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             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 359                 sinfo->filled |= STATION_INFO_SIGNAL;
 360                 sinfo->signal = (s8)sta->last_signal;
 361         }
 362
 363         sinfo->txrate.flags = 0;
 364         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 365                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 366         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 367                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 368         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 369                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 370
 371         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 372                 struct ieee80211_supported_band *sband;
 373                 sband = sta->local->hw.wiphy->bands[
 374                                 sta->local->hw.conf.channel->band];
 375                 sinfo->txrate.legacy =
 376                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 377         } else
 378                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 379
 380         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 381 #ifdef CONFIG_MAC80211_MESH
 382                 sinfo->filled |= STATION_INFO_LLID |
 383                                  STATION_INFO_PLID |
 384                                  STATION_INFO_PLINK_STATE;
 385
 386                 sinfo->llid = le16_to_cpu(sta->llid);
 387                 sinfo->plid = le16_to_cpu(sta->plid);
 388                 sinfo->plink_state = sta->plink_state;
 389 #endif
 390         }
 391 }
 392
 393
 394 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 395                                  int idx, u8 *mac, struct station_info *sinfo)
 396 {
 397         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 398         struct sta_info *sta;
 399         int ret = -ENOENT;
 400
 401         rcu_read_lock();
 402
 403         sta = sta_info_get_by_idx(sdata, idx);
 404         if (sta) {
 405                 ret = 0;
 406                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 407                 sta_set_sinfo(sta, sinfo);
 408         }
 409
 410         rcu_read_unlock();
 411
 412         return ret;
 413 }
 414
 415 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 416                                  u8 *mac, struct station_info *sinfo)
 417 {
 418         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 419         struct sta_info *sta;
 420         int ret = -ENOENT;
 421
 422         rcu_read_lock();
 423
 424         /* XXX: verify sta->dev == dev */
 425
 426         sta = sta_info_get(local, mac);
 427         if (sta) {
 428                 ret = 0;
 429                 sta_set_sinfo(sta, sinfo);
 430         }
 431
 432         rcu_read_unlock();
 433
 434         return ret;
 435 }
 436
 437 /*
 438  * This handles both adding a beacon and setting new beacon info
 439  */
 440 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 441                                    struct beacon_parameters *params)
 442 {
 443         struct beacon_data *new, *old;
 444         int new_head_len, new_tail_len;
 445         int size;
 446         int err = -EINVAL;
 447
 448         old = sdata->u.ap.beacon;
 449
 450         /* head must not be zero-length */
 451         if (params->head && !params->head_len)
 452                 return -EINVAL;
 453
 454         /*
 455          * This is a kludge. beacon interval should really be part
 456          * of the beacon information.
 457          */
 458         if (params->interval &&
 459             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 460                 sdata->vif.bss_conf.beacon_int = params->interval;
 461                 ieee80211_bss_info_change_notify(sdata,
 462                                                  BSS_CHANGED_BEACON_INT);
 463         }
 464
 465         /* Need to have a beacon head if we don't have one yet */
 466         if (!params->head && !old)
 467                 return err;
 468
 469         /* sorry, no way to start beaconing without dtim period */
 470         if (!params->dtim_period && !old)
 471                 return err;
 472
 473         /* new or old head? */
 474         if (params->head)
 475                 new_head_len = params->head_len;
 476         else
 477                 new_head_len = old->head_len;
 478
 479         /* new or old tail? */
 480         if (params->tail || !old)
 481                 /* params->tail_len will be zero for !params->tail */
 482                 new_tail_len = params->tail_len;
 483         else
 484                 new_tail_len = old->tail_len;
 485
 486         size = sizeof(*new) + new_head_len + new_tail_len;
 487
 488         new = kzalloc(size, GFP_KERNEL);
 489         if (!new)
 490                 return -ENOMEM;
 491
 492         /* start filling the new info now */
 493
 494         /* new or old dtim period? */
 495         if (params->dtim_period)
 496                 new->dtim_period = params->dtim_period;
 497         else
 498                 new->dtim_period = old->dtim_period;
 499
 500         /*
 501          * pointers go into the block we allocated,
 502          * memory is | beacon_data | head | tail |
 503          */
 504         new->head = ((u8 *) new) + sizeof(*new);
 505         new->tail = new->head + new_head_len;
 506         new->head_len = new_head_len;
 507         new->tail_len = new_tail_len;
 508
 509         /* copy in head */
 510         if (params->head)
 511                 memcpy(new->head, params->head, new_head_len);
 512         else
 513                 memcpy(new->head, old->head, new_head_len);
 514
 515         /* copy in optional tail */
 516         if (params->tail)
 517                 memcpy(new->tail, params->tail, new_tail_len);
 518         else
 519                 if (old)
 520                         memcpy(new->tail, old->tail, new_tail_len);
 521
 522         rcu_assign_pointer(sdata->u.ap.beacon, new);
 523
 524         synchronize_rcu();
 525
 526         kfree(old);
 527
 528         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 529                                                 BSS_CHANGED_BEACON);
 530         return 0;
 531 }
 532
 533 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 534                                 struct beacon_parameters *params)
 535 {
 536         struct ieee80211_sub_if_data *sdata;
 537         struct beacon_data *old;
 538
 539         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 540
 541         old = sdata->u.ap.beacon;
 542
 543         if (old)
 544                 return -EALREADY;
 545
 546         return ieee80211_config_beacon(sdata, params);
 547 }
 548
 549 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 550                                 struct beacon_parameters *params)
 551 {
 552         struct ieee80211_sub_if_data *sdata;
 553         struct beacon_data *old;
 554
 555         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 556
 557         old = sdata->u.ap.beacon;
 558
 559         if (!old)
 560                 return -ENOENT;
 561
 562         return ieee80211_config_beacon(sdata, params);
 563 }
 564
 565 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 566 {
 567         struct ieee80211_sub_if_data *sdata;
 568         struct beacon_data *old;
 569
 570         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 571
 572         old = sdata->u.ap.beacon;
 573
 574         if (!old)
 575                 return -ENOENT;
 576
 577         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 578         synchronize_rcu();
 579         kfree(old);
 580
 581         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 582         return 0;
 583 }
 584
 585 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 586 struct iapp_layer2_update {
 587         u8 da[ETH_ALEN];        /* broadcast */
 588         u8 sa[ETH_ALEN];        /* STA addr */
 589         __be16 len;             /* 6 */
 590         u8 dsap;                /* 0 */
 591         u8 ssap;                /* 0 */
 592         u8 control;
 593         u8 xid_info[3];
 594 } __attribute__ ((packed));
 595
 596 static void ieee80211_send_layer2_update(struct sta_info *sta)
 597 {
 598         struct iapp_layer2_update *msg;
 599         struct sk_buff *skb;
 600
 601         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 602          * bridge devices */
 603
 604         skb = dev_alloc_skb(sizeof(*msg));
 605         if (!skb)
 606                 return;
 607         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 608
 609         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 610          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 611
 612         memset(msg->da, 0xff, ETH_ALEN);
 613         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 614         msg->len = htons(6);
 615         msg->dsap = 0;
 616         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 617         msg->control = 0xaf;    /* XID response lsb.1111F101.
 618                                  * F=0 (no poll command; unsolicited frame) */
 619         msg->xid_info[0] = 0x81;        /* XID format identifier */
 620         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 621         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 622
 623         skb->dev = sta->sdata->dev;
 624         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 625         memset(skb->cb, 0, sizeof(skb->cb));
 626         netif_rx(skb);
 627 }
 628
 629 static void sta_apply_parameters(struct ieee80211_local *local,
 630                                  struct sta_info *sta,
 631                                  struct station_parameters *params)
 632 {
 633         u32 rates;
 634         int i, j;
 635         struct ieee80211_supported_band *sband;
 636         struct ieee80211_sub_if_data *sdata = sta->sdata;
 637         u32 mask, set;
 638
 639         sband = local->hw.wiphy->bands[local->oper_channel->band];
 640
 641         spin_lock_bh(&sta->lock);
 642         mask = params->sta_flags_mask;
 643         set = params->sta_flags_set;
 644
 645         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 646                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 647                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 648                         sta->flags |= WLAN_STA_AUTHORIZED;
 649         }
 650
 651         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 652                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 653                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 654                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 655         }
 656
 657         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 658                 sta->flags &= ~WLAN_STA_WME;
 659                 if (set & BIT(NL80211_STA_FLAG_WME))
 660                         sta->flags |= WLAN_STA_WME;
 661         }
 662
 663         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 664                 sta->flags &= ~WLAN_STA_MFP;
 665                 if (set & BIT(NL80211_STA_FLAG_MFP))
 666                         sta->flags |= WLAN_STA_MFP;
 667         }
 668         spin_unlock_bh(&sta->lock);
 669
 670         /*
 671          * cfg80211 validates this (1-2007) and allows setting the AID
 672          * only when creating a new station entry
 673          */
 674         if (params->aid)
 675                 sta->sta.aid = params->aid;
 676
 677         /*
 678          * FIXME: updating the following information is racy when this
 679          *        function is called from ieee80211_change_station().
 680          *        However, all this information should be static so
 681          *        maybe we should just reject attemps to change it.
 682          */
 683
 684         if (params->listen_interval >= 0)
 685                 sta->listen_interval = params->listen_interval;
 686
 687         if (params->supported_rates) {
 688                 rates = 0;
 689
 690                 for (i = 0; i < params->supported_rates_len; i++) {
 691                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 692                         for (j = 0; j < sband->n_bitrates; j++) {
 693                                 if (sband->bitrates[j].bitrate == rate)
 694                                         rates |= BIT(j);
 695                         }
 696                 }
 697                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 698         }
 699
 700         if (params->ht_capa)
 701                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 702                                                   params->ht_capa,
 703                                                   &sta->sta.ht_cap);
 704
 705         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 706                 switch (params->plink_action) {
 707                 case PLINK_ACTION_OPEN:
 708                         mesh_plink_open(sta);
 709                         break;
 710                 case PLINK_ACTION_BLOCK:
 711                         mesh_plink_block(sta);
 712                         break;
 713                 }
 714         }
 715 }
 716
 717 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 718                                  u8 *mac, struct station_parameters *params)
 719 {
 720         struct ieee80211_local *local = wiphy_priv(wiphy);
 721         struct sta_info *sta;
 722         struct ieee80211_sub_if_data *sdata;
 723         int err;
 724         int layer2_update;
 725
 726         if (params->vlan) {
 727                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 728
 729                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 730                     sdata->vif.type != NL80211_IFTYPE_AP)
 731                         return -EINVAL;
 732         } else
 733                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 734
 735         if (compare_ether_addr(mac, dev->dev_addr) == 0)
 736                 return -EINVAL;
 737
 738         if (is_multicast_ether_addr(mac))
 739                 return -EINVAL;
 740
 741         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 742         if (!sta)
 743                 return -ENOMEM;
 744
 745         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 746
 747         sta_apply_parameters(local, sta, params);
 748
 749         rate_control_rate_init(sta);
 750
 751         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 752                 sdata->vif.type == NL80211_IFTYPE_AP;
 753
 754         rcu_read_lock();
 755
 756         err = sta_info_insert(sta);
 757         if (err) {
 758                 rcu_read_unlock();
 759                 return err;
 760         }
 761
 762         if (layer2_update)
 763                 ieee80211_send_layer2_update(sta);
 764
 765         rcu_read_unlock();
 766
 767         return 0;
 768 }
 769
 770 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 771                                  u8 *mac)
 772 {
 773         struct ieee80211_local *local = wiphy_priv(wiphy);
 774         struct ieee80211_sub_if_data *sdata;
 775         struct sta_info *sta;
 776
 777         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 778
 779         if (mac) {
 780                 rcu_read_lock();
 781
 782                 /* XXX: get sta belonging to dev */
 783                 sta = sta_info_get(local, mac);
 784                 if (!sta) {
 785                         rcu_read_unlock();
 786                         return -ENOENT;
 787                 }
 788
 789                 sta_info_unlink(&sta);
 790                 rcu_read_unlock();
 791
 792                 sta_info_destroy(sta);
 793         } else
 794                 sta_info_flush(local, sdata);
 795
 796         return 0;
 797 }
 798
 799 static int ieee80211_change_station(struct wiphy *wiphy,
 800                                     struct net_device *dev,
 801                                     u8 *mac,
 802                                     struct station_parameters *params)
 803 {
 804         struct ieee80211_local *local = wiphy_priv(wiphy);
 805         struct sta_info *sta;
 806         struct ieee80211_sub_if_data *vlansdata;
 807
 808         rcu_read_lock();
 809
 810         /* XXX: get sta belonging to dev */
 811         sta = sta_info_get(local, mac);
 812         if (!sta) {
 813                 rcu_read_unlock();
 814                 return -ENOENT;
 815         }
 816
 817         if (params->vlan && params->vlan != sta->sdata->dev) {
 818                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 819
 820                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 821                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 822                         rcu_read_unlock();
 823                         return -EINVAL;
 824                 }
 825
 826                 if (params->vlan->ieee80211_ptr->use_4addr) {
 827                         if (vlansdata->u.vlan.sta) {
 828                                 rcu_read_unlock();
 829                                 return -EBUSY;
 830                         }
 831
 832                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 833                 }
 834
 835                 sta->sdata = vlansdata;
 836                 ieee80211_send_layer2_update(sta);
 837         }
 838
 839         sta_apply_parameters(local, sta, params);
 840
 841         rcu_read_unlock();
 842
 843         return 0;
 844 }
 845
 846 #ifdef CONFIG_MAC80211_MESH
 847 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 848                                  u8 *dst, u8 *next_hop)
 849 {
 850         struct ieee80211_local *local = wiphy_priv(wiphy);
 851         struct ieee80211_sub_if_data *sdata;
 852         struct mesh_path *mpath;
 853         struct sta_info *sta;
 854         int err;
 855
 856         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 857
 858         rcu_read_lock();
 859         sta = sta_info_get(local, next_hop);
 860         if (!sta) {
 861                 rcu_read_unlock();
 862                 return -ENOENT;
 863         }
 864
 865         err = mesh_path_add(dst, sdata);
 866         if (err) {
 867                 rcu_read_unlock();
 868                 return err;
 869         }
 870
 871         mpath = mesh_path_lookup(dst, sdata);
 872         if (!mpath) {
 873                 rcu_read_unlock();
 874                 return -ENXIO;
 875         }
 876         mesh_path_fix_nexthop(mpath, sta);
 877
 878         rcu_read_unlock();
 879         return 0;
 880 }
 881
 882 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 883                                  u8 *dst)
 884 {
 885         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 886
 887         if (dst)
 888                 return mesh_path_del(dst, sdata);
 889
 890         mesh_path_flush(sdata);
 891         return 0;
 892 }
 893
 894 static int ieee80211_change_mpath(struct wiphy *wiphy,
 895                                     struct net_device *dev,
 896                                     u8 *dst, u8 *next_hop)
 897 {
 898         struct ieee80211_local *local = wiphy_priv(wiphy);
 899         struct ieee80211_sub_if_data *sdata;
 900         struct mesh_path *mpath;
 901         struct sta_info *sta;
 902
 903         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 904
 905         rcu_read_lock();
 906
 907         sta = sta_info_get(local, next_hop);
 908         if (!sta) {
 909                 rcu_read_unlock();
 910                 return -ENOENT;
 911         }
 912
 913         mpath = mesh_path_lookup(dst, sdata);
 914         if (!mpath) {
 915                 rcu_read_unlock();
 916                 return -ENOENT;
 917         }
 918
 919         mesh_path_fix_nexthop(mpath, sta);
 920
 921         rcu_read_unlock();
 922         return 0;
 923 }
 924
 925 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 926                             struct mpath_info *pinfo)
 927 {
 928         if (mpath->next_hop)
 929                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 930         else
 931                 memset(next_hop, 0, ETH_ALEN);
 932
 933         pinfo->generation = mesh_paths_generation;
 934
 935         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 936                         MPATH_INFO_SN |
 937                         MPATH_INFO_METRIC |
 938                         MPATH_INFO_EXPTIME |
 939                         MPATH_INFO_DISCOVERY_TIMEOUT |
 940                         MPATH_INFO_DISCOVERY_RETRIES |
 941                         MPATH_INFO_FLAGS;
 942
 943         pinfo->frame_qlen = mpath->frame_queue.qlen;
 944         pinfo->sn = mpath->sn;
 945         pinfo->metric = mpath->metric;
 946         if (time_before(jiffies, mpath->exp_time))
 947                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 948         pinfo->discovery_timeout =
 949                         jiffies_to_msecs(mpath->discovery_timeout);
 950         pinfo->discovery_retries = mpath->discovery_retries;
 951         pinfo->flags = 0;
 952         if (mpath->flags & MESH_PATH_ACTIVE)
 953                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 954         if (mpath->flags & MESH_PATH_RESOLVING)
 955                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 956         if (mpath->flags & MESH_PATH_SN_VALID)
 957                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 958         if (mpath->flags & MESH_PATH_FIXED)
 959                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 960         if (mpath->flags & MESH_PATH_RESOLVING)
 961                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 962
 963         pinfo->flags = mpath->flags;
 964 }
 965
 966 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 967                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 968
 969 {
 970         struct ieee80211_sub_if_data *sdata;
 971         struct mesh_path *mpath;
 972
 973         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 974
 975         rcu_read_lock();
 976         mpath = mesh_path_lookup(dst, sdata);
 977         if (!mpath) {
 978                 rcu_read_unlock();
 979                 return -ENOENT;
 980         }
 981         memcpy(dst, mpath->dst, ETH_ALEN);
 982         mpath_set_pinfo(mpath, next_hop, pinfo);
 983         rcu_read_unlock();
 984         return 0;
 985 }
 986
 987 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 988                                  int idx, u8 *dst, u8 *next_hop,
 989                                  struct mpath_info *pinfo)
 990 {
 991         struct ieee80211_sub_if_data *sdata;
 992         struct mesh_path *mpath;
 993
 994         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 995
 996         rcu_read_lock();
 997         mpath = mesh_path_lookup_by_idx(idx, sdata);
 998         if (!mpath) {
 999                 rcu_read_unlock();
1000                 return -ENOENT;
1001         }
1002         memcpy(dst, mpath->dst, ETH_ALEN);
1003         mpath_set_pinfo(mpath, next_hop, pinfo);
1004         rcu_read_unlock();
1005         return 0;
1006 }
1007
1008 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1009                                 struct net_device *dev,
1010                                 struct mesh_config *conf)
1011 {
1012         struct ieee80211_sub_if_data *sdata;
1013         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1014
1015         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1016         return 0;
1017 }
1018
1019 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1020 {
1021         return (mask >> (parm-1)) & 0x1;
1022 }
1023
1024 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1025                                 struct net_device *dev,
1026                                 const struct mesh_config *nconf, u32 mask)
1027 {
1028         struct mesh_config *conf;
1029         struct ieee80211_sub_if_data *sdata;
1030         struct ieee80211_if_mesh *ifmsh;
1031
1032         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1033         ifmsh = &sdata->u.mesh;
1034
1035         /* Set the config options which we are interested in setting */
1036         conf = &(sdata->u.mesh.mshcfg);
1037         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1038                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1039         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1040                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1041         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1042                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1043         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1044                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1045         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1046                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1047         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1048                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1049         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1050                 conf->auto_open_plinks = nconf->auto_open_plinks;
1051         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1052                 conf->dot11MeshHWMPmaxPREQretries =
1053                         nconf->dot11MeshHWMPmaxPREQretries;
1054         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1055                 conf->path_refresh_time = nconf->path_refresh_time;
1056         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1057                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1058         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1059                 conf->dot11MeshHWMPactivePathTimeout =
1060                         nconf->dot11MeshHWMPactivePathTimeout;
1061         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1062                 conf->dot11MeshHWMPpreqMinInterval =
1063                         nconf->dot11MeshHWMPpreqMinInterval;
1064         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1065                            mask))
1066                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1067                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1068         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1069                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1070                 ieee80211_mesh_root_setup(ifmsh);
1071         }
1072         return 0;
1073 }
1074
1075 #endif
1076
1077 static int ieee80211_change_bss(struct wiphy *wiphy,
1078                                 struct net_device *dev,
1079                                 struct bss_parameters *params)
1080 {
1081         struct ieee80211_sub_if_data *sdata;
1082         u32 changed = 0;
1083
1084         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1085
1086         if (params->use_cts_prot >= 0) {
1087                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1088                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1089         }
1090         if (params->use_short_preamble >= 0) {
1091                 sdata->vif.bss_conf.use_short_preamble =
1092                         params->use_short_preamble;
1093                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1094         }
1095         if (params->use_short_slot_time >= 0) {
1096                 sdata->vif.bss_conf.use_short_slot =
1097                         params->use_short_slot_time;
1098                 changed |= BSS_CHANGED_ERP_SLOT;
1099         }
1100
1101         if (params->basic_rates) {
1102                 int i, j;
1103                 u32 rates = 0;
1104                 struct ieee80211_local *local = wiphy_priv(wiphy);
1105                 struct ieee80211_supported_band *sband =
1106                         wiphy->bands[local->oper_channel->band];
1107
1108                 for (i = 0; i < params->basic_rates_len; i++) {
1109                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1110                         for (j = 0; j < sband->n_bitrates; j++) {
1111                                 if (sband->bitrates[j].bitrate == rate)
1112                                         rates |= BIT(j);
1113                         }
1114                 }
1115                 sdata->vif.bss_conf.basic_rates = rates;
1116                 changed |= BSS_CHANGED_BASIC_RATES;
1117         }
1118
1119         ieee80211_bss_info_change_notify(sdata, changed);
1120
1121         return 0;
1122 }
1123
1124 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1125                                     struct ieee80211_txq_params *params)
1126 {
1127         struct ieee80211_local *local = wiphy_priv(wiphy);
1128         struct ieee80211_tx_queue_params p;
1129
1130         if (!local->ops->conf_tx)
1131                 return -EOPNOTSUPP;
1132
1133         memset(&p, 0, sizeof(p));
1134         p.aifs = params->aifs;
1135         p.cw_max = params->cwmax;
1136         p.cw_min = params->cwmin;
1137         p.txop = params->txop;
1138         if (drv_conf_tx(local, params->queue, &p)) {
1139                 printk(KERN_DEBUG "%s: failed to set TX queue "
1140                        "parameters for queue %d\n",
1141                        wiphy_name(local->hw.wiphy), params->queue);
1142                 return -EINVAL;
1143         }
1144
1145         return 0;
1146 }
1147
1148 static int ieee80211_set_channel(struct wiphy *wiphy,
1149                                  struct ieee80211_channel *chan,
1150                                  enum nl80211_channel_type channel_type)
1151 {
1152         struct ieee80211_local *local = wiphy_priv(wiphy);
1153
1154         local->oper_channel = chan;
1155         local->oper_channel_type = channel_type;
1156
1157         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1158 }
1159
1160 #ifdef CONFIG_PM
1161 static int ieee80211_suspend(struct wiphy *wiphy)
1162 {
1163         return __ieee80211_suspend(wiphy_priv(wiphy));
1164 }
1165
1166 static int ieee80211_resume(struct wiphy *wiphy)
1167 {
1168         return __ieee80211_resume(wiphy_priv(wiphy));
1169 }
1170 #else
1171 #define ieee80211_suspend NULL
1172 #define ieee80211_resume NULL
1173 #endif
1174
1175 static int ieee80211_scan(struct wiphy *wiphy,
1176                           struct net_device *dev,
1177                           struct cfg80211_scan_request *req)
1178 {
1179         struct ieee80211_sub_if_data *sdata;
1180
1181         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1182
1183         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1184             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1185             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1186             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1187                 return -EOPNOTSUPP;
1188
1189         return ieee80211_request_scan(sdata, req);
1190 }
1191
1192 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1193                           struct cfg80211_auth_request *req)
1194 {
1195         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1196 }
1197
1198 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1199                            struct cfg80211_assoc_request *req)
1200 {
1201         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1202 }
1203
1204 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1205                             struct cfg80211_deauth_request *req,
1206                             void *cookie)
1207 {
1208         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1209                                     req, cookie);
1210 }
1211
1212 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1213                               struct cfg80211_disassoc_request *req,
1214                               void *cookie)
1215 {
1216         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1217                                       req, cookie);
1218 }
1219
1220 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1221                                struct cfg80211_ibss_params *params)
1222 {
1223         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1224
1225         return ieee80211_ibss_join(sdata, params);
1226 }
1227
1228 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1229 {
1230         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1231
1232         return ieee80211_ibss_leave(sdata);
1233 }
1234
1235 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1236 {
1237         struct ieee80211_local *local = wiphy_priv(wiphy);
1238         int err;
1239
1240         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1241                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1242
1243                 if (err)
1244                         return err;
1245         }
1246
1247         if (changed & WIPHY_PARAM_RETRY_SHORT)
1248                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1249         if (changed & WIPHY_PARAM_RETRY_LONG)
1250                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1251         if (changed &
1252             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1253                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1254
1255         return 0;
1256 }
1257
1258 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1259                                   enum tx_power_setting type, int dbm)
1260 {
1261         struct ieee80211_local *local = wiphy_priv(wiphy);
1262         struct ieee80211_channel *chan = local->hw.conf.channel;
1263         u32 changes = 0;
1264
1265         switch (type) {
1266         case TX_POWER_AUTOMATIC:
1267                 local->user_power_level = -1;
1268                 break;
1269         case TX_POWER_LIMITED:
1270                 if (dbm < 0)
1271                         return -EINVAL;
1272                 local->user_power_level = dbm;
1273                 break;
1274         case TX_POWER_FIXED:
1275                 if (dbm < 0)
1276                         return -EINVAL;
1277                 /* TODO: move to cfg80211 when it knows the channel */
1278                 if (dbm > chan->max_power)
1279                         return -EINVAL;
1280                 local->user_power_level = dbm;
1281                 break;
1282         }
1283
1284         ieee80211_hw_config(local, changes);
1285
1286         return 0;
1287 }
1288
1289 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1290 {
1291         struct ieee80211_local *local = wiphy_priv(wiphy);
1292
1293         *dbm = local->hw.conf.power_level;
1294
1295         return 0;
1296 }
1297
1298 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1299                                   u8 *addr)
1300 {
1301         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1302
1303         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1304
1305         return 0;
1306 }
1307
1308 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1309 {
1310         struct ieee80211_local *local = wiphy_priv(wiphy);
1311
1312         drv_rfkill_poll(local);
1313 }
1314
1315 #ifdef CONFIG_NL80211_TESTMODE
1316 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1317 {
1318         struct ieee80211_local *local = wiphy_priv(wiphy);
1319
1320         if (!local->ops->testmode_cmd)
1321                 return -EOPNOTSUPP;
1322
1323         return local->ops->testmode_cmd(&local->hw, data, len);
1324 }
1325 #endif
1326
1327 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1328                                     bool enabled, int timeout)
1329 {
1330         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1331         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1332         struct ieee80211_conf *conf = &local->hw.conf;
1333
1334         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1335                 return -EOPNOTSUPP;
1336
1337         if (enabled == sdata->u.mgd.powersave &&
1338             timeout == conf->dynamic_ps_timeout)
1339                 return 0;
1340
1341         sdata->u.mgd.powersave = enabled;
1342         conf->dynamic_ps_timeout = timeout;
1343
1344         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1345                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1346
1347         ieee80211_recalc_ps(local, -1);
1348
1349         return 0;
1350 }
1351
1352 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1353                                       struct net_device *dev,
1354                                       const u8 *addr,
1355                                       const struct cfg80211_bitrate_mask *mask)
1356 {
1357         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1358         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1359         int i, err = -EINVAL;
1360         u32 target_rate;
1361         struct ieee80211_supported_band *sband;
1362
1363         sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
1364
1365         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
1366          * target_rate = X, rate->fixed = 1 means only rate X
1367          * target_rate = X, rate->fixed = 0 means all rates <= X */
1368         sdata->max_ratectrl_rateidx = -1;
1369         sdata->force_unicast_rateidx = -1;
1370
1371         if (mask->fixed)
1372                 target_rate = mask->fixed / 100;
1373         else if (mask->maxrate)
1374                 target_rate = mask->maxrate / 100;
1375         else
1376                 return 0;
1377
1378         for (i=0; i< sband->n_bitrates; i++) {
1379                 struct ieee80211_rate *brate = &sband->bitrates[i];
1380                 int this_rate = brate->bitrate;
1381
1382                 if (target_rate == this_rate) {
1383                         sdata->max_ratectrl_rateidx = i;
1384                         if (mask->fixed)
1385                                 sdata->force_unicast_rateidx = i;
1386                         err = 0;
1387                         break;
1388                 }
1389         }
1390
1391         return err;
1392 }
1393
1394 struct cfg80211_ops mac80211_config_ops = {
1395         .add_virtual_intf = ieee80211_add_iface,
1396         .del_virtual_intf = ieee80211_del_iface,
1397         .change_virtual_intf = ieee80211_change_iface,
1398         .add_key = ieee80211_add_key,
1399         .del_key = ieee80211_del_key,
1400         .get_key = ieee80211_get_key,
1401         .set_default_key = ieee80211_config_default_key,
1402         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1403         .add_beacon = ieee80211_add_beacon,
1404         .set_beacon = ieee80211_set_beacon,
1405         .del_beacon = ieee80211_del_beacon,
1406         .add_station = ieee80211_add_station,
1407         .del_station = ieee80211_del_station,
1408         .change_station = ieee80211_change_station,
1409         .get_station = ieee80211_get_station,
1410         .dump_station = ieee80211_dump_station,
1411 #ifdef CONFIG_MAC80211_MESH
1412         .add_mpath = ieee80211_add_mpath,
1413         .del_mpath = ieee80211_del_mpath,
1414         .change_mpath = ieee80211_change_mpath,
1415         .get_mpath = ieee80211_get_mpath,
1416         .dump_mpath = ieee80211_dump_mpath,
1417         .set_mesh_params = ieee80211_set_mesh_params,
1418         .get_mesh_params = ieee80211_get_mesh_params,
1419 #endif
1420         .change_bss = ieee80211_change_bss,
1421         .set_txq_params = ieee80211_set_txq_params,
1422         .set_channel = ieee80211_set_channel,
1423         .suspend = ieee80211_suspend,
1424         .resume = ieee80211_resume,
1425         .scan = ieee80211_scan,
1426         .auth = ieee80211_auth,
1427         .assoc = ieee80211_assoc,
1428         .deauth = ieee80211_deauth,
1429         .disassoc = ieee80211_disassoc,
1430         .join_ibss = ieee80211_join_ibss,
1431         .leave_ibss = ieee80211_leave_ibss,
1432         .set_wiphy_params = ieee80211_set_wiphy_params,
1433         .set_tx_power = ieee80211_set_tx_power,
1434         .get_tx_power = ieee80211_get_tx_power,
1435         .set_wds_peer = ieee80211_set_wds_peer,
1436         .rfkill_poll = ieee80211_rfkill_poll,
1437         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1438         .set_power_mgmt = ieee80211_set_power_mgmt,
1439         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1440 };