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 int ieee80211_add_iface(struct wiphy *wiphy, char *name,
  23                                enum nl80211_iftype type, u32 *flags,
  24                                struct vif_params *params)
  25 {
  26         struct ieee80211_local *local = wiphy_priv(wiphy);
  27         struct net_device *dev;
  28         struct ieee80211_sub_if_data *sdata;
  29         int err;
  30
  31         err = ieee80211_if_add(local, name, &dev, type, params);
  32         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
  33                 return err;
  34
  35         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  36         sdata->u.mntr_flags = *flags;
  37         return 0;
  38 }
  39
  40 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
  41 {
  42         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
  43
  44         return 0;
  45 }
  46
  47 static int ieee80211_change_iface(struct wiphy *wiphy,
  48                                   struct net_device *dev,
  49                                   enum nl80211_iftype type, u32 *flags,
  50                                   struct vif_params *params)
  51 {
  52         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  53         int ret;
  54
  55         ret = ieee80211_if_change_type(sdata, type);
  56         if (ret)
  57                 return ret;
  58
  59         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
  60                 ieee80211_sdata_set_mesh_id(sdata,
  61                                             params->mesh_id_len,
  62                                             params->mesh_id);
  63
  64         if (type == NL80211_IFTYPE_AP_VLAN &&
  65             params && params->use_4addr == 0)
  66                 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
  67         else if (type == NL80211_IFTYPE_STATION &&
  68                  params && params->use_4addr >= 0)
  69                 sdata->u.mgd.use_4addr = params->use_4addr;
  70
  71         if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
  72                 struct ieee80211_local *local = sdata->local;
  73
  74                 if (ieee80211_sdata_running(sdata)) {
  75                         /*
  76                          * Prohibit MONITOR_FLAG_COOK_FRAMES to be
  77                          * changed while the interface is up.
  78                          * Else we would need to add a lot of cruft
  79                          * to update everything:
  80                          *      cooked_mntrs, monitor and all fif_* counters
  81                          *      reconfigure hardware
  82                          */
  83                         if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
  84                             (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
  85                                 return -EBUSY;
  86
  87                         ieee80211_adjust_monitor_flags(sdata, -1);
  88                         sdata->u.mntr_flags = *flags;
  89                         ieee80211_adjust_monitor_flags(sdata, 1);
  90
  91                         ieee80211_configure_filter(local);
  92                 } else {
  93                         /*
  94                          * Because the interface is down, ieee80211_do_stop
  95                          * and ieee80211_do_open take care of "everything"
  96                          * mentioned in the comment above.
  97                          */
  98                         sdata->u.mntr_flags = *flags;
  99                 }
 100         }
 101
 102         return 0;
 103 }
 104
 105 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 106                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 107                              struct key_params *params)
 108 {
 109         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 110         struct sta_info *sta = NULL;
 111         struct ieee80211_key *key;
 112         int err;
 113
 114         if (!ieee80211_sdata_running(sdata))
 115                 return -ENETDOWN;
 116
 117         /* reject WEP and TKIP keys if WEP failed to initialize */
 118         switch (params->cipher) {
 119         case WLAN_CIPHER_SUITE_WEP40:
 120         case WLAN_CIPHER_SUITE_TKIP:
 121         case WLAN_CIPHER_SUITE_WEP104:
 122                 if (IS_ERR(sdata->local->wep_tx_tfm))
 123                         return -EINVAL;
 124                 break;
 125         default:
 126                 break;
 127         }
 128
 129         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 130                                   params->key, params->seq_len, params->seq);
 131         if (IS_ERR(key))
 132                 return PTR_ERR(key);
 133
 134         if (pairwise)
 135                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 136
 137         mutex_lock(&sdata->local->sta_mtx);
 138
 139         if (mac_addr) {
 140                 sta = sta_info_get_bss(sdata, mac_addr);
 141                 if (!sta) {
 142                         ieee80211_key_free(sdata->local, key);
 143                         err = -ENOENT;
 144                         goto out_unlock;
 145                 }
 146         }
 147
 148         err = ieee80211_key_link(key, sdata, sta);
 149         if (err)
 150                 ieee80211_key_free(sdata->local, key);
 151
 152  out_unlock:
 153         mutex_unlock(&sdata->local->sta_mtx);
 154
 155         return err;
 156 }
 157
 158 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 159                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 160 {
 161         struct ieee80211_sub_if_data *sdata;
 162         struct sta_info *sta;
 163         int ret;
 164
 165         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 166
 167         mutex_lock(&sdata->local->sta_mtx);
 168
 169         if (mac_addr) {
 170                 ret = -ENOENT;
 171
 172                 sta = sta_info_get_bss(sdata, mac_addr);
 173                 if (!sta)
 174                         goto out_unlock;
 175
 176                 if (pairwise) {
 177                         if (sta->ptk) {
 178                                 ieee80211_key_free(sdata->local, sta->ptk);
 179                                 ret = 0;
 180                         }
 181                 } else {
 182                         if (sta->gtk[key_idx]) {
 183                                 ieee80211_key_free(sdata->local,
 184                                                    sta->gtk[key_idx]);
 185                                 ret = 0;
 186                         }
 187                 }
 188
 189                 goto out_unlock;
 190         }
 191
 192         if (!sdata->keys[key_idx]) {
 193                 ret = -ENOENT;
 194                 goto out_unlock;
 195         }
 196
 197         ieee80211_key_free(sdata->local, sdata->keys[key_idx]);
 198         WARN_ON(sdata->keys[key_idx]);
 199
 200         ret = 0;
 201  out_unlock:
 202         mutex_unlock(&sdata->local->sta_mtx);
 203
 204         return ret;
 205 }
 206
 207 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 208                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 209                              void *cookie,
 210                              void (*callback)(void *cookie,
 211                                               struct key_params *params))
 212 {
 213         struct ieee80211_sub_if_data *sdata;
 214         struct sta_info *sta = NULL;
 215         u8 seq[6] = {0};
 216         struct key_params params;
 217         struct ieee80211_key *key = NULL;
 218         u32 iv32;
 219         u16 iv16;
 220         int err = -ENOENT;
 221
 222         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 223
 224         rcu_read_lock();
 225
 226         if (mac_addr) {
 227                 sta = sta_info_get_bss(sdata, mac_addr);
 228                 if (!sta)
 229                         goto out;
 230
 231                 if (pairwise)
 232                         key = sta->ptk;
 233                 else if (key_idx < NUM_DEFAULT_KEYS)
 234                         key = sta->gtk[key_idx];
 235         } else
 236                 key = sdata->keys[key_idx];
 237
 238         if (!key)
 239                 goto out;
 240
 241         memset(&params, 0, sizeof(params));
 242
 243         params.cipher = key->conf.cipher;
 244
 245         switch (key->conf.cipher) {
 246         case WLAN_CIPHER_SUITE_TKIP:
 247                 iv32 = key->u.tkip.tx.iv32;
 248                 iv16 = key->u.tkip.tx.iv16;
 249
 250                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 251                         drv_get_tkip_seq(sdata->local,
 252                                          key->conf.hw_key_idx,
 253                                          &iv32, &iv16);
 254
 255                 seq[0] = iv16 & 0xff;
 256                 seq[1] = (iv16 >> 8) & 0xff;
 257                 seq[2] = iv32 & 0xff;
 258                 seq[3] = (iv32 >> 8) & 0xff;
 259                 seq[4] = (iv32 >> 16) & 0xff;
 260                 seq[5] = (iv32 >> 24) & 0xff;
 261                 params.seq = seq;
 262                 params.seq_len = 6;
 263                 break;
 264         case WLAN_CIPHER_SUITE_CCMP:
 265                 seq[0] = key->u.ccmp.tx_pn[5];
 266                 seq[1] = key->u.ccmp.tx_pn[4];
 267                 seq[2] = key->u.ccmp.tx_pn[3];
 268                 seq[3] = key->u.ccmp.tx_pn[2];
 269                 seq[4] = key->u.ccmp.tx_pn[1];
 270                 seq[5] = key->u.ccmp.tx_pn[0];
 271                 params.seq = seq;
 272                 params.seq_len = 6;
 273                 break;
 274         case WLAN_CIPHER_SUITE_AES_CMAC:
 275                 seq[0] = key->u.aes_cmac.tx_pn[5];
 276                 seq[1] = key->u.aes_cmac.tx_pn[4];
 277                 seq[2] = key->u.aes_cmac.tx_pn[3];
 278                 seq[3] = key->u.aes_cmac.tx_pn[2];
 279                 seq[4] = key->u.aes_cmac.tx_pn[1];
 280                 seq[5] = key->u.aes_cmac.tx_pn[0];
 281                 params.seq = seq;
 282                 params.seq_len = 6;
 283                 break;
 284         }
 285
 286         params.key = key->conf.key;
 287         params.key_len = key->conf.keylen;
 288
 289         callback(cookie, &params);
 290         err = 0;
 291
 292  out:
 293         rcu_read_unlock();
 294         return err;
 295 }
 296
 297 static int ieee80211_config_default_key(struct wiphy *wiphy,
 298                                         struct net_device *dev,
 299                                         u8 key_idx)
 300 {
 301         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 302
 303         ieee80211_set_default_key(sdata, key_idx);
 304
 305         return 0;
 306 }
 307
 308 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 309                                              struct net_device *dev,
 310                                              u8 key_idx)
 311 {
 312         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 313
 314         ieee80211_set_default_mgmt_key(sdata, key_idx);
 315
 316         return 0;
 317 }
 318
 319 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 320 {
 321         struct ieee80211_sub_if_data *sdata = sta->sdata;
 322
 323         sinfo->generation = sdata->local->sta_generation;
 324
 325         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 326                         STATION_INFO_RX_BYTES |
 327                         STATION_INFO_TX_BYTES |
 328                         STATION_INFO_RX_PACKETS |
 329                         STATION_INFO_TX_PACKETS |
 330                         STATION_INFO_TX_RETRIES |
 331                         STATION_INFO_TX_FAILED |
 332                         STATION_INFO_TX_BITRATE |
 333                         STATION_INFO_RX_DROP_MISC;
 334
 335         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 336         sinfo->rx_bytes = sta->rx_bytes;
 337         sinfo->tx_bytes = sta->tx_bytes;
 338         sinfo->rx_packets = sta->rx_packets;
 339         sinfo->tx_packets = sta->tx_packets;
 340         sinfo->tx_retries = sta->tx_retry_count;
 341         sinfo->tx_failed = sta->tx_retry_failed;
 342         sinfo->rx_dropped_misc = sta->rx_dropped;
 343
 344         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 345             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 346                 sinfo->filled |= STATION_INFO_SIGNAL;
 347                 sinfo->signal = (s8)sta->last_signal;
 348         }
 349
 350         sinfo->txrate.flags = 0;
 351         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 352                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 353         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 354                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 355         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 356                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 357
 358         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 359                 struct ieee80211_supported_band *sband;
 360                 sband = sta->local->hw.wiphy->bands[
 361                                 sta->local->hw.conf.channel->band];
 362                 sinfo->txrate.legacy =
 363                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 364         } else
 365                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 366
 367         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 368 #ifdef CONFIG_MAC80211_MESH
 369                 sinfo->filled |= STATION_INFO_LLID |
 370                                  STATION_INFO_PLID |
 371                                  STATION_INFO_PLINK_STATE;
 372
 373                 sinfo->llid = le16_to_cpu(sta->llid);
 374                 sinfo->plid = le16_to_cpu(sta->plid);
 375                 sinfo->plink_state = sta->plink_state;
 376 #endif
 377         }
 378 }
 379
 380
 381 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 382                                  int idx, u8 *mac, struct station_info *sinfo)
 383 {
 384         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 385         struct sta_info *sta;
 386         int ret = -ENOENT;
 387
 388         rcu_read_lock();
 389
 390         sta = sta_info_get_by_idx(sdata, idx);
 391         if (sta) {
 392                 ret = 0;
 393                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 394                 sta_set_sinfo(sta, sinfo);
 395         }
 396
 397         rcu_read_unlock();
 398
 399         return ret;
 400 }
 401
 402 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 403                                  int idx, struct survey_info *survey)
 404 {
 405         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 406
 407         return drv_get_survey(local, idx, survey);
 408 }
 409
 410 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 411                                  u8 *mac, struct station_info *sinfo)
 412 {
 413         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 414         struct sta_info *sta;
 415         int ret = -ENOENT;
 416
 417         rcu_read_lock();
 418
 419         sta = sta_info_get_bss(sdata, mac);
 420         if (sta) {
 421                 ret = 0;
 422                 sta_set_sinfo(sta, sinfo);
 423         }
 424
 425         rcu_read_unlock();
 426
 427         return ret;
 428 }
 429
 430 /*
 431  * This handles both adding a beacon and setting new beacon info
 432  */
 433 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 434                                    struct beacon_parameters *params)
 435 {
 436         struct beacon_data *new, *old;
 437         int new_head_len, new_tail_len;
 438         int size;
 439         int err = -EINVAL;
 440
 441         old = sdata->u.ap.beacon;
 442
 443         /* head must not be zero-length */
 444         if (params->head && !params->head_len)
 445                 return -EINVAL;
 446
 447         /*
 448          * This is a kludge. beacon interval should really be part
 449          * of the beacon information.
 450          */
 451         if (params->interval &&
 452             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 453                 sdata->vif.bss_conf.beacon_int = params->interval;
 454                 ieee80211_bss_info_change_notify(sdata,
 455                                                  BSS_CHANGED_BEACON_INT);
 456         }
 457
 458         /* Need to have a beacon head if we don't have one yet */
 459         if (!params->head && !old)
 460                 return err;
 461
 462         /* sorry, no way to start beaconing without dtim period */
 463         if (!params->dtim_period && !old)
 464                 return err;
 465
 466         /* new or old head? */
 467         if (params->head)
 468                 new_head_len = params->head_len;
 469         else
 470                 new_head_len = old->head_len;
 471
 472         /* new or old tail? */
 473         if (params->tail || !old)
 474                 /* params->tail_len will be zero for !params->tail */
 475                 new_tail_len = params->tail_len;
 476         else
 477                 new_tail_len = old->tail_len;
 478
 479         size = sizeof(*new) + new_head_len + new_tail_len;
 480
 481         new = kzalloc(size, GFP_KERNEL);
 482         if (!new)
 483                 return -ENOMEM;
 484
 485         /* start filling the new info now */
 486
 487         /* new or old dtim period? */
 488         if (params->dtim_period)
 489                 new->dtim_period = params->dtim_period;
 490         else
 491                 new->dtim_period = old->dtim_period;
 492
 493         /*
 494          * pointers go into the block we allocated,
 495          * memory is | beacon_data | head | tail |
 496          */
 497         new->head = ((u8 *) new) + sizeof(*new);
 498         new->tail = new->head + new_head_len;
 499         new->head_len = new_head_len;
 500         new->tail_len = new_tail_len;
 501
 502         /* copy in head */
 503         if (params->head)
 504                 memcpy(new->head, params->head, new_head_len);
 505         else
 506                 memcpy(new->head, old->head, new_head_len);
 507
 508         /* copy in optional tail */
 509         if (params->tail)
 510                 memcpy(new->tail, params->tail, new_tail_len);
 511         else
 512                 if (old)
 513                         memcpy(new->tail, old->tail, new_tail_len);
 514
 515         sdata->vif.bss_conf.dtim_period = new->dtim_period;
 516
 517         rcu_assign_pointer(sdata->u.ap.beacon, new);
 518
 519         synchronize_rcu();
 520
 521         kfree(old);
 522
 523         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 524                                                 BSS_CHANGED_BEACON);
 525         return 0;
 526 }
 527
 528 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 529                                 struct beacon_parameters *params)
 530 {
 531         struct ieee80211_sub_if_data *sdata;
 532         struct beacon_data *old;
 533
 534         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 535
 536         old = sdata->u.ap.beacon;
 537
 538         if (old)
 539                 return -EALREADY;
 540
 541         return ieee80211_config_beacon(sdata, params);
 542 }
 543
 544 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 545                                 struct beacon_parameters *params)
 546 {
 547         struct ieee80211_sub_if_data *sdata;
 548         struct beacon_data *old;
 549
 550         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 551
 552         old = sdata->u.ap.beacon;
 553
 554         if (!old)
 555                 return -ENOENT;
 556
 557         return ieee80211_config_beacon(sdata, params);
 558 }
 559
 560 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 561 {
 562         struct ieee80211_sub_if_data *sdata;
 563         struct beacon_data *old;
 564
 565         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 566
 567         old = sdata->u.ap.beacon;
 568
 569         if (!old)
 570                 return -ENOENT;
 571
 572         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 573         synchronize_rcu();
 574         kfree(old);
 575
 576         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 577         return 0;
 578 }
 579
 580 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 581 struct iapp_layer2_update {
 582         u8 da[ETH_ALEN];        /* broadcast */
 583         u8 sa[ETH_ALEN];        /* STA addr */
 584         __be16 len;             /* 6 */
 585         u8 dsap;                /* 0 */
 586         u8 ssap;                /* 0 */
 587         u8 control;
 588         u8 xid_info[3];
 589 } __packed;
 590
 591 static void ieee80211_send_layer2_update(struct sta_info *sta)
 592 {
 593         struct iapp_layer2_update *msg;
 594         struct sk_buff *skb;
 595
 596         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 597          * bridge devices */
 598
 599         skb = dev_alloc_skb(sizeof(*msg));
 600         if (!skb)
 601                 return;
 602         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 603
 604         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 605          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 606
 607         memset(msg->da, 0xff, ETH_ALEN);
 608         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 609         msg->len = htons(6);
 610         msg->dsap = 0;
 611         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 612         msg->control = 0xaf;    /* XID response lsb.1111F101.
 613                                  * F=0 (no poll command; unsolicited frame) */
 614         msg->xid_info[0] = 0x81;        /* XID format identifier */
 615         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 616         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 617
 618         skb->dev = sta->sdata->dev;
 619         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 620         memset(skb->cb, 0, sizeof(skb->cb));
 621         netif_rx_ni(skb);
 622 }
 623
 624 static void sta_apply_parameters(struct ieee80211_local *local,
 625                                  struct sta_info *sta,
 626                                  struct station_parameters *params)
 627 {
 628         unsigned long flags;
 629         u32 rates;
 630         int i, j;
 631         struct ieee80211_supported_band *sband;
 632         struct ieee80211_sub_if_data *sdata = sta->sdata;
 633         u32 mask, set;
 634
 635         sband = local->hw.wiphy->bands[local->oper_channel->band];
 636
 637         spin_lock_irqsave(&sta->flaglock, flags);
 638         mask = params->sta_flags_mask;
 639         set = params->sta_flags_set;
 640
 641         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 642                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 643                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 644                         sta->flags |= WLAN_STA_AUTHORIZED;
 645         }
 646
 647         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 648                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 649                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 650                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 651         }
 652
 653         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 654                 sta->flags &= ~WLAN_STA_WME;
 655                 if (set & BIT(NL80211_STA_FLAG_WME))
 656                         sta->flags |= WLAN_STA_WME;
 657         }
 658
 659         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 660                 sta->flags &= ~WLAN_STA_MFP;
 661                 if (set & BIT(NL80211_STA_FLAG_MFP))
 662                         sta->flags |= WLAN_STA_MFP;
 663         }
 664         spin_unlock_irqrestore(&sta->flaglock, flags);
 665
 666         /*
 667          * cfg80211 validates this (1-2007) and allows setting the AID
 668          * only when creating a new station entry
 669          */
 670         if (params->aid)
 671                 sta->sta.aid = params->aid;
 672
 673         /*
 674          * FIXME: updating the following information is racy when this
 675          *        function is called from ieee80211_change_station().
 676          *        However, all this information should be static so
 677          *        maybe we should just reject attemps to change it.
 678          */
 679
 680         if (params->listen_interval >= 0)
 681                 sta->listen_interval = params->listen_interval;
 682
 683         if (params->supported_rates) {
 684                 rates = 0;
 685
 686                 for (i = 0; i < params->supported_rates_len; i++) {
 687                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 688                         for (j = 0; j < sband->n_bitrates; j++) {
 689                                 if (sband->bitrates[j].bitrate == rate)
 690                                         rates |= BIT(j);
 691                         }
 692                 }
 693                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 694         }
 695
 696         if (params->ht_capa)
 697                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 698                                                   params->ht_capa,
 699                                                   &sta->sta.ht_cap);
 700
 701         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 702                 switch (params->plink_action) {
 703                 case PLINK_ACTION_OPEN:
 704                         mesh_plink_open(sta);
 705                         break;
 706                 case PLINK_ACTION_BLOCK:
 707                         mesh_plink_block(sta);
 708                         break;
 709                 }
 710         }
 711 }
 712
 713 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 714                                  u8 *mac, struct station_parameters *params)
 715 {
 716         struct ieee80211_local *local = wiphy_priv(wiphy);
 717         struct sta_info *sta;
 718         struct ieee80211_sub_if_data *sdata;
 719         int err;
 720         int layer2_update;
 721
 722         if (params->vlan) {
 723                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 724
 725                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 726                     sdata->vif.type != NL80211_IFTYPE_AP)
 727                         return -EINVAL;
 728         } else
 729                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 730
 731         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
 732                 return -EINVAL;
 733
 734         if (is_multicast_ether_addr(mac))
 735                 return -EINVAL;
 736
 737         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 738         if (!sta)
 739                 return -ENOMEM;
 740
 741         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 742
 743         sta_apply_parameters(local, sta, params);
 744
 745         rate_control_rate_init(sta);
 746
 747         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 748                 sdata->vif.type == NL80211_IFTYPE_AP;
 749
 750         err = sta_info_insert_rcu(sta);
 751         if (err) {
 752                 rcu_read_unlock();
 753                 return err;
 754         }
 755
 756         if (layer2_update)
 757                 ieee80211_send_layer2_update(sta);
 758
 759         rcu_read_unlock();
 760
 761         return 0;
 762 }
 763
 764 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 765                                  u8 *mac)
 766 {
 767         struct ieee80211_local *local = wiphy_priv(wiphy);
 768         struct ieee80211_sub_if_data *sdata;
 769
 770         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 771
 772         if (mac)
 773                 return sta_info_destroy_addr_bss(sdata, mac);
 774
 775         sta_info_flush(local, sdata);
 776         return 0;
 777 }
 778
 779 static int ieee80211_change_station(struct wiphy *wiphy,
 780                                     struct net_device *dev,
 781                                     u8 *mac,
 782                                     struct station_parameters *params)
 783 {
 784         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 785         struct ieee80211_local *local = wiphy_priv(wiphy);
 786         struct sta_info *sta;
 787         struct ieee80211_sub_if_data *vlansdata;
 788
 789         rcu_read_lock();
 790
 791         sta = sta_info_get_bss(sdata, mac);
 792         if (!sta) {
 793                 rcu_read_unlock();
 794                 return -ENOENT;
 795         }
 796
 797         if (params->vlan && params->vlan != sta->sdata->dev) {
 798                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 799
 800                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 801                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 802                         rcu_read_unlock();
 803                         return -EINVAL;
 804                 }
 805
 806                 if (params->vlan->ieee80211_ptr->use_4addr) {
 807                         if (vlansdata->u.vlan.sta) {
 808                                 rcu_read_unlock();
 809                                 return -EBUSY;
 810                         }
 811
 812                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
 813                 }
 814
 815                 sta->sdata = vlansdata;
 816                 ieee80211_send_layer2_update(sta);
 817         }
 818
 819         sta_apply_parameters(local, sta, params);
 820
 821         rcu_read_unlock();
 822
 823         return 0;
 824 }
 825
 826 #ifdef CONFIG_MAC80211_MESH
 827 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
 828                                  u8 *dst, u8 *next_hop)
 829 {
 830         struct ieee80211_sub_if_data *sdata;
 831         struct mesh_path *mpath;
 832         struct sta_info *sta;
 833         int err;
 834
 835         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 836
 837         rcu_read_lock();
 838         sta = sta_info_get(sdata, next_hop);
 839         if (!sta) {
 840                 rcu_read_unlock();
 841                 return -ENOENT;
 842         }
 843
 844         err = mesh_path_add(dst, sdata);
 845         if (err) {
 846                 rcu_read_unlock();
 847                 return err;
 848         }
 849
 850         mpath = mesh_path_lookup(dst, sdata);
 851         if (!mpath) {
 852                 rcu_read_unlock();
 853                 return -ENXIO;
 854         }
 855         mesh_path_fix_nexthop(mpath, sta);
 856
 857         rcu_read_unlock();
 858         return 0;
 859 }
 860
 861 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 862                                  u8 *dst)
 863 {
 864         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 865
 866         if (dst)
 867                 return mesh_path_del(dst, sdata);
 868
 869         mesh_path_flush(sdata);
 870         return 0;
 871 }
 872
 873 static int ieee80211_change_mpath(struct wiphy *wiphy,
 874                                     struct net_device *dev,
 875                                     u8 *dst, u8 *next_hop)
 876 {
 877         struct ieee80211_sub_if_data *sdata;
 878         struct mesh_path *mpath;
 879         struct sta_info *sta;
 880
 881         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 882
 883         rcu_read_lock();
 884
 885         sta = sta_info_get(sdata, next_hop);
 886         if (!sta) {
 887                 rcu_read_unlock();
 888                 return -ENOENT;
 889         }
 890
 891         mpath = mesh_path_lookup(dst, sdata);
 892         if (!mpath) {
 893                 rcu_read_unlock();
 894                 return -ENOENT;
 895         }
 896
 897         mesh_path_fix_nexthop(mpath, sta);
 898
 899         rcu_read_unlock();
 900         return 0;
 901 }
 902
 903 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 904                             struct mpath_info *pinfo)
 905 {
 906         if (mpath->next_hop)
 907                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 908         else
 909                 memset(next_hop, 0, ETH_ALEN);
 910
 911         pinfo->generation = mesh_paths_generation;
 912
 913         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 914                         MPATH_INFO_SN |
 915                         MPATH_INFO_METRIC |
 916                         MPATH_INFO_EXPTIME |
 917                         MPATH_INFO_DISCOVERY_TIMEOUT |
 918                         MPATH_INFO_DISCOVERY_RETRIES |
 919                         MPATH_INFO_FLAGS;
 920
 921         pinfo->frame_qlen = mpath->frame_queue.qlen;
 922         pinfo->sn = mpath->sn;
 923         pinfo->metric = mpath->metric;
 924         if (time_before(jiffies, mpath->exp_time))
 925                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
 926         pinfo->discovery_timeout =
 927                         jiffies_to_msecs(mpath->discovery_timeout);
 928         pinfo->discovery_retries = mpath->discovery_retries;
 929         pinfo->flags = 0;
 930         if (mpath->flags & MESH_PATH_ACTIVE)
 931                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
 932         if (mpath->flags & MESH_PATH_RESOLVING)
 933                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 934         if (mpath->flags & MESH_PATH_SN_VALID)
 935                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
 936         if (mpath->flags & MESH_PATH_FIXED)
 937                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
 938         if (mpath->flags & MESH_PATH_RESOLVING)
 939                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
 940
 941         pinfo->flags = mpath->flags;
 942 }
 943
 944 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
 945                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
 946
 947 {
 948         struct ieee80211_sub_if_data *sdata;
 949         struct mesh_path *mpath;
 950
 951         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 952
 953         rcu_read_lock();
 954         mpath = mesh_path_lookup(dst, sdata);
 955         if (!mpath) {
 956                 rcu_read_unlock();
 957                 return -ENOENT;
 958         }
 959         memcpy(dst, mpath->dst, ETH_ALEN);
 960         mpath_set_pinfo(mpath, next_hop, pinfo);
 961         rcu_read_unlock();
 962         return 0;
 963 }
 964
 965 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
 966                                  int idx, u8 *dst, u8 *next_hop,
 967                                  struct mpath_info *pinfo)
 968 {
 969         struct ieee80211_sub_if_data *sdata;
 970         struct mesh_path *mpath;
 971
 972         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 973
 974         rcu_read_lock();
 975         mpath = mesh_path_lookup_by_idx(idx, sdata);
 976         if (!mpath) {
 977                 rcu_read_unlock();
 978                 return -ENOENT;
 979         }
 980         memcpy(dst, mpath->dst, ETH_ALEN);
 981         mpath_set_pinfo(mpath, next_hop, pinfo);
 982         rcu_read_unlock();
 983         return 0;
 984 }
 985
 986 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
 987                                 struct net_device *dev,
 988                                 struct mesh_config *conf)
 989 {
 990         struct ieee80211_sub_if_data *sdata;
 991         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 992
 993         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
 994         return 0;
 995 }
 996
 997 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
 998 {
 999         return (mask >> (parm-1)) & 0x1;
1000 }
1001
1002 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1003                                 struct net_device *dev,
1004                                 const struct mesh_config *nconf, u32 mask)
1005 {
1006         struct mesh_config *conf;
1007         struct ieee80211_sub_if_data *sdata;
1008         struct ieee80211_if_mesh *ifmsh;
1009
1010         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1011         ifmsh = &sdata->u.mesh;
1012
1013         /* Set the config options which we are interested in setting */
1014         conf = &(sdata->u.mesh.mshcfg);
1015         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1016                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1017         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1018                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1019         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1020                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1021         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1022                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1023         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1024                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1025         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1026                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1027         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1028                 conf->auto_open_plinks = nconf->auto_open_plinks;
1029         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1030                 conf->dot11MeshHWMPmaxPREQretries =
1031                         nconf->dot11MeshHWMPmaxPREQretries;
1032         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1033                 conf->path_refresh_time = nconf->path_refresh_time;
1034         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1035                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1036         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1037                 conf->dot11MeshHWMPactivePathTimeout =
1038                         nconf->dot11MeshHWMPactivePathTimeout;
1039         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1040                 conf->dot11MeshHWMPpreqMinInterval =
1041                         nconf->dot11MeshHWMPpreqMinInterval;
1042         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1043                            mask))
1044                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1045                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1046         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1047                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1048                 ieee80211_mesh_root_setup(ifmsh);
1049         }
1050         return 0;
1051 }
1052
1053 #endif
1054
1055 static int ieee80211_change_bss(struct wiphy *wiphy,
1056                                 struct net_device *dev,
1057                                 struct bss_parameters *params)
1058 {
1059         struct ieee80211_sub_if_data *sdata;
1060         u32 changed = 0;
1061
1062         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1063
1064         if (params->use_cts_prot >= 0) {
1065                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1066                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1067         }
1068         if (params->use_short_preamble >= 0) {
1069                 sdata->vif.bss_conf.use_short_preamble =
1070                         params->use_short_preamble;
1071                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1072         }
1073
1074         if (!sdata->vif.bss_conf.use_short_slot &&
1075             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1076                 sdata->vif.bss_conf.use_short_slot = true;
1077                 changed |= BSS_CHANGED_ERP_SLOT;
1078         }
1079
1080         if (params->use_short_slot_time >= 0) {
1081                 sdata->vif.bss_conf.use_short_slot =
1082                         params->use_short_slot_time;
1083                 changed |= BSS_CHANGED_ERP_SLOT;
1084         }
1085
1086         if (params->basic_rates) {
1087                 int i, j;
1088                 u32 rates = 0;
1089                 struct ieee80211_local *local = wiphy_priv(wiphy);
1090                 struct ieee80211_supported_band *sband =
1091                         wiphy->bands[local->oper_channel->band];
1092
1093                 for (i = 0; i < params->basic_rates_len; i++) {
1094                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1095                         for (j = 0; j < sband->n_bitrates; j++) {
1096                                 if (sband->bitrates[j].bitrate == rate)
1097                                         rates |= BIT(j);
1098                         }
1099                 }
1100                 sdata->vif.bss_conf.basic_rates = rates;
1101                 changed |= BSS_CHANGED_BASIC_RATES;
1102         }
1103
1104         if (params->ap_isolate >= 0) {
1105                 if (params->ap_isolate)
1106                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1107                 else
1108                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1109         }
1110
1111         ieee80211_bss_info_change_notify(sdata, changed);
1112
1113         return 0;
1114 }
1115
1116 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1117                                     struct ieee80211_txq_params *params)
1118 {
1119         struct ieee80211_local *local = wiphy_priv(wiphy);
1120         struct ieee80211_tx_queue_params p;
1121
1122         if (!local->ops->conf_tx)
1123                 return -EOPNOTSUPP;
1124
1125         memset(&p, 0, sizeof(p));
1126         p.aifs = params->aifs;
1127         p.cw_max = params->cwmax;
1128         p.cw_min = params->cwmin;
1129         p.txop = params->txop;
1130
1131         /*
1132          * Setting tx queue params disables u-apsd because it's only
1133          * called in master mode.
1134          */
1135         p.uapsd = false;
1136
1137         if (drv_conf_tx(local, params->queue, &p)) {
1138                 wiphy_debug(local->hw.wiphy,
1139                             "failed to set TX queue parameters for queue %d\n",
1140                             params->queue);
1141                 return -EINVAL;
1142         }
1143
1144         return 0;
1145 }
1146
1147 static int ieee80211_set_channel(struct wiphy *wiphy,
1148                                  struct net_device *netdev,
1149                                  struct ieee80211_channel *chan,
1150                                  enum nl80211_channel_type channel_type)
1151 {
1152         struct ieee80211_local *local = wiphy_priv(wiphy);
1153         struct ieee80211_sub_if_data *sdata = NULL;
1154
1155         if (netdev)
1156                 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1157
1158         switch (ieee80211_get_channel_mode(local, NULL)) {
1159         case CHAN_MODE_HOPPING:
1160                 return -EBUSY;
1161         case CHAN_MODE_FIXED:
1162                 if (local->oper_channel != chan)
1163                         return -EBUSY;
1164                 if (!sdata && local->_oper_channel_type == channel_type)
1165                         return 0;
1166                 break;
1167         case CHAN_MODE_UNDEFINED:
1168                 break;
1169         }
1170
1171         local->oper_channel = chan;
1172
1173         if (!ieee80211_set_channel_type(local, sdata, channel_type))
1174                 return -EBUSY;
1175
1176         ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1177         if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1178                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1179
1180         return 0;
1181 }
1182
1183 #ifdef CONFIG_PM
1184 static int ieee80211_suspend(struct wiphy *wiphy)
1185 {
1186         return __ieee80211_suspend(wiphy_priv(wiphy));
1187 }
1188
1189 static int ieee80211_resume(struct wiphy *wiphy)
1190 {
1191         return __ieee80211_resume(wiphy_priv(wiphy));
1192 }
1193 #else
1194 #define ieee80211_suspend NULL
1195 #define ieee80211_resume NULL
1196 #endif
1197
1198 static int ieee80211_scan(struct wiphy *wiphy,
1199                           struct net_device *dev,
1200                           struct cfg80211_scan_request *req)
1201 {
1202         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1203
1204         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1205         case NL80211_IFTYPE_STATION:
1206         case NL80211_IFTYPE_ADHOC:
1207         case NL80211_IFTYPE_MESH_POINT:
1208         case NL80211_IFTYPE_P2P_CLIENT:
1209                 break;
1210         case NL80211_IFTYPE_P2P_GO:
1211                 if (sdata->local->ops->hw_scan)
1212                         break;
1213                 /* FIXME: implement NoA while scanning in software */
1214                 return -EOPNOTSUPP;
1215         case NL80211_IFTYPE_AP:
1216                 if (sdata->u.ap.beacon)
1217                         return -EOPNOTSUPP;
1218                 break;
1219         default:
1220                 return -EOPNOTSUPP;
1221         }
1222
1223         return ieee80211_request_scan(sdata, req);
1224 }
1225
1226 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1227                           struct cfg80211_auth_request *req)
1228 {
1229         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1230 }
1231
1232 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1233                            struct cfg80211_assoc_request *req)
1234 {
1235         struct ieee80211_local *local = wiphy_priv(wiphy);
1236         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1237
1238         switch (ieee80211_get_channel_mode(local, sdata)) {
1239         case CHAN_MODE_HOPPING:
1240                 return -EBUSY;
1241         case CHAN_MODE_FIXED:
1242                 if (local->oper_channel == req->bss->channel)
1243                         break;
1244                 return -EBUSY;
1245         case CHAN_MODE_UNDEFINED:
1246                 break;
1247         }
1248
1249         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1250 }
1251
1252 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1253                             struct cfg80211_deauth_request *req,
1254                             void *cookie)
1255 {
1256         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1257                                     req, cookie);
1258 }
1259
1260 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1261                               struct cfg80211_disassoc_request *req,
1262                               void *cookie)
1263 {
1264         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1265                                       req, cookie);
1266 }
1267
1268 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1269                                struct cfg80211_ibss_params *params)
1270 {
1271         struct ieee80211_local *local = wiphy_priv(wiphy);
1272         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1273
1274         switch (ieee80211_get_channel_mode(local, sdata)) {
1275         case CHAN_MODE_HOPPING:
1276                 return -EBUSY;
1277         case CHAN_MODE_FIXED:
1278                 if (!params->channel_fixed)
1279                         return -EBUSY;
1280                 if (local->oper_channel == params->channel)
1281                         break;
1282                 return -EBUSY;
1283         case CHAN_MODE_UNDEFINED:
1284                 break;
1285         }
1286
1287         return ieee80211_ibss_join(sdata, params);
1288 }
1289
1290 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1291 {
1292         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1293
1294         return ieee80211_ibss_leave(sdata);
1295 }
1296
1297 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1298 {
1299         struct ieee80211_local *local = wiphy_priv(wiphy);
1300         int err;
1301
1302         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1303                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1304
1305                 if (err)
1306                         return err;
1307         }
1308
1309         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1310                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1311
1312                 if (err)
1313                         return err;
1314         }
1315
1316         if (changed & WIPHY_PARAM_RETRY_SHORT)
1317                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1318         if (changed & WIPHY_PARAM_RETRY_LONG)
1319                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1320         if (changed &
1321             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1322                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1323
1324         return 0;
1325 }
1326
1327 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1328                                   enum nl80211_tx_power_setting type, int mbm)
1329 {
1330         struct ieee80211_local *local = wiphy_priv(wiphy);
1331         struct ieee80211_channel *chan = local->hw.conf.channel;
1332         u32 changes = 0;
1333
1334         switch (type) {
1335         case NL80211_TX_POWER_AUTOMATIC:
1336                 local->user_power_level = -1;
1337                 break;
1338         case NL80211_TX_POWER_LIMITED:
1339                 if (mbm < 0 || (mbm % 100))
1340                         return -EOPNOTSUPP;
1341                 local->user_power_level = MBM_TO_DBM(mbm);
1342                 break;
1343         case NL80211_TX_POWER_FIXED:
1344                 if (mbm < 0 || (mbm % 100))
1345                         return -EOPNOTSUPP;
1346                 /* TODO: move to cfg80211 when it knows the channel */
1347                 if (MBM_TO_DBM(mbm) > chan->max_power)
1348                         return -EINVAL;
1349                 local->user_power_level = MBM_TO_DBM(mbm);
1350                 break;
1351         }
1352
1353         ieee80211_hw_config(local, changes);
1354
1355         return 0;
1356 }
1357
1358 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1359 {
1360         struct ieee80211_local *local = wiphy_priv(wiphy);
1361
1362         *dbm = local->hw.conf.power_level;
1363
1364         return 0;
1365 }
1366
1367 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1368                                   const u8 *addr)
1369 {
1370         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1371
1372         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1373
1374         return 0;
1375 }
1376
1377 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1378 {
1379         struct ieee80211_local *local = wiphy_priv(wiphy);
1380
1381         drv_rfkill_poll(local);
1382 }
1383
1384 #ifdef CONFIG_NL80211_TESTMODE
1385 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1386 {
1387         struct ieee80211_local *local = wiphy_priv(wiphy);
1388
1389         if (!local->ops->testmode_cmd)
1390                 return -EOPNOTSUPP;
1391
1392         return local->ops->testmode_cmd(&local->hw, data, len);
1393 }
1394 #endif
1395
1396 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1397                              enum ieee80211_smps_mode smps_mode)
1398 {
1399         const u8 *ap;
1400         enum ieee80211_smps_mode old_req;
1401         int err;
1402
1403         old_req = sdata->u.mgd.req_smps;
1404         sdata->u.mgd.req_smps = smps_mode;
1405
1406         if (old_req == smps_mode &&
1407             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1408                 return 0;
1409
1410         /*
1411          * If not associated, or current association is not an HT
1412          * association, there's no need to send an action frame.
1413          */
1414         if (!sdata->u.mgd.associated ||
1415             sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1416                 mutex_lock(&sdata->local->iflist_mtx);
1417                 ieee80211_recalc_smps(sdata->local);
1418                 mutex_unlock(&sdata->local->iflist_mtx);
1419                 return 0;
1420         }
1421
1422         ap = sdata->u.mgd.associated->bssid;
1423
1424         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1425                 if (sdata->u.mgd.powersave)
1426                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1427                 else
1428                         smps_mode = IEEE80211_SMPS_OFF;
1429         }
1430
1431         /* send SM PS frame to AP */
1432         err = ieee80211_send_smps_action(sdata, smps_mode,
1433                                          ap, ap);
1434         if (err)
1435                 sdata->u.mgd.req_smps = old_req;
1436
1437         return err;
1438 }
1439
1440 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1441                                     bool enabled, int timeout)
1442 {
1443         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1444         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1445
1446         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1447                 return -EOPNOTSUPP;
1448
1449         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1450                 return -EOPNOTSUPP;
1451
1452         if (enabled == sdata->u.mgd.powersave &&
1453             timeout == local->dynamic_ps_forced_timeout)
1454                 return 0;
1455
1456         sdata->u.mgd.powersave = enabled;
1457         local->dynamic_ps_forced_timeout = timeout;
1458
1459         /* no change, but if automatic follow powersave */
1460         mutex_lock(&sdata->u.mgd.mtx);
1461         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1462         mutex_unlock(&sdata->u.mgd.mtx);
1463
1464         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1465                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1466
1467         ieee80211_recalc_ps(local, -1);
1468
1469         return 0;
1470 }
1471
1472 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1473                                          struct net_device *dev,
1474                                          s32 rssi_thold, u32 rssi_hyst)
1475 {
1476         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1477         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1478         struct ieee80211_vif *vif = &sdata->vif;
1479         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1480
1481         if (rssi_thold == bss_conf->cqm_rssi_thold &&
1482             rssi_hyst == bss_conf->cqm_rssi_hyst)
1483                 return 0;
1484
1485         bss_conf->cqm_rssi_thold = rssi_thold;
1486         bss_conf->cqm_rssi_hyst = rssi_hyst;
1487
1488         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1489                 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1490                         return -EOPNOTSUPP;
1491                 return 0;
1492         }
1493
1494         /* tell the driver upon association, unless already associated */
1495         if (sdata->u.mgd.associated)
1496                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1497
1498         return 0;
1499 }
1500
1501 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1502                                       struct net_device *dev,
1503                                       const u8 *addr,
1504                                       const struct cfg80211_bitrate_mask *mask)
1505 {
1506         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1507         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1508         int i;
1509
1510         /*
1511          * This _could_ be supported by providing a hook for
1512          * drivers for this function, but at this point it
1513          * doesn't seem worth bothering.
1514          */
1515         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1516                 return -EOPNOTSUPP;
1517
1518
1519         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1520                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1521
1522         return 0;
1523 }
1524
1525 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1526                                        struct net_device *dev,
1527                                        struct ieee80211_channel *chan,
1528                                        enum nl80211_channel_type channel_type,
1529                                        unsigned int duration,
1530                                        u64 *cookie)
1531 {
1532         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1533
1534         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1535                                               duration, cookie);
1536 }
1537
1538 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1539                                               struct net_device *dev,
1540                                               u64 cookie)
1541 {
1542         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1543
1544         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1545 }
1546
1547 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1548                              struct ieee80211_channel *chan,
1549                              enum nl80211_channel_type channel_type,
1550                              bool channel_type_valid,
1551                              const u8 *buf, size_t len, u64 *cookie)
1552 {
1553         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1554         struct ieee80211_local *local = sdata->local;
1555         struct sk_buff *skb;
1556         struct sta_info *sta;
1557         const struct ieee80211_mgmt *mgmt = (void *)buf;
1558         u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1559                     IEEE80211_TX_CTL_REQ_TX_STATUS;
1560
1561         /* Check that we are on the requested channel for transmission */
1562         if (chan != local->tmp_channel &&
1563             chan != local->oper_channel)
1564                 return -EBUSY;
1565         if (channel_type_valid &&
1566             (channel_type != local->tmp_channel_type &&
1567              channel_type != local->_oper_channel_type))
1568                 return -EBUSY;
1569
1570         switch (sdata->vif.type) {
1571         case NL80211_IFTYPE_ADHOC:
1572         case NL80211_IFTYPE_AP:
1573         case NL80211_IFTYPE_AP_VLAN:
1574         case NL80211_IFTYPE_P2P_GO:
1575                 if (!ieee80211_is_action(mgmt->frame_control) ||
1576                     mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1577                         break;
1578                 rcu_read_lock();
1579                 sta = sta_info_get(sdata, mgmt->da);
1580                 rcu_read_unlock();
1581                 if (!sta)
1582                         return -ENOLINK;
1583                 break;
1584         case NL80211_IFTYPE_STATION:
1585         case NL80211_IFTYPE_P2P_CLIENT:
1586                 break;
1587         default:
1588                 return -EOPNOTSUPP;
1589         }
1590
1591         skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1592         if (!skb)
1593                 return -ENOMEM;
1594         skb_reserve(skb, local->hw.extra_tx_headroom);
1595
1596         memcpy(skb_put(skb, len), buf, len);
1597
1598         IEEE80211_SKB_CB(skb)->flags = flags;
1599
1600         skb->dev = sdata->dev;
1601         ieee80211_tx_skb(sdata, skb);
1602
1603         *cookie = (unsigned long) skb;
1604         return 0;
1605 }
1606
1607 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
1608                                           struct net_device *dev,
1609                                           u16 frame_type, bool reg)
1610 {
1611         struct ieee80211_local *local = wiphy_priv(wiphy);
1612
1613         if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
1614                 return;
1615
1616         if (reg)
1617                 local->probe_req_reg++;
1618         else
1619                 local->probe_req_reg--;
1620
1621         ieee80211_queue_work(&local->hw, &local->reconfig_filter);
1622 }
1623
1624 struct cfg80211_ops mac80211_config_ops = {
1625         .add_virtual_intf = ieee80211_add_iface,
1626         .del_virtual_intf = ieee80211_del_iface,
1627         .change_virtual_intf = ieee80211_change_iface,
1628         .add_key = ieee80211_add_key,
1629         .del_key = ieee80211_del_key,
1630         .get_key = ieee80211_get_key,
1631         .set_default_key = ieee80211_config_default_key,
1632         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1633         .add_beacon = ieee80211_add_beacon,
1634         .set_beacon = ieee80211_set_beacon,
1635         .del_beacon = ieee80211_del_beacon,
1636         .add_station = ieee80211_add_station,
1637         .del_station = ieee80211_del_station,
1638         .change_station = ieee80211_change_station,
1639         .get_station = ieee80211_get_station,
1640         .dump_station = ieee80211_dump_station,
1641         .dump_survey = ieee80211_dump_survey,
1642 #ifdef CONFIG_MAC80211_MESH
1643         .add_mpath = ieee80211_add_mpath,
1644         .del_mpath = ieee80211_del_mpath,
1645         .change_mpath = ieee80211_change_mpath,
1646         .get_mpath = ieee80211_get_mpath,
1647         .dump_mpath = ieee80211_dump_mpath,
1648         .set_mesh_params = ieee80211_set_mesh_params,
1649         .get_mesh_params = ieee80211_get_mesh_params,
1650 #endif
1651         .change_bss = ieee80211_change_bss,
1652         .set_txq_params = ieee80211_set_txq_params,
1653         .set_channel = ieee80211_set_channel,
1654         .suspend = ieee80211_suspend,
1655         .resume = ieee80211_resume,
1656         .scan = ieee80211_scan,
1657         .auth = ieee80211_auth,
1658         .assoc = ieee80211_assoc,
1659         .deauth = ieee80211_deauth,
1660         .disassoc = ieee80211_disassoc,
1661         .join_ibss = ieee80211_join_ibss,
1662         .leave_ibss = ieee80211_leave_ibss,
1663         .set_wiphy_params = ieee80211_set_wiphy_params,
1664         .set_tx_power = ieee80211_set_tx_power,
1665         .get_tx_power = ieee80211_get_tx_power,
1666         .set_wds_peer = ieee80211_set_wds_peer,
1667         .rfkill_poll = ieee80211_rfkill_poll,
1668         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1669         .set_power_mgmt = ieee80211_set_power_mgmt,
1670         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1671         .remain_on_channel = ieee80211_remain_on_channel,
1672         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1673         .mgmt_tx = ieee80211_mgmt_tx,
1674         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1675         .mgmt_frame_register = ieee80211_mgmt_frame_register,
1676 };