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wifi: mac80211_hwsim: remove multicast workaround
[linux-block.git] / net / mac80211 / util.c
CommitLineData
d2912cb1 1// SPDX-License-Identifier: GPL-2.0-only
c2d1560a
JB		 2/*
3 * Copyright 2002-2005, Instant802 Networks, Inc.
4 * Copyright 2005-2006, Devicescape Software, Inc.
5 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
6 * Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
d98ad83e 7 * Copyright 2013-2014 Intel Mobile Communications GmbH
da6a4352 8 * Copyright (C) 2015-2017 Intel Deutschland GmbH
23a5f0af 9 * Copyright (C) 2018-2022 Intel Corporation
c2d1560a 10 *
c2d1560a
JB		 11 * utilities for mac80211
12 */
13
14#include <net/mac80211.h>
15#include <linux/netdevice.h>
bc3b2d7f 16#include <linux/export.h>
c2d1560a
JB		 17#include <linux/types.h>
18#include <linux/slab.h>
19#include <linux/skbuff.h>
20#include <linux/etherdevice.h>
21#include <linux/if_arp.h>
c2d1560a 22#include <linux/bitmap.h>
dd76986b 23#include <linux/crc32.h>
881d966b 24#include <net/net_namespace.h>
c2d1560a 25#include <net/cfg80211.h>
dabeb344 26#include <net/rtnetlink.h>
c2d1560a
JB		 27
28#include "ieee80211_i.h"
24487981 29#include "driver-ops.h"
2c8dccc7 30#include "rate.h"
ee385855 31#include "mesh.h"
c2d1560a 32#include "wme.h"
f2753ddb 33#include "led.h"
fffd0934 34#include "wep.h"
c2d1560a
JB		 35
36/* privid for wiphys to determine whether they belong to us or not */
8a47cea7 37const void *const mac80211_wiphy_privid = &mac80211_wiphy_privid;
c2d1560a 38
9a95371a
LR		 39struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy)
40{
41 struct ieee80211_local *local;
9a95371a
LR		 42
43 local = wiphy_priv(wiphy);
44 return &local->hw;
45}
46EXPORT_SYMBOL(wiphy_to_ieee80211_hw);
c2d1560a 47
09a740ce
TP		 48u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
49 enum nl80211_iftype type)
50{
51 __le16 fc = hdr->frame_control;
52
53 if (ieee80211_is_data(fc)) {
54 if (len < 24) /* drop incorrect hdr len (data) */
55 return NULL;
56
57 if (ieee80211_has_a4(fc))
58 return NULL;
59 if (ieee80211_has_tods(fc))
60 return hdr->addr1;
61 if (ieee80211_has_fromds(fc))
62 return hdr->addr2;
63
64 return hdr->addr3;
65 }
66
67 if (ieee80211_is_s1g_beacon(fc)) {
68 struct ieee80211_ext *ext = (void *) hdr;
69
70 return ext->u.s1g_beacon.sa;
71 }
72
73 if (ieee80211_is_mgmt(fc)) {
74 if (len < 24) /* drop incorrect hdr len (mgmt) */
75 return NULL;
76 return hdr->addr3;
77 }
78
79 if (ieee80211_is_ctl(fc)) {
80 if (ieee80211_is_pspoll(fc))
81 return hdr->addr1;
82
83 if (ieee80211_is_back_req(fc)) {
84 switch (type) {
85 case NL80211_IFTYPE_STATION:
86 return hdr->addr2;
87 case NL80211_IFTYPE_AP:
88 case NL80211_IFTYPE_AP_VLAN:
89 return hdr->addr1;
90 default:
91 break; /* fall through to the return */
92 }
93 }
94 }
95
96 return NULL;
97}
98EXPORT_SYMBOL(ieee80211_get_bssid);
99
5cf121c3 100void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx)
c2d1560a 101{
252b86c4 102 struct sk_buff *skb;
2de8e0d9
JB		 103 struct ieee80211_hdr *hdr;
104
252b86c4 105 skb_queue_walk(&tx->skbs, skb) {
2de8e0d9
JB		 106 hdr = (struct ieee80211_hdr *) skb->data;
107 hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
252b86c4 108 }
c2d1560a
JB		 109}
110
57fbcce3 111int ieee80211_frame_duration(enum nl80211_band band, size_t len,
438b61b7
SW		 112 int rate, int erp, int short_preamble,
113 int shift)
c2d1560a
JB		 114{
115 int dur;
116
117 /* calculate duration (in microseconds, rounded up to next higher
118 * integer if it includes a fractional microsecond) to send frame of
119 * len bytes (does not include FCS) at the given rate. Duration will
120 * also include SIFS.
121 *
122 * rate is in 100 kbps, so divident is multiplied by 10 in the
123 * DIV_ROUND_UP() operations.
438b61b7
SW		 124 *
125 * shift may be 2 for 5 MHz channels or 1 for 10 MHz channels, and
126 * is assumed to be 0 otherwise.
c2d1560a
JB		 127 */
128
57fbcce3 129 if (band == NL80211_BAND_5GHZ || erp) {
c2d1560a
JB		 130 /*
131 * OFDM:
132 *
133 * N_DBPS = DATARATE x 4
134 * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS)
135 * (16 = SIGNAL time, 6 = tail bits)
136 * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext
137 *
138 * T_SYM = 4 usec
438b61b7 139 * 802.11a - 18.5.2: aSIFSTime = 16 usec
c2d1560a
JB		 140 * 802.11g - 19.8.4: aSIFSTime = 10 usec +
141 * signal ext = 6 usec
142 */
c2d1560a 143 dur = 16; /* SIFS + signal ext */
438b61b7
SW		 144 dur += 16; /* IEEE 802.11-2012 18.3.2.4: T_PREAMBLE = 16 usec */
145 dur += 4; /* IEEE 802.11-2012 18.3.2.4: T_SIGNAL = 4 usec */
438b61b7
SW		 146
147 /* IEEE 802.11-2012 18.3.2.4: all values above are:
148 * * times 4 for 5 MHz
149 * * times 2 for 10 MHz
150 */
151 dur *= 1 << shift;
2103dec1
SW		 152
153 /* rates should already consider the channel bandwidth,
154 * don't apply divisor again.
155 */
156 dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10,
157 4 * rate); /* T_SYM x N_SYM */
c2d1560a
JB		 158 } else {
159 /*
160 * 802.11b or 802.11g with 802.11b compatibility:
161 * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime +
162 * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0.
163 *
164 * 802.11 (DS): 15.3.3, 802.11b: 18.3.4
165 * aSIFSTime = 10 usec
166 * aPreambleLength = 144 usec or 72 usec with short preamble
167 * aPLCPHeaderLength = 48 usec or 24 usec with short preamble
168 */
169 dur = 10; /* aSIFSTime = 10 usec */
170 dur += short_preamble ? (72 + 24) : (144 + 48);
171
172 dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate);
173 }
174
175 return dur;
176}
177
178/* Exported duration function for driver use */
32bfd35d
JB		 179__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
180 struct ieee80211_vif *vif,
57fbcce3 181 enum nl80211_band band,
8318d78a
JB		 182 size_t frame_len,
183 struct ieee80211_rate *rate)
c2d1560a 184{
25d834e1 185 struct ieee80211_sub_if_data *sdata;
c2d1560a 186 u16 dur;
438b61b7 187 int erp, shift = 0;
25d834e1 188 bool short_preamble = false;
c2d1560a 189
8318d78a 190 erp = 0;
25d834e1
JB		 191 if (vif) {
192 sdata = vif_to_sdata(vif);
bda3933a 193 short_preamble = sdata->vif.bss_conf.use_short_preamble;
39eac2de 194 if (sdata->deflink.operating_11g_mode)
25d834e1 195 erp = rate->flags & IEEE80211_RATE_ERP_G;
438b61b7 196 shift = ieee80211_vif_get_shift(vif);
25d834e1 197 }
8318d78a 198
4ee73f33 199 dur = ieee80211_frame_duration(band, frame_len, rate->bitrate, erp,
438b61b7 200 short_preamble, shift);
c2d1560a
JB		 201
202 return cpu_to_le16(dur);
203}
204EXPORT_SYMBOL(ieee80211_generic_frame_duration);
205
32bfd35d
JB		 206__le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
207 struct ieee80211_vif *vif, size_t frame_len,
e039fa4a 208 const struct ieee80211_tx_info *frame_txctl)
c2d1560a
JB		 209{
210 struct ieee80211_local *local = hw_to_local(hw);
211 struct ieee80211_rate *rate;
25d834e1 212 struct ieee80211_sub_if_data *sdata;
471b3efd 213 bool short_preamble;
2103dec1 214 int erp, shift = 0, bitrate;
c2d1560a 215 u16 dur;
2e92e6f2
JB		 216 struct ieee80211_supported_band *sband;
217
4ee73f33 218 sband = local->hw.wiphy->bands[frame_txctl->band];
c2d1560a 219
25d834e1 220 short_preamble = false;
7e9ed188 221
e039fa4a 222 rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx];
8318d78a
JB		 223
224 erp = 0;
25d834e1
JB		 225 if (vif) {
226 sdata = vif_to_sdata(vif);
bda3933a 227 short_preamble = sdata->vif.bss_conf.use_short_preamble;
39eac2de 228 if (sdata->deflink.operating_11g_mode)
25d834e1 229 erp = rate->flags & IEEE80211_RATE_ERP_G;
438b61b7 230 shift = ieee80211_vif_get_shift(vif);
25d834e1 231 }
c2d1560a 232
2103dec1
SW		 233 bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift);
234
c2d1560a 235 /* CTS duration */
2103dec1 236 dur = ieee80211_frame_duration(sband->band, 10, bitrate,
438b61b7 237 erp, short_preamble, shift);
c2d1560a 238 /* Data frame duration */
2103dec1 239 dur += ieee80211_frame_duration(sband->band, frame_len, bitrate,
438b61b7 240 erp, short_preamble, shift);
c2d1560a 241 /* ACK duration */
2103dec1 242 dur += ieee80211_frame_duration(sband->band, 10, bitrate,
438b61b7 243 erp, short_preamble, shift);
c2d1560a
JB		 244
245 return cpu_to_le16(dur);
246}
247EXPORT_SYMBOL(ieee80211_rts_duration);
248
32bfd35d
JB		 249__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
250 struct ieee80211_vif *vif,
c2d1560a 251 size_t frame_len,
e039fa4a 252 const struct ieee80211_tx_info *frame_txctl)
c2d1560a
JB		 253{
254 struct ieee80211_local *local = hw_to_local(hw);
255 struct ieee80211_rate *rate;
25d834e1 256 struct ieee80211_sub_if_data *sdata;
471b3efd 257 bool short_preamble;
2103dec1 258 int erp, shift = 0, bitrate;
c2d1560a 259 u16 dur;
2e92e6f2
JB		 260 struct ieee80211_supported_band *sband;
261
4ee73f33 262 sband = local->hw.wiphy->bands[frame_txctl->band];
c2d1560a 263
25d834e1 264 short_preamble = false;
7e9ed188 265
e039fa4a 266 rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx];
8318d78a 267 erp = 0;
25d834e1
JB		 268 if (vif) {
269 sdata = vif_to_sdata(vif);
bda3933a 270 short_preamble = sdata->vif.bss_conf.use_short_preamble;
39eac2de 271 if (sdata->deflink.operating_11g_mode)
25d834e1 272 erp = rate->flags & IEEE80211_RATE_ERP_G;
438b61b7 273 shift = ieee80211_vif_get_shift(vif);
25d834e1 274 }
c2d1560a 275
2103dec1
SW		 276 bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift);
277
c2d1560a 278 /* Data frame duration */
2103dec1 279 dur = ieee80211_frame_duration(sband->band, frame_len, bitrate,
438b61b7 280 erp, short_preamble, shift);
e039fa4a 281 if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) {
c2d1560a 282 /* ACK duration */
2103dec1 283 dur += ieee80211_frame_duration(sband->band, 10, bitrate,
438b61b7 284 erp, short_preamble, shift);
c2d1560a
JB		 285 }
286
287 return cpu_to_le16(dur);
288}
289EXPORT_SYMBOL(ieee80211_ctstoself_duration);
290
21a5d4c3
MP		 291static void __ieee80211_wake_txqs(struct ieee80211_sub_if_data *sdata, int ac)
292{
293 struct ieee80211_local *local = sdata->local;
294 struct ieee80211_vif *vif = &sdata->vif;
295 struct fq *fq = &local->fq;
296 struct ps_data *ps = NULL;
297 struct txq_info *txqi;
298 struct sta_info *sta;
299 int i;
300
d8dec42b
JB		 301 local_bh_disable();
302 spin_lock(&fq->lock);
21a5d4c3 303
f856373e
FF		 304 if (!test_bit(SDATA_STATE_RUNNING, &sdata->state))
305 goto out;
306
21a5d4c3
MP		 307 if (sdata->vif.type == NL80211_IFTYPE_AP)
308 ps = &sdata->bss->ps;
309
310 sdata->vif.txqs_stopped[ac] = false;
311
312 list_for_each_entry_rcu(sta, &local->sta_list, list) {
313 if (sdata != sta->sdata)
314 continue;
315
316 for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) {
317 struct ieee80211_txq *txq = sta->sta.txq[i];
318
a5ae3264
ES		 319 if (!txq)
320 continue;
321
21a5d4c3
MP		 322 txqi = to_txq_info(txq);
323
324 if (ac != txq->ac)
325 continue;
326
327 if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX,
328 &txqi->flags))
329 continue;
330
d8dec42b 331 spin_unlock(&fq->lock);
21a5d4c3 332 drv_wake_tx_queue(local, txqi);
d8dec42b 333 spin_lock(&fq->lock);
21a5d4c3
MP		 334 }
335 }
336
337 if (!vif->txq)
338 goto out;
339
340 txqi = to_txq_info(vif->txq);
341
342 if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txqi->flags) ||
343 (ps && atomic_read(&ps->num_sta_ps)) || ac != vif->txq->ac)
344 goto out;
345
d8dec42b 346 spin_unlock(&fq->lock);
21a5d4c3
MP		 347
348 drv_wake_tx_queue(local, txqi);
d8dec42b 349 local_bh_enable();
21a5d4c3
MP		 350 return;
351out:
d8dec42b
JB		 352 spin_unlock(&fq->lock);
353 local_bh_enable();
21a5d4c3
MP		 354}
355
f6c7f03f
EG		 356static void
357__releases(&local->queue_stop_reason_lock)
358__acquires(&local->queue_stop_reason_lock)
359_ieee80211_wake_txqs(struct ieee80211_local *local, unsigned long *flags)
21a5d4c3 360{
21a5d4c3
MP		 361 struct ieee80211_sub_if_data *sdata;
362 int n_acs = IEEE80211_NUM_ACS;
21a5d4c3
MP		 363 int i;
364
365 rcu_read_lock();
21a5d4c3
MP		 366
367 if (local->hw.queues < IEEE80211_NUM_ACS)
368 n_acs = 1;
369
370 for (i = 0; i < local->hw.queues; i++) {
371 if (local->queue_stop_reasons[i])
372 continue;
373
f6c7f03f 374 spin_unlock_irqrestore(&local->queue_stop_reason_lock, *flags);
21a5d4c3
MP		 375 list_for_each_entry_rcu(sdata, &local->interfaces, list) {
376 int ac;
377
378 for (ac = 0; ac < n_acs; ac++) {
379 int ac_queue = sdata->vif.hw_queue[ac];
380
381 if (ac_queue == i ||
382 sdata->vif.cab_queue == i)
383 __ieee80211_wake_txqs(sdata, ac);
384 }
385 }
f6c7f03f 386 spin_lock_irqsave(&local->queue_stop_reason_lock, *flags);
21a5d4c3
MP		 387 }
388
21a5d4c3
MP		 389 rcu_read_unlock();
390}
391
da1cad73 392void ieee80211_wake_txqs(struct tasklet_struct *t)
f6c7f03f 393{
da1cad73
AP		 394 struct ieee80211_local *local = from_tasklet(local, t,
395 wake_txqs_tasklet);
f6c7f03f
EG		 396 unsigned long flags;
397
398 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
399 _ieee80211_wake_txqs(local, &flags);
400 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
401}
402
3a25a8c8
JB		 403void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue)
404{
405 struct ieee80211_sub_if_data *sdata;
a6f38ac3
JB		 406 int n_acs = IEEE80211_NUM_ACS;
407
80a83cfc
MK		 408 if (local->ops->wake_tx_queue)
409 return;
410
a6f38ac3
JB		 411 if (local->hw.queues < IEEE80211_NUM_ACS)
412 n_acs = 1;
3a25a8c8
JB		 413
414 list_for_each_entry_rcu(sdata, &local->interfaces, list) {
415 int ac;
416
f142c6b9
JB		 417 if (!sdata->dev)
418 continue;
419
3a25a8c8
JB		 420 if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE &&
421 local->queue_stop_reasons[sdata->vif.cab_queue] != 0)
422 continue;
423
a6f38ac3 424 for (ac = 0; ac < n_acs; ac++) {
3a25a8c8
JB		 425 int ac_queue = sdata->vif.hw_queue[ac];
426
427 if (ac_queue == queue ||
428 (sdata->vif.cab_queue == queue &&
429 local->queue_stop_reasons[ac_queue] == 0 &&
430 skb_queue_empty(&local->pending[ac_queue])))
431 netif_wake_subqueue(sdata->dev, ac);
432 }
433 }
434}
435
ce7c9111 436static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue,
cca07b00 437 enum queue_stop_reason reason,
f6c7f03f
EG		 438 bool refcounted,
439 unsigned long *flags)
c2d1560a
JB		 440{
441 struct ieee80211_local *local = hw_to_local(hw);
442
b5878a2d
JB		 443 trace_wake_queue(local, queue, reason);
444
e4e72fb4
JB		 445 if (WARN_ON(queue >= hw->queues))
446 return;
ce7c9111 447
ada15125
JB		 448 if (!test_bit(reason, &local->queue_stop_reasons[queue]))
449 return;
450
856142cd 451 if (!refcounted) {
cca07b00 452 local->q_stop_reasons[queue][reason] = 0;
856142cd 453 } else {
cca07b00 454 local->q_stop_reasons[queue][reason]--;
856142cd
JB		 455 if (WARN_ON(local->q_stop_reasons[queue][reason] < 0))
456 local->q_stop_reasons[queue][reason] = 0;
457 }
cca07b00
LC		 458
459 if (local->q_stop_reasons[queue][reason] == 0)
460 __clear_bit(reason, &local->queue_stop_reasons[queue]);
96f5e66e
JB		 461
462 if (local->queue_stop_reasons[queue] != 0)
463 /* someone still has this queue stopped */
464 return;
465
7236fe29
JB		 466 if (skb_queue_empty(&local->pending[queue])) {
467 rcu_read_lock();
3a25a8c8 468 ieee80211_propagate_queue_wake(local, queue);
7236fe29
JB		 469 rcu_read_unlock();
470 } else
3b8d81e0 471 tasklet_schedule(&local->tx_pending_tasklet);
21a5d4c3 472
f6c7f03f
EG		 473 /*
474 * Calling _ieee80211_wake_txqs here can be a problem because it may
475 * release queue_stop_reason_lock which has been taken by
476 * __ieee80211_wake_queue's caller. It is certainly not very nice to
477 * release someone's lock, but it is fine because all the callers of
478 * __ieee80211_wake_queue call it right before releasing the lock.
479 */
480 if (local->ops->wake_tx_queue) {
481 if (reason == IEEE80211_QUEUE_STOP_REASON_DRIVER)
482 tasklet_schedule(&local->wake_txqs_tasklet);
483 else
484 _ieee80211_wake_txqs(local, flags);
485 }
c2d1560a 486}
ce7c9111 487
96f5e66e 488void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
cca07b00
LC		 489 enum queue_stop_reason reason,
490 bool refcounted)
ce7c9111
KV		 491{
492 struct ieee80211_local *local = hw_to_local(hw);
493 unsigned long flags;
494
495 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
f6c7f03f 496 __ieee80211_wake_queue(hw, queue, reason, refcounted, &flags);
ce7c9111
KV		 497 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
498}
499
500void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue)
501{
502 ieee80211_wake_queue_by_reason(hw, queue,
cca07b00
LC		 503 IEEE80211_QUEUE_STOP_REASON_DRIVER,
504 false);
ce7c9111 505}
c2d1560a
JB		 506EXPORT_SYMBOL(ieee80211_wake_queue);
507
ce7c9111 508static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue,
cca07b00
LC		 509 enum queue_stop_reason reason,
510 bool refcounted)
c2d1560a
JB		 511{
512 struct ieee80211_local *local = hw_to_local(hw);
cf0277e7 513 struct ieee80211_sub_if_data *sdata;
a6f38ac3 514 int n_acs = IEEE80211_NUM_ACS;
c2d1560a 515
b5878a2d
JB		 516 trace_stop_queue(local, queue, reason);
517
e4e72fb4
JB		 518 if (WARN_ON(queue >= hw->queues))
519 return;
96f5e66e 520
cca07b00
LC		 521 if (!refcounted)
522 local->q_stop_reasons[queue][reason] = 1;
523 else
524 local->q_stop_reasons[queue][reason]++;
ada15125 525
cca07b00
LC		 526 if (__test_and_set_bit(reason, &local->queue_stop_reasons[queue]))
527 return;
cf0277e7 528
a6f38ac3
JB		 529 if (local->hw.queues < IEEE80211_NUM_ACS)
530 n_acs = 1;
531
cf0277e7 532 rcu_read_lock();
3a25a8c8
JB		 533 list_for_each_entry_rcu(sdata, &local->interfaces, list) {
534 int ac;
535
f142c6b9
JB		 536 if (!sdata->dev)
537 continue;
538
a6f38ac3 539 for (ac = 0; ac < n_acs; ac++) {
3a25a8c8 540 if (sdata->vif.hw_queue[ac] == queue ||
21a5d4c3
MP		 541 sdata->vif.cab_queue == queue) {
542 if (!local->ops->wake_tx_queue) {
543 netif_stop_subqueue(sdata->dev, ac);
544 continue;
545 }
546 spin_lock(&local->fq.lock);
547 sdata->vif.txqs_stopped[ac] = true;
548 spin_unlock(&local->fq.lock);
549 }
3a25a8c8
JB		 550 }
551 }
cf0277e7 552 rcu_read_unlock();
c2d1560a 553}
ce7c9111 554
96f5e66e 555void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
cca07b00
LC		 556 enum queue_stop_reason reason,
557 bool refcounted)
ce7c9111
KV		 558{
559 struct ieee80211_local *local = hw_to_local(hw);
560 unsigned long flags;
561
562 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
cca07b00 563 __ieee80211_stop_queue(hw, queue, reason, refcounted);
ce7c9111
KV		 564 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
565}
566
567void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue)
568{
569 ieee80211_stop_queue_by_reason(hw, queue,
cca07b00
LC		 570 IEEE80211_QUEUE_STOP_REASON_DRIVER,
571 false);
ce7c9111 572}
c2d1560a
JB		 573EXPORT_SYMBOL(ieee80211_stop_queue);
574
8f77f384
JB		 575void ieee80211_add_pending_skb(struct ieee80211_local *local,
576 struct sk_buff *skb)
577{
578 struct ieee80211_hw *hw = &local->hw;
579 unsigned long flags;
a7bc376c 580 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
3a25a8c8 581 int queue = info->hw_queue;
a7bc376c
JB		 582
583 if (WARN_ON(!info->control.vif)) {
d4fa14cd 584 ieee80211_free_txskb(&local->hw, skb);
a7bc376c
JB		 585 return;
586 }
8f77f384
JB		 587
588 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
cca07b00
LC		 589 __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
590 false);
3b8d81e0 591 __skb_queue_tail(&local->pending[queue], skb);
cca07b00 592 __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
f6c7f03f 593 false, &flags);
8f77f384
JB		 594 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
595}
596
e3685e03
JB		 597void ieee80211_add_pending_skbs(struct ieee80211_local *local,
598 struct sk_buff_head *skbs)
8f77f384
JB		 599{
600 struct ieee80211_hw *hw = &local->hw;
601 struct sk_buff *skb;
602 unsigned long flags;
b0b97a8a 603 int queue, i;
8f77f384
JB		 604
605 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
8f77f384 606 while ((skb = skb_dequeue(skbs))) {
a7bc376c
JB		 607 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
608
609 if (WARN_ON(!info->control.vif)) {
d4fa14cd 610 ieee80211_free_txskb(&local->hw, skb);
a7bc376c
JB		 611 continue;
612 }
613
3a25a8c8 614 queue = info->hw_queue;
4644ae89
JB		 615
616 __ieee80211_stop_queue(hw, queue,
cca07b00
LC		 617 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
618 false);
4644ae89 619
3b8d81e0 620 __skb_queue_tail(&local->pending[queue], skb);
8f77f384
JB		 621 }
622
3b8d81e0 623 for (i = 0; i < hw->queues; i++)
8f77f384 624 __ieee80211_wake_queue(hw, i,
cca07b00 625 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
f6c7f03f 626 false, &flags);
8f77f384 627 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
8f77f384
JB		 628}
629
ce7c9111 630void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
445ea4e8 631 unsigned long queues,
cca07b00
LC		 632 enum queue_stop_reason reason,
633 bool refcounted)
c2d1560a 634{
ce7c9111
KV		 635 struct ieee80211_local *local = hw_to_local(hw);
636 unsigned long flags;
c2d1560a
JB		 637 int i;
638
ce7c9111
KV		 639 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
640
445ea4e8 641 for_each_set_bit(i, &queues, hw->queues)
cca07b00 642 __ieee80211_stop_queue(hw, i, reason, refcounted);
ce7c9111
KV		 643
644 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
645}
646
647void ieee80211_stop_queues(struct ieee80211_hw *hw)
648{
445ea4e8 649 ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP,
cca07b00
LC		 650 IEEE80211_QUEUE_STOP_REASON_DRIVER,
651 false);
c2d1560a
JB		 652}
653EXPORT_SYMBOL(ieee80211_stop_queues);
654
92ab8535
TW		 655int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue)
656{
657 struct ieee80211_local *local = hw_to_local(hw);
3b8d81e0
JB		 658 unsigned long flags;
659 int ret;
96f5e66e 660
e4e72fb4
JB		 661 if (WARN_ON(queue >= hw->queues))
662 return true;
96f5e66e 663
3b8d81e0 664 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
2419ea14
TP		 665 ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER,
666 &local->queue_stop_reasons[queue]);
3b8d81e0
JB		 667 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
668 return ret;
92ab8535
TW		 669}
670EXPORT_SYMBOL(ieee80211_queue_stopped);
671
ce7c9111 672void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
445ea4e8 673 unsigned long queues,
cca07b00
LC		 674 enum queue_stop_reason reason,
675 bool refcounted)
c2d1560a 676{
ce7c9111
KV		 677 struct ieee80211_local *local = hw_to_local(hw);
678 unsigned long flags;
c2d1560a
JB		 679 int i;
680
ce7c9111
KV		 681 spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
682
445ea4e8 683 for_each_set_bit(i, &queues, hw->queues)
f6c7f03f 684 __ieee80211_wake_queue(hw, i, reason, refcounted, &flags);
ce7c9111
KV		 685
686 spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
687}
688
689void ieee80211_wake_queues(struct ieee80211_hw *hw)
690{
445ea4e8 691 ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP,
cca07b00
LC		 692 IEEE80211_QUEUE_STOP_REASON_DRIVER,
693 false);
c2d1560a
JB		 694}
695EXPORT_SYMBOL(ieee80211_wake_queues);
dabeb344 696
26da23b6
LC		 697static unsigned int
698ieee80211_get_vif_queues(struct ieee80211_local *local,
699 struct ieee80211_sub_if_data *sdata)
39ecc01d 700{
26da23b6 701 unsigned int queues;
39ecc01d 702
30686bf7 703 if (sdata && ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) {
39ecc01d
JB		 704 int ac;
705
706 queues = 0;
707
708 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
709 queues |= BIT(sdata->vif.hw_queue[ac]);
710 if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE)
711 queues |= BIT(sdata->vif.cab_queue);
712 } else {
713 /* all queues */
714 queues = BIT(local->hw.queues) - 1;
715 }
716
26da23b6
LC		 717 return queues;
718}
719
4f9610d5
LK		 720void __ieee80211_flush_queues(struct ieee80211_local *local,
721 struct ieee80211_sub_if_data *sdata,
3b24f4c6 722 unsigned int queues, bool drop)
26da23b6 723{
26da23b6
LC		 724 if (!local->ops->flush)
725 return;
726
4f9610d5
LK		 727 /*
728 * If no queue was set, or if the HW doesn't support
729 * IEEE80211_HW_QUEUE_CONTROL - flush all queues
730 */
30686bf7 731 if (!queues || !ieee80211_hw_check(&local->hw, QUEUE_CONTROL))
4f9610d5 732 queues = ieee80211_get_vif_queues(local, sdata);
26da23b6 733
59f48fe2 734 ieee80211_stop_queues_by_reason(&local->hw, queues,
cca07b00
LC		 735 IEEE80211_QUEUE_STOP_REASON_FLUSH,
736 false);
445ea4e8 737
3b24f4c6 738 drv_flush(local, sdata, queues, drop);
445ea4e8 739
59f48fe2 740 ieee80211_wake_queues_by_reason(&local->hw, queues,
cca07b00
LC		 741 IEEE80211_QUEUE_STOP_REASON_FLUSH,
742 false);
39ecc01d
JB		 743}
744
4f9610d5 745void ieee80211_flush_queues(struct ieee80211_local *local,
3b24f4c6 746 struct ieee80211_sub_if_data *sdata, bool drop)
4f9610d5 747{
3b24f4c6 748 __ieee80211_flush_queues(local, sdata, 0, drop);
4f9610d5
LK		 749}
750
26da23b6
LC		 751void ieee80211_stop_vif_queues(struct ieee80211_local *local,
752 struct ieee80211_sub_if_data *sdata,
753 enum queue_stop_reason reason)
754{
755 ieee80211_stop_queues_by_reason(&local->hw,
756 ieee80211_get_vif_queues(local, sdata),
757 reason, true);
758}
759
760void ieee80211_wake_vif_queues(struct ieee80211_local *local,
761 struct ieee80211_sub_if_data *sdata,
762 enum queue_stop_reason reason)
763{
764 ieee80211_wake_queues_by_reason(&local->hw,
765 ieee80211_get_vif_queues(local, sdata),
766 reason, true);
767}
768
3384d757
AN		 769static void __iterate_interfaces(struct ieee80211_local *local,
770 u32 iter_flags,
771 void (*iterator)(void *data, u8 *mac,
772 struct ieee80211_vif *vif),
773 void *data)
dabeb344 774{
dabeb344 775 struct ieee80211_sub_if_data *sdata;
3384d757 776 bool active_only = iter_flags & IEEE80211_IFACE_ITER_ACTIVE;
dabeb344 777
c7c71066 778 list_for_each_entry_rcu(sdata, &local->interfaces, list) {
2f561feb 779 switch (sdata->vif.type) {
05c914fe 780 case NL80211_IFTYPE_MONITOR:
d8212184 781 if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))
31eba5bc
FF		 782 continue;
783 break;
05c914fe 784 case NL80211_IFTYPE_AP_VLAN:
2f561feb 785 continue;
2ca27bcf 786 default:
2f561feb
ID		 787 break;
788 }
8b2c9824 789 if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) &&
3384d757 790 active_only && !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
8b2c9824 791 continue;
265a0708
BG		 792 if ((iter_flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) &&
793 !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
794 continue;
3384d757 795 if (ieee80211_sdata_running(sdata) || !active_only)
47846c9b 796 iterator(data, sdata->vif.addr,
2f561feb
ID		 797 &sdata->vif);
798 }
799
c7c71066
JB		 800 sdata = rcu_dereference_check(local->monitor_sdata,
801 lockdep_is_held(&local->iflist_mtx) ||
6dd23603 802 lockdep_is_held(&local->hw.wiphy->mtx));
8b2c9824 803 if (sdata &&
3384d757 804 (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || !active_only ||
8b2c9824 805 sdata->flags & IEEE80211_SDATA_IN_DRIVER))
685fb72b 806 iterator(data, sdata->vif.addr, &sdata->vif);
c7c71066 807}
685fb72b 808
3384d757 809void ieee80211_iterate_interfaces(
c7c71066
JB		 810 struct ieee80211_hw *hw, u32 iter_flags,
811 void (*iterator)(void *data, u8 *mac,
812 struct ieee80211_vif *vif),
813 void *data)
814{
815 struct ieee80211_local *local = hw_to_local(hw);
816
817 mutex_lock(&local->iflist_mtx);
3384d757 818 __iterate_interfaces(local, iter_flags, iterator, data);
c771c9d8 819 mutex_unlock(&local->iflist_mtx);
2f561feb 820}
3384d757 821EXPORT_SYMBOL_GPL(ieee80211_iterate_interfaces);
2f561feb
ID		 822
823void ieee80211_iterate_active_interfaces_atomic(
8b2c9824 824 struct ieee80211_hw *hw, u32 iter_flags,
2f561feb
ID		 825 void (*iterator)(void *data, u8 *mac,
826 struct ieee80211_vif *vif),
827 void *data)
828{
829 struct ieee80211_local *local = hw_to_local(hw);
2f561feb 830
e38bad47 831 rcu_read_lock();
3384d757
AN		 832 __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE,
833 iterator, data);
c7c71066
JB		 834 rcu_read_unlock();
835}
836EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
dabeb344 837
a05829a7 838void ieee80211_iterate_active_interfaces_mtx(
c7c71066
JB		 839 struct ieee80211_hw *hw, u32 iter_flags,
840 void (*iterator)(void *data, u8 *mac,
841 struct ieee80211_vif *vif),
842 void *data)
843{
844 struct ieee80211_local *local = hw_to_local(hw);
e38bad47 845
a05829a7 846 lockdep_assert_wiphy(hw->wiphy);
685fb72b 847
3384d757
AN		 848 __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE,
849 iterator, data);
dabeb344 850}
a05829a7 851EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_mtx);
37ffc8da 852
0fc1e049
AN		 853static void __iterate_stations(struct ieee80211_local *local,
854 void (*iterator)(void *data,
855 struct ieee80211_sta *sta),
856 void *data)
857{
858 struct sta_info *sta;
859
860 list_for_each_entry_rcu(sta, &local->sta_list, list) {
861 if (!sta->uploaded)
862 continue;
863
864 iterator(data, &sta->sta);
865 }
866}
867
acb99b9b
MB		 868void ieee80211_iterate_stations(struct ieee80211_hw *hw,
869 void (*iterator)(void *data,
870 struct ieee80211_sta *sta),
871 void *data)
872{
873 struct ieee80211_local *local = hw_to_local(hw);
874
875 mutex_lock(&local->sta_mtx);
876 __iterate_stations(local, iterator, data);
877 mutex_unlock(&local->sta_mtx);
878}
879EXPORT_SYMBOL_GPL(ieee80211_iterate_stations);
880
0fc1e049
AN		 881void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw,
882 void (*iterator)(void *data,
883 struct ieee80211_sta *sta),
884 void *data)
885{
886 struct ieee80211_local *local = hw_to_local(hw);
887
888 rcu_read_lock();
889 __iterate_stations(local, iterator, data);
890 rcu_read_unlock();
891}
892EXPORT_SYMBOL_GPL(ieee80211_iterate_stations_atomic);
893
ad7e718c
JB		 894struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev)
895{
896 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
897
898 if (!ieee80211_sdata_running(sdata) ||
899 !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
900 return NULL;
901 return &sdata->vif;
902}
903EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif);
904
dc5a1ad7
EG		 905struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif)
906{
6513e98e
JB		 907 if (!vif)
908 return NULL;
909
f30386a8 910 return &vif_to_sdata(vif)->wdev;
dc5a1ad7
EG		 911}
912EXPORT_SYMBOL_GPL(ieee80211_vif_to_wdev);
913
42935eca
LR		 914/*
915 * Nothing should have been stuffed into the workqueue during
4afaff17
EG		 916 * the suspend->resume cycle. Since we can't check each caller
917 * of this function if we are already quiescing / suspended,
918 * check here and don't WARN since this can actually happen when
919 * the rx path (for example) is racing against __ieee80211_suspend
920 * and suspending / quiescing was set after the rx path checked
921 * them.
42935eca
LR		 922 */
923static bool ieee80211_can_queue_work(struct ieee80211_local *local)
924{
4afaff17
EG		 925 if (local->quiescing || (local->suspended && !local->resuming)) {
926 pr_warn("queueing ieee80211 work while going to suspend\n");
ceb99fe0 927 return false;
4afaff17 928 }
42935eca
LR		 929
930 return true;
931}
932
933void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work)
934{
935 struct ieee80211_local *local = hw_to_local(hw);
936
937 if (!ieee80211_can_queue_work(local))
938 return;
939
940 queue_work(local->workqueue, work);
941}
942EXPORT_SYMBOL(ieee80211_queue_work);
943
944void ieee80211_queue_delayed_work(struct ieee80211_hw *hw,
945 struct delayed_work *dwork,
946 unsigned long delay)
947{
948 struct ieee80211_local *local = hw_to_local(hw);
949
950 if (!ieee80211_can_queue_work(local))
951 return;
952
953 queue_delayed_work(local->workqueue, dwork, delay);
954}
955EXPORT_SYMBOL(ieee80211_queue_delayed_work);
956
ea5cba26
JB		 957static void
958ieee80211_parse_extension_element(u32 *crc,
959 const struct element *elem,
960 struct ieee802_11_elems *elems,
961 struct ieee80211_elems_parse_params *params)
e4d005b8
JB		 962{
963 const void *data = elem->data + 1;
768c0b19
JB		 964 u8 len;
965
966 if (!elem->datalen)
967 return;
968
969 len = elem->datalen - 1;
e4d005b8
JB		 970
971 switch (elem->data[0]) {
972 case WLAN_EID_EXT_HE_MU_EDCA:
652e8363 973 if (len >= sizeof(*elems->mu_edca_param_set)) {
e4d005b8
JB		 974 elems->mu_edca_param_set = data;
975 if (crc)
976 *crc = crc32_be(*crc, (void *)elem,
977 elem->datalen + 2);
978 }
979 break;
980 case WLAN_EID_EXT_HE_CAPABILITY:
bd4e4d62
JB		 981 if (ieee80211_he_capa_size_ok(data, len)) {
982 elems->he_cap = data;
983 elems->he_cap_len = len;
984 }
e4d005b8
JB		 985 break;
986 case WLAN_EID_EXT_HE_OPERATION:
987 if (len >= sizeof(*elems->he_operation) &&
0f7e90fa 988 len >= ieee80211_he_oper_size(data) - 1) {
660d81da
JB		 989 if (crc)
990 *crc = crc32_be(*crc, (void *)elem,
991 elem->datalen + 2);
e4d005b8 992 elems->he_operation = data;
660d81da 993 }
e4d005b8
JB		 994 break;
995 case WLAN_EID_EXT_UORA:
652e8363 996 if (len >= 1)
e4d005b8
JB		 997 elems->uora_element = data;
998 break;
999 case WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME:
1000 if (len == 3)
1001 elems->max_channel_switch_time = data;
1002 break;
1003 case WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION:
652e8363 1004 if (len >= sizeof(*elems->mbssid_config_ie))
e4d005b8
JB		 1005 elems->mbssid_config_ie = data;
1006 break;
1007 case WLAN_EID_EXT_HE_SPR:
1008 if (len >= sizeof(*elems->he_spr) &&
1009 len >= ieee80211_he_spr_size(data))
1010 elems->he_spr = data;
1011 break;
a6cf28e0 1012 case WLAN_EID_EXT_HE_6GHZ_CAPA:
652e8363 1013 if (len >= sizeof(*elems->he_6ghz_capa))
a6cf28e0
RM		 1014 elems->he_6ghz_capa = data;
1015 break;
f0e6bea8
IP		 1016 case WLAN_EID_EXT_EHT_CAPABILITY:
1017 if (ieee80211_eht_capa_size_ok(elems->he_cap,
ea5cba26
JB		 1018 data, len,
1019 params->from_ap)) {
f0e6bea8
IP		 1020 elems->eht_cap = data;
1021 elems->eht_cap_len = len;
1022 }
1023 break;
1024 case WLAN_EID_EXT_EHT_OPERATION:
1025 if (ieee80211_eht_oper_size_ok(data, len))
1026 elems->eht_operation = data;
1027 break;
425f4b5f
JB		 1028 case WLAN_EID_EXT_EHT_MULTI_LINK:
1029 if (ieee80211_mle_size_ok(data, len))
1030 elems->multi_link = (void *)data;
1031 break;
e4d005b8
JB		 1032 }
1033}
1034
78ac51f8 1035static u32
fd17bf04
JB		 1036_ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params,
1037 struct ieee802_11_elems *elems,
1038 const struct element *check_inherit)
dd76986b 1039{
671042a4 1040 const struct element *elem;
fd17bf04 1041 bool calc_crc = params->filter != 0;
fcff4f10 1042 DECLARE_BITMAP(seen_elems, 256);
fd17bf04 1043 u32 crc = params->crc;
b2e506bf 1044 const u8 *ie;
dd76986b 1045
fcff4f10 1046 bitmap_zero(seen_elems, 256);
dd76986b 1047
fd17bf04 1048 for_each_element(elem, params->start, params->len) {
fcff4f10 1049 bool elem_parse_failed;
c17e28d1
JB		 1050 u8 id = elem->id;
1051 u8 elen = elem->datalen;
1052 const u8 *pos = elem->data;
fcff4f10 1053
671042a4
SS		 1054 if (check_inherit &&
1055 !cfg80211_is_element_inherited(elem,
1056 check_inherit))
1057 continue;
1058
9690fb16
JB		 1059 switch (id) {
1060 case WLAN_EID_SSID:
1061 case WLAN_EID_SUPP_RATES:
1062 case WLAN_EID_FH_PARAMS:
1063 case WLAN_EID_DS_PARAMS:
1064 case WLAN_EID_CF_PARAMS:
1065 case WLAN_EID_TIM:
1066 case WLAN_EID_IBSS_PARAMS:
1067 case WLAN_EID_CHALLENGE:
1068 case WLAN_EID_RSN:
1069 case WLAN_EID_ERP_INFO:
1070 case WLAN_EID_EXT_SUPP_RATES:
1071 case WLAN_EID_HT_CAPABILITY:
1072 case WLAN_EID_HT_OPERATION:
1073 case WLAN_EID_VHT_CAPABILITY:
1074 case WLAN_EID_VHT_OPERATION:
1075 case WLAN_EID_MESH_ID:
1076 case WLAN_EID_MESH_CONFIG:
1077 case WLAN_EID_PEER_MGMT:
1078 case WLAN_EID_PREQ:
1079 case WLAN_EID_PREP:
1080 case WLAN_EID_PERR:
1081 case WLAN_EID_RANN:
1082 case WLAN_EID_CHANNEL_SWITCH:
1083 case WLAN_EID_EXT_CHANSWITCH_ANN:
1084 case WLAN_EID_COUNTRY:
1085 case WLAN_EID_PWR_CONSTRAINT:
1086 case WLAN_EID_TIMEOUT_INTERVAL:
85220d71 1087 case WLAN_EID_SECONDARY_CHANNEL_OFFSET:
b2e506bf 1088 case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
8f2535b9 1089 case WLAN_EID_CHAN_SWITCH_PARAM:
9041c1fa 1090 case WLAN_EID_EXT_CAPABILITY:
53837584
AN		 1091 case WLAN_EID_CHAN_SWITCH_TIMING:
1092 case WLAN_EID_LINK_ID:
e38a017b 1093 case WLAN_EID_BSS_MAX_IDLE_PERIOD:
c0058df7 1094 case WLAN_EID_RSNX:
cd418ba6
TP		 1095 case WLAN_EID_S1G_BCN_COMPAT:
1096 case WLAN_EID_S1G_CAPABILITIES:
1097 case WLAN_EID_S1G_OPERATION:
1d00ce80 1098 case WLAN_EID_AID_RESPONSE:
cd418ba6 1099 case WLAN_EID_S1G_SHORT_BCN_INTERVAL:
b2e506bf
JB		 1100 /*
1101 * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible
1102 * that if the content gets bigger it might be needed more than once
1103 */
9690fb16
JB		 1104 if (test_bit(id, seen_elems)) {
1105 elems->parse_error = true;
9690fb16
JB		 1106 continue;
1107 }
1108 break;
fcff4f10 1109 }
dd76986b 1110
fd17bf04 1111 if (calc_crc && id < 64 && (params->filter & (1ULL << id)))
dd76986b
JB		 1112 crc = crc32_be(crc, pos - 2, elen + 2);
1113
fcff4f10
PS		 1114 elem_parse_failed = false;
1115
dd76986b 1116 switch (id) {
53837584 1117 case WLAN_EID_LINK_ID:
652e8363 1118 if (elen + 2 < sizeof(struct ieee80211_tdls_lnkie)) {
53837584
AN		 1119 elem_parse_failed = true;
1120 break;
1121 }
1122 elems->lnk_id = (void *)(pos - 2);
1123 break;
1124 case WLAN_EID_CHAN_SWITCH_TIMING:
652e8363 1125 if (elen < sizeof(struct ieee80211_ch_switch_timing)) {
53837584
AN		 1126 elem_parse_failed = true;
1127 break;
1128 }
1129 elems->ch_sw_timing = (void *)pos;
1130 break;
9041c1fa
AN		 1131 case WLAN_EID_EXT_CAPABILITY:
1132 elems->ext_capab = pos;
1133 elems->ext_capab_len = elen;
1134 break;
dd76986b
JB		 1135 case WLAN_EID_SSID:
1136 elems->ssid = pos;
1137 elems->ssid_len = elen;
1138 break;
1139 case WLAN_EID_SUPP_RATES:
1140 elems->supp_rates = pos;
1141 elems->supp_rates_len = elen;
1142 break;
dd76986b 1143 case WLAN_EID_DS_PARAMS:
1cd8e88e
JB		 1144 if (elen >= 1)
1145 elems->ds_params = pos;
1146 else
1147 elem_parse_failed = true;
dd76986b 1148 break;
dd76986b
JB		 1149 case WLAN_EID_TIM:
1150 if (elen >= sizeof(struct ieee80211_tim_ie)) {
1151 elems->tim = (void *)pos;
1152 elems->tim_len = elen;
fcff4f10
PS		 1153 } else
1154 elem_parse_failed = true;
dd76986b 1155 break;
dd76986b
JB		 1156 case WLAN_EID_VENDOR_SPECIFIC:
1157 if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 &&
1158 pos[2] == 0xf2) {
1159 /* Microsoft OUI (00:50:F2) */
1160
1161 if (calc_crc)
1162 crc = crc32_be(crc, pos - 2, elen + 2);
1163
441a33ba 1164 if (elen >= 5 && pos[3] == 2) {
dd76986b
JB		 1165 /* OUI Type 2 - WMM IE */
1166 if (pos[4] == 0) {
1167 elems->wmm_info = pos;
1168 elems->wmm_info_len = elen;
1169 } else if (pos[4] == 1) {
1170 elems->wmm_param = pos;
1171 elems->wmm_param_len = elen;
1172 }
1173 }
1174 }
1175 break;
1176 case WLAN_EID_RSN:
1177 elems->rsn = pos;
1178 elems->rsn_len = elen;
1179 break;
1180 case WLAN_EID_ERP_INFO:
1946bed9
JB		 1181 if (elen >= 1)
1182 elems->erp_info = pos;
1183 else
1184 elem_parse_failed = true;
dd76986b
JB		 1185 break;
1186 case WLAN_EID_EXT_SUPP_RATES:
1187 elems->ext_supp_rates = pos;
1188 elems->ext_supp_rates_len = elen;
1189 break;
1190 case WLAN_EID_HT_CAPABILITY:
1191 if (elen >= sizeof(struct ieee80211_ht_cap))
1192 elems->ht_cap_elem = (void *)pos;
fcff4f10
PS		 1193 else
1194 elem_parse_failed = true;
dd76986b 1195 break;
074d46d1
JB		 1196 case WLAN_EID_HT_OPERATION:
1197 if (elen >= sizeof(struct ieee80211_ht_operation))
1198 elems->ht_operation = (void *)pos;
fcff4f10
PS		 1199 else
1200 elem_parse_failed = true;
dd76986b 1201 break;
818255ea
MP		 1202 case WLAN_EID_VHT_CAPABILITY:
1203 if (elen >= sizeof(struct ieee80211_vht_cap))
1204 elems->vht_cap_elem = (void *)pos;
1205 else
1206 elem_parse_failed = true;
1207 break;
1208 case WLAN_EID_VHT_OPERATION:
a04564c9 1209 if (elen >= sizeof(struct ieee80211_vht_operation)) {
818255ea 1210 elems->vht_operation = (void *)pos;
a04564c9
JB		 1211 if (calc_crc)
1212 crc = crc32_be(crc, pos - 2, elen + 2);
1213 break;
1214 }
1215 elem_parse_failed = true;
818255ea 1216 break;
bee7f586 1217 case WLAN_EID_OPMODE_NOTIF:
a04564c9 1218 if (elen > 0) {
bee7f586 1219 elems->opmode_notif = pos;
a04564c9
JB		 1220 if (calc_crc)
1221 crc = crc32_be(crc, pos - 2, elen + 2);
1222 break;
1223 }
1224 elem_parse_failed = true;
bee7f586 1225 break;
dd76986b
JB		 1226 case WLAN_EID_MESH_ID:
1227 elems->mesh_id = pos;
1228 elems->mesh_id_len = elen;
1229 break;
1230 case WLAN_EID_MESH_CONFIG:
1231 if (elen >= sizeof(struct ieee80211_meshconf_ie))
1232 elems->mesh_config = (void *)pos;
fcff4f10
PS		 1233 else
1234 elem_parse_failed = true;
dd76986b
JB		 1235 break;
1236 case WLAN_EID_PEER_MGMT:
1237 elems->peering = pos;
1238 elems->peering_len = elen;
1239 break;
3f52b7e3
MP		 1240 case WLAN_EID_MESH_AWAKE_WINDOW:
1241 if (elen >= 2)
1242 elems->awake_window = (void *)pos;
1243 break;
dd76986b
JB		 1244 case WLAN_EID_PREQ:
1245 elems->preq = pos;
1246 elems->preq_len = elen;
1247 break;
1248 case WLAN_EID_PREP:
1249 elems->prep = pos;
1250 elems->prep_len = elen;
1251 break;
1252 case WLAN_EID_PERR:
1253 elems->perr = pos;
1254 elems->perr_len = elen;
1255 break;
1256 case WLAN_EID_RANN:
1257 if (elen >= sizeof(struct ieee80211_rann_ie))
1258 elems->rann = (void *)pos;
fcff4f10
PS		 1259 else
1260 elem_parse_failed = true;
dd76986b
JB		 1261 break;
1262 case WLAN_EID_CHANNEL_SWITCH:
5bc1420b
JB		 1263 if (elen != sizeof(struct ieee80211_channel_sw_ie)) {
1264 elem_parse_failed = true;
1265 break;
1266 }
1267 elems->ch_switch_ie = (void *)pos;
dd76986b 1268 break;
b4f286a1
JB		 1269 case WLAN_EID_EXT_CHANSWITCH_ANN:
1270 if (elen != sizeof(struct ieee80211_ext_chansw_ie)) {
1271 elem_parse_failed = true;
1272 break;
1273 }
1274 elems->ext_chansw_ie = (void *)pos;
1275 break;
85220d71
JB		 1276 case WLAN_EID_SECONDARY_CHANNEL_OFFSET:
1277 if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) {
1278 elem_parse_failed = true;
1279 break;
1280 }
1281 elems->sec_chan_offs = (void *)pos;
1282 break;
8f2535b9 1283 case WLAN_EID_CHAN_SWITCH_PARAM:
652e8363 1284 if (elen <
8f2535b9
CYY		 1285 sizeof(*elems->mesh_chansw_params_ie)) {
1286 elem_parse_failed = true;
1287 break;
1288 }
1289 elems->mesh_chansw_params_ie = (void *)pos;
1290 break;
b2e506bf 1291 case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
fd17bf04 1292 if (!params->action ||
652e8363 1293 elen < sizeof(*elems->wide_bw_chansw_ie)) {
b2e506bf
JB		 1294 elem_parse_failed = true;
1295 break;
1296 }
1297 elems->wide_bw_chansw_ie = (void *)pos;
1298 break;
1299 case WLAN_EID_CHANNEL_SWITCH_WRAPPER:
fd17bf04 1300 if (params->action) {
b2e506bf
JB		 1301 elem_parse_failed = true;
1302 break;
1303 }
1304 /*
1305 * This is a bit tricky, but as we only care about
1306 * the wide bandwidth channel switch element, so
1307 * just parse it out manually.
1308 */
1309 ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH,
1310 pos, elen);
1311 if (ie) {
652e8363 1312 if (ie[1] >= sizeof(*elems->wide_bw_chansw_ie))
b2e506bf
JB		 1313 elems->wide_bw_chansw_ie =
1314 (void *)(ie + 2);
1315 else
1316 elem_parse_failed = true;
1317 }
1318 break;
dd76986b
JB		 1319 case WLAN_EID_COUNTRY:
1320 elems->country_elem = pos;
1321 elems->country_elem_len = elen;
1322 break;
1323 case WLAN_EID_PWR_CONSTRAINT:
761a48d2
JB		 1324 if (elen != 1) {
1325 elem_parse_failed = true;
1326 break;
1327 }
dd76986b 1328 elems->pwr_constr_elem = pos;
dd76986b 1329 break;
c8d65917
SG		 1330 case WLAN_EID_CISCO_VENDOR_SPECIFIC:
1331 /* Lots of different options exist, but we only care
1332 * about the Dynamic Transmit Power Control element.
1333 * First check for the Cisco OUI, then for the DTPC
1334 * tag (0x00).
1335 */
1336 if (elen < 4) {
1337 elem_parse_failed = true;
1338 break;
1339 }
1340
1341 if (pos[0] != 0x00 || pos[1] != 0x40 ||
1342 pos[2] != 0x96 || pos[3] != 0x00)
1343 break;
1344
1345 if (elen != 6) {
1346 elem_parse_failed = true;
1347 break;
1348 }
1349
1350 if (calc_crc)
1351 crc = crc32_be(crc, pos - 2, elen + 2);
1352
1353 elems->cisco_dtpc_elem = pos;
1354 break;
2aa485e1 1355 case WLAN_EID_ADDBA_EXT:
652e8363 1356 if (elen < sizeof(struct ieee80211_addba_ext_ie)) {
2aa485e1
JC		 1357 elem_parse_failed = true;
1358 break;
1359 }
1360 elems->addba_ext_ie = (void *)pos;
1361 break;
dd76986b 1362 case WLAN_EID_TIMEOUT_INTERVAL:
79ba1d89
JB		 1363 if (elen >= sizeof(struct ieee80211_timeout_interval_ie))
1364 elems->timeout_int = (void *)pos;
1365 else
1366 elem_parse_failed = true;
dd76986b 1367 break;
e38a017b
AS		 1368 case WLAN_EID_BSS_MAX_IDLE_PERIOD:
1369 if (elen >= sizeof(*elems->max_idle_period_ie))
1370 elems->max_idle_period_ie = (void *)pos;
1371 break;
c0058df7
ST		 1372 case WLAN_EID_RSNX:
1373 elems->rsnx = pos;
1374 elems->rsnx_len = elen;
1375 break;
b0345850
WG		 1376 case WLAN_EID_TX_POWER_ENVELOPE:
1377 if (elen < 1 ||
1378 elen > sizeof(struct ieee80211_tx_pwr_env))
1379 break;
1380
1381 if (elems->tx_pwr_env_num >= ARRAY_SIZE(elems->tx_pwr_env))
1382 break;
1383
1384 elems->tx_pwr_env[elems->tx_pwr_env_num] = (void *)pos;
1385 elems->tx_pwr_env_len[elems->tx_pwr_env_num] = elen;
1386 elems->tx_pwr_env_num++;
1387 break;
41cbb0f5 1388 case WLAN_EID_EXTENSION:
e4d005b8
JB		 1389 ieee80211_parse_extension_element(calc_crc ?
1390 &crc : NULL,
ea5cba26 1391 elem, elems, params);
41cbb0f5 1392 break;
cd418ba6 1393 case WLAN_EID_S1G_CAPABILITIES:
652e8363 1394 if (elen >= sizeof(*elems->s1g_capab))
cd418ba6
TP		 1395 elems->s1g_capab = (void *)pos;
1396 else
1397 elem_parse_failed = true;
1398 break;
1399 case WLAN_EID_S1G_OPERATION:
1400 if (elen == sizeof(*elems->s1g_oper))
1401 elems->s1g_oper = (void *)pos;
1402 else
1403 elem_parse_failed = true;
1404 break;
1405 case WLAN_EID_S1G_BCN_COMPAT:
1406 if (elen == sizeof(*elems->s1g_bcn_compat))
1407 elems->s1g_bcn_compat = (void *)pos;
1408 else
1409 elem_parse_failed = true;
1410 break;
1d00ce80
TP		 1411 case WLAN_EID_AID_RESPONSE:
1412 if (elen == sizeof(struct ieee80211_aid_response_ie))
1413 elems->aid_resp = (void *)pos;
1414 else
1415 elem_parse_failed = true;
1416 break;
dd76986b
JB		 1417 default:
1418 break;
1419 }
1420
fcff4f10
PS		 1421 if (elem_parse_failed)
1422 elems->parse_error = true;
1423 else
5df45690 1424 __set_bit(id, seen_elems);
dd76986b
JB		 1425 }
1426
fd17bf04 1427 if (!for_each_element_completed(elem, params->start, params->len))
fcff4f10
PS		 1428 elems->parse_error = true;
1429
dd76986b
JB		 1430 return crc;
1431}
1432
5023b14c
SS		 1433static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len,
1434 struct ieee802_11_elems *elems,
38c6aa29 1435 struct cfg80211_bss *bss,
5809a5d5 1436 u8 *nontransmitted_profile)
671042a4
SS		 1437{
1438 const struct element *elem, *sub;
5023b14c
SS		 1439 size_t profile_len = 0;
1440 bool found = false;
671042a4 1441
38c6aa29 1442 if (!bss || !bss->transmitted_bss)
5023b14c 1443 return profile_len;
671042a4
SS		 1444
1445 for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, start, len) {
1446 if (elem->datalen < 2)
1447 continue;
1448
1449 for_each_element(sub, elem->data + 1, elem->datalen - 1) {
1450 u8 new_bssid[ETH_ALEN];
1451 const u8 *index;
1452
1453 if (sub->id != 0 || sub->datalen < 4) {
1454 /* not a valid BSS profile */
1455 continue;
1456 }
1457
1458 if (sub->data[0] != WLAN_EID_NON_TX_BSSID_CAP ||
1459 sub->data[1] != 2) {
1460 /* The first element of the
1461 * Nontransmitted BSSID Profile is not
1462 * the Nontransmitted BSSID Capability
1463 * element.
1464 */
1465 continue;
1466 }
1467
5809a5d5 1468 memset(nontransmitted_profile, 0, len);
5023b14c
SS		 1469 profile_len = cfg80211_merge_profile(start, len,
1470 elem,
1471 sub,
1472 nontransmitted_profile,
1473 len);
1474
671042a4
SS		 1475 /* found a Nontransmitted BSSID Profile */
1476 index = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX,
5809a5d5 1477 nontransmitted_profile,
5023b14c 1478 profile_len);
671042a4
SS		 1479 if (!index || index[1] < 1 || index[2] == 0) {
1480 /* Invalid MBSSID Index element */
1481 continue;
1482 }
1483
38c6aa29 1484 cfg80211_gen_new_bssid(bss->transmitted_bss->bssid,
671042a4
SS		 1485 elem->data[0],
1486 index[2],
1487 new_bssid);
38c6aa29 1488 if (ether_addr_equal(new_bssid, bss->bssid)) {
5023b14c 1489 found = true;
671042a4
SS		 1490 elems->bssid_index_len = index[1];
1491 elems->bssid_index = (void *)&index[2];
1492 break;
1493 }
1494 }
1495 }
5023b14c
SS		 1496
1497 return found ? profile_len : 0;
671042a4
SS		 1498}
1499
fd17bf04
JB		 1500struct ieee802_11_elems *
1501ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params)
78ac51f8 1502{
5d24828d 1503 struct ieee802_11_elems *elems;
671042a4 1504 const struct element *non_inherit = NULL;
5023b14c
SS		 1505 u8 *nontransmitted_profile;
1506 int nontransmitted_profile_len = 0;
671042a4 1507
5d24828d
JB		 1508 elems = kzalloc(sizeof(*elems), GFP_ATOMIC);
1509 if (!elems)
1510 return NULL;
fd17bf04
JB		 1511 elems->ie_start = params->start;
1512 elems->total_len = params->len;
78ac51f8 1513
fd17bf04 1514 nontransmitted_profile = kmalloc(params->len, GFP_ATOMIC);
5023b14c
SS		 1515 if (nontransmitted_profile) {
1516 nontransmitted_profile_len =
fd17bf04 1517 ieee802_11_find_bssid_profile(params->start, params->len,
38c6aa29 1518 elems, params->bss,
5809a5d5 1519 nontransmitted_profile);
671042a4
SS		 1520 non_inherit =
1521 cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE,
5023b14c
SS		 1522 nontransmitted_profile,
1523 nontransmitted_profile_len);
1524 }
671042a4 1525
fd17bf04 1526 elems->crc = _ieee802_11_parse_elems_full(params, elems, non_inherit);
78ac51f8
SS		 1527
1528 /* Override with nontransmitted profile, if found */
fd17bf04
JB		 1529 if (nontransmitted_profile_len) {
1530 struct ieee80211_elems_parse_params sub = {
1531 .start = nontransmitted_profile,
1532 .len = nontransmitted_profile_len,
1533 .action = params->action,
425f4b5f 1534 .link_id = params->link_id,
fd17bf04
JB		 1535 };
1536
1537 _ieee802_11_parse_elems_full(&sub, elems, NULL);
1538 }
78ac51f8
SS		 1539
1540 if (elems->tim && !elems->parse_error) {
1541 const struct ieee80211_tim_ie *tim_ie = elems->tim;
1542
1543 elems->dtim_period = tim_ie->dtim_period;
1544 elems->dtim_count = tim_ie->dtim_count;
1545 }
1546
1547 /* Override DTIM period and count if needed */
1548 if (elems->bssid_index &&
1549 elems->bssid_index_len >=
1550 offsetofend(struct ieee80211_bssid_index, dtim_period))
1551 elems->dtim_period = elems->bssid_index->dtim_period;
1552
1553 if (elems->bssid_index &&
1554 elems->bssid_index_len >=
1555 offsetofend(struct ieee80211_bssid_index, dtim_count))
1556 elems->dtim_count = elems->bssid_index->dtim_count;
1557
5023b14c
SS		 1558 kfree(nontransmitted_profile);
1559
5d24828d 1560 return elems;
78ac51f8
SS		 1561}
1562
e552af05
HD		 1563void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
1564 struct ieee80211_tx_queue_params
1565 *qparam, int ac)
1566{
1567 struct ieee80211_chanctx_conf *chanctx_conf;
1568 const struct ieee80211_reg_rule *rrule;
38cb87ee 1569 const struct ieee80211_wmm_ac *wmm_ac;
e552af05
HD		 1570 u16 center_freq = 0;
1571
1572 if (sdata->vif.type != NL80211_IFTYPE_AP &&
1573 sdata->vif.type != NL80211_IFTYPE_STATION)
1574 return;
1575
1576 rcu_read_lock();
d0a9123e 1577 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
e552af05
HD		 1578 if (chanctx_conf)
1579 center_freq = chanctx_conf->def.chan->center_freq;
1580
1581 if (!center_freq) {
1582 rcu_read_unlock();
1583 return;
1584 }
1585
1586 rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq));
1587
38cb87ee 1588 if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) {
e552af05
HD		 1589 rcu_read_unlock();
1590 return;
1591 }
1592
1593 if (sdata->vif.type == NL80211_IFTYPE_AP)
38cb87ee 1594 wmm_ac = &rrule->wmm_rule.ap[ac];
e552af05 1595 else
38cb87ee 1596 wmm_ac = &rrule->wmm_rule.client[ac];
e552af05
HD		 1597 qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min);
1598 qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max);
1599 qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn);
abd76d25 1600 qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32);
e552af05
HD		 1601 rcu_read_unlock();
1602}
1603
b3e2130b 1604void ieee80211_set_wmm_default(struct ieee80211_link_data *link,
cec66283 1605 bool bss_notify, bool enable_qos)
5825fe10 1606{
b3e2130b 1607 struct ieee80211_sub_if_data *sdata = link->sdata;
5825fe10
JB		 1608 struct ieee80211_local *local = sdata->local;
1609 struct ieee80211_tx_queue_params qparam;
55de908a 1610 struct ieee80211_chanctx_conf *chanctx_conf;
54bcbc69 1611 int ac;
cec66283 1612 bool use_11b;
239281f8 1613 bool is_ocb; /* Use another EDCA parameters if dot11OCBActivated=true */
aa837e1d 1614 int aCWmin, aCWmax;
5825fe10
JB		 1615
1616 if (!local->ops->conf_tx)
1617 return;
1618
54bcbc69
JB		 1619 if (local->hw.queues < IEEE80211_NUM_ACS)
1620 return;
1621
5825fe10
JB		 1622 memset(&qparam, 0, sizeof(qparam));
1623
55de908a 1624 rcu_read_lock();
b3e2130b 1625 chanctx_conf = rcu_dereference(link->conf->chanctx_conf);
55de908a 1626 use_11b = (chanctx_conf &&
57fbcce3 1627 chanctx_conf->def.chan->band == NL80211_BAND_2GHZ) &&
39eac2de 1628 !link->operating_11g_mode;
55de908a 1629 rcu_read_unlock();
5825fe10 1630
239281f8
RL		 1631 is_ocb = (sdata->vif.type == NL80211_IFTYPE_OCB);
1632
1f4ffde8
FZ		 1633 /* Set defaults according to 802.11-2007 Table 7-37 */
1634 aCWmax = 1023;
1635 if (use_11b)
1636 aCWmin = 31;
1637 else
1638 aCWmin = 15;
1639
1640 /* Confiure old 802.11b/g medium access rules. */
1641 qparam.cw_max = aCWmax;
1642 qparam.cw_min = aCWmin;
1643 qparam.txop = 0;
1644 qparam.aifs = 2;
aa837e1d 1645
1f4ffde8
FZ		 1646 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
1647 /* Update if QoS is enabled. */
a8ce8544
SG		 1648 if (enable_qos) {
1649 switch (ac) {
1650 case IEEE80211_AC_BK:
1651 qparam.cw_max = aCWmax;
1652 qparam.cw_min = aCWmin;
1653 qparam.txop = 0;
239281f8
RL		 1654 if (is_ocb)
1655 qparam.aifs = 9;
1656 else
1657 qparam.aifs = 7;
a8ce8544
SG		 1658 break;
1659 /* never happens but let's not leave undefined */
1660 default:
1661 case IEEE80211_AC_BE:
1662 qparam.cw_max = aCWmax;
1663 qparam.cw_min = aCWmin;
1664 qparam.txop = 0;
239281f8
RL		 1665 if (is_ocb)
1666 qparam.aifs = 6;
1667 else
1668 qparam.aifs = 3;
a8ce8544
SG		 1669 break;
1670 case IEEE80211_AC_VI:
1671 qparam.cw_max = aCWmin;
1672 qparam.cw_min = (aCWmin + 1) / 2 - 1;
239281f8
RL		 1673 if (is_ocb)
1674 qparam.txop = 0;
1675 else if (use_11b)
a8ce8544
SG		 1676 qparam.txop = 6016/32;
1677 else
1678 qparam.txop = 3008/32;
239281f8
RL		 1679
1680 if (is_ocb)
1681 qparam.aifs = 3;
1682 else
1683 qparam.aifs = 2;
a8ce8544
SG		 1684 break;
1685 case IEEE80211_AC_VO:
1686 qparam.cw_max = (aCWmin + 1) / 2 - 1;
1687 qparam.cw_min = (aCWmin + 1) / 4 - 1;
239281f8
RL		 1688 if (is_ocb)
1689 qparam.txop = 0;
1690 else if (use_11b)
a8ce8544
SG		 1691 qparam.txop = 3264/32;
1692 else
1693 qparam.txop = 1504/32;
1694 qparam.aifs = 2;
1695 break;
1696 }
aa837e1d 1697 }
e552af05 1698 ieee80211_regulatory_limit_wmm_params(sdata, &qparam, ac);
5825fe10 1699
ab13315a
KV		 1700 qparam.uapsd = false;
1701
b3e2130b
JB		 1702 link->tx_conf[ac] = qparam;
1703 drv_conf_tx(local, link, ac, &qparam);
aa837e1d 1704 }
e1b3ec1a 1705
f142c6b9 1706 if (sdata->vif.type != NL80211_IFTYPE_MONITOR &&
708d50ed
AB		 1707 sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE &&
1708 sdata->vif.type != NL80211_IFTYPE_NAN) {
b3e2130b 1709 link->conf->qos = enable_qos;
3abead59 1710 if (bss_notify)
b3e2130b 1711 ieee80211_link_info_change_notify(sdata, link,
7b7090b4 1712 BSS_CHANGED_QOS);
d9734979 1713 }
5825fe10 1714}
e50db65c 1715
46900298 1716void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
700e8ea6 1717 u16 transaction, u16 auth_alg, u16 status,
4a3cb702 1718 const u8 *extra, size_t extra_len, const u8 *da,
1672c0e3
JB		 1719 const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx,
1720 u32 tx_flags)
46900298
JB		 1721{
1722 struct ieee80211_local *local = sdata->local;
1723 struct sk_buff *skb;
1724 struct ieee80211_mgmt *mgmt;
8ec9a96b
JB		 1725 bool multi_link = sdata->vif.valid_links;
1726 struct {
1727 u8 id;
1728 u8 len;
1729 u8 ext_id;
1730 struct ieee80211_multi_link_elem ml;
1731 struct ieee80211_mle_basic_common_info basic;
1732 } __packed mle = {
1733 .id = WLAN_EID_EXTENSION,
1734 .len = sizeof(mle) - 2,
1735 .ext_id = WLAN_EID_EXT_EHT_MULTI_LINK,
1736 .ml.control = cpu_to_le16(IEEE80211_ML_CONTROL_TYPE_BASIC),
1737 .basic.len = sizeof(mle.basic),
1738 };
fffd0934 1739 int err;
46900298 1740
8ec9a96b
JB		 1741 memcpy(mle.basic.mld_mac_addr, sdata->vif.addr, ETH_ALEN);
1742
15e230ab 1743 /* 24 + 6 = header + auth_algo + auth_transaction + status_code */
744462a9 1744 skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN +
8ec9a96b
JB		 1745 24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN +
1746 multi_link * sizeof(mle));
d15b8459 1747 if (!skb)
46900298 1748 return;
d15b8459 1749
744462a9 1750 skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN);
46900298 1751
b080db58 1752 mgmt = skb_put_zero(skb, 24 + 6);
46900298
JB		 1753 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
1754 IEEE80211_STYPE_AUTH);
efa6a09d 1755 memcpy(mgmt->da, da, ETH_ALEN);
47846c9b 1756 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
46900298
JB		 1757 memcpy(mgmt->bssid, bssid, ETH_ALEN);
1758 mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg);
1759 mgmt->u.auth.auth_transaction = cpu_to_le16(transaction);
700e8ea6 1760 mgmt->u.auth.status_code = cpu_to_le16(status);
46900298 1761 if (extra)
59ae1d12 1762 skb_put_data(skb, extra, extra_len);
8ec9a96b
JB		 1763 if (multi_link)
1764 skb_put_data(skb, &mle, sizeof(mle));
46900298 1765
fffd0934
JB		 1766 if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) {
1767 mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
1768 err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx);
7d7b0075
JB		 1769 if (WARN_ON(err)) {
1770 kfree_skb(skb);
1771 return;
1772 }
fffd0934
JB		 1773 }
1774
1672c0e3
JB		 1775 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT |
1776 tx_flags;
62ae67be 1777 ieee80211_tx_skb(sdata, skb);
46900298
JB		 1778}
1779
6ae16775 1780void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
4b08d1b6
JB		 1781 const u8 *da, const u8 *bssid,
1782 u16 stype, u16 reason,
6ae16775
AQ		 1783 bool send_frame, u8 *frame_buf)
1784{
1785 struct ieee80211_local *local = sdata->local;
1786 struct sk_buff *skb;
1787 struct ieee80211_mgmt *mgmt = (void *)frame_buf;
1788
1789 /* build frame */
1790 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
1791 mgmt->duration = 0; /* initialize only */
1792 mgmt->seq_ctrl = 0; /* initialize only */
4b08d1b6 1793 memcpy(mgmt->da, da, ETH_ALEN);
6ae16775
AQ		 1794 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
1795 memcpy(mgmt->bssid, bssid, ETH_ALEN);
1796 /* u.deauth.reason_code == u.disassoc.reason_code */
1797 mgmt->u.deauth.reason_code = cpu_to_le16(reason);
1798
1799 if (send_frame) {
1800 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
1801 IEEE80211_DEAUTH_FRAME_LEN);
1802 if (!skb)
1803 return;
1804
1805 skb_reserve(skb, local->hw.extra_tx_headroom);
1806
1807 /* copy in frame */
59ae1d12 1808 skb_put_data(skb, mgmt, IEEE80211_DEAUTH_FRAME_LEN);
6ae16775
AQ		 1809
1810 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
1811 !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED))
1812 IEEE80211_SKB_CB(skb)->flags |=
1813 IEEE80211_TX_INTFL_DONT_ENCRYPT;
1814
1815 ieee80211_tx_skb(sdata, skb);
1816 }
1817}
1818
2ad2274c
IP		 1819static u8 *ieee80211_write_he_6ghz_cap(u8 *pos, __le16 cap, u8 *end)
1820{
1821 if ((end - pos) < 5)
1822 return pos;
1823
1824 *pos++ = WLAN_EID_EXTENSION;
1825 *pos++ = 1 + sizeof(cap);
1826 *pos++ = WLAN_EID_EXT_HE_6GHZ_CAPA;
1827 memcpy(pos, &cap, sizeof(cap));
1828
1829 return pos + 2;
1830}
1831
1832static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata,
c56ef672
DS		 1833 u8 *buffer, size_t buffer_len,
1834 const u8 *ie, size_t ie_len,
57fbcce3 1835 enum nl80211_band band,
c56ef672
DS		 1836 u32 rate_mask,
1837 struct cfg80211_chan_def *chandef,
00387f32 1838 size_t *offset, u32 flags)
de95a54b 1839{
2ad2274c 1840 struct ieee80211_local *local = sdata->local;
de95a54b 1841 struct ieee80211_supported_band *sband;
41cbb0f5 1842 const struct ieee80211_sta_he_cap *he_cap;
820acc81 1843 const struct ieee80211_sta_eht_cap *eht_cap;
c604b9f2 1844 u8 *pos = buffer, *end = buffer + buffer_len;
c56ef672 1845 size_t noffset;
8e664fb3 1846 int supp_rates_len, i;
8dcb2003
JM		 1847 u8 rates[32];
1848 int num_rates;
1849 int ext_rates_len;
2103dec1
SW		 1850 int shift;
1851 u32 rate_flags;
40a11ca8 1852 bool have_80mhz = false;
de95a54b 1853
c56ef672
DS		 1854 *offset = 0;
1855
4d36ec58 1856 sband = local->hw.wiphy->bands[band];
d811b3d5
AN		 1857 if (WARN_ON_ONCE(!sband))
1858 return 0;
de95a54b 1859
2103dec1
SW		 1860 rate_flags = ieee80211_chandef_rate_flags(chandef);
1861 shift = ieee80211_chandef_get_shift(chandef);
1862
8dcb2003
JM		 1863 num_rates = 0;
1864 for (i = 0; i < sband->n_bitrates; i++) {
1865 if ((BIT(i) & rate_mask) == 0)
1866 continue; /* skip rate */
2103dec1
SW		 1867 if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
1868 continue;
1869
1870 rates[num_rates++] =
1871 (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate,
1872 (1 << shift) * 5);
8dcb2003
JM		 1873 }
1874
1875 supp_rates_len = min_t(int, num_rates, 8);
8e664fb3 1876
c604b9f2
JB		 1877 if (end - pos < 2 + supp_rates_len)
1878 goto out_err;
de95a54b 1879 *pos++ = WLAN_EID_SUPP_RATES;
8e664fb3 1880 *pos++ = supp_rates_len;
8dcb2003
JM		 1881 memcpy(pos, rates, supp_rates_len);
1882 pos += supp_rates_len;
8e664fb3
JB		 1883
1884 /* insert "request information" if in custom IEs */
1885 if (ie && ie_len) {
1886 static const u8 before_extrates[] = {
1887 WLAN_EID_SSID,
1888 WLAN_EID_SUPP_RATES,
1889 WLAN_EID_REQUEST,
1890 };
1891 noffset = ieee80211_ie_split(ie, ie_len,
1892 before_extrates,
1893 ARRAY_SIZE(before_extrates),
c56ef672
DS		 1894 *offset);
1895 if (end - pos < noffset - *offset)
c604b9f2 1896 goto out_err;
c56ef672
DS		 1897 memcpy(pos, ie + *offset, noffset - *offset);
1898 pos += noffset - *offset;
1899 *offset = noffset;
8e664fb3
JB		 1900 }
1901
8dcb2003
JM		 1902 ext_rates_len = num_rates - supp_rates_len;
1903 if (ext_rates_len > 0) {
c604b9f2
JB		 1904 if (end - pos < 2 + ext_rates_len)
1905 goto out_err;
8e664fb3 1906 *pos++ = WLAN_EID_EXT_SUPP_RATES;
8dcb2003
JM		 1907 *pos++ = ext_rates_len;
1908 memcpy(pos, rates + supp_rates_len, ext_rates_len);
1909 pos += ext_rates_len;
8e664fb3
JB		 1910 }
1911
57fbcce3 1912 if (chandef->chan && sband->band == NL80211_BAND_2GHZ) {
c604b9f2
JB		 1913 if (end - pos < 3)
1914 goto out_err;
651b5225
JM		 1915 *pos++ = WLAN_EID_DS_PARAMS;
1916 *pos++ = 1;
2103dec1
SW		 1917 *pos++ = ieee80211_frequency_to_channel(
1918 chandef->chan->center_freq);
651b5225
JM		 1919 }
1920
b9771d41
JB		 1921 if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT)
1922 goto done;
1923
8e664fb3
JB		 1924 /* insert custom IEs that go before HT */
1925 if (ie && ie_len) {
1926 static const u8 before_ht[] = {
a7f26d80
JB		 1927 /*
1928 * no need to list the ones split off already
1929 * (or generated here)
1930 */
8e664fb3
JB		 1931 WLAN_EID_DS_PARAMS,
1932 WLAN_EID_SUPPORTED_REGULATORY_CLASSES,
1933 };
1934 noffset = ieee80211_ie_split(ie, ie_len,
1935 before_ht, ARRAY_SIZE(before_ht),
c56ef672
DS		 1936 *offset);
1937 if (end - pos < noffset - *offset)
c604b9f2 1938 goto out_err;
c56ef672
DS		 1939 memcpy(pos, ie + *offset, noffset - *offset);
1940 pos += noffset - *offset;
1941 *offset = noffset;
de95a54b
JB		 1942 }
1943
c604b9f2
JB		 1944 if (sband->ht_cap.ht_supported) {
1945 if (end - pos < 2 + sizeof(struct ieee80211_ht_cap))
1946 goto out_err;
ef96a842
BG		 1947 pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap,
1948 sband->ht_cap.cap);
c604b9f2 1949 }
5ef2d41a 1950
4d952300 1951 /* insert custom IEs that go before VHT */
8e664fb3 1952 if (ie && ie_len) {
4d952300 1953 static const u8 before_vht[] = {
a7f26d80
JB		 1954 /*
1955 * no need to list the ones split off already
1956 * (or generated here)
1957 */
4d952300
JB		 1958 WLAN_EID_BSS_COEX_2040,
1959 WLAN_EID_EXT_CAPABILITY,
1960 WLAN_EID_SSID_LIST,
1961 WLAN_EID_CHANNEL_USAGE,
1962 WLAN_EID_INTERWORKING,
b44eebea 1963 WLAN_EID_MESH_ID,
a7f26d80 1964 /* 60 GHz (Multi-band, DMG, MMS) can't happen */
4d952300
JB		 1965 };
1966 noffset = ieee80211_ie_split(ie, ie_len,
1967 before_vht, ARRAY_SIZE(before_vht),
c56ef672
DS		 1968 *offset);
1969 if (end - pos < noffset - *offset)
c604b9f2 1970 goto out_err;
c56ef672
DS		 1971 memcpy(pos, ie + *offset, noffset - *offset);
1972 pos += noffset - *offset;
1973 *offset = noffset;
de95a54b
JB		 1974 }
1975
40a11ca8
JB		 1976 /* Check if any channel in this sband supports at least 80 MHz */
1977 for (i = 0; i < sband->n_channels; i++) {
fa44b988
AN		 1978 if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED |
1979 IEEE80211_CHAN_NO_80MHZ))
1980 continue;
1981
1982 have_80mhz = true;
1983 break;
40a11ca8
JB		 1984 }
1985
1986 if (sband->vht_cap.vht_supported && have_80mhz) {
c604b9f2
JB		 1987 if (end - pos < 2 + sizeof(struct ieee80211_vht_cap))
1988 goto out_err;
ba0afa2f
MP		 1989 pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap,
1990 sband->vht_cap.cap);
c604b9f2 1991 }
ba0afa2f 1992
41cbb0f5
LC		 1993 /* insert custom IEs that go before HE */
1994 if (ie && ie_len) {
1995 static const u8 before_he[] = {
1996 /*
1997 * no need to list the ones split off before VHT
1998 * or generated here
1999 */
2000 WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS,
2001 WLAN_EID_AP_CSN,
2002 /* TODO: add 11ah/11aj/11ak elements */
2003 };
2004 noffset = ieee80211_ie_split(ie, ie_len,
2005 before_he, ARRAY_SIZE(before_he),
2006 *offset);
2007 if (end - pos < noffset - *offset)
2008 goto out_err;
2009 memcpy(pos, ie + *offset, noffset - *offset);
2010 pos += noffset - *offset;
2011 *offset = noffset;
2012 }
2013
bac2fd3d
JB		 2014 he_cap = ieee80211_get_he_iftype_cap(sband,
2015 ieee80211_vif_type_p2p(&sdata->vif));
0bc47057
JB		 2016 if (he_cap &&
2017 cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band),
2018 IEEE80211_CHAN_NO_HE)) {
1f2c1044 2019 pos = ieee80211_ie_build_he_cap(0, pos, he_cap, end);
41cbb0f5
LC		 2020 if (!pos)
2021 goto out_err;
7d29bc50
JB		 2022 }
2023
820acc81
IP		 2024 eht_cap = ieee80211_get_eht_iftype_cap(sband,
2025 ieee80211_vif_type_p2p(&sdata->vif));
2026
2027 if (eht_cap &&
2028 cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band),
2029 IEEE80211_CHAN_NO_HE |
2030 IEEE80211_CHAN_NO_EHT)) {
ea5cba26
JB		 2031 pos = ieee80211_ie_build_eht_cap(pos, he_cap, eht_cap, end,
2032 sdata->vif.type == NL80211_IFTYPE_AP);
820acc81
IP		 2033 if (!pos)
2034 goto out_err;
2035 }
2036
7d29bc50
JB		 2037 if (cfg80211_any_usable_channels(local->hw.wiphy,
2038 BIT(NL80211_BAND_6GHZ),
2039 IEEE80211_CHAN_NO_HE)) {
2040 struct ieee80211_supported_band *sband6;
2041
2042 sband6 = local->hw.wiphy->bands[NL80211_BAND_6GHZ];
2043 he_cap = ieee80211_get_he_iftype_cap(sband6,
2044 ieee80211_vif_type_p2p(&sdata->vif));
2ad2274c 2045
7d29bc50 2046 if (he_cap) {
2ad2274c
IP		 2047 enum nl80211_iftype iftype =
2048 ieee80211_vif_type_p2p(&sdata->vif);
2049 __le16 cap = ieee80211_get_he_6ghz_capa(sband, iftype);
2050
2051 pos = ieee80211_write_he_6ghz_cap(pos, cap, end);
2052 }
41cbb0f5
LC		 2053 }
2054
2055 /*
2056 * If adding more here, adjust code in main.c
2057 * that calculates local->scan_ies_len.
2058 */
2059
c604b9f2
JB		 2060 return pos - buffer;
2061 out_err:
2062 WARN_ONCE(1, "not enough space for preq IEs\n");
b9771d41 2063 done:
de95a54b
JB		 2064 return pos - buffer;
2065}
2066
2ad2274c 2067int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
c56ef672
DS		 2068 size_t buffer_len,
2069 struct ieee80211_scan_ies *ie_desc,
2070 const u8 *ie, size_t ie_len,
2071 u8 bands_used, u32 *rate_masks,
00387f32
JB		 2072 struct cfg80211_chan_def *chandef,
2073 u32 flags)
c56ef672
DS		 2074{
2075 size_t pos = 0, old_pos = 0, custom_ie_offset = 0;
2076 int i;
2077
2078 memset(ie_desc, 0, sizeof(*ie_desc));
2079
57fbcce3 2080 for (i = 0; i < NUM_NL80211_BANDS; i++) {
c56ef672 2081 if (bands_used & BIT(i)) {
2ad2274c 2082 pos += ieee80211_build_preq_ies_band(sdata,
c56ef672
DS		 2083 buffer + pos,
2084 buffer_len - pos,
2085 ie, ie_len, i,
2086 rate_masks[i],
2087 chandef,
00387f32
JB		 2088 &custom_ie_offset,
2089 flags);
c56ef672
DS		 2090 ie_desc->ies[i] = buffer + old_pos;
2091 ie_desc->len[i] = pos - old_pos;
2092 old_pos = pos;
2093 }
2094 }
2095
2096 /* add any remaining custom IEs */
2097 if (ie && ie_len) {
2098 if (WARN_ONCE(buffer_len - pos < ie_len - custom_ie_offset,
2099 "not enough space for preq custom IEs\n"))
2100 return pos;
2101 memcpy(buffer + pos, ie + custom_ie_offset,
2102 ie_len - custom_ie_offset);
2103 ie_desc->common_ies = buffer + pos;
2104 ie_desc->common_ie_len = ie_len - custom_ie_offset;
2105 pos += ie_len - custom_ie_offset;
2106 }
2107
2108 return pos;
2109};
2110
a619a4c0 2111struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
a344d677
JB		 2112 const u8 *src, const u8 *dst,
2113 u32 ratemask,
6b77863b 2114 struct ieee80211_channel *chan,
a619a4c0 2115 const u8 *ssid, size_t ssid_len,
a806c558 2116 const u8 *ie, size_t ie_len,
00387f32 2117 u32 flags)
46900298
JB		 2118{
2119 struct ieee80211_local *local = sdata->local;
2103dec1 2120 struct cfg80211_chan_def chandef;
46900298
JB		 2121 struct sk_buff *skb;
2122 struct ieee80211_mgmt *mgmt;
b9a9ada1 2123 int ies_len;
57fbcce3 2124 u32 rate_masks[NUM_NL80211_BANDS] = {};
c56ef672 2125 struct ieee80211_scan_ies dummy_ie_desc;
46900298 2126
a806c558
PS		 2127 /*
2128 * Do not send DS Channel parameter for directed probe requests
2129 * in order to maximize the chance that we get a response. Some
2130 * badly-behaved APs don't respond when this parameter is included.
2131 */
2103dec1 2132 chandef.width = sdata->vif.bss_conf.chandef.width;
00387f32 2133 if (flags & IEEE80211_PROBE_FLAG_DIRECTED)
2103dec1 2134 chandef.chan = NULL;
a806c558 2135 else
2103dec1 2136 chandef.chan = chan;
651b5225 2137
a344d677 2138 skb = ieee80211_probereq_get(&local->hw, src, ssid, ssid_len,
f22d9813 2139 local->scan_ies_len + ie_len);
5b2bbf75 2140 if (!skb)
b9a9ada1
JB		 2141 return NULL;
2142
c56ef672 2143 rate_masks[chan->band] = ratemask;
2ad2274c 2144 ies_len = ieee80211_build_preq_ies(sdata, skb_tail_pointer(skb),
c56ef672
DS		 2145 skb_tailroom(skb), &dummy_ie_desc,
2146 ie, ie_len, BIT(chan->band),
00387f32 2147 rate_masks, &chandef, flags);
b9a9ada1 2148 skb_put(skb, ies_len);
7c12ce8b 2149
46900298 2150 if (dst) {
7c12ce8b 2151 mgmt = (struct ieee80211_mgmt *) skb->data;
46900298
JB		 2152 memcpy(mgmt->da, dst, ETH_ALEN);
2153 memcpy(mgmt->bssid, dst, ETH_ALEN);
46900298 2154 }
46900298 2155
62ae67be 2156 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
5b2bbf75 2157
a619a4c0
JO		 2158 return skb;
2159}
2160
2103dec1 2161u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
46900298 2162 struct ieee802_11_elems *elems,
57fbcce3 2163 enum nl80211_band band, u32 *basic_rates)
46900298
JB		 2164{
2165 struct ieee80211_supported_band *sband;
46900298 2166 size_t num_rates;
2103dec1
SW		 2167 u32 supp_rates, rate_flags;
2168 int i, j, shift;
21a8e9dd 2169
2103dec1 2170 sband = sdata->local->hw.wiphy->bands[band];
21a8e9dd
MSS		 2171 if (WARN_ON(!sband))
2172 return 1;
2103dec1
SW		 2173
2174 rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef);
2175 shift = ieee80211_vif_get_shift(&sdata->vif);
46900298 2176
46900298
JB		 2177 num_rates = sband->n_bitrates;
2178 supp_rates = 0;
2179 for (i = 0; i < elems->supp_rates_len +
2180 elems->ext_supp_rates_len; i++) {
2181 u8 rate = 0;
2182 int own_rate;
9ebb61a2 2183 bool is_basic;
46900298
JB		 2184 if (i < elems->supp_rates_len)
2185 rate = elems->supp_rates[i];
2186 else if (elems->ext_supp_rates)
2187 rate = elems->ext_supp_rates
2188 [i - elems->supp_rates_len];
2189 own_rate = 5 * (rate & 0x7f);
9ebb61a2
AN		 2190 is_basic = !!(rate & 0x80);
2191
2192 if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
2193 continue;
2194
2195 for (j = 0; j < num_rates; j++) {
2103dec1
SW		 2196 int brate;
2197 if ((rate_flags & sband->bitrates[j].flags)
2198 != rate_flags)
2199 continue;
2200
2201 brate = DIV_ROUND_UP(sband->bitrates[j].bitrate,
2202 1 << shift);
2203
2204 if (brate == own_rate) {
46900298 2205 supp_rates |= BIT(j);
9ebb61a2
AN		 2206 if (basic_rates && is_basic)
2207 *basic_rates |= BIT(j);
2208 }
2209 }
46900298
JB		 2210 }
2211 return supp_rates;
2212}
f2753ddb 2213
84f6a01c
JB		 2214void ieee80211_stop_device(struct ieee80211_local *local)
2215{
2216 ieee80211_led_radio(local, false);
67408c8c 2217 ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO);
84f6a01c
JB		 2218
2219 cancel_work_sync(&local->reconfig_filter);
84f6a01c
JB		 2220
2221 flush_workqueue(local->workqueue);
678f415f 2222 drv_stop(local);
84f6a01c
JB		 2223}
2224
74430f94
JB		 2225static void ieee80211_flush_completed_scan(struct ieee80211_local *local,
2226 bool aborted)
2227{
2228 /* It's possible that we don't handle the scan completion in
2229 * time during suspend, so if it's still marked as completed
2230 * here, queue the work and flush it to clean things up.
2231 * Instead of calling the worker function directly here, we
2232 * really queue it to avoid potential races with other flows
2233 * scheduling the same work.
2234 */
2235 if (test_bit(SCAN_COMPLETED, &local->scanning)) {
2236 /* If coming from reconfiguration failure, abort the scan so
2237 * we don't attempt to continue a partial HW scan - which is
2238 * possible otherwise if (e.g.) the 2.4 GHz portion was the
2239 * completed scan, and a 5 GHz portion is still pending.
2240 */
2241 if (aborted)
2242 set_bit(SCAN_ABORTED, &local->scanning);
2243 ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0);
2244 flush_delayed_work(&local->scan_work);
2245 }
2246}
2247
f6837ba8
JB		 2248static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local)
2249{
2250 struct ieee80211_sub_if_data *sdata;
2251 struct ieee80211_chanctx *ctx;
2252
2253 /*
2254 * We get here if during resume the device can't be restarted properly.
2255 * We might also get here if this happens during HW reset, which is a
2256 * slightly different situation and we need to drop all connections in
2257 * the latter case.
2258 *
2259 * Ask cfg80211 to turn off all interfaces, this will result in more
2260 * warnings but at least we'll then get into a clean stopped state.
2261 */
2262
2263 local->resuming = false;
2264 local->suspended = false;
7584f88f 2265 local->in_reconfig = false;
f6837ba8 2266
74430f94
JB		 2267 ieee80211_flush_completed_scan(local, true);
2268
f6837ba8
JB		 2269 /* scheduled scan clearly can't be running any more, but tell
2270 * cfg80211 and clear local state
2271 */
2272 ieee80211_sched_scan_end(local);
2273
2274 list_for_each_entry(sdata, &local->interfaces, list)
2275 sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER;
2276
2277 /* Mark channel contexts as not being in the driver any more to avoid
2278 * removing them from the driver during the shutdown process...
2279 */
2280 mutex_lock(&local->chanctx_mtx);
2281 list_for_each_entry(ctx, &local->chanctx_list, list)
2282 ctx->driver_present = false;
2283 mutex_unlock(&local->chanctx_mtx);
f6837ba8
JB		 2284}
2285
153a5fc4 2286static void ieee80211_assign_chanctx(struct ieee80211_local *local,
b4f85443 2287 struct ieee80211_sub_if_data *sdata,
d8675a63 2288 struct ieee80211_link_data *link)
153a5fc4
SG		 2289{
2290 struct ieee80211_chanctx_conf *conf;
2291 struct ieee80211_chanctx *ctx;
2292
2293 if (!local->use_chanctx)
2294 return;
2295
2296 mutex_lock(&local->chanctx_mtx);
d8675a63 2297 conf = rcu_dereference_protected(link->conf->chanctx_conf,
153a5fc4
SG		 2298 lockdep_is_held(&local->chanctx_mtx));
2299 if (conf) {
2300 ctx = container_of(conf, struct ieee80211_chanctx, conf);
727eff4d 2301 drv_assign_vif_chanctx(local, sdata, link->conf, ctx);
153a5fc4
SG		 2302 }
2303 mutex_unlock(&local->chanctx_mtx);
2304}
2305
1ea2c864
JB		 2306static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata)
2307{
2308 struct ieee80211_local *local = sdata->local;
2309 struct sta_info *sta;
2310
2311 /* add STAs back */
2312 mutex_lock(&local->sta_mtx);
2313 list_for_each_entry(sta, &local->sta_list, list) {
2314 enum ieee80211_sta_state state;
2315
2316 if (!sta->uploaded || sta->sdata != sdata)
2317 continue;
2318
2319 for (state = IEEE80211_STA_NOTEXIST;
2320 state < sta->sta_state; state++)
2321 WARN_ON(drv_sta_state(local, sta->sdata, sta, state,
2322 state + 1));
2323 }
2324 mutex_unlock(&local->sta_mtx);
2325}
2326
167e33f4
AB		 2327static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata)
2328{
2329 struct cfg80211_nan_func *func, **funcs;
2330 int res, id, i = 0;
2331
2332 res = drv_start_nan(sdata->local, sdata,
2333 &sdata->u.nan.conf);
2334 if (WARN_ON(res))
2335 return res;
2336
6396bb22
KC		 2337 funcs = kcalloc(sdata->local->hw.max_nan_de_entries + 1,
2338 sizeof(*funcs),
2339 GFP_KERNEL);
167e33f4
AB		 2340 if (!funcs)
2341 return -ENOMEM;
2342
2343 /* Add all the functions:
2344 * This is a little bit ugly. We need to call a potentially sleeping
2345 * callback for each NAN function, so we can't hold the spinlock.
2346 */
2347 spin_lock_bh(&sdata->u.nan.func_lock);
2348
2349 idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id)
2350 funcs[i++] = func;
2351
2352 spin_unlock_bh(&sdata->u.nan.func_lock);
2353
2354 for (i = 0; funcs[i]; i++) {
2355 res = drv_add_nan_func(sdata->local, sdata, funcs[i]);
2356 if (WARN_ON(res))
2357 ieee80211_nan_func_terminated(&sdata->vif,
2358 funcs[i]->instance_id,
2359 NL80211_NAN_FUNC_TERM_REASON_ERROR,
2360 GFP_KERNEL);
2361 }
2362
2363 kfree(funcs);
2364
2365 return 0;
2366}
2367
f2753ddb
JB		 2368int ieee80211_reconfig(struct ieee80211_local *local)
2369{
2370 struct ieee80211_hw *hw = &local->hw;
2371 struct ieee80211_sub_if_data *sdata;
55de908a 2372 struct ieee80211_chanctx *ctx;
f2753ddb 2373 struct sta_info *sta;
2683d65b 2374 int res, i;
d888130a 2375 bool reconfig_due_to_wowlan = false;
d43c6b6e 2376 struct ieee80211_sub_if_data *sched_scan_sdata;
6ea0a69c 2377 struct cfg80211_sched_scan_request *sched_scan_req;
d43c6b6e 2378 bool sched_scan_stopped = false;
b0485e9f 2379 bool suspended = local->suspended;
7d352ccf 2380 bool in_reconfig = false;
d888130a 2381
0f8b8245
EP		 2382 /* nothing to do if HW shouldn't run */
2383 if (!local->open_count)
2384 goto wake_up;
2385
8f21b0ad 2386#ifdef CONFIG_PM
b0485e9f 2387 if (suspended)
ceb99fe0 2388 local->resuming = true;
f2753ddb 2389
eecc4800 2390 if (local->wowlan) {
b0485e9f
EP		 2391 /*
2392 * In the wowlan case, both mac80211 and the device
2393 * are functional when the resume op is called, so
2394 * clear local->suspended so the device could operate
2395 * normally (e.g. pass rx frames).
2396 */
2397 local->suspended = false;
eecc4800 2398 res = drv_resume(local);
27b3eb9c 2399 local->wowlan = false;
eecc4800
JB		 2400 if (res < 0) {
2401 local->resuming = false;
2402 return res;
2403 }
2404 if (res == 0)
2405 goto wake_up;
2406 WARN_ON(res > 1);
2407 /*
2408 * res is 1, which means the driver requested
2409 * to go through a regular reset on wakeup.
b0485e9f 2410 * restore local->suspended in this case.
eecc4800 2411 */
d888130a 2412 reconfig_due_to_wowlan = true;
b0485e9f 2413 local->suspended = true;
eecc4800
JB		 2414 }
2415#endif
f2753ddb 2416
43d6df00
EP		 2417 /*
2418 * In case of hw_restart during suspend (without wowlan),
2419 * cancel restart work, as we are reconfiguring the device
2420 * anyway.
2421 * Note that restart_work is scheduled on a frozen workqueue,
2422 * so we can't deadlock in this case.
2423 */
2424 if (suspended && local->in_reconfig && !reconfig_due_to_wowlan)
2425 cancel_work_sync(&local->restart_work);
2426
968a76ce
EP		 2427 local->started = false;
2428
94f9b97b
JB		 2429 /*
2430 * Upon resume hardware can sometimes be goofy due to
2431 * various platform / driver / bus issues, so restarting
2432 * the device may at times not work immediately. Propagate
2433 * the error.
2434 */
2435 res = drv_start(local);
2436 if (res) {
b0485e9f 2437 if (suspended)
f6837ba8
JB		 2438 WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n");
2439 else
2440 WARN(1, "Hardware became unavailable during restart.\n");
2441 ieee80211_handle_reconfig_failure(local);
94f9b97b 2442 return res;
f2753ddb
JB		 2443 }
2444
7f281975
YAP		 2445 /* setup fragmentation threshold */
2446 drv_set_frag_threshold(local, hw->wiphy->frag_threshold);
2447
2448 /* setup RTS threshold */
2449 drv_set_rts_threshold(local, hw->wiphy->rts_threshold);
2450
2451 /* reset coverage class */
2452 drv_set_coverage_class(local, hw->wiphy->coverage_class);
2453
94f9b97b
JB		 2454 ieee80211_led_radio(local, true);
2455 ieee80211_mod_tpt_led_trig(local,
2456 IEEE80211_TPT_LEDTRIG_FL_RADIO, 0);
2457
f2753ddb 2458 /* add interfaces */
6dd23603 2459 sdata = wiphy_dereference(local->hw.wiphy, local->monitor_sdata);
4b6f1dd6 2460 if (sdata) {
3c3e21e7
JB		 2461 /* in HW restart it exists already */
2462 WARN_ON(local->resuming);
4b6f1dd6
JB		 2463 res = drv_add_interface(local, sdata);
2464 if (WARN_ON(res)) {
0c2bef46 2465 RCU_INIT_POINTER(local->monitor_sdata, NULL);
4b6f1dd6
JB		 2466 synchronize_net();
2467 kfree(sdata);
2468 }
2469 }
2470
f2753ddb
JB		 2471 list_for_each_entry(sdata, &local->interfaces, list) {
2472 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
2473 sdata->vif.type != NL80211_IFTYPE_MONITOR &&
c8fff3dc 2474 ieee80211_sdata_running(sdata)) {
7b7eab6f 2475 res = drv_add_interface(local, sdata);
c8fff3dc
LC		 2476 if (WARN_ON(res))
2477 break;
2478 }
2479 }
2480
2481 /* If adding any of the interfaces failed above, roll back and
2482 * report failure.
2483 */
2484 if (res) {
2485 list_for_each_entry_continue_reverse(sdata, &local->interfaces,
2486 list)
2487 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
2488 sdata->vif.type != NL80211_IFTYPE_MONITOR &&
2489 ieee80211_sdata_running(sdata))
2490 drv_remove_interface(local, sdata);
2491 ieee80211_handle_reconfig_failure(local);
2492 return res;
f2753ddb
JB		 2493 }
2494
55de908a 2495 /* add channel contexts */
f0dea9c7
AS		 2496 if (local->use_chanctx) {
2497 mutex_lock(&local->chanctx_mtx);
2498 list_for_each_entry(ctx, &local->chanctx_list, list)
5bcae31d
MK		 2499 if (ctx->replace_state !=
2500 IEEE80211_CHANCTX_REPLACES_OTHER)
2501 WARN_ON(drv_add_chanctx(local, ctx));
f0dea9c7 2502 mutex_unlock(&local->chanctx_mtx);
55de908a 2503
6dd23603
JB		 2504 sdata = wiphy_dereference(local->hw.wiphy,
2505 local->monitor_sdata);
7df180f7 2506 if (sdata && ieee80211_sdata_running(sdata))
d8675a63 2507 ieee80211_assign_chanctx(local, sdata, &sdata->deflink);
7df180f7 2508 }
fe5f2559 2509
f2753ddb
JB		 2510 /* reconfigure hardware */
2511 ieee80211_hw_config(local, ~0);
2512
f2753ddb 2513 ieee80211_configure_filter(local);
f2753ddb
JB		 2514
2515 /* Finally also reconfigure all the BSS information */
2516 list_for_each_entry(sdata, &local->interfaces, list) {
d8675a63 2517 unsigned int link_id;
ac8dd506
JB		 2518 u32 changed;
2519
9607e6b6 2520 if (!ieee80211_sdata_running(sdata))
f2753ddb 2521 continue;
ac8dd506 2522
d8675a63
JB		 2523 sdata_lock(sdata);
2524 for (link_id = 0;
2525 link_id < ARRAY_SIZE(sdata->vif.link_conf);
2526 link_id++) {
2527 struct ieee80211_link_data *link;
2528
2529 link = sdata_dereference(sdata->link[link_id], sdata);
2530 if (link)
b4f85443
JB		 2531 ieee80211_assign_chanctx(local, sdata, link);
2532 }
d8675a63 2533 sdata_unlock(sdata);
1ea2c864
JB		 2534
2535 switch (sdata->vif.type) {
2536 case NL80211_IFTYPE_AP_VLAN:
2537 case NL80211_IFTYPE_MONITOR:
2538 break;
4926b51b 2539 case NL80211_IFTYPE_ADHOC:
f276e20b 2540 if (sdata->vif.cfg.ibss_joined)
4926b51b 2541 WARN_ON(drv_join_ibss(local, sdata));
fc0561dc 2542 fallthrough;
1ea2c864
JB		 2543 default:
2544 ieee80211_reconfig_stations(sdata);
fc0561dc 2545 fallthrough;
1ea2c864
JB		 2546 case NL80211_IFTYPE_AP: /* AP stations are handled later */
2547 for (i = 0; i < IEEE80211_NUM_ACS; i++)
b3e2130b
JB		 2548 drv_conf_tx(local, &sdata->deflink, i,
2549 &sdata->deflink.tx_conf[i]);
1ea2c864
JB		 2550 break;
2551 }
2552
ac8dd506
JB		 2553 /* common change flags for all interface types */
2554 changed = BSS_CHANGED_ERP_CTS_PROT |
2555 BSS_CHANGED_ERP_PREAMBLE |
2556 BSS_CHANGED_ERP_SLOT |
2557 BSS_CHANGED_HT |
2558 BSS_CHANGED_BASIC_RATES |
2559 BSS_CHANGED_BEACON_INT |
2560 BSS_CHANGED_BSSID |
4ced3f74 2561 BSS_CHANGED_CQM |
55de47f6 2562 BSS_CHANGED_QOS |
1ea6f9c0 2563 BSS_CHANGED_IDLE |
dcbe73ca
PKC		 2564 BSS_CHANGED_TXPOWER |
2565 BSS_CHANGED_MCAST_RATE;
ac8dd506 2566
d0a9123e 2567 if (sdata->vif.bss_conf.mu_mimo_owner)
23a1f8d4
SS		 2568 changed |= BSS_CHANGED_MU_GROUPS;
2569
f2753ddb
JB		 2570 switch (sdata->vif.type) {
2571 case NL80211_IFTYPE_STATION:
0d392e93 2572 changed |= BSS_CHANGED_ASSOC |
ab095877
EP		 2573 BSS_CHANGED_ARP_FILTER |
2574 BSS_CHANGED_PS;
c65dd147 2575
989c6505 2576 /* Re-send beacon info report to the driver */
bfd8403a 2577 if (sdata->deflink.u.mgd.have_beacon)
989c6505 2578 changed |= BSS_CHANGED_BEACON_INFO;
c65dd147 2579
e38a017b
AS		 2580 if (sdata->vif.bss_conf.max_idle_period ||
2581 sdata->vif.bss_conf.protected_keep_alive)
2582 changed |= BSS_CHANGED_KEEP_ALIVE;
2583
8d61ffa5 2584 sdata_lock(sdata);
ac8dd506 2585 ieee80211_bss_info_change_notify(sdata, changed);
8d61ffa5 2586 sdata_unlock(sdata);
ac8dd506 2587 break;
6e0bd6c3 2588 case NL80211_IFTYPE_OCB:
239281f8
RL		 2589 changed |= BSS_CHANGED_OCB;
2590 ieee80211_bss_info_change_notify(sdata, changed);
6e0bd6c3 2591 break;
f2753ddb 2592 case NL80211_IFTYPE_ADHOC:
ac8dd506 2593 changed |= BSS_CHANGED_IBSS;
fc0561dc 2594 fallthrough;
f2753ddb 2595 case NL80211_IFTYPE_AP:
339afbf4 2596 changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS;
e7979ac7 2597
bc847970
PKC		 2598 if (sdata->vif.bss_conf.ftm_responder == 1 &&
2599 wiphy_ext_feature_isset(sdata->local->hw.wiphy,
2600 NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER))
2601 changed |= BSS_CHANGED_FTM_RESPONDER;
2602
1041638f 2603 if (sdata->vif.type == NL80211_IFTYPE_AP) {
e7979ac7
AN		 2604 changed |= BSS_CHANGED_AP_PROBE_RESP;
2605
bfd8403a 2606 if (rcu_access_pointer(sdata->deflink.u.ap.beacon))
b327c84c
GG		 2607 drv_start_ap(local, sdata,
2608 sdata->deflink.conf);
1041638f 2609 }
fc0561dc 2610 fallthrough;
f2753ddb 2611 case NL80211_IFTYPE_MESH_POINT:
8da34932
JB		 2612 if (sdata->vif.bss_conf.enable_beacon) {
2613 changed |= BSS_CHANGED_BEACON |
2614 BSS_CHANGED_BEACON_ENABLED;
2615 ieee80211_bss_info_change_notify(sdata, changed);
2616 }
f2753ddb 2617 break;
167e33f4
AB		 2618 case NL80211_IFTYPE_NAN:
2619 res = ieee80211_reconfig_nan(sdata);
2620 if (res < 0) {
2621 ieee80211_handle_reconfig_failure(local);
2622 return res;
2623 }
2624 break;
f2753ddb
JB		 2625 case NL80211_IFTYPE_AP_VLAN:
2626 case NL80211_IFTYPE_MONITOR:
98104fde 2627 case NL80211_IFTYPE_P2P_DEVICE:
b205786e 2628 /* nothing to do */
f142c6b9 2629 break;
f2753ddb 2630 case NL80211_IFTYPE_UNSPECIFIED:
2e161f78 2631 case NUM_NL80211_IFTYPES:
2ca27bcf
JB		 2632 case NL80211_IFTYPE_P2P_CLIENT:
2633 case NL80211_IFTYPE_P2P_GO:
70d9c599 2634 case NL80211_IFTYPE_WDS:
f2753ddb
JB		 2635 WARN_ON(1);
2636 break;
2637 }
2638 }
2639
4a733ef1 2640 ieee80211_recalc_ps(local);
8e1b23b9 2641
6e1b1b24
EP		 2642 /*
2643 * The sta might be in psm against the ap (e.g. because
2644 * this was the state before a hw restart), so we
2645 * explicitly send a null packet in order to make sure
2646 * it'll sync against the ap (and get out of psm).
2647 */
2648 if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) {
2649 list_for_each_entry(sdata, &local->interfaces, list) {
2650 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2651 continue;
20f544ee
JB		 2652 if (!sdata->u.mgd.associated)
2653 continue;
6e1b1b24 2654
076cdcb1 2655 ieee80211_send_nullfunc(local, sdata, false);
6e1b1b24
EP		 2656 }
2657 }
2658
2e8d397e
AN		 2659 /* APs are now beaconing, add back stations */
2660 mutex_lock(&local->sta_mtx);
2661 list_for_each_entry(sta, &local->sta_list, list) {
2662 enum ieee80211_sta_state state;
2663
2664 if (!sta->uploaded)
2665 continue;
2666
19103a4b 2667 if (sta->sdata->vif.type != NL80211_IFTYPE_AP &&
2668 sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN)
2e8d397e
AN		 2669 continue;
2670
2671 for (state = IEEE80211_STA_NOTEXIST;
2672 state < sta->sta_state; state++)
2673 WARN_ON(drv_sta_state(local, sta->sdata, sta, state,
2674 state + 1));
2675 }
2676 mutex_unlock(&local->sta_mtx);
2677
7b21aea0 2678 /* add back keys */
f9dca80b 2679 list_for_each_entry(sdata, &local->interfaces, list)
624ff4b2 2680 ieee80211_reenable_keys(sdata);
7b21aea0 2681
0d440ea2
EP		 2682 /* Reconfigure sched scan if it was interrupted by FW restart */
2683 mutex_lock(&local->mtx);
2684 sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata,
2685 lockdep_is_held(&local->mtx));
2686 sched_scan_req = rcu_dereference_protected(local->sched_scan_req,
2687 lockdep_is_held(&local->mtx));
2688 if (sched_scan_sdata && sched_scan_req)
2689 /*
2690 * Sched scan stopped, but we don't want to report it. Instead,
2691 * we're trying to reschedule. However, if more than one scan
2692 * plan was set, we cannot reschedule since we don't know which
2693 * scan plan was currently running (and some scan plans may have
2694 * already finished).
2695 */
2696 if (sched_scan_req->n_scan_plans > 1 ||
2697 __ieee80211_request_sched_scan_start(sched_scan_sdata,
b9f628fc
EP		 2698 sched_scan_req)) {
2699 RCU_INIT_POINTER(local->sched_scan_sdata, NULL);
2700 RCU_INIT_POINTER(local->sched_scan_req, NULL);
0d440ea2 2701 sched_scan_stopped = true;
b9f628fc 2702 }
0d440ea2
EP		 2703 mutex_unlock(&local->mtx);
2704
2705 if (sched_scan_stopped)
a05829a7 2706 cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0);
0d440ea2 2707
c6209488 2708 wake_up:
04800ada 2709
3c3e21e7
JB		 2710 if (local->monitors == local->open_count && local->monitors > 0)
2711 ieee80211_add_virtual_monitor(local);
2712
2a419056
JB		 2713 /*
2714 * Clear the WLAN_STA_BLOCK_BA flag so new aggregation
2715 * sessions can be established after a resume.
2716 *
2717 * Also tear down aggregation sessions since reconfiguring
2718 * them in a hardware restart scenario is not easily done
2719 * right now, and the hardware will have lost information
2720 * about the sessions, but we and the AP still think they
2721 * are active. This is really a workaround though.
2722 */
30686bf7 2723 if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) {
2a419056
JB		 2724 mutex_lock(&local->sta_mtx);
2725
2726 list_for_each_entry(sta, &local->sta_list, list) {
27392719
EP		 2727 if (!local->resuming)
2728 ieee80211_sta_tear_down_BA_sessions(
2729 sta, AGG_STOP_LOCAL_REQUEST);
c2c98fde 2730 clear_sta_flag(sta, WLAN_STA_BLOCK_BA);
74e2bd1f 2731 }
2a419056
JB		 2732
2733 mutex_unlock(&local->sta_mtx);
74e2bd1f 2734 }
74e2bd1f 2735
13dee10b
JB		 2736 /*
2737 * If this is for hw restart things are still running.
2738 * We may want to change that later, however.
2739 */
2740 if (local->open_count && (!suspended || reconfig_due_to_wowlan))
2741 drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART);
2742
2316380f 2743 if (local->in_reconfig) {
7d352ccf 2744 in_reconfig = local->in_reconfig;
2316380f
SS		 2745 local->in_reconfig = false;
2746 barrier();
2747
2748 /* Restart deferred ROCs */
2749 mutex_lock(&local->mtx);
2750 ieee80211_start_next_roc(local);
2751 mutex_unlock(&local->mtx);
f8891461
NG		 2752
2753 /* Requeue all works */
2754 list_for_each_entry(sdata, &local->interfaces, list)
2755 ieee80211_queue_work(&local->hw, &sdata->work);
2316380f
SS		 2756 }
2757
445ea4e8 2758 ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP,
cca07b00
LC		 2759 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
2760 false);
f2753ddb 2761
7d352ccf
YC		 2762 if (in_reconfig) {
2763 list_for_each_entry(sdata, &local->interfaces, list) {
2764 if (!ieee80211_sdata_running(sdata))
2765 continue;
2766 if (sdata->vif.type == NL80211_IFTYPE_STATION)
2767 ieee80211_sta_restart(sdata);
2768 }
2769 }
2770
b0485e9f 2771 if (!suspended)
5bb644a0
JB		 2772 return 0;
2773
2774#ifdef CONFIG_PM
ceb99fe0 2775 /* first set suspended false, then resuming */
5bb644a0 2776 local->suspended = false;
ceb99fe0
JB		 2777 mb();
2778 local->resuming = false;
5bb644a0 2779
74430f94 2780 ieee80211_flush_completed_scan(local, false);
9120d94e 2781
0f8b8245 2782 if (local->open_count && !reconfig_due_to_wowlan)
cf2c92d8
EP		 2783 drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND);
2784
b8360ab8
JB		 2785 list_for_each_entry(sdata, &local->interfaces, list) {
2786 if (!ieee80211_sdata_running(sdata))
2787 continue;
2788 if (sdata->vif.type == NL80211_IFTYPE_STATION)
2789 ieee80211_sta_restart(sdata);
2790 }
2791
26d59535 2792 mod_timer(&local->sta_cleanup, jiffies + 1);
5bb644a0
JB		 2793#else
2794 WARN_ON(1);
2795#endif
d43c6b6e 2796
f2753ddb
JB		 2797 return 0;
2798}
42935eca 2799
7d352ccf 2800static void ieee80211_reconfig_disconnect(struct ieee80211_vif *vif, u8 flag)
95acac61
JB		 2801{
2802 struct ieee80211_sub_if_data *sdata;
2803 struct ieee80211_local *local;
2804 struct ieee80211_key *key;
2805
2806 if (WARN_ON(!vif))
2807 return;
2808
2809 sdata = vif_to_sdata(vif);
2810 local = sdata->local;
2811
7d352ccf
YC		 2812 if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_RESUME &&
2813 !local->resuming))
2814 return;
2815
2816 if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_HW_RESTART &&
2817 !local->in_reconfig))
95acac61
JB		 2818 return;
2819
2820 if (WARN_ON(vif->type != NL80211_IFTYPE_STATION))
2821 return;
2822
7d352ccf 2823 sdata->flags |= flag;
95acac61
JB		 2824
2825 mutex_lock(&local->key_mtx);
2826 list_for_each_entry(key, &sdata->key_list, list)
2827 key->flags |= KEY_FLAG_TAINTED;
2828 mutex_unlock(&local->key_mtx);
2829}
7d352ccf
YC		 2830
2831void ieee80211_hw_restart_disconnect(struct ieee80211_vif *vif)
2832{
2833 ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_HW_RESTART);
2834}
2835EXPORT_SYMBOL_GPL(ieee80211_hw_restart_disconnect);
2836
2837void ieee80211_resume_disconnect(struct ieee80211_vif *vif)
2838{
2839 ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_RESUME);
2840}
95acac61
JB		 2841EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect);
2842
e9aac179 2843void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
d8675a63 2844 struct ieee80211_link_data *link)
0f78231b 2845{
04ecd257
JB		 2846 struct ieee80211_local *local = sdata->local;
2847 struct ieee80211_chanctx_conf *chanctx_conf;
2848 struct ieee80211_chanctx *chanctx;
025e6be2 2849
04ecd257 2850 mutex_lock(&local->chanctx_mtx);
0f78231b 2851
d8675a63 2852 chanctx_conf = rcu_dereference_protected(link->conf->chanctx_conf,
d0a9123e 2853 lockdep_is_held(&local->chanctx_mtx));
0f78231b 2854
c189a685
AO		 2855 /*
2856 * This function can be called from a work, thus it may be possible
2857 * that the chanctx_conf is removed (due to a disconnection, for
2858 * example).
2859 * So nothing should be done in such case.
2860 */
2861 if (!chanctx_conf)
5d8e4237 2862 goto unlock;
0f78231b 2863
04ecd257
JB		 2864 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
2865 ieee80211_recalc_smps_chanctx(local, chanctx);
5d8e4237 2866 unlock:
04ecd257 2867 mutex_unlock(&local->chanctx_mtx);
0f78231b 2868}
8e664fb3 2869
0cbf348a
AO		 2870void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata,
2871 int link_id)
21f659bf
EP		 2872{
2873 struct ieee80211_local *local = sdata->local;
2874 struct ieee80211_chanctx_conf *chanctx_conf;
2875 struct ieee80211_chanctx *chanctx;
0cbf348a 2876 int i;
21f659bf
EP		 2877
2878 mutex_lock(&local->chanctx_mtx);
2879
0cbf348a
AO		 2880 for (i = 0; i < ARRAY_SIZE(sdata->vif.link_conf); i++) {
2881 struct ieee80211_bss_conf *bss_conf;
21f659bf 2882
0cbf348a
AO		 2883 if (link_id >= 0 && link_id != i)
2884 continue;
21f659bf 2885
0cbf348a
AO		 2886 rcu_read_lock();
2887 bss_conf = rcu_dereference(sdata->vif.link_conf[i]);
2888 if (!bss_conf) {
2889 rcu_read_unlock();
2890 continue;
2891 }
2892
2893 chanctx_conf = rcu_dereference_protected(bss_conf->chanctx_conf,
2894 lockdep_is_held(&local->chanctx_mtx));
2895 /*
2896 * Since we hold the chanctx_mtx (checked above)
2897 * we can take the chanctx_conf pointer out of the
2898 * RCU critical section, it cannot go away without
2899 * the mutex. Just the way we reached it could - in
2900 * theory - go away, but we don't really care and
2901 * it really shouldn't happen anyway.
2902 */
2903 rcu_read_unlock();
2904
2905 if (WARN_ON_ONCE(!chanctx_conf))
2906 goto unlock;
2907
2908 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx,
2909 conf);
2910 ieee80211_recalc_chanctx_min_def(local, chanctx);
2911 }
21f659bf
EP		 2912 unlock:
2913 mutex_unlock(&local->chanctx_mtx);
2914}
2915
8e664fb3
JB		 2916size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset)
2917{
2918 size_t pos = offset;
2919
2920 while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC)
2921 pos += 2 + ies[pos + 1];
2922
2923 return pos;
2924}
615f7b9b 2925
ef96a842 2926u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
42e7aa77
AS		 2927 u16 cap)
2928{
2929 __le16 tmp;
2930
2931 *pos++ = WLAN_EID_HT_CAPABILITY;
2932 *pos++ = sizeof(struct ieee80211_ht_cap);
2933 memset(pos, 0, sizeof(struct ieee80211_ht_cap));
2934
2935 /* capability flags */
2936 tmp = cpu_to_le16(cap);
2937 memcpy(pos, &tmp, sizeof(u16));
2938 pos += sizeof(u16);
2939
2940 /* AMPDU parameters */
ef96a842
BG		 2941 *pos++ = ht_cap->ampdu_factor |
2942 (ht_cap->ampdu_density <<
42e7aa77
AS		 2943 IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
2944
2945 /* MCS set */
ef96a842
BG		 2946 memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs));
2947 pos += sizeof(ht_cap->mcs);
42e7aa77
AS		 2948
2949 /* extended capabilities */
2950 pos += sizeof(__le16);
2951
2952 /* BF capabilities */
2953 pos += sizeof(__le32);
2954
2955 /* antenna selection */
2956 pos += sizeof(u8);
2957
2958 return pos;
2959}
2960
ba0afa2f 2961u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
cc3983d8 2962 u32 cap)
ba0afa2f
MP		 2963{
2964 __le32 tmp;
2965
2966 *pos++ = WLAN_EID_VHT_CAPABILITY;
d4950281
MP		 2967 *pos++ = sizeof(struct ieee80211_vht_cap);
2968 memset(pos, 0, sizeof(struct ieee80211_vht_cap));
ba0afa2f
MP		 2969
2970 /* capability flags */
2971 tmp = cpu_to_le32(cap);
2972 memcpy(pos, &tmp, sizeof(u32));
2973 pos += sizeof(u32);
2974
2975 /* VHT MCS set */
2976 memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs));
2977 pos += sizeof(vht_cap->vht_mcs);
2978
2979 return pos;
2980}
2981
60ad72da
SE		 2982u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype)
2983{
2984 const struct ieee80211_sta_he_cap *he_cap;
2985 struct ieee80211_supported_band *sband;
2986 u8 n;
2987
2988 sband = ieee80211_get_sband(sdata);
2989 if (!sband)
2990 return 0;
2991
2992 he_cap = ieee80211_get_he_iftype_cap(sband, iftype);
2993 if (!he_cap)
2994 return 0;
2995
2996 n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem);
2997 return 2 + 1 +
2998 sizeof(he_cap->he_cap_elem) + n +
2999 ieee80211_he_ppe_size(he_cap->ppe_thres[0],
3000 he_cap->he_cap_elem.phy_cap_info);
3001}
3002
ba323e29 3003u8 *ieee80211_ie_build_he_cap(ieee80211_conn_flags_t disable_flags, u8 *pos,
41cbb0f5
LC		 3004 const struct ieee80211_sta_he_cap *he_cap,
3005 u8 *end)
3006{
1f2c1044 3007 struct ieee80211_he_cap_elem elem;
41cbb0f5
LC		 3008 u8 n;
3009 u8 ie_len;
3010 u8 *orig_pos = pos;
3011
3012 /* Make sure we have place for the IE */
3013 /*
3014 * TODO: the 1 added is because this temporarily is under the EXTENSION
3015 * IE. Get rid of it when it moves.
3016 */
3017 if (!he_cap)
3018 return orig_pos;
3019
1f2c1044
JB		 3020 /* modify on stack first to calculate 'n' and 'ie_len' correctly */
3021 elem = he_cap->he_cap_elem;
3022
ba323e29 3023 if (disable_flags & IEEE80211_CONN_DISABLE_40MHZ)
1f2c1044
JB		 3024 elem.phy_cap_info[0] &=
3025 ~(IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G |
3026 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G);
3027
ba323e29 3028 if (disable_flags & IEEE80211_CONN_DISABLE_160MHZ)
1f2c1044
JB		 3029 elem.phy_cap_info[0] &=
3030 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
3031
ba323e29 3032 if (disable_flags & IEEE80211_CONN_DISABLE_80P80MHZ)
1f2c1044
JB		 3033 elem.phy_cap_info[0] &=
3034 ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G;
3035
3036 n = ieee80211_he_mcs_nss_size(&elem);
41cbb0f5
LC		 3037 ie_len = 2 + 1 +
3038 sizeof(he_cap->he_cap_elem) + n +
3039 ieee80211_he_ppe_size(he_cap->ppe_thres[0],
3040 he_cap->he_cap_elem.phy_cap_info);
3041
3042 if ((end - pos) < ie_len)
3043 return orig_pos;
3044
3045 *pos++ = WLAN_EID_EXTENSION;
3046 pos++; /* We'll set the size later below */
3047 *pos++ = WLAN_EID_EXT_HE_CAPABILITY;
3048
3049 /* Fixed data */
1f2c1044
JB		 3050 memcpy(pos, &elem, sizeof(elem));
3051 pos += sizeof(elem);
41cbb0f5
LC		 3052
3053 memcpy(pos, &he_cap->he_mcs_nss_supp, n);
3054 pos += n;
3055
3056 /* Check if PPE Threshold should be present */
3057 if ((he_cap->he_cap_elem.phy_cap_info[6] &
3058 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0)
3059 goto end;
3060
3061 /*
3062 * Calculate how many PPET16/PPET8 pairs are to come. Algorithm:
3063 * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK)
3064 */
3065 n = hweight8(he_cap->ppe_thres[0] &
3066 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
3067 n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >>
3068 IEEE80211_PPE_THRES_NSS_POS));
3069
3070 /*
3071 * Each pair is 6 bits, and we need to add the 7 "header" bits to the
3072 * total size.
3073 */
3074 n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7;
3075 n = DIV_ROUND_UP(n, 8);
3076
3077 /* Copy PPE Thresholds */
3078 memcpy(pos, &he_cap->ppe_thres, n);
3079 pos += n;
3080
3081end:
3082 orig_pos[1] = (pos - orig_pos) - 2;
3083 return pos;
3084}
3085
24a2042c 3086void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
abd27d06 3087 enum ieee80211_smps_mode smps_mode,
24a2042c
RM		 3088 struct sk_buff *skb)
3089{
3090 struct ieee80211_supported_band *sband;
3091 const struct ieee80211_sband_iftype_data *iftd;
3092 enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif);
3093 u8 *pos;
3094 u16 cap;
3095
65be6aa3
JB		 3096 if (!cfg80211_any_usable_channels(sdata->local->hw.wiphy,
3097 BIT(NL80211_BAND_6GHZ),
3098 IEEE80211_CHAN_NO_HE))
24a2042c
RM		 3099 return;
3100
65be6aa3
JB		 3101 sband = sdata->local->hw.wiphy->bands[NL80211_BAND_6GHZ];
3102
24a2042c 3103 iftd = ieee80211_get_sband_iftype_data(sband, iftype);
65be6aa3 3104 if (!iftd)
24a2042c
RM		 3105 return;
3106
65ad3ef9
RM		 3107 /* Check for device HE 6 GHz capability before adding element */
3108 if (!iftd->he_6ghz_capa.capa)
3109 return;
3110
24a2042c
RM		 3111 cap = le16_to_cpu(iftd->he_6ghz_capa.capa);
3112 cap &= ~IEEE80211_HE_6GHZ_CAP_SM_PS;
3113
abd27d06 3114 switch (smps_mode) {
24a2042c
RM		 3115 case IEEE80211_SMPS_AUTOMATIC:
3116 case IEEE80211_SMPS_NUM_MODES:
3117 WARN_ON(1);
fc0561dc 3118 fallthrough;
24a2042c
RM		 3119 case IEEE80211_SMPS_OFF:
3120 cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DISABLED,
3121 IEEE80211_HE_6GHZ_CAP_SM_PS);
3122 break;
3123 case IEEE80211_SMPS_STATIC:
3124 cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_STATIC,
3125 IEEE80211_HE_6GHZ_CAP_SM_PS);
3126 break;
3127 case IEEE80211_SMPS_DYNAMIC:
3128 cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DYNAMIC,
3129 IEEE80211_HE_6GHZ_CAP_SM_PS);
3130 break;
3131 }
3132
3133 pos = skb_put(skb, 2 + 1 + sizeof(cap));
2ad2274c
IP		 3134 ieee80211_write_he_6ghz_cap(pos, cpu_to_le16(cap),
3135 pos + 2 + 1 + sizeof(cap));
24a2042c
RM		 3136}
3137
074d46d1 3138u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
4bf88530 3139 const struct cfg80211_chan_def *chandef,
57f255f5 3140 u16 prot_mode, bool rifs_mode)
42e7aa77 3141{
074d46d1 3142 struct ieee80211_ht_operation *ht_oper;
42e7aa77 3143 /* Build HT Information */
074d46d1
JB		 3144 *pos++ = WLAN_EID_HT_OPERATION;
3145 *pos++ = sizeof(struct ieee80211_ht_operation);
3146 ht_oper = (struct ieee80211_ht_operation *)pos;
4bf88530
JB		 3147 ht_oper->primary_chan = ieee80211_frequency_to_channel(
3148 chandef->chan->center_freq);
3149 switch (chandef->width) {
3150 case NL80211_CHAN_WIDTH_160:
3151 case NL80211_CHAN_WIDTH_80P80:
3152 case NL80211_CHAN_WIDTH_80:
3153 case NL80211_CHAN_WIDTH_40:
3154 if (chandef->center_freq1 > chandef->chan->center_freq)
3155 ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
3156 else
3157 ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
42e7aa77 3158 break;
5dca295d
IP		 3159 case NL80211_CHAN_WIDTH_320:
3160 /* HT information element should not be included on 6GHz */
3161 WARN_ON(1);
3162 return pos;
42e7aa77 3163 default:
074d46d1 3164 ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE;
42e7aa77
AS		 3165 break;
3166 }
aee286c2 3167 if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 &&
4bf88530
JB		 3168 chandef->width != NL80211_CHAN_WIDTH_20_NOHT &&
3169 chandef->width != NL80211_CHAN_WIDTH_20)
074d46d1 3170 ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
ff3cc5f4 3171
57f255f5
AN		 3172 if (rifs_mode)
3173 ht_oper->ht_param |= IEEE80211_HT_PARAM_RIFS_MODE;
3174
431e3154 3175 ht_oper->operation_mode = cpu_to_le16(prot_mode);
074d46d1 3176 ht_oper->stbc_param = 0x0000;
42e7aa77
AS		 3177
3178 /* It seems that Basic MCS set and Supported MCS set
3179 are identical for the first 10 bytes */
074d46d1
JB		 3180 memset(&ht_oper->basic_set, 0, 16);
3181 memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10);
42e7aa77 3182
074d46d1 3183 return pos + sizeof(struct ieee80211_ht_operation);
42e7aa77
AS		 3184}
3185
75d627d5
SW		 3186void ieee80211_ie_build_wide_bw_cs(u8 *pos,
3187 const struct cfg80211_chan_def *chandef)
3188{
3189 *pos++ = WLAN_EID_WIDE_BW_CHANNEL_SWITCH; /* EID */
3190 *pos++ = 3; /* IE length */
3191 /* New channel width */
3192 switch (chandef->width) {
3193 case NL80211_CHAN_WIDTH_80:
3194 *pos++ = IEEE80211_VHT_CHANWIDTH_80MHZ;
3195 break;
3196 case NL80211_CHAN_WIDTH_160:
3197 *pos++ = IEEE80211_VHT_CHANWIDTH_160MHZ;
3198 break;
3199 case NL80211_CHAN_WIDTH_80P80:
3200 *pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ;
3201 break;
5dca295d
IP		 3202 case NL80211_CHAN_WIDTH_320:
3203 /* The behavior is not defined for 320 MHz channels */
3204 WARN_ON(1);
3205 fallthrough;
75d627d5
SW		 3206 default:
3207 *pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT;
3208 }
3209
3210 /* new center frequency segment 0 */
3211 *pos++ = ieee80211_frequency_to_channel(chandef->center_freq1);
3212 /* new center frequency segment 1 */
3213 if (chandef->center_freq2)
3214 *pos++ = ieee80211_frequency_to_channel(chandef->center_freq2);
3215 else
3216 *pos++ = 0;
3217}
3218
fb28ec0c
AN		 3219u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
3220 const struct cfg80211_chan_def *chandef)
3221{
3222 struct ieee80211_vht_operation *vht_oper;
3223
3224 *pos++ = WLAN_EID_VHT_OPERATION;
3225 *pos++ = sizeof(struct ieee80211_vht_operation);
3226 vht_oper = (struct ieee80211_vht_operation *)pos;
2fb51c35 3227 vht_oper->center_freq_seg0_idx = ieee80211_frequency_to_channel(
fb28ec0c
AN		 3228 chandef->center_freq1);
3229 if (chandef->center_freq2)
2fb51c35 3230 vht_oper->center_freq_seg1_idx =
fb28ec0c 3231 ieee80211_frequency_to_channel(chandef->center_freq2);
f020ae40 3232 else
2fb51c35 3233 vht_oper->center_freq_seg1_idx = 0x00;
fb28ec0c
AN		 3234
3235 switch (chandef->width) {
3236 case NL80211_CHAN_WIDTH_160:
23665aaf
JM		 3237 /*
3238 * Convert 160 MHz channel width to new style as interop
3239 * workaround.
3240 */
3241 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
2fb51c35 3242 vht_oper->center_freq_seg1_idx = vht_oper->center_freq_seg0_idx;
23665aaf 3243 if (chandef->chan->center_freq < chandef->center_freq1)
2fb51c35 3244 vht_oper->center_freq_seg0_idx -= 8;
23665aaf 3245 else
2fb51c35 3246 vht_oper->center_freq_seg0_idx += 8;
fb28ec0c
AN		 3247 break;
3248 case NL80211_CHAN_WIDTH_80P80:
23665aaf
JM		 3249 /*
3250 * Convert 80+80 MHz channel width to new style as interop
3251 * workaround.
3252 */
3253 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
fb28ec0c
AN		 3254 break;
3255 case NL80211_CHAN_WIDTH_80:
3256 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
3257 break;
5dca295d
IP		 3258 case NL80211_CHAN_WIDTH_320:
3259 /* VHT information element should not be included on 6GHz */
3260 WARN_ON(1);
3261 return pos;
fb28ec0c
AN		 3262 default:
3263 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT;
3264 break;
3265 }
3266
3267 /* don't require special VHT peer rates */
3268 vht_oper->basic_mcs_set = cpu_to_le16(0xffff);
3269
3270 return pos + sizeof(struct ieee80211_vht_operation);
3271}
3272
d1b7524b 3273u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef)
60ad72da
SE		 3274{
3275 struct ieee80211_he_operation *he_oper;
d1b7524b 3276 struct ieee80211_he_6ghz_oper *he_6ghz_op;
60ad72da 3277 u32 he_oper_params;
d1b7524b
RM		 3278 u8 ie_len = 1 + sizeof(struct ieee80211_he_operation);
3279
3280 if (chandef->chan->band == NL80211_BAND_6GHZ)
3281 ie_len += sizeof(struct ieee80211_he_6ghz_oper);
60ad72da
SE		 3282
3283 *pos++ = WLAN_EID_EXTENSION;
d1b7524b 3284 *pos++ = ie_len;
60ad72da
SE		 3285 *pos++ = WLAN_EID_EXT_HE_OPERATION;
3286
3287 he_oper_params = 0;
3288 he_oper_params |= u32_encode_bits(1023, /* disabled */
3289 IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK);
3290 he_oper_params |= u32_encode_bits(1,
3291 IEEE80211_HE_OPERATION_ER_SU_DISABLE);
3292 he_oper_params |= u32_encode_bits(1,
3293 IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED);
d1b7524b
RM		 3294 if (chandef->chan->band == NL80211_BAND_6GHZ)
3295 he_oper_params |= u32_encode_bits(1,
3296 IEEE80211_HE_OPERATION_6GHZ_OP_INFO);
60ad72da
SE		 3297
3298 he_oper = (struct ieee80211_he_operation *)pos;
3299 he_oper->he_oper_params = cpu_to_le32(he_oper_params);
3300
3301 /* don't require special HE peer rates */
3302 he_oper->he_mcs_nss_set = cpu_to_le16(0xffff);
d1b7524b 3303 pos += sizeof(struct ieee80211_he_operation);
60ad72da 3304
d1b7524b
RM		 3305 if (chandef->chan->band != NL80211_BAND_6GHZ)
3306 goto out;
60ad72da 3307
d1b7524b
RM		 3308 /* TODO add VHT operational */
3309 he_6ghz_op = (struct ieee80211_he_6ghz_oper *)pos;
3310 he_6ghz_op->minrate = 6; /* 6 Mbps */
3311 he_6ghz_op->primary =
3312 ieee80211_frequency_to_channel(chandef->chan->center_freq);
3313 he_6ghz_op->ccfs0 =
3314 ieee80211_frequency_to_channel(chandef->center_freq1);
3315 if (chandef->center_freq2)
3316 he_6ghz_op->ccfs1 =
3317 ieee80211_frequency_to_channel(chandef->center_freq2);
3318 else
3319 he_6ghz_op->ccfs1 = 0;
3320
3321 switch (chandef->width) {
5dca295d
IP		 3322 case NL80211_CHAN_WIDTH_320:
3323 /*
3324 * TODO: mesh operation is not defined over 6GHz 320 MHz
3325 * channels.
3326 */
3327 WARN_ON(1);
3328 break;
d1b7524b
RM		 3329 case NL80211_CHAN_WIDTH_160:
3330 /* Convert 160 MHz channel width to new style as interop
3331 * workaround.
3332 */
3333 he_6ghz_op->control =
3334 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ;
3335 he_6ghz_op->ccfs1 = he_6ghz_op->ccfs0;
3336 if (chandef->chan->center_freq < chandef->center_freq1)
3337 he_6ghz_op->ccfs0 -= 8;
3338 else
3339 he_6ghz_op->ccfs0 += 8;
3340 fallthrough;
3341 case NL80211_CHAN_WIDTH_80P80:
3342 he_6ghz_op->control =
3343 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ;
3344 break;
3345 case NL80211_CHAN_WIDTH_80:
3346 he_6ghz_op->control =
3347 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ;
3348 break;
3349 case NL80211_CHAN_WIDTH_40:
3350 he_6ghz_op->control =
3351 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ;
3352 break;
3353 default:
3354 he_6ghz_op->control =
3355 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ;
3356 break;
3357 }
3358
3359 pos += sizeof(struct ieee80211_he_6ghz_oper);
3360
3361out:
3362 return pos;
60ad72da
SE		 3363}
3364
8ac3c704
JB		 3365bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
3366 struct cfg80211_chan_def *chandef)
42e7aa77
AS		 3367{
3368 enum nl80211_channel_type channel_type;
3369
8ac3c704
JB		 3370 if (!ht_oper)
3371 return false;
42e7aa77 3372
074d46d1 3373 switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
42e7aa77
AS		 3374 case IEEE80211_HT_PARAM_CHA_SEC_NONE:
3375 channel_type = NL80211_CHAN_HT20;
3376 break;
3377 case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
3378 channel_type = NL80211_CHAN_HT40PLUS;
3379 break;
3380 case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
3381 channel_type = NL80211_CHAN_HT40MINUS;
3382 break;
3383 default:
8ac3c704 3384 return false;
42e7aa77
AS		 3385 }
3386
8ac3c704
JB		 3387 cfg80211_chandef_create(chandef, chandef->chan, channel_type);
3388 return true;
42e7aa77
AS		 3389}
3390
2a333a0d 3391bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
7eb26df2
JB		 3392 const struct ieee80211_vht_operation *oper,
3393 const struct ieee80211_ht_operation *htop,
8ac3c704 3394 struct cfg80211_chan_def *chandef)
abcff6ef 3395{
8ac3c704 3396 struct cfg80211_chan_def new = *chandef;
7eb26df2
JB		 3397 int cf0, cf1;
3398 int ccfs0, ccfs1, ccfs2;
3399 int ccf0, ccf1;
33181ea7
SB		 3400 u32 vht_cap;
3401 bool support_80_80 = false;
3402 bool support_160 = false;
2a333a0d
JB		 3403 u8 ext_nss_bw_supp = u32_get_bits(vht_cap_info,
3404 IEEE80211_VHT_CAP_EXT_NSS_BW_MASK);
3405 u8 supp_chwidth = u32_get_bits(vht_cap_info,
3406 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK);
8ac3c704 3407
7eb26df2 3408 if (!oper || !htop)
8ac3c704 3409 return false;
abcff6ef 3410
33181ea7
SB		 3411 vht_cap = hw->wiphy->bands[chandef->chan->band]->vht_cap.cap;
3412 support_160 = (vht_cap & (IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK |
3413 IEEE80211_VHT_CAP_EXT_NSS_BW_MASK));
3414 support_80_80 = ((vht_cap &
3415 IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) ||
3416 (vht_cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ &&
3417 vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) ||
3418 ((vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) >>
3419 IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT > 1));
7eb26df2
JB		 3420 ccfs0 = oper->center_freq_seg0_idx;
3421 ccfs1 = oper->center_freq_seg1_idx;
3422 ccfs2 = (le16_to_cpu(htop->operation_mode) &
3423 IEEE80211_HT_OP_MODE_CCFS2_MASK)
3424 >> IEEE80211_HT_OP_MODE_CCFS2_SHIFT;
3425
7eb26df2 3426 ccf0 = ccfs0;
2a333a0d
JB		 3427
3428 /* if not supported, parse as though we didn't understand it */
3429 if (!ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW))
3430 ext_nss_bw_supp = 0;
3431
3432 /*
3433 * Cf. IEEE 802.11 Table 9-250
3434 *
3435 * We really just consider that because it's inefficient to connect
3436 * at a higher bandwidth than we'll actually be able to use.
3437 */
3438 switch ((supp_chwidth << 4) | ext_nss_bw_supp) {
3439 default:
3440 case 0x00:
3441 ccf1 = 0;
3442 support_160 = false;
3443 support_80_80 = false;
3444 break;
3445 case 0x01:
3446 support_80_80 = false;
fc0561dc 3447 fallthrough;
2a333a0d
JB		 3448 case 0x02:
3449 case 0x03:
7eb26df2 3450 ccf1 = ccfs2;
2a333a0d
JB		 3451 break;
3452 case 0x10:
3453 ccf1 = ccfs1;
3454 break;
3455 case 0x11:
3456 case 0x12:
3457 if (!ccfs1)
3458 ccf1 = ccfs2;
3459 else
3460 ccf1 = ccfs1;
3461 break;
3462 case 0x13:
3463 case 0x20:
3464 case 0x23:
3465 ccf1 = ccfs1;
3466 break;
3467 }
7eb26df2
JB		 3468
3469 cf0 = ieee80211_channel_to_frequency(ccf0, chandef->chan->band);
3470 cf1 = ieee80211_channel_to_frequency(ccf1, chandef->chan->band);
abcff6ef
JD		 3471
3472 switch (oper->chan_width) {
3473 case IEEE80211_VHT_CHANWIDTH_USE_HT:
7eb26df2 3474 /* just use HT information directly */
abcff6ef
JD		 3475 break;
3476 case IEEE80211_VHT_CHANWIDTH_80MHZ:
8ac3c704 3477 new.width = NL80211_CHAN_WIDTH_80;
7eb26df2 3478 new.center_freq1 = cf0;
23665aaf 3479 /* If needed, adjust based on the newer interop workaround. */
7eb26df2 3480 if (ccf1) {
23665aaf
JM		 3481 unsigned int diff;
3482
7eb26df2 3483 diff = abs(ccf1 - ccf0);
33181ea7 3484 if ((diff == 8) && support_160) {
23665aaf 3485 new.width = NL80211_CHAN_WIDTH_160;
7eb26df2 3486 new.center_freq1 = cf1;
33181ea7 3487 } else if ((diff > 8) && support_80_80) {
23665aaf 3488 new.width = NL80211_CHAN_WIDTH_80P80;
7eb26df2 3489 new.center_freq2 = cf1;
23665aaf
JM		 3490 }
3491 }
abcff6ef
JD		 3492 break;
3493 case IEEE80211_VHT_CHANWIDTH_160MHZ:
7eb26df2 3494 /* deprecated encoding */
8ac3c704 3495 new.width = NL80211_CHAN_WIDTH_160;
7eb26df2 3496 new.center_freq1 = cf0;
abcff6ef
JD		 3497 break;
3498 case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
7eb26df2 3499 /* deprecated encoding */
8ac3c704 3500 new.width = NL80211_CHAN_WIDTH_80P80;
7eb26df2
JB		 3501 new.center_freq1 = cf0;
3502 new.center_freq2 = cf1;
abcff6ef
JD		 3503 break;
3504 default:
8ac3c704 3505 return false;
abcff6ef
JD		 3506 }
3507
8ac3c704
JB		 3508 if (!cfg80211_chandef_valid(&new))
3509 return false;
3510
3511 *chandef = new;
3512 return true;
abcff6ef
JD		 3513}
3514
1e0b3b0b
IP		 3515void ieee80211_chandef_eht_oper(struct ieee80211_sub_if_data *sdata,
3516 const struct ieee80211_eht_operation *eht_oper,
3517 bool support_160, bool support_320,
3518 struct cfg80211_chan_def *chandef)
3519{
3520 struct ieee80211_eht_operation_info *info = (void *)eht_oper->optional;
3521
3522 chandef->center_freq1 =
3523 ieee80211_channel_to_frequency(info->ccfs0,
3524 chandef->chan->band);
3525
3526 switch (u8_get_bits(info->control,
3527 IEEE80211_EHT_OPER_CHAN_WIDTH)) {
3528 case IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ:
3529 chandef->width = NL80211_CHAN_WIDTH_20;
3530 break;
3531 case IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ:
3532 chandef->width = NL80211_CHAN_WIDTH_40;
3533 break;
3534 case IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ:
3535 chandef->width = NL80211_CHAN_WIDTH_80;
3536 break;
3537 case IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ:
3538 if (support_160) {
3539 chandef->width = NL80211_CHAN_WIDTH_160;
3540 chandef->center_freq1 =
3541 ieee80211_channel_to_frequency(info->ccfs1,
3542 chandef->chan->band);
3543 } else {
3544 chandef->width = NL80211_CHAN_WIDTH_80;
3545 }
3546 break;
3547 case IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ:
3548 if (support_320) {
3549 chandef->width = NL80211_CHAN_WIDTH_320;
3550 chandef->center_freq1 =
3551 ieee80211_channel_to_frequency(info->ccfs1,
3552 chandef->chan->band);
3553 } else if (support_160) {
3554 chandef->width = NL80211_CHAN_WIDTH_160;
3555 } else {
3556 chandef->width = NL80211_CHAN_WIDTH_80;
3557
3558 if (chandef->center_freq1 > chandef->chan->center_freq)
3559 chandef->center_freq1 -= 40;
3560 else
3561 chandef->center_freq1 += 40;
3562 }
3563 break;
3564 }
3565}
3566
57fa5e85
JB		 3567bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
3568 const struct ieee80211_he_operation *he_oper,
5dca295d 3569 const struct ieee80211_eht_operation *eht_oper,
57fa5e85
JB		 3570 struct cfg80211_chan_def *chandef)
3571{
3572 struct ieee80211_local *local = sdata->local;
3573 struct ieee80211_supported_band *sband;
3574 enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif);
3575 const struct ieee80211_sta_he_cap *he_cap;
5dca295d 3576 const struct ieee80211_sta_eht_cap *eht_cap;
57fa5e85
JB		 3577 struct cfg80211_chan_def he_chandef = *chandef;
3578 const struct ieee80211_he_6ghz_oper *he_6ghz_oper;
cb751b7a 3579 struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
5dca295d
IP		 3580 bool support_80_80, support_160, support_320;
3581 u8 he_phy_cap, eht_phy_cap;
57fa5e85
JB		 3582 u32 freq;
3583
3584 if (chandef->chan->band != NL80211_BAND_6GHZ)
3585 return true;
3586
3587 sband = local->hw.wiphy->bands[NL80211_BAND_6GHZ];
3588
3589 he_cap = ieee80211_get_he_iftype_cap(sband, iftype);
3590 if (!he_cap) {
3591 sdata_info(sdata, "Missing iftype sband data/HE cap");
3592 return false;
3593 }
3594
3595 he_phy_cap = he_cap->he_cap_elem.phy_cap_info[0];
3596 support_160 =
3597 he_phy_cap &
3598 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G;
3599 support_80_80 =
3600 he_phy_cap &
3601 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G;
3602
3603 if (!he_oper) {
3604 sdata_info(sdata,
3605 "HE is not advertised on (on %d MHz), expect issues\n",
3606 chandef->chan->center_freq);
3607 return false;
3608 }
3609
5dca295d
IP		 3610 eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype);
3611 if (!eht_cap) {
3612 sdata_info(sdata, "Missing iftype sband data/EHT cap");
3613 eht_oper = NULL;
3614 }
3615
57fa5e85
JB		 3616 he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper);
3617
3618 if (!he_6ghz_oper) {
3619 sdata_info(sdata,
3620 "HE 6GHz operation missing (on %d MHz), expect issues\n",
3621 chandef->chan->center_freq);
3622 return false;
3623 }
3624
5dca295d
IP		 3625 /*
3626 * The EHT operation IE does not contain the primary channel so the
3627 * primary channel frequency should be taken from the 6 GHz operation
3628 * information.
3629 */
57fa5e85
JB		 3630 freq = ieee80211_channel_to_frequency(he_6ghz_oper->primary,
3631 NL80211_BAND_6GHZ);
3632 he_chandef.chan = ieee80211_get_channel(sdata->local->hw.wiphy, freq);
3633
cb751b7a
WG		 3634 switch (u8_get_bits(he_6ghz_oper->control,
3635 IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO)) {
3636 case IEEE80211_6GHZ_CTRL_REG_LPI_AP:
3637 bss_conf->power_type = IEEE80211_REG_LPI_AP;
3638 break;
3639 case IEEE80211_6GHZ_CTRL_REG_SP_AP:
3640 bss_conf->power_type = IEEE80211_REG_SP_AP;
3641 break;
3642 default:
3643 bss_conf->power_type = IEEE80211_REG_UNSET_AP;
3644 break;
3645 }
3646
1e0b3b0b
IP		 3647 if (!eht_oper ||
3648 !(eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT)) {
5dca295d
IP		 3649 switch (u8_get_bits(he_6ghz_oper->control,
3650 IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) {
3651 case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ:
3652 he_chandef.width = NL80211_CHAN_WIDTH_20;
3653 break;
3654 case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ:
3655 he_chandef.width = NL80211_CHAN_WIDTH_40;
3656 break;
3657 case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ:
3658 he_chandef.width = NL80211_CHAN_WIDTH_80;
3659 break;
3660 case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ:
3661 he_chandef.width = NL80211_CHAN_WIDTH_80;
3662 if (!he_6ghz_oper->ccfs1)
3663 break;
3664 if (abs(he_6ghz_oper->ccfs1 - he_6ghz_oper->ccfs0) == 8) {
3665 if (support_160)
3666 he_chandef.width = NL80211_CHAN_WIDTH_160;
3667 } else {
3668 if (support_80_80)
3669 he_chandef.width = NL80211_CHAN_WIDTH_80P80;
3670 }
3671 break;
3672 }
3673
3674 if (he_chandef.width == NL80211_CHAN_WIDTH_160) {
3675 he_chandef.center_freq1 =
3676 ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1,
3677 NL80211_BAND_6GHZ);
3678 } else {
3679 he_chandef.center_freq1 =
3680 ieee80211_channel_to_frequency(he_6ghz_oper->ccfs0,
3681 NL80211_BAND_6GHZ);
3682 if (support_80_80 || support_160)
3683 he_chandef.center_freq2 =
3684 ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1,
3685 NL80211_BAND_6GHZ);
3686 }
3687 } else {
3688 eht_phy_cap = eht_cap->eht_cap_elem.phy_cap_info[0];
3689 support_320 =
3690 eht_phy_cap & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ;
3691
1e0b3b0b
IP		 3692 ieee80211_chandef_eht_oper(sdata, eht_oper, support_160,
3693 support_320, &he_chandef);
57fa5e85
JB		 3694 }
3695
3696 if (!cfg80211_chandef_valid(&he_chandef)) {
3697 sdata_info(sdata,
3698 "HE 6GHz operation resulted in invalid chandef: %d MHz/%d/%d MHz/%d MHz\n",
3699 he_chandef.chan ? he_chandef.chan->center_freq : 0,
3700 he_chandef.width,
3701 he_chandef.center_freq1,
3702 he_chandef.center_freq2);
3703 return false;
3704 }
3705
3706 *chandef = he_chandef;
3707
8fca2b87 3708 return true;
1d00ce80
TP		 3709}
3710
3711bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
3712 struct cfg80211_chan_def *chandef)
3713{
3714 u32 oper_freq;
3715
3716 if (!oper)
3717 return false;
3718
3719 switch (FIELD_GET(S1G_OPER_CH_WIDTH_OPER, oper->ch_width)) {
3720 case IEEE80211_S1G_CHANWIDTH_1MHZ:
3721 chandef->width = NL80211_CHAN_WIDTH_1;
3722 break;
3723 case IEEE80211_S1G_CHANWIDTH_2MHZ:
3724 chandef->width = NL80211_CHAN_WIDTH_2;
3725 break;
3726 case IEEE80211_S1G_CHANWIDTH_4MHZ:
3727 chandef->width = NL80211_CHAN_WIDTH_4;
3728 break;
3729 case IEEE80211_S1G_CHANWIDTH_8MHZ:
3730 chandef->width = NL80211_CHAN_WIDTH_8;
3731 break;
3732 case IEEE80211_S1G_CHANWIDTH_16MHZ:
3733 chandef->width = NL80211_CHAN_WIDTH_16;
3734 break;
3735 default:
3736 return false;
3737 }
3738
3739 oper_freq = ieee80211_channel_to_freq_khz(oper->oper_ch,
3740 NL80211_BAND_S1GHZ);
3741 chandef->center_freq1 = KHZ_TO_MHZ(oper_freq);
3742 chandef->freq1_offset = oper_freq % 1000;
3743
57fa5e85
JB		 3744 return true;
3745}
3746
3dc05935 3747int ieee80211_parse_bitrates(enum nl80211_chan_width width,
2103dec1
SW		 3748 const struct ieee80211_supported_band *sband,
3749 const u8 *srates, int srates_len, u32 *rates)
3750{
3dc05935
JB		 3751 u32 rate_flags = ieee80211_chanwidth_rate_flags(width);
3752 int shift = ieee80211_chanwidth_get_shift(width);
2103dec1
SW		 3753 struct ieee80211_rate *br;
3754 int brate, rate, i, j, count = 0;
3755
3756 *rates = 0;
3757
3758 for (i = 0; i < srates_len; i++) {
3759 rate = srates[i] & 0x7f;
3760
3761 for (j = 0; j < sband->n_bitrates; j++) {
3762 br = &sband->bitrates[j];
3763 if ((rate_flags & br->flags) != rate_flags)
3764 continue;
3765
3766 brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5);
3767 if (brate == rate) {
3768 *rates |= BIT(j);
3769 count++;
3770 break;
3771 }
3772 }
3773 }
3774 return count;
3775}
3776
fc8a7321 3777int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
6b77863b 3778 struct sk_buff *skb, bool need_basic,
57fbcce3 3779 enum nl80211_band band)
768db343 3780{
768db343
AN		 3781 struct ieee80211_local *local = sdata->local;
3782 struct ieee80211_supported_band *sband;
2103dec1 3783 int rate, shift;
768db343 3784 u8 i, rates, *pos;
fc8a7321 3785 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2103dec1 3786 u32 rate_flags;
768db343 3787
2103dec1
SW		 3788 shift = ieee80211_vif_get_shift(&sdata->vif);
3789 rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef);
6b77863b 3790 sband = local->hw.wiphy->bands[band];
2103dec1
SW		 3791 rates = 0;
3792 for (i = 0; i < sband->n_bitrates; i++) {
3793 if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
3794 continue;
3795 rates++;
3796 }
768db343
AN		 3797 if (rates > 8)
3798 rates = 8;
3799
3800 if (skb_tailroom(skb) < rates + 2)
3801 return -ENOMEM;
3802
3803 pos = skb_put(skb, rates + 2);
3804 *pos++ = WLAN_EID_SUPP_RATES;
3805 *pos++ = rates;
3806 for (i = 0; i < rates; i++) {
657c3e0c 3807 u8 basic = 0;
2103dec1
SW		 3808 if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
3809 continue;
3810
657c3e0c
AN		 3811 if (need_basic && basic_rates & BIT(i))
3812 basic = 0x80;
2103dec1
SW		 3813 rate = DIV_ROUND_UP(sband->bitrates[i].bitrate,
3814 5 * (1 << shift));
3815 *pos++ = basic | (u8) rate;
768db343
AN		 3816 }
3817
3818 return 0;
3819}
3820
fc8a7321 3821int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
6b77863b 3822 struct sk_buff *skb, bool need_basic,
57fbcce3 3823 enum nl80211_band band)
768db343 3824{
768db343
AN		 3825 struct ieee80211_local *local = sdata->local;
3826 struct ieee80211_supported_band *sband;
cc63ec76 3827 int rate, shift;
768db343 3828 u8 i, exrates, *pos;
fc8a7321 3829 u32 basic_rates = sdata->vif.bss_conf.basic_rates;
2103dec1
SW		 3830 u32 rate_flags;
3831
3832 rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef);
3833 shift = ieee80211_vif_get_shift(&sdata->vif);
768db343 3834
6b77863b 3835 sband = local->hw.wiphy->bands[band];
2103dec1
SW		 3836 exrates = 0;
3837 for (i = 0; i < sband->n_bitrates; i++) {
3838 if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
3839 continue;
3840 exrates++;
3841 }
3842
768db343
AN		 3843 if (exrates > 8)
3844 exrates -= 8;
3845 else
3846 exrates = 0;
3847
3848 if (skb_tailroom(skb) < exrates + 2)
3849 return -ENOMEM;
3850
3851 if (exrates) {
3852 pos = skb_put(skb, exrates + 2);
3853 *pos++ = WLAN_EID_EXT_SUPP_RATES;
3854 *pos++ = exrates;
3855 for (i = 8; i < sband->n_bitrates; i++) {
657c3e0c 3856 u8 basic = 0;
2103dec1
SW		 3857 if ((rate_flags & sband->bitrates[i].flags)
3858 != rate_flags)
3859 continue;
657c3e0c
AN		 3860 if (need_basic && basic_rates & BIT(i))
3861 basic = 0x80;
2103dec1
SW		 3862 rate = DIV_ROUND_UP(sband->bitrates[i].bitrate,
3863 5 * (1 << shift));
3864 *pos++ = basic | (u8) rate;
768db343
AN		 3865 }
3866 }
3867 return 0;
3868}
1dae27f8
WYG		 3869
3870int ieee80211_ave_rssi(struct ieee80211_vif *vif)
3871{
3872 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
1dae27f8 3873
bfd8403a 3874 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
be6bcabc 3875 return 0;
bfd8403a
JB		 3876
3877 return -ewma_beacon_signal_read(&sdata->deflink.u.mgd.ave_beacon_signal);
1dae27f8 3878}
0d8a0a17 3879EXPORT_SYMBOL_GPL(ieee80211_ave_rssi);
04ecd257
JB		 3880
3881u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs)
3882{
3883 if (!mcs)
3884 return 1;
3885
3886 /* TODO: consider rx_highest */
3887
3888 if (mcs->rx_mask[3])
3889 return 4;
3890 if (mcs->rx_mask[2])
3891 return 3;
3892 if (mcs->rx_mask[1])
3893 return 2;
3894 return 1;
3895}
f4bda337
TP		 3896
3897/**
3898 * ieee80211_calculate_rx_timestamp - calculate timestamp in frame
3899 * @local: mac80211 hw info struct
3900 * @status: RX status
3901 * @mpdu_len: total MPDU length (including FCS)
3902 * @mpdu_offset: offset into MPDU to calculate timestamp at
3903 *
3904 * This function calculates the RX timestamp at the given MPDU offset, taking
3905 * into account what the RX timestamp was. An offset of 0 will just normalize
3906 * the timestamp to TSF at beginning of MPDU reception.
3907 */
3908u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
3909 struct ieee80211_rx_status *status,
3910 unsigned int mpdu_len,
3911 unsigned int mpdu_offset)
3912{
3913 u64 ts = status->mactime;
3914 struct rate_info ri;
3915 u16 rate;
da388233 3916 u8 n_ltf;
f4bda337
TP		 3917
3918 if (WARN_ON(!ieee80211_have_rx_timestamp(status)))
3919 return 0;
3920
3921 memset(&ri, 0, sizeof(ri));
3922
35f4962c
JB		 3923 ri.bw = status->bw;
3924
f4bda337 3925 /* Fill cfg80211 rate info */
da6a4352 3926 switch (status->encoding) {
da388233
AS		 3927 case RX_ENC_HE:
3928 ri.flags |= RATE_INFO_FLAGS_HE_MCS;
3929 ri.mcs = status->rate_idx;
3930 ri.nss = status->nss;
3931 ri.he_ru_alloc = status->he_ru;
3932 if (status->enc_flags & RX_ENC_FLAG_SHORT_GI)
3933 ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
3934
3935 /*
3936 * See P802.11ax_D6.0, section 27.3.4 for
3937 * VHT PPDU format.
3938 */
3939 if (status->flag & RX_FLAG_MACTIME_PLCP_START) {
3940 mpdu_offset += 2;
3941 ts += 36;
3942
3943 /*
3944 * TODO:
3945 * For HE MU PPDU, add the HE-SIG-B.
3946 * For HE ER PPDU, add 8us for the HE-SIG-A.
3947 * For HE TB PPDU, add 4us for the HE-STF.
3948 * Add the HE-LTF durations - variable.
3949 */
3950 }
3951
3952 break;
da6a4352 3953 case RX_ENC_HT:
f4bda337
TP		 3954 ri.mcs = status->rate_idx;
3955 ri.flags |= RATE_INFO_FLAGS_MCS;
7fdd69c5 3956 if (status->enc_flags & RX_ENC_FLAG_SHORT_GI)
f4bda337 3957 ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
da388233
AS		 3958
3959 /*
3960 * See P802.11REVmd_D3.0, section 19.3.2 for
3961 * HT PPDU format.
3962 */
3963 if (status->flag & RX_FLAG_MACTIME_PLCP_START) {
3964 mpdu_offset += 2;
3965 if (status->enc_flags & RX_ENC_FLAG_HT_GF)
3966 ts += 24;
3967 else
3968 ts += 32;
3969
3970 /*
3971 * Add Data HT-LTFs per streams
3972 * TODO: add Extension HT-LTFs, 4us per LTF
3973 */
3974 n_ltf = ((ri.mcs >> 3) & 3) + 1;
3975 n_ltf = n_ltf == 3 ? 4 : n_ltf;
3976 ts += n_ltf * 4;
3977 }
3978
da6a4352
JB		 3979 break;
3980 case RX_ENC_VHT:
5614618e
JB		 3981 ri.flags |= RATE_INFO_FLAGS_VHT_MCS;
3982 ri.mcs = status->rate_idx;
8613c948 3983 ri.nss = status->nss;
7fdd69c5 3984 if (status->enc_flags & RX_ENC_FLAG_SHORT_GI)
5614618e 3985 ri.flags |= RATE_INFO_FLAGS_SHORT_GI;
da388233
AS		 3986
3987 /*
3988 * See P802.11REVmd_D3.0, section 21.3.2 for
3989 * VHT PPDU format.
3990 */
3991 if (status->flag & RX_FLAG_MACTIME_PLCP_START) {
3992 mpdu_offset += 2;
3993 ts += 36;
3994
3995 /*
3996 * Add VHT-LTFs per streams
3997 */
3998 n_ltf = (ri.nss != 1) && (ri.nss % 2) ?
3999 ri.nss + 1 : ri.nss;
4000 ts += 4 * n_ltf;
4001 }
4002
da6a4352
JB		 4003 break;
4004 default:
4005 WARN_ON(1);
fc0561dc 4006 fallthrough;
da6a4352 4007 case RX_ENC_LEGACY: {
f4bda337 4008 struct ieee80211_supported_band *sband;
2103dec1
SW		 4009 int shift = 0;
4010 int bitrate;
4011
da6a4352
JB		 4012 switch (status->bw) {
4013 case RATE_INFO_BW_10:
2103dec1 4014 shift = 1;
da6a4352
JB		 4015 break;
4016 case RATE_INFO_BW_5:
2103dec1 4017 shift = 2;
da6a4352 4018 break;
b51f3bee 4019 }
f4bda337
TP		 4020
4021 sband = local->hw.wiphy->bands[status->band];
2103dec1
SW		 4022 bitrate = sband->bitrates[status->rate_idx].bitrate;
4023 ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift));
f4a0f0c5
JB		 4024
4025 if (status->flag & RX_FLAG_MACTIME_PLCP_START) {
57fbcce3 4026 if (status->band == NL80211_BAND_5GHZ) {
f4a0f0c5
JB		 4027 ts += 20 << shift;
4028 mpdu_offset += 2;
7fdd69c5 4029 } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) {
f4a0f0c5
JB		 4030 ts += 96;
4031 } else {
4032 ts += 192;
4033 }
4034 }
da6a4352
JB		 4035 break;
4036 }
f4bda337
TP		 4037 }
4038
4039 rate = cfg80211_calculate_bitrate(&ri);
d86aa4f8 4040 if (WARN_ONCE(!rate,
f980ebc0
SS		 4041 "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n",
4042 (unsigned long long)status->flag, status->rate_idx,
8613c948 4043 status->nss))
d86aa4f8 4044 return 0;
f4bda337
TP		 4045
4046 /* rewind from end of MPDU */
4047 if (status->flag & RX_FLAG_MACTIME_END)
4048 ts -= mpdu_len * 8 * 10 / rate;
4049
4050 ts += mpdu_offset * 8 * 10 / rate;
4051
4052 return ts;
4053}
164eb02d
SW		 4054
4055void ieee80211_dfs_cac_cancel(struct ieee80211_local *local)
4056{
4057 struct ieee80211_sub_if_data *sdata;
d2859df5 4058 struct cfg80211_chan_def chandef;
164eb02d 4059
4a199068 4060 /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */
a05829a7 4061 lockdep_assert_wiphy(local->hw.wiphy);
4a199068 4062
34a3740d 4063 mutex_lock(&local->mtx);
164eb02d 4064 list_for_each_entry(sdata, &local->interfaces, list) {
34a3740d
JB		 4065 /* it might be waiting for the local->mtx, but then
4066 * by the time it gets it, sdata->wdev.cac_started
4067 * will no longer be true
4068 */
bfd8403a 4069 cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work);
164eb02d
SW		 4070
4071 if (sdata->wdev.cac_started) {
d2859df5 4072 chandef = sdata->vif.bss_conf.chandef;
d8675a63 4073 ieee80211_link_release_channel(&sdata->deflink);
164eb02d 4074 cfg80211_cac_event(sdata->dev,
d2859df5 4075 &chandef,
164eb02d
SW		 4076 NL80211_RADAR_CAC_ABORTED,
4077 GFP_KERNEL);
4078 }
4079 }
34a3740d 4080 mutex_unlock(&local->mtx);
164eb02d
SW		 4081}
4082
4083void ieee80211_dfs_radar_detected_work(struct work_struct *work)
4084{
4085 struct ieee80211_local *local =
4086 container_of(work, struct ieee80211_local, radar_detected_work);
84a3d1c9 4087 struct cfg80211_chan_def chandef = local->hw.conf.chandef;
486cf4c0
MK		 4088 struct ieee80211_chanctx *ctx;
4089 int num_chanctx = 0;
4090
4091 mutex_lock(&local->chanctx_mtx);
4092 list_for_each_entry(ctx, &local->chanctx_list, list) {
4093 if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER)
4094 continue;
4095
4096 num_chanctx++;
4097 chandef = ctx->conf.def;
4098 }
4099 mutex_unlock(&local->chanctx_mtx);
164eb02d 4100
a05829a7 4101 wiphy_lock(local->hw.wiphy);
164eb02d 4102 ieee80211_dfs_cac_cancel(local);
a05829a7 4103 wiphy_unlock(local->hw.wiphy);
164eb02d 4104
486cf4c0
MK		 4105 if (num_chanctx > 1)
4106 /* XXX: multi-channel is not supported yet */
164eb02d 4107 WARN_ON(1);
84a3d1c9 4108 else
164eb02d 4109 cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL);
164eb02d
SW		 4110}
4111
4112void ieee80211_radar_detected(struct ieee80211_hw *hw)
4113{
4114 struct ieee80211_local *local = hw_to_local(hw);
4115
4116 trace_api_radar_detected(local);
4117
4a199068 4118 schedule_work(&local->radar_detected_work);
164eb02d
SW		 4119}
4120EXPORT_SYMBOL(ieee80211_radar_detected);
e6b7cde4 4121
ba323e29 4122ieee80211_conn_flags_t ieee80211_chandef_downgrade(struct cfg80211_chan_def *c)
e6b7cde4 4123{
ba323e29 4124 ieee80211_conn_flags_t ret;
e6b7cde4
SW		 4125 int tmp;
4126
4127 switch (c->width) {
4128 case NL80211_CHAN_WIDTH_20:
4129 c->width = NL80211_CHAN_WIDTH_20_NOHT;
ba323e29 4130 ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT;
e6b7cde4
SW		 4131 break;
4132 case NL80211_CHAN_WIDTH_40:
4133 c->width = NL80211_CHAN_WIDTH_20;
4134 c->center_freq1 = c->chan->center_freq;
ba323e29
JB		 4135 ret = IEEE80211_CONN_DISABLE_40MHZ |
4136 IEEE80211_CONN_DISABLE_VHT;
e6b7cde4
SW		 4137 break;
4138 case NL80211_CHAN_WIDTH_80:
4139 tmp = (30 + c->chan->center_freq - c->center_freq1)/20;
4140 /* n_P40 */
4141 tmp /= 2;
4142 /* freq_P40 */
4143 c->center_freq1 = c->center_freq1 - 20 + 40 * tmp;
4144 c->width = NL80211_CHAN_WIDTH_40;
ba323e29 4145 ret = IEEE80211_CONN_DISABLE_VHT;
e6b7cde4
SW		 4146 break;
4147 case NL80211_CHAN_WIDTH_80P80:
4148 c->center_freq2 = 0;
4149 c->width = NL80211_CHAN_WIDTH_80;
ba323e29
JB		 4150 ret = IEEE80211_CONN_DISABLE_80P80MHZ |
4151 IEEE80211_CONN_DISABLE_160MHZ;
e6b7cde4
SW		 4152 break;
4153 case NL80211_CHAN_WIDTH_160:
4154 /* n_P20 */
4155 tmp = (70 + c->chan->center_freq - c->center_freq1)/20;
4156 /* n_P80 */
4157 tmp /= 4;
4158 c->center_freq1 = c->center_freq1 - 40 + 80 * tmp;
4159 c->width = NL80211_CHAN_WIDTH_80;
ba323e29
JB		 4160 ret = IEEE80211_CONN_DISABLE_80P80MHZ |
4161 IEEE80211_CONN_DISABLE_160MHZ;
e6b7cde4 4162 break;
5dca295d
IP		 4163 case NL80211_CHAN_WIDTH_320:
4164 /* n_P20 */
4165 tmp = (150 + c->chan->center_freq - c->center_freq1) / 20;
4166 /* n_P160 */
68608f99 4167 tmp /= 8;
5dca295d
IP		 4168 c->center_freq1 = c->center_freq1 - 80 + 160 * tmp;
4169 c->width = NL80211_CHAN_WIDTH_160;
ba323e29 4170 ret = IEEE80211_CONN_DISABLE_320MHZ;
5dca295d 4171 break;
e6b7cde4
SW		 4172 default:
4173 case NL80211_CHAN_WIDTH_20_NOHT:
4174 WARN_ON_ONCE(1);
4175 c->width = NL80211_CHAN_WIDTH_20_NOHT;
ba323e29 4176 ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT;
e6b7cde4 4177 break;
df78a0c0
TP		 4178 case NL80211_CHAN_WIDTH_1:
4179 case NL80211_CHAN_WIDTH_2:
4180 case NL80211_CHAN_WIDTH_4:
4181 case NL80211_CHAN_WIDTH_8:
4182 case NL80211_CHAN_WIDTH_16:
e6b7cde4
SW		 4183 case NL80211_CHAN_WIDTH_5:
4184 case NL80211_CHAN_WIDTH_10:
4185 WARN_ON_ONCE(1);
4186 /* keep c->width */
ba323e29 4187 ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT;
e6b7cde4
SW		 4188 break;
4189 }
4190
4191 WARN_ON_ONCE(!cfg80211_chandef_valid(c));
4192
4193 return ret;
4194}
687da132
EG		 4195
4196/*
4197 * Returns true if smps_mode_new is strictly more restrictive than
4198 * smps_mode_old.
4199 */
4200bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
4201 enum ieee80211_smps_mode smps_mode_new)
4202{
4203 if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC ||
4204 smps_mode_new == IEEE80211_SMPS_AUTOMATIC))
4205 return false;
4206
4207 switch (smps_mode_old) {
4208 case IEEE80211_SMPS_STATIC:
4209 return false;
4210 case IEEE80211_SMPS_DYNAMIC:
4211 return smps_mode_new == IEEE80211_SMPS_STATIC;
4212 case IEEE80211_SMPS_OFF:
4213 return smps_mode_new != IEEE80211_SMPS_OFF;
4214 default:
4215 WARN_ON(1);
4216 }
4217
4218 return false;
4219}
c6da674a
CYY		 4220
4221int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
4222 struct cfg80211_csa_settings *csa_settings)
4223{
4224 struct sk_buff *skb;
4225 struct ieee80211_mgmt *mgmt;
4226 struct ieee80211_local *local = sdata->local;
4227 int freq;
4c121fd6
JB		 4228 int hdr_len = offsetofend(struct ieee80211_mgmt,
4229 u.action.u.chan_switch);
c6da674a
CYY		 4230 u8 *pos;
4231
4232 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
4233 sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
4234 return -EOPNOTSUPP;
4235
4236 skb = dev_alloc_skb(local->tx_headroom + hdr_len +
4237 5 + /* channel switch announcement element */
4238 3 + /* secondary channel offset element */
75d627d5 4239 5 + /* wide bandwidth channel switch announcement */
c6da674a
CYY		 4240 8); /* mesh channel switch parameters element */
4241 if (!skb)
4242 return -ENOMEM;
4243
4244 skb_reserve(skb, local->tx_headroom);
b080db58 4245 mgmt = skb_put_zero(skb, hdr_len);
c6da674a
CYY		 4246 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
4247 IEEE80211_STYPE_ACTION);
4248
4249 eth_broadcast_addr(mgmt->da);
4250 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
4251 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4252 memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
4253 } else {
4254 struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
4255 memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
4256 }
4257 mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
4258 mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH;
4259 pos = skb_put(skb, 5);
4260 *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */
4261 *pos++ = 3; /* IE length */
4262 *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */
4263 freq = csa_settings->chandef.chan->center_freq;
4264 *pos++ = ieee80211_frequency_to_channel(freq); /* channel */
4265 *pos++ = csa_settings->count; /* count */
4266
4267 if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) {
4268 enum nl80211_channel_type ch_type;
4269
4270 skb_put(skb, 3);
4271 *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */
4272 *pos++ = 1; /* IE length */
4273 ch_type = cfg80211_get_chandef_type(&csa_settings->chandef);
4274 if (ch_type == NL80211_CHAN_HT40PLUS)
4275 *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
4276 else
4277 *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
4278 }
4279
4280 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4281 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a
CYY		 4282
4283 skb_put(skb, 8);
4284 *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */
4285 *pos++ = 6; /* IE length */
4286 *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */
4287 *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */
4288 *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
4289 *pos++ |= csa_settings->block_tx ?
4290 WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00;
4291 put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */
4292 pos += 2;
ca91dc97 4293 put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */
c6da674a 4294 pos += 2;
c6da674a
CYY		 4295 }
4296
75d627d5
SW		 4297 if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_80 ||
4298 csa_settings->chandef.width == NL80211_CHAN_WIDTH_80P80 ||
4299 csa_settings->chandef.width == NL80211_CHAN_WIDTH_160) {
4300 skb_put(skb, 5);
4301 ieee80211_ie_build_wide_bw_cs(pos, &csa_settings->chandef);
4302 }
4303
c6da674a
CYY		 4304 ieee80211_tx_skb(sdata, skb);
4305 return 0;
4306}
2475b1cc 4307
a7022e65
FF		 4308static bool
4309ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i)
4310{
4311 s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1);
4312 int skip;
4313
4314 if (end > 0)
4315 return false;
4316
519ee691
JD		 4317 /* One shot NOA */
4318 if (data->count[i] == 1)
4319 return false;
4320
4321 if (data->desc[i].interval == 0)
4322 return false;
4323
a7022e65
FF		 4324 /* End time is in the past, check for repetitions */
4325 skip = DIV_ROUND_UP(-end, data->desc[i].interval);
4326 if (data->count[i] < 255) {
4327 if (data->count[i] <= skip) {
4328 data->count[i] = 0;
4329 return false;
4330 }
4331
4332 data->count[i] -= skip;
4333 }
4334
4335 data->desc[i].start += skip * data->desc[i].interval;
4336
4337 return true;
4338}
4339
4340static bool
4341ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf,
4342 s32 *offset)
4343{
4344 bool ret = false;
4345 int i;
4346
4347 for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) {
4348 s32 cur;
4349
4350 if (!data->count[i])
4351 continue;
4352
4353 if (ieee80211_extend_noa_desc(data, tsf + *offset, i))
4354 ret = true;
4355
4356 cur = data->desc[i].start - tsf;
4357 if (cur > *offset)
4358 continue;
4359
4360 cur = data->desc[i].start + data->desc[i].duration - tsf;
4361 if (cur > *offset)
4362 *offset = cur;
4363 }
4364
4365 return ret;
4366}
4367
4368static u32
4369ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf)
4370{
4371 s32 offset = 0;
4372 int tries = 0;
4373 /*
4374 * arbitrary limit, used to avoid infinite loops when combined NoA
4375 * descriptors cover the full time period.
4376 */
4377 int max_tries = 5;
4378
4379 ieee80211_extend_absent_time(data, tsf, &offset);
4380 do {
4381 if (!ieee80211_extend_absent_time(data, tsf, &offset))
4382 break;
4383
4384 tries++;
4385 } while (tries < max_tries);
4386
4387 return offset;
4388}
4389
4390void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf)
4391{
4392 u32 next_offset = BIT(31) - 1;
4393 int i;
4394
4395 data->absent = 0;
4396 data->has_next_tsf = false;
4397 for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) {
4398 s32 start;
4399
4400 if (!data->count[i])
4401 continue;
4402
4403 ieee80211_extend_noa_desc(data, tsf, i);
4404 start = data->desc[i].start - tsf;
4405 if (start <= 0)
4406 data->absent |= BIT(i);
4407
4408 if (next_offset > start)
4409 next_offset = start;
4410
4411 data->has_next_tsf = true;
4412 }
4413
4414 if (data->absent)
4415 next_offset = ieee80211_get_noa_absent_time(data, tsf);
4416
4417 data->next_tsf = tsf + next_offset;
4418}
4419EXPORT_SYMBOL(ieee80211_update_p2p_noa);
4420
4421int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr,
4422 struct ieee80211_noa_data *data, u32 tsf)
4423{
4424 int ret = 0;
4425 int i;
4426
4427 memset(data, 0, sizeof(*data));
4428
4429 for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) {
4430 const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i];
4431
4432 if (!desc->count || !desc->duration)
4433 continue;
4434
4435 data->count[i] = desc->count;
4436 data->desc[i].start = le32_to_cpu(desc->start_time);
4437 data->desc[i].duration = le32_to_cpu(desc->duration);
4438 data->desc[i].interval = le32_to_cpu(desc->interval);
4439
4440 if (data->count[i] > 1 &&
4441 data->desc[i].interval < data->desc[i].duration)
4442 continue;
4443
4444 ieee80211_extend_noa_desc(data, tsf, i);
4445 ret++;
4446 }
4447
4448 if (ret)
4449 ieee80211_update_p2p_noa(data, tsf);
4450
4451 return ret;
4452}
4453EXPORT_SYMBOL(ieee80211_parse_p2p_noa);
057d5f4b
TP		 4454
4455void ieee80211_recalc_dtim(struct ieee80211_local *local,
4456 struct ieee80211_sub_if_data *sdata)
4457{
4458 u64 tsf = drv_get_tsf(local, sdata);
4459 u64 dtim_count = 0;
4460 u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024;
4461 u8 dtim_period = sdata->vif.bss_conf.dtim_period;
4462 struct ps_data *ps;
4463 u8 bcns_from_dtim;
4464
4465 if (tsf == -1ULL || !beacon_int || !dtim_period)
4466 return;
4467
4468 if (sdata->vif.type == NL80211_IFTYPE_AP ||
4469 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
4470 if (!sdata->bss)
4471 return;
4472
4473 ps = &sdata->bss->ps;
4474 } else if (ieee80211_vif_is_mesh(&sdata->vif)) {
4475 ps = &sdata->u.mesh.ps;
4476 } else {
4477 return;
4478 }
4479
4480 /*
4481 * actually finds last dtim_count, mac80211 will update in
4482 * __beacon_add_tim().
4483 * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period
4484 */
4485 do_div(tsf, beacon_int);
4486 bcns_from_dtim = do_div(tsf, dtim_period);
4487 /* just had a DTIM */
4488 if (!bcns_from_dtim)
4489 dtim_count = 0;
4490 else
4491 dtim_count = dtim_period - bcns_from_dtim;
4492
4493 ps->dtim_count = dtim_count;
4494}
73de86a3 4495
71e6195e
MK		 4496static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local,
4497 struct ieee80211_chanctx *ctx)
4498{
b4f85443 4499 struct ieee80211_link_data *link;
71e6195e
MK		 4500 u8 radar_detect = 0;
4501
4502 lockdep_assert_held(&local->chanctx_mtx);
4503
4504 if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED))
4505 return 0;
4506
b4f85443
JB		 4507 list_for_each_entry(link, &ctx->reserved_links, reserved_chanctx_list)
4508 if (link->reserved_radar_required)
4509 radar_detect |= BIT(link->reserved_chandef.width);
71e6195e
MK		 4510
4511 /*
4512 * An in-place reservation context should not have any assigned vifs
4513 * until it replaces the other context.
4514 */
4515 WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER &&
b4f85443
JB		 4516 !list_empty(&ctx->assigned_links));
4517
4518 list_for_each_entry(link, &ctx->assigned_links, assigned_chanctx_list) {
b4f85443
JB		 4519 if (!link->radar_required)
4520 continue;
4521
4522 radar_detect |=
d8675a63 4523 BIT(link->conf->chandef.width);
b4f85443 4524 }
71e6195e
MK		 4525
4526 return radar_detect;
4527}
4528
73de86a3
LC		 4529int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
4530 const struct cfg80211_chan_def *chandef,
4531 enum ieee80211_chanctx_mode chanmode,
4532 u8 radar_detect)
4533{
4534 struct ieee80211_local *local = sdata->local;
4535 struct ieee80211_sub_if_data *sdata_iter;
4536 enum nl80211_iftype iftype = sdata->wdev.iftype;
73de86a3 4537 struct ieee80211_chanctx *ctx;
73de86a3 4538 int total = 1;
e227300c
PK		 4539 struct iface_combination_params params = {
4540 .radar_detect = radar_detect,
4541 };
73de86a3
LC		 4542
4543 lockdep_assert_held(&local->chanctx_mtx);
4544
4545 if (WARN_ON(hweight32(radar_detect) > 1))
4546 return -EINVAL;
4547
b6a55015
LC		 4548 if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED &&
4549 !chandef->chan))
73de86a3
LC		 4550 return -EINVAL;
4551
4552 if (WARN_ON(iftype >= NUM_NL80211_IFTYPES))
4553 return -EINVAL;
4554
ac668afe
JB		 4555 if (sdata->vif.type == NL80211_IFTYPE_AP ||
4556 sdata->vif.type == NL80211_IFTYPE_MESH_POINT) {
4557 /*
4558 * always passing this is harmless, since it'll be the
4559 * same value that cfg80211 finds if it finds the same
4560 * interface ... and that's always allowed
4561 */
4562 params.new_beacon_int = sdata->vif.bss_conf.beacon_int;
4563 }
4564
73de86a3 4565 /* Always allow software iftypes */
e6f40511 4566 if (cfg80211_iftype_allowed(local->hw.wiphy, iftype, 0, 1)) {
73de86a3
LC		 4567 if (radar_detect)
4568 return -EINVAL;
4569 return 0;
4570 }
4571
e227300c
PK		 4572 if (chandef)
4573 params.num_different_channels = 1;
73de86a3
LC		 4574
4575 if (iftype != NL80211_IFTYPE_UNSPECIFIED)
e227300c 4576 params.iftype_num[iftype] = 1;
73de86a3
LC		 4577
4578 list_for_each_entry(ctx, &local->chanctx_list, list) {
5bcae31d
MK		 4579 if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)
4580 continue;
e227300c
PK		 4581 params.radar_detect |=
4582 ieee80211_chanctx_radar_detect(local, ctx);
73de86a3 4583 if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) {
e227300c 4584 params.num_different_channels++;
73de86a3
LC		 4585 continue;
4586 }
b6a55015 4587 if (chandef && chanmode == IEEE80211_CHANCTX_SHARED &&
73de86a3
LC		 4588 cfg80211_chandef_compatible(chandef,
4589 &ctx->conf.def))
4590 continue;
e227300c 4591 params.num_different_channels++;
73de86a3
LC		 4592 }
4593
4594 list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) {
4595 struct wireless_dev *wdev_iter;
4596
4597 wdev_iter = &sdata_iter->wdev;
4598
4599 if (sdata_iter == sdata ||
0f611d28 4600 !ieee80211_sdata_running(sdata_iter) ||
e6f40511
MP		 4601 cfg80211_iftype_allowed(local->hw.wiphy,
4602 wdev_iter->iftype, 0, 1))
73de86a3
LC		 4603 continue;
4604
e227300c 4605 params.iftype_num[wdev_iter->iftype]++;
73de86a3
LC		 4606 total++;
4607 }
4608
e227300c 4609 if (total == 1 && !params.radar_detect)
73de86a3
LC		 4610 return 0;
4611
e227300c 4612 return cfg80211_check_combinations(local->hw.wiphy, &params);
73de86a3 4613}
6fa001bc
MK		 4614
4615static void
4616ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c,
4617 void *data)
4618{
4619 u32 *max_num_different_channels = data;
4620
4621 *max_num_different_channels = max(*max_num_different_channels,
4622 c->num_different_channels);
4623}
4624
4625int ieee80211_max_num_channels(struct ieee80211_local *local)
4626{
4627 struct ieee80211_sub_if_data *sdata;
6fa001bc 4628 struct ieee80211_chanctx *ctx;
6fa001bc
MK		 4629 u32 max_num_different_channels = 1;
4630 int err;
e227300c 4631 struct iface_combination_params params = {0};
6fa001bc
MK		 4632
4633 lockdep_assert_held(&local->chanctx_mtx);
4634
4635 list_for_each_entry(ctx, &local->chanctx_list, list) {
5bcae31d
MK		 4636 if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)
4637 continue;
4638
e227300c 4639 params.num_different_channels++;
6fa001bc 4640
e227300c
PK		 4641 params.radar_detect |=
4642 ieee80211_chanctx_radar_detect(local, ctx);
6fa001bc
MK		 4643 }
4644
4645 list_for_each_entry_rcu(sdata, &local->interfaces, list)
e227300c 4646 params.iftype_num[sdata->wdev.iftype]++;
6fa001bc 4647
e227300c
PK		 4648 err = cfg80211_iter_combinations(local->hw.wiphy, &params,
4649 ieee80211_iter_max_chans,
6fa001bc
MK		 4650 &max_num_different_channels);
4651 if (err < 0)
4652 return err;
4653
4654 return max_num_different_channels;
7957c6c8
TP		 4655}
4656
4657void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
4658 struct ieee80211_sta_s1g_cap *caps,
4659 struct sk_buff *skb)
4660{
4661 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
4662 struct ieee80211_s1g_cap s1g_capab;
4663 u8 *pos;
4664 int i;
4665
4666 if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
4667 return;
4668
4669 if (!caps->s1g)
4670 return;
4671
4672 memcpy(s1g_capab.capab_info, caps->cap, sizeof(caps->cap));
4673 memcpy(s1g_capab.supp_mcs_nss, caps->nss_mcs, sizeof(caps->nss_mcs));
4674
4675 /* override the capability info */
4676 for (i = 0; i < sizeof(ifmgd->s1g_capa.capab_info); i++) {
4677 u8 mask = ifmgd->s1g_capa_mask.capab_info[i];
4678
4679 s1g_capab.capab_info[i] &= ~mask;
4680 s1g_capab.capab_info[i] |= ifmgd->s1g_capa.capab_info[i] & mask;
4681 }
4682
4683 /* then MCS and NSS set */
4684 for (i = 0; i < sizeof(ifmgd->s1g_capa.supp_mcs_nss); i++) {
4685 u8 mask = ifmgd->s1g_capa_mask.supp_mcs_nss[i];
4686
4687 s1g_capab.supp_mcs_nss[i] &= ~mask;
4688 s1g_capab.supp_mcs_nss[i] |=
4689 ifmgd->s1g_capa.supp_mcs_nss[i] & mask;
4690 }
4691
4692 pos = skb_put(skb, 2 + sizeof(s1g_capab));
4693 *pos++ = WLAN_EID_S1G_CAPABILITIES;
4694 *pos++ = sizeof(s1g_capab);
4695
4696 memcpy(pos, &s1g_capab, sizeof(s1g_capab));
6fa001bc 4697}
40b861a0 4698
1d00ce80
TP		 4699void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
4700 struct sk_buff *skb)
4701{
4702 u8 *pos = skb_put(skb, 3);
4703
4704 *pos++ = WLAN_EID_AID_REQUEST;
4705 *pos++ = 1;
4706 *pos++ = 0;
4707}
4708
40b861a0
AN		 4709u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo)
4710{
4711 *buf++ = WLAN_EID_VENDOR_SPECIFIC;
4712 *buf++ = 7; /* len */
4713 *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */
4714 *buf++ = 0x50;
4715 *buf++ = 0xf2;
4716 *buf++ = 2; /* WME */
4717 *buf++ = 0; /* WME info */
4718 *buf++ = 1; /* WME ver */
4719 *buf++ = qosinfo; /* U-APSD no in use */
4720
4721 return buf;
4722}
ba8c3d6f 4723
f2ac7e30
MK		 4724void ieee80211_txq_get_depth(struct ieee80211_txq *txq,
4725 unsigned long *frame_cnt,
4726 unsigned long *byte_cnt)
4727{
4728 struct txq_info *txqi = to_txq_info(txq);
bb42f2d1
THJ		 4729 u32 frag_cnt = 0, frag_bytes = 0;
4730 struct sk_buff *skb;
4731
4732 skb_queue_walk(&txqi->frags, skb) {
4733 frag_cnt++;
4734 frag_bytes += skb->len;
4735 }
f2ac7e30
MK		 4736
4737 if (frame_cnt)
bb42f2d1 4738 *frame_cnt = txqi->tin.backlog_packets + frag_cnt;
f2ac7e30
MK		 4739
4740 if (byte_cnt)
bb42f2d1 4741 *byte_cnt = txqi->tin.backlog_bytes + frag_bytes;
f2ac7e30
MK		 4742}
4743EXPORT_SYMBOL(ieee80211_txq_get_depth);
f438ceb8
EG		 4744
4745const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = {
4746 IEEE80211_WMM_IE_STA_QOSINFO_AC_VO,
4747 IEEE80211_WMM_IE_STA_QOSINFO_AC_VI,
4748 IEEE80211_WMM_IE_STA_QOSINFO_AC_BE,
4749 IEEE80211_WMM_IE_STA_QOSINFO_AC_BK
4750};
05d10957
TP		 4751
4752u16 ieee80211_encode_usf(int listen_interval)
4753{
4754 static const int listen_int_usf[] = { 1, 10, 1000, 10000 };
4755 u16 ui, usf = 0;
4756
4757 /* find greatest USF */
4758 while (usf < IEEE80211_MAX_USF) {
4759 if (listen_interval % listen_int_usf[usf + 1])
4760 break;
4761 usf += 1;
4762 }
4763 ui = listen_interval / listen_int_usf[usf];
4764
4765 /* error if there is a remainder. Should've been checked by user */
4766 WARN_ON_ONCE(ui > IEEE80211_MAX_UI);
4767 listen_interval = FIELD_PREP(LISTEN_INT_USF, usf) |
4768 FIELD_PREP(LISTEN_INT_UI, ui);
4769
4770 return (u16) listen_interval;
4771}
820acc81
IP		 4772
4773u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype)
4774{
4775 const struct ieee80211_sta_he_cap *he_cap;
4776 const struct ieee80211_sta_eht_cap *eht_cap;
4777 struct ieee80211_supported_band *sband;
ea5cba26 4778 bool is_ap;
820acc81
IP		 4779 u8 n;
4780
4781 sband = ieee80211_get_sband(sdata);
4782 if (!sband)
4783 return 0;
4784
4785 he_cap = ieee80211_get_he_iftype_cap(sband, iftype);
4786 eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype);
4787 if (!he_cap || !eht_cap)
4788 return 0;
4789
ea5cba26
JB		 4790 is_ap = iftype == NL80211_IFTYPE_AP ||
4791 iftype == NL80211_IFTYPE_P2P_GO;
4792
820acc81 4793 n = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem,
ea5cba26
JB		 4794 &eht_cap->eht_cap_elem,
4795 is_ap);
820acc81
IP		 4796 return 2 + 1 +
4797 sizeof(he_cap->he_cap_elem) + n +
4798 ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0],
4799 eht_cap->eht_cap_elem.phy_cap_info);
4800 return 0;
4801}
4802
4803u8 *ieee80211_ie_build_eht_cap(u8 *pos,
4804 const struct ieee80211_sta_he_cap *he_cap,
4805 const struct ieee80211_sta_eht_cap *eht_cap,
ea5cba26
JB		 4806 u8 *end,
4807 bool for_ap)
820acc81
IP		 4808{
4809 u8 mcs_nss_len, ppet_len;
4810 u8 ie_len;
4811 u8 *orig_pos = pos;
4812
4813 /* Make sure we have place for the IE */
4814 if (!he_cap || !eht_cap)
4815 return orig_pos;
4816
4817 mcs_nss_len = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem,
ea5cba26
JB		 4818 &eht_cap->eht_cap_elem,
4819 for_ap);
820acc81
IP		 4820 ppet_len = ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0],
4821 eht_cap->eht_cap_elem.phy_cap_info);
4822
4823 ie_len = 2 + 1 + sizeof(eht_cap->eht_cap_elem) + mcs_nss_len + ppet_len;
4824 if ((end - pos) < ie_len)
4825 return orig_pos;
4826
4827 *pos++ = WLAN_EID_EXTENSION;
4828 *pos++ = ie_len - 2;
4829 *pos++ = WLAN_EID_EXT_EHT_CAPABILITY;
4830
4831 /* Fixed data */
4832 memcpy(pos, &eht_cap->eht_cap_elem, sizeof(eht_cap->eht_cap_elem));
4833 pos += sizeof(eht_cap->eht_cap_elem);
4834
4835 memcpy(pos, &eht_cap->eht_mcs_nss_supp, mcs_nss_len);
4836 pos += mcs_nss_len;
4837
4838 if (ppet_len) {
4839 memcpy(pos, &eht_cap->eht_ppe_thres, ppet_len);
4840 pos += ppet_len;
4841 }
4842
4843 return pos;
4844}
e4342549
JB		 4845
4846void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos)
4847{
4848 unsigned int elem_len;
4849
4850 if (!len_pos)
4851 return;
4852
4853 elem_len = skb->data + skb->len - len_pos - 1;
4854
4855 while (elem_len > 255) {
4856 /* this one is 255 */
4857 *len_pos = 255;
4858 /* remaining data gets smaller */
4859 elem_len -= 255;
4860 /* make space for the fragment ID/len in SKB */
4861 skb_put(skb, 2);
4862 /* shift back the remaining data to place fragment ID/len */
4863 memmove(len_pos + 255 + 3, len_pos + 255 + 1, elem_len);
4864 /* place the fragment ID */
4865 len_pos += 255 + 1;
4866 *len_pos = WLAN_EID_FRAGMENT;
4867 /* and point to fragment length to update later */
4868 len_pos++;
4869 }
4870
4871 *len_pos = elem_len;
4872}
Linux 6.x block layer and io_uring tree(s)