2 * mac80211 configuration hooks for cfg80211
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2015 Intel Mobile Communications GmbH
7 * This file is GPLv2 as found in COPYING.
10 #include <linux/ieee80211.h>
11 #include <linux/nl80211.h>
12 #include <linux/rtnetlink.h>
13 #include <linux/slab.h>
14 #include <net/net_namespace.h>
15 #include <linux/rcupdate.h>
16 #include <linux/if_ether.h>
17 #include <net/cfg80211.h>
18 #include "ieee80211_i.h"
19 #include "driver-ops.h"
24 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
26 unsigned char name_assign_type,
27 enum nl80211_iftype type,
29 struct vif_params *params)
31 struct ieee80211_local *local = wiphy_priv(wiphy);
32 struct wireless_dev *wdev;
33 struct ieee80211_sub_if_data *sdata;
36 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
40 if (type == NL80211_IFTYPE_MONITOR && flags) {
41 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
42 sdata->u.mntr_flags = *flags;
48 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
50 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
55 static int ieee80211_change_iface(struct wiphy *wiphy,
56 struct net_device *dev,
57 enum nl80211_iftype type, u32 *flags,
58 struct vif_params *params)
60 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63 ret = ieee80211_if_change_type(sdata, type);
67 if (type == NL80211_IFTYPE_AP_VLAN &&
68 params && params->use_4addr == 0)
69 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
70 else if (type == NL80211_IFTYPE_STATION &&
71 params && params->use_4addr >= 0)
72 sdata->u.mgd.use_4addr = params->use_4addr;
74 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
75 struct ieee80211_local *local = sdata->local;
77 if (ieee80211_sdata_running(sdata)) {
78 u32 mask = MONITOR_FLAG_COOK_FRAMES |
82 * Prohibit MONITOR_FLAG_COOK_FRAMES and
83 * MONITOR_FLAG_ACTIVE to be changed while the
85 * Else we would need to add a lot of cruft
86 * to update everything:
87 * cooked_mntrs, monitor and all fif_* counters
88 * reconfigure hardware
90 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
93 ieee80211_adjust_monitor_flags(sdata, -1);
94 sdata->u.mntr_flags = *flags;
95 ieee80211_adjust_monitor_flags(sdata, 1);
97 ieee80211_configure_filter(local);
100 * Because the interface is down, ieee80211_do_stop
101 * and ieee80211_do_open take care of "everything"
102 * mentioned in the comment above.
104 sdata->u.mntr_flags = *flags;
111 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
112 struct wireless_dev *wdev)
114 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
117 mutex_lock(&sdata->local->chanctx_mtx);
118 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
119 mutex_unlock(&sdata->local->chanctx_mtx);
123 return ieee80211_do_open(wdev, true);
126 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
127 struct wireless_dev *wdev)
129 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
132 static int ieee80211_set_noack_map(struct wiphy *wiphy,
133 struct net_device *dev,
136 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
138 sdata->noack_map = noack_map;
140 ieee80211_check_fast_xmit_iface(sdata);
145 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
146 u8 key_idx, bool pairwise, const u8 *mac_addr,
147 struct key_params *params)
149 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
150 struct ieee80211_local *local = sdata->local;
151 struct sta_info *sta = NULL;
152 const struct ieee80211_cipher_scheme *cs = NULL;
153 struct ieee80211_key *key;
156 if (!ieee80211_sdata_running(sdata))
159 /* reject WEP and TKIP keys if WEP failed to initialize */
160 switch (params->cipher) {
161 case WLAN_CIPHER_SUITE_WEP40:
162 case WLAN_CIPHER_SUITE_TKIP:
163 case WLAN_CIPHER_SUITE_WEP104:
164 if (IS_ERR(local->wep_tx_tfm))
167 case WLAN_CIPHER_SUITE_CCMP:
168 case WLAN_CIPHER_SUITE_CCMP_256:
169 case WLAN_CIPHER_SUITE_AES_CMAC:
170 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
171 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
172 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
173 case WLAN_CIPHER_SUITE_GCMP:
174 case WLAN_CIPHER_SUITE_GCMP_256:
177 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
181 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
182 params->key, params->seq_len, params->seq,
188 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
190 mutex_lock(&local->sta_mtx);
193 if (ieee80211_vif_is_mesh(&sdata->vif))
194 sta = sta_info_get(sdata, mac_addr);
196 sta = sta_info_get_bss(sdata, mac_addr);
198 * The ASSOC test makes sure the driver is ready to
199 * receive the key. When wpa_supplicant has roamed
200 * using FT, it attempts to set the key before
201 * association has completed, this rejects that attempt
202 * so it will set the key again after association.
204 * TODO: accept the key if we have a station entry and
205 * add it to the device after the station.
207 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
208 ieee80211_key_free_unused(key);
214 switch (sdata->vif.type) {
215 case NL80211_IFTYPE_STATION:
216 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
217 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
219 case NL80211_IFTYPE_AP:
220 case NL80211_IFTYPE_AP_VLAN:
221 /* Keys without a station are used for TX only */
222 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
223 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
225 case NL80211_IFTYPE_ADHOC:
228 case NL80211_IFTYPE_MESH_POINT:
229 #ifdef CONFIG_MAC80211_MESH
230 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
231 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
234 case NL80211_IFTYPE_WDS:
235 case NL80211_IFTYPE_MONITOR:
236 case NL80211_IFTYPE_P2P_DEVICE:
237 case NL80211_IFTYPE_UNSPECIFIED:
238 case NUM_NL80211_IFTYPES:
239 case NL80211_IFTYPE_P2P_CLIENT:
240 case NL80211_IFTYPE_P2P_GO:
241 case NL80211_IFTYPE_OCB:
242 /* shouldn't happen */
248 sta->cipher_scheme = cs;
250 err = ieee80211_key_link(key, sdata, sta);
253 mutex_unlock(&local->sta_mtx);
258 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
259 u8 key_idx, bool pairwise, const u8 *mac_addr)
261 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
262 struct ieee80211_local *local = sdata->local;
263 struct sta_info *sta;
264 struct ieee80211_key *key = NULL;
267 mutex_lock(&local->sta_mtx);
268 mutex_lock(&local->key_mtx);
273 sta = sta_info_get_bss(sdata, mac_addr);
278 key = key_mtx_dereference(local, sta->ptk[key_idx]);
280 key = key_mtx_dereference(local, sta->gtk[key_idx]);
282 key = key_mtx_dereference(local, sdata->keys[key_idx]);
289 ieee80211_key_free(key, true);
293 mutex_unlock(&local->key_mtx);
294 mutex_unlock(&local->sta_mtx);
299 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
300 u8 key_idx, bool pairwise, const u8 *mac_addr,
302 void (*callback)(void *cookie,
303 struct key_params *params))
305 struct ieee80211_sub_if_data *sdata;
306 struct sta_info *sta = NULL;
308 struct key_params params;
309 struct ieee80211_key *key = NULL;
314 struct ieee80211_key_seq kseq = {};
316 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
321 sta = sta_info_get_bss(sdata, mac_addr);
325 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
326 key = rcu_dereference(sta->ptk[key_idx]);
327 else if (!pairwise &&
328 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
329 key = rcu_dereference(sta->gtk[key_idx]);
331 key = rcu_dereference(sdata->keys[key_idx]);
336 memset(¶ms, 0, sizeof(params));
338 params.cipher = key->conf.cipher;
340 switch (key->conf.cipher) {
341 case WLAN_CIPHER_SUITE_TKIP:
342 iv32 = key->u.tkip.tx.iv32;
343 iv16 = key->u.tkip.tx.iv16;
345 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
346 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
347 drv_get_key_seq(sdata->local, key, &kseq);
348 iv32 = kseq.tkip.iv32;
349 iv16 = kseq.tkip.iv16;
352 seq[0] = iv16 & 0xff;
353 seq[1] = (iv16 >> 8) & 0xff;
354 seq[2] = iv32 & 0xff;
355 seq[3] = (iv32 >> 8) & 0xff;
356 seq[4] = (iv32 >> 16) & 0xff;
357 seq[5] = (iv32 >> 24) & 0xff;
361 case WLAN_CIPHER_SUITE_CCMP:
362 case WLAN_CIPHER_SUITE_CCMP_256:
363 case WLAN_CIPHER_SUITE_AES_CMAC:
364 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
365 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
366 offsetof(typeof(kseq), aes_cmac));
367 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
368 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
369 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
370 offsetof(typeof(kseq), aes_gmac));
371 case WLAN_CIPHER_SUITE_GCMP:
372 case WLAN_CIPHER_SUITE_GCMP_256:
373 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
374 offsetof(typeof(kseq), gcmp));
376 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
377 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
378 drv_get_key_seq(sdata->local, key, &kseq);
379 memcpy(seq, kseq.ccmp.pn, 6);
381 pn64 = atomic64_read(&key->conf.tx_pn);
393 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
395 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
397 drv_get_key_seq(sdata->local, key, &kseq);
398 params.seq = kseq.hw.seq;
399 params.seq_len = kseq.hw.seq_len;
403 params.key = key->conf.key;
404 params.key_len = key->conf.keylen;
406 callback(cookie, ¶ms);
414 static int ieee80211_config_default_key(struct wiphy *wiphy,
415 struct net_device *dev,
416 u8 key_idx, bool uni,
419 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
421 ieee80211_set_default_key(sdata, key_idx, uni, multi);
426 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
427 struct net_device *dev,
430 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
432 ieee80211_set_default_mgmt_key(sdata, key_idx);
437 void sta_set_rate_info_tx(struct sta_info *sta,
438 const struct ieee80211_tx_rate *rate,
439 struct rate_info *rinfo)
442 if (rate->flags & IEEE80211_TX_RC_MCS) {
443 rinfo->flags |= RATE_INFO_FLAGS_MCS;
444 rinfo->mcs = rate->idx;
445 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
446 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
447 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
448 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
450 struct ieee80211_supported_band *sband;
451 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
454 sband = sta->local->hw.wiphy->bands[
455 ieee80211_get_sdata_band(sta->sdata)];
456 brate = sband->bitrates[rate->idx].bitrate;
457 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
459 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
460 rinfo->bw = RATE_INFO_BW_40;
461 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
462 rinfo->bw = RATE_INFO_BW_80;
463 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
464 rinfo->bw = RATE_INFO_BW_160;
466 rinfo->bw = RATE_INFO_BW_20;
467 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
468 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
471 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
472 int idx, u8 *mac, struct station_info *sinfo)
474 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
475 struct ieee80211_local *local = sdata->local;
476 struct sta_info *sta;
479 mutex_lock(&local->sta_mtx);
481 sta = sta_info_get_by_idx(sdata, idx);
484 memcpy(mac, sta->sta.addr, ETH_ALEN);
485 sta_set_sinfo(sta, sinfo);
488 mutex_unlock(&local->sta_mtx);
493 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
494 int idx, struct survey_info *survey)
496 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
498 return drv_get_survey(local, idx, survey);
501 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
502 const u8 *mac, struct station_info *sinfo)
504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
505 struct ieee80211_local *local = sdata->local;
506 struct sta_info *sta;
509 mutex_lock(&local->sta_mtx);
511 sta = sta_info_get_bss(sdata, mac);
514 sta_set_sinfo(sta, sinfo);
517 mutex_unlock(&local->sta_mtx);
522 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
523 struct cfg80211_chan_def *chandef)
525 struct ieee80211_local *local = wiphy_priv(wiphy);
526 struct ieee80211_sub_if_data *sdata;
529 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
532 mutex_lock(&local->mtx);
533 mutex_lock(&local->iflist_mtx);
534 if (local->use_chanctx) {
535 sdata = rcu_dereference_protected(
536 local->monitor_sdata,
537 lockdep_is_held(&local->iflist_mtx));
539 ieee80211_vif_release_channel(sdata);
540 ret = ieee80211_vif_use_channel(sdata, chandef,
541 IEEE80211_CHANCTX_EXCLUSIVE);
543 } else if (local->open_count == local->monitors) {
544 local->_oper_chandef = *chandef;
545 ieee80211_hw_config(local, 0);
549 local->monitor_chandef = *chandef;
550 mutex_unlock(&local->iflist_mtx);
551 mutex_unlock(&local->mtx);
556 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
557 const u8 *resp, size_t resp_len,
558 const struct ieee80211_csa_settings *csa)
560 struct probe_resp *new, *old;
562 if (!resp || !resp_len)
565 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
567 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
572 memcpy(new->data, resp, resp_len);
575 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
576 csa->n_counter_offsets_presp *
577 sizeof(new->csa_counter_offsets[0]));
579 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
581 kfree_rcu(old, rcu_head);
586 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
587 struct cfg80211_beacon_data *params,
588 const struct ieee80211_csa_settings *csa)
590 struct beacon_data *new, *old;
591 int new_head_len, new_tail_len;
593 u32 changed = BSS_CHANGED_BEACON;
595 old = sdata_dereference(sdata->u.ap.beacon, sdata);
598 /* Need to have a beacon head if we don't have one yet */
599 if (!params->head && !old)
602 /* new or old head? */
604 new_head_len = params->head_len;
606 new_head_len = old->head_len;
608 /* new or old tail? */
609 if (params->tail || !old)
610 /* params->tail_len will be zero for !params->tail */
611 new_tail_len = params->tail_len;
613 new_tail_len = old->tail_len;
615 size = sizeof(*new) + new_head_len + new_tail_len;
617 new = kzalloc(size, GFP_KERNEL);
621 /* start filling the new info now */
624 * pointers go into the block we allocated,
625 * memory is | beacon_data | head | tail |
627 new->head = ((u8 *) new) + sizeof(*new);
628 new->tail = new->head + new_head_len;
629 new->head_len = new_head_len;
630 new->tail_len = new_tail_len;
633 new->csa_current_counter = csa->count;
634 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
635 csa->n_counter_offsets_beacon *
636 sizeof(new->csa_counter_offsets[0]));
641 memcpy(new->head, params->head, new_head_len);
643 memcpy(new->head, old->head, new_head_len);
645 /* copy in optional tail */
647 memcpy(new->tail, params->tail, new_tail_len);
650 memcpy(new->tail, old->tail, new_tail_len);
652 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
653 params->probe_resp_len, csa);
657 changed |= BSS_CHANGED_AP_PROBE_RESP;
659 rcu_assign_pointer(sdata->u.ap.beacon, new);
662 kfree_rcu(old, rcu_head);
667 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
668 struct cfg80211_ap_settings *params)
670 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
671 struct ieee80211_local *local = sdata->local;
672 struct beacon_data *old;
673 struct ieee80211_sub_if_data *vlan;
674 u32 changed = BSS_CHANGED_BEACON_INT |
675 BSS_CHANGED_BEACON_ENABLED |
682 old = sdata_dereference(sdata->u.ap.beacon, sdata);
686 switch (params->smps_mode) {
687 case NL80211_SMPS_OFF:
688 sdata->smps_mode = IEEE80211_SMPS_OFF;
690 case NL80211_SMPS_STATIC:
691 sdata->smps_mode = IEEE80211_SMPS_STATIC;
693 case NL80211_SMPS_DYNAMIC:
694 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
699 sdata->needed_rx_chains = sdata->local->rx_chains;
701 mutex_lock(&local->mtx);
702 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef,
703 IEEE80211_CHANCTX_SHARED);
705 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
706 mutex_unlock(&local->mtx);
711 * Apply control port protocol, this allows us to
712 * not encrypt dynamic WEP control frames.
714 sdata->control_port_protocol = params->crypto.control_port_ethertype;
715 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
716 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
720 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
721 vlan->control_port_protocol =
722 params->crypto.control_port_ethertype;
723 vlan->control_port_no_encrypt =
724 params->crypto.control_port_no_encrypt;
725 vlan->encrypt_headroom =
726 ieee80211_cs_headroom(sdata->local,
731 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
732 sdata->vif.bss_conf.dtim_period = params->dtim_period;
733 sdata->vif.bss_conf.enable_beacon = true;
735 sdata->vif.bss_conf.ssid_len = params->ssid_len;
736 if (params->ssid_len)
737 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
739 sdata->vif.bss_conf.hidden_ssid =
740 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
742 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
743 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
744 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
745 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
746 if (params->p2p_opp_ps)
747 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
748 IEEE80211_P2P_OPPPS_ENABLE_BIT;
750 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL);
752 ieee80211_vif_release_channel(sdata);
757 err = drv_start_ap(sdata->local, sdata);
759 old = sdata_dereference(sdata->u.ap.beacon, sdata);
762 kfree_rcu(old, rcu_head);
763 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
764 ieee80211_vif_release_channel(sdata);
768 ieee80211_recalc_dtim(local, sdata);
769 ieee80211_bss_info_change_notify(sdata, changed);
771 netif_carrier_on(dev);
772 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
773 netif_carrier_on(vlan->dev);
778 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
779 struct cfg80211_beacon_data *params)
781 struct ieee80211_sub_if_data *sdata;
782 struct beacon_data *old;
785 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
786 sdata_assert_lock(sdata);
788 /* don't allow changing the beacon while CSA is in place - offset
789 * of channel switch counter may change
791 if (sdata->vif.csa_active)
794 old = sdata_dereference(sdata->u.ap.beacon, sdata);
798 err = ieee80211_assign_beacon(sdata, params, NULL);
801 ieee80211_bss_info_change_notify(sdata, err);
805 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
807 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
808 struct ieee80211_sub_if_data *vlan;
809 struct ieee80211_local *local = sdata->local;
810 struct beacon_data *old_beacon;
811 struct probe_resp *old_probe_resp;
812 struct cfg80211_chan_def chandef;
814 sdata_assert_lock(sdata);
816 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
819 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
821 /* abort any running channel switch */
822 mutex_lock(&local->mtx);
823 sdata->vif.csa_active = false;
824 if (sdata->csa_block_tx) {
825 ieee80211_wake_vif_queues(local, sdata,
826 IEEE80211_QUEUE_STOP_REASON_CSA);
827 sdata->csa_block_tx = false;
830 mutex_unlock(&local->mtx);
832 kfree(sdata->u.ap.next_beacon);
833 sdata->u.ap.next_beacon = NULL;
835 /* turn off carrier for this interface and dependent VLANs */
836 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
837 netif_carrier_off(vlan->dev);
838 netif_carrier_off(dev);
840 /* remove beacon and probe response */
841 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
842 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
843 kfree_rcu(old_beacon, rcu_head);
845 kfree_rcu(old_probe_resp, rcu_head);
846 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
848 __sta_info_flush(sdata, true);
849 ieee80211_free_keys(sdata, true);
851 sdata->vif.bss_conf.enable_beacon = false;
852 sdata->vif.bss_conf.ssid_len = 0;
853 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
854 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
856 if (sdata->wdev.cac_started) {
857 chandef = sdata->vif.bss_conf.chandef;
858 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
859 cfg80211_cac_event(sdata->dev, &chandef,
860 NL80211_RADAR_CAC_ABORTED,
864 drv_stop_ap(sdata->local, sdata);
866 /* free all potentially still buffered bcast frames */
867 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
868 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
870 mutex_lock(&local->mtx);
871 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
872 ieee80211_vif_release_channel(sdata);
873 mutex_unlock(&local->mtx);
878 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
879 struct iapp_layer2_update {
880 u8 da[ETH_ALEN]; /* broadcast */
881 u8 sa[ETH_ALEN]; /* STA addr */
889 static void ieee80211_send_layer2_update(struct sta_info *sta)
891 struct iapp_layer2_update *msg;
894 /* Send Level 2 Update Frame to update forwarding tables in layer 2
897 skb = dev_alloc_skb(sizeof(*msg));
900 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
902 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
903 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
905 eth_broadcast_addr(msg->da);
906 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
909 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
910 msg->control = 0xaf; /* XID response lsb.1111F101.
911 * F=0 (no poll command; unsolicited frame) */
912 msg->xid_info[0] = 0x81; /* XID format identifier */
913 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
914 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
916 skb->dev = sta->sdata->dev;
917 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
918 memset(skb->cb, 0, sizeof(skb->cb));
922 static int sta_apply_auth_flags(struct ieee80211_local *local,
923 struct sta_info *sta,
928 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
929 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
930 !test_sta_flag(sta, WLAN_STA_AUTH)) {
931 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
936 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
937 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
938 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
940 * When peer becomes associated, init rate control as
941 * well. Some drivers require rate control initialized
942 * before drv_sta_state() is called.
944 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
945 rate_control_rate_init(sta);
947 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
952 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
953 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
954 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
955 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
956 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
963 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
964 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
965 test_sta_flag(sta, WLAN_STA_ASSOC)) {
966 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
971 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
972 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
973 test_sta_flag(sta, WLAN_STA_AUTH)) {
974 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
982 static void sta_apply_mesh_params(struct ieee80211_local *local,
983 struct sta_info *sta,
984 struct station_parameters *params)
986 #ifdef CONFIG_MAC80211_MESH
987 struct ieee80211_sub_if_data *sdata = sta->sdata;
990 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
991 switch (params->plink_state) {
992 case NL80211_PLINK_ESTAB:
993 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
994 changed = mesh_plink_inc_estab_count(sdata);
995 sta->mesh->plink_state = params->plink_state;
997 ieee80211_mps_sta_status_update(sta);
998 changed |= ieee80211_mps_set_sta_local_pm(sta,
999 sdata->u.mesh.mshcfg.power_mode);
1001 case NL80211_PLINK_LISTEN:
1002 case NL80211_PLINK_BLOCKED:
1003 case NL80211_PLINK_OPN_SNT:
1004 case NL80211_PLINK_OPN_RCVD:
1005 case NL80211_PLINK_CNF_RCVD:
1006 case NL80211_PLINK_HOLDING:
1007 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1008 changed = mesh_plink_dec_estab_count(sdata);
1009 sta->mesh->plink_state = params->plink_state;
1011 ieee80211_mps_sta_status_update(sta);
1012 changed |= ieee80211_mps_set_sta_local_pm(sta,
1013 NL80211_MESH_POWER_UNKNOWN);
1021 switch (params->plink_action) {
1022 case NL80211_PLINK_ACTION_NO_ACTION:
1025 case NL80211_PLINK_ACTION_OPEN:
1026 changed |= mesh_plink_open(sta);
1028 case NL80211_PLINK_ACTION_BLOCK:
1029 changed |= mesh_plink_block(sta);
1033 if (params->local_pm)
1034 changed |= ieee80211_mps_set_sta_local_pm(sta,
1037 ieee80211_mbss_info_change_notify(sdata, changed);
1041 static int sta_apply_parameters(struct ieee80211_local *local,
1042 struct sta_info *sta,
1043 struct station_parameters *params)
1046 struct ieee80211_supported_band *sband;
1047 struct ieee80211_sub_if_data *sdata = sta->sdata;
1048 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1051 sband = local->hw.wiphy->bands[band];
1053 mask = params->sta_flags_mask;
1054 set = params->sta_flags_set;
1056 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1058 * In mesh mode, ASSOCIATED isn't part of the nl80211
1059 * API but must follow AUTHENTICATED for driver state.
1061 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1062 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1063 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1064 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1065 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1067 * TDLS -- everything follows authorized, but
1068 * only becoming authorized is possible, not
1071 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1072 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1073 BIT(NL80211_STA_FLAG_ASSOCIATED);
1074 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1075 BIT(NL80211_STA_FLAG_ASSOCIATED);
1079 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1080 local->hw.queues >= IEEE80211_NUM_ACS)
1081 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1083 /* auth flags will be set later for TDLS,
1084 * and for unassociated stations that move to assocaited */
1085 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1086 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1087 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1088 ret = sta_apply_auth_flags(local, sta, mask, set);
1093 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1094 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1095 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1097 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1100 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1101 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
1102 if (set & BIT(NL80211_STA_FLAG_MFP))
1103 set_sta_flag(sta, WLAN_STA_MFP);
1105 clear_sta_flag(sta, WLAN_STA_MFP);
1108 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1109 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1110 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1112 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1115 /* mark TDLS channel switch support, if the AP allows it */
1116 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1117 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1118 params->ext_capab_len >= 4 &&
1119 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1120 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1122 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1123 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1124 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1125 params->ext_capab_len >= 8 &&
1126 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1127 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1129 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1130 sta->sta.uapsd_queues = params->uapsd_queues;
1131 sta->sta.max_sp = params->max_sp;
1134 /* The sender might not have sent the last bit, consider it to be 0 */
1135 if (params->ext_capab_len >= 8) {
1136 u8 val = (params->ext_capab[7] &
1137 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1139 /* we did get all the bits, take the MSB as well */
1140 if (params->ext_capab_len >= 9) {
1141 u8 val_msb = params->ext_capab[8] &
1142 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1149 sta->sta.max_amsdu_subframes = 32;
1152 sta->sta.max_amsdu_subframes = 16;
1155 sta->sta.max_amsdu_subframes = 8;
1158 sta->sta.max_amsdu_subframes = 0;
1163 * cfg80211 validates this (1-2007) and allows setting the AID
1164 * only when creating a new station entry
1167 sta->sta.aid = params->aid;
1170 * Some of the following updates would be racy if called on an
1171 * existing station, via ieee80211_change_station(). However,
1172 * all such changes are rejected by cfg80211 except for updates
1173 * changing the supported rates on an existing but not yet used
1177 if (params->listen_interval >= 0)
1178 sta->listen_interval = params->listen_interval;
1180 if (params->supported_rates) {
1181 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1182 sband, params->supported_rates,
1183 params->supported_rates_len,
1184 &sta->sta.supp_rates[band]);
1187 if (params->ht_capa)
1188 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1189 params->ht_capa, sta);
1191 /* VHT can override some HT caps such as the A-MSDU max length */
1192 if (params->vht_capa)
1193 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1194 params->vht_capa, sta);
1196 if (params->opmode_notif_used) {
1197 /* returned value is only needed for rc update, but the
1198 * rc isn't initialized here yet, so ignore it
1200 __ieee80211_vht_handle_opmode(sdata, sta,
1201 params->opmode_notif, band);
1204 if (ieee80211_vif_is_mesh(&sdata->vif))
1205 sta_apply_mesh_params(local, sta, params);
1207 /* set the STA state after all sta info from usermode has been set */
1208 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1209 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1210 ret = sta_apply_auth_flags(local, sta, mask, set);
1218 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1220 struct station_parameters *params)
1222 struct ieee80211_local *local = wiphy_priv(wiphy);
1223 struct sta_info *sta;
1224 struct ieee80211_sub_if_data *sdata;
1229 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1231 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1232 sdata->vif.type != NL80211_IFTYPE_AP)
1235 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1237 if (ether_addr_equal(mac, sdata->vif.addr))
1240 if (is_multicast_ether_addr(mac))
1243 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1247 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1248 sta->sta.tdls = true;
1250 err = sta_apply_parameters(local, sta, params);
1252 sta_info_free(local, sta);
1257 * for TDLS and for unassociated station, rate control should be
1258 * initialized only when rates are known and station is marked
1259 * authorized/associated
1261 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1262 test_sta_flag(sta, WLAN_STA_ASSOC))
1263 rate_control_rate_init(sta);
1265 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1266 sdata->vif.type == NL80211_IFTYPE_AP;
1268 err = sta_info_insert_rcu(sta);
1275 ieee80211_send_layer2_update(sta);
1282 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1283 struct station_del_parameters *params)
1285 struct ieee80211_sub_if_data *sdata;
1287 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1290 return sta_info_destroy_addr_bss(sdata, params->mac);
1292 sta_info_flush(sdata);
1296 static int ieee80211_change_station(struct wiphy *wiphy,
1297 struct net_device *dev, const u8 *mac,
1298 struct station_parameters *params)
1300 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1301 struct ieee80211_local *local = wiphy_priv(wiphy);
1302 struct sta_info *sta;
1303 struct ieee80211_sub_if_data *vlansdata;
1304 enum cfg80211_station_type statype;
1307 mutex_lock(&local->sta_mtx);
1309 sta = sta_info_get_bss(sdata, mac);
1315 switch (sdata->vif.type) {
1316 case NL80211_IFTYPE_MESH_POINT:
1317 if (sdata->u.mesh.user_mpm)
1318 statype = CFG80211_STA_MESH_PEER_USER;
1320 statype = CFG80211_STA_MESH_PEER_KERNEL;
1322 case NL80211_IFTYPE_ADHOC:
1323 statype = CFG80211_STA_IBSS;
1325 case NL80211_IFTYPE_STATION:
1326 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1327 statype = CFG80211_STA_AP_STA;
1330 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1331 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1333 statype = CFG80211_STA_TDLS_PEER_SETUP;
1335 case NL80211_IFTYPE_AP:
1336 case NL80211_IFTYPE_AP_VLAN:
1337 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1338 statype = CFG80211_STA_AP_CLIENT;
1340 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1347 err = cfg80211_check_station_change(wiphy, params, statype);
1351 if (params->vlan && params->vlan != sta->sdata->dev) {
1352 bool prev_4addr = false;
1353 bool new_4addr = false;
1355 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1357 if (params->vlan->ieee80211_ptr->use_4addr) {
1358 if (vlansdata->u.vlan.sta) {
1363 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1367 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1368 sta->sdata->u.vlan.sta) {
1369 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1373 sta->sdata = vlansdata;
1374 ieee80211_check_fast_xmit(sta);
1376 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1377 prev_4addr != new_4addr) {
1379 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1381 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1384 ieee80211_send_layer2_update(sta);
1387 err = sta_apply_parameters(local, sta, params);
1391 mutex_unlock(&local->sta_mtx);
1393 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1394 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1395 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1396 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1397 sta_info_tx_streams(sta) != 1) {
1399 "%pM just authorized and MIMO capable - update SMPS\n",
1401 ieee80211_send_smps_action(sta->sdata,
1402 sta->sdata->bss->req_smps,
1404 sta->sdata->vif.bss_conf.bssid);
1407 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1408 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1409 ieee80211_recalc_ps(local);
1410 ieee80211_recalc_ps_vif(sdata);
1415 mutex_unlock(&local->sta_mtx);
1419 #ifdef CONFIG_MAC80211_MESH
1420 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1421 const u8 *dst, const u8 *next_hop)
1423 struct ieee80211_sub_if_data *sdata;
1424 struct mesh_path *mpath;
1425 struct sta_info *sta;
1427 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1430 sta = sta_info_get(sdata, next_hop);
1436 mpath = mesh_path_add(sdata, dst);
1437 if (IS_ERR(mpath)) {
1439 return PTR_ERR(mpath);
1442 mesh_path_fix_nexthop(mpath, sta);
1448 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1454 return mesh_path_del(sdata, dst);
1456 mesh_path_flush_by_iface(sdata);
1460 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1461 const u8 *dst, const u8 *next_hop)
1463 struct ieee80211_sub_if_data *sdata;
1464 struct mesh_path *mpath;
1465 struct sta_info *sta;
1467 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1471 sta = sta_info_get(sdata, next_hop);
1477 mpath = mesh_path_lookup(sdata, dst);
1483 mesh_path_fix_nexthop(mpath, sta);
1489 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1490 struct mpath_info *pinfo)
1492 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1495 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1497 eth_zero_addr(next_hop);
1499 memset(pinfo, 0, sizeof(*pinfo));
1501 pinfo->generation = mesh_paths_generation;
1503 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1506 MPATH_INFO_EXPTIME |
1507 MPATH_INFO_DISCOVERY_TIMEOUT |
1508 MPATH_INFO_DISCOVERY_RETRIES |
1511 pinfo->frame_qlen = mpath->frame_queue.qlen;
1512 pinfo->sn = mpath->sn;
1513 pinfo->metric = mpath->metric;
1514 if (time_before(jiffies, mpath->exp_time))
1515 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1516 pinfo->discovery_timeout =
1517 jiffies_to_msecs(mpath->discovery_timeout);
1518 pinfo->discovery_retries = mpath->discovery_retries;
1519 if (mpath->flags & MESH_PATH_ACTIVE)
1520 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1521 if (mpath->flags & MESH_PATH_RESOLVING)
1522 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1523 if (mpath->flags & MESH_PATH_SN_VALID)
1524 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1525 if (mpath->flags & MESH_PATH_FIXED)
1526 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1527 if (mpath->flags & MESH_PATH_RESOLVED)
1528 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1531 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1532 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1535 struct ieee80211_sub_if_data *sdata;
1536 struct mesh_path *mpath;
1538 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1541 mpath = mesh_path_lookup(sdata, dst);
1546 memcpy(dst, mpath->dst, ETH_ALEN);
1547 mpath_set_pinfo(mpath, next_hop, pinfo);
1552 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1553 int idx, u8 *dst, u8 *next_hop,
1554 struct mpath_info *pinfo)
1556 struct ieee80211_sub_if_data *sdata;
1557 struct mesh_path *mpath;
1559 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1562 mpath = mesh_path_lookup_by_idx(sdata, idx);
1567 memcpy(dst, mpath->dst, ETH_ALEN);
1568 mpath_set_pinfo(mpath, next_hop, pinfo);
1573 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1574 struct mpath_info *pinfo)
1576 memset(pinfo, 0, sizeof(*pinfo));
1577 memcpy(mpp, mpath->mpp, ETH_ALEN);
1579 pinfo->generation = mpp_paths_generation;
1582 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1583 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1586 struct ieee80211_sub_if_data *sdata;
1587 struct mesh_path *mpath;
1589 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1592 mpath = mpp_path_lookup(sdata, dst);
1597 memcpy(dst, mpath->dst, ETH_ALEN);
1598 mpp_set_pinfo(mpath, mpp, pinfo);
1603 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1604 int idx, u8 *dst, u8 *mpp,
1605 struct mpath_info *pinfo)
1607 struct ieee80211_sub_if_data *sdata;
1608 struct mesh_path *mpath;
1610 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1613 mpath = mpp_path_lookup_by_idx(sdata, idx);
1618 memcpy(dst, mpath->dst, ETH_ALEN);
1619 mpp_set_pinfo(mpath, mpp, pinfo);
1624 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1625 struct net_device *dev,
1626 struct mesh_config *conf)
1628 struct ieee80211_sub_if_data *sdata;
1629 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1631 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1635 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1637 return (mask >> (parm-1)) & 0x1;
1640 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1641 const struct mesh_setup *setup)
1645 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1646 struct ieee80211_sub_if_data, u.mesh);
1648 /* allocate information elements */
1652 if (setup->ie_len) {
1653 new_ie = kmemdup(setup->ie, setup->ie_len,
1658 ifmsh->ie_len = setup->ie_len;
1662 /* now copy the rest of the setup parameters */
1663 ifmsh->mesh_id_len = setup->mesh_id_len;
1664 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1665 ifmsh->mesh_sp_id = setup->sync_method;
1666 ifmsh->mesh_pp_id = setup->path_sel_proto;
1667 ifmsh->mesh_pm_id = setup->path_metric;
1668 ifmsh->user_mpm = setup->user_mpm;
1669 ifmsh->mesh_auth_id = setup->auth_id;
1670 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1671 if (setup->is_authenticated)
1672 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1673 if (setup->is_secure)
1674 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1676 /* mcast rate setting in Mesh Node */
1677 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1678 sizeof(setup->mcast_rate));
1679 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1681 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1682 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1687 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1688 struct net_device *dev, u32 mask,
1689 const struct mesh_config *nconf)
1691 struct mesh_config *conf;
1692 struct ieee80211_sub_if_data *sdata;
1693 struct ieee80211_if_mesh *ifmsh;
1695 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1696 ifmsh = &sdata->u.mesh;
1698 /* Set the config options which we are interested in setting */
1699 conf = &(sdata->u.mesh.mshcfg);
1700 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1701 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1702 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1703 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1704 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1705 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1706 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1707 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1708 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1709 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1710 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1711 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1712 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1713 conf->element_ttl = nconf->element_ttl;
1714 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1715 if (ifmsh->user_mpm)
1717 conf->auto_open_plinks = nconf->auto_open_plinks;
1719 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1720 conf->dot11MeshNbrOffsetMaxNeighbor =
1721 nconf->dot11MeshNbrOffsetMaxNeighbor;
1722 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1723 conf->dot11MeshHWMPmaxPREQretries =
1724 nconf->dot11MeshHWMPmaxPREQretries;
1725 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1726 conf->path_refresh_time = nconf->path_refresh_time;
1727 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1728 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1729 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1730 conf->dot11MeshHWMPactivePathTimeout =
1731 nconf->dot11MeshHWMPactivePathTimeout;
1732 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1733 conf->dot11MeshHWMPpreqMinInterval =
1734 nconf->dot11MeshHWMPpreqMinInterval;
1735 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1736 conf->dot11MeshHWMPperrMinInterval =
1737 nconf->dot11MeshHWMPperrMinInterval;
1738 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1740 conf->dot11MeshHWMPnetDiameterTraversalTime =
1741 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1742 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1743 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1744 ieee80211_mesh_root_setup(ifmsh);
1746 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1747 /* our current gate announcement implementation rides on root
1748 * announcements, so require this ifmsh to also be a root node
1750 if (nconf->dot11MeshGateAnnouncementProtocol &&
1751 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1752 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1753 ieee80211_mesh_root_setup(ifmsh);
1755 conf->dot11MeshGateAnnouncementProtocol =
1756 nconf->dot11MeshGateAnnouncementProtocol;
1758 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1759 conf->dot11MeshHWMPRannInterval =
1760 nconf->dot11MeshHWMPRannInterval;
1761 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1762 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1763 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1764 /* our RSSI threshold implementation is supported only for
1765 * devices that report signal in dBm.
1767 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
1769 conf->rssi_threshold = nconf->rssi_threshold;
1771 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1772 conf->ht_opmode = nconf->ht_opmode;
1773 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1774 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1776 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1777 conf->dot11MeshHWMPactivePathToRootTimeout =
1778 nconf->dot11MeshHWMPactivePathToRootTimeout;
1779 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1780 conf->dot11MeshHWMProotInterval =
1781 nconf->dot11MeshHWMProotInterval;
1782 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1783 conf->dot11MeshHWMPconfirmationInterval =
1784 nconf->dot11MeshHWMPconfirmationInterval;
1785 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1786 conf->power_mode = nconf->power_mode;
1787 ieee80211_mps_local_status_update(sdata);
1789 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1790 conf->dot11MeshAwakeWindowDuration =
1791 nconf->dot11MeshAwakeWindowDuration;
1792 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1793 conf->plink_timeout = nconf->plink_timeout;
1794 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1798 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1799 const struct mesh_config *conf,
1800 const struct mesh_setup *setup)
1802 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1803 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1806 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1807 err = copy_mesh_setup(ifmsh, setup);
1811 /* can mesh use other SMPS modes? */
1812 sdata->smps_mode = IEEE80211_SMPS_OFF;
1813 sdata->needed_rx_chains = sdata->local->rx_chains;
1815 mutex_lock(&sdata->local->mtx);
1816 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1817 IEEE80211_CHANCTX_SHARED);
1818 mutex_unlock(&sdata->local->mtx);
1822 return ieee80211_start_mesh(sdata);
1825 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1827 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1829 ieee80211_stop_mesh(sdata);
1830 mutex_lock(&sdata->local->mtx);
1831 ieee80211_vif_release_channel(sdata);
1832 mutex_unlock(&sdata->local->mtx);
1838 static int ieee80211_change_bss(struct wiphy *wiphy,
1839 struct net_device *dev,
1840 struct bss_parameters *params)
1842 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1843 enum ieee80211_band band;
1846 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1849 band = ieee80211_get_sdata_band(sdata);
1851 if (params->use_cts_prot >= 0) {
1852 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1853 changed |= BSS_CHANGED_ERP_CTS_PROT;
1855 if (params->use_short_preamble >= 0) {
1856 sdata->vif.bss_conf.use_short_preamble =
1857 params->use_short_preamble;
1858 changed |= BSS_CHANGED_ERP_PREAMBLE;
1861 if (!sdata->vif.bss_conf.use_short_slot &&
1862 band == IEEE80211_BAND_5GHZ) {
1863 sdata->vif.bss_conf.use_short_slot = true;
1864 changed |= BSS_CHANGED_ERP_SLOT;
1867 if (params->use_short_slot_time >= 0) {
1868 sdata->vif.bss_conf.use_short_slot =
1869 params->use_short_slot_time;
1870 changed |= BSS_CHANGED_ERP_SLOT;
1873 if (params->basic_rates) {
1874 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1876 params->basic_rates,
1877 params->basic_rates_len,
1878 &sdata->vif.bss_conf.basic_rates);
1879 changed |= BSS_CHANGED_BASIC_RATES;
1882 if (params->ap_isolate >= 0) {
1883 if (params->ap_isolate)
1884 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1886 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1889 if (params->ht_opmode >= 0) {
1890 sdata->vif.bss_conf.ht_operation_mode =
1891 (u16) params->ht_opmode;
1892 changed |= BSS_CHANGED_HT;
1895 if (params->p2p_ctwindow >= 0) {
1896 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1897 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1898 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1899 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1900 changed |= BSS_CHANGED_P2P_PS;
1903 if (params->p2p_opp_ps > 0) {
1904 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1905 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1906 changed |= BSS_CHANGED_P2P_PS;
1907 } else if (params->p2p_opp_ps == 0) {
1908 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1909 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
1910 changed |= BSS_CHANGED_P2P_PS;
1913 ieee80211_bss_info_change_notify(sdata, changed);
1918 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1919 struct net_device *dev,
1920 struct ieee80211_txq_params *params)
1922 struct ieee80211_local *local = wiphy_priv(wiphy);
1923 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1924 struct ieee80211_tx_queue_params p;
1926 if (!local->ops->conf_tx)
1929 if (local->hw.queues < IEEE80211_NUM_ACS)
1932 memset(&p, 0, sizeof(p));
1933 p.aifs = params->aifs;
1934 p.cw_max = params->cwmax;
1935 p.cw_min = params->cwmin;
1936 p.txop = params->txop;
1939 * Setting tx queue params disables u-apsd because it's only
1940 * called in master mode.
1944 sdata->tx_conf[params->ac] = p;
1945 if (drv_conf_tx(local, sdata, params->ac, &p)) {
1946 wiphy_debug(local->hw.wiphy,
1947 "failed to set TX queue parameters for AC %d\n",
1952 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1958 static int ieee80211_suspend(struct wiphy *wiphy,
1959 struct cfg80211_wowlan *wowlan)
1961 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1964 static int ieee80211_resume(struct wiphy *wiphy)
1966 return __ieee80211_resume(wiphy_priv(wiphy));
1969 #define ieee80211_suspend NULL
1970 #define ieee80211_resume NULL
1973 static int ieee80211_scan(struct wiphy *wiphy,
1974 struct cfg80211_scan_request *req)
1976 struct ieee80211_sub_if_data *sdata;
1978 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
1980 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1981 case NL80211_IFTYPE_STATION:
1982 case NL80211_IFTYPE_ADHOC:
1983 case NL80211_IFTYPE_MESH_POINT:
1984 case NL80211_IFTYPE_P2P_CLIENT:
1985 case NL80211_IFTYPE_P2P_DEVICE:
1987 case NL80211_IFTYPE_P2P_GO:
1988 if (sdata->local->ops->hw_scan)
1991 * FIXME: implement NoA while scanning in software,
1992 * for now fall through to allow scanning only when
1993 * beaconing hasn't been configured yet
1995 case NL80211_IFTYPE_AP:
1997 * If the scan has been forced (and the driver supports
1998 * forcing), don't care about being beaconing already.
1999 * This will create problems to the attached stations (e.g. all
2000 * the frames sent while scanning on other channel will be
2003 if (sdata->u.ap.beacon &&
2004 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2005 !(req->flags & NL80211_SCAN_FLAG_AP)))
2012 return ieee80211_request_scan(sdata, req);
2015 static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2017 ieee80211_scan_cancel(wiphy_priv(wiphy));
2021 ieee80211_sched_scan_start(struct wiphy *wiphy,
2022 struct net_device *dev,
2023 struct cfg80211_sched_scan_request *req)
2025 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2027 if (!sdata->local->ops->sched_scan_start)
2030 return ieee80211_request_sched_scan_start(sdata, req);
2034 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2036 struct ieee80211_local *local = wiphy_priv(wiphy);
2038 if (!local->ops->sched_scan_stop)
2041 return ieee80211_request_sched_scan_stop(local);
2044 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2045 struct cfg80211_auth_request *req)
2047 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2050 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2051 struct cfg80211_assoc_request *req)
2053 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2056 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2057 struct cfg80211_deauth_request *req)
2059 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2062 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2063 struct cfg80211_disassoc_request *req)
2065 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2068 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2069 struct cfg80211_ibss_params *params)
2071 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2074 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2076 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2079 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2080 struct ocb_setup *setup)
2082 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2085 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2087 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2090 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2091 int rate[IEEE80211_NUM_BANDS])
2093 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2095 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2096 sizeof(int) * IEEE80211_NUM_BANDS);
2101 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2103 struct ieee80211_local *local = wiphy_priv(wiphy);
2106 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2107 ieee80211_check_fast_xmit_all(local);
2109 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2112 ieee80211_check_fast_xmit_all(local);
2117 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2118 (changed & WIPHY_PARAM_DYN_ACK)) {
2121 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2122 wiphy->coverage_class : -1;
2123 err = drv_set_coverage_class(local, coverage_class);
2129 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2130 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2136 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2137 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2139 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2141 if (changed & WIPHY_PARAM_RETRY_LONG) {
2142 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2144 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2147 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2148 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2153 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2154 struct wireless_dev *wdev,
2155 enum nl80211_tx_power_setting type, int mbm)
2157 struct ieee80211_local *local = wiphy_priv(wiphy);
2158 struct ieee80211_sub_if_data *sdata;
2159 enum nl80211_tx_power_setting txp_type = type;
2160 bool update_txp_type = false;
2163 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2166 case NL80211_TX_POWER_AUTOMATIC:
2167 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2168 txp_type = NL80211_TX_POWER_LIMITED;
2170 case NL80211_TX_POWER_LIMITED:
2171 case NL80211_TX_POWER_FIXED:
2172 if (mbm < 0 || (mbm % 100))
2174 sdata->user_power_level = MBM_TO_DBM(mbm);
2178 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2179 update_txp_type = true;
2180 sdata->vif.bss_conf.txpower_type = txp_type;
2183 ieee80211_recalc_txpower(sdata, update_txp_type);
2189 case NL80211_TX_POWER_AUTOMATIC:
2190 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2191 txp_type = NL80211_TX_POWER_LIMITED;
2193 case NL80211_TX_POWER_LIMITED:
2194 case NL80211_TX_POWER_FIXED:
2195 if (mbm < 0 || (mbm % 100))
2197 local->user_power_level = MBM_TO_DBM(mbm);
2201 mutex_lock(&local->iflist_mtx);
2202 list_for_each_entry(sdata, &local->interfaces, list) {
2203 sdata->user_power_level = local->user_power_level;
2204 if (txp_type != sdata->vif.bss_conf.txpower_type)
2205 update_txp_type = true;
2206 sdata->vif.bss_conf.txpower_type = txp_type;
2208 list_for_each_entry(sdata, &local->interfaces, list)
2209 ieee80211_recalc_txpower(sdata, update_txp_type);
2210 mutex_unlock(&local->iflist_mtx);
2215 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2216 struct wireless_dev *wdev,
2219 struct ieee80211_local *local = wiphy_priv(wiphy);
2220 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2222 if (local->ops->get_txpower)
2223 return drv_get_txpower(local, sdata, dbm);
2225 if (!local->use_chanctx)
2226 *dbm = local->hw.conf.power_level;
2228 *dbm = sdata->vif.bss_conf.txpower;
2233 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2236 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2238 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2243 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2245 struct ieee80211_local *local = wiphy_priv(wiphy);
2247 drv_rfkill_poll(local);
2250 #ifdef CONFIG_NL80211_TESTMODE
2251 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2252 struct wireless_dev *wdev,
2253 void *data, int len)
2255 struct ieee80211_local *local = wiphy_priv(wiphy);
2256 struct ieee80211_vif *vif = NULL;
2258 if (!local->ops->testmode_cmd)
2262 struct ieee80211_sub_if_data *sdata;
2264 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2265 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2269 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2272 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2273 struct sk_buff *skb,
2274 struct netlink_callback *cb,
2275 void *data, int len)
2277 struct ieee80211_local *local = wiphy_priv(wiphy);
2279 if (!local->ops->testmode_dump)
2282 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2286 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2287 enum ieee80211_smps_mode smps_mode)
2289 struct sta_info *sta;
2290 enum ieee80211_smps_mode old_req;
2292 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2295 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2298 old_req = sdata->u.ap.req_smps;
2299 sdata->u.ap.req_smps = smps_mode;
2301 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2302 if (old_req == smps_mode ||
2303 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2306 /* If no associated stations, there's no need to do anything */
2307 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2308 sdata->smps_mode = smps_mode;
2309 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2314 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2315 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2317 mutex_lock(&sdata->local->sta_mtx);
2318 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2320 * Only stations associated to our AP and
2323 if (sta->sdata->bss != &sdata->u.ap)
2326 /* This station doesn't support MIMO - skip it */
2327 if (sta_info_tx_streams(sta) == 1)
2331 * Don't wake up a STA just to send the action frame
2332 * unless we are getting more restrictive.
2334 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2335 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2337 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2343 * If the STA is not authorized, wait until it gets
2344 * authorized and the action frame will be sent then.
2346 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2349 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2350 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2351 sdata->vif.bss_conf.bssid);
2353 mutex_unlock(&sdata->local->sta_mtx);
2355 sdata->smps_mode = smps_mode;
2356 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2361 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2362 enum ieee80211_smps_mode smps_mode)
2365 enum ieee80211_smps_mode old_req;
2367 struct sta_info *sta;
2368 bool tdls_peer_found = false;
2370 lockdep_assert_held(&sdata->wdev.mtx);
2372 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2375 old_req = sdata->u.mgd.req_smps;
2376 sdata->u.mgd.req_smps = smps_mode;
2378 if (old_req == smps_mode &&
2379 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2383 * If not associated, or current association is not an HT
2384 * association, there's no need to do anything, just store
2385 * the new value until we associate.
2387 if (!sdata->u.mgd.associated ||
2388 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2391 ap = sdata->u.mgd.associated->bssid;
2394 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2395 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2396 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2399 tdls_peer_found = true;
2404 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2405 if (tdls_peer_found || !sdata->u.mgd.powersave)
2406 smps_mode = IEEE80211_SMPS_OFF;
2408 smps_mode = IEEE80211_SMPS_DYNAMIC;
2411 /* send SM PS frame to AP */
2412 err = ieee80211_send_smps_action(sdata, smps_mode,
2415 sdata->u.mgd.req_smps = old_req;
2416 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2417 ieee80211_teardown_tdls_peers(sdata);
2422 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2423 bool enabled, int timeout)
2425 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2426 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2428 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2431 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2434 if (enabled == sdata->u.mgd.powersave &&
2435 timeout == local->dynamic_ps_forced_timeout)
2438 sdata->u.mgd.powersave = enabled;
2439 local->dynamic_ps_forced_timeout = timeout;
2441 /* no change, but if automatic follow powersave */
2443 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2444 sdata_unlock(sdata);
2446 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2447 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2449 ieee80211_recalc_ps(local);
2450 ieee80211_recalc_ps_vif(sdata);
2455 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2456 struct net_device *dev,
2457 s32 rssi_thold, u32 rssi_hyst)
2459 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2460 struct ieee80211_vif *vif = &sdata->vif;
2461 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2463 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2464 rssi_hyst == bss_conf->cqm_rssi_hyst)
2467 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2468 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2471 bss_conf->cqm_rssi_thold = rssi_thold;
2472 bss_conf->cqm_rssi_hyst = rssi_hyst;
2473 sdata->u.mgd.last_cqm_event_signal = 0;
2475 /* tell the driver upon association, unless already associated */
2476 if (sdata->u.mgd.associated &&
2477 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2478 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2483 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2484 struct net_device *dev,
2486 const struct cfg80211_bitrate_mask *mask)
2488 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2489 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2492 if (!ieee80211_sdata_running(sdata))
2495 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2496 ret = drv_set_bitrate_mask(local, sdata, mask);
2501 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2502 struct ieee80211_supported_band *sband = wiphy->bands[i];
2505 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2506 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2507 sizeof(mask->control[i].ht_mcs));
2508 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2509 mask->control[i].vht_mcs,
2510 sizeof(mask->control[i].vht_mcs));
2512 sdata->rc_has_mcs_mask[i] = false;
2513 sdata->rc_has_vht_mcs_mask[i] = false;
2517 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2518 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2519 sdata->rc_has_mcs_mask[i] = true;
2524 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2525 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
2526 sdata->rc_has_vht_mcs_mask[i] = true;
2535 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2536 struct net_device *dev,
2537 struct cfg80211_chan_def *chandef,
2540 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2541 struct ieee80211_local *local = sdata->local;
2544 mutex_lock(&local->mtx);
2545 if (!list_empty(&local->roc_list) || local->scanning) {
2550 /* whatever, but channel contexts should not complain about that one */
2551 sdata->smps_mode = IEEE80211_SMPS_OFF;
2552 sdata->needed_rx_chains = local->rx_chains;
2554 err = ieee80211_vif_use_channel(sdata, chandef,
2555 IEEE80211_CHANCTX_SHARED);
2559 ieee80211_queue_delayed_work(&sdata->local->hw,
2560 &sdata->dfs_cac_timer_work,
2561 msecs_to_jiffies(cac_time_ms));
2564 mutex_unlock(&local->mtx);
2568 static struct cfg80211_beacon_data *
2569 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2571 struct cfg80211_beacon_data *new_beacon;
2575 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2576 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2577 beacon->probe_resp_len;
2579 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2583 pos = (u8 *)(new_beacon + 1);
2584 if (beacon->head_len) {
2585 new_beacon->head_len = beacon->head_len;
2586 new_beacon->head = pos;
2587 memcpy(pos, beacon->head, beacon->head_len);
2588 pos += beacon->head_len;
2590 if (beacon->tail_len) {
2591 new_beacon->tail_len = beacon->tail_len;
2592 new_beacon->tail = pos;
2593 memcpy(pos, beacon->tail, beacon->tail_len);
2594 pos += beacon->tail_len;
2596 if (beacon->beacon_ies_len) {
2597 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2598 new_beacon->beacon_ies = pos;
2599 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2600 pos += beacon->beacon_ies_len;
2602 if (beacon->proberesp_ies_len) {
2603 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2604 new_beacon->proberesp_ies = pos;
2605 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2606 pos += beacon->proberesp_ies_len;
2608 if (beacon->assocresp_ies_len) {
2609 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2610 new_beacon->assocresp_ies = pos;
2611 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2612 pos += beacon->assocresp_ies_len;
2614 if (beacon->probe_resp_len) {
2615 new_beacon->probe_resp_len = beacon->probe_resp_len;
2616 beacon->probe_resp = pos;
2617 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2618 pos += beacon->probe_resp_len;
2624 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2626 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2628 ieee80211_queue_work(&sdata->local->hw,
2629 &sdata->csa_finalize_work);
2631 EXPORT_SYMBOL(ieee80211_csa_finish);
2633 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2638 switch (sdata->vif.type) {
2639 case NL80211_IFTYPE_AP:
2640 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2642 kfree(sdata->u.ap.next_beacon);
2643 sdata->u.ap.next_beacon = NULL;
2649 case NL80211_IFTYPE_ADHOC:
2650 err = ieee80211_ibss_finish_csa(sdata);
2655 #ifdef CONFIG_MAC80211_MESH
2656 case NL80211_IFTYPE_MESH_POINT:
2657 err = ieee80211_mesh_finish_csa(sdata);
2671 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2673 struct ieee80211_local *local = sdata->local;
2677 sdata_assert_lock(sdata);
2678 lockdep_assert_held(&local->mtx);
2679 lockdep_assert_held(&local->chanctx_mtx);
2682 * using reservation isn't immediate as it may be deferred until later
2683 * with multi-vif. once reservation is complete it will re-schedule the
2684 * work with no reserved_chanctx so verify chandef to check if it
2685 * completed successfully
2688 if (sdata->reserved_chanctx) {
2690 * with multi-vif csa driver may call ieee80211_csa_finish()
2691 * many times while waiting for other interfaces to use their
2694 if (sdata->reserved_ready)
2697 return ieee80211_vif_use_reserved_context(sdata);
2700 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2701 &sdata->csa_chandef))
2704 sdata->vif.csa_active = false;
2706 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2710 ieee80211_bss_info_change_notify(sdata, changed);
2712 if (sdata->csa_block_tx) {
2713 ieee80211_wake_vif_queues(local, sdata,
2714 IEEE80211_QUEUE_STOP_REASON_CSA);
2715 sdata->csa_block_tx = false;
2718 err = drv_post_channel_switch(sdata);
2722 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2727 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2729 if (__ieee80211_csa_finalize(sdata)) {
2730 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2731 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2736 void ieee80211_csa_finalize_work(struct work_struct *work)
2738 struct ieee80211_sub_if_data *sdata =
2739 container_of(work, struct ieee80211_sub_if_data,
2741 struct ieee80211_local *local = sdata->local;
2744 mutex_lock(&local->mtx);
2745 mutex_lock(&local->chanctx_mtx);
2747 /* AP might have been stopped while waiting for the lock. */
2748 if (!sdata->vif.csa_active)
2751 if (!ieee80211_sdata_running(sdata))
2754 ieee80211_csa_finalize(sdata);
2757 mutex_unlock(&local->chanctx_mtx);
2758 mutex_unlock(&local->mtx);
2759 sdata_unlock(sdata);
2762 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2763 struct cfg80211_csa_settings *params,
2766 struct ieee80211_csa_settings csa = {};
2769 switch (sdata->vif.type) {
2770 case NL80211_IFTYPE_AP:
2771 sdata->u.ap.next_beacon =
2772 cfg80211_beacon_dup(¶ms->beacon_after);
2773 if (!sdata->u.ap.next_beacon)
2777 * With a count of 0, we don't have to wait for any
2778 * TBTT before switching, so complete the CSA
2779 * immediately. In theory, with a count == 1 we
2780 * should delay the switch until just before the next
2781 * TBTT, but that would complicate things so we switch
2782 * immediately too. If we would delay the switch
2783 * until the next TBTT, we would have to set the probe
2786 * TODO: A channel switch with count <= 1 without
2787 * sending a CSA action frame is kind of useless,
2788 * because the clients won't know we're changing
2789 * channels. The action frame must be implemented
2790 * either here or in the userspace.
2792 if (params->count <= 1)
2795 if ((params->n_counter_offsets_beacon >
2796 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2797 (params->n_counter_offsets_presp >
2798 IEEE80211_MAX_CSA_COUNTERS_NUM))
2801 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2802 csa.counter_offsets_presp = params->counter_offsets_presp;
2803 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2804 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2805 csa.count = params->count;
2807 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa);
2809 kfree(sdata->u.ap.next_beacon);
2815 case NL80211_IFTYPE_ADHOC:
2816 if (!sdata->vif.bss_conf.ibss_joined)
2819 if (params->chandef.width != sdata->u.ibss.chandef.width)
2822 switch (params->chandef.width) {
2823 case NL80211_CHAN_WIDTH_40:
2824 if (cfg80211_get_chandef_type(¶ms->chandef) !=
2825 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2827 case NL80211_CHAN_WIDTH_5:
2828 case NL80211_CHAN_WIDTH_10:
2829 case NL80211_CHAN_WIDTH_20_NOHT:
2830 case NL80211_CHAN_WIDTH_20:
2836 /* changes into another band are not supported */
2837 if (sdata->u.ibss.chandef.chan->band !=
2838 params->chandef.chan->band)
2841 /* see comments in the NL80211_IFTYPE_AP block */
2842 if (params->count > 1) {
2843 err = ieee80211_ibss_csa_beacon(sdata, params);
2849 ieee80211_send_action_csa(sdata, params);
2852 #ifdef CONFIG_MAC80211_MESH
2853 case NL80211_IFTYPE_MESH_POINT: {
2854 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2856 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
2859 /* changes into another band are not supported */
2860 if (sdata->vif.bss_conf.chandef.chan->band !=
2861 params->chandef.chan->band)
2864 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
2865 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
2866 if (!ifmsh->pre_value)
2867 ifmsh->pre_value = 1;
2872 /* see comments in the NL80211_IFTYPE_AP block */
2873 if (params->count > 1) {
2874 err = ieee80211_mesh_csa_beacon(sdata, params);
2876 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
2882 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
2883 ieee80211_send_action_csa(sdata, params);
2896 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2897 struct cfg80211_csa_settings *params)
2899 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2900 struct ieee80211_local *local = sdata->local;
2901 struct ieee80211_channel_switch ch_switch;
2902 struct ieee80211_chanctx_conf *conf;
2903 struct ieee80211_chanctx *chanctx;
2907 sdata_assert_lock(sdata);
2908 lockdep_assert_held(&local->mtx);
2910 if (!list_empty(&local->roc_list) || local->scanning)
2913 if (sdata->wdev.cac_started)
2916 if (cfg80211_chandef_identical(¶ms->chandef,
2917 &sdata->vif.bss_conf.chandef))
2920 /* don't allow another channel switch if one is already active. */
2921 if (sdata->vif.csa_active)
2924 mutex_lock(&local->chanctx_mtx);
2925 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
2926 lockdep_is_held(&local->chanctx_mtx));
2932 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
2938 ch_switch.timestamp = 0;
2939 ch_switch.device_timestamp = 0;
2940 ch_switch.block_tx = params->block_tx;
2941 ch_switch.chandef = params->chandef;
2942 ch_switch.count = params->count;
2944 err = drv_pre_channel_switch(sdata, &ch_switch);
2948 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef,
2950 params->radar_required);
2954 /* if reservation is invalid then this will fail */
2955 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
2957 ieee80211_vif_unreserve_chanctx(sdata);
2961 err = ieee80211_set_csa_beacon(sdata, params, &changed);
2963 ieee80211_vif_unreserve_chanctx(sdata);
2967 sdata->csa_chandef = params->chandef;
2968 sdata->csa_block_tx = params->block_tx;
2969 sdata->vif.csa_active = true;
2971 if (sdata->csa_block_tx)
2972 ieee80211_stop_vif_queues(local, sdata,
2973 IEEE80211_QUEUE_STOP_REASON_CSA);
2975 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
2979 ieee80211_bss_info_change_notify(sdata, changed);
2980 drv_channel_switch_beacon(sdata, ¶ms->chandef);
2982 /* if the beacon didn't change, we can finalize immediately */
2983 ieee80211_csa_finalize(sdata);
2987 mutex_unlock(&local->chanctx_mtx);
2991 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2992 struct cfg80211_csa_settings *params)
2994 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2995 struct ieee80211_local *local = sdata->local;
2998 mutex_lock(&local->mtx);
2999 err = __ieee80211_channel_switch(wiphy, dev, params);
3000 mutex_unlock(&local->mtx);
3005 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3007 lockdep_assert_held(&local->mtx);
3009 local->roc_cookie_counter++;
3011 /* wow, you wrapped 64 bits ... more likely a bug */
3012 if (WARN_ON(local->roc_cookie_counter == 0))
3013 local->roc_cookie_counter++;
3015 return local->roc_cookie_counter;
3018 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3019 u64 *cookie, gfp_t gfp)
3021 unsigned long spin_flags;
3022 struct sk_buff *ack_skb;
3025 ack_skb = skb_copy(skb, gfp);
3029 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3030 id = idr_alloc(&local->ack_status_frames, ack_skb,
3031 1, 0x10000, GFP_ATOMIC);
3032 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3039 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3041 *cookie = ieee80211_mgmt_tx_cookie(local);
3042 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3047 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3048 struct wireless_dev *wdev,
3049 u16 frame_type, bool reg)
3051 struct ieee80211_local *local = wiphy_priv(wiphy);
3052 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3054 switch (frame_type) {
3055 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3057 local->probe_req_reg++;
3058 sdata->vif.probe_req_reg++;
3060 if (local->probe_req_reg)
3061 local->probe_req_reg--;
3063 if (sdata->vif.probe_req_reg)
3064 sdata->vif.probe_req_reg--;
3067 if (!local->open_count)
3070 if (sdata->vif.probe_req_reg == 1)
3071 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3073 else if (sdata->vif.probe_req_reg == 0)
3074 drv_config_iface_filter(local, sdata, 0,
3077 ieee80211_configure_filter(local);
3084 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3086 struct ieee80211_local *local = wiphy_priv(wiphy);
3091 return drv_set_antenna(local, tx_ant, rx_ant);
3094 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3096 struct ieee80211_local *local = wiphy_priv(wiphy);
3098 return drv_get_antenna(local, tx_ant, rx_ant);
3101 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3102 struct net_device *dev,
3103 struct cfg80211_gtk_rekey_data *data)
3105 struct ieee80211_local *local = wiphy_priv(wiphy);
3106 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3108 if (!local->ops->set_rekey_data)
3111 drv_set_rekey_data(local, sdata, data);
3116 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3117 const u8 *peer, u64 *cookie)
3119 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3120 struct ieee80211_local *local = sdata->local;
3121 struct ieee80211_qos_hdr *nullfunc;
3122 struct sk_buff *skb;
3123 int size = sizeof(*nullfunc);
3126 struct ieee80211_tx_info *info;
3127 struct sta_info *sta;
3128 struct ieee80211_chanctx_conf *chanctx_conf;
3129 enum ieee80211_band band;
3132 /* the lock is needed to assign the cookie later */
3133 mutex_lock(&local->mtx);
3136 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3137 if (WARN_ON(!chanctx_conf)) {
3141 band = chanctx_conf->def.chan->band;
3142 sta = sta_info_get_bss(sdata, peer);
3151 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3152 IEEE80211_STYPE_QOS_NULLFUNC |
3153 IEEE80211_FCTL_FROMDS);
3156 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3157 IEEE80211_STYPE_NULLFUNC |
3158 IEEE80211_FCTL_FROMDS);
3161 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3169 skb_reserve(skb, local->hw.extra_tx_headroom);
3171 nullfunc = (void *) skb_put(skb, size);
3172 nullfunc->frame_control = fc;
3173 nullfunc->duration_id = 0;
3174 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3175 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3176 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3177 nullfunc->seq_ctrl = 0;
3179 info = IEEE80211_SKB_CB(skb);
3181 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3182 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3185 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3188 nullfunc->qos_ctrl = cpu_to_le16(7);
3190 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3197 ieee80211_xmit(sdata, sta, skb);
3203 mutex_unlock(&local->mtx);
3208 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3209 struct wireless_dev *wdev,
3210 struct cfg80211_chan_def *chandef)
3212 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3213 struct ieee80211_local *local = wiphy_priv(wiphy);
3214 struct ieee80211_chanctx_conf *chanctx_conf;
3218 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3220 *chandef = sdata->vif.bss_conf.chandef;
3222 } else if (local->open_count > 0 &&
3223 local->open_count == local->monitors &&
3224 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3225 if (local->use_chanctx)
3226 *chandef = local->monitor_chandef;
3228 *chandef = local->_oper_chandef;
3237 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3239 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3243 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3244 struct net_device *dev,
3245 struct cfg80211_qos_map *qos_map)
3247 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3248 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3251 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3254 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3256 /* A NULL qos_map was passed to disable QoS mapping */
3260 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3261 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3263 kfree_rcu(old_qos_map, rcu_head);
3268 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3269 struct net_device *dev,
3270 struct cfg80211_chan_def *chandef)
3272 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3276 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3278 ieee80211_bss_info_change_notify(sdata, changed);
3283 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3284 u8 tsid, const u8 *peer, u8 up,
3287 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3288 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3289 int ac = ieee802_1d_to_ac[up];
3291 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3294 if (!(sdata->wmm_acm & BIT(up)))
3297 if (ifmgd->tx_tspec[ac].admitted_time)
3300 if (admitted_time) {
3301 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3302 ifmgd->tx_tspec[ac].tsid = tsid;
3303 ifmgd->tx_tspec[ac].up = up;
3309 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3310 u8 tsid, const u8 *peer)
3312 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3313 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3314 struct ieee80211_local *local = wiphy_priv(wiphy);
3317 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3318 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3320 /* skip unused entries */
3321 if (!tx_tspec->admitted_time)
3324 if (tx_tspec->tsid != tsid)
3327 /* due to this new packets will be reassigned to non-ACM ACs */
3330 /* Make sure that all packets have been sent to avoid to
3331 * restore the QoS params on packets that are still on the
3335 ieee80211_flush_queues(local, sdata, false);
3337 /* restore the normal QoS parameters
3338 * (unconditionally to avoid races)
3340 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3341 tx_tspec->downgraded = false;
3342 ieee80211_sta_handle_tspec_ac_params(sdata);
3344 /* finally clear all the data */
3345 memset(tx_tspec, 0, sizeof(*tx_tspec));
3353 const struct cfg80211_ops mac80211_config_ops = {
3354 .add_virtual_intf = ieee80211_add_iface,
3355 .del_virtual_intf = ieee80211_del_iface,
3356 .change_virtual_intf = ieee80211_change_iface,
3357 .start_p2p_device = ieee80211_start_p2p_device,
3358 .stop_p2p_device = ieee80211_stop_p2p_device,
3359 .add_key = ieee80211_add_key,
3360 .del_key = ieee80211_del_key,
3361 .get_key = ieee80211_get_key,
3362 .set_default_key = ieee80211_config_default_key,
3363 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3364 .start_ap = ieee80211_start_ap,
3365 .change_beacon = ieee80211_change_beacon,
3366 .stop_ap = ieee80211_stop_ap,
3367 .add_station = ieee80211_add_station,
3368 .del_station = ieee80211_del_station,
3369 .change_station = ieee80211_change_station,
3370 .get_station = ieee80211_get_station,
3371 .dump_station = ieee80211_dump_station,
3372 .dump_survey = ieee80211_dump_survey,
3373 #ifdef CONFIG_MAC80211_MESH
3374 .add_mpath = ieee80211_add_mpath,
3375 .del_mpath = ieee80211_del_mpath,
3376 .change_mpath = ieee80211_change_mpath,
3377 .get_mpath = ieee80211_get_mpath,
3378 .dump_mpath = ieee80211_dump_mpath,
3379 .get_mpp = ieee80211_get_mpp,
3380 .dump_mpp = ieee80211_dump_mpp,
3381 .update_mesh_config = ieee80211_update_mesh_config,
3382 .get_mesh_config = ieee80211_get_mesh_config,
3383 .join_mesh = ieee80211_join_mesh,
3384 .leave_mesh = ieee80211_leave_mesh,
3386 .join_ocb = ieee80211_join_ocb,
3387 .leave_ocb = ieee80211_leave_ocb,
3388 .change_bss = ieee80211_change_bss,
3389 .set_txq_params = ieee80211_set_txq_params,
3390 .set_monitor_channel = ieee80211_set_monitor_channel,
3391 .suspend = ieee80211_suspend,
3392 .resume = ieee80211_resume,
3393 .scan = ieee80211_scan,
3394 .abort_scan = ieee80211_abort_scan,
3395 .sched_scan_start = ieee80211_sched_scan_start,
3396 .sched_scan_stop = ieee80211_sched_scan_stop,
3397 .auth = ieee80211_auth,
3398 .assoc = ieee80211_assoc,
3399 .deauth = ieee80211_deauth,
3400 .disassoc = ieee80211_disassoc,
3401 .join_ibss = ieee80211_join_ibss,
3402 .leave_ibss = ieee80211_leave_ibss,
3403 .set_mcast_rate = ieee80211_set_mcast_rate,
3404 .set_wiphy_params = ieee80211_set_wiphy_params,
3405 .set_tx_power = ieee80211_set_tx_power,
3406 .get_tx_power = ieee80211_get_tx_power,
3407 .set_wds_peer = ieee80211_set_wds_peer,
3408 .rfkill_poll = ieee80211_rfkill_poll,
3409 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3410 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3411 .set_power_mgmt = ieee80211_set_power_mgmt,
3412 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3413 .remain_on_channel = ieee80211_remain_on_channel,
3414 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3415 .mgmt_tx = ieee80211_mgmt_tx,
3416 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3417 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3418 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3419 .set_antenna = ieee80211_set_antenna,
3420 .get_antenna = ieee80211_get_antenna,
3421 .set_rekey_data = ieee80211_set_rekey_data,
3422 .tdls_oper = ieee80211_tdls_oper,
3423 .tdls_mgmt = ieee80211_tdls_mgmt,
3424 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3425 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3426 .probe_client = ieee80211_probe_client,
3427 .set_noack_map = ieee80211_set_noack_map,
3429 .set_wakeup = ieee80211_set_wakeup,
3431 .get_channel = ieee80211_cfg_get_channel,
3432 .start_radar_detection = ieee80211_start_radar_detection,
3433 .channel_switch = ieee80211_channel_switch,
3434 .set_qos_map = ieee80211_set_qos_map,
3435 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3436 .add_tx_ts = ieee80211_add_tx_ts,
3437 .del_tx_ts = ieee80211_del_tx_ts,