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
 832 ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 833                          const u8 *resp, size_t resp_len,
 834                          const struct ieee80211_csa_settings *csa,
 835                          const struct ieee80211_color_change_settings *cca)
 836 {
 837         struct probe_resp *new, *old;
 838
 839         if (!resp || !resp_len)
 840                 return 1;
 841
 842         old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 843
 844         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 845         if (!new)
 846                 return -ENOMEM;
 847
 848         new->len = resp_len;
 849         memcpy(new->data, resp, resp_len);
 850
 851         if (csa)
 852                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
 853                        csa->n_counter_offsets_presp *
 854                        sizeof(new->cntdwn_counter_offsets[0]));
 855         else if (cca)
 856                 new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
 857
 858         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 859         if (old)
 860                 kfree_rcu(old, rcu_head);
 861
 862         return 0;
 863 }
 864
 865 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
 866                                         struct cfg80211_fils_discovery *params)
 867 {
 868         struct fils_discovery_data *new, *old = NULL;
 869         struct ieee80211_fils_discovery *fd;
 870
 871         if (!params->tmpl || !params->tmpl_len)
 872                 return -EINVAL;
 873
 874         fd = &sdata->vif.bss_conf.fils_discovery;
 875         fd->min_interval = params->min_interval;
 876         fd->max_interval = params->max_interval;
 877
 878         old = sdata_dereference(sdata->u.ap.fils_discovery, sdata);
 879         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 880         if (!new)
 881                 return -ENOMEM;
 882         new->len = params->tmpl_len;
 883         memcpy(new->data, params->tmpl, params->tmpl_len);
 884         rcu_assign_pointer(sdata->u.ap.fils_discovery, new);
 885
 886         if (old)
 887                 kfree_rcu(old, rcu_head);
 888
 889         return 0;
 890 }
 891
 892 static int
 893 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
 894                                      struct cfg80211_unsol_bcast_probe_resp *params)
 895 {
 896         struct unsol_bcast_probe_resp_data *new, *old = NULL;
 897
 898         if (!params->tmpl || !params->tmpl_len)
 899                 return -EINVAL;
 900
 901         old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata);
 902         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 903         if (!new)
 904                 return -ENOMEM;
 905         new->len = params->tmpl_len;
 906         memcpy(new->data, params->tmpl, params->tmpl_len);
 907         rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new);
 908
 909         if (old)
 910                 kfree_rcu(old, rcu_head);
 911
 912         sdata->vif.bss_conf.unsol_bcast_probe_resp_interval =
 913                                                         params->interval;
 914
 915         return 0;
 916 }
 917
 918 static int ieee80211_set_ftm_responder_params(
 919                                 struct ieee80211_sub_if_data *sdata,
 920                                 const u8 *lci, size_t lci_len,
 921                                 const u8 *civicloc, size_t civicloc_len)
 922 {
 923         struct ieee80211_ftm_responder_params *new, *old;
 924         struct ieee80211_bss_conf *bss_conf;
 925         u8 *pos;
 926         int len;
 927
 928         if (!lci_len && !civicloc_len)
 929                 return 0;
 930
 931         bss_conf = &sdata->vif.bss_conf;
 932         old = bss_conf->ftmr_params;
 933         len = lci_len + civicloc_len;
 934
 935         new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
 936         if (!new)
 937                 return -ENOMEM;
 938
 939         pos = (u8 *)(new + 1);
 940         if (lci_len) {
 941                 new->lci_len = lci_len;
 942                 new->lci = pos;
 943                 memcpy(pos, lci, lci_len);
 944                 pos += lci_len;
 945         }
 946
 947         if (civicloc_len) {
 948                 new->civicloc_len = civicloc_len;
 949                 new->civicloc = pos;
 950                 memcpy(pos, civicloc, civicloc_len);
 951                 pos += civicloc_len;
 952         }
 953
 954         bss_conf->ftmr_params = new;
 955         kfree(old);
 956
 957         return 0;
 958 }
 959
 960 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 961                                    struct cfg80211_beacon_data *params,
 962                                    const struct ieee80211_csa_settings *csa,
 963                                    const struct ieee80211_color_change_settings *cca)
 964 {
 965         struct beacon_data *new, *old;
 966         int new_head_len, new_tail_len;
 967         int size, err;
 968         u32 changed = BSS_CHANGED_BEACON;
 969
 970         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 971
 972
 973         /* Need to have a beacon head if we don't have one yet */
 974         if (!params->head && !old)
 975                 return -EINVAL;
 976
 977         /* new or old head? */
 978         if (params->head)
 979                 new_head_len = params->head_len;
 980         else
 981                 new_head_len = old->head_len;
 982
 983         /* new or old tail? */
 984         if (params->tail || !old)
 985                 /* params->tail_len will be zero for !params->tail */
 986                 new_tail_len = params->tail_len;
 987         else
 988                 new_tail_len = old->tail_len;
 989
 990         size = sizeof(*new) + new_head_len + new_tail_len;
 991
 992         new = kzalloc(size, GFP_KERNEL);
 993         if (!new)
 994                 return -ENOMEM;
 995
 996         /* start filling the new info now */
 997
 998         /*
 999          * pointers go into the block we allocated,
1000          * memory is | beacon_data | head | tail |
1001          */
1002         new->head = ((u8 *) new) + sizeof(*new);
1003         new->tail = new->head + new_head_len;
1004         new->head_len = new_head_len;
1005         new->tail_len = new_tail_len;
1006
1007         if (csa) {
1008                 new->cntdwn_current_counter = csa->count;
1009                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1010                        csa->n_counter_offsets_beacon *
1011                        sizeof(new->cntdwn_counter_offsets[0]));
1012         } else if (cca) {
1013                 new->cntdwn_current_counter = cca->count;
1014                 new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1015         }
1016
1017         /* copy in head */
1018         if (params->head)
1019                 memcpy(new->head, params->head, new_head_len);
1020         else
1021                 memcpy(new->head, old->head, new_head_len);
1022
1023         /* copy in optional tail */
1024         if (params->tail)
1025                 memcpy(new->tail, params->tail, new_tail_len);
1026         else
1027                 if (old)
1028                         memcpy(new->tail, old->tail, new_tail_len);
1029
1030         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1031                                        params->probe_resp_len, csa, cca);
1032         if (err < 0) {
1033                 kfree(new);
1034                 return err;
1035         }
1036         if (err == 0)
1037                 changed |= BSS_CHANGED_AP_PROBE_RESP;
1038
1039         if (params->ftm_responder != -1) {
1040                 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
1041                 err = ieee80211_set_ftm_responder_params(sdata,
1042                                                          params->lci,
1043                                                          params->lci_len,
1044                                                          params->civicloc,
1045                                                          params->civicloc_len);
1046
1047                 if (err < 0) {
1048                         kfree(new);
1049                         return err;
1050                 }
1051
1052                 changed |= BSS_CHANGED_FTM_RESPONDER;
1053         }
1054
1055         rcu_assign_pointer(sdata->u.ap.beacon, new);
1056
1057         if (old)
1058                 kfree_rcu(old, rcu_head);
1059
1060         return changed;
1061 }
1062
1063 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1064                               struct cfg80211_ap_settings *params)
1065 {
1066         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1067         struct ieee80211_local *local = sdata->local;
1068         struct beacon_data *old;
1069         struct ieee80211_sub_if_data *vlan;
1070         u32 changed = BSS_CHANGED_BEACON_INT |
1071                       BSS_CHANGED_BEACON_ENABLED |
1072                       BSS_CHANGED_BEACON |
1073                       BSS_CHANGED_SSID |
1074                       BSS_CHANGED_P2P_PS |
1075                       BSS_CHANGED_TXPOWER |
1076                       BSS_CHANGED_TWT;
1077         int i, err;
1078         int prev_beacon_int;
1079
1080         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1081         if (old)
1082                 return -EALREADY;
1083
1084         if (params->smps_mode != NL80211_SMPS_OFF)
1085                 return -ENOTSUPP;
1086
1087         sdata->smps_mode = IEEE80211_SMPS_OFF;
1088
1089         sdata->needed_rx_chains = sdata->local->rx_chains;
1090
1091         prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1092         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1093
1094         if (params->he_cap && params->he_oper) {
1095                 sdata->vif.bss_conf.he_support = true;
1096                 sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1097                         le32_get_bits(params->he_oper->he_oper_params,
1098                               IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1099                 sdata->vif.bss_conf.frame_time_rts_th =
1100                         le32_get_bits(params->he_oper->he_oper_params,
1101                               IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1102                 changed |= BSS_CHANGED_HE_OBSS_PD;
1103
1104                 if (params->he_bss_color.enabled)
1105                         changed |= BSS_CHANGED_HE_BSS_COLOR;
1106         }
1107
1108         mutex_lock(&local->mtx);
1109         err = ieee80211_vif_use_channel(sdata, &params->chandef,
1110                                         IEEE80211_CHANCTX_SHARED);
1111         if (!err)
1112                 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1113         mutex_unlock(&local->mtx);
1114         if (err) {
1115                 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1116                 return err;
1117         }
1118
1119         /*
1120          * Apply control port protocol, this allows us to
1121          * not encrypt dynamic WEP control frames.
1122          */
1123         sdata->control_port_protocol = params->crypto.control_port_ethertype;
1124         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1125         sdata->control_port_over_nl80211 =
1126                                 params->crypto.control_port_over_nl80211;
1127         sdata->control_port_no_preauth =
1128                                 params->crypto.control_port_no_preauth;
1129         sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1130                                                         &params->crypto,
1131                                                         sdata->vif.type);
1132
1133         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1134                 vlan->control_port_protocol =
1135                         params->crypto.control_port_ethertype;
1136                 vlan->control_port_no_encrypt =
1137                         params->crypto.control_port_no_encrypt;
1138                 vlan->control_port_over_nl80211 =
1139                         params->crypto.control_port_over_nl80211;
1140                 vlan->control_port_no_preauth =
1141                         params->crypto.control_port_no_preauth;
1142                 vlan->encrypt_headroom =
1143                         ieee80211_cs_headroom(sdata->local,
1144                                               &params->crypto,
1145                                               vlan->vif.type);
1146         }
1147
1148         sdata->vif.bss_conf.dtim_period = params->dtim_period;
1149         sdata->vif.bss_conf.enable_beacon = true;
1150         sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1151         sdata->vif.bss_conf.twt_responder = params->twt_responder;
1152         sdata->vif.bss_conf.he_obss_pd = params->he_obss_pd;
1153         sdata->vif.bss_conf.he_bss_color = params->he_bss_color;
1154         sdata->vif.bss_conf.s1g = params->chandef.chan->band ==
1155                                   NL80211_BAND_S1GHZ;
1156
1157         sdata->vif.bss_conf.ssid_len = params->ssid_len;
1158         if (params->ssid_len)
1159                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1160                        params->ssid_len);
1161         sdata->vif.bss_conf.hidden_ssid =
1162                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1163
1164         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1165                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1166         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1167                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1168         if (params->p2p_opp_ps)
1169                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1170                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1171
1172         sdata->beacon_rate_set = false;
1173         if (wiphy_ext_feature_isset(local->hw.wiphy,
1174                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1175                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1176                         sdata->beacon_rateidx_mask[i] =
1177                                 params->beacon_rate.control[i].legacy;
1178                         if (sdata->beacon_rateidx_mask[i])
1179                                 sdata->beacon_rate_set = true;
1180                 }
1181         }
1182
1183         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1184                 sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate;
1185
1186         err = ieee80211_assign_beacon(sdata, &params->beacon, NULL, NULL);
1187         if (err < 0)
1188                 goto error;
1189         changed |= err;
1190
1191         if (params->fils_discovery.max_interval) {
1192                 err = ieee80211_set_fils_discovery(sdata,
1193                                                    &params->fils_discovery);
1194                 if (err < 0)
1195                         goto error;
1196                 changed |= BSS_CHANGED_FILS_DISCOVERY;
1197         }
1198
1199         if (params->unsol_bcast_probe_resp.interval) {
1200                 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1201                                                            &params->unsol_bcast_probe_resp);
1202                 if (err < 0)
1203                         goto error;
1204                 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1205         }
1206
1207         err = drv_start_ap(sdata->local, sdata);
1208         if (err) {
1209                 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1210
1211                 if (old)
1212                         kfree_rcu(old, rcu_head);
1213                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1214                 goto error;
1215         }
1216
1217         ieee80211_recalc_dtim(local, sdata);
1218         ieee80211_bss_info_change_notify(sdata, changed);
1219
1220         netif_carrier_on(dev);
1221         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1222                 netif_carrier_on(vlan->dev);
1223
1224         return 0;
1225
1226 error:
1227         ieee80211_vif_release_channel(sdata);
1228         return err;
1229 }
1230
1231 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1232                                    struct cfg80211_beacon_data *params)
1233 {
1234         struct ieee80211_sub_if_data *sdata;
1235         struct beacon_data *old;
1236         int err;
1237
1238         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1239         sdata_assert_lock(sdata);
1240
1241         /* don't allow changing the beacon while a countdown is in place - offset
1242          * of channel switch counter may change
1243          */
1244         if (sdata->vif.csa_active || sdata->vif.color_change_active)
1245                 return -EBUSY;
1246
1247         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1248         if (!old)
1249                 return -ENOENT;
1250
1251         err = ieee80211_assign_beacon(sdata, params, NULL, NULL);
1252         if (err < 0)
1253                 return err;
1254         ieee80211_bss_info_change_notify(sdata, err);
1255         return 0;
1256 }
1257
1258 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1259 {
1260         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1261         struct ieee80211_sub_if_data *vlan;
1262         struct ieee80211_local *local = sdata->local;
1263         struct beacon_data *old_beacon;
1264         struct probe_resp *old_probe_resp;
1265         struct fils_discovery_data *old_fils_discovery;
1266         struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1267         struct cfg80211_chan_def chandef;
1268
1269         sdata_assert_lock(sdata);
1270
1271         old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1272         if (!old_beacon)
1273                 return -ENOENT;
1274         old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1275         old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery,
1276                                                sdata);
1277         old_unsol_bcast_probe_resp =
1278                 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp,
1279                                   sdata);
1280
1281         /* abort any running channel switch */
1282         mutex_lock(&local->mtx);
1283         sdata->vif.csa_active = false;
1284         if (sdata->csa_block_tx) {
1285                 ieee80211_wake_vif_queues(local, sdata,
1286                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1287                 sdata->csa_block_tx = false;
1288         }
1289
1290         mutex_unlock(&local->mtx);
1291
1292         kfree(sdata->u.ap.next_beacon);
1293         sdata->u.ap.next_beacon = NULL;
1294
1295         /* turn off carrier for this interface and dependent VLANs */
1296         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1297                 netif_carrier_off(vlan->dev);
1298         netif_carrier_off(dev);
1299
1300         /* remove beacon and probe response */
1301         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1302         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1303         RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL);
1304         RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL);
1305         kfree_rcu(old_beacon, rcu_head);
1306         if (old_probe_resp)
1307                 kfree_rcu(old_probe_resp, rcu_head);
1308         if (old_fils_discovery)
1309                 kfree_rcu(old_fils_discovery, rcu_head);
1310         if (old_unsol_bcast_probe_resp)
1311                 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1312
1313         kfree(sdata->vif.bss_conf.ftmr_params);
1314         sdata->vif.bss_conf.ftmr_params = NULL;
1315
1316         __sta_info_flush(sdata, true);
1317         ieee80211_free_keys(sdata, true);
1318
1319         sdata->vif.bss_conf.enable_beacon = false;
1320         sdata->beacon_rate_set = false;
1321         sdata->vif.bss_conf.ssid_len = 0;
1322         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1323         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1324
1325         if (sdata->wdev.cac_started) {
1326                 chandef = sdata->vif.bss_conf.chandef;
1327                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1328                 cfg80211_cac_event(sdata->dev, &chandef,
1329                                    NL80211_RADAR_CAC_ABORTED,
1330                                    GFP_KERNEL);
1331         }
1332
1333         drv_stop_ap(sdata->local, sdata);
1334
1335         /* free all potentially still buffered bcast frames */
1336         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1337         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1338
1339         mutex_lock(&local->mtx);
1340         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1341         ieee80211_vif_release_channel(sdata);
1342         mutex_unlock(&local->mtx);
1343
1344         return 0;
1345 }
1346
1347 static int sta_apply_auth_flags(struct ieee80211_local *local,
1348                                 struct sta_info *sta,
1349                                 u32 mask, u32 set)
1350 {
1351         int ret;
1352
1353         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1354             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1355             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1356                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1357                 if (ret)
1358                         return ret;
1359         }
1360
1361         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1362             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1363             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1364                 /*
1365                  * When peer becomes associated, init rate control as
1366                  * well. Some drivers require rate control initialized
1367                  * before drv_sta_state() is called.
1368                  */
1369                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1370                         rate_control_rate_init(sta);
1371
1372                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1373                 if (ret)
1374                         return ret;
1375         }
1376
1377         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1378                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1379                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1380                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1381                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1382                 else
1383                         ret = 0;
1384                 if (ret)
1385                         return ret;
1386         }
1387
1388         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1389             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1390             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1391                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1392                 if (ret)
1393                         return ret;
1394         }
1395
1396         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1397             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1398             test_sta_flag(sta, WLAN_STA_AUTH)) {
1399                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1400                 if (ret)
1401                         return ret;
1402         }
1403
1404         return 0;
1405 }
1406
1407 static void sta_apply_mesh_params(struct ieee80211_local *local,
1408                                   struct sta_info *sta,
1409                                   struct station_parameters *params)
1410 {
1411 #ifdef CONFIG_MAC80211_MESH
1412         struct ieee80211_sub_if_data *sdata = sta->sdata;
1413         u32 changed = 0;
1414
1415         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1416                 switch (params->plink_state) {
1417                 case NL80211_PLINK_ESTAB:
1418                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1419                                 changed = mesh_plink_inc_estab_count(sdata);
1420                         sta->mesh->plink_state = params->plink_state;
1421                         sta->mesh->aid = params->peer_aid;
1422
1423                         ieee80211_mps_sta_status_update(sta);
1424                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1425                                       sdata->u.mesh.mshcfg.power_mode);
1426
1427                         ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1428                         /* init at low value */
1429                         ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1430
1431                         break;
1432                 case NL80211_PLINK_LISTEN:
1433                 case NL80211_PLINK_BLOCKED:
1434                 case NL80211_PLINK_OPN_SNT:
1435                 case NL80211_PLINK_OPN_RCVD:
1436                 case NL80211_PLINK_CNF_RCVD:
1437                 case NL80211_PLINK_HOLDING:
1438                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1439                                 changed = mesh_plink_dec_estab_count(sdata);
1440                         sta->mesh->plink_state = params->plink_state;
1441
1442                         ieee80211_mps_sta_status_update(sta);
1443                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1444                                         NL80211_MESH_POWER_UNKNOWN);
1445                         break;
1446                 default:
1447                         /*  nothing  */
1448                         break;
1449                 }
1450         }
1451
1452         switch (params->plink_action) {
1453         case NL80211_PLINK_ACTION_NO_ACTION:
1454                 /* nothing */
1455                 break;
1456         case NL80211_PLINK_ACTION_OPEN:
1457                 changed |= mesh_plink_open(sta);
1458                 break;
1459         case NL80211_PLINK_ACTION_BLOCK:
1460                 changed |= mesh_plink_block(sta);
1461                 break;
1462         }
1463
1464         if (params->local_pm)
1465                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1466                                                           params->local_pm);
1467
1468         ieee80211_mbss_info_change_notify(sdata, changed);
1469 #endif
1470 }
1471
1472 static void sta_apply_airtime_params(struct ieee80211_local *local,
1473                                      struct sta_info *sta,
1474                                      struct station_parameters *params)
1475 {
1476         u8 ac;
1477
1478         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
1479                 struct airtime_sched_info *air_sched = &local->airtime[ac];
1480                 struct airtime_info *air_info = &sta->airtime[ac];
1481                 struct txq_info *txqi;
1482                 u8 tid;
1483
1484                 spin_lock_bh(&air_sched->lock);
1485                 for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
1486                         if (air_info->weight == params->airtime_weight ||
1487                             !sta->sta.txq[tid] ||
1488                             ac != ieee80211_ac_from_tid(tid))
1489                                 continue;
1490
1491                         airtime_weight_set(air_info, params->airtime_weight);
1492
1493                         txqi = to_txq_info(sta->sta.txq[tid]);
1494                         if (RB_EMPTY_NODE(&txqi->schedule_order))
1495                                 continue;
1496
1497                         ieee80211_update_airtime_weight(local, air_sched,
1498                                                         0, true);
1499                 }
1500                 spin_unlock_bh(&air_sched->lock);
1501         }
1502 }
1503
1504 static int sta_apply_parameters(struct ieee80211_local *local,
1505                                 struct sta_info *sta,
1506                                 struct station_parameters *params)
1507 {
1508         int ret = 0;
1509         struct ieee80211_supported_band *sband;
1510         struct ieee80211_sub_if_data *sdata = sta->sdata;
1511         u32 mask, set;
1512
1513         sband = ieee80211_get_sband(sdata);
1514         if (!sband)
1515                 return -EINVAL;
1516
1517         mask = params->sta_flags_mask;
1518         set = params->sta_flags_set;
1519
1520         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1521                 /*
1522                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1523                  * API but must follow AUTHENTICATED for driver state.
1524                  */
1525                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1526                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1527                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1528                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1529         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1530                 /*
1531                  * TDLS -- everything follows authorized, but
1532                  * only becoming authorized is possible, not
1533                  * going back
1534                  */
1535                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1536                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1537                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1538                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1539                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1540                 }
1541         }
1542
1543         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1544             local->hw.queues >= IEEE80211_NUM_ACS)
1545                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1546
1547         /* auth flags will be set later for TDLS,
1548          * and for unassociated stations that move to associated */
1549         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1550             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1551               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1552                 ret = sta_apply_auth_flags(local, sta, mask, set);
1553                 if (ret)
1554                         return ret;
1555         }
1556
1557         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1558                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1559                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1560                 else
1561                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1562         }
1563
1564         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1565                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1566                 if (set & BIT(NL80211_STA_FLAG_MFP))
1567                         set_sta_flag(sta, WLAN_STA_MFP);
1568                 else
1569                         clear_sta_flag(sta, WLAN_STA_MFP);
1570         }
1571
1572         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1573                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1574                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1575                 else
1576                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1577         }
1578
1579         /* mark TDLS channel switch support, if the AP allows it */
1580         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1581             !sdata->u.mgd.tdls_chan_switch_prohibited &&
1582             params->ext_capab_len >= 4 &&
1583             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1584                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1585
1586         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1587             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1588             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1589             params->ext_capab_len >= 8 &&
1590             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1591                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1592
1593         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1594                 sta->sta.uapsd_queues = params->uapsd_queues;
1595                 sta->sta.max_sp = params->max_sp;
1596         }
1597
1598         /* The sender might not have sent the last bit, consider it to be 0 */
1599         if (params->ext_capab_len >= 8) {
1600                 u8 val = (params->ext_capab[7] &
1601                           WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1602
1603                 /* we did get all the bits, take the MSB as well */
1604                 if (params->ext_capab_len >= 9) {
1605                         u8 val_msb = params->ext_capab[8] &
1606                                 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1607                         val_msb <<= 1;
1608                         val |= val_msb;
1609                 }
1610
1611                 switch (val) {
1612                 case 1:
1613                         sta->sta.max_amsdu_subframes = 32;
1614                         break;
1615                 case 2:
1616                         sta->sta.max_amsdu_subframes = 16;
1617                         break;
1618                 case 3:
1619                         sta->sta.max_amsdu_subframes = 8;
1620                         break;
1621                 default:
1622                         sta->sta.max_amsdu_subframes = 0;
1623                 }
1624         }
1625
1626         /*
1627          * cfg80211 validates this (1-2007) and allows setting the AID
1628          * only when creating a new station entry
1629          */
1630         if (params->aid)
1631                 sta->sta.aid = params->aid;
1632
1633         /*
1634          * Some of the following updates would be racy if called on an
1635          * existing station, via ieee80211_change_station(). However,
1636          * all such changes are rejected by cfg80211 except for updates
1637          * changing the supported rates on an existing but not yet used
1638          * TDLS peer.
1639          */
1640
1641         if (params->listen_interval >= 0)
1642                 sta->listen_interval = params->listen_interval;
1643
1644         if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1645                 sta->sta.txpwr.type = params->txpwr.type;
1646                 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1647                         sta->sta.txpwr.power = params->txpwr.power;
1648                 ret = drv_sta_set_txpwr(local, sdata, sta);
1649                 if (ret)
1650                         return ret;
1651         }
1652
1653         if (params->supported_rates && params->supported_rates_len) {
1654                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1655                                          sband, params->supported_rates,
1656                                          params->supported_rates_len,
1657                                          &sta->sta.supp_rates[sband->band]);
1658         }
1659
1660         if (params->ht_capa)
1661                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1662                                                   params->ht_capa, sta);
1663
1664         /* VHT can override some HT caps such as the A-MSDU max length */
1665         if (params->vht_capa)
1666                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1667                                                     params->vht_capa, sta);
1668
1669         if (params->he_capa)
1670                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1671                                                   (void *)params->he_capa,
1672                                                   params->he_capa_len,
1673                                                   (void *)params->he_6ghz_capa,
1674                                                   sta);
1675
1676         if (params->opmode_notif_used) {
1677                 /* returned value is only needed for rc update, but the
1678                  * rc isn't initialized here yet, so ignore it
1679                  */
1680                 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1681                                               sband->band);
1682         }
1683
1684         if (params->support_p2p_ps >= 0)
1685                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1686
1687         if (ieee80211_vif_is_mesh(&sdata->vif))
1688                 sta_apply_mesh_params(local, sta, params);
1689
1690         if (params->airtime_weight)
1691                 sta_apply_airtime_params(local, sta, params);
1692
1693
1694         /* set the STA state after all sta info from usermode has been set */
1695         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1696             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1697                 ret = sta_apply_auth_flags(local, sta, mask, set);
1698                 if (ret)
1699                         return ret;
1700         }
1701
1702         return 0;
1703 }
1704
1705 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1706                                  const u8 *mac,
1707                                  struct station_parameters *params)
1708 {
1709         struct ieee80211_local *local = wiphy_priv(wiphy);
1710         struct sta_info *sta;
1711         struct ieee80211_sub_if_data *sdata;
1712         int err;
1713
1714         if (params->vlan) {
1715                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1716
1717                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1718                     sdata->vif.type != NL80211_IFTYPE_AP)
1719                         return -EINVAL;
1720         } else
1721                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1722
1723         if (ether_addr_equal(mac, sdata->vif.addr))
1724                 return -EINVAL;
1725
1726         if (!is_valid_ether_addr(mac))
1727                 return -EINVAL;
1728
1729         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1730             sdata->vif.type == NL80211_IFTYPE_STATION &&
1731             !sdata->u.mgd.associated)
1732                 return -EINVAL;
1733
1734         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1735         if (!sta)
1736                 return -ENOMEM;
1737
1738         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1739                 sta->sta.tdls = true;
1740
1741         err = sta_apply_parameters(local, sta, params);
1742         if (err) {
1743                 sta_info_free(local, sta);
1744                 return err;
1745         }
1746
1747         /*
1748          * for TDLS and for unassociated station, rate control should be
1749          * initialized only when rates are known and station is marked
1750          * authorized/associated
1751          */
1752         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1753             test_sta_flag(sta, WLAN_STA_ASSOC))
1754                 rate_control_rate_init(sta);
1755
1756         return sta_info_insert(sta);
1757 }
1758
1759 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1760                                  struct station_del_parameters *params)
1761 {
1762         struct ieee80211_sub_if_data *sdata;
1763
1764         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1765
1766         if (params->mac)
1767                 return sta_info_destroy_addr_bss(sdata, params->mac);
1768
1769         sta_info_flush(sdata);
1770         return 0;
1771 }
1772
1773 static int ieee80211_change_station(struct wiphy *wiphy,
1774                                     struct net_device *dev, const u8 *mac,
1775                                     struct station_parameters *params)
1776 {
1777         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1778         struct ieee80211_local *local = wiphy_priv(wiphy);
1779         struct sta_info *sta;
1780         struct ieee80211_sub_if_data *vlansdata;
1781         enum cfg80211_station_type statype;
1782         int err;
1783
1784         mutex_lock(&local->sta_mtx);
1785
1786         sta = sta_info_get_bss(sdata, mac);
1787         if (!sta) {
1788                 err = -ENOENT;
1789                 goto out_err;
1790         }
1791
1792         switch (sdata->vif.type) {
1793         case NL80211_IFTYPE_MESH_POINT:
1794                 if (sdata->u.mesh.user_mpm)
1795                         statype = CFG80211_STA_MESH_PEER_USER;
1796                 else
1797                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1798                 break;
1799         case NL80211_IFTYPE_ADHOC:
1800                 statype = CFG80211_STA_IBSS;
1801                 break;
1802         case NL80211_IFTYPE_STATION:
1803                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1804                         statype = CFG80211_STA_AP_STA;
1805                         break;
1806                 }
1807                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1808                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1809                 else
1810                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1811                 break;
1812         case NL80211_IFTYPE_AP:
1813         case NL80211_IFTYPE_AP_VLAN:
1814                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1815                         statype = CFG80211_STA_AP_CLIENT;
1816                 else
1817                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1818                 break;
1819         default:
1820                 err = -EOPNOTSUPP;
1821                 goto out_err;
1822         }
1823
1824         err = cfg80211_check_station_change(wiphy, params, statype);
1825         if (err)
1826                 goto out_err;
1827
1828         if (params->vlan && params->vlan != sta->sdata->dev) {
1829                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1830
1831                 if (params->vlan->ieee80211_ptr->use_4addr) {
1832                         if (vlansdata->u.vlan.sta) {
1833                                 err = -EBUSY;
1834                                 goto out_err;
1835                         }
1836
1837                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1838                         __ieee80211_check_fast_rx_iface(vlansdata);
1839                         drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1840                 }
1841
1842                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1843                     sta->sdata->u.vlan.sta) {
1844                         ieee80211_clear_fast_rx(sta);
1845                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1846                 }
1847
1848                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1849                         ieee80211_vif_dec_num_mcast(sta->sdata);
1850
1851                 sta->sdata = vlansdata;
1852                 ieee80211_check_fast_xmit(sta);
1853
1854                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1855                         ieee80211_vif_inc_num_mcast(sta->sdata);
1856                         cfg80211_send_layer2_update(sta->sdata->dev,
1857                                                     sta->sta.addr);
1858                 }
1859         }
1860
1861         err = sta_apply_parameters(local, sta, params);
1862         if (err)
1863                 goto out_err;
1864
1865         mutex_unlock(&local->sta_mtx);
1866
1867         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1868             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1869                 ieee80211_recalc_ps(local);
1870                 ieee80211_recalc_ps_vif(sdata);
1871         }
1872
1873         return 0;
1874 out_err:
1875         mutex_unlock(&local->sta_mtx);
1876         return err;
1877 }
1878
1879 #ifdef CONFIG_MAC80211_MESH
1880 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1881                                const u8 *dst, const u8 *next_hop)
1882 {
1883         struct ieee80211_sub_if_data *sdata;
1884         struct mesh_path *mpath;
1885         struct sta_info *sta;
1886
1887         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1888
1889         rcu_read_lock();
1890         sta = sta_info_get(sdata, next_hop);
1891         if (!sta) {
1892                 rcu_read_unlock();
1893                 return -ENOENT;
1894         }
1895
1896         mpath = mesh_path_add(sdata, dst);
1897         if (IS_ERR(mpath)) {
1898                 rcu_read_unlock();
1899                 return PTR_ERR(mpath);
1900         }
1901
1902         mesh_path_fix_nexthop(mpath, sta);
1903
1904         rcu_read_unlock();
1905         return 0;
1906 }
1907
1908 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1909                                const u8 *dst)
1910 {
1911         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1912
1913         if (dst)
1914                 return mesh_path_del(sdata, dst);
1915
1916         mesh_path_flush_by_iface(sdata);
1917         return 0;
1918 }
1919
1920 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1921                                   const u8 *dst, const u8 *next_hop)
1922 {
1923         struct ieee80211_sub_if_data *sdata;
1924         struct mesh_path *mpath;
1925         struct sta_info *sta;
1926
1927         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1928
1929         rcu_read_lock();
1930
1931         sta = sta_info_get(sdata, next_hop);
1932         if (!sta) {
1933                 rcu_read_unlock();
1934                 return -ENOENT;
1935         }
1936
1937         mpath = mesh_path_lookup(sdata, dst);
1938         if (!mpath) {
1939                 rcu_read_unlock();
1940                 return -ENOENT;
1941         }
1942
1943         mesh_path_fix_nexthop(mpath, sta);
1944
1945         rcu_read_unlock();
1946         return 0;
1947 }
1948
1949 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1950                             struct mpath_info *pinfo)
1951 {
1952         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1953
1954         if (next_hop_sta)
1955                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1956         else
1957                 eth_zero_addr(next_hop);
1958
1959         memset(pinfo, 0, sizeof(*pinfo));
1960
1961         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1962
1963         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1964                         MPATH_INFO_SN |
1965                         MPATH_INFO_METRIC |
1966                         MPATH_INFO_EXPTIME |
1967                         MPATH_INFO_DISCOVERY_TIMEOUT |
1968                         MPATH_INFO_DISCOVERY_RETRIES |
1969                         MPATH_INFO_FLAGS |
1970                         MPATH_INFO_HOP_COUNT |
1971                         MPATH_INFO_PATH_CHANGE;
1972
1973         pinfo->frame_qlen = mpath->frame_queue.qlen;
1974         pinfo->sn = mpath->sn;
1975         pinfo->metric = mpath->metric;
1976         if (time_before(jiffies, mpath->exp_time))
1977                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1978         pinfo->discovery_timeout =
1979                         jiffies_to_msecs(mpath->discovery_timeout);
1980         pinfo->discovery_retries = mpath->discovery_retries;
1981         if (mpath->flags & MESH_PATH_ACTIVE)
1982                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1983         if (mpath->flags & MESH_PATH_RESOLVING)
1984                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1985         if (mpath->flags & MESH_PATH_SN_VALID)
1986                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1987         if (mpath->flags & MESH_PATH_FIXED)
1988                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1989         if (mpath->flags & MESH_PATH_RESOLVED)
1990                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1991         pinfo->hop_count = mpath->hop_count;
1992         pinfo->path_change_count = mpath->path_change_count;
1993 }
1994
1995 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1996                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1997
1998 {
1999         struct ieee80211_sub_if_data *sdata;
2000         struct mesh_path *mpath;
2001
2002         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2003
2004         rcu_read_lock();
2005         mpath = mesh_path_lookup(sdata, dst);
2006         if (!mpath) {
2007                 rcu_read_unlock();
2008                 return -ENOENT;
2009         }
2010         memcpy(dst, mpath->dst, ETH_ALEN);
2011         mpath_set_pinfo(mpath, next_hop, pinfo);
2012         rcu_read_unlock();
2013         return 0;
2014 }
2015
2016 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2017                                 int idx, u8 *dst, u8 *next_hop,
2018                                 struct mpath_info *pinfo)
2019 {
2020         struct ieee80211_sub_if_data *sdata;
2021         struct mesh_path *mpath;
2022
2023         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2024
2025         rcu_read_lock();
2026         mpath = mesh_path_lookup_by_idx(sdata, idx);
2027         if (!mpath) {
2028                 rcu_read_unlock();
2029                 return -ENOENT;
2030         }
2031         memcpy(dst, mpath->dst, ETH_ALEN);
2032         mpath_set_pinfo(mpath, next_hop, pinfo);
2033         rcu_read_unlock();
2034         return 0;
2035 }
2036
2037 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2038                           struct mpath_info *pinfo)
2039 {
2040         memset(pinfo, 0, sizeof(*pinfo));
2041         memcpy(mpp, mpath->mpp, ETH_ALEN);
2042
2043         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2044 }
2045
2046 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2047                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2048
2049 {
2050         struct ieee80211_sub_if_data *sdata;
2051         struct mesh_path *mpath;
2052
2053         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2054
2055         rcu_read_lock();
2056         mpath = mpp_path_lookup(sdata, dst);
2057         if (!mpath) {
2058                 rcu_read_unlock();
2059                 return -ENOENT;
2060         }
2061         memcpy(dst, mpath->dst, ETH_ALEN);
2062         mpp_set_pinfo(mpath, mpp, pinfo);
2063         rcu_read_unlock();
2064         return 0;
2065 }
2066
2067 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2068                               int idx, u8 *dst, u8 *mpp,
2069                               struct mpath_info *pinfo)
2070 {
2071         struct ieee80211_sub_if_data *sdata;
2072         struct mesh_path *mpath;
2073
2074         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2075
2076         rcu_read_lock();
2077         mpath = mpp_path_lookup_by_idx(sdata, idx);
2078         if (!mpath) {
2079                 rcu_read_unlock();
2080                 return -ENOENT;
2081         }
2082         memcpy(dst, mpath->dst, ETH_ALEN);
2083         mpp_set_pinfo(mpath, mpp, pinfo);
2084         rcu_read_unlock();
2085         return 0;
2086 }
2087
2088 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2089                                 struct net_device *dev,
2090                                 struct mesh_config *conf)
2091 {
2092         struct ieee80211_sub_if_data *sdata;
2093         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2094
2095         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2096         return 0;
2097 }
2098
2099 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2100 {
2101         return (mask >> (parm-1)) & 0x1;
2102 }
2103
2104 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2105                 const struct mesh_setup *setup)
2106 {
2107         u8 *new_ie;
2108         const u8 *old_ie;
2109         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2110                                         struct ieee80211_sub_if_data, u.mesh);
2111         int i;
2112
2113         /* allocate information elements */
2114         new_ie = NULL;
2115         old_ie = ifmsh->ie;
2116
2117         if (setup->ie_len) {
2118                 new_ie = kmemdup(setup->ie, setup->ie_len,
2119                                 GFP_KERNEL);
2120                 if (!new_ie)
2121                         return -ENOMEM;
2122         }
2123         ifmsh->ie_len = setup->ie_len;
2124         ifmsh->ie = new_ie;
2125         kfree(old_ie);
2126
2127         /* now copy the rest of the setup parameters */
2128         ifmsh->mesh_id_len = setup->mesh_id_len;
2129         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2130         ifmsh->mesh_sp_id = setup->sync_method;
2131         ifmsh->mesh_pp_id = setup->path_sel_proto;
2132         ifmsh->mesh_pm_id = setup->path_metric;
2133         ifmsh->user_mpm = setup->user_mpm;
2134         ifmsh->mesh_auth_id = setup->auth_id;
2135         ifmsh->security = IEEE80211_MESH_SEC_NONE;
2136         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2137         if (setup->is_authenticated)
2138                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2139         if (setup->is_secure)
2140                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2141
2142         /* mcast rate setting in Mesh Node */
2143         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2144                                                 sizeof(setup->mcast_rate));
2145         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2146
2147         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2148         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2149
2150         sdata->beacon_rate_set = false;
2151         if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2152                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2153                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2154                         sdata->beacon_rateidx_mask[i] =
2155                                 setup->beacon_rate.control[i].legacy;
2156                         if (sdata->beacon_rateidx_mask[i])
2157                                 sdata->beacon_rate_set = true;
2158                 }
2159         }
2160
2161         return 0;
2162 }
2163
2164 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2165                                         struct net_device *dev, u32 mask,
2166                                         const struct mesh_config *nconf)
2167 {
2168         struct mesh_config *conf;
2169         struct ieee80211_sub_if_data *sdata;
2170         struct ieee80211_if_mesh *ifmsh;
2171
2172         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2173         ifmsh = &sdata->u.mesh;
2174
2175         /* Set the config options which we are interested in setting */
2176         conf = &(sdata->u.mesh.mshcfg);
2177         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2178                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2179         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2180                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2181         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2182                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2183         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2184                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2185         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2186                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2187         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2188                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2189         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2190                 conf->element_ttl = nconf->element_ttl;
2191         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2192                 if (ifmsh->user_mpm)
2193                         return -EBUSY;
2194                 conf->auto_open_plinks = nconf->auto_open_plinks;
2195         }
2196         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2197                 conf->dot11MeshNbrOffsetMaxNeighbor =
2198                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2199         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2200                 conf->dot11MeshHWMPmaxPREQretries =
2201                         nconf->dot11MeshHWMPmaxPREQretries;
2202         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2203                 conf->path_refresh_time = nconf->path_refresh_time;
2204         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2205                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2206         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2207                 conf->dot11MeshHWMPactivePathTimeout =
2208                         nconf->dot11MeshHWMPactivePathTimeout;
2209         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2210                 conf->dot11MeshHWMPpreqMinInterval =
2211                         nconf->dot11MeshHWMPpreqMinInterval;
2212         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2213                 conf->dot11MeshHWMPperrMinInterval =
2214                         nconf->dot11MeshHWMPperrMinInterval;
2215         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2216                            mask))
2217                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2218                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2219         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2220                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2221                 ieee80211_mesh_root_setup(ifmsh);
2222         }
2223         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2224                 /* our current gate announcement implementation rides on root
2225                  * announcements, so require this ifmsh to also be a root node
2226                  * */
2227                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2228                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2229                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2230                         ieee80211_mesh_root_setup(ifmsh);
2231                 }
2232                 conf->dot11MeshGateAnnouncementProtocol =
2233                         nconf->dot11MeshGateAnnouncementProtocol;
2234         }
2235         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2236                 conf->dot11MeshHWMPRannInterval =
2237                         nconf->dot11MeshHWMPRannInterval;
2238         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2239                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2240         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2241                 /* our RSSI threshold implementation is supported only for
2242                  * devices that report signal in dBm.
2243                  */
2244                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2245                         return -ENOTSUPP;
2246                 conf->rssi_threshold = nconf->rssi_threshold;
2247         }
2248         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2249                 conf->ht_opmode = nconf->ht_opmode;
2250                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2251                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2252         }
2253         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2254                 conf->dot11MeshHWMPactivePathToRootTimeout =
2255                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2256         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2257                 conf->dot11MeshHWMProotInterval =
2258                         nconf->dot11MeshHWMProotInterval;
2259         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2260                 conf->dot11MeshHWMPconfirmationInterval =
2261                         nconf->dot11MeshHWMPconfirmationInterval;
2262         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2263                 conf->power_mode = nconf->power_mode;
2264                 ieee80211_mps_local_status_update(sdata);
2265         }
2266         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2267                 conf->dot11MeshAwakeWindowDuration =
2268                         nconf->dot11MeshAwakeWindowDuration;
2269         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2270                 conf->plink_timeout = nconf->plink_timeout;
2271         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2272                 conf->dot11MeshConnectedToMeshGate =
2273                         nconf->dot11MeshConnectedToMeshGate;
2274         if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2275                 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2276         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2277                 conf->dot11MeshConnectedToAuthServer =
2278                         nconf->dot11MeshConnectedToAuthServer;
2279         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2280         return 0;
2281 }
2282
2283 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2284                                const struct mesh_config *conf,
2285                                const struct mesh_setup *setup)
2286 {
2287         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2288         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2289         int err;
2290
2291         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2292         err = copy_mesh_setup(ifmsh, setup);
2293         if (err)
2294                 return err;
2295
2296         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2297
2298         /* can mesh use other SMPS modes? */
2299         sdata->smps_mode = IEEE80211_SMPS_OFF;
2300         sdata->needed_rx_chains = sdata->local->rx_chains;
2301
2302         mutex_lock(&sdata->local->mtx);
2303         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2304                                         IEEE80211_CHANCTX_SHARED);
2305         mutex_unlock(&sdata->local->mtx);
2306         if (err)
2307                 return err;
2308
2309         return ieee80211_start_mesh(sdata);
2310 }
2311
2312 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2313 {
2314         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2315
2316         ieee80211_stop_mesh(sdata);
2317         mutex_lock(&sdata->local->mtx);
2318         ieee80211_vif_release_channel(sdata);
2319         kfree(sdata->u.mesh.ie);
2320         mutex_unlock(&sdata->local->mtx);
2321
2322         return 0;
2323 }
2324 #endif
2325
2326 static int ieee80211_change_bss(struct wiphy *wiphy,
2327                                 struct net_device *dev,
2328                                 struct bss_parameters *params)
2329 {
2330         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2331         struct ieee80211_supported_band *sband;
2332         u32 changed = 0;
2333
2334         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2335                 return -ENOENT;
2336
2337         sband = ieee80211_get_sband(sdata);
2338         if (!sband)
2339                 return -EINVAL;
2340
2341         if (params->use_cts_prot >= 0) {
2342                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2343                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2344         }
2345         if (params->use_short_preamble >= 0) {
2346                 sdata->vif.bss_conf.use_short_preamble =
2347                         params->use_short_preamble;
2348                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2349         }
2350
2351         if (!sdata->vif.bss_conf.use_short_slot &&
2352             (sband->band == NL80211_BAND_5GHZ ||
2353              sband->band == NL80211_BAND_6GHZ)) {
2354                 sdata->vif.bss_conf.use_short_slot = true;
2355                 changed |= BSS_CHANGED_ERP_SLOT;
2356         }
2357
2358         if (params->use_short_slot_time >= 0) {
2359                 sdata->vif.bss_conf.use_short_slot =
2360                         params->use_short_slot_time;
2361                 changed |= BSS_CHANGED_ERP_SLOT;
2362         }
2363
2364         if (params->basic_rates) {
2365                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2366                                          wiphy->bands[sband->band],
2367                                          params->basic_rates,
2368                                          params->basic_rates_len,
2369                                          &sdata->vif.bss_conf.basic_rates);
2370                 changed |= BSS_CHANGED_BASIC_RATES;
2371                 ieee80211_check_rate_mask(sdata);
2372         }
2373
2374         if (params->ap_isolate >= 0) {
2375                 if (params->ap_isolate)
2376                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2377                 else
2378                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2379                 ieee80211_check_fast_rx_iface(sdata);
2380         }
2381
2382         if (params->ht_opmode >= 0) {
2383                 sdata->vif.bss_conf.ht_operation_mode =
2384                         (u16) params->ht_opmode;
2385                 changed |= BSS_CHANGED_HT;
2386         }
2387
2388         if (params->p2p_ctwindow >= 0) {
2389                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2390                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2391                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2392                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2393                 changed |= BSS_CHANGED_P2P_PS;
2394         }
2395
2396         if (params->p2p_opp_ps > 0) {
2397                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2398                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2399                 changed |= BSS_CHANGED_P2P_PS;
2400         } else if (params->p2p_opp_ps == 0) {
2401                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2402                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2403                 changed |= BSS_CHANGED_P2P_PS;
2404         }
2405
2406         ieee80211_bss_info_change_notify(sdata, changed);
2407
2408         return 0;
2409 }
2410
2411 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2412                                     struct net_device *dev,
2413                                     struct ieee80211_txq_params *params)
2414 {
2415         struct ieee80211_local *local = wiphy_priv(wiphy);
2416         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2417         struct ieee80211_tx_queue_params p;
2418
2419         if (!local->ops->conf_tx)
2420                 return -EOPNOTSUPP;
2421
2422         if (local->hw.queues < IEEE80211_NUM_ACS)
2423                 return -EOPNOTSUPP;
2424
2425         memset(&p, 0, sizeof(p));
2426         p.aifs = params->aifs;
2427         p.cw_max = params->cwmax;
2428         p.cw_min = params->cwmin;
2429         p.txop = params->txop;
2430
2431         /*
2432          * Setting tx queue params disables u-apsd because it's only
2433          * called in master mode.
2434          */
2435         p.uapsd = false;
2436
2437         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2438
2439         sdata->tx_conf[params->ac] = p;
2440         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2441                 wiphy_debug(local->hw.wiphy,
2442                             "failed to set TX queue parameters for AC %d\n",
2443                             params->ac);
2444                 return -EINVAL;
2445         }
2446
2447         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2448
2449         return 0;
2450 }
2451
2452 #ifdef CONFIG_PM
2453 static int ieee80211_suspend(struct wiphy *wiphy,
2454                              struct cfg80211_wowlan *wowlan)
2455 {
2456         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2457 }
2458
2459 static int ieee80211_resume(struct wiphy *wiphy)
2460 {
2461         return __ieee80211_resume(wiphy_priv(wiphy));
2462 }
2463 #else
2464 #define ieee80211_suspend NULL
2465 #define ieee80211_resume NULL
2466 #endif
2467
2468 static int ieee80211_scan(struct wiphy *wiphy,
2469                           struct cfg80211_scan_request *req)
2470 {
2471         struct ieee80211_sub_if_data *sdata;
2472
2473         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2474
2475         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2476         case NL80211_IFTYPE_STATION:
2477         case NL80211_IFTYPE_ADHOC:
2478         case NL80211_IFTYPE_MESH_POINT:
2479         case NL80211_IFTYPE_P2P_CLIENT:
2480         case NL80211_IFTYPE_P2P_DEVICE:
2481                 break;
2482         case NL80211_IFTYPE_P2P_GO:
2483                 if (sdata->local->ops->hw_scan)
2484                         break;
2485                 /*
2486                  * FIXME: implement NoA while scanning in software,
2487                  * for now fall through to allow scanning only when
2488                  * beaconing hasn't been configured yet
2489                  */
2490                 fallthrough;
2491         case NL80211_IFTYPE_AP:
2492                 /*
2493                  * If the scan has been forced (and the driver supports
2494                  * forcing), don't care about being beaconing already.
2495                  * This will create problems to the attached stations (e.g. all
2496                  * the  frames sent while scanning on other channel will be
2497                  * lost)
2498                  */
2499                 if (sdata->u.ap.beacon &&
2500                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2501                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2502                         return -EOPNOTSUPP;
2503                 break;
2504         case NL80211_IFTYPE_NAN:
2505         default:
2506                 return -EOPNOTSUPP;
2507         }
2508
2509         return ieee80211_request_scan(sdata, req);
2510 }
2511
2512 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2513 {
2514         ieee80211_scan_cancel(wiphy_priv(wiphy));
2515 }
2516
2517 static int
2518 ieee80211_sched_scan_start(struct wiphy *wiphy,
2519                            struct net_device *dev,
2520                            struct cfg80211_sched_scan_request *req)
2521 {
2522         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2523
2524         if (!sdata->local->ops->sched_scan_start)
2525                 return -EOPNOTSUPP;
2526
2527         return ieee80211_request_sched_scan_start(sdata, req);
2528 }
2529
2530 static int
2531 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2532                           u64 reqid)
2533 {
2534         struct ieee80211_local *local = wiphy_priv(wiphy);
2535
2536         if (!local->ops->sched_scan_stop)
2537                 return -EOPNOTSUPP;
2538
2539         return ieee80211_request_sched_scan_stop(local);
2540 }
2541
2542 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2543                           struct cfg80211_auth_request *req)
2544 {
2545         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2546 }
2547
2548 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2549                            struct cfg80211_assoc_request *req)
2550 {
2551         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2552 }
2553
2554 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2555                             struct cfg80211_deauth_request *req)
2556 {
2557         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2558 }
2559
2560 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2561                               struct cfg80211_disassoc_request *req)
2562 {
2563         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2564 }
2565
2566 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2567                                struct cfg80211_ibss_params *params)
2568 {
2569         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2570 }
2571
2572 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2573 {
2574         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2575 }
2576
2577 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2578                               struct ocb_setup *setup)
2579 {
2580         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2581 }
2582
2583 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2584 {
2585         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2586 }
2587
2588 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2589                                     int rate[NUM_NL80211_BANDS])
2590 {
2591         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2592
2593         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2594                sizeof(int) * NUM_NL80211_BANDS);
2595
2596         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2597
2598         return 0;
2599 }
2600
2601 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2602 {
2603         struct ieee80211_local *local = wiphy_priv(wiphy);
2604         int err;
2605
2606         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2607                 ieee80211_check_fast_xmit_all(local);
2608
2609                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2610
2611                 if (err) {
2612                         ieee80211_check_fast_xmit_all(local);
2613                         return err;
2614                 }
2615         }
2616
2617         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2618             (changed & WIPHY_PARAM_DYN_ACK)) {
2619                 s16 coverage_class;
2620
2621                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2622                                         wiphy->coverage_class : -1;
2623                 err = drv_set_coverage_class(local, coverage_class);
2624
2625                 if (err)
2626                         return err;
2627         }
2628
2629         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2630                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2631
2632                 if (err)
2633                         return err;
2634         }
2635
2636         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2637                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2638                         return -EINVAL;
2639                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2640         }
2641         if (changed & WIPHY_PARAM_RETRY_LONG) {
2642                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2643                         return -EINVAL;
2644                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2645         }
2646         if (changed &
2647             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2648                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2649
2650         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2651                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2652                        WIPHY_PARAM_TXQ_QUANTUM))
2653                 ieee80211_txq_set_params(local);
2654
2655         return 0;
2656 }
2657
2658 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2659                                   struct wireless_dev *wdev,
2660                                   enum nl80211_tx_power_setting type, int mbm)
2661 {
2662         struct ieee80211_local *local = wiphy_priv(wiphy);
2663         struct ieee80211_sub_if_data *sdata;
2664         enum nl80211_tx_power_setting txp_type = type;
2665         bool update_txp_type = false;
2666         bool has_monitor = false;
2667
2668         if (wdev) {
2669                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2670
2671                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2672                         sdata = rtnl_dereference(local->monitor_sdata);
2673                         if (!sdata)
2674                                 return -EOPNOTSUPP;
2675                 }
2676
2677                 switch (type) {
2678                 case NL80211_TX_POWER_AUTOMATIC:
2679                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2680                         txp_type = NL80211_TX_POWER_LIMITED;
2681                         break;
2682                 case NL80211_TX_POWER_LIMITED:
2683                 case NL80211_TX_POWER_FIXED:
2684                         if (mbm < 0 || (mbm % 100))
2685                                 return -EOPNOTSUPP;
2686                         sdata->user_power_level = MBM_TO_DBM(mbm);
2687                         break;
2688                 }
2689
2690                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2691                         update_txp_type = true;
2692                         sdata->vif.bss_conf.txpower_type = txp_type;
2693                 }
2694
2695                 ieee80211_recalc_txpower(sdata, update_txp_type);
2696
2697                 return 0;
2698         }
2699
2700         switch (type) {
2701         case NL80211_TX_POWER_AUTOMATIC:
2702                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2703                 txp_type = NL80211_TX_POWER_LIMITED;
2704                 break;
2705         case NL80211_TX_POWER_LIMITED:
2706         case NL80211_TX_POWER_FIXED:
2707                 if (mbm < 0 || (mbm % 100))
2708                         return -EOPNOTSUPP;
2709                 local->user_power_level = MBM_TO_DBM(mbm);
2710                 break;
2711         }
2712
2713         mutex_lock(&local->iflist_mtx);
2714         list_for_each_entry(sdata, &local->interfaces, list) {
2715                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2716                         has_monitor = true;
2717                         continue;
2718                 }
2719                 sdata->user_power_level = local->user_power_level;
2720                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2721                         update_txp_type = true;
2722                 sdata->vif.bss_conf.txpower_type = txp_type;
2723         }
2724         list_for_each_entry(sdata, &local->interfaces, list) {
2725                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2726                         continue;
2727                 ieee80211_recalc_txpower(sdata, update_txp_type);
2728         }
2729         mutex_unlock(&local->iflist_mtx);
2730
2731         if (has_monitor) {
2732                 sdata = rtnl_dereference(local->monitor_sdata);
2733                 if (sdata) {
2734                         sdata->user_power_level = local->user_power_level;
2735                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2736                                 update_txp_type = true;
2737                         sdata->vif.bss_conf.txpower_type = txp_type;
2738
2739                         ieee80211_recalc_txpower(sdata, update_txp_type);
2740                 }
2741         }
2742
2743         return 0;
2744 }
2745
2746 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2747                                   struct wireless_dev *wdev,
2748                                   int *dbm)
2749 {
2750         struct ieee80211_local *local = wiphy_priv(wiphy);
2751         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2752
2753         if (local->ops->get_txpower)
2754                 return drv_get_txpower(local, sdata, dbm);
2755
2756         if (!local->use_chanctx)
2757                 *dbm = local->hw.conf.power_level;
2758         else
2759                 *dbm = sdata->vif.bss_conf.txpower;
2760
2761         return 0;
2762 }
2763
2764 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2765 {
2766         struct ieee80211_local *local = wiphy_priv(wiphy);
2767
2768         drv_rfkill_poll(local);
2769 }
2770
2771 #ifdef CONFIG_NL80211_TESTMODE
2772 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2773                                   struct wireless_dev *wdev,
2774                                   void *data, int len)
2775 {
2776         struct ieee80211_local *local = wiphy_priv(wiphy);
2777         struct ieee80211_vif *vif = NULL;
2778
2779         if (!local->ops->testmode_cmd)
2780                 return -EOPNOTSUPP;
2781
2782         if (wdev) {
2783                 struct ieee80211_sub_if_data *sdata;
2784
2785                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2786                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2787                         vif = &sdata->vif;
2788         }
2789
2790         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2791 }
2792
2793 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2794                                    struct sk_buff *skb,
2795                                    struct netlink_callback *cb,
2796                                    void *data, int len)
2797 {
2798         struct ieee80211_local *local = wiphy_priv(wiphy);
2799
2800         if (!local->ops->testmode_dump)
2801                 return -EOPNOTSUPP;
2802
2803         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2804 }
2805 #endif
2806
2807 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2808                                  enum ieee80211_smps_mode smps_mode)
2809 {
2810         const u8 *ap;
2811         enum ieee80211_smps_mode old_req;
2812         int err;
2813         struct sta_info *sta;
2814         bool tdls_peer_found = false;
2815
2816         lockdep_assert_held(&sdata->wdev.mtx);
2817
2818         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2819                 return -EINVAL;
2820
2821         old_req = sdata->u.mgd.req_smps;
2822         sdata->u.mgd.req_smps = smps_mode;
2823
2824         if (old_req == smps_mode &&
2825             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2826                 return 0;
2827
2828         /*
2829          * If not associated, or current association is not an HT
2830          * association, there's no need to do anything, just store
2831          * the new value until we associate.
2832          */
2833         if (!sdata->u.mgd.associated ||
2834             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2835                 return 0;
2836
2837         ap = sdata->u.mgd.associated->bssid;
2838
2839         rcu_read_lock();
2840         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2841                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2842                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2843                         continue;
2844
2845                 tdls_peer_found = true;
2846                 break;
2847         }
2848         rcu_read_unlock();
2849
2850         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2851                 if (tdls_peer_found || !sdata->u.mgd.powersave)
2852                         smps_mode = IEEE80211_SMPS_OFF;
2853                 else
2854                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2855         }
2856
2857         /* send SM PS frame to AP */
2858         err = ieee80211_send_smps_action(sdata, smps_mode,
2859                                          ap, ap);
2860         if (err)
2861                 sdata->u.mgd.req_smps = old_req;
2862         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2863                 ieee80211_teardown_tdls_peers(sdata);
2864
2865         return err;
2866 }
2867
2868 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2869                                     bool enabled, int timeout)
2870 {
2871         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2872         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2873
2874         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2875                 return -EOPNOTSUPP;
2876
2877         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2878                 return -EOPNOTSUPP;
2879
2880         if (enabled == sdata->u.mgd.powersave &&
2881             timeout == local->dynamic_ps_forced_timeout)
2882                 return 0;
2883
2884         sdata->u.mgd.powersave = enabled;
2885         local->dynamic_ps_forced_timeout = timeout;
2886
2887         /* no change, but if automatic follow powersave */
2888         sdata_lock(sdata);
2889         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2890         sdata_unlock(sdata);
2891
2892         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2893                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2894
2895         ieee80211_recalc_ps(local);
2896         ieee80211_recalc_ps_vif(sdata);
2897         ieee80211_check_fast_rx_iface(sdata);
2898
2899         return 0;
2900 }
2901
2902 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2903                                          struct net_device *dev,
2904                                          s32 rssi_thold, u32 rssi_hyst)
2905 {
2906         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2907         struct ieee80211_vif *vif = &sdata->vif;
2908         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2909
2910         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2911             rssi_hyst == bss_conf->cqm_rssi_hyst)
2912                 return 0;
2913
2914         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2915             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2916                 return -EOPNOTSUPP;
2917
2918         bss_conf->cqm_rssi_thold = rssi_thold;
2919         bss_conf->cqm_rssi_hyst = rssi_hyst;
2920         bss_conf->cqm_rssi_low = 0;
2921         bss_conf->cqm_rssi_high = 0;
2922         sdata->u.mgd.last_cqm_event_signal = 0;
2923
2924         /* tell the driver upon association, unless already associated */
2925         if (sdata->u.mgd.associated &&
2926             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2927                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2928
2929         return 0;
2930 }
2931
2932 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2933                                                struct net_device *dev,
2934                                                s32 rssi_low, s32 rssi_high)
2935 {
2936         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2937         struct ieee80211_vif *vif = &sdata->vif;
2938         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2939
2940         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2941                 return -EOPNOTSUPP;
2942
2943         bss_conf->cqm_rssi_low = rssi_low;
2944         bss_conf->cqm_rssi_high = rssi_high;
2945         bss_conf->cqm_rssi_thold = 0;
2946         bss_conf->cqm_rssi_hyst = 0;
2947         sdata->u.mgd.last_cqm_event_signal = 0;
2948
2949         /* tell the driver upon association, unless already associated */
2950         if (sdata->u.mgd.associated &&
2951             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2952                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2953
2954         return 0;
2955 }
2956
2957 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2958                                       struct net_device *dev,
2959                                       const u8 *addr,
2960                                       const struct cfg80211_bitrate_mask *mask)
2961 {
2962         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2963         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2964         int i, ret;
2965
2966         if (!ieee80211_sdata_running(sdata))
2967                 return -ENETDOWN;
2968
2969         /*
2970          * If active validate the setting and reject it if it doesn't leave
2971          * at least one basic rate usable, since we really have to be able
2972          * to send something, and if we're an AP we have to be able to do
2973          * so at a basic rate so that all clients can receive it.
2974          */
2975         if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2976             sdata->vif.bss_conf.chandef.chan) {
2977                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2978                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2979
2980                 if (!(mask->control[band].legacy & basic_rates))
2981                         return -EINVAL;
2982         }
2983
2984         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2985                 ret = drv_set_bitrate_mask(local, sdata, mask);
2986                 if (ret)
2987                         return ret;
2988         }
2989
2990         for (i = 0; i < NUM_NL80211_BANDS; i++) {
2991                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2992                 int j;
2993
2994                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2995                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2996                        sizeof(mask->control[i].ht_mcs));
2997                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2998                        mask->control[i].vht_mcs,
2999                        sizeof(mask->control[i].vht_mcs));
3000
3001                 sdata->rc_has_mcs_mask[i] = false;
3002                 sdata->rc_has_vht_mcs_mask[i] = false;
3003                 if (!sband)
3004                         continue;
3005
3006                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3007                         if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3008                                 sdata->rc_has_mcs_mask[i] = true;
3009                                 break;
3010                         }
3011                 }
3012
3013                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3014                         if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3015                                 sdata->rc_has_vht_mcs_mask[i] = true;
3016                                 break;
3017                         }
3018                 }
3019         }
3020
3021         return 0;
3022 }
3023
3024 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3025                                            struct net_device *dev,
3026                                            struct cfg80211_chan_def *chandef,
3027                                            u32 cac_time_ms)
3028 {
3029         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3030         struct ieee80211_local *local = sdata->local;
3031         int err;
3032
3033         mutex_lock(&local->mtx);
3034         if (!list_empty(&local->roc_list) || local->scanning) {
3035                 err = -EBUSY;
3036                 goto out_unlock;
3037         }
3038
3039         /* whatever, but channel contexts should not complain about that one */
3040         sdata->smps_mode = IEEE80211_SMPS_OFF;
3041         sdata->needed_rx_chains = local->rx_chains;
3042
3043         err = ieee80211_vif_use_channel(sdata, chandef,
3044                                         IEEE80211_CHANCTX_SHARED);
3045         if (err)
3046                 goto out_unlock;
3047
3048         ieee80211_queue_delayed_work(&sdata->local->hw,
3049                                      &sdata->dfs_cac_timer_work,
3050                                      msecs_to_jiffies(cac_time_ms));
3051
3052  out_unlock:
3053         mutex_unlock(&local->mtx);
3054         return err;
3055 }
3056
3057 static void ieee80211_end_cac(struct wiphy *wiphy,
3058                               struct net_device *dev)
3059 {
3060         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3061         struct ieee80211_local *local = sdata->local;
3062
3063         mutex_lock(&local->mtx);
3064         list_for_each_entry(sdata, &local->interfaces, list) {
3065                 /* it might be waiting for the local->mtx, but then
3066                  * by the time it gets it, sdata->wdev.cac_started
3067                  * will no longer be true
3068                  */
3069                 cancel_delayed_work(&sdata->dfs_cac_timer_work);
3070
3071                 if (sdata->wdev.cac_started) {
3072                         ieee80211_vif_release_channel(sdata);
3073                         sdata->wdev.cac_started = false;
3074                 }
3075         }
3076         mutex_unlock(&local->mtx);
3077 }
3078
3079 static struct cfg80211_beacon_data *
3080 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3081 {
3082         struct cfg80211_beacon_data *new_beacon;
3083         u8 *pos;
3084         int len;
3085
3086         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3087               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3088               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3089
3090         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3091         if (!new_beacon)
3092                 return NULL;
3093
3094         pos = (u8 *)(new_beacon + 1);
3095         if (beacon->head_len) {
3096                 new_beacon->head_len = beacon->head_len;
3097                 new_beacon->head = pos;
3098                 memcpy(pos, beacon->head, beacon->head_len);
3099                 pos += beacon->head_len;
3100         }
3101         if (beacon->tail_len) {
3102                 new_beacon->tail_len = beacon->tail_len;
3103                 new_beacon->tail = pos;
3104                 memcpy(pos, beacon->tail, beacon->tail_len);
3105                 pos += beacon->tail_len;
3106         }
3107         if (beacon->beacon_ies_len) {
3108                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3109                 new_beacon->beacon_ies = pos;
3110                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3111                 pos += beacon->beacon_ies_len;
3112         }
3113         if (beacon->proberesp_ies_len) {
3114                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3115                 new_beacon->proberesp_ies = pos;
3116                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3117                 pos += beacon->proberesp_ies_len;
3118         }
3119         if (beacon->assocresp_ies_len) {
3120                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3121                 new_beacon->assocresp_ies = pos;
3122                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3123                 pos += beacon->assocresp_ies_len;
3124         }
3125         if (beacon->probe_resp_len) {
3126                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3127                 new_beacon->probe_resp = pos;
3128                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3129                 pos += beacon->probe_resp_len;
3130         }
3131
3132         /* might copy -1, meaning no changes requested */
3133         new_beacon->ftm_responder = beacon->ftm_responder;
3134         if (beacon->lci) {
3135                 new_beacon->lci_len = beacon->lci_len;
3136                 new_beacon->lci = pos;
3137                 memcpy(pos, beacon->lci, beacon->lci_len);
3138                 pos += beacon->lci_len;
3139         }
3140         if (beacon->civicloc) {
3141                 new_beacon->civicloc_len = beacon->civicloc_len;
3142                 new_beacon->civicloc = pos;
3143                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3144                 pos += beacon->civicloc_len;
3145         }
3146
3147         return new_beacon;
3148 }
3149
3150 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3151 {
3152         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3153
3154         ieee80211_queue_work(&sdata->local->hw,
3155                              &sdata->csa_finalize_work);
3156 }
3157 EXPORT_SYMBOL(ieee80211_csa_finish);
3158
3159 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3160                                           u32 *changed)
3161 {
3162         int err;
3163
3164         switch (sdata->vif.type) {
3165         case NL80211_IFTYPE_AP:
3166                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3167                                               NULL, NULL);
3168                 kfree(sdata->u.ap.next_beacon);
3169                 sdata->u.ap.next_beacon = NULL;
3170
3171                 if (err < 0)
3172                         return err;
3173                 *changed |= err;
3174                 break;
3175         case NL80211_IFTYPE_ADHOC:
3176                 err = ieee80211_ibss_finish_csa(sdata);
3177                 if (err < 0)
3178                         return err;
3179                 *changed |= err;
3180                 break;
3181 #ifdef CONFIG_MAC80211_MESH
3182         case NL80211_IFTYPE_MESH_POINT:
3183                 err = ieee80211_mesh_finish_csa(sdata);
3184                 if (err < 0)
3185                         return err;
3186                 *changed |= err;
3187                 break;
3188 #endif
3189         default:
3190                 WARN_ON(1);
3191                 return -EINVAL;
3192         }
3193
3194         return 0;
3195 }
3196
3197 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3198 {
3199         struct ieee80211_local *local = sdata->local;
3200         u32 changed = 0;
3201         int err;
3202
3203         sdata_assert_lock(sdata);
3204         lockdep_assert_held(&local->mtx);
3205         lockdep_assert_held(&local->chanctx_mtx);
3206
3207         /*
3208          * using reservation isn't immediate as it may be deferred until later
3209          * with multi-vif. once reservation is complete it will re-schedule the
3210          * work with no reserved_chanctx so verify chandef to check if it
3211          * completed successfully
3212          */
3213
3214         if (sdata->reserved_chanctx) {
3215                 /*
3216                  * with multi-vif csa driver may call ieee80211_csa_finish()
3217                  * many times while waiting for other interfaces to use their
3218                  * reservations
3219                  */
3220                 if (sdata->reserved_ready)
3221                         return 0;
3222
3223                 return ieee80211_vif_use_reserved_context(sdata);
3224         }
3225
3226         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3227                                         &sdata->csa_chandef))
3228                 return -EINVAL;
3229
3230         sdata->vif.csa_active = false;
3231
3232         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3233         if (err)
3234                 return err;
3235
3236         ieee80211_bss_info_change_notify(sdata, changed);
3237
3238         if (sdata->csa_block_tx) {
3239                 ieee80211_wake_vif_queues(local, sdata,
3240                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3241                 sdata->csa_block_tx = false;
3242         }
3243
3244         err = drv_post_channel_switch(sdata);
3245         if (err)
3246                 return err;
3247
3248         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3249
3250         return 0;
3251 }
3252
3253 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3254 {
3255         if (__ieee80211_csa_finalize(sdata)) {
3256                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3257                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3258                                     GFP_KERNEL);
3259         }
3260 }
3261
3262 void ieee80211_csa_finalize_work(struct work_struct *work)
3263 {
3264         struct ieee80211_sub_if_data *sdata =
3265                 container_of(work, struct ieee80211_sub_if_data,
3266                              csa_finalize_work);
3267         struct ieee80211_local *local = sdata->local;
3268
3269         sdata_lock(sdata);
3270         mutex_lock(&local->mtx);
3271         mutex_lock(&local->chanctx_mtx);
3272
3273         /* AP might have been stopped while waiting for the lock. */
3274         if (!sdata->vif.csa_active)
3275                 goto unlock;
3276
3277         if (!ieee80211_sdata_running(sdata))
3278                 goto unlock;
3279
3280         ieee80211_csa_finalize(sdata);
3281
3282 unlock:
3283         mutex_unlock(&local->chanctx_mtx);
3284         mutex_unlock(&local->mtx);
3285         sdata_unlock(sdata);
3286 }
3287
3288 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3289                                     struct cfg80211_csa_settings *params,
3290                                     u32 *changed)
3291 {
3292         struct ieee80211_csa_settings csa = {};
3293         int err;
3294
3295         switch (sdata->vif.type) {
3296         case NL80211_IFTYPE_AP:
3297                 sdata->u.ap.next_beacon =
3298                         cfg80211_beacon_dup(&params->beacon_after);
3299                 if (!sdata->u.ap.next_beacon)
3300                         return -ENOMEM;
3301
3302                 /*
3303                  * With a count of 0, we don't have to wait for any
3304                  * TBTT before switching, so complete the CSA
3305                  * immediately.  In theory, with a count == 1 we
3306                  * should delay the switch until just before the next
3307                  * TBTT, but that would complicate things so we switch
3308                  * immediately too.  If we would delay the switch
3309                  * until the next TBTT, we would have to set the probe
3310                  * response here.
3311                  *
3312                  * TODO: A channel switch with count <= 1 without
3313                  * sending a CSA action frame is kind of useless,
3314                  * because the clients won't know we're changing
3315                  * channels.  The action frame must be implemented
3316                  * either here or in the userspace.
3317                  */
3318                 if (params->count <= 1)
3319                         break;
3320
3321                 if ((params->n_counter_offsets_beacon >
3322                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3323                     (params->n_counter_offsets_presp >
3324                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
3325                         return -EINVAL;
3326
3327                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3328                 csa.counter_offsets_presp = params->counter_offsets_presp;
3329                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3330                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3331                 csa.count = params->count;
3332
3333                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa, NULL);
3334                 if (err < 0) {
3335                         kfree(sdata->u.ap.next_beacon);
3336                         return err;
3337                 }
3338                 *changed |= err;
3339
3340                 break;
3341         case NL80211_IFTYPE_ADHOC:
3342                 if (!sdata->vif.bss_conf.ibss_joined)
3343                         return -EINVAL;
3344
3345                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3346                         return -EINVAL;
3347
3348                 switch (params->chandef.width) {
3349                 case NL80211_CHAN_WIDTH_40:
3350                         if (cfg80211_get_chandef_type(&params->chandef) !=
3351                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3352                                 return -EINVAL;
3353                         break;
3354                 case NL80211_CHAN_WIDTH_5:
3355                 case NL80211_CHAN_WIDTH_10:
3356                 case NL80211_CHAN_WIDTH_20_NOHT:
3357                 case NL80211_CHAN_WIDTH_20:
3358                         break;
3359                 default:
3360                         return -EINVAL;
3361                 }
3362
3363                 /* changes into another band are not supported */
3364                 if (sdata->u.ibss.chandef.chan->band !=
3365                     params->chandef.chan->band)
3366                         return -EINVAL;
3367
3368                 /* see comments in the NL80211_IFTYPE_AP block */
3369                 if (params->count > 1) {
3370                         err = ieee80211_ibss_csa_beacon(sdata, params);
3371                         if (err < 0)
3372                                 return err;
3373                         *changed |= err;
3374                 }
3375
3376                 ieee80211_send_action_csa(sdata, params);
3377
3378                 break;
3379 #ifdef CONFIG_MAC80211_MESH
3380         case NL80211_IFTYPE_MESH_POINT: {
3381                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3382
3383                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3384                         return -EINVAL;
3385
3386                 /* changes into another band are not supported */
3387                 if (sdata->vif.bss_conf.chandef.chan->band !=
3388                     params->chandef.chan->band)
3389                         return -EINVAL;
3390
3391                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3392                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3393                         if (!ifmsh->pre_value)
3394                                 ifmsh->pre_value = 1;
3395                         else
3396                                 ifmsh->pre_value++;
3397                 }
3398
3399                 /* see comments in the NL80211_IFTYPE_AP block */
3400                 if (params->count > 1) {
3401                         err = ieee80211_mesh_csa_beacon(sdata, params);
3402                         if (err < 0) {
3403                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3404                                 return err;
3405                         }
3406                         *changed |= err;
3407                 }
3408
3409                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3410                         ieee80211_send_action_csa(sdata, params);
3411
3412                 break;
3413                 }
3414 #endif
3415         default:
3416                 return -EOPNOTSUPP;
3417         }
3418
3419         return 0;
3420 }
3421
3422 static void ieee80211_color_change_abort(struct ieee80211_sub_if_data  *sdata)
3423 {
3424         sdata->vif.color_change_active = false;
3425         kfree(sdata->u.ap.next_beacon);
3426         sdata->u.ap.next_beacon = NULL;
3427
3428         cfg80211_color_change_aborted_notify(sdata->dev);
3429 }
3430
3431 static int
3432 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3433                            struct cfg80211_csa_settings *params)
3434 {
3435         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3436         struct ieee80211_local *local = sdata->local;
3437         struct ieee80211_channel_switch ch_switch;
3438         struct ieee80211_chanctx_conf *conf;
3439         struct ieee80211_chanctx *chanctx;
3440         u32 changed = 0;
3441         int err;
3442
3443         sdata_assert_lock(sdata);
3444         lockdep_assert_held(&local->mtx);
3445
3446         if (!list_empty(&local->roc_list) || local->scanning)
3447                 return -EBUSY;
3448
3449         if (sdata->wdev.cac_started)
3450                 return -EBUSY;
3451
3452         if (cfg80211_chandef_identical(&params->chandef,
3453                                        &sdata->vif.bss_conf.chandef))
3454                 return -EINVAL;
3455
3456         /* don't allow another channel switch if one is already active. */
3457         if (sdata->vif.csa_active)
3458                 return -EBUSY;
3459
3460         mutex_lock(&local->chanctx_mtx);
3461         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3462                                          lockdep_is_held(&local->chanctx_mtx));
3463         if (!conf) {
3464                 err = -EBUSY;
3465                 goto out;
3466         }
3467
3468         if (params->chandef.chan->freq_offset) {
3469                 /* this may work, but is untested */
3470                 err = -EOPNOTSUPP;
3471                 goto out;
3472         }
3473
3474         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3475
3476         ch_switch.timestamp = 0;
3477         ch_switch.device_timestamp = 0;
3478         ch_switch.block_tx = params->block_tx;
3479         ch_switch.chandef = params->chandef;
3480         ch_switch.count = params->count;
3481
3482         err = drv_pre_channel_switch(sdata, &ch_switch);
3483         if (err)
3484                 goto out;
3485
3486         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3487                                             chanctx->mode,
3488                                             params->radar_required);
3489         if (err)
3490                 goto out;
3491
3492         /* if reservation is invalid then this will fail */
3493         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3494         if (err) {
3495                 ieee80211_vif_unreserve_chanctx(sdata);
3496                 goto out;
3497         }
3498
3499         /* if there is a color change in progress, abort it */
3500         if (sdata->vif.color_change_active)
3501                 ieee80211_color_change_abort(sdata);
3502
3503         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3504         if (err) {
3505                 ieee80211_vif_unreserve_chanctx(sdata);
3506                 goto out;
3507         }
3508
3509         sdata->csa_chandef = params->chandef;
3510         sdata->csa_block_tx = params->block_tx;
3511         sdata->vif.csa_active = true;
3512
3513         if (sdata->csa_block_tx)
3514                 ieee80211_stop_vif_queues(local, sdata,
3515                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3516
3517         cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3518                                           params->count, params->block_tx);
3519
3520         if (changed) {
3521                 ieee80211_bss_info_change_notify(sdata, changed);
3522                 drv_channel_switch_beacon(sdata, &params->chandef);
3523         } else {
3524                 /* if the beacon didn't change, we can finalize immediately */
3525                 ieee80211_csa_finalize(sdata);
3526         }
3527
3528 out:
3529         mutex_unlock(&local->chanctx_mtx);
3530         return err;
3531 }
3532
3533 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3534                              struct cfg80211_csa_settings *params)
3535 {
3536         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3537         struct ieee80211_local *local = sdata->local;
3538         int err;
3539
3540         mutex_lock(&local->mtx);
3541         err = __ieee80211_channel_switch(wiphy, dev, params);
3542         mutex_unlock(&local->mtx);
3543
3544         return err;
3545 }
3546
3547 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3548 {
3549         lockdep_assert_held(&local->mtx);
3550
3551         local->roc_cookie_counter++;
3552
3553         /* wow, you wrapped 64 bits ... more likely a bug */
3554         if (WARN_ON(local->roc_cookie_counter == 0))
3555                 local->roc_cookie_counter++;
3556
3557         return local->roc_cookie_counter;
3558 }
3559
3560 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3561                              u64 *cookie, gfp_t gfp)
3562 {
3563         unsigned long spin_flags;
3564         struct sk_buff *ack_skb;
3565         int id;
3566
3567         ack_skb = skb_copy(skb, gfp);
3568         if (!ack_skb)
3569                 return -ENOMEM;
3570
3571         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3572         id = idr_alloc(&local->ack_status_frames, ack_skb,
3573                        1, 0x2000, GFP_ATOMIC);
3574         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3575
3576         if (id < 0) {
3577                 kfree_skb(ack_skb);
3578                 return -ENOMEM;
3579         }
3580
3581         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3582
3583         *cookie = ieee80211_mgmt_tx_cookie(local);
3584         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3585
3586         return 0;
3587 }
3588
3589 static void
3590 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3591                                           struct wireless_dev *wdev,
3592                                           struct mgmt_frame_regs *upd)
3593 {
3594         struct ieee80211_local *local = wiphy_priv(wiphy);
3595         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3596         u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3597         u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3598         bool global_change, intf_change;
3599
3600         global_change =
3601                 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3602                 (local->rx_mcast_action_reg !=
3603                  !!(upd->global_mcast_stypes & action_mask));
3604         local->probe_req_reg = upd->global_stypes & preq_mask;
3605         local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3606
3607         intf_change = (sdata->vif.probe_req_reg !=
3608                        !!(upd->interface_stypes & preq_mask)) ||
3609                 (sdata->vif.rx_mcast_action_reg !=
3610                  !!(upd->interface_mcast_stypes & action_mask));
3611         sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3612         sdata->vif.rx_mcast_action_reg =
3613                 upd->interface_mcast_stypes & action_mask;
3614
3615         if (!local->open_count)
3616                 return;
3617
3618         if (intf_change && ieee80211_sdata_running(sdata))
3619                 drv_config_iface_filter(local, sdata,
3620                                         sdata->vif.probe_req_reg ?
3621                                                 FIF_PROBE_REQ : 0,
3622                                         FIF_PROBE_REQ);
3623
3624         if (global_change)
3625                 ieee80211_configure_filter(local);
3626 }
3627
3628 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3629 {
3630         struct ieee80211_local *local = wiphy_priv(wiphy);
3631
3632         if (local->started)
3633                 return -EOPNOTSUPP;
3634
3635         return drv_set_antenna(local, tx_ant, rx_ant);
3636 }
3637
3638 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3639 {
3640         struct ieee80211_local *local = wiphy_priv(wiphy);
3641
3642         return drv_get_antenna(local, tx_ant, rx_ant);
3643 }
3644
3645 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3646                                     struct net_device *dev,
3647                                     struct cfg80211_gtk_rekey_data *data)
3648 {
3649         struct ieee80211_local *local = wiphy_priv(wiphy);
3650         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3651
3652         if (!local->ops->set_rekey_data)
3653                 return -EOPNOTSUPP;
3654
3655         drv_set_rekey_data(local, sdata, data);
3656
3657         return 0;
3658 }
3659
3660 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3661                                   const u8 *peer, u64 *cookie)
3662 {
3663         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3664         struct ieee80211_local *local = sdata->local;
3665         struct ieee80211_qos_hdr *nullfunc;
3666         struct sk_buff *skb;
3667         int size = sizeof(*nullfunc);
3668         __le16 fc;
3669         bool qos;
3670         struct ieee80211_tx_info *info;
3671         struct sta_info *sta;
3672         struct ieee80211_chanctx_conf *chanctx_conf;
3673         enum nl80211_band band;
3674         int ret;
3675
3676         /* the lock is needed to assign the cookie later */
3677         mutex_lock(&local->mtx);
3678
3679         rcu_read_lock();
3680         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3681         if (WARN_ON(!chanctx_conf)) {
3682                 ret = -EINVAL;
3683                 goto unlock;
3684         }
3685         band = chanctx_conf->def.chan->band;
3686         sta = sta_info_get_bss(sdata, peer);
3687         if (sta) {
3688                 qos = sta->sta.wme;
3689         } else {
3690                 ret = -ENOLINK;
3691                 goto unlock;
3692         }
3693
3694         if (qos) {
3695                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3696                                  IEEE80211_STYPE_QOS_NULLFUNC |
3697                                  IEEE80211_FCTL_FROMDS);
3698         } else {
3699                 size -= 2;
3700                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3701                                  IEEE80211_STYPE_NULLFUNC |
3702                                  IEEE80211_FCTL_FROMDS);
3703         }
3704
3705         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3706         if (!skb) {
3707                 ret = -ENOMEM;
3708                 goto unlock;
3709         }
3710
3711         skb->dev = dev;
3712
3713         skb_reserve(skb, local->hw.extra_tx_headroom);
3714
3715         nullfunc = skb_put(skb, size);
3716         nullfunc->frame_control = fc;
3717         nullfunc->duration_id = 0;
3718         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3719         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3720         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3721         nullfunc->seq_ctrl = 0;
3722
3723         info = IEEE80211_SKB_CB(skb);
3724
3725         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3726                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3727         info->band = band;
3728
3729         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3730         skb->priority = 7;
3731         if (qos)
3732                 nullfunc->qos_ctrl = cpu_to_le16(7);
3733
3734         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3735         if (ret) {
3736                 kfree_skb(skb);
3737                 goto unlock;
3738         }
3739
3740         local_bh_disable();
3741         ieee80211_xmit(sdata, sta, skb);
3742         local_bh_enable();
3743
3744         ret = 0;
3745 unlock:
3746         rcu_read_unlock();
3747         mutex_unlock(&local->mtx);
3748
3749         return ret;
3750 }
3751
3752 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3753                                      struct wireless_dev *wdev,
3754                                      struct cfg80211_chan_def *chandef)
3755 {
3756         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3757         struct ieee80211_local *local = wiphy_priv(wiphy);
3758         struct ieee80211_chanctx_conf *chanctx_conf;
3759         int ret = -ENODATA;
3760
3761         rcu_read_lock();
3762         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3763         if (chanctx_conf) {
3764                 *chandef = sdata->vif.bss_conf.chandef;
3765                 ret = 0;
3766         } else if (local->open_count > 0 &&
3767                    local->open_count == local->monitors &&
3768                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3769                 if (local->use_chanctx)
3770                         *chandef = local->monitor_chandef;
3771                 else
3772                         *chandef = local->_oper_chandef;
3773                 ret = 0;
3774         }
3775         rcu_read_unlock();
3776
3777         return ret;
3778 }
3779
3780 #ifdef CONFIG_PM
3781 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3782 {
3783         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3784 }
3785 #endif
3786
3787 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3788                                  struct net_device *dev,
3789                                  struct cfg80211_qos_map *qos_map)
3790 {
3791         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3792         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3793
3794         if (qos_map) {
3795                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3796                 if (!new_qos_map)
3797                         return -ENOMEM;
3798                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3799         } else {
3800                 /* A NULL qos_map was passed to disable QoS mapping */
3801                 new_qos_map = NULL;
3802         }
3803
3804         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3805         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3806         if (old_qos_map)
3807                 kfree_rcu(old_qos_map, rcu_head);
3808
3809         return 0;
3810 }
3811
3812 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3813                                       struct net_device *dev,
3814                                       struct cfg80211_chan_def *chandef)
3815 {
3816         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3817         int ret;
3818         u32 changed = 0;
3819
3820         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3821         if (ret == 0)
3822                 ieee80211_bss_info_change_notify(sdata, changed);
3823
3824         return ret;
3825 }
3826
3827 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3828                                u8 tsid, const u8 *peer, u8 up,
3829                                u16 admitted_time)
3830 {
3831         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3832         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3833         int ac = ieee802_1d_to_ac[up];
3834
3835         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3836                 return -EOPNOTSUPP;
3837
3838         if (!(sdata->wmm_acm & BIT(up)))
3839                 return -EINVAL;
3840
3841         if (ifmgd->tx_tspec[ac].admitted_time)
3842                 return -EBUSY;
3843
3844         if (admitted_time) {
3845                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3846                 ifmgd->tx_tspec[ac].tsid = tsid;
3847                 ifmgd->tx_tspec[ac].up = up;
3848         }
3849
3850         return 0;
3851 }
3852
3853 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3854                                u8 tsid, const u8 *peer)
3855 {
3856         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3857         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3858         struct ieee80211_local *local = wiphy_priv(wiphy);
3859         int ac;
3860
3861         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3862                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3863
3864                 /* skip unused entries */
3865                 if (!tx_tspec->admitted_time)
3866                         continue;
3867
3868                 if (tx_tspec->tsid != tsid)
3869                         continue;
3870
3871                 /* due to this new packets will be reassigned to non-ACM ACs */
3872                 tx_tspec->up = -1;
3873
3874                 /* Make sure that all packets have been sent to avoid to
3875                  * restore the QoS params on packets that are still on the
3876                  * queues.
3877                  */
3878                 synchronize_net();
3879                 ieee80211_flush_queues(local, sdata, false);
3880
3881                 /* restore the normal QoS parameters
3882                  * (unconditionally to avoid races)
3883                  */
3884                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3885                 tx_tspec->downgraded = false;
3886                 ieee80211_sta_handle_tspec_ac_params(sdata);
3887
3888                 /* finally clear all the data */
3889                 memset(tx_tspec, 0, sizeof(*tx_tspec));
3890
3891                 return 0;
3892         }
3893
3894         return -ENOENT;
3895 }
3896
3897 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3898                                    u8 inst_id,
3899                                    enum nl80211_nan_func_term_reason reason,
3900                                    gfp_t gfp)
3901 {
3902         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3903         struct cfg80211_nan_func *func;
3904         u64 cookie;
3905
3906         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3907                 return;
3908
3909         spin_lock_bh(&sdata->u.nan.func_lock);
3910
3911         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3912         if (WARN_ON(!func)) {
3913                 spin_unlock_bh(&sdata->u.nan.func_lock);
3914                 return;
3915         }
3916
3917         cookie = func->cookie;
3918         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3919
3920         spin_unlock_bh(&sdata->u.nan.func_lock);
3921
3922         cfg80211_free_nan_func(func);
3923
3924         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3925                                      reason, cookie, gfp);
3926 }
3927 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3928
3929 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3930                               struct cfg80211_nan_match_params *match,
3931                               gfp_t gfp)
3932 {
3933         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3934         struct cfg80211_nan_func *func;
3935
3936         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3937                 return;
3938
3939         spin_lock_bh(&sdata->u.nan.func_lock);
3940
3941         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3942         if (WARN_ON(!func)) {
3943                 spin_unlock_bh(&sdata->u.nan.func_lock);
3944                 return;
3945         }
3946         match->cookie = func->cookie;
3947
3948         spin_unlock_bh(&sdata->u.nan.func_lock);
3949
3950         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3951 }
3952 EXPORT_SYMBOL(ieee80211_nan_func_match);
3953
3954 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3955                                               struct net_device *dev,
3956                                               const bool enabled)
3957 {
3958         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3959
3960         sdata->u.ap.multicast_to_unicast = enabled;
3961
3962         return 0;
3963 }
3964
3965 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3966                               struct txq_info *txqi)
3967 {
3968         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3969                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3970                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3971         }
3972
3973         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3974                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3975                 txqstats->backlog_packets = txqi->tin.backlog_packets;
3976         }
3977
3978         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3979                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3980                 txqstats->flows = txqi->tin.flows;
3981         }
3982
3983         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3984                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3985                 txqstats->drops = txqi->cstats.drop_count;
3986         }
3987
3988         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3989                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3990                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3991         }
3992
3993         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3994                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3995                 txqstats->overlimit = txqi->tin.overlimit;
3996         }
3997
3998         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3999                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4000                 txqstats->collisions = txqi->tin.collisions;
4001         }
4002
4003         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4004                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4005                 txqstats->tx_bytes = txqi->tin.tx_bytes;
4006         }
4007
4008         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4009                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4010                 txqstats->tx_packets = txqi->tin.tx_packets;
4011         }
4012 }
4013
4014 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4015                                    struct wireless_dev *wdev,
4016                                    struct cfg80211_txq_stats *txqstats)
4017 {
4018         struct ieee80211_local *local = wiphy_priv(wiphy);
4019         struct ieee80211_sub_if_data *sdata;
4020         int ret = 0;
4021
4022         if (!local->ops->wake_tx_queue)
4023                 return 1;
4024
4025         spin_lock_bh(&local->fq.lock);
4026         rcu_read_lock();
4027
4028         if (wdev) {
4029                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4030                 if (!sdata->vif.txq) {
4031                         ret = 1;
4032                         goto out;
4033                 }
4034                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4035         } else {
4036                 /* phy stats */
4037                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4038                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4039                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4040                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4041                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
4042                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4043                 txqstats->backlog_packets = local->fq.backlog;
4044                 txqstats->backlog_bytes = local->fq.memory_usage;
4045                 txqstats->overlimit = local->fq.overlimit;
4046                 txqstats->overmemory = local->fq.overmemory;
4047                 txqstats->collisions = local->fq.collisions;
4048                 txqstats->max_flows = local->fq.flows_cnt;
4049         }
4050
4051 out:
4052         rcu_read_unlock();
4053         spin_unlock_bh(&local->fq.lock);
4054
4055         return ret;
4056 }
4057
4058 static int
4059 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4060                                   struct net_device *dev,
4061                                   struct cfg80211_ftm_responder_stats *ftm_stats)
4062 {
4063         struct ieee80211_local *local = wiphy_priv(wiphy);
4064         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4065
4066         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4067 }
4068
4069 static int
4070 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4071                      struct cfg80211_pmsr_request *request)
4072 {
4073         struct ieee80211_local *local = wiphy_priv(wiphy);
4074         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4075
4076         return drv_start_pmsr(local, sdata, request);
4077 }
4078
4079 static void
4080 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4081                      struct cfg80211_pmsr_request *request)
4082 {
4083         struct ieee80211_local *local = wiphy_priv(wiphy);
4084         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4085
4086         return drv_abort_pmsr(local, sdata, request);
4087 }
4088
4089 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4090                                     struct net_device *dev,
4091                                     struct cfg80211_tid_config *tid_conf)
4092 {
4093         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4094         struct sta_info *sta;
4095         int ret;
4096
4097         if (!sdata->local->ops->set_tid_config)
4098                 return -EOPNOTSUPP;
4099
4100         if (!tid_conf->peer)
4101                 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4102
4103         mutex_lock(&sdata->local->sta_mtx);
4104         sta = sta_info_get_bss(sdata, tid_conf->peer);
4105         if (!sta) {
4106                 mutex_unlock(&sdata->local->sta_mtx);
4107                 return -ENOENT;
4108         }
4109
4110         ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4111         mutex_unlock(&sdata->local->sta_mtx);
4112
4113         return ret;
4114 }
4115
4116 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4117                                       struct net_device *dev,
4118                                       const u8 *peer, u8 tids)
4119 {
4120         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4121         struct sta_info *sta;
4122         int ret;
4123
4124         if (!sdata->local->ops->reset_tid_config)
4125                 return -EOPNOTSUPP;
4126
4127         if (!peer)
4128                 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4129
4130         mutex_lock(&sdata->local->sta_mtx);
4131         sta = sta_info_get_bss(sdata, peer);
4132         if (!sta) {
4133                 mutex_unlock(&sdata->local->sta_mtx);
4134                 return -ENOENT;
4135         }
4136
4137         ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4138         mutex_unlock(&sdata->local->sta_mtx);
4139
4140         return ret;
4141 }
4142
4143 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4144                                    struct cfg80211_sar_specs *sar)
4145 {
4146         struct ieee80211_local *local = wiphy_priv(wiphy);
4147
4148         if (!local->ops->set_sar_specs)
4149                 return -EOPNOTSUPP;
4150
4151         return local->ops->set_sar_specs(&local->hw, sar);
4152 }
4153
4154 static int
4155 ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4156                                         u32 *changed)
4157 {
4158         switch (sdata->vif.type) {
4159         case NL80211_IFTYPE_AP: {
4160                 int ret;
4161
4162                 ret = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
4163                                               NULL, NULL);
4164                 kfree(sdata->u.ap.next_beacon);
4165                 sdata->u.ap.next_beacon = NULL;
4166
4167                 if (ret < 0)
4168                         return ret;
4169
4170                 *changed |= ret;
4171                 break;
4172         }
4173         default:
4174                 WARN_ON_ONCE(1);
4175                 return -EINVAL;
4176         }
4177
4178         return 0;
4179 }
4180
4181 static int
4182 ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4183                                   struct cfg80211_color_change_settings *params,
4184                                   u32 *changed)
4185 {
4186         struct ieee80211_color_change_settings color_change = {};
4187         int err;
4188
4189         switch (sdata->vif.type) {
4190         case NL80211_IFTYPE_AP:
4191                 sdata->u.ap.next_beacon =
4192                         cfg80211_beacon_dup(&params->beacon_next);
4193                 if (!sdata->u.ap.next_beacon)
4194                         return -ENOMEM;
4195
4196                 if (params->count <= 1)
4197                         break;
4198
4199                 color_change.counter_offset_beacon =
4200                         params->counter_offset_beacon;
4201                 color_change.counter_offset_presp =
4202                         params->counter_offset_presp;
4203                 color_change.count = params->count;
4204
4205                 err = ieee80211_assign_beacon(sdata, &params->beacon_color_change,
4206                                               NULL, &color_change);
4207                 if (err < 0) {
4208                         kfree(sdata->u.ap.next_beacon);
4209                         return err;
4210                 }
4211                 *changed |= err;
4212                 break;
4213         default:
4214                 return -EOPNOTSUPP;
4215         }
4216
4217         return 0;
4218 }
4219
4220 static void
4221 ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
4222                                          u8 color, int enable, u32 changed)
4223 {
4224         sdata->vif.bss_conf.he_bss_color.color = color;
4225         sdata->vif.bss_conf.he_bss_color.enabled = enable;
4226         changed |= BSS_CHANGED_HE_BSS_COLOR;
4227
4228         ieee80211_bss_info_change_notify(sdata, changed);
4229 }
4230
4231 static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
4232 {
4233         struct ieee80211_local *local = sdata->local;
4234         u32 changed = 0;
4235         int err;
4236
4237         sdata_assert_lock(sdata);
4238         lockdep_assert_held(&local->mtx);
4239
4240         sdata->vif.color_change_active = false;
4241
4242         err = ieee80211_set_after_color_change_beacon(sdata, &changed);
4243         if (err) {
4244                 cfg80211_color_change_aborted_notify(sdata->dev);
4245                 return err;
4246         }
4247
4248         ieee80211_color_change_bss_config_notify(sdata,
4249                                                  sdata->vif.color_change_color,
4250                                                  1, changed);
4251         cfg80211_color_change_notify(sdata->dev);
4252
4253         return 0;
4254 }
4255
4256 void ieee80211_color_change_finalize_work(struct work_struct *work)
4257 {
4258         struct ieee80211_sub_if_data *sdata =
4259                 container_of(work, struct ieee80211_sub_if_data,
4260                              color_change_finalize_work);
4261         struct ieee80211_local *local = sdata->local;
4262
4263         sdata_lock(sdata);
4264         mutex_lock(&local->mtx);
4265
4266         /* AP might have been stopped while waiting for the lock. */
4267         if (!sdata->vif.color_change_active)
4268                 goto unlock;
4269
4270         if (!ieee80211_sdata_running(sdata))
4271                 goto unlock;
4272
4273         ieee80211_color_change_finalize(sdata);
4274
4275 unlock:
4276         mutex_unlock(&local->mtx);
4277         sdata_unlock(sdata);
4278 }
4279
4280 void ieee80211_color_change_finish(struct ieee80211_vif *vif)
4281 {
4282         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4283
4284         ieee80211_queue_work(&sdata->local->hw,
4285                              &sdata->color_change_finalize_work);
4286 }
4287 EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4288
4289 void
4290 ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4291                                        u64 color_bitmap)
4292 {
4293         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4294
4295         if (sdata->vif.color_change_active || sdata->vif.csa_active)
4296                 return;
4297
4298         cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap);
4299 }
4300 EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify);
4301
4302 static int
4303 ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4304                        struct cfg80211_color_change_settings *params)
4305 {
4306         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4307         struct ieee80211_local *local = sdata->local;
4308         u32 changed = 0;
4309         int err;
4310
4311         sdata_assert_lock(sdata);
4312
4313         mutex_lock(&local->mtx);
4314
4315         /* don't allow another color change if one is already active or if csa
4316          * is active
4317          */
4318         if (sdata->vif.color_change_active || sdata->vif.csa_active) {
4319                 err = -EBUSY;
4320                 goto out;
4321         }
4322
4323         err = ieee80211_set_color_change_beacon(sdata, params, &changed);
4324         if (err)
4325                 goto out;
4326
4327         sdata->vif.color_change_active = true;
4328         sdata->vif.color_change_color = params->color;
4329
4330         cfg80211_color_change_started_notify(sdata->dev, params->count);
4331
4332         if (changed)
4333                 ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed);
4334         else
4335                 /* if the beacon didn't change, we can finalize immediately */
4336                 ieee80211_color_change_finalize(sdata);
4337
4338 out:
4339         mutex_unlock(&local->mtx);
4340
4341         return err;
4342 }
4343
4344 const struct cfg80211_ops mac80211_config_ops = {
4345         .add_virtual_intf = ieee80211_add_iface,
4346         .del_virtual_intf = ieee80211_del_iface,
4347         .change_virtual_intf = ieee80211_change_iface,
4348         .start_p2p_device = ieee80211_start_p2p_device,
4349         .stop_p2p_device = ieee80211_stop_p2p_device,
4350         .add_key = ieee80211_add_key,
4351         .del_key = ieee80211_del_key,
4352         .get_key = ieee80211_get_key,
4353         .set_default_key = ieee80211_config_default_key,
4354         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4355         .set_default_beacon_key = ieee80211_config_default_beacon_key,
4356         .start_ap = ieee80211_start_ap,
4357         .change_beacon = ieee80211_change_beacon,
4358         .stop_ap = ieee80211_stop_ap,
4359         .add_station = ieee80211_add_station,
4360         .del_station = ieee80211_del_station,
4361         .change_station = ieee80211_change_station,
4362         .get_station = ieee80211_get_station,
4363         .dump_station = ieee80211_dump_station,
4364         .dump_survey = ieee80211_dump_survey,
4365 #ifdef CONFIG_MAC80211_MESH
4366         .add_mpath = ieee80211_add_mpath,
4367         .del_mpath = ieee80211_del_mpath,
4368         .change_mpath = ieee80211_change_mpath,
4369         .get_mpath = ieee80211_get_mpath,
4370         .dump_mpath = ieee80211_dump_mpath,
4371         .get_mpp = ieee80211_get_mpp,
4372         .dump_mpp = ieee80211_dump_mpp,
4373         .update_mesh_config = ieee80211_update_mesh_config,
4374         .get_mesh_config = ieee80211_get_mesh_config,
4375         .join_mesh = ieee80211_join_mesh,
4376         .leave_mesh = ieee80211_leave_mesh,
4377 #endif
4378         .join_ocb = ieee80211_join_ocb,
4379         .leave_ocb = ieee80211_leave_ocb,
4380         .change_bss = ieee80211_change_bss,
4381         .set_txq_params = ieee80211_set_txq_params,
4382         .set_monitor_channel = ieee80211_set_monitor_channel,
4383         .suspend = ieee80211_suspend,
4384         .resume = ieee80211_resume,
4385         .scan = ieee80211_scan,
4386         .abort_scan = ieee80211_abort_scan,
4387         .sched_scan_start = ieee80211_sched_scan_start,
4388         .sched_scan_stop = ieee80211_sched_scan_stop,
4389         .auth = ieee80211_auth,
4390         .assoc = ieee80211_assoc,
4391         .deauth = ieee80211_deauth,
4392         .disassoc = ieee80211_disassoc,
4393         .join_ibss = ieee80211_join_ibss,
4394         .leave_ibss = ieee80211_leave_ibss,
4395         .set_mcast_rate = ieee80211_set_mcast_rate,
4396         .set_wiphy_params = ieee80211_set_wiphy_params,
4397         .set_tx_power = ieee80211_set_tx_power,
4398         .get_tx_power = ieee80211_get_tx_power,
4399         .rfkill_poll = ieee80211_rfkill_poll,
4400         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4401         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4402         .set_power_mgmt = ieee80211_set_power_mgmt,
4403         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4404         .remain_on_channel = ieee80211_remain_on_channel,
4405         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4406         .mgmt_tx = ieee80211_mgmt_tx,
4407         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4408         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4409         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4410         .update_mgmt_frame_registrations =
4411                 ieee80211_update_mgmt_frame_registrations,
4412         .set_antenna = ieee80211_set_antenna,
4413         .get_antenna = ieee80211_get_antenna,
4414         .set_rekey_data = ieee80211_set_rekey_data,
4415         .tdls_oper = ieee80211_tdls_oper,
4416         .tdls_mgmt = ieee80211_tdls_mgmt,
4417         .tdls_channel_switch = ieee80211_tdls_channel_switch,
4418         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4419         .probe_client = ieee80211_probe_client,
4420         .set_noack_map = ieee80211_set_noack_map,
4421 #ifdef CONFIG_PM
4422         .set_wakeup = ieee80211_set_wakeup,
4423 #endif
4424         .get_channel = ieee80211_cfg_get_channel,
4425         .start_radar_detection = ieee80211_start_radar_detection,
4426         .end_cac = ieee80211_end_cac,
4427         .channel_switch = ieee80211_channel_switch,
4428         .set_qos_map = ieee80211_set_qos_map,
4429         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4430         .add_tx_ts = ieee80211_add_tx_ts,
4431         .del_tx_ts = ieee80211_del_tx_ts,
4432         .start_nan = ieee80211_start_nan,
4433         .stop_nan = ieee80211_stop_nan,
4434         .nan_change_conf = ieee80211_nan_change_conf,
4435         .add_nan_func = ieee80211_add_nan_func,
4436         .del_nan_func = ieee80211_del_nan_func,
4437         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4438         .tx_control_port = ieee80211_tx_control_port,
4439         .get_txq_stats = ieee80211_get_txq_stats,
4440         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4441         .start_pmsr = ieee80211_start_pmsr,
4442         .abort_pmsr = ieee80211_abort_pmsr,
4443         .probe_mesh_link = ieee80211_probe_mesh_link,
4444         .set_tid_config = ieee80211_set_tid_config,
4445         .reset_tid_config = ieee80211_reset_tid_config,
4446         .set_sar_specs = ieee80211_set_sar_specs,
4447         .color_change = ieee80211_color_change,
4448 };