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         int ret;
 156
 157         ret = ieee80211_if_change_type(sdata, type);
 158         if (ret)
 159                 return ret;
 160
 161         if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
 162                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
 163                 ieee80211_check_fast_rx_iface(sdata);
 164         } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
 165                 sdata->u.mgd.use_4addr = params->use_4addr;
 166         }
 167
 168         if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
 169                 ret = ieee80211_set_mon_options(sdata, params);
 170                 if (ret)
 171                         return ret;
 172         }
 173
 174         return 0;
 175 }
 176
 177 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 178                                       struct wireless_dev *wdev)
 179 {
 180         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 181         int ret;
 182
 183         mutex_lock(&sdata->local->chanctx_mtx);
 184         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 185         mutex_unlock(&sdata->local->chanctx_mtx);
 186         if (ret < 0)
 187                 return ret;
 188
 189         return ieee80211_do_open(wdev, true);
 190 }
 191
 192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 193                                       struct wireless_dev *wdev)
 194 {
 195         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 196 }
 197
 198 static int ieee80211_start_nan(struct wiphy *wiphy,
 199                                struct wireless_dev *wdev,
 200                                struct cfg80211_nan_conf *conf)
 201 {
 202         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 203         int ret;
 204
 205         mutex_lock(&sdata->local->chanctx_mtx);
 206         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 207         mutex_unlock(&sdata->local->chanctx_mtx);
 208         if (ret < 0)
 209                 return ret;
 210
 211         ret = ieee80211_do_open(wdev, true);
 212         if (ret)
 213                 return ret;
 214
 215         ret = drv_start_nan(sdata->local, sdata, conf);
 216         if (ret)
 217                 ieee80211_sdata_stop(sdata);
 218
 219         sdata->u.nan.conf = *conf;
 220
 221         return ret;
 222 }
 223
 224 static void ieee80211_stop_nan(struct wiphy *wiphy,
 225                                struct wireless_dev *wdev)
 226 {
 227         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 228
 229         drv_stop_nan(sdata->local, sdata);
 230         ieee80211_sdata_stop(sdata);
 231 }
 232
 233 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
 234                                      struct wireless_dev *wdev,
 235                                      struct cfg80211_nan_conf *conf,
 236                                      u32 changes)
 237 {
 238         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 239         struct cfg80211_nan_conf new_conf;
 240         int ret = 0;
 241
 242         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 243                 return -EOPNOTSUPP;
 244
 245         if (!ieee80211_sdata_running(sdata))
 246                 return -ENETDOWN;
 247
 248         new_conf = sdata->u.nan.conf;
 249
 250         if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
 251                 new_conf.master_pref = conf->master_pref;
 252
 253         if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
 254                 new_conf.bands = conf->bands;
 255
 256         ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
 257         if (!ret)
 258                 sdata->u.nan.conf = new_conf;
 259
 260         return ret;
 261 }
 262
 263 static int ieee80211_add_nan_func(struct wiphy *wiphy,
 264                                   struct wireless_dev *wdev,
 265                                   struct cfg80211_nan_func *nan_func)
 266 {
 267         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 268         int ret;
 269
 270         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 271                 return -EOPNOTSUPP;
 272
 273         if (!ieee80211_sdata_running(sdata))
 274                 return -ENETDOWN;
 275
 276         spin_lock_bh(&sdata->u.nan.func_lock);
 277
 278         ret = idr_alloc(&sdata->u.nan.function_inst_ids,
 279                         nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
 280                         GFP_ATOMIC);
 281         spin_unlock_bh(&sdata->u.nan.func_lock);
 282
 283         if (ret < 0)
 284                 return ret;
 285
 286         nan_func->instance_id = ret;
 287
 288         WARN_ON(nan_func->instance_id == 0);
 289
 290         ret = drv_add_nan_func(sdata->local, sdata, nan_func);
 291         if (ret) {
 292                 spin_lock_bh(&sdata->u.nan.func_lock);
 293                 idr_remove(&sdata->u.nan.function_inst_ids,
 294                            nan_func->instance_id);
 295                 spin_unlock_bh(&sdata->u.nan.func_lock);
 296         }
 297
 298         return ret;
 299 }
 300
 301 static struct cfg80211_nan_func *
 302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
 303                                   u64 cookie)
 304 {
 305         struct cfg80211_nan_func *func;
 306         int id;
 307
 308         lockdep_assert_held(&sdata->u.nan.func_lock);
 309
 310         idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
 311                 if (func->cookie == cookie)
 312                         return func;
 313         }
 314
 315         return NULL;
 316 }
 317
 318 static void ieee80211_del_nan_func(struct wiphy *wiphy,
 319                                   struct wireless_dev *wdev, u64 cookie)
 320 {
 321         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 322         struct cfg80211_nan_func *func;
 323         u8 instance_id = 0;
 324
 325         if (sdata->vif.type != NL80211_IFTYPE_NAN ||
 326             !ieee80211_sdata_running(sdata))
 327                 return;
 328
 329         spin_lock_bh(&sdata->u.nan.func_lock);
 330
 331         func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
 332         if (func)
 333                 instance_id = func->instance_id;
 334
 335         spin_unlock_bh(&sdata->u.nan.func_lock);
 336
 337         if (instance_id)
 338                 drv_del_nan_func(sdata->local, sdata, instance_id);
 339 }
 340
 341 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 342                                   struct net_device *dev,
 343                                   u16 noack_map)
 344 {
 345         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 346
 347         sdata->noack_map = noack_map;
 348
 349         ieee80211_check_fast_xmit_iface(sdata);
 350
 351         return 0;
 352 }
 353
 354 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
 355                             const u8 *mac_addr, u8 key_idx)
 356 {
 357         struct ieee80211_local *local = sdata->local;
 358         struct ieee80211_key *key;
 359         struct sta_info *sta;
 360         int ret = -EINVAL;
 361
 362         if (!wiphy_ext_feature_isset(local->hw.wiphy,
 363                                      NL80211_EXT_FEATURE_EXT_KEY_ID))
 364                 return -EINVAL;
 365
 366         sta = sta_info_get_bss(sdata, mac_addr);
 367
 368         if (!sta)
 369                 return -EINVAL;
 370
 371         if (sta->ptk_idx == key_idx)
 372                 return 0;
 373
 374         mutex_lock(&local->key_mtx);
 375         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 376
 377         if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
 378                 ret = ieee80211_set_tx_key(key);
 379
 380         mutex_unlock(&local->key_mtx);
 381         return ret;
 382 }
 383
 384 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 385                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 386                              struct key_params *params)
 387 {
 388         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 389         struct ieee80211_local *local = sdata->local;
 390         struct sta_info *sta = NULL;
 391         const struct ieee80211_cipher_scheme *cs = NULL;
 392         struct ieee80211_key *key;
 393         int err;
 394
 395         if (!ieee80211_sdata_running(sdata))
 396                 return -ENETDOWN;
 397
 398         if (pairwise && params->mode == NL80211_KEY_SET_TX)
 399                 return ieee80211_set_tx(sdata, mac_addr, key_idx);
 400
 401         /* reject WEP and TKIP keys if WEP failed to initialize */
 402         switch (params->cipher) {
 403         case WLAN_CIPHER_SUITE_WEP40:
 404         case WLAN_CIPHER_SUITE_TKIP:
 405         case WLAN_CIPHER_SUITE_WEP104:
 406                 if (WARN_ON_ONCE(fips_enabled))
 407                         return -EINVAL;
 408         case WLAN_CIPHER_SUITE_CCMP:
 409         case WLAN_CIPHER_SUITE_CCMP_256:
 410         case WLAN_CIPHER_SUITE_AES_CMAC:
 411         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 412         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 413         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 414         case WLAN_CIPHER_SUITE_GCMP:
 415         case WLAN_CIPHER_SUITE_GCMP_256:
 416                 break;
 417         default:
 418                 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
 419                 break;
 420         }
 421
 422         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 423                                   params->key, params->seq_len, params->seq,
 424                                   cs);
 425         if (IS_ERR(key))
 426                 return PTR_ERR(key);
 427
 428         if (pairwise)
 429                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 430
 431         if (params->mode == NL80211_KEY_NO_TX)
 432                 key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
 433
 434         mutex_lock(&local->sta_mtx);
 435
 436         if (mac_addr) {
 437                 sta = sta_info_get_bss(sdata, mac_addr);
 438                 /*
 439                  * The ASSOC test makes sure the driver is ready to
 440                  * receive the key. When wpa_supplicant has roamed
 441                  * using FT, it attempts to set the key before
 442                  * association has completed, this rejects that attempt
 443                  * so it will set the key again after association.
 444                  *
 445                  * TODO: accept the key if we have a station entry and
 446                  *       add it to the device after the station.
 447                  */
 448                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 449                         ieee80211_key_free_unused(key);
 450                         err = -ENOENT;
 451                         goto out_unlock;
 452                 }
 453         }
 454
 455         switch (sdata->vif.type) {
 456         case NL80211_IFTYPE_STATION:
 457                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 458                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 459                 break;
 460         case NL80211_IFTYPE_AP:
 461         case NL80211_IFTYPE_AP_VLAN:
 462                 /* Keys without a station are used for TX only */
 463                 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
 464                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 465                 break;
 466         case NL80211_IFTYPE_ADHOC:
 467                 /* no MFP (yet) */
 468                 break;
 469         case NL80211_IFTYPE_MESH_POINT:
 470 #ifdef CONFIG_MAC80211_MESH
 471                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 472                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 473                 break;
 474 #endif
 475         case NL80211_IFTYPE_WDS:
 476         case NL80211_IFTYPE_MONITOR:
 477         case NL80211_IFTYPE_P2P_DEVICE:
 478         case NL80211_IFTYPE_NAN:
 479         case NL80211_IFTYPE_UNSPECIFIED:
 480         case NUM_NL80211_IFTYPES:
 481         case NL80211_IFTYPE_P2P_CLIENT:
 482         case NL80211_IFTYPE_P2P_GO:
 483         case NL80211_IFTYPE_OCB:
 484                 /* shouldn't happen */
 485                 WARN_ON_ONCE(1);
 486                 break;
 487         }
 488
 489         if (sta)
 490                 sta->cipher_scheme = cs;
 491
 492         err = ieee80211_key_link(key, sdata, sta);
 493
 494  out_unlock:
 495         mutex_unlock(&local->sta_mtx);
 496
 497         return err;
 498 }
 499
 500 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 501                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 502 {
 503         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 504         struct ieee80211_local *local = sdata->local;
 505         struct sta_info *sta;
 506         struct ieee80211_key *key = NULL;
 507         int ret;
 508
 509         mutex_lock(&local->sta_mtx);
 510         mutex_lock(&local->key_mtx);
 511
 512         if (mac_addr) {
 513                 ret = -ENOENT;
 514
 515                 sta = sta_info_get_bss(sdata, mac_addr);
 516                 if (!sta)
 517                         goto out_unlock;
 518
 519                 if (pairwise)
 520                         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 521                 else
 522                         key = key_mtx_dereference(local, sta->gtk[key_idx]);
 523         } else
 524                 key = key_mtx_dereference(local, sdata->keys[key_idx]);
 525
 526         if (!key) {
 527                 ret = -ENOENT;
 528                 goto out_unlock;
 529         }
 530
 531         ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
 532
 533         ret = 0;
 534  out_unlock:
 535         mutex_unlock(&local->key_mtx);
 536         mutex_unlock(&local->sta_mtx);
 537
 538         return ret;
 539 }
 540
 541 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 542                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 543                              void *cookie,
 544                              void (*callback)(void *cookie,
 545                                               struct key_params *params))
 546 {
 547         struct ieee80211_sub_if_data *sdata;
 548         struct sta_info *sta = NULL;
 549         u8 seq[6] = {0};
 550         struct key_params params;
 551         struct ieee80211_key *key = NULL;
 552         u64 pn64;
 553         u32 iv32;
 554         u16 iv16;
 555         int err = -ENOENT;
 556         struct ieee80211_key_seq kseq = {};
 557
 558         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 559
 560         rcu_read_lock();
 561
 562         if (mac_addr) {
 563                 sta = sta_info_get_bss(sdata, mac_addr);
 564                 if (!sta)
 565                         goto out;
 566
 567                 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 568                         key = rcu_dereference(sta->ptk[key_idx]);
 569                 else if (!pairwise &&
 570                          key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS +
 571                          NUM_DEFAULT_BEACON_KEYS)
 572                         key = rcu_dereference(sta->gtk[key_idx]);
 573         } else
 574                 key = rcu_dereference(sdata->keys[key_idx]);
 575
 576         if (!key)
 577                 goto out;
 578
 579         memset(&params, 0, sizeof(params));
 580
 581         params.cipher = key->conf.cipher;
 582
 583         switch (key->conf.cipher) {
 584         case WLAN_CIPHER_SUITE_TKIP:
 585                 pn64 = atomic64_read(&key->conf.tx_pn);
 586                 iv32 = TKIP_PN_TO_IV32(pn64);
 587                 iv16 = TKIP_PN_TO_IV16(pn64);
 588
 589                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 590                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 591                         drv_get_key_seq(sdata->local, key, &kseq);
 592                         iv32 = kseq.tkip.iv32;
 593                         iv16 = kseq.tkip.iv16;
 594                 }
 595
 596                 seq[0] = iv16 & 0xff;
 597                 seq[1] = (iv16 >> 8) & 0xff;
 598                 seq[2] = iv32 & 0xff;
 599                 seq[3] = (iv32 >> 8) & 0xff;
 600                 seq[4] = (iv32 >> 16) & 0xff;
 601                 seq[5] = (iv32 >> 24) & 0xff;
 602                 params.seq = seq;
 603                 params.seq_len = 6;
 604                 break;
 605         case WLAN_CIPHER_SUITE_CCMP:
 606         case WLAN_CIPHER_SUITE_CCMP_256:
 607         case WLAN_CIPHER_SUITE_AES_CMAC:
 608         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 609                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 610                              offsetof(typeof(kseq), aes_cmac));
 611                 fallthrough;
 612         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 613         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 614                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 615                              offsetof(typeof(kseq), aes_gmac));
 616                 fallthrough;
 617         case WLAN_CIPHER_SUITE_GCMP:
 618         case WLAN_CIPHER_SUITE_GCMP_256:
 619                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 620                              offsetof(typeof(kseq), gcmp));
 621
 622                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 623                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 624                         drv_get_key_seq(sdata->local, key, &kseq);
 625                         memcpy(seq, kseq.ccmp.pn, 6);
 626                 } else {
 627                         pn64 = atomic64_read(&key->conf.tx_pn);
 628                         seq[0] = pn64;
 629                         seq[1] = pn64 >> 8;
 630                         seq[2] = pn64 >> 16;
 631                         seq[3] = pn64 >> 24;
 632                         seq[4] = pn64 >> 32;
 633                         seq[5] = pn64 >> 40;
 634                 }
 635                 params.seq = seq;
 636                 params.seq_len = 6;
 637                 break;
 638         default:
 639                 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
 640                         break;
 641                 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
 642                         break;
 643                 drv_get_key_seq(sdata->local, key, &kseq);
 644                 params.seq = kseq.hw.seq;
 645                 params.seq_len = kseq.hw.seq_len;
 646                 break;
 647         }
 648
 649         params.key = key->conf.key;
 650         params.key_len = key->conf.keylen;
 651
 652         callback(cookie, &params);
 653         err = 0;
 654
 655  out:
 656         rcu_read_unlock();
 657         return err;
 658 }
 659
 660 static int ieee80211_config_default_key(struct wiphy *wiphy,
 661                                         struct net_device *dev,
 662                                         u8 key_idx, bool uni,
 663                                         bool multi)
 664 {
 665         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 666
 667         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 668
 669         return 0;
 670 }
 671
 672 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 673                                              struct net_device *dev,
 674                                              u8 key_idx)
 675 {
 676         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 677
 678         ieee80211_set_default_mgmt_key(sdata, key_idx);
 679
 680         return 0;
 681 }
 682
 683 static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
 684                                                struct net_device *dev,
 685                                                u8 key_idx)
 686 {
 687         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 688
 689         ieee80211_set_default_beacon_key(sdata, key_idx);
 690
 691         return 0;
 692 }
 693
 694 void sta_set_rate_info_tx(struct sta_info *sta,
 695                           const struct ieee80211_tx_rate *rate,
 696                           struct rate_info *rinfo)
 697 {
 698         rinfo->flags = 0;
 699         if (rate->flags & IEEE80211_TX_RC_MCS) {
 700                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 701                 rinfo->mcs = rate->idx;
 702         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 703                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 704                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 705                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 706         } else {
 707                 struct ieee80211_supported_band *sband;
 708                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 709                 u16 brate;
 710
 711                 sband = ieee80211_get_sband(sta->sdata);
 712                 if (sband) {
 713                         brate = sband->bitrates[rate->idx].bitrate;
 714                         rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 715                 }
 716         }
 717         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 718                 rinfo->bw = RATE_INFO_BW_40;
 719         else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 720                 rinfo->bw = RATE_INFO_BW_80;
 721         else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 722                 rinfo->bw = RATE_INFO_BW_160;
 723         else
 724                 rinfo->bw = RATE_INFO_BW_20;
 725         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 726                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 727 }
 728
 729 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 730                                   int idx, u8 *mac, struct station_info *sinfo)
 731 {
 732         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 733         struct ieee80211_local *local = sdata->local;
 734         struct sta_info *sta;
 735         int ret = -ENOENT;
 736
 737         mutex_lock(&local->sta_mtx);
 738
 739         sta = sta_info_get_by_idx(sdata, idx);
 740         if (sta) {
 741                 ret = 0;
 742                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 743                 sta_set_sinfo(sta, sinfo, true);
 744         }
 745
 746         mutex_unlock(&local->sta_mtx);
 747
 748         return ret;
 749 }
 750
 751 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 752                                  int idx, struct survey_info *survey)
 753 {
 754         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 755
 756         return drv_get_survey(local, idx, survey);
 757 }
 758
 759 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 760                                  const u8 *mac, struct station_info *sinfo)
 761 {
 762         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 763         struct ieee80211_local *local = sdata->local;
 764         struct sta_info *sta;
 765         int ret = -ENOENT;
 766
 767         mutex_lock(&local->sta_mtx);
 768
 769         sta = sta_info_get_bss(sdata, mac);
 770         if (sta) {
 771                 ret = 0;
 772                 sta_set_sinfo(sta, sinfo, true);
 773         }
 774
 775         mutex_unlock(&local->sta_mtx);
 776
 777         return ret;
 778 }
 779
 780 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 781                                          struct cfg80211_chan_def *chandef)
 782 {
 783         struct ieee80211_local *local = wiphy_priv(wiphy);
 784         struct ieee80211_sub_if_data *sdata;
 785         int ret = 0;
 786
 787         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 788                 return 0;
 789
 790         mutex_lock(&local->mtx);
 791         if (local->use_chanctx) {
 792                 sdata = rtnl_dereference(local->monitor_sdata);
 793                 if (sdata) {
 794                         ieee80211_vif_release_channel(sdata);
 795                         ret = ieee80211_vif_use_channel(sdata, chandef,
 796                                         IEEE80211_CHANCTX_EXCLUSIVE);
 797                 }
 798         } else if (local->open_count == local->monitors) {
 799                 local->_oper_chandef = *chandef;
 800                 ieee80211_hw_config(local, 0);
 801         }
 802
 803         if (ret == 0)
 804                 local->monitor_chandef = *chandef;
 805         mutex_unlock(&local->mtx);
 806
 807         return ret;
 808 }
 809
 810 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 811                                     const u8 *resp, size_t resp_len,
 812                                     const struct ieee80211_csa_settings *csa)
 813 {
 814         struct probe_resp *new, *old;
 815
 816         if (!resp || !resp_len)
 817                 return 1;
 818
 819         old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 820
 821         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 822         if (!new)
 823                 return -ENOMEM;
 824
 825         new->len = resp_len;
 826         memcpy(new->data, resp, resp_len);
 827
 828         if (csa)
 829                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
 830                        csa->n_counter_offsets_presp *
 831                        sizeof(new->cntdwn_counter_offsets[0]));
 832
 833         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 834         if (old)
 835                 kfree_rcu(old, rcu_head);
 836
 837         return 0;
 838 }
 839
 840 static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
 841                                         struct cfg80211_fils_discovery *params)
 842 {
 843         struct fils_discovery_data *new, *old = NULL;
 844         struct ieee80211_fils_discovery *fd;
 845
 846         if (!params->tmpl || !params->tmpl_len)
 847                 return -EINVAL;
 848
 849         fd = &sdata->vif.bss_conf.fils_discovery;
 850         fd->min_interval = params->min_interval;
 851         fd->max_interval = params->max_interval;
 852
 853         old = sdata_dereference(sdata->u.ap.fils_discovery, sdata);
 854         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 855         if (!new)
 856                 return -ENOMEM;
 857         new->len = params->tmpl_len;
 858         memcpy(new->data, params->tmpl, params->tmpl_len);
 859         rcu_assign_pointer(sdata->u.ap.fils_discovery, new);
 860
 861         if (old)
 862                 kfree_rcu(old, rcu_head);
 863
 864         return 0;
 865 }
 866
 867 static int
 868 ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
 869                                      struct cfg80211_unsol_bcast_probe_resp *params)
 870 {
 871         struct unsol_bcast_probe_resp_data *new, *old = NULL;
 872
 873         if (!params->tmpl || !params->tmpl_len)
 874                 return -EINVAL;
 875
 876         old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata);
 877         new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 878         if (!new)
 879                 return -ENOMEM;
 880         new->len = params->tmpl_len;
 881         memcpy(new->data, params->tmpl, params->tmpl_len);
 882         rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new);
 883
 884         if (old)
 885                 kfree_rcu(old, rcu_head);
 886
 887         sdata->vif.bss_conf.unsol_bcast_probe_resp_interval =
 888                                                         params->interval;
 889
 890         return 0;
 891 }
 892
 893 static int ieee80211_set_ftm_responder_params(
 894                                 struct ieee80211_sub_if_data *sdata,
 895                                 const u8 *lci, size_t lci_len,
 896                                 const u8 *civicloc, size_t civicloc_len)
 897 {
 898         struct ieee80211_ftm_responder_params *new, *old;
 899         struct ieee80211_bss_conf *bss_conf;
 900         u8 *pos;
 901         int len;
 902
 903         if (!lci_len && !civicloc_len)
 904                 return 0;
 905
 906         bss_conf = &sdata->vif.bss_conf;
 907         old = bss_conf->ftmr_params;
 908         len = lci_len + civicloc_len;
 909
 910         new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
 911         if (!new)
 912                 return -ENOMEM;
 913
 914         pos = (u8 *)(new + 1);
 915         if (lci_len) {
 916                 new->lci_len = lci_len;
 917                 new->lci = pos;
 918                 memcpy(pos, lci, lci_len);
 919                 pos += lci_len;
 920         }
 921
 922         if (civicloc_len) {
 923                 new->civicloc_len = civicloc_len;
 924                 new->civicloc = pos;
 925                 memcpy(pos, civicloc, civicloc_len);
 926                 pos += civicloc_len;
 927         }
 928
 929         bss_conf->ftmr_params = new;
 930         kfree(old);
 931
 932         return 0;
 933 }
 934
 935 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 936                                    struct cfg80211_beacon_data *params,
 937                                    const struct ieee80211_csa_settings *csa)
 938 {
 939         struct beacon_data *new, *old;
 940         int new_head_len, new_tail_len;
 941         int size, err;
 942         u32 changed = BSS_CHANGED_BEACON;
 943
 944         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 945
 946
 947         /* Need to have a beacon head if we don't have one yet */
 948         if (!params->head && !old)
 949                 return -EINVAL;
 950
 951         /* new or old head? */
 952         if (params->head)
 953                 new_head_len = params->head_len;
 954         else
 955                 new_head_len = old->head_len;
 956
 957         /* new or old tail? */
 958         if (params->tail || !old)
 959                 /* params->tail_len will be zero for !params->tail */
 960                 new_tail_len = params->tail_len;
 961         else
 962                 new_tail_len = old->tail_len;
 963
 964         size = sizeof(*new) + new_head_len + new_tail_len;
 965
 966         new = kzalloc(size, GFP_KERNEL);
 967         if (!new)
 968                 return -ENOMEM;
 969
 970         /* start filling the new info now */
 971
 972         /*
 973          * pointers go into the block we allocated,
 974          * memory is | beacon_data | head | tail |
 975          */
 976         new->head = ((u8 *) new) + sizeof(*new);
 977         new->tail = new->head + new_head_len;
 978         new->head_len = new_head_len;
 979         new->tail_len = new_tail_len;
 980
 981         if (csa) {
 982                 new->cntdwn_current_counter = csa->count;
 983                 memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
 984                        csa->n_counter_offsets_beacon *
 985                        sizeof(new->cntdwn_counter_offsets[0]));
 986         }
 987
 988         /* copy in head */
 989         if (params->head)
 990                 memcpy(new->head, params->head, new_head_len);
 991         else
 992                 memcpy(new->head, old->head, new_head_len);
 993
 994         /* copy in optional tail */
 995         if (params->tail)
 996                 memcpy(new->tail, params->tail, new_tail_len);
 997         else
 998                 if (old)
 999                         memcpy(new->tail, old->tail, new_tail_len);
1000
1001         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1002                                        params->probe_resp_len, csa);
1003         if (err < 0) {
1004                 kfree(new);
1005                 return err;
1006         }
1007         if (err == 0)
1008                 changed |= BSS_CHANGED_AP_PROBE_RESP;
1009
1010         if (params->ftm_responder != -1) {
1011                 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
1012                 err = ieee80211_set_ftm_responder_params(sdata,
1013                                                          params->lci,
1014                                                          params->lci_len,
1015                                                          params->civicloc,
1016                                                          params->civicloc_len);
1017
1018                 if (err < 0) {
1019                         kfree(new);
1020                         return err;
1021                 }
1022
1023                 changed |= BSS_CHANGED_FTM_RESPONDER;
1024         }
1025
1026         rcu_assign_pointer(sdata->u.ap.beacon, new);
1027
1028         if (old)
1029                 kfree_rcu(old, rcu_head);
1030
1031         return changed;
1032 }
1033
1034 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1035                               struct cfg80211_ap_settings *params)
1036 {
1037         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1038         struct ieee80211_local *local = sdata->local;
1039         struct beacon_data *old;
1040         struct ieee80211_sub_if_data *vlan;
1041         u32 changed = BSS_CHANGED_BEACON_INT |
1042                       BSS_CHANGED_BEACON_ENABLED |
1043                       BSS_CHANGED_BEACON |
1044                       BSS_CHANGED_SSID |
1045                       BSS_CHANGED_P2P_PS |
1046                       BSS_CHANGED_TXPOWER |
1047                       BSS_CHANGED_TWT;
1048         int i, err;
1049         int prev_beacon_int;
1050
1051         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1052         if (old)
1053                 return -EALREADY;
1054
1055         if (params->smps_mode != NL80211_SMPS_OFF)
1056                 return -ENOTSUPP;
1057
1058         sdata->smps_mode = IEEE80211_SMPS_OFF;
1059
1060         sdata->needed_rx_chains = sdata->local->rx_chains;
1061
1062         prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1063         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1064
1065         if (params->he_cap && params->he_oper) {
1066                 sdata->vif.bss_conf.he_support = true;
1067                 sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1068                         le32_get_bits(params->he_oper->he_oper_params,
1069                               IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1070                 sdata->vif.bss_conf.frame_time_rts_th =
1071                         le32_get_bits(params->he_oper->he_oper_params,
1072                               IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1073                 changed |= BSS_CHANGED_HE_OBSS_PD;
1074
1075                 if (params->he_bss_color.enabled)
1076                         changed |= BSS_CHANGED_HE_BSS_COLOR;
1077         }
1078
1079         mutex_lock(&local->mtx);
1080         err = ieee80211_vif_use_channel(sdata, &params->chandef,
1081                                         IEEE80211_CHANCTX_SHARED);
1082         if (!err)
1083                 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1084         mutex_unlock(&local->mtx);
1085         if (err) {
1086                 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1087                 return err;
1088         }
1089
1090         /*
1091          * Apply control port protocol, this allows us to
1092          * not encrypt dynamic WEP control frames.
1093          */
1094         sdata->control_port_protocol = params->crypto.control_port_ethertype;
1095         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1096         sdata->control_port_over_nl80211 =
1097                                 params->crypto.control_port_over_nl80211;
1098         sdata->control_port_no_preauth =
1099                                 params->crypto.control_port_no_preauth;
1100         sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1101                                                         &params->crypto,
1102                                                         sdata->vif.type);
1103
1104         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1105                 vlan->control_port_protocol =
1106                         params->crypto.control_port_ethertype;
1107                 vlan->control_port_no_encrypt =
1108                         params->crypto.control_port_no_encrypt;
1109                 vlan->control_port_over_nl80211 =
1110                         params->crypto.control_port_over_nl80211;
1111                 vlan->control_port_no_preauth =
1112                         params->crypto.control_port_no_preauth;
1113                 vlan->encrypt_headroom =
1114                         ieee80211_cs_headroom(sdata->local,
1115                                               &params->crypto,
1116                                               vlan->vif.type);
1117         }
1118
1119         sdata->vif.bss_conf.dtim_period = params->dtim_period;
1120         sdata->vif.bss_conf.enable_beacon = true;
1121         sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1122         sdata->vif.bss_conf.twt_responder = params->twt_responder;
1123         memcpy(&sdata->vif.bss_conf.he_obss_pd, &params->he_obss_pd,
1124                sizeof(struct ieee80211_he_obss_pd));
1125         memcpy(&sdata->vif.bss_conf.he_bss_color, &params->he_bss_color,
1126                sizeof(struct ieee80211_he_bss_color));
1127         sdata->vif.bss_conf.s1g = params->chandef.chan->band ==
1128                                   NL80211_BAND_S1GHZ;
1129
1130         sdata->vif.bss_conf.ssid_len = params->ssid_len;
1131         if (params->ssid_len)
1132                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1133                        params->ssid_len);
1134         sdata->vif.bss_conf.hidden_ssid =
1135                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1136
1137         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1138                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1139         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1140                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1141         if (params->p2p_opp_ps)
1142                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1143                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1144
1145         sdata->beacon_rate_set = false;
1146         if (wiphy_ext_feature_isset(local->hw.wiphy,
1147                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1148                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
1149                         sdata->beacon_rateidx_mask[i] =
1150                                 params->beacon_rate.control[i].legacy;
1151                         if (sdata->beacon_rateidx_mask[i])
1152                                 sdata->beacon_rate_set = true;
1153                 }
1154         }
1155
1156         err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
1157         if (err < 0)
1158                 goto error;
1159         changed |= err;
1160
1161         if (params->fils_discovery.max_interval) {
1162                 err = ieee80211_set_fils_discovery(sdata,
1163                                                    &params->fils_discovery);
1164                 if (err < 0)
1165                         goto error;
1166                 changed |= BSS_CHANGED_FILS_DISCOVERY;
1167         }
1168
1169         if (params->unsol_bcast_probe_resp.interval) {
1170                 err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1171                                                            &params->unsol_bcast_probe_resp);
1172                 if (err < 0)
1173                         goto error;
1174                 changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1175         }
1176
1177         err = drv_start_ap(sdata->local, sdata);
1178         if (err) {
1179                 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1180
1181                 if (old)
1182                         kfree_rcu(old, rcu_head);
1183                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1184                 goto error;
1185         }
1186
1187         ieee80211_recalc_dtim(local, sdata);
1188         ieee80211_bss_info_change_notify(sdata, changed);
1189
1190         netif_carrier_on(dev);
1191         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1192                 netif_carrier_on(vlan->dev);
1193
1194         return 0;
1195
1196 error:
1197         ieee80211_vif_release_channel(sdata);
1198         return err;
1199 }
1200
1201 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1202                                    struct cfg80211_beacon_data *params)
1203 {
1204         struct ieee80211_sub_if_data *sdata;
1205         struct beacon_data *old;
1206         int err;
1207
1208         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1209         sdata_assert_lock(sdata);
1210
1211         /* don't allow changing the beacon while CSA is in place - offset
1212          * of channel switch counter may change
1213          */
1214         if (sdata->vif.csa_active)
1215                 return -EBUSY;
1216
1217         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1218         if (!old)
1219                 return -ENOENT;
1220
1221         err = ieee80211_assign_beacon(sdata, params, NULL);
1222         if (err < 0)
1223                 return err;
1224         ieee80211_bss_info_change_notify(sdata, err);
1225         return 0;
1226 }
1227
1228 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1229 {
1230         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1231         struct ieee80211_sub_if_data *vlan;
1232         struct ieee80211_local *local = sdata->local;
1233         struct beacon_data *old_beacon;
1234         struct probe_resp *old_probe_resp;
1235         struct fils_discovery_data *old_fils_discovery;
1236         struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1237         struct cfg80211_chan_def chandef;
1238
1239         sdata_assert_lock(sdata);
1240
1241         old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1242         if (!old_beacon)
1243                 return -ENOENT;
1244         old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1245         old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery,
1246                                                sdata);
1247         old_unsol_bcast_probe_resp =
1248                 sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp,
1249                                   sdata);
1250
1251         /* abort any running channel switch */
1252         mutex_lock(&local->mtx);
1253         sdata->vif.csa_active = false;
1254         if (sdata->csa_block_tx) {
1255                 ieee80211_wake_vif_queues(local, sdata,
1256                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1257                 sdata->csa_block_tx = false;
1258         }
1259
1260         mutex_unlock(&local->mtx);
1261
1262         kfree(sdata->u.ap.next_beacon);
1263         sdata->u.ap.next_beacon = NULL;
1264
1265         /* turn off carrier for this interface and dependent VLANs */
1266         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1267                 netif_carrier_off(vlan->dev);
1268         netif_carrier_off(dev);
1269
1270         /* remove beacon and probe response */
1271         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1272         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1273         RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL);
1274         RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL);
1275         kfree_rcu(old_beacon, rcu_head);
1276         if (old_probe_resp)
1277                 kfree_rcu(old_probe_resp, rcu_head);
1278         if (old_fils_discovery)
1279                 kfree_rcu(old_fils_discovery, rcu_head);
1280         if (old_unsol_bcast_probe_resp)
1281                 kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1282
1283         kfree(sdata->vif.bss_conf.ftmr_params);
1284         sdata->vif.bss_conf.ftmr_params = NULL;
1285
1286         __sta_info_flush(sdata, true);
1287         ieee80211_free_keys(sdata, true);
1288
1289         sdata->vif.bss_conf.enable_beacon = false;
1290         sdata->beacon_rate_set = false;
1291         sdata->vif.bss_conf.ssid_len = 0;
1292         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1293         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1294
1295         if (sdata->wdev.cac_started) {
1296                 chandef = sdata->vif.bss_conf.chandef;
1297                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1298                 cfg80211_cac_event(sdata->dev, &chandef,
1299                                    NL80211_RADAR_CAC_ABORTED,
1300                                    GFP_KERNEL);
1301         }
1302
1303         drv_stop_ap(sdata->local, sdata);
1304
1305         /* free all potentially still buffered bcast frames */
1306         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1307         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1308
1309         mutex_lock(&local->mtx);
1310         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1311         ieee80211_vif_release_channel(sdata);
1312         mutex_unlock(&local->mtx);
1313
1314         return 0;
1315 }
1316
1317 static int sta_apply_auth_flags(struct ieee80211_local *local,
1318                                 struct sta_info *sta,
1319                                 u32 mask, u32 set)
1320 {
1321         int ret;
1322
1323         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1324             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1325             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1326                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1327                 if (ret)
1328                         return ret;
1329         }
1330
1331         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1332             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1333             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1334                 /*
1335                  * When peer becomes associated, init rate control as
1336                  * well. Some drivers require rate control initialized
1337                  * before drv_sta_state() is called.
1338                  */
1339                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1340                         rate_control_rate_init(sta);
1341
1342                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1343                 if (ret)
1344                         return ret;
1345         }
1346
1347         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1348                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1349                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1350                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1351                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1352                 else
1353                         ret = 0;
1354                 if (ret)
1355                         return ret;
1356         }
1357
1358         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1359             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1360             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1361                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1362                 if (ret)
1363                         return ret;
1364         }
1365
1366         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1367             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1368             test_sta_flag(sta, WLAN_STA_AUTH)) {
1369                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1370                 if (ret)
1371                         return ret;
1372         }
1373
1374         return 0;
1375 }
1376
1377 static void sta_apply_mesh_params(struct ieee80211_local *local,
1378                                   struct sta_info *sta,
1379                                   struct station_parameters *params)
1380 {
1381 #ifdef CONFIG_MAC80211_MESH
1382         struct ieee80211_sub_if_data *sdata = sta->sdata;
1383         u32 changed = 0;
1384
1385         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1386                 switch (params->plink_state) {
1387                 case NL80211_PLINK_ESTAB:
1388                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1389                                 changed = mesh_plink_inc_estab_count(sdata);
1390                         sta->mesh->plink_state = params->plink_state;
1391                         sta->mesh->aid = params->peer_aid;
1392
1393                         ieee80211_mps_sta_status_update(sta);
1394                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1395                                       sdata->u.mesh.mshcfg.power_mode);
1396
1397                         ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1398                         /* init at low value */
1399                         ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1400
1401                         break;
1402                 case NL80211_PLINK_LISTEN:
1403                 case NL80211_PLINK_BLOCKED:
1404                 case NL80211_PLINK_OPN_SNT:
1405                 case NL80211_PLINK_OPN_RCVD:
1406                 case NL80211_PLINK_CNF_RCVD:
1407                 case NL80211_PLINK_HOLDING:
1408                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1409                                 changed = mesh_plink_dec_estab_count(sdata);
1410                         sta->mesh->plink_state = params->plink_state;
1411
1412                         ieee80211_mps_sta_status_update(sta);
1413                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1414                                         NL80211_MESH_POWER_UNKNOWN);
1415                         break;
1416                 default:
1417                         /*  nothing  */
1418                         break;
1419                 }
1420         }
1421
1422         switch (params->plink_action) {
1423         case NL80211_PLINK_ACTION_NO_ACTION:
1424                 /* nothing */
1425                 break;
1426         case NL80211_PLINK_ACTION_OPEN:
1427                 changed |= mesh_plink_open(sta);
1428                 break;
1429         case NL80211_PLINK_ACTION_BLOCK:
1430                 changed |= mesh_plink_block(sta);
1431                 break;
1432         }
1433
1434         if (params->local_pm)
1435                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1436                                                           params->local_pm);
1437
1438         ieee80211_mbss_info_change_notify(sdata, changed);
1439 #endif
1440 }
1441
1442 static int sta_apply_parameters(struct ieee80211_local *local,
1443                                 struct sta_info *sta,
1444                                 struct station_parameters *params)
1445 {
1446         int ret = 0;
1447         struct ieee80211_supported_band *sband;
1448         struct ieee80211_sub_if_data *sdata = sta->sdata;
1449         u32 mask, set;
1450
1451         sband = ieee80211_get_sband(sdata);
1452         if (!sband)
1453                 return -EINVAL;
1454
1455         mask = params->sta_flags_mask;
1456         set = params->sta_flags_set;
1457
1458         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1459                 /*
1460                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1461                  * API but must follow AUTHENTICATED for driver state.
1462                  */
1463                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1464                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1465                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1466                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1467         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1468                 /*
1469                  * TDLS -- everything follows authorized, but
1470                  * only becoming authorized is possible, not
1471                  * going back
1472                  */
1473                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1474                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1475                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1476                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1477                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1478                 }
1479         }
1480
1481         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1482             local->hw.queues >= IEEE80211_NUM_ACS)
1483                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1484
1485         /* auth flags will be set later for TDLS,
1486          * and for unassociated stations that move to assocaited */
1487         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1488             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1489               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1490                 ret = sta_apply_auth_flags(local, sta, mask, set);
1491                 if (ret)
1492                         return ret;
1493         }
1494
1495         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1496                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1497                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1498                 else
1499                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1500         }
1501
1502         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1503                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1504                 if (set & BIT(NL80211_STA_FLAG_MFP))
1505                         set_sta_flag(sta, WLAN_STA_MFP);
1506                 else
1507                         clear_sta_flag(sta, WLAN_STA_MFP);
1508         }
1509
1510         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1511                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1512                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1513                 else
1514                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1515         }
1516
1517         /* mark TDLS channel switch support, if the AP allows it */
1518         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1519             !sdata->u.mgd.tdls_chan_switch_prohibited &&
1520             params->ext_capab_len >= 4 &&
1521             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1522                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1523
1524         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1525             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1526             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1527             params->ext_capab_len >= 8 &&
1528             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1529                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1530
1531         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1532                 sta->sta.uapsd_queues = params->uapsd_queues;
1533                 sta->sta.max_sp = params->max_sp;
1534         }
1535
1536         /* The sender might not have sent the last bit, consider it to be 0 */
1537         if (params->ext_capab_len >= 8) {
1538                 u8 val = (params->ext_capab[7] &
1539                           WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1540
1541                 /* we did get all the bits, take the MSB as well */
1542                 if (params->ext_capab_len >= 9) {
1543                         u8 val_msb = params->ext_capab[8] &
1544                                 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1545                         val_msb <<= 1;
1546                         val |= val_msb;
1547                 }
1548
1549                 switch (val) {
1550                 case 1:
1551                         sta->sta.max_amsdu_subframes = 32;
1552                         break;
1553                 case 2:
1554                         sta->sta.max_amsdu_subframes = 16;
1555                         break;
1556                 case 3:
1557                         sta->sta.max_amsdu_subframes = 8;
1558                         break;
1559                 default:
1560                         sta->sta.max_amsdu_subframes = 0;
1561                 }
1562         }
1563
1564         /*
1565          * cfg80211 validates this (1-2007) and allows setting the AID
1566          * only when creating a new station entry
1567          */
1568         if (params->aid)
1569                 sta->sta.aid = params->aid;
1570
1571         /*
1572          * Some of the following updates would be racy if called on an
1573          * existing station, via ieee80211_change_station(). However,
1574          * all such changes are rejected by cfg80211 except for updates
1575          * changing the supported rates on an existing but not yet used
1576          * TDLS peer.
1577          */
1578
1579         if (params->listen_interval >= 0)
1580                 sta->listen_interval = params->listen_interval;
1581
1582         if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1583                 sta->sta.txpwr.type = params->txpwr.type;
1584                 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1585                         sta->sta.txpwr.power = params->txpwr.power;
1586                 ret = drv_sta_set_txpwr(local, sdata, sta);
1587                 if (ret)
1588                         return ret;
1589         }
1590
1591         if (params->supported_rates && params->supported_rates_len) {
1592                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1593                                          sband, params->supported_rates,
1594                                          params->supported_rates_len,
1595                                          &sta->sta.supp_rates[sband->band]);
1596         }
1597
1598         if (params->ht_capa)
1599                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1600                                                   params->ht_capa, sta);
1601
1602         /* VHT can override some HT caps such as the A-MSDU max length */
1603         if (params->vht_capa)
1604                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1605                                                     params->vht_capa, sta);
1606
1607         if (params->he_capa)
1608                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1609                                                   (void *)params->he_capa,
1610                                                   params->he_capa_len,
1611                                                   (void *)params->he_6ghz_capa,
1612                                                   sta);
1613
1614         if (params->opmode_notif_used) {
1615                 /* returned value is only needed for rc update, but the
1616                  * rc isn't initialized here yet, so ignore it
1617                  */
1618                 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1619                                               sband->band);
1620         }
1621
1622         if (params->support_p2p_ps >= 0)
1623                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1624
1625         if (ieee80211_vif_is_mesh(&sdata->vif))
1626                 sta_apply_mesh_params(local, sta, params);
1627
1628         if (params->airtime_weight)
1629                 sta->airtime_weight = params->airtime_weight;
1630
1631         /* set the STA state after all sta info from usermode has been set */
1632         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1633             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1634                 ret = sta_apply_auth_flags(local, sta, mask, set);
1635                 if (ret)
1636                         return ret;
1637         }
1638
1639         return 0;
1640 }
1641
1642 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1643                                  const u8 *mac,
1644                                  struct station_parameters *params)
1645 {
1646         struct ieee80211_local *local = wiphy_priv(wiphy);
1647         struct sta_info *sta;
1648         struct ieee80211_sub_if_data *sdata;
1649         int err;
1650
1651         if (params->vlan) {
1652                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1653
1654                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1655                     sdata->vif.type != NL80211_IFTYPE_AP)
1656                         return -EINVAL;
1657         } else
1658                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1659
1660         if (ether_addr_equal(mac, sdata->vif.addr))
1661                 return -EINVAL;
1662
1663         if (!is_valid_ether_addr(mac))
1664                 return -EINVAL;
1665
1666         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1667             sdata->vif.type == NL80211_IFTYPE_STATION &&
1668             !sdata->u.mgd.associated)
1669                 return -EINVAL;
1670
1671         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1672         if (!sta)
1673                 return -ENOMEM;
1674
1675         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1676                 sta->sta.tdls = true;
1677
1678         err = sta_apply_parameters(local, sta, params);
1679         if (err) {
1680                 sta_info_free(local, sta);
1681                 return err;
1682         }
1683
1684         /*
1685          * for TDLS and for unassociated station, rate control should be
1686          * initialized only when rates are known and station is marked
1687          * authorized/associated
1688          */
1689         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1690             test_sta_flag(sta, WLAN_STA_ASSOC))
1691                 rate_control_rate_init(sta);
1692
1693         err = sta_info_insert_rcu(sta);
1694         if (err) {
1695                 rcu_read_unlock();
1696                 return err;
1697         }
1698
1699         rcu_read_unlock();
1700
1701         return 0;
1702 }
1703
1704 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1705                                  struct station_del_parameters *params)
1706 {
1707         struct ieee80211_sub_if_data *sdata;
1708
1709         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1710
1711         if (params->mac)
1712                 return sta_info_destroy_addr_bss(sdata, params->mac);
1713
1714         sta_info_flush(sdata);
1715         return 0;
1716 }
1717
1718 static int ieee80211_change_station(struct wiphy *wiphy,
1719                                     struct net_device *dev, const u8 *mac,
1720                                     struct station_parameters *params)
1721 {
1722         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1723         struct ieee80211_local *local = wiphy_priv(wiphy);
1724         struct sta_info *sta;
1725         struct ieee80211_sub_if_data *vlansdata;
1726         enum cfg80211_station_type statype;
1727         int err;
1728
1729         mutex_lock(&local->sta_mtx);
1730
1731         sta = sta_info_get_bss(sdata, mac);
1732         if (!sta) {
1733                 err = -ENOENT;
1734                 goto out_err;
1735         }
1736
1737         switch (sdata->vif.type) {
1738         case NL80211_IFTYPE_MESH_POINT:
1739                 if (sdata->u.mesh.user_mpm)
1740                         statype = CFG80211_STA_MESH_PEER_USER;
1741                 else
1742                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1743                 break;
1744         case NL80211_IFTYPE_ADHOC:
1745                 statype = CFG80211_STA_IBSS;
1746                 break;
1747         case NL80211_IFTYPE_STATION:
1748                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1749                         statype = CFG80211_STA_AP_STA;
1750                         break;
1751                 }
1752                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1753                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1754                 else
1755                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1756                 break;
1757         case NL80211_IFTYPE_AP:
1758         case NL80211_IFTYPE_AP_VLAN:
1759                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1760                         statype = CFG80211_STA_AP_CLIENT;
1761                 else
1762                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1763                 break;
1764         default:
1765                 err = -EOPNOTSUPP;
1766                 goto out_err;
1767         }
1768
1769         err = cfg80211_check_station_change(wiphy, params, statype);
1770         if (err)
1771                 goto out_err;
1772
1773         if (params->vlan && params->vlan != sta->sdata->dev) {
1774                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1775
1776                 if (params->vlan->ieee80211_ptr->use_4addr) {
1777                         if (vlansdata->u.vlan.sta) {
1778                                 err = -EBUSY;
1779                                 goto out_err;
1780                         }
1781
1782                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1783                         __ieee80211_check_fast_rx_iface(vlansdata);
1784                         drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1785                 }
1786
1787                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1788                     sta->sdata->u.vlan.sta)
1789                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1790
1791                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1792                         ieee80211_vif_dec_num_mcast(sta->sdata);
1793
1794                 sta->sdata = vlansdata;
1795                 ieee80211_check_fast_xmit(sta);
1796
1797                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1798                         ieee80211_vif_inc_num_mcast(sta->sdata);
1799                         cfg80211_send_layer2_update(sta->sdata->dev,
1800                                                     sta->sta.addr);
1801                 }
1802         }
1803
1804         err = sta_apply_parameters(local, sta, params);
1805         if (err)
1806                 goto out_err;
1807
1808         mutex_unlock(&local->sta_mtx);
1809
1810         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1811             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1812                 ieee80211_recalc_ps(local);
1813                 ieee80211_recalc_ps_vif(sdata);
1814         }
1815
1816         return 0;
1817 out_err:
1818         mutex_unlock(&local->sta_mtx);
1819         return err;
1820 }
1821
1822 #ifdef CONFIG_MAC80211_MESH
1823 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1824                                const u8 *dst, const u8 *next_hop)
1825 {
1826         struct ieee80211_sub_if_data *sdata;
1827         struct mesh_path *mpath;
1828         struct sta_info *sta;
1829
1830         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1831
1832         rcu_read_lock();
1833         sta = sta_info_get(sdata, next_hop);
1834         if (!sta) {
1835                 rcu_read_unlock();
1836                 return -ENOENT;
1837         }
1838
1839         mpath = mesh_path_add(sdata, dst);
1840         if (IS_ERR(mpath)) {
1841                 rcu_read_unlock();
1842                 return PTR_ERR(mpath);
1843         }
1844
1845         mesh_path_fix_nexthop(mpath, sta);
1846
1847         rcu_read_unlock();
1848         return 0;
1849 }
1850
1851 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1852                                const u8 *dst)
1853 {
1854         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1855
1856         if (dst)
1857                 return mesh_path_del(sdata, dst);
1858
1859         mesh_path_flush_by_iface(sdata);
1860         return 0;
1861 }
1862
1863 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1864                                   const u8 *dst, const u8 *next_hop)
1865 {
1866         struct ieee80211_sub_if_data *sdata;
1867         struct mesh_path *mpath;
1868         struct sta_info *sta;
1869
1870         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1871
1872         rcu_read_lock();
1873
1874         sta = sta_info_get(sdata, next_hop);
1875         if (!sta) {
1876                 rcu_read_unlock();
1877                 return -ENOENT;
1878         }
1879
1880         mpath = mesh_path_lookup(sdata, dst);
1881         if (!mpath) {
1882                 rcu_read_unlock();
1883                 return -ENOENT;
1884         }
1885
1886         mesh_path_fix_nexthop(mpath, sta);
1887
1888         rcu_read_unlock();
1889         return 0;
1890 }
1891
1892 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1893                             struct mpath_info *pinfo)
1894 {
1895         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1896
1897         if (next_hop_sta)
1898                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1899         else
1900                 eth_zero_addr(next_hop);
1901
1902         memset(pinfo, 0, sizeof(*pinfo));
1903
1904         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1905
1906         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1907                         MPATH_INFO_SN |
1908                         MPATH_INFO_METRIC |
1909                         MPATH_INFO_EXPTIME |
1910                         MPATH_INFO_DISCOVERY_TIMEOUT |
1911                         MPATH_INFO_DISCOVERY_RETRIES |
1912                         MPATH_INFO_FLAGS |
1913                         MPATH_INFO_HOP_COUNT |
1914                         MPATH_INFO_PATH_CHANGE;
1915
1916         pinfo->frame_qlen = mpath->frame_queue.qlen;
1917         pinfo->sn = mpath->sn;
1918         pinfo->metric = mpath->metric;
1919         if (time_before(jiffies, mpath->exp_time))
1920                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1921         pinfo->discovery_timeout =
1922                         jiffies_to_msecs(mpath->discovery_timeout);
1923         pinfo->discovery_retries = mpath->discovery_retries;
1924         if (mpath->flags & MESH_PATH_ACTIVE)
1925                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1926         if (mpath->flags & MESH_PATH_RESOLVING)
1927                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1928         if (mpath->flags & MESH_PATH_SN_VALID)
1929                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1930         if (mpath->flags & MESH_PATH_FIXED)
1931                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1932         if (mpath->flags & MESH_PATH_RESOLVED)
1933                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1934         pinfo->hop_count = mpath->hop_count;
1935         pinfo->path_change_count = mpath->path_change_count;
1936 }
1937
1938 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1939                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1940
1941 {
1942         struct ieee80211_sub_if_data *sdata;
1943         struct mesh_path *mpath;
1944
1945         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1946
1947         rcu_read_lock();
1948         mpath = mesh_path_lookup(sdata, dst);
1949         if (!mpath) {
1950                 rcu_read_unlock();
1951                 return -ENOENT;
1952         }
1953         memcpy(dst, mpath->dst, ETH_ALEN);
1954         mpath_set_pinfo(mpath, next_hop, pinfo);
1955         rcu_read_unlock();
1956         return 0;
1957 }
1958
1959 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1960                                 int idx, u8 *dst, u8 *next_hop,
1961                                 struct mpath_info *pinfo)
1962 {
1963         struct ieee80211_sub_if_data *sdata;
1964         struct mesh_path *mpath;
1965
1966         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1967
1968         rcu_read_lock();
1969         mpath = mesh_path_lookup_by_idx(sdata, idx);
1970         if (!mpath) {
1971                 rcu_read_unlock();
1972                 return -ENOENT;
1973         }
1974         memcpy(dst, mpath->dst, ETH_ALEN);
1975         mpath_set_pinfo(mpath, next_hop, pinfo);
1976         rcu_read_unlock();
1977         return 0;
1978 }
1979
1980 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1981                           struct mpath_info *pinfo)
1982 {
1983         memset(pinfo, 0, sizeof(*pinfo));
1984         memcpy(mpp, mpath->mpp, ETH_ALEN);
1985
1986         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1987 }
1988
1989 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1990                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1991
1992 {
1993         struct ieee80211_sub_if_data *sdata;
1994         struct mesh_path *mpath;
1995
1996         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1997
1998         rcu_read_lock();
1999         mpath = mpp_path_lookup(sdata, dst);
2000         if (!mpath) {
2001                 rcu_read_unlock();
2002                 return -ENOENT;
2003         }
2004         memcpy(dst, mpath->dst, ETH_ALEN);
2005         mpp_set_pinfo(mpath, mpp, pinfo);
2006         rcu_read_unlock();
2007         return 0;
2008 }
2009
2010 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2011                               int idx, u8 *dst, u8 *mpp,
2012                               struct mpath_info *pinfo)
2013 {
2014         struct ieee80211_sub_if_data *sdata;
2015         struct mesh_path *mpath;
2016
2017         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2018
2019         rcu_read_lock();
2020         mpath = mpp_path_lookup_by_idx(sdata, idx);
2021         if (!mpath) {
2022                 rcu_read_unlock();
2023                 return -ENOENT;
2024         }
2025         memcpy(dst, mpath->dst, ETH_ALEN);
2026         mpp_set_pinfo(mpath, mpp, pinfo);
2027         rcu_read_unlock();
2028         return 0;
2029 }
2030
2031 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2032                                 struct net_device *dev,
2033                                 struct mesh_config *conf)
2034 {
2035         struct ieee80211_sub_if_data *sdata;
2036         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2037
2038         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2039         return 0;
2040 }
2041
2042 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2043 {
2044         return (mask >> (parm-1)) & 0x1;
2045 }
2046
2047 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2048                 const struct mesh_setup *setup)
2049 {
2050         u8 *new_ie;
2051         const u8 *old_ie;
2052         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2053                                         struct ieee80211_sub_if_data, u.mesh);
2054         int i;
2055
2056         /* allocate information elements */
2057         new_ie = NULL;
2058         old_ie = ifmsh->ie;
2059
2060         if (setup->ie_len) {
2061                 new_ie = kmemdup(setup->ie, setup->ie_len,
2062                                 GFP_KERNEL);
2063                 if (!new_ie)
2064                         return -ENOMEM;
2065         }
2066         ifmsh->ie_len = setup->ie_len;
2067         ifmsh->ie = new_ie;
2068         kfree(old_ie);
2069
2070         /* now copy the rest of the setup parameters */
2071         ifmsh->mesh_id_len = setup->mesh_id_len;
2072         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2073         ifmsh->mesh_sp_id = setup->sync_method;
2074         ifmsh->mesh_pp_id = setup->path_sel_proto;
2075         ifmsh->mesh_pm_id = setup->path_metric;
2076         ifmsh->user_mpm = setup->user_mpm;
2077         ifmsh->mesh_auth_id = setup->auth_id;
2078         ifmsh->security = IEEE80211_MESH_SEC_NONE;
2079         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2080         if (setup->is_authenticated)
2081                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2082         if (setup->is_secure)
2083                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2084
2085         /* mcast rate setting in Mesh Node */
2086         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2087                                                 sizeof(setup->mcast_rate));
2088         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2089
2090         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2091         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2092
2093         sdata->beacon_rate_set = false;
2094         if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2095                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2096                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2097                         sdata->beacon_rateidx_mask[i] =
2098                                 setup->beacon_rate.control[i].legacy;
2099                         if (sdata->beacon_rateidx_mask[i])
2100                                 sdata->beacon_rate_set = true;
2101                 }
2102         }
2103
2104         return 0;
2105 }
2106
2107 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2108                                         struct net_device *dev, u32 mask,
2109                                         const struct mesh_config *nconf)
2110 {
2111         struct mesh_config *conf;
2112         struct ieee80211_sub_if_data *sdata;
2113         struct ieee80211_if_mesh *ifmsh;
2114
2115         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2116         ifmsh = &sdata->u.mesh;
2117
2118         /* Set the config options which we are interested in setting */
2119         conf = &(sdata->u.mesh.mshcfg);
2120         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2121                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2122         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2123                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2124         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2125                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2126         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2127                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2128         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2129                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2130         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2131                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2132         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2133                 conf->element_ttl = nconf->element_ttl;
2134         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2135                 if (ifmsh->user_mpm)
2136                         return -EBUSY;
2137                 conf->auto_open_plinks = nconf->auto_open_plinks;
2138         }
2139         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2140                 conf->dot11MeshNbrOffsetMaxNeighbor =
2141                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2142         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2143                 conf->dot11MeshHWMPmaxPREQretries =
2144                         nconf->dot11MeshHWMPmaxPREQretries;
2145         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2146                 conf->path_refresh_time = nconf->path_refresh_time;
2147         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2148                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2149         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2150                 conf->dot11MeshHWMPactivePathTimeout =
2151                         nconf->dot11MeshHWMPactivePathTimeout;
2152         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2153                 conf->dot11MeshHWMPpreqMinInterval =
2154                         nconf->dot11MeshHWMPpreqMinInterval;
2155         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2156                 conf->dot11MeshHWMPperrMinInterval =
2157                         nconf->dot11MeshHWMPperrMinInterval;
2158         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2159                            mask))
2160                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2161                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2162         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2163                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2164                 ieee80211_mesh_root_setup(ifmsh);
2165         }
2166         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2167                 /* our current gate announcement implementation rides on root
2168                  * announcements, so require this ifmsh to also be a root node
2169                  * */
2170                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2171                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2172                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2173                         ieee80211_mesh_root_setup(ifmsh);
2174                 }
2175                 conf->dot11MeshGateAnnouncementProtocol =
2176                         nconf->dot11MeshGateAnnouncementProtocol;
2177         }
2178         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2179                 conf->dot11MeshHWMPRannInterval =
2180                         nconf->dot11MeshHWMPRannInterval;
2181         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2182                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2183         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2184                 /* our RSSI threshold implementation is supported only for
2185                  * devices that report signal in dBm.
2186                  */
2187                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2188                         return -ENOTSUPP;
2189                 conf->rssi_threshold = nconf->rssi_threshold;
2190         }
2191         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2192                 conf->ht_opmode = nconf->ht_opmode;
2193                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2194                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2195         }
2196         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2197                 conf->dot11MeshHWMPactivePathToRootTimeout =
2198                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2199         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2200                 conf->dot11MeshHWMProotInterval =
2201                         nconf->dot11MeshHWMProotInterval;
2202         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2203                 conf->dot11MeshHWMPconfirmationInterval =
2204                         nconf->dot11MeshHWMPconfirmationInterval;
2205         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2206                 conf->power_mode = nconf->power_mode;
2207                 ieee80211_mps_local_status_update(sdata);
2208         }
2209         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2210                 conf->dot11MeshAwakeWindowDuration =
2211                         nconf->dot11MeshAwakeWindowDuration;
2212         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2213                 conf->plink_timeout = nconf->plink_timeout;
2214         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2215                 conf->dot11MeshConnectedToMeshGate =
2216                         nconf->dot11MeshConnectedToMeshGate;
2217         if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2218                 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2219         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2220                 conf->dot11MeshConnectedToAuthServer =
2221                         nconf->dot11MeshConnectedToAuthServer;
2222         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2223         return 0;
2224 }
2225
2226 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2227                                const struct mesh_config *conf,
2228                                const struct mesh_setup *setup)
2229 {
2230         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2231         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2232         int err;
2233
2234         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2235         err = copy_mesh_setup(ifmsh, setup);
2236         if (err)
2237                 return err;
2238
2239         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2240
2241         /* can mesh use other SMPS modes? */
2242         sdata->smps_mode = IEEE80211_SMPS_OFF;
2243         sdata->needed_rx_chains = sdata->local->rx_chains;
2244
2245         mutex_lock(&sdata->local->mtx);
2246         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2247                                         IEEE80211_CHANCTX_SHARED);
2248         mutex_unlock(&sdata->local->mtx);
2249         if (err)
2250                 return err;
2251
2252         return ieee80211_start_mesh(sdata);
2253 }
2254
2255 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2256 {
2257         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2258
2259         ieee80211_stop_mesh(sdata);
2260         mutex_lock(&sdata->local->mtx);
2261         ieee80211_vif_release_channel(sdata);
2262         kfree(sdata->u.mesh.ie);
2263         mutex_unlock(&sdata->local->mtx);
2264
2265         return 0;
2266 }
2267 #endif
2268
2269 static int ieee80211_change_bss(struct wiphy *wiphy,
2270                                 struct net_device *dev,
2271                                 struct bss_parameters *params)
2272 {
2273         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2274         struct ieee80211_supported_band *sband;
2275         u32 changed = 0;
2276
2277         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2278                 return -ENOENT;
2279
2280         sband = ieee80211_get_sband(sdata);
2281         if (!sband)
2282                 return -EINVAL;
2283
2284         if (params->use_cts_prot >= 0) {
2285                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2286                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2287         }
2288         if (params->use_short_preamble >= 0) {
2289                 sdata->vif.bss_conf.use_short_preamble =
2290                         params->use_short_preamble;
2291                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2292         }
2293
2294         if (!sdata->vif.bss_conf.use_short_slot &&
2295             (sband->band == NL80211_BAND_5GHZ ||
2296              sband->band == NL80211_BAND_6GHZ)) {
2297                 sdata->vif.bss_conf.use_short_slot = true;
2298                 changed |= BSS_CHANGED_ERP_SLOT;
2299         }
2300
2301         if (params->use_short_slot_time >= 0) {
2302                 sdata->vif.bss_conf.use_short_slot =
2303                         params->use_short_slot_time;
2304                 changed |= BSS_CHANGED_ERP_SLOT;
2305         }
2306
2307         if (params->basic_rates) {
2308                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2309                                          wiphy->bands[sband->band],
2310                                          params->basic_rates,
2311                                          params->basic_rates_len,
2312                                          &sdata->vif.bss_conf.basic_rates);
2313                 changed |= BSS_CHANGED_BASIC_RATES;
2314                 ieee80211_check_rate_mask(sdata);
2315         }
2316
2317         if (params->ap_isolate >= 0) {
2318                 if (params->ap_isolate)
2319                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2320                 else
2321                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2322                 ieee80211_check_fast_rx_iface(sdata);
2323         }
2324
2325         if (params->ht_opmode >= 0) {
2326                 sdata->vif.bss_conf.ht_operation_mode =
2327                         (u16) params->ht_opmode;
2328                 changed |= BSS_CHANGED_HT;
2329         }
2330
2331         if (params->p2p_ctwindow >= 0) {
2332                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2333                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2334                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2335                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2336                 changed |= BSS_CHANGED_P2P_PS;
2337         }
2338
2339         if (params->p2p_opp_ps > 0) {
2340                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2341                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2342                 changed |= BSS_CHANGED_P2P_PS;
2343         } else if (params->p2p_opp_ps == 0) {
2344                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2345                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2346                 changed |= BSS_CHANGED_P2P_PS;
2347         }
2348
2349         ieee80211_bss_info_change_notify(sdata, changed);
2350
2351         return 0;
2352 }
2353
2354 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2355                                     struct net_device *dev,
2356                                     struct ieee80211_txq_params *params)
2357 {
2358         struct ieee80211_local *local = wiphy_priv(wiphy);
2359         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2360         struct ieee80211_tx_queue_params p;
2361
2362         if (!local->ops->conf_tx)
2363                 return -EOPNOTSUPP;
2364
2365         if (local->hw.queues < IEEE80211_NUM_ACS)
2366                 return -EOPNOTSUPP;
2367
2368         memset(&p, 0, sizeof(p));
2369         p.aifs = params->aifs;
2370         p.cw_max = params->cwmax;
2371         p.cw_min = params->cwmin;
2372         p.txop = params->txop;
2373
2374         /*
2375          * Setting tx queue params disables u-apsd because it's only
2376          * called in master mode.
2377          */
2378         p.uapsd = false;
2379
2380         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2381
2382         sdata->tx_conf[params->ac] = p;
2383         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2384                 wiphy_debug(local->hw.wiphy,
2385                             "failed to set TX queue parameters for AC %d\n",
2386                             params->ac);
2387                 return -EINVAL;
2388         }
2389
2390         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2391
2392         return 0;
2393 }
2394
2395 #ifdef CONFIG_PM
2396 static int ieee80211_suspend(struct wiphy *wiphy,
2397                              struct cfg80211_wowlan *wowlan)
2398 {
2399         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2400 }
2401
2402 static int ieee80211_resume(struct wiphy *wiphy)
2403 {
2404         return __ieee80211_resume(wiphy_priv(wiphy));
2405 }
2406 #else
2407 #define ieee80211_suspend NULL
2408 #define ieee80211_resume NULL
2409 #endif
2410
2411 static int ieee80211_scan(struct wiphy *wiphy,
2412                           struct cfg80211_scan_request *req)
2413 {
2414         struct ieee80211_sub_if_data *sdata;
2415
2416         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2417
2418         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2419         case NL80211_IFTYPE_STATION:
2420         case NL80211_IFTYPE_ADHOC:
2421         case NL80211_IFTYPE_MESH_POINT:
2422         case NL80211_IFTYPE_P2P_CLIENT:
2423         case NL80211_IFTYPE_P2P_DEVICE:
2424                 break;
2425         case NL80211_IFTYPE_P2P_GO:
2426                 if (sdata->local->ops->hw_scan)
2427                         break;
2428                 /*
2429                  * FIXME: implement NoA while scanning in software,
2430                  * for now fall through to allow scanning only when
2431                  * beaconing hasn't been configured yet
2432                  */
2433                 fallthrough;
2434         case NL80211_IFTYPE_AP:
2435                 /*
2436                  * If the scan has been forced (and the driver supports
2437                  * forcing), don't care about being beaconing already.
2438                  * This will create problems to the attached stations (e.g. all
2439                  * the  frames sent while scanning on other channel will be
2440                  * lost)
2441                  */
2442                 if (sdata->u.ap.beacon &&
2443                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2444                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2445                         return -EOPNOTSUPP;
2446                 break;
2447         case NL80211_IFTYPE_NAN:
2448         default:
2449                 return -EOPNOTSUPP;
2450         }
2451
2452         return ieee80211_request_scan(sdata, req);
2453 }
2454
2455 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2456 {
2457         ieee80211_scan_cancel(wiphy_priv(wiphy));
2458 }
2459
2460 static int
2461 ieee80211_sched_scan_start(struct wiphy *wiphy,
2462                            struct net_device *dev,
2463                            struct cfg80211_sched_scan_request *req)
2464 {
2465         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2466
2467         if (!sdata->local->ops->sched_scan_start)
2468                 return -EOPNOTSUPP;
2469
2470         return ieee80211_request_sched_scan_start(sdata, req);
2471 }
2472
2473 static int
2474 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2475                           u64 reqid)
2476 {
2477         struct ieee80211_local *local = wiphy_priv(wiphy);
2478
2479         if (!local->ops->sched_scan_stop)
2480                 return -EOPNOTSUPP;
2481
2482         return ieee80211_request_sched_scan_stop(local);
2483 }
2484
2485 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2486                           struct cfg80211_auth_request *req)
2487 {
2488         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2489 }
2490
2491 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2492                            struct cfg80211_assoc_request *req)
2493 {
2494         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2495 }
2496
2497 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2498                             struct cfg80211_deauth_request *req)
2499 {
2500         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2501 }
2502
2503 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2504                               struct cfg80211_disassoc_request *req)
2505 {
2506         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2507 }
2508
2509 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2510                                struct cfg80211_ibss_params *params)
2511 {
2512         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2513 }
2514
2515 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2516 {
2517         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2518 }
2519
2520 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2521                               struct ocb_setup *setup)
2522 {
2523         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2524 }
2525
2526 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2527 {
2528         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2529 }
2530
2531 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2532                                     int rate[NUM_NL80211_BANDS])
2533 {
2534         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2535
2536         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2537                sizeof(int) * NUM_NL80211_BANDS);
2538
2539         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2540
2541         return 0;
2542 }
2543
2544 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2545 {
2546         struct ieee80211_local *local = wiphy_priv(wiphy);
2547         int err;
2548
2549         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2550                 ieee80211_check_fast_xmit_all(local);
2551
2552                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2553
2554                 if (err) {
2555                         ieee80211_check_fast_xmit_all(local);
2556                         return err;
2557                 }
2558         }
2559
2560         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2561             (changed & WIPHY_PARAM_DYN_ACK)) {
2562                 s16 coverage_class;
2563
2564                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2565                                         wiphy->coverage_class : -1;
2566                 err = drv_set_coverage_class(local, coverage_class);
2567
2568                 if (err)
2569                         return err;
2570         }
2571
2572         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2573                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2574
2575                 if (err)
2576                         return err;
2577         }
2578
2579         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2580                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2581                         return -EINVAL;
2582                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2583         }
2584         if (changed & WIPHY_PARAM_RETRY_LONG) {
2585                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2586                         return -EINVAL;
2587                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2588         }
2589         if (changed &
2590             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2591                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2592
2593         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2594                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2595                        WIPHY_PARAM_TXQ_QUANTUM))
2596                 ieee80211_txq_set_params(local);
2597
2598         return 0;
2599 }
2600
2601 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2602                                   struct wireless_dev *wdev,
2603                                   enum nl80211_tx_power_setting type, int mbm)
2604 {
2605         struct ieee80211_local *local = wiphy_priv(wiphy);
2606         struct ieee80211_sub_if_data *sdata;
2607         enum nl80211_tx_power_setting txp_type = type;
2608         bool update_txp_type = false;
2609         bool has_monitor = false;
2610
2611         if (wdev) {
2612                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2613
2614                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2615                         sdata = rtnl_dereference(local->monitor_sdata);
2616                         if (!sdata)
2617                                 return -EOPNOTSUPP;
2618                 }
2619
2620                 switch (type) {
2621                 case NL80211_TX_POWER_AUTOMATIC:
2622                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2623                         txp_type = NL80211_TX_POWER_LIMITED;
2624                         break;
2625                 case NL80211_TX_POWER_LIMITED:
2626                 case NL80211_TX_POWER_FIXED:
2627                         if (mbm < 0 || (mbm % 100))
2628                                 return -EOPNOTSUPP;
2629                         sdata->user_power_level = MBM_TO_DBM(mbm);
2630                         break;
2631                 }
2632
2633                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2634                         update_txp_type = true;
2635                         sdata->vif.bss_conf.txpower_type = txp_type;
2636                 }
2637
2638                 ieee80211_recalc_txpower(sdata, update_txp_type);
2639
2640                 return 0;
2641         }
2642
2643         switch (type) {
2644         case NL80211_TX_POWER_AUTOMATIC:
2645                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2646                 txp_type = NL80211_TX_POWER_LIMITED;
2647                 break;
2648         case NL80211_TX_POWER_LIMITED:
2649         case NL80211_TX_POWER_FIXED:
2650                 if (mbm < 0 || (mbm % 100))
2651                         return -EOPNOTSUPP;
2652                 local->user_power_level = MBM_TO_DBM(mbm);
2653                 break;
2654         }
2655
2656         mutex_lock(&local->iflist_mtx);
2657         list_for_each_entry(sdata, &local->interfaces, list) {
2658                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2659                         has_monitor = true;
2660                         continue;
2661                 }
2662                 sdata->user_power_level = local->user_power_level;
2663                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2664                         update_txp_type = true;
2665                 sdata->vif.bss_conf.txpower_type = txp_type;
2666         }
2667         list_for_each_entry(sdata, &local->interfaces, list) {
2668                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2669                         continue;
2670                 ieee80211_recalc_txpower(sdata, update_txp_type);
2671         }
2672         mutex_unlock(&local->iflist_mtx);
2673
2674         if (has_monitor) {
2675                 sdata = rtnl_dereference(local->monitor_sdata);
2676                 if (sdata) {
2677                         sdata->user_power_level = local->user_power_level;
2678                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2679                                 update_txp_type = true;
2680                         sdata->vif.bss_conf.txpower_type = txp_type;
2681
2682                         ieee80211_recalc_txpower(sdata, update_txp_type);
2683                 }
2684         }
2685
2686         return 0;
2687 }
2688
2689 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2690                                   struct wireless_dev *wdev,
2691                                   int *dbm)
2692 {
2693         struct ieee80211_local *local = wiphy_priv(wiphy);
2694         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2695
2696         if (local->ops->get_txpower)
2697                 return drv_get_txpower(local, sdata, dbm);
2698
2699         if (!local->use_chanctx)
2700                 *dbm = local->hw.conf.power_level;
2701         else
2702                 *dbm = sdata->vif.bss_conf.txpower;
2703
2704         return 0;
2705 }
2706
2707 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2708                                   const u8 *addr)
2709 {
2710         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2711
2712         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2713
2714         return 0;
2715 }
2716
2717 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2718 {
2719         struct ieee80211_local *local = wiphy_priv(wiphy);
2720
2721         drv_rfkill_poll(local);
2722 }
2723
2724 #ifdef CONFIG_NL80211_TESTMODE
2725 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2726                                   struct wireless_dev *wdev,
2727                                   void *data, int len)
2728 {
2729         struct ieee80211_local *local = wiphy_priv(wiphy);
2730         struct ieee80211_vif *vif = NULL;
2731
2732         if (!local->ops->testmode_cmd)
2733                 return -EOPNOTSUPP;
2734
2735         if (wdev) {
2736                 struct ieee80211_sub_if_data *sdata;
2737
2738                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2739                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2740                         vif = &sdata->vif;
2741         }
2742
2743         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2744 }
2745
2746 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2747                                    struct sk_buff *skb,
2748                                    struct netlink_callback *cb,
2749                                    void *data, int len)
2750 {
2751         struct ieee80211_local *local = wiphy_priv(wiphy);
2752
2753         if (!local->ops->testmode_dump)
2754                 return -EOPNOTSUPP;
2755
2756         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2757 }
2758 #endif
2759
2760 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2761                                  enum ieee80211_smps_mode smps_mode)
2762 {
2763         const u8 *ap;
2764         enum ieee80211_smps_mode old_req;
2765         int err;
2766         struct sta_info *sta;
2767         bool tdls_peer_found = false;
2768
2769         lockdep_assert_held(&sdata->wdev.mtx);
2770
2771         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2772                 return -EINVAL;
2773
2774         old_req = sdata->u.mgd.req_smps;
2775         sdata->u.mgd.req_smps = smps_mode;
2776
2777         if (old_req == smps_mode &&
2778             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2779                 return 0;
2780
2781         /*
2782          * If not associated, or current association is not an HT
2783          * association, there's no need to do anything, just store
2784          * the new value until we associate.
2785          */
2786         if (!sdata->u.mgd.associated ||
2787             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2788                 return 0;
2789
2790         ap = sdata->u.mgd.associated->bssid;
2791
2792         rcu_read_lock();
2793         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2794                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2795                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2796                         continue;
2797
2798                 tdls_peer_found = true;
2799                 break;
2800         }
2801         rcu_read_unlock();
2802
2803         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2804                 if (tdls_peer_found || !sdata->u.mgd.powersave)
2805                         smps_mode = IEEE80211_SMPS_OFF;
2806                 else
2807                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2808         }
2809
2810         /* send SM PS frame to AP */
2811         err = ieee80211_send_smps_action(sdata, smps_mode,
2812                                          ap, ap);
2813         if (err)
2814                 sdata->u.mgd.req_smps = old_req;
2815         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2816                 ieee80211_teardown_tdls_peers(sdata);
2817
2818         return err;
2819 }
2820
2821 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2822                                     bool enabled, int timeout)
2823 {
2824         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2825         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2826
2827         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2828                 return -EOPNOTSUPP;
2829
2830         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2831                 return -EOPNOTSUPP;
2832
2833         if (enabled == sdata->u.mgd.powersave &&
2834             timeout == local->dynamic_ps_forced_timeout)
2835                 return 0;
2836
2837         sdata->u.mgd.powersave = enabled;
2838         local->dynamic_ps_forced_timeout = timeout;
2839
2840         /* no change, but if automatic follow powersave */
2841         sdata_lock(sdata);
2842         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2843         sdata_unlock(sdata);
2844
2845         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2846                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2847
2848         ieee80211_recalc_ps(local);
2849         ieee80211_recalc_ps_vif(sdata);
2850         ieee80211_check_fast_rx_iface(sdata);
2851
2852         return 0;
2853 }
2854
2855 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2856                                          struct net_device *dev,
2857                                          s32 rssi_thold, u32 rssi_hyst)
2858 {
2859         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2860         struct ieee80211_vif *vif = &sdata->vif;
2861         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2862
2863         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2864             rssi_hyst == bss_conf->cqm_rssi_hyst)
2865                 return 0;
2866
2867         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2868             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2869                 return -EOPNOTSUPP;
2870
2871         bss_conf->cqm_rssi_thold = rssi_thold;
2872         bss_conf->cqm_rssi_hyst = rssi_hyst;
2873         bss_conf->cqm_rssi_low = 0;
2874         bss_conf->cqm_rssi_high = 0;
2875         sdata->u.mgd.last_cqm_event_signal = 0;
2876
2877         /* tell the driver upon association, unless already associated */
2878         if (sdata->u.mgd.associated &&
2879             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2880                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2881
2882         return 0;
2883 }
2884
2885 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2886                                                struct net_device *dev,
2887                                                s32 rssi_low, s32 rssi_high)
2888 {
2889         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2890         struct ieee80211_vif *vif = &sdata->vif;
2891         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2892
2893         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2894                 return -EOPNOTSUPP;
2895
2896         bss_conf->cqm_rssi_low = rssi_low;
2897         bss_conf->cqm_rssi_high = rssi_high;
2898         bss_conf->cqm_rssi_thold = 0;
2899         bss_conf->cqm_rssi_hyst = 0;
2900         sdata->u.mgd.last_cqm_event_signal = 0;
2901
2902         /* tell the driver upon association, unless already associated */
2903         if (sdata->u.mgd.associated &&
2904             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2905                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2906
2907         return 0;
2908 }
2909
2910 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2911                                       struct net_device *dev,
2912                                       const u8 *addr,
2913                                       const struct cfg80211_bitrate_mask *mask)
2914 {
2915         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2916         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2917         int i, ret;
2918
2919         if (!ieee80211_sdata_running(sdata))
2920                 return -ENETDOWN;
2921
2922         /*
2923          * If active validate the setting and reject it if it doesn't leave
2924          * at least one basic rate usable, since we really have to be able
2925          * to send something, and if we're an AP we have to be able to do
2926          * so at a basic rate so that all clients can receive it.
2927          */
2928         if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2929             sdata->vif.bss_conf.chandef.chan) {
2930                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2931                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2932
2933                 if (!(mask->control[band].legacy & basic_rates))
2934                         return -EINVAL;
2935         }
2936
2937         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2938                 ret = drv_set_bitrate_mask(local, sdata, mask);
2939                 if (ret)
2940                         return ret;
2941         }
2942
2943         for (i = 0; i < NUM_NL80211_BANDS; i++) {
2944                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2945                 int j;
2946
2947                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2948                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2949                        sizeof(mask->control[i].ht_mcs));
2950                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2951                        mask->control[i].vht_mcs,
2952                        sizeof(mask->control[i].vht_mcs));
2953
2954                 sdata->rc_has_mcs_mask[i] = false;
2955                 sdata->rc_has_vht_mcs_mask[i] = false;
2956                 if (!sband)
2957                         continue;
2958
2959                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2960                         if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2961                                 sdata->rc_has_mcs_mask[i] = true;
2962                                 break;
2963                         }
2964                 }
2965
2966                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2967                         if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2968                                 sdata->rc_has_vht_mcs_mask[i] = true;
2969                                 break;
2970                         }
2971                 }
2972         }
2973
2974         return 0;
2975 }
2976
2977 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2978                                            struct net_device *dev,
2979                                            struct cfg80211_chan_def *chandef,
2980                                            u32 cac_time_ms)
2981 {
2982         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2983         struct ieee80211_local *local = sdata->local;
2984         int err;
2985
2986         mutex_lock(&local->mtx);
2987         if (!list_empty(&local->roc_list) || local->scanning) {
2988                 err = -EBUSY;
2989                 goto out_unlock;
2990         }
2991
2992         /* whatever, but channel contexts should not complain about that one */
2993         sdata->smps_mode = IEEE80211_SMPS_OFF;
2994         sdata->needed_rx_chains = local->rx_chains;
2995
2996         err = ieee80211_vif_use_channel(sdata, chandef,
2997                                         IEEE80211_CHANCTX_SHARED);
2998         if (err)
2999                 goto out_unlock;
3000
3001         ieee80211_queue_delayed_work(&sdata->local->hw,
3002                                      &sdata->dfs_cac_timer_work,
3003                                      msecs_to_jiffies(cac_time_ms));
3004
3005  out_unlock:
3006         mutex_unlock(&local->mtx);
3007         return err;
3008 }
3009
3010 static void ieee80211_end_cac(struct wiphy *wiphy,
3011                               struct net_device *dev)
3012 {
3013         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3014         struct ieee80211_local *local = sdata->local;
3015
3016         mutex_lock(&local->mtx);
3017         list_for_each_entry(sdata, &local->interfaces, list) {
3018                 /* it might be waiting for the local->mtx, but then
3019                  * by the time it gets it, sdata->wdev.cac_started
3020                  * will no longer be true
3021                  */
3022                 cancel_delayed_work(&sdata->dfs_cac_timer_work);
3023
3024                 if (sdata->wdev.cac_started) {
3025                         ieee80211_vif_release_channel(sdata);
3026                         sdata->wdev.cac_started = false;
3027                 }
3028         }
3029         mutex_unlock(&local->mtx);
3030 }
3031
3032 static struct cfg80211_beacon_data *
3033 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3034 {
3035         struct cfg80211_beacon_data *new_beacon;
3036         u8 *pos;
3037         int len;
3038
3039         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3040               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3041               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3042
3043         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3044         if (!new_beacon)
3045                 return NULL;
3046
3047         pos = (u8 *)(new_beacon + 1);
3048         if (beacon->head_len) {
3049                 new_beacon->head_len = beacon->head_len;
3050                 new_beacon->head = pos;
3051                 memcpy(pos, beacon->head, beacon->head_len);
3052                 pos += beacon->head_len;
3053         }
3054         if (beacon->tail_len) {
3055                 new_beacon->tail_len = beacon->tail_len;
3056                 new_beacon->tail = pos;
3057                 memcpy(pos, beacon->tail, beacon->tail_len);
3058                 pos += beacon->tail_len;
3059         }
3060         if (beacon->beacon_ies_len) {
3061                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3062                 new_beacon->beacon_ies = pos;
3063                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3064                 pos += beacon->beacon_ies_len;
3065         }
3066         if (beacon->proberesp_ies_len) {
3067                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3068                 new_beacon->proberesp_ies = pos;
3069                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3070                 pos += beacon->proberesp_ies_len;
3071         }
3072         if (beacon->assocresp_ies_len) {
3073                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3074                 new_beacon->assocresp_ies = pos;
3075                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3076                 pos += beacon->assocresp_ies_len;
3077         }
3078         if (beacon->probe_resp_len) {
3079                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3080                 new_beacon->probe_resp = pos;
3081                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3082                 pos += beacon->probe_resp_len;
3083         }
3084
3085         /* might copy -1, meaning no changes requested */
3086         new_beacon->ftm_responder = beacon->ftm_responder;
3087         if (beacon->lci) {
3088                 new_beacon->lci_len = beacon->lci_len;
3089                 new_beacon->lci = pos;
3090                 memcpy(pos, beacon->lci, beacon->lci_len);
3091                 pos += beacon->lci_len;
3092         }
3093         if (beacon->civicloc) {
3094                 new_beacon->civicloc_len = beacon->civicloc_len;
3095                 new_beacon->civicloc = pos;
3096                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3097                 pos += beacon->civicloc_len;
3098         }
3099
3100         return new_beacon;
3101 }
3102
3103 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3104 {
3105         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3106
3107         ieee80211_queue_work(&sdata->local->hw,
3108                              &sdata->csa_finalize_work);
3109 }
3110 EXPORT_SYMBOL(ieee80211_csa_finish);
3111
3112 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3113                                           u32 *changed)
3114 {
3115         int err;
3116
3117         switch (sdata->vif.type) {
3118         case NL80211_IFTYPE_AP:
3119                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3120                                               NULL);
3121                 kfree(sdata->u.ap.next_beacon);
3122                 sdata->u.ap.next_beacon = NULL;
3123
3124                 if (err < 0)
3125                         return err;
3126                 *changed |= err;
3127                 break;
3128         case NL80211_IFTYPE_ADHOC:
3129                 err = ieee80211_ibss_finish_csa(sdata);
3130                 if (err < 0)
3131                         return err;
3132                 *changed |= err;
3133                 break;
3134 #ifdef CONFIG_MAC80211_MESH
3135         case NL80211_IFTYPE_MESH_POINT:
3136                 err = ieee80211_mesh_finish_csa(sdata);
3137                 if (err < 0)
3138                         return err;
3139                 *changed |= err;
3140                 break;
3141 #endif
3142         default:
3143                 WARN_ON(1);
3144                 return -EINVAL;
3145         }
3146
3147         return 0;
3148 }
3149
3150 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3151 {
3152         struct ieee80211_local *local = sdata->local;
3153         u32 changed = 0;
3154         int err;
3155
3156         sdata_assert_lock(sdata);
3157         lockdep_assert_held(&local->mtx);
3158         lockdep_assert_held(&local->chanctx_mtx);
3159
3160         /*
3161          * using reservation isn't immediate as it may be deferred until later
3162          * with multi-vif. once reservation is complete it will re-schedule the
3163          * work with no reserved_chanctx so verify chandef to check if it
3164          * completed successfully
3165          */
3166
3167         if (sdata->reserved_chanctx) {
3168                 /*
3169                  * with multi-vif csa driver may call ieee80211_csa_finish()
3170                  * many times while waiting for other interfaces to use their
3171                  * reservations
3172                  */
3173                 if (sdata->reserved_ready)
3174                         return 0;
3175
3176                 return ieee80211_vif_use_reserved_context(sdata);
3177         }
3178
3179         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3180                                         &sdata->csa_chandef))
3181                 return -EINVAL;
3182
3183         sdata->vif.csa_active = false;
3184
3185         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3186         if (err)
3187                 return err;
3188
3189         ieee80211_bss_info_change_notify(sdata, changed);
3190
3191         if (sdata->csa_block_tx) {
3192                 ieee80211_wake_vif_queues(local, sdata,
3193                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3194                 sdata->csa_block_tx = false;
3195         }
3196
3197         err = drv_post_channel_switch(sdata);
3198         if (err)
3199                 return err;
3200
3201         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3202
3203         return 0;
3204 }
3205
3206 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3207 {
3208         if (__ieee80211_csa_finalize(sdata)) {
3209                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3210                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3211                                     GFP_KERNEL);
3212         }
3213 }
3214
3215 void ieee80211_csa_finalize_work(struct work_struct *work)
3216 {
3217         struct ieee80211_sub_if_data *sdata =
3218                 container_of(work, struct ieee80211_sub_if_data,
3219                              csa_finalize_work);
3220         struct ieee80211_local *local = sdata->local;
3221
3222         sdata_lock(sdata);
3223         mutex_lock(&local->mtx);
3224         mutex_lock(&local->chanctx_mtx);
3225
3226         /* AP might have been stopped while waiting for the lock. */
3227         if (!sdata->vif.csa_active)
3228                 goto unlock;
3229
3230         if (!ieee80211_sdata_running(sdata))
3231                 goto unlock;
3232
3233         ieee80211_csa_finalize(sdata);
3234
3235 unlock:
3236         mutex_unlock(&local->chanctx_mtx);
3237         mutex_unlock(&local->mtx);
3238         sdata_unlock(sdata);
3239 }
3240
3241 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3242                                     struct cfg80211_csa_settings *params,
3243                                     u32 *changed)
3244 {
3245         struct ieee80211_csa_settings csa = {};
3246         int err;
3247
3248         switch (sdata->vif.type) {
3249         case NL80211_IFTYPE_AP:
3250                 sdata->u.ap.next_beacon =
3251                         cfg80211_beacon_dup(&params->beacon_after);
3252                 if (!sdata->u.ap.next_beacon)
3253                         return -ENOMEM;
3254
3255                 /*
3256                  * With a count of 0, we don't have to wait for any
3257                  * TBTT before switching, so complete the CSA
3258                  * immediately.  In theory, with a count == 1 we
3259                  * should delay the switch until just before the next
3260                  * TBTT, but that would complicate things so we switch
3261                  * immediately too.  If we would delay the switch
3262                  * until the next TBTT, we would have to set the probe
3263                  * response here.
3264                  *
3265                  * TODO: A channel switch with count <= 1 without
3266                  * sending a CSA action frame is kind of useless,
3267                  * because the clients won't know we're changing
3268                  * channels.  The action frame must be implemented
3269                  * either here or in the userspace.
3270                  */
3271                 if (params->count <= 1)
3272                         break;
3273
3274                 if ((params->n_counter_offsets_beacon >
3275                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3276                     (params->n_counter_offsets_presp >
3277                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
3278                         return -EINVAL;
3279
3280                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3281                 csa.counter_offsets_presp = params->counter_offsets_presp;
3282                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3283                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3284                 csa.count = params->count;
3285
3286                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3287                 if (err < 0) {
3288                         kfree(sdata->u.ap.next_beacon);
3289                         return err;
3290                 }
3291                 *changed |= err;
3292
3293                 break;
3294         case NL80211_IFTYPE_ADHOC:
3295                 if (!sdata->vif.bss_conf.ibss_joined)
3296                         return -EINVAL;
3297
3298                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3299                         return -EINVAL;
3300
3301                 switch (params->chandef.width) {
3302                 case NL80211_CHAN_WIDTH_40:
3303                         if (cfg80211_get_chandef_type(&params->chandef) !=
3304                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3305                                 return -EINVAL;
3306                 case NL80211_CHAN_WIDTH_5:
3307                 case NL80211_CHAN_WIDTH_10:
3308                 case NL80211_CHAN_WIDTH_20_NOHT:
3309                 case NL80211_CHAN_WIDTH_20:
3310                         break;
3311                 default:
3312                         return -EINVAL;
3313                 }
3314
3315                 /* changes into another band are not supported */
3316                 if (sdata->u.ibss.chandef.chan->band !=
3317                     params->chandef.chan->band)
3318                         return -EINVAL;
3319
3320                 /* see comments in the NL80211_IFTYPE_AP block */
3321                 if (params->count > 1) {
3322                         err = ieee80211_ibss_csa_beacon(sdata, params);
3323                         if (err < 0)
3324                                 return err;
3325                         *changed |= err;
3326                 }
3327
3328                 ieee80211_send_action_csa(sdata, params);
3329
3330                 break;
3331 #ifdef CONFIG_MAC80211_MESH
3332         case NL80211_IFTYPE_MESH_POINT: {
3333                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3334
3335                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3336                         return -EINVAL;
3337
3338                 /* changes into another band are not supported */
3339                 if (sdata->vif.bss_conf.chandef.chan->band !=
3340                     params->chandef.chan->band)
3341                         return -EINVAL;
3342
3343                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3344                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3345                         if (!ifmsh->pre_value)
3346                                 ifmsh->pre_value = 1;
3347                         else
3348                                 ifmsh->pre_value++;
3349                 }
3350
3351                 /* see comments in the NL80211_IFTYPE_AP block */
3352                 if (params->count > 1) {
3353                         err = ieee80211_mesh_csa_beacon(sdata, params);
3354                         if (err < 0) {
3355                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3356                                 return err;
3357                         }
3358                         *changed |= err;
3359                 }
3360
3361                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3362                         ieee80211_send_action_csa(sdata, params);
3363
3364                 break;
3365                 }
3366 #endif
3367         default:
3368                 return -EOPNOTSUPP;
3369         }
3370
3371         return 0;
3372 }
3373
3374 static int
3375 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3376                            struct cfg80211_csa_settings *params)
3377 {
3378         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3379         struct ieee80211_local *local = sdata->local;
3380         struct ieee80211_channel_switch ch_switch;
3381         struct ieee80211_chanctx_conf *conf;
3382         struct ieee80211_chanctx *chanctx;
3383         u32 changed = 0;
3384         int err;
3385
3386         sdata_assert_lock(sdata);
3387         lockdep_assert_held(&local->mtx);
3388
3389         if (!list_empty(&local->roc_list) || local->scanning)
3390                 return -EBUSY;
3391
3392         if (sdata->wdev.cac_started)
3393                 return -EBUSY;
3394
3395         if (cfg80211_chandef_identical(&params->chandef,
3396                                        &sdata->vif.bss_conf.chandef))
3397                 return -EINVAL;
3398
3399         /* don't allow another channel switch if one is already active. */
3400         if (sdata->vif.csa_active)
3401                 return -EBUSY;
3402
3403         mutex_lock(&local->chanctx_mtx);
3404         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3405                                          lockdep_is_held(&local->chanctx_mtx));
3406         if (!conf) {
3407                 err = -EBUSY;
3408                 goto out;
3409         }
3410
3411         if (params->chandef.chan->freq_offset) {
3412                 /* this may work, but is untested */
3413                 err = -EOPNOTSUPP;
3414                 goto out;
3415         }
3416
3417         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3418
3419         ch_switch.timestamp = 0;
3420         ch_switch.device_timestamp = 0;
3421         ch_switch.block_tx = params->block_tx;
3422         ch_switch.chandef = params->chandef;
3423         ch_switch.count = params->count;
3424
3425         err = drv_pre_channel_switch(sdata, &ch_switch);
3426         if (err)
3427                 goto out;
3428
3429         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3430                                             chanctx->mode,
3431                                             params->radar_required);
3432         if (err)
3433                 goto out;
3434
3435         /* if reservation is invalid then this will fail */
3436         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3437         if (err) {
3438                 ieee80211_vif_unreserve_chanctx(sdata);
3439                 goto out;
3440         }
3441
3442         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3443         if (err) {
3444                 ieee80211_vif_unreserve_chanctx(sdata);
3445                 goto out;
3446         }
3447
3448         sdata->csa_chandef = params->chandef;
3449         sdata->csa_block_tx = params->block_tx;
3450         sdata->vif.csa_active = true;
3451
3452         if (sdata->csa_block_tx)
3453                 ieee80211_stop_vif_queues(local, sdata,
3454                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3455
3456         cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3457                                           params->count);
3458
3459         if (changed) {
3460                 ieee80211_bss_info_change_notify(sdata, changed);
3461                 drv_channel_switch_beacon(sdata, &params->chandef);
3462         } else {
3463                 /* if the beacon didn't change, we can finalize immediately */
3464                 ieee80211_csa_finalize(sdata);
3465         }
3466
3467 out:
3468         mutex_unlock(&local->chanctx_mtx);
3469         return err;
3470 }
3471
3472 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3473                              struct cfg80211_csa_settings *params)
3474 {
3475         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3476         struct ieee80211_local *local = sdata->local;
3477         int err;
3478
3479         mutex_lock(&local->mtx);
3480         err = __ieee80211_channel_switch(wiphy, dev, params);
3481         mutex_unlock(&local->mtx);
3482
3483         return err;
3484 }
3485
3486 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3487 {
3488         lockdep_assert_held(&local->mtx);
3489
3490         local->roc_cookie_counter++;
3491
3492         /* wow, you wrapped 64 bits ... more likely a bug */
3493         if (WARN_ON(local->roc_cookie_counter == 0))
3494                 local->roc_cookie_counter++;
3495
3496         return local->roc_cookie_counter;
3497 }
3498
3499 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3500                              u64 *cookie, gfp_t gfp)
3501 {
3502         unsigned long spin_flags;
3503         struct sk_buff *ack_skb;
3504         int id;
3505
3506         ack_skb = skb_copy(skb, gfp);
3507         if (!ack_skb)
3508                 return -ENOMEM;
3509
3510         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3511         id = idr_alloc(&local->ack_status_frames, ack_skb,
3512                        1, 0x2000, GFP_ATOMIC);
3513         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3514
3515         if (id < 0) {
3516                 kfree_skb(ack_skb);
3517                 return -ENOMEM;
3518         }
3519
3520         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3521
3522         *cookie = ieee80211_mgmt_tx_cookie(local);
3523         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3524
3525         return 0;
3526 }
3527
3528 static void
3529 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3530                                           struct wireless_dev *wdev,
3531                                           struct mgmt_frame_regs *upd)
3532 {
3533         struct ieee80211_local *local = wiphy_priv(wiphy);
3534         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3535         u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3536         u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3537         bool global_change, intf_change;
3538
3539         global_change =
3540                 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3541                 (local->rx_mcast_action_reg !=
3542                  !!(upd->global_mcast_stypes & action_mask));
3543         local->probe_req_reg = upd->global_stypes & preq_mask;
3544         local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3545
3546         intf_change = (sdata->vif.probe_req_reg !=
3547                        !!(upd->interface_stypes & preq_mask)) ||
3548                 (sdata->vif.rx_mcast_action_reg !=
3549                  !!(upd->interface_mcast_stypes & action_mask));
3550         sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3551         sdata->vif.rx_mcast_action_reg =
3552                 upd->interface_mcast_stypes & action_mask;
3553
3554         if (!local->open_count)
3555                 return;
3556
3557         if (intf_change && ieee80211_sdata_running(sdata))
3558                 drv_config_iface_filter(local, sdata,
3559                                         sdata->vif.probe_req_reg ?
3560                                                 FIF_PROBE_REQ : 0,
3561                                         FIF_PROBE_REQ);
3562
3563         if (global_change)
3564                 ieee80211_configure_filter(local);
3565 }
3566
3567 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3568 {
3569         struct ieee80211_local *local = wiphy_priv(wiphy);
3570
3571         if (local->started)
3572                 return -EOPNOTSUPP;
3573
3574         return drv_set_antenna(local, tx_ant, rx_ant);
3575 }
3576
3577 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3578 {
3579         struct ieee80211_local *local = wiphy_priv(wiphy);
3580
3581         return drv_get_antenna(local, tx_ant, rx_ant);
3582 }
3583
3584 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3585                                     struct net_device *dev,
3586                                     struct cfg80211_gtk_rekey_data *data)
3587 {
3588         struct ieee80211_local *local = wiphy_priv(wiphy);
3589         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3590
3591         if (!local->ops->set_rekey_data)
3592                 return -EOPNOTSUPP;
3593
3594         drv_set_rekey_data(local, sdata, data);
3595
3596         return 0;
3597 }
3598
3599 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3600                                   const u8 *peer, u64 *cookie)
3601 {
3602         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3603         struct ieee80211_local *local = sdata->local;
3604         struct ieee80211_qos_hdr *nullfunc;
3605         struct sk_buff *skb;
3606         int size = sizeof(*nullfunc);
3607         __le16 fc;
3608         bool qos;
3609         struct ieee80211_tx_info *info;
3610         struct sta_info *sta;
3611         struct ieee80211_chanctx_conf *chanctx_conf;
3612         enum nl80211_band band;
3613         int ret;
3614
3615         /* the lock is needed to assign the cookie later */
3616         mutex_lock(&local->mtx);
3617
3618         rcu_read_lock();
3619         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3620         if (WARN_ON(!chanctx_conf)) {
3621                 ret = -EINVAL;
3622                 goto unlock;
3623         }
3624         band = chanctx_conf->def.chan->band;
3625         sta = sta_info_get_bss(sdata, peer);
3626         if (sta) {
3627                 qos = sta->sta.wme;
3628         } else {
3629                 ret = -ENOLINK;
3630                 goto unlock;
3631         }
3632
3633         if (qos) {
3634                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3635                                  IEEE80211_STYPE_QOS_NULLFUNC |
3636                                  IEEE80211_FCTL_FROMDS);
3637         } else {
3638                 size -= 2;
3639                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3640                                  IEEE80211_STYPE_NULLFUNC |
3641                                  IEEE80211_FCTL_FROMDS);
3642         }
3643
3644         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3645         if (!skb) {
3646                 ret = -ENOMEM;
3647                 goto unlock;
3648         }
3649
3650         skb->dev = dev;
3651
3652         skb_reserve(skb, local->hw.extra_tx_headroom);
3653
3654         nullfunc = skb_put(skb, size);
3655         nullfunc->frame_control = fc;
3656         nullfunc->duration_id = 0;
3657         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3658         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3659         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3660         nullfunc->seq_ctrl = 0;
3661
3662         info = IEEE80211_SKB_CB(skb);
3663
3664         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3665                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3666         info->band = band;
3667
3668         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3669         skb->priority = 7;
3670         if (qos)
3671                 nullfunc->qos_ctrl = cpu_to_le16(7);
3672
3673         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3674         if (ret) {
3675                 kfree_skb(skb);
3676                 goto unlock;
3677         }
3678
3679         local_bh_disable();
3680         ieee80211_xmit(sdata, sta, skb);
3681         local_bh_enable();
3682
3683         ret = 0;
3684 unlock:
3685         rcu_read_unlock();
3686         mutex_unlock(&local->mtx);
3687
3688         return ret;
3689 }
3690
3691 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3692                                      struct wireless_dev *wdev,
3693                                      struct cfg80211_chan_def *chandef)
3694 {
3695         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3696         struct ieee80211_local *local = wiphy_priv(wiphy);
3697         struct ieee80211_chanctx_conf *chanctx_conf;
3698         int ret = -ENODATA;
3699
3700         rcu_read_lock();
3701         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3702         if (chanctx_conf) {
3703                 *chandef = sdata->vif.bss_conf.chandef;
3704                 ret = 0;
3705         } else if (local->open_count > 0 &&
3706                    local->open_count == local->monitors &&
3707                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3708                 if (local->use_chanctx)
3709                         *chandef = local->monitor_chandef;
3710                 else
3711                         *chandef = local->_oper_chandef;
3712                 ret = 0;
3713         }
3714         rcu_read_unlock();
3715
3716         return ret;
3717 }
3718
3719 #ifdef CONFIG_PM
3720 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3721 {
3722         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3723 }
3724 #endif
3725
3726 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3727                                  struct net_device *dev,
3728                                  struct cfg80211_qos_map *qos_map)
3729 {
3730         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3731         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3732
3733         if (qos_map) {
3734                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3735                 if (!new_qos_map)
3736                         return -ENOMEM;
3737                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3738         } else {
3739                 /* A NULL qos_map was passed to disable QoS mapping */
3740                 new_qos_map = NULL;
3741         }
3742
3743         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3744         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3745         if (old_qos_map)
3746                 kfree_rcu(old_qos_map, rcu_head);
3747
3748         return 0;
3749 }
3750
3751 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3752                                       struct net_device *dev,
3753                                       struct cfg80211_chan_def *chandef)
3754 {
3755         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3756         int ret;
3757         u32 changed = 0;
3758
3759         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3760         if (ret == 0)
3761                 ieee80211_bss_info_change_notify(sdata, changed);
3762
3763         return ret;
3764 }
3765
3766 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3767                                u8 tsid, const u8 *peer, u8 up,
3768                                u16 admitted_time)
3769 {
3770         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3771         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3772         int ac = ieee802_1d_to_ac[up];
3773
3774         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3775                 return -EOPNOTSUPP;
3776
3777         if (!(sdata->wmm_acm & BIT(up)))
3778                 return -EINVAL;
3779
3780         if (ifmgd->tx_tspec[ac].admitted_time)
3781                 return -EBUSY;
3782
3783         if (admitted_time) {
3784                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3785                 ifmgd->tx_tspec[ac].tsid = tsid;
3786                 ifmgd->tx_tspec[ac].up = up;
3787         }
3788
3789         return 0;
3790 }
3791
3792 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3793                                u8 tsid, const u8 *peer)
3794 {
3795         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3796         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3797         struct ieee80211_local *local = wiphy_priv(wiphy);
3798         int ac;
3799
3800         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3801                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3802
3803                 /* skip unused entries */
3804                 if (!tx_tspec->admitted_time)
3805                         continue;
3806
3807                 if (tx_tspec->tsid != tsid)
3808                         continue;
3809
3810                 /* due to this new packets will be reassigned to non-ACM ACs */
3811                 tx_tspec->up = -1;
3812
3813                 /* Make sure that all packets have been sent to avoid to
3814                  * restore the QoS params on packets that are still on the
3815                  * queues.
3816                  */
3817                 synchronize_net();
3818                 ieee80211_flush_queues(local, sdata, false);
3819
3820                 /* restore the normal QoS parameters
3821                  * (unconditionally to avoid races)
3822                  */
3823                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3824                 tx_tspec->downgraded = false;
3825                 ieee80211_sta_handle_tspec_ac_params(sdata);
3826
3827                 /* finally clear all the data */
3828                 memset(tx_tspec, 0, sizeof(*tx_tspec));
3829
3830                 return 0;
3831         }
3832
3833         return -ENOENT;
3834 }
3835
3836 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3837                                    u8 inst_id,
3838                                    enum nl80211_nan_func_term_reason reason,
3839                                    gfp_t gfp)
3840 {
3841         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3842         struct cfg80211_nan_func *func;
3843         u64 cookie;
3844
3845         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3846                 return;
3847
3848         spin_lock_bh(&sdata->u.nan.func_lock);
3849
3850         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3851         if (WARN_ON(!func)) {
3852                 spin_unlock_bh(&sdata->u.nan.func_lock);
3853                 return;
3854         }
3855
3856         cookie = func->cookie;
3857         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3858
3859         spin_unlock_bh(&sdata->u.nan.func_lock);
3860
3861         cfg80211_free_nan_func(func);
3862
3863         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3864                                      reason, cookie, gfp);
3865 }
3866 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3867
3868 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3869                               struct cfg80211_nan_match_params *match,
3870                               gfp_t gfp)
3871 {
3872         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3873         struct cfg80211_nan_func *func;
3874
3875         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3876                 return;
3877
3878         spin_lock_bh(&sdata->u.nan.func_lock);
3879
3880         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3881         if (WARN_ON(!func)) {
3882                 spin_unlock_bh(&sdata->u.nan.func_lock);
3883                 return;
3884         }
3885         match->cookie = func->cookie;
3886
3887         spin_unlock_bh(&sdata->u.nan.func_lock);
3888
3889         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3890 }
3891 EXPORT_SYMBOL(ieee80211_nan_func_match);
3892
3893 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3894                                               struct net_device *dev,
3895                                               const bool enabled)
3896 {
3897         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3898
3899         sdata->u.ap.multicast_to_unicast = enabled;
3900
3901         return 0;
3902 }
3903
3904 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3905                               struct txq_info *txqi)
3906 {
3907         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3908                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3909                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3910         }
3911
3912         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3913                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3914                 txqstats->backlog_packets = txqi->tin.backlog_packets;
3915         }
3916
3917         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3918                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3919                 txqstats->flows = txqi->tin.flows;
3920         }
3921
3922         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3923                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3924                 txqstats->drops = txqi->cstats.drop_count;
3925         }
3926
3927         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3928                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3929                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3930         }
3931
3932         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3933                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3934                 txqstats->overlimit = txqi->tin.overlimit;
3935         }
3936
3937         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3938                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3939                 txqstats->collisions = txqi->tin.collisions;
3940         }
3941
3942         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3943                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3944                 txqstats->tx_bytes = txqi->tin.tx_bytes;
3945         }
3946
3947         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3948                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3949                 txqstats->tx_packets = txqi->tin.tx_packets;
3950         }
3951 }
3952
3953 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3954                                    struct wireless_dev *wdev,
3955                                    struct cfg80211_txq_stats *txqstats)
3956 {
3957         struct ieee80211_local *local = wiphy_priv(wiphy);
3958         struct ieee80211_sub_if_data *sdata;
3959         int ret = 0;
3960
3961         if (!local->ops->wake_tx_queue)
3962                 return 1;
3963
3964         spin_lock_bh(&local->fq.lock);
3965         rcu_read_lock();
3966
3967         if (wdev) {
3968                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3969                 if (!sdata->vif.txq) {
3970                         ret = 1;
3971                         goto out;
3972                 }
3973                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3974         } else {
3975                 /* phy stats */
3976                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3977                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3978                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3979                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3980                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
3981                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3982                 txqstats->backlog_packets = local->fq.backlog;
3983                 txqstats->backlog_bytes = local->fq.memory_usage;
3984                 txqstats->overlimit = local->fq.overlimit;
3985                 txqstats->overmemory = local->fq.overmemory;
3986                 txqstats->collisions = local->fq.collisions;
3987                 txqstats->max_flows = local->fq.flows_cnt;
3988         }
3989
3990 out:
3991         rcu_read_unlock();
3992         spin_unlock_bh(&local->fq.lock);
3993
3994         return ret;
3995 }
3996
3997 static int
3998 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
3999                                   struct net_device *dev,
4000                                   struct cfg80211_ftm_responder_stats *ftm_stats)
4001 {
4002         struct ieee80211_local *local = wiphy_priv(wiphy);
4003         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4004
4005         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4006 }
4007
4008 static int
4009 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4010                      struct cfg80211_pmsr_request *request)
4011 {
4012         struct ieee80211_local *local = wiphy_priv(wiphy);
4013         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4014
4015         return drv_start_pmsr(local, sdata, request);
4016 }
4017
4018 static void
4019 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4020                      struct cfg80211_pmsr_request *request)
4021 {
4022         struct ieee80211_local *local = wiphy_priv(wiphy);
4023         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4024
4025         return drv_abort_pmsr(local, sdata, request);
4026 }
4027
4028 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4029                                     struct net_device *dev,
4030                                     struct cfg80211_tid_config *tid_conf)
4031 {
4032         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4033         struct sta_info *sta;
4034         int ret;
4035
4036         if (!sdata->local->ops->set_tid_config)
4037                 return -EOPNOTSUPP;
4038
4039         if (!tid_conf->peer)
4040                 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4041
4042         mutex_lock(&sdata->local->sta_mtx);
4043         sta = sta_info_get_bss(sdata, tid_conf->peer);
4044         if (!sta) {
4045                 mutex_unlock(&sdata->local->sta_mtx);
4046                 return -ENOENT;
4047         }
4048
4049         ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4050         mutex_unlock(&sdata->local->sta_mtx);
4051
4052         return ret;
4053 }
4054
4055 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4056                                       struct net_device *dev,
4057                                       const u8 *peer, u8 tids)
4058 {
4059         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4060         struct sta_info *sta;
4061         int ret;
4062
4063         if (!sdata->local->ops->reset_tid_config)
4064                 return -EOPNOTSUPP;
4065
4066         if (!peer)
4067                 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4068
4069         mutex_lock(&sdata->local->sta_mtx);
4070         sta = sta_info_get_bss(sdata, peer);
4071         if (!sta) {
4072                 mutex_unlock(&sdata->local->sta_mtx);
4073                 return -ENOENT;
4074         }
4075
4076         ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4077         mutex_unlock(&sdata->local->sta_mtx);
4078
4079         return ret;
4080 }
4081
4082 const struct cfg80211_ops mac80211_config_ops = {
4083         .add_virtual_intf = ieee80211_add_iface,
4084         .del_virtual_intf = ieee80211_del_iface,
4085         .change_virtual_intf = ieee80211_change_iface,
4086         .start_p2p_device = ieee80211_start_p2p_device,
4087         .stop_p2p_device = ieee80211_stop_p2p_device,
4088         .add_key = ieee80211_add_key,
4089         .del_key = ieee80211_del_key,
4090         .get_key = ieee80211_get_key,
4091         .set_default_key = ieee80211_config_default_key,
4092         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4093         .set_default_beacon_key = ieee80211_config_default_beacon_key,
4094         .start_ap = ieee80211_start_ap,
4095         .change_beacon = ieee80211_change_beacon,
4096         .stop_ap = ieee80211_stop_ap,
4097         .add_station = ieee80211_add_station,
4098         .del_station = ieee80211_del_station,
4099         .change_station = ieee80211_change_station,
4100         .get_station = ieee80211_get_station,
4101         .dump_station = ieee80211_dump_station,
4102         .dump_survey = ieee80211_dump_survey,
4103 #ifdef CONFIG_MAC80211_MESH
4104         .add_mpath = ieee80211_add_mpath,
4105         .del_mpath = ieee80211_del_mpath,
4106         .change_mpath = ieee80211_change_mpath,
4107         .get_mpath = ieee80211_get_mpath,
4108         .dump_mpath = ieee80211_dump_mpath,
4109         .get_mpp = ieee80211_get_mpp,
4110         .dump_mpp = ieee80211_dump_mpp,
4111         .update_mesh_config = ieee80211_update_mesh_config,
4112         .get_mesh_config = ieee80211_get_mesh_config,
4113         .join_mesh = ieee80211_join_mesh,
4114         .leave_mesh = ieee80211_leave_mesh,
4115 #endif
4116         .join_ocb = ieee80211_join_ocb,
4117         .leave_ocb = ieee80211_leave_ocb,
4118         .change_bss = ieee80211_change_bss,
4119         .set_txq_params = ieee80211_set_txq_params,
4120         .set_monitor_channel = ieee80211_set_monitor_channel,
4121         .suspend = ieee80211_suspend,
4122         .resume = ieee80211_resume,
4123         .scan = ieee80211_scan,
4124         .abort_scan = ieee80211_abort_scan,
4125         .sched_scan_start = ieee80211_sched_scan_start,
4126         .sched_scan_stop = ieee80211_sched_scan_stop,
4127         .auth = ieee80211_auth,
4128         .assoc = ieee80211_assoc,
4129         .deauth = ieee80211_deauth,
4130         .disassoc = ieee80211_disassoc,
4131         .join_ibss = ieee80211_join_ibss,
4132         .leave_ibss = ieee80211_leave_ibss,
4133         .set_mcast_rate = ieee80211_set_mcast_rate,
4134         .set_wiphy_params = ieee80211_set_wiphy_params,
4135         .set_tx_power = ieee80211_set_tx_power,
4136         .get_tx_power = ieee80211_get_tx_power,
4137         .set_wds_peer = ieee80211_set_wds_peer,
4138         .rfkill_poll = ieee80211_rfkill_poll,
4139         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4140         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4141         .set_power_mgmt = ieee80211_set_power_mgmt,
4142         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4143         .remain_on_channel = ieee80211_remain_on_channel,
4144         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4145         .mgmt_tx = ieee80211_mgmt_tx,
4146         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4147         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4148         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4149         .update_mgmt_frame_registrations =
4150                 ieee80211_update_mgmt_frame_registrations,
4151         .set_antenna = ieee80211_set_antenna,
4152         .get_antenna = ieee80211_get_antenna,
4153         .set_rekey_data = ieee80211_set_rekey_data,
4154         .tdls_oper = ieee80211_tdls_oper,
4155         .tdls_mgmt = ieee80211_tdls_mgmt,
4156         .tdls_channel_switch = ieee80211_tdls_channel_switch,
4157         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4158         .probe_client = ieee80211_probe_client,
4159         .set_noack_map = ieee80211_set_noack_map,
4160 #ifdef CONFIG_PM
4161         .set_wakeup = ieee80211_set_wakeup,
4162 #endif
4163         .get_channel = ieee80211_cfg_get_channel,
4164         .start_radar_detection = ieee80211_start_radar_detection,
4165         .end_cac = ieee80211_end_cac,
4166         .channel_switch = ieee80211_channel_switch,
4167         .set_qos_map = ieee80211_set_qos_map,
4168         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4169         .add_tx_ts = ieee80211_add_tx_ts,
4170         .del_tx_ts = ieee80211_del_tx_ts,
4171         .start_nan = ieee80211_start_nan,
4172         .stop_nan = ieee80211_stop_nan,
4173         .nan_change_conf = ieee80211_nan_change_conf,
4174         .add_nan_func = ieee80211_add_nan_func,
4175         .del_nan_func = ieee80211_del_nan_func,
4176         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4177         .tx_control_port = ieee80211_tx_control_port,
4178         .get_txq_stats = ieee80211_get_txq_stats,
4179         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4180         .start_pmsr = ieee80211_start_pmsr,
4181         .abort_pmsr = ieee80211_abort_pmsr,
4182         .probe_mesh_link = ieee80211_probe_mesh_link,
4183         .set_tid_config = ieee80211_set_tid_config,
4184         .reset_tid_config = ieee80211_reset_tid_config,
4185 };