net/mac80211/cfg.c

   1 /*
   2  * mac80211 configuration hooks for cfg80211
   3  *
   4  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   5  *
   6  * This file is GPLv2 as found in COPYING.
   7  */
   8
   9 #include <linux/ieee80211.h>
  10 #include <linux/nl80211.h>
  11 #include <linux/rtnetlink.h>
  12 #include <linux/slab.h>
  13 #include <net/net_namespace.h>
  14 #include <linux/rcupdate.h>
  15 #include <net/cfg80211.h>
  16 #include "ieee80211_i.h"
  17 #include "driver-ops.h"
  18 #include "cfg.h"
  19 #include "rate.h"
  20 #include "mesh.h"
  21
  22 static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name,
  23                                               enum nl80211_iftype type,
  24                                               u32 *flags,
  25                                               struct vif_params *params)
  26 {
  27         struct ieee80211_local *local = wiphy_priv(wiphy);
  28         struct net_device *dev;
  29         struct ieee80211_sub_if_data *sdata;
  30         int err;
  31
  32         err = ieee80211_if_add(local, name, &dev, type, params);
  33         if (err)
  34                 return ERR_PTR(err);
  35
  36         if (type == NL80211_IFTYPE_MONITOR && flags) {
  37                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  38                 sdata->u.mntr_flags = *flags;
  39         }
  40
  41         return dev;
  42 }
  43
  44 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
  45 {
  46         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
  47
  48         return 0;
  49 }
  50
  51 static int ieee80211_change_iface(struct wiphy *wiphy,
  52                                   struct net_device *dev,
  53                                   enum nl80211_iftype type, u32 *flags,
  54                                   struct vif_params *params)
  55 {
  56         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  57         int ret;
  58
  59         ret = ieee80211_if_change_type(sdata, type);
  60         if (ret)
  61                 return ret;
  62
  63         if (type == NL80211_IFTYPE_AP_VLAN &&
  64             params && params->use_4addr == 0)
  65                 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
  66         else if (type == NL80211_IFTYPE_STATION &&
  67                  params && params->use_4addr >= 0)
  68                 sdata->u.mgd.use_4addr = params->use_4addr;
  69
  70         if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
  71                 struct ieee80211_local *local = sdata->local;
  72
  73                 if (ieee80211_sdata_running(sdata)) {
  74                         /*
  75                          * Prohibit MONITOR_FLAG_COOK_FRAMES to be
  76                          * changed while the interface is up.
  77                          * Else we would need to add a lot of cruft
  78                          * to update everything:
  79                          *      cooked_mntrs, monitor and all fif_* counters
  80                          *      reconfigure hardware
  81                          */
  82                         if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
  83                             (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
  84                                 return -EBUSY;
  85
  86                         ieee80211_adjust_monitor_flags(sdata, -1);
  87                         sdata->u.mntr_flags = *flags;
  88                         ieee80211_adjust_monitor_flags(sdata, 1);
  89
  90                         ieee80211_configure_filter(local);
  91                 } else {
  92                         /*
  93                          * Because the interface is down, ieee80211_do_stop
  94                          * and ieee80211_do_open take care of "everything"
  95                          * mentioned in the comment above.
  96                          */
  97                         sdata->u.mntr_flags = *flags;
  98                 }
  99         }
 100
 101         return 0;
 102 }
 103
 104 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 105                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 106                              struct key_params *params)
 107 {
 108         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 109         struct sta_info *sta = NULL;
 110         struct ieee80211_key *key;
 111         int err;
 112
 113         if (!ieee80211_sdata_running(sdata))
 114                 return -ENETDOWN;
 115
 116         /* reject WEP and TKIP keys if WEP failed to initialize */
 117         switch (params->cipher) {
 118         case WLAN_CIPHER_SUITE_WEP40:
 119         case WLAN_CIPHER_SUITE_TKIP:
 120         case WLAN_CIPHER_SUITE_WEP104:
 121                 if (IS_ERR(sdata->local->wep_tx_tfm))
 122                         return -EINVAL;
 123                 break;
 124         default:
 125                 break;
 126         }
 127
 128         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 129                                   params->key, params->seq_len, params->seq);
 130         if (IS_ERR(key))
 131                 return PTR_ERR(key);
 132
 133         if (pairwise)
 134                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 135
 136         mutex_lock(&sdata->local->sta_mtx);
 137
 138         if (mac_addr) {
 139                 sta = sta_info_get_bss(sdata, mac_addr);
 140                 if (!sta) {
 141                         ieee80211_key_free(sdata->local, key);
 142                         err = -ENOENT;
 143                         goto out_unlock;
 144                 }
 145         }
 146
 147         err = ieee80211_key_link(key, sdata, sta);
 148         if (err)
 149                 ieee80211_key_free(sdata->local, key);
 150
 151  out_unlock:
 152         mutex_unlock(&sdata->local->sta_mtx);
 153
 154         return err;
 155 }
 156
 157 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 158                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 159 {
 160         struct ieee80211_sub_if_data *sdata;
 161         struct sta_info *sta;
 162         int ret;
 163
 164         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 165
 166         mutex_lock(&sdata->local->sta_mtx);
 167
 168         if (mac_addr) {
 169                 ret = -ENOENT;
 170
 171                 sta = sta_info_get_bss(sdata, mac_addr);
 172                 if (!sta)
 173                         goto out_unlock;
 174
 175                 if (pairwise) {
 176                         if (sta->ptk) {
 177                                 ieee80211_key_free(sdata->local, sta->ptk);
 178                                 ret = 0;
 179                         }
 180                 } else {
 181                         if (sta->gtk[key_idx]) {
 182                                 ieee80211_key_free(sdata->local,
 183                                                    sta->gtk[key_idx]);
 184                                 ret = 0;
 185                         }
 186                 }
 187
 188                 goto out_unlock;
 189         }
 190
 191         if (!sdata->keys[key_idx]) {
 192                 ret = -ENOENT;
 193                 goto out_unlock;
 194         }
 195
 196         ieee80211_key_free(sdata->local, sdata->keys[key_idx]);
 197         WARN_ON(sdata->keys[key_idx]);
 198
 199         ret = 0;
 200  out_unlock:
 201         mutex_unlock(&sdata->local->sta_mtx);
 202
 203         return ret;
 204 }
 205
 206 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 207                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 208                              void *cookie,
 209                              void (*callback)(void *cookie,
 210                                               struct key_params *params))
 211 {
 212         struct ieee80211_sub_if_data *sdata;
 213         struct sta_info *sta = NULL;
 214         u8 seq[6] = {0};
 215         struct key_params params;
 216         struct ieee80211_key *key = NULL;
 217         u32 iv32;
 218         u16 iv16;
 219         int err = -ENOENT;
 220
 221         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 222
 223         rcu_read_lock();
 224
 225         if (mac_addr) {
 226                 sta = sta_info_get_bss(sdata, mac_addr);
 227                 if (!sta)
 228                         goto out;
 229
 230                 if (pairwise)
 231                         key = sta->ptk;
 232                 else if (key_idx < NUM_DEFAULT_KEYS)
 233                         key = sta->gtk[key_idx];
 234         } else
 235                 key = sdata->keys[key_idx];
 236
 237         if (!key)
 238                 goto out;
 239
 240         memset(&params, 0, sizeof(params));
 241
 242         params.cipher = key->conf.cipher;
 243
 244         switch (key->conf.cipher) {
 245         case WLAN_CIPHER_SUITE_TKIP:
 246                 iv32 = key->u.tkip.tx.iv32;
 247                 iv16 = key->u.tkip.tx.iv16;
 248
 249                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 250                         drv_get_tkip_seq(sdata->local,
 251                                          key->conf.hw_key_idx,
 252                                          &iv32, &iv16);
 253
 254                 seq[0] = iv16 & 0xff;
 255                 seq[1] = (iv16 >> 8) & 0xff;
 256                 seq[2] = iv32 & 0xff;
 257                 seq[3] = (iv32 >> 8) & 0xff;
 258                 seq[4] = (iv32 >> 16) & 0xff;
 259                 seq[5] = (iv32 >> 24) & 0xff;
 260                 params.seq = seq;
 261                 params.seq_len = 6;
 262                 break;
 263         case WLAN_CIPHER_SUITE_CCMP:
 264                 seq[0] = key->u.ccmp.tx_pn[5];
 265                 seq[1] = key->u.ccmp.tx_pn[4];
 266                 seq[2] = key->u.ccmp.tx_pn[3];
 267                 seq[3] = key->u.ccmp.tx_pn[2];
 268                 seq[4] = key->u.ccmp.tx_pn[1];
 269                 seq[5] = key->u.ccmp.tx_pn[0];
 270                 params.seq = seq;
 271                 params.seq_len = 6;
 272                 break;
 273         case WLAN_CIPHER_SUITE_AES_CMAC:
 274                 seq[0] = key->u.aes_cmac.tx_pn[5];
 275                 seq[1] = key->u.aes_cmac.tx_pn[4];
 276                 seq[2] = key->u.aes_cmac.tx_pn[3];
 277                 seq[3] = key->u.aes_cmac.tx_pn[2];
 278                 seq[4] = key->u.aes_cmac.tx_pn[1];
 279                 seq[5] = key->u.aes_cmac.tx_pn[0];
 280                 params.seq = seq;
 281                 params.seq_len = 6;
 282                 break;
 283         }
 284
 285         params.key = key->conf.key;
 286         params.key_len = key->conf.keylen;
 287
 288         callback(cookie, &params);
 289         err = 0;
 290
 291  out:
 292         rcu_read_unlock();
 293         return err;
 294 }
 295
 296 static int ieee80211_config_default_key(struct wiphy *wiphy,
 297                                         struct net_device *dev,
 298                                         u8 key_idx, bool uni,
 299                                         bool multi)
 300 {
 301         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 302
 303         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 304
 305         return 0;
 306 }
 307
 308 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 309                                              struct net_device *dev,
 310                                              u8 key_idx)
 311 {
 312         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 313
 314         ieee80211_set_default_mgmt_key(sdata, key_idx);
 315
 316         return 0;
 317 }
 318
 319 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 320 {
 321         struct ieee80211_sub_if_data *sdata = sta->sdata;
 322
 323         sinfo->generation = sdata->local->sta_generation;
 324
 325         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 326                         STATION_INFO_RX_BYTES |
 327                         STATION_INFO_TX_BYTES |
 328                         STATION_INFO_RX_PACKETS |
 329                         STATION_INFO_TX_PACKETS |
 330                         STATION_INFO_TX_RETRIES |
 331                         STATION_INFO_TX_FAILED |
 332                         STATION_INFO_TX_BITRATE |
 333                         STATION_INFO_RX_DROP_MISC;
 334
 335         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 336         sinfo->rx_bytes = sta->rx_bytes;
 337         sinfo->tx_bytes = sta->tx_bytes;
 338         sinfo->rx_packets = sta->rx_packets;
 339         sinfo->tx_packets = sta->tx_packets;
 340         sinfo->tx_retries = sta->tx_retry_count;
 341         sinfo->tx_failed = sta->tx_retry_failed;
 342         sinfo->rx_dropped_misc = sta->rx_dropped;
 343
 344         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 345             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 346                 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 347                 sinfo->signal = (s8)sta->last_signal;
 348                 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
 349         }
 350
 351         sinfo->txrate.flags = 0;
 352         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 353                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 354         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 355                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 356         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 357                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 358
 359         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 360                 struct ieee80211_supported_band *sband;
 361                 sband = sta->local->hw.wiphy->bands[
 362                                 sta->local->hw.conf.channel->band];
 363                 sinfo->txrate.legacy =
 364                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 365         } else
 366                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 367
 368         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 369 #ifdef CONFIG_MAC80211_MESH
 370                 sinfo->filled |= STATION_INFO_LLID |
 371                                  STATION_INFO_PLID |
 372                                  STATION_INFO_PLINK_STATE;
 373
 374                 sinfo->llid = le16_to_cpu(sta->llid);
 375                 sinfo->plid = le16_to_cpu(sta->plid);
 376                 sinfo->plink_state = sta->plink_state;
 377 #endif
 378         }
 379 }
 380
 381
 382 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 383                                  int idx, u8 *mac, struct station_info *sinfo)
 384 {
 385         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 386         struct sta_info *sta;
 387         int ret = -ENOENT;
 388
 389         rcu_read_lock();
 390
 391         sta = sta_info_get_by_idx(sdata, idx);
 392         if (sta) {
 393                 ret = 0;
 394                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 395                 sta_set_sinfo(sta, sinfo);
 396         }
 397
 398         rcu_read_unlock();
 399
 400         return ret;
 401 }
 402
 403 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 404                                  int idx, struct survey_info *survey)
 405 {
 406         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 407
 408         return drv_get_survey(local, idx, survey);
 409 }
 410
 411 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 412                                  u8 *mac, struct station_info *sinfo)
 413 {
 414         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 415         struct sta_info *sta;
 416         int ret = -ENOENT;
 417
 418         rcu_read_lock();
 419
 420         sta = sta_info_get_bss(sdata, mac);
 421         if (sta) {
 422                 ret = 0;
 423                 sta_set_sinfo(sta, sinfo);
 424         }
 425
 426         rcu_read_unlock();
 427
 428         return ret;
 429 }
 430
 431 /*
 432  * This handles both adding a beacon and setting new beacon info
 433  */
 434 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 435                                    struct beacon_parameters *params)
 436 {
 437         struct beacon_data *new, *old;
 438         int new_head_len, new_tail_len;
 439         int size;
 440         int err = -EINVAL;
 441
 442         old = sdata->u.ap.beacon;
 443
 444         /* head must not be zero-length */
 445         if (params->head && !params->head_len)
 446                 return -EINVAL;
 447
 448         /*
 449          * This is a kludge. beacon interval should really be part
 450          * of the beacon information.
 451          */
 452         if (params->interval &&
 453             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 454                 sdata->vif.bss_conf.beacon_int = params->interval;
 455                 ieee80211_bss_info_change_notify(sdata,
 456                                                  BSS_CHANGED_BEACON_INT);
 457         }
 458
 459         /* Need to have a beacon head if we don't have one yet */
 460         if (!params->head && !old)
 461                 return err;
 462
 463         /* sorry, no way to start beaconing without dtim period */
 464         if (!params->dtim_period && !old)
 465                 return err;
 466
 467         /* new or old head? */
 468         if (params->head)
 469                 new_head_len = params->head_len;
 470         else
 471                 new_head_len = old->head_len;
 472
 473         /* new or old tail? */
 474         if (params->tail || !old)
 475                 /* params->tail_len will be zero for !params->tail */
 476                 new_tail_len = params->tail_len;
 477         else
 478                 new_tail_len = old->tail_len;
 479
 480         size = sizeof(*new) + new_head_len + new_tail_len;
 481
 482         new = kzalloc(size, GFP_KERNEL);
 483         if (!new)
 484                 return -ENOMEM;
 485
 486         /* start filling the new info now */
 487
 488         /* new or old dtim period? */
 489         if (params->dtim_period)
 490                 new->dtim_period = params->dtim_period;
 491         else
 492                 new->dtim_period = old->dtim_period;
 493
 494         /*
 495          * pointers go into the block we allocated,
 496          * memory is | beacon_data | head | tail |
 497          */
 498         new->head = ((u8 *) new) + sizeof(*new);
 499         new->tail = new->head + new_head_len;
 500         new->head_len = new_head_len;
 501         new->tail_len = new_tail_len;
 502
 503         /* copy in head */
 504         if (params->head)
 505                 memcpy(new->head, params->head, new_head_len);
 506         else
 507                 memcpy(new->head, old->head, new_head_len);
 508
 509         /* copy in optional tail */
 510         if (params->tail)
 511                 memcpy(new->tail, params->tail, new_tail_len);
 512         else
 513                 if (old)
 514                         memcpy(new->tail, old->tail, new_tail_len);
 515
 516         sdata->vif.bss_conf.dtim_period = new->dtim_period;
 517
 518         rcu_assign_pointer(sdata->u.ap.beacon, new);
 519
 520         synchronize_rcu();
 521
 522         kfree(old);
 523
 524         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 525                                                 BSS_CHANGED_BEACON);
 526         return 0;
 527 }
 528
 529 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 530                                 struct beacon_parameters *params)
 531 {
 532         struct ieee80211_sub_if_data *sdata;
 533         struct beacon_data *old;
 534
 535         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 536
 537         old = sdata->u.ap.beacon;
 538
 539         if (old)
 540                 return -EALREADY;
 541
 542         return ieee80211_config_beacon(sdata, params);
 543 }
 544
 545 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 546                                 struct beacon_parameters *params)
 547 {
 548         struct ieee80211_sub_if_data *sdata;
 549         struct beacon_data *old;
 550
 551         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 552
 553         old = sdata->u.ap.beacon;
 554
 555         if (!old)
 556                 return -ENOENT;
 557
 558         return ieee80211_config_beacon(sdata, params);
 559 }
 560
 561 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 562 {
 563         struct ieee80211_sub_if_data *sdata;
 564         struct beacon_data *old;
 565
 566         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 567
 568         old = sdata->u.ap.beacon;
 569
 570         if (!old)
 571                 return -ENOENT;
 572
 573         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 574         synchronize_rcu();
 575         kfree(old);
 576
 577         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 578         return 0;
 579 }
 580
 581 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 582 struct iapp_layer2_update {
 583         u8 da[ETH_ALEN];        /* broadcast */
 584         u8 sa[ETH_ALEN];        /* STA addr */
 585         __be16 len;             /* 6 */
 586         u8 dsap;                /* 0 */
 587         u8 ssap;                /* 0 */
 588         u8 control;
 589         u8 xid_info[3];
 590 } __packed;
 591
 592 static void ieee80211_send_layer2_update(struct sta_info *sta)
 593 {
 594         struct iapp_layer2_update *msg;
 595         struct sk_buff *skb;
 596
 597         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 598          * bridge devices */
 599
 600         skb = dev_alloc_skb(sizeof(*msg));
 601         if (!skb)
 602                 return;
 603         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 604
 605         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 606          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 607
 608         memset(msg->da, 0xff, ETH_ALEN);
 609         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 610         msg->len = htons(6);
 611         msg->dsap = 0;
 612         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 613         msg->control = 0xaf;    /* XID response lsb.1111F101.
 614                                  * F=0 (no poll command; unsolicited frame) */
 615         msg->xid_info[0] = 0x81;        /* XID format identifier */
 616         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 617         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 618
 619         skb->dev = sta->sdata->dev;
 620         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 621         memset(skb->cb, 0, sizeof(skb->cb));
 622         netif_rx_ni(skb);
 623 }
 624
 625 static void sta_apply_parameters(struct ieee80211_local *local,
 626                                  struct sta_info *sta,
 627                                  struct station_parameters *params)
 628 {
 629         unsigned long flags;
 630         u32 rates;
 631         int i, j;
 632         struct ieee80211_supported_band *sband;
 633         struct ieee80211_sub_if_data *sdata = sta->sdata;
 634         u32 mask, set;
 635
 636         sband = local->hw.wiphy->bands[local->oper_channel->band];
 637
 638         spin_lock_irqsave(&sta->flaglock, flags);
 639         mask = params->sta_flags_mask;
 640         set = params->sta_flags_set;
 641
 642         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 643                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 644                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 645                         sta->flags |= WLAN_STA_AUTHORIZED;
 646         }
 647
 648         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 649                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 650                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 651                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 652         }
 653
 654         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 655                 sta->flags &= ~WLAN_STA_WME;
 656                 if (set & BIT(NL80211_STA_FLAG_WME))
 657                         sta->flags |= WLAN_STA_WME;
 658         }
 659
 660         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 661                 sta->flags &= ~WLAN_STA_MFP;
 662                 if (set & BIT(NL80211_STA_FLAG_MFP))
 663                         sta->flags |= WLAN_STA_MFP;
 664         }
 665         spin_unlock_irqrestore(&sta->flaglock, flags);
 666
 667         /*
 668          * cfg80211 validates this (1-2007) and allows setting the AID
 669          * only when creating a new station entry
 670          */
 671         if (params->aid)
 672                 sta->sta.aid = params->aid;
 673
 674         /*
 675          * FIXME: updating the following information is racy when this
 676          *        function is called from ieee80211_change_station().
 677          *        However, all this information should be static so
 678          *        maybe we should just reject attemps to change it.
 679          */
 680
 681         if (params->listen_interval >= 0)
 682                 sta->listen_interval = params->listen_interval;
 683
 684         if (params->supported_rates) {
 685                 rates = 0;
 686
 687                 for (i = 0; i < params->supported_rates_len; i++) {
 688                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 689                         for (j = 0; j < sband->n_bitrates; j++) {
 690                                 if (sband->bitrates[j].bitrate == rate)
 691                                         rates |= BIT(j);
 692                         }
 693                 }
 694                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 695         }
 696
 697         if (params->ht_capa)
 698                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 699                                                   params->ht_capa,
 700                                                   &sta->sta.ht_cap);
 701
 702         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 703                 switch (params->plink_action) {
 704                 case PLINK_ACTION_OPEN:
 705                         mesh_plink_open(sta);
 706                         break;
 707                 case PLINK_ACTION_BLOCK:
 708                         mesh_plink_block(sta);
 709                         break;
 710                 }
 711         }
 712 }
 713
 714 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 715                                  u8 *mac, struct station_parameters *params)
 716 {
 717         struct ieee80211_local *local = wiphy_priv(wiphy);
 718         struct sta_info *sta;
 719         struct ieee80211_sub_if_data *sdata;
 720         int err;
 721         int layer2_update;
 722
 723         if (params->vlan) {
 724                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 725
 726                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 727                     sdata->vif.type != NL80211_IFTYPE_AP)
 728                         return -EINVAL;
 729         } else
 730                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 731
 732         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
 733                 return -EINVAL;
 734
 735         if (is_multicast_ether_addr(mac))
 736                 return -EINVAL;
 737
 738         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 739         if (!sta)
 740                 return -ENOMEM;
 741
 742         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 743
 744         sta_apply_parameters(local, sta, params);
 745
 746         rate_control_rate_init(sta);
 747
 748         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 749                 sdata->vif.type == NL80211_IFTYPE_AP;
 750
 751         err = sta_info_insert_rcu(sta);
 752         if (err) {
 753                 rcu_read_unlock();
 754                 return err;
 755         }
 756
 757         if (layer2_update)
 758                 ieee80211_send_layer2_update(sta);
 759
 760         rcu_read_unlock();
 761
 762         return 0;
 763 }
 764
 765 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 766                                  u8 *mac)
 767 {
 768         struct ieee80211_local *local = wiphy_priv(wiphy);
 769         struct ieee80211_sub_if_data *sdata;
 770
 771         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 772
 773         if (mac)
 774                 return sta_info_destroy_addr_bss(sdata, mac);
 775
 776         sta_info_flush(local, sdata);
 777         return 0;
 778 }
 779
 780 static int ieee80211_change_station(struct wiphy *wiphy,
 781                                     struct net_device *dev,
 782                                     u8 *mac,
 783                                     struct station_parameters *params)
 784 {
 785         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 786         struct ieee80211_local *local = wiphy_priv(wiphy);
 787         struct sta_info *sta;
 788         struct ieee80211_sub_if_data *vlansdata;
 789
 790         rcu_read_lock();
 791
 792         sta = sta_info_get_bss(sdata, mac);
 793         if (!sta) {
 794                 rcu_read_unlock();
 795                 return -ENOENT;
 796         }
 797
 798         if (params->vlan && params->vlan != sta->sdata->dev) {
 799                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 800
 801                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 802                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 803                         rcu_read_unlock();
 804                         return -EINVAL;
 805                 }
 806
 807                 if (params->vlan->ieee80211_ptr->use_4addr) {
 808                         if (vlansdata->u.vlan.sta) {
 809                                 rcu_read_unlock();
 810                                 return -EBUSY;
 811                         }
 812
 813                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 814                 }
 815
 816                 sta->sdata = vlansdata;
 817                 ieee80211_send_layer2_update(sta);
 818         }
 819
 820         sta_apply_parameters(local, sta, params);
 821
 822         rcu_read_unlock();
 823
 824         return 0;
 825 }
 826
 827 #ifdef CONFIG_MAC80211_MESH
 828 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 829                                  u8 *dst, u8 *next_hop)
 830 {
 831         struct ieee80211_sub_if_data *sdata;
 832         struct mesh_path *mpath;
 833         struct sta_info *sta;
 834         int err;
 835
 836         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 837
 838         rcu_read_lock();
 839         sta = sta_info_get(sdata, next_hop);
 840         if (!sta) {
 841                 rcu_read_unlock();
 842                 return -ENOENT;
 843         }
 844
 845         err = mesh_path_add(dst, sdata);
 846         if (err) {
 847                 rcu_read_unlock();
 848                 return err;
 849         }
 850
 851         mpath = mesh_path_lookup(dst, sdata);
 852         if (!mpath) {
 853                 rcu_read_unlock();
 854                 return -ENXIO;
 855         }
 856         mesh_path_fix_nexthop(mpath, sta);
 857
 858         rcu_read_unlock();
 859         return 0;
 860 }
 861
 862 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 863                                  u8 *dst)
 864 {
 865         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 866
 867         if (dst)
 868                 return mesh_path_del(dst, sdata);
 869
 870         mesh_path_flush(sdata);
 871         return 0;
 872 }
 873
 874 static int ieee80211_change_mpath(struct wiphy *wiphy,
 875                                     struct net_device *dev,
 876                                     u8 *dst, u8 *next_hop)
 877 {
 878         struct ieee80211_sub_if_data *sdata;
 879         struct mesh_path *mpath;
 880         struct sta_info *sta;
 881
 882         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 883
 884         rcu_read_lock();
 885
 886         sta = sta_info_get(sdata, next_hop);
 887         if (!sta) {
 888                 rcu_read_unlock();
 889                 return -ENOENT;
 890         }
 891
 892         mpath = mesh_path_lookup(dst, sdata);
 893         if (!mpath) {
 894                 rcu_read_unlock();
 895                 return -ENOENT;
 896         }
 897
 898         mesh_path_fix_nexthop(mpath, sta);
 899
 900         rcu_read_unlock();
 901         return 0;
 902 }
 903
 904 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 905                             struct mpath_info *pinfo)
 906 {
 907         if (mpath->next_hop)
 908                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 909         else
 910                 memset(next_hop, 0, ETH_ALEN);
 911
 912         pinfo->generation = mesh_paths_generation;
 913
 914         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 915                         MPATH_INFO_SN |
 916                         MPATH_INFO_METRIC |
 917                         MPATH_INFO_EXPTIME |
 918                         MPATH_INFO_DISCOVERY_TIMEOUT |
 919                         MPATH_INFO_DISCOVERY_RETRIES |
 920                         MPATH_INFO_FLAGS;
 921
 922         pinfo->frame_qlen = mpath->frame_queue.qlen;
 923         pinfo->sn = mpath->sn;
 924         pinfo->metric = mpath->metric;
 925         if (time_before(jiffies, mpath->exp_time))
 926                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 927         pinfo->discovery_timeout =
 928                         jiffies_to_msecs(mpath->discovery_timeout);
 929         pinfo->discovery_retries = mpath->discovery_retries;
 930         pinfo->flags = 0;
 931         if (mpath->flags & MESH_PATH_ACTIVE)
 932                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 933         if (mpath->flags & MESH_PATH_RESOLVING)
 934                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 935         if (mpath->flags & MESH_PATH_SN_VALID)
 936                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 937         if (mpath->flags & MESH_PATH_FIXED)
 938                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 939         if (mpath->flags & MESH_PATH_RESOLVING)
 940                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 941
 942         pinfo->flags = mpath->flags;
 943 }
 944
 945 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 946                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 947
 948 {
 949         struct ieee80211_sub_if_data *sdata;
 950         struct mesh_path *mpath;
 951
 952         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 953
 954         rcu_read_lock();
 955         mpath = mesh_path_lookup(dst, sdata);
 956         if (!mpath) {
 957                 rcu_read_unlock();
 958                 return -ENOENT;
 959         }
 960         memcpy(dst, mpath->dst, ETH_ALEN);
 961         mpath_set_pinfo(mpath, next_hop, pinfo);
 962         rcu_read_unlock();
 963         return 0;
 964 }
 965
 966 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 967                                  int idx, u8 *dst, u8 *next_hop,
 968                                  struct mpath_info *pinfo)
 969 {
 970         struct ieee80211_sub_if_data *sdata;
 971         struct mesh_path *mpath;
 972
 973         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 974
 975         rcu_read_lock();
 976         mpath = mesh_path_lookup_by_idx(idx, sdata);
 977         if (!mpath) {
 978                 rcu_read_unlock();
 979                 return -ENOENT;
 980         }
 981         memcpy(dst, mpath->dst, ETH_ALEN);
 982         mpath_set_pinfo(mpath, next_hop, pinfo);
 983         rcu_read_unlock();
 984         return 0;
 985 }
 986
 987 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
 988                                 struct net_device *dev,
 989                                 struct mesh_config *conf)
 990 {
 991         struct ieee80211_sub_if_data *sdata;
 992         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 993
 994         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
 995         return 0;
 996 }
 997
 998 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
 999 {
1000         return (mask >> (parm-1)) & 0x1;
1001 }
1002
1003 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1004                 const struct mesh_setup *setup)
1005 {
1006         u8 *new_ie;
1007         const u8 *old_ie;
1008
1009         /* first allocate the new vendor information element */
1010         new_ie = NULL;
1011         old_ie = ifmsh->vendor_ie;
1012
1013         ifmsh->vendor_ie_len = setup->vendor_ie_len;
1014         if (setup->vendor_ie_len) {
1015                 new_ie = kmemdup(setup->vendor_ie, setup->vendor_ie_len,
1016                                 GFP_KERNEL);
1017                 if (!new_ie)
1018                         return -ENOMEM;
1019         }
1020
1021         /* now copy the rest of the setup parameters */
1022         ifmsh->mesh_id_len = setup->mesh_id_len;
1023         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1024         ifmsh->mesh_pp_id = setup->path_sel_proto;
1025         ifmsh->mesh_pm_id = setup->path_metric;
1026         ifmsh->vendor_ie = new_ie;
1027
1028         kfree(old_ie);
1029
1030         return 0;
1031 }
1032
1033 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1034                                         struct net_device *dev, u32 mask,
1035                                         const struct mesh_config *nconf)
1036 {
1037         struct mesh_config *conf;
1038         struct ieee80211_sub_if_data *sdata;
1039         struct ieee80211_if_mesh *ifmsh;
1040
1041         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1042         ifmsh = &sdata->u.mesh;
1043
1044         /* Set the config options which we are interested in setting */
1045         conf = &(sdata->u.mesh.mshcfg);
1046         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1047                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1048         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1049                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1050         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1051                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1052         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1053                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1054         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1055                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1056         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1057                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1058         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1059                 conf->dot11MeshTTL = nconf->element_ttl;
1060         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1061                 conf->auto_open_plinks = nconf->auto_open_plinks;
1062         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1063                 conf->dot11MeshHWMPmaxPREQretries =
1064                         nconf->dot11MeshHWMPmaxPREQretries;
1065         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1066                 conf->path_refresh_time = nconf->path_refresh_time;
1067         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1068                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1069         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1070                 conf->dot11MeshHWMPactivePathTimeout =
1071                         nconf->dot11MeshHWMPactivePathTimeout;
1072         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1073                 conf->dot11MeshHWMPpreqMinInterval =
1074                         nconf->dot11MeshHWMPpreqMinInterval;
1075         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1076                            mask))
1077                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1078                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1079         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1080                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1081                 ieee80211_mesh_root_setup(ifmsh);
1082         }
1083         return 0;
1084 }
1085
1086 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1087                                const struct mesh_config *conf,
1088                                const struct mesh_setup *setup)
1089 {
1090         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1091         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1092         int err;
1093
1094         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1095         err = copy_mesh_setup(ifmsh, setup);
1096         if (err)
1097                 return err;
1098         ieee80211_start_mesh(sdata);
1099
1100         return 0;
1101 }
1102
1103 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1104 {
1105         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1106
1107         ieee80211_stop_mesh(sdata);
1108
1109         return 0;
1110 }
1111 #endif
1112
1113 static int ieee80211_change_bss(struct wiphy *wiphy,
1114                                 struct net_device *dev,
1115                                 struct bss_parameters *params)
1116 {
1117         struct ieee80211_sub_if_data *sdata;
1118         u32 changed = 0;
1119
1120         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1121
1122         if (params->use_cts_prot >= 0) {
1123                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1124                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1125         }
1126         if (params->use_short_preamble >= 0) {
1127                 sdata->vif.bss_conf.use_short_preamble =
1128                         params->use_short_preamble;
1129                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1130         }
1131
1132         if (!sdata->vif.bss_conf.use_short_slot &&
1133             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1134                 sdata->vif.bss_conf.use_short_slot = true;
1135                 changed |= BSS_CHANGED_ERP_SLOT;
1136         }
1137
1138         if (params->use_short_slot_time >= 0) {
1139                 sdata->vif.bss_conf.use_short_slot =
1140                         params->use_short_slot_time;
1141                 changed |= BSS_CHANGED_ERP_SLOT;
1142         }
1143
1144         if (params->basic_rates) {
1145                 int i, j;
1146                 u32 rates = 0;
1147                 struct ieee80211_local *local = wiphy_priv(wiphy);
1148                 struct ieee80211_supported_band *sband =
1149                         wiphy->bands[local->oper_channel->band];
1150
1151                 for (i = 0; i < params->basic_rates_len; i++) {
1152                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1153                         for (j = 0; j < sband->n_bitrates; j++) {
1154                                 if (sband->bitrates[j].bitrate == rate)
1155                                         rates |= BIT(j);
1156                         }
1157                 }
1158                 sdata->vif.bss_conf.basic_rates = rates;
1159                 changed |= BSS_CHANGED_BASIC_RATES;
1160         }
1161
1162         if (params->ap_isolate >= 0) {
1163                 if (params->ap_isolate)
1164                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1165                 else
1166                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1167         }
1168
1169         if (params->ht_opmode >= 0) {
1170                 sdata->vif.bss_conf.ht_operation_mode =
1171                         (u16) params->ht_opmode;
1172                 changed |= BSS_CHANGED_HT;
1173         }
1174
1175         ieee80211_bss_info_change_notify(sdata, changed);
1176
1177         return 0;
1178 }
1179
1180 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1181                                     struct ieee80211_txq_params *params)
1182 {
1183         struct ieee80211_local *local = wiphy_priv(wiphy);
1184         struct ieee80211_tx_queue_params p;
1185
1186         if (!local->ops->conf_tx)
1187                 return -EOPNOTSUPP;
1188
1189         memset(&p, 0, sizeof(p));
1190         p.aifs = params->aifs;
1191         p.cw_max = params->cwmax;
1192         p.cw_min = params->cwmin;
1193         p.txop = params->txop;
1194
1195         /*
1196          * Setting tx queue params disables u-apsd because it's only
1197          * called in master mode.
1198          */
1199         p.uapsd = false;
1200
1201         if (drv_conf_tx(local, params->queue, &p)) {
1202                 wiphy_debug(local->hw.wiphy,
1203                             "failed to set TX queue parameters for queue %d\n",
1204                             params->queue);
1205                 return -EINVAL;
1206         }
1207
1208         return 0;
1209 }
1210
1211 static int ieee80211_set_channel(struct wiphy *wiphy,
1212                                  struct net_device *netdev,
1213                                  struct ieee80211_channel *chan,
1214                                  enum nl80211_channel_type channel_type)
1215 {
1216         struct ieee80211_local *local = wiphy_priv(wiphy);
1217         struct ieee80211_sub_if_data *sdata = NULL;
1218
1219         if (netdev)
1220                 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1221
1222         switch (ieee80211_get_channel_mode(local, NULL)) {
1223         case CHAN_MODE_HOPPING:
1224                 return -EBUSY;
1225         case CHAN_MODE_FIXED:
1226                 if (local->oper_channel != chan)
1227                         return -EBUSY;
1228                 if (!sdata && local->_oper_channel_type == channel_type)
1229                         return 0;
1230                 break;
1231         case CHAN_MODE_UNDEFINED:
1232                 break;
1233         }
1234
1235         local->oper_channel = chan;
1236
1237         if (!ieee80211_set_channel_type(local, sdata, channel_type))
1238                 return -EBUSY;
1239
1240         ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1241         if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1242                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1243
1244         return 0;
1245 }
1246
1247 #ifdef CONFIG_PM
1248 static int ieee80211_suspend(struct wiphy *wiphy)
1249 {
1250         return __ieee80211_suspend(wiphy_priv(wiphy));
1251 }
1252
1253 static int ieee80211_resume(struct wiphy *wiphy)
1254 {
1255         return __ieee80211_resume(wiphy_priv(wiphy));
1256 }
1257 #else
1258 #define ieee80211_suspend NULL
1259 #define ieee80211_resume NULL
1260 #endif
1261
1262 static int ieee80211_scan(struct wiphy *wiphy,
1263                           struct net_device *dev,
1264                           struct cfg80211_scan_request *req)
1265 {
1266         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1267
1268         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1269         case NL80211_IFTYPE_STATION:
1270         case NL80211_IFTYPE_ADHOC:
1271         case NL80211_IFTYPE_MESH_POINT:
1272         case NL80211_IFTYPE_P2P_CLIENT:
1273                 break;
1274         case NL80211_IFTYPE_P2P_GO:
1275                 if (sdata->local->ops->hw_scan)
1276                         break;
1277                 /* FIXME: implement NoA while scanning in software */
1278                 return -EOPNOTSUPP;
1279         case NL80211_IFTYPE_AP:
1280                 if (sdata->u.ap.beacon)
1281                         return -EOPNOTSUPP;
1282                 break;
1283         default:
1284                 return -EOPNOTSUPP;
1285         }
1286
1287         return ieee80211_request_scan(sdata, req);
1288 }
1289
1290 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1291                           struct cfg80211_auth_request *req)
1292 {
1293         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1294 }
1295
1296 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1297                            struct cfg80211_assoc_request *req)
1298 {
1299         struct ieee80211_local *local = wiphy_priv(wiphy);
1300         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1301
1302         switch (ieee80211_get_channel_mode(local, sdata)) {
1303         case CHAN_MODE_HOPPING:
1304                 return -EBUSY;
1305         case CHAN_MODE_FIXED:
1306                 if (local->oper_channel == req->bss->channel)
1307                         break;
1308                 return -EBUSY;
1309         case CHAN_MODE_UNDEFINED:
1310                 break;
1311         }
1312
1313         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1314 }
1315
1316 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1317                             struct cfg80211_deauth_request *req,
1318                             void *cookie)
1319 {
1320         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1321                                     req, cookie);
1322 }
1323
1324 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1325                               struct cfg80211_disassoc_request *req,
1326                               void *cookie)
1327 {
1328         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1329                                       req, cookie);
1330 }
1331
1332 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1333                                struct cfg80211_ibss_params *params)
1334 {
1335         struct ieee80211_local *local = wiphy_priv(wiphy);
1336         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1337
1338         switch (ieee80211_get_channel_mode(local, sdata)) {
1339         case CHAN_MODE_HOPPING:
1340                 return -EBUSY;
1341         case CHAN_MODE_FIXED:
1342                 if (!params->channel_fixed)
1343                         return -EBUSY;
1344                 if (local->oper_channel == params->channel)
1345                         break;
1346                 return -EBUSY;
1347         case CHAN_MODE_UNDEFINED:
1348                 break;
1349         }
1350
1351         return ieee80211_ibss_join(sdata, params);
1352 }
1353
1354 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1355 {
1356         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1357
1358         return ieee80211_ibss_leave(sdata);
1359 }
1360
1361 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1362 {
1363         struct ieee80211_local *local = wiphy_priv(wiphy);
1364         int err;
1365
1366         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1367                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1368
1369                 if (err)
1370                         return err;
1371         }
1372
1373         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1374                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1375
1376                 if (err)
1377                         return err;
1378         }
1379
1380         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1381                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1382
1383                 if (err)
1384                         return err;
1385         }
1386
1387         if (changed & WIPHY_PARAM_RETRY_SHORT)
1388                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1389         if (changed & WIPHY_PARAM_RETRY_LONG)
1390                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1391         if (changed &
1392             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1393                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1394
1395         return 0;
1396 }
1397
1398 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1399                                   enum nl80211_tx_power_setting type, int mbm)
1400 {
1401         struct ieee80211_local *local = wiphy_priv(wiphy);
1402         struct ieee80211_channel *chan = local->hw.conf.channel;
1403         u32 changes = 0;
1404
1405         switch (type) {
1406         case NL80211_TX_POWER_AUTOMATIC:
1407                 local->user_power_level = -1;
1408                 break;
1409         case NL80211_TX_POWER_LIMITED:
1410                 if (mbm < 0 || (mbm % 100))
1411                         return -EOPNOTSUPP;
1412                 local->user_power_level = MBM_TO_DBM(mbm);
1413                 break;
1414         case NL80211_TX_POWER_FIXED:
1415                 if (mbm < 0 || (mbm % 100))
1416                         return -EOPNOTSUPP;
1417                 /* TODO: move to cfg80211 when it knows the channel */
1418                 if (MBM_TO_DBM(mbm) > chan->max_power)
1419                         return -EINVAL;
1420                 local->user_power_level = MBM_TO_DBM(mbm);
1421                 break;
1422         }
1423
1424         ieee80211_hw_config(local, changes);
1425
1426         return 0;
1427 }
1428
1429 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1430 {
1431         struct ieee80211_local *local = wiphy_priv(wiphy);
1432
1433         *dbm = local->hw.conf.power_level;
1434
1435         return 0;
1436 }
1437
1438 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1439                                   const u8 *addr)
1440 {
1441         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1442
1443         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1444
1445         return 0;
1446 }
1447
1448 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1449 {
1450         struct ieee80211_local *local = wiphy_priv(wiphy);
1451
1452         drv_rfkill_poll(local);
1453 }
1454
1455 #ifdef CONFIG_NL80211_TESTMODE
1456 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1457 {
1458         struct ieee80211_local *local = wiphy_priv(wiphy);
1459
1460         if (!local->ops->testmode_cmd)
1461                 return -EOPNOTSUPP;
1462
1463         return local->ops->testmode_cmd(&local->hw, data, len);
1464 }
1465 #endif
1466
1467 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1468                              enum ieee80211_smps_mode smps_mode)
1469 {
1470         const u8 *ap;
1471         enum ieee80211_smps_mode old_req;
1472         int err;
1473
1474         old_req = sdata->u.mgd.req_smps;
1475         sdata->u.mgd.req_smps = smps_mode;
1476
1477         if (old_req == smps_mode &&
1478             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1479                 return 0;
1480
1481         /*
1482          * If not associated, or current association is not an HT
1483          * association, there's no need to send an action frame.
1484          */
1485         if (!sdata->u.mgd.associated ||
1486             sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1487                 mutex_lock(&sdata->local->iflist_mtx);
1488                 ieee80211_recalc_smps(sdata->local);
1489                 mutex_unlock(&sdata->local->iflist_mtx);
1490                 return 0;
1491         }
1492
1493         ap = sdata->u.mgd.associated->bssid;
1494
1495         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1496                 if (sdata->u.mgd.powersave)
1497                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1498                 else
1499                         smps_mode = IEEE80211_SMPS_OFF;
1500         }
1501
1502         /* send SM PS frame to AP */
1503         err = ieee80211_send_smps_action(sdata, smps_mode,
1504                                          ap, ap);
1505         if (err)
1506                 sdata->u.mgd.req_smps = old_req;
1507
1508         return err;
1509 }
1510
1511 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1512                                     bool enabled, int timeout)
1513 {
1514         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1515         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1516
1517         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1518                 return -EOPNOTSUPP;
1519
1520         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1521                 return -EOPNOTSUPP;
1522
1523         if (enabled == sdata->u.mgd.powersave &&
1524             timeout == local->dynamic_ps_forced_timeout)
1525                 return 0;
1526
1527         sdata->u.mgd.powersave = enabled;
1528         local->dynamic_ps_forced_timeout = timeout;
1529
1530         /* no change, but if automatic follow powersave */
1531         mutex_lock(&sdata->u.mgd.mtx);
1532         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1533         mutex_unlock(&sdata->u.mgd.mtx);
1534
1535         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1536                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1537
1538         ieee80211_recalc_ps(local, -1);
1539
1540         return 0;
1541 }
1542
1543 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1544                                          struct net_device *dev,
1545                                          s32 rssi_thold, u32 rssi_hyst)
1546 {
1547         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1548         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1549         struct ieee80211_vif *vif = &sdata->vif;
1550         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1551
1552         if (rssi_thold == bss_conf->cqm_rssi_thold &&
1553             rssi_hyst == bss_conf->cqm_rssi_hyst)
1554                 return 0;
1555
1556         bss_conf->cqm_rssi_thold = rssi_thold;
1557         bss_conf->cqm_rssi_hyst = rssi_hyst;
1558
1559         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1560                 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1561                         return -EOPNOTSUPP;
1562                 return 0;
1563         }
1564
1565         /* tell the driver upon association, unless already associated */
1566         if (sdata->u.mgd.associated)
1567                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1568
1569         return 0;
1570 }
1571
1572 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1573                                       struct net_device *dev,
1574                                       const u8 *addr,
1575                                       const struct cfg80211_bitrate_mask *mask)
1576 {
1577         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1578         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1579         int i;
1580
1581         /*
1582          * This _could_ be supported by providing a hook for
1583          * drivers for this function, but at this point it
1584          * doesn't seem worth bothering.
1585          */
1586         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1587                 return -EOPNOTSUPP;
1588
1589
1590         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1591                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1592
1593         return 0;
1594 }
1595
1596 static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1597                                           struct net_device *dev,
1598                                           struct ieee80211_channel *chan,
1599                                           enum nl80211_channel_type chantype,
1600                                           unsigned int duration, u64 *cookie)
1601 {
1602         int ret;
1603         u32 random_cookie;
1604
1605         lockdep_assert_held(&local->mtx);
1606
1607         if (local->hw_roc_cookie)
1608                 return -EBUSY;
1609         /* must be nonzero */
1610         random_cookie = random32() | 1;
1611
1612         *cookie = random_cookie;
1613         local->hw_roc_dev = dev;
1614         local->hw_roc_cookie = random_cookie;
1615         local->hw_roc_channel = chan;
1616         local->hw_roc_channel_type = chantype;
1617         local->hw_roc_duration = duration;
1618         ret = drv_remain_on_channel(local, chan, chantype, duration);
1619         if (ret) {
1620                 local->hw_roc_channel = NULL;
1621                 local->hw_roc_cookie = 0;
1622         }
1623
1624         return ret;
1625 }
1626
1627 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1628                                        struct net_device *dev,
1629                                        struct ieee80211_channel *chan,
1630                                        enum nl80211_channel_type channel_type,
1631                                        unsigned int duration,
1632                                        u64 *cookie)
1633 {
1634         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1635         struct ieee80211_local *local = sdata->local;
1636
1637         if (local->ops->remain_on_channel) {
1638                 int ret;
1639
1640                 mutex_lock(&local->mtx);
1641                 ret = ieee80211_remain_on_channel_hw(local, dev,
1642                                                      chan, channel_type,
1643                                                      duration, cookie);
1644                 local->hw_roc_for_tx = false;
1645                 mutex_unlock(&local->mtx);
1646
1647                 return ret;
1648         }
1649
1650         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1651                                               duration, cookie);
1652 }
1653
1654 static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1655                                                  u64 cookie)
1656 {
1657         int ret;
1658
1659         lockdep_assert_held(&local->mtx);
1660
1661         if (local->hw_roc_cookie != cookie)
1662                 return -ENOENT;
1663
1664         ret = drv_cancel_remain_on_channel(local);
1665         if (ret)
1666                 return ret;
1667
1668         local->hw_roc_cookie = 0;
1669         local->hw_roc_channel = NULL;
1670
1671         ieee80211_recalc_idle(local);
1672
1673         return 0;
1674 }
1675
1676 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1677                                               struct net_device *dev,
1678                                               u64 cookie)
1679 {
1680         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1681         struct ieee80211_local *local = sdata->local;
1682
1683         if (local->ops->cancel_remain_on_channel) {
1684                 int ret;
1685
1686                 mutex_lock(&local->mtx);
1687                 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1688                 mutex_unlock(&local->mtx);
1689
1690                 return ret;
1691         }
1692
1693         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1694 }
1695
1696 static enum work_done_result
1697 ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1698 {
1699         /*
1700          * Use the data embedded in the work struct for reporting
1701          * here so if the driver mangled the SKB before dropping
1702          * it (which is the only way we really should get here)
1703          * then we don't report mangled data.
1704          *
1705          * If there was no wait time, then by the time we get here
1706          * the driver will likely not have reported the status yet,
1707          * so in that case userspace will have to deal with it.
1708          */
1709
1710         if (wk->offchan_tx.wait && wk->offchan_tx.frame)
1711                 cfg80211_mgmt_tx_status(wk->sdata->dev,
1712                                         (unsigned long) wk->offchan_tx.frame,
1713                                         wk->ie, wk->ie_len, false, GFP_KERNEL);
1714
1715         return WORK_DONE_DESTROY;
1716 }
1717
1718 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1719                              struct ieee80211_channel *chan, bool offchan,
1720                              enum nl80211_channel_type channel_type,
1721                              bool channel_type_valid, unsigned int wait,
1722                              const u8 *buf, size_t len, u64 *cookie)
1723 {
1724         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1725         struct ieee80211_local *local = sdata->local;
1726         struct sk_buff *skb;
1727         struct sta_info *sta;
1728         struct ieee80211_work *wk;
1729         const struct ieee80211_mgmt *mgmt = (void *)buf;
1730         u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1731                     IEEE80211_TX_CTL_REQ_TX_STATUS;
1732         bool is_offchan = false;
1733
1734         /* Check that we are on the requested channel for transmission */
1735         if (chan != local->tmp_channel &&
1736             chan != local->oper_channel)
1737                 is_offchan = true;
1738         if (channel_type_valid &&
1739             (channel_type != local->tmp_channel_type &&
1740              channel_type != local->_oper_channel_type))
1741                 is_offchan = true;
1742
1743         if (chan == local->hw_roc_channel) {
1744                 /* TODO: check channel type? */
1745                 is_offchan = false;
1746                 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1747         }
1748
1749         if (is_offchan && !offchan)
1750                 return -EBUSY;
1751
1752         switch (sdata->vif.type) {
1753         case NL80211_IFTYPE_ADHOC:
1754         case NL80211_IFTYPE_AP:
1755         case NL80211_IFTYPE_AP_VLAN:
1756         case NL80211_IFTYPE_P2P_GO:
1757         case NL80211_IFTYPE_MESH_POINT:
1758                 if (!ieee80211_is_action(mgmt->frame_control) ||
1759                     mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1760                         break;
1761                 rcu_read_lock();
1762                 sta = sta_info_get(sdata, mgmt->da);
1763                 rcu_read_unlock();
1764                 if (!sta)
1765                         return -ENOLINK;
1766                 break;
1767         case NL80211_IFTYPE_STATION:
1768         case NL80211_IFTYPE_P2P_CLIENT:
1769                 break;
1770         default:
1771                 return -EOPNOTSUPP;
1772         }
1773
1774         skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1775         if (!skb)
1776                 return -ENOMEM;
1777         skb_reserve(skb, local->hw.extra_tx_headroom);
1778
1779         memcpy(skb_put(skb, len), buf, len);
1780
1781         IEEE80211_SKB_CB(skb)->flags = flags;
1782
1783         skb->dev = sdata->dev;
1784
1785         *cookie = (unsigned long) skb;
1786
1787         if (is_offchan && local->ops->remain_on_channel) {
1788                 unsigned int duration;
1789                 int ret;
1790
1791                 mutex_lock(&local->mtx);
1792                 /*
1793                  * If the duration is zero, then the driver
1794                  * wouldn't actually do anything. Set it to
1795                  * 100 for now.
1796                  *
1797                  * TODO: cancel the off-channel operation
1798                  *       when we get the SKB's TX status and
1799                  *       the wait time was zero before.
1800                  */
1801                 duration = 100;
1802                 if (wait)
1803                         duration = wait;
1804                 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
1805                                                      channel_type,
1806                                                      duration, cookie);
1807                 if (ret) {
1808                         kfree_skb(skb);
1809                         mutex_unlock(&local->mtx);
1810                         return ret;
1811                 }
1812
1813                 local->hw_roc_for_tx = true;
1814                 local->hw_roc_duration = wait;
1815
1816                 /*
1817                  * queue up frame for transmission after
1818                  * ieee80211_ready_on_channel call
1819                  */
1820
1821                 /* modify cookie to prevent API mismatches */
1822                 *cookie ^= 2;
1823                 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1824                 local->hw_roc_skb = skb;
1825                 mutex_unlock(&local->mtx);
1826
1827                 return 0;
1828         }
1829
1830         /*
1831          * Can transmit right away if the channel was the
1832          * right one and there's no wait involved... If a
1833          * wait is involved, we might otherwise not be on
1834          * the right channel for long enough!
1835          */
1836         if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
1837                 ieee80211_tx_skb(sdata, skb);
1838                 return 0;
1839         }
1840
1841         wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
1842         if (!wk) {
1843                 kfree_skb(skb);
1844                 return -ENOMEM;
1845         }
1846
1847         wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
1848         wk->chan = chan;
1849         wk->sdata = sdata;
1850         wk->done = ieee80211_offchan_tx_done;
1851         wk->offchan_tx.frame = skb;
1852         wk->offchan_tx.wait = wait;
1853         wk->ie_len = len;
1854         memcpy(wk->ie, buf, len);
1855
1856         ieee80211_add_work(wk);
1857         return 0;
1858 }
1859
1860 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1861                                          struct net_device *dev,
1862                                          u64 cookie)
1863 {
1864         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1865         struct ieee80211_local *local = sdata->local;
1866         struct ieee80211_work *wk;
1867         int ret = -ENOENT;
1868
1869         mutex_lock(&local->mtx);
1870
1871         if (local->ops->cancel_remain_on_channel) {
1872                 cookie ^= 2;
1873                 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1874
1875                 if (ret == 0) {
1876                         kfree_skb(local->hw_roc_skb);
1877                         local->hw_roc_skb = NULL;
1878                 }
1879
1880                 mutex_unlock(&local->mtx);
1881
1882                 return ret;
1883         }
1884
1885         list_for_each_entry(wk, &local->work_list, list) {
1886                 if (wk->sdata != sdata)
1887                         continue;
1888
1889                 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
1890                         continue;
1891
1892                 if (cookie != (unsigned long) wk->offchan_tx.frame)
1893                         continue;
1894
1895                 wk->timeout = jiffies;
1896
1897                 ieee80211_queue_work(&local->hw, &local->work_work);
1898                 ret = 0;
1899                 break;
1900         }
1901         mutex_unlock(&local->mtx);
1902
1903         return ret;
1904 }
1905
1906 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
1907                                           struct net_device *dev,
1908                                           u16 frame_type, bool reg)
1909 {
1910         struct ieee80211_local *local = wiphy_priv(wiphy);
1911
1912         if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
1913                 return;
1914
1915         if (reg)
1916                 local->probe_req_reg++;
1917         else
1918                 local->probe_req_reg--;
1919
1920         ieee80211_queue_work(&local->hw, &local->reconfig_filter);
1921 }
1922
1923 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1924 {
1925         struct ieee80211_local *local = wiphy_priv(wiphy);
1926
1927         if (local->started)
1928                 return -EOPNOTSUPP;
1929
1930         return drv_set_antenna(local, tx_ant, rx_ant);
1931 }
1932
1933 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
1934 {
1935         struct ieee80211_local *local = wiphy_priv(wiphy);
1936
1937         return drv_get_antenna(local, tx_ant, rx_ant);
1938 }
1939
1940 struct cfg80211_ops mac80211_config_ops = {
1941         .add_virtual_intf = ieee80211_add_iface,
1942         .del_virtual_intf = ieee80211_del_iface,
1943         .change_virtual_intf = ieee80211_change_iface,
1944         .add_key = ieee80211_add_key,
1945         .del_key = ieee80211_del_key,
1946         .get_key = ieee80211_get_key,
1947         .set_default_key = ieee80211_config_default_key,
1948         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1949         .add_beacon = ieee80211_add_beacon,
1950         .set_beacon = ieee80211_set_beacon,
1951         .del_beacon = ieee80211_del_beacon,
1952         .add_station = ieee80211_add_station,
1953         .del_station = ieee80211_del_station,
1954         .change_station = ieee80211_change_station,
1955         .get_station = ieee80211_get_station,
1956         .dump_station = ieee80211_dump_station,
1957         .dump_survey = ieee80211_dump_survey,
1958 #ifdef CONFIG_MAC80211_MESH
1959         .add_mpath = ieee80211_add_mpath,
1960         .del_mpath = ieee80211_del_mpath,
1961         .change_mpath = ieee80211_change_mpath,
1962         .get_mpath = ieee80211_get_mpath,
1963         .dump_mpath = ieee80211_dump_mpath,
1964         .update_mesh_config = ieee80211_update_mesh_config,
1965         .get_mesh_config = ieee80211_get_mesh_config,
1966         .join_mesh = ieee80211_join_mesh,
1967         .leave_mesh = ieee80211_leave_mesh,
1968 #endif
1969         .change_bss = ieee80211_change_bss,
1970         .set_txq_params = ieee80211_set_txq_params,
1971         .set_channel = ieee80211_set_channel,
1972         .suspend = ieee80211_suspend,
1973         .resume = ieee80211_resume,
1974         .scan = ieee80211_scan,
1975         .auth = ieee80211_auth,
1976         .assoc = ieee80211_assoc,
1977         .deauth = ieee80211_deauth,
1978         .disassoc = ieee80211_disassoc,
1979         .join_ibss = ieee80211_join_ibss,
1980         .leave_ibss = ieee80211_leave_ibss,
1981         .set_wiphy_params = ieee80211_set_wiphy_params,
1982         .set_tx_power = ieee80211_set_tx_power,
1983         .get_tx_power = ieee80211_get_tx_power,
1984         .set_wds_peer = ieee80211_set_wds_peer,
1985         .rfkill_poll = ieee80211_rfkill_poll,
1986         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1987         .set_power_mgmt = ieee80211_set_power_mgmt,
1988         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1989         .remain_on_channel = ieee80211_remain_on_channel,
1990         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1991         .mgmt_tx = ieee80211_mgmt_tx,
1992         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
1993         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1994         .mgmt_frame_register = ieee80211_mgmt_frame_register,
1995         .set_antenna = ieee80211_set_antenna,
1996         .get_antenna = ieee80211_get_antenna,
1997 };