net/mac80211/cfg.c

   1 /*
   2  * mac80211 configuration hooks for cfg80211
   3  *
   4  * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
   5  *
   6  * This file is GPLv2 as found in COPYING.
   7  */
   8
   9 #include <linux/ieee80211.h>
  10 #include <linux/nl80211.h>
  11 #include <linux/rtnetlink.h>
  12 #include <net/net_namespace.h>
  13 #include <linux/rcupdate.h>
  14 #include <net/cfg80211.h>
  15 #include "ieee80211_i.h"
  16 #include "driver-ops.h"
  17 #include "cfg.h"
  18 #include "rate.h"
  19 #include "mesh.h"
  20
  21 static bool nl80211_type_check(enum nl80211_iftype type)
  22 {
  23         switch (type) {
  24         case NL80211_IFTYPE_ADHOC:
  25         case NL80211_IFTYPE_STATION:
  26         case NL80211_IFTYPE_MONITOR:
  27 #ifdef CONFIG_MAC80211_MESH
  28         case NL80211_IFTYPE_MESH_POINT:
  29 #endif
  30         case NL80211_IFTYPE_AP:
  31         case NL80211_IFTYPE_AP_VLAN:
  32         case NL80211_IFTYPE_WDS:
  33                 return true;
  34         default:
  35                 return false;
  36         }
  37 }
  38
  39 static bool nl80211_params_check(enum nl80211_iftype type,
  40                                  struct vif_params *params)
  41 {
  42         if (!nl80211_type_check(type))
  43                 return false;
  44
  45         return true;
  46 }
  47
  48 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
  49                                enum nl80211_iftype type, u32 *flags,
  50                                struct vif_params *params)
  51 {
  52         struct ieee80211_local *local = wiphy_priv(wiphy);
  53         struct net_device *dev;
  54         struct ieee80211_sub_if_data *sdata;
  55         int err;
  56
  57         if (!nl80211_params_check(type, params))
  58                 return -EINVAL;
  59
  60         err = ieee80211_if_add(local, name, &dev, type, params);
  61         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
  62                 return err;
  63
  64         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  65         sdata->u.mntr_flags = *flags;
  66         return 0;
  67 }
  68
  69 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
  70 {
  71         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
  72
  73         return 0;
  74 }
  75
  76 static int ieee80211_change_iface(struct wiphy *wiphy,
  77                                   struct net_device *dev,
  78                                   enum nl80211_iftype type, u32 *flags,
  79                                   struct vif_params *params)
  80 {
  81         struct ieee80211_sub_if_data *sdata;
  82         int ret;
  83
  84         if (netif_running(dev))
  85                 return -EBUSY;
  86
  87         if (!nl80211_params_check(type, params))
  88                 return -EINVAL;
  89
  90         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  91
  92         ret = ieee80211_if_change_type(sdata, type);
  93         if (ret)
  94                 return ret;
  95
  96         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
  97                 ieee80211_sdata_set_mesh_id(sdata,
  98                                             params->mesh_id_len,
  99                                             params->mesh_id);
 100
 101         if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
 102                 return 0;
 103
 104         if (type == NL80211_IFTYPE_AP_VLAN &&
 105             params && params->use_4addr == 0)
 106                 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
 107         else if (type == NL80211_IFTYPE_STATION &&
 108                  params && params->use_4addr >= 0)
 109                 sdata->u.mgd.use_4addr = params->use_4addr;
 110
 111         sdata->u.mntr_flags = *flags;
 112         return 0;
 113 }
 114
 115 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 116                              u8 key_idx, const u8 *mac_addr,
 117                              struct key_params *params)
 118 {
 119         struct ieee80211_sub_if_data *sdata;
 120         struct sta_info *sta = NULL;
 121         enum ieee80211_key_alg alg;
 122         struct ieee80211_key *key;
 123         int err;
 124
 125         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 126
 127         switch (params->cipher) {
 128         case WLAN_CIPHER_SUITE_WEP40:
 129         case WLAN_CIPHER_SUITE_WEP104:
 130                 alg = ALG_WEP;
 131                 break;
 132         case WLAN_CIPHER_SUITE_TKIP:
 133                 alg = ALG_TKIP;
 134                 break;
 135         case WLAN_CIPHER_SUITE_CCMP:
 136                 alg = ALG_CCMP;
 137                 break;
 138         case WLAN_CIPHER_SUITE_AES_CMAC:
 139                 alg = ALG_AES_CMAC;
 140                 break;
 141         default:
 142                 return -EINVAL;
 143         }
 144
 145         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
 146                                   params->seq_len, params->seq);
 147         if (!key)
 148                 return -ENOMEM;
 149
 150         rcu_read_lock();
 151
 152         if (mac_addr) {
 153                 sta = sta_info_get(sdata, mac_addr);
 154                 if (!sta) {
 155                         ieee80211_key_free(key);
 156                         err = -ENOENT;
 157                         goto out_unlock;
 158                 }
 159         }
 160
 161         ieee80211_key_link(key, sdata, sta);
 162
 163         err = 0;
 164  out_unlock:
 165         rcu_read_unlock();
 166
 167         return err;
 168 }
 169
 170 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 171                              u8 key_idx, const u8 *mac_addr)
 172 {
 173         struct ieee80211_sub_if_data *sdata;
 174         struct sta_info *sta;
 175         int ret;
 176
 177         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 178
 179         rcu_read_lock();
 180
 181         if (mac_addr) {
 182                 ret = -ENOENT;
 183
 184                 sta = sta_info_get(sdata, mac_addr);
 185                 if (!sta)
 186                         goto out_unlock;
 187
 188                 if (sta->key) {
 189                         ieee80211_key_free(sta->key);
 190                         WARN_ON(sta->key);
 191                         ret = 0;
 192                 }
 193
 194                 goto out_unlock;
 195         }
 196
 197         if (!sdata->keys[key_idx]) {
 198                 ret = -ENOENT;
 199                 goto out_unlock;
 200         }
 201
 202         ieee80211_key_free(sdata->keys[key_idx]);
 203         WARN_ON(sdata->keys[key_idx]);
 204
 205         ret = 0;
 206  out_unlock:
 207         rcu_read_unlock();
 208
 209         return ret;
 210 }
 211
 212 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 213                              u8 key_idx, const u8 *mac_addr, void *cookie,
 214                              void (*callback)(void *cookie,
 215                                               struct key_params *params))
 216 {
 217         struct ieee80211_sub_if_data *sdata;
 218         struct sta_info *sta = NULL;
 219         u8 seq[6] = {0};
 220         struct key_params params;
 221         struct ieee80211_key *key;
 222         u32 iv32;
 223         u16 iv16;
 224         int err = -ENOENT;
 225
 226         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 227
 228         rcu_read_lock();
 229
 230         if (mac_addr) {
 231                 sta = sta_info_get(sdata, mac_addr);
 232                 if (!sta)
 233                         goto out;
 234
 235                 key = sta->key;
 236         } else
 237                 key = sdata->keys[key_idx];
 238
 239         if (!key)
 240                 goto out;
 241
 242         memset(&params, 0, sizeof(params));
 243
 244         switch (key->conf.alg) {
 245         case ALG_TKIP:
 246                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
 247
 248                 iv32 = key->u.tkip.tx.iv32;
 249                 iv16 = key->u.tkip.tx.iv16;
 250
 251                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 252                         drv_get_tkip_seq(sdata->local,
 253                                          key->conf.hw_key_idx,
 254                                          &iv32, &iv16);
 255
 256                 seq[0] = iv16 & 0xff;
 257                 seq[1] = (iv16 >> 8) & 0xff;
 258                 seq[2] = iv32 & 0xff;
 259                 seq[3] = (iv32 >> 8) & 0xff;
 260                 seq[4] = (iv32 >> 16) & 0xff;
 261                 seq[5] = (iv32 >> 24) & 0xff;
 262                 params.seq = seq;
 263                 params.seq_len = 6;
 264                 break;
 265         case ALG_CCMP:
 266                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
 267                 seq[0] = key->u.ccmp.tx_pn[5];
 268                 seq[1] = key->u.ccmp.tx_pn[4];
 269                 seq[2] = key->u.ccmp.tx_pn[3];
 270                 seq[3] = key->u.ccmp.tx_pn[2];
 271                 seq[4] = key->u.ccmp.tx_pn[1];
 272                 seq[5] = key->u.ccmp.tx_pn[0];
 273                 params.seq = seq;
 274                 params.seq_len = 6;
 275                 break;
 276         case ALG_WEP:
 277                 if (key->conf.keylen == 5)
 278                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
 279                 else
 280                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
 281                 break;
 282         case ALG_AES_CMAC:
 283                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 284                 seq[0] = key->u.aes_cmac.tx_pn[5];
 285                 seq[1] = key->u.aes_cmac.tx_pn[4];
 286                 seq[2] = key->u.aes_cmac.tx_pn[3];
 287                 seq[3] = key->u.aes_cmac.tx_pn[2];
 288                 seq[4] = key->u.aes_cmac.tx_pn[1];
 289                 seq[5] = key->u.aes_cmac.tx_pn[0];
 290                 params.seq = seq;
 291                 params.seq_len = 6;
 292                 break;
 293         }
 294
 295         params.key = key->conf.key;
 296         params.key_len = key->conf.keylen;
 297
 298         callback(cookie, &params);
 299         err = 0;
 300
 301  out:
 302         rcu_read_unlock();
 303         return err;
 304 }
 305
 306 static int ieee80211_config_default_key(struct wiphy *wiphy,
 307                                         struct net_device *dev,
 308                                         u8 key_idx)
 309 {
 310         struct ieee80211_sub_if_data *sdata;
 311
 312         rcu_read_lock();
 313
 314         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 315         ieee80211_set_default_key(sdata, key_idx);
 316
 317         rcu_read_unlock();
 318
 319         return 0;
 320 }
 321
 322 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 323                                              struct net_device *dev,
 324                                              u8 key_idx)
 325 {
 326         struct ieee80211_sub_if_data *sdata;
 327
 328         rcu_read_lock();
 329
 330         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 331         ieee80211_set_default_mgmt_key(sdata, key_idx);
 332
 333         rcu_read_unlock();
 334
 335         return 0;
 336 }
 337
 338 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 339 {
 340         struct ieee80211_sub_if_data *sdata = sta->sdata;
 341
 342         sinfo->generation = sdata->local->sta_generation;
 343
 344         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 345                         STATION_INFO_RX_BYTES |
 346                         STATION_INFO_TX_BYTES |
 347                         STATION_INFO_RX_PACKETS |
 348                         STATION_INFO_TX_PACKETS |
 349                         STATION_INFO_TX_BITRATE;
 350
 351         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 352         sinfo->rx_bytes = sta->rx_bytes;
 353         sinfo->tx_bytes = sta->tx_bytes;
 354         sinfo->rx_packets = sta->rx_packets;
 355         sinfo->tx_packets = sta->tx_packets;
 356
 357         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 358             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 359                 sinfo->filled |= STATION_INFO_SIGNAL;
 360                 sinfo->signal = (s8)sta->last_signal;
 361         }
 362
 363         sinfo->txrate.flags = 0;
 364         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 365                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 366         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 367                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 368         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 369                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 370
 371         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 372                 struct ieee80211_supported_band *sband;
 373                 sband = sta->local->hw.wiphy->bands[
 374                                 sta->local->hw.conf.channel->band];
 375                 sinfo->txrate.legacy =
 376                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 377         } else
 378                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 379
 380         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 381 #ifdef CONFIG_MAC80211_MESH
 382                 sinfo->filled |= STATION_INFO_LLID |
 383                                  STATION_INFO_PLID |
 384                                  STATION_INFO_PLINK_STATE;
 385
 386                 sinfo->llid = le16_to_cpu(sta->llid);
 387                 sinfo->plid = le16_to_cpu(sta->plid);
 388                 sinfo->plink_state = sta->plink_state;
 389 #endif
 390         }
 391 }
 392
 393
 394 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 395                                  int idx, u8 *mac, struct station_info *sinfo)
 396 {
 397         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 398         struct sta_info *sta;
 399         int ret = -ENOENT;
 400
 401         rcu_read_lock();
 402
 403         sta = sta_info_get_by_idx(sdata, idx);
 404         if (sta) {
 405                 ret = 0;
 406                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 407                 sta_set_sinfo(sta, sinfo);
 408         }
 409
 410         rcu_read_unlock();
 411
 412         return ret;
 413 }
 414
 415 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 416                                  u8 *mac, struct station_info *sinfo)
 417 {
 418         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 419         struct sta_info *sta;
 420         int ret = -ENOENT;
 421
 422         rcu_read_lock();
 423
 424         sta = sta_info_get(sdata, mac);
 425         if (sta) {
 426                 ret = 0;
 427                 sta_set_sinfo(sta, sinfo);
 428         }
 429
 430         rcu_read_unlock();
 431
 432         return ret;
 433 }
 434
 435 /*
 436  * This handles both adding a beacon and setting new beacon info
 437  */
 438 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 439                                    struct beacon_parameters *params)
 440 {
 441         struct beacon_data *new, *old;
 442         int new_head_len, new_tail_len;
 443         int size;
 444         int err = -EINVAL;
 445
 446         old = sdata->u.ap.beacon;
 447
 448         /* head must not be zero-length */
 449         if (params->head && !params->head_len)
 450                 return -EINVAL;
 451
 452         /*
 453          * This is a kludge. beacon interval should really be part
 454          * of the beacon information.
 455          */
 456         if (params->interval &&
 457             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 458                 sdata->vif.bss_conf.beacon_int = params->interval;
 459                 ieee80211_bss_info_change_notify(sdata,
 460                                                  BSS_CHANGED_BEACON_INT);
 461         }
 462
 463         /* Need to have a beacon head if we don't have one yet */
 464         if (!params->head && !old)
 465                 return err;
 466
 467         /* sorry, no way to start beaconing without dtim period */
 468         if (!params->dtim_period && !old)
 469                 return err;
 470
 471         /* new or old head? */
 472         if (params->head)
 473                 new_head_len = params->head_len;
 474         else
 475                 new_head_len = old->head_len;
 476
 477         /* new or old tail? */
 478         if (params->tail || !old)
 479                 /* params->tail_len will be zero for !params->tail */
 480                 new_tail_len = params->tail_len;
 481         else
 482                 new_tail_len = old->tail_len;
 483
 484         size = sizeof(*new) + new_head_len + new_tail_len;
 485
 486         new = kzalloc(size, GFP_KERNEL);
 487         if (!new)
 488                 return -ENOMEM;
 489
 490         /* start filling the new info now */
 491
 492         /* new or old dtim period? */
 493         if (params->dtim_period)
 494                 new->dtim_period = params->dtim_period;
 495         else
 496                 new->dtim_period = old->dtim_period;
 497
 498         /*
 499          * pointers go into the block we allocated,
 500          * memory is | beacon_data | head | tail |
 501          */
 502         new->head = ((u8 *) new) + sizeof(*new);
 503         new->tail = new->head + new_head_len;
 504         new->head_len = new_head_len;
 505         new->tail_len = new_tail_len;
 506
 507         /* copy in head */
 508         if (params->head)
 509                 memcpy(new->head, params->head, new_head_len);
 510         else
 511                 memcpy(new->head, old->head, new_head_len);
 512
 513         /* copy in optional tail */
 514         if (params->tail)
 515                 memcpy(new->tail, params->tail, new_tail_len);
 516         else
 517                 if (old)
 518                         memcpy(new->tail, old->tail, new_tail_len);
 519
 520         rcu_assign_pointer(sdata->u.ap.beacon, new);
 521
 522         synchronize_rcu();
 523
 524         kfree(old);
 525
 526         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 527                                                 BSS_CHANGED_BEACON);
 528         return 0;
 529 }
 530
 531 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 532                                 struct beacon_parameters *params)
 533 {
 534         struct ieee80211_sub_if_data *sdata;
 535         struct beacon_data *old;
 536
 537         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 538
 539         old = sdata->u.ap.beacon;
 540
 541         if (old)
 542                 return -EALREADY;
 543
 544         return ieee80211_config_beacon(sdata, params);
 545 }
 546
 547 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 548                                 struct beacon_parameters *params)
 549 {
 550         struct ieee80211_sub_if_data *sdata;
 551         struct beacon_data *old;
 552
 553         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 554
 555         old = sdata->u.ap.beacon;
 556
 557         if (!old)
 558                 return -ENOENT;
 559
 560         return ieee80211_config_beacon(sdata, params);
 561 }
 562
 563 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 564 {
 565         struct ieee80211_sub_if_data *sdata;
 566         struct beacon_data *old;
 567
 568         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 569
 570         old = sdata->u.ap.beacon;
 571
 572         if (!old)
 573                 return -ENOENT;
 574
 575         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 576         synchronize_rcu();
 577         kfree(old);
 578
 579         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 580         return 0;
 581 }
 582
 583 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 584 struct iapp_layer2_update {
 585         u8 da[ETH_ALEN];        /* broadcast */
 586         u8 sa[ETH_ALEN];        /* STA addr */
 587         __be16 len;             /* 6 */
 588         u8 dsap;                /* 0 */
 589         u8 ssap;                /* 0 */
 590         u8 control;
 591         u8 xid_info[3];
 592 } __attribute__ ((packed));
 593
 594 static void ieee80211_send_layer2_update(struct sta_info *sta)
 595 {
 596         struct iapp_layer2_update *msg;
 597         struct sk_buff *skb;
 598
 599         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 600          * bridge devices */
 601
 602         skb = dev_alloc_skb(sizeof(*msg));
 603         if (!skb)
 604                 return;
 605         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 606
 607         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 608          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 609
 610         memset(msg->da, 0xff, ETH_ALEN);
 611         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 612         msg->len = htons(6);
 613         msg->dsap = 0;
 614         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 615         msg->control = 0xaf;    /* XID response lsb.1111F101.
 616                                  * F=0 (no poll command; unsolicited frame) */
 617         msg->xid_info[0] = 0x81;        /* XID format identifier */
 618         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 619         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 620
 621         skb->dev = sta->sdata->dev;
 622         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 623         memset(skb->cb, 0, sizeof(skb->cb));
 624         netif_rx(skb);
 625 }
 626
 627 static void sta_apply_parameters(struct ieee80211_local *local,
 628                                  struct sta_info *sta,
 629                                  struct station_parameters *params)
 630 {
 631         u32 rates;
 632         int i, j;
 633         struct ieee80211_supported_band *sband;
 634         struct ieee80211_sub_if_data *sdata = sta->sdata;
 635         u32 mask, set;
 636
 637         sband = local->hw.wiphy->bands[local->oper_channel->band];
 638
 639         spin_lock_bh(&sta->lock);
 640         mask = params->sta_flags_mask;
 641         set = params->sta_flags_set;
 642
 643         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 644                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 645                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 646                         sta->flags |= WLAN_STA_AUTHORIZED;
 647         }
 648
 649         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 650                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 651                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 652                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 653         }
 654
 655         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 656                 sta->flags &= ~WLAN_STA_WME;
 657                 if (set & BIT(NL80211_STA_FLAG_WME))
 658                         sta->flags |= WLAN_STA_WME;
 659         }
 660
 661         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 662                 sta->flags &= ~WLAN_STA_MFP;
 663                 if (set & BIT(NL80211_STA_FLAG_MFP))
 664                         sta->flags |= WLAN_STA_MFP;
 665         }
 666         spin_unlock_bh(&sta->lock);
 667
 668         /*
 669          * cfg80211 validates this (1-2007) and allows setting the AID
 670          * only when creating a new station entry
 671          */
 672         if (params->aid)
 673                 sta->sta.aid = params->aid;
 674
 675         /*
 676          * FIXME: updating the following information is racy when this
 677          *        function is called from ieee80211_change_station().
 678          *        However, all this information should be static so
 679          *        maybe we should just reject attemps to change it.
 680          */
 681
 682         if (params->listen_interval >= 0)
 683                 sta->listen_interval = params->listen_interval;
 684
 685         if (params->supported_rates) {
 686                 rates = 0;
 687
 688                 for (i = 0; i < params->supported_rates_len; i++) {
 689                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 690                         for (j = 0; j < sband->n_bitrates; j++) {
 691                                 if (sband->bitrates[j].bitrate == rate)
 692                                         rates |= BIT(j);
 693                         }
 694                 }
 695                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 696         }
 697
 698         if (params->ht_capa)
 699                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 700                                                   params->ht_capa,
 701                                                   &sta->sta.ht_cap);
 702
 703         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 704                 switch (params->plink_action) {
 705                 case PLINK_ACTION_OPEN:
 706                         mesh_plink_open(sta);
 707                         break;
 708                 case PLINK_ACTION_BLOCK:
 709                         mesh_plink_block(sta);
 710                         break;
 711                 }
 712         }
 713 }
 714
 715 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 716                                  u8 *mac, struct station_parameters *params)
 717 {
 718         struct ieee80211_local *local = wiphy_priv(wiphy);
 719         struct sta_info *sta;
 720         struct ieee80211_sub_if_data *sdata;
 721         int err;
 722         int layer2_update;
 723
 724         if (params->vlan) {
 725                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 726
 727                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 728                     sdata->vif.type != NL80211_IFTYPE_AP)
 729                         return -EINVAL;
 730         } else
 731                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 732
 733         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
 734                 return -EINVAL;
 735
 736         if (is_multicast_ether_addr(mac))
 737                 return -EINVAL;
 738
 739         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 740         if (!sta)
 741                 return -ENOMEM;
 742
 743         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 744
 745         sta_apply_parameters(local, sta, params);
 746
 747         rate_control_rate_init(sta);
 748
 749         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 750                 sdata->vif.type == NL80211_IFTYPE_AP;
 751
 752         rcu_read_lock();
 753
 754         err = sta_info_insert(sta);
 755         if (err) {
 756                 rcu_read_unlock();
 757                 return err;
 758         }
 759
 760         if (layer2_update)
 761                 ieee80211_send_layer2_update(sta);
 762
 763         rcu_read_unlock();
 764
 765         return 0;
 766 }
 767
 768 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 769                                  u8 *mac)
 770 {
 771         struct ieee80211_local *local = wiphy_priv(wiphy);
 772         struct ieee80211_sub_if_data *sdata;
 773         struct sta_info *sta;
 774
 775         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 776
 777         if (mac) {
 778                 rcu_read_lock();
 779
 780                 sta = sta_info_get(sdata, mac);
 781                 if (!sta) {
 782                         rcu_read_unlock();
 783                         return -ENOENT;
 784                 }
 785
 786                 sta_info_unlink(&sta);
 787                 rcu_read_unlock();
 788
 789                 sta_info_destroy(sta);
 790         } else
 791                 sta_info_flush(local, sdata);
 792
 793         return 0;
 794 }
 795
 796 static int ieee80211_change_station(struct wiphy *wiphy,
 797                                     struct net_device *dev,
 798                                     u8 *mac,
 799                                     struct station_parameters *params)
 800 {
 801         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 802         struct ieee80211_local *local = wiphy_priv(wiphy);
 803         struct sta_info *sta;
 804         struct ieee80211_sub_if_data *vlansdata;
 805
 806         rcu_read_lock();
 807
 808         sta = sta_info_get(sdata, mac);
 809         if (!sta) {
 810                 rcu_read_unlock();
 811                 return -ENOENT;
 812         }
 813
 814         if (params->vlan && params->vlan != sta->sdata->dev) {
 815                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 816
 817                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 818                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 819                         rcu_read_unlock();
 820                         return -EINVAL;
 821                 }
 822
 823                 if (params->vlan->ieee80211_ptr->use_4addr) {
 824                         if (vlansdata->u.vlan.sta) {
 825                                 rcu_read_unlock();
 826                                 return -EBUSY;
 827                         }
 828
 829                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 830                 }
 831
 832                 sta->sdata = vlansdata;
 833                 ieee80211_send_layer2_update(sta);
 834         }
 835
 836         sta_apply_parameters(local, sta, params);
 837
 838         rcu_read_unlock();
 839
 840         return 0;
 841 }
 842
 843 #ifdef CONFIG_MAC80211_MESH
 844 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 845                                  u8 *dst, u8 *next_hop)
 846 {
 847         struct ieee80211_sub_if_data *sdata;
 848         struct mesh_path *mpath;
 849         struct sta_info *sta;
 850         int err;
 851
 852         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 853
 854         rcu_read_lock();
 855         sta = sta_info_get(sdata, next_hop);
 856         if (!sta) {
 857                 rcu_read_unlock();
 858                 return -ENOENT;
 859         }
 860
 861         err = mesh_path_add(dst, sdata);
 862         if (err) {
 863                 rcu_read_unlock();
 864                 return err;
 865         }
 866
 867         mpath = mesh_path_lookup(dst, sdata);
 868         if (!mpath) {
 869                 rcu_read_unlock();
 870                 return -ENXIO;
 871         }
 872         mesh_path_fix_nexthop(mpath, sta);
 873
 874         rcu_read_unlock();
 875         return 0;
 876 }
 877
 878 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 879                                  u8 *dst)
 880 {
 881         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 882
 883         if (dst)
 884                 return mesh_path_del(dst, sdata);
 885
 886         mesh_path_flush(sdata);
 887         return 0;
 888 }
 889
 890 static int ieee80211_change_mpath(struct wiphy *wiphy,
 891                                     struct net_device *dev,
 892                                     u8 *dst, u8 *next_hop)
 893 {
 894         struct ieee80211_sub_if_data *sdata;
 895         struct mesh_path *mpath;
 896         struct sta_info *sta;
 897
 898         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 899
 900         rcu_read_lock();
 901
 902         sta = sta_info_get(sdata, next_hop);
 903         if (!sta) {
 904                 rcu_read_unlock();
 905                 return -ENOENT;
 906         }
 907
 908         mpath = mesh_path_lookup(dst, sdata);
 909         if (!mpath) {
 910                 rcu_read_unlock();
 911                 return -ENOENT;
 912         }
 913
 914         mesh_path_fix_nexthop(mpath, sta);
 915
 916         rcu_read_unlock();
 917         return 0;
 918 }
 919
 920 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 921                             struct mpath_info *pinfo)
 922 {
 923         if (mpath->next_hop)
 924                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 925         else
 926                 memset(next_hop, 0, ETH_ALEN);
 927
 928         pinfo->generation = mesh_paths_generation;
 929
 930         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 931                         MPATH_INFO_SN |
 932                         MPATH_INFO_METRIC |
 933                         MPATH_INFO_EXPTIME |
 934                         MPATH_INFO_DISCOVERY_TIMEOUT |
 935                         MPATH_INFO_DISCOVERY_RETRIES |
 936                         MPATH_INFO_FLAGS;
 937
 938         pinfo->frame_qlen = mpath->frame_queue.qlen;
 939         pinfo->sn = mpath->sn;
 940         pinfo->metric = mpath->metric;
 941         if (time_before(jiffies, mpath->exp_time))
 942                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 943         pinfo->discovery_timeout =
 944                         jiffies_to_msecs(mpath->discovery_timeout);
 945         pinfo->discovery_retries = mpath->discovery_retries;
 946         pinfo->flags = 0;
 947         if (mpath->flags & MESH_PATH_ACTIVE)
 948                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 949         if (mpath->flags & MESH_PATH_RESOLVING)
 950                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 951         if (mpath->flags & MESH_PATH_SN_VALID)
 952                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 953         if (mpath->flags & MESH_PATH_FIXED)
 954                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 955         if (mpath->flags & MESH_PATH_RESOLVING)
 956                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 957
 958         pinfo->flags = mpath->flags;
 959 }
 960
 961 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 962                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 963
 964 {
 965         struct ieee80211_sub_if_data *sdata;
 966         struct mesh_path *mpath;
 967
 968         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 969
 970         rcu_read_lock();
 971         mpath = mesh_path_lookup(dst, sdata);
 972         if (!mpath) {
 973                 rcu_read_unlock();
 974                 return -ENOENT;
 975         }
 976         memcpy(dst, mpath->dst, ETH_ALEN);
 977         mpath_set_pinfo(mpath, next_hop, pinfo);
 978         rcu_read_unlock();
 979         return 0;
 980 }
 981
 982 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 983                                  int idx, u8 *dst, u8 *next_hop,
 984                                  struct mpath_info *pinfo)
 985 {
 986         struct ieee80211_sub_if_data *sdata;
 987         struct mesh_path *mpath;
 988
 989         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 990
 991         rcu_read_lock();
 992         mpath = mesh_path_lookup_by_idx(idx, sdata);
 993         if (!mpath) {
 994                 rcu_read_unlock();
 995                 return -ENOENT;
 996         }
 997         memcpy(dst, mpath->dst, ETH_ALEN);
 998         mpath_set_pinfo(mpath, next_hop, pinfo);
 999         rcu_read_unlock();
1000         return 0;
1001 }
1002
1003 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1004                                 struct net_device *dev,
1005                                 struct mesh_config *conf)
1006 {
1007         struct ieee80211_sub_if_data *sdata;
1008         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1009
1010         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1011         return 0;
1012 }
1013
1014 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1015 {
1016         return (mask >> (parm-1)) & 0x1;
1017 }
1018
1019 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1020                                 struct net_device *dev,
1021                                 const struct mesh_config *nconf, u32 mask)
1022 {
1023         struct mesh_config *conf;
1024         struct ieee80211_sub_if_data *sdata;
1025         struct ieee80211_if_mesh *ifmsh;
1026
1027         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1028         ifmsh = &sdata->u.mesh;
1029
1030         /* Set the config options which we are interested in setting */
1031         conf = &(sdata->u.mesh.mshcfg);
1032         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1033                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1034         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1035                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1036         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1037                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1038         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1039                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1040         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1041                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1042         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1043                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1044         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1045                 conf->auto_open_plinks = nconf->auto_open_plinks;
1046         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1047                 conf->dot11MeshHWMPmaxPREQretries =
1048                         nconf->dot11MeshHWMPmaxPREQretries;
1049         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1050                 conf->path_refresh_time = nconf->path_refresh_time;
1051         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1052                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1053         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1054                 conf->dot11MeshHWMPactivePathTimeout =
1055                         nconf->dot11MeshHWMPactivePathTimeout;
1056         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1057                 conf->dot11MeshHWMPpreqMinInterval =
1058                         nconf->dot11MeshHWMPpreqMinInterval;
1059         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1060                            mask))
1061                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1062                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1063         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1064                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1065                 ieee80211_mesh_root_setup(ifmsh);
1066         }
1067         return 0;
1068 }
1069
1070 #endif
1071
1072 static int ieee80211_change_bss(struct wiphy *wiphy,
1073                                 struct net_device *dev,
1074                                 struct bss_parameters *params)
1075 {
1076         struct ieee80211_sub_if_data *sdata;
1077         u32 changed = 0;
1078
1079         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1080
1081         if (params->use_cts_prot >= 0) {
1082                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1083                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1084         }
1085         if (params->use_short_preamble >= 0) {
1086                 sdata->vif.bss_conf.use_short_preamble =
1087                         params->use_short_preamble;
1088                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1089         }
1090         if (params->use_short_slot_time >= 0) {
1091                 sdata->vif.bss_conf.use_short_slot =
1092                         params->use_short_slot_time;
1093                 changed |= BSS_CHANGED_ERP_SLOT;
1094         }
1095
1096         if (params->basic_rates) {
1097                 int i, j;
1098                 u32 rates = 0;
1099                 struct ieee80211_local *local = wiphy_priv(wiphy);
1100                 struct ieee80211_supported_band *sband =
1101                         wiphy->bands[local->oper_channel->band];
1102
1103                 for (i = 0; i < params->basic_rates_len; i++) {
1104                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1105                         for (j = 0; j < sband->n_bitrates; j++) {
1106                                 if (sband->bitrates[j].bitrate == rate)
1107                                         rates |= BIT(j);
1108                         }
1109                 }
1110                 sdata->vif.bss_conf.basic_rates = rates;
1111                 changed |= BSS_CHANGED_BASIC_RATES;
1112         }
1113
1114         ieee80211_bss_info_change_notify(sdata, changed);
1115
1116         return 0;
1117 }
1118
1119 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1120                                     struct ieee80211_txq_params *params)
1121 {
1122         struct ieee80211_local *local = wiphy_priv(wiphy);
1123         struct ieee80211_tx_queue_params p;
1124
1125         if (!local->ops->conf_tx)
1126                 return -EOPNOTSUPP;
1127
1128         memset(&p, 0, sizeof(p));
1129         p.aifs = params->aifs;
1130         p.cw_max = params->cwmax;
1131         p.cw_min = params->cwmin;
1132         p.txop = params->txop;
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_RTS_THRESHOLD) {
1236                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1237
1238                 if (err)
1239                         return err;
1240         }
1241
1242         if (changed & WIPHY_PARAM_RETRY_SHORT)
1243                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1244         if (changed & WIPHY_PARAM_RETRY_LONG)
1245                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1246         if (changed &
1247             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1248                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1249
1250         return 0;
1251 }
1252
1253 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1254                                   enum tx_power_setting type, int dbm)
1255 {
1256         struct ieee80211_local *local = wiphy_priv(wiphy);
1257         struct ieee80211_channel *chan = local->hw.conf.channel;
1258         u32 changes = 0;
1259
1260         switch (type) {
1261         case TX_POWER_AUTOMATIC:
1262                 local->user_power_level = -1;
1263                 break;
1264         case TX_POWER_LIMITED:
1265                 if (dbm < 0)
1266                         return -EINVAL;
1267                 local->user_power_level = dbm;
1268                 break;
1269         case TX_POWER_FIXED:
1270                 if (dbm < 0)
1271                         return -EINVAL;
1272                 /* TODO: move to cfg80211 when it knows the channel */
1273                 if (dbm > chan->max_power)
1274                         return -EINVAL;
1275                 local->user_power_level = dbm;
1276                 break;
1277         }
1278
1279         ieee80211_hw_config(local, changes);
1280
1281         return 0;
1282 }
1283
1284 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1285 {
1286         struct ieee80211_local *local = wiphy_priv(wiphy);
1287
1288         *dbm = local->hw.conf.power_level;
1289
1290         return 0;
1291 }
1292
1293 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1294                                   u8 *addr)
1295 {
1296         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1297
1298         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1299
1300         return 0;
1301 }
1302
1303 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1304 {
1305         struct ieee80211_local *local = wiphy_priv(wiphy);
1306
1307         drv_rfkill_poll(local);
1308 }
1309
1310 #ifdef CONFIG_NL80211_TESTMODE
1311 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1312 {
1313         struct ieee80211_local *local = wiphy_priv(wiphy);
1314
1315         if (!local->ops->testmode_cmd)
1316                 return -EOPNOTSUPP;
1317
1318         return local->ops->testmode_cmd(&local->hw, data, len);
1319 }
1320 #endif
1321
1322 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1323                              enum ieee80211_smps_mode smps_mode)
1324 {
1325         const u8 *ap;
1326         enum ieee80211_smps_mode old_req;
1327         int err;
1328
1329         old_req = sdata->u.mgd.req_smps;
1330         sdata->u.mgd.req_smps = smps_mode;
1331
1332         if (old_req == smps_mode &&
1333             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1334                 return 0;
1335
1336         /*
1337          * If not associated, or current association is not an HT
1338          * association, there's no need to send an action frame.
1339          */
1340         if (!sdata->u.mgd.associated ||
1341             sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
1342                 mutex_lock(&sdata->local->iflist_mtx);
1343                 ieee80211_recalc_smps(sdata->local, sdata);
1344                 mutex_unlock(&sdata->local->iflist_mtx);
1345                 return 0;
1346         }
1347
1348         ap = sdata->u.mgd.associated->cbss.bssid;
1349
1350         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1351                 if (sdata->u.mgd.powersave)
1352                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1353                 else
1354                         smps_mode = IEEE80211_SMPS_OFF;
1355         }
1356
1357         /* send SM PS frame to AP */
1358         err = ieee80211_send_smps_action(sdata, smps_mode,
1359                                          ap, ap);
1360         if (err)
1361                 sdata->u.mgd.req_smps = old_req;
1362
1363         return err;
1364 }
1365
1366 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1367                                     bool enabled, int timeout)
1368 {
1369         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1370         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1371         struct ieee80211_conf *conf = &local->hw.conf;
1372
1373         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1374                 return -EOPNOTSUPP;
1375
1376         if (enabled == sdata->u.mgd.powersave &&
1377             timeout == conf->dynamic_ps_timeout)
1378                 return 0;
1379
1380         sdata->u.mgd.powersave = enabled;
1381         conf->dynamic_ps_timeout = timeout;
1382
1383         /* no change, but if automatic follow powersave */
1384         mutex_lock(&sdata->u.mgd.mtx);
1385         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1386         mutex_unlock(&sdata->u.mgd.mtx);
1387
1388         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1389                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1390
1391         ieee80211_recalc_ps(local, -1);
1392
1393         return 0;
1394 }
1395
1396 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1397                                       struct net_device *dev,
1398                                       const u8 *addr,
1399                                       const struct cfg80211_bitrate_mask *mask)
1400 {
1401         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1402         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1403         int i;
1404         u32 target_rate;
1405         struct ieee80211_supported_band *sband;
1406
1407         /*
1408          * This _could_ be supported by providing a hook for
1409          * drivers for this function, but at this point it
1410          * doesn't seem worth bothering.
1411          */
1412         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1413                 return -EOPNOTSUPP;
1414
1415         sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
1416
1417         /*
1418          * target_rate = -1, rate->fixed = 0 means auto only, so use all rates
1419          * target_rate = X, rate->fixed = 1 means only rate X
1420          * target_rate = X, rate->fixed = 0 means all rates <= X
1421          */
1422         sdata->max_ratectrl_rateidx = -1;
1423         sdata->force_unicast_rateidx = -1;
1424
1425         if (mask->fixed)
1426                 target_rate = mask->fixed / 100;
1427         else if (mask->maxrate)
1428                 target_rate = mask->maxrate / 100;
1429         else
1430                 return 0;
1431
1432         for (i = 0; i< sband->n_bitrates; i++) {
1433                 if (target_rate != sband->bitrates[i].bitrate)
1434                         continue;
1435
1436                 /* requested bitrate found */
1437                 sdata->max_ratectrl_rateidx = i;
1438                 if (mask->fixed)
1439                         sdata->force_unicast_rateidx = i;
1440                 return 0;
1441         }
1442
1443         return -EINVAL;
1444 }
1445
1446 struct cfg80211_ops mac80211_config_ops = {
1447         .add_virtual_intf = ieee80211_add_iface,
1448         .del_virtual_intf = ieee80211_del_iface,
1449         .change_virtual_intf = ieee80211_change_iface,
1450         .add_key = ieee80211_add_key,
1451         .del_key = ieee80211_del_key,
1452         .get_key = ieee80211_get_key,
1453         .set_default_key = ieee80211_config_default_key,
1454         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1455         .add_beacon = ieee80211_add_beacon,
1456         .set_beacon = ieee80211_set_beacon,
1457         .del_beacon = ieee80211_del_beacon,
1458         .add_station = ieee80211_add_station,
1459         .del_station = ieee80211_del_station,
1460         .change_station = ieee80211_change_station,
1461         .get_station = ieee80211_get_station,
1462         .dump_station = ieee80211_dump_station,
1463 #ifdef CONFIG_MAC80211_MESH
1464         .add_mpath = ieee80211_add_mpath,
1465         .del_mpath = ieee80211_del_mpath,
1466         .change_mpath = ieee80211_change_mpath,
1467         .get_mpath = ieee80211_get_mpath,
1468         .dump_mpath = ieee80211_dump_mpath,
1469         .set_mesh_params = ieee80211_set_mesh_params,
1470         .get_mesh_params = ieee80211_get_mesh_params,
1471 #endif
1472         .change_bss = ieee80211_change_bss,
1473         .set_txq_params = ieee80211_set_txq_params,
1474         .set_channel = ieee80211_set_channel,
1475         .suspend = ieee80211_suspend,
1476         .resume = ieee80211_resume,
1477         .scan = ieee80211_scan,
1478         .auth = ieee80211_auth,
1479         .assoc = ieee80211_assoc,
1480         .deauth = ieee80211_deauth,
1481         .disassoc = ieee80211_disassoc,
1482         .join_ibss = ieee80211_join_ibss,
1483         .leave_ibss = ieee80211_leave_ibss,
1484         .set_wiphy_params = ieee80211_set_wiphy_params,
1485         .set_tx_power = ieee80211_set_tx_power,
1486         .get_tx_power = ieee80211_get_tx_power,
1487         .set_wds_peer = ieee80211_set_wds_peer,
1488         .rfkill_poll = ieee80211_rfkill_poll,
1489         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1490         .set_power_mgmt = ieee80211_set_power_mgmt,
1491         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1492 };