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_get_station(struct wiphy *wiphy, struct net_device *dev,
 415                                  u8 *mac, struct station_info *sinfo)
 416 {
 417         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 418         struct sta_info *sta;
 419         int ret = -ENOENT;
 420
 421         rcu_read_lock();
 422
 423         sta = sta_info_get_bss(sdata, mac);
 424         if (sta) {
 425                 ret = 0;
 426                 sta_set_sinfo(sta, sinfo);
 427         }
 428
 429         rcu_read_unlock();
 430
 431         return ret;
 432 }
 433
 434 /*
 435  * This handles both adding a beacon and setting new beacon info
 436  */
 437 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 438                                    struct beacon_parameters *params)
 439 {
 440         struct beacon_data *new, *old;
 441         int new_head_len, new_tail_len;
 442         int size;
 443         int err = -EINVAL;
 444
 445         old = sdata->u.ap.beacon;
 446
 447         /* head must not be zero-length */
 448         if (params->head && !params->head_len)
 449                 return -EINVAL;
 450
 451         /*
 452          * This is a kludge. beacon interval should really be part
 453          * of the beacon information.
 454          */
 455         if (params->interval &&
 456             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 457                 sdata->vif.bss_conf.beacon_int = params->interval;
 458                 ieee80211_bss_info_change_notify(sdata,
 459                                                  BSS_CHANGED_BEACON_INT);
 460         }
 461
 462         /* Need to have a beacon head if we don't have one yet */
 463         if (!params->head && !old)
 464                 return err;
 465
 466         /* sorry, no way to start beaconing without dtim period */
 467         if (!params->dtim_period && !old)
 468                 return err;
 469
 470         /* new or old head? */
 471         if (params->head)
 472                 new_head_len = params->head_len;
 473         else
 474                 new_head_len = old->head_len;
 475
 476         /* new or old tail? */
 477         if (params->tail || !old)
 478                 /* params->tail_len will be zero for !params->tail */
 479                 new_tail_len = params->tail_len;
 480         else
 481                 new_tail_len = old->tail_len;
 482
 483         size = sizeof(*new) + new_head_len + new_tail_len;
 484
 485         new = kzalloc(size, GFP_KERNEL);
 486         if (!new)
 487                 return -ENOMEM;
 488
 489         /* start filling the new info now */
 490
 491         /* new or old dtim period? */
 492         if (params->dtim_period)
 493                 new->dtim_period = params->dtim_period;
 494         else
 495                 new->dtim_period = old->dtim_period;
 496
 497         /*
 498          * pointers go into the block we allocated,
 499          * memory is | beacon_data | head | tail |
 500          */
 501         new->head = ((u8 *) new) + sizeof(*new);
 502         new->tail = new->head + new_head_len;
 503         new->head_len = new_head_len;
 504         new->tail_len = new_tail_len;
 505
 506         /* copy in head */
 507         if (params->head)
 508                 memcpy(new->head, params->head, new_head_len);
 509         else
 510                 memcpy(new->head, old->head, new_head_len);
 511
 512         /* copy in optional tail */
 513         if (params->tail)
 514                 memcpy(new->tail, params->tail, new_tail_len);
 515         else
 516                 if (old)
 517                         memcpy(new->tail, old->tail, new_tail_len);
 518
 519         sdata->vif.bss_conf.dtim_period = new->dtim_period;
 520
 521         rcu_assign_pointer(sdata->u.ap.beacon, new);
 522
 523         synchronize_rcu();
 524
 525         kfree(old);
 526
 527         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 528                                                 BSS_CHANGED_BEACON);
 529         return 0;
 530 }
 531
 532 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 533                                 struct beacon_parameters *params)
 534 {
 535         struct ieee80211_sub_if_data *sdata;
 536         struct beacon_data *old;
 537
 538         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 539
 540         old = sdata->u.ap.beacon;
 541
 542         if (old)
 543                 return -EALREADY;
 544
 545         return ieee80211_config_beacon(sdata, params);
 546 }
 547
 548 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 549                                 struct beacon_parameters *params)
 550 {
 551         struct ieee80211_sub_if_data *sdata;
 552         struct beacon_data *old;
 553
 554         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 555
 556         old = sdata->u.ap.beacon;
 557
 558         if (!old)
 559                 return -ENOENT;
 560
 561         return ieee80211_config_beacon(sdata, params);
 562 }
 563
 564 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 565 {
 566         struct ieee80211_sub_if_data *sdata;
 567         struct beacon_data *old;
 568
 569         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 570
 571         old = sdata->u.ap.beacon;
 572
 573         if (!old)
 574                 return -ENOENT;
 575
 576         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 577         synchronize_rcu();
 578         kfree(old);
 579
 580         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 581         return 0;
 582 }
 583
 584 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 585 struct iapp_layer2_update {
 586         u8 da[ETH_ALEN];        /* broadcast */
 587         u8 sa[ETH_ALEN];        /* STA addr */
 588         __be16 len;             /* 6 */
 589         u8 dsap;                /* 0 */
 590         u8 ssap;                /* 0 */
 591         u8 control;
 592         u8 xid_info[3];
 593 } __attribute__ ((packed));
 594
 595 static void ieee80211_send_layer2_update(struct sta_info *sta)
 596 {
 597         struct iapp_layer2_update *msg;
 598         struct sk_buff *skb;
 599
 600         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 601          * bridge devices */
 602
 603         skb = dev_alloc_skb(sizeof(*msg));
 604         if (!skb)
 605                 return;
 606         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 607
 608         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 609          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 610
 611         memset(msg->da, 0xff, ETH_ALEN);
 612         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 613         msg->len = htons(6);
 614         msg->dsap = 0;
 615         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 616         msg->control = 0xaf;    /* XID response lsb.1111F101.
 617                                  * F=0 (no poll command; unsolicited frame) */
 618         msg->xid_info[0] = 0x81;        /* XID format identifier */
 619         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 620         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 621
 622         skb->dev = sta->sdata->dev;
 623         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 624         memset(skb->cb, 0, sizeof(skb->cb));
 625         netif_rx(skb);
 626 }
 627
 628 static void sta_apply_parameters(struct ieee80211_local *local,
 629                                  struct sta_info *sta,
 630                                  struct station_parameters *params)
 631 {
 632         u32 rates;
 633         int i, j;
 634         struct ieee80211_supported_band *sband;
 635         struct ieee80211_sub_if_data *sdata = sta->sdata;
 636         u32 mask, set;
 637
 638         sband = local->hw.wiphy->bands[local->oper_channel->band];
 639
 640         spin_lock_bh(&sta->lock);
 641         mask = params->sta_flags_mask;
 642         set = params->sta_flags_set;
 643
 644         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 645                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 646                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 647                         sta->flags |= WLAN_STA_AUTHORIZED;
 648         }
 649
 650         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 651                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 652                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 653                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 654         }
 655
 656         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 657                 sta->flags &= ~WLAN_STA_WME;
 658                 if (set & BIT(NL80211_STA_FLAG_WME))
 659                         sta->flags |= WLAN_STA_WME;
 660         }
 661
 662         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 663                 sta->flags &= ~WLAN_STA_MFP;
 664                 if (set & BIT(NL80211_STA_FLAG_MFP))
 665                         sta->flags |= WLAN_STA_MFP;
 666         }
 667         spin_unlock_bh(&sta->lock);
 668
 669         /*
 670          * cfg80211 validates this (1-2007) and allows setting the AID
 671          * only when creating a new station entry
 672          */
 673         if (params->aid)
 674                 sta->sta.aid = params->aid;
 675
 676         /*
 677          * FIXME: updating the following information is racy when this
 678          *        function is called from ieee80211_change_station().
 679          *        However, all this information should be static so
 680          *        maybe we should just reject attemps to change it.
 681          */
 682
 683         if (params->listen_interval >= 0)
 684                 sta->listen_interval = params->listen_interval;
 685
 686         if (params->supported_rates) {
 687                 rates = 0;
 688
 689                 for (i = 0; i < params->supported_rates_len; i++) {
 690                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 691                         for (j = 0; j < sband->n_bitrates; j++) {
 692                                 if (sband->bitrates[j].bitrate == rate)
 693                                         rates |= BIT(j);
 694                         }
 695                 }
 696                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 697         }
 698
 699         if (params->ht_capa)
 700                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 701                                                   params->ht_capa,
 702                                                   &sta->sta.ht_cap);
 703
 704         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 705                 switch (params->plink_action) {
 706                 case PLINK_ACTION_OPEN:
 707                         mesh_plink_open(sta);
 708                         break;
 709                 case PLINK_ACTION_BLOCK:
 710                         mesh_plink_block(sta);
 711                         break;
 712                 }
 713         }
 714 }
 715
 716 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 717                                  u8 *mac, struct station_parameters *params)
 718 {
 719         struct ieee80211_local *local = wiphy_priv(wiphy);
 720         struct sta_info *sta;
 721         struct ieee80211_sub_if_data *sdata;
 722         int err;
 723         int layer2_update;
 724
 725         if (params->vlan) {
 726                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 727
 728                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 729                     sdata->vif.type != NL80211_IFTYPE_AP)
 730                         return -EINVAL;
 731         } else
 732                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 733
 734         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
 735                 return -EINVAL;
 736
 737         if (is_multicast_ether_addr(mac))
 738                 return -EINVAL;
 739
 740         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 741         if (!sta)
 742                 return -ENOMEM;
 743
 744         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 745
 746         sta_apply_parameters(local, sta, params);
 747
 748         rate_control_rate_init(sta);
 749
 750         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 751                 sdata->vif.type == NL80211_IFTYPE_AP;
 752
 753         err = sta_info_insert_rcu(sta);
 754         if (err) {
 755                 rcu_read_unlock();
 756                 return err;
 757         }
 758
 759         if (layer2_update)
 760                 ieee80211_send_layer2_update(sta);
 761
 762         rcu_read_unlock();
 763
 764         return 0;
 765 }
 766
 767 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 768                                  u8 *mac)
 769 {
 770         struct ieee80211_local *local = wiphy_priv(wiphy);
 771         struct ieee80211_sub_if_data *sdata;
 772
 773         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 774
 775         if (mac)
 776                 return sta_info_destroy_addr_bss(sdata, mac);
 777
 778         sta_info_flush(local, sdata);
 779         return 0;
 780 }
 781
 782 static int ieee80211_change_station(struct wiphy *wiphy,
 783                                     struct net_device *dev,
 784                                     u8 *mac,
 785                                     struct station_parameters *params)
 786 {
 787         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 788         struct ieee80211_local *local = wiphy_priv(wiphy);
 789         struct sta_info *sta;
 790         struct ieee80211_sub_if_data *vlansdata;
 791
 792         rcu_read_lock();
 793
 794         sta = sta_info_get_bss(sdata, mac);
 795         if (!sta) {
 796                 rcu_read_unlock();
 797                 return -ENOENT;
 798         }
 799
 800         if (params->vlan && params->vlan != sta->sdata->dev) {
 801                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 802
 803                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 804                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 805                         rcu_read_unlock();
 806                         return -EINVAL;
 807                 }
 808
 809                 if (params->vlan->ieee80211_ptr->use_4addr) {
 810                         if (vlansdata->u.vlan.sta) {
 811                                 rcu_read_unlock();
 812                                 return -EBUSY;
 813                         }
 814
 815                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 816                 }
 817
 818                 sta->sdata = vlansdata;
 819                 ieee80211_send_layer2_update(sta);
 820         }
 821
 822         sta_apply_parameters(local, sta, params);
 823
 824         rcu_read_unlock();
 825
 826         return 0;
 827 }
 828
 829 #ifdef CONFIG_MAC80211_MESH
 830 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 831                                  u8 *dst, u8 *next_hop)
 832 {
 833         struct ieee80211_sub_if_data *sdata;
 834         struct mesh_path *mpath;
 835         struct sta_info *sta;
 836         int err;
 837
 838         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 839
 840         rcu_read_lock();
 841         sta = sta_info_get(sdata, next_hop);
 842         if (!sta) {
 843                 rcu_read_unlock();
 844                 return -ENOENT;
 845         }
 846
 847         err = mesh_path_add(dst, sdata);
 848         if (err) {
 849                 rcu_read_unlock();
 850                 return err;
 851         }
 852
 853         mpath = mesh_path_lookup(dst, sdata);
 854         if (!mpath) {
 855                 rcu_read_unlock();
 856                 return -ENXIO;
 857         }
 858         mesh_path_fix_nexthop(mpath, sta);
 859
 860         rcu_read_unlock();
 861         return 0;
 862 }
 863
 864 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 865                                  u8 *dst)
 866 {
 867         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 868
 869         if (dst)
 870                 return mesh_path_del(dst, sdata);
 871
 872         mesh_path_flush(sdata);
 873         return 0;
 874 }
 875
 876 static int ieee80211_change_mpath(struct wiphy *wiphy,
 877                                     struct net_device *dev,
 878                                     u8 *dst, u8 *next_hop)
 879 {
 880         struct ieee80211_sub_if_data *sdata;
 881         struct mesh_path *mpath;
 882         struct sta_info *sta;
 883
 884         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 885
 886         rcu_read_lock();
 887
 888         sta = sta_info_get(sdata, next_hop);
 889         if (!sta) {
 890                 rcu_read_unlock();
 891                 return -ENOENT;
 892         }
 893
 894         mpath = mesh_path_lookup(dst, sdata);
 895         if (!mpath) {
 896                 rcu_read_unlock();
 897                 return -ENOENT;
 898         }
 899
 900         mesh_path_fix_nexthop(mpath, sta);
 901
 902         rcu_read_unlock();
 903         return 0;
 904 }
 905
 906 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 907                             struct mpath_info *pinfo)
 908 {
 909         if (mpath->next_hop)
 910                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 911         else
 912                 memset(next_hop, 0, ETH_ALEN);
 913
 914         pinfo->generation = mesh_paths_generation;
 915
 916         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 917                         MPATH_INFO_SN |
 918                         MPATH_INFO_METRIC |
 919                         MPATH_INFO_EXPTIME |
 920                         MPATH_INFO_DISCOVERY_TIMEOUT |
 921                         MPATH_INFO_DISCOVERY_RETRIES |
 922                         MPATH_INFO_FLAGS;
 923
 924         pinfo->frame_qlen = mpath->frame_queue.qlen;
 925         pinfo->sn = mpath->sn;
 926         pinfo->metric = mpath->metric;
 927         if (time_before(jiffies, mpath->exp_time))
 928                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 929         pinfo->discovery_timeout =
 930                         jiffies_to_msecs(mpath->discovery_timeout);
 931         pinfo->discovery_retries = mpath->discovery_retries;
 932         pinfo->flags = 0;
 933         if (mpath->flags & MESH_PATH_ACTIVE)
 934                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 935         if (mpath->flags & MESH_PATH_RESOLVING)
 936                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 937         if (mpath->flags & MESH_PATH_SN_VALID)
 938                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 939         if (mpath->flags & MESH_PATH_FIXED)
 940                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 941         if (mpath->flags & MESH_PATH_RESOLVING)
 942                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 943
 944         pinfo->flags = mpath->flags;
 945 }
 946
 947 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 948                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 949
 950 {
 951         struct ieee80211_sub_if_data *sdata;
 952         struct mesh_path *mpath;
 953
 954         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 955
 956         rcu_read_lock();
 957         mpath = mesh_path_lookup(dst, sdata);
 958         if (!mpath) {
 959                 rcu_read_unlock();
 960                 return -ENOENT;
 961         }
 962         memcpy(dst, mpath->dst, ETH_ALEN);
 963         mpath_set_pinfo(mpath, next_hop, pinfo);
 964         rcu_read_unlock();
 965         return 0;
 966 }
 967
 968 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 969                                  int idx, u8 *dst, u8 *next_hop,
 970                                  struct mpath_info *pinfo)
 971 {
 972         struct ieee80211_sub_if_data *sdata;
 973         struct mesh_path *mpath;
 974
 975         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 976
 977         rcu_read_lock();
 978         mpath = mesh_path_lookup_by_idx(idx, sdata);
 979         if (!mpath) {
 980                 rcu_read_unlock();
 981                 return -ENOENT;
 982         }
 983         memcpy(dst, mpath->dst, ETH_ALEN);
 984         mpath_set_pinfo(mpath, next_hop, pinfo);
 985         rcu_read_unlock();
 986         return 0;
 987 }
 988
 989 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
 990                                 struct net_device *dev,
 991                                 struct mesh_config *conf)
 992 {
 993         struct ieee80211_sub_if_data *sdata;
 994         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 995
 996         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
 997         return 0;
 998 }
 999
1000 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1001 {
1002         return (mask >> (parm-1)) & 0x1;
1003 }
1004
1005 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1006                                 struct net_device *dev,
1007                                 const struct mesh_config *nconf, u32 mask)
1008 {
1009         struct mesh_config *conf;
1010         struct ieee80211_sub_if_data *sdata;
1011         struct ieee80211_if_mesh *ifmsh;
1012
1013         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1014         ifmsh = &sdata->u.mesh;
1015
1016         /* Set the config options which we are interested in setting */
1017         conf = &(sdata->u.mesh.mshcfg);
1018         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1019                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1020         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1021                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1022         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1023                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1024         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1025                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1026         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1027                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1028         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1029                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1030         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1031                 conf->auto_open_plinks = nconf->auto_open_plinks;
1032         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1033                 conf->dot11MeshHWMPmaxPREQretries =
1034                         nconf->dot11MeshHWMPmaxPREQretries;
1035         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1036                 conf->path_refresh_time = nconf->path_refresh_time;
1037         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1038                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1039         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1040                 conf->dot11MeshHWMPactivePathTimeout =
1041                         nconf->dot11MeshHWMPactivePathTimeout;
1042         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1043                 conf->dot11MeshHWMPpreqMinInterval =
1044                         nconf->dot11MeshHWMPpreqMinInterval;
1045         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1046                            mask))
1047                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1048                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1049         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1050                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1051                 ieee80211_mesh_root_setup(ifmsh);
1052         }
1053         return 0;
1054 }
1055
1056 #endif
1057
1058 static int ieee80211_change_bss(struct wiphy *wiphy,
1059                                 struct net_device *dev,
1060                                 struct bss_parameters *params)
1061 {
1062         struct ieee80211_sub_if_data *sdata;
1063         u32 changed = 0;
1064
1065         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1066
1067         if (params->use_cts_prot >= 0) {
1068                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1069                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1070         }
1071         if (params->use_short_preamble >= 0) {
1072                 sdata->vif.bss_conf.use_short_preamble =
1073                         params->use_short_preamble;
1074                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1075         }
1076
1077         if (!sdata->vif.bss_conf.use_short_slot &&
1078             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1079                 sdata->vif.bss_conf.use_short_slot = true;
1080                 changed |= BSS_CHANGED_ERP_SLOT;
1081         }
1082
1083         if (params->use_short_slot_time >= 0) {
1084                 sdata->vif.bss_conf.use_short_slot =
1085                         params->use_short_slot_time;
1086                 changed |= BSS_CHANGED_ERP_SLOT;
1087         }
1088
1089         if (params->basic_rates) {
1090                 int i, j;
1091                 u32 rates = 0;
1092                 struct ieee80211_local *local = wiphy_priv(wiphy);
1093                 struct ieee80211_supported_band *sband =
1094                         wiphy->bands[local->oper_channel->band];
1095
1096                 for (i = 0; i < params->basic_rates_len; i++) {
1097                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1098                         for (j = 0; j < sband->n_bitrates; j++) {
1099                                 if (sband->bitrates[j].bitrate == rate)
1100                                         rates |= BIT(j);
1101                         }
1102                 }
1103                 sdata->vif.bss_conf.basic_rates = rates;
1104                 changed |= BSS_CHANGED_BASIC_RATES;
1105         }
1106
1107         ieee80211_bss_info_change_notify(sdata, changed);
1108
1109         return 0;
1110 }
1111
1112 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1113                                     struct ieee80211_txq_params *params)
1114 {
1115         struct ieee80211_local *local = wiphy_priv(wiphy);
1116         struct ieee80211_tx_queue_params p;
1117
1118         if (!local->ops->conf_tx)
1119                 return -EOPNOTSUPP;
1120
1121         memset(&p, 0, sizeof(p));
1122         p.aifs = params->aifs;
1123         p.cw_max = params->cwmax;
1124         p.cw_min = params->cwmin;
1125         p.txop = params->txop;
1126
1127         /*
1128          * Setting tx queue params disables u-apsd because it's only
1129          * called in master mode.
1130          */
1131         p.uapsd = false;
1132
1133         if (drv_conf_tx(local, params->queue, &p)) {
1134                 printk(KERN_DEBUG "%s: failed to set TX queue "
1135                        "parameters for queue %d\n",
1136                        wiphy_name(local->hw.wiphy), params->queue);
1137                 return -EINVAL;
1138         }
1139
1140         return 0;
1141 }
1142
1143 static int ieee80211_set_channel(struct wiphy *wiphy,
1144                                  struct ieee80211_channel *chan,
1145                                  enum nl80211_channel_type channel_type)
1146 {
1147         struct ieee80211_local *local = wiphy_priv(wiphy);
1148
1149         local->oper_channel = chan;
1150         local->oper_channel_type = channel_type;
1151
1152         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1153 }
1154
1155 #ifdef CONFIG_PM
1156 static int ieee80211_suspend(struct wiphy *wiphy)
1157 {
1158         return __ieee80211_suspend(wiphy_priv(wiphy));
1159 }
1160
1161 static int ieee80211_resume(struct wiphy *wiphy)
1162 {
1163         return __ieee80211_resume(wiphy_priv(wiphy));
1164 }
1165 #else
1166 #define ieee80211_suspend NULL
1167 #define ieee80211_resume NULL
1168 #endif
1169
1170 static int ieee80211_scan(struct wiphy *wiphy,
1171                           struct net_device *dev,
1172                           struct cfg80211_scan_request *req)
1173 {
1174         struct ieee80211_sub_if_data *sdata;
1175
1176         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1177
1178         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1179             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1180             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1181             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1182                 return -EOPNOTSUPP;
1183
1184         return ieee80211_request_scan(sdata, req);
1185 }
1186
1187 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1188                           struct cfg80211_auth_request *req)
1189 {
1190         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1191 }
1192
1193 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1194                            struct cfg80211_assoc_request *req)
1195 {
1196         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1197 }
1198
1199 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1200                             struct cfg80211_deauth_request *req,
1201                             void *cookie)
1202 {
1203         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1204                                     req, cookie);
1205 }
1206
1207 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1208                               struct cfg80211_disassoc_request *req,
1209                               void *cookie)
1210 {
1211         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1212                                       req, cookie);
1213 }
1214
1215 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1216                                struct cfg80211_ibss_params *params)
1217 {
1218         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1219
1220         return ieee80211_ibss_join(sdata, params);
1221 }
1222
1223 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1224 {
1225         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1226
1227         return ieee80211_ibss_leave(sdata);
1228 }
1229
1230 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1231 {
1232         struct ieee80211_local *local = wiphy_priv(wiphy);
1233         int err;
1234
1235         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1236                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1237
1238                 if (err)
1239                         return err;
1240         }
1241
1242         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1243                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1244
1245                 if (err)
1246                         return err;
1247         }
1248
1249         if (changed & WIPHY_PARAM_RETRY_SHORT)
1250                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1251         if (changed & WIPHY_PARAM_RETRY_LONG)
1252                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1253         if (changed &
1254             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1255                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1256
1257         return 0;
1258 }
1259
1260 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1261                                   enum tx_power_setting type, int dbm)
1262 {
1263         struct ieee80211_local *local = wiphy_priv(wiphy);
1264         struct ieee80211_channel *chan = local->hw.conf.channel;
1265         u32 changes = 0;
1266
1267         switch (type) {
1268         case TX_POWER_AUTOMATIC:
1269                 local->user_power_level = -1;
1270                 break;
1271         case TX_POWER_LIMITED:
1272                 if (dbm < 0)
1273                         return -EINVAL;
1274                 local->user_power_level = dbm;
1275                 break;
1276         case TX_POWER_FIXED:
1277                 if (dbm < 0)
1278                         return -EINVAL;
1279                 /* TODO: move to cfg80211 when it knows the channel */
1280                 if (dbm > chan->max_power)
1281                         return -EINVAL;
1282                 local->user_power_level = dbm;
1283                 break;
1284         }
1285
1286         ieee80211_hw_config(local, changes);
1287
1288         return 0;
1289 }
1290
1291 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1292 {
1293         struct ieee80211_local *local = wiphy_priv(wiphy);
1294
1295         *dbm = local->hw.conf.power_level;
1296
1297         return 0;
1298 }
1299
1300 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1301                                   u8 *addr)
1302 {
1303         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1304
1305         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1306
1307         return 0;
1308 }
1309
1310 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1311 {
1312         struct ieee80211_local *local = wiphy_priv(wiphy);
1313
1314         drv_rfkill_poll(local);
1315 }
1316
1317 #ifdef CONFIG_NL80211_TESTMODE
1318 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1319 {
1320         struct ieee80211_local *local = wiphy_priv(wiphy);
1321
1322         if (!local->ops->testmode_cmd)
1323                 return -EOPNOTSUPP;
1324
1325         return local->ops->testmode_cmd(&local->hw, data, len);
1326 }
1327 #endif
1328
1329 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1330                              enum ieee80211_smps_mode smps_mode)
1331 {
1332         const u8 *ap;
1333         enum ieee80211_smps_mode old_req;
1334         int err;
1335
1336         old_req = sdata->u.mgd.req_smps;
1337         sdata->u.mgd.req_smps = smps_mode;
1338
1339         if (old_req == smps_mode &&
1340             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1341                 return 0;
1342
1343         /*
1344          * If not associated, or current association is not an HT
1345          * association, there's no need to send an action frame.
1346          */
1347         if (!sdata->u.mgd.associated ||
1348             sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
1349                 mutex_lock(&sdata->local->iflist_mtx);
1350                 ieee80211_recalc_smps(sdata->local, sdata);
1351                 mutex_unlock(&sdata->local->iflist_mtx);
1352                 return 0;
1353         }
1354
1355         ap = sdata->u.mgd.associated->bssid;
1356
1357         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1358                 if (sdata->u.mgd.powersave)
1359                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1360                 else
1361                         smps_mode = IEEE80211_SMPS_OFF;
1362         }
1363
1364         /* send SM PS frame to AP */
1365         err = ieee80211_send_smps_action(sdata, smps_mode,
1366                                          ap, ap);
1367         if (err)
1368                 sdata->u.mgd.req_smps = old_req;
1369
1370         return err;
1371 }
1372
1373 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1374                                     bool enabled, int timeout)
1375 {
1376         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1377         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1378         struct ieee80211_conf *conf = &local->hw.conf;
1379
1380         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1381                 return -EOPNOTSUPP;
1382
1383         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1384                 return -EOPNOTSUPP;
1385
1386         if (enabled == sdata->u.mgd.powersave &&
1387             timeout == conf->dynamic_ps_timeout)
1388                 return 0;
1389
1390         sdata->u.mgd.powersave = enabled;
1391         conf->dynamic_ps_timeout = timeout;
1392
1393         /* no change, but if automatic follow powersave */
1394         mutex_lock(&sdata->u.mgd.mtx);
1395         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1396         mutex_unlock(&sdata->u.mgd.mtx);
1397
1398         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1399                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1400
1401         ieee80211_recalc_ps(local, -1);
1402
1403         return 0;
1404 }
1405
1406 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1407                                       struct net_device *dev,
1408                                       const u8 *addr,
1409                                       const struct cfg80211_bitrate_mask *mask)
1410 {
1411         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1412         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1413         int i;
1414
1415         /*
1416          * This _could_ be supported by providing a hook for
1417          * drivers for this function, but at this point it
1418          * doesn't seem worth bothering.
1419          */
1420         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1421                 return -EOPNOTSUPP;
1422
1423
1424         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1425                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1426
1427         return 0;
1428 }
1429
1430 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1431                                        struct net_device *dev,
1432                                        struct ieee80211_channel *chan,
1433                                        enum nl80211_channel_type channel_type,
1434                                        unsigned int duration,
1435                                        u64 *cookie)
1436 {
1437         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1438
1439         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1440                                               duration, cookie);
1441 }
1442
1443 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1444                                               struct net_device *dev,
1445                                               u64 cookie)
1446 {
1447         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1448
1449         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1450 }
1451
1452 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1453                             struct ieee80211_channel *chan,
1454                             enum nl80211_channel_type channel_type,
1455                             const u8 *buf, size_t len, u64 *cookie)
1456 {
1457         return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan,
1458                                     channel_type, buf, len, cookie);
1459 }
1460
1461 struct cfg80211_ops mac80211_config_ops = {
1462         .add_virtual_intf = ieee80211_add_iface,
1463         .del_virtual_intf = ieee80211_del_iface,
1464         .change_virtual_intf = ieee80211_change_iface,
1465         .add_key = ieee80211_add_key,
1466         .del_key = ieee80211_del_key,
1467         .get_key = ieee80211_get_key,
1468         .set_default_key = ieee80211_config_default_key,
1469         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1470         .add_beacon = ieee80211_add_beacon,
1471         .set_beacon = ieee80211_set_beacon,
1472         .del_beacon = ieee80211_del_beacon,
1473         .add_station = ieee80211_add_station,
1474         .del_station = ieee80211_del_station,
1475         .change_station = ieee80211_change_station,
1476         .get_station = ieee80211_get_station,
1477         .dump_station = ieee80211_dump_station,
1478 #ifdef CONFIG_MAC80211_MESH
1479         .add_mpath = ieee80211_add_mpath,
1480         .del_mpath = ieee80211_del_mpath,
1481         .change_mpath = ieee80211_change_mpath,
1482         .get_mpath = ieee80211_get_mpath,
1483         .dump_mpath = ieee80211_dump_mpath,
1484         .set_mesh_params = ieee80211_set_mesh_params,
1485         .get_mesh_params = ieee80211_get_mesh_params,
1486 #endif
1487         .change_bss = ieee80211_change_bss,
1488         .set_txq_params = ieee80211_set_txq_params,
1489         .set_channel = ieee80211_set_channel,
1490         .suspend = ieee80211_suspend,
1491         .resume = ieee80211_resume,
1492         .scan = ieee80211_scan,
1493         .auth = ieee80211_auth,
1494         .assoc = ieee80211_assoc,
1495         .deauth = ieee80211_deauth,
1496         .disassoc = ieee80211_disassoc,
1497         .join_ibss = ieee80211_join_ibss,
1498         .leave_ibss = ieee80211_leave_ibss,
1499         .set_wiphy_params = ieee80211_set_wiphy_params,
1500         .set_tx_power = ieee80211_set_tx_power,
1501         .get_tx_power = ieee80211_get_tx_power,
1502         .set_wds_peer = ieee80211_set_wds_peer,
1503         .rfkill_poll = ieee80211_rfkill_poll,
1504         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1505         .set_power_mgmt = ieee80211_set_power_mgmt,
1506         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1507         .remain_on_channel = ieee80211_remain_on_channel,
1508         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1509         .action = ieee80211_action,
1510 };