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