net/mac80211/cfg.c

   1 /*
   2  * mac80211 configuration hooks for cfg80211
   3  *
   4  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   5  * Copyright 2013-2015  Intel Mobile Communications GmbH
   6  * Copyright (C) 2015-2017 Intel Deutschland GmbH
   7  * Copyright (C) 2018 Intel Corporation
   8  *
   9  * This file is GPLv2 as found in COPYING.
  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/if_ether.h>
  19 #include <net/cfg80211.h>
  20 #include "ieee80211_i.h"
  21 #include "driver-ops.h"
  22 #include "rate.h"
  23 #include "mesh.h"
  24 #include "wme.h"
  25
  26 static void ieee80211_set_mu_mimo_follow(struct ieee80211_sub_if_data *sdata,
  27                                          struct vif_params *params)
  28 {
  29         bool mu_mimo_groups = false;
  30         bool mu_mimo_follow = false;
  31
  32         if (params->vht_mumimo_groups) {
  33                 u64 membership;
  34
  35                 BUILD_BUG_ON(sizeof(membership) != WLAN_MEMBERSHIP_LEN);
  36
  37                 memcpy(sdata->vif.bss_conf.mu_group.membership,
  38                        params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
  39                 memcpy(sdata->vif.bss_conf.mu_group.position,
  40                        params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
  41                        WLAN_USER_POSITION_LEN);
  42                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MU_GROUPS);
  43                 /* don't care about endianness - just check for 0 */
  44                 memcpy(&membership, params->vht_mumimo_groups,
  45                        WLAN_MEMBERSHIP_LEN);
  46                 mu_mimo_groups = membership != 0;
  47         }
  48
  49         if (params->vht_mumimo_follow_addr) {
  50                 mu_mimo_follow =
  51                         is_valid_ether_addr(params->vht_mumimo_follow_addr);
  52                 ether_addr_copy(sdata->u.mntr.mu_follow_addr,
  53                                 params->vht_mumimo_follow_addr);
  54         }
  55
  56         sdata->vif.mu_mimo_owner = mu_mimo_groups || mu_mimo_follow;
  57 }
  58
  59 static int ieee80211_set_mon_options(struct ieee80211_sub_if_data *sdata,
  60                                      struct vif_params *params)
  61 {
  62         struct ieee80211_local *local = sdata->local;
  63         struct ieee80211_sub_if_data *monitor_sdata;
  64
  65         /* check flags first */
  66         if (params->flags && ieee80211_sdata_running(sdata)) {
  67                 u32 mask = MONITOR_FLAG_COOK_FRAMES | MONITOR_FLAG_ACTIVE;
  68
  69                 /*
  70                  * Prohibit MONITOR_FLAG_COOK_FRAMES and
  71                  * MONITOR_FLAG_ACTIVE to be changed while the
  72                  * interface is up.
  73                  * Else we would need to add a lot of cruft
  74                  * to update everything:
  75                  *      cooked_mntrs, monitor and all fif_* counters
  76                  *      reconfigure hardware
  77                  */
  78                 if ((params->flags & mask) != (sdata->u.mntr.flags & mask))
  79                         return -EBUSY;
  80         }
  81
  82         /* also validate MU-MIMO change */
  83         monitor_sdata = rtnl_dereference(local->monitor_sdata);
  84
  85         if (!monitor_sdata &&
  86             (params->vht_mumimo_groups || params->vht_mumimo_follow_addr))
  87                 return -EOPNOTSUPP;
  88
  89         /* apply all changes now - no failures allowed */
  90
  91         if (monitor_sdata)
  92                 ieee80211_set_mu_mimo_follow(monitor_sdata, params);
  93
  94         if (params->flags) {
  95                 if (ieee80211_sdata_running(sdata)) {
  96                         ieee80211_adjust_monitor_flags(sdata, -1);
  97                         sdata->u.mntr.flags = params->flags;
  98                         ieee80211_adjust_monitor_flags(sdata, 1);
  99
 100                         ieee80211_configure_filter(local);
 101                 } else {
 102                         /*
 103                          * Because the interface is down, ieee80211_do_stop
 104                          * and ieee80211_do_open take care of "everything"
 105                          * mentioned in the comment above.
 106                          */
 107                         sdata->u.mntr.flags = params->flags;
 108                 }
 109         }
 110
 111         return 0;
 112 }
 113
 114 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
 115                                                 const char *name,
 116                                                 unsigned char name_assign_type,
 117                                                 enum nl80211_iftype type,
 118                                                 struct vif_params *params)
 119 {
 120         struct ieee80211_local *local = wiphy_priv(wiphy);
 121         struct wireless_dev *wdev;
 122         struct ieee80211_sub_if_data *sdata;
 123         int err;
 124
 125         err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
 126         if (err)
 127                 return ERR_PTR(err);
 128
 129         sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 130
 131         if (type == NL80211_IFTYPE_MONITOR) {
 132                 err = ieee80211_set_mon_options(sdata, params);
 133                 if (err) {
 134                         ieee80211_if_remove(sdata);
 135                         return NULL;
 136                 }
 137         }
 138
 139         return wdev;
 140 }
 141
 142 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
 143 {
 144         ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
 145
 146         return 0;
 147 }
 148
 149 static int ieee80211_change_iface(struct wiphy *wiphy,
 150                                   struct net_device *dev,
 151                                   enum nl80211_iftype type,
 152                                   struct vif_params *params)
 153 {
 154         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 155         int ret;
 156
 157         ret = ieee80211_if_change_type(sdata, type);
 158         if (ret)
 159                 return ret;
 160
 161         if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
 162                 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
 163                 ieee80211_check_fast_rx_iface(sdata);
 164         } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
 165                 sdata->u.mgd.use_4addr = params->use_4addr;
 166         }
 167
 168         if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
 169                 ret = ieee80211_set_mon_options(sdata, params);
 170                 if (ret)
 171                         return ret;
 172         }
 173
 174         return 0;
 175 }
 176
 177 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 178                                       struct wireless_dev *wdev)
 179 {
 180         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 181         int ret;
 182
 183         mutex_lock(&sdata->local->chanctx_mtx);
 184         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 185         mutex_unlock(&sdata->local->chanctx_mtx);
 186         if (ret < 0)
 187                 return ret;
 188
 189         return ieee80211_do_open(wdev, true);
 190 }
 191
 192 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 193                                       struct wireless_dev *wdev)
 194 {
 195         ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 196 }
 197
 198 static int ieee80211_start_nan(struct wiphy *wiphy,
 199                                struct wireless_dev *wdev,
 200                                struct cfg80211_nan_conf *conf)
 201 {
 202         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 203         int ret;
 204
 205         mutex_lock(&sdata->local->chanctx_mtx);
 206         ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 207         mutex_unlock(&sdata->local->chanctx_mtx);
 208         if (ret < 0)
 209                 return ret;
 210
 211         ret = ieee80211_do_open(wdev, true);
 212         if (ret)
 213                 return ret;
 214
 215         ret = drv_start_nan(sdata->local, sdata, conf);
 216         if (ret)
 217                 ieee80211_sdata_stop(sdata);
 218
 219         sdata->u.nan.conf = *conf;
 220
 221         return ret;
 222 }
 223
 224 static void ieee80211_stop_nan(struct wiphy *wiphy,
 225                                struct wireless_dev *wdev)
 226 {
 227         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 228
 229         drv_stop_nan(sdata->local, sdata);
 230         ieee80211_sdata_stop(sdata);
 231 }
 232
 233 static int ieee80211_nan_change_conf(struct wiphy *wiphy,
 234                                      struct wireless_dev *wdev,
 235                                      struct cfg80211_nan_conf *conf,
 236                                      u32 changes)
 237 {
 238         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 239         struct cfg80211_nan_conf new_conf;
 240         int ret = 0;
 241
 242         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 243                 return -EOPNOTSUPP;
 244
 245         if (!ieee80211_sdata_running(sdata))
 246                 return -ENETDOWN;
 247
 248         new_conf = sdata->u.nan.conf;
 249
 250         if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
 251                 new_conf.master_pref = conf->master_pref;
 252
 253         if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
 254                 new_conf.bands = conf->bands;
 255
 256         ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
 257         if (!ret)
 258                 sdata->u.nan.conf = new_conf;
 259
 260         return ret;
 261 }
 262
 263 static int ieee80211_add_nan_func(struct wiphy *wiphy,
 264                                   struct wireless_dev *wdev,
 265                                   struct cfg80211_nan_func *nan_func)
 266 {
 267         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 268         int ret;
 269
 270         if (sdata->vif.type != NL80211_IFTYPE_NAN)
 271                 return -EOPNOTSUPP;
 272
 273         if (!ieee80211_sdata_running(sdata))
 274                 return -ENETDOWN;
 275
 276         spin_lock_bh(&sdata->u.nan.func_lock);
 277
 278         ret = idr_alloc(&sdata->u.nan.function_inst_ids,
 279                         nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
 280                         GFP_ATOMIC);
 281         spin_unlock_bh(&sdata->u.nan.func_lock);
 282
 283         if (ret < 0)
 284                 return ret;
 285
 286         nan_func->instance_id = ret;
 287
 288         WARN_ON(nan_func->instance_id == 0);
 289
 290         ret = drv_add_nan_func(sdata->local, sdata, nan_func);
 291         if (ret) {
 292                 spin_lock_bh(&sdata->u.nan.func_lock);
 293                 idr_remove(&sdata->u.nan.function_inst_ids,
 294                            nan_func->instance_id);
 295                 spin_unlock_bh(&sdata->u.nan.func_lock);
 296         }
 297
 298         return ret;
 299 }
 300
 301 static struct cfg80211_nan_func *
 302 ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
 303                                   u64 cookie)
 304 {
 305         struct cfg80211_nan_func *func;
 306         int id;
 307
 308         lockdep_assert_held(&sdata->u.nan.func_lock);
 309
 310         idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
 311                 if (func->cookie == cookie)
 312                         return func;
 313         }
 314
 315         return NULL;
 316 }
 317
 318 static void ieee80211_del_nan_func(struct wiphy *wiphy,
 319                                   struct wireless_dev *wdev, u64 cookie)
 320 {
 321         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 322         struct cfg80211_nan_func *func;
 323         u8 instance_id = 0;
 324
 325         if (sdata->vif.type != NL80211_IFTYPE_NAN ||
 326             !ieee80211_sdata_running(sdata))
 327                 return;
 328
 329         spin_lock_bh(&sdata->u.nan.func_lock);
 330
 331         func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
 332         if (func)
 333                 instance_id = func->instance_id;
 334
 335         spin_unlock_bh(&sdata->u.nan.func_lock);
 336
 337         if (instance_id)
 338                 drv_del_nan_func(sdata->local, sdata, instance_id);
 339 }
 340
 341 static int ieee80211_set_noack_map(struct wiphy *wiphy,
 342                                   struct net_device *dev,
 343                                   u16 noack_map)
 344 {
 345         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 346
 347         sdata->noack_map = noack_map;
 348
 349         ieee80211_check_fast_xmit_iface(sdata);
 350
 351         return 0;
 352 }
 353
 354 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 355                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 356                              struct key_params *params)
 357 {
 358         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 359         struct ieee80211_local *local = sdata->local;
 360         struct sta_info *sta = NULL;
 361         const struct ieee80211_cipher_scheme *cs = NULL;
 362         struct ieee80211_key *key;
 363         int err;
 364
 365         if (!ieee80211_sdata_running(sdata))
 366                 return -ENETDOWN;
 367
 368         /* reject WEP and TKIP keys if WEP failed to initialize */
 369         switch (params->cipher) {
 370         case WLAN_CIPHER_SUITE_WEP40:
 371         case WLAN_CIPHER_SUITE_TKIP:
 372         case WLAN_CIPHER_SUITE_WEP104:
 373                 if (IS_ERR(local->wep_tx_tfm))
 374                         return -EINVAL;
 375                 break;
 376         case WLAN_CIPHER_SUITE_CCMP:
 377         case WLAN_CIPHER_SUITE_CCMP_256:
 378         case WLAN_CIPHER_SUITE_AES_CMAC:
 379         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 380         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 381         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 382         case WLAN_CIPHER_SUITE_GCMP:
 383         case WLAN_CIPHER_SUITE_GCMP_256:
 384                 break;
 385         default:
 386                 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
 387                 break;
 388         }
 389
 390         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 391                                   params->key, params->seq_len, params->seq,
 392                                   cs);
 393         if (IS_ERR(key))
 394                 return PTR_ERR(key);
 395
 396         if (pairwise)
 397                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 398
 399         mutex_lock(&local->sta_mtx);
 400
 401         if (mac_addr) {
 402                 sta = sta_info_get_bss(sdata, mac_addr);
 403                 /*
 404                  * The ASSOC test makes sure the driver is ready to
 405                  * receive the key. When wpa_supplicant has roamed
 406                  * using FT, it attempts to set the key before
 407                  * association has completed, this rejects that attempt
 408                  * so it will set the key again after association.
 409                  *
 410                  * TODO: accept the key if we have a station entry and
 411                  *       add it to the device after the station.
 412                  */
 413                 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 414                         ieee80211_key_free_unused(key);
 415                         err = -ENOENT;
 416                         goto out_unlock;
 417                 }
 418         }
 419
 420         switch (sdata->vif.type) {
 421         case NL80211_IFTYPE_STATION:
 422                 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 423                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 424                 break;
 425         case NL80211_IFTYPE_AP:
 426         case NL80211_IFTYPE_AP_VLAN:
 427                 /* Keys without a station are used for TX only */
 428                 if (sta && test_sta_flag(sta, WLAN_STA_MFP))
 429                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 430                 break;
 431         case NL80211_IFTYPE_ADHOC:
 432                 /* no MFP (yet) */
 433                 break;
 434         case NL80211_IFTYPE_MESH_POINT:
 435 #ifdef CONFIG_MAC80211_MESH
 436                 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 437                         key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 438                 break;
 439 #endif
 440         case NL80211_IFTYPE_WDS:
 441         case NL80211_IFTYPE_MONITOR:
 442         case NL80211_IFTYPE_P2P_DEVICE:
 443         case NL80211_IFTYPE_NAN:
 444         case NL80211_IFTYPE_UNSPECIFIED:
 445         case NUM_NL80211_IFTYPES:
 446         case NL80211_IFTYPE_P2P_CLIENT:
 447         case NL80211_IFTYPE_P2P_GO:
 448         case NL80211_IFTYPE_OCB:
 449                 /* shouldn't happen */
 450                 WARN_ON_ONCE(1);
 451                 break;
 452         }
 453
 454         if (sta)
 455                 sta->cipher_scheme = cs;
 456
 457         err = ieee80211_key_link(key, sdata, sta);
 458
 459  out_unlock:
 460         mutex_unlock(&local->sta_mtx);
 461
 462         return err;
 463 }
 464
 465 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 466                              u8 key_idx, bool pairwise, const u8 *mac_addr)
 467 {
 468         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 469         struct ieee80211_local *local = sdata->local;
 470         struct sta_info *sta;
 471         struct ieee80211_key *key = NULL;
 472         int ret;
 473
 474         mutex_lock(&local->sta_mtx);
 475         mutex_lock(&local->key_mtx);
 476
 477         if (mac_addr) {
 478                 ret = -ENOENT;
 479
 480                 sta = sta_info_get_bss(sdata, mac_addr);
 481                 if (!sta)
 482                         goto out_unlock;
 483
 484                 if (pairwise)
 485                         key = key_mtx_dereference(local, sta->ptk[key_idx]);
 486                 else
 487                         key = key_mtx_dereference(local, sta->gtk[key_idx]);
 488         } else
 489                 key = key_mtx_dereference(local, sdata->keys[key_idx]);
 490
 491         if (!key) {
 492                 ret = -ENOENT;
 493                 goto out_unlock;
 494         }
 495
 496         ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
 497
 498         ret = 0;
 499  out_unlock:
 500         mutex_unlock(&local->key_mtx);
 501         mutex_unlock(&local->sta_mtx);
 502
 503         return ret;
 504 }
 505
 506 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 507                              u8 key_idx, bool pairwise, const u8 *mac_addr,
 508                              void *cookie,
 509                              void (*callback)(void *cookie,
 510                                               struct key_params *params))
 511 {
 512         struct ieee80211_sub_if_data *sdata;
 513         struct sta_info *sta = NULL;
 514         u8 seq[6] = {0};
 515         struct key_params params;
 516         struct ieee80211_key *key = NULL;
 517         u64 pn64;
 518         u32 iv32;
 519         u16 iv16;
 520         int err = -ENOENT;
 521         struct ieee80211_key_seq kseq = {};
 522
 523         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 524
 525         rcu_read_lock();
 526
 527         if (mac_addr) {
 528                 sta = sta_info_get_bss(sdata, mac_addr);
 529                 if (!sta)
 530                         goto out;
 531
 532                 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 533                         key = rcu_dereference(sta->ptk[key_idx]);
 534                 else if (!pairwise &&
 535                          key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
 536                         key = rcu_dereference(sta->gtk[key_idx]);
 537         } else
 538                 key = rcu_dereference(sdata->keys[key_idx]);
 539
 540         if (!key)
 541                 goto out;
 542
 543         memset(&params, 0, sizeof(params));
 544
 545         params.cipher = key->conf.cipher;
 546
 547         switch (key->conf.cipher) {
 548         case WLAN_CIPHER_SUITE_TKIP:
 549                 pn64 = atomic64_read(&key->conf.tx_pn);
 550                 iv32 = TKIP_PN_TO_IV32(pn64);
 551                 iv16 = TKIP_PN_TO_IV16(pn64);
 552
 553                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 554                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 555                         drv_get_key_seq(sdata->local, key, &kseq);
 556                         iv32 = kseq.tkip.iv32;
 557                         iv16 = kseq.tkip.iv16;
 558                 }
 559
 560                 seq[0] = iv16 & 0xff;
 561                 seq[1] = (iv16 >> 8) & 0xff;
 562                 seq[2] = iv32 & 0xff;
 563                 seq[3] = (iv32 >> 8) & 0xff;
 564                 seq[4] = (iv32 >> 16) & 0xff;
 565                 seq[5] = (iv32 >> 24) & 0xff;
 566                 params.seq = seq;
 567                 params.seq_len = 6;
 568                 break;
 569         case WLAN_CIPHER_SUITE_CCMP:
 570         case WLAN_CIPHER_SUITE_CCMP_256:
 571         case WLAN_CIPHER_SUITE_AES_CMAC:
 572         case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 573                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 574                              offsetof(typeof(kseq), aes_cmac));
 575                 /* fall through */
 576         case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 577         case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 578                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 579                              offsetof(typeof(kseq), aes_gmac));
 580                 /* fall through */
 581         case WLAN_CIPHER_SUITE_GCMP:
 582         case WLAN_CIPHER_SUITE_GCMP_256:
 583                 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 584                              offsetof(typeof(kseq), gcmp));
 585
 586                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 587                     !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 588                         drv_get_key_seq(sdata->local, key, &kseq);
 589                         memcpy(seq, kseq.ccmp.pn, 6);
 590                 } else {
 591                         pn64 = atomic64_read(&key->conf.tx_pn);
 592                         seq[0] = pn64;
 593                         seq[1] = pn64 >> 8;
 594                         seq[2] = pn64 >> 16;
 595                         seq[3] = pn64 >> 24;
 596                         seq[4] = pn64 >> 32;
 597                         seq[5] = pn64 >> 40;
 598                 }
 599                 params.seq = seq;
 600                 params.seq_len = 6;
 601                 break;
 602         default:
 603                 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
 604                         break;
 605                 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
 606                         break;
 607                 drv_get_key_seq(sdata->local, key, &kseq);
 608                 params.seq = kseq.hw.seq;
 609                 params.seq_len = kseq.hw.seq_len;
 610                 break;
 611         }
 612
 613         params.key = key->conf.key;
 614         params.key_len = key->conf.keylen;
 615
 616         callback(cookie, &params);
 617         err = 0;
 618
 619  out:
 620         rcu_read_unlock();
 621         return err;
 622 }
 623
 624 static int ieee80211_config_default_key(struct wiphy *wiphy,
 625                                         struct net_device *dev,
 626                                         u8 key_idx, bool uni,
 627                                         bool multi)
 628 {
 629         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 630
 631         ieee80211_set_default_key(sdata, key_idx, uni, multi);
 632
 633         return 0;
 634 }
 635
 636 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 637                                              struct net_device *dev,
 638                                              u8 key_idx)
 639 {
 640         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 641
 642         ieee80211_set_default_mgmt_key(sdata, key_idx);
 643
 644         return 0;
 645 }
 646
 647 void sta_set_rate_info_tx(struct sta_info *sta,
 648                           const struct ieee80211_tx_rate *rate,
 649                           struct rate_info *rinfo)
 650 {
 651         rinfo->flags = 0;
 652         if (rate->flags & IEEE80211_TX_RC_MCS) {
 653                 rinfo->flags |= RATE_INFO_FLAGS_MCS;
 654                 rinfo->mcs = rate->idx;
 655         } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 656                 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 657                 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 658                 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 659         } else {
 660                 struct ieee80211_supported_band *sband;
 661                 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 662                 u16 brate;
 663
 664                 sband = ieee80211_get_sband(sta->sdata);
 665                 if (sband) {
 666                         brate = sband->bitrates[rate->idx].bitrate;
 667                         rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 668                 }
 669         }
 670         if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 671                 rinfo->bw = RATE_INFO_BW_40;
 672         else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 673                 rinfo->bw = RATE_INFO_BW_80;
 674         else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 675                 rinfo->bw = RATE_INFO_BW_160;
 676         else
 677                 rinfo->bw = RATE_INFO_BW_20;
 678         if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 679                 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 680 }
 681
 682 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 683                                   int idx, u8 *mac, struct station_info *sinfo)
 684 {
 685         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 686         struct ieee80211_local *local = sdata->local;
 687         struct sta_info *sta;
 688         int ret = -ENOENT;
 689
 690         mutex_lock(&local->sta_mtx);
 691
 692         sta = sta_info_get_by_idx(sdata, idx);
 693         if (sta) {
 694                 ret = 0;
 695                 memcpy(mac, sta->sta.addr, ETH_ALEN);
 696                 sta_set_sinfo(sta, sinfo, true);
 697         }
 698
 699         mutex_unlock(&local->sta_mtx);
 700
 701         return ret;
 702 }
 703
 704 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 705                                  int idx, struct survey_info *survey)
 706 {
 707         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 708
 709         return drv_get_survey(local, idx, survey);
 710 }
 711
 712 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 713                                  const u8 *mac, struct station_info *sinfo)
 714 {
 715         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 716         struct ieee80211_local *local = sdata->local;
 717         struct sta_info *sta;
 718         int ret = -ENOENT;
 719
 720         mutex_lock(&local->sta_mtx);
 721
 722         sta = sta_info_get_bss(sdata, mac);
 723         if (sta) {
 724                 ret = 0;
 725                 sta_set_sinfo(sta, sinfo, true);
 726         }
 727
 728         mutex_unlock(&local->sta_mtx);
 729
 730         return ret;
 731 }
 732
 733 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 734                                          struct cfg80211_chan_def *chandef)
 735 {
 736         struct ieee80211_local *local = wiphy_priv(wiphy);
 737         struct ieee80211_sub_if_data *sdata;
 738         int ret = 0;
 739
 740         if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 741                 return 0;
 742
 743         mutex_lock(&local->mtx);
 744         if (local->use_chanctx) {
 745                 sdata = rtnl_dereference(local->monitor_sdata);
 746                 if (sdata) {
 747                         ieee80211_vif_release_channel(sdata);
 748                         ret = ieee80211_vif_use_channel(sdata, chandef,
 749                                         IEEE80211_CHANCTX_EXCLUSIVE);
 750                 }
 751         } else if (local->open_count == local->monitors) {
 752                 local->_oper_chandef = *chandef;
 753                 ieee80211_hw_config(local, 0);
 754         }
 755
 756         if (ret == 0)
 757                 local->monitor_chandef = *chandef;
 758         mutex_unlock(&local->mtx);
 759
 760         return ret;
 761 }
 762
 763 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 764                                     const u8 *resp, size_t resp_len,
 765                                     const struct ieee80211_csa_settings *csa)
 766 {
 767         struct probe_resp *new, *old;
 768
 769         if (!resp || !resp_len)
 770                 return 1;
 771
 772         old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 773
 774         new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 775         if (!new)
 776                 return -ENOMEM;
 777
 778         new->len = resp_len;
 779         memcpy(new->data, resp, resp_len);
 780
 781         if (csa)
 782                 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
 783                        csa->n_counter_offsets_presp *
 784                        sizeof(new->csa_counter_offsets[0]));
 785
 786         rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 787         if (old)
 788                 kfree_rcu(old, rcu_head);
 789
 790         return 0;
 791 }
 792
 793 static int ieee80211_set_ftm_responder_params(
 794                                 struct ieee80211_sub_if_data *sdata,
 795                                 const u8 *lci, size_t lci_len,
 796                                 const u8 *civicloc, size_t civicloc_len)
 797 {
 798         struct ieee80211_ftm_responder_params *new, *old;
 799         struct ieee80211_bss_conf *bss_conf;
 800         u8 *pos;
 801         int len;
 802
 803         if (!lci_len && !civicloc_len)
 804                 return 0;
 805
 806         bss_conf = &sdata->vif.bss_conf;
 807         old = bss_conf->ftmr_params;
 808         len = lci_len + civicloc_len;
 809
 810         new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
 811         if (!new)
 812                 return -ENOMEM;
 813
 814         pos = (u8 *)(new + 1);
 815         if (lci_len) {
 816                 new->lci_len = lci_len;
 817                 new->lci = pos;
 818                 memcpy(pos, lci, lci_len);
 819                 pos += lci_len;
 820         }
 821
 822         if (civicloc_len) {
 823                 new->civicloc_len = civicloc_len;
 824                 new->civicloc = pos;
 825                 memcpy(pos, civicloc, civicloc_len);
 826                 pos += civicloc_len;
 827         }
 828
 829         bss_conf->ftmr_params = new;
 830         kfree(old);
 831
 832         return 0;
 833 }
 834
 835 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 836                                    struct cfg80211_beacon_data *params,
 837                                    const struct ieee80211_csa_settings *csa)
 838 {
 839         struct beacon_data *new, *old;
 840         int new_head_len, new_tail_len;
 841         int size, err;
 842         u32 changed = BSS_CHANGED_BEACON;
 843
 844         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 845
 846
 847         /* Need to have a beacon head if we don't have one yet */
 848         if (!params->head && !old)
 849                 return -EINVAL;
 850
 851         /* new or old head? */
 852         if (params->head)
 853                 new_head_len = params->head_len;
 854         else
 855                 new_head_len = old->head_len;
 856
 857         /* new or old tail? */
 858         if (params->tail || !old)
 859                 /* params->tail_len will be zero for !params->tail */
 860                 new_tail_len = params->tail_len;
 861         else
 862                 new_tail_len = old->tail_len;
 863
 864         size = sizeof(*new) + new_head_len + new_tail_len;
 865
 866         new = kzalloc(size, GFP_KERNEL);
 867         if (!new)
 868                 return -ENOMEM;
 869
 870         /* start filling the new info now */
 871
 872         /*
 873          * pointers go into the block we allocated,
 874          * memory is | beacon_data | head | tail |
 875          */
 876         new->head = ((u8 *) new) + sizeof(*new);
 877         new->tail = new->head + new_head_len;
 878         new->head_len = new_head_len;
 879         new->tail_len = new_tail_len;
 880
 881         if (csa) {
 882                 new->csa_current_counter = csa->count;
 883                 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
 884                        csa->n_counter_offsets_beacon *
 885                        sizeof(new->csa_counter_offsets[0]));
 886         }
 887
 888         /* copy in head */
 889         if (params->head)
 890                 memcpy(new->head, params->head, new_head_len);
 891         else
 892                 memcpy(new->head, old->head, new_head_len);
 893
 894         /* copy in optional tail */
 895         if (params->tail)
 896                 memcpy(new->tail, params->tail, new_tail_len);
 897         else
 898                 if (old)
 899                         memcpy(new->tail, old->tail, new_tail_len);
 900
 901         err = ieee80211_set_probe_resp(sdata, params->probe_resp,
 902                                        params->probe_resp_len, csa);
 903         if (err < 0)
 904                 return err;
 905         if (err == 0)
 906                 changed |= BSS_CHANGED_AP_PROBE_RESP;
 907
 908         if (params->ftm_responder != -1) {
 909                 sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
 910                 err = ieee80211_set_ftm_responder_params(sdata,
 911                                                          params->lci,
 912                                                          params->lci_len,
 913                                                          params->civicloc,
 914                                                          params->civicloc_len);
 915
 916                 if (err < 0)
 917                         return err;
 918
 919                 changed |= BSS_CHANGED_FTM_RESPONDER;
 920         }
 921
 922         rcu_assign_pointer(sdata->u.ap.beacon, new);
 923
 924         if (old)
 925                 kfree_rcu(old, rcu_head);
 926
 927         return changed;
 928 }
 929
 930 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 931                               struct cfg80211_ap_settings *params)
 932 {
 933         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 934         struct ieee80211_local *local = sdata->local;
 935         struct beacon_data *old;
 936         struct ieee80211_sub_if_data *vlan;
 937         u32 changed = BSS_CHANGED_BEACON_INT |
 938                       BSS_CHANGED_BEACON_ENABLED |
 939                       BSS_CHANGED_BEACON |
 940                       BSS_CHANGED_SSID |
 941                       BSS_CHANGED_P2P_PS |
 942                       BSS_CHANGED_TXPOWER;
 943         int err;
 944
 945         old = sdata_dereference(sdata->u.ap.beacon, sdata);
 946         if (old)
 947                 return -EALREADY;
 948
 949         switch (params->smps_mode) {
 950         case NL80211_SMPS_OFF:
 951                 sdata->smps_mode = IEEE80211_SMPS_OFF;
 952                 break;
 953         case NL80211_SMPS_STATIC:
 954                 sdata->smps_mode = IEEE80211_SMPS_STATIC;
 955                 break;
 956         case NL80211_SMPS_DYNAMIC:
 957                 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
 958                 break;
 959         default:
 960                 return -EINVAL;
 961         }
 962         sdata->u.ap.req_smps = sdata->smps_mode;
 963
 964         sdata->needed_rx_chains = sdata->local->rx_chains;
 965
 966         sdata->vif.bss_conf.beacon_int = params->beacon_interval;
 967
 968         if (params->he_cap)
 969                 sdata->vif.bss_conf.he_support = true;
 970
 971         mutex_lock(&local->mtx);
 972         err = ieee80211_vif_use_channel(sdata, &params->chandef,
 973                                         IEEE80211_CHANCTX_SHARED);
 974         if (!err)
 975                 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
 976         mutex_unlock(&local->mtx);
 977         if (err)
 978                 return err;
 979
 980         /*
 981          * Apply control port protocol, this allows us to
 982          * not encrypt dynamic WEP control frames.
 983          */
 984         sdata->control_port_protocol = params->crypto.control_port_ethertype;
 985         sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
 986         sdata->control_port_over_nl80211 =
 987                                 params->crypto.control_port_over_nl80211;
 988         sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
 989                                                         &params->crypto,
 990                                                         sdata->vif.type);
 991
 992         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
 993                 vlan->control_port_protocol =
 994                         params->crypto.control_port_ethertype;
 995                 vlan->control_port_no_encrypt =
 996                         params->crypto.control_port_no_encrypt;
 997                 vlan->control_port_over_nl80211 =
 998                         params->crypto.control_port_over_nl80211;
 999                 vlan->encrypt_headroom =
1000                         ieee80211_cs_headroom(sdata->local,
1001                                               &params->crypto,
1002                                               vlan->vif.type);
1003         }
1004
1005         sdata->vif.bss_conf.dtim_period = params->dtim_period;
1006         sdata->vif.bss_conf.enable_beacon = true;
1007         sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1008
1009         sdata->vif.bss_conf.ssid_len = params->ssid_len;
1010         if (params->ssid_len)
1011                 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1012                        params->ssid_len);
1013         sdata->vif.bss_conf.hidden_ssid =
1014                 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1015
1016         memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1017                sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1018         sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1019                 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1020         if (params->p2p_opp_ps)
1021                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1022                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
1023
1024         err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
1025         if (err < 0) {
1026                 ieee80211_vif_release_channel(sdata);
1027                 return err;
1028         }
1029         changed |= err;
1030
1031         err = drv_start_ap(sdata->local, sdata);
1032         if (err) {
1033                 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1034
1035                 if (old)
1036                         kfree_rcu(old, rcu_head);
1037                 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1038                 ieee80211_vif_release_channel(sdata);
1039                 return err;
1040         }
1041
1042         ieee80211_recalc_dtim(local, sdata);
1043         ieee80211_bss_info_change_notify(sdata, changed);
1044
1045         netif_carrier_on(dev);
1046         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1047                 netif_carrier_on(vlan->dev);
1048
1049         return 0;
1050 }
1051
1052 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1053                                    struct cfg80211_beacon_data *params)
1054 {
1055         struct ieee80211_sub_if_data *sdata;
1056         struct beacon_data *old;
1057         int err;
1058
1059         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1060         sdata_assert_lock(sdata);
1061
1062         /* don't allow changing the beacon while CSA is in place - offset
1063          * of channel switch counter may change
1064          */
1065         if (sdata->vif.csa_active)
1066                 return -EBUSY;
1067
1068         old = sdata_dereference(sdata->u.ap.beacon, sdata);
1069         if (!old)
1070                 return -ENOENT;
1071
1072         err = ieee80211_assign_beacon(sdata, params, NULL);
1073         if (err < 0)
1074                 return err;
1075         ieee80211_bss_info_change_notify(sdata, err);
1076         return 0;
1077 }
1078
1079 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1080 {
1081         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1082         struct ieee80211_sub_if_data *vlan;
1083         struct ieee80211_local *local = sdata->local;
1084         struct beacon_data *old_beacon;
1085         struct probe_resp *old_probe_resp;
1086         struct cfg80211_chan_def chandef;
1087
1088         sdata_assert_lock(sdata);
1089
1090         old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1091         if (!old_beacon)
1092                 return -ENOENT;
1093         old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1094
1095         /* abort any running channel switch */
1096         mutex_lock(&local->mtx);
1097         sdata->vif.csa_active = false;
1098         if (sdata->csa_block_tx) {
1099                 ieee80211_wake_vif_queues(local, sdata,
1100                                           IEEE80211_QUEUE_STOP_REASON_CSA);
1101                 sdata->csa_block_tx = false;
1102         }
1103
1104         mutex_unlock(&local->mtx);
1105
1106         kfree(sdata->u.ap.next_beacon);
1107         sdata->u.ap.next_beacon = NULL;
1108
1109         /* turn off carrier for this interface and dependent VLANs */
1110         list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1111                 netif_carrier_off(vlan->dev);
1112         netif_carrier_off(dev);
1113
1114         /* remove beacon and probe response */
1115         RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1116         RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1117         kfree_rcu(old_beacon, rcu_head);
1118         if (old_probe_resp)
1119                 kfree_rcu(old_probe_resp, rcu_head);
1120         sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1121
1122         kfree(sdata->vif.bss_conf.ftmr_params);
1123         sdata->vif.bss_conf.ftmr_params = NULL;
1124
1125         __sta_info_flush(sdata, true);
1126         ieee80211_free_keys(sdata, true);
1127
1128         sdata->vif.bss_conf.enable_beacon = false;
1129         sdata->vif.bss_conf.ssid_len = 0;
1130         clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1131         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1132
1133         if (sdata->wdev.cac_started) {
1134                 chandef = sdata->vif.bss_conf.chandef;
1135                 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1136                 cfg80211_cac_event(sdata->dev, &chandef,
1137                                    NL80211_RADAR_CAC_ABORTED,
1138                                    GFP_KERNEL);
1139         }
1140
1141         drv_stop_ap(sdata->local, sdata);
1142
1143         /* free all potentially still buffered bcast frames */
1144         local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1145         ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1146
1147         mutex_lock(&local->mtx);
1148         ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1149         ieee80211_vif_release_channel(sdata);
1150         mutex_unlock(&local->mtx);
1151
1152         return 0;
1153 }
1154
1155 static int sta_apply_auth_flags(struct ieee80211_local *local,
1156                                 struct sta_info *sta,
1157                                 u32 mask, u32 set)
1158 {
1159         int ret;
1160
1161         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1162             set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1163             !test_sta_flag(sta, WLAN_STA_AUTH)) {
1164                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1165                 if (ret)
1166                         return ret;
1167         }
1168
1169         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1170             set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1171             !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1172                 /*
1173                  * When peer becomes associated, init rate control as
1174                  * well. Some drivers require rate control initialized
1175                  * before drv_sta_state() is called.
1176                  */
1177                 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1178                         rate_control_rate_init(sta);
1179
1180                 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1181                 if (ret)
1182                         return ret;
1183         }
1184
1185         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1186                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1187                         ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1188                 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1189                         ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1190                 else
1191                         ret = 0;
1192                 if (ret)
1193                         return ret;
1194         }
1195
1196         if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1197             !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1198             test_sta_flag(sta, WLAN_STA_ASSOC)) {
1199                 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1200                 if (ret)
1201                         return ret;
1202         }
1203
1204         if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1205             !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1206             test_sta_flag(sta, WLAN_STA_AUTH)) {
1207                 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1208                 if (ret)
1209                         return ret;
1210         }
1211
1212         return 0;
1213 }
1214
1215 static void sta_apply_mesh_params(struct ieee80211_local *local,
1216                                   struct sta_info *sta,
1217                                   struct station_parameters *params)
1218 {
1219 #ifdef CONFIG_MAC80211_MESH
1220         struct ieee80211_sub_if_data *sdata = sta->sdata;
1221         u32 changed = 0;
1222
1223         if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1224                 switch (params->plink_state) {
1225                 case NL80211_PLINK_ESTAB:
1226                         if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1227                                 changed = mesh_plink_inc_estab_count(sdata);
1228                         sta->mesh->plink_state = params->plink_state;
1229                         sta->mesh->aid = params->peer_aid;
1230
1231                         ieee80211_mps_sta_status_update(sta);
1232                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1233                                       sdata->u.mesh.mshcfg.power_mode);
1234                         break;
1235                 case NL80211_PLINK_LISTEN:
1236                 case NL80211_PLINK_BLOCKED:
1237                 case NL80211_PLINK_OPN_SNT:
1238                 case NL80211_PLINK_OPN_RCVD:
1239                 case NL80211_PLINK_CNF_RCVD:
1240                 case NL80211_PLINK_HOLDING:
1241                         if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1242                                 changed = mesh_plink_dec_estab_count(sdata);
1243                         sta->mesh->plink_state = params->plink_state;
1244
1245                         ieee80211_mps_sta_status_update(sta);
1246                         changed |= ieee80211_mps_set_sta_local_pm(sta,
1247                                         NL80211_MESH_POWER_UNKNOWN);
1248                         break;
1249                 default:
1250                         /*  nothing  */
1251                         break;
1252                 }
1253         }
1254
1255         switch (params->plink_action) {
1256         case NL80211_PLINK_ACTION_NO_ACTION:
1257                 /* nothing */
1258                 break;
1259         case NL80211_PLINK_ACTION_OPEN:
1260                 changed |= mesh_plink_open(sta);
1261                 break;
1262         case NL80211_PLINK_ACTION_BLOCK:
1263                 changed |= mesh_plink_block(sta);
1264                 break;
1265         }
1266
1267         if (params->local_pm)
1268                 changed |= ieee80211_mps_set_sta_local_pm(sta,
1269                                                           params->local_pm);
1270
1271         ieee80211_mbss_info_change_notify(sdata, changed);
1272 #endif
1273 }
1274
1275 static int sta_apply_parameters(struct ieee80211_local *local,
1276                                 struct sta_info *sta,
1277                                 struct station_parameters *params)
1278 {
1279         int ret = 0;
1280         struct ieee80211_supported_band *sband;
1281         struct ieee80211_sub_if_data *sdata = sta->sdata;
1282         u32 mask, set;
1283
1284         sband = ieee80211_get_sband(sdata);
1285         if (!sband)
1286                 return -EINVAL;
1287
1288         mask = params->sta_flags_mask;
1289         set = params->sta_flags_set;
1290
1291         if (ieee80211_vif_is_mesh(&sdata->vif)) {
1292                 /*
1293                  * In mesh mode, ASSOCIATED isn't part of the nl80211
1294                  * API but must follow AUTHENTICATED for driver state.
1295                  */
1296                 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1297                         mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1298                 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1299                         set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1300         } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1301                 /*
1302                  * TDLS -- everything follows authorized, but
1303                  * only becoming authorized is possible, not
1304                  * going back
1305                  */
1306                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1307                         set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1308                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1309                         mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1310                                 BIT(NL80211_STA_FLAG_ASSOCIATED);
1311                 }
1312         }
1313
1314         if (mask & BIT(NL80211_STA_FLAG_WME) &&
1315             local->hw.queues >= IEEE80211_NUM_ACS)
1316                 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1317
1318         /* auth flags will be set later for TDLS,
1319          * and for unassociated stations that move to assocaited */
1320         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1321             !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1322               (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1323                 ret = sta_apply_auth_flags(local, sta, mask, set);
1324                 if (ret)
1325                         return ret;
1326         }
1327
1328         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1329                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1330                         set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1331                 else
1332                         clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1333         }
1334
1335         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1336                 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1337                 if (set & BIT(NL80211_STA_FLAG_MFP))
1338                         set_sta_flag(sta, WLAN_STA_MFP);
1339                 else
1340                         clear_sta_flag(sta, WLAN_STA_MFP);
1341         }
1342
1343         if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1344                 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1345                         set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1346                 else
1347                         clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1348         }
1349
1350         /* mark TDLS channel switch support, if the AP allows it */
1351         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1352             !sdata->u.mgd.tdls_chan_switch_prohibited &&
1353             params->ext_capab_len >= 4 &&
1354             params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1355                 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1356
1357         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1358             !sdata->u.mgd.tdls_wider_bw_prohibited &&
1359             ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1360             params->ext_capab_len >= 8 &&
1361             params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1362                 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1363
1364         if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1365                 sta->sta.uapsd_queues = params->uapsd_queues;
1366                 sta->sta.max_sp = params->max_sp;
1367         }
1368
1369         /* The sender might not have sent the last bit, consider it to be 0 */
1370         if (params->ext_capab_len >= 8) {
1371                 u8 val = (params->ext_capab[7] &
1372                           WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1373
1374                 /* we did get all the bits, take the MSB as well */
1375                 if (params->ext_capab_len >= 9) {
1376                         u8 val_msb = params->ext_capab[8] &
1377                                 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1378                         val_msb <<= 1;
1379                         val |= val_msb;
1380                 }
1381
1382                 switch (val) {
1383                 case 1:
1384                         sta->sta.max_amsdu_subframes = 32;
1385                         break;
1386                 case 2:
1387                         sta->sta.max_amsdu_subframes = 16;
1388                         break;
1389                 case 3:
1390                         sta->sta.max_amsdu_subframes = 8;
1391                         break;
1392                 default:
1393                         sta->sta.max_amsdu_subframes = 0;
1394                 }
1395         }
1396
1397         /*
1398          * cfg80211 validates this (1-2007) and allows setting the AID
1399          * only when creating a new station entry
1400          */
1401         if (params->aid)
1402                 sta->sta.aid = params->aid;
1403
1404         /*
1405          * Some of the following updates would be racy if called on an
1406          * existing station, via ieee80211_change_station(). However,
1407          * all such changes are rejected by cfg80211 except for updates
1408          * changing the supported rates on an existing but not yet used
1409          * TDLS peer.
1410          */
1411
1412         if (params->listen_interval >= 0)
1413                 sta->listen_interval = params->listen_interval;
1414
1415         if (params->supported_rates) {
1416                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1417                                          sband, params->supported_rates,
1418                                          params->supported_rates_len,
1419                                          &sta->sta.supp_rates[sband->band]);
1420         }
1421
1422         if (params->ht_capa)
1423                 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1424                                                   params->ht_capa, sta);
1425
1426         /* VHT can override some HT caps such as the A-MSDU max length */
1427         if (params->vht_capa)
1428                 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1429                                                     params->vht_capa, sta);
1430
1431         if (params->he_capa)
1432                 ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1433                                                   (void *)params->he_capa,
1434                                                   params->he_capa_len, sta);
1435
1436         if (params->opmode_notif_used) {
1437                 /* returned value is only needed for rc update, but the
1438                  * rc isn't initialized here yet, so ignore it
1439                  */
1440                 __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1441                                               sband->band);
1442         }
1443
1444         if (params->support_p2p_ps >= 0)
1445                 sta->sta.support_p2p_ps = params->support_p2p_ps;
1446
1447         if (ieee80211_vif_is_mesh(&sdata->vif))
1448                 sta_apply_mesh_params(local, sta, params);
1449
1450         /* set the STA state after all sta info from usermode has been set */
1451         if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1452             set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1453                 ret = sta_apply_auth_flags(local, sta, mask, set);
1454                 if (ret)
1455                         return ret;
1456         }
1457
1458         return 0;
1459 }
1460
1461 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1462                                  const u8 *mac,
1463                                  struct station_parameters *params)
1464 {
1465         struct ieee80211_local *local = wiphy_priv(wiphy);
1466         struct sta_info *sta;
1467         struct ieee80211_sub_if_data *sdata;
1468         int err;
1469         int layer2_update;
1470
1471         if (params->vlan) {
1472                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1473
1474                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1475                     sdata->vif.type != NL80211_IFTYPE_AP)
1476                         return -EINVAL;
1477         } else
1478                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1479
1480         if (ether_addr_equal(mac, sdata->vif.addr))
1481                 return -EINVAL;
1482
1483         if (is_multicast_ether_addr(mac))
1484                 return -EINVAL;
1485
1486         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1487         if (!sta)
1488                 return -ENOMEM;
1489
1490         if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1491                 sta->sta.tdls = true;
1492
1493         err = sta_apply_parameters(local, sta, params);
1494         if (err) {
1495                 sta_info_free(local, sta);
1496                 return err;
1497         }
1498
1499         /*
1500          * for TDLS and for unassociated station, rate control should be
1501          * initialized only when rates are known and station is marked
1502          * authorized/associated
1503          */
1504         if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1505             test_sta_flag(sta, WLAN_STA_ASSOC))
1506                 rate_control_rate_init(sta);
1507
1508         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1509                 sdata->vif.type == NL80211_IFTYPE_AP;
1510
1511         err = sta_info_insert_rcu(sta);
1512         if (err) {
1513                 rcu_read_unlock();
1514                 return err;
1515         }
1516
1517         if (layer2_update)
1518                 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr);
1519
1520         rcu_read_unlock();
1521
1522         return 0;
1523 }
1524
1525 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1526                                  struct station_del_parameters *params)
1527 {
1528         struct ieee80211_sub_if_data *sdata;
1529
1530         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1531
1532         if (params->mac)
1533                 return sta_info_destroy_addr_bss(sdata, params->mac);
1534
1535         sta_info_flush(sdata);
1536         return 0;
1537 }
1538
1539 static int ieee80211_change_station(struct wiphy *wiphy,
1540                                     struct net_device *dev, const u8 *mac,
1541                                     struct station_parameters *params)
1542 {
1543         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1544         struct ieee80211_local *local = wiphy_priv(wiphy);
1545         struct sta_info *sta;
1546         struct ieee80211_sub_if_data *vlansdata;
1547         enum cfg80211_station_type statype;
1548         int err;
1549
1550         mutex_lock(&local->sta_mtx);
1551
1552         sta = sta_info_get_bss(sdata, mac);
1553         if (!sta) {
1554                 err = -ENOENT;
1555                 goto out_err;
1556         }
1557
1558         switch (sdata->vif.type) {
1559         case NL80211_IFTYPE_MESH_POINT:
1560                 if (sdata->u.mesh.user_mpm)
1561                         statype = CFG80211_STA_MESH_PEER_USER;
1562                 else
1563                         statype = CFG80211_STA_MESH_PEER_KERNEL;
1564                 break;
1565         case NL80211_IFTYPE_ADHOC:
1566                 statype = CFG80211_STA_IBSS;
1567                 break;
1568         case NL80211_IFTYPE_STATION:
1569                 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1570                         statype = CFG80211_STA_AP_STA;
1571                         break;
1572                 }
1573                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1574                         statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1575                 else
1576                         statype = CFG80211_STA_TDLS_PEER_SETUP;
1577                 break;
1578         case NL80211_IFTYPE_AP:
1579         case NL80211_IFTYPE_AP_VLAN:
1580                 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1581                         statype = CFG80211_STA_AP_CLIENT;
1582                 else
1583                         statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1584                 break;
1585         default:
1586                 err = -EOPNOTSUPP;
1587                 goto out_err;
1588         }
1589
1590         err = cfg80211_check_station_change(wiphy, params, statype);
1591         if (err)
1592                 goto out_err;
1593
1594         if (params->vlan && params->vlan != sta->sdata->dev) {
1595                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1596
1597                 if (params->vlan->ieee80211_ptr->use_4addr) {
1598                         if (vlansdata->u.vlan.sta) {
1599                                 err = -EBUSY;
1600                                 goto out_err;
1601                         }
1602
1603                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1604                         __ieee80211_check_fast_rx_iface(vlansdata);
1605                 }
1606
1607                 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1608                     sta->sdata->u.vlan.sta)
1609                         RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1610
1611                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1612                         ieee80211_vif_dec_num_mcast(sta->sdata);
1613
1614                 sta->sdata = vlansdata;
1615                 ieee80211_check_fast_xmit(sta);
1616
1617                 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1618                         ieee80211_vif_inc_num_mcast(sta->sdata);
1619
1620                 cfg80211_send_layer2_update(sta->sdata->dev, sta->sta.addr);
1621         }
1622
1623         err = sta_apply_parameters(local, sta, params);
1624         if (err)
1625                 goto out_err;
1626
1627         mutex_unlock(&local->sta_mtx);
1628
1629         if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1630              sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1631             sta->known_smps_mode != sta->sdata->bss->req_smps &&
1632             test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1633             sta_info_tx_streams(sta) != 1) {
1634                 ht_dbg(sta->sdata,
1635                        "%pM just authorized and MIMO capable - update SMPS\n",
1636                        sta->sta.addr);
1637                 ieee80211_send_smps_action(sta->sdata,
1638                         sta->sdata->bss->req_smps,
1639                         sta->sta.addr,
1640                         sta->sdata->vif.bss_conf.bssid);
1641         }
1642
1643         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1644             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1645                 ieee80211_recalc_ps(local);
1646                 ieee80211_recalc_ps_vif(sdata);
1647         }
1648
1649         return 0;
1650 out_err:
1651         mutex_unlock(&local->sta_mtx);
1652         return err;
1653 }
1654
1655 #ifdef CONFIG_MAC80211_MESH
1656 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1657                                const u8 *dst, const u8 *next_hop)
1658 {
1659         struct ieee80211_sub_if_data *sdata;
1660         struct mesh_path *mpath;
1661         struct sta_info *sta;
1662
1663         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1664
1665         rcu_read_lock();
1666         sta = sta_info_get(sdata, next_hop);
1667         if (!sta) {
1668                 rcu_read_unlock();
1669                 return -ENOENT;
1670         }
1671
1672         mpath = mesh_path_add(sdata, dst);
1673         if (IS_ERR(mpath)) {
1674                 rcu_read_unlock();
1675                 return PTR_ERR(mpath);
1676         }
1677
1678         mesh_path_fix_nexthop(mpath, sta);
1679
1680         rcu_read_unlock();
1681         return 0;
1682 }
1683
1684 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1685                                const u8 *dst)
1686 {
1687         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1688
1689         if (dst)
1690                 return mesh_path_del(sdata, dst);
1691
1692         mesh_path_flush_by_iface(sdata);
1693         return 0;
1694 }
1695
1696 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1697                                   const u8 *dst, const u8 *next_hop)
1698 {
1699         struct ieee80211_sub_if_data *sdata;
1700         struct mesh_path *mpath;
1701         struct sta_info *sta;
1702
1703         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1704
1705         rcu_read_lock();
1706
1707         sta = sta_info_get(sdata, next_hop);
1708         if (!sta) {
1709                 rcu_read_unlock();
1710                 return -ENOENT;
1711         }
1712
1713         mpath = mesh_path_lookup(sdata, dst);
1714         if (!mpath) {
1715                 rcu_read_unlock();
1716                 return -ENOENT;
1717         }
1718
1719         mesh_path_fix_nexthop(mpath, sta);
1720
1721         rcu_read_unlock();
1722         return 0;
1723 }
1724
1725 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1726                             struct mpath_info *pinfo)
1727 {
1728         struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1729
1730         if (next_hop_sta)
1731                 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1732         else
1733                 eth_zero_addr(next_hop);
1734
1735         memset(pinfo, 0, sizeof(*pinfo));
1736
1737         pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1738
1739         pinfo->filled = MPATH_INFO_FRAME_QLEN |
1740                         MPATH_INFO_SN |
1741                         MPATH_INFO_METRIC |
1742                         MPATH_INFO_EXPTIME |
1743                         MPATH_INFO_DISCOVERY_TIMEOUT |
1744                         MPATH_INFO_DISCOVERY_RETRIES |
1745                         MPATH_INFO_FLAGS;
1746
1747         pinfo->frame_qlen = mpath->frame_queue.qlen;
1748         pinfo->sn = mpath->sn;
1749         pinfo->metric = mpath->metric;
1750         if (time_before(jiffies, mpath->exp_time))
1751                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1752         pinfo->discovery_timeout =
1753                         jiffies_to_msecs(mpath->discovery_timeout);
1754         pinfo->discovery_retries = mpath->discovery_retries;
1755         if (mpath->flags & MESH_PATH_ACTIVE)
1756                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1757         if (mpath->flags & MESH_PATH_RESOLVING)
1758                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1759         if (mpath->flags & MESH_PATH_SN_VALID)
1760                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1761         if (mpath->flags & MESH_PATH_FIXED)
1762                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1763         if (mpath->flags & MESH_PATH_RESOLVED)
1764                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1765 }
1766
1767 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1768                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1769
1770 {
1771         struct ieee80211_sub_if_data *sdata;
1772         struct mesh_path *mpath;
1773
1774         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1775
1776         rcu_read_lock();
1777         mpath = mesh_path_lookup(sdata, dst);
1778         if (!mpath) {
1779                 rcu_read_unlock();
1780                 return -ENOENT;
1781         }
1782         memcpy(dst, mpath->dst, ETH_ALEN);
1783         mpath_set_pinfo(mpath, next_hop, pinfo);
1784         rcu_read_unlock();
1785         return 0;
1786 }
1787
1788 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1789                                 int idx, u8 *dst, u8 *next_hop,
1790                                 struct mpath_info *pinfo)
1791 {
1792         struct ieee80211_sub_if_data *sdata;
1793         struct mesh_path *mpath;
1794
1795         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1796
1797         rcu_read_lock();
1798         mpath = mesh_path_lookup_by_idx(sdata, idx);
1799         if (!mpath) {
1800                 rcu_read_unlock();
1801                 return -ENOENT;
1802         }
1803         memcpy(dst, mpath->dst, ETH_ALEN);
1804         mpath_set_pinfo(mpath, next_hop, pinfo);
1805         rcu_read_unlock();
1806         return 0;
1807 }
1808
1809 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1810                           struct mpath_info *pinfo)
1811 {
1812         memset(pinfo, 0, sizeof(*pinfo));
1813         memcpy(mpp, mpath->mpp, ETH_ALEN);
1814
1815         pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
1816 }
1817
1818 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1819                              u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1820
1821 {
1822         struct ieee80211_sub_if_data *sdata;
1823         struct mesh_path *mpath;
1824
1825         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1826
1827         rcu_read_lock();
1828         mpath = mpp_path_lookup(sdata, dst);
1829         if (!mpath) {
1830                 rcu_read_unlock();
1831                 return -ENOENT;
1832         }
1833         memcpy(dst, mpath->dst, ETH_ALEN);
1834         mpp_set_pinfo(mpath, mpp, pinfo);
1835         rcu_read_unlock();
1836         return 0;
1837 }
1838
1839 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1840                               int idx, u8 *dst, u8 *mpp,
1841                               struct mpath_info *pinfo)
1842 {
1843         struct ieee80211_sub_if_data *sdata;
1844         struct mesh_path *mpath;
1845
1846         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1847
1848         rcu_read_lock();
1849         mpath = mpp_path_lookup_by_idx(sdata, idx);
1850         if (!mpath) {
1851                 rcu_read_unlock();
1852                 return -ENOENT;
1853         }
1854         memcpy(dst, mpath->dst, ETH_ALEN);
1855         mpp_set_pinfo(mpath, mpp, pinfo);
1856         rcu_read_unlock();
1857         return 0;
1858 }
1859
1860 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1861                                 struct net_device *dev,
1862                                 struct mesh_config *conf)
1863 {
1864         struct ieee80211_sub_if_data *sdata;
1865         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1866
1867         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1868         return 0;
1869 }
1870
1871 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1872 {
1873         return (mask >> (parm-1)) & 0x1;
1874 }
1875
1876 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1877                 const struct mesh_setup *setup)
1878 {
1879         u8 *new_ie;
1880         const u8 *old_ie;
1881         struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1882                                         struct ieee80211_sub_if_data, u.mesh);
1883
1884         /* allocate information elements */
1885         new_ie = NULL;
1886         old_ie = ifmsh->ie;
1887
1888         if (setup->ie_len) {
1889                 new_ie = kmemdup(setup->ie, setup->ie_len,
1890                                 GFP_KERNEL);
1891                 if (!new_ie)
1892                         return -ENOMEM;
1893         }
1894         ifmsh->ie_len = setup->ie_len;
1895         ifmsh->ie = new_ie;
1896         kfree(old_ie);
1897
1898         /* now copy the rest of the setup parameters */
1899         ifmsh->mesh_id_len = setup->mesh_id_len;
1900         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1901         ifmsh->mesh_sp_id = setup->sync_method;
1902         ifmsh->mesh_pp_id = setup->path_sel_proto;
1903         ifmsh->mesh_pm_id = setup->path_metric;
1904         ifmsh->user_mpm = setup->user_mpm;
1905         ifmsh->mesh_auth_id = setup->auth_id;
1906         ifmsh->security = IEEE80211_MESH_SEC_NONE;
1907         ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
1908         if (setup->is_authenticated)
1909                 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1910         if (setup->is_secure)
1911                 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1912
1913         /* mcast rate setting in Mesh Node */
1914         memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1915                                                 sizeof(setup->mcast_rate));
1916         sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1917
1918         sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1919         sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1920
1921         return 0;
1922 }
1923
1924 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1925                                         struct net_device *dev, u32 mask,
1926                                         const struct mesh_config *nconf)
1927 {
1928         struct mesh_config *conf;
1929         struct ieee80211_sub_if_data *sdata;
1930         struct ieee80211_if_mesh *ifmsh;
1931
1932         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1933         ifmsh = &sdata->u.mesh;
1934
1935         /* Set the config options which we are interested in setting */
1936         conf = &(sdata->u.mesh.mshcfg);
1937         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1938                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1939         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1940                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1941         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1942                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1943         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1944                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1945         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1946                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1947         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1948                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1949         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1950                 conf->element_ttl = nconf->element_ttl;
1951         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1952                 if (ifmsh->user_mpm)
1953                         return -EBUSY;
1954                 conf->auto_open_plinks = nconf->auto_open_plinks;
1955         }
1956         if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1957                 conf->dot11MeshNbrOffsetMaxNeighbor =
1958                         nconf->dot11MeshNbrOffsetMaxNeighbor;
1959         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1960                 conf->dot11MeshHWMPmaxPREQretries =
1961                         nconf->dot11MeshHWMPmaxPREQretries;
1962         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1963                 conf->path_refresh_time = nconf->path_refresh_time;
1964         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1965                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1966         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1967                 conf->dot11MeshHWMPactivePathTimeout =
1968                         nconf->dot11MeshHWMPactivePathTimeout;
1969         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1970                 conf->dot11MeshHWMPpreqMinInterval =
1971                         nconf->dot11MeshHWMPpreqMinInterval;
1972         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1973                 conf->dot11MeshHWMPperrMinInterval =
1974                         nconf->dot11MeshHWMPperrMinInterval;
1975         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1976                            mask))
1977                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1978                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1979         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1980                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1981                 ieee80211_mesh_root_setup(ifmsh);
1982         }
1983         if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1984                 /* our current gate announcement implementation rides on root
1985                  * announcements, so require this ifmsh to also be a root node
1986                  * */
1987                 if (nconf->dot11MeshGateAnnouncementProtocol &&
1988                     !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1989                         conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1990                         ieee80211_mesh_root_setup(ifmsh);
1991                 }
1992                 conf->dot11MeshGateAnnouncementProtocol =
1993                         nconf->dot11MeshGateAnnouncementProtocol;
1994         }
1995         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1996                 conf->dot11MeshHWMPRannInterval =
1997                         nconf->dot11MeshHWMPRannInterval;
1998         if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1999                 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2000         if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2001                 /* our RSSI threshold implementation is supported only for
2002                  * devices that report signal in dBm.
2003                  */
2004                 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2005                         return -ENOTSUPP;
2006                 conf->rssi_threshold = nconf->rssi_threshold;
2007         }
2008         if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2009                 conf->ht_opmode = nconf->ht_opmode;
2010                 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2011                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2012         }
2013         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2014                 conf->dot11MeshHWMPactivePathToRootTimeout =
2015                         nconf->dot11MeshHWMPactivePathToRootTimeout;
2016         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2017                 conf->dot11MeshHWMProotInterval =
2018                         nconf->dot11MeshHWMProotInterval;
2019         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2020                 conf->dot11MeshHWMPconfirmationInterval =
2021                         nconf->dot11MeshHWMPconfirmationInterval;
2022         if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2023                 conf->power_mode = nconf->power_mode;
2024                 ieee80211_mps_local_status_update(sdata);
2025         }
2026         if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2027                 conf->dot11MeshAwakeWindowDuration =
2028                         nconf->dot11MeshAwakeWindowDuration;
2029         if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2030                 conf->plink_timeout = nconf->plink_timeout;
2031         if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2032                 conf->dot11MeshConnectedToMeshGate =
2033                         nconf->dot11MeshConnectedToMeshGate;
2034         ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2035         return 0;
2036 }
2037
2038 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2039                                const struct mesh_config *conf,
2040                                const struct mesh_setup *setup)
2041 {
2042         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2043         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2044         int err;
2045
2046         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2047         err = copy_mesh_setup(ifmsh, setup);
2048         if (err)
2049                 return err;
2050
2051         sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2052
2053         /* can mesh use other SMPS modes? */
2054         sdata->smps_mode = IEEE80211_SMPS_OFF;
2055         sdata->needed_rx_chains = sdata->local->rx_chains;
2056
2057         mutex_lock(&sdata->local->mtx);
2058         err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2059                                         IEEE80211_CHANCTX_SHARED);
2060         mutex_unlock(&sdata->local->mtx);
2061         if (err)
2062                 return err;
2063
2064         return ieee80211_start_mesh(sdata);
2065 }
2066
2067 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2068 {
2069         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2070
2071         ieee80211_stop_mesh(sdata);
2072         mutex_lock(&sdata->local->mtx);
2073         ieee80211_vif_release_channel(sdata);
2074         mutex_unlock(&sdata->local->mtx);
2075
2076         return 0;
2077 }
2078 #endif
2079
2080 static int ieee80211_change_bss(struct wiphy *wiphy,
2081                                 struct net_device *dev,
2082                                 struct bss_parameters *params)
2083 {
2084         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2085         struct ieee80211_supported_band *sband;
2086         u32 changed = 0;
2087
2088         if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2089                 return -ENOENT;
2090
2091         sband = ieee80211_get_sband(sdata);
2092         if (!sband)
2093                 return -EINVAL;
2094
2095         if (params->use_cts_prot >= 0) {
2096                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2097                 changed |= BSS_CHANGED_ERP_CTS_PROT;
2098         }
2099         if (params->use_short_preamble >= 0) {
2100                 sdata->vif.bss_conf.use_short_preamble =
2101                         params->use_short_preamble;
2102                 changed |= BSS_CHANGED_ERP_PREAMBLE;
2103         }
2104
2105         if (!sdata->vif.bss_conf.use_short_slot &&
2106             sband->band == NL80211_BAND_5GHZ) {
2107                 sdata->vif.bss_conf.use_short_slot = true;
2108                 changed |= BSS_CHANGED_ERP_SLOT;
2109         }
2110
2111         if (params->use_short_slot_time >= 0) {
2112                 sdata->vif.bss_conf.use_short_slot =
2113                         params->use_short_slot_time;
2114                 changed |= BSS_CHANGED_ERP_SLOT;
2115         }
2116
2117         if (params->basic_rates) {
2118                 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2119                                          wiphy->bands[sband->band],
2120                                          params->basic_rates,
2121                                          params->basic_rates_len,
2122                                          &sdata->vif.bss_conf.basic_rates);
2123                 changed |= BSS_CHANGED_BASIC_RATES;
2124                 ieee80211_check_rate_mask(sdata);
2125         }
2126
2127         if (params->ap_isolate >= 0) {
2128                 if (params->ap_isolate)
2129                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2130                 else
2131                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2132                 ieee80211_check_fast_rx_iface(sdata);
2133         }
2134
2135         if (params->ht_opmode >= 0) {
2136                 sdata->vif.bss_conf.ht_operation_mode =
2137                         (u16) params->ht_opmode;
2138                 changed |= BSS_CHANGED_HT;
2139         }
2140
2141         if (params->p2p_ctwindow >= 0) {
2142                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2143                                         ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2144                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2145                         params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2146                 changed |= BSS_CHANGED_P2P_PS;
2147         }
2148
2149         if (params->p2p_opp_ps > 0) {
2150                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2151                                         IEEE80211_P2P_OPPPS_ENABLE_BIT;
2152                 changed |= BSS_CHANGED_P2P_PS;
2153         } else if (params->p2p_opp_ps == 0) {
2154                 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2155                                         ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2156                 changed |= BSS_CHANGED_P2P_PS;
2157         }
2158
2159         ieee80211_bss_info_change_notify(sdata, changed);
2160
2161         return 0;
2162 }
2163
2164 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2165                                     struct net_device *dev,
2166                                     struct ieee80211_txq_params *params)
2167 {
2168         struct ieee80211_local *local = wiphy_priv(wiphy);
2169         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2170         struct ieee80211_tx_queue_params p;
2171
2172         if (!local->ops->conf_tx)
2173                 return -EOPNOTSUPP;
2174
2175         if (local->hw.queues < IEEE80211_NUM_ACS)
2176                 return -EOPNOTSUPP;
2177
2178         memset(&p, 0, sizeof(p));
2179         p.aifs = params->aifs;
2180         p.cw_max = params->cwmax;
2181         p.cw_min = params->cwmin;
2182         p.txop = params->txop;
2183
2184         /*
2185          * Setting tx queue params disables u-apsd because it's only
2186          * called in master mode.
2187          */
2188         p.uapsd = false;
2189
2190         ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2191
2192         sdata->tx_conf[params->ac] = p;
2193         if (drv_conf_tx(local, sdata, params->ac, &p)) {
2194                 wiphy_debug(local->hw.wiphy,
2195                             "failed to set TX queue parameters for AC %d\n",
2196                             params->ac);
2197                 return -EINVAL;
2198         }
2199
2200         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2201
2202         return 0;
2203 }
2204
2205 #ifdef CONFIG_PM
2206 static int ieee80211_suspend(struct wiphy *wiphy,
2207                              struct cfg80211_wowlan *wowlan)
2208 {
2209         return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2210 }
2211
2212 static int ieee80211_resume(struct wiphy *wiphy)
2213 {
2214         return __ieee80211_resume(wiphy_priv(wiphy));
2215 }
2216 #else
2217 #define ieee80211_suspend NULL
2218 #define ieee80211_resume NULL
2219 #endif
2220
2221 static int ieee80211_scan(struct wiphy *wiphy,
2222                           struct cfg80211_scan_request *req)
2223 {
2224         struct ieee80211_sub_if_data *sdata;
2225
2226         sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2227
2228         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2229         case NL80211_IFTYPE_STATION:
2230         case NL80211_IFTYPE_ADHOC:
2231         case NL80211_IFTYPE_MESH_POINT:
2232         case NL80211_IFTYPE_P2P_CLIENT:
2233         case NL80211_IFTYPE_P2P_DEVICE:
2234                 break;
2235         case NL80211_IFTYPE_P2P_GO:
2236                 if (sdata->local->ops->hw_scan)
2237                         break;
2238                 /*
2239                  * FIXME: implement NoA while scanning in software,
2240                  * for now fall through to allow scanning only when
2241                  * beaconing hasn't been configured yet
2242                  */
2243                 /* fall through */
2244         case NL80211_IFTYPE_AP:
2245                 /*
2246                  * If the scan has been forced (and the driver supports
2247                  * forcing), don't care about being beaconing already.
2248                  * This will create problems to the attached stations (e.g. all
2249                  * the  frames sent while scanning on other channel will be
2250                  * lost)
2251                  */
2252                 if (sdata->u.ap.beacon &&
2253                     (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2254                      !(req->flags & NL80211_SCAN_FLAG_AP)))
2255                         return -EOPNOTSUPP;
2256                 break;
2257         case NL80211_IFTYPE_NAN:
2258         default:
2259                 return -EOPNOTSUPP;
2260         }
2261
2262         return ieee80211_request_scan(sdata, req);
2263 }
2264
2265 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2266 {
2267         ieee80211_scan_cancel(wiphy_priv(wiphy));
2268 }
2269
2270 static int
2271 ieee80211_sched_scan_start(struct wiphy *wiphy,
2272                            struct net_device *dev,
2273                            struct cfg80211_sched_scan_request *req)
2274 {
2275         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2276
2277         if (!sdata->local->ops->sched_scan_start)
2278                 return -EOPNOTSUPP;
2279
2280         return ieee80211_request_sched_scan_start(sdata, req);
2281 }
2282
2283 static int
2284 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2285                           u64 reqid)
2286 {
2287         struct ieee80211_local *local = wiphy_priv(wiphy);
2288
2289         if (!local->ops->sched_scan_stop)
2290                 return -EOPNOTSUPP;
2291
2292         return ieee80211_request_sched_scan_stop(local);
2293 }
2294
2295 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2296                           struct cfg80211_auth_request *req)
2297 {
2298         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2299 }
2300
2301 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2302                            struct cfg80211_assoc_request *req)
2303 {
2304         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2305 }
2306
2307 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2308                             struct cfg80211_deauth_request *req)
2309 {
2310         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2311 }
2312
2313 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2314                               struct cfg80211_disassoc_request *req)
2315 {
2316         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2317 }
2318
2319 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2320                                struct cfg80211_ibss_params *params)
2321 {
2322         return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2323 }
2324
2325 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2326 {
2327         return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2328 }
2329
2330 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2331                               struct ocb_setup *setup)
2332 {
2333         return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2334 }
2335
2336 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2337 {
2338         return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2339 }
2340
2341 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2342                                     int rate[NUM_NL80211_BANDS])
2343 {
2344         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2345
2346         memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2347                sizeof(int) * NUM_NL80211_BANDS);
2348
2349         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2350
2351         return 0;
2352 }
2353
2354 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2355 {
2356         struct ieee80211_local *local = wiphy_priv(wiphy);
2357         int err;
2358
2359         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2360                 ieee80211_check_fast_xmit_all(local);
2361
2362                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2363
2364                 if (err) {
2365                         ieee80211_check_fast_xmit_all(local);
2366                         return err;
2367                 }
2368         }
2369
2370         if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2371             (changed & WIPHY_PARAM_DYN_ACK)) {
2372                 s16 coverage_class;
2373
2374                 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2375                                         wiphy->coverage_class : -1;
2376                 err = drv_set_coverage_class(local, coverage_class);
2377
2378                 if (err)
2379                         return err;
2380         }
2381
2382         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2383                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2384
2385                 if (err)
2386                         return err;
2387         }
2388
2389         if (changed & WIPHY_PARAM_RETRY_SHORT) {
2390                 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2391                         return -EINVAL;
2392                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2393         }
2394         if (changed & WIPHY_PARAM_RETRY_LONG) {
2395                 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2396                         return -EINVAL;
2397                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2398         }
2399         if (changed &
2400             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2401                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2402
2403         if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2404                        WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2405                        WIPHY_PARAM_TXQ_QUANTUM))
2406                 ieee80211_txq_set_params(local);
2407
2408         return 0;
2409 }
2410
2411 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2412                                   struct wireless_dev *wdev,
2413                                   enum nl80211_tx_power_setting type, int mbm)
2414 {
2415         struct ieee80211_local *local = wiphy_priv(wiphy);
2416         struct ieee80211_sub_if_data *sdata;
2417         enum nl80211_tx_power_setting txp_type = type;
2418         bool update_txp_type = false;
2419         bool has_monitor = false;
2420
2421         if (wdev) {
2422                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2423
2424                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2425                         sdata = rtnl_dereference(local->monitor_sdata);
2426                         if (!sdata)
2427                                 return -EOPNOTSUPP;
2428                 }
2429
2430                 switch (type) {
2431                 case NL80211_TX_POWER_AUTOMATIC:
2432                         sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2433                         txp_type = NL80211_TX_POWER_LIMITED;
2434                         break;
2435                 case NL80211_TX_POWER_LIMITED:
2436                 case NL80211_TX_POWER_FIXED:
2437                         if (mbm < 0 || (mbm % 100))
2438                                 return -EOPNOTSUPP;
2439                         sdata->user_power_level = MBM_TO_DBM(mbm);
2440                         break;
2441                 }
2442
2443                 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2444                         update_txp_type = true;
2445                         sdata->vif.bss_conf.txpower_type = txp_type;
2446                 }
2447
2448                 ieee80211_recalc_txpower(sdata, update_txp_type);
2449
2450                 return 0;
2451         }
2452
2453         switch (type) {
2454         case NL80211_TX_POWER_AUTOMATIC:
2455                 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2456                 txp_type = NL80211_TX_POWER_LIMITED;
2457                 break;
2458         case NL80211_TX_POWER_LIMITED:
2459         case NL80211_TX_POWER_FIXED:
2460                 if (mbm < 0 || (mbm % 100))
2461                         return -EOPNOTSUPP;
2462                 local->user_power_level = MBM_TO_DBM(mbm);
2463                 break;
2464         }
2465
2466         mutex_lock(&local->iflist_mtx);
2467         list_for_each_entry(sdata, &local->interfaces, list) {
2468                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2469                         has_monitor = true;
2470                         continue;
2471                 }
2472                 sdata->user_power_level = local->user_power_level;
2473                 if (txp_type != sdata->vif.bss_conf.txpower_type)
2474                         update_txp_type = true;
2475                 sdata->vif.bss_conf.txpower_type = txp_type;
2476         }
2477         list_for_each_entry(sdata, &local->interfaces, list) {
2478                 if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2479                         continue;
2480                 ieee80211_recalc_txpower(sdata, update_txp_type);
2481         }
2482         mutex_unlock(&local->iflist_mtx);
2483
2484         if (has_monitor) {
2485                 sdata = rtnl_dereference(local->monitor_sdata);
2486                 if (sdata) {
2487                         sdata->user_power_level = local->user_power_level;
2488                         if (txp_type != sdata->vif.bss_conf.txpower_type)
2489                                 update_txp_type = true;
2490                         sdata->vif.bss_conf.txpower_type = txp_type;
2491
2492                         ieee80211_recalc_txpower(sdata, update_txp_type);
2493                 }
2494         }
2495
2496         return 0;
2497 }
2498
2499 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2500                                   struct wireless_dev *wdev,
2501                                   int *dbm)
2502 {
2503         struct ieee80211_local *local = wiphy_priv(wiphy);
2504         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2505
2506         if (local->ops->get_txpower)
2507                 return drv_get_txpower(local, sdata, dbm);
2508
2509         if (!local->use_chanctx)
2510                 *dbm = local->hw.conf.power_level;
2511         else
2512                 *dbm = sdata->vif.bss_conf.txpower;
2513
2514         return 0;
2515 }
2516
2517 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2518                                   const u8 *addr)
2519 {
2520         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2521
2522         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2523
2524         return 0;
2525 }
2526
2527 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2528 {
2529         struct ieee80211_local *local = wiphy_priv(wiphy);
2530
2531         drv_rfkill_poll(local);
2532 }
2533
2534 #ifdef CONFIG_NL80211_TESTMODE
2535 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2536                                   struct wireless_dev *wdev,
2537                                   void *data, int len)
2538 {
2539         struct ieee80211_local *local = wiphy_priv(wiphy);
2540         struct ieee80211_vif *vif = NULL;
2541
2542         if (!local->ops->testmode_cmd)
2543                 return -EOPNOTSUPP;
2544
2545         if (wdev) {
2546                 struct ieee80211_sub_if_data *sdata;
2547
2548                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2549                 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2550                         vif = &sdata->vif;
2551         }
2552
2553         return local->ops->testmode_cmd(&local->hw, vif, data, len);
2554 }
2555
2556 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2557                                    struct sk_buff *skb,
2558                                    struct netlink_callback *cb,
2559                                    void *data, int len)
2560 {
2561         struct ieee80211_local *local = wiphy_priv(wiphy);
2562
2563         if (!local->ops->testmode_dump)
2564                 return -EOPNOTSUPP;
2565
2566         return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2567 }
2568 #endif
2569
2570 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2571                                 enum ieee80211_smps_mode smps_mode)
2572 {
2573         struct sta_info *sta;
2574         enum ieee80211_smps_mode old_req;
2575
2576         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2577                 return -EINVAL;
2578
2579         if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2580                 return 0;
2581
2582         old_req = sdata->u.ap.req_smps;
2583         sdata->u.ap.req_smps = smps_mode;
2584
2585         /* AUTOMATIC doesn't mean much for AP - don't allow it */
2586         if (old_req == smps_mode ||
2587             smps_mode == IEEE80211_SMPS_AUTOMATIC)
2588                 return 0;
2589
2590         ht_dbg(sdata,
2591                "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2592                smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2593
2594         mutex_lock(&sdata->local->sta_mtx);
2595         list_for_each_entry(sta, &sdata->local->sta_list, list) {
2596                 /*
2597                  * Only stations associated to our AP and
2598                  * associated VLANs
2599                  */
2600                 if (sta->sdata->bss != &sdata->u.ap)
2601                         continue;
2602
2603                 /* This station doesn't support MIMO - skip it */
2604                 if (sta_info_tx_streams(sta) == 1)
2605                         continue;
2606
2607                 /*
2608                  * Don't wake up a STA just to send the action frame
2609                  * unless we are getting more restrictive.
2610                  */
2611                 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2612                     !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2613                                                    smps_mode)) {
2614                         ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2615                                sta->sta.addr);
2616                         continue;
2617                 }
2618
2619                 /*
2620                  * If the STA is not authorized, wait until it gets
2621                  * authorized and the action frame will be sent then.
2622                  */
2623                 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2624                         continue;
2625
2626                 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2627                 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2628                                            sdata->vif.bss_conf.bssid);
2629         }
2630         mutex_unlock(&sdata->local->sta_mtx);
2631
2632         sdata->smps_mode = smps_mode;
2633         ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2634
2635         return 0;
2636 }
2637
2638 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2639                                  enum ieee80211_smps_mode smps_mode)
2640 {
2641         const u8 *ap;
2642         enum ieee80211_smps_mode old_req;
2643         int err;
2644         struct sta_info *sta;
2645         bool tdls_peer_found = false;
2646
2647         lockdep_assert_held(&sdata->wdev.mtx);
2648
2649         if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2650                 return -EINVAL;
2651
2652         old_req = sdata->u.mgd.req_smps;
2653         sdata->u.mgd.req_smps = smps_mode;
2654
2655         if (old_req == smps_mode &&
2656             smps_mode != IEEE80211_SMPS_AUTOMATIC)
2657                 return 0;
2658
2659         /*
2660          * If not associated, or current association is not an HT
2661          * association, there's no need to do anything, just store
2662          * the new value until we associate.
2663          */
2664         if (!sdata->u.mgd.associated ||
2665             sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2666                 return 0;
2667
2668         ap = sdata->u.mgd.associated->bssid;
2669
2670         rcu_read_lock();
2671         list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2672                 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2673                     !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2674                         continue;
2675
2676                 tdls_peer_found = true;
2677                 break;
2678         }
2679         rcu_read_unlock();
2680
2681         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2682                 if (tdls_peer_found || !sdata->u.mgd.powersave)
2683                         smps_mode = IEEE80211_SMPS_OFF;
2684                 else
2685                         smps_mode = IEEE80211_SMPS_DYNAMIC;
2686         }
2687
2688         /* send SM PS frame to AP */
2689         err = ieee80211_send_smps_action(sdata, smps_mode,
2690                                          ap, ap);
2691         if (err)
2692                 sdata->u.mgd.req_smps = old_req;
2693         else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2694                 ieee80211_teardown_tdls_peers(sdata);
2695
2696         return err;
2697 }
2698
2699 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2700                                     bool enabled, int timeout)
2701 {
2702         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2703         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2704
2705         if (sdata->vif.type != NL80211_IFTYPE_STATION)
2706                 return -EOPNOTSUPP;
2707
2708         if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2709                 return -EOPNOTSUPP;
2710
2711         if (enabled == sdata->u.mgd.powersave &&
2712             timeout == local->dynamic_ps_forced_timeout)
2713                 return 0;
2714
2715         sdata->u.mgd.powersave = enabled;
2716         local->dynamic_ps_forced_timeout = timeout;
2717
2718         /* no change, but if automatic follow powersave */
2719         sdata_lock(sdata);
2720         __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2721         sdata_unlock(sdata);
2722
2723         if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2724                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2725
2726         ieee80211_recalc_ps(local);
2727         ieee80211_recalc_ps_vif(sdata);
2728         ieee80211_check_fast_rx_iface(sdata);
2729
2730         return 0;
2731 }
2732
2733 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2734                                          struct net_device *dev,
2735                                          s32 rssi_thold, u32 rssi_hyst)
2736 {
2737         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2738         struct ieee80211_vif *vif = &sdata->vif;
2739         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2740
2741         if (rssi_thold == bss_conf->cqm_rssi_thold &&
2742             rssi_hyst == bss_conf->cqm_rssi_hyst)
2743                 return 0;
2744
2745         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2746             !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2747                 return -EOPNOTSUPP;
2748
2749         bss_conf->cqm_rssi_thold = rssi_thold;
2750         bss_conf->cqm_rssi_hyst = rssi_hyst;
2751         bss_conf->cqm_rssi_low = 0;
2752         bss_conf->cqm_rssi_high = 0;
2753         sdata->u.mgd.last_cqm_event_signal = 0;
2754
2755         /* tell the driver upon association, unless already associated */
2756         if (sdata->u.mgd.associated &&
2757             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2758                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2759
2760         return 0;
2761 }
2762
2763 static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2764                                                struct net_device *dev,
2765                                                s32 rssi_low, s32 rssi_high)
2766 {
2767         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2768         struct ieee80211_vif *vif = &sdata->vif;
2769         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2770
2771         if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2772                 return -EOPNOTSUPP;
2773
2774         bss_conf->cqm_rssi_low = rssi_low;
2775         bss_conf->cqm_rssi_high = rssi_high;
2776         bss_conf->cqm_rssi_thold = 0;
2777         bss_conf->cqm_rssi_hyst = 0;
2778         sdata->u.mgd.last_cqm_event_signal = 0;
2779
2780         /* tell the driver upon association, unless already associated */
2781         if (sdata->u.mgd.associated &&
2782             sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2783                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2784
2785         return 0;
2786 }
2787
2788 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2789                                       struct net_device *dev,
2790                                       const u8 *addr,
2791                                       const struct cfg80211_bitrate_mask *mask)
2792 {
2793         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2794         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2795         int i, ret;
2796
2797         if (!ieee80211_sdata_running(sdata))
2798                 return -ENETDOWN;
2799
2800         /*
2801          * If active validate the setting and reject it if it doesn't leave
2802          * at least one basic rate usable, since we really have to be able
2803          * to send something, and if we're an AP we have to be able to do
2804          * so at a basic rate so that all clients can receive it.
2805          */
2806         if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2807             sdata->vif.bss_conf.chandef.chan) {
2808                 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2809                 enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2810
2811                 if (!(mask->control[band].legacy & basic_rates))
2812                         return -EINVAL;
2813         }
2814
2815         if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2816                 ret = drv_set_bitrate_mask(local, sdata, mask);
2817                 if (ret)
2818                         return ret;
2819         }
2820
2821         for (i = 0; i < NUM_NL80211_BANDS; i++) {
2822                 struct ieee80211_supported_band *sband = wiphy->bands[i];
2823                 int j;
2824
2825                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2826                 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2827                        sizeof(mask->control[i].ht_mcs));
2828                 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2829                        mask->control[i].vht_mcs,
2830                        sizeof(mask->control[i].vht_mcs));
2831
2832                 sdata->rc_has_mcs_mask[i] = false;
2833                 sdata->rc_has_vht_mcs_mask[i] = false;
2834                 if (!sband)
2835                         continue;
2836
2837                 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2838                         if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2839                                 sdata->rc_has_mcs_mask[i] = true;
2840                                 break;
2841                         }
2842                 }
2843
2844                 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2845                         if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2846                                 sdata->rc_has_vht_mcs_mask[i] = true;
2847                                 break;
2848                         }
2849                 }
2850         }
2851
2852         return 0;
2853 }
2854
2855 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2856                                            struct net_device *dev,
2857                                            struct cfg80211_chan_def *chandef,
2858                                            u32 cac_time_ms)
2859 {
2860         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2861         struct ieee80211_local *local = sdata->local;
2862         int err;
2863
2864         mutex_lock(&local->mtx);
2865         if (!list_empty(&local->roc_list) || local->scanning) {
2866                 err = -EBUSY;
2867                 goto out_unlock;
2868         }
2869
2870         /* whatever, but channel contexts should not complain about that one */
2871         sdata->smps_mode = IEEE80211_SMPS_OFF;
2872         sdata->needed_rx_chains = local->rx_chains;
2873
2874         err = ieee80211_vif_use_channel(sdata, chandef,
2875                                         IEEE80211_CHANCTX_SHARED);
2876         if (err)
2877                 goto out_unlock;
2878
2879         ieee80211_queue_delayed_work(&sdata->local->hw,
2880                                      &sdata->dfs_cac_timer_work,
2881                                      msecs_to_jiffies(cac_time_ms));
2882
2883  out_unlock:
2884         mutex_unlock(&local->mtx);
2885         return err;
2886 }
2887
2888 static struct cfg80211_beacon_data *
2889 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2890 {
2891         struct cfg80211_beacon_data *new_beacon;
2892         u8 *pos;
2893         int len;
2894
2895         len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2896               beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2897               beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
2898
2899         new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2900         if (!new_beacon)
2901                 return NULL;
2902
2903         pos = (u8 *)(new_beacon + 1);
2904         if (beacon->head_len) {
2905                 new_beacon->head_len = beacon->head_len;
2906                 new_beacon->head = pos;
2907                 memcpy(pos, beacon->head, beacon->head_len);
2908                 pos += beacon->head_len;
2909         }
2910         if (beacon->tail_len) {
2911                 new_beacon->tail_len = beacon->tail_len;
2912                 new_beacon->tail = pos;
2913                 memcpy(pos, beacon->tail, beacon->tail_len);
2914                 pos += beacon->tail_len;
2915         }
2916         if (beacon->beacon_ies_len) {
2917                 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2918                 new_beacon->beacon_ies = pos;
2919                 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2920                 pos += beacon->beacon_ies_len;
2921         }
2922         if (beacon->proberesp_ies_len) {
2923                 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2924                 new_beacon->proberesp_ies = pos;
2925                 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2926                 pos += beacon->proberesp_ies_len;
2927         }
2928         if (beacon->assocresp_ies_len) {
2929                 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2930                 new_beacon->assocresp_ies = pos;
2931                 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2932                 pos += beacon->assocresp_ies_len;
2933         }
2934         if (beacon->probe_resp_len) {
2935                 new_beacon->probe_resp_len = beacon->probe_resp_len;
2936                 new_beacon->probe_resp = pos;
2937                 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2938                 pos += beacon->probe_resp_len;
2939         }
2940
2941         /* might copy -1, meaning no changes requested */
2942         new_beacon->ftm_responder = beacon->ftm_responder;
2943         if (beacon->lci) {
2944                 new_beacon->lci_len = beacon->lci_len;
2945                 new_beacon->lci = pos;
2946                 memcpy(pos, beacon->lci, beacon->lci_len);
2947                 pos += beacon->lci_len;
2948         }
2949         if (beacon->civicloc) {
2950                 new_beacon->civicloc_len = beacon->civicloc_len;
2951                 new_beacon->civicloc = pos;
2952                 memcpy(pos, beacon->civicloc, beacon->civicloc_len);
2953                 pos += beacon->civicloc_len;
2954         }
2955
2956         return new_beacon;
2957 }
2958
2959 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2960 {
2961         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2962
2963         ieee80211_queue_work(&sdata->local->hw,
2964                              &sdata->csa_finalize_work);
2965 }
2966 EXPORT_SYMBOL(ieee80211_csa_finish);
2967
2968 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2969                                           u32 *changed)
2970 {
2971         int err;
2972
2973         switch (sdata->vif.type) {
2974         case NL80211_IFTYPE_AP:
2975                 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2976                                               NULL);
2977                 kfree(sdata->u.ap.next_beacon);
2978                 sdata->u.ap.next_beacon = NULL;
2979
2980                 if (err < 0)
2981                         return err;
2982                 *changed |= err;
2983                 break;
2984         case NL80211_IFTYPE_ADHOC:
2985                 err = ieee80211_ibss_finish_csa(sdata);
2986                 if (err < 0)
2987                         return err;
2988                 *changed |= err;
2989                 break;
2990 #ifdef CONFIG_MAC80211_MESH
2991         case NL80211_IFTYPE_MESH_POINT:
2992                 err = ieee80211_mesh_finish_csa(sdata);
2993                 if (err < 0)
2994                         return err;
2995                 *changed |= err;
2996                 break;
2997 #endif
2998         default:
2999                 WARN_ON(1);
3000                 return -EINVAL;
3001         }
3002
3003         return 0;
3004 }
3005
3006 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3007 {
3008         struct ieee80211_local *local = sdata->local;
3009         u32 changed = 0;
3010         int err;
3011
3012         sdata_assert_lock(sdata);
3013         lockdep_assert_held(&local->mtx);
3014         lockdep_assert_held(&local->chanctx_mtx);
3015
3016         /*
3017          * using reservation isn't immediate as it may be deferred until later
3018          * with multi-vif. once reservation is complete it will re-schedule the
3019          * work with no reserved_chanctx so verify chandef to check if it
3020          * completed successfully
3021          */
3022
3023         if (sdata->reserved_chanctx) {
3024                 /*
3025                  * with multi-vif csa driver may call ieee80211_csa_finish()
3026                  * many times while waiting for other interfaces to use their
3027                  * reservations
3028                  */
3029                 if (sdata->reserved_ready)
3030                         return 0;
3031
3032                 return ieee80211_vif_use_reserved_context(sdata);
3033         }
3034
3035         if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3036                                         &sdata->csa_chandef))
3037                 return -EINVAL;
3038
3039         sdata->vif.csa_active = false;
3040
3041         err = ieee80211_set_after_csa_beacon(sdata, &changed);
3042         if (err)
3043                 return err;
3044
3045         ieee80211_bss_info_change_notify(sdata, changed);
3046
3047         if (sdata->csa_block_tx) {
3048                 ieee80211_wake_vif_queues(local, sdata,
3049                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3050                 sdata->csa_block_tx = false;
3051         }
3052
3053         err = drv_post_channel_switch(sdata);
3054         if (err)
3055                 return err;
3056
3057         cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3058
3059         return 0;
3060 }
3061
3062 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3063 {
3064         if (__ieee80211_csa_finalize(sdata)) {
3065                 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3066                 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3067                                     GFP_KERNEL);
3068         }
3069 }
3070
3071 void ieee80211_csa_finalize_work(struct work_struct *work)
3072 {
3073         struct ieee80211_sub_if_data *sdata =
3074                 container_of(work, struct ieee80211_sub_if_data,
3075                              csa_finalize_work);
3076         struct ieee80211_local *local = sdata->local;
3077
3078         sdata_lock(sdata);
3079         mutex_lock(&local->mtx);
3080         mutex_lock(&local->chanctx_mtx);
3081
3082         /* AP might have been stopped while waiting for the lock. */
3083         if (!sdata->vif.csa_active)
3084                 goto unlock;
3085
3086         if (!ieee80211_sdata_running(sdata))
3087                 goto unlock;
3088
3089         ieee80211_csa_finalize(sdata);
3090
3091 unlock:
3092         mutex_unlock(&local->chanctx_mtx);
3093         mutex_unlock(&local->mtx);
3094         sdata_unlock(sdata);
3095 }
3096
3097 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3098                                     struct cfg80211_csa_settings *params,
3099                                     u32 *changed)
3100 {
3101         struct ieee80211_csa_settings csa = {};
3102         int err;
3103
3104         switch (sdata->vif.type) {
3105         case NL80211_IFTYPE_AP:
3106                 sdata->u.ap.next_beacon =
3107                         cfg80211_beacon_dup(&params->beacon_after);
3108                 if (!sdata->u.ap.next_beacon)
3109                         return -ENOMEM;
3110
3111                 /*
3112                  * With a count of 0, we don't have to wait for any
3113                  * TBTT before switching, so complete the CSA
3114                  * immediately.  In theory, with a count == 1 we
3115                  * should delay the switch until just before the next
3116                  * TBTT, but that would complicate things so we switch
3117                  * immediately too.  If we would delay the switch
3118                  * until the next TBTT, we would have to set the probe
3119                  * response here.
3120                  *
3121                  * TODO: A channel switch with count <= 1 without
3122                  * sending a CSA action frame is kind of useless,
3123                  * because the clients won't know we're changing
3124                  * channels.  The action frame must be implemented
3125                  * either here or in the userspace.
3126                  */
3127                 if (params->count <= 1)
3128                         break;
3129
3130                 if ((params->n_counter_offsets_beacon >
3131                      IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3132                     (params->n_counter_offsets_presp >
3133                      IEEE80211_MAX_CSA_COUNTERS_NUM))
3134                         return -EINVAL;
3135
3136                 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3137                 csa.counter_offsets_presp = params->counter_offsets_presp;
3138                 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3139                 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3140                 csa.count = params->count;
3141
3142                 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
3143                 if (err < 0) {
3144                         kfree(sdata->u.ap.next_beacon);
3145                         return err;
3146                 }
3147                 *changed |= err;
3148
3149                 break;
3150         case NL80211_IFTYPE_ADHOC:
3151                 if (!sdata->vif.bss_conf.ibss_joined)
3152                         return -EINVAL;
3153
3154                 if (params->chandef.width != sdata->u.ibss.chandef.width)
3155                         return -EINVAL;
3156
3157                 switch (params->chandef.width) {
3158                 case NL80211_CHAN_WIDTH_40:
3159                         if (cfg80211_get_chandef_type(&params->chandef) !=
3160                             cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3161                                 return -EINVAL;
3162                 case NL80211_CHAN_WIDTH_5:
3163                 case NL80211_CHAN_WIDTH_10:
3164                 case NL80211_CHAN_WIDTH_20_NOHT:
3165                 case NL80211_CHAN_WIDTH_20:
3166                         break;
3167                 default:
3168                         return -EINVAL;
3169                 }
3170
3171                 /* changes into another band are not supported */
3172                 if (sdata->u.ibss.chandef.chan->band !=
3173                     params->chandef.chan->band)
3174                         return -EINVAL;
3175
3176                 /* see comments in the NL80211_IFTYPE_AP block */
3177                 if (params->count > 1) {
3178                         err = ieee80211_ibss_csa_beacon(sdata, params);
3179                         if (err < 0)
3180                                 return err;
3181                         *changed |= err;
3182                 }
3183
3184                 ieee80211_send_action_csa(sdata, params);
3185
3186                 break;
3187 #ifdef CONFIG_MAC80211_MESH
3188         case NL80211_IFTYPE_MESH_POINT: {
3189                 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3190
3191                 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3192                         return -EINVAL;
3193
3194                 /* changes into another band are not supported */
3195                 if (sdata->vif.bss_conf.chandef.chan->band !=
3196                     params->chandef.chan->band)
3197                         return -EINVAL;
3198
3199                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3200                         ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3201                         if (!ifmsh->pre_value)
3202                                 ifmsh->pre_value = 1;
3203                         else
3204                                 ifmsh->pre_value++;
3205                 }
3206
3207                 /* see comments in the NL80211_IFTYPE_AP block */
3208                 if (params->count > 1) {
3209                         err = ieee80211_mesh_csa_beacon(sdata, params);
3210                         if (err < 0) {
3211                                 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3212                                 return err;
3213                         }
3214                         *changed |= err;
3215                 }
3216
3217                 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3218                         ieee80211_send_action_csa(sdata, params);
3219
3220                 break;
3221                 }
3222 #endif
3223         default:
3224                 return -EOPNOTSUPP;
3225         }
3226
3227         return 0;
3228 }
3229
3230 static int
3231 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3232                            struct cfg80211_csa_settings *params)
3233 {
3234         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3235         struct ieee80211_local *local = sdata->local;
3236         struct ieee80211_channel_switch ch_switch;
3237         struct ieee80211_chanctx_conf *conf;
3238         struct ieee80211_chanctx *chanctx;
3239         u32 changed = 0;
3240         int err;
3241
3242         sdata_assert_lock(sdata);
3243         lockdep_assert_held(&local->mtx);
3244
3245         if (!list_empty(&local->roc_list) || local->scanning)
3246                 return -EBUSY;
3247
3248         if (sdata->wdev.cac_started)
3249                 return -EBUSY;
3250
3251         if (cfg80211_chandef_identical(&params->chandef,
3252                                        &sdata->vif.bss_conf.chandef))
3253                 return -EINVAL;
3254
3255         /* don't allow another channel switch if one is already active. */
3256         if (sdata->vif.csa_active)
3257                 return -EBUSY;
3258
3259         mutex_lock(&local->chanctx_mtx);
3260         conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3261                                          lockdep_is_held(&local->chanctx_mtx));
3262         if (!conf) {
3263                 err = -EBUSY;
3264                 goto out;
3265         }
3266
3267         chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3268
3269         ch_switch.timestamp = 0;
3270         ch_switch.device_timestamp = 0;
3271         ch_switch.block_tx = params->block_tx;
3272         ch_switch.chandef = params->chandef;
3273         ch_switch.count = params->count;
3274
3275         err = drv_pre_channel_switch(sdata, &ch_switch);
3276         if (err)
3277                 goto out;
3278
3279         err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3280                                             chanctx->mode,
3281                                             params->radar_required);
3282         if (err)
3283                 goto out;
3284
3285         /* if reservation is invalid then this will fail */
3286         err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3287         if (err) {
3288                 ieee80211_vif_unreserve_chanctx(sdata);
3289                 goto out;
3290         }
3291
3292         err = ieee80211_set_csa_beacon(sdata, params, &changed);
3293         if (err) {
3294                 ieee80211_vif_unreserve_chanctx(sdata);
3295                 goto out;
3296         }
3297
3298         sdata->csa_chandef = params->chandef;
3299         sdata->csa_block_tx = params->block_tx;
3300         sdata->vif.csa_active = true;
3301
3302         if (sdata->csa_block_tx)
3303                 ieee80211_stop_vif_queues(local, sdata,
3304                                           IEEE80211_QUEUE_STOP_REASON_CSA);
3305
3306         cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3307                                           params->count);
3308
3309         if (changed) {
3310                 ieee80211_bss_info_change_notify(sdata, changed);
3311                 drv_channel_switch_beacon(sdata, &params->chandef);
3312         } else {
3313                 /* if the beacon didn't change, we can finalize immediately */
3314                 ieee80211_csa_finalize(sdata);
3315         }
3316
3317 out:
3318         mutex_unlock(&local->chanctx_mtx);
3319         return err;
3320 }
3321
3322 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3323                              struct cfg80211_csa_settings *params)
3324 {
3325         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3326         struct ieee80211_local *local = sdata->local;
3327         int err;
3328
3329         mutex_lock(&local->mtx);
3330         err = __ieee80211_channel_switch(wiphy, dev, params);
3331         mutex_unlock(&local->mtx);
3332
3333         return err;
3334 }
3335
3336 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3337 {
3338         lockdep_assert_held(&local->mtx);
3339
3340         local->roc_cookie_counter++;
3341
3342         /* wow, you wrapped 64 bits ... more likely a bug */
3343         if (WARN_ON(local->roc_cookie_counter == 0))
3344                 local->roc_cookie_counter++;
3345
3346         return local->roc_cookie_counter;
3347 }
3348
3349 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3350                              u64 *cookie, gfp_t gfp)
3351 {
3352         unsigned long spin_flags;
3353         struct sk_buff *ack_skb;
3354         int id;
3355
3356         ack_skb = skb_copy(skb, gfp);
3357         if (!ack_skb)
3358                 return -ENOMEM;
3359
3360         spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3361         id = idr_alloc(&local->ack_status_frames, ack_skb,
3362                        1, 0x10000, GFP_ATOMIC);
3363         spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3364
3365         if (id < 0) {
3366                 kfree_skb(ack_skb);
3367                 return -ENOMEM;
3368         }
3369
3370         IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3371
3372         *cookie = ieee80211_mgmt_tx_cookie(local);
3373         IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3374
3375         return 0;
3376 }
3377
3378 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3379                                           struct wireless_dev *wdev,
3380                                           u16 frame_type, bool reg)
3381 {
3382         struct ieee80211_local *local = wiphy_priv(wiphy);
3383         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3384
3385         switch (frame_type) {
3386         case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3387                 if (reg) {
3388                         local->probe_req_reg++;
3389                         sdata->vif.probe_req_reg++;
3390                 } else {
3391                         if (local->probe_req_reg)
3392                                 local->probe_req_reg--;
3393
3394                         if (sdata->vif.probe_req_reg)
3395                                 sdata->vif.probe_req_reg--;
3396                 }
3397
3398                 if (!local->open_count)
3399                         break;
3400
3401                 if (sdata->vif.probe_req_reg == 1)
3402                         drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3403                                                 FIF_PROBE_REQ);
3404                 else if (sdata->vif.probe_req_reg == 0)
3405                         drv_config_iface_filter(local, sdata, 0,
3406                                                 FIF_PROBE_REQ);
3407
3408                 ieee80211_configure_filter(local);
3409                 break;
3410         default:
3411                 break;
3412         }
3413 }
3414
3415 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3416 {
3417         struct ieee80211_local *local = wiphy_priv(wiphy);
3418
3419         if (local->started)
3420                 return -EOPNOTSUPP;
3421
3422         return drv_set_antenna(local, tx_ant, rx_ant);
3423 }
3424
3425 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3426 {
3427         struct ieee80211_local *local = wiphy_priv(wiphy);
3428
3429         return drv_get_antenna(local, tx_ant, rx_ant);
3430 }
3431
3432 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3433                                     struct net_device *dev,
3434                                     struct cfg80211_gtk_rekey_data *data)
3435 {
3436         struct ieee80211_local *local = wiphy_priv(wiphy);
3437         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3438
3439         if (!local->ops->set_rekey_data)
3440                 return -EOPNOTSUPP;
3441
3442         drv_set_rekey_data(local, sdata, data);
3443
3444         return 0;
3445 }
3446
3447 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3448                                   const u8 *peer, u64 *cookie)
3449 {
3450         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3451         struct ieee80211_local *local = sdata->local;
3452         struct ieee80211_qos_hdr *nullfunc;
3453         struct sk_buff *skb;
3454         int size = sizeof(*nullfunc);
3455         __le16 fc;
3456         bool qos;
3457         struct ieee80211_tx_info *info;
3458         struct sta_info *sta;
3459         struct ieee80211_chanctx_conf *chanctx_conf;
3460         enum nl80211_band band;
3461         int ret;
3462
3463         /* the lock is needed to assign the cookie later */
3464         mutex_lock(&local->mtx);
3465
3466         rcu_read_lock();
3467         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3468         if (WARN_ON(!chanctx_conf)) {
3469                 ret = -EINVAL;
3470                 goto unlock;
3471         }
3472         band = chanctx_conf->def.chan->band;
3473         sta = sta_info_get_bss(sdata, peer);
3474         if (sta) {
3475                 qos = sta->sta.wme;
3476         } else {
3477                 ret = -ENOLINK;
3478                 goto unlock;
3479         }
3480
3481         if (qos) {
3482                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3483                                  IEEE80211_STYPE_QOS_NULLFUNC |
3484                                  IEEE80211_FCTL_FROMDS);
3485         } else {
3486                 size -= 2;
3487                 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3488                                  IEEE80211_STYPE_NULLFUNC |
3489                                  IEEE80211_FCTL_FROMDS);
3490         }
3491
3492         skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3493         if (!skb) {
3494                 ret = -ENOMEM;
3495                 goto unlock;
3496         }
3497
3498         skb->dev = dev;
3499
3500         skb_reserve(skb, local->hw.extra_tx_headroom);
3501
3502         nullfunc = skb_put(skb, size);
3503         nullfunc->frame_control = fc;
3504         nullfunc->duration_id = 0;
3505         memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3506         memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3507         memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3508         nullfunc->seq_ctrl = 0;
3509
3510         info = IEEE80211_SKB_CB(skb);
3511
3512         info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3513                        IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3514         info->band = band;
3515
3516         skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3517         skb->priority = 7;
3518         if (qos)
3519                 nullfunc->qos_ctrl = cpu_to_le16(7);
3520
3521         ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3522         if (ret) {
3523                 kfree_skb(skb);
3524                 goto unlock;
3525         }
3526
3527         local_bh_disable();
3528         ieee80211_xmit(sdata, sta, skb, 0);
3529         local_bh_enable();
3530
3531         ret = 0;
3532 unlock:
3533         rcu_read_unlock();
3534         mutex_unlock(&local->mtx);
3535
3536         return ret;
3537 }
3538
3539 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3540                                      struct wireless_dev *wdev,
3541                                      struct cfg80211_chan_def *chandef)
3542 {
3543         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3544         struct ieee80211_local *local = wiphy_priv(wiphy);
3545         struct ieee80211_chanctx_conf *chanctx_conf;
3546         int ret = -ENODATA;
3547
3548         rcu_read_lock();
3549         chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3550         if (chanctx_conf) {
3551                 *chandef = sdata->vif.bss_conf.chandef;
3552                 ret = 0;
3553         } else if (local->open_count > 0 &&
3554                    local->open_count == local->monitors &&
3555                    sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3556                 if (local->use_chanctx)
3557                         *chandef = local->monitor_chandef;
3558                 else
3559                         *chandef = local->_oper_chandef;
3560                 ret = 0;
3561         }
3562         rcu_read_unlock();
3563
3564         return ret;
3565 }
3566
3567 #ifdef CONFIG_PM
3568 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3569 {
3570         drv_set_wakeup(wiphy_priv(wiphy), enabled);
3571 }
3572 #endif
3573
3574 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3575                                  struct net_device *dev,
3576                                  struct cfg80211_qos_map *qos_map)
3577 {
3578         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3579         struct mac80211_qos_map *new_qos_map, *old_qos_map;
3580
3581         if (qos_map) {
3582                 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3583                 if (!new_qos_map)
3584                         return -ENOMEM;
3585                 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3586         } else {
3587                 /* A NULL qos_map was passed to disable QoS mapping */
3588                 new_qos_map = NULL;
3589         }
3590
3591         old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3592         rcu_assign_pointer(sdata->qos_map, new_qos_map);
3593         if (old_qos_map)
3594                 kfree_rcu(old_qos_map, rcu_head);
3595
3596         return 0;
3597 }
3598
3599 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3600                                       struct net_device *dev,
3601                                       struct cfg80211_chan_def *chandef)
3602 {
3603         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3604         int ret;
3605         u32 changed = 0;
3606
3607         ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3608         if (ret == 0)
3609                 ieee80211_bss_info_change_notify(sdata, changed);
3610
3611         return ret;
3612 }
3613
3614 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3615                                u8 tsid, const u8 *peer, u8 up,
3616                                u16 admitted_time)
3617 {
3618         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3619         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3620         int ac = ieee802_1d_to_ac[up];
3621
3622         if (sdata->vif.type != NL80211_IFTYPE_STATION)
3623                 return -EOPNOTSUPP;
3624
3625         if (!(sdata->wmm_acm & BIT(up)))
3626                 return -EINVAL;
3627
3628         if (ifmgd->tx_tspec[ac].admitted_time)
3629                 return -EBUSY;
3630
3631         if (admitted_time) {
3632                 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3633                 ifmgd->tx_tspec[ac].tsid = tsid;
3634                 ifmgd->tx_tspec[ac].up = up;
3635         }
3636
3637         return 0;
3638 }
3639
3640 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3641                                u8 tsid, const u8 *peer)
3642 {
3643         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3644         struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3645         struct ieee80211_local *local = wiphy_priv(wiphy);
3646         int ac;
3647
3648         for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3649                 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3650
3651                 /* skip unused entries */
3652                 if (!tx_tspec->admitted_time)
3653                         continue;
3654
3655                 if (tx_tspec->tsid != tsid)
3656                         continue;
3657
3658                 /* due to this new packets will be reassigned to non-ACM ACs */
3659                 tx_tspec->up = -1;
3660
3661                 /* Make sure that all packets have been sent to avoid to
3662                  * restore the QoS params on packets that are still on the
3663                  * queues.
3664                  */
3665                 synchronize_net();
3666                 ieee80211_flush_queues(local, sdata, false);
3667
3668                 /* restore the normal QoS parameters
3669                  * (unconditionally to avoid races)
3670                  */
3671                 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3672                 tx_tspec->downgraded = false;
3673                 ieee80211_sta_handle_tspec_ac_params(sdata);
3674
3675                 /* finally clear all the data */
3676                 memset(tx_tspec, 0, sizeof(*tx_tspec));
3677
3678                 return 0;
3679         }
3680
3681         return -ENOENT;
3682 }
3683
3684 void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3685                                    u8 inst_id,
3686                                    enum nl80211_nan_func_term_reason reason,
3687                                    gfp_t gfp)
3688 {
3689         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3690         struct cfg80211_nan_func *func;
3691         u64 cookie;
3692
3693         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3694                 return;
3695
3696         spin_lock_bh(&sdata->u.nan.func_lock);
3697
3698         func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3699         if (WARN_ON(!func)) {
3700                 spin_unlock_bh(&sdata->u.nan.func_lock);
3701                 return;
3702         }
3703
3704         cookie = func->cookie;
3705         idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3706
3707         spin_unlock_bh(&sdata->u.nan.func_lock);
3708
3709         cfg80211_free_nan_func(func);
3710
3711         cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3712                                      reason, cookie, gfp);
3713 }
3714 EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3715
3716 void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3717                               struct cfg80211_nan_match_params *match,
3718                               gfp_t gfp)
3719 {
3720         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3721         struct cfg80211_nan_func *func;
3722
3723         if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3724                 return;
3725
3726         spin_lock_bh(&sdata->u.nan.func_lock);
3727
3728         func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3729         if (WARN_ON(!func)) {
3730                 spin_unlock_bh(&sdata->u.nan.func_lock);
3731                 return;
3732         }
3733         match->cookie = func->cookie;
3734
3735         spin_unlock_bh(&sdata->u.nan.func_lock);
3736
3737         cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3738 }
3739 EXPORT_SYMBOL(ieee80211_nan_func_match);
3740
3741 static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3742                                               struct net_device *dev,
3743                                               const bool enabled)
3744 {
3745         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3746
3747         sdata->u.ap.multicast_to_unicast = enabled;
3748
3749         return 0;
3750 }
3751
3752 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3753                               struct txq_info *txqi)
3754 {
3755         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3756                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3757                 txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3758         }
3759
3760         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3761                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3762                 txqstats->backlog_packets = txqi->tin.backlog_packets;
3763         }
3764
3765         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3766                 txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3767                 txqstats->flows = txqi->tin.flows;
3768         }
3769
3770         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3771                 txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3772                 txqstats->drops = txqi->cstats.drop_count;
3773         }
3774
3775         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3776                 txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3777                 txqstats->ecn_marks = txqi->cstats.ecn_mark;
3778         }
3779
3780         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3781                 txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3782                 txqstats->overlimit = txqi->tin.overlimit;
3783         }
3784
3785         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3786                 txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
3787                 txqstats->collisions = txqi->tin.collisions;
3788         }
3789
3790         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
3791                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
3792                 txqstats->tx_bytes = txqi->tin.tx_bytes;
3793         }
3794
3795         if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
3796                 txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
3797                 txqstats->tx_packets = txqi->tin.tx_packets;
3798         }
3799 }
3800
3801 static int ieee80211_get_txq_stats(struct wiphy *wiphy,
3802                                    struct wireless_dev *wdev,
3803                                    struct cfg80211_txq_stats *txqstats)
3804 {
3805         struct ieee80211_local *local = wiphy_priv(wiphy);
3806         struct ieee80211_sub_if_data *sdata;
3807         int ret = 0;
3808
3809         if (!local->ops->wake_tx_queue)
3810                 return 1;
3811
3812         spin_lock_bh(&local->fq.lock);
3813         rcu_read_lock();
3814
3815         if (wdev) {
3816                 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3817                 if (!sdata->vif.txq) {
3818                         ret = 1;
3819                         goto out;
3820                 }
3821                 ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
3822         } else {
3823                 /* phy stats */
3824                 txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
3825                                     BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
3826                                     BIT(NL80211_TXQ_STATS_OVERLIMIT) |
3827                                     BIT(NL80211_TXQ_STATS_OVERMEMORY) |
3828                                     BIT(NL80211_TXQ_STATS_COLLISIONS) |
3829                                     BIT(NL80211_TXQ_STATS_MAX_FLOWS);
3830                 txqstats->backlog_packets = local->fq.backlog;
3831                 txqstats->backlog_bytes = local->fq.memory_usage;
3832                 txqstats->overlimit = local->fq.overlimit;
3833                 txqstats->overmemory = local->fq.overmemory;
3834                 txqstats->collisions = local->fq.collisions;
3835                 txqstats->max_flows = local->fq.flows_cnt;
3836         }
3837
3838 out:
3839         rcu_read_unlock();
3840         spin_unlock_bh(&local->fq.lock);
3841
3842         return ret;
3843 }
3844
3845 static int
3846 ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
3847                                   struct net_device *dev,
3848                                   struct cfg80211_ftm_responder_stats *ftm_stats)
3849 {
3850         struct ieee80211_local *local = wiphy_priv(wiphy);
3851         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3852
3853         return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
3854 }
3855
3856 static int
3857 ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3858                      struct cfg80211_pmsr_request *request)
3859 {
3860         struct ieee80211_local *local = wiphy_priv(wiphy);
3861         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3862
3863         return drv_start_pmsr(local, sdata, request);
3864 }
3865
3866 static void
3867 ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
3868                      struct cfg80211_pmsr_request *request)
3869 {
3870         struct ieee80211_local *local = wiphy_priv(wiphy);
3871         struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
3872
3873         return drv_abort_pmsr(local, sdata, request);
3874 }
3875
3876 const struct cfg80211_ops mac80211_config_ops = {
3877         .add_virtual_intf = ieee80211_add_iface,
3878         .del_virtual_intf = ieee80211_del_iface,
3879         .change_virtual_intf = ieee80211_change_iface,
3880         .start_p2p_device = ieee80211_start_p2p_device,
3881         .stop_p2p_device = ieee80211_stop_p2p_device,
3882         .add_key = ieee80211_add_key,
3883         .del_key = ieee80211_del_key,
3884         .get_key = ieee80211_get_key,
3885         .set_default_key = ieee80211_config_default_key,
3886         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3887         .start_ap = ieee80211_start_ap,
3888         .change_beacon = ieee80211_change_beacon,
3889         .stop_ap = ieee80211_stop_ap,
3890         .add_station = ieee80211_add_station,
3891         .del_station = ieee80211_del_station,
3892         .change_station = ieee80211_change_station,
3893         .get_station = ieee80211_get_station,
3894         .dump_station = ieee80211_dump_station,
3895         .dump_survey = ieee80211_dump_survey,
3896 #ifdef CONFIG_MAC80211_MESH
3897         .add_mpath = ieee80211_add_mpath,
3898         .del_mpath = ieee80211_del_mpath,
3899         .change_mpath = ieee80211_change_mpath,
3900         .get_mpath = ieee80211_get_mpath,
3901         .dump_mpath = ieee80211_dump_mpath,
3902         .get_mpp = ieee80211_get_mpp,
3903         .dump_mpp = ieee80211_dump_mpp,
3904         .update_mesh_config = ieee80211_update_mesh_config,
3905         .get_mesh_config = ieee80211_get_mesh_config,
3906         .join_mesh = ieee80211_join_mesh,
3907         .leave_mesh = ieee80211_leave_mesh,
3908 #endif
3909         .join_ocb = ieee80211_join_ocb,
3910         .leave_ocb = ieee80211_leave_ocb,
3911         .change_bss = ieee80211_change_bss,
3912         .set_txq_params = ieee80211_set_txq_params,
3913         .set_monitor_channel = ieee80211_set_monitor_channel,
3914         .suspend = ieee80211_suspend,
3915         .resume = ieee80211_resume,
3916         .scan = ieee80211_scan,
3917         .abort_scan = ieee80211_abort_scan,
3918         .sched_scan_start = ieee80211_sched_scan_start,
3919         .sched_scan_stop = ieee80211_sched_scan_stop,
3920         .auth = ieee80211_auth,
3921         .assoc = ieee80211_assoc,
3922         .deauth = ieee80211_deauth,
3923         .disassoc = ieee80211_disassoc,
3924         .join_ibss = ieee80211_join_ibss,
3925         .leave_ibss = ieee80211_leave_ibss,
3926         .set_mcast_rate = ieee80211_set_mcast_rate,
3927         .set_wiphy_params = ieee80211_set_wiphy_params,
3928         .set_tx_power = ieee80211_set_tx_power,
3929         .get_tx_power = ieee80211_get_tx_power,
3930         .set_wds_peer = ieee80211_set_wds_peer,
3931         .rfkill_poll = ieee80211_rfkill_poll,
3932         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3933         CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3934         .set_power_mgmt = ieee80211_set_power_mgmt,
3935         .set_bitrate_mask = ieee80211_set_bitrate_mask,
3936         .remain_on_channel = ieee80211_remain_on_channel,
3937         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3938         .mgmt_tx = ieee80211_mgmt_tx,
3939         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3940         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3941         .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
3942         .mgmt_frame_register = ieee80211_mgmt_frame_register,
3943         .set_antenna = ieee80211_set_antenna,
3944         .get_antenna = ieee80211_get_antenna,
3945         .set_rekey_data = ieee80211_set_rekey_data,
3946         .tdls_oper = ieee80211_tdls_oper,
3947         .tdls_mgmt = ieee80211_tdls_mgmt,
3948         .tdls_channel_switch = ieee80211_tdls_channel_switch,
3949         .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3950         .probe_client = ieee80211_probe_client,
3951         .set_noack_map = ieee80211_set_noack_map,
3952 #ifdef CONFIG_PM
3953         .set_wakeup = ieee80211_set_wakeup,
3954 #endif
3955         .get_channel = ieee80211_cfg_get_channel,
3956         .start_radar_detection = ieee80211_start_radar_detection,
3957         .channel_switch = ieee80211_channel_switch,
3958         .set_qos_map = ieee80211_set_qos_map,
3959         .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3960         .add_tx_ts = ieee80211_add_tx_ts,
3961         .del_tx_ts = ieee80211_del_tx_ts,
3962         .start_nan = ieee80211_start_nan,
3963         .stop_nan = ieee80211_stop_nan,
3964         .nan_change_conf = ieee80211_nan_change_conf,
3965         .add_nan_func = ieee80211_add_nan_func,
3966         .del_nan_func = ieee80211_del_nan_func,
3967         .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
3968         .tx_control_port = ieee80211_tx_control_port,
3969         .get_txq_stats = ieee80211_get_txq_stats,
3970         .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
3971         .start_pmsr = ieee80211_start_pmsr,
3972         .abort_pmsr = ieee80211_abort_pmsr,
3973 };