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                 rcu_read_unlock();
 742                 return err;
 743         }
 744
 745         if (layer2_update)
 746                 ieee80211_send_layer2_update(sta);
 747
 748         rcu_read_unlock();
 749
 750         return 0;
 751 }
 752
 753 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 754                                  u8 *mac)
 755 {
 756         struct ieee80211_local *local = wiphy_priv(wiphy);
 757         struct ieee80211_sub_if_data *sdata;
 758         struct sta_info *sta;
 759
 760         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 761
 762         if (mac) {
 763                 rcu_read_lock();
 764
 765                 /* XXX: get sta belonging to dev */
 766                 sta = sta_info_get(local, mac);
 767                 if (!sta) {
 768                         rcu_read_unlock();
 769                         return -ENOENT;
 770                 }
 771
 772                 sta_info_unlink(&sta);
 773                 rcu_read_unlock();
 774
 775                 sta_info_destroy(sta);
 776         } else
 777                 sta_info_flush(local, sdata);
 778
 779         return 0;
 780 }
 781
 782 static int ieee80211_change_station(struct wiphy *wiphy,
 783                                     struct net_device *dev,
 784                                     u8 *mac,
 785                                     struct station_parameters *params)
 786 {
 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         /* XXX: get sta belonging to dev */
 794         sta = sta_info_get(local, mac);
 795         if (!sta) {
 796                 rcu_read_unlock();
 797                 return -ENOENT;
 798         }
 799
 800         if (params->vlan && params->vlan != sta->sdata->dev) {
 801                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 802
 803                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 804                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 805                         rcu_read_unlock();
 806                         return -EINVAL;
 807                 }
 808
 809                 sta->sdata = vlansdata;
 810                 ieee80211_send_layer2_update(sta);
 811         }
 812
 813         sta_apply_parameters(local, sta, params);
 814
 815         rcu_read_unlock();
 816
 817         return 0;
 818 }
 819
 820 #ifdef CONFIG_MAC80211_MESH
 821 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 822                                  u8 *dst, u8 *next_hop)
 823 {
 824         struct ieee80211_local *local = wiphy_priv(wiphy);
 825         struct ieee80211_sub_if_data *sdata;
 826         struct mesh_path *mpath;
 827         struct sta_info *sta;
 828         int err;
 829
 830         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 831
 832         rcu_read_lock();
 833         sta = sta_info_get(local, next_hop);
 834         if (!sta) {
 835                 rcu_read_unlock();
 836                 return -ENOENT;
 837         }
 838
 839         err = mesh_path_add(dst, sdata);
 840         if (err) {
 841                 rcu_read_unlock();
 842                 return err;
 843         }
 844
 845         mpath = mesh_path_lookup(dst, sdata);
 846         if (!mpath) {
 847                 rcu_read_unlock();
 848                 return -ENXIO;
 849         }
 850         mesh_path_fix_nexthop(mpath, sta);
 851
 852         rcu_read_unlock();
 853         return 0;
 854 }
 855
 856 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 857                                  u8 *dst)
 858 {
 859         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 860
 861         if (dst)
 862                 return mesh_path_del(dst, sdata);
 863
 864         mesh_path_flush(sdata);
 865         return 0;
 866 }
 867
 868 static int ieee80211_change_mpath(struct wiphy *wiphy,
 869                                     struct net_device *dev,
 870                                     u8 *dst, u8 *next_hop)
 871 {
 872         struct ieee80211_local *local = wiphy_priv(wiphy);
 873         struct ieee80211_sub_if_data *sdata;
 874         struct mesh_path *mpath;
 875         struct sta_info *sta;
 876
 877         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 878
 879         rcu_read_lock();
 880
 881         sta = sta_info_get(local, next_hop);
 882         if (!sta) {
 883                 rcu_read_unlock();
 884                 return -ENOENT;
 885         }
 886
 887         mpath = mesh_path_lookup(dst, sdata);
 888         if (!mpath) {
 889                 rcu_read_unlock();
 890                 return -ENOENT;
 891         }
 892
 893         mesh_path_fix_nexthop(mpath, sta);
 894
 895         rcu_read_unlock();
 896         return 0;
 897 }
 898
 899 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 900                             struct mpath_info *pinfo)
 901 {
 902         if (mpath->next_hop)
 903                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 904         else
 905                 memset(next_hop, 0, ETH_ALEN);
 906
 907         pinfo->generation = mesh_paths_generation;
 908
 909         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 910                         MPATH_INFO_DSN |
 911                         MPATH_INFO_METRIC |
 912                         MPATH_INFO_EXPTIME |
 913                         MPATH_INFO_DISCOVERY_TIMEOUT |
 914                         MPATH_INFO_DISCOVERY_RETRIES |
 915                         MPATH_INFO_FLAGS;
 916
 917         pinfo->frame_qlen = mpath->frame_queue.qlen;
 918         pinfo->dsn = mpath->dsn;
 919         pinfo->metric = mpath->metric;
 920         if (time_before(jiffies, mpath->exp_time))
 921                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 922         pinfo->discovery_timeout =
 923                         jiffies_to_msecs(mpath->discovery_timeout);
 924         pinfo->discovery_retries = mpath->discovery_retries;
 925         pinfo->flags = 0;
 926         if (mpath->flags & MESH_PATH_ACTIVE)
 927                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 928         if (mpath->flags & MESH_PATH_RESOLVING)
 929                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 930         if (mpath->flags & MESH_PATH_DSN_VALID)
 931                 pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID;
 932         if (mpath->flags & MESH_PATH_FIXED)
 933                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 934         if (mpath->flags & MESH_PATH_RESOLVING)
 935                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 936
 937         pinfo->flags = mpath->flags;
 938 }
 939
 940 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 941                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 942
 943 {
 944         struct ieee80211_sub_if_data *sdata;
 945         struct mesh_path *mpath;
 946
 947         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 948
 949         rcu_read_lock();
 950         mpath = mesh_path_lookup(dst, sdata);
 951         if (!mpath) {
 952                 rcu_read_unlock();
 953                 return -ENOENT;
 954         }
 955         memcpy(dst, mpath->dst, ETH_ALEN);
 956         mpath_set_pinfo(mpath, next_hop, pinfo);
 957         rcu_read_unlock();
 958         return 0;
 959 }
 960
 961 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 962                                  int idx, u8 *dst, u8 *next_hop,
 963                                  struct mpath_info *pinfo)
 964 {
 965         struct ieee80211_sub_if_data *sdata;
 966         struct mesh_path *mpath;
 967
 968         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 969
 970         rcu_read_lock();
 971         mpath = mesh_path_lookup_by_idx(idx, sdata);
 972         if (!mpath) {
 973                 rcu_read_unlock();
 974                 return -ENOENT;
 975         }
 976         memcpy(dst, mpath->dst, ETH_ALEN);
 977         mpath_set_pinfo(mpath, next_hop, pinfo);
 978         rcu_read_unlock();
 979         return 0;
 980 }
 981
 982 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
 983                                 struct net_device *dev,
 984                                 struct mesh_config *conf)
 985 {
 986         struct ieee80211_sub_if_data *sdata;
 987         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 988
 989         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
 990         return 0;
 991 }
 992
 993 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
 994 {
 995         return (mask >> (parm-1)) & 0x1;
 996 }
 997
 998 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
 999                                 struct net_device *dev,
1000                                 const struct mesh_config *nconf, u32 mask)
1001 {
1002         struct mesh_config *conf;
1003         struct ieee80211_sub_if_data *sdata;
1004         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1005
1006         /* Set the config options which we are interested in setting */
1007         conf = &(sdata->u.mesh.mshcfg);
1008         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1009                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1010         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1011                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1012         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1013                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1014         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1015                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1016         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1017                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1018         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1019                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1020         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1021                 conf->auto_open_plinks = nconf->auto_open_plinks;
1022         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1023                 conf->dot11MeshHWMPmaxPREQretries =
1024                         nconf->dot11MeshHWMPmaxPREQretries;
1025         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1026                 conf->path_refresh_time = nconf->path_refresh_time;
1027         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1028                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1029         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1030                 conf->dot11MeshHWMPactivePathTimeout =
1031                         nconf->dot11MeshHWMPactivePathTimeout;
1032         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1033                 conf->dot11MeshHWMPpreqMinInterval =
1034                         nconf->dot11MeshHWMPpreqMinInterval;
1035         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1036                            mask))
1037                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1038                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1039         return 0;
1040 }
1041
1042 #endif
1043
1044 static int ieee80211_change_bss(struct wiphy *wiphy,
1045                                 struct net_device *dev,
1046                                 struct bss_parameters *params)
1047 {
1048         struct ieee80211_sub_if_data *sdata;
1049         u32 changed = 0;
1050
1051         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1052
1053         if (params->use_cts_prot >= 0) {
1054                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1055                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1056         }
1057         if (params->use_short_preamble >= 0) {
1058                 sdata->vif.bss_conf.use_short_preamble =
1059                         params->use_short_preamble;
1060                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1061         }
1062         if (params->use_short_slot_time >= 0) {
1063                 sdata->vif.bss_conf.use_short_slot =
1064                         params->use_short_slot_time;
1065                 changed |= BSS_CHANGED_ERP_SLOT;
1066         }
1067
1068         if (params->basic_rates) {
1069                 int i, j;
1070                 u32 rates = 0;
1071                 struct ieee80211_local *local = wiphy_priv(wiphy);
1072                 struct ieee80211_supported_band *sband =
1073                         wiphy->bands[local->oper_channel->band];
1074
1075                 for (i = 0; i < params->basic_rates_len; i++) {
1076                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1077                         for (j = 0; j < sband->n_bitrates; j++) {
1078                                 if (sband->bitrates[j].bitrate == rate)
1079                                         rates |= BIT(j);
1080                         }
1081                 }
1082                 sdata->vif.bss_conf.basic_rates = rates;
1083                 changed |= BSS_CHANGED_BASIC_RATES;
1084         }
1085
1086         ieee80211_bss_info_change_notify(sdata, changed);
1087
1088         return 0;
1089 }
1090
1091 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1092                                     struct ieee80211_txq_params *params)
1093 {
1094         struct ieee80211_local *local = wiphy_priv(wiphy);
1095         struct ieee80211_tx_queue_params p;
1096
1097         if (!local->ops->conf_tx)
1098                 return -EOPNOTSUPP;
1099
1100         memset(&p, 0, sizeof(p));
1101         p.aifs = params->aifs;
1102         p.cw_max = params->cwmax;
1103         p.cw_min = params->cwmin;
1104         p.txop = params->txop;
1105         if (drv_conf_tx(local, params->queue, &p)) {
1106                 printk(KERN_DEBUG "%s: failed to set TX queue "
1107                        "parameters for queue %d\n",
1108                        wiphy_name(local->hw.wiphy), params->queue);
1109                 return -EINVAL;
1110         }
1111
1112         return 0;
1113 }
1114
1115 static int ieee80211_set_channel(struct wiphy *wiphy,
1116                                  struct ieee80211_channel *chan,
1117                                  enum nl80211_channel_type channel_type)
1118 {
1119         struct ieee80211_local *local = wiphy_priv(wiphy);
1120
1121         local->oper_channel = chan;
1122         local->oper_channel_type = channel_type;
1123
1124         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1125 }
1126
1127 #ifdef CONFIG_PM
1128 static int ieee80211_suspend(struct wiphy *wiphy)
1129 {
1130         return __ieee80211_suspend(wiphy_priv(wiphy));
1131 }
1132
1133 static int ieee80211_resume(struct wiphy *wiphy)
1134 {
1135         return __ieee80211_resume(wiphy_priv(wiphy));
1136 }
1137 #else
1138 #define ieee80211_suspend NULL
1139 #define ieee80211_resume NULL
1140 #endif
1141
1142 static int ieee80211_scan(struct wiphy *wiphy,
1143                           struct net_device *dev,
1144                           struct cfg80211_scan_request *req)
1145 {
1146         struct ieee80211_sub_if_data *sdata;
1147
1148         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1149
1150         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1151             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1152             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1153             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1154                 return -EOPNOTSUPP;
1155
1156         return ieee80211_request_scan(sdata, req);
1157 }
1158
1159 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1160                           struct cfg80211_auth_request *req)
1161 {
1162         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1163 }
1164
1165 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1166                            struct cfg80211_assoc_request *req)
1167 {
1168         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1169 }
1170
1171 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1172                             struct cfg80211_deauth_request *req,
1173                             void *cookie)
1174 {
1175         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1176                                     req, cookie);
1177 }
1178
1179 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1180                               struct cfg80211_disassoc_request *req,
1181                               void *cookie)
1182 {
1183         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1184                                       req, cookie);
1185 }
1186
1187 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1188                                struct cfg80211_ibss_params *params)
1189 {
1190         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1191
1192         return ieee80211_ibss_join(sdata, params);
1193 }
1194
1195 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1196 {
1197         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1198
1199         return ieee80211_ibss_leave(sdata);
1200 }
1201
1202 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1203 {
1204         struct ieee80211_local *local = wiphy_priv(wiphy);
1205         int err;
1206
1207         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1208                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1209
1210                 if (err)
1211                         return err;
1212         }
1213
1214         if (changed & WIPHY_PARAM_RETRY_SHORT)
1215                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1216         if (changed & WIPHY_PARAM_RETRY_LONG)
1217                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1218         if (changed &
1219             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1220                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1221
1222         return 0;
1223 }
1224
1225 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1226                                   enum tx_power_setting type, int dbm)
1227 {
1228         struct ieee80211_local *local = wiphy_priv(wiphy);
1229         struct ieee80211_channel *chan = local->hw.conf.channel;
1230         u32 changes = 0;
1231
1232         switch (type) {
1233         case TX_POWER_AUTOMATIC:
1234                 local->user_power_level = -1;
1235                 break;
1236         case TX_POWER_LIMITED:
1237                 if (dbm < 0)
1238                         return -EINVAL;
1239                 local->user_power_level = dbm;
1240                 break;
1241         case TX_POWER_FIXED:
1242                 if (dbm < 0)
1243                         return -EINVAL;
1244                 /* TODO: move to cfg80211 when it knows the channel */
1245                 if (dbm > chan->max_power)
1246                         return -EINVAL;
1247                 local->user_power_level = dbm;
1248                 break;
1249         }
1250
1251         ieee80211_hw_config(local, changes);
1252
1253         return 0;
1254 }
1255
1256 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1257 {
1258         struct ieee80211_local *local = wiphy_priv(wiphy);
1259
1260         *dbm = local->hw.conf.power_level;
1261
1262         return 0;
1263 }
1264
1265 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1266                                   u8 *addr)
1267 {
1268         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1269
1270         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1271
1272         return 0;
1273 }
1274
1275 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1276 {
1277         struct ieee80211_local *local = wiphy_priv(wiphy);
1278
1279         drv_rfkill_poll(local);
1280 }
1281
1282 #ifdef CONFIG_NL80211_TESTMODE
1283 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1284 {
1285         struct ieee80211_local *local = wiphy_priv(wiphy);
1286
1287         if (!local->ops->testmode_cmd)
1288                 return -EOPNOTSUPP;
1289
1290         return local->ops->testmode_cmd(&local->hw, data, len);
1291 }
1292 #endif
1293
1294 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1295                                     bool enabled, int timeout)
1296 {
1297         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1298         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1299         struct ieee80211_conf *conf = &local->hw.conf;
1300
1301         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1302                 return -EOPNOTSUPP;
1303
1304         if (enabled == sdata->u.mgd.powersave &&
1305             timeout == conf->dynamic_ps_timeout)
1306                 return 0;
1307
1308         sdata->u.mgd.powersave = enabled;
1309         conf->dynamic_ps_timeout = timeout;
1310
1311         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1312                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1313
1314         ieee80211_recalc_ps(local, -1);
1315
1316         return 0;
1317 }
1318
1319 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1320                                       struct net_device *dev,
1321                                       const u8 *addr,
1322                                       const struct cfg80211_bitrate_mask *mask)
1323 {
1324         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1325         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1326         int i, err = -EINVAL;
1327         u32 target_rate;
1328         struct ieee80211_supported_band *sband;
1329
1330         sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
1331
1332         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
1333          * target_rate = X, rate->fixed = 1 means only rate X
1334          * target_rate = X, rate->fixed = 0 means all rates <= X */
1335         sdata->max_ratectrl_rateidx = -1;
1336         sdata->force_unicast_rateidx = -1;
1337
1338         if (mask->fixed)
1339                 target_rate = mask->fixed / 100;
1340         else if (mask->maxrate)
1341                 target_rate = mask->maxrate / 100;
1342         else
1343                 return 0;
1344
1345         for (i=0; i< sband->n_bitrates; i++) {
1346                 struct ieee80211_rate *brate = &sband->bitrates[i];
1347                 int this_rate = brate->bitrate;
1348
1349                 if (target_rate == this_rate) {
1350                         sdata->max_ratectrl_rateidx = i;
1351                         if (mask->fixed)
1352                                 sdata->force_unicast_rateidx = i;
1353                         err = 0;
1354                         break;
1355                 }
1356         }
1357
1358         return err;
1359 }
1360
1361 struct cfg80211_ops mac80211_config_ops = {
1362         .add_virtual_intf = ieee80211_add_iface,
1363         .del_virtual_intf = ieee80211_del_iface,
1364         .change_virtual_intf = ieee80211_change_iface,
1365         .add_key = ieee80211_add_key,
1366         .del_key = ieee80211_del_key,
1367         .get_key = ieee80211_get_key,
1368         .set_default_key = ieee80211_config_default_key,
1369         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1370         .add_beacon = ieee80211_add_beacon,
1371         .set_beacon = ieee80211_set_beacon,
1372         .del_beacon = ieee80211_del_beacon,
1373         .add_station = ieee80211_add_station,
1374         .del_station = ieee80211_del_station,
1375         .change_station = ieee80211_change_station,
1376         .get_station = ieee80211_get_station,
1377         .dump_station = ieee80211_dump_station,
1378 #ifdef CONFIG_MAC80211_MESH
1379         .add_mpath = ieee80211_add_mpath,
1380         .del_mpath = ieee80211_del_mpath,
1381         .change_mpath = ieee80211_change_mpath,
1382         .get_mpath = ieee80211_get_mpath,
1383         .dump_mpath = ieee80211_dump_mpath,
1384         .set_mesh_params = ieee80211_set_mesh_params,
1385         .get_mesh_params = ieee80211_get_mesh_params,
1386 #endif
1387         .change_bss = ieee80211_change_bss,
1388         .set_txq_params = ieee80211_set_txq_params,
1389         .set_channel = ieee80211_set_channel,
1390         .suspend = ieee80211_suspend,
1391         .resume = ieee80211_resume,
1392         .scan = ieee80211_scan,
1393         .auth = ieee80211_auth,
1394         .assoc = ieee80211_assoc,
1395         .deauth = ieee80211_deauth,
1396         .disassoc = ieee80211_disassoc,
1397         .join_ibss = ieee80211_join_ibss,
1398         .leave_ibss = ieee80211_leave_ibss,
1399         .set_wiphy_params = ieee80211_set_wiphy_params,
1400         .set_tx_power = ieee80211_set_tx_power,
1401         .get_tx_power = ieee80211_get_tx_power,
1402         .set_wds_peer = ieee80211_set_wds_peer,
1403         .rfkill_poll = ieee80211_rfkill_poll,
1404         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1405         .set_power_mgmt = ieee80211_set_power_mgmt,
1406         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1407 };