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         /* reject WEP and TKIP keys if WEP failed to initialize */
 147         if ((alg == ALG_WEP || alg == ALG_TKIP) &&
 148             IS_ERR(sdata->local->wep_tx_tfm))
 149                 return -EINVAL;
 150
 151         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
 152                                   params->seq_len, params->seq);
 153         if (!key)
 154                 return -ENOMEM;
 155
 156         mutex_lock(&sdata->local->sta_mtx);
 157
 158         if (mac_addr) {
 159                 sta = sta_info_get_bss(sdata, mac_addr);
 160                 if (!sta) {
 161                         ieee80211_key_free(sdata->local, key);
 162                         err = -ENOENT;
 163                         goto out_unlock;
 164                 }
 165         }
 166
 167         ieee80211_key_link(key, sdata, sta);
 168
 169         err = 0;
 170  out_unlock:
 171         mutex_unlock(&sdata->local->sta_mtx);
 172
 173         return err;
 174 }
 175
 176 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 177                              u8 key_idx, const u8 *mac_addr)
 178 {
 179         struct ieee80211_sub_if_data *sdata;
 180         struct sta_info *sta;
 181         int ret;
 182
 183         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 184
 185         mutex_lock(&sdata->local->sta_mtx);
 186
 187         if (mac_addr) {
 188                 ret = -ENOENT;
 189
 190                 sta = sta_info_get_bss(sdata, mac_addr);
 191                 if (!sta)
 192                         goto out_unlock;
 193
 194                 if (sta->key) {
 195                         ieee80211_key_free(sdata->local, sta->key);
 196                         WARN_ON(sta->key);
 197                         ret = 0;
 198                 }
 199
 200                 goto out_unlock;
 201         }
 202
 203         if (!sdata->keys[key_idx]) {
 204                 ret = -ENOENT;
 205                 goto out_unlock;
 206         }
 207
 208         ieee80211_key_free(sdata->local, sdata->keys[key_idx]);
 209         WARN_ON(sdata->keys[key_idx]);
 210
 211         ret = 0;
 212  out_unlock:
 213         mutex_unlock(&sdata->local->sta_mtx);
 214
 215         return ret;
 216 }
 217
 218 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 219                              u8 key_idx, const u8 *mac_addr, void *cookie,
 220                              void (*callback)(void *cookie,
 221                                               struct key_params *params))
 222 {
 223         struct ieee80211_sub_if_data *sdata;
 224         struct sta_info *sta = NULL;
 225         u8 seq[6] = {0};
 226         struct key_params params;
 227         struct ieee80211_key *key;
 228         u32 iv32;
 229         u16 iv16;
 230         int err = -ENOENT;
 231
 232         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 233
 234         rcu_read_lock();
 235
 236         if (mac_addr) {
 237                 sta = sta_info_get_bss(sdata, mac_addr);
 238                 if (!sta)
 239                         goto out;
 240
 241                 key = sta->key;
 242         } else
 243                 key = sdata->keys[key_idx];
 244
 245         if (!key)
 246                 goto out;
 247
 248         memset(&params, 0, sizeof(params));
 249
 250         switch (key->conf.alg) {
 251         case ALG_TKIP:
 252                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
 253
 254                 iv32 = key->u.tkip.tx.iv32;
 255                 iv16 = key->u.tkip.tx.iv16;
 256
 257                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 258                         drv_get_tkip_seq(sdata->local,
 259                                          key->conf.hw_key_idx,
 260                                          &iv32, &iv16);
 261
 262                 seq[0] = iv16 & 0xff;
 263                 seq[1] = (iv16 >> 8) & 0xff;
 264                 seq[2] = iv32 & 0xff;
 265                 seq[3] = (iv32 >> 8) & 0xff;
 266                 seq[4] = (iv32 >> 16) & 0xff;
 267                 seq[5] = (iv32 >> 24) & 0xff;
 268                 params.seq = seq;
 269                 params.seq_len = 6;
 270                 break;
 271         case ALG_CCMP:
 272                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
 273                 seq[0] = key->u.ccmp.tx_pn[5];
 274                 seq[1] = key->u.ccmp.tx_pn[4];
 275                 seq[2] = key->u.ccmp.tx_pn[3];
 276                 seq[3] = key->u.ccmp.tx_pn[2];
 277                 seq[4] = key->u.ccmp.tx_pn[1];
 278                 seq[5] = key->u.ccmp.tx_pn[0];
 279                 params.seq = seq;
 280                 params.seq_len = 6;
 281                 break;
 282         case ALG_WEP:
 283                 if (key->conf.keylen == 5)
 284                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
 285                 else
 286                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
 287                 break;
 288         case ALG_AES_CMAC:
 289                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 290                 seq[0] = key->u.aes_cmac.tx_pn[5];
 291                 seq[1] = key->u.aes_cmac.tx_pn[4];
 292                 seq[2] = key->u.aes_cmac.tx_pn[3];
 293                 seq[3] = key->u.aes_cmac.tx_pn[2];
 294                 seq[4] = key->u.aes_cmac.tx_pn[1];
 295                 seq[5] = key->u.aes_cmac.tx_pn[0];
 296                 params.seq = seq;
 297                 params.seq_len = 6;
 298                 break;
 299         }
 300
 301         params.key = key->conf.key;
 302         params.key_len = key->conf.keylen;
 303
 304         callback(cookie, &params);
 305         err = 0;
 306
 307  out:
 308         rcu_read_unlock();
 309         return err;
 310 }
 311
 312 static int ieee80211_config_default_key(struct wiphy *wiphy,
 313                                         struct net_device *dev,
 314                                         u8 key_idx)
 315 {
 316         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 317
 318         ieee80211_set_default_key(sdata, key_idx);
 319
 320         return 0;
 321 }
 322
 323 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 324                                              struct net_device *dev,
 325                                              u8 key_idx)
 326 {
 327         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 328
 329         ieee80211_set_default_mgmt_key(sdata, key_idx);
 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         return drv_get_survey(local, idx, survey);
 417 }
 418
 419 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 420                                  u8 *mac, struct station_info *sinfo)
 421 {
 422         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 423         struct sta_info *sta;
 424         int ret = -ENOENT;
 425
 426         rcu_read_lock();
 427
 428         sta = sta_info_get_bss(sdata, mac);
 429         if (sta) {
 430                 ret = 0;
 431                 sta_set_sinfo(sta, sinfo);
 432         }
 433
 434         rcu_read_unlock();
 435
 436         return ret;
 437 }
 438
 439 /*
 440  * This handles both adding a beacon and setting new beacon info
 441  */
 442 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 443                                    struct beacon_parameters *params)
 444 {
 445         struct beacon_data *new, *old;
 446         int new_head_len, new_tail_len;
 447         int size;
 448         int err = -EINVAL;
 449
 450         old = sdata->u.ap.beacon;
 451
 452         /* head must not be zero-length */
 453         if (params->head && !params->head_len)
 454                 return -EINVAL;
 455
 456         /*
 457          * This is a kludge. beacon interval should really be part
 458          * of the beacon information.
 459          */
 460         if (params->interval &&
 461             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 462                 sdata->vif.bss_conf.beacon_int = params->interval;
 463                 ieee80211_bss_info_change_notify(sdata,
 464                                                  BSS_CHANGED_BEACON_INT);
 465         }
 466
 467         /* Need to have a beacon head if we don't have one yet */
 468         if (!params->head && !old)
 469                 return err;
 470
 471         /* sorry, no way to start beaconing without dtim period */
 472         if (!params->dtim_period && !old)
 473                 return err;
 474
 475         /* new or old head? */
 476         if (params->head)
 477                 new_head_len = params->head_len;
 478         else
 479                 new_head_len = old->head_len;
 480
 481         /* new or old tail? */
 482         if (params->tail || !old)
 483                 /* params->tail_len will be zero for !params->tail */
 484                 new_tail_len = params->tail_len;
 485         else
 486                 new_tail_len = old->tail_len;
 487
 488         size = sizeof(*new) + new_head_len + new_tail_len;
 489
 490         new = kzalloc(size, GFP_KERNEL);
 491         if (!new)
 492                 return -ENOMEM;
 493
 494         /* start filling the new info now */
 495
 496         /* new or old dtim period? */
 497         if (params->dtim_period)
 498                 new->dtim_period = params->dtim_period;
 499         else
 500                 new->dtim_period = old->dtim_period;
 501
 502         /*
 503          * pointers go into the block we allocated,
 504          * memory is | beacon_data | head | tail |
 505          */
 506         new->head = ((u8 *) new) + sizeof(*new);
 507         new->tail = new->head + new_head_len;
 508         new->head_len = new_head_len;
 509         new->tail_len = new_tail_len;
 510
 511         /* copy in head */
 512         if (params->head)
 513                 memcpy(new->head, params->head, new_head_len);
 514         else
 515                 memcpy(new->head, old->head, new_head_len);
 516
 517         /* copy in optional tail */
 518         if (params->tail)
 519                 memcpy(new->tail, params->tail, new_tail_len);
 520         else
 521                 if (old)
 522                         memcpy(new->tail, old->tail, new_tail_len);
 523
 524         sdata->vif.bss_conf.dtim_period = new->dtim_period;
 525
 526         rcu_assign_pointer(sdata->u.ap.beacon, new);
 527
 528         synchronize_rcu();
 529
 530         kfree(old);
 531
 532         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 533                                                 BSS_CHANGED_BEACON);
 534         return 0;
 535 }
 536
 537 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 538                                 struct beacon_parameters *params)
 539 {
 540         struct ieee80211_sub_if_data *sdata;
 541         struct beacon_data *old;
 542
 543         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 544
 545         old = sdata->u.ap.beacon;
 546
 547         if (old)
 548                 return -EALREADY;
 549
 550         return ieee80211_config_beacon(sdata, params);
 551 }
 552
 553 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 554                                 struct beacon_parameters *params)
 555 {
 556         struct ieee80211_sub_if_data *sdata;
 557         struct beacon_data *old;
 558
 559         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 560
 561         old = sdata->u.ap.beacon;
 562
 563         if (!old)
 564                 return -ENOENT;
 565
 566         return ieee80211_config_beacon(sdata, params);
 567 }
 568
 569 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 570 {
 571         struct ieee80211_sub_if_data *sdata;
 572         struct beacon_data *old;
 573
 574         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 575
 576         old = sdata->u.ap.beacon;
 577
 578         if (!old)
 579                 return -ENOENT;
 580
 581         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 582         synchronize_rcu();
 583         kfree(old);
 584
 585         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 586         return 0;
 587 }
 588
 589 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 590 struct iapp_layer2_update {
 591         u8 da[ETH_ALEN];        /* broadcast */
 592         u8 sa[ETH_ALEN];        /* STA addr */
 593         __be16 len;             /* 6 */
 594         u8 dsap;                /* 0 */
 595         u8 ssap;                /* 0 */
 596         u8 control;
 597         u8 xid_info[3];
 598 } __packed;
 599
 600 static void ieee80211_send_layer2_update(struct sta_info *sta)
 601 {
 602         struct iapp_layer2_update *msg;
 603         struct sk_buff *skb;
 604
 605         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 606          * bridge devices */
 607
 608         skb = dev_alloc_skb(sizeof(*msg));
 609         if (!skb)
 610                 return;
 611         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 612
 613         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 614          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 615
 616         memset(msg->da, 0xff, ETH_ALEN);
 617         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 618         msg->len = htons(6);
 619         msg->dsap = 0;
 620         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 621         msg->control = 0xaf;    /* XID response lsb.1111F101.
 622                                  * F=0 (no poll command; unsolicited frame) */
 623         msg->xid_info[0] = 0x81;        /* XID format identifier */
 624         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 625         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 626
 627         skb->dev = sta->sdata->dev;
 628         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 629         memset(skb->cb, 0, sizeof(skb->cb));
 630         netif_rx_ni(skb);
 631 }
 632
 633 static void sta_apply_parameters(struct ieee80211_local *local,
 634                                  struct sta_info *sta,
 635                                  struct station_parameters *params)
 636 {
 637         unsigned long flags;
 638         u32 rates;
 639         int i, j;
 640         struct ieee80211_supported_band *sband;
 641         struct ieee80211_sub_if_data *sdata = sta->sdata;
 642         u32 mask, set;
 643
 644         sband = local->hw.wiphy->bands[local->oper_channel->band];
 645
 646         spin_lock_irqsave(&sta->flaglock, flags);
 647         mask = params->sta_flags_mask;
 648         set = params->sta_flags_set;
 649
 650         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 651                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 652                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 653                         sta->flags |= WLAN_STA_AUTHORIZED;
 654         }
 655
 656         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 657                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 658                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 659                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 660         }
 661
 662         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 663                 sta->flags &= ~WLAN_STA_WME;
 664                 if (set & BIT(NL80211_STA_FLAG_WME))
 665                         sta->flags |= WLAN_STA_WME;
 666         }
 667
 668         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 669                 sta->flags &= ~WLAN_STA_MFP;
 670                 if (set & BIT(NL80211_STA_FLAG_MFP))
 671                         sta->flags |= WLAN_STA_MFP;
 672         }
 673         spin_unlock_irqrestore(&sta->flaglock, flags);
 674
 675         /*
 676          * cfg80211 validates this (1-2007) and allows setting the AID
 677          * only when creating a new station entry
 678          */
 679         if (params->aid)
 680                 sta->sta.aid = params->aid;
 681
 682         /*
 683          * FIXME: updating the following information is racy when this
 684          *        function is called from ieee80211_change_station().
 685          *        However, all this information should be static so
 686          *        maybe we should just reject attemps to change it.
 687          */
 688
 689         if (params->listen_interval >= 0)
 690                 sta->listen_interval = params->listen_interval;
 691
 692         if (params->supported_rates) {
 693                 rates = 0;
 694
 695                 for (i = 0; i < params->supported_rates_len; i++) {
 696                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 697                         for (j = 0; j < sband->n_bitrates; j++) {
 698                                 if (sband->bitrates[j].bitrate == rate)
 699                                         rates |= BIT(j);
 700                         }
 701                 }
 702                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 703         }
 704
 705         if (params->ht_capa)
 706                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 707                                                   params->ht_capa,
 708                                                   &sta->sta.ht_cap);
 709
 710         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 711                 switch (params->plink_action) {
 712                 case PLINK_ACTION_OPEN:
 713                         mesh_plink_open(sta);
 714                         break;
 715                 case PLINK_ACTION_BLOCK:
 716                         mesh_plink_block(sta);
 717                         break;
 718                 }
 719         }
 720 }
 721
 722 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 723                                  u8 *mac, struct station_parameters *params)
 724 {
 725         struct ieee80211_local *local = wiphy_priv(wiphy);
 726         struct sta_info *sta;
 727         struct ieee80211_sub_if_data *sdata;
 728         int err;
 729         int layer2_update;
 730
 731         if (params->vlan) {
 732                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 733
 734                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 735                     sdata->vif.type != NL80211_IFTYPE_AP)
 736                         return -EINVAL;
 737         } else
 738                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 739
 740         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
 741                 return -EINVAL;
 742
 743         if (is_multicast_ether_addr(mac))
 744                 return -EINVAL;
 745
 746         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 747         if (!sta)
 748                 return -ENOMEM;
 749
 750         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 751
 752         sta_apply_parameters(local, sta, params);
 753
 754         rate_control_rate_init(sta);
 755
 756         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 757                 sdata->vif.type == NL80211_IFTYPE_AP;
 758
 759         err = sta_info_insert_rcu(sta);
 760         if (err) {
 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
 779         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 780
 781         if (mac)
 782                 return sta_info_destroy_addr_bss(sdata, mac);
 783
 784         sta_info_flush(local, sdata);
 785         return 0;
 786 }
 787
 788 static int ieee80211_change_station(struct wiphy *wiphy,
 789                                     struct net_device *dev,
 790                                     u8 *mac,
 791                                     struct station_parameters *params)
 792 {
 793         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 794         struct ieee80211_local *local = wiphy_priv(wiphy);
 795         struct sta_info *sta;
 796         struct ieee80211_sub_if_data *vlansdata;
 797
 798         rcu_read_lock();
 799
 800         sta = sta_info_get_bss(sdata, mac);
 801         if (!sta) {
 802                 rcu_read_unlock();
 803                 return -ENOENT;
 804         }
 805
 806         if (params->vlan && params->vlan != sta->sdata->dev) {
 807                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 808
 809                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 810                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 811                         rcu_read_unlock();
 812                         return -EINVAL;
 813                 }
 814
 815                 if (params->vlan->ieee80211_ptr->use_4addr) {
 816                         if (vlansdata->u.vlan.sta) {
 817                                 rcu_read_unlock();
 818                                 return -EBUSY;
 819                         }
 820
 821                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 822                 }
 823
 824                 sta->sdata = vlansdata;
 825                 ieee80211_send_layer2_update(sta);
 826         }
 827
 828         sta_apply_parameters(local, sta, params);
 829
 830         rcu_read_unlock();
 831
 832         return 0;
 833 }
 834
 835 #ifdef CONFIG_MAC80211_MESH
 836 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 837                                  u8 *dst, u8 *next_hop)
 838 {
 839         struct ieee80211_sub_if_data *sdata;
 840         struct mesh_path *mpath;
 841         struct sta_info *sta;
 842         int err;
 843
 844         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 845
 846         rcu_read_lock();
 847         sta = sta_info_get(sdata, next_hop);
 848         if (!sta) {
 849                 rcu_read_unlock();
 850                 return -ENOENT;
 851         }
 852
 853         err = mesh_path_add(dst, sdata);
 854         if (err) {
 855                 rcu_read_unlock();
 856                 return err;
 857         }
 858
 859         mpath = mesh_path_lookup(dst, sdata);
 860         if (!mpath) {
 861                 rcu_read_unlock();
 862                 return -ENXIO;
 863         }
 864         mesh_path_fix_nexthop(mpath, sta);
 865
 866         rcu_read_unlock();
 867         return 0;
 868 }
 869
 870 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 871                                  u8 *dst)
 872 {
 873         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 874
 875         if (dst)
 876                 return mesh_path_del(dst, sdata);
 877
 878         mesh_path_flush(sdata);
 879         return 0;
 880 }
 881
 882 static int ieee80211_change_mpath(struct wiphy *wiphy,
 883                                     struct net_device *dev,
 884                                     u8 *dst, u8 *next_hop)
 885 {
 886         struct ieee80211_sub_if_data *sdata;
 887         struct mesh_path *mpath;
 888         struct sta_info *sta;
 889
 890         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 891
 892         rcu_read_lock();
 893
 894         sta = sta_info_get(sdata, next_hop);
 895         if (!sta) {
 896                 rcu_read_unlock();
 897                 return -ENOENT;
 898         }
 899
 900         mpath = mesh_path_lookup(dst, sdata);
 901         if (!mpath) {
 902                 rcu_read_unlock();
 903                 return -ENOENT;
 904         }
 905
 906         mesh_path_fix_nexthop(mpath, sta);
 907
 908         rcu_read_unlock();
 909         return 0;
 910 }
 911
 912 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 913                             struct mpath_info *pinfo)
 914 {
 915         if (mpath->next_hop)
 916                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 917         else
 918                 memset(next_hop, 0, ETH_ALEN);
 919
 920         pinfo->generation = mesh_paths_generation;
 921
 922         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 923                         MPATH_INFO_SN |
 924                         MPATH_INFO_METRIC |
 925                         MPATH_INFO_EXPTIME |
 926                         MPATH_INFO_DISCOVERY_TIMEOUT |
 927                         MPATH_INFO_DISCOVERY_RETRIES |
 928                         MPATH_INFO_FLAGS;
 929
 930         pinfo->frame_qlen = mpath->frame_queue.qlen;
 931         pinfo->sn = mpath->sn;
 932         pinfo->metric = mpath->metric;
 933         if (time_before(jiffies, mpath->exp_time))
 934                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 935         pinfo->discovery_timeout =
 936                         jiffies_to_msecs(mpath->discovery_timeout);
 937         pinfo->discovery_retries = mpath->discovery_retries;
 938         pinfo->flags = 0;
 939         if (mpath->flags & MESH_PATH_ACTIVE)
 940                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 941         if (mpath->flags & MESH_PATH_RESOLVING)
 942                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 943         if (mpath->flags & MESH_PATH_SN_VALID)
 944                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 945         if (mpath->flags & MESH_PATH_FIXED)
 946                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 947         if (mpath->flags & MESH_PATH_RESOLVING)
 948                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 949
 950         pinfo->flags = mpath->flags;
 951 }
 952
 953 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 954                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 955
 956 {
 957         struct ieee80211_sub_if_data *sdata;
 958         struct mesh_path *mpath;
 959
 960         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 961
 962         rcu_read_lock();
 963         mpath = mesh_path_lookup(dst, sdata);
 964         if (!mpath) {
 965                 rcu_read_unlock();
 966                 return -ENOENT;
 967         }
 968         memcpy(dst, mpath->dst, ETH_ALEN);
 969         mpath_set_pinfo(mpath, next_hop, pinfo);
 970         rcu_read_unlock();
 971         return 0;
 972 }
 973
 974 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 975                                  int idx, u8 *dst, u8 *next_hop,
 976                                  struct mpath_info *pinfo)
 977 {
 978         struct ieee80211_sub_if_data *sdata;
 979         struct mesh_path *mpath;
 980
 981         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 982
 983         rcu_read_lock();
 984         mpath = mesh_path_lookup_by_idx(idx, sdata);
 985         if (!mpath) {
 986                 rcu_read_unlock();
 987                 return -ENOENT;
 988         }
 989         memcpy(dst, mpath->dst, ETH_ALEN);
 990         mpath_set_pinfo(mpath, next_hop, pinfo);
 991         rcu_read_unlock();
 992         return 0;
 993 }
 994
 995 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
 996                                 struct net_device *dev,
 997                                 struct mesh_config *conf)
 998 {
 999         struct ieee80211_sub_if_data *sdata;
1000         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1001
1002         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1003         return 0;
1004 }
1005
1006 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1007 {
1008         return (mask >> (parm-1)) & 0x1;
1009 }
1010
1011 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1012                                 struct net_device *dev,
1013                                 const struct mesh_config *nconf, u32 mask)
1014 {
1015         struct mesh_config *conf;
1016         struct ieee80211_sub_if_data *sdata;
1017         struct ieee80211_if_mesh *ifmsh;
1018
1019         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1020         ifmsh = &sdata->u.mesh;
1021
1022         /* Set the config options which we are interested in setting */
1023         conf = &(sdata->u.mesh.mshcfg);
1024         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1025                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1026         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1027                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1028         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1029                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1030         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1031                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1032         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1033                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1034         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1035                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1036         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1037                 conf->auto_open_plinks = nconf->auto_open_plinks;
1038         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1039                 conf->dot11MeshHWMPmaxPREQretries =
1040                         nconf->dot11MeshHWMPmaxPREQretries;
1041         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1042                 conf->path_refresh_time = nconf->path_refresh_time;
1043         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1044                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1045         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1046                 conf->dot11MeshHWMPactivePathTimeout =
1047                         nconf->dot11MeshHWMPactivePathTimeout;
1048         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1049                 conf->dot11MeshHWMPpreqMinInterval =
1050                         nconf->dot11MeshHWMPpreqMinInterval;
1051         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1052                            mask))
1053                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1054                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1055         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1056                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1057                 ieee80211_mesh_root_setup(ifmsh);
1058         }
1059         return 0;
1060 }
1061
1062 #endif
1063
1064 static int ieee80211_change_bss(struct wiphy *wiphy,
1065                                 struct net_device *dev,
1066                                 struct bss_parameters *params)
1067 {
1068         struct ieee80211_sub_if_data *sdata;
1069         u32 changed = 0;
1070
1071         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1072
1073         if (params->use_cts_prot >= 0) {
1074                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1075                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1076         }
1077         if (params->use_short_preamble >= 0) {
1078                 sdata->vif.bss_conf.use_short_preamble =
1079                         params->use_short_preamble;
1080                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1081         }
1082
1083         if (!sdata->vif.bss_conf.use_short_slot &&
1084             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1085                 sdata->vif.bss_conf.use_short_slot = true;
1086                 changed |= BSS_CHANGED_ERP_SLOT;
1087         }
1088
1089         if (params->use_short_slot_time >= 0) {
1090                 sdata->vif.bss_conf.use_short_slot =
1091                         params->use_short_slot_time;
1092                 changed |= BSS_CHANGED_ERP_SLOT;
1093         }
1094
1095         if (params->basic_rates) {
1096                 int i, j;
1097                 u32 rates = 0;
1098                 struct ieee80211_local *local = wiphy_priv(wiphy);
1099                 struct ieee80211_supported_band *sband =
1100                         wiphy->bands[local->oper_channel->band];
1101
1102                 for (i = 0; i < params->basic_rates_len; i++) {
1103                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1104                         for (j = 0; j < sband->n_bitrates; j++) {
1105                                 if (sband->bitrates[j].bitrate == rate)
1106                                         rates |= BIT(j);
1107                         }
1108                 }
1109                 sdata->vif.bss_conf.basic_rates = rates;
1110                 changed |= BSS_CHANGED_BASIC_RATES;
1111         }
1112
1113         if (params->ap_isolate >= 0) {
1114                 if (params->ap_isolate)
1115                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1116                 else
1117                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1118         }
1119
1120         ieee80211_bss_info_change_notify(sdata, changed);
1121
1122         return 0;
1123 }
1124
1125 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1126                                     struct ieee80211_txq_params *params)
1127 {
1128         struct ieee80211_local *local = wiphy_priv(wiphy);
1129         struct ieee80211_tx_queue_params p;
1130
1131         if (!local->ops->conf_tx)
1132                 return -EOPNOTSUPP;
1133
1134         memset(&p, 0, sizeof(p));
1135         p.aifs = params->aifs;
1136         p.cw_max = params->cwmax;
1137         p.cw_min = params->cwmin;
1138         p.txop = params->txop;
1139
1140         /*
1141          * Setting tx queue params disables u-apsd because it's only
1142          * called in master mode.
1143          */
1144         p.uapsd = false;
1145
1146         if (drv_conf_tx(local, params->queue, &p)) {
1147                 printk(KERN_DEBUG "%s: failed to set TX queue "
1148                        "parameters for queue %d\n",
1149                        wiphy_name(local->hw.wiphy), params->queue);
1150                 return -EINVAL;
1151         }
1152
1153         return 0;
1154 }
1155
1156 static int ieee80211_set_channel(struct wiphy *wiphy,
1157                                  struct net_device *netdev,
1158                                  struct ieee80211_channel *chan,
1159                                  enum nl80211_channel_type channel_type)
1160 {
1161         struct ieee80211_local *local = wiphy_priv(wiphy);
1162         struct ieee80211_sub_if_data *sdata = NULL;
1163
1164         if (netdev)
1165                 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1166
1167         switch (ieee80211_get_channel_mode(local, NULL)) {
1168         case CHAN_MODE_HOPPING:
1169                 return -EBUSY;
1170         case CHAN_MODE_FIXED:
1171                 if (local->oper_channel != chan)
1172                         return -EBUSY;
1173                 if (!sdata && local->_oper_channel_type == channel_type)
1174                         return 0;
1175                 break;
1176         case CHAN_MODE_UNDEFINED:
1177                 break;
1178         }
1179
1180         local->oper_channel = chan;
1181
1182         if (!ieee80211_set_channel_type(local, sdata, channel_type))
1183                 return -EBUSY;
1184
1185         ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1186         if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1187                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1188
1189         return 0;
1190 }
1191
1192 #ifdef CONFIG_PM
1193 static int ieee80211_suspend(struct wiphy *wiphy)
1194 {
1195         return __ieee80211_suspend(wiphy_priv(wiphy));
1196 }
1197
1198 static int ieee80211_resume(struct wiphy *wiphy)
1199 {
1200         return __ieee80211_resume(wiphy_priv(wiphy));
1201 }
1202 #else
1203 #define ieee80211_suspend NULL
1204 #define ieee80211_resume NULL
1205 #endif
1206
1207 static int ieee80211_scan(struct wiphy *wiphy,
1208                           struct net_device *dev,
1209                           struct cfg80211_scan_request *req)
1210 {
1211         struct ieee80211_sub_if_data *sdata;
1212
1213         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1214
1215         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1216             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1217             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1218             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1219                 return -EOPNOTSUPP;
1220
1221         return ieee80211_request_scan(sdata, req);
1222 }
1223
1224 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1225                           struct cfg80211_auth_request *req)
1226 {
1227         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1228 }
1229
1230 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1231                            struct cfg80211_assoc_request *req)
1232 {
1233         struct ieee80211_local *local = wiphy_priv(wiphy);
1234         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1235
1236         switch (ieee80211_get_channel_mode(local, sdata)) {
1237         case CHAN_MODE_HOPPING:
1238                 return -EBUSY;
1239         case CHAN_MODE_FIXED:
1240                 if (local->oper_channel == req->bss->channel)
1241                         break;
1242                 return -EBUSY;
1243         case CHAN_MODE_UNDEFINED:
1244                 break;
1245         }
1246
1247         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1248 }
1249
1250 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1251                             struct cfg80211_deauth_request *req,
1252                             void *cookie)
1253 {
1254         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1255                                     req, cookie);
1256 }
1257
1258 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1259                               struct cfg80211_disassoc_request *req,
1260                               void *cookie)
1261 {
1262         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1263                                       req, cookie);
1264 }
1265
1266 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1267                                struct cfg80211_ibss_params *params)
1268 {
1269         struct ieee80211_local *local = wiphy_priv(wiphy);
1270         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1271
1272         switch (ieee80211_get_channel_mode(local, sdata)) {
1273         case CHAN_MODE_HOPPING:
1274                 return -EBUSY;
1275         case CHAN_MODE_FIXED:
1276                 if (!params->channel_fixed)
1277                         return -EBUSY;
1278                 if (local->oper_channel == params->channel)
1279                         break;
1280                 return -EBUSY;
1281         case CHAN_MODE_UNDEFINED:
1282                 break;
1283         }
1284
1285         return ieee80211_ibss_join(sdata, params);
1286 }
1287
1288 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1289 {
1290         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1291
1292         return ieee80211_ibss_leave(sdata);
1293 }
1294
1295 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1296 {
1297         struct ieee80211_local *local = wiphy_priv(wiphy);
1298         int err;
1299
1300         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1301                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1302
1303                 if (err)
1304                         return err;
1305         }
1306
1307         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1308                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1309
1310                 if (err)
1311                         return err;
1312         }
1313
1314         if (changed & WIPHY_PARAM_RETRY_SHORT)
1315                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1316         if (changed & WIPHY_PARAM_RETRY_LONG)
1317                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1318         if (changed &
1319             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1320                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1321
1322         return 0;
1323 }
1324
1325 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1326                                   enum nl80211_tx_power_setting type, int mbm)
1327 {
1328         struct ieee80211_local *local = wiphy_priv(wiphy);
1329         struct ieee80211_channel *chan = local->hw.conf.channel;
1330         u32 changes = 0;
1331
1332         switch (type) {
1333         case NL80211_TX_POWER_AUTOMATIC:
1334                 local->user_power_level = -1;
1335                 break;
1336         case NL80211_TX_POWER_LIMITED:
1337                 if (mbm < 0 || (mbm % 100))
1338                         return -EOPNOTSUPP;
1339                 local->user_power_level = MBM_TO_DBM(mbm);
1340                 break;
1341         case NL80211_TX_POWER_FIXED:
1342                 if (mbm < 0 || (mbm % 100))
1343                         return -EOPNOTSUPP;
1344                 /* TODO: move to cfg80211 when it knows the channel */
1345                 if (MBM_TO_DBM(mbm) > chan->max_power)
1346                         return -EINVAL;
1347                 local->user_power_level = MBM_TO_DBM(mbm);
1348                 break;
1349         }
1350
1351         ieee80211_hw_config(local, changes);
1352
1353         return 0;
1354 }
1355
1356 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1357 {
1358         struct ieee80211_local *local = wiphy_priv(wiphy);
1359
1360         *dbm = local->hw.conf.power_level;
1361
1362         return 0;
1363 }
1364
1365 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1366                                   u8 *addr)
1367 {
1368         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1369
1370         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1371
1372         return 0;
1373 }
1374
1375 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1376 {
1377         struct ieee80211_local *local = wiphy_priv(wiphy);
1378
1379         drv_rfkill_poll(local);
1380 }
1381
1382 #ifdef CONFIG_NL80211_TESTMODE
1383 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1384 {
1385         struct ieee80211_local *local = wiphy_priv(wiphy);
1386
1387         if (!local->ops->testmode_cmd)
1388                 return -EOPNOTSUPP;
1389
1390         return local->ops->testmode_cmd(&local->hw, data, len);
1391 }
1392 #endif
1393
1394 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1395                              enum ieee80211_smps_mode smps_mode)
1396 {
1397         const u8 *ap;
1398         enum ieee80211_smps_mode old_req;
1399         int err;
1400
1401         old_req = sdata->u.mgd.req_smps;
1402         sdata->u.mgd.req_smps = smps_mode;
1403
1404         if (old_req == smps_mode &&
1405             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1406                 return 0;
1407
1408         /*
1409          * If not associated, or current association is not an HT
1410          * association, there's no need to send an action frame.
1411          */
1412         if (!sdata->u.mgd.associated ||
1413             sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1414                 mutex_lock(&sdata->local->iflist_mtx);
1415                 ieee80211_recalc_smps(sdata->local, sdata);
1416                 mutex_unlock(&sdata->local->iflist_mtx);
1417                 return 0;
1418         }
1419
1420         ap = sdata->u.mgd.associated->bssid;
1421
1422         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1423                 if (sdata->u.mgd.powersave)
1424                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1425                 else
1426                         smps_mode = IEEE80211_SMPS_OFF;
1427         }
1428
1429         /* send SM PS frame to AP */
1430         err = ieee80211_send_smps_action(sdata, smps_mode,
1431                                          ap, ap);
1432         if (err)
1433                 sdata->u.mgd.req_smps = old_req;
1434
1435         return err;
1436 }
1437
1438 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1439                                     bool enabled, int timeout)
1440 {
1441         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1442         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1443
1444         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1445                 return -EOPNOTSUPP;
1446
1447         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1448                 return -EOPNOTSUPP;
1449
1450         if (enabled == sdata->u.mgd.powersave &&
1451             timeout == local->dynamic_ps_forced_timeout)
1452                 return 0;
1453
1454         sdata->u.mgd.powersave = enabled;
1455         local->dynamic_ps_forced_timeout = timeout;
1456
1457         /* no change, but if automatic follow powersave */
1458         mutex_lock(&sdata->u.mgd.mtx);
1459         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1460         mutex_unlock(&sdata->u.mgd.mtx);
1461
1462         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1463                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1464
1465         ieee80211_recalc_ps(local, -1);
1466
1467         return 0;
1468 }
1469
1470 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1471                                          struct net_device *dev,
1472                                          s32 rssi_thold, u32 rssi_hyst)
1473 {
1474         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1475         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1476         struct ieee80211_vif *vif = &sdata->vif;
1477         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1478
1479         if (rssi_thold == bss_conf->cqm_rssi_thold &&
1480             rssi_hyst == bss_conf->cqm_rssi_hyst)
1481                 return 0;
1482
1483         bss_conf->cqm_rssi_thold = rssi_thold;
1484         bss_conf->cqm_rssi_hyst = rssi_hyst;
1485
1486         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1487                 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1488                         return -EOPNOTSUPP;
1489                 return 0;
1490         }
1491
1492         /* tell the driver upon association, unless already associated */
1493         if (sdata->u.mgd.associated)
1494                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1495
1496         return 0;
1497 }
1498
1499 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1500                                       struct net_device *dev,
1501                                       const u8 *addr,
1502                                       const struct cfg80211_bitrate_mask *mask)
1503 {
1504         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1505         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1506         int i;
1507
1508         /*
1509          * This _could_ be supported by providing a hook for
1510          * drivers for this function, but at this point it
1511          * doesn't seem worth bothering.
1512          */
1513         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1514                 return -EOPNOTSUPP;
1515
1516
1517         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1518                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1519
1520         return 0;
1521 }
1522
1523 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1524                                        struct net_device *dev,
1525                                        struct ieee80211_channel *chan,
1526                                        enum nl80211_channel_type channel_type,
1527                                        unsigned int duration,
1528                                        u64 *cookie)
1529 {
1530         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1531
1532         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1533                                               duration, cookie);
1534 }
1535
1536 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1537                                               struct net_device *dev,
1538                                               u64 cookie)
1539 {
1540         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1541
1542         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1543 }
1544
1545 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1546                             struct ieee80211_channel *chan,
1547                             enum nl80211_channel_type channel_type,
1548                             bool channel_type_valid,
1549                             const u8 *buf, size_t len, u64 *cookie)
1550 {
1551         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1552         struct ieee80211_local *local = sdata->local;
1553         struct sk_buff *skb;
1554         struct sta_info *sta;
1555         const struct ieee80211_mgmt *mgmt = (void *)buf;
1556         u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1557                     IEEE80211_TX_CTL_REQ_TX_STATUS;
1558
1559         /* Check that we are on the requested channel for transmission */
1560         if (chan != local->tmp_channel &&
1561             chan != local->oper_channel)
1562                 return -EBUSY;
1563         if (channel_type_valid &&
1564             (channel_type != local->tmp_channel_type &&
1565              channel_type != local->_oper_channel_type))
1566                 return -EBUSY;
1567
1568         switch (sdata->vif.type) {
1569         case NL80211_IFTYPE_ADHOC:
1570                 if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1571                         break;
1572                 rcu_read_lock();
1573                 sta = sta_info_get(sdata, mgmt->da);
1574                 rcu_read_unlock();
1575                 if (!sta)
1576                         return -ENOLINK;
1577                 break;
1578         case NL80211_IFTYPE_STATION:
1579                 if (!(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED))
1580                         flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
1581                 break;
1582         default:
1583                 return -EOPNOTSUPP;
1584         }
1585
1586         skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1587         if (!skb)
1588                 return -ENOMEM;
1589         skb_reserve(skb, local->hw.extra_tx_headroom);
1590
1591         memcpy(skb_put(skb, len), buf, len);
1592
1593         IEEE80211_SKB_CB(skb)->flags = flags;
1594
1595         skb->dev = sdata->dev;
1596         ieee80211_tx_skb(sdata, skb);
1597
1598         *cookie = (unsigned long) skb;
1599         return 0;
1600 }
1601
1602 struct cfg80211_ops mac80211_config_ops = {
1603         .add_virtual_intf = ieee80211_add_iface,
1604         .del_virtual_intf = ieee80211_del_iface,
1605         .change_virtual_intf = ieee80211_change_iface,
1606         .add_key = ieee80211_add_key,
1607         .del_key = ieee80211_del_key,
1608         .get_key = ieee80211_get_key,
1609         .set_default_key = ieee80211_config_default_key,
1610         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1611         .add_beacon = ieee80211_add_beacon,
1612         .set_beacon = ieee80211_set_beacon,
1613         .del_beacon = ieee80211_del_beacon,
1614         .add_station = ieee80211_add_station,
1615         .del_station = ieee80211_del_station,
1616         .change_station = ieee80211_change_station,
1617         .get_station = ieee80211_get_station,
1618         .dump_station = ieee80211_dump_station,
1619         .dump_survey = ieee80211_dump_survey,
1620 #ifdef CONFIG_MAC80211_MESH
1621         .add_mpath = ieee80211_add_mpath,
1622         .del_mpath = ieee80211_del_mpath,
1623         .change_mpath = ieee80211_change_mpath,
1624         .get_mpath = ieee80211_get_mpath,
1625         .dump_mpath = ieee80211_dump_mpath,
1626         .set_mesh_params = ieee80211_set_mesh_params,
1627         .get_mesh_params = ieee80211_get_mesh_params,
1628 #endif
1629         .change_bss = ieee80211_change_bss,
1630         .set_txq_params = ieee80211_set_txq_params,
1631         .set_channel = ieee80211_set_channel,
1632         .suspend = ieee80211_suspend,
1633         .resume = ieee80211_resume,
1634         .scan = ieee80211_scan,
1635         .auth = ieee80211_auth,
1636         .assoc = ieee80211_assoc,
1637         .deauth = ieee80211_deauth,
1638         .disassoc = ieee80211_disassoc,
1639         .join_ibss = ieee80211_join_ibss,
1640         .leave_ibss = ieee80211_leave_ibss,
1641         .set_wiphy_params = ieee80211_set_wiphy_params,
1642         .set_tx_power = ieee80211_set_tx_power,
1643         .get_tx_power = ieee80211_get_tx_power,
1644         .set_wds_peer = ieee80211_set_wds_peer,
1645         .rfkill_poll = ieee80211_rfkill_poll,
1646         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1647         .set_power_mgmt = ieee80211_set_power_mgmt,
1648         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1649         .remain_on_channel = ieee80211_remain_on_channel,
1650         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1651         .action = ieee80211_action,
1652         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1653 };