net/mac80211/cfg.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * mac80211 configuration hooks for cfg80211
   4  *
   5  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   6  * Copyright 2013-2015  Intel Mobile Communications GmbH
   7  * Copyright (C) 2015-2017 Intel Deutschland GmbH
   8  * Copyright (C) 2018-2020 Intel Corporation
   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/fips.h>
  18 #include <linux/if_ether.h>
  19 #include <net/cfg80211.h>
  20 #include "ieee80211_i.h"
  21 #include "driver-ops.h"
  22 #include "rate.h"
  23 #include "mesh.h"
  24 #include "wme.h"
  25
  26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
  27                                          struct vif_params *params)
  28 {
  29         bool mu_mimo_groups = false;
  30         bool mu_mimo_follow = false;
  31
  32         if (params->vht_mumimo_groups) {
  33                 u64 membership;
  34
  35                 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
  36
  37                 memcpy(sdata->vif.bss_conf.mu_group.membership,
  38                        params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
  39                 memcpy(sdata->vif.bss_conf.mu_group.position,
  40                        params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
  41                        WLAN_USER_POSITION_LEN);
  42                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
  43                 /* don't care about endianness - just check for 0 */
  44                 memcpy(&membership, params->vht_mumimo_groups,
  45                        WLAN_MEMBERSHIP_LEN);
  46                 mu_mimo_groups = membership != 0;
  47         }
  48
  49         if (params->vht_mumimo_follow_addr) {
  50                 mu_mimo_follow =
  51                         is_valid_ether_addr(params->vht_mumimo_follow_addr);
  52                 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
  53                                 params->vht_mumimo_follow_addr);
  54         }
  55
  56         sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
  57 }
  58
  59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
  60                                      struct vif_params *params)
  61 {
  62         struct ieee80211_local *local = sdata->local;
  63         struct ieee80211_sub_if_data *monitor_sdata;
  64
  65         /* check flags first */
  66         if (params->flags && ieee80211_sdata_running(sdata)) {
  67                 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
  68
  69                 /*
  70                  * Prohibit MONITOR_FLAG_COOK_FRAMES and
  71                  * MONITOR_FLAG_ACTIVE to be changed while the
  72                  * interface is up.
  73                  * Else we would need to add a lot of cruft
  74                  * to update everything:
  75                  *      cooked_mntrs, monitor and all fif_* counters
  76                  *      reconfigure hardware
  77                  */
  78                 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
  79                         return -EBUSY;
  80         }
  81
  82         /* also validate MU-MIMO change */
  83         monitor_sdata = rtnl_dereference(local->monitor_sdata);
  84
  85         if (!monitor_sdata &&
  86             (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
  87                 return -EOPNOTSUPP;
  88
  89         /* apply all changes now - no failures allowed */
  90
  91         if (monitor_sdata)
  92                 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
  93
  94         if (params->flags) {
  95                 if (ieee80211_sdata_running(sdata)) {
  96                         ieee80211_adjust_monitor_flags(sdata, -1);
  97                         sdata->u.mntr.flags = params->flags;
  98                         ieee80211_adjust_monitor_flags(sdata, 1);
  99
 100                         ieee80211_configure_filter(local);
 101                 } else {
 102                         /*
 103                          * Because the interface is down, ieee80211_do_stop
 104                          * and ieee80211_do_open take care of "everything"
 105                          * mentioned in the comment above.
 106                          */
 107                         sdata->u.mntr.flags = params->flags;
 108                 }
 109         }
 110
 111         return 0;
 112 }
 113
 114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
 115                                                 const char *name,
 116                                                 unsigned char name_assign_type,
 117                                                 enum nl80211_iftype type,
 118                                                 struct vif_params *params)
 119 {
 120         struct ieee80211_local *local = wiphy_priv(wiphy);
 121         struct wireless_dev *wdev;
 122         struct ieee80211_sub_if_data *sdata;
 123         int err;
 124
 125         err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
 126         if (err)
 127                 return ERR_PTR(err);
 128
 129         sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 130
 131         if (type == NL80211_IFTYPE_MONITOR) {
 132                 err = ieee80211_set_mon_options(sdata, params);
 133                 if (err) {
 134                         ieee80211_if_remove(sdata);
 135                         return NULL;
 136                 }
 137         }
 138
 139         return wdev;
 140 }
 141
 142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
 143 {
 144         ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
 145
 146         return 0;
 147 }
 148
 149 static int ieee80211_change_iface(struct wiphy *wiphy,
 150                                   struct net_device *dev,
 151                                   enum nl80211_iftype type,
 152                                   struct vif_params *params)
 153 {
 154         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 155         struct ieee80211_local *local = sdata->local;
 156         struct sta_info *sta;
 157         int ret;
 158
 159         ret = ieee80211_if_change_type(sdata, type);
 160         if (ret)
 161                 return ret;
 162
 163         if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
 164                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
 165                 ieee80211_check_fast_rx_iface(sdata);
 166         } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
 167                 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 168
 169                 if (params->use_4addr == ifmgd->use_4addr)
 170                         return 0;
 171
 172                 sdata->u.mgd.use_4addr = params->use_4addr;
 173                 if (!ifmgd->associated)
 174                         return 0;
 175
 176                 mutex_lock(&local->sta_mtx);
 177                 sta = sta_info_get(sdata, ifmgd->bssid);
 178                 if (sta)
 179                         drv_sta_set_4addr(local, sdata, &sta->sta,
 180                                           params->use_4addr);
 181                 mutex_unlock(&local->sta_mtx);
 182
 183                 if (params->use_4addr)
 184                         ieee80211_send_4addr_nullfunc(local, sdata);
 185         }
 186
 187         if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
 188                 ret = ieee80211_set_mon_options(sdata, params);
 189                 if (ret)
 190                         return ret;
 191         }
 192
 193         return 0;
 194 }
 195
 196 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 197                                       struct wireless_dev *wdev)
 198 {
 199         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 200         int ret;
 201
 202         mutex_lock(&sdata->local->chanctx_mtx);
 203         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 204         mutex_unlock(&sdata->local->chanctx_mtx);
 205         if (ret < 0)
 206                 return ret;
 207
 208         return ieee80211_do_open(wdev, true);
 209 }
 210
 211 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 212                                       struct wireless_dev *wdev)
 213 {
 214         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 215 }
 216
 217 static int ieee80211_start_nan(struct wiphy *wiphy,
 218                                struct wireless_dev *wdev,
 219                                struct cfg80211_nan_conf *conf)
 220 {
 221         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 222         int ret;
 223
 224         mutex_lock(&sdata->local->chanctx_mtx);
 225         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 226         mutex_unlock(&sdata->local->chanctx_mtx);
 227         if (ret < 0)
 228                 return ret;
 229
 230         ret = ieee80211_do_open(wdev, true);
 231         if (ret)
 232                 return ret;
 233
 234         ret = drv_start_nan(sdata->local, sdata, conf);
 235         if (ret)
 236                 ieee80211_sdata_stop(sdata);
 237
 238         sdata->u.nan.conf = *conf;
 239
 240         return ret;
 241 }
 242
 243 static void ieee80211_stop_nan(struct wiphy *wiphy,
 244                                struct wireless_dev *wdev)
 245 {
 246         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 247
 248         drv_stop_nan(sdata->local, sdata);
 249         ieee80211_sdata_stop(sdata);
 250 }
 251
 252 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
 253                                      struct wireless_dev *wdev,
 254                                      struct cfg80211_nan_conf *conf,
 255                                      u32 changes)
 256 {
 257         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 258         struct cfg80211_nan_conf new_conf;
 259         int ret = 0;
 260
 261         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 262                 return -EOPNOTSUPP;
 263
 264         if (!ieee80211_sdata_running(sdata))
 265                 return -ENETDOWN;
 266
 267         new_conf = sdata->u.nan.conf;
 268
 269         if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
 270                 new_conf.master_pref = conf->master_pref;
 271
 272         if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
 273                 new_conf.bands = conf->bands;
 274
 275         ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
 276         if (!ret)
 277                 sdata->u.nan.conf = new_conf;
 278
 279         return ret;
 280 }
 281
 282 static int ieee80211_add_nan_func(struct wiphy *wiphy,
 283                                   struct wireless_dev *wdev,
 284                                   struct cfg80211_nan_func *nan_func)
 285 {
 286         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 287         int ret;
 288
 289         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 290                 return -EOPNOTSUPP;
 291
 292         if (!ieee80211_sdata_running(sdata))
 293                 return -ENETDOWN;
 294
 295         spin_lock_bh(&sdata->u.nan.func_lock);
 296
 297         ret = idr_alloc(&sdata->u.nan.function_inst_ids,
 298                         nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
 299                         GFP_ATOMIC);
 300         spin_unlock_bh(&sdata->u.nan.func_lock);
 301
 302         if (ret < 0)
 303                 return ret;
 304
 305         nan_func->instance_id = ret;
 306
 307         WARN_ON(nan_func->instance_id == 0);
 308
 309         ret = drv_add_nan_func(sdata->local, sdata, nan_func);
 310         if (ret) {
 311                 spin_lock_bh(&sdata->u.nan.func_lock);
 312                 idr_remove(&sdata->u.nan.function_inst_ids,
 313                            nan_func->instance_id);
 314                 spin_unlock_bh(&sdata->u.nan.func_lock);
 315         }
 316
 317         return ret;
 318 }
 319
 320 static struct cfg80211_nan_func *
 321 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
 322                                   u64 cookie)
 323 {
 324         struct cfg80211_nan_func *func;
 325         int id;
 326
 327         lockdep_assert_held(&sdata->u.nan.func_lock);
 328
 329         idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
 330                 if (func->cookie == cookie)
 331                         return func;
 332         }
 333
 334         return NULL;
 335 }
 336
 337 static void ieee80211_del_nan_func(struct wiphy *wiphy,
 338                                   struct wireless_dev *wdev, u64 cookie)
 339 {
 340         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 341         struct cfg80211_nan_func *func;
 342         u8 instance_id = 0;
 343
 344         if (sdata->vif.type != NL80211_IFTYPE_NAN ||
 345             !ieee80211_sdata_running(sdata))
 346                 return;
 347
 348         spin_lock_bh(&sdata->u.nan.func_lock);
 349
 350         func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
 351         if (func)
 352                 instance_id = func->instance_id;
 353
 354         spin_unlock_bh(&sdata->u.nan.func_lock);
 355
 356         if (instance_id)
 357                 drv_del_nan_func(sdata->local, sdata, instance_id);
 358 }
 359
 360 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 361                                   struct net_device *dev,
 362                                   u16 noack_map)
 363 {
 364         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 365
 366         sdata->noack_map = noack_map;
 367
 368         ieee80211_check_fast_xmit_iface(sdata);
 369
 370         return 0;
 371 }
 372
 373 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
 374                             const u8 *mac_addr, u8 key_idx)
 375 {
 376         struct ieee80211_local *local = sdata->local;
 377         struct ieee80211_key *key;
 378         struct sta_info *sta;
 379         int ret = -EINVAL;
 380
 381         if (!wiphy_ext_feature_isset(local->hw.wiphy,
 382                                      NL80211_EXT_FEATURE_EXT_KEY_ID))
 383                 return -EINVAL;
 384
 385         sta = sta_info_get_bss(sdata, mac_addr);
 386
 387         if (!sta)
 388                 return -EINVAL;
 389
 390         if (sta->ptk_idx == key_idx)
 391                 return 0;
 392
 393         mutex_lock(&local->key_mtx);
 394         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 395
 396         if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
 397                 ret = ieee80211_set_tx_key(key);
 398
 399         mutex_unlock(&local->key_mtx);
 400         return ret;
 401 }
 402
 403 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 404                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 405                              struct key_params *params)
 406 {
 407         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 408         struct ieee80211_local *local = sdata->local;
 409         struct sta_info *sta = NULL;
 410         const struct ieee80211_cipher_scheme *cs = NULL;
 411         struct ieee80211_key *key;
 412         int err;
 413
 414         if (!ieee80211_sdata_running(sdata))
 415                 return -ENETDOWN;
 416
 417         if (pairwise && params->mode == NL80211_KEY_SET_TX)
 418                 return ieee80211_set_tx(sdata, mac_addr, key_idx);
 419
 420         /* reject WEP and TKIP keys if WEP failed to initialize */
 421         switch (params->cipher) {
 422         case WLAN_CIPHER_SUITE_WEP40:
 423         case WLAN_CIPHER_SUITE_TKIP:
 424         case WLAN_CIPHER_SUITE_WEP104:
 425                 if (WARN_ON_ONCE(fips_enabled))
 426                         return -EINVAL;
 427                 break;
 428         case WLAN_CIPHER_SUITE_CCMP:
 429         case WLAN_CIPHER_SUITE_CCMP_256:
 430         case WLAN_CIPHER_SUITE_AES_CMAC:
 431         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 432         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 433         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 434         case WLAN_CIPHER_SUITE_GCMP:
 435         case WLAN_CIPHER_SUITE_GCMP_256:
 436                 break;
 437         default:
 438                 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
 439                 break;
 440         }
 441
 442         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 443                                   params->key, params->seq_len, params->seq,
 444                                   cs);
 445         if (IS_ERR(key))
 446                 return PTR_ERR(key);
 447
 448         if (pairwise)
 449                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 450
 451         if (params->mode == NL80211_KEY_NO_TX)
 452                 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
 453
 454         mutex_lock(&local->sta_mtx);
 455
 456         if (mac_addr) {
 457                 sta = sta_info_get_bss(sdata, mac_addr);
 458                 /*
 459                  * The ASSOC test makes sure the driver is ready to
 460                  * receive the key. When wpa_supplicant has roamed
 461                  * using FT, it attempts to set the key before
 462                  * association has completed, this rejects that attempt
 463                  * so it will set the key again after association.
 464                  *
 465                  * TODO: accept the key if we have a station entry and
 466                  *       add it to the device after the station.
 467                  */
 468                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 469                         ieee80211_key_free_unused(key);
 470                         err = -ENOENT;
 471                         goto out_unlock;
 472                 }
 473         }
 474
 475         switch (sdata->vif.type) {
 476         case NL80211_IFTYPE_STATION:
 477                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 478                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 479                 break;
 480         case NL80211_IFTYPE_AP:
 481         case NL80211_IFTYPE_AP_VLAN:
 482                 /* Keys without a station are used for TX only */
 483                 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
 484                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 485                 break;
 486         case NL80211_IFTYPE_ADHOC:
 487                 /* no MFP (yet) */
 488                 break;
 489         case NL80211_IFTYPE_MESH_POINT:
 490 #ifdef CONFIG_MAC80211_MESH
 491                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 492                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 493                 break;
 494 #endif
 495         case NL80211_IFTYPE_WDS:
 496         case NL80211_IFTYPE_MONITOR:
 497         case NL80211_IFTYPE_P2P_DEVICE:
 498         case NL80211_IFTYPE_NAN:
 499         case NL80211_IFTYPE_UNSPECIFIED:
 500         case NUM_NL80211_IFTYPES:
 501         case NL80211_IFTYPE_P2P_CLIENT:
 502         case NL80211_IFTYPE_P2P_GO:
 503         case NL80211_IFTYPE_OCB:
 504                 /* shouldn't happen */
 505                 WARN_ON_ONCE(1);
 506                 break;
 507         }
 508
 509         if (sta)
 510                 sta->cipher_scheme = cs;
 511
 512         err = ieee80211_key_link(key, sdata, sta);
 513
 514  out_unlock:
 515         mutex_unlock(&local->sta_mtx);
 516
 517         return err;
 518 }
 519
 520 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 521                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 522 {
 523         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 524         struct ieee80211_local *local = sdata->local;
 525         struct sta_info *sta;
 526         struct ieee80211_key *key = NULL;
 527         int ret;
 528
 529         mutex_lock(&local->sta_mtx);
 530         mutex_lock(&local->key_mtx);
 531
 532         if (mac_addr) {
 533                 ret = -ENOENT;
 534
 535                 sta = sta_info_get_bss(sdata, mac_addr);
 536                 if (!sta)
 537                         goto out_unlock;
 538
 539                 if (pairwise)
 540                         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 541                 else
 542                         key = key_mtx_dereference(local, sta->gtk[key_idx]);
 543         } else
 544                 key = key_mtx_dereference(local, sdata->keys[key_idx]);
 545
 546         if (!key) {
 547                 ret = -ENOENT;
 548                 goto out_unlock;
 549         }
 550
 551         ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
 552
 553         ret = 0;
 554  out_unlock:
 555         mutex_unlock(&local->key_mtx);
 556         mutex_unlock(&local->sta_mtx);
 557
 558         return ret;
 559 }
 560
 561 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 562                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 563                              void *cookie,
 564                              void (*callback)(void *cookie,
 565                                               struct key_params *params))
 566 {
 567         struct ieee80211_sub_if_data *sdata;
 568         struct sta_info *sta = NULL;
 569         u8 seq[6] = {0};
 570         struct key_params params;
 571         struct ieee80211_key *key = NULL;
 572         u64 pn64;
 573         u32 iv32;
 574         u16 iv16;
 575         int err = -ENOENT;
 576         struct ieee80211_key_seq kseq = {};
 577
 578         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 579
 580         rcu_read_lock();
 581
 582         if (mac_addr) {
 583                 sta = sta_info_get_bss(sdata, mac_addr);
 584                 if (!sta)
 585                         goto out;
 586
 587                 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 588                         key = rcu_dereference(sta->ptk[key_idx]);
 589                 else if (!pairwise &&
 590                          key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS +
 591                          NUM_DEFAULT_BEACON_KEYS)
 592                         key = rcu_dereference(sta->gtk[key_idx]);
 593         } else
 594                 key = rcu_dereference(sdata->keys[key_idx]);
 595
 596         if (!key)
 597                 goto out;
 598
 599         memset(&params, 0, sizeof(params));
 600
 601         params.cipher = key->conf.cipher;
 602
 603         switch (key->conf.cipher) {
 604         case WLAN_CIPHER_SUITE_TKIP:
 605                 pn64 = atomic64_read(&key->conf.tx_pn);
 606                 iv32 = TKIP_PN_TO_IV32(pn64);
 607                 iv16 = TKIP_PN_TO_IV16(pn64);
 608
 609                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 610                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 611                         drv_get_key_seq(sdata->local, key, &kseq);
 612                         iv32 = kseq.tkip.iv32;
 613                         iv16 = kseq.tkip.iv16;
 614                 }
 615
 616                 seq[0] = iv16 & 0xff;
 617                 seq[1] = (iv16 >> 8) & 0xff;
 618                 seq[2] = iv32 & 0xff;
 619                 seq[3] = (iv32 >> 8) & 0xff;
 620                 seq[4] = (iv32 >> 16) & 0xff;
 621                 seq[5] = (iv32 >> 24) & 0xff;
 622                 params.seq = seq;
 623                 params.seq_len = 6;
 624                 break;
 625         case WLAN_CIPHER_SUITE_CCMP:
 626         case WLAN_CIPHER_SUITE_CCMP_256:
 627         case WLAN_CIPHER_SUITE_AES_CMAC:
 628         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 629                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 630                              offsetof(typeof(kseq), aes_cmac));
 631                 fallthrough;
 632         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 633         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 634                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 635                              offsetof(typeof(kseq), aes_gmac));
 636                 fallthrough;
 637         case WLAN_CIPHER_SUITE_GCMP:
 638         case WLAN_CIPHER_SUITE_GCMP_256:
 639                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 640                              offsetof(typeof(kseq), gcmp));
 641
 642                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 643                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 644                         drv_get_key_seq(sdata->local, key, &kseq);
 645                         memcpy(seq, kseq.ccmp.pn, 6);
 646                 } else {
 647                         pn64 = atomic64_read(&key->conf.tx_pn);
 648                         seq[0] = pn64;
 649                         seq[1] = pn64 >> 8;
 650                         seq[2] = pn64 >> 16;
 651                         seq[3] = pn64 >> 24;
 652                         seq[4] = pn64 >> 32;
 653                         seq[5] = pn64 >> 40;
 654                 }
 655                 params.seq = seq;
 656                 params.seq_len = 6;
 657                 break;
 658         default:
 659                 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
 660                         break;
 661                 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
 662                         break;
 663                 drv_get_key_seq(sdata->local, key, &kseq);
 664                 params.seq = kseq.hw.seq;
 665                 params.seq_len = kseq.hw.seq_len;
 666                 break;
 667         }
 668
 669         params.key = key->conf.key;
 670         params.key_len = key->conf.keylen;
 671
 672         callback(cookie, &params);
 673         err = 0;
 674
 675  out:
 676         rcu_read_unlock();
 677         return err;
 678 }
 679
 680 static int ieee80211_config_default_key(struct wiphy *wiphy,
 681                                         struct net_device *dev,
 682                                         u8 key_idx, bool uni,
 683                                         bool multi)
 684 {
 685         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 686
 687         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 688
 689         return 0;
 690 }
 691
 692 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 693                                              struct net_device *dev,
 694                                              u8 key_idx)
 695 {
 696         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 697
 698         ieee80211_set_default_mgmt_key(sdata, key_idx);
 699
 700         return 0;
 701 }
 702
 703 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
 704                                                struct net_device *dev,
 705                                                u8 key_idx)
 706 {
 707         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 708
 709         ieee80211_set_default_beacon_key(sdata, key_idx);
 710
 711         return 0;
 712 }
 713
 714 void sta_set_rate_info_tx(struct sta_info *sta,
 715                           const struct ieee80211_tx_rate *rate,
 716                           struct rate_info *rinfo)
 717 {
 718         rinfo->flags = 0;
 719         if (rate->flags & IEEE80211_TX_RC_MCS) {
 720                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 721                 rinfo->mcs = rate->idx;
 722         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 723                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 724                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 725                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 726         } else {
 727                 struct ieee80211_supported_band *sband;
 728                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 729                 u16 brate;
 730
 731                 sband = ieee80211_get_sband(sta->sdata);
 732                 WARN_ON_ONCE(sband && !sband->bitrates);
 733                 if (sband && sband->bitrates) {
 734                         brate = sband->bitrates[rate->idx].bitrate;
 735                         rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 736                 }
 737         }
 738         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 739                 rinfo->bw = RATE_INFO_BW_40;
 740         else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 741                 rinfo->bw = RATE_INFO_BW_80;
 742         else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 743                 rinfo->bw = RATE_INFO_BW_160;
 744         else
 745                 rinfo->bw = RATE_INFO_BW_20;
 746         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 747                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 748 }
 749
 750 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 751                                   int idx, u8 *mac, struct station_info *sinfo)
 752 {
 753         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 754         struct ieee80211_local *local = sdata->local;
 755         struct sta_info *sta;
 756         int ret = -ENOENT;
 757
 758         mutex_lock(&local->sta_mtx);
 759
 760         sta = sta_info_get_by_idx(sdata, idx);
 761         if (sta) {
 762                 ret = 0;
 763                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 764                 sta_set_sinfo(sta, sinfo, true);
 765         }
 766
 767         mutex_unlock(&local->sta_mtx);
 768
 769         return ret;
 770 }
 771
 772 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 773                                  int idx, struct survey_info *survey)
 774 {
 775         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 776
 777         return drv_get_survey(local, idx, survey);
 778 }
 779
 780 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 781                                  const u8 *mac, struct station_info *sinfo)
 782 {
 783         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 784         struct ieee80211_local *local = sdata->local;
 785         struct sta_info *sta;
 786         int ret = -ENOENT;
 787
 788         mutex_lock(&local->sta_mtx);
 789
 790         sta = sta_info_get_bss(sdata, mac);
 791         if (sta) {
 792                 ret = 0;
 793                 sta_set_sinfo(sta, sinfo, true);
 794         }
 795
 796         mutex_unlock(&local->sta_mtx);
 797
 798         return ret;
 799 }
 800
 801 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 802                                          struct cfg80211_chan_def *chandef)
 803 {
 804         struct ieee80211_local *local = wiphy_priv(wiphy);
 805         struct ieee80211_sub_if_data *sdata;
 806         int ret = 0;
 807
 808         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 809                 return 0;
 810
 811         mutex_lock(&local->mtx);
 812         if (local->use_chanctx) {
 813                 sdata = rtnl_dereference(local->monitor_sdata);
 814                 if (sdata) {
 815                         ieee80211_vif_release_channel(sdata);
 816                         ret = ieee80211_vif_use_channel(sdata, chandef,
 817                                         IEEE80211_CHANCTX_EXCLUSIVE);
 818                 }
 819         } else if (local->open_count == local->monitors) {
 820                 local->_oper_chandef = *chandef;
 821                 ieee80211_hw_config(local, 0);
 822         }
 823
 824         if (ret == 0)
 825                 local->monitor_chandef = *chandef;
 826         mutex_unlock(&local->mtx);
 827
 828         return ret;
 829 }
 830
 831 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 832                                     const u8 *resp, size_t resp_len,
 833                                     const struct ieee80211_csa_settings *csa)
 834 {
 835         struct probe_resp *new, *old;
 836
 837         if (!resp || !resp_len)
 838                 return 1;
 839
 840         old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 841
 842         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 843         if (!new)
 844                 return -ENOMEM;
 845
 846         new->len = resp_len;
 847         memcpy(new->data, resp, resp_len);
 848
 849         if (csa)
 850                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
 851                        csa->n_counter_offsets_presp *
 852                        sizeof(new->cntdwn_counter_offsets[0]));
 853
 854         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 855         if (old)
 856                 kfree_rcu(old, rcu_head);
 857
 858         return 0;
 859 }
 860
 861 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
 862                                         struct cfg80211_fils_discovery *params)
 863 {
 864         struct fils_discovery_data *new, *old = NULL;
 865         struct ieee80211_fils_discovery *fd;
 866
 867         if (!params->tmpl || !params->tmpl_len)
 868                 return -EINVAL;
 869
 870         fd = &sdata->vif.bss_conf.fils_discovery;
 871         fd->min_interval = params->min_interval;
 872         fd->max_interval = params->max_interval;
 873
 874         old = sdata_dereference(sdata->u.ap.fils_discovery, sdata);
 875         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 876         if (!new)
 877                 return -ENOMEM;
 878         new->len = params->tmpl_len;
 879         memcpy(new->data, params->tmpl, params->tmpl_len);
 880         rcu_assign_pointer(sdata->u.ap.fils_discovery, new);
 881
 882         if (old)
 883                 kfree_rcu(old, rcu_head);
 884
 885         return 0;
 886 }
 887
 888 static int
 889 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
 890                                      struct cfg80211_unsol_bcast_probe_resp *params)
 891 {
 892         struct unsol_bcast_probe_resp_data *new, *old = NULL;
 893
 894         if (!params->tmpl || !params->tmpl_len)
 895                 return -EINVAL;
 896
 897         old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata);
 898         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 899         if (!new)
 900                 return -ENOMEM;
 901         new->len = params->tmpl_len;
 902         memcpy(new->data, params->tmpl, params->tmpl_len);
 903         rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new);
 904
 905         if (old)
 906                 kfree_rcu(old, rcu_head);
 907
 908         sdata->vif.bss_conf.unsol_bcast_probe_resp_interval =
 909                                                         params->interval;
 910
 911         return 0;
 912 }
 913
 914 static int ieee80211_set_ftm_responder_params(
 915                                 struct ieee80211_sub_if_data *sdata,
 916                                 const u8 *lci, size_t lci_len,
 917                                 const u8 *civicloc, size_t civicloc_len)
 918 {
 919         struct ieee80211_ftm_responder_params *new, *old;
 920         struct ieee80211_bss_conf *bss_conf;
 921         u8 *pos;
 922         int len;
 923
 924         if (!lci_len && !civicloc_len)
 925                 return 0;
 926
 927         bss_conf = &sdata->vif.bss_conf;
 928         old = bss_conf->ftmr_params;
 929         len = lci_len + civicloc_len;
 930
 931         new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
 932         if (!new)
 933                 return -ENOMEM;
 934
 935         pos = (u8 *)(new + 1);
 936         if (lci_len) {
 937                 new->lci_len = lci_len;
 938                 new->lci = pos;
 939                 memcpy(pos, lci, lci_len);
 940                 pos += lci_len;
 941         }
 942
 943         if (civicloc_len) {
 944                 new->civicloc_len = civicloc_len;
 945                 new->civicloc = pos;
 946                 memcpy(pos, civicloc, civicloc_len);
 947                 pos += civicloc_len;
 948         }
 949
 950         bss_conf->ftmr_params = new;
 951         kfree(old);
 952
 953         return 0;
 954 }
 955
 956 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 957                                    struct cfg80211_beacon_data *params,
 958                                    const struct ieee80211_csa_settings *csa)
 959 {
 960         struct beacon_data *new, *old;
 961         int new_head_len, new_tail_len;
 962         int size, err;
 963         u32 changed = BSS_CHANGED_BEACON;
 964
 965         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 966
 967
 968         /* Need to have a beacon head if we don't have one yet */
 969         if (!params->head && !old)
 970                 return -EINVAL;
 971
 972         /* new or old head? */
 973         if (params->head)
 974                 new_head_len = params->head_len;
 975         else
 976                 new_head_len = old->head_len;
 977
 978         /* new or old tail? */
 979         if (params->tail || !old)
 980                 /* params->tail_len will be zero for !params->tail */
 981                 new_tail_len = params->tail_len;
 982         else
 983                 new_tail_len = old->tail_len;
 984
 985         size = sizeof(*new) + new_head_len + new_tail_len;
 986
 987         new = kzalloc(size, GFP_KERNEL);
 988         if (!new)
 989                 return -ENOMEM;
 990
 991         /* start filling the new info now */
 992
 993         /*
 994          * pointers go into the block we allocated,
 995          * memory is | beacon_data | head | tail |
 996          */
 997         new->head = ((u8 *) new) + sizeof(*new);
 998         new->tail = new->head + new_head_len;
 999         new->head_len = new_head_len;
1000         new->tail_len = new_tail_len;
1001
1002         if (csa) {
1003                 new->cntdwn_current_counter = csa->count;
1004                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1005                        csa->n_counter_offsets_beacon *
1006                        sizeof(new->cntdwn_counter_offsets[0]));
1007         }
1008
1009         /* copy in head */
1010         if (params->head)
1011                 memcpy(new->head, params->head, new_head_len);
1012         else
1013                 memcpy(new->head, old->head, new_head_len);
1014
1015         /* copy in optional tail */
1016         if (params->tail)
1017                 memcpy(new->tail, params->tail, new_tail_len);
1018         else
1019                 if (old)
1020                         memcpy(new->tail, old->tail, new_tail_len);
1021
1022         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1023                                        params->probe_resp_len, csa);
1024         if (err < 0) {
1025                 kfree(new);
1026                 return err;
1027         }
1028         if (err == 0)
1029                 changed |= BSS_CHANGED_AP_PROBE_RESP;
1030
1031         if (params->ftm_responder != -1) {
1032                 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
1033                 err = ieee80211_set_ftm_responder_params(sdata,
1034                                                          params->lci,
1035                                                          params->lci_len,
1036                                                          params->civicloc,
1037                                                          params->civicloc_len);
1038
1039                 if (err < 0) {
1040                         kfree(new);
1041                         return err;
1042                 }
1043
1044                 changed |= BSS_CHANGED_FTM_RESPONDER;
1045         }
1046
1047         rcu_assign_pointer(sdata->u.ap.beacon, new);
1048
1049         if (old)
1050                 kfree_rcu(old, rcu_head);
1051
1052         return changed;
1053 }
1054
1055 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1056                               struct cfg80211_ap_settings *params)
1057 {
1058         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1059         struct ieee80211_local *local = sdata->local;
1060         struct beacon_data *old;
1061         struct ieee80211_sub_if_data *vlan;
1062         u32 changed = BSS_CHANGED_BEACON_INT |
1063                       BSS_CHANGED_BEACON_ENABLED |
1064                       BSS_CHANGED_BEACON |
1065                       BSS_CHANGED_SSID |
1066                       BSS_CHANGED_P2P_PS |
1067                       BSS_CHANGED_TXPOWER |
1068                       BSS_CHANGED_TWT;
1069         int i, err;
1070         int prev_beacon_int;
1071
1072         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1073         if (old)
1074                 return -EALREADY;
1075
1076         if (params->smps_mode != NL80211_SMPS_OFF)
1077                 return -ENOTSUPP;
1078
1079         sdata->smps_mode = IEEE80211_SMPS_OFF;
1080
1081         sdata->needed_rx_chains = sdata->local->rx_chains;
1082
1083         prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1084         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1085
1086         if (params->he_cap && params->he_oper) {
1087                 sdata->vif.bss_conf.he_support = true;
1088                 sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1089                         le32_get_bits(params->he_oper->he_oper_params,
1090                               IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1091                 sdata->vif.bss_conf.frame_time_rts_th =
1092                         le32_get_bits(params->he_oper->he_oper_params,
1093                               IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1094                 changed |= BSS_CHANGED_HE_OBSS_PD;
1095
1096                 if (params->he_bss_color.enabled)
1097                         changed |= BSS_CHANGED_HE_BSS_COLOR;
1098         }
1099
1100         mutex_lock(&local->mtx);
1101         err = ieee80211_vif_use_channel(sdata, &params->chandef,
1102                                         IEEE80211_CHANCTX_SHARED);
1103         if (!err)
1104                 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1105         mutex_unlock(&local->mtx);
1106         if (err) {
1107                 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1108                 return err;
1109         }
1110
1111         /*
1112          * Apply control port protocol, this allows us to
1113          * not encrypt dynamic WEP control frames.
1114          */
1115         sdata->control_port_protocol = params->crypto.control_port_ethertype;
1116         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1117         sdata->control_port_over_nl80211 =
1118                                 params->crypto.control_port_over_nl80211;
1119         sdata->control_port_no_preauth =
1120                                 params->crypto.control_port_no_preauth;
1121         sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1122                                                         &params->crypto,
1123                                                         sdata->vif.type);
1124
1125         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1126                 vlan->control_port_protocol =
1127                         params->crypto.control_port_ethertype;
1128                 vlan->control_port_no_encrypt =
1129                         params->crypto.control_port_no_encrypt;
1130                 vlan->control_port_over_nl80211 =
1131                         params->crypto.control_port_over_nl80211;
1132                 vlan->control_port_no_preauth =
1133                         params->crypto.control_port_no_preauth;
1134                 vlan->encrypt_headroom =
1135                         ieee80211_cs_headroom(sdata->local,
1136                                               &params->crypto,
1137                                               vlan->vif.type);
1138         }
1139
1140         sdata->vif.bss_conf.dtim_period = params->dtim_period;
1141         sdata->vif.bss_conf.enable_beacon = true;
1142         sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1143         sdata->vif.bss_conf.twt_responder = params->twt_responder;
1144         sdata->vif.bss_conf.he_obss_pd = params->he_obss_pd;
1145         sdata->vif.bss_conf.he_bss_color = params->he_bss_color;
1146         sdata->vif.bss_conf.s1g = params->chandef.chan->band ==
1147                                   NL80211_BAND_S1GHZ;
1148
1149         sdata->vif.bss_conf.ssid_len = params->ssid_len;
1150         if (params->ssid_len)
1151                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1152                        params->ssid_len);
1153         sdata->vif.bss_conf.hidden_ssid =
1154                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1155
1156         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1157                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1158         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1159                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1160         if (params->p2p_opp_ps)
1161                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1162                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1163
1164         sdata->beacon_rate_set = false;
1165         if (wiphy_ext_feature_isset(local->hw.wiphy,
1166                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1167                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1168                         sdata->beacon_rateidx_mask[i] =
1169                                 params->beacon_rate.control[i].legacy;
1170                         if (sdata->beacon_rateidx_mask[i])
1171                                 sdata->beacon_rate_set = true;
1172                 }
1173         }
1174
1175         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1176                 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate;
1177
1178         err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
1179         if (err < 0)
1180                 goto error;
1181         changed |= err;
1182
1183         if (params->fils_discovery.max_interval) {
1184                 err = ieee80211_set_fils_discovery(sdata,
1185                                                    &params->fils_discovery);
1186                 if (err < 0)
1187                         goto error;
1188                 changed |= BSS_CHANGED_FILS_DISCOVERY;
1189         }
1190
1191         if (params->unsol_bcast_probe_resp.interval) {
1192                 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1193                                                            &params->unsol_bcast_probe_resp);
1194                 if (err < 0)
1195                         goto error;
1196                 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1197         }
1198
1199         err = drv_start_ap(sdata->local, sdata);
1200         if (err) {
1201                 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1202
1203                 if (old)
1204                         kfree_rcu(old, rcu_head);
1205                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1206                 goto error;
1207         }
1208
1209         ieee80211_recalc_dtim(local, sdata);
1210         ieee80211_bss_info_change_notify(sdata, changed);
1211
1212         netif_carrier_on(dev);
1213         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1214                 netif_carrier_on(vlan->dev);
1215
1216         return 0;
1217
1218 error:
1219         ieee80211_vif_release_channel(sdata);
1220         return err;
1221 }
1222
1223 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1224                                    struct cfg80211_beacon_data *params)
1225 {
1226         struct ieee80211_sub_if_data *sdata;
1227         struct beacon_data *old;
1228         int err;
1229
1230         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1231         sdata_assert_lock(sdata);
1232
1233         /* don't allow changing the beacon while CSA is in place - offset
1234          * of channel switch counter may change
1235          */
1236         if (sdata->vif.csa_active)
1237                 return -EBUSY;
1238
1239         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1240         if (!old)
1241                 return -ENOENT;
1242
1243         err = ieee80211_assign_beacon(sdata, params, NULL);
1244         if (err < 0)
1245                 return err;
1246         ieee80211_bss_info_change_notify(sdata, err);
1247         return 0;
1248 }
1249
1250 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1251 {
1252         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1253         struct ieee80211_sub_if_data *vlan;
1254         struct ieee80211_local *local = sdata->local;
1255         struct beacon_data *old_beacon;
1256         struct probe_resp *old_probe_resp;
1257         struct fils_discovery_data *old_fils_discovery;
1258         struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1259         struct cfg80211_chan_def chandef;
1260
1261         sdata_assert_lock(sdata);
1262
1263         old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1264         if (!old_beacon)
1265                 return -ENOENT;
1266         old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1267         old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery,
1268                                                sdata);
1269         old_unsol_bcast_probe_resp =
1270                 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp,
1271                                   sdata);
1272
1273         /* abort any running channel switch */
1274         mutex_lock(&local->mtx);
1275         sdata->vif.csa_active = false;
1276         if (sdata->csa_block_tx) {
1277                 ieee80211_wake_vif_queues(local, sdata,
1278                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1279                 sdata->csa_block_tx = false;
1280         }
1281
1282         mutex_unlock(&local->mtx);
1283
1284         kfree(sdata->u.ap.next_beacon);
1285         sdata->u.ap.next_beacon = NULL;
1286
1287         /* turn off carrier for this interface and dependent VLANs */
1288         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1289                 netif_carrier_off(vlan->dev);
1290         netif_carrier_off(dev);
1291
1292         /* remove beacon and probe response */
1293         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1294         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1295         RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL);
1296         RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL);
1297         kfree_rcu(old_beacon, rcu_head);
1298         if (old_probe_resp)
1299                 kfree_rcu(old_probe_resp, rcu_head);
1300         if (old_fils_discovery)
1301                 kfree_rcu(old_fils_discovery, rcu_head);
1302         if (old_unsol_bcast_probe_resp)
1303                 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1304
1305         kfree(sdata->vif.bss_conf.ftmr_params);
1306         sdata->vif.bss_conf.ftmr_params = NULL;
1307
1308         __sta_info_flush(sdata, true);
1309         ieee80211_free_keys(sdata, true);
1310
1311         sdata->vif.bss_conf.enable_beacon = false;
1312         sdata->beacon_rate_set = false;
1313         sdata->vif.bss_conf.ssid_len = 0;
1314         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1315         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1316
1317         if (sdata->wdev.cac_started) {
1318                 chandef = sdata->vif.bss_conf.chandef;
1319                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1320                 cfg80211_cac_event(sdata->dev, &chandef,
1321                                    NL80211_RADAR_CAC_ABORTED,
1322                                    GFP_KERNEL);
1323         }
1324
1325         drv_stop_ap(sdata->local, sdata);
1326
1327         /* free all potentially still buffered bcast frames */
1328         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1329         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1330
1331         mutex_lock(&local->mtx);
1332         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1333         ieee80211_vif_release_channel(sdata);
1334         mutex_unlock(&local->mtx);
1335
1336         return 0;
1337 }
1338
1339 static int sta_apply_auth_flags(struct ieee80211_local *local,
1340                                 struct sta_info *sta,
1341                                 u32 mask, u32 set)
1342 {
1343         int ret;
1344
1345         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1346             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1347             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1348                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1349                 if (ret)
1350                         return ret;
1351         }
1352
1353         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1354             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1355             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1356                 /*
1357                  * When peer becomes associated, init rate control as
1358                  * well. Some drivers require rate control initialized
1359                  * before drv_sta_state() is called.
1360                  */
1361                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1362                         rate_control_rate_init(sta);
1363
1364                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1365                 if (ret)
1366                         return ret;
1367         }
1368
1369         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1370                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1371                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1372                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1373                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1374                 else
1375                         ret = 0;
1376                 if (ret)
1377                         return ret;
1378         }
1379
1380         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1381             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1382             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1383                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1384                 if (ret)
1385                         return ret;
1386         }
1387
1388         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1389             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1390             test_sta_flag(sta, WLAN_STA_AUTH)) {
1391                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1392                 if (ret)
1393                         return ret;
1394         }
1395
1396         return 0;
1397 }
1398
1399 static void sta_apply_mesh_params(struct ieee80211_local *local,
1400                                   struct sta_info *sta,
1401                                   struct station_parameters *params)
1402 {
1403 #ifdef CONFIG_MAC80211_MESH
1404         struct ieee80211_sub_if_data *sdata = sta->sdata;
1405         u32 changed = 0;
1406
1407         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1408                 switch (params->plink_state) {
1409                 case NL80211_PLINK_ESTAB:
1410                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1411                                 changed = mesh_plink_inc_estab_count(sdata);
1412                         sta->mesh->plink_state = params->plink_state;
1413                         sta->mesh->aid = params->peer_aid;
1414
1415                         ieee80211_mps_sta_status_update(sta);
1416                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1417                                       sdata->u.mesh.mshcfg.power_mode);
1418
1419                         ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1420                         /* init at low value */
1421                         ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1422
1423                         break;
1424                 case NL80211_PLINK_LISTEN:
1425                 case NL80211_PLINK_BLOCKED:
1426                 case NL80211_PLINK_OPN_SNT:
1427                 case NL80211_PLINK_OPN_RCVD:
1428                 case NL80211_PLINK_CNF_RCVD:
1429                 case NL80211_PLINK_HOLDING:
1430                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1431                                 changed = mesh_plink_dec_estab_count(sdata);
1432                         sta->mesh->plink_state = params->plink_state;
1433
1434                         ieee80211_mps_sta_status_update(sta);
1435                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1436                                         NL80211_MESH_POWER_UNKNOWN);
1437                         break;
1438                 default:
1439                         /*  nothing  */
1440                         break;
1441                 }
1442         }
1443
1444         switch (params->plink_action) {
1445         case NL80211_PLINK_ACTION_NO_ACTION:
1446                 /* nothing */
1447                 break;
1448         case NL80211_PLINK_ACTION_OPEN:
1449                 changed |= mesh_plink_open(sta);
1450                 break;
1451         case NL80211_PLINK_ACTION_BLOCK:
1452                 changed |= mesh_plink_block(sta);
1453                 break;
1454         }
1455
1456         if (params->local_pm)
1457                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1458                                                           params->local_pm);
1459
1460         ieee80211_mbss_info_change_notify(sdata, changed);
1461 #endif
1462 }
1463
1464 static int sta_apply_parameters(struct ieee80211_local *local,
1465                                 struct sta_info *sta,
1466                                 struct station_parameters *params)
1467 {
1468         int ret = 0;
1469         struct ieee80211_supported_band *sband;
1470         struct ieee80211_sub_if_data *sdata = sta->sdata;
1471         u32 mask, set;
1472
1473         sband = ieee80211_get_sband(sdata);
1474         if (!sband)
1475                 return -EINVAL;
1476
1477         mask = params->sta_flags_mask;
1478         set = params->sta_flags_set;
1479
1480         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1481                 /*
1482                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1483                  * API but must follow AUTHENTICATED for driver state.
1484                  */
1485                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1486                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1487                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1488                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1489         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1490                 /*
1491                  * TDLS -- everything follows authorized, but
1492                  * only becoming authorized is possible, not
1493                  * going back
1494                  */
1495                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1496                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1497                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1498                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1499                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1500                 }
1501         }
1502
1503         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1504             local->hw.queues >= IEEE80211_NUM_ACS)
1505                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1506
1507         /* auth flags will be set later for TDLS,
1508          * and for unassociated stations that move to associated */
1509         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1510             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1511               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1512                 ret = sta_apply_auth_flags(local, sta, mask, set);
1513                 if (ret)
1514                         return ret;
1515         }
1516
1517         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1518                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1519                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1520                 else
1521                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1522         }
1523
1524         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1525                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1526                 if (set & BIT(NL80211_STA_FLAG_MFP))
1527                         set_sta_flag(sta, WLAN_STA_MFP);
1528                 else
1529                         clear_sta_flag(sta, WLAN_STA_MFP);
1530         }
1531
1532         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1533                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1534                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1535                 else
1536                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1537         }
1538
1539         /* mark TDLS channel switch support, if the AP allows it */
1540         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1541             !sdata->u.mgd.tdls_chan_switch_prohibited &&
1542             params->ext_capab_len >= 4 &&
1543             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1544                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1545
1546         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1547             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1548             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1549             params->ext_capab_len >= 8 &&
1550             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1551                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1552
1553         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1554                 sta->sta.uapsd_queues = params->uapsd_queues;
1555                 sta->sta.max_sp = params->max_sp;
1556         }
1557
1558         /* The sender might not have sent the last bit, consider it to be 0 */
1559         if (params->ext_capab_len >= 8) {
1560                 u8 val = (params->ext_capab[7] &
1561                           WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1562
1563                 /* we did get all the bits, take the MSB as well */
1564                 if (params->ext_capab_len >= 9) {
1565                         u8 val_msb = params->ext_capab[8] &
1566                                 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1567                         val_msb <<= 1;
1568                         val |= val_msb;
1569                 }
1570
1571                 switch (val) {
1572                 case 1:
1573                         sta->sta.max_amsdu_subframes = 32;
1574                         break;
1575                 case 2:
1576                         sta->sta.max_amsdu_subframes = 16;
1577                         break;
1578                 case 3:
1579                         sta->sta.max_amsdu_subframes = 8;
1580                         break;
1581                 default:
1582                         sta->sta.max_amsdu_subframes = 0;
1583                 }
1584         }
1585
1586         /*
1587          * cfg80211 validates this (1-2007) and allows setting the AID
1588          * only when creating a new station entry
1589          */
1590         if (params->aid)
1591                 sta->sta.aid = params->aid;
1592
1593         /*
1594          * Some of the following updates would be racy if called on an
1595          * existing station, via ieee80211_change_station(). However,
1596          * all such changes are rejected by cfg80211 except for updates
1597          * changing the supported rates on an existing but not yet used
1598          * TDLS peer.
1599          */
1600
1601         if (params->listen_interval >= 0)
1602                 sta->listen_interval = params->listen_interval;
1603
1604         if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1605                 sta->sta.txpwr.type = params->txpwr.type;
1606                 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1607                         sta->sta.txpwr.power = params->txpwr.power;
1608                 ret = drv_sta_set_txpwr(local, sdata, sta);
1609                 if (ret)
1610                         return ret;
1611         }
1612
1613         if (params->supported_rates && params->supported_rates_len) {
1614                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1615                                          sband, params->supported_rates,
1616                                          params->supported_rates_len,
1617                                          &sta->sta.supp_rates[sband->band]);
1618         }
1619
1620         if (params->ht_capa)
1621                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1622                                                   params->ht_capa, sta);
1623
1624         /* VHT can override some HT caps such as the A-MSDU max length */
1625         if (params->vht_capa)
1626                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1627                                                     params->vht_capa, sta);
1628
1629         if (params->he_capa)
1630                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1631                                                   (void *)params->he_capa,
1632                                                   params->he_capa_len,
1633                                                   (void *)params->he_6ghz_capa,
1634                                                   sta);
1635
1636         if (params->opmode_notif_used) {
1637                 /* returned value is only needed for rc update, but the
1638                  * rc isn't initialized here yet, so ignore it
1639                  */
1640                 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1641                                               sband->band);
1642         }
1643
1644         if (params->support_p2p_ps >= 0)
1645                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1646
1647         if (ieee80211_vif_is_mesh(&sdata->vif))
1648                 sta_apply_mesh_params(local, sta, params);
1649
1650         if (params->airtime_weight)
1651                 sta->airtime_weight = params->airtime_weight;
1652
1653         /* set the STA state after all sta info from usermode has been set */
1654         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1655             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1656                 ret = sta_apply_auth_flags(local, sta, mask, set);
1657                 if (ret)
1658                         return ret;
1659         }
1660
1661         return 0;
1662 }
1663
1664 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1665                                  const u8 *mac,
1666                                  struct station_parameters *params)
1667 {
1668         struct ieee80211_local *local = wiphy_priv(wiphy);
1669         struct sta_info *sta;
1670         struct ieee80211_sub_if_data *sdata;
1671         int err;
1672
1673         if (params->vlan) {
1674                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1675
1676                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1677                     sdata->vif.type != NL80211_IFTYPE_AP)
1678                         return -EINVAL;
1679         } else
1680                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1681
1682         if (ether_addr_equal(mac, sdata->vif.addr))
1683                 return -EINVAL;
1684
1685         if (!is_valid_ether_addr(mac))
1686                 return -EINVAL;
1687
1688         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1689             sdata->vif.type == NL80211_IFTYPE_STATION &&
1690             !sdata->u.mgd.associated)
1691                 return -EINVAL;
1692
1693         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1694         if (!sta)
1695                 return -ENOMEM;
1696
1697         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1698                 sta->sta.tdls = true;
1699
1700         err = sta_apply_parameters(local, sta, params);
1701         if (err) {
1702                 sta_info_free(local, sta);
1703                 return err;
1704         }
1705
1706         /*
1707          * for TDLS and for unassociated station, rate control should be
1708          * initialized only when rates are known and station is marked
1709          * authorized/associated
1710          */
1711         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1712             test_sta_flag(sta, WLAN_STA_ASSOC))
1713                 rate_control_rate_init(sta);
1714
1715         err = sta_info_insert_rcu(sta);
1716         if (err) {
1717                 rcu_read_unlock();
1718                 return err;
1719         }
1720
1721         rcu_read_unlock();
1722
1723         return 0;
1724 }
1725
1726 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1727                                  struct station_del_parameters *params)
1728 {
1729         struct ieee80211_sub_if_data *sdata;
1730
1731         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1732
1733         if (params->mac)
1734                 return sta_info_destroy_addr_bss(sdata, params->mac);
1735
1736         sta_info_flush(sdata);
1737         return 0;
1738 }
1739
1740 static int ieee80211_change_station(struct wiphy *wiphy,
1741                                     struct net_device *dev, const u8 *mac,
1742                                     struct station_parameters *params)
1743 {
1744         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1745         struct ieee80211_local *local = wiphy_priv(wiphy);
1746         struct sta_info *sta;
1747         struct ieee80211_sub_if_data *vlansdata;
1748         enum cfg80211_station_type statype;
1749         int err;
1750
1751         mutex_lock(&local->sta_mtx);
1752
1753         sta = sta_info_get_bss(sdata, mac);
1754         if (!sta) {
1755                 err = -ENOENT;
1756                 goto out_err;
1757         }
1758
1759         switch (sdata->vif.type) {
1760         case NL80211_IFTYPE_MESH_POINT:
1761                 if (sdata->u.mesh.user_mpm)
1762                         statype = CFG80211_STA_MESH_PEER_USER;
1763                 else
1764                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1765                 break;
1766         case NL80211_IFTYPE_ADHOC:
1767                 statype = CFG80211_STA_IBSS;
1768                 break;
1769         case NL80211_IFTYPE_STATION:
1770                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1771                         statype = CFG80211_STA_AP_STA;
1772                         break;
1773                 }
1774                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1775                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1776                 else
1777                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1778                 break;
1779         case NL80211_IFTYPE_AP:
1780         case NL80211_IFTYPE_AP_VLAN:
1781                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1782                         statype = CFG80211_STA_AP_CLIENT;
1783                 else
1784                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1785                 break;
1786         default:
1787                 err = -EOPNOTSUPP;
1788                 goto out_err;
1789         }
1790
1791         err = cfg80211_check_station_change(wiphy, params, statype);
1792         if (err)
1793                 goto out_err;
1794
1795         if (params->vlan && params->vlan != sta->sdata->dev) {
1796                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1797
1798                 if (params->vlan->ieee80211_ptr->use_4addr) {
1799                         if (vlansdata->u.vlan.sta) {
1800                                 err = -EBUSY;
1801                                 goto out_err;
1802                         }
1803
1804                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1805                         __ieee80211_check_fast_rx_iface(vlansdata);
1806                         drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1807                 }
1808
1809                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1810                     sta->sdata->u.vlan.sta) {
1811                         ieee80211_clear_fast_rx(sta);
1812                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1813                 }
1814
1815                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1816                         ieee80211_vif_dec_num_mcast(sta->sdata);
1817
1818                 sta->sdata = vlansdata;
1819                 ieee80211_check_fast_xmit(sta);
1820
1821                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1822                         ieee80211_vif_inc_num_mcast(sta->sdata);
1823                         cfg80211_send_layer2_update(sta->sdata->dev,
1824                                                     sta->sta.addr);
1825                 }
1826         }
1827
1828         err = sta_apply_parameters(local, sta, params);
1829         if (err)
1830                 goto out_err;
1831
1832         mutex_unlock(&local->sta_mtx);
1833
1834         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1835             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1836                 ieee80211_recalc_ps(local);
1837                 ieee80211_recalc_ps_vif(sdata);
1838         }
1839
1840         return 0;
1841 out_err:
1842         mutex_unlock(&local->sta_mtx);
1843         return err;
1844 }
1845
1846 #ifdef CONFIG_MAC80211_MESH
1847 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1848                                const u8 *dst, const u8 *next_hop)
1849 {
1850         struct ieee80211_sub_if_data *sdata;
1851         struct mesh_path *mpath;
1852         struct sta_info *sta;
1853
1854         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1855
1856         rcu_read_lock();
1857         sta = sta_info_get(sdata, next_hop);
1858         if (!sta) {
1859                 rcu_read_unlock();
1860                 return -ENOENT;
1861         }
1862
1863         mpath = mesh_path_add(sdata, dst);
1864         if (IS_ERR(mpath)) {
1865                 rcu_read_unlock();
1866                 return PTR_ERR(mpath);
1867         }
1868
1869         mesh_path_fix_nexthop(mpath, sta);
1870
1871         rcu_read_unlock();
1872         return 0;
1873 }
1874
1875 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1876                                const u8 *dst)
1877 {
1878         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1879
1880         if (dst)
1881                 return mesh_path_del(sdata, dst);
1882
1883         mesh_path_flush_by_iface(sdata);
1884         return 0;
1885 }
1886
1887 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1888                                   const u8 *dst, const u8 *next_hop)
1889 {
1890         struct ieee80211_sub_if_data *sdata;
1891         struct mesh_path *mpath;
1892         struct sta_info *sta;
1893
1894         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1895
1896         rcu_read_lock();
1897
1898         sta = sta_info_get(sdata, next_hop);
1899         if (!sta) {
1900                 rcu_read_unlock();
1901                 return -ENOENT;
1902         }
1903
1904         mpath = mesh_path_lookup(sdata, dst);
1905         if (!mpath) {
1906                 rcu_read_unlock();
1907                 return -ENOENT;
1908         }
1909
1910         mesh_path_fix_nexthop(mpath, sta);
1911
1912         rcu_read_unlock();
1913         return 0;
1914 }
1915
1916 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1917                             struct mpath_info *pinfo)
1918 {
1919         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1920
1921         if (next_hop_sta)
1922                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1923         else
1924                 eth_zero_addr(next_hop);
1925
1926         memset(pinfo, 0, sizeof(*pinfo));
1927
1928         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1929
1930         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1931                         MPATH_INFO_SN |
1932                         MPATH_INFO_METRIC |
1933                         MPATH_INFO_EXPTIME |
1934                         MPATH_INFO_DISCOVERY_TIMEOUT |
1935                         MPATH_INFO_DISCOVERY_RETRIES |
1936                         MPATH_INFO_FLAGS |
1937                         MPATH_INFO_HOP_COUNT |
1938                         MPATH_INFO_PATH_CHANGE;
1939
1940         pinfo->frame_qlen = mpath->frame_queue.qlen;
1941         pinfo->sn = mpath->sn;
1942         pinfo->metric = mpath->metric;
1943         if (time_before(jiffies, mpath->exp_time))
1944                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1945         pinfo->discovery_timeout =
1946                         jiffies_to_msecs(mpath->discovery_timeout);
1947         pinfo->discovery_retries = mpath->discovery_retries;
1948         if (mpath->flags & MESH_PATH_ACTIVE)
1949                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1950         if (mpath->flags & MESH_PATH_RESOLVING)
1951                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1952         if (mpath->flags & MESH_PATH_SN_VALID)
1953                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1954         if (mpath->flags & MESH_PATH_FIXED)
1955                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1956         if (mpath->flags & MESH_PATH_RESOLVED)
1957                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1958         pinfo->hop_count = mpath->hop_count;
1959         pinfo->path_change_count = mpath->path_change_count;
1960 }
1961
1962 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1963                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1964
1965 {
1966         struct ieee80211_sub_if_data *sdata;
1967         struct mesh_path *mpath;
1968
1969         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1970
1971         rcu_read_lock();
1972         mpath = mesh_path_lookup(sdata, dst);
1973         if (!mpath) {
1974                 rcu_read_unlock();
1975                 return -ENOENT;
1976         }
1977         memcpy(dst, mpath->dst, ETH_ALEN);
1978         mpath_set_pinfo(mpath, next_hop, pinfo);
1979         rcu_read_unlock();
1980         return 0;
1981 }
1982
1983 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1984                                 int idx, u8 *dst, u8 *next_hop,
1985                                 struct mpath_info *pinfo)
1986 {
1987         struct ieee80211_sub_if_data *sdata;
1988         struct mesh_path *mpath;
1989
1990         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1991
1992         rcu_read_lock();
1993         mpath = mesh_path_lookup_by_idx(sdata, idx);
1994         if (!mpath) {
1995                 rcu_read_unlock();
1996                 return -ENOENT;
1997         }
1998         memcpy(dst, mpath->dst, ETH_ALEN);
1999         mpath_set_pinfo(mpath, next_hop, pinfo);
2000         rcu_read_unlock();
2001         return 0;
2002 }
2003
2004 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2005                           struct mpath_info *pinfo)
2006 {
2007         memset(pinfo, 0, sizeof(*pinfo));
2008         memcpy(mpp, mpath->mpp, ETH_ALEN);
2009
2010         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2011 }
2012
2013 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2014                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2015
2016 {
2017         struct ieee80211_sub_if_data *sdata;
2018         struct mesh_path *mpath;
2019
2020         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2021
2022         rcu_read_lock();
2023         mpath = mpp_path_lookup(sdata, dst);
2024         if (!mpath) {
2025                 rcu_read_unlock();
2026                 return -ENOENT;
2027         }
2028         memcpy(dst, mpath->dst, ETH_ALEN);
2029         mpp_set_pinfo(mpath, mpp, pinfo);
2030         rcu_read_unlock();
2031         return 0;
2032 }
2033
2034 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2035                               int idx, u8 *dst, u8 *mpp,
2036                               struct mpath_info *pinfo)
2037 {
2038         struct ieee80211_sub_if_data *sdata;
2039         struct mesh_path *mpath;
2040
2041         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2042
2043         rcu_read_lock();
2044         mpath = mpp_path_lookup_by_idx(sdata, idx);
2045         if (!mpath) {
2046                 rcu_read_unlock();
2047                 return -ENOENT;
2048         }
2049         memcpy(dst, mpath->dst, ETH_ALEN);
2050         mpp_set_pinfo(mpath, mpp, pinfo);
2051         rcu_read_unlock();
2052         return 0;
2053 }
2054
2055 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2056                                 struct net_device *dev,
2057                                 struct mesh_config *conf)
2058 {
2059         struct ieee80211_sub_if_data *sdata;
2060         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2061
2062         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2063         return 0;
2064 }
2065
2066 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2067 {
2068         return (mask >> (parm-1)) & 0x1;
2069 }
2070
2071 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2072                 const struct mesh_setup *setup)
2073 {
2074         u8 *new_ie;
2075         const u8 *old_ie;
2076         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2077                                         struct ieee80211_sub_if_data, u.mesh);
2078         int i;
2079
2080         /* allocate information elements */
2081         new_ie = NULL;
2082         old_ie = ifmsh->ie;
2083
2084         if (setup->ie_len) {
2085                 new_ie = kmemdup(setup->ie, setup->ie_len,
2086                                 GFP_KERNEL);
2087                 if (!new_ie)
2088                         return -ENOMEM;
2089         }
2090         ifmsh->ie_len = setup->ie_len;
2091         ifmsh->ie = new_ie;
2092         kfree(old_ie);
2093
2094         /* now copy the rest of the setup parameters */
2095         ifmsh->mesh_id_len = setup->mesh_id_len;
2096         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2097         ifmsh->mesh_sp_id = setup->sync_method;
2098         ifmsh->mesh_pp_id = setup->path_sel_proto;
2099         ifmsh->mesh_pm_id = setup->path_metric;
2100         ifmsh->user_mpm = setup->user_mpm;
2101         ifmsh->mesh_auth_id = setup->auth_id;
2102         ifmsh->security = IEEE80211_MESH_SEC_NONE;
2103         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2104         if (setup->is_authenticated)
2105                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2106         if (setup->is_secure)
2107                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2108
2109         /* mcast rate setting in Mesh Node */
2110         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2111                                                 sizeof(setup->mcast_rate));
2112         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2113
2114         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2115         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2116
2117         sdata->beacon_rate_set = false;
2118         if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2119                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2120                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2121                         sdata->beacon_rateidx_mask[i] =
2122                                 setup->beacon_rate.control[i].legacy;
2123                         if (sdata->beacon_rateidx_mask[i])
2124                                 sdata->beacon_rate_set = true;
2125                 }
2126         }
2127
2128         return 0;
2129 }
2130
2131 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2132                                         struct net_device *dev, u32 mask,
2133                                         const struct mesh_config *nconf)
2134 {
2135         struct mesh_config *conf;
2136         struct ieee80211_sub_if_data *sdata;
2137         struct ieee80211_if_mesh *ifmsh;
2138
2139         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2140         ifmsh = &sdata->u.mesh;
2141
2142         /* Set the config options which we are interested in setting */
2143         conf = &(sdata->u.mesh.mshcfg);
2144         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2145                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2146         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2147                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2148         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2149                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2150         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2151                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2152         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2153                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2154         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2155                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2156         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2157                 conf->element_ttl = nconf->element_ttl;
2158         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2159                 if (ifmsh->user_mpm)
2160                         return -EBUSY;
2161                 conf->auto_open_plinks = nconf->auto_open_plinks;
2162         }
2163         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2164                 conf->dot11MeshNbrOffsetMaxNeighbor =
2165                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2166         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2167                 conf->dot11MeshHWMPmaxPREQretries =
2168                         nconf->dot11MeshHWMPmaxPREQretries;
2169         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2170                 conf->path_refresh_time = nconf->path_refresh_time;
2171         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2172                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2173         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2174                 conf->dot11MeshHWMPactivePathTimeout =
2175                         nconf->dot11MeshHWMPactivePathTimeout;
2176         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2177                 conf->dot11MeshHWMPpreqMinInterval =
2178                         nconf->dot11MeshHWMPpreqMinInterval;
2179         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2180                 conf->dot11MeshHWMPperrMinInterval =
2181                         nconf->dot11MeshHWMPperrMinInterval;
2182         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2183                            mask))
2184                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2185                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2186         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2187                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2188                 ieee80211_mesh_root_setup(ifmsh);
2189         }
2190         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2191                 /* our current gate announcement implementation rides on root
2192                  * announcements, so require this ifmsh to also be a root node
2193                  * */
2194                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2195                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2196                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2197                         ieee80211_mesh_root_setup(ifmsh);
2198                 }
2199                 conf->dot11MeshGateAnnouncementProtocol =
2200                         nconf->dot11MeshGateAnnouncementProtocol;
2201         }
2202         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2203                 conf->dot11MeshHWMPRannInterval =
2204                         nconf->dot11MeshHWMPRannInterval;
2205         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2206                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2207         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2208                 /* our RSSI threshold implementation is supported only for
2209                  * devices that report signal in dBm.
2210                  */
2211                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2212                         return -ENOTSUPP;
2213                 conf->rssi_threshold = nconf->rssi_threshold;
2214         }
2215         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2216                 conf->ht_opmode = nconf->ht_opmode;
2217                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2218                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2219         }
2220         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2221                 conf->dot11MeshHWMPactivePathToRootTimeout =
2222                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2223         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2224                 conf->dot11MeshHWMProotInterval =
2225                         nconf->dot11MeshHWMProotInterval;
2226         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2227                 conf->dot11MeshHWMPconfirmationInterval =
2228                         nconf->dot11MeshHWMPconfirmationInterval;
2229         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2230                 conf->power_mode = nconf->power_mode;
2231                 ieee80211_mps_local_status_update(sdata);
2232         }
2233         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2234                 conf->dot11MeshAwakeWindowDuration =
2235                         nconf->dot11MeshAwakeWindowDuration;
2236         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2237                 conf->plink_timeout = nconf->plink_timeout;
2238         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2239                 conf->dot11MeshConnectedToMeshGate =
2240                         nconf->dot11MeshConnectedToMeshGate;
2241         if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2242                 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2243         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2244                 conf->dot11MeshConnectedToAuthServer =
2245                         nconf->dot11MeshConnectedToAuthServer;
2246         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2247         return 0;
2248 }
2249
2250 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2251                                const struct mesh_config *conf,
2252                                const struct mesh_setup *setup)
2253 {
2254         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2255         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2256         int err;
2257
2258         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2259         err = copy_mesh_setup(ifmsh, setup);
2260         if (err)
2261                 return err;
2262
2263         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2264
2265         /* can mesh use other SMPS modes? */
2266         sdata->smps_mode = IEEE80211_SMPS_OFF;
2267         sdata->needed_rx_chains = sdata->local->rx_chains;
2268
2269         mutex_lock(&sdata->local->mtx);
2270         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2271                                         IEEE80211_CHANCTX_SHARED);
2272         mutex_unlock(&sdata->local->mtx);
2273         if (err)
2274                 return err;
2275
2276         return ieee80211_start_mesh(sdata);
2277 }
2278
2279 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2280 {
2281         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2282
2283         ieee80211_stop_mesh(sdata);
2284         mutex_lock(&sdata->local->mtx);
2285         ieee80211_vif_release_channel(sdata);
2286         kfree(sdata->u.mesh.ie);
2287         mutex_unlock(&sdata->local->mtx);
2288
2289         return 0;
2290 }
2291 #endif
2292
2293 static int ieee80211_change_bss(struct wiphy *wiphy,
2294                                 struct net_device *dev,
2295                                 struct bss_parameters *params)
2296 {
2297         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2298         struct ieee80211_supported_band *sband;
2299         u32 changed = 0;
2300
2301         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2302                 return -ENOENT;
2303
2304         sband = ieee80211_get_sband(sdata);
2305         if (!sband)
2306                 return -EINVAL;
2307
2308         if (params->use_cts_prot >= 0) {
2309                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2310                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2311         }
2312         if (params->use_short_preamble >= 0) {
2313                 sdata->vif.bss_conf.use_short_preamble =
2314                         params->use_short_preamble;
2315                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2316         }
2317
2318         if (!sdata->vif.bss_conf.use_short_slot &&
2319             (sband->band == NL80211_BAND_5GHZ ||
2320              sband->band == NL80211_BAND_6GHZ)) {
2321                 sdata->vif.bss_conf.use_short_slot = true;
2322                 changed |= BSS_CHANGED_ERP_SLOT;
2323         }
2324
2325         if (params->use_short_slot_time >= 0) {
2326                 sdata->vif.bss_conf.use_short_slot =
2327                         params->use_short_slot_time;
2328                 changed |= BSS_CHANGED_ERP_SLOT;
2329         }
2330
2331         if (params->basic_rates) {
2332                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2333                                          wiphy->bands[sband->band],
2334                                          params->basic_rates,
2335                                          params->basic_rates_len,
2336                                          &sdata->vif.bss_conf.basic_rates);
2337                 changed |= BSS_CHANGED_BASIC_RATES;
2338                 ieee80211_check_rate_mask(sdata);
2339         }
2340
2341         if (params->ap_isolate >= 0) {
2342                 if (params->ap_isolate)
2343                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2344                 else
2345                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2346                 ieee80211_check_fast_rx_iface(sdata);
2347         }
2348
2349         if (params->ht_opmode >= 0) {
2350                 sdata->vif.bss_conf.ht_operation_mode =
2351                         (u16) params->ht_opmode;
2352                 changed |= BSS_CHANGED_HT;
2353         }
2354
2355         if (params->p2p_ctwindow >= 0) {
2356                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2357                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2358                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2359                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2360                 changed |= BSS_CHANGED_P2P_PS;
2361         }
2362
2363         if (params->p2p_opp_ps > 0) {
2364                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2365                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2366                 changed |= BSS_CHANGED_P2P_PS;
2367         } else if (params->p2p_opp_ps == 0) {
2368                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2369                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2370                 changed |= BSS_CHANGED_P2P_PS;
2371         }
2372
2373         ieee80211_bss_info_change_notify(sdata, changed);
2374
2375         return 0;
2376 }
2377
2378 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2379                                     struct net_device *dev,
2380                                     struct ieee80211_txq_params *params)
2381 {
2382         struct ieee80211_local *local = wiphy_priv(wiphy);
2383         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2384         struct ieee80211_tx_queue_params p;
2385
2386         if (!local->ops->conf_tx)
2387                 return -EOPNOTSUPP;
2388
2389         if (local->hw.queues < IEEE80211_NUM_ACS)
2390                 return -EOPNOTSUPP;
2391
2392         memset(&p, 0, sizeof(p));
2393         p.aifs = params->aifs;
2394         p.cw_max = params->cwmax;
2395         p.cw_min = params->cwmin;
2396         p.txop = params->txop;
2397
2398         /*
2399          * Setting tx queue params disables u-apsd because it's only
2400          * called in master mode.
2401          */
2402         p.uapsd = false;
2403
2404         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2405
2406         sdata->tx_conf[params->ac] = p;
2407         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2408                 wiphy_debug(local->hw.wiphy,
2409                             "failed to set TX queue parameters for AC %d\n",
2410                             params->ac);
2411                 return -EINVAL;
2412         }
2413
2414         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2415
2416         return 0;
2417 }
2418
2419 #ifdef CONFIG_PM
2420 static int ieee80211_suspend(struct wiphy *wiphy,
2421                              struct cfg80211_wowlan *wowlan)
2422 {
2423         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2424 }
2425
2426 static int ieee80211_resume(struct wiphy *wiphy)
2427 {
2428         return __ieee80211_resume(wiphy_priv(wiphy));
2429 }
2430 #else
2431 #define ieee80211_suspend NULL
2432 #define ieee80211_resume NULL
2433 #endif
2434
2435 static int ieee80211_scan(struct wiphy *wiphy,
2436                           struct cfg80211_scan_request *req)
2437 {
2438         struct ieee80211_sub_if_data *sdata;
2439
2440         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2441
2442         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2443         case NL80211_IFTYPE_STATION:
2444         case NL80211_IFTYPE_ADHOC:
2445         case NL80211_IFTYPE_MESH_POINT:
2446         case NL80211_IFTYPE_P2P_CLIENT:
2447         case NL80211_IFTYPE_P2P_DEVICE:
2448                 break;
2449         case NL80211_IFTYPE_P2P_GO:
2450                 if (sdata->local->ops->hw_scan)
2451                         break;
2452                 /*
2453                  * FIXME: implement NoA while scanning in software,
2454                  * for now fall through to allow scanning only when
2455                  * beaconing hasn't been configured yet
2456                  */
2457                 fallthrough;
2458         case NL80211_IFTYPE_AP:
2459                 /*
2460                  * If the scan has been forced (and the driver supports
2461                  * forcing), don't care about being beaconing already.
2462                  * This will create problems to the attached stations (e.g. all
2463                  * the  frames sent while scanning on other channel will be
2464                  * lost)
2465                  */
2466                 if (sdata->u.ap.beacon &&
2467                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2468                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2469                         return -EOPNOTSUPP;
2470                 break;
2471         case NL80211_IFTYPE_NAN:
2472         default:
2473                 return -EOPNOTSUPP;
2474         }
2475
2476         return ieee80211_request_scan(sdata, req);
2477 }
2478
2479 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2480 {
2481         ieee80211_scan_cancel(wiphy_priv(wiphy));
2482 }
2483
2484 static int
2485 ieee80211_sched_scan_start(struct wiphy *wiphy,
2486                            struct net_device *dev,
2487                            struct cfg80211_sched_scan_request *req)
2488 {
2489         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2490
2491         if (!sdata->local->ops->sched_scan_start)
2492                 return -EOPNOTSUPP;
2493
2494         return ieee80211_request_sched_scan_start(sdata, req);
2495 }
2496
2497 static int
2498 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2499                           u64 reqid)
2500 {
2501         struct ieee80211_local *local = wiphy_priv(wiphy);
2502
2503         if (!local->ops->sched_scan_stop)
2504                 return -EOPNOTSUPP;
2505
2506         return ieee80211_request_sched_scan_stop(local);
2507 }
2508
2509 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2510                           struct cfg80211_auth_request *req)
2511 {
2512         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2513 }
2514
2515 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2516                            struct cfg80211_assoc_request *req)
2517 {
2518         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2519 }
2520
2521 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2522                             struct cfg80211_deauth_request *req)
2523 {
2524         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2525 }
2526
2527 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2528                               struct cfg80211_disassoc_request *req)
2529 {
2530         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2531 }
2532
2533 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2534                                struct cfg80211_ibss_params *params)
2535 {
2536         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2537 }
2538
2539 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2540 {
2541         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2542 }
2543
2544 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2545                               struct ocb_setup *setup)
2546 {
2547         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2548 }
2549
2550 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2551 {
2552         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2553 }
2554
2555 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2556                                     int rate[NUM_NL80211_BANDS])
2557 {
2558         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2559
2560         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2561                sizeof(int) * NUM_NL80211_BANDS);
2562
2563         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2564
2565         return 0;
2566 }
2567
2568 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2569 {
2570         struct ieee80211_local *local = wiphy_priv(wiphy);
2571         int err;
2572
2573         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2574                 ieee80211_check_fast_xmit_all(local);
2575
2576                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2577
2578                 if (err) {
2579                         ieee80211_check_fast_xmit_all(local);
2580                         return err;
2581                 }
2582         }
2583
2584         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2585             (changed & WIPHY_PARAM_DYN_ACK)) {
2586                 s16 coverage_class;
2587
2588                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2589                                         wiphy->coverage_class : -1;
2590                 err = drv_set_coverage_class(local, coverage_class);
2591
2592                 if (err)
2593                         return err;
2594         }
2595
2596         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2597                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2598
2599                 if (err)
2600                         return err;
2601         }
2602
2603         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2604                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2605                         return -EINVAL;
2606                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2607         }
2608         if (changed & WIPHY_PARAM_RETRY_LONG) {
2609                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2610                         return -EINVAL;
2611                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2612         }
2613         if (changed &
2614             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2615                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2616
2617         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2618                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2619                        WIPHY_PARAM_TXQ_QUANTUM))
2620                 ieee80211_txq_set_params(local);
2621
2622         return 0;
2623 }
2624
2625 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2626                                   struct wireless_dev *wdev,
2627                                   enum nl80211_tx_power_setting type, int mbm)
2628 {
2629         struct ieee80211_local *local = wiphy_priv(wiphy);
2630         struct ieee80211_sub_if_data *sdata;
2631         enum nl80211_tx_power_setting txp_type = type;
2632         bool update_txp_type = false;
2633         bool has_monitor = false;
2634
2635         if (wdev) {
2636                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2637
2638                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2639                         sdata = rtnl_dereference(local->monitor_sdata);
2640                         if (!sdata)
2641                                 return -EOPNOTSUPP;
2642                 }
2643
2644                 switch (type) {
2645                 case NL80211_TX_POWER_AUTOMATIC:
2646                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2647                         txp_type = NL80211_TX_POWER_LIMITED;
2648                         break;
2649                 case NL80211_TX_POWER_LIMITED:
2650                 case NL80211_TX_POWER_FIXED:
2651                         if (mbm < 0 || (mbm % 100))
2652                                 return -EOPNOTSUPP;
2653                         sdata->user_power_level = MBM_TO_DBM(mbm);
2654                         break;
2655                 }
2656
2657                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2658                         update_txp_type = true;
2659                         sdata->vif.bss_conf.txpower_type = txp_type;
2660                 }
2661
2662                 ieee80211_recalc_txpower(sdata, update_txp_type);
2663
2664                 return 0;
2665         }
2666
2667         switch (type) {
2668         case NL80211_TX_POWER_AUTOMATIC:
2669                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2670                 txp_type = NL80211_TX_POWER_LIMITED;
2671                 break;
2672         case NL80211_TX_POWER_LIMITED:
2673         case NL80211_TX_POWER_FIXED:
2674                 if (mbm < 0 || (mbm % 100))
2675                         return -EOPNOTSUPP;
2676                 local->user_power_level = MBM_TO_DBM(mbm);
2677                 break;
2678         }
2679
2680         mutex_lock(&local->iflist_mtx);
2681         list_for_each_entry(sdata, &local->interfaces, list) {
2682                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2683                         has_monitor = true;
2684                         continue;
2685                 }
2686                 sdata->user_power_level = local->user_power_level;
2687                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2688                         update_txp_type = true;
2689                 sdata->vif.bss_conf.txpower_type = txp_type;
2690         }
2691         list_for_each_entry(sdata, &local->interfaces, list) {
2692                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2693                         continue;
2694                 ieee80211_recalc_txpower(sdata, update_txp_type);
2695         }
2696         mutex_unlock(&local->iflist_mtx);
2697
2698         if (has_monitor) {
2699                 sdata = rtnl_dereference(local->monitor_sdata);
2700                 if (sdata) {
2701                         sdata->user_power_level = local->user_power_level;
2702                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2703                                 update_txp_type = true;
2704                         sdata->vif.bss_conf.txpower_type = txp_type;
2705
2706                         ieee80211_recalc_txpower(sdata, update_txp_type);
2707                 }
2708         }
2709
2710         return 0;
2711 }
2712
2713 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2714                                   struct wireless_dev *wdev,
2715                                   int *dbm)
2716 {
2717         struct ieee80211_local *local = wiphy_priv(wiphy);
2718         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2719
2720         if (local->ops->get_txpower)
2721                 return drv_get_txpower(local, sdata, dbm);
2722
2723         if (!local->use_chanctx)
2724                 *dbm = local->hw.conf.power_level;
2725         else
2726                 *dbm = sdata->vif.bss_conf.txpower;
2727
2728         return 0;
2729 }
2730
2731 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2732 {
2733         struct ieee80211_local *local = wiphy_priv(wiphy);
2734
2735         drv_rfkill_poll(local);
2736 }
2737
2738 #ifdef CONFIG_NL80211_TESTMODE
2739 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2740                                   struct wireless_dev *wdev,
2741                                   void *data, int len)
2742 {
2743         struct ieee80211_local *local = wiphy_priv(wiphy);
2744         struct ieee80211_vif *vif = NULL;
2745
2746         if (!local->ops->testmode_cmd)
2747                 return -EOPNOTSUPP;
2748
2749         if (wdev) {
2750                 struct ieee80211_sub_if_data *sdata;
2751
2752                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2753                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2754                         vif = &sdata->vif;
2755         }
2756
2757         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2758 }
2759
2760 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2761                                    struct sk_buff *skb,
2762                                    struct netlink_callback *cb,
2763                                    void *data, int len)
2764 {
2765         struct ieee80211_local *local = wiphy_priv(wiphy);
2766
2767         if (!local->ops->testmode_dump)
2768                 return -EOPNOTSUPP;
2769
2770         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2771 }
2772 #endif
2773
2774 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2775                                  enum ieee80211_smps_mode smps_mode)
2776 {
2777         const u8 *ap;
2778         enum ieee80211_smps_mode old_req;
2779         int err;
2780         struct sta_info *sta;
2781         bool tdls_peer_found = false;
2782
2783         lockdep_assert_held(&sdata->wdev.mtx);
2784
2785         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2786                 return -EINVAL;
2787
2788         old_req = sdata->u.mgd.req_smps;
2789         sdata->u.mgd.req_smps = smps_mode;
2790
2791         if (old_req == smps_mode &&
2792             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2793                 return 0;
2794
2795         /*
2796          * If not associated, or current association is not an HT
2797          * association, there's no need to do anything, just store
2798          * the new value until we associate.
2799          */
2800         if (!sdata->u.mgd.associated ||
2801             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2802                 return 0;
2803
2804         ap = sdata->u.mgd.associated->bssid;
2805
2806         rcu_read_lock();
2807         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2808                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2809                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2810                         continue;
2811
2812                 tdls_peer_found = true;
2813                 break;
2814         }
2815         rcu_read_unlock();
2816
2817         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2818                 if (tdls_peer_found || !sdata->u.mgd.powersave)
2819                         smps_mode = IEEE80211_SMPS_OFF;
2820                 else
2821                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2822         }
2823
2824         /* send SM PS frame to AP */
2825         err = ieee80211_send_smps_action(sdata, smps_mode,
2826                                          ap, ap);
2827         if (err)
2828                 sdata->u.mgd.req_smps = old_req;
2829         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2830                 ieee80211_teardown_tdls_peers(sdata);
2831
2832         return err;
2833 }
2834
2835 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2836                                     bool enabled, int timeout)
2837 {
2838         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2839         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2840
2841         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2842                 return -EOPNOTSUPP;
2843
2844         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2845                 return -EOPNOTSUPP;
2846
2847         if (enabled == sdata->u.mgd.powersave &&
2848             timeout == local->dynamic_ps_forced_timeout)
2849                 return 0;
2850
2851         sdata->u.mgd.powersave = enabled;
2852         local->dynamic_ps_forced_timeout = timeout;
2853
2854         /* no change, but if automatic follow powersave */
2855         sdata_lock(sdata);
2856         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2857         sdata_unlock(sdata);
2858
2859         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2860                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2861
2862         ieee80211_recalc_ps(local);
2863         ieee80211_recalc_ps_vif(sdata);
2864         ieee80211_check_fast_rx_iface(sdata);
2865
2866         return 0;
2867 }
2868
2869 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2870                                          struct net_device *dev,
2871                                          s32 rssi_thold, u32 rssi_hyst)
2872 {
2873         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2874         struct ieee80211_vif *vif = &sdata->vif;
2875         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2876
2877         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2878             rssi_hyst == bss_conf->cqm_rssi_hyst)
2879                 return 0;
2880
2881         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2882             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2883                 return -EOPNOTSUPP;
2884
2885         bss_conf->cqm_rssi_thold = rssi_thold;
2886         bss_conf->cqm_rssi_hyst = rssi_hyst;
2887         bss_conf->cqm_rssi_low = 0;
2888         bss_conf->cqm_rssi_high = 0;
2889         sdata->u.mgd.last_cqm_event_signal = 0;
2890
2891         /* tell the driver upon association, unless already associated */
2892         if (sdata->u.mgd.associated &&
2893             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2894                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2895
2896         return 0;
2897 }
2898
2899 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2900                                                struct net_device *dev,
2901                                                s32 rssi_low, s32 rssi_high)
2902 {
2903         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2904         struct ieee80211_vif *vif = &sdata->vif;
2905         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2906
2907         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2908                 return -EOPNOTSUPP;
2909
2910         bss_conf->cqm_rssi_low = rssi_low;
2911         bss_conf->cqm_rssi_high = rssi_high;
2912         bss_conf->cqm_rssi_thold = 0;
2913         bss_conf->cqm_rssi_hyst = 0;
2914         sdata->u.mgd.last_cqm_event_signal = 0;
2915
2916         /* tell the driver upon association, unless already associated */
2917         if (sdata->u.mgd.associated &&
2918             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2919                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2920
2921         return 0;
2922 }
2923
2924 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2925                                       struct net_device *dev,
2926                                       const u8 *addr,
2927                                       const struct cfg80211_bitrate_mask *mask)
2928 {
2929         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2930         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2931         int i, ret;
2932
2933         if (!ieee80211_sdata_running(sdata))
2934                 return -ENETDOWN;
2935
2936         /*
2937          * If active validate the setting and reject it if it doesn't leave
2938          * at least one basic rate usable, since we really have to be able
2939          * to send something, and if we're an AP we have to be able to do
2940          * so at a basic rate so that all clients can receive it.
2941          */
2942         if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2943             sdata->vif.bss_conf.chandef.chan) {
2944                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2945                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2946
2947                 if (!(mask->control[band].legacy & basic_rates))
2948                         return -EINVAL;
2949         }
2950
2951         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2952                 ret = drv_set_bitrate_mask(local, sdata, mask);
2953                 if (ret)
2954                         return ret;
2955         }
2956
2957         for (i = 0; i < NUM_NL80211_BANDS; i++) {
2958                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2959                 int j;
2960
2961                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2962                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2963                        sizeof(mask->control[i].ht_mcs));
2964                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2965                        mask->control[i].vht_mcs,
2966                        sizeof(mask->control[i].vht_mcs));
2967
2968                 sdata->rc_has_mcs_mask[i] = false;
2969                 sdata->rc_has_vht_mcs_mask[i] = false;
2970                 if (!sband)
2971                         continue;
2972
2973                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2974                         if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
2975                                 sdata->rc_has_mcs_mask[i] = true;
2976                                 break;
2977                         }
2978                 }
2979
2980                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2981                         if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
2982                                 sdata->rc_has_vht_mcs_mask[i] = true;
2983                                 break;
2984                         }
2985                 }
2986         }
2987
2988         return 0;
2989 }
2990
2991 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2992                                            struct net_device *dev,
2993                                            struct cfg80211_chan_def *chandef,
2994                                            u32 cac_time_ms)
2995 {
2996         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2997         struct ieee80211_local *local = sdata->local;
2998         int err;
2999
3000         mutex_lock(&local->mtx);
3001         if (!list_empty(&local->roc_list) || local->scanning) {
3002                 err = -EBUSY;
3003                 goto out_unlock;
3004         }
3005
3006         /* whatever, but channel contexts should not complain about that one */
3007         sdata->smps_mode = IEEE80211_SMPS_OFF;
3008         sdata->needed_rx_chains = local->rx_chains;
3009
3010         err = ieee80211_vif_use_channel(sdata, chandef,
3011                                         IEEE80211_CHANCTX_SHARED);
3012         if (err)
3013                 goto out_unlock;
3014
3015         ieee80211_queue_delayed_work(&sdata->local->hw,
3016                                      &sdata->dfs_cac_timer_work,
3017                                      msecs_to_jiffies(cac_time_ms));
3018
3019  out_unlock:
3020         mutex_unlock(&local->mtx);
3021         return err;
3022 }
3023
3024 static void ieee80211_end_cac(struct wiphy *wiphy,
3025                               struct net_device *dev)
3026 {
3027         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3028         struct ieee80211_local *local = sdata->local;
3029
3030         mutex_lock(&local->mtx);
3031         list_for_each_entry(sdata, &local->interfaces, list) {
3032                 /* it might be waiting for the local->mtx, but then
3033                  * by the time it gets it, sdata->wdev.cac_started
3034                  * will no longer be true
3035                  */
3036                 cancel_delayed_work(&sdata->dfs_cac_timer_work);
3037
3038                 if (sdata->wdev.cac_started) {
3039                         ieee80211_vif_release_channel(sdata);
3040                         sdata->wdev.cac_started = false;
3041                 }
3042         }
3043         mutex_unlock(&local->mtx);
3044 }
3045
3046 static struct cfg80211_beacon_data *
3047 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3048 {
3049         struct cfg80211_beacon_data *new_beacon;
3050         u8 *pos;
3051         int len;
3052
3053         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3054               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3055               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3056
3057         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3058         if (!new_beacon)
3059                 return NULL;
3060
3061         pos = (u8 *)(new_beacon + 1);
3062         if (beacon->head_len) {
3063                 new_beacon->head_len = beacon->head_len;
3064                 new_beacon->head = pos;
3065                 memcpy(pos, beacon->head, beacon->head_len);
3066                 pos += beacon->head_len;
3067         }
3068         if (beacon->tail_len) {
3069                 new_beacon->tail_len = beacon->tail_len;
3070                 new_beacon->tail = pos;
3071                 memcpy(pos, beacon->tail, beacon->tail_len);
3072                 pos += beacon->tail_len;
3073         }
3074         if (beacon->beacon_ies_len) {
3075                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3076                 new_beacon->beacon_ies = pos;
3077                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3078                 pos += beacon->beacon_ies_len;
3079         }
3080         if (beacon->proberesp_ies_len) {
3081                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3082                 new_beacon->proberesp_ies = pos;
3083                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3084                 pos += beacon->proberesp_ies_len;
3085         }
3086         if (beacon->assocresp_ies_len) {
3087                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3088                 new_beacon->assocresp_ies = pos;
3089                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3090                 pos += beacon->assocresp_ies_len;
3091         }
3092         if (beacon->probe_resp_len) {
3093                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3094                 new_beacon->probe_resp = pos;
3095                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3096                 pos += beacon->probe_resp_len;
3097         }
3098
3099         /* might copy -1, meaning no changes requested */
3100         new_beacon->ftm_responder = beacon->ftm_responder;
3101         if (beacon->lci) {
3102                 new_beacon->lci_len = beacon->lci_len;
3103                 new_beacon->lci = pos;
3104                 memcpy(pos, beacon->lci, beacon->lci_len);
3105                 pos += beacon->lci_len;
3106         }
3107         if (beacon->civicloc) {
3108                 new_beacon->civicloc_len = beacon->civicloc_len;
3109                 new_beacon->civicloc = pos;
3110                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3111                 pos += beacon->civicloc_len;
3112         }
3113
3114         return new_beacon;
3115 }
3116
3117 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3118 {
3119         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3120
3121         ieee80211_queue_work(&sdata->local->hw,
3122                              &sdata->csa_finalize_work);
3123 }
3124 EXPORT_SYMBOL(ieee80211_csa_finish);
3125
3126 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3127                                           u32 *changed)
3128 {
3129         int err;
3130
3131         switch (sdata->vif.type) {
3132         case NL80211_IFTYPE_AP:
3133                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3134                                               NULL);
3135                 kfree(sdata->u.ap.next_beacon);
3136                 sdata->u.ap.next_beacon = NULL;
3137
3138                 if (err < 0)
3139                         return err;
3140                 *changed |= err;
3141                 break;
3142         case NL80211_IFTYPE_ADHOC:
3143                 err = ieee80211_ibss_finish_csa(sdata);
3144                 if (err < 0)
3145                         return err;
3146                 *changed |= err;
3147                 break;
3148 #ifdef CONFIG_MAC80211_MESH
3149         case NL80211_IFTYPE_MESH_POINT:
3150                 err = ieee80211_mesh_finish_csa(sdata);
3151                 if (err < 0)
3152                         return err;
3153                 *changed |= err;
3154                 break;
3155 #endif
3156         default:
3157                 WARN_ON(1);
3158                 return -EINVAL;
3159         }
3160
3161         return 0;
3162 }
3163
3164 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3165 {
3166         struct ieee80211_local *local = sdata->local;
3167         u32 changed = 0;
3168         int err;
3169
3170         sdata_assert_lock(sdata);
3171         lockdep_assert_held(&local->mtx);
3172         lockdep_assert_held(&local->chanctx_mtx);
3173
3174         /*
3175          * using reservation isn't immediate as it may be deferred until later
3176          * with multi-vif. once reservation is complete it will re-schedule the
3177          * work with no reserved_chanctx so verify chandef to check if it
3178          * completed successfully
3179          */
3180
3181         if (sdata->reserved_chanctx) {
3182                 /*
3183                  * with multi-vif csa driver may call ieee80211_csa_finish()
3184                  * many times while waiting for other interfaces to use their
3185                  * reservations
3186                  */
3187                 if (sdata->reserved_ready)
3188                         return 0;
3189
3190                 return ieee80211_vif_use_reserved_context(sdata);
3191         }
3192
3193         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3194                                         &sdata->csa_chandef))
3195                 return -EINVAL;
3196
3197         sdata->vif.csa_active = false;
3198
3199         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3200         if (err)
3201                 return err;
3202
3203         ieee80211_bss_info_change_notify(sdata, changed);
3204
3205         if (sdata->csa_block_tx) {
3206                 ieee80211_wake_vif_queues(local, sdata,
3207                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3208                 sdata->csa_block_tx = false;
3209         }
3210
3211         err = drv_post_channel_switch(sdata);
3212         if (err)
3213                 return err;
3214
3215         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3216
3217         return 0;
3218 }
3219
3220 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3221 {
3222         if (__ieee80211_csa_finalize(sdata)) {
3223                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3224                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3225                                     GFP_KERNEL);
3226         }
3227 }
3228
3229 void ieee80211_csa_finalize_work(struct work_struct *work)
3230 {
3231         struct ieee80211_sub_if_data *sdata =
3232                 container_of(work, struct ieee80211_sub_if_data,
3233                              csa_finalize_work);
3234         struct ieee80211_local *local = sdata->local;
3235
3236         sdata_lock(sdata);
3237         mutex_lock(&local->mtx);
3238         mutex_lock(&local->chanctx_mtx);
3239
3240         /* AP might have been stopped while waiting for the lock. */
3241         if (!sdata->vif.csa_active)
3242                 goto unlock;
3243
3244         if (!ieee80211_sdata_running(sdata))
3245                 goto unlock;
3246
3247         ieee80211_csa_finalize(sdata);
3248
3249 unlock:
3250         mutex_unlock(&local->chanctx_mtx);
3251         mutex_unlock(&local->mtx);
3252         sdata_unlock(sdata);
3253 }
3254
3255 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3256                                     struct cfg80211_csa_settings *params,
3257                                     u32 *changed)
3258 {
3259         struct ieee80211_csa_settings csa = {};
3260         int err;
3261
3262         switch (sdata->vif.type) {
3263         case NL80211_IFTYPE_AP:
3264                 sdata->u.ap.next_beacon =
3265                         cfg80211_beacon_dup(&params->beacon_after);
3266                 if (!sdata->u.ap.next_beacon)
3267                         return -ENOMEM;
3268
3269                 /*
3270                  * With a count of 0, we don't have to wait for any
3271                  * TBTT before switching, so complete the CSA
3272                  * immediately.  In theory, with a count == 1 we
3273                  * should delay the switch until just before the next
3274                  * TBTT, but that would complicate things so we switch
3275                  * immediately too.  If we would delay the switch
3276                  * until the next TBTT, we would have to set the probe
3277                  * response here.
3278                  *
3279                  * TODO: A channel switch with count <= 1 without
3280                  * sending a CSA action frame is kind of useless,
3281                  * because the clients won't know we're changing
3282                  * channels.  The action frame must be implemented
3283                  * either here or in the userspace.
3284                  */
3285                 if (params->count <= 1)
3286                         break;
3287
3288                 if ((params->n_counter_offsets_beacon >
3289                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3290                     (params->n_counter_offsets_presp >
3291                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
3292                         return -EINVAL;
3293
3294                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3295                 csa.counter_offsets_presp = params->counter_offsets_presp;
3296                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3297                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3298                 csa.count = params->count;
3299
3300                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3301                 if (err < 0) {
3302                         kfree(sdata->u.ap.next_beacon);
3303                         return err;
3304                 }
3305                 *changed |= err;
3306
3307                 break;
3308         case NL80211_IFTYPE_ADHOC:
3309                 if (!sdata->vif.bss_conf.ibss_joined)
3310                         return -EINVAL;
3311
3312                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3313                         return -EINVAL;
3314
3315                 switch (params->chandef.width) {
3316                 case NL80211_CHAN_WIDTH_40:
3317                         if (cfg80211_get_chandef_type(&params->chandef) !=
3318                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3319                                 return -EINVAL;
3320                         break;
3321                 case NL80211_CHAN_WIDTH_5:
3322                 case NL80211_CHAN_WIDTH_10:
3323                 case NL80211_CHAN_WIDTH_20_NOHT:
3324                 case NL80211_CHAN_WIDTH_20:
3325                         break;
3326                 default:
3327                         return -EINVAL;
3328                 }
3329
3330                 /* changes into another band are not supported */
3331                 if (sdata->u.ibss.chandef.chan->band !=
3332                     params->chandef.chan->band)
3333                         return -EINVAL;
3334
3335                 /* see comments in the NL80211_IFTYPE_AP block */
3336                 if (params->count > 1) {
3337                         err = ieee80211_ibss_csa_beacon(sdata, params);
3338                         if (err < 0)
3339                                 return err;
3340                         *changed |= err;
3341                 }
3342
3343                 ieee80211_send_action_csa(sdata, params);
3344
3345                 break;
3346 #ifdef CONFIG_MAC80211_MESH
3347         case NL80211_IFTYPE_MESH_POINT: {
3348                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3349
3350                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3351                         return -EINVAL;
3352
3353                 /* changes into another band are not supported */
3354                 if (sdata->vif.bss_conf.chandef.chan->band !=
3355                     params->chandef.chan->band)
3356                         return -EINVAL;
3357
3358                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3359                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3360                         if (!ifmsh->pre_value)
3361                                 ifmsh->pre_value = 1;
3362                         else
3363                                 ifmsh->pre_value++;
3364                 }
3365
3366                 /* see comments in the NL80211_IFTYPE_AP block */
3367                 if (params->count > 1) {
3368                         err = ieee80211_mesh_csa_beacon(sdata, params);
3369                         if (err < 0) {
3370                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3371                                 return err;
3372                         }
3373                         *changed |= err;
3374                 }
3375
3376                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3377                         ieee80211_send_action_csa(sdata, params);
3378
3379                 break;
3380                 }
3381 #endif
3382         default:
3383                 return -EOPNOTSUPP;
3384         }
3385
3386         return 0;
3387 }
3388
3389 static int
3390 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3391                            struct cfg80211_csa_settings *params)
3392 {
3393         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3394         struct ieee80211_local *local = sdata->local;
3395         struct ieee80211_channel_switch ch_switch;
3396         struct ieee80211_chanctx_conf *conf;
3397         struct ieee80211_chanctx *chanctx;
3398         u32 changed = 0;
3399         int err;
3400
3401         sdata_assert_lock(sdata);
3402         lockdep_assert_held(&local->mtx);
3403
3404         if (!list_empty(&local->roc_list) || local->scanning)
3405                 return -EBUSY;
3406
3407         if (sdata->wdev.cac_started)
3408                 return -EBUSY;
3409
3410         if (cfg80211_chandef_identical(&params->chandef,
3411                                        &sdata->vif.bss_conf.chandef))
3412                 return -EINVAL;
3413
3414         /* don't allow another channel switch if one is already active. */
3415         if (sdata->vif.csa_active)
3416                 return -EBUSY;
3417
3418         mutex_lock(&local->chanctx_mtx);
3419         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3420                                          lockdep_is_held(&local->chanctx_mtx));
3421         if (!conf) {
3422                 err = -EBUSY;
3423                 goto out;
3424         }
3425
3426         if (params->chandef.chan->freq_offset) {
3427                 /* this may work, but is untested */
3428                 err = -EOPNOTSUPP;
3429                 goto out;
3430         }
3431
3432         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3433
3434         ch_switch.timestamp = 0;
3435         ch_switch.device_timestamp = 0;
3436         ch_switch.block_tx = params->block_tx;
3437         ch_switch.chandef = params->chandef;
3438         ch_switch.count = params->count;
3439
3440         err = drv_pre_channel_switch(sdata, &ch_switch);
3441         if (err)
3442                 goto out;
3443
3444         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3445                                             chanctx->mode,
3446                                             params->radar_required);
3447         if (err)
3448                 goto out;
3449
3450         /* if reservation is invalid then this will fail */
3451         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3452         if (err) {
3453                 ieee80211_vif_unreserve_chanctx(sdata);
3454                 goto out;
3455         }
3456
3457         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3458         if (err) {
3459                 ieee80211_vif_unreserve_chanctx(sdata);
3460                 goto out;
3461         }
3462
3463         sdata->csa_chandef = params->chandef;
3464         sdata->csa_block_tx = params->block_tx;
3465         sdata->vif.csa_active = true;
3466
3467         if (sdata->csa_block_tx)
3468                 ieee80211_stop_vif_queues(local, sdata,
3469                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3470
3471         cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3472                                           params->count, params->block_tx);
3473
3474         if (changed) {
3475                 ieee80211_bss_info_change_notify(sdata, changed);
3476                 drv_channel_switch_beacon(sdata, &params->chandef);
3477         } else {
3478                 /* if the beacon didn't change, we can finalize immediately */
3479                 ieee80211_csa_finalize(sdata);
3480         }
3481
3482 out:
3483         mutex_unlock(&local->chanctx_mtx);
3484         return err;
3485 }
3486
3487 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3488                              struct cfg80211_csa_settings *params)
3489 {
3490         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3491         struct ieee80211_local *local = sdata->local;
3492         int err;
3493
3494         mutex_lock(&local->mtx);
3495         err = __ieee80211_channel_switch(wiphy, dev, params);
3496         mutex_unlock(&local->mtx);
3497
3498         return err;
3499 }
3500
3501 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3502 {
3503         lockdep_assert_held(&local->mtx);
3504
3505         local->roc_cookie_counter++;
3506
3507         /* wow, you wrapped 64 bits ... more likely a bug */
3508         if (WARN_ON(local->roc_cookie_counter == 0))
3509                 local->roc_cookie_counter++;
3510
3511         return local->roc_cookie_counter;
3512 }
3513
3514 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3515                              u64 *cookie, gfp_t gfp)
3516 {
3517         unsigned long spin_flags;
3518         struct sk_buff *ack_skb;
3519         int id;
3520
3521         ack_skb = skb_copy(skb, gfp);
3522         if (!ack_skb)
3523                 return -ENOMEM;
3524
3525         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3526         id = idr_alloc(&local->ack_status_frames, ack_skb,
3527                        1, 0x2000, GFP_ATOMIC);
3528         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3529
3530         if (id < 0) {
3531                 kfree_skb(ack_skb);
3532                 return -ENOMEM;
3533         }
3534
3535         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3536
3537         *cookie = ieee80211_mgmt_tx_cookie(local);
3538         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3539
3540         return 0;
3541 }
3542
3543 static void
3544 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3545                                           struct wireless_dev *wdev,
3546                                           struct mgmt_frame_regs *upd)
3547 {
3548         struct ieee80211_local *local = wiphy_priv(wiphy);
3549         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3550         u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3551         u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3552         bool global_change, intf_change;
3553
3554         global_change =
3555                 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3556                 (local->rx_mcast_action_reg !=
3557                  !!(upd->global_mcast_stypes & action_mask));
3558         local->probe_req_reg = upd->global_stypes & preq_mask;
3559         local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3560
3561         intf_change = (sdata->vif.probe_req_reg !=
3562                        !!(upd->interface_stypes & preq_mask)) ||
3563                 (sdata->vif.rx_mcast_action_reg !=
3564                  !!(upd->interface_mcast_stypes & action_mask));
3565         sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3566         sdata->vif.rx_mcast_action_reg =
3567                 upd->interface_mcast_stypes & action_mask;
3568
3569         if (!local->open_count)
3570                 return;
3571
3572         if (intf_change && ieee80211_sdata_running(sdata))
3573                 drv_config_iface_filter(local, sdata,
3574                                         sdata->vif.probe_req_reg ?
3575                                                 FIF_PROBE_REQ : 0,
3576                                         FIF_PROBE_REQ);
3577
3578         if (global_change)
3579                 ieee80211_configure_filter(local);
3580 }
3581
3582 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3583 {
3584         struct ieee80211_local *local = wiphy_priv(wiphy);
3585
3586         if (local->started)
3587                 return -EOPNOTSUPP;
3588
3589         return drv_set_antenna(local, tx_ant, rx_ant);
3590 }
3591
3592 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3593 {
3594         struct ieee80211_local *local = wiphy_priv(wiphy);
3595
3596         return drv_get_antenna(local, tx_ant, rx_ant);
3597 }
3598
3599 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3600                                     struct net_device *dev,
3601                                     struct cfg80211_gtk_rekey_data *data)
3602 {
3603         struct ieee80211_local *local = wiphy_priv(wiphy);
3604         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3605
3606         if (!local->ops->set_rekey_data)
3607                 return -EOPNOTSUPP;
3608
3609         drv_set_rekey_data(local, sdata, data);
3610
3611         return 0;
3612 }
3613
3614 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3615                                   const u8 *peer, u64 *cookie)
3616 {
3617         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3618         struct ieee80211_local *local = sdata->local;
3619         struct ieee80211_qos_hdr *nullfunc;
3620         struct sk_buff *skb;
3621         int size = sizeof(*nullfunc);
3622         __le16 fc;
3623         bool qos;
3624         struct ieee80211_tx_info *info;
3625         struct sta_info *sta;
3626         struct ieee80211_chanctx_conf *chanctx_conf;
3627         enum nl80211_band band;
3628         int ret;
3629
3630         /* the lock is needed to assign the cookie later */
3631         mutex_lock(&local->mtx);
3632
3633         rcu_read_lock();
3634         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3635         if (WARN_ON(!chanctx_conf)) {
3636                 ret = -EINVAL;
3637                 goto unlock;
3638         }
3639         band = chanctx_conf->def.chan->band;
3640         sta = sta_info_get_bss(sdata, peer);
3641         if (sta) {
3642                 qos = sta->sta.wme;
3643         } else {
3644                 ret = -ENOLINK;
3645                 goto unlock;
3646         }
3647
3648         if (qos) {
3649                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3650                                  IEEE80211_STYPE_QOS_NULLFUNC |
3651                                  IEEE80211_FCTL_FROMDS);
3652         } else {
3653                 size -= 2;
3654                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3655                                  IEEE80211_STYPE_NULLFUNC |
3656                                  IEEE80211_FCTL_FROMDS);
3657         }
3658
3659         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3660         if (!skb) {
3661                 ret = -ENOMEM;
3662                 goto unlock;
3663         }
3664
3665         skb->dev = dev;
3666
3667         skb_reserve(skb, local->hw.extra_tx_headroom);
3668
3669         nullfunc = skb_put(skb, size);
3670         nullfunc->frame_control = fc;
3671         nullfunc->duration_id = 0;
3672         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3673         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3674         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3675         nullfunc->seq_ctrl = 0;
3676
3677         info = IEEE80211_SKB_CB(skb);
3678
3679         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3680                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3681         info->band = band;
3682
3683         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3684         skb->priority = 7;
3685         if (qos)
3686                 nullfunc->qos_ctrl = cpu_to_le16(7);
3687
3688         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3689         if (ret) {
3690                 kfree_skb(skb);
3691                 goto unlock;
3692         }
3693
3694         local_bh_disable();
3695         ieee80211_xmit(sdata, sta, skb);
3696         local_bh_enable();
3697
3698         ret = 0;
3699 unlock:
3700         rcu_read_unlock();
3701         mutex_unlock(&local->mtx);
3702
3703         return ret;
3704 }
3705
3706 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3707                                      struct wireless_dev *wdev,
3708                                      struct cfg80211_chan_def *chandef)
3709 {
3710         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3711         struct ieee80211_local *local = wiphy_priv(wiphy);
3712         struct ieee80211_chanctx_conf *chanctx_conf;
3713         int ret = -ENODATA;
3714
3715         rcu_read_lock();
3716         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3717         if (chanctx_conf) {
3718                 *chandef = sdata->vif.bss_conf.chandef;
3719                 ret = 0;
3720         } else if (local->open_count > 0 &&
3721                    local->open_count == local->monitors &&
3722                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3723                 if (local->use_chanctx)
3724                         *chandef = local->monitor_chandef;
3725                 else
3726                         *chandef = local->_oper_chandef;
3727                 ret = 0;
3728         }
3729         rcu_read_unlock();
3730
3731         return ret;
3732 }
3733
3734 #ifdef CONFIG_PM
3735 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3736 {
3737         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3738 }
3739 #endif
3740
3741 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3742                                  struct net_device *dev,
3743                                  struct cfg80211_qos_map *qos_map)
3744 {
3745         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3746         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3747
3748         if (qos_map) {
3749                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3750                 if (!new_qos_map)
3751                         return -ENOMEM;
3752                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3753         } else {
3754                 /* A NULL qos_map was passed to disable QoS mapping */
3755                 new_qos_map = NULL;
3756         }
3757
3758         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3759         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3760         if (old_qos_map)
3761                 kfree_rcu(old_qos_map, rcu_head);
3762
3763         return 0;
3764 }
3765
3766 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3767                                       struct net_device *dev,
3768                                       struct cfg80211_chan_def *chandef)
3769 {
3770         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3771         int ret;
3772         u32 changed = 0;
3773
3774         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3775         if (ret == 0)
3776                 ieee80211_bss_info_change_notify(sdata, changed);
3777
3778         return ret;
3779 }
3780
3781 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3782                                u8 tsid, const u8 *peer, u8 up,
3783                                u16 admitted_time)
3784 {
3785         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3786         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3787         int ac = ieee802_1d_to_ac[up];
3788
3789         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3790                 return -EOPNOTSUPP;
3791
3792         if (!(sdata->wmm_acm & BIT(up)))
3793                 return -EINVAL;
3794
3795         if (ifmgd->tx_tspec[ac].admitted_time)
3796                 return -EBUSY;
3797
3798         if (admitted_time) {
3799                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3800                 ifmgd->tx_tspec[ac].tsid = tsid;
3801                 ifmgd->tx_tspec[ac].up = up;
3802         }
3803
3804         return 0;
3805 }
3806
3807 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3808                                u8 tsid, const u8 *peer)
3809 {
3810         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3811         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3812         struct ieee80211_local *local = wiphy_priv(wiphy);
3813         int ac;
3814
3815         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3816                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3817
3818                 /* skip unused entries */
3819                 if (!tx_tspec->admitted_time)
3820                         continue;
3821
3822                 if (tx_tspec->tsid != tsid)
3823                         continue;
3824
3825                 /* due to this new packets will be reassigned to non-ACM ACs */
3826                 tx_tspec->up = -1;
3827
3828                 /* Make sure that all packets have been sent to avoid to
3829                  * restore the QoS params on packets that are still on the
3830                  * queues.
3831                  */
3832                 synchronize_net();
3833                 ieee80211_flush_queues(local, sdata, false);
3834
3835                 /* restore the normal QoS parameters
3836                  * (unconditionally to avoid races)
3837                  */
3838                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3839                 tx_tspec->downgraded = false;
3840                 ieee80211_sta_handle_tspec_ac_params(sdata);
3841
3842                 /* finally clear all the data */
3843                 memset(tx_tspec, 0, sizeof(*tx_tspec));
3844
3845                 return 0;
3846         }
3847
3848         return -ENOENT;
3849 }
3850
3851 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3852                                    u8 inst_id,
3853                                    enum nl80211_nan_func_term_reason reason,
3854                                    gfp_t gfp)
3855 {
3856         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3857         struct cfg80211_nan_func *func;
3858         u64 cookie;
3859
3860         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3861                 return;
3862
3863         spin_lock_bh(&sdata->u.nan.func_lock);
3864
3865         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3866         if (WARN_ON(!func)) {
3867                 spin_unlock_bh(&sdata->u.nan.func_lock);
3868                 return;
3869         }
3870
3871         cookie = func->cookie;
3872         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3873
3874         spin_unlock_bh(&sdata->u.nan.func_lock);
3875
3876         cfg80211_free_nan_func(func);
3877
3878         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3879                                      reason, cookie, gfp);
3880 }
3881 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3882
3883 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3884                               struct cfg80211_nan_match_params *match,
3885                               gfp_t gfp)
3886 {
3887         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3888         struct cfg80211_nan_func *func;
3889
3890         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3891                 return;
3892
3893         spin_lock_bh(&sdata->u.nan.func_lock);
3894
3895         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3896         if (WARN_ON(!func)) {
3897                 spin_unlock_bh(&sdata->u.nan.func_lock);
3898                 return;
3899         }
3900         match->cookie = func->cookie;
3901
3902         spin_unlock_bh(&sdata->u.nan.func_lock);
3903
3904         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3905 }
3906 EXPORT_SYMBOL(ieee80211_nan_func_match);
3907
3908 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3909                                               struct net_device *dev,
3910                                               const bool enabled)
3911 {
3912         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3913
3914         sdata->u.ap.multicast_to_unicast = enabled;
3915
3916         return 0;
3917 }
3918
3919 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3920                               struct txq_info *txqi)
3921 {
3922         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3923                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3924                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3925         }
3926
3927         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3928                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3929                 txqstats->backlog_packets = txqi->tin.backlog_packets;
3930         }
3931
3932         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3933                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3934                 txqstats->flows = txqi->tin.flows;
3935         }
3936
3937         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3938                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3939                 txqstats->drops = txqi->cstats.drop_count;
3940         }
3941
3942         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3943                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3944                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3945         }
3946
3947         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3948                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3949                 txqstats->overlimit = txqi->tin.overlimit;
3950         }
3951
3952         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3953                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3954                 txqstats->collisions = txqi->tin.collisions;
3955         }
3956
3957         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3958                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3959                 txqstats->tx_bytes = txqi->tin.tx_bytes;
3960         }
3961
3962         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3963                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3964                 txqstats->tx_packets = txqi->tin.tx_packets;
3965         }
3966 }
3967
3968 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3969                                    struct wireless_dev *wdev,
3970                                    struct cfg80211_txq_stats *txqstats)
3971 {
3972         struct ieee80211_local *local = wiphy_priv(wiphy);
3973         struct ieee80211_sub_if_data *sdata;
3974         int ret = 0;
3975
3976         if (!local->ops->wake_tx_queue)
3977                 return 1;
3978
3979         spin_lock_bh(&local->fq.lock);
3980         rcu_read_lock();
3981
3982         if (wdev) {
3983                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3984                 if (!sdata->vif.txq) {
3985                         ret = 1;
3986                         goto out;
3987                 }
3988                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3989         } else {
3990                 /* phy stats */
3991                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3992                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3993                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3994                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3995                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
3996                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3997                 txqstats->backlog_packets = local->fq.backlog;
3998                 txqstats->backlog_bytes = local->fq.memory_usage;
3999                 txqstats->overlimit = local->fq.overlimit;
4000                 txqstats->overmemory = local->fq.overmemory;
4001                 txqstats->collisions = local->fq.collisions;
4002                 txqstats->max_flows = local->fq.flows_cnt;
4003         }
4004
4005 out:
4006         rcu_read_unlock();
4007         spin_unlock_bh(&local->fq.lock);
4008
4009         return ret;
4010 }
4011
4012 static int
4013 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4014                                   struct net_device *dev,
4015                                   struct cfg80211_ftm_responder_stats *ftm_stats)
4016 {
4017         struct ieee80211_local *local = wiphy_priv(wiphy);
4018         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4019
4020         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4021 }
4022
4023 static int
4024 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4025                      struct cfg80211_pmsr_request *request)
4026 {
4027         struct ieee80211_local *local = wiphy_priv(wiphy);
4028         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4029
4030         return drv_start_pmsr(local, sdata, request);
4031 }
4032
4033 static void
4034 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4035                      struct cfg80211_pmsr_request *request)
4036 {
4037         struct ieee80211_local *local = wiphy_priv(wiphy);
4038         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4039
4040         return drv_abort_pmsr(local, sdata, request);
4041 }
4042
4043 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4044                                     struct net_device *dev,
4045                                     struct cfg80211_tid_config *tid_conf)
4046 {
4047         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4048         struct sta_info *sta;
4049         int ret;
4050
4051         if (!sdata->local->ops->set_tid_config)
4052                 return -EOPNOTSUPP;
4053
4054         if (!tid_conf->peer)
4055                 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4056
4057         mutex_lock(&sdata->local->sta_mtx);
4058         sta = sta_info_get_bss(sdata, tid_conf->peer);
4059         if (!sta) {
4060                 mutex_unlock(&sdata->local->sta_mtx);
4061                 return -ENOENT;
4062         }
4063
4064         ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4065         mutex_unlock(&sdata->local->sta_mtx);
4066
4067         return ret;
4068 }
4069
4070 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4071                                       struct net_device *dev,
4072                                       const u8 *peer, u8 tids)
4073 {
4074         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4075         struct sta_info *sta;
4076         int ret;
4077
4078         if (!sdata->local->ops->reset_tid_config)
4079                 return -EOPNOTSUPP;
4080
4081         if (!peer)
4082                 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4083
4084         mutex_lock(&sdata->local->sta_mtx);
4085         sta = sta_info_get_bss(sdata, peer);
4086         if (!sta) {
4087                 mutex_unlock(&sdata->local->sta_mtx);
4088                 return -ENOENT;
4089         }
4090
4091         ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4092         mutex_unlock(&sdata->local->sta_mtx);
4093
4094         return ret;
4095 }
4096
4097 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4098                                    struct cfg80211_sar_specs *sar)
4099 {
4100         struct ieee80211_local *local = wiphy_priv(wiphy);
4101
4102         if (!local->ops->set_sar_specs)
4103                 return -EOPNOTSUPP;
4104
4105         return local->ops->set_sar_specs(&local->hw, sar);
4106 }
4107
4108 const struct cfg80211_ops mac80211_config_ops = {
4109         .add_virtual_intf = ieee80211_add_iface,
4110         .del_virtual_intf = ieee80211_del_iface,
4111         .change_virtual_intf = ieee80211_change_iface,
4112         .start_p2p_device = ieee80211_start_p2p_device,
4113         .stop_p2p_device = ieee80211_stop_p2p_device,
4114         .add_key = ieee80211_add_key,
4115         .del_key = ieee80211_del_key,
4116         .get_key = ieee80211_get_key,
4117         .set_default_key = ieee80211_config_default_key,
4118         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4119         .set_default_beacon_key = ieee80211_config_default_beacon_key,
4120         .start_ap = ieee80211_start_ap,
4121         .change_beacon = ieee80211_change_beacon,
4122         .stop_ap = ieee80211_stop_ap,
4123         .add_station = ieee80211_add_station,
4124         .del_station = ieee80211_del_station,
4125         .change_station = ieee80211_change_station,
4126         .get_station = ieee80211_get_station,
4127         .dump_station = ieee80211_dump_station,
4128         .dump_survey = ieee80211_dump_survey,
4129 #ifdef CONFIG_MAC80211_MESH
4130         .add_mpath = ieee80211_add_mpath,
4131         .del_mpath = ieee80211_del_mpath,
4132         .change_mpath = ieee80211_change_mpath,
4133         .get_mpath = ieee80211_get_mpath,
4134         .dump_mpath = ieee80211_dump_mpath,
4135         .get_mpp = ieee80211_get_mpp,
4136         .dump_mpp = ieee80211_dump_mpp,
4137         .update_mesh_config = ieee80211_update_mesh_config,
4138         .get_mesh_config = ieee80211_get_mesh_config,
4139         .join_mesh = ieee80211_join_mesh,
4140         .leave_mesh = ieee80211_leave_mesh,
4141 #endif
4142         .join_ocb = ieee80211_join_ocb,
4143         .leave_ocb = ieee80211_leave_ocb,
4144         .change_bss = ieee80211_change_bss,
4145         .set_txq_params = ieee80211_set_txq_params,
4146         .set_monitor_channel = ieee80211_set_monitor_channel,
4147         .suspend = ieee80211_suspend,
4148         .resume = ieee80211_resume,
4149         .scan = ieee80211_scan,
4150         .abort_scan = ieee80211_abort_scan,
4151         .sched_scan_start = ieee80211_sched_scan_start,
4152         .sched_scan_stop = ieee80211_sched_scan_stop,
4153         .auth = ieee80211_auth,
4154         .assoc = ieee80211_assoc,
4155         .deauth = ieee80211_deauth,
4156         .disassoc = ieee80211_disassoc,
4157         .join_ibss = ieee80211_join_ibss,
4158         .leave_ibss = ieee80211_leave_ibss,
4159         .set_mcast_rate = ieee80211_set_mcast_rate,
4160         .set_wiphy_params = ieee80211_set_wiphy_params,
4161         .set_tx_power = ieee80211_set_tx_power,
4162         .get_tx_power = ieee80211_get_tx_power,
4163         .rfkill_poll = ieee80211_rfkill_poll,
4164         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4165         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4166         .set_power_mgmt = ieee80211_set_power_mgmt,
4167         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4168         .remain_on_channel = ieee80211_remain_on_channel,
4169         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4170         .mgmt_tx = ieee80211_mgmt_tx,
4171         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4172         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4173         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4174         .update_mgmt_frame_registrations =
4175                 ieee80211_update_mgmt_frame_registrations,
4176         .set_antenna = ieee80211_set_antenna,
4177         .get_antenna = ieee80211_get_antenna,
4178         .set_rekey_data = ieee80211_set_rekey_data,
4179         .tdls_oper = ieee80211_tdls_oper,
4180         .tdls_mgmt = ieee80211_tdls_mgmt,
4181         .tdls_channel_switch = ieee80211_tdls_channel_switch,
4182         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4183         .probe_client = ieee80211_probe_client,
4184         .set_noack_map = ieee80211_set_noack_map,
4185 #ifdef CONFIG_PM
4186         .set_wakeup = ieee80211_set_wakeup,
4187 #endif
4188         .get_channel = ieee80211_cfg_get_channel,
4189         .start_radar_detection = ieee80211_start_radar_detection,
4190         .end_cac = ieee80211_end_cac,
4191         .channel_switch = ieee80211_channel_switch,
4192         .set_qos_map = ieee80211_set_qos_map,
4193         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4194         .add_tx_ts = ieee80211_add_tx_ts,
4195         .del_tx_ts = ieee80211_del_tx_ts,
4196         .start_nan = ieee80211_start_nan,
4197         .stop_nan = ieee80211_stop_nan,
4198         .nan_change_conf = ieee80211_nan_change_conf,
4199         .add_nan_func = ieee80211_add_nan_func,
4200         .del_nan_func = ieee80211_del_nan_func,
4201         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4202         .tx_control_port = ieee80211_tx_control_port,
4203         .get_txq_stats = ieee80211_get_txq_stats,
4204         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4205         .start_pmsr = ieee80211_start_pmsr,
4206         .abort_pmsr = ieee80211_abort_pmsr,
4207         .probe_mesh_link = ieee80211_probe_mesh_link,
4208         .set_tid_config = ieee80211_set_tid_config,
4209         .reset_tid_config = ieee80211_reset_tid_config,
4210         .set_sar_specs = ieee80211_set_sar_specs,
4211 };