SAFE public projects git trees. - safe/jmp/linux-2.6/blob - 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                 sinfo->filled |= STATION_INFO_SIGNAL;
 359                 sinfo->signal = (s8)sta->last_signal;
 360         }
 361
 362         sinfo->txrate.flags = 0;
 363         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 364                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 365         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 366                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 367         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 368                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 369
 370         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 371                 struct ieee80211_supported_band *sband;
 372                 sband = sta->local->hw.wiphy->bands[
 373                                 sta->local->hw.conf.channel->band];
 374                 sinfo->txrate.legacy =
 375                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 376         } else
 377                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 378
 379         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 380 #ifdef CONFIG_MAC80211_MESH
 381                 sinfo->filled |= STATION_INFO_LLID |
 382                                  STATION_INFO_PLID |
 383                                  STATION_INFO_PLINK_STATE;
 384
 385                 sinfo->llid = le16_to_cpu(sta->llid);
 386                 sinfo->plid = le16_to_cpu(sta->plid);
 387                 sinfo->plink_state = sta->plink_state;
 388 #endif
 389         }
 390 }
 391
 392
 393 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 394                                  int idx, u8 *mac, struct station_info *sinfo)
 395 {
 396         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 397         struct sta_info *sta;
 398         int ret = -ENOENT;
 399
 400         rcu_read_lock();
 401
 402         sta = sta_info_get_by_idx(sdata, idx);
 403         if (sta) {
 404                 ret = 0;
 405                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 406                 sta_set_sinfo(sta, sinfo);
 407         }
 408
 409         rcu_read_unlock();
 410
 411         return ret;
 412 }
 413
 414 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 415                                  u8 *mac, struct station_info *sinfo)
 416 {
 417         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 418         struct sta_info *sta;
 419         int ret = -ENOENT;
 420
 421         rcu_read_lock();
 422
 423         sta = sta_info_get(sdata, mac);
 424         if (sta) {
 425                 ret = 0;
 426                 sta_set_sinfo(sta, sinfo);
 427         }
 428
 429         rcu_read_unlock();
 430
 431         return ret;
 432 }
 433
 434 /*
 435  * This handles both adding a beacon and setting new beacon info
 436  */
 437 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 438                                    struct beacon_parameters *params)
 439 {
 440         struct beacon_data *new, *old;
 441         int new_head_len, new_tail_len;
 442         int size;
 443         int err = -EINVAL;
 444
 445         old = sdata->u.ap.beacon;
 446
 447         /* head must not be zero-length */
 448         if (params->head && !params->head_len)
 449                 return -EINVAL;
 450
 451         /*
 452          * This is a kludge. beacon interval should really be part
 453          * of the beacon information.
 454          */
 455         if (params->interval &&
 456             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 457                 sdata->vif.bss_conf.beacon_int = params->interval;
 458                 ieee80211_bss_info_change_notify(sdata,
 459                                                  BSS_CHANGED_BEACON_INT);
 460         }
 461
 462         /* Need to have a beacon head if we don't have one yet */
 463         if (!params->head && !old)
 464                 return err;
 465
 466         /* sorry, no way to start beaconing without dtim period */
 467         if (!params->dtim_period && !old)
 468                 return err;
 469
 470         /* new or old head? */
 471         if (params->head)
 472                 new_head_len = params->head_len;
 473         else
 474                 new_head_len = old->head_len;
 475
 476         /* new or old tail? */
 477         if (params->tail || !old)
 478                 /* params->tail_len will be zero for !params->tail */
 479                 new_tail_len = params->tail_len;
 480         else
 481                 new_tail_len = old->tail_len;
 482
 483         size = sizeof(*new) + new_head_len + new_tail_len;
 484
 485         new = kzalloc(size, GFP_KERNEL);
 486         if (!new)
 487                 return -ENOMEM;
 488
 489         /* start filling the new info now */
 490
 491         /* new or old dtim period? */
 492         if (params->dtim_period)
 493                 new->dtim_period = params->dtim_period;
 494         else
 495                 new->dtim_period = old->dtim_period;
 496
 497         /*
 498          * pointers go into the block we allocated,
 499          * memory is | beacon_data | head | tail |
 500          */
 501         new->head = ((u8 *) new) + sizeof(*new);
 502         new->tail = new->head + new_head_len;
 503         new->head_len = new_head_len;
 504         new->tail_len = new_tail_len;
 505
 506         /* copy in head */
 507         if (params->head)
 508                 memcpy(new->head, params->head, new_head_len);
 509         else
 510                 memcpy(new->head, old->head, new_head_len);
 511
 512         /* copy in optional tail */
 513         if (params->tail)
 514                 memcpy(new->tail, params->tail, new_tail_len);
 515         else
 516                 if (old)
 517                         memcpy(new->tail, old->tail, new_tail_len);
 518
 519         rcu_assign_pointer(sdata->u.ap.beacon, new);
 520
 521         synchronize_rcu();
 522
 523         kfree(old);
 524
 525         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 526                                                 BSS_CHANGED_BEACON);
 527         return 0;
 528 }
 529
 530 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 531                                 struct beacon_parameters *params)
 532 {
 533         struct ieee80211_sub_if_data *sdata;
 534         struct beacon_data *old;
 535
 536         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 537
 538         old = sdata->u.ap.beacon;
 539
 540         if (old)
 541                 return -EALREADY;
 542
 543         return ieee80211_config_beacon(sdata, params);
 544 }
 545
 546 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 547                                 struct beacon_parameters *params)
 548 {
 549         struct ieee80211_sub_if_data *sdata;
 550         struct beacon_data *old;
 551
 552         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 553
 554         old = sdata->u.ap.beacon;
 555
 556         if (!old)
 557                 return -ENOENT;
 558
 559         return ieee80211_config_beacon(sdata, params);
 560 }
 561
 562 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 563 {
 564         struct ieee80211_sub_if_data *sdata;
 565         struct beacon_data *old;
 566
 567         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 568
 569         old = sdata->u.ap.beacon;
 570
 571         if (!old)
 572                 return -ENOENT;
 573
 574         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 575         synchronize_rcu();
 576         kfree(old);
 577
 578         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 579         return 0;
 580 }
 581
 582 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 583 struct iapp_layer2_update {
 584         u8 da[ETH_ALEN];        /* broadcast */
 585         u8 sa[ETH_ALEN];        /* STA addr */
 586         __be16 len;             /* 6 */
 587         u8 dsap;                /* 0 */
 588         u8 ssap;                /* 0 */
 589         u8 control;
 590         u8 xid_info[3];
 591 } __attribute__ ((packed));
 592
 593 static void ieee80211_send_layer2_update(struct sta_info *sta)
 594 {
 595         struct iapp_layer2_update *msg;
 596         struct sk_buff *skb;
 597
 598         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 599          * bridge devices */
 600
 601         skb = dev_alloc_skb(sizeof(*msg));
 602         if (!skb)
 603                 return;
 604         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 605
 606         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 607          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 608
 609         memset(msg->da, 0xff, ETH_ALEN);
 610         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 611         msg->len = htons(6);
 612         msg->dsap = 0;
 613         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 614         msg->control = 0xaf;    /* XID response lsb.1111F101.
 615                                  * F=0 (no poll command; unsolicited frame) */
 616         msg->xid_info[0] = 0x81;        /* XID format identifier */
 617         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 618         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 619
 620         skb->dev = sta->sdata->dev;
 621         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 622         memset(skb->cb, 0, sizeof(skb->cb));
 623         netif_rx(skb);
 624 }
 625
 626 static void sta_apply_parameters(struct ieee80211_local *local,
 627                                  struct sta_info *sta,
 628                                  struct station_parameters *params)
 629 {
 630         u32 rates;
 631         int i, j;
 632         struct ieee80211_supported_band *sband;
 633         struct ieee80211_sub_if_data *sdata = sta->sdata;
 634         u32 mask, set;
 635
 636         sband = local->hw.wiphy->bands[local->oper_channel->band];
 637
 638         spin_lock_bh(&sta->lock);
 639         mask = params->sta_flags_mask;
 640         set = params->sta_flags_set;
 641
 642         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 643                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 644                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 645                         sta->flags |= WLAN_STA_AUTHORIZED;
 646         }
 647
 648         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 649                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 650                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 651                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 652         }
 653
 654         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 655                 sta->flags &= ~WLAN_STA_WME;
 656                 if (set & BIT(NL80211_STA_FLAG_WME))
 657                         sta->flags |= WLAN_STA_WME;
 658         }
 659
 660         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 661                 sta->flags &= ~WLAN_STA_MFP;
 662                 if (set & BIT(NL80211_STA_FLAG_MFP))
 663                         sta->flags |= WLAN_STA_MFP;
 664         }
 665         spin_unlock_bh(&sta->lock);
 666
 667         /*
 668          * cfg80211 validates this (1-2007) and allows setting the AID
 669          * only when creating a new station entry
 670          */
 671         if (params->aid)
 672                 sta->sta.aid = params->aid;
 673
 674         /*
 675          * FIXME: updating the following information is racy when this
 676          *        function is called from ieee80211_change_station().
 677          *        However, all this information should be static so
 678          *        maybe we should just reject attemps to change it.
 679          */
 680
 681         if (params->listen_interval >= 0)
 682                 sta->listen_interval = params->listen_interval;
 683
 684         if (params->supported_rates) {
 685                 rates = 0;
 686
 687                 for (i = 0; i < params->supported_rates_len; i++) {
 688                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 689                         for (j = 0; j < sband->n_bitrates; j++) {
 690                                 if (sband->bitrates[j].bitrate == rate)
 691                                         rates |= BIT(j);
 692                         }
 693                 }
 694                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 695         }
 696
 697         if (params->ht_capa)
 698                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 699                                                   params->ht_capa,
 700                                                   &sta->sta.ht_cap);
 701
 702         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 703                 switch (params->plink_action) {
 704                 case PLINK_ACTION_OPEN:
 705                         mesh_plink_open(sta);
 706                         break;
 707                 case PLINK_ACTION_BLOCK:
 708                         mesh_plink_block(sta);
 709                         break;
 710                 }
 711         }
 712 }
 713
 714 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 715                                  u8 *mac, struct station_parameters *params)
 716 {
 717         struct ieee80211_local *local = wiphy_priv(wiphy);
 718         struct sta_info *sta;
 719         struct ieee80211_sub_if_data *sdata;
 720         int err;
 721         int layer2_update;
 722
 723         if (params->vlan) {
 724                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 725
 726                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 727                     sdata->vif.type != NL80211_IFTYPE_AP)
 728                         return -EINVAL;
 729         } else
 730                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 731
 732         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
 733                 return -EINVAL;
 734
 735         if (is_multicast_ether_addr(mac))
 736                 return -EINVAL;
 737
 738         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 739         if (!sta)
 740                 return -ENOMEM;
 741
 742         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 743
 744         sta_apply_parameters(local, sta, params);
 745
 746         rate_control_rate_init(sta);
 747
 748         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 749                 sdata->vif.type == NL80211_IFTYPE_AP;
 750
 751         rcu_read_lock();
 752
 753         err = sta_info_insert(sta);
 754         if (err) {
 755                 rcu_read_unlock();
 756                 return err;
 757         }
 758
 759         if (layer2_update)
 760                 ieee80211_send_layer2_update(sta);
 761
 762         rcu_read_unlock();
 763
 764         return 0;
 765 }
 766
 767 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 768                                  u8 *mac)
 769 {
 770         struct ieee80211_local *local = wiphy_priv(wiphy);
 771         struct ieee80211_sub_if_data *sdata;
 772         struct sta_info *sta;
 773
 774         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 775
 776         if (mac) {
 777                 rcu_read_lock();
 778
 779                 sta = sta_info_get(sdata, mac);
 780                 if (!sta) {
 781                         rcu_read_unlock();
 782                         return -ENOENT;
 783                 }
 784
 785                 sta_info_unlink(&sta);
 786                 rcu_read_unlock();
 787
 788                 sta_info_destroy(sta);
 789         } else
 790                 sta_info_flush(local, sdata);
 791
 792         return 0;
 793 }
 794
 795 static int ieee80211_change_station(struct wiphy *wiphy,
 796                                     struct net_device *dev,
 797                                     u8 *mac,
 798                                     struct station_parameters *params)
 799 {
 800         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 801         struct ieee80211_local *local = wiphy_priv(wiphy);
 802         struct sta_info *sta;
 803         struct ieee80211_sub_if_data *vlansdata;
 804
 805         rcu_read_lock();
 806
 807         sta = sta_info_get(sdata, mac);
 808         if (!sta) {
 809                 rcu_read_unlock();
 810                 return -ENOENT;
 811         }
 812
 813         if (params->vlan && params->vlan != sta->sdata->dev) {
 814                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 815
 816                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 817                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 818                         rcu_read_unlock();
 819                         return -EINVAL;
 820                 }
 821
 822                 if (params->vlan->ieee80211_ptr->use_4addr) {
 823                         if (vlansdata->u.vlan.sta) {
 824                                 rcu_read_unlock();
 825                                 return -EBUSY;
 826                         }
 827
 828                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 829                 }
 830
 831                 sta->sdata = vlansdata;
 832                 ieee80211_send_layer2_update(sta);
 833         }
 834
 835         sta_apply_parameters(local, sta, params);
 836
 837         rcu_read_unlock();
 838
 839         return 0;
 840 }
 841
 842 #ifdef CONFIG_MAC80211_MESH
 843 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 844                                  u8 *dst, u8 *next_hop)
 845 {
 846         struct ieee80211_sub_if_data *sdata;
 847         struct mesh_path *mpath;
 848         struct sta_info *sta;
 849         int err;
 850
 851         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 852
 853         rcu_read_lock();
 854         sta = sta_info_get(sdata, next_hop);
 855         if (!sta) {
 856                 rcu_read_unlock();
 857                 return -ENOENT;
 858         }
 859
 860         err = mesh_path_add(dst, sdata);
 861         if (err) {
 862                 rcu_read_unlock();
 863                 return err;
 864         }
 865
 866         mpath = mesh_path_lookup(dst, sdata);
 867         if (!mpath) {
 868                 rcu_read_unlock();
 869                 return -ENXIO;
 870         }
 871         mesh_path_fix_nexthop(mpath, sta);
 872
 873         rcu_read_unlock();
 874         return 0;
 875 }
 876
 877 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 878                                  u8 *dst)
 879 {
 880         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 881
 882         if (dst)
 883                 return mesh_path_del(dst, sdata);
 884
 885         mesh_path_flush(sdata);
 886         return 0;
 887 }
 888
 889 static int ieee80211_change_mpath(struct wiphy *wiphy,
 890                                     struct net_device *dev,
 891                                     u8 *dst, u8 *next_hop)
 892 {
 893         struct ieee80211_sub_if_data *sdata;
 894         struct mesh_path *mpath;
 895         struct sta_info *sta;
 896
 897         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 898
 899         rcu_read_lock();
 900
 901         sta = sta_info_get(sdata, next_hop);
 902         if (!sta) {
 903                 rcu_read_unlock();
 904                 return -ENOENT;
 905         }
 906
 907         mpath = mesh_path_lookup(dst, sdata);
 908         if (!mpath) {
 909                 rcu_read_unlock();
 910                 return -ENOENT;
 911         }
 912
 913         mesh_path_fix_nexthop(mpath, sta);
 914
 915         rcu_read_unlock();
 916         return 0;
 917 }
 918
 919 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 920                             struct mpath_info *pinfo)
 921 {
 922         if (mpath->next_hop)
 923                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 924         else
 925                 memset(next_hop, 0, ETH_ALEN);
 926
 927         pinfo->generation = mesh_paths_generation;
 928
 929         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 930                         MPATH_INFO_SN |
 931                         MPATH_INFO_METRIC |
 932                         MPATH_INFO_EXPTIME |
 933                         MPATH_INFO_DISCOVERY_TIMEOUT |
 934                         MPATH_INFO_DISCOVERY_RETRIES |
 935                         MPATH_INFO_FLAGS;
 936
 937         pinfo->frame_qlen = mpath->frame_queue.qlen;
 938         pinfo->sn = mpath->sn;
 939         pinfo->metric = mpath->metric;
 940         if (time_before(jiffies, mpath->exp_time))
 941                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 942         pinfo->discovery_timeout =
 943                         jiffies_to_msecs(mpath->discovery_timeout);
 944         pinfo->discovery_retries = mpath->discovery_retries;
 945         pinfo->flags = 0;
 946         if (mpath->flags & MESH_PATH_ACTIVE)
 947                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 948         if (mpath->flags & MESH_PATH_RESOLVING)
 949                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 950         if (mpath->flags & MESH_PATH_SN_VALID)
 951                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 952         if (mpath->flags & MESH_PATH_FIXED)
 953                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 954         if (mpath->flags & MESH_PATH_RESOLVING)
 955                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 956
 957         pinfo->flags = mpath->flags;
 958 }
 959
 960 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 961                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 962
 963 {
 964         struct ieee80211_sub_if_data *sdata;
 965         struct mesh_path *mpath;
 966
 967         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 968
 969         rcu_read_lock();
 970         mpath = mesh_path_lookup(dst, sdata);
 971         if (!mpath) {
 972                 rcu_read_unlock();
 973                 return -ENOENT;
 974         }
 975         memcpy(dst, mpath->dst, ETH_ALEN);
 976         mpath_set_pinfo(mpath, next_hop, pinfo);
 977         rcu_read_unlock();
 978         return 0;
 979 }
 980
 981 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 982                                  int idx, u8 *dst, u8 *next_hop,
 983                                  struct mpath_info *pinfo)
 984 {
 985         struct ieee80211_sub_if_data *sdata;
 986         struct mesh_path *mpath;
 987
 988         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 989
 990         rcu_read_lock();
 991         mpath = mesh_path_lookup_by_idx(idx, sdata);
 992         if (!mpath) {
 993                 rcu_read_unlock();
 994                 return -ENOENT;
 995         }
 996         memcpy(dst, mpath->dst, ETH_ALEN);
 997         mpath_set_pinfo(mpath, next_hop, pinfo);
 998         rcu_read_unlock();
 999         return 0;
1000 }
1001
1002 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1003                                 struct net_device *dev,
1004                                 struct mesh_config *conf)
1005 {
1006         struct ieee80211_sub_if_data *sdata;
1007         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1008
1009         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1010         return 0;
1011 }
1012
1013 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1014 {
1015         return (mask >> (parm-1)) & 0x1;
1016 }
1017
1018 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1019                                 struct net_device *dev,
1020                                 const struct mesh_config *nconf, u32 mask)
1021 {
1022         struct mesh_config *conf;
1023         struct ieee80211_sub_if_data *sdata;
1024         struct ieee80211_if_mesh *ifmsh;
1025
1026         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1027         ifmsh = &sdata->u.mesh;
1028
1029         /* Set the config options which we are interested in setting */
1030         conf = &(sdata->u.mesh.mshcfg);
1031         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1032                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1033         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1034                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1035         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1036                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1037         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1038                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1039         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1040                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1041         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1042                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1043         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1044                 conf->auto_open_plinks = nconf->auto_open_plinks;
1045         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1046                 conf->dot11MeshHWMPmaxPREQretries =
1047                         nconf->dot11MeshHWMPmaxPREQretries;
1048         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1049                 conf->path_refresh_time = nconf->path_refresh_time;
1050         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1051                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1052         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1053                 conf->dot11MeshHWMPactivePathTimeout =
1054                         nconf->dot11MeshHWMPactivePathTimeout;
1055         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1056                 conf->dot11MeshHWMPpreqMinInterval =
1057                         nconf->dot11MeshHWMPpreqMinInterval;
1058         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1059                            mask))
1060                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1061                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1062         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1063                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1064                 ieee80211_mesh_root_setup(ifmsh);
1065         }
1066         return 0;
1067 }
1068
1069 #endif
1070
1071 static int ieee80211_change_bss(struct wiphy *wiphy,
1072                                 struct net_device *dev,
1073                                 struct bss_parameters *params)
1074 {
1075         struct ieee80211_sub_if_data *sdata;
1076         u32 changed = 0;
1077
1078         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1079
1080         if (params->use_cts_prot >= 0) {
1081                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1082                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1083         }
1084         if (params->use_short_preamble >= 0) {
1085                 sdata->vif.bss_conf.use_short_preamble =
1086                         params->use_short_preamble;
1087                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1088         }
1089         if (params->use_short_slot_time >= 0) {
1090                 sdata->vif.bss_conf.use_short_slot =
1091                         params->use_short_slot_time;
1092                 changed |= BSS_CHANGED_ERP_SLOT;
1093         }
1094
1095         if (params->basic_rates) {
1096                 int i, j;
1097                 u32 rates = 0;
1098                 struct ieee80211_local *local = wiphy_priv(wiphy);
1099                 struct ieee80211_supported_band *sband =
1100                         wiphy->bands[local->oper_channel->band];
1101
1102                 for (i = 0; i < params->basic_rates_len; i++) {
1103                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1104                         for (j = 0; j < sband->n_bitrates; j++) {
1105                                 if (sband->bitrates[j].bitrate == rate)
1106                                         rates |= BIT(j);
1107                         }
1108                 }
1109                 sdata->vif.bss_conf.basic_rates = rates;
1110                 changed |= BSS_CHANGED_BASIC_RATES;
1111         }
1112
1113         ieee80211_bss_info_change_notify(sdata, changed);
1114
1115         return 0;
1116 }
1117
1118 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1119                                     struct ieee80211_txq_params *params)
1120 {
1121         struct ieee80211_local *local = wiphy_priv(wiphy);
1122         struct ieee80211_tx_queue_params p;
1123
1124         if (!local->ops->conf_tx)
1125                 return -EOPNOTSUPP;
1126
1127         memset(&p, 0, sizeof(p));
1128         p.aifs = params->aifs;
1129         p.cw_max = params->cwmax;
1130         p.cw_min = params->cwmin;
1131         p.txop = params->txop;
1132         if (drv_conf_tx(local, params->queue, &p)) {
1133                 printk(KERN_DEBUG "%s: failed to set TX queue "
1134                        "parameters for queue %d\n",
1135                        wiphy_name(local->hw.wiphy), params->queue);
1136                 return -EINVAL;
1137         }
1138
1139         return 0;
1140 }
1141
1142 static int ieee80211_set_channel(struct wiphy *wiphy,
1143                                  struct ieee80211_channel *chan,
1144                                  enum nl80211_channel_type channel_type)
1145 {
1146         struct ieee80211_local *local = wiphy_priv(wiphy);
1147
1148         local->oper_channel = chan;
1149         local->oper_channel_type = channel_type;
1150
1151         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1152 }
1153
1154 #ifdef CONFIG_PM
1155 static int ieee80211_suspend(struct wiphy *wiphy)
1156 {
1157         return __ieee80211_suspend(wiphy_priv(wiphy));
1158 }
1159
1160 static int ieee80211_resume(struct wiphy *wiphy)
1161 {
1162         return __ieee80211_resume(wiphy_priv(wiphy));
1163 }
1164 #else
1165 #define ieee80211_suspend NULL
1166 #define ieee80211_resume NULL
1167 #endif
1168
1169 static int ieee80211_scan(struct wiphy *wiphy,
1170                           struct net_device *dev,
1171                           struct cfg80211_scan_request *req)
1172 {
1173         struct ieee80211_sub_if_data *sdata;
1174
1175         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1176
1177         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1178             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1179             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1180             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1181                 return -EOPNOTSUPP;
1182
1183         return ieee80211_request_scan(sdata, req);
1184 }
1185
1186 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1187                           struct cfg80211_auth_request *req)
1188 {
1189         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1190 }
1191
1192 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1193                            struct cfg80211_assoc_request *req)
1194 {
1195         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1196 }
1197
1198 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1199                             struct cfg80211_deauth_request *req,
1200                             void *cookie)
1201 {
1202         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1203                                     req, cookie);
1204 }
1205
1206 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1207                               struct cfg80211_disassoc_request *req,
1208                               void *cookie)
1209 {
1210         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1211                                       req, cookie);
1212 }
1213
1214 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1215                                struct cfg80211_ibss_params *params)
1216 {
1217         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1218
1219         return ieee80211_ibss_join(sdata, params);
1220 }
1221
1222 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1223 {
1224         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1225
1226         return ieee80211_ibss_leave(sdata);
1227 }
1228
1229 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1230 {
1231         struct ieee80211_local *local = wiphy_priv(wiphy);
1232         int err;
1233
1234         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1235                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1236
1237                 if (err)
1238                         return err;
1239         }
1240
1241         if (changed & WIPHY_PARAM_RETRY_SHORT)
1242                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1243         if (changed & WIPHY_PARAM_RETRY_LONG)
1244                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1245         if (changed &
1246             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1247                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1248
1249         return 0;
1250 }
1251
1252 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1253                                   enum tx_power_setting type, int dbm)
1254 {
1255         struct ieee80211_local *local = wiphy_priv(wiphy);
1256         struct ieee80211_channel *chan = local->hw.conf.channel;
1257         u32 changes = 0;
1258
1259         switch (type) {
1260         case TX_POWER_AUTOMATIC:
1261                 local->user_power_level = -1;
1262                 break;
1263         case TX_POWER_LIMITED:
1264                 if (dbm < 0)
1265                         return -EINVAL;
1266                 local->user_power_level = dbm;
1267                 break;
1268         case TX_POWER_FIXED:
1269                 if (dbm < 0)
1270                         return -EINVAL;
1271                 /* TODO: move to cfg80211 when it knows the channel */
1272                 if (dbm > chan->max_power)
1273                         return -EINVAL;
1274                 local->user_power_level = dbm;
1275                 break;
1276         }
1277
1278         ieee80211_hw_config(local, changes);
1279
1280         return 0;
1281 }
1282
1283 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1284 {
1285         struct ieee80211_local *local = wiphy_priv(wiphy);
1286
1287         *dbm = local->hw.conf.power_level;
1288
1289         return 0;
1290 }
1291
1292 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1293                                   u8 *addr)
1294 {
1295         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1296
1297         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1298
1299         return 0;
1300 }
1301
1302 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1303 {
1304         struct ieee80211_local *local = wiphy_priv(wiphy);
1305
1306         drv_rfkill_poll(local);
1307 }
1308
1309 #ifdef CONFIG_NL80211_TESTMODE
1310 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1311 {
1312         struct ieee80211_local *local = wiphy_priv(wiphy);
1313
1314         if (!local->ops->testmode_cmd)
1315                 return -EOPNOTSUPP;
1316
1317         return local->ops->testmode_cmd(&local->hw, data, len);
1318 }
1319 #endif
1320
1321 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1322                              enum ieee80211_smps_mode smps_mode)
1323 {
1324         const u8 *ap;
1325         enum ieee80211_smps_mode old_req;
1326         int err;
1327
1328         old_req = sdata->u.mgd.req_smps;
1329         sdata->u.mgd.req_smps = smps_mode;
1330
1331         if (old_req == smps_mode &&
1332             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1333                 return 0;
1334
1335         /*
1336          * If not associated, or current association is not an HT
1337          * association, there's no need to send an action frame.
1338          */
1339         if (!sdata->u.mgd.associated ||
1340             sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
1341                 mutex_lock(&sdata->local->iflist_mtx);
1342                 ieee80211_recalc_smps(sdata->local, sdata);
1343                 mutex_unlock(&sdata->local->iflist_mtx);
1344                 return 0;
1345         }
1346
1347         ap = sdata->u.mgd.associated->cbss.bssid;
1348
1349         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1350                 if (sdata->u.mgd.powersave)
1351                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1352                 else
1353                         smps_mode = IEEE80211_SMPS_OFF;
1354         }
1355
1356         /* send SM PS frame to AP */
1357         err = ieee80211_send_smps_action(sdata, smps_mode,
1358                                          ap, ap);
1359         if (err)
1360                 sdata->u.mgd.req_smps = old_req;
1361
1362         return err;
1363 }
1364
1365 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1366                                     bool enabled, int timeout)
1367 {
1368         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1369         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1370         struct ieee80211_conf *conf = &local->hw.conf;
1371
1372         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1373                 return -EOPNOTSUPP;
1374
1375         if (enabled == sdata->u.mgd.powersave &&
1376             timeout == conf->dynamic_ps_timeout)
1377                 return 0;
1378
1379         sdata->u.mgd.powersave = enabled;
1380         conf->dynamic_ps_timeout = timeout;
1381
1382         /* no change, but if automatic follow powersave */
1383         mutex_lock(&sdata->u.mgd.mtx);
1384         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1385         mutex_unlock(&sdata->u.mgd.mtx);
1386
1387         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1388                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1389
1390         ieee80211_recalc_ps(local, -1);
1391
1392         return 0;
1393 }
1394
1395 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1396                                       struct net_device *dev,
1397                                       const u8 *addr,
1398                                       const struct cfg80211_bitrate_mask *mask)
1399 {
1400         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1401         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1402         int i;
1403         u32 target_rate;
1404         struct ieee80211_supported_band *sband;
1405
1406         /*
1407          * This _could_ be supported by providing a hook for
1408          * drivers for this function, but at this point it
1409          * doesn't seem worth bothering.
1410          */
1411         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1412                 return -EOPNOTSUPP;
1413
1414         sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
1415
1416         /*
1417          * target_rate = -1, rate->fixed = 0 means auto only, so use all rates
1418          * target_rate = X, rate->fixed = 1 means only rate X
1419          * target_rate = X, rate->fixed = 0 means all rates <= X
1420          */
1421         sdata->max_ratectrl_rateidx = -1;
1422         sdata->force_unicast_rateidx = -1;
1423
1424         if (mask->fixed)
1425                 target_rate = mask->fixed / 100;
1426         else if (mask->maxrate)
1427                 target_rate = mask->maxrate / 100;
1428         else
1429                 return 0;
1430
1431         for (i = 0; i< sband->n_bitrates; i++) {
1432                 if (target_rate != sband->bitrates[i].bitrate)
1433                         continue;
1434
1435                 /* requested bitrate found */
1436                 sdata->max_ratectrl_rateidx = i;
1437                 if (mask->fixed)
1438                         sdata->force_unicast_rateidx = i;
1439                 return 0;
1440         }
1441
1442         return -EINVAL;
1443 }
1444
1445 struct cfg80211_ops mac80211_config_ops = {
1446         .add_virtual_intf = ieee80211_add_iface,
1447         .del_virtual_intf = ieee80211_del_iface,
1448         .change_virtual_intf = ieee80211_change_iface,
1449         .add_key = ieee80211_add_key,
1450         .del_key = ieee80211_del_key,
1451         .get_key = ieee80211_get_key,
1452         .set_default_key = ieee80211_config_default_key,
1453         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1454         .add_beacon = ieee80211_add_beacon,
1455         .set_beacon = ieee80211_set_beacon,
1456         .del_beacon = ieee80211_del_beacon,
1457         .add_station = ieee80211_add_station,
1458         .del_station = ieee80211_del_station,
1459         .change_station = ieee80211_change_station,
1460         .get_station = ieee80211_get_station,
1461         .dump_station = ieee80211_dump_station,
1462 #ifdef CONFIG_MAC80211_MESH
1463         .add_mpath = ieee80211_add_mpath,
1464         .del_mpath = ieee80211_del_mpath,
1465         .change_mpath = ieee80211_change_mpath,
1466         .get_mpath = ieee80211_get_mpath,
1467         .dump_mpath = ieee80211_dump_mpath,
1468         .set_mesh_params = ieee80211_set_mesh_params,
1469         .get_mesh_params = ieee80211_get_mesh_params,
1470 #endif
1471         .change_bss = ieee80211_change_bss,
1472         .set_txq_params = ieee80211_set_txq_params,
1473         .set_channel = ieee80211_set_channel,
1474         .suspend = ieee80211_suspend,
1475         .resume = ieee80211_resume,
1476         .scan = ieee80211_scan,
1477         .auth = ieee80211_auth,
1478         .assoc = ieee80211_assoc,
1479         .deauth = ieee80211_deauth,
1480         .disassoc = ieee80211_disassoc,
1481         .join_ibss = ieee80211_join_ibss,
1482         .leave_ibss = ieee80211_leave_ibss,
1483         .set_wiphy_params = ieee80211_set_wiphy_params,
1484         .set_tx_power = ieee80211_set_tx_power,
1485         .get_tx_power = ieee80211_get_tx_power,
1486         .set_wds_peer = ieee80211_set_wds_peer,
1487         .rfkill_poll = ieee80211_rfkill_poll,
1488         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1489         .set_power_mgmt = ieee80211_set_power_mgmt,
1490         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1491 };