net/mac80211/cfg.c

   1 /*
   2  * mac80211 configuration hooks for cfg80211
   3  *
   4  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   5  * Copyright 2013-2014  Intel Mobile Communications GmbH
   6  *
   7  * This file is GPLv2 as found in COPYING.
   8  */
   9
  10 #include <linux/ieee80211.h>
  11 #include <linux/nl80211.h>
  12 #include <linux/rtnetlink.h>
  13 #include <linux/slab.h>
  14 #include <net/net_namespace.h>
  15 #include <linux/rcupdate.h>
  16 #include <linux/if_ether.h>
  17 #include <net/cfg80211.h>
  18 #include "ieee80211_i.h"
  19 #include "driver-ops.h"
  20 #include "cfg.h"
  21 #include "rate.h"
  22 #include "mesh.h"
  23
  24 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
  25                                                 const char *name,
  26                                                 enum nl80211_iftype type,
  27                                                 u32 *flags,
  28                                                 struct vif_params *params)
  29 {
  30         struct ieee80211_local *local = wiphy_priv(wiphy);
  31         struct wireless_dev *wdev;
  32         struct ieee80211_sub_if_data *sdata;
  33         int err;
  34
  35         err = ieee80211_if_add(local, name, &wdev, type, params);
  36         if (err)
  37                 return ERR_PTR(err);
  38
  39         if (type == NL80211_IFTYPE_MONITOR && flags) {
  40                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
  41                 sdata->u.mntr_flags = *flags;
  42         }
  43
  44         return wdev;
  45 }
  46
  47 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
  48 {
  49         ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
  50
  51         return 0;
  52 }
  53
  54 static int ieee80211_change_iface(struct wiphy *wiphy,
  55                                   struct net_device *dev,
  56                                   enum nl80211_iftype type, u32 *flags,
  57                                   struct vif_params *params)
  58 {
  59         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  60         int ret;
  61
  62         ret = ieee80211_if_change_type(sdata, type);
  63         if (ret)
  64                 return ret;
  65
  66         if (type == NL80211_IFTYPE_AP_VLAN &&
  67             params && params->use_4addr == 0)
  68                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
  69         else if (type == NL80211_IFTYPE_STATION &&
  70                  params && params->use_4addr >= 0)
  71                 sdata->u.mgd.use_4addr = params->use_4addr;
  72
  73         if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
  74                 struct ieee80211_local *local = sdata->local;
  75
  76                 if (ieee80211_sdata_running(sdata)) {
  77                         u32 mask = MONITOR_FLAG_COOK_FRAMES |
  78                                    MONITOR_FLAG_ACTIVE;
  79
  80                         /*
  81                          * Prohibit MONITOR_FLAG_COOK_FRAMES and
  82                          * MONITOR_FLAG_ACTIVE to be changed while the
  83                          * interface is up.
  84                          * Else we would need to add a lot of cruft
  85                          * to update everything:
  86                          *      cooked_mntrs, monitor and all fif_* counters
  87                          *      reconfigure hardware
  88                          */
  89                         if ((*flags & mask) != (sdata->u.mntr_flags & mask))
  90                                 return -EBUSY;
  91
  92                         ieee80211_adjust_monitor_flags(sdata, -1);
  93                         sdata->u.mntr_flags = *flags;
  94                         ieee80211_adjust_monitor_flags(sdata, 1);
  95
  96                         ieee80211_configure_filter(local);
  97                 } else {
  98                         /*
  99                          * Because the interface is down, ieee80211_do_stop
 100                          * and ieee80211_do_open take care of "everything"
 101                          * mentioned in the comment above.
 102                          */
 103                         sdata->u.mntr_flags = *flags;
 104                 }
 105         }
 106
 107         return 0;
 108 }
 109
 110 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 111                                       struct wireless_dev *wdev)
 112 {
 113         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 114         int ret;
 115
 116         mutex_lock(&sdata->local->chanctx_mtx);
 117         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 118         mutex_unlock(&sdata->local->chanctx_mtx);
 119         if (ret < 0)
 120                 return ret;
 121
 122         return ieee80211_do_open(wdev, true);
 123 }
 124
 125 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 126                                       struct wireless_dev *wdev)
 127 {
 128         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 129 }
 130
 131 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 132                                   struct net_device *dev,
 133                                   u16 noack_map)
 134 {
 135         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 136
 137         sdata->noack_map = noack_map;
 138         return 0;
 139 }
 140
 141 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 142                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 143                              struct key_params *params)
 144 {
 145         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 146         struct ieee80211_local *local = sdata->local;
 147         struct sta_info *sta = NULL;
 148         const struct ieee80211_cipher_scheme *cs = NULL;
 149         struct ieee80211_key *key;
 150         int err;
 151
 152         if (!ieee80211_sdata_running(sdata))
 153                 return -ENETDOWN;
 154
 155         /* reject WEP and TKIP keys if WEP failed to initialize */
 156         switch (params->cipher) {
 157         case WLAN_CIPHER_SUITE_WEP40:
 158         case WLAN_CIPHER_SUITE_TKIP:
 159         case WLAN_CIPHER_SUITE_WEP104:
 160                 if (IS_ERR(local->wep_tx_tfm))
 161                         return -EINVAL;
 162                 break;
 163         case WLAN_CIPHER_SUITE_CCMP:
 164         case WLAN_CIPHER_SUITE_AES_CMAC:
 165         case WLAN_CIPHER_SUITE_GCMP:
 166                 break;
 167         default:
 168                 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
 169                 break;
 170         }
 171
 172         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 173                                   params->key, params->seq_len, params->seq,
 174                                   cs);
 175         if (IS_ERR(key))
 176                 return PTR_ERR(key);
 177
 178         if (pairwise)
 179                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 180
 181         mutex_lock(&local->sta_mtx);
 182
 183         if (mac_addr) {
 184                 if (ieee80211_vif_is_mesh(&sdata->vif))
 185                         sta = sta_info_get(sdata, mac_addr);
 186                 else
 187                         sta = sta_info_get_bss(sdata, mac_addr);
 188                 /*
 189                  * The ASSOC test makes sure the driver is ready to
 190                  * receive the key. When wpa_supplicant has roamed
 191                  * using FT, it attempts to set the key before
 192                  * association has completed, this rejects that attempt
 193                  * so it will set the key again after assocation.
 194                  *
 195                  * TODO: accept the key if we have a station entry and
 196                  *       add it to the device after the station.
 197                  */
 198                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 199                         ieee80211_key_free_unused(key);
 200                         err = -ENOENT;
 201                         goto out_unlock;
 202                 }
 203         }
 204
 205         switch (sdata->vif.type) {
 206         case NL80211_IFTYPE_STATION:
 207                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 208                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 209                 break;
 210         case NL80211_IFTYPE_AP:
 211         case NL80211_IFTYPE_AP_VLAN:
 212                 /* Keys without a station are used for TX only */
 213                 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
 214                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 215                 break;
 216         case NL80211_IFTYPE_ADHOC:
 217                 /* no MFP (yet) */
 218                 break;
 219         case NL80211_IFTYPE_MESH_POINT:
 220 #ifdef CONFIG_MAC80211_MESH
 221                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 222                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 223                 break;
 224 #endif
 225         case NL80211_IFTYPE_WDS:
 226         case NL80211_IFTYPE_MONITOR:
 227         case NL80211_IFTYPE_P2P_DEVICE:
 228         case NL80211_IFTYPE_UNSPECIFIED:
 229         case NUM_NL80211_IFTYPES:
 230         case NL80211_IFTYPE_P2P_CLIENT:
 231         case NL80211_IFTYPE_P2P_GO:
 232                 /* shouldn't happen */
 233                 WARN_ON_ONCE(1);
 234                 break;
 235         }
 236
 237         if (sta)
 238                 sta->cipher_scheme = cs;
 239
 240         err = ieee80211_key_link(key, sdata, sta);
 241
 242  out_unlock:
 243         mutex_unlock(&local->sta_mtx);
 244
 245         return err;
 246 }
 247
 248 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 249                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 250 {
 251         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 252         struct ieee80211_local *local = sdata->local;
 253         struct sta_info *sta;
 254         struct ieee80211_key *key = NULL;
 255         int ret;
 256
 257         mutex_lock(&local->sta_mtx);
 258         mutex_lock(&local->key_mtx);
 259
 260         if (mac_addr) {
 261                 ret = -ENOENT;
 262
 263                 sta = sta_info_get_bss(sdata, mac_addr);
 264                 if (!sta)
 265                         goto out_unlock;
 266
 267                 if (pairwise)
 268                         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 269                 else
 270                         key = key_mtx_dereference(local, sta->gtk[key_idx]);
 271         } else
 272                 key = key_mtx_dereference(local, sdata->keys[key_idx]);
 273
 274         if (!key) {
 275                 ret = -ENOENT;
 276                 goto out_unlock;
 277         }
 278
 279         ieee80211_key_free(key, true);
 280
 281         ret = 0;
 282  out_unlock:
 283         mutex_unlock(&local->key_mtx);
 284         mutex_unlock(&local->sta_mtx);
 285
 286         return ret;
 287 }
 288
 289 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 290                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 291                              void *cookie,
 292                              void (*callback)(void *cookie,
 293                                               struct key_params *params))
 294 {
 295         struct ieee80211_sub_if_data *sdata;
 296         struct sta_info *sta = NULL;
 297         u8 seq[6] = {0};
 298         struct key_params params;
 299         struct ieee80211_key *key = NULL;
 300         u64 pn64;
 301         u32 iv32;
 302         u16 iv16;
 303         int err = -ENOENT;
 304
 305         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 306
 307         rcu_read_lock();
 308
 309         if (mac_addr) {
 310                 sta = sta_info_get_bss(sdata, mac_addr);
 311                 if (!sta)
 312                         goto out;
 313
 314                 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 315                         key = rcu_dereference(sta->ptk[key_idx]);
 316                 else if (!pairwise &&
 317                          key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
 318                         key = rcu_dereference(sta->gtk[key_idx]);
 319         } else
 320                 key = rcu_dereference(sdata->keys[key_idx]);
 321
 322         if (!key)
 323                 goto out;
 324
 325         memset(&params, 0, sizeof(params));
 326
 327         params.cipher = key->conf.cipher;
 328
 329         switch (key->conf.cipher) {
 330         case WLAN_CIPHER_SUITE_TKIP:
 331                 iv32 = key->u.tkip.tx.iv32;
 332                 iv16 = key->u.tkip.tx.iv16;
 333
 334                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 335                         drv_get_tkip_seq(sdata->local,
 336                                          key->conf.hw_key_idx,
 337                                          &iv32, &iv16);
 338
 339                 seq[0] = iv16 & 0xff;
 340                 seq[1] = (iv16 >> 8) & 0xff;
 341                 seq[2] = iv32 & 0xff;
 342                 seq[3] = (iv32 >> 8) & 0xff;
 343                 seq[4] = (iv32 >> 16) & 0xff;
 344                 seq[5] = (iv32 >> 24) & 0xff;
 345                 params.seq = seq;
 346                 params.seq_len = 6;
 347                 break;
 348         case WLAN_CIPHER_SUITE_CCMP:
 349                 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
 350                 seq[0] = pn64;
 351                 seq[1] = pn64 >> 8;
 352                 seq[2] = pn64 >> 16;
 353                 seq[3] = pn64 >> 24;
 354                 seq[4] = pn64 >> 32;
 355                 seq[5] = pn64 >> 40;
 356                 params.seq = seq;
 357                 params.seq_len = 6;
 358                 break;
 359         case WLAN_CIPHER_SUITE_AES_CMAC:
 360                 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
 361                 seq[0] = pn64;
 362                 seq[1] = pn64 >> 8;
 363                 seq[2] = pn64 >> 16;
 364                 seq[3] = pn64 >> 24;
 365                 seq[4] = pn64 >> 32;
 366                 seq[5] = pn64 >> 40;
 367                 params.seq = seq;
 368                 params.seq_len = 6;
 369                 break;
 370         }
 371
 372         params.key = key->conf.key;
 373         params.key_len = key->conf.keylen;
 374
 375         callback(cookie, &params);
 376         err = 0;
 377
 378  out:
 379         rcu_read_unlock();
 380         return err;
 381 }
 382
 383 static int ieee80211_config_default_key(struct wiphy *wiphy,
 384                                         struct net_device *dev,
 385                                         u8 key_idx, bool uni,
 386                                         bool multi)
 387 {
 388         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 389
 390         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 391
 392         return 0;
 393 }
 394
 395 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 396                                              struct net_device *dev,
 397                                              u8 key_idx)
 398 {
 399         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 400
 401         ieee80211_set_default_mgmt_key(sdata, key_idx);
 402
 403         return 0;
 404 }
 405
 406 void sta_set_rate_info_tx(struct sta_info *sta,
 407                           const struct ieee80211_tx_rate *rate,
 408                           struct rate_info *rinfo)
 409 {
 410         rinfo->flags = 0;
 411         if (rate->flags & IEEE80211_TX_RC_MCS) {
 412                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 413                 rinfo->mcs = rate->idx;
 414         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 415                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 416                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 417                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 418         } else {
 419                 struct ieee80211_supported_band *sband;
 420                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 421                 u16 brate;
 422
 423                 sband = sta->local->hw.wiphy->bands[
 424                                 ieee80211_get_sdata_band(sta->sdata)];
 425                 brate = sband->bitrates[rate->idx].bitrate;
 426                 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 427         }
 428         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 429                 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 430         if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 431                 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 432         if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 433                 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 434         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 435                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 436 }
 437
 438 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
 439 {
 440         rinfo->flags = 0;
 441
 442         if (sta->last_rx_rate_flag & RX_FLAG_HT) {
 443                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 444                 rinfo->mcs = sta->last_rx_rate_idx;
 445         } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
 446                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 447                 rinfo->nss = sta->last_rx_rate_vht_nss;
 448                 rinfo->mcs = sta->last_rx_rate_idx;
 449         } else {
 450                 struct ieee80211_supported_band *sband;
 451                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 452                 u16 brate;
 453
 454                 sband = sta->local->hw.wiphy->bands[
 455                                 ieee80211_get_sdata_band(sta->sdata)];
 456                 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
 457                 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 458         }
 459
 460         if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
 461                 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 462         if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
 463                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 464         if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
 465                 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
 466         if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80P80MHZ)
 467                 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
 468         if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
 469                 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
 470 }
 471
 472 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 473                                   int idx, u8 *mac, struct station_info *sinfo)
 474 {
 475         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 476         struct ieee80211_local *local = sdata->local;
 477         struct sta_info *sta;
 478         int ret = -ENOENT;
 479
 480         mutex_lock(&local->sta_mtx);
 481
 482         sta = sta_info_get_by_idx(sdata, idx);
 483         if (sta) {
 484                 ret = 0;
 485                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 486                 sta_set_sinfo(sta, sinfo);
 487         }
 488
 489         mutex_unlock(&local->sta_mtx);
 490
 491         return ret;
 492 }
 493
 494 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 495                                  int idx, struct survey_info *survey)
 496 {
 497         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 498
 499         return drv_get_survey(local, idx, survey);
 500 }
 501
 502 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 503                                  const u8 *mac, struct station_info *sinfo)
 504 {
 505         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 506         struct ieee80211_local *local = sdata->local;
 507         struct sta_info *sta;
 508         int ret = -ENOENT;
 509
 510         mutex_lock(&local->sta_mtx);
 511
 512         sta = sta_info_get_bss(sdata, mac);
 513         if (sta) {
 514                 ret = 0;
 515                 sta_set_sinfo(sta, sinfo);
 516         }
 517
 518         mutex_unlock(&local->sta_mtx);
 519
 520         return ret;
 521 }
 522
 523 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 524                                          struct cfg80211_chan_def *chandef)
 525 {
 526         struct ieee80211_local *local = wiphy_priv(wiphy);
 527         struct ieee80211_sub_if_data *sdata;
 528         int ret = 0;
 529
 530         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 531                 return 0;
 532
 533         mutex_lock(&local->mtx);
 534         mutex_lock(&local->iflist_mtx);
 535         if (local->use_chanctx) {
 536                 sdata = rcu_dereference_protected(
 537                                 local->monitor_sdata,
 538                                 lockdep_is_held(&local->iflist_mtx));
 539                 if (sdata) {
 540                         ieee80211_vif_release_channel(sdata);
 541                         ret = ieee80211_vif_use_channel(sdata, chandef,
 542                                         IEEE80211_CHANCTX_EXCLUSIVE);
 543                 }
 544         } else if (local->open_count == local->monitors) {
 545                 local->_oper_chandef = *chandef;
 546                 ieee80211_hw_config(local, 0);
 547         }
 548
 549         if (ret == 0)
 550                 local->monitor_chandef = *chandef;
 551         mutex_unlock(&local->iflist_mtx);
 552         mutex_unlock(&local->mtx);
 553
 554         return ret;
 555 }
 556
 557 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 558                                     const u8 *resp, size_t resp_len,
 559                                     const struct ieee80211_csa_settings *csa)
 560 {
 561         struct probe_resp *new, *old;
 562
 563         if (!resp || !resp_len)
 564                 return 1;
 565
 566         old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 567
 568         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 569         if (!new)
 570                 return -ENOMEM;
 571
 572         new->len = resp_len;
 573         memcpy(new->data, resp, resp_len);
 574
 575         if (csa)
 576                 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
 577                        csa->n_counter_offsets_presp *
 578                        sizeof(new->csa_counter_offsets[0]));
 579
 580         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 581         if (old)
 582                 kfree_rcu(old, rcu_head);
 583
 584         return 0;
 585 }
 586
 587 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 588                                    struct cfg80211_beacon_data *params,
 589                                    const struct ieee80211_csa_settings *csa)
 590 {
 591         struct beacon_data *new, *old;
 592         int new_head_len, new_tail_len;
 593         int size, err;
 594         u32 changed = BSS_CHANGED_BEACON;
 595
 596         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 597
 598
 599         /* Need to have a beacon head if we don't have one yet */
 600         if (!params->head && !old)
 601                 return -EINVAL;
 602
 603         /* new or old head? */
 604         if (params->head)
 605                 new_head_len = params->head_len;
 606         else
 607                 new_head_len = old->head_len;
 608
 609         /* new or old tail? */
 610         if (params->tail || !old)
 611                 /* params->tail_len will be zero for !params->tail */
 612                 new_tail_len = params->tail_len;
 613         else
 614                 new_tail_len = old->tail_len;
 615
 616         size = sizeof(*new) + new_head_len + new_tail_len;
 617
 618         new = kzalloc(size, GFP_KERNEL);
 619         if (!new)
 620                 return -ENOMEM;
 621
 622         /* start filling the new info now */
 623
 624         /*
 625          * pointers go into the block we allocated,
 626          * memory is | beacon_data | head | tail |
 627          */
 628         new->head = ((u8 *) new) + sizeof(*new);
 629         new->tail = new->head + new_head_len;
 630         new->head_len = new_head_len;
 631         new->tail_len = new_tail_len;
 632
 633         if (csa) {
 634                 new->csa_current_counter = csa->count;
 635                 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
 636                        csa->n_counter_offsets_beacon *
 637                        sizeof(new->csa_counter_offsets[0]));
 638         }
 639
 640         /* copy in head */
 641         if (params->head)
 642                 memcpy(new->head, params->head, new_head_len);
 643         else
 644                 memcpy(new->head, old->head, new_head_len);
 645
 646         /* copy in optional tail */
 647         if (params->tail)
 648                 memcpy(new->tail, params->tail, new_tail_len);
 649         else
 650                 if (old)
 651                         memcpy(new->tail, old->tail, new_tail_len);
 652
 653         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
 654                                        params->probe_resp_len, csa);
 655         if (err < 0)
 656                 return err;
 657         if (err == 0)
 658                 changed |= BSS_CHANGED_AP_PROBE_RESP;
 659
 660         rcu_assign_pointer(sdata->u.ap.beacon, new);
 661
 662         if (old)
 663                 kfree_rcu(old, rcu_head);
 664
 665         return changed;
 666 }
 667
 668 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 669                               struct cfg80211_ap_settings *params)
 670 {
 671         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 672         struct ieee80211_local *local = sdata->local;
 673         struct beacon_data *old;
 674         struct ieee80211_sub_if_data *vlan;
 675         u32 changed = BSS_CHANGED_BEACON_INT |
 676                       BSS_CHANGED_BEACON_ENABLED |
 677                       BSS_CHANGED_BEACON |
 678                       BSS_CHANGED_SSID |
 679                       BSS_CHANGED_P2P_PS;
 680         int err;
 681
 682         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 683         if (old)
 684                 return -EALREADY;
 685
 686         /* TODO: make hostapd tell us what it wants */
 687         sdata->smps_mode = IEEE80211_SMPS_OFF;
 688         sdata->needed_rx_chains = sdata->local->rx_chains;
 689
 690         mutex_lock(&local->mtx);
 691         err = ieee80211_vif_use_channel(sdata, &params->chandef,
 692                                         IEEE80211_CHANCTX_SHARED);
 693         if (!err)
 694                 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
 695         mutex_unlock(&local->mtx);
 696         if (err)
 697                 return err;
 698
 699         /*
 700          * Apply control port protocol, this allows us to
 701          * not encrypt dynamic WEP control frames.
 702          */
 703         sdata->control_port_protocol = params->crypto.control_port_ethertype;
 704         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
 705         sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
 706                                                         &params->crypto,
 707                                                         sdata->vif.type);
 708
 709         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
 710                 vlan->control_port_protocol =
 711                         params->crypto.control_port_ethertype;
 712                 vlan->control_port_no_encrypt =
 713                         params->crypto.control_port_no_encrypt;
 714                 vlan->encrypt_headroom =
 715                         ieee80211_cs_headroom(sdata->local,
 716                                               &params->crypto,
 717                                               vlan->vif.type);
 718         }
 719
 720         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
 721         sdata->vif.bss_conf.dtim_period = params->dtim_period;
 722         sdata->vif.bss_conf.enable_beacon = true;
 723
 724         sdata->vif.bss_conf.ssid_len = params->ssid_len;
 725         if (params->ssid_len)
 726                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
 727                        params->ssid_len);
 728         sdata->vif.bss_conf.hidden_ssid =
 729                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
 730
 731         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
 732                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
 733         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
 734                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
 735         if (params->p2p_opp_ps)
 736                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
 737                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
 738
 739         err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
 740         if (err < 0) {
 741                 ieee80211_vif_release_channel(sdata);
 742                 return err;
 743         }
 744         changed |= err;
 745
 746         err = drv_start_ap(sdata->local, sdata);
 747         if (err) {
 748                 old = sdata_dereference(sdata->u.ap.beacon, sdata);
 749
 750                 if (old)
 751                         kfree_rcu(old, rcu_head);
 752                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
 753                 ieee80211_vif_release_channel(sdata);
 754                 return err;
 755         }
 756
 757         ieee80211_recalc_dtim(local, sdata);
 758         ieee80211_bss_info_change_notify(sdata, changed);
 759
 760         netif_carrier_on(dev);
 761         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
 762                 netif_carrier_on(vlan->dev);
 763
 764         return 0;
 765 }
 766
 767 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
 768                                    struct cfg80211_beacon_data *params)
 769 {
 770         struct ieee80211_sub_if_data *sdata;
 771         struct beacon_data *old;
 772         int err;
 773
 774         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 775         sdata_assert_lock(sdata);
 776
 777         /* don't allow changing the beacon while CSA is in place - offset
 778          * of channel switch counter may change
 779          */
 780         if (sdata->vif.csa_active)
 781                 return -EBUSY;
 782
 783         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 784         if (!old)
 785                 return -ENOENT;
 786
 787         err = ieee80211_assign_beacon(sdata, params, NULL);
 788         if (err < 0)
 789                 return err;
 790         ieee80211_bss_info_change_notify(sdata, err);
 791         return 0;
 792 }
 793
 794 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 795 {
 796         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 797         struct ieee80211_sub_if_data *vlan;
 798         struct ieee80211_local *local = sdata->local;
 799         struct beacon_data *old_beacon;
 800         struct probe_resp *old_probe_resp;
 801         struct cfg80211_chan_def chandef;
 802
 803         sdata_assert_lock(sdata);
 804
 805         old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
 806         if (!old_beacon)
 807                 return -ENOENT;
 808         old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 809
 810         /* abort any running channel switch */
 811         mutex_lock(&local->mtx);
 812         sdata->vif.csa_active = false;
 813         if (sdata->csa_block_tx) {
 814                 ieee80211_wake_vif_queues(local, sdata,
 815                                           IEEE80211_QUEUE_STOP_REASON_CSA);
 816                 sdata->csa_block_tx = false;
 817         }
 818
 819         mutex_unlock(&local->mtx);
 820
 821         kfree(sdata->u.ap.next_beacon);
 822         sdata->u.ap.next_beacon = NULL;
 823
 824         /* turn off carrier for this interface and dependent VLANs */
 825         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
 826                 netif_carrier_off(vlan->dev);
 827         netif_carrier_off(dev);
 828
 829         /* remove beacon and probe response */
 830         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
 831         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
 832         kfree_rcu(old_beacon, rcu_head);
 833         if (old_probe_resp)
 834                 kfree_rcu(old_probe_resp, rcu_head);
 835         sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
 836
 837         __sta_info_flush(sdata, true);
 838         ieee80211_free_keys(sdata, true);
 839
 840         sdata->vif.bss_conf.enable_beacon = false;
 841         sdata->vif.bss_conf.ssid_len = 0;
 842         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
 843         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 844
 845         if (sdata->wdev.cac_started) {
 846                 chandef = sdata->vif.bss_conf.chandef;
 847                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
 848                 cfg80211_cac_event(sdata->dev, &chandef,
 849                                    NL80211_RADAR_CAC_ABORTED,
 850                                    GFP_KERNEL);
 851         }
 852
 853         drv_stop_ap(sdata->local, sdata);
 854
 855         /* free all potentially still buffered bcast frames */
 856         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
 857         skb_queue_purge(&sdata->u.ap.ps.bc_buf);
 858
 859         mutex_lock(&local->mtx);
 860         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
 861         ieee80211_vif_release_channel(sdata);
 862         mutex_unlock(&local->mtx);
 863
 864         return 0;
 865 }
 866
 867 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 868 struct iapp_layer2_update {
 869         u8 da[ETH_ALEN];        /* broadcast */
 870         u8 sa[ETH_ALEN];        /* STA addr */
 871         __be16 len;             /* 6 */
 872         u8 dsap;                /* 0 */
 873         u8 ssap;                /* 0 */
 874         u8 control;
 875         u8 xid_info[3];
 876 } __packed;
 877
 878 static void ieee80211_send_layer2_update(struct sta_info *sta)
 879 {
 880         struct iapp_layer2_update *msg;
 881         struct sk_buff *skb;
 882
 883         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 884          * bridge devices */
 885
 886         skb = dev_alloc_skb(sizeof(*msg));
 887         if (!skb)
 888                 return;
 889         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 890
 891         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 892          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 893
 894         eth_broadcast_addr(msg->da);
 895         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 896         msg->len = htons(6);
 897         msg->dsap = 0;
 898         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 899         msg->control = 0xaf;    /* XID response lsb.1111F101.
 900                                  * F=0 (no poll command; unsolicited frame) */
 901         msg->xid_info[0] = 0x81;        /* XID format identifier */
 902         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 903         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 904
 905         skb->dev = sta->sdata->dev;
 906         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 907         memset(skb->cb, 0, sizeof(skb->cb));
 908         netif_rx_ni(skb);
 909 }
 910
 911 static int sta_apply_auth_flags(struct ieee80211_local *local,
 912                                 struct sta_info *sta,
 913                                 u32 mask, u32 set)
 914 {
 915         int ret;
 916
 917         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
 918             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
 919             !test_sta_flag(sta, WLAN_STA_AUTH)) {
 920                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
 921                 if (ret)
 922                         return ret;
 923         }
 924
 925         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
 926             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
 927             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 928                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
 929                 if (ret)
 930                         return ret;
 931         }
 932
 933         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 934                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 935                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
 936                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
 937                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
 938                 else
 939                         ret = 0;
 940                 if (ret)
 941                         return ret;
 942         }
 943
 944         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
 945             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
 946             test_sta_flag(sta, WLAN_STA_ASSOC)) {
 947                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
 948                 if (ret)
 949                         return ret;
 950         }
 951
 952         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
 953             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
 954             test_sta_flag(sta, WLAN_STA_AUTH)) {
 955                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
 956                 if (ret)
 957                         return ret;
 958         }
 959
 960         return 0;
 961 }
 962
 963 static int sta_apply_parameters(struct ieee80211_local *local,
 964                                 struct sta_info *sta,
 965                                 struct station_parameters *params)
 966 {
 967         int ret = 0;
 968         struct ieee80211_supported_band *sband;
 969         struct ieee80211_sub_if_data *sdata = sta->sdata;
 970         enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
 971         u32 mask, set;
 972
 973         sband = local->hw.wiphy->bands[band];
 974
 975         mask = params->sta_flags_mask;
 976         set = params->sta_flags_set;
 977
 978         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 979                 /*
 980                  * In mesh mode, ASSOCIATED isn't part of the nl80211
 981                  * API but must follow AUTHENTICATED for driver state.
 982                  */
 983                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
 984                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
 985                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
 986                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
 987         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
 988                 /*
 989                  * TDLS -- everything follows authorized, but
 990                  * only becoming authorized is possible, not
 991                  * going back
 992                  */
 993                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 994                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
 995                                BIT(NL80211_STA_FLAG_ASSOCIATED);
 996                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
 997                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
 998                 }
 999         }
1000
1001         /* auth flags will be set later for TDLS stations */
1002         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1003                 ret = sta_apply_auth_flags(local, sta, mask, set);
1004                 if (ret)
1005                         return ret;
1006         }
1007
1008         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1009                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1010                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1011                 else
1012                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1013         }
1014
1015         if (mask & BIT(NL80211_STA_FLAG_WME))
1016                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1017
1018         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1019                 if (set & BIT(NL80211_STA_FLAG_MFP))
1020                         set_sta_flag(sta, WLAN_STA_MFP);
1021                 else
1022                         clear_sta_flag(sta, WLAN_STA_MFP);
1023         }
1024
1025         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1026                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1027                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1028                 else
1029                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1030         }
1031
1032         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1033                 sta->sta.uapsd_queues = params->uapsd_queues;
1034                 sta->sta.max_sp = params->max_sp;
1035         }
1036
1037         /*
1038          * cfg80211 validates this (1-2007) and allows setting the AID
1039          * only when creating a new station entry
1040          */
1041         if (params->aid)
1042                 sta->sta.aid = params->aid;
1043
1044         /*
1045          * Some of the following updates would be racy if called on an
1046          * existing station, via ieee80211_change_station(). However,
1047          * all such changes are rejected by cfg80211 except for updates
1048          * changing the supported rates on an existing but not yet used
1049          * TDLS peer.
1050          */
1051
1052         if (params->listen_interval >= 0)
1053                 sta->listen_interval = params->listen_interval;
1054
1055         if (params->supported_rates) {
1056                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1057                                          sband, params->supported_rates,
1058                                          params->supported_rates_len,
1059                                          &sta->sta.supp_rates[band]);
1060         }
1061
1062         if (params->ht_capa)
1063                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1064                                                   params->ht_capa, sta);
1065
1066         if (params->vht_capa)
1067                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1068                                                     params->vht_capa, sta);
1069
1070         if (params->opmode_notif_used) {
1071                 /* returned value is only needed for rc update, but the
1072                  * rc isn't initialized here yet, so ignore it
1073                  */
1074                 __ieee80211_vht_handle_opmode(sdata, sta,
1075                                               params->opmode_notif,
1076                                               band, false);
1077         }
1078
1079         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1080 #ifdef CONFIG_MAC80211_MESH
1081                 u32 changed = 0;
1082
1083                 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1084                         switch (params->plink_state) {
1085                         case NL80211_PLINK_ESTAB:
1086                                 if (sta->plink_state != NL80211_PLINK_ESTAB)
1087                                         changed = mesh_plink_inc_estab_count(
1088                                                         sdata);
1089                                 sta->plink_state = params->plink_state;
1090
1091                                 ieee80211_mps_sta_status_update(sta);
1092                                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1093                                               sdata->u.mesh.mshcfg.power_mode);
1094                                 break;
1095                         case NL80211_PLINK_LISTEN:
1096                         case NL80211_PLINK_BLOCKED:
1097                         case NL80211_PLINK_OPN_SNT:
1098                         case NL80211_PLINK_OPN_RCVD:
1099                         case NL80211_PLINK_CNF_RCVD:
1100                         case NL80211_PLINK_HOLDING:
1101                                 if (sta->plink_state == NL80211_PLINK_ESTAB)
1102                                         changed = mesh_plink_dec_estab_count(
1103                                                         sdata);
1104                                 sta->plink_state = params->plink_state;
1105
1106                                 ieee80211_mps_sta_status_update(sta);
1107                                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1108                                                 NL80211_MESH_POWER_UNKNOWN);
1109                                 break;
1110                         default:
1111                                 /*  nothing  */
1112                                 break;
1113                         }
1114                 }
1115
1116                 switch (params->plink_action) {
1117                 case NL80211_PLINK_ACTION_NO_ACTION:
1118                         /* nothing */
1119                         break;
1120                 case NL80211_PLINK_ACTION_OPEN:
1121                         changed |= mesh_plink_open(sta);
1122                         break;
1123                 case NL80211_PLINK_ACTION_BLOCK:
1124                         changed |= mesh_plink_block(sta);
1125                         break;
1126                 }
1127
1128                 if (params->local_pm)
1129                         changed |=
1130                               ieee80211_mps_set_sta_local_pm(sta,
1131                                                              params->local_pm);
1132                 ieee80211_mbss_info_change_notify(sdata, changed);
1133 #endif
1134         }
1135
1136         /* set the STA state after all sta info from usermode has been set */
1137         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1138                 ret = sta_apply_auth_flags(local, sta, mask, set);
1139                 if (ret)
1140                         return ret;
1141         }
1142
1143         return 0;
1144 }
1145
1146 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1147                                  const u8 *mac,
1148                                  struct station_parameters *params)
1149 {
1150         struct ieee80211_local *local = wiphy_priv(wiphy);
1151         struct sta_info *sta;
1152         struct ieee80211_sub_if_data *sdata;
1153         int err;
1154         int layer2_update;
1155
1156         if (params->vlan) {
1157                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1158
1159                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1160                     sdata->vif.type != NL80211_IFTYPE_AP)
1161                         return -EINVAL;
1162         } else
1163                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1164
1165         if (ether_addr_equal(mac, sdata->vif.addr))
1166                 return -EINVAL;
1167
1168         if (is_multicast_ether_addr(mac))
1169                 return -EINVAL;
1170
1171         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1172         if (!sta)
1173                 return -ENOMEM;
1174
1175         /*
1176          * defaults -- if userspace wants something else we'll
1177          * change it accordingly in sta_apply_parameters()
1178          */
1179         if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1180                 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1181                 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1182         } else {
1183                 sta->sta.tdls = true;
1184         }
1185
1186         err = sta_apply_parameters(local, sta, params);
1187         if (err) {
1188                 sta_info_free(local, sta);
1189                 return err;
1190         }
1191
1192         /*
1193          * for TDLS, rate control should be initialized only when
1194          * rates are known and station is marked authorized
1195          */
1196         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1197                 rate_control_rate_init(sta);
1198
1199         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1200                 sdata->vif.type == NL80211_IFTYPE_AP;
1201
1202         err = sta_info_insert_rcu(sta);
1203         if (err) {
1204                 rcu_read_unlock();
1205                 return err;
1206         }
1207
1208         if (layer2_update)
1209                 ieee80211_send_layer2_update(sta);
1210
1211         rcu_read_unlock();
1212
1213         return 0;
1214 }
1215
1216 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1217                                  const u8 *mac)
1218 {
1219         struct ieee80211_sub_if_data *sdata;
1220
1221         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1222
1223         if (mac)
1224                 return sta_info_destroy_addr_bss(sdata, mac);
1225
1226         sta_info_flush(sdata);
1227         return 0;
1228 }
1229
1230 static int ieee80211_change_station(struct wiphy *wiphy,
1231                                     struct net_device *dev, const u8 *mac,
1232                                     struct station_parameters *params)
1233 {
1234         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1235         struct ieee80211_local *local = wiphy_priv(wiphy);
1236         struct sta_info *sta;
1237         struct ieee80211_sub_if_data *vlansdata;
1238         enum cfg80211_station_type statype;
1239         int err;
1240
1241         mutex_lock(&local->sta_mtx);
1242
1243         sta = sta_info_get_bss(sdata, mac);
1244         if (!sta) {
1245                 err = -ENOENT;
1246                 goto out_err;
1247         }
1248
1249         switch (sdata->vif.type) {
1250         case NL80211_IFTYPE_MESH_POINT:
1251                 if (sdata->u.mesh.user_mpm)
1252                         statype = CFG80211_STA_MESH_PEER_USER;
1253                 else
1254                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1255                 break;
1256         case NL80211_IFTYPE_ADHOC:
1257                 statype = CFG80211_STA_IBSS;
1258                 break;
1259         case NL80211_IFTYPE_STATION:
1260                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1261                         statype = CFG80211_STA_AP_STA;
1262                         break;
1263                 }
1264                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1265                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1266                 else
1267                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1268                 break;
1269         case NL80211_IFTYPE_AP:
1270         case NL80211_IFTYPE_AP_VLAN:
1271                 statype = CFG80211_STA_AP_CLIENT;
1272                 break;
1273         default:
1274                 err = -EOPNOTSUPP;
1275                 goto out_err;
1276         }
1277
1278         err = cfg80211_check_station_change(wiphy, params, statype);
1279         if (err)
1280                 goto out_err;
1281
1282         if (params->vlan && params->vlan != sta->sdata->dev) {
1283                 bool prev_4addr = false;
1284                 bool new_4addr = false;
1285
1286                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1287
1288                 if (params->vlan->ieee80211_ptr->use_4addr) {
1289                         if (vlansdata->u.vlan.sta) {
1290                                 err = -EBUSY;
1291                                 goto out_err;
1292                         }
1293
1294                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1295                         new_4addr = true;
1296                 }
1297
1298                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1299                     sta->sdata->u.vlan.sta) {
1300                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1301                         prev_4addr = true;
1302                 }
1303
1304                 sta->sdata = vlansdata;
1305
1306                 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1307                     prev_4addr != new_4addr) {
1308                         if (new_4addr)
1309                                 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1310                         else
1311                                 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1312                 }
1313
1314                 ieee80211_send_layer2_update(sta);
1315         }
1316
1317         err = sta_apply_parameters(local, sta, params);
1318         if (err)
1319                 goto out_err;
1320
1321         /* When peer becomes authorized, init rate control as well */
1322         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1323             test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1324                 rate_control_rate_init(sta);
1325
1326         mutex_unlock(&local->sta_mtx);
1327
1328         if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1329              sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1330             sta->known_smps_mode != sta->sdata->bss->req_smps &&
1331             test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1332             sta_info_tx_streams(sta) != 1) {
1333                 ht_dbg(sta->sdata,
1334                        "%pM just authorized and MIMO capable - update SMPS\n",
1335                        sta->sta.addr);
1336                 ieee80211_send_smps_action(sta->sdata,
1337                         sta->sdata->bss->req_smps,
1338                         sta->sta.addr,
1339                         sta->sdata->vif.bss_conf.bssid);
1340         }
1341
1342         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1343             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1344                 ieee80211_recalc_ps(local, -1);
1345                 ieee80211_recalc_ps_vif(sdata);
1346         }
1347
1348         return 0;
1349 out_err:
1350         mutex_unlock(&local->sta_mtx);
1351         return err;
1352 }
1353
1354 #ifdef CONFIG_MAC80211_MESH
1355 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1356                                const u8 *dst, const u8 *next_hop)
1357 {
1358         struct ieee80211_sub_if_data *sdata;
1359         struct mesh_path *mpath;
1360         struct sta_info *sta;
1361
1362         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1363
1364         rcu_read_lock();
1365         sta = sta_info_get(sdata, next_hop);
1366         if (!sta) {
1367                 rcu_read_unlock();
1368                 return -ENOENT;
1369         }
1370
1371         mpath = mesh_path_add(sdata, dst);
1372         if (IS_ERR(mpath)) {
1373                 rcu_read_unlock();
1374                 return PTR_ERR(mpath);
1375         }
1376
1377         mesh_path_fix_nexthop(mpath, sta);
1378
1379         rcu_read_unlock();
1380         return 0;
1381 }
1382
1383 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1384                                const u8 *dst)
1385 {
1386         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1387
1388         if (dst)
1389                 return mesh_path_del(sdata, dst);
1390
1391         mesh_path_flush_by_iface(sdata);
1392         return 0;
1393 }
1394
1395 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1396                                   const u8 *dst, const u8 *next_hop)
1397 {
1398         struct ieee80211_sub_if_data *sdata;
1399         struct mesh_path *mpath;
1400         struct sta_info *sta;
1401
1402         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1403
1404         rcu_read_lock();
1405
1406         sta = sta_info_get(sdata, next_hop);
1407         if (!sta) {
1408                 rcu_read_unlock();
1409                 return -ENOENT;
1410         }
1411
1412         mpath = mesh_path_lookup(sdata, dst);
1413         if (!mpath) {
1414                 rcu_read_unlock();
1415                 return -ENOENT;
1416         }
1417
1418         mesh_path_fix_nexthop(mpath, sta);
1419
1420         rcu_read_unlock();
1421         return 0;
1422 }
1423
1424 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1425                             struct mpath_info *pinfo)
1426 {
1427         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1428
1429         if (next_hop_sta)
1430                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1431         else
1432                 memset(next_hop, 0, ETH_ALEN);
1433
1434         memset(pinfo, 0, sizeof(*pinfo));
1435
1436         pinfo->generation = mesh_paths_generation;
1437
1438         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1439                         MPATH_INFO_SN |
1440                         MPATH_INFO_METRIC |
1441                         MPATH_INFO_EXPTIME |
1442                         MPATH_INFO_DISCOVERY_TIMEOUT |
1443                         MPATH_INFO_DISCOVERY_RETRIES |
1444                         MPATH_INFO_FLAGS;
1445
1446         pinfo->frame_qlen = mpath->frame_queue.qlen;
1447         pinfo->sn = mpath->sn;
1448         pinfo->metric = mpath->metric;
1449         if (time_before(jiffies, mpath->exp_time))
1450                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1451         pinfo->discovery_timeout =
1452                         jiffies_to_msecs(mpath->discovery_timeout);
1453         pinfo->discovery_retries = mpath->discovery_retries;
1454         if (mpath->flags & MESH_PATH_ACTIVE)
1455                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1456         if (mpath->flags & MESH_PATH_RESOLVING)
1457                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1458         if (mpath->flags & MESH_PATH_SN_VALID)
1459                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1460         if (mpath->flags & MESH_PATH_FIXED)
1461                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1462         if (mpath->flags & MESH_PATH_RESOLVED)
1463                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1464 }
1465
1466 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1467                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1468
1469 {
1470         struct ieee80211_sub_if_data *sdata;
1471         struct mesh_path *mpath;
1472
1473         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1474
1475         rcu_read_lock();
1476         mpath = mesh_path_lookup(sdata, dst);
1477         if (!mpath) {
1478                 rcu_read_unlock();
1479                 return -ENOENT;
1480         }
1481         memcpy(dst, mpath->dst, ETH_ALEN);
1482         mpath_set_pinfo(mpath, next_hop, pinfo);
1483         rcu_read_unlock();
1484         return 0;
1485 }
1486
1487 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1488                                 int idx, u8 *dst, u8 *next_hop,
1489                                 struct mpath_info *pinfo)
1490 {
1491         struct ieee80211_sub_if_data *sdata;
1492         struct mesh_path *mpath;
1493
1494         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1495
1496         rcu_read_lock();
1497         mpath = mesh_path_lookup_by_idx(sdata, idx);
1498         if (!mpath) {
1499                 rcu_read_unlock();
1500                 return -ENOENT;
1501         }
1502         memcpy(dst, mpath->dst, ETH_ALEN);
1503         mpath_set_pinfo(mpath, next_hop, pinfo);
1504         rcu_read_unlock();
1505         return 0;
1506 }
1507
1508 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1509                                 struct net_device *dev,
1510                                 struct mesh_config *conf)
1511 {
1512         struct ieee80211_sub_if_data *sdata;
1513         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1514
1515         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1516         return 0;
1517 }
1518
1519 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1520 {
1521         return (mask >> (parm-1)) & 0x1;
1522 }
1523
1524 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1525                 const struct mesh_setup *setup)
1526 {
1527         u8 *new_ie;
1528         const u8 *old_ie;
1529         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1530                                         struct ieee80211_sub_if_data, u.mesh);
1531
1532         /* allocate information elements */
1533         new_ie = NULL;
1534         old_ie = ifmsh->ie;
1535
1536         if (setup->ie_len) {
1537                 new_ie = kmemdup(setup->ie, setup->ie_len,
1538                                 GFP_KERNEL);
1539                 if (!new_ie)
1540                         return -ENOMEM;
1541         }
1542         ifmsh->ie_len = setup->ie_len;
1543         ifmsh->ie = new_ie;
1544         kfree(old_ie);
1545
1546         /* now copy the rest of the setup parameters */
1547         ifmsh->mesh_id_len = setup->mesh_id_len;
1548         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1549         ifmsh->mesh_sp_id = setup->sync_method;
1550         ifmsh->mesh_pp_id = setup->path_sel_proto;
1551         ifmsh->mesh_pm_id = setup->path_metric;
1552         ifmsh->user_mpm = setup->user_mpm;
1553         ifmsh->mesh_auth_id = setup->auth_id;
1554         ifmsh->security = IEEE80211_MESH_SEC_NONE;
1555         if (setup->is_authenticated)
1556                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1557         if (setup->is_secure)
1558                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1559
1560         /* mcast rate setting in Mesh Node */
1561         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1562                                                 sizeof(setup->mcast_rate));
1563         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1564
1565         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1566         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1567
1568         return 0;
1569 }
1570
1571 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1572                                         struct net_device *dev, u32 mask,
1573                                         const struct mesh_config *nconf)
1574 {
1575         struct mesh_config *conf;
1576         struct ieee80211_sub_if_data *sdata;
1577         struct ieee80211_if_mesh *ifmsh;
1578
1579         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1580         ifmsh = &sdata->u.mesh;
1581
1582         /* Set the config options which we are interested in setting */
1583         conf = &(sdata->u.mesh.mshcfg);
1584         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1585                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1586         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1587                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1588         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1589                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1590         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1591                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1592         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1593                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1594         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1595                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1596         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1597                 conf->element_ttl = nconf->element_ttl;
1598         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1599                 if (ifmsh->user_mpm)
1600                         return -EBUSY;
1601                 conf->auto_open_plinks = nconf->auto_open_plinks;
1602         }
1603         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1604                 conf->dot11MeshNbrOffsetMaxNeighbor =
1605                         nconf->dot11MeshNbrOffsetMaxNeighbor;
1606         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1607                 conf->dot11MeshHWMPmaxPREQretries =
1608                         nconf->dot11MeshHWMPmaxPREQretries;
1609         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1610                 conf->path_refresh_time = nconf->path_refresh_time;
1611         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1612                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1613         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1614                 conf->dot11MeshHWMPactivePathTimeout =
1615                         nconf->dot11MeshHWMPactivePathTimeout;
1616         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1617                 conf->dot11MeshHWMPpreqMinInterval =
1618                         nconf->dot11MeshHWMPpreqMinInterval;
1619         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1620                 conf->dot11MeshHWMPperrMinInterval =
1621                         nconf->dot11MeshHWMPperrMinInterval;
1622         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1623                            mask))
1624                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1625                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1626         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1627                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1628                 ieee80211_mesh_root_setup(ifmsh);
1629         }
1630         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1631                 /* our current gate announcement implementation rides on root
1632                  * announcements, so require this ifmsh to also be a root node
1633                  * */
1634                 if (nconf->dot11MeshGateAnnouncementProtocol &&
1635                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1636                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1637                         ieee80211_mesh_root_setup(ifmsh);
1638                 }
1639                 conf->dot11MeshGateAnnouncementProtocol =
1640                         nconf->dot11MeshGateAnnouncementProtocol;
1641         }
1642         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1643                 conf->dot11MeshHWMPRannInterval =
1644                         nconf->dot11MeshHWMPRannInterval;
1645         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1646                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1647         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1648                 /* our RSSI threshold implementation is supported only for
1649                  * devices that report signal in dBm.
1650                  */
1651                 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1652                         return -ENOTSUPP;
1653                 conf->rssi_threshold = nconf->rssi_threshold;
1654         }
1655         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1656                 conf->ht_opmode = nconf->ht_opmode;
1657                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1658                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1659         }
1660         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1661                 conf->dot11MeshHWMPactivePathToRootTimeout =
1662                         nconf->dot11MeshHWMPactivePathToRootTimeout;
1663         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1664                 conf->dot11MeshHWMProotInterval =
1665                         nconf->dot11MeshHWMProotInterval;
1666         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1667                 conf->dot11MeshHWMPconfirmationInterval =
1668                         nconf->dot11MeshHWMPconfirmationInterval;
1669         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1670                 conf->power_mode = nconf->power_mode;
1671                 ieee80211_mps_local_status_update(sdata);
1672         }
1673         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1674                 conf->dot11MeshAwakeWindowDuration =
1675                         nconf->dot11MeshAwakeWindowDuration;
1676         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1677                 conf->plink_timeout = nconf->plink_timeout;
1678         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1679         return 0;
1680 }
1681
1682 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1683                                const struct mesh_config *conf,
1684                                const struct mesh_setup *setup)
1685 {
1686         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1687         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1688         int err;
1689
1690         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1691         err = copy_mesh_setup(ifmsh, setup);
1692         if (err)
1693                 return err;
1694
1695         /* can mesh use other SMPS modes? */
1696         sdata->smps_mode = IEEE80211_SMPS_OFF;
1697         sdata->needed_rx_chains = sdata->local->rx_chains;
1698
1699         mutex_lock(&sdata->local->mtx);
1700         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1701                                         IEEE80211_CHANCTX_SHARED);
1702         mutex_unlock(&sdata->local->mtx);
1703         if (err)
1704                 return err;
1705
1706         return ieee80211_start_mesh(sdata);
1707 }
1708
1709 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1710 {
1711         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1712
1713         ieee80211_stop_mesh(sdata);
1714         mutex_lock(&sdata->local->mtx);
1715         ieee80211_vif_release_channel(sdata);
1716         mutex_unlock(&sdata->local->mtx);
1717
1718         return 0;
1719 }
1720 #endif
1721
1722 static int ieee80211_change_bss(struct wiphy *wiphy,
1723                                 struct net_device *dev,
1724                                 struct bss_parameters *params)
1725 {
1726         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1727         enum ieee80211_band band;
1728         u32 changed = 0;
1729
1730         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1731                 return -ENOENT;
1732
1733         band = ieee80211_get_sdata_band(sdata);
1734
1735         if (params->use_cts_prot >= 0) {
1736                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1737                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1738         }
1739         if (params->use_short_preamble >= 0) {
1740                 sdata->vif.bss_conf.use_short_preamble =
1741                         params->use_short_preamble;
1742                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1743         }
1744
1745         if (!sdata->vif.bss_conf.use_short_slot &&
1746             band == IEEE80211_BAND_5GHZ) {
1747                 sdata->vif.bss_conf.use_short_slot = true;
1748                 changed |= BSS_CHANGED_ERP_SLOT;
1749         }
1750
1751         if (params->use_short_slot_time >= 0) {
1752                 sdata->vif.bss_conf.use_short_slot =
1753                         params->use_short_slot_time;
1754                 changed |= BSS_CHANGED_ERP_SLOT;
1755         }
1756
1757         if (params->basic_rates) {
1758                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1759                                          wiphy->bands[band],
1760                                          params->basic_rates,
1761                                          params->basic_rates_len,
1762                                          &sdata->vif.bss_conf.basic_rates);
1763                 changed |= BSS_CHANGED_BASIC_RATES;
1764         }
1765
1766         if (params->ap_isolate >= 0) {
1767                 if (params->ap_isolate)
1768                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1769                 else
1770                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1771         }
1772
1773         if (params->ht_opmode >= 0) {
1774                 sdata->vif.bss_conf.ht_operation_mode =
1775                         (u16) params->ht_opmode;
1776                 changed |= BSS_CHANGED_HT;
1777         }
1778
1779         if (params->p2p_ctwindow >= 0) {
1780                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1781                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1782                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1783                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1784                 changed |= BSS_CHANGED_P2P_PS;
1785         }
1786
1787         if (params->p2p_opp_ps > 0) {
1788                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1789                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1790                 changed |= BSS_CHANGED_P2P_PS;
1791         } else if (params->p2p_opp_ps == 0) {
1792                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1793                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
1794                 changed |= BSS_CHANGED_P2P_PS;
1795         }
1796
1797         ieee80211_bss_info_change_notify(sdata, changed);
1798
1799         return 0;
1800 }
1801
1802 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1803                                     struct net_device *dev,
1804                                     struct ieee80211_txq_params *params)
1805 {
1806         struct ieee80211_local *local = wiphy_priv(wiphy);
1807         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1808         struct ieee80211_tx_queue_params p;
1809
1810         if (!local->ops->conf_tx)
1811                 return -EOPNOTSUPP;
1812
1813         if (local->hw.queues < IEEE80211_NUM_ACS)
1814                 return -EOPNOTSUPP;
1815
1816         memset(&p, 0, sizeof(p));
1817         p.aifs = params->aifs;
1818         p.cw_max = params->cwmax;
1819         p.cw_min = params->cwmin;
1820         p.txop = params->txop;
1821
1822         /*
1823          * Setting tx queue params disables u-apsd because it's only
1824          * called in master mode.
1825          */
1826         p.uapsd = false;
1827
1828         sdata->tx_conf[params->ac] = p;
1829         if (drv_conf_tx(local, sdata, params->ac, &p)) {
1830                 wiphy_debug(local->hw.wiphy,
1831                             "failed to set TX queue parameters for AC %d\n",
1832                             params->ac);
1833                 return -EINVAL;
1834         }
1835
1836         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1837
1838         return 0;
1839 }
1840
1841 #ifdef CONFIG_PM
1842 static int ieee80211_suspend(struct wiphy *wiphy,
1843                              struct cfg80211_wowlan *wowlan)
1844 {
1845         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1846 }
1847
1848 static int ieee80211_resume(struct wiphy *wiphy)
1849 {
1850         return __ieee80211_resume(wiphy_priv(wiphy));
1851 }
1852 #else
1853 #define ieee80211_suspend NULL
1854 #define ieee80211_resume NULL
1855 #endif
1856
1857 static int ieee80211_scan(struct wiphy *wiphy,
1858                           struct cfg80211_scan_request *req)
1859 {
1860         struct ieee80211_sub_if_data *sdata;
1861
1862         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
1863
1864         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1865         case NL80211_IFTYPE_STATION:
1866         case NL80211_IFTYPE_ADHOC:
1867         case NL80211_IFTYPE_MESH_POINT:
1868         case NL80211_IFTYPE_P2P_CLIENT:
1869         case NL80211_IFTYPE_P2P_DEVICE:
1870                 break;
1871         case NL80211_IFTYPE_P2P_GO:
1872                 if (sdata->local->ops->hw_scan)
1873                         break;
1874                 /*
1875                  * FIXME: implement NoA while scanning in software,
1876                  * for now fall through to allow scanning only when
1877                  * beaconing hasn't been configured yet
1878                  */
1879         case NL80211_IFTYPE_AP:
1880                 /*
1881                  * If the scan has been forced (and the driver supports
1882                  * forcing), don't care about being beaconing already.
1883                  * This will create problems to the attached stations (e.g. all
1884                  * the  frames sent while scanning on other channel will be
1885                  * lost)
1886                  */
1887                 if (sdata->u.ap.beacon &&
1888                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1889                      !(req->flags & NL80211_SCAN_FLAG_AP)))
1890                         return -EOPNOTSUPP;
1891                 break;
1892         default:
1893                 return -EOPNOTSUPP;
1894         }
1895
1896         return ieee80211_request_scan(sdata, req);
1897 }
1898
1899 static int
1900 ieee80211_sched_scan_start(struct wiphy *wiphy,
1901                            struct net_device *dev,
1902                            struct cfg80211_sched_scan_request *req)
1903 {
1904         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1905
1906         if (!sdata->local->ops->sched_scan_start)
1907                 return -EOPNOTSUPP;
1908
1909         return ieee80211_request_sched_scan_start(sdata, req);
1910 }
1911
1912 static int
1913 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1914 {
1915         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1916
1917         if (!sdata->local->ops->sched_scan_stop)
1918                 return -EOPNOTSUPP;
1919
1920         return ieee80211_request_sched_scan_stop(sdata);
1921 }
1922
1923 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1924                           struct cfg80211_auth_request *req)
1925 {
1926         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1927 }
1928
1929 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1930                            struct cfg80211_assoc_request *req)
1931 {
1932         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1933 }
1934
1935 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1936                             struct cfg80211_deauth_request *req)
1937 {
1938         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1939 }
1940
1941 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1942                               struct cfg80211_disassoc_request *req)
1943 {
1944         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1945 }
1946
1947 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1948                                struct cfg80211_ibss_params *params)
1949 {
1950         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
1951 }
1952
1953 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1954 {
1955         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
1956 }
1957
1958 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
1959                                     int rate[IEEE80211_NUM_BANDS])
1960 {
1961         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1962
1963         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
1964                sizeof(int) * IEEE80211_NUM_BANDS);
1965
1966         return 0;
1967 }
1968
1969 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1970 {
1971         struct ieee80211_local *local = wiphy_priv(wiphy);
1972         int err;
1973
1974         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1975                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1976
1977                 if (err)
1978                         return err;
1979         }
1980
1981         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
1982             (changed & WIPHY_PARAM_DYN_ACK)) {
1983                 s16 coverage_class;
1984
1985                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
1986                                         wiphy->coverage_class : -1;
1987                 err = drv_set_coverage_class(local, coverage_class);
1988
1989                 if (err)
1990                         return err;
1991         }
1992
1993         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1994                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1995
1996                 if (err)
1997                         return err;
1998         }
1999
2000         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2001                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2002                         return -EINVAL;
2003                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2004         }
2005         if (changed & WIPHY_PARAM_RETRY_LONG) {
2006                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2007                         return -EINVAL;
2008                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2009         }
2010         if (changed &
2011             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2012                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2013
2014         return 0;
2015 }
2016
2017 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2018                                   struct wireless_dev *wdev,
2019                                   enum nl80211_tx_power_setting type, int mbm)
2020 {
2021         struct ieee80211_local *local = wiphy_priv(wiphy);
2022         struct ieee80211_sub_if_data *sdata;
2023
2024         if (wdev) {
2025                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2026
2027                 switch (type) {
2028                 case NL80211_TX_POWER_AUTOMATIC:
2029                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2030                         break;
2031                 case NL80211_TX_POWER_LIMITED:
2032                 case NL80211_TX_POWER_FIXED:
2033                         if (mbm < 0 || (mbm % 100))
2034                                 return -EOPNOTSUPP;
2035                         sdata->user_power_level = MBM_TO_DBM(mbm);
2036                         break;
2037                 }
2038
2039                 ieee80211_recalc_txpower(sdata);
2040
2041                 return 0;
2042         }
2043
2044         switch (type) {
2045         case NL80211_TX_POWER_AUTOMATIC:
2046                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2047                 break;
2048         case NL80211_TX_POWER_LIMITED:
2049         case NL80211_TX_POWER_FIXED:
2050                 if (mbm < 0 || (mbm % 100))
2051                         return -EOPNOTSUPP;
2052                 local->user_power_level = MBM_TO_DBM(mbm);
2053                 break;
2054         }
2055
2056         mutex_lock(&local->iflist_mtx);
2057         list_for_each_entry(sdata, &local->interfaces, list)
2058                 sdata->user_power_level = local->user_power_level;
2059         list_for_each_entry(sdata, &local->interfaces, list)
2060                 ieee80211_recalc_txpower(sdata);
2061         mutex_unlock(&local->iflist_mtx);
2062
2063         return 0;
2064 }
2065
2066 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2067                                   struct wireless_dev *wdev,
2068                                   int *dbm)
2069 {
2070         struct ieee80211_local *local = wiphy_priv(wiphy);
2071         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2072
2073         if (!local->use_chanctx)
2074                 *dbm = local->hw.conf.power_level;
2075         else
2076                 *dbm = sdata->vif.bss_conf.txpower;
2077
2078         return 0;
2079 }
2080
2081 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2082                                   const u8 *addr)
2083 {
2084         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2085
2086         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2087
2088         return 0;
2089 }
2090
2091 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2092 {
2093         struct ieee80211_local *local = wiphy_priv(wiphy);
2094
2095         drv_rfkill_poll(local);
2096 }
2097
2098 #ifdef CONFIG_NL80211_TESTMODE
2099 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2100                                   struct wireless_dev *wdev,
2101                                   void *data, int len)
2102 {
2103         struct ieee80211_local *local = wiphy_priv(wiphy);
2104         struct ieee80211_vif *vif = NULL;
2105
2106         if (!local->ops->testmode_cmd)
2107                 return -EOPNOTSUPP;
2108
2109         if (wdev) {
2110                 struct ieee80211_sub_if_data *sdata;
2111
2112                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2113                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2114                         vif = &sdata->vif;
2115         }
2116
2117         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2118 }
2119
2120 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2121                                    struct sk_buff *skb,
2122                                    struct netlink_callback *cb,
2123                                    void *data, int len)
2124 {
2125         struct ieee80211_local *local = wiphy_priv(wiphy);
2126
2127         if (!local->ops->testmode_dump)
2128                 return -EOPNOTSUPP;
2129
2130         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2131 }
2132 #endif
2133
2134 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2135                                 enum ieee80211_smps_mode smps_mode)
2136 {
2137         struct sta_info *sta;
2138         enum ieee80211_smps_mode old_req;
2139         int i;
2140
2141         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2142                 return -EINVAL;
2143
2144         if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2145                 return 0;
2146
2147         old_req = sdata->u.ap.req_smps;
2148         sdata->u.ap.req_smps = smps_mode;
2149
2150         /* AUTOMATIC doesn't mean much for AP - don't allow it */
2151         if (old_req == smps_mode ||
2152             smps_mode == IEEE80211_SMPS_AUTOMATIC)
2153                 return 0;
2154
2155          /* If no associated stations, there's no need to do anything */
2156         if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2157                 sdata->smps_mode = smps_mode;
2158                 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2159                 return 0;
2160         }
2161
2162         ht_dbg(sdata,
2163                "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2164                smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2165
2166         mutex_lock(&sdata->local->sta_mtx);
2167         for (i = 0; i < STA_HASH_SIZE; i++) {
2168                 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2169                                 lockdep_is_held(&sdata->local->sta_mtx));
2170                      sta;
2171                      sta = rcu_dereference_protected(sta->hnext,
2172                                 lockdep_is_held(&sdata->local->sta_mtx))) {
2173                         /*
2174                          * Only stations associated to our AP and
2175                          * associated VLANs
2176                          */
2177                         if (sta->sdata->bss != &sdata->u.ap)
2178                                 continue;
2179
2180                         /* This station doesn't support MIMO - skip it */
2181                         if (sta_info_tx_streams(sta) == 1)
2182                                 continue;
2183
2184                         /*
2185                          * Don't wake up a STA just to send the action frame
2186                          * unless we are getting more restrictive.
2187                          */
2188                         if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2189                             !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2190                                                            smps_mode)) {
2191                                 ht_dbg(sdata,
2192                                        "Won't send SMPS to sleeping STA %pM\n",
2193                                        sta->sta.addr);
2194                                 continue;
2195                         }
2196
2197                         /*
2198                          * If the STA is not authorized, wait until it gets
2199                          * authorized and the action frame will be sent then.
2200                          */
2201                         if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2202                                 continue;
2203
2204                         ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2205                         ieee80211_send_smps_action(sdata, smps_mode,
2206                                                    sta->sta.addr,
2207                                                    sdata->vif.bss_conf.bssid);
2208                 }
2209         }
2210         mutex_unlock(&sdata->local->sta_mtx);
2211
2212         sdata->smps_mode = smps_mode;
2213         ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2214
2215         return 0;
2216 }
2217
2218 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2219                                  enum ieee80211_smps_mode smps_mode)
2220 {
2221         const u8 *ap;
2222         enum ieee80211_smps_mode old_req;
2223         int err;
2224
2225         lockdep_assert_held(&sdata->wdev.mtx);
2226
2227         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2228                 return -EINVAL;
2229
2230         old_req = sdata->u.mgd.req_smps;
2231         sdata->u.mgd.req_smps = smps_mode;
2232
2233         if (old_req == smps_mode &&
2234             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2235                 return 0;
2236
2237         /*
2238          * If not associated, or current association is not an HT
2239          * association, there's no need to do anything, just store
2240          * the new value until we associate.
2241          */
2242         if (!sdata->u.mgd.associated ||
2243             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2244                 return 0;
2245
2246         ap = sdata->u.mgd.associated->bssid;
2247
2248         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2249                 if (sdata->u.mgd.powersave)
2250                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2251                 else
2252                         smps_mode = IEEE80211_SMPS_OFF;
2253         }
2254
2255         /* send SM PS frame to AP */
2256         err = ieee80211_send_smps_action(sdata, smps_mode,
2257                                          ap, ap);
2258         if (err)
2259                 sdata->u.mgd.req_smps = old_req;
2260
2261         return err;
2262 }
2263
2264 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2265                                     bool enabled, int timeout)
2266 {
2267         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2268         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2269
2270         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2271                 return -EOPNOTSUPP;
2272
2273         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2274                 return -EOPNOTSUPP;
2275
2276         if (enabled == sdata->u.mgd.powersave &&
2277             timeout == local->dynamic_ps_forced_timeout)
2278                 return 0;
2279
2280         sdata->u.mgd.powersave = enabled;
2281         local->dynamic_ps_forced_timeout = timeout;
2282
2283         /* no change, but if automatic follow powersave */
2284         sdata_lock(sdata);
2285         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2286         sdata_unlock(sdata);
2287
2288         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2289                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2290
2291         ieee80211_recalc_ps(local, -1);
2292         ieee80211_recalc_ps_vif(sdata);
2293
2294         return 0;
2295 }
2296
2297 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2298                                          struct net_device *dev,
2299                                          s32 rssi_thold, u32 rssi_hyst)
2300 {
2301         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2302         struct ieee80211_vif *vif = &sdata->vif;
2303         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2304
2305         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2306             rssi_hyst == bss_conf->cqm_rssi_hyst)
2307                 return 0;
2308
2309         bss_conf->cqm_rssi_thold = rssi_thold;
2310         bss_conf->cqm_rssi_hyst = rssi_hyst;
2311
2312         /* tell the driver upon association, unless already associated */
2313         if (sdata->u.mgd.associated &&
2314             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2315                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2316
2317         return 0;
2318 }
2319
2320 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2321                                       struct net_device *dev,
2322                                       const u8 *addr,
2323                                       const struct cfg80211_bitrate_mask *mask)
2324 {
2325         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2326         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2327         int i, ret;
2328
2329         if (!ieee80211_sdata_running(sdata))
2330                 return -ENETDOWN;
2331
2332         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2333                 ret = drv_set_bitrate_mask(local, sdata, mask);
2334                 if (ret)
2335                         return ret;
2336         }
2337
2338         for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2339                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2340                 int j;
2341
2342                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2343                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2344                        sizeof(mask->control[i].ht_mcs));
2345
2346                 sdata->rc_has_mcs_mask[i] = false;
2347                 if (!sband)
2348                         continue;
2349
2350                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2351                         if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2352                                 sdata->rc_has_mcs_mask[i] = true;
2353                                 break;
2354                         }
2355         }
2356
2357         return 0;
2358 }
2359
2360 static bool ieee80211_coalesce_started_roc(struct ieee80211_local *local,
2361                                            struct ieee80211_roc_work *new_roc,
2362                                            struct ieee80211_roc_work *cur_roc)
2363 {
2364         unsigned long j = jiffies;
2365         unsigned long cur_roc_end = cur_roc->hw_start_time +
2366                                     msecs_to_jiffies(cur_roc->duration);
2367         struct ieee80211_roc_work *next_roc;
2368         int new_dur;
2369
2370         if (WARN_ON(!cur_roc->started || !cur_roc->hw_begun))
2371                 return false;
2372
2373         if (time_after(j + IEEE80211_ROC_MIN_LEFT, cur_roc_end))
2374                 return false;
2375
2376         ieee80211_handle_roc_started(new_roc);
2377
2378         new_dur = new_roc->duration - jiffies_to_msecs(cur_roc_end - j);
2379
2380         /* cur_roc is long enough - add new_roc to the dependents list. */
2381         if (new_dur <= 0) {
2382                 list_add_tail(&new_roc->list, &cur_roc->dependents);
2383                 return true;
2384         }
2385
2386         new_roc->duration = new_dur;
2387
2388         /*
2389          * if cur_roc was already coalesced before, we might
2390          * want to extend the next roc instead of adding
2391          * a new one.
2392          */
2393         next_roc = list_entry(cur_roc->list.next,
2394                               struct ieee80211_roc_work, list);
2395         if (&next_roc->list != &local->roc_list &&
2396             next_roc->chan == new_roc->chan &&
2397             next_roc->sdata == new_roc->sdata &&
2398             !WARN_ON(next_roc->started)) {
2399                 list_add_tail(&new_roc->list, &next_roc->dependents);
2400                 next_roc->duration = max(next_roc->duration,
2401                                          new_roc->duration);
2402                 next_roc->type = max(next_roc->type, new_roc->type);
2403                 return true;
2404         }
2405
2406         /* add right after cur_roc */
2407         list_add(&new_roc->list, &cur_roc->list);
2408
2409         return true;
2410 }
2411
2412 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2413                                     struct ieee80211_sub_if_data *sdata,
2414                                     struct ieee80211_channel *channel,
2415                                     unsigned int duration, u64 *cookie,
2416                                     struct sk_buff *txskb,
2417                                     enum ieee80211_roc_type type)
2418 {
2419         struct ieee80211_roc_work *roc, *tmp;
2420         bool queued = false;
2421         int ret;
2422
2423         lockdep_assert_held(&local->mtx);
2424
2425         if (local->use_chanctx && !local->ops->remain_on_channel)
2426                 return -EOPNOTSUPP;
2427
2428         roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2429         if (!roc)
2430                 return -ENOMEM;
2431
2432         /*
2433          * If the duration is zero, then the driver
2434          * wouldn't actually do anything. Set it to
2435          * 10 for now.
2436          *
2437          * TODO: cancel the off-channel operation
2438          *       when we get the SKB's TX status and
2439          *       the wait time was zero before.
2440          */
2441         if (!duration)
2442                 duration = 10;
2443
2444         roc->chan = channel;
2445         roc->duration = duration;
2446         roc->req_duration = duration;
2447         roc->frame = txskb;
2448         roc->type = type;
2449         roc->mgmt_tx_cookie = (unsigned long)txskb;
2450         roc->sdata = sdata;
2451         INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2452         INIT_LIST_HEAD(&roc->dependents);
2453
2454         /*
2455          * cookie is either the roc cookie (for normal roc)
2456          * or the SKB (for mgmt TX)
2457          */
2458         if (!txskb) {
2459                 /* local->mtx protects this */
2460                 local->roc_cookie_counter++;
2461                 roc->cookie = local->roc_cookie_counter;
2462                 /* wow, you wrapped 64 bits ... more likely a bug */
2463                 if (WARN_ON(roc->cookie == 0)) {
2464                         roc->cookie = 1;
2465                         local->roc_cookie_counter++;
2466                 }
2467                 *cookie = roc->cookie;
2468         } else {
2469                 *cookie = (unsigned long)txskb;
2470         }
2471
2472         /* if there's one pending or we're scanning, queue this one */
2473         if (!list_empty(&local->roc_list) ||
2474             local->scanning || local->radar_detect_enabled)
2475                 goto out_check_combine;
2476
2477         /* if not HW assist, just queue & schedule work */
2478         if (!local->ops->remain_on_channel) {
2479                 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2480                 goto out_queue;
2481         }
2482
2483         /* otherwise actually kick it off here (for error handling) */
2484
2485         ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2486         if (ret) {
2487                 kfree(roc);
2488                 return ret;
2489         }
2490
2491         roc->started = true;
2492         goto out_queue;
2493
2494  out_check_combine:
2495         list_for_each_entry(tmp, &local->roc_list, list) {
2496                 if (tmp->chan != channel || tmp->sdata != sdata)
2497                         continue;
2498
2499                 /*
2500                  * Extend this ROC if possible:
2501                  *
2502                  * If it hasn't started yet, just increase the duration
2503                  * and add the new one to the list of dependents.
2504                  * If the type of the new ROC has higher priority, modify the
2505                  * type of the previous one to match that of the new one.
2506                  */
2507                 if (!tmp->started) {
2508                         list_add_tail(&roc->list, &tmp->dependents);
2509                         tmp->duration = max(tmp->duration, roc->duration);
2510                         tmp->type = max(tmp->type, roc->type);
2511                         queued = true;
2512                         break;
2513                 }
2514
2515                 /* If it has already started, it's more difficult ... */
2516                 if (local->ops->remain_on_channel) {
2517                         /*
2518                          * In the offloaded ROC case, if it hasn't begun, add
2519                          * this new one to the dependent list to be handled
2520                          * when the master one begins. If it has begun,
2521                          * check that there's still a minimum time left and
2522                          * if so, start this one, transmitting the frame, but
2523                          * add it to the list directly after this one with
2524                          * a reduced time so we'll ask the driver to execute
2525                          * it right after finishing the previous one, in the
2526                          * hope that it'll also be executed right afterwards,
2527                          * effectively extending the old one.
2528                          * If there's no minimum time left, just add it to the
2529                          * normal list.
2530                          * TODO: the ROC type is ignored here, assuming that it
2531                          * is better to immediately use the current ROC.
2532                          */
2533                         if (!tmp->hw_begun) {
2534                                 list_add_tail(&roc->list, &tmp->dependents);
2535                                 queued = true;
2536                                 break;
2537                         }
2538
2539                         if (ieee80211_coalesce_started_roc(local, roc, tmp))
2540                                 queued = true;
2541                 } else if (del_timer_sync(&tmp->work.timer)) {
2542                         unsigned long new_end;
2543
2544                         /*
2545                          * In the software ROC case, cancel the timer, if
2546                          * that fails then the finish work is already
2547                          * queued/pending and thus we queue the new ROC
2548                          * normally, if that succeeds then we can extend
2549                          * the timer duration and TX the frame (if any.)
2550                          */
2551
2552                         list_add_tail(&roc->list, &tmp->dependents);
2553                         queued = true;
2554
2555                         new_end = jiffies + msecs_to_jiffies(roc->duration);
2556
2557                         /* ok, it was started & we canceled timer */
2558                         if (time_after(new_end, tmp->work.timer.expires))
2559                                 mod_timer(&tmp->work.timer, new_end);
2560                         else
2561                                 add_timer(&tmp->work.timer);
2562
2563                         ieee80211_handle_roc_started(roc);
2564                 }
2565                 break;
2566         }
2567
2568  out_queue:
2569         if (!queued)
2570                 list_add_tail(&roc->list, &local->roc_list);
2571
2572         return 0;
2573 }
2574
2575 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2576                                        struct wireless_dev *wdev,
2577                                        struct ieee80211_channel *chan,
2578                                        unsigned int duration,
2579                                        u64 *cookie)
2580 {
2581         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2582         struct ieee80211_local *local = sdata->local;
2583         int ret;
2584
2585         mutex_lock(&local->mtx);
2586         ret = ieee80211_start_roc_work(local, sdata, chan,
2587                                        duration, cookie, NULL,
2588                                        IEEE80211_ROC_TYPE_NORMAL);
2589         mutex_unlock(&local->mtx);
2590
2591         return ret;
2592 }
2593
2594 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2595                                 u64 cookie, bool mgmt_tx)
2596 {
2597         struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2598         int ret;
2599
2600         mutex_lock(&local->mtx);
2601         list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2602                 struct ieee80211_roc_work *dep, *tmp2;
2603
2604                 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2605                         if (!mgmt_tx && dep->cookie != cookie)
2606                                 continue;
2607                         else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2608                                 continue;
2609                         /* found dependent item -- just remove it */
2610                         list_del(&dep->list);
2611                         mutex_unlock(&local->mtx);
2612
2613                         ieee80211_roc_notify_destroy(dep, true);
2614                         return 0;
2615                 }
2616
2617                 if (!mgmt_tx && roc->cookie != cookie)
2618                         continue;
2619                 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2620                         continue;
2621
2622                 found = roc;
2623                 break;
2624         }
2625
2626         if (!found) {
2627                 mutex_unlock(&local->mtx);
2628                 return -ENOENT;
2629         }
2630
2631         /*
2632          * We found the item to cancel, so do that. Note that it
2633          * may have dependents, which we also cancel (and send
2634          * the expired signal for.) Not doing so would be quite
2635          * tricky here, but we may need to fix it later.
2636          */
2637
2638         if (local->ops->remain_on_channel) {
2639                 if (found->started) {
2640                         ret = drv_cancel_remain_on_channel(local);
2641                         if (WARN_ON_ONCE(ret)) {
2642                                 mutex_unlock(&local->mtx);
2643                                 return ret;
2644                         }
2645                 }
2646
2647                 list_del(&found->list);
2648
2649                 if (found->started)
2650                         ieee80211_start_next_roc(local);
2651                 mutex_unlock(&local->mtx);
2652
2653                 ieee80211_roc_notify_destroy(found, true);
2654         } else {
2655                 /* work may be pending so use it all the time */
2656                 found->abort = true;
2657                 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2658
2659                 mutex_unlock(&local->mtx);
2660
2661                 /* work will clean up etc */
2662                 flush_delayed_work(&found->work);
2663                 WARN_ON(!found->to_be_freed);
2664                 kfree(found);
2665         }
2666
2667         return 0;
2668 }
2669
2670 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2671                                               struct wireless_dev *wdev,
2672                                               u64 cookie)
2673 {
2674         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2675         struct ieee80211_local *local = sdata->local;
2676
2677         return ieee80211_cancel_roc(local, cookie, false);
2678 }
2679
2680 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2681                                            struct net_device *dev,
2682                                            struct cfg80211_chan_def *chandef,
2683                                            u32 cac_time_ms)
2684 {
2685         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2686         struct ieee80211_local *local = sdata->local;
2687         int err;
2688
2689         mutex_lock(&local->mtx);
2690         if (!list_empty(&local->roc_list) || local->scanning) {
2691                 err = -EBUSY;
2692                 goto out_unlock;
2693         }
2694
2695         /* whatever, but channel contexts should not complain about that one */
2696         sdata->smps_mode = IEEE80211_SMPS_OFF;
2697         sdata->needed_rx_chains = local->rx_chains;
2698
2699         err = ieee80211_vif_use_channel(sdata, chandef,
2700                                         IEEE80211_CHANCTX_SHARED);
2701         if (err)
2702                 goto out_unlock;
2703
2704         ieee80211_queue_delayed_work(&sdata->local->hw,
2705                                      &sdata->dfs_cac_timer_work,
2706                                      msecs_to_jiffies(cac_time_ms));
2707
2708  out_unlock:
2709         mutex_unlock(&local->mtx);
2710         return err;
2711 }
2712
2713 static struct cfg80211_beacon_data *
2714 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2715 {
2716         struct cfg80211_beacon_data *new_beacon;
2717         u8 *pos;
2718         int len;
2719
2720         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2721               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2722               beacon->probe_resp_len;
2723
2724         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2725         if (!new_beacon)
2726                 return NULL;
2727
2728         pos = (u8 *)(new_beacon + 1);
2729         if (beacon->head_len) {
2730                 new_beacon->head_len = beacon->head_len;
2731                 new_beacon->head = pos;
2732                 memcpy(pos, beacon->head, beacon->head_len);
2733                 pos += beacon->head_len;
2734         }
2735         if (beacon->tail_len) {
2736                 new_beacon->tail_len = beacon->tail_len;
2737                 new_beacon->tail = pos;
2738                 memcpy(pos, beacon->tail, beacon->tail_len);
2739                 pos += beacon->tail_len;
2740         }
2741         if (beacon->beacon_ies_len) {
2742                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2743                 new_beacon->beacon_ies = pos;
2744                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2745                 pos += beacon->beacon_ies_len;
2746         }
2747         if (beacon->proberesp_ies_len) {
2748                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2749                 new_beacon->proberesp_ies = pos;
2750                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2751                 pos += beacon->proberesp_ies_len;
2752         }
2753         if (beacon->assocresp_ies_len) {
2754                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2755                 new_beacon->assocresp_ies = pos;
2756                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2757                 pos += beacon->assocresp_ies_len;
2758         }
2759         if (beacon->probe_resp_len) {
2760                 new_beacon->probe_resp_len = beacon->probe_resp_len;
2761                 beacon->probe_resp = pos;
2762                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2763                 pos += beacon->probe_resp_len;
2764         }
2765
2766         return new_beacon;
2767 }
2768
2769 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2770 {
2771         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2772
2773         ieee80211_queue_work(&sdata->local->hw,
2774                              &sdata->csa_finalize_work);
2775 }
2776 EXPORT_SYMBOL(ieee80211_csa_finish);
2777
2778 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2779                                           u32 *changed)
2780 {
2781         int err;
2782
2783         switch (sdata->vif.type) {
2784         case NL80211_IFTYPE_AP:
2785                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2786                                               NULL);
2787                 kfree(sdata->u.ap.next_beacon);
2788                 sdata->u.ap.next_beacon = NULL;
2789
2790                 if (err < 0)
2791                         return err;
2792                 *changed |= err;
2793                 break;
2794         case NL80211_IFTYPE_ADHOC:
2795                 err = ieee80211_ibss_finish_csa(sdata);
2796                 if (err < 0)
2797                         return err;
2798                 *changed |= err;
2799                 break;
2800 #ifdef CONFIG_MAC80211_MESH
2801         case NL80211_IFTYPE_MESH_POINT:
2802                 err = ieee80211_mesh_finish_csa(sdata);
2803                 if (err < 0)
2804                         return err;
2805                 *changed |= err;
2806                 break;
2807 #endif
2808         default:
2809                 WARN_ON(1);
2810                 return -EINVAL;
2811         }
2812
2813         return 0;
2814 }
2815
2816 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2817 {
2818         struct ieee80211_local *local = sdata->local;
2819         u32 changed = 0;
2820         int err;
2821
2822         sdata_assert_lock(sdata);
2823         lockdep_assert_held(&local->mtx);
2824         lockdep_assert_held(&local->chanctx_mtx);
2825
2826         /*
2827          * using reservation isn't immediate as it may be deferred until later
2828          * with multi-vif. once reservation is complete it will re-schedule the
2829          * work with no reserved_chanctx so verify chandef to check if it
2830          * completed successfully
2831          */
2832
2833         if (sdata->reserved_chanctx) {
2834                 /*
2835                  * with multi-vif csa driver may call ieee80211_csa_finish()
2836                  * many times while waiting for other interfaces to use their
2837                  * reservations
2838                  */
2839                 if (sdata->reserved_ready)
2840                         return 0;
2841
2842                 err = ieee80211_vif_use_reserved_context(sdata);
2843                 if (err)
2844                         return err;
2845
2846                 return 0;
2847         }
2848
2849         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2850                                         &sdata->csa_chandef))
2851                 return -EINVAL;
2852
2853         sdata->vif.csa_active = false;
2854
2855         err = ieee80211_set_after_csa_beacon(sdata, &changed);
2856         if (err)
2857                 return err;
2858
2859         ieee80211_bss_info_change_notify(sdata, changed);
2860         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2861
2862         if (sdata->csa_block_tx) {
2863                 ieee80211_wake_vif_queues(local, sdata,
2864                                           IEEE80211_QUEUE_STOP_REASON_CSA);
2865                 sdata->csa_block_tx = false;
2866         }
2867
2868         return 0;
2869 }
2870
2871 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2872 {
2873         if (__ieee80211_csa_finalize(sdata)) {
2874                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2875                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2876                                     GFP_KERNEL);
2877         }
2878 }
2879
2880 void ieee80211_csa_finalize_work(struct work_struct *work)
2881 {
2882         struct ieee80211_sub_if_data *sdata =
2883                 container_of(work, struct ieee80211_sub_if_data,
2884                              csa_finalize_work);
2885         struct ieee80211_local *local = sdata->local;
2886
2887         sdata_lock(sdata);
2888         mutex_lock(&local->mtx);
2889         mutex_lock(&local->chanctx_mtx);
2890
2891         /* AP might have been stopped while waiting for the lock. */
2892         if (!sdata->vif.csa_active)
2893                 goto unlock;
2894
2895         if (!ieee80211_sdata_running(sdata))
2896                 goto unlock;
2897
2898         ieee80211_csa_finalize(sdata);
2899
2900 unlock:
2901         mutex_unlock(&local->chanctx_mtx);
2902         mutex_unlock(&local->mtx);
2903         sdata_unlock(sdata);
2904 }
2905
2906 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2907                                     struct cfg80211_csa_settings *params,
2908                                     u32 *changed)
2909 {
2910         struct ieee80211_csa_settings csa = {};
2911         int err;
2912
2913         switch (sdata->vif.type) {
2914         case NL80211_IFTYPE_AP:
2915                 sdata->u.ap.next_beacon =
2916                         cfg80211_beacon_dup(&params->beacon_after);
2917                 if (!sdata->u.ap.next_beacon)
2918                         return -ENOMEM;
2919
2920                 /*
2921                  * With a count of 0, we don't have to wait for any
2922                  * TBTT before switching, so complete the CSA
2923                  * immediately.  In theory, with a count == 1 we
2924                  * should delay the switch until just before the next
2925                  * TBTT, but that would complicate things so we switch
2926                  * immediately too.  If we would delay the switch
2927                  * until the next TBTT, we would have to set the probe
2928                  * response here.
2929                  *
2930                  * TODO: A channel switch with count <= 1 without
2931                  * sending a CSA action frame is kind of useless,
2932                  * because the clients won't know we're changing
2933                  * channels.  The action frame must be implemented
2934                  * either here or in the userspace.
2935                  */
2936                 if (params->count <= 1)
2937                         break;
2938
2939                 if ((params->n_counter_offsets_beacon >
2940                      IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2941                     (params->n_counter_offsets_presp >
2942                      IEEE80211_MAX_CSA_COUNTERS_NUM))
2943                         return -EINVAL;
2944
2945                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2946                 csa.counter_offsets_presp = params->counter_offsets_presp;
2947                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2948                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2949                 csa.count = params->count;
2950
2951                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
2952                 if (err < 0) {
2953                         kfree(sdata->u.ap.next_beacon);
2954                         return err;
2955                 }
2956                 *changed |= err;
2957
2958                 break;
2959         case NL80211_IFTYPE_ADHOC:
2960                 if (!sdata->vif.bss_conf.ibss_joined)
2961                         return -EINVAL;
2962
2963                 if (params->chandef.width != sdata->u.ibss.chandef.width)
2964                         return -EINVAL;
2965
2966                 switch (params->chandef.width) {
2967                 case NL80211_CHAN_WIDTH_40:
2968                         if (cfg80211_get_chandef_type(&params->chandef) !=
2969                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2970                                 return -EINVAL;
2971                 case NL80211_CHAN_WIDTH_5:
2972                 case NL80211_CHAN_WIDTH_10:
2973                 case NL80211_CHAN_WIDTH_20_NOHT:
2974                 case NL80211_CHAN_WIDTH_20:
2975                         break;
2976                 default:
2977                         return -EINVAL;
2978                 }
2979
2980                 /* changes into another band are not supported */
2981                 if (sdata->u.ibss.chandef.chan->band !=
2982                     params->chandef.chan->band)
2983                         return -EINVAL;
2984
2985                 /* see comments in the NL80211_IFTYPE_AP block */
2986                 if (params->count > 1) {
2987                         err = ieee80211_ibss_csa_beacon(sdata, params);
2988                         if (err < 0)
2989                                 return err;
2990                         *changed |= err;
2991                 }
2992
2993                 ieee80211_send_action_csa(sdata, params);
2994
2995                 break;
2996 #ifdef CONFIG_MAC80211_MESH
2997         case NL80211_IFTYPE_MESH_POINT: {
2998                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2999
3000                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3001                         return -EINVAL;
3002
3003                 /* changes into another band are not supported */
3004                 if (sdata->vif.bss_conf.chandef.chan->band !=
3005                     params->chandef.chan->band)
3006                         return -EINVAL;
3007
3008                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3009                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3010                         if (!ifmsh->pre_value)
3011                                 ifmsh->pre_value = 1;
3012                         else
3013                                 ifmsh->pre_value++;
3014                 }
3015
3016                 /* see comments in the NL80211_IFTYPE_AP block */
3017                 if (params->count > 1) {
3018                         err = ieee80211_mesh_csa_beacon(sdata, params);
3019                         if (err < 0) {
3020                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3021                                 return err;
3022                         }
3023                         *changed |= err;
3024                 }
3025
3026                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3027                         ieee80211_send_action_csa(sdata, params);
3028
3029                 break;
3030                 }
3031 #endif
3032         default:
3033                 return -EOPNOTSUPP;
3034         }
3035
3036         return 0;
3037 }
3038
3039 static int
3040 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3041                            struct cfg80211_csa_settings *params)
3042 {
3043         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3044         struct ieee80211_local *local = sdata->local;
3045         struct ieee80211_chanctx_conf *conf;
3046         struct ieee80211_chanctx *chanctx;
3047         int err, changed = 0;
3048
3049         sdata_assert_lock(sdata);
3050         lockdep_assert_held(&local->mtx);
3051
3052         if (!list_empty(&local->roc_list) || local->scanning)
3053                 return -EBUSY;
3054
3055         if (sdata->wdev.cac_started)
3056                 return -EBUSY;
3057
3058         if (cfg80211_chandef_identical(&params->chandef,
3059                                        &sdata->vif.bss_conf.chandef))
3060                 return -EINVAL;
3061
3062         /* don't allow another channel switch if one is already active. */
3063         if (sdata->vif.csa_active)
3064                 return -EBUSY;
3065
3066         mutex_lock(&local->chanctx_mtx);
3067         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3068                                          lockdep_is_held(&local->chanctx_mtx));
3069         if (!conf) {
3070                 err = -EBUSY;
3071                 goto out;
3072         }
3073
3074         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3075         if (!chanctx) {
3076                 err = -EBUSY;
3077                 goto out;
3078         }
3079
3080         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3081                                             chanctx->mode,
3082                                             params->radar_required);
3083         if (err)
3084                 goto out;
3085
3086         /* if reservation is invalid then this will fail */
3087         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3088         if (err) {
3089                 ieee80211_vif_unreserve_chanctx(sdata);
3090                 goto out;
3091         }
3092
3093         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3094         if (err) {
3095                 ieee80211_vif_unreserve_chanctx(sdata);
3096                 goto out;
3097         }
3098
3099         sdata->csa_chandef = params->chandef;
3100         sdata->csa_block_tx = params->block_tx;
3101         sdata->vif.csa_active = true;
3102
3103         if (sdata->csa_block_tx)
3104                 ieee80211_stop_vif_queues(local, sdata,
3105                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3106
3107         if (changed) {
3108                 ieee80211_bss_info_change_notify(sdata, changed);
3109                 drv_channel_switch_beacon(sdata, &params->chandef);
3110         } else {
3111                 /* if the beacon didn't change, we can finalize immediately */
3112                 ieee80211_csa_finalize(sdata);
3113         }
3114
3115 out:
3116         mutex_unlock(&local->chanctx_mtx);
3117         return err;
3118 }
3119
3120 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3121                              struct cfg80211_csa_settings *params)
3122 {
3123         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3124         struct ieee80211_local *local = sdata->local;
3125         int err;
3126
3127         mutex_lock(&local->mtx);
3128         err = __ieee80211_channel_switch(wiphy, dev, params);
3129         mutex_unlock(&local->mtx);
3130
3131         return err;
3132 }
3133
3134 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3135                              struct cfg80211_mgmt_tx_params *params,
3136                              u64 *cookie)
3137 {
3138         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3139         struct ieee80211_local *local = sdata->local;
3140         struct sk_buff *skb;
3141         struct sta_info *sta;
3142         const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3143         bool need_offchan = false;
3144         u32 flags;
3145         int ret;
3146         u8 *data;
3147
3148         if (params->dont_wait_for_ack)
3149                 flags = IEEE80211_TX_CTL_NO_ACK;
3150         else
3151                 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3152                         IEEE80211_TX_CTL_REQ_TX_STATUS;
3153
3154         if (params->no_cck)
3155                 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3156
3157         switch (sdata->vif.type) {
3158         case NL80211_IFTYPE_ADHOC:
3159                 if (!sdata->vif.bss_conf.ibss_joined)
3160                         need_offchan = true;
3161                 /* fall through */
3162 #ifdef CONFIG_MAC80211_MESH
3163         case NL80211_IFTYPE_MESH_POINT:
3164                 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3165                     !sdata->u.mesh.mesh_id_len)
3166                         need_offchan = true;
3167                 /* fall through */
3168 #endif
3169         case NL80211_IFTYPE_AP:
3170         case NL80211_IFTYPE_AP_VLAN:
3171         case NL80211_IFTYPE_P2P_GO:
3172                 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3173                     !ieee80211_vif_is_mesh(&sdata->vif) &&
3174                     !rcu_access_pointer(sdata->bss->beacon))
3175                         need_offchan = true;
3176                 if (!ieee80211_is_action(mgmt->frame_control) ||
3177                     mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3178                     mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3179                     mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3180                         break;
3181                 rcu_read_lock();
3182                 sta = sta_info_get(sdata, mgmt->da);
3183                 rcu_read_unlock();
3184                 if (!sta)
3185                         return -ENOLINK;
3186                 break;
3187         case NL80211_IFTYPE_STATION:
3188         case NL80211_IFTYPE_P2P_CLIENT:
3189                 if (!sdata->u.mgd.associated)
3190                         need_offchan = true;
3191                 break;
3192         case NL80211_IFTYPE_P2P_DEVICE:
3193                 need_offchan = true;
3194                 break;
3195         default:
3196                 return -EOPNOTSUPP;
3197         }
3198
3199         /* configurations requiring offchan cannot work if no channel has been
3200          * specified
3201          */
3202         if (need_offchan && !params->chan)
3203                 return -EINVAL;
3204
3205         mutex_lock(&local->mtx);
3206
3207         /* Check if the operating channel is the requested channel */
3208         if (!need_offchan) {
3209                 struct ieee80211_chanctx_conf *chanctx_conf;
3210
3211                 rcu_read_lock();
3212                 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3213
3214                 if (chanctx_conf) {
3215                         need_offchan = params->chan &&
3216                                        (params->chan !=
3217                                         chanctx_conf->def.chan);
3218                 } else if (!params->chan) {
3219                         ret = -EINVAL;
3220                         rcu_read_unlock();
3221                         goto out_unlock;
3222                 } else {
3223                         need_offchan = true;
3224                 }
3225                 rcu_read_unlock();
3226         }
3227
3228         if (need_offchan && !params->offchan) {
3229                 ret = -EBUSY;
3230                 goto out_unlock;
3231         }
3232
3233         skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3234         if (!skb) {
3235                 ret = -ENOMEM;
3236                 goto out_unlock;
3237         }
3238         skb_reserve(skb, local->hw.extra_tx_headroom);
3239
3240         data = skb_put(skb, params->len);
3241         memcpy(data, params->buf, params->len);
3242
3243         /* Update CSA counters */
3244         if (sdata->vif.csa_active &&
3245             (sdata->vif.type == NL80211_IFTYPE_AP ||
3246              sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3247             params->n_csa_offsets) {
3248                 int i;
3249                 struct beacon_data *beacon = NULL;
3250
3251                 rcu_read_lock();
3252
3253                 if (sdata->vif.type == NL80211_IFTYPE_AP)
3254                         beacon = rcu_dereference(sdata->u.ap.beacon);
3255                 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3256                         beacon = rcu_dereference(sdata->u.ibss.presp);
3257                 else if (ieee80211_vif_is_mesh(&sdata->vif))
3258                         beacon = rcu_dereference(sdata->u.mesh.beacon);
3259
3260                 if (beacon)
3261                         for (i = 0; i < params->n_csa_offsets; i++)
3262                                 data[params->csa_offsets[i]] =
3263                                         beacon->csa_current_counter;
3264
3265                 rcu_read_unlock();
3266         }
3267
3268         IEEE80211_SKB_CB(skb)->flags = flags;
3269
3270         skb->dev = sdata->dev;
3271
3272         if (!need_offchan) {
3273                 *cookie = (unsigned long) skb;
3274                 ieee80211_tx_skb(sdata, skb);
3275                 ret = 0;
3276                 goto out_unlock;
3277         }
3278
3279         IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3280                                         IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3281         if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3282                 IEEE80211_SKB_CB(skb)->hw_queue =
3283                         local->hw.offchannel_tx_hw_queue;
3284
3285         /* This will handle all kinds of coalescing and immediate TX */
3286         ret = ieee80211_start_roc_work(local, sdata, params->chan,
3287                                        params->wait, cookie, skb,
3288                                        IEEE80211_ROC_TYPE_MGMT_TX);
3289         if (ret)
3290                 kfree_skb(skb);
3291  out_unlock:
3292         mutex_unlock(&local->mtx);
3293         return ret;
3294 }
3295
3296 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3297                                          struct wireless_dev *wdev,
3298                                          u64 cookie)
3299 {
3300         struct ieee80211_local *local = wiphy_priv(wiphy);
3301
3302         return ieee80211_cancel_roc(local, cookie, true);
3303 }
3304
3305 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3306                                           struct wireless_dev *wdev,
3307                                           u16 frame_type, bool reg)
3308 {
3309         struct ieee80211_local *local = wiphy_priv(wiphy);
3310
3311         switch (frame_type) {
3312         case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3313                 if (reg)
3314                         local->probe_req_reg++;
3315                 else
3316                         local->probe_req_reg--;
3317
3318                 if (!local->open_count)
3319                         break;
3320
3321                 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3322                 break;
3323         default:
3324                 break;
3325         }
3326 }
3327
3328 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3329 {
3330         struct ieee80211_local *local = wiphy_priv(wiphy);
3331
3332         if (local->started)
3333                 return -EOPNOTSUPP;
3334
3335         return drv_set_antenna(local, tx_ant, rx_ant);
3336 }
3337
3338 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3339 {
3340         struct ieee80211_local *local = wiphy_priv(wiphy);
3341
3342         return drv_get_antenna(local, tx_ant, rx_ant);
3343 }
3344
3345 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3346                                     struct net_device *dev,
3347                                     struct cfg80211_gtk_rekey_data *data)
3348 {
3349         struct ieee80211_local *local = wiphy_priv(wiphy);
3350         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3351
3352         if (!local->ops->set_rekey_data)
3353                 return -EOPNOTSUPP;
3354
3355         drv_set_rekey_data(local, sdata, data);
3356
3357         return 0;
3358 }
3359
3360 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3361                                   const u8 *peer, u64 *cookie)
3362 {
3363         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3364         struct ieee80211_local *local = sdata->local;
3365         struct ieee80211_qos_hdr *nullfunc;
3366         struct sk_buff *skb;
3367         int size = sizeof(*nullfunc);
3368         __le16 fc;
3369         bool qos;
3370         struct ieee80211_tx_info *info;
3371         struct sta_info *sta;
3372         struct ieee80211_chanctx_conf *chanctx_conf;
3373         enum ieee80211_band band;
3374
3375         rcu_read_lock();
3376         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3377         if (WARN_ON(!chanctx_conf)) {
3378                 rcu_read_unlock();
3379                 return -EINVAL;
3380         }
3381         band = chanctx_conf->def.chan->band;
3382         sta = sta_info_get_bss(sdata, peer);
3383         if (sta) {
3384                 qos = sta->sta.wme;
3385         } else {
3386                 rcu_read_unlock();
3387                 return -ENOLINK;
3388         }
3389
3390         if (qos) {
3391                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3392                                  IEEE80211_STYPE_QOS_NULLFUNC |
3393                                  IEEE80211_FCTL_FROMDS);
3394         } else {
3395                 size -= 2;
3396                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3397                                  IEEE80211_STYPE_NULLFUNC |
3398                                  IEEE80211_FCTL_FROMDS);
3399         }
3400
3401         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3402         if (!skb) {
3403                 rcu_read_unlock();
3404                 return -ENOMEM;
3405         }
3406
3407         skb->dev = dev;
3408
3409         skb_reserve(skb, local->hw.extra_tx_headroom);
3410
3411         nullfunc = (void *) skb_put(skb, size);
3412         nullfunc->frame_control = fc;
3413         nullfunc->duration_id = 0;
3414         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3415         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3416         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3417         nullfunc->seq_ctrl = 0;
3418
3419         info = IEEE80211_SKB_CB(skb);
3420
3421         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3422                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3423
3424         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3425         skb->priority = 7;
3426         if (qos)
3427                 nullfunc->qos_ctrl = cpu_to_le16(7);
3428
3429         local_bh_disable();
3430         ieee80211_xmit(sdata, skb, band);
3431         local_bh_enable();
3432         rcu_read_unlock();
3433
3434         *cookie = (unsigned long) skb;
3435         return 0;
3436 }
3437
3438 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3439                                      struct wireless_dev *wdev,
3440                                      struct cfg80211_chan_def *chandef)
3441 {
3442         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3443         struct ieee80211_local *local = wiphy_priv(wiphy);
3444         struct ieee80211_chanctx_conf *chanctx_conf;
3445         int ret = -ENODATA;
3446
3447         rcu_read_lock();
3448         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3449         if (chanctx_conf) {
3450                 *chandef = chanctx_conf->def;
3451                 ret = 0;
3452         } else if (local->open_count > 0 &&
3453                    local->open_count == local->monitors &&
3454                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3455                 if (local->use_chanctx)
3456                         *chandef = local->monitor_chandef;
3457                 else
3458                         *chandef = local->_oper_chandef;
3459                 ret = 0;
3460         }
3461         rcu_read_unlock();
3462
3463         return ret;
3464 }
3465
3466 #ifdef CONFIG_PM
3467 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3468 {
3469         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3470 }
3471 #endif
3472
3473 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3474                                  struct net_device *dev,
3475                                  struct cfg80211_qos_map *qos_map)
3476 {
3477         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3478         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3479
3480         if (qos_map) {
3481                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3482                 if (!new_qos_map)
3483                         return -ENOMEM;
3484                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3485         } else {
3486                 /* A NULL qos_map was passed to disable QoS mapping */
3487                 new_qos_map = NULL;
3488         }
3489
3490         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3491         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3492         if (old_qos_map)
3493                 kfree_rcu(old_qos_map, rcu_head);
3494
3495         return 0;
3496 }
3497
3498 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3499                                       struct net_device *dev,
3500                                       struct cfg80211_chan_def *chandef)
3501 {
3502         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3503         int ret;
3504         u32 changed = 0;
3505
3506         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3507         if (ret == 0)
3508                 ieee80211_bss_info_change_notify(sdata, changed);
3509
3510         return ret;
3511 }
3512
3513 const struct cfg80211_ops mac80211_config_ops = {
3514         .add_virtual_intf = ieee80211_add_iface,
3515         .del_virtual_intf = ieee80211_del_iface,
3516         .change_virtual_intf = ieee80211_change_iface,
3517         .start_p2p_device = ieee80211_start_p2p_device,
3518         .stop_p2p_device = ieee80211_stop_p2p_device,
3519         .add_key = ieee80211_add_key,
3520         .del_key = ieee80211_del_key,
3521         .get_key = ieee80211_get_key,
3522         .set_default_key = ieee80211_config_default_key,
3523         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3524         .start_ap = ieee80211_start_ap,
3525         .change_beacon = ieee80211_change_beacon,
3526         .stop_ap = ieee80211_stop_ap,
3527         .add_station = ieee80211_add_station,
3528         .del_station = ieee80211_del_station,
3529         .change_station = ieee80211_change_station,
3530         .get_station = ieee80211_get_station,
3531         .dump_station = ieee80211_dump_station,
3532         .dump_survey = ieee80211_dump_survey,
3533 #ifdef CONFIG_MAC80211_MESH
3534         .add_mpath = ieee80211_add_mpath,
3535         .del_mpath = ieee80211_del_mpath,
3536         .change_mpath = ieee80211_change_mpath,
3537         .get_mpath = ieee80211_get_mpath,
3538         .dump_mpath = ieee80211_dump_mpath,
3539         .update_mesh_config = ieee80211_update_mesh_config,
3540         .get_mesh_config = ieee80211_get_mesh_config,
3541         .join_mesh = ieee80211_join_mesh,
3542         .leave_mesh = ieee80211_leave_mesh,
3543 #endif
3544         .change_bss = ieee80211_change_bss,
3545         .set_txq_params = ieee80211_set_txq_params,
3546         .set_monitor_channel = ieee80211_set_monitor_channel,
3547         .suspend = ieee80211_suspend,
3548         .resume = ieee80211_resume,
3549         .scan = ieee80211_scan,
3550         .sched_scan_start = ieee80211_sched_scan_start,
3551         .sched_scan_stop = ieee80211_sched_scan_stop,
3552         .auth = ieee80211_auth,
3553         .assoc = ieee80211_assoc,
3554         .deauth = ieee80211_deauth,
3555         .disassoc = ieee80211_disassoc,
3556         .join_ibss = ieee80211_join_ibss,
3557         .leave_ibss = ieee80211_leave_ibss,
3558         .set_mcast_rate = ieee80211_set_mcast_rate,
3559         .set_wiphy_params = ieee80211_set_wiphy_params,
3560         .set_tx_power = ieee80211_set_tx_power,
3561         .get_tx_power = ieee80211_get_tx_power,
3562         .set_wds_peer = ieee80211_set_wds_peer,
3563         .rfkill_poll = ieee80211_rfkill_poll,
3564         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3565         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3566         .set_power_mgmt = ieee80211_set_power_mgmt,
3567         .set_bitrate_mask = ieee80211_set_bitrate_mask,
3568         .remain_on_channel = ieee80211_remain_on_channel,
3569         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3570         .mgmt_tx = ieee80211_mgmt_tx,
3571         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3572         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3573         .mgmt_frame_register = ieee80211_mgmt_frame_register,
3574         .set_antenna = ieee80211_set_antenna,
3575         .get_antenna = ieee80211_get_antenna,
3576         .set_rekey_data = ieee80211_set_rekey_data,
3577         .tdls_oper = ieee80211_tdls_oper,
3578         .tdls_mgmt = ieee80211_tdls_mgmt,
3579         .probe_client = ieee80211_probe_client,
3580         .set_noack_map = ieee80211_set_noack_map,
3581 #ifdef CONFIG_PM
3582         .set_wakeup = ieee80211_set_wakeup,
3583 #endif
3584         .get_channel = ieee80211_cfg_get_channel,
3585         .start_radar_detection = ieee80211_start_radar_detection,
3586         .channel_switch = ieee80211_channel_switch,
3587         .set_qos_map = ieee80211_set_qos_map,
3588         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3589 };