linux/net/mac80211/cfg.c
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   1/*
   2 * mac80211 configuration hooks for cfg80211
   3 *
   4 * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
   5 *
   6 * This file is GPLv2 as found in COPYING.
   7 */
   8
   9#include <linux/ieee80211.h>
  10#include <linux/nl80211.h>
  11#include <linux/rtnetlink.h>
  12#include <linux/slab.h>
  13#include <net/net_namespace.h>
  14#include <linux/rcupdate.h>
  15#include <linux/if_ether.h>
  16#include <net/cfg80211.h>
  17#include "ieee80211_i.h"
  18#include "driver-ops.h"
  19#include "cfg.h"
  20#include "rate.h"
  21#include "mesh.h"
  22
  23static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
  24                                                const char *name,
  25                                                enum nl80211_iftype type,
  26                                                u32 *flags,
  27                                                struct vif_params *params)
  28{
  29        struct ieee80211_local *local = wiphy_priv(wiphy);
  30        struct wireless_dev *wdev;
  31        struct ieee80211_sub_if_data *sdata;
  32        int err;
  33
  34        err = ieee80211_if_add(local, name, &wdev, type, params);
  35        if (err)
  36                return ERR_PTR(err);
  37
  38        if (type == NL80211_IFTYPE_MONITOR && flags) {
  39                sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
  40                sdata->u.mntr_flags = *flags;
  41        }
  42
  43        return wdev;
  44}
  45
  46static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
  47{
  48        ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
  49
  50        return 0;
  51}
  52
  53static int ieee80211_change_iface(struct wiphy *wiphy,
  54                                  struct net_device *dev,
  55                                  enum nl80211_iftype type, u32 *flags,
  56                                  struct vif_params *params)
  57{
  58        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
  59        int ret;
  60
  61        ret = ieee80211_if_change_type(sdata, type);
  62        if (ret)
  63                return ret;
  64
  65        if (type == NL80211_IFTYPE_AP_VLAN &&
  66            params && params->use_4addr == 0)
  67                RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
  68        else if (type == NL80211_IFTYPE_STATION &&
  69                 params && params->use_4addr >= 0)
  70                sdata->u.mgd.use_4addr = params->use_4addr;
  71
  72        if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
  73                struct ieee80211_local *local = sdata->local;
  74
  75                if (ieee80211_sdata_running(sdata)) {
  76                        /*
  77                         * Prohibit MONITOR_FLAG_COOK_FRAMES to be
  78                         * changed while the interface is up.
  79                         * Else we would need to add a lot of cruft
  80                         * to update everything:
  81                         *      cooked_mntrs, monitor and all fif_* counters
  82                         *      reconfigure hardware
  83                         */
  84                        if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
  85                            (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
  86                                return -EBUSY;
  87
  88                        ieee80211_adjust_monitor_flags(sdata, -1);
  89                        sdata->u.mntr_flags = *flags;
  90                        ieee80211_adjust_monitor_flags(sdata, 1);
  91
  92                        ieee80211_configure_filter(local);
  93                } else {
  94                        /*
  95                         * Because the interface is down, ieee80211_do_stop
  96                         * and ieee80211_do_open take care of "everything"
  97                         * mentioned in the comment above.
  98                         */
  99                        sdata->u.mntr_flags = *flags;
 100                }
 101        }
 102
 103        return 0;
 104}
 105
 106static int ieee80211_start_p2p_device(struct wiphy *wiphy,
 107                                      struct wireless_dev *wdev)
 108{
 109        return ieee80211_do_open(wdev, true);
 110}
 111
 112static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
 113                                      struct wireless_dev *wdev)
 114{
 115        ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
 116}
 117
 118static int ieee80211_set_noack_map(struct wiphy *wiphy,
 119                                  struct net_device *dev,
 120                                  u16 noack_map)
 121{
 122        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 123
 124        sdata->noack_map = noack_map;
 125        return 0;
 126}
 127
 128static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
 129                             u8 key_idx, bool pairwise, const u8 *mac_addr,
 130                             struct key_params *params)
 131{
 132        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 133        struct sta_info *sta = NULL;
 134        struct ieee80211_key *key;
 135        int err;
 136
 137        if (!ieee80211_sdata_running(sdata))
 138                return -ENETDOWN;
 139
 140        /* reject WEP and TKIP keys if WEP failed to initialize */
 141        switch (params->cipher) {
 142        case WLAN_CIPHER_SUITE_WEP40:
 143        case WLAN_CIPHER_SUITE_TKIP:
 144        case WLAN_CIPHER_SUITE_WEP104:
 145                if (IS_ERR(sdata->local->wep_tx_tfm))
 146                        return -EINVAL;
 147                break;
 148        default:
 149                break;
 150        }
 151
 152        key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
 153                                  params->key, params->seq_len, params->seq);
 154        if (IS_ERR(key))
 155                return PTR_ERR(key);
 156
 157        if (pairwise)
 158                key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
 159
 160        mutex_lock(&sdata->local->sta_mtx);
 161
 162        if (mac_addr) {
 163                if (ieee80211_vif_is_mesh(&sdata->vif))
 164                        sta = sta_info_get(sdata, mac_addr);
 165                else
 166                        sta = sta_info_get_bss(sdata, mac_addr);
 167                if (!sta) {
 168                        ieee80211_key_free(sdata->local, key);
 169                        err = -ENOENT;
 170                        goto out_unlock;
 171                }
 172        }
 173
 174        switch (sdata->vif.type) {
 175        case NL80211_IFTYPE_STATION:
 176                if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 177                        key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 178                break;
 179        case NL80211_IFTYPE_AP:
 180        case NL80211_IFTYPE_AP_VLAN:
 181                /* Keys without a station are used for TX only */
 182                if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
 183                        key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 184                break;
 185        case NL80211_IFTYPE_ADHOC:
 186                /* no MFP (yet) */
 187                break;
 188        case NL80211_IFTYPE_MESH_POINT:
 189#ifdef CONFIG_MAC80211_MESH
 190                if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
 191                        key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
 192                break;
 193#endif
 194        case NL80211_IFTYPE_WDS:
 195        case NL80211_IFTYPE_MONITOR:
 196        case NL80211_IFTYPE_P2P_DEVICE:
 197        case NL80211_IFTYPE_UNSPECIFIED:
 198        case NUM_NL80211_IFTYPES:
 199        case NL80211_IFTYPE_P2P_CLIENT:
 200        case NL80211_IFTYPE_P2P_GO:
 201                /* shouldn't happen */
 202                WARN_ON_ONCE(1);
 203                break;
 204        }
 205
 206        err = ieee80211_key_link(key, sdata, sta);
 207        if (err)
 208                ieee80211_key_free(sdata->local, key);
 209
 210 out_unlock:
 211        mutex_unlock(&sdata->local->sta_mtx);
 212
 213        return err;
 214}
 215
 216static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
 217                             u8 key_idx, bool pairwise, const u8 *mac_addr)
 218{
 219        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 220        struct ieee80211_local *local = sdata->local;
 221        struct sta_info *sta;
 222        struct ieee80211_key *key = NULL;
 223        int ret;
 224
 225        mutex_lock(&local->sta_mtx);
 226        mutex_lock(&local->key_mtx);
 227
 228        if (mac_addr) {
 229                ret = -ENOENT;
 230
 231                sta = sta_info_get_bss(sdata, mac_addr);
 232                if (!sta)
 233                        goto out_unlock;
 234
 235                if (pairwise)
 236                        key = key_mtx_dereference(local, sta->ptk);
 237                else
 238                        key = key_mtx_dereference(local, sta->gtk[key_idx]);
 239        } else
 240                key = key_mtx_dereference(local, sdata->keys[key_idx]);
 241
 242        if (!key) {
 243                ret = -ENOENT;
 244                goto out_unlock;
 245        }
 246
 247        __ieee80211_key_free(key);
 248
 249        ret = 0;
 250 out_unlock:
 251        mutex_unlock(&local->key_mtx);
 252        mutex_unlock(&local->sta_mtx);
 253
 254        return ret;
 255}
 256
 257static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
 258                             u8 key_idx, bool pairwise, const u8 *mac_addr,
 259                             void *cookie,
 260                             void (*callback)(void *cookie,
 261                                              struct key_params *params))
 262{
 263        struct ieee80211_sub_if_data *sdata;
 264        struct sta_info *sta = NULL;
 265        u8 seq[6] = {0};
 266        struct key_params params;
 267        struct ieee80211_key *key = NULL;
 268        u64 pn64;
 269        u32 iv32;
 270        u16 iv16;
 271        int err = -ENOENT;
 272
 273        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 274
 275        rcu_read_lock();
 276
 277        if (mac_addr) {
 278                sta = sta_info_get_bss(sdata, mac_addr);
 279                if (!sta)
 280                        goto out;
 281
 282                if (pairwise)
 283                        key = rcu_dereference(sta->ptk);
 284                else if (key_idx < NUM_DEFAULT_KEYS)
 285                        key = rcu_dereference(sta->gtk[key_idx]);
 286        } else
 287                key = rcu_dereference(sdata->keys[key_idx]);
 288
 289        if (!key)
 290                goto out;
 291
 292        memset(&params, 0, sizeof(params));
 293
 294        params.cipher = key->conf.cipher;
 295
 296        switch (key->conf.cipher) {
 297        case WLAN_CIPHER_SUITE_TKIP:
 298                iv32 = key->u.tkip.tx.iv32;
 299                iv16 = key->u.tkip.tx.iv16;
 300
 301                if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
 302                        drv_get_tkip_seq(sdata->local,
 303                                         key->conf.hw_key_idx,
 304                                         &iv32, &iv16);
 305
 306                seq[0] = iv16 & 0xff;
 307                seq[1] = (iv16 >> 8) & 0xff;
 308                seq[2] = iv32 & 0xff;
 309                seq[3] = (iv32 >> 8) & 0xff;
 310                seq[4] = (iv32 >> 16) & 0xff;
 311                seq[5] = (iv32 >> 24) & 0xff;
 312                params.seq = seq;
 313                params.seq_len = 6;
 314                break;
 315        case WLAN_CIPHER_SUITE_CCMP:
 316                pn64 = atomic64_read(&key->u.ccmp.tx_pn);
 317                seq[0] = pn64;
 318                seq[1] = pn64 >> 8;
 319                seq[2] = pn64 >> 16;
 320                seq[3] = pn64 >> 24;
 321                seq[4] = pn64 >> 32;
 322                seq[5] = pn64 >> 40;
 323                params.seq = seq;
 324                params.seq_len = 6;
 325                break;
 326        case WLAN_CIPHER_SUITE_AES_CMAC:
 327                pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
 328                seq[0] = pn64;
 329                seq[1] = pn64 >> 8;
 330                seq[2] = pn64 >> 16;
 331                seq[3] = pn64 >> 24;
 332                seq[4] = pn64 >> 32;
 333                seq[5] = pn64 >> 40;
 334                params.seq = seq;
 335                params.seq_len = 6;
 336                break;
 337        }
 338
 339        params.key = key->conf.key;
 340        params.key_len = key->conf.keylen;
 341
 342        callback(cookie, &params);
 343        err = 0;
 344
 345 out:
 346        rcu_read_unlock();
 347        return err;
 348}
 349
 350static int ieee80211_config_default_key(struct wiphy *wiphy,
 351                                        struct net_device *dev,
 352                                        u8 key_idx, bool uni,
 353                                        bool multi)
 354{
 355        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 356
 357        ieee80211_set_default_key(sdata, key_idx, uni, multi);
 358
 359        return 0;
 360}
 361
 362static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
 363                                             struct net_device *dev,
 364                                             u8 key_idx)
 365{
 366        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 367
 368        ieee80211_set_default_mgmt_key(sdata, key_idx);
 369
 370        return 0;
 371}
 372
 373static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
 374{
 375        if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
 376                struct ieee80211_supported_band *sband;
 377                sband = sta->local->hw.wiphy->bands[
 378                                sta->local->oper_channel->band];
 379                rate->legacy = sband->bitrates[idx].bitrate;
 380        } else
 381                rate->mcs = idx;
 382}
 383
 384void sta_set_rate_info_tx(struct sta_info *sta,
 385                          const struct ieee80211_tx_rate *rate,
 386                          struct rate_info *rinfo)
 387{
 388        rinfo->flags = 0;
 389        if (rate->flags & IEEE80211_TX_RC_MCS)
 390                rinfo->flags |= RATE_INFO_FLAGS_MCS;
 391        if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
 392                rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 393        if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
 394                rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
 395        rate_idx_to_bitrate(rinfo, sta, rate->idx);
 396}
 397
 398static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
 399{
 400        struct ieee80211_sub_if_data *sdata = sta->sdata;
 401        struct ieee80211_local *local = sdata->local;
 402        struct timespec uptime;
 403
 404        sinfo->generation = sdata->local->sta_generation;
 405
 406        sinfo->filled = STATION_INFO_INACTIVE_TIME |
 407                        STATION_INFO_RX_BYTES |
 408                        STATION_INFO_TX_BYTES |
 409                        STATION_INFO_RX_PACKETS |
 410                        STATION_INFO_TX_PACKETS |
 411                        STATION_INFO_TX_RETRIES |
 412                        STATION_INFO_TX_FAILED |
 413                        STATION_INFO_TX_BITRATE |
 414                        STATION_INFO_RX_BITRATE |
 415                        STATION_INFO_RX_DROP_MISC |
 416                        STATION_INFO_BSS_PARAM |
 417                        STATION_INFO_CONNECTED_TIME |
 418                        STATION_INFO_STA_FLAGS |
 419                        STATION_INFO_BEACON_LOSS_COUNT;
 420
 421        do_posix_clock_monotonic_gettime(&uptime);
 422        sinfo->connected_time = uptime.tv_sec - sta->last_connected;
 423
 424        sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
 425        sinfo->rx_bytes = sta->rx_bytes;
 426        sinfo->tx_bytes = sta->tx_bytes;
 427        sinfo->rx_packets = sta->rx_packets;
 428        sinfo->tx_packets = sta->tx_packets;
 429        sinfo->tx_retries = sta->tx_retry_count;
 430        sinfo->tx_failed = sta->tx_retry_failed;
 431        sinfo->rx_dropped_misc = sta->rx_dropped;
 432        sinfo->beacon_loss_count = sta->beacon_loss_count;
 433
 434        if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
 435            (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
 436                sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
 437                if (!local->ops->get_rssi ||
 438                    drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
 439                        sinfo->signal = (s8)sta->last_signal;
 440                sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
 441        }
 442
 443        sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
 444
 445        sinfo->rxrate.flags = 0;
 446        if (sta->last_rx_rate_flag & RX_FLAG_HT)
 447                sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
 448        if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
 449                sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
 450        if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
 451                sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
 452        rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
 453
 454        if (ieee80211_vif_is_mesh(&sdata->vif)) {
 455#ifdef CONFIG_MAC80211_MESH
 456                sinfo->filled |= STATION_INFO_LLID |
 457                                 STATION_INFO_PLID |
 458                                 STATION_INFO_PLINK_STATE;
 459
 460                sinfo->llid = le16_to_cpu(sta->llid);
 461                sinfo->plid = le16_to_cpu(sta->plid);
 462                sinfo->plink_state = sta->plink_state;
 463                if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
 464                        sinfo->filled |= STATION_INFO_T_OFFSET;
 465                        sinfo->t_offset = sta->t_offset;
 466                }
 467#endif
 468        }
 469
 470        sinfo->bss_param.flags = 0;
 471        if (sdata->vif.bss_conf.use_cts_prot)
 472                sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
 473        if (sdata->vif.bss_conf.use_short_preamble)
 474                sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
 475        if (sdata->vif.bss_conf.use_short_slot)
 476                sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
 477        sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
 478        sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
 479
 480        sinfo->sta_flags.set = 0;
 481        sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
 482                                BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
 483                                BIT(NL80211_STA_FLAG_WME) |
 484                                BIT(NL80211_STA_FLAG_MFP) |
 485                                BIT(NL80211_STA_FLAG_AUTHENTICATED) |
 486                                BIT(NL80211_STA_FLAG_TDLS_PEER);
 487        if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
 488                sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
 489        if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
 490                sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
 491        if (test_sta_flag(sta, WLAN_STA_WME))
 492                sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
 493        if (test_sta_flag(sta, WLAN_STA_MFP))
 494                sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
 495        if (test_sta_flag(sta, WLAN_STA_AUTH))
 496                sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
 497        if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
 498                sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
 499}
 500
 501static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
 502        "rx_packets", "rx_bytes", "wep_weak_iv_count",
 503        "rx_duplicates", "rx_fragments", "rx_dropped",
 504        "tx_packets", "tx_bytes", "tx_fragments",
 505        "tx_filtered", "tx_retry_failed", "tx_retries",
 506        "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
 507        "channel", "noise", "ch_time", "ch_time_busy",
 508        "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
 509};
 510#define STA_STATS_LEN   ARRAY_SIZE(ieee80211_gstrings_sta_stats)
 511
 512static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
 513                                       struct net_device *dev,
 514                                       int sset)
 515{
 516        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 517        int rv = 0;
 518
 519        if (sset == ETH_SS_STATS)
 520                rv += STA_STATS_LEN;
 521
 522        rv += drv_get_et_sset_count(sdata, sset);
 523
 524        if (rv == 0)
 525                return -EOPNOTSUPP;
 526        return rv;
 527}
 528
 529static void ieee80211_get_et_stats(struct wiphy *wiphy,
 530                                   struct net_device *dev,
 531                                   struct ethtool_stats *stats,
 532                                   u64 *data)
 533{
 534        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 535        struct sta_info *sta;
 536        struct ieee80211_local *local = sdata->local;
 537        struct station_info sinfo;
 538        struct survey_info survey;
 539        int i, q;
 540#define STA_STATS_SURVEY_LEN 7
 541
 542        memset(data, 0, sizeof(u64) * STA_STATS_LEN);
 543
 544#define ADD_STA_STATS(sta)                              \
 545        do {                                            \
 546                data[i++] += sta->rx_packets;           \
 547                data[i++] += sta->rx_bytes;             \
 548                data[i++] += sta->wep_weak_iv_count;    \
 549                data[i++] += sta->num_duplicates;       \
 550                data[i++] += sta->rx_fragments;         \
 551                data[i++] += sta->rx_dropped;           \
 552                                                        \
 553                data[i++] += sta->tx_packets;           \
 554                data[i++] += sta->tx_bytes;             \
 555                data[i++] += sta->tx_fragments;         \
 556                data[i++] += sta->tx_filtered_count;    \
 557                data[i++] += sta->tx_retry_failed;      \
 558                data[i++] += sta->tx_retry_count;       \
 559                data[i++] += sta->beacon_loss_count;    \
 560        } while (0)
 561
 562        /* For Managed stations, find the single station based on BSSID
 563         * and use that.  For interface types, iterate through all available
 564         * stations and add stats for any station that is assigned to this
 565         * network device.
 566         */
 567
 568        mutex_lock(&local->sta_mtx);
 569
 570        if (sdata->vif.type == NL80211_IFTYPE_STATION) {
 571                sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
 572
 573                if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
 574                        goto do_survey;
 575
 576                i = 0;
 577                ADD_STA_STATS(sta);
 578
 579                data[i++] = sta->sta_state;
 580
 581                sinfo.filled = 0;
 582                sta_set_sinfo(sta, &sinfo);
 583
 584                if (sinfo.filled & STATION_INFO_TX_BITRATE)
 585                        data[i] = 100000 *
 586                                cfg80211_calculate_bitrate(&sinfo.txrate);
 587                i++;
 588                if (sinfo.filled & STATION_INFO_RX_BITRATE)
 589                        data[i] = 100000 *
 590                                cfg80211_calculate_bitrate(&sinfo.rxrate);
 591                i++;
 592
 593                if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
 594                        data[i] = (u8)sinfo.signal_avg;
 595                i++;
 596        } else {
 597                list_for_each_entry(sta, &local->sta_list, list) {
 598                        /* Make sure this station belongs to the proper dev */
 599                        if (sta->sdata->dev != dev)
 600                                continue;
 601
 602                        i = 0;
 603                        ADD_STA_STATS(sta);
 604                }
 605        }
 606
 607do_survey:
 608        i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
 609        /* Get survey stats for current channel */
 610        q = 0;
 611        while (true) {
 612                survey.filled = 0;
 613                if (drv_get_survey(local, q, &survey) != 0) {
 614                        survey.filled = 0;
 615                        break;
 616                }
 617
 618                if (survey.channel &&
 619                    (local->oper_channel->center_freq ==
 620                     survey.channel->center_freq))
 621                        break;
 622                q++;
 623        }
 624
 625        if (survey.filled)
 626                data[i++] = survey.channel->center_freq;
 627        else
 628                data[i++] = 0;
 629        if (survey.filled & SURVEY_INFO_NOISE_DBM)
 630                data[i++] = (u8)survey.noise;
 631        else
 632                data[i++] = -1LL;
 633        if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
 634                data[i++] = survey.channel_time;
 635        else
 636                data[i++] = -1LL;
 637        if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
 638                data[i++] = survey.channel_time_busy;
 639        else
 640                data[i++] = -1LL;
 641        if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
 642                data[i++] = survey.channel_time_ext_busy;
 643        else
 644                data[i++] = -1LL;
 645        if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
 646                data[i++] = survey.channel_time_rx;
 647        else
 648                data[i++] = -1LL;
 649        if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
 650                data[i++] = survey.channel_time_tx;
 651        else
 652                data[i++] = -1LL;
 653
 654        mutex_unlock(&local->sta_mtx);
 655
 656        if (WARN_ON(i != STA_STATS_LEN))
 657                return;
 658
 659        drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
 660}
 661
 662static void ieee80211_get_et_strings(struct wiphy *wiphy,
 663                                     struct net_device *dev,
 664                                     u32 sset, u8 *data)
 665{
 666        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 667        int sz_sta_stats = 0;
 668
 669        if (sset == ETH_SS_STATS) {
 670                sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
 671                memcpy(data, *ieee80211_gstrings_sta_stats, sz_sta_stats);
 672        }
 673        drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
 674}
 675
 676static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
 677                                 int idx, u8 *mac, struct station_info *sinfo)
 678{
 679        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 680        struct ieee80211_local *local = sdata->local;
 681        struct sta_info *sta;
 682        int ret = -ENOENT;
 683
 684        mutex_lock(&local->sta_mtx);
 685
 686        sta = sta_info_get_by_idx(sdata, idx);
 687        if (sta) {
 688                ret = 0;
 689                memcpy(mac, sta->sta.addr, ETH_ALEN);
 690                sta_set_sinfo(sta, sinfo);
 691        }
 692
 693        mutex_unlock(&local->sta_mtx);
 694
 695        return ret;
 696}
 697
 698static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
 699                                 int idx, struct survey_info *survey)
 700{
 701        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 702
 703        return drv_get_survey(local, idx, survey);
 704}
 705
 706static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
 707                                 u8 *mac, struct station_info *sinfo)
 708{
 709        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 710        struct ieee80211_local *local = sdata->local;
 711        struct sta_info *sta;
 712        int ret = -ENOENT;
 713
 714        mutex_lock(&local->sta_mtx);
 715
 716        sta = sta_info_get_bss(sdata, mac);
 717        if (sta) {
 718                ret = 0;
 719                sta_set_sinfo(sta, sinfo);
 720        }
 721
 722        mutex_unlock(&local->sta_mtx);
 723
 724        return ret;
 725}
 726
 727static int ieee80211_set_channel(struct wiphy *wiphy,
 728                                 struct net_device *netdev,
 729                                 struct ieee80211_channel *chan,
 730                                 enum nl80211_channel_type channel_type)
 731{
 732        struct ieee80211_local *local = wiphy_priv(wiphy);
 733        struct ieee80211_sub_if_data *sdata = NULL;
 734
 735        if (netdev)
 736                sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
 737
 738        switch (ieee80211_get_channel_mode(local, NULL)) {
 739        case CHAN_MODE_HOPPING:
 740                return -EBUSY;
 741        case CHAN_MODE_FIXED:
 742                if (local->oper_channel != chan ||
 743                    (!sdata && local->_oper_channel_type != channel_type))
 744                        return -EBUSY;
 745                if (!sdata && local->_oper_channel_type == channel_type)
 746                        return 0;
 747                break;
 748        case CHAN_MODE_UNDEFINED:
 749                break;
 750        }
 751
 752        if (!ieee80211_set_channel_type(local, sdata, channel_type))
 753                return -EBUSY;
 754
 755        local->oper_channel = chan;
 756
 757        /* auto-detects changes */
 758        ieee80211_hw_config(local, 0);
 759
 760        return 0;
 761}
 762
 763static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
 764                                         struct ieee80211_channel *chan,
 765                                         enum nl80211_channel_type channel_type)
 766{
 767        return ieee80211_set_channel(wiphy, NULL, chan, channel_type);
 768}
 769
 770static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
 771                                    const u8 *resp, size_t resp_len)
 772{
 773        struct probe_resp *new, *old;
 774
 775        if (!resp || !resp_len)
 776                return 1;
 777
 778        old = rtnl_dereference(sdata->u.ap.probe_resp);
 779
 780        new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
 781        if (!new)
 782                return -ENOMEM;
 783
 784        new->len = resp_len;
 785        memcpy(new->data, resp, resp_len);
 786
 787        rcu_assign_pointer(sdata->u.ap.probe_resp, new);
 788        if (old)
 789                kfree_rcu(old, rcu_head);
 790
 791        return 0;
 792}
 793
 794static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
 795                                   struct cfg80211_beacon_data *params)
 796{
 797        struct beacon_data *new, *old;
 798        int new_head_len, new_tail_len;
 799        int size, err;
 800        u32 changed = BSS_CHANGED_BEACON;
 801
 802        old = rtnl_dereference(sdata->u.ap.beacon);
 803
 804        /* Need to have a beacon head if we don't have one yet */
 805        if (!params->head && !old)
 806                return -EINVAL;
 807
 808        /* new or old head? */
 809        if (params->head)
 810                new_head_len = params->head_len;
 811        else
 812                new_head_len = old->head_len;
 813
 814        /* new or old tail? */
 815        if (params->tail || !old)
 816                /* params->tail_len will be zero for !params->tail */
 817                new_tail_len = params->tail_len;
 818        else
 819                new_tail_len = old->tail_len;
 820
 821        size = sizeof(*new) + new_head_len + new_tail_len;
 822
 823        new = kzalloc(size, GFP_KERNEL);
 824        if (!new)
 825                return -ENOMEM;
 826
 827        /* start filling the new info now */
 828
 829        /*
 830         * pointers go into the block we allocated,
 831         * memory is | beacon_data | head | tail |
 832         */
 833        new->head = ((u8 *) new) + sizeof(*new);
 834        new->tail = new->head + new_head_len;
 835        new->head_len = new_head_len;
 836        new->tail_len = new_tail_len;
 837
 838        /* copy in head */
 839        if (params->head)
 840                memcpy(new->head, params->head, new_head_len);
 841        else
 842                memcpy(new->head, old->head, new_head_len);
 843
 844        /* copy in optional tail */
 845        if (params->tail)
 846                memcpy(new->tail, params->tail, new_tail_len);
 847        else
 848                if (old)
 849                        memcpy(new->tail, old->tail, new_tail_len);
 850
 851        err = ieee80211_set_probe_resp(sdata, params->probe_resp,
 852                                       params->probe_resp_len);
 853        if (err < 0)
 854                return err;
 855        if (err == 0)
 856                changed |= BSS_CHANGED_AP_PROBE_RESP;
 857
 858        rcu_assign_pointer(sdata->u.ap.beacon, new);
 859
 860        if (old)
 861                kfree_rcu(old, rcu_head);
 862
 863        return changed;
 864}
 865
 866static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
 867                              struct cfg80211_ap_settings *params)
 868{
 869        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 870        struct beacon_data *old;
 871        struct ieee80211_sub_if_data *vlan;
 872        u32 changed = BSS_CHANGED_BEACON_INT |
 873                      BSS_CHANGED_BEACON_ENABLED |
 874                      BSS_CHANGED_BEACON |
 875                      BSS_CHANGED_SSID;
 876        int err;
 877
 878        old = rtnl_dereference(sdata->u.ap.beacon);
 879        if (old)
 880                return -EALREADY;
 881
 882        err = ieee80211_set_channel(wiphy, dev, params->channel,
 883                                    params->channel_type);
 884        if (err)
 885                return err;
 886
 887        /*
 888         * Apply control port protocol, this allows us to
 889         * not encrypt dynamic WEP control frames.
 890         */
 891        sdata->control_port_protocol = params->crypto.control_port_ethertype;
 892        sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
 893        list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
 894                vlan->control_port_protocol =
 895                        params->crypto.control_port_ethertype;
 896                vlan->control_port_no_encrypt =
 897                        params->crypto.control_port_no_encrypt;
 898        }
 899
 900        sdata->vif.bss_conf.beacon_int = params->beacon_interval;
 901        sdata->vif.bss_conf.dtim_period = params->dtim_period;
 902
 903        sdata->vif.bss_conf.ssid_len = params->ssid_len;
 904        if (params->ssid_len)
 905                memcpy(sdata->vif.bss_conf.ssid, params->ssid,
 906                       params->ssid_len);
 907        sdata->vif.bss_conf.hidden_ssid =
 908                (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
 909
 910        err = ieee80211_assign_beacon(sdata, &params->beacon);
 911        if (err < 0)
 912                return err;
 913        changed |= err;
 914
 915        ieee80211_bss_info_change_notify(sdata, changed);
 916
 917        netif_carrier_on(dev);
 918        list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
 919                netif_carrier_on(vlan->dev);
 920
 921        return 0;
 922}
 923
 924static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
 925                                   struct cfg80211_beacon_data *params)
 926{
 927        struct ieee80211_sub_if_data *sdata;
 928        struct beacon_data *old;
 929        int err;
 930
 931        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 932
 933        old = rtnl_dereference(sdata->u.ap.beacon);
 934        if (!old)
 935                return -ENOENT;
 936
 937        err = ieee80211_assign_beacon(sdata, params);
 938        if (err < 0)
 939                return err;
 940        ieee80211_bss_info_change_notify(sdata, err);
 941        return 0;
 942}
 943
 944static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 945{
 946        struct ieee80211_sub_if_data *sdata, *vlan;
 947        struct beacon_data *old;
 948
 949        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 950
 951        old = rtnl_dereference(sdata->u.ap.beacon);
 952        if (!old)
 953                return -ENOENT;
 954
 955        list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
 956                netif_carrier_off(vlan->dev);
 957        netif_carrier_off(dev);
 958
 959        RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
 960
 961        kfree_rcu(old, rcu_head);
 962
 963        sta_info_flush(sdata->local, sdata);
 964        ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
 965
 966        return 0;
 967}
 968
 969/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
 970struct iapp_layer2_update {
 971        u8 da[ETH_ALEN];        /* broadcast */
 972        u8 sa[ETH_ALEN];        /* STA addr */
 973        __be16 len;             /* 6 */
 974        u8 dsap;                /* 0 */
 975        u8 ssap;                /* 0 */
 976        u8 control;
 977        u8 xid_info[3];
 978} __packed;
 979
 980static void ieee80211_send_layer2_update(struct sta_info *sta)
 981{
 982        struct iapp_layer2_update *msg;
 983        struct sk_buff *skb;
 984
 985        /* Send Level 2 Update Frame to update forwarding tables in layer 2
 986         * bridge devices */
 987
 988        skb = dev_alloc_skb(sizeof(*msg));
 989        if (!skb)
 990                return;
 991        msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
 992
 993        /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
 994         * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
 995
 996        eth_broadcast_addr(msg->da);
 997        memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
 998        msg->len = htons(6);
 999        msg->dsap = 0;
1000        msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
1001        msg->control = 0xaf;    /* XID response lsb.1111F101.
1002                                 * F=0 (no poll command; unsolicited frame) */
1003        msg->xid_info[0] = 0x81;        /* XID format identifier */
1004        msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
1005        msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
1006
1007        skb->dev = sta->sdata->dev;
1008        skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1009        memset(skb->cb, 0, sizeof(skb->cb));
1010        netif_rx_ni(skb);
1011}
1012
1013static int sta_apply_parameters(struct ieee80211_local *local,
1014                                struct sta_info *sta,
1015                                struct station_parameters *params)
1016{
1017        int ret = 0;
1018        u32 rates;
1019        int i, j;
1020        struct ieee80211_supported_band *sband;
1021        struct ieee80211_sub_if_data *sdata = sta->sdata;
1022        u32 mask, set;
1023
1024        sband = local->hw.wiphy->bands[local->oper_channel->band];
1025
1026        mask = params->sta_flags_mask;
1027        set = params->sta_flags_set;
1028
1029        /*
1030         * In mesh mode, we can clear AUTHENTICATED flag but must
1031         * also make ASSOCIATED follow appropriately for the driver
1032         * API. See also below, after AUTHORIZED changes.
1033         */
1034        if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
1035                /* cfg80211 should not allow this in non-mesh modes */
1036                if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
1037                        return -EINVAL;
1038
1039                if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1040                    !test_sta_flag(sta, WLAN_STA_AUTH)) {
1041                        ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1042                        if (ret)
1043                                return ret;
1044                        ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1045                        if (ret)
1046                                return ret;
1047                }
1048        }
1049
1050        if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1051                if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1052                        ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1053                else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1054                        ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1055                if (ret)
1056                        return ret;
1057        }
1058
1059        if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
1060                /* cfg80211 should not allow this in non-mesh modes */
1061                if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
1062                        return -EINVAL;
1063
1064                if (!(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1065                    test_sta_flag(sta, WLAN_STA_AUTH)) {
1066                        ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1067                        if (ret)
1068                                return ret;
1069                        ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1070                        if (ret)
1071                                return ret;
1072                }
1073        }
1074
1075
1076        if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1077                if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1078                        set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1079                else
1080                        clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1081        }
1082
1083        if (mask & BIT(NL80211_STA_FLAG_WME)) {
1084                if (set & BIT(NL80211_STA_FLAG_WME)) {
1085                        set_sta_flag(sta, WLAN_STA_WME);
1086                        sta->sta.wme = true;
1087                } else {
1088                        clear_sta_flag(sta, WLAN_STA_WME);
1089                        sta->sta.wme = false;
1090                }
1091        }
1092
1093        if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1094                if (set & BIT(NL80211_STA_FLAG_MFP))
1095                        set_sta_flag(sta, WLAN_STA_MFP);
1096                else
1097                        clear_sta_flag(sta, WLAN_STA_MFP);
1098        }
1099
1100        if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1101                if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1102                        set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1103                else
1104                        clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1105        }
1106
1107        if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1108                sta->sta.uapsd_queues = params->uapsd_queues;
1109                sta->sta.max_sp = params->max_sp;
1110        }
1111
1112        /*
1113         * cfg80211 validates this (1-2007) and allows setting the AID
1114         * only when creating a new station entry
1115         */
1116        if (params->aid)
1117                sta->sta.aid = params->aid;
1118
1119        /*
1120         * FIXME: updating the following information is racy when this
1121         *        function is called from ieee80211_change_station().
1122         *        However, all this information should be static so
1123         *        maybe we should just reject attemps to change it.
1124         */
1125
1126        if (params->listen_interval >= 0)
1127                sta->listen_interval = params->listen_interval;
1128
1129        if (params->supported_rates) {
1130                rates = 0;
1131
1132                for (i = 0; i < params->supported_rates_len; i++) {
1133                        int rate = (params->supported_rates[i] & 0x7f) * 5;
1134                        for (j = 0; j < sband->n_bitrates; j++) {
1135                                if (sband->bitrates[j].bitrate == rate)
1136                                        rates |= BIT(j);
1137                        }
1138                }
1139                sta->sta.supp_rates[local->oper_channel->band] = rates;
1140        }
1141
1142        if (params->ht_capa)
1143                ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1144                                                  params->ht_capa,
1145                                                  &sta->sta.ht_cap);
1146
1147        if (ieee80211_vif_is_mesh(&sdata->vif)) {
1148#ifdef CONFIG_MAC80211_MESH
1149                if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
1150                        switch (params->plink_state) {
1151                        case NL80211_PLINK_LISTEN:
1152                        case NL80211_PLINK_ESTAB:
1153                        case NL80211_PLINK_BLOCKED:
1154                                sta->plink_state = params->plink_state;
1155                                break;
1156                        default:
1157                                /*  nothing  */
1158                                break;
1159                        }
1160                else
1161                        switch (params->plink_action) {
1162                        case PLINK_ACTION_OPEN:
1163                                mesh_plink_open(sta);
1164                                break;
1165                        case PLINK_ACTION_BLOCK:
1166                                mesh_plink_block(sta);
1167                                break;
1168                        }
1169#endif
1170        }
1171
1172        return 0;
1173}
1174
1175static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1176                                 u8 *mac, struct station_parameters *params)
1177{
1178        struct ieee80211_local *local = wiphy_priv(wiphy);
1179        struct sta_info *sta;
1180        struct ieee80211_sub_if_data *sdata;
1181        int err;
1182        int layer2_update;
1183
1184        if (params->vlan) {
1185                sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1186
1187                if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1188                    sdata->vif.type != NL80211_IFTYPE_AP)
1189                        return -EINVAL;
1190        } else
1191                sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1192
1193        if (ether_addr_equal(mac, sdata->vif.addr))
1194                return -EINVAL;
1195
1196        if (is_multicast_ether_addr(mac))
1197                return -EINVAL;
1198
1199        sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1200        if (!sta)
1201                return -ENOMEM;
1202
1203        sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1204        sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1205
1206        err = sta_apply_parameters(local, sta, params);
1207        if (err) {
1208                sta_info_free(local, sta);
1209                return err;
1210        }
1211
1212        /*
1213         * for TDLS, rate control should be initialized only when supported
1214         * rates are known.
1215         */
1216        if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1217                rate_control_rate_init(sta);
1218
1219        layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1220                sdata->vif.type == NL80211_IFTYPE_AP;
1221
1222        err = sta_info_insert_rcu(sta);
1223        if (err) {
1224                rcu_read_unlock();
1225                return err;
1226        }
1227
1228        if (layer2_update)
1229                ieee80211_send_layer2_update(sta);
1230
1231        rcu_read_unlock();
1232
1233        return 0;
1234}
1235
1236static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1237                                 u8 *mac)
1238{
1239        struct ieee80211_local *local = wiphy_priv(wiphy);
1240        struct ieee80211_sub_if_data *sdata;
1241
1242        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1243
1244        if (mac)
1245                return sta_info_destroy_addr_bss(sdata, mac);
1246
1247        sta_info_flush(local, sdata);
1248        return 0;
1249}
1250
1251static int ieee80211_change_station(struct wiphy *wiphy,
1252                                    struct net_device *dev,
1253                                    u8 *mac,
1254                                    struct station_parameters *params)
1255{
1256        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1257        struct ieee80211_local *local = wiphy_priv(wiphy);
1258        struct sta_info *sta;
1259        struct ieee80211_sub_if_data *vlansdata;
1260        int err;
1261
1262        mutex_lock(&local->sta_mtx);
1263
1264        sta = sta_info_get_bss(sdata, mac);
1265        if (!sta) {
1266                mutex_unlock(&local->sta_mtx);
1267                return -ENOENT;
1268        }
1269
1270        /* in station mode, supported rates are only valid with TDLS */
1271        if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1272            params->supported_rates &&
1273            !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1274                mutex_unlock(&local->sta_mtx);
1275                return -EINVAL;
1276        }
1277
1278        if (params->vlan && params->vlan != sta->sdata->dev) {
1279                bool prev_4addr = false;
1280                bool new_4addr = false;
1281
1282                vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1283
1284                if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1285                    vlansdata->vif.type != NL80211_IFTYPE_AP) {
1286                        mutex_unlock(&local->sta_mtx);
1287                        return -EINVAL;
1288                }
1289
1290                if (params->vlan->ieee80211_ptr->use_4addr) {
1291                        if (vlansdata->u.vlan.sta) {
1292                                mutex_unlock(&local->sta_mtx);
1293                                return -EBUSY;
1294                        }
1295
1296                        rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1297                        new_4addr = true;
1298                }
1299
1300                if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1301                    sta->sdata->u.vlan.sta) {
1302                        rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1303                        prev_4addr = true;
1304                }
1305
1306                sta->sdata = vlansdata;
1307
1308                if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1309                    prev_4addr != new_4addr) {
1310                        if (new_4addr)
1311                                atomic_dec(&sta->sdata->bss->num_mcast_sta);
1312                        else
1313                                atomic_inc(&sta->sdata->bss->num_mcast_sta);
1314                }
1315
1316                ieee80211_send_layer2_update(sta);
1317        }
1318
1319        err = sta_apply_parameters(local, sta, params);
1320        if (err) {
1321                mutex_unlock(&local->sta_mtx);
1322                return err;
1323        }
1324
1325        if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && params->supported_rates)
1326                rate_control_rate_init(sta);
1327
1328        mutex_unlock(&local->sta_mtx);
1329
1330        if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1331            params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1332                ieee80211_recalc_ps(local, -1);
1333                ieee80211_recalc_ps_vif(sdata);
1334        }
1335        return 0;
1336}
1337
1338#ifdef CONFIG_MAC80211_MESH
1339static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1340                                 u8 *dst, u8 *next_hop)
1341{
1342        struct ieee80211_sub_if_data *sdata;
1343        struct mesh_path *mpath;
1344        struct sta_info *sta;
1345        int err;
1346
1347        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1348
1349        rcu_read_lock();
1350        sta = sta_info_get(sdata, next_hop);
1351        if (!sta) {
1352                rcu_read_unlock();
1353                return -ENOENT;
1354        }
1355
1356        err = mesh_path_add(dst, sdata);
1357        if (err) {
1358                rcu_read_unlock();
1359                return err;
1360        }
1361
1362        mpath = mesh_path_lookup(dst, sdata);
1363        if (!mpath) {
1364                rcu_read_unlock();
1365                return -ENXIO;
1366        }
1367        mesh_path_fix_nexthop(mpath, sta);
1368
1369        rcu_read_unlock();
1370        return 0;
1371}
1372
1373static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1374                                 u8 *dst)
1375{
1376        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1377
1378        if (dst)
1379                return mesh_path_del(dst, sdata);
1380
1381        mesh_path_flush_by_iface(sdata);
1382        return 0;
1383}
1384
1385static int ieee80211_change_mpath(struct wiphy *wiphy,
1386                                    struct net_device *dev,
1387                                    u8 *dst, u8 *next_hop)
1388{
1389        struct ieee80211_sub_if_data *sdata;
1390        struct mesh_path *mpath;
1391        struct sta_info *sta;
1392
1393        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1394
1395        rcu_read_lock();
1396
1397        sta = sta_info_get(sdata, next_hop);
1398        if (!sta) {
1399                rcu_read_unlock();
1400                return -ENOENT;
1401        }
1402
1403        mpath = mesh_path_lookup(dst, sdata);
1404        if (!mpath) {
1405                rcu_read_unlock();
1406                return -ENOENT;
1407        }
1408
1409        mesh_path_fix_nexthop(mpath, sta);
1410
1411        rcu_read_unlock();
1412        return 0;
1413}
1414
1415static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1416                            struct mpath_info *pinfo)
1417{
1418        struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1419
1420        if (next_hop_sta)
1421                memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1422        else
1423                memset(next_hop, 0, ETH_ALEN);
1424
1425        memset(pinfo, 0, sizeof(*pinfo));
1426
1427        pinfo->generation = mesh_paths_generation;
1428
1429        pinfo->filled = MPATH_INFO_FRAME_QLEN |
1430                        MPATH_INFO_SN |
1431                        MPATH_INFO_METRIC |
1432                        MPATH_INFO_EXPTIME |
1433                        MPATH_INFO_DISCOVERY_TIMEOUT |
1434                        MPATH_INFO_DISCOVERY_RETRIES |
1435                        MPATH_INFO_FLAGS;
1436
1437        pinfo->frame_qlen = mpath->frame_queue.qlen;
1438        pinfo->sn = mpath->sn;
1439        pinfo->metric = mpath->metric;
1440        if (time_before(jiffies, mpath->exp_time))
1441                pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1442        pinfo->discovery_timeout =
1443                        jiffies_to_msecs(mpath->discovery_timeout);
1444        pinfo->discovery_retries = mpath->discovery_retries;
1445        if (mpath->flags & MESH_PATH_ACTIVE)
1446                pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1447        if (mpath->flags & MESH_PATH_RESOLVING)
1448                pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1449        if (mpath->flags & MESH_PATH_SN_VALID)
1450                pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1451        if (mpath->flags & MESH_PATH_FIXED)
1452                pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1453        if (mpath->flags & MESH_PATH_RESOLVED)
1454                pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1455}
1456
1457static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1458                               u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1459
1460{
1461        struct ieee80211_sub_if_data *sdata;
1462        struct mesh_path *mpath;
1463
1464        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1465
1466        rcu_read_lock();
1467        mpath = mesh_path_lookup(dst, sdata);
1468        if (!mpath) {
1469                rcu_read_unlock();
1470                return -ENOENT;
1471        }
1472        memcpy(dst, mpath->dst, ETH_ALEN);
1473        mpath_set_pinfo(mpath, next_hop, pinfo);
1474        rcu_read_unlock();
1475        return 0;
1476}
1477
1478static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1479                                 int idx, u8 *dst, u8 *next_hop,
1480                                 struct mpath_info *pinfo)
1481{
1482        struct ieee80211_sub_if_data *sdata;
1483        struct mesh_path *mpath;
1484
1485        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1486
1487        rcu_read_lock();
1488        mpath = mesh_path_lookup_by_idx(idx, sdata);
1489        if (!mpath) {
1490                rcu_read_unlock();
1491                return -ENOENT;
1492        }
1493        memcpy(dst, mpath->dst, ETH_ALEN);
1494        mpath_set_pinfo(mpath, next_hop, pinfo);
1495        rcu_read_unlock();
1496        return 0;
1497}
1498
1499static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1500                                struct net_device *dev,
1501                                struct mesh_config *conf)
1502{
1503        struct ieee80211_sub_if_data *sdata;
1504        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1505
1506        memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1507        return 0;
1508}
1509
1510static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1511{
1512        return (mask >> (parm-1)) & 0x1;
1513}
1514
1515static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1516                const struct mesh_setup *setup)
1517{
1518        u8 *new_ie;
1519        const u8 *old_ie;
1520        struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1521                                        struct ieee80211_sub_if_data, u.mesh);
1522
1523        /* allocate information elements */
1524        new_ie = NULL;
1525        old_ie = ifmsh->ie;
1526
1527        if (setup->ie_len) {
1528                new_ie = kmemdup(setup->ie, setup->ie_len,
1529                                GFP_KERNEL);
1530                if (!new_ie)
1531                        return -ENOMEM;
1532        }
1533        ifmsh->ie_len = setup->ie_len;
1534        ifmsh->ie = new_ie;
1535        kfree(old_ie);
1536
1537        /* now copy the rest of the setup parameters */
1538        ifmsh->mesh_id_len = setup->mesh_id_len;
1539        memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1540        ifmsh->mesh_sp_id = setup->sync_method;
1541        ifmsh->mesh_pp_id = setup->path_sel_proto;
1542        ifmsh->mesh_pm_id = setup->path_metric;
1543        ifmsh->security = IEEE80211_MESH_SEC_NONE;
1544        if (setup->is_authenticated)
1545                ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1546        if (setup->is_secure)
1547                ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1548
1549        /* mcast rate setting in Mesh Node */
1550        memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1551                                                sizeof(setup->mcast_rate));
1552
1553        return 0;
1554}
1555
1556static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1557                                        struct net_device *dev, u32 mask,
1558                                        const struct mesh_config *nconf)
1559{
1560        struct mesh_config *conf;
1561        struct ieee80211_sub_if_data *sdata;
1562        struct ieee80211_if_mesh *ifmsh;
1563
1564        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1565        ifmsh = &sdata->u.mesh;
1566
1567        /* Set the config options which we are interested in setting */
1568        conf = &(sdata->u.mesh.mshcfg);
1569        if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1570                conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1571        if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1572                conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1573        if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1574                conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1575        if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1576                conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1577        if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1578                conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1579        if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1580                conf->dot11MeshTTL = nconf->dot11MeshTTL;
1581        if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1582                conf->element_ttl = nconf->element_ttl;
1583        if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1584                conf->auto_open_plinks = nconf->auto_open_plinks;
1585        if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1586                conf->dot11MeshNbrOffsetMaxNeighbor =
1587                        nconf->dot11MeshNbrOffsetMaxNeighbor;
1588        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1589                conf->dot11MeshHWMPmaxPREQretries =
1590                        nconf->dot11MeshHWMPmaxPREQretries;
1591        if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1592                conf->path_refresh_time = nconf->path_refresh_time;
1593        if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1594                conf->min_discovery_timeout = nconf->min_discovery_timeout;
1595        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1596                conf->dot11MeshHWMPactivePathTimeout =
1597                        nconf->dot11MeshHWMPactivePathTimeout;
1598        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1599                conf->dot11MeshHWMPpreqMinInterval =
1600                        nconf->dot11MeshHWMPpreqMinInterval;
1601        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1602                conf->dot11MeshHWMPperrMinInterval =
1603                        nconf->dot11MeshHWMPperrMinInterval;
1604        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1605                           mask))
1606                conf->dot11MeshHWMPnetDiameterTraversalTime =
1607                        nconf->dot11MeshHWMPnetDiameterTraversalTime;
1608        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1609                conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1610                ieee80211_mesh_root_setup(ifmsh);
1611        }
1612        if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1613                /* our current gate announcement implementation rides on root
1614                 * announcements, so require this ifmsh to also be a root node
1615                 * */
1616                if (nconf->dot11MeshGateAnnouncementProtocol &&
1617                    !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1618                        conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1619                        ieee80211_mesh_root_setup(ifmsh);
1620                }
1621                conf->dot11MeshGateAnnouncementProtocol =
1622                        nconf->dot11MeshGateAnnouncementProtocol;
1623        }
1624        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1625                conf->dot11MeshHWMPRannInterval =
1626                        nconf->dot11MeshHWMPRannInterval;
1627        if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1628                conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1629        if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1630                /* our RSSI threshold implementation is supported only for
1631                 * devices that report signal in dBm.
1632                 */
1633                if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1634                        return -ENOTSUPP;
1635                conf->rssi_threshold = nconf->rssi_threshold;
1636        }
1637        if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1638                conf->ht_opmode = nconf->ht_opmode;
1639                sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1640                ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1641        }
1642        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1643                conf->dot11MeshHWMPactivePathToRootTimeout =
1644                        nconf->dot11MeshHWMPactivePathToRootTimeout;
1645        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1646                conf->dot11MeshHWMProotInterval =
1647                        nconf->dot11MeshHWMProotInterval;
1648        if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1649                conf->dot11MeshHWMPconfirmationInterval =
1650                        nconf->dot11MeshHWMPconfirmationInterval;
1651        return 0;
1652}
1653
1654static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1655                               const struct mesh_config *conf,
1656                               const struct mesh_setup *setup)
1657{
1658        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1659        struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1660        int err;
1661
1662        memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1663        err = copy_mesh_setup(ifmsh, setup);
1664        if (err)
1665                return err;
1666
1667        err = ieee80211_set_channel(wiphy, dev, setup->channel,
1668                                    setup->channel_type);
1669        if (err)
1670                return err;
1671
1672        ieee80211_start_mesh(sdata);
1673
1674        return 0;
1675}
1676
1677static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1678{
1679        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1680
1681        ieee80211_stop_mesh(sdata);
1682
1683        return 0;
1684}
1685#endif
1686
1687static int ieee80211_change_bss(struct wiphy *wiphy,
1688                                struct net_device *dev,
1689                                struct bss_parameters *params)
1690{
1691        struct ieee80211_sub_if_data *sdata;
1692        u32 changed = 0;
1693
1694        sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1695
1696        if (params->use_cts_prot >= 0) {
1697                sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1698                changed |= BSS_CHANGED_ERP_CTS_PROT;
1699        }
1700        if (params->use_short_preamble >= 0) {
1701                sdata->vif.bss_conf.use_short_preamble =
1702                        params->use_short_preamble;
1703                changed |= BSS_CHANGED_ERP_PREAMBLE;
1704        }
1705
1706        if (!sdata->vif.bss_conf.use_short_slot &&
1707            sdata->local->oper_channel->band == IEEE80211_BAND_5GHZ) {
1708                sdata->vif.bss_conf.use_short_slot = true;
1709                changed |= BSS_CHANGED_ERP_SLOT;
1710        }
1711
1712        if (params->use_short_slot_time >= 0) {
1713                sdata->vif.bss_conf.use_short_slot =
1714                        params->use_short_slot_time;
1715                changed |= BSS_CHANGED_ERP_SLOT;
1716        }
1717
1718        if (params->basic_rates) {
1719                int i, j;
1720                u32 rates = 0;
1721                struct ieee80211_local *local = wiphy_priv(wiphy);
1722                struct ieee80211_supported_band *sband =
1723                        wiphy->bands[local->oper_channel->band];
1724
1725                for (i = 0; i < params->basic_rates_len; i++) {
1726                        int rate = (params->basic_rates[i] & 0x7f) * 5;
1727                        for (j = 0; j < sband->n_bitrates; j++) {
1728                                if (sband->bitrates[j].bitrate == rate)
1729                                        rates |= BIT(j);
1730                        }
1731                }
1732                sdata->vif.bss_conf.basic_rates = rates;
1733                changed |= BSS_CHANGED_BASIC_RATES;
1734        }
1735
1736        if (params->ap_isolate >= 0) {
1737                if (params->ap_isolate)
1738                        sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1739                else
1740                        sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1741        }
1742
1743        if (params->ht_opmode >= 0) {
1744                sdata->vif.bss_conf.ht_operation_mode =
1745                        (u16) params->ht_opmode;
1746                changed |= BSS_CHANGED_HT;
1747        }
1748
1749        ieee80211_bss_info_change_notify(sdata, changed);
1750
1751        return 0;
1752}
1753
1754static int ieee80211_set_txq_params(struct wiphy *wiphy,
1755                                    struct net_device *dev,
1756                                    struct ieee80211_txq_params *params)
1757{
1758        struct ieee80211_local *local = wiphy_priv(wiphy);
1759        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1760        struct ieee80211_tx_queue_params p;
1761
1762        if (!local->ops->conf_tx)
1763                return -EOPNOTSUPP;
1764
1765        if (local->hw.queues < IEEE80211_NUM_ACS)
1766                return -EOPNOTSUPP;
1767
1768        memset(&p, 0, sizeof(p));
1769        p.aifs = params->aifs;
1770        p.cw_max = params->cwmax;
1771        p.cw_min = params->cwmin;
1772        p.txop = params->txop;
1773
1774        /*
1775         * Setting tx queue params disables u-apsd because it's only
1776         * called in master mode.
1777         */
1778        p.uapsd = false;
1779
1780        sdata->tx_conf[params->ac] = p;
1781        if (drv_conf_tx(local, sdata, params->ac, &p)) {
1782                wiphy_debug(local->hw.wiphy,
1783                            "failed to set TX queue parameters for AC %d\n",
1784                            params->ac);
1785                return -EINVAL;
1786        }
1787
1788        ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1789
1790        return 0;
1791}
1792
1793#ifdef CONFIG_PM
1794static int ieee80211_suspend(struct wiphy *wiphy,
1795                             struct cfg80211_wowlan *wowlan)
1796{
1797        return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1798}
1799
1800static int ieee80211_resume(struct wiphy *wiphy)
1801{
1802        return __ieee80211_resume(wiphy_priv(wiphy));
1803}
1804#else
1805#define ieee80211_suspend NULL
1806#define ieee80211_resume NULL
1807#endif
1808
1809static int ieee80211_scan(struct wiphy *wiphy,
1810                          struct cfg80211_scan_request *req)
1811{
1812        struct ieee80211_sub_if_data *sdata;
1813
1814        sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
1815
1816        switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1817        case NL80211_IFTYPE_STATION:
1818        case NL80211_IFTYPE_ADHOC:
1819        case NL80211_IFTYPE_MESH_POINT:
1820        case NL80211_IFTYPE_P2P_CLIENT:
1821        case NL80211_IFTYPE_P2P_DEVICE:
1822                break;
1823        case NL80211_IFTYPE_P2P_GO:
1824                if (sdata->local->ops->hw_scan)
1825                        break;
1826                /*
1827                 * FIXME: implement NoA while scanning in software,
1828                 * for now fall through to allow scanning only when
1829                 * beaconing hasn't been configured yet
1830                 */
1831        case NL80211_IFTYPE_AP:
1832                if (sdata->u.ap.beacon)
1833                        return -EOPNOTSUPP;
1834                break;
1835        default:
1836                return -EOPNOTSUPP;
1837        }
1838
1839        return ieee80211_request_scan(sdata, req);
1840}
1841
1842static int
1843ieee80211_sched_scan_start(struct wiphy *wiphy,
1844                           struct net_device *dev,
1845                           struct cfg80211_sched_scan_request *req)
1846{
1847        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1848
1849        if (!sdata->local->ops->sched_scan_start)
1850                return -EOPNOTSUPP;
1851
1852        return ieee80211_request_sched_scan_start(sdata, req);
1853}
1854
1855static int
1856ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1857{
1858        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1859
1860        if (!sdata->local->ops->sched_scan_stop)
1861                return -EOPNOTSUPP;
1862
1863        return ieee80211_request_sched_scan_stop(sdata);
1864}
1865
1866static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1867                          struct cfg80211_auth_request *req)
1868{
1869        return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1870}
1871
1872static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1873                           struct cfg80211_assoc_request *req)
1874{
1875        struct ieee80211_local *local = wiphy_priv(wiphy);
1876        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1877
1878        switch (ieee80211_get_channel_mode(local, sdata)) {
1879        case CHAN_MODE_HOPPING:
1880                return -EBUSY;
1881        case CHAN_MODE_FIXED:
1882                if (local->oper_channel == req->bss->channel)
1883                        break;
1884                return -EBUSY;
1885        case CHAN_MODE_UNDEFINED:
1886                break;
1887        }
1888
1889        return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1890}
1891
1892static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1893                            struct cfg80211_deauth_request *req)
1894{
1895        return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1896}
1897
1898static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1899                              struct cfg80211_disassoc_request *req)
1900{
1901        return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1902}
1903
1904static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1905                               struct cfg80211_ibss_params *params)
1906{
1907        struct ieee80211_local *local = wiphy_priv(wiphy);
1908        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1909
1910        switch (ieee80211_get_channel_mode(local, sdata)) {
1911        case CHAN_MODE_HOPPING:
1912                return -EBUSY;
1913        case CHAN_MODE_FIXED:
1914                if (!params->channel_fixed)
1915                        return -EBUSY;
1916                if (local->oper_channel == params->channel)
1917                        break;
1918                return -EBUSY;
1919        case CHAN_MODE_UNDEFINED:
1920                break;
1921        }
1922
1923        return ieee80211_ibss_join(sdata, params);
1924}
1925
1926static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1927{
1928        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1929
1930        return ieee80211_ibss_leave(sdata);
1931}
1932
1933static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1934{
1935        struct ieee80211_local *local = wiphy_priv(wiphy);
1936        int err;
1937
1938        if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1939                err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1940
1941                if (err)
1942                        return err;
1943        }
1944
1945        if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1946                err = drv_set_coverage_class(local, wiphy->coverage_class);
1947
1948                if (err)
1949                        return err;
1950        }
1951
1952        if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1953                err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1954
1955                if (err)
1956                        return err;
1957        }
1958
1959        if (changed & WIPHY_PARAM_RETRY_SHORT)
1960                local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1961        if (changed & WIPHY_PARAM_RETRY_LONG)
1962                local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1963        if (changed &
1964            (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1965                ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1966
1967        return 0;
1968}
1969
1970static int ieee80211_set_tx_power(struct wiphy *wiphy,
1971                                  enum nl80211_tx_power_setting type, int mbm)
1972{
1973        struct ieee80211_local *local = wiphy_priv(wiphy);
1974        struct ieee80211_channel *chan = local->oper_channel;
1975        u32 changes = 0;
1976
1977        switch (type) {
1978        case NL80211_TX_POWER_AUTOMATIC:
1979                local->user_power_level = -1;
1980                break;
1981        case NL80211_TX_POWER_LIMITED:
1982                if (mbm < 0 || (mbm % 100))
1983                        return -EOPNOTSUPP;
1984                local->user_power_level = MBM_TO_DBM(mbm);
1985                break;
1986        case NL80211_TX_POWER_FIXED:
1987                if (mbm < 0 || (mbm % 100))
1988                        return -EOPNOTSUPP;
1989                /* TODO: move to cfg80211 when it knows the channel */
1990                if (MBM_TO_DBM(mbm) > chan->max_power)
1991                        return -EINVAL;
1992                local->user_power_level = MBM_TO_DBM(mbm);
1993                break;
1994        }
1995
1996        ieee80211_hw_config(local, changes);
1997
1998        return 0;
1999}
2000
2001static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
2002{
2003        struct ieee80211_local *local = wiphy_priv(wiphy);
2004
2005        *dbm = local->hw.conf.power_level;
2006
2007        return 0;
2008}
2009
2010static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2011                                  const u8 *addr)
2012{
2013        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2014
2015        memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2016
2017        return 0;
2018}
2019
2020static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2021{
2022        struct ieee80211_local *local = wiphy_priv(wiphy);
2023
2024        drv_rfkill_poll(local);
2025}
2026
2027#ifdef CONFIG_NL80211_TESTMODE
2028static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
2029{
2030        struct ieee80211_local *local = wiphy_priv(wiphy);
2031
2032        if (!local->ops->testmode_cmd)
2033                return -EOPNOTSUPP;
2034
2035        return local->ops->testmode_cmd(&local->hw, data, len);
2036}
2037
2038static int ieee80211_testmode_dump(struct wiphy *wiphy,
2039                                   struct sk_buff *skb,
2040                                   struct netlink_callback *cb,
2041                                   void *data, int len)
2042{
2043        struct ieee80211_local *local = wiphy_priv(wiphy);
2044
2045        if (!local->ops->testmode_dump)
2046                return -EOPNOTSUPP;
2047
2048        return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2049}
2050#endif
2051
2052int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
2053                             enum ieee80211_smps_mode smps_mode)
2054{
2055        const u8 *ap;
2056        enum ieee80211_smps_mode old_req;
2057        int err;
2058
2059        lockdep_assert_held(&sdata->u.mgd.mtx);
2060
2061        old_req = sdata->u.mgd.req_smps;
2062        sdata->u.mgd.req_smps = smps_mode;
2063
2064        if (old_req == smps_mode &&
2065            smps_mode != IEEE80211_SMPS_AUTOMATIC)
2066                return 0;
2067
2068        /*
2069         * If not associated, or current association is not an HT
2070         * association, there's no need to send an action frame.
2071         */
2072        if (!sdata->u.mgd.associated ||
2073            sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
2074                ieee80211_recalc_smps(sdata->local);
2075                return 0;
2076        }
2077
2078        ap = sdata->u.mgd.associated->bssid;
2079
2080        if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2081                if (sdata->u.mgd.powersave)
2082                        smps_mode = IEEE80211_SMPS_DYNAMIC;
2083                else
2084                        smps_mode = IEEE80211_SMPS_OFF;
2085        }
2086
2087        /* send SM PS frame to AP */
2088        err = ieee80211_send_smps_action(sdata, smps_mode,
2089                                         ap, ap);
2090        if (err)
2091                sdata->u.mgd.req_smps = old_req;
2092
2093        return err;
2094}
2095
2096static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2097                                    bool enabled, int timeout)
2098{
2099        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2100        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2101
2102        if (sdata->vif.type != NL80211_IFTYPE_STATION)
2103                return -EOPNOTSUPP;
2104
2105        if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2106                return -EOPNOTSUPP;
2107
2108        if (enabled == sdata->u.mgd.powersave &&
2109            timeout == local->dynamic_ps_forced_timeout)
2110                return 0;
2111
2112        sdata->u.mgd.powersave = enabled;
2113        local->dynamic_ps_forced_timeout = timeout;
2114
2115        /* no change, but if automatic follow powersave */
2116        mutex_lock(&sdata->u.mgd.mtx);
2117        __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
2118        mutex_unlock(&sdata->u.mgd.mtx);
2119
2120        if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2121                ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2122
2123        ieee80211_recalc_ps(local, -1);
2124        ieee80211_recalc_ps_vif(sdata);
2125
2126        return 0;
2127}
2128
2129static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2130                                         struct net_device *dev,
2131                                         s32 rssi_thold, u32 rssi_hyst)
2132{
2133        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2134        struct ieee80211_vif *vif = &sdata->vif;
2135        struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2136
2137        if (rssi_thold == bss_conf->cqm_rssi_thold &&
2138            rssi_hyst == bss_conf->cqm_rssi_hyst)
2139                return 0;
2140
2141        bss_conf->cqm_rssi_thold = rssi_thold;
2142        bss_conf->cqm_rssi_hyst = rssi_hyst;
2143
2144        /* tell the driver upon association, unless already associated */
2145        if (sdata->u.mgd.associated &&
2146            sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2147                ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2148
2149        return 0;
2150}
2151
2152static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2153                                      struct net_device *dev,
2154                                      const u8 *addr,
2155                                      const struct cfg80211_bitrate_mask *mask)
2156{
2157        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2158        struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2159        int i, ret;
2160
2161        if (!ieee80211_sdata_running(sdata))
2162                return -ENETDOWN;
2163
2164        if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2165                ret = drv_set_bitrate_mask(local, sdata, mask);
2166                if (ret)
2167                        return ret;
2168        }
2169
2170        for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2171                sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2172                memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
2173                       sizeof(mask->control[i].mcs));
2174        }
2175
2176        return 0;
2177}
2178
2179static int ieee80211_start_roc_work(struct ieee80211_local *local,
2180                                    struct ieee80211_sub_if_data *sdata,
2181                                    struct ieee80211_channel *channel,
2182                                    enum nl80211_channel_type channel_type,
2183                                    unsigned int duration, u64 *cookie,
2184                                    struct sk_buff *txskb)
2185{
2186        struct ieee80211_roc_work *roc, *tmp;
2187        bool queued = false;
2188        int ret;
2189
2190        lockdep_assert_held(&local->mtx);
2191
2192        roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2193        if (!roc)
2194                return -ENOMEM;
2195
2196        roc->chan = channel;
2197        roc->chan_type = channel_type;
2198        roc->duration = duration;
2199        roc->req_duration = duration;
2200        roc->frame = txskb;
2201        roc->mgmt_tx_cookie = (unsigned long)txskb;
2202        roc->sdata = sdata;
2203        INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2204        INIT_LIST_HEAD(&roc->dependents);
2205
2206        /* if there's one pending or we're scanning, queue this one */
2207        if (!list_empty(&local->roc_list) || local->scanning)
2208                goto out_check_combine;
2209
2210        /* if not HW assist, just queue & schedule work */
2211        if (!local->ops->remain_on_channel) {
2212                ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2213                goto out_queue;
2214        }
2215
2216        /* otherwise actually kick it off here (for error handling) */
2217
2218        /*
2219         * If the duration is zero, then the driver
2220         * wouldn't actually do anything. Set it to
2221         * 10 for now.
2222         *
2223         * TODO: cancel the off-channel operation
2224         *       when we get the SKB's TX status and
2225         *       the wait time was zero before.
2226         */
2227        if (!duration)
2228                duration = 10;
2229
2230        ret = drv_remain_on_channel(local, channel, channel_type, duration);
2231        if (ret) {
2232                kfree(roc);
2233                return ret;
2234        }
2235
2236        roc->started = true;
2237        goto out_queue;
2238
2239 out_check_combine:
2240        list_for_each_entry(tmp, &local->roc_list, list) {
2241                if (tmp->chan != channel || tmp->chan_type != channel_type)
2242                        continue;
2243
2244                /*
2245                 * Extend this ROC if possible:
2246                 *
2247                 * If it hasn't started yet, just increase the duration
2248                 * and add the new one to the list of dependents.
2249                 */
2250                if (!tmp->started) {
2251                        list_add_tail(&roc->list, &tmp->dependents);
2252                        tmp->duration = max(tmp->duration, roc->duration);
2253                        queued = true;
2254                        break;
2255                }
2256
2257                /* If it has already started, it's more difficult ... */
2258                if (local->ops->remain_on_channel) {
2259                        unsigned long j = jiffies;
2260
2261                        /*
2262                         * In the offloaded ROC case, if it hasn't begun, add
2263                         * this new one to the dependent list to be handled
2264                         * when the the master one begins. If it has begun,
2265                         * check that there's still a minimum time left and
2266                         * if so, start this one, transmitting the frame, but
2267                         * add it to the list directly after this one with a
2268                         * a reduced time so we'll ask the driver to execute
2269                         * it right after finishing the previous one, in the
2270                         * hope that it'll also be executed right afterwards,
2271                         * effectively extending the old one.
2272                         * If there's no minimum time left, just add it to the
2273                         * normal list.
2274                         */
2275                        if (!tmp->hw_begun) {
2276                                list_add_tail(&roc->list, &tmp->dependents);
2277                                queued = true;
2278                                break;
2279                        }
2280
2281                        if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2282                                        tmp->hw_start_time +
2283                                        msecs_to_jiffies(tmp->duration))) {
2284                                int new_dur;
2285
2286                                ieee80211_handle_roc_started(roc);
2287
2288                                new_dur = roc->duration -
2289                                          jiffies_to_msecs(tmp->hw_start_time +
2290                                                           msecs_to_jiffies(
2291                                                                tmp->duration) -
2292                                                           j);
2293
2294                                if (new_dur > 0) {
2295                                        /* add right after tmp */
2296                                        list_add(&roc->list, &tmp->list);
2297                                } else {
2298                                        list_add_tail(&roc->list,
2299                                                      &tmp->dependents);
2300                                }
2301                                queued = true;
2302                        }
2303                } else if (del_timer_sync(&tmp->work.timer)) {
2304                        unsigned long new_end;
2305
2306                        /*
2307                         * In the software ROC case, cancel the timer, if
2308                         * that fails then the finish work is already
2309                         * queued/pending and thus we queue the new ROC
2310                         * normally, if that succeeds then we can extend
2311                         * the timer duration and TX the frame (if any.)
2312                         */
2313
2314                        list_add_tail(&roc->list, &tmp->dependents);
2315                        queued = true;
2316
2317                        new_end = jiffies + msecs_to_jiffies(roc->duration);
2318
2319                        /* ok, it was started & we canceled timer */
2320                        if (time_after(new_end, tmp->work.timer.expires))
2321                                mod_timer(&tmp->work.timer, new_end);
2322                        else
2323                                add_timer(&tmp->work.timer);
2324
2325                        ieee80211_handle_roc_started(roc);
2326                }
2327                break;
2328        }
2329
2330 out_queue:
2331        if (!queued)
2332                list_add_tail(&roc->list, &local->roc_list);
2333
2334        /*
2335         * cookie is either the roc (for normal roc)
2336         * or the SKB (for mgmt TX)
2337         */
2338        if (txskb)
2339                *cookie = (unsigned long)txskb;
2340        else
2341                *cookie = (unsigned long)roc;
2342
2343        return 0;
2344}
2345
2346static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2347                                       struct wireless_dev *wdev,
2348                                       struct ieee80211_channel *chan,
2349                                       enum nl80211_channel_type channel_type,
2350                                       unsigned int duration,
2351                                       u64 *cookie)
2352{
2353        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2354        struct ieee80211_local *local = sdata->local;
2355        int ret;
2356
2357        mutex_lock(&local->mtx);
2358        ret = ieee80211_start_roc_work(local, sdata, chan, channel_type,
2359                                       duration, cookie, NULL);
2360        mutex_unlock(&local->mtx);
2361
2362        return ret;
2363}
2364
2365static int ieee80211_cancel_roc(struct ieee80211_local *local,
2366                                u64 cookie, bool mgmt_tx)
2367{
2368        struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2369        int ret;
2370
2371        mutex_lock(&local->mtx);
2372        list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2373                struct ieee80211_roc_work *dep, *tmp2;
2374
2375                list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2376                        if (!mgmt_tx && (unsigned long)dep != cookie)
2377                                continue;
2378                        else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2379                                continue;
2380                        /* found dependent item -- just remove it */
2381                        list_del(&dep->list);
2382                        mutex_unlock(&local->mtx);
2383
2384                        ieee80211_roc_notify_destroy(dep);
2385                        return 0;
2386                }
2387
2388                if (!mgmt_tx && (unsigned long)roc != cookie)
2389                        continue;
2390                else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2391                        continue;
2392
2393                found = roc;
2394                break;
2395        }
2396
2397        if (!found) {
2398                mutex_unlock(&local->mtx);
2399                return -ENOENT;
2400        }
2401
2402        /*
2403         * We found the item to cancel, so do that. Note that it
2404         * may have dependents, which we also cancel (and send
2405         * the expired signal for.) Not doing so would be quite
2406         * tricky here, but we may need to fix it later.
2407         */
2408
2409        if (local->ops->remain_on_channel) {
2410                if (found->started) {
2411                        ret = drv_cancel_remain_on_channel(local);
2412                        if (WARN_ON_ONCE(ret)) {
2413                                mutex_unlock(&local->mtx);
2414                                return ret;
2415                        }
2416                }
2417
2418                list_del(&found->list);
2419
2420                if (found->started)
2421                        ieee80211_start_next_roc(local);
2422                mutex_unlock(&local->mtx);
2423
2424                ieee80211_roc_notify_destroy(found);
2425        } else {
2426                /* work may be pending so use it all the time */
2427                found->abort = true;
2428                ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2429
2430                mutex_unlock(&local->mtx);
2431
2432                /* work will clean up etc */
2433                flush_delayed_work(&found->work);
2434        }
2435
2436        return 0;
2437}
2438
2439static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2440                                              struct wireless_dev *wdev,
2441                                              u64 cookie)
2442{
2443        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2444        struct ieee80211_local *local = sdata->local;
2445
2446        return ieee80211_cancel_roc(local, cookie, false);
2447}
2448
2449static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
2450                             struct ieee80211_channel *chan, bool offchan,
2451                             enum nl80211_channel_type channel_type,
2452                             bool channel_type_valid, unsigned int wait,
2453                             const u8 *buf, size_t len, bool no_cck,
2454                             bool dont_wait_for_ack, u64 *cookie)
2455{
2456        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2457        struct ieee80211_local *local = sdata->local;
2458        struct sk_buff *skb;
2459        struct sta_info *sta;
2460        const struct ieee80211_mgmt *mgmt = (void *)buf;
2461        bool need_offchan = false;
2462        u32 flags;
2463        int ret;
2464
2465        if (dont_wait_for_ack)
2466                flags = IEEE80211_TX_CTL_NO_ACK;
2467        else
2468                flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
2469                        IEEE80211_TX_CTL_REQ_TX_STATUS;
2470
2471        if (no_cck)
2472                flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
2473
2474        switch (sdata->vif.type) {
2475        case NL80211_IFTYPE_ADHOC:
2476                if (!sdata->vif.bss_conf.ibss_joined)
2477                        need_offchan = true;
2478                /* fall through */
2479#ifdef CONFIG_MAC80211_MESH
2480        case NL80211_IFTYPE_MESH_POINT:
2481                if (ieee80211_vif_is_mesh(&sdata->vif) &&
2482                    !sdata->u.mesh.mesh_id_len)
2483                        need_offchan = true;
2484                /* fall through */
2485#endif
2486        case NL80211_IFTYPE_AP:
2487        case NL80211_IFTYPE_AP_VLAN:
2488        case NL80211_IFTYPE_P2P_GO:
2489                if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
2490                    !ieee80211_vif_is_mesh(&sdata->vif) &&
2491                    !rcu_access_pointer(sdata->bss->beacon))
2492                        need_offchan = true;
2493                if (!ieee80211_is_action(mgmt->frame_control) ||
2494                    mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
2495                        break;
2496                rcu_read_lock();
2497                sta = sta_info_get(sdata, mgmt->da);
2498                rcu_read_unlock();
2499                if (!sta)
2500                        return -ENOLINK;
2501                break;
2502        case NL80211_IFTYPE_STATION:
2503        case NL80211_IFTYPE_P2P_CLIENT:
2504                if (!sdata->u.mgd.associated)
2505                        need_offchan = true;
2506                break;
2507        case NL80211_IFTYPE_P2P_DEVICE:
2508                need_offchan = true;
2509                break;
2510        default:
2511                return -EOPNOTSUPP;
2512        }
2513
2514        mutex_lock(&local->mtx);
2515
2516        /* Check if the operating channel is the requested channel */
2517        if (!need_offchan) {
2518                need_offchan = chan != local->oper_channel;
2519                if (channel_type_valid &&
2520                    channel_type != local->_oper_channel_type)
2521                        need_offchan = true;
2522        }
2523
2524        if (need_offchan && !offchan) {
2525                ret = -EBUSY;
2526                goto out_unlock;
2527        }
2528
2529        skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
2530        if (!skb) {
2531                ret = -ENOMEM;
2532                goto out_unlock;
2533        }
2534        skb_reserve(skb, local->hw.extra_tx_headroom);
2535
2536        memcpy(skb_put(skb, len), buf, len);
2537
2538        IEEE80211_SKB_CB(skb)->flags = flags;
2539
2540        skb->dev = sdata->dev;
2541
2542        if (!need_offchan) {
2543                *cookie = (unsigned long) skb;
2544                ieee80211_tx_skb(sdata, skb);
2545                ret = 0;
2546                goto out_unlock;
2547        }
2548
2549        IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
2550        if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
2551                IEEE80211_SKB_CB(skb)->hw_queue =
2552                        local->hw.offchannel_tx_hw_queue;
2553
2554        /* This will handle all kinds of coalescing and immediate TX */
2555        ret = ieee80211_start_roc_work(local, sdata, chan, channel_type,
2556                                       wait, cookie, skb);
2557        if (ret)
2558                kfree_skb(skb);
2559 out_unlock:
2560        mutex_unlock(&local->mtx);
2561        return ret;
2562}
2563
2564static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2565                                         struct wireless_dev *wdev,
2566                                         u64 cookie)
2567{
2568        struct ieee80211_local *local = wiphy_priv(wiphy);
2569
2570        return ieee80211_cancel_roc(local, cookie, true);
2571}
2572
2573static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2574                                          struct wireless_dev *wdev,
2575                                          u16 frame_type, bool reg)
2576{
2577        struct ieee80211_local *local = wiphy_priv(wiphy);
2578        struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2579
2580        switch (frame_type) {
2581        case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH:
2582                if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
2583                        struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
2584
2585                        if (reg)
2586                                ifibss->auth_frame_registrations++;
2587                        else
2588                                ifibss->auth_frame_registrations--;
2589                }
2590                break;
2591        case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
2592                if (reg)
2593                        local->probe_req_reg++;
2594                else
2595                        local->probe_req_reg--;
2596
2597                if (!local->open_count)
2598                        break;
2599
2600                ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2601                break;
2602        default:
2603                break;
2604        }
2605}
2606
2607static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2608{
2609        struct ieee80211_local *local = wiphy_priv(wiphy);
2610
2611        if (local->started)
2612                return -EOPNOTSUPP;
2613
2614        return drv_set_antenna(local, tx_ant, rx_ant);
2615}
2616
2617static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2618{
2619        struct ieee80211_local *local = wiphy_priv(wiphy);
2620
2621        return drv_get_antenna(local, tx_ant, rx_ant);
2622}
2623
2624static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2625{
2626        struct ieee80211_local *local = wiphy_priv(wiphy);
2627
2628        return drv_set_ringparam(local, tx, rx);
2629}
2630
2631static void ieee80211_get_ringparam(struct wiphy *wiphy,
2632                                    u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2633{
2634        struct ieee80211_local *local = wiphy_priv(wiphy);
2635
2636        drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2637}
2638
2639static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2640                                    struct net_device *dev,
2641                                    struct cfg80211_gtk_rekey_data *data)
2642{
2643        struct ieee80211_local *local = wiphy_priv(wiphy);
2644        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2645
2646        if (!local->ops->set_rekey_data)
2647                return -EOPNOTSUPP;
2648
2649        drv_set_rekey_data(local, sdata, data);
2650
2651        return 0;
2652}
2653
2654static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
2655{
2656        u8 *pos = (void *)skb_put(skb, 7);
2657
2658        *pos++ = WLAN_EID_EXT_CAPABILITY;
2659        *pos++ = 5; /* len */
2660        *pos++ = 0x0;
2661        *pos++ = 0x0;
2662        *pos++ = 0x0;
2663        *pos++ = 0x0;
2664        *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
2665}
2666
2667static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
2668{
2669        struct ieee80211_local *local = sdata->local;
2670        u16 capab;
2671
2672        capab = 0;
2673        if (local->oper_channel->band != IEEE80211_BAND_2GHZ)
2674                return capab;
2675
2676        if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
2677                capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
2678        if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
2679                capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
2680
2681        return capab;
2682}
2683
2684static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
2685                                       u8 *peer, u8 *bssid)
2686{
2687        struct ieee80211_tdls_lnkie *lnkid;
2688
2689        lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
2690
2691        lnkid->ie_type = WLAN_EID_LINK_ID;
2692        lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
2693
2694        memcpy(lnkid->bssid, bssid, ETH_ALEN);
2695        memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
2696        memcpy(lnkid->resp_sta, peer, ETH_ALEN);
2697}
2698
2699static int
2700ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
2701                               u8 *peer, u8 action_code, u8 dialog_token,
2702                               u16 status_code, struct sk_buff *skb)
2703{
2704        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2705        struct ieee80211_local *local = sdata->local;
2706        struct ieee80211_tdls_data *tf;
2707
2708        tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
2709
2710        memcpy(tf->da, peer, ETH_ALEN);
2711        memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
2712        tf->ether_type = cpu_to_be16(ETH_P_TDLS);
2713        tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
2714
2715        switch (action_code) {
2716        case WLAN_TDLS_SETUP_REQUEST:
2717                tf->category = WLAN_CATEGORY_TDLS;
2718                tf->action_code = WLAN_TDLS_SETUP_REQUEST;
2719
2720                skb_put(skb, sizeof(tf->u.setup_req));
2721                tf->u.setup_req.dialog_token = dialog_token;
2722                tf->u.setup_req.capability =
2723                        cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2724
2725                ieee80211_add_srates_ie(sdata, skb, false,
2726                                        local->oper_channel->band);
2727                ieee80211_add_ext_srates_ie(sdata, skb, false,
2728                                            local->oper_channel->band);
2729                ieee80211_tdls_add_ext_capab(skb);
2730                break;
2731        case WLAN_TDLS_SETUP_RESPONSE:
2732                tf->category = WLAN_CATEGORY_TDLS;
2733                tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
2734
2735                skb_put(skb, sizeof(tf->u.setup_resp));
2736                tf->u.setup_resp.status_code = cpu_to_le16(status_code);
2737                tf->u.setup_resp.dialog_token = dialog_token;
2738                tf->u.setup_resp.capability =
2739                        cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2740
2741                ieee80211_add_srates_ie(sdata, skb, false,
2742                                        local->oper_channel->band);
2743                ieee80211_add_ext_srates_ie(sdata, skb, false,
2744                                            local->oper_channel->band);
2745                ieee80211_tdls_add_ext_capab(skb);
2746                break;
2747        case WLAN_TDLS_SETUP_CONFIRM:
2748                tf->category = WLAN_CATEGORY_TDLS;
2749                tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
2750
2751                skb_put(skb, sizeof(tf->u.setup_cfm));
2752                tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
2753                tf->u.setup_cfm.dialog_token = dialog_token;
2754                break;
2755        case WLAN_TDLS_TEARDOWN:
2756                tf->category = WLAN_CATEGORY_TDLS;
2757                tf->action_code = WLAN_TDLS_TEARDOWN;
2758
2759                skb_put(skb, sizeof(tf->u.teardown));
2760                tf->u.teardown.reason_code = cpu_to_le16(status_code);
2761                break;
2762        case WLAN_TDLS_DISCOVERY_REQUEST:
2763                tf->category = WLAN_CATEGORY_TDLS;
2764                tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
2765
2766                skb_put(skb, sizeof(tf->u.discover_req));
2767                tf->u.discover_req.dialog_token = dialog_token;
2768                break;
2769        default:
2770                return -EINVAL;
2771        }
2772
2773        return 0;
2774}
2775
2776static int
2777ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
2778                           u8 *peer, u8 action_code, u8 dialog_token,
2779                           u16 status_code, struct sk_buff *skb)
2780{
2781        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2782        struct ieee80211_local *local = sdata->local;
2783        struct ieee80211_mgmt *mgmt;
2784
2785        mgmt = (void *)skb_put(skb, 24);
2786        memset(mgmt, 0, 24);
2787        memcpy(mgmt->da, peer, ETH_ALEN);
2788        memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
2789        memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
2790
2791        mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2792                                          IEEE80211_STYPE_ACTION);
2793
2794        switch (action_code) {
2795        case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2796                skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
2797                mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
2798                mgmt->u.action.u.tdls_discover_resp.action_code =
2799                        WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
2800                mgmt->u.action.u.tdls_discover_resp.dialog_token =
2801                        dialog_token;
2802                mgmt->u.action.u.tdls_discover_resp.capability =
2803                        cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2804
2805                ieee80211_add_srates_ie(sdata, skb, false,
2806                                        local->oper_channel->band);
2807                ieee80211_add_ext_srates_ie(sdata, skb, false,
2808                                            local->oper_channel->band);
2809                ieee80211_tdls_add_ext_capab(skb);
2810                break;
2811        default:
2812                return -EINVAL;
2813        }
2814
2815        return 0;
2816}
2817
2818static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2819                               u8 *peer, u8 action_code, u8 dialog_token,
2820                               u16 status_code, const u8 *extra_ies,
2821                               size_t extra_ies_len)
2822{
2823        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2824        struct ieee80211_local *local = sdata->local;
2825        struct ieee80211_tx_info *info;
2826        struct sk_buff *skb = NULL;
2827        bool send_direct;
2828        int ret;
2829
2830        if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2831                return -ENOTSUPP;
2832
2833        /* make sure we are in managed mode, and associated */
2834        if (sdata->vif.type != NL80211_IFTYPE_STATION ||
2835            !sdata->u.mgd.associated)
2836                return -EINVAL;
2837
2838        tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
2839                 action_code, peer);
2840
2841        skb = dev_alloc_skb(local->hw.extra_tx_headroom +
2842                            max(sizeof(struct ieee80211_mgmt),
2843                                sizeof(struct ieee80211_tdls_data)) +
2844                            50 + /* supported rates */
2845                            7 + /* ext capab */
2846                            extra_ies_len +
2847                            sizeof(struct ieee80211_tdls_lnkie));
2848        if (!skb)
2849                return -ENOMEM;
2850
2851        info = IEEE80211_SKB_CB(skb);
2852        skb_reserve(skb, local->hw.extra_tx_headroom);
2853
2854        switch (action_code) {
2855        case WLAN_TDLS_SETUP_REQUEST:
2856        case WLAN_TDLS_SETUP_RESPONSE:
2857        case WLAN_TDLS_SETUP_CONFIRM:
2858        case WLAN_TDLS_TEARDOWN:
2859        case WLAN_TDLS_DISCOVERY_REQUEST:
2860                ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
2861                                                     action_code, dialog_token,
2862                                                     status_code, skb);
2863                send_direct = false;
2864                break;
2865        case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2866                ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
2867                                                 dialog_token, status_code,
2868                                                 skb);
2869                send_direct = true;
2870                break;
2871        default:
2872                ret = -ENOTSUPP;
2873                break;
2874        }
2875
2876        if (ret < 0)
2877                goto fail;
2878
2879        if (extra_ies_len)
2880                memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
2881
2882        /* the TDLS link IE is always added last */
2883        switch (action_code) {
2884        case WLAN_TDLS_SETUP_REQUEST:
2885        case WLAN_TDLS_SETUP_CONFIRM:
2886        case WLAN_TDLS_TEARDOWN:
2887        case WLAN_TDLS_DISCOVERY_REQUEST:
2888                /* we are the initiator */
2889                ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
2890                                           sdata->u.mgd.bssid);
2891                break;
2892        case WLAN_TDLS_SETUP_RESPONSE:
2893        case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2894                /* we are the responder */
2895                ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
2896                                           sdata->u.mgd.bssid);
2897                break;
2898        default:
2899                ret = -ENOTSUPP;
2900                goto fail;
2901        }
2902
2903        if (send_direct) {
2904                ieee80211_tx_skb(sdata, skb);
2905                return 0;
2906        }
2907
2908        /*
2909         * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
2910         * we should default to AC_VI.
2911         */
2912        switch (action_code) {
2913        case WLAN_TDLS_SETUP_REQUEST:
2914        case WLAN_TDLS_SETUP_RESPONSE:
2915                skb_set_queue_mapping(skb, IEEE80211_AC_BK);
2916                skb->priority = 2;
2917                break;
2918        default:
2919                skb_set_queue_mapping(skb, IEEE80211_AC_VI);
2920                skb->priority = 5;
2921                break;
2922        }
2923
2924        /* disable bottom halves when entering the Tx path */
2925        local_bh_disable();
2926        ret = ieee80211_subif_start_xmit(skb, dev);
2927        local_bh_enable();
2928
2929        return ret;
2930
2931fail:
2932        dev_kfree_skb(skb);
2933        return ret;
2934}
2935
2936static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2937                               u8 *peer, enum nl80211_tdls_operation oper)
2938{
2939        struct sta_info *sta;
2940        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2941
2942        if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2943                return -ENOTSUPP;
2944
2945        if (sdata->vif.type != NL80211_IFTYPE_STATION)
2946                return -EINVAL;
2947
2948        tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
2949
2950        switch (oper) {
2951        case NL80211_TDLS_ENABLE_LINK:
2952                rcu_read_lock();
2953                sta = sta_info_get(sdata, peer);
2954                if (!sta) {
2955                        rcu_read_unlock();
2956                        return -ENOLINK;
2957                }
2958
2959                set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
2960                rcu_read_unlock();
2961                break;
2962        case NL80211_TDLS_DISABLE_LINK:
2963                return sta_info_destroy_addr(sdata, peer);
2964        case NL80211_TDLS_TEARDOWN:
2965        case NL80211_TDLS_SETUP:
2966        case NL80211_TDLS_DISCOVERY_REQ:
2967                /* We don't support in-driver setup/teardown/discovery */
2968                return -ENOTSUPP;
2969        default:
2970                return -ENOTSUPP;
2971        }
2972
2973        return 0;
2974}
2975
2976static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
2977                                  const u8 *peer, u64 *cookie)
2978{
2979        struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2980        struct ieee80211_local *local = sdata->local;
2981        struct ieee80211_qos_hdr *nullfunc;
2982        struct sk_buff *skb;
2983        int size = sizeof(*nullfunc);
2984        __le16 fc;
2985        bool qos;
2986        struct ieee80211_tx_info *info;
2987        struct sta_info *sta;
2988
2989        rcu_read_lock();
2990        sta = sta_info_get(sdata, peer);
2991        if (sta) {
2992                qos = test_sta_flag(sta, WLAN_STA_WME);
2993                rcu_read_unlock();
2994        } else {
2995                rcu_read_unlock();
2996                return -ENOLINK;
2997        }
2998
2999        if (qos) {
3000                fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3001                                 IEEE80211_STYPE_QOS_NULLFUNC |
3002                                 IEEE80211_FCTL_FROMDS);
3003        } else {
3004                size -= 2;
3005                fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3006                                 IEEE80211_STYPE_NULLFUNC |
3007                                 IEEE80211_FCTL_FROMDS);
3008        }
3009
3010        skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3011        if (!skb)
3012                return -ENOMEM;
3013
3014        skb->dev = dev;
3015
3016        skb_reserve(skb, local->hw.extra_tx_headroom);
3017
3018        nullfunc = (void *) skb_put(skb, size);
3019        nullfunc->frame_control = fc;
3020        nullfunc->duration_id = 0;
3021        memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3022        memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3023        memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3024        nullfunc->seq_ctrl = 0;
3025
3026        info = IEEE80211_SKB_CB(skb);
3027
3028        info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3029                       IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3030
3031        skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3032        skb->priority = 7;
3033        if (qos)
3034                nullfunc->qos_ctrl = cpu_to_le16(7);
3035
3036        local_bh_disable();
3037        ieee80211_xmit(sdata, skb);
3038        local_bh_enable();
3039
3040        *cookie = (unsigned long) skb;
3041        return 0;
3042}
3043
3044static struct ieee80211_channel *
3045ieee80211_cfg_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
3046                          enum nl80211_channel_type *type)
3047{
3048        struct ieee80211_local *local = wiphy_priv(wiphy);
3049
3050        *type = local->_oper_channel_type;
3051        return local->oper_channel;
3052}
3053
3054#ifdef CONFIG_PM
3055static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3056{
3057        drv_set_wakeup(wiphy_priv(wiphy), enabled);
3058}
3059#endif
3060
3061struct cfg80211_ops mac80211_config_ops = {
3062        .add_virtual_intf = ieee80211_add_iface,
3063        .del_virtual_intf = ieee80211_del_iface,
3064        .change_virtual_intf = ieee80211_change_iface,
3065        .start_p2p_device = ieee80211_start_p2p_device,
3066        .stop_p2p_device = ieee80211_stop_p2p_device,
3067        .add_key = ieee80211_add_key,
3068        .del_key = ieee80211_del_key,
3069        .get_key = ieee80211_get_key,
3070        .set_default_key = ieee80211_config_default_key,
3071        .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3072        .start_ap = ieee80211_start_ap,
3073        .change_beacon = ieee80211_change_beacon,
3074        .stop_ap = ieee80211_stop_ap,
3075        .add_station = ieee80211_add_station,
3076        .del_station = ieee80211_del_station,
3077        .change_station = ieee80211_change_station,
3078        .get_station = ieee80211_get_station,
3079        .dump_station = ieee80211_dump_station,
3080        .dump_survey = ieee80211_dump_survey,
3081#ifdef CONFIG_MAC80211_MESH
3082        .add_mpath = ieee80211_add_mpath,
3083        .del_mpath = ieee80211_del_mpath,
3084        .change_mpath = ieee80211_change_mpath,
3085        .get_mpath = ieee80211_get_mpath,
3086        .dump_mpath = ieee80211_dump_mpath,
3087        .update_mesh_config = ieee80211_update_mesh_config,
3088        .get_mesh_config = ieee80211_get_mesh_config,
3089        .join_mesh = ieee80211_join_mesh,
3090        .leave_mesh = ieee80211_leave_mesh,
3091#endif
3092        .change_bss = ieee80211_change_bss,
3093        .set_txq_params = ieee80211_set_txq_params,
3094        .set_monitor_channel = ieee80211_set_monitor_channel,
3095        .suspend = ieee80211_suspend,
3096        .resume = ieee80211_resume,
3097        .scan = ieee80211_scan,
3098        .sched_scan_start = ieee80211_sched_scan_start,
3099        .sched_scan_stop = ieee80211_sched_scan_stop,
3100        .auth = ieee80211_auth,
3101        .assoc = ieee80211_assoc,
3102        .deauth = ieee80211_deauth,
3103        .disassoc = ieee80211_disassoc,
3104        .join_ibss = ieee80211_join_ibss,
3105        .leave_ibss = ieee80211_leave_ibss,
3106        .set_wiphy_params = ieee80211_set_wiphy_params,
3107        .set_tx_power = ieee80211_set_tx_power,
3108        .get_tx_power = ieee80211_get_tx_power,
3109        .set_wds_peer = ieee80211_set_wds_peer,
3110        .rfkill_poll = ieee80211_rfkill_poll,
3111        CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3112        CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3113        .set_power_mgmt = ieee80211_set_power_mgmt,
3114        .set_bitrate_mask = ieee80211_set_bitrate_mask,
3115        .remain_on_channel = ieee80211_remain_on_channel,
3116        .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3117        .mgmt_tx = ieee80211_mgmt_tx,
3118        .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3119        .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3120        .mgmt_frame_register = ieee80211_mgmt_frame_register,
3121        .set_antenna = ieee80211_set_antenna,
3122        .get_antenna = ieee80211_get_antenna,
3123        .set_ringparam = ieee80211_set_ringparam,
3124        .get_ringparam = ieee80211_get_ringparam,
3125        .set_rekey_data = ieee80211_set_rekey_data,
3126        .tdls_oper = ieee80211_tdls_oper,
3127        .tdls_mgmt = ieee80211_tdls_mgmt,
3128        .probe_client = ieee80211_probe_client,
3129        .set_noack_map = ieee80211_set_noack_map,
3130#ifdef CONFIG_PM
3131        .set_wakeup = ieee80211_set_wakeup,
3132#endif
3133        .get_et_sset_count = ieee80211_get_et_sset_count,
3134        .get_et_stats = ieee80211_get_et_stats,
3135        .get_et_strings = ieee80211_get_et_strings,
3136        .get_channel = ieee80211_cfg_get_channel,
3137};
3138
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