net/mac80211/cfg.c

   1 /*
   2  * mac80211 configuration hooks for cfg80211
   3  *
   4  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   5  * Copyright 2013-2015  Intel Mobile Communications GmbH
   6  * Copyright (C) 2015-2016 Intel Deutschland GmbH
   7  *
   8  * This file is GPLv2 as found in COPYING.
   9  */
  10
  11 #include <linux/ieee80211.h>
  12 #include <linux/nl80211.h>
  13 #include <linux/rtnetlink.h>
  14 #include <linux/slab.h>
  15 #include <net/net_namespace.h>
  16 #include <linux/rcupdate.h>
  17 #include <linux/if_ether.h>
  18 #include <net/cfg80211.h>
  19 #include "ieee80211_i.h"
  20 #include "driver-ops.h"
  21 #include "rate.h"
  22 #include "mesh.h"
  23 #include "wme.h"
  24
  25 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
  26                                                 const char *name,
  27                                                 unsigned char name_assign_type,
  28                                                 enum nl80211_iftype type,
  29                                                 u32 *flags,
  30                                                 struct vif_params *params)
  31 {
  32         struct ieee80211_local *local = wiphy_priv(wiphy);
  33         struct wireless_dev *wdev;
  34         struct ieee80211_sub_if_data *sdata;
  35         int err;
  36
  37         err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
  38         if (err)
  39                 return ERR_PTR(err);
  40
  41         if (type == NL80211_IFTYPE_MONITOR && flags) {
  42                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
  43                 sdata->u.mntr.flags = *flags;
  44         }
  45
  46         return wdev;
  47 }
  48
  49 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
  50 {
  51         ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
  52
  53         return 0;
  54 }
  55
  56 static int ieee80211_change_iface(struct wiphy *wiphy,
  57                                   struct net_device *dev,
  58                                   enum nl80211_iftype type, u32 *flags,
  59                                   struct vif_params *params)
  60 {
  61         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  62         int ret;
  63
  64         ret = ieee80211_if_change_type(sdata, type);
  65         if (ret)
  66                 return ret;
  67
  68         if (type == NL80211_IFTYPE_AP_VLAN &&
  69             params && params->use_4addr == 0) {
  70                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
  71                 ieee80211_check_fast_rx_iface(sdata);
  72         } else if (type == NL80211_IFTYPE_STATION &&
  73                    params && params->use_4addr >= 0) {
  74                 sdata->u.mgd.use_4addr = params->use_4addr;
  75         }
  76
  77         if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
  78                 struct ieee80211_local *local = sdata->local;
  79                 struct ieee80211_sub_if_data *monitor_sdata;
  80                 u32 mu_mntr_cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
  81
  82                 monitor_sdata = rtnl_dereference(local->monitor_sdata);
  83                 if (monitor_sdata &&
  84                     wiphy_ext_feature_isset(wiphy, mu_mntr_cap_flag)) {
  85                         memcpy(monitor_sdata->vif.bss_conf.mu_group.membership,
  86                                params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
  87                         memcpy(monitor_sdata->vif.bss_conf.mu_group.position,
  88                                params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
  89                                WLAN_USER_POSITION_LEN);
  90                         monitor_sdata->vif.mu_mimo_owner = true;
  91                         ieee80211_bss_info_change_notify(monitor_sdata,
  92                                                          BSS_CHANGED_MU_GROUPS);
  93
  94                         ether_addr_copy(monitor_sdata->u.mntr.mu_follow_addr,
  95                                         params->macaddr);
  96                 }
  97
  98                 if (!flags)
  99                         return 0;
 100
 101                 if (ieee80211_sdata_running(sdata)) {
 102                         u32 mask = MONITOR_FLAG_COOK_FRAMES |
 103                                    MONITOR_FLAG_ACTIVE;
 104
 105                         /*
 106                          * Prohibit MONITOR_FLAG_COOK_FRAMES and
 107                          * MONITOR_FLAG_ACTIVE to be changed while the
 108                          * interface is up.
 109                          * Else we would need to add a lot of cruft
 110                          * to update everything:
 111                          *      cooked_mntrs, monitor and all fif_* counters
 112                          *      reconfigure hardware
 113                          */
 114                         if ((*flags & mask) != (sdata->u.mntr.flags & mask))
 115                                 return -EBUSY;
 116
 117                         ieee80211_adjust_monitor_flags(sdata, -1);
 118                         sdata->u.mntr.flags = *flags;
 119                         ieee80211_adjust_monitor_flags(sdata, 1);
 120
 121                         ieee80211_configure_filter(local);
 122                 } else {
 123                         /*
 124                          * Because the interface is down, ieee80211_do_stop
 125                          * and ieee80211_do_open take care of "everything"
 126                          * mentioned in the comment above.
 127                          */
 128                         sdata->u.mntr.flags = *flags;
 129                 }
 130         }
 131
 132         return 0;
 133 }
 134
 135 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 136                                       struct wireless_dev *wdev)
 137 {
 138         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 139         int ret;
 140
 141         mutex_lock(&sdata->local->chanctx_mtx);
 142         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 143         mutex_unlock(&sdata->local->chanctx_mtx);
 144         if (ret < 0)
 145                 return ret;
 146
 147         return ieee80211_do_open(wdev, true);
 148 }
 149
 150 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 151                                       struct wireless_dev *wdev)
 152 {
 153         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 154 }
 155
 156 static int ieee80211_start_nan(struct wiphy *wiphy,
 157                                struct wireless_dev *wdev,
 158                                struct cfg80211_nan_conf *conf)
 159 {
 160         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 161         int ret;
 162
 163         mutex_lock(&sdata->local->chanctx_mtx);
 164         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 165         mutex_unlock(&sdata->local->chanctx_mtx);
 166         if (ret < 0)
 167                 return ret;
 168
 169         ret = ieee80211_do_open(wdev, true);
 170         if (ret)
 171                 return ret;
 172
 173         ret = drv_start_nan(sdata->local, sdata, conf);
 174         if (ret)
 175                 ieee80211_sdata_stop(sdata);
 176
 177         sdata->u.nan.conf = *conf;
 178
 179         return ret;
 180 }
 181
 182 static void ieee80211_stop_nan(struct wiphy *wiphy,
 183                                struct wireless_dev *wdev)
 184 {
 185         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 186
 187         drv_stop_nan(sdata->local, sdata);
 188         ieee80211_sdata_stop(sdata);
 189 }
 190
 191 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
 192                                      struct wireless_dev *wdev,
 193                                      struct cfg80211_nan_conf *conf,
 194                                      u32 changes)
 195 {
 196         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 197         struct cfg80211_nan_conf new_conf;
 198         int ret = 0;
 199
 200         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 201                 return -EOPNOTSUPP;
 202
 203         if (!ieee80211_sdata_running(sdata))
 204                 return -ENETDOWN;
 205
 206         new_conf = sdata->u.nan.conf;
 207
 208         if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
 209                 new_conf.master_pref = conf->master_pref;
 210
 211         if (changes & CFG80211_NAN_CONF_CHANGED_DUAL)
 212                 new_conf.dual = conf->dual;
 213
 214         ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
 215         if (!ret)
 216                 sdata->u.nan.conf = new_conf;
 217
 218         return ret;
 219 }
 220
 221 static int ieee80211_add_nan_func(struct wiphy *wiphy,
 222                                   struct wireless_dev *wdev,
 223                                   struct cfg80211_nan_func *nan_func)
 224 {
 225         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 226         int ret;
 227
 228         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 229                 return -EOPNOTSUPP;
 230
 231         if (!ieee80211_sdata_running(sdata))
 232                 return -ENETDOWN;
 233
 234         spin_lock_bh(&sdata->u.nan.func_lock);
 235
 236         ret = idr_alloc(&sdata->u.nan.function_inst_ids,
 237                         nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
 238                         GFP_ATOMIC);
 239         spin_unlock_bh(&sdata->u.nan.func_lock);
 240
 241         if (ret < 0)
 242                 return ret;
 243
 244         nan_func->instance_id = ret;
 245
 246         WARN_ON(nan_func->instance_id == 0);
 247
 248         ret = drv_add_nan_func(sdata->local, sdata, nan_func);
 249         if (ret) {
 250                 spin_lock_bh(&sdata->u.nan.func_lock);
 251                 idr_remove(&sdata->u.nan.function_inst_ids,
 252                            nan_func->instance_id);
 253                 spin_unlock_bh(&sdata->u.nan.func_lock);
 254         }
 255
 256         return ret;
 257 }
 258
 259 static struct cfg80211_nan_func *
 260 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
 261                                   u64 cookie)
 262 {
 263         struct cfg80211_nan_func *func;
 264         int id;
 265
 266         lockdep_assert_held(&sdata->u.nan.func_lock);
 267
 268         idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
 269                 if (func->cookie == cookie)
 270                         return func;
 271         }
 272
 273         return NULL;
 274 }
 275
 276 static void ieee80211_del_nan_func(struct wiphy *wiphy,
 277                                   struct wireless_dev *wdev, u64 cookie)
 278 {
 279         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 280         struct cfg80211_nan_func *func;
 281         u8 instance_id = 0;
 282
 283         if (sdata->vif.type != NL80211_IFTYPE_NAN ||
 284             !ieee80211_sdata_running(sdata))
 285                 return;
 286
 287         spin_lock_bh(&sdata->u.nan.func_lock);
 288
 289         func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
 290         if (func)
 291                 instance_id = func->instance_id;
 292
 293         spin_unlock_bh(&sdata->u.nan.func_lock);
 294
 295         if (instance_id)
 296                 drv_del_nan_func(sdata->local, sdata, instance_id);
 297 }
 298
 299 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 300                                   struct net_device *dev,
 301                                   u16 noack_map)
 302 {
 303         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 304
 305         sdata->noack_map = noack_map;
 306
 307         ieee80211_check_fast_xmit_iface(sdata);
 308
 309         return 0;
 310 }
 311
 312 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 313                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 314                              struct key_params *params)
 315 {
 316         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 317         struct ieee80211_local *local = sdata->local;
 318         struct sta_info *sta = NULL;
 319         const struct ieee80211_cipher_scheme *cs = NULL;
 320         struct ieee80211_key *key;
 321         int err;
 322
 323         if (!ieee80211_sdata_running(sdata))
 324                 return -ENETDOWN;
 325
 326         /* reject WEP and TKIP keys if WEP failed to initialize */
 327         switch (params->cipher) {
 328         case WLAN_CIPHER_SUITE_WEP40:
 329         case WLAN_CIPHER_SUITE_TKIP:
 330         case WLAN_CIPHER_SUITE_WEP104:
 331                 if (IS_ERR(local->wep_tx_tfm))
 332                         return -EINVAL;
 333                 break;
 334         case WLAN_CIPHER_SUITE_CCMP:
 335         case WLAN_CIPHER_SUITE_CCMP_256:
 336         case WLAN_CIPHER_SUITE_AES_CMAC:
 337         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 338         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 339         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 340         case WLAN_CIPHER_SUITE_GCMP:
 341         case WLAN_CIPHER_SUITE_GCMP_256:
 342                 break;
 343         default:
 344                 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
 345                 break;
 346         }
 347
 348         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 349                                   params->key, params->seq_len, params->seq,
 350                                   cs);
 351         if (IS_ERR(key))
 352                 return PTR_ERR(key);
 353
 354         if (pairwise)
 355                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 356
 357         mutex_lock(&local->sta_mtx);
 358
 359         if (mac_addr) {
 360                 if (ieee80211_vif_is_mesh(&sdata->vif))
 361                         sta = sta_info_get(sdata, mac_addr);
 362                 else
 363                         sta = sta_info_get_bss(sdata, mac_addr);
 364                 /*
 365                  * The ASSOC test makes sure the driver is ready to
 366                  * receive the key. When wpa_supplicant has roamed
 367                  * using FT, it attempts to set the key before
 368                  * association has completed, this rejects that attempt
 369                  * so it will set the key again after association.
 370                  *
 371                  * TODO: accept the key if we have a station entry and
 372                  *       add it to the device after the station.
 373                  */
 374                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 375                         ieee80211_key_free_unused(key);
 376                         err = -ENOENT;
 377                         goto out_unlock;
 378                 }
 379         }
 380
 381         switch (sdata->vif.type) {
 382         case NL80211_IFTYPE_STATION:
 383                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 384                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 385                 break;
 386         case NL80211_IFTYPE_AP:
 387         case NL80211_IFTYPE_AP_VLAN:
 388                 /* Keys without a station are used for TX only */
 389                 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
 390                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 391                 break;
 392         case NL80211_IFTYPE_ADHOC:
 393                 /* no MFP (yet) */
 394                 break;
 395         case NL80211_IFTYPE_MESH_POINT:
 396 #ifdef CONFIG_MAC80211_MESH
 397                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 398                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 399                 break;
 400 #endif
 401         case NL80211_IFTYPE_WDS:
 402         case NL80211_IFTYPE_MONITOR:
 403         case NL80211_IFTYPE_P2P_DEVICE:
 404         case NL80211_IFTYPE_NAN:
 405         case NL80211_IFTYPE_UNSPECIFIED:
 406         case NUM_NL80211_IFTYPES:
 407         case NL80211_IFTYPE_P2P_CLIENT:
 408         case NL80211_IFTYPE_P2P_GO:
 409         case NL80211_IFTYPE_OCB:
 410                 /* shouldn't happen */
 411                 WARN_ON_ONCE(1);
 412                 break;
 413         }
 414
 415         if (sta)
 416                 sta->cipher_scheme = cs;
 417
 418         err = ieee80211_key_link(key, sdata, sta);
 419
 420  out_unlock:
 421         mutex_unlock(&local->sta_mtx);
 422
 423         return err;
 424 }
 425
 426 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 427                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 428 {
 429         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 430         struct ieee80211_local *local = sdata->local;
 431         struct sta_info *sta;
 432         struct ieee80211_key *key = NULL;
 433         int ret;
 434
 435         mutex_lock(&local->sta_mtx);
 436         mutex_lock(&local->key_mtx);
 437
 438         if (mac_addr) {
 439                 ret = -ENOENT;
 440
 441                 sta = sta_info_get_bss(sdata, mac_addr);
 442                 if (!sta)
 443                         goto out_unlock;
 444
 445                 if (pairwise)
 446                         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 447                 else
 448                         key = key_mtx_dereference(local, sta->gtk[key_idx]);
 449         } else
 450                 key = key_mtx_dereference(local, sdata->keys[key_idx]);
 451
 452         if (!key) {
 453                 ret = -ENOENT;
 454                 goto out_unlock;
 455         }
 456
 457         ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
 458
 459         ret = 0;
 460  out_unlock:
 461         mutex_unlock(&local->key_mtx);
 462         mutex_unlock(&local->sta_mtx);
 463
 464         return ret;
 465 }
 466
 467 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 468                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 469                              void *cookie,
 470                              void (*callback)(void *cookie,
 471                                               struct key_params *params))
 472 {
 473         struct ieee80211_sub_if_data *sdata;
 474         struct sta_info *sta = NULL;
 475         u8 seq[6] = {0};
 476         struct key_params params;
 477         struct ieee80211_key *key = NULL;
 478         u64 pn64;
 479         u32 iv32;
 480         u16 iv16;
 481         int err = -ENOENT;
 482         struct ieee80211_key_seq kseq = {};
 483
 484         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 485
 486         rcu_read_lock();
 487
 488         if (mac_addr) {
 489                 sta = sta_info_get_bss(sdata, mac_addr);
 490                 if (!sta)
 491                         goto out;
 492
 493                 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 494                         key = rcu_dereference(sta->ptk[key_idx]);
 495                 else if (!pairwise &&
 496                          key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
 497                         key = rcu_dereference(sta->gtk[key_idx]);
 498         } else
 499                 key = rcu_dereference(sdata->keys[key_idx]);
 500
 501         if (!key)
 502                 goto out;
 503
 504         memset(&params, 0, sizeof(params));
 505
 506         params.cipher = key->conf.cipher;
 507
 508         switch (key->conf.cipher) {
 509         case WLAN_CIPHER_SUITE_TKIP:
 510                 pn64 = atomic64_read(&key->conf.tx_pn);
 511                 iv32 = TKIP_PN_TO_IV32(pn64);
 512                 iv16 = TKIP_PN_TO_IV16(pn64);
 513
 514                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 515                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 516                         drv_get_key_seq(sdata->local, key, &kseq);
 517                         iv32 = kseq.tkip.iv32;
 518                         iv16 = kseq.tkip.iv16;
 519                 }
 520
 521                 seq[0] = iv16 & 0xff;
 522                 seq[1] = (iv16 >> 8) & 0xff;
 523                 seq[2] = iv32 & 0xff;
 524                 seq[3] = (iv32 >> 8) & 0xff;
 525                 seq[4] = (iv32 >> 16) & 0xff;
 526                 seq[5] = (iv32 >> 24) & 0xff;
 527                 params.seq = seq;
 528                 params.seq_len = 6;
 529                 break;
 530         case WLAN_CIPHER_SUITE_CCMP:
 531         case WLAN_CIPHER_SUITE_CCMP_256:
 532         case WLAN_CIPHER_SUITE_AES_CMAC:
 533         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 534                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 535                              offsetof(typeof(kseq), aes_cmac));
 536         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 537         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 538                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 539                              offsetof(typeof(kseq), aes_gmac));
 540         case WLAN_CIPHER_SUITE_GCMP:
 541         case WLAN_CIPHER_SUITE_GCMP_256:
 542                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 543                              offsetof(typeof(kseq), gcmp));
 544
 545                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 546                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 547                         drv_get_key_seq(sdata->local, key, &kseq);
 548                         memcpy(seq, kseq.ccmp.pn, 6);
 549                 } else {
 550                         pn64 = atomic64_read(&key->conf.tx_pn);
 551                         seq[0] = pn64;
 552                         seq[1] = pn64 >> 8;
 553                         seq[2] = pn64 >> 16;
 554                         seq[3] = pn64 >> 24;
 555                         seq[4] = pn64 >> 32;
 556                         seq[5] = pn64 >> 40;
 557                 }
 558                 params.seq = seq;
 559                 params.seq_len = 6;
 560                 break;
 561         default:
 562                 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
 563                         break;
 564                 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
 565                         break;
 566                 drv_get_key_seq(sdata->local, key, &kseq);
 567                 params.seq = kseq.hw.seq;
 568                 params.seq_len = kseq.hw.seq_len;
 569                 break;
 570         }
 571
 572         params.key = key->conf.key;
 573         params.key_len = key->conf.keylen;
 574
 575         callback(cookie, &params);
 576         err = 0;
 577
 578  out:
 579         rcu_read_unlock();
 580         return err;
 581 }
 582
 583 static int ieee80211_config_default_key(struct wiphy *wiphy,
 584                                         struct net_device *dev,
 585                                         u8 key_idx, bool uni,
 586                                         bool multi)
 587 {
 588         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 589
 590         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 591
 592         return 0;
 593 }
 594
 595 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 596                                              struct net_device *dev,
 597                                              u8 key_idx)
 598 {
 599         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 600
 601         ieee80211_set_default_mgmt_key(sdata, key_idx);
 602
 603         return 0;
 604 }
 605
 606 void sta_set_rate_info_tx(struct sta_info *sta,
 607                           const struct ieee80211_tx_rate *rate,
 608                           struct rate_info *rinfo)
 609 {
 610         rinfo->flags = 0;
 611         if (rate->flags & IEEE80211_TX_RC_MCS) {
 612                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 613                 rinfo->mcs = rate->idx;
 614         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 615                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 616                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 617                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 618         } else {
 619                 struct ieee80211_supported_band *sband;
 620                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 621                 u16 brate;
 622
 623                 sband = ieee80211_get_sband(sta->sdata);
 624                 if (sband) {
 625                         brate = sband->bitrates[rate->idx].bitrate;
 626                         rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 627                 }
 628         }
 629         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 630                 rinfo->bw = RATE_INFO_BW_40;
 631         else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 632                 rinfo->bw = RATE_INFO_BW_80;
 633         else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 634                 rinfo->bw = RATE_INFO_BW_160;
 635         else
 636                 rinfo->bw = RATE_INFO_BW_20;
 637         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 638                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 639 }
 640
 641 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 642                                   int idx, u8 *mac, struct station_info *sinfo)
 643 {
 644         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 645         struct ieee80211_local *local = sdata->local;
 646         struct sta_info *sta;
 647         int ret = -ENOENT;
 648
 649         mutex_lock(&local->sta_mtx);
 650
 651         sta = sta_info_get_by_idx(sdata, idx);
 652         if (sta) {
 653                 ret = 0;
 654                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 655                 sta_set_sinfo(sta, sinfo);
 656         }
 657
 658         mutex_unlock(&local->sta_mtx);
 659
 660         return ret;
 661 }
 662
 663 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 664                                  int idx, struct survey_info *survey)
 665 {
 666         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 667
 668         return drv_get_survey(local, idx, survey);
 669 }
 670
 671 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 672                                  const u8 *mac, struct station_info *sinfo)
 673 {
 674         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 675         struct ieee80211_local *local = sdata->local;
 676         struct sta_info *sta;
 677         int ret = -ENOENT;
 678
 679         mutex_lock(&local->sta_mtx);
 680
 681         sta = sta_info_get_bss(sdata, mac);
 682         if (sta) {
 683                 ret = 0;
 684                 sta_set_sinfo(sta, sinfo);
 685         }
 686
 687         mutex_unlock(&local->sta_mtx);
 688
 689         return ret;
 690 }
 691
 692 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 693                                          struct cfg80211_chan_def *chandef)
 694 {
 695         struct ieee80211_local *local = wiphy_priv(wiphy);
 696         struct ieee80211_sub_if_data *sdata;
 697         int ret = 0;
 698
 699         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 700                 return 0;
 701
 702         mutex_lock(&local->mtx);
 703         mutex_lock(&local->iflist_mtx);
 704         if (local->use_chanctx) {
 705                 sdata = rcu_dereference_protected(
 706                                 local->monitor_sdata,
 707                                 lockdep_is_held(&local->iflist_mtx));
 708                 if (sdata) {
 709                         ieee80211_vif_release_channel(sdata);
 710                         ret = ieee80211_vif_use_channel(sdata, chandef,
 711                                         IEEE80211_CHANCTX_EXCLUSIVE);
 712                 }
 713         } else if (local->open_count == local->monitors) {
 714                 local->_oper_chandef = *chandef;
 715                 ieee80211_hw_config(local, 0);
 716         }
 717
 718         if (ret == 0)
 719                 local->monitor_chandef = *chandef;
 720         mutex_unlock(&local->iflist_mtx);
 721         mutex_unlock(&local->mtx);
 722
 723         return ret;
 724 }
 725
 726 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 727                                     const u8 *resp, size_t resp_len,
 728                                     const struct ieee80211_csa_settings *csa)
 729 {
 730         struct probe_resp *new, *old;
 731
 732         if (!resp || !resp_len)
 733                 return 1;
 734
 735         old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 736
 737         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 738         if (!new)
 739                 return -ENOMEM;
 740
 741         new->len = resp_len;
 742         memcpy(new->data, resp, resp_len);
 743
 744         if (csa)
 745                 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
 746                        csa->n_counter_offsets_presp *
 747                        sizeof(new->csa_counter_offsets[0]));
 748
 749         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 750         if (old)
 751                 kfree_rcu(old, rcu_head);
 752
 753         return 0;
 754 }
 755
 756 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 757                                    struct cfg80211_beacon_data *params,
 758                                    const struct ieee80211_csa_settings *csa)
 759 {
 760         struct beacon_data *new, *old;
 761         int new_head_len, new_tail_len;
 762         int size, err;
 763         u32 changed = BSS_CHANGED_BEACON;
 764
 765         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 766
 767
 768         /* Need to have a beacon head if we don't have one yet */
 769         if (!params->head && !old)
 770                 return -EINVAL;
 771
 772         /* new or old head? */
 773         if (params->head)
 774                 new_head_len = params->head_len;
 775         else
 776                 new_head_len = old->head_len;
 777
 778         /* new or old tail? */
 779         if (params->tail || !old)
 780                 /* params->tail_len will be zero for !params->tail */
 781                 new_tail_len = params->tail_len;
 782         else
 783                 new_tail_len = old->tail_len;
 784
 785         size = sizeof(*new) + new_head_len + new_tail_len;
 786
 787         new = kzalloc(size, GFP_KERNEL);
 788         if (!new)
 789                 return -ENOMEM;
 790
 791         /* start filling the new info now */
 792
 793         /*
 794          * pointers go into the block we allocated,
 795          * memory is | beacon_data | head | tail |
 796          */
 797         new->head = ((u8 *) new) + sizeof(*new);
 798         new->tail = new->head + new_head_len;
 799         new->head_len = new_head_len;
 800         new->tail_len = new_tail_len;
 801
 802         if (csa) {
 803                 new->csa_current_counter = csa->count;
 804                 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
 805                        csa->n_counter_offsets_beacon *
 806                        sizeof(new->csa_counter_offsets[0]));
 807         }
 808
 809         /* copy in head */
 810         if (params->head)
 811                 memcpy(new->head, params->head, new_head_len);
 812         else
 813                 memcpy(new->head, old->head, new_head_len);
 814
 815         /* copy in optional tail */
 816         if (params->tail)
 817                 memcpy(new->tail, params->tail, new_tail_len);
 818         else
 819                 if (old)
 820                         memcpy(new->tail, old->tail, new_tail_len);
 821
 822         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
 823                                        params->probe_resp_len, csa);
 824         if (err < 0)
 825                 return err;
 826         if (err == 0)
 827                 changed |= BSS_CHANGED_AP_PROBE_RESP;
 828
 829         rcu_assign_pointer(sdata->u.ap.beacon, new);
 830
 831         if (old)
 832                 kfree_rcu(old, rcu_head);
 833
 834         return changed;
 835 }
 836
 837 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 838                               struct cfg80211_ap_settings *params)
 839 {
 840         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 841         struct ieee80211_local *local = sdata->local;
 842         struct beacon_data *old;
 843         struct ieee80211_sub_if_data *vlan;
 844         u32 changed = BSS_CHANGED_BEACON_INT |
 845                       BSS_CHANGED_BEACON_ENABLED |
 846                       BSS_CHANGED_BEACON |
 847                       BSS_CHANGED_SSID |
 848                       BSS_CHANGED_P2P_PS |
 849                       BSS_CHANGED_TXPOWER;
 850         int err;
 851
 852         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 853         if (old)
 854                 return -EALREADY;
 855
 856         switch (params->smps_mode) {
 857         case NL80211_SMPS_OFF:
 858                 sdata->smps_mode = IEEE80211_SMPS_OFF;
 859                 break;
 860         case NL80211_SMPS_STATIC:
 861                 sdata->smps_mode = IEEE80211_SMPS_STATIC;
 862                 break;
 863         case NL80211_SMPS_DYNAMIC:
 864                 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
 865                 break;
 866         default:
 867                 return -EINVAL;
 868         }
 869         sdata->u.ap.req_smps = sdata->smps_mode;
 870
 871         sdata->needed_rx_chains = sdata->local->rx_chains;
 872
 873         mutex_lock(&local->mtx);
 874         err = ieee80211_vif_use_channel(sdata, &params->chandef,
 875                                         IEEE80211_CHANCTX_SHARED);
 876         if (!err)
 877                 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
 878         mutex_unlock(&local->mtx);
 879         if (err)
 880                 return err;
 881
 882         /*
 883          * Apply control port protocol, this allows us to
 884          * not encrypt dynamic WEP control frames.
 885          */
 886         sdata->control_port_protocol = params->crypto.control_port_ethertype;
 887         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
 888         sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
 889                                                         &params->crypto,
 890                                                         sdata->vif.type);
 891
 892         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
 893                 vlan->control_port_protocol =
 894                         params->crypto.control_port_ethertype;
 895                 vlan->control_port_no_encrypt =
 896                         params->crypto.control_port_no_encrypt;
 897                 vlan->encrypt_headroom =
 898                         ieee80211_cs_headroom(sdata->local,
 899                                               &params->crypto,
 900                                               vlan->vif.type);
 901         }
 902
 903         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
 904         sdata->vif.bss_conf.dtim_period = params->dtim_period;
 905         sdata->vif.bss_conf.enable_beacon = true;
 906         sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
 907
 908         sdata->vif.bss_conf.ssid_len = params->ssid_len;
 909         if (params->ssid_len)
 910                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
 911                        params->ssid_len);
 912         sdata->vif.bss_conf.hidden_ssid =
 913                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
 914
 915         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
 916                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
 917         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
 918                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
 919         if (params->p2p_opp_ps)
 920                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
 921                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
 922
 923         err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
 924         if (err < 0) {
 925                 ieee80211_vif_release_channel(sdata);
 926                 return err;
 927         }
 928         changed |= err;
 929
 930         err = drv_start_ap(sdata->local, sdata);
 931         if (err) {
 932                 old = sdata_dereference(sdata->u.ap.beacon, sdata);
 933
 934                 if (old)
 935                         kfree_rcu(old, rcu_head);
 936                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
 937                 ieee80211_vif_release_channel(sdata);
 938                 return err;
 939         }
 940
 941         ieee80211_recalc_dtim(local, sdata);
 942         ieee80211_bss_info_change_notify(sdata, changed);
 943
 944         netif_carrier_on(dev);
 945         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
 946                 netif_carrier_on(vlan->dev);
 947
 948         return 0;
 949 }
 950
 951 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
 952                                    struct cfg80211_beacon_data *params)
 953 {
 954         struct ieee80211_sub_if_data *sdata;
 955         struct beacon_data *old;
 956         int err;
 957
 958         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 959         sdata_assert_lock(sdata);
 960
 961         /* don't allow changing the beacon while CSA is in place - offset
 962          * of channel switch counter may change
 963          */
 964         if (sdata->vif.csa_active)
 965                 return -EBUSY;
 966
 967         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 968         if (!old)
 969                 return -ENOENT;
 970
 971         err = ieee80211_assign_beacon(sdata, params, NULL);
 972         if (err < 0)
 973                 return err;
 974         ieee80211_bss_info_change_notify(sdata, err);
 975         return 0;
 976 }
 977
 978 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 979 {
 980         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 981         struct ieee80211_sub_if_data *vlan;
 982         struct ieee80211_local *local = sdata->local;
 983         struct beacon_data *old_beacon;
 984         struct probe_resp *old_probe_resp;
 985         struct cfg80211_chan_def chandef;
 986
 987         sdata_assert_lock(sdata);
 988
 989         old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
 990         if (!old_beacon)
 991                 return -ENOENT;
 992         old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 993
 994         /* abort any running channel switch */
 995         mutex_lock(&local->mtx);
 996         sdata->vif.csa_active = false;
 997         if (sdata->csa_block_tx) {
 998                 ieee80211_wake_vif_queues(local, sdata,
 999                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1000                 sdata->csa_block_tx = false;
1001         }
1002
1003         mutex_unlock(&local->mtx);
1004
1005         kfree(sdata->u.ap.next_beacon);
1006         sdata->u.ap.next_beacon = NULL;
1007
1008         /* turn off carrier for this interface and dependent VLANs */
1009         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1010                 netif_carrier_off(vlan->dev);
1011         netif_carrier_off(dev);
1012
1013         /* remove beacon and probe response */
1014         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1015         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1016         kfree_rcu(old_beacon, rcu_head);
1017         if (old_probe_resp)
1018                 kfree_rcu(old_probe_resp, rcu_head);
1019         sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1020
1021         __sta_info_flush(sdata, true);
1022         ieee80211_free_keys(sdata, true);
1023
1024         sdata->vif.bss_conf.enable_beacon = false;
1025         sdata->vif.bss_conf.ssid_len = 0;
1026         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1027         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1028
1029         if (sdata->wdev.cac_started) {
1030                 chandef = sdata->vif.bss_conf.chandef;
1031                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1032                 cfg80211_cac_event(sdata->dev, &chandef,
1033                                    NL80211_RADAR_CAC_ABORTED,
1034                                    GFP_KERNEL);
1035         }
1036
1037         drv_stop_ap(sdata->local, sdata);
1038
1039         /* free all potentially still buffered bcast frames */
1040         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1041         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1042
1043         mutex_lock(&local->mtx);
1044         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1045         ieee80211_vif_release_channel(sdata);
1046         mutex_unlock(&local->mtx);
1047
1048         return 0;
1049 }
1050
1051 static int sta_apply_auth_flags(struct ieee80211_local *local,
1052                                 struct sta_info *sta,
1053                                 u32 mask, u32 set)
1054 {
1055         int ret;
1056
1057         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1058             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1059             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1060                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1061                 if (ret)
1062                         return ret;
1063         }
1064
1065         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1066             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1067             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1068                 /*
1069                  * When peer becomes associated, init rate control as
1070                  * well. Some drivers require rate control initialized
1071                  * before drv_sta_state() is called.
1072                  */
1073                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1074                         rate_control_rate_init(sta);
1075
1076                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1077                 if (ret)
1078                         return ret;
1079         }
1080
1081         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1082                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1083                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1084                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1085                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1086                 else
1087                         ret = 0;
1088                 if (ret)
1089                         return ret;
1090         }
1091
1092         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1093             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1094             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1095                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1096                 if (ret)
1097                         return ret;
1098         }
1099
1100         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1101             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1102             test_sta_flag(sta, WLAN_STA_AUTH)) {
1103                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1104                 if (ret)
1105                         return ret;
1106         }
1107
1108         return 0;
1109 }
1110
1111 static void sta_apply_mesh_params(struct ieee80211_local *local,
1112                                   struct sta_info *sta,
1113                                   struct station_parameters *params)
1114 {
1115 #ifdef CONFIG_MAC80211_MESH
1116         struct ieee80211_sub_if_data *sdata = sta->sdata;
1117         u32 changed = 0;
1118
1119         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1120                 switch (params->plink_state) {
1121                 case NL80211_PLINK_ESTAB:
1122                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1123                                 changed = mesh_plink_inc_estab_count(sdata);
1124                         sta->mesh->plink_state = params->plink_state;
1125                         sta->mesh->aid = params->peer_aid;
1126
1127                         ieee80211_mps_sta_status_update(sta);
1128                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1129                                       sdata->u.mesh.mshcfg.power_mode);
1130                         break;
1131                 case NL80211_PLINK_LISTEN:
1132                 case NL80211_PLINK_BLOCKED:
1133                 case NL80211_PLINK_OPN_SNT:
1134                 case NL80211_PLINK_OPN_RCVD:
1135                 case NL80211_PLINK_CNF_RCVD:
1136                 case NL80211_PLINK_HOLDING:
1137                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1138                                 changed = mesh_plink_dec_estab_count(sdata);
1139                         sta->mesh->plink_state = params->plink_state;
1140
1141                         ieee80211_mps_sta_status_update(sta);
1142                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1143                                         NL80211_MESH_POWER_UNKNOWN);
1144                         break;
1145                 default:
1146                         /*  nothing  */
1147                         break;
1148                 }
1149         }
1150
1151         switch (params->plink_action) {
1152         case NL80211_PLINK_ACTION_NO_ACTION:
1153                 /* nothing */
1154                 break;
1155         case NL80211_PLINK_ACTION_OPEN:
1156                 changed |= mesh_plink_open(sta);
1157                 break;
1158         case NL80211_PLINK_ACTION_BLOCK:
1159                 changed |= mesh_plink_block(sta);
1160                 break;
1161         }
1162
1163         if (params->local_pm)
1164                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1165                                                           params->local_pm);
1166
1167         ieee80211_mbss_info_change_notify(sdata, changed);
1168 #endif
1169 }
1170
1171 static int sta_apply_parameters(struct ieee80211_local *local,
1172                                 struct sta_info *sta,
1173                                 struct station_parameters *params)
1174 {
1175         int ret = 0;
1176         struct ieee80211_supported_band *sband;
1177         struct ieee80211_sub_if_data *sdata = sta->sdata;
1178         u32 mask, set;
1179
1180         sband = ieee80211_get_sband(sdata);
1181         if (!sband)
1182                 return -EINVAL;
1183
1184         mask = params->sta_flags_mask;
1185         set = params->sta_flags_set;
1186
1187         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1188                 /*
1189                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1190                  * API but must follow AUTHENTICATED for driver state.
1191                  */
1192                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1193                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1194                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1195                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1196         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1197                 /*
1198                  * TDLS -- everything follows authorized, but
1199                  * only becoming authorized is possible, not
1200                  * going back
1201                  */
1202                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1203                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1204                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1205                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1206                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1207                 }
1208         }
1209
1210         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1211             local->hw.queues >= IEEE80211_NUM_ACS)
1212                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1213
1214         /* auth flags will be set later for TDLS,
1215          * and for unassociated stations that move to assocaited */
1216         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1217             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1218               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1219                 ret = sta_apply_auth_flags(local, sta, mask, set);
1220                 if (ret)
1221                         return ret;
1222         }
1223
1224         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1225                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1226                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1227                 else
1228                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1229         }
1230
1231         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1232                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1233                 if (set & BIT(NL80211_STA_FLAG_MFP))
1234                         set_sta_flag(sta, WLAN_STA_MFP);
1235                 else
1236                         clear_sta_flag(sta, WLAN_STA_MFP);
1237         }
1238
1239         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1240                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1241                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1242                 else
1243                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1244         }
1245
1246         /* mark TDLS channel switch support, if the AP allows it */
1247         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1248             !sdata->u.mgd.tdls_chan_switch_prohibited &&
1249             params->ext_capab_len >= 4 &&
1250             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1251                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1252
1253         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1254             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1255             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1256             params->ext_capab_len >= 8 &&
1257             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1258                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1259
1260         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1261                 sta->sta.uapsd_queues = params->uapsd_queues;
1262                 sta->sta.max_sp = params->max_sp;
1263         }
1264
1265         /* The sender might not have sent the last bit, consider it to be 0 */
1266         if (params->ext_capab_len >= 8) {
1267                 u8 val = (params->ext_capab[7] &
1268                           WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1269
1270                 /* we did get all the bits, take the MSB as well */
1271                 if (params->ext_capab_len >= 9) {
1272                         u8 val_msb = params->ext_capab[8] &
1273                                 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1274                         val_msb <<= 1;
1275                         val |= val_msb;
1276                 }
1277
1278                 switch (val) {
1279                 case 1:
1280                         sta->sta.max_amsdu_subframes = 32;
1281                         break;
1282                 case 2:
1283                         sta->sta.max_amsdu_subframes = 16;
1284                         break;
1285                 case 3:
1286                         sta->sta.max_amsdu_subframes = 8;
1287                         break;
1288                 default:
1289                         sta->sta.max_amsdu_subframes = 0;
1290                 }
1291         }
1292
1293         /*
1294          * cfg80211 validates this (1-2007) and allows setting the AID
1295          * only when creating a new station entry
1296          */
1297         if (params->aid)
1298                 sta->sta.aid = params->aid;
1299
1300         /*
1301          * Some of the following updates would be racy if called on an
1302          * existing station, via ieee80211_change_station(). However,
1303          * all such changes are rejected by cfg80211 except for updates
1304          * changing the supported rates on an existing but not yet used
1305          * TDLS peer.
1306          */
1307
1308         if (params->listen_interval >= 0)
1309                 sta->listen_interval = params->listen_interval;
1310
1311         if (params->supported_rates) {
1312                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1313                                          sband, params->supported_rates,
1314                                          params->supported_rates_len,
1315                                          &sta->sta.supp_rates[sband->band]);
1316         }
1317
1318         if (params->ht_capa)
1319                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1320                                                   params->ht_capa, sta);
1321
1322         /* VHT can override some HT caps such as the A-MSDU max length */
1323         if (params->vht_capa)
1324                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1325                                                     params->vht_capa, sta);
1326
1327         if (params->opmode_notif_used) {
1328                 /* returned value is only needed for rc update, but the
1329                  * rc isn't initialized here yet, so ignore it
1330                  */
1331                 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1332                                               sband->band);
1333         }
1334
1335         if (params->support_p2p_ps >= 0)
1336                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1337
1338         if (ieee80211_vif_is_mesh(&sdata->vif))
1339                 sta_apply_mesh_params(local, sta, params);
1340
1341         /* set the STA state after all sta info from usermode has been set */
1342         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1343             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1344                 ret = sta_apply_auth_flags(local, sta, mask, set);
1345                 if (ret)
1346                         return ret;
1347         }
1348
1349         return 0;
1350 }
1351
1352 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1353                                  const u8 *mac,
1354                                  struct station_parameters *params)
1355 {
1356         struct ieee80211_local *local = wiphy_priv(wiphy);
1357         struct sta_info *sta;
1358         struct ieee80211_sub_if_data *sdata;
1359         int err;
1360
1361         if (params->vlan) {
1362                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1363
1364                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1365                     sdata->vif.type != NL80211_IFTYPE_AP)
1366                         return -EINVAL;
1367         } else
1368                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1369
1370         if (ether_addr_equal(mac, sdata->vif.addr))
1371                 return -EINVAL;
1372
1373         if (is_multicast_ether_addr(mac))
1374                 return -EINVAL;
1375
1376         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1377             sdata->vif.type == NL80211_IFTYPE_STATION &&
1378             !sdata->u.mgd.associated)
1379                 return -EINVAL;
1380
1381         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1382         if (!sta)
1383                 return -ENOMEM;
1384
1385         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1386                 sta->sta.tdls = true;
1387
1388         err = sta_apply_parameters(local, sta, params);
1389         if (err) {
1390                 sta_info_free(local, sta);
1391                 return err;
1392         }
1393
1394         /*
1395          * for TDLS and for unassociated station, rate control should be
1396          * initialized only when rates are known and station is marked
1397          * authorized/associated
1398          */
1399         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1400             test_sta_flag(sta, WLAN_STA_ASSOC))
1401                 rate_control_rate_init(sta);
1402
1403         err = sta_info_insert_rcu(sta);
1404         if (err) {
1405                 rcu_read_unlock();
1406                 return err;
1407         }
1408
1409         rcu_read_unlock();
1410
1411         return 0;
1412 }
1413
1414 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1415                                  struct station_del_parameters *params)
1416 {
1417         struct ieee80211_sub_if_data *sdata;
1418
1419         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1420
1421         if (params->mac)
1422                 return sta_info_destroy_addr_bss(sdata, params->mac);
1423
1424         sta_info_flush(sdata);
1425         return 0;
1426 }
1427
1428 static int ieee80211_change_station(struct wiphy *wiphy,
1429                                     struct net_device *dev, const u8 *mac,
1430                                     struct station_parameters *params)
1431 {
1432         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1433         struct ieee80211_local *local = wiphy_priv(wiphy);
1434         struct sta_info *sta;
1435         struct ieee80211_sub_if_data *vlansdata;
1436         enum cfg80211_station_type statype;
1437         int err;
1438
1439         mutex_lock(&local->sta_mtx);
1440
1441         sta = sta_info_get_bss(sdata, mac);
1442         if (!sta) {
1443                 err = -ENOENT;
1444                 goto out_err;
1445         }
1446
1447         switch (sdata->vif.type) {
1448         case NL80211_IFTYPE_MESH_POINT:
1449                 if (sdata->u.mesh.user_mpm)
1450                         statype = CFG80211_STA_MESH_PEER_USER;
1451                 else
1452                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1453                 break;
1454         case NL80211_IFTYPE_ADHOC:
1455                 statype = CFG80211_STA_IBSS;
1456                 break;
1457         case NL80211_IFTYPE_STATION:
1458                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1459                         statype = CFG80211_STA_AP_STA;
1460                         break;
1461                 }
1462                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1463                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1464                 else
1465                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1466                 break;
1467         case NL80211_IFTYPE_AP:
1468         case NL80211_IFTYPE_AP_VLAN:
1469                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1470                         statype = CFG80211_STA_AP_CLIENT;
1471                 else
1472                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1473                 break;
1474         default:
1475                 err = -EOPNOTSUPP;
1476                 goto out_err;
1477         }
1478
1479         err = cfg80211_check_station_change(wiphy, params, statype);
1480         if (err)
1481                 goto out_err;
1482
1483         if (params->vlan && params->vlan != sta->sdata->dev) {
1484                 bool prev_4addr = false;
1485                 bool new_4addr = false;
1486
1487                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1488
1489                 if (params->vlan->ieee80211_ptr->use_4addr) {
1490                         if (vlansdata->u.vlan.sta) {
1491                                 err = -EBUSY;
1492                                 goto out_err;
1493                         }
1494
1495                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1496                         new_4addr = true;
1497                         __ieee80211_check_fast_rx_iface(vlansdata);
1498                 }
1499
1500                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1501                     sta->sdata->u.vlan.sta) {
1502                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1503                         prev_4addr = true;
1504                 }
1505
1506                 sta->sdata = vlansdata;
1507                 ieee80211_check_fast_xmit(sta);
1508
1509                 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1510                     prev_4addr != new_4addr) {
1511                         if (new_4addr)
1512                                 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1513                         else
1514                                 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1515                 }
1516
1517                 if (sta->sta_state == IEEE80211_STA_AUTHORIZED)
1518                         cfg80211_send_layer2_update(sta->sdata->dev,
1519                                                     sta->sta.addr);
1520         }
1521
1522         err = sta_apply_parameters(local, sta, params);
1523         if (err)
1524                 goto out_err;
1525
1526         mutex_unlock(&local->sta_mtx);
1527
1528         if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1529              sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1530             sta->known_smps_mode != sta->sdata->bss->req_smps &&
1531             test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1532             sta_info_tx_streams(sta) != 1) {
1533                 ht_dbg(sta->sdata,
1534                        "%pM just authorized and MIMO capable - update SMPS\n",
1535                        sta->sta.addr);
1536                 ieee80211_send_smps_action(sta->sdata,
1537                         sta->sdata->bss->req_smps,
1538                         sta->sta.addr,
1539                         sta->sdata->vif.bss_conf.bssid);
1540         }
1541
1542         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1543             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1544                 ieee80211_recalc_ps(local);
1545                 ieee80211_recalc_ps_vif(sdata);
1546         }
1547
1548         return 0;
1549 out_err:
1550         mutex_unlock(&local->sta_mtx);
1551         return err;
1552 }
1553
1554 #ifdef CONFIG_MAC80211_MESH
1555 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1556                                const u8 *dst, const u8 *next_hop)
1557 {
1558         struct ieee80211_sub_if_data *sdata;
1559         struct mesh_path *mpath;
1560         struct sta_info *sta;
1561
1562         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1563
1564         rcu_read_lock();
1565         sta = sta_info_get(sdata, next_hop);
1566         if (!sta) {
1567                 rcu_read_unlock();
1568                 return -ENOENT;
1569         }
1570
1571         mpath = mesh_path_add(sdata, dst);
1572         if (IS_ERR(mpath)) {
1573                 rcu_read_unlock();
1574                 return PTR_ERR(mpath);
1575         }
1576
1577         mesh_path_fix_nexthop(mpath, sta);
1578
1579         rcu_read_unlock();
1580         return 0;
1581 }
1582
1583 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1584                                const u8 *dst)
1585 {
1586         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1587
1588         if (dst)
1589                 return mesh_path_del(sdata, dst);
1590
1591         mesh_path_flush_by_iface(sdata);
1592         return 0;
1593 }
1594
1595 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1596                                   const u8 *dst, const u8 *next_hop)
1597 {
1598         struct ieee80211_sub_if_data *sdata;
1599         struct mesh_path *mpath;
1600         struct sta_info *sta;
1601
1602         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1603
1604         rcu_read_lock();
1605
1606         sta = sta_info_get(sdata, next_hop);
1607         if (!sta) {
1608                 rcu_read_unlock();
1609                 return -ENOENT;
1610         }
1611
1612         mpath = mesh_path_lookup(sdata, dst);
1613         if (!mpath) {
1614                 rcu_read_unlock();
1615                 return -ENOENT;
1616         }
1617
1618         mesh_path_fix_nexthop(mpath, sta);
1619
1620         rcu_read_unlock();
1621         return 0;
1622 }
1623
1624 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1625                             struct mpath_info *pinfo)
1626 {
1627         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1628
1629         if (next_hop_sta)
1630                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1631         else
1632                 eth_zero_addr(next_hop);
1633
1634         memset(pinfo, 0, sizeof(*pinfo));
1635
1636         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1637
1638         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1639                         MPATH_INFO_SN |
1640                         MPATH_INFO_METRIC |
1641                         MPATH_INFO_EXPTIME |
1642                         MPATH_INFO_DISCOVERY_TIMEOUT |
1643                         MPATH_INFO_DISCOVERY_RETRIES |
1644                         MPATH_INFO_FLAGS;
1645
1646         pinfo->frame_qlen = mpath->frame_queue.qlen;
1647         pinfo->sn = mpath->sn;
1648         pinfo->metric = mpath->metric;
1649         if (time_before(jiffies, mpath->exp_time))
1650                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1651         pinfo->discovery_timeout =
1652                         jiffies_to_msecs(mpath->discovery_timeout);
1653         pinfo->discovery_retries = mpath->discovery_retries;
1654         if (mpath->flags & MESH_PATH_ACTIVE)
1655                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1656         if (mpath->flags & MESH_PATH_RESOLVING)
1657                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1658         if (mpath->flags & MESH_PATH_SN_VALID)
1659                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1660         if (mpath->flags & MESH_PATH_FIXED)
1661                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1662         if (mpath->flags & MESH_PATH_RESOLVED)
1663                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1664 }
1665
1666 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1667                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1668
1669 {
1670         struct ieee80211_sub_if_data *sdata;
1671         struct mesh_path *mpath;
1672
1673         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1674
1675         rcu_read_lock();
1676         mpath = mesh_path_lookup(sdata, dst);
1677         if (!mpath) {
1678                 rcu_read_unlock();
1679                 return -ENOENT;
1680         }
1681         memcpy(dst, mpath->dst, ETH_ALEN);
1682         mpath_set_pinfo(mpath, next_hop, pinfo);
1683         rcu_read_unlock();
1684         return 0;
1685 }
1686
1687 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1688                                 int idx, u8 *dst, u8 *next_hop,
1689                                 struct mpath_info *pinfo)
1690 {
1691         struct ieee80211_sub_if_data *sdata;
1692         struct mesh_path *mpath;
1693
1694         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1695
1696         rcu_read_lock();
1697         mpath = mesh_path_lookup_by_idx(sdata, idx);
1698         if (!mpath) {
1699                 rcu_read_unlock();
1700                 return -ENOENT;
1701         }
1702         memcpy(dst, mpath->dst, ETH_ALEN);
1703         mpath_set_pinfo(mpath, next_hop, pinfo);
1704         rcu_read_unlock();
1705         return 0;
1706 }
1707
1708 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1709                           struct mpath_info *pinfo)
1710 {
1711         memset(pinfo, 0, sizeof(*pinfo));
1712         memcpy(mpp, mpath->mpp, ETH_ALEN);
1713
1714         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1715 }
1716
1717 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1718                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1719
1720 {
1721         struct ieee80211_sub_if_data *sdata;
1722         struct mesh_path *mpath;
1723
1724         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1725
1726         rcu_read_lock();
1727         mpath = mpp_path_lookup(sdata, dst);
1728         if (!mpath) {
1729                 rcu_read_unlock();
1730                 return -ENOENT;
1731         }
1732         memcpy(dst, mpath->dst, ETH_ALEN);
1733         mpp_set_pinfo(mpath, mpp, pinfo);
1734         rcu_read_unlock();
1735         return 0;
1736 }
1737
1738 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1739                               int idx, u8 *dst, u8 *mpp,
1740                               struct mpath_info *pinfo)
1741 {
1742         struct ieee80211_sub_if_data *sdata;
1743         struct mesh_path *mpath;
1744
1745         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1746
1747         rcu_read_lock();
1748         mpath = mpp_path_lookup_by_idx(sdata, idx);
1749         if (!mpath) {
1750                 rcu_read_unlock();
1751                 return -ENOENT;
1752         }
1753         memcpy(dst, mpath->dst, ETH_ALEN);
1754         mpp_set_pinfo(mpath, mpp, pinfo);
1755         rcu_read_unlock();
1756         return 0;
1757 }
1758
1759 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1760                                 struct net_device *dev,
1761                                 struct mesh_config *conf)
1762 {
1763         struct ieee80211_sub_if_data *sdata;
1764         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1765
1766         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1767         return 0;
1768 }
1769
1770 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1771 {
1772         return (mask >> (parm-1)) & 0x1;
1773 }
1774
1775 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1776                 const struct mesh_setup *setup)
1777 {
1778         u8 *new_ie;
1779         const u8 *old_ie;
1780         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1781                                         struct ieee80211_sub_if_data, u.mesh);
1782
1783         /* allocate information elements */
1784         new_ie = NULL;
1785         old_ie = ifmsh->ie;
1786
1787         if (setup->ie_len) {
1788                 new_ie = kmemdup(setup->ie, setup->ie_len,
1789                                 GFP_KERNEL);
1790                 if (!new_ie)
1791                         return -ENOMEM;
1792         }
1793         ifmsh->ie_len = setup->ie_len;
1794         ifmsh->ie = new_ie;
1795         kfree(old_ie);
1796
1797         /* now copy the rest of the setup parameters */
1798         ifmsh->mesh_id_len = setup->mesh_id_len;
1799         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1800         ifmsh->mesh_sp_id = setup->sync_method;
1801         ifmsh->mesh_pp_id = setup->path_sel_proto;
1802         ifmsh->mesh_pm_id = setup->path_metric;
1803         ifmsh->user_mpm = setup->user_mpm;
1804         ifmsh->mesh_auth_id = setup->auth_id;
1805         ifmsh->security = IEEE80211_MESH_SEC_NONE;
1806         if (setup->is_authenticated)
1807                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1808         if (setup->is_secure)
1809                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1810
1811         /* mcast rate setting in Mesh Node */
1812         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1813                                                 sizeof(setup->mcast_rate));
1814         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1815
1816         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1817         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1818
1819         return 0;
1820 }
1821
1822 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1823                                         struct net_device *dev, u32 mask,
1824                                         const struct mesh_config *nconf)
1825 {
1826         struct mesh_config *conf;
1827         struct ieee80211_sub_if_data *sdata;
1828         struct ieee80211_if_mesh *ifmsh;
1829
1830         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1831         ifmsh = &sdata->u.mesh;
1832
1833         /* Set the config options which we are interested in setting */
1834         conf = &(sdata->u.mesh.mshcfg);
1835         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1836                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1837         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1838                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1839         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1840                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1841         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1842                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1843         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1844                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1845         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1846                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1847         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1848                 conf->element_ttl = nconf->element_ttl;
1849         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1850                 if (ifmsh->user_mpm)
1851                         return -EBUSY;
1852                 conf->auto_open_plinks = nconf->auto_open_plinks;
1853         }
1854         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1855                 conf->dot11MeshNbrOffsetMaxNeighbor =
1856                         nconf->dot11MeshNbrOffsetMaxNeighbor;
1857         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1858                 conf->dot11MeshHWMPmaxPREQretries =
1859                         nconf->dot11MeshHWMPmaxPREQretries;
1860         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1861                 conf->path_refresh_time = nconf->path_refresh_time;
1862         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1863                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1864         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1865                 conf->dot11MeshHWMPactivePathTimeout =
1866                         nconf->dot11MeshHWMPactivePathTimeout;
1867         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1868                 conf->dot11MeshHWMPpreqMinInterval =
1869                         nconf->dot11MeshHWMPpreqMinInterval;
1870         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1871                 conf->dot11MeshHWMPperrMinInterval =
1872                         nconf->dot11MeshHWMPperrMinInterval;
1873         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1874                            mask))
1875                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1876                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1877         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1878                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1879                 ieee80211_mesh_root_setup(ifmsh);
1880         }
1881         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1882                 /* our current gate announcement implementation rides on root
1883                  * announcements, so require this ifmsh to also be a root node
1884                  * */
1885                 if (nconf->dot11MeshGateAnnouncementProtocol &&
1886                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1887                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1888                         ieee80211_mesh_root_setup(ifmsh);
1889                 }
1890                 conf->dot11MeshGateAnnouncementProtocol =
1891                         nconf->dot11MeshGateAnnouncementProtocol;
1892         }
1893         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1894                 conf->dot11MeshHWMPRannInterval =
1895                         nconf->dot11MeshHWMPRannInterval;
1896         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1897                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1898         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1899                 /* our RSSI threshold implementation is supported only for
1900                  * devices that report signal in dBm.
1901                  */
1902                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
1903                         return -ENOTSUPP;
1904                 conf->rssi_threshold = nconf->rssi_threshold;
1905         }
1906         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1907                 conf->ht_opmode = nconf->ht_opmode;
1908                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1909                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1910         }
1911         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1912                 conf->dot11MeshHWMPactivePathToRootTimeout =
1913                         nconf->dot11MeshHWMPactivePathToRootTimeout;
1914         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1915                 conf->dot11MeshHWMProotInterval =
1916                         nconf->dot11MeshHWMProotInterval;
1917         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1918                 conf->dot11MeshHWMPconfirmationInterval =
1919                         nconf->dot11MeshHWMPconfirmationInterval;
1920         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1921                 conf->power_mode = nconf->power_mode;
1922                 ieee80211_mps_local_status_update(sdata);
1923         }
1924         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1925                 conf->dot11MeshAwakeWindowDuration =
1926                         nconf->dot11MeshAwakeWindowDuration;
1927         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1928                 conf->plink_timeout = nconf->plink_timeout;
1929         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1930         return 0;
1931 }
1932
1933 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1934                                const struct mesh_config *conf,
1935                                const struct mesh_setup *setup)
1936 {
1937         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1938         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1939         int err;
1940
1941         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1942         err = copy_mesh_setup(ifmsh, setup);
1943         if (err)
1944                 return err;
1945
1946         /* can mesh use other SMPS modes? */
1947         sdata->smps_mode = IEEE80211_SMPS_OFF;
1948         sdata->needed_rx_chains = sdata->local->rx_chains;
1949
1950         mutex_lock(&sdata->local->mtx);
1951         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1952                                         IEEE80211_CHANCTX_SHARED);
1953         mutex_unlock(&sdata->local->mtx);
1954         if (err)
1955                 return err;
1956
1957         return ieee80211_start_mesh(sdata);
1958 }
1959
1960 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1961 {
1962         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1963
1964         ieee80211_stop_mesh(sdata);
1965         mutex_lock(&sdata->local->mtx);
1966         ieee80211_vif_release_channel(sdata);
1967         kfree(sdata->u.mesh.ie);
1968         mutex_unlock(&sdata->local->mtx);
1969
1970         return 0;
1971 }
1972 #endif
1973
1974 static int ieee80211_change_bss(struct wiphy *wiphy,
1975                                 struct net_device *dev,
1976                                 struct bss_parameters *params)
1977 {
1978         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1979         struct ieee80211_supported_band *sband;
1980         u32 changed = 0;
1981
1982         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1983                 return -ENOENT;
1984
1985         sband = ieee80211_get_sband(sdata);
1986         if (!sband)
1987                 return -EINVAL;
1988
1989         if (params->use_cts_prot >= 0) {
1990                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1991                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1992         }
1993         if (params->use_short_preamble >= 0) {
1994                 sdata->vif.bss_conf.use_short_preamble =
1995                         params->use_short_preamble;
1996                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1997         }
1998
1999         if (!sdata->vif.bss_conf.use_short_slot &&
2000             sband->band == NL80211_BAND_5GHZ) {
2001                 sdata->vif.bss_conf.use_short_slot = true;
2002                 changed |= BSS_CHANGED_ERP_SLOT;
2003         }
2004
2005         if (params->use_short_slot_time >= 0) {
2006                 sdata->vif.bss_conf.use_short_slot =
2007                         params->use_short_slot_time;
2008                 changed |= BSS_CHANGED_ERP_SLOT;
2009         }
2010
2011         if (params->basic_rates) {
2012                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2013                                          wiphy->bands[sband->band],
2014                                          params->basic_rates,
2015                                          params->basic_rates_len,
2016                                          &sdata->vif.bss_conf.basic_rates);
2017                 changed |= BSS_CHANGED_BASIC_RATES;
2018         }
2019
2020         if (params->ap_isolate >= 0) {
2021                 if (params->ap_isolate)
2022                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2023                 else
2024                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2025                 ieee80211_check_fast_rx_iface(sdata);
2026         }
2027
2028         if (params->ht_opmode >= 0) {
2029                 sdata->vif.bss_conf.ht_operation_mode =
2030                         (u16) params->ht_opmode;
2031                 changed |= BSS_CHANGED_HT;
2032         }
2033
2034         if (params->p2p_ctwindow >= 0) {
2035                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2036                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2037                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2038                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2039                 changed |= BSS_CHANGED_P2P_PS;
2040         }
2041
2042         if (params->p2p_opp_ps > 0) {
2043                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2044                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2045                 changed |= BSS_CHANGED_P2P_PS;
2046         } else if (params->p2p_opp_ps == 0) {
2047                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2048                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2049                 changed |= BSS_CHANGED_P2P_PS;
2050         }
2051
2052         ieee80211_bss_info_change_notify(sdata, changed);
2053
2054         return 0;
2055 }
2056
2057 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2058                                     struct net_device *dev,
2059                                     struct ieee80211_txq_params *params)
2060 {
2061         struct ieee80211_local *local = wiphy_priv(wiphy);
2062         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2063         struct ieee80211_tx_queue_params p;
2064
2065         if (!local->ops->conf_tx)
2066                 return -EOPNOTSUPP;
2067
2068         if (local->hw.queues < IEEE80211_NUM_ACS)
2069                 return -EOPNOTSUPP;
2070
2071         memset(&p, 0, sizeof(p));
2072         p.aifs = params->aifs;
2073         p.cw_max = params->cwmax;
2074         p.cw_min = params->cwmin;
2075         p.txop = params->txop;
2076
2077         /*
2078          * Setting tx queue params disables u-apsd because it's only
2079          * called in master mode.
2080          */
2081         p.uapsd = false;
2082
2083         sdata->tx_conf[params->ac] = p;
2084         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2085                 wiphy_debug(local->hw.wiphy,
2086                             "failed to set TX queue parameters for AC %d\n",
2087                             params->ac);
2088                 return -EINVAL;
2089         }
2090
2091         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2092
2093         return 0;
2094 }
2095
2096 #ifdef CONFIG_PM
2097 static int ieee80211_suspend(struct wiphy *wiphy,
2098                              struct cfg80211_wowlan *wowlan)
2099 {
2100         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2101 }
2102
2103 static int ieee80211_resume(struct wiphy *wiphy)
2104 {
2105         return __ieee80211_resume(wiphy_priv(wiphy));
2106 }
2107 #else
2108 #define ieee80211_suspend NULL
2109 #define ieee80211_resume NULL
2110 #endif
2111
2112 static int ieee80211_scan(struct wiphy *wiphy,
2113                           struct cfg80211_scan_request *req)
2114 {
2115         struct ieee80211_sub_if_data *sdata;
2116
2117         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2118
2119         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2120         case NL80211_IFTYPE_STATION:
2121         case NL80211_IFTYPE_ADHOC:
2122         case NL80211_IFTYPE_MESH_POINT:
2123         case NL80211_IFTYPE_P2P_CLIENT:
2124         case NL80211_IFTYPE_P2P_DEVICE:
2125                 break;
2126         case NL80211_IFTYPE_P2P_GO:
2127                 if (sdata->local->ops->hw_scan)
2128                         break;
2129                 /*
2130                  * FIXME: implement NoA while scanning in software,
2131                  * for now fall through to allow scanning only when
2132                  * beaconing hasn't been configured yet
2133                  */
2134         case NL80211_IFTYPE_AP:
2135                 /*
2136                  * If the scan has been forced (and the driver supports
2137                  * forcing), don't care about being beaconing already.
2138                  * This will create problems to the attached stations (e.g. all
2139                  * the  frames sent while scanning on other channel will be
2140                  * lost)
2141                  */
2142                 if (sdata->u.ap.beacon &&
2143                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2144                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2145                         return -EOPNOTSUPP;
2146                 break;
2147         case NL80211_IFTYPE_NAN:
2148         default:
2149                 return -EOPNOTSUPP;
2150         }
2151
2152         return ieee80211_request_scan(sdata, req);
2153 }
2154
2155 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2156 {
2157         ieee80211_scan_cancel(wiphy_priv(wiphy));
2158 }
2159
2160 static int
2161 ieee80211_sched_scan_start(struct wiphy *wiphy,
2162                            struct net_device *dev,
2163                            struct cfg80211_sched_scan_request *req)
2164 {
2165         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2166
2167         if (!sdata->local->ops->sched_scan_start)
2168                 return -EOPNOTSUPP;
2169
2170         return ieee80211_request_sched_scan_start(sdata, req);
2171 }
2172
2173 static int
2174 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2175 {
2176         struct ieee80211_local *local = wiphy_priv(wiphy);
2177
2178         if (!local->ops->sched_scan_stop)
2179                 return -EOPNOTSUPP;
2180
2181         return ieee80211_request_sched_scan_stop(local);
2182 }
2183
2184 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2185                           struct cfg80211_auth_request *req)
2186 {
2187         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2188 }
2189
2190 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2191                            struct cfg80211_assoc_request *req)
2192 {
2193         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2194 }
2195
2196 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2197                             struct cfg80211_deauth_request *req)
2198 {
2199         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2200 }
2201
2202 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2203                               struct cfg80211_disassoc_request *req)
2204 {
2205         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2206 }
2207
2208 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2209                                struct cfg80211_ibss_params *params)
2210 {
2211         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2212 }
2213
2214 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2215 {
2216         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2217 }
2218
2219 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2220                               struct ocb_setup *setup)
2221 {
2222         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2223 }
2224
2225 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2226 {
2227         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2228 }
2229
2230 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2231                                     int rate[NUM_NL80211_BANDS])
2232 {
2233         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2234
2235         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2236                sizeof(int) * NUM_NL80211_BANDS);
2237
2238         return 0;
2239 }
2240
2241 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2242 {
2243         struct ieee80211_local *local = wiphy_priv(wiphy);
2244         int err;
2245
2246         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2247                 ieee80211_check_fast_xmit_all(local);
2248
2249                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2250
2251                 if (err) {
2252                         ieee80211_check_fast_xmit_all(local);
2253                         return err;
2254                 }
2255         }
2256
2257         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2258             (changed & WIPHY_PARAM_DYN_ACK)) {
2259                 s16 coverage_class;
2260
2261                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2262                                         wiphy->coverage_class : -1;
2263                 err = drv_set_coverage_class(local, coverage_class);
2264
2265                 if (err)
2266                         return err;
2267         }
2268
2269         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2270                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2271
2272                 if (err)
2273                         return err;
2274         }
2275
2276         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2277                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2278                         return -EINVAL;
2279                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2280         }
2281         if (changed & WIPHY_PARAM_RETRY_LONG) {
2282                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2283                         return -EINVAL;
2284                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2285         }
2286         if (changed &
2287             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2288                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2289
2290         return 0;
2291 }
2292
2293 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2294                                   struct wireless_dev *wdev,
2295                                   enum nl80211_tx_power_setting type, int mbm)
2296 {
2297         struct ieee80211_local *local = wiphy_priv(wiphy);
2298         struct ieee80211_sub_if_data *sdata;
2299         enum nl80211_tx_power_setting txp_type = type;
2300         bool update_txp_type = false;
2301         bool has_monitor = false;
2302
2303         if (wdev) {
2304                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2305
2306                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2307                         sdata = rtnl_dereference(local->monitor_sdata);
2308                         if (!sdata)
2309                                 return -EOPNOTSUPP;
2310                 }
2311
2312                 switch (type) {
2313                 case NL80211_TX_POWER_AUTOMATIC:
2314                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2315                         txp_type = NL80211_TX_POWER_LIMITED;
2316                         break;
2317                 case NL80211_TX_POWER_LIMITED:
2318                 case NL80211_TX_POWER_FIXED:
2319                         if (mbm < 0 || (mbm % 100))
2320                                 return -EOPNOTSUPP;
2321                         sdata->user_power_level = MBM_TO_DBM(mbm);
2322                         break;
2323                 }
2324
2325                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2326                         update_txp_type = true;
2327                         sdata->vif.bss_conf.txpower_type = txp_type;
2328                 }
2329
2330                 ieee80211_recalc_txpower(sdata, update_txp_type);
2331
2332                 return 0;
2333         }
2334
2335         switch (type) {
2336         case NL80211_TX_POWER_AUTOMATIC:
2337                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2338                 txp_type = NL80211_TX_POWER_LIMITED;
2339                 break;
2340         case NL80211_TX_POWER_LIMITED:
2341         case NL80211_TX_POWER_FIXED:
2342                 if (mbm < 0 || (mbm % 100))
2343                         return -EOPNOTSUPP;
2344                 local->user_power_level = MBM_TO_DBM(mbm);
2345                 break;
2346         }
2347
2348         mutex_lock(&local->iflist_mtx);
2349         list_for_each_entry(sdata, &local->interfaces, list) {
2350                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2351                         has_monitor = true;
2352                         continue;
2353                 }
2354                 sdata->user_power_level = local->user_power_level;
2355                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2356                         update_txp_type = true;
2357                 sdata->vif.bss_conf.txpower_type = txp_type;
2358         }
2359         list_for_each_entry(sdata, &local->interfaces, list) {
2360                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2361                         continue;
2362                 ieee80211_recalc_txpower(sdata, update_txp_type);
2363         }
2364         mutex_unlock(&local->iflist_mtx);
2365
2366         if (has_monitor) {
2367                 sdata = rtnl_dereference(local->monitor_sdata);
2368                 if (sdata) {
2369                         sdata->user_power_level = local->user_power_level;
2370                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2371                                 update_txp_type = true;
2372                         sdata->vif.bss_conf.txpower_type = txp_type;
2373
2374                         ieee80211_recalc_txpower(sdata, update_txp_type);
2375                 }
2376         }
2377
2378         return 0;
2379 }
2380
2381 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2382                                   struct wireless_dev *wdev,
2383                                   int *dbm)
2384 {
2385         struct ieee80211_local *local = wiphy_priv(wiphy);
2386         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2387
2388         if (local->ops->get_txpower)
2389                 return drv_get_txpower(local, sdata, dbm);
2390
2391         if (!local->use_chanctx)
2392                 *dbm = local->hw.conf.power_level;
2393         else
2394                 *dbm = sdata->vif.bss_conf.txpower;
2395
2396         return 0;
2397 }
2398
2399 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2400                                   const u8 *addr)
2401 {
2402         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2403
2404         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2405
2406         return 0;
2407 }
2408
2409 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2410 {
2411         struct ieee80211_local *local = wiphy_priv(wiphy);
2412
2413         drv_rfkill_poll(local);
2414 }
2415
2416 #ifdef CONFIG_NL80211_TESTMODE
2417 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2418                                   struct wireless_dev *wdev,
2419                                   void *data, int len)
2420 {
2421         struct ieee80211_local *local = wiphy_priv(wiphy);
2422         struct ieee80211_vif *vif = NULL;
2423
2424         if (!local->ops->testmode_cmd)
2425                 return -EOPNOTSUPP;
2426
2427         if (wdev) {
2428                 struct ieee80211_sub_if_data *sdata;
2429
2430                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2431                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2432                         vif = &sdata->vif;
2433         }
2434
2435         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2436 }
2437
2438 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2439                                    struct sk_buff *skb,
2440                                    struct netlink_callback *cb,
2441                                    void *data, int len)
2442 {
2443         struct ieee80211_local *local = wiphy_priv(wiphy);
2444
2445         if (!local->ops->testmode_dump)
2446                 return -EOPNOTSUPP;
2447
2448         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2449 }
2450 #endif
2451
2452 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2453                                 enum ieee80211_smps_mode smps_mode)
2454 {
2455         struct sta_info *sta;
2456         enum ieee80211_smps_mode old_req;
2457
2458         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2459                 return -EINVAL;
2460
2461         if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2462                 return 0;
2463
2464         old_req = sdata->u.ap.req_smps;
2465         sdata->u.ap.req_smps = smps_mode;
2466
2467         /* AUTOMATIC doesn't mean much for AP - don't allow it */
2468         if (old_req == smps_mode ||
2469             smps_mode == IEEE80211_SMPS_AUTOMATIC)
2470                 return 0;
2471
2472          /* If no associated stations, there's no need to do anything */
2473         if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2474                 sdata->smps_mode = smps_mode;
2475                 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2476                 return 0;
2477         }
2478
2479         ht_dbg(sdata,
2480                "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2481                smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2482
2483         mutex_lock(&sdata->local->sta_mtx);
2484         list_for_each_entry(sta, &sdata->local->sta_list, list) {
2485                 /*
2486                  * Only stations associated to our AP and
2487                  * associated VLANs
2488                  */
2489                 if (sta->sdata->bss != &sdata->u.ap)
2490                         continue;
2491
2492                 /* This station doesn't support MIMO - skip it */
2493                 if (sta_info_tx_streams(sta) == 1)
2494                         continue;
2495
2496                 /*
2497                  * Don't wake up a STA just to send the action frame
2498                  * unless we are getting more restrictive.
2499                  */
2500                 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2501                     !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2502                                                    smps_mode)) {
2503                         ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2504                                sta->sta.addr);
2505                         continue;
2506                 }
2507
2508                 /*
2509                  * If the STA is not authorized, wait until it gets
2510                  * authorized and the action frame will be sent then.
2511                  */
2512                 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2513                         continue;
2514
2515                 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2516                 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2517                                            sdata->vif.bss_conf.bssid);
2518         }
2519         mutex_unlock(&sdata->local->sta_mtx);
2520
2521         sdata->smps_mode = smps_mode;
2522         ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2523
2524         return 0;
2525 }
2526
2527 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2528                                  enum ieee80211_smps_mode smps_mode)
2529 {
2530         const u8 *ap;
2531         enum ieee80211_smps_mode old_req;
2532         int err;
2533         struct sta_info *sta;
2534         bool tdls_peer_found = false;
2535
2536         lockdep_assert_held(&sdata->wdev.mtx);
2537
2538         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2539                 return -EINVAL;
2540
2541         old_req = sdata->u.mgd.req_smps;
2542         sdata->u.mgd.req_smps = smps_mode;
2543
2544         if (old_req == smps_mode &&
2545             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2546                 return 0;
2547
2548         /*
2549          * If not associated, or current association is not an HT
2550          * association, there's no need to do anything, just store
2551          * the new value until we associate.
2552          */
2553         if (!sdata->u.mgd.associated ||
2554             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2555                 return 0;
2556
2557         ap = sdata->u.mgd.associated->bssid;
2558
2559         rcu_read_lock();
2560         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2561                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2562                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2563                         continue;
2564
2565                 tdls_peer_found = true;
2566                 break;
2567         }
2568         rcu_read_unlock();
2569
2570         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2571                 if (tdls_peer_found || !sdata->u.mgd.powersave)
2572                         smps_mode = IEEE80211_SMPS_OFF;
2573                 else
2574                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2575         }
2576
2577         /* send SM PS frame to AP */
2578         err = ieee80211_send_smps_action(sdata, smps_mode,
2579                                          ap, ap);
2580         if (err)
2581                 sdata->u.mgd.req_smps = old_req;
2582         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2583                 ieee80211_teardown_tdls_peers(sdata);
2584
2585         return err;
2586 }
2587
2588 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2589                                     bool enabled, int timeout)
2590 {
2591         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2592         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2593
2594         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2595                 return -EOPNOTSUPP;
2596
2597         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2598                 return -EOPNOTSUPP;
2599
2600         if (enabled == sdata->u.mgd.powersave &&
2601             timeout == local->dynamic_ps_forced_timeout)
2602                 return 0;
2603
2604         sdata->u.mgd.powersave = enabled;
2605         local->dynamic_ps_forced_timeout = timeout;
2606
2607         /* no change, but if automatic follow powersave */
2608         sdata_lock(sdata);
2609         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2610         sdata_unlock(sdata);
2611
2612         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2613                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2614
2615         ieee80211_recalc_ps(local);
2616         ieee80211_recalc_ps_vif(sdata);
2617
2618         return 0;
2619 }
2620
2621 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2622                                          struct net_device *dev,
2623                                          s32 rssi_thold, u32 rssi_hyst)
2624 {
2625         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2626         struct ieee80211_vif *vif = &sdata->vif;
2627         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2628
2629         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2630             rssi_hyst == bss_conf->cqm_rssi_hyst)
2631                 return 0;
2632
2633         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2634             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2635                 return -EOPNOTSUPP;
2636
2637         bss_conf->cqm_rssi_thold = rssi_thold;
2638         bss_conf->cqm_rssi_hyst = rssi_hyst;
2639         sdata->u.mgd.last_cqm_event_signal = 0;
2640
2641         /* tell the driver upon association, unless already associated */
2642         if (sdata->u.mgd.associated &&
2643             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2644                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2645
2646         return 0;
2647 }
2648
2649 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2650                                       struct net_device *dev,
2651                                       const u8 *addr,
2652                                       const struct cfg80211_bitrate_mask *mask)
2653 {
2654         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2655         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2656         int i, ret;
2657
2658         if (!ieee80211_sdata_running(sdata))
2659                 return -ENETDOWN;
2660
2661         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2662                 ret = drv_set_bitrate_mask(local, sdata, mask);
2663                 if (ret)
2664                         return ret;
2665         }
2666
2667         for (i = 0; i < NUM_NL80211_BANDS; i++) {
2668                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2669                 int j;
2670
2671                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2672                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2673                        sizeof(mask->control[i].ht_mcs));
2674                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2675                        mask->control[i].vht_mcs,
2676                        sizeof(mask->control[i].vht_mcs));
2677
2678                 sdata->rc_has_mcs_mask[i] = false;
2679                 sdata->rc_has_vht_mcs_mask[i] = false;
2680                 if (!sband)
2681                         continue;
2682
2683                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2684                         if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
2685                                 sdata->rc_has_mcs_mask[i] = true;
2686                                 break;
2687                         }
2688                 }
2689
2690                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2691                         if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
2692                                 sdata->rc_has_vht_mcs_mask[i] = true;
2693                                 break;
2694                         }
2695                 }
2696         }
2697
2698         return 0;
2699 }
2700
2701 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2702                                            struct net_device *dev,
2703                                            struct cfg80211_chan_def *chandef,
2704                                            u32 cac_time_ms)
2705 {
2706         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2707         struct ieee80211_local *local = sdata->local;
2708         int err;
2709
2710         mutex_lock(&local->mtx);
2711         if (!list_empty(&local->roc_list) || local->scanning) {
2712                 err = -EBUSY;
2713                 goto out_unlock;
2714         }
2715
2716         /* whatever, but channel contexts should not complain about that one */
2717         sdata->smps_mode = IEEE80211_SMPS_OFF;
2718         sdata->needed_rx_chains = local->rx_chains;
2719
2720         err = ieee80211_vif_use_channel(sdata, chandef,
2721                                         IEEE80211_CHANCTX_SHARED);
2722         if (err)
2723                 goto out_unlock;
2724
2725         ieee80211_queue_delayed_work(&sdata->local->hw,
2726                                      &sdata->dfs_cac_timer_work,
2727                                      msecs_to_jiffies(cac_time_ms));
2728
2729  out_unlock:
2730         mutex_unlock(&local->mtx);
2731         return err;
2732 }
2733
2734 static struct cfg80211_beacon_data *
2735 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2736 {
2737         struct cfg80211_beacon_data *new_beacon;
2738         u8 *pos;
2739         int len;
2740
2741         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2742               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2743               beacon->probe_resp_len;
2744
2745         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2746         if (!new_beacon)
2747                 return NULL;
2748
2749         pos = (u8 *)(new_beacon + 1);
2750         if (beacon->head_len) {
2751                 new_beacon->head_len = beacon->head_len;
2752                 new_beacon->head = pos;
2753                 memcpy(pos, beacon->head, beacon->head_len);
2754                 pos += beacon->head_len;
2755         }
2756         if (beacon->tail_len) {
2757                 new_beacon->tail_len = beacon->tail_len;
2758                 new_beacon->tail = pos;
2759                 memcpy(pos, beacon->tail, beacon->tail_len);
2760                 pos += beacon->tail_len;
2761         }
2762         if (beacon->beacon_ies_len) {
2763                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2764                 new_beacon->beacon_ies = pos;
2765                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2766                 pos += beacon->beacon_ies_len;
2767         }
2768         if (beacon->proberesp_ies_len) {
2769                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2770                 new_beacon->proberesp_ies = pos;
2771                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2772                 pos += beacon->proberesp_ies_len;
2773         }
2774         if (beacon->assocresp_ies_len) {
2775                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2776                 new_beacon->assocresp_ies = pos;
2777                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2778                 pos += beacon->assocresp_ies_len;
2779         }
2780         if (beacon->probe_resp_len) {
2781                 new_beacon->probe_resp_len = beacon->probe_resp_len;
2782                 new_beacon->probe_resp = pos;
2783                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2784                 pos += beacon->probe_resp_len;
2785         }
2786
2787         return new_beacon;
2788 }
2789
2790 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2791 {
2792         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2793
2794         ieee80211_queue_work(&sdata->local->hw,
2795                              &sdata->csa_finalize_work);
2796 }
2797 EXPORT_SYMBOL(ieee80211_csa_finish);
2798
2799 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2800                                           u32 *changed)
2801 {
2802         int err;
2803
2804         switch (sdata->vif.type) {
2805         case NL80211_IFTYPE_AP:
2806                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2807                                               NULL);
2808                 kfree(sdata->u.ap.next_beacon);
2809                 sdata->u.ap.next_beacon = NULL;
2810
2811                 if (err < 0)
2812                         return err;
2813                 *changed |= err;
2814                 break;
2815         case NL80211_IFTYPE_ADHOC:
2816                 err = ieee80211_ibss_finish_csa(sdata);
2817                 if (err < 0)
2818                         return err;
2819                 *changed |= err;
2820                 break;
2821 #ifdef CONFIG_MAC80211_MESH
2822         case NL80211_IFTYPE_MESH_POINT:
2823                 err = ieee80211_mesh_finish_csa(sdata);
2824                 if (err < 0)
2825                         return err;
2826                 *changed |= err;
2827                 break;
2828 #endif
2829         default:
2830                 WARN_ON(1);
2831                 return -EINVAL;
2832         }
2833
2834         return 0;
2835 }
2836
2837 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2838 {
2839         struct ieee80211_local *local = sdata->local;
2840         u32 changed = 0;
2841         int err;
2842
2843         sdata_assert_lock(sdata);
2844         lockdep_assert_held(&local->mtx);
2845         lockdep_assert_held(&local->chanctx_mtx);
2846
2847         /*
2848          * using reservation isn't immediate as it may be deferred until later
2849          * with multi-vif. once reservation is complete it will re-schedule the
2850          * work with no reserved_chanctx so verify chandef to check if it
2851          * completed successfully
2852          */
2853
2854         if (sdata->reserved_chanctx) {
2855                 /*
2856                  * with multi-vif csa driver may call ieee80211_csa_finish()
2857                  * many times while waiting for other interfaces to use their
2858                  * reservations
2859                  */
2860                 if (sdata->reserved_ready)
2861                         return 0;
2862
2863                 return ieee80211_vif_use_reserved_context(sdata);
2864         }
2865
2866         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2867                                         &sdata->csa_chandef))
2868                 return -EINVAL;
2869
2870         sdata->vif.csa_active = false;
2871
2872         err = ieee80211_set_after_csa_beacon(sdata, &changed);
2873         if (err)
2874                 return err;
2875
2876         ieee80211_bss_info_change_notify(sdata, changed);
2877
2878         if (sdata->csa_block_tx) {
2879                 ieee80211_wake_vif_queues(local, sdata,
2880                                           IEEE80211_QUEUE_STOP_REASON_CSA);
2881                 sdata->csa_block_tx = false;
2882         }
2883
2884         err = drv_post_channel_switch(sdata);
2885         if (err)
2886                 return err;
2887
2888         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2889
2890         return 0;
2891 }
2892
2893 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2894 {
2895         if (__ieee80211_csa_finalize(sdata)) {
2896                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2897                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2898                                     GFP_KERNEL);
2899         }
2900 }
2901
2902 void ieee80211_csa_finalize_work(struct work_struct *work)
2903 {
2904         struct ieee80211_sub_if_data *sdata =
2905                 container_of(work, struct ieee80211_sub_if_data,
2906                              csa_finalize_work);
2907         struct ieee80211_local *local = sdata->local;
2908
2909         sdata_lock(sdata);
2910         mutex_lock(&local->mtx);
2911         mutex_lock(&local->chanctx_mtx);
2912
2913         /* AP might have been stopped while waiting for the lock. */
2914         if (!sdata->vif.csa_active)
2915                 goto unlock;
2916
2917         if (!ieee80211_sdata_running(sdata))
2918                 goto unlock;
2919
2920         ieee80211_csa_finalize(sdata);
2921
2922 unlock:
2923         mutex_unlock(&local->chanctx_mtx);
2924         mutex_unlock(&local->mtx);
2925         sdata_unlock(sdata);
2926 }
2927
2928 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2929                                     struct cfg80211_csa_settings *params,
2930                                     u32 *changed)
2931 {
2932         struct ieee80211_csa_settings csa = {};
2933         int err;
2934
2935         switch (sdata->vif.type) {
2936         case NL80211_IFTYPE_AP:
2937                 sdata->u.ap.next_beacon =
2938                         cfg80211_beacon_dup(&params->beacon_after);
2939                 if (!sdata->u.ap.next_beacon)
2940                         return -ENOMEM;
2941
2942                 /*
2943                  * With a count of 0, we don't have to wait for any
2944                  * TBTT before switching, so complete the CSA
2945                  * immediately.  In theory, with a count == 1 we
2946                  * should delay the switch until just before the next
2947                  * TBTT, but that would complicate things so we switch
2948                  * immediately too.  If we would delay the switch
2949                  * until the next TBTT, we would have to set the probe
2950                  * response here.
2951                  *
2952                  * TODO: A channel switch with count <= 1 without
2953                  * sending a CSA action frame is kind of useless,
2954                  * because the clients won't know we're changing
2955                  * channels.  The action frame must be implemented
2956                  * either here or in the userspace.
2957                  */
2958                 if (params->count <= 1)
2959                         break;
2960
2961                 if ((params->n_counter_offsets_beacon >
2962                      IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2963                     (params->n_counter_offsets_presp >
2964                      IEEE80211_MAX_CSA_COUNTERS_NUM))
2965                         return -EINVAL;
2966
2967                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2968                 csa.counter_offsets_presp = params->counter_offsets_presp;
2969                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2970                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2971                 csa.count = params->count;
2972
2973                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
2974                 if (err < 0) {
2975                         kfree(sdata->u.ap.next_beacon);
2976                         return err;
2977                 }
2978                 *changed |= err;
2979
2980                 break;
2981         case NL80211_IFTYPE_ADHOC:
2982                 if (!sdata->vif.bss_conf.ibss_joined)
2983                         return -EINVAL;
2984
2985                 if (params->chandef.width != sdata->u.ibss.chandef.width)
2986                         return -EINVAL;
2987
2988                 switch (params->chandef.width) {
2989                 case NL80211_CHAN_WIDTH_40:
2990                         if (cfg80211_get_chandef_type(&params->chandef) !=
2991                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2992                                 return -EINVAL;
2993                 case NL80211_CHAN_WIDTH_5:
2994                 case NL80211_CHAN_WIDTH_10:
2995                 case NL80211_CHAN_WIDTH_20_NOHT:
2996                 case NL80211_CHAN_WIDTH_20:
2997                         break;
2998                 default:
2999                         return -EINVAL;
3000                 }
3001
3002                 /* changes into another band are not supported */
3003                 if (sdata->u.ibss.chandef.chan->band !=
3004                     params->chandef.chan->band)
3005                         return -EINVAL;
3006
3007                 /* see comments in the NL80211_IFTYPE_AP block */
3008                 if (params->count > 1) {
3009                         err = ieee80211_ibss_csa_beacon(sdata, params);
3010                         if (err < 0)
3011                                 return err;
3012                         *changed |= err;
3013                 }
3014
3015                 ieee80211_send_action_csa(sdata, params);
3016
3017                 break;
3018 #ifdef CONFIG_MAC80211_MESH
3019         case NL80211_IFTYPE_MESH_POINT: {
3020                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3021
3022                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3023                         return -EINVAL;
3024
3025                 /* changes into another band are not supported */
3026                 if (sdata->vif.bss_conf.chandef.chan->band !=
3027                     params->chandef.chan->band)
3028                         return -EINVAL;
3029
3030                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3031                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3032                         if (!ifmsh->pre_value)
3033                                 ifmsh->pre_value = 1;
3034                         else
3035                                 ifmsh->pre_value++;
3036                 }
3037
3038                 /* see comments in the NL80211_IFTYPE_AP block */
3039                 if (params->count > 1) {
3040                         err = ieee80211_mesh_csa_beacon(sdata, params);
3041                         if (err < 0) {
3042                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3043                                 return err;
3044                         }
3045                         *changed |= err;
3046                 }
3047
3048                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3049                         ieee80211_send_action_csa(sdata, params);
3050
3051                 break;
3052                 }
3053 #endif
3054         default:
3055                 return -EOPNOTSUPP;
3056         }
3057
3058         return 0;
3059 }
3060
3061 static int
3062 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3063                            struct cfg80211_csa_settings *params)
3064 {
3065         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3066         struct ieee80211_local *local = sdata->local;
3067         struct ieee80211_channel_switch ch_switch;
3068         struct ieee80211_chanctx_conf *conf;
3069         struct ieee80211_chanctx *chanctx;
3070         u32 changed = 0;
3071         int err;
3072
3073         sdata_assert_lock(sdata);
3074         lockdep_assert_held(&local->mtx);
3075
3076         if (!list_empty(&local->roc_list) || local->scanning)
3077                 return -EBUSY;
3078
3079         if (sdata->wdev.cac_started)
3080                 return -EBUSY;
3081
3082         if (cfg80211_chandef_identical(&params->chandef,
3083                                        &sdata->vif.bss_conf.chandef))
3084                 return -EINVAL;
3085
3086         /* don't allow another channel switch if one is already active. */
3087         if (sdata->vif.csa_active)
3088                 return -EBUSY;
3089
3090         mutex_lock(&local->chanctx_mtx);
3091         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3092                                          lockdep_is_held(&local->chanctx_mtx));
3093         if (!conf) {
3094                 err = -EBUSY;
3095                 goto out;
3096         }
3097
3098         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3099
3100         ch_switch.timestamp = 0;
3101         ch_switch.device_timestamp = 0;
3102         ch_switch.block_tx = params->block_tx;
3103         ch_switch.chandef = params->chandef;
3104         ch_switch.count = params->count;
3105
3106         err = drv_pre_channel_switch(sdata, &ch_switch);
3107         if (err)
3108                 goto out;
3109
3110         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3111                                             chanctx->mode,
3112                                             params->radar_required);
3113         if (err)
3114                 goto out;
3115
3116         /* if reservation is invalid then this will fail */
3117         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3118         if (err) {
3119                 ieee80211_vif_unreserve_chanctx(sdata);
3120                 goto out;
3121         }
3122
3123         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3124         if (err) {
3125                 ieee80211_vif_unreserve_chanctx(sdata);
3126                 goto out;
3127         }
3128
3129         sdata->csa_chandef = params->chandef;
3130         sdata->csa_block_tx = params->block_tx;
3131         sdata->vif.csa_active = true;
3132
3133         if (sdata->csa_block_tx)
3134                 ieee80211_stop_vif_queues(local, sdata,
3135                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3136
3137         cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3138                                           params->count);
3139
3140         if (changed) {
3141                 ieee80211_bss_info_change_notify(sdata, changed);
3142                 drv_channel_switch_beacon(sdata, &params->chandef);
3143         } else {
3144                 /* if the beacon didn't change, we can finalize immediately */
3145                 ieee80211_csa_finalize(sdata);
3146         }
3147
3148 out:
3149         mutex_unlock(&local->chanctx_mtx);
3150         return err;
3151 }
3152
3153 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3154                              struct cfg80211_csa_settings *params)
3155 {
3156         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3157         struct ieee80211_local *local = sdata->local;
3158         int err;
3159
3160         mutex_lock(&local->mtx);
3161         err = __ieee80211_channel_switch(wiphy, dev, params);
3162         mutex_unlock(&local->mtx);
3163
3164         return err;
3165 }
3166
3167 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3168 {
3169         lockdep_assert_held(&local->mtx);
3170
3171         local->roc_cookie_counter++;
3172
3173         /* wow, you wrapped 64 bits ... more likely a bug */
3174         if (WARN_ON(local->roc_cookie_counter == 0))
3175                 local->roc_cookie_counter++;
3176
3177         return local->roc_cookie_counter;
3178 }
3179
3180 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3181                              u64 *cookie, gfp_t gfp)
3182 {
3183         unsigned long spin_flags;
3184         struct sk_buff *ack_skb;
3185         int id;
3186
3187         ack_skb = skb_copy(skb, gfp);
3188         if (!ack_skb)
3189                 return -ENOMEM;
3190
3191         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3192         id = idr_alloc(&local->ack_status_frames, ack_skb,
3193                        1, 0x10000, GFP_ATOMIC);
3194         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3195
3196         if (id < 0) {
3197                 kfree_skb(ack_skb);
3198                 return -ENOMEM;
3199         }
3200
3201         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3202
3203         *cookie = ieee80211_mgmt_tx_cookie(local);
3204         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3205
3206         return 0;
3207 }
3208
3209 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3210                                           struct wireless_dev *wdev,
3211                                           u16 frame_type, bool reg)
3212 {
3213         struct ieee80211_local *local = wiphy_priv(wiphy);
3214         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3215
3216         switch (frame_type) {
3217         case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3218                 if (reg) {
3219                         local->probe_req_reg++;
3220                         sdata->vif.probe_req_reg++;
3221                 } else {
3222                         if (local->probe_req_reg)
3223                                 local->probe_req_reg--;
3224
3225                         if (sdata->vif.probe_req_reg)
3226                                 sdata->vif.probe_req_reg--;
3227                 }
3228
3229                 if (!local->open_count)
3230                         break;
3231
3232                 if (sdata->vif.probe_req_reg == 1)
3233                         drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3234                                                 FIF_PROBE_REQ);
3235                 else if (sdata->vif.probe_req_reg == 0)
3236                         drv_config_iface_filter(local, sdata, 0,
3237                                                 FIF_PROBE_REQ);
3238
3239                 ieee80211_configure_filter(local);
3240                 break;
3241         default:
3242                 break;
3243         }
3244 }
3245
3246 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3247 {
3248         struct ieee80211_local *local = wiphy_priv(wiphy);
3249
3250         if (local->started)
3251                 return -EOPNOTSUPP;
3252
3253         return drv_set_antenna(local, tx_ant, rx_ant);
3254 }
3255
3256 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3257 {
3258         struct ieee80211_local *local = wiphy_priv(wiphy);
3259
3260         return drv_get_antenna(local, tx_ant, rx_ant);
3261 }
3262
3263 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3264                                     struct net_device *dev,
3265                                     struct cfg80211_gtk_rekey_data *data)
3266 {
3267         struct ieee80211_local *local = wiphy_priv(wiphy);
3268         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3269
3270         if (!local->ops->set_rekey_data)
3271                 return -EOPNOTSUPP;
3272
3273         drv_set_rekey_data(local, sdata, data);
3274
3275         return 0;
3276 }
3277
3278 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3279                                   const u8 *peer, u64 *cookie)
3280 {
3281         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3282         struct ieee80211_local *local = sdata->local;
3283         struct ieee80211_qos_hdr *nullfunc;
3284         struct sk_buff *skb;
3285         int size = sizeof(*nullfunc);
3286         __le16 fc;
3287         bool qos;
3288         struct ieee80211_tx_info *info;
3289         struct sta_info *sta;
3290         struct ieee80211_chanctx_conf *chanctx_conf;
3291         enum nl80211_band band;
3292         int ret;
3293
3294         /* the lock is needed to assign the cookie later */
3295         mutex_lock(&local->mtx);
3296
3297         rcu_read_lock();
3298         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3299         if (WARN_ON(!chanctx_conf)) {
3300                 ret = -EINVAL;
3301                 goto unlock;
3302         }
3303         band = chanctx_conf->def.chan->band;
3304         sta = sta_info_get_bss(sdata, peer);
3305         if (sta) {
3306                 qos = sta->sta.wme;
3307         } else {
3308                 ret = -ENOLINK;
3309                 goto unlock;
3310         }
3311
3312         if (qos) {
3313                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3314                                  IEEE80211_STYPE_QOS_NULLFUNC |
3315                                  IEEE80211_FCTL_FROMDS);
3316         } else {
3317                 size -= 2;
3318                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3319                                  IEEE80211_STYPE_NULLFUNC |
3320                                  IEEE80211_FCTL_FROMDS);
3321         }
3322
3323         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3324         if (!skb) {
3325                 ret = -ENOMEM;
3326                 goto unlock;
3327         }
3328
3329         skb->dev = dev;
3330
3331         skb_reserve(skb, local->hw.extra_tx_headroom);
3332
3333         nullfunc = (void *) skb_put(skb, size);
3334         nullfunc->frame_control = fc;
3335         nullfunc->duration_id = 0;
3336         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3337         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3338         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3339         nullfunc->seq_ctrl = 0;
3340
3341         info = IEEE80211_SKB_CB(skb);
3342
3343         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3344                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3345         info->band = band;
3346
3347         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3348         skb->priority = 7;
3349         if (qos)
3350                 nullfunc->qos_ctrl = cpu_to_le16(7);
3351
3352         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3353         if (ret) {
3354                 kfree_skb(skb);
3355                 goto unlock;
3356         }
3357
3358         local_bh_disable();
3359         ieee80211_xmit(sdata, sta, skb);
3360         local_bh_enable();
3361
3362         ret = 0;
3363 unlock:
3364         rcu_read_unlock();
3365         mutex_unlock(&local->mtx);
3366
3367         return ret;
3368 }
3369
3370 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3371                                      struct wireless_dev *wdev,
3372                                      struct cfg80211_chan_def *chandef)
3373 {
3374         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3375         struct ieee80211_local *local = wiphy_priv(wiphy);
3376         struct ieee80211_chanctx_conf *chanctx_conf;
3377         int ret = -ENODATA;
3378
3379         rcu_read_lock();
3380         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3381         if (chanctx_conf) {
3382                 *chandef = sdata->vif.bss_conf.chandef;
3383                 ret = 0;
3384         } else if (local->open_count > 0 &&
3385                    local->open_count == local->monitors &&
3386                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3387                 if (local->use_chanctx)
3388                         *chandef = local->monitor_chandef;
3389                 else
3390                         *chandef = local->_oper_chandef;
3391                 ret = 0;
3392         }
3393         rcu_read_unlock();
3394
3395         return ret;
3396 }
3397
3398 #ifdef CONFIG_PM
3399 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3400 {
3401         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3402 }
3403 #endif
3404
3405 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3406                                  struct net_device *dev,
3407                                  struct cfg80211_qos_map *qos_map)
3408 {
3409         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3410         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3411
3412         if (qos_map) {
3413                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3414                 if (!new_qos_map)
3415                         return -ENOMEM;
3416                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3417         } else {
3418                 /* A NULL qos_map was passed to disable QoS mapping */
3419                 new_qos_map = NULL;
3420         }
3421
3422         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3423         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3424         if (old_qos_map)
3425                 kfree_rcu(old_qos_map, rcu_head);
3426
3427         return 0;
3428 }
3429
3430 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3431                                       struct net_device *dev,
3432                                       struct cfg80211_chan_def *chandef)
3433 {
3434         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3435         int ret;
3436         u32 changed = 0;
3437
3438         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3439         if (ret == 0)
3440                 ieee80211_bss_info_change_notify(sdata, changed);
3441
3442         return ret;
3443 }
3444
3445 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3446                                u8 tsid, const u8 *peer, u8 up,
3447                                u16 admitted_time)
3448 {
3449         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3450         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3451         int ac = ieee802_1d_to_ac[up];
3452
3453         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3454                 return -EOPNOTSUPP;
3455
3456         if (!(sdata->wmm_acm & BIT(up)))
3457                 return -EINVAL;
3458
3459         if (ifmgd->tx_tspec[ac].admitted_time)
3460                 return -EBUSY;
3461
3462         if (admitted_time) {
3463                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3464                 ifmgd->tx_tspec[ac].tsid = tsid;
3465                 ifmgd->tx_tspec[ac].up = up;
3466         }
3467
3468         return 0;
3469 }
3470
3471 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3472                                u8 tsid, const u8 *peer)
3473 {
3474         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3475         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3476         struct ieee80211_local *local = wiphy_priv(wiphy);
3477         int ac;
3478
3479         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3480                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3481
3482                 /* skip unused entries */
3483                 if (!tx_tspec->admitted_time)
3484                         continue;
3485
3486                 if (tx_tspec->tsid != tsid)
3487                         continue;
3488
3489                 /* due to this new packets will be reassigned to non-ACM ACs */
3490                 tx_tspec->up = -1;
3491
3492                 /* Make sure that all packets have been sent to avoid to
3493                  * restore the QoS params on packets that are still on the
3494                  * queues.
3495                  */
3496                 synchronize_net();
3497                 ieee80211_flush_queues(local, sdata, false);
3498
3499                 /* restore the normal QoS parameters
3500                  * (unconditionally to avoid races)
3501                  */
3502                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3503                 tx_tspec->downgraded = false;
3504                 ieee80211_sta_handle_tspec_ac_params(sdata);
3505
3506                 /* finally clear all the data */
3507                 memset(tx_tspec, 0, sizeof(*tx_tspec));
3508
3509                 return 0;
3510         }
3511
3512         return -ENOENT;
3513 }
3514
3515 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3516                                    u8 inst_id,
3517                                    enum nl80211_nan_func_term_reason reason,
3518                                    gfp_t gfp)
3519 {
3520         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3521         struct cfg80211_nan_func *func;
3522         u64 cookie;
3523
3524         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3525                 return;
3526
3527         spin_lock_bh(&sdata->u.nan.func_lock);
3528
3529         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3530         if (WARN_ON(!func)) {
3531                 spin_unlock_bh(&sdata->u.nan.func_lock);
3532                 return;
3533         }
3534
3535         cookie = func->cookie;
3536         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3537
3538         spin_unlock_bh(&sdata->u.nan.func_lock);
3539
3540         cfg80211_free_nan_func(func);
3541
3542         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3543                                      reason, cookie, gfp);
3544 }
3545 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3546
3547 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3548                               struct cfg80211_nan_match_params *match,
3549                               gfp_t gfp)
3550 {
3551         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3552         struct cfg80211_nan_func *func;
3553
3554         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3555                 return;
3556
3557         spin_lock_bh(&sdata->u.nan.func_lock);
3558
3559         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3560         if (WARN_ON(!func)) {
3561                 spin_unlock_bh(&sdata->u.nan.func_lock);
3562                 return;
3563         }
3564         match->cookie = func->cookie;
3565
3566         spin_unlock_bh(&sdata->u.nan.func_lock);
3567
3568         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3569 }
3570 EXPORT_SYMBOL(ieee80211_nan_func_match);
3571
3572 const struct cfg80211_ops mac80211_config_ops = {
3573         .add_virtual_intf = ieee80211_add_iface,
3574         .del_virtual_intf = ieee80211_del_iface,
3575         .change_virtual_intf = ieee80211_change_iface,
3576         .start_p2p_device = ieee80211_start_p2p_device,
3577         .stop_p2p_device = ieee80211_stop_p2p_device,
3578         .add_key = ieee80211_add_key,
3579         .del_key = ieee80211_del_key,
3580         .get_key = ieee80211_get_key,
3581         .set_default_key = ieee80211_config_default_key,
3582         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3583         .start_ap = ieee80211_start_ap,
3584         .change_beacon = ieee80211_change_beacon,
3585         .stop_ap = ieee80211_stop_ap,
3586         .add_station = ieee80211_add_station,
3587         .del_station = ieee80211_del_station,
3588         .change_station = ieee80211_change_station,
3589         .get_station = ieee80211_get_station,
3590         .dump_station = ieee80211_dump_station,
3591         .dump_survey = ieee80211_dump_survey,
3592 #ifdef CONFIG_MAC80211_MESH
3593         .add_mpath = ieee80211_add_mpath,
3594         .del_mpath = ieee80211_del_mpath,
3595         .change_mpath = ieee80211_change_mpath,
3596         .get_mpath = ieee80211_get_mpath,
3597         .dump_mpath = ieee80211_dump_mpath,
3598         .get_mpp = ieee80211_get_mpp,
3599         .dump_mpp = ieee80211_dump_mpp,
3600         .update_mesh_config = ieee80211_update_mesh_config,
3601         .get_mesh_config = ieee80211_get_mesh_config,
3602         .join_mesh = ieee80211_join_mesh,
3603         .leave_mesh = ieee80211_leave_mesh,
3604 #endif
3605         .join_ocb = ieee80211_join_ocb,
3606         .leave_ocb = ieee80211_leave_ocb,
3607         .change_bss = ieee80211_change_bss,
3608         .set_txq_params = ieee80211_set_txq_params,
3609         .set_monitor_channel = ieee80211_set_monitor_channel,
3610         .suspend = ieee80211_suspend,
3611         .resume = ieee80211_resume,
3612         .scan = ieee80211_scan,
3613         .abort_scan = ieee80211_abort_scan,
3614         .sched_scan_start = ieee80211_sched_scan_start,
3615         .sched_scan_stop = ieee80211_sched_scan_stop,
3616         .auth = ieee80211_auth,
3617         .assoc = ieee80211_assoc,
3618         .deauth = ieee80211_deauth,
3619         .disassoc = ieee80211_disassoc,
3620         .join_ibss = ieee80211_join_ibss,
3621         .leave_ibss = ieee80211_leave_ibss,
3622         .set_mcast_rate = ieee80211_set_mcast_rate,
3623         .set_wiphy_params = ieee80211_set_wiphy_params,
3624         .set_tx_power = ieee80211_set_tx_power,
3625         .get_tx_power = ieee80211_get_tx_power,
3626         .set_wds_peer = ieee80211_set_wds_peer,
3627         .rfkill_poll = ieee80211_rfkill_poll,
3628         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3629         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3630         .set_power_mgmt = ieee80211_set_power_mgmt,
3631         .set_bitrate_mask = ieee80211_set_bitrate_mask,
3632         .remain_on_channel = ieee80211_remain_on_channel,
3633         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3634         .mgmt_tx = ieee80211_mgmt_tx,
3635         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3636         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3637         .mgmt_frame_register = ieee80211_mgmt_frame_register,
3638         .set_antenna = ieee80211_set_antenna,
3639         .get_antenna = ieee80211_get_antenna,
3640         .set_rekey_data = ieee80211_set_rekey_data,
3641         .tdls_oper = ieee80211_tdls_oper,
3642         .tdls_mgmt = ieee80211_tdls_mgmt,
3643         .tdls_channel_switch = ieee80211_tdls_channel_switch,
3644         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3645         .probe_client = ieee80211_probe_client,
3646         .set_noack_map = ieee80211_set_noack_map,
3647 #ifdef CONFIG_PM
3648         .set_wakeup = ieee80211_set_wakeup,
3649 #endif
3650         .get_channel = ieee80211_cfg_get_channel,
3651         .start_radar_detection = ieee80211_start_radar_detection,
3652         .channel_switch = ieee80211_channel_switch,
3653         .set_qos_map = ieee80211_set_qos_map,
3654         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3655         .add_tx_ts = ieee80211_add_tx_ts,
3656         .del_tx_ts = ieee80211_del_tx_ts,
3657         .start_nan = ieee80211_start_nan,
3658         .stop_nan = ieee80211_stop_nan,
3659         .nan_change_conf = ieee80211_nan_change_conf,
3660         .add_nan_func = ieee80211_add_nan_func,
3661         .del_nan_func = ieee80211_del_nan_func,
3662 };