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"
25 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
27 unsigned char name_assign_type,
28 enum nl80211_iftype type,
30 struct vif_params *params)
32 struct ieee80211_local *local = wiphy_priv(wiphy);
33 struct wireless_dev *wdev;
34 struct ieee80211_sub_if_data *sdata;
37 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
41 if (type == NL80211_IFTYPE_MONITOR && flags) {
42 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
43 sdata->u.mntr_flags = *flags;
49 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
51 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
56 static int ieee80211_change_iface(struct wiphy *wiphy,
57 struct net_device *dev,
58 enum nl80211_iftype type, u32 *flags,
59 struct vif_params *params)
61 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
64 ret = ieee80211_if_change_type(sdata, type);
68 if (type == NL80211_IFTYPE_AP_VLAN &&
69 params && params->use_4addr == 0)
70 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
71 else if (type == NL80211_IFTYPE_STATION &&
72 params && params->use_4addr >= 0)
73 sdata->u.mgd.use_4addr = params->use_4addr;
75 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
76 struct ieee80211_local *local = sdata->local;
78 if (ieee80211_sdata_running(sdata)) {
79 u32 mask = MONITOR_FLAG_COOK_FRAMES |
83 * Prohibit MONITOR_FLAG_COOK_FRAMES and
84 * MONITOR_FLAG_ACTIVE to be changed while the
86 * Else we would need to add a lot of cruft
87 * to update everything:
88 * cooked_mntrs, monitor and all fif_* counters
89 * reconfigure hardware
91 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
94 ieee80211_adjust_monitor_flags(sdata, -1);
95 sdata->u.mntr_flags = *flags;
96 ieee80211_adjust_monitor_flags(sdata, 1);
98 ieee80211_configure_filter(local);
101 * Because the interface is down, ieee80211_do_stop
102 * and ieee80211_do_open take care of "everything"
103 * mentioned in the comment above.
105 sdata->u.mntr_flags = *flags;
112 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
113 struct wireless_dev *wdev)
115 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
118 mutex_lock(&sdata->local->chanctx_mtx);
119 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
120 mutex_unlock(&sdata->local->chanctx_mtx);
124 return ieee80211_do_open(wdev, true);
127 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
128 struct wireless_dev *wdev)
130 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
133 static int ieee80211_set_noack_map(struct wiphy *wiphy,
134 struct net_device *dev,
137 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
139 sdata->noack_map = noack_map;
141 ieee80211_check_fast_xmit_iface(sdata);
146 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
147 u8 key_idx, bool pairwise, const u8 *mac_addr,
148 struct key_params *params)
150 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
151 struct ieee80211_local *local = sdata->local;
152 struct sta_info *sta = NULL;
153 const struct ieee80211_cipher_scheme *cs = NULL;
154 struct ieee80211_key *key;
157 if (!ieee80211_sdata_running(sdata))
160 /* reject WEP and TKIP keys if WEP failed to initialize */
161 switch (params->cipher) {
162 case WLAN_CIPHER_SUITE_WEP40:
163 case WLAN_CIPHER_SUITE_TKIP:
164 case WLAN_CIPHER_SUITE_WEP104:
165 if (IS_ERR(local->wep_tx_tfm))
168 case WLAN_CIPHER_SUITE_CCMP:
169 case WLAN_CIPHER_SUITE_CCMP_256:
170 case WLAN_CIPHER_SUITE_AES_CMAC:
171 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
172 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
173 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
174 case WLAN_CIPHER_SUITE_GCMP:
175 case WLAN_CIPHER_SUITE_GCMP_256:
178 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
182 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
183 params->key, params->seq_len, params->seq,
189 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
191 mutex_lock(&local->sta_mtx);
194 if (ieee80211_vif_is_mesh(&sdata->vif))
195 sta = sta_info_get(sdata, mac_addr);
197 sta = sta_info_get_bss(sdata, mac_addr);
199 * The ASSOC test makes sure the driver is ready to
200 * receive the key. When wpa_supplicant has roamed
201 * using FT, it attempts to set the key before
202 * association has completed, this rejects that attempt
203 * so it will set the key again after association.
205 * TODO: accept the key if we have a station entry and
206 * add it to the device after the station.
208 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
209 ieee80211_key_free_unused(key);
215 switch (sdata->vif.type) {
216 case NL80211_IFTYPE_STATION:
217 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
218 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
220 case NL80211_IFTYPE_AP:
221 case NL80211_IFTYPE_AP_VLAN:
222 /* Keys without a station are used for TX only */
223 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
224 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
226 case NL80211_IFTYPE_ADHOC:
229 case NL80211_IFTYPE_MESH_POINT:
230 #ifdef CONFIG_MAC80211_MESH
231 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
232 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
235 case NL80211_IFTYPE_WDS:
236 case NL80211_IFTYPE_MONITOR:
237 case NL80211_IFTYPE_P2P_DEVICE:
238 case NL80211_IFTYPE_UNSPECIFIED:
239 case NUM_NL80211_IFTYPES:
240 case NL80211_IFTYPE_P2P_CLIENT:
241 case NL80211_IFTYPE_P2P_GO:
242 case NL80211_IFTYPE_OCB:
243 /* shouldn't happen */
249 sta->cipher_scheme = cs;
251 err = ieee80211_key_link(key, sdata, sta);
254 mutex_unlock(&local->sta_mtx);
259 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
260 u8 key_idx, bool pairwise, const u8 *mac_addr)
262 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
263 struct ieee80211_local *local = sdata->local;
264 struct sta_info *sta;
265 struct ieee80211_key *key = NULL;
268 mutex_lock(&local->sta_mtx);
269 mutex_lock(&local->key_mtx);
274 sta = sta_info_get_bss(sdata, mac_addr);
279 key = key_mtx_dereference(local, sta->ptk[key_idx]);
281 key = key_mtx_dereference(local, sta->gtk[key_idx]);
283 key = key_mtx_dereference(local, sdata->keys[key_idx]);
290 ieee80211_key_free(key, true);
294 mutex_unlock(&local->key_mtx);
295 mutex_unlock(&local->sta_mtx);
300 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
301 u8 key_idx, bool pairwise, const u8 *mac_addr,
303 void (*callback)(void *cookie,
304 struct key_params *params))
306 struct ieee80211_sub_if_data *sdata;
307 struct sta_info *sta = NULL;
309 struct key_params params;
310 struct ieee80211_key *key = NULL;
315 struct ieee80211_key_seq kseq = {};
317 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
322 sta = sta_info_get_bss(sdata, mac_addr);
326 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
327 key = rcu_dereference(sta->ptk[key_idx]);
328 else if (!pairwise &&
329 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
330 key = rcu_dereference(sta->gtk[key_idx]);
332 key = rcu_dereference(sdata->keys[key_idx]);
337 memset(¶ms, 0, sizeof(params));
339 params.cipher = key->conf.cipher;
341 switch (key->conf.cipher) {
342 case WLAN_CIPHER_SUITE_TKIP:
343 iv32 = key->u.tkip.tx.iv32;
344 iv16 = key->u.tkip.tx.iv16;
346 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
347 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
348 drv_get_key_seq(sdata->local, key, &kseq);
349 iv32 = kseq.tkip.iv32;
350 iv16 = kseq.tkip.iv16;
353 seq[0] = iv16 & 0xff;
354 seq[1] = (iv16 >> 8) & 0xff;
355 seq[2] = iv32 & 0xff;
356 seq[3] = (iv32 >> 8) & 0xff;
357 seq[4] = (iv32 >> 16) & 0xff;
358 seq[5] = (iv32 >> 24) & 0xff;
362 case WLAN_CIPHER_SUITE_CCMP:
363 case WLAN_CIPHER_SUITE_CCMP_256:
364 case WLAN_CIPHER_SUITE_AES_CMAC:
365 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
366 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
367 offsetof(typeof(kseq), aes_cmac));
368 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
369 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
370 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
371 offsetof(typeof(kseq), aes_gmac));
372 case WLAN_CIPHER_SUITE_GCMP:
373 case WLAN_CIPHER_SUITE_GCMP_256:
374 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
375 offsetof(typeof(kseq), gcmp));
377 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
378 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
379 drv_get_key_seq(sdata->local, key, &kseq);
380 memcpy(seq, kseq.ccmp.pn, 6);
382 pn64 = atomic64_read(&key->conf.tx_pn);
394 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
396 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
398 drv_get_key_seq(sdata->local, key, &kseq);
399 params.seq = kseq.hw.seq;
400 params.seq_len = kseq.hw.seq_len;
404 params.key = key->conf.key;
405 params.key_len = key->conf.keylen;
407 callback(cookie, ¶ms);
415 static int ieee80211_config_default_key(struct wiphy *wiphy,
416 struct net_device *dev,
417 u8 key_idx, bool uni,
420 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
422 ieee80211_set_default_key(sdata, key_idx, uni, multi);
427 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
428 struct net_device *dev,
431 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
433 ieee80211_set_default_mgmt_key(sdata, key_idx);
438 void sta_set_rate_info_tx(struct sta_info *sta,
439 const struct ieee80211_tx_rate *rate,
440 struct rate_info *rinfo)
443 if (rate->flags & IEEE80211_TX_RC_MCS) {
444 rinfo->flags |= RATE_INFO_FLAGS_MCS;
445 rinfo->mcs = rate->idx;
446 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
447 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
448 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
449 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
451 struct ieee80211_supported_band *sband;
452 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
455 sband = sta->local->hw.wiphy->bands[
456 ieee80211_get_sdata_band(sta->sdata)];
457 brate = sband->bitrates[rate->idx].bitrate;
458 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
460 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
461 rinfo->bw = RATE_INFO_BW_40;
462 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
463 rinfo->bw = RATE_INFO_BW_80;
464 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
465 rinfo->bw = RATE_INFO_BW_160;
467 rinfo->bw = RATE_INFO_BW_20;
468 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
469 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
472 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
476 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
477 rinfo->flags |= RATE_INFO_FLAGS_MCS;
478 rinfo->mcs = sta->last_rx_rate_idx;
479 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
480 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
481 rinfo->nss = sta->last_rx_rate_vht_nss;
482 rinfo->mcs = sta->last_rx_rate_idx;
484 struct ieee80211_supported_band *sband;
485 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
488 sband = sta->local->hw.wiphy->bands[
489 ieee80211_get_sdata_band(sta->sdata)];
490 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
491 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
494 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
495 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
497 if (sta->last_rx_rate_flag & RX_FLAG_5MHZ)
498 rinfo->bw = RATE_INFO_BW_5;
499 else if (sta->last_rx_rate_flag & RX_FLAG_10MHZ)
500 rinfo->bw = RATE_INFO_BW_10;
501 else if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
502 rinfo->bw = RATE_INFO_BW_40;
503 else if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
504 rinfo->bw = RATE_INFO_BW_80;
505 else if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
506 rinfo->bw = RATE_INFO_BW_160;
508 rinfo->bw = RATE_INFO_BW_20;
511 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
512 int idx, u8 *mac, struct station_info *sinfo)
514 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
515 struct ieee80211_local *local = sdata->local;
516 struct sta_info *sta;
519 mutex_lock(&local->sta_mtx);
521 sta = sta_info_get_by_idx(sdata, idx);
524 memcpy(mac, sta->sta.addr, ETH_ALEN);
525 sta_set_sinfo(sta, sinfo);
528 mutex_unlock(&local->sta_mtx);
533 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
534 int idx, struct survey_info *survey)
536 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
538 return drv_get_survey(local, idx, survey);
541 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
542 const u8 *mac, struct station_info *sinfo)
544 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
545 struct ieee80211_local *local = sdata->local;
546 struct sta_info *sta;
549 mutex_lock(&local->sta_mtx);
551 sta = sta_info_get_bss(sdata, mac);
554 sta_set_sinfo(sta, sinfo);
557 mutex_unlock(&local->sta_mtx);
562 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
563 struct cfg80211_chan_def *chandef)
565 struct ieee80211_local *local = wiphy_priv(wiphy);
566 struct ieee80211_sub_if_data *sdata;
569 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
572 mutex_lock(&local->mtx);
573 mutex_lock(&local->iflist_mtx);
574 if (local->use_chanctx) {
575 sdata = rcu_dereference_protected(
576 local->monitor_sdata,
577 lockdep_is_held(&local->iflist_mtx));
579 ieee80211_vif_release_channel(sdata);
580 ret = ieee80211_vif_use_channel(sdata, chandef,
581 IEEE80211_CHANCTX_EXCLUSIVE);
583 } else if (local->open_count == local->monitors) {
584 local->_oper_chandef = *chandef;
585 ieee80211_hw_config(local, 0);
589 local->monitor_chandef = *chandef;
590 mutex_unlock(&local->iflist_mtx);
591 mutex_unlock(&local->mtx);
596 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
597 const u8 *resp, size_t resp_len,
598 const struct ieee80211_csa_settings *csa)
600 struct probe_resp *new, *old;
602 if (!resp || !resp_len)
605 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
607 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
612 memcpy(new->data, resp, resp_len);
615 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
616 csa->n_counter_offsets_presp *
617 sizeof(new->csa_counter_offsets[0]));
619 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
621 kfree_rcu(old, rcu_head);
626 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
627 struct cfg80211_beacon_data *params,
628 const struct ieee80211_csa_settings *csa)
630 struct beacon_data *new, *old;
631 int new_head_len, new_tail_len;
633 u32 changed = BSS_CHANGED_BEACON;
635 old = sdata_dereference(sdata->u.ap.beacon, sdata);
638 /* Need to have a beacon head if we don't have one yet */
639 if (!params->head && !old)
642 /* new or old head? */
644 new_head_len = params->head_len;
646 new_head_len = old->head_len;
648 /* new or old tail? */
649 if (params->tail || !old)
650 /* params->tail_len will be zero for !params->tail */
651 new_tail_len = params->tail_len;
653 new_tail_len = old->tail_len;
655 size = sizeof(*new) + new_head_len + new_tail_len;
657 new = kzalloc(size, GFP_KERNEL);
661 /* start filling the new info now */
664 * pointers go into the block we allocated,
665 * memory is | beacon_data | head | tail |
667 new->head = ((u8 *) new) + sizeof(*new);
668 new->tail = new->head + new_head_len;
669 new->head_len = new_head_len;
670 new->tail_len = new_tail_len;
673 new->csa_current_counter = csa->count;
674 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
675 csa->n_counter_offsets_beacon *
676 sizeof(new->csa_counter_offsets[0]));
681 memcpy(new->head, params->head, new_head_len);
683 memcpy(new->head, old->head, new_head_len);
685 /* copy in optional tail */
687 memcpy(new->tail, params->tail, new_tail_len);
690 memcpy(new->tail, old->tail, new_tail_len);
692 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
693 params->probe_resp_len, csa);
697 changed |= BSS_CHANGED_AP_PROBE_RESP;
699 rcu_assign_pointer(sdata->u.ap.beacon, new);
702 kfree_rcu(old, rcu_head);
707 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
708 struct cfg80211_ap_settings *params)
710 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
711 struct ieee80211_local *local = sdata->local;
712 struct beacon_data *old;
713 struct ieee80211_sub_if_data *vlan;
714 u32 changed = BSS_CHANGED_BEACON_INT |
715 BSS_CHANGED_BEACON_ENABLED |
722 old = sdata_dereference(sdata->u.ap.beacon, sdata);
726 switch (params->smps_mode) {
727 case NL80211_SMPS_OFF:
728 sdata->smps_mode = IEEE80211_SMPS_OFF;
730 case NL80211_SMPS_STATIC:
731 sdata->smps_mode = IEEE80211_SMPS_STATIC;
733 case NL80211_SMPS_DYNAMIC:
734 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
739 sdata->needed_rx_chains = sdata->local->rx_chains;
741 mutex_lock(&local->mtx);
742 err = ieee80211_vif_use_channel(sdata, ¶ms->chandef,
743 IEEE80211_CHANCTX_SHARED);
745 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
746 mutex_unlock(&local->mtx);
751 * Apply control port protocol, this allows us to
752 * not encrypt dynamic WEP control frames.
754 sdata->control_port_protocol = params->crypto.control_port_ethertype;
755 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
756 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
760 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
761 vlan->control_port_protocol =
762 params->crypto.control_port_ethertype;
763 vlan->control_port_no_encrypt =
764 params->crypto.control_port_no_encrypt;
765 vlan->encrypt_headroom =
766 ieee80211_cs_headroom(sdata->local,
771 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
772 sdata->vif.bss_conf.dtim_period = params->dtim_period;
773 sdata->vif.bss_conf.enable_beacon = true;
775 sdata->vif.bss_conf.ssid_len = params->ssid_len;
776 if (params->ssid_len)
777 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
779 sdata->vif.bss_conf.hidden_ssid =
780 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
782 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
783 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
784 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
785 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
786 if (params->p2p_opp_ps)
787 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
788 IEEE80211_P2P_OPPPS_ENABLE_BIT;
790 err = ieee80211_assign_beacon(sdata, ¶ms->beacon, NULL);
792 ieee80211_vif_release_channel(sdata);
797 err = drv_start_ap(sdata->local, sdata);
799 old = sdata_dereference(sdata->u.ap.beacon, sdata);
802 kfree_rcu(old, rcu_head);
803 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
804 ieee80211_vif_release_channel(sdata);
808 ieee80211_recalc_dtim(local, sdata);
809 ieee80211_bss_info_change_notify(sdata, changed);
811 netif_carrier_on(dev);
812 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
813 netif_carrier_on(vlan->dev);
818 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
819 struct cfg80211_beacon_data *params)
821 struct ieee80211_sub_if_data *sdata;
822 struct beacon_data *old;
825 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
826 sdata_assert_lock(sdata);
828 /* don't allow changing the beacon while CSA is in place - offset
829 * of channel switch counter may change
831 if (sdata->vif.csa_active)
834 old = sdata_dereference(sdata->u.ap.beacon, sdata);
838 err = ieee80211_assign_beacon(sdata, params, NULL);
841 ieee80211_bss_info_change_notify(sdata, err);
845 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
847 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
848 struct ieee80211_sub_if_data *vlan;
849 struct ieee80211_local *local = sdata->local;
850 struct beacon_data *old_beacon;
851 struct probe_resp *old_probe_resp;
852 struct cfg80211_chan_def chandef;
854 sdata_assert_lock(sdata);
856 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
859 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
861 /* abort any running channel switch */
862 mutex_lock(&local->mtx);
863 sdata->vif.csa_active = false;
864 if (sdata->csa_block_tx) {
865 ieee80211_wake_vif_queues(local, sdata,
866 IEEE80211_QUEUE_STOP_REASON_CSA);
867 sdata->csa_block_tx = false;
870 mutex_unlock(&local->mtx);
872 kfree(sdata->u.ap.next_beacon);
873 sdata->u.ap.next_beacon = NULL;
875 /* turn off carrier for this interface and dependent VLANs */
876 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
877 netif_carrier_off(vlan->dev);
878 netif_carrier_off(dev);
880 /* remove beacon and probe response */
881 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
882 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
883 kfree_rcu(old_beacon, rcu_head);
885 kfree_rcu(old_probe_resp, rcu_head);
886 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
888 __sta_info_flush(sdata, true);
889 ieee80211_free_keys(sdata, true);
891 sdata->vif.bss_conf.enable_beacon = false;
892 sdata->vif.bss_conf.ssid_len = 0;
893 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
894 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
896 if (sdata->wdev.cac_started) {
897 chandef = sdata->vif.bss_conf.chandef;
898 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
899 cfg80211_cac_event(sdata->dev, &chandef,
900 NL80211_RADAR_CAC_ABORTED,
904 drv_stop_ap(sdata->local, sdata);
906 /* free all potentially still buffered bcast frames */
907 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
908 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
910 mutex_lock(&local->mtx);
911 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
912 ieee80211_vif_release_channel(sdata);
913 mutex_unlock(&local->mtx);
918 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
919 struct iapp_layer2_update {
920 u8 da[ETH_ALEN]; /* broadcast */
921 u8 sa[ETH_ALEN]; /* STA addr */
929 static void ieee80211_send_layer2_update(struct sta_info *sta)
931 struct iapp_layer2_update *msg;
934 /* Send Level 2 Update Frame to update forwarding tables in layer 2
937 skb = dev_alloc_skb(sizeof(*msg));
940 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
942 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
943 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
945 eth_broadcast_addr(msg->da);
946 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
949 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
950 msg->control = 0xaf; /* XID response lsb.1111F101.
951 * F=0 (no poll command; unsolicited frame) */
952 msg->xid_info[0] = 0x81; /* XID format identifier */
953 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
954 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
956 skb->dev = sta->sdata->dev;
957 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
958 memset(skb->cb, 0, sizeof(skb->cb));
962 static int sta_apply_auth_flags(struct ieee80211_local *local,
963 struct sta_info *sta,
968 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
969 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
970 !test_sta_flag(sta, WLAN_STA_AUTH)) {
971 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
976 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
977 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
978 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
980 * When peer becomes associated, init rate control as
981 * well. Some drivers require rate control initialized
982 * before drv_sta_state() is called.
984 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
985 rate_control_rate_init(sta);
987 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
992 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
993 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
994 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
995 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
996 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1003 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1004 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1005 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1006 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1011 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1012 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1013 test_sta_flag(sta, WLAN_STA_AUTH)) {
1014 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1022 static void sta_apply_mesh_params(struct ieee80211_local *local,
1023 struct sta_info *sta,
1024 struct station_parameters *params)
1026 #ifdef CONFIG_MAC80211_MESH
1027 struct ieee80211_sub_if_data *sdata = sta->sdata;
1030 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1031 switch (params->plink_state) {
1032 case NL80211_PLINK_ESTAB:
1033 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1034 changed = mesh_plink_inc_estab_count(sdata);
1035 sta->mesh->plink_state = params->plink_state;
1037 ieee80211_mps_sta_status_update(sta);
1038 changed |= ieee80211_mps_set_sta_local_pm(sta,
1039 sdata->u.mesh.mshcfg.power_mode);
1041 case NL80211_PLINK_LISTEN:
1042 case NL80211_PLINK_BLOCKED:
1043 case NL80211_PLINK_OPN_SNT:
1044 case NL80211_PLINK_OPN_RCVD:
1045 case NL80211_PLINK_CNF_RCVD:
1046 case NL80211_PLINK_HOLDING:
1047 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1048 changed = mesh_plink_dec_estab_count(sdata);
1049 sta->mesh->plink_state = params->plink_state;
1051 ieee80211_mps_sta_status_update(sta);
1052 changed |= ieee80211_mps_set_sta_local_pm(sta,
1053 NL80211_MESH_POWER_UNKNOWN);
1061 switch (params->plink_action) {
1062 case NL80211_PLINK_ACTION_NO_ACTION:
1065 case NL80211_PLINK_ACTION_OPEN:
1066 changed |= mesh_plink_open(sta);
1068 case NL80211_PLINK_ACTION_BLOCK:
1069 changed |= mesh_plink_block(sta);
1073 if (params->local_pm)
1074 changed |= ieee80211_mps_set_sta_local_pm(sta,
1077 ieee80211_mbss_info_change_notify(sdata, changed);
1081 static int sta_apply_parameters(struct ieee80211_local *local,
1082 struct sta_info *sta,
1083 struct station_parameters *params)
1086 struct ieee80211_supported_band *sband;
1087 struct ieee80211_sub_if_data *sdata = sta->sdata;
1088 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1091 sband = local->hw.wiphy->bands[band];
1093 mask = params->sta_flags_mask;
1094 set = params->sta_flags_set;
1096 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1098 * In mesh mode, ASSOCIATED isn't part of the nl80211
1099 * API but must follow AUTHENTICATED for driver state.
1101 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1102 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1103 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1104 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1105 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1107 * TDLS -- everything follows authorized, but
1108 * only becoming authorized is possible, not
1111 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1112 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1113 BIT(NL80211_STA_FLAG_ASSOCIATED);
1114 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1115 BIT(NL80211_STA_FLAG_ASSOCIATED);
1119 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1120 local->hw.queues >= IEEE80211_NUM_ACS)
1121 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1123 /* auth flags will be set later for TDLS,
1124 * and for unassociated stations that move to assocaited */
1125 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1126 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1127 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1128 ret = sta_apply_auth_flags(local, sta, mask, set);
1133 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1134 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1135 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1137 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1140 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1141 if (set & BIT(NL80211_STA_FLAG_MFP))
1142 set_sta_flag(sta, WLAN_STA_MFP);
1144 clear_sta_flag(sta, WLAN_STA_MFP);
1147 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1148 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1149 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1151 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1154 /* mark TDLS channel switch support, if the AP allows it */
1155 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1156 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1157 params->ext_capab_len >= 4 &&
1158 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1159 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1161 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1162 !sdata->u.mgd.tdls_wider_bw_prohibited &&
1163 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1164 params->ext_capab_len >= 8 &&
1165 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1166 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1168 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1169 sta->sta.uapsd_queues = params->uapsd_queues;
1170 sta->sta.max_sp = params->max_sp;
1174 * cfg80211 validates this (1-2007) and allows setting the AID
1175 * only when creating a new station entry
1178 sta->sta.aid = params->aid;
1181 * Some of the following updates would be racy if called on an
1182 * existing station, via ieee80211_change_station(). However,
1183 * all such changes are rejected by cfg80211 except for updates
1184 * changing the supported rates on an existing but not yet used
1188 if (params->listen_interval >= 0)
1189 sta->listen_interval = params->listen_interval;
1191 if (params->supported_rates) {
1192 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1193 sband, params->supported_rates,
1194 params->supported_rates_len,
1195 &sta->sta.supp_rates[band]);
1198 if (params->ht_capa)
1199 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1200 params->ht_capa, sta);
1202 if (params->vht_capa)
1203 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1204 params->vht_capa, sta);
1206 if (params->opmode_notif_used) {
1207 /* returned value is only needed for rc update, but the
1208 * rc isn't initialized here yet, so ignore it
1210 __ieee80211_vht_handle_opmode(sdata, sta,
1211 params->opmode_notif,
1215 if (ieee80211_vif_is_mesh(&sdata->vif))
1216 sta_apply_mesh_params(local, sta, params);
1218 /* set the STA state after all sta info from usermode has been set */
1219 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1220 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
1221 ret = sta_apply_auth_flags(local, sta, mask, set);
1229 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1231 struct station_parameters *params)
1233 struct ieee80211_local *local = wiphy_priv(wiphy);
1234 struct sta_info *sta;
1235 struct ieee80211_sub_if_data *sdata;
1240 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1242 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1243 sdata->vif.type != NL80211_IFTYPE_AP)
1246 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1248 if (ether_addr_equal(mac, sdata->vif.addr))
1251 if (is_multicast_ether_addr(mac))
1254 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1259 * defaults -- if userspace wants something else we'll
1260 * change it accordingly in sta_apply_parameters()
1262 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
1263 !(params->sta_flags_set & (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1264 BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
1265 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1266 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1268 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1269 sta->sta.tdls = true;
1271 err = sta_apply_parameters(local, sta, params);
1273 sta_info_free(local, sta);
1278 * for TDLS and for unassociated station, rate control should be
1279 * initialized only when rates are known and station is marked
1280 * authorized/associated
1282 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1283 test_sta_flag(sta, WLAN_STA_ASSOC))
1284 rate_control_rate_init(sta);
1286 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1287 sdata->vif.type == NL80211_IFTYPE_AP;
1289 err = sta_info_insert_rcu(sta);
1296 ieee80211_send_layer2_update(sta);
1303 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1304 struct station_del_parameters *params)
1306 struct ieee80211_sub_if_data *sdata;
1308 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1311 return sta_info_destroy_addr_bss(sdata, params->mac);
1313 sta_info_flush(sdata);
1317 static int ieee80211_change_station(struct wiphy *wiphy,
1318 struct net_device *dev, const u8 *mac,
1319 struct station_parameters *params)
1321 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1322 struct ieee80211_local *local = wiphy_priv(wiphy);
1323 struct sta_info *sta;
1324 struct ieee80211_sub_if_data *vlansdata;
1325 enum cfg80211_station_type statype;
1328 mutex_lock(&local->sta_mtx);
1330 sta = sta_info_get_bss(sdata, mac);
1336 switch (sdata->vif.type) {
1337 case NL80211_IFTYPE_MESH_POINT:
1338 if (sdata->u.mesh.user_mpm)
1339 statype = CFG80211_STA_MESH_PEER_USER;
1341 statype = CFG80211_STA_MESH_PEER_KERNEL;
1343 case NL80211_IFTYPE_ADHOC:
1344 statype = CFG80211_STA_IBSS;
1346 case NL80211_IFTYPE_STATION:
1347 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1348 statype = CFG80211_STA_AP_STA;
1351 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1352 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1354 statype = CFG80211_STA_TDLS_PEER_SETUP;
1356 case NL80211_IFTYPE_AP:
1357 case NL80211_IFTYPE_AP_VLAN:
1358 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1359 statype = CFG80211_STA_AP_CLIENT;
1361 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
1368 err = cfg80211_check_station_change(wiphy, params, statype);
1372 if (params->vlan && params->vlan != sta->sdata->dev) {
1373 bool prev_4addr = false;
1374 bool new_4addr = false;
1376 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1378 if (params->vlan->ieee80211_ptr->use_4addr) {
1379 if (vlansdata->u.vlan.sta) {
1384 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1388 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1389 sta->sdata->u.vlan.sta) {
1390 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1394 sta->sdata = vlansdata;
1395 ieee80211_check_fast_xmit(sta);
1397 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1398 prev_4addr != new_4addr) {
1400 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1402 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1405 ieee80211_send_layer2_update(sta);
1408 err = sta_apply_parameters(local, sta, params);
1412 mutex_unlock(&local->sta_mtx);
1414 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1415 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1416 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1417 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1418 sta_info_tx_streams(sta) != 1) {
1420 "%pM just authorized and MIMO capable - update SMPS\n",
1422 ieee80211_send_smps_action(sta->sdata,
1423 sta->sdata->bss->req_smps,
1425 sta->sdata->vif.bss_conf.bssid);
1428 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1429 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1430 ieee80211_recalc_ps(local, -1);
1431 ieee80211_recalc_ps_vif(sdata);
1436 mutex_unlock(&local->sta_mtx);
1440 #ifdef CONFIG_MAC80211_MESH
1441 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1442 const u8 *dst, const u8 *next_hop)
1444 struct ieee80211_sub_if_data *sdata;
1445 struct mesh_path *mpath;
1446 struct sta_info *sta;
1448 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1451 sta = sta_info_get(sdata, next_hop);
1457 mpath = mesh_path_add(sdata, dst);
1458 if (IS_ERR(mpath)) {
1460 return PTR_ERR(mpath);
1463 mesh_path_fix_nexthop(mpath, sta);
1469 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1472 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1475 return mesh_path_del(sdata, dst);
1477 mesh_path_flush_by_iface(sdata);
1481 static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1482 const u8 *dst, const u8 *next_hop)
1484 struct ieee80211_sub_if_data *sdata;
1485 struct mesh_path *mpath;
1486 struct sta_info *sta;
1488 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1492 sta = sta_info_get(sdata, next_hop);
1498 mpath = mesh_path_lookup(sdata, dst);
1504 mesh_path_fix_nexthop(mpath, sta);
1510 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1511 struct mpath_info *pinfo)
1513 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1516 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1518 eth_zero_addr(next_hop);
1520 memset(pinfo, 0, sizeof(*pinfo));
1522 pinfo->generation = mesh_paths_generation;
1524 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1527 MPATH_INFO_EXPTIME |
1528 MPATH_INFO_DISCOVERY_TIMEOUT |
1529 MPATH_INFO_DISCOVERY_RETRIES |
1532 pinfo->frame_qlen = mpath->frame_queue.qlen;
1533 pinfo->sn = mpath->sn;
1534 pinfo->metric = mpath->metric;
1535 if (time_before(jiffies, mpath->exp_time))
1536 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1537 pinfo->discovery_timeout =
1538 jiffies_to_msecs(mpath->discovery_timeout);
1539 pinfo->discovery_retries = mpath->discovery_retries;
1540 if (mpath->flags & MESH_PATH_ACTIVE)
1541 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1542 if (mpath->flags & MESH_PATH_RESOLVING)
1543 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1544 if (mpath->flags & MESH_PATH_SN_VALID)
1545 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1546 if (mpath->flags & MESH_PATH_FIXED)
1547 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1548 if (mpath->flags & MESH_PATH_RESOLVED)
1549 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1552 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1553 u8 *dst, u8 *next_hop, 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(sdata, dst);
1567 memcpy(dst, mpath->dst, ETH_ALEN);
1568 mpath_set_pinfo(mpath, next_hop, pinfo);
1573 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1574 int idx, u8 *dst, u8 *next_hop,
1575 struct mpath_info *pinfo)
1577 struct ieee80211_sub_if_data *sdata;
1578 struct mesh_path *mpath;
1580 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1583 mpath = mesh_path_lookup_by_idx(sdata, idx);
1588 memcpy(dst, mpath->dst, ETH_ALEN);
1589 mpath_set_pinfo(mpath, next_hop, pinfo);
1594 static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1595 struct mpath_info *pinfo)
1597 memset(pinfo, 0, sizeof(*pinfo));
1598 memcpy(mpp, mpath->mpp, ETH_ALEN);
1600 pinfo->generation = mpp_paths_generation;
1603 static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1604 u8 *dst, u8 *mpp, 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(sdata, dst);
1618 memcpy(dst, mpath->dst, ETH_ALEN);
1619 mpp_set_pinfo(mpath, mpp, pinfo);
1624 static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1625 int idx, u8 *dst, u8 *mpp,
1626 struct mpath_info *pinfo)
1628 struct ieee80211_sub_if_data *sdata;
1629 struct mesh_path *mpath;
1631 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1634 mpath = mpp_path_lookup_by_idx(sdata, idx);
1639 memcpy(dst, mpath->dst, ETH_ALEN);
1640 mpp_set_pinfo(mpath, mpp, pinfo);
1645 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1646 struct net_device *dev,
1647 struct mesh_config *conf)
1649 struct ieee80211_sub_if_data *sdata;
1650 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1652 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1656 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1658 return (mask >> (parm-1)) & 0x1;
1661 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1662 const struct mesh_setup *setup)
1666 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1667 struct ieee80211_sub_if_data, u.mesh);
1669 /* allocate information elements */
1673 if (setup->ie_len) {
1674 new_ie = kmemdup(setup->ie, setup->ie_len,
1679 ifmsh->ie_len = setup->ie_len;
1683 /* now copy the rest of the setup parameters */
1684 ifmsh->mesh_id_len = setup->mesh_id_len;
1685 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1686 ifmsh->mesh_sp_id = setup->sync_method;
1687 ifmsh->mesh_pp_id = setup->path_sel_proto;
1688 ifmsh->mesh_pm_id = setup->path_metric;
1689 ifmsh->user_mpm = setup->user_mpm;
1690 ifmsh->mesh_auth_id = setup->auth_id;
1691 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1692 if (setup->is_authenticated)
1693 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1694 if (setup->is_secure)
1695 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1697 /* mcast rate setting in Mesh Node */
1698 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1699 sizeof(setup->mcast_rate));
1700 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1702 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1703 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1708 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1709 struct net_device *dev, u32 mask,
1710 const struct mesh_config *nconf)
1712 struct mesh_config *conf;
1713 struct ieee80211_sub_if_data *sdata;
1714 struct ieee80211_if_mesh *ifmsh;
1716 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1717 ifmsh = &sdata->u.mesh;
1719 /* Set the config options which we are interested in setting */
1720 conf = &(sdata->u.mesh.mshcfg);
1721 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1722 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1723 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1724 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1725 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1726 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1727 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1728 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1729 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1730 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1731 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1732 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1733 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1734 conf->element_ttl = nconf->element_ttl;
1735 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1736 if (ifmsh->user_mpm)
1738 conf->auto_open_plinks = nconf->auto_open_plinks;
1740 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1741 conf->dot11MeshNbrOffsetMaxNeighbor =
1742 nconf->dot11MeshNbrOffsetMaxNeighbor;
1743 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1744 conf->dot11MeshHWMPmaxPREQretries =
1745 nconf->dot11MeshHWMPmaxPREQretries;
1746 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1747 conf->path_refresh_time = nconf->path_refresh_time;
1748 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1749 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1750 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1751 conf->dot11MeshHWMPactivePathTimeout =
1752 nconf->dot11MeshHWMPactivePathTimeout;
1753 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1754 conf->dot11MeshHWMPpreqMinInterval =
1755 nconf->dot11MeshHWMPpreqMinInterval;
1756 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1757 conf->dot11MeshHWMPperrMinInterval =
1758 nconf->dot11MeshHWMPperrMinInterval;
1759 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1761 conf->dot11MeshHWMPnetDiameterTraversalTime =
1762 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1763 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1764 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1765 ieee80211_mesh_root_setup(ifmsh);
1767 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1768 /* our current gate announcement implementation rides on root
1769 * announcements, so require this ifmsh to also be a root node
1771 if (nconf->dot11MeshGateAnnouncementProtocol &&
1772 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1773 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1774 ieee80211_mesh_root_setup(ifmsh);
1776 conf->dot11MeshGateAnnouncementProtocol =
1777 nconf->dot11MeshGateAnnouncementProtocol;
1779 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1780 conf->dot11MeshHWMPRannInterval =
1781 nconf->dot11MeshHWMPRannInterval;
1782 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1783 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1784 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1785 /* our RSSI threshold implementation is supported only for
1786 * devices that report signal in dBm.
1788 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
1790 conf->rssi_threshold = nconf->rssi_threshold;
1792 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1793 conf->ht_opmode = nconf->ht_opmode;
1794 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1795 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1797 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1798 conf->dot11MeshHWMPactivePathToRootTimeout =
1799 nconf->dot11MeshHWMPactivePathToRootTimeout;
1800 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1801 conf->dot11MeshHWMProotInterval =
1802 nconf->dot11MeshHWMProotInterval;
1803 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1804 conf->dot11MeshHWMPconfirmationInterval =
1805 nconf->dot11MeshHWMPconfirmationInterval;
1806 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1807 conf->power_mode = nconf->power_mode;
1808 ieee80211_mps_local_status_update(sdata);
1810 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1811 conf->dot11MeshAwakeWindowDuration =
1812 nconf->dot11MeshAwakeWindowDuration;
1813 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1814 conf->plink_timeout = nconf->plink_timeout;
1815 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1819 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1820 const struct mesh_config *conf,
1821 const struct mesh_setup *setup)
1823 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1824 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1827 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1828 err = copy_mesh_setup(ifmsh, setup);
1832 /* can mesh use other SMPS modes? */
1833 sdata->smps_mode = IEEE80211_SMPS_OFF;
1834 sdata->needed_rx_chains = sdata->local->rx_chains;
1836 mutex_lock(&sdata->local->mtx);
1837 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1838 IEEE80211_CHANCTX_SHARED);
1839 mutex_unlock(&sdata->local->mtx);
1843 return ieee80211_start_mesh(sdata);
1846 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1848 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1850 ieee80211_stop_mesh(sdata);
1851 mutex_lock(&sdata->local->mtx);
1852 ieee80211_vif_release_channel(sdata);
1853 mutex_unlock(&sdata->local->mtx);
1859 static int ieee80211_change_bss(struct wiphy *wiphy,
1860 struct net_device *dev,
1861 struct bss_parameters *params)
1863 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1864 enum ieee80211_band band;
1867 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1870 band = ieee80211_get_sdata_band(sdata);
1872 if (params->use_cts_prot >= 0) {
1873 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1874 changed |= BSS_CHANGED_ERP_CTS_PROT;
1876 if (params->use_short_preamble >= 0) {
1877 sdata->vif.bss_conf.use_short_preamble =
1878 params->use_short_preamble;
1879 changed |= BSS_CHANGED_ERP_PREAMBLE;
1882 if (!sdata->vif.bss_conf.use_short_slot &&
1883 band == IEEE80211_BAND_5GHZ) {
1884 sdata->vif.bss_conf.use_short_slot = true;
1885 changed |= BSS_CHANGED_ERP_SLOT;
1888 if (params->use_short_slot_time >= 0) {
1889 sdata->vif.bss_conf.use_short_slot =
1890 params->use_short_slot_time;
1891 changed |= BSS_CHANGED_ERP_SLOT;
1894 if (params->basic_rates) {
1895 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1897 params->basic_rates,
1898 params->basic_rates_len,
1899 &sdata->vif.bss_conf.basic_rates);
1900 changed |= BSS_CHANGED_BASIC_RATES;
1903 if (params->ap_isolate >= 0) {
1904 if (params->ap_isolate)
1905 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1907 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1910 if (params->ht_opmode >= 0) {
1911 sdata->vif.bss_conf.ht_operation_mode =
1912 (u16) params->ht_opmode;
1913 changed |= BSS_CHANGED_HT;
1916 if (params->p2p_ctwindow >= 0) {
1917 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1918 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1919 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1920 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1921 changed |= BSS_CHANGED_P2P_PS;
1924 if (params->p2p_opp_ps > 0) {
1925 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1926 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1927 changed |= BSS_CHANGED_P2P_PS;
1928 } else if (params->p2p_opp_ps == 0) {
1929 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1930 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
1931 changed |= BSS_CHANGED_P2P_PS;
1934 ieee80211_bss_info_change_notify(sdata, changed);
1939 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1940 struct net_device *dev,
1941 struct ieee80211_txq_params *params)
1943 struct ieee80211_local *local = wiphy_priv(wiphy);
1944 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1945 struct ieee80211_tx_queue_params p;
1947 if (!local->ops->conf_tx)
1950 if (local->hw.queues < IEEE80211_NUM_ACS)
1953 memset(&p, 0, sizeof(p));
1954 p.aifs = params->aifs;
1955 p.cw_max = params->cwmax;
1956 p.cw_min = params->cwmin;
1957 p.txop = params->txop;
1960 * Setting tx queue params disables u-apsd because it's only
1961 * called in master mode.
1965 sdata->tx_conf[params->ac] = p;
1966 if (drv_conf_tx(local, sdata, params->ac, &p)) {
1967 wiphy_debug(local->hw.wiphy,
1968 "failed to set TX queue parameters for AC %d\n",
1973 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1979 static int ieee80211_suspend(struct wiphy *wiphy,
1980 struct cfg80211_wowlan *wowlan)
1982 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1985 static int ieee80211_resume(struct wiphy *wiphy)
1987 return __ieee80211_resume(wiphy_priv(wiphy));
1990 #define ieee80211_suspend NULL
1991 #define ieee80211_resume NULL
1994 static int ieee80211_scan(struct wiphy *wiphy,
1995 struct cfg80211_scan_request *req)
1997 struct ieee80211_sub_if_data *sdata;
1999 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2001 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2002 case NL80211_IFTYPE_STATION:
2003 case NL80211_IFTYPE_ADHOC:
2004 case NL80211_IFTYPE_MESH_POINT:
2005 case NL80211_IFTYPE_P2P_CLIENT:
2006 case NL80211_IFTYPE_P2P_DEVICE:
2008 case NL80211_IFTYPE_P2P_GO:
2009 if (sdata->local->ops->hw_scan)
2012 * FIXME: implement NoA while scanning in software,
2013 * for now fall through to allow scanning only when
2014 * beaconing hasn't been configured yet
2016 case NL80211_IFTYPE_AP:
2018 * If the scan has been forced (and the driver supports
2019 * forcing), don't care about being beaconing already.
2020 * This will create problems to the attached stations (e.g. all
2021 * the frames sent while scanning on other channel will be
2024 if (sdata->u.ap.beacon &&
2025 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2026 !(req->flags & NL80211_SCAN_FLAG_AP)))
2033 return ieee80211_request_scan(sdata, req);
2037 ieee80211_sched_scan_start(struct wiphy *wiphy,
2038 struct net_device *dev,
2039 struct cfg80211_sched_scan_request *req)
2041 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2043 if (!sdata->local->ops->sched_scan_start)
2046 return ieee80211_request_sched_scan_start(sdata, req);
2050 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2052 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2054 if (!sdata->local->ops->sched_scan_stop)
2057 return ieee80211_request_sched_scan_stop(sdata);
2060 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2061 struct cfg80211_auth_request *req)
2063 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2066 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2067 struct cfg80211_assoc_request *req)
2069 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2072 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2073 struct cfg80211_deauth_request *req)
2075 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2078 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2079 struct cfg80211_disassoc_request *req)
2081 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2084 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2085 struct cfg80211_ibss_params *params)
2087 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2090 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2092 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2095 static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2096 struct ocb_setup *setup)
2098 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2101 static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2103 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2106 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2107 int rate[IEEE80211_NUM_BANDS])
2109 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2111 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2112 sizeof(int) * IEEE80211_NUM_BANDS);
2117 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2119 struct ieee80211_local *local = wiphy_priv(wiphy);
2122 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2123 ieee80211_check_fast_xmit_all(local);
2125 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2128 ieee80211_check_fast_xmit_all(local);
2133 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2134 (changed & WIPHY_PARAM_DYN_ACK)) {
2137 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2138 wiphy->coverage_class : -1;
2139 err = drv_set_coverage_class(local, coverage_class);
2145 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2146 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2152 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2153 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2155 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2157 if (changed & WIPHY_PARAM_RETRY_LONG) {
2158 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2160 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2163 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2164 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2169 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2170 struct wireless_dev *wdev,
2171 enum nl80211_tx_power_setting type, int mbm)
2173 struct ieee80211_local *local = wiphy_priv(wiphy);
2174 struct ieee80211_sub_if_data *sdata;
2175 enum nl80211_tx_power_setting txp_type = type;
2176 bool update_txp_type = false;
2179 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2182 case NL80211_TX_POWER_AUTOMATIC:
2183 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2184 txp_type = NL80211_TX_POWER_LIMITED;
2186 case NL80211_TX_POWER_LIMITED:
2187 case NL80211_TX_POWER_FIXED:
2188 if (mbm < 0 || (mbm % 100))
2190 sdata->user_power_level = MBM_TO_DBM(mbm);
2194 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2195 update_txp_type = true;
2196 sdata->vif.bss_conf.txpower_type = txp_type;
2199 ieee80211_recalc_txpower(sdata, update_txp_type);
2205 case NL80211_TX_POWER_AUTOMATIC:
2206 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2207 txp_type = NL80211_TX_POWER_LIMITED;
2209 case NL80211_TX_POWER_LIMITED:
2210 case NL80211_TX_POWER_FIXED:
2211 if (mbm < 0 || (mbm % 100))
2213 local->user_power_level = MBM_TO_DBM(mbm);
2217 mutex_lock(&local->iflist_mtx);
2218 list_for_each_entry(sdata, &local->interfaces, list) {
2219 sdata->user_power_level = local->user_power_level;
2220 if (txp_type != sdata->vif.bss_conf.txpower_type)
2221 update_txp_type = true;
2222 sdata->vif.bss_conf.txpower_type = txp_type;
2224 list_for_each_entry(sdata, &local->interfaces, list)
2225 ieee80211_recalc_txpower(sdata, update_txp_type);
2226 mutex_unlock(&local->iflist_mtx);
2231 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2232 struct wireless_dev *wdev,
2235 struct ieee80211_local *local = wiphy_priv(wiphy);
2236 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2238 if (local->ops->get_txpower)
2239 return drv_get_txpower(local, sdata, dbm);
2241 if (!local->use_chanctx)
2242 *dbm = local->hw.conf.power_level;
2244 *dbm = sdata->vif.bss_conf.txpower;
2249 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2252 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2254 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2259 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2261 struct ieee80211_local *local = wiphy_priv(wiphy);
2263 drv_rfkill_poll(local);
2266 #ifdef CONFIG_NL80211_TESTMODE
2267 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2268 struct wireless_dev *wdev,
2269 void *data, int len)
2271 struct ieee80211_local *local = wiphy_priv(wiphy);
2272 struct ieee80211_vif *vif = NULL;
2274 if (!local->ops->testmode_cmd)
2278 struct ieee80211_sub_if_data *sdata;
2280 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2281 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2285 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2288 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2289 struct sk_buff *skb,
2290 struct netlink_callback *cb,
2291 void *data, int len)
2293 struct ieee80211_local *local = wiphy_priv(wiphy);
2295 if (!local->ops->testmode_dump)
2298 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2302 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2303 enum ieee80211_smps_mode smps_mode)
2305 struct sta_info *sta;
2306 enum ieee80211_smps_mode old_req;
2308 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2311 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2314 old_req = sdata->u.ap.req_smps;
2315 sdata->u.ap.req_smps = smps_mode;
2317 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2318 if (old_req == smps_mode ||
2319 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2322 /* If no associated stations, there's no need to do anything */
2323 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2324 sdata->smps_mode = smps_mode;
2325 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2330 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2331 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2333 mutex_lock(&sdata->local->sta_mtx);
2334 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2336 * Only stations associated to our AP and
2339 if (sta->sdata->bss != &sdata->u.ap)
2342 /* This station doesn't support MIMO - skip it */
2343 if (sta_info_tx_streams(sta) == 1)
2347 * Don't wake up a STA just to send the action frame
2348 * unless we are getting more restrictive.
2350 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2351 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2353 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2359 * If the STA is not authorized, wait until it gets
2360 * authorized and the action frame will be sent then.
2362 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2365 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2366 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2367 sdata->vif.bss_conf.bssid);
2369 mutex_unlock(&sdata->local->sta_mtx);
2371 sdata->smps_mode = smps_mode;
2372 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2377 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2378 enum ieee80211_smps_mode smps_mode)
2381 enum ieee80211_smps_mode old_req;
2383 struct sta_info *sta;
2384 bool tdls_peer_found = false;
2386 lockdep_assert_held(&sdata->wdev.mtx);
2388 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2391 old_req = sdata->u.mgd.req_smps;
2392 sdata->u.mgd.req_smps = smps_mode;
2394 if (old_req == smps_mode &&
2395 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2399 * If not associated, or current association is not an HT
2400 * association, there's no need to do anything, just store
2401 * the new value until we associate.
2403 if (!sdata->u.mgd.associated ||
2404 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2407 ap = sdata->u.mgd.associated->bssid;
2410 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2411 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2412 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2415 tdls_peer_found = true;
2420 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2421 if (tdls_peer_found || !sdata->u.mgd.powersave)
2422 smps_mode = IEEE80211_SMPS_OFF;
2424 smps_mode = IEEE80211_SMPS_DYNAMIC;
2427 /* send SM PS frame to AP */
2428 err = ieee80211_send_smps_action(sdata, smps_mode,
2431 sdata->u.mgd.req_smps = old_req;
2432 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2433 ieee80211_teardown_tdls_peers(sdata);
2438 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2439 bool enabled, int timeout)
2441 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2442 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2444 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2447 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
2450 if (enabled == sdata->u.mgd.powersave &&
2451 timeout == local->dynamic_ps_forced_timeout)
2454 sdata->u.mgd.powersave = enabled;
2455 local->dynamic_ps_forced_timeout = timeout;
2457 /* no change, but if automatic follow powersave */
2459 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2460 sdata_unlock(sdata);
2462 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
2463 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2465 ieee80211_recalc_ps(local, -1);
2466 ieee80211_recalc_ps_vif(sdata);
2471 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2472 struct net_device *dev,
2473 s32 rssi_thold, u32 rssi_hyst)
2475 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2476 struct ieee80211_vif *vif = &sdata->vif;
2477 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2479 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2480 rssi_hyst == bss_conf->cqm_rssi_hyst)
2483 bss_conf->cqm_rssi_thold = rssi_thold;
2484 bss_conf->cqm_rssi_hyst = rssi_hyst;
2486 /* tell the driver upon association, unless already associated */
2487 if (sdata->u.mgd.associated &&
2488 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2489 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2494 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2495 struct net_device *dev,
2497 const struct cfg80211_bitrate_mask *mask)
2499 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2500 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2503 if (!ieee80211_sdata_running(sdata))
2506 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
2507 ret = drv_set_bitrate_mask(local, sdata, mask);
2512 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2513 struct ieee80211_supported_band *sband = wiphy->bands[i];
2516 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2517 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2518 sizeof(mask->control[i].ht_mcs));
2519 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2520 mask->control[i].vht_mcs,
2521 sizeof(mask->control[i].vht_mcs));
2523 sdata->rc_has_mcs_mask[i] = false;
2524 sdata->rc_has_vht_mcs_mask[i] = false;
2528 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2529 if (~sdata->rc_rateidx_mcs_mask[i][j])
2530 sdata->rc_has_mcs_mask[i] = true;
2532 if (~sdata->rc_rateidx_vht_mcs_mask[i][j])
2533 sdata->rc_has_vht_mcs_mask[i] = true;
2535 if (sdata->rc_has_mcs_mask[i] &&
2536 sdata->rc_has_vht_mcs_mask[i])
2544 static bool ieee80211_coalesce_started_roc(struct ieee80211_local *local,
2545 struct ieee80211_roc_work *new_roc,
2546 struct ieee80211_roc_work *cur_roc)
2548 unsigned long now = jiffies;
2549 unsigned long remaining = cur_roc->hw_start_time +
2550 msecs_to_jiffies(cur_roc->duration) -
2553 if (WARN_ON(!cur_roc->started || !cur_roc->hw_begun))
2556 /* if it doesn't fit entirely, schedule a new one */
2557 if (new_roc->duration > jiffies_to_msecs(remaining))
2560 ieee80211_handle_roc_started(new_roc);
2562 /* add to dependents so we send the expired event properly */
2563 list_add_tail(&new_roc->list, &cur_roc->dependents);
2567 static u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
2569 lockdep_assert_held(&local->mtx);
2571 local->roc_cookie_counter++;
2573 /* wow, you wrapped 64 bits ... more likely a bug */
2574 if (WARN_ON(local->roc_cookie_counter == 0))
2575 local->roc_cookie_counter++;
2577 return local->roc_cookie_counter;
2580 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2581 struct ieee80211_sub_if_data *sdata,
2582 struct ieee80211_channel *channel,
2583 unsigned int duration, u64 *cookie,
2584 struct sk_buff *txskb,
2585 enum ieee80211_roc_type type)
2587 struct ieee80211_roc_work *roc, *tmp;
2588 bool queued = false;
2591 lockdep_assert_held(&local->mtx);
2593 if (local->use_chanctx && !local->ops->remain_on_channel)
2596 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2601 * If the duration is zero, then the driver
2602 * wouldn't actually do anything. Set it to
2605 * TODO: cancel the off-channel operation
2606 * when we get the SKB's TX status and
2607 * the wait time was zero before.
2612 roc->chan = channel;
2613 roc->duration = duration;
2614 roc->req_duration = duration;
2618 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2619 INIT_LIST_HEAD(&roc->dependents);
2622 * cookie is either the roc cookie (for normal roc)
2623 * or the SKB (for mgmt TX)
2626 roc->cookie = ieee80211_mgmt_tx_cookie(local);
2627 *cookie = roc->cookie;
2629 roc->mgmt_tx_cookie = *cookie;
2632 /* if there's one pending or we're scanning, queue this one */
2633 if (!list_empty(&local->roc_list) ||
2634 local->scanning || ieee80211_is_radar_required(local))
2635 goto out_check_combine;
2637 /* if not HW assist, just queue & schedule work */
2638 if (!local->ops->remain_on_channel) {
2639 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2643 /* otherwise actually kick it off here (for error handling) */
2645 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2651 roc->started = true;
2655 list_for_each_entry(tmp, &local->roc_list, list) {
2656 if (tmp->chan != channel || tmp->sdata != sdata)
2660 * Extend this ROC if possible:
2662 * If it hasn't started yet, just increase the duration
2663 * and add the new one to the list of dependents.
2664 * If the type of the new ROC has higher priority, modify the
2665 * type of the previous one to match that of the new one.
2667 if (!tmp->started) {
2668 list_add_tail(&roc->list, &tmp->dependents);
2669 tmp->duration = max(tmp->duration, roc->duration);
2670 tmp->type = max(tmp->type, roc->type);
2675 /* If it has already started, it's more difficult ... */
2676 if (local->ops->remain_on_channel) {
2678 * In the offloaded ROC case, if it hasn't begun, add
2679 * this new one to the dependent list to be handled
2680 * when the master one begins. If it has begun,
2681 * check if it fits entirely within the existing one,
2682 * in which case it will just be dependent as well.
2683 * Otherwise, schedule it by itself.
2685 if (!tmp->hw_begun) {
2686 list_add_tail(&roc->list, &tmp->dependents);
2691 if (ieee80211_coalesce_started_roc(local, roc, tmp))
2693 } else if (del_timer_sync(&tmp->work.timer)) {
2694 unsigned long new_end;
2697 * In the software ROC case, cancel the timer, if
2698 * that fails then the finish work is already
2699 * queued/pending and thus we queue the new ROC
2700 * normally, if that succeeds then we can extend
2701 * the timer duration and TX the frame (if any.)
2704 list_add_tail(&roc->list, &tmp->dependents);
2707 new_end = jiffies + msecs_to_jiffies(roc->duration);
2709 /* ok, it was started & we canceled timer */
2710 if (time_after(new_end, tmp->work.timer.expires))
2711 mod_timer(&tmp->work.timer, new_end);
2713 add_timer(&tmp->work.timer);
2715 ieee80211_handle_roc_started(roc);
2722 list_add_tail(&roc->list, &local->roc_list);
2727 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2728 struct wireless_dev *wdev,
2729 struct ieee80211_channel *chan,
2730 unsigned int duration,
2733 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2734 struct ieee80211_local *local = sdata->local;
2737 mutex_lock(&local->mtx);
2738 ret = ieee80211_start_roc_work(local, sdata, chan,
2739 duration, cookie, NULL,
2740 IEEE80211_ROC_TYPE_NORMAL);
2741 mutex_unlock(&local->mtx);
2746 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2747 u64 cookie, bool mgmt_tx)
2749 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2752 mutex_lock(&local->mtx);
2753 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2754 struct ieee80211_roc_work *dep, *tmp2;
2756 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2757 if (!mgmt_tx && dep->cookie != cookie)
2759 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2761 /* found dependent item -- just remove it */
2762 list_del(&dep->list);
2763 mutex_unlock(&local->mtx);
2765 ieee80211_roc_notify_destroy(dep, true);
2769 if (!mgmt_tx && roc->cookie != cookie)
2771 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2779 mutex_unlock(&local->mtx);
2784 * We found the item to cancel, so do that. Note that it
2785 * may have dependents, which we also cancel (and send
2786 * the expired signal for.) Not doing so would be quite
2787 * tricky here, but we may need to fix it later.
2790 if (local->ops->remain_on_channel) {
2791 if (found->started) {
2792 ret = drv_cancel_remain_on_channel(local);
2793 if (WARN_ON_ONCE(ret)) {
2794 mutex_unlock(&local->mtx);
2799 list_del(&found->list);
2802 ieee80211_start_next_roc(local);
2803 mutex_unlock(&local->mtx);
2805 ieee80211_roc_notify_destroy(found, true);
2807 /* work may be pending so use it all the time */
2808 found->abort = true;
2809 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2811 mutex_unlock(&local->mtx);
2813 /* work will clean up etc */
2814 flush_delayed_work(&found->work);
2815 WARN_ON(!found->to_be_freed);
2822 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2823 struct wireless_dev *wdev,
2826 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2827 struct ieee80211_local *local = sdata->local;
2829 return ieee80211_cancel_roc(local, cookie, false);
2832 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2833 struct net_device *dev,
2834 struct cfg80211_chan_def *chandef,
2837 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2838 struct ieee80211_local *local = sdata->local;
2841 mutex_lock(&local->mtx);
2842 if (!list_empty(&local->roc_list) || local->scanning) {
2847 /* whatever, but channel contexts should not complain about that one */
2848 sdata->smps_mode = IEEE80211_SMPS_OFF;
2849 sdata->needed_rx_chains = local->rx_chains;
2851 err = ieee80211_vif_use_channel(sdata, chandef,
2852 IEEE80211_CHANCTX_SHARED);
2856 ieee80211_queue_delayed_work(&sdata->local->hw,
2857 &sdata->dfs_cac_timer_work,
2858 msecs_to_jiffies(cac_time_ms));
2861 mutex_unlock(&local->mtx);
2865 static struct cfg80211_beacon_data *
2866 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2868 struct cfg80211_beacon_data *new_beacon;
2872 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2873 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2874 beacon->probe_resp_len;
2876 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2880 pos = (u8 *)(new_beacon + 1);
2881 if (beacon->head_len) {
2882 new_beacon->head_len = beacon->head_len;
2883 new_beacon->head = pos;
2884 memcpy(pos, beacon->head, beacon->head_len);
2885 pos += beacon->head_len;
2887 if (beacon->tail_len) {
2888 new_beacon->tail_len = beacon->tail_len;
2889 new_beacon->tail = pos;
2890 memcpy(pos, beacon->tail, beacon->tail_len);
2891 pos += beacon->tail_len;
2893 if (beacon->beacon_ies_len) {
2894 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2895 new_beacon->beacon_ies = pos;
2896 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2897 pos += beacon->beacon_ies_len;
2899 if (beacon->proberesp_ies_len) {
2900 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2901 new_beacon->proberesp_ies = pos;
2902 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2903 pos += beacon->proberesp_ies_len;
2905 if (beacon->assocresp_ies_len) {
2906 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2907 new_beacon->assocresp_ies = pos;
2908 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2909 pos += beacon->assocresp_ies_len;
2911 if (beacon->probe_resp_len) {
2912 new_beacon->probe_resp_len = beacon->probe_resp_len;
2913 beacon->probe_resp = pos;
2914 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2915 pos += beacon->probe_resp_len;
2921 void ieee80211_csa_finish(struct ieee80211_vif *vif)
2923 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
2925 ieee80211_queue_work(&sdata->local->hw,
2926 &sdata->csa_finalize_work);
2928 EXPORT_SYMBOL(ieee80211_csa_finish);
2930 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2935 switch (sdata->vif.type) {
2936 case NL80211_IFTYPE_AP:
2937 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2939 kfree(sdata->u.ap.next_beacon);
2940 sdata->u.ap.next_beacon = NULL;
2946 case NL80211_IFTYPE_ADHOC:
2947 err = ieee80211_ibss_finish_csa(sdata);
2952 #ifdef CONFIG_MAC80211_MESH
2953 case NL80211_IFTYPE_MESH_POINT:
2954 err = ieee80211_mesh_finish_csa(sdata);
2968 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2970 struct ieee80211_local *local = sdata->local;
2974 sdata_assert_lock(sdata);
2975 lockdep_assert_held(&local->mtx);
2976 lockdep_assert_held(&local->chanctx_mtx);
2979 * using reservation isn't immediate as it may be deferred until later
2980 * with multi-vif. once reservation is complete it will re-schedule the
2981 * work with no reserved_chanctx so verify chandef to check if it
2982 * completed successfully
2985 if (sdata->reserved_chanctx) {
2987 * with multi-vif csa driver may call ieee80211_csa_finish()
2988 * many times while waiting for other interfaces to use their
2991 if (sdata->reserved_ready)
2994 return ieee80211_vif_use_reserved_context(sdata);
2997 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2998 &sdata->csa_chandef))
3001 sdata->vif.csa_active = false;
3003 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3007 ieee80211_bss_info_change_notify(sdata, changed);
3009 if (sdata->csa_block_tx) {
3010 ieee80211_wake_vif_queues(local, sdata,
3011 IEEE80211_QUEUE_STOP_REASON_CSA);
3012 sdata->csa_block_tx = false;
3015 err = drv_post_channel_switch(sdata);
3019 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3024 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3026 if (__ieee80211_csa_finalize(sdata)) {
3027 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3028 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3033 void ieee80211_csa_finalize_work(struct work_struct *work)
3035 struct ieee80211_sub_if_data *sdata =
3036 container_of(work, struct ieee80211_sub_if_data,
3038 struct ieee80211_local *local = sdata->local;
3041 mutex_lock(&local->mtx);
3042 mutex_lock(&local->chanctx_mtx);
3044 /* AP might have been stopped while waiting for the lock. */
3045 if (!sdata->vif.csa_active)
3048 if (!ieee80211_sdata_running(sdata))
3051 ieee80211_csa_finalize(sdata);
3054 mutex_unlock(&local->chanctx_mtx);
3055 mutex_unlock(&local->mtx);
3056 sdata_unlock(sdata);
3059 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3060 struct cfg80211_csa_settings *params,
3063 struct ieee80211_csa_settings csa = {};
3066 switch (sdata->vif.type) {
3067 case NL80211_IFTYPE_AP:
3068 sdata->u.ap.next_beacon =
3069 cfg80211_beacon_dup(¶ms->beacon_after);
3070 if (!sdata->u.ap.next_beacon)
3074 * With a count of 0, we don't have to wait for any
3075 * TBTT before switching, so complete the CSA
3076 * immediately. In theory, with a count == 1 we
3077 * should delay the switch until just before the next
3078 * TBTT, but that would complicate things so we switch
3079 * immediately too. If we would delay the switch
3080 * until the next TBTT, we would have to set the probe
3083 * TODO: A channel switch with count <= 1 without
3084 * sending a CSA action frame is kind of useless,
3085 * because the clients won't know we're changing
3086 * channels. The action frame must be implemented
3087 * either here or in the userspace.
3089 if (params->count <= 1)
3092 if ((params->n_counter_offsets_beacon >
3093 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3094 (params->n_counter_offsets_presp >
3095 IEEE80211_MAX_CSA_COUNTERS_NUM))
3098 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3099 csa.counter_offsets_presp = params->counter_offsets_presp;
3100 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3101 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3102 csa.count = params->count;
3104 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa, &csa);
3106 kfree(sdata->u.ap.next_beacon);
3112 case NL80211_IFTYPE_ADHOC:
3113 if (!sdata->vif.bss_conf.ibss_joined)
3116 if (params->chandef.width != sdata->u.ibss.chandef.width)
3119 switch (params->chandef.width) {
3120 case NL80211_CHAN_WIDTH_40:
3121 if (cfg80211_get_chandef_type(¶ms->chandef) !=
3122 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3124 case NL80211_CHAN_WIDTH_5:
3125 case NL80211_CHAN_WIDTH_10:
3126 case NL80211_CHAN_WIDTH_20_NOHT:
3127 case NL80211_CHAN_WIDTH_20:
3133 /* changes into another band are not supported */
3134 if (sdata->u.ibss.chandef.chan->band !=
3135 params->chandef.chan->band)
3138 /* see comments in the NL80211_IFTYPE_AP block */
3139 if (params->count > 1) {
3140 err = ieee80211_ibss_csa_beacon(sdata, params);
3146 ieee80211_send_action_csa(sdata, params);
3149 #ifdef CONFIG_MAC80211_MESH
3150 case NL80211_IFTYPE_MESH_POINT: {
3151 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3153 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3156 /* changes into another band are not supported */
3157 if (sdata->vif.bss_conf.chandef.chan->band !=
3158 params->chandef.chan->band)
3161 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3162 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3163 if (!ifmsh->pre_value)
3164 ifmsh->pre_value = 1;
3169 /* see comments in the NL80211_IFTYPE_AP block */
3170 if (params->count > 1) {
3171 err = ieee80211_mesh_csa_beacon(sdata, params);
3173 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3179 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3180 ieee80211_send_action_csa(sdata, params);
3193 __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3194 struct cfg80211_csa_settings *params)
3196 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3197 struct ieee80211_local *local = sdata->local;
3198 struct ieee80211_channel_switch ch_switch;
3199 struct ieee80211_chanctx_conf *conf;
3200 struct ieee80211_chanctx *chanctx;
3204 sdata_assert_lock(sdata);
3205 lockdep_assert_held(&local->mtx);
3207 if (!list_empty(&local->roc_list) || local->scanning)
3210 if (sdata->wdev.cac_started)
3213 if (cfg80211_chandef_identical(¶ms->chandef,
3214 &sdata->vif.bss_conf.chandef))
3217 /* don't allow another channel switch if one is already active. */
3218 if (sdata->vif.csa_active)
3221 mutex_lock(&local->chanctx_mtx);
3222 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3223 lockdep_is_held(&local->chanctx_mtx));
3229 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3235 ch_switch.timestamp = 0;
3236 ch_switch.device_timestamp = 0;
3237 ch_switch.block_tx = params->block_tx;
3238 ch_switch.chandef = params->chandef;
3239 ch_switch.count = params->count;
3241 err = drv_pre_channel_switch(sdata, &ch_switch);
3245 err = ieee80211_vif_reserve_chanctx(sdata, ¶ms->chandef,
3247 params->radar_required);
3251 /* if reservation is invalid then this will fail */
3252 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3254 ieee80211_vif_unreserve_chanctx(sdata);
3258 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3260 ieee80211_vif_unreserve_chanctx(sdata);
3264 sdata->csa_chandef = params->chandef;
3265 sdata->csa_block_tx = params->block_tx;
3266 sdata->vif.csa_active = true;
3268 if (sdata->csa_block_tx)
3269 ieee80211_stop_vif_queues(local, sdata,
3270 IEEE80211_QUEUE_STOP_REASON_CSA);
3272 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3276 ieee80211_bss_info_change_notify(sdata, changed);
3277 drv_channel_switch_beacon(sdata, ¶ms->chandef);
3279 /* if the beacon didn't change, we can finalize immediately */
3280 ieee80211_csa_finalize(sdata);
3284 mutex_unlock(&local->chanctx_mtx);
3288 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3289 struct cfg80211_csa_settings *params)
3291 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3292 struct ieee80211_local *local = sdata->local;
3295 mutex_lock(&local->mtx);
3296 err = __ieee80211_channel_switch(wiphy, dev, params);
3297 mutex_unlock(&local->mtx);
3302 static struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local,
3303 struct sk_buff *skb, u64 *cookie,
3306 unsigned long spin_flags;
3307 struct sk_buff *ack_skb;
3310 ack_skb = skb_copy(skb, gfp);
3312 return ERR_PTR(-ENOMEM);
3314 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3315 id = idr_alloc(&local->ack_status_frames, ack_skb,
3316 1, 0x10000, GFP_ATOMIC);
3317 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3321 return ERR_PTR(-ENOMEM);
3324 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3326 *cookie = ieee80211_mgmt_tx_cookie(local);
3327 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3332 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3333 struct cfg80211_mgmt_tx_params *params,
3336 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3337 struct ieee80211_local *local = sdata->local;
3338 struct sk_buff *skb, *ack_skb;
3339 struct sta_info *sta;
3340 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3341 bool need_offchan = false;
3346 if (params->dont_wait_for_ack)
3347 flags = IEEE80211_TX_CTL_NO_ACK;
3349 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3350 IEEE80211_TX_CTL_REQ_TX_STATUS;
3353 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3355 switch (sdata->vif.type) {
3356 case NL80211_IFTYPE_ADHOC:
3357 if (!sdata->vif.bss_conf.ibss_joined)
3358 need_offchan = true;
3360 #ifdef CONFIG_MAC80211_MESH
3361 case NL80211_IFTYPE_MESH_POINT:
3362 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3363 !sdata->u.mesh.mesh_id_len)
3364 need_offchan = true;
3367 case NL80211_IFTYPE_AP:
3368 case NL80211_IFTYPE_AP_VLAN:
3369 case NL80211_IFTYPE_P2P_GO:
3370 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3371 !ieee80211_vif_is_mesh(&sdata->vif) &&
3372 !rcu_access_pointer(sdata->bss->beacon))
3373 need_offchan = true;
3374 if (!ieee80211_is_action(mgmt->frame_control) ||
3375 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3376 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3377 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3380 sta = sta_info_get(sdata, mgmt->da);
3385 case NL80211_IFTYPE_STATION:
3386 case NL80211_IFTYPE_P2P_CLIENT:
3388 if (!sdata->u.mgd.associated ||
3389 (params->offchan && params->wait &&
3390 local->ops->remain_on_channel &&
3391 memcmp(sdata->u.mgd.associated->bssid,
3392 mgmt->bssid, ETH_ALEN)))
3393 need_offchan = true;
3394 sdata_unlock(sdata);
3396 case NL80211_IFTYPE_P2P_DEVICE:
3397 need_offchan = true;
3403 /* configurations requiring offchan cannot work if no channel has been
3406 if (need_offchan && !params->chan)
3409 mutex_lock(&local->mtx);
3411 /* Check if the operating channel is the requested channel */
3412 if (!need_offchan) {
3413 struct ieee80211_chanctx_conf *chanctx_conf;
3416 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3419 need_offchan = params->chan &&
3421 chanctx_conf->def.chan);
3422 } else if (!params->chan) {
3427 need_offchan = true;
3432 if (need_offchan && !params->offchan) {
3437 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3442 skb_reserve(skb, local->hw.extra_tx_headroom);
3444 data = skb_put(skb, params->len);
3445 memcpy(data, params->buf, params->len);
3447 /* Update CSA counters */
3448 if (sdata->vif.csa_active &&
3449 (sdata->vif.type == NL80211_IFTYPE_AP ||
3450 sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
3451 sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3452 params->n_csa_offsets) {
3454 struct beacon_data *beacon = NULL;
3458 if (sdata->vif.type == NL80211_IFTYPE_AP)
3459 beacon = rcu_dereference(sdata->u.ap.beacon);
3460 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3461 beacon = rcu_dereference(sdata->u.ibss.presp);
3462 else if (ieee80211_vif_is_mesh(&sdata->vif))
3463 beacon = rcu_dereference(sdata->u.mesh.beacon);
3466 for (i = 0; i < params->n_csa_offsets; i++)
3467 data[params->csa_offsets[i]] =
3468 beacon->csa_current_counter;
3473 IEEE80211_SKB_CB(skb)->flags = flags;
3475 skb->dev = sdata->dev;
3477 if (!params->dont_wait_for_ack) {
3478 /* make a copy to preserve the frame contents
3479 * in case of encryption.
3481 ack_skb = ieee80211_make_ack_skb(local, skb, cookie,
3483 if (IS_ERR(ack_skb)) {
3484 ret = PTR_ERR(ack_skb);
3489 /* for cookie below */
3493 if (!need_offchan) {
3494 ieee80211_tx_skb(sdata, skb);
3499 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3500 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3501 if (ieee80211_hw_check(&local->hw, QUEUE_CONTROL))
3502 IEEE80211_SKB_CB(skb)->hw_queue =
3503 local->hw.offchannel_tx_hw_queue;
3505 /* This will handle all kinds of coalescing and immediate TX */
3506 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3507 params->wait, cookie, skb,
3508 IEEE80211_ROC_TYPE_MGMT_TX);
3512 mutex_unlock(&local->mtx);
3516 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3517 struct wireless_dev *wdev,
3520 struct ieee80211_local *local = wiphy_priv(wiphy);
3522 return ieee80211_cancel_roc(local, cookie, true);
3525 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3526 struct wireless_dev *wdev,
3527 u16 frame_type, bool reg)
3529 struct ieee80211_local *local = wiphy_priv(wiphy);
3530 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3532 switch (frame_type) {
3533 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3535 local->probe_req_reg++;
3536 sdata->vif.probe_req_reg++;
3538 if (local->probe_req_reg)
3539 local->probe_req_reg--;
3541 if (sdata->vif.probe_req_reg)
3542 sdata->vif.probe_req_reg--;
3545 if (!local->open_count)
3548 if (sdata->vif.probe_req_reg == 1)
3549 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3551 else if (sdata->vif.probe_req_reg == 0)
3552 drv_config_iface_filter(local, sdata, 0,
3555 ieee80211_configure_filter(local);
3562 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3564 struct ieee80211_local *local = wiphy_priv(wiphy);
3569 return drv_set_antenna(local, tx_ant, rx_ant);
3572 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3574 struct ieee80211_local *local = wiphy_priv(wiphy);
3576 return drv_get_antenna(local, tx_ant, rx_ant);
3579 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3580 struct net_device *dev,
3581 struct cfg80211_gtk_rekey_data *data)
3583 struct ieee80211_local *local = wiphy_priv(wiphy);
3584 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3586 if (!local->ops->set_rekey_data)
3589 drv_set_rekey_data(local, sdata, data);
3594 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3595 const u8 *peer, u64 *cookie)
3597 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3598 struct ieee80211_local *local = sdata->local;
3599 struct ieee80211_qos_hdr *nullfunc;
3600 struct sk_buff *skb, *ack_skb;
3601 int size = sizeof(*nullfunc);
3604 struct ieee80211_tx_info *info;
3605 struct sta_info *sta;
3606 struct ieee80211_chanctx_conf *chanctx_conf;
3607 enum ieee80211_band band;
3610 /* the lock is needed to assign the cookie later */
3611 mutex_lock(&local->mtx);
3614 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3615 if (WARN_ON(!chanctx_conf)) {
3619 band = chanctx_conf->def.chan->band;
3620 sta = sta_info_get_bss(sdata, peer);
3629 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3630 IEEE80211_STYPE_QOS_NULLFUNC |
3631 IEEE80211_FCTL_FROMDS);
3634 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3635 IEEE80211_STYPE_NULLFUNC |
3636 IEEE80211_FCTL_FROMDS);
3639 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3647 skb_reserve(skb, local->hw.extra_tx_headroom);
3649 nullfunc = (void *) skb_put(skb, size);
3650 nullfunc->frame_control = fc;
3651 nullfunc->duration_id = 0;
3652 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3653 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3654 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3655 nullfunc->seq_ctrl = 0;
3657 info = IEEE80211_SKB_CB(skb);
3659 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3660 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3663 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3666 nullfunc->qos_ctrl = cpu_to_le16(7);
3668 ack_skb = ieee80211_make_ack_skb(local, skb, cookie, GFP_ATOMIC);
3669 if (IS_ERR(ack_skb)) {
3671 ret = PTR_ERR(ack_skb);
3676 ieee80211_xmit(sdata, sta, skb);
3682 mutex_unlock(&local->mtx);
3687 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3688 struct wireless_dev *wdev,
3689 struct cfg80211_chan_def *chandef)
3691 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3692 struct ieee80211_local *local = wiphy_priv(wiphy);
3693 struct ieee80211_chanctx_conf *chanctx_conf;
3697 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3699 *chandef = sdata->vif.bss_conf.chandef;
3701 } else if (local->open_count > 0 &&
3702 local->open_count == local->monitors &&
3703 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3704 if (local->use_chanctx)
3705 *chandef = local->monitor_chandef;
3707 *chandef = local->_oper_chandef;
3716 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3718 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3722 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3723 struct net_device *dev,
3724 struct cfg80211_qos_map *qos_map)
3726 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3727 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3730 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3733 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3735 /* A NULL qos_map was passed to disable QoS mapping */
3739 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3740 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3742 kfree_rcu(old_qos_map, rcu_head);
3747 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3748 struct net_device *dev,
3749 struct cfg80211_chan_def *chandef)
3751 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3755 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3757 ieee80211_bss_info_change_notify(sdata, changed);
3762 static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3763 u8 tsid, const u8 *peer, u8 up,
3766 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3767 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3768 int ac = ieee802_1d_to_ac[up];
3770 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3773 if (!(sdata->wmm_acm & BIT(up)))
3776 if (ifmgd->tx_tspec[ac].admitted_time)
3779 if (admitted_time) {
3780 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3781 ifmgd->tx_tspec[ac].tsid = tsid;
3782 ifmgd->tx_tspec[ac].up = up;
3788 static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3789 u8 tsid, const u8 *peer)
3791 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3792 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3793 struct ieee80211_local *local = wiphy_priv(wiphy);
3796 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3797 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3799 /* skip unused entries */
3800 if (!tx_tspec->admitted_time)
3803 if (tx_tspec->tsid != tsid)
3806 /* due to this new packets will be reassigned to non-ACM ACs */
3809 /* Make sure that all packets have been sent to avoid to
3810 * restore the QoS params on packets that are still on the
3814 ieee80211_flush_queues(local, sdata, false);
3816 /* restore the normal QoS parameters
3817 * (unconditionally to avoid races)
3819 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3820 tx_tspec->downgraded = false;
3821 ieee80211_sta_handle_tspec_ac_params(sdata);
3823 /* finally clear all the data */
3824 memset(tx_tspec, 0, sizeof(*tx_tspec));
3832 const struct cfg80211_ops mac80211_config_ops = {
3833 .add_virtual_intf = ieee80211_add_iface,
3834 .del_virtual_intf = ieee80211_del_iface,
3835 .change_virtual_intf = ieee80211_change_iface,
3836 .start_p2p_device = ieee80211_start_p2p_device,
3837 .stop_p2p_device = ieee80211_stop_p2p_device,
3838 .add_key = ieee80211_add_key,
3839 .del_key = ieee80211_del_key,
3840 .get_key = ieee80211_get_key,
3841 .set_default_key = ieee80211_config_default_key,
3842 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3843 .start_ap = ieee80211_start_ap,
3844 .change_beacon = ieee80211_change_beacon,
3845 .stop_ap = ieee80211_stop_ap,
3846 .add_station = ieee80211_add_station,
3847 .del_station = ieee80211_del_station,
3848 .change_station = ieee80211_change_station,
3849 .get_station = ieee80211_get_station,
3850 .dump_station = ieee80211_dump_station,
3851 .dump_survey = ieee80211_dump_survey,
3852 #ifdef CONFIG_MAC80211_MESH
3853 .add_mpath = ieee80211_add_mpath,
3854 .del_mpath = ieee80211_del_mpath,
3855 .change_mpath = ieee80211_change_mpath,
3856 .get_mpath = ieee80211_get_mpath,
3857 .dump_mpath = ieee80211_dump_mpath,
3858 .get_mpp = ieee80211_get_mpp,
3859 .dump_mpp = ieee80211_dump_mpp,
3860 .update_mesh_config = ieee80211_update_mesh_config,
3861 .get_mesh_config = ieee80211_get_mesh_config,
3862 .join_mesh = ieee80211_join_mesh,
3863 .leave_mesh = ieee80211_leave_mesh,
3865 .join_ocb = ieee80211_join_ocb,
3866 .leave_ocb = ieee80211_leave_ocb,
3867 .change_bss = ieee80211_change_bss,
3868 .set_txq_params = ieee80211_set_txq_params,
3869 .set_monitor_channel = ieee80211_set_monitor_channel,
3870 .suspend = ieee80211_suspend,
3871 .resume = ieee80211_resume,
3872 .scan = ieee80211_scan,
3873 .sched_scan_start = ieee80211_sched_scan_start,
3874 .sched_scan_stop = ieee80211_sched_scan_stop,
3875 .auth = ieee80211_auth,
3876 .assoc = ieee80211_assoc,
3877 .deauth = ieee80211_deauth,
3878 .disassoc = ieee80211_disassoc,
3879 .join_ibss = ieee80211_join_ibss,
3880 .leave_ibss = ieee80211_leave_ibss,
3881 .set_mcast_rate = ieee80211_set_mcast_rate,
3882 .set_wiphy_params = ieee80211_set_wiphy_params,
3883 .set_tx_power = ieee80211_set_tx_power,
3884 .get_tx_power = ieee80211_get_tx_power,
3885 .set_wds_peer = ieee80211_set_wds_peer,
3886 .rfkill_poll = ieee80211_rfkill_poll,
3887 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3888 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3889 .set_power_mgmt = ieee80211_set_power_mgmt,
3890 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3891 .remain_on_channel = ieee80211_remain_on_channel,
3892 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3893 .mgmt_tx = ieee80211_mgmt_tx,
3894 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3895 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3896 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3897 .set_antenna = ieee80211_set_antenna,
3898 .get_antenna = ieee80211_get_antenna,
3899 .set_rekey_data = ieee80211_set_rekey_data,
3900 .tdls_oper = ieee80211_tdls_oper,
3901 .tdls_mgmt = ieee80211_tdls_mgmt,
3902 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3903 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
3904 .probe_client = ieee80211_probe_client,
3905 .set_noack_map = ieee80211_set_noack_map,
3907 .set_wakeup = ieee80211_set_wakeup,
3909 .get_channel = ieee80211_cfg_get_channel,
3910 .start_radar_detection = ieee80211_start_radar_detection,
3911 .channel_switch = ieee80211_channel_switch,
3912 .set_qos_map = ieee80211_set_qos_map,
3913 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3914 .add_tx_ts = ieee80211_add_tx_ts,
3915 .del_tx_ts = ieee80211_del_tx_ts,