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->local, 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->local, 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->local, 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                 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_local *local = wdev_priv(dev->ieee80211_ptr);
 418         struct sta_info *sta;
 419         int ret = -ENOENT;
 420
 421         rcu_read_lock();
 422
 423         /* XXX: verify sta->dev == dev */
 424
 425         sta = sta_info_get(local, mac);
 426         if (sta) {
 427                 ret = 0;
 428                 sta_set_sinfo(sta, sinfo);
 429         }
 430
 431         rcu_read_unlock();
 432
 433         return ret;
 434 }
 435
 436 /*
 437  * This handles both adding a beacon and setting new beacon info
 438  */
 439 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 440                                    struct beacon_parameters *params)
 441 {
 442         struct beacon_data *new, *old;
 443         int new_head_len, new_tail_len;
 444         int size;
 445         int err = -EINVAL;
 446
 447         old = sdata->u.ap.beacon;
 448
 449         /* head must not be zero-length */
 450         if (params->head && !params->head_len)
 451                 return -EINVAL;
 452
 453         /*
 454          * This is a kludge. beacon interval should really be part
 455          * of the beacon information.
 456          */
 457         if (params->interval &&
 458             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 459                 sdata->vif.bss_conf.beacon_int = params->interval;
 460                 ieee80211_bss_info_change_notify(sdata,
 461                                                  BSS_CHANGED_BEACON_INT);
 462         }
 463
 464         /* Need to have a beacon head if we don't have one yet */
 465         if (!params->head && !old)
 466                 return err;
 467
 468         /* sorry, no way to start beaconing without dtim period */
 469         if (!params->dtim_period && !old)
 470                 return err;
 471
 472         /* new or old head? */
 473         if (params->head)
 474                 new_head_len = params->head_len;
 475         else
 476                 new_head_len = old->head_len;
 477
 478         /* new or old tail? */
 479         if (params->tail || !old)
 480                 /* params->tail_len will be zero for !params->tail */
 481                 new_tail_len = params->tail_len;
 482         else
 483                 new_tail_len = old->tail_len;
 484
 485         size = sizeof(*new) + new_head_len + new_tail_len;
 486
 487         new = kzalloc(size, GFP_KERNEL);
 488         if (!new)
 489                 return -ENOMEM;
 490
 491         /* start filling the new info now */
 492
 493         /* new or old dtim period? */
 494         if (params->dtim_period)
 495                 new->dtim_period = params->dtim_period;
 496         else
 497                 new->dtim_period = old->dtim_period;
 498
 499         /*
 500          * pointers go into the block we allocated,
 501          * memory is | beacon_data | head | tail |
 502          */
 503         new->head = ((u8 *) new) + sizeof(*new);
 504         new->tail = new->head + new_head_len;
 505         new->head_len = new_head_len;
 506         new->tail_len = new_tail_len;
 507
 508         /* copy in head */
 509         if (params->head)
 510                 memcpy(new->head, params->head, new_head_len);
 511         else
 512                 memcpy(new->head, old->head, new_head_len);
 513
 514         /* copy in optional tail */
 515         if (params->tail)
 516                 memcpy(new->tail, params->tail, new_tail_len);
 517         else
 518                 if (old)
 519                         memcpy(new->tail, old->tail, new_tail_len);
 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, dev->dev_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         rcu_read_lock();
 754
 755         err = sta_info_insert(sta);
 756         if (err) {
 757                 rcu_read_unlock();
 758                 return err;
 759         }
 760
 761         if (layer2_update)
 762                 ieee80211_send_layer2_update(sta);
 763
 764         rcu_read_unlock();
 765
 766         return 0;
 767 }
 768
 769 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 770                                  u8 *mac)
 771 {
 772         struct ieee80211_local *local = wiphy_priv(wiphy);
 773         struct ieee80211_sub_if_data *sdata;
 774         struct sta_info *sta;
 775
 776         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 777
 778         if (mac) {
 779                 rcu_read_lock();
 780
 781                 /* XXX: get sta belonging to dev */
 782                 sta = sta_info_get(local, mac);
 783                 if (!sta) {
 784                         rcu_read_unlock();
 785                         return -ENOENT;
 786                 }
 787
 788                 sta_info_unlink(&sta);
 789                 rcu_read_unlock();
 790
 791                 sta_info_destroy(sta);
 792         } else
 793                 sta_info_flush(local, sdata);
 794
 795         return 0;
 796 }
 797
 798 static int ieee80211_change_station(struct wiphy *wiphy,
 799                                     struct net_device *dev,
 800                                     u8 *mac,
 801                                     struct station_parameters *params)
 802 {
 803         struct ieee80211_local *local = wiphy_priv(wiphy);
 804         struct sta_info *sta;
 805         struct ieee80211_sub_if_data *vlansdata;
 806
 807         rcu_read_lock();
 808
 809         /* XXX: get sta belonging to dev */
 810         sta = sta_info_get(local, mac);
 811         if (!sta) {
 812                 rcu_read_unlock();
 813                 return -ENOENT;
 814         }
 815
 816         if (params->vlan && params->vlan != sta->sdata->dev) {
 817                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 818
 819                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 820                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 821                         rcu_read_unlock();
 822                         return -EINVAL;
 823                 }
 824
 825                 if (params->vlan->ieee80211_ptr->use_4addr) {
 826                         if (vlansdata->u.vlan.sta) {
 827                                 rcu_read_unlock();
 828                                 return -EBUSY;
 829                         }
 830
 831                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 832                 }
 833
 834                 sta->sdata = vlansdata;
 835                 ieee80211_send_layer2_update(sta);
 836         }
 837
 838         sta_apply_parameters(local, sta, params);
 839
 840         rcu_read_unlock();
 841
 842         return 0;
 843 }
 844
 845 #ifdef CONFIG_MAC80211_MESH
 846 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 847                                  u8 *dst, u8 *next_hop)
 848 {
 849         struct ieee80211_local *local = wiphy_priv(wiphy);
 850         struct ieee80211_sub_if_data *sdata;
 851         struct mesh_path *mpath;
 852         struct sta_info *sta;
 853         int err;
 854
 855         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 856
 857         rcu_read_lock();
 858         sta = sta_info_get(local, next_hop);
 859         if (!sta) {
 860                 rcu_read_unlock();
 861                 return -ENOENT;
 862         }
 863
 864         err = mesh_path_add(dst, sdata);
 865         if (err) {
 866                 rcu_read_unlock();
 867                 return err;
 868         }
 869
 870         mpath = mesh_path_lookup(dst, sdata);
 871         if (!mpath) {
 872                 rcu_read_unlock();
 873                 return -ENXIO;
 874         }
 875         mesh_path_fix_nexthop(mpath, sta);
 876
 877         rcu_read_unlock();
 878         return 0;
 879 }
 880
 881 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 882                                  u8 *dst)
 883 {
 884         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 885
 886         if (dst)
 887                 return mesh_path_del(dst, sdata);
 888
 889         mesh_path_flush(sdata);
 890         return 0;
 891 }
 892
 893 static int ieee80211_change_mpath(struct wiphy *wiphy,
 894                                     struct net_device *dev,
 895                                     u8 *dst, u8 *next_hop)
 896 {
 897         struct ieee80211_local *local = wiphy_priv(wiphy);
 898         struct ieee80211_sub_if_data *sdata;
 899         struct mesh_path *mpath;
 900         struct sta_info *sta;
 901
 902         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 903
 904         rcu_read_lock();
 905
 906         sta = sta_info_get(local, next_hop);
 907         if (!sta) {
 908                 rcu_read_unlock();
 909                 return -ENOENT;
 910         }
 911
 912         mpath = mesh_path_lookup(dst, sdata);
 913         if (!mpath) {
 914                 rcu_read_unlock();
 915                 return -ENOENT;
 916         }
 917
 918         mesh_path_fix_nexthop(mpath, sta);
 919
 920         rcu_read_unlock();
 921         return 0;
 922 }
 923
 924 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 925                             struct mpath_info *pinfo)
 926 {
 927         if (mpath->next_hop)
 928                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 929         else
 930                 memset(next_hop, 0, ETH_ALEN);
 931
 932         pinfo->generation = mesh_paths_generation;
 933
 934         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 935                         MPATH_INFO_SN |
 936                         MPATH_INFO_METRIC |
 937                         MPATH_INFO_EXPTIME |
 938                         MPATH_INFO_DISCOVERY_TIMEOUT |
 939                         MPATH_INFO_DISCOVERY_RETRIES |
 940                         MPATH_INFO_FLAGS;
 941
 942         pinfo->frame_qlen = mpath->frame_queue.qlen;
 943         pinfo->sn = mpath->sn;
 944         pinfo->metric = mpath->metric;
 945         if (time_before(jiffies, mpath->exp_time))
 946                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 947         pinfo->discovery_timeout =
 948                         jiffies_to_msecs(mpath->discovery_timeout);
 949         pinfo->discovery_retries = mpath->discovery_retries;
 950         pinfo->flags = 0;
 951         if (mpath->flags & MESH_PATH_ACTIVE)
 952                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 953         if (mpath->flags & MESH_PATH_RESOLVING)
 954                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 955         if (mpath->flags & MESH_PATH_SN_VALID)
 956                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 957         if (mpath->flags & MESH_PATH_FIXED)
 958                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 959         if (mpath->flags & MESH_PATH_RESOLVING)
 960                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 961
 962         pinfo->flags = mpath->flags;
 963 }
 964
 965 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 966                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 967
 968 {
 969         struct ieee80211_sub_if_data *sdata;
 970         struct mesh_path *mpath;
 971
 972         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 973
 974         rcu_read_lock();
 975         mpath = mesh_path_lookup(dst, sdata);
 976         if (!mpath) {
 977                 rcu_read_unlock();
 978                 return -ENOENT;
 979         }
 980         memcpy(dst, mpath->dst, ETH_ALEN);
 981         mpath_set_pinfo(mpath, next_hop, pinfo);
 982         rcu_read_unlock();
 983         return 0;
 984 }
 985
 986 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 987                                  int idx, u8 *dst, u8 *next_hop,
 988                                  struct mpath_info *pinfo)
 989 {
 990         struct ieee80211_sub_if_data *sdata;
 991         struct mesh_path *mpath;
 992
 993         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 994
 995         rcu_read_lock();
 996         mpath = mesh_path_lookup_by_idx(idx, sdata);
 997         if (!mpath) {
 998                 rcu_read_unlock();
 999                 return -ENOENT;
1000         }
1001         memcpy(dst, mpath->dst, ETH_ALEN);
1002         mpath_set_pinfo(mpath, next_hop, pinfo);
1003         rcu_read_unlock();
1004         return 0;
1005 }
1006
1007 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1008                                 struct net_device *dev,
1009                                 struct mesh_config *conf)
1010 {
1011         struct ieee80211_sub_if_data *sdata;
1012         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1013
1014         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1015         return 0;
1016 }
1017
1018 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1019 {
1020         return (mask >> (parm-1)) & 0x1;
1021 }
1022
1023 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1024                                 struct net_device *dev,
1025                                 const struct mesh_config *nconf, u32 mask)
1026 {
1027         struct mesh_config *conf;
1028         struct ieee80211_sub_if_data *sdata;
1029         struct ieee80211_if_mesh *ifmsh;
1030
1031         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1032         ifmsh = &sdata->u.mesh;
1033
1034         /* Set the config options which we are interested in setting */
1035         conf = &(sdata->u.mesh.mshcfg);
1036         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1037                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1038         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1039                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1040         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1041                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1042         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1043                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1044         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1045                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1046         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1047                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1048         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1049                 conf->auto_open_plinks = nconf->auto_open_plinks;
1050         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1051                 conf->dot11MeshHWMPmaxPREQretries =
1052                         nconf->dot11MeshHWMPmaxPREQretries;
1053         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1054                 conf->path_refresh_time = nconf->path_refresh_time;
1055         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1056                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1057         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1058                 conf->dot11MeshHWMPactivePathTimeout =
1059                         nconf->dot11MeshHWMPactivePathTimeout;
1060         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1061                 conf->dot11MeshHWMPpreqMinInterval =
1062                         nconf->dot11MeshHWMPpreqMinInterval;
1063         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1064                            mask))
1065                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1066                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1067         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1068                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1069                 ieee80211_mesh_root_setup(ifmsh);
1070         }
1071         return 0;
1072 }
1073
1074 #endif
1075
1076 static int ieee80211_change_bss(struct wiphy *wiphy,
1077                                 struct net_device *dev,
1078                                 struct bss_parameters *params)
1079 {
1080         struct ieee80211_sub_if_data *sdata;
1081         u32 changed = 0;
1082
1083         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1084
1085         if (params->use_cts_prot >= 0) {
1086                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1087                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1088         }
1089         if (params->use_short_preamble >= 0) {
1090                 sdata->vif.bss_conf.use_short_preamble =
1091                         params->use_short_preamble;
1092                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1093         }
1094         if (params->use_short_slot_time >= 0) {
1095                 sdata->vif.bss_conf.use_short_slot =
1096                         params->use_short_slot_time;
1097                 changed |= BSS_CHANGED_ERP_SLOT;
1098         }
1099
1100         if (params->basic_rates) {
1101                 int i, j;
1102                 u32 rates = 0;
1103                 struct ieee80211_local *local = wiphy_priv(wiphy);
1104                 struct ieee80211_supported_band *sband =
1105                         wiphy->bands[local->oper_channel->band];
1106
1107                 for (i = 0; i < params->basic_rates_len; i++) {
1108                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1109                         for (j = 0; j < sband->n_bitrates; j++) {
1110                                 if (sband->bitrates[j].bitrate == rate)
1111                                         rates |= BIT(j);
1112                         }
1113                 }
1114                 sdata->vif.bss_conf.basic_rates = rates;
1115                 changed |= BSS_CHANGED_BASIC_RATES;
1116         }
1117
1118         ieee80211_bss_info_change_notify(sdata, changed);
1119
1120         return 0;
1121 }
1122
1123 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1124                                     struct ieee80211_txq_params *params)
1125 {
1126         struct ieee80211_local *local = wiphy_priv(wiphy);
1127         struct ieee80211_tx_queue_params p;
1128
1129         if (!local->ops->conf_tx)
1130                 return -EOPNOTSUPP;
1131
1132         memset(&p, 0, sizeof(p));
1133         p.aifs = params->aifs;
1134         p.cw_max = params->cwmax;
1135         p.cw_min = params->cwmin;
1136         p.txop = params->txop;
1137         if (drv_conf_tx(local, params->queue, &p)) {
1138                 printk(KERN_DEBUG "%s: failed to set TX queue "
1139                        "parameters for queue %d\n",
1140                        wiphy_name(local->hw.wiphy), params->queue);
1141                 return -EINVAL;
1142         }
1143
1144         return 0;
1145 }
1146
1147 static int ieee80211_set_channel(struct wiphy *wiphy,
1148                                  struct ieee80211_channel *chan,
1149                                  enum nl80211_channel_type channel_type)
1150 {
1151         struct ieee80211_local *local = wiphy_priv(wiphy);
1152
1153         local->oper_channel = chan;
1154         local->oper_channel_type = channel_type;
1155
1156         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1157 }
1158
1159 #ifdef CONFIG_PM
1160 static int ieee80211_suspend(struct wiphy *wiphy)
1161 {
1162         return __ieee80211_suspend(wiphy_priv(wiphy));
1163 }
1164
1165 static int ieee80211_resume(struct wiphy *wiphy)
1166 {
1167         return __ieee80211_resume(wiphy_priv(wiphy));
1168 }
1169 #else
1170 #define ieee80211_suspend NULL
1171 #define ieee80211_resume NULL
1172 #endif
1173
1174 static int ieee80211_scan(struct wiphy *wiphy,
1175                           struct net_device *dev,
1176                           struct cfg80211_scan_request *req)
1177 {
1178         struct ieee80211_sub_if_data *sdata;
1179
1180         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1181
1182         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1183             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1184             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1185             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1186                 return -EOPNOTSUPP;
1187
1188         return ieee80211_request_scan(sdata, req);
1189 }
1190
1191 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1192                           struct cfg80211_auth_request *req)
1193 {
1194         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1195 }
1196
1197 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1198                            struct cfg80211_assoc_request *req)
1199 {
1200         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1201 }
1202
1203 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1204                             struct cfg80211_deauth_request *req,
1205                             void *cookie)
1206 {
1207         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1208                                     req, cookie);
1209 }
1210
1211 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1212                               struct cfg80211_disassoc_request *req,
1213                               void *cookie)
1214 {
1215         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1216                                       req, cookie);
1217 }
1218
1219 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1220                                struct cfg80211_ibss_params *params)
1221 {
1222         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1223
1224         return ieee80211_ibss_join(sdata, params);
1225 }
1226
1227 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1228 {
1229         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1230
1231         return ieee80211_ibss_leave(sdata);
1232 }
1233
1234 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1235 {
1236         struct ieee80211_local *local = wiphy_priv(wiphy);
1237         int err;
1238
1239         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1240                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1241
1242                 if (err)
1243                         return err;
1244         }
1245
1246         if (changed & WIPHY_PARAM_RETRY_SHORT)
1247                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1248         if (changed & WIPHY_PARAM_RETRY_LONG)
1249                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1250         if (changed &
1251             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1252                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1253
1254         return 0;
1255 }
1256
1257 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1258                                   enum tx_power_setting type, int dbm)
1259 {
1260         struct ieee80211_local *local = wiphy_priv(wiphy);
1261         struct ieee80211_channel *chan = local->hw.conf.channel;
1262         u32 changes = 0;
1263
1264         switch (type) {
1265         case TX_POWER_AUTOMATIC:
1266                 local->user_power_level = -1;
1267                 break;
1268         case TX_POWER_LIMITED:
1269                 if (dbm < 0)
1270                         return -EINVAL;
1271                 local->user_power_level = dbm;
1272                 break;
1273         case TX_POWER_FIXED:
1274                 if (dbm < 0)
1275                         return -EINVAL;
1276                 /* TODO: move to cfg80211 when it knows the channel */
1277                 if (dbm > chan->max_power)
1278                         return -EINVAL;
1279                 local->user_power_level = dbm;
1280                 break;
1281         }
1282
1283         ieee80211_hw_config(local, changes);
1284
1285         return 0;
1286 }
1287
1288 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1289 {
1290         struct ieee80211_local *local = wiphy_priv(wiphy);
1291
1292         *dbm = local->hw.conf.power_level;
1293
1294         return 0;
1295 }
1296
1297 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1298                                   u8 *addr)
1299 {
1300         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1301
1302         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1303
1304         return 0;
1305 }
1306
1307 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1308 {
1309         struct ieee80211_local *local = wiphy_priv(wiphy);
1310
1311         drv_rfkill_poll(local);
1312 }
1313
1314 #ifdef CONFIG_NL80211_TESTMODE
1315 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1316 {
1317         struct ieee80211_local *local = wiphy_priv(wiphy);
1318
1319         if (!local->ops->testmode_cmd)
1320                 return -EOPNOTSUPP;
1321
1322         return local->ops->testmode_cmd(&local->hw, data, len);
1323 }
1324 #endif
1325
1326 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1327                                     bool enabled, int timeout)
1328 {
1329         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1330         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1331         struct ieee80211_conf *conf = &local->hw.conf;
1332
1333         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1334                 return -EOPNOTSUPP;
1335
1336         if (enabled == sdata->u.mgd.powersave &&
1337             timeout == conf->dynamic_ps_timeout)
1338                 return 0;
1339
1340         sdata->u.mgd.powersave = enabled;
1341         conf->dynamic_ps_timeout = timeout;
1342
1343         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1344                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1345
1346         ieee80211_recalc_ps(local, -1);
1347
1348         return 0;
1349 }
1350
1351 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1352                                       struct net_device *dev,
1353                                       const u8 *addr,
1354                                       const struct cfg80211_bitrate_mask *mask)
1355 {
1356         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1357         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1358         int i, err = -EINVAL;
1359         u32 target_rate;
1360         struct ieee80211_supported_band *sband;
1361
1362         sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
1363
1364         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
1365          * target_rate = X, rate->fixed = 1 means only rate X
1366          * target_rate = X, rate->fixed = 0 means all rates <= X */
1367         sdata->max_ratectrl_rateidx = -1;
1368         sdata->force_unicast_rateidx = -1;
1369
1370         if (mask->fixed)
1371                 target_rate = mask->fixed / 100;
1372         else if (mask->maxrate)
1373                 target_rate = mask->maxrate / 100;
1374         else
1375                 return 0;
1376
1377         for (i=0; i< sband->n_bitrates; i++) {
1378                 struct ieee80211_rate *brate = &sband->bitrates[i];
1379                 int this_rate = brate->bitrate;
1380
1381                 if (target_rate == this_rate) {
1382                         sdata->max_ratectrl_rateidx = i;
1383                         if (mask->fixed)
1384                                 sdata->force_unicast_rateidx = i;
1385                         err = 0;
1386                         break;
1387                 }
1388         }
1389
1390         return err;
1391 }
1392
1393 struct cfg80211_ops mac80211_config_ops = {
1394         .add_virtual_intf = ieee80211_add_iface,
1395         .del_virtual_intf = ieee80211_del_iface,
1396         .change_virtual_intf = ieee80211_change_iface,
1397         .add_key = ieee80211_add_key,
1398         .del_key = ieee80211_del_key,
1399         .get_key = ieee80211_get_key,
1400         .set_default_key = ieee80211_config_default_key,
1401         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1402         .add_beacon = ieee80211_add_beacon,
1403         .set_beacon = ieee80211_set_beacon,
1404         .del_beacon = ieee80211_del_beacon,
1405         .add_station = ieee80211_add_station,
1406         .del_station = ieee80211_del_station,
1407         .change_station = ieee80211_change_station,
1408         .get_station = ieee80211_get_station,
1409         .dump_station = ieee80211_dump_station,
1410 #ifdef CONFIG_MAC80211_MESH
1411         .add_mpath = ieee80211_add_mpath,
1412         .del_mpath = ieee80211_del_mpath,
1413         .change_mpath = ieee80211_change_mpath,
1414         .get_mpath = ieee80211_get_mpath,
1415         .dump_mpath = ieee80211_dump_mpath,
1416         .set_mesh_params = ieee80211_set_mesh_params,
1417         .get_mesh_params = ieee80211_get_mesh_params,
1418 #endif
1419         .change_bss = ieee80211_change_bss,
1420         .set_txq_params = ieee80211_set_txq_params,
1421         .set_channel = ieee80211_set_channel,
1422         .suspend = ieee80211_suspend,
1423         .resume = ieee80211_resume,
1424         .scan = ieee80211_scan,
1425         .auth = ieee80211_auth,
1426         .assoc = ieee80211_assoc,
1427         .deauth = ieee80211_deauth,
1428         .disassoc = ieee80211_disassoc,
1429         .join_ibss = ieee80211_join_ibss,
1430         .leave_ibss = ieee80211_leave_ibss,
1431         .set_wiphy_params = ieee80211_set_wiphy_params,
1432         .set_tx_power = ieee80211_set_tx_power,
1433         .get_tx_power = ieee80211_get_tx_power,
1434         .set_wds_peer = ieee80211_set_wds_peer,
1435         .rfkill_poll = ieee80211_rfkill_poll,
1436         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1437         .set_power_mgmt = ieee80211_set_power_mgmt,
1438         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1439 };