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 #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 = IEEE80211_DEV_TO_SUB_IF(dev);
  82         int ret;
  83
  84         if (ieee80211_sdata_running(sdata))
  85                 return -EBUSY;
  86
  87         if (!nl80211_params_check(type, params))
  88                 return -EINVAL;
  89
  90         ret = ieee80211_if_change_type(sdata, type);
  91         if (ret)
  92                 return ret;
  93
  94         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
  95                 ieee80211_sdata_set_mesh_id(sdata,
  96                                             params->mesh_id_len,
  97                                             params->mesh_id);
  98
  99         if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
 100                 return 0;
 101
 102         if (type == NL80211_IFTYPE_AP_VLAN &&
 103             params && params->use_4addr == 0)
 104                 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
 105         else if (type == NL80211_IFTYPE_STATION &&
 106                  params && params->use_4addr >= 0)
 107                 sdata->u.mgd.use_4addr = params->use_4addr;
 108
 109         sdata->u.mntr_flags = *flags;
 110         return 0;
 111 }
 112
 113 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 114                              u8 key_idx, const u8 *mac_addr,
 115                              struct key_params *params)
 116 {
 117         struct ieee80211_sub_if_data *sdata;
 118         struct sta_info *sta = NULL;
 119         enum ieee80211_key_alg alg;
 120         struct ieee80211_key *key;
 121         int err;
 122
 123         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 124
 125         switch (params->cipher) {
 126         case WLAN_CIPHER_SUITE_WEP40:
 127         case WLAN_CIPHER_SUITE_WEP104:
 128                 alg = ALG_WEP;
 129                 break;
 130         case WLAN_CIPHER_SUITE_TKIP:
 131                 alg = ALG_TKIP;
 132                 break;
 133         case WLAN_CIPHER_SUITE_CCMP:
 134                 alg = ALG_CCMP;
 135                 break;
 136         case WLAN_CIPHER_SUITE_AES_CMAC:
 137                 alg = ALG_AES_CMAC;
 138                 break;
 139         default:
 140                 return -EINVAL;
 141         }
 142
 143         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
 144                                   params->seq_len, params->seq);
 145         if (!key)
 146                 return -ENOMEM;
 147
 148         rcu_read_lock();
 149
 150         if (mac_addr) {
 151                 sta = sta_info_get_bss(sdata, mac_addr);
 152                 if (!sta) {
 153                         ieee80211_key_free(key);
 154                         err = -ENOENT;
 155                         goto out_unlock;
 156                 }
 157         }
 158
 159         ieee80211_key_link(key, sdata, sta);
 160
 161         err = 0;
 162  out_unlock:
 163         rcu_read_unlock();
 164
 165         return err;
 166 }
 167
 168 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 169                              u8 key_idx, const u8 *mac_addr)
 170 {
 171         struct ieee80211_sub_if_data *sdata;
 172         struct sta_info *sta;
 173         int ret;
 174
 175         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 176
 177         rcu_read_lock();
 178
 179         if (mac_addr) {
 180                 ret = -ENOENT;
 181
 182                 sta = sta_info_get_bss(sdata, mac_addr);
 183                 if (!sta)
 184                         goto out_unlock;
 185
 186                 if (sta->key) {
 187                         ieee80211_key_free(sta->key);
 188                         WARN_ON(sta->key);
 189                         ret = 0;
 190                 }
 191
 192                 goto out_unlock;
 193         }
 194
 195         if (!sdata->keys[key_idx]) {
 196                 ret = -ENOENT;
 197                 goto out_unlock;
 198         }
 199
 200         ieee80211_key_free(sdata->keys[key_idx]);
 201         WARN_ON(sdata->keys[key_idx]);
 202
 203         ret = 0;
 204  out_unlock:
 205         rcu_read_unlock();
 206
 207         return ret;
 208 }
 209
 210 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 211                              u8 key_idx, const u8 *mac_addr, void *cookie,
 212                              void (*callback)(void *cookie,
 213                                               struct key_params *params))
 214 {
 215         struct ieee80211_sub_if_data *sdata;
 216         struct sta_info *sta = NULL;
 217         u8 seq[6] = {0};
 218         struct key_params params;
 219         struct ieee80211_key *key;
 220         u32 iv32;
 221         u16 iv16;
 222         int err = -ENOENT;
 223
 224         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 225
 226         rcu_read_lock();
 227
 228         if (mac_addr) {
 229                 sta = sta_info_get_bss(sdata, mac_addr);
 230                 if (!sta)
 231                         goto out;
 232
 233                 key = sta->key;
 234         } else
 235                 key = sdata->keys[key_idx];
 236
 237         if (!key)
 238                 goto out;
 239
 240         memset(&params, 0, sizeof(params));
 241
 242         switch (key->conf.alg) {
 243         case ALG_TKIP:
 244                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
 245
 246                 iv32 = key->u.tkip.tx.iv32;
 247                 iv16 = key->u.tkip.tx.iv16;
 248
 249                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 250                         drv_get_tkip_seq(sdata->local,
 251                                          key->conf.hw_key_idx,
 252                                          &iv32, &iv16);
 253
 254                 seq[0] = iv16 & 0xff;
 255                 seq[1] = (iv16 >> 8) & 0xff;
 256                 seq[2] = iv32 & 0xff;
 257                 seq[3] = (iv32 >> 8) & 0xff;
 258                 seq[4] = (iv32 >> 16) & 0xff;
 259                 seq[5] = (iv32 >> 24) & 0xff;
 260                 params.seq = seq;
 261                 params.seq_len = 6;
 262                 break;
 263         case ALG_CCMP:
 264                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
 265                 seq[0] = key->u.ccmp.tx_pn[5];
 266                 seq[1] = key->u.ccmp.tx_pn[4];
 267                 seq[2] = key->u.ccmp.tx_pn[3];
 268                 seq[3] = key->u.ccmp.tx_pn[2];
 269                 seq[4] = key->u.ccmp.tx_pn[1];
 270                 seq[5] = key->u.ccmp.tx_pn[0];
 271                 params.seq = seq;
 272                 params.seq_len = 6;
 273                 break;
 274         case ALG_WEP:
 275                 if (key->conf.keylen == 5)
 276                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
 277                 else
 278                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
 279                 break;
 280         case ALG_AES_CMAC:
 281                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 282                 seq[0] = key->u.aes_cmac.tx_pn[5];
 283                 seq[1] = key->u.aes_cmac.tx_pn[4];
 284                 seq[2] = key->u.aes_cmac.tx_pn[3];
 285                 seq[3] = key->u.aes_cmac.tx_pn[2];
 286                 seq[4] = key->u.aes_cmac.tx_pn[1];
 287                 seq[5] = key->u.aes_cmac.tx_pn[0];
 288                 params.seq = seq;
 289                 params.seq_len = 6;
 290                 break;
 291         }
 292
 293         params.key = key->conf.key;
 294         params.key_len = key->conf.keylen;
 295
 296         callback(cookie, &params);
 297         err = 0;
 298
 299  out:
 300         rcu_read_unlock();
 301         return err;
 302 }
 303
 304 static int ieee80211_config_default_key(struct wiphy *wiphy,
 305                                         struct net_device *dev,
 306                                         u8 key_idx)
 307 {
 308         struct ieee80211_sub_if_data *sdata;
 309
 310         rcu_read_lock();
 311
 312         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 313         ieee80211_set_default_key(sdata, key_idx);
 314
 315         rcu_read_unlock();
 316
 317         return 0;
 318 }
 319
 320 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 321                                              struct net_device *dev,
 322                                              u8 key_idx)
 323 {
 324         struct ieee80211_sub_if_data *sdata;
 325
 326         rcu_read_lock();
 327
 328         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 329         ieee80211_set_default_mgmt_key(sdata, key_idx);
 330
 331         rcu_read_unlock();
 332
 333         return 0;
 334 }
 335
 336 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 337 {
 338         struct ieee80211_sub_if_data *sdata = sta->sdata;
 339
 340         sinfo->generation = sdata->local->sta_generation;
 341
 342         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 343                         STATION_INFO_RX_BYTES |
 344                         STATION_INFO_TX_BYTES |
 345                         STATION_INFO_RX_PACKETS |
 346                         STATION_INFO_TX_PACKETS |
 347                         STATION_INFO_TX_BITRATE;
 348
 349         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 350         sinfo->rx_bytes = sta->rx_bytes;
 351         sinfo->tx_bytes = sta->tx_bytes;
 352         sinfo->rx_packets = sta->rx_packets;
 353         sinfo->tx_packets = sta->tx_packets;
 354
 355         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 356             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 357                 sinfo->filled |= STATION_INFO_SIGNAL;
 358                 sinfo->signal = (s8)sta->last_signal;
 359         }
 360
 361         sinfo->txrate.flags = 0;
 362         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 363                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 364         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 365                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 366         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 367                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 368
 369         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 370                 struct ieee80211_supported_band *sband;
 371                 sband = sta->local->hw.wiphy->bands[
 372                                 sta->local->hw.conf.channel->band];
 373                 sinfo->txrate.legacy =
 374                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 375         } else
 376                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 377
 378         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 379 #ifdef CONFIG_MAC80211_MESH
 380                 sinfo->filled |= STATION_INFO_LLID |
 381                                  STATION_INFO_PLID |
 382                                  STATION_INFO_PLINK_STATE;
 383
 384                 sinfo->llid = le16_to_cpu(sta->llid);
 385                 sinfo->plid = le16_to_cpu(sta->plid);
 386                 sinfo->plink_state = sta->plink_state;
 387 #endif
 388         }
 389 }
 390
 391
 392 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 393                                  int idx, u8 *mac, struct station_info *sinfo)
 394 {
 395         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 396         struct sta_info *sta;
 397         int ret = -ENOENT;
 398
 399         rcu_read_lock();
 400
 401         sta = sta_info_get_by_idx(sdata, idx);
 402         if (sta) {
 403                 ret = 0;
 404                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 405                 sta_set_sinfo(sta, sinfo);
 406         }
 407
 408         rcu_read_unlock();
 409
 410         return ret;
 411 }
 412
 413 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 414                                  u8 *mac, struct station_info *sinfo)
 415 {
 416         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 417         struct sta_info *sta;
 418         int ret = -ENOENT;
 419
 420         rcu_read_lock();
 421
 422         sta = sta_info_get_bss(sdata, mac);
 423         if (sta) {
 424                 ret = 0;
 425                 sta_set_sinfo(sta, sinfo);
 426         }
 427
 428         rcu_read_unlock();
 429
 430         return ret;
 431 }
 432
 433 /*
 434  * This handles both adding a beacon and setting new beacon info
 435  */
 436 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 437                                    struct beacon_parameters *params)
 438 {
 439         struct beacon_data *new, *old;
 440         int new_head_len, new_tail_len;
 441         int size;
 442         int err = -EINVAL;
 443
 444         old = sdata->u.ap.beacon;
 445
 446         /* head must not be zero-length */
 447         if (params->head && !params->head_len)
 448                 return -EINVAL;
 449
 450         /*
 451          * This is a kludge. beacon interval should really be part
 452          * of the beacon information.
 453          */
 454         if (params->interval &&
 455             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 456                 sdata->vif.bss_conf.beacon_int = params->interval;
 457                 ieee80211_bss_info_change_notify(sdata,
 458                                                  BSS_CHANGED_BEACON_INT);
 459         }
 460
 461         /* Need to have a beacon head if we don't have one yet */
 462         if (!params->head && !old)
 463                 return err;
 464
 465         /* sorry, no way to start beaconing without dtim period */
 466         if (!params->dtim_period && !old)
 467                 return err;
 468
 469         /* new or old head? */
 470         if (params->head)
 471                 new_head_len = params->head_len;
 472         else
 473                 new_head_len = old->head_len;
 474
 475         /* new or old tail? */
 476         if (params->tail || !old)
 477                 /* params->tail_len will be zero for !params->tail */
 478                 new_tail_len = params->tail_len;
 479         else
 480                 new_tail_len = old->tail_len;
 481
 482         size = sizeof(*new) + new_head_len + new_tail_len;
 483
 484         new = kzalloc(size, GFP_KERNEL);
 485         if (!new)
 486                 return -ENOMEM;
 487
 488         /* start filling the new info now */
 489
 490         /* new or old dtim period? */
 491         if (params->dtim_period)
 492                 new->dtim_period = params->dtim_period;
 493         else
 494                 new->dtim_period = old->dtim_period;
 495
 496         /*
 497          * pointers go into the block we allocated,
 498          * memory is | beacon_data | head | tail |
 499          */
 500         new->head = ((u8 *) new) + sizeof(*new);
 501         new->tail = new->head + new_head_len;
 502         new->head_len = new_head_len;
 503         new->tail_len = new_tail_len;
 504
 505         /* copy in head */
 506         if (params->head)
 507                 memcpy(new->head, params->head, new_head_len);
 508         else
 509                 memcpy(new->head, old->head, new_head_len);
 510
 511         /* copy in optional tail */
 512         if (params->tail)
 513                 memcpy(new->tail, params->tail, new_tail_len);
 514         else
 515                 if (old)
 516                         memcpy(new->tail, old->tail, new_tail_len);
 517
 518         sdata->vif.bss_conf.dtim_period = new->dtim_period;
 519
 520         rcu_assign_pointer(sdata->u.ap.beacon, new);
 521
 522         synchronize_rcu();
 523
 524         kfree(old);
 525
 526         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 527                                                 BSS_CHANGED_BEACON);
 528         return 0;
 529 }
 530
 531 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 532                                 struct beacon_parameters *params)
 533 {
 534         struct ieee80211_sub_if_data *sdata;
 535         struct beacon_data *old;
 536
 537         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 538
 539         old = sdata->u.ap.beacon;
 540
 541         if (old)
 542                 return -EALREADY;
 543
 544         return ieee80211_config_beacon(sdata, params);
 545 }
 546
 547 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 548                                 struct beacon_parameters *params)
 549 {
 550         struct ieee80211_sub_if_data *sdata;
 551         struct beacon_data *old;
 552
 553         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 554
 555         old = sdata->u.ap.beacon;
 556
 557         if (!old)
 558                 return -ENOENT;
 559
 560         return ieee80211_config_beacon(sdata, params);
 561 }
 562
 563 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 564 {
 565         struct ieee80211_sub_if_data *sdata;
 566         struct beacon_data *old;
 567
 568         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 569
 570         old = sdata->u.ap.beacon;
 571
 572         if (!old)
 573                 return -ENOENT;
 574
 575         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 576         synchronize_rcu();
 577         kfree(old);
 578
 579         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 580         return 0;
 581 }
 582
 583 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 584 struct iapp_layer2_update {
 585         u8 da[ETH_ALEN];        /* broadcast */
 586         u8 sa[ETH_ALEN];        /* STA addr */
 587         __be16 len;             /* 6 */
 588         u8 dsap;                /* 0 */
 589         u8 ssap;                /* 0 */
 590         u8 control;
 591         u8 xid_info[3];
 592 } __attribute__ ((packed));
 593
 594 static void ieee80211_send_layer2_update(struct sta_info *sta)
 595 {
 596         struct iapp_layer2_update *msg;
 597         struct sk_buff *skb;
 598
 599         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 600          * bridge devices */
 601
 602         skb = dev_alloc_skb(sizeof(*msg));
 603         if (!skb)
 604                 return;
 605         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 606
 607         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 608          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 609
 610         memset(msg->da, 0xff, ETH_ALEN);
 611         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 612         msg->len = htons(6);
 613         msg->dsap = 0;
 614         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 615         msg->control = 0xaf;    /* XID response lsb.1111F101.
 616                                  * F=0 (no poll command; unsolicited frame) */
 617         msg->xid_info[0] = 0x81;        /* XID format identifier */
 618         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 619         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 620
 621         skb->dev = sta->sdata->dev;
 622         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 623         memset(skb->cb, 0, sizeof(skb->cb));
 624         netif_rx(skb);
 625 }
 626
 627 static void sta_apply_parameters(struct ieee80211_local *local,
 628                                  struct sta_info *sta,
 629                                  struct station_parameters *params)
 630 {
 631         u32 rates;
 632         int i, j;
 633         struct ieee80211_supported_band *sband;
 634         struct ieee80211_sub_if_data *sdata = sta->sdata;
 635         u32 mask, set;
 636
 637         sband = local->hw.wiphy->bands[local->oper_channel->band];
 638
 639         spin_lock_bh(&sta->lock);
 640         mask = params->sta_flags_mask;
 641         set = params->sta_flags_set;
 642
 643         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 644                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 645                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 646                         sta->flags |= WLAN_STA_AUTHORIZED;
 647         }
 648
 649         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 650                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 651                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 652                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 653         }
 654
 655         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 656                 sta->flags &= ~WLAN_STA_WME;
 657                 if (set & BIT(NL80211_STA_FLAG_WME))
 658                         sta->flags |= WLAN_STA_WME;
 659         }
 660
 661         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 662                 sta->flags &= ~WLAN_STA_MFP;
 663                 if (set & BIT(NL80211_STA_FLAG_MFP))
 664                         sta->flags |= WLAN_STA_MFP;
 665         }
 666         spin_unlock_bh(&sta->lock);
 667
 668         /*
 669          * cfg80211 validates this (1-2007) and allows setting the AID
 670          * only when creating a new station entry
 671          */
 672         if (params->aid)
 673                 sta->sta.aid = params->aid;
 674
 675         /*
 676          * FIXME: updating the following information is racy when this
 677          *        function is called from ieee80211_change_station().
 678          *        However, all this information should be static so
 679          *        maybe we should just reject attemps to change it.
 680          */
 681
 682         if (params->listen_interval >= 0)
 683                 sta->listen_interval = params->listen_interval;
 684
 685         if (params->supported_rates) {
 686                 rates = 0;
 687
 688                 for (i = 0; i < params->supported_rates_len; i++) {
 689                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 690                         for (j = 0; j < sband->n_bitrates; j++) {
 691                                 if (sband->bitrates[j].bitrate == rate)
 692                                         rates |= BIT(j);
 693                         }
 694                 }
 695                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 696         }
 697
 698         if (params->ht_capa)
 699                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 700                                                   params->ht_capa,
 701                                                   &sta->sta.ht_cap);
 702
 703         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 704                 switch (params->plink_action) {
 705                 case PLINK_ACTION_OPEN:
 706                         mesh_plink_open(sta);
 707                         break;
 708                 case PLINK_ACTION_BLOCK:
 709                         mesh_plink_block(sta);
 710                         break;
 711                 }
 712         }
 713 }
 714
 715 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 716                                  u8 *mac, struct station_parameters *params)
 717 {
 718         struct ieee80211_local *local = wiphy_priv(wiphy);
 719         struct sta_info *sta;
 720         struct ieee80211_sub_if_data *sdata;
 721         int err;
 722         int layer2_update;
 723
 724         if (params->vlan) {
 725                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 726
 727                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 728                     sdata->vif.type != NL80211_IFTYPE_AP)
 729                         return -EINVAL;
 730         } else
 731                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 732
 733         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
 734                 return -EINVAL;
 735
 736         if (is_multicast_ether_addr(mac))
 737                 return -EINVAL;
 738
 739         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 740         if (!sta)
 741                 return -ENOMEM;
 742
 743         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 744
 745         sta_apply_parameters(local, sta, params);
 746
 747         rate_control_rate_init(sta);
 748
 749         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 750                 sdata->vif.type == NL80211_IFTYPE_AP;
 751
 752         err = sta_info_insert_rcu(sta);
 753         if (err) {
 754                 rcu_read_unlock();
 755                 return err;
 756         }
 757
 758         if (layer2_update)
 759                 ieee80211_send_layer2_update(sta);
 760
 761         rcu_read_unlock();
 762
 763         return 0;
 764 }
 765
 766 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 767                                  u8 *mac)
 768 {
 769         struct ieee80211_local *local = wiphy_priv(wiphy);
 770         struct ieee80211_sub_if_data *sdata;
 771
 772         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 773
 774         if (mac)
 775                 return sta_info_destroy_addr_bss(sdata, mac);
 776
 777         sta_info_flush(local, sdata);
 778         return 0;
 779 }
 780
 781 static int ieee80211_change_station(struct wiphy *wiphy,
 782                                     struct net_device *dev,
 783                                     u8 *mac,
 784                                     struct station_parameters *params)
 785 {
 786         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 787         struct ieee80211_local *local = wiphy_priv(wiphy);
 788         struct sta_info *sta;
 789         struct ieee80211_sub_if_data *vlansdata;
 790
 791         rcu_read_lock();
 792
 793         sta = sta_info_get_bss(sdata, mac);
 794         if (!sta) {
 795                 rcu_read_unlock();
 796                 return -ENOENT;
 797         }
 798
 799         if (params->vlan && params->vlan != sta->sdata->dev) {
 800                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 801
 802                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 803                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 804                         rcu_read_unlock();
 805                         return -EINVAL;
 806                 }
 807
 808                 if (params->vlan->ieee80211_ptr->use_4addr) {
 809                         if (vlansdata->u.vlan.sta) {
 810                                 rcu_read_unlock();
 811                                 return -EBUSY;
 812                         }
 813
 814                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 815                 }
 816
 817                 sta->sdata = vlansdata;
 818                 ieee80211_send_layer2_update(sta);
 819         }
 820
 821         sta_apply_parameters(local, sta, params);
 822
 823         rcu_read_unlock();
 824
 825         return 0;
 826 }
 827
 828 #ifdef CONFIG_MAC80211_MESH
 829 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 830                                  u8 *dst, u8 *next_hop)
 831 {
 832         struct ieee80211_sub_if_data *sdata;
 833         struct mesh_path *mpath;
 834         struct sta_info *sta;
 835         int err;
 836
 837         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 838
 839         rcu_read_lock();
 840         sta = sta_info_get(sdata, next_hop);
 841         if (!sta) {
 842                 rcu_read_unlock();
 843                 return -ENOENT;
 844         }
 845
 846         err = mesh_path_add(dst, sdata);
 847         if (err) {
 848                 rcu_read_unlock();
 849                 return err;
 850         }
 851
 852         mpath = mesh_path_lookup(dst, sdata);
 853         if (!mpath) {
 854                 rcu_read_unlock();
 855                 return -ENXIO;
 856         }
 857         mesh_path_fix_nexthop(mpath, sta);
 858
 859         rcu_read_unlock();
 860         return 0;
 861 }
 862
 863 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 864                                  u8 *dst)
 865 {
 866         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 867
 868         if (dst)
 869                 return mesh_path_del(dst, sdata);
 870
 871         mesh_path_flush(sdata);
 872         return 0;
 873 }
 874
 875 static int ieee80211_change_mpath(struct wiphy *wiphy,
 876                                     struct net_device *dev,
 877                                     u8 *dst, u8 *next_hop)
 878 {
 879         struct ieee80211_sub_if_data *sdata;
 880         struct mesh_path *mpath;
 881         struct sta_info *sta;
 882
 883         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 884
 885         rcu_read_lock();
 886
 887         sta = sta_info_get(sdata, next_hop);
 888         if (!sta) {
 889                 rcu_read_unlock();
 890                 return -ENOENT;
 891         }
 892
 893         mpath = mesh_path_lookup(dst, sdata);
 894         if (!mpath) {
 895                 rcu_read_unlock();
 896                 return -ENOENT;
 897         }
 898
 899         mesh_path_fix_nexthop(mpath, sta);
 900
 901         rcu_read_unlock();
 902         return 0;
 903 }
 904
 905 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 906                             struct mpath_info *pinfo)
 907 {
 908         if (mpath->next_hop)
 909                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 910         else
 911                 memset(next_hop, 0, ETH_ALEN);
 912
 913         pinfo->generation = mesh_paths_generation;
 914
 915         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 916                         MPATH_INFO_SN |
 917                         MPATH_INFO_METRIC |
 918                         MPATH_INFO_EXPTIME |
 919                         MPATH_INFO_DISCOVERY_TIMEOUT |
 920                         MPATH_INFO_DISCOVERY_RETRIES |
 921                         MPATH_INFO_FLAGS;
 922
 923         pinfo->frame_qlen = mpath->frame_queue.qlen;
 924         pinfo->sn = mpath->sn;
 925         pinfo->metric = mpath->metric;
 926         if (time_before(jiffies, mpath->exp_time))
 927                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 928         pinfo->discovery_timeout =
 929                         jiffies_to_msecs(mpath->discovery_timeout);
 930         pinfo->discovery_retries = mpath->discovery_retries;
 931         pinfo->flags = 0;
 932         if (mpath->flags & MESH_PATH_ACTIVE)
 933                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 934         if (mpath->flags & MESH_PATH_RESOLVING)
 935                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 936         if (mpath->flags & MESH_PATH_SN_VALID)
 937                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 938         if (mpath->flags & MESH_PATH_FIXED)
 939                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 940         if (mpath->flags & MESH_PATH_RESOLVING)
 941                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 942
 943         pinfo->flags = mpath->flags;
 944 }
 945
 946 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 947                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 948
 949 {
 950         struct ieee80211_sub_if_data *sdata;
 951         struct mesh_path *mpath;
 952
 953         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 954
 955         rcu_read_lock();
 956         mpath = mesh_path_lookup(dst, sdata);
 957         if (!mpath) {
 958                 rcu_read_unlock();
 959                 return -ENOENT;
 960         }
 961         memcpy(dst, mpath->dst, ETH_ALEN);
 962         mpath_set_pinfo(mpath, next_hop, pinfo);
 963         rcu_read_unlock();
 964         return 0;
 965 }
 966
 967 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 968                                  int idx, u8 *dst, u8 *next_hop,
 969                                  struct mpath_info *pinfo)
 970 {
 971         struct ieee80211_sub_if_data *sdata;
 972         struct mesh_path *mpath;
 973
 974         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 975
 976         rcu_read_lock();
 977         mpath = mesh_path_lookup_by_idx(idx, sdata);
 978         if (!mpath) {
 979                 rcu_read_unlock();
 980                 return -ENOENT;
 981         }
 982         memcpy(dst, mpath->dst, ETH_ALEN);
 983         mpath_set_pinfo(mpath, next_hop, pinfo);
 984         rcu_read_unlock();
 985         return 0;
 986 }
 987
 988 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
 989                                 struct net_device *dev,
 990                                 struct mesh_config *conf)
 991 {
 992         struct ieee80211_sub_if_data *sdata;
 993         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 994
 995         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
 996         return 0;
 997 }
 998
 999 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1000 {
1001         return (mask >> (parm-1)) & 0x1;
1002 }
1003
1004 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1005                                 struct net_device *dev,
1006                                 const struct mesh_config *nconf, u32 mask)
1007 {
1008         struct mesh_config *conf;
1009         struct ieee80211_sub_if_data *sdata;
1010         struct ieee80211_if_mesh *ifmsh;
1011
1012         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1013         ifmsh = &sdata->u.mesh;
1014
1015         /* Set the config options which we are interested in setting */
1016         conf = &(sdata->u.mesh.mshcfg);
1017         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1018                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1019         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1020                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1021         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1022                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1023         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1024                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1025         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1026                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1027         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1028                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1029         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1030                 conf->auto_open_plinks = nconf->auto_open_plinks;
1031         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1032                 conf->dot11MeshHWMPmaxPREQretries =
1033                         nconf->dot11MeshHWMPmaxPREQretries;
1034         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1035                 conf->path_refresh_time = nconf->path_refresh_time;
1036         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1037                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1038         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1039                 conf->dot11MeshHWMPactivePathTimeout =
1040                         nconf->dot11MeshHWMPactivePathTimeout;
1041         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1042                 conf->dot11MeshHWMPpreqMinInterval =
1043                         nconf->dot11MeshHWMPpreqMinInterval;
1044         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1045                            mask))
1046                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1047                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1048         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1049                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1050                 ieee80211_mesh_root_setup(ifmsh);
1051         }
1052         return 0;
1053 }
1054
1055 #endif
1056
1057 static int ieee80211_change_bss(struct wiphy *wiphy,
1058                                 struct net_device *dev,
1059                                 struct bss_parameters *params)
1060 {
1061         struct ieee80211_sub_if_data *sdata;
1062         u32 changed = 0;
1063
1064         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1065
1066         if (params->use_cts_prot >= 0) {
1067                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1068                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1069         }
1070         if (params->use_short_preamble >= 0) {
1071                 sdata->vif.bss_conf.use_short_preamble =
1072                         params->use_short_preamble;
1073                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1074         }
1075
1076         if (!sdata->vif.bss_conf.use_short_slot &&
1077             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1078                 sdata->vif.bss_conf.use_short_slot = true;
1079                 changed |= BSS_CHANGED_ERP_SLOT;
1080         }
1081
1082         if (params->use_short_slot_time >= 0) {
1083                 sdata->vif.bss_conf.use_short_slot =
1084                         params->use_short_slot_time;
1085                 changed |= BSS_CHANGED_ERP_SLOT;
1086         }
1087
1088         if (params->basic_rates) {
1089                 int i, j;
1090                 u32 rates = 0;
1091                 struct ieee80211_local *local = wiphy_priv(wiphy);
1092                 struct ieee80211_supported_band *sband =
1093                         wiphy->bands[local->oper_channel->band];
1094
1095                 for (i = 0; i < params->basic_rates_len; i++) {
1096                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1097                         for (j = 0; j < sband->n_bitrates; j++) {
1098                                 if (sband->bitrates[j].bitrate == rate)
1099                                         rates |= BIT(j);
1100                         }
1101                 }
1102                 sdata->vif.bss_conf.basic_rates = rates;
1103                 changed |= BSS_CHANGED_BASIC_RATES;
1104         }
1105
1106         ieee80211_bss_info_change_notify(sdata, changed);
1107
1108         return 0;
1109 }
1110
1111 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1112                                     struct ieee80211_txq_params *params)
1113 {
1114         struct ieee80211_local *local = wiphy_priv(wiphy);
1115         struct ieee80211_tx_queue_params p;
1116
1117         if (!local->ops->conf_tx)
1118                 return -EOPNOTSUPP;
1119
1120         memset(&p, 0, sizeof(p));
1121         p.aifs = params->aifs;
1122         p.cw_max = params->cwmax;
1123         p.cw_min = params->cwmin;
1124         p.txop = params->txop;
1125
1126         /*
1127          * Setting tx queue params disables u-apsd because it's only
1128          * called in master mode.
1129          */
1130         p.uapsd = false;
1131
1132         if (drv_conf_tx(local, params->queue, &p)) {
1133                 printk(KERN_DEBUG "%s: failed to set TX queue "
1134                        "parameters for queue %d\n",
1135                        wiphy_name(local->hw.wiphy), params->queue);
1136                 return -EINVAL;
1137         }
1138
1139         return 0;
1140 }
1141
1142 static int ieee80211_set_channel(struct wiphy *wiphy,
1143                                  struct ieee80211_channel *chan,
1144                                  enum nl80211_channel_type channel_type)
1145 {
1146         struct ieee80211_local *local = wiphy_priv(wiphy);
1147
1148         local->oper_channel = chan;
1149         local->oper_channel_type = channel_type;
1150
1151         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1152 }
1153
1154 #ifdef CONFIG_PM
1155 static int ieee80211_suspend(struct wiphy *wiphy)
1156 {
1157         return __ieee80211_suspend(wiphy_priv(wiphy));
1158 }
1159
1160 static int ieee80211_resume(struct wiphy *wiphy)
1161 {
1162         return __ieee80211_resume(wiphy_priv(wiphy));
1163 }
1164 #else
1165 #define ieee80211_suspend NULL
1166 #define ieee80211_resume NULL
1167 #endif
1168
1169 static int ieee80211_scan(struct wiphy *wiphy,
1170                           struct net_device *dev,
1171                           struct cfg80211_scan_request *req)
1172 {
1173         struct ieee80211_sub_if_data *sdata;
1174
1175         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1176
1177         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1178             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1179             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1180             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1181                 return -EOPNOTSUPP;
1182
1183         return ieee80211_request_scan(sdata, req);
1184 }
1185
1186 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1187                           struct cfg80211_auth_request *req)
1188 {
1189         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1190 }
1191
1192 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1193                            struct cfg80211_assoc_request *req)
1194 {
1195         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1196 }
1197
1198 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1199                             struct cfg80211_deauth_request *req,
1200                             void *cookie)
1201 {
1202         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1203                                     req, cookie);
1204 }
1205
1206 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1207                               struct cfg80211_disassoc_request *req,
1208                               void *cookie)
1209 {
1210         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1211                                       req, cookie);
1212 }
1213
1214 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1215                                struct cfg80211_ibss_params *params)
1216 {
1217         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1218
1219         return ieee80211_ibss_join(sdata, params);
1220 }
1221
1222 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1223 {
1224         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1225
1226         return ieee80211_ibss_leave(sdata);
1227 }
1228
1229 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1230 {
1231         struct ieee80211_local *local = wiphy_priv(wiphy);
1232         int err;
1233
1234         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1235                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1236
1237                 if (err)
1238                         return err;
1239         }
1240
1241         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1242                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1243
1244                 if (err)
1245                         return err;
1246         }
1247
1248         if (changed & WIPHY_PARAM_RETRY_SHORT)
1249                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1250         if (changed & WIPHY_PARAM_RETRY_LONG)
1251                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1252         if (changed &
1253             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1254                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1255
1256         return 0;
1257 }
1258
1259 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1260                                   enum tx_power_setting type, int dbm)
1261 {
1262         struct ieee80211_local *local = wiphy_priv(wiphy);
1263         struct ieee80211_channel *chan = local->hw.conf.channel;
1264         u32 changes = 0;
1265
1266         switch (type) {
1267         case TX_POWER_AUTOMATIC:
1268                 local->user_power_level = -1;
1269                 break;
1270         case TX_POWER_LIMITED:
1271                 if (dbm < 0)
1272                         return -EINVAL;
1273                 local->user_power_level = dbm;
1274                 break;
1275         case TX_POWER_FIXED:
1276                 if (dbm < 0)
1277                         return -EINVAL;
1278                 /* TODO: move to cfg80211 when it knows the channel */
1279                 if (dbm > chan->max_power)
1280                         return -EINVAL;
1281                 local->user_power_level = dbm;
1282                 break;
1283         }
1284
1285         ieee80211_hw_config(local, changes);
1286
1287         return 0;
1288 }
1289
1290 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1291 {
1292         struct ieee80211_local *local = wiphy_priv(wiphy);
1293
1294         *dbm = local->hw.conf.power_level;
1295
1296         return 0;
1297 }
1298
1299 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1300                                   u8 *addr)
1301 {
1302         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1303
1304         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1305
1306         return 0;
1307 }
1308
1309 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1310 {
1311         struct ieee80211_local *local = wiphy_priv(wiphy);
1312
1313         drv_rfkill_poll(local);
1314 }
1315
1316 #ifdef CONFIG_NL80211_TESTMODE
1317 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1318 {
1319         struct ieee80211_local *local = wiphy_priv(wiphy);
1320
1321         if (!local->ops->testmode_cmd)
1322                 return -EOPNOTSUPP;
1323
1324         return local->ops->testmode_cmd(&local->hw, data, len);
1325 }
1326 #endif
1327
1328 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1329                              enum ieee80211_smps_mode smps_mode)
1330 {
1331         const u8 *ap;
1332         enum ieee80211_smps_mode old_req;
1333         int err;
1334
1335         old_req = sdata->u.mgd.req_smps;
1336         sdata->u.mgd.req_smps = smps_mode;
1337
1338         if (old_req == smps_mode &&
1339             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1340                 return 0;
1341
1342         /*
1343          * If not associated, or current association is not an HT
1344          * association, there's no need to send an action frame.
1345          */
1346         if (!sdata->u.mgd.associated ||
1347             sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
1348                 mutex_lock(&sdata->local->iflist_mtx);
1349                 ieee80211_recalc_smps(sdata->local, sdata);
1350                 mutex_unlock(&sdata->local->iflist_mtx);
1351                 return 0;
1352         }
1353
1354         ap = sdata->u.mgd.associated->bssid;
1355
1356         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1357                 if (sdata->u.mgd.powersave)
1358                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1359                 else
1360                         smps_mode = IEEE80211_SMPS_OFF;
1361         }
1362
1363         /* send SM PS frame to AP */
1364         err = ieee80211_send_smps_action(sdata, smps_mode,
1365                                          ap, ap);
1366         if (err)
1367                 sdata->u.mgd.req_smps = old_req;
1368
1369         return err;
1370 }
1371
1372 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1373                                     bool enabled, int timeout)
1374 {
1375         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1376         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1377         struct ieee80211_conf *conf = &local->hw.conf;
1378
1379         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1380                 return -EOPNOTSUPP;
1381
1382         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1383                 return -EOPNOTSUPP;
1384
1385         if (enabled == sdata->u.mgd.powersave &&
1386             timeout == conf->dynamic_ps_timeout)
1387                 return 0;
1388
1389         sdata->u.mgd.powersave = enabled;
1390         conf->dynamic_ps_timeout = timeout;
1391
1392         /* no change, but if automatic follow powersave */
1393         mutex_lock(&sdata->u.mgd.mtx);
1394         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1395         mutex_unlock(&sdata->u.mgd.mtx);
1396
1397         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1398                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1399
1400         ieee80211_recalc_ps(local, -1);
1401
1402         return 0;
1403 }
1404
1405 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1406                                       struct net_device *dev,
1407                                       const u8 *addr,
1408                                       const struct cfg80211_bitrate_mask *mask)
1409 {
1410         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1411         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1412         int i;
1413
1414         /*
1415          * This _could_ be supported by providing a hook for
1416          * drivers for this function, but at this point it
1417          * doesn't seem worth bothering.
1418          */
1419         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1420                 return -EOPNOTSUPP;
1421
1422
1423         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1424                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1425
1426         return 0;
1427 }
1428
1429 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1430                                        struct net_device *dev,
1431                                        struct ieee80211_channel *chan,
1432                                        enum nl80211_channel_type channel_type,
1433                                        unsigned int duration,
1434                                        u64 *cookie)
1435 {
1436         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1437
1438         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1439                                               duration, cookie);
1440 }
1441
1442 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1443                                               struct net_device *dev,
1444                                               u64 cookie)
1445 {
1446         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1447
1448         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1449 }
1450
1451 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1452                             struct ieee80211_channel *chan,
1453                             enum nl80211_channel_type channel_type,
1454                             const u8 *buf, size_t len, u64 *cookie)
1455 {
1456         return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan,
1457                                     channel_type, buf, len, cookie);
1458 }
1459
1460 struct cfg80211_ops mac80211_config_ops = {
1461         .add_virtual_intf = ieee80211_add_iface,
1462         .del_virtual_intf = ieee80211_del_iface,
1463         .change_virtual_intf = ieee80211_change_iface,
1464         .add_key = ieee80211_add_key,
1465         .del_key = ieee80211_del_key,
1466         .get_key = ieee80211_get_key,
1467         .set_default_key = ieee80211_config_default_key,
1468         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1469         .add_beacon = ieee80211_add_beacon,
1470         .set_beacon = ieee80211_set_beacon,
1471         .del_beacon = ieee80211_del_beacon,
1472         .add_station = ieee80211_add_station,
1473         .del_station = ieee80211_del_station,
1474         .change_station = ieee80211_change_station,
1475         .get_station = ieee80211_get_station,
1476         .dump_station = ieee80211_dump_station,
1477 #ifdef CONFIG_MAC80211_MESH
1478         .add_mpath = ieee80211_add_mpath,
1479         .del_mpath = ieee80211_del_mpath,
1480         .change_mpath = ieee80211_change_mpath,
1481         .get_mpath = ieee80211_get_mpath,
1482         .dump_mpath = ieee80211_dump_mpath,
1483         .set_mesh_params = ieee80211_set_mesh_params,
1484         .get_mesh_params = ieee80211_get_mesh_params,
1485 #endif
1486         .change_bss = ieee80211_change_bss,
1487         .set_txq_params = ieee80211_set_txq_params,
1488         .set_channel = ieee80211_set_channel,
1489         .suspend = ieee80211_suspend,
1490         .resume = ieee80211_resume,
1491         .scan = ieee80211_scan,
1492         .auth = ieee80211_auth,
1493         .assoc = ieee80211_assoc,
1494         .deauth = ieee80211_deauth,
1495         .disassoc = ieee80211_disassoc,
1496         .join_ibss = ieee80211_join_ibss,
1497         .leave_ibss = ieee80211_leave_ibss,
1498         .set_wiphy_params = ieee80211_set_wiphy_params,
1499         .set_tx_power = ieee80211_set_tx_power,
1500         .get_tx_power = ieee80211_get_tx_power,
1501         .set_wds_peer = ieee80211_set_wds_peer,
1502         .rfkill_poll = ieee80211_rfkill_poll,
1503         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1504         .set_power_mgmt = ieee80211_set_power_mgmt,
1505         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1506         .remain_on_channel = ieee80211_remain_on_channel,
1507         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1508         .action = ieee80211_action,
1509 };