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