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 void sta_apply_airtime_params(struct ieee80211_local *local,
1465                                      struct sta_info *sta,
1466                                      struct station_parameters *params)
1467 {
1468         u8 ac;
1469
1470         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
1471                 struct airtime_sched_info *air_sched = &local->airtime[ac];
1472                 struct airtime_info *air_info = &sta->airtime[ac];
1473                 struct txq_info *txqi;
1474                 u8 tid;
1475
1476                 spin_lock_bh(&air_sched->lock);
1477                 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
1478                         if (air_info->weight == params->airtime_weight ||
1479                             !sta->sta.txq[tid] ||
1480                             ac != ieee80211_ac_from_tid(tid))
1481                                 continue;
1482
1483                         airtime_weight_set(air_info, params->airtime_weight);
1484
1485                         txqi = to_txq_info(sta->sta.txq[tid]);
1486                         if (RB_EMPTY_NODE(&txqi->schedule_order))
1487                                 continue;
1488
1489                         ieee80211_update_airtime_weight(local, air_sched,
1490                                                         0, true);
1491                 }
1492                 spin_unlock_bh(&air_sched->lock);
1493         }
1494 }
1495
1496 static int sta_apply_parameters(struct ieee80211_local *local,
1497                                 struct sta_info *sta,
1498                                 struct station_parameters *params)
1499 {
1500         int ret = 0;
1501         struct ieee80211_supported_band *sband;
1502         struct ieee80211_sub_if_data *sdata = sta->sdata;
1503         u32 mask, set;
1504
1505         sband = ieee80211_get_sband(sdata);
1506         if (!sband)
1507                 return -EINVAL;
1508
1509         mask = params->sta_flags_mask;
1510         set = params->sta_flags_set;
1511
1512         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1513                 /*
1514                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1515                  * API but must follow AUTHENTICATED for driver state.
1516                  */
1517                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1518                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1519                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1520                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1521         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1522                 /*
1523                  * TDLS -- everything follows authorized, but
1524                  * only becoming authorized is possible, not
1525                  * going back
1526                  */
1527                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1528                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1529                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1530                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1531                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1532                 }
1533         }
1534
1535         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1536             local->hw.queues >= IEEE80211_NUM_ACS)
1537                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1538
1539         /* auth flags will be set later for TDLS,
1540          * and for unassociated stations that move to associated */
1541         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1542             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1543               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1544                 ret = sta_apply_auth_flags(local, sta, mask, set);
1545                 if (ret)
1546                         return ret;
1547         }
1548
1549         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1550                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1551                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1552                 else
1553                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1554         }
1555
1556         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1557                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1558                 if (set & BIT(NL80211_STA_FLAG_MFP))
1559                         set_sta_flag(sta, WLAN_STA_MFP);
1560                 else
1561                         clear_sta_flag(sta, WLAN_STA_MFP);
1562         }
1563
1564         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1565                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1566                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1567                 else
1568                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1569         }
1570
1571         /* mark TDLS channel switch support, if the AP allows it */
1572         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1573             !sdata->u.mgd.tdls_chan_switch_prohibited &&
1574             params->ext_capab_len >= 4 &&
1575             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1576                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1577
1578         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1579             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1580             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1581             params->ext_capab_len >= 8 &&
1582             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1583                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1584
1585         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1586                 sta->sta.uapsd_queues = params->uapsd_queues;
1587                 sta->sta.max_sp = params->max_sp;
1588         }
1589
1590         /* The sender might not have sent the last bit, consider it to be 0 */
1591         if (params->ext_capab_len >= 8) {
1592                 u8 val = (params->ext_capab[7] &
1593                           WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1594
1595                 /* we did get all the bits, take the MSB as well */
1596                 if (params->ext_capab_len >= 9) {
1597                         u8 val_msb = params->ext_capab[8] &
1598                                 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1599                         val_msb <<= 1;
1600                         val |= val_msb;
1601                 }
1602
1603                 switch (val) {
1604                 case 1:
1605                         sta->sta.max_amsdu_subframes = 32;
1606                         break;
1607                 case 2:
1608                         sta->sta.max_amsdu_subframes = 16;
1609                         break;
1610                 case 3:
1611                         sta->sta.max_amsdu_subframes = 8;
1612                         break;
1613                 default:
1614                         sta->sta.max_amsdu_subframes = 0;
1615                 }
1616         }
1617
1618         /*
1619          * cfg80211 validates this (1-2007) and allows setting the AID
1620          * only when creating a new station entry
1621          */
1622         if (params->aid)
1623                 sta->sta.aid = params->aid;
1624
1625         /*
1626          * Some of the following updates would be racy if called on an
1627          * existing station, via ieee80211_change_station(). However,
1628          * all such changes are rejected by cfg80211 except for updates
1629          * changing the supported rates on an existing but not yet used
1630          * TDLS peer.
1631          */
1632
1633         if (params->listen_interval >= 0)
1634                 sta->listen_interval = params->listen_interval;
1635
1636         if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1637                 sta->sta.txpwr.type = params->txpwr.type;
1638                 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1639                         sta->sta.txpwr.power = params->txpwr.power;
1640                 ret = drv_sta_set_txpwr(local, sdata, sta);
1641                 if (ret)
1642                         return ret;
1643         }
1644
1645         if (params->supported_rates && params->supported_rates_len) {
1646                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1647                                          sband, params->supported_rates,
1648                                          params->supported_rates_len,
1649                                          &sta->sta.supp_rates[sband->band]);
1650         }
1651
1652         if (params->ht_capa)
1653                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1654                                                   params->ht_capa, sta);
1655
1656         /* VHT can override some HT caps such as the A-MSDU max length */
1657         if (params->vht_capa)
1658                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1659                                                     params->vht_capa, sta);
1660
1661         if (params->he_capa)
1662                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1663                                                   (void *)params->he_capa,
1664                                                   params->he_capa_len,
1665                                                   (void *)params->he_6ghz_capa,
1666                                                   sta);
1667
1668         if (params->opmode_notif_used) {
1669                 /* returned value is only needed for rc update, but the
1670                  * rc isn't initialized here yet, so ignore it
1671                  */
1672                 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1673                                               sband->band);
1674         }
1675
1676         if (params->support_p2p_ps >= 0)
1677                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1678
1679         if (ieee80211_vif_is_mesh(&sdata->vif))
1680                 sta_apply_mesh_params(local, sta, params);
1681
1682         if (params->airtime_weight)
1683                 sta_apply_airtime_params(local, sta, params);
1684
1685
1686         /* set the STA state after all sta info from usermode has been set */
1687         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1688             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1689                 ret = sta_apply_auth_flags(local, sta, mask, set);
1690                 if (ret)
1691                         return ret;
1692         }
1693
1694         return 0;
1695 }
1696
1697 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1698                                  const u8 *mac,
1699                                  struct station_parameters *params)
1700 {
1701         struct ieee80211_local *local = wiphy_priv(wiphy);
1702         struct sta_info *sta;
1703         struct ieee80211_sub_if_data *sdata;
1704         int err;
1705
1706         if (params->vlan) {
1707                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1708
1709                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1710                     sdata->vif.type != NL80211_IFTYPE_AP)
1711                         return -EINVAL;
1712         } else
1713                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1714
1715         if (ether_addr_equal(mac, sdata->vif.addr))
1716                 return -EINVAL;
1717
1718         if (!is_valid_ether_addr(mac))
1719                 return -EINVAL;
1720
1721         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1722             sdata->vif.type == NL80211_IFTYPE_STATION &&
1723             !sdata->u.mgd.associated)
1724                 return -EINVAL;
1725
1726         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1727         if (!sta)
1728                 return -ENOMEM;
1729
1730         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1731                 sta->sta.tdls = true;
1732
1733         err = sta_apply_parameters(local, sta, params);
1734         if (err) {
1735                 sta_info_free(local, sta);
1736                 return err;
1737         }
1738
1739         /*
1740          * for TDLS and for unassociated station, rate control should be
1741          * initialized only when rates are known and station is marked
1742          * authorized/associated
1743          */
1744         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1745             test_sta_flag(sta, WLAN_STA_ASSOC))
1746                 rate_control_rate_init(sta);
1747
1748         return sta_info_insert(sta);
1749 }
1750
1751 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1752                                  struct station_del_parameters *params)
1753 {
1754         struct ieee80211_sub_if_data *sdata;
1755
1756         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1757
1758         if (params->mac)
1759                 return sta_info_destroy_addr_bss(sdata, params->mac);
1760
1761         sta_info_flush(sdata);
1762         return 0;
1763 }
1764
1765 static int ieee80211_change_station(struct wiphy *wiphy,
1766                                     struct net_device *dev, const u8 *mac,
1767                                     struct station_parameters *params)
1768 {
1769         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1770         struct ieee80211_local *local = wiphy_priv(wiphy);
1771         struct sta_info *sta;
1772         struct ieee80211_sub_if_data *vlansdata;
1773         enum cfg80211_station_type statype;
1774         int err;
1775
1776         mutex_lock(&local->sta_mtx);
1777
1778         sta = sta_info_get_bss(sdata, mac);
1779         if (!sta) {
1780                 err = -ENOENT;
1781                 goto out_err;
1782         }
1783
1784         switch (sdata->vif.type) {
1785         case NL80211_IFTYPE_MESH_POINT:
1786                 if (sdata->u.mesh.user_mpm)
1787                         statype = CFG80211_STA_MESH_PEER_USER;
1788                 else
1789                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1790                 break;
1791         case NL80211_IFTYPE_ADHOC:
1792                 statype = CFG80211_STA_IBSS;
1793                 break;
1794         case NL80211_IFTYPE_STATION:
1795                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1796                         statype = CFG80211_STA_AP_STA;
1797                         break;
1798                 }
1799                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1800                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1801                 else
1802                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1803                 break;
1804         case NL80211_IFTYPE_AP:
1805         case NL80211_IFTYPE_AP_VLAN:
1806                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1807                         statype = CFG80211_STA_AP_CLIENT;
1808                 else
1809                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1810                 break;
1811         default:
1812                 err = -EOPNOTSUPP;
1813                 goto out_err;
1814         }
1815
1816         err = cfg80211_check_station_change(wiphy, params, statype);
1817         if (err)
1818                 goto out_err;
1819
1820         if (params->vlan && params->vlan != sta->sdata->dev) {
1821                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1822
1823                 if (params->vlan->ieee80211_ptr->use_4addr) {
1824                         if (vlansdata->u.vlan.sta) {
1825                                 err = -EBUSY;
1826                                 goto out_err;
1827                         }
1828
1829                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1830                         __ieee80211_check_fast_rx_iface(vlansdata);
1831                         drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1832                 }
1833
1834                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1835                     sta->sdata->u.vlan.sta) {
1836                         ieee80211_clear_fast_rx(sta);
1837                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1838                 }
1839
1840                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1841                         ieee80211_vif_dec_num_mcast(sta->sdata);
1842
1843                 sta->sdata = vlansdata;
1844                 ieee80211_check_fast_xmit(sta);
1845
1846                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1847                         ieee80211_vif_inc_num_mcast(sta->sdata);
1848                         cfg80211_send_layer2_update(sta->sdata->dev,
1849                                                     sta->sta.addr);
1850                 }
1851         }
1852
1853         err = sta_apply_parameters(local, sta, params);
1854         if (err)
1855                 goto out_err;
1856
1857         mutex_unlock(&local->sta_mtx);
1858
1859         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1860             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1861                 ieee80211_recalc_ps(local);
1862                 ieee80211_recalc_ps_vif(sdata);
1863         }
1864
1865         return 0;
1866 out_err:
1867         mutex_unlock(&local->sta_mtx);
1868         return err;
1869 }
1870
1871 #ifdef CONFIG_MAC80211_MESH
1872 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1873                                const u8 *dst, const u8 *next_hop)
1874 {
1875         struct ieee80211_sub_if_data *sdata;
1876         struct mesh_path *mpath;
1877         struct sta_info *sta;
1878
1879         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1880
1881         rcu_read_lock();
1882         sta = sta_info_get(sdata, next_hop);
1883         if (!sta) {
1884                 rcu_read_unlock();
1885                 return -ENOENT;
1886         }
1887
1888         mpath = mesh_path_add(sdata, dst);
1889         if (IS_ERR(mpath)) {
1890                 rcu_read_unlock();
1891                 return PTR_ERR(mpath);
1892         }
1893
1894         mesh_path_fix_nexthop(mpath, sta);
1895
1896         rcu_read_unlock();
1897         return 0;
1898 }
1899
1900 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1901                                const u8 *dst)
1902 {
1903         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1904
1905         if (dst)
1906                 return mesh_path_del(sdata, dst);
1907
1908         mesh_path_flush_by_iface(sdata);
1909         return 0;
1910 }
1911
1912 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1913                                   const u8 *dst, const u8 *next_hop)
1914 {
1915         struct ieee80211_sub_if_data *sdata;
1916         struct mesh_path *mpath;
1917         struct sta_info *sta;
1918
1919         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1920
1921         rcu_read_lock();
1922
1923         sta = sta_info_get(sdata, next_hop);
1924         if (!sta) {
1925                 rcu_read_unlock();
1926                 return -ENOENT;
1927         }
1928
1929         mpath = mesh_path_lookup(sdata, dst);
1930         if (!mpath) {
1931                 rcu_read_unlock();
1932                 return -ENOENT;
1933         }
1934
1935         mesh_path_fix_nexthop(mpath, sta);
1936
1937         rcu_read_unlock();
1938         return 0;
1939 }
1940
1941 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1942                             struct mpath_info *pinfo)
1943 {
1944         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1945
1946         if (next_hop_sta)
1947                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1948         else
1949                 eth_zero_addr(next_hop);
1950
1951         memset(pinfo, 0, sizeof(*pinfo));
1952
1953         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1954
1955         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1956                         MPATH_INFO_SN |
1957                         MPATH_INFO_METRIC |
1958                         MPATH_INFO_EXPTIME |
1959                         MPATH_INFO_DISCOVERY_TIMEOUT |
1960                         MPATH_INFO_DISCOVERY_RETRIES |
1961                         MPATH_INFO_FLAGS |
1962                         MPATH_INFO_HOP_COUNT |
1963                         MPATH_INFO_PATH_CHANGE;
1964
1965         pinfo->frame_qlen = mpath->frame_queue.qlen;
1966         pinfo->sn = mpath->sn;
1967         pinfo->metric = mpath->metric;
1968         if (time_before(jiffies, mpath->exp_time))
1969                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1970         pinfo->discovery_timeout =
1971                         jiffies_to_msecs(mpath->discovery_timeout);
1972         pinfo->discovery_retries = mpath->discovery_retries;
1973         if (mpath->flags & MESH_PATH_ACTIVE)
1974                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1975         if (mpath->flags & MESH_PATH_RESOLVING)
1976                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1977         if (mpath->flags & MESH_PATH_SN_VALID)
1978                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1979         if (mpath->flags & MESH_PATH_FIXED)
1980                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1981         if (mpath->flags & MESH_PATH_RESOLVED)
1982                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1983         pinfo->hop_count = mpath->hop_count;
1984         pinfo->path_change_count = mpath->path_change_count;
1985 }
1986
1987 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1988                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1989
1990 {
1991         struct ieee80211_sub_if_data *sdata;
1992         struct mesh_path *mpath;
1993
1994         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1995
1996         rcu_read_lock();
1997         mpath = mesh_path_lookup(sdata, dst);
1998         if (!mpath) {
1999                 rcu_read_unlock();
2000                 return -ENOENT;
2001         }
2002         memcpy(dst, mpath->dst, ETH_ALEN);
2003         mpath_set_pinfo(mpath, next_hop, pinfo);
2004         rcu_read_unlock();
2005         return 0;
2006 }
2007
2008 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2009                                 int idx, u8 *dst, u8 *next_hop,
2010                                 struct mpath_info *pinfo)
2011 {
2012         struct ieee80211_sub_if_data *sdata;
2013         struct mesh_path *mpath;
2014
2015         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2016
2017         rcu_read_lock();
2018         mpath = mesh_path_lookup_by_idx(sdata, idx);
2019         if (!mpath) {
2020                 rcu_read_unlock();
2021                 return -ENOENT;
2022         }
2023         memcpy(dst, mpath->dst, ETH_ALEN);
2024         mpath_set_pinfo(mpath, next_hop, pinfo);
2025         rcu_read_unlock();
2026         return 0;
2027 }
2028
2029 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2030                           struct mpath_info *pinfo)
2031 {
2032         memset(pinfo, 0, sizeof(*pinfo));
2033         memcpy(mpp, mpath->mpp, ETH_ALEN);
2034
2035         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2036 }
2037
2038 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2039                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2040
2041 {
2042         struct ieee80211_sub_if_data *sdata;
2043         struct mesh_path *mpath;
2044
2045         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2046
2047         rcu_read_lock();
2048         mpath = mpp_path_lookup(sdata, dst);
2049         if (!mpath) {
2050                 rcu_read_unlock();
2051                 return -ENOENT;
2052         }
2053         memcpy(dst, mpath->dst, ETH_ALEN);
2054         mpp_set_pinfo(mpath, mpp, pinfo);
2055         rcu_read_unlock();
2056         return 0;
2057 }
2058
2059 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2060                               int idx, u8 *dst, u8 *mpp,
2061                               struct mpath_info *pinfo)
2062 {
2063         struct ieee80211_sub_if_data *sdata;
2064         struct mesh_path *mpath;
2065
2066         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2067
2068         rcu_read_lock();
2069         mpath = mpp_path_lookup_by_idx(sdata, idx);
2070         if (!mpath) {
2071                 rcu_read_unlock();
2072                 return -ENOENT;
2073         }
2074         memcpy(dst, mpath->dst, ETH_ALEN);
2075         mpp_set_pinfo(mpath, mpp, pinfo);
2076         rcu_read_unlock();
2077         return 0;
2078 }
2079
2080 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2081                                 struct net_device *dev,
2082                                 struct mesh_config *conf)
2083 {
2084         struct ieee80211_sub_if_data *sdata;
2085         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2086
2087         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2088         return 0;
2089 }
2090
2091 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2092 {
2093         return (mask >> (parm-1)) & 0x1;
2094 }
2095
2096 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2097                 const struct mesh_setup *setup)
2098 {
2099         u8 *new_ie;
2100         const u8 *old_ie;
2101         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2102                                         struct ieee80211_sub_if_data, u.mesh);
2103         int i;
2104
2105         /* allocate information elements */
2106         new_ie = NULL;
2107         old_ie = ifmsh->ie;
2108
2109         if (setup->ie_len) {
2110                 new_ie = kmemdup(setup->ie, setup->ie_len,
2111                                 GFP_KERNEL);
2112                 if (!new_ie)
2113                         return -ENOMEM;
2114         }
2115         ifmsh->ie_len = setup->ie_len;
2116         ifmsh->ie = new_ie;
2117         kfree(old_ie);
2118
2119         /* now copy the rest of the setup parameters */
2120         ifmsh->mesh_id_len = setup->mesh_id_len;
2121         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2122         ifmsh->mesh_sp_id = setup->sync_method;
2123         ifmsh->mesh_pp_id = setup->path_sel_proto;
2124         ifmsh->mesh_pm_id = setup->path_metric;
2125         ifmsh->user_mpm = setup->user_mpm;
2126         ifmsh->mesh_auth_id = setup->auth_id;
2127         ifmsh->security = IEEE80211_MESH_SEC_NONE;
2128         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2129         if (setup->is_authenticated)
2130                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2131         if (setup->is_secure)
2132                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2133
2134         /* mcast rate setting in Mesh Node */
2135         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2136                                                 sizeof(setup->mcast_rate));
2137         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2138
2139         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2140         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2141
2142         sdata->beacon_rate_set = false;
2143         if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2144                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2145                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2146                         sdata->beacon_rateidx_mask[i] =
2147                                 setup->beacon_rate.control[i].legacy;
2148                         if (sdata->beacon_rateidx_mask[i])
2149                                 sdata->beacon_rate_set = true;
2150                 }
2151         }
2152
2153         return 0;
2154 }
2155
2156 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2157                                         struct net_device *dev, u32 mask,
2158                                         const struct mesh_config *nconf)
2159 {
2160         struct mesh_config *conf;
2161         struct ieee80211_sub_if_data *sdata;
2162         struct ieee80211_if_mesh *ifmsh;
2163
2164         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2165         ifmsh = &sdata->u.mesh;
2166
2167         /* Set the config options which we are interested in setting */
2168         conf = &(sdata->u.mesh.mshcfg);
2169         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2170                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2171         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2172                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2173         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2174                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2175         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2176                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2177         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2178                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2179         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2180                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2181         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2182                 conf->element_ttl = nconf->element_ttl;
2183         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2184                 if (ifmsh->user_mpm)
2185                         return -EBUSY;
2186                 conf->auto_open_plinks = nconf->auto_open_plinks;
2187         }
2188         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2189                 conf->dot11MeshNbrOffsetMaxNeighbor =
2190                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2191         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2192                 conf->dot11MeshHWMPmaxPREQretries =
2193                         nconf->dot11MeshHWMPmaxPREQretries;
2194         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2195                 conf->path_refresh_time = nconf->path_refresh_time;
2196         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2197                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2198         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2199                 conf->dot11MeshHWMPactivePathTimeout =
2200                         nconf->dot11MeshHWMPactivePathTimeout;
2201         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2202                 conf->dot11MeshHWMPpreqMinInterval =
2203                         nconf->dot11MeshHWMPpreqMinInterval;
2204         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2205                 conf->dot11MeshHWMPperrMinInterval =
2206                         nconf->dot11MeshHWMPperrMinInterval;
2207         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2208                            mask))
2209                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2210                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2211         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2212                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2213                 ieee80211_mesh_root_setup(ifmsh);
2214         }
2215         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2216                 /* our current gate announcement implementation rides on root
2217                  * announcements, so require this ifmsh to also be a root node
2218                  * */
2219                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2220                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2221                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2222                         ieee80211_mesh_root_setup(ifmsh);
2223                 }
2224                 conf->dot11MeshGateAnnouncementProtocol =
2225                         nconf->dot11MeshGateAnnouncementProtocol;
2226         }
2227         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2228                 conf->dot11MeshHWMPRannInterval =
2229                         nconf->dot11MeshHWMPRannInterval;
2230         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2231                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2232         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2233                 /* our RSSI threshold implementation is supported only for
2234                  * devices that report signal in dBm.
2235                  */
2236                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2237                         return -ENOTSUPP;
2238                 conf->rssi_threshold = nconf->rssi_threshold;
2239         }
2240         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2241                 conf->ht_opmode = nconf->ht_opmode;
2242                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2243                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2244         }
2245         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2246                 conf->dot11MeshHWMPactivePathToRootTimeout =
2247                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2248         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2249                 conf->dot11MeshHWMProotInterval =
2250                         nconf->dot11MeshHWMProotInterval;
2251         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2252                 conf->dot11MeshHWMPconfirmationInterval =
2253                         nconf->dot11MeshHWMPconfirmationInterval;
2254         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2255                 conf->power_mode = nconf->power_mode;
2256                 ieee80211_mps_local_status_update(sdata);
2257         }
2258         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2259                 conf->dot11MeshAwakeWindowDuration =
2260                         nconf->dot11MeshAwakeWindowDuration;
2261         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2262                 conf->plink_timeout = nconf->plink_timeout;
2263         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2264                 conf->dot11MeshConnectedToMeshGate =
2265                         nconf->dot11MeshConnectedToMeshGate;
2266         if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2267                 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2268         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2269                 conf->dot11MeshConnectedToAuthServer =
2270                         nconf->dot11MeshConnectedToAuthServer;
2271         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2272         return 0;
2273 }
2274
2275 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2276                                const struct mesh_config *conf,
2277                                const struct mesh_setup *setup)
2278 {
2279         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2280         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2281         int err;
2282
2283         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2284         err = copy_mesh_setup(ifmsh, setup);
2285         if (err)
2286                 return err;
2287
2288         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2289
2290         /* can mesh use other SMPS modes? */
2291         sdata->smps_mode = IEEE80211_SMPS_OFF;
2292         sdata->needed_rx_chains = sdata->local->rx_chains;
2293
2294         mutex_lock(&sdata->local->mtx);
2295         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2296                                         IEEE80211_CHANCTX_SHARED);
2297         mutex_unlock(&sdata->local->mtx);
2298         if (err)
2299                 return err;
2300
2301         return ieee80211_start_mesh(sdata);
2302 }
2303
2304 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2305 {
2306         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2307
2308         ieee80211_stop_mesh(sdata);
2309         mutex_lock(&sdata->local->mtx);
2310         ieee80211_vif_release_channel(sdata);
2311         kfree(sdata->u.mesh.ie);
2312         mutex_unlock(&sdata->local->mtx);
2313
2314         return 0;
2315 }
2316 #endif
2317
2318 static int ieee80211_change_bss(struct wiphy *wiphy,
2319                                 struct net_device *dev,
2320                                 struct bss_parameters *params)
2321 {
2322         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2323         struct ieee80211_supported_band *sband;
2324         u32 changed = 0;
2325
2326         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2327                 return -ENOENT;
2328
2329         sband = ieee80211_get_sband(sdata);
2330         if (!sband)
2331                 return -EINVAL;
2332
2333         if (params->use_cts_prot >= 0) {
2334                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2335                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2336         }
2337         if (params->use_short_preamble >= 0) {
2338                 sdata->vif.bss_conf.use_short_preamble =
2339                         params->use_short_preamble;
2340                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2341         }
2342
2343         if (!sdata->vif.bss_conf.use_short_slot &&
2344             (sband->band == NL80211_BAND_5GHZ ||
2345              sband->band == NL80211_BAND_6GHZ)) {
2346                 sdata->vif.bss_conf.use_short_slot = true;
2347                 changed |= BSS_CHANGED_ERP_SLOT;
2348         }
2349
2350         if (params->use_short_slot_time >= 0) {
2351                 sdata->vif.bss_conf.use_short_slot =
2352                         params->use_short_slot_time;
2353                 changed |= BSS_CHANGED_ERP_SLOT;
2354         }
2355
2356         if (params->basic_rates) {
2357                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2358                                          wiphy->bands[sband->band],
2359                                          params->basic_rates,
2360                                          params->basic_rates_len,
2361                                          &sdata->vif.bss_conf.basic_rates);
2362                 changed |= BSS_CHANGED_BASIC_RATES;
2363                 ieee80211_check_rate_mask(sdata);
2364         }
2365
2366         if (params->ap_isolate >= 0) {
2367                 if (params->ap_isolate)
2368                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2369                 else
2370                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2371                 ieee80211_check_fast_rx_iface(sdata);
2372         }
2373
2374         if (params->ht_opmode >= 0) {
2375                 sdata->vif.bss_conf.ht_operation_mode =
2376                         (u16) params->ht_opmode;
2377                 changed |= BSS_CHANGED_HT;
2378         }
2379
2380         if (params->p2p_ctwindow >= 0) {
2381                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2382                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2383                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2384                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2385                 changed |= BSS_CHANGED_P2P_PS;
2386         }
2387
2388         if (params->p2p_opp_ps > 0) {
2389                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2390                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2391                 changed |= BSS_CHANGED_P2P_PS;
2392         } else if (params->p2p_opp_ps == 0) {
2393                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2394                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2395                 changed |= BSS_CHANGED_P2P_PS;
2396         }
2397
2398         ieee80211_bss_info_change_notify(sdata, changed);
2399
2400         return 0;
2401 }
2402
2403 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2404                                     struct net_device *dev,
2405                                     struct ieee80211_txq_params *params)
2406 {
2407         struct ieee80211_local *local = wiphy_priv(wiphy);
2408         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2409         struct ieee80211_tx_queue_params p;
2410
2411         if (!local->ops->conf_tx)
2412                 return -EOPNOTSUPP;
2413
2414         if (local->hw.queues < IEEE80211_NUM_ACS)
2415                 return -EOPNOTSUPP;
2416
2417         memset(&p, 0, sizeof(p));
2418         p.aifs = params->aifs;
2419         p.cw_max = params->cwmax;
2420         p.cw_min = params->cwmin;
2421         p.txop = params->txop;
2422
2423         /*
2424          * Setting tx queue params disables u-apsd because it's only
2425          * called in master mode.
2426          */
2427         p.uapsd = false;
2428
2429         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2430
2431         sdata->tx_conf[params->ac] = p;
2432         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2433                 wiphy_debug(local->hw.wiphy,
2434                             "failed to set TX queue parameters for AC %d\n",
2435                             params->ac);
2436                 return -EINVAL;
2437         }
2438
2439         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2440
2441         return 0;
2442 }
2443
2444 #ifdef CONFIG_PM
2445 static int ieee80211_suspend(struct wiphy *wiphy,
2446                              struct cfg80211_wowlan *wowlan)
2447 {
2448         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2449 }
2450
2451 static int ieee80211_resume(struct wiphy *wiphy)
2452 {
2453         return __ieee80211_resume(wiphy_priv(wiphy));
2454 }
2455 #else
2456 #define ieee80211_suspend NULL
2457 #define ieee80211_resume NULL
2458 #endif
2459
2460 static int ieee80211_scan(struct wiphy *wiphy,
2461                           struct cfg80211_scan_request *req)
2462 {
2463         struct ieee80211_sub_if_data *sdata;
2464
2465         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2466
2467         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2468         case NL80211_IFTYPE_STATION:
2469         case NL80211_IFTYPE_ADHOC:
2470         case NL80211_IFTYPE_MESH_POINT:
2471         case NL80211_IFTYPE_P2P_CLIENT:
2472         case NL80211_IFTYPE_P2P_DEVICE:
2473                 break;
2474         case NL80211_IFTYPE_P2P_GO:
2475                 if (sdata->local->ops->hw_scan)
2476                         break;
2477                 /*
2478                  * FIXME: implement NoA while scanning in software,
2479                  * for now fall through to allow scanning only when
2480                  * beaconing hasn't been configured yet
2481                  */
2482                 fallthrough;
2483         case NL80211_IFTYPE_AP:
2484                 /*
2485                  * If the scan has been forced (and the driver supports
2486                  * forcing), don't care about being beaconing already.
2487                  * This will create problems to the attached stations (e.g. all
2488                  * the  frames sent while scanning on other channel will be
2489                  * lost)
2490                  */
2491                 if (sdata->u.ap.beacon &&
2492                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2493                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2494                         return -EOPNOTSUPP;
2495                 break;
2496         case NL80211_IFTYPE_NAN:
2497         default:
2498                 return -EOPNOTSUPP;
2499         }
2500
2501         return ieee80211_request_scan(sdata, req);
2502 }
2503
2504 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2505 {
2506         ieee80211_scan_cancel(wiphy_priv(wiphy));
2507 }
2508
2509 static int
2510 ieee80211_sched_scan_start(struct wiphy *wiphy,
2511                            struct net_device *dev,
2512                            struct cfg80211_sched_scan_request *req)
2513 {
2514         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2515
2516         if (!sdata->local->ops->sched_scan_start)
2517                 return -EOPNOTSUPP;
2518
2519         return ieee80211_request_sched_scan_start(sdata, req);
2520 }
2521
2522 static int
2523 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2524                           u64 reqid)
2525 {
2526         struct ieee80211_local *local = wiphy_priv(wiphy);
2527
2528         if (!local->ops->sched_scan_stop)
2529                 return -EOPNOTSUPP;
2530
2531         return ieee80211_request_sched_scan_stop(local);
2532 }
2533
2534 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2535                           struct cfg80211_auth_request *req)
2536 {
2537         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2538 }
2539
2540 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2541                            struct cfg80211_assoc_request *req)
2542 {
2543         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2544 }
2545
2546 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2547                             struct cfg80211_deauth_request *req)
2548 {
2549         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2550 }
2551
2552 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2553                               struct cfg80211_disassoc_request *req)
2554 {
2555         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2556 }
2557
2558 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2559                                struct cfg80211_ibss_params *params)
2560 {
2561         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2562 }
2563
2564 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2565 {
2566         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2567 }
2568
2569 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2570                               struct ocb_setup *setup)
2571 {
2572         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2573 }
2574
2575 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2576 {
2577         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2578 }
2579
2580 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2581                                     int rate[NUM_NL80211_BANDS])
2582 {
2583         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2584
2585         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2586                sizeof(int) * NUM_NL80211_BANDS);
2587
2588         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2589
2590         return 0;
2591 }
2592
2593 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2594 {
2595         struct ieee80211_local *local = wiphy_priv(wiphy);
2596         int err;
2597
2598         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2599                 ieee80211_check_fast_xmit_all(local);
2600
2601                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2602
2603                 if (err) {
2604                         ieee80211_check_fast_xmit_all(local);
2605                         return err;
2606                 }
2607         }
2608
2609         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2610             (changed & WIPHY_PARAM_DYN_ACK)) {
2611                 s16 coverage_class;
2612
2613                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2614                                         wiphy->coverage_class : -1;
2615                 err = drv_set_coverage_class(local, coverage_class);
2616
2617                 if (err)
2618                         return err;
2619         }
2620
2621         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2622                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2623
2624                 if (err)
2625                         return err;
2626         }
2627
2628         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2629                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2630                         return -EINVAL;
2631                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2632         }
2633         if (changed & WIPHY_PARAM_RETRY_LONG) {
2634                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2635                         return -EINVAL;
2636                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2637         }
2638         if (changed &
2639             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2640                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2641
2642         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2643                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2644                        WIPHY_PARAM_TXQ_QUANTUM))
2645                 ieee80211_txq_set_params(local);
2646
2647         return 0;
2648 }
2649
2650 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2651                                   struct wireless_dev *wdev,
2652                                   enum nl80211_tx_power_setting type, int mbm)
2653 {
2654         struct ieee80211_local *local = wiphy_priv(wiphy);
2655         struct ieee80211_sub_if_data *sdata;
2656         enum nl80211_tx_power_setting txp_type = type;
2657         bool update_txp_type = false;
2658         bool has_monitor = false;
2659
2660         if (wdev) {
2661                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2662
2663                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2664                         sdata = rtnl_dereference(local->monitor_sdata);
2665                         if (!sdata)
2666                                 return -EOPNOTSUPP;
2667                 }
2668
2669                 switch (type) {
2670                 case NL80211_TX_POWER_AUTOMATIC:
2671                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2672                         txp_type = NL80211_TX_POWER_LIMITED;
2673                         break;
2674                 case NL80211_TX_POWER_LIMITED:
2675                 case NL80211_TX_POWER_FIXED:
2676                         if (mbm < 0 || (mbm % 100))
2677                                 return -EOPNOTSUPP;
2678                         sdata->user_power_level = MBM_TO_DBM(mbm);
2679                         break;
2680                 }
2681
2682                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2683                         update_txp_type = true;
2684                         sdata->vif.bss_conf.txpower_type = txp_type;
2685                 }
2686
2687                 ieee80211_recalc_txpower(sdata, update_txp_type);
2688
2689                 return 0;
2690         }
2691
2692         switch (type) {
2693         case NL80211_TX_POWER_AUTOMATIC:
2694                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2695                 txp_type = NL80211_TX_POWER_LIMITED;
2696                 break;
2697         case NL80211_TX_POWER_LIMITED:
2698         case NL80211_TX_POWER_FIXED:
2699                 if (mbm < 0 || (mbm % 100))
2700                         return -EOPNOTSUPP;
2701                 local->user_power_level = MBM_TO_DBM(mbm);
2702                 break;
2703         }
2704
2705         mutex_lock(&local->iflist_mtx);
2706         list_for_each_entry(sdata, &local->interfaces, list) {
2707                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2708                         has_monitor = true;
2709                         continue;
2710                 }
2711                 sdata->user_power_level = local->user_power_level;
2712                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2713                         update_txp_type = true;
2714                 sdata->vif.bss_conf.txpower_type = txp_type;
2715         }
2716         list_for_each_entry(sdata, &local->interfaces, list) {
2717                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2718                         continue;
2719                 ieee80211_recalc_txpower(sdata, update_txp_type);
2720         }
2721         mutex_unlock(&local->iflist_mtx);
2722
2723         if (has_monitor) {
2724                 sdata = rtnl_dereference(local->monitor_sdata);
2725                 if (sdata) {
2726                         sdata->user_power_level = local->user_power_level;
2727                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2728                                 update_txp_type = true;
2729                         sdata->vif.bss_conf.txpower_type = txp_type;
2730
2731                         ieee80211_recalc_txpower(sdata, update_txp_type);
2732                 }
2733         }
2734
2735         return 0;
2736 }
2737
2738 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2739                                   struct wireless_dev *wdev,
2740                                   int *dbm)
2741 {
2742         struct ieee80211_local *local = wiphy_priv(wiphy);
2743         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2744
2745         if (local->ops->get_txpower)
2746                 return drv_get_txpower(local, sdata, dbm);
2747
2748         if (!local->use_chanctx)
2749                 *dbm = local->hw.conf.power_level;
2750         else
2751                 *dbm = sdata->vif.bss_conf.txpower;
2752
2753         return 0;
2754 }
2755
2756 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2757 {
2758         struct ieee80211_local *local = wiphy_priv(wiphy);
2759
2760         drv_rfkill_poll(local);
2761 }
2762
2763 #ifdef CONFIG_NL80211_TESTMODE
2764 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2765                                   struct wireless_dev *wdev,
2766                                   void *data, int len)
2767 {
2768         struct ieee80211_local *local = wiphy_priv(wiphy);
2769         struct ieee80211_vif *vif = NULL;
2770
2771         if (!local->ops->testmode_cmd)
2772                 return -EOPNOTSUPP;
2773
2774         if (wdev) {
2775                 struct ieee80211_sub_if_data *sdata;
2776
2777                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2778                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2779                         vif = &sdata->vif;
2780         }
2781
2782         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2783 }
2784
2785 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2786                                    struct sk_buff *skb,
2787                                    struct netlink_callback *cb,
2788                                    void *data, int len)
2789 {
2790         struct ieee80211_local *local = wiphy_priv(wiphy);
2791
2792         if (!local->ops->testmode_dump)
2793                 return -EOPNOTSUPP;
2794
2795         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2796 }
2797 #endif
2798
2799 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2800                                  enum ieee80211_smps_mode smps_mode)
2801 {
2802         const u8 *ap;
2803         enum ieee80211_smps_mode old_req;
2804         int err;
2805         struct sta_info *sta;
2806         bool tdls_peer_found = false;
2807
2808         lockdep_assert_held(&sdata->wdev.mtx);
2809
2810         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2811                 return -EINVAL;
2812
2813         old_req = sdata->u.mgd.req_smps;
2814         sdata->u.mgd.req_smps = smps_mode;
2815
2816         if (old_req == smps_mode &&
2817             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2818                 return 0;
2819
2820         /*
2821          * If not associated, or current association is not an HT
2822          * association, there's no need to do anything, just store
2823          * the new value until we associate.
2824          */
2825         if (!sdata->u.mgd.associated ||
2826             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2827                 return 0;
2828
2829         ap = sdata->u.mgd.associated->bssid;
2830
2831         rcu_read_lock();
2832         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2833                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2834                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2835                         continue;
2836
2837                 tdls_peer_found = true;
2838                 break;
2839         }
2840         rcu_read_unlock();
2841
2842         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2843                 if (tdls_peer_found || !sdata->u.mgd.powersave)
2844                         smps_mode = IEEE80211_SMPS_OFF;
2845                 else
2846                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2847         }
2848
2849         /* send SM PS frame to AP */
2850         err = ieee80211_send_smps_action(sdata, smps_mode,
2851                                          ap, ap);
2852         if (err)
2853                 sdata->u.mgd.req_smps = old_req;
2854         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2855                 ieee80211_teardown_tdls_peers(sdata);
2856
2857         return err;
2858 }
2859
2860 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2861                                     bool enabled, int timeout)
2862 {
2863         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2864         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2865
2866         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2867                 return -EOPNOTSUPP;
2868
2869         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2870                 return -EOPNOTSUPP;
2871
2872         if (enabled == sdata->u.mgd.powersave &&
2873             timeout == local->dynamic_ps_forced_timeout)
2874                 return 0;
2875
2876         sdata->u.mgd.powersave = enabled;
2877         local->dynamic_ps_forced_timeout = timeout;
2878
2879         /* no change, but if automatic follow powersave */
2880         sdata_lock(sdata);
2881         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2882         sdata_unlock(sdata);
2883
2884         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2885                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2886
2887         ieee80211_recalc_ps(local);
2888         ieee80211_recalc_ps_vif(sdata);
2889         ieee80211_check_fast_rx_iface(sdata);
2890
2891         return 0;
2892 }
2893
2894 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2895                                          struct net_device *dev,
2896                                          s32 rssi_thold, u32 rssi_hyst)
2897 {
2898         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2899         struct ieee80211_vif *vif = &sdata->vif;
2900         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2901
2902         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2903             rssi_hyst == bss_conf->cqm_rssi_hyst)
2904                 return 0;
2905
2906         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2907             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2908                 return -EOPNOTSUPP;
2909
2910         bss_conf->cqm_rssi_thold = rssi_thold;
2911         bss_conf->cqm_rssi_hyst = rssi_hyst;
2912         bss_conf->cqm_rssi_low = 0;
2913         bss_conf->cqm_rssi_high = 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_cqm_rssi_range_config(struct wiphy *wiphy,
2925                                                struct net_device *dev,
2926                                                s32 rssi_low, s32 rssi_high)
2927 {
2928         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2929         struct ieee80211_vif *vif = &sdata->vif;
2930         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2931
2932         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2933                 return -EOPNOTSUPP;
2934
2935         bss_conf->cqm_rssi_low = rssi_low;
2936         bss_conf->cqm_rssi_high = rssi_high;
2937         bss_conf->cqm_rssi_thold = 0;
2938         bss_conf->cqm_rssi_hyst = 0;
2939         sdata->u.mgd.last_cqm_event_signal = 0;
2940
2941         /* tell the driver upon association, unless already associated */
2942         if (sdata->u.mgd.associated &&
2943             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2944                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2945
2946         return 0;
2947 }
2948
2949 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2950                                       struct net_device *dev,
2951                                       const u8 *addr,
2952                                       const struct cfg80211_bitrate_mask *mask)
2953 {
2954         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2955         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2956         int i, ret;
2957
2958         if (!ieee80211_sdata_running(sdata))
2959                 return -ENETDOWN;
2960
2961         /*
2962          * If active validate the setting and reject it if it doesn't leave
2963          * at least one basic rate usable, since we really have to be able
2964          * to send something, and if we're an AP we have to be able to do
2965          * so at a basic rate so that all clients can receive it.
2966          */
2967         if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2968             sdata->vif.bss_conf.chandef.chan) {
2969                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2970                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2971
2972                 if (!(mask->control[band].legacy & basic_rates))
2973                         return -EINVAL;
2974         }
2975
2976         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2977                 ret = drv_set_bitrate_mask(local, sdata, mask);
2978                 if (ret)
2979                         return ret;
2980         }
2981
2982         for (i = 0; i < NUM_NL80211_BANDS; i++) {
2983                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2984                 int j;
2985
2986                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2987                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2988                        sizeof(mask->control[i].ht_mcs));
2989                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2990                        mask->control[i].vht_mcs,
2991                        sizeof(mask->control[i].vht_mcs));
2992
2993                 sdata->rc_has_mcs_mask[i] = false;
2994                 sdata->rc_has_vht_mcs_mask[i] = false;
2995                 if (!sband)
2996                         continue;
2997
2998                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2999                         if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3000                                 sdata->rc_has_mcs_mask[i] = true;
3001                                 break;
3002                         }
3003                 }
3004
3005                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3006                         if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3007                                 sdata->rc_has_vht_mcs_mask[i] = true;
3008                                 break;
3009                         }
3010                 }
3011         }
3012
3013         return 0;
3014 }
3015
3016 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3017                                            struct net_device *dev,
3018                                            struct cfg80211_chan_def *chandef,
3019                                            u32 cac_time_ms)
3020 {
3021         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3022         struct ieee80211_local *local = sdata->local;
3023         int err;
3024
3025         mutex_lock(&local->mtx);
3026         if (!list_empty(&local->roc_list) || local->scanning) {
3027                 err = -EBUSY;
3028                 goto out_unlock;
3029         }
3030
3031         /* whatever, but channel contexts should not complain about that one */
3032         sdata->smps_mode = IEEE80211_SMPS_OFF;
3033         sdata->needed_rx_chains = local->rx_chains;
3034
3035         err = ieee80211_vif_use_channel(sdata, chandef,
3036                                         IEEE80211_CHANCTX_SHARED);
3037         if (err)
3038                 goto out_unlock;
3039
3040         ieee80211_queue_delayed_work(&sdata->local->hw,
3041                                      &sdata->dfs_cac_timer_work,
3042                                      msecs_to_jiffies(cac_time_ms));
3043
3044  out_unlock:
3045         mutex_unlock(&local->mtx);
3046         return err;
3047 }
3048
3049 static void ieee80211_end_cac(struct wiphy *wiphy,
3050                               struct net_device *dev)
3051 {
3052         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3053         struct ieee80211_local *local = sdata->local;
3054
3055         mutex_lock(&local->mtx);
3056         list_for_each_entry(sdata, &local->interfaces, list) {
3057                 /* it might be waiting for the local->mtx, but then
3058                  * by the time it gets it, sdata->wdev.cac_started
3059                  * will no longer be true
3060                  */
3061                 cancel_delayed_work(&sdata->dfs_cac_timer_work);
3062
3063                 if (sdata->wdev.cac_started) {
3064                         ieee80211_vif_release_channel(sdata);
3065                         sdata->wdev.cac_started = false;
3066                 }
3067         }
3068         mutex_unlock(&local->mtx);
3069 }
3070
3071 static struct cfg80211_beacon_data *
3072 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3073 {
3074         struct cfg80211_beacon_data *new_beacon;
3075         u8 *pos;
3076         int len;
3077
3078         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3079               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3080               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3081
3082         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3083         if (!new_beacon)
3084                 return NULL;
3085
3086         pos = (u8 *)(new_beacon + 1);
3087         if (beacon->head_len) {
3088                 new_beacon->head_len = beacon->head_len;
3089                 new_beacon->head = pos;
3090                 memcpy(pos, beacon->head, beacon->head_len);
3091                 pos += beacon->head_len;
3092         }
3093         if (beacon->tail_len) {
3094                 new_beacon->tail_len = beacon->tail_len;
3095                 new_beacon->tail = pos;
3096                 memcpy(pos, beacon->tail, beacon->tail_len);
3097                 pos += beacon->tail_len;
3098         }
3099         if (beacon->beacon_ies_len) {
3100                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3101                 new_beacon->beacon_ies = pos;
3102                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3103                 pos += beacon->beacon_ies_len;
3104         }
3105         if (beacon->proberesp_ies_len) {
3106                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3107                 new_beacon->proberesp_ies = pos;
3108                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3109                 pos += beacon->proberesp_ies_len;
3110         }
3111         if (beacon->assocresp_ies_len) {
3112                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3113                 new_beacon->assocresp_ies = pos;
3114                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3115                 pos += beacon->assocresp_ies_len;
3116         }
3117         if (beacon->probe_resp_len) {
3118                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3119                 new_beacon->probe_resp = pos;
3120                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3121                 pos += beacon->probe_resp_len;
3122         }
3123
3124         /* might copy -1, meaning no changes requested */
3125         new_beacon->ftm_responder = beacon->ftm_responder;
3126         if (beacon->lci) {
3127                 new_beacon->lci_len = beacon->lci_len;
3128                 new_beacon->lci = pos;
3129                 memcpy(pos, beacon->lci, beacon->lci_len);
3130                 pos += beacon->lci_len;
3131         }
3132         if (beacon->civicloc) {
3133                 new_beacon->civicloc_len = beacon->civicloc_len;
3134                 new_beacon->civicloc = pos;
3135                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3136                 pos += beacon->civicloc_len;
3137         }
3138
3139         return new_beacon;
3140 }
3141
3142 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3143 {
3144         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3145
3146         ieee80211_queue_work(&sdata->local->hw,
3147                              &sdata->csa_finalize_work);
3148 }
3149 EXPORT_SYMBOL(ieee80211_csa_finish);
3150
3151 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3152                                           u32 *changed)
3153 {
3154         int err;
3155
3156         switch (sdata->vif.type) {
3157         case NL80211_IFTYPE_AP:
3158                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3159                                               NULL);
3160                 kfree(sdata->u.ap.next_beacon);
3161                 sdata->u.ap.next_beacon = NULL;
3162
3163                 if (err < 0)
3164                         return err;
3165                 *changed |= err;
3166                 break;
3167         case NL80211_IFTYPE_ADHOC:
3168                 err = ieee80211_ibss_finish_csa(sdata);
3169                 if (err < 0)
3170                         return err;
3171                 *changed |= err;
3172                 break;
3173 #ifdef CONFIG_MAC80211_MESH
3174         case NL80211_IFTYPE_MESH_POINT:
3175                 err = ieee80211_mesh_finish_csa(sdata);
3176                 if (err < 0)
3177                         return err;
3178                 *changed |= err;
3179                 break;
3180 #endif
3181         default:
3182                 WARN_ON(1);
3183                 return -EINVAL;
3184         }
3185
3186         return 0;
3187 }
3188
3189 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3190 {
3191         struct ieee80211_local *local = sdata->local;
3192         u32 changed = 0;
3193         int err;
3194
3195         sdata_assert_lock(sdata);
3196         lockdep_assert_held(&local->mtx);
3197         lockdep_assert_held(&local->chanctx_mtx);
3198
3199         /*
3200          * using reservation isn't immediate as it may be deferred until later
3201          * with multi-vif. once reservation is complete it will re-schedule the
3202          * work with no reserved_chanctx so verify chandef to check if it
3203          * completed successfully
3204          */
3205
3206         if (sdata->reserved_chanctx) {
3207                 /*
3208                  * with multi-vif csa driver may call ieee80211_csa_finish()
3209                  * many times while waiting for other interfaces to use their
3210                  * reservations
3211                  */
3212                 if (sdata->reserved_ready)
3213                         return 0;
3214
3215                 return ieee80211_vif_use_reserved_context(sdata);
3216         }
3217
3218         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3219                                         &sdata->csa_chandef))
3220                 return -EINVAL;
3221
3222         sdata->vif.csa_active = false;
3223
3224         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3225         if (err)
3226                 return err;
3227
3228         ieee80211_bss_info_change_notify(sdata, changed);
3229
3230         if (sdata->csa_block_tx) {
3231                 ieee80211_wake_vif_queues(local, sdata,
3232                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3233                 sdata->csa_block_tx = false;
3234         }
3235
3236         err = drv_post_channel_switch(sdata);
3237         if (err)
3238                 return err;
3239
3240         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3241
3242         return 0;
3243 }
3244
3245 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3246 {
3247         if (__ieee80211_csa_finalize(sdata)) {
3248                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3249                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3250                                     GFP_KERNEL);
3251         }
3252 }
3253
3254 void ieee80211_csa_finalize_work(struct work_struct *work)
3255 {
3256         struct ieee80211_sub_if_data *sdata =
3257                 container_of(work, struct ieee80211_sub_if_data,
3258                              csa_finalize_work);
3259         struct ieee80211_local *local = sdata->local;
3260
3261         sdata_lock(sdata);
3262         mutex_lock(&local->mtx);
3263         mutex_lock(&local->chanctx_mtx);
3264
3265         /* AP might have been stopped while waiting for the lock. */
3266         if (!sdata->vif.csa_active)
3267                 goto unlock;
3268
3269         if (!ieee80211_sdata_running(sdata))
3270                 goto unlock;
3271
3272         ieee80211_csa_finalize(sdata);
3273
3274 unlock:
3275         mutex_unlock(&local->chanctx_mtx);
3276         mutex_unlock(&local->mtx);
3277         sdata_unlock(sdata);
3278 }
3279
3280 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3281                                     struct cfg80211_csa_settings *params,
3282                                     u32 *changed)
3283 {
3284         struct ieee80211_csa_settings csa = {};
3285         int err;
3286
3287         switch (sdata->vif.type) {
3288         case NL80211_IFTYPE_AP:
3289                 sdata->u.ap.next_beacon =
3290                         cfg80211_beacon_dup(&params->beacon_after);
3291                 if (!sdata->u.ap.next_beacon)
3292                         return -ENOMEM;
3293
3294                 /*
3295                  * With a count of 0, we don't have to wait for any
3296                  * TBTT before switching, so complete the CSA
3297                  * immediately.  In theory, with a count == 1 we
3298                  * should delay the switch until just before the next
3299                  * TBTT, but that would complicate things so we switch
3300                  * immediately too.  If we would delay the switch
3301                  * until the next TBTT, we would have to set the probe
3302                  * response here.
3303                  *
3304                  * TODO: A channel switch with count <= 1 without
3305                  * sending a CSA action frame is kind of useless,
3306                  * because the clients won't know we're changing
3307                  * channels.  The action frame must be implemented
3308                  * either here or in the userspace.
3309                  */
3310                 if (params->count <= 1)
3311                         break;
3312
3313                 if ((params->n_counter_offsets_beacon >
3314                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3315                     (params->n_counter_offsets_presp >
3316                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
3317                         return -EINVAL;
3318
3319                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3320                 csa.counter_offsets_presp = params->counter_offsets_presp;
3321                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3322                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3323                 csa.count = params->count;
3324
3325                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3326                 if (err < 0) {
3327                         kfree(sdata->u.ap.next_beacon);
3328                         return err;
3329                 }
3330                 *changed |= err;
3331
3332                 break;
3333         case NL80211_IFTYPE_ADHOC:
3334                 if (!sdata->vif.bss_conf.ibss_joined)
3335                         return -EINVAL;
3336
3337                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3338                         return -EINVAL;
3339
3340                 switch (params->chandef.width) {
3341                 case NL80211_CHAN_WIDTH_40:
3342                         if (cfg80211_get_chandef_type(&params->chandef) !=
3343                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3344                                 return -EINVAL;
3345                         break;
3346                 case NL80211_CHAN_WIDTH_5:
3347                 case NL80211_CHAN_WIDTH_10:
3348                 case NL80211_CHAN_WIDTH_20_NOHT:
3349                 case NL80211_CHAN_WIDTH_20:
3350                         break;
3351                 default:
3352                         return -EINVAL;
3353                 }
3354
3355                 /* changes into another band are not supported */
3356                 if (sdata->u.ibss.chandef.chan->band !=
3357                     params->chandef.chan->band)
3358                         return -EINVAL;
3359
3360                 /* see comments in the NL80211_IFTYPE_AP block */
3361                 if (params->count > 1) {
3362                         err = ieee80211_ibss_csa_beacon(sdata, params);
3363                         if (err < 0)
3364                                 return err;
3365                         *changed |= err;
3366                 }
3367
3368                 ieee80211_send_action_csa(sdata, params);
3369
3370                 break;
3371 #ifdef CONFIG_MAC80211_MESH
3372         case NL80211_IFTYPE_MESH_POINT: {
3373                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3374
3375                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3376                         return -EINVAL;
3377
3378                 /* changes into another band are not supported */
3379                 if (sdata->vif.bss_conf.chandef.chan->band !=
3380                     params->chandef.chan->band)
3381                         return -EINVAL;
3382
3383                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3384                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3385                         if (!ifmsh->pre_value)
3386                                 ifmsh->pre_value = 1;
3387                         else
3388                                 ifmsh->pre_value++;
3389                 }
3390
3391                 /* see comments in the NL80211_IFTYPE_AP block */
3392                 if (params->count > 1) {
3393                         err = ieee80211_mesh_csa_beacon(sdata, params);
3394                         if (err < 0) {
3395                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3396                                 return err;
3397                         }
3398                         *changed |= err;
3399                 }
3400
3401                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3402                         ieee80211_send_action_csa(sdata, params);
3403
3404                 break;
3405                 }
3406 #endif
3407         default:
3408                 return -EOPNOTSUPP;
3409         }
3410
3411         return 0;
3412 }
3413
3414 static int
3415 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3416                            struct cfg80211_csa_settings *params)
3417 {
3418         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3419         struct ieee80211_local *local = sdata->local;
3420         struct ieee80211_channel_switch ch_switch;
3421         struct ieee80211_chanctx_conf *conf;
3422         struct ieee80211_chanctx *chanctx;
3423         u32 changed = 0;
3424         int err;
3425
3426         sdata_assert_lock(sdata);
3427         lockdep_assert_held(&local->mtx);
3428
3429         if (!list_empty(&local->roc_list) || local->scanning)
3430                 return -EBUSY;
3431
3432         if (sdata->wdev.cac_started)
3433                 return -EBUSY;
3434
3435         if (cfg80211_chandef_identical(&params->chandef,
3436                                        &sdata->vif.bss_conf.chandef))
3437                 return -EINVAL;
3438
3439         /* don't allow another channel switch if one is already active. */
3440         if (sdata->vif.csa_active)
3441                 return -EBUSY;
3442
3443         mutex_lock(&local->chanctx_mtx);
3444         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3445                                          lockdep_is_held(&local->chanctx_mtx));
3446         if (!conf) {
3447                 err = -EBUSY;
3448                 goto out;
3449         }
3450
3451         if (params->chandef.chan->freq_offset) {
3452                 /* this may work, but is untested */
3453                 err = -EOPNOTSUPP;
3454                 goto out;
3455         }
3456
3457         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3458
3459         ch_switch.timestamp = 0;
3460         ch_switch.device_timestamp = 0;
3461         ch_switch.block_tx = params->block_tx;
3462         ch_switch.chandef = params->chandef;
3463         ch_switch.count = params->count;
3464
3465         err = drv_pre_channel_switch(sdata, &ch_switch);
3466         if (err)
3467                 goto out;
3468
3469         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3470                                             chanctx->mode,
3471                                             params->radar_required);
3472         if (err)
3473                 goto out;
3474
3475         /* if reservation is invalid then this will fail */
3476         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3477         if (err) {
3478                 ieee80211_vif_unreserve_chanctx(sdata);
3479                 goto out;
3480         }
3481
3482         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3483         if (err) {
3484                 ieee80211_vif_unreserve_chanctx(sdata);
3485                 goto out;
3486         }
3487
3488         sdata->csa_chandef = params->chandef;
3489         sdata->csa_block_tx = params->block_tx;
3490         sdata->vif.csa_active = true;
3491
3492         if (sdata->csa_block_tx)
3493                 ieee80211_stop_vif_queues(local, sdata,
3494                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3495
3496         cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3497                                           params->count, params->block_tx);
3498
3499         if (changed) {
3500                 ieee80211_bss_info_change_notify(sdata, changed);
3501                 drv_channel_switch_beacon(sdata, &params->chandef);
3502         } else {
3503                 /* if the beacon didn't change, we can finalize immediately */
3504                 ieee80211_csa_finalize(sdata);
3505         }
3506
3507 out:
3508         mutex_unlock(&local->chanctx_mtx);
3509         return err;
3510 }
3511
3512 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3513                              struct cfg80211_csa_settings *params)
3514 {
3515         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3516         struct ieee80211_local *local = sdata->local;
3517         int err;
3518
3519         mutex_lock(&local->mtx);
3520         err = __ieee80211_channel_switch(wiphy, dev, params);
3521         mutex_unlock(&local->mtx);
3522
3523         return err;
3524 }
3525
3526 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3527 {
3528         lockdep_assert_held(&local->mtx);
3529
3530         local->roc_cookie_counter++;
3531
3532         /* wow, you wrapped 64 bits ... more likely a bug */
3533         if (WARN_ON(local->roc_cookie_counter == 0))
3534                 local->roc_cookie_counter++;
3535
3536         return local->roc_cookie_counter;
3537 }
3538
3539 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3540                              u64 *cookie, gfp_t gfp)
3541 {
3542         unsigned long spin_flags;
3543         struct sk_buff *ack_skb;
3544         int id;
3545
3546         ack_skb = skb_copy(skb, gfp);
3547         if (!ack_skb)
3548                 return -ENOMEM;
3549
3550         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3551         id = idr_alloc(&local->ack_status_frames, ack_skb,
3552                        1, 0x2000, GFP_ATOMIC);
3553         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3554
3555         if (id < 0) {
3556                 kfree_skb(ack_skb);
3557                 return -ENOMEM;
3558         }
3559
3560         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3561
3562         *cookie = ieee80211_mgmt_tx_cookie(local);
3563         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3564
3565         return 0;
3566 }
3567
3568 static void
3569 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3570                                           struct wireless_dev *wdev,
3571                                           struct mgmt_frame_regs *upd)
3572 {
3573         struct ieee80211_local *local = wiphy_priv(wiphy);
3574         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3575         u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3576         u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3577         bool global_change, intf_change;
3578
3579         global_change =
3580                 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3581                 (local->rx_mcast_action_reg !=
3582                  !!(upd->global_mcast_stypes & action_mask));
3583         local->probe_req_reg = upd->global_stypes & preq_mask;
3584         local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3585
3586         intf_change = (sdata->vif.probe_req_reg !=
3587                        !!(upd->interface_stypes & preq_mask)) ||
3588                 (sdata->vif.rx_mcast_action_reg !=
3589                  !!(upd->interface_mcast_stypes & action_mask));
3590         sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3591         sdata->vif.rx_mcast_action_reg =
3592                 upd->interface_mcast_stypes & action_mask;
3593
3594         if (!local->open_count)
3595                 return;
3596
3597         if (intf_change && ieee80211_sdata_running(sdata))
3598                 drv_config_iface_filter(local, sdata,
3599                                         sdata->vif.probe_req_reg ?
3600                                                 FIF_PROBE_REQ : 0,
3601                                         FIF_PROBE_REQ);
3602
3603         if (global_change)
3604                 ieee80211_configure_filter(local);
3605 }
3606
3607 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3608 {
3609         struct ieee80211_local *local = wiphy_priv(wiphy);
3610
3611         if (local->started)
3612                 return -EOPNOTSUPP;
3613
3614         return drv_set_antenna(local, tx_ant, rx_ant);
3615 }
3616
3617 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3618 {
3619         struct ieee80211_local *local = wiphy_priv(wiphy);
3620
3621         return drv_get_antenna(local, tx_ant, rx_ant);
3622 }
3623
3624 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3625                                     struct net_device *dev,
3626                                     struct cfg80211_gtk_rekey_data *data)
3627 {
3628         struct ieee80211_local *local = wiphy_priv(wiphy);
3629         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3630
3631         if (!local->ops->set_rekey_data)
3632                 return -EOPNOTSUPP;
3633
3634         drv_set_rekey_data(local, sdata, data);
3635
3636         return 0;
3637 }
3638
3639 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3640                                   const u8 *peer, u64 *cookie)
3641 {
3642         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3643         struct ieee80211_local *local = sdata->local;
3644         struct ieee80211_qos_hdr *nullfunc;
3645         struct sk_buff *skb;
3646         int size = sizeof(*nullfunc);
3647         __le16 fc;
3648         bool qos;
3649         struct ieee80211_tx_info *info;
3650         struct sta_info *sta;
3651         struct ieee80211_chanctx_conf *chanctx_conf;
3652         enum nl80211_band band;
3653         int ret;
3654
3655         /* the lock is needed to assign the cookie later */
3656         mutex_lock(&local->mtx);
3657
3658         rcu_read_lock();
3659         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3660         if (WARN_ON(!chanctx_conf)) {
3661                 ret = -EINVAL;
3662                 goto unlock;
3663         }
3664         band = chanctx_conf->def.chan->band;
3665         sta = sta_info_get_bss(sdata, peer);
3666         if (sta) {
3667                 qos = sta->sta.wme;
3668         } else {
3669                 ret = -ENOLINK;
3670                 goto unlock;
3671         }
3672
3673         if (qos) {
3674                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3675                                  IEEE80211_STYPE_QOS_NULLFUNC |
3676                                  IEEE80211_FCTL_FROMDS);
3677         } else {
3678                 size -= 2;
3679                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3680                                  IEEE80211_STYPE_NULLFUNC |
3681                                  IEEE80211_FCTL_FROMDS);
3682         }
3683
3684         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3685         if (!skb) {
3686                 ret = -ENOMEM;
3687                 goto unlock;
3688         }
3689
3690         skb->dev = dev;
3691
3692         skb_reserve(skb, local->hw.extra_tx_headroom);
3693
3694         nullfunc = skb_put(skb, size);
3695         nullfunc->frame_control = fc;
3696         nullfunc->duration_id = 0;
3697         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3698         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3699         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3700         nullfunc->seq_ctrl = 0;
3701
3702         info = IEEE80211_SKB_CB(skb);
3703
3704         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3705                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3706         info->band = band;
3707
3708         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3709         skb->priority = 7;
3710         if (qos)
3711                 nullfunc->qos_ctrl = cpu_to_le16(7);
3712
3713         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3714         if (ret) {
3715                 kfree_skb(skb);
3716                 goto unlock;
3717         }
3718
3719         local_bh_disable();
3720         ieee80211_xmit(sdata, sta, skb);
3721         local_bh_enable();
3722
3723         ret = 0;
3724 unlock:
3725         rcu_read_unlock();
3726         mutex_unlock(&local->mtx);
3727
3728         return ret;
3729 }
3730
3731 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3732                                      struct wireless_dev *wdev,
3733                                      struct cfg80211_chan_def *chandef)
3734 {
3735         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3736         struct ieee80211_local *local = wiphy_priv(wiphy);
3737         struct ieee80211_chanctx_conf *chanctx_conf;
3738         int ret = -ENODATA;
3739
3740         rcu_read_lock();
3741         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3742         if (chanctx_conf) {
3743                 *chandef = sdata->vif.bss_conf.chandef;
3744                 ret = 0;
3745         } else if (local->open_count > 0 &&
3746                    local->open_count == local->monitors &&
3747                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3748                 if (local->use_chanctx)
3749                         *chandef = local->monitor_chandef;
3750                 else
3751                         *chandef = local->_oper_chandef;
3752                 ret = 0;
3753         }
3754         rcu_read_unlock();
3755
3756         return ret;
3757 }
3758
3759 #ifdef CONFIG_PM
3760 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3761 {
3762         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3763 }
3764 #endif
3765
3766 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3767                                  struct net_device *dev,
3768                                  struct cfg80211_qos_map *qos_map)
3769 {
3770         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3771         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3772
3773         if (qos_map) {
3774                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3775                 if (!new_qos_map)
3776                         return -ENOMEM;
3777                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3778         } else {
3779                 /* A NULL qos_map was passed to disable QoS mapping */
3780                 new_qos_map = NULL;
3781         }
3782
3783         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3784         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3785         if (old_qos_map)
3786                 kfree_rcu(old_qos_map, rcu_head);
3787
3788         return 0;
3789 }
3790
3791 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3792                                       struct net_device *dev,
3793                                       struct cfg80211_chan_def *chandef)
3794 {
3795         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3796         int ret;
3797         u32 changed = 0;
3798
3799         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3800         if (ret == 0)
3801                 ieee80211_bss_info_change_notify(sdata, changed);
3802
3803         return ret;
3804 }
3805
3806 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3807                                u8 tsid, const u8 *peer, u8 up,
3808                                u16 admitted_time)
3809 {
3810         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3811         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3812         int ac = ieee802_1d_to_ac[up];
3813
3814         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3815                 return -EOPNOTSUPP;
3816
3817         if (!(sdata->wmm_acm & BIT(up)))
3818                 return -EINVAL;
3819
3820         if (ifmgd->tx_tspec[ac].admitted_time)
3821                 return -EBUSY;
3822
3823         if (admitted_time) {
3824                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3825                 ifmgd->tx_tspec[ac].tsid = tsid;
3826                 ifmgd->tx_tspec[ac].up = up;
3827         }
3828
3829         return 0;
3830 }
3831
3832 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3833                                u8 tsid, const u8 *peer)
3834 {
3835         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3836         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3837         struct ieee80211_local *local = wiphy_priv(wiphy);
3838         int ac;
3839
3840         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3841                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3842
3843                 /* skip unused entries */
3844                 if (!tx_tspec->admitted_time)
3845                         continue;
3846
3847                 if (tx_tspec->tsid != tsid)
3848                         continue;
3849
3850                 /* due to this new packets will be reassigned to non-ACM ACs */
3851                 tx_tspec->up = -1;
3852
3853                 /* Make sure that all packets have been sent to avoid to
3854                  * restore the QoS params on packets that are still on the
3855                  * queues.
3856                  */
3857                 synchronize_net();
3858                 ieee80211_flush_queues(local, sdata, false);
3859
3860                 /* restore the normal QoS parameters
3861                  * (unconditionally to avoid races)
3862                  */
3863                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3864                 tx_tspec->downgraded = false;
3865                 ieee80211_sta_handle_tspec_ac_params(sdata);
3866
3867                 /* finally clear all the data */
3868                 memset(tx_tspec, 0, sizeof(*tx_tspec));
3869
3870                 return 0;
3871         }
3872
3873         return -ENOENT;
3874 }
3875
3876 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3877                                    u8 inst_id,
3878                                    enum nl80211_nan_func_term_reason reason,
3879                                    gfp_t gfp)
3880 {
3881         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3882         struct cfg80211_nan_func *func;
3883         u64 cookie;
3884
3885         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3886                 return;
3887
3888         spin_lock_bh(&sdata->u.nan.func_lock);
3889
3890         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3891         if (WARN_ON(!func)) {
3892                 spin_unlock_bh(&sdata->u.nan.func_lock);
3893                 return;
3894         }
3895
3896         cookie = func->cookie;
3897         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3898
3899         spin_unlock_bh(&sdata->u.nan.func_lock);
3900
3901         cfg80211_free_nan_func(func);
3902
3903         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3904                                      reason, cookie, gfp);
3905 }
3906 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3907
3908 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3909                               struct cfg80211_nan_match_params *match,
3910                               gfp_t gfp)
3911 {
3912         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3913         struct cfg80211_nan_func *func;
3914
3915         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3916                 return;
3917
3918         spin_lock_bh(&sdata->u.nan.func_lock);
3919
3920         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3921         if (WARN_ON(!func)) {
3922                 spin_unlock_bh(&sdata->u.nan.func_lock);
3923                 return;
3924         }
3925         match->cookie = func->cookie;
3926
3927         spin_unlock_bh(&sdata->u.nan.func_lock);
3928
3929         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3930 }
3931 EXPORT_SYMBOL(ieee80211_nan_func_match);
3932
3933 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3934                                               struct net_device *dev,
3935                                               const bool enabled)
3936 {
3937         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3938
3939         sdata->u.ap.multicast_to_unicast = enabled;
3940
3941         return 0;
3942 }
3943
3944 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3945                               struct txq_info *txqi)
3946 {
3947         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3948                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3949                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3950         }
3951
3952         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3953                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3954                 txqstats->backlog_packets = txqi->tin.backlog_packets;
3955         }
3956
3957         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3958                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3959                 txqstats->flows = txqi->tin.flows;
3960         }
3961
3962         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3963                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3964                 txqstats->drops = txqi->cstats.drop_count;
3965         }
3966
3967         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3968                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3969                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3970         }
3971
3972         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3973                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3974                 txqstats->overlimit = txqi->tin.overlimit;
3975         }
3976
3977         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3978                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3979                 txqstats->collisions = txqi->tin.collisions;
3980         }
3981
3982         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3983                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3984                 txqstats->tx_bytes = txqi->tin.tx_bytes;
3985         }
3986
3987         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3988                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3989                 txqstats->tx_packets = txqi->tin.tx_packets;
3990         }
3991 }
3992
3993 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3994                                    struct wireless_dev *wdev,
3995                                    struct cfg80211_txq_stats *txqstats)
3996 {
3997         struct ieee80211_local *local = wiphy_priv(wiphy);
3998         struct ieee80211_sub_if_data *sdata;
3999         int ret = 0;
4000
4001         if (!local->ops->wake_tx_queue)
4002                 return 1;
4003
4004         spin_lock_bh(&local->fq.lock);
4005         rcu_read_lock();
4006
4007         if (wdev) {
4008                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4009                 if (!sdata->vif.txq) {
4010                         ret = 1;
4011                         goto out;
4012                 }
4013                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4014         } else {
4015                 /* phy stats */
4016                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4017                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4018                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4019                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4020                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
4021                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4022                 txqstats->backlog_packets = local->fq.backlog;
4023                 txqstats->backlog_bytes = local->fq.memory_usage;
4024                 txqstats->overlimit = local->fq.overlimit;
4025                 txqstats->overmemory = local->fq.overmemory;
4026                 txqstats->collisions = local->fq.collisions;
4027                 txqstats->max_flows = local->fq.flows_cnt;
4028         }
4029
4030 out:
4031         rcu_read_unlock();
4032         spin_unlock_bh(&local->fq.lock);
4033
4034         return ret;
4035 }
4036
4037 static int
4038 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4039                                   struct net_device *dev,
4040                                   struct cfg80211_ftm_responder_stats *ftm_stats)
4041 {
4042         struct ieee80211_local *local = wiphy_priv(wiphy);
4043         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4044
4045         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4046 }
4047
4048 static int
4049 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4050                      struct cfg80211_pmsr_request *request)
4051 {
4052         struct ieee80211_local *local = wiphy_priv(wiphy);
4053         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4054
4055         return drv_start_pmsr(local, sdata, request);
4056 }
4057
4058 static void
4059 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4060                      struct cfg80211_pmsr_request *request)
4061 {
4062         struct ieee80211_local *local = wiphy_priv(wiphy);
4063         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4064
4065         return drv_abort_pmsr(local, sdata, request);
4066 }
4067
4068 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4069                                     struct net_device *dev,
4070                                     struct cfg80211_tid_config *tid_conf)
4071 {
4072         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4073         struct sta_info *sta;
4074         int ret;
4075
4076         if (!sdata->local->ops->set_tid_config)
4077                 return -EOPNOTSUPP;
4078
4079         if (!tid_conf->peer)
4080                 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4081
4082         mutex_lock(&sdata->local->sta_mtx);
4083         sta = sta_info_get_bss(sdata, tid_conf->peer);
4084         if (!sta) {
4085                 mutex_unlock(&sdata->local->sta_mtx);
4086                 return -ENOENT;
4087         }
4088
4089         ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4090         mutex_unlock(&sdata->local->sta_mtx);
4091
4092         return ret;
4093 }
4094
4095 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4096                                       struct net_device *dev,
4097                                       const u8 *peer, u8 tids)
4098 {
4099         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4100         struct sta_info *sta;
4101         int ret;
4102
4103         if (!sdata->local->ops->reset_tid_config)
4104                 return -EOPNOTSUPP;
4105
4106         if (!peer)
4107                 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4108
4109         mutex_lock(&sdata->local->sta_mtx);
4110         sta = sta_info_get_bss(sdata, peer);
4111         if (!sta) {
4112                 mutex_unlock(&sdata->local->sta_mtx);
4113                 return -ENOENT;
4114         }
4115
4116         ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4117         mutex_unlock(&sdata->local->sta_mtx);
4118
4119         return ret;
4120 }
4121
4122 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4123                                    struct cfg80211_sar_specs *sar)
4124 {
4125         struct ieee80211_local *local = wiphy_priv(wiphy);
4126
4127         if (!local->ops->set_sar_specs)
4128                 return -EOPNOTSUPP;
4129
4130         return local->ops->set_sar_specs(&local->hw, sar);
4131 }
4132
4133 const struct cfg80211_ops mac80211_config_ops = {
4134         .add_virtual_intf = ieee80211_add_iface,
4135         .del_virtual_intf = ieee80211_del_iface,
4136         .change_virtual_intf = ieee80211_change_iface,
4137         .start_p2p_device = ieee80211_start_p2p_device,
4138         .stop_p2p_device = ieee80211_stop_p2p_device,
4139         .add_key = ieee80211_add_key,
4140         .del_key = ieee80211_del_key,
4141         .get_key = ieee80211_get_key,
4142         .set_default_key = ieee80211_config_default_key,
4143         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4144         .set_default_beacon_key = ieee80211_config_default_beacon_key,
4145         .start_ap = ieee80211_start_ap,
4146         .change_beacon = ieee80211_change_beacon,
4147         .stop_ap = ieee80211_stop_ap,
4148         .add_station = ieee80211_add_station,
4149         .del_station = ieee80211_del_station,
4150         .change_station = ieee80211_change_station,
4151         .get_station = ieee80211_get_station,
4152         .dump_station = ieee80211_dump_station,
4153         .dump_survey = ieee80211_dump_survey,
4154 #ifdef CONFIG_MAC80211_MESH
4155         .add_mpath = ieee80211_add_mpath,
4156         .del_mpath = ieee80211_del_mpath,
4157         .change_mpath = ieee80211_change_mpath,
4158         .get_mpath = ieee80211_get_mpath,
4159         .dump_mpath = ieee80211_dump_mpath,
4160         .get_mpp = ieee80211_get_mpp,
4161         .dump_mpp = ieee80211_dump_mpp,
4162         .update_mesh_config = ieee80211_update_mesh_config,
4163         .get_mesh_config = ieee80211_get_mesh_config,
4164         .join_mesh = ieee80211_join_mesh,
4165         .leave_mesh = ieee80211_leave_mesh,
4166 #endif
4167         .join_ocb = ieee80211_join_ocb,
4168         .leave_ocb = ieee80211_leave_ocb,
4169         .change_bss = ieee80211_change_bss,
4170         .set_txq_params = ieee80211_set_txq_params,
4171         .set_monitor_channel = ieee80211_set_monitor_channel,
4172         .suspend = ieee80211_suspend,
4173         .resume = ieee80211_resume,
4174         .scan = ieee80211_scan,
4175         .abort_scan = ieee80211_abort_scan,
4176         .sched_scan_start = ieee80211_sched_scan_start,
4177         .sched_scan_stop = ieee80211_sched_scan_stop,
4178         .auth = ieee80211_auth,
4179         .assoc = ieee80211_assoc,
4180         .deauth = ieee80211_deauth,
4181         .disassoc = ieee80211_disassoc,
4182         .join_ibss = ieee80211_join_ibss,
4183         .leave_ibss = ieee80211_leave_ibss,
4184         .set_mcast_rate = ieee80211_set_mcast_rate,
4185         .set_wiphy_params = ieee80211_set_wiphy_params,
4186         .set_tx_power = ieee80211_set_tx_power,
4187         .get_tx_power = ieee80211_get_tx_power,
4188         .rfkill_poll = ieee80211_rfkill_poll,
4189         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4190         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4191         .set_power_mgmt = ieee80211_set_power_mgmt,
4192         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4193         .remain_on_channel = ieee80211_remain_on_channel,
4194         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4195         .mgmt_tx = ieee80211_mgmt_tx,
4196         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4197         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4198         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4199         .update_mgmt_frame_registrations =
4200                 ieee80211_update_mgmt_frame_registrations,
4201         .set_antenna = ieee80211_set_antenna,
4202         .get_antenna = ieee80211_get_antenna,
4203         .set_rekey_data = ieee80211_set_rekey_data,
4204         .tdls_oper = ieee80211_tdls_oper,
4205         .tdls_mgmt = ieee80211_tdls_mgmt,
4206         .tdls_channel_switch = ieee80211_tdls_channel_switch,
4207         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4208         .probe_client = ieee80211_probe_client,
4209         .set_noack_map = ieee80211_set_noack_map,
4210 #ifdef CONFIG_PM
4211         .set_wakeup = ieee80211_set_wakeup,
4212 #endif
4213         .get_channel = ieee80211_cfg_get_channel,
4214         .start_radar_detection = ieee80211_start_radar_detection,
4215         .end_cac = ieee80211_end_cac,
4216         .channel_switch = ieee80211_channel_switch,
4217         .set_qos_map = ieee80211_set_qos_map,
4218         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4219         .add_tx_ts = ieee80211_add_tx_ts,
4220         .del_tx_ts = ieee80211_del_tx_ts,
4221         .start_nan = ieee80211_start_nan,
4222         .stop_nan = ieee80211_stop_nan,
4223         .nan_change_conf = ieee80211_nan_change_conf,
4224         .add_nan_func = ieee80211_add_nan_func,
4225         .del_nan_func = ieee80211_del_nan_func,
4226         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4227         .tx_control_port = ieee80211_tx_control_port,
4228         .get_txq_stats = ieee80211_get_txq_stats,
4229         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4230         .start_pmsr = ieee80211_start_pmsr,
4231         .abort_pmsr = ieee80211_abort_pmsr,
4232         .probe_mesh_link = ieee80211_probe_mesh_link,
4233         .set_tid_config = ieee80211_set_tid_config,
4234         .reset_tid_config = ieee80211_reset_tid_config,
4235         .set_sar_specs = ieee80211_set_sar_specs,
4236 };