linux/net/mac80211/cfg.c
<<
>>
Prefs
   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * mac80211 configuration hooks for cfg80211
   4 *
   5 * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   6 * Copyright 2013-2015  Intel Mobile Communications GmbH
   7 * Copyright (C) 2015-2017 Intel Deutschland GmbH
   8 * Copyright (C) 2018-2020 Intel Corporation
   9 */
  10
  11#include <linux/ieee80211.h>
  12#include <linux/nl80211.h>
  13#include <linux/rtnetlink.h>
  14#include <linux/slab.h>
  15#include <net/net_namespace.h>
  16#include <linux/rcupdate.h>
  17#include <linux/fips.h>
  18#include <linux/if_ether.h>
  19#include <net/cfg80211.h>
  20#include "ieee80211_i.h"
  21#include "driver-ops.h"
  22#include "rate.h"
  23#include "mesh.h"
  24#include "wme.h"
  25
  26static 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
  59static 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
 114static 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
 142static 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
 149static 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        struct ieee80211_local *local = sdata->local;
 156        struct sta_info *sta;
 157        int ret;
 158
 159        ret = ieee80211_if_change_type(sdata, type);
 160        if (ret)
 161                return ret;
 162
 163        if (type == NL80211_IFTYPE_AP_VLAN && params->use_4addr == 0) {
 164                RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
 165                ieee80211_check_fast_rx_iface(sdata);
 166        } else if (type == NL80211_IFTYPE_STATION && params->use_4addr >= 0) {
 167                struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 168
 169                if (params->use_4addr == ifmgd->use_4addr)
 170                        return 0;
 171
 172                sdata->u.mgd.use_4addr = params->use_4addr;
 173                if (!ifmgd->associated)
 174                        return 0;
 175
 176                mutex_lock(&local->sta_mtx);
 177                sta = sta_info_get(sdata, ifmgd->bssid);
 178                if (sta)
 179                        drv_sta_set_4addr(local, sdata, &sta->sta,
 180                                          params->use_4addr);
 181                mutex_unlock(&local->sta_mtx);
 182
 183                if (params->use_4addr)
 184                        ieee80211_send_4addr_nullfunc(local, sdata);
 185        }
 186
 187        if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
 188                ret = ieee80211_set_mon_options(sdata, params);
 189                if (ret)
 190                        return ret;
 191        }
 192
 193        return 0;
 194}
 195
 196static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 197                                      struct wireless_dev *wdev)
 198{
 199        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 200        int ret;
 201
 202        mutex_lock(&sdata->local->chanctx_mtx);
 203        ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 204        mutex_unlock(&sdata->local->chanctx_mtx);
 205        if (ret < 0)
 206                return ret;
 207
 208        return ieee80211_do_open(wdev, true);
 209}
 210
 211static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 212                                      struct wireless_dev *wdev)
 213{
 214        ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 215}
 216
 217static int ieee80211_start_nan(struct wiphy *wiphy,
 218                               struct wireless_dev *wdev,
 219                               struct cfg80211_nan_conf *conf)
 220{
 221        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 222        int ret;
 223
 224        mutex_lock(&sdata->local->chanctx_mtx);
 225        ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
 226        mutex_unlock(&sdata->local->chanctx_mtx);
 227        if (ret < 0)
 228                return ret;
 229
 230        ret = ieee80211_do_open(wdev, true);
 231        if (ret)
 232                return ret;
 233
 234        ret = drv_start_nan(sdata->local, sdata, conf);
 235        if (ret)
 236                ieee80211_sdata_stop(sdata);
 237
 238        sdata->u.nan.conf = *conf;
 239
 240        return ret;
 241}
 242
 243static void ieee80211_stop_nan(struct wiphy *wiphy,
 244                               struct wireless_dev *wdev)
 245{
 246        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 247
 248        drv_stop_nan(sdata->local, sdata);
 249        ieee80211_sdata_stop(sdata);
 250}
 251
 252static int ieee80211_nan_change_conf(struct wiphy *wiphy,
 253                                     struct wireless_dev *wdev,
 254                                     struct cfg80211_nan_conf *conf,
 255                                     u32 changes)
 256{
 257        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 258        struct cfg80211_nan_conf new_conf;
 259        int ret = 0;
 260
 261        if (sdata->vif.type != NL80211_IFTYPE_NAN)
 262                return -EOPNOTSUPP;
 263
 264        if (!ieee80211_sdata_running(sdata))
 265                return -ENETDOWN;
 266
 267        new_conf = sdata->u.nan.conf;
 268
 269        if (changes & CFG80211_NAN_CONF_CHANGED_PREF)
 270                new_conf.master_pref = conf->master_pref;
 271
 272        if (changes & CFG80211_NAN_CONF_CHANGED_BANDS)
 273                new_conf.bands = conf->bands;
 274
 275        ret = drv_nan_change_conf(sdata->local, sdata, &new_conf, changes);
 276        if (!ret)
 277                sdata->u.nan.conf = new_conf;
 278
 279        return ret;
 280}
 281
 282static int ieee80211_add_nan_func(struct wiphy *wiphy,
 283                                  struct wireless_dev *wdev,
 284                                  struct cfg80211_nan_func *nan_func)
 285{
 286        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 287        int ret;
 288
 289        if (sdata->vif.type != NL80211_IFTYPE_NAN)
 290                return -EOPNOTSUPP;
 291
 292        if (!ieee80211_sdata_running(sdata))
 293                return -ENETDOWN;
 294
 295        spin_lock_bh(&sdata->u.nan.func_lock);
 296
 297        ret = idr_alloc(&sdata->u.nan.function_inst_ids,
 298                        nan_func, 1, sdata->local->hw.max_nan_de_entries + 1,
 299                        GFP_ATOMIC);
 300        spin_unlock_bh(&sdata->u.nan.func_lock);
 301
 302        if (ret < 0)
 303                return ret;
 304
 305        nan_func->instance_id = ret;
 306
 307        WARN_ON(nan_func->instance_id == 0);
 308
 309        ret = drv_add_nan_func(sdata->local, sdata, nan_func);
 310        if (ret) {
 311                spin_lock_bh(&sdata->u.nan.func_lock);
 312                idr_remove(&sdata->u.nan.function_inst_ids,
 313                           nan_func->instance_id);
 314                spin_unlock_bh(&sdata->u.nan.func_lock);
 315        }
 316
 317        return ret;
 318}
 319
 320static struct cfg80211_nan_func *
 321ieee80211_find_nan_func_by_cookie(struct ieee80211_sub_if_data *sdata,
 322                                  u64 cookie)
 323{
 324        struct cfg80211_nan_func *func;
 325        int id;
 326
 327        lockdep_assert_held(&sdata->u.nan.func_lock);
 328
 329        idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) {
 330                if (func->cookie == cookie)
 331                        return func;
 332        }
 333
 334        return NULL;
 335}
 336
 337static void ieee80211_del_nan_func(struct wiphy *wiphy,
 338                                  struct wireless_dev *wdev, u64 cookie)
 339{
 340        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
 341        struct cfg80211_nan_func *func;
 342        u8 instance_id = 0;
 343
 344        if (sdata->vif.type != NL80211_IFTYPE_NAN ||
 345            !ieee80211_sdata_running(sdata))
 346                return;
 347
 348        spin_lock_bh(&sdata->u.nan.func_lock);
 349
 350        func = ieee80211_find_nan_func_by_cookie(sdata, cookie);
 351        if (func)
 352                instance_id = func->instance_id;
 353
 354        spin_unlock_bh(&sdata->u.nan.func_lock);
 355
 356        if (instance_id)
 357                drv_del_nan_func(sdata->local, sdata, instance_id);
 358}
 359
 360static int ieee80211_set_noack_map(struct wiphy *wiphy,
 361                                  struct net_device *dev,
 362                                  u16 noack_map)
 363{
 364        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 365
 366        sdata->noack_map = noack_map;
 367
 368        ieee80211_check_fast_xmit_iface(sdata);
 369
 370        return 0;
 371}
 372
 373static int ieee80211_set_tx(struct ieee80211_sub_if_data *sdata,
 374                            const u8 *mac_addr, u8 key_idx)
 375{
 376        struct ieee80211_local *local = sdata->local;
 377        struct ieee80211_key *key;
 378        struct sta_info *sta;
 379        int ret = -EINVAL;
 380
 381        if (!wiphy_ext_feature_isset(local->hw.wiphy,
 382                                     NL80211_EXT_FEATURE_EXT_KEY_ID))
 383                return -EINVAL;
 384
 385        sta = sta_info_get_bss(sdata, mac_addr);
 386
 387        if (!sta)
 388                return -EINVAL;
 389
 390        if (sta->ptk_idx == key_idx)
 391                return 0;
 392
 393        mutex_lock(&local->key_mtx);
 394        key = key_mtx_dereference(local, sta->ptk[key_idx]);
 395
 396        if (key && key->conf.flags & IEEE80211_KEY_FLAG_NO_AUTO_TX)
 397                ret = ieee80211_set_tx_key(key);
 398
 399        mutex_unlock(&local->key_mtx);
 400        return ret;
 401}
 402
 403static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 404                             u8 key_idx, bool pairwise, const u8 *mac_addr,
 405                             struct key_params *params)
 406{
 407        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 408        struct ieee80211_local *local = sdata->local;
 409        struct sta_info *sta = NULL;
 410        const struct ieee80211_cipher_scheme *cs = NULL;
 411        struct ieee80211_key *key;
 412        int err;
 413
 414        if (!ieee80211_sdata_running(sdata))
 415                return -ENETDOWN;
 416
 417        if (pairwise && params->mode == NL80211_KEY_SET_TX)
 418                return ieee80211_set_tx(sdata, mac_addr, key_idx);
 419
 420        /* reject WEP and TKIP keys if WEP failed to initialize */
 421        switch (params->cipher) {
 422        case WLAN_CIPHER_SUITE_WEP40:
 423        case WLAN_CIPHER_SUITE_TKIP:
 424        case WLAN_CIPHER_SUITE_WEP104:
 425                if (WARN_ON_ONCE(fips_enabled))
 426                        return -EINVAL;
 427                break;
 428        case WLAN_CIPHER_SUITE_CCMP:
 429        case WLAN_CIPHER_SUITE_CCMP_256:
 430        case WLAN_CIPHER_SUITE_AES_CMAC:
 431        case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 432        case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 433        case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 434        case WLAN_CIPHER_SUITE_GCMP:
 435        case WLAN_CIPHER_SUITE_GCMP_256:
 436                break;
 437        default:
 438                cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
 439                break;
 440        }
 441
 442        key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 443                                  params->key, params->seq_len, params->seq,
 444                                  cs);
 445        if (IS_ERR(key))
 446                return PTR_ERR(key);
 447
 448        if (pairwise)
 449                key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 450
 451        if (params->mode == NL80211_KEY_NO_TX)
 452                key->conf.flags |= IEEE80211_KEY_FLAG_NO_AUTO_TX;
 453
 454        mutex_lock(&local->sta_mtx);
 455
 456        if (mac_addr) {
 457                sta = sta_info_get_bss(sdata, mac_addr);
 458                /*
 459                 * The ASSOC test makes sure the driver is ready to
 460                 * receive the key. When wpa_supplicant has roamed
 461                 * using FT, it attempts to set the key before
 462                 * association has completed, this rejects that attempt
 463                 * so it will set the key again after association.
 464                 *
 465                 * TODO: accept the key if we have a station entry and
 466                 *       add it to the device after the station.
 467                 */
 468                if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
 469                        ieee80211_key_free_unused(key);
 470                        err = -ENOENT;
 471                        goto out_unlock;
 472                }
 473        }
 474
 475        switch (sdata->vif.type) {
 476        case NL80211_IFTYPE_STATION:
 477                if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 478                        key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 479                break;
 480        case NL80211_IFTYPE_AP:
 481        case NL80211_IFTYPE_AP_VLAN:
 482                /* Keys without a station are used for TX only */
 483                if (sta && test_sta_flag(sta, WLAN_STA_MFP))
 484                        key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 485                break;
 486        case NL80211_IFTYPE_ADHOC:
 487                /* no MFP (yet) */
 488                break;
 489        case NL80211_IFTYPE_MESH_POINT:
 490#ifdef CONFIG_MAC80211_MESH
 491                if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 492                        key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 493                break;
 494#endif
 495        case NL80211_IFTYPE_WDS:
 496        case NL80211_IFTYPE_MONITOR:
 497        case NL80211_IFTYPE_P2P_DEVICE:
 498        case NL80211_IFTYPE_NAN:
 499        case NL80211_IFTYPE_UNSPECIFIED:
 500        case NUM_NL80211_IFTYPES:
 501        case NL80211_IFTYPE_P2P_CLIENT:
 502        case NL80211_IFTYPE_P2P_GO:
 503        case NL80211_IFTYPE_OCB:
 504                /* shouldn't happen */
 505                WARN_ON_ONCE(1);
 506                break;
 507        }
 508
 509        if (sta)
 510                sta->cipher_scheme = cs;
 511
 512        err = ieee80211_key_link(key, sdata, sta);
 513
 514 out_unlock:
 515        mutex_unlock(&local->sta_mtx);
 516
 517        return err;
 518}
 519
 520static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 521                             u8 key_idx, bool pairwise, const u8 *mac_addr)
 522{
 523        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 524        struct ieee80211_local *local = sdata->local;
 525        struct sta_info *sta;
 526        struct ieee80211_key *key = NULL;
 527        int ret;
 528
 529        mutex_lock(&local->sta_mtx);
 530        mutex_lock(&local->key_mtx);
 531
 532        if (mac_addr) {
 533                ret = -ENOENT;
 534
 535                sta = sta_info_get_bss(sdata, mac_addr);
 536                if (!sta)
 537                        goto out_unlock;
 538
 539                if (pairwise)
 540                        key = key_mtx_dereference(local, sta->ptk[key_idx]);
 541                else
 542                        key = key_mtx_dereference(local, sta->gtk[key_idx]);
 543        } else
 544                key = key_mtx_dereference(local, sdata->keys[key_idx]);
 545
 546        if (!key) {
 547                ret = -ENOENT;
 548                goto out_unlock;
 549        }
 550
 551        ieee80211_key_free(key, sdata->vif.type == NL80211_IFTYPE_STATION);
 552
 553        ret = 0;
 554 out_unlock:
 555        mutex_unlock(&local->key_mtx);
 556        mutex_unlock(&local->sta_mtx);
 557
 558        return ret;
 559}
 560
 561static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 562                             u8 key_idx, bool pairwise, const u8 *mac_addr,
 563                             void *cookie,
 564                             void (*callback)(void *cookie,
 565                                              struct key_params *params))
 566{
 567        struct ieee80211_sub_if_data *sdata;
 568        struct sta_info *sta = NULL;
 569        u8 seq[6] = {0};
 570        struct key_params params;
 571        struct ieee80211_key *key = NULL;
 572        u64 pn64;
 573        u32 iv32;
 574        u16 iv16;
 575        int err = -ENOENT;
 576        struct ieee80211_key_seq kseq = {};
 577
 578        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 579
 580        rcu_read_lock();
 581
 582        if (mac_addr) {
 583                sta = sta_info_get_bss(sdata, mac_addr);
 584                if (!sta)
 585                        goto out;
 586
 587                if (pairwise && key_idx < NUM_DEFAULT_KEYS)
 588                        key = rcu_dereference(sta->ptk[key_idx]);
 589                else if (!pairwise &&
 590                         key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS +
 591                         NUM_DEFAULT_BEACON_KEYS)
 592                        key = rcu_dereference(sta->gtk[key_idx]);
 593        } else
 594                key = rcu_dereference(sdata->keys[key_idx]);
 595
 596        if (!key)
 597                goto out;
 598
 599        memset(&params, 0, sizeof(params));
 600
 601        params.cipher = key->conf.cipher;
 602
 603        switch (key->conf.cipher) {
 604        case WLAN_CIPHER_SUITE_TKIP:
 605                pn64 = atomic64_read(&key->conf.tx_pn);
 606                iv32 = TKIP_PN_TO_IV32(pn64);
 607                iv16 = TKIP_PN_TO_IV16(pn64);
 608
 609                if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 610                    !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 611                        drv_get_key_seq(sdata->local, key, &kseq);
 612                        iv32 = kseq.tkip.iv32;
 613                        iv16 = kseq.tkip.iv16;
 614                }
 615
 616                seq[0] = iv16 & 0xff;
 617                seq[1] = (iv16 >> 8) & 0xff;
 618                seq[2] = iv32 & 0xff;
 619                seq[3] = (iv32 >> 8) & 0xff;
 620                seq[4] = (iv32 >> 16) & 0xff;
 621                seq[5] = (iv32 >> 24) & 0xff;
 622                params.seq = seq;
 623                params.seq_len = 6;
 624                break;
 625        case WLAN_CIPHER_SUITE_CCMP:
 626        case WLAN_CIPHER_SUITE_CCMP_256:
 627        case WLAN_CIPHER_SUITE_AES_CMAC:
 628        case WLAN_CIPHER_SUITE_BIP_CMAC_256:
 629                BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 630                             offsetof(typeof(kseq), aes_cmac));
 631                fallthrough;
 632        case WLAN_CIPHER_SUITE_BIP_GMAC_128:
 633        case WLAN_CIPHER_SUITE_BIP_GMAC_256:
 634                BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 635                             offsetof(typeof(kseq), aes_gmac));
 636                fallthrough;
 637        case WLAN_CIPHER_SUITE_GCMP:
 638        case WLAN_CIPHER_SUITE_GCMP_256:
 639                BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
 640                             offsetof(typeof(kseq), gcmp));
 641
 642                if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
 643                    !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
 644                        drv_get_key_seq(sdata->local, key, &kseq);
 645                        memcpy(seq, kseq.ccmp.pn, 6);
 646                } else {
 647                        pn64 = atomic64_read(&key->conf.tx_pn);
 648                        seq[0] = pn64;
 649                        seq[1] = pn64 >> 8;
 650                        seq[2] = pn64 >> 16;
 651                        seq[3] = pn64 >> 24;
 652                        seq[4] = pn64 >> 32;
 653                        seq[5] = pn64 >> 40;
 654                }
 655                params.seq = seq;
 656                params.seq_len = 6;
 657                break;
 658        default:
 659                if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
 660                        break;
 661                if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
 662                        break;
 663                drv_get_key_seq(sdata->local, key, &kseq);
 664                params.seq = kseq.hw.seq;
 665                params.seq_len = kseq.hw.seq_len;
 666                break;
 667        }
 668
 669        params.key = key->conf.key;
 670        params.key_len = key->conf.keylen;
 671
 672        callback(cookie, &params);
 673        err = 0;
 674
 675 out:
 676        rcu_read_unlock();
 677        return err;
 678}
 679
 680static int ieee80211_config_default_key(struct wiphy *wiphy,
 681                                        struct net_device *dev,
 682                                        u8 key_idx, bool uni,
 683                                        bool multi)
 684{
 685        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 686
 687        ieee80211_set_default_key(sdata, key_idx, uni, multi);
 688
 689        return 0;
 690}
 691
 692static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 693                                             struct net_device *dev,
 694                                             u8 key_idx)
 695{
 696        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 697
 698        ieee80211_set_default_mgmt_key(sdata, key_idx);
 699
 700        return 0;
 701}
 702
 703static int ieee80211_config_default_beacon_key(struct wiphy *wiphy,
 704                                               struct net_device *dev,
 705                                               u8 key_idx)
 706{
 707        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 708
 709        ieee80211_set_default_beacon_key(sdata, key_idx);
 710
 711        return 0;
 712}
 713
 714void sta_set_rate_info_tx(struct sta_info *sta,
 715                          const struct ieee80211_tx_rate *rate,
 716                          struct rate_info *rinfo)
 717{
 718        rinfo->flags = 0;
 719        if (rate->flags & IEEE80211_TX_RC_MCS) {
 720                rinfo->flags |= RATE_INFO_FLAGS_MCS;
 721                rinfo->mcs = rate->idx;
 722        } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
 723                rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
 724                rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
 725                rinfo->nss = ieee80211_rate_get_vht_nss(rate);
 726        } else {
 727                struct ieee80211_supported_band *sband;
 728                int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
 729                u16 brate;
 730
 731                sband = ieee80211_get_sband(sta->sdata);
 732                WARN_ON_ONCE(sband && !sband->bitrates);
 733                if (sband && sband->bitrates) {
 734                        brate = sband->bitrates[rate->idx].bitrate;
 735                        rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
 736                }
 737        }
 738        if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 739                rinfo->bw = RATE_INFO_BW_40;
 740        else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
 741                rinfo->bw = RATE_INFO_BW_80;
 742        else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
 743                rinfo->bw = RATE_INFO_BW_160;
 744        else
 745                rinfo->bw = RATE_INFO_BW_20;
 746        if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 747                rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 748}
 749
 750static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 751                                  int idx, u8 *mac, struct station_info *sinfo)
 752{
 753        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 754        struct ieee80211_local *local = sdata->local;
 755        struct sta_info *sta;
 756        int ret = -ENOENT;
 757
 758        mutex_lock(&local->sta_mtx);
 759
 760        sta = sta_info_get_by_idx(sdata, idx);
 761        if (sta) {
 762                ret = 0;
 763                memcpy(mac, sta->sta.addr, ETH_ALEN);
 764                sta_set_sinfo(sta, sinfo, true);
 765        }
 766
 767        mutex_unlock(&local->sta_mtx);
 768
 769        return ret;
 770}
 771
 772static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 773                                 int idx, struct survey_info *survey)
 774{
 775        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 776
 777        return drv_get_survey(local, idx, survey);
 778}
 779
 780static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 781                                 const u8 *mac, struct station_info *sinfo)
 782{
 783        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 784        struct ieee80211_local *local = sdata->local;
 785        struct sta_info *sta;
 786        int ret = -ENOENT;
 787
 788        mutex_lock(&local->sta_mtx);
 789
 790        sta = sta_info_get_bss(sdata, mac);
 791        if (sta) {
 792                ret = 0;
 793                sta_set_sinfo(sta, sinfo, true);
 794        }
 795
 796        mutex_unlock(&local->sta_mtx);
 797
 798        return ret;
 799}
 800
 801static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 802                                         struct cfg80211_chan_def *chandef)
 803{
 804        struct ieee80211_local *local = wiphy_priv(wiphy);
 805        struct ieee80211_sub_if_data *sdata;
 806        int ret = 0;
 807
 808        if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
 809                return 0;
 810
 811        mutex_lock(&local->mtx);
 812        if (local->use_chanctx) {
 813                sdata = rtnl_dereference(local->monitor_sdata);
 814                if (sdata) {
 815                        ieee80211_vif_release_channel(sdata);
 816                        ret = ieee80211_vif_use_channel(sdata, chandef,
 817                                        IEEE80211_CHANCTX_EXCLUSIVE);
 818                }
 819        } else if (local->open_count == local->monitors) {
 820                local->_oper_chandef = *chandef;
 821                ieee80211_hw_config(local, 0);
 822        }
 823
 824        if (ret == 0)
 825                local->monitor_chandef = *chandef;
 826        mutex_unlock(&local->mtx);
 827
 828        return ret;
 829}
 830
 831static int
 832ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 833                         const u8 *resp, size_t resp_len,
 834                         const struct ieee80211_csa_settings *csa,
 835                         const struct ieee80211_color_change_settings *cca)
 836{
 837        struct probe_resp *new, *old;
 838
 839        if (!resp || !resp_len)
 840                return 1;
 841
 842        old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
 843
 844        new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 845        if (!new)
 846                return -ENOMEM;
 847
 848        new->len = resp_len;
 849        memcpy(new->data, resp, resp_len);
 850
 851        if (csa)
 852                memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
 853                       csa->n_counter_offsets_presp *
 854                       sizeof(new->cntdwn_counter_offsets[0]));
 855        else if (cca)
 856                new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
 857
 858        rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 859        if (old)
 860                kfree_rcu(old, rcu_head);
 861
 862        return 0;
 863}
 864
 865static int ieee80211_set_fils_discovery(struct ieee80211_sub_if_data *sdata,
 866                                        struct cfg80211_fils_discovery *params)
 867{
 868        struct fils_discovery_data *new, *old = NULL;
 869        struct ieee80211_fils_discovery *fd;
 870
 871        if (!params->tmpl || !params->tmpl_len)
 872                return -EINVAL;
 873
 874        fd = &sdata->vif.bss_conf.fils_discovery;
 875        fd->min_interval = params->min_interval;
 876        fd->max_interval = params->max_interval;
 877
 878        old = sdata_dereference(sdata->u.ap.fils_discovery, sdata);
 879        new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 880        if (!new)
 881                return -ENOMEM;
 882        new->len = params->tmpl_len;
 883        memcpy(new->data, params->tmpl, params->tmpl_len);
 884        rcu_assign_pointer(sdata->u.ap.fils_discovery, new);
 885
 886        if (old)
 887                kfree_rcu(old, rcu_head);
 888
 889        return 0;
 890}
 891
 892static int
 893ieee80211_set_unsol_bcast_probe_resp(struct ieee80211_sub_if_data *sdata,
 894                                     struct cfg80211_unsol_bcast_probe_resp *params)
 895{
 896        struct unsol_bcast_probe_resp_data *new, *old = NULL;
 897
 898        if (!params->tmpl || !params->tmpl_len)
 899                return -EINVAL;
 900
 901        old = sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp, sdata);
 902        new = kzalloc(sizeof(*new) + params->tmpl_len, GFP_KERNEL);
 903        if (!new)
 904                return -ENOMEM;
 905        new->len = params->tmpl_len;
 906        memcpy(new->data, params->tmpl, params->tmpl_len);
 907        rcu_assign_pointer(sdata->u.ap.unsol_bcast_probe_resp, new);
 908
 909        if (old)
 910                kfree_rcu(old, rcu_head);
 911
 912        sdata->vif.bss_conf.unsol_bcast_probe_resp_interval =
 913                                                        params->interval;
 914
 915        return 0;
 916}
 917
 918static int ieee80211_set_ftm_responder_params(
 919                                struct ieee80211_sub_if_data *sdata,
 920                                const u8 *lci, size_t lci_len,
 921                                const u8 *civicloc, size_t civicloc_len)
 922{
 923        struct ieee80211_ftm_responder_params *new, *old;
 924        struct ieee80211_bss_conf *bss_conf;
 925        u8 *pos;
 926        int len;
 927
 928        if (!lci_len && !civicloc_len)
 929                return 0;
 930
 931        bss_conf = &sdata->vif.bss_conf;
 932        old = bss_conf->ftmr_params;
 933        len = lci_len + civicloc_len;
 934
 935        new = kzalloc(sizeof(*new) + len, GFP_KERNEL);
 936        if (!new)
 937                return -ENOMEM;
 938
 939        pos = (u8 *)(new + 1);
 940        if (lci_len) {
 941                new->lci_len = lci_len;
 942                new->lci = pos;
 943                memcpy(pos, lci, lci_len);
 944                pos += lci_len;
 945        }
 946
 947        if (civicloc_len) {
 948                new->civicloc_len = civicloc_len;
 949                new->civicloc = pos;
 950                memcpy(pos, civicloc, civicloc_len);
 951                pos += civicloc_len;
 952        }
 953
 954        bss_conf->ftmr_params = new;
 955        kfree(old);
 956
 957        return 0;
 958}
 959
 960static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 961                                   struct cfg80211_beacon_data *params,
 962                                   const struct ieee80211_csa_settings *csa,
 963                                   const struct ieee80211_color_change_settings *cca)
 964{
 965        struct beacon_data *new, *old;
 966        int new_head_len, new_tail_len;
 967        int size, err;
 968        u32 changed = BSS_CHANGED_BEACON;
 969
 970        old = sdata_dereference(sdata->u.ap.beacon, sdata);
 971
 972
 973        /* Need to have a beacon head if we don't have one yet */
 974        if (!params->head && !old)
 975                return -EINVAL;
 976
 977        /* new or old head? */
 978        if (params->head)
 979                new_head_len = params->head_len;
 980        else
 981                new_head_len = old->head_len;
 982
 983        /* new or old tail? */
 984        if (params->tail || !old)
 985                /* params->tail_len will be zero for !params->tail */
 986                new_tail_len = params->tail_len;
 987        else
 988                new_tail_len = old->tail_len;
 989
 990        size = sizeof(*new) + new_head_len + new_tail_len;
 991
 992        new = kzalloc(size, GFP_KERNEL);
 993        if (!new)
 994                return -ENOMEM;
 995
 996        /* start filling the new info now */
 997
 998        /*
 999         * pointers go into the block we allocated,
1000         * memory is | beacon_data | head | tail |
1001         */
1002        new->head = ((u8 *) new) + sizeof(*new);
1003        new->tail = new->head + new_head_len;
1004        new->head_len = new_head_len;
1005        new->tail_len = new_tail_len;
1006
1007        if (csa) {
1008                new->cntdwn_current_counter = csa->count;
1009                memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
1010                       csa->n_counter_offsets_beacon *
1011                       sizeof(new->cntdwn_counter_offsets[0]));
1012        } else if (cca) {
1013                new->cntdwn_current_counter = cca->count;
1014                new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
1015        }
1016
1017        /* copy in head */
1018        if (params->head)
1019                memcpy(new->head, params->head, new_head_len);
1020        else
1021                memcpy(new->head, old->head, new_head_len);
1022
1023        /* copy in optional tail */
1024        if (params->tail)
1025                memcpy(new->tail, params->tail, new_tail_len);
1026        else
1027                if (old)
1028                        memcpy(new->tail, old->tail, new_tail_len);
1029
1030        err = ieee80211_set_probe_resp(sdata, params->probe_resp,
1031                                       params->probe_resp_len, csa, cca);
1032        if (err < 0) {
1033                kfree(new);
1034                return err;
1035        }
1036        if (err == 0)
1037                changed |= BSS_CHANGED_AP_PROBE_RESP;
1038
1039        if (params->ftm_responder != -1) {
1040                sdata->vif.bss_conf.ftm_responder = params->ftm_responder;
1041                err = ieee80211_set_ftm_responder_params(sdata,
1042                                                         params->lci,
1043                                                         params->lci_len,
1044                                                         params->civicloc,
1045                                                         params->civicloc_len);
1046
1047                if (err < 0) {
1048                        kfree(new);
1049                        return err;
1050                }
1051
1052                changed |= BSS_CHANGED_FTM_RESPONDER;
1053        }
1054
1055        rcu_assign_pointer(sdata->u.ap.beacon, new);
1056
1057        if (old)
1058                kfree_rcu(old, rcu_head);
1059
1060        return changed;
1061}
1062
1063static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
1064                              struct cfg80211_ap_settings *params)
1065{
1066        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1067        struct ieee80211_local *local = sdata->local;
1068        struct beacon_data *old;
1069        struct ieee80211_sub_if_data *vlan;
1070        u32 changed = BSS_CHANGED_BEACON_INT |
1071                      BSS_CHANGED_BEACON_ENABLED |
1072                      BSS_CHANGED_BEACON |
1073                      BSS_CHANGED_SSID |
1074                      BSS_CHANGED_P2P_PS |
1075                      BSS_CHANGED_TXPOWER |
1076                      BSS_CHANGED_TWT;
1077        int i, err;
1078        int prev_beacon_int;
1079
1080        old = sdata_dereference(sdata->u.ap.beacon, sdata);
1081        if (old)
1082                return -EALREADY;
1083
1084        if (params->smps_mode != NL80211_SMPS_OFF)
1085                return -ENOTSUPP;
1086
1087        sdata->smps_mode = IEEE80211_SMPS_OFF;
1088
1089        sdata->needed_rx_chains = sdata->local->rx_chains;
1090
1091        prev_beacon_int = sdata->vif.bss_conf.beacon_int;
1092        sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1093
1094        if (params->he_cap && params->he_oper) {
1095                sdata->vif.bss_conf.he_support = true;
1096                sdata->vif.bss_conf.htc_trig_based_pkt_ext =
1097                        le32_get_bits(params->he_oper->he_oper_params,
1098                              IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK);
1099                sdata->vif.bss_conf.frame_time_rts_th =
1100                        le32_get_bits(params->he_oper->he_oper_params,
1101                              IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
1102                changed |= BSS_CHANGED_HE_OBSS_PD;
1103
1104                if (params->he_bss_color.enabled)
1105                        changed |= BSS_CHANGED_HE_BSS_COLOR;
1106        }
1107
1108        mutex_lock(&local->mtx);
1109        err = ieee80211_vif_use_channel(sdata, &params->chandef,
1110                                        IEEE80211_CHANCTX_SHARED);
1111        if (!err)
1112                ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
1113        mutex_unlock(&local->mtx);
1114        if (err) {
1115                sdata->vif.bss_conf.beacon_int = prev_beacon_int;
1116                return err;
1117        }
1118
1119        /*
1120         * Apply control port protocol, this allows us to
1121         * not encrypt dynamic WEP control frames.
1122         */
1123        sdata->control_port_protocol = params->crypto.control_port_ethertype;
1124        sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
1125        sdata->control_port_over_nl80211 =
1126                                params->crypto.control_port_over_nl80211;
1127        sdata->control_port_no_preauth =
1128                                params->crypto.control_port_no_preauth;
1129        sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
1130                                                        &params->crypto,
1131                                                        sdata->vif.type);
1132
1133        list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1134                vlan->control_port_protocol =
1135                        params->crypto.control_port_ethertype;
1136                vlan->control_port_no_encrypt =
1137                        params->crypto.control_port_no_encrypt;
1138                vlan->control_port_over_nl80211 =
1139                        params->crypto.control_port_over_nl80211;
1140                vlan->control_port_no_preauth =
1141                        params->crypto.control_port_no_preauth;
1142                vlan->encrypt_headroom =
1143                        ieee80211_cs_headroom(sdata->local,
1144                                              &params->crypto,
1145                                              vlan->vif.type);
1146        }
1147
1148        sdata->vif.bss_conf.dtim_period = params->dtim_period;
1149        sdata->vif.bss_conf.enable_beacon = true;
1150        sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
1151        sdata->vif.bss_conf.twt_responder = params->twt_responder;
1152        sdata->vif.bss_conf.he_obss_pd = params->he_obss_pd;
1153        sdata->vif.bss_conf.he_bss_color = params->he_bss_color;
1154        sdata->vif.bss_conf.s1g = params->chandef.chan->band ==
1155                                  NL80211_BAND_S1GHZ;
1156
1157        sdata->vif.bss_conf.ssid_len = params->ssid_len;
1158        if (params->ssid_len)
1159                memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1160                       params->ssid_len);
1161        sdata->vif.bss_conf.hidden_ssid =
1162                (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1163
1164        memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1165               sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1166        sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1167                params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1168        if (params->p2p_opp_ps)
1169                sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1170                                        IEEE80211_P2P_OPPPS_ENABLE_BIT;
1171
1172        sdata->beacon_rate_set = false;
1173        if (wiphy_ext_feature_isset(local->hw.wiphy,
1174                                    NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
1175                for (i = 0; i < NUM_NL80211_BANDS; i++) {
1176                        sdata->beacon_rateidx_mask[i] =
1177                                params->beacon_rate.control[i].legacy;
1178                        if (sdata->beacon_rateidx_mask[i])
1179                                sdata->beacon_rate_set = true;
1180                }
1181        }
1182
1183        if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
1184                sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate;
1185
1186        err = ieee80211_assign_beacon(sdata, &params->beacon, NULL, NULL);
1187        if (err < 0)
1188                goto error;
1189        changed |= err;
1190
1191        if (params->fils_discovery.max_interval) {
1192                err = ieee80211_set_fils_discovery(sdata,
1193                                                   &params->fils_discovery);
1194                if (err < 0)
1195                        goto error;
1196                changed |= BSS_CHANGED_FILS_DISCOVERY;
1197        }
1198
1199        if (params->unsol_bcast_probe_resp.interval) {
1200                err = ieee80211_set_unsol_bcast_probe_resp(sdata,
1201                                                           &params->unsol_bcast_probe_resp);
1202                if (err < 0)
1203                        goto error;
1204                changed |= BSS_CHANGED_UNSOL_BCAST_PROBE_RESP;
1205        }
1206
1207        err = drv_start_ap(sdata->local, sdata);
1208        if (err) {
1209                old = sdata_dereference(sdata->u.ap.beacon, sdata);
1210
1211                if (old)
1212                        kfree_rcu(old, rcu_head);
1213                RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1214                goto error;
1215        }
1216
1217        ieee80211_recalc_dtim(local, sdata);
1218        ieee80211_bss_info_change_notify(sdata, changed);
1219
1220        netif_carrier_on(dev);
1221        list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1222                netif_carrier_on(vlan->dev);
1223
1224        return 0;
1225
1226error:
1227        ieee80211_vif_release_channel(sdata);
1228        return err;
1229}
1230
1231static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1232                                   struct cfg80211_beacon_data *params)
1233{
1234        struct ieee80211_sub_if_data *sdata;
1235        struct beacon_data *old;
1236        int err;
1237
1238        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1239        sdata_assert_lock(sdata);
1240
1241        /* don't allow changing the beacon while a countdown is in place - offset
1242         * of channel switch counter may change
1243         */
1244        if (sdata->vif.csa_active || sdata->vif.color_change_active)
1245                return -EBUSY;
1246
1247        old = sdata_dereference(sdata->u.ap.beacon, sdata);
1248        if (!old)
1249                return -ENOENT;
1250
1251        err = ieee80211_assign_beacon(sdata, params, NULL, NULL);
1252        if (err < 0)
1253                return err;
1254        ieee80211_bss_info_change_notify(sdata, err);
1255        return 0;
1256}
1257
1258static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1259{
1260        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1261        struct ieee80211_sub_if_data *vlan;
1262        struct ieee80211_local *local = sdata->local;
1263        struct beacon_data *old_beacon;
1264        struct probe_resp *old_probe_resp;
1265        struct fils_discovery_data *old_fils_discovery;
1266        struct unsol_bcast_probe_resp_data *old_unsol_bcast_probe_resp;
1267        struct cfg80211_chan_def chandef;
1268
1269        sdata_assert_lock(sdata);
1270
1271        old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1272        if (!old_beacon)
1273                return -ENOENT;
1274        old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1275        old_fils_discovery = sdata_dereference(sdata->u.ap.fils_discovery,
1276                                               sdata);
1277        old_unsol_bcast_probe_resp =
1278                sdata_dereference(sdata->u.ap.unsol_bcast_probe_resp,
1279                                  sdata);
1280
1281        /* abort any running channel switch */
1282        mutex_lock(&local->mtx);
1283        sdata->vif.csa_active = false;
1284        if (sdata->csa_block_tx) {
1285                ieee80211_wake_vif_queues(local, sdata,
1286                                          IEEE80211_QUEUE_STOP_REASON_CSA);
1287                sdata->csa_block_tx = false;
1288        }
1289
1290        mutex_unlock(&local->mtx);
1291
1292        kfree(sdata->u.ap.next_beacon);
1293        sdata->u.ap.next_beacon = NULL;
1294
1295        /* turn off carrier for this interface and dependent VLANs */
1296        list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1297                netif_carrier_off(vlan->dev);
1298        netif_carrier_off(dev);
1299
1300        /* remove beacon and probe response */
1301        RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1302        RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1303        RCU_INIT_POINTER(sdata->u.ap.fils_discovery, NULL);
1304        RCU_INIT_POINTER(sdata->u.ap.unsol_bcast_probe_resp, NULL);
1305        kfree_rcu(old_beacon, rcu_head);
1306        if (old_probe_resp)
1307                kfree_rcu(old_probe_resp, rcu_head);
1308        if (old_fils_discovery)
1309                kfree_rcu(old_fils_discovery, rcu_head);
1310        if (old_unsol_bcast_probe_resp)
1311                kfree_rcu(old_unsol_bcast_probe_resp, rcu_head);
1312
1313        kfree(sdata->vif.bss_conf.ftmr_params);
1314        sdata->vif.bss_conf.ftmr_params = NULL;
1315
1316        __sta_info_flush(sdata, true);
1317        ieee80211_free_keys(sdata, true);
1318
1319        sdata->vif.bss_conf.enable_beacon = false;
1320        sdata->beacon_rate_set = false;
1321        sdata->vif.bss_conf.ssid_len = 0;
1322        clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1323        ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1324
1325        if (sdata->wdev.cac_started) {
1326                chandef = sdata->vif.bss_conf.chandef;
1327                cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1328                cfg80211_cac_event(sdata->dev, &chandef,
1329                                   NL80211_RADAR_CAC_ABORTED,
1330                                   GFP_KERNEL);
1331        }
1332
1333        drv_stop_ap(sdata->local, sdata);
1334
1335        /* free all potentially still buffered bcast frames */
1336        local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1337        ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
1338
1339        mutex_lock(&local->mtx);
1340        ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1341        ieee80211_vif_release_channel(sdata);
1342        mutex_unlock(&local->mtx);
1343
1344        return 0;
1345}
1346
1347static int sta_apply_auth_flags(struct ieee80211_local *local,
1348                                struct sta_info *sta,
1349                                u32 mask, u32 set)
1350{
1351        int ret;
1352
1353        if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1354            set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1355            !test_sta_flag(sta, WLAN_STA_AUTH)) {
1356                ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1357                if (ret)
1358                        return ret;
1359        }
1360
1361        if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1362            set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1363            !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1364                /*
1365                 * When peer becomes associated, init rate control as
1366                 * well. Some drivers require rate control initialized
1367                 * before drv_sta_state() is called.
1368                 */
1369                if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
1370                        rate_control_rate_init(sta);
1371
1372                ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1373                if (ret)
1374                        return ret;
1375        }
1376
1377        if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1378                if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1379                        ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1380                else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1381                        ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1382                else
1383                        ret = 0;
1384                if (ret)
1385                        return ret;
1386        }
1387
1388        if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1389            !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1390            test_sta_flag(sta, WLAN_STA_ASSOC)) {
1391                ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1392                if (ret)
1393                        return ret;
1394        }
1395
1396        if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1397            !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1398            test_sta_flag(sta, WLAN_STA_AUTH)) {
1399                ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1400                if (ret)
1401                        return ret;
1402        }
1403
1404        return 0;
1405}
1406
1407static void sta_apply_mesh_params(struct ieee80211_local *local,
1408                                  struct sta_info *sta,
1409                                  struct station_parameters *params)
1410{
1411#ifdef CONFIG_MAC80211_MESH
1412        struct ieee80211_sub_if_data *sdata = sta->sdata;
1413        u32 changed = 0;
1414
1415        if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1416                switch (params->plink_state) {
1417                case NL80211_PLINK_ESTAB:
1418                        if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1419                                changed = mesh_plink_inc_estab_count(sdata);
1420                        sta->mesh->plink_state = params->plink_state;
1421                        sta->mesh->aid = params->peer_aid;
1422
1423                        ieee80211_mps_sta_status_update(sta);
1424                        changed |= ieee80211_mps_set_sta_local_pm(sta,
1425                                      sdata->u.mesh.mshcfg.power_mode);
1426
1427                        ewma_mesh_tx_rate_avg_init(&sta->mesh->tx_rate_avg);
1428                        /* init at low value */
1429                        ewma_mesh_tx_rate_avg_add(&sta->mesh->tx_rate_avg, 10);
1430
1431                        break;
1432                case NL80211_PLINK_LISTEN:
1433                case NL80211_PLINK_BLOCKED:
1434                case NL80211_PLINK_OPN_SNT:
1435                case NL80211_PLINK_OPN_RCVD:
1436                case NL80211_PLINK_CNF_RCVD:
1437                case NL80211_PLINK_HOLDING:
1438                        if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1439                                changed = mesh_plink_dec_estab_count(sdata);
1440                        sta->mesh->plink_state = params->plink_state;
1441
1442                        ieee80211_mps_sta_status_update(sta);
1443                        changed |= ieee80211_mps_set_sta_local_pm(sta,
1444                                        NL80211_MESH_POWER_UNKNOWN);
1445                        break;
1446                default:
1447                        /*  nothing  */
1448                        break;
1449                }
1450        }
1451
1452        switch (params->plink_action) {
1453        case NL80211_PLINK_ACTION_NO_ACTION:
1454                /* nothing */
1455                break;
1456        case NL80211_PLINK_ACTION_OPEN:
1457                changed |= mesh_plink_open(sta);
1458                break;
1459        case NL80211_PLINK_ACTION_BLOCK:
1460                changed |= mesh_plink_block(sta);
1461                break;
1462        }
1463
1464        if (params->local_pm)
1465                changed |= ieee80211_mps_set_sta_local_pm(sta,
1466                                                          params->local_pm);
1467
1468        ieee80211_mbss_info_change_notify(sdata, changed);
1469#endif
1470}
1471
1472static void sta_apply_airtime_params(struct ieee80211_local *local,
1473                                     struct sta_info *sta,
1474                                     struct station_parameters *params)
1475{
1476        u8 ac;
1477
1478        for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
1479                struct airtime_sched_info *air_sched = &local->airtime[ac];
1480                struct airtime_info *air_info = &sta->airtime[ac];
1481                struct txq_info *txqi;
1482                u8 tid;
1483
1484                spin_lock_bh(&air_sched->lock);
1485                for (tid = 0; tid < IEEE80211_NUM_TIDS + 1; tid++) {
1486                        if (air_info->weight == params->airtime_weight ||
1487                            !sta->sta.txq[tid] ||
1488                            ac != ieee80211_ac_from_tid(tid))
1489                                continue;
1490
1491                        airtime_weight_set(air_info, params->airtime_weight);
1492
1493                        txqi = to_txq_info(sta->sta.txq[tid]);
1494                        if (RB_EMPTY_NODE(&txqi->schedule_order))
1495                                continue;
1496
1497                        ieee80211_update_airtime_weight(local, air_sched,
1498                                                        0, true);
1499                }
1500                spin_unlock_bh(&air_sched->lock);
1501        }
1502}
1503
1504static int sta_apply_parameters(struct ieee80211_local *local,
1505                                struct sta_info *sta,
1506                                struct station_parameters *params)
1507{
1508        int ret = 0;
1509        struct ieee80211_supported_band *sband;
1510        struct ieee80211_sub_if_data *sdata = sta->sdata;
1511        u32 mask, set;
1512
1513        sband = ieee80211_get_sband(sdata);
1514        if (!sband)
1515                return -EINVAL;
1516
1517        mask = params->sta_flags_mask;
1518        set = params->sta_flags_set;
1519
1520        if (ieee80211_vif_is_mesh(&sdata->vif)) {
1521                /*
1522                 * In mesh mode, ASSOCIATED isn't part of the nl80211
1523                 * API but must follow AUTHENTICATED for driver state.
1524                 */
1525                if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1526                        mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1527                if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1528                        set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1529        } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1530                /*
1531                 * TDLS -- everything follows authorized, but
1532                 * only becoming authorized is possible, not
1533                 * going back
1534                 */
1535                if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1536                        set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1537                               BIT(NL80211_STA_FLAG_ASSOCIATED);
1538                        mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1539                                BIT(NL80211_STA_FLAG_ASSOCIATED);
1540                }
1541        }
1542
1543        if (mask & BIT(NL80211_STA_FLAG_WME) &&
1544            local->hw.queues >= IEEE80211_NUM_ACS)
1545                sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1546
1547        /* auth flags will be set later for TDLS,
1548         * and for unassociated stations that move to associated */
1549        if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1550            !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1551              (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1552                ret = sta_apply_auth_flags(local, sta, mask, set);
1553                if (ret)
1554                        return ret;
1555        }
1556
1557        if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1558                if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1559                        set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1560                else
1561                        clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1562        }
1563
1564        if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1565                sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1566                if (set & BIT(NL80211_STA_FLAG_MFP))
1567                        set_sta_flag(sta, WLAN_STA_MFP);
1568                else
1569                        clear_sta_flag(sta, WLAN_STA_MFP);
1570        }
1571
1572        if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1573                if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1574                        set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1575                else
1576                        clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1577        }
1578
1579        /* mark TDLS channel switch support, if the AP allows it */
1580        if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1581            !sdata->u.mgd.tdls_chan_switch_prohibited &&
1582            params->ext_capab_len >= 4 &&
1583            params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1584                set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1585
1586        if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1587            !sdata->u.mgd.tdls_wider_bw_prohibited &&
1588            ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1589            params->ext_capab_len >= 8 &&
1590            params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1591                set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1592
1593        if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1594                sta->sta.uapsd_queues = params->uapsd_queues;
1595                sta->sta.max_sp = params->max_sp;
1596        }
1597
1598        /* The sender might not have sent the last bit, consider it to be 0 */
1599        if (params->ext_capab_len >= 8) {
1600                u8 val = (params->ext_capab[7] &
1601                          WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1602
1603                /* we did get all the bits, take the MSB as well */
1604                if (params->ext_capab_len >= 9) {
1605                        u8 val_msb = params->ext_capab[8] &
1606                                WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1607                        val_msb <<= 1;
1608                        val |= val_msb;
1609                }
1610
1611                switch (val) {
1612                case 1:
1613                        sta->sta.max_amsdu_subframes = 32;
1614                        break;
1615                case 2:
1616                        sta->sta.max_amsdu_subframes = 16;
1617                        break;
1618                case 3:
1619                        sta->sta.max_amsdu_subframes = 8;
1620                        break;
1621                default:
1622                        sta->sta.max_amsdu_subframes = 0;
1623                }
1624        }
1625
1626        /*
1627         * cfg80211 validates this (1-2007) and allows setting the AID
1628         * only when creating a new station entry
1629         */
1630        if (params->aid)
1631                sta->sta.aid = params->aid;
1632
1633        /*
1634         * Some of the following updates would be racy if called on an
1635         * existing station, via ieee80211_change_station(). However,
1636         * all such changes are rejected by cfg80211 except for updates
1637         * changing the supported rates on an existing but not yet used
1638         * TDLS peer.
1639         */
1640
1641        if (params->listen_interval >= 0)
1642                sta->listen_interval = params->listen_interval;
1643
1644        if (params->sta_modify_mask & STATION_PARAM_APPLY_STA_TXPOWER) {
1645                sta->sta.txpwr.type = params->txpwr.type;
1646                if (params->txpwr.type == NL80211_TX_POWER_LIMITED)
1647                        sta->sta.txpwr.power = params->txpwr.power;
1648                ret = drv_sta_set_txpwr(local, sdata, sta);
1649                if (ret)
1650                        return ret;
1651        }
1652
1653        if (params->supported_rates && params->supported_rates_len) {
1654                ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1655                                         sband, params->supported_rates,
1656                                         params->supported_rates_len,
1657                                         &sta->sta.supp_rates[sband->band]);
1658        }
1659
1660        if (params->ht_capa)
1661                ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1662                                                  params->ht_capa, sta);
1663
1664        /* VHT can override some HT caps such as the A-MSDU max length */
1665        if (params->vht_capa)
1666                ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1667                                                    params->vht_capa, sta);
1668
1669        if (params->he_capa)
1670                ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband,
1671                                                  (void *)params->he_capa,
1672                                                  params->he_capa_len,
1673                                                  (void *)params->he_6ghz_capa,
1674                                                  sta);
1675
1676        if (params->opmode_notif_used) {
1677                /* returned value is only needed for rc update, but the
1678                 * rc isn't initialized here yet, so ignore it
1679                 */
1680                __ieee80211_vht_handle_opmode(sdata, sta, params->opmode_notif,
1681                                              sband->band);
1682        }
1683
1684        if (params->support_p2p_ps >= 0)
1685                sta->sta.support_p2p_ps = params->support_p2p_ps;
1686
1687        if (ieee80211_vif_is_mesh(&sdata->vif))
1688                sta_apply_mesh_params(local, sta, params);
1689
1690        if (params->airtime_weight)
1691                sta_apply_airtime_params(local, sta, params);
1692
1693
1694        /* set the STA state after all sta info from usermode has been set */
1695        if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1696            set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1697                ret = sta_apply_auth_flags(local, sta, mask, set);
1698                if (ret)
1699                        return ret;
1700        }
1701
1702        return 0;
1703}
1704
1705static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1706                                 const u8 *mac,
1707                                 struct station_parameters *params)
1708{
1709        struct ieee80211_local *local = wiphy_priv(wiphy);
1710        struct sta_info *sta;
1711        struct ieee80211_sub_if_data *sdata;
1712        int err;
1713
1714        if (params->vlan) {
1715                sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1716
1717                if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1718                    sdata->vif.type != NL80211_IFTYPE_AP)
1719                        return -EINVAL;
1720        } else
1721                sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1722
1723        if (ether_addr_equal(mac, sdata->vif.addr))
1724                return -EINVAL;
1725
1726        if (!is_valid_ether_addr(mac))
1727                return -EINVAL;
1728
1729        if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER) &&
1730            sdata->vif.type == NL80211_IFTYPE_STATION &&
1731            !sdata->u.mgd.associated)
1732                return -EINVAL;
1733
1734        sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1735        if (!sta)
1736                return -ENOMEM;
1737
1738        if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1739                sta->sta.tdls = true;
1740
1741        err = sta_apply_parameters(local, sta, params);
1742        if (err) {
1743                sta_info_free(local, sta);
1744                return err;
1745        }
1746
1747        /*
1748         * for TDLS and for unassociated station, rate control should be
1749         * initialized only when rates are known and station is marked
1750         * authorized/associated
1751         */
1752        if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1753            test_sta_flag(sta, WLAN_STA_ASSOC))
1754                rate_control_rate_init(sta);
1755
1756        return sta_info_insert(sta);
1757}
1758
1759static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1760                                 struct station_del_parameters *params)
1761{
1762        struct ieee80211_sub_if_data *sdata;
1763
1764        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1765
1766        if (params->mac)
1767                return sta_info_destroy_addr_bss(sdata, params->mac);
1768
1769        sta_info_flush(sdata);
1770        return 0;
1771}
1772
1773static int ieee80211_change_station(struct wiphy *wiphy,
1774                                    struct net_device *dev, const u8 *mac,
1775                                    struct station_parameters *params)
1776{
1777        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1778        struct ieee80211_local *local = wiphy_priv(wiphy);
1779        struct sta_info *sta;
1780        struct ieee80211_sub_if_data *vlansdata;
1781        enum cfg80211_station_type statype;
1782        int err;
1783
1784        mutex_lock(&local->sta_mtx);
1785
1786        sta = sta_info_get_bss(sdata, mac);
1787        if (!sta) {
1788                err = -ENOENT;
1789                goto out_err;
1790        }
1791
1792        switch (sdata->vif.type) {
1793        case NL80211_IFTYPE_MESH_POINT:
1794                if (sdata->u.mesh.user_mpm)
1795                        statype = CFG80211_STA_MESH_PEER_USER;
1796                else
1797                        statype = CFG80211_STA_MESH_PEER_KERNEL;
1798                break;
1799        case NL80211_IFTYPE_ADHOC:
1800                statype = CFG80211_STA_IBSS;
1801                break;
1802        case NL80211_IFTYPE_STATION:
1803                if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1804                        statype = CFG80211_STA_AP_STA;
1805                        break;
1806                }
1807                if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1808                        statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1809                else
1810                        statype = CFG80211_STA_TDLS_PEER_SETUP;
1811                break;
1812        case NL80211_IFTYPE_AP:
1813        case NL80211_IFTYPE_AP_VLAN:
1814                if (test_sta_flag(sta, WLAN_STA_ASSOC))
1815                        statype = CFG80211_STA_AP_CLIENT;
1816                else
1817                        statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1818                break;
1819        default:
1820                err = -EOPNOTSUPP;
1821                goto out_err;
1822        }
1823
1824        err = cfg80211_check_station_change(wiphy, params, statype);
1825        if (err)
1826                goto out_err;
1827
1828        if (params->vlan && params->vlan != sta->sdata->dev) {
1829                vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1830
1831                if (params->vlan->ieee80211_ptr->use_4addr) {
1832                        if (vlansdata->u.vlan.sta) {
1833                                err = -EBUSY;
1834                                goto out_err;
1835                        }
1836
1837                        rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1838                        __ieee80211_check_fast_rx_iface(vlansdata);
1839                        drv_sta_set_4addr(local, sta->sdata, &sta->sta, true);
1840                }
1841
1842                if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1843                    sta->sdata->u.vlan.sta) {
1844                        ieee80211_clear_fast_rx(sta);
1845                        RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1846                }
1847
1848                if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1849                        ieee80211_vif_dec_num_mcast(sta->sdata);
1850
1851                sta->sdata = vlansdata;
1852                ieee80211_check_fast_xmit(sta);
1853
1854                if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) {
1855                        ieee80211_vif_inc_num_mcast(sta->sdata);
1856                        cfg80211_send_layer2_update(sta->sdata->dev,
1857                                                    sta->sta.addr);
1858                }
1859        }
1860
1861        err = sta_apply_parameters(local, sta, params);
1862        if (err)
1863                goto out_err;
1864
1865        mutex_unlock(&local->sta_mtx);
1866
1867        if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1868            params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1869                ieee80211_recalc_ps(local);
1870                ieee80211_recalc_ps_vif(sdata);
1871        }
1872
1873        return 0;
1874out_err:
1875        mutex_unlock(&local->sta_mtx);
1876        return err;
1877}
1878
1879#ifdef CONFIG_MAC80211_MESH
1880static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1881                               const u8 *dst, const u8 *next_hop)
1882{
1883        struct ieee80211_sub_if_data *sdata;
1884        struct mesh_path *mpath;
1885        struct sta_info *sta;
1886
1887        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1888
1889        rcu_read_lock();
1890        sta = sta_info_get(sdata, next_hop);
1891        if (!sta) {
1892                rcu_read_unlock();
1893                return -ENOENT;
1894        }
1895
1896        mpath = mesh_path_add(sdata, dst);
1897        if (IS_ERR(mpath)) {
1898                rcu_read_unlock();
1899                return PTR_ERR(mpath);
1900        }
1901
1902        mesh_path_fix_nexthop(mpath, sta);
1903
1904        rcu_read_unlock();
1905        return 0;
1906}
1907
1908static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1909                               const u8 *dst)
1910{
1911        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1912
1913        if (dst)
1914                return mesh_path_del(sdata, dst);
1915
1916        mesh_path_flush_by_iface(sdata);
1917        return 0;
1918}
1919
1920static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1921                                  const u8 *dst, const u8 *next_hop)
1922{
1923        struct ieee80211_sub_if_data *sdata;
1924        struct mesh_path *mpath;
1925        struct sta_info *sta;
1926
1927        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1928
1929        rcu_read_lock();
1930
1931        sta = sta_info_get(sdata, next_hop);
1932        if (!sta) {
1933                rcu_read_unlock();
1934                return -ENOENT;
1935        }
1936
1937        mpath = mesh_path_lookup(sdata, dst);
1938        if (!mpath) {
1939                rcu_read_unlock();
1940                return -ENOENT;
1941        }
1942
1943        mesh_path_fix_nexthop(mpath, sta);
1944
1945        rcu_read_unlock();
1946        return 0;
1947}
1948
1949static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1950                            struct mpath_info *pinfo)
1951{
1952        struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1953
1954        if (next_hop_sta)
1955                memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1956        else
1957                eth_zero_addr(next_hop);
1958
1959        memset(pinfo, 0, sizeof(*pinfo));
1960
1961        pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
1962
1963        pinfo->filled = MPATH_INFO_FRAME_QLEN |
1964                        MPATH_INFO_SN |
1965                        MPATH_INFO_METRIC |
1966                        MPATH_INFO_EXPTIME |
1967                        MPATH_INFO_DISCOVERY_TIMEOUT |
1968                        MPATH_INFO_DISCOVERY_RETRIES |
1969                        MPATH_INFO_FLAGS |
1970                        MPATH_INFO_HOP_COUNT |
1971                        MPATH_INFO_PATH_CHANGE;
1972
1973        pinfo->frame_qlen = mpath->frame_queue.qlen;
1974        pinfo->sn = mpath->sn;
1975        pinfo->metric = mpath->metric;
1976        if (time_before(jiffies, mpath->exp_time))
1977                pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1978        pinfo->discovery_timeout =
1979                        jiffies_to_msecs(mpath->discovery_timeout);
1980        pinfo->discovery_retries = mpath->discovery_retries;
1981        if (mpath->flags & MESH_PATH_ACTIVE)
1982                pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1983        if (mpath->flags & MESH_PATH_RESOLVING)
1984                pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1985        if (mpath->flags & MESH_PATH_SN_VALID)
1986                pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1987        if (mpath->flags & MESH_PATH_FIXED)
1988                pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1989        if (mpath->flags & MESH_PATH_RESOLVED)
1990                pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1991        pinfo->hop_count = mpath->hop_count;
1992        pinfo->path_change_count = mpath->path_change_count;
1993}
1994
1995static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1996                               u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1997
1998{
1999        struct ieee80211_sub_if_data *sdata;
2000        struct mesh_path *mpath;
2001
2002        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2003
2004        rcu_read_lock();
2005        mpath = mesh_path_lookup(sdata, dst);
2006        if (!mpath) {
2007                rcu_read_unlock();
2008                return -ENOENT;
2009        }
2010        memcpy(dst, mpath->dst, ETH_ALEN);
2011        mpath_set_pinfo(mpath, next_hop, pinfo);
2012        rcu_read_unlock();
2013        return 0;
2014}
2015
2016static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
2017                                int idx, u8 *dst, u8 *next_hop,
2018                                struct mpath_info *pinfo)
2019{
2020        struct ieee80211_sub_if_data *sdata;
2021        struct mesh_path *mpath;
2022
2023        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2024
2025        rcu_read_lock();
2026        mpath = mesh_path_lookup_by_idx(sdata, idx);
2027        if (!mpath) {
2028                rcu_read_unlock();
2029                return -ENOENT;
2030        }
2031        memcpy(dst, mpath->dst, ETH_ALEN);
2032        mpath_set_pinfo(mpath, next_hop, pinfo);
2033        rcu_read_unlock();
2034        return 0;
2035}
2036
2037static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
2038                          struct mpath_info *pinfo)
2039{
2040        memset(pinfo, 0, sizeof(*pinfo));
2041        memcpy(mpp, mpath->mpp, ETH_ALEN);
2042
2043        pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
2044}
2045
2046static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
2047                             u8 *dst, u8 *mpp, struct mpath_info *pinfo)
2048
2049{
2050        struct ieee80211_sub_if_data *sdata;
2051        struct mesh_path *mpath;
2052
2053        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2054
2055        rcu_read_lock();
2056        mpath = mpp_path_lookup(sdata, dst);
2057        if (!mpath) {
2058                rcu_read_unlock();
2059                return -ENOENT;
2060        }
2061        memcpy(dst, mpath->dst, ETH_ALEN);
2062        mpp_set_pinfo(mpath, mpp, pinfo);
2063        rcu_read_unlock();
2064        return 0;
2065}
2066
2067static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
2068                              int idx, u8 *dst, u8 *mpp,
2069                              struct mpath_info *pinfo)
2070{
2071        struct ieee80211_sub_if_data *sdata;
2072        struct mesh_path *mpath;
2073
2074        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2075
2076        rcu_read_lock();
2077        mpath = mpp_path_lookup_by_idx(sdata, idx);
2078        if (!mpath) {
2079                rcu_read_unlock();
2080                return -ENOENT;
2081        }
2082        memcpy(dst, mpath->dst, ETH_ALEN);
2083        mpp_set_pinfo(mpath, mpp, pinfo);
2084        rcu_read_unlock();
2085        return 0;
2086}
2087
2088static int ieee80211_get_mesh_config(struct wiphy *wiphy,
2089                                struct net_device *dev,
2090                                struct mesh_config *conf)
2091{
2092        struct ieee80211_sub_if_data *sdata;
2093        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2094
2095        memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
2096        return 0;
2097}
2098
2099static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
2100{
2101        return (mask >> (parm-1)) & 0x1;
2102}
2103
2104static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
2105                const struct mesh_setup *setup)
2106{
2107        u8 *new_ie;
2108        const u8 *old_ie;
2109        struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
2110                                        struct ieee80211_sub_if_data, u.mesh);
2111        int i;
2112
2113        /* allocate information elements */
2114        new_ie = NULL;
2115        old_ie = ifmsh->ie;
2116
2117        if (setup->ie_len) {
2118                new_ie = kmemdup(setup->ie, setup->ie_len,
2119                                GFP_KERNEL);
2120                if (!new_ie)
2121                        return -ENOMEM;
2122        }
2123        ifmsh->ie_len = setup->ie_len;
2124        ifmsh->ie = new_ie;
2125        kfree(old_ie);
2126
2127        /* now copy the rest of the setup parameters */
2128        ifmsh->mesh_id_len = setup->mesh_id_len;
2129        memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
2130        ifmsh->mesh_sp_id = setup->sync_method;
2131        ifmsh->mesh_pp_id = setup->path_sel_proto;
2132        ifmsh->mesh_pm_id = setup->path_metric;
2133        ifmsh->user_mpm = setup->user_mpm;
2134        ifmsh->mesh_auth_id = setup->auth_id;
2135        ifmsh->security = IEEE80211_MESH_SEC_NONE;
2136        ifmsh->userspace_handles_dfs = setup->userspace_handles_dfs;
2137        if (setup->is_authenticated)
2138                ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
2139        if (setup->is_secure)
2140                ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
2141
2142        /* mcast rate setting in Mesh Node */
2143        memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
2144                                                sizeof(setup->mcast_rate));
2145        sdata->vif.bss_conf.basic_rates = setup->basic_rates;
2146
2147        sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
2148        sdata->vif.bss_conf.dtim_period = setup->dtim_period;
2149
2150        sdata->beacon_rate_set = false;
2151        if (wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2152                                    NL80211_EXT_FEATURE_BEACON_RATE_LEGACY)) {
2153                for (i = 0; i < NUM_NL80211_BANDS; i++) {
2154                        sdata->beacon_rateidx_mask[i] =
2155                                setup->beacon_rate.control[i].legacy;
2156                        if (sdata->beacon_rateidx_mask[i])
2157                                sdata->beacon_rate_set = true;
2158                }
2159        }
2160
2161        return 0;
2162}
2163
2164static int ieee80211_update_mesh_config(struct wiphy *wiphy,
2165                                        struct net_device *dev, u32 mask,
2166                                        const struct mesh_config *nconf)
2167{
2168        struct mesh_config *conf;
2169        struct ieee80211_sub_if_data *sdata;
2170        struct ieee80211_if_mesh *ifmsh;
2171
2172        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2173        ifmsh = &sdata->u.mesh;
2174
2175        /* Set the config options which we are interested in setting */
2176        conf = &(sdata->u.mesh.mshcfg);
2177        if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
2178                conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
2179        if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
2180                conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
2181        if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
2182                conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
2183        if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
2184                conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
2185        if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
2186                conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
2187        if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
2188                conf->dot11MeshTTL = nconf->dot11MeshTTL;
2189        if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
2190                conf->element_ttl = nconf->element_ttl;
2191        if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
2192                if (ifmsh->user_mpm)
2193                        return -EBUSY;
2194                conf->auto_open_plinks = nconf->auto_open_plinks;
2195        }
2196        if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
2197                conf->dot11MeshNbrOffsetMaxNeighbor =
2198                        nconf->dot11MeshNbrOffsetMaxNeighbor;
2199        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
2200                conf->dot11MeshHWMPmaxPREQretries =
2201                        nconf->dot11MeshHWMPmaxPREQretries;
2202        if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
2203                conf->path_refresh_time = nconf->path_refresh_time;
2204        if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
2205                conf->min_discovery_timeout = nconf->min_discovery_timeout;
2206        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
2207                conf->dot11MeshHWMPactivePathTimeout =
2208                        nconf->dot11MeshHWMPactivePathTimeout;
2209        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
2210                conf->dot11MeshHWMPpreqMinInterval =
2211                        nconf->dot11MeshHWMPpreqMinInterval;
2212        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
2213                conf->dot11MeshHWMPperrMinInterval =
2214                        nconf->dot11MeshHWMPperrMinInterval;
2215        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
2216                           mask))
2217                conf->dot11MeshHWMPnetDiameterTraversalTime =
2218                        nconf->dot11MeshHWMPnetDiameterTraversalTime;
2219        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
2220                conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
2221                ieee80211_mesh_root_setup(ifmsh);
2222        }
2223        if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
2224                /* our current gate announcement implementation rides on root
2225                 * announcements, so require this ifmsh to also be a root node
2226                 * */
2227                if (nconf->dot11MeshGateAnnouncementProtocol &&
2228                    !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
2229                        conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
2230                        ieee80211_mesh_root_setup(ifmsh);
2231                }
2232                conf->dot11MeshGateAnnouncementProtocol =
2233                        nconf->dot11MeshGateAnnouncementProtocol;
2234        }
2235        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
2236                conf->dot11MeshHWMPRannInterval =
2237                        nconf->dot11MeshHWMPRannInterval;
2238        if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
2239                conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
2240        if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
2241                /* our RSSI threshold implementation is supported only for
2242                 * devices that report signal in dBm.
2243                 */
2244                if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
2245                        return -ENOTSUPP;
2246                conf->rssi_threshold = nconf->rssi_threshold;
2247        }
2248        if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
2249                conf->ht_opmode = nconf->ht_opmode;
2250                sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
2251                ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
2252        }
2253        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
2254                conf->dot11MeshHWMPactivePathToRootTimeout =
2255                        nconf->dot11MeshHWMPactivePathToRootTimeout;
2256        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
2257                conf->dot11MeshHWMProotInterval =
2258                        nconf->dot11MeshHWMProotInterval;
2259        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
2260                conf->dot11MeshHWMPconfirmationInterval =
2261                        nconf->dot11MeshHWMPconfirmationInterval;
2262        if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
2263                conf->power_mode = nconf->power_mode;
2264                ieee80211_mps_local_status_update(sdata);
2265        }
2266        if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
2267                conf->dot11MeshAwakeWindowDuration =
2268                        nconf->dot11MeshAwakeWindowDuration;
2269        if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
2270                conf->plink_timeout = nconf->plink_timeout;
2271        if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_GATE, mask))
2272                conf->dot11MeshConnectedToMeshGate =
2273                        nconf->dot11MeshConnectedToMeshGate;
2274        if (_chg_mesh_attr(NL80211_MESHCONF_NOLEARN, mask))
2275                conf->dot11MeshNolearn = nconf->dot11MeshNolearn;
2276        if (_chg_mesh_attr(NL80211_MESHCONF_CONNECTED_TO_AS, mask))
2277                conf->dot11MeshConnectedToAuthServer =
2278                        nconf->dot11MeshConnectedToAuthServer;
2279        ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
2280        return 0;
2281}
2282
2283static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
2284                               const struct mesh_config *conf,
2285                               const struct mesh_setup *setup)
2286{
2287        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2288        struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2289        int err;
2290
2291        memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2292        err = copy_mesh_setup(ifmsh, setup);
2293        if (err)
2294                return err;
2295
2296        sdata->control_port_over_nl80211 = setup->control_port_over_nl80211;
2297
2298        /* can mesh use other SMPS modes? */
2299        sdata->smps_mode = IEEE80211_SMPS_OFF;
2300        sdata->needed_rx_chains = sdata->local->rx_chains;
2301
2302        mutex_lock(&sdata->local->mtx);
2303        err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2304                                        IEEE80211_CHANCTX_SHARED);
2305        mutex_unlock(&sdata->local->mtx);
2306        if (err)
2307                return err;
2308
2309        return ieee80211_start_mesh(sdata);
2310}
2311
2312static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2313{
2314        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2315
2316        ieee80211_stop_mesh(sdata);
2317        mutex_lock(&sdata->local->mtx);
2318        ieee80211_vif_release_channel(sdata);
2319        kfree(sdata->u.mesh.ie);
2320        mutex_unlock(&sdata->local->mtx);
2321
2322        return 0;
2323}
2324#endif
2325
2326static int ieee80211_change_bss(struct wiphy *wiphy,
2327                                struct net_device *dev,
2328                                struct bss_parameters *params)
2329{
2330        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2331        struct ieee80211_supported_band *sband;
2332        u32 changed = 0;
2333
2334        if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2335                return -ENOENT;
2336
2337        sband = ieee80211_get_sband(sdata);
2338        if (!sband)
2339                return -EINVAL;
2340
2341        if (params->use_cts_prot >= 0) {
2342                sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2343                changed |= BSS_CHANGED_ERP_CTS_PROT;
2344        }
2345        if (params->use_short_preamble >= 0) {
2346                sdata->vif.bss_conf.use_short_preamble =
2347                        params->use_short_preamble;
2348                changed |= BSS_CHANGED_ERP_PREAMBLE;
2349        }
2350
2351        if (!sdata->vif.bss_conf.use_short_slot &&
2352            (sband->band == NL80211_BAND_5GHZ ||
2353             sband->band == NL80211_BAND_6GHZ)) {
2354                sdata->vif.bss_conf.use_short_slot = true;
2355                changed |= BSS_CHANGED_ERP_SLOT;
2356        }
2357
2358        if (params->use_short_slot_time >= 0) {
2359                sdata->vif.bss_conf.use_short_slot =
2360                        params->use_short_slot_time;
2361                changed |= BSS_CHANGED_ERP_SLOT;
2362        }
2363
2364        if (params->basic_rates) {
2365                ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2366                                         wiphy->bands[sband->band],
2367                                         params->basic_rates,
2368                                         params->basic_rates_len,
2369                                         &sdata->vif.bss_conf.basic_rates);
2370                changed |= BSS_CHANGED_BASIC_RATES;
2371                ieee80211_check_rate_mask(sdata);
2372        }
2373
2374        if (params->ap_isolate >= 0) {
2375                if (params->ap_isolate)
2376                        sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2377                else
2378                        sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2379                ieee80211_check_fast_rx_iface(sdata);
2380        }
2381
2382        if (params->ht_opmode >= 0) {
2383                sdata->vif.bss_conf.ht_operation_mode =
2384                        (u16) params->ht_opmode;
2385                changed |= BSS_CHANGED_HT;
2386        }
2387
2388        if (params->p2p_ctwindow >= 0) {
2389                sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2390                                        ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2391                sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2392                        params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2393                changed |= BSS_CHANGED_P2P_PS;
2394        }
2395
2396        if (params->p2p_opp_ps > 0) {
2397                sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2398                                        IEEE80211_P2P_OPPPS_ENABLE_BIT;
2399                changed |= BSS_CHANGED_P2P_PS;
2400        } else if (params->p2p_opp_ps == 0) {
2401                sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2402                                        ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2403                changed |= BSS_CHANGED_P2P_PS;
2404        }
2405
2406        ieee80211_bss_info_change_notify(sdata, changed);
2407
2408        return 0;
2409}
2410
2411static int ieee80211_set_txq_params(struct wiphy *wiphy,
2412                                    struct net_device *dev,
2413                                    struct ieee80211_txq_params *params)
2414{
2415        struct ieee80211_local *local = wiphy_priv(wiphy);
2416        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2417        struct ieee80211_tx_queue_params p;
2418
2419        if (!local->ops->conf_tx)
2420                return -EOPNOTSUPP;
2421
2422        if (local->hw.queues < IEEE80211_NUM_ACS)
2423                return -EOPNOTSUPP;
2424
2425        memset(&p, 0, sizeof(p));
2426        p.aifs = params->aifs;
2427        p.cw_max = params->cwmax;
2428        p.cw_min = params->cwmin;
2429        p.txop = params->txop;
2430
2431        /*
2432         * Setting tx queue params disables u-apsd because it's only
2433         * called in master mode.
2434         */
2435        p.uapsd = false;
2436
2437        ieee80211_regulatory_limit_wmm_params(sdata, &p, params->ac);
2438
2439        sdata->tx_conf[params->ac] = p;
2440        if (drv_conf_tx(local, sdata, params->ac, &p)) {
2441                wiphy_debug(local->hw.wiphy,
2442                            "failed to set TX queue parameters for AC %d\n",
2443                            params->ac);
2444                return -EINVAL;
2445        }
2446
2447        ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2448
2449        return 0;
2450}
2451
2452#ifdef CONFIG_PM
2453static int ieee80211_suspend(struct wiphy *wiphy,
2454                             struct cfg80211_wowlan *wowlan)
2455{
2456        return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2457}
2458
2459static int ieee80211_resume(struct wiphy *wiphy)
2460{
2461        return __ieee80211_resume(wiphy_priv(wiphy));
2462}
2463#else
2464#define ieee80211_suspend NULL
2465#define ieee80211_resume NULL
2466#endif
2467
2468static int ieee80211_scan(struct wiphy *wiphy,
2469                          struct cfg80211_scan_request *req)
2470{
2471        struct ieee80211_sub_if_data *sdata;
2472
2473        sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2474
2475        switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2476        case NL80211_IFTYPE_STATION:
2477        case NL80211_IFTYPE_ADHOC:
2478        case NL80211_IFTYPE_MESH_POINT:
2479        case NL80211_IFTYPE_P2P_CLIENT:
2480        case NL80211_IFTYPE_P2P_DEVICE:
2481                break;
2482        case NL80211_IFTYPE_P2P_GO:
2483                if (sdata->local->ops->hw_scan)
2484                        break;
2485                /*
2486                 * FIXME: implement NoA while scanning in software,
2487                 * for now fall through to allow scanning only when
2488                 * beaconing hasn't been configured yet
2489                 */
2490                fallthrough;
2491        case NL80211_IFTYPE_AP:
2492                /*
2493                 * If the scan has been forced (and the driver supports
2494                 * forcing), don't care about being beaconing already.
2495                 * This will create problems to the attached stations (e.g. all
2496                 * the  frames sent while scanning on other channel will be
2497                 * lost)
2498                 */
2499                if (sdata->u.ap.beacon &&
2500                    (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2501                     !(req->flags & NL80211_SCAN_FLAG_AP)))
2502                        return -EOPNOTSUPP;
2503                break;
2504        case NL80211_IFTYPE_NAN:
2505        default:
2506                return -EOPNOTSUPP;
2507        }
2508
2509        return ieee80211_request_scan(sdata, req);
2510}
2511
2512static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2513{
2514        ieee80211_scan_cancel(wiphy_priv(wiphy));
2515}
2516
2517static int
2518ieee80211_sched_scan_start(struct wiphy *wiphy,
2519                           struct net_device *dev,
2520                           struct cfg80211_sched_scan_request *req)
2521{
2522        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2523
2524        if (!sdata->local->ops->sched_scan_start)
2525                return -EOPNOTSUPP;
2526
2527        return ieee80211_request_sched_scan_start(sdata, req);
2528}
2529
2530static int
2531ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev,
2532                          u64 reqid)
2533{
2534        struct ieee80211_local *local = wiphy_priv(wiphy);
2535
2536        if (!local->ops->sched_scan_stop)
2537                return -EOPNOTSUPP;
2538
2539        return ieee80211_request_sched_scan_stop(local);
2540}
2541
2542static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2543                          struct cfg80211_auth_request *req)
2544{
2545        return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2546}
2547
2548static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2549                           struct cfg80211_assoc_request *req)
2550{
2551        return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2552}
2553
2554static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2555                            struct cfg80211_deauth_request *req)
2556{
2557        return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2558}
2559
2560static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2561                              struct cfg80211_disassoc_request *req)
2562{
2563        return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2564}
2565
2566static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2567                               struct cfg80211_ibss_params *params)
2568{
2569        return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2570}
2571
2572static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2573{
2574        return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2575}
2576
2577static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2578                              struct ocb_setup *setup)
2579{
2580        return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2581}
2582
2583static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2584{
2585        return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2586}
2587
2588static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2589                                    int rate[NUM_NL80211_BANDS])
2590{
2591        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2592
2593        memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2594               sizeof(int) * NUM_NL80211_BANDS);
2595
2596        ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_MCAST_RATE);
2597
2598        return 0;
2599}
2600
2601static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2602{
2603        struct ieee80211_local *local = wiphy_priv(wiphy);
2604        int err;
2605
2606        if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2607                ieee80211_check_fast_xmit_all(local);
2608
2609                err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2610
2611                if (err) {
2612                        ieee80211_check_fast_xmit_all(local);
2613                        return err;
2614                }
2615        }
2616
2617        if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2618            (changed & WIPHY_PARAM_DYN_ACK)) {
2619                s16 coverage_class;
2620
2621                coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2622                                        wiphy->coverage_class : -1;
2623                err = drv_set_coverage_class(local, coverage_class);
2624
2625                if (err)
2626                        return err;
2627        }
2628
2629        if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2630                err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2631
2632                if (err)
2633                        return err;
2634        }
2635
2636        if (changed & WIPHY_PARAM_RETRY_SHORT) {
2637                if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2638                        return -EINVAL;
2639                local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2640        }
2641        if (changed & WIPHY_PARAM_RETRY_LONG) {
2642                if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2643                        return -EINVAL;
2644                local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2645        }
2646        if (changed &
2647            (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2648                ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2649
2650        if (changed & (WIPHY_PARAM_TXQ_LIMIT |
2651                       WIPHY_PARAM_TXQ_MEMORY_LIMIT |
2652                       WIPHY_PARAM_TXQ_QUANTUM))
2653                ieee80211_txq_set_params(local);
2654
2655        return 0;
2656}
2657
2658static int ieee80211_set_tx_power(struct wiphy *wiphy,
2659                                  struct wireless_dev *wdev,
2660                                  enum nl80211_tx_power_setting type, int mbm)
2661{
2662        struct ieee80211_local *local = wiphy_priv(wiphy);
2663        struct ieee80211_sub_if_data *sdata;
2664        enum nl80211_tx_power_setting txp_type = type;
2665        bool update_txp_type = false;
2666        bool has_monitor = false;
2667
2668        if (wdev) {
2669                sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2670
2671                if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2672                        sdata = rtnl_dereference(local->monitor_sdata);
2673                        if (!sdata)
2674                                return -EOPNOTSUPP;
2675                }
2676
2677                switch (type) {
2678                case NL80211_TX_POWER_AUTOMATIC:
2679                        sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2680                        txp_type = NL80211_TX_POWER_LIMITED;
2681                        break;
2682                case NL80211_TX_POWER_LIMITED:
2683                case NL80211_TX_POWER_FIXED:
2684                        if (mbm < 0 || (mbm % 100))
2685                                return -EOPNOTSUPP;
2686                        sdata->user_power_level = MBM_TO_DBM(mbm);
2687                        break;
2688                }
2689
2690                if (txp_type != sdata->vif.bss_conf.txpower_type) {
2691                        update_txp_type = true;
2692                        sdata->vif.bss_conf.txpower_type = txp_type;
2693                }
2694
2695                ieee80211_recalc_txpower(sdata, update_txp_type);
2696
2697                return 0;
2698        }
2699
2700        switch (type) {
2701        case NL80211_TX_POWER_AUTOMATIC:
2702                local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2703                txp_type = NL80211_TX_POWER_LIMITED;
2704                break;
2705        case NL80211_TX_POWER_LIMITED:
2706        case NL80211_TX_POWER_FIXED:
2707                if (mbm < 0 || (mbm % 100))
2708                        return -EOPNOTSUPP;
2709                local->user_power_level = MBM_TO_DBM(mbm);
2710                break;
2711        }
2712
2713        mutex_lock(&local->iflist_mtx);
2714        list_for_each_entry(sdata, &local->interfaces, list) {
2715                if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
2716                        has_monitor = true;
2717                        continue;
2718                }
2719                sdata->user_power_level = local->user_power_level;
2720                if (txp_type != sdata->vif.bss_conf.txpower_type)
2721                        update_txp_type = true;
2722                sdata->vif.bss_conf.txpower_type = txp_type;
2723        }
2724        list_for_each_entry(sdata, &local->interfaces, list) {
2725                if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
2726                        continue;
2727                ieee80211_recalc_txpower(sdata, update_txp_type);
2728        }
2729        mutex_unlock(&local->iflist_mtx);
2730
2731        if (has_monitor) {
2732                sdata = rtnl_dereference(local->monitor_sdata);
2733                if (sdata) {
2734                        sdata->user_power_level = local->user_power_level;
2735                        if (txp_type != sdata->vif.bss_conf.txpower_type)
2736                                update_txp_type = true;
2737                        sdata->vif.bss_conf.txpower_type = txp_type;
2738
2739                        ieee80211_recalc_txpower(sdata, update_txp_type);
2740                }
2741        }
2742
2743        return 0;
2744}
2745
2746static int ieee80211_get_tx_power(struct wiphy *wiphy,
2747                                  struct wireless_dev *wdev,
2748                                  int *dbm)
2749{
2750        struct ieee80211_local *local = wiphy_priv(wiphy);
2751        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2752
2753        if (local->ops->get_txpower)
2754                return drv_get_txpower(local, sdata, dbm);
2755
2756        if (!local->use_chanctx)
2757                *dbm = local->hw.conf.power_level;
2758        else
2759                *dbm = sdata->vif.bss_conf.txpower;
2760
2761        return 0;
2762}
2763
2764static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2765{
2766        struct ieee80211_local *local = wiphy_priv(wiphy);
2767
2768        drv_rfkill_poll(local);
2769}
2770
2771#ifdef CONFIG_NL80211_TESTMODE
2772static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2773                                  struct wireless_dev *wdev,
2774                                  void *data, int len)
2775{
2776        struct ieee80211_local *local = wiphy_priv(wiphy);
2777        struct ieee80211_vif *vif = NULL;
2778
2779        if (!local->ops->testmode_cmd)
2780                return -EOPNOTSUPP;
2781
2782        if (wdev) {
2783                struct ieee80211_sub_if_data *sdata;
2784
2785                sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2786                if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2787                        vif = &sdata->vif;
2788        }
2789
2790        return local->ops->testmode_cmd(&local->hw, vif, data, len);
2791}
2792
2793static int ieee80211_testmode_dump(struct wiphy *wiphy,
2794                                   struct sk_buff *skb,
2795                                   struct netlink_callback *cb,
2796                                   void *data, int len)
2797{
2798        struct ieee80211_local *local = wiphy_priv(wiphy);
2799
2800        if (!local->ops->testmode_dump)
2801                return -EOPNOTSUPP;
2802
2803        return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2804}
2805#endif
2806
2807int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2808                                 enum ieee80211_smps_mode smps_mode)
2809{
2810        const u8 *ap;
2811        enum ieee80211_smps_mode old_req;
2812        int err;
2813        struct sta_info *sta;
2814        bool tdls_peer_found = false;
2815
2816        lockdep_assert_held(&sdata->wdev.mtx);
2817
2818        if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2819                return -EINVAL;
2820
2821        old_req = sdata->u.mgd.req_smps;
2822        sdata->u.mgd.req_smps = smps_mode;
2823
2824        if (old_req == smps_mode &&
2825            smps_mode != IEEE80211_SMPS_AUTOMATIC)
2826                return 0;
2827
2828        /*
2829         * If not associated, or current association is not an HT
2830         * association, there's no need to do anything, just store
2831         * the new value until we associate.
2832         */
2833        if (!sdata->u.mgd.associated ||
2834            sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2835                return 0;
2836
2837        ap = sdata->u.mgd.associated->bssid;
2838
2839        rcu_read_lock();
2840        list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2841                if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2842                    !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2843                        continue;
2844
2845                tdls_peer_found = true;
2846                break;
2847        }
2848        rcu_read_unlock();
2849
2850        if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2851                if (tdls_peer_found || !sdata->u.mgd.powersave)
2852                        smps_mode = IEEE80211_SMPS_OFF;
2853                else
2854                        smps_mode = IEEE80211_SMPS_DYNAMIC;
2855        }
2856
2857        /* send SM PS frame to AP */
2858        err = ieee80211_send_smps_action(sdata, smps_mode,
2859                                         ap, ap);
2860        if (err)
2861                sdata->u.mgd.req_smps = old_req;
2862        else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2863                ieee80211_teardown_tdls_peers(sdata);
2864
2865        return err;
2866}
2867
2868static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2869                                    bool enabled, int timeout)
2870{
2871        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2872        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2873
2874        if (sdata->vif.type != NL80211_IFTYPE_STATION)
2875                return -EOPNOTSUPP;
2876
2877        if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2878                return -EOPNOTSUPP;
2879
2880        if (enabled == sdata->u.mgd.powersave &&
2881            timeout == local->dynamic_ps_forced_timeout)
2882                return 0;
2883
2884        sdata->u.mgd.powersave = enabled;
2885        local->dynamic_ps_forced_timeout = timeout;
2886
2887        /* no change, but if automatic follow powersave */
2888        sdata_lock(sdata);
2889        __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2890        sdata_unlock(sdata);
2891
2892        if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2893                ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2894
2895        ieee80211_recalc_ps(local);
2896        ieee80211_recalc_ps_vif(sdata);
2897        ieee80211_check_fast_rx_iface(sdata);
2898
2899        return 0;
2900}
2901
2902static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2903                                         struct net_device *dev,
2904                                         s32 rssi_thold, u32 rssi_hyst)
2905{
2906        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2907        struct ieee80211_vif *vif = &sdata->vif;
2908        struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2909
2910        if (rssi_thold == bss_conf->cqm_rssi_thold &&
2911            rssi_hyst == bss_conf->cqm_rssi_hyst)
2912                return 0;
2913
2914        if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2915            !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2916                return -EOPNOTSUPP;
2917
2918        bss_conf->cqm_rssi_thold = rssi_thold;
2919        bss_conf->cqm_rssi_hyst = rssi_hyst;
2920        bss_conf->cqm_rssi_low = 0;
2921        bss_conf->cqm_rssi_high = 0;
2922        sdata->u.mgd.last_cqm_event_signal = 0;
2923
2924        /* tell the driver upon association, unless already associated */
2925        if (sdata->u.mgd.associated &&
2926            sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2927                ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2928
2929        return 0;
2930}
2931
2932static int ieee80211_set_cqm_rssi_range_config(struct wiphy *wiphy,
2933                                               struct net_device *dev,
2934                                               s32 rssi_low, s32 rssi_high)
2935{
2936        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2937        struct ieee80211_vif *vif = &sdata->vif;
2938        struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2939
2940        if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER)
2941                return -EOPNOTSUPP;
2942
2943        bss_conf->cqm_rssi_low = rssi_low;
2944        bss_conf->cqm_rssi_high = rssi_high;
2945        bss_conf->cqm_rssi_thold = 0;
2946        bss_conf->cqm_rssi_hyst = 0;
2947        sdata->u.mgd.last_cqm_event_signal = 0;
2948
2949        /* tell the driver upon association, unless already associated */
2950        if (sdata->u.mgd.associated &&
2951            sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2952                ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2953
2954        return 0;
2955}
2956
2957static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2958                                      struct net_device *dev,
2959                                      const u8 *addr,
2960                                      const struct cfg80211_bitrate_mask *mask)
2961{
2962        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2963        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2964        int i, ret;
2965
2966        if (!ieee80211_sdata_running(sdata))
2967                return -ENETDOWN;
2968
2969        /*
2970         * If active validate the setting and reject it if it doesn't leave
2971         * at least one basic rate usable, since we really have to be able
2972         * to send something, and if we're an AP we have to be able to do
2973         * so at a basic rate so that all clients can receive it.
2974         */
2975        if (rcu_access_pointer(sdata->vif.chanctx_conf) &&
2976            sdata->vif.bss_conf.chandef.chan) {
2977                u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2978                enum nl80211_band band = sdata->vif.bss_conf.chandef.chan->band;
2979
2980                if (!(mask->control[band].legacy & basic_rates))
2981                        return -EINVAL;
2982        }
2983
2984        if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2985                ret = drv_set_bitrate_mask(local, sdata, mask);
2986                if (ret)
2987                        return ret;
2988        }
2989
2990        for (i = 0; i < NUM_NL80211_BANDS; i++) {
2991                struct ieee80211_supported_band *sband = wiphy->bands[i];
2992                int j;
2993
2994                sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2995                memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2996                       sizeof(mask->control[i].ht_mcs));
2997                memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2998                       mask->control[i].vht_mcs,
2999                       sizeof(mask->control[i].vht_mcs));
3000
3001                sdata->rc_has_mcs_mask[i] = false;
3002                sdata->rc_has_vht_mcs_mask[i] = false;
3003                if (!sband)
3004                        continue;
3005
3006                for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
3007                        if (sdata->rc_rateidx_mcs_mask[i][j] != 0xff) {
3008                                sdata->rc_has_mcs_mask[i] = true;
3009                                break;
3010                        }
3011                }
3012
3013                for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
3014                        if (sdata->rc_rateidx_vht_mcs_mask[i][j] != 0xffff) {
3015                                sdata->rc_has_vht_mcs_mask[i] = true;
3016                                break;
3017                        }
3018                }
3019        }
3020
3021        return 0;
3022}
3023
3024static int ieee80211_start_radar_detection(struct wiphy *wiphy,
3025                                           struct net_device *dev,
3026                                           struct cfg80211_chan_def *chandef,
3027                                           u32 cac_time_ms)
3028{
3029        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3030        struct ieee80211_local *local = sdata->local;
3031        int err;
3032
3033        mutex_lock(&local->mtx);
3034        if (!list_empty(&local->roc_list) || local->scanning) {
3035                err = -EBUSY;
3036                goto out_unlock;
3037        }
3038
3039        /* whatever, but channel contexts should not complain about that one */
3040        sdata->smps_mode = IEEE80211_SMPS_OFF;
3041        sdata->needed_rx_chains = local->rx_chains;
3042
3043        err = ieee80211_vif_use_channel(sdata, chandef,
3044                                        IEEE80211_CHANCTX_SHARED);
3045        if (err)
3046                goto out_unlock;
3047
3048        ieee80211_queue_delayed_work(&sdata->local->hw,
3049                                     &sdata->dfs_cac_timer_work,
3050                                     msecs_to_jiffies(cac_time_ms));
3051
3052 out_unlock:
3053        mutex_unlock(&local->mtx);
3054        return err;
3055}
3056
3057static void ieee80211_end_cac(struct wiphy *wiphy,
3058                              struct net_device *dev)
3059{
3060        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3061        struct ieee80211_local *local = sdata->local;
3062
3063        mutex_lock(&local->mtx);
3064        list_for_each_entry(sdata, &local->interfaces, list) {
3065                /* it might be waiting for the local->mtx, but then
3066                 * by the time it gets it, sdata->wdev.cac_started
3067                 * will no longer be true
3068                 */
3069                cancel_delayed_work(&sdata->dfs_cac_timer_work);
3070
3071                if (sdata->wdev.cac_started) {
3072                        ieee80211_vif_release_channel(sdata);
3073                        sdata->wdev.cac_started = false;
3074                }
3075        }
3076        mutex_unlock(&local->mtx);
3077}
3078
3079static struct cfg80211_beacon_data *
3080cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
3081{
3082        struct cfg80211_beacon_data *new_beacon;
3083        u8 *pos;
3084        int len;
3085
3086        len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
3087              beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3088              beacon->probe_resp_len + beacon->lci_len + beacon->civicloc_len;
3089
3090        new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3091        if (!new_beacon)
3092                return NULL;
3093
3094        pos = (u8 *)(new_beacon + 1);
3095        if (beacon->head_len) {
3096                new_beacon->head_len = beacon->head_len;
3097                new_beacon->head = pos;
3098                memcpy(pos, beacon->head, beacon->head_len);
3099                pos += beacon->head_len;
3100        }
3101        if (beacon->tail_len) {
3102                new_beacon->tail_len = beacon->tail_len;
3103                new_beacon->tail = pos;
3104                memcpy(pos, beacon->tail, beacon->tail_len);
3105                pos += beacon->tail_len;
3106        }
3107        if (beacon->beacon_ies_len) {
3108                new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3109                new_beacon->beacon_ies = pos;
3110                memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3111                pos += beacon->beacon_ies_len;
3112        }
3113        if (beacon->proberesp_ies_len) {
3114                new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3115                new_beacon->proberesp_ies = pos;
3116                memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3117                pos += beacon->proberesp_ies_len;
3118        }
3119        if (beacon->assocresp_ies_len) {
3120                new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3121                new_beacon->assocresp_ies = pos;
3122                memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3123                pos += beacon->assocresp_ies_len;
3124        }
3125        if (beacon->probe_resp_len) {
3126                new_beacon->probe_resp_len = beacon->probe_resp_len;
3127                new_beacon->probe_resp = pos;
3128                memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3129                pos += beacon->probe_resp_len;
3130        }
3131
3132        /* might copy -1, meaning no changes requested */
3133        new_beacon->ftm_responder = beacon->ftm_responder;
3134        if (beacon->lci) {
3135                new_beacon->lci_len = beacon->lci_len;
3136                new_beacon->lci = pos;
3137                memcpy(pos, beacon->lci, beacon->lci_len);
3138                pos += beacon->lci_len;
3139        }
3140        if (beacon->civicloc) {
3141                new_beacon->civicloc_len = beacon->civicloc_len;
3142                new_beacon->civicloc = pos;
3143                memcpy(pos, beacon->civicloc, beacon->civicloc_len);
3144                pos += beacon->civicloc_len;
3145        }
3146
3147        return new_beacon;
3148}
3149
3150void ieee80211_csa_finish(struct ieee80211_vif *vif)
3151{
3152        struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3153
3154        ieee80211_queue_work(&sdata->local->hw,
3155                             &sdata->csa_finalize_work);
3156}
3157EXPORT_SYMBOL(ieee80211_csa_finish);
3158
3159static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3160                                          u32 *changed)
3161{
3162        int err;
3163
3164        switch (sdata->vif.type) {
3165        case NL80211_IFTYPE_AP:
3166                err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
3167                                              NULL, NULL);
3168                kfree(sdata->u.ap.next_beacon);
3169                sdata->u.ap.next_beacon = NULL;
3170
3171                if (err < 0)
3172                        return err;
3173                *changed |= err;
3174                break;
3175        case NL80211_IFTYPE_ADHOC:
3176                err = ieee80211_ibss_finish_csa(sdata);
3177                if (err < 0)
3178                        return err;
3179                *changed |= err;
3180                break;
3181#ifdef CONFIG_MAC80211_MESH
3182        case NL80211_IFTYPE_MESH_POINT:
3183                err = ieee80211_mesh_finish_csa(sdata);
3184                if (err < 0)
3185                        return err;
3186                *changed |= err;
3187                break;
3188#endif
3189        default:
3190                WARN_ON(1);
3191                return -EINVAL;
3192        }
3193
3194        return 0;
3195}
3196
3197static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3198{
3199        struct ieee80211_local *local = sdata->local;
3200        u32 changed = 0;
3201        int err;
3202
3203        sdata_assert_lock(sdata);
3204        lockdep_assert_held(&local->mtx);
3205        lockdep_assert_held(&local->chanctx_mtx);
3206
3207        /*
3208         * using reservation isn't immediate as it may be deferred until later
3209         * with multi-vif. once reservation is complete it will re-schedule the
3210         * work with no reserved_chanctx so verify chandef to check if it
3211         * completed successfully
3212         */
3213
3214        if (sdata->reserved_chanctx) {
3215                /*
3216                 * with multi-vif csa driver may call ieee80211_csa_finish()
3217                 * many times while waiting for other interfaces to use their
3218                 * reservations
3219                 */
3220                if (sdata->reserved_ready)
3221                        return 0;
3222
3223                return ieee80211_vif_use_reserved_context(sdata);
3224        }
3225
3226        if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
3227                                        &sdata->csa_chandef))
3228                return -EINVAL;
3229
3230        sdata->vif.csa_active = false;
3231
3232        err = ieee80211_set_after_csa_beacon(sdata, &changed);
3233        if (err)
3234                return err;
3235
3236        ieee80211_bss_info_change_notify(sdata, changed);
3237
3238        if (sdata->csa_block_tx) {
3239                ieee80211_wake_vif_queues(local, sdata,
3240                                          IEEE80211_QUEUE_STOP_REASON_CSA);
3241                sdata->csa_block_tx = false;
3242        }
3243
3244        err = drv_post_channel_switch(sdata);
3245        if (err)
3246                return err;
3247
3248        cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3249
3250        return 0;
3251}
3252
3253static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3254{
3255        if (__ieee80211_csa_finalize(sdata)) {
3256                sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3257                cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3258                                    GFP_KERNEL);
3259        }
3260}
3261
3262void ieee80211_csa_finalize_work(struct work_struct *work)
3263{
3264        struct ieee80211_sub_if_data *sdata =
3265                container_of(work, struct ieee80211_sub_if_data,
3266                             csa_finalize_work);
3267        struct ieee80211_local *local = sdata->local;
3268
3269        sdata_lock(sdata);
3270        mutex_lock(&local->mtx);
3271        mutex_lock(&local->chanctx_mtx);
3272
3273        /* AP might have been stopped while waiting for the lock. */
3274        if (!sdata->vif.csa_active)
3275                goto unlock;
3276
3277        if (!ieee80211_sdata_running(sdata))
3278                goto unlock;
3279
3280        ieee80211_csa_finalize(sdata);
3281
3282unlock:
3283        mutex_unlock(&local->chanctx_mtx);
3284        mutex_unlock(&local->mtx);
3285        sdata_unlock(sdata);
3286}
3287
3288static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3289                                    struct cfg80211_csa_settings *params,
3290                                    u32 *changed)
3291{
3292        struct ieee80211_csa_settings csa = {};
3293        int err;
3294
3295        switch (sdata->vif.type) {
3296        case NL80211_IFTYPE_AP:
3297                sdata->u.ap.next_beacon =
3298                        cfg80211_beacon_dup(&params->beacon_after);
3299                if (!sdata->u.ap.next_beacon)
3300                        return -ENOMEM;
3301
3302                /*
3303                 * With a count of 0, we don't have to wait for any
3304                 * TBTT before switching, so complete the CSA
3305                 * immediately.  In theory, with a count == 1 we
3306                 * should delay the switch until just before the next
3307                 * TBTT, but that would complicate things so we switch
3308                 * immediately too.  If we would delay the switch
3309                 * until the next TBTT, we would have to set the probe
3310                 * response here.
3311                 *
3312                 * TODO: A channel switch with count <= 1 without
3313                 * sending a CSA action frame is kind of useless,
3314                 * because the clients won't know we're changing
3315                 * channels.  The action frame must be implemented
3316                 * either here or in the userspace.
3317                 */
3318                if (params->count <= 1)
3319                        break;
3320
3321                if ((params->n_counter_offsets_beacon >
3322                     IEEE80211_MAX_CNTDWN_COUNTERS_NUM) ||
3323                    (params->n_counter_offsets_presp >
3324                     IEEE80211_MAX_CNTDWN_COUNTERS_NUM))
3325                        return -EINVAL;
3326
3327                csa.counter_offsets_beacon = params->counter_offsets_beacon;
3328                csa.counter_offsets_presp = params->counter_offsets_presp;
3329                csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3330                csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3331                csa.count = params->count;
3332
3333                err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa, NULL);
3334                if (err < 0) {
3335                        kfree(sdata->u.ap.next_beacon);
3336                        return err;
3337                }
3338                *changed |= err;
3339
3340                break;
3341        case NL80211_IFTYPE_ADHOC:
3342                if (!sdata->vif.bss_conf.ibss_joined)
3343                        return -EINVAL;
3344
3345                if (params->chandef.width != sdata->u.ibss.chandef.width)
3346                        return -EINVAL;
3347
3348                switch (params->chandef.width) {
3349                case NL80211_CHAN_WIDTH_40:
3350                        if (cfg80211_get_chandef_type(&params->chandef) !=
3351                            cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3352                                return -EINVAL;
3353                        break;
3354                case NL80211_CHAN_WIDTH_5:
3355                case NL80211_CHAN_WIDTH_10:
3356                case NL80211_CHAN_WIDTH_20_NOHT:
3357                case NL80211_CHAN_WIDTH_20:
3358                        break;
3359                default:
3360                        return -EINVAL;
3361                }
3362
3363                /* changes into another band are not supported */
3364                if (sdata->u.ibss.chandef.chan->band !=
3365                    params->chandef.chan->band)
3366                        return -EINVAL;
3367
3368                /* see comments in the NL80211_IFTYPE_AP block */
3369                if (params->count > 1) {
3370                        err = ieee80211_ibss_csa_beacon(sdata, params);
3371                        if (err < 0)
3372                                return err;
3373                        *changed |= err;
3374                }
3375
3376                ieee80211_send_action_csa(sdata, params);
3377
3378                break;
3379#ifdef CONFIG_MAC80211_MESH
3380        case NL80211_IFTYPE_MESH_POINT: {
3381                struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3382
3383                if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3384                        return -EINVAL;
3385
3386                /* changes into another band are not supported */
3387                if (sdata->vif.bss_conf.chandef.chan->band !=
3388                    params->chandef.chan->band)
3389                        return -EINVAL;
3390
3391                if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3392                        ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3393                        if (!ifmsh->pre_value)
3394                                ifmsh->pre_value = 1;
3395                        else
3396                                ifmsh->pre_value++;
3397                }
3398
3399                /* see comments in the NL80211_IFTYPE_AP block */
3400                if (params->count > 1) {
3401                        err = ieee80211_mesh_csa_beacon(sdata, params);
3402                        if (err < 0) {
3403                                ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3404                                return err;
3405                        }
3406                        *changed |= err;
3407                }
3408
3409                if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3410                        ieee80211_send_action_csa(sdata, params);
3411
3412                break;
3413                }
3414#endif
3415        default:
3416                return -EOPNOTSUPP;
3417        }
3418
3419        return 0;
3420}
3421
3422static void ieee80211_color_change_abort(struct ieee80211_sub_if_data  *sdata)
3423{
3424        sdata->vif.color_change_active = false;
3425        kfree(sdata->u.ap.next_beacon);
3426        sdata->u.ap.next_beacon = NULL;
3427
3428        cfg80211_color_change_aborted_notify(sdata->dev);
3429}
3430
3431static int
3432__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3433                           struct cfg80211_csa_settings *params)
3434{
3435        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3436        struct ieee80211_local *local = sdata->local;
3437        struct ieee80211_channel_switch ch_switch;
3438        struct ieee80211_chanctx_conf *conf;
3439        struct ieee80211_chanctx *chanctx;
3440        u32 changed = 0;
3441        int err;
3442
3443        sdata_assert_lock(sdata);
3444        lockdep_assert_held(&local->mtx);
3445
3446        if (!list_empty(&local->roc_list) || local->scanning)
3447                return -EBUSY;
3448
3449        if (sdata->wdev.cac_started)
3450                return -EBUSY;
3451
3452        if (cfg80211_chandef_identical(&params->chandef,
3453                                       &sdata->vif.bss_conf.chandef))
3454                return -EINVAL;
3455
3456        /* don't allow another channel switch if one is already active. */
3457        if (sdata->vif.csa_active)
3458                return -EBUSY;
3459
3460        mutex_lock(&local->chanctx_mtx);
3461        conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3462                                         lockdep_is_held(&local->chanctx_mtx));
3463        if (!conf) {
3464                err = -EBUSY;
3465                goto out;
3466        }
3467
3468        if (params->chandef.chan->freq_offset) {
3469                /* this may work, but is untested */
3470                err = -EOPNOTSUPP;
3471                goto out;
3472        }
3473
3474        chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3475
3476        ch_switch.timestamp = 0;
3477        ch_switch.device_timestamp = 0;
3478        ch_switch.block_tx = params->block_tx;
3479        ch_switch.chandef = params->chandef;
3480        ch_switch.count = params->count;
3481
3482        err = drv_pre_channel_switch(sdata, &ch_switch);
3483        if (err)
3484                goto out;
3485
3486        err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3487                                            chanctx->mode,
3488                                            params->radar_required);
3489        if (err)
3490                goto out;
3491
3492        /* if reservation is invalid then this will fail */
3493        err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3494        if (err) {
3495                ieee80211_vif_unreserve_chanctx(sdata);
3496                goto out;
3497        }
3498
3499        /* if there is a color change in progress, abort it */
3500        if (sdata->vif.color_change_active)
3501                ieee80211_color_change_abort(sdata);
3502
3503        err = ieee80211_set_csa_beacon(sdata, params, &changed);
3504        if (err) {
3505                ieee80211_vif_unreserve_chanctx(sdata);
3506                goto out;
3507        }
3508
3509        sdata->csa_chandef = params->chandef;
3510        sdata->csa_block_tx = params->block_tx;
3511        sdata->vif.csa_active = true;
3512
3513        if (sdata->csa_block_tx)
3514                ieee80211_stop_vif_queues(local, sdata,
3515                                          IEEE80211_QUEUE_STOP_REASON_CSA);
3516
3517        cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3518                                          params->count, params->block_tx);
3519
3520        if (changed) {
3521                ieee80211_bss_info_change_notify(sdata, changed);
3522                drv_channel_switch_beacon(sdata, &params->chandef);
3523        } else {
3524                /* if the beacon didn't change, we can finalize immediately */
3525                ieee80211_csa_finalize(sdata);
3526        }
3527
3528out:
3529        mutex_unlock(&local->chanctx_mtx);
3530        return err;
3531}
3532
3533int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3534                             struct cfg80211_csa_settings *params)
3535{
3536        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3537        struct ieee80211_local *local = sdata->local;
3538        int err;
3539
3540        mutex_lock(&local->mtx);
3541        err = __ieee80211_channel_switch(wiphy, dev, params);
3542        mutex_unlock(&local->mtx);
3543
3544        return err;
3545}
3546
3547u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3548{
3549        lockdep_assert_held(&local->mtx);
3550
3551        local->roc_cookie_counter++;
3552
3553        /* wow, you wrapped 64 bits ... more likely a bug */
3554        if (WARN_ON(local->roc_cookie_counter == 0))
3555                local->roc_cookie_counter++;
3556
3557        return local->roc_cookie_counter;
3558}
3559
3560int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3561                             u64 *cookie, gfp_t gfp)
3562{
3563        unsigned long spin_flags;
3564        struct sk_buff *ack_skb;
3565        int id;
3566
3567        ack_skb = skb_copy(skb, gfp);
3568        if (!ack_skb)
3569                return -ENOMEM;
3570
3571        spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3572        id = idr_alloc(&local->ack_status_frames, ack_skb,
3573                       1, 0x2000, GFP_ATOMIC);
3574        spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3575
3576        if (id < 0) {
3577                kfree_skb(ack_skb);
3578                return -ENOMEM;
3579        }
3580
3581        IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3582
3583        *cookie = ieee80211_mgmt_tx_cookie(local);
3584        IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3585
3586        return 0;
3587}
3588
3589static void
3590ieee80211_update_mgmt_frame_registrations(struct wiphy *wiphy,
3591                                          struct wireless_dev *wdev,
3592                                          struct mgmt_frame_regs *upd)
3593{
3594        struct ieee80211_local *local = wiphy_priv(wiphy);
3595        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3596        u32 preq_mask = BIT(IEEE80211_STYPE_PROBE_REQ >> 4);
3597        u32 action_mask = BIT(IEEE80211_STYPE_ACTION >> 4);
3598        bool global_change, intf_change;
3599
3600        global_change =
3601                (local->probe_req_reg != !!(upd->global_stypes & preq_mask)) ||
3602                (local->rx_mcast_action_reg !=
3603                 !!(upd->global_mcast_stypes & action_mask));
3604        local->probe_req_reg = upd->global_stypes & preq_mask;
3605        local->rx_mcast_action_reg = upd->global_mcast_stypes & action_mask;
3606
3607        intf_change = (sdata->vif.probe_req_reg !=
3608                       !!(upd->interface_stypes & preq_mask)) ||
3609                (sdata->vif.rx_mcast_action_reg !=
3610                 !!(upd->interface_mcast_stypes & action_mask));
3611        sdata->vif.probe_req_reg = upd->interface_stypes & preq_mask;
3612        sdata->vif.rx_mcast_action_reg =
3613                upd->interface_mcast_stypes & action_mask;
3614
3615        if (!local->open_count)
3616                return;
3617
3618        if (intf_change && ieee80211_sdata_running(sdata))
3619                drv_config_iface_filter(local, sdata,
3620                                        sdata->vif.probe_req_reg ?
3621                                                FIF_PROBE_REQ : 0,
3622                                        FIF_PROBE_REQ);
3623
3624        if (global_change)
3625                ieee80211_configure_filter(local);
3626}
3627
3628static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3629{
3630        struct ieee80211_local *local = wiphy_priv(wiphy);
3631
3632        if (local->started)
3633                return -EOPNOTSUPP;
3634
3635        return drv_set_antenna(local, tx_ant, rx_ant);
3636}
3637
3638static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3639{
3640        struct ieee80211_local *local = wiphy_priv(wiphy);
3641
3642        return drv_get_antenna(local, tx_ant, rx_ant);
3643}
3644
3645static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3646                                    struct net_device *dev,
3647                                    struct cfg80211_gtk_rekey_data *data)
3648{
3649        struct ieee80211_local *local = wiphy_priv(wiphy);
3650        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3651
3652        if (!local->ops->set_rekey_data)
3653                return -EOPNOTSUPP;
3654
3655        drv_set_rekey_data(local, sdata, data);
3656
3657        return 0;
3658}
3659
3660static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3661                                  const u8 *peer, u64 *cookie)
3662{
3663        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3664        struct ieee80211_local *local = sdata->local;
3665        struct ieee80211_qos_hdr *nullfunc;
3666        struct sk_buff *skb;
3667        int size = sizeof(*nullfunc);
3668        __le16 fc;
3669        bool qos;
3670        struct ieee80211_tx_info *info;
3671        struct sta_info *sta;
3672        struct ieee80211_chanctx_conf *chanctx_conf;
3673        enum nl80211_band band;
3674        int ret;
3675
3676        /* the lock is needed to assign the cookie later */
3677        mutex_lock(&local->mtx);
3678
3679        rcu_read_lock();
3680        chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3681        if (WARN_ON(!chanctx_conf)) {
3682                ret = -EINVAL;
3683                goto unlock;
3684        }
3685        band = chanctx_conf->def.chan->band;
3686        sta = sta_info_get_bss(sdata, peer);
3687        if (sta) {
3688                qos = sta->sta.wme;
3689        } else {
3690                ret = -ENOLINK;
3691                goto unlock;
3692        }
3693
3694        if (qos) {
3695                fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3696                                 IEEE80211_STYPE_QOS_NULLFUNC |
3697                                 IEEE80211_FCTL_FROMDS);
3698        } else {
3699                size -= 2;
3700                fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3701                                 IEEE80211_STYPE_NULLFUNC |
3702                                 IEEE80211_FCTL_FROMDS);
3703        }
3704
3705        skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3706        if (!skb) {
3707                ret = -ENOMEM;
3708                goto unlock;
3709        }
3710
3711        skb->dev = dev;
3712
3713        skb_reserve(skb, local->hw.extra_tx_headroom);
3714
3715        nullfunc = skb_put(skb, size);
3716        nullfunc->frame_control = fc;
3717        nullfunc->duration_id = 0;
3718        memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3719        memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3720        memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3721        nullfunc->seq_ctrl = 0;
3722
3723        info = IEEE80211_SKB_CB(skb);
3724
3725        info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3726                       IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3727        info->band = band;
3728
3729        skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3730        skb->priority = 7;
3731        if (qos)
3732                nullfunc->qos_ctrl = cpu_to_le16(7);
3733
3734        ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3735        if (ret) {
3736                kfree_skb(skb);
3737                goto unlock;
3738        }
3739
3740        local_bh_disable();
3741        ieee80211_xmit(sdata, sta, skb);
3742        local_bh_enable();
3743
3744        ret = 0;
3745unlock:
3746        rcu_read_unlock();
3747        mutex_unlock(&local->mtx);
3748
3749        return ret;
3750}
3751
3752static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3753                                     struct wireless_dev *wdev,
3754                                     struct cfg80211_chan_def *chandef)
3755{
3756        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3757        struct ieee80211_local *local = wiphy_priv(wiphy);
3758        struct ieee80211_chanctx_conf *chanctx_conf;
3759        int ret = -ENODATA;
3760
3761        rcu_read_lock();
3762        chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3763        if (chanctx_conf) {
3764                *chandef = sdata->vif.bss_conf.chandef;
3765                ret = 0;
3766        } else if (local->open_count > 0 &&
3767                   local->open_count == local->monitors &&
3768                   sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3769                if (local->use_chanctx)
3770                        *chandef = local->monitor_chandef;
3771                else
3772                        *chandef = local->_oper_chandef;
3773                ret = 0;
3774        }
3775        rcu_read_unlock();
3776
3777        return ret;
3778}
3779
3780#ifdef CONFIG_PM
3781static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3782{
3783        drv_set_wakeup(wiphy_priv(wiphy), enabled);
3784}
3785#endif
3786
3787static int ieee80211_set_qos_map(struct wiphy *wiphy,
3788                                 struct net_device *dev,
3789                                 struct cfg80211_qos_map *qos_map)
3790{
3791        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3792        struct mac80211_qos_map *new_qos_map, *old_qos_map;
3793
3794        if (qos_map) {
3795                new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3796                if (!new_qos_map)
3797                        return -ENOMEM;
3798                memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3799        } else {
3800                /* A NULL qos_map was passed to disable QoS mapping */
3801                new_qos_map = NULL;
3802        }
3803
3804        old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3805        rcu_assign_pointer(sdata->qos_map, new_qos_map);
3806        if (old_qos_map)
3807                kfree_rcu(old_qos_map, rcu_head);
3808
3809        return 0;
3810}
3811
3812static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3813                                      struct net_device *dev,
3814                                      struct cfg80211_chan_def *chandef)
3815{
3816        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3817        int ret;
3818        u32 changed = 0;
3819
3820        ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3821        if (ret == 0)
3822                ieee80211_bss_info_change_notify(sdata, changed);
3823
3824        return ret;
3825}
3826
3827static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3828                               u8 tsid, const u8 *peer, u8 up,
3829                               u16 admitted_time)
3830{
3831        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3832        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3833        int ac = ieee802_1d_to_ac[up];
3834
3835        if (sdata->vif.type != NL80211_IFTYPE_STATION)
3836                return -EOPNOTSUPP;
3837
3838        if (!(sdata->wmm_acm & BIT(up)))
3839                return -EINVAL;
3840
3841        if (ifmgd->tx_tspec[ac].admitted_time)
3842                return -EBUSY;
3843
3844        if (admitted_time) {
3845                ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3846                ifmgd->tx_tspec[ac].tsid = tsid;
3847                ifmgd->tx_tspec[ac].up = up;
3848        }
3849
3850        return 0;
3851}
3852
3853static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3854                               u8 tsid, const u8 *peer)
3855{
3856        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3857        struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3858        struct ieee80211_local *local = wiphy_priv(wiphy);
3859        int ac;
3860
3861        for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3862                struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3863
3864                /* skip unused entries */
3865                if (!tx_tspec->admitted_time)
3866                        continue;
3867
3868                if (tx_tspec->tsid != tsid)
3869                        continue;
3870
3871                /* due to this new packets will be reassigned to non-ACM ACs */
3872                tx_tspec->up = -1;
3873
3874                /* Make sure that all packets have been sent to avoid to
3875                 * restore the QoS params on packets that are still on the
3876                 * queues.
3877                 */
3878                synchronize_net();
3879                ieee80211_flush_queues(local, sdata, false);
3880
3881                /* restore the normal QoS parameters
3882                 * (unconditionally to avoid races)
3883                 */
3884                tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3885                tx_tspec->downgraded = false;
3886                ieee80211_sta_handle_tspec_ac_params(sdata);
3887
3888                /* finally clear all the data */
3889                memset(tx_tspec, 0, sizeof(*tx_tspec));
3890
3891                return 0;
3892        }
3893
3894        return -ENOENT;
3895}
3896
3897void ieee80211_nan_func_terminated(struct ieee80211_vif *vif,
3898                                   u8 inst_id,
3899                                   enum nl80211_nan_func_term_reason reason,
3900                                   gfp_t gfp)
3901{
3902        struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3903        struct cfg80211_nan_func *func;
3904        u64 cookie;
3905
3906        if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3907                return;
3908
3909        spin_lock_bh(&sdata->u.nan.func_lock);
3910
3911        func = idr_find(&sdata->u.nan.function_inst_ids, inst_id);
3912        if (WARN_ON(!func)) {
3913                spin_unlock_bh(&sdata->u.nan.func_lock);
3914                return;
3915        }
3916
3917        cookie = func->cookie;
3918        idr_remove(&sdata->u.nan.function_inst_ids, inst_id);
3919
3920        spin_unlock_bh(&sdata->u.nan.func_lock);
3921
3922        cfg80211_free_nan_func(func);
3923
3924        cfg80211_nan_func_terminated(ieee80211_vif_to_wdev(vif), inst_id,
3925                                     reason, cookie, gfp);
3926}
3927EXPORT_SYMBOL(ieee80211_nan_func_terminated);
3928
3929void ieee80211_nan_func_match(struct ieee80211_vif *vif,
3930                              struct cfg80211_nan_match_params *match,
3931                              gfp_t gfp)
3932{
3933        struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3934        struct cfg80211_nan_func *func;
3935
3936        if (WARN_ON(vif->type != NL80211_IFTYPE_NAN))
3937                return;
3938
3939        spin_lock_bh(&sdata->u.nan.func_lock);
3940
3941        func = idr_find(&sdata->u.nan.function_inst_ids,  match->inst_id);
3942        if (WARN_ON(!func)) {
3943                spin_unlock_bh(&sdata->u.nan.func_lock);
3944                return;
3945        }
3946        match->cookie = func->cookie;
3947
3948        spin_unlock_bh(&sdata->u.nan.func_lock);
3949
3950        cfg80211_nan_match(ieee80211_vif_to_wdev(vif), match, gfp);
3951}
3952EXPORT_SYMBOL(ieee80211_nan_func_match);
3953
3954static int ieee80211_set_multicast_to_unicast(struct wiphy *wiphy,
3955                                              struct net_device *dev,
3956                                              const bool enabled)
3957{
3958        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3959
3960        sdata->u.ap.multicast_to_unicast = enabled;
3961
3962        return 0;
3963}
3964
3965void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
3966                              struct txq_info *txqi)
3967{
3968        if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_BYTES))) {
3969                txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_BYTES);
3970                txqstats->backlog_bytes = txqi->tin.backlog_bytes;
3971        }
3972
3973        if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS))) {
3974                txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS);
3975                txqstats->backlog_packets = txqi->tin.backlog_packets;
3976        }
3977
3978        if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_FLOWS))) {
3979                txqstats->filled |= BIT(NL80211_TXQ_STATS_FLOWS);
3980                txqstats->flows = txqi->tin.flows;
3981        }
3982
3983        if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_DROPS))) {
3984                txqstats->filled |= BIT(NL80211_TXQ_STATS_DROPS);
3985                txqstats->drops = txqi->cstats.drop_count;
3986        }
3987
3988        if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_ECN_MARKS))) {
3989                txqstats->filled |= BIT(NL80211_TXQ_STATS_ECN_MARKS);
3990                txqstats->ecn_marks = txqi->cstats.ecn_mark;
3991        }
3992
3993        if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_OVERLIMIT))) {
3994                txqstats->filled |= BIT(NL80211_TXQ_STATS_OVERLIMIT);
3995                txqstats->overlimit = txqi->tin.overlimit;
3996        }
3997
3998        if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_COLLISIONS))) {
3999                txqstats->filled |= BIT(NL80211_TXQ_STATS_COLLISIONS);
4000                txqstats->collisions = txqi->tin.collisions;
4001        }
4002
4003        if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_BYTES))) {
4004                txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_BYTES);
4005                txqstats->tx_bytes = txqi->tin.tx_bytes;
4006        }
4007
4008        if (!(txqstats->filled & BIT(NL80211_TXQ_STATS_TX_PACKETS))) {
4009                txqstats->filled |= BIT(NL80211_TXQ_STATS_TX_PACKETS);
4010                txqstats->tx_packets = txqi->tin.tx_packets;
4011        }
4012}
4013
4014static int ieee80211_get_txq_stats(struct wiphy *wiphy,
4015                                   struct wireless_dev *wdev,
4016                                   struct cfg80211_txq_stats *txqstats)
4017{
4018        struct ieee80211_local *local = wiphy_priv(wiphy);
4019        struct ieee80211_sub_if_data *sdata;
4020        int ret = 0;
4021
4022        if (!local->ops->wake_tx_queue)
4023                return 1;
4024
4025        spin_lock_bh(&local->fq.lock);
4026        rcu_read_lock();
4027
4028        if (wdev) {
4029                sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
4030                if (!sdata->vif.txq) {
4031                        ret = 1;
4032                        goto out;
4033                }
4034                ieee80211_fill_txq_stats(txqstats, to_txq_info(sdata->vif.txq));
4035        } else {
4036                /* phy stats */
4037                txqstats->filled |= BIT(NL80211_TXQ_STATS_BACKLOG_PACKETS) |
4038                                    BIT(NL80211_TXQ_STATS_BACKLOG_BYTES) |
4039                                    BIT(NL80211_TXQ_STATS_OVERLIMIT) |
4040                                    BIT(NL80211_TXQ_STATS_OVERMEMORY) |
4041                                    BIT(NL80211_TXQ_STATS_COLLISIONS) |
4042                                    BIT(NL80211_TXQ_STATS_MAX_FLOWS);
4043                txqstats->backlog_packets = local->fq.backlog;
4044                txqstats->backlog_bytes = local->fq.memory_usage;
4045                txqstats->overlimit = local->fq.overlimit;
4046                txqstats->overmemory = local->fq.overmemory;
4047                txqstats->collisions = local->fq.collisions;
4048                txqstats->max_flows = local->fq.flows_cnt;
4049        }
4050
4051out:
4052        rcu_read_unlock();
4053        spin_unlock_bh(&local->fq.lock);
4054
4055        return ret;
4056}
4057
4058static int
4059ieee80211_get_ftm_responder_stats(struct wiphy *wiphy,
4060                                  struct net_device *dev,
4061                                  struct cfg80211_ftm_responder_stats *ftm_stats)
4062{
4063        struct ieee80211_local *local = wiphy_priv(wiphy);
4064        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4065
4066        return drv_get_ftm_responder_stats(local, sdata, ftm_stats);
4067}
4068
4069static int
4070ieee80211_start_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4071                     struct cfg80211_pmsr_request *request)
4072{
4073        struct ieee80211_local *local = wiphy_priv(wiphy);
4074        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4075
4076        return drv_start_pmsr(local, sdata, request);
4077}
4078
4079static void
4080ieee80211_abort_pmsr(struct wiphy *wiphy, struct wireless_dev *dev,
4081                     struct cfg80211_pmsr_request *request)
4082{
4083        struct ieee80211_local *local = wiphy_priv(wiphy);
4084        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(dev);
4085
4086        return drv_abort_pmsr(local, sdata, request);
4087}
4088
4089static int ieee80211_set_tid_config(struct wiphy *wiphy,
4090                                    struct net_device *dev,
4091                                    struct cfg80211_tid_config *tid_conf)
4092{
4093        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4094        struct sta_info *sta;
4095        int ret;
4096
4097        if (!sdata->local->ops->set_tid_config)
4098                return -EOPNOTSUPP;
4099
4100        if (!tid_conf->peer)
4101                return drv_set_tid_config(sdata->local, sdata, NULL, tid_conf);
4102
4103        mutex_lock(&sdata->local->sta_mtx);
4104        sta = sta_info_get_bss(sdata, tid_conf->peer);
4105        if (!sta) {
4106                mutex_unlock(&sdata->local->sta_mtx);
4107                return -ENOENT;
4108        }
4109
4110        ret = drv_set_tid_config(sdata->local, sdata, &sta->sta, tid_conf);
4111        mutex_unlock(&sdata->local->sta_mtx);
4112
4113        return ret;
4114}
4115
4116static int ieee80211_reset_tid_config(struct wiphy *wiphy,
4117                                      struct net_device *dev,
4118                                      const u8 *peer, u8 tids)
4119{
4120        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4121        struct sta_info *sta;
4122        int ret;
4123
4124        if (!sdata->local->ops->reset_tid_config)
4125                return -EOPNOTSUPP;
4126
4127        if (!peer)
4128                return drv_reset_tid_config(sdata->local, sdata, NULL, tids);
4129
4130        mutex_lock(&sdata->local->sta_mtx);
4131        sta = sta_info_get_bss(sdata, peer);
4132        if (!sta) {
4133                mutex_unlock(&sdata->local->sta_mtx);
4134                return -ENOENT;
4135        }
4136
4137        ret = drv_reset_tid_config(sdata->local, sdata, &sta->sta, tids);
4138        mutex_unlock(&sdata->local->sta_mtx);
4139
4140        return ret;
4141}
4142
4143static int ieee80211_set_sar_specs(struct wiphy *wiphy,
4144                                   struct cfg80211_sar_specs *sar)
4145{
4146        struct ieee80211_local *local = wiphy_priv(wiphy);
4147
4148        if (!local->ops->set_sar_specs)
4149                return -EOPNOTSUPP;
4150
4151        return local->ops->set_sar_specs(&local->hw, sar);
4152}
4153
4154static int
4155ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4156                                        u32 *changed)
4157{
4158        switch (sdata->vif.type) {
4159        case NL80211_IFTYPE_AP: {
4160                int ret;
4161
4162                ret = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
4163                                              NULL, NULL);
4164                kfree(sdata->u.ap.next_beacon);
4165                sdata->u.ap.next_beacon = NULL;
4166
4167                if (ret < 0)
4168                        return ret;
4169
4170                *changed |= ret;
4171                break;
4172        }
4173        default:
4174                WARN_ON_ONCE(1);
4175                return -EINVAL;
4176        }
4177
4178        return 0;
4179}
4180
4181static int
4182ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata,
4183                                  struct cfg80211_color_change_settings *params,
4184                                  u32 *changed)
4185{
4186        struct ieee80211_color_change_settings color_change = {};
4187        int err;
4188
4189        switch (sdata->vif.type) {
4190        case NL80211_IFTYPE_AP:
4191                sdata->u.ap.next_beacon =
4192                        cfg80211_beacon_dup(&params->beacon_next);
4193                if (!sdata->u.ap.next_beacon)
4194                        return -ENOMEM;
4195
4196                if (params->count <= 1)
4197                        break;
4198
4199                color_change.counter_offset_beacon =
4200                        params->counter_offset_beacon;
4201                color_change.counter_offset_presp =
4202                        params->counter_offset_presp;
4203                color_change.count = params->count;
4204
4205                err = ieee80211_assign_beacon(sdata, &params->beacon_color_change,
4206                                              NULL, &color_change);
4207                if (err < 0) {
4208                        kfree(sdata->u.ap.next_beacon);
4209                        return err;
4210                }
4211                *changed |= err;
4212                break;
4213        default:
4214                return -EOPNOTSUPP;
4215        }
4216
4217        return 0;
4218}
4219
4220static void
4221ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
4222                                         u8 color, int enable, u32 changed)
4223{
4224        sdata->vif.bss_conf.he_bss_color.color = color;
4225        sdata->vif.bss_conf.he_bss_color.enabled = enable;
4226        changed |= BSS_CHANGED_HE_BSS_COLOR;
4227
4228        ieee80211_bss_info_change_notify(sdata, changed);
4229}
4230
4231static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
4232{
4233        struct ieee80211_local *local = sdata->local;
4234        u32 changed = 0;
4235        int err;
4236
4237        sdata_assert_lock(sdata);
4238        lockdep_assert_held(&local->mtx);
4239
4240        sdata->vif.color_change_active = false;
4241
4242        err = ieee80211_set_after_color_change_beacon(sdata, &changed);
4243        if (err) {
4244                cfg80211_color_change_aborted_notify(sdata->dev);
4245                return err;
4246        }
4247
4248        ieee80211_color_change_bss_config_notify(sdata,
4249                                                 sdata->vif.color_change_color,
4250                                                 1, changed);
4251        cfg80211_color_change_notify(sdata->dev);
4252
4253        return 0;
4254}
4255
4256void ieee80211_color_change_finalize_work(struct work_struct *work)
4257{
4258        struct ieee80211_sub_if_data *sdata =
4259                container_of(work, struct ieee80211_sub_if_data,
4260                             color_change_finalize_work);
4261        struct ieee80211_local *local = sdata->local;
4262
4263        sdata_lock(sdata);
4264        mutex_lock(&local->mtx);
4265
4266        /* AP might have been stopped while waiting for the lock. */
4267        if (!sdata->vif.color_change_active)
4268                goto unlock;
4269
4270        if (!ieee80211_sdata_running(sdata))
4271                goto unlock;
4272
4273        ieee80211_color_change_finalize(sdata);
4274
4275unlock:
4276        mutex_unlock(&local->mtx);
4277        sdata_unlock(sdata);
4278}
4279
4280void ieee80211_color_change_finish(struct ieee80211_vif *vif)
4281{
4282        struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4283
4284        ieee80211_queue_work(&sdata->local->hw,
4285                             &sdata->color_change_finalize_work);
4286}
4287EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
4288
4289void
4290ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
4291                                       u64 color_bitmap)
4292{
4293        struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
4294
4295        if (sdata->vif.color_change_active || sdata->vif.csa_active)
4296                return;
4297
4298        cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap);
4299}
4300EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify);
4301
4302static int
4303ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
4304                       struct cfg80211_color_change_settings *params)
4305{
4306        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
4307        struct ieee80211_local *local = sdata->local;
4308        u32 changed = 0;
4309        int err;
4310
4311        sdata_assert_lock(sdata);
4312
4313        mutex_lock(&local->mtx);
4314
4315        /* don't allow another color change if one is already active or if csa
4316         * is active
4317         */
4318        if (sdata->vif.color_change_active || sdata->vif.csa_active) {
4319                err = -EBUSY;
4320                goto out;
4321        }
4322
4323        err = ieee80211_set_color_change_beacon(sdata, params, &changed);
4324        if (err)
4325                goto out;
4326
4327        sdata->vif.color_change_active = true;
4328        sdata->vif.color_change_color = params->color;
4329
4330        cfg80211_color_change_started_notify(sdata->dev, params->count);
4331
4332        if (changed)
4333                ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed);
4334        else
4335                /* if the beacon didn't change, we can finalize immediately */
4336                ieee80211_color_change_finalize(sdata);
4337
4338out:
4339        mutex_unlock(&local->mtx);
4340
4341        return err;
4342}
4343
4344const struct cfg80211_ops mac80211_config_ops = {
4345        .add_virtual_intf = ieee80211_add_iface,
4346        .del_virtual_intf = ieee80211_del_iface,
4347        .change_virtual_intf = ieee80211_change_iface,
4348        .start_p2p_device = ieee80211_start_p2p_device,
4349        .stop_p2p_device = ieee80211_stop_p2p_device,
4350        .add_key = ieee80211_add_key,
4351        .del_key = ieee80211_del_key,
4352        .get_key = ieee80211_get_key,
4353        .set_default_key = ieee80211_config_default_key,
4354        .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
4355        .set_default_beacon_key = ieee80211_config_default_beacon_key,
4356        .start_ap = ieee80211_start_ap,
4357        .change_beacon = ieee80211_change_beacon,
4358        .stop_ap = ieee80211_stop_ap,
4359        .add_station = ieee80211_add_station,
4360        .del_station = ieee80211_del_station,
4361        .change_station = ieee80211_change_station,
4362        .get_station = ieee80211_get_station,
4363        .dump_station = ieee80211_dump_station,
4364        .dump_survey = ieee80211_dump_survey,
4365#ifdef CONFIG_MAC80211_MESH
4366        .add_mpath = ieee80211_add_mpath,
4367        .del_mpath = ieee80211_del_mpath,
4368        .change_mpath = ieee80211_change_mpath,
4369        .get_mpath = ieee80211_get_mpath,
4370        .dump_mpath = ieee80211_dump_mpath,
4371        .get_mpp = ieee80211_get_mpp,
4372        .dump_mpp = ieee80211_dump_mpp,
4373        .update_mesh_config = ieee80211_update_mesh_config,
4374        .get_mesh_config = ieee80211_get_mesh_config,
4375        .join_mesh = ieee80211_join_mesh,
4376        .leave_mesh = ieee80211_leave_mesh,
4377#endif
4378        .join_ocb = ieee80211_join_ocb,
4379        .leave_ocb = ieee80211_leave_ocb,
4380        .change_bss = ieee80211_change_bss,
4381        .set_txq_params = ieee80211_set_txq_params,
4382        .set_monitor_channel = ieee80211_set_monitor_channel,
4383        .suspend = ieee80211_suspend,
4384        .resume = ieee80211_resume,
4385        .scan = ieee80211_scan,
4386        .abort_scan = ieee80211_abort_scan,
4387        .sched_scan_start = ieee80211_sched_scan_start,
4388        .sched_scan_stop = ieee80211_sched_scan_stop,
4389        .auth = ieee80211_auth,
4390        .assoc = ieee80211_assoc,
4391        .deauth = ieee80211_deauth,
4392        .disassoc = ieee80211_disassoc,
4393        .join_ibss = ieee80211_join_ibss,
4394        .leave_ibss = ieee80211_leave_ibss,
4395        .set_mcast_rate = ieee80211_set_mcast_rate,
4396        .set_wiphy_params = ieee80211_set_wiphy_params,
4397        .set_tx_power = ieee80211_set_tx_power,
4398        .get_tx_power = ieee80211_get_tx_power,
4399        .rfkill_poll = ieee80211_rfkill_poll,
4400        CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4401        CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4402        .set_power_mgmt = ieee80211_set_power_mgmt,
4403        .set_bitrate_mask = ieee80211_set_bitrate_mask,
4404        .remain_on_channel = ieee80211_remain_on_channel,
4405        .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4406        .mgmt_tx = ieee80211_mgmt_tx,
4407        .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4408        .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4409        .set_cqm_rssi_range_config = ieee80211_set_cqm_rssi_range_config,
4410        .update_mgmt_frame_registrations =
4411                ieee80211_update_mgmt_frame_registrations,
4412        .set_antenna = ieee80211_set_antenna,
4413        .get_antenna = ieee80211_get_antenna,
4414        .set_rekey_data = ieee80211_set_rekey_data,
4415        .tdls_oper = ieee80211_tdls_oper,
4416        .tdls_mgmt = ieee80211_tdls_mgmt,
4417        .tdls_channel_switch = ieee80211_tdls_channel_switch,
4418        .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
4419        .probe_client = ieee80211_probe_client,
4420        .set_noack_map = ieee80211_set_noack_map,
4421#ifdef CONFIG_PM
4422        .set_wakeup = ieee80211_set_wakeup,
4423#endif
4424        .get_channel = ieee80211_cfg_get_channel,
4425        .start_radar_detection = ieee80211_start_radar_detection,
4426        .end_cac = ieee80211_end_cac,
4427        .channel_switch = ieee80211_channel_switch,
4428        .set_qos_map = ieee80211_set_qos_map,
4429        .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4430        .add_tx_ts = ieee80211_add_tx_ts,
4431        .del_tx_ts = ieee80211_del_tx_ts,
4432        .start_nan = ieee80211_start_nan,
4433        .stop_nan = ieee80211_stop_nan,
4434        .nan_change_conf = ieee80211_nan_change_conf,
4435        .add_nan_func = ieee80211_add_nan_func,
4436        .del_nan_func = ieee80211_del_nan_func,
4437        .set_multicast_to_unicast = ieee80211_set_multicast_to_unicast,
4438        .tx_control_port = ieee80211_tx_control_port,
4439        .get_txq_stats = ieee80211_get_txq_stats,
4440        .get_ftm_responder_stats = ieee80211_get_ftm_responder_stats,
4441        .start_pmsr = ieee80211_start_pmsr,
4442        .abort_pmsr = ieee80211_abort_pmsr,
4443        .probe_mesh_link = ieee80211_probe_mesh_link,
4444        .set_tid_config = ieee80211_set_tid_config,
4445        .reset_tid_config = ieee80211_reset_tid_config,
4446        .set_sar_specs = ieee80211_set_sar_specs,
4447        .color_change = ieee80211_color_change,
4448};
4449