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 (netif_running(dev))
  76                 return -EBUSY;
  77
  78         if (!nl80211_type_check(type))
  79                 return -EINVAL;
  80
  81         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  82
  83         ret = ieee80211_if_change_type(sdata, type);
  84         if (ret)
  85                 return ret;
  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             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 343                 sinfo->filled |= STATION_INFO_SIGNAL;
 344                 sinfo->signal = (s8)sta->last_signal;
 345         }
 346
 347         sinfo->txrate.flags = 0;
 348         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 349                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 350         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 351                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 352         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 353                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 354
 355         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 356                 struct ieee80211_supported_band *sband;
 357                 sband = sta->local->hw.wiphy->bands[
 358                                 sta->local->hw.conf.channel->band];
 359                 sinfo->txrate.legacy =
 360                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 361         } else
 362                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 363
 364         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 365 #ifdef CONFIG_MAC80211_MESH
 366                 sinfo->filled |= STATION_INFO_LLID |
 367                                  STATION_INFO_PLID |
 368                                  STATION_INFO_PLINK_STATE;
 369
 370                 sinfo->llid = le16_to_cpu(sta->llid);
 371                 sinfo->plid = le16_to_cpu(sta->plid);
 372                 sinfo->plink_state = sta->plink_state;
 373 #endif
 374         }
 375 }
 376
 377
 378 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 379                                  int idx, u8 *mac, struct station_info *sinfo)
 380 {
 381         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 382         struct sta_info *sta;
 383         int ret = -ENOENT;
 384
 385         rcu_read_lock();
 386
 387         sta = sta_info_get_by_idx(local, idx, dev);
 388         if (sta) {
 389                 ret = 0;
 390                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 391                 sta_set_sinfo(sta, sinfo);
 392         }
 393
 394         rcu_read_unlock();
 395
 396         return ret;
 397 }
 398
 399 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 400                                  u8 *mac, struct station_info *sinfo)
 401 {
 402         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 403         struct sta_info *sta;
 404         int ret = -ENOENT;
 405
 406         rcu_read_lock();
 407
 408         /* XXX: verify sta->dev == dev */
 409
 410         sta = sta_info_get(local, mac);
 411         if (sta) {
 412                 ret = 0;
 413                 sta_set_sinfo(sta, sinfo);
 414         }
 415
 416         rcu_read_unlock();
 417
 418         return ret;
 419 }
 420
 421 /*
 422  * This handles both adding a beacon and setting new beacon info
 423  */
 424 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 425                                    struct beacon_parameters *params)
 426 {
 427         struct beacon_data *new, *old;
 428         int new_head_len, new_tail_len;
 429         int size;
 430         int err = -EINVAL;
 431
 432         old = sdata->u.ap.beacon;
 433
 434         /* head must not be zero-length */
 435         if (params->head && !params->head_len)
 436                 return -EINVAL;
 437
 438         /*
 439          * This is a kludge. beacon interval should really be part
 440          * of the beacon information.
 441          */
 442         if (params->interval &&
 443             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 444                 sdata->vif.bss_conf.beacon_int = params->interval;
 445                 ieee80211_bss_info_change_notify(sdata,
 446                                                  BSS_CHANGED_BEACON_INT);
 447         }
 448
 449         /* Need to have a beacon head if we don't have one yet */
 450         if (!params->head && !old)
 451                 return err;
 452
 453         /* sorry, no way to start beaconing without dtim period */
 454         if (!params->dtim_period && !old)
 455                 return err;
 456
 457         /* new or old head? */
 458         if (params->head)
 459                 new_head_len = params->head_len;
 460         else
 461                 new_head_len = old->head_len;
 462
 463         /* new or old tail? */
 464         if (params->tail || !old)
 465                 /* params->tail_len will be zero for !params->tail */
 466                 new_tail_len = params->tail_len;
 467         else
 468                 new_tail_len = old->tail_len;
 469
 470         size = sizeof(*new) + new_head_len + new_tail_len;
 471
 472         new = kzalloc(size, GFP_KERNEL);
 473         if (!new)
 474                 return -ENOMEM;
 475
 476         /* start filling the new info now */
 477
 478         /* new or old dtim period? */
 479         if (params->dtim_period)
 480                 new->dtim_period = params->dtim_period;
 481         else
 482                 new->dtim_period = old->dtim_period;
 483
 484         /*
 485          * pointers go into the block we allocated,
 486          * memory is | beacon_data | head | tail |
 487          */
 488         new->head = ((u8 *) new) + sizeof(*new);
 489         new->tail = new->head + new_head_len;
 490         new->head_len = new_head_len;
 491         new->tail_len = new_tail_len;
 492
 493         /* copy in head */
 494         if (params->head)
 495                 memcpy(new->head, params->head, new_head_len);
 496         else
 497                 memcpy(new->head, old->head, new_head_len);
 498
 499         /* copy in optional tail */
 500         if (params->tail)
 501                 memcpy(new->tail, params->tail, new_tail_len);
 502         else
 503                 if (old)
 504                         memcpy(new->tail, old->tail, new_tail_len);
 505
 506         rcu_assign_pointer(sdata->u.ap.beacon, new);
 507
 508         synchronize_rcu();
 509
 510         kfree(old);
 511
 512         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 513                                                 BSS_CHANGED_BEACON);
 514         return 0;
 515 }
 516
 517 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 518                                 struct beacon_parameters *params)
 519 {
 520         struct ieee80211_sub_if_data *sdata;
 521         struct beacon_data *old;
 522
 523         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 524
 525         old = sdata->u.ap.beacon;
 526
 527         if (old)
 528                 return -EALREADY;
 529
 530         return ieee80211_config_beacon(sdata, params);
 531 }
 532
 533 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 534                                 struct beacon_parameters *params)
 535 {
 536         struct ieee80211_sub_if_data *sdata;
 537         struct beacon_data *old;
 538
 539         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 540
 541         old = sdata->u.ap.beacon;
 542
 543         if (!old)
 544                 return -ENOENT;
 545
 546         return ieee80211_config_beacon(sdata, params);
 547 }
 548
 549 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 550 {
 551         struct ieee80211_sub_if_data *sdata;
 552         struct beacon_data *old;
 553
 554         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 555
 556         old = sdata->u.ap.beacon;
 557
 558         if (!old)
 559                 return -ENOENT;
 560
 561         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 562         synchronize_rcu();
 563         kfree(old);
 564
 565         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 566         return 0;
 567 }
 568
 569 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 570 struct iapp_layer2_update {
 571         u8 da[ETH_ALEN];        /* broadcast */
 572         u8 sa[ETH_ALEN];        /* STA addr */
 573         __be16 len;             /* 6 */
 574         u8 dsap;                /* 0 */
 575         u8 ssap;                /* 0 */
 576         u8 control;
 577         u8 xid_info[3];
 578 } __attribute__ ((packed));
 579
 580 static void ieee80211_send_layer2_update(struct sta_info *sta)
 581 {
 582         struct iapp_layer2_update *msg;
 583         struct sk_buff *skb;
 584
 585         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 586          * bridge devices */
 587
 588         skb = dev_alloc_skb(sizeof(*msg));
 589         if (!skb)
 590                 return;
 591         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 592
 593         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 594          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 595
 596         memset(msg->da, 0xff, ETH_ALEN);
 597         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 598         msg->len = htons(6);
 599         msg->dsap = 0;
 600         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 601         msg->control = 0xaf;    /* XID response lsb.1111F101.
 602                                  * F=0 (no poll command; unsolicited frame) */
 603         msg->xid_info[0] = 0x81;        /* XID format identifier */
 604         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 605         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 606
 607         skb->dev = sta->sdata->dev;
 608         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 609         memset(skb->cb, 0, sizeof(skb->cb));
 610         netif_rx(skb);
 611 }
 612
 613 static void sta_apply_parameters(struct ieee80211_local *local,
 614                                  struct sta_info *sta,
 615                                  struct station_parameters *params)
 616 {
 617         u32 rates;
 618         int i, j;
 619         struct ieee80211_supported_band *sband;
 620         struct ieee80211_sub_if_data *sdata = sta->sdata;
 621         u32 mask, set;
 622
 623         sband = local->hw.wiphy->bands[local->oper_channel->band];
 624
 625         spin_lock_bh(&sta->lock);
 626         mask = params->sta_flags_mask;
 627         set = params->sta_flags_set;
 628
 629         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 630                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 631                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 632                         sta->flags |= WLAN_STA_AUTHORIZED;
 633         }
 634
 635         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 636                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 637                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 638                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 639         }
 640
 641         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 642                 sta->flags &= ~WLAN_STA_WME;
 643                 if (set & BIT(NL80211_STA_FLAG_WME))
 644                         sta->flags |= WLAN_STA_WME;
 645         }
 646
 647         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 648                 sta->flags &= ~WLAN_STA_MFP;
 649                 if (set & BIT(NL80211_STA_FLAG_MFP))
 650                         sta->flags |= WLAN_STA_MFP;
 651         }
 652         spin_unlock_bh(&sta->lock);
 653
 654         /*
 655          * cfg80211 validates this (1-2007) and allows setting the AID
 656          * only when creating a new station entry
 657          */
 658         if (params->aid)
 659                 sta->sta.aid = params->aid;
 660
 661         /*
 662          * FIXME: updating the following information is racy when this
 663          *        function is called from ieee80211_change_station().
 664          *        However, all this information should be static so
 665          *        maybe we should just reject attemps to change it.
 666          */
 667
 668         if (params->listen_interval >= 0)
 669                 sta->listen_interval = params->listen_interval;
 670
 671         if (params->supported_rates) {
 672                 rates = 0;
 673
 674                 for (i = 0; i < params->supported_rates_len; i++) {
 675                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 676                         for (j = 0; j < sband->n_bitrates; j++) {
 677                                 if (sband->bitrates[j].bitrate == rate)
 678                                         rates |= BIT(j);
 679                         }
 680                 }
 681                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 682         }
 683
 684         if (params->ht_capa)
 685                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 686                                                   params->ht_capa,
 687                                                   &sta->sta.ht_cap);
 688
 689         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 690                 switch (params->plink_action) {
 691                 case PLINK_ACTION_OPEN:
 692                         mesh_plink_open(sta);
 693                         break;
 694                 case PLINK_ACTION_BLOCK:
 695                         mesh_plink_block(sta);
 696                         break;
 697                 }
 698         }
 699 }
 700
 701 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 702                                  u8 *mac, struct station_parameters *params)
 703 {
 704         struct ieee80211_local *local = wiphy_priv(wiphy);
 705         struct sta_info *sta;
 706         struct ieee80211_sub_if_data *sdata;
 707         int err;
 708         int layer2_update;
 709
 710         if (params->vlan) {
 711                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 712
 713                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 714                     sdata->vif.type != NL80211_IFTYPE_AP)
 715                         return -EINVAL;
 716         } else
 717                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 718
 719         if (compare_ether_addr(mac, dev->dev_addr) == 0)
 720                 return -EINVAL;
 721
 722         if (is_multicast_ether_addr(mac))
 723                 return -EINVAL;
 724
 725         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 726         if (!sta)
 727                 return -ENOMEM;
 728
 729         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 730
 731         sta_apply_parameters(local, sta, params);
 732
 733         rate_control_rate_init(sta);
 734
 735         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 736                 sdata->vif.type == NL80211_IFTYPE_AP;
 737
 738         rcu_read_lock();
 739
 740         err = sta_info_insert(sta);
 741         if (err) {
 742                 /* STA has been freed */
 743                 if (err == -EEXIST && layer2_update) {
 744                         /* Need to update layer 2 devices on reassociation */
 745                         sta = sta_info_get(local, mac);
 746                         if (sta)
 747                                 ieee80211_send_layer2_update(sta);
 748                 }
 749                 rcu_read_unlock();
 750                 return err;
 751         }
 752
 753         if (layer2_update)
 754                 ieee80211_send_layer2_update(sta);
 755
 756         rcu_read_unlock();
 757
 758         return 0;
 759 }
 760
 761 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 762                                  u8 *mac)
 763 {
 764         struct ieee80211_local *local = wiphy_priv(wiphy);
 765         struct ieee80211_sub_if_data *sdata;
 766         struct sta_info *sta;
 767
 768         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 769
 770         if (mac) {
 771                 rcu_read_lock();
 772
 773                 /* XXX: get sta belonging to dev */
 774                 sta = sta_info_get(local, mac);
 775                 if (!sta) {
 776                         rcu_read_unlock();
 777                         return -ENOENT;
 778                 }
 779
 780                 sta_info_unlink(&sta);
 781                 rcu_read_unlock();
 782
 783                 sta_info_destroy(sta);
 784         } else
 785                 sta_info_flush(local, sdata);
 786
 787         return 0;
 788 }
 789
 790 static int ieee80211_change_station(struct wiphy *wiphy,
 791                                     struct net_device *dev,
 792                                     u8 *mac,
 793                                     struct station_parameters *params)
 794 {
 795         struct ieee80211_local *local = wiphy_priv(wiphy);
 796         struct sta_info *sta;
 797         struct ieee80211_sub_if_data *vlansdata;
 798
 799         rcu_read_lock();
 800
 801         /* XXX: get sta belonging to dev */
 802         sta = sta_info_get(local, mac);
 803         if (!sta) {
 804                 rcu_read_unlock();
 805                 return -ENOENT;
 806         }
 807
 808         if (params->vlan && params->vlan != sta->sdata->dev) {
 809                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 810
 811                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 812                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 813                         rcu_read_unlock();
 814                         return -EINVAL;
 815                 }
 816
 817                 sta->sdata = vlansdata;
 818                 ieee80211_send_layer2_update(sta);
 819         }
 820
 821         sta_apply_parameters(local, sta, params);
 822
 823         rcu_read_unlock();
 824
 825         return 0;
 826 }
 827
 828 #ifdef CONFIG_MAC80211_MESH
 829 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 830                                  u8 *dst, u8 *next_hop)
 831 {
 832         struct ieee80211_local *local = wiphy_priv(wiphy);
 833         struct ieee80211_sub_if_data *sdata;
 834         struct mesh_path *mpath;
 835         struct sta_info *sta;
 836         int err;
 837
 838         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 839
 840         rcu_read_lock();
 841         sta = sta_info_get(local, next_hop);
 842         if (!sta) {
 843                 rcu_read_unlock();
 844                 return -ENOENT;
 845         }
 846
 847         err = mesh_path_add(dst, sdata);
 848         if (err) {
 849                 rcu_read_unlock();
 850                 return err;
 851         }
 852
 853         mpath = mesh_path_lookup(dst, sdata);
 854         if (!mpath) {
 855                 rcu_read_unlock();
 856                 return -ENXIO;
 857         }
 858         mesh_path_fix_nexthop(mpath, sta);
 859
 860         rcu_read_unlock();
 861         return 0;
 862 }
 863
 864 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 865                                  u8 *dst)
 866 {
 867         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 868
 869         if (dst)
 870                 return mesh_path_del(dst, sdata);
 871
 872         mesh_path_flush(sdata);
 873         return 0;
 874 }
 875
 876 static int ieee80211_change_mpath(struct wiphy *wiphy,
 877                                     struct net_device *dev,
 878                                     u8 *dst, u8 *next_hop)
 879 {
 880         struct ieee80211_local *local = wiphy_priv(wiphy);
 881         struct ieee80211_sub_if_data *sdata;
 882         struct mesh_path *mpath;
 883         struct sta_info *sta;
 884
 885         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 886
 887         rcu_read_lock();
 888
 889         sta = sta_info_get(local, next_hop);
 890         if (!sta) {
 891                 rcu_read_unlock();
 892                 return -ENOENT;
 893         }
 894
 895         mpath = mesh_path_lookup(dst, sdata);
 896         if (!mpath) {
 897                 rcu_read_unlock();
 898                 return -ENOENT;
 899         }
 900
 901         mesh_path_fix_nexthop(mpath, sta);
 902
 903         rcu_read_unlock();
 904         return 0;
 905 }
 906
 907 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 908                             struct mpath_info *pinfo)
 909 {
 910         if (mpath->next_hop)
 911                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 912         else
 913                 memset(next_hop, 0, ETH_ALEN);
 914
 915         pinfo->generation = mesh_paths_generation;
 916
 917         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 918                         MPATH_INFO_DSN |
 919                         MPATH_INFO_METRIC |
 920                         MPATH_INFO_EXPTIME |
 921                         MPATH_INFO_DISCOVERY_TIMEOUT |
 922                         MPATH_INFO_DISCOVERY_RETRIES |
 923                         MPATH_INFO_FLAGS;
 924
 925         pinfo->frame_qlen = mpath->frame_queue.qlen;
 926         pinfo->dsn = mpath->dsn;
 927         pinfo->metric = mpath->metric;
 928         if (time_before(jiffies, mpath->exp_time))
 929                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 930         pinfo->discovery_timeout =
 931                         jiffies_to_msecs(mpath->discovery_timeout);
 932         pinfo->discovery_retries = mpath->discovery_retries;
 933         pinfo->flags = 0;
 934         if (mpath->flags & MESH_PATH_ACTIVE)
 935                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 936         if (mpath->flags & MESH_PATH_RESOLVING)
 937                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 938         if (mpath->flags & MESH_PATH_DSN_VALID)
 939                 pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID;
 940         if (mpath->flags & MESH_PATH_FIXED)
 941                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 942         if (mpath->flags & MESH_PATH_RESOLVING)
 943                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 944
 945         pinfo->flags = mpath->flags;
 946 }
 947
 948 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 949                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 950
 951 {
 952         struct ieee80211_sub_if_data *sdata;
 953         struct mesh_path *mpath;
 954
 955         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 956
 957         rcu_read_lock();
 958         mpath = mesh_path_lookup(dst, sdata);
 959         if (!mpath) {
 960                 rcu_read_unlock();
 961                 return -ENOENT;
 962         }
 963         memcpy(dst, mpath->dst, ETH_ALEN);
 964         mpath_set_pinfo(mpath, next_hop, pinfo);
 965         rcu_read_unlock();
 966         return 0;
 967 }
 968
 969 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 970                                  int idx, u8 *dst, u8 *next_hop,
 971                                  struct mpath_info *pinfo)
 972 {
 973         struct ieee80211_sub_if_data *sdata;
 974         struct mesh_path *mpath;
 975
 976         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 977
 978         rcu_read_lock();
 979         mpath = mesh_path_lookup_by_idx(idx, sdata);
 980         if (!mpath) {
 981                 rcu_read_unlock();
 982                 return -ENOENT;
 983         }
 984         memcpy(dst, mpath->dst, ETH_ALEN);
 985         mpath_set_pinfo(mpath, next_hop, pinfo);
 986         rcu_read_unlock();
 987         return 0;
 988 }
 989
 990 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
 991                                 struct net_device *dev,
 992                                 struct mesh_config *conf)
 993 {
 994         struct ieee80211_sub_if_data *sdata;
 995         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 996
 997         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
 998         return 0;
 999 }
1000
1001 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1002 {
1003         return (mask >> (parm-1)) & 0x1;
1004 }
1005
1006 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1007                                 struct net_device *dev,
1008                                 const struct mesh_config *nconf, u32 mask)
1009 {
1010         struct mesh_config *conf;
1011         struct ieee80211_sub_if_data *sdata;
1012         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1013
1014         /* Set the config options which we are interested in setting */
1015         conf = &(sdata->u.mesh.mshcfg);
1016         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1017                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1018         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1019                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1020         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1021                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1022         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1023                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1024         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1025                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1026         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1027                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1028         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1029                 conf->auto_open_plinks = nconf->auto_open_plinks;
1030         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1031                 conf->dot11MeshHWMPmaxPREQretries =
1032                         nconf->dot11MeshHWMPmaxPREQretries;
1033         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1034                 conf->path_refresh_time = nconf->path_refresh_time;
1035         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1036                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1037         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1038                 conf->dot11MeshHWMPactivePathTimeout =
1039                         nconf->dot11MeshHWMPactivePathTimeout;
1040         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1041                 conf->dot11MeshHWMPpreqMinInterval =
1042                         nconf->dot11MeshHWMPpreqMinInterval;
1043         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1044                            mask))
1045                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1046                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1047         return 0;
1048 }
1049
1050 #endif
1051
1052 static int ieee80211_change_bss(struct wiphy *wiphy,
1053                                 struct net_device *dev,
1054                                 struct bss_parameters *params)
1055 {
1056         struct ieee80211_sub_if_data *sdata;
1057         u32 changed = 0;
1058
1059         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1060
1061         if (params->use_cts_prot >= 0) {
1062                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1063                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1064         }
1065         if (params->use_short_preamble >= 0) {
1066                 sdata->vif.bss_conf.use_short_preamble =
1067                         params->use_short_preamble;
1068                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1069         }
1070         if (params->use_short_slot_time >= 0) {
1071                 sdata->vif.bss_conf.use_short_slot =
1072                         params->use_short_slot_time;
1073                 changed |= BSS_CHANGED_ERP_SLOT;
1074         }
1075
1076         if (params->basic_rates) {
1077                 int i, j;
1078                 u32 rates = 0;
1079                 struct ieee80211_local *local = wiphy_priv(wiphy);
1080                 struct ieee80211_supported_band *sband =
1081                         wiphy->bands[local->oper_channel->band];
1082
1083                 for (i = 0; i < params->basic_rates_len; i++) {
1084                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1085                         for (j = 0; j < sband->n_bitrates; j++) {
1086                                 if (sband->bitrates[j].bitrate == rate)
1087                                         rates |= BIT(j);
1088                         }
1089                 }
1090                 sdata->vif.bss_conf.basic_rates = rates;
1091                 changed |= BSS_CHANGED_BASIC_RATES;
1092         }
1093
1094         ieee80211_bss_info_change_notify(sdata, changed);
1095
1096         return 0;
1097 }
1098
1099 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1100                                     struct ieee80211_txq_params *params)
1101 {
1102         struct ieee80211_local *local = wiphy_priv(wiphy);
1103         struct ieee80211_tx_queue_params p;
1104
1105         if (!local->ops->conf_tx)
1106                 return -EOPNOTSUPP;
1107
1108         memset(&p, 0, sizeof(p));
1109         p.aifs = params->aifs;
1110         p.cw_max = params->cwmax;
1111         p.cw_min = params->cwmin;
1112         p.txop = params->txop;
1113         if (drv_conf_tx(local, params->queue, &p)) {
1114                 printk(KERN_DEBUG "%s: failed to set TX queue "
1115                        "parameters for queue %d\n",
1116                        wiphy_name(local->hw.wiphy), params->queue);
1117                 return -EINVAL;
1118         }
1119
1120         return 0;
1121 }
1122
1123 static int ieee80211_set_channel(struct wiphy *wiphy,
1124                                  struct ieee80211_channel *chan,
1125                                  enum nl80211_channel_type channel_type)
1126 {
1127         struct ieee80211_local *local = wiphy_priv(wiphy);
1128
1129         local->oper_channel = chan;
1130         local->oper_channel_type = channel_type;
1131
1132         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1133 }
1134
1135 #ifdef CONFIG_PM
1136 static int ieee80211_suspend(struct wiphy *wiphy)
1137 {
1138         return __ieee80211_suspend(wiphy_priv(wiphy));
1139 }
1140
1141 static int ieee80211_resume(struct wiphy *wiphy)
1142 {
1143         return __ieee80211_resume(wiphy_priv(wiphy));
1144 }
1145 #else
1146 #define ieee80211_suspend NULL
1147 #define ieee80211_resume NULL
1148 #endif
1149
1150 static int ieee80211_scan(struct wiphy *wiphy,
1151                           struct net_device *dev,
1152                           struct cfg80211_scan_request *req)
1153 {
1154         struct ieee80211_sub_if_data *sdata;
1155
1156         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1157
1158         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1159             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1160             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1161             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1162                 return -EOPNOTSUPP;
1163
1164         return ieee80211_request_scan(sdata, req);
1165 }
1166
1167 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1168                           struct cfg80211_auth_request *req)
1169 {
1170         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1171 }
1172
1173 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1174                            struct cfg80211_assoc_request *req)
1175 {
1176         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1177 }
1178
1179 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1180                             struct cfg80211_deauth_request *req,
1181                             void *cookie)
1182 {
1183         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1184                                     req, cookie);
1185 }
1186
1187 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1188                               struct cfg80211_disassoc_request *req,
1189                               void *cookie)
1190 {
1191         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1192                                       req, cookie);
1193 }
1194
1195 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1196                                struct cfg80211_ibss_params *params)
1197 {
1198         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1199
1200         return ieee80211_ibss_join(sdata, params);
1201 }
1202
1203 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1204 {
1205         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1206
1207         return ieee80211_ibss_leave(sdata);
1208 }
1209
1210 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1211 {
1212         struct ieee80211_local *local = wiphy_priv(wiphy);
1213         int err;
1214
1215         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1216                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1217
1218                 if (err)
1219                         return err;
1220         }
1221
1222         if (changed & WIPHY_PARAM_RETRY_SHORT)
1223                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1224         if (changed & WIPHY_PARAM_RETRY_LONG)
1225                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1226         if (changed &
1227             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1228                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1229
1230         return 0;
1231 }
1232
1233 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1234                                   enum tx_power_setting type, int dbm)
1235 {
1236         struct ieee80211_local *local = wiphy_priv(wiphy);
1237         struct ieee80211_channel *chan = local->hw.conf.channel;
1238         u32 changes = 0;
1239
1240         switch (type) {
1241         case TX_POWER_AUTOMATIC:
1242                 local->user_power_level = -1;
1243                 break;
1244         case TX_POWER_LIMITED:
1245                 if (dbm < 0)
1246                         return -EINVAL;
1247                 local->user_power_level = dbm;
1248                 break;
1249         case TX_POWER_FIXED:
1250                 if (dbm < 0)
1251                         return -EINVAL;
1252                 /* TODO: move to cfg80211 when it knows the channel */
1253                 if (dbm > chan->max_power)
1254                         return -EINVAL;
1255                 local->user_power_level = dbm;
1256                 break;
1257         }
1258
1259         ieee80211_hw_config(local, changes);
1260
1261         return 0;
1262 }
1263
1264 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1265 {
1266         struct ieee80211_local *local = wiphy_priv(wiphy);
1267
1268         *dbm = local->hw.conf.power_level;
1269
1270         return 0;
1271 }
1272
1273 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1274                                   u8 *addr)
1275 {
1276         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1277
1278         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1279
1280         return 0;
1281 }
1282
1283 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1284 {
1285         struct ieee80211_local *local = wiphy_priv(wiphy);
1286
1287         drv_rfkill_poll(local);
1288 }
1289
1290 #ifdef CONFIG_NL80211_TESTMODE
1291 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1292 {
1293         struct ieee80211_local *local = wiphy_priv(wiphy);
1294
1295         if (!local->ops->testmode_cmd)
1296                 return -EOPNOTSUPP;
1297
1298         return local->ops->testmode_cmd(&local->hw, data, len);
1299 }
1300 #endif
1301
1302 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1303                                     bool enabled, int timeout)
1304 {
1305         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1306         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1307         struct ieee80211_conf *conf = &local->hw.conf;
1308
1309         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1310                 return -EOPNOTSUPP;
1311
1312         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1313                 return -EOPNOTSUPP;
1314
1315         if (enabled == sdata->u.mgd.powersave &&
1316             timeout == conf->dynamic_ps_timeout)
1317                 return 0;
1318
1319         sdata->u.mgd.powersave = enabled;
1320         conf->dynamic_ps_timeout = timeout;
1321
1322         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1323                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1324
1325         ieee80211_recalc_ps(local, -1);
1326
1327         return 0;
1328 }
1329
1330 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1331                                       struct net_device *dev,
1332                                       const u8 *addr,
1333                                       const struct cfg80211_bitrate_mask *mask)
1334 {
1335         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1336         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1337         int i, err = -EINVAL;
1338         u32 target_rate;
1339         struct ieee80211_supported_band *sband;
1340
1341         sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
1342
1343         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
1344          * target_rate = X, rate->fixed = 1 means only rate X
1345          * target_rate = X, rate->fixed = 0 means all rates <= X */
1346         sdata->max_ratectrl_rateidx = -1;
1347         sdata->force_unicast_rateidx = -1;
1348
1349         if (mask->fixed)
1350                 target_rate = mask->fixed / 100;
1351         else if (mask->maxrate)
1352                 target_rate = mask->maxrate / 100;
1353         else
1354                 return 0;
1355
1356         for (i=0; i< sband->n_bitrates; i++) {
1357                 struct ieee80211_rate *brate = &sband->bitrates[i];
1358                 int this_rate = brate->bitrate;
1359
1360                 if (target_rate == this_rate) {
1361                         sdata->max_ratectrl_rateidx = i;
1362                         if (mask->fixed)
1363                                 sdata->force_unicast_rateidx = i;
1364                         err = 0;
1365                         break;
1366                 }
1367         }
1368
1369         return err;
1370 }
1371
1372 struct cfg80211_ops mac80211_config_ops = {
1373         .add_virtual_intf = ieee80211_add_iface,
1374         .del_virtual_intf = ieee80211_del_iface,
1375         .change_virtual_intf = ieee80211_change_iface,
1376         .add_key = ieee80211_add_key,
1377         .del_key = ieee80211_del_key,
1378         .get_key = ieee80211_get_key,
1379         .set_default_key = ieee80211_config_default_key,
1380         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1381         .add_beacon = ieee80211_add_beacon,
1382         .set_beacon = ieee80211_set_beacon,
1383         .del_beacon = ieee80211_del_beacon,
1384         .add_station = ieee80211_add_station,
1385         .del_station = ieee80211_del_station,
1386         .change_station = ieee80211_change_station,
1387         .get_station = ieee80211_get_station,
1388         .dump_station = ieee80211_dump_station,
1389 #ifdef CONFIG_MAC80211_MESH
1390         .add_mpath = ieee80211_add_mpath,
1391         .del_mpath = ieee80211_del_mpath,
1392         .change_mpath = ieee80211_change_mpath,
1393         .get_mpath = ieee80211_get_mpath,
1394         .dump_mpath = ieee80211_dump_mpath,
1395         .set_mesh_params = ieee80211_set_mesh_params,
1396         .get_mesh_params = ieee80211_get_mesh_params,
1397 #endif
1398         .change_bss = ieee80211_change_bss,
1399         .set_txq_params = ieee80211_set_txq_params,
1400         .set_channel = ieee80211_set_channel,
1401         .suspend = ieee80211_suspend,
1402         .resume = ieee80211_resume,
1403         .scan = ieee80211_scan,
1404         .auth = ieee80211_auth,
1405         .assoc = ieee80211_assoc,
1406         .deauth = ieee80211_deauth,
1407         .disassoc = ieee80211_disassoc,
1408         .join_ibss = ieee80211_join_ibss,
1409         .leave_ibss = ieee80211_leave_ibss,
1410         .set_wiphy_params = ieee80211_set_wiphy_params,
1411         .set_tx_power = ieee80211_set_tx_power,
1412         .get_tx_power = ieee80211_get_tx_power,
1413         .set_wds_peer = ieee80211_set_wds_peer,
1414         .rfkill_poll = ieee80211_rfkill_poll,
1415         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1416         .set_power_mgmt = ieee80211_set_power_mgmt,
1417         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1418 };