net/mac80211/cfg.c

   1 /*
   2  * mac80211 configuration hooks for cfg80211
   3  *
   4  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   5  *
   6  * This file is GPLv2 as found in COPYING.
   7  */
   8
   9 #include <linux/ieee80211.h>
  10 #include <linux/nl80211.h>
  11 #include <linux/rtnetlink.h>
  12 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24))
  13 #include <net/net_namespace.h>
  14 #endif
  15 #include <linux/rcupdate.h>
  16 #include <net/cfg80211.h>
  17 #include "ieee80211_i.h"
  18 #include "driver-ops.h"
  19 #include "cfg.h"
  20 #include "rate.h"
  21 #include "mesh.h"
  22
  23 static bool nl80211_type_check(enum nl80211_iftype type)
  24 {
  25         switch (type) {
  26         case NL80211_IFTYPE_ADHOC:
  27         case NL80211_IFTYPE_STATION:
  28         case NL80211_IFTYPE_MONITOR:
  29 #ifdef CONFIG_MAC80211_MESH
  30         case NL80211_IFTYPE_MESH_POINT:
  31 #endif
  32         case NL80211_IFTYPE_AP:
  33         case NL80211_IFTYPE_AP_VLAN:
  34         case NL80211_IFTYPE_WDS:
  35                 return true;
  36         default:
  37                 return false;
  38         }
  39 }
  40
  41 static bool nl80211_params_check(enum nl80211_iftype type,
  42                                  struct vif_params *params)
  43 {
  44         if (!nl80211_type_check(type))
  45                 return false;
  46
  47         return true;
  48 }
  49
  50 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
  51                                enum nl80211_iftype type, u32 *flags,
  52                                struct vif_params *params)
  53 {
  54         struct ieee80211_local *local = wiphy_priv(wiphy);
  55         struct net_device *dev;
  56         struct ieee80211_sub_if_data *sdata;
  57         int err;
  58
  59         if (!nl80211_params_check(type, params))
  60                 return -EINVAL;
  61
  62         err = ieee80211_if_add(local, name, &dev, type, params);
  63         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
  64                 return err;
  65
  66         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  67         sdata->u.mntr_flags = *flags;
  68         return 0;
  69 }
  70
  71 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
  72 {
  73         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
  74
  75         return 0;
  76 }
  77
  78 static int ieee80211_change_iface(struct wiphy *wiphy,
  79                                   struct net_device *dev,
  80                                   enum nl80211_iftype type, u32 *flags,
  81                                   struct vif_params *params)
  82 {
  83         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  84         int ret;
  85
  86         if (ieee80211_sdata_running(sdata))
  87                 return -EBUSY;
  88
  89         if (!nl80211_params_check(type, params))
  90                 return -EINVAL;
  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_bss(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_bss(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_bss(sdata, mac_addr);
 232                 if (!sta)
 233                         goto out;
 234
 235                 key = sta->key;
 236         } else
 237                 key = sdata->keys[key_idx];
 238
 239         if (!key)
 240                 goto out;
 241
 242         memset(&params, 0, sizeof(params));
 243
 244         switch (key->conf.alg) {
 245         case ALG_TKIP:
 246                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
 247
 248                 iv32 = key->u.tkip.tx.iv32;
 249                 iv16 = key->u.tkip.tx.iv16;
 250
 251                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 252                         drv_get_tkip_seq(sdata->local,
 253                                          key->conf.hw_key_idx,
 254                                          &iv32, &iv16);
 255
 256                 seq[0] = iv16 & 0xff;
 257                 seq[1] = (iv16 >> 8) & 0xff;
 258                 seq[2] = iv32 & 0xff;
 259                 seq[3] = (iv32 >> 8) & 0xff;
 260                 seq[4] = (iv32 >> 16) & 0xff;
 261                 seq[5] = (iv32 >> 24) & 0xff;
 262                 params.seq = seq;
 263                 params.seq_len = 6;
 264                 break;
 265         case ALG_CCMP:
 266                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
 267                 seq[0] = key->u.ccmp.tx_pn[5];
 268                 seq[1] = key->u.ccmp.tx_pn[4];
 269                 seq[2] = key->u.ccmp.tx_pn[3];
 270                 seq[3] = key->u.ccmp.tx_pn[2];
 271                 seq[4] = key->u.ccmp.tx_pn[1];
 272                 seq[5] = key->u.ccmp.tx_pn[0];
 273                 params.seq = seq;
 274                 params.seq_len = 6;
 275                 break;
 276         case ALG_WEP:
 277                 if (key->conf.keylen == 5)
 278                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
 279                 else
 280                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
 281                 break;
 282         case ALG_AES_CMAC:
 283                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 284                 seq[0] = key->u.aes_cmac.tx_pn[5];
 285                 seq[1] = key->u.aes_cmac.tx_pn[4];
 286                 seq[2] = key->u.aes_cmac.tx_pn[3];
 287                 seq[3] = key->u.aes_cmac.tx_pn[2];
 288                 seq[4] = key->u.aes_cmac.tx_pn[1];
 289                 seq[5] = key->u.aes_cmac.tx_pn[0];
 290                 params.seq = seq;
 291                 params.seq_len = 6;
 292                 break;
 293         }
 294
 295         params.key = key->conf.key;
 296         params.key_len = key->conf.keylen;
 297
 298         callback(cookie, &params);
 299         err = 0;
 300
 301  out:
 302         rcu_read_unlock();
 303         return err;
 304 }
 305
 306 static int ieee80211_config_default_key(struct wiphy *wiphy,
 307                                         struct net_device *dev,
 308                                         u8 key_idx)
 309 {
 310         struct ieee80211_sub_if_data *sdata;
 311
 312         rcu_read_lock();
 313
 314         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 315         ieee80211_set_default_key(sdata, key_idx);
 316
 317         rcu_read_unlock();
 318
 319         return 0;
 320 }
 321
 322 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 323                                              struct net_device *dev,
 324                                              u8 key_idx)
 325 {
 326         struct ieee80211_sub_if_data *sdata;
 327
 328         rcu_read_lock();
 329
 330         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 331         ieee80211_set_default_mgmt_key(sdata, key_idx);
 332
 333         rcu_read_unlock();
 334
 335         return 0;
 336 }
 337
 338 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 339 {
 340         struct ieee80211_sub_if_data *sdata = sta->sdata;
 341
 342         sinfo->generation = sdata->local->sta_generation;
 343
 344         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 345                         STATION_INFO_RX_BYTES |
 346                         STATION_INFO_TX_BYTES |
 347                         STATION_INFO_RX_PACKETS |
 348                         STATION_INFO_TX_PACKETS |
 349                         STATION_INFO_TX_BITRATE;
 350
 351         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 352         sinfo->rx_bytes = sta->rx_bytes;
 353         sinfo->tx_bytes = sta->tx_bytes;
 354         sinfo->rx_packets = sta->rx_packets;
 355         sinfo->tx_packets = sta->tx_packets;
 356
 357         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 358             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 359                 sinfo->filled |= STATION_INFO_SIGNAL;
 360                 sinfo->signal = (s8)sta->last_signal;
 361         }
 362
 363         sinfo->txrate.flags = 0;
 364         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 365                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 366         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 367                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 368         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 369                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 370
 371         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 372                 struct ieee80211_supported_band *sband;
 373                 sband = sta->local->hw.wiphy->bands[
 374                                 sta->local->hw.conf.channel->band];
 375                 sinfo->txrate.legacy =
 376                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 377         } else
 378                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 379
 380         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 381 #ifdef CONFIG_MAC80211_MESH
 382                 sinfo->filled |= STATION_INFO_LLID |
 383                                  STATION_INFO_PLID |
 384                                  STATION_INFO_PLINK_STATE;
 385
 386                 sinfo->llid = le16_to_cpu(sta->llid);
 387                 sinfo->plid = le16_to_cpu(sta->plid);
 388                 sinfo->plink_state = sta->plink_state;
 389 #endif
 390         }
 391 }
 392
 393
 394 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 395                                  int idx, u8 *mac, struct station_info *sinfo)
 396 {
 397         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 398         struct sta_info *sta;
 399         int ret = -ENOENT;
 400
 401         rcu_read_lock();
 402
 403         sta = sta_info_get_by_idx(sdata, idx);
 404         if (sta) {
 405                 ret = 0;
 406                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 407                 sta_set_sinfo(sta, sinfo);
 408         }
 409
 410         rcu_read_unlock();
 411
 412         return ret;
 413 }
 414
 415 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 416                                  u8 *mac, struct station_info *sinfo)
 417 {
 418         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 419         struct sta_info *sta;
 420         int ret = -ENOENT;
 421
 422         rcu_read_lock();
 423
 424         sta = sta_info_get_bss(sdata, mac);
 425         if (sta) {
 426                 ret = 0;
 427                 sta_set_sinfo(sta, sinfo);
 428         }
 429
 430         rcu_read_unlock();
 431
 432         return ret;
 433 }
 434
 435 /*
 436  * This handles both adding a beacon and setting new beacon info
 437  */
 438 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 439                                    struct beacon_parameters *params)
 440 {
 441         struct beacon_data *new, *old;
 442         int new_head_len, new_tail_len;
 443         int size;
 444         int err = -EINVAL;
 445
 446         old = sdata->u.ap.beacon;
 447
 448         /* head must not be zero-length */
 449         if (params->head && !params->head_len)
 450                 return -EINVAL;
 451
 452         /*
 453          * This is a kludge. beacon interval should really be part
 454          * of the beacon information.
 455          */
 456         if (params->interval &&
 457             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 458                 sdata->vif.bss_conf.beacon_int = params->interval;
 459                 ieee80211_bss_info_change_notify(sdata,
 460                                                  BSS_CHANGED_BEACON_INT);
 461         }
 462
 463         /* Need to have a beacon head if we don't have one yet */
 464         if (!params->head && !old)
 465                 return err;
 466
 467         /* sorry, no way to start beaconing without dtim period */
 468         if (!params->dtim_period && !old)
 469                 return err;
 470
 471         /* new or old head? */
 472         if (params->head)
 473                 new_head_len = params->head_len;
 474         else
 475                 new_head_len = old->head_len;
 476
 477         /* new or old tail? */
 478         if (params->tail || !old)
 479                 /* params->tail_len will be zero for !params->tail */
 480                 new_tail_len = params->tail_len;
 481         else
 482                 new_tail_len = old->tail_len;
 483
 484         size = sizeof(*new) + new_head_len + new_tail_len;
 485
 486         new = kzalloc(size, GFP_KERNEL);
 487         if (!new)
 488                 return -ENOMEM;
 489
 490         /* start filling the new info now */
 491
 492         /* new or old dtim period? */
 493         if (params->dtim_period)
 494                 new->dtim_period = params->dtim_period;
 495         else
 496                 new->dtim_period = old->dtim_period;
 497
 498         /*
 499          * pointers go into the block we allocated,
 500          * memory is | beacon_data | head | tail |
 501          */
 502         new->head = ((u8 *) new) + sizeof(*new);
 503         new->tail = new->head + new_head_len;
 504         new->head_len = new_head_len;
 505         new->tail_len = new_tail_len;
 506
 507         /* copy in head */
 508         if (params->head)
 509                 memcpy(new->head, params->head, new_head_len);
 510         else
 511                 memcpy(new->head, old->head, new_head_len);
 512
 513         /* copy in optional tail */
 514         if (params->tail)
 515                 memcpy(new->tail, params->tail, new_tail_len);
 516         else
 517                 if (old)
 518                         memcpy(new->tail, old->tail, new_tail_len);
 519
 520         sdata->vif.bss_conf.dtim_period = new->dtim_period;
 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, sdata->vif.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         err = sta_info_insert_rcu(sta);
 755         if (err) {
 756                 rcu_read_unlock();
 757                 return err;
 758         }
 759
 760         if (layer2_update)
 761                 ieee80211_send_layer2_update(sta);
 762
 763         rcu_read_unlock();
 764
 765         return 0;
 766 }
 767
 768 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 769                                  u8 *mac)
 770 {
 771         struct ieee80211_local *local = wiphy_priv(wiphy);
 772         struct ieee80211_sub_if_data *sdata;
 773
 774         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 775
 776         if (mac)
 777                 return sta_info_destroy_addr_bss(sdata, mac);
 778
 779         sta_info_flush(local, sdata);
 780         return 0;
 781 }
 782
 783 static int ieee80211_change_station(struct wiphy *wiphy,
 784                                     struct net_device *dev,
 785                                     u8 *mac,
 786                                     struct station_parameters *params)
 787 {
 788         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 789         struct ieee80211_local *local = wiphy_priv(wiphy);
 790         struct sta_info *sta;
 791         struct ieee80211_sub_if_data *vlansdata;
 792
 793         rcu_read_lock();
 794
 795         sta = sta_info_get_bss(sdata, mac);
 796         if (!sta) {
 797                 rcu_read_unlock();
 798                 return -ENOENT;
 799         }
 800
 801         if (params->vlan && params->vlan != sta->sdata->dev) {
 802                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 803
 804                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 805                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 806                         rcu_read_unlock();
 807                         return -EINVAL;
 808                 }
 809
 810                 if (params->vlan->ieee80211_ptr->use_4addr) {
 811                         if (vlansdata->u.vlan.sta) {
 812                                 rcu_read_unlock();
 813                                 return -EBUSY;
 814                         }
 815
 816                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 817                 }
 818
 819                 sta->sdata = vlansdata;
 820                 ieee80211_send_layer2_update(sta);
 821         }
 822
 823         sta_apply_parameters(local, sta, params);
 824
 825         rcu_read_unlock();
 826
 827         return 0;
 828 }
 829
 830 #ifdef CONFIG_MAC80211_MESH
 831 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 832                                  u8 *dst, u8 *next_hop)
 833 {
 834         struct ieee80211_sub_if_data *sdata;
 835         struct mesh_path *mpath;
 836         struct sta_info *sta;
 837         int err;
 838
 839         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 840
 841         rcu_read_lock();
 842         sta = sta_info_get(sdata, next_hop);
 843         if (!sta) {
 844                 rcu_read_unlock();
 845                 return -ENOENT;
 846         }
 847
 848         err = mesh_path_add(dst, sdata);
 849         if (err) {
 850                 rcu_read_unlock();
 851                 return err;
 852         }
 853
 854         mpath = mesh_path_lookup(dst, sdata);
 855         if (!mpath) {
 856                 rcu_read_unlock();
 857                 return -ENXIO;
 858         }
 859         mesh_path_fix_nexthop(mpath, sta);
 860
 861         rcu_read_unlock();
 862         return 0;
 863 }
 864
 865 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 866                                  u8 *dst)
 867 {
 868         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 869
 870         if (dst)
 871                 return mesh_path_del(dst, sdata);
 872
 873         mesh_path_flush(sdata);
 874         return 0;
 875 }
 876
 877 static int ieee80211_change_mpath(struct wiphy *wiphy,
 878                                     struct net_device *dev,
 879                                     u8 *dst, u8 *next_hop)
 880 {
 881         struct ieee80211_sub_if_data *sdata;
 882         struct mesh_path *mpath;
 883         struct sta_info *sta;
 884
 885         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 886
 887         rcu_read_lock();
 888
 889         sta = sta_info_get(sdata, next_hop);
 890         if (!sta) {
 891                 rcu_read_unlock();
 892                 return -ENOENT;
 893         }
 894
 895         mpath = mesh_path_lookup(dst, sdata);
 896         if (!mpath) {
 897                 rcu_read_unlock();
 898                 return -ENOENT;
 899         }
 900
 901         mesh_path_fix_nexthop(mpath, sta);
 902
 903         rcu_read_unlock();
 904         return 0;
 905 }
 906
 907 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 908                             struct mpath_info *pinfo)
 909 {
 910         if (mpath->next_hop)
 911                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 912         else
 913                 memset(next_hop, 0, ETH_ALEN);
 914
 915         pinfo->generation = mesh_paths_generation;
 916
 917         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 918                         MPATH_INFO_SN |
 919                         MPATH_INFO_METRIC |
 920                         MPATH_INFO_EXPTIME |
 921                         MPATH_INFO_DISCOVERY_TIMEOUT |
 922                         MPATH_INFO_DISCOVERY_RETRIES |
 923                         MPATH_INFO_FLAGS;
 924
 925         pinfo->frame_qlen = mpath->frame_queue.qlen;
 926         pinfo->sn = mpath->sn;
 927         pinfo->metric = mpath->metric;
 928         if (time_before(jiffies, mpath->exp_time))
 929                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 930         pinfo->discovery_timeout =
 931                         jiffies_to_msecs(mpath->discovery_timeout);
 932         pinfo->discovery_retries = mpath->discovery_retries;
 933         pinfo->flags = 0;
 934         if (mpath->flags & MESH_PATH_ACTIVE)
 935                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 936         if (mpath->flags & MESH_PATH_RESOLVING)
 937                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 938         if (mpath->flags & MESH_PATH_SN_VALID)
 939                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 940         if (mpath->flags & MESH_PATH_FIXED)
 941                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 942         if (mpath->flags & MESH_PATH_RESOLVING)
 943                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 944
 945         pinfo->flags = mpath->flags;
 946 }
 947
 948 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 949                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 950
 951 {
 952         struct ieee80211_sub_if_data *sdata;
 953         struct mesh_path *mpath;
 954
 955         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 956
 957         rcu_read_lock();
 958         mpath = mesh_path_lookup(dst, sdata);
 959         if (!mpath) {
 960                 rcu_read_unlock();
 961                 return -ENOENT;
 962         }
 963         memcpy(dst, mpath->dst, ETH_ALEN);
 964         mpath_set_pinfo(mpath, next_hop, pinfo);
 965         rcu_read_unlock();
 966         return 0;
 967 }
 968
 969 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 970                                  int idx, u8 *dst, u8 *next_hop,
 971                                  struct mpath_info *pinfo)
 972 {
 973         struct ieee80211_sub_if_data *sdata;
 974         struct mesh_path *mpath;
 975
 976         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 977
 978         rcu_read_lock();
 979         mpath = mesh_path_lookup_by_idx(idx, sdata);
 980         if (!mpath) {
 981                 rcu_read_unlock();
 982                 return -ENOENT;
 983         }
 984         memcpy(dst, mpath->dst, ETH_ALEN);
 985         mpath_set_pinfo(mpath, next_hop, pinfo);
 986         rcu_read_unlock();
 987         return 0;
 988 }
 989
 990 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
 991                                 struct net_device *dev,
 992                                 struct mesh_config *conf)
 993 {
 994         struct ieee80211_sub_if_data *sdata;
 995         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 996
 997         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
 998         return 0;
 999 }
1000
1001 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1002 {
1003         return (mask >> (parm-1)) & 0x1;
1004 }
1005
1006 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1007                                 struct net_device *dev,
1008                                 const struct mesh_config *nconf, u32 mask)
1009 {
1010         struct mesh_config *conf;
1011         struct ieee80211_sub_if_data *sdata;
1012         struct ieee80211_if_mesh *ifmsh;
1013
1014         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1015         ifmsh = &sdata->u.mesh;
1016
1017         /* Set the config options which we are interested in setting */
1018         conf = &(sdata->u.mesh.mshcfg);
1019         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1020                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1021         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1022                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1023         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1024                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1025         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1026                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1027         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1028                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1029         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1030                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1031         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1032                 conf->auto_open_plinks = nconf->auto_open_plinks;
1033         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1034                 conf->dot11MeshHWMPmaxPREQretries =
1035                         nconf->dot11MeshHWMPmaxPREQretries;
1036         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1037                 conf->path_refresh_time = nconf->path_refresh_time;
1038         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1039                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1040         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1041                 conf->dot11MeshHWMPactivePathTimeout =
1042                         nconf->dot11MeshHWMPactivePathTimeout;
1043         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1044                 conf->dot11MeshHWMPpreqMinInterval =
1045                         nconf->dot11MeshHWMPpreqMinInterval;
1046         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1047                            mask))
1048                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1049                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1050         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1051                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1052                 ieee80211_mesh_root_setup(ifmsh);
1053         }
1054         return 0;
1055 }
1056
1057 #endif
1058
1059 static int ieee80211_change_bss(struct wiphy *wiphy,
1060                                 struct net_device *dev,
1061                                 struct bss_parameters *params)
1062 {
1063         struct ieee80211_sub_if_data *sdata;
1064         u32 changed = 0;
1065
1066         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1067
1068         if (params->use_cts_prot >= 0) {
1069                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1070                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1071         }
1072         if (params->use_short_preamble >= 0) {
1073                 sdata->vif.bss_conf.use_short_preamble =
1074                         params->use_short_preamble;
1075                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1076         }
1077
1078         if (!sdata->vif.bss_conf.use_short_slot &&
1079             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1080                 sdata->vif.bss_conf.use_short_slot = true;
1081                 changed |= BSS_CHANGED_ERP_SLOT;
1082         }
1083
1084         if (params->use_short_slot_time >= 0) {
1085                 sdata->vif.bss_conf.use_short_slot =
1086                         params->use_short_slot_time;
1087                 changed |= BSS_CHANGED_ERP_SLOT;
1088         }
1089
1090         if (params->basic_rates) {
1091                 int i, j;
1092                 u32 rates = 0;
1093                 struct ieee80211_local *local = wiphy_priv(wiphy);
1094                 struct ieee80211_supported_band *sband =
1095                         wiphy->bands[local->oper_channel->band];
1096
1097                 for (i = 0; i < params->basic_rates_len; i++) {
1098                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1099                         for (j = 0; j < sband->n_bitrates; j++) {
1100                                 if (sband->bitrates[j].bitrate == rate)
1101                                         rates |= BIT(j);
1102                         }
1103                 }
1104                 sdata->vif.bss_conf.basic_rates = rates;
1105                 changed |= BSS_CHANGED_BASIC_RATES;
1106         }
1107
1108         ieee80211_bss_info_change_notify(sdata, changed);
1109
1110         return 0;
1111 }
1112
1113 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1114                                     struct ieee80211_txq_params *params)
1115 {
1116         struct ieee80211_local *local = wiphy_priv(wiphy);
1117         struct ieee80211_tx_queue_params p;
1118
1119         if (!local->ops->conf_tx)
1120                 return -EOPNOTSUPP;
1121
1122         memset(&p, 0, sizeof(p));
1123         p.aifs = params->aifs;
1124         p.cw_max = params->cwmax;
1125         p.cw_min = params->cwmin;
1126         p.txop = params->txop;
1127
1128         /*
1129          * Setting tx queue params disables u-apsd because it's only
1130          * called in master mode.
1131          */
1132         p.uapsd = false;
1133
1134         if (drv_conf_tx(local, params->queue, &p)) {
1135                 printk(KERN_DEBUG "%s: failed to set TX queue "
1136                        "parameters for queue %d\n",
1137                        wiphy_name(local->hw.wiphy), params->queue);
1138                 return -EINVAL;
1139         }
1140
1141         return 0;
1142 }
1143
1144 static int ieee80211_set_channel(struct wiphy *wiphy,
1145                                  struct ieee80211_channel *chan,
1146                                  enum nl80211_channel_type channel_type)
1147 {
1148         struct ieee80211_local *local = wiphy_priv(wiphy);
1149
1150         local->oper_channel = chan;
1151         local->oper_channel_type = channel_type;
1152
1153         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1154 }
1155
1156 #ifdef CONFIG_PM
1157 static int ieee80211_suspend(struct wiphy *wiphy)
1158 {
1159         return __ieee80211_suspend(wiphy_priv(wiphy));
1160 }
1161
1162 static int ieee80211_resume(struct wiphy *wiphy)
1163 {
1164         return __ieee80211_resume(wiphy_priv(wiphy));
1165 }
1166 #else
1167 #define ieee80211_suspend NULL
1168 #define ieee80211_resume NULL
1169 #endif
1170
1171 static int ieee80211_scan(struct wiphy *wiphy,
1172                           struct net_device *dev,
1173                           struct cfg80211_scan_request *req)
1174 {
1175         struct ieee80211_sub_if_data *sdata;
1176
1177         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1178
1179         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1180             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1181             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1182             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1183                 return -EOPNOTSUPP;
1184
1185         return ieee80211_request_scan(sdata, req);
1186 }
1187
1188 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1189                           struct cfg80211_auth_request *req)
1190 {
1191         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1192 }
1193
1194 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1195                            struct cfg80211_assoc_request *req)
1196 {
1197         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1198 }
1199
1200 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1201                             struct cfg80211_deauth_request *req,
1202                             void *cookie)
1203 {
1204         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1205                                     req, cookie);
1206 }
1207
1208 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1209                               struct cfg80211_disassoc_request *req,
1210                               void *cookie)
1211 {
1212         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1213                                       req, cookie);
1214 }
1215
1216 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1217                                struct cfg80211_ibss_params *params)
1218 {
1219         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1220
1221         return ieee80211_ibss_join(sdata, params);
1222 }
1223
1224 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1225 {
1226         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1227
1228         return ieee80211_ibss_leave(sdata);
1229 }
1230
1231 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1232 {
1233         struct ieee80211_local *local = wiphy_priv(wiphy);
1234         int err;
1235
1236         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1237                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1238
1239                 if (err)
1240                         return err;
1241         }
1242
1243         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1244                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1245
1246                 if (err)
1247                         return err;
1248         }
1249
1250         if (changed & WIPHY_PARAM_RETRY_SHORT)
1251                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1252         if (changed & WIPHY_PARAM_RETRY_LONG)
1253                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1254         if (changed &
1255             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1256                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1257
1258         return 0;
1259 }
1260
1261 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1262                                   enum tx_power_setting type, int dbm)
1263 {
1264         struct ieee80211_local *local = wiphy_priv(wiphy);
1265         struct ieee80211_channel *chan = local->hw.conf.channel;
1266         u32 changes = 0;
1267
1268         switch (type) {
1269         case TX_POWER_AUTOMATIC:
1270                 local->user_power_level = -1;
1271                 break;
1272         case TX_POWER_LIMITED:
1273                 if (dbm < 0)
1274                         return -EINVAL;
1275                 local->user_power_level = dbm;
1276                 break;
1277         case TX_POWER_FIXED:
1278                 if (dbm < 0)
1279                         return -EINVAL;
1280                 /* TODO: move to cfg80211 when it knows the channel */
1281                 if (dbm > chan->max_power)
1282                         return -EINVAL;
1283                 local->user_power_level = dbm;
1284                 break;
1285         }
1286
1287         ieee80211_hw_config(local, changes);
1288
1289         return 0;
1290 }
1291
1292 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1293 {
1294         struct ieee80211_local *local = wiphy_priv(wiphy);
1295
1296         *dbm = local->hw.conf.power_level;
1297
1298         return 0;
1299 }
1300
1301 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1302                                   u8 *addr)
1303 {
1304         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1305
1306         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1307
1308         return 0;
1309 }
1310
1311 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1312 {
1313         struct ieee80211_local *local = wiphy_priv(wiphy);
1314
1315         drv_rfkill_poll(local);
1316 }
1317
1318 #ifdef CONFIG_NL80211_TESTMODE
1319 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1320 {
1321         struct ieee80211_local *local = wiphy_priv(wiphy);
1322
1323         if (!local->ops->testmode_cmd)
1324                 return -EOPNOTSUPP;
1325
1326         return local->ops->testmode_cmd(&local->hw, data, len);
1327 }
1328 #endif
1329
1330 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1331                              enum ieee80211_smps_mode smps_mode)
1332 {
1333         const u8 *ap;
1334         enum ieee80211_smps_mode old_req;
1335         int err;
1336
1337         old_req = sdata->u.mgd.req_smps;
1338         sdata->u.mgd.req_smps = smps_mode;
1339
1340         if (old_req == smps_mode &&
1341             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1342                 return 0;
1343
1344         /*
1345          * If not associated, or current association is not an HT
1346          * association, there's no need to send an action frame.
1347          */
1348         if (!sdata->u.mgd.associated ||
1349             sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
1350                 mutex_lock(&sdata->local->iflist_mtx);
1351                 ieee80211_recalc_smps(sdata->local, sdata);
1352                 mutex_unlock(&sdata->local->iflist_mtx);
1353                 return 0;
1354         }
1355
1356         ap = sdata->u.mgd.associated->bssid;
1357
1358         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1359                 if (sdata->u.mgd.powersave)
1360                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1361                 else
1362                         smps_mode = IEEE80211_SMPS_OFF;
1363         }
1364
1365         /* send SM PS frame to AP */
1366         err = ieee80211_send_smps_action(sdata, smps_mode,
1367                                          ap, ap);
1368         if (err)
1369                 sdata->u.mgd.req_smps = old_req;
1370
1371         return err;
1372 }
1373
1374 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1375                                     bool enabled, int timeout)
1376 {
1377         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1378         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1379         struct ieee80211_conf *conf = &local->hw.conf;
1380
1381         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1382                 return -EOPNOTSUPP;
1383
1384         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1385                 return -EOPNOTSUPP;
1386
1387         if (enabled == sdata->u.mgd.powersave &&
1388             timeout == conf->dynamic_ps_timeout)
1389                 return 0;
1390
1391         sdata->u.mgd.powersave = enabled;
1392         conf->dynamic_ps_timeout = timeout;
1393
1394         /* no change, but if automatic follow powersave */
1395         mutex_lock(&sdata->u.mgd.mtx);
1396         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1397         mutex_unlock(&sdata->u.mgd.mtx);
1398
1399         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1400                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1401
1402         ieee80211_recalc_ps(local, -1);
1403
1404         return 0;
1405 }
1406
1407 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1408                                       struct net_device *dev,
1409                                       const u8 *addr,
1410                                       const struct cfg80211_bitrate_mask *mask)
1411 {
1412         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1413         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1414         int i;
1415
1416         /*
1417          * This _could_ be supported by providing a hook for
1418          * drivers for this function, but at this point it
1419          * doesn't seem worth bothering.
1420          */
1421         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1422                 return -EOPNOTSUPP;
1423
1424
1425         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1426                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1427
1428         return 0;
1429 }
1430
1431 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1432                                        struct net_device *dev,
1433                                        struct ieee80211_channel *chan,
1434                                        enum nl80211_channel_type channel_type,
1435                                        unsigned int duration,
1436                                        u64 *cookie)
1437 {
1438         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1439
1440         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1441                                               duration, cookie);
1442 }
1443
1444 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1445                                               struct net_device *dev,
1446                                               u64 cookie)
1447 {
1448         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1449
1450         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1451 }
1452
1453 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1454                             struct ieee80211_channel *chan,
1455                             enum nl80211_channel_type channel_type,
1456                             const u8 *buf, size_t len, u64 *cookie)
1457 {
1458         return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan,
1459                                     channel_type, buf, len, cookie);
1460 }
1461
1462 struct cfg80211_ops mac80211_config_ops = {
1463         .add_virtual_intf = ieee80211_add_iface,
1464         .del_virtual_intf = ieee80211_del_iface,
1465         .change_virtual_intf = ieee80211_change_iface,
1466         .add_key = ieee80211_add_key,
1467         .del_key = ieee80211_del_key,
1468         .get_key = ieee80211_get_key,
1469         .set_default_key = ieee80211_config_default_key,
1470         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1471         .add_beacon = ieee80211_add_beacon,
1472         .set_beacon = ieee80211_set_beacon,
1473         .del_beacon = ieee80211_del_beacon,
1474         .add_station = ieee80211_add_station,
1475         .del_station = ieee80211_del_station,
1476         .change_station = ieee80211_change_station,
1477         .get_station = ieee80211_get_station,
1478         .dump_station = ieee80211_dump_station,
1479 #ifdef CONFIG_MAC80211_MESH
1480         .add_mpath = ieee80211_add_mpath,
1481         .del_mpath = ieee80211_del_mpath,
1482         .change_mpath = ieee80211_change_mpath,
1483         .get_mpath = ieee80211_get_mpath,
1484         .dump_mpath = ieee80211_dump_mpath,
1485         .set_mesh_params = ieee80211_set_mesh_params,
1486         .get_mesh_params = ieee80211_get_mesh_params,
1487 #endif
1488         .change_bss = ieee80211_change_bss,
1489         .set_txq_params = ieee80211_set_txq_params,
1490         .set_channel = ieee80211_set_channel,
1491         .suspend = ieee80211_suspend,
1492         .resume = ieee80211_resume,
1493         .scan = ieee80211_scan,
1494         .auth = ieee80211_auth,
1495         .assoc = ieee80211_assoc,
1496         .deauth = ieee80211_deauth,
1497         .disassoc = ieee80211_disassoc,
1498         .join_ibss = ieee80211_join_ibss,
1499         .leave_ibss = ieee80211_leave_ibss,
1500         .set_wiphy_params = ieee80211_set_wiphy_params,
1501         .set_tx_power = ieee80211_set_tx_power,
1502         .get_tx_power = ieee80211_get_tx_power,
1503         .set_wds_peer = ieee80211_set_wds_peer,
1504         .rfkill_poll = ieee80211_rfkill_poll,
1505         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1506         .set_power_mgmt = ieee80211_set_power_mgmt,
1507         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1508         .remain_on_channel = ieee80211_remain_on_channel,
1509         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1510         .action = ieee80211_action,
1511 };