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_TDLS_PEER
))
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 stations */
1124 if (!test_sta_flag(sta
, WLAN_STA_TDLS_PEER
)) {
1125 ret
= sta_apply_auth_flags(local
, sta
, mask
, set
);
1130 if (mask
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
)) {
1131 if (set
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
))
1132 set_sta_flag(sta
, WLAN_STA_SHORT_PREAMBLE
);
1134 clear_sta_flag(sta
, WLAN_STA_SHORT_PREAMBLE
);
1137 if (mask
& BIT(NL80211_STA_FLAG_MFP
)) {
1138 if (set
& BIT(NL80211_STA_FLAG_MFP
))
1139 set_sta_flag(sta
, WLAN_STA_MFP
);
1141 clear_sta_flag(sta
, WLAN_STA_MFP
);
1144 if (mask
& BIT(NL80211_STA_FLAG_TDLS_PEER
)) {
1145 if (set
& BIT(NL80211_STA_FLAG_TDLS_PEER
))
1146 set_sta_flag(sta
, WLAN_STA_TDLS_PEER
);
1148 clear_sta_flag(sta
, WLAN_STA_TDLS_PEER
);
1151 /* mark TDLS channel switch support, if the AP allows it */
1152 if (test_sta_flag(sta
, WLAN_STA_TDLS_PEER
) &&
1153 !sdata
->u
.mgd
.tdls_chan_switch_prohibited
&&
1154 params
->ext_capab_len
>= 4 &&
1155 params
->ext_capab
[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH
)
1156 set_sta_flag(sta
, WLAN_STA_TDLS_CHAN_SWITCH
);
1158 if (test_sta_flag(sta
, WLAN_STA_TDLS_PEER
) &&
1159 ieee80211_hw_check(&local
->hw
, TDLS_WIDER_BW
) &&
1160 params
->ext_capab_len
>= 8 &&
1161 params
->ext_capab
[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED
)
1162 set_sta_flag(sta
, WLAN_STA_TDLS_WIDER_BW
);
1164 if (params
->sta_modify_mask
& STATION_PARAM_APPLY_UAPSD
) {
1165 sta
->sta
.uapsd_queues
= params
->uapsd_queues
;
1166 sta
->sta
.max_sp
= params
->max_sp
;
1170 * cfg80211 validates this (1-2007) and allows setting the AID
1171 * only when creating a new station entry
1174 sta
->sta
.aid
= params
->aid
;
1177 * Some of the following updates would be racy if called on an
1178 * existing station, via ieee80211_change_station(). However,
1179 * all such changes are rejected by cfg80211 except for updates
1180 * changing the supported rates on an existing but not yet used
1184 if (params
->listen_interval
>= 0)
1185 sta
->listen_interval
= params
->listen_interval
;
1187 if (params
->supported_rates
) {
1188 ieee80211_parse_bitrates(&sdata
->vif
.bss_conf
.chandef
,
1189 sband
, params
->supported_rates
,
1190 params
->supported_rates_len
,
1191 &sta
->sta
.supp_rates
[band
]);
1194 if (params
->ht_capa
)
1195 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata
, sband
,
1196 params
->ht_capa
, sta
);
1198 if (params
->vht_capa
)
1199 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata
, sband
,
1200 params
->vht_capa
, sta
);
1202 if (params
->opmode_notif_used
) {
1203 /* returned value is only needed for rc update, but the
1204 * rc isn't initialized here yet, so ignore it
1206 __ieee80211_vht_handle_opmode(sdata
, sta
,
1207 params
->opmode_notif
,
1211 if (ieee80211_vif_is_mesh(&sdata
->vif
))
1212 sta_apply_mesh_params(local
, sta
, params
);
1214 /* set the STA state after all sta info from usermode has been set */
1215 if (test_sta_flag(sta
, WLAN_STA_TDLS_PEER
)) {
1216 ret
= sta_apply_auth_flags(local
, sta
, mask
, set
);
1224 static int ieee80211_add_station(struct wiphy
*wiphy
, struct net_device
*dev
,
1226 struct station_parameters
*params
)
1228 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
1229 struct sta_info
*sta
;
1230 struct ieee80211_sub_if_data
*sdata
;
1235 sdata
= IEEE80211_DEV_TO_SUB_IF(params
->vlan
);
1237 if (sdata
->vif
.type
!= NL80211_IFTYPE_AP_VLAN
&&
1238 sdata
->vif
.type
!= NL80211_IFTYPE_AP
)
1241 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1243 if (ether_addr_equal(mac
, sdata
->vif
.addr
))
1246 if (is_multicast_ether_addr(mac
))
1249 sta
= sta_info_alloc(sdata
, mac
, GFP_KERNEL
);
1254 * defaults -- if userspace wants something else we'll
1255 * change it accordingly in sta_apply_parameters()
1257 if (!(params
->sta_flags_set
& BIT(NL80211_STA_FLAG_TDLS_PEER
))) {
1258 sta_info_pre_move_state(sta
, IEEE80211_STA_AUTH
);
1259 sta_info_pre_move_state(sta
, IEEE80211_STA_ASSOC
);
1261 sta
->sta
.tdls
= true;
1264 err
= sta_apply_parameters(local
, sta
, params
);
1266 sta_info_free(local
, sta
);
1271 * for TDLS, rate control should be initialized only when
1272 * rates are known and station is marked authorized
1274 if (!test_sta_flag(sta
, WLAN_STA_TDLS_PEER
))
1275 rate_control_rate_init(sta
);
1277 layer2_update
= sdata
->vif
.type
== NL80211_IFTYPE_AP_VLAN
||
1278 sdata
->vif
.type
== NL80211_IFTYPE_AP
;
1280 err
= sta_info_insert_rcu(sta
);
1287 ieee80211_send_layer2_update(sta
);
1294 static int ieee80211_del_station(struct wiphy
*wiphy
, struct net_device
*dev
,
1295 struct station_del_parameters
*params
)
1297 struct ieee80211_sub_if_data
*sdata
;
1299 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1302 return sta_info_destroy_addr_bss(sdata
, params
->mac
);
1304 sta_info_flush(sdata
);
1308 static int ieee80211_change_station(struct wiphy
*wiphy
,
1309 struct net_device
*dev
, const u8
*mac
,
1310 struct station_parameters
*params
)
1312 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1313 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
1314 struct sta_info
*sta
;
1315 struct ieee80211_sub_if_data
*vlansdata
;
1316 enum cfg80211_station_type statype
;
1319 mutex_lock(&local
->sta_mtx
);
1321 sta
= sta_info_get_bss(sdata
, mac
);
1327 switch (sdata
->vif
.type
) {
1328 case NL80211_IFTYPE_MESH_POINT
:
1329 if (sdata
->u
.mesh
.user_mpm
)
1330 statype
= CFG80211_STA_MESH_PEER_USER
;
1332 statype
= CFG80211_STA_MESH_PEER_KERNEL
;
1334 case NL80211_IFTYPE_ADHOC
:
1335 statype
= CFG80211_STA_IBSS
;
1337 case NL80211_IFTYPE_STATION
:
1338 if (!test_sta_flag(sta
, WLAN_STA_TDLS_PEER
)) {
1339 statype
= CFG80211_STA_AP_STA
;
1342 if (test_sta_flag(sta
, WLAN_STA_AUTHORIZED
))
1343 statype
= CFG80211_STA_TDLS_PEER_ACTIVE
;
1345 statype
= CFG80211_STA_TDLS_PEER_SETUP
;
1347 case NL80211_IFTYPE_AP
:
1348 case NL80211_IFTYPE_AP_VLAN
:
1349 statype
= CFG80211_STA_AP_CLIENT
;
1356 err
= cfg80211_check_station_change(wiphy
, params
, statype
);
1360 if (params
->vlan
&& params
->vlan
!= sta
->sdata
->dev
) {
1361 bool prev_4addr
= false;
1362 bool new_4addr
= false;
1364 vlansdata
= IEEE80211_DEV_TO_SUB_IF(params
->vlan
);
1366 if (params
->vlan
->ieee80211_ptr
->use_4addr
) {
1367 if (vlansdata
->u
.vlan
.sta
) {
1372 rcu_assign_pointer(vlansdata
->u
.vlan
.sta
, sta
);
1376 if (sta
->sdata
->vif
.type
== NL80211_IFTYPE_AP_VLAN
&&
1377 sta
->sdata
->u
.vlan
.sta
) {
1378 RCU_INIT_POINTER(sta
->sdata
->u
.vlan
.sta
, NULL
);
1382 sta
->sdata
= vlansdata
;
1383 ieee80211_check_fast_xmit(sta
);
1385 if (sta
->sta_state
== IEEE80211_STA_AUTHORIZED
&&
1386 prev_4addr
!= new_4addr
) {
1388 atomic_dec(&sta
->sdata
->bss
->num_mcast_sta
);
1390 atomic_inc(&sta
->sdata
->bss
->num_mcast_sta
);
1393 ieee80211_send_layer2_update(sta
);
1396 err
= sta_apply_parameters(local
, sta
, params
);
1400 mutex_unlock(&local
->sta_mtx
);
1402 if ((sdata
->vif
.type
== NL80211_IFTYPE_AP
||
1403 sdata
->vif
.type
== NL80211_IFTYPE_AP_VLAN
) &&
1404 sta
->known_smps_mode
!= sta
->sdata
->bss
->req_smps
&&
1405 test_sta_flag(sta
, WLAN_STA_AUTHORIZED
) &&
1406 sta_info_tx_streams(sta
) != 1) {
1408 "%pM just authorized and MIMO capable - update SMPS\n",
1410 ieee80211_send_smps_action(sta
->sdata
,
1411 sta
->sdata
->bss
->req_smps
,
1413 sta
->sdata
->vif
.bss_conf
.bssid
);
1416 if (sdata
->vif
.type
== NL80211_IFTYPE_STATION
&&
1417 params
->sta_flags_mask
& BIT(NL80211_STA_FLAG_AUTHORIZED
)) {
1418 ieee80211_recalc_ps(local
, -1);
1419 ieee80211_recalc_ps_vif(sdata
);
1424 mutex_unlock(&local
->sta_mtx
);
1428 #ifdef CONFIG_MAC80211_MESH
1429 static int ieee80211_add_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1430 const u8
*dst
, const u8
*next_hop
)
1432 struct ieee80211_sub_if_data
*sdata
;
1433 struct mesh_path
*mpath
;
1434 struct sta_info
*sta
;
1436 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1439 sta
= sta_info_get(sdata
, next_hop
);
1445 mpath
= mesh_path_add(sdata
, dst
);
1446 if (IS_ERR(mpath
)) {
1448 return PTR_ERR(mpath
);
1451 mesh_path_fix_nexthop(mpath
, sta
);
1457 static int ieee80211_del_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1460 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1463 return mesh_path_del(sdata
, dst
);
1465 mesh_path_flush_by_iface(sdata
);
1469 static int ieee80211_change_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1470 const u8
*dst
, const u8
*next_hop
)
1472 struct ieee80211_sub_if_data
*sdata
;
1473 struct mesh_path
*mpath
;
1474 struct sta_info
*sta
;
1476 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1480 sta
= sta_info_get(sdata
, next_hop
);
1486 mpath
= mesh_path_lookup(sdata
, dst
);
1492 mesh_path_fix_nexthop(mpath
, sta
);
1498 static void mpath_set_pinfo(struct mesh_path
*mpath
, u8
*next_hop
,
1499 struct mpath_info
*pinfo
)
1501 struct sta_info
*next_hop_sta
= rcu_dereference(mpath
->next_hop
);
1504 memcpy(next_hop
, next_hop_sta
->sta
.addr
, ETH_ALEN
);
1506 eth_zero_addr(next_hop
);
1508 memset(pinfo
, 0, sizeof(*pinfo
));
1510 pinfo
->generation
= mesh_paths_generation
;
1512 pinfo
->filled
= MPATH_INFO_FRAME_QLEN
|
1515 MPATH_INFO_EXPTIME
|
1516 MPATH_INFO_DISCOVERY_TIMEOUT
|
1517 MPATH_INFO_DISCOVERY_RETRIES
|
1520 pinfo
->frame_qlen
= mpath
->frame_queue
.qlen
;
1521 pinfo
->sn
= mpath
->sn
;
1522 pinfo
->metric
= mpath
->metric
;
1523 if (time_before(jiffies
, mpath
->exp_time
))
1524 pinfo
->exptime
= jiffies_to_msecs(mpath
->exp_time
- jiffies
);
1525 pinfo
->discovery_timeout
=
1526 jiffies_to_msecs(mpath
->discovery_timeout
);
1527 pinfo
->discovery_retries
= mpath
->discovery_retries
;
1528 if (mpath
->flags
& MESH_PATH_ACTIVE
)
1529 pinfo
->flags
|= NL80211_MPATH_FLAG_ACTIVE
;
1530 if (mpath
->flags
& MESH_PATH_RESOLVING
)
1531 pinfo
->flags
|= NL80211_MPATH_FLAG_RESOLVING
;
1532 if (mpath
->flags
& MESH_PATH_SN_VALID
)
1533 pinfo
->flags
|= NL80211_MPATH_FLAG_SN_VALID
;
1534 if (mpath
->flags
& MESH_PATH_FIXED
)
1535 pinfo
->flags
|= NL80211_MPATH_FLAG_FIXED
;
1536 if (mpath
->flags
& MESH_PATH_RESOLVED
)
1537 pinfo
->flags
|= NL80211_MPATH_FLAG_RESOLVED
;
1540 static int ieee80211_get_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1541 u8
*dst
, u8
*next_hop
, struct mpath_info
*pinfo
)
1544 struct ieee80211_sub_if_data
*sdata
;
1545 struct mesh_path
*mpath
;
1547 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1550 mpath
= mesh_path_lookup(sdata
, dst
);
1555 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1556 mpath_set_pinfo(mpath
, next_hop
, pinfo
);
1561 static int ieee80211_dump_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1562 int idx
, u8
*dst
, u8
*next_hop
,
1563 struct mpath_info
*pinfo
)
1565 struct ieee80211_sub_if_data
*sdata
;
1566 struct mesh_path
*mpath
;
1568 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1571 mpath
= mesh_path_lookup_by_idx(sdata
, idx
);
1576 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1577 mpath_set_pinfo(mpath
, next_hop
, pinfo
);
1582 static void mpp_set_pinfo(struct mesh_path
*mpath
, u8
*mpp
,
1583 struct mpath_info
*pinfo
)
1585 memset(pinfo
, 0, sizeof(*pinfo
));
1586 memcpy(mpp
, mpath
->mpp
, ETH_ALEN
);
1588 pinfo
->generation
= mpp_paths_generation
;
1591 static int ieee80211_get_mpp(struct wiphy
*wiphy
, struct net_device
*dev
,
1592 u8
*dst
, u8
*mpp
, struct mpath_info
*pinfo
)
1595 struct ieee80211_sub_if_data
*sdata
;
1596 struct mesh_path
*mpath
;
1598 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1601 mpath
= mpp_path_lookup(sdata
, dst
);
1606 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1607 mpp_set_pinfo(mpath
, mpp
, pinfo
);
1612 static int ieee80211_dump_mpp(struct wiphy
*wiphy
, struct net_device
*dev
,
1613 int idx
, u8
*dst
, u8
*mpp
,
1614 struct mpath_info
*pinfo
)
1616 struct ieee80211_sub_if_data
*sdata
;
1617 struct mesh_path
*mpath
;
1619 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1622 mpath
= mpp_path_lookup_by_idx(sdata
, idx
);
1627 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1628 mpp_set_pinfo(mpath
, mpp
, pinfo
);
1633 static int ieee80211_get_mesh_config(struct wiphy
*wiphy
,
1634 struct net_device
*dev
,
1635 struct mesh_config
*conf
)
1637 struct ieee80211_sub_if_data
*sdata
;
1638 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1640 memcpy(conf
, &(sdata
->u
.mesh
.mshcfg
), sizeof(struct mesh_config
));
1644 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm
, u32 mask
)
1646 return (mask
>> (parm
-1)) & 0x1;
1649 static int copy_mesh_setup(struct ieee80211_if_mesh
*ifmsh
,
1650 const struct mesh_setup
*setup
)
1654 struct ieee80211_sub_if_data
*sdata
= container_of(ifmsh
,
1655 struct ieee80211_sub_if_data
, u
.mesh
);
1657 /* allocate information elements */
1661 if (setup
->ie_len
) {
1662 new_ie
= kmemdup(setup
->ie
, setup
->ie_len
,
1667 ifmsh
->ie_len
= setup
->ie_len
;
1671 /* now copy the rest of the setup parameters */
1672 ifmsh
->mesh_id_len
= setup
->mesh_id_len
;
1673 memcpy(ifmsh
->mesh_id
, setup
->mesh_id
, ifmsh
->mesh_id_len
);
1674 ifmsh
->mesh_sp_id
= setup
->sync_method
;
1675 ifmsh
->mesh_pp_id
= setup
->path_sel_proto
;
1676 ifmsh
->mesh_pm_id
= setup
->path_metric
;
1677 ifmsh
->user_mpm
= setup
->user_mpm
;
1678 ifmsh
->mesh_auth_id
= setup
->auth_id
;
1679 ifmsh
->security
= IEEE80211_MESH_SEC_NONE
;
1680 if (setup
->is_authenticated
)
1681 ifmsh
->security
|= IEEE80211_MESH_SEC_AUTHED
;
1682 if (setup
->is_secure
)
1683 ifmsh
->security
|= IEEE80211_MESH_SEC_SECURED
;
1685 /* mcast rate setting in Mesh Node */
1686 memcpy(sdata
->vif
.bss_conf
.mcast_rate
, setup
->mcast_rate
,
1687 sizeof(setup
->mcast_rate
));
1688 sdata
->vif
.bss_conf
.basic_rates
= setup
->basic_rates
;
1690 sdata
->vif
.bss_conf
.beacon_int
= setup
->beacon_interval
;
1691 sdata
->vif
.bss_conf
.dtim_period
= setup
->dtim_period
;
1696 static int ieee80211_update_mesh_config(struct wiphy
*wiphy
,
1697 struct net_device
*dev
, u32 mask
,
1698 const struct mesh_config
*nconf
)
1700 struct mesh_config
*conf
;
1701 struct ieee80211_sub_if_data
*sdata
;
1702 struct ieee80211_if_mesh
*ifmsh
;
1704 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1705 ifmsh
= &sdata
->u
.mesh
;
1707 /* Set the config options which we are interested in setting */
1708 conf
= &(sdata
->u
.mesh
.mshcfg
);
1709 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT
, mask
))
1710 conf
->dot11MeshRetryTimeout
= nconf
->dot11MeshRetryTimeout
;
1711 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT
, mask
))
1712 conf
->dot11MeshConfirmTimeout
= nconf
->dot11MeshConfirmTimeout
;
1713 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT
, mask
))
1714 conf
->dot11MeshHoldingTimeout
= nconf
->dot11MeshHoldingTimeout
;
1715 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS
, mask
))
1716 conf
->dot11MeshMaxPeerLinks
= nconf
->dot11MeshMaxPeerLinks
;
1717 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES
, mask
))
1718 conf
->dot11MeshMaxRetries
= nconf
->dot11MeshMaxRetries
;
1719 if (_chg_mesh_attr(NL80211_MESHCONF_TTL
, mask
))
1720 conf
->dot11MeshTTL
= nconf
->dot11MeshTTL
;
1721 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL
, mask
))
1722 conf
->element_ttl
= nconf
->element_ttl
;
1723 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS
, mask
)) {
1724 if (ifmsh
->user_mpm
)
1726 conf
->auto_open_plinks
= nconf
->auto_open_plinks
;
1728 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR
, mask
))
1729 conf
->dot11MeshNbrOffsetMaxNeighbor
=
1730 nconf
->dot11MeshNbrOffsetMaxNeighbor
;
1731 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES
, mask
))
1732 conf
->dot11MeshHWMPmaxPREQretries
=
1733 nconf
->dot11MeshHWMPmaxPREQretries
;
1734 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME
, mask
))
1735 conf
->path_refresh_time
= nconf
->path_refresh_time
;
1736 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT
, mask
))
1737 conf
->min_discovery_timeout
= nconf
->min_discovery_timeout
;
1738 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT
, mask
))
1739 conf
->dot11MeshHWMPactivePathTimeout
=
1740 nconf
->dot11MeshHWMPactivePathTimeout
;
1741 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL
, mask
))
1742 conf
->dot11MeshHWMPpreqMinInterval
=
1743 nconf
->dot11MeshHWMPpreqMinInterval
;
1744 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL
, mask
))
1745 conf
->dot11MeshHWMPperrMinInterval
=
1746 nconf
->dot11MeshHWMPperrMinInterval
;
1747 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME
,
1749 conf
->dot11MeshHWMPnetDiameterTraversalTime
=
1750 nconf
->dot11MeshHWMPnetDiameterTraversalTime
;
1751 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE
, mask
)) {
1752 conf
->dot11MeshHWMPRootMode
= nconf
->dot11MeshHWMPRootMode
;
1753 ieee80211_mesh_root_setup(ifmsh
);
1755 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS
, mask
)) {
1756 /* our current gate announcement implementation rides on root
1757 * announcements, so require this ifmsh to also be a root node
1759 if (nconf
->dot11MeshGateAnnouncementProtocol
&&
1760 !(conf
->dot11MeshHWMPRootMode
> IEEE80211_ROOTMODE_ROOT
)) {
1761 conf
->dot11MeshHWMPRootMode
= IEEE80211_PROACTIVE_RANN
;
1762 ieee80211_mesh_root_setup(ifmsh
);
1764 conf
->dot11MeshGateAnnouncementProtocol
=
1765 nconf
->dot11MeshGateAnnouncementProtocol
;
1767 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL
, mask
))
1768 conf
->dot11MeshHWMPRannInterval
=
1769 nconf
->dot11MeshHWMPRannInterval
;
1770 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING
, mask
))
1771 conf
->dot11MeshForwarding
= nconf
->dot11MeshForwarding
;
1772 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD
, mask
)) {
1773 /* our RSSI threshold implementation is supported only for
1774 * devices that report signal in dBm.
1776 if (!ieee80211_hw_check(&sdata
->local
->hw
, SIGNAL_DBM
))
1778 conf
->rssi_threshold
= nconf
->rssi_threshold
;
1780 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE
, mask
)) {
1781 conf
->ht_opmode
= nconf
->ht_opmode
;
1782 sdata
->vif
.bss_conf
.ht_operation_mode
= nconf
->ht_opmode
;
1783 ieee80211_bss_info_change_notify(sdata
, BSS_CHANGED_HT
);
1785 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT
, mask
))
1786 conf
->dot11MeshHWMPactivePathToRootTimeout
=
1787 nconf
->dot11MeshHWMPactivePathToRootTimeout
;
1788 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL
, mask
))
1789 conf
->dot11MeshHWMProotInterval
=
1790 nconf
->dot11MeshHWMProotInterval
;
1791 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL
, mask
))
1792 conf
->dot11MeshHWMPconfirmationInterval
=
1793 nconf
->dot11MeshHWMPconfirmationInterval
;
1794 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE
, mask
)) {
1795 conf
->power_mode
= nconf
->power_mode
;
1796 ieee80211_mps_local_status_update(sdata
);
1798 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW
, mask
))
1799 conf
->dot11MeshAwakeWindowDuration
=
1800 nconf
->dot11MeshAwakeWindowDuration
;
1801 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT
, mask
))
1802 conf
->plink_timeout
= nconf
->plink_timeout
;
1803 ieee80211_mbss_info_change_notify(sdata
, BSS_CHANGED_BEACON
);
1807 static int ieee80211_join_mesh(struct wiphy
*wiphy
, struct net_device
*dev
,
1808 const struct mesh_config
*conf
,
1809 const struct mesh_setup
*setup
)
1811 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1812 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
1815 memcpy(&ifmsh
->mshcfg
, conf
, sizeof(struct mesh_config
));
1816 err
= copy_mesh_setup(ifmsh
, setup
);
1820 /* can mesh use other SMPS modes? */
1821 sdata
->smps_mode
= IEEE80211_SMPS_OFF
;
1822 sdata
->needed_rx_chains
= sdata
->local
->rx_chains
;
1824 mutex_lock(&sdata
->local
->mtx
);
1825 err
= ieee80211_vif_use_channel(sdata
, &setup
->chandef
,
1826 IEEE80211_CHANCTX_SHARED
);
1827 mutex_unlock(&sdata
->local
->mtx
);
1831 return ieee80211_start_mesh(sdata
);
1834 static int ieee80211_leave_mesh(struct wiphy
*wiphy
, struct net_device
*dev
)
1836 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1838 ieee80211_stop_mesh(sdata
);
1839 mutex_lock(&sdata
->local
->mtx
);
1840 ieee80211_vif_release_channel(sdata
);
1841 mutex_unlock(&sdata
->local
->mtx
);
1847 static int ieee80211_change_bss(struct wiphy
*wiphy
,
1848 struct net_device
*dev
,
1849 struct bss_parameters
*params
)
1851 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1852 enum ieee80211_band band
;
1855 if (!sdata_dereference(sdata
->u
.ap
.beacon
, sdata
))
1858 band
= ieee80211_get_sdata_band(sdata
);
1860 if (params
->use_cts_prot
>= 0) {
1861 sdata
->vif
.bss_conf
.use_cts_prot
= params
->use_cts_prot
;
1862 changed
|= BSS_CHANGED_ERP_CTS_PROT
;
1864 if (params
->use_short_preamble
>= 0) {
1865 sdata
->vif
.bss_conf
.use_short_preamble
=
1866 params
->use_short_preamble
;
1867 changed
|= BSS_CHANGED_ERP_PREAMBLE
;
1870 if (!sdata
->vif
.bss_conf
.use_short_slot
&&
1871 band
== IEEE80211_BAND_5GHZ
) {
1872 sdata
->vif
.bss_conf
.use_short_slot
= true;
1873 changed
|= BSS_CHANGED_ERP_SLOT
;
1876 if (params
->use_short_slot_time
>= 0) {
1877 sdata
->vif
.bss_conf
.use_short_slot
=
1878 params
->use_short_slot_time
;
1879 changed
|= BSS_CHANGED_ERP_SLOT
;
1882 if (params
->basic_rates
) {
1883 ieee80211_parse_bitrates(&sdata
->vif
.bss_conf
.chandef
,
1885 params
->basic_rates
,
1886 params
->basic_rates_len
,
1887 &sdata
->vif
.bss_conf
.basic_rates
);
1888 changed
|= BSS_CHANGED_BASIC_RATES
;
1891 if (params
->ap_isolate
>= 0) {
1892 if (params
->ap_isolate
)
1893 sdata
->flags
|= IEEE80211_SDATA_DONT_BRIDGE_PACKETS
;
1895 sdata
->flags
&= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS
;
1898 if (params
->ht_opmode
>= 0) {
1899 sdata
->vif
.bss_conf
.ht_operation_mode
=
1900 (u16
) params
->ht_opmode
;
1901 changed
|= BSS_CHANGED_HT
;
1904 if (params
->p2p_ctwindow
>= 0) {
1905 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
&=
1906 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK
;
1907 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
|=
1908 params
->p2p_ctwindow
& IEEE80211_P2P_OPPPS_CTWINDOW_MASK
;
1909 changed
|= BSS_CHANGED_P2P_PS
;
1912 if (params
->p2p_opp_ps
> 0) {
1913 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
|=
1914 IEEE80211_P2P_OPPPS_ENABLE_BIT
;
1915 changed
|= BSS_CHANGED_P2P_PS
;
1916 } else if (params
->p2p_opp_ps
== 0) {
1917 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
&=
1918 ~IEEE80211_P2P_OPPPS_ENABLE_BIT
;
1919 changed
|= BSS_CHANGED_P2P_PS
;
1922 ieee80211_bss_info_change_notify(sdata
, changed
);
1927 static int ieee80211_set_txq_params(struct wiphy
*wiphy
,
1928 struct net_device
*dev
,
1929 struct ieee80211_txq_params
*params
)
1931 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
1932 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1933 struct ieee80211_tx_queue_params p
;
1935 if (!local
->ops
->conf_tx
)
1938 if (local
->hw
.queues
< IEEE80211_NUM_ACS
)
1941 memset(&p
, 0, sizeof(p
));
1942 p
.aifs
= params
->aifs
;
1943 p
.cw_max
= params
->cwmax
;
1944 p
.cw_min
= params
->cwmin
;
1945 p
.txop
= params
->txop
;
1948 * Setting tx queue params disables u-apsd because it's only
1949 * called in master mode.
1953 sdata
->tx_conf
[params
->ac
] = p
;
1954 if (drv_conf_tx(local
, sdata
, params
->ac
, &p
)) {
1955 wiphy_debug(local
->hw
.wiphy
,
1956 "failed to set TX queue parameters for AC %d\n",
1961 ieee80211_bss_info_change_notify(sdata
, BSS_CHANGED_QOS
);
1967 static int ieee80211_suspend(struct wiphy
*wiphy
,
1968 struct cfg80211_wowlan
*wowlan
)
1970 return __ieee80211_suspend(wiphy_priv(wiphy
), wowlan
);
1973 static int ieee80211_resume(struct wiphy
*wiphy
)
1975 return __ieee80211_resume(wiphy_priv(wiphy
));
1978 #define ieee80211_suspend NULL
1979 #define ieee80211_resume NULL
1982 static int ieee80211_scan(struct wiphy
*wiphy
,
1983 struct cfg80211_scan_request
*req
)
1985 struct ieee80211_sub_if_data
*sdata
;
1987 sdata
= IEEE80211_WDEV_TO_SUB_IF(req
->wdev
);
1989 switch (ieee80211_vif_type_p2p(&sdata
->vif
)) {
1990 case NL80211_IFTYPE_STATION
:
1991 case NL80211_IFTYPE_ADHOC
:
1992 case NL80211_IFTYPE_MESH_POINT
:
1993 case NL80211_IFTYPE_P2P_CLIENT
:
1994 case NL80211_IFTYPE_P2P_DEVICE
:
1996 case NL80211_IFTYPE_P2P_GO
:
1997 if (sdata
->local
->ops
->hw_scan
)
2000 * FIXME: implement NoA while scanning in software,
2001 * for now fall through to allow scanning only when
2002 * beaconing hasn't been configured yet
2004 case NL80211_IFTYPE_AP
:
2006 * If the scan has been forced (and the driver supports
2007 * forcing), don't care about being beaconing already.
2008 * This will create problems to the attached stations (e.g. all
2009 * the frames sent while scanning on other channel will be
2012 if (sdata
->u
.ap
.beacon
&&
2013 (!(wiphy
->features
& NL80211_FEATURE_AP_SCAN
) ||
2014 !(req
->flags
& NL80211_SCAN_FLAG_AP
)))
2021 return ieee80211_request_scan(sdata
, req
);
2025 ieee80211_sched_scan_start(struct wiphy
*wiphy
,
2026 struct net_device
*dev
,
2027 struct cfg80211_sched_scan_request
*req
)
2029 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2031 if (!sdata
->local
->ops
->sched_scan_start
)
2034 return ieee80211_request_sched_scan_start(sdata
, req
);
2038 ieee80211_sched_scan_stop(struct wiphy
*wiphy
, struct net_device
*dev
)
2040 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2042 if (!sdata
->local
->ops
->sched_scan_stop
)
2045 return ieee80211_request_sched_scan_stop(sdata
);
2048 static int ieee80211_auth(struct wiphy
*wiphy
, struct net_device
*dev
,
2049 struct cfg80211_auth_request
*req
)
2051 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2054 static int ieee80211_assoc(struct wiphy
*wiphy
, struct net_device
*dev
,
2055 struct cfg80211_assoc_request
*req
)
2057 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2060 static int ieee80211_deauth(struct wiphy
*wiphy
, struct net_device
*dev
,
2061 struct cfg80211_deauth_request
*req
)
2063 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2066 static int ieee80211_disassoc(struct wiphy
*wiphy
, struct net_device
*dev
,
2067 struct cfg80211_disassoc_request
*req
)
2069 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2072 static int ieee80211_join_ibss(struct wiphy
*wiphy
, struct net_device
*dev
,
2073 struct cfg80211_ibss_params
*params
)
2075 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev
), params
);
2078 static int ieee80211_leave_ibss(struct wiphy
*wiphy
, struct net_device
*dev
)
2080 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev
));
2083 static int ieee80211_join_ocb(struct wiphy
*wiphy
, struct net_device
*dev
,
2084 struct ocb_setup
*setup
)
2086 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev
), setup
);
2089 static int ieee80211_leave_ocb(struct wiphy
*wiphy
, struct net_device
*dev
)
2091 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev
));
2094 static int ieee80211_set_mcast_rate(struct wiphy
*wiphy
, struct net_device
*dev
,
2095 int rate
[IEEE80211_NUM_BANDS
])
2097 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2099 memcpy(sdata
->vif
.bss_conf
.mcast_rate
, rate
,
2100 sizeof(int) * IEEE80211_NUM_BANDS
);
2105 static int ieee80211_set_wiphy_params(struct wiphy
*wiphy
, u32 changed
)
2107 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2110 if (changed
& WIPHY_PARAM_FRAG_THRESHOLD
) {
2111 ieee80211_check_fast_xmit_all(local
);
2113 err
= drv_set_frag_threshold(local
, wiphy
->frag_threshold
);
2116 ieee80211_check_fast_xmit_all(local
);
2121 if ((changed
& WIPHY_PARAM_COVERAGE_CLASS
) ||
2122 (changed
& WIPHY_PARAM_DYN_ACK
)) {
2125 coverage_class
= changed
& WIPHY_PARAM_COVERAGE_CLASS
?
2126 wiphy
->coverage_class
: -1;
2127 err
= drv_set_coverage_class(local
, coverage_class
);
2133 if (changed
& WIPHY_PARAM_RTS_THRESHOLD
) {
2134 err
= drv_set_rts_threshold(local
, wiphy
->rts_threshold
);
2140 if (changed
& WIPHY_PARAM_RETRY_SHORT
) {
2141 if (wiphy
->retry_short
> IEEE80211_MAX_TX_RETRY
)
2143 local
->hw
.conf
.short_frame_max_tx_count
= wiphy
->retry_short
;
2145 if (changed
& WIPHY_PARAM_RETRY_LONG
) {
2146 if (wiphy
->retry_long
> IEEE80211_MAX_TX_RETRY
)
2148 local
->hw
.conf
.long_frame_max_tx_count
= wiphy
->retry_long
;
2151 (WIPHY_PARAM_RETRY_SHORT
| WIPHY_PARAM_RETRY_LONG
))
2152 ieee80211_hw_config(local
, IEEE80211_CONF_CHANGE_RETRY_LIMITS
);
2157 static int ieee80211_set_tx_power(struct wiphy
*wiphy
,
2158 struct wireless_dev
*wdev
,
2159 enum nl80211_tx_power_setting type
, int mbm
)
2161 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2162 struct ieee80211_sub_if_data
*sdata
;
2163 enum nl80211_tx_power_setting txp_type
= type
;
2164 bool update_txp_type
= false;
2167 sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2170 case NL80211_TX_POWER_AUTOMATIC
:
2171 sdata
->user_power_level
= IEEE80211_UNSET_POWER_LEVEL
;
2172 txp_type
= NL80211_TX_POWER_LIMITED
;
2174 case NL80211_TX_POWER_LIMITED
:
2175 case NL80211_TX_POWER_FIXED
:
2176 if (mbm
< 0 || (mbm
% 100))
2178 sdata
->user_power_level
= MBM_TO_DBM(mbm
);
2182 if (txp_type
!= sdata
->vif
.bss_conf
.txpower_type
) {
2183 update_txp_type
= true;
2184 sdata
->vif
.bss_conf
.txpower_type
= txp_type
;
2187 ieee80211_recalc_txpower(sdata
, update_txp_type
);
2193 case NL80211_TX_POWER_AUTOMATIC
:
2194 local
->user_power_level
= IEEE80211_UNSET_POWER_LEVEL
;
2195 txp_type
= NL80211_TX_POWER_LIMITED
;
2197 case NL80211_TX_POWER_LIMITED
:
2198 case NL80211_TX_POWER_FIXED
:
2199 if (mbm
< 0 || (mbm
% 100))
2201 local
->user_power_level
= MBM_TO_DBM(mbm
);
2205 mutex_lock(&local
->iflist_mtx
);
2206 list_for_each_entry(sdata
, &local
->interfaces
, list
) {
2207 sdata
->user_power_level
= local
->user_power_level
;
2208 if (txp_type
!= sdata
->vif
.bss_conf
.txpower_type
)
2209 update_txp_type
= true;
2210 sdata
->vif
.bss_conf
.txpower_type
= txp_type
;
2212 list_for_each_entry(sdata
, &local
->interfaces
, list
)
2213 ieee80211_recalc_txpower(sdata
, update_txp_type
);
2214 mutex_unlock(&local
->iflist_mtx
);
2219 static int ieee80211_get_tx_power(struct wiphy
*wiphy
,
2220 struct wireless_dev
*wdev
,
2223 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2224 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2226 if (local
->ops
->get_txpower
)
2227 return drv_get_txpower(local
, sdata
, dbm
);
2229 if (!local
->use_chanctx
)
2230 *dbm
= local
->hw
.conf
.power_level
;
2232 *dbm
= sdata
->vif
.bss_conf
.txpower
;
2237 static int ieee80211_set_wds_peer(struct wiphy
*wiphy
, struct net_device
*dev
,
2240 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2242 memcpy(&sdata
->u
.wds
.remote_addr
, addr
, ETH_ALEN
);
2247 static void ieee80211_rfkill_poll(struct wiphy
*wiphy
)
2249 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2251 drv_rfkill_poll(local
);
2254 #ifdef CONFIG_NL80211_TESTMODE
2255 static int ieee80211_testmode_cmd(struct wiphy
*wiphy
,
2256 struct wireless_dev
*wdev
,
2257 void *data
, int len
)
2259 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2260 struct ieee80211_vif
*vif
= NULL
;
2262 if (!local
->ops
->testmode_cmd
)
2266 struct ieee80211_sub_if_data
*sdata
;
2268 sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2269 if (sdata
->flags
& IEEE80211_SDATA_IN_DRIVER
)
2273 return local
->ops
->testmode_cmd(&local
->hw
, vif
, data
, len
);
2276 static int ieee80211_testmode_dump(struct wiphy
*wiphy
,
2277 struct sk_buff
*skb
,
2278 struct netlink_callback
*cb
,
2279 void *data
, int len
)
2281 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2283 if (!local
->ops
->testmode_dump
)
2286 return local
->ops
->testmode_dump(&local
->hw
, skb
, cb
, data
, len
);
2290 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data
*sdata
,
2291 enum ieee80211_smps_mode smps_mode
)
2293 struct sta_info
*sta
;
2294 enum ieee80211_smps_mode old_req
;
2296 if (WARN_ON_ONCE(sdata
->vif
.type
!= NL80211_IFTYPE_AP
))
2299 if (sdata
->vif
.bss_conf
.chandef
.width
== NL80211_CHAN_WIDTH_20_NOHT
)
2302 old_req
= sdata
->u
.ap
.req_smps
;
2303 sdata
->u
.ap
.req_smps
= smps_mode
;
2305 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2306 if (old_req
== smps_mode
||
2307 smps_mode
== IEEE80211_SMPS_AUTOMATIC
)
2310 /* If no associated stations, there's no need to do anything */
2311 if (!atomic_read(&sdata
->u
.ap
.num_mcast_sta
)) {
2312 sdata
->smps_mode
= smps_mode
;
2313 ieee80211_queue_work(&sdata
->local
->hw
, &sdata
->recalc_smps
);
2318 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2319 smps_mode
, atomic_read(&sdata
->u
.ap
.num_mcast_sta
));
2321 mutex_lock(&sdata
->local
->sta_mtx
);
2322 list_for_each_entry(sta
, &sdata
->local
->sta_list
, list
) {
2324 * Only stations associated to our AP and
2327 if (sta
->sdata
->bss
!= &sdata
->u
.ap
)
2330 /* This station doesn't support MIMO - skip it */
2331 if (sta_info_tx_streams(sta
) == 1)
2335 * Don't wake up a STA just to send the action frame
2336 * unless we are getting more restrictive.
2338 if (test_sta_flag(sta
, WLAN_STA_PS_STA
) &&
2339 !ieee80211_smps_is_restrictive(sta
->known_smps_mode
,
2341 ht_dbg(sdata
, "Won't send SMPS to sleeping STA %pM\n",
2347 * If the STA is not authorized, wait until it gets
2348 * authorized and the action frame will be sent then.
2350 if (!test_sta_flag(sta
, WLAN_STA_AUTHORIZED
))
2353 ht_dbg(sdata
, "Sending SMPS to %pM\n", sta
->sta
.addr
);
2354 ieee80211_send_smps_action(sdata
, smps_mode
, sta
->sta
.addr
,
2355 sdata
->vif
.bss_conf
.bssid
);
2357 mutex_unlock(&sdata
->local
->sta_mtx
);
2359 sdata
->smps_mode
= smps_mode
;
2360 ieee80211_queue_work(&sdata
->local
->hw
, &sdata
->recalc_smps
);
2365 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data
*sdata
,
2366 enum ieee80211_smps_mode smps_mode
)
2369 enum ieee80211_smps_mode old_req
;
2371 struct sta_info
*sta
;
2372 bool tdls_peer_found
= false;
2374 lockdep_assert_held(&sdata
->wdev
.mtx
);
2376 if (WARN_ON_ONCE(sdata
->vif
.type
!= NL80211_IFTYPE_STATION
))
2379 old_req
= sdata
->u
.mgd
.req_smps
;
2380 sdata
->u
.mgd
.req_smps
= smps_mode
;
2382 if (old_req
== smps_mode
&&
2383 smps_mode
!= IEEE80211_SMPS_AUTOMATIC
)
2387 * If not associated, or current association is not an HT
2388 * association, there's no need to do anything, just store
2389 * the new value until we associate.
2391 if (!sdata
->u
.mgd
.associated
||
2392 sdata
->vif
.bss_conf
.chandef
.width
== NL80211_CHAN_WIDTH_20_NOHT
)
2395 ap
= sdata
->u
.mgd
.associated
->bssid
;
2398 list_for_each_entry_rcu(sta
, &sdata
->local
->sta_list
, list
) {
2399 if (!sta
->sta
.tdls
|| sta
->sdata
!= sdata
|| !sta
->uploaded
||
2400 !test_sta_flag(sta
, WLAN_STA_AUTHORIZED
))
2403 tdls_peer_found
= true;
2408 if (smps_mode
== IEEE80211_SMPS_AUTOMATIC
) {
2409 if (tdls_peer_found
|| !sdata
->u
.mgd
.powersave
)
2410 smps_mode
= IEEE80211_SMPS_OFF
;
2412 smps_mode
= IEEE80211_SMPS_DYNAMIC
;
2415 /* send SM PS frame to AP */
2416 err
= ieee80211_send_smps_action(sdata
, smps_mode
,
2419 sdata
->u
.mgd
.req_smps
= old_req
;
2420 else if (smps_mode
!= IEEE80211_SMPS_OFF
&& tdls_peer_found
)
2421 ieee80211_teardown_tdls_peers(sdata
);
2426 static int ieee80211_set_power_mgmt(struct wiphy
*wiphy
, struct net_device
*dev
,
2427 bool enabled
, int timeout
)
2429 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2430 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
2432 if (sdata
->vif
.type
!= NL80211_IFTYPE_STATION
)
2435 if (!ieee80211_hw_check(&local
->hw
, SUPPORTS_PS
))
2438 if (enabled
== sdata
->u
.mgd
.powersave
&&
2439 timeout
== local
->dynamic_ps_forced_timeout
)
2442 sdata
->u
.mgd
.powersave
= enabled
;
2443 local
->dynamic_ps_forced_timeout
= timeout
;
2445 /* no change, but if automatic follow powersave */
2447 __ieee80211_request_smps_mgd(sdata
, sdata
->u
.mgd
.req_smps
);
2448 sdata_unlock(sdata
);
2450 if (ieee80211_hw_check(&local
->hw
, SUPPORTS_DYNAMIC_PS
))
2451 ieee80211_hw_config(local
, IEEE80211_CONF_CHANGE_PS
);
2453 ieee80211_recalc_ps(local
, -1);
2454 ieee80211_recalc_ps_vif(sdata
);
2459 static int ieee80211_set_cqm_rssi_config(struct wiphy
*wiphy
,
2460 struct net_device
*dev
,
2461 s32 rssi_thold
, u32 rssi_hyst
)
2463 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2464 struct ieee80211_vif
*vif
= &sdata
->vif
;
2465 struct ieee80211_bss_conf
*bss_conf
= &vif
->bss_conf
;
2467 if (rssi_thold
== bss_conf
->cqm_rssi_thold
&&
2468 rssi_hyst
== bss_conf
->cqm_rssi_hyst
)
2471 if (sdata
->vif
.driver_flags
& IEEE80211_VIF_BEACON_FILTER
&&
2472 !(sdata
->vif
.driver_flags
& IEEE80211_VIF_SUPPORTS_CQM_RSSI
))
2475 bss_conf
->cqm_rssi_thold
= rssi_thold
;
2476 bss_conf
->cqm_rssi_hyst
= rssi_hyst
;
2477 sdata
->u
.mgd
.last_cqm_event_signal
= 0;
2479 /* tell the driver upon association, unless already associated */
2480 if (sdata
->u
.mgd
.associated
&&
2481 sdata
->vif
.driver_flags
& IEEE80211_VIF_SUPPORTS_CQM_RSSI
)
2482 ieee80211_bss_info_change_notify(sdata
, BSS_CHANGED_CQM
);
2487 static int ieee80211_set_bitrate_mask(struct wiphy
*wiphy
,
2488 struct net_device
*dev
,
2490 const struct cfg80211_bitrate_mask
*mask
)
2492 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2493 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
2496 if (!ieee80211_sdata_running(sdata
))
2499 if (ieee80211_hw_check(&local
->hw
, HAS_RATE_CONTROL
)) {
2500 ret
= drv_set_bitrate_mask(local
, sdata
, mask
);
2505 for (i
= 0; i
< IEEE80211_NUM_BANDS
; i
++) {
2506 struct ieee80211_supported_band
*sband
= wiphy
->bands
[i
];
2509 sdata
->rc_rateidx_mask
[i
] = mask
->control
[i
].legacy
;
2510 memcpy(sdata
->rc_rateidx_mcs_mask
[i
], mask
->control
[i
].ht_mcs
,
2511 sizeof(mask
->control
[i
].ht_mcs
));
2512 memcpy(sdata
->rc_rateidx_vht_mcs_mask
[i
],
2513 mask
->control
[i
].vht_mcs
,
2514 sizeof(mask
->control
[i
].vht_mcs
));
2516 sdata
->rc_has_mcs_mask
[i
] = false;
2517 sdata
->rc_has_vht_mcs_mask
[i
] = false;
2521 for (j
= 0; j
< IEEE80211_HT_MCS_MASK_LEN
; j
++) {
2522 if (~sdata
->rc_rateidx_mcs_mask
[i
][j
]) {
2523 sdata
->rc_has_mcs_mask
[i
] = true;
2528 for (j
= 0; j
< NL80211_VHT_NSS_MAX
; j
++) {
2529 if (~sdata
->rc_rateidx_vht_mcs_mask
[i
][j
]) {
2530 sdata
->rc_has_vht_mcs_mask
[i
] = true;
2539 static bool ieee80211_coalesce_started_roc(struct ieee80211_local
*local
,
2540 struct ieee80211_roc_work
*new_roc
,
2541 struct ieee80211_roc_work
*cur_roc
)
2543 unsigned long now
= jiffies
;
2544 unsigned long remaining
= cur_roc
->hw_start_time
+
2545 msecs_to_jiffies(cur_roc
->duration
) -
2548 if (WARN_ON(!cur_roc
->started
|| !cur_roc
->hw_begun
))
2551 /* if it doesn't fit entirely, schedule a new one */
2552 if (new_roc
->duration
> jiffies_to_msecs(remaining
))
2555 ieee80211_handle_roc_started(new_roc
);
2557 /* add to dependents so we send the expired event properly */
2558 list_add_tail(&new_roc
->list
, &cur_roc
->dependents
);
2562 static u64
ieee80211_mgmt_tx_cookie(struct ieee80211_local
*local
)
2564 lockdep_assert_held(&local
->mtx
);
2566 local
->roc_cookie_counter
++;
2568 /* wow, you wrapped 64 bits ... more likely a bug */
2569 if (WARN_ON(local
->roc_cookie_counter
== 0))
2570 local
->roc_cookie_counter
++;
2572 return local
->roc_cookie_counter
;
2575 static int ieee80211_start_roc_work(struct ieee80211_local
*local
,
2576 struct ieee80211_sub_if_data
*sdata
,
2577 struct ieee80211_channel
*channel
,
2578 unsigned int duration
, u64
*cookie
,
2579 struct sk_buff
*txskb
,
2580 enum ieee80211_roc_type type
)
2582 struct ieee80211_roc_work
*roc
, *tmp
;
2583 bool queued
= false;
2586 lockdep_assert_held(&local
->mtx
);
2588 if (local
->use_chanctx
&& !local
->ops
->remain_on_channel
)
2591 roc
= kzalloc(sizeof(*roc
), GFP_KERNEL
);
2596 * If the duration is zero, then the driver
2597 * wouldn't actually do anything. Set it to
2600 * TODO: cancel the off-channel operation
2601 * when we get the SKB's TX status and
2602 * the wait time was zero before.
2607 roc
->chan
= channel
;
2608 roc
->duration
= duration
;
2609 roc
->req_duration
= duration
;
2613 INIT_DELAYED_WORK(&roc
->work
, ieee80211_sw_roc_work
);
2614 INIT_LIST_HEAD(&roc
->dependents
);
2617 * cookie is either the roc cookie (for normal roc)
2618 * or the SKB (for mgmt TX)
2621 roc
->cookie
= ieee80211_mgmt_tx_cookie(local
);
2622 *cookie
= roc
->cookie
;
2624 roc
->mgmt_tx_cookie
= *cookie
;
2627 /* if there's one pending or we're scanning, queue this one */
2628 if (!list_empty(&local
->roc_list
) ||
2629 local
->scanning
|| ieee80211_is_radar_required(local
))
2630 goto out_check_combine
;
2632 /* if not HW assist, just queue & schedule work */
2633 if (!local
->ops
->remain_on_channel
) {
2634 ieee80211_queue_delayed_work(&local
->hw
, &roc
->work
, 0);
2638 /* otherwise actually kick it off here (for error handling) */
2640 ret
= drv_remain_on_channel(local
, sdata
, channel
, duration
, type
);
2646 roc
->started
= true;
2650 list_for_each_entry(tmp
, &local
->roc_list
, list
) {
2651 if (tmp
->chan
!= channel
|| tmp
->sdata
!= sdata
)
2655 * Extend this ROC if possible:
2657 * If it hasn't started yet, just increase the duration
2658 * and add the new one to the list of dependents.
2659 * If the type of the new ROC has higher priority, modify the
2660 * type of the previous one to match that of the new one.
2662 if (!tmp
->started
) {
2663 list_add_tail(&roc
->list
, &tmp
->dependents
);
2664 tmp
->duration
= max(tmp
->duration
, roc
->duration
);
2665 tmp
->type
= max(tmp
->type
, roc
->type
);
2670 /* If it has already started, it's more difficult ... */
2671 if (local
->ops
->remain_on_channel
) {
2673 * In the offloaded ROC case, if it hasn't begun, add
2674 * this new one to the dependent list to be handled
2675 * when the master one begins. If it has begun,
2676 * check if it fits entirely within the existing one,
2677 * in which case it will just be dependent as well.
2678 * Otherwise, schedule it by itself.
2680 if (!tmp
->hw_begun
) {
2681 list_add_tail(&roc
->list
, &tmp
->dependents
);
2686 if (ieee80211_coalesce_started_roc(local
, roc
, tmp
))
2688 } else if (del_timer_sync(&tmp
->work
.timer
)) {
2689 unsigned long new_end
;
2692 * In the software ROC case, cancel the timer, if
2693 * that fails then the finish work is already
2694 * queued/pending and thus we queue the new ROC
2695 * normally, if that succeeds then we can extend
2696 * the timer duration and TX the frame (if any.)
2699 list_add_tail(&roc
->list
, &tmp
->dependents
);
2702 new_end
= jiffies
+ msecs_to_jiffies(roc
->duration
);
2704 /* ok, it was started & we canceled timer */
2705 if (time_after(new_end
, tmp
->work
.timer
.expires
))
2706 mod_timer(&tmp
->work
.timer
, new_end
);
2708 add_timer(&tmp
->work
.timer
);
2710 ieee80211_handle_roc_started(roc
);
2717 list_add_tail(&roc
->list
, &local
->roc_list
);
2722 static int ieee80211_remain_on_channel(struct wiphy
*wiphy
,
2723 struct wireless_dev
*wdev
,
2724 struct ieee80211_channel
*chan
,
2725 unsigned int duration
,
2728 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2729 struct ieee80211_local
*local
= sdata
->local
;
2732 mutex_lock(&local
->mtx
);
2733 ret
= ieee80211_start_roc_work(local
, sdata
, chan
,
2734 duration
, cookie
, NULL
,
2735 IEEE80211_ROC_TYPE_NORMAL
);
2736 mutex_unlock(&local
->mtx
);
2741 static int ieee80211_cancel_roc(struct ieee80211_local
*local
,
2742 u64 cookie
, bool mgmt_tx
)
2744 struct ieee80211_roc_work
*roc
, *tmp
, *found
= NULL
;
2747 mutex_lock(&local
->mtx
);
2748 list_for_each_entry_safe(roc
, tmp
, &local
->roc_list
, list
) {
2749 struct ieee80211_roc_work
*dep
, *tmp2
;
2751 list_for_each_entry_safe(dep
, tmp2
, &roc
->dependents
, list
) {
2752 if (!mgmt_tx
&& dep
->cookie
!= cookie
)
2754 else if (mgmt_tx
&& dep
->mgmt_tx_cookie
!= cookie
)
2756 /* found dependent item -- just remove it */
2757 list_del(&dep
->list
);
2758 mutex_unlock(&local
->mtx
);
2760 ieee80211_roc_notify_destroy(dep
, true);
2764 if (!mgmt_tx
&& roc
->cookie
!= cookie
)
2766 else if (mgmt_tx
&& roc
->mgmt_tx_cookie
!= cookie
)
2774 mutex_unlock(&local
->mtx
);
2779 * We found the item to cancel, so do that. Note that it
2780 * may have dependents, which we also cancel (and send
2781 * the expired signal for.) Not doing so would be quite
2782 * tricky here, but we may need to fix it later.
2785 if (local
->ops
->remain_on_channel
) {
2786 if (found
->started
) {
2787 ret
= drv_cancel_remain_on_channel(local
);
2788 if (WARN_ON_ONCE(ret
)) {
2789 mutex_unlock(&local
->mtx
);
2794 list_del(&found
->list
);
2797 ieee80211_start_next_roc(local
);
2798 mutex_unlock(&local
->mtx
);
2800 ieee80211_roc_notify_destroy(found
, true);
2802 /* work may be pending so use it all the time */
2803 found
->abort
= true;
2804 ieee80211_queue_delayed_work(&local
->hw
, &found
->work
, 0);
2806 mutex_unlock(&local
->mtx
);
2808 /* work will clean up etc */
2809 flush_delayed_work(&found
->work
);
2810 WARN_ON(!found
->to_be_freed
);
2817 static int ieee80211_cancel_remain_on_channel(struct wiphy
*wiphy
,
2818 struct wireless_dev
*wdev
,
2821 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2822 struct ieee80211_local
*local
= sdata
->local
;
2824 return ieee80211_cancel_roc(local
, cookie
, false);
2827 static int ieee80211_start_radar_detection(struct wiphy
*wiphy
,
2828 struct net_device
*dev
,
2829 struct cfg80211_chan_def
*chandef
,
2832 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2833 struct ieee80211_local
*local
= sdata
->local
;
2836 mutex_lock(&local
->mtx
);
2837 if (!list_empty(&local
->roc_list
) || local
->scanning
) {
2842 /* whatever, but channel contexts should not complain about that one */
2843 sdata
->smps_mode
= IEEE80211_SMPS_OFF
;
2844 sdata
->needed_rx_chains
= local
->rx_chains
;
2846 err
= ieee80211_vif_use_channel(sdata
, chandef
,
2847 IEEE80211_CHANCTX_SHARED
);
2851 ieee80211_queue_delayed_work(&sdata
->local
->hw
,
2852 &sdata
->dfs_cac_timer_work
,
2853 msecs_to_jiffies(cac_time_ms
));
2856 mutex_unlock(&local
->mtx
);
2860 static struct cfg80211_beacon_data
*
2861 cfg80211_beacon_dup(struct cfg80211_beacon_data
*beacon
)
2863 struct cfg80211_beacon_data
*new_beacon
;
2867 len
= beacon
->head_len
+ beacon
->tail_len
+ beacon
->beacon_ies_len
+
2868 beacon
->proberesp_ies_len
+ beacon
->assocresp_ies_len
+
2869 beacon
->probe_resp_len
;
2871 new_beacon
= kzalloc(sizeof(*new_beacon
) + len
, GFP_KERNEL
);
2875 pos
= (u8
*)(new_beacon
+ 1);
2876 if (beacon
->head_len
) {
2877 new_beacon
->head_len
= beacon
->head_len
;
2878 new_beacon
->head
= pos
;
2879 memcpy(pos
, beacon
->head
, beacon
->head_len
);
2880 pos
+= beacon
->head_len
;
2882 if (beacon
->tail_len
) {
2883 new_beacon
->tail_len
= beacon
->tail_len
;
2884 new_beacon
->tail
= pos
;
2885 memcpy(pos
, beacon
->tail
, beacon
->tail_len
);
2886 pos
+= beacon
->tail_len
;
2888 if (beacon
->beacon_ies_len
) {
2889 new_beacon
->beacon_ies_len
= beacon
->beacon_ies_len
;
2890 new_beacon
->beacon_ies
= pos
;
2891 memcpy(pos
, beacon
->beacon_ies
, beacon
->beacon_ies_len
);
2892 pos
+= beacon
->beacon_ies_len
;
2894 if (beacon
->proberesp_ies_len
) {
2895 new_beacon
->proberesp_ies_len
= beacon
->proberesp_ies_len
;
2896 new_beacon
->proberesp_ies
= pos
;
2897 memcpy(pos
, beacon
->proberesp_ies
, beacon
->proberesp_ies_len
);
2898 pos
+= beacon
->proberesp_ies_len
;
2900 if (beacon
->assocresp_ies_len
) {
2901 new_beacon
->assocresp_ies_len
= beacon
->assocresp_ies_len
;
2902 new_beacon
->assocresp_ies
= pos
;
2903 memcpy(pos
, beacon
->assocresp_ies
, beacon
->assocresp_ies_len
);
2904 pos
+= beacon
->assocresp_ies_len
;
2906 if (beacon
->probe_resp_len
) {
2907 new_beacon
->probe_resp_len
= beacon
->probe_resp_len
;
2908 beacon
->probe_resp
= pos
;
2909 memcpy(pos
, beacon
->probe_resp
, beacon
->probe_resp_len
);
2910 pos
+= beacon
->probe_resp_len
;
2916 void ieee80211_csa_finish(struct ieee80211_vif
*vif
)
2918 struct ieee80211_sub_if_data
*sdata
= vif_to_sdata(vif
);
2920 ieee80211_queue_work(&sdata
->local
->hw
,
2921 &sdata
->csa_finalize_work
);
2923 EXPORT_SYMBOL(ieee80211_csa_finish
);
2925 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
2930 switch (sdata
->vif
.type
) {
2931 case NL80211_IFTYPE_AP
:
2932 err
= ieee80211_assign_beacon(sdata
, sdata
->u
.ap
.next_beacon
,
2934 kfree(sdata
->u
.ap
.next_beacon
);
2935 sdata
->u
.ap
.next_beacon
= NULL
;
2941 case NL80211_IFTYPE_ADHOC
:
2942 err
= ieee80211_ibss_finish_csa(sdata
);
2947 #ifdef CONFIG_MAC80211_MESH
2948 case NL80211_IFTYPE_MESH_POINT
:
2949 err
= ieee80211_mesh_finish_csa(sdata
);
2963 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data
*sdata
)
2965 struct ieee80211_local
*local
= sdata
->local
;
2969 sdata_assert_lock(sdata
);
2970 lockdep_assert_held(&local
->mtx
);
2971 lockdep_assert_held(&local
->chanctx_mtx
);
2974 * using reservation isn't immediate as it may be deferred until later
2975 * with multi-vif. once reservation is complete it will re-schedule the
2976 * work with no reserved_chanctx so verify chandef to check if it
2977 * completed successfully
2980 if (sdata
->reserved_chanctx
) {
2982 * with multi-vif csa driver may call ieee80211_csa_finish()
2983 * many times while waiting for other interfaces to use their
2986 if (sdata
->reserved_ready
)
2989 return ieee80211_vif_use_reserved_context(sdata
);
2992 if (!cfg80211_chandef_identical(&sdata
->vif
.bss_conf
.chandef
,
2993 &sdata
->csa_chandef
))
2996 sdata
->vif
.csa_active
= false;
2998 err
= ieee80211_set_after_csa_beacon(sdata
, &changed
);
3002 ieee80211_bss_info_change_notify(sdata
, changed
);
3004 if (sdata
->csa_block_tx
) {
3005 ieee80211_wake_vif_queues(local
, sdata
,
3006 IEEE80211_QUEUE_STOP_REASON_CSA
);
3007 sdata
->csa_block_tx
= false;
3010 err
= drv_post_channel_switch(sdata
);
3014 cfg80211_ch_switch_notify(sdata
->dev
, &sdata
->csa_chandef
);
3019 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data
*sdata
)
3021 if (__ieee80211_csa_finalize(sdata
)) {
3022 sdata_info(sdata
, "failed to finalize CSA, disconnecting\n");
3023 cfg80211_stop_iface(sdata
->local
->hw
.wiphy
, &sdata
->wdev
,
3028 void ieee80211_csa_finalize_work(struct work_struct
*work
)
3030 struct ieee80211_sub_if_data
*sdata
=
3031 container_of(work
, struct ieee80211_sub_if_data
,
3033 struct ieee80211_local
*local
= sdata
->local
;
3036 mutex_lock(&local
->mtx
);
3037 mutex_lock(&local
->chanctx_mtx
);
3039 /* AP might have been stopped while waiting for the lock. */
3040 if (!sdata
->vif
.csa_active
)
3043 if (!ieee80211_sdata_running(sdata
))
3046 ieee80211_csa_finalize(sdata
);
3049 mutex_unlock(&local
->chanctx_mtx
);
3050 mutex_unlock(&local
->mtx
);
3051 sdata_unlock(sdata
);
3054 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
3055 struct cfg80211_csa_settings
*params
,
3058 struct ieee80211_csa_settings csa
= {};
3061 switch (sdata
->vif
.type
) {
3062 case NL80211_IFTYPE_AP
:
3063 sdata
->u
.ap
.next_beacon
=
3064 cfg80211_beacon_dup(¶ms
->beacon_after
);
3065 if (!sdata
->u
.ap
.next_beacon
)
3069 * With a count of 0, we don't have to wait for any
3070 * TBTT before switching, so complete the CSA
3071 * immediately. In theory, with a count == 1 we
3072 * should delay the switch until just before the next
3073 * TBTT, but that would complicate things so we switch
3074 * immediately too. If we would delay the switch
3075 * until the next TBTT, we would have to set the probe
3078 * TODO: A channel switch with count <= 1 without
3079 * sending a CSA action frame is kind of useless,
3080 * because the clients won't know we're changing
3081 * channels. The action frame must be implemented
3082 * either here or in the userspace.
3084 if (params
->count
<= 1)
3087 if ((params
->n_counter_offsets_beacon
>
3088 IEEE80211_MAX_CSA_COUNTERS_NUM
) ||
3089 (params
->n_counter_offsets_presp
>
3090 IEEE80211_MAX_CSA_COUNTERS_NUM
))
3093 csa
.counter_offsets_beacon
= params
->counter_offsets_beacon
;
3094 csa
.counter_offsets_presp
= params
->counter_offsets_presp
;
3095 csa
.n_counter_offsets_beacon
= params
->n_counter_offsets_beacon
;
3096 csa
.n_counter_offsets_presp
= params
->n_counter_offsets_presp
;
3097 csa
.count
= params
->count
;
3099 err
= ieee80211_assign_beacon(sdata
, ¶ms
->beacon_csa
, &csa
);
3101 kfree(sdata
->u
.ap
.next_beacon
);
3107 case NL80211_IFTYPE_ADHOC
:
3108 if (!sdata
->vif
.bss_conf
.ibss_joined
)
3111 if (params
->chandef
.width
!= sdata
->u
.ibss
.chandef
.width
)
3114 switch (params
->chandef
.width
) {
3115 case NL80211_CHAN_WIDTH_40
:
3116 if (cfg80211_get_chandef_type(¶ms
->chandef
) !=
3117 cfg80211_get_chandef_type(&sdata
->u
.ibss
.chandef
))
3119 case NL80211_CHAN_WIDTH_5
:
3120 case NL80211_CHAN_WIDTH_10
:
3121 case NL80211_CHAN_WIDTH_20_NOHT
:
3122 case NL80211_CHAN_WIDTH_20
:
3128 /* changes into another band are not supported */
3129 if (sdata
->u
.ibss
.chandef
.chan
->band
!=
3130 params
->chandef
.chan
->band
)
3133 /* see comments in the NL80211_IFTYPE_AP block */
3134 if (params
->count
> 1) {
3135 err
= ieee80211_ibss_csa_beacon(sdata
, params
);
3141 ieee80211_send_action_csa(sdata
, params
);
3144 #ifdef CONFIG_MAC80211_MESH
3145 case NL80211_IFTYPE_MESH_POINT
: {
3146 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
3148 if (params
->chandef
.width
!= sdata
->vif
.bss_conf
.chandef
.width
)
3151 /* changes into another band are not supported */
3152 if (sdata
->vif
.bss_conf
.chandef
.chan
->band
!=
3153 params
->chandef
.chan
->band
)
3156 if (ifmsh
->csa_role
== IEEE80211_MESH_CSA_ROLE_NONE
) {
3157 ifmsh
->csa_role
= IEEE80211_MESH_CSA_ROLE_INIT
;
3158 if (!ifmsh
->pre_value
)
3159 ifmsh
->pre_value
= 1;
3164 /* see comments in the NL80211_IFTYPE_AP block */
3165 if (params
->count
> 1) {
3166 err
= ieee80211_mesh_csa_beacon(sdata
, params
);
3168 ifmsh
->csa_role
= IEEE80211_MESH_CSA_ROLE_NONE
;
3174 if (ifmsh
->csa_role
== IEEE80211_MESH_CSA_ROLE_INIT
)
3175 ieee80211_send_action_csa(sdata
, params
);
3188 __ieee80211_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
3189 struct cfg80211_csa_settings
*params
)
3191 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3192 struct ieee80211_local
*local
= sdata
->local
;
3193 struct ieee80211_channel_switch ch_switch
;
3194 struct ieee80211_chanctx_conf
*conf
;
3195 struct ieee80211_chanctx
*chanctx
;
3199 sdata_assert_lock(sdata
);
3200 lockdep_assert_held(&local
->mtx
);
3202 if (!list_empty(&local
->roc_list
) || local
->scanning
)
3205 if (sdata
->wdev
.cac_started
)
3208 if (cfg80211_chandef_identical(¶ms
->chandef
,
3209 &sdata
->vif
.bss_conf
.chandef
))
3212 /* don't allow another channel switch if one is already active. */
3213 if (sdata
->vif
.csa_active
)
3216 mutex_lock(&local
->chanctx_mtx
);
3217 conf
= rcu_dereference_protected(sdata
->vif
.chanctx_conf
,
3218 lockdep_is_held(&local
->chanctx_mtx
));
3224 chanctx
= container_of(conf
, struct ieee80211_chanctx
, conf
);
3230 ch_switch
.timestamp
= 0;
3231 ch_switch
.device_timestamp
= 0;
3232 ch_switch
.block_tx
= params
->block_tx
;
3233 ch_switch
.chandef
= params
->chandef
;
3234 ch_switch
.count
= params
->count
;
3236 err
= drv_pre_channel_switch(sdata
, &ch_switch
);
3240 err
= ieee80211_vif_reserve_chanctx(sdata
, ¶ms
->chandef
,
3242 params
->radar_required
);
3246 /* if reservation is invalid then this will fail */
3247 err
= ieee80211_check_combinations(sdata
, NULL
, chanctx
->mode
, 0);
3249 ieee80211_vif_unreserve_chanctx(sdata
);
3253 err
= ieee80211_set_csa_beacon(sdata
, params
, &changed
);
3255 ieee80211_vif_unreserve_chanctx(sdata
);
3259 sdata
->csa_chandef
= params
->chandef
;
3260 sdata
->csa_block_tx
= params
->block_tx
;
3261 sdata
->vif
.csa_active
= true;
3263 if (sdata
->csa_block_tx
)
3264 ieee80211_stop_vif_queues(local
, sdata
,
3265 IEEE80211_QUEUE_STOP_REASON_CSA
);
3267 cfg80211_ch_switch_started_notify(sdata
->dev
, &sdata
->csa_chandef
,
3271 ieee80211_bss_info_change_notify(sdata
, changed
);
3272 drv_channel_switch_beacon(sdata
, ¶ms
->chandef
);
3274 /* if the beacon didn't change, we can finalize immediately */
3275 ieee80211_csa_finalize(sdata
);
3279 mutex_unlock(&local
->chanctx_mtx
);
3283 int ieee80211_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
3284 struct cfg80211_csa_settings
*params
)
3286 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3287 struct ieee80211_local
*local
= sdata
->local
;
3290 mutex_lock(&local
->mtx
);
3291 err
= __ieee80211_channel_switch(wiphy
, dev
, params
);
3292 mutex_unlock(&local
->mtx
);
3297 static struct sk_buff
*ieee80211_make_ack_skb(struct ieee80211_local
*local
,
3298 struct sk_buff
*skb
, u64
*cookie
,
3301 unsigned long spin_flags
;
3302 struct sk_buff
*ack_skb
;
3305 ack_skb
= skb_copy(skb
, gfp
);
3307 return ERR_PTR(-ENOMEM
);
3309 spin_lock_irqsave(&local
->ack_status_lock
, spin_flags
);
3310 id
= idr_alloc(&local
->ack_status_frames
, ack_skb
,
3311 1, 0x10000, GFP_ATOMIC
);
3312 spin_unlock_irqrestore(&local
->ack_status_lock
, spin_flags
);
3316 return ERR_PTR(-ENOMEM
);
3319 IEEE80211_SKB_CB(skb
)->ack_frame_id
= id
;
3321 *cookie
= ieee80211_mgmt_tx_cookie(local
);
3322 IEEE80211_SKB_CB(ack_skb
)->ack
.cookie
= *cookie
;
3327 static int ieee80211_mgmt_tx(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
3328 struct cfg80211_mgmt_tx_params
*params
,
3331 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
3332 struct ieee80211_local
*local
= sdata
->local
;
3333 struct sk_buff
*skb
, *ack_skb
;
3334 struct sta_info
*sta
;
3335 const struct ieee80211_mgmt
*mgmt
= (void *)params
->buf
;
3336 bool need_offchan
= false;
3341 if (params
->dont_wait_for_ack
)
3342 flags
= IEEE80211_TX_CTL_NO_ACK
;
3344 flags
= IEEE80211_TX_INTFL_NL80211_FRAME_TX
|
3345 IEEE80211_TX_CTL_REQ_TX_STATUS
;
3348 flags
|= IEEE80211_TX_CTL_NO_CCK_RATE
;
3350 switch (sdata
->vif
.type
) {
3351 case NL80211_IFTYPE_ADHOC
:
3352 if (!sdata
->vif
.bss_conf
.ibss_joined
)
3353 need_offchan
= true;
3355 #ifdef CONFIG_MAC80211_MESH
3356 case NL80211_IFTYPE_MESH_POINT
:
3357 if (ieee80211_vif_is_mesh(&sdata
->vif
) &&
3358 !sdata
->u
.mesh
.mesh_id_len
)
3359 need_offchan
= true;
3362 case NL80211_IFTYPE_AP
:
3363 case NL80211_IFTYPE_AP_VLAN
:
3364 case NL80211_IFTYPE_P2P_GO
:
3365 if (sdata
->vif
.type
!= NL80211_IFTYPE_ADHOC
&&
3366 !ieee80211_vif_is_mesh(&sdata
->vif
) &&
3367 !rcu_access_pointer(sdata
->bss
->beacon
))
3368 need_offchan
= true;
3369 if (!ieee80211_is_action(mgmt
->frame_control
) ||
3370 mgmt
->u
.action
.category
== WLAN_CATEGORY_PUBLIC
||
3371 mgmt
->u
.action
.category
== WLAN_CATEGORY_SELF_PROTECTED
||
3372 mgmt
->u
.action
.category
== WLAN_CATEGORY_SPECTRUM_MGMT
)
3375 sta
= sta_info_get(sdata
, mgmt
->da
);
3380 case NL80211_IFTYPE_STATION
:
3381 case NL80211_IFTYPE_P2P_CLIENT
:
3383 if (!sdata
->u
.mgd
.associated
||
3384 (params
->offchan
&& params
->wait
&&
3385 local
->ops
->remain_on_channel
&&
3386 memcmp(sdata
->u
.mgd
.associated
->bssid
,
3387 mgmt
->bssid
, ETH_ALEN
)))
3388 need_offchan
= true;
3389 sdata_unlock(sdata
);
3391 case NL80211_IFTYPE_P2P_DEVICE
:
3392 need_offchan
= true;
3398 /* configurations requiring offchan cannot work if no channel has been
3401 if (need_offchan
&& !params
->chan
)
3404 mutex_lock(&local
->mtx
);
3406 /* Check if the operating channel is the requested channel */
3407 if (!need_offchan
) {
3408 struct ieee80211_chanctx_conf
*chanctx_conf
;
3411 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
3414 need_offchan
= params
->chan
&&
3416 chanctx_conf
->def
.chan
);
3417 } else if (!params
->chan
) {
3422 need_offchan
= true;
3427 if (need_offchan
&& !params
->offchan
) {
3432 skb
= dev_alloc_skb(local
->hw
.extra_tx_headroom
+ params
->len
);
3437 skb_reserve(skb
, local
->hw
.extra_tx_headroom
);
3439 data
= skb_put(skb
, params
->len
);
3440 memcpy(data
, params
->buf
, params
->len
);
3442 /* Update CSA counters */
3443 if (sdata
->vif
.csa_active
&&
3444 (sdata
->vif
.type
== NL80211_IFTYPE_AP
||
3445 sdata
->vif
.type
== NL80211_IFTYPE_MESH_POINT
||
3446 sdata
->vif
.type
== NL80211_IFTYPE_ADHOC
) &&
3447 params
->n_csa_offsets
) {
3449 struct beacon_data
*beacon
= NULL
;
3453 if (sdata
->vif
.type
== NL80211_IFTYPE_AP
)
3454 beacon
= rcu_dereference(sdata
->u
.ap
.beacon
);
3455 else if (sdata
->vif
.type
== NL80211_IFTYPE_ADHOC
)
3456 beacon
= rcu_dereference(sdata
->u
.ibss
.presp
);
3457 else if (ieee80211_vif_is_mesh(&sdata
->vif
))
3458 beacon
= rcu_dereference(sdata
->u
.mesh
.beacon
);
3461 for (i
= 0; i
< params
->n_csa_offsets
; i
++)
3462 data
[params
->csa_offsets
[i
]] =
3463 beacon
->csa_current_counter
;
3468 IEEE80211_SKB_CB(skb
)->flags
= flags
;
3470 skb
->dev
= sdata
->dev
;
3472 if (!params
->dont_wait_for_ack
) {
3473 /* make a copy to preserve the frame contents
3474 * in case of encryption.
3476 ack_skb
= ieee80211_make_ack_skb(local
, skb
, cookie
,
3478 if (IS_ERR(ack_skb
)) {
3479 ret
= PTR_ERR(ack_skb
);
3484 /* for cookie below */
3488 if (!need_offchan
) {
3489 ieee80211_tx_skb(sdata
, skb
);
3494 IEEE80211_SKB_CB(skb
)->flags
|= IEEE80211_TX_CTL_TX_OFFCHAN
|
3495 IEEE80211_TX_INTFL_OFFCHAN_TX_OK
;
3496 if (ieee80211_hw_check(&local
->hw
, QUEUE_CONTROL
))
3497 IEEE80211_SKB_CB(skb
)->hw_queue
=
3498 local
->hw
.offchannel_tx_hw_queue
;
3500 /* This will handle all kinds of coalescing and immediate TX */
3501 ret
= ieee80211_start_roc_work(local
, sdata
, params
->chan
,
3502 params
->wait
, cookie
, skb
,
3503 IEEE80211_ROC_TYPE_MGMT_TX
);
3507 mutex_unlock(&local
->mtx
);
3511 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy
*wiphy
,
3512 struct wireless_dev
*wdev
,
3515 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3517 return ieee80211_cancel_roc(local
, cookie
, true);
3520 static void ieee80211_mgmt_frame_register(struct wiphy
*wiphy
,
3521 struct wireless_dev
*wdev
,
3522 u16 frame_type
, bool reg
)
3524 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3526 switch (frame_type
) {
3527 case IEEE80211_FTYPE_MGMT
| IEEE80211_STYPE_PROBE_REQ
:
3529 local
->probe_req_reg
++;
3531 local
->probe_req_reg
--;
3533 if (!local
->open_count
)
3536 ieee80211_queue_work(&local
->hw
, &local
->reconfig_filter
);
3543 static int ieee80211_set_antenna(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
)
3545 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3550 return drv_set_antenna(local
, tx_ant
, rx_ant
);
3553 static int ieee80211_get_antenna(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
)
3555 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3557 return drv_get_antenna(local
, tx_ant
, rx_ant
);
3560 static int ieee80211_set_rekey_data(struct wiphy
*wiphy
,
3561 struct net_device
*dev
,
3562 struct cfg80211_gtk_rekey_data
*data
)
3564 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3565 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3567 if (!local
->ops
->set_rekey_data
)
3570 drv_set_rekey_data(local
, sdata
, data
);
3575 static int ieee80211_probe_client(struct wiphy
*wiphy
, struct net_device
*dev
,
3576 const u8
*peer
, u64
*cookie
)
3578 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3579 struct ieee80211_local
*local
= sdata
->local
;
3580 struct ieee80211_qos_hdr
*nullfunc
;
3581 struct sk_buff
*skb
, *ack_skb
;
3582 int size
= sizeof(*nullfunc
);
3585 struct ieee80211_tx_info
*info
;
3586 struct sta_info
*sta
;
3587 struct ieee80211_chanctx_conf
*chanctx_conf
;
3588 enum ieee80211_band band
;
3591 /* the lock is needed to assign the cookie later */
3592 mutex_lock(&local
->mtx
);
3595 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
3596 if (WARN_ON(!chanctx_conf
)) {
3600 band
= chanctx_conf
->def
.chan
->band
;
3601 sta
= sta_info_get_bss(sdata
, peer
);
3610 fc
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
3611 IEEE80211_STYPE_QOS_NULLFUNC
|
3612 IEEE80211_FCTL_FROMDS
);
3615 fc
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
3616 IEEE80211_STYPE_NULLFUNC
|
3617 IEEE80211_FCTL_FROMDS
);
3620 skb
= dev_alloc_skb(local
->hw
.extra_tx_headroom
+ size
);
3628 skb_reserve(skb
, local
->hw
.extra_tx_headroom
);
3630 nullfunc
= (void *) skb_put(skb
, size
);
3631 nullfunc
->frame_control
= fc
;
3632 nullfunc
->duration_id
= 0;
3633 memcpy(nullfunc
->addr1
, sta
->sta
.addr
, ETH_ALEN
);
3634 memcpy(nullfunc
->addr2
, sdata
->vif
.addr
, ETH_ALEN
);
3635 memcpy(nullfunc
->addr3
, sdata
->vif
.addr
, ETH_ALEN
);
3636 nullfunc
->seq_ctrl
= 0;
3638 info
= IEEE80211_SKB_CB(skb
);
3640 info
->flags
|= IEEE80211_TX_CTL_REQ_TX_STATUS
|
3641 IEEE80211_TX_INTFL_NL80211_FRAME_TX
;
3644 skb_set_queue_mapping(skb
, IEEE80211_AC_VO
);
3647 nullfunc
->qos_ctrl
= cpu_to_le16(7);
3649 ack_skb
= ieee80211_make_ack_skb(local
, skb
, cookie
, GFP_ATOMIC
);
3650 if (IS_ERR(ack_skb
)) {
3652 ret
= PTR_ERR(ack_skb
);
3657 ieee80211_xmit(sdata
, sta
, skb
);
3663 mutex_unlock(&local
->mtx
);
3668 static int ieee80211_cfg_get_channel(struct wiphy
*wiphy
,
3669 struct wireless_dev
*wdev
,
3670 struct cfg80211_chan_def
*chandef
)
3672 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
3673 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3674 struct ieee80211_chanctx_conf
*chanctx_conf
;
3678 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
3680 *chandef
= sdata
->vif
.bss_conf
.chandef
;
3682 } else if (local
->open_count
> 0 &&
3683 local
->open_count
== local
->monitors
&&
3684 sdata
->vif
.type
== NL80211_IFTYPE_MONITOR
) {
3685 if (local
->use_chanctx
)
3686 *chandef
= local
->monitor_chandef
;
3688 *chandef
= local
->_oper_chandef
;
3697 static void ieee80211_set_wakeup(struct wiphy
*wiphy
, bool enabled
)
3699 drv_set_wakeup(wiphy_priv(wiphy
), enabled
);
3703 static int ieee80211_set_qos_map(struct wiphy
*wiphy
,
3704 struct net_device
*dev
,
3705 struct cfg80211_qos_map
*qos_map
)
3707 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3708 struct mac80211_qos_map
*new_qos_map
, *old_qos_map
;
3711 new_qos_map
= kzalloc(sizeof(*new_qos_map
), GFP_KERNEL
);
3714 memcpy(&new_qos_map
->qos_map
, qos_map
, sizeof(*qos_map
));
3716 /* A NULL qos_map was passed to disable QoS mapping */
3720 old_qos_map
= sdata_dereference(sdata
->qos_map
, sdata
);
3721 rcu_assign_pointer(sdata
->qos_map
, new_qos_map
);
3723 kfree_rcu(old_qos_map
, rcu_head
);
3728 static int ieee80211_set_ap_chanwidth(struct wiphy
*wiphy
,
3729 struct net_device
*dev
,
3730 struct cfg80211_chan_def
*chandef
)
3732 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3736 ret
= ieee80211_vif_change_bandwidth(sdata
, chandef
, &changed
);
3738 ieee80211_bss_info_change_notify(sdata
, changed
);
3743 static int ieee80211_add_tx_ts(struct wiphy
*wiphy
, struct net_device
*dev
,
3744 u8 tsid
, const u8
*peer
, u8 up
,
3747 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3748 struct ieee80211_if_managed
*ifmgd
= &sdata
->u
.mgd
;
3749 int ac
= ieee802_1d_to_ac
[up
];
3751 if (sdata
->vif
.type
!= NL80211_IFTYPE_STATION
)
3754 if (!(sdata
->wmm_acm
& BIT(up
)))
3757 if (ifmgd
->tx_tspec
[ac
].admitted_time
)
3760 if (admitted_time
) {
3761 ifmgd
->tx_tspec
[ac
].admitted_time
= 32 * admitted_time
;
3762 ifmgd
->tx_tspec
[ac
].tsid
= tsid
;
3763 ifmgd
->tx_tspec
[ac
].up
= up
;
3769 static int ieee80211_del_tx_ts(struct wiphy
*wiphy
, struct net_device
*dev
,
3770 u8 tsid
, const u8
*peer
)
3772 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3773 struct ieee80211_if_managed
*ifmgd
= &sdata
->u
.mgd
;
3774 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3777 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++) {
3778 struct ieee80211_sta_tx_tspec
*tx_tspec
= &ifmgd
->tx_tspec
[ac
];
3780 /* skip unused entries */
3781 if (!tx_tspec
->admitted_time
)
3784 if (tx_tspec
->tsid
!= tsid
)
3787 /* due to this new packets will be reassigned to non-ACM ACs */
3790 /* Make sure that all packets have been sent to avoid to
3791 * restore the QoS params on packets that are still on the
3795 ieee80211_flush_queues(local
, sdata
, false);
3797 /* restore the normal QoS parameters
3798 * (unconditionally to avoid races)
3800 tx_tspec
->action
= TX_TSPEC_ACTION_STOP_DOWNGRADE
;
3801 tx_tspec
->downgraded
= false;
3802 ieee80211_sta_handle_tspec_ac_params(sdata
);
3804 /* finally clear all the data */
3805 memset(tx_tspec
, 0, sizeof(*tx_tspec
));
3813 const struct cfg80211_ops mac80211_config_ops
= {
3814 .add_virtual_intf
= ieee80211_add_iface
,
3815 .del_virtual_intf
= ieee80211_del_iface
,
3816 .change_virtual_intf
= ieee80211_change_iface
,
3817 .start_p2p_device
= ieee80211_start_p2p_device
,
3818 .stop_p2p_device
= ieee80211_stop_p2p_device
,
3819 .add_key
= ieee80211_add_key
,
3820 .del_key
= ieee80211_del_key
,
3821 .get_key
= ieee80211_get_key
,
3822 .set_default_key
= ieee80211_config_default_key
,
3823 .set_default_mgmt_key
= ieee80211_config_default_mgmt_key
,
3824 .start_ap
= ieee80211_start_ap
,
3825 .change_beacon
= ieee80211_change_beacon
,
3826 .stop_ap
= ieee80211_stop_ap
,
3827 .add_station
= ieee80211_add_station
,
3828 .del_station
= ieee80211_del_station
,
3829 .change_station
= ieee80211_change_station
,
3830 .get_station
= ieee80211_get_station
,
3831 .dump_station
= ieee80211_dump_station
,
3832 .dump_survey
= ieee80211_dump_survey
,
3833 #ifdef CONFIG_MAC80211_MESH
3834 .add_mpath
= ieee80211_add_mpath
,
3835 .del_mpath
= ieee80211_del_mpath
,
3836 .change_mpath
= ieee80211_change_mpath
,
3837 .get_mpath
= ieee80211_get_mpath
,
3838 .dump_mpath
= ieee80211_dump_mpath
,
3839 .get_mpp
= ieee80211_get_mpp
,
3840 .dump_mpp
= ieee80211_dump_mpp
,
3841 .update_mesh_config
= ieee80211_update_mesh_config
,
3842 .get_mesh_config
= ieee80211_get_mesh_config
,
3843 .join_mesh
= ieee80211_join_mesh
,
3844 .leave_mesh
= ieee80211_leave_mesh
,
3846 .join_ocb
= ieee80211_join_ocb
,
3847 .leave_ocb
= ieee80211_leave_ocb
,
3848 .change_bss
= ieee80211_change_bss
,
3849 .set_txq_params
= ieee80211_set_txq_params
,
3850 .set_monitor_channel
= ieee80211_set_monitor_channel
,
3851 .suspend
= ieee80211_suspend
,
3852 .resume
= ieee80211_resume
,
3853 .scan
= ieee80211_scan
,
3854 .sched_scan_start
= ieee80211_sched_scan_start
,
3855 .sched_scan_stop
= ieee80211_sched_scan_stop
,
3856 .auth
= ieee80211_auth
,
3857 .assoc
= ieee80211_assoc
,
3858 .deauth
= ieee80211_deauth
,
3859 .disassoc
= ieee80211_disassoc
,
3860 .join_ibss
= ieee80211_join_ibss
,
3861 .leave_ibss
= ieee80211_leave_ibss
,
3862 .set_mcast_rate
= ieee80211_set_mcast_rate
,
3863 .set_wiphy_params
= ieee80211_set_wiphy_params
,
3864 .set_tx_power
= ieee80211_set_tx_power
,
3865 .get_tx_power
= ieee80211_get_tx_power
,
3866 .set_wds_peer
= ieee80211_set_wds_peer
,
3867 .rfkill_poll
= ieee80211_rfkill_poll
,
3868 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd
)
3869 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump
)
3870 .set_power_mgmt
= ieee80211_set_power_mgmt
,
3871 .set_bitrate_mask
= ieee80211_set_bitrate_mask
,
3872 .remain_on_channel
= ieee80211_remain_on_channel
,
3873 .cancel_remain_on_channel
= ieee80211_cancel_remain_on_channel
,
3874 .mgmt_tx
= ieee80211_mgmt_tx
,
3875 .mgmt_tx_cancel_wait
= ieee80211_mgmt_tx_cancel_wait
,
3876 .set_cqm_rssi_config
= ieee80211_set_cqm_rssi_config
,
3877 .mgmt_frame_register
= ieee80211_mgmt_frame_register
,
3878 .set_antenna
= ieee80211_set_antenna
,
3879 .get_antenna
= ieee80211_get_antenna
,
3880 .set_rekey_data
= ieee80211_set_rekey_data
,
3881 .tdls_oper
= ieee80211_tdls_oper
,
3882 .tdls_mgmt
= ieee80211_tdls_mgmt
,
3883 .tdls_channel_switch
= ieee80211_tdls_channel_switch
,
3884 .tdls_cancel_channel_switch
= ieee80211_tdls_cancel_channel_switch
,
3885 .probe_client
= ieee80211_probe_client
,
3886 .set_noack_map
= ieee80211_set_noack_map
,
3888 .set_wakeup
= ieee80211_set_wakeup
,
3890 .get_channel
= ieee80211_cfg_get_channel
,
3891 .start_radar_detection
= ieee80211_start_radar_detection
,
3892 .channel_switch
= ieee80211_channel_switch
,
3893 .set_qos_map
= ieee80211_set_qos_map
,
3894 .set_ap_chanwidth
= ieee80211_set_ap_chanwidth
,
3895 .add_tx_ts
= ieee80211_add_tx_ts
,
3896 .del_tx_ts
= ieee80211_del_tx_ts
,