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) 2018-2019 Intel Corporation
   9  * Copyright (C) 2018 Intel Corporation
  10  */
  11
  12 #include <linux/ieee80211.h>
  13 #include <linux/nl80211.h>
  14 #include <linux/rtnetlink.h>
  15 #include <linux/slab.h>
  16 #include <net/net_namespace.h>
  17 #include <linux/rcupdate.h>
  18 #include <linux/fips.h>
  19 #include <linux/if_ether.h>
  20 #include <net/cfg80211.h>
  21 #include "ieee80211_i.h"
  22 #include "driver-ops.h"
  23 #include "rate.h"
  24 #include "mesh.h"
  25 #include "wme.h"
  26
  27 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
  28                                          struct vif_params *params)
  29 {
  30         bool mu_mimo_groups = false;
  31         bool mu_mimo_follow = false;
  32
  33         if (params->vht_mumimo_groups) {
  34                 u64 membership;
  35
  36                 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
  37
  38                 memcpy(sdata->vif.bss_conf.mu_group.membership,
  39                        params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
  40                 memcpy(sdata->vif.bss_conf.mu_group.position,
  41                        params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
  42                        WLAN_USER_POSITION_LEN);
  43                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
  44                 /* don't care about endianness - just check for 0 */
  45                 memcpy(&membership, params->vht_mumimo_groups,
  46                        WLAN_MEMBERSHIP_LEN);
  47                 mu_mimo_groups = membership != 0;
  48         }
  49
  50         if (params->vht_mumimo_follow_addr) {
  51                 mu_mimo_follow =
  52                         is_valid_ether_addr(params->vht_mumimo_follow_addr);
  53                 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
  54                                 params->vht_mumimo_follow_addr);
  55         }
  56
  57         sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
  58 }
  59
  60 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
  61                                      struct vif_params *params)
  62 {
  63         struct ieee80211_local *local = sdata->local;
  64         struct ieee80211_sub_if_data *monitor_sdata;
  65
  66         /* check flags first */
  67         if (params->flags && ieee80211_sdata_running(sdata)) {
  68                 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
  69
  70                 /*
  71                  * Prohibit MONITOR_FLAG_COOK_FRAMES and
  72                  * MONITOR_FLAG_ACTIVE to be changed while the
  73                  * interface is up.
  74                  * Else we would need to add a lot of cruft
  75                  * to update everything:
  76                  *      cooked_mntrs, monitor and all fif_* counters
  77                  *      reconfigure hardware
  78                  */
  79                 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
  80                         return -EBUSY;
  81         }
  82
  83         /* also validate MU-MIMO change */
  84         monitor_sdata = rtnl_dereference(local->monitor_sdata);
  85
  86         if (!monitor_sdata &&
  87             (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
  88                 return -EOPNOTSUPP;
  89
  90         /* apply all changes now - no failures allowed */
  91
  92         if (monitor_sdata)
  93                 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
  94
  95         if (params->flags) {
  96                 if (ieee80211_sdata_running(sdata)) {
  97                         ieee80211_adjust_monitor_flags(sdata, -1);
  98                         sdata->u.mntr.flags = params->flags;
  99                         ieee80211_adjust_monitor_flags(sdata, 1);
 100
 101                         ieee80211_configure_filter(local);
 102                 } else {
 103                         /*
 104                          * Because the interface is down, ieee80211_do_stop
 105                          * and ieee80211_do_open take care of "everything"
 106                          * mentioned in the comment above.
 107                          */
 108                         sdata->u.mntr.flags = params->flags;
 109                 }
 110         }
 111
 112         return 0;
 113 }
 114
 115 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
 116                                                 const char *name,
 117                                                 unsigned char name_assign_type,
 118                                                 enum nl80211_iftype type,
 119                                                 struct vif_params *params)
 120 {
 121         struct ieee80211_local *local = wiphy_priv(wiphy);
 122         struct wireless_dev *wdev;
 123         struct ieee80211_sub_if_data *sdata;
 124         int err;
 125
 126         err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
 127         if (err)
 128                 return ERR_PTR(err);
 129
 130         sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 131
 132         if (type == NL80211_IFTYPE_MONITOR) {
 133                 err = ieee80211_set_mon_options(sdata, params);
 134                 if (err) {
 135                         ieee80211_if_remove(sdata);
 136                         return NULL;
 137                 }
 138         }
 139
 140         return wdev;
 141 }
 142
 143 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
 144 {
 145         ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
 146
 147         return 0;
 148 }
 149
 150 static int ieee80211_change_iface(struct wiphy *wiphy,
 151                                   struct net_device *dev,
 152                                   enum nl80211_iftype type,
 153                                   struct vif_params *params)
 154 {
 155         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 156         int ret;
 157
 158         ret = ieee80211_if_change_type(sdata, type);
 159         if (ret)
 160                 return ret;
 161
 162         if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
 163                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
 164                 ieee80211_check_fast_rx_iface(sdata);
 165         } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
 166                 sdata->u.mgd.use_4addr = params->use_4addr;
 167         }
 168
 169         if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
 170                 ret = ieee80211_set_mon_options(sdata, params);
 171                 if (ret)
 172                         return ret;
 173         }
 174
 175         return 0;
 176 }
 177
 178 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 179                                       struct wireless_dev *wdev)
 180 {
 181         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 182         int ret;
 183
 184         mutex_lock(&sdata->local->chanctx_mtx);
 185         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 186         mutex_unlock(&sdata->local->chanctx_mtx);
 187         if (ret < 0)
 188                 return ret;
 189
 190         return ieee80211_do_open(wdev, true);
 191 }
 192
 193 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 194                                       struct wireless_dev *wdev)
 195 {
 196         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 197 }
 198
 199 static int ieee80211_start_nan(struct wiphy *wiphy,
 200                                struct wireless_dev *wdev,
 201                                struct cfg80211_nan_conf *conf)
 202 {
 203         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 204         int ret;
 205
 206         mutex_lock(&sdata->local->chanctx_mtx);
 207         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 208         mutex_unlock(&sdata->local->chanctx_mtx);
 209         if (ret < 0)
 210                 return ret;
 211
 212         ret = ieee80211_do_open(wdev, true);
 213         if (ret)
 214                 return ret;
 215
 216         ret = drv_start_nan(sdata->local, sdata, conf);
 217         if (ret)
 218                 ieee80211_sdata_stop(sdata);
 219
 220         sdata->u.nan.conf = *conf;
 221
 222         return ret;
 223 }
 224
 225 static void ieee80211_stop_nan(struct wiphy *wiphy,
 226                                struct wireless_dev *wdev)
 227 {
 228         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 229
 230         drv_stop_nan(sdata->local, sdata);
 231         ieee80211_sdata_stop(sdata);
 232 }
 233
 234 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
 235                                      struct wireless_dev *wdev,
 236                                      struct cfg80211_nan_conf *conf,
 237                                      u32 changes)
 238 {
 239         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 240         struct cfg80211_nan_conf new_conf;
 241         int ret = 0;
 242
 243         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 244                 return -EOPNOTSUPP;
 245
 246         if (!ieee80211_sdata_running(sdata))
 247                 return -ENETDOWN;
 248
 249         new_conf = sdata->u.nan.conf;
 250
 251         if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
 252                 new_conf.master_pref = conf->master_pref;
 253
 254         if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
 255                 new_conf.bands = conf->bands;
 256
 257         ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
 258         if (!ret)
 259                 sdata->u.nan.conf = new_conf;
 260
 261         return ret;
 262 }
 263
 264 static int ieee80211_add_nan_func(struct wiphy *wiphy,
 265                                   struct wireless_dev *wdev,
 266                                   struct cfg80211_nan_func *nan_func)
 267 {
 268         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 269         int ret;
 270
 271         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 272                 return -EOPNOTSUPP;
 273
 274         if (!ieee80211_sdata_running(sdata))
 275                 return -ENETDOWN;
 276
 277         spin_lock_bh(&sdata->u.nan.func_lock);
 278
 279         ret = idr_alloc(&sdata->u.nan.function_inst_ids,
 280                         nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
 281                         GFP_ATOMIC);
 282         spin_unlock_bh(&sdata->u.nan.func_lock);
 283
 284         if (ret < 0)
 285                 return ret;
 286
 287         nan_func->instance_id = ret;
 288
 289         WARN_ON(nan_func->instance_id == 0);
 290
 291         ret = drv_add_nan_func(sdata->local, sdata, nan_func);
 292         if (ret) {
 293                 spin_lock_bh(&sdata->u.nan.func_lock);
 294                 idr_remove(&sdata->u.nan.function_inst_ids,
 295                            nan_func->instance_id);
 296                 spin_unlock_bh(&sdata->u.nan.func_lock);
 297         }
 298
 299         return ret;
 300 }
 301
 302 static struct cfg80211_nan_func *
 303 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
 304                                   u64 cookie)
 305 {
 306         struct cfg80211_nan_func *func;
 307         int id;
 308
 309         lockdep_assert_held(&sdata->u.nan.func_lock);
 310
 311         idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
 312                 if (func->cookie == cookie)
 313                         return func;
 314         }
 315
 316         return NULL;
 317 }
 318
 319 static void ieee80211_del_nan_func(struct wiphy *wiphy,
 320                                   struct wireless_dev *wdev, u64 cookie)
 321 {
 322         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 323         struct cfg80211_nan_func *func;
 324         u8 instance_id = 0;
 325
 326         if (sdata->vif.type != NL80211_IFTYPE_NAN ||
 327             !ieee80211_sdata_running(sdata))
 328                 return;
 329
 330         spin_lock_bh(&sdata->u.nan.func_lock);
 331
 332         func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
 333         if (func)
 334                 instance_id = func->instance_id;
 335
 336         spin_unlock_bh(&sdata->u.nan.func_lock);
 337
 338         if (instance_id)
 339                 drv_del_nan_func(sdata->local, sdata, instance_id);
 340 }
 341
 342 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 343                                   struct net_device *dev,
 344                                   u16 noack_map)
 345 {
 346         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 347
 348         sdata->noack_map = noack_map;
 349
 350         ieee80211_check_fast_xmit_iface(sdata);
 351
 352         return 0;
 353 }
 354
 355 static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
 356                             const u8 *mac_addr, u8 key_idx)
 357 {
 358         struct ieee80211_local *local = sdata->local;
 359         struct ieee80211_key *key;
 360         struct sta_info *sta;
 361         int ret = -EINVAL;
 362
 363         if (!wiphy_ext_feature_isset(local->hw.wiphy,
 364                                      NL80211_EXT_FEATURE_EXT_KEY_ID))
 365                 return -EINVAL;
 366
 367         sta = sta_info_get_bss(sdata, mac_addr);
 368
 369         if (!sta)
 370                 return -EINVAL;
 371
 372         if (sta->ptk_idx == key_idx)
 373                 return 0;
 374
 375         mutex_lock(&local->key_mtx);
 376         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 377
 378         if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
 379                 ret = ieee80211_set_tx_key(key);
 380
 381         mutex_unlock(&local->key_mtx);
 382         return ret;
 383 }
 384
 385 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 386                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 387                              struct key_params *params)
 388 {
 389         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 390         struct ieee80211_local *local = sdata->local;
 391         struct sta_info *sta = NULL;
 392         const struct ieee80211_cipher_scheme *cs = NULL;
 393         struct ieee80211_key *key;
 394         int err;
 395
 396         if (!ieee80211_sdata_running(sdata))
 397                 return -ENETDOWN;
 398
 399         if (pairwise && params->mode == NL80211_KEY_SET_TX)
 400                 return ieee80211_set_tx(sdata, mac_addr, key_idx);
 401
 402         /* reject WEP and TKIP keys if WEP failed to initialize */
 403         switch (params->cipher) {
 404         case WLAN_CIPHER_SUITE_WEP40:
 405         case WLAN_CIPHER_SUITE_TKIP:
 406         case WLAN_CIPHER_SUITE_WEP104:
 407                 if (WARN_ON_ONCE(fips_enabled))
 408                         return -EINVAL;
 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                         key = rcu_dereference(sta->gtk[key_idx]);
 573         } else
 574                 key = rcu_dereference(sdata->keys[key_idx]);
 575
 576         if (!key)
 577                 goto out;
 578
 579         memset(&params, 0, sizeof(params));
 580
 581         params.cipher = key->conf.cipher;
 582
 583         switch (key->conf.cipher) {
 584         case WLAN_CIPHER_SUITE_TKIP:
 585                 pn64 = atomic64_read(&key->conf.tx_pn);
 586                 iv32 = TKIP_PN_TO_IV32(pn64);
 587                 iv16 = TKIP_PN_TO_IV16(pn64);
 588
 589                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 590                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 591                         drv_get_key_seq(sdata->local, key, &kseq);
 592                         iv32 = kseq.tkip.iv32;
 593                         iv16 = kseq.tkip.iv16;
 594                 }
 595
 596                 seq[0] = iv16 & 0xff;
 597                 seq[1] = (iv16 >> 8) & 0xff;
 598                 seq[2] = iv32 & 0xff;
 599                 seq[3] = (iv32 >> 8) & 0xff;
 600                 seq[4] = (iv32 >> 16) & 0xff;
 601                 seq[5] = (iv32 >> 24) & 0xff;
 602                 params.seq = seq;
 603                 params.seq_len = 6;
 604                 break;
 605         case WLAN_CIPHER_SUITE_CCMP:
 606         case WLAN_CIPHER_SUITE_CCMP_256:
 607         case WLAN_CIPHER_SUITE_AES_CMAC:
 608         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 609                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 610                              offsetof(typeof(kseq), aes_cmac));
 611                 /* fall through */
 612         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 613         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 614                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 615                              offsetof(typeof(kseq), aes_gmac));
 616                 /* fall through */
 617         case WLAN_CIPHER_SUITE_GCMP:
 618         case WLAN_CIPHER_SUITE_GCMP_256:
 619                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 620                              offsetof(typeof(kseq), gcmp));
 621
 622                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 623                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 624                         drv_get_key_seq(sdata->local, key, &kseq);
 625                         memcpy(seq, kseq.ccmp.pn, 6);
 626                 } else {
 627                         pn64 = atomic64_read(&key->conf.tx_pn);
 628                         seq[0] = pn64;
 629                         seq[1] = pn64 >> 8;
 630                         seq[2] = pn64 >> 16;
 631                         seq[3] = pn64 >> 24;
 632                         seq[4] = pn64 >> 32;
 633                         seq[5] = pn64 >> 40;
 634                 }
 635                 params.seq = seq;
 636                 params.seq_len = 6;
 637                 break;
 638         default:
 639                 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
 640                         break;
 641                 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
 642                         break;
 643                 drv_get_key_seq(sdata->local, key, &kseq);
 644                 params.seq = kseq.hw.seq;
 645                 params.seq_len = kseq.hw.seq_len;
 646                 break;
 647         }
 648
 649         params.key = key->conf.key;
 650         params.key_len = key->conf.keylen;
 651
 652         callback(cookie, &params);
 653         err = 0;
 654
 655  out:
 656         rcu_read_unlock();
 657         return err;
 658 }
 659
 660 static int ieee80211_config_default_key(struct wiphy *wiphy,
 661                                         struct net_device *dev,
 662                                         u8 key_idx, bool uni,
 663                                         bool multi)
 664 {
 665         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 666
 667         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 668
 669         return 0;
 670 }
 671
 672 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 673                                              struct net_device *dev,
 674                                              u8 key_idx)
 675 {
 676         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 677
 678         ieee80211_set_default_mgmt_key(sdata, key_idx);
 679
 680         return 0;
 681 }
 682
 683 void sta_set_rate_info_tx(struct sta_info *sta,
 684                           const struct ieee80211_tx_rate *rate,
 685                           struct rate_info *rinfo)
 686 {
 687         rinfo->flags = 0;
 688         if (rate->flags & IEEE80211_TX_RC_MCS) {
 689                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 690                 rinfo->mcs = rate->idx;
 691         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 692                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 693                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 694                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 695         } else {
 696                 struct ieee80211_supported_band *sband;
 697                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 698                 u16 brate;
 699
 700                 sband = ieee80211_get_sband(sta->sdata);
 701                 if (sband) {
 702                         brate = sband->bitrates[rate->idx].bitrate;
 703                         rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 704                 }
 705         }
 706         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 707                 rinfo->bw = RATE_INFO_BW_40;
 708         else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 709                 rinfo->bw = RATE_INFO_BW_80;
 710         else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 711                 rinfo->bw = RATE_INFO_BW_160;
 712         else
 713                 rinfo->bw = RATE_INFO_BW_20;
 714         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 715                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 716 }
 717
 718 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 719                                   int idx, u8 *mac, struct station_info *sinfo)
 720 {
 721         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 722         struct ieee80211_local *local = sdata->local;
 723         struct sta_info *sta;
 724         int ret = -ENOENT;
 725
 726         mutex_lock(&local->sta_mtx);
 727
 728         sta = sta_info_get_by_idx(sdata, idx);
 729         if (sta) {
 730                 ret = 0;
 731                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 732                 sta_set_sinfo(sta, sinfo, true);
 733         }
 734
 735         mutex_unlock(&local->sta_mtx);
 736
 737         return ret;
 738 }
 739
 740 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 741                                  int idx, struct survey_info *survey)
 742 {
 743         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 744
 745         return drv_get_survey(local, idx, survey);
 746 }
 747
 748 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 749                                  const u8 *mac, struct station_info *sinfo)
 750 {
 751         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 752         struct ieee80211_local *local = sdata->local;
 753         struct sta_info *sta;
 754         int ret = -ENOENT;
 755
 756         mutex_lock(&local->sta_mtx);
 757
 758         sta = sta_info_get_bss(sdata, mac);
 759         if (sta) {
 760                 ret = 0;
 761                 sta_set_sinfo(sta, sinfo, true);
 762         }
 763
 764         mutex_unlock(&local->sta_mtx);
 765
 766         return ret;
 767 }
 768
 769 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 770                                          struct cfg80211_chan_def *chandef)
 771 {
 772         struct ieee80211_local *local = wiphy_priv(wiphy);
 773         struct ieee80211_sub_if_data *sdata;
 774         int ret = 0;
 775
 776         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 777                 return 0;
 778
 779         mutex_lock(&local->mtx);
 780         if (local->use_chanctx) {
 781                 sdata = rtnl_dereference(local->monitor_sdata);
 782                 if (sdata) {
 783                         ieee80211_vif_release_channel(sdata);
 784                         ret = ieee80211_vif_use_channel(sdata, chandef,
 785                                         IEEE80211_CHANCTX_EXCLUSIVE);
 786                 }
 787         } else if (local->open_count == local->monitors) {
 788                 local->_oper_chandef = *chandef;
 789                 ieee80211_hw_config(local, 0);
 790         }
 791
 792         if (ret == 0)
 793                 local->monitor_chandef = *chandef;
 794         mutex_unlock(&local->mtx);
 795
 796         return ret;
 797 }
 798
 799 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 800                                     const u8 *resp, size_t resp_len,
 801                                     const struct ieee80211_csa_settings *csa)
 802 {
 803         struct probe_resp *new, *old;
 804
 805         if (!resp || !resp_len)
 806                 return 1;
 807
 808         old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 809
 810         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 811         if (!new)
 812                 return -ENOMEM;
 813
 814         new->len = resp_len;
 815         memcpy(new->data, resp, resp_len);
 816
 817         if (csa)
 818                 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
 819                        csa->n_counter_offsets_presp *
 820                        sizeof(new->csa_counter_offsets[0]));
 821
 822         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 823         if (old)
 824                 kfree_rcu(old, rcu_head);
 825
 826         return 0;
 827 }
 828
 829 static int ieee80211_set_ftm_responder_params(
 830                                 struct ieee80211_sub_if_data *sdata,
 831                                 const u8 *lci, size_t lci_len,
 832                                 const u8 *civicloc, size_t civicloc_len)
 833 {
 834         struct ieee80211_ftm_responder_params *new, *old;
 835         struct ieee80211_bss_conf *bss_conf;
 836         u8 *pos;
 837         int len;
 838
 839         if (!lci_len && !civicloc_len)
 840                 return 0;
 841
 842         bss_conf = &sdata->vif.bss_conf;
 843         old = bss_conf->ftmr_params;
 844         len = lci_len + civicloc_len;
 845
 846         new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
 847         if (!new)
 848                 return -ENOMEM;
 849
 850         pos = (u8 *)(new + 1);
 851         if (lci_len) {
 852                 new->lci_len = lci_len;
 853                 new->lci = pos;
 854                 memcpy(pos, lci, lci_len);
 855                 pos += lci_len;
 856         }
 857
 858         if (civicloc_len) {
 859                 new->civicloc_len = civicloc_len;
 860                 new->civicloc = pos;
 861                 memcpy(pos, civicloc, civicloc_len);
 862                 pos += civicloc_len;
 863         }
 864
 865         bss_conf->ftmr_params = new;
 866         kfree(old);
 867
 868         return 0;
 869 }
 870
 871 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 872                                    struct cfg80211_beacon_data *params,
 873                                    const struct ieee80211_csa_settings *csa)
 874 {
 875         struct beacon_data *new, *old;
 876         int new_head_len, new_tail_len;
 877         int size, err;
 878         u32 changed = BSS_CHANGED_BEACON;
 879
 880         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 881
 882
 883         /* Need to have a beacon head if we don't have one yet */
 884         if (!params->head && !old)
 885                 return -EINVAL;
 886
 887         /* new or old head? */
 888         if (params->head)
 889                 new_head_len = params->head_len;
 890         else
 891                 new_head_len = old->head_len;
 892
 893         /* new or old tail? */
 894         if (params->tail || !old)
 895                 /* params->tail_len will be zero for !params->tail */
 896                 new_tail_len = params->tail_len;
 897         else
 898                 new_tail_len = old->tail_len;
 899
 900         size = sizeof(*new) + new_head_len + new_tail_len;
 901
 902         new = kzalloc(size, GFP_KERNEL);
 903         if (!new)
 904                 return -ENOMEM;
 905
 906         /* start filling the new info now */
 907
 908         /*
 909          * pointers go into the block we allocated,
 910          * memory is | beacon_data | head | tail |
 911          */
 912         new->head = ((u8 *) new) + sizeof(*new);
 913         new->tail = new->head + new_head_len;
 914         new->head_len = new_head_len;
 915         new->tail_len = new_tail_len;
 916
 917         if (csa) {
 918                 new->csa_current_counter = csa->count;
 919                 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
 920                        csa->n_counter_offsets_beacon *
 921                        sizeof(new->csa_counter_offsets[0]));
 922         }
 923
 924         /* copy in head */
 925         if (params->head)
 926                 memcpy(new->head, params->head, new_head_len);
 927         else
 928                 memcpy(new->head, old->head, new_head_len);
 929
 930         /* copy in optional tail */
 931         if (params->tail)
 932                 memcpy(new->tail, params->tail, new_tail_len);
 933         else
 934                 if (old)
 935                         memcpy(new->tail, old->tail, new_tail_len);
 936
 937         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
 938                                        params->probe_resp_len, csa);
 939         if (err < 0) {
 940                 kfree(new);
 941                 return err;
 942         }
 943         if (err == 0)
 944                 changed |= BSS_CHANGED_AP_PROBE_RESP;
 945
 946         if (params->ftm_responder != -1) {
 947                 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
 948                 err = ieee80211_set_ftm_responder_params(sdata,
 949                                                          params->lci,
 950                                                          params->lci_len,
 951                                                          params->civicloc,
 952                                                          params->civicloc_len);
 953
 954                 if (err < 0) {
 955                         kfree(new);
 956                         return err;
 957                 }
 958
 959                 changed |= BSS_CHANGED_FTM_RESPONDER;
 960         }
 961
 962         rcu_assign_pointer(sdata->u.ap.beacon, new);
 963
 964         if (old)
 965                 kfree_rcu(old, rcu_head);
 966
 967         return changed;
 968 }
 969
 970 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 971                               struct cfg80211_ap_settings *params)
 972 {
 973         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 974         struct ieee80211_local *local = sdata->local;
 975         struct beacon_data *old;
 976         struct ieee80211_sub_if_data *vlan;
 977         u32 changed = BSS_CHANGED_BEACON_INT |
 978                       BSS_CHANGED_BEACON_ENABLED |
 979                       BSS_CHANGED_BEACON |
 980                       BSS_CHANGED_SSID |
 981                       BSS_CHANGED_P2P_PS |
 982                       BSS_CHANGED_TXPOWER |
 983                       BSS_CHANGED_TWT;
 984         int err;
 985         int prev_beacon_int;
 986
 987         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 988         if (old)
 989                 return -EALREADY;
 990
 991         switch (params->smps_mode) {
 992         case NL80211_SMPS_OFF:
 993                 sdata->smps_mode = IEEE80211_SMPS_OFF;
 994                 break;
 995         case NL80211_SMPS_STATIC:
 996                 sdata->smps_mode = IEEE80211_SMPS_STATIC;
 997                 break;
 998         case NL80211_SMPS_DYNAMIC:
 999                 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
1000                 break;
1001         default:
1002                 return -EINVAL;
1003         }
1004         sdata->u.ap.req_smps = sdata->smps_mode;
1005
1006         sdata->needed_rx_chains = sdata->local->rx_chains;
1007
1008         prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1009         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1010
1011         if (params->he_cap)
1012                 sdata->vif.bss_conf.he_support = true;
1013
1014         mutex_lock(&local->mtx);
1015         err = ieee80211_vif_use_channel(sdata, &params->chandef,
1016                                         IEEE80211_CHANCTX_SHARED);
1017         if (!err)
1018                 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1019         mutex_unlock(&local->mtx);
1020         if (err) {
1021                 sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1022                 return err;
1023         }
1024
1025         /*
1026          * Apply control port protocol, this allows us to
1027          * not encrypt dynamic WEP control frames.
1028          */
1029         sdata->control_port_protocol = params->crypto.control_port_ethertype;
1030         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1031         sdata->control_port_over_nl80211 =
1032                                 params->crypto.control_port_over_nl80211;
1033         sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1034                                                         &params->crypto,
1035                                                         sdata->vif.type);
1036
1037         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1038                 vlan->control_port_protocol =
1039                         params->crypto.control_port_ethertype;
1040                 vlan->control_port_no_encrypt =
1041                         params->crypto.control_port_no_encrypt;
1042                 vlan->control_port_over_nl80211 =
1043                         params->crypto.control_port_over_nl80211;
1044                 vlan->encrypt_headroom =
1045                         ieee80211_cs_headroom(sdata->local,
1046                                               &params->crypto,
1047                                               vlan->vif.type);
1048         }
1049
1050         sdata->vif.bss_conf.dtim_period = params->dtim_period;
1051         sdata->vif.bss_conf.enable_beacon = true;
1052         sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1053         sdata->vif.bss_conf.twt_responder = params->twt_responder;
1054
1055         sdata->vif.bss_conf.ssid_len = params->ssid_len;
1056         if (params->ssid_len)
1057                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1058                        params->ssid_len);
1059         sdata->vif.bss_conf.hidden_ssid =
1060                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1061
1062         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1063                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1064         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1065                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1066         if (params->p2p_opp_ps)
1067                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1068                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1069
1070         err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
1071         if (err < 0) {
1072                 ieee80211_vif_release_channel(sdata);
1073                 return err;
1074         }
1075         changed |= err;
1076
1077         err = drv_start_ap(sdata->local, sdata);
1078         if (err) {
1079                 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1080
1081                 if (old)
1082                         kfree_rcu(old, rcu_head);
1083                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1084                 ieee80211_vif_release_channel(sdata);
1085                 return err;
1086         }
1087
1088         ieee80211_recalc_dtim(local, sdata);
1089         ieee80211_bss_info_change_notify(sdata, changed);
1090
1091         netif_carrier_on(dev);
1092         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1093                 netif_carrier_on(vlan->dev);
1094
1095         return 0;
1096 }
1097
1098 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1099                                    struct cfg80211_beacon_data *params)
1100 {
1101         struct ieee80211_sub_if_data *sdata;
1102         struct beacon_data *old;
1103         int err;
1104
1105         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1106         sdata_assert_lock(sdata);
1107
1108         /* don't allow changing the beacon while CSA is in place - offset
1109          * of channel switch counter may change
1110          */
1111         if (sdata->vif.csa_active)
1112                 return -EBUSY;
1113
1114         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1115         if (!old)
1116                 return -ENOENT;
1117
1118         err = ieee80211_assign_beacon(sdata, params, NULL);
1119         if (err < 0)
1120                 return err;
1121         ieee80211_bss_info_change_notify(sdata, err);
1122         return 0;
1123 }
1124
1125 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1126 {
1127         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1128         struct ieee80211_sub_if_data *vlan;
1129         struct ieee80211_local *local = sdata->local;
1130         struct beacon_data *old_beacon;
1131         struct probe_resp *old_probe_resp;
1132         struct cfg80211_chan_def chandef;
1133
1134         sdata_assert_lock(sdata);
1135
1136         old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1137         if (!old_beacon)
1138                 return -ENOENT;
1139         old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1140
1141         /* abort any running channel switch */
1142         mutex_lock(&local->mtx);
1143         sdata->vif.csa_active = false;
1144         if (sdata->csa_block_tx) {
1145                 ieee80211_wake_vif_queues(local, sdata,
1146                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1147                 sdata->csa_block_tx = false;
1148         }
1149
1150         mutex_unlock(&local->mtx);
1151
1152         kfree(sdata->u.ap.next_beacon);
1153         sdata->u.ap.next_beacon = NULL;
1154
1155         /* turn off carrier for this interface and dependent VLANs */
1156         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1157                 netif_carrier_off(vlan->dev);
1158         netif_carrier_off(dev);
1159
1160         /* remove beacon and probe response */
1161         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1162         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1163         kfree_rcu(old_beacon, rcu_head);
1164         if (old_probe_resp)
1165                 kfree_rcu(old_probe_resp, rcu_head);
1166         sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1167
1168         kfree(sdata->vif.bss_conf.ftmr_params);
1169         sdata->vif.bss_conf.ftmr_params = NULL;
1170
1171         __sta_info_flush(sdata, true);
1172         ieee80211_free_keys(sdata, true);
1173
1174         sdata->vif.bss_conf.enable_beacon = false;
1175         sdata->vif.bss_conf.ssid_len = 0;
1176         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1177         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1178
1179         if (sdata->wdev.cac_started) {
1180                 chandef = sdata->vif.bss_conf.chandef;
1181                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1182                 cfg80211_cac_event(sdata->dev, &chandef,
1183                                    NL80211_RADAR_CAC_ABORTED,
1184                                    GFP_KERNEL);
1185         }
1186
1187         drv_stop_ap(sdata->local, sdata);
1188
1189         /* free all potentially still buffered bcast frames */
1190         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1191         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1192
1193         mutex_lock(&local->mtx);
1194         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1195         ieee80211_vif_release_channel(sdata);
1196         mutex_unlock(&local->mtx);
1197
1198         return 0;
1199 }
1200
1201 static int sta_apply_auth_flags(struct ieee80211_local *local,
1202                                 struct sta_info *sta,
1203                                 u32 mask, u32 set)
1204 {
1205         int ret;
1206
1207         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1208             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1209             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1210                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1211                 if (ret)
1212                         return ret;
1213         }
1214
1215         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1216             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1217             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1218                 /*
1219                  * When peer becomes associated, init rate control as
1220                  * well. Some drivers require rate control initialized
1221                  * before drv_sta_state() is called.
1222                  */
1223                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1224                         rate_control_rate_init(sta);
1225
1226                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1227                 if (ret)
1228                         return ret;
1229         }
1230
1231         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1232                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1233                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1234                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1235                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1236                 else
1237                         ret = 0;
1238                 if (ret)
1239                         return ret;
1240         }
1241
1242         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1243             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1244             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1245                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1246                 if (ret)
1247                         return ret;
1248         }
1249
1250         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1251             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1252             test_sta_flag(sta, WLAN_STA_AUTH)) {
1253                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1254                 if (ret)
1255                         return ret;
1256         }
1257
1258         return 0;
1259 }
1260
1261 static void sta_apply_mesh_params(struct ieee80211_local *local,
1262                                   struct sta_info *sta,
1263                                   struct station_parameters *params)
1264 {
1265 #ifdef CONFIG_MAC80211_MESH
1266         struct ieee80211_sub_if_data *sdata = sta->sdata;
1267         u32 changed = 0;
1268
1269         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1270                 switch (params->plink_state) {
1271                 case NL80211_PLINK_ESTAB:
1272                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1273                                 changed = mesh_plink_inc_estab_count(sdata);
1274                         sta->mesh->plink_state = params->plink_state;
1275                         sta->mesh->aid = params->peer_aid;
1276
1277                         ieee80211_mps_sta_status_update(sta);
1278                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1279                                       sdata->u.mesh.mshcfg.power_mode);
1280
1281                         ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1282                         /* init at low value */
1283                         ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1284
1285                         break;
1286                 case NL80211_PLINK_LISTEN:
1287                 case NL80211_PLINK_BLOCKED:
1288                 case NL80211_PLINK_OPN_SNT:
1289                 case NL80211_PLINK_OPN_RCVD:
1290                 case NL80211_PLINK_CNF_RCVD:
1291                 case NL80211_PLINK_HOLDING:
1292                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1293                                 changed = mesh_plink_dec_estab_count(sdata);
1294                         sta->mesh->plink_state = params->plink_state;
1295
1296                         ieee80211_mps_sta_status_update(sta);
1297                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1298                                         NL80211_MESH_POWER_UNKNOWN);
1299                         break;
1300                 default:
1301                         /*  nothing  */
1302                         break;
1303                 }
1304         }
1305
1306         switch (params->plink_action) {
1307         case NL80211_PLINK_ACTION_NO_ACTION:
1308                 /* nothing */
1309                 break;
1310         case NL80211_PLINK_ACTION_OPEN:
1311                 changed |= mesh_plink_open(sta);
1312                 break;
1313         case NL80211_PLINK_ACTION_BLOCK:
1314                 changed |= mesh_plink_block(sta);
1315                 break;
1316         }
1317
1318         if (params->local_pm)
1319                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1320                                                           params->local_pm);
1321
1322         ieee80211_mbss_info_change_notify(sdata, changed);
1323 #endif
1324 }
1325
1326 static int sta_apply_parameters(struct ieee80211_local *local,
1327                                 struct sta_info *sta,
1328                                 struct station_parameters *params)
1329 {
1330         int ret = 0;
1331         struct ieee80211_supported_band *sband;
1332         struct ieee80211_sub_if_data *sdata = sta->sdata;
1333         u32 mask, set;
1334
1335         sband = ieee80211_get_sband(sdata);
1336         if (!sband)
1337                 return -EINVAL;
1338
1339         mask = params->sta_flags_mask;
1340         set = params->sta_flags_set;
1341
1342         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1343                 /*
1344                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1345                  * API but must follow AUTHENTICATED for driver state.
1346                  */
1347                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1348                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1349                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1350                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1351         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1352                 /*
1353                  * TDLS -- everything follows authorized, but
1354                  * only becoming authorized is possible, not
1355                  * going back
1356                  */
1357                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1358                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1359                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1360                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1361                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1362                 }
1363         }
1364
1365         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1366             local->hw.queues >= IEEE80211_NUM_ACS)
1367                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1368
1369         /* auth flags will be set later for TDLS,
1370          * and for unassociated stations that move to assocaited */
1371         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1372             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1373               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1374                 ret = sta_apply_auth_flags(local, sta, mask, set);
1375                 if (ret)
1376                         return ret;
1377         }
1378
1379         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1380                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1381                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1382                 else
1383                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1384         }
1385
1386         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1387                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1388                 if (set & BIT(NL80211_STA_FLAG_MFP))
1389                         set_sta_flag(sta, WLAN_STA_MFP);
1390                 else
1391                         clear_sta_flag(sta, WLAN_STA_MFP);
1392         }
1393
1394         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1395                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1396                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1397                 else
1398                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1399         }
1400
1401         /* mark TDLS channel switch support, if the AP allows it */
1402         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1403             !sdata->u.mgd.tdls_chan_switch_prohibited &&
1404             params->ext_capab_len >= 4 &&
1405             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1406                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1407
1408         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1409             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1410             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1411             params->ext_capab_len >= 8 &&
1412             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1413                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1414
1415         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1416                 sta->sta.uapsd_queues = params->uapsd_queues;
1417                 sta->sta.max_sp = params->max_sp;
1418         }
1419
1420         /* The sender might not have sent the last bit, consider it to be 0 */
1421         if (params->ext_capab_len >= 8) {
1422                 u8 val = (params->ext_capab[7] &
1423                           WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1424
1425                 /* we did get all the bits, take the MSB as well */
1426                 if (params->ext_capab_len >= 9) {
1427                         u8 val_msb = params->ext_capab[8] &
1428                                 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1429                         val_msb <<= 1;
1430                         val |= val_msb;
1431                 }
1432
1433                 switch (val) {
1434                 case 1:
1435                         sta->sta.max_amsdu_subframes = 32;
1436                         break;
1437                 case 2:
1438                         sta->sta.max_amsdu_subframes = 16;
1439                         break;
1440                 case 3:
1441                         sta->sta.max_amsdu_subframes = 8;
1442                         break;
1443                 default:
1444                         sta->sta.max_amsdu_subframes = 0;
1445                 }
1446         }
1447
1448         /*
1449          * cfg80211 validates this (1-2007) and allows setting the AID
1450          * only when creating a new station entry
1451          */
1452         if (params->aid)
1453                 sta->sta.aid = params->aid;
1454
1455         /*
1456          * Some of the following updates would be racy if called on an
1457          * existing station, via ieee80211_change_station(). However,
1458          * all such changes are rejected by cfg80211 except for updates
1459          * changing the supported rates on an existing but not yet used
1460          * TDLS peer.
1461          */
1462
1463         if (params->listen_interval >= 0)
1464                 sta->listen_interval = params->listen_interval;
1465
1466         if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1467                 sta->sta.txpwr.type = params->txpwr.type;
1468                 if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1469                         sta->sta.txpwr.power = params->txpwr.power;
1470                 ret = drv_sta_set_txpwr(local, sdata, sta);
1471                 if (ret)
1472                         return ret;
1473         }
1474
1475         if (params->supported_rates && params->supported_rates_len) {
1476                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1477                                          sband, params->supported_rates,
1478                                          params->supported_rates_len,
1479                                          &sta->sta.supp_rates[sband->band]);
1480         }
1481
1482         if (params->ht_capa)
1483                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1484                                                   params->ht_capa, sta);
1485
1486         /* VHT can override some HT caps such as the A-MSDU max length */
1487         if (params->vht_capa)
1488                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1489                                                     params->vht_capa, sta);
1490
1491         if (params->he_capa)
1492                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1493                                                   (void *)params->he_capa,
1494                                                   params->he_capa_len, sta);
1495
1496         if (params->opmode_notif_used) {
1497                 /* returned value is only needed for rc update, but the
1498                  * rc isn't initialized here yet, so ignore it
1499                  */
1500                 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1501                                               sband->band);
1502         }
1503
1504         if (params->support_p2p_ps >= 0)
1505                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1506
1507         if (ieee80211_vif_is_mesh(&sdata->vif))
1508                 sta_apply_mesh_params(local, sta, params);
1509
1510         if (params->airtime_weight)
1511                 sta->airtime_weight = params->airtime_weight;
1512
1513         /* set the STA state after all sta info from usermode has been set */
1514         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1515             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1516                 ret = sta_apply_auth_flags(local, sta, mask, set);
1517                 if (ret)
1518                         return ret;
1519         }
1520
1521         return 0;
1522 }
1523
1524 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1525                                  const u8 *mac,
1526                                  struct station_parameters *params)
1527 {
1528         struct ieee80211_local *local = wiphy_priv(wiphy);
1529         struct sta_info *sta;
1530         struct ieee80211_sub_if_data *sdata;
1531         int err;
1532
1533         if (params->vlan) {
1534                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1535
1536                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1537                     sdata->vif.type != NL80211_IFTYPE_AP)
1538                         return -EINVAL;
1539         } else
1540                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1541
1542         if (ether_addr_equal(mac, sdata->vif.addr))
1543                 return -EINVAL;
1544
1545         if (is_multicast_ether_addr(mac))
1546                 return -EINVAL;
1547
1548         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1549             sdata->vif.type == NL80211_IFTYPE_STATION &&
1550             !sdata->u.mgd.associated)
1551                 return -EINVAL;
1552
1553         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1554         if (!sta)
1555                 return -ENOMEM;
1556
1557         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1558                 sta->sta.tdls = true;
1559
1560         err = sta_apply_parameters(local, sta, params);
1561         if (err) {
1562                 sta_info_free(local, sta);
1563                 return err;
1564         }
1565
1566         /*
1567          * for TDLS and for unassociated station, rate control should be
1568          * initialized only when rates are known and station is marked
1569          * authorized/associated
1570          */
1571         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1572             test_sta_flag(sta, WLAN_STA_ASSOC))
1573                 rate_control_rate_init(sta);
1574
1575         err = sta_info_insert_rcu(sta);
1576         if (err) {
1577                 rcu_read_unlock();
1578                 return err;
1579         }
1580
1581         rcu_read_unlock();
1582
1583         return 0;
1584 }
1585
1586 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1587                                  struct station_del_parameters *params)
1588 {
1589         struct ieee80211_sub_if_data *sdata;
1590
1591         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1592
1593         if (params->mac)
1594                 return sta_info_destroy_addr_bss(sdata, params->mac);
1595
1596         sta_info_flush(sdata);
1597         return 0;
1598 }
1599
1600 static int ieee80211_change_station(struct wiphy *wiphy,
1601                                     struct net_device *dev, const u8 *mac,
1602                                     struct station_parameters *params)
1603 {
1604         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1605         struct ieee80211_local *local = wiphy_priv(wiphy);
1606         struct sta_info *sta;
1607         struct ieee80211_sub_if_data *vlansdata;
1608         enum cfg80211_station_type statype;
1609         int err;
1610
1611         mutex_lock(&local->sta_mtx);
1612
1613         sta = sta_info_get_bss(sdata, mac);
1614         if (!sta) {
1615                 err = -ENOENT;
1616                 goto out_err;
1617         }
1618
1619         switch (sdata->vif.type) {
1620         case NL80211_IFTYPE_MESH_POINT:
1621                 if (sdata->u.mesh.user_mpm)
1622                         statype = CFG80211_STA_MESH_PEER_USER;
1623                 else
1624                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1625                 break;
1626         case NL80211_IFTYPE_ADHOC:
1627                 statype = CFG80211_STA_IBSS;
1628                 break;
1629         case NL80211_IFTYPE_STATION:
1630                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1631                         statype = CFG80211_STA_AP_STA;
1632                         break;
1633                 }
1634                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1635                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1636                 else
1637                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1638                 break;
1639         case NL80211_IFTYPE_AP:
1640         case NL80211_IFTYPE_AP_VLAN:
1641                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1642                         statype = CFG80211_STA_AP_CLIENT;
1643                 else
1644                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1645                 break;
1646         default:
1647                 err = -EOPNOTSUPP;
1648                 goto out_err;
1649         }
1650
1651         err = cfg80211_check_station_change(wiphy, params, statype);
1652         if (err)
1653                 goto out_err;
1654
1655         if (params->vlan && params->vlan != sta->sdata->dev) {
1656                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1657
1658                 if (params->vlan->ieee80211_ptr->use_4addr) {
1659                         if (vlansdata->u.vlan.sta) {
1660                                 err = -EBUSY;
1661                                 goto out_err;
1662                         }
1663
1664                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1665                         __ieee80211_check_fast_rx_iface(vlansdata);
1666                 }
1667
1668                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1669                     sta->sdata->u.vlan.sta)
1670                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1671
1672                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1673                         ieee80211_vif_dec_num_mcast(sta->sdata);
1674
1675                 sta->sdata = vlansdata;
1676                 ieee80211_check_fast_xmit(sta);
1677
1678                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1679                         ieee80211_vif_inc_num_mcast(sta->sdata);
1680                         cfg80211_send_layer2_update(sta->sdata->dev,
1681                                                     sta->sta.addr);
1682                 }
1683         }
1684
1685         err = sta_apply_parameters(local, sta, params);
1686         if (err)
1687                 goto out_err;
1688
1689         mutex_unlock(&local->sta_mtx);
1690
1691         if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1692              sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1693             sta->known_smps_mode != sta->sdata->bss->req_smps &&
1694             test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1695             sta_info_tx_streams(sta) != 1) {
1696                 ht_dbg(sta->sdata,
1697                        "%pM just authorized and MIMO capable - update SMPS\n",
1698                        sta->sta.addr);
1699                 ieee80211_send_smps_action(sta->sdata,
1700                         sta->sdata->bss->req_smps,
1701                         sta->sta.addr,
1702                         sta->sdata->vif.bss_conf.bssid);
1703         }
1704
1705         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1706             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1707                 ieee80211_recalc_ps(local);
1708                 ieee80211_recalc_ps_vif(sdata);
1709         }
1710
1711         return 0;
1712 out_err:
1713         mutex_unlock(&local->sta_mtx);
1714         return err;
1715 }
1716
1717 #ifdef CONFIG_MAC80211_MESH
1718 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1719                                const u8 *dst, const u8 *next_hop)
1720 {
1721         struct ieee80211_sub_if_data *sdata;
1722         struct mesh_path *mpath;
1723         struct sta_info *sta;
1724
1725         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1726
1727         rcu_read_lock();
1728         sta = sta_info_get(sdata, next_hop);
1729         if (!sta) {
1730                 rcu_read_unlock();
1731                 return -ENOENT;
1732         }
1733
1734         mpath = mesh_path_add(sdata, dst);
1735         if (IS_ERR(mpath)) {
1736                 rcu_read_unlock();
1737                 return PTR_ERR(mpath);
1738         }
1739
1740         mesh_path_fix_nexthop(mpath, sta);
1741
1742         rcu_read_unlock();
1743         return 0;
1744 }
1745
1746 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1747                                const u8 *dst)
1748 {
1749         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1750
1751         if (dst)
1752                 return mesh_path_del(sdata, dst);
1753
1754         mesh_path_flush_by_iface(sdata);
1755         return 0;
1756 }
1757
1758 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1759                                   const u8 *dst, const u8 *next_hop)
1760 {
1761         struct ieee80211_sub_if_data *sdata;
1762         struct mesh_path *mpath;
1763         struct sta_info *sta;
1764
1765         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1766
1767         rcu_read_lock();
1768
1769         sta = sta_info_get(sdata, next_hop);
1770         if (!sta) {
1771                 rcu_read_unlock();
1772                 return -ENOENT;
1773         }
1774
1775         mpath = mesh_path_lookup(sdata, dst);
1776         if (!mpath) {
1777                 rcu_read_unlock();
1778                 return -ENOENT;
1779         }
1780
1781         mesh_path_fix_nexthop(mpath, sta);
1782
1783         rcu_read_unlock();
1784         return 0;
1785 }
1786
1787 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1788                             struct mpath_info *pinfo)
1789 {
1790         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1791
1792         if (next_hop_sta)
1793                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1794         else
1795                 eth_zero_addr(next_hop);
1796
1797         memset(pinfo, 0, sizeof(*pinfo));
1798
1799         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1800
1801         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1802                         MPATH_INFO_SN |
1803                         MPATH_INFO_METRIC |
1804                         MPATH_INFO_EXPTIME |
1805                         MPATH_INFO_DISCOVERY_TIMEOUT |
1806                         MPATH_INFO_DISCOVERY_RETRIES |
1807                         MPATH_INFO_FLAGS |
1808                         MPATH_INFO_HOP_COUNT |
1809                         MPATH_INFO_PATH_CHANGE;
1810
1811         pinfo->frame_qlen = mpath->frame_queue.qlen;
1812         pinfo->sn = mpath->sn;
1813         pinfo->metric = mpath->metric;
1814         if (time_before(jiffies, mpath->exp_time))
1815                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1816         pinfo->discovery_timeout =
1817                         jiffies_to_msecs(mpath->discovery_timeout);
1818         pinfo->discovery_retries = mpath->discovery_retries;
1819         if (mpath->flags & MESH_PATH_ACTIVE)
1820                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1821         if (mpath->flags & MESH_PATH_RESOLVING)
1822                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1823         if (mpath->flags & MESH_PATH_SN_VALID)
1824                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1825         if (mpath->flags & MESH_PATH_FIXED)
1826                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1827         if (mpath->flags & MESH_PATH_RESOLVED)
1828                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1829         pinfo->hop_count = mpath->hop_count;
1830         pinfo->path_change_count = mpath->path_change_count;
1831 }
1832
1833 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1834                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1835
1836 {
1837         struct ieee80211_sub_if_data *sdata;
1838         struct mesh_path *mpath;
1839
1840         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1841
1842         rcu_read_lock();
1843         mpath = mesh_path_lookup(sdata, dst);
1844         if (!mpath) {
1845                 rcu_read_unlock();
1846                 return -ENOENT;
1847         }
1848         memcpy(dst, mpath->dst, ETH_ALEN);
1849         mpath_set_pinfo(mpath, next_hop, pinfo);
1850         rcu_read_unlock();
1851         return 0;
1852 }
1853
1854 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1855                                 int idx, u8 *dst, u8 *next_hop,
1856                                 struct mpath_info *pinfo)
1857 {
1858         struct ieee80211_sub_if_data *sdata;
1859         struct mesh_path *mpath;
1860
1861         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1862
1863         rcu_read_lock();
1864         mpath = mesh_path_lookup_by_idx(sdata, idx);
1865         if (!mpath) {
1866                 rcu_read_unlock();
1867                 return -ENOENT;
1868         }
1869         memcpy(dst, mpath->dst, ETH_ALEN);
1870         mpath_set_pinfo(mpath, next_hop, pinfo);
1871         rcu_read_unlock();
1872         return 0;
1873 }
1874
1875 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1876                           struct mpath_info *pinfo)
1877 {
1878         memset(pinfo, 0, sizeof(*pinfo));
1879         memcpy(mpp, mpath->mpp, ETH_ALEN);
1880
1881         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1882 }
1883
1884 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1885                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1886
1887 {
1888         struct ieee80211_sub_if_data *sdata;
1889         struct mesh_path *mpath;
1890
1891         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1892
1893         rcu_read_lock();
1894         mpath = mpp_path_lookup(sdata, dst);
1895         if (!mpath) {
1896                 rcu_read_unlock();
1897                 return -ENOENT;
1898         }
1899         memcpy(dst, mpath->dst, ETH_ALEN);
1900         mpp_set_pinfo(mpath, mpp, pinfo);
1901         rcu_read_unlock();
1902         return 0;
1903 }
1904
1905 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1906                               int idx, u8 *dst, u8 *mpp,
1907                               struct mpath_info *pinfo)
1908 {
1909         struct ieee80211_sub_if_data *sdata;
1910         struct mesh_path *mpath;
1911
1912         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1913
1914         rcu_read_lock();
1915         mpath = mpp_path_lookup_by_idx(sdata, idx);
1916         if (!mpath) {
1917                 rcu_read_unlock();
1918                 return -ENOENT;
1919         }
1920         memcpy(dst, mpath->dst, ETH_ALEN);
1921         mpp_set_pinfo(mpath, mpp, pinfo);
1922         rcu_read_unlock();
1923         return 0;
1924 }
1925
1926 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1927                                 struct net_device *dev,
1928                                 struct mesh_config *conf)
1929 {
1930         struct ieee80211_sub_if_data *sdata;
1931         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1932
1933         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1934         return 0;
1935 }
1936
1937 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1938 {
1939         return (mask >> (parm-1)) & 0x1;
1940 }
1941
1942 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1943                 const struct mesh_setup *setup)
1944 {
1945         u8 *new_ie;
1946         const u8 *old_ie;
1947         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1948                                         struct ieee80211_sub_if_data, u.mesh);
1949
1950         /* allocate information elements */
1951         new_ie = NULL;
1952         old_ie = ifmsh->ie;
1953
1954         if (setup->ie_len) {
1955                 new_ie = kmemdup(setup->ie, setup->ie_len,
1956                                 GFP_KERNEL);
1957                 if (!new_ie)
1958                         return -ENOMEM;
1959         }
1960         ifmsh->ie_len = setup->ie_len;
1961         ifmsh->ie = new_ie;
1962         kfree(old_ie);
1963
1964         /* now copy the rest of the setup parameters */
1965         ifmsh->mesh_id_len = setup->mesh_id_len;
1966         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1967         ifmsh->mesh_sp_id = setup->sync_method;
1968         ifmsh->mesh_pp_id = setup->path_sel_proto;
1969         ifmsh->mesh_pm_id = setup->path_metric;
1970         ifmsh->user_mpm = setup->user_mpm;
1971         ifmsh->mesh_auth_id = setup->auth_id;
1972         ifmsh->security = IEEE80211_MESH_SEC_NONE;
1973         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
1974         if (setup->is_authenticated)
1975                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1976         if (setup->is_secure)
1977                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1978
1979         /* mcast rate setting in Mesh Node */
1980         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1981                                                 sizeof(setup->mcast_rate));
1982         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1983
1984         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1985         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1986
1987         return 0;
1988 }
1989
1990 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1991                                         struct net_device *dev, u32 mask,
1992                                         const struct mesh_config *nconf)
1993 {
1994         struct mesh_config *conf;
1995         struct ieee80211_sub_if_data *sdata;
1996         struct ieee80211_if_mesh *ifmsh;
1997
1998         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1999         ifmsh = &sdata->u.mesh;
2000
2001         /* Set the config options which we are interested in setting */
2002         conf = &(sdata->u.mesh.mshcfg);
2003         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2004                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2005         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2006                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2007         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2008                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2009         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2010                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2011         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2012                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2013         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2014                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
2015         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2016                 conf->element_ttl = nconf->element_ttl;
2017         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2018                 if (ifmsh->user_mpm)
2019                         return -EBUSY;
2020                 conf->auto_open_plinks = nconf->auto_open_plinks;
2021         }
2022         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2023                 conf->dot11MeshNbrOffsetMaxNeighbor =
2024                         nconf->dot11MeshNbrOffsetMaxNeighbor;
2025         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2026                 conf->dot11MeshHWMPmaxPREQretries =
2027                         nconf->dot11MeshHWMPmaxPREQretries;
2028         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2029                 conf->path_refresh_time = nconf->path_refresh_time;
2030         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2031                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
2032         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2033                 conf->dot11MeshHWMPactivePathTimeout =
2034                         nconf->dot11MeshHWMPactivePathTimeout;
2035         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2036                 conf->dot11MeshHWMPpreqMinInterval =
2037                         nconf->dot11MeshHWMPpreqMinInterval;
2038         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2039                 conf->dot11MeshHWMPperrMinInterval =
2040                         nconf->dot11MeshHWMPperrMinInterval;
2041         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2042                            mask))
2043                 conf->dot11MeshHWMPnetDiameterTraversalTime =
2044                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
2045         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2046                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2047                 ieee80211_mesh_root_setup(ifmsh);
2048         }
2049         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2050                 /* our current gate announcement implementation rides on root
2051                  * announcements, so require this ifmsh to also be a root node
2052                  * */
2053                 if (nconf->dot11MeshGateAnnouncementProtocol &&
2054                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2055                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2056                         ieee80211_mesh_root_setup(ifmsh);
2057                 }
2058                 conf->dot11MeshGateAnnouncementProtocol =
2059                         nconf->dot11MeshGateAnnouncementProtocol;
2060         }
2061         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2062                 conf->dot11MeshHWMPRannInterval =
2063                         nconf->dot11MeshHWMPRannInterval;
2064         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2065                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2066         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2067                 /* our RSSI threshold implementation is supported only for
2068                  * devices that report signal in dBm.
2069                  */
2070                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2071                         return -ENOTSUPP;
2072                 conf->rssi_threshold = nconf->rssi_threshold;
2073         }
2074         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2075                 conf->ht_opmode = nconf->ht_opmode;
2076                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2077                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2078         }
2079         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2080                 conf->dot11MeshHWMPactivePathToRootTimeout =
2081                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2082         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2083                 conf->dot11MeshHWMProotInterval =
2084                         nconf->dot11MeshHWMProotInterval;
2085         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2086                 conf->dot11MeshHWMPconfirmationInterval =
2087                         nconf->dot11MeshHWMPconfirmationInterval;
2088         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2089                 conf->power_mode = nconf->power_mode;
2090                 ieee80211_mps_local_status_update(sdata);
2091         }
2092         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2093                 conf->dot11MeshAwakeWindowDuration =
2094                         nconf->dot11MeshAwakeWindowDuration;
2095         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2096                 conf->plink_timeout = nconf->plink_timeout;
2097         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2098                 conf->dot11MeshConnectedToMeshGate =
2099                         nconf->dot11MeshConnectedToMeshGate;
2100         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2101         return 0;
2102 }
2103
2104 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2105                                const struct mesh_config *conf,
2106                                const struct mesh_setup *setup)
2107 {
2108         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2109         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2110         int err;
2111
2112         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2113         err = copy_mesh_setup(ifmsh, setup);
2114         if (err)
2115                 return err;
2116
2117         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2118
2119         /* can mesh use other SMPS modes? */
2120         sdata->smps_mode = IEEE80211_SMPS_OFF;
2121         sdata->needed_rx_chains = sdata->local->rx_chains;
2122
2123         mutex_lock(&sdata->local->mtx);
2124         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2125                                         IEEE80211_CHANCTX_SHARED);
2126         mutex_unlock(&sdata->local->mtx);
2127         if (err)
2128                 return err;
2129
2130         return ieee80211_start_mesh(sdata);
2131 }
2132
2133 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2134 {
2135         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2136
2137         ieee80211_stop_mesh(sdata);
2138         mutex_lock(&sdata->local->mtx);
2139         ieee80211_vif_release_channel(sdata);
2140         mutex_unlock(&sdata->local->mtx);
2141
2142         return 0;
2143 }
2144 #endif
2145
2146 static int ieee80211_change_bss(struct wiphy *wiphy,
2147                                 struct net_device *dev,
2148                                 struct bss_parameters *params)
2149 {
2150         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2151         struct ieee80211_supported_band *sband;
2152         u32 changed = 0;
2153
2154         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2155                 return -ENOENT;
2156
2157         sband = ieee80211_get_sband(sdata);
2158         if (!sband)
2159                 return -EINVAL;
2160
2161         if (params->use_cts_prot >= 0) {
2162                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2163                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2164         }
2165         if (params->use_short_preamble >= 0) {
2166                 sdata->vif.bss_conf.use_short_preamble =
2167                         params->use_short_preamble;
2168                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2169         }
2170
2171         if (!sdata->vif.bss_conf.use_short_slot &&
2172             sband->band == NL80211_BAND_5GHZ) {
2173                 sdata->vif.bss_conf.use_short_slot = true;
2174                 changed |= BSS_CHANGED_ERP_SLOT;
2175         }
2176
2177         if (params->use_short_slot_time >= 0) {
2178                 sdata->vif.bss_conf.use_short_slot =
2179                         params->use_short_slot_time;
2180                 changed |= BSS_CHANGED_ERP_SLOT;
2181         }
2182
2183         if (params->basic_rates) {
2184                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2185                                          wiphy->bands[sband->band],
2186                                          params->basic_rates,
2187                                          params->basic_rates_len,
2188                                          &sdata->vif.bss_conf.basic_rates);
2189                 changed |= BSS_CHANGED_BASIC_RATES;
2190                 ieee80211_check_rate_mask(sdata);
2191         }
2192
2193         if (params->ap_isolate >= 0) {
2194                 if (params->ap_isolate)
2195                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2196                 else
2197                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2198                 ieee80211_check_fast_rx_iface(sdata);
2199         }
2200
2201         if (params->ht_opmode >= 0) {
2202                 sdata->vif.bss_conf.ht_operation_mode =
2203                         (u16) params->ht_opmode;
2204                 changed |= BSS_CHANGED_HT;
2205         }
2206
2207         if (params->p2p_ctwindow >= 0) {
2208                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2209                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2210                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2211                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2212                 changed |= BSS_CHANGED_P2P_PS;
2213         }
2214
2215         if (params->p2p_opp_ps > 0) {
2216                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2217                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2218                 changed |= BSS_CHANGED_P2P_PS;
2219         } else if (params->p2p_opp_ps == 0) {
2220                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2221                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2222                 changed |= BSS_CHANGED_P2P_PS;
2223         }
2224
2225         ieee80211_bss_info_change_notify(sdata, changed);
2226
2227         return 0;
2228 }
2229
2230 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2231                                     struct net_device *dev,
2232                                     struct ieee80211_txq_params *params)
2233 {
2234         struct ieee80211_local *local = wiphy_priv(wiphy);
2235         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2236         struct ieee80211_tx_queue_params p;
2237
2238         if (!local->ops->conf_tx)
2239                 return -EOPNOTSUPP;
2240
2241         if (local->hw.queues < IEEE80211_NUM_ACS)
2242                 return -EOPNOTSUPP;
2243
2244         memset(&p, 0, sizeof(p));
2245         p.aifs = params->aifs;
2246         p.cw_max = params->cwmax;
2247         p.cw_min = params->cwmin;
2248         p.txop = params->txop;
2249
2250         /*
2251          * Setting tx queue params disables u-apsd because it's only
2252          * called in master mode.
2253          */
2254         p.uapsd = false;
2255
2256         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2257
2258         sdata->tx_conf[params->ac] = p;
2259         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2260                 wiphy_debug(local->hw.wiphy,
2261                             "failed to set TX queue parameters for AC %d\n",
2262                             params->ac);
2263                 return -EINVAL;
2264         }
2265
2266         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2267
2268         return 0;
2269 }
2270
2271 #ifdef CONFIG_PM
2272 static int ieee80211_suspend(struct wiphy *wiphy,
2273                              struct cfg80211_wowlan *wowlan)
2274 {
2275         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2276 }
2277
2278 static int ieee80211_resume(struct wiphy *wiphy)
2279 {
2280         return __ieee80211_resume(wiphy_priv(wiphy));
2281 }
2282 #else
2283 #define ieee80211_suspend NULL
2284 #define ieee80211_resume NULL
2285 #endif
2286
2287 static int ieee80211_scan(struct wiphy *wiphy,
2288                           struct cfg80211_scan_request *req)
2289 {
2290         struct ieee80211_sub_if_data *sdata;
2291
2292         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2293
2294         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2295         case NL80211_IFTYPE_STATION:
2296         case NL80211_IFTYPE_ADHOC:
2297         case NL80211_IFTYPE_MESH_POINT:
2298         case NL80211_IFTYPE_P2P_CLIENT:
2299         case NL80211_IFTYPE_P2P_DEVICE:
2300                 break;
2301         case NL80211_IFTYPE_P2P_GO:
2302                 if (sdata->local->ops->hw_scan)
2303                         break;
2304                 /*
2305                  * FIXME: implement NoA while scanning in software,
2306                  * for now fall through to allow scanning only when
2307                  * beaconing hasn't been configured yet
2308                  */
2309                 /* fall through */
2310         case NL80211_IFTYPE_AP:
2311                 /*
2312                  * If the scan has been forced (and the driver supports
2313                  * forcing), don't care about being beaconing already.
2314                  * This will create problems to the attached stations (e.g. all
2315                  * the  frames sent while scanning on other channel will be
2316                  * lost)
2317                  */
2318                 if (sdata->u.ap.beacon &&
2319                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2320                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2321                         return -EOPNOTSUPP;
2322                 break;
2323         case NL80211_IFTYPE_NAN:
2324         default:
2325                 return -EOPNOTSUPP;
2326         }
2327
2328         return ieee80211_request_scan(sdata, req);
2329 }
2330
2331 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2332 {
2333         ieee80211_scan_cancel(wiphy_priv(wiphy));
2334 }
2335
2336 static int
2337 ieee80211_sched_scan_start(struct wiphy *wiphy,
2338                            struct net_device *dev,
2339                            struct cfg80211_sched_scan_request *req)
2340 {
2341         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2342
2343         if (!sdata->local->ops->sched_scan_start)
2344                 return -EOPNOTSUPP;
2345
2346         return ieee80211_request_sched_scan_start(sdata, req);
2347 }
2348
2349 static int
2350 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2351                           u64 reqid)
2352 {
2353         struct ieee80211_local *local = wiphy_priv(wiphy);
2354
2355         if (!local->ops->sched_scan_stop)
2356                 return -EOPNOTSUPP;
2357
2358         return ieee80211_request_sched_scan_stop(local);
2359 }
2360
2361 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2362                           struct cfg80211_auth_request *req)
2363 {
2364         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2365 }
2366
2367 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2368                            struct cfg80211_assoc_request *req)
2369 {
2370         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2371 }
2372
2373 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2374                             struct cfg80211_deauth_request *req)
2375 {
2376         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2377 }
2378
2379 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2380                               struct cfg80211_disassoc_request *req)
2381 {
2382         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2383 }
2384
2385 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2386                                struct cfg80211_ibss_params *params)
2387 {
2388         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2389 }
2390
2391 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2392 {
2393         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2394 }
2395
2396 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2397                               struct ocb_setup *setup)
2398 {
2399         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2400 }
2401
2402 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2403 {
2404         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2405 }
2406
2407 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2408                                     int rate[NUM_NL80211_BANDS])
2409 {
2410         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2411
2412         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2413                sizeof(int) * NUM_NL80211_BANDS);
2414
2415         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2416
2417         return 0;
2418 }
2419
2420 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2421 {
2422         struct ieee80211_local *local = wiphy_priv(wiphy);
2423         int err;
2424
2425         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2426                 ieee80211_check_fast_xmit_all(local);
2427
2428                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2429
2430                 if (err) {
2431                         ieee80211_check_fast_xmit_all(local);
2432                         return err;
2433                 }
2434         }
2435
2436         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2437             (changed & WIPHY_PARAM_DYN_ACK)) {
2438                 s16 coverage_class;
2439
2440                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2441                                         wiphy->coverage_class : -1;
2442                 err = drv_set_coverage_class(local, coverage_class);
2443
2444                 if (err)
2445                         return err;
2446         }
2447
2448         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2449                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2450
2451                 if (err)
2452                         return err;
2453         }
2454
2455         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2456                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2457                         return -EINVAL;
2458                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2459         }
2460         if (changed & WIPHY_PARAM_RETRY_LONG) {
2461                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2462                         return -EINVAL;
2463                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2464         }
2465         if (changed &
2466             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2467                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2468
2469         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2470                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2471                        WIPHY_PARAM_TXQ_QUANTUM))
2472                 ieee80211_txq_set_params(local);
2473
2474         return 0;
2475 }
2476
2477 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2478                                   struct wireless_dev *wdev,
2479                                   enum nl80211_tx_power_setting type, int mbm)
2480 {
2481         struct ieee80211_local *local = wiphy_priv(wiphy);
2482         struct ieee80211_sub_if_data *sdata;
2483         enum nl80211_tx_power_setting txp_type = type;
2484         bool update_txp_type = false;
2485         bool has_monitor = false;
2486
2487         if (wdev) {
2488                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2489
2490                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2491                         sdata = rtnl_dereference(local->monitor_sdata);
2492                         if (!sdata)
2493                                 return -EOPNOTSUPP;
2494                 }
2495
2496                 switch (type) {
2497                 case NL80211_TX_POWER_AUTOMATIC:
2498                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2499                         txp_type = NL80211_TX_POWER_LIMITED;
2500                         break;
2501                 case NL80211_TX_POWER_LIMITED:
2502                 case NL80211_TX_POWER_FIXED:
2503                         if (mbm < 0 || (mbm % 100))
2504                                 return -EOPNOTSUPP;
2505                         sdata->user_power_level = MBM_TO_DBM(mbm);
2506                         break;
2507                 }
2508
2509                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2510                         update_txp_type = true;
2511                         sdata->vif.bss_conf.txpower_type = txp_type;
2512                 }
2513
2514                 ieee80211_recalc_txpower(sdata, update_txp_type);
2515
2516                 return 0;
2517         }
2518
2519         switch (type) {
2520         case NL80211_TX_POWER_AUTOMATIC:
2521                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2522                 txp_type = NL80211_TX_POWER_LIMITED;
2523                 break;
2524         case NL80211_TX_POWER_LIMITED:
2525         case NL80211_TX_POWER_FIXED:
2526                 if (mbm < 0 || (mbm % 100))
2527                         return -EOPNOTSUPP;
2528                 local->user_power_level = MBM_TO_DBM(mbm);
2529                 break;
2530         }
2531
2532         mutex_lock(&local->iflist_mtx);
2533         list_for_each_entry(sdata, &local->interfaces, list) {
2534                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2535                         has_monitor = true;
2536                         continue;
2537                 }
2538                 sdata->user_power_level = local->user_power_level;
2539                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2540                         update_txp_type = true;
2541                 sdata->vif.bss_conf.txpower_type = txp_type;
2542         }
2543         list_for_each_entry(sdata, &local->interfaces, list) {
2544                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2545                         continue;
2546                 ieee80211_recalc_txpower(sdata, update_txp_type);
2547         }
2548         mutex_unlock(&local->iflist_mtx);
2549
2550         if (has_monitor) {
2551                 sdata = rtnl_dereference(local->monitor_sdata);
2552                 if (sdata) {
2553                         sdata->user_power_level = local->user_power_level;
2554                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2555                                 update_txp_type = true;
2556                         sdata->vif.bss_conf.txpower_type = txp_type;
2557
2558                         ieee80211_recalc_txpower(sdata, update_txp_type);
2559                 }
2560         }
2561
2562         return 0;
2563 }
2564
2565 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2566                                   struct wireless_dev *wdev,
2567                                   int *dbm)
2568 {
2569         struct ieee80211_local *local = wiphy_priv(wiphy);
2570         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2571
2572         if (local->ops->get_txpower)
2573                 return drv_get_txpower(local, sdata, dbm);
2574
2575         if (!local->use_chanctx)
2576                 *dbm = local->hw.conf.power_level;
2577         else
2578                 *dbm = sdata->vif.bss_conf.txpower;
2579
2580         return 0;
2581 }
2582
2583 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2584                                   const u8 *addr)
2585 {
2586         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2587
2588         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2589
2590         return 0;
2591 }
2592
2593 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2594 {
2595         struct ieee80211_local *local = wiphy_priv(wiphy);
2596
2597         drv_rfkill_poll(local);
2598 }
2599
2600 #ifdef CONFIG_NL80211_TESTMODE
2601 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2602                                   struct wireless_dev *wdev,
2603                                   void *data, int len)
2604 {
2605         struct ieee80211_local *local = wiphy_priv(wiphy);
2606         struct ieee80211_vif *vif = NULL;
2607
2608         if (!local->ops->testmode_cmd)
2609                 return -EOPNOTSUPP;
2610
2611         if (wdev) {
2612                 struct ieee80211_sub_if_data *sdata;
2613
2614                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2615                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2616                         vif = &sdata->vif;
2617         }
2618
2619         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2620 }
2621
2622 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2623                                    struct sk_buff *skb,
2624                                    struct netlink_callback *cb,
2625                                    void *data, int len)
2626 {
2627         struct ieee80211_local *local = wiphy_priv(wiphy);
2628
2629         if (!local->ops->testmode_dump)
2630                 return -EOPNOTSUPP;
2631
2632         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2633 }
2634 #endif
2635
2636 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2637                                 enum ieee80211_smps_mode smps_mode)
2638 {
2639         struct sta_info *sta;
2640         enum ieee80211_smps_mode old_req;
2641
2642         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2643                 return -EINVAL;
2644
2645         if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2646                 return 0;
2647
2648         old_req = sdata->u.ap.req_smps;
2649         sdata->u.ap.req_smps = smps_mode;
2650
2651         /* AUTOMATIC doesn't mean much for AP - don't allow it */
2652         if (old_req == smps_mode ||
2653             smps_mode == IEEE80211_SMPS_AUTOMATIC)
2654                 return 0;
2655
2656         ht_dbg(sdata,
2657                "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2658                smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2659
2660         mutex_lock(&sdata->local->sta_mtx);
2661         list_for_each_entry(sta, &sdata->local->sta_list, list) {
2662                 /*
2663                  * Only stations associated to our AP and
2664                  * associated VLANs
2665                  */
2666                 if (sta->sdata->bss != &sdata->u.ap)
2667                         continue;
2668
2669                 /* This station doesn't support MIMO - skip it */
2670                 if (sta_info_tx_streams(sta) == 1)
2671                         continue;
2672
2673                 /*
2674                  * Don't wake up a STA just to send the action frame
2675                  * unless we are getting more restrictive.
2676                  */
2677                 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2678                     !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2679                                                    smps_mode)) {
2680                         ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2681                                sta->sta.addr);
2682                         continue;
2683                 }
2684
2685                 /*
2686                  * If the STA is not authorized, wait until it gets
2687                  * authorized and the action frame will be sent then.
2688                  */
2689                 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2690                         continue;
2691
2692                 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2693                 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2694                                            sdata->vif.bss_conf.bssid);
2695         }
2696         mutex_unlock(&sdata->local->sta_mtx);
2697
2698         sdata->smps_mode = smps_mode;
2699         ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2700
2701         return 0;
2702 }
2703
2704 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2705                                  enum ieee80211_smps_mode smps_mode)
2706 {
2707         const u8 *ap;
2708         enum ieee80211_smps_mode old_req;
2709         int err;
2710         struct sta_info *sta;
2711         bool tdls_peer_found = false;
2712
2713         lockdep_assert_held(&sdata->wdev.mtx);
2714
2715         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2716                 return -EINVAL;
2717
2718         old_req = sdata->u.mgd.req_smps;
2719         sdata->u.mgd.req_smps = smps_mode;
2720
2721         if (old_req == smps_mode &&
2722             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2723                 return 0;
2724
2725         /*
2726          * If not associated, or current association is not an HT
2727          * association, there's no need to do anything, just store
2728          * the new value until we associate.
2729          */
2730         if (!sdata->u.mgd.associated ||
2731             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2732                 return 0;
2733
2734         ap = sdata->u.mgd.associated->bssid;
2735
2736         rcu_read_lock();
2737         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2738                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2739                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2740                         continue;
2741
2742                 tdls_peer_found = true;
2743                 break;
2744         }
2745         rcu_read_unlock();
2746
2747         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2748                 if (tdls_peer_found || !sdata->u.mgd.powersave)
2749                         smps_mode = IEEE80211_SMPS_OFF;
2750                 else
2751                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2752         }
2753
2754         /* send SM PS frame to AP */
2755         err = ieee80211_send_smps_action(sdata, smps_mode,
2756                                          ap, ap);
2757         if (err)
2758                 sdata->u.mgd.req_smps = old_req;
2759         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2760                 ieee80211_teardown_tdls_peers(sdata);
2761
2762         return err;
2763 }
2764
2765 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2766                                     bool enabled, int timeout)
2767 {
2768         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2769         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2770
2771         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2772                 return -EOPNOTSUPP;
2773
2774         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2775                 return -EOPNOTSUPP;
2776
2777         if (enabled == sdata->u.mgd.powersave &&
2778             timeout == local->dynamic_ps_forced_timeout)
2779                 return 0;
2780
2781         sdata->u.mgd.powersave = enabled;
2782         local->dynamic_ps_forced_timeout = timeout;
2783
2784         /* no change, but if automatic follow powersave */
2785         sdata_lock(sdata);
2786         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2787         sdata_unlock(sdata);
2788
2789         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2790                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2791
2792         ieee80211_recalc_ps(local);
2793         ieee80211_recalc_ps_vif(sdata);
2794         ieee80211_check_fast_rx_iface(sdata);
2795
2796         return 0;
2797 }
2798
2799 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2800                                          struct net_device *dev,
2801                                          s32 rssi_thold, u32 rssi_hyst)
2802 {
2803         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2804         struct ieee80211_vif *vif = &sdata->vif;
2805         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2806
2807         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2808             rssi_hyst == bss_conf->cqm_rssi_hyst)
2809                 return 0;
2810
2811         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2812             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2813                 return -EOPNOTSUPP;
2814
2815         bss_conf->cqm_rssi_thold = rssi_thold;
2816         bss_conf->cqm_rssi_hyst = rssi_hyst;
2817         bss_conf->cqm_rssi_low = 0;
2818         bss_conf->cqm_rssi_high = 0;
2819         sdata->u.mgd.last_cqm_event_signal = 0;
2820
2821         /* tell the driver upon association, unless already associated */
2822         if (sdata->u.mgd.associated &&
2823             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2824                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2825
2826         return 0;
2827 }
2828
2829 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2830                                                struct net_device *dev,
2831                                                s32 rssi_low, s32 rssi_high)
2832 {
2833         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2834         struct ieee80211_vif *vif = &sdata->vif;
2835         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2836
2837         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2838                 return -EOPNOTSUPP;
2839
2840         bss_conf->cqm_rssi_low = rssi_low;
2841         bss_conf->cqm_rssi_high = rssi_high;
2842         bss_conf->cqm_rssi_thold = 0;
2843         bss_conf->cqm_rssi_hyst = 0;
2844         sdata->u.mgd.last_cqm_event_signal = 0;
2845
2846         /* tell the driver upon association, unless already associated */
2847         if (sdata->u.mgd.associated &&
2848             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2849                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2850
2851         return 0;
2852 }
2853
2854 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2855                                       struct net_device *dev,
2856                                       const u8 *addr,
2857                                       const struct cfg80211_bitrate_mask *mask)
2858 {
2859         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2860         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2861         int i, ret;
2862
2863         if (!ieee80211_sdata_running(sdata))
2864                 return -ENETDOWN;
2865
2866         /*
2867          * If active validate the setting and reject it if it doesn't leave
2868          * at least one basic rate usable, since we really have to be able
2869          * to send something, and if we're an AP we have to be able to do
2870          * so at a basic rate so that all clients can receive it.
2871          */
2872         if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2873             sdata->vif.bss_conf.chandef.chan) {
2874                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2875                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2876
2877                 if (!(mask->control[band].legacy & basic_rates))
2878                         return -EINVAL;
2879         }
2880
2881         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2882                 ret = drv_set_bitrate_mask(local, sdata, mask);
2883                 if (ret)
2884                         return ret;
2885         }
2886
2887         for (i = 0; i < NUM_NL80211_BANDS; i++) {
2888                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2889                 int j;
2890
2891                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2892                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2893                        sizeof(mask->control[i].ht_mcs));
2894                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2895                        mask->control[i].vht_mcs,
2896                        sizeof(mask->control[i].vht_mcs));
2897
2898                 sdata->rc_has_mcs_mask[i] = false;
2899                 sdata->rc_has_vht_mcs_mask[i] = false;
2900                 if (!sband)
2901                         continue;
2902
2903                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2904                         if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2905                                 sdata->rc_has_mcs_mask[i] = true;
2906                                 break;
2907                         }
2908                 }
2909
2910                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2911                         if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2912                                 sdata->rc_has_vht_mcs_mask[i] = true;
2913                                 break;
2914                         }
2915                 }
2916         }
2917
2918         return 0;
2919 }
2920
2921 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2922                                            struct net_device *dev,
2923                                            struct cfg80211_chan_def *chandef,
2924                                            u32 cac_time_ms)
2925 {
2926         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2927         struct ieee80211_local *local = sdata->local;
2928         int err;
2929
2930         mutex_lock(&local->mtx);
2931         if (!list_empty(&local->roc_list) || local->scanning) {
2932                 err = -EBUSY;
2933                 goto out_unlock;
2934         }
2935
2936         /* whatever, but channel contexts should not complain about that one */
2937         sdata->smps_mode = IEEE80211_SMPS_OFF;
2938         sdata->needed_rx_chains = local->rx_chains;
2939
2940         err = ieee80211_vif_use_channel(sdata, chandef,
2941                                         IEEE80211_CHANCTX_SHARED);
2942         if (err)
2943                 goto out_unlock;
2944
2945         ieee80211_queue_delayed_work(&sdata->local->hw,
2946                                      &sdata->dfs_cac_timer_work,
2947                                      msecs_to_jiffies(cac_time_ms));
2948
2949  out_unlock:
2950         mutex_unlock(&local->mtx);
2951         return err;
2952 }
2953
2954 static struct cfg80211_beacon_data *
2955 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2956 {
2957         struct cfg80211_beacon_data *new_beacon;
2958         u8 *pos;
2959         int len;
2960
2961         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2962               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2963               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
2964
2965         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2966         if (!new_beacon)
2967                 return NULL;
2968
2969         pos = (u8 *)(new_beacon + 1);
2970         if (beacon->head_len) {
2971                 new_beacon->head_len = beacon->head_len;
2972                 new_beacon->head = pos;
2973                 memcpy(pos, beacon->head, beacon->head_len);
2974                 pos += beacon->head_len;
2975         }
2976         if (beacon->tail_len) {
2977                 new_beacon->tail_len = beacon->tail_len;
2978                 new_beacon->tail = pos;
2979                 memcpy(pos, beacon->tail, beacon->tail_len);
2980                 pos += beacon->tail_len;
2981         }
2982         if (beacon->beacon_ies_len) {
2983                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2984                 new_beacon->beacon_ies = pos;
2985                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2986                 pos += beacon->beacon_ies_len;
2987         }
2988         if (beacon->proberesp_ies_len) {
2989                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2990                 new_beacon->proberesp_ies = pos;
2991                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2992                 pos += beacon->proberesp_ies_len;
2993         }
2994         if (beacon->assocresp_ies_len) {
2995                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2996                 new_beacon->assocresp_ies = pos;
2997                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2998                 pos += beacon->assocresp_ies_len;
2999         }
3000         if (beacon->probe_resp_len) {
3001                 new_beacon->probe_resp_len = beacon->probe_resp_len;
3002                 new_beacon->probe_resp = pos;
3003                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3004                 pos += beacon->probe_resp_len;
3005         }
3006
3007         /* might copy -1, meaning no changes requested */
3008         new_beacon->ftm_responder = beacon->ftm_responder;
3009         if (beacon->lci) {
3010                 new_beacon->lci_len = beacon->lci_len;
3011                 new_beacon->lci = pos;
3012                 memcpy(pos, beacon->lci, beacon->lci_len);
3013                 pos += beacon->lci_len;
3014         }
3015         if (beacon->civicloc) {
3016                 new_beacon->civicloc_len = beacon->civicloc_len;
3017                 new_beacon->civicloc = pos;
3018                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3019                 pos += beacon->civicloc_len;
3020         }
3021
3022         return new_beacon;
3023 }
3024
3025 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3026 {
3027         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3028
3029         ieee80211_queue_work(&sdata->local->hw,
3030                              &sdata->csa_finalize_work);
3031 }
3032 EXPORT_SYMBOL(ieee80211_csa_finish);
3033
3034 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3035                                           u32 *changed)
3036 {
3037         int err;
3038
3039         switch (sdata->vif.type) {
3040         case NL80211_IFTYPE_AP:
3041                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3042                                               NULL);
3043                 kfree(sdata->u.ap.next_beacon);
3044                 sdata->u.ap.next_beacon = NULL;
3045
3046                 if (err < 0)
3047                         return err;
3048                 *changed |= err;
3049                 break;
3050         case NL80211_IFTYPE_ADHOC:
3051                 err = ieee80211_ibss_finish_csa(sdata);
3052                 if (err < 0)
3053                         return err;
3054                 *changed |= err;
3055                 break;
3056 #ifdef CONFIG_MAC80211_MESH
3057         case NL80211_IFTYPE_MESH_POINT:
3058                 err = ieee80211_mesh_finish_csa(sdata);
3059                 if (err < 0)
3060                         return err;
3061                 *changed |= err;
3062                 break;
3063 #endif
3064         default:
3065                 WARN_ON(1);
3066                 return -EINVAL;
3067         }
3068
3069         return 0;
3070 }
3071
3072 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3073 {
3074         struct ieee80211_local *local = sdata->local;
3075         u32 changed = 0;
3076         int err;
3077
3078         sdata_assert_lock(sdata);
3079         lockdep_assert_held(&local->mtx);
3080         lockdep_assert_held(&local->chanctx_mtx);
3081
3082         /*
3083          * using reservation isn't immediate as it may be deferred until later
3084          * with multi-vif. once reservation is complete it will re-schedule the
3085          * work with no reserved_chanctx so verify chandef to check if it
3086          * completed successfully
3087          */
3088
3089         if (sdata->reserved_chanctx) {
3090                 /*
3091                  * with multi-vif csa driver may call ieee80211_csa_finish()
3092                  * many times while waiting for other interfaces to use their
3093                  * reservations
3094                  */
3095                 if (sdata->reserved_ready)
3096                         return 0;
3097
3098                 return ieee80211_vif_use_reserved_context(sdata);
3099         }
3100
3101         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3102                                         &sdata->csa_chandef))
3103                 return -EINVAL;
3104
3105         sdata->vif.csa_active = false;
3106
3107         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3108         if (err)
3109                 return err;
3110
3111         ieee80211_bss_info_change_notify(sdata, changed);
3112
3113         if (sdata->csa_block_tx) {
3114                 ieee80211_wake_vif_queues(local, sdata,
3115                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3116                 sdata->csa_block_tx = false;
3117         }
3118
3119         err = drv_post_channel_switch(sdata);
3120         if (err)
3121                 return err;
3122
3123         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3124
3125         return 0;
3126 }
3127
3128 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3129 {
3130         if (__ieee80211_csa_finalize(sdata)) {
3131                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3132                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3133                                     GFP_KERNEL);
3134         }
3135 }
3136
3137 void ieee80211_csa_finalize_work(struct work_struct *work)
3138 {
3139         struct ieee80211_sub_if_data *sdata =
3140                 container_of(work, struct ieee80211_sub_if_data,
3141                              csa_finalize_work);
3142         struct ieee80211_local *local = sdata->local;
3143
3144         sdata_lock(sdata);
3145         mutex_lock(&local->mtx);
3146         mutex_lock(&local->chanctx_mtx);
3147
3148         /* AP might have been stopped while waiting for the lock. */
3149         if (!sdata->vif.csa_active)
3150                 goto unlock;
3151
3152         if (!ieee80211_sdata_running(sdata))
3153                 goto unlock;
3154
3155         ieee80211_csa_finalize(sdata);
3156
3157 unlock:
3158         mutex_unlock(&local->chanctx_mtx);
3159         mutex_unlock(&local->mtx);
3160         sdata_unlock(sdata);
3161 }
3162
3163 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3164                                     struct cfg80211_csa_settings *params,
3165                                     u32 *changed)
3166 {
3167         struct ieee80211_csa_settings csa = {};
3168         int err;
3169
3170         switch (sdata->vif.type) {
3171         case NL80211_IFTYPE_AP:
3172                 sdata->u.ap.next_beacon =
3173                         cfg80211_beacon_dup(&params->beacon_after);
3174                 if (!sdata->u.ap.next_beacon)
3175                         return -ENOMEM;
3176
3177                 /*
3178                  * With a count of 0, we don't have to wait for any
3179                  * TBTT before switching, so complete the CSA
3180                  * immediately.  In theory, with a count == 1 we
3181                  * should delay the switch until just before the next
3182                  * TBTT, but that would complicate things so we switch
3183                  * immediately too.  If we would delay the switch
3184                  * until the next TBTT, we would have to set the probe
3185                  * response here.
3186                  *
3187                  * TODO: A channel switch with count <= 1 without
3188                  * sending a CSA action frame is kind of useless,
3189                  * because the clients won't know we're changing
3190                  * channels.  The action frame must be implemented
3191                  * either here or in the userspace.
3192                  */
3193                 if (params->count <= 1)
3194                         break;
3195
3196                 if ((params->n_counter_offsets_beacon >
3197                      IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3198                     (params->n_counter_offsets_presp >
3199                      IEEE80211_MAX_CSA_COUNTERS_NUM))
3200                         return -EINVAL;
3201
3202                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3203                 csa.counter_offsets_presp = params->counter_offsets_presp;
3204                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3205                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3206                 csa.count = params->count;
3207
3208                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3209                 if (err < 0) {
3210                         kfree(sdata->u.ap.next_beacon);
3211                         return err;
3212                 }
3213                 *changed |= err;
3214
3215                 break;
3216         case NL80211_IFTYPE_ADHOC:
3217                 if (!sdata->vif.bss_conf.ibss_joined)
3218                         return -EINVAL;
3219
3220                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3221                         return -EINVAL;
3222
3223                 switch (params->chandef.width) {
3224                 case NL80211_CHAN_WIDTH_40:
3225                         if (cfg80211_get_chandef_type(&params->chandef) !=
3226                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3227                                 return -EINVAL;
3228                 case NL80211_CHAN_WIDTH_5:
3229                 case NL80211_CHAN_WIDTH_10:
3230                 case NL80211_CHAN_WIDTH_20_NOHT:
3231                 case NL80211_CHAN_WIDTH_20:
3232                         break;
3233                 default:
3234                         return -EINVAL;
3235                 }
3236
3237                 /* changes into another band are not supported */
3238                 if (sdata->u.ibss.chandef.chan->band !=
3239                     params->chandef.chan->band)
3240                         return -EINVAL;
3241
3242                 /* see comments in the NL80211_IFTYPE_AP block */
3243                 if (params->count > 1) {
3244                         err = ieee80211_ibss_csa_beacon(sdata, params);
3245                         if (err < 0)
3246                                 return err;
3247                         *changed |= err;
3248                 }
3249
3250                 ieee80211_send_action_csa(sdata, params);
3251
3252                 break;
3253 #ifdef CONFIG_MAC80211_MESH
3254         case NL80211_IFTYPE_MESH_POINT: {
3255                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3256
3257                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3258                         return -EINVAL;
3259
3260                 /* changes into another band are not supported */
3261                 if (sdata->vif.bss_conf.chandef.chan->band !=
3262                     params->chandef.chan->band)
3263                         return -EINVAL;
3264
3265                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3266                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3267                         if (!ifmsh->pre_value)
3268                                 ifmsh->pre_value = 1;
3269                         else
3270                                 ifmsh->pre_value++;
3271                 }
3272
3273                 /* see comments in the NL80211_IFTYPE_AP block */
3274                 if (params->count > 1) {
3275                         err = ieee80211_mesh_csa_beacon(sdata, params);
3276                         if (err < 0) {
3277                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3278                                 return err;
3279                         }
3280                         *changed |= err;
3281                 }
3282
3283                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3284                         ieee80211_send_action_csa(sdata, params);
3285
3286                 break;
3287                 }
3288 #endif
3289         default:
3290                 return -EOPNOTSUPP;
3291         }
3292
3293         return 0;
3294 }
3295
3296 static int
3297 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3298                            struct cfg80211_csa_settings *params)
3299 {
3300         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3301         struct ieee80211_local *local = sdata->local;
3302         struct ieee80211_channel_switch ch_switch;
3303         struct ieee80211_chanctx_conf *conf;
3304         struct ieee80211_chanctx *chanctx;
3305         u32 changed = 0;
3306         int err;
3307
3308         sdata_assert_lock(sdata);
3309         lockdep_assert_held(&local->mtx);
3310
3311         if (!list_empty(&local->roc_list) || local->scanning)
3312                 return -EBUSY;
3313
3314         if (sdata->wdev.cac_started)
3315                 return -EBUSY;
3316
3317         if (cfg80211_chandef_identical(&params->chandef,
3318                                        &sdata->vif.bss_conf.chandef))
3319                 return -EINVAL;
3320
3321         /* don't allow another channel switch if one is already active. */
3322         if (sdata->vif.csa_active)
3323                 return -EBUSY;
3324
3325         mutex_lock(&local->chanctx_mtx);
3326         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3327                                          lockdep_is_held(&local->chanctx_mtx));
3328         if (!conf) {
3329                 err = -EBUSY;
3330                 goto out;
3331         }
3332
3333         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3334
3335         ch_switch.timestamp = 0;
3336         ch_switch.device_timestamp = 0;
3337         ch_switch.block_tx = params->block_tx;
3338         ch_switch.chandef = params->chandef;
3339         ch_switch.count = params->count;
3340
3341         err = drv_pre_channel_switch(sdata, &ch_switch);
3342         if (err)
3343                 goto out;
3344
3345         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3346                                             chanctx->mode,
3347                                             params->radar_required);
3348         if (err)
3349                 goto out;
3350
3351         /* if reservation is invalid then this will fail */
3352         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3353         if (err) {
3354                 ieee80211_vif_unreserve_chanctx(sdata);
3355                 goto out;
3356         }
3357
3358         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3359         if (err) {
3360                 ieee80211_vif_unreserve_chanctx(sdata);
3361                 goto out;
3362         }
3363
3364         sdata->csa_chandef = params->chandef;
3365         sdata->csa_block_tx = params->block_tx;
3366         sdata->vif.csa_active = true;
3367
3368         if (sdata->csa_block_tx)
3369                 ieee80211_stop_vif_queues(local, sdata,
3370                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3371
3372         cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3373                                           params->count);
3374
3375         if (changed) {
3376                 ieee80211_bss_info_change_notify(sdata, changed);
3377                 drv_channel_switch_beacon(sdata, &params->chandef);
3378         } else {
3379                 /* if the beacon didn't change, we can finalize immediately */
3380                 ieee80211_csa_finalize(sdata);
3381         }
3382
3383 out:
3384         mutex_unlock(&local->chanctx_mtx);
3385         return err;
3386 }
3387
3388 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3389                              struct cfg80211_csa_settings *params)
3390 {
3391         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3392         struct ieee80211_local *local = sdata->local;
3393         int err;
3394
3395         mutex_lock(&local->mtx);
3396         err = __ieee80211_channel_switch(wiphy, dev, params);
3397         mutex_unlock(&local->mtx);
3398
3399         return err;
3400 }
3401
3402 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3403 {
3404         lockdep_assert_held(&local->mtx);
3405
3406         local->roc_cookie_counter++;
3407
3408         /* wow, you wrapped 64 bits ... more likely a bug */
3409         if (WARN_ON(local->roc_cookie_counter == 0))
3410                 local->roc_cookie_counter++;
3411
3412         return local->roc_cookie_counter;
3413 }
3414
3415 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3416                              u64 *cookie, gfp_t gfp)
3417 {
3418         unsigned long spin_flags;
3419         struct sk_buff *ack_skb;
3420         int id;
3421
3422         ack_skb = skb_copy(skb, gfp);
3423         if (!ack_skb)
3424                 return -ENOMEM;
3425
3426         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3427         id = idr_alloc(&local->ack_status_frames, ack_skb,
3428                        1, 0x10000, GFP_ATOMIC);
3429         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3430
3431         if (id < 0) {
3432                 kfree_skb(ack_skb);
3433                 return -ENOMEM;
3434         }
3435
3436         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3437
3438         *cookie = ieee80211_mgmt_tx_cookie(local);
3439         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3440
3441         return 0;
3442 }
3443
3444 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3445                                           struct wireless_dev *wdev,
3446                                           u16 frame_type, bool reg)
3447 {
3448         struct ieee80211_local *local = wiphy_priv(wiphy);
3449         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3450
3451         switch (frame_type) {
3452         case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3453                 if (reg) {
3454                         local->probe_req_reg++;
3455                         sdata->vif.probe_req_reg++;
3456                 } else {
3457                         if (local->probe_req_reg)
3458                                 local->probe_req_reg--;
3459
3460                         if (sdata->vif.probe_req_reg)
3461                                 sdata->vif.probe_req_reg--;
3462                 }
3463
3464                 if (!local->open_count)
3465                         break;
3466
3467                 if (sdata->vif.probe_req_reg == 1)
3468                         drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3469                                                 FIF_PROBE_REQ);
3470                 else if (sdata->vif.probe_req_reg == 0)
3471                         drv_config_iface_filter(local, sdata, 0,
3472                                                 FIF_PROBE_REQ);
3473
3474                 ieee80211_configure_filter(local);
3475                 break;
3476         default:
3477                 break;
3478         }
3479 }
3480
3481 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3482 {
3483         struct ieee80211_local *local = wiphy_priv(wiphy);
3484
3485         if (local->started)
3486                 return -EOPNOTSUPP;
3487
3488         return drv_set_antenna(local, tx_ant, rx_ant);
3489 }
3490
3491 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3492 {
3493         struct ieee80211_local *local = wiphy_priv(wiphy);
3494
3495         return drv_get_antenna(local, tx_ant, rx_ant);
3496 }
3497
3498 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3499                                     struct net_device *dev,
3500                                     struct cfg80211_gtk_rekey_data *data)
3501 {
3502         struct ieee80211_local *local = wiphy_priv(wiphy);
3503         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3504
3505         if (!local->ops->set_rekey_data)
3506                 return -EOPNOTSUPP;
3507
3508         drv_set_rekey_data(local, sdata, data);
3509
3510         return 0;
3511 }
3512
3513 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3514                                   const u8 *peer, u64 *cookie)
3515 {
3516         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3517         struct ieee80211_local *local = sdata->local;
3518         struct ieee80211_qos_hdr *nullfunc;
3519         struct sk_buff *skb;
3520         int size = sizeof(*nullfunc);
3521         __le16 fc;
3522         bool qos;
3523         struct ieee80211_tx_info *info;
3524         struct sta_info *sta;
3525         struct ieee80211_chanctx_conf *chanctx_conf;
3526         enum nl80211_band band;
3527         int ret;
3528
3529         /* the lock is needed to assign the cookie later */
3530         mutex_lock(&local->mtx);
3531
3532         rcu_read_lock();
3533         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3534         if (WARN_ON(!chanctx_conf)) {
3535                 ret = -EINVAL;
3536                 goto unlock;
3537         }
3538         band = chanctx_conf->def.chan->band;
3539         sta = sta_info_get_bss(sdata, peer);
3540         if (sta) {
3541                 qos = sta->sta.wme;
3542         } else {
3543                 ret = -ENOLINK;
3544                 goto unlock;
3545         }
3546
3547         if (qos) {
3548                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3549                                  IEEE80211_STYPE_QOS_NULLFUNC |
3550                                  IEEE80211_FCTL_FROMDS);
3551         } else {
3552                 size -= 2;
3553                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3554                                  IEEE80211_STYPE_NULLFUNC |
3555                                  IEEE80211_FCTL_FROMDS);
3556         }
3557
3558         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3559         if (!skb) {
3560                 ret = -ENOMEM;
3561                 goto unlock;
3562         }
3563
3564         skb->dev = dev;
3565
3566         skb_reserve(skb, local->hw.extra_tx_headroom);
3567
3568         nullfunc = skb_put(skb, size);
3569         nullfunc->frame_control = fc;
3570         nullfunc->duration_id = 0;
3571         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3572         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3573         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3574         nullfunc->seq_ctrl = 0;
3575
3576         info = IEEE80211_SKB_CB(skb);
3577
3578         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3579                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3580         info->band = band;
3581
3582         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3583         skb->priority = 7;
3584         if (qos)
3585                 nullfunc->qos_ctrl = cpu_to_le16(7);
3586
3587         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3588         if (ret) {
3589                 kfree_skb(skb);
3590                 goto unlock;
3591         }
3592
3593         local_bh_disable();
3594         ieee80211_xmit(sdata, sta, skb, 0);
3595         local_bh_enable();
3596
3597         ret = 0;
3598 unlock:
3599         rcu_read_unlock();
3600         mutex_unlock(&local->mtx);
3601
3602         return ret;
3603 }
3604
3605 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3606                                      struct wireless_dev *wdev,
3607                                      struct cfg80211_chan_def *chandef)
3608 {
3609         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3610         struct ieee80211_local *local = wiphy_priv(wiphy);
3611         struct ieee80211_chanctx_conf *chanctx_conf;
3612         int ret = -ENODATA;
3613
3614         rcu_read_lock();
3615         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3616         if (chanctx_conf) {
3617                 *chandef = sdata->vif.bss_conf.chandef;
3618                 ret = 0;
3619         } else if (local->open_count > 0 &&
3620                    local->open_count == local->monitors &&
3621                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3622                 if (local->use_chanctx)
3623                         *chandef = local->monitor_chandef;
3624                 else
3625                         *chandef = local->_oper_chandef;
3626                 ret = 0;
3627         }
3628         rcu_read_unlock();
3629
3630         return ret;
3631 }
3632
3633 #ifdef CONFIG_PM
3634 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3635 {
3636         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3637 }
3638 #endif
3639
3640 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3641                                  struct net_device *dev,
3642                                  struct cfg80211_qos_map *qos_map)
3643 {
3644         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3645         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3646
3647         if (qos_map) {
3648                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3649                 if (!new_qos_map)
3650                         return -ENOMEM;
3651                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3652         } else {
3653                 /* A NULL qos_map was passed to disable QoS mapping */
3654                 new_qos_map = NULL;
3655         }
3656
3657         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3658         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3659         if (old_qos_map)
3660                 kfree_rcu(old_qos_map, rcu_head);
3661
3662         return 0;
3663 }
3664
3665 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3666                                       struct net_device *dev,
3667                                       struct cfg80211_chan_def *chandef)
3668 {
3669         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3670         int ret;
3671         u32 changed = 0;
3672
3673         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3674         if (ret == 0)
3675                 ieee80211_bss_info_change_notify(sdata, changed);
3676
3677         return ret;
3678 }
3679
3680 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3681                                u8 tsid, const u8 *peer, u8 up,
3682                                u16 admitted_time)
3683 {
3684         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3685         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3686         int ac = ieee802_1d_to_ac[up];
3687
3688         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3689                 return -EOPNOTSUPP;
3690
3691         if (!(sdata->wmm_acm & BIT(up)))
3692                 return -EINVAL;
3693
3694         if (ifmgd->tx_tspec[ac].admitted_time)
3695                 return -EBUSY;
3696
3697         if (admitted_time) {
3698                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3699                 ifmgd->tx_tspec[ac].tsid = tsid;
3700                 ifmgd->tx_tspec[ac].up = up;
3701         }
3702
3703         return 0;
3704 }
3705
3706 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3707                                u8 tsid, const u8 *peer)
3708 {
3709         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3710         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3711         struct ieee80211_local *local = wiphy_priv(wiphy);
3712         int ac;
3713
3714         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3715                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3716
3717                 /* skip unused entries */
3718                 if (!tx_tspec->admitted_time)
3719                         continue;
3720
3721                 if (tx_tspec->tsid != tsid)
3722                         continue;
3723
3724                 /* due to this new packets will be reassigned to non-ACM ACs */
3725                 tx_tspec->up = -1;
3726
3727                 /* Make sure that all packets have been sent to avoid to
3728                  * restore the QoS params on packets that are still on the
3729                  * queues.
3730                  */
3731                 synchronize_net();
3732                 ieee80211_flush_queues(local, sdata, false);
3733
3734                 /* restore the normal QoS parameters
3735                  * (unconditionally to avoid races)
3736                  */
3737                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3738                 tx_tspec->downgraded = false;
3739                 ieee80211_sta_handle_tspec_ac_params(sdata);
3740
3741                 /* finally clear all the data */
3742                 memset(tx_tspec, 0, sizeof(*tx_tspec));
3743
3744                 return 0;
3745         }
3746
3747         return -ENOENT;
3748 }
3749
3750 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3751                                    u8 inst_id,
3752                                    enum nl80211_nan_func_term_reason reason,
3753                                    gfp_t gfp)
3754 {
3755         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3756         struct cfg80211_nan_func *func;
3757         u64 cookie;
3758
3759         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3760                 return;
3761
3762         spin_lock_bh(&sdata->u.nan.func_lock);
3763
3764         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3765         if (WARN_ON(!func)) {
3766                 spin_unlock_bh(&sdata->u.nan.func_lock);
3767                 return;
3768         }
3769
3770         cookie = func->cookie;
3771         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3772
3773         spin_unlock_bh(&sdata->u.nan.func_lock);
3774
3775         cfg80211_free_nan_func(func);
3776
3777         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3778                                      reason, cookie, gfp);
3779 }
3780 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3781
3782 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3783                               struct cfg80211_nan_match_params *match,
3784                               gfp_t gfp)
3785 {
3786         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3787         struct cfg80211_nan_func *func;
3788
3789         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3790                 return;
3791
3792         spin_lock_bh(&sdata->u.nan.func_lock);
3793
3794         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3795         if (WARN_ON(!func)) {
3796                 spin_unlock_bh(&sdata->u.nan.func_lock);
3797                 return;
3798         }
3799         match->cookie = func->cookie;
3800
3801         spin_unlock_bh(&sdata->u.nan.func_lock);
3802
3803         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3804 }
3805 EXPORT_SYMBOL(ieee80211_nan_func_match);
3806
3807 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3808                                               struct net_device *dev,
3809                                               const bool enabled)
3810 {
3811         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3812
3813         sdata->u.ap.multicast_to_unicast = enabled;
3814
3815         return 0;
3816 }
3817
3818 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3819                               struct txq_info *txqi)
3820 {
3821         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3822                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3823                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3824         }
3825
3826         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3827                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3828                 txqstats->backlog_packets = txqi->tin.backlog_packets;
3829         }
3830
3831         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3832                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3833                 txqstats->flows = txqi->tin.flows;
3834         }
3835
3836         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3837                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3838                 txqstats->drops = txqi->cstats.drop_count;
3839         }
3840
3841         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3842                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3843                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3844         }
3845
3846         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3847                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3848                 txqstats->overlimit = txqi->tin.overlimit;
3849         }
3850
3851         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3852                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3853                 txqstats->collisions = txqi->tin.collisions;
3854         }
3855
3856         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3857                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3858                 txqstats->tx_bytes = txqi->tin.tx_bytes;
3859         }
3860
3861         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3862                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3863                 txqstats->tx_packets = txqi->tin.tx_packets;
3864         }
3865 }
3866
3867 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3868                                    struct wireless_dev *wdev,
3869                                    struct cfg80211_txq_stats *txqstats)
3870 {
3871         struct ieee80211_local *local = wiphy_priv(wiphy);
3872         struct ieee80211_sub_if_data *sdata;
3873         int ret = 0;
3874
3875         if (!local->ops->wake_tx_queue)
3876                 return 1;
3877
3878         spin_lock_bh(&local->fq.lock);
3879         rcu_read_lock();
3880
3881         if (wdev) {
3882                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3883                 if (!sdata->vif.txq) {
3884                         ret = 1;
3885                         goto out;
3886                 }
3887                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3888         } else {
3889                 /* phy stats */
3890                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3891                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3892                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3893                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3894                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
3895                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3896                 txqstats->backlog_packets = local->fq.backlog;
3897                 txqstats->backlog_bytes = local->fq.memory_usage;
3898                 txqstats->overlimit = local->fq.overlimit;
3899                 txqstats->overmemory = local->fq.overmemory;
3900                 txqstats->collisions = local->fq.collisions;
3901                 txqstats->max_flows = local->fq.flows_cnt;
3902         }
3903
3904 out:
3905         rcu_read_unlock();
3906         spin_unlock_bh(&local->fq.lock);
3907
3908         return ret;
3909 }
3910
3911 static int
3912 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
3913                                   struct net_device *dev,
3914                                   struct cfg80211_ftm_responder_stats *ftm_stats)
3915 {
3916         struct ieee80211_local *local = wiphy_priv(wiphy);
3917         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3918
3919         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
3920 }
3921
3922 static int
3923 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3924                      struct cfg80211_pmsr_request *request)
3925 {
3926         struct ieee80211_local *local = wiphy_priv(wiphy);
3927         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3928
3929         return drv_start_pmsr(local, sdata, request);
3930 }
3931
3932 static void
3933 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3934                      struct cfg80211_pmsr_request *request)
3935 {
3936         struct ieee80211_local *local = wiphy_priv(wiphy);
3937         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3938
3939         return drv_abort_pmsr(local, sdata, request);
3940 }
3941
3942 const struct cfg80211_ops mac80211_config_ops = {
3943         .add_virtual_intf = ieee80211_add_iface,
3944         .del_virtual_intf = ieee80211_del_iface,
3945         .change_virtual_intf = ieee80211_change_iface,
3946         .start_p2p_device = ieee80211_start_p2p_device,
3947         .stop_p2p_device = ieee80211_stop_p2p_device,
3948         .add_key = ieee80211_add_key,
3949         .del_key = ieee80211_del_key,
3950         .get_key = ieee80211_get_key,
3951         .set_default_key = ieee80211_config_default_key,
3952         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3953         .start_ap = ieee80211_start_ap,
3954         .change_beacon = ieee80211_change_beacon,
3955         .stop_ap = ieee80211_stop_ap,
3956         .add_station = ieee80211_add_station,
3957         .del_station = ieee80211_del_station,
3958         .change_station = ieee80211_change_station,
3959         .get_station = ieee80211_get_station,
3960         .dump_station = ieee80211_dump_station,
3961         .dump_survey = ieee80211_dump_survey,
3962 #ifdef CONFIG_MAC80211_MESH
3963         .add_mpath = ieee80211_add_mpath,
3964         .del_mpath = ieee80211_del_mpath,
3965         .change_mpath = ieee80211_change_mpath,
3966         .get_mpath = ieee80211_get_mpath,
3967         .dump_mpath = ieee80211_dump_mpath,
3968         .get_mpp = ieee80211_get_mpp,
3969         .dump_mpp = ieee80211_dump_mpp,
3970         .update_mesh_config = ieee80211_update_mesh_config,
3971         .get_mesh_config = ieee80211_get_mesh_config,
3972         .join_mesh = ieee80211_join_mesh,
3973         .leave_mesh = ieee80211_leave_mesh,
3974 #endif
3975         .join_ocb = ieee80211_join_ocb,
3976         .leave_ocb = ieee80211_leave_ocb,
3977         .change_bss = ieee80211_change_bss,
3978         .set_txq_params = ieee80211_set_txq_params,
3979         .set_monitor_channel = ieee80211_set_monitor_channel,
3980         .suspend = ieee80211_suspend,
3981         .resume = ieee80211_resume,
3982         .scan = ieee80211_scan,
3983         .abort_scan = ieee80211_abort_scan,
3984         .sched_scan_start = ieee80211_sched_scan_start,
3985         .sched_scan_stop = ieee80211_sched_scan_stop,
3986         .auth = ieee80211_auth,
3987         .assoc = ieee80211_assoc,
3988         .deauth = ieee80211_deauth,
3989         .disassoc = ieee80211_disassoc,
3990         .join_ibss = ieee80211_join_ibss,
3991         .leave_ibss = ieee80211_leave_ibss,
3992         .set_mcast_rate = ieee80211_set_mcast_rate,
3993         .set_wiphy_params = ieee80211_set_wiphy_params,
3994         .set_tx_power = ieee80211_set_tx_power,
3995         .get_tx_power = ieee80211_get_tx_power,
3996         .set_wds_peer = ieee80211_set_wds_peer,
3997         .rfkill_poll = ieee80211_rfkill_poll,
3998         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3999         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4000         .set_power_mgmt = ieee80211_set_power_mgmt,
4001         .set_bitrate_mask = ieee80211_set_bitrate_mask,
4002         .remain_on_channel = ieee80211_remain_on_channel,
4003         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4004         .mgmt_tx = ieee80211_mgmt_tx,
4005         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4006         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4007         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4008         .mgmt_frame_register = ieee80211_mgmt_frame_register,
4009         .set_antenna = ieee80211_set_antenna,
4010         .get_antenna = ieee80211_get_antenna,
4011         .set_rekey_data = ieee80211_set_rekey_data,
4012         .tdls_oper = ieee80211_tdls_oper,
4013         .tdls_mgmt = ieee80211_tdls_mgmt,
4014         .tdls_channel_switch = ieee80211_tdls_channel_switch,
4015         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4016         .probe_client = ieee80211_probe_client,
4017         .set_noack_map = ieee80211_set_noack_map,
4018 #ifdef CONFIG_PM
4019         .set_wakeup = ieee80211_set_wakeup,
4020 #endif
4021         .get_channel = ieee80211_cfg_get_channel,
4022         .start_radar_detection = ieee80211_start_radar_detection,
4023         .channel_switch = ieee80211_channel_switch,
4024         .set_qos_map = ieee80211_set_qos_map,
4025         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4026         .add_tx_ts = ieee80211_add_tx_ts,
4027         .del_tx_ts = ieee80211_del_tx_ts,
4028         .start_nan = ieee80211_start_nan,
4029         .stop_nan = ieee80211_stop_nan,
4030         .nan_change_conf = ieee80211_nan_change_conf,
4031         .add_nan_func = ieee80211_add_nan_func,
4032         .del_nan_func = ieee80211_del_nan_func,
4033         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4034         .tx_control_port = ieee80211_tx_control_port,
4035         .get_txq_stats = ieee80211_get_txq_stats,
4036         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4037         .start_pmsr = ieee80211_start_pmsr,
4038         .abort_pmsr = ieee80211_abort_pmsr,
4039         .probe_mesh_link = ieee80211_probe_mesh_link,
4040 };