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, int ifindex)
  61 {
  62         struct net_device *dev;
  63         struct ieee80211_sub_if_data *sdata;
  64
  65         /* we're under RTNL */
  66         dev = __dev_get_by_index(&init_net, ifindex);
  67         if (!dev)
  68                 return -ENODEV;
  69
  70         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  71
  72         ieee80211_if_remove(sdata);
  73
  74         return 0;
  75 }
  76
  77 static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
  78                                   enum nl80211_iftype type, u32 *flags,
  79                                   struct vif_params *params)
  80 {
  81         struct net_device *dev;
  82         struct ieee80211_sub_if_data *sdata;
  83         int ret;
  84
  85         /* we're under RTNL */
  86         dev = __dev_get_by_index(&init_net, ifindex);
  87         if (!dev)
  88                 return -ENODEV;
  89
  90         if (!nl80211_type_check(type))
  91                 return -EINVAL;
  92
  93         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  94
  95         ret = ieee80211_if_change_type(sdata, type);
  96         if (ret)
  97                 return ret;
  98
  99         if (netif_running(sdata->dev))
 100                 return -EBUSY;
 101
 102         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
 103                 ieee80211_sdata_set_mesh_id(sdata,
 104                                             params->mesh_id_len,
 105                                             params->mesh_id);
 106
 107         if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
 108                 return 0;
 109
 110         sdata->u.mntr_flags = *flags;
 111         return 0;
 112 }
 113
 114 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 115                              u8 key_idx, const u8 *mac_addr,
 116                              struct key_params *params)
 117 {
 118         struct ieee80211_sub_if_data *sdata;
 119         struct sta_info *sta = NULL;
 120         enum ieee80211_key_alg alg;
 121         struct ieee80211_key *key;
 122         int err;
 123
 124         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 125
 126         switch (params->cipher) {
 127         case WLAN_CIPHER_SUITE_WEP40:
 128         case WLAN_CIPHER_SUITE_WEP104:
 129                 alg = ALG_WEP;
 130                 break;
 131         case WLAN_CIPHER_SUITE_TKIP:
 132                 alg = ALG_TKIP;
 133                 break;
 134         case WLAN_CIPHER_SUITE_CCMP:
 135                 alg = ALG_CCMP;
 136                 break;
 137         case WLAN_CIPHER_SUITE_AES_CMAC:
 138                 alg = ALG_AES_CMAC;
 139                 break;
 140         default:
 141                 return -EINVAL;
 142         }
 143
 144         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
 145                                   params->seq_len, params->seq);
 146         if (!key)
 147                 return -ENOMEM;
 148
 149         rcu_read_lock();
 150
 151         if (mac_addr) {
 152                 sta = sta_info_get(sdata->local, mac_addr);
 153                 if (!sta) {
 154                         ieee80211_key_free(key);
 155                         err = -ENOENT;
 156                         goto out_unlock;
 157                 }
 158         }
 159
 160         ieee80211_key_link(key, sdata, sta);
 161
 162         err = 0;
 163  out_unlock:
 164         rcu_read_unlock();
 165
 166         return err;
 167 }
 168
 169 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 170                              u8 key_idx, const u8 *mac_addr)
 171 {
 172         struct ieee80211_sub_if_data *sdata;
 173         struct sta_info *sta;
 174         int ret;
 175
 176         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 177
 178         rcu_read_lock();
 179
 180         if (mac_addr) {
 181                 ret = -ENOENT;
 182
 183                 sta = sta_info_get(sdata->local, mac_addr);
 184                 if (!sta)
 185                         goto out_unlock;
 186
 187                 if (sta->key) {
 188                         ieee80211_key_free(sta->key);
 189                         WARN_ON(sta->key);
 190                         ret = 0;
 191                 }
 192
 193                 goto out_unlock;
 194         }
 195
 196         if (!sdata->keys[key_idx]) {
 197                 ret = -ENOENT;
 198                 goto out_unlock;
 199         }
 200
 201         ieee80211_key_free(sdata->keys[key_idx]);
 202         WARN_ON(sdata->keys[key_idx]);
 203
 204         ret = 0;
 205  out_unlock:
 206         rcu_read_unlock();
 207
 208         return ret;
 209 }
 210
 211 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 212                              u8 key_idx, const u8 *mac_addr, void *cookie,
 213                              void (*callback)(void *cookie,
 214                                               struct key_params *params))
 215 {
 216         struct ieee80211_sub_if_data *sdata;
 217         struct sta_info *sta = NULL;
 218         u8 seq[6] = {0};
 219         struct key_params params;
 220         struct ieee80211_key *key;
 221         u32 iv32;
 222         u16 iv16;
 223         int err = -ENOENT;
 224
 225         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 226
 227         rcu_read_lock();
 228
 229         if (mac_addr) {
 230                 sta = sta_info_get(sdata->local, mac_addr);
 231                 if (!sta)
 232                         goto out;
 233
 234                 key = sta->key;
 235         } else
 236                 key = sdata->keys[key_idx];
 237
 238         if (!key)
 239                 goto out;
 240
 241         memset(&params, 0, sizeof(params));
 242
 243         switch (key->conf.alg) {
 244         case ALG_TKIP:
 245                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
 246
 247                 iv32 = key->u.tkip.tx.iv32;
 248                 iv16 = key->u.tkip.tx.iv16;
 249
 250                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 251                         drv_get_tkip_seq(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->vif.bss_conf.beacon_int != params->interval)) {
 456                 sdata->vif.bss_conf.beacon_int = params->interval;
 457                 ieee80211_bss_info_change_notify(sdata,
 458                                                  BSS_CHANGED_BEACON_INT);
 459         }
 460
 461         /* Need to have a beacon head if we don't have one yet */
 462         if (!params->head && !old)
 463                 return err;
 464
 465         /* sorry, no way to start beaconing without dtim period */
 466         if (!params->dtim_period && !old)
 467                 return err;
 468
 469         /* new or old head? */
 470         if (params->head)
 471                 new_head_len = params->head_len;
 472         else
 473                 new_head_len = old->head_len;
 474
 475         /* new or old tail? */
 476         if (params->tail || !old)
 477                 /* params->tail_len will be zero for !params->tail */
 478                 new_tail_len = params->tail_len;
 479         else
 480                 new_tail_len = old->tail_len;
 481
 482         size = sizeof(*new) + new_head_len + new_tail_len;
 483
 484         new = kzalloc(size, GFP_KERNEL);
 485         if (!new)
 486                 return -ENOMEM;
 487
 488         /* start filling the new info now */
 489
 490         /* new or old dtim period? */
 491         if (params->dtim_period)
 492                 new->dtim_period = params->dtim_period;
 493         else
 494                 new->dtim_period = old->dtim_period;
 495
 496         /*
 497          * pointers go into the block we allocated,
 498          * memory is | beacon_data | head | tail |
 499          */
 500         new->head = ((u8 *) new) + sizeof(*new);
 501         new->tail = new->head + new_head_len;
 502         new->head_len = new_head_len;
 503         new->tail_len = new_tail_len;
 504
 505         /* copy in head */
 506         if (params->head)
 507                 memcpy(new->head, params->head, new_head_len);
 508         else
 509                 memcpy(new->head, old->head, new_head_len);
 510
 511         /* copy in optional tail */
 512         if (params->tail)
 513                 memcpy(new->tail, params->tail, new_tail_len);
 514         else
 515                 if (old)
 516                         memcpy(new->tail, old->tail, new_tail_len);
 517
 518         rcu_assign_pointer(sdata->u.ap.beacon, new);
 519
 520         synchronize_rcu();
 521
 522         kfree(old);
 523
 524         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 525                                                 BSS_CHANGED_BEACON);
 526         return 0;
 527 }
 528
 529 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 530                                 struct beacon_parameters *params)
 531 {
 532         struct ieee80211_sub_if_data *sdata;
 533         struct beacon_data *old;
 534
 535         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 536
 537         old = sdata->u.ap.beacon;
 538
 539         if (old)
 540                 return -EALREADY;
 541
 542         return ieee80211_config_beacon(sdata, params);
 543 }
 544
 545 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 546                                 struct beacon_parameters *params)
 547 {
 548         struct ieee80211_sub_if_data *sdata;
 549         struct beacon_data *old;
 550
 551         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 552
 553         old = sdata->u.ap.beacon;
 554
 555         if (!old)
 556                 return -ENOENT;
 557
 558         return ieee80211_config_beacon(sdata, params);
 559 }
 560
 561 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 562 {
 563         struct ieee80211_sub_if_data *sdata;
 564         struct beacon_data *old;
 565
 566         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 567
 568         old = sdata->u.ap.beacon;
 569
 570         if (!old)
 571                 return -ENOENT;
 572
 573         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 574         synchronize_rcu();
 575         kfree(old);
 576
 577         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 578         return 0;
 579 }
 580
 581 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 582 struct iapp_layer2_update {
 583         u8 da[ETH_ALEN];        /* broadcast */
 584         u8 sa[ETH_ALEN];        /* STA addr */
 585         __be16 len;             /* 6 */
 586         u8 dsap;                /* 0 */
 587         u8 ssap;                /* 0 */
 588         u8 control;
 589         u8 xid_info[3];
 590 } __attribute__ ((packed));
 591
 592 static void ieee80211_send_layer2_update(struct sta_info *sta)
 593 {
 594         struct iapp_layer2_update *msg;
 595         struct sk_buff *skb;
 596
 597         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 598          * bridge devices */
 599
 600         skb = dev_alloc_skb(sizeof(*msg));
 601         if (!skb)
 602                 return;
 603         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 604
 605         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 606          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 607
 608         memset(msg->da, 0xff, ETH_ALEN);
 609         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 610         msg->len = htons(6);
 611         msg->dsap = 0;
 612         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 613         msg->control = 0xaf;    /* XID response lsb.1111F101.
 614                                  * F=0 (no poll command; unsolicited frame) */
 615         msg->xid_info[0] = 0x81;        /* XID format identifier */
 616         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 617         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 618
 619         skb->dev = sta->sdata->dev;
 620         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 621         memset(skb->cb, 0, sizeof(skb->cb));
 622         netif_rx(skb);
 623 }
 624
 625 static void sta_apply_parameters(struct ieee80211_local *local,
 626                                  struct sta_info *sta,
 627                                  struct station_parameters *params)
 628 {
 629         u32 rates;
 630         int i, j;
 631         struct ieee80211_supported_band *sband;
 632         struct ieee80211_sub_if_data *sdata = sta->sdata;
 633         u32 mask, set;
 634
 635         sband = local->hw.wiphy->bands[local->oper_channel->band];
 636
 637         spin_lock_bh(&sta->lock);
 638         mask = params->sta_flags_mask;
 639         set = params->sta_flags_set;
 640
 641         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 642                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 643                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 644                         sta->flags |= WLAN_STA_AUTHORIZED;
 645         }
 646
 647         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 648                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 649                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 650                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 651         }
 652
 653         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 654                 sta->flags &= ~WLAN_STA_WME;
 655                 if (set & BIT(NL80211_STA_FLAG_WME))
 656                         sta->flags |= WLAN_STA_WME;
 657         }
 658
 659         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 660                 sta->flags &= ~WLAN_STA_MFP;
 661                 if (set & BIT(NL80211_STA_FLAG_MFP))
 662                         sta->flags |= WLAN_STA_MFP;
 663         }
 664         spin_unlock_bh(&sta->lock);
 665
 666         /*
 667          * cfg80211 validates this (1-2007) and allows setting the AID
 668          * only when creating a new station entry
 669          */
 670         if (params->aid)
 671                 sta->sta.aid = params->aid;
 672
 673         /*
 674          * FIXME: updating the following information is racy when this
 675          *        function is called from ieee80211_change_station().
 676          *        However, all this information should be static so
 677          *        maybe we should just reject attemps to change it.
 678          */
 679
 680         if (params->listen_interval >= 0)
 681                 sta->listen_interval = params->listen_interval;
 682
 683         if (params->supported_rates) {
 684                 rates = 0;
 685
 686                 for (i = 0; i < params->supported_rates_len; i++) {
 687                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 688                         for (j = 0; j < sband->n_bitrates; j++) {
 689                                 if (sband->bitrates[j].bitrate == rate)
 690                                         rates |= BIT(j);
 691                         }
 692                 }
 693                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 694         }
 695
 696         if (params->ht_capa)
 697                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 698                                                   params->ht_capa,
 699                                                   &sta->sta.ht_cap);
 700
 701         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 702                 switch (params->plink_action) {
 703                 case PLINK_ACTION_OPEN:
 704                         mesh_plink_open(sta);
 705                         break;
 706                 case PLINK_ACTION_BLOCK:
 707                         mesh_plink_block(sta);
 708                         break;
 709                 }
 710         }
 711 }
 712
 713 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 714                                  u8 *mac, struct station_parameters *params)
 715 {
 716         struct ieee80211_local *local = wiphy_priv(wiphy);
 717         struct sta_info *sta;
 718         struct ieee80211_sub_if_data *sdata;
 719         int err;
 720         int layer2_update;
 721
 722         if (params->vlan) {
 723                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 724
 725                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 726                     sdata->vif.type != NL80211_IFTYPE_AP)
 727                         return -EINVAL;
 728         } else
 729                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 730
 731         if (compare_ether_addr(mac, dev->dev_addr) == 0)
 732                 return -EINVAL;
 733
 734         if (is_multicast_ether_addr(mac))
 735                 return -EINVAL;
 736
 737         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 738         if (!sta)
 739                 return -ENOMEM;
 740
 741         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 742
 743         sta_apply_parameters(local, sta, params);
 744
 745         rate_control_rate_init(sta);
 746
 747         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 748                 sdata->vif.type == NL80211_IFTYPE_AP;
 749
 750         rcu_read_lock();
 751
 752         err = sta_info_insert(sta);
 753         if (err) {
 754                 /* STA has been freed */
 755                 if (err == -EEXIST && layer2_update) {
 756                         /* Need to update layer 2 devices on reassociation */
 757                         sta = sta_info_get(local, mac);
 758                         if (sta)
 759                                 ieee80211_send_layer2_update(sta);
 760                 }
 761                 rcu_read_unlock();
 762                 return err;
 763         }
 764
 765         if (layer2_update)
 766                 ieee80211_send_layer2_update(sta);
 767
 768         rcu_read_unlock();
 769
 770         return 0;
 771 }
 772
 773 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 774                                  u8 *mac)
 775 {
 776         struct ieee80211_local *local = wiphy_priv(wiphy);
 777         struct ieee80211_sub_if_data *sdata;
 778         struct sta_info *sta;
 779
 780         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 781
 782         if (mac) {
 783                 rcu_read_lock();
 784
 785                 /* XXX: get sta belonging to dev */
 786                 sta = sta_info_get(local, mac);
 787                 if (!sta) {
 788                         rcu_read_unlock();
 789                         return -ENOENT;
 790                 }
 791
 792                 sta_info_unlink(&sta);
 793                 rcu_read_unlock();
 794
 795                 sta_info_destroy(sta);
 796         } else
 797                 sta_info_flush(local, sdata);
 798
 799         return 0;
 800 }
 801
 802 static int ieee80211_change_station(struct wiphy *wiphy,
 803                                     struct net_device *dev,
 804                                     u8 *mac,
 805                                     struct station_parameters *params)
 806 {
 807         struct ieee80211_local *local = wiphy_priv(wiphy);
 808         struct sta_info *sta;
 809         struct ieee80211_sub_if_data *vlansdata;
 810
 811         rcu_read_lock();
 812
 813         /* XXX: get sta belonging to dev */
 814         sta = sta_info_get(local, mac);
 815         if (!sta) {
 816                 rcu_read_unlock();
 817                 return -ENOENT;
 818         }
 819
 820         if (params->vlan && params->vlan != sta->sdata->dev) {
 821                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 822
 823                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 824                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 825                         rcu_read_unlock();
 826                         return -EINVAL;
 827                 }
 828
 829                 sta->sdata = vlansdata;
 830                 ieee80211_send_layer2_update(sta);
 831         }
 832
 833         sta_apply_parameters(local, sta, params);
 834
 835         rcu_read_unlock();
 836
 837         return 0;
 838 }
 839
 840 #ifdef CONFIG_MAC80211_MESH
 841 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 842                                  u8 *dst, u8 *next_hop)
 843 {
 844         struct ieee80211_local *local = wiphy_priv(wiphy);
 845         struct ieee80211_sub_if_data *sdata;
 846         struct mesh_path *mpath;
 847         struct sta_info *sta;
 848         int err;
 849
 850         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 851
 852         rcu_read_lock();
 853         sta = sta_info_get(local, next_hop);
 854         if (!sta) {
 855                 rcu_read_unlock();
 856                 return -ENOENT;
 857         }
 858
 859         err = mesh_path_add(dst, sdata);
 860         if (err) {
 861                 rcu_read_unlock();
 862                 return err;
 863         }
 864
 865         mpath = mesh_path_lookup(dst, sdata);
 866         if (!mpath) {
 867                 rcu_read_unlock();
 868                 return -ENXIO;
 869         }
 870         mesh_path_fix_nexthop(mpath, sta);
 871
 872         rcu_read_unlock();
 873         return 0;
 874 }
 875
 876 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 877                                  u8 *dst)
 878 {
 879         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 880
 881         if (dst)
 882                 return mesh_path_del(dst, sdata);
 883
 884         mesh_path_flush(sdata);
 885         return 0;
 886 }
 887
 888 static int ieee80211_change_mpath(struct wiphy *wiphy,
 889                                     struct net_device *dev,
 890                                     u8 *dst, u8 *next_hop)
 891 {
 892         struct ieee80211_local *local = wiphy_priv(wiphy);
 893         struct ieee80211_sub_if_data *sdata;
 894         struct mesh_path *mpath;
 895         struct sta_info *sta;
 896
 897         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 898
 899         rcu_read_lock();
 900
 901         sta = sta_info_get(local, next_hop);
 902         if (!sta) {
 903                 rcu_read_unlock();
 904                 return -ENOENT;
 905         }
 906
 907         mpath = mesh_path_lookup(dst, sdata);
 908         if (!mpath) {
 909                 rcu_read_unlock();
 910                 return -ENOENT;
 911         }
 912
 913         mesh_path_fix_nexthop(mpath, sta);
 914
 915         rcu_read_unlock();
 916         return 0;
 917 }
 918
 919 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 920                             struct mpath_info *pinfo)
 921 {
 922         if (mpath->next_hop)
 923                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 924         else
 925                 memset(next_hop, 0, ETH_ALEN);
 926
 927         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 928                         MPATH_INFO_DSN |
 929                         MPATH_INFO_METRIC |
 930                         MPATH_INFO_EXPTIME |
 931                         MPATH_INFO_DISCOVERY_TIMEOUT |
 932                         MPATH_INFO_DISCOVERY_RETRIES |
 933                         MPATH_INFO_FLAGS;
 934
 935         pinfo->frame_qlen = mpath->frame_queue.qlen;
 936         pinfo->dsn = mpath->dsn;
 937         pinfo->metric = mpath->metric;
 938         if (time_before(jiffies, mpath->exp_time))
 939                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 940         pinfo->discovery_timeout =
 941                         jiffies_to_msecs(mpath->discovery_timeout);
 942         pinfo->discovery_retries = mpath->discovery_retries;
 943         pinfo->flags = 0;
 944         if (mpath->flags & MESH_PATH_ACTIVE)
 945                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 946         if (mpath->flags & MESH_PATH_RESOLVING)
 947                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 948         if (mpath->flags & MESH_PATH_DSN_VALID)
 949                 pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID;
 950         if (mpath->flags & MESH_PATH_FIXED)
 951                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 952         if (mpath->flags & MESH_PATH_RESOLVING)
 953                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 954
 955         pinfo->flags = mpath->flags;
 956 }
 957
 958 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 959                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 960
 961 {
 962         struct ieee80211_sub_if_data *sdata;
 963         struct mesh_path *mpath;
 964
 965         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 966
 967         rcu_read_lock();
 968         mpath = mesh_path_lookup(dst, sdata);
 969         if (!mpath) {
 970                 rcu_read_unlock();
 971                 return -ENOENT;
 972         }
 973         memcpy(dst, mpath->dst, ETH_ALEN);
 974         mpath_set_pinfo(mpath, next_hop, pinfo);
 975         rcu_read_unlock();
 976         return 0;
 977 }
 978
 979 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 980                                  int idx, u8 *dst, u8 *next_hop,
 981                                  struct mpath_info *pinfo)
 982 {
 983         struct ieee80211_sub_if_data *sdata;
 984         struct mesh_path *mpath;
 985
 986         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 987
 988         rcu_read_lock();
 989         mpath = mesh_path_lookup_by_idx(idx, sdata);
 990         if (!mpath) {
 991                 rcu_read_unlock();
 992                 return -ENOENT;
 993         }
 994         memcpy(dst, mpath->dst, ETH_ALEN);
 995         mpath_set_pinfo(mpath, next_hop, pinfo);
 996         rcu_read_unlock();
 997         return 0;
 998 }
 999
1000 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1001                                 struct net_device *dev,
1002                                 struct mesh_config *conf)
1003 {
1004         struct ieee80211_sub_if_data *sdata;
1005         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1006
1007         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1008         return 0;
1009 }
1010
1011 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1012 {
1013         return (mask >> (parm-1)) & 0x1;
1014 }
1015
1016 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1017                                 struct net_device *dev,
1018                                 const struct mesh_config *nconf, u32 mask)
1019 {
1020         struct mesh_config *conf;
1021         struct ieee80211_sub_if_data *sdata;
1022         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1023
1024         /* Set the config options which we are interested in setting */
1025         conf = &(sdata->u.mesh.mshcfg);
1026         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1027                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1028         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1029                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1030         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1031                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1032         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1033                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1034         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1035                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1036         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1037                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1038         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1039                 conf->auto_open_plinks = nconf->auto_open_plinks;
1040         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1041                 conf->dot11MeshHWMPmaxPREQretries =
1042                         nconf->dot11MeshHWMPmaxPREQretries;
1043         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1044                 conf->path_refresh_time = nconf->path_refresh_time;
1045         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1046                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1047         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1048                 conf->dot11MeshHWMPactivePathTimeout =
1049                         nconf->dot11MeshHWMPactivePathTimeout;
1050         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1051                 conf->dot11MeshHWMPpreqMinInterval =
1052                         nconf->dot11MeshHWMPpreqMinInterval;
1053         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1054                            mask))
1055                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1056                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1057         return 0;
1058 }
1059
1060 #endif
1061
1062 static int ieee80211_change_bss(struct wiphy *wiphy,
1063                                 struct net_device *dev,
1064                                 struct bss_parameters *params)
1065 {
1066         struct ieee80211_sub_if_data *sdata;
1067         u32 changed = 0;
1068
1069         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1070
1071         if (params->use_cts_prot >= 0) {
1072                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1073                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1074         }
1075         if (params->use_short_preamble >= 0) {
1076                 sdata->vif.bss_conf.use_short_preamble =
1077                         params->use_short_preamble;
1078                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1079         }
1080         if (params->use_short_slot_time >= 0) {
1081                 sdata->vif.bss_conf.use_short_slot =
1082                         params->use_short_slot_time;
1083                 changed |= BSS_CHANGED_ERP_SLOT;
1084         }
1085
1086         if (params->basic_rates) {
1087                 int i, j;
1088                 u32 rates = 0;
1089                 struct ieee80211_local *local = wiphy_priv(wiphy);
1090                 struct ieee80211_supported_band *sband =
1091                         wiphy->bands[local->oper_channel->band];
1092
1093                 for (i = 0; i < params->basic_rates_len; i++) {
1094                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1095                         for (j = 0; j < sband->n_bitrates; j++) {
1096                                 if (sband->bitrates[j].bitrate == rate)
1097                                         rates |= BIT(j);
1098                         }
1099                 }
1100                 sdata->vif.bss_conf.basic_rates = rates;
1101                 changed |= BSS_CHANGED_BASIC_RATES;
1102         }
1103
1104         ieee80211_bss_info_change_notify(sdata, changed);
1105
1106         return 0;
1107 }
1108
1109 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1110                                     struct ieee80211_txq_params *params)
1111 {
1112         struct ieee80211_local *local = wiphy_priv(wiphy);
1113         struct ieee80211_tx_queue_params p;
1114
1115         if (!local->ops->conf_tx)
1116                 return -EOPNOTSUPP;
1117
1118         memset(&p, 0, sizeof(p));
1119         p.aifs = params->aifs;
1120         p.cw_max = params->cwmax;
1121         p.cw_min = params->cwmin;
1122         p.txop = params->txop;
1123         if (drv_conf_tx(local, params->queue, &p)) {
1124                 printk(KERN_DEBUG "%s: failed to set TX queue "
1125                        "parameters for queue %d\n", local->mdev->name,
1126                        params->queue);
1127                 return -EINVAL;
1128         }
1129
1130         return 0;
1131 }
1132
1133 static int ieee80211_set_channel(struct wiphy *wiphy,
1134                                  struct ieee80211_channel *chan,
1135                                  enum nl80211_channel_type channel_type)
1136 {
1137         struct ieee80211_local *local = wiphy_priv(wiphy);
1138
1139         local->oper_channel = chan;
1140         local->oper_channel_type = channel_type;
1141
1142         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1143 }
1144
1145 #ifdef CONFIG_PM
1146 static int ieee80211_suspend(struct wiphy *wiphy)
1147 {
1148         return __ieee80211_suspend(wiphy_priv(wiphy));
1149 }
1150
1151 static int ieee80211_resume(struct wiphy *wiphy)
1152 {
1153         return __ieee80211_resume(wiphy_priv(wiphy));
1154 }
1155 #else
1156 #define ieee80211_suspend NULL
1157 #define ieee80211_resume NULL
1158 #endif
1159
1160 static int ieee80211_scan(struct wiphy *wiphy,
1161                           struct net_device *dev,
1162                           struct cfg80211_scan_request *req)
1163 {
1164         struct ieee80211_sub_if_data *sdata;
1165
1166         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1167
1168         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1169             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1170             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1171             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1172                 return -EOPNOTSUPP;
1173
1174         return ieee80211_request_scan(sdata, req);
1175 }
1176
1177 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1178                           struct cfg80211_auth_request *req)
1179 {
1180         struct ieee80211_sub_if_data *sdata;
1181
1182         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1183
1184         switch (req->auth_type) {
1185         case NL80211_AUTHTYPE_OPEN_SYSTEM:
1186                 sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_OPEN;
1187                 break;
1188         case NL80211_AUTHTYPE_SHARED_KEY:
1189                 sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_SHARED_KEY;
1190                 break;
1191         case NL80211_AUTHTYPE_FT:
1192                 sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_FT;
1193                 break;
1194         case NL80211_AUTHTYPE_NETWORK_EAP:
1195                 sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_LEAP;
1196                 break;
1197         default:
1198                 return -EOPNOTSUPP;
1199         }
1200
1201         memcpy(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN);
1202         sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
1203         sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET;
1204
1205         /* TODO: req->chan */
1206         sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL;
1207
1208         if (req->ssid) {
1209                 sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET;
1210                 memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len);
1211                 sdata->u.mgd.ssid_len = req->ssid_len;
1212                 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
1213         }
1214
1215         kfree(sdata->u.mgd.sme_auth_ie);
1216         sdata->u.mgd.sme_auth_ie = NULL;
1217         sdata->u.mgd.sme_auth_ie_len = 0;
1218         if (req->ie) {
1219                 sdata->u.mgd.sme_auth_ie = kmalloc(req->ie_len, GFP_KERNEL);
1220                 if (sdata->u.mgd.sme_auth_ie == NULL)
1221                         return -ENOMEM;
1222                 memcpy(sdata->u.mgd.sme_auth_ie, req->ie, req->ie_len);
1223                 sdata->u.mgd.sme_auth_ie_len = req->ie_len;
1224         }
1225
1226         sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME;
1227         sdata->u.mgd.state = IEEE80211_STA_MLME_DIRECT_PROBE;
1228         ieee80211_sta_req_auth(sdata);
1229         return 0;
1230 }
1231
1232 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1233                            struct cfg80211_assoc_request *req)
1234 {
1235         struct ieee80211_sub_if_data *sdata;
1236         int ret;
1237
1238         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1239
1240         if (memcmp(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN) != 0 ||
1241             !(sdata->u.mgd.flags & IEEE80211_STA_AUTHENTICATED))
1242                 return -ENOLINK; /* not authenticated */
1243
1244         sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
1245         sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET;
1246
1247         /* TODO: req->chan */
1248         sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL;
1249
1250         if (req->ssid) {
1251                 sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET;
1252                 memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len);
1253                 sdata->u.mgd.ssid_len = req->ssid_len;
1254                 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
1255         } else
1256                 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL;
1257
1258         ret = ieee80211_sta_set_extra_ie(sdata, req->ie, req->ie_len);
1259         if (ret && ret != -EALREADY)
1260                 return ret;
1261
1262         if (req->use_mfp) {
1263                 sdata->u.mgd.mfp = IEEE80211_MFP_REQUIRED;
1264                 sdata->u.mgd.flags |= IEEE80211_STA_MFP_ENABLED;
1265         } else {
1266                 sdata->u.mgd.mfp = IEEE80211_MFP_DISABLED;
1267                 sdata->u.mgd.flags &= ~IEEE80211_STA_MFP_ENABLED;
1268         }
1269
1270         if (req->control_port)
1271                 sdata->u.mgd.flags |= IEEE80211_STA_CONTROL_PORT;
1272         else
1273                 sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
1274
1275         sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME;
1276         sdata->u.mgd.state = IEEE80211_STA_MLME_ASSOCIATE;
1277         ieee80211_sta_req_auth(sdata);
1278         return 0;
1279 }
1280
1281 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1282                             struct cfg80211_deauth_request *req)
1283 {
1284         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1285
1286         /* TODO: req->ie, req->peer_addr */
1287         return ieee80211_sta_deauthenticate(sdata, req->reason_code);
1288 }
1289
1290 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1291                               struct cfg80211_disassoc_request *req)
1292 {
1293         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1294
1295         /* TODO: req->ie, req->peer_addr */
1296         return ieee80211_sta_disassociate(sdata, req->reason_code);
1297 }
1298
1299 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1300                                struct cfg80211_ibss_params *params)
1301 {
1302         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1303
1304         return ieee80211_ibss_join(sdata, params);
1305 }
1306
1307 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1308 {
1309         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1310
1311         return ieee80211_ibss_leave(sdata);
1312 }
1313
1314 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1315 {
1316         struct ieee80211_local *local = wiphy_priv(wiphy);
1317         int err;
1318
1319         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1320                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1321
1322                 if (err)
1323                         return err;
1324         }
1325
1326         if (changed & WIPHY_PARAM_RETRY_SHORT)
1327                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1328         if (changed & WIPHY_PARAM_RETRY_LONG)
1329                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1330         if (changed &
1331             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1332                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1333
1334         return 0;
1335 }
1336
1337 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1338                                   enum tx_power_setting type, int dbm)
1339 {
1340         struct ieee80211_local *local = wiphy_priv(wiphy);
1341         struct ieee80211_channel *chan = local->hw.conf.channel;
1342         u32 changes = 0;
1343         bool radio_enabled = true;
1344
1345         switch (type) {
1346         case TX_POWER_AUTOMATIC:
1347                 local->user_power_level = -1;
1348                 break;
1349         case TX_POWER_LIMITED:
1350                 if (dbm < 0)
1351                         return -EINVAL;
1352                 local->user_power_level = dbm;
1353                 break;
1354         case TX_POWER_FIXED:
1355                 if (dbm < 0)
1356                         return -EINVAL;
1357                 /* TODO: move to cfg80211 when it knows the channel */
1358                 if (dbm > chan->max_power)
1359                         return -EINVAL;
1360                 local->user_power_level = dbm;
1361                 break;
1362         case TX_POWER_OFF:
1363                 radio_enabled = false;
1364                 break;
1365         }
1366
1367         if (radio_enabled != local->hw.conf.radio_enabled) {
1368                 changes |= IEEE80211_CONF_CHANGE_RADIO_ENABLED;
1369                 local->hw.conf.radio_enabled = radio_enabled;
1370         }
1371
1372         ieee80211_hw_config(local, changes);
1373
1374         return 0;
1375 }
1376
1377 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1378 {
1379         struct ieee80211_local *local = wiphy_priv(wiphy);
1380
1381         *dbm = local->hw.conf.power_level;
1382
1383         if (!local->hw.conf.radio_enabled)
1384                 return -ENETDOWN;
1385
1386         return 0;
1387 }
1388
1389 struct cfg80211_ops mac80211_config_ops = {
1390         .add_virtual_intf = ieee80211_add_iface,
1391         .del_virtual_intf = ieee80211_del_iface,
1392         .change_virtual_intf = ieee80211_change_iface,
1393         .add_key = ieee80211_add_key,
1394         .del_key = ieee80211_del_key,
1395         .get_key = ieee80211_get_key,
1396         .set_default_key = ieee80211_config_default_key,
1397         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1398         .add_beacon = ieee80211_add_beacon,
1399         .set_beacon = ieee80211_set_beacon,
1400         .del_beacon = ieee80211_del_beacon,
1401         .add_station = ieee80211_add_station,
1402         .del_station = ieee80211_del_station,
1403         .change_station = ieee80211_change_station,
1404         .get_station = ieee80211_get_station,
1405         .dump_station = ieee80211_dump_station,
1406 #ifdef CONFIG_MAC80211_MESH
1407         .add_mpath = ieee80211_add_mpath,
1408         .del_mpath = ieee80211_del_mpath,
1409         .change_mpath = ieee80211_change_mpath,
1410         .get_mpath = ieee80211_get_mpath,
1411         .dump_mpath = ieee80211_dump_mpath,
1412         .set_mesh_params = ieee80211_set_mesh_params,
1413         .get_mesh_params = ieee80211_get_mesh_params,
1414 #endif
1415         .change_bss = ieee80211_change_bss,
1416         .set_txq_params = ieee80211_set_txq_params,
1417         .set_channel = ieee80211_set_channel,
1418         .suspend = ieee80211_suspend,
1419         .resume = ieee80211_resume,
1420         .scan = ieee80211_scan,
1421         .auth = ieee80211_auth,
1422         .assoc = ieee80211_assoc,
1423         .deauth = ieee80211_deauth,
1424         .disassoc = ieee80211_disassoc,
1425         .join_ibss = ieee80211_join_ibss,
1426         .leave_ibss = ieee80211_leave_ibss,
1427         .set_wiphy_params = ieee80211_set_wiphy_params,
1428         .set_tx_power = ieee80211_set_tx_power,
1429         .get_tx_power = ieee80211_get_tx_power,
1430 };