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 int sta_apply_parameters(struct ieee80211_local
*local
,
1023 struct sta_info
*sta
,
1024 struct station_parameters
*params
)
1027 struct ieee80211_supported_band
*sband
;
1028 struct ieee80211_sub_if_data
*sdata
= sta
->sdata
;
1029 enum ieee80211_band band
= ieee80211_get_sdata_band(sdata
);
1032 sband
= local
->hw
.wiphy
->bands
[band
];
1034 mask
= params
->sta_flags_mask
;
1035 set
= params
->sta_flags_set
;
1037 if (ieee80211_vif_is_mesh(&sdata
->vif
)) {
1039 * In mesh mode, ASSOCIATED isn't part of the nl80211
1040 * API but must follow AUTHENTICATED for driver state.
1042 if (mask
& BIT(NL80211_STA_FLAG_AUTHENTICATED
))
1043 mask
|= BIT(NL80211_STA_FLAG_ASSOCIATED
);
1044 if (set
& BIT(NL80211_STA_FLAG_AUTHENTICATED
))
1045 set
|= BIT(NL80211_STA_FLAG_ASSOCIATED
);
1046 } else if (test_sta_flag(sta
, WLAN_STA_TDLS_PEER
)) {
1048 * TDLS -- everything follows authorized, but
1049 * only becoming authorized is possible, not
1052 if (set
& BIT(NL80211_STA_FLAG_AUTHORIZED
)) {
1053 set
|= BIT(NL80211_STA_FLAG_AUTHENTICATED
) |
1054 BIT(NL80211_STA_FLAG_ASSOCIATED
);
1055 mask
|= BIT(NL80211_STA_FLAG_AUTHENTICATED
) |
1056 BIT(NL80211_STA_FLAG_ASSOCIATED
);
1060 if (mask
& BIT(NL80211_STA_FLAG_WME
) &&
1061 local
->hw
.queues
>= IEEE80211_NUM_ACS
)
1062 sta
->sta
.wme
= set
& BIT(NL80211_STA_FLAG_WME
);
1064 /* auth flags will be set later for TDLS stations */
1065 if (!test_sta_flag(sta
, WLAN_STA_TDLS_PEER
)) {
1066 ret
= sta_apply_auth_flags(local
, sta
, mask
, set
);
1071 if (mask
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
)) {
1072 if (set
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
))
1073 set_sta_flag(sta
, WLAN_STA_SHORT_PREAMBLE
);
1075 clear_sta_flag(sta
, WLAN_STA_SHORT_PREAMBLE
);
1078 if (mask
& BIT(NL80211_STA_FLAG_MFP
)) {
1079 sta
->sta
.mfp
= !!(set
& BIT(NL80211_STA_FLAG_MFP
));
1080 if (set
& BIT(NL80211_STA_FLAG_MFP
))
1081 set_sta_flag(sta
, WLAN_STA_MFP
);
1083 clear_sta_flag(sta
, WLAN_STA_MFP
);
1086 if (mask
& BIT(NL80211_STA_FLAG_TDLS_PEER
)) {
1087 if (set
& BIT(NL80211_STA_FLAG_TDLS_PEER
))
1088 set_sta_flag(sta
, WLAN_STA_TDLS_PEER
);
1090 clear_sta_flag(sta
, WLAN_STA_TDLS_PEER
);
1093 /* mark TDLS channel switch support, if the AP allows it */
1094 if (test_sta_flag(sta
, WLAN_STA_TDLS_PEER
) &&
1095 !sdata
->u
.mgd
.tdls_chan_switch_prohibited
&&
1096 params
->ext_capab_len
>= 4 &&
1097 params
->ext_capab
[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH
)
1098 set_sta_flag(sta
, WLAN_STA_TDLS_CHAN_SWITCH
);
1100 if (params
->sta_modify_mask
& STATION_PARAM_APPLY_UAPSD
) {
1101 sta
->sta
.uapsd_queues
= params
->uapsd_queues
;
1102 sta
->sta
.max_sp
= params
->max_sp
;
1106 * cfg80211 validates this (1-2007) and allows setting the AID
1107 * only when creating a new station entry
1110 sta
->sta
.aid
= params
->aid
;
1113 * Some of the following updates would be racy if called on an
1114 * existing station, via ieee80211_change_station(). However,
1115 * all such changes are rejected by cfg80211 except for updates
1116 * changing the supported rates on an existing but not yet used
1120 if (params
->listen_interval
>= 0)
1121 sta
->listen_interval
= params
->listen_interval
;
1123 if (params
->supported_rates
) {
1124 ieee80211_parse_bitrates(&sdata
->vif
.bss_conf
.chandef
,
1125 sband
, params
->supported_rates
,
1126 params
->supported_rates_len
,
1127 &sta
->sta
.supp_rates
[band
]);
1130 if (params
->ht_capa
)
1131 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata
, sband
,
1132 params
->ht_capa
, sta
);
1134 if (params
->vht_capa
)
1135 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata
, sband
,
1136 params
->vht_capa
, sta
);
1138 if (params
->opmode_notif_used
) {
1139 /* returned value is only needed for rc update, but the
1140 * rc isn't initialized here yet, so ignore it
1142 __ieee80211_vht_handle_opmode(sdata
, sta
,
1143 params
->opmode_notif
,
1147 if (ieee80211_vif_is_mesh(&sdata
->vif
)) {
1148 #ifdef CONFIG_MAC80211_MESH
1151 if (params
->sta_modify_mask
& STATION_PARAM_APPLY_PLINK_STATE
) {
1152 switch (params
->plink_state
) {
1153 case NL80211_PLINK_ESTAB
:
1154 if (sta
->plink_state
!= NL80211_PLINK_ESTAB
)
1155 changed
= mesh_plink_inc_estab_count(
1157 sta
->plink_state
= params
->plink_state
;
1159 ieee80211_mps_sta_status_update(sta
);
1160 changed
|= ieee80211_mps_set_sta_local_pm(sta
,
1161 sdata
->u
.mesh
.mshcfg
.power_mode
);
1163 case NL80211_PLINK_LISTEN
:
1164 case NL80211_PLINK_BLOCKED
:
1165 case NL80211_PLINK_OPN_SNT
:
1166 case NL80211_PLINK_OPN_RCVD
:
1167 case NL80211_PLINK_CNF_RCVD
:
1168 case NL80211_PLINK_HOLDING
:
1169 if (sta
->plink_state
== NL80211_PLINK_ESTAB
)
1170 changed
= mesh_plink_dec_estab_count(
1172 sta
->plink_state
= params
->plink_state
;
1174 ieee80211_mps_sta_status_update(sta
);
1175 changed
|= ieee80211_mps_set_sta_local_pm(sta
,
1176 NL80211_MESH_POWER_UNKNOWN
);
1184 switch (params
->plink_action
) {
1185 case NL80211_PLINK_ACTION_NO_ACTION
:
1188 case NL80211_PLINK_ACTION_OPEN
:
1189 changed
|= mesh_plink_open(sta
);
1191 case NL80211_PLINK_ACTION_BLOCK
:
1192 changed
|= mesh_plink_block(sta
);
1196 if (params
->local_pm
)
1198 ieee80211_mps_set_sta_local_pm(sta
,
1200 ieee80211_mbss_info_change_notify(sdata
, changed
);
1204 /* set the STA state after all sta info from usermode has been set */
1205 if (test_sta_flag(sta
, WLAN_STA_TDLS_PEER
)) {
1206 ret
= sta_apply_auth_flags(local
, sta
, mask
, set
);
1214 static int ieee80211_add_station(struct wiphy
*wiphy
, struct net_device
*dev
,
1216 struct station_parameters
*params
)
1218 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
1219 struct sta_info
*sta
;
1220 struct ieee80211_sub_if_data
*sdata
;
1225 sdata
= IEEE80211_DEV_TO_SUB_IF(params
->vlan
);
1227 if (sdata
->vif
.type
!= NL80211_IFTYPE_AP_VLAN
&&
1228 sdata
->vif
.type
!= NL80211_IFTYPE_AP
)
1231 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1233 if (ether_addr_equal(mac
, sdata
->vif
.addr
))
1236 if (is_multicast_ether_addr(mac
))
1239 sta
= sta_info_alloc(sdata
, mac
, GFP_KERNEL
);
1244 * defaults -- if userspace wants something else we'll
1245 * change it accordingly in sta_apply_parameters()
1247 if (!(params
->sta_flags_set
& BIT(NL80211_STA_FLAG_TDLS_PEER
))) {
1248 sta_info_pre_move_state(sta
, IEEE80211_STA_AUTH
);
1249 sta_info_pre_move_state(sta
, IEEE80211_STA_ASSOC
);
1251 sta
->sta
.tdls
= true;
1254 err
= sta_apply_parameters(local
, sta
, params
);
1256 sta_info_free(local
, sta
);
1261 * for TDLS, rate control should be initialized only when
1262 * rates are known and station is marked authorized
1264 if (!test_sta_flag(sta
, WLAN_STA_TDLS_PEER
))
1265 rate_control_rate_init(sta
);
1267 layer2_update
= sdata
->vif
.type
== NL80211_IFTYPE_AP_VLAN
||
1268 sdata
->vif
.type
== NL80211_IFTYPE_AP
;
1270 err
= sta_info_insert_rcu(sta
);
1277 ieee80211_send_layer2_update(sta
);
1284 static int ieee80211_del_station(struct wiphy
*wiphy
, struct net_device
*dev
,
1285 struct station_del_parameters
*params
)
1287 struct ieee80211_sub_if_data
*sdata
;
1289 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1292 return sta_info_destroy_addr_bss(sdata
, params
->mac
);
1294 sta_info_flush(sdata
);
1298 static int ieee80211_change_station(struct wiphy
*wiphy
,
1299 struct net_device
*dev
, const u8
*mac
,
1300 struct station_parameters
*params
)
1302 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1303 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
1304 struct sta_info
*sta
;
1305 struct ieee80211_sub_if_data
*vlansdata
;
1306 enum cfg80211_station_type statype
;
1309 mutex_lock(&local
->sta_mtx
);
1311 sta
= sta_info_get_bss(sdata
, mac
);
1317 switch (sdata
->vif
.type
) {
1318 case NL80211_IFTYPE_MESH_POINT
:
1319 if (sdata
->u
.mesh
.user_mpm
)
1320 statype
= CFG80211_STA_MESH_PEER_USER
;
1322 statype
= CFG80211_STA_MESH_PEER_KERNEL
;
1324 case NL80211_IFTYPE_ADHOC
:
1325 statype
= CFG80211_STA_IBSS
;
1327 case NL80211_IFTYPE_STATION
:
1328 if (!test_sta_flag(sta
, WLAN_STA_TDLS_PEER
)) {
1329 statype
= CFG80211_STA_AP_STA
;
1332 if (test_sta_flag(sta
, WLAN_STA_AUTHORIZED
))
1333 statype
= CFG80211_STA_TDLS_PEER_ACTIVE
;
1335 statype
= CFG80211_STA_TDLS_PEER_SETUP
;
1337 case NL80211_IFTYPE_AP
:
1338 case NL80211_IFTYPE_AP_VLAN
:
1339 statype
= CFG80211_STA_AP_CLIENT
;
1346 err
= cfg80211_check_station_change(wiphy
, params
, statype
);
1350 if (params
->vlan
&& params
->vlan
!= sta
->sdata
->dev
) {
1351 bool prev_4addr
= false;
1352 bool new_4addr
= false;
1354 vlansdata
= IEEE80211_DEV_TO_SUB_IF(params
->vlan
);
1356 if (params
->vlan
->ieee80211_ptr
->use_4addr
) {
1357 if (vlansdata
->u
.vlan
.sta
) {
1362 rcu_assign_pointer(vlansdata
->u
.vlan
.sta
, sta
);
1366 if (sta
->sdata
->vif
.type
== NL80211_IFTYPE_AP_VLAN
&&
1367 sta
->sdata
->u
.vlan
.sta
) {
1368 RCU_INIT_POINTER(sta
->sdata
->u
.vlan
.sta
, NULL
);
1372 sta
->sdata
= vlansdata
;
1373 ieee80211_check_fast_xmit(sta
);
1375 if (sta
->sta_state
== IEEE80211_STA_AUTHORIZED
&&
1376 prev_4addr
!= new_4addr
) {
1378 atomic_dec(&sta
->sdata
->bss
->num_mcast_sta
);
1380 atomic_inc(&sta
->sdata
->bss
->num_mcast_sta
);
1383 ieee80211_send_layer2_update(sta
);
1386 err
= sta_apply_parameters(local
, sta
, params
);
1390 mutex_unlock(&local
->sta_mtx
);
1392 if ((sdata
->vif
.type
== NL80211_IFTYPE_AP
||
1393 sdata
->vif
.type
== NL80211_IFTYPE_AP_VLAN
) &&
1394 sta
->known_smps_mode
!= sta
->sdata
->bss
->req_smps
&&
1395 test_sta_flag(sta
, WLAN_STA_AUTHORIZED
) &&
1396 sta_info_tx_streams(sta
) != 1) {
1398 "%pM just authorized and MIMO capable - update SMPS\n",
1400 ieee80211_send_smps_action(sta
->sdata
,
1401 sta
->sdata
->bss
->req_smps
,
1403 sta
->sdata
->vif
.bss_conf
.bssid
);
1406 if (sdata
->vif
.type
== NL80211_IFTYPE_STATION
&&
1407 params
->sta_flags_mask
& BIT(NL80211_STA_FLAG_AUTHORIZED
)) {
1408 ieee80211_recalc_ps(local
, -1);
1409 ieee80211_recalc_ps_vif(sdata
);
1414 mutex_unlock(&local
->sta_mtx
);
1418 #ifdef CONFIG_MAC80211_MESH
1419 static int ieee80211_add_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1420 const u8
*dst
, const u8
*next_hop
)
1422 struct ieee80211_sub_if_data
*sdata
;
1423 struct mesh_path
*mpath
;
1424 struct sta_info
*sta
;
1426 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1429 sta
= sta_info_get(sdata
, next_hop
);
1435 mpath
= mesh_path_add(sdata
, dst
);
1436 if (IS_ERR(mpath
)) {
1438 return PTR_ERR(mpath
);
1441 mesh_path_fix_nexthop(mpath
, sta
);
1447 static int ieee80211_del_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1450 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1453 return mesh_path_del(sdata
, dst
);
1455 mesh_path_flush_by_iface(sdata
);
1459 static int ieee80211_change_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1460 const u8
*dst
, const u8
*next_hop
)
1462 struct ieee80211_sub_if_data
*sdata
;
1463 struct mesh_path
*mpath
;
1464 struct sta_info
*sta
;
1466 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1470 sta
= sta_info_get(sdata
, next_hop
);
1476 mpath
= mesh_path_lookup(sdata
, dst
);
1482 mesh_path_fix_nexthop(mpath
, sta
);
1488 static void mpath_set_pinfo(struct mesh_path
*mpath
, u8
*next_hop
,
1489 struct mpath_info
*pinfo
)
1491 struct sta_info
*next_hop_sta
= rcu_dereference(mpath
->next_hop
);
1494 memcpy(next_hop
, next_hop_sta
->sta
.addr
, ETH_ALEN
);
1496 eth_zero_addr(next_hop
);
1498 memset(pinfo
, 0, sizeof(*pinfo
));
1500 pinfo
->generation
= mesh_paths_generation
;
1502 pinfo
->filled
= MPATH_INFO_FRAME_QLEN
|
1505 MPATH_INFO_EXPTIME
|
1506 MPATH_INFO_DISCOVERY_TIMEOUT
|
1507 MPATH_INFO_DISCOVERY_RETRIES
|
1510 pinfo
->frame_qlen
= mpath
->frame_queue
.qlen
;
1511 pinfo
->sn
= mpath
->sn
;
1512 pinfo
->metric
= mpath
->metric
;
1513 if (time_before(jiffies
, mpath
->exp_time
))
1514 pinfo
->exptime
= jiffies_to_msecs(mpath
->exp_time
- jiffies
);
1515 pinfo
->discovery_timeout
=
1516 jiffies_to_msecs(mpath
->discovery_timeout
);
1517 pinfo
->discovery_retries
= mpath
->discovery_retries
;
1518 if (mpath
->flags
& MESH_PATH_ACTIVE
)
1519 pinfo
->flags
|= NL80211_MPATH_FLAG_ACTIVE
;
1520 if (mpath
->flags
& MESH_PATH_RESOLVING
)
1521 pinfo
->flags
|= NL80211_MPATH_FLAG_RESOLVING
;
1522 if (mpath
->flags
& MESH_PATH_SN_VALID
)
1523 pinfo
->flags
|= NL80211_MPATH_FLAG_SN_VALID
;
1524 if (mpath
->flags
& MESH_PATH_FIXED
)
1525 pinfo
->flags
|= NL80211_MPATH_FLAG_FIXED
;
1526 if (mpath
->flags
& MESH_PATH_RESOLVED
)
1527 pinfo
->flags
|= NL80211_MPATH_FLAG_RESOLVED
;
1530 static int ieee80211_get_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1531 u8
*dst
, u8
*next_hop
, struct mpath_info
*pinfo
)
1534 struct ieee80211_sub_if_data
*sdata
;
1535 struct mesh_path
*mpath
;
1537 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1540 mpath
= mesh_path_lookup(sdata
, dst
);
1545 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1546 mpath_set_pinfo(mpath
, next_hop
, pinfo
);
1551 static int ieee80211_dump_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1552 int idx
, u8
*dst
, u8
*next_hop
,
1553 struct mpath_info
*pinfo
)
1555 struct ieee80211_sub_if_data
*sdata
;
1556 struct mesh_path
*mpath
;
1558 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1561 mpath
= mesh_path_lookup_by_idx(sdata
, idx
);
1566 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1567 mpath_set_pinfo(mpath
, next_hop
, pinfo
);
1572 static void mpp_set_pinfo(struct mesh_path
*mpath
, u8
*mpp
,
1573 struct mpath_info
*pinfo
)
1575 memset(pinfo
, 0, sizeof(*pinfo
));
1576 memcpy(mpp
, mpath
->mpp
, ETH_ALEN
);
1578 pinfo
->generation
= mpp_paths_generation
;
1581 static int ieee80211_get_mpp(struct wiphy
*wiphy
, struct net_device
*dev
,
1582 u8
*dst
, u8
*mpp
, struct mpath_info
*pinfo
)
1585 struct ieee80211_sub_if_data
*sdata
;
1586 struct mesh_path
*mpath
;
1588 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1591 mpath
= mpp_path_lookup(sdata
, dst
);
1596 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1597 mpp_set_pinfo(mpath
, mpp
, pinfo
);
1602 static int ieee80211_dump_mpp(struct wiphy
*wiphy
, struct net_device
*dev
,
1603 int idx
, u8
*dst
, u8
*mpp
,
1604 struct mpath_info
*pinfo
)
1606 struct ieee80211_sub_if_data
*sdata
;
1607 struct mesh_path
*mpath
;
1609 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1612 mpath
= mpp_path_lookup_by_idx(sdata
, idx
);
1617 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1618 mpp_set_pinfo(mpath
, mpp
, pinfo
);
1623 static int ieee80211_get_mesh_config(struct wiphy
*wiphy
,
1624 struct net_device
*dev
,
1625 struct mesh_config
*conf
)
1627 struct ieee80211_sub_if_data
*sdata
;
1628 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1630 memcpy(conf
, &(sdata
->u
.mesh
.mshcfg
), sizeof(struct mesh_config
));
1634 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm
, u32 mask
)
1636 return (mask
>> (parm
-1)) & 0x1;
1639 static int copy_mesh_setup(struct ieee80211_if_mesh
*ifmsh
,
1640 const struct mesh_setup
*setup
)
1644 struct ieee80211_sub_if_data
*sdata
= container_of(ifmsh
,
1645 struct ieee80211_sub_if_data
, u
.mesh
);
1647 /* allocate information elements */
1651 if (setup
->ie_len
) {
1652 new_ie
= kmemdup(setup
->ie
, setup
->ie_len
,
1657 ifmsh
->ie_len
= setup
->ie_len
;
1661 /* now copy the rest of the setup parameters */
1662 ifmsh
->mesh_id_len
= setup
->mesh_id_len
;
1663 memcpy(ifmsh
->mesh_id
, setup
->mesh_id
, ifmsh
->mesh_id_len
);
1664 ifmsh
->mesh_sp_id
= setup
->sync_method
;
1665 ifmsh
->mesh_pp_id
= setup
->path_sel_proto
;
1666 ifmsh
->mesh_pm_id
= setup
->path_metric
;
1667 ifmsh
->user_mpm
= setup
->user_mpm
;
1668 ifmsh
->mesh_auth_id
= setup
->auth_id
;
1669 ifmsh
->security
= IEEE80211_MESH_SEC_NONE
;
1670 if (setup
->is_authenticated
)
1671 ifmsh
->security
|= IEEE80211_MESH_SEC_AUTHED
;
1672 if (setup
->is_secure
)
1673 ifmsh
->security
|= IEEE80211_MESH_SEC_SECURED
;
1675 /* mcast rate setting in Mesh Node */
1676 memcpy(sdata
->vif
.bss_conf
.mcast_rate
, setup
->mcast_rate
,
1677 sizeof(setup
->mcast_rate
));
1678 sdata
->vif
.bss_conf
.basic_rates
= setup
->basic_rates
;
1680 sdata
->vif
.bss_conf
.beacon_int
= setup
->beacon_interval
;
1681 sdata
->vif
.bss_conf
.dtim_period
= setup
->dtim_period
;
1686 static int ieee80211_update_mesh_config(struct wiphy
*wiphy
,
1687 struct net_device
*dev
, u32 mask
,
1688 const struct mesh_config
*nconf
)
1690 struct mesh_config
*conf
;
1691 struct ieee80211_sub_if_data
*sdata
;
1692 struct ieee80211_if_mesh
*ifmsh
;
1694 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1695 ifmsh
= &sdata
->u
.mesh
;
1697 /* Set the config options which we are interested in setting */
1698 conf
= &(sdata
->u
.mesh
.mshcfg
);
1699 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT
, mask
))
1700 conf
->dot11MeshRetryTimeout
= nconf
->dot11MeshRetryTimeout
;
1701 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT
, mask
))
1702 conf
->dot11MeshConfirmTimeout
= nconf
->dot11MeshConfirmTimeout
;
1703 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT
, mask
))
1704 conf
->dot11MeshHoldingTimeout
= nconf
->dot11MeshHoldingTimeout
;
1705 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS
, mask
))
1706 conf
->dot11MeshMaxPeerLinks
= nconf
->dot11MeshMaxPeerLinks
;
1707 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES
, mask
))
1708 conf
->dot11MeshMaxRetries
= nconf
->dot11MeshMaxRetries
;
1709 if (_chg_mesh_attr(NL80211_MESHCONF_TTL
, mask
))
1710 conf
->dot11MeshTTL
= nconf
->dot11MeshTTL
;
1711 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL
, mask
))
1712 conf
->element_ttl
= nconf
->element_ttl
;
1713 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS
, mask
)) {
1714 if (ifmsh
->user_mpm
)
1716 conf
->auto_open_plinks
= nconf
->auto_open_plinks
;
1718 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR
, mask
))
1719 conf
->dot11MeshNbrOffsetMaxNeighbor
=
1720 nconf
->dot11MeshNbrOffsetMaxNeighbor
;
1721 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES
, mask
))
1722 conf
->dot11MeshHWMPmaxPREQretries
=
1723 nconf
->dot11MeshHWMPmaxPREQretries
;
1724 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME
, mask
))
1725 conf
->path_refresh_time
= nconf
->path_refresh_time
;
1726 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT
, mask
))
1727 conf
->min_discovery_timeout
= nconf
->min_discovery_timeout
;
1728 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT
, mask
))
1729 conf
->dot11MeshHWMPactivePathTimeout
=
1730 nconf
->dot11MeshHWMPactivePathTimeout
;
1731 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL
, mask
))
1732 conf
->dot11MeshHWMPpreqMinInterval
=
1733 nconf
->dot11MeshHWMPpreqMinInterval
;
1734 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL
, mask
))
1735 conf
->dot11MeshHWMPperrMinInterval
=
1736 nconf
->dot11MeshHWMPperrMinInterval
;
1737 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME
,
1739 conf
->dot11MeshHWMPnetDiameterTraversalTime
=
1740 nconf
->dot11MeshHWMPnetDiameterTraversalTime
;
1741 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE
, mask
)) {
1742 conf
->dot11MeshHWMPRootMode
= nconf
->dot11MeshHWMPRootMode
;
1743 ieee80211_mesh_root_setup(ifmsh
);
1745 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS
, mask
)) {
1746 /* our current gate announcement implementation rides on root
1747 * announcements, so require this ifmsh to also be a root node
1749 if (nconf
->dot11MeshGateAnnouncementProtocol
&&
1750 !(conf
->dot11MeshHWMPRootMode
> IEEE80211_ROOTMODE_ROOT
)) {
1751 conf
->dot11MeshHWMPRootMode
= IEEE80211_PROACTIVE_RANN
;
1752 ieee80211_mesh_root_setup(ifmsh
);
1754 conf
->dot11MeshGateAnnouncementProtocol
=
1755 nconf
->dot11MeshGateAnnouncementProtocol
;
1757 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL
, mask
))
1758 conf
->dot11MeshHWMPRannInterval
=
1759 nconf
->dot11MeshHWMPRannInterval
;
1760 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING
, mask
))
1761 conf
->dot11MeshForwarding
= nconf
->dot11MeshForwarding
;
1762 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD
, mask
)) {
1763 /* our RSSI threshold implementation is supported only for
1764 * devices that report signal in dBm.
1766 if (!ieee80211_hw_check(&sdata
->local
->hw
, SIGNAL_DBM
))
1768 conf
->rssi_threshold
= nconf
->rssi_threshold
;
1770 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE
, mask
)) {
1771 conf
->ht_opmode
= nconf
->ht_opmode
;
1772 sdata
->vif
.bss_conf
.ht_operation_mode
= nconf
->ht_opmode
;
1773 ieee80211_bss_info_change_notify(sdata
, BSS_CHANGED_HT
);
1775 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT
, mask
))
1776 conf
->dot11MeshHWMPactivePathToRootTimeout
=
1777 nconf
->dot11MeshHWMPactivePathToRootTimeout
;
1778 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL
, mask
))
1779 conf
->dot11MeshHWMProotInterval
=
1780 nconf
->dot11MeshHWMProotInterval
;
1781 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL
, mask
))
1782 conf
->dot11MeshHWMPconfirmationInterval
=
1783 nconf
->dot11MeshHWMPconfirmationInterval
;
1784 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE
, mask
)) {
1785 conf
->power_mode
= nconf
->power_mode
;
1786 ieee80211_mps_local_status_update(sdata
);
1788 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW
, mask
))
1789 conf
->dot11MeshAwakeWindowDuration
=
1790 nconf
->dot11MeshAwakeWindowDuration
;
1791 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT
, mask
))
1792 conf
->plink_timeout
= nconf
->plink_timeout
;
1793 ieee80211_mbss_info_change_notify(sdata
, BSS_CHANGED_BEACON
);
1797 static int ieee80211_join_mesh(struct wiphy
*wiphy
, struct net_device
*dev
,
1798 const struct mesh_config
*conf
,
1799 const struct mesh_setup
*setup
)
1801 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1802 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
1805 memcpy(&ifmsh
->mshcfg
, conf
, sizeof(struct mesh_config
));
1806 err
= copy_mesh_setup(ifmsh
, setup
);
1810 /* can mesh use other SMPS modes? */
1811 sdata
->smps_mode
= IEEE80211_SMPS_OFF
;
1812 sdata
->needed_rx_chains
= sdata
->local
->rx_chains
;
1814 mutex_lock(&sdata
->local
->mtx
);
1815 err
= ieee80211_vif_use_channel(sdata
, &setup
->chandef
,
1816 IEEE80211_CHANCTX_SHARED
);
1817 mutex_unlock(&sdata
->local
->mtx
);
1821 return ieee80211_start_mesh(sdata
);
1824 static int ieee80211_leave_mesh(struct wiphy
*wiphy
, struct net_device
*dev
)
1826 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1828 ieee80211_stop_mesh(sdata
);
1829 mutex_lock(&sdata
->local
->mtx
);
1830 ieee80211_vif_release_channel(sdata
);
1831 mutex_unlock(&sdata
->local
->mtx
);
1837 static int ieee80211_change_bss(struct wiphy
*wiphy
,
1838 struct net_device
*dev
,
1839 struct bss_parameters
*params
)
1841 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1842 enum ieee80211_band band
;
1845 if (!sdata_dereference(sdata
->u
.ap
.beacon
, sdata
))
1848 band
= ieee80211_get_sdata_band(sdata
);
1850 if (params
->use_cts_prot
>= 0) {
1851 sdata
->vif
.bss_conf
.use_cts_prot
= params
->use_cts_prot
;
1852 changed
|= BSS_CHANGED_ERP_CTS_PROT
;
1854 if (params
->use_short_preamble
>= 0) {
1855 sdata
->vif
.bss_conf
.use_short_preamble
=
1856 params
->use_short_preamble
;
1857 changed
|= BSS_CHANGED_ERP_PREAMBLE
;
1860 if (!sdata
->vif
.bss_conf
.use_short_slot
&&
1861 band
== IEEE80211_BAND_5GHZ
) {
1862 sdata
->vif
.bss_conf
.use_short_slot
= true;
1863 changed
|= BSS_CHANGED_ERP_SLOT
;
1866 if (params
->use_short_slot_time
>= 0) {
1867 sdata
->vif
.bss_conf
.use_short_slot
=
1868 params
->use_short_slot_time
;
1869 changed
|= BSS_CHANGED_ERP_SLOT
;
1872 if (params
->basic_rates
) {
1873 ieee80211_parse_bitrates(&sdata
->vif
.bss_conf
.chandef
,
1875 params
->basic_rates
,
1876 params
->basic_rates_len
,
1877 &sdata
->vif
.bss_conf
.basic_rates
);
1878 changed
|= BSS_CHANGED_BASIC_RATES
;
1881 if (params
->ap_isolate
>= 0) {
1882 if (params
->ap_isolate
)
1883 sdata
->flags
|= IEEE80211_SDATA_DONT_BRIDGE_PACKETS
;
1885 sdata
->flags
&= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS
;
1888 if (params
->ht_opmode
>= 0) {
1889 sdata
->vif
.bss_conf
.ht_operation_mode
=
1890 (u16
) params
->ht_opmode
;
1891 changed
|= BSS_CHANGED_HT
;
1894 if (params
->p2p_ctwindow
>= 0) {
1895 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
&=
1896 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK
;
1897 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
|=
1898 params
->p2p_ctwindow
& IEEE80211_P2P_OPPPS_CTWINDOW_MASK
;
1899 changed
|= BSS_CHANGED_P2P_PS
;
1902 if (params
->p2p_opp_ps
> 0) {
1903 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
|=
1904 IEEE80211_P2P_OPPPS_ENABLE_BIT
;
1905 changed
|= BSS_CHANGED_P2P_PS
;
1906 } else if (params
->p2p_opp_ps
== 0) {
1907 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
&=
1908 ~IEEE80211_P2P_OPPPS_ENABLE_BIT
;
1909 changed
|= BSS_CHANGED_P2P_PS
;
1912 ieee80211_bss_info_change_notify(sdata
, changed
);
1917 static int ieee80211_set_txq_params(struct wiphy
*wiphy
,
1918 struct net_device
*dev
,
1919 struct ieee80211_txq_params
*params
)
1921 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
1922 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1923 struct ieee80211_tx_queue_params p
;
1925 if (!local
->ops
->conf_tx
)
1928 if (local
->hw
.queues
< IEEE80211_NUM_ACS
)
1931 memset(&p
, 0, sizeof(p
));
1932 p
.aifs
= params
->aifs
;
1933 p
.cw_max
= params
->cwmax
;
1934 p
.cw_min
= params
->cwmin
;
1935 p
.txop
= params
->txop
;
1938 * Setting tx queue params disables u-apsd because it's only
1939 * called in master mode.
1943 sdata
->tx_conf
[params
->ac
] = p
;
1944 if (drv_conf_tx(local
, sdata
, params
->ac
, &p
)) {
1945 wiphy_debug(local
->hw
.wiphy
,
1946 "failed to set TX queue parameters for AC %d\n",
1951 ieee80211_bss_info_change_notify(sdata
, BSS_CHANGED_QOS
);
1957 static int ieee80211_suspend(struct wiphy
*wiphy
,
1958 struct cfg80211_wowlan
*wowlan
)
1960 return __ieee80211_suspend(wiphy_priv(wiphy
), wowlan
);
1963 static int ieee80211_resume(struct wiphy
*wiphy
)
1965 return __ieee80211_resume(wiphy_priv(wiphy
));
1968 #define ieee80211_suspend NULL
1969 #define ieee80211_resume NULL
1972 static int ieee80211_scan(struct wiphy
*wiphy
,
1973 struct cfg80211_scan_request
*req
)
1975 struct ieee80211_sub_if_data
*sdata
;
1977 sdata
= IEEE80211_WDEV_TO_SUB_IF(req
->wdev
);
1979 switch (ieee80211_vif_type_p2p(&sdata
->vif
)) {
1980 case NL80211_IFTYPE_STATION
:
1981 case NL80211_IFTYPE_ADHOC
:
1982 case NL80211_IFTYPE_MESH_POINT
:
1983 case NL80211_IFTYPE_P2P_CLIENT
:
1984 case NL80211_IFTYPE_P2P_DEVICE
:
1986 case NL80211_IFTYPE_P2P_GO
:
1987 if (sdata
->local
->ops
->hw_scan
)
1990 * FIXME: implement NoA while scanning in software,
1991 * for now fall through to allow scanning only when
1992 * beaconing hasn't been configured yet
1994 case NL80211_IFTYPE_AP
:
1996 * If the scan has been forced (and the driver supports
1997 * forcing), don't care about being beaconing already.
1998 * This will create problems to the attached stations (e.g. all
1999 * the frames sent while scanning on other channel will be
2002 if (sdata
->u
.ap
.beacon
&&
2003 (!(wiphy
->features
& NL80211_FEATURE_AP_SCAN
) ||
2004 !(req
->flags
& NL80211_SCAN_FLAG_AP
)))
2011 return ieee80211_request_scan(sdata
, req
);
2015 ieee80211_sched_scan_start(struct wiphy
*wiphy
,
2016 struct net_device
*dev
,
2017 struct cfg80211_sched_scan_request
*req
)
2019 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2021 if (!sdata
->local
->ops
->sched_scan_start
)
2024 return ieee80211_request_sched_scan_start(sdata
, req
);
2028 ieee80211_sched_scan_stop(struct wiphy
*wiphy
, struct net_device
*dev
)
2030 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2032 if (!sdata
->local
->ops
->sched_scan_stop
)
2035 return ieee80211_request_sched_scan_stop(sdata
);
2038 static int ieee80211_auth(struct wiphy
*wiphy
, struct net_device
*dev
,
2039 struct cfg80211_auth_request
*req
)
2041 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2044 static int ieee80211_assoc(struct wiphy
*wiphy
, struct net_device
*dev
,
2045 struct cfg80211_assoc_request
*req
)
2047 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2050 static int ieee80211_deauth(struct wiphy
*wiphy
, struct net_device
*dev
,
2051 struct cfg80211_deauth_request
*req
)
2053 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2056 static int ieee80211_disassoc(struct wiphy
*wiphy
, struct net_device
*dev
,
2057 struct cfg80211_disassoc_request
*req
)
2059 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2062 static int ieee80211_join_ibss(struct wiphy
*wiphy
, struct net_device
*dev
,
2063 struct cfg80211_ibss_params
*params
)
2065 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev
), params
);
2068 static int ieee80211_leave_ibss(struct wiphy
*wiphy
, struct net_device
*dev
)
2070 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev
));
2073 static int ieee80211_join_ocb(struct wiphy
*wiphy
, struct net_device
*dev
,
2074 struct ocb_setup
*setup
)
2076 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev
), setup
);
2079 static int ieee80211_leave_ocb(struct wiphy
*wiphy
, struct net_device
*dev
)
2081 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev
));
2084 static int ieee80211_set_mcast_rate(struct wiphy
*wiphy
, struct net_device
*dev
,
2085 int rate
[IEEE80211_NUM_BANDS
])
2087 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2089 memcpy(sdata
->vif
.bss_conf
.mcast_rate
, rate
,
2090 sizeof(int) * IEEE80211_NUM_BANDS
);
2095 static int ieee80211_set_wiphy_params(struct wiphy
*wiphy
, u32 changed
)
2097 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2100 if (changed
& WIPHY_PARAM_FRAG_THRESHOLD
) {
2101 ieee80211_check_fast_xmit_all(local
);
2103 err
= drv_set_frag_threshold(local
, wiphy
->frag_threshold
);
2106 ieee80211_check_fast_xmit_all(local
);
2111 if ((changed
& WIPHY_PARAM_COVERAGE_CLASS
) ||
2112 (changed
& WIPHY_PARAM_DYN_ACK
)) {
2115 coverage_class
= changed
& WIPHY_PARAM_COVERAGE_CLASS
?
2116 wiphy
->coverage_class
: -1;
2117 err
= drv_set_coverage_class(local
, coverage_class
);
2123 if (changed
& WIPHY_PARAM_RTS_THRESHOLD
) {
2124 err
= drv_set_rts_threshold(local
, wiphy
->rts_threshold
);
2130 if (changed
& WIPHY_PARAM_RETRY_SHORT
) {
2131 if (wiphy
->retry_short
> IEEE80211_MAX_TX_RETRY
)
2133 local
->hw
.conf
.short_frame_max_tx_count
= wiphy
->retry_short
;
2135 if (changed
& WIPHY_PARAM_RETRY_LONG
) {
2136 if (wiphy
->retry_long
> IEEE80211_MAX_TX_RETRY
)
2138 local
->hw
.conf
.long_frame_max_tx_count
= wiphy
->retry_long
;
2141 (WIPHY_PARAM_RETRY_SHORT
| WIPHY_PARAM_RETRY_LONG
))
2142 ieee80211_hw_config(local
, IEEE80211_CONF_CHANGE_RETRY_LIMITS
);
2147 static int ieee80211_set_tx_power(struct wiphy
*wiphy
,
2148 struct wireless_dev
*wdev
,
2149 enum nl80211_tx_power_setting type
, int mbm
)
2151 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2152 struct ieee80211_sub_if_data
*sdata
;
2153 enum nl80211_tx_power_setting txp_type
= type
;
2154 bool update_txp_type
= false;
2157 sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2160 case NL80211_TX_POWER_AUTOMATIC
:
2161 sdata
->user_power_level
= IEEE80211_UNSET_POWER_LEVEL
;
2162 txp_type
= NL80211_TX_POWER_LIMITED
;
2164 case NL80211_TX_POWER_LIMITED
:
2165 case NL80211_TX_POWER_FIXED
:
2166 if (mbm
< 0 || (mbm
% 100))
2168 sdata
->user_power_level
= MBM_TO_DBM(mbm
);
2172 if (txp_type
!= sdata
->vif
.bss_conf
.txpower_type
) {
2173 update_txp_type
= true;
2174 sdata
->vif
.bss_conf
.txpower_type
= txp_type
;
2177 ieee80211_recalc_txpower(sdata
, update_txp_type
);
2183 case NL80211_TX_POWER_AUTOMATIC
:
2184 local
->user_power_level
= IEEE80211_UNSET_POWER_LEVEL
;
2185 txp_type
= NL80211_TX_POWER_LIMITED
;
2187 case NL80211_TX_POWER_LIMITED
:
2188 case NL80211_TX_POWER_FIXED
:
2189 if (mbm
< 0 || (mbm
% 100))
2191 local
->user_power_level
= MBM_TO_DBM(mbm
);
2195 mutex_lock(&local
->iflist_mtx
);
2196 list_for_each_entry(sdata
, &local
->interfaces
, list
) {
2197 sdata
->user_power_level
= local
->user_power_level
;
2198 if (txp_type
!= sdata
->vif
.bss_conf
.txpower_type
)
2199 update_txp_type
= true;
2200 sdata
->vif
.bss_conf
.txpower_type
= txp_type
;
2202 list_for_each_entry(sdata
, &local
->interfaces
, list
)
2203 ieee80211_recalc_txpower(sdata
, update_txp_type
);
2204 mutex_unlock(&local
->iflist_mtx
);
2209 static int ieee80211_get_tx_power(struct wiphy
*wiphy
,
2210 struct wireless_dev
*wdev
,
2213 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2214 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2216 if (local
->ops
->get_txpower
)
2217 return drv_get_txpower(local
, sdata
, dbm
);
2219 if (!local
->use_chanctx
)
2220 *dbm
= local
->hw
.conf
.power_level
;
2222 *dbm
= sdata
->vif
.bss_conf
.txpower
;
2227 static int ieee80211_set_wds_peer(struct wiphy
*wiphy
, struct net_device
*dev
,
2230 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2232 memcpy(&sdata
->u
.wds
.remote_addr
, addr
, ETH_ALEN
);
2237 static void ieee80211_rfkill_poll(struct wiphy
*wiphy
)
2239 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2241 drv_rfkill_poll(local
);
2244 #ifdef CONFIG_NL80211_TESTMODE
2245 static int ieee80211_testmode_cmd(struct wiphy
*wiphy
,
2246 struct wireless_dev
*wdev
,
2247 void *data
, int len
)
2249 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2250 struct ieee80211_vif
*vif
= NULL
;
2252 if (!local
->ops
->testmode_cmd
)
2256 struct ieee80211_sub_if_data
*sdata
;
2258 sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2259 if (sdata
->flags
& IEEE80211_SDATA_IN_DRIVER
)
2263 return local
->ops
->testmode_cmd(&local
->hw
, vif
, data
, len
);
2266 static int ieee80211_testmode_dump(struct wiphy
*wiphy
,
2267 struct sk_buff
*skb
,
2268 struct netlink_callback
*cb
,
2269 void *data
, int len
)
2271 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2273 if (!local
->ops
->testmode_dump
)
2276 return local
->ops
->testmode_dump(&local
->hw
, skb
, cb
, data
, len
);
2280 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data
*sdata
,
2281 enum ieee80211_smps_mode smps_mode
)
2283 struct sta_info
*sta
;
2284 enum ieee80211_smps_mode old_req
;
2286 if (WARN_ON_ONCE(sdata
->vif
.type
!= NL80211_IFTYPE_AP
))
2289 if (sdata
->vif
.bss_conf
.chandef
.width
== NL80211_CHAN_WIDTH_20_NOHT
)
2292 old_req
= sdata
->u
.ap
.req_smps
;
2293 sdata
->u
.ap
.req_smps
= smps_mode
;
2295 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2296 if (old_req
== smps_mode
||
2297 smps_mode
== IEEE80211_SMPS_AUTOMATIC
)
2300 /* If no associated stations, there's no need to do anything */
2301 if (!atomic_read(&sdata
->u
.ap
.num_mcast_sta
)) {
2302 sdata
->smps_mode
= smps_mode
;
2303 ieee80211_queue_work(&sdata
->local
->hw
, &sdata
->recalc_smps
);
2308 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2309 smps_mode
, atomic_read(&sdata
->u
.ap
.num_mcast_sta
));
2311 mutex_lock(&sdata
->local
->sta_mtx
);
2312 list_for_each_entry(sta
, &sdata
->local
->sta_list
, list
) {
2314 * Only stations associated to our AP and
2317 if (sta
->sdata
->bss
!= &sdata
->u
.ap
)
2320 /* This station doesn't support MIMO - skip it */
2321 if (sta_info_tx_streams(sta
) == 1)
2325 * Don't wake up a STA just to send the action frame
2326 * unless we are getting more restrictive.
2328 if (test_sta_flag(sta
, WLAN_STA_PS_STA
) &&
2329 !ieee80211_smps_is_restrictive(sta
->known_smps_mode
,
2331 ht_dbg(sdata
, "Won't send SMPS to sleeping STA %pM\n",
2337 * If the STA is not authorized, wait until it gets
2338 * authorized and the action frame will be sent then.
2340 if (!test_sta_flag(sta
, WLAN_STA_AUTHORIZED
))
2343 ht_dbg(sdata
, "Sending SMPS to %pM\n", sta
->sta
.addr
);
2344 ieee80211_send_smps_action(sdata
, smps_mode
, sta
->sta
.addr
,
2345 sdata
->vif
.bss_conf
.bssid
);
2347 mutex_unlock(&sdata
->local
->sta_mtx
);
2349 sdata
->smps_mode
= smps_mode
;
2350 ieee80211_queue_work(&sdata
->local
->hw
, &sdata
->recalc_smps
);
2355 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data
*sdata
,
2356 enum ieee80211_smps_mode smps_mode
)
2359 enum ieee80211_smps_mode old_req
;
2362 lockdep_assert_held(&sdata
->wdev
.mtx
);
2364 if (WARN_ON_ONCE(sdata
->vif
.type
!= NL80211_IFTYPE_STATION
))
2367 old_req
= sdata
->u
.mgd
.req_smps
;
2368 sdata
->u
.mgd
.req_smps
= smps_mode
;
2370 if (old_req
== smps_mode
&&
2371 smps_mode
!= IEEE80211_SMPS_AUTOMATIC
)
2375 * If not associated, or current association is not an HT
2376 * association, there's no need to do anything, just store
2377 * the new value until we associate.
2379 if (!sdata
->u
.mgd
.associated
||
2380 sdata
->vif
.bss_conf
.chandef
.width
== NL80211_CHAN_WIDTH_20_NOHT
)
2383 ap
= sdata
->u
.mgd
.associated
->bssid
;
2385 if (smps_mode
== IEEE80211_SMPS_AUTOMATIC
) {
2386 if (sdata
->u
.mgd
.powersave
)
2387 smps_mode
= IEEE80211_SMPS_DYNAMIC
;
2389 smps_mode
= IEEE80211_SMPS_OFF
;
2392 /* send SM PS frame to AP */
2393 err
= ieee80211_send_smps_action(sdata
, smps_mode
,
2396 sdata
->u
.mgd
.req_smps
= old_req
;
2401 static int ieee80211_set_power_mgmt(struct wiphy
*wiphy
, struct net_device
*dev
,
2402 bool enabled
, int timeout
)
2404 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2405 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
2407 if (sdata
->vif
.type
!= NL80211_IFTYPE_STATION
)
2410 if (!ieee80211_hw_check(&local
->hw
, SUPPORTS_PS
))
2413 if (enabled
== sdata
->u
.mgd
.powersave
&&
2414 timeout
== local
->dynamic_ps_forced_timeout
)
2417 sdata
->u
.mgd
.powersave
= enabled
;
2418 local
->dynamic_ps_forced_timeout
= timeout
;
2420 /* no change, but if automatic follow powersave */
2422 __ieee80211_request_smps_mgd(sdata
, sdata
->u
.mgd
.req_smps
);
2423 sdata_unlock(sdata
);
2425 if (ieee80211_hw_check(&local
->hw
, SUPPORTS_DYNAMIC_PS
))
2426 ieee80211_hw_config(local
, IEEE80211_CONF_CHANGE_PS
);
2428 ieee80211_recalc_ps(local
, -1);
2429 ieee80211_recalc_ps_vif(sdata
);
2434 static int ieee80211_set_cqm_rssi_config(struct wiphy
*wiphy
,
2435 struct net_device
*dev
,
2436 s32 rssi_thold
, u32 rssi_hyst
)
2438 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2439 struct ieee80211_vif
*vif
= &sdata
->vif
;
2440 struct ieee80211_bss_conf
*bss_conf
= &vif
->bss_conf
;
2442 if (rssi_thold
== bss_conf
->cqm_rssi_thold
&&
2443 rssi_hyst
== bss_conf
->cqm_rssi_hyst
)
2446 bss_conf
->cqm_rssi_thold
= rssi_thold
;
2447 bss_conf
->cqm_rssi_hyst
= rssi_hyst
;
2449 /* tell the driver upon association, unless already associated */
2450 if (sdata
->u
.mgd
.associated
&&
2451 sdata
->vif
.driver_flags
& IEEE80211_VIF_SUPPORTS_CQM_RSSI
)
2452 ieee80211_bss_info_change_notify(sdata
, BSS_CHANGED_CQM
);
2457 static int ieee80211_set_bitrate_mask(struct wiphy
*wiphy
,
2458 struct net_device
*dev
,
2460 const struct cfg80211_bitrate_mask
*mask
)
2462 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2463 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
2466 if (!ieee80211_sdata_running(sdata
))
2469 if (ieee80211_hw_check(&local
->hw
, HAS_RATE_CONTROL
)) {
2470 ret
= drv_set_bitrate_mask(local
, sdata
, mask
);
2475 for (i
= 0; i
< IEEE80211_NUM_BANDS
; i
++) {
2476 struct ieee80211_supported_band
*sband
= wiphy
->bands
[i
];
2479 sdata
->rc_rateidx_mask
[i
] = mask
->control
[i
].legacy
;
2480 memcpy(sdata
->rc_rateidx_mcs_mask
[i
], mask
->control
[i
].ht_mcs
,
2481 sizeof(mask
->control
[i
].ht_mcs
));
2483 sdata
->rc_has_mcs_mask
[i
] = false;
2487 for (j
= 0; j
< IEEE80211_HT_MCS_MASK_LEN
; j
++)
2488 if (~sdata
->rc_rateidx_mcs_mask
[i
][j
]) {
2489 sdata
->rc_has_mcs_mask
[i
] = true;
2497 static bool ieee80211_coalesce_started_roc(struct ieee80211_local
*local
,
2498 struct ieee80211_roc_work
*new_roc
,
2499 struct ieee80211_roc_work
*cur_roc
)
2501 unsigned long now
= jiffies
;
2502 unsigned long remaining
= cur_roc
->hw_start_time
+
2503 msecs_to_jiffies(cur_roc
->duration
) -
2506 if (WARN_ON(!cur_roc
->started
|| !cur_roc
->hw_begun
))
2509 /* if it doesn't fit entirely, schedule a new one */
2510 if (new_roc
->duration
> jiffies_to_msecs(remaining
))
2513 ieee80211_handle_roc_started(new_roc
);
2515 /* add to dependents so we send the expired event properly */
2516 list_add_tail(&new_roc
->list
, &cur_roc
->dependents
);
2520 static u64
ieee80211_mgmt_tx_cookie(struct ieee80211_local
*local
)
2522 lockdep_assert_held(&local
->mtx
);
2524 local
->roc_cookie_counter
++;
2526 /* wow, you wrapped 64 bits ... more likely a bug */
2527 if (WARN_ON(local
->roc_cookie_counter
== 0))
2528 local
->roc_cookie_counter
++;
2530 return local
->roc_cookie_counter
;
2533 static int ieee80211_start_roc_work(struct ieee80211_local
*local
,
2534 struct ieee80211_sub_if_data
*sdata
,
2535 struct ieee80211_channel
*channel
,
2536 unsigned int duration
, u64
*cookie
,
2537 struct sk_buff
*txskb
,
2538 enum ieee80211_roc_type type
)
2540 struct ieee80211_roc_work
*roc
, *tmp
;
2541 bool queued
= false;
2544 lockdep_assert_held(&local
->mtx
);
2546 if (local
->use_chanctx
&& !local
->ops
->remain_on_channel
)
2549 roc
= kzalloc(sizeof(*roc
), GFP_KERNEL
);
2554 * If the duration is zero, then the driver
2555 * wouldn't actually do anything. Set it to
2558 * TODO: cancel the off-channel operation
2559 * when we get the SKB's TX status and
2560 * the wait time was zero before.
2565 roc
->chan
= channel
;
2566 roc
->duration
= duration
;
2567 roc
->req_duration
= duration
;
2571 INIT_DELAYED_WORK(&roc
->work
, ieee80211_sw_roc_work
);
2572 INIT_LIST_HEAD(&roc
->dependents
);
2575 * cookie is either the roc cookie (for normal roc)
2576 * or the SKB (for mgmt TX)
2579 roc
->cookie
= ieee80211_mgmt_tx_cookie(local
);
2580 *cookie
= roc
->cookie
;
2582 roc
->mgmt_tx_cookie
= *cookie
;
2585 /* if there's one pending or we're scanning, queue this one */
2586 if (!list_empty(&local
->roc_list
) ||
2587 local
->scanning
|| ieee80211_is_radar_required(local
))
2588 goto out_check_combine
;
2590 /* if not HW assist, just queue & schedule work */
2591 if (!local
->ops
->remain_on_channel
) {
2592 ieee80211_queue_delayed_work(&local
->hw
, &roc
->work
, 0);
2596 /* otherwise actually kick it off here (for error handling) */
2598 ret
= drv_remain_on_channel(local
, sdata
, channel
, duration
, type
);
2604 roc
->started
= true;
2608 list_for_each_entry(tmp
, &local
->roc_list
, list
) {
2609 if (tmp
->chan
!= channel
|| tmp
->sdata
!= sdata
)
2613 * Extend this ROC if possible:
2615 * If it hasn't started yet, just increase the duration
2616 * and add the new one to the list of dependents.
2617 * If the type of the new ROC has higher priority, modify the
2618 * type of the previous one to match that of the new one.
2620 if (!tmp
->started
) {
2621 list_add_tail(&roc
->list
, &tmp
->dependents
);
2622 tmp
->duration
= max(tmp
->duration
, roc
->duration
);
2623 tmp
->type
= max(tmp
->type
, roc
->type
);
2628 /* If it has already started, it's more difficult ... */
2629 if (local
->ops
->remain_on_channel
) {
2631 * In the offloaded ROC case, if it hasn't begun, add
2632 * this new one to the dependent list to be handled
2633 * when the master one begins. If it has begun,
2634 * check if it fits entirely within the existing one,
2635 * in which case it will just be dependent as well.
2636 * Otherwise, schedule it by itself.
2638 if (!tmp
->hw_begun
) {
2639 list_add_tail(&roc
->list
, &tmp
->dependents
);
2644 if (ieee80211_coalesce_started_roc(local
, roc
, tmp
))
2646 } else if (del_timer_sync(&tmp
->work
.timer
)) {
2647 unsigned long new_end
;
2650 * In the software ROC case, cancel the timer, if
2651 * that fails then the finish work is already
2652 * queued/pending and thus we queue the new ROC
2653 * normally, if that succeeds then we can extend
2654 * the timer duration and TX the frame (if any.)
2657 list_add_tail(&roc
->list
, &tmp
->dependents
);
2660 new_end
= jiffies
+ msecs_to_jiffies(roc
->duration
);
2662 /* ok, it was started & we canceled timer */
2663 if (time_after(new_end
, tmp
->work
.timer
.expires
))
2664 mod_timer(&tmp
->work
.timer
, new_end
);
2666 add_timer(&tmp
->work
.timer
);
2668 ieee80211_handle_roc_started(roc
);
2675 list_add_tail(&roc
->list
, &local
->roc_list
);
2680 static int ieee80211_remain_on_channel(struct wiphy
*wiphy
,
2681 struct wireless_dev
*wdev
,
2682 struct ieee80211_channel
*chan
,
2683 unsigned int duration
,
2686 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2687 struct ieee80211_local
*local
= sdata
->local
;
2690 mutex_lock(&local
->mtx
);
2691 ret
= ieee80211_start_roc_work(local
, sdata
, chan
,
2692 duration
, cookie
, NULL
,
2693 IEEE80211_ROC_TYPE_NORMAL
);
2694 mutex_unlock(&local
->mtx
);
2699 static int ieee80211_cancel_roc(struct ieee80211_local
*local
,
2700 u64 cookie
, bool mgmt_tx
)
2702 struct ieee80211_roc_work
*roc
, *tmp
, *found
= NULL
;
2705 mutex_lock(&local
->mtx
);
2706 list_for_each_entry_safe(roc
, tmp
, &local
->roc_list
, list
) {
2707 struct ieee80211_roc_work
*dep
, *tmp2
;
2709 list_for_each_entry_safe(dep
, tmp2
, &roc
->dependents
, list
) {
2710 if (!mgmt_tx
&& dep
->cookie
!= cookie
)
2712 else if (mgmt_tx
&& dep
->mgmt_tx_cookie
!= cookie
)
2714 /* found dependent item -- just remove it */
2715 list_del(&dep
->list
);
2716 mutex_unlock(&local
->mtx
);
2718 ieee80211_roc_notify_destroy(dep
, true);
2722 if (!mgmt_tx
&& roc
->cookie
!= cookie
)
2724 else if (mgmt_tx
&& roc
->mgmt_tx_cookie
!= cookie
)
2732 mutex_unlock(&local
->mtx
);
2737 * We found the item to cancel, so do that. Note that it
2738 * may have dependents, which we also cancel (and send
2739 * the expired signal for.) Not doing so would be quite
2740 * tricky here, but we may need to fix it later.
2743 if (local
->ops
->remain_on_channel
) {
2744 if (found
->started
) {
2745 ret
= drv_cancel_remain_on_channel(local
);
2746 if (WARN_ON_ONCE(ret
)) {
2747 mutex_unlock(&local
->mtx
);
2752 list_del(&found
->list
);
2755 ieee80211_start_next_roc(local
);
2756 mutex_unlock(&local
->mtx
);
2758 ieee80211_roc_notify_destroy(found
, true);
2760 /* work may be pending so use it all the time */
2761 found
->abort
= true;
2762 ieee80211_queue_delayed_work(&local
->hw
, &found
->work
, 0);
2764 mutex_unlock(&local
->mtx
);
2766 /* work will clean up etc */
2767 flush_delayed_work(&found
->work
);
2768 WARN_ON(!found
->to_be_freed
);
2775 static int ieee80211_cancel_remain_on_channel(struct wiphy
*wiphy
,
2776 struct wireless_dev
*wdev
,
2779 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2780 struct ieee80211_local
*local
= sdata
->local
;
2782 return ieee80211_cancel_roc(local
, cookie
, false);
2785 static int ieee80211_start_radar_detection(struct wiphy
*wiphy
,
2786 struct net_device
*dev
,
2787 struct cfg80211_chan_def
*chandef
,
2790 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2791 struct ieee80211_local
*local
= sdata
->local
;
2794 mutex_lock(&local
->mtx
);
2795 if (!list_empty(&local
->roc_list
) || local
->scanning
) {
2800 /* whatever, but channel contexts should not complain about that one */
2801 sdata
->smps_mode
= IEEE80211_SMPS_OFF
;
2802 sdata
->needed_rx_chains
= local
->rx_chains
;
2804 err
= ieee80211_vif_use_channel(sdata
, chandef
,
2805 IEEE80211_CHANCTX_SHARED
);
2809 ieee80211_queue_delayed_work(&sdata
->local
->hw
,
2810 &sdata
->dfs_cac_timer_work
,
2811 msecs_to_jiffies(cac_time_ms
));
2814 mutex_unlock(&local
->mtx
);
2818 static struct cfg80211_beacon_data
*
2819 cfg80211_beacon_dup(struct cfg80211_beacon_data
*beacon
)
2821 struct cfg80211_beacon_data
*new_beacon
;
2825 len
= beacon
->head_len
+ beacon
->tail_len
+ beacon
->beacon_ies_len
+
2826 beacon
->proberesp_ies_len
+ beacon
->assocresp_ies_len
+
2827 beacon
->probe_resp_len
;
2829 new_beacon
= kzalloc(sizeof(*new_beacon
) + len
, GFP_KERNEL
);
2833 pos
= (u8
*)(new_beacon
+ 1);
2834 if (beacon
->head_len
) {
2835 new_beacon
->head_len
= beacon
->head_len
;
2836 new_beacon
->head
= pos
;
2837 memcpy(pos
, beacon
->head
, beacon
->head_len
);
2838 pos
+= beacon
->head_len
;
2840 if (beacon
->tail_len
) {
2841 new_beacon
->tail_len
= beacon
->tail_len
;
2842 new_beacon
->tail
= pos
;
2843 memcpy(pos
, beacon
->tail
, beacon
->tail_len
);
2844 pos
+= beacon
->tail_len
;
2846 if (beacon
->beacon_ies_len
) {
2847 new_beacon
->beacon_ies_len
= beacon
->beacon_ies_len
;
2848 new_beacon
->beacon_ies
= pos
;
2849 memcpy(pos
, beacon
->beacon_ies
, beacon
->beacon_ies_len
);
2850 pos
+= beacon
->beacon_ies_len
;
2852 if (beacon
->proberesp_ies_len
) {
2853 new_beacon
->proberesp_ies_len
= beacon
->proberesp_ies_len
;
2854 new_beacon
->proberesp_ies
= pos
;
2855 memcpy(pos
, beacon
->proberesp_ies
, beacon
->proberesp_ies_len
);
2856 pos
+= beacon
->proberesp_ies_len
;
2858 if (beacon
->assocresp_ies_len
) {
2859 new_beacon
->assocresp_ies_len
= beacon
->assocresp_ies_len
;
2860 new_beacon
->assocresp_ies
= pos
;
2861 memcpy(pos
, beacon
->assocresp_ies
, beacon
->assocresp_ies_len
);
2862 pos
+= beacon
->assocresp_ies_len
;
2864 if (beacon
->probe_resp_len
) {
2865 new_beacon
->probe_resp_len
= beacon
->probe_resp_len
;
2866 beacon
->probe_resp
= pos
;
2867 memcpy(pos
, beacon
->probe_resp
, beacon
->probe_resp_len
);
2868 pos
+= beacon
->probe_resp_len
;
2874 void ieee80211_csa_finish(struct ieee80211_vif
*vif
)
2876 struct ieee80211_sub_if_data
*sdata
= vif_to_sdata(vif
);
2878 ieee80211_queue_work(&sdata
->local
->hw
,
2879 &sdata
->csa_finalize_work
);
2881 EXPORT_SYMBOL(ieee80211_csa_finish
);
2883 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
2888 switch (sdata
->vif
.type
) {
2889 case NL80211_IFTYPE_AP
:
2890 err
= ieee80211_assign_beacon(sdata
, sdata
->u
.ap
.next_beacon
,
2892 kfree(sdata
->u
.ap
.next_beacon
);
2893 sdata
->u
.ap
.next_beacon
= NULL
;
2899 case NL80211_IFTYPE_ADHOC
:
2900 err
= ieee80211_ibss_finish_csa(sdata
);
2905 #ifdef CONFIG_MAC80211_MESH
2906 case NL80211_IFTYPE_MESH_POINT
:
2907 err
= ieee80211_mesh_finish_csa(sdata
);
2921 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data
*sdata
)
2923 struct ieee80211_local
*local
= sdata
->local
;
2927 sdata_assert_lock(sdata
);
2928 lockdep_assert_held(&local
->mtx
);
2929 lockdep_assert_held(&local
->chanctx_mtx
);
2932 * using reservation isn't immediate as it may be deferred until later
2933 * with multi-vif. once reservation is complete it will re-schedule the
2934 * work with no reserved_chanctx so verify chandef to check if it
2935 * completed successfully
2938 if (sdata
->reserved_chanctx
) {
2940 * with multi-vif csa driver may call ieee80211_csa_finish()
2941 * many times while waiting for other interfaces to use their
2944 if (sdata
->reserved_ready
)
2947 return ieee80211_vif_use_reserved_context(sdata
);
2950 if (!cfg80211_chandef_identical(&sdata
->vif
.bss_conf
.chandef
,
2951 &sdata
->csa_chandef
))
2954 sdata
->vif
.csa_active
= false;
2956 err
= ieee80211_set_after_csa_beacon(sdata
, &changed
);
2960 ieee80211_bss_info_change_notify(sdata
, changed
);
2962 if (sdata
->csa_block_tx
) {
2963 ieee80211_wake_vif_queues(local
, sdata
,
2964 IEEE80211_QUEUE_STOP_REASON_CSA
);
2965 sdata
->csa_block_tx
= false;
2968 err
= drv_post_channel_switch(sdata
);
2972 cfg80211_ch_switch_notify(sdata
->dev
, &sdata
->csa_chandef
);
2977 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data
*sdata
)
2979 if (__ieee80211_csa_finalize(sdata
)) {
2980 sdata_info(sdata
, "failed to finalize CSA, disconnecting\n");
2981 cfg80211_stop_iface(sdata
->local
->hw
.wiphy
, &sdata
->wdev
,
2986 void ieee80211_csa_finalize_work(struct work_struct
*work
)
2988 struct ieee80211_sub_if_data
*sdata
=
2989 container_of(work
, struct ieee80211_sub_if_data
,
2991 struct ieee80211_local
*local
= sdata
->local
;
2994 mutex_lock(&local
->mtx
);
2995 mutex_lock(&local
->chanctx_mtx
);
2997 /* AP might have been stopped while waiting for the lock. */
2998 if (!sdata
->vif
.csa_active
)
3001 if (!ieee80211_sdata_running(sdata
))
3004 ieee80211_csa_finalize(sdata
);
3007 mutex_unlock(&local
->chanctx_mtx
);
3008 mutex_unlock(&local
->mtx
);
3009 sdata_unlock(sdata
);
3012 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
3013 struct cfg80211_csa_settings
*params
,
3016 struct ieee80211_csa_settings csa
= {};
3019 switch (sdata
->vif
.type
) {
3020 case NL80211_IFTYPE_AP
:
3021 sdata
->u
.ap
.next_beacon
=
3022 cfg80211_beacon_dup(¶ms
->beacon_after
);
3023 if (!sdata
->u
.ap
.next_beacon
)
3027 * With a count of 0, we don't have to wait for any
3028 * TBTT before switching, so complete the CSA
3029 * immediately. In theory, with a count == 1 we
3030 * should delay the switch until just before the next
3031 * TBTT, but that would complicate things so we switch
3032 * immediately too. If we would delay the switch
3033 * until the next TBTT, we would have to set the probe
3036 * TODO: A channel switch with count <= 1 without
3037 * sending a CSA action frame is kind of useless,
3038 * because the clients won't know we're changing
3039 * channels. The action frame must be implemented
3040 * either here or in the userspace.
3042 if (params
->count
<= 1)
3045 if ((params
->n_counter_offsets_beacon
>
3046 IEEE80211_MAX_CSA_COUNTERS_NUM
) ||
3047 (params
->n_counter_offsets_presp
>
3048 IEEE80211_MAX_CSA_COUNTERS_NUM
))
3051 csa
.counter_offsets_beacon
= params
->counter_offsets_beacon
;
3052 csa
.counter_offsets_presp
= params
->counter_offsets_presp
;
3053 csa
.n_counter_offsets_beacon
= params
->n_counter_offsets_beacon
;
3054 csa
.n_counter_offsets_presp
= params
->n_counter_offsets_presp
;
3055 csa
.count
= params
->count
;
3057 err
= ieee80211_assign_beacon(sdata
, ¶ms
->beacon_csa
, &csa
);
3059 kfree(sdata
->u
.ap
.next_beacon
);
3065 case NL80211_IFTYPE_ADHOC
:
3066 if (!sdata
->vif
.bss_conf
.ibss_joined
)
3069 if (params
->chandef
.width
!= sdata
->u
.ibss
.chandef
.width
)
3072 switch (params
->chandef
.width
) {
3073 case NL80211_CHAN_WIDTH_40
:
3074 if (cfg80211_get_chandef_type(¶ms
->chandef
) !=
3075 cfg80211_get_chandef_type(&sdata
->u
.ibss
.chandef
))
3077 case NL80211_CHAN_WIDTH_5
:
3078 case NL80211_CHAN_WIDTH_10
:
3079 case NL80211_CHAN_WIDTH_20_NOHT
:
3080 case NL80211_CHAN_WIDTH_20
:
3086 /* changes into another band are not supported */
3087 if (sdata
->u
.ibss
.chandef
.chan
->band
!=
3088 params
->chandef
.chan
->band
)
3091 /* see comments in the NL80211_IFTYPE_AP block */
3092 if (params
->count
> 1) {
3093 err
= ieee80211_ibss_csa_beacon(sdata
, params
);
3099 ieee80211_send_action_csa(sdata
, params
);
3102 #ifdef CONFIG_MAC80211_MESH
3103 case NL80211_IFTYPE_MESH_POINT
: {
3104 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
3106 if (params
->chandef
.width
!= sdata
->vif
.bss_conf
.chandef
.width
)
3109 /* changes into another band are not supported */
3110 if (sdata
->vif
.bss_conf
.chandef
.chan
->band
!=
3111 params
->chandef
.chan
->band
)
3114 if (ifmsh
->csa_role
== IEEE80211_MESH_CSA_ROLE_NONE
) {
3115 ifmsh
->csa_role
= IEEE80211_MESH_CSA_ROLE_INIT
;
3116 if (!ifmsh
->pre_value
)
3117 ifmsh
->pre_value
= 1;
3122 /* see comments in the NL80211_IFTYPE_AP block */
3123 if (params
->count
> 1) {
3124 err
= ieee80211_mesh_csa_beacon(sdata
, params
);
3126 ifmsh
->csa_role
= IEEE80211_MESH_CSA_ROLE_NONE
;
3132 if (ifmsh
->csa_role
== IEEE80211_MESH_CSA_ROLE_INIT
)
3133 ieee80211_send_action_csa(sdata
, params
);
3146 __ieee80211_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
3147 struct cfg80211_csa_settings
*params
)
3149 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3150 struct ieee80211_local
*local
= sdata
->local
;
3151 struct ieee80211_channel_switch ch_switch
;
3152 struct ieee80211_chanctx_conf
*conf
;
3153 struct ieee80211_chanctx
*chanctx
;
3157 sdata_assert_lock(sdata
);
3158 lockdep_assert_held(&local
->mtx
);
3160 if (!list_empty(&local
->roc_list
) || local
->scanning
)
3163 if (sdata
->wdev
.cac_started
)
3166 if (cfg80211_chandef_identical(¶ms
->chandef
,
3167 &sdata
->vif
.bss_conf
.chandef
))
3170 /* don't allow another channel switch if one is already active. */
3171 if (sdata
->vif
.csa_active
)
3174 mutex_lock(&local
->chanctx_mtx
);
3175 conf
= rcu_dereference_protected(sdata
->vif
.chanctx_conf
,
3176 lockdep_is_held(&local
->chanctx_mtx
));
3182 chanctx
= container_of(conf
, struct ieee80211_chanctx
, conf
);
3188 ch_switch
.timestamp
= 0;
3189 ch_switch
.device_timestamp
= 0;
3190 ch_switch
.block_tx
= params
->block_tx
;
3191 ch_switch
.chandef
= params
->chandef
;
3192 ch_switch
.count
= params
->count
;
3194 err
= drv_pre_channel_switch(sdata
, &ch_switch
);
3198 err
= ieee80211_vif_reserve_chanctx(sdata
, ¶ms
->chandef
,
3200 params
->radar_required
);
3204 /* if reservation is invalid then this will fail */
3205 err
= ieee80211_check_combinations(sdata
, NULL
, chanctx
->mode
, 0);
3207 ieee80211_vif_unreserve_chanctx(sdata
);
3211 err
= ieee80211_set_csa_beacon(sdata
, params
, &changed
);
3213 ieee80211_vif_unreserve_chanctx(sdata
);
3217 sdata
->csa_chandef
= params
->chandef
;
3218 sdata
->csa_block_tx
= params
->block_tx
;
3219 sdata
->vif
.csa_active
= true;
3221 if (sdata
->csa_block_tx
)
3222 ieee80211_stop_vif_queues(local
, sdata
,
3223 IEEE80211_QUEUE_STOP_REASON_CSA
);
3225 cfg80211_ch_switch_started_notify(sdata
->dev
, &sdata
->csa_chandef
,
3229 ieee80211_bss_info_change_notify(sdata
, changed
);
3230 drv_channel_switch_beacon(sdata
, ¶ms
->chandef
);
3232 /* if the beacon didn't change, we can finalize immediately */
3233 ieee80211_csa_finalize(sdata
);
3237 mutex_unlock(&local
->chanctx_mtx
);
3241 int ieee80211_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
3242 struct cfg80211_csa_settings
*params
)
3244 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3245 struct ieee80211_local
*local
= sdata
->local
;
3248 mutex_lock(&local
->mtx
);
3249 err
= __ieee80211_channel_switch(wiphy
, dev
, params
);
3250 mutex_unlock(&local
->mtx
);
3255 static struct sk_buff
*ieee80211_make_ack_skb(struct ieee80211_local
*local
,
3256 struct sk_buff
*skb
, u64
*cookie
,
3259 unsigned long spin_flags
;
3260 struct sk_buff
*ack_skb
;
3263 ack_skb
= skb_copy(skb
, gfp
);
3265 return ERR_PTR(-ENOMEM
);
3267 spin_lock_irqsave(&local
->ack_status_lock
, spin_flags
);
3268 id
= idr_alloc(&local
->ack_status_frames
, ack_skb
,
3269 1, 0x10000, GFP_ATOMIC
);
3270 spin_unlock_irqrestore(&local
->ack_status_lock
, spin_flags
);
3274 return ERR_PTR(-ENOMEM
);
3277 IEEE80211_SKB_CB(skb
)->ack_frame_id
= id
;
3279 *cookie
= ieee80211_mgmt_tx_cookie(local
);
3280 IEEE80211_SKB_CB(ack_skb
)->ack
.cookie
= *cookie
;
3285 static int ieee80211_mgmt_tx(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
3286 struct cfg80211_mgmt_tx_params
*params
,
3289 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
3290 struct ieee80211_local
*local
= sdata
->local
;
3291 struct sk_buff
*skb
, *ack_skb
;
3292 struct sta_info
*sta
;
3293 const struct ieee80211_mgmt
*mgmt
= (void *)params
->buf
;
3294 bool need_offchan
= false;
3299 if (params
->dont_wait_for_ack
)
3300 flags
= IEEE80211_TX_CTL_NO_ACK
;
3302 flags
= IEEE80211_TX_INTFL_NL80211_FRAME_TX
|
3303 IEEE80211_TX_CTL_REQ_TX_STATUS
;
3306 flags
|= IEEE80211_TX_CTL_NO_CCK_RATE
;
3308 switch (sdata
->vif
.type
) {
3309 case NL80211_IFTYPE_ADHOC
:
3310 if (!sdata
->vif
.bss_conf
.ibss_joined
)
3311 need_offchan
= true;
3313 #ifdef CONFIG_MAC80211_MESH
3314 case NL80211_IFTYPE_MESH_POINT
:
3315 if (ieee80211_vif_is_mesh(&sdata
->vif
) &&
3316 !sdata
->u
.mesh
.mesh_id_len
)
3317 need_offchan
= true;
3320 case NL80211_IFTYPE_AP
:
3321 case NL80211_IFTYPE_AP_VLAN
:
3322 case NL80211_IFTYPE_P2P_GO
:
3323 if (sdata
->vif
.type
!= NL80211_IFTYPE_ADHOC
&&
3324 !ieee80211_vif_is_mesh(&sdata
->vif
) &&
3325 !rcu_access_pointer(sdata
->bss
->beacon
))
3326 need_offchan
= true;
3327 if (!ieee80211_is_action(mgmt
->frame_control
) ||
3328 mgmt
->u
.action
.category
== WLAN_CATEGORY_PUBLIC
||
3329 mgmt
->u
.action
.category
== WLAN_CATEGORY_SELF_PROTECTED
||
3330 mgmt
->u
.action
.category
== WLAN_CATEGORY_SPECTRUM_MGMT
)
3333 sta
= sta_info_get(sdata
, mgmt
->da
);
3338 case NL80211_IFTYPE_STATION
:
3339 case NL80211_IFTYPE_P2P_CLIENT
:
3341 if (!sdata
->u
.mgd
.associated
||
3342 (params
->offchan
&& params
->wait
&&
3343 local
->ops
->remain_on_channel
&&
3344 memcmp(sdata
->u
.mgd
.associated
->bssid
,
3345 mgmt
->bssid
, ETH_ALEN
)))
3346 need_offchan
= true;
3347 sdata_unlock(sdata
);
3349 case NL80211_IFTYPE_P2P_DEVICE
:
3350 need_offchan
= true;
3356 /* configurations requiring offchan cannot work if no channel has been
3359 if (need_offchan
&& !params
->chan
)
3362 mutex_lock(&local
->mtx
);
3364 /* Check if the operating channel is the requested channel */
3365 if (!need_offchan
) {
3366 struct ieee80211_chanctx_conf
*chanctx_conf
;
3369 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
3372 need_offchan
= params
->chan
&&
3374 chanctx_conf
->def
.chan
);
3375 } else if (!params
->chan
) {
3380 need_offchan
= true;
3385 if (need_offchan
&& !params
->offchan
) {
3390 skb
= dev_alloc_skb(local
->hw
.extra_tx_headroom
+ params
->len
);
3395 skb_reserve(skb
, local
->hw
.extra_tx_headroom
);
3397 data
= skb_put(skb
, params
->len
);
3398 memcpy(data
, params
->buf
, params
->len
);
3400 /* Update CSA counters */
3401 if (sdata
->vif
.csa_active
&&
3402 (sdata
->vif
.type
== NL80211_IFTYPE_AP
||
3403 sdata
->vif
.type
== NL80211_IFTYPE_MESH_POINT
||
3404 sdata
->vif
.type
== NL80211_IFTYPE_ADHOC
) &&
3405 params
->n_csa_offsets
) {
3407 struct beacon_data
*beacon
= NULL
;
3411 if (sdata
->vif
.type
== NL80211_IFTYPE_AP
)
3412 beacon
= rcu_dereference(sdata
->u
.ap
.beacon
);
3413 else if (sdata
->vif
.type
== NL80211_IFTYPE_ADHOC
)
3414 beacon
= rcu_dereference(sdata
->u
.ibss
.presp
);
3415 else if (ieee80211_vif_is_mesh(&sdata
->vif
))
3416 beacon
= rcu_dereference(sdata
->u
.mesh
.beacon
);
3419 for (i
= 0; i
< params
->n_csa_offsets
; i
++)
3420 data
[params
->csa_offsets
[i
]] =
3421 beacon
->csa_current_counter
;
3426 IEEE80211_SKB_CB(skb
)->flags
= flags
;
3428 skb
->dev
= sdata
->dev
;
3430 if (!params
->dont_wait_for_ack
) {
3431 /* make a copy to preserve the frame contents
3432 * in case of encryption.
3434 ack_skb
= ieee80211_make_ack_skb(local
, skb
, cookie
,
3436 if (IS_ERR(ack_skb
)) {
3437 ret
= PTR_ERR(ack_skb
);
3442 /* for cookie below */
3446 if (!need_offchan
) {
3447 ieee80211_tx_skb(sdata
, skb
);
3452 IEEE80211_SKB_CB(skb
)->flags
|= IEEE80211_TX_CTL_TX_OFFCHAN
|
3453 IEEE80211_TX_INTFL_OFFCHAN_TX_OK
;
3454 if (ieee80211_hw_check(&local
->hw
, QUEUE_CONTROL
))
3455 IEEE80211_SKB_CB(skb
)->hw_queue
=
3456 local
->hw
.offchannel_tx_hw_queue
;
3458 /* This will handle all kinds of coalescing and immediate TX */
3459 ret
= ieee80211_start_roc_work(local
, sdata
, params
->chan
,
3460 params
->wait
, cookie
, skb
,
3461 IEEE80211_ROC_TYPE_MGMT_TX
);
3465 mutex_unlock(&local
->mtx
);
3469 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy
*wiphy
,
3470 struct wireless_dev
*wdev
,
3473 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3475 return ieee80211_cancel_roc(local
, cookie
, true);
3478 static void ieee80211_mgmt_frame_register(struct wiphy
*wiphy
,
3479 struct wireless_dev
*wdev
,
3480 u16 frame_type
, bool reg
)
3482 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3484 switch (frame_type
) {
3485 case IEEE80211_FTYPE_MGMT
| IEEE80211_STYPE_PROBE_REQ
:
3487 local
->probe_req_reg
++;
3489 local
->probe_req_reg
--;
3491 if (!local
->open_count
)
3494 ieee80211_queue_work(&local
->hw
, &local
->reconfig_filter
);
3501 static int ieee80211_set_antenna(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
)
3503 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3508 return drv_set_antenna(local
, tx_ant
, rx_ant
);
3511 static int ieee80211_get_antenna(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
)
3513 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3515 return drv_get_antenna(local
, tx_ant
, rx_ant
);
3518 static int ieee80211_set_rekey_data(struct wiphy
*wiphy
,
3519 struct net_device
*dev
,
3520 struct cfg80211_gtk_rekey_data
*data
)
3522 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3523 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3525 if (!local
->ops
->set_rekey_data
)
3528 drv_set_rekey_data(local
, sdata
, data
);
3533 static int ieee80211_probe_client(struct wiphy
*wiphy
, struct net_device
*dev
,
3534 const u8
*peer
, u64
*cookie
)
3536 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3537 struct ieee80211_local
*local
= sdata
->local
;
3538 struct ieee80211_qos_hdr
*nullfunc
;
3539 struct sk_buff
*skb
, *ack_skb
;
3540 int size
= sizeof(*nullfunc
);
3543 struct ieee80211_tx_info
*info
;
3544 struct sta_info
*sta
;
3545 struct ieee80211_chanctx_conf
*chanctx_conf
;
3546 enum ieee80211_band band
;
3549 /* the lock is needed to assign the cookie later */
3550 mutex_lock(&local
->mtx
);
3553 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
3554 if (WARN_ON(!chanctx_conf
)) {
3558 band
= chanctx_conf
->def
.chan
->band
;
3559 sta
= sta_info_get_bss(sdata
, peer
);
3568 fc
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
3569 IEEE80211_STYPE_QOS_NULLFUNC
|
3570 IEEE80211_FCTL_FROMDS
);
3573 fc
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
3574 IEEE80211_STYPE_NULLFUNC
|
3575 IEEE80211_FCTL_FROMDS
);
3578 skb
= dev_alloc_skb(local
->hw
.extra_tx_headroom
+ size
);
3586 skb_reserve(skb
, local
->hw
.extra_tx_headroom
);
3588 nullfunc
= (void *) skb_put(skb
, size
);
3589 nullfunc
->frame_control
= fc
;
3590 nullfunc
->duration_id
= 0;
3591 memcpy(nullfunc
->addr1
, sta
->sta
.addr
, ETH_ALEN
);
3592 memcpy(nullfunc
->addr2
, sdata
->vif
.addr
, ETH_ALEN
);
3593 memcpy(nullfunc
->addr3
, sdata
->vif
.addr
, ETH_ALEN
);
3594 nullfunc
->seq_ctrl
= 0;
3596 info
= IEEE80211_SKB_CB(skb
);
3598 info
->flags
|= IEEE80211_TX_CTL_REQ_TX_STATUS
|
3599 IEEE80211_TX_INTFL_NL80211_FRAME_TX
;
3602 skb_set_queue_mapping(skb
, IEEE80211_AC_VO
);
3605 nullfunc
->qos_ctrl
= cpu_to_le16(7);
3607 ack_skb
= ieee80211_make_ack_skb(local
, skb
, cookie
, GFP_ATOMIC
);
3608 if (IS_ERR(ack_skb
)) {
3610 ret
= PTR_ERR(ack_skb
);
3615 ieee80211_xmit(sdata
, sta
, skb
);
3621 mutex_unlock(&local
->mtx
);
3626 static int ieee80211_cfg_get_channel(struct wiphy
*wiphy
,
3627 struct wireless_dev
*wdev
,
3628 struct cfg80211_chan_def
*chandef
)
3630 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
3631 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3632 struct ieee80211_chanctx_conf
*chanctx_conf
;
3636 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
3638 *chandef
= sdata
->vif
.bss_conf
.chandef
;
3640 } else if (local
->open_count
> 0 &&
3641 local
->open_count
== local
->monitors
&&
3642 sdata
->vif
.type
== NL80211_IFTYPE_MONITOR
) {
3643 if (local
->use_chanctx
)
3644 *chandef
= local
->monitor_chandef
;
3646 *chandef
= local
->_oper_chandef
;
3655 static void ieee80211_set_wakeup(struct wiphy
*wiphy
, bool enabled
)
3657 drv_set_wakeup(wiphy_priv(wiphy
), enabled
);
3661 static int ieee80211_set_qos_map(struct wiphy
*wiphy
,
3662 struct net_device
*dev
,
3663 struct cfg80211_qos_map
*qos_map
)
3665 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3666 struct mac80211_qos_map
*new_qos_map
, *old_qos_map
;
3669 new_qos_map
= kzalloc(sizeof(*new_qos_map
), GFP_KERNEL
);
3672 memcpy(&new_qos_map
->qos_map
, qos_map
, sizeof(*qos_map
));
3674 /* A NULL qos_map was passed to disable QoS mapping */
3678 old_qos_map
= sdata_dereference(sdata
->qos_map
, sdata
);
3679 rcu_assign_pointer(sdata
->qos_map
, new_qos_map
);
3681 kfree_rcu(old_qos_map
, rcu_head
);
3686 static int ieee80211_set_ap_chanwidth(struct wiphy
*wiphy
,
3687 struct net_device
*dev
,
3688 struct cfg80211_chan_def
*chandef
)
3690 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3694 ret
= ieee80211_vif_change_bandwidth(sdata
, chandef
, &changed
);
3696 ieee80211_bss_info_change_notify(sdata
, changed
);
3701 static int ieee80211_add_tx_ts(struct wiphy
*wiphy
, struct net_device
*dev
,
3702 u8 tsid
, const u8
*peer
, u8 up
,
3705 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3706 struct ieee80211_if_managed
*ifmgd
= &sdata
->u
.mgd
;
3707 int ac
= ieee802_1d_to_ac
[up
];
3709 if (sdata
->vif
.type
!= NL80211_IFTYPE_STATION
)
3712 if (!(sdata
->wmm_acm
& BIT(up
)))
3715 if (ifmgd
->tx_tspec
[ac
].admitted_time
)
3718 if (admitted_time
) {
3719 ifmgd
->tx_tspec
[ac
].admitted_time
= 32 * admitted_time
;
3720 ifmgd
->tx_tspec
[ac
].tsid
= tsid
;
3721 ifmgd
->tx_tspec
[ac
].up
= up
;
3727 static int ieee80211_del_tx_ts(struct wiphy
*wiphy
, struct net_device
*dev
,
3728 u8 tsid
, const u8
*peer
)
3730 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3731 struct ieee80211_if_managed
*ifmgd
= &sdata
->u
.mgd
;
3732 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3735 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++) {
3736 struct ieee80211_sta_tx_tspec
*tx_tspec
= &ifmgd
->tx_tspec
[ac
];
3738 /* skip unused entries */
3739 if (!tx_tspec
->admitted_time
)
3742 if (tx_tspec
->tsid
!= tsid
)
3745 /* due to this new packets will be reassigned to non-ACM ACs */
3748 /* Make sure that all packets have been sent to avoid to
3749 * restore the QoS params on packets that are still on the
3753 ieee80211_flush_queues(local
, sdata
, false);
3755 /* restore the normal QoS parameters
3756 * (unconditionally to avoid races)
3758 tx_tspec
->action
= TX_TSPEC_ACTION_STOP_DOWNGRADE
;
3759 tx_tspec
->downgraded
= false;
3760 ieee80211_sta_handle_tspec_ac_params(sdata
);
3762 /* finally clear all the data */
3763 memset(tx_tspec
, 0, sizeof(*tx_tspec
));
3771 const struct cfg80211_ops mac80211_config_ops
= {
3772 .add_virtual_intf
= ieee80211_add_iface
,
3773 .del_virtual_intf
= ieee80211_del_iface
,
3774 .change_virtual_intf
= ieee80211_change_iface
,
3775 .start_p2p_device
= ieee80211_start_p2p_device
,
3776 .stop_p2p_device
= ieee80211_stop_p2p_device
,
3777 .add_key
= ieee80211_add_key
,
3778 .del_key
= ieee80211_del_key
,
3779 .get_key
= ieee80211_get_key
,
3780 .set_default_key
= ieee80211_config_default_key
,
3781 .set_default_mgmt_key
= ieee80211_config_default_mgmt_key
,
3782 .start_ap
= ieee80211_start_ap
,
3783 .change_beacon
= ieee80211_change_beacon
,
3784 .stop_ap
= ieee80211_stop_ap
,
3785 .add_station
= ieee80211_add_station
,
3786 .del_station
= ieee80211_del_station
,
3787 .change_station
= ieee80211_change_station
,
3788 .get_station
= ieee80211_get_station
,
3789 .dump_station
= ieee80211_dump_station
,
3790 .dump_survey
= ieee80211_dump_survey
,
3791 #ifdef CONFIG_MAC80211_MESH
3792 .add_mpath
= ieee80211_add_mpath
,
3793 .del_mpath
= ieee80211_del_mpath
,
3794 .change_mpath
= ieee80211_change_mpath
,
3795 .get_mpath
= ieee80211_get_mpath
,
3796 .dump_mpath
= ieee80211_dump_mpath
,
3797 .get_mpp
= ieee80211_get_mpp
,
3798 .dump_mpp
= ieee80211_dump_mpp
,
3799 .update_mesh_config
= ieee80211_update_mesh_config
,
3800 .get_mesh_config
= ieee80211_get_mesh_config
,
3801 .join_mesh
= ieee80211_join_mesh
,
3802 .leave_mesh
= ieee80211_leave_mesh
,
3804 .join_ocb
= ieee80211_join_ocb
,
3805 .leave_ocb
= ieee80211_leave_ocb
,
3806 .change_bss
= ieee80211_change_bss
,
3807 .set_txq_params
= ieee80211_set_txq_params
,
3808 .set_monitor_channel
= ieee80211_set_monitor_channel
,
3809 .suspend
= ieee80211_suspend
,
3810 .resume
= ieee80211_resume
,
3811 .scan
= ieee80211_scan
,
3812 .sched_scan_start
= ieee80211_sched_scan_start
,
3813 .sched_scan_stop
= ieee80211_sched_scan_stop
,
3814 .auth
= ieee80211_auth
,
3815 .assoc
= ieee80211_assoc
,
3816 .deauth
= ieee80211_deauth
,
3817 .disassoc
= ieee80211_disassoc
,
3818 .join_ibss
= ieee80211_join_ibss
,
3819 .leave_ibss
= ieee80211_leave_ibss
,
3820 .set_mcast_rate
= ieee80211_set_mcast_rate
,
3821 .set_wiphy_params
= ieee80211_set_wiphy_params
,
3822 .set_tx_power
= ieee80211_set_tx_power
,
3823 .get_tx_power
= ieee80211_get_tx_power
,
3824 .set_wds_peer
= ieee80211_set_wds_peer
,
3825 .rfkill_poll
= ieee80211_rfkill_poll
,
3826 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd
)
3827 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump
)
3828 .set_power_mgmt
= ieee80211_set_power_mgmt
,
3829 .set_bitrate_mask
= ieee80211_set_bitrate_mask
,
3830 .remain_on_channel
= ieee80211_remain_on_channel
,
3831 .cancel_remain_on_channel
= ieee80211_cancel_remain_on_channel
,
3832 .mgmt_tx
= ieee80211_mgmt_tx
,
3833 .mgmt_tx_cancel_wait
= ieee80211_mgmt_tx_cancel_wait
,
3834 .set_cqm_rssi_config
= ieee80211_set_cqm_rssi_config
,
3835 .mgmt_frame_register
= ieee80211_mgmt_frame_register
,
3836 .set_antenna
= ieee80211_set_antenna
,
3837 .get_antenna
= ieee80211_get_antenna
,
3838 .set_rekey_data
= ieee80211_set_rekey_data
,
3839 .tdls_oper
= ieee80211_tdls_oper
,
3840 .tdls_mgmt
= ieee80211_tdls_mgmt
,
3841 .tdls_channel_switch
= ieee80211_tdls_channel_switch
,
3842 .tdls_cancel_channel_switch
= ieee80211_tdls_cancel_channel_switch
,
3843 .probe_client
= ieee80211_probe_client
,
3844 .set_noack_map
= ieee80211_set_noack_map
,
3846 .set_wakeup
= ieee80211_set_wakeup
,
3848 .get_channel
= ieee80211_cfg_get_channel
,
3849 .start_radar_detection
= ieee80211_start_radar_detection
,
3850 .channel_switch
= ieee80211_channel_switch
,
3851 .set_qos_map
= ieee80211_set_qos_map
,
3852 .set_ap_chanwidth
= ieee80211_set_ap_chanwidth
,
3853 .add_tx_ts
= ieee80211_add_tx_ts
,
3854 .del_tx_ts
= ieee80211_del_tx_ts
,