2 * mac80211 configuration hooks for cfg80211
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
6 * This file is GPLv2 as found in COPYING.
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"
23 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
25 enum nl80211_iftype type,
27 struct vif_params *params)
29 struct ieee80211_local *local = wiphy_priv(wiphy);
30 struct wireless_dev *wdev;
31 struct ieee80211_sub_if_data *sdata;
34 err = ieee80211_if_add(local, name, &wdev, type, params);
38 if (type == NL80211_IFTYPE_MONITOR && flags) {
39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
40 sdata->u.mntr_flags = *flags;
46 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
53 static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
61 ret = ieee80211_if_change_type(sdata, type);
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;
72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
75 if (ieee80211_sdata_running(sdata)) {
76 u32 mask = MONITOR_FLAG_COOK_FRAMES |
80 * Prohibit MONITOR_FLAG_COOK_FRAMES and
81 * MONITOR_FLAG_ACTIVE to be changed while the
83 * Else we would need to add a lot of cruft
84 * to update everything:
85 * cooked_mntrs, monitor and all fif_* counters
86 * reconfigure hardware
88 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
91 ieee80211_adjust_monitor_flags(sdata, -1);
92 sdata->u.mntr_flags = *flags;
93 ieee80211_adjust_monitor_flags(sdata, 1);
95 ieee80211_configure_filter(local);
98 * Because the interface is down, ieee80211_do_stop
99 * and ieee80211_do_open take care of "everything"
100 * mentioned in the comment above.
102 sdata->u.mntr_flags = *flags;
109 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
110 struct wireless_dev *wdev)
112 return ieee80211_do_open(wdev, true);
115 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
116 struct wireless_dev *wdev)
118 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
121 static int ieee80211_set_noack_map(struct wiphy *wiphy,
122 struct net_device *dev,
125 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
127 sdata->noack_map = noack_map;
131 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
132 u8 key_idx, bool pairwise, const u8 *mac_addr,
133 struct key_params *params)
135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
136 struct ieee80211_local *local = sdata->local;
137 struct sta_info *sta = NULL;
138 const struct ieee80211_cipher_scheme *cs = NULL;
139 struct ieee80211_key *key;
142 if (!ieee80211_sdata_running(sdata))
145 /* reject WEP and TKIP keys if WEP failed to initialize */
146 switch (params->cipher) {
147 case WLAN_CIPHER_SUITE_WEP40:
148 case WLAN_CIPHER_SUITE_TKIP:
149 case WLAN_CIPHER_SUITE_WEP104:
150 if (IS_ERR(local->wep_tx_tfm))
153 case WLAN_CIPHER_SUITE_CCMP:
154 case WLAN_CIPHER_SUITE_AES_CMAC:
155 case WLAN_CIPHER_SUITE_GCMP:
158 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
162 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
163 params->key, params->seq_len, params->seq,
169 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
171 mutex_lock(&local->sta_mtx);
174 if (ieee80211_vif_is_mesh(&sdata->vif))
175 sta = sta_info_get(sdata, mac_addr);
177 sta = sta_info_get_bss(sdata, mac_addr);
179 * The ASSOC test makes sure the driver is ready to
180 * receive the key. When wpa_supplicant has roamed
181 * using FT, it attempts to set the key before
182 * association has completed, this rejects that attempt
183 * so it will set the key again after assocation.
185 * TODO: accept the key if we have a station entry and
186 * add it to the device after the station.
188 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
189 ieee80211_key_free_unused(key);
195 switch (sdata->vif.type) {
196 case NL80211_IFTYPE_STATION:
197 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
198 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
200 case NL80211_IFTYPE_AP:
201 case NL80211_IFTYPE_AP_VLAN:
202 /* Keys without a station are used for TX only */
203 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
204 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
206 case NL80211_IFTYPE_ADHOC:
209 case NL80211_IFTYPE_MESH_POINT:
210 #ifdef CONFIG_MAC80211_MESH
211 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
212 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
215 case NL80211_IFTYPE_WDS:
216 case NL80211_IFTYPE_MONITOR:
217 case NL80211_IFTYPE_P2P_DEVICE:
218 case NL80211_IFTYPE_UNSPECIFIED:
219 case NUM_NL80211_IFTYPES:
220 case NL80211_IFTYPE_P2P_CLIENT:
221 case NL80211_IFTYPE_P2P_GO:
222 /* shouldn't happen */
228 sta->cipher_scheme = cs;
230 err = ieee80211_key_link(key, sdata, sta);
233 mutex_unlock(&local->sta_mtx);
238 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
239 u8 key_idx, bool pairwise, const u8 *mac_addr)
241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
242 struct ieee80211_local *local = sdata->local;
243 struct sta_info *sta;
244 struct ieee80211_key *key = NULL;
247 mutex_lock(&local->sta_mtx);
248 mutex_lock(&local->key_mtx);
253 sta = sta_info_get_bss(sdata, mac_addr);
258 key = key_mtx_dereference(local, sta->ptk[key_idx]);
260 key = key_mtx_dereference(local, sta->gtk[key_idx]);
262 key = key_mtx_dereference(local, sdata->keys[key_idx]);
269 ieee80211_key_free(key, true);
273 mutex_unlock(&local->key_mtx);
274 mutex_unlock(&local->sta_mtx);
279 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
280 u8 key_idx, bool pairwise, const u8 *mac_addr,
282 void (*callback)(void *cookie,
283 struct key_params *params))
285 struct ieee80211_sub_if_data *sdata;
286 struct sta_info *sta = NULL;
288 struct key_params params;
289 struct ieee80211_key *key = NULL;
295 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
300 sta = sta_info_get_bss(sdata, mac_addr);
305 key = rcu_dereference(sta->ptk[key_idx]);
306 else if (key_idx < NUM_DEFAULT_KEYS)
307 key = rcu_dereference(sta->gtk[key_idx]);
309 key = rcu_dereference(sdata->keys[key_idx]);
314 memset(¶ms, 0, sizeof(params));
316 params.cipher = key->conf.cipher;
318 switch (key->conf.cipher) {
319 case WLAN_CIPHER_SUITE_TKIP:
320 iv32 = key->u.tkip.tx.iv32;
321 iv16 = key->u.tkip.tx.iv16;
323 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
324 drv_get_tkip_seq(sdata->local,
325 key->conf.hw_key_idx,
328 seq[0] = iv16 & 0xff;
329 seq[1] = (iv16 >> 8) & 0xff;
330 seq[2] = iv32 & 0xff;
331 seq[3] = (iv32 >> 8) & 0xff;
332 seq[4] = (iv32 >> 16) & 0xff;
333 seq[5] = (iv32 >> 24) & 0xff;
337 case WLAN_CIPHER_SUITE_CCMP:
338 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
348 case WLAN_CIPHER_SUITE_AES_CMAC:
349 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
361 params.key = key->conf.key;
362 params.key_len = key->conf.keylen;
364 callback(cookie, ¶ms);
372 static int ieee80211_config_default_key(struct wiphy *wiphy,
373 struct net_device *dev,
374 u8 key_idx, bool uni,
377 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
379 ieee80211_set_default_key(sdata, key_idx, uni, multi);
384 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
385 struct net_device *dev,
388 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
390 ieee80211_set_default_mgmt_key(sdata, key_idx);
395 void sta_set_rate_info_tx(struct sta_info *sta,
396 const struct ieee80211_tx_rate *rate,
397 struct rate_info *rinfo)
400 if (rate->flags & IEEE80211_TX_RC_MCS) {
401 rinfo->flags |= RATE_INFO_FLAGS_MCS;
402 rinfo->mcs = rate->idx;
403 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
404 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
405 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
406 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
408 struct ieee80211_supported_band *sband;
409 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
412 sband = sta->local->hw.wiphy->bands[
413 ieee80211_get_sdata_band(sta->sdata)];
414 brate = sband->bitrates[rate->idx].bitrate;
415 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
417 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
418 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
419 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
420 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
421 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
422 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
423 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
424 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
427 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
431 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
432 rinfo->flags |= RATE_INFO_FLAGS_MCS;
433 rinfo->mcs = sta->last_rx_rate_idx;
434 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
435 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
436 rinfo->nss = sta->last_rx_rate_vht_nss;
437 rinfo->mcs = sta->last_rx_rate_idx;
439 struct ieee80211_supported_band *sband;
440 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
443 sband = sta->local->hw.wiphy->bands[
444 ieee80211_get_sdata_band(sta->sdata)];
445 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
446 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
449 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
450 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
451 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
452 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
453 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
454 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
455 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
456 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
457 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
458 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
461 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
463 struct ieee80211_sub_if_data *sdata = sta->sdata;
464 struct ieee80211_local *local = sdata->local;
465 struct timespec uptime;
469 sinfo->generation = sdata->local->sta_generation;
471 sinfo->filled = STATION_INFO_INACTIVE_TIME |
472 STATION_INFO_RX_BYTES64 |
473 STATION_INFO_TX_BYTES64 |
474 STATION_INFO_RX_PACKETS |
475 STATION_INFO_TX_PACKETS |
476 STATION_INFO_TX_RETRIES |
477 STATION_INFO_TX_FAILED |
478 STATION_INFO_TX_BITRATE |
479 STATION_INFO_RX_BITRATE |
480 STATION_INFO_RX_DROP_MISC |
481 STATION_INFO_BSS_PARAM |
482 STATION_INFO_CONNECTED_TIME |
483 STATION_INFO_STA_FLAGS |
484 STATION_INFO_BEACON_LOSS_COUNT;
486 do_posix_clock_monotonic_gettime(&uptime);
487 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
489 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
491 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
492 sinfo->tx_bytes += sta->tx_bytes[ac];
493 packets += sta->tx_packets[ac];
495 sinfo->tx_packets = packets;
496 sinfo->rx_bytes = sta->rx_bytes;
497 sinfo->rx_packets = sta->rx_packets;
498 sinfo->tx_retries = sta->tx_retry_count;
499 sinfo->tx_failed = sta->tx_retry_failed;
500 sinfo->rx_dropped_misc = sta->rx_dropped;
501 sinfo->beacon_loss_count = sta->beacon_loss_count;
503 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
504 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
505 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
506 if (!local->ops->get_rssi ||
507 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
508 sinfo->signal = (s8)sta->last_signal;
509 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
512 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
513 STATION_INFO_CHAIN_SIGNAL_AVG;
515 sinfo->chains = sta->chains;
516 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
517 sinfo->chain_signal[i] = sta->chain_signal_last[i];
518 sinfo->chain_signal_avg[i] =
519 (s8) -ewma_read(&sta->chain_signal_avg[i]);
523 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
524 sta_set_rate_info_rx(sta, &sinfo->rxrate);
526 if (ieee80211_vif_is_mesh(&sdata->vif)) {
527 #ifdef CONFIG_MAC80211_MESH
528 sinfo->filled |= STATION_INFO_LLID |
530 STATION_INFO_PLINK_STATE |
531 STATION_INFO_LOCAL_PM |
532 STATION_INFO_PEER_PM |
533 STATION_INFO_NONPEER_PM;
535 sinfo->llid = sta->llid;
536 sinfo->plid = sta->plid;
537 sinfo->plink_state = sta->plink_state;
538 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
539 sinfo->filled |= STATION_INFO_T_OFFSET;
540 sinfo->t_offset = sta->t_offset;
542 sinfo->local_pm = sta->local_pm;
543 sinfo->peer_pm = sta->peer_pm;
544 sinfo->nonpeer_pm = sta->nonpeer_pm;
548 sinfo->bss_param.flags = 0;
549 if (sdata->vif.bss_conf.use_cts_prot)
550 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
551 if (sdata->vif.bss_conf.use_short_preamble)
552 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
553 if (sdata->vif.bss_conf.use_short_slot)
554 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
555 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
556 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
558 sinfo->sta_flags.set = 0;
559 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
560 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
561 BIT(NL80211_STA_FLAG_WME) |
562 BIT(NL80211_STA_FLAG_MFP) |
563 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
564 BIT(NL80211_STA_FLAG_ASSOCIATED) |
565 BIT(NL80211_STA_FLAG_TDLS_PEER);
566 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
567 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
568 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
569 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
570 if (test_sta_flag(sta, WLAN_STA_WME))
571 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
572 if (test_sta_flag(sta, WLAN_STA_MFP))
573 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
574 if (test_sta_flag(sta, WLAN_STA_AUTH))
575 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
576 if (test_sta_flag(sta, WLAN_STA_ASSOC))
577 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
578 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
579 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
582 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
583 "rx_packets", "rx_bytes", "wep_weak_iv_count",
584 "rx_duplicates", "rx_fragments", "rx_dropped",
585 "tx_packets", "tx_bytes", "tx_fragments",
586 "tx_filtered", "tx_retry_failed", "tx_retries",
587 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
588 "channel", "noise", "ch_time", "ch_time_busy",
589 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
591 #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
593 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
594 struct net_device *dev,
597 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
600 if (sset == ETH_SS_STATS)
603 rv += drv_get_et_sset_count(sdata, sset);
610 static void ieee80211_get_et_stats(struct wiphy *wiphy,
611 struct net_device *dev,
612 struct ethtool_stats *stats,
615 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
616 struct ieee80211_chanctx_conf *chanctx_conf;
617 struct ieee80211_channel *channel;
618 struct sta_info *sta;
619 struct ieee80211_local *local = sdata->local;
620 struct station_info sinfo;
621 struct survey_info survey;
623 #define STA_STATS_SURVEY_LEN 7
625 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
627 #define ADD_STA_STATS(sta) \
629 data[i++] += sta->rx_packets; \
630 data[i++] += sta->rx_bytes; \
631 data[i++] += sta->wep_weak_iv_count; \
632 data[i++] += sta->num_duplicates; \
633 data[i++] += sta->rx_fragments; \
634 data[i++] += sta->rx_dropped; \
636 data[i++] += sinfo.tx_packets; \
637 data[i++] += sinfo.tx_bytes; \
638 data[i++] += sta->tx_fragments; \
639 data[i++] += sta->tx_filtered_count; \
640 data[i++] += sta->tx_retry_failed; \
641 data[i++] += sta->tx_retry_count; \
642 data[i++] += sta->beacon_loss_count; \
645 /* For Managed stations, find the single station based on BSSID
646 * and use that. For interface types, iterate through all available
647 * stations and add stats for any station that is assigned to this
651 mutex_lock(&local->sta_mtx);
653 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
654 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
656 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
660 sta_set_sinfo(sta, &sinfo);
665 data[i++] = sta->sta_state;
668 if (sinfo.filled & STATION_INFO_TX_BITRATE)
670 cfg80211_calculate_bitrate(&sinfo.txrate);
672 if (sinfo.filled & STATION_INFO_RX_BITRATE)
674 cfg80211_calculate_bitrate(&sinfo.rxrate);
677 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
678 data[i] = (u8)sinfo.signal_avg;
681 list_for_each_entry(sta, &local->sta_list, list) {
682 /* Make sure this station belongs to the proper dev */
683 if (sta->sdata->dev != dev)
687 sta_set_sinfo(sta, &sinfo);
694 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
695 /* Get survey stats for current channel */
699 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
701 channel = chanctx_conf->def.chan;
710 if (drv_get_survey(local, q, &survey) != 0) {
715 } while (channel != survey.channel);
719 data[i++] = survey.channel->center_freq;
722 if (survey.filled & SURVEY_INFO_NOISE_DBM)
723 data[i++] = (u8)survey.noise;
726 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
727 data[i++] = survey.channel_time;
730 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
731 data[i++] = survey.channel_time_busy;
734 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
735 data[i++] = survey.channel_time_ext_busy;
738 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
739 data[i++] = survey.channel_time_rx;
742 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
743 data[i++] = survey.channel_time_tx;
747 mutex_unlock(&local->sta_mtx);
749 if (WARN_ON(i != STA_STATS_LEN))
752 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
755 static void ieee80211_get_et_strings(struct wiphy *wiphy,
756 struct net_device *dev,
759 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
760 int sz_sta_stats = 0;
762 if (sset == ETH_SS_STATS) {
763 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
764 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
766 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
769 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
770 int idx, u8 *mac, struct station_info *sinfo)
772 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
773 struct ieee80211_local *local = sdata->local;
774 struct sta_info *sta;
777 mutex_lock(&local->sta_mtx);
779 sta = sta_info_get_by_idx(sdata, idx);
782 memcpy(mac, sta->sta.addr, ETH_ALEN);
783 sta_set_sinfo(sta, sinfo);
786 mutex_unlock(&local->sta_mtx);
791 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
792 int idx, struct survey_info *survey)
794 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
796 return drv_get_survey(local, idx, survey);
799 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
800 u8 *mac, struct station_info *sinfo)
802 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
803 struct ieee80211_local *local = sdata->local;
804 struct sta_info *sta;
807 mutex_lock(&local->sta_mtx);
809 sta = sta_info_get_bss(sdata, mac);
812 sta_set_sinfo(sta, sinfo);
815 mutex_unlock(&local->sta_mtx);
820 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
821 struct cfg80211_chan_def *chandef)
823 struct ieee80211_local *local = wiphy_priv(wiphy);
824 struct ieee80211_sub_if_data *sdata;
827 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
830 mutex_lock(&local->iflist_mtx);
831 if (local->use_chanctx) {
832 sdata = rcu_dereference_protected(
833 local->monitor_sdata,
834 lockdep_is_held(&local->iflist_mtx));
836 ieee80211_vif_release_channel(sdata);
837 ret = ieee80211_vif_use_channel(sdata, chandef,
838 IEEE80211_CHANCTX_EXCLUSIVE);
840 } else if (local->open_count == local->monitors) {
841 local->_oper_chandef = *chandef;
842 ieee80211_hw_config(local, 0);
846 local->monitor_chandef = *chandef;
847 mutex_unlock(&local->iflist_mtx);
852 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
853 const u8 *resp, size_t resp_len)
855 struct probe_resp *new, *old;
857 if (!resp || !resp_len)
860 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
862 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
867 memcpy(new->data, resp, resp_len);
869 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
871 kfree_rcu(old, rcu_head);
876 int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
877 struct cfg80211_beacon_data *params)
879 struct beacon_data *new, *old;
880 int new_head_len, new_tail_len;
882 u32 changed = BSS_CHANGED_BEACON;
884 old = sdata_dereference(sdata->u.ap.beacon, sdata);
887 /* Need to have a beacon head if we don't have one yet */
888 if (!params->head && !old)
891 /* new or old head? */
893 new_head_len = params->head_len;
895 new_head_len = old->head_len;
897 /* new or old tail? */
898 if (params->tail || !old)
899 /* params->tail_len will be zero for !params->tail */
900 new_tail_len = params->tail_len;
902 new_tail_len = old->tail_len;
904 size = sizeof(*new) + new_head_len + new_tail_len;
906 new = kzalloc(size, GFP_KERNEL);
910 /* start filling the new info now */
913 * pointers go into the block we allocated,
914 * memory is | beacon_data | head | tail |
916 new->head = ((u8 *) new) + sizeof(*new);
917 new->tail = new->head + new_head_len;
918 new->head_len = new_head_len;
919 new->tail_len = new_tail_len;
923 memcpy(new->head, params->head, new_head_len);
925 memcpy(new->head, old->head, new_head_len);
927 /* copy in optional tail */
929 memcpy(new->tail, params->tail, new_tail_len);
932 memcpy(new->tail, old->tail, new_tail_len);
934 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
935 params->probe_resp_len);
939 changed |= BSS_CHANGED_AP_PROBE_RESP;
941 rcu_assign_pointer(sdata->u.ap.beacon, new);
944 kfree_rcu(old, rcu_head);
949 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
950 struct cfg80211_ap_settings *params)
952 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
953 struct beacon_data *old;
954 struct ieee80211_sub_if_data *vlan;
955 u32 changed = BSS_CHANGED_BEACON_INT |
956 BSS_CHANGED_BEACON_ENABLED |
962 old = sdata_dereference(sdata->u.ap.beacon, sdata);
966 /* TODO: make hostapd tell us what it wants */
967 sdata->smps_mode = IEEE80211_SMPS_OFF;
968 sdata->needed_rx_chains = sdata->local->rx_chains;
969 sdata->radar_required = params->radar_required;
971 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef,
972 IEEE80211_CHANCTX_SHARED);
975 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
978 * Apply control port protocol, this allows us to
979 * not encrypt dynamic WEP control frames.
981 sdata->control_port_protocol = params->crypto.control_port_ethertype;
982 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
983 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
987 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
988 vlan->control_port_protocol =
989 params->crypto.control_port_ethertype;
990 vlan->control_port_no_encrypt =
991 params->crypto.control_port_no_encrypt;
992 vlan->encrypt_headroom =
993 ieee80211_cs_headroom(sdata->local,
998 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
999 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1000 sdata->vif.bss_conf.enable_beacon = true;
1002 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1003 if (params->ssid_len)
1004 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1006 sdata->vif.bss_conf.hidden_ssid =
1007 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1009 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1010 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1011 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1012 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1013 if (params->p2p_opp_ps)
1014 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1015 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1017 err = ieee80211_assign_beacon(sdata, ¶ms->beacon);
1022 err = drv_start_ap(sdata->local, sdata);
1024 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1027 kfree_rcu(old, rcu_head);
1028 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1032 ieee80211_bss_info_change_notify(sdata, changed);
1034 netif_carrier_on(dev);
1035 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1036 netif_carrier_on(vlan->dev);
1041 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1042 struct cfg80211_beacon_data *params)
1044 struct ieee80211_sub_if_data *sdata;
1045 struct beacon_data *old;
1048 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1050 /* don't allow changing the beacon while CSA is in place - offset
1051 * of channel switch counter may change
1053 if (sdata->vif.csa_active)
1056 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1060 err = ieee80211_assign_beacon(sdata, params);
1063 ieee80211_bss_info_change_notify(sdata, err);
1067 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1069 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1070 struct ieee80211_sub_if_data *vlan;
1071 struct ieee80211_local *local = sdata->local;
1072 struct beacon_data *old_beacon;
1073 struct probe_resp *old_probe_resp;
1074 struct cfg80211_chan_def chandef;
1076 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1079 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1081 /* abort any running channel switch */
1082 sdata->vif.csa_active = false;
1083 kfree(sdata->u.ap.next_beacon);
1084 sdata->u.ap.next_beacon = NULL;
1086 cancel_work_sync(&sdata->u.ap.request_smps_work);
1088 /* turn off carrier for this interface and dependent VLANs */
1089 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1090 netif_carrier_off(vlan->dev);
1091 netif_carrier_off(dev);
1093 /* remove beacon and probe response */
1094 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1095 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1096 kfree_rcu(old_beacon, rcu_head);
1098 kfree_rcu(old_probe_resp, rcu_head);
1100 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1101 sta_info_flush(vlan);
1102 sta_info_flush(sdata);
1104 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1105 ieee80211_free_keys(vlan);
1106 ieee80211_free_keys(sdata);
1108 sdata->vif.bss_conf.enable_beacon = false;
1109 sdata->vif.bss_conf.ssid_len = 0;
1110 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1111 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1113 if (sdata->wdev.cac_started) {
1114 chandef = sdata->vif.bss_conf.chandef;
1115 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1116 cfg80211_cac_event(sdata->dev, &chandef,
1117 NL80211_RADAR_CAC_ABORTED,
1121 drv_stop_ap(sdata->local, sdata);
1123 /* free all potentially still buffered bcast frames */
1124 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1125 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1127 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1128 ieee80211_vif_release_channel(sdata);
1133 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1134 struct iapp_layer2_update {
1135 u8 da[ETH_ALEN]; /* broadcast */
1136 u8 sa[ETH_ALEN]; /* STA addr */
1144 static void ieee80211_send_layer2_update(struct sta_info *sta)
1146 struct iapp_layer2_update *msg;
1147 struct sk_buff *skb;
1149 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1152 skb = dev_alloc_skb(sizeof(*msg));
1155 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1157 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1158 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1160 eth_broadcast_addr(msg->da);
1161 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1162 msg->len = htons(6);
1164 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1165 msg->control = 0xaf; /* XID response lsb.1111F101.
1166 * F=0 (no poll command; unsolicited frame) */
1167 msg->xid_info[0] = 0x81; /* XID format identifier */
1168 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1169 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1171 skb->dev = sta->sdata->dev;
1172 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1173 memset(skb->cb, 0, sizeof(skb->cb));
1177 static int sta_apply_auth_flags(struct ieee80211_local *local,
1178 struct sta_info *sta,
1183 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1184 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1185 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1186 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1191 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1192 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1193 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1194 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1199 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1200 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1201 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1202 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1203 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1210 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1211 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1212 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1213 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1218 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1219 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1220 test_sta_flag(sta, WLAN_STA_AUTH)) {
1221 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1229 static int sta_apply_parameters(struct ieee80211_local *local,
1230 struct sta_info *sta,
1231 struct station_parameters *params)
1234 struct ieee80211_supported_band *sband;
1235 struct ieee80211_sub_if_data *sdata = sta->sdata;
1236 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1239 sband = local->hw.wiphy->bands[band];
1241 mask = params->sta_flags_mask;
1242 set = params->sta_flags_set;
1244 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1246 * In mesh mode, ASSOCIATED isn't part of the nl80211
1247 * API but must follow AUTHENTICATED for driver state.
1249 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1250 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1251 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1252 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1253 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1255 * TDLS -- everything follows authorized, but
1256 * only becoming authorized is possible, not
1259 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1260 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1261 BIT(NL80211_STA_FLAG_ASSOCIATED);
1262 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1263 BIT(NL80211_STA_FLAG_ASSOCIATED);
1267 ret = sta_apply_auth_flags(local, sta, mask, set);
1271 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1272 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1273 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1275 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1278 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1279 if (set & BIT(NL80211_STA_FLAG_WME)) {
1280 set_sta_flag(sta, WLAN_STA_WME);
1281 sta->sta.wme = true;
1283 clear_sta_flag(sta, WLAN_STA_WME);
1284 sta->sta.wme = false;
1288 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1289 if (set & BIT(NL80211_STA_FLAG_MFP))
1290 set_sta_flag(sta, WLAN_STA_MFP);
1292 clear_sta_flag(sta, WLAN_STA_MFP);
1295 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1296 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1297 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1299 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1302 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1303 sta->sta.uapsd_queues = params->uapsd_queues;
1304 sta->sta.max_sp = params->max_sp;
1308 * cfg80211 validates this (1-2007) and allows setting the AID
1309 * only when creating a new station entry
1312 sta->sta.aid = params->aid;
1315 * Some of the following updates would be racy if called on an
1316 * existing station, via ieee80211_change_station(). However,
1317 * all such changes are rejected by cfg80211 except for updates
1318 * changing the supported rates on an existing but not yet used
1322 if (params->listen_interval >= 0)
1323 sta->listen_interval = params->listen_interval;
1325 if (params->supported_rates) {
1326 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1327 sband, params->supported_rates,
1328 params->supported_rates_len,
1329 &sta->sta.supp_rates[band]);
1332 if (params->ht_capa)
1333 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1334 params->ht_capa, sta);
1336 if (params->vht_capa)
1337 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1338 params->vht_capa, sta);
1340 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1341 #ifdef CONFIG_MAC80211_MESH
1344 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1345 switch (params->plink_state) {
1346 case NL80211_PLINK_ESTAB:
1347 if (sta->plink_state != NL80211_PLINK_ESTAB)
1348 changed = mesh_plink_inc_estab_count(
1350 sta->plink_state = params->plink_state;
1352 ieee80211_mps_sta_status_update(sta);
1353 changed |= ieee80211_mps_set_sta_local_pm(sta,
1354 sdata->u.mesh.mshcfg.power_mode);
1356 case NL80211_PLINK_LISTEN:
1357 case NL80211_PLINK_BLOCKED:
1358 case NL80211_PLINK_OPN_SNT:
1359 case NL80211_PLINK_OPN_RCVD:
1360 case NL80211_PLINK_CNF_RCVD:
1361 case NL80211_PLINK_HOLDING:
1362 if (sta->plink_state == NL80211_PLINK_ESTAB)
1363 changed = mesh_plink_dec_estab_count(
1365 sta->plink_state = params->plink_state;
1367 ieee80211_mps_sta_status_update(sta);
1368 changed |= ieee80211_mps_set_sta_local_pm(sta,
1369 NL80211_MESH_POWER_UNKNOWN);
1377 switch (params->plink_action) {
1378 case NL80211_PLINK_ACTION_NO_ACTION:
1381 case NL80211_PLINK_ACTION_OPEN:
1382 changed |= mesh_plink_open(sta);
1384 case NL80211_PLINK_ACTION_BLOCK:
1385 changed |= mesh_plink_block(sta);
1389 if (params->local_pm)
1391 ieee80211_mps_set_sta_local_pm(sta,
1393 ieee80211_mbss_info_change_notify(sdata, changed);
1400 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1401 u8 *mac, struct station_parameters *params)
1403 struct ieee80211_local *local = wiphy_priv(wiphy);
1404 struct sta_info *sta;
1405 struct ieee80211_sub_if_data *sdata;
1410 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1412 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1413 sdata->vif.type != NL80211_IFTYPE_AP)
1416 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1418 if (ether_addr_equal(mac, sdata->vif.addr))
1421 if (is_multicast_ether_addr(mac))
1424 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1429 * defaults -- if userspace wants something else we'll
1430 * change it accordingly in sta_apply_parameters()
1432 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1433 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1434 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1437 err = sta_apply_parameters(local, sta, params);
1439 sta_info_free(local, sta);
1444 * for TDLS, rate control should be initialized only when
1445 * rates are known and station is marked authorized
1447 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1448 rate_control_rate_init(sta);
1450 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1451 sdata->vif.type == NL80211_IFTYPE_AP;
1453 err = sta_info_insert_rcu(sta);
1460 ieee80211_send_layer2_update(sta);
1467 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1470 struct ieee80211_sub_if_data *sdata;
1472 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1475 return sta_info_destroy_addr_bss(sdata, mac);
1477 sta_info_flush(sdata);
1481 static int ieee80211_change_station(struct wiphy *wiphy,
1482 struct net_device *dev, u8 *mac,
1483 struct station_parameters *params)
1485 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1486 struct ieee80211_local *local = wiphy_priv(wiphy);
1487 struct sta_info *sta;
1488 struct ieee80211_sub_if_data *vlansdata;
1489 enum cfg80211_station_type statype;
1492 mutex_lock(&local->sta_mtx);
1494 sta = sta_info_get_bss(sdata, mac);
1500 switch (sdata->vif.type) {
1501 case NL80211_IFTYPE_MESH_POINT:
1502 if (sdata->u.mesh.user_mpm)
1503 statype = CFG80211_STA_MESH_PEER_USER;
1505 statype = CFG80211_STA_MESH_PEER_KERNEL;
1507 case NL80211_IFTYPE_ADHOC:
1508 statype = CFG80211_STA_IBSS;
1510 case NL80211_IFTYPE_STATION:
1511 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1512 statype = CFG80211_STA_AP_STA;
1515 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1516 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1518 statype = CFG80211_STA_TDLS_PEER_SETUP;
1520 case NL80211_IFTYPE_AP:
1521 case NL80211_IFTYPE_AP_VLAN:
1522 statype = CFG80211_STA_AP_CLIENT;
1529 err = cfg80211_check_station_change(wiphy, params, statype);
1533 if (params->vlan && params->vlan != sta->sdata->dev) {
1534 bool prev_4addr = false;
1535 bool new_4addr = false;
1537 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1539 if (params->vlan->ieee80211_ptr->use_4addr) {
1540 if (vlansdata->u.vlan.sta) {
1545 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1549 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1550 sta->sdata->u.vlan.sta) {
1551 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1555 sta->sdata = vlansdata;
1557 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1558 prev_4addr != new_4addr) {
1560 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1562 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1565 ieee80211_send_layer2_update(sta);
1568 err = sta_apply_parameters(local, sta, params);
1572 /* When peer becomes authorized, init rate control as well */
1573 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1574 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1575 rate_control_rate_init(sta);
1577 mutex_unlock(&local->sta_mtx);
1579 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1580 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1581 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1582 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1583 sta_info_tx_streams(sta) != 1) {
1585 "%pM just authorized and MIMO capable - update SMPS\n",
1587 ieee80211_send_smps_action(sta->sdata,
1588 sta->sdata->bss->req_smps,
1590 sta->sdata->vif.bss_conf.bssid);
1593 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1594 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1595 ieee80211_recalc_ps(local, -1);
1596 ieee80211_recalc_ps_vif(sdata);
1601 mutex_unlock(&local->sta_mtx);
1605 #ifdef CONFIG_MAC80211_MESH
1606 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1607 u8 *dst, u8 *next_hop)
1609 struct ieee80211_sub_if_data *sdata;
1610 struct mesh_path *mpath;
1611 struct sta_info *sta;
1613 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1616 sta = sta_info_get(sdata, next_hop);
1622 mpath = mesh_path_add(sdata, dst);
1623 if (IS_ERR(mpath)) {
1625 return PTR_ERR(mpath);
1628 mesh_path_fix_nexthop(mpath, sta);
1634 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1637 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1640 return mesh_path_del(sdata, dst);
1642 mesh_path_flush_by_iface(sdata);
1646 static int ieee80211_change_mpath(struct wiphy *wiphy,
1647 struct net_device *dev,
1648 u8 *dst, u8 *next_hop)
1650 struct ieee80211_sub_if_data *sdata;
1651 struct mesh_path *mpath;
1652 struct sta_info *sta;
1654 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1658 sta = sta_info_get(sdata, next_hop);
1664 mpath = mesh_path_lookup(sdata, dst);
1670 mesh_path_fix_nexthop(mpath, sta);
1676 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1677 struct mpath_info *pinfo)
1679 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1682 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1684 memset(next_hop, 0, ETH_ALEN);
1686 memset(pinfo, 0, sizeof(*pinfo));
1688 pinfo->generation = mesh_paths_generation;
1690 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1693 MPATH_INFO_EXPTIME |
1694 MPATH_INFO_DISCOVERY_TIMEOUT |
1695 MPATH_INFO_DISCOVERY_RETRIES |
1698 pinfo->frame_qlen = mpath->frame_queue.qlen;
1699 pinfo->sn = mpath->sn;
1700 pinfo->metric = mpath->metric;
1701 if (time_before(jiffies, mpath->exp_time))
1702 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1703 pinfo->discovery_timeout =
1704 jiffies_to_msecs(mpath->discovery_timeout);
1705 pinfo->discovery_retries = mpath->discovery_retries;
1706 if (mpath->flags & MESH_PATH_ACTIVE)
1707 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1708 if (mpath->flags & MESH_PATH_RESOLVING)
1709 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1710 if (mpath->flags & MESH_PATH_SN_VALID)
1711 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1712 if (mpath->flags & MESH_PATH_FIXED)
1713 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1714 if (mpath->flags & MESH_PATH_RESOLVED)
1715 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1718 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1719 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1722 struct ieee80211_sub_if_data *sdata;
1723 struct mesh_path *mpath;
1725 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1728 mpath = mesh_path_lookup(sdata, dst);
1733 memcpy(dst, mpath->dst, ETH_ALEN);
1734 mpath_set_pinfo(mpath, next_hop, pinfo);
1739 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1740 int idx, u8 *dst, u8 *next_hop,
1741 struct mpath_info *pinfo)
1743 struct ieee80211_sub_if_data *sdata;
1744 struct mesh_path *mpath;
1746 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1749 mpath = mesh_path_lookup_by_idx(sdata, idx);
1754 memcpy(dst, mpath->dst, ETH_ALEN);
1755 mpath_set_pinfo(mpath, next_hop, pinfo);
1760 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1761 struct net_device *dev,
1762 struct mesh_config *conf)
1764 struct ieee80211_sub_if_data *sdata;
1765 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1767 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1771 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1773 return (mask >> (parm-1)) & 0x1;
1776 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1777 const struct mesh_setup *setup)
1781 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1782 struct ieee80211_sub_if_data, u.mesh);
1784 /* allocate information elements */
1788 if (setup->ie_len) {
1789 new_ie = kmemdup(setup->ie, setup->ie_len,
1794 ifmsh->ie_len = setup->ie_len;
1798 /* now copy the rest of the setup parameters */
1799 ifmsh->mesh_id_len = setup->mesh_id_len;
1800 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1801 ifmsh->mesh_sp_id = setup->sync_method;
1802 ifmsh->mesh_pp_id = setup->path_sel_proto;
1803 ifmsh->mesh_pm_id = setup->path_metric;
1804 ifmsh->user_mpm = setup->user_mpm;
1805 ifmsh->mesh_auth_id = setup->auth_id;
1806 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1807 if (setup->is_authenticated)
1808 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1809 if (setup->is_secure)
1810 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1812 /* mcast rate setting in Mesh Node */
1813 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1814 sizeof(setup->mcast_rate));
1815 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1817 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1818 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1823 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1824 struct net_device *dev, u32 mask,
1825 const struct mesh_config *nconf)
1827 struct mesh_config *conf;
1828 struct ieee80211_sub_if_data *sdata;
1829 struct ieee80211_if_mesh *ifmsh;
1831 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1832 ifmsh = &sdata->u.mesh;
1834 /* Set the config options which we are interested in setting */
1835 conf = &(sdata->u.mesh.mshcfg);
1836 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1837 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1838 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1839 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1840 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1841 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1842 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1843 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1844 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1845 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1846 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1847 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1848 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1849 conf->element_ttl = nconf->element_ttl;
1850 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1851 if (ifmsh->user_mpm)
1853 conf->auto_open_plinks = nconf->auto_open_plinks;
1855 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1856 conf->dot11MeshNbrOffsetMaxNeighbor =
1857 nconf->dot11MeshNbrOffsetMaxNeighbor;
1858 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1859 conf->dot11MeshHWMPmaxPREQretries =
1860 nconf->dot11MeshHWMPmaxPREQretries;
1861 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1862 conf->path_refresh_time = nconf->path_refresh_time;
1863 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1864 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1865 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1866 conf->dot11MeshHWMPactivePathTimeout =
1867 nconf->dot11MeshHWMPactivePathTimeout;
1868 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1869 conf->dot11MeshHWMPpreqMinInterval =
1870 nconf->dot11MeshHWMPpreqMinInterval;
1871 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1872 conf->dot11MeshHWMPperrMinInterval =
1873 nconf->dot11MeshHWMPperrMinInterval;
1874 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1876 conf->dot11MeshHWMPnetDiameterTraversalTime =
1877 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1878 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1879 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1880 ieee80211_mesh_root_setup(ifmsh);
1882 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1883 /* our current gate announcement implementation rides on root
1884 * announcements, so require this ifmsh to also be a root node
1886 if (nconf->dot11MeshGateAnnouncementProtocol &&
1887 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1888 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1889 ieee80211_mesh_root_setup(ifmsh);
1891 conf->dot11MeshGateAnnouncementProtocol =
1892 nconf->dot11MeshGateAnnouncementProtocol;
1894 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1895 conf->dot11MeshHWMPRannInterval =
1896 nconf->dot11MeshHWMPRannInterval;
1897 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1898 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1899 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1900 /* our RSSI threshold implementation is supported only for
1901 * devices that report signal in dBm.
1903 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1905 conf->rssi_threshold = nconf->rssi_threshold;
1907 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1908 conf->ht_opmode = nconf->ht_opmode;
1909 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1910 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1912 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1913 conf->dot11MeshHWMPactivePathToRootTimeout =
1914 nconf->dot11MeshHWMPactivePathToRootTimeout;
1915 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1916 conf->dot11MeshHWMProotInterval =
1917 nconf->dot11MeshHWMProotInterval;
1918 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1919 conf->dot11MeshHWMPconfirmationInterval =
1920 nconf->dot11MeshHWMPconfirmationInterval;
1921 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1922 conf->power_mode = nconf->power_mode;
1923 ieee80211_mps_local_status_update(sdata);
1925 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1926 conf->dot11MeshAwakeWindowDuration =
1927 nconf->dot11MeshAwakeWindowDuration;
1928 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1929 conf->plink_timeout = nconf->plink_timeout;
1930 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1934 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1935 const struct mesh_config *conf,
1936 const struct mesh_setup *setup)
1938 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1939 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1942 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1943 err = copy_mesh_setup(ifmsh, setup);
1947 /* can mesh use other SMPS modes? */
1948 sdata->smps_mode = IEEE80211_SMPS_OFF;
1949 sdata->needed_rx_chains = sdata->local->rx_chains;
1951 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1952 IEEE80211_CHANCTX_SHARED);
1956 return ieee80211_start_mesh(sdata);
1959 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1961 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1963 ieee80211_stop_mesh(sdata);
1964 ieee80211_vif_release_channel(sdata);
1970 static int ieee80211_change_bss(struct wiphy *wiphy,
1971 struct net_device *dev,
1972 struct bss_parameters *params)
1974 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1975 enum ieee80211_band band;
1978 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1981 band = ieee80211_get_sdata_band(sdata);
1983 if (params->use_cts_prot >= 0) {
1984 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1985 changed |= BSS_CHANGED_ERP_CTS_PROT;
1987 if (params->use_short_preamble >= 0) {
1988 sdata->vif.bss_conf.use_short_preamble =
1989 params->use_short_preamble;
1990 changed |= BSS_CHANGED_ERP_PREAMBLE;
1993 if (!sdata->vif.bss_conf.use_short_slot &&
1994 band == IEEE80211_BAND_5GHZ) {
1995 sdata->vif.bss_conf.use_short_slot = true;
1996 changed |= BSS_CHANGED_ERP_SLOT;
1999 if (params->use_short_slot_time >= 0) {
2000 sdata->vif.bss_conf.use_short_slot =
2001 params->use_short_slot_time;
2002 changed |= BSS_CHANGED_ERP_SLOT;
2005 if (params->basic_rates) {
2006 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2008 params->basic_rates,
2009 params->basic_rates_len,
2010 &sdata->vif.bss_conf.basic_rates);
2011 changed |= BSS_CHANGED_BASIC_RATES;
2014 if (params->ap_isolate >= 0) {
2015 if (params->ap_isolate)
2016 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2018 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2021 if (params->ht_opmode >= 0) {
2022 sdata->vif.bss_conf.ht_operation_mode =
2023 (u16) params->ht_opmode;
2024 changed |= BSS_CHANGED_HT;
2027 if (params->p2p_ctwindow >= 0) {
2028 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2029 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2030 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2031 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2032 changed |= BSS_CHANGED_P2P_PS;
2035 if (params->p2p_opp_ps > 0) {
2036 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2037 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2038 changed |= BSS_CHANGED_P2P_PS;
2039 } else if (params->p2p_opp_ps == 0) {
2040 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2041 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2042 changed |= BSS_CHANGED_P2P_PS;
2045 ieee80211_bss_info_change_notify(sdata, changed);
2050 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2051 struct net_device *dev,
2052 struct ieee80211_txq_params *params)
2054 struct ieee80211_local *local = wiphy_priv(wiphy);
2055 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2056 struct ieee80211_tx_queue_params p;
2058 if (!local->ops->conf_tx)
2061 if (local->hw.queues < IEEE80211_NUM_ACS)
2064 memset(&p, 0, sizeof(p));
2065 p.aifs = params->aifs;
2066 p.cw_max = params->cwmax;
2067 p.cw_min = params->cwmin;
2068 p.txop = params->txop;
2071 * Setting tx queue params disables u-apsd because it's only
2072 * called in master mode.
2076 sdata->tx_conf[params->ac] = p;
2077 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2078 wiphy_debug(local->hw.wiphy,
2079 "failed to set TX queue parameters for AC %d\n",
2084 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2090 static int ieee80211_suspend(struct wiphy *wiphy,
2091 struct cfg80211_wowlan *wowlan)
2093 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2096 static int ieee80211_resume(struct wiphy *wiphy)
2098 return __ieee80211_resume(wiphy_priv(wiphy));
2101 #define ieee80211_suspend NULL
2102 #define ieee80211_resume NULL
2105 static int ieee80211_scan(struct wiphy *wiphy,
2106 struct cfg80211_scan_request *req)
2108 struct ieee80211_sub_if_data *sdata;
2110 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2112 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2113 case NL80211_IFTYPE_STATION:
2114 case NL80211_IFTYPE_ADHOC:
2115 case NL80211_IFTYPE_MESH_POINT:
2116 case NL80211_IFTYPE_P2P_CLIENT:
2117 case NL80211_IFTYPE_P2P_DEVICE:
2119 case NL80211_IFTYPE_P2P_GO:
2120 if (sdata->local->ops->hw_scan)
2123 * FIXME: implement NoA while scanning in software,
2124 * for now fall through to allow scanning only when
2125 * beaconing hasn't been configured yet
2127 case NL80211_IFTYPE_AP:
2129 * If the scan has been forced (and the driver supports
2130 * forcing), don't care about being beaconing already.
2131 * This will create problems to the attached stations (e.g. all
2132 * the frames sent while scanning on other channel will be
2135 if (sdata->u.ap.beacon &&
2136 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2137 !(req->flags & NL80211_SCAN_FLAG_AP)))
2144 return ieee80211_request_scan(sdata, req);
2148 ieee80211_sched_scan_start(struct wiphy *wiphy,
2149 struct net_device *dev,
2150 struct cfg80211_sched_scan_request *req)
2152 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2154 if (!sdata->local->ops->sched_scan_start)
2157 return ieee80211_request_sched_scan_start(sdata, req);
2161 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2165 if (!sdata->local->ops->sched_scan_stop)
2168 return ieee80211_request_sched_scan_stop(sdata);
2171 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2172 struct cfg80211_auth_request *req)
2174 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2177 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2178 struct cfg80211_assoc_request *req)
2180 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2183 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2184 struct cfg80211_deauth_request *req)
2186 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2189 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2190 struct cfg80211_disassoc_request *req)
2192 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2195 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2196 struct cfg80211_ibss_params *params)
2198 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2201 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2203 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2206 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2207 int rate[IEEE80211_NUM_BANDS])
2209 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2211 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2212 sizeof(int) * IEEE80211_NUM_BANDS);
2217 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2219 struct ieee80211_local *local = wiphy_priv(wiphy);
2222 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2223 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2229 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2230 err = drv_set_coverage_class(local, wiphy->coverage_class);
2236 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2237 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2243 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2244 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2246 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2248 if (changed & WIPHY_PARAM_RETRY_LONG) {
2249 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2251 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2254 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2255 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2260 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2261 struct wireless_dev *wdev,
2262 enum nl80211_tx_power_setting type, int mbm)
2264 struct ieee80211_local *local = wiphy_priv(wiphy);
2265 struct ieee80211_sub_if_data *sdata;
2268 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2271 case NL80211_TX_POWER_AUTOMATIC:
2272 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2274 case NL80211_TX_POWER_LIMITED:
2275 case NL80211_TX_POWER_FIXED:
2276 if (mbm < 0 || (mbm % 100))
2278 sdata->user_power_level = MBM_TO_DBM(mbm);
2282 ieee80211_recalc_txpower(sdata);
2288 case NL80211_TX_POWER_AUTOMATIC:
2289 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2291 case NL80211_TX_POWER_LIMITED:
2292 case NL80211_TX_POWER_FIXED:
2293 if (mbm < 0 || (mbm % 100))
2295 local->user_power_level = MBM_TO_DBM(mbm);
2299 mutex_lock(&local->iflist_mtx);
2300 list_for_each_entry(sdata, &local->interfaces, list)
2301 sdata->user_power_level = local->user_power_level;
2302 list_for_each_entry(sdata, &local->interfaces, list)
2303 ieee80211_recalc_txpower(sdata);
2304 mutex_unlock(&local->iflist_mtx);
2309 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2310 struct wireless_dev *wdev,
2313 struct ieee80211_local *local = wiphy_priv(wiphy);
2314 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2316 if (!local->use_chanctx)
2317 *dbm = local->hw.conf.power_level;
2319 *dbm = sdata->vif.bss_conf.txpower;
2324 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2327 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2329 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2334 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2336 struct ieee80211_local *local = wiphy_priv(wiphy);
2338 drv_rfkill_poll(local);
2341 #ifdef CONFIG_NL80211_TESTMODE
2342 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2343 struct wireless_dev *wdev,
2344 void *data, int len)
2346 struct ieee80211_local *local = wiphy_priv(wiphy);
2347 struct ieee80211_vif *vif = NULL;
2349 if (!local->ops->testmode_cmd)
2353 struct ieee80211_sub_if_data *sdata;
2355 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2356 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2360 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2363 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2364 struct sk_buff *skb,
2365 struct netlink_callback *cb,
2366 void *data, int len)
2368 struct ieee80211_local *local = wiphy_priv(wiphy);
2370 if (!local->ops->testmode_dump)
2373 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2377 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2378 enum ieee80211_smps_mode smps_mode)
2380 struct sta_info *sta;
2381 enum ieee80211_smps_mode old_req;
2384 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2387 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2390 old_req = sdata->u.ap.req_smps;
2391 sdata->u.ap.req_smps = smps_mode;
2393 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2394 if (old_req == smps_mode ||
2395 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2398 /* If no associated stations, there's no need to do anything */
2399 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2400 sdata->smps_mode = smps_mode;
2401 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2406 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2407 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2409 mutex_lock(&sdata->local->sta_mtx);
2410 for (i = 0; i < STA_HASH_SIZE; i++) {
2411 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2412 lockdep_is_held(&sdata->local->sta_mtx));
2414 sta = rcu_dereference_protected(sta->hnext,
2415 lockdep_is_held(&sdata->local->sta_mtx))) {
2417 * Only stations associated to our AP and
2420 if (sta->sdata->bss != &sdata->u.ap)
2423 /* This station doesn't support MIMO - skip it */
2424 if (sta_info_tx_streams(sta) == 1)
2428 * Don't wake up a STA just to send the action frame
2429 * unless we are getting more restrictive.
2431 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2432 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2435 "Won't send SMPS to sleeping STA %pM\n",
2441 * If the STA is not authorized, wait until it gets
2442 * authorized and the action frame will be sent then.
2444 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2447 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2448 ieee80211_send_smps_action(sdata, smps_mode,
2450 sdata->vif.bss_conf.bssid);
2453 mutex_unlock(&sdata->local->sta_mtx);
2455 sdata->smps_mode = smps_mode;
2456 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2461 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2462 enum ieee80211_smps_mode smps_mode)
2465 enum ieee80211_smps_mode old_req;
2468 lockdep_assert_held(&sdata->wdev.mtx);
2470 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2473 old_req = sdata->u.mgd.req_smps;
2474 sdata->u.mgd.req_smps = smps_mode;
2476 if (old_req == smps_mode &&
2477 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2481 * If not associated, or current association is not an HT
2482 * association, there's no need to do anything, just store
2483 * the new value until we associate.
2485 if (!sdata->u.mgd.associated ||
2486 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2489 ap = sdata->u.mgd.associated->bssid;
2491 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2492 if (sdata->u.mgd.powersave)
2493 smps_mode = IEEE80211_SMPS_DYNAMIC;
2495 smps_mode = IEEE80211_SMPS_OFF;
2498 /* send SM PS frame to AP */
2499 err = ieee80211_send_smps_action(sdata, smps_mode,
2502 sdata->u.mgd.req_smps = old_req;
2507 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2508 bool enabled, int timeout)
2510 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2511 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2513 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2516 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2519 if (enabled == sdata->u.mgd.powersave &&
2520 timeout == local->dynamic_ps_forced_timeout)
2523 sdata->u.mgd.powersave = enabled;
2524 local->dynamic_ps_forced_timeout = timeout;
2526 /* no change, but if automatic follow powersave */
2528 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2529 sdata_unlock(sdata);
2531 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2532 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2534 ieee80211_recalc_ps(local, -1);
2535 ieee80211_recalc_ps_vif(sdata);
2540 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2541 struct net_device *dev,
2542 s32 rssi_thold, u32 rssi_hyst)
2544 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2545 struct ieee80211_vif *vif = &sdata->vif;
2546 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2548 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2549 rssi_hyst == bss_conf->cqm_rssi_hyst)
2552 bss_conf->cqm_rssi_thold = rssi_thold;
2553 bss_conf->cqm_rssi_hyst = rssi_hyst;
2555 /* tell the driver upon association, unless already associated */
2556 if (sdata->u.mgd.associated &&
2557 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2558 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2563 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2564 struct net_device *dev,
2566 const struct cfg80211_bitrate_mask *mask)
2568 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2569 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2572 if (!ieee80211_sdata_running(sdata))
2575 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2576 ret = drv_set_bitrate_mask(local, sdata, mask);
2581 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2582 struct ieee80211_supported_band *sband = wiphy->bands[i];
2585 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2586 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2587 sizeof(mask->control[i].ht_mcs));
2589 sdata->rc_has_mcs_mask[i] = false;
2593 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2594 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2595 sdata->rc_has_mcs_mask[i] = true;
2603 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2604 struct ieee80211_sub_if_data *sdata,
2605 struct ieee80211_channel *channel,
2606 unsigned int duration, u64 *cookie,
2607 struct sk_buff *txskb,
2608 enum ieee80211_roc_type type)
2610 struct ieee80211_roc_work *roc, *tmp;
2611 bool queued = false;
2614 lockdep_assert_held(&local->mtx);
2616 if (local->use_chanctx && !local->ops->remain_on_channel)
2619 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2623 roc->chan = channel;
2624 roc->duration = duration;
2625 roc->req_duration = duration;
2628 roc->mgmt_tx_cookie = (unsigned long)txskb;
2630 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2631 INIT_LIST_HEAD(&roc->dependents);
2633 /* if there's one pending or we're scanning, queue this one */
2634 if (!list_empty(&local->roc_list) ||
2635 local->scanning || local->radar_detect_enabled)
2636 goto out_check_combine;
2638 /* if not HW assist, just queue & schedule work */
2639 if (!local->ops->remain_on_channel) {
2640 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2644 /* otherwise actually kick it off here (for error handling) */
2647 * If the duration is zero, then the driver
2648 * wouldn't actually do anything. Set it to
2651 * TODO: cancel the off-channel operation
2652 * when we get the SKB's TX status and
2653 * the wait time was zero before.
2658 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2664 roc->started = true;
2668 list_for_each_entry(tmp, &local->roc_list, list) {
2669 if (tmp->chan != channel || tmp->sdata != sdata)
2673 * Extend this ROC if possible:
2675 * If it hasn't started yet, just increase the duration
2676 * and add the new one to the list of dependents.
2677 * If the type of the new ROC has higher priority, modify the
2678 * type of the previous one to match that of the new one.
2680 if (!tmp->started) {
2681 list_add_tail(&roc->list, &tmp->dependents);
2682 tmp->duration = max(tmp->duration, roc->duration);
2683 tmp->type = max(tmp->type, roc->type);
2688 /* If it has already started, it's more difficult ... */
2689 if (local->ops->remain_on_channel) {
2690 unsigned long j = jiffies;
2693 * In the offloaded ROC case, if it hasn't begun, add
2694 * this new one to the dependent list to be handled
2695 * when the master one begins. If it has begun,
2696 * check that there's still a minimum time left and
2697 * if so, start this one, transmitting the frame, but
2698 * add it to the list directly after this one with
2699 * a reduced time so we'll ask the driver to execute
2700 * it right after finishing the previous one, in the
2701 * hope that it'll also be executed right afterwards,
2702 * effectively extending the old one.
2703 * If there's no minimum time left, just add it to the
2705 * TODO: the ROC type is ignored here, assuming that it
2706 * is better to immediately use the current ROC.
2708 if (!tmp->hw_begun) {
2709 list_add_tail(&roc->list, &tmp->dependents);
2714 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2715 tmp->hw_start_time +
2716 msecs_to_jiffies(tmp->duration))) {
2719 ieee80211_handle_roc_started(roc);
2721 new_dur = roc->duration -
2722 jiffies_to_msecs(tmp->hw_start_time +
2728 /* add right after tmp */
2729 list_add(&roc->list, &tmp->list);
2731 list_add_tail(&roc->list,
2736 } else if (del_timer_sync(&tmp->work.timer)) {
2737 unsigned long new_end;
2740 * In the software ROC case, cancel the timer, if
2741 * that fails then the finish work is already
2742 * queued/pending and thus we queue the new ROC
2743 * normally, if that succeeds then we can extend
2744 * the timer duration and TX the frame (if any.)
2747 list_add_tail(&roc->list, &tmp->dependents);
2750 new_end = jiffies + msecs_to_jiffies(roc->duration);
2752 /* ok, it was started & we canceled timer */
2753 if (time_after(new_end, tmp->work.timer.expires))
2754 mod_timer(&tmp->work.timer, new_end);
2756 add_timer(&tmp->work.timer);
2758 ieee80211_handle_roc_started(roc);
2765 list_add_tail(&roc->list, &local->roc_list);
2768 * cookie is either the roc cookie (for normal roc)
2769 * or the SKB (for mgmt TX)
2772 /* local->mtx protects this */
2773 local->roc_cookie_counter++;
2774 roc->cookie = local->roc_cookie_counter;
2775 /* wow, you wrapped 64 bits ... more likely a bug */
2776 if (WARN_ON(roc->cookie == 0)) {
2778 local->roc_cookie_counter++;
2780 *cookie = roc->cookie;
2782 *cookie = (unsigned long)txskb;
2788 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2789 struct wireless_dev *wdev,
2790 struct ieee80211_channel *chan,
2791 unsigned int duration,
2794 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2795 struct ieee80211_local *local = sdata->local;
2798 mutex_lock(&local->mtx);
2799 ret = ieee80211_start_roc_work(local, sdata, chan,
2800 duration, cookie, NULL,
2801 IEEE80211_ROC_TYPE_NORMAL);
2802 mutex_unlock(&local->mtx);
2807 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2808 u64 cookie, bool mgmt_tx)
2810 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2813 mutex_lock(&local->mtx);
2814 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2815 struct ieee80211_roc_work *dep, *tmp2;
2817 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2818 if (!mgmt_tx && dep->cookie != cookie)
2820 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2822 /* found dependent item -- just remove it */
2823 list_del(&dep->list);
2824 mutex_unlock(&local->mtx);
2826 ieee80211_roc_notify_destroy(dep, true);
2830 if (!mgmt_tx && roc->cookie != cookie)
2832 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2840 mutex_unlock(&local->mtx);
2845 * We found the item to cancel, so do that. Note that it
2846 * may have dependents, which we also cancel (and send
2847 * the expired signal for.) Not doing so would be quite
2848 * tricky here, but we may need to fix it later.
2851 if (local->ops->remain_on_channel) {
2852 if (found->started) {
2853 ret = drv_cancel_remain_on_channel(local);
2854 if (WARN_ON_ONCE(ret)) {
2855 mutex_unlock(&local->mtx);
2860 list_del(&found->list);
2863 ieee80211_start_next_roc(local);
2864 mutex_unlock(&local->mtx);
2866 ieee80211_roc_notify_destroy(found, true);
2868 /* work may be pending so use it all the time */
2869 found->abort = true;
2870 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2872 mutex_unlock(&local->mtx);
2874 /* work will clean up etc */
2875 flush_delayed_work(&found->work);
2876 WARN_ON(!found->to_be_freed);
2883 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2884 struct wireless_dev *wdev,
2887 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2888 struct ieee80211_local *local = sdata->local;
2890 return ieee80211_cancel_roc(local, cookie, false);
2893 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2894 struct net_device *dev,
2895 struct cfg80211_chan_def *chandef)
2897 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2898 struct ieee80211_local *local = sdata->local;
2899 unsigned long timeout;
2902 if (!list_empty(&local->roc_list) || local->scanning)
2905 /* whatever, but channel contexts should not complain about that one */
2906 sdata->smps_mode = IEEE80211_SMPS_OFF;
2907 sdata->needed_rx_chains = local->rx_chains;
2908 sdata->radar_required = true;
2910 mutex_lock(&local->iflist_mtx);
2911 err = ieee80211_vif_use_channel(sdata, chandef,
2912 IEEE80211_CHANCTX_SHARED);
2913 mutex_unlock(&local->iflist_mtx);
2917 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2918 ieee80211_queue_delayed_work(&sdata->local->hw,
2919 &sdata->dfs_cac_timer_work, timeout);
2924 static struct cfg80211_beacon_data *
2925 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2927 struct cfg80211_beacon_data *new_beacon;
2931 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2932 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2933 beacon->probe_resp_len;
2935 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2939 pos = (u8 *)(new_beacon + 1);
2940 if (beacon->head_len) {
2941 new_beacon->head_len = beacon->head_len;
2942 new_beacon->head = pos;
2943 memcpy(pos, beacon->head, beacon->head_len);
2944 pos += beacon->head_len;
2946 if (beacon->tail_len) {
2947 new_beacon->tail_len = beacon->tail_len;
2948 new_beacon->tail = pos;
2949 memcpy(pos, beacon->tail, beacon->tail_len);
2950 pos += beacon->tail_len;
2952 if (beacon->beacon_ies_len) {
2953 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2954 new_beacon->beacon_ies = pos;
2955 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2956 pos += beacon->beacon_ies_len;
2958 if (beacon->proberesp_ies_len) {
2959 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2960 new_beacon->proberesp_ies = pos;
2961 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2962 pos += beacon->proberesp_ies_len;
2964 if (beacon->assocresp_ies_len) {
2965 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2966 new_beacon->assocresp_ies = pos;
2967 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2968 pos += beacon->assocresp_ies_len;
2970 if (beacon->probe_resp_len) {
2971 new_beacon->probe_resp_len = beacon->probe_resp_len;
2972 beacon->probe_resp = pos;
2973 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2974 pos += beacon->probe_resp_len;
2980 void ieee80211_csa_finalize_work(struct work_struct *work)
2982 struct ieee80211_sub_if_data *sdata =
2983 container_of(work, struct ieee80211_sub_if_data,
2985 struct ieee80211_local *local = sdata->local;
2986 int err, changed = 0;
2989 /* AP might have been stopped while waiting for the lock. */
2990 if (!sdata->vif.csa_active)
2993 if (!ieee80211_sdata_running(sdata))
2996 sdata->radar_required = sdata->csa_radar_required;
2997 err = ieee80211_vif_change_channel(sdata, &changed);
2998 if (WARN_ON(err < 0))
3001 if (!local->use_chanctx) {
3002 local->_oper_chandef = sdata->csa_chandef;
3003 ieee80211_hw_config(local, 0);
3006 ieee80211_bss_info_change_notify(sdata, changed);
3008 sdata->vif.csa_active = false;
3009 switch (sdata->vif.type) {
3010 case NL80211_IFTYPE_AP:
3011 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3016 kfree(sdata->u.ap.next_beacon);
3017 sdata->u.ap.next_beacon = NULL;
3019 ieee80211_bss_info_change_notify(sdata, err);
3021 case NL80211_IFTYPE_ADHOC:
3022 ieee80211_ibss_finish_csa(sdata);
3024 #ifdef CONFIG_MAC80211_MESH
3025 case NL80211_IFTYPE_MESH_POINT:
3026 err = ieee80211_mesh_finish_csa(sdata);
3036 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3037 IEEE80211_MAX_QUEUE_MAP,
3038 IEEE80211_QUEUE_STOP_REASON_CSA);
3040 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3043 sdata_unlock(sdata);
3046 static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3047 struct cfg80211_csa_settings *params)
3049 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3050 struct ieee80211_local *local = sdata->local;
3051 struct ieee80211_chanctx_conf *chanctx_conf;
3052 struct ieee80211_chanctx *chanctx;
3053 struct ieee80211_if_mesh __maybe_unused *ifmsh;
3054 int err, num_chanctx;
3056 lockdep_assert_held(&sdata->wdev.mtx);
3058 if (!list_empty(&local->roc_list) || local->scanning)
3061 if (sdata->wdev.cac_started)
3064 if (cfg80211_chandef_identical(¶ms->chandef,
3065 &sdata->vif.bss_conf.chandef))
3069 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3070 if (!chanctx_conf) {
3075 /* don't handle for multi-VIF cases */
3076 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
3077 if (chanctx->refcount > 1) {
3082 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3086 if (num_chanctx > 1)
3089 /* don't allow another channel switch if one is already active. */
3090 if (sdata->vif.csa_active)
3093 switch (sdata->vif.type) {
3094 case NL80211_IFTYPE_AP:
3095 sdata->csa_counter_offset_beacon =
3096 params->counter_offset_beacon;
3097 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3098 sdata->u.ap.next_beacon =
3099 cfg80211_beacon_dup(¶ms->beacon_after);
3100 if (!sdata->u.ap.next_beacon)
3103 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa);
3105 kfree(sdata->u.ap.next_beacon);
3109 case NL80211_IFTYPE_ADHOC:
3110 if (!sdata->vif.bss_conf.ibss_joined)
3113 if (params->chandef.width != sdata->u.ibss.chandef.width)
3116 switch (params->chandef.width) {
3117 case NL80211_CHAN_WIDTH_40:
3118 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3119 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3121 case NL80211_CHAN_WIDTH_5:
3122 case NL80211_CHAN_WIDTH_10:
3123 case NL80211_CHAN_WIDTH_20_NOHT:
3124 case NL80211_CHAN_WIDTH_20:
3130 /* changes into another band are not supported */
3131 if (sdata->u.ibss.chandef.chan->band !=
3132 params->chandef.chan->band)
3135 err = ieee80211_ibss_csa_beacon(sdata, params);
3139 #ifdef CONFIG_MAC80211_MESH
3140 case NL80211_IFTYPE_MESH_POINT:
3141 ifmsh = &sdata->u.mesh;
3143 if (!ifmsh->mesh_id)
3146 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3149 /* changes into another band are not supported */
3150 if (sdata->vif.bss_conf.chandef.chan->band !=
3151 params->chandef.chan->band)
3154 ifmsh->chsw_init = true;
3155 if (!ifmsh->pre_value)
3156 ifmsh->pre_value = 1;
3160 err = ieee80211_mesh_csa_beacon(sdata, params, true);
3162 ifmsh->chsw_init = false;
3171 sdata->csa_radar_required = params->radar_required;
3173 if (params->block_tx)
3174 ieee80211_stop_queues_by_reason(&local->hw,
3175 IEEE80211_MAX_QUEUE_MAP,
3176 IEEE80211_QUEUE_STOP_REASON_CSA);
3178 sdata->csa_chandef = params->chandef;
3179 sdata->vif.csa_active = true;
3181 ieee80211_bss_info_change_notify(sdata, err);
3182 drv_channel_switch_beacon(sdata, ¶ms->chandef);
3187 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3188 struct cfg80211_mgmt_tx_params *params,
3191 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3192 struct ieee80211_local *local = sdata->local;
3193 struct sk_buff *skb;
3194 struct sta_info *sta;
3195 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3196 bool need_offchan = false;
3200 if (params->dont_wait_for_ack)
3201 flags = IEEE80211_TX_CTL_NO_ACK;
3203 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3204 IEEE80211_TX_CTL_REQ_TX_STATUS;
3207 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3209 switch (sdata->vif.type) {
3210 case NL80211_IFTYPE_ADHOC:
3211 if (!sdata->vif.bss_conf.ibss_joined)
3212 need_offchan = true;
3214 #ifdef CONFIG_MAC80211_MESH
3215 case NL80211_IFTYPE_MESH_POINT:
3216 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3217 !sdata->u.mesh.mesh_id_len)
3218 need_offchan = true;
3221 case NL80211_IFTYPE_AP:
3222 case NL80211_IFTYPE_AP_VLAN:
3223 case NL80211_IFTYPE_P2P_GO:
3224 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3225 !ieee80211_vif_is_mesh(&sdata->vif) &&
3226 !rcu_access_pointer(sdata->bss->beacon))
3227 need_offchan = true;
3228 if (!ieee80211_is_action(mgmt->frame_control) ||
3229 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3230 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3231 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3234 sta = sta_info_get(sdata, mgmt->da);
3239 case NL80211_IFTYPE_STATION:
3240 case NL80211_IFTYPE_P2P_CLIENT:
3241 if (!sdata->u.mgd.associated)
3242 need_offchan = true;
3244 case NL80211_IFTYPE_P2P_DEVICE:
3245 need_offchan = true;
3251 /* configurations requiring offchan cannot work if no channel has been
3254 if (need_offchan && !params->chan)
3257 mutex_lock(&local->mtx);
3259 /* Check if the operating channel is the requested channel */
3260 if (!need_offchan) {
3261 struct ieee80211_chanctx_conf *chanctx_conf;
3264 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3267 need_offchan = params->chan &&
3269 chanctx_conf->def.chan);
3270 } else if (!params->chan) {
3275 need_offchan = true;
3280 if (need_offchan && !params->offchan) {
3285 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3290 skb_reserve(skb, local->hw.extra_tx_headroom);
3292 memcpy(skb_put(skb, params->len), params->buf, params->len);
3294 IEEE80211_SKB_CB(skb)->flags = flags;
3296 skb->dev = sdata->dev;
3298 if (!need_offchan) {
3299 *cookie = (unsigned long) skb;
3300 ieee80211_tx_skb(sdata, skb);
3305 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3306 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3307 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3308 IEEE80211_SKB_CB(skb)->hw_queue =
3309 local->hw.offchannel_tx_hw_queue;
3311 /* This will handle all kinds of coalescing and immediate TX */
3312 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3313 params->wait, cookie, skb,
3314 IEEE80211_ROC_TYPE_MGMT_TX);
3318 mutex_unlock(&local->mtx);
3322 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3323 struct wireless_dev *wdev,
3326 struct ieee80211_local *local = wiphy_priv(wiphy);
3328 return ieee80211_cancel_roc(local, cookie, true);
3331 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3332 struct wireless_dev *wdev,
3333 u16 frame_type, bool reg)
3335 struct ieee80211_local *local = wiphy_priv(wiphy);
3337 switch (frame_type) {
3338 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3340 local->probe_req_reg++;
3342 local->probe_req_reg--;
3344 if (!local->open_count)
3347 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3354 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3356 struct ieee80211_local *local = wiphy_priv(wiphy);
3361 return drv_set_antenna(local, tx_ant, rx_ant);
3364 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3366 struct ieee80211_local *local = wiphy_priv(wiphy);
3368 return drv_get_antenna(local, tx_ant, rx_ant);
3371 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3373 struct ieee80211_local *local = wiphy_priv(wiphy);
3375 return drv_set_ringparam(local, tx, rx);
3378 static void ieee80211_get_ringparam(struct wiphy *wiphy,
3379 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3381 struct ieee80211_local *local = wiphy_priv(wiphy);
3383 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3386 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3387 struct net_device *dev,
3388 struct cfg80211_gtk_rekey_data *data)
3390 struct ieee80211_local *local = wiphy_priv(wiphy);
3391 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3393 if (!local->ops->set_rekey_data)
3396 drv_set_rekey_data(local, sdata, data);
3401 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3403 u8 *pos = (void *)skb_put(skb, 7);
3405 *pos++ = WLAN_EID_EXT_CAPABILITY;
3406 *pos++ = 5; /* len */
3411 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3414 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3416 struct ieee80211_local *local = sdata->local;
3420 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
3423 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3424 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3425 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3426 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3431 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3432 u8 *peer, u8 *bssid)
3434 struct ieee80211_tdls_lnkie *lnkid;
3436 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3438 lnkid->ie_type = WLAN_EID_LINK_ID;
3439 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3441 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3442 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3443 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3447 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3448 u8 *peer, u8 action_code, u8 dialog_token,
3449 u16 status_code, struct sk_buff *skb)
3451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3452 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3453 struct ieee80211_tdls_data *tf;
3455 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3457 memcpy(tf->da, peer, ETH_ALEN);
3458 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3459 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3460 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3462 switch (action_code) {
3463 case WLAN_TDLS_SETUP_REQUEST:
3464 tf->category = WLAN_CATEGORY_TDLS;
3465 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3467 skb_put(skb, sizeof(tf->u.setup_req));
3468 tf->u.setup_req.dialog_token = dialog_token;
3469 tf->u.setup_req.capability =
3470 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3472 ieee80211_add_srates_ie(sdata, skb, false, band);
3473 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3474 ieee80211_tdls_add_ext_capab(skb);
3476 case WLAN_TDLS_SETUP_RESPONSE:
3477 tf->category = WLAN_CATEGORY_TDLS;
3478 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3480 skb_put(skb, sizeof(tf->u.setup_resp));
3481 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3482 tf->u.setup_resp.dialog_token = dialog_token;
3483 tf->u.setup_resp.capability =
3484 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3486 ieee80211_add_srates_ie(sdata, skb, false, band);
3487 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3488 ieee80211_tdls_add_ext_capab(skb);
3490 case WLAN_TDLS_SETUP_CONFIRM:
3491 tf->category = WLAN_CATEGORY_TDLS;
3492 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3494 skb_put(skb, sizeof(tf->u.setup_cfm));
3495 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3496 tf->u.setup_cfm.dialog_token = dialog_token;
3498 case WLAN_TDLS_TEARDOWN:
3499 tf->category = WLAN_CATEGORY_TDLS;
3500 tf->action_code = WLAN_TDLS_TEARDOWN;
3502 skb_put(skb, sizeof(tf->u.teardown));
3503 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3505 case WLAN_TDLS_DISCOVERY_REQUEST:
3506 tf->category = WLAN_CATEGORY_TDLS;
3507 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3509 skb_put(skb, sizeof(tf->u.discover_req));
3510 tf->u.discover_req.dialog_token = dialog_token;
3520 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3521 u8 *peer, u8 action_code, u8 dialog_token,
3522 u16 status_code, struct sk_buff *skb)
3524 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3525 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3526 struct ieee80211_mgmt *mgmt;
3528 mgmt = (void *)skb_put(skb, 24);
3529 memset(mgmt, 0, 24);
3530 memcpy(mgmt->da, peer, ETH_ALEN);
3531 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3532 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3534 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3535 IEEE80211_STYPE_ACTION);
3537 switch (action_code) {
3538 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3539 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3540 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3541 mgmt->u.action.u.tdls_discover_resp.action_code =
3542 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3543 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3545 mgmt->u.action.u.tdls_discover_resp.capability =
3546 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3548 ieee80211_add_srates_ie(sdata, skb, false, band);
3549 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3550 ieee80211_tdls_add_ext_capab(skb);
3559 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3560 u8 *peer, u8 action_code, u8 dialog_token,
3561 u16 status_code, const u8 *extra_ies,
3562 size_t extra_ies_len)
3564 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3565 struct ieee80211_local *local = sdata->local;
3566 struct sk_buff *skb = NULL;
3570 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3573 /* make sure we are in managed mode, and associated */
3574 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3575 !sdata->u.mgd.associated)
3578 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3581 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3582 max(sizeof(struct ieee80211_mgmt),
3583 sizeof(struct ieee80211_tdls_data)) +
3584 50 + /* supported rates */
3587 sizeof(struct ieee80211_tdls_lnkie));
3591 skb_reserve(skb, local->hw.extra_tx_headroom);
3593 switch (action_code) {
3594 case WLAN_TDLS_SETUP_REQUEST:
3595 case WLAN_TDLS_SETUP_RESPONSE:
3596 case WLAN_TDLS_SETUP_CONFIRM:
3597 case WLAN_TDLS_TEARDOWN:
3598 case WLAN_TDLS_DISCOVERY_REQUEST:
3599 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3600 action_code, dialog_token,
3602 send_direct = false;
3604 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3605 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3606 dialog_token, status_code,
3619 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3621 /* the TDLS link IE is always added last */
3622 switch (action_code) {
3623 case WLAN_TDLS_SETUP_REQUEST:
3624 case WLAN_TDLS_SETUP_CONFIRM:
3625 case WLAN_TDLS_TEARDOWN:
3626 case WLAN_TDLS_DISCOVERY_REQUEST:
3627 /* we are the initiator */
3628 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3629 sdata->u.mgd.bssid);
3631 case WLAN_TDLS_SETUP_RESPONSE:
3632 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3633 /* we are the responder */
3634 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3635 sdata->u.mgd.bssid);
3643 ieee80211_tx_skb(sdata, skb);
3648 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3649 * we should default to AC_VI.
3651 switch (action_code) {
3652 case WLAN_TDLS_SETUP_REQUEST:
3653 case WLAN_TDLS_SETUP_RESPONSE:
3654 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3658 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3663 /* disable bottom halves when entering the Tx path */
3665 ret = ieee80211_subif_start_xmit(skb, dev);
3675 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3676 u8 *peer, enum nl80211_tdls_operation oper)
3678 struct sta_info *sta;
3679 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3681 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3684 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3687 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3690 case NL80211_TDLS_ENABLE_LINK:
3692 sta = sta_info_get(sdata, peer);
3698 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3701 case NL80211_TDLS_DISABLE_LINK:
3702 return sta_info_destroy_addr(sdata, peer);
3703 case NL80211_TDLS_TEARDOWN:
3704 case NL80211_TDLS_SETUP:
3705 case NL80211_TDLS_DISCOVERY_REQ:
3706 /* We don't support in-driver setup/teardown/discovery */
3715 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3716 const u8 *peer, u64 *cookie)
3718 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3719 struct ieee80211_local *local = sdata->local;
3720 struct ieee80211_qos_hdr *nullfunc;
3721 struct sk_buff *skb;
3722 int size = sizeof(*nullfunc);
3725 struct ieee80211_tx_info *info;
3726 struct sta_info *sta;
3727 struct ieee80211_chanctx_conf *chanctx_conf;
3728 enum ieee80211_band band;
3731 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3732 if (WARN_ON(!chanctx_conf)) {
3736 band = chanctx_conf->def.chan->band;
3737 sta = sta_info_get_bss(sdata, peer);
3739 qos = test_sta_flag(sta, WLAN_STA_WME);
3746 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3747 IEEE80211_STYPE_QOS_NULLFUNC |
3748 IEEE80211_FCTL_FROMDS);
3751 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3752 IEEE80211_STYPE_NULLFUNC |
3753 IEEE80211_FCTL_FROMDS);
3756 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3764 skb_reserve(skb, local->hw.extra_tx_headroom);
3766 nullfunc = (void *) skb_put(skb, size);
3767 nullfunc->frame_control = fc;
3768 nullfunc->duration_id = 0;
3769 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3770 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3771 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3772 nullfunc->seq_ctrl = 0;
3774 info = IEEE80211_SKB_CB(skb);
3776 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3777 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3779 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3782 nullfunc->qos_ctrl = cpu_to_le16(7);
3785 ieee80211_xmit(sdata, skb, band);
3789 *cookie = (unsigned long) skb;
3793 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3794 struct wireless_dev *wdev,
3795 struct cfg80211_chan_def *chandef)
3797 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3798 struct ieee80211_local *local = wiphy_priv(wiphy);
3799 struct ieee80211_chanctx_conf *chanctx_conf;
3803 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3805 *chandef = chanctx_conf->def;
3807 } else if (local->open_count > 0 &&
3808 local->open_count == local->monitors &&
3809 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3810 if (local->use_chanctx)
3811 *chandef = local->monitor_chandef;
3813 *chandef = local->_oper_chandef;
3822 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3824 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3828 struct cfg80211_ops mac80211_config_ops = {
3829 .add_virtual_intf = ieee80211_add_iface,
3830 .del_virtual_intf = ieee80211_del_iface,
3831 .change_virtual_intf = ieee80211_change_iface,
3832 .start_p2p_device = ieee80211_start_p2p_device,
3833 .stop_p2p_device = ieee80211_stop_p2p_device,
3834 .add_key = ieee80211_add_key,
3835 .del_key = ieee80211_del_key,
3836 .get_key = ieee80211_get_key,
3837 .set_default_key = ieee80211_config_default_key,
3838 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3839 .start_ap = ieee80211_start_ap,
3840 .change_beacon = ieee80211_change_beacon,
3841 .stop_ap = ieee80211_stop_ap,
3842 .add_station = ieee80211_add_station,
3843 .del_station = ieee80211_del_station,
3844 .change_station = ieee80211_change_station,
3845 .get_station = ieee80211_get_station,
3846 .dump_station = ieee80211_dump_station,
3847 .dump_survey = ieee80211_dump_survey,
3848 #ifdef CONFIG_MAC80211_MESH
3849 .add_mpath = ieee80211_add_mpath,
3850 .del_mpath = ieee80211_del_mpath,
3851 .change_mpath = ieee80211_change_mpath,
3852 .get_mpath = ieee80211_get_mpath,
3853 .dump_mpath = ieee80211_dump_mpath,
3854 .update_mesh_config = ieee80211_update_mesh_config,
3855 .get_mesh_config = ieee80211_get_mesh_config,
3856 .join_mesh = ieee80211_join_mesh,
3857 .leave_mesh = ieee80211_leave_mesh,
3859 .change_bss = ieee80211_change_bss,
3860 .set_txq_params = ieee80211_set_txq_params,
3861 .set_monitor_channel = ieee80211_set_monitor_channel,
3862 .suspend = ieee80211_suspend,
3863 .resume = ieee80211_resume,
3864 .scan = ieee80211_scan,
3865 .sched_scan_start = ieee80211_sched_scan_start,
3866 .sched_scan_stop = ieee80211_sched_scan_stop,
3867 .auth = ieee80211_auth,
3868 .assoc = ieee80211_assoc,
3869 .deauth = ieee80211_deauth,
3870 .disassoc = ieee80211_disassoc,
3871 .join_ibss = ieee80211_join_ibss,
3872 .leave_ibss = ieee80211_leave_ibss,
3873 .set_mcast_rate = ieee80211_set_mcast_rate,
3874 .set_wiphy_params = ieee80211_set_wiphy_params,
3875 .set_tx_power = ieee80211_set_tx_power,
3876 .get_tx_power = ieee80211_get_tx_power,
3877 .set_wds_peer = ieee80211_set_wds_peer,
3878 .rfkill_poll = ieee80211_rfkill_poll,
3879 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3880 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3881 .set_power_mgmt = ieee80211_set_power_mgmt,
3882 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3883 .remain_on_channel = ieee80211_remain_on_channel,
3884 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3885 .mgmt_tx = ieee80211_mgmt_tx,
3886 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3887 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3888 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3889 .set_antenna = ieee80211_set_antenna,
3890 .get_antenna = ieee80211_get_antenna,
3891 .set_ringparam = ieee80211_set_ringparam,
3892 .get_ringparam = ieee80211_get_ringparam,
3893 .set_rekey_data = ieee80211_set_rekey_data,
3894 .tdls_oper = ieee80211_tdls_oper,
3895 .tdls_mgmt = ieee80211_tdls_mgmt,
3896 .probe_client = ieee80211_probe_client,
3897 .set_noack_map = ieee80211_set_noack_map,
3899 .set_wakeup = ieee80211_set_wakeup,
3901 .get_et_sset_count = ieee80211_get_et_sset_count,
3902 .get_et_stats = ieee80211_get_et_stats,
3903 .get_et_strings = ieee80211_get_et_strings,
3904 .get_channel = ieee80211_cfg_get_channel,
3905 .start_radar_detection = ieee80211_start_radar_detection,
3906 .channel_switch = ieee80211_channel_switch,