net/mac80211/cfg.c

   1 /*
   2  * mac80211 configuration hooks for cfg80211
   3  *
   4  * Copyright 2006-2010  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 <linux/slab.h>
  13 #include <net/net_namespace.h>
  14 #include <linux/rcupdate.h>
  15 #include <net/cfg80211.h>
  16 #include "ieee80211_i.h"
  17 #include "driver-ops.h"
  18 #include "cfg.h"
  19 #include "rate.h"
  20 #include "mesh.h"
  21
  22 static bool nl80211_type_check(enum nl80211_iftype type)
  23 {
  24         switch (type) {
  25         case NL80211_IFTYPE_ADHOC:
  26         case NL80211_IFTYPE_STATION:
  27         case NL80211_IFTYPE_MONITOR:
  28 #ifdef CONFIG_MAC80211_MESH
  29         case NL80211_IFTYPE_MESH_POINT:
  30 #endif
  31         case NL80211_IFTYPE_AP:
  32         case NL80211_IFTYPE_AP_VLAN:
  33         case NL80211_IFTYPE_WDS:
  34                 return true;
  35         default:
  36                 return false;
  37         }
  38 }
  39
  40 static bool nl80211_params_check(enum nl80211_iftype type,
  41                                  struct vif_params *params)
  42 {
  43         if (!nl80211_type_check(type))
  44                 return false;
  45
  46         return true;
  47 }
  48
  49 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
  50                                enum nl80211_iftype type, u32 *flags,
  51                                struct vif_params *params)
  52 {
  53         struct ieee80211_local *local = wiphy_priv(wiphy);
  54         struct net_device *dev;
  55         struct ieee80211_sub_if_data *sdata;
  56         int err;
  57
  58         if (!nl80211_params_check(type, params))
  59                 return -EINVAL;
  60
  61         err = ieee80211_if_add(local, name, &dev, type, params);
  62         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
  63                 return err;
  64
  65         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  66         sdata->u.mntr_flags = *flags;
  67         return 0;
  68 }
  69
  70 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
  71 {
  72         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
  73
  74         return 0;
  75 }
  76
  77 static int ieee80211_change_iface(struct wiphy *wiphy,
  78                                   struct net_device *dev,
  79                                   enum nl80211_iftype type, u32 *flags,
  80                                   struct vif_params *params)
  81 {
  82         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  83         int ret;
  84
  85         if (ieee80211_sdata_running(sdata))
  86                 return -EBUSY;
  87
  88         if (!nl80211_params_check(type, params))
  89                 return -EINVAL;
  90
  91         ret = ieee80211_if_change_type(sdata, type);
  92         if (ret)
  93                 return ret;
  94
  95         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
  96                 ieee80211_sdata_set_mesh_id(sdata,
  97                                             params->mesh_id_len,
  98                                             params->mesh_id);
  99
 100         if (type == NL80211_IFTYPE_AP_VLAN &&
 101             params && params->use_4addr == 0)
 102                 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
 103         else if (type == NL80211_IFTYPE_STATION &&
 104                  params && params->use_4addr >= 0)
 105                 sdata->u.mgd.use_4addr = params->use_4addr;
 106
 107         if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags)
 108                 sdata->u.mntr_flags = *flags;
 109
 110         return 0;
 111 }
 112
 113 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 114                              u8 key_idx, const 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         if (!netif_running(dev))
 124                 return -ENETDOWN;
 125
 126         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 127
 128         switch (params->cipher) {
 129         case WLAN_CIPHER_SUITE_WEP40:
 130         case WLAN_CIPHER_SUITE_WEP104:
 131                 alg = ALG_WEP;
 132                 break;
 133         case WLAN_CIPHER_SUITE_TKIP:
 134                 alg = ALG_TKIP;
 135                 break;
 136         case WLAN_CIPHER_SUITE_CCMP:
 137                 alg = ALG_CCMP;
 138                 break;
 139         case WLAN_CIPHER_SUITE_AES_CMAC:
 140                 alg = ALG_AES_CMAC;
 141                 break;
 142         default:
 143                 return -EINVAL;
 144         }
 145
 146         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
 147                                   params->seq_len, params->seq);
 148         if (!key)
 149                 return -ENOMEM;
 150
 151         mutex_lock(&sdata->local->sta_mtx);
 152
 153         if (mac_addr) {
 154                 sta = sta_info_get_bss(sdata, mac_addr);
 155                 if (!sta) {
 156                         ieee80211_key_free(key);
 157                         err = -ENOENT;
 158                         goto out_unlock;
 159                 }
 160         }
 161
 162         ieee80211_key_link(key, sdata, sta);
 163
 164         err = 0;
 165  out_unlock:
 166         mutex_unlock(&sdata->local->sta_mtx);
 167
 168         return err;
 169 }
 170
 171 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 172                              u8 key_idx, const u8 *mac_addr)
 173 {
 174         struct ieee80211_sub_if_data *sdata;
 175         struct sta_info *sta;
 176         int ret;
 177
 178         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 179
 180         mutex_lock(&sdata->local->sta_mtx);
 181
 182         if (mac_addr) {
 183                 ret = -ENOENT;
 184
 185                 sta = sta_info_get_bss(sdata, mac_addr);
 186                 if (!sta)
 187                         goto out_unlock;
 188
 189                 if (sta->key) {
 190                         ieee80211_key_free(sta->key);
 191                         WARN_ON(sta->key);
 192                         ret = 0;
 193                 }
 194
 195                 goto out_unlock;
 196         }
 197
 198         if (!sdata->keys[key_idx]) {
 199                 ret = -ENOENT;
 200                 goto out_unlock;
 201         }
 202
 203         ieee80211_key_free(sdata->keys[key_idx]);
 204         WARN_ON(sdata->keys[key_idx]);
 205
 206         ret = 0;
 207  out_unlock:
 208         mutex_unlock(&sdata->local->sta_mtx);
 209
 210         return ret;
 211 }
 212
 213 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 214                              u8 key_idx, const u8 *mac_addr, void *cookie,
 215                              void (*callback)(void *cookie,
 216                                               struct key_params *params))
 217 {
 218         struct ieee80211_sub_if_data *sdata;
 219         struct sta_info *sta = NULL;
 220         u8 seq[6] = {0};
 221         struct key_params params;
 222         struct ieee80211_key *key;
 223         u32 iv32;
 224         u16 iv16;
 225         int err = -ENOENT;
 226
 227         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 228
 229         rcu_read_lock();
 230
 231         if (mac_addr) {
 232                 sta = sta_info_get_bss(sdata, mac_addr);
 233                 if (!sta)
 234                         goto out;
 235
 236                 key = sta->key;
 237         } else
 238                 key = sdata->keys[key_idx];
 239
 240         if (!key)
 241                 goto out;
 242
 243         memset(&params, 0, sizeof(params));
 244
 245         switch (key->conf.alg) {
 246         case ALG_TKIP:
 247                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
 248
 249                 iv32 = key->u.tkip.tx.iv32;
 250                 iv16 = key->u.tkip.tx.iv16;
 251
 252                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 253                         drv_get_tkip_seq(sdata->local,
 254                                          key->conf.hw_key_idx,
 255                                          &iv32, &iv16);
 256
 257                 seq[0] = iv16 & 0xff;
 258                 seq[1] = (iv16 >> 8) & 0xff;
 259                 seq[2] = iv32 & 0xff;
 260                 seq[3] = (iv32 >> 8) & 0xff;
 261                 seq[4] = (iv32 >> 16) & 0xff;
 262                 seq[5] = (iv32 >> 24) & 0xff;
 263                 params.seq = seq;
 264                 params.seq_len = 6;
 265                 break;
 266         case ALG_CCMP:
 267                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
 268                 seq[0] = key->u.ccmp.tx_pn[5];
 269                 seq[1] = key->u.ccmp.tx_pn[4];
 270                 seq[2] = key->u.ccmp.tx_pn[3];
 271                 seq[3] = key->u.ccmp.tx_pn[2];
 272                 seq[4] = key->u.ccmp.tx_pn[1];
 273                 seq[5] = key->u.ccmp.tx_pn[0];
 274                 params.seq = seq;
 275                 params.seq_len = 6;
 276                 break;
 277         case ALG_WEP:
 278                 if (key->conf.keylen == 5)
 279                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
 280                 else
 281                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
 282                 break;
 283         case ALG_AES_CMAC:
 284                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 285                 seq[0] = key->u.aes_cmac.tx_pn[5];
 286                 seq[1] = key->u.aes_cmac.tx_pn[4];
 287                 seq[2] = key->u.aes_cmac.tx_pn[3];
 288                 seq[3] = key->u.aes_cmac.tx_pn[2];
 289                 seq[4] = key->u.aes_cmac.tx_pn[1];
 290                 seq[5] = key->u.aes_cmac.tx_pn[0];
 291                 params.seq = seq;
 292                 params.seq_len = 6;
 293                 break;
 294         }
 295
 296         params.key = key->conf.key;
 297         params.key_len = key->conf.keylen;
 298
 299         callback(cookie, &params);
 300         err = 0;
 301
 302  out:
 303         rcu_read_unlock();
 304         return err;
 305 }
 306
 307 static int ieee80211_config_default_key(struct wiphy *wiphy,
 308                                         struct net_device *dev,
 309                                         u8 key_idx)
 310 {
 311         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 312
 313         ieee80211_set_default_key(sdata, key_idx);
 314
 315         return 0;
 316 }
 317
 318 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 319                                              struct net_device *dev,
 320                                              u8 key_idx)
 321 {
 322         struct ieee80211_sub_if_data *sdata;
 323
 324         rcu_read_lock();
 325
 326         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 327         ieee80211_set_default_mgmt_key(sdata, key_idx);
 328
 329         rcu_read_unlock();
 330
 331         return 0;
 332 }
 333
 334 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 335 {
 336         struct ieee80211_sub_if_data *sdata = sta->sdata;
 337
 338         sinfo->generation = sdata->local->sta_generation;
 339
 340         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 341                         STATION_INFO_RX_BYTES |
 342                         STATION_INFO_TX_BYTES |
 343                         STATION_INFO_RX_PACKETS |
 344                         STATION_INFO_TX_PACKETS |
 345                         STATION_INFO_TX_BITRATE;
 346
 347         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 348         sinfo->rx_bytes = sta->rx_bytes;
 349         sinfo->tx_bytes = sta->tx_bytes;
 350         sinfo->rx_packets = sta->rx_packets;
 351         sinfo->tx_packets = sta->tx_packets;
 352
 353         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 354             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 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_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 394         struct sta_info *sta;
 395         int ret = -ENOENT;
 396
 397         rcu_read_lock();
 398
 399         sta = sta_info_get_by_idx(sdata, idx);
 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_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 412                                  int idx, struct survey_info *survey)
 413 {
 414         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 415
 416         if (!local->ops->get_survey)
 417                 return -EOPNOTSUPP;
 418
 419         return drv_get_survey(local, idx, survey);
 420 }
 421
 422 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 423                                  u8 *mac, struct station_info *sinfo)
 424 {
 425         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 426         struct sta_info *sta;
 427         int ret = -ENOENT;
 428
 429         rcu_read_lock();
 430
 431         sta = sta_info_get_bss(sdata, mac);
 432         if (sta) {
 433                 ret = 0;
 434                 sta_set_sinfo(sta, sinfo);
 435         }
 436
 437         rcu_read_unlock();
 438
 439         return ret;
 440 }
 441
 442 /*
 443  * This handles both adding a beacon and setting new beacon info
 444  */
 445 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 446                                    struct beacon_parameters *params)
 447 {
 448         struct beacon_data *new, *old;
 449         int new_head_len, new_tail_len;
 450         int size;
 451         int err = -EINVAL;
 452
 453         old = sdata->u.ap.beacon;
 454
 455         /* head must not be zero-length */
 456         if (params->head && !params->head_len)
 457                 return -EINVAL;
 458
 459         /*
 460          * This is a kludge. beacon interval should really be part
 461          * of the beacon information.
 462          */
 463         if (params->interval &&
 464             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 465                 sdata->vif.bss_conf.beacon_int = params->interval;
 466                 ieee80211_bss_info_change_notify(sdata,
 467                                                  BSS_CHANGED_BEACON_INT);
 468         }
 469
 470         /* Need to have a beacon head if we don't have one yet */
 471         if (!params->head && !old)
 472                 return err;
 473
 474         /* sorry, no way to start beaconing without dtim period */
 475         if (!params->dtim_period && !old)
 476                 return err;
 477
 478         /* new or old head? */
 479         if (params->head)
 480                 new_head_len = params->head_len;
 481         else
 482                 new_head_len = old->head_len;
 483
 484         /* new or old tail? */
 485         if (params->tail || !old)
 486                 /* params->tail_len will be zero for !params->tail */
 487                 new_tail_len = params->tail_len;
 488         else
 489                 new_tail_len = old->tail_len;
 490
 491         size = sizeof(*new) + new_head_len + new_tail_len;
 492
 493         new = kzalloc(size, GFP_KERNEL);
 494         if (!new)
 495                 return -ENOMEM;
 496
 497         /* start filling the new info now */
 498
 499         /* new or old dtim period? */
 500         if (params->dtim_period)
 501                 new->dtim_period = params->dtim_period;
 502         else
 503                 new->dtim_period = old->dtim_period;
 504
 505         /*
 506          * pointers go into the block we allocated,
 507          * memory is | beacon_data | head | tail |
 508          */
 509         new->head = ((u8 *) new) + sizeof(*new);
 510         new->tail = new->head + new_head_len;
 511         new->head_len = new_head_len;
 512         new->tail_len = new_tail_len;
 513
 514         /* copy in head */
 515         if (params->head)
 516                 memcpy(new->head, params->head, new_head_len);
 517         else
 518                 memcpy(new->head, old->head, new_head_len);
 519
 520         /* copy in optional tail */
 521         if (params->tail)
 522                 memcpy(new->tail, params->tail, new_tail_len);
 523         else
 524                 if (old)
 525                         memcpy(new->tail, old->tail, new_tail_len);
 526
 527         sdata->vif.bss_conf.dtim_period = new->dtim_period;
 528
 529         rcu_assign_pointer(sdata->u.ap.beacon, new);
 530
 531         synchronize_rcu();
 532
 533         kfree(old);
 534
 535         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 536                                                 BSS_CHANGED_BEACON);
 537         return 0;
 538 }
 539
 540 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 541                                 struct beacon_parameters *params)
 542 {
 543         struct ieee80211_sub_if_data *sdata;
 544         struct beacon_data *old;
 545
 546         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 547
 548         old = sdata->u.ap.beacon;
 549
 550         if (old)
 551                 return -EALREADY;
 552
 553         return ieee80211_config_beacon(sdata, params);
 554 }
 555
 556 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 557                                 struct beacon_parameters *params)
 558 {
 559         struct ieee80211_sub_if_data *sdata;
 560         struct beacon_data *old;
 561
 562         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 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         old = sdata->u.ap.beacon;
 580
 581         if (!old)
 582                 return -ENOENT;
 583
 584         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 585         synchronize_rcu();
 586         kfree(old);
 587
 588         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 589         return 0;
 590 }
 591
 592 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 593 struct iapp_layer2_update {
 594         u8 da[ETH_ALEN];        /* broadcast */
 595         u8 sa[ETH_ALEN];        /* STA addr */
 596         __be16 len;             /* 6 */
 597         u8 dsap;                /* 0 */
 598         u8 ssap;                /* 0 */
 599         u8 control;
 600         u8 xid_info[3];
 601 } __packed;
 602
 603 static void ieee80211_send_layer2_update(struct sta_info *sta)
 604 {
 605         struct iapp_layer2_update *msg;
 606         struct sk_buff *skb;
 607
 608         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 609          * bridge devices */
 610
 611         skb = dev_alloc_skb(sizeof(*msg));
 612         if (!skb)
 613                 return;
 614         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 615
 616         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 617          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 618
 619         memset(msg->da, 0xff, ETH_ALEN);
 620         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 621         msg->len = htons(6);
 622         msg->dsap = 0;
 623         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 624         msg->control = 0xaf;    /* XID response lsb.1111F101.
 625                                  * F=0 (no poll command; unsolicited frame) */
 626         msg->xid_info[0] = 0x81;        /* XID format identifier */
 627         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 628         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 629
 630         skb->dev = sta->sdata->dev;
 631         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 632         memset(skb->cb, 0, sizeof(skb->cb));
 633         netif_rx(skb);
 634 }
 635
 636 static void sta_apply_parameters(struct ieee80211_local *local,
 637                                  struct sta_info *sta,
 638                                  struct station_parameters *params)
 639 {
 640         u32 rates;
 641         int i, j;
 642         struct ieee80211_supported_band *sband;
 643         struct ieee80211_sub_if_data *sdata = sta->sdata;
 644         u32 mask, set;
 645
 646         sband = local->hw.wiphy->bands[local->oper_channel->band];
 647
 648         spin_lock_bh(&sta->lock);
 649         mask = params->sta_flags_mask;
 650         set = params->sta_flags_set;
 651
 652         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 653                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 654                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 655                         sta->flags |= WLAN_STA_AUTHORIZED;
 656         }
 657
 658         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 659                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 660                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 661                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 662         }
 663
 664         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 665                 sta->flags &= ~WLAN_STA_WME;
 666                 if (set & BIT(NL80211_STA_FLAG_WME))
 667                         sta->flags |= WLAN_STA_WME;
 668         }
 669
 670         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 671                 sta->flags &= ~WLAN_STA_MFP;
 672                 if (set & BIT(NL80211_STA_FLAG_MFP))
 673                         sta->flags |= WLAN_STA_MFP;
 674         }
 675         spin_unlock_bh(&sta->lock);
 676
 677         /*
 678          * cfg80211 validates this (1-2007) and allows setting the AID
 679          * only when creating a new station entry
 680          */
 681         if (params->aid)
 682                 sta->sta.aid = params->aid;
 683
 684         /*
 685          * FIXME: updating the following information is racy when this
 686          *        function is called from ieee80211_change_station().
 687          *        However, all this information should be static so
 688          *        maybe we should just reject attemps to change it.
 689          */
 690
 691         if (params->listen_interval >= 0)
 692                 sta->listen_interval = params->listen_interval;
 693
 694         if (params->supported_rates) {
 695                 rates = 0;
 696
 697                 for (i = 0; i < params->supported_rates_len; i++) {
 698                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 699                         for (j = 0; j < sband->n_bitrates; j++) {
 700                                 if (sband->bitrates[j].bitrate == rate)
 701                                         rates |= BIT(j);
 702                         }
 703                 }
 704                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 705         }
 706
 707         if (params->ht_capa)
 708                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 709                                                   params->ht_capa,
 710                                                   &sta->sta.ht_cap);
 711
 712         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 713                 switch (params->plink_action) {
 714                 case PLINK_ACTION_OPEN:
 715                         mesh_plink_open(sta);
 716                         break;
 717                 case PLINK_ACTION_BLOCK:
 718                         mesh_plink_block(sta);
 719                         break;
 720                 }
 721         }
 722 }
 723
 724 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 725                                  u8 *mac, struct station_parameters *params)
 726 {
 727         struct ieee80211_local *local = wiphy_priv(wiphy);
 728         struct sta_info *sta;
 729         struct ieee80211_sub_if_data *sdata;
 730         int err;
 731         int layer2_update;
 732
 733         if (params->vlan) {
 734                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 735
 736                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 737                     sdata->vif.type != NL80211_IFTYPE_AP)
 738                         return -EINVAL;
 739         } else
 740                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 741
 742         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
 743                 return -EINVAL;
 744
 745         if (is_multicast_ether_addr(mac))
 746                 return -EINVAL;
 747
 748         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 749         if (!sta)
 750                 return -ENOMEM;
 751
 752         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 753
 754         sta_apply_parameters(local, sta, params);
 755
 756         rate_control_rate_init(sta);
 757
 758         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 759                 sdata->vif.type == NL80211_IFTYPE_AP;
 760
 761         err = sta_info_insert_rcu(sta);
 762         if (err) {
 763                 rcu_read_unlock();
 764                 return err;
 765         }
 766
 767         if (layer2_update)
 768                 ieee80211_send_layer2_update(sta);
 769
 770         rcu_read_unlock();
 771
 772         return 0;
 773 }
 774
 775 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 776                                  u8 *mac)
 777 {
 778         struct ieee80211_local *local = wiphy_priv(wiphy);
 779         struct ieee80211_sub_if_data *sdata;
 780
 781         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 782
 783         if (mac)
 784                 return sta_info_destroy_addr_bss(sdata, mac);
 785
 786         sta_info_flush(local, sdata);
 787         return 0;
 788 }
 789
 790 static int ieee80211_change_station(struct wiphy *wiphy,
 791                                     struct net_device *dev,
 792                                     u8 *mac,
 793                                     struct station_parameters *params)
 794 {
 795         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 796         struct ieee80211_local *local = wiphy_priv(wiphy);
 797         struct sta_info *sta;
 798         struct ieee80211_sub_if_data *vlansdata;
 799
 800         rcu_read_lock();
 801
 802         sta = sta_info_get_bss(sdata, mac);
 803         if (!sta) {
 804                 rcu_read_unlock();
 805                 return -ENOENT;
 806         }
 807
 808         if (params->vlan && params->vlan != sta->sdata->dev) {
 809                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 810
 811                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 812                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 813                         rcu_read_unlock();
 814                         return -EINVAL;
 815                 }
 816
 817                 if (params->vlan->ieee80211_ptr->use_4addr) {
 818                         if (vlansdata->u.vlan.sta) {
 819                                 rcu_read_unlock();
 820                                 return -EBUSY;
 821                         }
 822
 823                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 824                 }
 825
 826                 sta->sdata = vlansdata;
 827                 ieee80211_send_layer2_update(sta);
 828         }
 829
 830         sta_apply_parameters(local, sta, params);
 831
 832         rcu_read_unlock();
 833
 834         return 0;
 835 }
 836
 837 #ifdef CONFIG_MAC80211_MESH
 838 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 839                                  u8 *dst, u8 *next_hop)
 840 {
 841         struct ieee80211_sub_if_data *sdata;
 842         struct mesh_path *mpath;
 843         struct sta_info *sta;
 844         int err;
 845
 846         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 847
 848         rcu_read_lock();
 849         sta = sta_info_get(sdata, next_hop);
 850         if (!sta) {
 851                 rcu_read_unlock();
 852                 return -ENOENT;
 853         }
 854
 855         err = mesh_path_add(dst, sdata);
 856         if (err) {
 857                 rcu_read_unlock();
 858                 return err;
 859         }
 860
 861         mpath = mesh_path_lookup(dst, sdata);
 862         if (!mpath) {
 863                 rcu_read_unlock();
 864                 return -ENXIO;
 865         }
 866         mesh_path_fix_nexthop(mpath, sta);
 867
 868         rcu_read_unlock();
 869         return 0;
 870 }
 871
 872 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 873                                  u8 *dst)
 874 {
 875         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 876
 877         if (dst)
 878                 return mesh_path_del(dst, sdata);
 879
 880         mesh_path_flush(sdata);
 881         return 0;
 882 }
 883
 884 static int ieee80211_change_mpath(struct wiphy *wiphy,
 885                                     struct net_device *dev,
 886                                     u8 *dst, u8 *next_hop)
 887 {
 888         struct ieee80211_sub_if_data *sdata;
 889         struct mesh_path *mpath;
 890         struct sta_info *sta;
 891
 892         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 893
 894         rcu_read_lock();
 895
 896         sta = sta_info_get(sdata, next_hop);
 897         if (!sta) {
 898                 rcu_read_unlock();
 899                 return -ENOENT;
 900         }
 901
 902         mpath = mesh_path_lookup(dst, sdata);
 903         if (!mpath) {
 904                 rcu_read_unlock();
 905                 return -ENOENT;
 906         }
 907
 908         mesh_path_fix_nexthop(mpath, sta);
 909
 910         rcu_read_unlock();
 911         return 0;
 912 }
 913
 914 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 915                             struct mpath_info *pinfo)
 916 {
 917         if (mpath->next_hop)
 918                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 919         else
 920                 memset(next_hop, 0, ETH_ALEN);
 921
 922         pinfo->generation = mesh_paths_generation;
 923
 924         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 925                         MPATH_INFO_SN |
 926                         MPATH_INFO_METRIC |
 927                         MPATH_INFO_EXPTIME |
 928                         MPATH_INFO_DISCOVERY_TIMEOUT |
 929                         MPATH_INFO_DISCOVERY_RETRIES |
 930                         MPATH_INFO_FLAGS;
 931
 932         pinfo->frame_qlen = mpath->frame_queue.qlen;
 933         pinfo->sn = mpath->sn;
 934         pinfo->metric = mpath->metric;
 935         if (time_before(jiffies, mpath->exp_time))
 936                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 937         pinfo->discovery_timeout =
 938                         jiffies_to_msecs(mpath->discovery_timeout);
 939         pinfo->discovery_retries = mpath->discovery_retries;
 940         pinfo->flags = 0;
 941         if (mpath->flags & MESH_PATH_ACTIVE)
 942                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 943         if (mpath->flags & MESH_PATH_RESOLVING)
 944                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 945         if (mpath->flags & MESH_PATH_SN_VALID)
 946                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 947         if (mpath->flags & MESH_PATH_FIXED)
 948                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 949         if (mpath->flags & MESH_PATH_RESOLVING)
 950                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 951
 952         pinfo->flags = mpath->flags;
 953 }
 954
 955 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 956                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 957
 958 {
 959         struct ieee80211_sub_if_data *sdata;
 960         struct mesh_path *mpath;
 961
 962         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 963
 964         rcu_read_lock();
 965         mpath = mesh_path_lookup(dst, sdata);
 966         if (!mpath) {
 967                 rcu_read_unlock();
 968                 return -ENOENT;
 969         }
 970         memcpy(dst, mpath->dst, ETH_ALEN);
 971         mpath_set_pinfo(mpath, next_hop, pinfo);
 972         rcu_read_unlock();
 973         return 0;
 974 }
 975
 976 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 977                                  int idx, u8 *dst, u8 *next_hop,
 978                                  struct mpath_info *pinfo)
 979 {
 980         struct ieee80211_sub_if_data *sdata;
 981         struct mesh_path *mpath;
 982
 983         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 984
 985         rcu_read_lock();
 986         mpath = mesh_path_lookup_by_idx(idx, sdata);
 987         if (!mpath) {
 988                 rcu_read_unlock();
 989                 return -ENOENT;
 990         }
 991         memcpy(dst, mpath->dst, ETH_ALEN);
 992         mpath_set_pinfo(mpath, next_hop, pinfo);
 993         rcu_read_unlock();
 994         return 0;
 995 }
 996
 997 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
 998                                 struct net_device *dev,
 999                                 struct mesh_config *conf)
1000 {
1001         struct ieee80211_sub_if_data *sdata;
1002         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1003
1004         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1005         return 0;
1006 }
1007
1008 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1009 {
1010         return (mask >> (parm-1)) & 0x1;
1011 }
1012
1013 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1014                                 struct net_device *dev,
1015                                 const struct mesh_config *nconf, u32 mask)
1016 {
1017         struct mesh_config *conf;
1018         struct ieee80211_sub_if_data *sdata;
1019         struct ieee80211_if_mesh *ifmsh;
1020
1021         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1022         ifmsh = &sdata->u.mesh;
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         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1058                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1059                 ieee80211_mesh_root_setup(ifmsh);
1060         }
1061         return 0;
1062 }
1063
1064 #endif
1065
1066 static int ieee80211_change_bss(struct wiphy *wiphy,
1067                                 struct net_device *dev,
1068                                 struct bss_parameters *params)
1069 {
1070         struct ieee80211_sub_if_data *sdata;
1071         u32 changed = 0;
1072
1073         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1074
1075         if (params->use_cts_prot >= 0) {
1076                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1077                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1078         }
1079         if (params->use_short_preamble >= 0) {
1080                 sdata->vif.bss_conf.use_short_preamble =
1081                         params->use_short_preamble;
1082                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1083         }
1084
1085         if (!sdata->vif.bss_conf.use_short_slot &&
1086             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1087                 sdata->vif.bss_conf.use_short_slot = true;
1088                 changed |= BSS_CHANGED_ERP_SLOT;
1089         }
1090
1091         if (params->use_short_slot_time >= 0) {
1092                 sdata->vif.bss_conf.use_short_slot =
1093                         params->use_short_slot_time;
1094                 changed |= BSS_CHANGED_ERP_SLOT;
1095         }
1096
1097         if (params->basic_rates) {
1098                 int i, j;
1099                 u32 rates = 0;
1100                 struct ieee80211_local *local = wiphy_priv(wiphy);
1101                 struct ieee80211_supported_band *sband =
1102                         wiphy->bands[local->oper_channel->band];
1103
1104                 for (i = 0; i < params->basic_rates_len; i++) {
1105                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1106                         for (j = 0; j < sband->n_bitrates; j++) {
1107                                 if (sband->bitrates[j].bitrate == rate)
1108                                         rates |= BIT(j);
1109                         }
1110                 }
1111                 sdata->vif.bss_conf.basic_rates = rates;
1112                 changed |= BSS_CHANGED_BASIC_RATES;
1113         }
1114
1115         if (params->ap_isolate >= 0) {
1116                 if (params->ap_isolate)
1117                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1118                 else
1119                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1120         }
1121
1122         ieee80211_bss_info_change_notify(sdata, changed);
1123
1124         return 0;
1125 }
1126
1127 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1128                                     struct ieee80211_txq_params *params)
1129 {
1130         struct ieee80211_local *local = wiphy_priv(wiphy);
1131         struct ieee80211_tx_queue_params p;
1132
1133         if (!local->ops->conf_tx)
1134                 return -EOPNOTSUPP;
1135
1136         memset(&p, 0, sizeof(p));
1137         p.aifs = params->aifs;
1138         p.cw_max = params->cwmax;
1139         p.cw_min = params->cwmin;
1140         p.txop = params->txop;
1141
1142         /*
1143          * Setting tx queue params disables u-apsd because it's only
1144          * called in master mode.
1145          */
1146         p.uapsd = false;
1147
1148         if (drv_conf_tx(local, params->queue, &p)) {
1149                 printk(KERN_DEBUG "%s: failed to set TX queue "
1150                        "parameters for queue %d\n",
1151                        wiphy_name(local->hw.wiphy), params->queue);
1152                 return -EINVAL;
1153         }
1154
1155         /* enable WMM or activate new settings */
1156         local->hw.conf.flags |= IEEE80211_CONF_QOS;
1157         drv_config(local, IEEE80211_CONF_CHANGE_QOS);
1158
1159         return 0;
1160 }
1161
1162 static int ieee80211_set_channel(struct wiphy *wiphy,
1163                                  struct net_device *netdev,
1164                                  struct ieee80211_channel *chan,
1165                                  enum nl80211_channel_type channel_type)
1166 {
1167         struct ieee80211_local *local = wiphy_priv(wiphy);
1168         struct ieee80211_sub_if_data *sdata = NULL;
1169
1170         if (netdev)
1171                 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1172
1173         switch (ieee80211_get_channel_mode(local, NULL)) {
1174         case CHAN_MODE_HOPPING:
1175                 return -EBUSY;
1176         case CHAN_MODE_FIXED:
1177                 if (local->oper_channel != chan)
1178                         return -EBUSY;
1179                 if (!sdata && local->_oper_channel_type == channel_type)
1180                         return 0;
1181                 break;
1182         case CHAN_MODE_UNDEFINED:
1183                 break;
1184         }
1185
1186         local->oper_channel = chan;
1187
1188         if (!ieee80211_set_channel_type(local, sdata, channel_type))
1189                 return -EBUSY;
1190
1191         ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1192         if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1193                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1194
1195         return 0;
1196 }
1197
1198 #ifdef CONFIG_PM
1199 static int ieee80211_suspend(struct wiphy *wiphy)
1200 {
1201         return __ieee80211_suspend(wiphy_priv(wiphy));
1202 }
1203
1204 static int ieee80211_resume(struct wiphy *wiphy)
1205 {
1206         return __ieee80211_resume(wiphy_priv(wiphy));
1207 }
1208 #else
1209 #define ieee80211_suspend NULL
1210 #define ieee80211_resume NULL
1211 #endif
1212
1213 static int ieee80211_scan(struct wiphy *wiphy,
1214                           struct net_device *dev,
1215                           struct cfg80211_scan_request *req)
1216 {
1217         struct ieee80211_sub_if_data *sdata;
1218
1219         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1220
1221         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1222             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1223             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1224             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1225                 return -EOPNOTSUPP;
1226
1227         return ieee80211_request_scan(sdata, req);
1228 }
1229
1230 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1231                           struct cfg80211_auth_request *req)
1232 {
1233         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1234 }
1235
1236 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1237                            struct cfg80211_assoc_request *req)
1238 {
1239         struct ieee80211_local *local = wiphy_priv(wiphy);
1240         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1241
1242         switch (ieee80211_get_channel_mode(local, sdata)) {
1243         case CHAN_MODE_HOPPING:
1244                 return -EBUSY;
1245         case CHAN_MODE_FIXED:
1246                 if (local->oper_channel == req->bss->channel)
1247                         break;
1248                 return -EBUSY;
1249         case CHAN_MODE_UNDEFINED:
1250                 break;
1251         }
1252
1253         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1254 }
1255
1256 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1257                             struct cfg80211_deauth_request *req,
1258                             void *cookie)
1259 {
1260         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1261                                     req, cookie);
1262 }
1263
1264 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1265                               struct cfg80211_disassoc_request *req,
1266                               void *cookie)
1267 {
1268         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1269                                       req, cookie);
1270 }
1271
1272 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1273                                struct cfg80211_ibss_params *params)
1274 {
1275         struct ieee80211_local *local = wiphy_priv(wiphy);
1276         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1277
1278         switch (ieee80211_get_channel_mode(local, sdata)) {
1279         case CHAN_MODE_HOPPING:
1280                 return -EBUSY;
1281         case CHAN_MODE_FIXED:
1282                 if (!params->channel_fixed)
1283                         return -EBUSY;
1284                 if (local->oper_channel == params->channel)
1285                         break;
1286                 return -EBUSY;
1287         case CHAN_MODE_UNDEFINED:
1288                 break;
1289         }
1290
1291         return ieee80211_ibss_join(sdata, params);
1292 }
1293
1294 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1295 {
1296         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1297
1298         return ieee80211_ibss_leave(sdata);
1299 }
1300
1301 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1302 {
1303         struct ieee80211_local *local = wiphy_priv(wiphy);
1304         int err;
1305
1306         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1307                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1308
1309                 if (err)
1310                         return err;
1311         }
1312
1313         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1314                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1315
1316                 if (err)
1317                         return err;
1318         }
1319
1320         if (changed & WIPHY_PARAM_RETRY_SHORT)
1321                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1322         if (changed & WIPHY_PARAM_RETRY_LONG)
1323                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1324         if (changed &
1325             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1326                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1327
1328         return 0;
1329 }
1330
1331 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1332                                   enum tx_power_setting type, int dbm)
1333 {
1334         struct ieee80211_local *local = wiphy_priv(wiphy);
1335         struct ieee80211_channel *chan = local->hw.conf.channel;
1336         u32 changes = 0;
1337
1338         switch (type) {
1339         case TX_POWER_AUTOMATIC:
1340                 local->user_power_level = -1;
1341                 break;
1342         case TX_POWER_LIMITED:
1343                 if (dbm < 0)
1344                         return -EINVAL;
1345                 local->user_power_level = dbm;
1346                 break;
1347         case TX_POWER_FIXED:
1348                 if (dbm < 0)
1349                         return -EINVAL;
1350                 /* TODO: move to cfg80211 when it knows the channel */
1351                 if (dbm > chan->max_power)
1352                         return -EINVAL;
1353                 local->user_power_level = dbm;
1354                 break;
1355         }
1356
1357         ieee80211_hw_config(local, changes);
1358
1359         return 0;
1360 }
1361
1362 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1363 {
1364         struct ieee80211_local *local = wiphy_priv(wiphy);
1365
1366         *dbm = local->hw.conf.power_level;
1367
1368         return 0;
1369 }
1370
1371 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1372                                   u8 *addr)
1373 {
1374         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1375
1376         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1377
1378         return 0;
1379 }
1380
1381 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1382 {
1383         struct ieee80211_local *local = wiphy_priv(wiphy);
1384
1385         drv_rfkill_poll(local);
1386 }
1387
1388 #ifdef CONFIG_NL80211_TESTMODE
1389 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1390 {
1391         struct ieee80211_local *local = wiphy_priv(wiphy);
1392
1393         if (!local->ops->testmode_cmd)
1394                 return -EOPNOTSUPP;
1395
1396         return local->ops->testmode_cmd(&local->hw, data, len);
1397 }
1398 #endif
1399
1400 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1401                              enum ieee80211_smps_mode smps_mode)
1402 {
1403         const u8 *ap;
1404         enum ieee80211_smps_mode old_req;
1405         int err;
1406
1407         old_req = sdata->u.mgd.req_smps;
1408         sdata->u.mgd.req_smps = smps_mode;
1409
1410         if (old_req == smps_mode &&
1411             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1412                 return 0;
1413
1414         /*
1415          * If not associated, or current association is not an HT
1416          * association, there's no need to send an action frame.
1417          */
1418         if (!sdata->u.mgd.associated ||
1419             sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1420                 mutex_lock(&sdata->local->iflist_mtx);
1421                 ieee80211_recalc_smps(sdata->local, sdata);
1422                 mutex_unlock(&sdata->local->iflist_mtx);
1423                 return 0;
1424         }
1425
1426         ap = sdata->u.mgd.associated->bssid;
1427
1428         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1429                 if (sdata->u.mgd.powersave)
1430                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1431                 else
1432                         smps_mode = IEEE80211_SMPS_OFF;
1433         }
1434
1435         /* send SM PS frame to AP */
1436         err = ieee80211_send_smps_action(sdata, smps_mode,
1437                                          ap, ap);
1438         if (err)
1439                 sdata->u.mgd.req_smps = old_req;
1440
1441         return err;
1442 }
1443
1444 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1445                                     bool enabled, int timeout)
1446 {
1447         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1448         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1449         struct ieee80211_conf *conf = &local->hw.conf;
1450
1451         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1452                 return -EOPNOTSUPP;
1453
1454         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1455                 return -EOPNOTSUPP;
1456
1457         if (enabled == sdata->u.mgd.powersave &&
1458             timeout == conf->dynamic_ps_forced_timeout)
1459                 return 0;
1460
1461         sdata->u.mgd.powersave = enabled;
1462         conf->dynamic_ps_forced_timeout = timeout;
1463
1464         /* no change, but if automatic follow powersave */
1465         mutex_lock(&sdata->u.mgd.mtx);
1466         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1467         mutex_unlock(&sdata->u.mgd.mtx);
1468
1469         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1470                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1471
1472         ieee80211_recalc_ps(local, -1);
1473
1474         return 0;
1475 }
1476
1477 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1478                                          struct net_device *dev,
1479                                          s32 rssi_thold, u32 rssi_hyst)
1480 {
1481         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1482         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1483         struct ieee80211_vif *vif = &sdata->vif;
1484         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1485
1486         if (rssi_thold == bss_conf->cqm_rssi_thold &&
1487             rssi_hyst == bss_conf->cqm_rssi_hyst)
1488                 return 0;
1489
1490         bss_conf->cqm_rssi_thold = rssi_thold;
1491         bss_conf->cqm_rssi_hyst = rssi_hyst;
1492
1493         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1494                 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1495                         return -EOPNOTSUPP;
1496                 return 0;
1497         }
1498
1499         /* tell the driver upon association, unless already associated */
1500         if (sdata->u.mgd.associated)
1501                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1502
1503         return 0;
1504 }
1505
1506 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1507                                       struct net_device *dev,
1508                                       const u8 *addr,
1509                                       const struct cfg80211_bitrate_mask *mask)
1510 {
1511         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1512         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1513         int i;
1514
1515         /*
1516          * This _could_ be supported by providing a hook for
1517          * drivers for this function, but at this point it
1518          * doesn't seem worth bothering.
1519          */
1520         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1521                 return -EOPNOTSUPP;
1522
1523
1524         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1525                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1526
1527         return 0;
1528 }
1529
1530 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1531                                        struct net_device *dev,
1532                                        struct ieee80211_channel *chan,
1533                                        enum nl80211_channel_type channel_type,
1534                                        unsigned int duration,
1535                                        u64 *cookie)
1536 {
1537         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1538
1539         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1540                                               duration, cookie);
1541 }
1542
1543 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1544                                               struct net_device *dev,
1545                                               u64 cookie)
1546 {
1547         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1548
1549         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1550 }
1551
1552 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1553                             struct ieee80211_channel *chan,
1554                             enum nl80211_channel_type channel_type,
1555                             bool channel_type_valid,
1556                             const u8 *buf, size_t len, u64 *cookie)
1557 {
1558         return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan,
1559                                     channel_type, channel_type_valid,
1560                                     buf, len, cookie);
1561 }
1562
1563 struct cfg80211_ops mac80211_config_ops = {
1564         .add_virtual_intf = ieee80211_add_iface,
1565         .del_virtual_intf = ieee80211_del_iface,
1566         .change_virtual_intf = ieee80211_change_iface,
1567         .add_key = ieee80211_add_key,
1568         .del_key = ieee80211_del_key,
1569         .get_key = ieee80211_get_key,
1570         .set_default_key = ieee80211_config_default_key,
1571         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1572         .add_beacon = ieee80211_add_beacon,
1573         .set_beacon = ieee80211_set_beacon,
1574         .del_beacon = ieee80211_del_beacon,
1575         .add_station = ieee80211_add_station,
1576         .del_station = ieee80211_del_station,
1577         .change_station = ieee80211_change_station,
1578         .get_station = ieee80211_get_station,
1579         .dump_station = ieee80211_dump_station,
1580         .dump_survey = ieee80211_dump_survey,
1581 #ifdef CONFIG_MAC80211_MESH
1582         .add_mpath = ieee80211_add_mpath,
1583         .del_mpath = ieee80211_del_mpath,
1584         .change_mpath = ieee80211_change_mpath,
1585         .get_mpath = ieee80211_get_mpath,
1586         .dump_mpath = ieee80211_dump_mpath,
1587         .set_mesh_params = ieee80211_set_mesh_params,
1588         .get_mesh_params = ieee80211_get_mesh_params,
1589 #endif
1590         .change_bss = ieee80211_change_bss,
1591         .set_txq_params = ieee80211_set_txq_params,
1592         .set_channel = ieee80211_set_channel,
1593         .suspend = ieee80211_suspend,
1594         .resume = ieee80211_resume,
1595         .scan = ieee80211_scan,
1596         .auth = ieee80211_auth,
1597         .assoc = ieee80211_assoc,
1598         .deauth = ieee80211_deauth,
1599         .disassoc = ieee80211_disassoc,
1600         .join_ibss = ieee80211_join_ibss,
1601         .leave_ibss = ieee80211_leave_ibss,
1602         .set_wiphy_params = ieee80211_set_wiphy_params,
1603         .set_tx_power = ieee80211_set_tx_power,
1604         .get_tx_power = ieee80211_get_tx_power,
1605         .set_wds_peer = ieee80211_set_wds_peer,
1606         .rfkill_poll = ieee80211_rfkill_poll,
1607         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1608         .set_power_mgmt = ieee80211_set_power_mgmt,
1609         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1610         .remain_on_channel = ieee80211_remain_on_channel,
1611         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1612         .action = ieee80211_action,
1613         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1614 };