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