2 * mac80211 configuration hooks for cfg80211
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 * Copyright 2013-2015 Intel Mobile Communications GmbH
7 * This file is GPLv2 as found in COPYING.
10 #include <linux/ieee80211.h>
11 #include <linux/nl80211.h>
12 #include <linux/rtnetlink.h>
13 #include <linux/slab.h>
14 #include <net/net_namespace.h>
15 #include <linux/rcupdate.h>
16 #include <linux/if_ether.h>
17 #include <net/cfg80211.h>
18 #include "ieee80211_i.h"
19 #include "driver-ops.h"
25 static struct wireless_dev
*ieee80211_add_iface(struct wiphy
*wiphy
,
27 unsigned char name_assign_type
,
28 enum nl80211_iftype type
,
30 struct vif_params
*params
)
32 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
33 struct wireless_dev
*wdev
;
34 struct ieee80211_sub_if_data
*sdata
;
37 err
= ieee80211_if_add(local
, name
, name_assign_type
, &wdev
, type
, params
);
41 if (type
== NL80211_IFTYPE_MONITOR
&& flags
) {
42 sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
43 sdata
->u
.mntr_flags
= *flags
;
49 static int ieee80211_del_iface(struct wiphy
*wiphy
, struct wireless_dev
*wdev
)
51 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev
));
56 static int ieee80211_change_iface(struct wiphy
*wiphy
,
57 struct net_device
*dev
,
58 enum nl80211_iftype type
, u32
*flags
,
59 struct vif_params
*params
)
61 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
64 ret
= ieee80211_if_change_type(sdata
, type
);
68 if (type
== NL80211_IFTYPE_AP_VLAN
&&
69 params
&& params
->use_4addr
== 0)
70 RCU_INIT_POINTER(sdata
->u
.vlan
.sta
, NULL
);
71 else if (type
== NL80211_IFTYPE_STATION
&&
72 params
&& params
->use_4addr
>= 0)
73 sdata
->u
.mgd
.use_4addr
= params
->use_4addr
;
75 if (sdata
->vif
.type
== NL80211_IFTYPE_MONITOR
&& flags
) {
76 struct ieee80211_local
*local
= sdata
->local
;
78 if (ieee80211_sdata_running(sdata
)) {
79 u32 mask
= MONITOR_FLAG_COOK_FRAMES
|
83 * Prohibit MONITOR_FLAG_COOK_FRAMES and
84 * MONITOR_FLAG_ACTIVE to be changed while the
86 * Else we would need to add a lot of cruft
87 * to update everything:
88 * cooked_mntrs, monitor and all fif_* counters
89 * reconfigure hardware
91 if ((*flags
& mask
) != (sdata
->u
.mntr_flags
& mask
))
94 ieee80211_adjust_monitor_flags(sdata
, -1);
95 sdata
->u
.mntr_flags
= *flags
;
96 ieee80211_adjust_monitor_flags(sdata
, 1);
98 ieee80211_configure_filter(local
);
101 * Because the interface is down, ieee80211_do_stop
102 * and ieee80211_do_open take care of "everything"
103 * mentioned in the comment above.
105 sdata
->u
.mntr_flags
= *flags
;
112 static int ieee80211_start_p2p_device(struct wiphy
*wiphy
,
113 struct wireless_dev
*wdev
)
115 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
118 mutex_lock(&sdata
->local
->chanctx_mtx
);
119 ret
= ieee80211_check_combinations(sdata
, NULL
, 0, 0);
120 mutex_unlock(&sdata
->local
->chanctx_mtx
);
124 return ieee80211_do_open(wdev
, true);
127 static void ieee80211_stop_p2p_device(struct wiphy
*wiphy
,
128 struct wireless_dev
*wdev
)
130 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev
));
133 static int ieee80211_set_noack_map(struct wiphy
*wiphy
,
134 struct net_device
*dev
,
137 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
139 sdata
->noack_map
= noack_map
;
141 ieee80211_check_fast_xmit_iface(sdata
);
146 static int ieee80211_add_key(struct wiphy
*wiphy
, struct net_device
*dev
,
147 u8 key_idx
, bool pairwise
, const u8
*mac_addr
,
148 struct key_params
*params
)
150 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
151 struct ieee80211_local
*local
= sdata
->local
;
152 struct sta_info
*sta
= NULL
;
153 const struct ieee80211_cipher_scheme
*cs
= NULL
;
154 struct ieee80211_key
*key
;
157 if (!ieee80211_sdata_running(sdata
))
160 /* reject WEP and TKIP keys if WEP failed to initialize */
161 switch (params
->cipher
) {
162 case WLAN_CIPHER_SUITE_WEP40
:
163 case WLAN_CIPHER_SUITE_TKIP
:
164 case WLAN_CIPHER_SUITE_WEP104
:
165 if (IS_ERR(local
->wep_tx_tfm
))
168 case WLAN_CIPHER_SUITE_CCMP
:
169 case WLAN_CIPHER_SUITE_CCMP_256
:
170 case WLAN_CIPHER_SUITE_AES_CMAC
:
171 case WLAN_CIPHER_SUITE_BIP_CMAC_256
:
172 case WLAN_CIPHER_SUITE_BIP_GMAC_128
:
173 case WLAN_CIPHER_SUITE_BIP_GMAC_256
:
174 case WLAN_CIPHER_SUITE_GCMP
:
175 case WLAN_CIPHER_SUITE_GCMP_256
:
178 cs
= ieee80211_cs_get(local
, params
->cipher
, sdata
->vif
.type
);
182 key
= ieee80211_key_alloc(params
->cipher
, key_idx
, params
->key_len
,
183 params
->key
, params
->seq_len
, params
->seq
,
189 key
->conf
.flags
|= IEEE80211_KEY_FLAG_PAIRWISE
;
191 mutex_lock(&local
->sta_mtx
);
194 if (ieee80211_vif_is_mesh(&sdata
->vif
))
195 sta
= sta_info_get(sdata
, mac_addr
);
197 sta
= sta_info_get_bss(sdata
, mac_addr
);
199 * The ASSOC test makes sure the driver is ready to
200 * receive the key. When wpa_supplicant has roamed
201 * using FT, it attempts to set the key before
202 * association has completed, this rejects that attempt
203 * so it will set the key again after association.
205 * TODO: accept the key if we have a station entry and
206 * add it to the device after the station.
208 if (!sta
|| !test_sta_flag(sta
, WLAN_STA_ASSOC
)) {
209 ieee80211_key_free_unused(key
);
215 switch (sdata
->vif
.type
) {
216 case NL80211_IFTYPE_STATION
:
217 if (sdata
->u
.mgd
.mfp
!= IEEE80211_MFP_DISABLED
)
218 key
->conf
.flags
|= IEEE80211_KEY_FLAG_RX_MGMT
;
220 case NL80211_IFTYPE_AP
:
221 case NL80211_IFTYPE_AP_VLAN
:
222 /* Keys without a station are used for TX only */
223 if (key
->sta
&& test_sta_flag(key
->sta
, WLAN_STA_MFP
))
224 key
->conf
.flags
|= IEEE80211_KEY_FLAG_RX_MGMT
;
226 case NL80211_IFTYPE_ADHOC
:
229 case NL80211_IFTYPE_MESH_POINT
:
230 #ifdef CONFIG_MAC80211_MESH
231 if (sdata
->u
.mesh
.security
!= IEEE80211_MESH_SEC_NONE
)
232 key
->conf
.flags
|= IEEE80211_KEY_FLAG_RX_MGMT
;
235 case NL80211_IFTYPE_WDS
:
236 case NL80211_IFTYPE_MONITOR
:
237 case NL80211_IFTYPE_P2P_DEVICE
:
238 case NL80211_IFTYPE_UNSPECIFIED
:
239 case NUM_NL80211_IFTYPES
:
240 case NL80211_IFTYPE_P2P_CLIENT
:
241 case NL80211_IFTYPE_P2P_GO
:
242 case NL80211_IFTYPE_OCB
:
243 /* shouldn't happen */
249 sta
->cipher_scheme
= cs
;
251 err
= ieee80211_key_link(key
, sdata
, sta
);
254 mutex_unlock(&local
->sta_mtx
);
259 static int ieee80211_del_key(struct wiphy
*wiphy
, struct net_device
*dev
,
260 u8 key_idx
, bool pairwise
, const u8
*mac_addr
)
262 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
263 struct ieee80211_local
*local
= sdata
->local
;
264 struct sta_info
*sta
;
265 struct ieee80211_key
*key
= NULL
;
268 mutex_lock(&local
->sta_mtx
);
269 mutex_lock(&local
->key_mtx
);
274 sta
= sta_info_get_bss(sdata
, mac_addr
);
279 key
= key_mtx_dereference(local
, sta
->ptk
[key_idx
]);
281 key
= key_mtx_dereference(local
, sta
->gtk
[key_idx
]);
283 key
= key_mtx_dereference(local
, sdata
->keys
[key_idx
]);
290 ieee80211_key_free(key
, true);
294 mutex_unlock(&local
->key_mtx
);
295 mutex_unlock(&local
->sta_mtx
);
300 static int ieee80211_get_key(struct wiphy
*wiphy
, struct net_device
*dev
,
301 u8 key_idx
, bool pairwise
, const u8
*mac_addr
,
303 void (*callback
)(void *cookie
,
304 struct key_params
*params
))
306 struct ieee80211_sub_if_data
*sdata
;
307 struct sta_info
*sta
= NULL
;
309 struct key_params params
;
310 struct ieee80211_key
*key
= NULL
;
315 struct ieee80211_key_seq kseq
= {};
317 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
322 sta
= sta_info_get_bss(sdata
, mac_addr
);
326 if (pairwise
&& key_idx
< NUM_DEFAULT_KEYS
)
327 key
= rcu_dereference(sta
->ptk
[key_idx
]);
328 else if (!pairwise
&&
329 key_idx
< NUM_DEFAULT_KEYS
+ NUM_DEFAULT_MGMT_KEYS
)
330 key
= rcu_dereference(sta
->gtk
[key_idx
]);
332 key
= rcu_dereference(sdata
->keys
[key_idx
]);
337 memset(¶ms
, 0, sizeof(params
));
339 params
.cipher
= key
->conf
.cipher
;
341 switch (key
->conf
.cipher
) {
342 case WLAN_CIPHER_SUITE_TKIP
:
343 iv32
= key
->u
.tkip
.tx
.iv32
;
344 iv16
= key
->u
.tkip
.tx
.iv16
;
346 if (key
->flags
& KEY_FLAG_UPLOADED_TO_HARDWARE
&&
347 !(key
->conf
.flags
& IEEE80211_KEY_FLAG_GENERATE_IV
)) {
348 drv_get_key_seq(sdata
->local
, key
, &kseq
);
349 iv32
= kseq
.tkip
.iv32
;
350 iv16
= kseq
.tkip
.iv16
;
353 seq
[0] = iv16
& 0xff;
354 seq
[1] = (iv16
>> 8) & 0xff;
355 seq
[2] = iv32
& 0xff;
356 seq
[3] = (iv32
>> 8) & 0xff;
357 seq
[4] = (iv32
>> 16) & 0xff;
358 seq
[5] = (iv32
>> 24) & 0xff;
362 case WLAN_CIPHER_SUITE_CCMP
:
363 case WLAN_CIPHER_SUITE_CCMP_256
:
364 case WLAN_CIPHER_SUITE_AES_CMAC
:
365 case WLAN_CIPHER_SUITE_BIP_CMAC_256
:
366 BUILD_BUG_ON(offsetof(typeof(kseq
), ccmp
) !=
367 offsetof(typeof(kseq
), aes_cmac
));
368 case WLAN_CIPHER_SUITE_BIP_GMAC_128
:
369 case WLAN_CIPHER_SUITE_BIP_GMAC_256
:
370 BUILD_BUG_ON(offsetof(typeof(kseq
), ccmp
) !=
371 offsetof(typeof(kseq
), aes_gmac
));
372 case WLAN_CIPHER_SUITE_GCMP
:
373 case WLAN_CIPHER_SUITE_GCMP_256
:
374 BUILD_BUG_ON(offsetof(typeof(kseq
), ccmp
) !=
375 offsetof(typeof(kseq
), gcmp
));
377 if (key
->flags
& KEY_FLAG_UPLOADED_TO_HARDWARE
&&
378 !(key
->conf
.flags
& IEEE80211_KEY_FLAG_GENERATE_IV
)) {
379 drv_get_key_seq(sdata
->local
, key
, &kseq
);
380 memcpy(seq
, kseq
.ccmp
.pn
, 6);
382 pn64
= atomic64_read(&key
->conf
.tx_pn
);
394 if (!(key
->flags
& KEY_FLAG_UPLOADED_TO_HARDWARE
))
396 if (WARN_ON(key
->conf
.flags
& IEEE80211_KEY_FLAG_GENERATE_IV
))
398 drv_get_key_seq(sdata
->local
, key
, &kseq
);
399 params
.seq
= kseq
.hw
.seq
;
400 params
.seq_len
= kseq
.hw
.seq_len
;
404 params
.key
= key
->conf
.key
;
405 params
.key_len
= key
->conf
.keylen
;
407 callback(cookie
, ¶ms
);
415 static int ieee80211_config_default_key(struct wiphy
*wiphy
,
416 struct net_device
*dev
,
417 u8 key_idx
, bool uni
,
420 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
422 ieee80211_set_default_key(sdata
, key_idx
, uni
, multi
);
427 static int ieee80211_config_default_mgmt_key(struct wiphy
*wiphy
,
428 struct net_device
*dev
,
431 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
433 ieee80211_set_default_mgmt_key(sdata
, key_idx
);
438 void sta_set_rate_info_tx(struct sta_info
*sta
,
439 const struct ieee80211_tx_rate
*rate
,
440 struct rate_info
*rinfo
)
443 if (rate
->flags
& IEEE80211_TX_RC_MCS
) {
444 rinfo
->flags
|= RATE_INFO_FLAGS_MCS
;
445 rinfo
->mcs
= rate
->idx
;
446 } else if (rate
->flags
& IEEE80211_TX_RC_VHT_MCS
) {
447 rinfo
->flags
|= RATE_INFO_FLAGS_VHT_MCS
;
448 rinfo
->mcs
= ieee80211_rate_get_vht_mcs(rate
);
449 rinfo
->nss
= ieee80211_rate_get_vht_nss(rate
);
451 struct ieee80211_supported_band
*sband
;
452 int shift
= ieee80211_vif_get_shift(&sta
->sdata
->vif
);
455 sband
= sta
->local
->hw
.wiphy
->bands
[
456 ieee80211_get_sdata_band(sta
->sdata
)];
457 brate
= sband
->bitrates
[rate
->idx
].bitrate
;
458 rinfo
->legacy
= DIV_ROUND_UP(brate
, 1 << shift
);
460 if (rate
->flags
& IEEE80211_TX_RC_40_MHZ_WIDTH
)
461 rinfo
->bw
= RATE_INFO_BW_40
;
462 else if (rate
->flags
& IEEE80211_TX_RC_80_MHZ_WIDTH
)
463 rinfo
->bw
= RATE_INFO_BW_80
;
464 else if (rate
->flags
& IEEE80211_TX_RC_160_MHZ_WIDTH
)
465 rinfo
->bw
= RATE_INFO_BW_160
;
467 rinfo
->bw
= RATE_INFO_BW_20
;
468 if (rate
->flags
& IEEE80211_TX_RC_SHORT_GI
)
469 rinfo
->flags
|= RATE_INFO_FLAGS_SHORT_GI
;
472 void sta_set_rate_info_rx(struct sta_info
*sta
, struct rate_info
*rinfo
)
476 if (sta
->last_rx_rate_flag
& RX_FLAG_HT
) {
477 rinfo
->flags
|= RATE_INFO_FLAGS_MCS
;
478 rinfo
->mcs
= sta
->last_rx_rate_idx
;
479 } else if (sta
->last_rx_rate_flag
& RX_FLAG_VHT
) {
480 rinfo
->flags
|= RATE_INFO_FLAGS_VHT_MCS
;
481 rinfo
->nss
= sta
->last_rx_rate_vht_nss
;
482 rinfo
->mcs
= sta
->last_rx_rate_idx
;
484 struct ieee80211_supported_band
*sband
;
485 int shift
= ieee80211_vif_get_shift(&sta
->sdata
->vif
);
488 sband
= sta
->local
->hw
.wiphy
->bands
[
489 ieee80211_get_sdata_band(sta
->sdata
)];
490 brate
= sband
->bitrates
[sta
->last_rx_rate_idx
].bitrate
;
491 rinfo
->legacy
= DIV_ROUND_UP(brate
, 1 << shift
);
494 if (sta
->last_rx_rate_flag
& RX_FLAG_SHORT_GI
)
495 rinfo
->flags
|= RATE_INFO_FLAGS_SHORT_GI
;
497 if (sta
->last_rx_rate_flag
& RX_FLAG_5MHZ
)
498 rinfo
->bw
= RATE_INFO_BW_5
;
499 else if (sta
->last_rx_rate_flag
& RX_FLAG_10MHZ
)
500 rinfo
->bw
= RATE_INFO_BW_10
;
501 else if (sta
->last_rx_rate_flag
& RX_FLAG_40MHZ
)
502 rinfo
->bw
= RATE_INFO_BW_40
;
503 else if (sta
->last_rx_rate_vht_flag
& RX_VHT_FLAG_80MHZ
)
504 rinfo
->bw
= RATE_INFO_BW_80
;
505 else if (sta
->last_rx_rate_vht_flag
& RX_VHT_FLAG_160MHZ
)
506 rinfo
->bw
= RATE_INFO_BW_160
;
508 rinfo
->bw
= RATE_INFO_BW_20
;
511 static int ieee80211_dump_station(struct wiphy
*wiphy
, struct net_device
*dev
,
512 int idx
, u8
*mac
, struct station_info
*sinfo
)
514 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
515 struct ieee80211_local
*local
= sdata
->local
;
516 struct sta_info
*sta
;
519 mutex_lock(&local
->sta_mtx
);
521 sta
= sta_info_get_by_idx(sdata
, idx
);
524 memcpy(mac
, sta
->sta
.addr
, ETH_ALEN
);
525 sta_set_sinfo(sta
, sinfo
);
528 mutex_unlock(&local
->sta_mtx
);
533 static int ieee80211_dump_survey(struct wiphy
*wiphy
, struct net_device
*dev
,
534 int idx
, struct survey_info
*survey
)
536 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
538 return drv_get_survey(local
, idx
, survey
);
541 static int ieee80211_get_station(struct wiphy
*wiphy
, struct net_device
*dev
,
542 const u8
*mac
, struct station_info
*sinfo
)
544 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
545 struct ieee80211_local
*local
= sdata
->local
;
546 struct sta_info
*sta
;
549 mutex_lock(&local
->sta_mtx
);
551 sta
= sta_info_get_bss(sdata
, mac
);
554 sta_set_sinfo(sta
, sinfo
);
557 mutex_unlock(&local
->sta_mtx
);
562 static int ieee80211_set_monitor_channel(struct wiphy
*wiphy
,
563 struct cfg80211_chan_def
*chandef
)
565 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
566 struct ieee80211_sub_if_data
*sdata
;
569 if (cfg80211_chandef_identical(&local
->monitor_chandef
, chandef
))
572 mutex_lock(&local
->mtx
);
573 mutex_lock(&local
->iflist_mtx
);
574 if (local
->use_chanctx
) {
575 sdata
= rcu_dereference_protected(
576 local
->monitor_sdata
,
577 lockdep_is_held(&local
->iflist_mtx
));
579 ieee80211_vif_release_channel(sdata
);
580 ret
= ieee80211_vif_use_channel(sdata
, chandef
,
581 IEEE80211_CHANCTX_EXCLUSIVE
);
583 } else if (local
->open_count
== local
->monitors
) {
584 local
->_oper_chandef
= *chandef
;
585 ieee80211_hw_config(local
, 0);
589 local
->monitor_chandef
= *chandef
;
590 mutex_unlock(&local
->iflist_mtx
);
591 mutex_unlock(&local
->mtx
);
596 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data
*sdata
,
597 const u8
*resp
, size_t resp_len
,
598 const struct ieee80211_csa_settings
*csa
)
600 struct probe_resp
*new, *old
;
602 if (!resp
|| !resp_len
)
605 old
= sdata_dereference(sdata
->u
.ap
.probe_resp
, sdata
);
607 new = kzalloc(sizeof(struct probe_resp
) + resp_len
, GFP_KERNEL
);
612 memcpy(new->data
, resp
, resp_len
);
615 memcpy(new->csa_counter_offsets
, csa
->counter_offsets_presp
,
616 csa
->n_counter_offsets_presp
*
617 sizeof(new->csa_counter_offsets
[0]));
619 rcu_assign_pointer(sdata
->u
.ap
.probe_resp
, new);
621 kfree_rcu(old
, rcu_head
);
626 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data
*sdata
,
627 struct cfg80211_beacon_data
*params
,
628 const struct ieee80211_csa_settings
*csa
)
630 struct beacon_data
*new, *old
;
631 int new_head_len
, new_tail_len
;
633 u32 changed
= BSS_CHANGED_BEACON
;
635 old
= sdata_dereference(sdata
->u
.ap
.beacon
, sdata
);
638 /* Need to have a beacon head if we don't have one yet */
639 if (!params
->head
&& !old
)
642 /* new or old head? */
644 new_head_len
= params
->head_len
;
646 new_head_len
= old
->head_len
;
648 /* new or old tail? */
649 if (params
->tail
|| !old
)
650 /* params->tail_len will be zero for !params->tail */
651 new_tail_len
= params
->tail_len
;
653 new_tail_len
= old
->tail_len
;
655 size
= sizeof(*new) + new_head_len
+ new_tail_len
;
657 new = kzalloc(size
, GFP_KERNEL
);
661 /* start filling the new info now */
664 * pointers go into the block we allocated,
665 * memory is | beacon_data | head | tail |
667 new->head
= ((u8
*) new) + sizeof(*new);
668 new->tail
= new->head
+ new_head_len
;
669 new->head_len
= new_head_len
;
670 new->tail_len
= new_tail_len
;
673 new->csa_current_counter
= csa
->count
;
674 memcpy(new->csa_counter_offsets
, csa
->counter_offsets_beacon
,
675 csa
->n_counter_offsets_beacon
*
676 sizeof(new->csa_counter_offsets
[0]));
681 memcpy(new->head
, params
->head
, new_head_len
);
683 memcpy(new->head
, old
->head
, new_head_len
);
685 /* copy in optional tail */
687 memcpy(new->tail
, params
->tail
, new_tail_len
);
690 memcpy(new->tail
, old
->tail
, new_tail_len
);
692 err
= ieee80211_set_probe_resp(sdata
, params
->probe_resp
,
693 params
->probe_resp_len
, csa
);
697 changed
|= BSS_CHANGED_AP_PROBE_RESP
;
699 rcu_assign_pointer(sdata
->u
.ap
.beacon
, new);
702 kfree_rcu(old
, rcu_head
);
707 static int ieee80211_start_ap(struct wiphy
*wiphy
, struct net_device
*dev
,
708 struct cfg80211_ap_settings
*params
)
710 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
711 struct ieee80211_local
*local
= sdata
->local
;
712 struct beacon_data
*old
;
713 struct ieee80211_sub_if_data
*vlan
;
714 u32 changed
= BSS_CHANGED_BEACON_INT
|
715 BSS_CHANGED_BEACON_ENABLED
|
722 old
= sdata_dereference(sdata
->u
.ap
.beacon
, sdata
);
726 switch (params
->smps_mode
) {
727 case NL80211_SMPS_OFF
:
728 sdata
->smps_mode
= IEEE80211_SMPS_OFF
;
730 case NL80211_SMPS_STATIC
:
731 sdata
->smps_mode
= IEEE80211_SMPS_STATIC
;
733 case NL80211_SMPS_DYNAMIC
:
734 sdata
->smps_mode
= IEEE80211_SMPS_DYNAMIC
;
739 sdata
->needed_rx_chains
= sdata
->local
->rx_chains
;
741 mutex_lock(&local
->mtx
);
742 err
= ieee80211_vif_use_channel(sdata
, ¶ms
->chandef
,
743 IEEE80211_CHANCTX_SHARED
);
745 ieee80211_vif_copy_chanctx_to_vlans(sdata
, false);
746 mutex_unlock(&local
->mtx
);
751 * Apply control port protocol, this allows us to
752 * not encrypt dynamic WEP control frames.
754 sdata
->control_port_protocol
= params
->crypto
.control_port_ethertype
;
755 sdata
->control_port_no_encrypt
= params
->crypto
.control_port_no_encrypt
;
756 sdata
->encrypt_headroom
= ieee80211_cs_headroom(sdata
->local
,
760 list_for_each_entry(vlan
, &sdata
->u
.ap
.vlans
, u
.vlan
.list
) {
761 vlan
->control_port_protocol
=
762 params
->crypto
.control_port_ethertype
;
763 vlan
->control_port_no_encrypt
=
764 params
->crypto
.control_port_no_encrypt
;
765 vlan
->encrypt_headroom
=
766 ieee80211_cs_headroom(sdata
->local
,
771 sdata
->vif
.bss_conf
.beacon_int
= params
->beacon_interval
;
772 sdata
->vif
.bss_conf
.dtim_period
= params
->dtim_period
;
773 sdata
->vif
.bss_conf
.enable_beacon
= true;
775 sdata
->vif
.bss_conf
.ssid_len
= params
->ssid_len
;
776 if (params
->ssid_len
)
777 memcpy(sdata
->vif
.bss_conf
.ssid
, params
->ssid
,
779 sdata
->vif
.bss_conf
.hidden_ssid
=
780 (params
->hidden_ssid
!= NL80211_HIDDEN_SSID_NOT_IN_USE
);
782 memset(&sdata
->vif
.bss_conf
.p2p_noa_attr
, 0,
783 sizeof(sdata
->vif
.bss_conf
.p2p_noa_attr
));
784 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
=
785 params
->p2p_ctwindow
& IEEE80211_P2P_OPPPS_CTWINDOW_MASK
;
786 if (params
->p2p_opp_ps
)
787 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
|=
788 IEEE80211_P2P_OPPPS_ENABLE_BIT
;
790 err
= ieee80211_assign_beacon(sdata
, ¶ms
->beacon
, NULL
);
792 ieee80211_vif_release_channel(sdata
);
797 err
= drv_start_ap(sdata
->local
, sdata
);
799 old
= sdata_dereference(sdata
->u
.ap
.beacon
, sdata
);
802 kfree_rcu(old
, rcu_head
);
803 RCU_INIT_POINTER(sdata
->u
.ap
.beacon
, NULL
);
804 ieee80211_vif_release_channel(sdata
);
808 ieee80211_recalc_dtim(local
, sdata
);
809 ieee80211_bss_info_change_notify(sdata
, changed
);
811 netif_carrier_on(dev
);
812 list_for_each_entry(vlan
, &sdata
->u
.ap
.vlans
, u
.vlan
.list
)
813 netif_carrier_on(vlan
->dev
);
818 static int ieee80211_change_beacon(struct wiphy
*wiphy
, struct net_device
*dev
,
819 struct cfg80211_beacon_data
*params
)
821 struct ieee80211_sub_if_data
*sdata
;
822 struct beacon_data
*old
;
825 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
826 sdata_assert_lock(sdata
);
828 /* don't allow changing the beacon while CSA is in place - offset
829 * of channel switch counter may change
831 if (sdata
->vif
.csa_active
)
834 old
= sdata_dereference(sdata
->u
.ap
.beacon
, sdata
);
838 err
= ieee80211_assign_beacon(sdata
, params
, NULL
);
841 ieee80211_bss_info_change_notify(sdata
, err
);
845 static int ieee80211_stop_ap(struct wiphy
*wiphy
, struct net_device
*dev
)
847 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
848 struct ieee80211_sub_if_data
*vlan
;
849 struct ieee80211_local
*local
= sdata
->local
;
850 struct beacon_data
*old_beacon
;
851 struct probe_resp
*old_probe_resp
;
852 struct cfg80211_chan_def chandef
;
854 sdata_assert_lock(sdata
);
856 old_beacon
= sdata_dereference(sdata
->u
.ap
.beacon
, sdata
);
859 old_probe_resp
= sdata_dereference(sdata
->u
.ap
.probe_resp
, sdata
);
861 /* abort any running channel switch */
862 mutex_lock(&local
->mtx
);
863 sdata
->vif
.csa_active
= false;
864 if (sdata
->csa_block_tx
) {
865 ieee80211_wake_vif_queues(local
, sdata
,
866 IEEE80211_QUEUE_STOP_REASON_CSA
);
867 sdata
->csa_block_tx
= false;
870 mutex_unlock(&local
->mtx
);
872 kfree(sdata
->u
.ap
.next_beacon
);
873 sdata
->u
.ap
.next_beacon
= NULL
;
875 /* turn off carrier for this interface and dependent VLANs */
876 list_for_each_entry(vlan
, &sdata
->u
.ap
.vlans
, u
.vlan
.list
)
877 netif_carrier_off(vlan
->dev
);
878 netif_carrier_off(dev
);
880 /* remove beacon and probe response */
881 RCU_INIT_POINTER(sdata
->u
.ap
.beacon
, NULL
);
882 RCU_INIT_POINTER(sdata
->u
.ap
.probe_resp
, NULL
);
883 kfree_rcu(old_beacon
, rcu_head
);
885 kfree_rcu(old_probe_resp
, rcu_head
);
886 sdata
->u
.ap
.driver_smps_mode
= IEEE80211_SMPS_OFF
;
888 __sta_info_flush(sdata
, true);
889 ieee80211_free_keys(sdata
, true);
891 sdata
->vif
.bss_conf
.enable_beacon
= false;
892 sdata
->vif
.bss_conf
.ssid_len
= 0;
893 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED
, &sdata
->state
);
894 ieee80211_bss_info_change_notify(sdata
, BSS_CHANGED_BEACON_ENABLED
);
896 if (sdata
->wdev
.cac_started
) {
897 chandef
= sdata
->vif
.bss_conf
.chandef
;
898 cancel_delayed_work_sync(&sdata
->dfs_cac_timer_work
);
899 cfg80211_cac_event(sdata
->dev
, &chandef
,
900 NL80211_RADAR_CAC_ABORTED
,
904 drv_stop_ap(sdata
->local
, sdata
);
906 /* free all potentially still buffered bcast frames */
907 local
->total_ps_buffered
-= skb_queue_len(&sdata
->u
.ap
.ps
.bc_buf
);
908 skb_queue_purge(&sdata
->u
.ap
.ps
.bc_buf
);
910 mutex_lock(&local
->mtx
);
911 ieee80211_vif_copy_chanctx_to_vlans(sdata
, true);
912 ieee80211_vif_release_channel(sdata
);
913 mutex_unlock(&local
->mtx
);
918 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
919 struct iapp_layer2_update
{
920 u8 da
[ETH_ALEN
]; /* broadcast */
921 u8 sa
[ETH_ALEN
]; /* STA addr */
929 static void ieee80211_send_layer2_update(struct sta_info
*sta
)
931 struct iapp_layer2_update
*msg
;
934 /* Send Level 2 Update Frame to update forwarding tables in layer 2
937 skb
= dev_alloc_skb(sizeof(*msg
));
940 msg
= (struct iapp_layer2_update
*)skb_put(skb
, sizeof(*msg
));
942 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
943 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
945 eth_broadcast_addr(msg
->da
);
946 memcpy(msg
->sa
, sta
->sta
.addr
, ETH_ALEN
);
949 msg
->ssap
= 0x01; /* NULL LSAP, CR Bit: Response */
950 msg
->control
= 0xaf; /* XID response lsb.1111F101.
951 * F=0 (no poll command; unsolicited frame) */
952 msg
->xid_info
[0] = 0x81; /* XID format identifier */
953 msg
->xid_info
[1] = 1; /* LLC types/classes: Type 1 LLC */
954 msg
->xid_info
[2] = 0; /* XID sender's receive window size (RW) */
956 skb
->dev
= sta
->sdata
->dev
;
957 skb
->protocol
= eth_type_trans(skb
, sta
->sdata
->dev
);
958 memset(skb
->cb
, 0, sizeof(skb
->cb
));
962 static int sta_apply_auth_flags(struct ieee80211_local
*local
,
963 struct sta_info
*sta
,
968 if (mask
& BIT(NL80211_STA_FLAG_AUTHENTICATED
) &&
969 set
& BIT(NL80211_STA_FLAG_AUTHENTICATED
) &&
970 !test_sta_flag(sta
, WLAN_STA_AUTH
)) {
971 ret
= sta_info_move_state(sta
, IEEE80211_STA_AUTH
);
976 if (mask
& BIT(NL80211_STA_FLAG_ASSOCIATED
) &&
977 set
& BIT(NL80211_STA_FLAG_ASSOCIATED
) &&
978 !test_sta_flag(sta
, WLAN_STA_ASSOC
)) {
980 * When peer becomes associated, init rate control as
981 * well. Some drivers require rate control initialized
982 * before drv_sta_state() is called.
984 if (!test_sta_flag(sta
, WLAN_STA_RATE_CONTROL
))
985 rate_control_rate_init(sta
);
987 ret
= sta_info_move_state(sta
, IEEE80211_STA_ASSOC
);
992 if (mask
& BIT(NL80211_STA_FLAG_AUTHORIZED
)) {
993 if (set
& BIT(NL80211_STA_FLAG_AUTHORIZED
))
994 ret
= sta_info_move_state(sta
, IEEE80211_STA_AUTHORIZED
);
995 else if (test_sta_flag(sta
, WLAN_STA_AUTHORIZED
))
996 ret
= sta_info_move_state(sta
, IEEE80211_STA_ASSOC
);
1003 if (mask
& BIT(NL80211_STA_FLAG_ASSOCIATED
) &&
1004 !(set
& BIT(NL80211_STA_FLAG_ASSOCIATED
)) &&
1005 test_sta_flag(sta
, WLAN_STA_ASSOC
)) {
1006 ret
= sta_info_move_state(sta
, IEEE80211_STA_AUTH
);
1011 if (mask
& BIT(NL80211_STA_FLAG_AUTHENTICATED
) &&
1012 !(set
& BIT(NL80211_STA_FLAG_AUTHENTICATED
)) &&
1013 test_sta_flag(sta
, WLAN_STA_AUTH
)) {
1014 ret
= sta_info_move_state(sta
, IEEE80211_STA_NONE
);
1022 static void sta_apply_mesh_params(struct ieee80211_local
*local
,
1023 struct sta_info
*sta
,
1024 struct station_parameters
*params
)
1026 #ifdef CONFIG_MAC80211_MESH
1027 struct ieee80211_sub_if_data
*sdata
= sta
->sdata
;
1030 if (params
->sta_modify_mask
& STATION_PARAM_APPLY_PLINK_STATE
) {
1031 switch (params
->plink_state
) {
1032 case NL80211_PLINK_ESTAB
:
1033 if (sta
->mesh
->plink_state
!= NL80211_PLINK_ESTAB
)
1034 changed
= mesh_plink_inc_estab_count(sdata
);
1035 sta
->mesh
->plink_state
= params
->plink_state
;
1037 ieee80211_mps_sta_status_update(sta
);
1038 changed
|= ieee80211_mps_set_sta_local_pm(sta
,
1039 sdata
->u
.mesh
.mshcfg
.power_mode
);
1041 case NL80211_PLINK_LISTEN
:
1042 case NL80211_PLINK_BLOCKED
:
1043 case NL80211_PLINK_OPN_SNT
:
1044 case NL80211_PLINK_OPN_RCVD
:
1045 case NL80211_PLINK_CNF_RCVD
:
1046 case NL80211_PLINK_HOLDING
:
1047 if (sta
->mesh
->plink_state
== NL80211_PLINK_ESTAB
)
1048 changed
= mesh_plink_dec_estab_count(sdata
);
1049 sta
->mesh
->plink_state
= params
->plink_state
;
1051 ieee80211_mps_sta_status_update(sta
);
1052 changed
|= ieee80211_mps_set_sta_local_pm(sta
,
1053 NL80211_MESH_POWER_UNKNOWN
);
1061 switch (params
->plink_action
) {
1062 case NL80211_PLINK_ACTION_NO_ACTION
:
1065 case NL80211_PLINK_ACTION_OPEN
:
1066 changed
|= mesh_plink_open(sta
);
1068 case NL80211_PLINK_ACTION_BLOCK
:
1069 changed
|= mesh_plink_block(sta
);
1073 if (params
->local_pm
)
1074 changed
|= ieee80211_mps_set_sta_local_pm(sta
,
1077 ieee80211_mbss_info_change_notify(sdata
, changed
);
1081 static int sta_apply_parameters(struct ieee80211_local
*local
,
1082 struct sta_info
*sta
,
1083 struct station_parameters
*params
)
1086 struct ieee80211_supported_band
*sband
;
1087 struct ieee80211_sub_if_data
*sdata
= sta
->sdata
;
1088 enum ieee80211_band band
= ieee80211_get_sdata_band(sdata
);
1091 sband
= local
->hw
.wiphy
->bands
[band
];
1093 mask
= params
->sta_flags_mask
;
1094 set
= params
->sta_flags_set
;
1096 if (ieee80211_vif_is_mesh(&sdata
->vif
)) {
1098 * In mesh mode, ASSOCIATED isn't part of the nl80211
1099 * API but must follow AUTHENTICATED for driver state.
1101 if (mask
& BIT(NL80211_STA_FLAG_AUTHENTICATED
))
1102 mask
|= BIT(NL80211_STA_FLAG_ASSOCIATED
);
1103 if (set
& BIT(NL80211_STA_FLAG_AUTHENTICATED
))
1104 set
|= BIT(NL80211_STA_FLAG_ASSOCIATED
);
1105 } else if (test_sta_flag(sta
, WLAN_STA_TDLS_PEER
)) {
1107 * TDLS -- everything follows authorized, but
1108 * only becoming authorized is possible, not
1111 if (set
& BIT(NL80211_STA_FLAG_AUTHORIZED
)) {
1112 set
|= BIT(NL80211_STA_FLAG_AUTHENTICATED
) |
1113 BIT(NL80211_STA_FLAG_ASSOCIATED
);
1114 mask
|= BIT(NL80211_STA_FLAG_AUTHENTICATED
) |
1115 BIT(NL80211_STA_FLAG_ASSOCIATED
);
1119 if (mask
& BIT(NL80211_STA_FLAG_WME
) &&
1120 local
->hw
.queues
>= IEEE80211_NUM_ACS
)
1121 sta
->sta
.wme
= set
& BIT(NL80211_STA_FLAG_WME
);
1123 /* auth flags will be set later for TDLS,
1124 * and for unassociated stations that move to assocaited */
1125 if (!test_sta_flag(sta
, WLAN_STA_TDLS_PEER
) &&
1126 !((mask
& BIT(NL80211_STA_FLAG_ASSOCIATED
)) &&
1127 (set
& BIT(NL80211_STA_FLAG_ASSOCIATED
)))) {
1128 ret
= sta_apply_auth_flags(local
, sta
, mask
, set
);
1133 if (mask
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
)) {
1134 if (set
& BIT(NL80211_STA_FLAG_SHORT_PREAMBLE
))
1135 set_sta_flag(sta
, WLAN_STA_SHORT_PREAMBLE
);
1137 clear_sta_flag(sta
, WLAN_STA_SHORT_PREAMBLE
);
1140 if (mask
& BIT(NL80211_STA_FLAG_MFP
)) {
1141 if (set
& BIT(NL80211_STA_FLAG_MFP
))
1142 set_sta_flag(sta
, WLAN_STA_MFP
);
1144 clear_sta_flag(sta
, WLAN_STA_MFP
);
1147 if (mask
& BIT(NL80211_STA_FLAG_TDLS_PEER
)) {
1148 if (set
& BIT(NL80211_STA_FLAG_TDLS_PEER
))
1149 set_sta_flag(sta
, WLAN_STA_TDLS_PEER
);
1151 clear_sta_flag(sta
, WLAN_STA_TDLS_PEER
);
1154 /* mark TDLS channel switch support, if the AP allows it */
1155 if (test_sta_flag(sta
, WLAN_STA_TDLS_PEER
) &&
1156 !sdata
->u
.mgd
.tdls_chan_switch_prohibited
&&
1157 params
->ext_capab_len
>= 4 &&
1158 params
->ext_capab
[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH
)
1159 set_sta_flag(sta
, WLAN_STA_TDLS_CHAN_SWITCH
);
1161 if (test_sta_flag(sta
, WLAN_STA_TDLS_PEER
) &&
1162 !sdata
->u
.mgd
.tdls_wider_bw_prohibited
&&
1163 ieee80211_hw_check(&local
->hw
, TDLS_WIDER_BW
) &&
1164 params
->ext_capab_len
>= 8 &&
1165 params
->ext_capab
[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED
)
1166 set_sta_flag(sta
, WLAN_STA_TDLS_WIDER_BW
);
1168 if (params
->sta_modify_mask
& STATION_PARAM_APPLY_UAPSD
) {
1169 sta
->sta
.uapsd_queues
= params
->uapsd_queues
;
1170 sta
->sta
.max_sp
= params
->max_sp
;
1174 * cfg80211 validates this (1-2007) and allows setting the AID
1175 * only when creating a new station entry
1178 sta
->sta
.aid
= params
->aid
;
1181 * Some of the following updates would be racy if called on an
1182 * existing station, via ieee80211_change_station(). However,
1183 * all such changes are rejected by cfg80211 except for updates
1184 * changing the supported rates on an existing but not yet used
1188 if (params
->listen_interval
>= 0)
1189 sta
->listen_interval
= params
->listen_interval
;
1191 if (params
->supported_rates
) {
1192 ieee80211_parse_bitrates(&sdata
->vif
.bss_conf
.chandef
,
1193 sband
, params
->supported_rates
,
1194 params
->supported_rates_len
,
1195 &sta
->sta
.supp_rates
[band
]);
1198 if (params
->ht_capa
)
1199 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata
, sband
,
1200 params
->ht_capa
, sta
);
1202 if (params
->vht_capa
)
1203 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata
, sband
,
1204 params
->vht_capa
, sta
);
1206 if (params
->opmode_notif_used
) {
1207 /* returned value is only needed for rc update, but the
1208 * rc isn't initialized here yet, so ignore it
1210 __ieee80211_vht_handle_opmode(sdata
, sta
,
1211 params
->opmode_notif
,
1215 if (ieee80211_vif_is_mesh(&sdata
->vif
))
1216 sta_apply_mesh_params(local
, sta
, params
);
1218 /* set the STA state after all sta info from usermode has been set */
1219 if (test_sta_flag(sta
, WLAN_STA_TDLS_PEER
) ||
1220 set
& BIT(NL80211_STA_FLAG_ASSOCIATED
)) {
1221 ret
= sta_apply_auth_flags(local
, sta
, mask
, set
);
1229 static int ieee80211_add_station(struct wiphy
*wiphy
, struct net_device
*dev
,
1231 struct station_parameters
*params
)
1233 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
1234 struct sta_info
*sta
;
1235 struct ieee80211_sub_if_data
*sdata
;
1240 sdata
= IEEE80211_DEV_TO_SUB_IF(params
->vlan
);
1242 if (sdata
->vif
.type
!= NL80211_IFTYPE_AP_VLAN
&&
1243 sdata
->vif
.type
!= NL80211_IFTYPE_AP
)
1246 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1248 if (ether_addr_equal(mac
, sdata
->vif
.addr
))
1251 if (is_multicast_ether_addr(mac
))
1254 sta
= sta_info_alloc(sdata
, mac
, GFP_KERNEL
);
1259 * defaults -- if userspace wants something else we'll
1260 * change it accordingly in sta_apply_parameters()
1262 if (!(params
->sta_flags_set
& BIT(NL80211_STA_FLAG_TDLS_PEER
)) &&
1263 !(params
->sta_flags_set
& (BIT(NL80211_STA_FLAG_AUTHENTICATED
) |
1264 BIT(NL80211_STA_FLAG_ASSOCIATED
)))) {
1265 sta_info_pre_move_state(sta
, IEEE80211_STA_AUTH
);
1266 sta_info_pre_move_state(sta
, IEEE80211_STA_ASSOC
);
1268 if (params
->sta_flags_set
& BIT(NL80211_STA_FLAG_TDLS_PEER
))
1269 sta
->sta
.tdls
= true;
1271 err
= sta_apply_parameters(local
, sta
, params
);
1273 sta_info_free(local
, sta
);
1278 * for TDLS and for unassociated station, rate control should be
1279 * initialized only when rates are known and station is marked
1280 * authorized/associated
1282 if (!test_sta_flag(sta
, WLAN_STA_TDLS_PEER
) &&
1283 test_sta_flag(sta
, WLAN_STA_ASSOC
))
1284 rate_control_rate_init(sta
);
1286 layer2_update
= sdata
->vif
.type
== NL80211_IFTYPE_AP_VLAN
||
1287 sdata
->vif
.type
== NL80211_IFTYPE_AP
;
1289 err
= sta_info_insert_rcu(sta
);
1296 ieee80211_send_layer2_update(sta
);
1303 static int ieee80211_del_station(struct wiphy
*wiphy
, struct net_device
*dev
,
1304 struct station_del_parameters
*params
)
1306 struct ieee80211_sub_if_data
*sdata
;
1308 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1311 return sta_info_destroy_addr_bss(sdata
, params
->mac
);
1313 sta_info_flush(sdata
);
1317 static int ieee80211_change_station(struct wiphy
*wiphy
,
1318 struct net_device
*dev
, const u8
*mac
,
1319 struct station_parameters
*params
)
1321 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1322 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
1323 struct sta_info
*sta
;
1324 struct ieee80211_sub_if_data
*vlansdata
;
1325 enum cfg80211_station_type statype
;
1328 mutex_lock(&local
->sta_mtx
);
1330 sta
= sta_info_get_bss(sdata
, mac
);
1336 switch (sdata
->vif
.type
) {
1337 case NL80211_IFTYPE_MESH_POINT
:
1338 if (sdata
->u
.mesh
.user_mpm
)
1339 statype
= CFG80211_STA_MESH_PEER_USER
;
1341 statype
= CFG80211_STA_MESH_PEER_KERNEL
;
1343 case NL80211_IFTYPE_ADHOC
:
1344 statype
= CFG80211_STA_IBSS
;
1346 case NL80211_IFTYPE_STATION
:
1347 if (!test_sta_flag(sta
, WLAN_STA_TDLS_PEER
)) {
1348 statype
= CFG80211_STA_AP_STA
;
1351 if (test_sta_flag(sta
, WLAN_STA_AUTHORIZED
))
1352 statype
= CFG80211_STA_TDLS_PEER_ACTIVE
;
1354 statype
= CFG80211_STA_TDLS_PEER_SETUP
;
1356 case NL80211_IFTYPE_AP
:
1357 case NL80211_IFTYPE_AP_VLAN
:
1358 if (test_sta_flag(sta
, WLAN_STA_ASSOC
))
1359 statype
= CFG80211_STA_AP_CLIENT
;
1361 statype
= CFG80211_STA_AP_CLIENT_UNASSOC
;
1368 err
= cfg80211_check_station_change(wiphy
, params
, statype
);
1372 if (params
->vlan
&& params
->vlan
!= sta
->sdata
->dev
) {
1373 bool prev_4addr
= false;
1374 bool new_4addr
= false;
1376 vlansdata
= IEEE80211_DEV_TO_SUB_IF(params
->vlan
);
1378 if (params
->vlan
->ieee80211_ptr
->use_4addr
) {
1379 if (vlansdata
->u
.vlan
.sta
) {
1384 rcu_assign_pointer(vlansdata
->u
.vlan
.sta
, sta
);
1388 if (sta
->sdata
->vif
.type
== NL80211_IFTYPE_AP_VLAN
&&
1389 sta
->sdata
->u
.vlan
.sta
) {
1390 RCU_INIT_POINTER(sta
->sdata
->u
.vlan
.sta
, NULL
);
1394 sta
->sdata
= vlansdata
;
1395 ieee80211_check_fast_xmit(sta
);
1397 if (sta
->sta_state
== IEEE80211_STA_AUTHORIZED
&&
1398 prev_4addr
!= new_4addr
) {
1400 atomic_dec(&sta
->sdata
->bss
->num_mcast_sta
);
1402 atomic_inc(&sta
->sdata
->bss
->num_mcast_sta
);
1405 ieee80211_send_layer2_update(sta
);
1408 err
= sta_apply_parameters(local
, sta
, params
);
1412 mutex_unlock(&local
->sta_mtx
);
1414 if ((sdata
->vif
.type
== NL80211_IFTYPE_AP
||
1415 sdata
->vif
.type
== NL80211_IFTYPE_AP_VLAN
) &&
1416 sta
->known_smps_mode
!= sta
->sdata
->bss
->req_smps
&&
1417 test_sta_flag(sta
, WLAN_STA_AUTHORIZED
) &&
1418 sta_info_tx_streams(sta
) != 1) {
1420 "%pM just authorized and MIMO capable - update SMPS\n",
1422 ieee80211_send_smps_action(sta
->sdata
,
1423 sta
->sdata
->bss
->req_smps
,
1425 sta
->sdata
->vif
.bss_conf
.bssid
);
1428 if (sdata
->vif
.type
== NL80211_IFTYPE_STATION
&&
1429 params
->sta_flags_mask
& BIT(NL80211_STA_FLAG_AUTHORIZED
)) {
1430 ieee80211_recalc_ps(local
, -1);
1431 ieee80211_recalc_ps_vif(sdata
);
1436 mutex_unlock(&local
->sta_mtx
);
1440 #ifdef CONFIG_MAC80211_MESH
1441 static int ieee80211_add_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1442 const u8
*dst
, const u8
*next_hop
)
1444 struct ieee80211_sub_if_data
*sdata
;
1445 struct mesh_path
*mpath
;
1446 struct sta_info
*sta
;
1448 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1451 sta
= sta_info_get(sdata
, next_hop
);
1457 mpath
= mesh_path_add(sdata
, dst
);
1458 if (IS_ERR(mpath
)) {
1460 return PTR_ERR(mpath
);
1463 mesh_path_fix_nexthop(mpath
, sta
);
1469 static int ieee80211_del_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1472 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1475 return mesh_path_del(sdata
, dst
);
1477 mesh_path_flush_by_iface(sdata
);
1481 static int ieee80211_change_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1482 const u8
*dst
, const u8
*next_hop
)
1484 struct ieee80211_sub_if_data
*sdata
;
1485 struct mesh_path
*mpath
;
1486 struct sta_info
*sta
;
1488 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1492 sta
= sta_info_get(sdata
, next_hop
);
1498 mpath
= mesh_path_lookup(sdata
, dst
);
1504 mesh_path_fix_nexthop(mpath
, sta
);
1510 static void mpath_set_pinfo(struct mesh_path
*mpath
, u8
*next_hop
,
1511 struct mpath_info
*pinfo
)
1513 struct sta_info
*next_hop_sta
= rcu_dereference(mpath
->next_hop
);
1516 memcpy(next_hop
, next_hop_sta
->sta
.addr
, ETH_ALEN
);
1518 eth_zero_addr(next_hop
);
1520 memset(pinfo
, 0, sizeof(*pinfo
));
1522 pinfo
->generation
= mesh_paths_generation
;
1524 pinfo
->filled
= MPATH_INFO_FRAME_QLEN
|
1527 MPATH_INFO_EXPTIME
|
1528 MPATH_INFO_DISCOVERY_TIMEOUT
|
1529 MPATH_INFO_DISCOVERY_RETRIES
|
1532 pinfo
->frame_qlen
= mpath
->frame_queue
.qlen
;
1533 pinfo
->sn
= mpath
->sn
;
1534 pinfo
->metric
= mpath
->metric
;
1535 if (time_before(jiffies
, mpath
->exp_time
))
1536 pinfo
->exptime
= jiffies_to_msecs(mpath
->exp_time
- jiffies
);
1537 pinfo
->discovery_timeout
=
1538 jiffies_to_msecs(mpath
->discovery_timeout
);
1539 pinfo
->discovery_retries
= mpath
->discovery_retries
;
1540 if (mpath
->flags
& MESH_PATH_ACTIVE
)
1541 pinfo
->flags
|= NL80211_MPATH_FLAG_ACTIVE
;
1542 if (mpath
->flags
& MESH_PATH_RESOLVING
)
1543 pinfo
->flags
|= NL80211_MPATH_FLAG_RESOLVING
;
1544 if (mpath
->flags
& MESH_PATH_SN_VALID
)
1545 pinfo
->flags
|= NL80211_MPATH_FLAG_SN_VALID
;
1546 if (mpath
->flags
& MESH_PATH_FIXED
)
1547 pinfo
->flags
|= NL80211_MPATH_FLAG_FIXED
;
1548 if (mpath
->flags
& MESH_PATH_RESOLVED
)
1549 pinfo
->flags
|= NL80211_MPATH_FLAG_RESOLVED
;
1552 static int ieee80211_get_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1553 u8
*dst
, u8
*next_hop
, struct mpath_info
*pinfo
)
1556 struct ieee80211_sub_if_data
*sdata
;
1557 struct mesh_path
*mpath
;
1559 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1562 mpath
= mesh_path_lookup(sdata
, dst
);
1567 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1568 mpath_set_pinfo(mpath
, next_hop
, pinfo
);
1573 static int ieee80211_dump_mpath(struct wiphy
*wiphy
, struct net_device
*dev
,
1574 int idx
, u8
*dst
, u8
*next_hop
,
1575 struct mpath_info
*pinfo
)
1577 struct ieee80211_sub_if_data
*sdata
;
1578 struct mesh_path
*mpath
;
1580 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1583 mpath
= mesh_path_lookup_by_idx(sdata
, idx
);
1588 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1589 mpath_set_pinfo(mpath
, next_hop
, pinfo
);
1594 static void mpp_set_pinfo(struct mesh_path
*mpath
, u8
*mpp
,
1595 struct mpath_info
*pinfo
)
1597 memset(pinfo
, 0, sizeof(*pinfo
));
1598 memcpy(mpp
, mpath
->mpp
, ETH_ALEN
);
1600 pinfo
->generation
= mpp_paths_generation
;
1603 static int ieee80211_get_mpp(struct wiphy
*wiphy
, struct net_device
*dev
,
1604 u8
*dst
, u8
*mpp
, struct mpath_info
*pinfo
)
1607 struct ieee80211_sub_if_data
*sdata
;
1608 struct mesh_path
*mpath
;
1610 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1613 mpath
= mpp_path_lookup(sdata
, dst
);
1618 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1619 mpp_set_pinfo(mpath
, mpp
, pinfo
);
1624 static int ieee80211_dump_mpp(struct wiphy
*wiphy
, struct net_device
*dev
,
1625 int idx
, u8
*dst
, u8
*mpp
,
1626 struct mpath_info
*pinfo
)
1628 struct ieee80211_sub_if_data
*sdata
;
1629 struct mesh_path
*mpath
;
1631 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1634 mpath
= mpp_path_lookup_by_idx(sdata
, idx
);
1639 memcpy(dst
, mpath
->dst
, ETH_ALEN
);
1640 mpp_set_pinfo(mpath
, mpp
, pinfo
);
1645 static int ieee80211_get_mesh_config(struct wiphy
*wiphy
,
1646 struct net_device
*dev
,
1647 struct mesh_config
*conf
)
1649 struct ieee80211_sub_if_data
*sdata
;
1650 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1652 memcpy(conf
, &(sdata
->u
.mesh
.mshcfg
), sizeof(struct mesh_config
));
1656 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm
, u32 mask
)
1658 return (mask
>> (parm
-1)) & 0x1;
1661 static int copy_mesh_setup(struct ieee80211_if_mesh
*ifmsh
,
1662 const struct mesh_setup
*setup
)
1666 struct ieee80211_sub_if_data
*sdata
= container_of(ifmsh
,
1667 struct ieee80211_sub_if_data
, u
.mesh
);
1669 /* allocate information elements */
1673 if (setup
->ie_len
) {
1674 new_ie
= kmemdup(setup
->ie
, setup
->ie_len
,
1679 ifmsh
->ie_len
= setup
->ie_len
;
1683 /* now copy the rest of the setup parameters */
1684 ifmsh
->mesh_id_len
= setup
->mesh_id_len
;
1685 memcpy(ifmsh
->mesh_id
, setup
->mesh_id
, ifmsh
->mesh_id_len
);
1686 ifmsh
->mesh_sp_id
= setup
->sync_method
;
1687 ifmsh
->mesh_pp_id
= setup
->path_sel_proto
;
1688 ifmsh
->mesh_pm_id
= setup
->path_metric
;
1689 ifmsh
->user_mpm
= setup
->user_mpm
;
1690 ifmsh
->mesh_auth_id
= setup
->auth_id
;
1691 ifmsh
->security
= IEEE80211_MESH_SEC_NONE
;
1692 if (setup
->is_authenticated
)
1693 ifmsh
->security
|= IEEE80211_MESH_SEC_AUTHED
;
1694 if (setup
->is_secure
)
1695 ifmsh
->security
|= IEEE80211_MESH_SEC_SECURED
;
1697 /* mcast rate setting in Mesh Node */
1698 memcpy(sdata
->vif
.bss_conf
.mcast_rate
, setup
->mcast_rate
,
1699 sizeof(setup
->mcast_rate
));
1700 sdata
->vif
.bss_conf
.basic_rates
= setup
->basic_rates
;
1702 sdata
->vif
.bss_conf
.beacon_int
= setup
->beacon_interval
;
1703 sdata
->vif
.bss_conf
.dtim_period
= setup
->dtim_period
;
1708 static int ieee80211_update_mesh_config(struct wiphy
*wiphy
,
1709 struct net_device
*dev
, u32 mask
,
1710 const struct mesh_config
*nconf
)
1712 struct mesh_config
*conf
;
1713 struct ieee80211_sub_if_data
*sdata
;
1714 struct ieee80211_if_mesh
*ifmsh
;
1716 sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1717 ifmsh
= &sdata
->u
.mesh
;
1719 /* Set the config options which we are interested in setting */
1720 conf
= &(sdata
->u
.mesh
.mshcfg
);
1721 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT
, mask
))
1722 conf
->dot11MeshRetryTimeout
= nconf
->dot11MeshRetryTimeout
;
1723 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT
, mask
))
1724 conf
->dot11MeshConfirmTimeout
= nconf
->dot11MeshConfirmTimeout
;
1725 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT
, mask
))
1726 conf
->dot11MeshHoldingTimeout
= nconf
->dot11MeshHoldingTimeout
;
1727 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS
, mask
))
1728 conf
->dot11MeshMaxPeerLinks
= nconf
->dot11MeshMaxPeerLinks
;
1729 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES
, mask
))
1730 conf
->dot11MeshMaxRetries
= nconf
->dot11MeshMaxRetries
;
1731 if (_chg_mesh_attr(NL80211_MESHCONF_TTL
, mask
))
1732 conf
->dot11MeshTTL
= nconf
->dot11MeshTTL
;
1733 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL
, mask
))
1734 conf
->element_ttl
= nconf
->element_ttl
;
1735 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS
, mask
)) {
1736 if (ifmsh
->user_mpm
)
1738 conf
->auto_open_plinks
= nconf
->auto_open_plinks
;
1740 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR
, mask
))
1741 conf
->dot11MeshNbrOffsetMaxNeighbor
=
1742 nconf
->dot11MeshNbrOffsetMaxNeighbor
;
1743 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES
, mask
))
1744 conf
->dot11MeshHWMPmaxPREQretries
=
1745 nconf
->dot11MeshHWMPmaxPREQretries
;
1746 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME
, mask
))
1747 conf
->path_refresh_time
= nconf
->path_refresh_time
;
1748 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT
, mask
))
1749 conf
->min_discovery_timeout
= nconf
->min_discovery_timeout
;
1750 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT
, mask
))
1751 conf
->dot11MeshHWMPactivePathTimeout
=
1752 nconf
->dot11MeshHWMPactivePathTimeout
;
1753 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL
, mask
))
1754 conf
->dot11MeshHWMPpreqMinInterval
=
1755 nconf
->dot11MeshHWMPpreqMinInterval
;
1756 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL
, mask
))
1757 conf
->dot11MeshHWMPperrMinInterval
=
1758 nconf
->dot11MeshHWMPperrMinInterval
;
1759 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME
,
1761 conf
->dot11MeshHWMPnetDiameterTraversalTime
=
1762 nconf
->dot11MeshHWMPnetDiameterTraversalTime
;
1763 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE
, mask
)) {
1764 conf
->dot11MeshHWMPRootMode
= nconf
->dot11MeshHWMPRootMode
;
1765 ieee80211_mesh_root_setup(ifmsh
);
1767 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS
, mask
)) {
1768 /* our current gate announcement implementation rides on root
1769 * announcements, so require this ifmsh to also be a root node
1771 if (nconf
->dot11MeshGateAnnouncementProtocol
&&
1772 !(conf
->dot11MeshHWMPRootMode
> IEEE80211_ROOTMODE_ROOT
)) {
1773 conf
->dot11MeshHWMPRootMode
= IEEE80211_PROACTIVE_RANN
;
1774 ieee80211_mesh_root_setup(ifmsh
);
1776 conf
->dot11MeshGateAnnouncementProtocol
=
1777 nconf
->dot11MeshGateAnnouncementProtocol
;
1779 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL
, mask
))
1780 conf
->dot11MeshHWMPRannInterval
=
1781 nconf
->dot11MeshHWMPRannInterval
;
1782 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING
, mask
))
1783 conf
->dot11MeshForwarding
= nconf
->dot11MeshForwarding
;
1784 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD
, mask
)) {
1785 /* our RSSI threshold implementation is supported only for
1786 * devices that report signal in dBm.
1788 if (!ieee80211_hw_check(&sdata
->local
->hw
, SIGNAL_DBM
))
1790 conf
->rssi_threshold
= nconf
->rssi_threshold
;
1792 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE
, mask
)) {
1793 conf
->ht_opmode
= nconf
->ht_opmode
;
1794 sdata
->vif
.bss_conf
.ht_operation_mode
= nconf
->ht_opmode
;
1795 ieee80211_bss_info_change_notify(sdata
, BSS_CHANGED_HT
);
1797 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT
, mask
))
1798 conf
->dot11MeshHWMPactivePathToRootTimeout
=
1799 nconf
->dot11MeshHWMPactivePathToRootTimeout
;
1800 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL
, mask
))
1801 conf
->dot11MeshHWMProotInterval
=
1802 nconf
->dot11MeshHWMProotInterval
;
1803 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL
, mask
))
1804 conf
->dot11MeshHWMPconfirmationInterval
=
1805 nconf
->dot11MeshHWMPconfirmationInterval
;
1806 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE
, mask
)) {
1807 conf
->power_mode
= nconf
->power_mode
;
1808 ieee80211_mps_local_status_update(sdata
);
1810 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW
, mask
))
1811 conf
->dot11MeshAwakeWindowDuration
=
1812 nconf
->dot11MeshAwakeWindowDuration
;
1813 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT
, mask
))
1814 conf
->plink_timeout
= nconf
->plink_timeout
;
1815 ieee80211_mbss_info_change_notify(sdata
, BSS_CHANGED_BEACON
);
1819 static int ieee80211_join_mesh(struct wiphy
*wiphy
, struct net_device
*dev
,
1820 const struct mesh_config
*conf
,
1821 const struct mesh_setup
*setup
)
1823 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1824 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
1827 memcpy(&ifmsh
->mshcfg
, conf
, sizeof(struct mesh_config
));
1828 err
= copy_mesh_setup(ifmsh
, setup
);
1832 /* can mesh use other SMPS modes? */
1833 sdata
->smps_mode
= IEEE80211_SMPS_OFF
;
1834 sdata
->needed_rx_chains
= sdata
->local
->rx_chains
;
1836 mutex_lock(&sdata
->local
->mtx
);
1837 err
= ieee80211_vif_use_channel(sdata
, &setup
->chandef
,
1838 IEEE80211_CHANCTX_SHARED
);
1839 mutex_unlock(&sdata
->local
->mtx
);
1843 return ieee80211_start_mesh(sdata
);
1846 static int ieee80211_leave_mesh(struct wiphy
*wiphy
, struct net_device
*dev
)
1848 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1850 ieee80211_stop_mesh(sdata
);
1851 mutex_lock(&sdata
->local
->mtx
);
1852 ieee80211_vif_release_channel(sdata
);
1853 mutex_unlock(&sdata
->local
->mtx
);
1859 static int ieee80211_change_bss(struct wiphy
*wiphy
,
1860 struct net_device
*dev
,
1861 struct bss_parameters
*params
)
1863 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1864 enum ieee80211_band band
;
1867 if (!sdata_dereference(sdata
->u
.ap
.beacon
, sdata
))
1870 band
= ieee80211_get_sdata_band(sdata
);
1872 if (params
->use_cts_prot
>= 0) {
1873 sdata
->vif
.bss_conf
.use_cts_prot
= params
->use_cts_prot
;
1874 changed
|= BSS_CHANGED_ERP_CTS_PROT
;
1876 if (params
->use_short_preamble
>= 0) {
1877 sdata
->vif
.bss_conf
.use_short_preamble
=
1878 params
->use_short_preamble
;
1879 changed
|= BSS_CHANGED_ERP_PREAMBLE
;
1882 if (!sdata
->vif
.bss_conf
.use_short_slot
&&
1883 band
== IEEE80211_BAND_5GHZ
) {
1884 sdata
->vif
.bss_conf
.use_short_slot
= true;
1885 changed
|= BSS_CHANGED_ERP_SLOT
;
1888 if (params
->use_short_slot_time
>= 0) {
1889 sdata
->vif
.bss_conf
.use_short_slot
=
1890 params
->use_short_slot_time
;
1891 changed
|= BSS_CHANGED_ERP_SLOT
;
1894 if (params
->basic_rates
) {
1895 ieee80211_parse_bitrates(&sdata
->vif
.bss_conf
.chandef
,
1897 params
->basic_rates
,
1898 params
->basic_rates_len
,
1899 &sdata
->vif
.bss_conf
.basic_rates
);
1900 changed
|= BSS_CHANGED_BASIC_RATES
;
1903 if (params
->ap_isolate
>= 0) {
1904 if (params
->ap_isolate
)
1905 sdata
->flags
|= IEEE80211_SDATA_DONT_BRIDGE_PACKETS
;
1907 sdata
->flags
&= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS
;
1910 if (params
->ht_opmode
>= 0) {
1911 sdata
->vif
.bss_conf
.ht_operation_mode
=
1912 (u16
) params
->ht_opmode
;
1913 changed
|= BSS_CHANGED_HT
;
1916 if (params
->p2p_ctwindow
>= 0) {
1917 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
&=
1918 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK
;
1919 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
|=
1920 params
->p2p_ctwindow
& IEEE80211_P2P_OPPPS_CTWINDOW_MASK
;
1921 changed
|= BSS_CHANGED_P2P_PS
;
1924 if (params
->p2p_opp_ps
> 0) {
1925 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
|=
1926 IEEE80211_P2P_OPPPS_ENABLE_BIT
;
1927 changed
|= BSS_CHANGED_P2P_PS
;
1928 } else if (params
->p2p_opp_ps
== 0) {
1929 sdata
->vif
.bss_conf
.p2p_noa_attr
.oppps_ctwindow
&=
1930 ~IEEE80211_P2P_OPPPS_ENABLE_BIT
;
1931 changed
|= BSS_CHANGED_P2P_PS
;
1934 ieee80211_bss_info_change_notify(sdata
, changed
);
1939 static int ieee80211_set_txq_params(struct wiphy
*wiphy
,
1940 struct net_device
*dev
,
1941 struct ieee80211_txq_params
*params
)
1943 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
1944 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
1945 struct ieee80211_tx_queue_params p
;
1947 if (!local
->ops
->conf_tx
)
1950 if (local
->hw
.queues
< IEEE80211_NUM_ACS
)
1953 memset(&p
, 0, sizeof(p
));
1954 p
.aifs
= params
->aifs
;
1955 p
.cw_max
= params
->cwmax
;
1956 p
.cw_min
= params
->cwmin
;
1957 p
.txop
= params
->txop
;
1960 * Setting tx queue params disables u-apsd because it's only
1961 * called in master mode.
1965 sdata
->tx_conf
[params
->ac
] = p
;
1966 if (drv_conf_tx(local
, sdata
, params
->ac
, &p
)) {
1967 wiphy_debug(local
->hw
.wiphy
,
1968 "failed to set TX queue parameters for AC %d\n",
1973 ieee80211_bss_info_change_notify(sdata
, BSS_CHANGED_QOS
);
1979 static int ieee80211_suspend(struct wiphy
*wiphy
,
1980 struct cfg80211_wowlan
*wowlan
)
1982 return __ieee80211_suspend(wiphy_priv(wiphy
), wowlan
);
1985 static int ieee80211_resume(struct wiphy
*wiphy
)
1987 return __ieee80211_resume(wiphy_priv(wiphy
));
1990 #define ieee80211_suspend NULL
1991 #define ieee80211_resume NULL
1994 static int ieee80211_scan(struct wiphy
*wiphy
,
1995 struct cfg80211_scan_request
*req
)
1997 struct ieee80211_sub_if_data
*sdata
;
1999 sdata
= IEEE80211_WDEV_TO_SUB_IF(req
->wdev
);
2001 switch (ieee80211_vif_type_p2p(&sdata
->vif
)) {
2002 case NL80211_IFTYPE_STATION
:
2003 case NL80211_IFTYPE_ADHOC
:
2004 case NL80211_IFTYPE_MESH_POINT
:
2005 case NL80211_IFTYPE_P2P_CLIENT
:
2006 case NL80211_IFTYPE_P2P_DEVICE
:
2008 case NL80211_IFTYPE_P2P_GO
:
2009 if (sdata
->local
->ops
->hw_scan
)
2012 * FIXME: implement NoA while scanning in software,
2013 * for now fall through to allow scanning only when
2014 * beaconing hasn't been configured yet
2016 case NL80211_IFTYPE_AP
:
2018 * If the scan has been forced (and the driver supports
2019 * forcing), don't care about being beaconing already.
2020 * This will create problems to the attached stations (e.g. all
2021 * the frames sent while scanning on other channel will be
2024 if (sdata
->u
.ap
.beacon
&&
2025 (!(wiphy
->features
& NL80211_FEATURE_AP_SCAN
) ||
2026 !(req
->flags
& NL80211_SCAN_FLAG_AP
)))
2033 return ieee80211_request_scan(sdata
, req
);
2037 ieee80211_sched_scan_start(struct wiphy
*wiphy
,
2038 struct net_device
*dev
,
2039 struct cfg80211_sched_scan_request
*req
)
2041 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2043 if (!sdata
->local
->ops
->sched_scan_start
)
2046 return ieee80211_request_sched_scan_start(sdata
, req
);
2050 ieee80211_sched_scan_stop(struct wiphy
*wiphy
, struct net_device
*dev
)
2052 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2054 if (!sdata
->local
->ops
->sched_scan_stop
)
2057 return ieee80211_request_sched_scan_stop(sdata
);
2060 static int ieee80211_auth(struct wiphy
*wiphy
, struct net_device
*dev
,
2061 struct cfg80211_auth_request
*req
)
2063 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2066 static int ieee80211_assoc(struct wiphy
*wiphy
, struct net_device
*dev
,
2067 struct cfg80211_assoc_request
*req
)
2069 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2072 static int ieee80211_deauth(struct wiphy
*wiphy
, struct net_device
*dev
,
2073 struct cfg80211_deauth_request
*req
)
2075 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2078 static int ieee80211_disassoc(struct wiphy
*wiphy
, struct net_device
*dev
,
2079 struct cfg80211_disassoc_request
*req
)
2081 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev
), req
);
2084 static int ieee80211_join_ibss(struct wiphy
*wiphy
, struct net_device
*dev
,
2085 struct cfg80211_ibss_params
*params
)
2087 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev
), params
);
2090 static int ieee80211_leave_ibss(struct wiphy
*wiphy
, struct net_device
*dev
)
2092 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev
));
2095 static int ieee80211_join_ocb(struct wiphy
*wiphy
, struct net_device
*dev
,
2096 struct ocb_setup
*setup
)
2098 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev
), setup
);
2101 static int ieee80211_leave_ocb(struct wiphy
*wiphy
, struct net_device
*dev
)
2103 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev
));
2106 static int ieee80211_set_mcast_rate(struct wiphy
*wiphy
, struct net_device
*dev
,
2107 int rate
[IEEE80211_NUM_BANDS
])
2109 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2111 memcpy(sdata
->vif
.bss_conf
.mcast_rate
, rate
,
2112 sizeof(int) * IEEE80211_NUM_BANDS
);
2117 static int ieee80211_set_wiphy_params(struct wiphy
*wiphy
, u32 changed
)
2119 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2122 if (changed
& WIPHY_PARAM_FRAG_THRESHOLD
) {
2123 ieee80211_check_fast_xmit_all(local
);
2125 err
= drv_set_frag_threshold(local
, wiphy
->frag_threshold
);
2128 ieee80211_check_fast_xmit_all(local
);
2133 if ((changed
& WIPHY_PARAM_COVERAGE_CLASS
) ||
2134 (changed
& WIPHY_PARAM_DYN_ACK
)) {
2137 coverage_class
= changed
& WIPHY_PARAM_COVERAGE_CLASS
?
2138 wiphy
->coverage_class
: -1;
2139 err
= drv_set_coverage_class(local
, coverage_class
);
2145 if (changed
& WIPHY_PARAM_RTS_THRESHOLD
) {
2146 err
= drv_set_rts_threshold(local
, wiphy
->rts_threshold
);
2152 if (changed
& WIPHY_PARAM_RETRY_SHORT
) {
2153 if (wiphy
->retry_short
> IEEE80211_MAX_TX_RETRY
)
2155 local
->hw
.conf
.short_frame_max_tx_count
= wiphy
->retry_short
;
2157 if (changed
& WIPHY_PARAM_RETRY_LONG
) {
2158 if (wiphy
->retry_long
> IEEE80211_MAX_TX_RETRY
)
2160 local
->hw
.conf
.long_frame_max_tx_count
= wiphy
->retry_long
;
2163 (WIPHY_PARAM_RETRY_SHORT
| WIPHY_PARAM_RETRY_LONG
))
2164 ieee80211_hw_config(local
, IEEE80211_CONF_CHANGE_RETRY_LIMITS
);
2169 static int ieee80211_set_tx_power(struct wiphy
*wiphy
,
2170 struct wireless_dev
*wdev
,
2171 enum nl80211_tx_power_setting type
, int mbm
)
2173 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2174 struct ieee80211_sub_if_data
*sdata
;
2175 enum nl80211_tx_power_setting txp_type
= type
;
2176 bool update_txp_type
= false;
2179 sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2182 case NL80211_TX_POWER_AUTOMATIC
:
2183 sdata
->user_power_level
= IEEE80211_UNSET_POWER_LEVEL
;
2184 txp_type
= NL80211_TX_POWER_LIMITED
;
2186 case NL80211_TX_POWER_LIMITED
:
2187 case NL80211_TX_POWER_FIXED
:
2188 if (mbm
< 0 || (mbm
% 100))
2190 sdata
->user_power_level
= MBM_TO_DBM(mbm
);
2194 if (txp_type
!= sdata
->vif
.bss_conf
.txpower_type
) {
2195 update_txp_type
= true;
2196 sdata
->vif
.bss_conf
.txpower_type
= txp_type
;
2199 ieee80211_recalc_txpower(sdata
, update_txp_type
);
2205 case NL80211_TX_POWER_AUTOMATIC
:
2206 local
->user_power_level
= IEEE80211_UNSET_POWER_LEVEL
;
2207 txp_type
= NL80211_TX_POWER_LIMITED
;
2209 case NL80211_TX_POWER_LIMITED
:
2210 case NL80211_TX_POWER_FIXED
:
2211 if (mbm
< 0 || (mbm
% 100))
2213 local
->user_power_level
= MBM_TO_DBM(mbm
);
2217 mutex_lock(&local
->iflist_mtx
);
2218 list_for_each_entry(sdata
, &local
->interfaces
, list
) {
2219 sdata
->user_power_level
= local
->user_power_level
;
2220 if (txp_type
!= sdata
->vif
.bss_conf
.txpower_type
)
2221 update_txp_type
= true;
2222 sdata
->vif
.bss_conf
.txpower_type
= txp_type
;
2224 list_for_each_entry(sdata
, &local
->interfaces
, list
)
2225 ieee80211_recalc_txpower(sdata
, update_txp_type
);
2226 mutex_unlock(&local
->iflist_mtx
);
2231 static int ieee80211_get_tx_power(struct wiphy
*wiphy
,
2232 struct wireless_dev
*wdev
,
2235 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2236 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2238 if (local
->ops
->get_txpower
)
2239 return drv_get_txpower(local
, sdata
, dbm
);
2241 if (!local
->use_chanctx
)
2242 *dbm
= local
->hw
.conf
.power_level
;
2244 *dbm
= sdata
->vif
.bss_conf
.txpower
;
2249 static int ieee80211_set_wds_peer(struct wiphy
*wiphy
, struct net_device
*dev
,
2252 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2254 memcpy(&sdata
->u
.wds
.remote_addr
, addr
, ETH_ALEN
);
2259 static void ieee80211_rfkill_poll(struct wiphy
*wiphy
)
2261 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2263 drv_rfkill_poll(local
);
2266 #ifdef CONFIG_NL80211_TESTMODE
2267 static int ieee80211_testmode_cmd(struct wiphy
*wiphy
,
2268 struct wireless_dev
*wdev
,
2269 void *data
, int len
)
2271 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2272 struct ieee80211_vif
*vif
= NULL
;
2274 if (!local
->ops
->testmode_cmd
)
2278 struct ieee80211_sub_if_data
*sdata
;
2280 sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2281 if (sdata
->flags
& IEEE80211_SDATA_IN_DRIVER
)
2285 return local
->ops
->testmode_cmd(&local
->hw
, vif
, data
, len
);
2288 static int ieee80211_testmode_dump(struct wiphy
*wiphy
,
2289 struct sk_buff
*skb
,
2290 struct netlink_callback
*cb
,
2291 void *data
, int len
)
2293 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
2295 if (!local
->ops
->testmode_dump
)
2298 return local
->ops
->testmode_dump(&local
->hw
, skb
, cb
, data
, len
);
2302 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data
*sdata
,
2303 enum ieee80211_smps_mode smps_mode
)
2305 struct sta_info
*sta
;
2306 enum ieee80211_smps_mode old_req
;
2308 if (WARN_ON_ONCE(sdata
->vif
.type
!= NL80211_IFTYPE_AP
))
2311 if (sdata
->vif
.bss_conf
.chandef
.width
== NL80211_CHAN_WIDTH_20_NOHT
)
2314 old_req
= sdata
->u
.ap
.req_smps
;
2315 sdata
->u
.ap
.req_smps
= smps_mode
;
2317 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2318 if (old_req
== smps_mode
||
2319 smps_mode
== IEEE80211_SMPS_AUTOMATIC
)
2322 /* If no associated stations, there's no need to do anything */
2323 if (!atomic_read(&sdata
->u
.ap
.num_mcast_sta
)) {
2324 sdata
->smps_mode
= smps_mode
;
2325 ieee80211_queue_work(&sdata
->local
->hw
, &sdata
->recalc_smps
);
2330 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
2331 smps_mode
, atomic_read(&sdata
->u
.ap
.num_mcast_sta
));
2333 mutex_lock(&sdata
->local
->sta_mtx
);
2334 list_for_each_entry(sta
, &sdata
->local
->sta_list
, list
) {
2336 * Only stations associated to our AP and
2339 if (sta
->sdata
->bss
!= &sdata
->u
.ap
)
2342 /* This station doesn't support MIMO - skip it */
2343 if (sta_info_tx_streams(sta
) == 1)
2347 * Don't wake up a STA just to send the action frame
2348 * unless we are getting more restrictive.
2350 if (test_sta_flag(sta
, WLAN_STA_PS_STA
) &&
2351 !ieee80211_smps_is_restrictive(sta
->known_smps_mode
,
2353 ht_dbg(sdata
, "Won't send SMPS to sleeping STA %pM\n",
2359 * If the STA is not authorized, wait until it gets
2360 * authorized and the action frame will be sent then.
2362 if (!test_sta_flag(sta
, WLAN_STA_AUTHORIZED
))
2365 ht_dbg(sdata
, "Sending SMPS to %pM\n", sta
->sta
.addr
);
2366 ieee80211_send_smps_action(sdata
, smps_mode
, sta
->sta
.addr
,
2367 sdata
->vif
.bss_conf
.bssid
);
2369 mutex_unlock(&sdata
->local
->sta_mtx
);
2371 sdata
->smps_mode
= smps_mode
;
2372 ieee80211_queue_work(&sdata
->local
->hw
, &sdata
->recalc_smps
);
2377 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data
*sdata
,
2378 enum ieee80211_smps_mode smps_mode
)
2381 enum ieee80211_smps_mode old_req
;
2383 struct sta_info
*sta
;
2384 bool tdls_peer_found
= false;
2386 lockdep_assert_held(&sdata
->wdev
.mtx
);
2388 if (WARN_ON_ONCE(sdata
->vif
.type
!= NL80211_IFTYPE_STATION
))
2391 old_req
= sdata
->u
.mgd
.req_smps
;
2392 sdata
->u
.mgd
.req_smps
= smps_mode
;
2394 if (old_req
== smps_mode
&&
2395 smps_mode
!= IEEE80211_SMPS_AUTOMATIC
)
2399 * If not associated, or current association is not an HT
2400 * association, there's no need to do anything, just store
2401 * the new value until we associate.
2403 if (!sdata
->u
.mgd
.associated
||
2404 sdata
->vif
.bss_conf
.chandef
.width
== NL80211_CHAN_WIDTH_20_NOHT
)
2407 ap
= sdata
->u
.mgd
.associated
->bssid
;
2410 list_for_each_entry_rcu(sta
, &sdata
->local
->sta_list
, list
) {
2411 if (!sta
->sta
.tdls
|| sta
->sdata
!= sdata
|| !sta
->uploaded
||
2412 !test_sta_flag(sta
, WLAN_STA_AUTHORIZED
))
2415 tdls_peer_found
= true;
2420 if (smps_mode
== IEEE80211_SMPS_AUTOMATIC
) {
2421 if (tdls_peer_found
|| !sdata
->u
.mgd
.powersave
)
2422 smps_mode
= IEEE80211_SMPS_OFF
;
2424 smps_mode
= IEEE80211_SMPS_DYNAMIC
;
2427 /* send SM PS frame to AP */
2428 err
= ieee80211_send_smps_action(sdata
, smps_mode
,
2431 sdata
->u
.mgd
.req_smps
= old_req
;
2432 else if (smps_mode
!= IEEE80211_SMPS_OFF
&& tdls_peer_found
)
2433 ieee80211_teardown_tdls_peers(sdata
);
2438 static int ieee80211_set_power_mgmt(struct wiphy
*wiphy
, struct net_device
*dev
,
2439 bool enabled
, int timeout
)
2441 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2442 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
2444 if (sdata
->vif
.type
!= NL80211_IFTYPE_STATION
)
2447 if (!ieee80211_hw_check(&local
->hw
, SUPPORTS_PS
))
2450 if (enabled
== sdata
->u
.mgd
.powersave
&&
2451 timeout
== local
->dynamic_ps_forced_timeout
)
2454 sdata
->u
.mgd
.powersave
= enabled
;
2455 local
->dynamic_ps_forced_timeout
= timeout
;
2457 /* no change, but if automatic follow powersave */
2459 __ieee80211_request_smps_mgd(sdata
, sdata
->u
.mgd
.req_smps
);
2460 sdata_unlock(sdata
);
2462 if (ieee80211_hw_check(&local
->hw
, SUPPORTS_DYNAMIC_PS
))
2463 ieee80211_hw_config(local
, IEEE80211_CONF_CHANGE_PS
);
2465 ieee80211_recalc_ps(local
, -1);
2466 ieee80211_recalc_ps_vif(sdata
);
2471 static int ieee80211_set_cqm_rssi_config(struct wiphy
*wiphy
,
2472 struct net_device
*dev
,
2473 s32 rssi_thold
, u32 rssi_hyst
)
2475 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2476 struct ieee80211_vif
*vif
= &sdata
->vif
;
2477 struct ieee80211_bss_conf
*bss_conf
= &vif
->bss_conf
;
2479 if (rssi_thold
== bss_conf
->cqm_rssi_thold
&&
2480 rssi_hyst
== bss_conf
->cqm_rssi_hyst
)
2483 if (sdata
->vif
.driver_flags
& IEEE80211_VIF_BEACON_FILTER
&&
2484 !(sdata
->vif
.driver_flags
& IEEE80211_VIF_SUPPORTS_CQM_RSSI
))
2487 bss_conf
->cqm_rssi_thold
= rssi_thold
;
2488 bss_conf
->cqm_rssi_hyst
= rssi_hyst
;
2489 sdata
->u
.mgd
.last_cqm_event_signal
= 0;
2491 /* tell the driver upon association, unless already associated */
2492 if (sdata
->u
.mgd
.associated
&&
2493 sdata
->vif
.driver_flags
& IEEE80211_VIF_SUPPORTS_CQM_RSSI
)
2494 ieee80211_bss_info_change_notify(sdata
, BSS_CHANGED_CQM
);
2499 static int ieee80211_set_bitrate_mask(struct wiphy
*wiphy
,
2500 struct net_device
*dev
,
2502 const struct cfg80211_bitrate_mask
*mask
)
2504 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2505 struct ieee80211_local
*local
= wdev_priv(dev
->ieee80211_ptr
);
2508 if (!ieee80211_sdata_running(sdata
))
2511 if (ieee80211_hw_check(&local
->hw
, HAS_RATE_CONTROL
)) {
2512 ret
= drv_set_bitrate_mask(local
, sdata
, mask
);
2517 for (i
= 0; i
< IEEE80211_NUM_BANDS
; i
++) {
2518 struct ieee80211_supported_band
*sband
= wiphy
->bands
[i
];
2521 sdata
->rc_rateidx_mask
[i
] = mask
->control
[i
].legacy
;
2522 memcpy(sdata
->rc_rateidx_mcs_mask
[i
], mask
->control
[i
].ht_mcs
,
2523 sizeof(mask
->control
[i
].ht_mcs
));
2524 memcpy(sdata
->rc_rateidx_vht_mcs_mask
[i
],
2525 mask
->control
[i
].vht_mcs
,
2526 sizeof(mask
->control
[i
].vht_mcs
));
2528 sdata
->rc_has_mcs_mask
[i
] = false;
2529 sdata
->rc_has_vht_mcs_mask
[i
] = false;
2533 for (j
= 0; j
< IEEE80211_HT_MCS_MASK_LEN
; j
++) {
2534 if (~sdata
->rc_rateidx_mcs_mask
[i
][j
]) {
2535 sdata
->rc_has_mcs_mask
[i
] = true;
2540 for (j
= 0; j
< NL80211_VHT_NSS_MAX
; j
++) {
2541 if (~sdata
->rc_rateidx_vht_mcs_mask
[i
][j
]) {
2542 sdata
->rc_has_vht_mcs_mask
[i
] = true;
2551 static bool ieee80211_coalesce_started_roc(struct ieee80211_local
*local
,
2552 struct ieee80211_roc_work
*new_roc
,
2553 struct ieee80211_roc_work
*cur_roc
)
2555 unsigned long now
= jiffies
;
2556 unsigned long remaining
= cur_roc
->hw_start_time
+
2557 msecs_to_jiffies(cur_roc
->duration
) -
2560 if (WARN_ON(!cur_roc
->started
|| !cur_roc
->hw_begun
))
2563 /* if it doesn't fit entirely, schedule a new one */
2564 if (new_roc
->duration
> jiffies_to_msecs(remaining
))
2567 ieee80211_handle_roc_started(new_roc
);
2569 /* add to dependents so we send the expired event properly */
2570 list_add_tail(&new_roc
->list
, &cur_roc
->dependents
);
2574 static u64
ieee80211_mgmt_tx_cookie(struct ieee80211_local
*local
)
2576 lockdep_assert_held(&local
->mtx
);
2578 local
->roc_cookie_counter
++;
2580 /* wow, you wrapped 64 bits ... more likely a bug */
2581 if (WARN_ON(local
->roc_cookie_counter
== 0))
2582 local
->roc_cookie_counter
++;
2584 return local
->roc_cookie_counter
;
2587 static int ieee80211_start_roc_work(struct ieee80211_local
*local
,
2588 struct ieee80211_sub_if_data
*sdata
,
2589 struct ieee80211_channel
*channel
,
2590 unsigned int duration
, u64
*cookie
,
2591 struct sk_buff
*txskb
,
2592 enum ieee80211_roc_type type
)
2594 struct ieee80211_roc_work
*roc
, *tmp
;
2595 bool queued
= false;
2598 lockdep_assert_held(&local
->mtx
);
2600 if (local
->use_chanctx
&& !local
->ops
->remain_on_channel
)
2603 roc
= kzalloc(sizeof(*roc
), GFP_KERNEL
);
2608 * If the duration is zero, then the driver
2609 * wouldn't actually do anything. Set it to
2612 * TODO: cancel the off-channel operation
2613 * when we get the SKB's TX status and
2614 * the wait time was zero before.
2619 roc
->chan
= channel
;
2620 roc
->duration
= duration
;
2621 roc
->req_duration
= duration
;
2625 INIT_DELAYED_WORK(&roc
->work
, ieee80211_sw_roc_work
);
2626 INIT_LIST_HEAD(&roc
->dependents
);
2629 * cookie is either the roc cookie (for normal roc)
2630 * or the SKB (for mgmt TX)
2633 roc
->cookie
= ieee80211_mgmt_tx_cookie(local
);
2634 *cookie
= roc
->cookie
;
2636 roc
->mgmt_tx_cookie
= *cookie
;
2639 /* if there's one pending or we're scanning, queue this one */
2640 if (!list_empty(&local
->roc_list
) ||
2641 local
->scanning
|| ieee80211_is_radar_required(local
))
2642 goto out_check_combine
;
2644 /* if not HW assist, just queue & schedule work */
2645 if (!local
->ops
->remain_on_channel
) {
2646 ieee80211_queue_delayed_work(&local
->hw
, &roc
->work
, 0);
2650 /* otherwise actually kick it off here (for error handling) */
2652 ret
= drv_remain_on_channel(local
, sdata
, channel
, duration
, type
);
2658 roc
->started
= true;
2662 list_for_each_entry(tmp
, &local
->roc_list
, list
) {
2663 if (tmp
->chan
!= channel
|| tmp
->sdata
!= sdata
)
2667 * Extend this ROC if possible:
2669 * If it hasn't started yet, just increase the duration
2670 * and add the new one to the list of dependents.
2671 * If the type of the new ROC has higher priority, modify the
2672 * type of the previous one to match that of the new one.
2674 if (!tmp
->started
) {
2675 list_add_tail(&roc
->list
, &tmp
->dependents
);
2676 tmp
->duration
= max(tmp
->duration
, roc
->duration
);
2677 tmp
->type
= max(tmp
->type
, roc
->type
);
2682 /* If it has already started, it's more difficult ... */
2683 if (local
->ops
->remain_on_channel
) {
2685 * In the offloaded ROC case, if it hasn't begun, add
2686 * this new one to the dependent list to be handled
2687 * when the master one begins. If it has begun,
2688 * check if it fits entirely within the existing one,
2689 * in which case it will just be dependent as well.
2690 * Otherwise, schedule it by itself.
2692 if (!tmp
->hw_begun
) {
2693 list_add_tail(&roc
->list
, &tmp
->dependents
);
2698 if (ieee80211_coalesce_started_roc(local
, roc
, tmp
))
2700 } else if (del_timer_sync(&tmp
->work
.timer
)) {
2701 unsigned long new_end
;
2704 * In the software ROC case, cancel the timer, if
2705 * that fails then the finish work is already
2706 * queued/pending and thus we queue the new ROC
2707 * normally, if that succeeds then we can extend
2708 * the timer duration and TX the frame (if any.)
2711 list_add_tail(&roc
->list
, &tmp
->dependents
);
2714 new_end
= jiffies
+ msecs_to_jiffies(roc
->duration
);
2716 /* ok, it was started & we canceled timer */
2717 if (time_after(new_end
, tmp
->work
.timer
.expires
))
2718 mod_timer(&tmp
->work
.timer
, new_end
);
2720 add_timer(&tmp
->work
.timer
);
2722 ieee80211_handle_roc_started(roc
);
2729 list_add_tail(&roc
->list
, &local
->roc_list
);
2734 static int ieee80211_remain_on_channel(struct wiphy
*wiphy
,
2735 struct wireless_dev
*wdev
,
2736 struct ieee80211_channel
*chan
,
2737 unsigned int duration
,
2740 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2741 struct ieee80211_local
*local
= sdata
->local
;
2744 mutex_lock(&local
->mtx
);
2745 ret
= ieee80211_start_roc_work(local
, sdata
, chan
,
2746 duration
, cookie
, NULL
,
2747 IEEE80211_ROC_TYPE_NORMAL
);
2748 mutex_unlock(&local
->mtx
);
2753 static int ieee80211_cancel_roc(struct ieee80211_local
*local
,
2754 u64 cookie
, bool mgmt_tx
)
2756 struct ieee80211_roc_work
*roc
, *tmp
, *found
= NULL
;
2759 mutex_lock(&local
->mtx
);
2760 list_for_each_entry_safe(roc
, tmp
, &local
->roc_list
, list
) {
2761 struct ieee80211_roc_work
*dep
, *tmp2
;
2763 list_for_each_entry_safe(dep
, tmp2
, &roc
->dependents
, list
) {
2764 if (!mgmt_tx
&& dep
->cookie
!= cookie
)
2766 else if (mgmt_tx
&& dep
->mgmt_tx_cookie
!= cookie
)
2768 /* found dependent item -- just remove it */
2769 list_del(&dep
->list
);
2770 mutex_unlock(&local
->mtx
);
2772 ieee80211_roc_notify_destroy(dep
, true);
2776 if (!mgmt_tx
&& roc
->cookie
!= cookie
)
2778 else if (mgmt_tx
&& roc
->mgmt_tx_cookie
!= cookie
)
2786 mutex_unlock(&local
->mtx
);
2791 * We found the item to cancel, so do that. Note that it
2792 * may have dependents, which we also cancel (and send
2793 * the expired signal for.) Not doing so would be quite
2794 * tricky here, but we may need to fix it later.
2797 if (local
->ops
->remain_on_channel
) {
2798 if (found
->started
) {
2799 ret
= drv_cancel_remain_on_channel(local
);
2800 if (WARN_ON_ONCE(ret
)) {
2801 mutex_unlock(&local
->mtx
);
2806 list_del(&found
->list
);
2809 ieee80211_start_next_roc(local
);
2810 mutex_unlock(&local
->mtx
);
2812 ieee80211_roc_notify_destroy(found
, true);
2814 /* work may be pending so use it all the time */
2815 found
->abort
= true;
2816 ieee80211_queue_delayed_work(&local
->hw
, &found
->work
, 0);
2818 mutex_unlock(&local
->mtx
);
2820 /* work will clean up etc */
2821 flush_delayed_work(&found
->work
);
2822 WARN_ON(!found
->to_be_freed
);
2829 static int ieee80211_cancel_remain_on_channel(struct wiphy
*wiphy
,
2830 struct wireless_dev
*wdev
,
2833 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
2834 struct ieee80211_local
*local
= sdata
->local
;
2836 return ieee80211_cancel_roc(local
, cookie
, false);
2839 static int ieee80211_start_radar_detection(struct wiphy
*wiphy
,
2840 struct net_device
*dev
,
2841 struct cfg80211_chan_def
*chandef
,
2844 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
2845 struct ieee80211_local
*local
= sdata
->local
;
2848 mutex_lock(&local
->mtx
);
2849 if (!list_empty(&local
->roc_list
) || local
->scanning
) {
2854 /* whatever, but channel contexts should not complain about that one */
2855 sdata
->smps_mode
= IEEE80211_SMPS_OFF
;
2856 sdata
->needed_rx_chains
= local
->rx_chains
;
2858 err
= ieee80211_vif_use_channel(sdata
, chandef
,
2859 IEEE80211_CHANCTX_SHARED
);
2863 ieee80211_queue_delayed_work(&sdata
->local
->hw
,
2864 &sdata
->dfs_cac_timer_work
,
2865 msecs_to_jiffies(cac_time_ms
));
2868 mutex_unlock(&local
->mtx
);
2872 static struct cfg80211_beacon_data
*
2873 cfg80211_beacon_dup(struct cfg80211_beacon_data
*beacon
)
2875 struct cfg80211_beacon_data
*new_beacon
;
2879 len
= beacon
->head_len
+ beacon
->tail_len
+ beacon
->beacon_ies_len
+
2880 beacon
->proberesp_ies_len
+ beacon
->assocresp_ies_len
+
2881 beacon
->probe_resp_len
;
2883 new_beacon
= kzalloc(sizeof(*new_beacon
) + len
, GFP_KERNEL
);
2887 pos
= (u8
*)(new_beacon
+ 1);
2888 if (beacon
->head_len
) {
2889 new_beacon
->head_len
= beacon
->head_len
;
2890 new_beacon
->head
= pos
;
2891 memcpy(pos
, beacon
->head
, beacon
->head_len
);
2892 pos
+= beacon
->head_len
;
2894 if (beacon
->tail_len
) {
2895 new_beacon
->tail_len
= beacon
->tail_len
;
2896 new_beacon
->tail
= pos
;
2897 memcpy(pos
, beacon
->tail
, beacon
->tail_len
);
2898 pos
+= beacon
->tail_len
;
2900 if (beacon
->beacon_ies_len
) {
2901 new_beacon
->beacon_ies_len
= beacon
->beacon_ies_len
;
2902 new_beacon
->beacon_ies
= pos
;
2903 memcpy(pos
, beacon
->beacon_ies
, beacon
->beacon_ies_len
);
2904 pos
+= beacon
->beacon_ies_len
;
2906 if (beacon
->proberesp_ies_len
) {
2907 new_beacon
->proberesp_ies_len
= beacon
->proberesp_ies_len
;
2908 new_beacon
->proberesp_ies
= pos
;
2909 memcpy(pos
, beacon
->proberesp_ies
, beacon
->proberesp_ies_len
);
2910 pos
+= beacon
->proberesp_ies_len
;
2912 if (beacon
->assocresp_ies_len
) {
2913 new_beacon
->assocresp_ies_len
= beacon
->assocresp_ies_len
;
2914 new_beacon
->assocresp_ies
= pos
;
2915 memcpy(pos
, beacon
->assocresp_ies
, beacon
->assocresp_ies_len
);
2916 pos
+= beacon
->assocresp_ies_len
;
2918 if (beacon
->probe_resp_len
) {
2919 new_beacon
->probe_resp_len
= beacon
->probe_resp_len
;
2920 beacon
->probe_resp
= pos
;
2921 memcpy(pos
, beacon
->probe_resp
, beacon
->probe_resp_len
);
2922 pos
+= beacon
->probe_resp_len
;
2928 void ieee80211_csa_finish(struct ieee80211_vif
*vif
)
2930 struct ieee80211_sub_if_data
*sdata
= vif_to_sdata(vif
);
2932 ieee80211_queue_work(&sdata
->local
->hw
,
2933 &sdata
->csa_finalize_work
);
2935 EXPORT_SYMBOL(ieee80211_csa_finish
);
2937 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
2942 switch (sdata
->vif
.type
) {
2943 case NL80211_IFTYPE_AP
:
2944 err
= ieee80211_assign_beacon(sdata
, sdata
->u
.ap
.next_beacon
,
2946 kfree(sdata
->u
.ap
.next_beacon
);
2947 sdata
->u
.ap
.next_beacon
= NULL
;
2953 case NL80211_IFTYPE_ADHOC
:
2954 err
= ieee80211_ibss_finish_csa(sdata
);
2959 #ifdef CONFIG_MAC80211_MESH
2960 case NL80211_IFTYPE_MESH_POINT
:
2961 err
= ieee80211_mesh_finish_csa(sdata
);
2975 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data
*sdata
)
2977 struct ieee80211_local
*local
= sdata
->local
;
2981 sdata_assert_lock(sdata
);
2982 lockdep_assert_held(&local
->mtx
);
2983 lockdep_assert_held(&local
->chanctx_mtx
);
2986 * using reservation isn't immediate as it may be deferred until later
2987 * with multi-vif. once reservation is complete it will re-schedule the
2988 * work with no reserved_chanctx so verify chandef to check if it
2989 * completed successfully
2992 if (sdata
->reserved_chanctx
) {
2994 * with multi-vif csa driver may call ieee80211_csa_finish()
2995 * many times while waiting for other interfaces to use their
2998 if (sdata
->reserved_ready
)
3001 return ieee80211_vif_use_reserved_context(sdata
);
3004 if (!cfg80211_chandef_identical(&sdata
->vif
.bss_conf
.chandef
,
3005 &sdata
->csa_chandef
))
3008 sdata
->vif
.csa_active
= false;
3010 err
= ieee80211_set_after_csa_beacon(sdata
, &changed
);
3014 ieee80211_bss_info_change_notify(sdata
, changed
);
3016 if (sdata
->csa_block_tx
) {
3017 ieee80211_wake_vif_queues(local
, sdata
,
3018 IEEE80211_QUEUE_STOP_REASON_CSA
);
3019 sdata
->csa_block_tx
= false;
3022 err
= drv_post_channel_switch(sdata
);
3026 cfg80211_ch_switch_notify(sdata
->dev
, &sdata
->csa_chandef
);
3031 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data
*sdata
)
3033 if (__ieee80211_csa_finalize(sdata
)) {
3034 sdata_info(sdata
, "failed to finalize CSA, disconnecting\n");
3035 cfg80211_stop_iface(sdata
->local
->hw
.wiphy
, &sdata
->wdev
,
3040 void ieee80211_csa_finalize_work(struct work_struct
*work
)
3042 struct ieee80211_sub_if_data
*sdata
=
3043 container_of(work
, struct ieee80211_sub_if_data
,
3045 struct ieee80211_local
*local
= sdata
->local
;
3048 mutex_lock(&local
->mtx
);
3049 mutex_lock(&local
->chanctx_mtx
);
3051 /* AP might have been stopped while waiting for the lock. */
3052 if (!sdata
->vif
.csa_active
)
3055 if (!ieee80211_sdata_running(sdata
))
3058 ieee80211_csa_finalize(sdata
);
3061 mutex_unlock(&local
->chanctx_mtx
);
3062 mutex_unlock(&local
->mtx
);
3063 sdata_unlock(sdata
);
3066 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data
*sdata
,
3067 struct cfg80211_csa_settings
*params
,
3070 struct ieee80211_csa_settings csa
= {};
3073 switch (sdata
->vif
.type
) {
3074 case NL80211_IFTYPE_AP
:
3075 sdata
->u
.ap
.next_beacon
=
3076 cfg80211_beacon_dup(¶ms
->beacon_after
);
3077 if (!sdata
->u
.ap
.next_beacon
)
3081 * With a count of 0, we don't have to wait for any
3082 * TBTT before switching, so complete the CSA
3083 * immediately. In theory, with a count == 1 we
3084 * should delay the switch until just before the next
3085 * TBTT, but that would complicate things so we switch
3086 * immediately too. If we would delay the switch
3087 * until the next TBTT, we would have to set the probe
3090 * TODO: A channel switch with count <= 1 without
3091 * sending a CSA action frame is kind of useless,
3092 * because the clients won't know we're changing
3093 * channels. The action frame must be implemented
3094 * either here or in the userspace.
3096 if (params
->count
<= 1)
3099 if ((params
->n_counter_offsets_beacon
>
3100 IEEE80211_MAX_CSA_COUNTERS_NUM
) ||
3101 (params
->n_counter_offsets_presp
>
3102 IEEE80211_MAX_CSA_COUNTERS_NUM
))
3105 csa
.counter_offsets_beacon
= params
->counter_offsets_beacon
;
3106 csa
.counter_offsets_presp
= params
->counter_offsets_presp
;
3107 csa
.n_counter_offsets_beacon
= params
->n_counter_offsets_beacon
;
3108 csa
.n_counter_offsets_presp
= params
->n_counter_offsets_presp
;
3109 csa
.count
= params
->count
;
3111 err
= ieee80211_assign_beacon(sdata
, ¶ms
->beacon_csa
, &csa
);
3113 kfree(sdata
->u
.ap
.next_beacon
);
3119 case NL80211_IFTYPE_ADHOC
:
3120 if (!sdata
->vif
.bss_conf
.ibss_joined
)
3123 if (params
->chandef
.width
!= sdata
->u
.ibss
.chandef
.width
)
3126 switch (params
->chandef
.width
) {
3127 case NL80211_CHAN_WIDTH_40
:
3128 if (cfg80211_get_chandef_type(¶ms
->chandef
) !=
3129 cfg80211_get_chandef_type(&sdata
->u
.ibss
.chandef
))
3131 case NL80211_CHAN_WIDTH_5
:
3132 case NL80211_CHAN_WIDTH_10
:
3133 case NL80211_CHAN_WIDTH_20_NOHT
:
3134 case NL80211_CHAN_WIDTH_20
:
3140 /* changes into another band are not supported */
3141 if (sdata
->u
.ibss
.chandef
.chan
->band
!=
3142 params
->chandef
.chan
->band
)
3145 /* see comments in the NL80211_IFTYPE_AP block */
3146 if (params
->count
> 1) {
3147 err
= ieee80211_ibss_csa_beacon(sdata
, params
);
3153 ieee80211_send_action_csa(sdata
, params
);
3156 #ifdef CONFIG_MAC80211_MESH
3157 case NL80211_IFTYPE_MESH_POINT
: {
3158 struct ieee80211_if_mesh
*ifmsh
= &sdata
->u
.mesh
;
3160 if (params
->chandef
.width
!= sdata
->vif
.bss_conf
.chandef
.width
)
3163 /* changes into another band are not supported */
3164 if (sdata
->vif
.bss_conf
.chandef
.chan
->band
!=
3165 params
->chandef
.chan
->band
)
3168 if (ifmsh
->csa_role
== IEEE80211_MESH_CSA_ROLE_NONE
) {
3169 ifmsh
->csa_role
= IEEE80211_MESH_CSA_ROLE_INIT
;
3170 if (!ifmsh
->pre_value
)
3171 ifmsh
->pre_value
= 1;
3176 /* see comments in the NL80211_IFTYPE_AP block */
3177 if (params
->count
> 1) {
3178 err
= ieee80211_mesh_csa_beacon(sdata
, params
);
3180 ifmsh
->csa_role
= IEEE80211_MESH_CSA_ROLE_NONE
;
3186 if (ifmsh
->csa_role
== IEEE80211_MESH_CSA_ROLE_INIT
)
3187 ieee80211_send_action_csa(sdata
, params
);
3200 __ieee80211_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
3201 struct cfg80211_csa_settings
*params
)
3203 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3204 struct ieee80211_local
*local
= sdata
->local
;
3205 struct ieee80211_channel_switch ch_switch
;
3206 struct ieee80211_chanctx_conf
*conf
;
3207 struct ieee80211_chanctx
*chanctx
;
3211 sdata_assert_lock(sdata
);
3212 lockdep_assert_held(&local
->mtx
);
3214 if (!list_empty(&local
->roc_list
) || local
->scanning
)
3217 if (sdata
->wdev
.cac_started
)
3220 if (cfg80211_chandef_identical(¶ms
->chandef
,
3221 &sdata
->vif
.bss_conf
.chandef
))
3224 /* don't allow another channel switch if one is already active. */
3225 if (sdata
->vif
.csa_active
)
3228 mutex_lock(&local
->chanctx_mtx
);
3229 conf
= rcu_dereference_protected(sdata
->vif
.chanctx_conf
,
3230 lockdep_is_held(&local
->chanctx_mtx
));
3236 chanctx
= container_of(conf
, struct ieee80211_chanctx
, conf
);
3242 ch_switch
.timestamp
= 0;
3243 ch_switch
.device_timestamp
= 0;
3244 ch_switch
.block_tx
= params
->block_tx
;
3245 ch_switch
.chandef
= params
->chandef
;
3246 ch_switch
.count
= params
->count
;
3248 err
= drv_pre_channel_switch(sdata
, &ch_switch
);
3252 err
= ieee80211_vif_reserve_chanctx(sdata
, ¶ms
->chandef
,
3254 params
->radar_required
);
3258 /* if reservation is invalid then this will fail */
3259 err
= ieee80211_check_combinations(sdata
, NULL
, chanctx
->mode
, 0);
3261 ieee80211_vif_unreserve_chanctx(sdata
);
3265 err
= ieee80211_set_csa_beacon(sdata
, params
, &changed
);
3267 ieee80211_vif_unreserve_chanctx(sdata
);
3271 sdata
->csa_chandef
= params
->chandef
;
3272 sdata
->csa_block_tx
= params
->block_tx
;
3273 sdata
->vif
.csa_active
= true;
3275 if (sdata
->csa_block_tx
)
3276 ieee80211_stop_vif_queues(local
, sdata
,
3277 IEEE80211_QUEUE_STOP_REASON_CSA
);
3279 cfg80211_ch_switch_started_notify(sdata
->dev
, &sdata
->csa_chandef
,
3283 ieee80211_bss_info_change_notify(sdata
, changed
);
3284 drv_channel_switch_beacon(sdata
, ¶ms
->chandef
);
3286 /* if the beacon didn't change, we can finalize immediately */
3287 ieee80211_csa_finalize(sdata
);
3291 mutex_unlock(&local
->chanctx_mtx
);
3295 int ieee80211_channel_switch(struct wiphy
*wiphy
, struct net_device
*dev
,
3296 struct cfg80211_csa_settings
*params
)
3298 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3299 struct ieee80211_local
*local
= sdata
->local
;
3302 mutex_lock(&local
->mtx
);
3303 err
= __ieee80211_channel_switch(wiphy
, dev
, params
);
3304 mutex_unlock(&local
->mtx
);
3309 static struct sk_buff
*ieee80211_make_ack_skb(struct ieee80211_local
*local
,
3310 struct sk_buff
*skb
, u64
*cookie
,
3313 unsigned long spin_flags
;
3314 struct sk_buff
*ack_skb
;
3317 ack_skb
= skb_copy(skb
, gfp
);
3319 return ERR_PTR(-ENOMEM
);
3321 spin_lock_irqsave(&local
->ack_status_lock
, spin_flags
);
3322 id
= idr_alloc(&local
->ack_status_frames
, ack_skb
,
3323 1, 0x10000, GFP_ATOMIC
);
3324 spin_unlock_irqrestore(&local
->ack_status_lock
, spin_flags
);
3328 return ERR_PTR(-ENOMEM
);
3331 IEEE80211_SKB_CB(skb
)->ack_frame_id
= id
;
3333 *cookie
= ieee80211_mgmt_tx_cookie(local
);
3334 IEEE80211_SKB_CB(ack_skb
)->ack
.cookie
= *cookie
;
3339 static int ieee80211_mgmt_tx(struct wiphy
*wiphy
, struct wireless_dev
*wdev
,
3340 struct cfg80211_mgmt_tx_params
*params
,
3343 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
3344 struct ieee80211_local
*local
= sdata
->local
;
3345 struct sk_buff
*skb
, *ack_skb
;
3346 struct sta_info
*sta
;
3347 const struct ieee80211_mgmt
*mgmt
= (void *)params
->buf
;
3348 bool need_offchan
= false;
3353 if (params
->dont_wait_for_ack
)
3354 flags
= IEEE80211_TX_CTL_NO_ACK
;
3356 flags
= IEEE80211_TX_INTFL_NL80211_FRAME_TX
|
3357 IEEE80211_TX_CTL_REQ_TX_STATUS
;
3360 flags
|= IEEE80211_TX_CTL_NO_CCK_RATE
;
3362 switch (sdata
->vif
.type
) {
3363 case NL80211_IFTYPE_ADHOC
:
3364 if (!sdata
->vif
.bss_conf
.ibss_joined
)
3365 need_offchan
= true;
3367 #ifdef CONFIG_MAC80211_MESH
3368 case NL80211_IFTYPE_MESH_POINT
:
3369 if (ieee80211_vif_is_mesh(&sdata
->vif
) &&
3370 !sdata
->u
.mesh
.mesh_id_len
)
3371 need_offchan
= true;
3374 case NL80211_IFTYPE_AP
:
3375 case NL80211_IFTYPE_AP_VLAN
:
3376 case NL80211_IFTYPE_P2P_GO
:
3377 if (sdata
->vif
.type
!= NL80211_IFTYPE_ADHOC
&&
3378 !ieee80211_vif_is_mesh(&sdata
->vif
) &&
3379 !rcu_access_pointer(sdata
->bss
->beacon
))
3380 need_offchan
= true;
3381 if (!ieee80211_is_action(mgmt
->frame_control
) ||
3382 mgmt
->u
.action
.category
== WLAN_CATEGORY_PUBLIC
||
3383 mgmt
->u
.action
.category
== WLAN_CATEGORY_SELF_PROTECTED
||
3384 mgmt
->u
.action
.category
== WLAN_CATEGORY_SPECTRUM_MGMT
)
3387 sta
= sta_info_get(sdata
, mgmt
->da
);
3392 case NL80211_IFTYPE_STATION
:
3393 case NL80211_IFTYPE_P2P_CLIENT
:
3395 if (!sdata
->u
.mgd
.associated
||
3396 (params
->offchan
&& params
->wait
&&
3397 local
->ops
->remain_on_channel
&&
3398 memcmp(sdata
->u
.mgd
.associated
->bssid
,
3399 mgmt
->bssid
, ETH_ALEN
)))
3400 need_offchan
= true;
3401 sdata_unlock(sdata
);
3403 case NL80211_IFTYPE_P2P_DEVICE
:
3404 need_offchan
= true;
3410 /* configurations requiring offchan cannot work if no channel has been
3413 if (need_offchan
&& !params
->chan
)
3416 mutex_lock(&local
->mtx
);
3418 /* Check if the operating channel is the requested channel */
3419 if (!need_offchan
) {
3420 struct ieee80211_chanctx_conf
*chanctx_conf
;
3423 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
3426 need_offchan
= params
->chan
&&
3428 chanctx_conf
->def
.chan
);
3429 } else if (!params
->chan
) {
3434 need_offchan
= true;
3439 if (need_offchan
&& !params
->offchan
) {
3444 skb
= dev_alloc_skb(local
->hw
.extra_tx_headroom
+ params
->len
);
3449 skb_reserve(skb
, local
->hw
.extra_tx_headroom
);
3451 data
= skb_put(skb
, params
->len
);
3452 memcpy(data
, params
->buf
, params
->len
);
3454 /* Update CSA counters */
3455 if (sdata
->vif
.csa_active
&&
3456 (sdata
->vif
.type
== NL80211_IFTYPE_AP
||
3457 sdata
->vif
.type
== NL80211_IFTYPE_MESH_POINT
||
3458 sdata
->vif
.type
== NL80211_IFTYPE_ADHOC
) &&
3459 params
->n_csa_offsets
) {
3461 struct beacon_data
*beacon
= NULL
;
3465 if (sdata
->vif
.type
== NL80211_IFTYPE_AP
)
3466 beacon
= rcu_dereference(sdata
->u
.ap
.beacon
);
3467 else if (sdata
->vif
.type
== NL80211_IFTYPE_ADHOC
)
3468 beacon
= rcu_dereference(sdata
->u
.ibss
.presp
);
3469 else if (ieee80211_vif_is_mesh(&sdata
->vif
))
3470 beacon
= rcu_dereference(sdata
->u
.mesh
.beacon
);
3473 for (i
= 0; i
< params
->n_csa_offsets
; i
++)
3474 data
[params
->csa_offsets
[i
]] =
3475 beacon
->csa_current_counter
;
3480 IEEE80211_SKB_CB(skb
)->flags
= flags
;
3482 skb
->dev
= sdata
->dev
;
3484 if (!params
->dont_wait_for_ack
) {
3485 /* make a copy to preserve the frame contents
3486 * in case of encryption.
3488 ack_skb
= ieee80211_make_ack_skb(local
, skb
, cookie
,
3490 if (IS_ERR(ack_skb
)) {
3491 ret
= PTR_ERR(ack_skb
);
3496 /* for cookie below */
3500 if (!need_offchan
) {
3501 ieee80211_tx_skb(sdata
, skb
);
3506 IEEE80211_SKB_CB(skb
)->flags
|= IEEE80211_TX_CTL_TX_OFFCHAN
|
3507 IEEE80211_TX_INTFL_OFFCHAN_TX_OK
;
3508 if (ieee80211_hw_check(&local
->hw
, QUEUE_CONTROL
))
3509 IEEE80211_SKB_CB(skb
)->hw_queue
=
3510 local
->hw
.offchannel_tx_hw_queue
;
3512 /* This will handle all kinds of coalescing and immediate TX */
3513 ret
= ieee80211_start_roc_work(local
, sdata
, params
->chan
,
3514 params
->wait
, cookie
, skb
,
3515 IEEE80211_ROC_TYPE_MGMT_TX
);
3519 mutex_unlock(&local
->mtx
);
3523 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy
*wiphy
,
3524 struct wireless_dev
*wdev
,
3527 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3529 return ieee80211_cancel_roc(local
, cookie
, true);
3532 static void ieee80211_mgmt_frame_register(struct wiphy
*wiphy
,
3533 struct wireless_dev
*wdev
,
3534 u16 frame_type
, bool reg
)
3536 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3537 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
3539 switch (frame_type
) {
3540 case IEEE80211_FTYPE_MGMT
| IEEE80211_STYPE_PROBE_REQ
:
3542 local
->probe_req_reg
++;
3543 sdata
->vif
.probe_req_reg
++;
3545 if (local
->probe_req_reg
)
3546 local
->probe_req_reg
--;
3548 if (sdata
->vif
.probe_req_reg
)
3549 sdata
->vif
.probe_req_reg
--;
3552 if (!local
->open_count
)
3555 if (sdata
->vif
.probe_req_reg
== 1)
3556 drv_config_iface_filter(local
, sdata
, FIF_PROBE_REQ
,
3558 else if (sdata
->vif
.probe_req_reg
== 0)
3559 drv_config_iface_filter(local
, sdata
, 0,
3562 ieee80211_configure_filter(local
);
3569 static int ieee80211_set_antenna(struct wiphy
*wiphy
, u32 tx_ant
, u32 rx_ant
)
3571 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3576 return drv_set_antenna(local
, tx_ant
, rx_ant
);
3579 static int ieee80211_get_antenna(struct wiphy
*wiphy
, u32
*tx_ant
, u32
*rx_ant
)
3581 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3583 return drv_get_antenna(local
, tx_ant
, rx_ant
);
3586 static int ieee80211_set_rekey_data(struct wiphy
*wiphy
,
3587 struct net_device
*dev
,
3588 struct cfg80211_gtk_rekey_data
*data
)
3590 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3591 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3593 if (!local
->ops
->set_rekey_data
)
3596 drv_set_rekey_data(local
, sdata
, data
);
3601 static int ieee80211_probe_client(struct wiphy
*wiphy
, struct net_device
*dev
,
3602 const u8
*peer
, u64
*cookie
)
3604 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3605 struct ieee80211_local
*local
= sdata
->local
;
3606 struct ieee80211_qos_hdr
*nullfunc
;
3607 struct sk_buff
*skb
, *ack_skb
;
3608 int size
= sizeof(*nullfunc
);
3611 struct ieee80211_tx_info
*info
;
3612 struct sta_info
*sta
;
3613 struct ieee80211_chanctx_conf
*chanctx_conf
;
3614 enum ieee80211_band band
;
3617 /* the lock is needed to assign the cookie later */
3618 mutex_lock(&local
->mtx
);
3621 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
3622 if (WARN_ON(!chanctx_conf
)) {
3626 band
= chanctx_conf
->def
.chan
->band
;
3627 sta
= sta_info_get_bss(sdata
, peer
);
3636 fc
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
3637 IEEE80211_STYPE_QOS_NULLFUNC
|
3638 IEEE80211_FCTL_FROMDS
);
3641 fc
= cpu_to_le16(IEEE80211_FTYPE_DATA
|
3642 IEEE80211_STYPE_NULLFUNC
|
3643 IEEE80211_FCTL_FROMDS
);
3646 skb
= dev_alloc_skb(local
->hw
.extra_tx_headroom
+ size
);
3654 skb_reserve(skb
, local
->hw
.extra_tx_headroom
);
3656 nullfunc
= (void *) skb_put(skb
, size
);
3657 nullfunc
->frame_control
= fc
;
3658 nullfunc
->duration_id
= 0;
3659 memcpy(nullfunc
->addr1
, sta
->sta
.addr
, ETH_ALEN
);
3660 memcpy(nullfunc
->addr2
, sdata
->vif
.addr
, ETH_ALEN
);
3661 memcpy(nullfunc
->addr3
, sdata
->vif
.addr
, ETH_ALEN
);
3662 nullfunc
->seq_ctrl
= 0;
3664 info
= IEEE80211_SKB_CB(skb
);
3666 info
->flags
|= IEEE80211_TX_CTL_REQ_TX_STATUS
|
3667 IEEE80211_TX_INTFL_NL80211_FRAME_TX
;
3670 skb_set_queue_mapping(skb
, IEEE80211_AC_VO
);
3673 nullfunc
->qos_ctrl
= cpu_to_le16(7);
3675 ack_skb
= ieee80211_make_ack_skb(local
, skb
, cookie
, GFP_ATOMIC
);
3676 if (IS_ERR(ack_skb
)) {
3678 ret
= PTR_ERR(ack_skb
);
3683 ieee80211_xmit(sdata
, sta
, skb
);
3689 mutex_unlock(&local
->mtx
);
3694 static int ieee80211_cfg_get_channel(struct wiphy
*wiphy
,
3695 struct wireless_dev
*wdev
,
3696 struct cfg80211_chan_def
*chandef
)
3698 struct ieee80211_sub_if_data
*sdata
= IEEE80211_WDEV_TO_SUB_IF(wdev
);
3699 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3700 struct ieee80211_chanctx_conf
*chanctx_conf
;
3704 chanctx_conf
= rcu_dereference(sdata
->vif
.chanctx_conf
);
3706 *chandef
= sdata
->vif
.bss_conf
.chandef
;
3708 } else if (local
->open_count
> 0 &&
3709 local
->open_count
== local
->monitors
&&
3710 sdata
->vif
.type
== NL80211_IFTYPE_MONITOR
) {
3711 if (local
->use_chanctx
)
3712 *chandef
= local
->monitor_chandef
;
3714 *chandef
= local
->_oper_chandef
;
3723 static void ieee80211_set_wakeup(struct wiphy
*wiphy
, bool enabled
)
3725 drv_set_wakeup(wiphy_priv(wiphy
), enabled
);
3729 static int ieee80211_set_qos_map(struct wiphy
*wiphy
,
3730 struct net_device
*dev
,
3731 struct cfg80211_qos_map
*qos_map
)
3733 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3734 struct mac80211_qos_map
*new_qos_map
, *old_qos_map
;
3737 new_qos_map
= kzalloc(sizeof(*new_qos_map
), GFP_KERNEL
);
3740 memcpy(&new_qos_map
->qos_map
, qos_map
, sizeof(*qos_map
));
3742 /* A NULL qos_map was passed to disable QoS mapping */
3746 old_qos_map
= sdata_dereference(sdata
->qos_map
, sdata
);
3747 rcu_assign_pointer(sdata
->qos_map
, new_qos_map
);
3749 kfree_rcu(old_qos_map
, rcu_head
);
3754 static int ieee80211_set_ap_chanwidth(struct wiphy
*wiphy
,
3755 struct net_device
*dev
,
3756 struct cfg80211_chan_def
*chandef
)
3758 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3762 ret
= ieee80211_vif_change_bandwidth(sdata
, chandef
, &changed
);
3764 ieee80211_bss_info_change_notify(sdata
, changed
);
3769 static int ieee80211_add_tx_ts(struct wiphy
*wiphy
, struct net_device
*dev
,
3770 u8 tsid
, const u8
*peer
, u8 up
,
3773 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3774 struct ieee80211_if_managed
*ifmgd
= &sdata
->u
.mgd
;
3775 int ac
= ieee802_1d_to_ac
[up
];
3777 if (sdata
->vif
.type
!= NL80211_IFTYPE_STATION
)
3780 if (!(sdata
->wmm_acm
& BIT(up
)))
3783 if (ifmgd
->tx_tspec
[ac
].admitted_time
)
3786 if (admitted_time
) {
3787 ifmgd
->tx_tspec
[ac
].admitted_time
= 32 * admitted_time
;
3788 ifmgd
->tx_tspec
[ac
].tsid
= tsid
;
3789 ifmgd
->tx_tspec
[ac
].up
= up
;
3795 static int ieee80211_del_tx_ts(struct wiphy
*wiphy
, struct net_device
*dev
,
3796 u8 tsid
, const u8
*peer
)
3798 struct ieee80211_sub_if_data
*sdata
= IEEE80211_DEV_TO_SUB_IF(dev
);
3799 struct ieee80211_if_managed
*ifmgd
= &sdata
->u
.mgd
;
3800 struct ieee80211_local
*local
= wiphy_priv(wiphy
);
3803 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++) {
3804 struct ieee80211_sta_tx_tspec
*tx_tspec
= &ifmgd
->tx_tspec
[ac
];
3806 /* skip unused entries */
3807 if (!tx_tspec
->admitted_time
)
3810 if (tx_tspec
->tsid
!= tsid
)
3813 /* due to this new packets will be reassigned to non-ACM ACs */
3816 /* Make sure that all packets have been sent to avoid to
3817 * restore the QoS params on packets that are still on the
3821 ieee80211_flush_queues(local
, sdata
, false);
3823 /* restore the normal QoS parameters
3824 * (unconditionally to avoid races)
3826 tx_tspec
->action
= TX_TSPEC_ACTION_STOP_DOWNGRADE
;
3827 tx_tspec
->downgraded
= false;
3828 ieee80211_sta_handle_tspec_ac_params(sdata
);
3830 /* finally clear all the data */
3831 memset(tx_tspec
, 0, sizeof(*tx_tspec
));
3839 const struct cfg80211_ops mac80211_config_ops
= {
3840 .add_virtual_intf
= ieee80211_add_iface
,
3841 .del_virtual_intf
= ieee80211_del_iface
,
3842 .change_virtual_intf
= ieee80211_change_iface
,
3843 .start_p2p_device
= ieee80211_start_p2p_device
,
3844 .stop_p2p_device
= ieee80211_stop_p2p_device
,
3845 .add_key
= ieee80211_add_key
,
3846 .del_key
= ieee80211_del_key
,
3847 .get_key
= ieee80211_get_key
,
3848 .set_default_key
= ieee80211_config_default_key
,
3849 .set_default_mgmt_key
= ieee80211_config_default_mgmt_key
,
3850 .start_ap
= ieee80211_start_ap
,
3851 .change_beacon
= ieee80211_change_beacon
,
3852 .stop_ap
= ieee80211_stop_ap
,
3853 .add_station
= ieee80211_add_station
,
3854 .del_station
= ieee80211_del_station
,
3855 .change_station
= ieee80211_change_station
,
3856 .get_station
= ieee80211_get_station
,
3857 .dump_station
= ieee80211_dump_station
,
3858 .dump_survey
= ieee80211_dump_survey
,
3859 #ifdef CONFIG_MAC80211_MESH
3860 .add_mpath
= ieee80211_add_mpath
,
3861 .del_mpath
= ieee80211_del_mpath
,
3862 .change_mpath
= ieee80211_change_mpath
,
3863 .get_mpath
= ieee80211_get_mpath
,
3864 .dump_mpath
= ieee80211_dump_mpath
,
3865 .get_mpp
= ieee80211_get_mpp
,
3866 .dump_mpp
= ieee80211_dump_mpp
,
3867 .update_mesh_config
= ieee80211_update_mesh_config
,
3868 .get_mesh_config
= ieee80211_get_mesh_config
,
3869 .join_mesh
= ieee80211_join_mesh
,
3870 .leave_mesh
= ieee80211_leave_mesh
,
3872 .join_ocb
= ieee80211_join_ocb
,
3873 .leave_ocb
= ieee80211_leave_ocb
,
3874 .change_bss
= ieee80211_change_bss
,
3875 .set_txq_params
= ieee80211_set_txq_params
,
3876 .set_monitor_channel
= ieee80211_set_monitor_channel
,
3877 .suspend
= ieee80211_suspend
,
3878 .resume
= ieee80211_resume
,
3879 .scan
= ieee80211_scan
,
3880 .sched_scan_start
= ieee80211_sched_scan_start
,
3881 .sched_scan_stop
= ieee80211_sched_scan_stop
,
3882 .auth
= ieee80211_auth
,
3883 .assoc
= ieee80211_assoc
,
3884 .deauth
= ieee80211_deauth
,
3885 .disassoc
= ieee80211_disassoc
,
3886 .join_ibss
= ieee80211_join_ibss
,
3887 .leave_ibss
= ieee80211_leave_ibss
,
3888 .set_mcast_rate
= ieee80211_set_mcast_rate
,
3889 .set_wiphy_params
= ieee80211_set_wiphy_params
,
3890 .set_tx_power
= ieee80211_set_tx_power
,
3891 .get_tx_power
= ieee80211_get_tx_power
,
3892 .set_wds_peer
= ieee80211_set_wds_peer
,
3893 .rfkill_poll
= ieee80211_rfkill_poll
,
3894 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd
)
3895 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump
)
3896 .set_power_mgmt
= ieee80211_set_power_mgmt
,
3897 .set_bitrate_mask
= ieee80211_set_bitrate_mask
,
3898 .remain_on_channel
= ieee80211_remain_on_channel
,
3899 .cancel_remain_on_channel
= ieee80211_cancel_remain_on_channel
,
3900 .mgmt_tx
= ieee80211_mgmt_tx
,
3901 .mgmt_tx_cancel_wait
= ieee80211_mgmt_tx_cancel_wait
,
3902 .set_cqm_rssi_config
= ieee80211_set_cqm_rssi_config
,
3903 .mgmt_frame_register
= ieee80211_mgmt_frame_register
,
3904 .set_antenna
= ieee80211_set_antenna
,
3905 .get_antenna
= ieee80211_get_antenna
,
3906 .set_rekey_data
= ieee80211_set_rekey_data
,
3907 .tdls_oper
= ieee80211_tdls_oper
,
3908 .tdls_mgmt
= ieee80211_tdls_mgmt
,
3909 .tdls_channel_switch
= ieee80211_tdls_channel_switch
,
3910 .tdls_cancel_channel_switch
= ieee80211_tdls_cancel_channel_switch
,
3911 .probe_client
= ieee80211_probe_client
,
3912 .set_noack_map
= ieee80211_set_noack_map
,
3914 .set_wakeup
= ieee80211_set_wakeup
,
3916 .get_channel
= ieee80211_cfg_get_channel
,
3917 .start_radar_detection
= ieee80211_start_radar_detection
,
3918 .channel_switch
= ieee80211_channel_switch
,
3919 .set_qos_map
= ieee80211_set_qos_map
,
3920 .set_ap_chanwidth
= ieee80211_set_ap_chanwidth
,
3921 .add_tx_ts
= ieee80211_add_tx_ts
,
3922 .del_tx_ts
= ieee80211_del_tx_ts
,