net/mac80211/cfg.c

   1 /*
   2  * mac80211 configuration hooks for cfg80211
   3  *
   4  * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
   5  *
   6  * This file is GPLv2 as found in COPYING.
   7  */
   8
   9 #include <linux/ieee80211.h>
  10 #include <linux/nl80211.h>
  11 #include <linux/rtnetlink.h>
  12 #include <net/net_namespace.h>
  13 #include <linux/rcupdate.h>
  14 #include <net/cfg80211.h>
  15 #include "ieee80211_i.h"
  16 #include "driver-ops.h"
  17 #include "cfg.h"
  18 #include "rate.h"
  19 #include "mesh.h"
  20
  21 static bool nl80211_type_check(enum nl80211_iftype type)
  22 {
  23         switch (type) {
  24         case NL80211_IFTYPE_ADHOC:
  25         case NL80211_IFTYPE_STATION:
  26         case NL80211_IFTYPE_MONITOR:
  27 #ifdef CONFIG_MAC80211_MESH
  28         case NL80211_IFTYPE_MESH_POINT:
  29 #endif
  30         case NL80211_IFTYPE_AP:
  31         case NL80211_IFTYPE_AP_VLAN:
  32         case NL80211_IFTYPE_WDS:
  33                 return true;
  34         default:
  35                 return false;
  36         }
  37 }
  38
  39 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
  40                                enum nl80211_iftype type, u32 *flags,
  41                                struct vif_params *params)
  42 {
  43         struct ieee80211_local *local = wiphy_priv(wiphy);
  44         struct net_device *dev;
  45         struct ieee80211_sub_if_data *sdata;
  46         int err;
  47
  48         if (!nl80211_type_check(type))
  49                 return -EINVAL;
  50
  51         err = ieee80211_if_add(local, name, &dev, type, params);
  52         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
  53                 return err;
  54
  55         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  56         sdata->u.mntr_flags = *flags;
  57         return 0;
  58 }
  59
  60 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
  61 {
  62         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
  63
  64         return 0;
  65 }
  66
  67 static int ieee80211_change_iface(struct wiphy *wiphy,
  68                                   struct net_device *dev,
  69                                   enum nl80211_iftype type, u32 *flags,
  70                                   struct vif_params *params)
  71 {
  72         struct ieee80211_sub_if_data *sdata;
  73         int ret;
  74
  75         if (!nl80211_type_check(type))
  76                 return -EINVAL;
  77
  78         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  79
  80         ret = ieee80211_if_change_type(sdata, type);
  81         if (ret)
  82                 return ret;
  83
  84         if (netif_running(sdata->dev))
  85                 return -EBUSY;
  86
  87         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
  88                 ieee80211_sdata_set_mesh_id(sdata,
  89                                             params->mesh_id_len,
  90                                             params->mesh_id);
  91
  92         if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
  93                 return 0;
  94
  95         sdata->u.mntr_flags = *flags;
  96         return 0;
  97 }
  98
  99 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 100                              u8 key_idx, const u8 *mac_addr,
 101                              struct key_params *params)
 102 {
 103         struct ieee80211_sub_if_data *sdata;
 104         struct sta_info *sta = NULL;
 105         enum ieee80211_key_alg alg;
 106         struct ieee80211_key *key;
 107         int err;
 108
 109         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 110
 111         switch (params->cipher) {
 112         case WLAN_CIPHER_SUITE_WEP40:
 113         case WLAN_CIPHER_SUITE_WEP104:
 114                 alg = ALG_WEP;
 115                 break;
 116         case WLAN_CIPHER_SUITE_TKIP:
 117                 alg = ALG_TKIP;
 118                 break;
 119         case WLAN_CIPHER_SUITE_CCMP:
 120                 alg = ALG_CCMP;
 121                 break;
 122         case WLAN_CIPHER_SUITE_AES_CMAC:
 123                 alg = ALG_AES_CMAC;
 124                 break;
 125         default:
 126                 return -EINVAL;
 127         }
 128
 129         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
 130                                   params->seq_len, params->seq);
 131         if (!key)
 132                 return -ENOMEM;
 133
 134         rcu_read_lock();
 135
 136         if (mac_addr) {
 137                 sta = sta_info_get(sdata->local, mac_addr);
 138                 if (!sta) {
 139                         ieee80211_key_free(key);
 140                         err = -ENOENT;
 141                         goto out_unlock;
 142                 }
 143         }
 144
 145         ieee80211_key_link(key, sdata, sta);
 146
 147         err = 0;
 148  out_unlock:
 149         rcu_read_unlock();
 150
 151         return err;
 152 }
 153
 154 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 155                              u8 key_idx, const u8 *mac_addr)
 156 {
 157         struct ieee80211_sub_if_data *sdata;
 158         struct sta_info *sta;
 159         int ret;
 160
 161         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 162
 163         rcu_read_lock();
 164
 165         if (mac_addr) {
 166                 ret = -ENOENT;
 167
 168                 sta = sta_info_get(sdata->local, mac_addr);
 169                 if (!sta)
 170                         goto out_unlock;
 171
 172                 if (sta->key) {
 173                         ieee80211_key_free(sta->key);
 174                         WARN_ON(sta->key);
 175                         ret = 0;
 176                 }
 177
 178                 goto out_unlock;
 179         }
 180
 181         if (!sdata->keys[key_idx]) {
 182                 ret = -ENOENT;
 183                 goto out_unlock;
 184         }
 185
 186         ieee80211_key_free(sdata->keys[key_idx]);
 187         WARN_ON(sdata->keys[key_idx]);
 188
 189         ret = 0;
 190  out_unlock:
 191         rcu_read_unlock();
 192
 193         return ret;
 194 }
 195
 196 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 197                              u8 key_idx, const u8 *mac_addr, void *cookie,
 198                              void (*callback)(void *cookie,
 199                                               struct key_params *params))
 200 {
 201         struct ieee80211_sub_if_data *sdata;
 202         struct sta_info *sta = NULL;
 203         u8 seq[6] = {0};
 204         struct key_params params;
 205         struct ieee80211_key *key;
 206         u32 iv32;
 207         u16 iv16;
 208         int err = -ENOENT;
 209
 210         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 211
 212         rcu_read_lock();
 213
 214         if (mac_addr) {
 215                 sta = sta_info_get(sdata->local, mac_addr);
 216                 if (!sta)
 217                         goto out;
 218
 219                 key = sta->key;
 220         } else
 221                 key = sdata->keys[key_idx];
 222
 223         if (!key)
 224                 goto out;
 225
 226         memset(&params, 0, sizeof(params));
 227
 228         switch (key->conf.alg) {
 229         case ALG_TKIP:
 230                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
 231
 232                 iv32 = key->u.tkip.tx.iv32;
 233                 iv16 = key->u.tkip.tx.iv16;
 234
 235                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 236                         drv_get_tkip_seq(sdata->local,
 237                                          key->conf.hw_key_idx,
 238                                          &iv32, &iv16);
 239
 240                 seq[0] = iv16 & 0xff;
 241                 seq[1] = (iv16 >> 8) & 0xff;
 242                 seq[2] = iv32 & 0xff;
 243                 seq[3] = (iv32 >> 8) & 0xff;
 244                 seq[4] = (iv32 >> 16) & 0xff;
 245                 seq[5] = (iv32 >> 24) & 0xff;
 246                 params.seq = seq;
 247                 params.seq_len = 6;
 248                 break;
 249         case ALG_CCMP:
 250                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
 251                 seq[0] = key->u.ccmp.tx_pn[5];
 252                 seq[1] = key->u.ccmp.tx_pn[4];
 253                 seq[2] = key->u.ccmp.tx_pn[3];
 254                 seq[3] = key->u.ccmp.tx_pn[2];
 255                 seq[4] = key->u.ccmp.tx_pn[1];
 256                 seq[5] = key->u.ccmp.tx_pn[0];
 257                 params.seq = seq;
 258                 params.seq_len = 6;
 259                 break;
 260         case ALG_WEP:
 261                 if (key->conf.keylen == 5)
 262                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
 263                 else
 264                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
 265                 break;
 266         case ALG_AES_CMAC:
 267                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 268                 seq[0] = key->u.aes_cmac.tx_pn[5];
 269                 seq[1] = key->u.aes_cmac.tx_pn[4];
 270                 seq[2] = key->u.aes_cmac.tx_pn[3];
 271                 seq[3] = key->u.aes_cmac.tx_pn[2];
 272                 seq[4] = key->u.aes_cmac.tx_pn[1];
 273                 seq[5] = key->u.aes_cmac.tx_pn[0];
 274                 params.seq = seq;
 275                 params.seq_len = 6;
 276                 break;
 277         }
 278
 279         params.key = key->conf.key;
 280         params.key_len = key->conf.keylen;
 281
 282         callback(cookie, &params);
 283         err = 0;
 284
 285  out:
 286         rcu_read_unlock();
 287         return err;
 288 }
 289
 290 static int ieee80211_config_default_key(struct wiphy *wiphy,
 291                                         struct net_device *dev,
 292                                         u8 key_idx)
 293 {
 294         struct ieee80211_sub_if_data *sdata;
 295
 296         rcu_read_lock();
 297
 298         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 299         ieee80211_set_default_key(sdata, key_idx);
 300
 301         rcu_read_unlock();
 302
 303         return 0;
 304 }
 305
 306 static int ieee80211_config_default_mgmt_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_mgmt_key(sdata, key_idx);
 316
 317         rcu_read_unlock();
 318
 319         return 0;
 320 }
 321
 322 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 323 {
 324         struct ieee80211_sub_if_data *sdata = sta->sdata;
 325
 326         sinfo->generation = sdata->local->sta_generation;
 327
 328         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 329                         STATION_INFO_RX_BYTES |
 330                         STATION_INFO_TX_BYTES |
 331                         STATION_INFO_RX_PACKETS |
 332                         STATION_INFO_TX_PACKETS |
 333                         STATION_INFO_TX_BITRATE;
 334
 335         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 336         sinfo->rx_bytes = sta->rx_bytes;
 337         sinfo->tx_bytes = sta->tx_bytes;
 338         sinfo->rx_packets = sta->rx_packets;
 339         sinfo->tx_packets = sta->tx_packets;
 340
 341         if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
 342                 sinfo->filled |= STATION_INFO_SIGNAL;
 343                 sinfo->signal = (s8)sta->last_signal;
 344         }
 345
 346         sinfo->txrate.flags = 0;
 347         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 348                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 349         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 350                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 351         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 352                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 353
 354         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 355                 struct ieee80211_supported_band *sband;
 356                 sband = sta->local->hw.wiphy->bands[
 357                                 sta->local->hw.conf.channel->band];
 358                 sinfo->txrate.legacy =
 359                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 360         } else
 361                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 362
 363         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 364 #ifdef CONFIG_MAC80211_MESH
 365                 sinfo->filled |= STATION_INFO_LLID |
 366                                  STATION_INFO_PLID |
 367                                  STATION_INFO_PLINK_STATE;
 368
 369                 sinfo->llid = le16_to_cpu(sta->llid);
 370                 sinfo->plid = le16_to_cpu(sta->plid);
 371                 sinfo->plink_state = sta->plink_state;
 372 #endif
 373         }
 374 }
 375
 376
 377 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 378                                  int idx, u8 *mac, struct station_info *sinfo)
 379 {
 380         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 381         struct sta_info *sta;
 382         int ret = -ENOENT;
 383
 384         rcu_read_lock();
 385
 386         sta = sta_info_get_by_idx(local, idx, dev);
 387         if (sta) {
 388                 ret = 0;
 389                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 390                 sta_set_sinfo(sta, sinfo);
 391         }
 392
 393         rcu_read_unlock();
 394
 395         return ret;
 396 }
 397
 398 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 399                                  u8 *mac, struct station_info *sinfo)
 400 {
 401         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 402         struct sta_info *sta;
 403         int ret = -ENOENT;
 404
 405         rcu_read_lock();
 406
 407         /* XXX: verify sta->dev == dev */
 408
 409         sta = sta_info_get(local, mac);
 410         if (sta) {
 411                 ret = 0;
 412                 sta_set_sinfo(sta, sinfo);
 413         }
 414
 415         rcu_read_unlock();
 416
 417         return ret;
 418 }
 419
 420 /*
 421  * This handles both adding a beacon and setting new beacon info
 422  */
 423 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 424                                    struct beacon_parameters *params)
 425 {
 426         struct beacon_data *new, *old;
 427         int new_head_len, new_tail_len;
 428         int size;
 429         int err = -EINVAL;
 430
 431         old = sdata->u.ap.beacon;
 432
 433         /* head must not be zero-length */
 434         if (params->head && !params->head_len)
 435                 return -EINVAL;
 436
 437         /*
 438          * This is a kludge. beacon interval should really be part
 439          * of the beacon information.
 440          */
 441         if (params->interval &&
 442             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 443                 sdata->vif.bss_conf.beacon_int = params->interval;
 444                 ieee80211_bss_info_change_notify(sdata,
 445                                                  BSS_CHANGED_BEACON_INT);
 446         }
 447
 448         /* Need to have a beacon head if we don't have one yet */
 449         if (!params->head && !old)
 450                 return err;
 451
 452         /* sorry, no way to start beaconing without dtim period */
 453         if (!params->dtim_period && !old)
 454                 return err;
 455
 456         /* new or old head? */
 457         if (params->head)
 458                 new_head_len = params->head_len;
 459         else
 460                 new_head_len = old->head_len;
 461
 462         /* new or old tail? */
 463         if (params->tail || !old)
 464                 /* params->tail_len will be zero for !params->tail */
 465                 new_tail_len = params->tail_len;
 466         else
 467                 new_tail_len = old->tail_len;
 468
 469         size = sizeof(*new) + new_head_len + new_tail_len;
 470
 471         new = kzalloc(size, GFP_KERNEL);
 472         if (!new)
 473                 return -ENOMEM;
 474
 475         /* start filling the new info now */
 476
 477         /* new or old dtim period? */
 478         if (params->dtim_period)
 479                 new->dtim_period = params->dtim_period;
 480         else
 481                 new->dtim_period = old->dtim_period;
 482
 483         /*
 484          * pointers go into the block we allocated,
 485          * memory is | beacon_data | head | tail |
 486          */
 487         new->head = ((u8 *) new) + sizeof(*new);
 488         new->tail = new->head + new_head_len;
 489         new->head_len = new_head_len;
 490         new->tail_len = new_tail_len;
 491
 492         /* copy in head */
 493         if (params->head)
 494                 memcpy(new->head, params->head, new_head_len);
 495         else
 496                 memcpy(new->head, old->head, new_head_len);
 497
 498         /* copy in optional tail */
 499         if (params->tail)
 500                 memcpy(new->tail, params->tail, new_tail_len);
 501         else
 502                 if (old)
 503                         memcpy(new->tail, old->tail, new_tail_len);
 504
 505         rcu_assign_pointer(sdata->u.ap.beacon, new);
 506
 507         synchronize_rcu();
 508
 509         kfree(old);
 510
 511         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 512                                                 BSS_CHANGED_BEACON);
 513         return 0;
 514 }
 515
 516 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 517                                 struct beacon_parameters *params)
 518 {
 519         struct ieee80211_sub_if_data *sdata;
 520         struct beacon_data *old;
 521
 522         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 523
 524         old = sdata->u.ap.beacon;
 525
 526         if (old)
 527                 return -EALREADY;
 528
 529         return ieee80211_config_beacon(sdata, params);
 530 }
 531
 532 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 533                                 struct beacon_parameters *params)
 534 {
 535         struct ieee80211_sub_if_data *sdata;
 536         struct beacon_data *old;
 537
 538         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 539
 540         old = sdata->u.ap.beacon;
 541
 542         if (!old)
 543                 return -ENOENT;
 544
 545         return ieee80211_config_beacon(sdata, params);
 546 }
 547
 548 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 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         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 561         synchronize_rcu();
 562         kfree(old);
 563
 564         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 565         return 0;
 566 }
 567
 568 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 569 struct iapp_layer2_update {
 570         u8 da[ETH_ALEN];        /* broadcast */
 571         u8 sa[ETH_ALEN];        /* STA addr */
 572         __be16 len;             /* 6 */
 573         u8 dsap;                /* 0 */
 574         u8 ssap;                /* 0 */
 575         u8 control;
 576         u8 xid_info[3];
 577 } __attribute__ ((packed));
 578
 579 static void ieee80211_send_layer2_update(struct sta_info *sta)
 580 {
 581         struct iapp_layer2_update *msg;
 582         struct sk_buff *skb;
 583
 584         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 585          * bridge devices */
 586
 587         skb = dev_alloc_skb(sizeof(*msg));
 588         if (!skb)
 589                 return;
 590         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 591
 592         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 593          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 594
 595         memset(msg->da, 0xff, ETH_ALEN);
 596         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 597         msg->len = htons(6);
 598         msg->dsap = 0;
 599         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 600         msg->control = 0xaf;    /* XID response lsb.1111F101.
 601                                  * F=0 (no poll command; unsolicited frame) */
 602         msg->xid_info[0] = 0x81;        /* XID format identifier */
 603         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 604         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 605
 606         skb->dev = sta->sdata->dev;
 607         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 608         memset(skb->cb, 0, sizeof(skb->cb));
 609         netif_rx(skb);
 610 }
 611
 612 static void sta_apply_parameters(struct ieee80211_local *local,
 613                                  struct sta_info *sta,
 614                                  struct station_parameters *params)
 615 {
 616         u32 rates;
 617         int i, j;
 618         struct ieee80211_supported_band *sband;
 619         struct ieee80211_sub_if_data *sdata = sta->sdata;
 620         u32 mask, set;
 621
 622         sband = local->hw.wiphy->bands[local->oper_channel->band];
 623
 624         spin_lock_bh(&sta->lock);
 625         mask = params->sta_flags_mask;
 626         set = params->sta_flags_set;
 627
 628         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 629                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 630                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 631                         sta->flags |= WLAN_STA_AUTHORIZED;
 632         }
 633
 634         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 635                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 636                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 637                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 638         }
 639
 640         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 641                 sta->flags &= ~WLAN_STA_WME;
 642                 if (set & BIT(NL80211_STA_FLAG_WME))
 643                         sta->flags |= WLAN_STA_WME;
 644         }
 645
 646         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 647                 sta->flags &= ~WLAN_STA_MFP;
 648                 if (set & BIT(NL80211_STA_FLAG_MFP))
 649                         sta->flags |= WLAN_STA_MFP;
 650         }
 651         spin_unlock_bh(&sta->lock);
 652
 653         /*
 654          * cfg80211 validates this (1-2007) and allows setting the AID
 655          * only when creating a new station entry
 656          */
 657         if (params->aid)
 658                 sta->sta.aid = params->aid;
 659
 660         /*
 661          * FIXME: updating the following information is racy when this
 662          *        function is called from ieee80211_change_station().
 663          *        However, all this information should be static so
 664          *        maybe we should just reject attemps to change it.
 665          */
 666
 667         if (params->listen_interval >= 0)
 668                 sta->listen_interval = params->listen_interval;
 669
 670         if (params->supported_rates) {
 671                 rates = 0;
 672
 673                 for (i = 0; i < params->supported_rates_len; i++) {
 674                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 675                         for (j = 0; j < sband->n_bitrates; j++) {
 676                                 if (sband->bitrates[j].bitrate == rate)
 677                                         rates |= BIT(j);
 678                         }
 679                 }
 680                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 681         }
 682
 683         if (params->ht_capa)
 684                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 685                                                   params->ht_capa,
 686                                                   &sta->sta.ht_cap);
 687
 688         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 689                 switch (params->plink_action) {
 690                 case PLINK_ACTION_OPEN:
 691                         mesh_plink_open(sta);
 692                         break;
 693                 case PLINK_ACTION_BLOCK:
 694                         mesh_plink_block(sta);
 695                         break;
 696                 }
 697         }
 698 }
 699
 700 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 701                                  u8 *mac, struct station_parameters *params)
 702 {
 703         struct ieee80211_local *local = wiphy_priv(wiphy);
 704         struct sta_info *sta;
 705         struct ieee80211_sub_if_data *sdata;
 706         int err;
 707         int layer2_update;
 708
 709         if (params->vlan) {
 710                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 711
 712                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 713                     sdata->vif.type != NL80211_IFTYPE_AP)
 714                         return -EINVAL;
 715         } else
 716                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 717
 718         if (compare_ether_addr(mac, dev->dev_addr) == 0)
 719                 return -EINVAL;
 720
 721         if (is_multicast_ether_addr(mac))
 722                 return -EINVAL;
 723
 724         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 725         if (!sta)
 726                 return -ENOMEM;
 727
 728         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 729
 730         sta_apply_parameters(local, sta, params);
 731
 732         rate_control_rate_init(sta);
 733
 734         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 735                 sdata->vif.type == NL80211_IFTYPE_AP;
 736
 737         rcu_read_lock();
 738
 739         err = sta_info_insert(sta);
 740         if (err) {
 741                 /* STA has been freed */
 742                 if (err == -EEXIST && layer2_update) {
 743                         /* Need to update layer 2 devices on reassociation */
 744                         sta = sta_info_get(local, mac);
 745                         if (sta)
 746                                 ieee80211_send_layer2_update(sta);
 747                 }
 748                 rcu_read_unlock();
 749                 return err;
 750         }
 751
 752         if (layer2_update)
 753                 ieee80211_send_layer2_update(sta);
 754
 755         rcu_read_unlock();
 756
 757         return 0;
 758 }
 759
 760 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 761                                  u8 *mac)
 762 {
 763         struct ieee80211_local *local = wiphy_priv(wiphy);
 764         struct ieee80211_sub_if_data *sdata;
 765         struct sta_info *sta;
 766
 767         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 768
 769         if (mac) {
 770                 rcu_read_lock();
 771
 772                 /* XXX: get sta belonging to dev */
 773                 sta = sta_info_get(local, mac);
 774                 if (!sta) {
 775                         rcu_read_unlock();
 776                         return -ENOENT;
 777                 }
 778
 779                 sta_info_unlink(&sta);
 780                 rcu_read_unlock();
 781
 782                 sta_info_destroy(sta);
 783         } else
 784                 sta_info_flush(local, sdata);
 785
 786         return 0;
 787 }
 788
 789 static int ieee80211_change_station(struct wiphy *wiphy,
 790                                     struct net_device *dev,
 791                                     u8 *mac,
 792                                     struct station_parameters *params)
 793 {
 794         struct ieee80211_local *local = wiphy_priv(wiphy);
 795         struct sta_info *sta;
 796         struct ieee80211_sub_if_data *vlansdata;
 797
 798         rcu_read_lock();
 799
 800         /* XXX: get sta belonging to dev */
 801         sta = sta_info_get(local, mac);
 802         if (!sta) {
 803                 rcu_read_unlock();
 804                 return -ENOENT;
 805         }
 806
 807         if (params->vlan && params->vlan != sta->sdata->dev) {
 808                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 809
 810                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 811                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 812                         rcu_read_unlock();
 813                         return -EINVAL;
 814                 }
 815
 816                 sta->sdata = vlansdata;
 817                 ieee80211_send_layer2_update(sta);
 818         }
 819
 820         sta_apply_parameters(local, sta, params);
 821
 822         rcu_read_unlock();
 823
 824         return 0;
 825 }
 826
 827 #ifdef CONFIG_MAC80211_MESH
 828 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 829                                  u8 *dst, u8 *next_hop)
 830 {
 831         struct ieee80211_local *local = wiphy_priv(wiphy);
 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(local, 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_local *local = wiphy_priv(wiphy);
 880         struct ieee80211_sub_if_data *sdata;
 881         struct mesh_path *mpath;
 882         struct sta_info *sta;
 883
 884         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 885
 886         rcu_read_lock();
 887
 888         sta = sta_info_get(local, next_hop);
 889         if (!sta) {
 890                 rcu_read_unlock();
 891                 return -ENOENT;
 892         }
 893
 894         mpath = mesh_path_lookup(dst, sdata);
 895         if (!mpath) {
 896                 rcu_read_unlock();
 897                 return -ENOENT;
 898         }
 899
 900         mesh_path_fix_nexthop(mpath, sta);
 901
 902         rcu_read_unlock();
 903         return 0;
 904 }
 905
 906 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 907                             struct mpath_info *pinfo)
 908 {
 909         if (mpath->next_hop)
 910                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 911         else
 912                 memset(next_hop, 0, ETH_ALEN);
 913
 914         pinfo->generation = mesh_paths_generation;
 915
 916         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 917                         MPATH_INFO_DSN |
 918                         MPATH_INFO_METRIC |
 919                         MPATH_INFO_EXPTIME |
 920                         MPATH_INFO_DISCOVERY_TIMEOUT |
 921                         MPATH_INFO_DISCOVERY_RETRIES |
 922                         MPATH_INFO_FLAGS;
 923
 924         pinfo->frame_qlen = mpath->frame_queue.qlen;
 925         pinfo->dsn = mpath->dsn;
 926         pinfo->metric = mpath->metric;
 927         if (time_before(jiffies, mpath->exp_time))
 928                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 929         pinfo->discovery_timeout =
 930                         jiffies_to_msecs(mpath->discovery_timeout);
 931         pinfo->discovery_retries = mpath->discovery_retries;
 932         pinfo->flags = 0;
 933         if (mpath->flags & MESH_PATH_ACTIVE)
 934                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 935         if (mpath->flags & MESH_PATH_RESOLVING)
 936                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 937         if (mpath->flags & MESH_PATH_DSN_VALID)
 938                 pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID;
 939         if (mpath->flags & MESH_PATH_FIXED)
 940                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 941         if (mpath->flags & MESH_PATH_RESOLVING)
 942                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 943
 944         pinfo->flags = mpath->flags;
 945 }
 946
 947 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 948                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 949
 950 {
 951         struct ieee80211_sub_if_data *sdata;
 952         struct mesh_path *mpath;
 953
 954         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 955
 956         rcu_read_lock();
 957         mpath = mesh_path_lookup(dst, sdata);
 958         if (!mpath) {
 959                 rcu_read_unlock();
 960                 return -ENOENT;
 961         }
 962         memcpy(dst, mpath->dst, ETH_ALEN);
 963         mpath_set_pinfo(mpath, next_hop, pinfo);
 964         rcu_read_unlock();
 965         return 0;
 966 }
 967
 968 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 969                                  int idx, u8 *dst, u8 *next_hop,
 970                                  struct mpath_info *pinfo)
 971 {
 972         struct ieee80211_sub_if_data *sdata;
 973         struct mesh_path *mpath;
 974
 975         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 976
 977         rcu_read_lock();
 978         mpath = mesh_path_lookup_by_idx(idx, sdata);
 979         if (!mpath) {
 980                 rcu_read_unlock();
 981                 return -ENOENT;
 982         }
 983         memcpy(dst, mpath->dst, ETH_ALEN);
 984         mpath_set_pinfo(mpath, next_hop, pinfo);
 985         rcu_read_unlock();
 986         return 0;
 987 }
 988
 989 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
 990                                 struct net_device *dev,
 991                                 struct mesh_config *conf)
 992 {
 993         struct ieee80211_sub_if_data *sdata;
 994         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 995
 996         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
 997         return 0;
 998 }
 999
1000 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1001 {
1002         return (mask >> (parm-1)) & 0x1;
1003 }
1004
1005 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1006                                 struct net_device *dev,
1007                                 const struct mesh_config *nconf, u32 mask)
1008 {
1009         struct mesh_config *conf;
1010         struct ieee80211_sub_if_data *sdata;
1011         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1012
1013         /* Set the config options which we are interested in setting */
1014         conf = &(sdata->u.mesh.mshcfg);
1015         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1016                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1017         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1018                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1019         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1020                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1021         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1022                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1023         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1024                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1025         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1026                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1027         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1028                 conf->auto_open_plinks = nconf->auto_open_plinks;
1029         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1030                 conf->dot11MeshHWMPmaxPREQretries =
1031                         nconf->dot11MeshHWMPmaxPREQretries;
1032         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1033                 conf->path_refresh_time = nconf->path_refresh_time;
1034         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1035                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1036         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1037                 conf->dot11MeshHWMPactivePathTimeout =
1038                         nconf->dot11MeshHWMPactivePathTimeout;
1039         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1040                 conf->dot11MeshHWMPpreqMinInterval =
1041                         nconf->dot11MeshHWMPpreqMinInterval;
1042         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1043                            mask))
1044                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1045                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1046         return 0;
1047 }
1048
1049 #endif
1050
1051 static int ieee80211_change_bss(struct wiphy *wiphy,
1052                                 struct net_device *dev,
1053                                 struct bss_parameters *params)
1054 {
1055         struct ieee80211_sub_if_data *sdata;
1056         u32 changed = 0;
1057
1058         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1059
1060         if (params->use_cts_prot >= 0) {
1061                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1062                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1063         }
1064         if (params->use_short_preamble >= 0) {
1065                 sdata->vif.bss_conf.use_short_preamble =
1066                         params->use_short_preamble;
1067                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1068         }
1069         if (params->use_short_slot_time >= 0) {
1070                 sdata->vif.bss_conf.use_short_slot =
1071                         params->use_short_slot_time;
1072                 changed |= BSS_CHANGED_ERP_SLOT;
1073         }
1074
1075         if (params->basic_rates) {
1076                 int i, j;
1077                 u32 rates = 0;
1078                 struct ieee80211_local *local = wiphy_priv(wiphy);
1079                 struct ieee80211_supported_band *sband =
1080                         wiphy->bands[local->oper_channel->band];
1081
1082                 for (i = 0; i < params->basic_rates_len; i++) {
1083                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1084                         for (j = 0; j < sband->n_bitrates; j++) {
1085                                 if (sband->bitrates[j].bitrate == rate)
1086                                         rates |= BIT(j);
1087                         }
1088                 }
1089                 sdata->vif.bss_conf.basic_rates = rates;
1090                 changed |= BSS_CHANGED_BASIC_RATES;
1091         }
1092
1093         ieee80211_bss_info_change_notify(sdata, changed);
1094
1095         return 0;
1096 }
1097
1098 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1099                                     struct ieee80211_txq_params *params)
1100 {
1101         struct ieee80211_local *local = wiphy_priv(wiphy);
1102         struct ieee80211_tx_queue_params p;
1103
1104         if (!local->ops->conf_tx)
1105                 return -EOPNOTSUPP;
1106
1107         memset(&p, 0, sizeof(p));
1108         p.aifs = params->aifs;
1109         p.cw_max = params->cwmax;
1110         p.cw_min = params->cwmin;
1111         p.txop = params->txop;
1112         if (drv_conf_tx(local, params->queue, &p)) {
1113                 printk(KERN_DEBUG "%s: failed to set TX queue "
1114                        "parameters for queue %d\n",
1115                        wiphy_name(local->hw.wiphy), params->queue);
1116                 return -EINVAL;
1117         }
1118
1119         return 0;
1120 }
1121
1122 static int ieee80211_set_channel(struct wiphy *wiphy,
1123                                  struct ieee80211_channel *chan,
1124                                  enum nl80211_channel_type channel_type)
1125 {
1126         struct ieee80211_local *local = wiphy_priv(wiphy);
1127
1128         local->oper_channel = chan;
1129         local->oper_channel_type = channel_type;
1130
1131         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1132 }
1133
1134 #ifdef CONFIG_PM
1135 static int ieee80211_suspend(struct wiphy *wiphy)
1136 {
1137         return __ieee80211_suspend(wiphy_priv(wiphy));
1138 }
1139
1140 static int ieee80211_resume(struct wiphy *wiphy)
1141 {
1142         return __ieee80211_resume(wiphy_priv(wiphy));
1143 }
1144 #else
1145 #define ieee80211_suspend NULL
1146 #define ieee80211_resume NULL
1147 #endif
1148
1149 static int ieee80211_scan(struct wiphy *wiphy,
1150                           struct net_device *dev,
1151                           struct cfg80211_scan_request *req)
1152 {
1153         struct ieee80211_sub_if_data *sdata;
1154
1155         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1156
1157         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1158             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1159             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1160             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1161                 return -EOPNOTSUPP;
1162
1163         return ieee80211_request_scan(sdata, req);
1164 }
1165
1166 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1167                           struct cfg80211_auth_request *req)
1168 {
1169         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1170 }
1171
1172 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1173                            struct cfg80211_assoc_request *req)
1174 {
1175         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1176 }
1177
1178 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1179                             struct cfg80211_deauth_request *req,
1180                             void *cookie)
1181 {
1182         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1183                                     req, cookie);
1184 }
1185
1186 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1187                               struct cfg80211_disassoc_request *req,
1188                               void *cookie)
1189 {
1190         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1191                                       req, cookie);
1192 }
1193
1194 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1195                                struct cfg80211_ibss_params *params)
1196 {
1197         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1198
1199         return ieee80211_ibss_join(sdata, params);
1200 }
1201
1202 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1203 {
1204         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1205
1206         return ieee80211_ibss_leave(sdata);
1207 }
1208
1209 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1210 {
1211         struct ieee80211_local *local = wiphy_priv(wiphy);
1212         int err;
1213
1214         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1215                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1216
1217                 if (err)
1218                         return err;
1219         }
1220
1221         if (changed & WIPHY_PARAM_RETRY_SHORT)
1222                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1223         if (changed & WIPHY_PARAM_RETRY_LONG)
1224                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1225         if (changed &
1226             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1227                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1228
1229         return 0;
1230 }
1231
1232 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1233                                   enum tx_power_setting type, int dbm)
1234 {
1235         struct ieee80211_local *local = wiphy_priv(wiphy);
1236         struct ieee80211_channel *chan = local->hw.conf.channel;
1237         u32 changes = 0;
1238
1239         switch (type) {
1240         case TX_POWER_AUTOMATIC:
1241                 local->user_power_level = -1;
1242                 break;
1243         case TX_POWER_LIMITED:
1244                 if (dbm < 0)
1245                         return -EINVAL;
1246                 local->user_power_level = dbm;
1247                 break;
1248         case TX_POWER_FIXED:
1249                 if (dbm < 0)
1250                         return -EINVAL;
1251                 /* TODO: move to cfg80211 when it knows the channel */
1252                 if (dbm > chan->max_power)
1253                         return -EINVAL;
1254                 local->user_power_level = dbm;
1255                 break;
1256         }
1257
1258         ieee80211_hw_config(local, changes);
1259
1260         return 0;
1261 }
1262
1263 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1264 {
1265         struct ieee80211_local *local = wiphy_priv(wiphy);
1266
1267         *dbm = local->hw.conf.power_level;
1268
1269         return 0;
1270 }
1271
1272 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1273                                   u8 *addr)
1274 {
1275         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1276
1277         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1278
1279         return 0;
1280 }
1281
1282 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1283 {
1284         struct ieee80211_local *local = wiphy_priv(wiphy);
1285
1286         drv_rfkill_poll(local);
1287 }
1288
1289 #ifdef CONFIG_NL80211_TESTMODE
1290 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1291 {
1292         struct ieee80211_local *local = wiphy_priv(wiphy);
1293
1294         if (!local->ops->testmode_cmd)
1295                 return -EOPNOTSUPP;
1296
1297         return local->ops->testmode_cmd(&local->hw, data, len);
1298 }
1299 #endif
1300
1301 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1302                                     bool enabled, int timeout)
1303 {
1304         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1305         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1306         struct ieee80211_conf *conf = &local->hw.conf;
1307
1308         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1309                 return -EOPNOTSUPP;
1310
1311         if (enabled == sdata->u.mgd.powersave &&
1312             timeout == conf->dynamic_ps_timeout)
1313                 return 0;
1314
1315         sdata->u.mgd.powersave = enabled;
1316         conf->dynamic_ps_timeout = timeout;
1317
1318         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1319                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1320
1321         ieee80211_recalc_ps(local, -1);
1322
1323         return 0;
1324 }
1325
1326 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1327                                       struct net_device *dev,
1328                                       const u8 *addr,
1329                                       const struct cfg80211_bitrate_mask *mask)
1330 {
1331         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1332         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1333         int i, err = -EINVAL;
1334         u32 target_rate;
1335         struct ieee80211_supported_band *sband;
1336
1337         sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
1338
1339         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
1340          * target_rate = X, rate->fixed = 1 means only rate X
1341          * target_rate = X, rate->fixed = 0 means all rates <= X */
1342         sdata->max_ratectrl_rateidx = -1;
1343         sdata->force_unicast_rateidx = -1;
1344
1345         if (mask->fixed)
1346                 target_rate = mask->fixed / 100;
1347         else if (mask->maxrate)
1348                 target_rate = mask->maxrate / 100;
1349         else
1350                 return 0;
1351
1352         for (i=0; i< sband->n_bitrates; i++) {
1353                 struct ieee80211_rate *brate = &sband->bitrates[i];
1354                 int this_rate = brate->bitrate;
1355
1356                 if (target_rate == this_rate) {
1357                         sdata->max_ratectrl_rateidx = i;
1358                         if (mask->fixed)
1359                                 sdata->force_unicast_rateidx = i;
1360                         err = 0;
1361                         break;
1362                 }
1363         }
1364
1365         return err;
1366 }
1367
1368 struct cfg80211_ops mac80211_config_ops = {
1369         .add_virtual_intf = ieee80211_add_iface,
1370         .del_virtual_intf = ieee80211_del_iface,
1371         .change_virtual_intf = ieee80211_change_iface,
1372         .add_key = ieee80211_add_key,
1373         .del_key = ieee80211_del_key,
1374         .get_key = ieee80211_get_key,
1375         .set_default_key = ieee80211_config_default_key,
1376         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1377         .add_beacon = ieee80211_add_beacon,
1378         .set_beacon = ieee80211_set_beacon,
1379         .del_beacon = ieee80211_del_beacon,
1380         .add_station = ieee80211_add_station,
1381         .del_station = ieee80211_del_station,
1382         .change_station = ieee80211_change_station,
1383         .get_station = ieee80211_get_station,
1384         .dump_station = ieee80211_dump_station,
1385 #ifdef CONFIG_MAC80211_MESH
1386         .add_mpath = ieee80211_add_mpath,
1387         .del_mpath = ieee80211_del_mpath,
1388         .change_mpath = ieee80211_change_mpath,
1389         .get_mpath = ieee80211_get_mpath,
1390         .dump_mpath = ieee80211_dump_mpath,
1391         .set_mesh_params = ieee80211_set_mesh_params,
1392         .get_mesh_params = ieee80211_get_mesh_params,
1393 #endif
1394         .change_bss = ieee80211_change_bss,
1395         .set_txq_params = ieee80211_set_txq_params,
1396         .set_channel = ieee80211_set_channel,
1397         .suspend = ieee80211_suspend,
1398         .resume = ieee80211_resume,
1399         .scan = ieee80211_scan,
1400         .auth = ieee80211_auth,
1401         .assoc = ieee80211_assoc,
1402         .deauth = ieee80211_deauth,
1403         .disassoc = ieee80211_disassoc,
1404         .join_ibss = ieee80211_join_ibss,
1405         .leave_ibss = ieee80211_leave_ibss,
1406         .set_wiphy_params = ieee80211_set_wiphy_params,
1407         .set_tx_power = ieee80211_set_tx_power,
1408         .get_tx_power = ieee80211_get_tx_power,
1409         .set_wds_peer = ieee80211_set_wds_peer,
1410         .rfkill_poll = ieee80211_rfkill_poll,
1411         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1412         .set_power_mgmt = ieee80211_set_power_mgmt,
1413         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1414 };