SAFE public projects git trees. - safe/jmp/linux-2.6/blob - net/mac80211/cfg.c

   1 /*
   2  * mac80211 configuration hooks for cfg80211
   3  *
   4  * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
   5  *
   6  * This file is GPLv2 as found in COPYING.
   7  */
   8
   9 #include <linux/ieee80211.h>
  10 #include <linux/nl80211.h>
  11 #include <linux/rtnetlink.h>
  12 #include <net/net_namespace.h>
  13 #include <linux/rcupdate.h>
  14 #include <net/cfg80211.h>
  15 #include "ieee80211_i.h"
  16 #include "driver-ops.h"
  17 #include "cfg.h"
  18 #include "rate.h"
  19 #include "mesh.h"
  20
  21 static bool nl80211_type_check(enum nl80211_iftype type)
  22 {
  23         switch (type) {
  24         case NL80211_IFTYPE_ADHOC:
  25         case NL80211_IFTYPE_STATION:
  26         case NL80211_IFTYPE_MONITOR:
  27 #ifdef CONFIG_MAC80211_MESH
  28         case NL80211_IFTYPE_MESH_POINT:
  29 #endif
  30         case NL80211_IFTYPE_AP:
  31         case NL80211_IFTYPE_AP_VLAN:
  32         case NL80211_IFTYPE_WDS:
  33                 return true;
  34         default:
  35                 return false;
  36         }
  37 }
  38
  39 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
  40                                enum nl80211_iftype type, u32 *flags,
  41                                struct vif_params *params)
  42 {
  43         struct ieee80211_local *local = wiphy_priv(wiphy);
  44         struct net_device *dev;
  45         struct ieee80211_sub_if_data *sdata;
  46         int err;
  47
  48         if (!nl80211_type_check(type))
  49                 return -EINVAL;
  50
  51         err = ieee80211_if_add(local, name, &dev, type, params);
  52         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
  53                 return err;
  54
  55         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  56         sdata->u.mntr_flags = *flags;
  57         return 0;
  58 }
  59
  60 static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
  61 {
  62         struct net_device *dev;
  63         struct ieee80211_sub_if_data *sdata;
  64
  65         /* we're under RTNL */
  66         dev = __dev_get_by_index(&init_net, ifindex);
  67         if (!dev)
  68                 return -ENODEV;
  69
  70         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  71
  72         ieee80211_if_remove(sdata);
  73
  74         return 0;
  75 }
  76
  77 static int ieee80211_change_iface(struct wiphy *wiphy,
  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;
  83         int ret;
  84
  85         if (!nl80211_type_check(type))
  86                 return -EINVAL;
  87
  88         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  89
  90         ret = ieee80211_if_change_type(sdata, type);
  91         if (ret)
  92                 return ret;
  93
  94         if (netif_running(sdata->dev))
  95                 return -EBUSY;
  96
  97         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
  98                 ieee80211_sdata_set_mesh_id(sdata,
  99                                             params->mesh_id_len,
 100                                             params->mesh_id);
 101
 102         if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
 103                 return 0;
 104
 105         sdata->u.mntr_flags = *flags;
 106         return 0;
 107 }
 108
 109 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 110                              u8 key_idx, const u8 *mac_addr,
 111                              struct key_params *params)
 112 {
 113         struct ieee80211_sub_if_data *sdata;
 114         struct sta_info *sta = NULL;
 115         enum ieee80211_key_alg alg;
 116         struct ieee80211_key *key;
 117         int err;
 118
 119         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 120
 121         switch (params->cipher) {
 122         case WLAN_CIPHER_SUITE_WEP40:
 123         case WLAN_CIPHER_SUITE_WEP104:
 124                 alg = ALG_WEP;
 125                 break;
 126         case WLAN_CIPHER_SUITE_TKIP:
 127                 alg = ALG_TKIP;
 128                 break;
 129         case WLAN_CIPHER_SUITE_CCMP:
 130                 alg = ALG_CCMP;
 131                 break;
 132         case WLAN_CIPHER_SUITE_AES_CMAC:
 133                 alg = ALG_AES_CMAC;
 134                 break;
 135         default:
 136                 return -EINVAL;
 137         }
 138
 139         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
 140                                   params->seq_len, params->seq);
 141         if (!key)
 142                 return -ENOMEM;
 143
 144         rcu_read_lock();
 145
 146         if (mac_addr) {
 147                 sta = sta_info_get(sdata->local, mac_addr);
 148                 if (!sta) {
 149                         ieee80211_key_free(key);
 150                         err = -ENOENT;
 151                         goto out_unlock;
 152                 }
 153         }
 154
 155         ieee80211_key_link(key, sdata, sta);
 156
 157         err = 0;
 158  out_unlock:
 159         rcu_read_unlock();
 160
 161         return err;
 162 }
 163
 164 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 165                              u8 key_idx, const u8 *mac_addr)
 166 {
 167         struct ieee80211_sub_if_data *sdata;
 168         struct sta_info *sta;
 169         int ret;
 170
 171         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 172
 173         rcu_read_lock();
 174
 175         if (mac_addr) {
 176                 ret = -ENOENT;
 177
 178                 sta = sta_info_get(sdata->local, mac_addr);
 179                 if (!sta)
 180                         goto out_unlock;
 181
 182                 if (sta->key) {
 183                         ieee80211_key_free(sta->key);
 184                         WARN_ON(sta->key);
 185                         ret = 0;
 186                 }
 187
 188                 goto out_unlock;
 189         }
 190
 191         if (!sdata->keys[key_idx]) {
 192                 ret = -ENOENT;
 193                 goto out_unlock;
 194         }
 195
 196         ieee80211_key_free(sdata->keys[key_idx]);
 197         WARN_ON(sdata->keys[key_idx]);
 198
 199         ret = 0;
 200  out_unlock:
 201         rcu_read_unlock();
 202
 203         return ret;
 204 }
 205
 206 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 207                              u8 key_idx, const u8 *mac_addr, void *cookie,
 208                              void (*callback)(void *cookie,
 209                                               struct key_params *params))
 210 {
 211         struct ieee80211_sub_if_data *sdata;
 212         struct sta_info *sta = NULL;
 213         u8 seq[6] = {0};
 214         struct key_params params;
 215         struct ieee80211_key *key;
 216         u32 iv32;
 217         u16 iv16;
 218         int err = -ENOENT;
 219
 220         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 221
 222         rcu_read_lock();
 223
 224         if (mac_addr) {
 225                 sta = sta_info_get(sdata->local, mac_addr);
 226                 if (!sta)
 227                         goto out;
 228
 229                 key = sta->key;
 230         } else
 231                 key = sdata->keys[key_idx];
 232
 233         if (!key)
 234                 goto out;
 235
 236         memset(&params, 0, sizeof(params));
 237
 238         switch (key->conf.alg) {
 239         case ALG_TKIP:
 240                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
 241
 242                 iv32 = key->u.tkip.tx.iv32;
 243                 iv16 = key->u.tkip.tx.iv16;
 244
 245                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 246                         drv_get_tkip_seq(sdata->local,
 247                                          key->conf.hw_key_idx,
 248                                          &iv32, &iv16);
 249
 250                 seq[0] = iv16 & 0xff;
 251                 seq[1] = (iv16 >> 8) & 0xff;
 252                 seq[2] = iv32 & 0xff;
 253                 seq[3] = (iv32 >> 8) & 0xff;
 254                 seq[4] = (iv32 >> 16) & 0xff;
 255                 seq[5] = (iv32 >> 24) & 0xff;
 256                 params.seq = seq;
 257                 params.seq_len = 6;
 258                 break;
 259         case ALG_CCMP:
 260                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
 261                 seq[0] = key->u.ccmp.tx_pn[5];
 262                 seq[1] = key->u.ccmp.tx_pn[4];
 263                 seq[2] = key->u.ccmp.tx_pn[3];
 264                 seq[3] = key->u.ccmp.tx_pn[2];
 265                 seq[4] = key->u.ccmp.tx_pn[1];
 266                 seq[5] = key->u.ccmp.tx_pn[0];
 267                 params.seq = seq;
 268                 params.seq_len = 6;
 269                 break;
 270         case ALG_WEP:
 271                 if (key->conf.keylen == 5)
 272                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
 273                 else
 274                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
 275                 break;
 276         case ALG_AES_CMAC:
 277                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
 278                 seq[0] = key->u.aes_cmac.tx_pn[5];
 279                 seq[1] = key->u.aes_cmac.tx_pn[4];
 280                 seq[2] = key->u.aes_cmac.tx_pn[3];
 281                 seq[3] = key->u.aes_cmac.tx_pn[2];
 282                 seq[4] = key->u.aes_cmac.tx_pn[1];
 283                 seq[5] = key->u.aes_cmac.tx_pn[0];
 284                 params.seq = seq;
 285                 params.seq_len = 6;
 286                 break;
 287         }
 288
 289         params.key = key->conf.key;
 290         params.key_len = key->conf.keylen;
 291
 292         callback(cookie, &params);
 293         err = 0;
 294
 295  out:
 296         rcu_read_unlock();
 297         return err;
 298 }
 299
 300 static int ieee80211_config_default_key(struct wiphy *wiphy,
 301                                         struct net_device *dev,
 302                                         u8 key_idx)
 303 {
 304         struct ieee80211_sub_if_data *sdata;
 305
 306         rcu_read_lock();
 307
 308         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 309         ieee80211_set_default_key(sdata, key_idx);
 310
 311         rcu_read_unlock();
 312
 313         return 0;
 314 }
 315
 316 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 317                                              struct net_device *dev,
 318                                              u8 key_idx)
 319 {
 320         struct ieee80211_sub_if_data *sdata;
 321
 322         rcu_read_lock();
 323
 324         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 325         ieee80211_set_default_mgmt_key(sdata, key_idx);
 326
 327         rcu_read_unlock();
 328
 329         return 0;
 330 }
 331
 332 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 333 {
 334         struct ieee80211_sub_if_data *sdata = sta->sdata;
 335
 336         sinfo->filled = STATION_INFO_INACTIVE_TIME |
 337                         STATION_INFO_RX_BYTES |
 338                         STATION_INFO_TX_BYTES |
 339                         STATION_INFO_RX_PACKETS |
 340                         STATION_INFO_TX_PACKETS |
 341                         STATION_INFO_TX_BITRATE;
 342
 343         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 344         sinfo->rx_bytes = sta->rx_bytes;
 345         sinfo->tx_bytes = sta->tx_bytes;
 346         sinfo->rx_packets = sta->rx_packets;
 347         sinfo->tx_packets = sta->tx_packets;
 348
 349         if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
 350                 sinfo->filled |= STATION_INFO_SIGNAL;
 351                 sinfo->signal = (s8)sta->last_signal;
 352         }
 353
 354         sinfo->txrate.flags = 0;
 355         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
 356                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
 357         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 358                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 359         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
 360                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 361
 362         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
 363                 struct ieee80211_supported_band *sband;
 364                 sband = sta->local->hw.wiphy->bands[
 365                                 sta->local->hw.conf.channel->band];
 366                 sinfo->txrate.legacy =
 367                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
 368         } else
 369                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
 370
 371         if (ieee80211_vif_is_mesh(&sdata->vif)) {
 372 #ifdef CONFIG_MAC80211_MESH
 373                 sinfo->filled |= STATION_INFO_LLID |
 374                                  STATION_INFO_PLID |
 375                                  STATION_INFO_PLINK_STATE;
 376
 377                 sinfo->llid = le16_to_cpu(sta->llid);
 378                 sinfo->plid = le16_to_cpu(sta->plid);
 379                 sinfo->plink_state = sta->plink_state;
 380 #endif
 381         }
 382 }
 383
 384
 385 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 386                                  int idx, u8 *mac, struct station_info *sinfo)
 387 {
 388         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 389         struct sta_info *sta;
 390         int ret = -ENOENT;
 391
 392         rcu_read_lock();
 393
 394         sta = sta_info_get_by_idx(local, idx, dev);
 395         if (sta) {
 396                 ret = 0;
 397                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 398                 sta_set_sinfo(sta, sinfo);
 399         }
 400
 401         rcu_read_unlock();
 402
 403         return ret;
 404 }
 405
 406 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 407                                  u8 *mac, struct station_info *sinfo)
 408 {
 409         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 410         struct sta_info *sta;
 411         int ret = -ENOENT;
 412
 413         rcu_read_lock();
 414
 415         /* XXX: verify sta->dev == dev */
 416
 417         sta = sta_info_get(local, mac);
 418         if (sta) {
 419                 ret = 0;
 420                 sta_set_sinfo(sta, sinfo);
 421         }
 422
 423         rcu_read_unlock();
 424
 425         return ret;
 426 }
 427
 428 /*
 429  * This handles both adding a beacon and setting new beacon info
 430  */
 431 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
 432                                    struct beacon_parameters *params)
 433 {
 434         struct beacon_data *new, *old;
 435         int new_head_len, new_tail_len;
 436         int size;
 437         int err = -EINVAL;
 438
 439         old = sdata->u.ap.beacon;
 440
 441         /* head must not be zero-length */
 442         if (params->head && !params->head_len)
 443                 return -EINVAL;
 444
 445         /*
 446          * This is a kludge. beacon interval should really be part
 447          * of the beacon information.
 448          */
 449         if (params->interval &&
 450             (sdata->vif.bss_conf.beacon_int != params->interval)) {
 451                 sdata->vif.bss_conf.beacon_int = params->interval;
 452                 ieee80211_bss_info_change_notify(sdata,
 453                                                  BSS_CHANGED_BEACON_INT);
 454         }
 455
 456         /* Need to have a beacon head if we don't have one yet */
 457         if (!params->head && !old)
 458                 return err;
 459
 460         /* sorry, no way to start beaconing without dtim period */
 461         if (!params->dtim_period && !old)
 462                 return err;
 463
 464         /* new or old head? */
 465         if (params->head)
 466                 new_head_len = params->head_len;
 467         else
 468                 new_head_len = old->head_len;
 469
 470         /* new or old tail? */
 471         if (params->tail || !old)
 472                 /* params->tail_len will be zero for !params->tail */
 473                 new_tail_len = params->tail_len;
 474         else
 475                 new_tail_len = old->tail_len;
 476
 477         size = sizeof(*new) + new_head_len + new_tail_len;
 478
 479         new = kzalloc(size, GFP_KERNEL);
 480         if (!new)
 481                 return -ENOMEM;
 482
 483         /* start filling the new info now */
 484
 485         /* new or old dtim period? */
 486         if (params->dtim_period)
 487                 new->dtim_period = params->dtim_period;
 488         else
 489                 new->dtim_period = old->dtim_period;
 490
 491         /*
 492          * pointers go into the block we allocated,
 493          * memory is | beacon_data | head | tail |
 494          */
 495         new->head = ((u8 *) new) + sizeof(*new);
 496         new->tail = new->head + new_head_len;
 497         new->head_len = new_head_len;
 498         new->tail_len = new_tail_len;
 499
 500         /* copy in head */
 501         if (params->head)
 502                 memcpy(new->head, params->head, new_head_len);
 503         else
 504                 memcpy(new->head, old->head, new_head_len);
 505
 506         /* copy in optional tail */
 507         if (params->tail)
 508                 memcpy(new->tail, params->tail, new_tail_len);
 509         else
 510                 if (old)
 511                         memcpy(new->tail, old->tail, new_tail_len);
 512
 513         rcu_assign_pointer(sdata->u.ap.beacon, new);
 514
 515         synchronize_rcu();
 516
 517         kfree(old);
 518
 519         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 520                                                 BSS_CHANGED_BEACON);
 521         return 0;
 522 }
 523
 524 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
 525                                 struct beacon_parameters *params)
 526 {
 527         struct ieee80211_sub_if_data *sdata;
 528         struct beacon_data *old;
 529
 530         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 531
 532         old = sdata->u.ap.beacon;
 533
 534         if (old)
 535                 return -EALREADY;
 536
 537         return ieee80211_config_beacon(sdata, params);
 538 }
 539
 540 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
 541                                 struct beacon_parameters *params)
 542 {
 543         struct ieee80211_sub_if_data *sdata;
 544         struct beacon_data *old;
 545
 546         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 547
 548         old = sdata->u.ap.beacon;
 549
 550         if (!old)
 551                 return -ENOENT;
 552
 553         return ieee80211_config_beacon(sdata, params);
 554 }
 555
 556 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
 557 {
 558         struct ieee80211_sub_if_data *sdata;
 559         struct beacon_data *old;
 560
 561         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 562
 563         old = sdata->u.ap.beacon;
 564
 565         if (!old)
 566                 return -ENOENT;
 567
 568         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
 569         synchronize_rcu();
 570         kfree(old);
 571
 572         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 573         return 0;
 574 }
 575
 576 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 577 struct iapp_layer2_update {
 578         u8 da[ETH_ALEN];        /* broadcast */
 579         u8 sa[ETH_ALEN];        /* STA addr */
 580         __be16 len;             /* 6 */
 581         u8 dsap;                /* 0 */
 582         u8 ssap;                /* 0 */
 583         u8 control;
 584         u8 xid_info[3];
 585 } __attribute__ ((packed));
 586
 587 static void ieee80211_send_layer2_update(struct sta_info *sta)
 588 {
 589         struct iapp_layer2_update *msg;
 590         struct sk_buff *skb;
 591
 592         /* Send Level 2 Update Frame to update forwarding tables in layer 2
 593          * bridge devices */
 594
 595         skb = dev_alloc_skb(sizeof(*msg));
 596         if (!skb)
 597                 return;
 598         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 599
 600         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 601          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 602
 603         memset(msg->da, 0xff, ETH_ALEN);
 604         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 605         msg->len = htons(6);
 606         msg->dsap = 0;
 607         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
 608         msg->control = 0xaf;    /* XID response lsb.1111F101.
 609                                  * F=0 (no poll command; unsolicited frame) */
 610         msg->xid_info[0] = 0x81;        /* XID format identifier */
 611         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
 612         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
 613
 614         skb->dev = sta->sdata->dev;
 615         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
 616         memset(skb->cb, 0, sizeof(skb->cb));
 617         netif_rx(skb);
 618 }
 619
 620 static void sta_apply_parameters(struct ieee80211_local *local,
 621                                  struct sta_info *sta,
 622                                  struct station_parameters *params)
 623 {
 624         u32 rates;
 625         int i, j;
 626         struct ieee80211_supported_band *sband;
 627         struct ieee80211_sub_if_data *sdata = sta->sdata;
 628         u32 mask, set;
 629
 630         sband = local->hw.wiphy->bands[local->oper_channel->band];
 631
 632         spin_lock_bh(&sta->lock);
 633         mask = params->sta_flags_mask;
 634         set = params->sta_flags_set;
 635
 636         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 637                 sta->flags &= ~WLAN_STA_AUTHORIZED;
 638                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
 639                         sta->flags |= WLAN_STA_AUTHORIZED;
 640         }
 641
 642         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
 643                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
 644                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
 645                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
 646         }
 647
 648         if (mask & BIT(NL80211_STA_FLAG_WME)) {
 649                 sta->flags &= ~WLAN_STA_WME;
 650                 if (set & BIT(NL80211_STA_FLAG_WME))
 651                         sta->flags |= WLAN_STA_WME;
 652         }
 653
 654         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
 655                 sta->flags &= ~WLAN_STA_MFP;
 656                 if (set & BIT(NL80211_STA_FLAG_MFP))
 657                         sta->flags |= WLAN_STA_MFP;
 658         }
 659         spin_unlock_bh(&sta->lock);
 660
 661         /*
 662          * cfg80211 validates this (1-2007) and allows setting the AID
 663          * only when creating a new station entry
 664          */
 665         if (params->aid)
 666                 sta->sta.aid = params->aid;
 667
 668         /*
 669          * FIXME: updating the following information is racy when this
 670          *        function is called from ieee80211_change_station().
 671          *        However, all this information should be static so
 672          *        maybe we should just reject attemps to change it.
 673          */
 674
 675         if (params->listen_interval >= 0)
 676                 sta->listen_interval = params->listen_interval;
 677
 678         if (params->supported_rates) {
 679                 rates = 0;
 680
 681                 for (i = 0; i < params->supported_rates_len; i++) {
 682                         int rate = (params->supported_rates[i] & 0x7f) * 5;
 683                         for (j = 0; j < sband->n_bitrates; j++) {
 684                                 if (sband->bitrates[j].bitrate == rate)
 685                                         rates |= BIT(j);
 686                         }
 687                 }
 688                 sta->sta.supp_rates[local->oper_channel->band] = rates;
 689         }
 690
 691         if (params->ht_capa)
 692                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
 693                                                   params->ht_capa,
 694                                                   &sta->sta.ht_cap);
 695
 696         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
 697                 switch (params->plink_action) {
 698                 case PLINK_ACTION_OPEN:
 699                         mesh_plink_open(sta);
 700                         break;
 701                 case PLINK_ACTION_BLOCK:
 702                         mesh_plink_block(sta);
 703                         break;
 704                 }
 705         }
 706 }
 707
 708 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
 709                                  u8 *mac, struct station_parameters *params)
 710 {
 711         struct ieee80211_local *local = wiphy_priv(wiphy);
 712         struct sta_info *sta;
 713         struct ieee80211_sub_if_data *sdata;
 714         int err;
 715         int layer2_update;
 716
 717         if (params->vlan) {
 718                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 719
 720                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 721                     sdata->vif.type != NL80211_IFTYPE_AP)
 722                         return -EINVAL;
 723         } else
 724                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 725
 726         if (compare_ether_addr(mac, dev->dev_addr) == 0)
 727                 return -EINVAL;
 728
 729         if (is_multicast_ether_addr(mac))
 730                 return -EINVAL;
 731
 732         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
 733         if (!sta)
 734                 return -ENOMEM;
 735
 736         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
 737
 738         sta_apply_parameters(local, sta, params);
 739
 740         rate_control_rate_init(sta);
 741
 742         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 743                 sdata->vif.type == NL80211_IFTYPE_AP;
 744
 745         rcu_read_lock();
 746
 747         err = sta_info_insert(sta);
 748         if (err) {
 749                 /* STA has been freed */
 750                 if (err == -EEXIST && layer2_update) {
 751                         /* Need to update layer 2 devices on reassociation */
 752                         sta = sta_info_get(local, mac);
 753                         if (sta)
 754                                 ieee80211_send_layer2_update(sta);
 755                 }
 756                 rcu_read_unlock();
 757                 return err;
 758         }
 759
 760         if (layer2_update)
 761                 ieee80211_send_layer2_update(sta);
 762
 763         rcu_read_unlock();
 764
 765         return 0;
 766 }
 767
 768 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
 769                                  u8 *mac)
 770 {
 771         struct ieee80211_local *local = wiphy_priv(wiphy);
 772         struct ieee80211_sub_if_data *sdata;
 773         struct sta_info *sta;
 774
 775         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 776
 777         if (mac) {
 778                 rcu_read_lock();
 779
 780                 /* XXX: get sta belonging to dev */
 781                 sta = sta_info_get(local, mac);
 782                 if (!sta) {
 783                         rcu_read_unlock();
 784                         return -ENOENT;
 785                 }
 786
 787                 sta_info_unlink(&sta);
 788                 rcu_read_unlock();
 789
 790                 sta_info_destroy(sta);
 791         } else
 792                 sta_info_flush(local, sdata);
 793
 794         return 0;
 795 }
 796
 797 static int ieee80211_change_station(struct wiphy *wiphy,
 798                                     struct net_device *dev,
 799                                     u8 *mac,
 800                                     struct station_parameters *params)
 801 {
 802         struct ieee80211_local *local = wiphy_priv(wiphy);
 803         struct sta_info *sta;
 804         struct ieee80211_sub_if_data *vlansdata;
 805
 806         rcu_read_lock();
 807
 808         /* XXX: get sta belonging to dev */
 809         sta = sta_info_get(local, mac);
 810         if (!sta) {
 811                 rcu_read_unlock();
 812                 return -ENOENT;
 813         }
 814
 815         if (params->vlan && params->vlan != sta->sdata->dev) {
 816                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
 817
 818                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
 819                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
 820                         rcu_read_unlock();
 821                         return -EINVAL;
 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_local *local = wiphy_priv(wiphy);
 840         struct ieee80211_sub_if_data *sdata;
 841         struct mesh_path *mpath;
 842         struct sta_info *sta;
 843         int err;
 844
 845         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 846
 847         rcu_read_lock();
 848         sta = sta_info_get(local, next_hop);
 849         if (!sta) {
 850                 rcu_read_unlock();
 851                 return -ENOENT;
 852         }
 853
 854         err = mesh_path_add(dst, sdata);
 855         if (err) {
 856                 rcu_read_unlock();
 857                 return err;
 858         }
 859
 860         mpath = mesh_path_lookup(dst, sdata);
 861         if (!mpath) {
 862                 rcu_read_unlock();
 863                 return -ENXIO;
 864         }
 865         mesh_path_fix_nexthop(mpath, sta);
 866
 867         rcu_read_unlock();
 868         return 0;
 869 }
 870
 871 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
 872                                  u8 *dst)
 873 {
 874         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 875
 876         if (dst)
 877                 return mesh_path_del(dst, sdata);
 878
 879         mesh_path_flush(sdata);
 880         return 0;
 881 }
 882
 883 static int ieee80211_change_mpath(struct wiphy *wiphy,
 884                                     struct net_device *dev,
 885                                     u8 *dst, u8 *next_hop)
 886 {
 887         struct ieee80211_local *local = wiphy_priv(wiphy);
 888         struct ieee80211_sub_if_data *sdata;
 889         struct mesh_path *mpath;
 890         struct sta_info *sta;
 891
 892         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 893
 894         rcu_read_lock();
 895
 896         sta = sta_info_get(local, next_hop);
 897         if (!sta) {
 898                 rcu_read_unlock();
 899                 return -ENOENT;
 900         }
 901
 902         mpath = mesh_path_lookup(dst, sdata);
 903         if (!mpath) {
 904                 rcu_read_unlock();
 905                 return -ENOENT;
 906         }
 907
 908         mesh_path_fix_nexthop(mpath, sta);
 909
 910         rcu_read_unlock();
 911         return 0;
 912 }
 913
 914 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
 915                             struct mpath_info *pinfo)
 916 {
 917         if (mpath->next_hop)
 918                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
 919         else
 920                 memset(next_hop, 0, ETH_ALEN);
 921
 922         pinfo->filled = MPATH_INFO_FRAME_QLEN |
 923                         MPATH_INFO_DSN |
 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->dsn = mpath->dsn;
 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_DSN_VALID)
 944                 pinfo->flags |= NL80211_MPATH_FLAG_DSN_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         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1018
1019         /* Set the config options which we are interested in setting */
1020         conf = &(sdata->u.mesh.mshcfg);
1021         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1022                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1023         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1024                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1025         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1026                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1027         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1028                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1029         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1030                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1031         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1032                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1033         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1034                 conf->auto_open_plinks = nconf->auto_open_plinks;
1035         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1036                 conf->dot11MeshHWMPmaxPREQretries =
1037                         nconf->dot11MeshHWMPmaxPREQretries;
1038         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1039                 conf->path_refresh_time = nconf->path_refresh_time;
1040         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1041                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1042         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1043                 conf->dot11MeshHWMPactivePathTimeout =
1044                         nconf->dot11MeshHWMPactivePathTimeout;
1045         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1046                 conf->dot11MeshHWMPpreqMinInterval =
1047                         nconf->dot11MeshHWMPpreqMinInterval;
1048         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1049                            mask))
1050                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1051                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1052         return 0;
1053 }
1054
1055 #endif
1056
1057 static int ieee80211_change_bss(struct wiphy *wiphy,
1058                                 struct net_device *dev,
1059                                 struct bss_parameters *params)
1060 {
1061         struct ieee80211_sub_if_data *sdata;
1062         u32 changed = 0;
1063
1064         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1065
1066         if (params->use_cts_prot >= 0) {
1067                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1068                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1069         }
1070         if (params->use_short_preamble >= 0) {
1071                 sdata->vif.bss_conf.use_short_preamble =
1072                         params->use_short_preamble;
1073                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1074         }
1075         if (params->use_short_slot_time >= 0) {
1076                 sdata->vif.bss_conf.use_short_slot =
1077                         params->use_short_slot_time;
1078                 changed |= BSS_CHANGED_ERP_SLOT;
1079         }
1080
1081         if (params->basic_rates) {
1082                 int i, j;
1083                 u32 rates = 0;
1084                 struct ieee80211_local *local = wiphy_priv(wiphy);
1085                 struct ieee80211_supported_band *sband =
1086                         wiphy->bands[local->oper_channel->band];
1087
1088                 for (i = 0; i < params->basic_rates_len; i++) {
1089                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1090                         for (j = 0; j < sband->n_bitrates; j++) {
1091                                 if (sband->bitrates[j].bitrate == rate)
1092                                         rates |= BIT(j);
1093                         }
1094                 }
1095                 sdata->vif.bss_conf.basic_rates = rates;
1096                 changed |= BSS_CHANGED_BASIC_RATES;
1097         }
1098
1099         ieee80211_bss_info_change_notify(sdata, changed);
1100
1101         return 0;
1102 }
1103
1104 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1105                                     struct ieee80211_txq_params *params)
1106 {
1107         struct ieee80211_local *local = wiphy_priv(wiphy);
1108         struct ieee80211_tx_queue_params p;
1109
1110         if (!local->ops->conf_tx)
1111                 return -EOPNOTSUPP;
1112
1113         memset(&p, 0, sizeof(p));
1114         p.aifs = params->aifs;
1115         p.cw_max = params->cwmax;
1116         p.cw_min = params->cwmin;
1117         p.txop = params->txop;
1118         if (drv_conf_tx(local, params->queue, &p)) {
1119                 printk(KERN_DEBUG "%s: failed to set TX queue "
1120                        "parameters for queue %d\n",
1121                        wiphy_name(local->hw.wiphy), params->queue);
1122                 return -EINVAL;
1123         }
1124
1125         return 0;
1126 }
1127
1128 static int ieee80211_set_channel(struct wiphy *wiphy,
1129                                  struct ieee80211_channel *chan,
1130                                  enum nl80211_channel_type channel_type)
1131 {
1132         struct ieee80211_local *local = wiphy_priv(wiphy);
1133
1134         local->oper_channel = chan;
1135         local->oper_channel_type = channel_type;
1136
1137         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1138 }
1139
1140 #ifdef CONFIG_PM
1141 static int ieee80211_suspend(struct wiphy *wiphy)
1142 {
1143         return __ieee80211_suspend(wiphy_priv(wiphy));
1144 }
1145
1146 static int ieee80211_resume(struct wiphy *wiphy)
1147 {
1148         return __ieee80211_resume(wiphy_priv(wiphy));
1149 }
1150 #else
1151 #define ieee80211_suspend NULL
1152 #define ieee80211_resume NULL
1153 #endif
1154
1155 static int ieee80211_scan(struct wiphy *wiphy,
1156                           struct net_device *dev,
1157                           struct cfg80211_scan_request *req)
1158 {
1159         struct ieee80211_sub_if_data *sdata;
1160
1161         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1162
1163         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1164             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1165             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1166             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1167                 return -EOPNOTSUPP;
1168
1169         return ieee80211_request_scan(sdata, req);
1170 }
1171
1172 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1173                           struct cfg80211_auth_request *req)
1174 {
1175         struct ieee80211_sub_if_data *sdata;
1176         const u8 *ssid;
1177
1178         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1179
1180         switch (req->auth_type) {
1181         case NL80211_AUTHTYPE_OPEN_SYSTEM:
1182                 sdata->u.mgd.auth_alg = WLAN_AUTH_OPEN;
1183                 break;
1184         case NL80211_AUTHTYPE_SHARED_KEY:
1185                 sdata->u.mgd.auth_alg = WLAN_AUTH_SHARED_KEY;
1186                 break;
1187         case NL80211_AUTHTYPE_FT:
1188                 sdata->u.mgd.auth_alg = WLAN_AUTH_FT;
1189                 break;
1190         case NL80211_AUTHTYPE_NETWORK_EAP:
1191                 sdata->u.mgd.auth_alg = WLAN_AUTH_LEAP;
1192                 break;
1193         default:
1194                 return -EOPNOTSUPP;
1195         }
1196
1197         memcpy(sdata->u.mgd.bssid, req->bss->bssid, ETH_ALEN);
1198
1199         sdata->local->oper_channel = req->bss->channel;
1200         ieee80211_hw_config(sdata->local, 0);
1201
1202         ssid = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID);
1203         if (!ssid)
1204                 return -EINVAL;
1205         sdata->u.mgd.ssid_len = *(ssid + 1);
1206         memcpy(sdata->u.mgd.ssid, ssid + 2, sdata->u.mgd.ssid_len);
1207
1208         kfree(sdata->u.mgd.sme_auth_ie);
1209         sdata->u.mgd.sme_auth_ie = NULL;
1210         sdata->u.mgd.sme_auth_ie_len = 0;
1211         if (req->ie) {
1212                 sdata->u.mgd.sme_auth_ie = kmalloc(req->ie_len, GFP_KERNEL);
1213                 if (sdata->u.mgd.sme_auth_ie == NULL)
1214                         return -ENOMEM;
1215                 memcpy(sdata->u.mgd.sme_auth_ie, req->ie, req->ie_len);
1216                 sdata->u.mgd.sme_auth_ie_len = req->ie_len;
1217         }
1218
1219         sdata->u.mgd.state = IEEE80211_STA_MLME_DIRECT_PROBE;
1220         ieee80211_sta_req_auth(sdata);
1221         return 0;
1222 }
1223
1224 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1225                            struct cfg80211_assoc_request *req)
1226 {
1227         struct ieee80211_sub_if_data *sdata;
1228         int ret, i;
1229
1230         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1231
1232         if (memcmp(sdata->u.mgd.bssid, req->bss->bssid, ETH_ALEN) != 0 ||
1233             !(sdata->u.mgd.flags & IEEE80211_STA_AUTHENTICATED))
1234                 return -ENOLINK; /* not authenticated */
1235
1236         sdata->u.mgd.flags &= ~IEEE80211_STA_DISABLE_11N;
1237
1238         for (i = 0; i < req->crypto.n_ciphers_pairwise; i++)
1239                 if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 ||
1240                     req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP ||
1241                     req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104)
1242                         sdata->u.mgd.flags |= IEEE80211_STA_DISABLE_11N;
1243
1244         sdata->local->oper_channel = req->bss->channel;
1245         ieee80211_hw_config(sdata->local, 0);
1246
1247         ret = ieee80211_sta_set_extra_ie(sdata, req->ie, req->ie_len);
1248         if (ret && ret != -EALREADY)
1249                 return ret;
1250
1251         if (req->use_mfp) {
1252                 sdata->u.mgd.mfp = IEEE80211_MFP_REQUIRED;
1253                 sdata->u.mgd.flags |= IEEE80211_STA_MFP_ENABLED;
1254         } else {
1255                 sdata->u.mgd.mfp = IEEE80211_MFP_DISABLED;
1256                 sdata->u.mgd.flags &= ~IEEE80211_STA_MFP_ENABLED;
1257         }
1258
1259         if (req->crypto.control_port)
1260                 sdata->u.mgd.flags |= IEEE80211_STA_CONTROL_PORT;
1261         else
1262                 sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT;
1263
1264         sdata->u.mgd.state = IEEE80211_STA_MLME_ASSOCIATE;
1265         ieee80211_sta_req_auth(sdata);
1266         return 0;
1267 }
1268
1269 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1270                             struct cfg80211_deauth_request *req)
1271 {
1272         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1273
1274         /* TODO: req->ie, req->peer_addr */
1275         return ieee80211_sta_deauthenticate(sdata, req->reason_code);
1276 }
1277
1278 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1279                               struct cfg80211_disassoc_request *req)
1280 {
1281         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1282
1283         /* TODO: req->ie, req->peer_addr */
1284         return ieee80211_sta_disassociate(sdata, req->reason_code);
1285 }
1286
1287 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1288                                struct cfg80211_ibss_params *params)
1289 {
1290         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1291
1292         return ieee80211_ibss_join(sdata, params);
1293 }
1294
1295 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1296 {
1297         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1298
1299         return ieee80211_ibss_leave(sdata);
1300 }
1301
1302 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1303 {
1304         struct ieee80211_local *local = wiphy_priv(wiphy);
1305         int err;
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 tx_power_setting type, int dbm)
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 TX_POWER_AUTOMATIC:
1334                 local->user_power_level = -1;
1335                 break;
1336         case TX_POWER_LIMITED:
1337                 if (dbm < 0)
1338                         return -EINVAL;
1339                 local->user_power_level = dbm;
1340                 break;
1341         case TX_POWER_FIXED:
1342                 if (dbm < 0)
1343                         return -EINVAL;
1344                 /* TODO: move to cfg80211 when it knows the channel */
1345                 if (dbm > chan->max_power)
1346                         return -EINVAL;
1347                 local->user_power_level = dbm;
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 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 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1395                                     bool enabled, int timeout)
1396 {
1397         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1398         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1399         struct ieee80211_conf *conf = &local->hw.conf;
1400
1401         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1402                 return -EOPNOTSUPP;
1403
1404         if (enabled == sdata->u.mgd.powersave &&
1405             timeout == conf->dynamic_ps_timeout)
1406                 return 0;
1407
1408         sdata->u.mgd.powersave = enabled;
1409         conf->dynamic_ps_timeout = timeout;
1410
1411         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1412                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1413
1414         ieee80211_recalc_ps(local, -1);
1415
1416         return 0;
1417 }
1418
1419 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1420                                       struct net_device *dev,
1421                                       const u8 *addr,
1422                                       const struct cfg80211_bitrate_mask *mask)
1423 {
1424         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1425         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1426         int i, err = -EINVAL;
1427         u32 target_rate;
1428         struct ieee80211_supported_band *sband;
1429
1430         sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
1431
1432         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
1433          * target_rate = X, rate->fixed = 1 means only rate X
1434          * target_rate = X, rate->fixed = 0 means all rates <= X */
1435         sdata->max_ratectrl_rateidx = -1;
1436         sdata->force_unicast_rateidx = -1;
1437
1438         if (mask->fixed)
1439                 target_rate = mask->fixed / 100;
1440         else if (mask->maxrate)
1441                 target_rate = mask->maxrate / 100;
1442         else
1443                 return 0;
1444
1445         for (i=0; i< sband->n_bitrates; i++) {
1446                 struct ieee80211_rate *brate = &sband->bitrates[i];
1447                 int this_rate = brate->bitrate;
1448
1449                 if (target_rate == this_rate) {
1450                         sdata->max_ratectrl_rateidx = i;
1451                         if (mask->fixed)
1452                                 sdata->force_unicast_rateidx = i;
1453                         err = 0;
1454                         break;
1455                 }
1456         }
1457
1458         return err;
1459 }
1460
1461 struct cfg80211_ops mac80211_config_ops = {
1462         .add_virtual_intf = ieee80211_add_iface,
1463         .del_virtual_intf = ieee80211_del_iface,
1464         .change_virtual_intf = ieee80211_change_iface,
1465         .add_key = ieee80211_add_key,
1466         .del_key = ieee80211_del_key,
1467         .get_key = ieee80211_get_key,
1468         .set_default_key = ieee80211_config_default_key,
1469         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1470         .add_beacon = ieee80211_add_beacon,
1471         .set_beacon = ieee80211_set_beacon,
1472         .del_beacon = ieee80211_del_beacon,
1473         .add_station = ieee80211_add_station,
1474         .del_station = ieee80211_del_station,
1475         .change_station = ieee80211_change_station,
1476         .get_station = ieee80211_get_station,
1477         .dump_station = ieee80211_dump_station,
1478 #ifdef CONFIG_MAC80211_MESH
1479         .add_mpath = ieee80211_add_mpath,
1480         .del_mpath = ieee80211_del_mpath,
1481         .change_mpath = ieee80211_change_mpath,
1482         .get_mpath = ieee80211_get_mpath,
1483         .dump_mpath = ieee80211_dump_mpath,
1484         .set_mesh_params = ieee80211_set_mesh_params,
1485         .get_mesh_params = ieee80211_get_mesh_params,
1486 #endif
1487         .change_bss = ieee80211_change_bss,
1488         .set_txq_params = ieee80211_set_txq_params,
1489         .set_channel = ieee80211_set_channel,
1490         .suspend = ieee80211_suspend,
1491         .resume = ieee80211_resume,
1492         .scan = ieee80211_scan,
1493         .auth = ieee80211_auth,
1494         .assoc = ieee80211_assoc,
1495         .deauth = ieee80211_deauth,
1496         .disassoc = ieee80211_disassoc,
1497         .join_ibss = ieee80211_join_ibss,
1498         .leave_ibss = ieee80211_leave_ibss,
1499         .set_wiphy_params = ieee80211_set_wiphy_params,
1500         .set_tx_power = ieee80211_set_tx_power,
1501         .get_tx_power = ieee80211_get_tx_power,
1502         .set_wds_peer = ieee80211_set_wds_peer,
1503         .rfkill_poll = ieee80211_rfkill_poll,
1504         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1505         .set_power_mgmt = ieee80211_set_power_mgmt,
1506         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1507 };