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)) {
77 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
78 * changed while the interface is up.
79 * Else we would need to add a lot of cruft
80 * to update everything:
81 * cooked_mntrs, monitor and all fif_* counters
82 * reconfigure hardware
84 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
85 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
88 ieee80211_adjust_monitor_flags(sdata, -1);
89 sdata->u.mntr_flags = *flags;
90 ieee80211_adjust_monitor_flags(sdata, 1);
92 ieee80211_configure_filter(local);
95 * Because the interface is down, ieee80211_do_stop
96 * and ieee80211_do_open take care of "everything"
97 * mentioned in the comment above.
99 sdata->u.mntr_flags = *flags;
106 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
107 struct wireless_dev *wdev)
109 return ieee80211_do_open(wdev, true);
112 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
113 struct wireless_dev *wdev)
115 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
118 static int ieee80211_set_noack_map(struct wiphy *wiphy,
119 struct net_device *dev,
122 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
124 sdata->noack_map = noack_map;
128 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
129 u8 key_idx, bool pairwise, const u8 *mac_addr,
130 struct key_params *params)
132 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
133 struct sta_info *sta = NULL;
134 struct ieee80211_key *key;
137 if (!ieee80211_sdata_running(sdata))
140 /* reject WEP and TKIP keys if WEP failed to initialize */
141 switch (params->cipher) {
142 case WLAN_CIPHER_SUITE_WEP40:
143 case WLAN_CIPHER_SUITE_TKIP:
144 case WLAN_CIPHER_SUITE_WEP104:
145 if (IS_ERR(sdata->local->wep_tx_tfm))
152 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
153 params->key, params->seq_len, params->seq);
158 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
160 mutex_lock(&sdata->local->sta_mtx);
163 if (ieee80211_vif_is_mesh(&sdata->vif))
164 sta = sta_info_get(sdata, mac_addr);
166 sta = sta_info_get_bss(sdata, mac_addr);
168 * The ASSOC test makes sure the driver is ready to
169 * receive the key. When wpa_supplicant has roamed
170 * using FT, it attempts to set the key before
171 * association has completed, this rejects that attempt
172 * so it will set the key again after assocation.
174 * TODO: accept the key if we have a station entry and
175 * add it to the device after the station.
177 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
178 ieee80211_key_free(sdata->local, key);
184 switch (sdata->vif.type) {
185 case NL80211_IFTYPE_STATION:
186 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
187 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
189 case NL80211_IFTYPE_AP:
190 case NL80211_IFTYPE_AP_VLAN:
191 /* Keys without a station are used for TX only */
192 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
193 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
195 case NL80211_IFTYPE_ADHOC:
198 case NL80211_IFTYPE_MESH_POINT:
199 #ifdef CONFIG_MAC80211_MESH
200 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
201 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
204 case NL80211_IFTYPE_WDS:
205 case NL80211_IFTYPE_MONITOR:
206 case NL80211_IFTYPE_P2P_DEVICE:
207 case NL80211_IFTYPE_UNSPECIFIED:
208 case NUM_NL80211_IFTYPES:
209 case NL80211_IFTYPE_P2P_CLIENT:
210 case NL80211_IFTYPE_P2P_GO:
211 /* shouldn't happen */
216 err = ieee80211_key_link(key, sdata, sta);
218 ieee80211_key_free(sdata->local, key);
221 mutex_unlock(&sdata->local->sta_mtx);
226 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
227 u8 key_idx, bool pairwise, const u8 *mac_addr)
229 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
230 struct ieee80211_local *local = sdata->local;
231 struct sta_info *sta;
232 struct ieee80211_key *key = NULL;
235 mutex_lock(&local->sta_mtx);
236 mutex_lock(&local->key_mtx);
241 sta = sta_info_get_bss(sdata, mac_addr);
246 key = key_mtx_dereference(local, sta->ptk);
248 key = key_mtx_dereference(local, sta->gtk[key_idx]);
250 key = key_mtx_dereference(local, sdata->keys[key_idx]);
257 __ieee80211_key_free(key, true);
261 mutex_unlock(&local->key_mtx);
262 mutex_unlock(&local->sta_mtx);
267 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
268 u8 key_idx, bool pairwise, const u8 *mac_addr,
270 void (*callback)(void *cookie,
271 struct key_params *params))
273 struct ieee80211_sub_if_data *sdata;
274 struct sta_info *sta = NULL;
276 struct key_params params;
277 struct ieee80211_key *key = NULL;
283 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
288 sta = sta_info_get_bss(sdata, mac_addr);
293 key = rcu_dereference(sta->ptk);
294 else if (key_idx < NUM_DEFAULT_KEYS)
295 key = rcu_dereference(sta->gtk[key_idx]);
297 key = rcu_dereference(sdata->keys[key_idx]);
302 memset(¶ms, 0, sizeof(params));
304 params.cipher = key->conf.cipher;
306 switch (key->conf.cipher) {
307 case WLAN_CIPHER_SUITE_TKIP:
308 iv32 = key->u.tkip.tx.iv32;
309 iv16 = key->u.tkip.tx.iv16;
311 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
312 drv_get_tkip_seq(sdata->local,
313 key->conf.hw_key_idx,
316 seq[0] = iv16 & 0xff;
317 seq[1] = (iv16 >> 8) & 0xff;
318 seq[2] = iv32 & 0xff;
319 seq[3] = (iv32 >> 8) & 0xff;
320 seq[4] = (iv32 >> 16) & 0xff;
321 seq[5] = (iv32 >> 24) & 0xff;
325 case WLAN_CIPHER_SUITE_CCMP:
326 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
336 case WLAN_CIPHER_SUITE_AES_CMAC:
337 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
349 params.key = key->conf.key;
350 params.key_len = key->conf.keylen;
352 callback(cookie, ¶ms);
360 static int ieee80211_config_default_key(struct wiphy *wiphy,
361 struct net_device *dev,
362 u8 key_idx, bool uni,
365 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
367 ieee80211_set_default_key(sdata, key_idx, uni, multi);
372 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
373 struct net_device *dev,
376 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
378 ieee80211_set_default_mgmt_key(sdata, key_idx);
383 void sta_set_rate_info_tx(struct sta_info *sta,
384 const struct ieee80211_tx_rate *rate,
385 struct rate_info *rinfo)
388 if (rate->flags & IEEE80211_TX_RC_MCS) {
389 rinfo->flags |= RATE_INFO_FLAGS_MCS;
390 rinfo->mcs = rate->idx;
391 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
392 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
393 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
394 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
396 struct ieee80211_supported_band *sband;
397 sband = sta->local->hw.wiphy->bands[
398 ieee80211_get_sdata_band(sta->sdata)];
399 rinfo->legacy = sband->bitrates[rate->idx].bitrate;
401 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
402 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
403 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
404 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
405 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
406 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
407 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
408 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
411 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
415 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
416 rinfo->flags |= RATE_INFO_FLAGS_MCS;
417 rinfo->mcs = sta->last_rx_rate_idx;
418 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
419 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
420 rinfo->nss = sta->last_rx_rate_vht_nss;
421 rinfo->mcs = sta->last_rx_rate_idx;
423 struct ieee80211_supported_band *sband;
425 sband = sta->local->hw.wiphy->bands[
426 ieee80211_get_sdata_band(sta->sdata)];
428 sband->bitrates[sta->last_rx_rate_idx].bitrate;
431 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
432 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
433 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
434 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
435 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
436 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
437 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
438 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
439 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
440 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
443 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
445 struct ieee80211_sub_if_data *sdata = sta->sdata;
446 struct ieee80211_local *local = sdata->local;
447 struct timespec uptime;
449 sinfo->generation = sdata->local->sta_generation;
451 sinfo->filled = STATION_INFO_INACTIVE_TIME |
452 STATION_INFO_RX_BYTES |
453 STATION_INFO_TX_BYTES |
454 STATION_INFO_RX_PACKETS |
455 STATION_INFO_TX_PACKETS |
456 STATION_INFO_TX_RETRIES |
457 STATION_INFO_TX_FAILED |
458 STATION_INFO_TX_BITRATE |
459 STATION_INFO_RX_BITRATE |
460 STATION_INFO_RX_DROP_MISC |
461 STATION_INFO_BSS_PARAM |
462 STATION_INFO_CONNECTED_TIME |
463 STATION_INFO_STA_FLAGS |
464 STATION_INFO_BEACON_LOSS_COUNT;
466 do_posix_clock_monotonic_gettime(&uptime);
467 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
469 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
470 sinfo->rx_bytes = sta->rx_bytes;
471 sinfo->tx_bytes = sta->tx_bytes;
472 sinfo->rx_packets = sta->rx_packets;
473 sinfo->tx_packets = sta->tx_packets;
474 sinfo->tx_retries = sta->tx_retry_count;
475 sinfo->tx_failed = sta->tx_retry_failed;
476 sinfo->rx_dropped_misc = sta->rx_dropped;
477 sinfo->beacon_loss_count = sta->beacon_loss_count;
479 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
480 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
481 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
482 if (!local->ops->get_rssi ||
483 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
484 sinfo->signal = (s8)sta->last_signal;
485 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
488 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
489 sta_set_rate_info_rx(sta, &sinfo->rxrate);
491 if (ieee80211_vif_is_mesh(&sdata->vif)) {
492 #ifdef CONFIG_MAC80211_MESH
493 sinfo->filled |= STATION_INFO_LLID |
495 STATION_INFO_PLINK_STATE |
496 STATION_INFO_LOCAL_PM |
497 STATION_INFO_PEER_PM |
498 STATION_INFO_NONPEER_PM;
500 sinfo->llid = le16_to_cpu(sta->llid);
501 sinfo->plid = le16_to_cpu(sta->plid);
502 sinfo->plink_state = sta->plink_state;
503 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
504 sinfo->filled |= STATION_INFO_T_OFFSET;
505 sinfo->t_offset = sta->t_offset;
507 sinfo->local_pm = sta->local_pm;
508 sinfo->peer_pm = sta->peer_pm;
509 sinfo->nonpeer_pm = sta->nonpeer_pm;
513 sinfo->bss_param.flags = 0;
514 if (sdata->vif.bss_conf.use_cts_prot)
515 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
516 if (sdata->vif.bss_conf.use_short_preamble)
517 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
518 if (sdata->vif.bss_conf.use_short_slot)
519 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
520 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
521 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
523 sinfo->sta_flags.set = 0;
524 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
525 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
526 BIT(NL80211_STA_FLAG_WME) |
527 BIT(NL80211_STA_FLAG_MFP) |
528 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
529 BIT(NL80211_STA_FLAG_ASSOCIATED) |
530 BIT(NL80211_STA_FLAG_TDLS_PEER);
531 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
532 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
533 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
534 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
535 if (test_sta_flag(sta, WLAN_STA_WME))
536 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
537 if (test_sta_flag(sta, WLAN_STA_MFP))
538 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
539 if (test_sta_flag(sta, WLAN_STA_AUTH))
540 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
541 if (test_sta_flag(sta, WLAN_STA_ASSOC))
542 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
543 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
544 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
547 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
548 "rx_packets", "rx_bytes", "wep_weak_iv_count",
549 "rx_duplicates", "rx_fragments", "rx_dropped",
550 "tx_packets", "tx_bytes", "tx_fragments",
551 "tx_filtered", "tx_retry_failed", "tx_retries",
552 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
553 "channel", "noise", "ch_time", "ch_time_busy",
554 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
556 #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
558 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
559 struct net_device *dev,
562 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
565 if (sset == ETH_SS_STATS)
568 rv += drv_get_et_sset_count(sdata, sset);
575 static void ieee80211_get_et_stats(struct wiphy *wiphy,
576 struct net_device *dev,
577 struct ethtool_stats *stats,
580 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
581 struct ieee80211_chanctx_conf *chanctx_conf;
582 struct ieee80211_channel *channel;
583 struct sta_info *sta;
584 struct ieee80211_local *local = sdata->local;
585 struct station_info sinfo;
586 struct survey_info survey;
588 #define STA_STATS_SURVEY_LEN 7
590 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
592 #define ADD_STA_STATS(sta) \
594 data[i++] += sta->rx_packets; \
595 data[i++] += sta->rx_bytes; \
596 data[i++] += sta->wep_weak_iv_count; \
597 data[i++] += sta->num_duplicates; \
598 data[i++] += sta->rx_fragments; \
599 data[i++] += sta->rx_dropped; \
601 data[i++] += sta->tx_packets; \
602 data[i++] += sta->tx_bytes; \
603 data[i++] += sta->tx_fragments; \
604 data[i++] += sta->tx_filtered_count; \
605 data[i++] += sta->tx_retry_failed; \
606 data[i++] += sta->tx_retry_count; \
607 data[i++] += sta->beacon_loss_count; \
610 /* For Managed stations, find the single station based on BSSID
611 * and use that. For interface types, iterate through all available
612 * stations and add stats for any station that is assigned to this
616 mutex_lock(&local->sta_mtx);
618 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
619 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
621 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
627 data[i++] = sta->sta_state;
630 sta_set_sinfo(sta, &sinfo);
632 if (sinfo.filled & STATION_INFO_TX_BITRATE)
634 cfg80211_calculate_bitrate(&sinfo.txrate);
636 if (sinfo.filled & STATION_INFO_RX_BITRATE)
638 cfg80211_calculate_bitrate(&sinfo.rxrate);
641 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
642 data[i] = (u8)sinfo.signal_avg;
645 list_for_each_entry(sta, &local->sta_list, list) {
646 /* Make sure this station belongs to the proper dev */
647 if (sta->sdata->dev != dev)
656 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
657 /* Get survey stats for current channel */
661 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
663 channel = chanctx_conf->def.chan;
672 if (drv_get_survey(local, q, &survey) != 0) {
677 } while (channel != survey.channel);
681 data[i++] = survey.channel->center_freq;
684 if (survey.filled & SURVEY_INFO_NOISE_DBM)
685 data[i++] = (u8)survey.noise;
688 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
689 data[i++] = survey.channel_time;
692 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
693 data[i++] = survey.channel_time_busy;
696 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
697 data[i++] = survey.channel_time_ext_busy;
700 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
701 data[i++] = survey.channel_time_rx;
704 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
705 data[i++] = survey.channel_time_tx;
709 mutex_unlock(&local->sta_mtx);
711 if (WARN_ON(i != STA_STATS_LEN))
714 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
717 static void ieee80211_get_et_strings(struct wiphy *wiphy,
718 struct net_device *dev,
721 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
722 int sz_sta_stats = 0;
724 if (sset == ETH_SS_STATS) {
725 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
726 memcpy(data, *ieee80211_gstrings_sta_stats, sz_sta_stats);
728 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
731 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
732 int idx, u8 *mac, struct station_info *sinfo)
734 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
735 struct ieee80211_local *local = sdata->local;
736 struct sta_info *sta;
739 mutex_lock(&local->sta_mtx);
741 sta = sta_info_get_by_idx(sdata, idx);
744 memcpy(mac, sta->sta.addr, ETH_ALEN);
745 sta_set_sinfo(sta, sinfo);
748 mutex_unlock(&local->sta_mtx);
753 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
754 int idx, struct survey_info *survey)
756 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
758 return drv_get_survey(local, idx, survey);
761 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
762 u8 *mac, struct station_info *sinfo)
764 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
765 struct ieee80211_local *local = sdata->local;
766 struct sta_info *sta;
769 mutex_lock(&local->sta_mtx);
771 sta = sta_info_get_bss(sdata, mac);
774 sta_set_sinfo(sta, sinfo);
777 mutex_unlock(&local->sta_mtx);
782 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
783 struct cfg80211_chan_def *chandef)
785 struct ieee80211_local *local = wiphy_priv(wiphy);
786 struct ieee80211_sub_if_data *sdata;
789 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
792 mutex_lock(&local->iflist_mtx);
793 if (local->use_chanctx) {
794 sdata = rcu_dereference_protected(
795 local->monitor_sdata,
796 lockdep_is_held(&local->iflist_mtx));
798 ieee80211_vif_release_channel(sdata);
799 ret = ieee80211_vif_use_channel(sdata, chandef,
800 IEEE80211_CHANCTX_EXCLUSIVE);
802 } else if (local->open_count == local->monitors) {
803 local->_oper_channel = chandef->chan;
804 local->_oper_channel_type = cfg80211_get_chandef_type(chandef);
805 ieee80211_hw_config(local, 0);
809 local->monitor_chandef = *chandef;
810 mutex_unlock(&local->iflist_mtx);
815 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
816 const u8 *resp, size_t resp_len)
818 struct probe_resp *new, *old;
820 if (!resp || !resp_len)
823 old = rtnl_dereference(sdata->u.ap.probe_resp);
825 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
830 memcpy(new->data, resp, resp_len);
832 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
834 kfree_rcu(old, rcu_head);
839 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
840 struct cfg80211_beacon_data *params)
842 struct beacon_data *new, *old;
843 int new_head_len, new_tail_len;
845 u32 changed = BSS_CHANGED_BEACON;
847 old = rtnl_dereference(sdata->u.ap.beacon);
849 /* Need to have a beacon head if we don't have one yet */
850 if (!params->head && !old)
853 /* new or old head? */
855 new_head_len = params->head_len;
857 new_head_len = old->head_len;
859 /* new or old tail? */
860 if (params->tail || !old)
861 /* params->tail_len will be zero for !params->tail */
862 new_tail_len = params->tail_len;
864 new_tail_len = old->tail_len;
866 size = sizeof(*new) + new_head_len + new_tail_len;
868 new = kzalloc(size, GFP_KERNEL);
872 /* start filling the new info now */
875 * pointers go into the block we allocated,
876 * memory is | beacon_data | head | tail |
878 new->head = ((u8 *) new) + sizeof(*new);
879 new->tail = new->head + new_head_len;
880 new->head_len = new_head_len;
881 new->tail_len = new_tail_len;
885 memcpy(new->head, params->head, new_head_len);
887 memcpy(new->head, old->head, new_head_len);
889 /* copy in optional tail */
891 memcpy(new->tail, params->tail, new_tail_len);
894 memcpy(new->tail, old->tail, new_tail_len);
896 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
897 params->probe_resp_len);
901 changed |= BSS_CHANGED_AP_PROBE_RESP;
903 rcu_assign_pointer(sdata->u.ap.beacon, new);
906 kfree_rcu(old, rcu_head);
911 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
912 struct cfg80211_ap_settings *params)
914 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
915 struct beacon_data *old;
916 struct ieee80211_sub_if_data *vlan;
917 u32 changed = BSS_CHANGED_BEACON_INT |
918 BSS_CHANGED_BEACON_ENABLED |
924 old = rtnl_dereference(sdata->u.ap.beacon);
928 /* TODO: make hostapd tell us what it wants */
929 sdata->smps_mode = IEEE80211_SMPS_OFF;
930 sdata->needed_rx_chains = sdata->local->rx_chains;
931 sdata->radar_required = params->radar_required;
933 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef,
934 IEEE80211_CHANCTX_SHARED);
937 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
940 * Apply control port protocol, this allows us to
941 * not encrypt dynamic WEP control frames.
943 sdata->control_port_protocol = params->crypto.control_port_ethertype;
944 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
945 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
946 vlan->control_port_protocol =
947 params->crypto.control_port_ethertype;
948 vlan->control_port_no_encrypt =
949 params->crypto.control_port_no_encrypt;
952 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
953 sdata->vif.bss_conf.dtim_period = params->dtim_period;
954 sdata->vif.bss_conf.enable_beacon = true;
956 sdata->vif.bss_conf.ssid_len = params->ssid_len;
957 if (params->ssid_len)
958 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
960 sdata->vif.bss_conf.hidden_ssid =
961 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
963 sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
964 sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
966 err = ieee80211_assign_beacon(sdata, ¶ms->beacon);
971 err = drv_start_ap(sdata->local, sdata);
973 old = rtnl_dereference(sdata->u.ap.beacon);
975 kfree_rcu(old, rcu_head);
976 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
980 ieee80211_bss_info_change_notify(sdata, changed);
982 netif_carrier_on(dev);
983 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
984 netif_carrier_on(vlan->dev);
989 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
990 struct cfg80211_beacon_data *params)
992 struct ieee80211_sub_if_data *sdata;
993 struct beacon_data *old;
996 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
998 old = rtnl_dereference(sdata->u.ap.beacon);
1002 err = ieee80211_assign_beacon(sdata, params);
1005 ieee80211_bss_info_change_notify(sdata, err);
1009 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1011 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1012 struct ieee80211_sub_if_data *vlan;
1013 struct ieee80211_local *local = sdata->local;
1014 struct beacon_data *old_beacon;
1015 struct probe_resp *old_probe_resp;
1017 old_beacon = rtnl_dereference(sdata->u.ap.beacon);
1020 old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp);
1022 /* turn off carrier for this interface and dependent VLANs */
1023 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1024 netif_carrier_off(vlan->dev);
1025 netif_carrier_off(dev);
1027 /* remove beacon and probe response */
1028 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1029 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1030 kfree_rcu(old_beacon, rcu_head);
1032 kfree_rcu(old_probe_resp, rcu_head);
1034 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1035 sta_info_flush_defer(vlan);
1036 sta_info_flush_defer(sdata);
1038 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1039 sta_info_flush_cleanup(vlan);
1040 ieee80211_free_keys(vlan);
1042 sta_info_flush_cleanup(sdata);
1043 ieee80211_free_keys(sdata);
1045 sdata->vif.bss_conf.enable_beacon = false;
1046 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1047 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1049 drv_stop_ap(sdata->local, sdata);
1051 /* free all potentially still buffered bcast frames */
1052 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1053 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1055 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1056 ieee80211_vif_release_channel(sdata);
1061 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1062 struct iapp_layer2_update {
1063 u8 da[ETH_ALEN]; /* broadcast */
1064 u8 sa[ETH_ALEN]; /* STA addr */
1072 static void ieee80211_send_layer2_update(struct sta_info *sta)
1074 struct iapp_layer2_update *msg;
1075 struct sk_buff *skb;
1077 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1080 skb = dev_alloc_skb(sizeof(*msg));
1083 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1085 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1086 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1088 eth_broadcast_addr(msg->da);
1089 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1090 msg->len = htons(6);
1092 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1093 msg->control = 0xaf; /* XID response lsb.1111F101.
1094 * F=0 (no poll command; unsolicited frame) */
1095 msg->xid_info[0] = 0x81; /* XID format identifier */
1096 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1097 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1099 skb->dev = sta->sdata->dev;
1100 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1101 memset(skb->cb, 0, sizeof(skb->cb));
1105 static int sta_apply_auth_flags(struct ieee80211_local *local,
1106 struct sta_info *sta,
1111 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1112 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1113 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1114 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1119 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1120 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1121 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1122 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1127 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1128 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1129 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1130 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1131 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1138 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1139 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1140 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1141 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1146 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1147 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1148 test_sta_flag(sta, WLAN_STA_AUTH)) {
1149 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1157 static int sta_apply_parameters(struct ieee80211_local *local,
1158 struct sta_info *sta,
1159 struct station_parameters *params)
1164 struct ieee80211_supported_band *sband;
1165 struct ieee80211_sub_if_data *sdata = sta->sdata;
1166 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1169 sband = local->hw.wiphy->bands[band];
1171 mask = params->sta_flags_mask;
1172 set = params->sta_flags_set;
1174 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1176 * In mesh mode, ASSOCIATED isn't part of the nl80211
1177 * API but must follow AUTHENTICATED for driver state.
1179 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1180 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1181 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1182 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1183 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1185 * TDLS -- everything follows authorized, but
1186 * only becoming authorized is possible, not
1189 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1190 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1191 BIT(NL80211_STA_FLAG_ASSOCIATED);
1192 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1193 BIT(NL80211_STA_FLAG_ASSOCIATED);
1197 ret = sta_apply_auth_flags(local, sta, mask, set);
1201 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1202 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1203 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1205 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1208 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1209 if (set & BIT(NL80211_STA_FLAG_WME)) {
1210 set_sta_flag(sta, WLAN_STA_WME);
1211 sta->sta.wme = true;
1213 clear_sta_flag(sta, WLAN_STA_WME);
1214 sta->sta.wme = false;
1218 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1219 if (set & BIT(NL80211_STA_FLAG_MFP))
1220 set_sta_flag(sta, WLAN_STA_MFP);
1222 clear_sta_flag(sta, WLAN_STA_MFP);
1225 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1226 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1227 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1229 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1232 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1233 sta->sta.uapsd_queues = params->uapsd_queues;
1234 sta->sta.max_sp = params->max_sp;
1238 * cfg80211 validates this (1-2007) and allows setting the AID
1239 * only when creating a new station entry
1242 sta->sta.aid = params->aid;
1245 * Some of the following updates would be racy if called on an
1246 * existing station, via ieee80211_change_station(). However,
1247 * all such changes are rejected by cfg80211 except for updates
1248 * changing the supported rates on an existing but not yet used
1252 if (params->listen_interval >= 0)
1253 sta->listen_interval = params->listen_interval;
1255 if (params->supported_rates) {
1258 for (i = 0; i < params->supported_rates_len; i++) {
1259 int rate = (params->supported_rates[i] & 0x7f) * 5;
1260 for (j = 0; j < sband->n_bitrates; j++) {
1261 if (sband->bitrates[j].bitrate == rate)
1265 sta->sta.supp_rates[band] = rates;
1268 if (params->ht_capa)
1269 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1270 params->ht_capa, sta);
1272 if (params->vht_capa)
1273 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1274 params->vht_capa, sta);
1276 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1277 #ifdef CONFIG_MAC80211_MESH
1280 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1281 switch (params->plink_state) {
1282 case NL80211_PLINK_ESTAB:
1283 if (sta->plink_state != NL80211_PLINK_ESTAB)
1284 changed = mesh_plink_inc_estab_count(
1286 sta->plink_state = params->plink_state;
1288 ieee80211_mps_sta_status_update(sta);
1289 changed |= ieee80211_mps_set_sta_local_pm(sta,
1290 sdata->u.mesh.mshcfg.power_mode);
1292 case NL80211_PLINK_LISTEN:
1293 case NL80211_PLINK_BLOCKED:
1294 case NL80211_PLINK_OPN_SNT:
1295 case NL80211_PLINK_OPN_RCVD:
1296 case NL80211_PLINK_CNF_RCVD:
1297 case NL80211_PLINK_HOLDING:
1298 if (sta->plink_state == NL80211_PLINK_ESTAB)
1299 changed = mesh_plink_dec_estab_count(
1301 sta->plink_state = params->plink_state;
1303 ieee80211_mps_sta_status_update(sta);
1305 ieee80211_mps_local_status_update(sdata);
1313 switch (params->plink_action) {
1314 case NL80211_PLINK_ACTION_NO_ACTION:
1317 case NL80211_PLINK_ACTION_OPEN:
1318 changed |= mesh_plink_open(sta);
1320 case NL80211_PLINK_ACTION_BLOCK:
1321 changed |= mesh_plink_block(sta);
1325 if (params->local_pm)
1327 ieee80211_mps_set_sta_local_pm(sta,
1329 ieee80211_bss_info_change_notify(sdata, changed);
1336 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1337 u8 *mac, struct station_parameters *params)
1339 struct ieee80211_local *local = wiphy_priv(wiphy);
1340 struct sta_info *sta;
1341 struct ieee80211_sub_if_data *sdata;
1346 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1348 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1349 sdata->vif.type != NL80211_IFTYPE_AP)
1352 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1354 if (ether_addr_equal(mac, sdata->vif.addr))
1357 if (is_multicast_ether_addr(mac))
1360 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1365 * defaults -- if userspace wants something else we'll
1366 * change it accordingly in sta_apply_parameters()
1368 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1369 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1370 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1373 err = sta_apply_parameters(local, sta, params);
1375 sta_info_free(local, sta);
1380 * for TDLS, rate control should be initialized only when
1381 * rates are known and station is marked authorized
1383 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1384 rate_control_rate_init(sta);
1386 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1387 sdata->vif.type == NL80211_IFTYPE_AP;
1389 err = sta_info_insert_rcu(sta);
1396 ieee80211_send_layer2_update(sta);
1403 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1406 struct ieee80211_sub_if_data *sdata;
1408 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1411 return sta_info_destroy_addr_bss(sdata, mac);
1413 sta_info_flush(sdata);
1417 static int ieee80211_change_station(struct wiphy *wiphy,
1418 struct net_device *dev, u8 *mac,
1419 struct station_parameters *params)
1421 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1422 struct ieee80211_local *local = wiphy_priv(wiphy);
1423 struct sta_info *sta;
1424 struct ieee80211_sub_if_data *vlansdata;
1425 enum cfg80211_station_type statype;
1428 mutex_lock(&local->sta_mtx);
1430 sta = sta_info_get_bss(sdata, mac);
1436 switch (sdata->vif.type) {
1437 case NL80211_IFTYPE_MESH_POINT:
1438 if (sdata->u.mesh.user_mpm)
1439 statype = CFG80211_STA_MESH_PEER_USER;
1441 statype = CFG80211_STA_MESH_PEER_KERNEL;
1443 case NL80211_IFTYPE_ADHOC:
1444 statype = CFG80211_STA_IBSS;
1446 case NL80211_IFTYPE_STATION:
1447 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1448 statype = CFG80211_STA_AP_STA;
1451 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1452 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1454 statype = CFG80211_STA_TDLS_PEER_SETUP;
1456 case NL80211_IFTYPE_AP:
1457 case NL80211_IFTYPE_AP_VLAN:
1458 statype = CFG80211_STA_AP_CLIENT;
1465 err = cfg80211_check_station_change(wiphy, params, statype);
1469 if (params->vlan && params->vlan != sta->sdata->dev) {
1470 bool prev_4addr = false;
1471 bool new_4addr = false;
1473 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1475 if (params->vlan->ieee80211_ptr->use_4addr) {
1476 if (vlansdata->u.vlan.sta) {
1481 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1485 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1486 sta->sdata->u.vlan.sta) {
1487 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1491 sta->sdata = vlansdata;
1493 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1494 prev_4addr != new_4addr) {
1496 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1498 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1501 ieee80211_send_layer2_update(sta);
1504 err = sta_apply_parameters(local, sta, params);
1508 /* When peer becomes authorized, init rate control as well */
1509 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1510 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1511 rate_control_rate_init(sta);
1513 mutex_unlock(&local->sta_mtx);
1515 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1516 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1517 ieee80211_recalc_ps(local, -1);
1518 ieee80211_recalc_ps_vif(sdata);
1523 mutex_unlock(&local->sta_mtx);
1527 #ifdef CONFIG_MAC80211_MESH
1528 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1529 u8 *dst, u8 *next_hop)
1531 struct ieee80211_sub_if_data *sdata;
1532 struct mesh_path *mpath;
1533 struct sta_info *sta;
1536 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1539 sta = sta_info_get(sdata, next_hop);
1545 err = mesh_path_add(sdata, dst);
1551 mpath = mesh_path_lookup(sdata, dst);
1556 mesh_path_fix_nexthop(mpath, sta);
1562 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1565 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1568 return mesh_path_del(sdata, dst);
1570 mesh_path_flush_by_iface(sdata);
1574 static int ieee80211_change_mpath(struct wiphy *wiphy,
1575 struct net_device *dev,
1576 u8 *dst, u8 *next_hop)
1578 struct ieee80211_sub_if_data *sdata;
1579 struct mesh_path *mpath;
1580 struct sta_info *sta;
1582 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1586 sta = sta_info_get(sdata, next_hop);
1592 mpath = mesh_path_lookup(sdata, dst);
1598 mesh_path_fix_nexthop(mpath, sta);
1604 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1605 struct mpath_info *pinfo)
1607 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1610 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1612 memset(next_hop, 0, ETH_ALEN);
1614 memset(pinfo, 0, sizeof(*pinfo));
1616 pinfo->generation = mesh_paths_generation;
1618 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1621 MPATH_INFO_EXPTIME |
1622 MPATH_INFO_DISCOVERY_TIMEOUT |
1623 MPATH_INFO_DISCOVERY_RETRIES |
1626 pinfo->frame_qlen = mpath->frame_queue.qlen;
1627 pinfo->sn = mpath->sn;
1628 pinfo->metric = mpath->metric;
1629 if (time_before(jiffies, mpath->exp_time))
1630 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1631 pinfo->discovery_timeout =
1632 jiffies_to_msecs(mpath->discovery_timeout);
1633 pinfo->discovery_retries = mpath->discovery_retries;
1634 if (mpath->flags & MESH_PATH_ACTIVE)
1635 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1636 if (mpath->flags & MESH_PATH_RESOLVING)
1637 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1638 if (mpath->flags & MESH_PATH_SN_VALID)
1639 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1640 if (mpath->flags & MESH_PATH_FIXED)
1641 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1642 if (mpath->flags & MESH_PATH_RESOLVED)
1643 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1646 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1647 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1650 struct ieee80211_sub_if_data *sdata;
1651 struct mesh_path *mpath;
1653 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1656 mpath = mesh_path_lookup(sdata, dst);
1661 memcpy(dst, mpath->dst, ETH_ALEN);
1662 mpath_set_pinfo(mpath, next_hop, pinfo);
1667 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1668 int idx, u8 *dst, u8 *next_hop,
1669 struct mpath_info *pinfo)
1671 struct ieee80211_sub_if_data *sdata;
1672 struct mesh_path *mpath;
1674 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1677 mpath = mesh_path_lookup_by_idx(sdata, idx);
1682 memcpy(dst, mpath->dst, ETH_ALEN);
1683 mpath_set_pinfo(mpath, next_hop, pinfo);
1688 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1689 struct net_device *dev,
1690 struct mesh_config *conf)
1692 struct ieee80211_sub_if_data *sdata;
1693 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1695 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1699 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1701 return (mask >> (parm-1)) & 0x1;
1704 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1705 const struct mesh_setup *setup)
1709 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1710 struct ieee80211_sub_if_data, u.mesh);
1712 /* allocate information elements */
1716 if (setup->ie_len) {
1717 new_ie = kmemdup(setup->ie, setup->ie_len,
1722 ifmsh->ie_len = setup->ie_len;
1726 /* now copy the rest of the setup parameters */
1727 ifmsh->mesh_id_len = setup->mesh_id_len;
1728 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1729 ifmsh->mesh_sp_id = setup->sync_method;
1730 ifmsh->mesh_pp_id = setup->path_sel_proto;
1731 ifmsh->mesh_pm_id = setup->path_metric;
1732 ifmsh->user_mpm = setup->user_mpm;
1733 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1734 if (setup->is_authenticated)
1735 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1736 if (setup->is_secure)
1737 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1739 /* mcast rate setting in Mesh Node */
1740 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1741 sizeof(setup->mcast_rate));
1743 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1744 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1749 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1750 struct net_device *dev, u32 mask,
1751 const struct mesh_config *nconf)
1753 struct mesh_config *conf;
1754 struct ieee80211_sub_if_data *sdata;
1755 struct ieee80211_if_mesh *ifmsh;
1757 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1758 ifmsh = &sdata->u.mesh;
1760 /* Set the config options which we are interested in setting */
1761 conf = &(sdata->u.mesh.mshcfg);
1762 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1763 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1764 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1765 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1766 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1767 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1768 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1769 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1770 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1771 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1772 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1773 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1774 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1775 conf->element_ttl = nconf->element_ttl;
1776 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1777 if (ifmsh->user_mpm)
1779 conf->auto_open_plinks = nconf->auto_open_plinks;
1781 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1782 conf->dot11MeshNbrOffsetMaxNeighbor =
1783 nconf->dot11MeshNbrOffsetMaxNeighbor;
1784 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1785 conf->dot11MeshHWMPmaxPREQretries =
1786 nconf->dot11MeshHWMPmaxPREQretries;
1787 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1788 conf->path_refresh_time = nconf->path_refresh_time;
1789 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1790 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1791 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1792 conf->dot11MeshHWMPactivePathTimeout =
1793 nconf->dot11MeshHWMPactivePathTimeout;
1794 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1795 conf->dot11MeshHWMPpreqMinInterval =
1796 nconf->dot11MeshHWMPpreqMinInterval;
1797 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1798 conf->dot11MeshHWMPperrMinInterval =
1799 nconf->dot11MeshHWMPperrMinInterval;
1800 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1802 conf->dot11MeshHWMPnetDiameterTraversalTime =
1803 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1804 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1805 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1806 ieee80211_mesh_root_setup(ifmsh);
1808 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1809 /* our current gate announcement implementation rides on root
1810 * announcements, so require this ifmsh to also be a root node
1812 if (nconf->dot11MeshGateAnnouncementProtocol &&
1813 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1814 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1815 ieee80211_mesh_root_setup(ifmsh);
1817 conf->dot11MeshGateAnnouncementProtocol =
1818 nconf->dot11MeshGateAnnouncementProtocol;
1820 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1821 conf->dot11MeshHWMPRannInterval =
1822 nconf->dot11MeshHWMPRannInterval;
1823 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1824 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1825 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1826 /* our RSSI threshold implementation is supported only for
1827 * devices that report signal in dBm.
1829 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1831 conf->rssi_threshold = nconf->rssi_threshold;
1833 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1834 conf->ht_opmode = nconf->ht_opmode;
1835 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1836 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1838 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1839 conf->dot11MeshHWMPactivePathToRootTimeout =
1840 nconf->dot11MeshHWMPactivePathToRootTimeout;
1841 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1842 conf->dot11MeshHWMProotInterval =
1843 nconf->dot11MeshHWMProotInterval;
1844 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1845 conf->dot11MeshHWMPconfirmationInterval =
1846 nconf->dot11MeshHWMPconfirmationInterval;
1847 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1848 conf->power_mode = nconf->power_mode;
1849 ieee80211_mps_local_status_update(sdata);
1851 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1852 conf->dot11MeshAwakeWindowDuration =
1853 nconf->dot11MeshAwakeWindowDuration;
1854 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1858 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1859 const struct mesh_config *conf,
1860 const struct mesh_setup *setup)
1862 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1863 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1866 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1867 err = copy_mesh_setup(ifmsh, setup);
1871 /* can mesh use other SMPS modes? */
1872 sdata->smps_mode = IEEE80211_SMPS_OFF;
1873 sdata->needed_rx_chains = sdata->local->rx_chains;
1875 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1876 IEEE80211_CHANCTX_SHARED);
1880 return ieee80211_start_mesh(sdata);
1883 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1885 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1887 ieee80211_stop_mesh(sdata);
1888 ieee80211_vif_release_channel(sdata);
1894 static int ieee80211_change_bss(struct wiphy *wiphy,
1895 struct net_device *dev,
1896 struct bss_parameters *params)
1898 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1899 enum ieee80211_band band;
1902 if (!rtnl_dereference(sdata->u.ap.beacon))
1905 band = ieee80211_get_sdata_band(sdata);
1907 if (params->use_cts_prot >= 0) {
1908 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1909 changed |= BSS_CHANGED_ERP_CTS_PROT;
1911 if (params->use_short_preamble >= 0) {
1912 sdata->vif.bss_conf.use_short_preamble =
1913 params->use_short_preamble;
1914 changed |= BSS_CHANGED_ERP_PREAMBLE;
1917 if (!sdata->vif.bss_conf.use_short_slot &&
1918 band == IEEE80211_BAND_5GHZ) {
1919 sdata->vif.bss_conf.use_short_slot = true;
1920 changed |= BSS_CHANGED_ERP_SLOT;
1923 if (params->use_short_slot_time >= 0) {
1924 sdata->vif.bss_conf.use_short_slot =
1925 params->use_short_slot_time;
1926 changed |= BSS_CHANGED_ERP_SLOT;
1929 if (params->basic_rates) {
1932 struct ieee80211_supported_band *sband = wiphy->bands[band];
1934 for (i = 0; i < params->basic_rates_len; i++) {
1935 int rate = (params->basic_rates[i] & 0x7f) * 5;
1936 for (j = 0; j < sband->n_bitrates; j++) {
1937 if (sband->bitrates[j].bitrate == rate)
1941 sdata->vif.bss_conf.basic_rates = rates;
1942 changed |= BSS_CHANGED_BASIC_RATES;
1945 if (params->ap_isolate >= 0) {
1946 if (params->ap_isolate)
1947 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1949 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1952 if (params->ht_opmode >= 0) {
1953 sdata->vif.bss_conf.ht_operation_mode =
1954 (u16) params->ht_opmode;
1955 changed |= BSS_CHANGED_HT;
1958 if (params->p2p_ctwindow >= 0) {
1959 sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
1960 changed |= BSS_CHANGED_P2P_PS;
1963 if (params->p2p_opp_ps >= 0) {
1964 sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
1965 changed |= BSS_CHANGED_P2P_PS;
1968 ieee80211_bss_info_change_notify(sdata, changed);
1973 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1974 struct net_device *dev,
1975 struct ieee80211_txq_params *params)
1977 struct ieee80211_local *local = wiphy_priv(wiphy);
1978 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1979 struct ieee80211_tx_queue_params p;
1981 if (!local->ops->conf_tx)
1984 if (local->hw.queues < IEEE80211_NUM_ACS)
1987 memset(&p, 0, sizeof(p));
1988 p.aifs = params->aifs;
1989 p.cw_max = params->cwmax;
1990 p.cw_min = params->cwmin;
1991 p.txop = params->txop;
1994 * Setting tx queue params disables u-apsd because it's only
1995 * called in master mode.
1999 sdata->tx_conf[params->ac] = p;
2000 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2001 wiphy_debug(local->hw.wiphy,
2002 "failed to set TX queue parameters for AC %d\n",
2007 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2013 static int ieee80211_suspend(struct wiphy *wiphy,
2014 struct cfg80211_wowlan *wowlan)
2016 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2019 static int ieee80211_resume(struct wiphy *wiphy)
2021 return __ieee80211_resume(wiphy_priv(wiphy));
2024 #define ieee80211_suspend NULL
2025 #define ieee80211_resume NULL
2028 static int ieee80211_scan(struct wiphy *wiphy,
2029 struct cfg80211_scan_request *req)
2031 struct ieee80211_sub_if_data *sdata;
2033 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2035 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2036 case NL80211_IFTYPE_STATION:
2037 case NL80211_IFTYPE_ADHOC:
2038 case NL80211_IFTYPE_MESH_POINT:
2039 case NL80211_IFTYPE_P2P_CLIENT:
2040 case NL80211_IFTYPE_P2P_DEVICE:
2042 case NL80211_IFTYPE_P2P_GO:
2043 if (sdata->local->ops->hw_scan)
2046 * FIXME: implement NoA while scanning in software,
2047 * for now fall through to allow scanning only when
2048 * beaconing hasn't been configured yet
2050 case NL80211_IFTYPE_AP:
2052 * If the scan has been forced (and the driver supports
2053 * forcing), don't care about being beaconing already.
2054 * This will create problems to the attached stations (e.g. all
2055 * the frames sent while scanning on other channel will be
2058 if (sdata->u.ap.beacon &&
2059 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2060 !(req->flags & NL80211_SCAN_FLAG_AP)))
2067 return ieee80211_request_scan(sdata, req);
2071 ieee80211_sched_scan_start(struct wiphy *wiphy,
2072 struct net_device *dev,
2073 struct cfg80211_sched_scan_request *req)
2075 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2077 if (!sdata->local->ops->sched_scan_start)
2080 return ieee80211_request_sched_scan_start(sdata, req);
2084 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2086 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2088 if (!sdata->local->ops->sched_scan_stop)
2091 return ieee80211_request_sched_scan_stop(sdata);
2094 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2095 struct cfg80211_auth_request *req)
2097 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2100 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2101 struct cfg80211_assoc_request *req)
2103 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2106 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2107 struct cfg80211_deauth_request *req)
2109 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2112 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2113 struct cfg80211_disassoc_request *req)
2115 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2118 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2119 struct cfg80211_ibss_params *params)
2121 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2124 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2126 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2129 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2130 int rate[IEEE80211_NUM_BANDS])
2132 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2134 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2135 sizeof(int) * IEEE80211_NUM_BANDS);
2140 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2142 struct ieee80211_local *local = wiphy_priv(wiphy);
2145 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2146 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2152 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2153 err = drv_set_coverage_class(local, wiphy->coverage_class);
2159 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2160 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2166 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2167 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2169 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2171 if (changed & WIPHY_PARAM_RETRY_LONG) {
2172 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2174 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2177 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2178 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2183 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2184 struct wireless_dev *wdev,
2185 enum nl80211_tx_power_setting type, int mbm)
2187 struct ieee80211_local *local = wiphy_priv(wiphy);
2188 struct ieee80211_sub_if_data *sdata;
2191 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2194 case NL80211_TX_POWER_AUTOMATIC:
2195 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2197 case NL80211_TX_POWER_LIMITED:
2198 case NL80211_TX_POWER_FIXED:
2199 if (mbm < 0 || (mbm % 100))
2201 sdata->user_power_level = MBM_TO_DBM(mbm);
2205 ieee80211_recalc_txpower(sdata);
2211 case NL80211_TX_POWER_AUTOMATIC:
2212 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2214 case NL80211_TX_POWER_LIMITED:
2215 case NL80211_TX_POWER_FIXED:
2216 if (mbm < 0 || (mbm % 100))
2218 local->user_power_level = MBM_TO_DBM(mbm);
2222 mutex_lock(&local->iflist_mtx);
2223 list_for_each_entry(sdata, &local->interfaces, list)
2224 sdata->user_power_level = local->user_power_level;
2225 list_for_each_entry(sdata, &local->interfaces, list)
2226 ieee80211_recalc_txpower(sdata);
2227 mutex_unlock(&local->iflist_mtx);
2232 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2233 struct wireless_dev *wdev,
2236 struct ieee80211_local *local = wiphy_priv(wiphy);
2237 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2239 if (!local->use_chanctx)
2240 *dbm = local->hw.conf.power_level;
2242 *dbm = sdata->vif.bss_conf.txpower;
2247 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2250 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2252 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2257 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2259 struct ieee80211_local *local = wiphy_priv(wiphy);
2261 drv_rfkill_poll(local);
2264 #ifdef CONFIG_NL80211_TESTMODE
2265 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
2267 struct ieee80211_local *local = wiphy_priv(wiphy);
2269 if (!local->ops->testmode_cmd)
2272 return local->ops->testmode_cmd(&local->hw, data, len);
2275 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2276 struct sk_buff *skb,
2277 struct netlink_callback *cb,
2278 void *data, int len)
2280 struct ieee80211_local *local = wiphy_priv(wiphy);
2282 if (!local->ops->testmode_dump)
2285 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2289 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
2290 enum ieee80211_smps_mode smps_mode)
2293 enum ieee80211_smps_mode old_req;
2296 lockdep_assert_held(&sdata->u.mgd.mtx);
2298 old_req = sdata->u.mgd.req_smps;
2299 sdata->u.mgd.req_smps = smps_mode;
2301 if (old_req == smps_mode &&
2302 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2306 * If not associated, or current association is not an HT
2307 * association, there's no need to do anything, just store
2308 * the new value until we associate.
2310 if (!sdata->u.mgd.associated ||
2311 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2314 ap = sdata->u.mgd.associated->bssid;
2316 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2317 if (sdata->u.mgd.powersave)
2318 smps_mode = IEEE80211_SMPS_DYNAMIC;
2320 smps_mode = IEEE80211_SMPS_OFF;
2323 /* send SM PS frame to AP */
2324 err = ieee80211_send_smps_action(sdata, smps_mode,
2327 sdata->u.mgd.req_smps = old_req;
2332 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2333 bool enabled, int timeout)
2335 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2336 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2338 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
2339 sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
2342 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2345 if (enabled == sdata->u.mgd.powersave &&
2346 timeout == local->dynamic_ps_forced_timeout)
2349 sdata->u.mgd.powersave = enabled;
2350 local->dynamic_ps_forced_timeout = timeout;
2352 /* no change, but if automatic follow powersave */
2353 mutex_lock(&sdata->u.mgd.mtx);
2354 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
2355 mutex_unlock(&sdata->u.mgd.mtx);
2357 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2358 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2360 ieee80211_recalc_ps(local, -1);
2361 ieee80211_recalc_ps_vif(sdata);
2366 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2367 struct net_device *dev,
2368 s32 rssi_thold, u32 rssi_hyst)
2370 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2371 struct ieee80211_vif *vif = &sdata->vif;
2372 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2374 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2375 rssi_hyst == bss_conf->cqm_rssi_hyst)
2378 bss_conf->cqm_rssi_thold = rssi_thold;
2379 bss_conf->cqm_rssi_hyst = rssi_hyst;
2381 /* tell the driver upon association, unless already associated */
2382 if (sdata->u.mgd.associated &&
2383 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2384 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2389 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2390 struct net_device *dev,
2392 const struct cfg80211_bitrate_mask *mask)
2394 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2395 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2398 if (!ieee80211_sdata_running(sdata))
2401 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2402 ret = drv_set_bitrate_mask(local, sdata, mask);
2407 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2408 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2409 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
2410 sizeof(mask->control[i].mcs));
2416 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2417 struct ieee80211_sub_if_data *sdata,
2418 struct ieee80211_channel *channel,
2419 unsigned int duration, u64 *cookie,
2420 struct sk_buff *txskb,
2421 enum ieee80211_roc_type type)
2423 struct ieee80211_roc_work *roc, *tmp;
2424 bool queued = false;
2427 lockdep_assert_held(&local->mtx);
2429 if (local->use_chanctx && !local->ops->remain_on_channel)
2432 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2436 roc->chan = channel;
2437 roc->duration = duration;
2438 roc->req_duration = duration;
2441 roc->mgmt_tx_cookie = (unsigned long)txskb;
2443 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2444 INIT_LIST_HEAD(&roc->dependents);
2446 /* if there's one pending or we're scanning, queue this one */
2447 if (!list_empty(&local->roc_list) ||
2448 local->scanning || local->radar_detect_enabled)
2449 goto out_check_combine;
2451 /* if not HW assist, just queue & schedule work */
2452 if (!local->ops->remain_on_channel) {
2453 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2457 /* otherwise actually kick it off here (for error handling) */
2460 * If the duration is zero, then the driver
2461 * wouldn't actually do anything. Set it to
2464 * TODO: cancel the off-channel operation
2465 * when we get the SKB's TX status and
2466 * the wait time was zero before.
2471 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2477 roc->started = true;
2481 list_for_each_entry(tmp, &local->roc_list, list) {
2482 if (tmp->chan != channel || tmp->sdata != sdata)
2486 * Extend this ROC if possible:
2488 * If it hasn't started yet, just increase the duration
2489 * and add the new one to the list of dependents.
2490 * If the type of the new ROC has higher priority, modify the
2491 * type of the previous one to match that of the new one.
2493 if (!tmp->started) {
2494 list_add_tail(&roc->list, &tmp->dependents);
2495 tmp->duration = max(tmp->duration, roc->duration);
2496 tmp->type = max(tmp->type, roc->type);
2501 /* If it has already started, it's more difficult ... */
2502 if (local->ops->remain_on_channel) {
2503 unsigned long j = jiffies;
2506 * In the offloaded ROC case, if it hasn't begun, add
2507 * this new one to the dependent list to be handled
2508 * when the master one begins. If it has begun,
2509 * check that there's still a minimum time left and
2510 * if so, start this one, transmitting the frame, but
2511 * add it to the list directly after this one with
2512 * a reduced time so we'll ask the driver to execute
2513 * it right after finishing the previous one, in the
2514 * hope that it'll also be executed right afterwards,
2515 * effectively extending the old one.
2516 * If there's no minimum time left, just add it to the
2518 * TODO: the ROC type is ignored here, assuming that it
2519 * is better to immediately use the current ROC.
2521 if (!tmp->hw_begun) {
2522 list_add_tail(&roc->list, &tmp->dependents);
2527 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2528 tmp->hw_start_time +
2529 msecs_to_jiffies(tmp->duration))) {
2532 ieee80211_handle_roc_started(roc);
2534 new_dur = roc->duration -
2535 jiffies_to_msecs(tmp->hw_start_time +
2541 /* add right after tmp */
2542 list_add(&roc->list, &tmp->list);
2544 list_add_tail(&roc->list,
2549 } else if (del_timer_sync(&tmp->work.timer)) {
2550 unsigned long new_end;
2553 * In the software ROC case, cancel the timer, if
2554 * that fails then the finish work is already
2555 * queued/pending and thus we queue the new ROC
2556 * normally, if that succeeds then we can extend
2557 * the timer duration and TX the frame (if any.)
2560 list_add_tail(&roc->list, &tmp->dependents);
2563 new_end = jiffies + msecs_to_jiffies(roc->duration);
2565 /* ok, it was started & we canceled timer */
2566 if (time_after(new_end, tmp->work.timer.expires))
2567 mod_timer(&tmp->work.timer, new_end);
2569 add_timer(&tmp->work.timer);
2571 ieee80211_handle_roc_started(roc);
2578 list_add_tail(&roc->list, &local->roc_list);
2581 * cookie is either the roc cookie (for normal roc)
2582 * or the SKB (for mgmt TX)
2585 /* local->mtx protects this */
2586 local->roc_cookie_counter++;
2587 roc->cookie = local->roc_cookie_counter;
2588 /* wow, you wrapped 64 bits ... more likely a bug */
2589 if (WARN_ON(roc->cookie == 0)) {
2591 local->roc_cookie_counter++;
2593 *cookie = roc->cookie;
2595 *cookie = (unsigned long)txskb;
2601 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2602 struct wireless_dev *wdev,
2603 struct ieee80211_channel *chan,
2604 unsigned int duration,
2607 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2608 struct ieee80211_local *local = sdata->local;
2611 mutex_lock(&local->mtx);
2612 ret = ieee80211_start_roc_work(local, sdata, chan,
2613 duration, cookie, NULL,
2614 IEEE80211_ROC_TYPE_NORMAL);
2615 mutex_unlock(&local->mtx);
2620 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2621 u64 cookie, bool mgmt_tx)
2623 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2626 mutex_lock(&local->mtx);
2627 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2628 struct ieee80211_roc_work *dep, *tmp2;
2630 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2631 if (!mgmt_tx && dep->cookie != cookie)
2633 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2635 /* found dependent item -- just remove it */
2636 list_del(&dep->list);
2637 mutex_unlock(&local->mtx);
2639 ieee80211_roc_notify_destroy(dep);
2643 if (!mgmt_tx && roc->cookie != cookie)
2645 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2653 mutex_unlock(&local->mtx);
2658 * We found the item to cancel, so do that. Note that it
2659 * may have dependents, which we also cancel (and send
2660 * the expired signal for.) Not doing so would be quite
2661 * tricky here, but we may need to fix it later.
2664 if (local->ops->remain_on_channel) {
2665 if (found->started) {
2666 ret = drv_cancel_remain_on_channel(local);
2667 if (WARN_ON_ONCE(ret)) {
2668 mutex_unlock(&local->mtx);
2673 list_del(&found->list);
2676 ieee80211_start_next_roc(local);
2677 mutex_unlock(&local->mtx);
2679 ieee80211_roc_notify_destroy(found);
2681 /* work may be pending so use it all the time */
2682 found->abort = true;
2683 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2685 mutex_unlock(&local->mtx);
2687 /* work will clean up etc */
2688 flush_delayed_work(&found->work);
2694 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2695 struct wireless_dev *wdev,
2698 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2699 struct ieee80211_local *local = sdata->local;
2701 return ieee80211_cancel_roc(local, cookie, false);
2704 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2705 struct net_device *dev,
2706 struct cfg80211_chan_def *chandef)
2708 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2709 struct ieee80211_local *local = sdata->local;
2710 unsigned long timeout;
2713 if (!list_empty(&local->roc_list) || local->scanning)
2716 /* whatever, but channel contexts should not complain about that one */
2717 sdata->smps_mode = IEEE80211_SMPS_OFF;
2718 sdata->needed_rx_chains = local->rx_chains;
2719 sdata->radar_required = true;
2721 mutex_lock(&local->iflist_mtx);
2722 err = ieee80211_vif_use_channel(sdata, chandef,
2723 IEEE80211_CHANCTX_SHARED);
2724 mutex_unlock(&local->iflist_mtx);
2728 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2729 ieee80211_queue_delayed_work(&sdata->local->hw,
2730 &sdata->dfs_cac_timer_work, timeout);
2735 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
2736 struct ieee80211_channel *chan, bool offchan,
2737 unsigned int wait, const u8 *buf, size_t len,
2738 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
2740 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2741 struct ieee80211_local *local = sdata->local;
2742 struct sk_buff *skb;
2743 struct sta_info *sta;
2744 const struct ieee80211_mgmt *mgmt = (void *)buf;
2745 bool need_offchan = false;
2749 if (dont_wait_for_ack)
2750 flags = IEEE80211_TX_CTL_NO_ACK;
2752 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
2753 IEEE80211_TX_CTL_REQ_TX_STATUS;
2756 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
2758 switch (sdata->vif.type) {
2759 case NL80211_IFTYPE_ADHOC:
2760 if (!sdata->vif.bss_conf.ibss_joined)
2761 need_offchan = true;
2763 #ifdef CONFIG_MAC80211_MESH
2764 case NL80211_IFTYPE_MESH_POINT:
2765 if (ieee80211_vif_is_mesh(&sdata->vif) &&
2766 !sdata->u.mesh.mesh_id_len)
2767 need_offchan = true;
2770 case NL80211_IFTYPE_AP:
2771 case NL80211_IFTYPE_AP_VLAN:
2772 case NL80211_IFTYPE_P2P_GO:
2773 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
2774 !ieee80211_vif_is_mesh(&sdata->vif) &&
2775 !rcu_access_pointer(sdata->bss->beacon))
2776 need_offchan = true;
2777 if (!ieee80211_is_action(mgmt->frame_control) ||
2778 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
2781 sta = sta_info_get(sdata, mgmt->da);
2786 case NL80211_IFTYPE_STATION:
2787 case NL80211_IFTYPE_P2P_CLIENT:
2788 if (!sdata->u.mgd.associated)
2789 need_offchan = true;
2791 case NL80211_IFTYPE_P2P_DEVICE:
2792 need_offchan = true;
2798 mutex_lock(&local->mtx);
2800 /* Check if the operating channel is the requested channel */
2801 if (!need_offchan) {
2802 struct ieee80211_chanctx_conf *chanctx_conf;
2805 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2808 need_offchan = chan != chanctx_conf->def.chan;
2810 need_offchan = true;
2814 if (need_offchan && !offchan) {
2819 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
2824 skb_reserve(skb, local->hw.extra_tx_headroom);
2826 memcpy(skb_put(skb, len), buf, len);
2828 IEEE80211_SKB_CB(skb)->flags = flags;
2830 skb->dev = sdata->dev;
2832 if (!need_offchan) {
2833 *cookie = (unsigned long) skb;
2834 ieee80211_tx_skb(sdata, skb);
2839 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
2840 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2841 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
2842 IEEE80211_SKB_CB(skb)->hw_queue =
2843 local->hw.offchannel_tx_hw_queue;
2845 /* This will handle all kinds of coalescing and immediate TX */
2846 ret = ieee80211_start_roc_work(local, sdata, chan,
2848 IEEE80211_ROC_TYPE_MGMT_TX);
2852 mutex_unlock(&local->mtx);
2856 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2857 struct wireless_dev *wdev,
2860 struct ieee80211_local *local = wiphy_priv(wiphy);
2862 return ieee80211_cancel_roc(local, cookie, true);
2865 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2866 struct wireless_dev *wdev,
2867 u16 frame_type, bool reg)
2869 struct ieee80211_local *local = wiphy_priv(wiphy);
2870 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2872 switch (frame_type) {
2873 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH:
2874 if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
2875 struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
2878 ifibss->auth_frame_registrations++;
2880 ifibss->auth_frame_registrations--;
2883 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
2885 local->probe_req_reg++;
2887 local->probe_req_reg--;
2889 if (!local->open_count)
2892 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2899 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2901 struct ieee80211_local *local = wiphy_priv(wiphy);
2906 return drv_set_antenna(local, tx_ant, rx_ant);
2909 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2911 struct ieee80211_local *local = wiphy_priv(wiphy);
2913 return drv_get_antenna(local, tx_ant, rx_ant);
2916 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2918 struct ieee80211_local *local = wiphy_priv(wiphy);
2920 return drv_set_ringparam(local, tx, rx);
2923 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2924 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2926 struct ieee80211_local *local = wiphy_priv(wiphy);
2928 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2931 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2932 struct net_device *dev,
2933 struct cfg80211_gtk_rekey_data *data)
2935 struct ieee80211_local *local = wiphy_priv(wiphy);
2936 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2938 if (!local->ops->set_rekey_data)
2941 drv_set_rekey_data(local, sdata, data);
2946 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
2948 u8 *pos = (void *)skb_put(skb, 7);
2950 *pos++ = WLAN_EID_EXT_CAPABILITY;
2951 *pos++ = 5; /* len */
2956 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
2959 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
2961 struct ieee80211_local *local = sdata->local;
2965 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
2968 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
2969 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
2970 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
2971 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
2976 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
2977 u8 *peer, u8 *bssid)
2979 struct ieee80211_tdls_lnkie *lnkid;
2981 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
2983 lnkid->ie_type = WLAN_EID_LINK_ID;
2984 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
2986 memcpy(lnkid->bssid, bssid, ETH_ALEN);
2987 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
2988 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
2992 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
2993 u8 *peer, u8 action_code, u8 dialog_token,
2994 u16 status_code, struct sk_buff *skb)
2996 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2997 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
2998 struct ieee80211_tdls_data *tf;
3000 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3002 memcpy(tf->da, peer, ETH_ALEN);
3003 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3004 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3005 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3007 switch (action_code) {
3008 case WLAN_TDLS_SETUP_REQUEST:
3009 tf->category = WLAN_CATEGORY_TDLS;
3010 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3012 skb_put(skb, sizeof(tf->u.setup_req));
3013 tf->u.setup_req.dialog_token = dialog_token;
3014 tf->u.setup_req.capability =
3015 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3017 ieee80211_add_srates_ie(sdata, skb, false, band);
3018 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3019 ieee80211_tdls_add_ext_capab(skb);
3021 case WLAN_TDLS_SETUP_RESPONSE:
3022 tf->category = WLAN_CATEGORY_TDLS;
3023 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3025 skb_put(skb, sizeof(tf->u.setup_resp));
3026 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3027 tf->u.setup_resp.dialog_token = dialog_token;
3028 tf->u.setup_resp.capability =
3029 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3031 ieee80211_add_srates_ie(sdata, skb, false, band);
3032 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3033 ieee80211_tdls_add_ext_capab(skb);
3035 case WLAN_TDLS_SETUP_CONFIRM:
3036 tf->category = WLAN_CATEGORY_TDLS;
3037 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3039 skb_put(skb, sizeof(tf->u.setup_cfm));
3040 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3041 tf->u.setup_cfm.dialog_token = dialog_token;
3043 case WLAN_TDLS_TEARDOWN:
3044 tf->category = WLAN_CATEGORY_TDLS;
3045 tf->action_code = WLAN_TDLS_TEARDOWN;
3047 skb_put(skb, sizeof(tf->u.teardown));
3048 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3050 case WLAN_TDLS_DISCOVERY_REQUEST:
3051 tf->category = WLAN_CATEGORY_TDLS;
3052 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3054 skb_put(skb, sizeof(tf->u.discover_req));
3055 tf->u.discover_req.dialog_token = dialog_token;
3065 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3066 u8 *peer, u8 action_code, u8 dialog_token,
3067 u16 status_code, struct sk_buff *skb)
3069 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3070 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3071 struct ieee80211_mgmt *mgmt;
3073 mgmt = (void *)skb_put(skb, 24);
3074 memset(mgmt, 0, 24);
3075 memcpy(mgmt->da, peer, ETH_ALEN);
3076 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3077 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3079 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3080 IEEE80211_STYPE_ACTION);
3082 switch (action_code) {
3083 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3084 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3085 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3086 mgmt->u.action.u.tdls_discover_resp.action_code =
3087 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3088 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3090 mgmt->u.action.u.tdls_discover_resp.capability =
3091 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3093 ieee80211_add_srates_ie(sdata, skb, false, band);
3094 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3095 ieee80211_tdls_add_ext_capab(skb);
3104 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3105 u8 *peer, u8 action_code, u8 dialog_token,
3106 u16 status_code, const u8 *extra_ies,
3107 size_t extra_ies_len)
3109 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3110 struct ieee80211_local *local = sdata->local;
3111 struct sk_buff *skb = NULL;
3115 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3118 /* make sure we are in managed mode, and associated */
3119 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3120 !sdata->u.mgd.associated)
3123 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3126 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3127 max(sizeof(struct ieee80211_mgmt),
3128 sizeof(struct ieee80211_tdls_data)) +
3129 50 + /* supported rates */
3132 sizeof(struct ieee80211_tdls_lnkie));
3136 skb_reserve(skb, local->hw.extra_tx_headroom);
3138 switch (action_code) {
3139 case WLAN_TDLS_SETUP_REQUEST:
3140 case WLAN_TDLS_SETUP_RESPONSE:
3141 case WLAN_TDLS_SETUP_CONFIRM:
3142 case WLAN_TDLS_TEARDOWN:
3143 case WLAN_TDLS_DISCOVERY_REQUEST:
3144 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3145 action_code, dialog_token,
3147 send_direct = false;
3149 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3150 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3151 dialog_token, status_code,
3164 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3166 /* the TDLS link IE is always added last */
3167 switch (action_code) {
3168 case WLAN_TDLS_SETUP_REQUEST:
3169 case WLAN_TDLS_SETUP_CONFIRM:
3170 case WLAN_TDLS_TEARDOWN:
3171 case WLAN_TDLS_DISCOVERY_REQUEST:
3172 /* we are the initiator */
3173 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3174 sdata->u.mgd.bssid);
3176 case WLAN_TDLS_SETUP_RESPONSE:
3177 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3178 /* we are the responder */
3179 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3180 sdata->u.mgd.bssid);
3188 ieee80211_tx_skb(sdata, skb);
3193 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3194 * we should default to AC_VI.
3196 switch (action_code) {
3197 case WLAN_TDLS_SETUP_REQUEST:
3198 case WLAN_TDLS_SETUP_RESPONSE:
3199 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3203 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3208 /* disable bottom halves when entering the Tx path */
3210 ret = ieee80211_subif_start_xmit(skb, dev);
3220 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3221 u8 *peer, enum nl80211_tdls_operation oper)
3223 struct sta_info *sta;
3224 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3226 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3229 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3232 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3235 case NL80211_TDLS_ENABLE_LINK:
3237 sta = sta_info_get(sdata, peer);
3243 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3246 case NL80211_TDLS_DISABLE_LINK:
3247 return sta_info_destroy_addr(sdata, peer);
3248 case NL80211_TDLS_TEARDOWN:
3249 case NL80211_TDLS_SETUP:
3250 case NL80211_TDLS_DISCOVERY_REQ:
3251 /* We don't support in-driver setup/teardown/discovery */
3260 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3261 const u8 *peer, u64 *cookie)
3263 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3264 struct ieee80211_local *local = sdata->local;
3265 struct ieee80211_qos_hdr *nullfunc;
3266 struct sk_buff *skb;
3267 int size = sizeof(*nullfunc);
3270 struct ieee80211_tx_info *info;
3271 struct sta_info *sta;
3272 struct ieee80211_chanctx_conf *chanctx_conf;
3273 enum ieee80211_band band;
3276 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3277 if (WARN_ON(!chanctx_conf)) {
3281 band = chanctx_conf->def.chan->band;
3282 sta = sta_info_get(sdata, peer);
3284 qos = test_sta_flag(sta, WLAN_STA_WME);
3291 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3292 IEEE80211_STYPE_QOS_NULLFUNC |
3293 IEEE80211_FCTL_FROMDS);
3296 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3297 IEEE80211_STYPE_NULLFUNC |
3298 IEEE80211_FCTL_FROMDS);
3301 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3309 skb_reserve(skb, local->hw.extra_tx_headroom);
3311 nullfunc = (void *) skb_put(skb, size);
3312 nullfunc->frame_control = fc;
3313 nullfunc->duration_id = 0;
3314 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3315 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3316 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3317 nullfunc->seq_ctrl = 0;
3319 info = IEEE80211_SKB_CB(skb);
3321 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3322 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3324 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3327 nullfunc->qos_ctrl = cpu_to_le16(7);
3330 ieee80211_xmit(sdata, skb, band);
3334 *cookie = (unsigned long) skb;
3338 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3339 struct wireless_dev *wdev,
3340 struct cfg80211_chan_def *chandef)
3342 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3343 struct ieee80211_local *local = wiphy_priv(wiphy);
3344 struct ieee80211_chanctx_conf *chanctx_conf;
3348 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3350 *chandef = chanctx_conf->def;
3352 } else if (local->open_count > 0 &&
3353 local->open_count == local->monitors &&
3354 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3355 if (local->use_chanctx)
3356 *chandef = local->monitor_chandef;
3358 cfg80211_chandef_create(chandef,
3359 local->_oper_channel,
3360 local->_oper_channel_type);
3369 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3371 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3375 struct cfg80211_ops mac80211_config_ops = {
3376 .add_virtual_intf = ieee80211_add_iface,
3377 .del_virtual_intf = ieee80211_del_iface,
3378 .change_virtual_intf = ieee80211_change_iface,
3379 .start_p2p_device = ieee80211_start_p2p_device,
3380 .stop_p2p_device = ieee80211_stop_p2p_device,
3381 .add_key = ieee80211_add_key,
3382 .del_key = ieee80211_del_key,
3383 .get_key = ieee80211_get_key,
3384 .set_default_key = ieee80211_config_default_key,
3385 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3386 .start_ap = ieee80211_start_ap,
3387 .change_beacon = ieee80211_change_beacon,
3388 .stop_ap = ieee80211_stop_ap,
3389 .add_station = ieee80211_add_station,
3390 .del_station = ieee80211_del_station,
3391 .change_station = ieee80211_change_station,
3392 .get_station = ieee80211_get_station,
3393 .dump_station = ieee80211_dump_station,
3394 .dump_survey = ieee80211_dump_survey,
3395 #ifdef CONFIG_MAC80211_MESH
3396 .add_mpath = ieee80211_add_mpath,
3397 .del_mpath = ieee80211_del_mpath,
3398 .change_mpath = ieee80211_change_mpath,
3399 .get_mpath = ieee80211_get_mpath,
3400 .dump_mpath = ieee80211_dump_mpath,
3401 .update_mesh_config = ieee80211_update_mesh_config,
3402 .get_mesh_config = ieee80211_get_mesh_config,
3403 .join_mesh = ieee80211_join_mesh,
3404 .leave_mesh = ieee80211_leave_mesh,
3406 .change_bss = ieee80211_change_bss,
3407 .set_txq_params = ieee80211_set_txq_params,
3408 .set_monitor_channel = ieee80211_set_monitor_channel,
3409 .suspend = ieee80211_suspend,
3410 .resume = ieee80211_resume,
3411 .scan = ieee80211_scan,
3412 .sched_scan_start = ieee80211_sched_scan_start,
3413 .sched_scan_stop = ieee80211_sched_scan_stop,
3414 .auth = ieee80211_auth,
3415 .assoc = ieee80211_assoc,
3416 .deauth = ieee80211_deauth,
3417 .disassoc = ieee80211_disassoc,
3418 .join_ibss = ieee80211_join_ibss,
3419 .leave_ibss = ieee80211_leave_ibss,
3420 .set_mcast_rate = ieee80211_set_mcast_rate,
3421 .set_wiphy_params = ieee80211_set_wiphy_params,
3422 .set_tx_power = ieee80211_set_tx_power,
3423 .get_tx_power = ieee80211_get_tx_power,
3424 .set_wds_peer = ieee80211_set_wds_peer,
3425 .rfkill_poll = ieee80211_rfkill_poll,
3426 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3427 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3428 .set_power_mgmt = ieee80211_set_power_mgmt,
3429 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3430 .remain_on_channel = ieee80211_remain_on_channel,
3431 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3432 .mgmt_tx = ieee80211_mgmt_tx,
3433 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3434 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3435 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3436 .set_antenna = ieee80211_set_antenna,
3437 .get_antenna = ieee80211_get_antenna,
3438 .set_ringparam = ieee80211_set_ringparam,
3439 .get_ringparam = ieee80211_get_ringparam,
3440 .set_rekey_data = ieee80211_set_rekey_data,
3441 .tdls_oper = ieee80211_tdls_oper,
3442 .tdls_mgmt = ieee80211_tdls_mgmt,
3443 .probe_client = ieee80211_probe_client,
3444 .set_noack_map = ieee80211_set_noack_map,
3446 .set_wakeup = ieee80211_set_wakeup,
3448 .get_et_sset_count = ieee80211_get_et_sset_count,
3449 .get_et_stats = ieee80211_get_et_stats,
3450 .get_et_strings = ieee80211_get_et_strings,
3451 .get_channel = ieee80211_cfg_get_channel,
3452 .start_radar_detection = ieee80211_start_radar_detection,