 712         else
 713                 channel = NULL;
 714         rcu_read_unlock();
 715
 716         if (channel) {
 717                 q = 0;
 718                 do {
 719                         survey.filled = 0;
 720                         if (drv_get_survey(local, q, &survey) != 0) {
 721                                 survey.filled = 0;
 722                                 break;
 723                         }
 724                         q++;
 725                 } while (channel != survey.channel);
 726         }
 727
 728         if (survey.filled)
 729                 data[i++] = survey.channel->center_freq;
 730         else
 731                 data[i++] = 0;
 732         if (survey.filled & SURVEY_INFO_NOISE_DBM)
 733                 data[i++] = (u8)survey.noise;
 734         else
 735                 data[i++] = -1LL;
 736         if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
 737                 data[i++] = survey.channel_time;
 738         else
 739                 data[i++] = -1LL;
 740         if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
 741                 data[i++] = survey.channel_time_busy;
 742         else
 743                 data[i++] = -1LL;
 744         if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
 745                 data[i++] = survey.channel_time_ext_busy;
 746         else
 747                 data[i++] = -1LL;
 748         if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
 749                 data[i++] = survey.channel_time_rx;
 750         else
 751                 data[i++] = -1LL;
 752         if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
 753                 data[i++] = survey.channel_time_tx;
 754         else
 755                 data[i++] = -1LL;
 756
 757         mutex_unlock(&local->sta_mtx);
 758
 759         if (WARN_ON(i != STA_STATS_LEN))
 760                 return;
 761
 762         drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
 763 }
 764
 765 static void ieee80211_get_et_strings(struct wiphy *wiphy,
 766                                      struct net_device *dev,
 767                                      u32 sset, u8 *data)
 768 {
 769         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 770         int sz_sta_stats = 0;
 771
 772         if (sset == ETH_SS_STATS) {
 773                 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
 774                 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
 775         }
 776         drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
 777 }
 778
 779 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 780                                  int idx, u8 *mac, struct station_info *sinfo)
 781 {
 782         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 783         struct ieee80211_local *local = sdata->local;
 784         struct sta_info *sta;
 785         int ret = -ENOENT;
 786
 787         mutex_lock(&local->sta_mtx);
 788
 789         sta = sta_info_get_by_idx(sdata, idx);
 790         if (sta) {
 791                 ret = 0;
 792                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 793                 sta_set_sinfo(sta, sinfo);
 794         }
 795
 796         mutex_unlock(&local->sta_mtx);
 797
 798         return ret;
 799 }
 800
 801 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 802                                  int idx, struct survey_info *survey)
 803 {
 804         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 805
 806         return drv_get_survey(local, idx, survey);
 807 }
 808
 809 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 810                                  u8 *mac, struct station_info *sinfo)
 811 {
 812         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 813         struct ieee80211_local *local = sdata->local;
 814         struct sta_info *sta;
 815         int ret = -ENOENT;
 816
 817         mutex_lock(&local->sta_mtx);
 818
 819         sta = sta_info_get_bss(sdata, mac);
 820         if (sta) {
 821                 ret = 0;
 822                 sta_set_sinfo(sta, sinfo);
 823         }
 824
 825         mutex_unlock(&local->sta_mtx);
 826
 827         return ret;
 828 }
 829
 830 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 831                                          struct cfg80211_chan_def *chandef)
 832 {
 833         struct ieee80211_local *local = wiphy_priv(wiphy);
 834         struct ieee80211_sub_if_data *sdata;
 835         int ret = 0;
 836
 837         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 838                 return 0;
 839
 840         mutex_lock(&local->mtx);
 841         mutex_lock(&local->iflist_mtx);
 842         if (local->use_chanctx) {
 843                 sdata = rcu_dereference_protected(
 844                                 local->monitor_sdata,
 845                                 lockdep_is_held(&local->iflist_mtx));
 846                 if (sdata) {
 847                         ieee80211_vif_release_channel(sdata);
 848                         ret = ieee80211_vif_use_channel(sdata, chandef,
 849                                         IEEE80211_CHANCTX_EXCLUSIVE);
 850                 }
 851         } else if (local->open_count == local->monitors) {
 852                 local->_oper_chandef = *chandef;
 853                 ieee80211_hw_config(local, 0);
 854         }
 855
 856         if (ret == 0)
 857                 local->monitor_chandef = *chandef;
 858         mutex_unlock(&local->iflist_mtx);
 859         mutex_unlock(&local->mtx);
 860
 861         return ret;
 862 }
 863
 864 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 865                                     const u8 *resp, size_t resp_len)
 866 {
 867         struct probe_resp *new, *old;
 868
 869         if (!resp || !resp_len)
 870                 return 1;
 871
 872         old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 873
 874         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 875         if (!new)
 876                 return -ENOMEM;
 877
 878         new->len = resp_len;
 879         memcpy(new->data, resp, resp_len);
 880
 881         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 882         if (old)
 883                 kfree_rcu(old, rcu_head);
 884
 885         return 0;
 886 }
 887
 888 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 889                                    struct cfg80211_beacon_data *params)
 890 {
 891         struct beacon_data *new, *old;
 892         int new_head_len, new_tail_len;
 893         int size, err;
 894         u32 changed = BSS_CHANGED_BEACON;
 895
 896         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 897
 898
 899         /* Need to have a beacon head if we don't have one yet */
 900         if (!params->head && !old)
 901                 return -EINVAL;
 902
 903         /* new or old head? */
 904         if (params->head)
 905                 new_head_len = params->head_len;
 906         else
 907                 new_head_len = old->head_len;
 908
 909         /* new or old tail? */
 910         if (params->tail || !old)
 911                 /* params->tail_len will be zero for !params->tail */
 912                 new_tail_len = params->tail_len;
 913         else
 914                 new_tail_len = old->tail_len;
 915
 916         size = sizeof(*new) + new_head_len + new_tail_len;
 917
 918         new = kzalloc(size, GFP_KERNEL);
 919         if (!new)
 920                 return -ENOMEM;
 921
 922         /* start filling the new info now */
 923
 924         /*
 925          * pointers go into the block we allocated,
 926          * memory is | beacon_data | head | tail |
 927          */
 928         new->head = ((u8 *) new) + sizeof(*new);
 929         new->tail = new->head + new_head_len;
 930         new->head_len = new_head_len;
 931         new->tail_len = new_tail_len;
 932
 933         /* copy in head */
 934         if (params->head)
 935                 memcpy(new->head, params->head, new_head_len);
 936         else
 937                 memcpy(new->head, old->head, new_head_len);
 938
 939         /* copy in optional tail */
 940         if (params->tail)
 941                 memcpy(new->tail, params->tail, new_tail_len);
 942         else
 943                 if (old)
 944                         memcpy(new->tail, old->tail, new_tail_len);
 945
 946         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
 947                                        params->probe_resp_len);
 948         if (err < 0)
 949                 return err;
 950         if (err == 0)
 951                 changed |= BSS_CHANGED_AP_PROBE_RESP;
 952
 953         rcu_assign_pointer(sdata->u.ap.beacon, new);
 954
 955         if (old)
 956                 kfree_rcu(old, rcu_head);
 957
 958         return changed;
 959 }
 960
 961 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 962                               struct cfg80211_ap_settings *params)
 963 {
 964         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 965         struct ieee80211_local *local = sdata->local;
 966         struct beacon_data *old;
 967         struct ieee80211_sub_if_data *vlan;
 968         u32 changed = BSS_CHANGED_BEACON_INT |
 969                       BSS_CHANGED_BEACON_ENABLED |
 970                       BSS_CHANGED_BEACON |
 971                       BSS_CHANGED_SSID |
 972                       BSS_CHANGED_P2P_PS;
 973         int err;
 974
 975         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 976         if (old)
 977                 return -EALREADY;
 978
 979         /* TODO: make hostapd tell us what it wants */
 980         sdata->smps_mode = IEEE80211_SMPS_OFF;
 981         sdata->needed_rx_chains = sdata->local->rx_chains;
 982
 983         mutex_lock(&local->mtx);
 984         err = ieee80211_vif_use_channel(sdata, &params->chandef,
 985                                         IEEE80211_CHANCTX_SHARED);
 986         if (!err)
 987                 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
 988         mutex_unlock(&local->mtx);
 989         if (err)
 990                 return err;
 991
 992         /*
 993          * Apply control port protocol, this allows us to
 994          * not encrypt dynamic WEP control frames.
 995          */
 996         sdata->control_port_protocol = params->crypto.control_port_ethertype;
 997         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
 998         sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
 999                                                         &params->crypto,
1000                                                         sdata->vif.type);
1001
1002         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1003                 vlan->control_port_protocol =
1004                         params->crypto.control_port_ethertype;
1005                 vlan->control_port_no_encrypt =
1006                         params->crypto.control_port_no_encrypt;
1007                 vlan->encrypt_headroom =
1008                         ieee80211_cs_headroom(sdata->local,
1009                                               &params->crypto,
1010                                               vlan->vif.type);
1011         }
1012
1013         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1014         sdata->vif.bss_conf.dtim_period = params->dtim_period;
1015         sdata->vif.bss_conf.enable_beacon = true;
1016
1017         sdata->vif.bss_conf.ssid_len = params->ssid_len;
1018         if (params->ssid_len)
1019                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1020                        params->ssid_len);
1021         sdata->vif.bss_conf.hidden_ssid =
1022                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1023
1024         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1025                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1026         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1027                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1028         if (params->p2p_opp_ps)
1029                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1030                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1031
1032         err = ieee80211_assign_beacon(sdata, &params->beacon);
1033         if (err < 0) {
1034                 ieee80211_vif_release_channel(sdata);
1035                 return err;
1036         }
1037         changed |= err;
1038
1039         err = drv_start_ap(sdata->local, sdata);
1040         if (err) {
1041                 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1042
1043                 if (old)
1044                         kfree_rcu(old, rcu_head);
1045                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1046                 ieee80211_vif_release_channel(sdata);
1047                 return err;
1048         }
1049
1050         ieee80211_recalc_dtim(local, sdata);
1051         ieee80211_bss_info_change_notify(sdata, changed);
1052
1053         netif_carrier_on(dev);
1054         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1055                 netif_carrier_on(vlan->dev);
1056
1057         return 0;
1058 }
1059
1060 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1061                                    struct cfg80211_beacon_data *params)
1062 {
1063         struct ieee80211_sub_if_data *sdata;
1064         struct beacon_data *old;
1065         int err;
1066
1067         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1068         sdata_assert_lock(sdata);
1069
1070         /* don't allow changing the beacon while CSA is in place - offset
1071          * of channel switch counter may change
1072          */
1073         if (sdata->vif.csa_active)
1074                 return -EBUSY;
1075
1076         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1077         if (!old)
1078                 return -ENOENT;
1079
1080         err = ieee80211_assign_beacon(sdata, params);
1081         if (err < 0)
1082                 return err;
1083         ieee80211_bss_info_change_notify(sdata, err);
1084         return 0;
1085 }
1086
1087 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1088 {
1089         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1090         struct ieee80211_sub_if_data *vlan;
1091         struct ieee80211_local *local = sdata->local;
1092         struct beacon_data *old_beacon;
1093         struct probe_resp *old_probe_resp;
1094         struct cfg80211_chan_def chandef;
1095
1096         sdata_assert_lock(sdata);
1097
1098         old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1099         if (!old_beacon)
1100                 return -ENOENT;
1101         old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1102
1103         /* abort any running channel switch */
1104         sdata->vif.csa_active = false;
1105         kfree(sdata->u.ap.next_beacon);
1106         sdata->u.ap.next_beacon = NULL;
1107
1108         /* turn off carrier for this interface and dependent VLANs */
1109         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1110                 netif_carrier_off(vlan->dev);
1111         netif_carrier_off(dev);
1112
1113         /* remove beacon and probe response */
1114         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1115         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1116         kfree_rcu(old_beacon, rcu_head);
1117         if (old_probe_resp)
1118                 kfree_rcu(old_probe_resp, rcu_head);
1119         sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1120
1121         __sta_info_flush(sdata, true);
1122         ieee80211_free_keys(sdata, true);
1123
1124         sdata->vif.bss_conf.enable_beacon = false;
1125         sdata->vif.bss_conf.ssid_len = 0;
1126         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1127         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1128
1129         if (sdata->wdev.cac_started) {
1130                 chandef = sdata->vif.bss_conf.chandef;
1131                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1132                 cfg80211_cac_event(sdata->dev, &chandef,
1133                                    NL80211_RADAR_CAC_ABORTED,
1134                                    GFP_KERNEL);
1135         }
1136
1137         drv_stop_ap(sdata->local, sdata);
1138
1139         /* free all potentially still buffered bcast frames */
1140         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1141         skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1142
1143         mutex_lock(&local->mtx);
1144         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1145         ieee80211_vif_release_channel(sdata);
1146         mutex_unlock(&local->mtx);
1147
1148         return 0;
1149 }
1150
1151 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1152 struct iapp_layer2_update {
1153         u8 da[ETH_ALEN];        /* broadcast */
1154         u8 sa[ETH_ALEN];        /* STA addr */
1155         __be16 len;             /* 6 */
1156         u8 dsap;                /* 0 */
1157         u8 ssap;                /* 0 */
1158         u8 control;
1159         u8 xid_info[3];
1160 } __packed;
1161
1162 static void ieee80211_send_layer2_update(struct sta_info *sta)
1163 {
1164         struct iapp_layer2_update *msg;
1165         struct sk_buff *skb;
1166
1167         /* Send Level 2 Update Frame to update forwarding tables in layer 2
1168          * bridge devices */
1169
1170         skb = dev_alloc_skb(sizeof(*msg));
1171         if (!skb)
1172                 return;
1173         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1174
1175         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1176          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1177
1178         eth_broadcast_addr(msg->da);
1179         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1180         msg->len = htons(6);
1181         msg->dsap = 0;
1182         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
1183         msg->control = 0xaf;    /* XID response lsb.1111F101.
1184                                  * F=0 (no poll command; unsolicited frame) */
1185         msg->xid_info[0] = 0x81;        /* XID format identifier */
1186         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
1187         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
1188
1189         skb->dev = sta->sdata->dev;
1190         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1191         memset(skb->cb, 0, sizeof(skb->cb));
1192         netif_rx_ni(skb);
1193 }
1194
1195 static int sta_apply_auth_flags(struct ieee80211_local *local,
1196                                 struct sta_info *sta,
1197                                 u32 mask, u32 set)
1198 {
1199         int ret;
1200
1201         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1202             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1203             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1204                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1205                 if (ret)
1206                         return ret;
1207         }
1208
1209         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1210             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1211             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1212                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1213                 if (ret)
1214                         return ret;
1215         }
1216
1217         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1218                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1219                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1220                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1221                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1222                 else
1223                         ret = 0;
1224                 if (ret)
1225                         return ret;
1226         }
1227
1228         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1229             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1230             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1231                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1232                 if (ret)
1233                         return ret;
1234         }
1235
1236         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1237             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1238             test_sta_flag(sta, WLAN_STA_AUTH)) {
1239                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1240                 if (ret)
1241                         return ret;
1242         }
1243
1244         return 0;
1245 }
1246
1247 static int sta_apply_parameters(struct ieee80211_local *local,
1248                                 struct sta_info *sta,
1249                                 struct station_parameters *params)
1250 {
1251         int ret = 0;
1252         struct ieee80211_supported_band *sband;
1253         struct ieee80211_sub_if_data *sdata = sta->sdata;
1254         enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1255         u32 mask, set;
1256
1257         sband = local->hw.wiphy->bands[band];
1258
1259         mask = params->sta_flags_mask;
1260         set = params->sta_flags_set;
1261
1262         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1263                 /*
1264                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1265                  * API but must follow AUTHENTICATED for driver state.
1266                  */
1267                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1268                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1269                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1270                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1271         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1272                 /*
1273                  * TDLS -- everything follows authorized, but
1274                  * only becoming authorized is possible, not
1275                  * going back
1276                  */
1277                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1278                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1279                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1280                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1281                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1282                 }
1283         }
1284
1285         ret = sta_apply_auth_flags(local, sta, mask, set);
1286         if (ret)
1287                 return ret;
1288
1289         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1290                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1291                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1292                 else
1293                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1294         }
1295
1296         if (mask & BIT(NL80211_STA_FLAG_WME)) {
1297                 if (set & BIT(NL80211_STA_FLAG_WME)) {
1298                         set_sta_flag(sta, WLAN_STA_WME);
1299                         sta->sta.wme = true;
1300                 } else {
1301                         clear_sta_flag(sta, WLAN_STA_WME);
1302                         sta->sta.wme = false;
1303                 }
1304         }
1305
1306         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1307                 if (set & BIT(NL80211_STA_FLAG_MFP))
1308                         set_sta_flag(sta, WLAN_STA_MFP);
1309                 else
1310                         clear_sta_flag(sta, WLAN_STA_MFP);
1311         }
1312
1313         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1314                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1315                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1316                 else
1317                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1318         }
1319
1320         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1321                 sta->sta.uapsd_queues = params->uapsd_queues;
1322                 sta->sta.max_sp = params->max_sp;
1323         }
1324
1325         /*
1326          * cfg80211 validates this (1-2007) and allows setting the AID
1327          * only when creating a new station entry
1328          */
1329         if (params->aid)
1330                 sta->sta.aid = params->aid;
1331
1332         /*
1333          * Some of the following updates would be racy if called on an
1334          * existing station, via ieee80211_change_station(). However,
1335          * all such changes are rejected by cfg80211 except for updates
1336          * changing the supported rates on an existing but not yet used
1337          * TDLS peer.
1338          */
1339
1340         if (params->listen_interval >= 0)
1341                 sta->listen_interval = params->listen_interval;
1342
1343         if (params->supported_rates) {
1344                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1345                                          sband, params->supported_rates,
1346                                          params->supported_rates_len,
1347                                          &sta->sta.supp_rates[band]);
1348         }
1349
1350         if (params->ht_capa)
1351                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1352                                                   params->ht_capa, sta);
1353
1354         if (params->vht_capa)
1355                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1356                                                     params->vht_capa, sta);
1357
1358         if (params->opmode_notif_used) {
1359                 /* returned value is only needed for rc update, but the
1360                  * rc isn't initialized here yet, so ignore it
1361                  */
1362                 __ieee80211_vht_handle_opmode(sdata, sta,
1363                                               params->opmode_notif,
1364                                               band, false);
1365         }
1366
1367         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1368 #ifdef CONFIG_MAC80211_MESH
1369                 u32 changed = 0;
1370
1371                 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1372                         switch (params->plink_state) {
1373                         case NL80211_PLINK_ESTAB:
1374                                 if (sta->plink_state != NL80211_PLINK_ESTAB)
1375                                         changed = mesh_plink_inc_estab_count(
1376                                                         sdata);
1377                                 sta->plink_state = params->plink_state;
1378
1379                                 ieee80211_mps_sta_status_update(sta);
1380                                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1381                                               sdata->u.mesh.mshcfg.power_mode);
1382                                 break;
1383                         case NL80211_PLINK_LISTEN:
1384                         case NL80211_PLINK_BLOCKED:
1385                         case NL80211_PLINK_OPN_SNT:
1386                         case NL80211_PLINK_OPN_RCVD:
1387                         case NL80211_PLINK_CNF_RCVD:
1388                         case NL80211_PLINK_HOLDING:
1389                                 if (sta->plink_state == NL80211_PLINK_ESTAB)
1390                                         changed = mesh_plink_dec_estab_count(
1391                                                         sdata);
1392                                 sta->plink_state = params->plink_state;
1393
1394                                 ieee80211_mps_sta_status_update(sta);
1395                                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1396                                                 NL80211_MESH_POWER_UNKNOWN);
1397                                 break;
1398                         default:
1399                                 /*  nothing  */
1400                                 break;
1401                         }
1402                 }
1403
1404                 switch (params->plink_action) {
1405                 case NL80211_PLINK_ACTION_NO_ACTION:
1406                         /* nothing */
1407                         break;
1408                 case NL80211_PLINK_ACTION_OPEN:
1409                         changed |= mesh_plink_open(sta);
1410                         break;
1411                 case NL80211_PLINK_ACTION_BLOCK:
1412                         changed |= mesh_plink_block(sta);
1413                         break;
1414                 }
1415
1416                 if (params->local_pm)
1417                         changed |=
1418                               ieee80211_mps_set_sta_local_pm(sta,
1419                                                              params->local_pm);
1420                 ieee80211_mbss_info_change_notify(sdata, changed);
1421 #endif
1422         }
1423
1424         return 0;
1425 }
1426
1427 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1428                                  u8 *mac, struct station_parameters *params)
1429 {
1430         struct ieee80211_local *local = wiphy_priv(wiphy);
1431         struct sta_info *sta;
1432         struct ieee80211_sub_if_data *sdata;
1433         int err;
1434         int layer2_update;
1435
1436         if (params->vlan) {
1437                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1438
1439                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1440                     sdata->vif.type != NL80211_IFTYPE_AP)
1441                         return -EINVAL;
1442         } else
1443                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1444
1445         if (ether_addr_equal(mac, sdata->vif.addr))
1446                 return -EINVAL;
1447
1448         if (is_multicast_ether_addr(mac))
1449                 return -EINVAL;
1450
1451         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1452         if (!sta)
1453                 return -ENOMEM;
1454
1455         /*
1456          * defaults -- if userspace wants something else we'll
1457          * change it accordingly in sta_apply_parameters()
1458          */
1459         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1460                 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1461                 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1462         }
1463
1464         err = sta_apply_parameters(local, sta, params);
1465         if (err) {
1466                 sta_info_free(local, sta);
1467                 return err;
1468         }
1469
1470         /*
1471          * for TDLS, rate control should be initialized only when
1472          * rates are known and station is marked authorized
1473          */
1474         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1475                 rate_control_rate_init(sta);
1476
1477         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1478                 sdata->vif.type == NL80211_IFTYPE_AP;
1479
1480         err = sta_info_insert_rcu(sta);
1481         if (err) {
1482                 rcu_read_unlock();
1483                 return err;
1484         }
1485
1486         if (layer2_update)
1487                 ieee80211_send_layer2_update(sta);
1488
1489         rcu_read_unlock();
1490
1491         return 0;
1492 }
1493
1494 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1495                                  u8 *mac)
1496 {
1497         struct ieee80211_sub_if_data *sdata;
1498
1499         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1500
1501         if (mac)
1502                 return sta_info_destroy_addr_bss(sdata, mac);
1503
1504         sta_info_flush(sdata);
1505         return 0;
1506 }
1507
1508 static int ieee80211_change_station(struct wiphy *wiphy,
1509                                     struct net_device *dev, u8 *mac,
1510                                     struct station_parameters *params)
1511 {
1512         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1513         struct ieee80211_local *local = wiphy_priv(wiphy);
1514         struct sta_info *sta;
1515         struct ieee80211_sub_if_data *vlansdata;
1516         enum cfg80211_station_type statype;
1517         int err;
1518
1519         mutex_lock(&local->sta_mtx);
1520
1521         sta = sta_info_get_bss(sdata, mac);
1522         if (!sta) {
1523                 err = -ENOENT;
1524                 goto out_err;
1525         }
1526
1527         switch (sdata->vif.type) {
1528         case NL80211_IFTYPE_MESH_POINT:
1529                 if (sdata->u.mesh.user_mpm)
1530                         statype = CFG80211_STA_MESH_PEER_USER;
1531                 else
1532                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1533                 break;
1534         case NL80211_IFTYPE_ADHOC:
1535                 statype = CFG80211_STA_IBSS;
1536                 break;
1537         case NL80211_IFTYPE_STATION:
1538                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1539                         statype = CFG80211_STA_AP_STA;
1540                         break;
1541                 }
1542                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1543                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1544                 else
1545                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1546                 break;
1547         case NL80211_IFTYPE_AP:
1548         case NL80211_IFTYPE_AP_VLAN:
1549                 statype = CFG80211_STA_AP_CLIENT;
1550                 break;
1551         default:
1552                 err = -EOPNOTSUPP;
1553                 goto out_err;
1554         }
1555
1556         err = cfg80211_check_station_change(wiphy, params, statype);
1557         if (err)
1558                 goto out_err;
1559
1560         if (params->vlan && params->vlan != sta->sdata->dev) {
1561                 bool prev_4addr = false;
1562                 bool new_4addr = false;
1563
1564                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1565
1566                 if (params->vlan->ieee80211_ptr->use_4addr) {
1567                         if (vlansdata->u.vlan.sta) {
1568                                 err = -EBUSY;
1569                                 goto out_err;
1570                         }
1571
1572                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1573                         new_4addr = true;
1574                 }
1575
1576                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1577                     sta->sdata->u.vlan.sta) {
1578                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1579                         prev_4addr = true;
1580                 }
1581
1582                 sta->sdata = vlansdata;
1583
1584                 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1585                     prev_4addr != new_4addr) {
1586                         if (new_4addr)
1587                                 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1588                         else
1589                                 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1590                 }
1591
1592                 ieee80211_send_layer2_update(sta);
1593         }
1594
1595         err = sta_apply_parameters(local, sta, params);
1596         if (err)
1597                 goto out_err;
1598
1599         /* When peer becomes authorized, init rate control as well */
1600         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1601             test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1602                 rate_control_rate_init(sta);
1603
1604         mutex_unlock(&local->sta_mtx);
1605
1606         if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1607              sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1608             sta->known_smps_mode != sta->sdata->bss->req_smps &&
1609             test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1610             sta_info_tx_streams(sta) != 1) {
1611                 ht_dbg(sta->sdata,
1612                        "%pM just authorized and MIMO capable - update SMPS\n",
1613                        sta->sta.addr);
1614                 ieee80211_send_smps_action(sta->sdata,
1615                         sta->sdata->bss->req_smps,
1616                         sta->sta.addr,
1617                         sta->sdata->vif.bss_conf.bssid);
1618         }
1619
1620         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1621             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1622                 ieee80211_recalc_ps(local, -1);
1623                 ieee80211_recalc_ps_vif(sdata);
1624         }
1625
1626         return 0;
1627 out_err:
1628         mutex_unlock(&local->sta_mtx);
1629         return err;
1630 }
1631
1632 #ifdef CONFIG_MAC80211_MESH
1633 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1634                                  u8 *dst, u8 *next_hop)
1635 {
1636         struct ieee80211_sub_if_data *sdata;
1637         struct mesh_path *mpath;
1638         struct sta_info *sta;
1639
1640         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1641
1642         rcu_read_lock();
1643         sta = sta_info_get(sdata, next_hop);
1644         if (!sta) {
1645                 rcu_read_unlock();
1646                 return -ENOENT;
1647         }
1648
1649         mpath = mesh_path_add(sdata, dst);
1650         if (IS_ERR(mpath)) {
1651                 rcu_read_unlock();
1652                 return PTR_ERR(mpath);
1653         }
1654
1655         mesh_path_fix_nexthop(mpath, sta);
1656
1657         rcu_read_unlock();
1658         return 0;
1659 }
1660
1661 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1662                                u8 *dst)
1663 {
1664         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1665
1666         if (dst)
1667                 return mesh_path_del(sdata, dst);
1668
1669         mesh_path_flush_by_iface(sdata);
1670         return 0;
1671 }
1672
1673 static int ieee80211_change_mpath(struct wiphy *wiphy,
1674                                     struct net_device *dev,
1675                                     u8 *dst, u8 *next_hop)
1676 {
1677         struct ieee80211_sub_if_data *sdata;
1678         struct mesh_path *mpath;
1679         struct sta_info *sta;
1680
1681         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1682
1683         rcu_read_lock();
1684
1685         sta = sta_info_get(sdata, next_hop);
1686         if (!sta) {
1687                 rcu_read_unlock();
1688                 return -ENOENT;
1689         }
1690
1691         mpath = mesh_path_lookup(sdata, dst);
1692         if (!mpath) {
1693                 rcu_read_unlock();
1694                 return -ENOENT;
1695         }
1696
1697         mesh_path_fix_nexthop(mpath, sta);
1698
1699         rcu_read_unlock();
1700         return 0;
1701 }
1702
1703 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1704                             struct mpath_info *pinfo)
1705 {
1706         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1707
1708         if (next_hop_sta)
1709                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1710         else
1711                 memset(next_hop, 0, ETH_ALEN);
1712
1713         memset(pinfo, 0, sizeof(*pinfo));
1714
1715         pinfo->generation = mesh_paths_generation;
1716
1717         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1718                         MPATH_INFO_SN |
1719                         MPATH_INFO_METRIC |
1720                         MPATH_INFO_EXPTIME |
1721                         MPATH_INFO_DISCOVERY_TIMEOUT |
1722                         MPATH_INFO_DISCOVERY_RETRIES |
1723                         MPATH_INFO_FLAGS;
1724
1725         pinfo->frame_qlen = mpath->frame_queue.qlen;
1726         pinfo->sn = mpath->sn;
1727         pinfo->metric = mpath->metric;
1728         if (time_before(jiffies, mpath->exp_time))
1729                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1730         pinfo->discovery_timeout =
1731                         jiffies_to_msecs(mpath->discovery_timeout);
1732         pinfo->discovery_retries = mpath->discovery_retries;
1733         if (mpath->flags & MESH_PATH_ACTIVE)
1734                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1735         if (mpath->flags & MESH_PATH_RESOLVING)
1736                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1737         if (mpath->flags & MESH_PATH_SN_VALID)
1738                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1739         if (mpath->flags & MESH_PATH_FIXED)
1740                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1741         if (mpath->flags & MESH_PATH_RESOLVED)
1742                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1743 }
1744
1745 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1746                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1747
1748 {
1749         struct ieee80211_sub_if_data *sdata;
1750         struct mesh_path *mpath;
1751
1752         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1753
1754         rcu_read_lock();
1755         mpath = mesh_path_lookup(sdata, dst);
1756         if (!mpath) {
1757                 rcu_read_unlock();
1758                 return -ENOENT;
1759         }
1760         memcpy(dst, mpath->dst, ETH_ALEN);
1761         mpath_set_pinfo(mpath, next_hop, pinfo);
1762         rcu_read_unlock();
1763         return 0;
1764 }
1765
1766 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1767                                  int idx, u8 *dst, u8 *next_hop,
1768                                  struct mpath_info *pinfo)
1769 {
1770         struct ieee80211_sub_if_data *sdata;
1771         struct mesh_path *mpath;
1772
1773         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1774
1775         rcu_read_lock();
1776         mpath = mesh_path_lookup_by_idx(sdata, idx);
1777         if (!mpath) {
1778                 rcu_read_unlock();
1779                 return -ENOENT;
1780         }
1781         memcpy(dst, mpath->dst, ETH_ALEN);
1782         mpath_set_pinfo(mpath, next_hop, pinfo);
1783         rcu_read_unlock();
1784         return 0;
1785 }
1786
1787 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1788                                 struct net_device *dev,
1789                                 struct mesh_config *conf)
1790 {
1791         struct ieee80211_sub_if_data *sdata;
1792         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1793
1794         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1795         return 0;
1796 }
1797
1798 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1799 {
1800         return (mask >> (parm-1)) & 0x1;
1801 }
1802
1803 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1804                 const struct mesh_setup *setup)
1805 {
1806         u8 *new_ie;
1807         const u8 *old_ie;
1808         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1809                                         struct ieee80211_sub_if_data, u.mesh);
1810
1811         /* allocate information elements */
1812         new_ie = NULL;
1813         old_ie = ifmsh->ie;
1814
1815         if (setup->ie_len) {
1816                 new_ie = kmemdup(setup->ie, setup->ie_len,
1817                                 GFP_KERNEL);
1818                 if (!new_ie)
1819                         return -ENOMEM;
1820         }
1821         ifmsh->ie_len = setup->ie_len;
1822         ifmsh->ie = new_ie;
1823         kfree(old_ie);
1824
1825         /* now copy the rest of the setup parameters */
1826         ifmsh->mesh_id_len = setup->mesh_id_len;
1827         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1828         ifmsh->mesh_sp_id = setup->sync_method;
1829         ifmsh->mesh_pp_id = setup->path_sel_proto;
1830         ifmsh->mesh_pm_id = setup->path_metric;
1831         ifmsh->user_mpm = setup->user_mpm;
1832         ifmsh->mesh_auth_id = setup->auth_id;
1833         ifmsh->security = IEEE80211_MESH_SEC_NONE;
1834         if (setup->is_authenticated)
1835                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1836         if (setup->is_secure)
1837                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1838
1839         /* mcast rate setting in Mesh Node */
1840         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1841                                                 sizeof(setup->mcast_rate));
1842         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1843
1844         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1845         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1846
1847         return 0;
1848 }
1849
1850 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1851                                         struct net_device *dev, u32 mask,
1852                                         const struct mesh_config *nconf)
1853 {
1854         struct mesh_config *conf;
1855         struct ieee80211_sub_if_data *sdata;
1856         struct ieee80211_if_mesh *ifmsh;
1857
1858         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1859         ifmsh = &sdata->u.mesh;
1860
1861         /* Set the config options which we are interested in setting */
1862         conf = &(sdata->u.mesh.mshcfg);
1863         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1864                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1865         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1866                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1867         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1868                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1869         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1870                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1871         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1872                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1873         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1874                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1875         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1876                 conf->element_ttl = nconf->element_ttl;
1877         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1878                 if (ifmsh->user_mpm)
1879                         return -EBUSY;
1880                 conf->auto_open_plinks = nconf->auto_open_plinks;
1881         }
1882         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1883                 conf->dot11MeshNbrOffsetMaxNeighbor =
1884                         nconf->dot11MeshNbrOffsetMaxNeighbor;
1885         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1886                 conf->dot11MeshHWMPmaxPREQretries =
1887                         nconf->dot11MeshHWMPmaxPREQretries;
1888         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1889                 conf->path_refresh_time = nconf->path_refresh_time;
1890         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1891                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1892         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1893                 conf->dot11MeshHWMPactivePathTimeout =
1894                         nconf->dot11MeshHWMPactivePathTimeout;
1895         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1896                 conf->dot11MeshHWMPpreqMinInterval =
1897                         nconf->dot11MeshHWMPpreqMinInterval;
1898         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1899                 conf->dot11MeshHWMPperrMinInterval =
1900                         nconf->dot11MeshHWMPperrMinInterval;
1901         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1902                            mask))
1903                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1904                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1905         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1906                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1907                 ieee80211_mesh_root_setup(ifmsh);
1908         }
1909         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1910                 /* our current gate announcement implementation rides on root
1911                  * announcements, so require this ifmsh to also be a root node
1912                  * */
1913                 if (nconf->dot11MeshGateAnnouncementProtocol &&
1914                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1915                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1916                         ieee80211_mesh_root_setup(ifmsh);
1917                 }
1918                 conf->dot11MeshGateAnnouncementProtocol =
1919                         nconf->dot11MeshGateAnnouncementProtocol;
1920         }
1921         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1922                 conf->dot11MeshHWMPRannInterval =
1923                         nconf->dot11MeshHWMPRannInterval;
1924         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1925                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1926         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1927                 /* our RSSI threshold implementation is supported only for
1928                  * devices that report signal in dBm.
1929                  */
1930                 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1931                         return -ENOTSUPP;
1932                 conf->rssi_threshold = nconf->rssi_threshold;
1933         }
1934         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1935                 conf->ht_opmode = nconf->ht_opmode;
1936                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1937                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1938         }
1939         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1940                 conf->dot11MeshHWMPactivePathToRootTimeout =
1941                         nconf->dot11MeshHWMPactivePathToRootTimeout;
1942         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1943                 conf->dot11MeshHWMProotInterval =
1944                         nconf->dot11MeshHWMProotInterval;
1945         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1946                 conf->dot11MeshHWMPconfirmationInterval =
1947                         nconf->dot11MeshHWMPconfirmationInterval;
1948         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1949                 conf->power_mode = nconf->power_mode;
1950                 ieee80211_mps_local_status_update(sdata);
1951         }
1952         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1953                 conf->dot11MeshAwakeWindowDuration =
1954                         nconf->dot11MeshAwakeWindowDuration;
1955         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1956                 conf->plink_timeout = nconf->plink_timeout;
1957         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1958         return 0;
1959 }
1960
1961 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1962                                const struct mesh_config *conf,
1963                                const struct mesh_setup *setup)
1964 {
1965         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1966         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1967         int err;
1968
1969         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1970         err = copy_mesh_setup(ifmsh, setup);
1971         if (err)
1972                 return err;
1973
1974         /* can mesh use other SMPS modes? */
1975         sdata->smps_mode = IEEE80211_SMPS_OFF;
1976         sdata->needed_rx_chains = sdata->local->rx_chains;
1977
1978         mutex_lock(&sdata->local->mtx);
1979         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1980                                         IEEE80211_CHANCTX_SHARED);
1981         mutex_unlock(&sdata->local->mtx);
1982         if (err)
1983                 return err;
1984
1985         return ieee80211_start_mesh(sdata);
1986 }
1987
1988 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1989 {
1990         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1991
1992         ieee80211_stop_mesh(sdata);
1993         mutex_lock(&sdata->local->mtx);
1994         ieee80211_vif_release_channel(sdata);
1995         mutex_unlock(&sdata->local->mtx);
1996
1997         return 0;
1998 }
1999 #endif
2000
2001 static int ieee80211_change_bss(struct wiphy *wiphy,
2002                                 struct net_device *dev,
2003                                 struct bss_parameters *params)
2004 {
2005         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2006         enum ieee80211_band band;
2007         u32 changed = 0;
2008
2009         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2010                 return -ENOENT;
2011
2012         band = ieee80211_get_sdata_band(sdata);
2013
2014         if (params->use_cts_prot >= 0) {
2015                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2016                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2017         }
2018         if (params->use_short_preamble >= 0) {
2019                 sdata->vif.bss_conf.use_short_preamble =
2020                         params->use_short_preamble;
2021                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2022         }
2023
2024         if (!sdata->vif.bss_conf.use_short_slot &&
2025             band == IEEE80211_BAND_5GHZ) {
2026                 sdata->vif.bss_conf.use_short_slot = true;
2027                 changed |= BSS_CHANGED_ERP_SLOT;
2028         }
2029
2030         if (params->use_short_slot_time >= 0) {
2031                 sdata->vif.bss_conf.use_short_slot =
2032                         params->use_short_slot_time;
2033                 changed |= BSS_CHANGED_ERP_SLOT;
2034         }
2035
2036         if (params->basic_rates) {
2037                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2038                                          wiphy->bands[band],
2039                                          params->basic_rates,
2040                                          params->basic_rates_len,
2041                                          &sdata->vif.bss_conf.basic_rates);
2042                 changed |= BSS_CHANGED_BASIC_RATES;
2043         }
2044
2045         if (params->ap_isolate >= 0) {
2046                 if (params->ap_isolate)
2047                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2048                 else
2049                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2050         }
2051
2052         if (params->ht_opmode >= 0) {
2053                 sdata->vif.bss_conf.ht_operation_mode =
2054                         (u16) params->ht_opmode;
2055                 changed |= BSS_CHANGED_HT;
2056         }
2057
2058         if (params->p2p_ctwindow >= 0) {
2059                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2060                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2061                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2062                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2063                 changed |= BSS_CHANGED_P2P_PS;
2064         }
2065
2066         if (params->p2p_opp_ps > 0) {
2067                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2068                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2069                 changed |= BSS_CHANGED_P2P_PS;
2070         } else if (params->p2p_opp_ps == 0) {
2071                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2072                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2073                 changed |= BSS_CHANGED_P2P_PS;
2074         }
2075
2076         ieee80211_bss_info_change_notify(sdata, changed);
2077
2078         return 0;
2079 }
2080
2081 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2082                                     struct net_device *dev,
2083                                     struct ieee80211_txq_params *params)
2084 {
2085         struct ieee80211_local *local = wiphy_priv(wiphy);
2086         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2087         struct ieee80211_tx_queue_params p;
2088
2089         if (!local->ops->conf_tx)
2090                 return -EOPNOTSUPP;
2091
2092         if (local->hw.queues < IEEE80211_NUM_ACS)
2093                 return -EOPNOTSUPP;
2094
2095         memset(&p, 0, sizeof(p));
2096         p.aifs = params->aifs;
2097         p.cw_max = params->cwmax;
2098         p.cw_min = params->cwmin;
2099         p.txop = params->txop;
2100
2101         /*
2102          * Setting tx queue params disables u-apsd because it's only
2103          * called in master mode.
2104          */
2105         p.uapsd = false;
2106
2107         sdata->tx_conf[params->ac] = p;
2108         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2109                 wiphy_debug(local->hw.wiphy,
2110                             "failed to set TX queue parameters for AC %d\n",
2111                             params->ac);
2112                 return -EINVAL;
2113         }
2114
2115         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2116
2117         return 0;
2118 }
2119
2120 #ifdef CONFIG_PM
2121 static int ieee80211_suspend(struct wiphy *wiphy,
2122                              struct cfg80211_wowlan *wowlan)
2123 {
2124         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2125 }
2126
2127 static int ieee80211_resume(struct wiphy *wiphy)
2128 {
2129         return __ieee80211_resume(wiphy_priv(wiphy));
2130 }
2131 #else
2132 #define ieee80211_suspend NULL
2133 #define ieee80211_resume NULL
2134 #endif
2135
2136 static int ieee80211_scan(struct wiphy *wiphy,
2137                           struct cfg80211_scan_request *req)
2138 {
2139         struct ieee80211_sub_if_data *sdata;
2140
2141         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2142
2143         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2144         case NL80211_IFTYPE_STATION:
2145         case NL80211_IFTYPE_ADHOC:
2146         case NL80211_IFTYPE_MESH_POINT:
2147         case NL80211_IFTYPE_P2P_CLIENT:
2148         case NL80211_IFTYPE_P2P_DEVICE:
2149                 break;
2150         case NL80211_IFTYPE_P2P_GO:
2151                 if (sdata->local->ops->hw_scan)
2152                         break;
2153                 /*
2154                  * FIXME: implement NoA while scanning in software,
2155                  * for now fall through to allow scanning only when
2156                  * beaconing hasn't been configured yet
2157                  */
2158         case NL80211_IFTYPE_AP:
2159                 /*
2160                  * If the scan has been forced (and the driver supports
2161                  * forcing), don't care about being beaconing already.
2162                  * This will create problems to the attached stations (e.g. all
2163                  * the  frames sent while scanning on other channel will be
2164                  * lost)
2165                  */
2166                 if (sdata->u.ap.beacon &&
2167                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2168                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2169                         return -EOPNOTSUPP;
2170                 break;
2171         default:
2172                 return -EOPNOTSUPP;
2173         }
2174
2175         return ieee80211_request_scan(sdata, req);
2176 }
2177
2178 static int
2179 ieee80211_sched_scan_start(struct wiphy *wiphy,
2180                            struct net_device *dev,
2181                            struct cfg80211_sched_scan_request *req)
2182 {
2183         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2184
2185         if (!sdata->local->ops->sched_scan_start)
2186                 return -EOPNOTSUPP;
2187
2188         return ieee80211_request_sched_scan_start(sdata, req);
2189 }
2190
2191 static int
2192 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2193 {
2194         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2195
2196         if (!sdata->local->ops->sched_scan_stop)
2197                 return -EOPNOTSUPP;
2198
2199         return ieee80211_request_sched_scan_stop(sdata);
2200 }
2201
2202 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2203                           struct cfg80211_auth_request *req)
2204 {
2205         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2206 }
2207
2208 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2209                            struct cfg80211_assoc_request *req)
2210 {
2211         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2212 }
2213
2214 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2215                             struct cfg80211_deauth_request *req)
2216 {
2217         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2218 }
2219
2220 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2221                               struct cfg80211_disassoc_request *req)
2222 {
2223         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2224 }
2225
2226 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2227                                struct cfg80211_ibss_params *params)
2228 {
2229         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2230 }
2231
2232 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2233 {
2234         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2235 }
2236
2237 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2238                                     int rate[IEEE80211_NUM_BANDS])
2239 {
2240         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2241
2242         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2243                sizeof(int) * IEEE80211_NUM_BANDS);
2244
2245         return 0;
2246 }
2247
2248 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2249 {
2250         struct ieee80211_local *local = wiphy_priv(wiphy);
2251         int err;
2252
2253         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2254                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2255
2256                 if (err)
2257                         return err;
2258         }
2259
2260         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2261                 err = drv_set_coverage_class(local, wiphy->coverage_class);
2262
2263                 if (err)
2264                         return err;
2265         }
2266
2267         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2268                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2269
2270                 if (err)
2271                         return err;
2272         }
2273
2274         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2275                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2276                         return -EINVAL;
2277                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2278         }
2279         if (changed & WIPHY_PARAM_RETRY_LONG) {
2280                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2281                         return -EINVAL;
2282                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2283         }
2284         if (changed &
2285             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2286                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2287
2288         return 0;
2289 }
2290
2291 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2292                                   struct wireless_dev *wdev,
2293                                   enum nl80211_tx_power_setting type, int mbm)
2294 {
2295         struct ieee80211_local *local = wiphy_priv(wiphy);
2296         struct ieee80211_sub_if_data *sdata;
2297
2298         if (wdev) {
2299                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2300
2301                 switch (type) {
2302                 case NL80211_TX_POWER_AUTOMATIC:
2303                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2304                         break;
2305                 case NL80211_TX_POWER_LIMITED:
2306                 case NL80211_TX_POWER_FIXED:
2307                         if (mbm < 0 || (mbm % 100))
2308                                 return -EOPNOTSUPP;
2309                         sdata->user_power_level = MBM_TO_DBM(mbm);
2310                         break;
2311                 }
2312
2313                 ieee80211_recalc_txpower(sdata);
2314
2315                 return 0;
2316         }
2317
2318         switch (type) {
2319         case NL80211_TX_POWER_AUTOMATIC:
2320                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2321                 break;
2322         case NL80211_TX_POWER_LIMITED:
2323         case NL80211_TX_POWER_FIXED:
2324                 if (mbm < 0 || (mbm % 100))
2325                         return -EOPNOTSUPP;
2326                 local->user_power_level = MBM_TO_DBM(mbm);
2327                 break;
2328         }
2329
2330         mutex_lock(&local->iflist_mtx);
2331         list_for_each_entry(sdata, &local->interfaces, list)
2332                 sdata->user_power_level = local->user_power_level;
2333         list_for_each_entry(sdata, &local->interfaces, list)
2334                 ieee80211_recalc_txpower(sdata);
2335         mutex_unlock(&local->iflist_mtx);
2336
2337         return 0;
2338 }
2339
2340 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2341                                   struct wireless_dev *wdev,
2342                                   int *dbm)
2343 {
2344         struct ieee80211_local *local = wiphy_priv(wiphy);
2345         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2346
2347         if (!local->use_chanctx)
2348                 *dbm = local->hw.conf.power_level;
2349         else
2350                 *dbm = sdata->vif.bss_conf.txpower;
2351
2352         return 0;
2353 }
2354
2355 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2356                                   const u8 *addr)
2357 {
2358         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2359
2360         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2361
2362         return 0;
2363 }
2364
2365 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2366 {
2367         struct ieee80211_local *local = wiphy_priv(wiphy);
2368
2369         drv_rfkill_poll(local);
2370 }
2371
2372 #ifdef CONFIG_NL80211_TESTMODE
2373 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2374                                   struct wireless_dev *wdev,
2375                                   void *data, int len)
2376 {
2377         struct ieee80211_local *local = wiphy_priv(wiphy);
2378         struct ieee80211_vif *vif = NULL;
2379
2380         if (!local->ops->testmode_cmd)
2381                 return -EOPNOTSUPP;
2382
2383         if (wdev) {
2384                 struct ieee80211_sub_if_data *sdata;
2385
2386                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2387                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2388                         vif = &sdata->vif;
2389         }
2390
2391         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2392 }
2393
2394 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2395                                    struct sk_buff *skb,
2396                                    struct netlink_callback *cb,
2397                                    void *data, int len)
2398 {
2399         struct ieee80211_local *local = wiphy_priv(wiphy);
2400
2401         if (!local->ops->testmode_dump)
2402                 return -EOPNOTSUPP;
2403
2404         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2405 }
2406 #endif
2407
2408 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2409                                 enum ieee80211_smps_mode smps_mode)
2410 {
2411         struct sta_info *sta;
2412         enum ieee80211_smps_mode old_req;
2413         int i;
2414
2415         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2416                 return -EINVAL;
2417
2418         if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2419                 return 0;
2420
2421         old_req = sdata->u.ap.req_smps;
2422         sdata->u.ap.req_smps = smps_mode;
2423
2424         /* AUTOMATIC doesn't mean much for AP - don't allow it */
2425         if (old_req == smps_mode ||
2426             smps_mode == IEEE80211_SMPS_AUTOMATIC)
2427                 return 0;
2428
2429          /* If no associated stations, there's no need to do anything */
2430         if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2431                 sdata->smps_mode = smps_mode;
2432                 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2433                 return 0;
2434         }
2435
2436         ht_dbg(sdata,
2437                "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2438                smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2439
2440         mutex_lock(&sdata->local->sta_mtx);
2441         for (i = 0; i < STA_HASH_SIZE; i++) {
2442                 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2443                                 lockdep_is_held(&sdata->local->sta_mtx));
2444                      sta;
2445                      sta = rcu_dereference_protected(sta->hnext,
2446                                 lockdep_is_held(&sdata->local->sta_mtx))) {
2447                         /*
2448                          * Only stations associated to our AP and
2449                          * associated VLANs
2450                          */
2451                         if (sta->sdata->bss != &sdata->u.ap)
2452                                 continue;
2453
2454                         /* This station doesn't support MIMO - skip it */
2455                         if (sta_info_tx_streams(sta) == 1)
2456                                 continue;
2457
2458                         /*
2459                          * Don't wake up a STA just to send the action frame
2460                          * unless we are getting more restrictive.
2461                          */
2462                         if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2463                             !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2464                                                            smps_mode)) {
2465                                 ht_dbg(sdata,
2466                                        "Won't send SMPS to sleeping STA %pM\n",
2467                                        sta->sta.addr);
2468                                 continue;
2469                         }
2470
2471                         /*
2472                          * If the STA is not authorized, wait until it gets
2473                          * authorized and the action frame will be sent then.
2474                          */
2475                         if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2476                                 continue;
2477
2478                         ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2479                         ieee80211_send_smps_action(sdata, smps_mode,
2480                                                    sta->sta.addr,
2481                                                    sdata->vif.bss_conf.bssid);
2482                 }
2483         }
2484         mutex_unlock(&sdata->local->sta_mtx);
2485
2486         sdata->smps_mode = smps_mode;
2487         ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2488
2489         return 0;
2490 }
2491
2492 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2493                                  enum ieee80211_smps_mode smps_mode)
2494 {
2495         const u8 *ap;
2496         enum ieee80211_smps_mode old_req;
2497         int err;
2498
2499         lockdep_assert_held(&sdata->wdev.mtx);
2500
2501         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2502                 return -EINVAL;
2503
2504         old_req = sdata->u.mgd.req_smps;
2505         sdata->u.mgd.req_smps = smps_mode;
2506
2507         if (old_req == smps_mode &&
2508             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2509                 return 0;
2510
2511         /*
2512          * If not associated, or current association is not an HT
2513          * association, there's no need to do anything, just store
2514          * the new value until we associate.
2515          */
2516         if (!sdata->u.mgd.associated ||
2517             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2518                 return 0;
2519
2520         ap = sdata->u.mgd.associated->bssid;
2521
2522         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2523                 if (sdata->u.mgd.powersave)
2524                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2525                 else
2526                         smps_mode = IEEE80211_SMPS_OFF;
2527         }
2528
2529         /* send SM PS frame to AP */
2530         err = ieee80211_send_smps_action(sdata, smps_mode,
2531                                          ap, ap);
2532         if (err)
2533                 sdata->u.mgd.req_smps = old_req;
2534
2535         return err;
2536 }
2537
2538 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2539                                     bool enabled, int timeout)
2540 {
2541         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2542         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2543
2544         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2545                 return -EOPNOTSUPP;
2546
2547         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2548                 return -EOPNOTSUPP;
2549
2550         if (enabled == sdata->u.mgd.powersave &&
2551             timeout == local->dynamic_ps_forced_timeout)
2552                 return 0;
2553
2554         sdata->u.mgd.powersave = enabled;
2555         local->dynamic_ps_forced_timeout = timeout;
2556
2557         /* no change, but if automatic follow powersave */
2558         sdata_lock(sdata);
2559         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2560         sdata_unlock(sdata);
2561
2562         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2563                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2564
2565         ieee80211_recalc_ps(local, -1);
2566         ieee80211_recalc_ps_vif(sdata);
2567
2568         return 0;
2569 }
2570
2571 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2572                                          struct net_device *dev,
2573                                          s32 rssi_thold, u32 rssi_hyst)
2574 {
2575         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2576         struct ieee80211_vif *vif = &sdata->vif;
2577         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2578
2579         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2580             rssi_hyst == bss_conf->cqm_rssi_hyst)
2581                 return 0;
2582
2583         bss_conf->cqm_rssi_thold = rssi_thold;
2584         bss_conf->cqm_rssi_hyst = rssi_hyst;
2585
2586         /* tell the driver upon association, unless already associated */
2587         if (sdata->u.mgd.associated &&
2588             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2589                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2590
2591         return 0;
2592 }
2593
2594 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2595                                       struct net_device *dev,
2596                                       const u8 *addr,
2597                                       const struct cfg80211_bitrate_mask *mask)
2598 {
2599         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2600         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2601         int i, ret;
2602
2603         if (!ieee80211_sdata_running(sdata))
2604                 return -ENETDOWN;
2605
2606         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2607                 ret = drv_set_bitrate_mask(local, sdata, mask);
2608                 if (ret)
2609                         return ret;
2610         }
2611
2612         for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2613                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2614                 int j;
2615
2616                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2617                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2618                        sizeof(mask->control[i].ht_mcs));
2619
2620                 sdata->rc_has_mcs_mask[i] = false;
2621                 if (!sband)
2622                         continue;
2623
2624                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2625                         if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2626                                 sdata->rc_has_mcs_mask[i] = true;
2627                                 break;
2628                         }
2629         }
2630
2631         return 0;
2632 }
2633
2634 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2635                                     struct ieee80211_sub_if_data *sdata,
2636                                     struct ieee80211_channel *channel,
2637                                     unsigned int duration, u64 *cookie,
2638                                     struct sk_buff *txskb,
2639                                     enum ieee80211_roc_type type)
2640 {
2641         struct ieee80211_roc_work *roc, *tmp;
2642         bool queued = false;
2643         int ret;
2644
2645         lockdep_assert_held(&local->mtx);
2646
2647         if (local->use_chanctx && !local->ops->remain_on_channel)
2648                 return -EOPNOTSUPP;
2649
2650         roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2651         if (!roc)
2652                 return -ENOMEM;
2653
2654         /*
2655          * If the duration is zero, then the driver
2656          * wouldn't actually do anything. Set it to
2657          * 10 for now.
2658          *
2659          * TODO: cancel the off-channel operation
2660          *       when we get the SKB's TX status and
2661          *       the wait time was zero before.
2662          */
2663         if (!duration)
2664                 duration = 10;
2665
2666         roc->chan = channel;
2667         roc->duration = duration;
2668         roc->req_duration = duration;
2669         roc->frame = txskb;
2670         roc->type = type;
2671         roc->mgmt_tx_cookie = (unsigned long)txskb;
2672         roc->sdata = sdata;
2673         INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2674         INIT_LIST_HEAD(&roc->dependents);
2675
2676         /*
2677          * cookie is either the roc cookie (for normal roc)
2678          * or the SKB (for mgmt TX)
2679          */
2680         if (!txskb) {
2681                 /* local->mtx protects this */
2682                 local->roc_cookie_counter++;
2683                 roc->cookie = local->roc_cookie_counter;
2684                 /* wow, you wrapped 64 bits ... more likely a bug */
2685                 if (WARN_ON(roc->cookie == 0)) {
2686                         roc->cookie = 1;
2687                         local->roc_cookie_counter++;
2688                 }
2689                 *cookie = roc->cookie;
2690         } else {
2691                 *cookie = (unsigned long)txskb;
2692         }
2693
2694         /* if there's one pending or we're scanning, queue this one */
2695         if (!list_empty(&local->roc_list) ||
2696             local->scanning || local->radar_detect_enabled)
2697                 goto out_check_combine;
2698
2699         /* if not HW assist, just queue & schedule work */
2700         if (!local->ops->remain_on_channel) {
2701                 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2702                 goto out_queue;
2703         }
2704
2705         /* otherwise actually kick it off here (for error handling) */
2706
2707         ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2708         if (ret) {
2709                 kfree(roc);
2710                 return ret;
2711         }
2712
2713         roc->started = true;
2714         goto out_queue;
2715
2716  out_check_combine:
2717         list_for_each_entry(tmp, &local->roc_list, list) {
2718                 if (tmp->chan != channel || tmp->sdata != sdata)
2719                         continue;
2720
2721                 /*
2722                  * Extend this ROC if possible:
2723                  *
2724                  * If it hasn't started yet, just increase the duration
2725                  * and add the new one to the list of dependents.
2726                  * If the type of the new ROC has higher priority, modify the
2727                  * type of the previous one to match that of the new one.
2728                  */
2729                 if (!tmp->started) {
2730                         list_add_tail(&roc->list, &tmp->dependents);
2731                         tmp->duration = max(tmp->duration, roc->duration);
2732                         tmp->type = max(tmp->type, roc->type);
2733                         queued = true;
2734                         break;
2735                 }
2736
2737                 /* If it has already started, it's more difficult ... */
2738                 if (local->ops->remain_on_channel) {
2739                         unsigned long j = jiffies;
2740
2741                         /*
2742                          * In the offloaded ROC case, if it hasn't begun, add
2743                          * this new one to the dependent list to be handled
2744                          * when the master one begins. If it has begun,
2745                          * check that there's still a minimum time left and
2746                          * if so, start this one, transmitting the frame, but
2747                          * add it to the list directly after this one with
2748                          * a reduced time so we'll ask the driver to execute
2749                          * it right after finishing the previous one, in the
2750                          * hope that it'll also be executed right afterwards,
2751                          * effectively extending the old one.
2752                          * If there's no minimum time left, just add it to the
2753                          * normal list.
2754                          * TODO: the ROC type is ignored here, assuming that it
2755                          * is better to immediately use the current ROC.
2756                          */
2757                         if (!tmp->hw_begun) {
2758                                 list_add_tail(&roc->list, &tmp->dependents);
2759                                 queued = true;
2760                                 break;
2761                         }
2762
2763                         if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2764                                         tmp->hw_start_time +
2765                                         msecs_to_jiffies(tmp->duration))) {
2766                                 int new_dur;
2767
2768                                 ieee80211_handle_roc_started(roc);
2769
2770                                 new_dur = roc->duration -
2771                                           jiffies_to_msecs(tmp->hw_start_time +
2772                                                            msecs_to_jiffies(
2773                                                                 tmp->duration) -
2774                                                            j);
2775
2776                                 if (new_dur > 0) {
2777                                         /* add right after tmp */
2778                                         list_add(&roc->list, &tmp->list);
2779                                 } else {
2780                                         list_add_tail(&roc->list,
2781                                                       &tmp->dependents);
2782                                 }
2783                                 queued = true;
2784                         }
2785                 } else if (del_timer_sync(&tmp->work.timer)) {
2786                         unsigned long new_end;
2787
2788                         /*
2789                          * In the software ROC case, cancel the timer, if
2790                          * that fails then the finish work is already
2791                          * queued/pending and thus we queue the new ROC
2792                          * normally, if that succeeds then we can extend
2793                          * the timer duration and TX the frame (if any.)
2794                          */
2795
2796                         list_add_tail(&roc->list, &tmp->dependents);
2797                         queued = true;
2798
2799                         new_end = jiffies + msecs_to_jiffies(roc->duration);
2800
2801                         /* ok, it was started & we canceled timer */
2802                         if (time_after(new_end, tmp->work.timer.expires))
2803                                 mod_timer(&tmp->work.timer, new_end);
2804                         else
2805                                 add_timer(&tmp->work.timer);
2806
2807                         ieee80211_handle_roc_started(roc);
2808                 }
2809                 break;
2810         }
2811
2812  out_queue:
2813         if (!queued)
2814                 list_add_tail(&roc->list, &local->roc_list);
2815
2816         return 0;
2817 }
2818
2819 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2820                                        struct wireless_dev *wdev,
2821                                        struct ieee80211_channel *chan,
2822                                        unsigned int duration,
2823                                        u64 *cookie)
2824 {
2825         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2826         struct ieee80211_local *local = sdata->local;
2827         int ret;
2828
2829         mutex_lock(&local->mtx);
2830         ret = ieee80211_start_roc_work(local, sdata, chan,
2831                                        duration, cookie, NULL,
2832                                        IEEE80211_ROC_TYPE_NORMAL);
2833         mutex_unlock(&local->mtx);
2834
2835         return ret;
2836 }
2837
2838 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2839                                 u64 cookie, bool mgmt_tx)
2840 {
2841         struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2842         int ret;
2843
2844         mutex_lock(&local->mtx);
2845         list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2846                 struct ieee80211_roc_work *dep, *tmp2;
2847
2848                 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2849                         if (!mgmt_tx && dep->cookie != cookie)
2850                                 continue;
2851                         else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2852                                 continue;
2853                         /* found dependent item -- just remove it */
2854                         list_del(&dep->list);
2855                         mutex_unlock(&local->mtx);
2856
2857                         ieee80211_roc_notify_destroy(dep, true);
2858                         return 0;
2859                 }
2860
2861                 if (!mgmt_tx && roc->cookie != cookie)
2862                         continue;
2863                 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2864                         continue;
2865
2866                 found = roc;
2867                 break;
2868         }
2869
2870         if (!found) {
2871                 mutex_unlock(&local->mtx);
2872                 return -ENOENT;
2873         }
2874
2875         /*
2876          * We found the item to cancel, so do that. Note that it
2877          * may have dependents, which we also cancel (and send
2878          * the expired signal for.) Not doing so would be quite
2879          * tricky here, but we may need to fix it later.
2880          */
2881
2882         if (local->ops->remain_on_channel) {
2883                 if (found->started) {
2884                         ret = drv_cancel_remain_on_channel(local);
2885                         if (WARN_ON_ONCE(ret)) {
2886                                 mutex_unlock(&local->mtx);
2887                                 return ret;
2888                         }
2889                 }
2890
2891                 list_del(&found->list);
2892
2893                 if (found->started)
2894                         ieee80211_start_next_roc(local);
2895                 mutex_unlock(&local->mtx);
2896
2897                 ieee80211_roc_notify_destroy(found, true);
2898         } else {
2899                 /* work may be pending so use it all the time */
2900                 found->abort = true;
2901                 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2902
2903                 mutex_unlock(&local->mtx);
2904
2905                 /* work will clean up etc */
2906                 flush_delayed_work(&found->work);
2907                 WARN_ON(!found->to_be_freed);
2908                 kfree(found);
2909         }
2910
2911         return 0;
2912 }
2913
2914 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2915                                               struct wireless_dev *wdev,
2916                                               u64 cookie)
2917 {
2918         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2919         struct ieee80211_local *local = sdata->local;
2920
2921         return ieee80211_cancel_roc(local, cookie, false);
2922 }
2923
2924 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2925                                            struct net_device *dev,
2926                                            struct cfg80211_chan_def *chandef,
2927                                            u32 cac_time_ms)
2928 {
2929         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2930         struct ieee80211_local *local = sdata->local;
2931         int err;
2932
2933         mutex_lock(&local->mtx);
2934         if (!list_empty(&local->roc_list) || local->scanning) {
2935                 err = -EBUSY;
2936                 goto out_unlock;
2937         }
2938
2939         /* whatever, but channel contexts should not complain about that one */
2940         sdata->smps_mode = IEEE80211_SMPS_OFF;
2941         sdata->needed_rx_chains = local->rx_chains;
2942
2943         err = ieee80211_vif_use_channel(sdata, chandef,
2944                                         IEEE80211_CHANCTX_SHARED);
2945         if (err)
2946                 goto out_unlock;
2947
2948         ieee80211_queue_delayed_work(&sdata->local->hw,
2949                                      &sdata->dfs_cac_timer_work,
2950                                      msecs_to_jiffies(cac_time_ms));
2951
2952  out_unlock:
2953         mutex_unlock(&local->mtx);
2954         return err;
2955 }
2956
2957 static struct cfg80211_beacon_data *
2958 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2959 {
2960         struct cfg80211_beacon_data *new_beacon;
2961         u8 *pos;
2962         int len;
2963
2964         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2965               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2966               beacon->probe_resp_len;
2967
2968         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2969         if (!new_beacon)
2970                 return NULL;
2971
2972         pos = (u8 *)(new_beacon + 1);
2973         if (beacon->head_len) {
2974                 new_beacon->head_len = beacon->head_len;
2975                 new_beacon->head = pos;
2976                 memcpy(pos, beacon->head, beacon->head_len);
2977                 pos += beacon->head_len;
2978         }
2979         if (beacon->tail_len) {
2980                 new_beacon->tail_len = beacon->tail_len;
2981                 new_beacon->tail = pos;
2982                 memcpy(pos, beacon->tail, beacon->tail_len);
2983                 pos += beacon->tail_len;
2984         }
2985         if (beacon->beacon_ies_len) {
2986                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2987                 new_beacon->beacon_ies = pos;
2988                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2989                 pos += beacon->beacon_ies_len;
2990         }
2991         if (beacon->proberesp_ies_len) {
2992                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2993                 new_beacon->proberesp_ies = pos;
2994                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2995                 pos += beacon->proberesp_ies_len;
2996         }
2997         if (beacon->assocresp_ies_len) {
2998                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2999                 new_beacon->assocresp_ies = pos;
3000                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3001                 pos += beacon->assocresp_ies_len;
3002         }
3003         if (beacon->probe_resp_len) {
3004                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3005                 beacon->probe_resp = pos;
3006                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3007                 pos += beacon->probe_resp_len;
3008         }
3009
3010         return new_beacon;
3011 }
3012
3013 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3014 {
3015         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3016
3017         ieee80211_queue_work(&sdata->local->hw,
3018                              &sdata->csa_finalize_work);
3019 }
3020 EXPORT_SYMBOL(ieee80211_csa_finish);
3021
3022 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3023 {
3024         struct ieee80211_local *local = sdata->local;
3025         int err, changed = 0;
3026
3027         sdata_assert_lock(sdata);
3028
3029         mutex_lock(&local->mtx);
3030         sdata->radar_required = sdata->csa_radar_required;
3031         err = ieee80211_vif_change_channel(sdata, &changed);
3032         mutex_unlock(&local->mtx);
3033         if (WARN_ON(err < 0))
3034                 return;
3035
3036         if (!local->use_chanctx) {
3037                 local->_oper_chandef = sdata->csa_chandef;
3038                 ieee80211_hw_config(local, 0);
3039         }
3040
3041         sdata->vif.csa_active = false;
3042         switch (sdata->vif.type) {
3043         case NL80211_IFTYPE_AP:
3044                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3045                 kfree(sdata->u.ap.next_beacon);
3046                 sdata->u.ap.next_beacon = NULL;
3047
3048                 if (err < 0)
3049                         return;
3050                 changed |= err;
3051                 break;
3052         case NL80211_IFTYPE_ADHOC:
3053                 err = ieee80211_ibss_finish_csa(sdata);
3054                 if (err < 0)
3055                         return;
3056                 changed |= err;
3057                 break;
3058 #ifdef CONFIG_MAC80211_MESH
3059         case NL80211_IFTYPE_MESH_POINT:
3060                 err = ieee80211_mesh_finish_csa(sdata);
3061                 if (err < 0)
3062                         return;
3063                 changed |= err;
3064                 break;
3065 #endif
3066         default:
3067                 WARN_ON(1);
3068                 return;
3069         }
3070
3071         ieee80211_bss_info_change_notify(sdata, changed);
3072
3073         ieee80211_wake_queues_by_reason(&sdata->local->hw,
3074                                         IEEE80211_MAX_QUEUE_MAP,
3075                                         IEEE80211_QUEUE_STOP_REASON_CSA);
3076
3077         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3078 }
3079
3080 void ieee80211_csa_finalize_work(struct work_struct *work)
3081 {
3082         struct ieee80211_sub_if_data *sdata =
3083                 container_of(work, struct ieee80211_sub_if_data,
3084                              csa_finalize_work);
3085
3086         sdata_lock(sdata);
3087         /* AP might have been stopped while waiting for the lock. */
3088         if (!sdata->vif.csa_active)
3089                 goto unlock;
3090
3091         if (!ieee80211_sdata_running(sdata))
3092                 goto unlock;
3093
3094         ieee80211_csa_finalize(sdata);
3095
3096 unlock:
3097         sdata_unlock(sdata);
3098 }
3099
3100 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3101                                     struct cfg80211_csa_settings *params,
3102                                     u32 *changed)
3103 {
3104         int err;
3105
3106         switch (sdata->vif.type) {
3107         case NL80211_IFTYPE_AP:
3108                 sdata->u.ap.next_beacon =
3109                         cfg80211_beacon_dup(&params->beacon_after);
3110                 if (!sdata->u.ap.next_beacon)
3111                         return -ENOMEM;
3112
3113                 /*
3114                  * With a count of 0, we don't have to wait for any
3115                  * TBTT before switching, so complete the CSA
3116                  * immediately.  In theory, with a count == 1 we
3117                  * should delay the switch until just before the next
3118                  * TBTT, but that would complicate things so we switch
3119                  * immediately too.  If we would delay the switch
3120                  * until the next TBTT, we would have to set the probe
3121                  * response here.
3122                  *
3123                  * TODO: A channel switch with count <= 1 without
3124                  * sending a CSA action frame is kind of useless,
3125                  * because the clients won't know we're changing
3126                  * channels.  The action frame must be implemented
3127                  * either here or in the userspace.
3128                  */
3129                 if (params->count <= 1)
3130                         break;
3131
3132                 sdata->csa_counter_offset_beacon =
3133                         params->counter_offset_beacon;
3134                 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3135                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3136                 if (err < 0) {
3137                         kfree(sdata->u.ap.next_beacon);
3138                         return err;
3139                 }
3140                 *changed |= err;
3141
3142                 break;
3143         case NL80211_IFTYPE_ADHOC:
3144                 if (!sdata->vif.bss_conf.ibss_joined)
3145                         return -EINVAL;
3146
3147                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3148                         return -EINVAL;
3149
3150                 switch (params->chandef.width) {
3151                 case NL80211_CHAN_WIDTH_40:
3152                         if (cfg80211_get_chandef_type(&params->chandef) !=
3153                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3154                                 return -EINVAL;
3155                 case NL80211_CHAN_WIDTH_5:
3156                 case NL80211_CHAN_WIDTH_10:
3157                 case NL80211_CHAN_WIDTH_20_NOHT:
3158                 case NL80211_CHAN_WIDTH_20:
3159                         break;
3160                 default:
3161                         return -EINVAL;
3162                 }
3163
3164                 /* changes into another band are not supported */
3165                 if (sdata->u.ibss.chandef.chan->band !=
3166                     params->chandef.chan->band)
3167                         return -EINVAL;
3168
3169                 /* see comments in the NL80211_IFTYPE_AP block */
3170                 if (params->count > 1) {
3171                         err = ieee80211_ibss_csa_beacon(sdata, params);
3172                         if (err < 0)
3173                                 return err;
3174                         *changed |= err;
3175                 }
3176
3177                 ieee80211_send_action_csa(sdata, params);
3178
3179                 break;
3180 #ifdef CONFIG_MAC80211_MESH
3181         case NL80211_IFTYPE_MESH_POINT: {
3182                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3183
3184                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3185                         return -EINVAL;
3186
3187                 /* changes into another band are not supported */
3188                 if (sdata->vif.bss_conf.chandef.chan->band !=
3189                     params->chandef.chan->band)
3190                         return -EINVAL;
3191
3192                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3193                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3194                         if (!ifmsh->pre_value)
3195                                 ifmsh->pre_value = 1;
3196                         else
3197                                 ifmsh->pre_value++;
3198                 }
3199
3200                 /* see comments in the NL80211_IFTYPE_AP block */
3201                 if (params->count > 1) {
3202                         err = ieee80211_mesh_csa_beacon(sdata, params);
3203                         if (err < 0) {
3204                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3205                                 return err;
3206                         }
3207                         *changed |= err;
3208                 }
3209
3210                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3211                         ieee80211_send_action_csa(sdata, params);
3212
3213                 break;
3214                 }
3215 #endif
3216         default:
3217                 return -EOPNOTSUPP;
3218         }
3219
3220         return 0;
3221 }
3222
3223 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3224                              struct cfg80211_csa_settings *params)
3225 {
3226         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3227         struct ieee80211_local *local = sdata->local;
3228         struct ieee80211_chanctx_conf *conf;
3229         struct ieee80211_chanctx *chanctx;
3230         int err, num_chanctx, changed = 0;
3231
3232         sdata_assert_lock(sdata);
3233
3234         if (!list_empty(&local->roc_list) || local->scanning)
3235                 return -EBUSY;
3236
3237         if (sdata->wdev.cac_started)
3238                 return -EBUSY;
3239
3240         if (cfg80211_chandef_identical(&params->chandef,
3241                                        &sdata->vif.bss_conf.chandef))
3242                 return -EINVAL;
3243
3244         mutex_lock(&local->chanctx_mtx);
3245         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3246                                          lockdep_is_held(&local->chanctx_mtx));
3247         if (!conf) {
3248                 mutex_unlock(&local->chanctx_mtx);
3249                 return -EBUSY;
3250         }
3251
3252         /* don't handle for multi-VIF cases */
3253         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3254         if (ieee80211_chanctx_refcount(local, chanctx) > 1) {
3255                 mutex_unlock(&local->chanctx_mtx);
3256                 return -EBUSY;
3257         }
3258         num_chanctx = 0;
3259         list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3260                 num_chanctx++;
3261         mutex_unlock(&local->chanctx_mtx);
3262
3263         if (num_chanctx > 1)
3264                 return -EBUSY;
3265
3266         /* don't allow another channel switch if one is already active. */
3267         if (sdata->vif.csa_active)
3268                 return -EBUSY;
3269
3270         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3271         if (err)
3272                 return err;
3273
3274         sdata->csa_radar_required = params->radar_required;
3275
3276         if (params->block_tx)
3277                 ieee80211_stop_queues_by_reason(&local->hw,
3278                                 IEEE80211_MAX_QUEUE_MAP,
3279                                 IEEE80211_QUEUE_STOP_REASON_CSA);
3280
3281         sdata->csa_chandef = params->chandef;
3282         sdata->vif.csa_active = true;
3283
3284         if (changed) {
3285                 ieee80211_bss_info_change_notify(sdata, changed);
3286                 drv_channel_switch_beacon(sdata, &params->chandef);
3287         } else {
3288                 /* if the beacon didn't change, we can finalize immediately */
3289                 ieee80211_csa_finalize(sdata);
3290         }
3291
3292         return 0;
3293 }
3294
3295 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3296                              struct cfg80211_mgmt_tx_params *params,
3297                              u64 *cookie)
3298 {
3299         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3300         struct ieee80211_local *local = sdata->local;
3301         struct sk_buff *skb;
3302         struct sta_info *sta;
3303         const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3304         bool need_offchan = false;
3305         u32 flags;
3306         int ret;
3307
3308         if (params->dont_wait_for_ack)
3309                 flags = IEEE80211_TX_CTL_NO_ACK;
3310         else
3311                 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3312                         IEEE80211_TX_CTL_REQ_TX_STATUS;
3313
3314         if (params->no_cck)
3315                 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3316
3317         switch (sdata->vif.type) {
3318         case NL80211_IFTYPE_ADHOC:
3319                 if (!sdata->vif.bss_conf.ibss_joined)
3320                         need_offchan = true;
3321                 /* fall through */
3322 #ifdef CONFIG_MAC80211_MESH
3323         case NL80211_IFTYPE_MESH_POINT:
3324                 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3325                     !sdata->u.mesh.mesh_id_len)
3326                         need_offchan = true;
3327                 /* fall through */
3328 #endif
3329         case NL80211_IFTYPE_AP:
3330         case NL80211_IFTYPE_AP_VLAN:
3331         case NL80211_IFTYPE_P2P_GO:
3332                 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3333                     !ieee80211_vif_is_mesh(&sdata->vif) &&
3334                     !rcu_access_pointer(sdata->bss->beacon))
3335                         need_offchan = true;
3336                 if (!ieee80211_is_action(mgmt->frame_control) ||
3337                     mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3338                     mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3339                     mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3340                         break;
3341                 rcu_read_lock();
3342                 sta = sta_info_get(sdata, mgmt->da);
3343                 rcu_read_unlock();
3344                 if (!sta)
3345                         return -ENOLINK;
3346                 break;
3347         case NL80211_IFTYPE_STATION:
3348         case NL80211_IFTYPE_P2P_CLIENT:
3349                 if (!sdata->u.mgd.associated)
3350                         need_offchan = true;
3351                 break;
3352         case NL80211_IFTYPE_P2P_DEVICE:
3353                 need_offchan = true;
3354                 break;
3355         default:
3356                 return -EOPNOTSUPP;
3357         }
3358
3359         /* configurations requiring offchan cannot work if no channel has been
3360          * specified
3361          */
3362         if (need_offchan && !params->chan)
3363                 return -EINVAL;
3364
3365         mutex_lock(&local->mtx);
3366
3367         /* Check if the operating channel is the requested channel */
3368         if (!need_offchan) {
3369                 struct ieee80211_chanctx_conf *chanctx_conf;
3370
3371                 rcu_read_lock();
3372                 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3373
3374                 if (chanctx_conf) {
3375                         need_offchan = params->chan &&
3376                                        (params->chan !=
3377                                         chanctx_conf->def.chan);
3378                 } else if (!params->chan) {
3379                         ret = -EINVAL;
3380                         rcu_read_unlock();
3381                         goto out_unlock;
3382                 } else {
3383                         need_offchan = true;
3384                 }
3385                 rcu_read_unlock();
3386         }
3387
3388         if (need_offchan && !params->offchan) {
3389                 ret = -EBUSY;
3390                 goto out_unlock;
3391         }
3392
3393         skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3394         if (!skb) {
3395                 ret = -ENOMEM;
3396                 goto out_unlock;
3397         }
3398         skb_reserve(skb, local->hw.extra_tx_headroom);
3399
3400         memcpy(skb_put(skb, params->len), params->buf, params->len);
3401
3402         IEEE80211_SKB_CB(skb)->flags = flags;
3403
3404         skb->dev = sdata->dev;
3405
3406         if (!need_offchan) {
3407                 *cookie = (unsigned long) skb;
3408                 ieee80211_tx_skb(sdata, skb);
3409                 ret = 0;
3410                 goto out_unlock;
3411         }
3412
3413         IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3414                                         IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3415         if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3416                 IEEE80211_SKB_CB(skb)->hw_queue =
3417                         local->hw.offchannel_tx_hw_queue;
3418
3419         /* This will handle all kinds of coalescing and immediate TX */
3420         ret = ieee80211_start_roc_work(local, sdata, params->chan,
3421                                        params->wait, cookie, skb,
3422                                        IEEE80211_ROC_TYPE_MGMT_TX);
3423         if (ret)
3424                 kfree_skb(skb);
3425  out_unlock:
3426         mutex_unlock(&local->mtx);
3427         return ret;
3428 }
3429
3430 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3431                                          struct wireless_dev *wdev,
3432                                          u64 cookie)
3433 {
3434         struct ieee80211_local *local = wiphy_priv(wiphy);
3435
3436         return ieee80211_cancel_roc(local, cookie, true);
3437 }
3438
3439 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3440                                           struct wireless_dev *wdev,
3441                                           u16 frame_type, bool reg)
3442 {
3443         struct ieee80211_local *local = wiphy_priv(wiphy);
3444
3445         switch (frame_type) {
3446         case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3447                 if (reg)
3448                         local->probe_req_reg++;
3449                 else
3450                         local->probe_req_reg--;
3451
3452                 if (!local->open_count)
3453                         break;
3454
3455                 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3456                 break;
3457         default:
3458                 break;
3459         }
3460 }
3461
3462 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3463 {
3464         struct ieee80211_local *local = wiphy_priv(wiphy);
3465
3466         if (local->started)
3467                 return -EOPNOTSUPP;
3468
3469         return drv_set_antenna(local, tx_ant, rx_ant);
3470 }
3471
3472 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3473 {
3474         struct ieee80211_local *local = wiphy_priv(wiphy);
3475
3476         return drv_get_antenna(local, tx_ant, rx_ant);
3477 }
3478
3479 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3480 {
3481         struct ieee80211_local *local = wiphy_priv(wiphy);
3482
3483         return drv_set_ringparam(local, tx, rx);
3484 }
3485
3486 static void ieee80211_get_ringparam(struct wiphy *wiphy,
3487                                     u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3488 {
3489         struct ieee80211_local *local = wiphy_priv(wiphy);
3490
3491         drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3492 }
3493
3494 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3495                                     struct net_device *dev,
3496                                     struct cfg80211_gtk_rekey_data *data)
3497 {
3498         struct ieee80211_local *local = wiphy_priv(wiphy);
3499         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3500
3501         if (!local->ops->set_rekey_data)
3502                 return -EOPNOTSUPP;
3503
3504         drv_set_rekey_data(local, sdata, data);
3505
3506         return 0;
3507 }
3508
3509 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3510 {
3511         u8 *pos = (void *)skb_put(skb, 7);
3512
3513         *pos++ = WLAN_EID_EXT_CAPABILITY;
3514         *pos++ = 5; /* len */
3515         *pos++ = 0x0;
3516         *pos++ = 0x0;
3517         *pos++ = 0x0;
3518         *pos++ = 0x0;
3519         *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3520 }
3521
3522 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3523 {
3524         struct ieee80211_local *local = sdata->local;
3525         u16 capab;
3526
3527         capab = 0;
3528         if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
3529                 return capab;
3530
3531         if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3532                 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3533         if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3534                 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3535
3536         return capab;
3537 }
3538
3539 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3540                                        u8 *peer, u8 *bssid)
3541 {
3542         struct ieee80211_tdls_lnkie *lnkid;
3543
3544         lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3545
3546         lnkid->ie_type = WLAN_EID_LINK_ID;
3547         lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3548
3549         memcpy(lnkid->bssid, bssid, ETH_ALEN);
3550         memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3551         memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3552 }
3553
3554 static int
3555 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3556                                u8 *peer, u8 action_code, u8 dialog_token,
3557                                u16 status_code, struct sk_buff *skb)
3558 {
3559         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3560         enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3561         struct ieee80211_tdls_data *tf;
3562
3563         tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3564
3565         memcpy(tf->da, peer, ETH_ALEN);
3566         memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3567         tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3568         tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3569
3570         switch (action_code) {
3571         case WLAN_TDLS_SETUP_REQUEST:
3572                 tf->category = WLAN_CATEGORY_TDLS;
3573                 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3574
3575                 skb_put(skb, sizeof(tf->u.setup_req));
3576                 tf->u.setup_req.dialog_token = dialog_token;
3577                 tf->u.setup_req.capability =
3578                         cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3579
3580                 ieee80211_add_srates_ie(sdata, skb, false, band);
3581                 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3582                 ieee80211_tdls_add_ext_capab(skb);
3583                 break;
3584         case WLAN_TDLS_SETUP_RESPONSE:
3585                 tf->category = WLAN_CATEGORY_TDLS;
3586                 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3587
3588                 skb_put(skb, sizeof(tf->u.setup_resp));
3589                 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3590                 tf->u.setup_resp.dialog_token = dialog_token;
3591                 tf->u.setup_resp.capability =
3592                         cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3593
3594                 ieee80211_add_srates_ie(sdata, skb, false, band);
3595                 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3596                 ieee80211_tdls_add_ext_capab(skb);
3597                 break;
3598         case WLAN_TDLS_SETUP_CONFIRM:
3599                 tf->category = WLAN_CATEGORY_TDLS;
3600                 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3601
3602                 skb_put(skb, sizeof(tf->u.setup_cfm));
3603                 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3604                 tf->u.setup_cfm.dialog_token = dialog_token;
3605                 break;
3606         case WLAN_TDLS_TEARDOWN:
3607                 tf->category = WLAN_CATEGORY_TDLS;
3608                 tf->action_code = WLAN_TDLS_TEARDOWN;
3609
3610                 skb_put(skb, sizeof(tf->u.teardown));
3611                 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3612                 break;
3613         case WLAN_TDLS_DISCOVERY_REQUEST:
3614                 tf->category = WLAN_CATEGORY_TDLS;
3615                 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3616
3617                 skb_put(skb, sizeof(tf->u.discover_req));
3618                 tf->u.discover_req.dialog_token = dialog_token;
3619                 break;
3620         default:
3621                 return -EINVAL;
3622         }
3623
3624         return 0;
3625 }
3626
3627 static int
3628 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3629                            u8 *peer, u8 action_code, u8 dialog_token,
3630                            u16 status_code, struct sk_buff *skb)
3631 {
3632         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3633         enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3634         struct ieee80211_mgmt *mgmt;
3635
3636         mgmt = (void *)skb_put(skb, 24);
3637         memset(mgmt, 0, 24);
3638         memcpy(mgmt->da, peer, ETH_ALEN);
3639         memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3640         memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3641
3642         mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3643                                           IEEE80211_STYPE_ACTION);
3644
3645         switch (action_code) {
3646         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3647                 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3648                 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3649                 mgmt->u.action.u.tdls_discover_resp.action_code =
3650                         WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3651                 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3652                         dialog_token;
3653                 mgmt->u.action.u.tdls_discover_resp.capability =
3654                         cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3655
3656                 ieee80211_add_srates_ie(sdata, skb, false, band);
3657                 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3658                 ieee80211_tdls_add_ext_capab(skb);
3659                 break;
3660         default:
3661                 return -EINVAL;
3662         }
3663
3664         return 0;
3665 }
3666
3667 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3668                                u8 *peer, u8 action_code, u8 dialog_token,
3669                                u16 status_code, u32 peer_capability,
3670                                const u8 *extra_ies, size_t extra_ies_len)
3671 {
3672         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3673         struct ieee80211_local *local = sdata->local;
3674         struct sk_buff *skb = NULL;
3675         bool send_direct;
3676         int ret;
3677
3678         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3679                 return -ENOTSUPP;
3680
3681         /* make sure we are in managed mode, and associated */
3682         if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3683             !sdata->u.mgd.associated)
3684                 return -EINVAL;
3685
3686         tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3687                  action_code, peer);
3688
3689         skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3690                             max(sizeof(struct ieee80211_mgmt),
3691                                 sizeof(struct ieee80211_tdls_data)) +
3692                             50 + /* supported rates */
3693                             7 + /* ext capab */
3694                             extra_ies_len +
3695                             sizeof(struct ieee80211_tdls_lnkie));
3696         if (!skb)
3697                 return -ENOMEM;
3698
3699         skb_reserve(skb, local->hw.extra_tx_headroom);
3700
3701         switch (action_code) {
3702         case WLAN_TDLS_SETUP_REQUEST:
3703         case WLAN_TDLS_SETUP_RESPONSE:
3704         case WLAN_TDLS_SETUP_CONFIRM:
3705         case WLAN_TDLS_TEARDOWN:
3706         case WLAN_TDLS_DISCOVERY_REQUEST:
3707                 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3708                                                      action_code, dialog_token,
3709                                                      status_code, skb);
3710                 send_direct = false;
3711                 break;
3712         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3713                 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3714                                                  dialog_token, status_code,
3715                                                  skb);
3716                 send_direct = true;
3717                 break;
3718         default:
3719                 ret = -ENOTSUPP;
3720                 break;
3721         }
3722
3723         if (ret < 0)
3724                 goto fail;
3725
3726         if (extra_ies_len)
3727                 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3728
3729         /* the TDLS link IE is always added last */
3730         switch (action_code) {
3731         case WLAN_TDLS_SETUP_REQUEST:
3732         case WLAN_TDLS_SETUP_CONFIRM:
3733         case WLAN_TDLS_TEARDOWN:
3734         case WLAN_TDLS_DISCOVERY_REQUEST:
3735                 /* we are the initiator */
3736                 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3737                                            sdata->u.mgd.bssid);
3738                 break;
3739         case WLAN_TDLS_SETUP_RESPONSE:
3740         case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3741                 /* we are the responder */
3742                 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3743                                            sdata->u.mgd.bssid);
3744                 break;
3745         default:
3746                 ret = -ENOTSUPP;
3747                 goto fail;
3748         }
3749
3750         if (send_direct) {
3751                 ieee80211_tx_skb(sdata, skb);
3752                 return 0;
3753         }
3754
3755         /*
3756          * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3757          * we should default to AC_VI.
3758          */
3759         switch (action_code) {
3760         case WLAN_TDLS_SETUP_REQUEST:
3761         case WLAN_TDLS_SETUP_RESPONSE:
3762                 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3763                 skb->priority = 2;
3764                 break;
3765         default:
3766                 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3767                 skb->priority = 5;
3768                 break;
3769         }
3770
3771         /* disable bottom halves when entering the Tx path */
3772         local_bh_disable();
3773         ret = ieee80211_subif_start_xmit(skb, dev);
3774         local_bh_enable();
3775
3776         return ret;
3777
3778 fail:
3779         dev_kfree_skb(skb);
3780         return ret;
3781 }
3782
3783 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3784                                u8 *peer, enum nl80211_tdls_operation oper)
3785 {
3786         struct sta_info *sta;
3787         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3788
3789         if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3790                 return -ENOTSUPP;
3791
3792         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3793                 return -EINVAL;
3794
3795         tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3796
3797         switch (oper) {
3798         case NL80211_TDLS_ENABLE_LINK:
3799                 rcu_read_lock();
3800                 sta = sta_info_get(sdata, peer);
3801                 if (!sta) {
3802                         rcu_read_unlock();
3803                         return -ENOLINK;
3804                 }
3805
3806                 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3807                 rcu_read_unlock();
3808                 break;
3809         case NL80211_TDLS_DISABLE_LINK:
3810                 return sta_info_destroy_addr(sdata, peer);
3811         case NL80211_TDLS_TEARDOWN:
3812         case NL80211_TDLS_SETUP:
3813         case NL80211_TDLS_DISCOVERY_REQ:
3814                 /* We don't support in-driver setup/teardown/discovery */
3815                 return -ENOTSUPP;
3816         default:
3817                 return -ENOTSUPP;
3818         }
3819
3820         return 0;
3821 }
3822
3823 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3824                                   const u8 *peer, u64 *cookie)
3825 {
3826         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3827         struct ieee80211_local *local = sdata->local;
3828         struct ieee80211_qos_hdr *nullfunc;
3829         struct sk_buff *skb;
3830         int size = sizeof(*nullfunc);
3831         __le16 fc;
3832         bool qos;
3833         struct ieee80211_tx_info *info;
3834         struct sta_info *sta;
3835         struct ieee80211_chanctx_conf *chanctx_conf;
3836         enum ieee80211_band band;
3837
3838         rcu_read_lock();
3839         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3840         if (WARN_ON(!chanctx_conf)) {
3841                 rcu_read_unlock();
3842                 return -EINVAL;
3843         }
3844         band = chanctx_conf->def.chan->band;
3845         sta = sta_info_get_bss(sdata, peer);
3846         if (sta) {
3847                 qos = test_sta_flag(sta, WLAN_STA_WME);
3848         } else {
3849                 rcu_read_unlock();
3850                 return -ENOLINK;
3851         }
3852
3853         if (qos) {
3854                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3855                                  IEEE80211_STYPE_QOS_NULLFUNC |
3856                                  IEEE80211_FCTL_FROMDS);
3857         } else {
3858                 size -= 2;
3859                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3860                                  IEEE80211_STYPE_NULLFUNC |
3861                                  IEEE80211_FCTL_FROMDS);
3862         }
3863
3864         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3865         if (!skb) {
3866                 rcu_read_unlock();
3867                 return -ENOMEM;
3868         }
3869
3870         skb->dev = dev;
3871
3872         skb_reserve(skb, local->hw.extra_tx_headroom);
3873
3874         nullfunc = (void *) skb_put(skb, size);
3875         nullfunc->frame_control = fc;
3876         nullfunc->duration_id = 0;
3877         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3878         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3879         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3880         nullfunc->seq_ctrl = 0;
3881
3882         info = IEEE80211_SKB_CB(skb);
3883
3884         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3885                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3886
3887         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3888         skb->priority = 7;
3889         if (qos)
3890                 nullfunc->qos_ctrl = cpu_to_le16(7);
3891
3892         local_bh_disable();
3893         ieee80211_xmit(sdata, skb, band);
3894         local_bh_enable();
3895         rcu_read_unlock();
3896
3897         *cookie = (unsigned long) skb;
3898         return 0;
3899 }
3900
3901 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3902                                      struct wireless_dev *wdev,
3903                                      struct cfg80211_chan_def *chandef)
3904 {
3905         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3906         struct ieee80211_local *local = wiphy_priv(wiphy);
3907         struct ieee80211_chanctx_conf *chanctx_conf;
3908         int ret = -ENODATA;
3909
3910         rcu_read_lock();
3911         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3912         if (chanctx_conf) {
3913                 *chandef = chanctx_conf->def;
3914                 ret = 0;
3915         } else if (local->open_count > 0 &&
3916                    local->open_count == local->monitors &&
3917                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3918                 if (local->use_chanctx)
3919                         *chandef = local->monitor_chandef;
3920                 else
3921                         *chandef = local->_oper_chandef;
3922                 ret = 0;
3923         }
3924         rcu_read_unlock();
3925
3926         return ret;
3927 }
3928
3929 #ifdef CONFIG_PM
3930 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3931 {
3932         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3933 }
3934 #endif
3935
3936 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3937                                  struct net_device *dev,
3938                                  struct cfg80211_qos_map *qos_map)
3939 {
3940         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3941         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3942
3943         if (qos_map) {
3944                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3945                 if (!new_qos_map)
3946                         return -ENOMEM;
3947                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3948         } else {
3949                 /* A NULL qos_map was passed to disable QoS mapping */
3950                 new_qos_map = NULL;
3951         }
3952
3953         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3954         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3955         if (old_qos_map)
3956                 kfree_rcu(old_qos_map, rcu_head);
3957
3958         return 0;
3959 }
3960
3961 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3962                                       struct net_device *dev,
3963                                       struct cfg80211_chan_def *chandef)
3964 {
3965         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3966         int ret;
3967         u32 changed = 0;
3968
3969         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3970         if (ret == 0)
3971                 ieee80211_bss_info_change_notify(sdata, changed);
3972
3973         return ret;
3974 }
3975
3976 const struct cfg80211_ops mac80211_config_ops = {
3977         .add_virtual_intf = ieee80211_add_iface,
3978         .del_virtual_intf = ieee80211_del_iface,
3979         .change_virtual_intf = ieee80211_change_iface,
3980         .start_p2p_device = ieee80211_start_p2p_device,
3981         .stop_p2p_device = ieee80211_stop_p2p_device,
3982         .add_key = ieee80211_add_key,
3983         .del_key = ieee80211_del_key,
3984         .get_key = ieee80211_get_key,
3985         .set_default_key = ieee80211_config_default_key,
3986         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3987         .start_ap = ieee80211_start_ap,
3988         .change_beacon = ieee80211_change_beacon,
3989         .stop_ap = ieee80211_stop_ap,
3990         .add_station = ieee80211_add_station,
3991         .del_station = ieee80211_del_station,
3992         .change_station = ieee80211_change_station,
3993         .get_station = ieee80211_get_station,
3994         .dump_station = ieee80211_dump_station,
3995         .dump_survey = ieee80211_dump_survey,
3996 #ifdef CONFIG_MAC80211_MESH
3997         .add_mpath = ieee80211_add_mpath,
3998         .del_mpath = ieee80211_del_mpath,
3999         .change_mpath = ieee80211_change_mpath,
4000         .get_mpath = ieee80211_get_mpath,
4001         .dump_mpath = ieee80211_dump_mpath,
4002         .update_mesh_config = ieee80211_update_mesh_config,
4003         .get_mesh_config = ieee80211_get_mesh_config,
4004         .join_mesh = ieee80211_join_mesh,
4005         .leave_mesh = ieee80211_leave_mesh,
4006 #endif
4007         .change_bss = ieee80211_change_bss,
4008         .set_txq_params = ieee80211_set_txq_params,
4009         .set_monitor_channel = ieee80211_set_monitor_channel,
4010         .suspend = ieee80211_suspend,
4011         .resume = ieee80211_resume,
4012         .scan = ieee80211_scan,
4013         .sched_scan_start = ieee80211_sched_scan_start,
4014         .sched_scan_stop = ieee80211_sched_scan_stop,
4015         .auth = ieee80211_auth,
4016         .assoc = ieee80211_assoc,
4017         .deauth = ieee80211_deauth,
4018         .disassoc = ieee80211_disassoc,
4019         .join_ibss = ieee80211_join_ibss,
4020         .leave_ibss = ieee80211_leave_ibss,
4021         .set_mcast_rate = ieee80211_set_mcast_rate,
4022         .set_wiphy_params = ieee80211_set_wiphy_params,
4023         .set_tx_power = ieee80211_set_tx_power,
4024         .get_tx_power = ieee80211_get_tx_power,
4025         .set_wds_peer = ieee80211_set_wds_peer,
4026         .rfkill_poll = ieee80211_rfkill_poll,
4027         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4028         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4029         .set_power_mgmt = ieee80211_set_power_mgmt,
4030         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4031         .remain_on_channel = ieee80211_remain_on_channel,
4032         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4033         .mgmt_tx = ieee80211_mgmt_tx,
4034         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4035         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4036         .mgmt_frame_register = ieee80211_mgmt_frame_register,
4037         .set_antenna = ieee80211_set_antenna,
4038         .get_antenna = ieee80211_get_antenna,
4039         .set_ringparam = ieee80211_set_ringparam,
4040         .get_ringparam = ieee80211_get_ringparam,
4041         .set_rekey_data = ieee80211_set_rekey_data,
4042         .tdls_oper = ieee80211_tdls_oper,
4043         .tdls_mgmt = ieee80211_tdls_mgmt,
4044         .probe_client = ieee80211_probe_client,
4045         .set_noack_map = ieee80211_set_noack_map,
4046 #ifdef CONFIG_PM
4047         .set_wakeup = ieee80211_set_wakeup,
4048 #endif
4049         .get_et_sset_count = ieee80211_get_et_sset_count,
4050         .get_et_stats = ieee80211_get_et_stats,
4051         .get_et_strings = ieee80211_get_et_strings,
4052         .get_channel = ieee80211_cfg_get_channel,
4053         .start_radar_detection = ieee80211_start_radar_detection,
4054         .channel_switch = ieee80211_channel_switch,
4055         .set_qos_map = ieee80211_set_qos_map,
4056         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4057 };