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 bool nl80211_type_check(enum nl80211_iftype type)
  23 {
  24         switch (type) {
  25         case NL80211_IFTYPE_ADHOC:
  26         case NL80211_IFTYPE_STATION:
  27         case NL80211_IFTYPE_MONITOR:
  28 #ifdef CONFIG_MAC80211_MESH
  29         case NL80211_IFTYPE_MESH_POINT:
  30 #endif
  31         case NL80211_IFTYPE_AP:
  32         case NL80211_IFTYPE_AP_VLAN:
  33         case NL80211_IFTYPE_WDS:
  34                 return true;
  35         default:
  36                 return false;
  37         }
  38 }
  39
  40 static bool nl80211_params_check(enum nl80211_iftype type,
  41                                  struct vif_params *params)
  42 {
  43         if (!nl80211_type_check(type))
  44                 return false;
  45
  46         return true;
  47 }
  48
  49 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
  50                                enum nl80211_iftype type, u32 *flags,
  51                                struct vif_params *params)
  52 {
  53         struct ieee80211_local *local = wiphy_priv(wiphy);
  54         struct net_device *dev;
  55         struct ieee80211_sub_if_data *sdata;
  56         int err;
  57
  58         if (!nl80211_params_check(type, params))
  59                 return -EINVAL;
  60
  61         err = ieee80211_if_add(local, name, &dev, type, params);
  62         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
  63                 return err;
  64
  65         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  66         sdata->u.mntr_flags = *flags;
  67         return 0;
  68 }
  69
  70 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
  71 {
  72         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
  73
  74         return 0;
  75 }
  76
  77 static int ieee80211_change_iface(struct wiphy *wiphy,
  78                                   struct net_device *dev,
  79                                   enum nl80211_iftype type, u32 *flags,
  80                                   struct vif_params *params)
  81 {
  82         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  83         int ret;
  84
  85         if (ieee80211_sdata_running(sdata))
  86                 return -EBUSY;
  87
  88         if (!nl80211_params_check(type, params))
  89                 return -EINVAL;
  90
  91         ret = ieee80211_if_change_type(sdata, type);
  92         if (ret)
  93                 return ret;
  94
  95         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
  96                 ieee80211_sdata_set_mesh_id(sdata,
  97                                             params->mesh_id_len,
  98                                             params->mesh_id);
  99
 100         if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
 101                 return 0;
 102
 103         if (type == NL80211_IFTYPE_AP_VLAN &&
 104             params && params->use_4addr == 0)
 105                 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
 106         else if (type == NL80211_IFTYPE_STATION &&
 107                  params && params->use_4addr >= 0)
 108                 sdata->u.mgd.use_4addr = params->use_4addr;
 109
 110         sdata->u.mntr_flags = *flags;
 111         return 0;
 112 }
 113
 114 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 115                              u8 key_idx, const u8 *mac_addr,
 116                              struct key_params *params)
 117 {
 118         struct ieee80211_sub_if_data *sdata;
 119         struct sta_info *sta = NULL;
 120         enum ieee80211_key_alg alg;
 121         struct ieee80211_key *key;
 122         int err;
 123
 124         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 125
 126         switch (params->cipher) {
 127         case WLAN_CIPHER_SUITE_WEP40:
 128         case WLAN_CIPHER_SUITE_WEP104:
 129                 alg = ALG_WEP;
 130                 break;
 131         case WLAN_CIPHER_SUITE_TKIP:
 132                 alg = ALG_TKIP;
 133                 break;
 134         case WLAN_CIPHER_SUITE_CCMP:
 135                 alg = ALG_CCMP;
 136                 break;
 137         case WLAN_CIPHER_SUITE_AES_CMAC:
 138                 alg = ALG_AES_CMAC;
 139                 break;
 140         default:
 141                 return -EINVAL;
 142         }
 143
 144         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
 145                                   params->seq_len, params->seq);
 146         if (!key)
 147                 return -ENOMEM;
 148
 149         rcu_read_lock();
 150
 151         if (mac_addr) {
 152                 sta = sta_info_get_bss(sdata, mac_addr);
 153                 if (!sta) {
 154                         ieee80211_key_free(key);
 155                         err = -ENOENT;
 156                         goto out_unlock;
 157                 }
 158         }
 159
 160         ieee80211_key_link(key, sdata, sta);
 161
 162         err = 0;
 163  out_unlock:
 164         rcu_read_unlock();
 165
 166         return err;
 167 }
 168
 169 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 170                              u8 key_idx, const u8 *mac_addr)
 171 {
 172         struct ieee80211_sub_if_data *sdata;
 173         struct sta_info *sta;
 174         int ret;
 175
 176         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 177
 178         rcu_read_lock();
 179
 180         if (mac_addr) {
 181                 ret = -ENOENT;
 182
 183                 sta = sta_info_get_bss(sdata, mac_addr);
 184                 if (!sta)
 185                         goto out_unlock;
 186
 187                 if (sta->key) {
 188                         ieee80211_key_free(sta->key);
 189                         WARN_ON(sta->key);
 190                         ret = 0;
 191                 }
 192
 193                 goto out_unlock;
 194         }
 195
 196         if (!sdata->keys[key_idx]) {
 197                 ret = -ENOENT;
 198                 goto out_unlock;
 199         }
 200
 201         ieee80211_key_free(sdata->keys[key_idx]);
 202         WARN_ON(sdata->keys[key_idx]);
 203
 204         ret = 0;
 205  out_unlock:
 206         rcu_read_unlock();
 207
 208         return ret;
 209 }
 210
 211 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 212                              u8 key_idx, const u8 *mac_addr, void *cookie,
 213                              void (*callback)(void *cookie,
 214                                               struct key_params *params))
 215 {
 216         struct ieee80211_sub_if_data *sdata;
 217         struct sta_info *sta = NULL;
 218         u8 seq[6] = {0};
 219         struct key_params params;
 220         struct ieee80211_key *key;
 221         u32 iv32;
 222         u16 iv16;
 223         int err = -ENOENT;
 224
 225         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 226
 227         rcu_read_lock();
 228
 229         if (mac_addr) {
 230                 sta = sta_info_get_bss(sdata, mac_addr);
 231                 if (!sta)
 232                         goto out;
 233
 234                 key = sta->key;
 235         } else
 236                 key = sdata->keys[key_idx];
 237
 238         if (!key)
 239                 goto out;
 240
 241         memset(&params, 0, sizeof(params));
 242
 243         switch (key->conf.alg) {
 244         case ALG_TKIP:
 245                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
 246
 247                 iv32 = key->u.tkip.tx.iv32;
 248                 iv16 = key->u.tkip.tx.iv16;
 249
 250                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 251                         drv_get_tkip_seq(sdata->local,
 252                                          key->conf.hw_key_idx,
 253                                          &iv32, &iv16);
 254
 255                 seq[0] = iv16 & 0xff;
 256                 seq[1] = (iv16 >> 8) & 0xff;
 257                 seq[2] = iv32 & 0xff;
 258                 seq[3] = (iv32 >> 8) & 0xff;
 259                 seq[4] = (iv32 >> 16) & 0xff;
 260                 seq[5] = (iv32 >> 24) & 0xff;
 261                 params.seq = seq;
 262                 params.seq_len = 6;
 263                 break;
 264         case ALG_CCMP:
 265                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
 266                 seq[0] = key->u.ccmp.tx_pn[5];
 267                 seq[1] = key->u.ccmp.tx_pn[4];
 268                 seq[2] = key->u.ccmp.tx_pn[3];
 269                 seq[3] = key->u.ccmp.tx_pn[2];
 270                 seq[4] = key->u.ccmp.tx_pn[1];
 271                 seq[5] = key->u.ccmp.tx_pn[0];
 272                 params.seq = seq;
 273                 params.seq_len = 6;
 274                 break;
 275         case ALG_WEP:
 276                 if (key->conf.keylen == 5)
 277                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
 278                 else
 279                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
 280                 break;
 281         case ALG_AES_CMAC:
 282                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 283                 seq[0] = key->u.aes_cmac.tx_pn[5];
 284                 seq[1] = key->u.aes_cmac.tx_pn[4];
 285                 seq[2] = key->u.aes_cmac.tx_pn[3];
 286                 seq[3] = key->u.aes_cmac.tx_pn[2];
 287                 seq[4] = key->u.aes_cmac.tx_pn[1];
 288                 seq[5] = key->u.aes_cmac.tx_pn[0];
 289                 params.seq = seq;
 290                 params.seq_len = 6;
 291                 break;
 292         }
 293
 294         params.key = key->conf.key;
 295         params.key_len = key->conf.keylen;
 296
 297         callback(cookie, &params);
 298         err = 0;
 299
 300  out:
 301         rcu_read_unlock();
 302         return err;
 303 }
 304
 305 static int ieee80211_config_default_key(struct wiphy *wiphy,
 306                                         struct net_device *dev,
 307                                         u8 key_idx)
 308 {
 309         struct ieee80211_sub_if_data *sdata;
 310
 311         rcu_read_lock();
 312
 313         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 314         ieee80211_set_default_key(sdata, key_idx);
 315
 316         rcu_read_unlock();
 317
 318         return 0;
 319 }
 320
 321 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 322                                              struct net_device *dev,
 323                                              u8 key_idx)
 324 {
 325         struct ieee80211_sub_if_data *sdata;
 326
 327         rcu_read_lock();
 328
 329         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 330         ieee80211_set_default_mgmt_key(sdata, key_idx);
 331
 332         rcu_read_unlock();
 333
 334         return 0;
 335 }
 336
 337 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 338 {
 339         struct ieee80211_sub_if_data *sdata = sta->sdata;
 340
 341         sinfo->generation = sdata->local->sta_generation;
 342
 343         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 344                         STATION_INFO_RX_BYTES |
 345                         STATION_INFO_TX_BYTES |
 346                         STATION_INFO_RX_PACKETS |
 347                         STATION_INFO_TX_PACKETS |
 348                         STATION_INFO_TX_BITRATE;
 349
 350         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 351         sinfo->rx_bytes = sta->rx_bytes;
 352         sinfo->tx_bytes = sta->tx_bytes;
 353         sinfo->rx_packets = sta->rx_packets;
 354         sinfo->tx_packets = sta->tx_packets;
 355
 356         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 357             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 358                 sinfo->filled |= STATION_INFO_SIGNAL;
 359                 sinfo->signal = (s8)sta->last_signal;
 360         }
 361
 362         sinfo->txrate.flags = 0;
 363         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 364                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 365         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 366                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 367         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 368                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 369
 370         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 371                 struct ieee80211_supported_band *sband;
 372                 sband = sta->local->hw.wiphy->bands[
 373                                 sta->local->hw.conf.channel->band];
 374                 sinfo->txrate.legacy =
 375                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 376         } else
 377                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 378
 379         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 380 #ifdef CONFIG_MAC80211_MESH
 381                 sinfo->filled |= STATION_INFO_LLID |
 382                                  STATION_INFO_PLID |
 383                                  STATION_INFO_PLINK_STATE;
 384
 385                 sinfo->llid = le16_to_cpu(sta->llid);
 386                 sinfo->plid = le16_to_cpu(sta->plid);
 387                 sinfo->plink_state = sta->plink_state;
 388 #endif
 389         }
 390 }
 391
 392
 393 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 394                                  int idx, u8 *mac, struct station_info *sinfo)
 395 {
 396         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 397         struct sta_info *sta;
 398         int ret = -ENOENT;
 399
 400         rcu_read_lock();
 401
 402         sta = sta_info_get_by_idx(sdata, idx);
 403         if (sta) {
 404                 ret = 0;
 405                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 406                 sta_set_sinfo(sta, sinfo);
 407         }
 408
 409         rcu_read_unlock();
 410
 411         return ret;
 412 }
 413
 414 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 415                                  int idx, struct survey_info *survey)
 416 {
 417         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 418
 419         if (!local->ops->get_survey)
 420                 return -EOPNOTSUPP;
 421
 422         return drv_get_survey(local, idx, survey);
 423 }
 424
 425 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 426                                  u8 *mac, struct station_info *sinfo)
 427 {
 428         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 429         struct sta_info *sta;
 430         int ret = -ENOENT;
 431
 432         rcu_read_lock();
 433
 434         sta = sta_info_get_bss(sdata, mac);
 435         if (sta) {
 436                 ret = 0;
 437                 sta_set_sinfo(sta, sinfo);
 438         }
 439
 440         rcu_read_unlock();
 441
 442         return ret;
 443 }
 444
 445 /*
 446  * This handles both adding a beacon and setting new beacon info
 447  */
 448 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 449                                    struct beacon_parameters *params)
 450 {
 451         struct beacon_data *new, *old;
 452         int new_head_len, new_tail_len;
 453         int size;
 454         int err = -EINVAL;
 455
 456         old = sdata->u.ap.beacon;
 457
 458         /* head must not be zero-length */
 459         if (params->head && !params->head_len)
 460                 return -EINVAL;
 461
 462         /*
 463          * This is a kludge. beacon interval should really be part
 464          * of the beacon information.
 465          */
 466         if (params->interval &&
 467             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 468                 sdata->vif.bss_conf.beacon_int = params->interval;
 469                 ieee80211_bss_info_change_notify(sdata,
 470                                                  BSS_CHANGED_BEACON_INT);
 471         }
 472
 473         /* Need to have a beacon head if we don't have one yet */
 474         if (!params->head && !old)
 475                 return err;
 476
 477         /* sorry, no way to start beaconing without dtim period */
 478         if (!params->dtim_period && !old)
 479                 return err;
 480
 481         /* new or old head? */
 482         if (params->head)
 483                 new_head_len = params->head_len;
 484         else
 485                 new_head_len = old->head_len;
 486
 487         /* new or old tail? */
 488         if (params->tail || !old)
 489                 /* params->tail_len will be zero for !params->tail */
 490                 new_tail_len = params->tail_len;
 491         else
 492                 new_tail_len = old->tail_len;
 493
 494         size = sizeof(*new) + new_head_len + new_tail_len;
 495
 496         new = kzalloc(size, GFP_KERNEL);
 497         if (!new)
 498                 return -ENOMEM;
 499
 500         /* start filling the new info now */
 501
 502         /* new or old dtim period? */
 503         if (params->dtim_period)
 504                 new->dtim_period = params->dtim_period;
 505         else
 506                 new->dtim_period = old->dtim_period;
 507
 508         /*
 509          * pointers go into the block we allocated,
 510          * memory is | beacon_data | head | tail |
 511          */
 512         new->head = ((u8 *) new) + sizeof(*new);
 513         new->tail = new->head + new_head_len;
 514         new->head_len = new_head_len;
 515         new->tail_len = new_tail_len;
 516
 517         /* copy in head */
 518         if (params->head)
 519                 memcpy(new->head, params->head, new_head_len);
 520         else
 521                 memcpy(new->head, old->head, new_head_len);
 522
 523         /* copy in optional tail */
 524         if (params->tail)
 525                 memcpy(new->tail, params->tail, new_tail_len);
 526         else
 527                 if (old)
 528                         memcpy(new->tail, old->tail, new_tail_len);
 529
 530         sdata->vif.bss_conf.dtim_period = new->dtim_period;
 531
 532         rcu_assign_pointer(sdata->u.ap.beacon, new);
 533
 534         synchronize_rcu();
 535
 536         kfree(old);
 537
 538         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 539                                                 BSS_CHANGED_BEACON);
 540         return 0;
 541 }
 542
 543 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 544                                 struct beacon_parameters *params)
 545 {
 546         struct ieee80211_sub_if_data *sdata;
 547         struct beacon_data *old;
 548
 549         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 550
 551         old = sdata->u.ap.beacon;
 552
 553         if (old)
 554                 return -EALREADY;
 555
 556         return ieee80211_config_beacon(sdata, params);
 557 }
 558
 559 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 560                                 struct beacon_parameters *params)
 561 {
 562         struct ieee80211_sub_if_data *sdata;
 563         struct beacon_data *old;
 564
 565         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 566
 567         old = sdata->u.ap.beacon;
 568
 569         if (!old)
 570                 return -ENOENT;
 571
 572         return ieee80211_config_beacon(sdata, params);
 573 }
 574
 575 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 576 {
 577         struct ieee80211_sub_if_data *sdata;
 578         struct beacon_data *old;
 579
 580         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 581
 582         old = sdata->u.ap.beacon;
 583
 584         if (!old)
 585                 return -ENOENT;
 586
 587         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 588         synchronize_rcu();
 589         kfree(old);
 590
 591         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 592         return 0;
 593 }
 594
 595 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 596 struct iapp_layer2_update {
 597         u8 da[ETH_ALEN];        /* broadcast */
 598         u8 sa[ETH_ALEN];        /* STA addr */
 599         __be16 len;             /* 6 */
 600         u8 dsap;                /* 0 */
 601         u8 ssap;                /* 0 */
 602         u8 control;
 603         u8 xid_info[3];
 604 } __attribute__ ((packed));
 605
 606 static void ieee80211_send_layer2_update(struct sta_info *sta)
 607 {
 608         struct iapp_layer2_update *msg;
 609         struct sk_buff *skb;
 610
 611         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 612          * bridge devices */
 613
 614         skb = dev_alloc_skb(sizeof(*msg));
 615         if (!skb)
 616                 return;
 617         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 618
 619         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 620          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 621
 622         memset(msg->da, 0xff, ETH_ALEN);
 623         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 624         msg->len = htons(6);
 625         msg->dsap = 0;
 626         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 627         msg->control = 0xaf;    /* XID response lsb.1111F101.
 628                                  * F=0 (no poll command; unsolicited frame) */
 629         msg->xid_info[0] = 0x81;        /* XID format identifier */
 630         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 631         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 632
 633         skb->dev = sta->sdata->dev;
 634         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 635         memset(skb->cb, 0, sizeof(skb->cb));
 636         netif_rx(skb);
 637 }
 638
 639 static void sta_apply_parameters(struct ieee80211_local *local,
 640                                  struct sta_info *sta,
 641                                  struct station_parameters *params)
 642 {
 643         u32 rates;
 644         int i, j;
 645         struct ieee80211_supported_band *sband;
 646         struct ieee80211_sub_if_data *sdata = sta->sdata;
 647         u32 mask, set;
 648
 649         sband = local->hw.wiphy->bands[local->oper_channel->band];
 650
 651         spin_lock_bh(&sta->lock);
 652         mask = params->sta_flags_mask;
 653         set = params->sta_flags_set;
 654
 655         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 656                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 657                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 658                         sta->flags |= WLAN_STA_AUTHORIZED;
 659         }
 660
 661         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 662                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 663                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 664                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 665         }
 666
 667         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 668                 sta->flags &= ~WLAN_STA_WME;
 669                 if (set & BIT(NL80211_STA_FLAG_WME))
 670                         sta->flags |= WLAN_STA_WME;
 671         }
 672
 673         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 674                 sta->flags &= ~WLAN_STA_MFP;
 675                 if (set & BIT(NL80211_STA_FLAG_MFP))
 676                         sta->flags |= WLAN_STA_MFP;
 677         }
 678         spin_unlock_bh(&sta->lock);
 679
 680         /*
 681          * cfg80211 validates this (1-2007) and allows setting the AID
 682          * only when creating a new station entry
 683          */
 684         if (params->aid)
 685                 sta->sta.aid = params->aid;
 686
 687         /*
 688          * FIXME: updating the following information is racy when this
 689          *        function is called from ieee80211_change_station().
 690          *        However, all this information should be static so
 691          *        maybe we should just reject attemps to change it.
 692          */
 693
 694         if (params->listen_interval >= 0)
 695                 sta->listen_interval = params->listen_interval;
 696
 697         if (params->supported_rates) {
 698                 rates = 0;
 699
 700                 for (i = 0; i < params->supported_rates_len; i++) {
 701                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 702                         for (j = 0; j < sband->n_bitrates; j++) {
 703                                 if (sband->bitrates[j].bitrate == rate)
 704                                         rates |= BIT(j);
 705                         }
 706                 }
 707                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 708         }
 709
 710         if (params->ht_capa)
 711                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 712                                                   params->ht_capa,
 713                                                   &sta->sta.ht_cap);
 714
 715         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 716                 switch (params->plink_action) {
 717                 case PLINK_ACTION_OPEN:
 718                         mesh_plink_open(sta);
 719                         break;
 720                 case PLINK_ACTION_BLOCK:
 721                         mesh_plink_block(sta);
 722                         break;
 723                 }
 724         }
 725 }
 726
 727 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 728                                  u8 *mac, struct station_parameters *params)
 729 {
 730         struct ieee80211_local *local = wiphy_priv(wiphy);
 731         struct sta_info *sta;
 732         struct ieee80211_sub_if_data *sdata;
 733         int err;
 734         int layer2_update;
 735
 736         if (params->vlan) {
 737                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 738
 739                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 740                     sdata->vif.type != NL80211_IFTYPE_AP)
 741                         return -EINVAL;
 742         } else
 743                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 744
 745         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
 746                 return -EINVAL;
 747
 748         if (is_multicast_ether_addr(mac))
 749                 return -EINVAL;
 750
 751         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 752         if (!sta)
 753                 return -ENOMEM;
 754
 755         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 756
 757         sta_apply_parameters(local, sta, params);
 758
 759         rate_control_rate_init(sta);
 760
 761         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 762                 sdata->vif.type == NL80211_IFTYPE_AP;
 763
 764         err = sta_info_insert_rcu(sta);
 765         if (err) {
 766                 rcu_read_unlock();
 767                 return err;
 768         }
 769
 770         if (layer2_update)
 771                 ieee80211_send_layer2_update(sta);
 772
 773         rcu_read_unlock();
 774
 775         return 0;
 776 }
 777
 778 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 779                                  u8 *mac)
 780 {
 781         struct ieee80211_local *local = wiphy_priv(wiphy);
 782         struct ieee80211_sub_if_data *sdata;
 783
 784         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 785
 786         if (mac)
 787                 return sta_info_destroy_addr_bss(sdata, mac);
 788
 789         sta_info_flush(local, sdata);
 790         return 0;
 791 }
 792
 793 static int ieee80211_change_station(struct wiphy *wiphy,
 794                                     struct net_device *dev,
 795                                     u8 *mac,
 796                                     struct station_parameters *params)
 797 {
 798         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 799         struct ieee80211_local *local = wiphy_priv(wiphy);
 800         struct sta_info *sta;
 801         struct ieee80211_sub_if_data *vlansdata;
 802
 803         rcu_read_lock();
 804
 805         sta = sta_info_get_bss(sdata, mac);
 806         if (!sta) {
 807                 rcu_read_unlock();
 808                 return -ENOENT;
 809         }
 810
 811         if (params->vlan && params->vlan != sta->sdata->dev) {
 812                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 813
 814                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 815                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 816                         rcu_read_unlock();
 817                         return -EINVAL;
 818                 }
 819
 820                 if (params->vlan->ieee80211_ptr->use_4addr) {
 821                         if (vlansdata->u.vlan.sta) {
 822                                 rcu_read_unlock();
 823                                 return -EBUSY;
 824                         }
 825
 826                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 827                 }
 828
 829                 sta->sdata = vlansdata;
 830                 ieee80211_send_layer2_update(sta);
 831         }
 832
 833         sta_apply_parameters(local, sta, params);
 834
 835         rcu_read_unlock();
 836
 837         return 0;
 838 }
 839
 840 #ifdef CONFIG_MAC80211_MESH
 841 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 842                                  u8 *dst, u8 *next_hop)
 843 {
 844         struct ieee80211_sub_if_data *sdata;
 845         struct mesh_path *mpath;
 846         struct sta_info *sta;
 847         int err;
 848
 849         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 850
 851         rcu_read_lock();
 852         sta = sta_info_get(sdata, next_hop);
 853         if (!sta) {
 854                 rcu_read_unlock();
 855                 return -ENOENT;
 856         }
 857
 858         err = mesh_path_add(dst, sdata);
 859         if (err) {
 860                 rcu_read_unlock();
 861                 return err;
 862         }
 863
 864         mpath = mesh_path_lookup(dst, sdata);
 865         if (!mpath) {
 866                 rcu_read_unlock();
 867                 return -ENXIO;
 868         }
 869         mesh_path_fix_nexthop(mpath, sta);
 870
 871         rcu_read_unlock();
 872         return 0;
 873 }
 874
 875 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 876                                  u8 *dst)
 877 {
 878         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 879
 880         if (dst)
 881                 return mesh_path_del(dst, sdata);
 882
 883         mesh_path_flush(sdata);
 884         return 0;
 885 }
 886
 887 static int ieee80211_change_mpath(struct wiphy *wiphy,
 888                                     struct net_device *dev,
 889                                     u8 *dst, u8 *next_hop)
 890 {
 891         struct ieee80211_sub_if_data *sdata;
 892         struct mesh_path *mpath;
 893         struct sta_info *sta;
 894
 895         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 896
 897         rcu_read_lock();
 898
 899         sta = sta_info_get(sdata, next_hop);
 900         if (!sta) {
 901                 rcu_read_unlock();
 902                 return -ENOENT;
 903         }
 904
 905         mpath = mesh_path_lookup(dst, sdata);
 906         if (!mpath) {
 907                 rcu_read_unlock();
 908                 return -ENOENT;
 909         }
 910
 911         mesh_path_fix_nexthop(mpath, sta);
 912
 913         rcu_read_unlock();
 914         return 0;
 915 }
 916
 917 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 918                             struct mpath_info *pinfo)
 919 {
 920         if (mpath->next_hop)
 921                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 922         else
 923                 memset(next_hop, 0, ETH_ALEN);
 924
 925         pinfo->generation = mesh_paths_generation;
 926
 927         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 928                         MPATH_INFO_SN |
 929                         MPATH_INFO_METRIC |
 930                         MPATH_INFO_EXPTIME |
 931                         MPATH_INFO_DISCOVERY_TIMEOUT |
 932                         MPATH_INFO_DISCOVERY_RETRIES |
 933                         MPATH_INFO_FLAGS;
 934
 935         pinfo->frame_qlen = mpath->frame_queue.qlen;
 936         pinfo->sn = mpath->sn;
 937         pinfo->metric = mpath->metric;
 938         if (time_before(jiffies, mpath->exp_time))
 939                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 940         pinfo->discovery_timeout =
 941                         jiffies_to_msecs(mpath->discovery_timeout);
 942         pinfo->discovery_retries = mpath->discovery_retries;
 943         pinfo->flags = 0;
 944         if (mpath->flags & MESH_PATH_ACTIVE)
 945                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 946         if (mpath->flags & MESH_PATH_RESOLVING)
 947                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 948         if (mpath->flags & MESH_PATH_SN_VALID)
 949                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 950         if (mpath->flags & MESH_PATH_FIXED)
 951                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 952         if (mpath->flags & MESH_PATH_RESOLVING)
 953                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 954
 955         pinfo->flags = mpath->flags;
 956 }
 957
 958 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 959                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 960
 961 {
 962         struct ieee80211_sub_if_data *sdata;
 963         struct mesh_path *mpath;
 964
 965         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 966
 967         rcu_read_lock();
 968         mpath = mesh_path_lookup(dst, sdata);
 969         if (!mpath) {
 970                 rcu_read_unlock();
 971                 return -ENOENT;
 972         }
 973         memcpy(dst, mpath->dst, ETH_ALEN);
 974         mpath_set_pinfo(mpath, next_hop, pinfo);
 975         rcu_read_unlock();
 976         return 0;
 977 }
 978
 979 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 980                                  int idx, u8 *dst, u8 *next_hop,
 981                                  struct mpath_info *pinfo)
 982 {
 983         struct ieee80211_sub_if_data *sdata;
 984         struct mesh_path *mpath;
 985
 986         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 987
 988         rcu_read_lock();
 989         mpath = mesh_path_lookup_by_idx(idx, sdata);
 990         if (!mpath) {
 991                 rcu_read_unlock();
 992                 return -ENOENT;
 993         }
 994         memcpy(dst, mpath->dst, ETH_ALEN);
 995         mpath_set_pinfo(mpath, next_hop, pinfo);
 996         rcu_read_unlock();
 997         return 0;
 998 }
 999
1000 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1001                                 struct net_device *dev,
1002                                 struct mesh_config *conf)
1003 {
1004         struct ieee80211_sub_if_data *sdata;
1005         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1006
1007         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1008         return 0;
1009 }
1010
1011 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1012 {
1013         return (mask >> (parm-1)) & 0x1;
1014 }
1015
1016 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1017                                 struct net_device *dev,
1018                                 const struct mesh_config *nconf, u32 mask)
1019 {
1020         struct mesh_config *conf;
1021         struct ieee80211_sub_if_data *sdata;
1022         struct ieee80211_if_mesh *ifmsh;
1023
1024         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1025         ifmsh = &sdata->u.mesh;
1026
1027         /* Set the config options which we are interested in setting */
1028         conf = &(sdata->u.mesh.mshcfg);
1029         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1030                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1031         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1032                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1033         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1034                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1035         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1036                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1037         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1038                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1039         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1040                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1041         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1042                 conf->auto_open_plinks = nconf->auto_open_plinks;
1043         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1044                 conf->dot11MeshHWMPmaxPREQretries =
1045                         nconf->dot11MeshHWMPmaxPREQretries;
1046         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1047                 conf->path_refresh_time = nconf->path_refresh_time;
1048         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1049                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1050         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1051                 conf->dot11MeshHWMPactivePathTimeout =
1052                         nconf->dot11MeshHWMPactivePathTimeout;
1053         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1054                 conf->dot11MeshHWMPpreqMinInterval =
1055                         nconf->dot11MeshHWMPpreqMinInterval;
1056         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1057                            mask))
1058                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1059                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1060         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1061                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1062                 ieee80211_mesh_root_setup(ifmsh);
1063         }
1064         return 0;
1065 }
1066
1067 #endif
1068
1069 static int ieee80211_change_bss(struct wiphy *wiphy,
1070                                 struct net_device *dev,
1071                                 struct bss_parameters *params)
1072 {
1073         struct ieee80211_sub_if_data *sdata;
1074         u32 changed = 0;
1075
1076         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1077
1078         if (params->use_cts_prot >= 0) {
1079                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1080                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1081         }
1082         if (params->use_short_preamble >= 0) {
1083                 sdata->vif.bss_conf.use_short_preamble =
1084                         params->use_short_preamble;
1085                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1086         }
1087
1088         if (!sdata->vif.bss_conf.use_short_slot &&
1089             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1090                 sdata->vif.bss_conf.use_short_slot = true;
1091                 changed |= BSS_CHANGED_ERP_SLOT;
1092         }
1093
1094         if (params->use_short_slot_time >= 0) {
1095                 sdata->vif.bss_conf.use_short_slot =
1096                         params->use_short_slot_time;
1097                 changed |= BSS_CHANGED_ERP_SLOT;
1098         }
1099
1100         if (params->basic_rates) {
1101                 int i, j;
1102                 u32 rates = 0;
1103                 struct ieee80211_local *local = wiphy_priv(wiphy);
1104                 struct ieee80211_supported_band *sband =
1105                         wiphy->bands[local->oper_channel->band];
1106
1107                 for (i = 0; i < params->basic_rates_len; i++) {
1108                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1109                         for (j = 0; j < sband->n_bitrates; j++) {
1110                                 if (sband->bitrates[j].bitrate == rate)
1111                                         rates |= BIT(j);
1112                         }
1113                 }
1114                 sdata->vif.bss_conf.basic_rates = rates;
1115                 changed |= BSS_CHANGED_BASIC_RATES;
1116         }
1117
1118         ieee80211_bss_info_change_notify(sdata, changed);
1119
1120         return 0;
1121 }
1122
1123 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1124                                     struct ieee80211_txq_params *params)
1125 {
1126         struct ieee80211_local *local = wiphy_priv(wiphy);
1127         struct ieee80211_tx_queue_params p;
1128
1129         if (!local->ops->conf_tx)
1130                 return -EOPNOTSUPP;
1131
1132         memset(&p, 0, sizeof(p));
1133         p.aifs = params->aifs;
1134         p.cw_max = params->cwmax;
1135         p.cw_min = params->cwmin;
1136         p.txop = params->txop;
1137
1138         /*
1139          * Setting tx queue params disables u-apsd because it's only
1140          * called in master mode.
1141          */
1142         p.uapsd = false;
1143
1144         if (drv_conf_tx(local, params->queue, &p)) {
1145                 printk(KERN_DEBUG "%s: failed to set TX queue "
1146                        "parameters for queue %d\n",
1147                        wiphy_name(local->hw.wiphy), params->queue);
1148                 return -EINVAL;
1149         }
1150
1151         /* enable WMM or activate new settings */
1152         local->hw.conf.flags |= IEEE80211_CONF_QOS;
1153         drv_config(local, IEEE80211_CONF_CHANGE_QOS);
1154
1155         return 0;
1156 }
1157
1158 static int ieee80211_set_channel(struct wiphy *wiphy,
1159                                  struct ieee80211_channel *chan,
1160                                  enum nl80211_channel_type channel_type)
1161 {
1162         struct ieee80211_local *local = wiphy_priv(wiphy);
1163
1164         local->oper_channel = chan;
1165         local->oper_channel_type = channel_type;
1166
1167         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1168 }
1169
1170 #ifdef CONFIG_PM
1171 static int ieee80211_suspend(struct wiphy *wiphy)
1172 {
1173         return __ieee80211_suspend(wiphy_priv(wiphy));
1174 }
1175
1176 static int ieee80211_resume(struct wiphy *wiphy)
1177 {
1178         return __ieee80211_resume(wiphy_priv(wiphy));
1179 }
1180 #else
1181 #define ieee80211_suspend NULL
1182 #define ieee80211_resume NULL
1183 #endif
1184
1185 static int ieee80211_scan(struct wiphy *wiphy,
1186                           struct net_device *dev,
1187                           struct cfg80211_scan_request *req)
1188 {
1189         struct ieee80211_sub_if_data *sdata;
1190
1191         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1192
1193         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1194             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1195             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1196             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1197                 return -EOPNOTSUPP;
1198
1199         return ieee80211_request_scan(sdata, req);
1200 }
1201
1202 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1203                           struct cfg80211_auth_request *req)
1204 {
1205         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1206 }
1207
1208 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1209                            struct cfg80211_assoc_request *req)
1210 {
1211         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1212 }
1213
1214 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1215                             struct cfg80211_deauth_request *req,
1216                             void *cookie)
1217 {
1218         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1219                                     req, cookie);
1220 }
1221
1222 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1223                               struct cfg80211_disassoc_request *req,
1224                               void *cookie)
1225 {
1226         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1227                                       req, cookie);
1228 }
1229
1230 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1231                                struct cfg80211_ibss_params *params)
1232 {
1233         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1234
1235         return ieee80211_ibss_join(sdata, params);
1236 }
1237
1238 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1239 {
1240         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1241
1242         return ieee80211_ibss_leave(sdata);
1243 }
1244
1245 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1246 {
1247         struct ieee80211_local *local = wiphy_priv(wiphy);
1248         int err;
1249
1250         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1251                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1252
1253                 if (err)
1254                         return err;
1255         }
1256
1257         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1258                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1259
1260                 if (err)
1261                         return err;
1262         }
1263
1264         if (changed & WIPHY_PARAM_RETRY_SHORT)
1265                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1266         if (changed & WIPHY_PARAM_RETRY_LONG)
1267                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1268         if (changed &
1269             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1270                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1271
1272         return 0;
1273 }
1274
1275 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1276                                   enum tx_power_setting type, int dbm)
1277 {
1278         struct ieee80211_local *local = wiphy_priv(wiphy);
1279         struct ieee80211_channel *chan = local->hw.conf.channel;
1280         u32 changes = 0;
1281
1282         switch (type) {
1283         case TX_POWER_AUTOMATIC:
1284                 local->user_power_level = -1;
1285                 break;
1286         case TX_POWER_LIMITED:
1287                 if (dbm < 0)
1288                         return -EINVAL;
1289                 local->user_power_level = dbm;
1290                 break;
1291         case TX_POWER_FIXED:
1292                 if (dbm < 0)
1293                         return -EINVAL;
1294                 /* TODO: move to cfg80211 when it knows the channel */
1295                 if (dbm > chan->max_power)
1296                         return -EINVAL;
1297                 local->user_power_level = dbm;
1298                 break;
1299         }
1300
1301         ieee80211_hw_config(local, changes);
1302
1303         return 0;
1304 }
1305
1306 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1307 {
1308         struct ieee80211_local *local = wiphy_priv(wiphy);
1309
1310         *dbm = local->hw.conf.power_level;
1311
1312         return 0;
1313 }
1314
1315 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1316                                   u8 *addr)
1317 {
1318         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1319
1320         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1321
1322         return 0;
1323 }
1324
1325 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1326 {
1327         struct ieee80211_local *local = wiphy_priv(wiphy);
1328
1329         drv_rfkill_poll(local);
1330 }
1331
1332 #ifdef CONFIG_NL80211_TESTMODE
1333 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1334 {
1335         struct ieee80211_local *local = wiphy_priv(wiphy);
1336
1337         if (!local->ops->testmode_cmd)
1338                 return -EOPNOTSUPP;
1339
1340         return local->ops->testmode_cmd(&local->hw, data, len);
1341 }
1342 #endif
1343
1344 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1345                              enum ieee80211_smps_mode smps_mode)
1346 {
1347         const u8 *ap;
1348         enum ieee80211_smps_mode old_req;
1349         int err;
1350
1351         old_req = sdata->u.mgd.req_smps;
1352         sdata->u.mgd.req_smps = smps_mode;
1353
1354         if (old_req == smps_mode &&
1355             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1356                 return 0;
1357
1358         /*
1359          * If not associated, or current association is not an HT
1360          * association, there's no need to send an action frame.
1361          */
1362         if (!sdata->u.mgd.associated ||
1363             sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
1364                 mutex_lock(&sdata->local->iflist_mtx);
1365                 ieee80211_recalc_smps(sdata->local, sdata);
1366                 mutex_unlock(&sdata->local->iflist_mtx);
1367                 return 0;
1368         }
1369
1370         ap = sdata->u.mgd.associated->bssid;
1371
1372         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1373                 if (sdata->u.mgd.powersave)
1374                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1375                 else
1376                         smps_mode = IEEE80211_SMPS_OFF;
1377         }
1378
1379         /* send SM PS frame to AP */
1380         err = ieee80211_send_smps_action(sdata, smps_mode,
1381                                          ap, ap);
1382         if (err)
1383                 sdata->u.mgd.req_smps = old_req;
1384
1385         return err;
1386 }
1387
1388 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1389                                     bool enabled, int timeout)
1390 {
1391         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1392         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1393         struct ieee80211_conf *conf = &local->hw.conf;
1394
1395         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1396                 return -EOPNOTSUPP;
1397
1398         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1399                 return -EOPNOTSUPP;
1400
1401         if (enabled == sdata->u.mgd.powersave &&
1402             timeout == conf->dynamic_ps_timeout)
1403                 return 0;
1404
1405         sdata->u.mgd.powersave = enabled;
1406         conf->dynamic_ps_timeout = timeout;
1407
1408         /* no change, but if automatic follow powersave */
1409         mutex_lock(&sdata->u.mgd.mtx);
1410         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1411         mutex_unlock(&sdata->u.mgd.mtx);
1412
1413         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1414                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1415
1416         ieee80211_recalc_ps(local, -1);
1417
1418         return 0;
1419 }
1420
1421 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1422                                          struct net_device *dev,
1423                                          s32 rssi_thold, u32 rssi_hyst)
1424 {
1425         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1426         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1427         struct ieee80211_vif *vif = &sdata->vif;
1428         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1429
1430         if (rssi_thold == bss_conf->cqm_rssi_thold &&
1431             rssi_hyst == bss_conf->cqm_rssi_hyst)
1432                 return 0;
1433
1434         bss_conf->cqm_rssi_thold = rssi_thold;
1435         bss_conf->cqm_rssi_hyst = rssi_hyst;
1436
1437         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1438                 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1439                         return -EOPNOTSUPP;
1440                 return 0;
1441         }
1442
1443         /* tell the driver upon association, unless already associated */
1444         if (sdata->u.mgd.associated)
1445                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1446
1447         return 0;
1448 }
1449
1450 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1451                                       struct net_device *dev,
1452                                       const u8 *addr,
1453                                       const struct cfg80211_bitrate_mask *mask)
1454 {
1455         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1456         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1457         int i;
1458
1459         /*
1460          * This _could_ be supported by providing a hook for
1461          * drivers for this function, but at this point it
1462          * doesn't seem worth bothering.
1463          */
1464         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1465                 return -EOPNOTSUPP;
1466
1467
1468         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1469                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1470
1471         return 0;
1472 }
1473
1474 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1475                                        struct net_device *dev,
1476                                        struct ieee80211_channel *chan,
1477                                        enum nl80211_channel_type channel_type,
1478                                        unsigned int duration,
1479                                        u64 *cookie)
1480 {
1481         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1482
1483         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1484                                               duration, cookie);
1485 }
1486
1487 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1488                                               struct net_device *dev,
1489                                               u64 cookie)
1490 {
1491         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1492
1493         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1494 }
1495
1496 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1497                             struct ieee80211_channel *chan,
1498                             enum nl80211_channel_type channel_type,
1499                             const u8 *buf, size_t len, u64 *cookie)
1500 {
1501         return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan,
1502                                     channel_type, buf, len, cookie);
1503 }
1504
1505 struct cfg80211_ops mac80211_config_ops = {
1506         .add_virtual_intf = ieee80211_add_iface,
1507         .del_virtual_intf = ieee80211_del_iface,
1508         .change_virtual_intf = ieee80211_change_iface,
1509         .add_key = ieee80211_add_key,
1510         .del_key = ieee80211_del_key,
1511         .get_key = ieee80211_get_key,
1512         .set_default_key = ieee80211_config_default_key,
1513         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1514         .add_beacon = ieee80211_add_beacon,
1515         .set_beacon = ieee80211_set_beacon,
1516         .del_beacon = ieee80211_del_beacon,
1517         .add_station = ieee80211_add_station,
1518         .del_station = ieee80211_del_station,
1519         .change_station = ieee80211_change_station,
1520         .get_station = ieee80211_get_station,
1521         .dump_station = ieee80211_dump_station,
1522         .dump_survey = ieee80211_dump_survey,
1523 #ifdef CONFIG_MAC80211_MESH
1524         .add_mpath = ieee80211_add_mpath,
1525         .del_mpath = ieee80211_del_mpath,
1526         .change_mpath = ieee80211_change_mpath,
1527         .get_mpath = ieee80211_get_mpath,
1528         .dump_mpath = ieee80211_dump_mpath,
1529         .set_mesh_params = ieee80211_set_mesh_params,
1530         .get_mesh_params = ieee80211_get_mesh_params,
1531 #endif
1532         .change_bss = ieee80211_change_bss,
1533         .set_txq_params = ieee80211_set_txq_params,
1534         .set_channel = ieee80211_set_channel,
1535         .suspend = ieee80211_suspend,
1536         .resume = ieee80211_resume,
1537         .scan = ieee80211_scan,
1538         .auth = ieee80211_auth,
1539         .assoc = ieee80211_assoc,
1540         .deauth = ieee80211_deauth,
1541         .disassoc = ieee80211_disassoc,
1542         .join_ibss = ieee80211_join_ibss,
1543         .leave_ibss = ieee80211_leave_ibss,
1544         .set_wiphy_params = ieee80211_set_wiphy_params,
1545         .set_tx_power = ieee80211_set_tx_power,
1546         .get_tx_power = ieee80211_get_tx_power,
1547         .set_wds_peer = ieee80211_set_wds_peer,
1548         .rfkill_poll = ieee80211_rfkill_poll,
1549         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1550         .set_power_mgmt = ieee80211_set_power_mgmt,
1551         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1552         .remain_on_channel = ieee80211_remain_on_channel,
1553         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1554         .action = ieee80211_action,
1555         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1556 };