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 <net/net_namespace.h>
  13 #include <linux/rcupdate.h>
  14 #include <net/cfg80211.h>
  15 #include "ieee80211_i.h"
  16 #include "driver-ops.h"
  17 #include "cfg.h"
  18 #include "rate.h"
  19 #include "mesh.h"
  20
  21 static bool nl80211_type_check(enum nl80211_iftype type)
  22 {
  23         switch (type) {
  24         case NL80211_IFTYPE_ADHOC:
  25         case NL80211_IFTYPE_STATION:
  26         case NL80211_IFTYPE_MONITOR:
  27 #ifdef CONFIG_MAC80211_MESH
  28         case NL80211_IFTYPE_MESH_POINT:
  29 #endif
  30         case NL80211_IFTYPE_AP:
  31         case NL80211_IFTYPE_AP_VLAN:
  32         case NL80211_IFTYPE_WDS:
  33                 return true;
  34         default:
  35                 return false;
  36         }
  37 }
  38
  39 static bool nl80211_params_check(enum nl80211_iftype type,
  40                                  struct vif_params *params)
  41 {
  42         if (!nl80211_type_check(type))
  43                 return false;
  44
  45         return true;
  46 }
  47
  48 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
  49                                enum nl80211_iftype type, u32 *flags,
  50                                struct vif_params *params)
  51 {
  52         struct ieee80211_local *local = wiphy_priv(wiphy);
  53         struct net_device *dev;
  54         struct ieee80211_sub_if_data *sdata;
  55         int err;
  56
  57         if (!nl80211_params_check(type, params))
  58                 return -EINVAL;
  59
  60         err = ieee80211_if_add(local, name, &dev, type, params);
  61         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
  62                 return err;
  63
  64         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  65         sdata->u.mntr_flags = *flags;
  66         return 0;
  67 }
  68
  69 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
  70 {
  71         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
  72
  73         return 0;
  74 }
  75
  76 static int ieee80211_change_iface(struct wiphy *wiphy,
  77                                   struct net_device *dev,
  78                                   enum nl80211_iftype type, u32 *flags,
  79                                   struct vif_params *params)
  80 {
  81         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  82         int ret;
  83
  84         if (ieee80211_sdata_running(sdata))
  85                 return -EBUSY;
  86
  87         if (!nl80211_params_check(type, params))
  88                 return -EINVAL;
  89
  90         ret = ieee80211_if_change_type(sdata, type);
  91         if (ret)
  92                 return ret;
  93
  94         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
  95                 ieee80211_sdata_set_mesh_id(sdata,
  96                                             params->mesh_id_len,
  97                                             params->mesh_id);
  98
  99         if (type == NL80211_IFTYPE_AP_VLAN &&
 100             params && params->use_4addr == 0)
 101                 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
 102         else if (type == NL80211_IFTYPE_STATION &&
 103                  params && params->use_4addr >= 0)
 104                 sdata->u.mgd.use_4addr = params->use_4addr;
 105
 106         if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags)
 107                 sdata->u.mntr_flags = *flags;
 108
 109         return 0;
 110 }
 111
 112 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 113                              u8 key_idx, const u8 *mac_addr,
 114                              struct key_params *params)
 115 {
 116         struct ieee80211_sub_if_data *sdata;
 117         struct sta_info *sta = NULL;
 118         enum ieee80211_key_alg alg;
 119         struct ieee80211_key *key;
 120         int err;
 121
 122         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 123
 124         switch (params->cipher) {
 125         case WLAN_CIPHER_SUITE_WEP40:
 126         case WLAN_CIPHER_SUITE_WEP104:
 127                 alg = ALG_WEP;
 128                 break;
 129         case WLAN_CIPHER_SUITE_TKIP:
 130                 alg = ALG_TKIP;
 131                 break;
 132         case WLAN_CIPHER_SUITE_CCMP:
 133                 alg = ALG_CCMP;
 134                 break;
 135         case WLAN_CIPHER_SUITE_AES_CMAC:
 136                 alg = ALG_AES_CMAC;
 137                 break;
 138         default:
 139                 return -EINVAL;
 140         }
 141
 142         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
 143                                   params->seq_len, params->seq);
 144         if (!key)
 145                 return -ENOMEM;
 146
 147         rcu_read_lock();
 148
 149         if (mac_addr) {
 150                 sta = sta_info_get_bss(sdata, mac_addr);
 151                 if (!sta) {
 152                         ieee80211_key_free(key);
 153                         err = -ENOENT;
 154                         goto out_unlock;
 155                 }
 156         }
 157
 158         ieee80211_key_link(key, sdata, sta);
 159
 160         err = 0;
 161  out_unlock:
 162         rcu_read_unlock();
 163
 164         return err;
 165 }
 166
 167 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 168                              u8 key_idx, const u8 *mac_addr)
 169 {
 170         struct ieee80211_sub_if_data *sdata;
 171         struct sta_info *sta;
 172         int ret;
 173
 174         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 175
 176         rcu_read_lock();
 177
 178         if (mac_addr) {
 179                 ret = -ENOENT;
 180
 181                 sta = sta_info_get_bss(sdata, mac_addr);
 182                 if (!sta)
 183                         goto out_unlock;
 184
 185                 if (sta->key) {
 186                         ieee80211_key_free(sta->key);
 187                         WARN_ON(sta->key);
 188                         ret = 0;
 189                 }
 190
 191                 goto out_unlock;
 192         }
 193
 194         if (!sdata->keys[key_idx]) {
 195                 ret = -ENOENT;
 196                 goto out_unlock;
 197         }
 198
 199         ieee80211_key_free(sdata->keys[key_idx]);
 200         WARN_ON(sdata->keys[key_idx]);
 201
 202         ret = 0;
 203  out_unlock:
 204         rcu_read_unlock();
 205
 206         return ret;
 207 }
 208
 209 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 210                              u8 key_idx, const u8 *mac_addr, void *cookie,
 211                              void (*callback)(void *cookie,
 212                                               struct key_params *params))
 213 {
 214         struct ieee80211_sub_if_data *sdata;
 215         struct sta_info *sta = NULL;
 216         u8 seq[6] = {0};
 217         struct key_params params;
 218         struct ieee80211_key *key;
 219         u32 iv32;
 220         u16 iv16;
 221         int err = -ENOENT;
 222
 223         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 224
 225         rcu_read_lock();
 226
 227         if (mac_addr) {
 228                 sta = sta_info_get_bss(sdata, mac_addr);
 229                 if (!sta)
 230                         goto out;
 231
 232                 key = sta->key;
 233         } else
 234                 key = sdata->keys[key_idx];
 235
 236         if (!key)
 237                 goto out;
 238
 239         memset(&params, 0, sizeof(params));
 240
 241         switch (key->conf.alg) {
 242         case ALG_TKIP:
 243                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
 244
 245                 iv32 = key->u.tkip.tx.iv32;
 246                 iv16 = key->u.tkip.tx.iv16;
 247
 248                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 249                         drv_get_tkip_seq(sdata->local,
 250                                          key->conf.hw_key_idx,
 251                                          &iv32, &iv16);
 252
 253                 seq[0] = iv16 & 0xff;
 254                 seq[1] = (iv16 >> 8) & 0xff;
 255                 seq[2] = iv32 & 0xff;
 256                 seq[3] = (iv32 >> 8) & 0xff;
 257                 seq[4] = (iv32 >> 16) & 0xff;
 258                 seq[5] = (iv32 >> 24) & 0xff;
 259                 params.seq = seq;
 260                 params.seq_len = 6;
 261                 break;
 262         case ALG_CCMP:
 263                 params.cipher = 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 ALG_WEP:
 274                 if (key->conf.keylen == 5)
 275                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
 276                 else
 277                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
 278                 break;
 279         case ALG_AES_CMAC:
 280                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 281                 seq[0] = key->u.aes_cmac.tx_pn[5];
 282                 seq[1] = key->u.aes_cmac.tx_pn[4];
 283                 seq[2] = key->u.aes_cmac.tx_pn[3];
 284                 seq[3] = key->u.aes_cmac.tx_pn[2];
 285                 seq[4] = key->u.aes_cmac.tx_pn[1];
 286                 seq[5] = key->u.aes_cmac.tx_pn[0];
 287                 params.seq = seq;
 288                 params.seq_len = 6;
 289                 break;
 290         }
 291
 292         params.key = key->conf.key;
 293         params.key_len = key->conf.keylen;
 294
 295         callback(cookie, &params);
 296         err = 0;
 297
 298  out:
 299         rcu_read_unlock();
 300         return err;
 301 }
 302
 303 static int ieee80211_config_default_key(struct wiphy *wiphy,
 304                                         struct net_device *dev,
 305                                         u8 key_idx)
 306 {
 307         struct ieee80211_sub_if_data *sdata;
 308
 309         rcu_read_lock();
 310
 311         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 312         ieee80211_set_default_key(sdata, key_idx);
 313
 314         rcu_read_unlock();
 315
 316         return 0;
 317 }
 318
 319 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 320                                              struct net_device *dev,
 321                                              u8 key_idx)
 322 {
 323         struct ieee80211_sub_if_data *sdata;
 324
 325         rcu_read_lock();
 326
 327         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 328         ieee80211_set_default_mgmt_key(sdata, key_idx);
 329
 330         rcu_read_unlock();
 331
 332         return 0;
 333 }
 334
 335 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 336 {
 337         struct ieee80211_sub_if_data *sdata = sta->sdata;
 338
 339         sinfo->generation = sdata->local->sta_generation;
 340
 341         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 342                         STATION_INFO_RX_BYTES |
 343                         STATION_INFO_TX_BYTES |
 344                         STATION_INFO_RX_PACKETS |
 345                         STATION_INFO_TX_PACKETS |
 346                         STATION_INFO_TX_BITRATE;
 347
 348         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 349         sinfo->rx_bytes = sta->rx_bytes;
 350         sinfo->tx_bytes = sta->tx_bytes;
 351         sinfo->rx_packets = sta->rx_packets;
 352         sinfo->tx_packets = sta->tx_packets;
 353
 354         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 355             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 356                 sinfo->filled |= STATION_INFO_SIGNAL;
 357                 sinfo->signal = (s8)sta->last_signal;
 358         }
 359
 360         sinfo->txrate.flags = 0;
 361         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 362                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 363         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 364                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 365         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 366                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 367
 368         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 369                 struct ieee80211_supported_band *sband;
 370                 sband = sta->local->hw.wiphy->bands[
 371                                 sta->local->hw.conf.channel->band];
 372                 sinfo->txrate.legacy =
 373                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 374         } else
 375                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 376
 377         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 378 #ifdef CONFIG_MAC80211_MESH
 379                 sinfo->filled |= STATION_INFO_LLID |
 380                                  STATION_INFO_PLID |
 381                                  STATION_INFO_PLINK_STATE;
 382
 383                 sinfo->llid = le16_to_cpu(sta->llid);
 384                 sinfo->plid = le16_to_cpu(sta->plid);
 385                 sinfo->plink_state = sta->plink_state;
 386 #endif
 387         }
 388 }
 389
 390
 391 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 392                                  int idx, u8 *mac, struct station_info *sinfo)
 393 {
 394         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 395         struct sta_info *sta;
 396         int ret = -ENOENT;
 397
 398         rcu_read_lock();
 399
 400         sta = sta_info_get_by_idx(sdata, idx);
 401         if (sta) {
 402                 ret = 0;
 403                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 404                 sta_set_sinfo(sta, sinfo);
 405         }
 406
 407         rcu_read_unlock();
 408
 409         return ret;
 410 }
 411
 412 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 413                                  int idx, struct survey_info *survey)
 414 {
 415         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 416
 417         if (!local->ops->get_survey)
 418                 return -EOPNOTSUPP;
 419
 420         return drv_get_survey(local, idx, survey);
 421 }
 422
 423 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 424                                  u8 *mac, struct station_info *sinfo)
 425 {
 426         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 427         struct sta_info *sta;
 428         int ret = -ENOENT;
 429
 430         rcu_read_lock();
 431
 432         sta = sta_info_get_bss(sdata, mac);
 433         if (sta) {
 434                 ret = 0;
 435                 sta_set_sinfo(sta, sinfo);
 436         }
 437
 438         rcu_read_unlock();
 439
 440         return ret;
 441 }
 442
 443 /*
 444  * This handles both adding a beacon and setting new beacon info
 445  */
 446 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 447                                    struct beacon_parameters *params)
 448 {
 449         struct beacon_data *new, *old;
 450         int new_head_len, new_tail_len;
 451         int size;
 452         int err = -EINVAL;
 453
 454         old = sdata->u.ap.beacon;
 455
 456         /* head must not be zero-length */
 457         if (params->head && !params->head_len)
 458                 return -EINVAL;
 459
 460         /*
 461          * This is a kludge. beacon interval should really be part
 462          * of the beacon information.
 463          */
 464         if (params->interval &&
 465             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 466                 sdata->vif.bss_conf.beacon_int = params->interval;
 467                 ieee80211_bss_info_change_notify(sdata,
 468                                                  BSS_CHANGED_BEACON_INT);
 469         }
 470
 471         /* Need to have a beacon head if we don't have one yet */
 472         if (!params->head && !old)
 473                 return err;
 474
 475         /* sorry, no way to start beaconing without dtim period */
 476         if (!params->dtim_period && !old)
 477                 return err;
 478
 479         /* new or old head? */
 480         if (params->head)
 481                 new_head_len = params->head_len;
 482         else
 483                 new_head_len = old->head_len;
 484
 485         /* new or old tail? */
 486         if (params->tail || !old)
 487                 /* params->tail_len will be zero for !params->tail */
 488                 new_tail_len = params->tail_len;
 489         else
 490                 new_tail_len = old->tail_len;
 491
 492         size = sizeof(*new) + new_head_len + new_tail_len;
 493
 494         new = kzalloc(size, GFP_KERNEL);
 495         if (!new)
 496                 return -ENOMEM;
 497
 498         /* start filling the new info now */
 499
 500         /* new or old dtim period? */
 501         if (params->dtim_period)
 502                 new->dtim_period = params->dtim_period;
 503         else
 504                 new->dtim_period = old->dtim_period;
 505
 506         /*
 507          * pointers go into the block we allocated,
 508          * memory is | beacon_data | head | tail |
 509          */
 510         new->head = ((u8 *) new) + sizeof(*new);
 511         new->tail = new->head + new_head_len;
 512         new->head_len = new_head_len;
 513         new->tail_len = new_tail_len;
 514
 515         /* copy in head */
 516         if (params->head)
 517                 memcpy(new->head, params->head, new_head_len);
 518         else
 519                 memcpy(new->head, old->head, new_head_len);
 520
 521         /* copy in optional tail */
 522         if (params->tail)
 523                 memcpy(new->tail, params->tail, new_tail_len);
 524         else
 525                 if (old)
 526                         memcpy(new->tail, old->tail, new_tail_len);
 527
 528         sdata->vif.bss_conf.dtim_period = new->dtim_period;
 529
 530         rcu_assign_pointer(sdata->u.ap.beacon, new);
 531
 532         synchronize_rcu();
 533
 534         kfree(old);
 535
 536         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 537                                                 BSS_CHANGED_BEACON);
 538         return 0;
 539 }
 540
 541 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 542                                 struct beacon_parameters *params)
 543 {
 544         struct ieee80211_sub_if_data *sdata;
 545         struct beacon_data *old;
 546
 547         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 548
 549         old = sdata->u.ap.beacon;
 550
 551         if (old)
 552                 return -EALREADY;
 553
 554         return ieee80211_config_beacon(sdata, params);
 555 }
 556
 557 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 558                                 struct beacon_parameters *params)
 559 {
 560         struct ieee80211_sub_if_data *sdata;
 561         struct beacon_data *old;
 562
 563         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 564
 565         old = sdata->u.ap.beacon;
 566
 567         if (!old)
 568                 return -ENOENT;
 569
 570         return ieee80211_config_beacon(sdata, params);
 571 }
 572
 573 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 574 {
 575         struct ieee80211_sub_if_data *sdata;
 576         struct beacon_data *old;
 577
 578         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 579
 580         old = sdata->u.ap.beacon;
 581
 582         if (!old)
 583                 return -ENOENT;
 584
 585         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 586         synchronize_rcu();
 587         kfree(old);
 588
 589         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 590         return 0;
 591 }
 592
 593 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 594 struct iapp_layer2_update {
 595         u8 da[ETH_ALEN];        /* broadcast */
 596         u8 sa[ETH_ALEN];        /* STA addr */
 597         __be16 len;             /* 6 */
 598         u8 dsap;                /* 0 */
 599         u8 ssap;                /* 0 */
 600         u8 control;
 601         u8 xid_info[3];
 602 } __attribute__ ((packed));
 603
 604 static void ieee80211_send_layer2_update(struct sta_info *sta)
 605 {
 606         struct iapp_layer2_update *msg;
 607         struct sk_buff *skb;
 608
 609         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 610          * bridge devices */
 611
 612         skb = dev_alloc_skb(sizeof(*msg));
 613         if (!skb)
 614                 return;
 615         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 616
 617         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 618          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 619
 620         memset(msg->da, 0xff, ETH_ALEN);
 621         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 622         msg->len = htons(6);
 623         msg->dsap = 0;
 624         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 625         msg->control = 0xaf;    /* XID response lsb.1111F101.
 626                                  * F=0 (no poll command; unsolicited frame) */
 627         msg->xid_info[0] = 0x81;        /* XID format identifier */
 628         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 629         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 630
 631         skb->dev = sta->sdata->dev;
 632         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 633         memset(skb->cb, 0, sizeof(skb->cb));
 634         netif_rx(skb);
 635 }
 636
 637 static void sta_apply_parameters(struct ieee80211_local *local,
 638                                  struct sta_info *sta,
 639                                  struct station_parameters *params)
 640 {
 641         u32 rates;
 642         int i, j;
 643         struct ieee80211_supported_band *sband;
 644         struct ieee80211_sub_if_data *sdata = sta->sdata;
 645         u32 mask, set;
 646
 647         sband = local->hw.wiphy->bands[local->oper_channel->band];
 648
 649         spin_lock_bh(&sta->lock);
 650         mask = params->sta_flags_mask;
 651         set = params->sta_flags_set;
 652
 653         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 654                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 655                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 656                         sta->flags |= WLAN_STA_AUTHORIZED;
 657         }
 658
 659         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 660                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 661                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 662                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 663         }
 664
 665         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 666                 sta->flags &= ~WLAN_STA_WME;
 667                 if (set & BIT(NL80211_STA_FLAG_WME))
 668                         sta->flags |= WLAN_STA_WME;
 669         }
 670
 671         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 672                 sta->flags &= ~WLAN_STA_MFP;
 673                 if (set & BIT(NL80211_STA_FLAG_MFP))
 674                         sta->flags |= WLAN_STA_MFP;
 675         }
 676         spin_unlock_bh(&sta->lock);
 677
 678         /*
 679          * cfg80211 validates this (1-2007) and allows setting the AID
 680          * only when creating a new station entry
 681          */
 682         if (params->aid)
 683                 sta->sta.aid = params->aid;
 684
 685         /*
 686          * FIXME: updating the following information is racy when this
 687          *        function is called from ieee80211_change_station().
 688          *        However, all this information should be static so
 689          *        maybe we should just reject attemps to change it.
 690          */
 691
 692         if (params->listen_interval >= 0)
 693                 sta->listen_interval = params->listen_interval;
 694
 695         if (params->supported_rates) {
 696                 rates = 0;
 697
 698                 for (i = 0; i < params->supported_rates_len; i++) {
 699                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 700                         for (j = 0; j < sband->n_bitrates; j++) {
 701                                 if (sband->bitrates[j].bitrate == rate)
 702                                         rates |= BIT(j);
 703                         }
 704                 }
 705                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 706         }
 707
 708         if (params->ht_capa)
 709                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 710                                                   params->ht_capa,
 711                                                   &sta->sta.ht_cap);
 712
 713         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 714                 switch (params->plink_action) {
 715                 case PLINK_ACTION_OPEN:
 716                         mesh_plink_open(sta);
 717                         break;
 718                 case PLINK_ACTION_BLOCK:
 719                         mesh_plink_block(sta);
 720                         break;
 721                 }
 722         }
 723 }
 724
 725 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 726                                  u8 *mac, struct station_parameters *params)
 727 {
 728         struct ieee80211_local *local = wiphy_priv(wiphy);
 729         struct sta_info *sta;
 730         struct ieee80211_sub_if_data *sdata;
 731         int err;
 732         int layer2_update;
 733
 734         if (params->vlan) {
 735                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 736
 737                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 738                     sdata->vif.type != NL80211_IFTYPE_AP)
 739                         return -EINVAL;
 740         } else
 741                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 742
 743         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
 744                 return -EINVAL;
 745
 746         if (is_multicast_ether_addr(mac))
 747                 return -EINVAL;
 748
 749         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 750         if (!sta)
 751                 return -ENOMEM;
 752
 753         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 754
 755         sta_apply_parameters(local, sta, params);
 756
 757         rate_control_rate_init(sta);
 758
 759         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 760                 sdata->vif.type == NL80211_IFTYPE_AP;
 761
 762         err = sta_info_insert_rcu(sta);
 763         if (err) {
 764                 rcu_read_unlock();
 765                 return err;
 766         }
 767
 768         if (layer2_update)
 769                 ieee80211_send_layer2_update(sta);
 770
 771         rcu_read_unlock();
 772
 773         return 0;
 774 }
 775
 776 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 777                                  u8 *mac)
 778 {
 779         struct ieee80211_local *local = wiphy_priv(wiphy);
 780         struct ieee80211_sub_if_data *sdata;
 781
 782         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 783
 784         if (mac)
 785                 return sta_info_destroy_addr_bss(sdata, mac);
 786
 787         sta_info_flush(local, sdata);
 788         return 0;
 789 }
 790
 791 static int ieee80211_change_station(struct wiphy *wiphy,
 792                                     struct net_device *dev,
 793                                     u8 *mac,
 794                                     struct station_parameters *params)
 795 {
 796         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 797         struct ieee80211_local *local = wiphy_priv(wiphy);
 798         struct sta_info *sta;
 799         struct ieee80211_sub_if_data *vlansdata;
 800
 801         rcu_read_lock();
 802
 803         sta = sta_info_get_bss(sdata, mac);
 804         if (!sta) {
 805                 rcu_read_unlock();
 806                 return -ENOENT;
 807         }
 808
 809         if (params->vlan && params->vlan != sta->sdata->dev) {
 810                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 811
 812                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 813                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 814                         rcu_read_unlock();
 815                         return -EINVAL;
 816                 }
 817
 818                 if (params->vlan->ieee80211_ptr->use_4addr) {
 819                         if (vlansdata->u.vlan.sta) {
 820                                 rcu_read_unlock();
 821                                 return -EBUSY;
 822                         }
 823
 824                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 825                 }
 826
 827                 sta->sdata = vlansdata;
 828                 ieee80211_send_layer2_update(sta);
 829         }
 830
 831         sta_apply_parameters(local, sta, params);
 832
 833         rcu_read_unlock();
 834
 835         return 0;
 836 }
 837
 838 #ifdef CONFIG_MAC80211_MESH
 839 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 840                                  u8 *dst, u8 *next_hop)
 841 {
 842         struct ieee80211_sub_if_data *sdata;
 843         struct mesh_path *mpath;
 844         struct sta_info *sta;
 845         int err;
 846
 847         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 848
 849         rcu_read_lock();
 850         sta = sta_info_get(sdata, next_hop);
 851         if (!sta) {
 852                 rcu_read_unlock();
 853                 return -ENOENT;
 854         }
 855
 856         err = mesh_path_add(dst, sdata);
 857         if (err) {
 858                 rcu_read_unlock();
 859                 return err;
 860         }
 861
 862         mpath = mesh_path_lookup(dst, sdata);
 863         if (!mpath) {
 864                 rcu_read_unlock();
 865                 return -ENXIO;
 866         }
 867         mesh_path_fix_nexthop(mpath, sta);
 868
 869         rcu_read_unlock();
 870         return 0;
 871 }
 872
 873 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 874                                  u8 *dst)
 875 {
 876         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 877
 878         if (dst)
 879                 return mesh_path_del(dst, sdata);
 880
 881         mesh_path_flush(sdata);
 882         return 0;
 883 }
 884
 885 static int ieee80211_change_mpath(struct wiphy *wiphy,
 886                                     struct net_device *dev,
 887                                     u8 *dst, u8 *next_hop)
 888 {
 889         struct ieee80211_sub_if_data *sdata;
 890         struct mesh_path *mpath;
 891         struct sta_info *sta;
 892
 893         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 894
 895         rcu_read_lock();
 896
 897         sta = sta_info_get(sdata, next_hop);
 898         if (!sta) {
 899                 rcu_read_unlock();
 900                 return -ENOENT;
 901         }
 902
 903         mpath = mesh_path_lookup(dst, sdata);
 904         if (!mpath) {
 905                 rcu_read_unlock();
 906                 return -ENOENT;
 907         }
 908
 909         mesh_path_fix_nexthop(mpath, sta);
 910
 911         rcu_read_unlock();
 912         return 0;
 913 }
 914
 915 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 916                             struct mpath_info *pinfo)
 917 {
 918         if (mpath->next_hop)
 919                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 920         else
 921                 memset(next_hop, 0, ETH_ALEN);
 922
 923         pinfo->generation = mesh_paths_generation;
 924
 925         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 926                         MPATH_INFO_SN |
 927                         MPATH_INFO_METRIC |
 928                         MPATH_INFO_EXPTIME |
 929                         MPATH_INFO_DISCOVERY_TIMEOUT |
 930                         MPATH_INFO_DISCOVERY_RETRIES |
 931                         MPATH_INFO_FLAGS;
 932
 933         pinfo->frame_qlen = mpath->frame_queue.qlen;
 934         pinfo->sn = mpath->sn;
 935         pinfo->metric = mpath->metric;
 936         if (time_before(jiffies, mpath->exp_time))
 937                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 938         pinfo->discovery_timeout =
 939                         jiffies_to_msecs(mpath->discovery_timeout);
 940         pinfo->discovery_retries = mpath->discovery_retries;
 941         pinfo->flags = 0;
 942         if (mpath->flags & MESH_PATH_ACTIVE)
 943                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 944         if (mpath->flags & MESH_PATH_RESOLVING)
 945                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 946         if (mpath->flags & MESH_PATH_SN_VALID)
 947                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 948         if (mpath->flags & MESH_PATH_FIXED)
 949                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 950         if (mpath->flags & MESH_PATH_RESOLVING)
 951                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 952
 953         pinfo->flags = mpath->flags;
 954 }
 955
 956 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 957                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 958
 959 {
 960         struct ieee80211_sub_if_data *sdata;
 961         struct mesh_path *mpath;
 962
 963         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 964
 965         rcu_read_lock();
 966         mpath = mesh_path_lookup(dst, sdata);
 967         if (!mpath) {
 968                 rcu_read_unlock();
 969                 return -ENOENT;
 970         }
 971         memcpy(dst, mpath->dst, ETH_ALEN);
 972         mpath_set_pinfo(mpath, next_hop, pinfo);
 973         rcu_read_unlock();
 974         return 0;
 975 }
 976
 977 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 978                                  int idx, u8 *dst, u8 *next_hop,
 979                                  struct mpath_info *pinfo)
 980 {
 981         struct ieee80211_sub_if_data *sdata;
 982         struct mesh_path *mpath;
 983
 984         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 985
 986         rcu_read_lock();
 987         mpath = mesh_path_lookup_by_idx(idx, sdata);
 988         if (!mpath) {
 989                 rcu_read_unlock();
 990                 return -ENOENT;
 991         }
 992         memcpy(dst, mpath->dst, ETH_ALEN);
 993         mpath_set_pinfo(mpath, next_hop, pinfo);
 994         rcu_read_unlock();
 995         return 0;
 996 }
 997
 998 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
 999                                 struct net_device *dev,
1000                                 struct mesh_config *conf)
1001 {
1002         struct ieee80211_sub_if_data *sdata;
1003         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1004
1005         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1006         return 0;
1007 }
1008
1009 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1010 {
1011         return (mask >> (parm-1)) & 0x1;
1012 }
1013
1014 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1015                                 struct net_device *dev,
1016                                 const struct mesh_config *nconf, u32 mask)
1017 {
1018         struct mesh_config *conf;
1019         struct ieee80211_sub_if_data *sdata;
1020         struct ieee80211_if_mesh *ifmsh;
1021
1022         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1023         ifmsh = &sdata->u.mesh;
1024
1025         /* Set the config options which we are interested in setting */
1026         conf = &(sdata->u.mesh.mshcfg);
1027         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1028                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1029         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1030                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1031         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1032                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1033         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1034                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1035         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1036                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1037         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1038                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1039         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1040                 conf->auto_open_plinks = nconf->auto_open_plinks;
1041         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1042                 conf->dot11MeshHWMPmaxPREQretries =
1043                         nconf->dot11MeshHWMPmaxPREQretries;
1044         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1045                 conf->path_refresh_time = nconf->path_refresh_time;
1046         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1047                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1048         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1049                 conf->dot11MeshHWMPactivePathTimeout =
1050                         nconf->dot11MeshHWMPactivePathTimeout;
1051         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1052                 conf->dot11MeshHWMPpreqMinInterval =
1053                         nconf->dot11MeshHWMPpreqMinInterval;
1054         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1055                            mask))
1056                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1057                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1058         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1059                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1060                 ieee80211_mesh_root_setup(ifmsh);
1061         }
1062         return 0;
1063 }
1064
1065 #endif
1066
1067 static int ieee80211_change_bss(struct wiphy *wiphy,
1068                                 struct net_device *dev,
1069                                 struct bss_parameters *params)
1070 {
1071         struct ieee80211_sub_if_data *sdata;
1072         u32 changed = 0;
1073
1074         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1075
1076         if (params->use_cts_prot >= 0) {
1077                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1078                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1079         }
1080         if (params->use_short_preamble >= 0) {
1081                 sdata->vif.bss_conf.use_short_preamble =
1082                         params->use_short_preamble;
1083                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1084         }
1085
1086         if (!sdata->vif.bss_conf.use_short_slot &&
1087             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1088                 sdata->vif.bss_conf.use_short_slot = true;
1089                 changed |= BSS_CHANGED_ERP_SLOT;
1090         }
1091
1092         if (params->use_short_slot_time >= 0) {
1093                 sdata->vif.bss_conf.use_short_slot =
1094                         params->use_short_slot_time;
1095                 changed |= BSS_CHANGED_ERP_SLOT;
1096         }
1097
1098         if (params->basic_rates) {
1099                 int i, j;
1100                 u32 rates = 0;
1101                 struct ieee80211_local *local = wiphy_priv(wiphy);
1102                 struct ieee80211_supported_band *sband =
1103                         wiphy->bands[local->oper_channel->band];
1104
1105                 for (i = 0; i < params->basic_rates_len; i++) {
1106                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1107                         for (j = 0; j < sband->n_bitrates; j++) {
1108                                 if (sband->bitrates[j].bitrate == rate)
1109                                         rates |= BIT(j);
1110                         }
1111                 }
1112                 sdata->vif.bss_conf.basic_rates = rates;
1113                 changed |= BSS_CHANGED_BASIC_RATES;
1114         }
1115
1116         ieee80211_bss_info_change_notify(sdata, changed);
1117
1118         return 0;
1119 }
1120
1121 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1122                                     struct ieee80211_txq_params *params)
1123 {
1124         struct ieee80211_local *local = wiphy_priv(wiphy);
1125         struct ieee80211_tx_queue_params p;
1126
1127         if (!local->ops->conf_tx)
1128                 return -EOPNOTSUPP;
1129
1130         memset(&p, 0, sizeof(p));
1131         p.aifs = params->aifs;
1132         p.cw_max = params->cwmax;
1133         p.cw_min = params->cwmin;
1134         p.txop = params->txop;
1135
1136         /*
1137          * Setting tx queue params disables u-apsd because it's only
1138          * called in master mode.
1139          */
1140         p.uapsd = false;
1141
1142         if (drv_conf_tx(local, params->queue, &p)) {
1143                 printk(KERN_DEBUG "%s: failed to set TX queue "
1144                        "parameters for queue %d\n",
1145                        wiphy_name(local->hw.wiphy), params->queue);
1146                 return -EINVAL;
1147         }
1148
1149         /* enable WMM or activate new settings */
1150         local->hw.conf.flags |= IEEE80211_CONF_QOS;
1151         drv_config(local, IEEE80211_CONF_CHANGE_QOS);
1152
1153         return 0;
1154 }
1155
1156 static int ieee80211_set_channel(struct wiphy *wiphy,
1157                                  struct ieee80211_channel *chan,
1158                                  enum nl80211_channel_type channel_type)
1159 {
1160         struct ieee80211_local *local = wiphy_priv(wiphy);
1161
1162         local->oper_channel = chan;
1163         local->oper_channel_type = channel_type;
1164
1165         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1166 }
1167
1168 #ifdef CONFIG_PM
1169 static int ieee80211_suspend(struct wiphy *wiphy)
1170 {
1171         return __ieee80211_suspend(wiphy_priv(wiphy));
1172 }
1173
1174 static int ieee80211_resume(struct wiphy *wiphy)
1175 {
1176         return __ieee80211_resume(wiphy_priv(wiphy));
1177 }
1178 #else
1179 #define ieee80211_suspend NULL
1180 #define ieee80211_resume NULL
1181 #endif
1182
1183 static int ieee80211_scan(struct wiphy *wiphy,
1184                           struct net_device *dev,
1185                           struct cfg80211_scan_request *req)
1186 {
1187         struct ieee80211_sub_if_data *sdata;
1188
1189         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1190
1191         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1192             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1193             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1194             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1195                 return -EOPNOTSUPP;
1196
1197         return ieee80211_request_scan(sdata, req);
1198 }
1199
1200 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1201                           struct cfg80211_auth_request *req)
1202 {
1203         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1204 }
1205
1206 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1207                            struct cfg80211_assoc_request *req)
1208 {
1209         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1210 }
1211
1212 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1213                             struct cfg80211_deauth_request *req,
1214                             void *cookie)
1215 {
1216         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1217                                     req, cookie);
1218 }
1219
1220 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1221                               struct cfg80211_disassoc_request *req,
1222                               void *cookie)
1223 {
1224         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1225                                       req, cookie);
1226 }
1227
1228 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1229                                struct cfg80211_ibss_params *params)
1230 {
1231         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1232
1233         return ieee80211_ibss_join(sdata, params);
1234 }
1235
1236 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1237 {
1238         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1239
1240         return ieee80211_ibss_leave(sdata);
1241 }
1242
1243 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1244 {
1245         struct ieee80211_local *local = wiphy_priv(wiphy);
1246         int err;
1247
1248         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1249                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1250
1251                 if (err)
1252                         return err;
1253         }
1254
1255         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1256                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1257
1258                 if (err)
1259                         return err;
1260         }
1261
1262         if (changed & WIPHY_PARAM_RETRY_SHORT)
1263                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1264         if (changed & WIPHY_PARAM_RETRY_LONG)
1265                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1266         if (changed &
1267             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1268                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1269
1270         return 0;
1271 }
1272
1273 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1274                                   enum tx_power_setting type, int dbm)
1275 {
1276         struct ieee80211_local *local = wiphy_priv(wiphy);
1277         struct ieee80211_channel *chan = local->hw.conf.channel;
1278         u32 changes = 0;
1279
1280         switch (type) {
1281         case TX_POWER_AUTOMATIC:
1282                 local->user_power_level = -1;
1283                 break;
1284         case TX_POWER_LIMITED:
1285                 if (dbm < 0)
1286                         return -EINVAL;
1287                 local->user_power_level = dbm;
1288                 break;
1289         case TX_POWER_FIXED:
1290                 if (dbm < 0)
1291                         return -EINVAL;
1292                 /* TODO: move to cfg80211 when it knows the channel */
1293                 if (dbm > chan->max_power)
1294                         return -EINVAL;
1295                 local->user_power_level = dbm;
1296                 break;
1297         }
1298
1299         ieee80211_hw_config(local, changes);
1300
1301         return 0;
1302 }
1303
1304 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1305 {
1306         struct ieee80211_local *local = wiphy_priv(wiphy);
1307
1308         *dbm = local->hw.conf.power_level;
1309
1310         return 0;
1311 }
1312
1313 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1314                                   u8 *addr)
1315 {
1316         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1317
1318         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1319
1320         return 0;
1321 }
1322
1323 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1324 {
1325         struct ieee80211_local *local = wiphy_priv(wiphy);
1326
1327         drv_rfkill_poll(local);
1328 }
1329
1330 #ifdef CONFIG_NL80211_TESTMODE
1331 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1332 {
1333         struct ieee80211_local *local = wiphy_priv(wiphy);
1334
1335         if (!local->ops->testmode_cmd)
1336                 return -EOPNOTSUPP;
1337
1338         return local->ops->testmode_cmd(&local->hw, data, len);
1339 }
1340 #endif
1341
1342 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1343                              enum ieee80211_smps_mode smps_mode)
1344 {
1345         const u8 *ap;
1346         enum ieee80211_smps_mode old_req;
1347         int err;
1348
1349         old_req = sdata->u.mgd.req_smps;
1350         sdata->u.mgd.req_smps = smps_mode;
1351
1352         if (old_req == smps_mode &&
1353             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1354                 return 0;
1355
1356         /*
1357          * If not associated, or current association is not an HT
1358          * association, there's no need to send an action frame.
1359          */
1360         if (!sdata->u.mgd.associated ||
1361             sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
1362                 mutex_lock(&sdata->local->iflist_mtx);
1363                 ieee80211_recalc_smps(sdata->local, sdata);
1364                 mutex_unlock(&sdata->local->iflist_mtx);
1365                 return 0;
1366         }
1367
1368         ap = sdata->u.mgd.associated->bssid;
1369
1370         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1371                 if (sdata->u.mgd.powersave)
1372                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1373                 else
1374                         smps_mode = IEEE80211_SMPS_OFF;
1375         }
1376
1377         /* send SM PS frame to AP */
1378         err = ieee80211_send_smps_action(sdata, smps_mode,
1379                                          ap, ap);
1380         if (err)
1381                 sdata->u.mgd.req_smps = old_req;
1382
1383         return err;
1384 }
1385
1386 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1387                                     bool enabled, int timeout)
1388 {
1389         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1390         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1391         struct ieee80211_conf *conf = &local->hw.conf;
1392
1393         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1394                 return -EOPNOTSUPP;
1395
1396         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1397                 return -EOPNOTSUPP;
1398
1399         if (enabled == sdata->u.mgd.powersave &&
1400             timeout == conf->dynamic_ps_timeout)
1401                 return 0;
1402
1403         sdata->u.mgd.powersave = enabled;
1404         conf->dynamic_ps_timeout = timeout;
1405
1406         /* no change, but if automatic follow powersave */
1407         mutex_lock(&sdata->u.mgd.mtx);
1408         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1409         mutex_unlock(&sdata->u.mgd.mtx);
1410
1411         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1412                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1413
1414         ieee80211_recalc_ps(local, -1);
1415
1416         return 0;
1417 }
1418
1419 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1420                                          struct net_device *dev,
1421                                          s32 rssi_thold, u32 rssi_hyst)
1422 {
1423         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1424         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1425         struct ieee80211_vif *vif = &sdata->vif;
1426         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1427
1428         if (rssi_thold == bss_conf->cqm_rssi_thold &&
1429             rssi_hyst == bss_conf->cqm_rssi_hyst)
1430                 return 0;
1431
1432         bss_conf->cqm_rssi_thold = rssi_thold;
1433         bss_conf->cqm_rssi_hyst = rssi_hyst;
1434
1435         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1436                 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1437                         return -EOPNOTSUPP;
1438                 return 0;
1439         }
1440
1441         /* tell the driver upon association, unless already associated */
1442         if (sdata->u.mgd.associated)
1443                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1444
1445         return 0;
1446 }
1447
1448 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1449                                       struct net_device *dev,
1450                                       const u8 *addr,
1451                                       const struct cfg80211_bitrate_mask *mask)
1452 {
1453         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1454         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1455         int i;
1456
1457         /*
1458          * This _could_ be supported by providing a hook for
1459          * drivers for this function, but at this point it
1460          * doesn't seem worth bothering.
1461          */
1462         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1463                 return -EOPNOTSUPP;
1464
1465
1466         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1467                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1468
1469         return 0;
1470 }
1471
1472 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1473                                        struct net_device *dev,
1474                                        struct ieee80211_channel *chan,
1475                                        enum nl80211_channel_type channel_type,
1476                                        unsigned int duration,
1477                                        u64 *cookie)
1478 {
1479         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1480
1481         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1482                                               duration, cookie);
1483 }
1484
1485 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1486                                               struct net_device *dev,
1487                                               u64 cookie)
1488 {
1489         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1490
1491         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1492 }
1493
1494 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1495                             struct ieee80211_channel *chan,
1496                             enum nl80211_channel_type channel_type,
1497                             const u8 *buf, size_t len, u64 *cookie)
1498 {
1499         return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan,
1500                                     channel_type, buf, len, cookie);
1501 }
1502
1503 struct cfg80211_ops mac80211_config_ops = {
1504         .add_virtual_intf = ieee80211_add_iface,
1505         .del_virtual_intf = ieee80211_del_iface,
1506         .change_virtual_intf = ieee80211_change_iface,
1507         .add_key = ieee80211_add_key,
1508         .del_key = ieee80211_del_key,
1509         .get_key = ieee80211_get_key,
1510         .set_default_key = ieee80211_config_default_key,
1511         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1512         .add_beacon = ieee80211_add_beacon,
1513         .set_beacon = ieee80211_set_beacon,
1514         .del_beacon = ieee80211_del_beacon,
1515         .add_station = ieee80211_add_station,
1516         .del_station = ieee80211_del_station,
1517         .change_station = ieee80211_change_station,
1518         .get_station = ieee80211_get_station,
1519         .dump_station = ieee80211_dump_station,
1520         .dump_survey = ieee80211_dump_survey,
1521 #ifdef CONFIG_MAC80211_MESH
1522         .add_mpath = ieee80211_add_mpath,
1523         .del_mpath = ieee80211_del_mpath,
1524         .change_mpath = ieee80211_change_mpath,
1525         .get_mpath = ieee80211_get_mpath,
1526         .dump_mpath = ieee80211_dump_mpath,
1527         .set_mesh_params = ieee80211_set_mesh_params,
1528         .get_mesh_params = ieee80211_get_mesh_params,
1529 #endif
1530         .change_bss = ieee80211_change_bss,
1531         .set_txq_params = ieee80211_set_txq_params,
1532         .set_channel = ieee80211_set_channel,
1533         .suspend = ieee80211_suspend,
1534         .resume = ieee80211_resume,
1535         .scan = ieee80211_scan,
1536         .auth = ieee80211_auth,
1537         .assoc = ieee80211_assoc,
1538         .deauth = ieee80211_deauth,
1539         .disassoc = ieee80211_disassoc,
1540         .join_ibss = ieee80211_join_ibss,
1541         .leave_ibss = ieee80211_leave_ibss,
1542         .set_wiphy_params = ieee80211_set_wiphy_params,
1543         .set_tx_power = ieee80211_set_tx_power,
1544         .get_tx_power = ieee80211_get_tx_power,
1545         .set_wds_peer = ieee80211_set_wds_peer,
1546         .rfkill_poll = ieee80211_rfkill_poll,
1547         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1548         .set_power_mgmt = ieee80211_set_power_mgmt,
1549         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1550         .remain_on_channel = ieee80211_remain_on_channel,
1551         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1552         .action = ieee80211_action,
1553         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1554 };