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 "cfg.h"
  17 #include "rate.h"
  18 #include "mesh.h"
  19
  20 static bool nl80211_type_check(enum nl80211_iftype type)
  21 {
  22         switch (type) {
  23         case NL80211_IFTYPE_ADHOC:
  24         case NL80211_IFTYPE_STATION:
  25         case NL80211_IFTYPE_MONITOR:
  26 #ifdef CONFIG_MAC80211_MESH
  27         case NL80211_IFTYPE_MESH_POINT:
  28 #endif
  29         case NL80211_IFTYPE_AP:
  30         case NL80211_IFTYPE_AP_VLAN:
  31         case NL80211_IFTYPE_WDS:
  32                 return true;
  33         default:
  34                 return false;
  35         }
  36 }
  37
  38 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
  39                                enum nl80211_iftype type, u32 *flags,
  40                                struct vif_params *params)
  41 {
  42         struct ieee80211_local *local = wiphy_priv(wiphy);
  43         struct net_device *dev;
  44         struct ieee80211_sub_if_data *sdata;
  45         int err;
  46
  47         if (!nl80211_type_check(type))
  48                 return -EINVAL;
  49
  50         err = ieee80211_if_add(local, name, &dev, type, params);
  51         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
  52                 return err;
  53
  54         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  55         sdata->u.mntr_flags = *flags;
  56         return 0;
  57 }
  58
  59 static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
  60 {
  61         struct net_device *dev;
  62         struct ieee80211_sub_if_data *sdata;
  63
  64         /* we're under RTNL */
  65         dev = __dev_get_by_index(&init_net, ifindex);
  66         if (!dev)
  67                 return -ENODEV;
  68
  69         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  70
  71         ieee80211_if_remove(sdata);
  72
  73         return 0;
  74 }
  75
  76 static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
  77                                   enum nl80211_iftype type, u32 *flags,
  78                                   struct vif_params *params)
  79 {
  80         struct net_device *dev;
  81         struct ieee80211_sub_if_data *sdata;
  82         int ret;
  83
  84         /* we're under RTNL */
  85         dev = __dev_get_by_index(&init_net, ifindex);
  86         if (!dev)
  87                 return -ENODEV;
  88
  89         if (!nl80211_type_check(type))
  90                 return -EINVAL;
  91
  92         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  93
  94         ret = ieee80211_if_change_type(sdata, type);
  95         if (ret)
  96                 return ret;
  97
  98         if (netif_running(sdata->dev))
  99                 return -EBUSY;
 100
 101         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
 102                 ieee80211_sdata_set_mesh_id(sdata,
 103                                             params->mesh_id_len,
 104                                             params->mesh_id);
 105
 106         if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
 107                 return 0;
 108
 109         sdata->u.mntr_flags = *flags;
 110         return 0;
 111 }
 112
 113 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 114                              u8 key_idx, u8 *mac_addr,
 115                              struct key_params *params)
 116 {
 117         struct ieee80211_sub_if_data *sdata;
 118         struct sta_info *sta = NULL;
 119         enum ieee80211_key_alg alg;
 120         struct ieee80211_key *key;
 121         int err;
 122
 123         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 124
 125         switch (params->cipher) {
 126         case WLAN_CIPHER_SUITE_WEP40:
 127         case WLAN_CIPHER_SUITE_WEP104:
 128                 alg = ALG_WEP;
 129                 break;
 130         case WLAN_CIPHER_SUITE_TKIP:
 131                 alg = ALG_TKIP;
 132                 break;
 133         case WLAN_CIPHER_SUITE_CCMP:
 134                 alg = ALG_CCMP;
 135                 break;
 136         case WLAN_CIPHER_SUITE_AES_CMAC:
 137                 alg = ALG_AES_CMAC;
 138                 break;
 139         default:
 140                 return -EINVAL;
 141         }
 142
 143         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key);
 144         if (!key)
 145                 return -ENOMEM;
 146
 147         rcu_read_lock();
 148
 149         if (mac_addr) {
 150                 sta = sta_info_get(sdata->local, mac_addr);
 151                 if (!sta) {
 152                         ieee80211_key_free(key);
 153                         err = -ENOENT;
 154                         goto out_unlock;
 155                 }
 156         }
 157
 158         ieee80211_key_link(key, sdata, sta);
 159
 160         err = 0;
 161  out_unlock:
 162         rcu_read_unlock();
 163
 164         return err;
 165 }
 166
 167 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 168                              u8 key_idx, u8 *mac_addr)
 169 {
 170         struct ieee80211_sub_if_data *sdata;
 171         struct sta_info *sta;
 172         int ret;
 173
 174         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 175
 176         rcu_read_lock();
 177
 178         if (mac_addr) {
 179                 ret = -ENOENT;
 180
 181                 sta = sta_info_get(sdata->local, mac_addr);
 182                 if (!sta)
 183                         goto out_unlock;
 184
 185                 if (sta->key) {
 186                         ieee80211_key_free(sta->key);
 187                         WARN_ON(sta->key);
 188                         ret = 0;
 189                 }
 190
 191                 goto out_unlock;
 192         }
 193
 194         if (!sdata->keys[key_idx]) {
 195                 ret = -ENOENT;
 196                 goto out_unlock;
 197         }
 198
 199         ieee80211_key_free(sdata->keys[key_idx]);
 200         WARN_ON(sdata->keys[key_idx]);
 201
 202         ret = 0;
 203  out_unlock:
 204         rcu_read_unlock();
 205
 206         return ret;
 207 }
 208
 209 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 210                              u8 key_idx, u8 *mac_addr, void *cookie,
 211                              void (*callback)(void *cookie,
 212                                               struct key_params *params))
 213 {
 214         struct ieee80211_sub_if_data *sdata;
 215         struct sta_info *sta = NULL;
 216         u8 seq[6] = {0};
 217         struct key_params params;
 218         struct ieee80211_key *key;
 219         u32 iv32;
 220         u16 iv16;
 221         int err = -ENOENT;
 222
 223         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 224
 225         rcu_read_lock();
 226
 227         if (mac_addr) {
 228                 sta = sta_info_get(sdata->local, mac_addr);
 229                 if (!sta)
 230                         goto out;
 231
 232                 key = sta->key;
 233         } else
 234                 key = sdata->keys[key_idx];
 235
 236         if (!key)
 237                 goto out;
 238
 239         memset(&params, 0, sizeof(params));
 240
 241         switch (key->conf.alg) {
 242         case ALG_TKIP:
 243                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
 244
 245                 iv32 = key->u.tkip.tx.iv32;
 246                 iv16 = key->u.tkip.tx.iv16;
 247
 248                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 249                     sdata->local->ops->get_tkip_seq)
 250                         sdata->local->ops->get_tkip_seq(
 251                                 local_to_hw(sdata->local),
 252                                 key->conf.hw_key_idx,
 253                                 &iv32, &iv16);
 254
 255                 seq[0] = iv16 & 0xff;
 256                 seq[1] = (iv16 >> 8) & 0xff;
 257                 seq[2] = iv32 & 0xff;
 258                 seq[3] = (iv32 >> 8) & 0xff;
 259                 seq[4] = (iv32 >> 16) & 0xff;
 260                 seq[5] = (iv32 >> 24) & 0xff;
 261                 params.seq = seq;
 262                 params.seq_len = 6;
 263                 break;
 264         case ALG_CCMP:
 265                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
 266                 seq[0] = key->u.ccmp.tx_pn[5];
 267                 seq[1] = key->u.ccmp.tx_pn[4];
 268                 seq[2] = key->u.ccmp.tx_pn[3];
 269                 seq[3] = key->u.ccmp.tx_pn[2];
 270                 seq[4] = key->u.ccmp.tx_pn[1];
 271                 seq[5] = key->u.ccmp.tx_pn[0];
 272                 params.seq = seq;
 273                 params.seq_len = 6;
 274                 break;
 275         case ALG_WEP:
 276                 if (key->conf.keylen == 5)
 277                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
 278                 else
 279                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
 280                 break;
 281         case ALG_AES_CMAC:
 282                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 283                 seq[0] = key->u.aes_cmac.tx_pn[5];
 284                 seq[1] = key->u.aes_cmac.tx_pn[4];
 285                 seq[2] = key->u.aes_cmac.tx_pn[3];
 286                 seq[3] = key->u.aes_cmac.tx_pn[2];
 287                 seq[4] = key->u.aes_cmac.tx_pn[1];
 288                 seq[5] = key->u.aes_cmac.tx_pn[0];
 289                 params.seq = seq;
 290                 params.seq_len = 6;
 291                 break;
 292         }
 293
 294         params.key = key->conf.key;
 295         params.key_len = key->conf.keylen;
 296
 297         callback(cookie, &params);
 298         err = 0;
 299
 300  out:
 301         rcu_read_unlock();
 302         return err;
 303 }
 304
 305 static int ieee80211_config_default_key(struct wiphy *wiphy,
 306                                         struct net_device *dev,
 307                                         u8 key_idx)
 308 {
 309         struct ieee80211_sub_if_data *sdata;
 310
 311         rcu_read_lock();
 312
 313         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 314         ieee80211_set_default_key(sdata, key_idx);
 315
 316         rcu_read_unlock();
 317
 318         return 0;
 319 }
 320
 321 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 322                                              struct net_device *dev,
 323                                              u8 key_idx)
 324 {
 325         struct ieee80211_sub_if_data *sdata;
 326
 327         rcu_read_lock();
 328
 329         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 330         ieee80211_set_default_mgmt_key(sdata, key_idx);
 331
 332         rcu_read_unlock();
 333
 334         return 0;
 335 }
 336
 337 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 338 {
 339         struct ieee80211_sub_if_data *sdata = sta->sdata;
 340
 341         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 342                         STATION_INFO_RX_BYTES |
 343                         STATION_INFO_TX_BYTES |
 344                         STATION_INFO_RX_PACKETS |
 345                         STATION_INFO_TX_PACKETS |
 346                         STATION_INFO_TX_BITRATE;
 347
 348         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 349         sinfo->rx_bytes = sta->rx_bytes;
 350         sinfo->tx_bytes = sta->tx_bytes;
 351         sinfo->rx_packets = sta->rx_packets;
 352         sinfo->tx_packets = sta->tx_packets;
 353
 354         if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
 355                 sinfo->filled |= STATION_INFO_SIGNAL;
 356                 sinfo->signal = (s8)sta->last_signal;
 357         }
 358
 359         sinfo->txrate.flags = 0;
 360         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 361                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 362         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 363                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 364         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 365                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 366
 367         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 368                 struct ieee80211_supported_band *sband;
 369                 sband = sta->local->hw.wiphy->bands[
 370                                 sta->local->hw.conf.channel->band];
 371                 sinfo->txrate.legacy =
 372                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 373         } else
 374                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 375
 376         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 377 #ifdef CONFIG_MAC80211_MESH
 378                 sinfo->filled |= STATION_INFO_LLID |
 379                                  STATION_INFO_PLID |
 380                                  STATION_INFO_PLINK_STATE;
 381
 382                 sinfo->llid = le16_to_cpu(sta->llid);
 383                 sinfo->plid = le16_to_cpu(sta->plid);
 384                 sinfo->plink_state = sta->plink_state;
 385 #endif
 386         }
 387 }
 388
 389
 390 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 391                                  int idx, u8 *mac, struct station_info *sinfo)
 392 {
 393         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 394         struct sta_info *sta;
 395         int ret = -ENOENT;
 396
 397         rcu_read_lock();
 398
 399         sta = sta_info_get_by_idx(local, idx, dev);
 400         if (sta) {
 401                 ret = 0;
 402                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 403                 sta_set_sinfo(sta, sinfo);
 404         }
 405
 406         rcu_read_unlock();
 407
 408         return ret;
 409 }
 410
 411 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 412                                  u8 *mac, struct station_info *sinfo)
 413 {
 414         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 415         struct sta_info *sta;
 416         int ret = -ENOENT;
 417
 418         rcu_read_lock();
 419
 420         /* XXX: verify sta->dev == dev */
 421
 422         sta = sta_info_get(local, mac);
 423         if (sta) {
 424                 ret = 0;
 425                 sta_set_sinfo(sta, sinfo);
 426         }
 427
 428         rcu_read_unlock();
 429
 430         return ret;
 431 }
 432
 433 /*
 434  * This handles both adding a beacon and setting new beacon info
 435  */
 436 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 437                                    struct beacon_parameters *params)
 438 {
 439         struct beacon_data *new, *old;
 440         int new_head_len, new_tail_len;
 441         int size;
 442         int err = -EINVAL;
 443
 444         old = sdata->u.ap.beacon;
 445
 446         /* head must not be zero-length */
 447         if (params->head && !params->head_len)
 448                 return -EINVAL;
 449
 450         /*
 451          * This is a kludge. beacon interval should really be part
 452          * of the beacon information.
 453          */
 454         if (params->interval) {
 455                 sdata->local->hw.conf.beacon_int = params->interval;
 456                 err = ieee80211_hw_config(sdata->local,
 457                                         IEEE80211_CONF_CHANGE_BEACON_INTERVAL);
 458                 if (err < 0)
 459                         return err;
 460                 /*
 461                  * We updated some parameter so if below bails out
 462                  * it's not an error.
 463                  */
 464                 err = 0;
 465         }
 466
 467         /* Need to have a beacon head if we don't have one yet */
 468         if (!params->head && !old)
 469                 return err;
 470
 471         /* sorry, no way to start beaconing without dtim period */
 472         if (!params->dtim_period && !old)
 473                 return err;
 474
 475         /* new or old head? */
 476         if (params->head)
 477                 new_head_len = params->head_len;
 478         else
 479                 new_head_len = old->head_len;
 480
 481         /* new or old tail? */
 482         if (params->tail || !old)
 483                 /* params->tail_len will be zero for !params->tail */
 484                 new_tail_len = params->tail_len;
 485         else
 486                 new_tail_len = old->tail_len;
 487
 488         size = sizeof(*new) + new_head_len + new_tail_len;
 489
 490         new = kzalloc(size, GFP_KERNEL);
 491         if (!new)
 492                 return -ENOMEM;
 493
 494         /* start filling the new info now */
 495
 496         /* new or old dtim period? */
 497         if (params->dtim_period)
 498                 new->dtim_period = params->dtim_period;
 499         else
 500                 new->dtim_period = old->dtim_period;
 501
 502         /*
 503          * pointers go into the block we allocated,
 504          * memory is | beacon_data | head | tail |
 505          */
 506         new->head = ((u8 *) new) + sizeof(*new);
 507         new->tail = new->head + new_head_len;
 508         new->head_len = new_head_len;
 509         new->tail_len = new_tail_len;
 510
 511         /* copy in head */
 512         if (params->head)
 513                 memcpy(new->head, params->head, new_head_len);
 514         else
 515                 memcpy(new->head, old->head, new_head_len);
 516
 517         /* copy in optional tail */
 518         if (params->tail)
 519                 memcpy(new->tail, params->tail, new_tail_len);
 520         else
 521                 if (old)
 522                         memcpy(new->tail, old->tail, new_tail_len);
 523
 524         rcu_assign_pointer(sdata->u.ap.beacon, new);
 525
 526         synchronize_rcu();
 527
 528         kfree(old);
 529
 530         return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON |
 531                                           IEEE80211_IFCC_BEACON_ENABLED);
 532 }
 533
 534 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 535                                 struct beacon_parameters *params)
 536 {
 537         struct ieee80211_sub_if_data *sdata;
 538         struct beacon_data *old;
 539
 540         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 541
 542         if (sdata->vif.type != NL80211_IFTYPE_AP)
 543                 return -EINVAL;
 544
 545         old = sdata->u.ap.beacon;
 546
 547         if (old)
 548                 return -EALREADY;
 549
 550         return ieee80211_config_beacon(sdata, params);
 551 }
 552
 553 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 554                                 struct beacon_parameters *params)
 555 {
 556         struct ieee80211_sub_if_data *sdata;
 557         struct beacon_data *old;
 558
 559         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 560
 561         if (sdata->vif.type != NL80211_IFTYPE_AP)
 562                 return -EINVAL;
 563
 564         old = sdata->u.ap.beacon;
 565
 566         if (!old)
 567                 return -ENOENT;
 568
 569         return ieee80211_config_beacon(sdata, params);
 570 }
 571
 572 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 573 {
 574         struct ieee80211_sub_if_data *sdata;
 575         struct beacon_data *old;
 576
 577         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 578
 579         if (sdata->vif.type != NL80211_IFTYPE_AP)
 580                 return -EINVAL;
 581
 582         old = sdata->u.ap.beacon;
 583
 584         if (!old)
 585                 return -ENOENT;
 586
 587         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 588         synchronize_rcu();
 589         kfree(old);
 590
 591         return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON_ENABLED);
 592 }
 593
 594 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 595 struct iapp_layer2_update {
 596         u8 da[ETH_ALEN];        /* broadcast */
 597         u8 sa[ETH_ALEN];        /* STA addr */
 598         __be16 len;             /* 6 */
 599         u8 dsap;                /* 0 */
 600         u8 ssap;                /* 0 */
 601         u8 control;
 602         u8 xid_info[3];
 603 } __attribute__ ((packed));
 604
 605 static void ieee80211_send_layer2_update(struct sta_info *sta)
 606 {
 607         struct iapp_layer2_update *msg;
 608         struct sk_buff *skb;
 609
 610         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 611          * bridge devices */
 612
 613         skb = dev_alloc_skb(sizeof(*msg));
 614         if (!skb)
 615                 return;
 616         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 617
 618         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 619          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 620
 621         memset(msg->da, 0xff, ETH_ALEN);
 622         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 623         msg->len = htons(6);
 624         msg->dsap = 0;
 625         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 626         msg->control = 0xaf;    /* XID response lsb.1111F101.
 627                                  * F=0 (no poll command; unsolicited frame) */
 628         msg->xid_info[0] = 0x81;        /* XID format identifier */
 629         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 630         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 631
 632         skb->dev = sta->sdata->dev;
 633         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 634         memset(skb->cb, 0, sizeof(skb->cb));
 635         netif_rx(skb);
 636 }
 637
 638 static void sta_apply_parameters(struct ieee80211_local *local,
 639                                  struct sta_info *sta,
 640                                  struct station_parameters *params)
 641 {
 642         u32 rates;
 643         int i, j;
 644         struct ieee80211_supported_band *sband;
 645         struct ieee80211_sub_if_data *sdata = sta->sdata;
 646
 647         sband = local->hw.wiphy->bands[local->oper_channel->band];
 648
 649         /*
 650          * FIXME: updating the flags is racy when this function is
 651          *        called from ieee80211_change_station(), this will
 652          *        be resolved in a future patch.
 653          */
 654
 655         if (params->station_flags & STATION_FLAG_CHANGED) {
 656                 spin_lock_bh(&sta->lock);
 657                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 658                 if (params->station_flags & STATION_FLAG_AUTHORIZED)
 659                         sta->flags |= WLAN_STA_AUTHORIZED;
 660
 661                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 662                 if (params->station_flags & STATION_FLAG_SHORT_PREAMBLE)
 663                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 664
 665                 sta->flags &= ~WLAN_STA_WME;
 666                 if (params->station_flags & STATION_FLAG_WME)
 667                         sta->flags |= WLAN_STA_WME;
 668
 669                 sta->flags &= ~WLAN_STA_MFP;
 670                 if (params->station_flags & STATION_FLAG_MFP)
 671                         sta->flags |= WLAN_STA_MFP;
 672                 spin_unlock_bh(&sta->lock);
 673         }
 674
 675         /*
 676          * FIXME: updating the following information is racy when this
 677          *        function is called from ieee80211_change_station().
 678          *        However, all this information should be static so
 679          *        maybe we should just reject attemps to change it.
 680          */
 681
 682         if (params->aid) {
 683                 sta->sta.aid = params->aid;
 684                 if (sta->sta.aid > IEEE80211_MAX_AID)
 685                         sta->sta.aid = 0; /* XXX: should this be an error? */
 686         }
 687
 688         if (params->listen_interval >= 0)
 689                 sta->listen_interval = params->listen_interval;
 690
 691         if (params->supported_rates) {
 692                 rates = 0;
 693
 694                 for (i = 0; i < params->supported_rates_len; i++) {
 695                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 696                         for (j = 0; j < sband->n_bitrates; j++) {
 697                                 if (sband->bitrates[j].bitrate == rate)
 698                                         rates |= BIT(j);
 699                         }
 700                 }
 701                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 702         }
 703
 704         if (params->ht_capa)
 705                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 706                                                   params->ht_capa,
 707                                                   &sta->sta.ht_cap);
 708
 709         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 710                 switch (params->plink_action) {
 711                 case PLINK_ACTION_OPEN:
 712                         mesh_plink_open(sta);
 713                         break;
 714                 case PLINK_ACTION_BLOCK:
 715                         mesh_plink_block(sta);
 716                         break;
 717                 }
 718         }
 719 }
 720
 721 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 722                                  u8 *mac, struct station_parameters *params)
 723 {
 724         struct ieee80211_local *local = wiphy_priv(wiphy);
 725         struct sta_info *sta;
 726         struct ieee80211_sub_if_data *sdata;
 727         int err;
 728         int layer2_update;
 729
 730         /* Prevent a race with changing the rate control algorithm */
 731         if (!netif_running(dev))
 732                 return -ENETDOWN;
 733
 734         if (params->vlan) {
 735                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 736
 737                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 738                     sdata->vif.type != NL80211_IFTYPE_AP)
 739                         return -EINVAL;
 740         } else
 741                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 742
 743         if (compare_ether_addr(mac, dev->dev_addr) == 0)
 744                 return -EINVAL;
 745
 746         if (is_multicast_ether_addr(mac))
 747                 return -EINVAL;
 748
 749         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 750         if (!sta)
 751                 return -ENOMEM;
 752
 753         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 754
 755         sta_apply_parameters(local, sta, params);
 756
 757         rate_control_rate_init(sta);
 758
 759         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 760                 sdata->vif.type == NL80211_IFTYPE_AP;
 761
 762         rcu_read_lock();
 763
 764         err = sta_info_insert(sta);
 765         if (err) {
 766                 /* STA has been freed */
 767                 if (err == -EEXIST && layer2_update) {
 768                         /* Need to update layer 2 devices on reassociation */
 769                         sta = sta_info_get(local, mac);
 770                         if (sta)
 771                                 ieee80211_send_layer2_update(sta);
 772                 }
 773                 rcu_read_unlock();
 774                 return err;
 775         }
 776
 777         if (layer2_update)
 778                 ieee80211_send_layer2_update(sta);
 779
 780         rcu_read_unlock();
 781
 782         return 0;
 783 }
 784
 785 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 786                                  u8 *mac)
 787 {
 788         struct ieee80211_local *local = wiphy_priv(wiphy);
 789         struct ieee80211_sub_if_data *sdata;
 790         struct sta_info *sta;
 791
 792         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 793
 794         if (mac) {
 795                 rcu_read_lock();
 796
 797                 /* XXX: get sta belonging to dev */
 798                 sta = sta_info_get(local, mac);
 799                 if (!sta) {
 800                         rcu_read_unlock();
 801                         return -ENOENT;
 802                 }
 803
 804                 sta_info_unlink(&sta);
 805                 rcu_read_unlock();
 806
 807                 sta_info_destroy(sta);
 808         } else
 809                 sta_info_flush(local, sdata);
 810
 811         return 0;
 812 }
 813
 814 static int ieee80211_change_station(struct wiphy *wiphy,
 815                                     struct net_device *dev,
 816                                     u8 *mac,
 817                                     struct station_parameters *params)
 818 {
 819         struct ieee80211_local *local = wiphy_priv(wiphy);
 820         struct sta_info *sta;
 821         struct ieee80211_sub_if_data *vlansdata;
 822
 823         rcu_read_lock();
 824
 825         /* XXX: get sta belonging to dev */
 826         sta = sta_info_get(local, mac);
 827         if (!sta) {
 828                 rcu_read_unlock();
 829                 return -ENOENT;
 830         }
 831
 832         if (params->vlan && params->vlan != sta->sdata->dev) {
 833                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 834
 835                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 836                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 837                         rcu_read_unlock();
 838                         return -EINVAL;
 839                 }
 840
 841                 sta->sdata = vlansdata;
 842                 ieee80211_send_layer2_update(sta);
 843         }
 844
 845         sta_apply_parameters(local, sta, params);
 846
 847         rcu_read_unlock();
 848
 849         return 0;
 850 }
 851
 852 #ifdef CONFIG_MAC80211_MESH
 853 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 854                                  u8 *dst, u8 *next_hop)
 855 {
 856         struct ieee80211_local *local = wiphy_priv(wiphy);
 857         struct ieee80211_sub_if_data *sdata;
 858         struct mesh_path *mpath;
 859         struct sta_info *sta;
 860         int err;
 861
 862         if (!netif_running(dev))
 863                 return -ENETDOWN;
 864
 865         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 866
 867         if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
 868                 return -ENOTSUPP;
 869
 870         rcu_read_lock();
 871         sta = sta_info_get(local, next_hop);
 872         if (!sta) {
 873                 rcu_read_unlock();
 874                 return -ENOENT;
 875         }
 876
 877         err = mesh_path_add(dst, sdata);
 878         if (err) {
 879                 rcu_read_unlock();
 880                 return err;
 881         }
 882
 883         mpath = mesh_path_lookup(dst, sdata);
 884         if (!mpath) {
 885                 rcu_read_unlock();
 886                 return -ENXIO;
 887         }
 888         mesh_path_fix_nexthop(mpath, sta);
 889
 890         rcu_read_unlock();
 891         return 0;
 892 }
 893
 894 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 895                                  u8 *dst)
 896 {
 897         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 898
 899         if (dst)
 900                 return mesh_path_del(dst, sdata);
 901
 902         mesh_path_flush(sdata);
 903         return 0;
 904 }
 905
 906 static int ieee80211_change_mpath(struct wiphy *wiphy,
 907                                     struct net_device *dev,
 908                                     u8 *dst, u8 *next_hop)
 909 {
 910         struct ieee80211_local *local = wiphy_priv(wiphy);
 911         struct ieee80211_sub_if_data *sdata;
 912         struct mesh_path *mpath;
 913         struct sta_info *sta;
 914
 915         if (!netif_running(dev))
 916                 return -ENETDOWN;
 917
 918         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 919
 920         if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
 921                 return -ENOTSUPP;
 922
 923         rcu_read_lock();
 924
 925         sta = sta_info_get(local, next_hop);
 926         if (!sta) {
 927                 rcu_read_unlock();
 928                 return -ENOENT;
 929         }
 930
 931         mpath = mesh_path_lookup(dst, sdata);
 932         if (!mpath) {
 933                 rcu_read_unlock();
 934                 return -ENOENT;
 935         }
 936
 937         mesh_path_fix_nexthop(mpath, sta);
 938
 939         rcu_read_unlock();
 940         return 0;
 941 }
 942
 943 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 944                             struct mpath_info *pinfo)
 945 {
 946         if (mpath->next_hop)
 947                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 948         else
 949                 memset(next_hop, 0, ETH_ALEN);
 950
 951         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 952                         MPATH_INFO_DSN |
 953                         MPATH_INFO_METRIC |
 954                         MPATH_INFO_EXPTIME |
 955                         MPATH_INFO_DISCOVERY_TIMEOUT |
 956                         MPATH_INFO_DISCOVERY_RETRIES |
 957                         MPATH_INFO_FLAGS;
 958
 959         pinfo->frame_qlen = mpath->frame_queue.qlen;
 960         pinfo->dsn = mpath->dsn;
 961         pinfo->metric = mpath->metric;
 962         if (time_before(jiffies, mpath->exp_time))
 963                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 964         pinfo->discovery_timeout =
 965                         jiffies_to_msecs(mpath->discovery_timeout);
 966         pinfo->discovery_retries = mpath->discovery_retries;
 967         pinfo->flags = 0;
 968         if (mpath->flags & MESH_PATH_ACTIVE)
 969                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 970         if (mpath->flags & MESH_PATH_RESOLVING)
 971                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 972         if (mpath->flags & MESH_PATH_DSN_VALID)
 973                 pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID;
 974         if (mpath->flags & MESH_PATH_FIXED)
 975                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 976         if (mpath->flags & MESH_PATH_RESOLVING)
 977                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 978
 979         pinfo->flags = mpath->flags;
 980 }
 981
 982 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 983                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 984
 985 {
 986         struct ieee80211_sub_if_data *sdata;
 987         struct mesh_path *mpath;
 988
 989         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 990
 991         if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
 992                 return -ENOTSUPP;
 993
 994         rcu_read_lock();
 995         mpath = mesh_path_lookup(dst, sdata);
 996         if (!mpath) {
 997                 rcu_read_unlock();
 998                 return -ENOENT;
 999         }
1000         memcpy(dst, mpath->dst, ETH_ALEN);
1001         mpath_set_pinfo(mpath, next_hop, pinfo);
1002         rcu_read_unlock();
1003         return 0;
1004 }
1005
1006 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1007                                  int idx, u8 *dst, u8 *next_hop,
1008                                  struct mpath_info *pinfo)
1009 {
1010         struct ieee80211_sub_if_data *sdata;
1011         struct mesh_path *mpath;
1012
1013         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1014
1015         if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
1016                 return -ENOTSUPP;
1017
1018         rcu_read_lock();
1019         mpath = mesh_path_lookup_by_idx(idx, sdata);
1020         if (!mpath) {
1021                 rcu_read_unlock();
1022                 return -ENOENT;
1023         }
1024         memcpy(dst, mpath->dst, ETH_ALEN);
1025         mpath_set_pinfo(mpath, next_hop, pinfo);
1026         rcu_read_unlock();
1027         return 0;
1028 }
1029
1030 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1031                                 struct net_device *dev,
1032                                 struct mesh_config *conf)
1033 {
1034         struct ieee80211_sub_if_data *sdata;
1035         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1036
1037         if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
1038                 return -ENOTSUPP;
1039         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1040         return 0;
1041 }
1042
1043 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1044 {
1045         return (mask >> (parm-1)) & 0x1;
1046 }
1047
1048 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1049                                 struct net_device *dev,
1050                                 const struct mesh_config *nconf, u32 mask)
1051 {
1052         struct mesh_config *conf;
1053         struct ieee80211_sub_if_data *sdata;
1054         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1055
1056         if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
1057                 return -ENOTSUPP;
1058
1059         /* Set the config options which we are interested in setting */
1060         conf = &(sdata->u.mesh.mshcfg);
1061         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1062                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1063         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1064                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1065         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1066                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1067         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1068                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1069         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1070                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1071         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1072                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1073         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1074                 conf->auto_open_plinks = nconf->auto_open_plinks;
1075         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1076                 conf->dot11MeshHWMPmaxPREQretries =
1077                         nconf->dot11MeshHWMPmaxPREQretries;
1078         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1079                 conf->path_refresh_time = nconf->path_refresh_time;
1080         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1081                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1082         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1083                 conf->dot11MeshHWMPactivePathTimeout =
1084                         nconf->dot11MeshHWMPactivePathTimeout;
1085         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1086                 conf->dot11MeshHWMPpreqMinInterval =
1087                         nconf->dot11MeshHWMPpreqMinInterval;
1088         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1089                            mask))
1090                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1091                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1092         return 0;
1093 }
1094
1095 #endif
1096
1097 static int ieee80211_change_bss(struct wiphy *wiphy,
1098                                 struct net_device *dev,
1099                                 struct bss_parameters *params)
1100 {
1101         struct ieee80211_sub_if_data *sdata;
1102         u32 changed = 0;
1103
1104         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1105
1106         if (sdata->vif.type != NL80211_IFTYPE_AP)
1107                 return -EINVAL;
1108
1109         if (params->use_cts_prot >= 0) {
1110                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1111                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1112         }
1113         if (params->use_short_preamble >= 0) {
1114                 sdata->vif.bss_conf.use_short_preamble =
1115                         params->use_short_preamble;
1116                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1117         }
1118         if (params->use_short_slot_time >= 0) {
1119                 sdata->vif.bss_conf.use_short_slot =
1120                         params->use_short_slot_time;
1121                 changed |= BSS_CHANGED_ERP_SLOT;
1122         }
1123
1124         if (params->basic_rates) {
1125                 int i, j;
1126                 u32 rates = 0;
1127                 struct ieee80211_local *local = wiphy_priv(wiphy);
1128                 struct ieee80211_supported_band *sband =
1129                         wiphy->bands[local->oper_channel->band];
1130
1131                 for (i = 0; i < params->basic_rates_len; i++) {
1132                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1133                         for (j = 0; j < sband->n_bitrates; j++) {
1134                                 if (sband->bitrates[j].bitrate == rate)
1135                                         rates |= BIT(j);
1136                         }
1137                 }
1138                 sdata->vif.bss_conf.basic_rates = rates;
1139                 changed |= BSS_CHANGED_BASIC_RATES;
1140         }
1141
1142         ieee80211_bss_info_change_notify(sdata, changed);
1143
1144         return 0;
1145 }
1146
1147 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1148                                     struct ieee80211_txq_params *params)
1149 {
1150         struct ieee80211_local *local = wiphy_priv(wiphy);
1151         struct ieee80211_tx_queue_params p;
1152
1153         if (!local->ops->conf_tx)
1154                 return -EOPNOTSUPP;
1155
1156         memset(&p, 0, sizeof(p));
1157         p.aifs = params->aifs;
1158         p.cw_max = params->cwmax;
1159         p.cw_min = params->cwmin;
1160         p.txop = params->txop;
1161         if (local->ops->conf_tx(local_to_hw(local), params->queue, &p)) {
1162                 printk(KERN_DEBUG "%s: failed to set TX queue "
1163                        "parameters for queue %d\n", local->mdev->name,
1164                        params->queue);
1165                 return -EINVAL;
1166         }
1167
1168         return 0;
1169 }
1170
1171 static int ieee80211_set_channel(struct wiphy *wiphy,
1172                                  struct ieee80211_channel *chan,
1173                                  enum nl80211_channel_type channel_type)
1174 {
1175         struct ieee80211_local *local = wiphy_priv(wiphy);
1176
1177         local->oper_channel = chan;
1178         local->oper_channel_type = channel_type;
1179
1180         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1181 }
1182
1183 static int set_mgmt_extra_ie_sta(struct ieee80211_sub_if_data *sdata,
1184                                  u8 subtype, u8 *ies, size_t ies_len)
1185 {
1186         struct ieee80211_local *local = sdata->local;
1187         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
1188
1189         switch (subtype) {
1190         case IEEE80211_STYPE_PROBE_REQ >> 4:
1191                 if (local->ops->hw_scan)
1192                         break;
1193                 kfree(ifmgd->ie_probereq);
1194                 ifmgd->ie_probereq = ies;
1195                 ifmgd->ie_probereq_len = ies_len;
1196                 return 0;
1197         case IEEE80211_STYPE_PROBE_RESP >> 4:
1198                 kfree(ifmgd->ie_proberesp);
1199                 ifmgd->ie_proberesp = ies;
1200                 ifmgd->ie_proberesp_len = ies_len;
1201                 return 0;
1202         case IEEE80211_STYPE_AUTH >> 4:
1203                 kfree(ifmgd->ie_auth);
1204                 ifmgd->ie_auth = ies;
1205                 ifmgd->ie_auth_len = ies_len;
1206                 return 0;
1207         case IEEE80211_STYPE_ASSOC_REQ >> 4:
1208                 kfree(ifmgd->ie_assocreq);
1209                 ifmgd->ie_assocreq = ies;
1210                 ifmgd->ie_assocreq_len = ies_len;
1211                 return 0;
1212         case IEEE80211_STYPE_REASSOC_REQ >> 4:
1213                 kfree(ifmgd->ie_reassocreq);
1214                 ifmgd->ie_reassocreq = ies;
1215                 ifmgd->ie_reassocreq_len = ies_len;
1216                 return 0;
1217         case IEEE80211_STYPE_DEAUTH >> 4:
1218                 kfree(ifmgd->ie_deauth);
1219                 ifmgd->ie_deauth = ies;
1220                 ifmgd->ie_deauth_len = ies_len;
1221                 return 0;
1222         case IEEE80211_STYPE_DISASSOC >> 4:
1223                 kfree(ifmgd->ie_disassoc);
1224                 ifmgd->ie_disassoc = ies;
1225                 ifmgd->ie_disassoc_len = ies_len;
1226                 return 0;
1227         }
1228
1229         return -EOPNOTSUPP;
1230 }
1231
1232 static int ieee80211_set_mgmt_extra_ie(struct wiphy *wiphy,
1233                                        struct net_device *dev,
1234                                        struct mgmt_extra_ie_params *params)
1235 {
1236         struct ieee80211_sub_if_data *sdata;
1237         u8 *ies;
1238         size_t ies_len;
1239         int ret = -EOPNOTSUPP;
1240
1241         if (params->ies) {
1242                 ies = kmemdup(params->ies, params->ies_len, GFP_KERNEL);
1243                 if (ies == NULL)
1244                         return -ENOMEM;
1245                 ies_len = params->ies_len;
1246         } else {
1247                 ies = NULL;
1248                 ies_len = 0;
1249         }
1250
1251         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1252
1253         switch (sdata->vif.type) {
1254         case NL80211_IFTYPE_STATION:
1255                 ret = set_mgmt_extra_ie_sta(sdata, params->subtype,
1256                                             ies, ies_len);
1257                 break;
1258         default:
1259                 ret = -EOPNOTSUPP;
1260                 break;
1261         }
1262
1263         if (ret)
1264                 kfree(ies);
1265         return ret;
1266 }
1267
1268 #ifdef CONFIG_PM
1269 static int ieee80211_suspend(struct wiphy *wiphy)
1270 {
1271         return __ieee80211_suspend(wiphy_priv(wiphy));
1272 }
1273
1274 static int ieee80211_resume(struct wiphy *wiphy)
1275 {
1276         return __ieee80211_resume(wiphy_priv(wiphy));
1277 }
1278 #else
1279 #define ieee80211_suspend NULL
1280 #define ieee80211_resume NULL
1281 #endif
1282
1283 static int ieee80211_scan(struct wiphy *wiphy,
1284                           struct net_device *dev,
1285                           struct cfg80211_scan_request *req)
1286 {
1287         struct ieee80211_sub_if_data *sdata;
1288
1289         if (!netif_running(dev))
1290                 return -ENETDOWN;
1291
1292         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1293
1294         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1295             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1296             sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
1297                 return -EOPNOTSUPP;
1298
1299         return ieee80211_request_scan(sdata, req);
1300 }
1301
1302 struct cfg80211_ops mac80211_config_ops = {
1303         .add_virtual_intf = ieee80211_add_iface,
1304         .del_virtual_intf = ieee80211_del_iface,
1305         .change_virtual_intf = ieee80211_change_iface,
1306         .add_key = ieee80211_add_key,
1307         .del_key = ieee80211_del_key,
1308         .get_key = ieee80211_get_key,
1309         .set_default_key = ieee80211_config_default_key,
1310         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1311         .add_beacon = ieee80211_add_beacon,
1312         .set_beacon = ieee80211_set_beacon,
1313         .del_beacon = ieee80211_del_beacon,
1314         .add_station = ieee80211_add_station,
1315         .del_station = ieee80211_del_station,
1316         .change_station = ieee80211_change_station,
1317         .get_station = ieee80211_get_station,
1318         .dump_station = ieee80211_dump_station,
1319 #ifdef CONFIG_MAC80211_MESH
1320         .add_mpath = ieee80211_add_mpath,
1321         .del_mpath = ieee80211_del_mpath,
1322         .change_mpath = ieee80211_change_mpath,
1323         .get_mpath = ieee80211_get_mpath,
1324         .dump_mpath = ieee80211_dump_mpath,
1325         .set_mesh_params = ieee80211_set_mesh_params,
1326         .get_mesh_params = ieee80211_get_mesh_params,
1327 #endif
1328         .change_bss = ieee80211_change_bss,
1329         .set_txq_params = ieee80211_set_txq_params,
1330         .set_channel = ieee80211_set_channel,
1331         .set_mgmt_extra_ie = ieee80211_set_mgmt_extra_ie,
1332         .suspend = ieee80211_suspend,
1333         .resume = ieee80211_resume,
1334         .scan = ieee80211_scan,
1335 };