net/mac80211/cfg.c

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