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 assocaited */
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                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1793
1794                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1795                         ieee80211_vif_dec_num_mcast(sta->sdata);
1796
1797                 sta->sdata = vlansdata;
1798                 ieee80211_check_fast_xmit(sta);
1799
1800                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1801                         ieee80211_vif_inc_num_mcast(sta->sdata);
1802                         cfg80211_send_layer2_update(sta->sdata->dev,
1803                                                     sta->sta.addr);
1804                 }
1805         }
1806
1807         err = sta_apply_parameters(local, sta, params);
1808         if (err)
1809                 goto out_err;
1810
1811         mutex_unlock(&local->sta_mtx);
1812
1813         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1814             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1815                 ieee80211_recalc_ps(local);
1816                 ieee80211_recalc_ps_vif(sdata);
1817         }
1818
1819         return 0;
1820 out_err:
1821         mutex_unlock(&local->sta_mtx);
1822         return err;
1823 }
1824
1825 #ifdef CONFIG_MAC80211_MESH
1826 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1827                                const u8 *dst, const u8 *next_hop)
1828 {
1829         struct ieee80211_sub_if_data *sdata;
1830         struct mesh_path *mpath;
1831         struct sta_info *sta;
1832
1833         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1834
1835         rcu_read_lock();
1836         sta = sta_info_get(sdata, next_hop);
1837         if (!sta) {
1838                 rcu_read_unlock();
1839                 return -ENOENT;
1840         }
1841
1842         mpath = mesh_path_add(sdata, dst);
1843         if (IS_ERR(mpath)) {
1844                 rcu_read_unlock();
1845                 return PTR_ERR(mpath);
1846         }
1847
1848         mesh_path_fix_nexthop(mpath, sta);
1849
1850         rcu_read_unlock();
1851         return 0;
1852 }
1853
1854 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1855                                const u8 *dst)
1856 {
1857         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1858
1859         if (dst)
1860                 return mesh_path_del(sdata, dst);
1861
1862         mesh_path_flush_by_iface(sdata);
1863         return 0;
1864 }
1865
1866 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1867                                   const u8 *dst, const u8 *next_hop)
1868 {
1869         struct ieee80211_sub_if_data *sdata;
1870         struct mesh_path *mpath;
1871         struct sta_info *sta;
1872
1873         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1874
1875         rcu_read_lock();
1876
1877         sta = sta_info_get(sdata, next_hop);
1878         if (!sta) {
1879                 rcu_read_unlock();
1880                 return -ENOENT;
1881         }
1882
1883         mpath = mesh_path_lookup(sdata, dst);
1884         if (!mpath) {
1885                 rcu_read_unlock();
1886                 return -ENOENT;
1887         }
1888
1889         mesh_path_fix_nexthop(mpath, sta);
1890
1891         rcu_read_unlock();
1892         return 0;
1893 }
1894
1895 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1896                             struct mpath_info *pinfo)
1897 {
1898         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1899
1900         if (next_hop_sta)
1901                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1902         else
1903                 eth_zero_addr(next_hop);
1904
1905         memset(pinfo, 0, sizeof(*pinfo));
1906
1907         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1908
1909         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1910                         MPATH_INFO_SN |
1911                         MPATH_INFO_METRIC |
1912                         MPATH_INFO_EXPTIME |
1913                         MPATH_INFO_DISCOVERY_TIMEOUT |
1914                         MPATH_INFO_DISCOVERY_RETRIES |
1915                         MPATH_INFO_FLAGS |
1916                         MPATH_INFO_HOP_COUNT |
1917                         MPATH_INFO_PATH_CHANGE;
1918
1919         pinfo->frame_qlen = mpath->frame_queue.qlen;
1920         pinfo->sn = mpath->sn;
1921         pinfo->metric = mpath->metric;
1922         if (time_before(jiffies, mpath->exp_time))
1923                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1924         pinfo->discovery_timeout =
1925                         jiffies_to_msecs(mpath->discovery_timeout);
1926         pinfo->discovery_retries = mpath->discovery_retries;
1927         if (mpath->flags & MESH_PATH_ACTIVE)
1928                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1929         if (mpath->flags & MESH_PATH_RESOLVING)
1930                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1931         if (mpath->flags & MESH_PATH_SN_VALID)
1932                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1933         if (mpath->flags & MESH_PATH_FIXED)
1934                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1935         if (mpath->flags & MESH_PATH_RESOLVED)
1936                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1937         pinfo->hop_count = mpath->hop_count;
1938         pinfo->path_change_count = mpath->path_change_count;
1939 }
1940
1941 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1942                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1943
1944 {
1945         struct ieee80211_sub_if_data *sdata;
1946         struct mesh_path *mpath;
1947
1948         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1949
1950         rcu_read_lock();
1951         mpath = mesh_path_lookup(sdata, dst);
1952         if (!mpath) {
1953                 rcu_read_unlock();
1954                 return -ENOENT;
1955         }
1956         memcpy(dst, mpath->dst, ETH_ALEN);
1957         mpath_set_pinfo(mpath, next_hop, pinfo);
1958         rcu_read_unlock();
1959         return 0;
1960 }
1961
1962 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1963                                 int idx, u8 *dst, u8 *next_hop,
1964                                 struct mpath_info *pinfo)
1965 {
1966         struct ieee80211_sub_if_data *sdata;
1967         struct mesh_path *mpath;
1968
1969         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1970
1971         rcu_read_lock();
1972         mpath = mesh_path_lookup_by_idx(sdata, idx);
1973         if (!mpath) {
1974                 rcu_read_unlock();
1975                 return -ENOENT;
1976         }
1977         memcpy(dst, mpath->dst, ETH_ALEN);
1978         mpath_set_pinfo(mpath, next_hop, pinfo);
1979         rcu_read_unlock();
1980         return 0;
1981 }
1982
1983 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1984                           struct mpath_info *pinfo)
1985 {
1986         memset(pinfo, 0, sizeof(*pinfo));
1987         memcpy(mpp, mpath->mpp, ETH_ALEN);
1988
1989         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1990 }
1991
1992 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1993                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1994
1995 {
1996         struct ieee80211_sub_if_data *sdata;
1997         struct mesh_path *mpath;
1998
1999         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2000
2001         rcu_read_lock();
2002         mpath = mpp_path_lookup(sdata, dst);
2003         if (!mpath) {
2004                 rcu_read_unlock();
2005                 return -ENOENT;
2006         }
2007         memcpy(dst, mpath->dst, ETH_ALEN);
2008         mpp_set_pinfo(mpath, mpp, pinfo);
2009         rcu_read_unlock();
2010         return 0;
2011 }
2012
2013 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2014                               int idx, u8 *dst, u8 *mpp,
2015                               struct mpath_info *pinfo)
2016 {
2017         struct ieee80211_sub_if_data *sdata;
2018         struct mesh_path *mpath;
2019
2020         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2021
2022         rcu_read_lock();
2023         mpath = mpp_path_lookup_by_idx(sdata, idx);
2024         if (!mpath) {
2025                 rcu_read_unlock();
2026                 return -ENOENT;
2027         }
2028         memcpy(dst, mpath->dst, ETH_ALEN);
2029         mpp_set_pinfo(mpath, mpp, pinfo);
2030         rcu_read_unlock();
2031         return 0;
2032 }
2033
2034 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2035                                 struct net_device *dev,
2036                                 struct mesh_config *conf)
2037 {
2038         struct ieee80211_sub_if_data *sdata;
2039         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2040
2041         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2042         return 0;
2043 }
2044
2045 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2046 {
2047         return (mask >> (parm-1)) & 0x1;
2048 }
2049
2050 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2051                 const struct mesh_setup *setup)
2052 {
2053         u8 *new_ie;
2054         const u8 *old_ie;
2055         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2056                                         struct ieee80211_sub_if_data, u.mesh);
2057         int i;
2058
2059         /* allocate information elements */
2060         new_ie = NULL;
2061         old_ie = ifmsh->ie;
2062
2063         if (setup->ie_len) {
2064                 new_ie = kmemdup(setup->ie, setup->ie_len,
2065                                 GFP_KERNEL);
2066                 if (!new_ie)
2067                         return -ENOMEM;
2068         }
2069         ifmsh->ie_len = setup->ie_len;
2070         ifmsh->ie = new_ie;
2071         kfree(old_ie);
2072
2073         /* now copy the rest of the setup parameters */
2074         ifmsh->mesh_id_len = setup->mesh_id_len;
2075         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2076         ifmsh->mesh_sp_id = setup->sync_method;
2077         ifmsh->mesh_pp_id = setup->path_sel_proto;
2078         ifmsh->mesh_pm_id = setup->path_metric;
2079         ifmsh->user_mpm = setup->user_mpm;
2080         ifmsh->mesh_auth_id = setup->auth_id;
2081         ifmsh->security = IEEE80211_MESH_SEC_NONE;
2082         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2083         if (setup->is_authenticated)
2084                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2085         if (setup->is_secure)
2086                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2087
2088         /* mcast rate setting in Mesh Node */
2089         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2090                                                 sizeof(setup->mcast_rate));
2091         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2092
2093         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2094         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2095
2096         sdata->beacon_rate_set = false;
2097         if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2098                                     NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2099                 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2100                         sdata->beacon_rateidx_mask[i] =
2101                                 setup->beacon_rate.control[i].legacy;
2102                         if (sdata->beacon_rateidx_mask[i])
2103                                 sdata->beacon_rate_set = true;
2104                 }
2105         }
2106
2107         return 0;
2108 }
2109
2110 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2111                                         struct net_device *dev, u32 mask,
2112                                         const struct mesh_config *nconf)
2113 {
2114         struct mesh_config *conf;
2115         struct ieee80211_sub_if_data *sdata;
2116         struct ieee80211_if_mesh *ifmsh;
2117
2118         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2119         ifmsh = &sdata->u.mesh;
2120
2121         /* Set the config options which we are interested in setting */
2122         conf = &(sdata->u.mesh.mshcfg);
2123         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2124                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2125         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2126                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2127         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2128                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2129         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2130                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2131         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2132                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2133         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2134                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2135         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2136                 conf->element_ttl = nconf->element_ttl;
2137         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2138                 if (ifmsh->user_mpm)
2139                         return -EBUSY;
2140                 conf->auto_open_plinks = nconf->auto_open_plinks;
2141         }
2142         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2143                 conf->dot11MeshNbrOffsetMaxNeighbor =
2144                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2145         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2146                 conf->dot11MeshHWMPmaxPREQretries =
2147                         nconf->dot11MeshHWMPmaxPREQretries;
2148         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2149                 conf->path_refresh_time = nconf->path_refresh_time;
2150         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2151                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2152         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2153                 conf->dot11MeshHWMPactivePathTimeout =
2154                         nconf->dot11MeshHWMPactivePathTimeout;
2155         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2156                 conf->dot11MeshHWMPpreqMinInterval =
2157                         nconf->dot11MeshHWMPpreqMinInterval;
2158         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2159                 conf->dot11MeshHWMPperrMinInterval =
2160                         nconf->dot11MeshHWMPperrMinInterval;
2161         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2162                            mask))
2163                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2164                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2165         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2166                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2167                 ieee80211_mesh_root_setup(ifmsh);
2168         }
2169         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2170                 /* our current gate announcement implementation rides on root
2171                  * announcements, so require this ifmsh to also be a root node
2172                  * */
2173                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2174                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2175                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2176                         ieee80211_mesh_root_setup(ifmsh);
2177                 }
2178                 conf->dot11MeshGateAnnouncementProtocol =
2179                         nconf->dot11MeshGateAnnouncementProtocol;
2180         }
2181         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2182                 conf->dot11MeshHWMPRannInterval =
2183                         nconf->dot11MeshHWMPRannInterval;
2184         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2185                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2186         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2187                 /* our RSSI threshold implementation is supported only for
2188                  * devices that report signal in dBm.
2189                  */
2190                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2191                         return -ENOTSUPP;
2192                 conf->rssi_threshold = nconf->rssi_threshold;
2193         }
2194         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2195                 conf->ht_opmode = nconf->ht_opmode;
2196                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2197                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2198         }
2199         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2200                 conf->dot11MeshHWMPactivePathToRootTimeout =
2201                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2202         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2203                 conf->dot11MeshHWMProotInterval =
2204                         nconf->dot11MeshHWMProotInterval;
2205         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2206                 conf->dot11MeshHWMPconfirmationInterval =
2207                         nconf->dot11MeshHWMPconfirmationInterval;
2208         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2209                 conf->power_mode = nconf->power_mode;
2210                 ieee80211_mps_local_status_update(sdata);
2211         }
2212         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2213                 conf->dot11MeshAwakeWindowDuration =
2214                         nconf->dot11MeshAwakeWindowDuration;
2215         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2216                 conf->plink_timeout = nconf->plink_timeout;
2217         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2218                 conf->dot11MeshConnectedToMeshGate =
2219                         nconf->dot11MeshConnectedToMeshGate;
2220         if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2221                 conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2222         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2223                 conf->dot11MeshConnectedToAuthServer =
2224                         nconf->dot11MeshConnectedToAuthServer;
2225         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2226         return 0;
2227 }
2228
2229 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2230                                const struct mesh_config *conf,
2231                                const struct mesh_setup *setup)
2232 {
2233         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2234         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2235         int err;
2236
2237         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2238         err = copy_mesh_setup(ifmsh, setup);
2239         if (err)
2240                 return err;
2241
2242         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2243
2244         /* can mesh use other SMPS modes? */
2245         sdata->smps_mode = IEEE80211_SMPS_OFF;
2246         sdata->needed_rx_chains = sdata->local->rx_chains;
2247
2248         mutex_lock(&sdata->local->mtx);
2249         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2250                                         IEEE80211_CHANCTX_SHARED);
2251         mutex_unlock(&sdata->local->mtx);
2252         if (err)
2253                 return err;
2254
2255         return ieee80211_start_mesh(sdata);
2256 }
2257
2258 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2259 {
2260         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2261
2262         ieee80211_stop_mesh(sdata);
2263         mutex_lock(&sdata->local->mtx);
2264         ieee80211_vif_release_channel(sdata);
2265         kfree(sdata->u.mesh.ie);
2266         mutex_unlock(&sdata->local->mtx);
2267
2268         return 0;
2269 }
2270 #endif
2271
2272 static int ieee80211_change_bss(struct wiphy *wiphy,
2273                                 struct net_device *dev,
2274                                 struct bss_parameters *params)
2275 {
2276         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2277         struct ieee80211_supported_band *sband;
2278         u32 changed = 0;
2279
2280         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2281                 return -ENOENT;
2282
2283         sband = ieee80211_get_sband(sdata);
2284         if (!sband)
2285                 return -EINVAL;
2286
2287         if (params->use_cts_prot >= 0) {
2288                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2289                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2290         }
2291         if (params->use_short_preamble >= 0) {
2292                 sdata->vif.bss_conf.use_short_preamble =
2293                         params->use_short_preamble;
2294                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2295         }
2296
2297         if (!sdata->vif.bss_conf.use_short_slot &&
2298             (sband->band == NL80211_BAND_5GHZ ||
2299              sband->band == NL80211_BAND_6GHZ)) {
2300                 sdata->vif.bss_conf.use_short_slot = true;
2301                 changed |= BSS_CHANGED_ERP_SLOT;
2302         }
2303
2304         if (params->use_short_slot_time >= 0) {
2305                 sdata->vif.bss_conf.use_short_slot =
2306                         params->use_short_slot_time;
2307                 changed |= BSS_CHANGED_ERP_SLOT;
2308         }
2309
2310         if (params->basic_rates) {
2311                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2312                                          wiphy->bands[sband->band],
2313                                          params->basic_rates,
2314                                          params->basic_rates_len,
2315                                          &sdata->vif.bss_conf.basic_rates);
2316                 changed |= BSS_CHANGED_BASIC_RATES;
2317                 ieee80211_check_rate_mask(sdata);
2318         }
2319
2320         if (params->ap_isolate >= 0) {
2321                 if (params->ap_isolate)
2322                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2323                 else
2324                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2325                 ieee80211_check_fast_rx_iface(sdata);
2326         }
2327
2328         if (params->ht_opmode >= 0) {
2329                 sdata->vif.bss_conf.ht_operation_mode =
2330                         (u16) params->ht_opmode;
2331                 changed |= BSS_CHANGED_HT;
2332         }
2333
2334         if (params->p2p_ctwindow >= 0) {
2335                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2336                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2337                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2338                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2339                 changed |= BSS_CHANGED_P2P_PS;
2340         }
2341
2342         if (params->p2p_opp_ps > 0) {
2343                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2344                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2345                 changed |= BSS_CHANGED_P2P_PS;
2346         } else if (params->p2p_opp_ps == 0) {
2347                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2348                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2349                 changed |= BSS_CHANGED_P2P_PS;
2350         }
2351
2352         ieee80211_bss_info_change_notify(sdata, changed);
2353
2354         return 0;
2355 }
2356
2357 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2358                                     struct net_device *dev,
2359                                     struct ieee80211_txq_params *params)
2360 {
2361         struct ieee80211_local *local = wiphy_priv(wiphy);
2362         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2363         struct ieee80211_tx_queue_params p;
2364
2365         if (!local->ops->conf_tx)
2366                 return -EOPNOTSUPP;
2367
2368         if (local->hw.queues < IEEE80211_NUM_ACS)
2369                 return -EOPNOTSUPP;
2370
2371         memset(&p, 0, sizeof(p));
2372         p.aifs = params->aifs;
2373         p.cw_max = params->cwmax;
2374         p.cw_min = params->cwmin;
2375         p.txop = params->txop;
2376
2377         /*
2378          * Setting tx queue params disables u-apsd because it's only
2379          * called in master mode.
2380          */
2381         p.uapsd = false;
2382
2383         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2384
2385         sdata->tx_conf[params->ac] = p;
2386         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2387                 wiphy_debug(local->hw.wiphy,
2388                             "failed to set TX queue parameters for AC %d\n",
2389                             params->ac);
2390                 return -EINVAL;
2391         }
2392
2393         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2394
2395         return 0;
2396 }
2397
2398 #ifdef CONFIG_PM
2399 static int ieee80211_suspend(struct wiphy *wiphy,
2400                              struct cfg80211_wowlan *wowlan)
2401 {
2402         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2403 }
2404
2405 static int ieee80211_resume(struct wiphy *wiphy)
2406 {
2407         return __ieee80211_resume(wiphy_priv(wiphy));
2408 }
2409 #else
2410 #define ieee80211_suspend NULL
2411 #define ieee80211_resume NULL
2412 #endif
2413
2414 static int ieee80211_scan(struct wiphy *wiphy,
2415                           struct cfg80211_scan_request *req)
2416 {
2417         struct ieee80211_sub_if_data *sdata;
2418
2419         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2420
2421         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2422         case NL80211_IFTYPE_STATION:
2423         case NL80211_IFTYPE_ADHOC:
2424         case NL80211_IFTYPE_MESH_POINT:
2425         case NL80211_IFTYPE_P2P_CLIENT:
2426         case NL80211_IFTYPE_P2P_DEVICE:
2427                 break;
2428         case NL80211_IFTYPE_P2P_GO:
2429                 if (sdata->local->ops->hw_scan)
2430                         break;
2431                 /*
2432                  * FIXME: implement NoA while scanning in software,
2433                  * for now fall through to allow scanning only when
2434                  * beaconing hasn't been configured yet
2435                  */
2436                 fallthrough;
2437         case NL80211_IFTYPE_AP:
2438                 /*
2439                  * If the scan has been forced (and the driver supports
2440                  * forcing), don't care about being beaconing already.
2441                  * This will create problems to the attached stations (e.g. all
2442                  * the  frames sent while scanning on other channel will be
2443                  * lost)
2444                  */
2445                 if (sdata->u.ap.beacon &&
2446                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2447                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2448                         return -EOPNOTSUPP;
2449                 break;
2450         case NL80211_IFTYPE_NAN:
2451         default:
2452                 return -EOPNOTSUPP;
2453         }
2454
2455         return ieee80211_request_scan(sdata, req);
2456 }
2457
2458 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2459 {
2460         ieee80211_scan_cancel(wiphy_priv(wiphy));
2461 }
2462
2463 static int
2464 ieee80211_sched_scan_start(struct wiphy *wiphy,
2465                            struct net_device *dev,
2466                            struct cfg80211_sched_scan_request *req)
2467 {
2468         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2469
2470         if (!sdata->local->ops->sched_scan_start)
2471                 return -EOPNOTSUPP;
2472
2473         return ieee80211_request_sched_scan_start(sdata, req);
2474 }
2475
2476 static int
2477 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2478                           u64 reqid)
2479 {
2480         struct ieee80211_local *local = wiphy_priv(wiphy);
2481
2482         if (!local->ops->sched_scan_stop)
2483                 return -EOPNOTSUPP;
2484
2485         return ieee80211_request_sched_scan_stop(local);
2486 }
2487
2488 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2489                           struct cfg80211_auth_request *req)
2490 {
2491         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2492 }
2493
2494 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2495                            struct cfg80211_assoc_request *req)
2496 {
2497         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2498 }
2499
2500 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2501                             struct cfg80211_deauth_request *req)
2502 {
2503         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2504 }
2505
2506 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2507                               struct cfg80211_disassoc_request *req)
2508 {
2509         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2510 }
2511
2512 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2513                                struct cfg80211_ibss_params *params)
2514 {
2515         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2516 }
2517
2518 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2519 {
2520         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2521 }
2522
2523 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2524                               struct ocb_setup *setup)
2525 {
2526         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2527 }
2528
2529 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2530 {
2531         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2532 }
2533
2534 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2535                                     int rate[NUM_NL80211_BANDS])
2536 {
2537         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2538
2539         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2540                sizeof(int) * NUM_NL80211_BANDS);
2541
2542         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2543
2544         return 0;
2545 }
2546
2547 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2548 {
2549         struct ieee80211_local *local = wiphy_priv(wiphy);
2550         int err;
2551
2552         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2553                 ieee80211_check_fast_xmit_all(local);
2554
2555                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2556
2557                 if (err) {
2558                         ieee80211_check_fast_xmit_all(local);
2559                         return err;
2560                 }
2561         }
2562
2563         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2564             (changed & WIPHY_PARAM_DYN_ACK)) {
2565                 s16 coverage_class;
2566
2567                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2568                                         wiphy->coverage_class : -1;
2569                 err = drv_set_coverage_class(local, coverage_class);
2570
2571                 if (err)
2572                         return err;
2573         }
2574
2575         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2576                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2577
2578                 if (err)
2579                         return err;
2580         }
2581
2582         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2583                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2584                         return -EINVAL;
2585                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2586         }
2587         if (changed & WIPHY_PARAM_RETRY_LONG) {
2588                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2589                         return -EINVAL;
2590                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2591         }
2592         if (changed &
2593             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2594                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2595
2596         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2597                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2598                        WIPHY_PARAM_TXQ_QUANTUM))
2599                 ieee80211_txq_set_params(local);
2600
2601         return 0;
2602 }
2603
2604 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2605                                   struct wireless_dev *wdev,
2606                                   enum nl80211_tx_power_setting type, int mbm)
2607 {
2608         struct ieee80211_local *local = wiphy_priv(wiphy);
2609         struct ieee80211_sub_if_data *sdata;
2610         enum nl80211_tx_power_setting txp_type = type;
2611         bool update_txp_type = false;
2612         bool has_monitor = false;
2613
2614         if (wdev) {
2615                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2616
2617                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2618                         sdata = rtnl_dereference(local->monitor_sdata);
2619                         if (!sdata)
2620                                 return -EOPNOTSUPP;
2621                 }
2622
2623                 switch (type) {
2624                 case NL80211_TX_POWER_AUTOMATIC:
2625                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2626                         txp_type = NL80211_TX_POWER_LIMITED;
2627                         break;
2628                 case NL80211_TX_POWER_LIMITED:
2629                 case NL80211_TX_POWER_FIXED:
2630                         if (mbm < 0 || (mbm % 100))
2631                                 return -EOPNOTSUPP;
2632                         sdata->user_power_level = MBM_TO_DBM(mbm);
2633                         break;
2634                 }
2635
2636                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2637                         update_txp_type = true;
2638                         sdata->vif.bss_conf.txpower_type = txp_type;
2639                 }
2640
2641                 ieee80211_recalc_txpower(sdata, update_txp_type);
2642
2643                 return 0;
2644         }
2645
2646         switch (type) {
2647         case NL80211_TX_POWER_AUTOMATIC:
2648                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2649                 txp_type = NL80211_TX_POWER_LIMITED;
2650                 break;
2651         case NL80211_TX_POWER_LIMITED:
2652         case NL80211_TX_POWER_FIXED:
2653                 if (mbm < 0 || (mbm % 100))
2654                         return -EOPNOTSUPP;
2655                 local->user_power_level = MBM_TO_DBM(mbm);
2656                 break;
2657         }
2658
2659         mutex_lock(&local->iflist_mtx);
2660         list_for_each_entry(sdata, &local->interfaces, list) {
2661                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2662                         has_monitor = true;
2663                         continue;
2664                 }
2665                 sdata->user_power_level = local->user_power_level;
2666                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2667                         update_txp_type = true;
2668                 sdata->vif.bss_conf.txpower_type = txp_type;
2669         }
2670         list_for_each_entry(sdata, &local->interfaces, list) {
2671                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2672                         continue;
2673                 ieee80211_recalc_txpower(sdata, update_txp_type);
2674         }
2675         mutex_unlock(&local->iflist_mtx);
2676
2677         if (has_monitor) {
2678                 sdata = rtnl_dereference(local->monitor_sdata);
2679                 if (sdata) {
2680                         sdata->user_power_level = local->user_power_level;
2681                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2682                                 update_txp_type = true;
2683                         sdata->vif.bss_conf.txpower_type = txp_type;
2684
2685                         ieee80211_recalc_txpower(sdata, update_txp_type);
2686                 }
2687         }
2688
2689         return 0;
2690 }
2691
2692 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2693                                   struct wireless_dev *wdev,
2694                                   int *dbm)
2695 {
2696         struct ieee80211_local *local = wiphy_priv(wiphy);
2697         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2698
2699         if (local->ops->get_txpower)
2700                 return drv_get_txpower(local, sdata, dbm);
2701
2702         if (!local->use_chanctx)
2703                 *dbm = local->hw.conf.power_level;
2704         else
2705                 *dbm = sdata->vif.bss_conf.txpower;
2706
2707         return 0;
2708 }
2709
2710 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2711 {
2712         struct ieee80211_local *local = wiphy_priv(wiphy);
2713
2714         drv_rfkill_poll(local);
2715 }
2716
2717 #ifdef CONFIG_NL80211_TESTMODE
2718 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2719                                   struct wireless_dev *wdev,
2720                                   void *data, int len)
2721 {
2722         struct ieee80211_local *local = wiphy_priv(wiphy);
2723         struct ieee80211_vif *vif = NULL;
2724
2725         if (!local->ops->testmode_cmd)
2726                 return -EOPNOTSUPP;
2727
2728         if (wdev) {
2729                 struct ieee80211_sub_if_data *sdata;
2730
2731                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2732                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2733                         vif = &sdata->vif;
2734         }
2735
2736         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2737 }
2738
2739 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2740                                    struct sk_buff *skb,
2741                                    struct netlink_callback *cb,
2742                                    void *data, int len)
2743 {
2744         struct ieee80211_local *local = wiphy_priv(wiphy);
2745
2746         if (!local->ops->testmode_dump)
2747                 return -EOPNOTSUPP;
2748
2749         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2750 }
2751 #endif
2752
2753 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2754                                  enum ieee80211_smps_mode smps_mode)
2755 {
2756         const u8 *ap;
2757         enum ieee80211_smps_mode old_req;
2758         int err;
2759         struct sta_info *sta;
2760         bool tdls_peer_found = false;
2761
2762         lockdep_assert_held(&sdata->wdev.mtx);
2763
2764         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2765                 return -EINVAL;
2766
2767         old_req = sdata->u.mgd.req_smps;
2768         sdata->u.mgd.req_smps = smps_mode;
2769
2770         if (old_req == smps_mode &&
2771             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2772                 return 0;
2773
2774         /*
2775          * If not associated, or current association is not an HT
2776          * association, there's no need to do anything, just store
2777          * the new value until we associate.
2778          */
2779         if (!sdata->u.mgd.associated ||
2780             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2781                 return 0;
2782
2783         ap = sdata->u.mgd.associated->bssid;
2784
2785         rcu_read_lock();
2786         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2787                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2788                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2789                         continue;
2790
2791                 tdls_peer_found = true;
2792                 break;
2793         }
2794         rcu_read_unlock();
2795
2796         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2797                 if (tdls_peer_found || !sdata->u.mgd.powersave)
2798                         smps_mode = IEEE80211_SMPS_OFF;
2799                 else
2800                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2801         }
2802
2803         /* send SM PS frame to AP */
2804         err = ieee80211_send_smps_action(sdata, smps_mode,
2805                                          ap, ap);
2806         if (err)
2807                 sdata->u.mgd.req_smps = old_req;
2808         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2809                 ieee80211_teardown_tdls_peers(sdata);
2810
2811         return err;
2812 }
2813
2814 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2815                                     bool enabled, int timeout)
2816 {
2817         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2818         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2819
2820         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2821                 return -EOPNOTSUPP;
2822
2823         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2824                 return -EOPNOTSUPP;
2825
2826         if (enabled == sdata->u.mgd.powersave &&
2827             timeout == local->dynamic_ps_forced_timeout)
2828                 return 0;
2829
2830         sdata->u.mgd.powersave = enabled;
2831         local->dynamic_ps_forced_timeout = timeout;
2832
2833         /* no change, but if automatic follow powersave */
2834         sdata_lock(sdata);
2835         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2836         sdata_unlock(sdata);
2837
2838         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2839                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2840
2841         ieee80211_recalc_ps(local);
2842         ieee80211_recalc_ps_vif(sdata);
2843         ieee80211_check_fast_rx_iface(sdata);
2844
2845         return 0;
2846 }
2847
2848 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2849                                          struct net_device *dev,
2850                                          s32 rssi_thold, u32 rssi_hyst)
2851 {
2852         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2853         struct ieee80211_vif *vif = &sdata->vif;
2854         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2855
2856         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2857             rssi_hyst == bss_conf->cqm_rssi_hyst)
2858                 return 0;
2859
2860         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2861             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2862                 return -EOPNOTSUPP;
2863
2864         bss_conf->cqm_rssi_thold = rssi_thold;
2865         bss_conf->cqm_rssi_hyst = rssi_hyst;
2866         bss_conf->cqm_rssi_low = 0;
2867         bss_conf->cqm_rssi_high = 0;
2868         sdata->u.mgd.last_cqm_event_signal = 0;
2869
2870         /* tell the driver upon association, unless already associated */
2871         if (sdata->u.mgd.associated &&
2872             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2873                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2874
2875         return 0;
2876 }
2877
2878 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2879                                                struct net_device *dev,
2880                                                s32 rssi_low, s32 rssi_high)
2881 {
2882         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2883         struct ieee80211_vif *vif = &sdata->vif;
2884         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2885
2886         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2887                 return -EOPNOTSUPP;
2888
2889         bss_conf->cqm_rssi_low = rssi_low;
2890         bss_conf->cqm_rssi_high = rssi_high;
2891         bss_conf->cqm_rssi_thold = 0;
2892         bss_conf->cqm_rssi_hyst = 0;
2893         sdata->u.mgd.last_cqm_event_signal = 0;
2894
2895         /* tell the driver upon association, unless already associated */
2896         if (sdata->u.mgd.associated &&
2897             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2898                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2899
2900         return 0;
2901 }
2902
2903 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2904                                       struct net_device *dev,
2905                                       const u8 *addr,
2906                                       const struct cfg80211_bitrate_mask *mask)
2907 {
2908         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2909         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2910         int i, ret;
2911
2912         if (!ieee80211_sdata_running(sdata))
2913                 return -ENETDOWN;
2914
2915         /*
2916          * If active validate the setting and reject it if it doesn't leave
2917          * at least one basic rate usable, since we really have to be able
2918          * to send something, and if we're an AP we have to be able to do
2919          * so at a basic rate so that all clients can receive it.
2920          */
2921         if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2922             sdata->vif.bss_conf.chandef.chan) {
2923                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2924                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2925
2926                 if (!(mask->control[band].legacy & basic_rates))
2927                         return -EINVAL;
2928         }
2929
2930         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2931                 ret = drv_set_bitrate_mask(local, sdata, mask);
2932                 if (ret)
2933                         return ret;
2934         }
2935
2936         for (i = 0; i < NUM_NL80211_BANDS; i++) {
2937                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2938                 int j;
2939
2940                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2941                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2942                        sizeof(mask->control[i].ht_mcs));
2943                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2944                        mask->control[i].vht_mcs,
2945                        sizeof(mask->control[i].vht_mcs));
2946
2947                 sdata->rc_has_mcs_mask[i] = false;
2948                 sdata->rc_has_vht_mcs_mask[i] = false;
2949                 if (!sband)
2950                         continue;
2951
2952                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2953                         if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2954                                 sdata->rc_has_mcs_mask[i] = true;
2955                                 break;
2956                         }
2957                 }
2958
2959                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2960                         if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2961                                 sdata->rc_has_vht_mcs_mask[i] = true;
2962                                 break;
2963                         }
2964                 }
2965         }
2966
2967         return 0;
2968 }
2969
2970 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2971                                            struct net_device *dev,
2972                                            struct cfg80211_chan_def *chandef,
2973                                            u32 cac_time_ms)
2974 {
2975         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2976         struct ieee80211_local *local = sdata->local;
2977         int err;
2978
2979         mutex_lock(&local->mtx);
2980         if (!list_empty(&local->roc_list) || local->scanning) {
2981                 err = -EBUSY;
2982                 goto out_unlock;
2983         }
2984
2985         /* whatever, but channel contexts should not complain about that one */
2986         sdata->smps_mode = IEEE80211_SMPS_OFF;
2987         sdata->needed_rx_chains = local->rx_chains;
2988
2989         err = ieee80211_vif_use_channel(sdata, chandef,
2990                                         IEEE80211_CHANCTX_SHARED);
2991         if (err)
2992                 goto out_unlock;
2993
2994         ieee80211_queue_delayed_work(&sdata->local->hw,
2995                                      &sdata->dfs_cac_timer_work,
2996                                      msecs_to_jiffies(cac_time_ms));
2997
2998  out_unlock:
2999         mutex_unlock(&local->mtx);
3000         return err;
3001 }
3002
3003 static void ieee80211_end_cac(struct wiphy *wiphy,
3004                               struct net_device *dev)
3005 {
3006         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3007         struct ieee80211_local *local = sdata->local;
3008
3009         mutex_lock(&local->mtx);
3010         list_for_each_entry(sdata, &local->interfaces, list) {
3011                 /* it might be waiting for the local->mtx, but then
3012                  * by the time it gets it, sdata->wdev.cac_started
3013                  * will no longer be true
3014                  */
3015                 cancel_delayed_work(&sdata->dfs_cac_timer_work);
3016
3017                 if (sdata->wdev.cac_started) {
3018                         ieee80211_vif_release_channel(sdata);
3019                         sdata->wdev.cac_started = false;
3020                 }
3021         }
3022         mutex_unlock(&local->mtx);
3023 }
3024
3025 static struct cfg80211_beacon_data *
3026 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3027 {
3028         struct cfg80211_beacon_data *new_beacon;
3029         u8 *pos;
3030         int len;
3031
3032         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3033               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3034               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3035
3036         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3037         if (!new_beacon)
3038                 return NULL;
3039
3040         pos = (u8 *)(new_beacon + 1);
3041         if (beacon->head_len) {
3042                 new_beacon->head_len = beacon->head_len;
3043                 new_beacon->head = pos;
3044                 memcpy(pos, beacon->head, beacon->head_len);
3045                 pos += beacon->head_len;
3046         }
3047         if (beacon->tail_len) {
3048                 new_beacon->tail_len = beacon->tail_len;
3049                 new_beacon->tail = pos;
3050                 memcpy(pos, beacon->tail, beacon->tail_len);
3051                 pos += beacon->tail_len;
3052         }
3053         if (beacon->beacon_ies_len) {
3054                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3055                 new_beacon->beacon_ies = pos;
3056                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3057                 pos += beacon->beacon_ies_len;
3058         }
3059         if (beacon->proberesp_ies_len) {
3060                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3061                 new_beacon->proberesp_ies = pos;
3062                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3063                 pos += beacon->proberesp_ies_len;
3064         }
3065         if (beacon->assocresp_ies_len) {
3066                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3067                 new_beacon->assocresp_ies = pos;
3068                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3069                 pos += beacon->assocresp_ies_len;
3070         }
3071         if (beacon->probe_resp_len) {
3072                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3073                 new_beacon->probe_resp = pos;
3074                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3075                 pos += beacon->probe_resp_len;
3076         }
3077
3078         /* might copy -1, meaning no changes requested */
3079         new_beacon->ftm_responder = beacon->ftm_responder;
3080         if (beacon->lci) {
3081                 new_beacon->lci_len = beacon->lci_len;
3082                 new_beacon->lci = pos;
3083                 memcpy(pos, beacon->lci, beacon->lci_len);
3084                 pos += beacon->lci_len;
3085         }
3086         if (beacon->civicloc) {
3087                 new_beacon->civicloc_len = beacon->civicloc_len;
3088                 new_beacon->civicloc = pos;
3089                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3090                 pos += beacon->civicloc_len;
3091         }
3092
3093         return new_beacon;
3094 }
3095
3096 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3097 {
3098         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3099
3100         ieee80211_queue_work(&sdata->local->hw,
3101                              &sdata->csa_finalize_work);
3102 }
3103 EXPORT_SYMBOL(ieee80211_csa_finish);
3104
3105 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3106                                           u32 *changed)
3107 {
3108         int err;
3109
3110         switch (sdata->vif.type) {
3111         case NL80211_IFTYPE_AP:
3112                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3113                                               NULL);
3114                 kfree(sdata->u.ap.next_beacon);
3115                 sdata->u.ap.next_beacon = NULL;
3116
3117                 if (err < 0)
3118                         return err;
3119                 *changed |= err;
3120                 break;
3121         case NL80211_IFTYPE_ADHOC:
3122                 err = ieee80211_ibss_finish_csa(sdata);
3123                 if (err < 0)
3124                         return err;
3125                 *changed |= err;
3126                 break;
3127 #ifdef CONFIG_MAC80211_MESH
3128         case NL80211_IFTYPE_MESH_POINT:
3129                 err = ieee80211_mesh_finish_csa(sdata);
3130                 if (err < 0)
3131                         return err;
3132                 *changed |= err;
3133                 break;
3134 #endif
3135         default:
3136                 WARN_ON(1);
3137                 return -EINVAL;
3138         }
3139
3140         return 0;
3141 }
3142
3143 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3144 {
3145         struct ieee80211_local *local = sdata->local;
3146         u32 changed = 0;
3147         int err;
3148
3149         sdata_assert_lock(sdata);
3150         lockdep_assert_held(&local->mtx);
3151         lockdep_assert_held(&local->chanctx_mtx);
3152
3153         /*
3154          * using reservation isn't immediate as it may be deferred until later
3155          * with multi-vif. once reservation is complete it will re-schedule the
3156          * work with no reserved_chanctx so verify chandef to check if it
3157          * completed successfully
3158          */
3159
3160         if (sdata->reserved_chanctx) {
3161                 /*
3162                  * with multi-vif csa driver may call ieee80211_csa_finish()
3163                  * many times while waiting for other interfaces to use their
3164                  * reservations
3165                  */
3166                 if (sdata->reserved_ready)
3167                         return 0;
3168
3169                 return ieee80211_vif_use_reserved_context(sdata);
3170         }
3171
3172         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3173                                         &sdata->csa_chandef))
3174                 return -EINVAL;
3175
3176         sdata->vif.csa_active = false;
3177
3178         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3179         if (err)
3180                 return err;
3181
3182         ieee80211_bss_info_change_notify(sdata, changed);
3183
3184         if (sdata->csa_block_tx) {
3185                 ieee80211_wake_vif_queues(local, sdata,
3186                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3187                 sdata->csa_block_tx = false;
3188         }
3189
3190         err = drv_post_channel_switch(sdata);
3191         if (err)
3192                 return err;
3193
3194         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3195
3196         return 0;
3197 }
3198
3199 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3200 {
3201         if (__ieee80211_csa_finalize(sdata)) {
3202                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3203                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3204                                     GFP_KERNEL);
3205         }
3206 }
3207
3208 void ieee80211_csa_finalize_work(struct work_struct *work)
3209 {
3210         struct ieee80211_sub_if_data *sdata =
3211                 container_of(work, struct ieee80211_sub_if_data,
3212                              csa_finalize_work);
3213         struct ieee80211_local *local = sdata->local;
3214
3215         sdata_lock(sdata);
3216         mutex_lock(&local->mtx);
3217         mutex_lock(&local->chanctx_mtx);
3218
3219         /* AP might have been stopped while waiting for the lock. */
3220         if (!sdata->vif.csa_active)
3221                 goto unlock;
3222
3223         if (!ieee80211_sdata_running(sdata))
3224                 goto unlock;
3225
3226         ieee80211_csa_finalize(sdata);
3227
3228 unlock:
3229         mutex_unlock(&local->chanctx_mtx);
3230         mutex_unlock(&local->mtx);
3231         sdata_unlock(sdata);
3232 }
3233
3234 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3235                                     struct cfg80211_csa_settings *params,
3236                                     u32 *changed)
3237 {
3238         struct ieee80211_csa_settings csa = {};
3239         int err;
3240
3241         switch (sdata->vif.type) {
3242         case NL80211_IFTYPE_AP:
3243                 sdata->u.ap.next_beacon =
3244                         cfg80211_beacon_dup(&params->beacon_after);
3245                 if (!sdata->u.ap.next_beacon)
3246                         return -ENOMEM;
3247
3248                 /*
3249                  * With a count of 0, we don't have to wait for any
3250                  * TBTT before switching, so complete the CSA
3251                  * immediately.  In theory, with a count == 1 we
3252                  * should delay the switch until just before the next
3253                  * TBTT, but that would complicate things so we switch
3254                  * immediately too.  If we would delay the switch
3255                  * until the next TBTT, we would have to set the probe
3256                  * response here.
3257                  *
3258                  * TODO: A channel switch with count <= 1 without
3259                  * sending a CSA action frame is kind of useless,
3260                  * because the clients won't know we're changing
3261                  * channels.  The action frame must be implemented
3262                  * either here or in the userspace.
3263                  */
3264                 if (params->count <= 1)
3265                         break;
3266
3267                 if ((params->n_counter_offsets_beacon >
3268                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3269                     (params->n_counter_offsets_presp >
3270                      IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
3271                         return -EINVAL;
3272
3273                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3274                 csa.counter_offsets_presp = params->counter_offsets_presp;
3275                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3276                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3277                 csa.count = params->count;
3278
3279                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3280                 if (err < 0) {
3281                         kfree(sdata->u.ap.next_beacon);
3282                         return err;
3283                 }
3284                 *changed |= err;
3285
3286                 break;
3287         case NL80211_IFTYPE_ADHOC:
3288                 if (!sdata->vif.bss_conf.ibss_joined)
3289                         return -EINVAL;
3290
3291                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3292                         return -EINVAL;
3293
3294                 switch (params->chandef.width) {
3295                 case NL80211_CHAN_WIDTH_40:
3296                         if (cfg80211_get_chandef_type(&params->chandef) !=
3297                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3298                                 return -EINVAL;
3299                         break;
3300                 case NL80211_CHAN_WIDTH_5:
3301                 case NL80211_CHAN_WIDTH_10:
3302                 case NL80211_CHAN_WIDTH_20_NOHT:
3303                 case NL80211_CHAN_WIDTH_20:
3304                         break;
3305                 default:
3306                         return -EINVAL;
3307                 }
3308
3309                 /* changes into another band are not supported */
3310                 if (sdata->u.ibss.chandef.chan->band !=
3311                     params->chandef.chan->band)
3312                         return -EINVAL;
3313
3314                 /* see comments in the NL80211_IFTYPE_AP block */
3315                 if (params->count > 1) {
3316                         err = ieee80211_ibss_csa_beacon(sdata, params);
3317                         if (err < 0)
3318                                 return err;
3319                         *changed |= err;
3320                 }
3321
3322                 ieee80211_send_action_csa(sdata, params);
3323
3324                 break;
3325 #ifdef CONFIG_MAC80211_MESH
3326         case NL80211_IFTYPE_MESH_POINT: {
3327                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3328
3329                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3330                         return -EINVAL;
3331
3332                 /* changes into another band are not supported */
3333                 if (sdata->vif.bss_conf.chandef.chan->band !=
3334                     params->chandef.chan->band)
3335                         return -EINVAL;
3336
3337                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3338                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3339                         if (!ifmsh->pre_value)
3340                                 ifmsh->pre_value = 1;
3341                         else
3342                                 ifmsh->pre_value++;
3343                 }
3344
3345                 /* see comments in the NL80211_IFTYPE_AP block */
3346                 if (params->count > 1) {
3347                         err = ieee80211_mesh_csa_beacon(sdata, params);
3348                         if (err < 0) {
3349                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3350                                 return err;
3351                         }
3352                         *changed |= err;
3353                 }
3354
3355                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3356                         ieee80211_send_action_csa(sdata, params);
3357
3358                 break;
3359                 }
3360 #endif
3361         default:
3362                 return -EOPNOTSUPP;
3363         }
3364
3365         return 0;
3366 }
3367
3368 static int
3369 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3370                            struct cfg80211_csa_settings *params)
3371 {
3372         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3373         struct ieee80211_local *local = sdata->local;
3374         struct ieee80211_channel_switch ch_switch;
3375         struct ieee80211_chanctx_conf *conf;
3376         struct ieee80211_chanctx *chanctx;
3377         u32 changed = 0;
3378         int err;
3379
3380         sdata_assert_lock(sdata);
3381         lockdep_assert_held(&local->mtx);
3382
3383         if (!list_empty(&local->roc_list) || local->scanning)
3384                 return -EBUSY;
3385
3386         if (sdata->wdev.cac_started)
3387                 return -EBUSY;
3388
3389         if (cfg80211_chandef_identical(&params->chandef,
3390                                        &sdata->vif.bss_conf.chandef))
3391                 return -EINVAL;
3392
3393         /* don't allow another channel switch if one is already active. */
3394         if (sdata->vif.csa_active)
3395                 return -EBUSY;
3396
3397         mutex_lock(&local->chanctx_mtx);
3398         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3399                                          lockdep_is_held(&local->chanctx_mtx));
3400         if (!conf) {
3401                 err = -EBUSY;
3402                 goto out;
3403         }
3404
3405         if (params->chandef.chan->freq_offset) {
3406                 /* this may work, but is untested */
3407                 err = -EOPNOTSUPP;
3408                 goto out;
3409         }
3410
3411         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3412
3413         ch_switch.timestamp = 0;
3414         ch_switch.device_timestamp = 0;
3415         ch_switch.block_tx = params->block_tx;
3416         ch_switch.chandef = params->chandef;
3417         ch_switch.count = params->count;
3418
3419         err = drv_pre_channel_switch(sdata, &ch_switch);
3420         if (err)
3421                 goto out;
3422
3423         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3424                                             chanctx->mode,
3425                                             params->radar_required);
3426         if (err)
3427                 goto out;
3428
3429         /* if reservation is invalid then this will fail */
3430         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3431         if (err) {
3432                 ieee80211_vif_unreserve_chanctx(sdata);
3433                 goto out;
3434         }
3435
3436         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3437         if (err) {
3438                 ieee80211_vif_unreserve_chanctx(sdata);
3439                 goto out;
3440         }
3441
3442         sdata->csa_chandef = params->chandef;
3443         sdata->csa_block_tx = params->block_tx;
3444         sdata->vif.csa_active = true;
3445
3446         if (sdata->csa_block_tx)
3447                 ieee80211_stop_vif_queues(local, sdata,
3448                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3449
3450         cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3451                                           params->count, params->block_tx);
3452
3453         if (changed) {
3454                 ieee80211_bss_info_change_notify(sdata, changed);
3455                 drv_channel_switch_beacon(sdata, &params->chandef);
3456         } else {
3457                 /* if the beacon didn't change, we can finalize immediately */
3458                 ieee80211_csa_finalize(sdata);
3459         }
3460
3461 out:
3462         mutex_unlock(&local->chanctx_mtx);
3463         return err;
3464 }
3465
3466 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3467                              struct cfg80211_csa_settings *params)
3468 {
3469         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3470         struct ieee80211_local *local = sdata->local;
3471         int err;
3472
3473         mutex_lock(&local->mtx);
3474         err = __ieee80211_channel_switch(wiphy, dev, params);
3475         mutex_unlock(&local->mtx);
3476
3477         return err;
3478 }
3479
3480 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3481 {
3482         lockdep_assert_held(&local->mtx);
3483
3484         local->roc_cookie_counter++;
3485
3486         /* wow, you wrapped 64 bits ... more likely a bug */
3487         if (WARN_ON(local->roc_cookie_counter == 0))
3488                 local->roc_cookie_counter++;
3489
3490         return local->roc_cookie_counter;
3491 }
3492
3493 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3494                              u64 *cookie, gfp_t gfp)
3495 {
3496         unsigned long spin_flags;
3497         struct sk_buff *ack_skb;
3498         int id;
3499
3500         ack_skb = skb_copy(skb, gfp);
3501         if (!ack_skb)
3502                 return -ENOMEM;
3503
3504         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3505         id = idr_alloc(&local->ack_status_frames, ack_skb,
3506                        1, 0x2000, GFP_ATOMIC);
3507         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3508
3509         if (id < 0) {
3510                 kfree_skb(ack_skb);
3511                 return -ENOMEM;
3512         }
3513
3514         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3515
3516         *cookie = ieee80211_mgmt_tx_cookie(local);
3517         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3518
3519         return 0;
3520 }
3521
3522 static void
3523 ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3524                                           struct wireless_dev *wdev,
3525                                           struct mgmt_frame_regs *upd)
3526 {
3527         struct ieee80211_local *local = wiphy_priv(wiphy);
3528         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3529         u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3530         u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3531         bool global_change, intf_change;
3532
3533         global_change =
3534                 (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3535                 (local->rx_mcast_action_reg !=
3536                  !!(upd->global_mcast_stypes & action_mask));
3537         local->probe_req_reg = upd->global_stypes & preq_mask;
3538         local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3539
3540         intf_change = (sdata->vif.probe_req_reg !=
3541                        !!(upd->interface_stypes & preq_mask)) ||
3542                 (sdata->vif.rx_mcast_action_reg !=
3543                  !!(upd->interface_mcast_stypes & action_mask));
3544         sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3545         sdata->vif.rx_mcast_action_reg =
3546                 upd->interface_mcast_stypes & action_mask;
3547
3548         if (!local->open_count)
3549                 return;
3550
3551         if (intf_change && ieee80211_sdata_running(sdata))
3552                 drv_config_iface_filter(local, sdata,
3553                                         sdata->vif.probe_req_reg ?
3554                                                 FIF_PROBE_REQ : 0,
3555                                         FIF_PROBE_REQ);
3556
3557         if (global_change)
3558                 ieee80211_configure_filter(local);
3559 }
3560
3561 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3562 {
3563         struct ieee80211_local *local = wiphy_priv(wiphy);
3564
3565         if (local->started)
3566                 return -EOPNOTSUPP;
3567
3568         return drv_set_antenna(local, tx_ant, rx_ant);
3569 }
3570
3571 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3572 {
3573         struct ieee80211_local *local = wiphy_priv(wiphy);
3574
3575         return drv_get_antenna(local, tx_ant, rx_ant);
3576 }
3577
3578 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3579                                     struct net_device *dev,
3580                                     struct cfg80211_gtk_rekey_data *data)
3581 {
3582         struct ieee80211_local *local = wiphy_priv(wiphy);
3583         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3584
3585         if (!local->ops->set_rekey_data)
3586                 return -EOPNOTSUPP;
3587
3588         drv_set_rekey_data(local, sdata, data);
3589
3590         return 0;
3591 }
3592
3593 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3594                                   const u8 *peer, u64 *cookie)
3595 {
3596         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3597         struct ieee80211_local *local = sdata->local;
3598         struct ieee80211_qos_hdr *nullfunc;
3599         struct sk_buff *skb;
3600         int size = sizeof(*nullfunc);
3601         __le16 fc;
3602         bool qos;
3603         struct ieee80211_tx_info *info;
3604         struct sta_info *sta;
3605         struct ieee80211_chanctx_conf *chanctx_conf;
3606         enum nl80211_band band;
3607         int ret;
3608
3609         /* the lock is needed to assign the cookie later */
3610         mutex_lock(&local->mtx);
3611
3612         rcu_read_lock();
3613         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3614         if (WARN_ON(!chanctx_conf)) {
3615                 ret = -EINVAL;
3616                 goto unlock;
3617         }
3618         band = chanctx_conf->def.chan->band;
3619         sta = sta_info_get_bss(sdata, peer);
3620         if (sta) {
3621                 qos = sta->sta.wme;
3622         } else {
3623                 ret = -ENOLINK;
3624                 goto unlock;
3625         }
3626
3627         if (qos) {
3628                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3629                                  IEEE80211_STYPE_QOS_NULLFUNC |
3630                                  IEEE80211_FCTL_FROMDS);
3631         } else {
3632                 size -= 2;
3633                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3634                                  IEEE80211_STYPE_NULLFUNC |
3635                                  IEEE80211_FCTL_FROMDS);
3636         }
3637
3638         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3639         if (!skb) {
3640                 ret = -ENOMEM;
3641                 goto unlock;
3642         }
3643
3644         skb->dev = dev;
3645
3646         skb_reserve(skb, local->hw.extra_tx_headroom);
3647
3648         nullfunc = skb_put(skb, size);
3649         nullfunc->frame_control = fc;
3650         nullfunc->duration_id = 0;
3651         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3652         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3653         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3654         nullfunc->seq_ctrl = 0;
3655
3656         info = IEEE80211_SKB_CB(skb);
3657
3658         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3659                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3660         info->band = band;
3661
3662         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3663         skb->priority = 7;
3664         if (qos)
3665                 nullfunc->qos_ctrl = cpu_to_le16(7);
3666
3667         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3668         if (ret) {
3669                 kfree_skb(skb);
3670                 goto unlock;
3671         }
3672
3673         local_bh_disable();
3674         ieee80211_xmit(sdata, sta, skb);
3675         local_bh_enable();
3676
3677         ret = 0;
3678 unlock:
3679         rcu_read_unlock();
3680         mutex_unlock(&local->mtx);
3681
3682         return ret;
3683 }
3684
3685 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3686                                      struct wireless_dev *wdev,
3687                                      struct cfg80211_chan_def *chandef)
3688 {
3689         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3690         struct ieee80211_local *local = wiphy_priv(wiphy);
3691         struct ieee80211_chanctx_conf *chanctx_conf;
3692         int ret = -ENODATA;
3693
3694         rcu_read_lock();
3695         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3696         if (chanctx_conf) {
3697                 *chandef = sdata->vif.bss_conf.chandef;
3698                 ret = 0;
3699         } else if (local->open_count > 0 &&
3700                    local->open_count == local->monitors &&
3701                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3702                 if (local->use_chanctx)
3703                         *chandef = local->monitor_chandef;
3704                 else
3705                         *chandef = local->_oper_chandef;
3706                 ret = 0;
3707         }
3708         rcu_read_unlock();
3709
3710         return ret;
3711 }
3712
3713 #ifdef CONFIG_PM
3714 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3715 {
3716         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3717 }
3718 #endif
3719
3720 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3721                                  struct net_device *dev,
3722                                  struct cfg80211_qos_map *qos_map)
3723 {
3724         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3725         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3726
3727         if (qos_map) {
3728                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3729                 if (!new_qos_map)
3730                         return -ENOMEM;
3731                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3732         } else {
3733                 /* A NULL qos_map was passed to disable QoS mapping */
3734                 new_qos_map = NULL;
3735         }
3736
3737         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3738         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3739         if (old_qos_map)
3740                 kfree_rcu(old_qos_map, rcu_head);
3741
3742         return 0;
3743 }
3744
3745 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3746                                       struct net_device *dev,
3747                                       struct cfg80211_chan_def *chandef)
3748 {
3749         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3750         int ret;
3751         u32 changed = 0;
3752
3753         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3754         if (ret == 0)
3755                 ieee80211_bss_info_change_notify(sdata, changed);
3756
3757         return ret;
3758 }
3759
3760 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3761                                u8 tsid, const u8 *peer, u8 up,
3762                                u16 admitted_time)
3763 {
3764         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3765         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3766         int ac = ieee802_1d_to_ac[up];
3767
3768         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3769                 return -EOPNOTSUPP;
3770
3771         if (!(sdata->wmm_acm & BIT(up)))
3772                 return -EINVAL;
3773
3774         if (ifmgd->tx_tspec[ac].admitted_time)
3775                 return -EBUSY;
3776
3777         if (admitted_time) {
3778                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3779                 ifmgd->tx_tspec[ac].tsid = tsid;
3780                 ifmgd->tx_tspec[ac].up = up;
3781         }
3782
3783         return 0;
3784 }
3785
3786 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3787                                u8 tsid, const u8 *peer)
3788 {
3789         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3790         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3791         struct ieee80211_local *local = wiphy_priv(wiphy);
3792         int ac;
3793
3794         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3795                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3796
3797                 /* skip unused entries */
3798                 if (!tx_tspec->admitted_time)
3799                         continue;
3800
3801                 if (tx_tspec->tsid != tsid)
3802                         continue;
3803
3804                 /* due to this new packets will be reassigned to non-ACM ACs */
3805                 tx_tspec->up = -1;
3806
3807                 /* Make sure that all packets have been sent to avoid to
3808                  * restore the QoS params on packets that are still on the
3809                  * queues.
3810                  */
3811                 synchronize_net();
3812                 ieee80211_flush_queues(local, sdata, false);
3813
3814                 /* restore the normal QoS parameters
3815                  * (unconditionally to avoid races)
3816                  */
3817                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3818                 tx_tspec->downgraded = false;
3819                 ieee80211_sta_handle_tspec_ac_params(sdata);
3820
3821                 /* finally clear all the data */
3822                 memset(tx_tspec, 0, sizeof(*tx_tspec));
3823
3824                 return 0;
3825         }
3826
3827         return -ENOENT;
3828 }
3829
3830 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3831                                    u8 inst_id,
3832                                    enum nl80211_nan_func_term_reason reason,
3833                                    gfp_t gfp)
3834 {
3835         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3836         struct cfg80211_nan_func *func;
3837         u64 cookie;
3838
3839         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3840                 return;
3841
3842         spin_lock_bh(&sdata->u.nan.func_lock);
3843
3844         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3845         if (WARN_ON(!func)) {
3846                 spin_unlock_bh(&sdata->u.nan.func_lock);
3847                 return;
3848         }
3849
3850         cookie = func->cookie;
3851         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3852
3853         spin_unlock_bh(&sdata->u.nan.func_lock);
3854
3855         cfg80211_free_nan_func(func);
3856
3857         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3858                                      reason, cookie, gfp);
3859 }
3860 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3861
3862 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3863                               struct cfg80211_nan_match_params *match,
3864                               gfp_t gfp)
3865 {
3866         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3867         struct cfg80211_nan_func *func;
3868
3869         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3870                 return;
3871
3872         spin_lock_bh(&sdata->u.nan.func_lock);
3873
3874         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3875         if (WARN_ON(!func)) {
3876                 spin_unlock_bh(&sdata->u.nan.func_lock);
3877                 return;
3878         }
3879         match->cookie = func->cookie;
3880
3881         spin_unlock_bh(&sdata->u.nan.func_lock);
3882
3883         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3884 }
3885 EXPORT_SYMBOL(ieee80211_nan_func_match);
3886
3887 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3888                                               struct net_device *dev,
3889                                               const bool enabled)
3890 {
3891         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3892
3893         sdata->u.ap.multicast_to_unicast = enabled;
3894
3895         return 0;
3896 }
3897
3898 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3899                               struct txq_info *txqi)
3900 {
3901         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3902                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3903                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3904         }
3905
3906         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3907                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3908                 txqstats->backlog_packets = txqi->tin.backlog_packets;
3909         }
3910
3911         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3912                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3913                 txqstats->flows = txqi->tin.flows;
3914         }
3915
3916         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3917                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3918                 txqstats->drops = txqi->cstats.drop_count;
3919         }
3920
3921         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3922                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3923                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3924         }
3925
3926         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3927                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3928                 txqstats->overlimit = txqi->tin.overlimit;
3929         }
3930
3931         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3932                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3933                 txqstats->collisions = txqi->tin.collisions;
3934         }
3935
3936         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3937                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3938                 txqstats->tx_bytes = txqi->tin.tx_bytes;
3939         }
3940
3941         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3942                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3943                 txqstats->tx_packets = txqi->tin.tx_packets;
3944         }
3945 }
3946
3947 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3948                                    struct wireless_dev *wdev,
3949                                    struct cfg80211_txq_stats *txqstats)
3950 {
3951         struct ieee80211_local *local = wiphy_priv(wiphy);
3952         struct ieee80211_sub_if_data *sdata;
3953         int ret = 0;
3954
3955         if (!local->ops->wake_tx_queue)
3956                 return 1;
3957
3958         spin_lock_bh(&local->fq.lock);
3959         rcu_read_lock();
3960
3961         if (wdev) {
3962                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3963                 if (!sdata->vif.txq) {
3964                         ret = 1;
3965                         goto out;
3966                 }
3967                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3968         } else {
3969                 /* phy stats */
3970                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3971                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3972                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3973                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3974                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
3975                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3976                 txqstats->backlog_packets = local->fq.backlog;
3977                 txqstats->backlog_bytes = local->fq.memory_usage;
3978                 txqstats->overlimit = local->fq.overlimit;
3979                 txqstats->overmemory = local->fq.overmemory;
3980                 txqstats->collisions = local->fq.collisions;
3981                 txqstats->max_flows = local->fq.flows_cnt;
3982         }
3983
3984 out:
3985         rcu_read_unlock();
3986         spin_unlock_bh(&local->fq.lock);
3987
3988         return ret;
3989 }
3990
3991 static int
3992 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
3993                                   struct net_device *dev,
3994                                   struct cfg80211_ftm_responder_stats *ftm_stats)
3995 {
3996         struct ieee80211_local *local = wiphy_priv(wiphy);
3997         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3998
3999         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4000 }
4001
4002 static int
4003 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4004                      struct cfg80211_pmsr_request *request)
4005 {
4006         struct ieee80211_local *local = wiphy_priv(wiphy);
4007         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4008
4009         return drv_start_pmsr(local, sdata, request);
4010 }
4011
4012 static void
4013 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4014                      struct cfg80211_pmsr_request *request)
4015 {
4016         struct ieee80211_local *local = wiphy_priv(wiphy);
4017         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4018
4019         return drv_abort_pmsr(local, sdata, request);
4020 }
4021
4022 static int ieee80211_set_tid_config(struct wiphy *wiphy,
4023                                     struct net_device *dev,
4024                                     struct cfg80211_tid_config *tid_conf)
4025 {
4026         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4027         struct sta_info *sta;
4028         int ret;
4029
4030         if (!sdata->local->ops->set_tid_config)
4031                 return -EOPNOTSUPP;
4032
4033         if (!tid_conf->peer)
4034                 return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4035
4036         mutex_lock(&sdata->local->sta_mtx);
4037         sta = sta_info_get_bss(sdata, tid_conf->peer);
4038         if (!sta) {
4039                 mutex_unlock(&sdata->local->sta_mtx);
4040                 return -ENOENT;
4041         }
4042
4043         ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4044         mutex_unlock(&sdata->local->sta_mtx);
4045
4046         return ret;
4047 }
4048
4049 static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4050                                       struct net_device *dev,
4051                                       const u8 *peer, u8 tids)
4052 {
4053         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4054         struct sta_info *sta;
4055         int ret;
4056
4057         if (!sdata->local->ops->reset_tid_config)
4058                 return -EOPNOTSUPP;
4059
4060         if (!peer)
4061                 return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4062
4063         mutex_lock(&sdata->local->sta_mtx);
4064         sta = sta_info_get_bss(sdata, peer);
4065         if (!sta) {
4066                 mutex_unlock(&sdata->local->sta_mtx);
4067                 return -ENOENT;
4068         }
4069
4070         ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4071         mutex_unlock(&sdata->local->sta_mtx);
4072
4073         return ret;
4074 }
4075
4076 static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4077                                    struct cfg80211_sar_specs *sar)
4078 {
4079         struct ieee80211_local *local = wiphy_priv(wiphy);
4080
4081         if (!local->ops->set_sar_specs)
4082                 return -EOPNOTSUPP;
4083
4084         return local->ops->set_sar_specs(&local->hw, sar);
4085 }
4086
4087 const struct cfg80211_ops mac80211_config_ops = {
4088         .add_virtual_intf = ieee80211_add_iface,
4089         .del_virtual_intf = ieee80211_del_iface,
4090         .change_virtual_intf = ieee80211_change_iface,
4091         .start_p2p_device = ieee80211_start_p2p_device,
4092         .stop_p2p_device = ieee80211_stop_p2p_device,
4093         .add_key = ieee80211_add_key,
4094         .del_key = ieee80211_del_key,
4095         .get_key = ieee80211_get_key,
4096         .set_default_key = ieee80211_config_default_key,
4097         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4098         .set_default_beacon_key = ieee80211_config_default_beacon_key,
4099         .start_ap = ieee80211_start_ap,
4100         .change_beacon = ieee80211_change_beacon,
4101         .stop_ap = ieee80211_stop_ap,
4102         .add_station = ieee80211_add_station,
4103         .del_station = ieee80211_del_station,
4104         .change_station = ieee80211_change_station,
4105         .get_station = ieee80211_get_station,
4106         .dump_station = ieee80211_dump_station,
4107         .dump_survey = ieee80211_dump_survey,
4108 #ifdef CONFIG_MAC80211_MESH
4109         .add_mpath = ieee80211_add_mpath,
4110         .del_mpath = ieee80211_del_mpath,
4111         .change_mpath = ieee80211_change_mpath,
4112         .get_mpath = ieee80211_get_mpath,
4113         .dump_mpath = ieee80211_dump_mpath,
4114         .get_mpp = ieee80211_get_mpp,
4115         .dump_mpp = ieee80211_dump_mpp,
4116         .update_mesh_config = ieee80211_update_mesh_config,
4117         .get_mesh_config = ieee80211_get_mesh_config,
4118         .join_mesh = ieee80211_join_mesh,
4119         .leave_mesh = ieee80211_leave_mesh,
4120 #endif
4121         .join_ocb = ieee80211_join_ocb,
4122         .leave_ocb = ieee80211_leave_ocb,
4123         .change_bss = ieee80211_change_bss,
4124         .set_txq_params = ieee80211_set_txq_params,
4125         .set_monitor_channel = ieee80211_set_monitor_channel,
4126         .suspend = ieee80211_suspend,
4127         .resume = ieee80211_resume,
4128         .scan = ieee80211_scan,
4129         .abort_scan = ieee80211_abort_scan,
4130         .sched_scan_start = ieee80211_sched_scan_start,
4131         .sched_scan_stop = ieee80211_sched_scan_stop,
4132         .auth = ieee80211_auth,
4133         .assoc = ieee80211_assoc,
4134         .deauth = ieee80211_deauth,
4135         .disassoc = ieee80211_disassoc,
4136         .join_ibss = ieee80211_join_ibss,
4137         .leave_ibss = ieee80211_leave_ibss,
4138         .set_mcast_rate = ieee80211_set_mcast_rate,
4139         .set_wiphy_params = ieee80211_set_wiphy_params,
4140         .set_tx_power = ieee80211_set_tx_power,
4141         .get_tx_power = ieee80211_get_tx_power,
4142         .rfkill_poll = ieee80211_rfkill_poll,
4143         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4144         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4145         .set_power_mgmt = ieee80211_set_power_mgmt,
4146         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4147         .remain_on_channel = ieee80211_remain_on_channel,
4148         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4149         .mgmt_tx = ieee80211_mgmt_tx,
4150         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4151         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4152         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4153         .update_mgmt_frame_registrations =
4154                 ieee80211_update_mgmt_frame_registrations,
4155         .set_antenna = ieee80211_set_antenna,
4156         .get_antenna = ieee80211_get_antenna,
4157         .set_rekey_data = ieee80211_set_rekey_data,
4158         .tdls_oper = ieee80211_tdls_oper,
4159         .tdls_mgmt = ieee80211_tdls_mgmt,
4160         .tdls_channel_switch = ieee80211_tdls_channel_switch,
4161         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4162         .probe_client = ieee80211_probe_client,
4163         .set_noack_map = ieee80211_set_noack_map,
4164 #ifdef CONFIG_PM
4165         .set_wakeup = ieee80211_set_wakeup,
4166 #endif
4167         .get_channel = ieee80211_cfg_get_channel,
4168         .start_radar_detection = ieee80211_start_radar_detection,
4169         .end_cac = ieee80211_end_cac,
4170         .channel_switch = ieee80211_channel_switch,
4171         .set_qos_map = ieee80211_set_qos_map,
4172         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4173         .add_tx_ts = ieee80211_add_tx_ts,
4174         .del_tx_ts = ieee80211_del_tx_ts,
4175         .start_nan = ieee80211_start_nan,
4176         .stop_nan = ieee80211_stop_nan,
4177         .nan_change_conf = ieee80211_nan_change_conf,
4178         .add_nan_func = ieee80211_add_nan_func,
4179         .del_nan_func = ieee80211_del_nan_func,
4180         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4181         .tx_control_port = ieee80211_tx_control_port,
4182         .get_txq_stats = ieee80211_get_txq_stats,
4183         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4184         .start_pmsr = ieee80211_start_pmsr,
4185         .abort_pmsr = ieee80211_abort_pmsr,
4186         .probe_mesh_link = ieee80211_probe_mesh_link,
4187         .set_tid_config = ieee80211_set_tid_config,
4188         .reset_tid_config = ieee80211_reset_tid_config,
4189         .set_sar_specs = ieee80211_set_sar_specs,
4190 };