Commit | Line | Data |
---|---|---|
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 |
65be6aa3 | 9 | * Copyright (C) 2018-2021 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 | 37 | const void *const mac80211_wiphy_privid = &mac80211_wiphy_privid; |
c2d1560a | 38 | |
9a95371a LR |
39 | struct 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 | } | |
46 | EXPORT_SYMBOL(wiphy_to_ieee80211_hw); | |
c2d1560a | 47 | |
09a740ce TP |
48 | u8 *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 | } | |
98 | EXPORT_SYMBOL(ieee80211_get_bssid); | |
99 | ||
5cf121c3 | 100 | void 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 | 111 | int 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; |
25d834e1 JB |
194 | if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) |
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 | } | |
204 | EXPORT_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; |
25d834e1 JB |
228 | if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) |
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 | } | |
247 | EXPORT_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; |
25d834e1 JB |
271 | if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) |
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 | } | |
289 | EXPORT_SYMBOL(ieee80211_ctstoself_duration); | |
290 | ||
21a5d4c3 MP |
291 | static 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 MP |
303 | |
304 | if (sdata->vif.type == NL80211_IFTYPE_AP) | |
305 | ps = &sdata->bss->ps; | |
306 | ||
307 | sdata->vif.txqs_stopped[ac] = false; | |
308 | ||
309 | list_for_each_entry_rcu(sta, &local->sta_list, list) { | |
310 | if (sdata != sta->sdata) | |
311 | continue; | |
312 | ||
313 | for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) { | |
314 | struct ieee80211_txq *txq = sta->sta.txq[i]; | |
315 | ||
a5ae3264 ES |
316 | if (!txq) |
317 | continue; | |
318 | ||
21a5d4c3 MP |
319 | txqi = to_txq_info(txq); |
320 | ||
321 | if (ac != txq->ac) | |
322 | continue; | |
323 | ||
324 | if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, | |
325 | &txqi->flags)) | |
326 | continue; | |
327 | ||
d8dec42b | 328 | spin_unlock(&fq->lock); |
21a5d4c3 | 329 | drv_wake_tx_queue(local, txqi); |
d8dec42b | 330 | spin_lock(&fq->lock); |
21a5d4c3 MP |
331 | } |
332 | } | |
333 | ||
334 | if (!vif->txq) | |
335 | goto out; | |
336 | ||
337 | txqi = to_txq_info(vif->txq); | |
338 | ||
339 | if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txqi->flags) || | |
340 | (ps && atomic_read(&ps->num_sta_ps)) || ac != vif->txq->ac) | |
341 | goto out; | |
342 | ||
d8dec42b | 343 | spin_unlock(&fq->lock); |
21a5d4c3 MP |
344 | |
345 | drv_wake_tx_queue(local, txqi); | |
d8dec42b | 346 | local_bh_enable(); |
21a5d4c3 MP |
347 | return; |
348 | out: | |
d8dec42b JB |
349 | spin_unlock(&fq->lock); |
350 | local_bh_enable(); | |
21a5d4c3 MP |
351 | } |
352 | ||
f6c7f03f EG |
353 | static void |
354 | __releases(&local->queue_stop_reason_lock) | |
355 | __acquires(&local->queue_stop_reason_lock) | |
356 | _ieee80211_wake_txqs(struct ieee80211_local *local, unsigned long *flags) | |
21a5d4c3 | 357 | { |
21a5d4c3 MP |
358 | struct ieee80211_sub_if_data *sdata; |
359 | int n_acs = IEEE80211_NUM_ACS; | |
21a5d4c3 MP |
360 | int i; |
361 | ||
362 | rcu_read_lock(); | |
21a5d4c3 MP |
363 | |
364 | if (local->hw.queues < IEEE80211_NUM_ACS) | |
365 | n_acs = 1; | |
366 | ||
367 | for (i = 0; i < local->hw.queues; i++) { | |
368 | if (local->queue_stop_reasons[i]) | |
369 | continue; | |
370 | ||
f6c7f03f | 371 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, *flags); |
21a5d4c3 MP |
372 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
373 | int ac; | |
374 | ||
375 | for (ac = 0; ac < n_acs; ac++) { | |
376 | int ac_queue = sdata->vif.hw_queue[ac]; | |
377 | ||
378 | if (ac_queue == i || | |
379 | sdata->vif.cab_queue == i) | |
380 | __ieee80211_wake_txqs(sdata, ac); | |
381 | } | |
382 | } | |
f6c7f03f | 383 | spin_lock_irqsave(&local->queue_stop_reason_lock, *flags); |
21a5d4c3 MP |
384 | } |
385 | ||
21a5d4c3 MP |
386 | rcu_read_unlock(); |
387 | } | |
388 | ||
da1cad73 | 389 | void ieee80211_wake_txqs(struct tasklet_struct *t) |
f6c7f03f | 390 | { |
da1cad73 AP |
391 | struct ieee80211_local *local = from_tasklet(local, t, |
392 | wake_txqs_tasklet); | |
f6c7f03f EG |
393 | unsigned long flags; |
394 | ||
395 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
396 | _ieee80211_wake_txqs(local, &flags); | |
397 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
398 | } | |
399 | ||
3a25a8c8 JB |
400 | void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue) |
401 | { | |
402 | struct ieee80211_sub_if_data *sdata; | |
a6f38ac3 JB |
403 | int n_acs = IEEE80211_NUM_ACS; |
404 | ||
80a83cfc MK |
405 | if (local->ops->wake_tx_queue) |
406 | return; | |
407 | ||
a6f38ac3 JB |
408 | if (local->hw.queues < IEEE80211_NUM_ACS) |
409 | n_acs = 1; | |
3a25a8c8 JB |
410 | |
411 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { | |
412 | int ac; | |
413 | ||
f142c6b9 JB |
414 | if (!sdata->dev) |
415 | continue; | |
416 | ||
3a25a8c8 JB |
417 | if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE && |
418 | local->queue_stop_reasons[sdata->vif.cab_queue] != 0) | |
419 | continue; | |
420 | ||
a6f38ac3 | 421 | for (ac = 0; ac < n_acs; ac++) { |
3a25a8c8 JB |
422 | int ac_queue = sdata->vif.hw_queue[ac]; |
423 | ||
424 | if (ac_queue == queue || | |
425 | (sdata->vif.cab_queue == queue && | |
426 | local->queue_stop_reasons[ac_queue] == 0 && | |
427 | skb_queue_empty(&local->pending[ac_queue]))) | |
428 | netif_wake_subqueue(sdata->dev, ac); | |
429 | } | |
430 | } | |
431 | } | |
432 | ||
ce7c9111 | 433 | static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, |
cca07b00 | 434 | enum queue_stop_reason reason, |
f6c7f03f EG |
435 | bool refcounted, |
436 | unsigned long *flags) | |
c2d1560a JB |
437 | { |
438 | struct ieee80211_local *local = hw_to_local(hw); | |
439 | ||
b5878a2d JB |
440 | trace_wake_queue(local, queue, reason); |
441 | ||
e4e72fb4 JB |
442 | if (WARN_ON(queue >= hw->queues)) |
443 | return; | |
ce7c9111 | 444 | |
ada15125 JB |
445 | if (!test_bit(reason, &local->queue_stop_reasons[queue])) |
446 | return; | |
447 | ||
856142cd | 448 | if (!refcounted) { |
cca07b00 | 449 | local->q_stop_reasons[queue][reason] = 0; |
856142cd | 450 | } else { |
cca07b00 | 451 | local->q_stop_reasons[queue][reason]--; |
856142cd JB |
452 | if (WARN_ON(local->q_stop_reasons[queue][reason] < 0)) |
453 | local->q_stop_reasons[queue][reason] = 0; | |
454 | } | |
cca07b00 LC |
455 | |
456 | if (local->q_stop_reasons[queue][reason] == 0) | |
457 | __clear_bit(reason, &local->queue_stop_reasons[queue]); | |
96f5e66e JB |
458 | |
459 | if (local->queue_stop_reasons[queue] != 0) | |
460 | /* someone still has this queue stopped */ | |
461 | return; | |
462 | ||
7236fe29 JB |
463 | if (skb_queue_empty(&local->pending[queue])) { |
464 | rcu_read_lock(); | |
3a25a8c8 | 465 | ieee80211_propagate_queue_wake(local, queue); |
7236fe29 JB |
466 | rcu_read_unlock(); |
467 | } else | |
3b8d81e0 | 468 | tasklet_schedule(&local->tx_pending_tasklet); |
21a5d4c3 | 469 | |
f6c7f03f EG |
470 | /* |
471 | * Calling _ieee80211_wake_txqs here can be a problem because it may | |
472 | * release queue_stop_reason_lock which has been taken by | |
473 | * __ieee80211_wake_queue's caller. It is certainly not very nice to | |
474 | * release someone's lock, but it is fine because all the callers of | |
475 | * __ieee80211_wake_queue call it right before releasing the lock. | |
476 | */ | |
477 | if (local->ops->wake_tx_queue) { | |
478 | if (reason == IEEE80211_QUEUE_STOP_REASON_DRIVER) | |
479 | tasklet_schedule(&local->wake_txqs_tasklet); | |
480 | else | |
481 | _ieee80211_wake_txqs(local, flags); | |
482 | } | |
c2d1560a | 483 | } |
ce7c9111 | 484 | |
96f5e66e | 485 | void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
486 | enum queue_stop_reason reason, |
487 | bool refcounted) | |
ce7c9111 KV |
488 | { |
489 | struct ieee80211_local *local = hw_to_local(hw); | |
490 | unsigned long flags; | |
491 | ||
492 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
f6c7f03f | 493 | __ieee80211_wake_queue(hw, queue, reason, refcounted, &flags); |
ce7c9111 KV |
494 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
495 | } | |
496 | ||
497 | void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue) | |
498 | { | |
499 | ieee80211_wake_queue_by_reason(hw, queue, | |
cca07b00 LC |
500 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
501 | false); | |
ce7c9111 | 502 | } |
c2d1560a JB |
503 | EXPORT_SYMBOL(ieee80211_wake_queue); |
504 | ||
ce7c9111 | 505 | static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
506 | enum queue_stop_reason reason, |
507 | bool refcounted) | |
c2d1560a JB |
508 | { |
509 | struct ieee80211_local *local = hw_to_local(hw); | |
cf0277e7 | 510 | struct ieee80211_sub_if_data *sdata; |
a6f38ac3 | 511 | int n_acs = IEEE80211_NUM_ACS; |
c2d1560a | 512 | |
b5878a2d JB |
513 | trace_stop_queue(local, queue, reason); |
514 | ||
e4e72fb4 JB |
515 | if (WARN_ON(queue >= hw->queues)) |
516 | return; | |
96f5e66e | 517 | |
cca07b00 LC |
518 | if (!refcounted) |
519 | local->q_stop_reasons[queue][reason] = 1; | |
520 | else | |
521 | local->q_stop_reasons[queue][reason]++; | |
ada15125 | 522 | |
cca07b00 LC |
523 | if (__test_and_set_bit(reason, &local->queue_stop_reasons[queue])) |
524 | return; | |
cf0277e7 | 525 | |
a6f38ac3 JB |
526 | if (local->hw.queues < IEEE80211_NUM_ACS) |
527 | n_acs = 1; | |
528 | ||
cf0277e7 | 529 | rcu_read_lock(); |
3a25a8c8 JB |
530 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
531 | int ac; | |
532 | ||
f142c6b9 JB |
533 | if (!sdata->dev) |
534 | continue; | |
535 | ||
a6f38ac3 | 536 | for (ac = 0; ac < n_acs; ac++) { |
3a25a8c8 | 537 | if (sdata->vif.hw_queue[ac] == queue || |
21a5d4c3 MP |
538 | sdata->vif.cab_queue == queue) { |
539 | if (!local->ops->wake_tx_queue) { | |
540 | netif_stop_subqueue(sdata->dev, ac); | |
541 | continue; | |
542 | } | |
543 | spin_lock(&local->fq.lock); | |
544 | sdata->vif.txqs_stopped[ac] = true; | |
545 | spin_unlock(&local->fq.lock); | |
546 | } | |
3a25a8c8 JB |
547 | } |
548 | } | |
cf0277e7 | 549 | rcu_read_unlock(); |
c2d1560a | 550 | } |
ce7c9111 | 551 | |
96f5e66e | 552 | void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
553 | enum queue_stop_reason reason, |
554 | bool refcounted) | |
ce7c9111 KV |
555 | { |
556 | struct ieee80211_local *local = hw_to_local(hw); | |
557 | unsigned long flags; | |
558 | ||
559 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
cca07b00 | 560 | __ieee80211_stop_queue(hw, queue, reason, refcounted); |
ce7c9111 KV |
561 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
562 | } | |
563 | ||
564 | void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue) | |
565 | { | |
566 | ieee80211_stop_queue_by_reason(hw, queue, | |
cca07b00 LC |
567 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
568 | false); | |
ce7c9111 | 569 | } |
c2d1560a JB |
570 | EXPORT_SYMBOL(ieee80211_stop_queue); |
571 | ||
8f77f384 JB |
572 | void ieee80211_add_pending_skb(struct ieee80211_local *local, |
573 | struct sk_buff *skb) | |
574 | { | |
575 | struct ieee80211_hw *hw = &local->hw; | |
576 | unsigned long flags; | |
a7bc376c | 577 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
3a25a8c8 | 578 | int queue = info->hw_queue; |
a7bc376c JB |
579 | |
580 | if (WARN_ON(!info->control.vif)) { | |
d4fa14cd | 581 | ieee80211_free_txskb(&local->hw, skb); |
a7bc376c JB |
582 | return; |
583 | } | |
8f77f384 JB |
584 | |
585 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
cca07b00 LC |
586 | __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
587 | false); | |
3b8d81e0 | 588 | __skb_queue_tail(&local->pending[queue], skb); |
cca07b00 | 589 | __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
f6c7f03f | 590 | false, &flags); |
8f77f384 JB |
591 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
592 | } | |
593 | ||
e3685e03 JB |
594 | void ieee80211_add_pending_skbs(struct ieee80211_local *local, |
595 | struct sk_buff_head *skbs) | |
8f77f384 JB |
596 | { |
597 | struct ieee80211_hw *hw = &local->hw; | |
598 | struct sk_buff *skb; | |
599 | unsigned long flags; | |
b0b97a8a | 600 | int queue, i; |
8f77f384 JB |
601 | |
602 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
8f77f384 | 603 | while ((skb = skb_dequeue(skbs))) { |
a7bc376c JB |
604 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
605 | ||
606 | if (WARN_ON(!info->control.vif)) { | |
d4fa14cd | 607 | ieee80211_free_txskb(&local->hw, skb); |
a7bc376c JB |
608 | continue; |
609 | } | |
610 | ||
3a25a8c8 | 611 | queue = info->hw_queue; |
4644ae89 JB |
612 | |
613 | __ieee80211_stop_queue(hw, queue, | |
cca07b00 LC |
614 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
615 | false); | |
4644ae89 | 616 | |
3b8d81e0 | 617 | __skb_queue_tail(&local->pending[queue], skb); |
8f77f384 JB |
618 | } |
619 | ||
3b8d81e0 | 620 | for (i = 0; i < hw->queues; i++) |
8f77f384 | 621 | __ieee80211_wake_queue(hw, i, |
cca07b00 | 622 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
f6c7f03f | 623 | false, &flags); |
8f77f384 | 624 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
8f77f384 JB |
625 | } |
626 | ||
ce7c9111 | 627 | void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, |
445ea4e8 | 628 | unsigned long queues, |
cca07b00 LC |
629 | enum queue_stop_reason reason, |
630 | bool refcounted) | |
c2d1560a | 631 | { |
ce7c9111 KV |
632 | struct ieee80211_local *local = hw_to_local(hw); |
633 | unsigned long flags; | |
c2d1560a JB |
634 | int i; |
635 | ||
ce7c9111 KV |
636 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
637 | ||
445ea4e8 | 638 | for_each_set_bit(i, &queues, hw->queues) |
cca07b00 | 639 | __ieee80211_stop_queue(hw, i, reason, refcounted); |
ce7c9111 KV |
640 | |
641 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
642 | } | |
643 | ||
644 | void ieee80211_stop_queues(struct ieee80211_hw *hw) | |
645 | { | |
445ea4e8 | 646 | ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
647 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
648 | false); | |
c2d1560a JB |
649 | } |
650 | EXPORT_SYMBOL(ieee80211_stop_queues); | |
651 | ||
92ab8535 TW |
652 | int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue) |
653 | { | |
654 | struct ieee80211_local *local = hw_to_local(hw); | |
3b8d81e0 JB |
655 | unsigned long flags; |
656 | int ret; | |
96f5e66e | 657 | |
e4e72fb4 JB |
658 | if (WARN_ON(queue >= hw->queues)) |
659 | return true; | |
96f5e66e | 660 | |
3b8d81e0 | 661 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
2419ea14 TP |
662 | ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER, |
663 | &local->queue_stop_reasons[queue]); | |
3b8d81e0 JB |
664 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
665 | return ret; | |
92ab8535 TW |
666 | } |
667 | EXPORT_SYMBOL(ieee80211_queue_stopped); | |
668 | ||
ce7c9111 | 669 | void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, |
445ea4e8 | 670 | unsigned long queues, |
cca07b00 LC |
671 | enum queue_stop_reason reason, |
672 | bool refcounted) | |
c2d1560a | 673 | { |
ce7c9111 KV |
674 | struct ieee80211_local *local = hw_to_local(hw); |
675 | unsigned long flags; | |
c2d1560a JB |
676 | int i; |
677 | ||
ce7c9111 KV |
678 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
679 | ||
445ea4e8 | 680 | for_each_set_bit(i, &queues, hw->queues) |
f6c7f03f | 681 | __ieee80211_wake_queue(hw, i, reason, refcounted, &flags); |
ce7c9111 KV |
682 | |
683 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
684 | } | |
685 | ||
686 | void ieee80211_wake_queues(struct ieee80211_hw *hw) | |
687 | { | |
445ea4e8 | 688 | ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
689 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
690 | false); | |
c2d1560a JB |
691 | } |
692 | EXPORT_SYMBOL(ieee80211_wake_queues); | |
dabeb344 | 693 | |
26da23b6 LC |
694 | static unsigned int |
695 | ieee80211_get_vif_queues(struct ieee80211_local *local, | |
696 | struct ieee80211_sub_if_data *sdata) | |
39ecc01d | 697 | { |
26da23b6 | 698 | unsigned int queues; |
39ecc01d | 699 | |
30686bf7 | 700 | if (sdata && ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) { |
39ecc01d JB |
701 | int ac; |
702 | ||
703 | queues = 0; | |
704 | ||
705 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
706 | queues |= BIT(sdata->vif.hw_queue[ac]); | |
707 | if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE) | |
708 | queues |= BIT(sdata->vif.cab_queue); | |
709 | } else { | |
710 | /* all queues */ | |
711 | queues = BIT(local->hw.queues) - 1; | |
712 | } | |
713 | ||
26da23b6 LC |
714 | return queues; |
715 | } | |
716 | ||
4f9610d5 LK |
717 | void __ieee80211_flush_queues(struct ieee80211_local *local, |
718 | struct ieee80211_sub_if_data *sdata, | |
3b24f4c6 | 719 | unsigned int queues, bool drop) |
26da23b6 | 720 | { |
26da23b6 LC |
721 | if (!local->ops->flush) |
722 | return; | |
723 | ||
4f9610d5 LK |
724 | /* |
725 | * If no queue was set, or if the HW doesn't support | |
726 | * IEEE80211_HW_QUEUE_CONTROL - flush all queues | |
727 | */ | |
30686bf7 | 728 | if (!queues || !ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) |
4f9610d5 | 729 | queues = ieee80211_get_vif_queues(local, sdata); |
26da23b6 | 730 | |
59f48fe2 | 731 | ieee80211_stop_queues_by_reason(&local->hw, queues, |
cca07b00 LC |
732 | IEEE80211_QUEUE_STOP_REASON_FLUSH, |
733 | false); | |
445ea4e8 | 734 | |
3b24f4c6 | 735 | drv_flush(local, sdata, queues, drop); |
445ea4e8 | 736 | |
59f48fe2 | 737 | ieee80211_wake_queues_by_reason(&local->hw, queues, |
cca07b00 LC |
738 | IEEE80211_QUEUE_STOP_REASON_FLUSH, |
739 | false); | |
39ecc01d JB |
740 | } |
741 | ||
4f9610d5 | 742 | void ieee80211_flush_queues(struct ieee80211_local *local, |
3b24f4c6 | 743 | struct ieee80211_sub_if_data *sdata, bool drop) |
4f9610d5 | 744 | { |
3b24f4c6 | 745 | __ieee80211_flush_queues(local, sdata, 0, drop); |
4f9610d5 LK |
746 | } |
747 | ||
26da23b6 LC |
748 | void ieee80211_stop_vif_queues(struct ieee80211_local *local, |
749 | struct ieee80211_sub_if_data *sdata, | |
750 | enum queue_stop_reason reason) | |
751 | { | |
752 | ieee80211_stop_queues_by_reason(&local->hw, | |
753 | ieee80211_get_vif_queues(local, sdata), | |
754 | reason, true); | |
755 | } | |
756 | ||
757 | void ieee80211_wake_vif_queues(struct ieee80211_local *local, | |
758 | struct ieee80211_sub_if_data *sdata, | |
759 | enum queue_stop_reason reason) | |
760 | { | |
761 | ieee80211_wake_queues_by_reason(&local->hw, | |
762 | ieee80211_get_vif_queues(local, sdata), | |
763 | reason, true); | |
764 | } | |
765 | ||
3384d757 AN |
766 | static void __iterate_interfaces(struct ieee80211_local *local, |
767 | u32 iter_flags, | |
768 | void (*iterator)(void *data, u8 *mac, | |
769 | struct ieee80211_vif *vif), | |
770 | void *data) | |
dabeb344 | 771 | { |
dabeb344 | 772 | struct ieee80211_sub_if_data *sdata; |
3384d757 | 773 | bool active_only = iter_flags & IEEE80211_IFACE_ITER_ACTIVE; |
dabeb344 | 774 | |
c7c71066 | 775 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
2f561feb | 776 | switch (sdata->vif.type) { |
05c914fe | 777 | case NL80211_IFTYPE_MONITOR: |
d8212184 | 778 | if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE)) |
31eba5bc FF |
779 | continue; |
780 | break; | |
05c914fe | 781 | case NL80211_IFTYPE_AP_VLAN: |
2f561feb | 782 | continue; |
2ca27bcf | 783 | default: |
2f561feb ID |
784 | break; |
785 | } | |
8b2c9824 | 786 | if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) && |
3384d757 | 787 | active_only && !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) |
8b2c9824 | 788 | continue; |
265a0708 BG |
789 | if ((iter_flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) && |
790 | !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) | |
791 | continue; | |
3384d757 | 792 | if (ieee80211_sdata_running(sdata) || !active_only) |
47846c9b | 793 | iterator(data, sdata->vif.addr, |
2f561feb ID |
794 | &sdata->vif); |
795 | } | |
796 | ||
c7c71066 JB |
797 | sdata = rcu_dereference_check(local->monitor_sdata, |
798 | lockdep_is_held(&local->iflist_mtx) || | |
6dd23603 | 799 | lockdep_is_held(&local->hw.wiphy->mtx)); |
8b2c9824 | 800 | if (sdata && |
3384d757 | 801 | (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || !active_only || |
8b2c9824 | 802 | sdata->flags & IEEE80211_SDATA_IN_DRIVER)) |
685fb72b | 803 | iterator(data, sdata->vif.addr, &sdata->vif); |
c7c71066 | 804 | } |
685fb72b | 805 | |
3384d757 | 806 | void ieee80211_iterate_interfaces( |
c7c71066 JB |
807 | struct ieee80211_hw *hw, u32 iter_flags, |
808 | void (*iterator)(void *data, u8 *mac, | |
809 | struct ieee80211_vif *vif), | |
810 | void *data) | |
811 | { | |
812 | struct ieee80211_local *local = hw_to_local(hw); | |
813 | ||
814 | mutex_lock(&local->iflist_mtx); | |
3384d757 | 815 | __iterate_interfaces(local, iter_flags, iterator, data); |
c771c9d8 | 816 | mutex_unlock(&local->iflist_mtx); |
2f561feb | 817 | } |
3384d757 | 818 | EXPORT_SYMBOL_GPL(ieee80211_iterate_interfaces); |
2f561feb ID |
819 | |
820 | void ieee80211_iterate_active_interfaces_atomic( | |
8b2c9824 | 821 | struct ieee80211_hw *hw, u32 iter_flags, |
2f561feb ID |
822 | void (*iterator)(void *data, u8 *mac, |
823 | struct ieee80211_vif *vif), | |
824 | void *data) | |
825 | { | |
826 | struct ieee80211_local *local = hw_to_local(hw); | |
2f561feb | 827 | |
e38bad47 | 828 | rcu_read_lock(); |
3384d757 AN |
829 | __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, |
830 | iterator, data); | |
c7c71066 JB |
831 | rcu_read_unlock(); |
832 | } | |
833 | EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic); | |
dabeb344 | 834 | |
a05829a7 | 835 | void ieee80211_iterate_active_interfaces_mtx( |
c7c71066 JB |
836 | struct ieee80211_hw *hw, u32 iter_flags, |
837 | void (*iterator)(void *data, u8 *mac, | |
838 | struct ieee80211_vif *vif), | |
839 | void *data) | |
840 | { | |
841 | struct ieee80211_local *local = hw_to_local(hw); | |
e38bad47 | 842 | |
a05829a7 | 843 | lockdep_assert_wiphy(hw->wiphy); |
685fb72b | 844 | |
3384d757 AN |
845 | __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, |
846 | iterator, data); | |
dabeb344 | 847 | } |
a05829a7 | 848 | EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_mtx); |
37ffc8da | 849 | |
0fc1e049 AN |
850 | static void __iterate_stations(struct ieee80211_local *local, |
851 | void (*iterator)(void *data, | |
852 | struct ieee80211_sta *sta), | |
853 | void *data) | |
854 | { | |
855 | struct sta_info *sta; | |
856 | ||
857 | list_for_each_entry_rcu(sta, &local->sta_list, list) { | |
858 | if (!sta->uploaded) | |
859 | continue; | |
860 | ||
861 | iterator(data, &sta->sta); | |
862 | } | |
863 | } | |
864 | ||
acb99b9b MB |
865 | void ieee80211_iterate_stations(struct ieee80211_hw *hw, |
866 | void (*iterator)(void *data, | |
867 | struct ieee80211_sta *sta), | |
868 | void *data) | |
869 | { | |
870 | struct ieee80211_local *local = hw_to_local(hw); | |
871 | ||
872 | mutex_lock(&local->sta_mtx); | |
873 | __iterate_stations(local, iterator, data); | |
874 | mutex_unlock(&local->sta_mtx); | |
875 | } | |
876 | EXPORT_SYMBOL_GPL(ieee80211_iterate_stations); | |
877 | ||
0fc1e049 AN |
878 | void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, |
879 | void (*iterator)(void *data, | |
880 | struct ieee80211_sta *sta), | |
881 | void *data) | |
882 | { | |
883 | struct ieee80211_local *local = hw_to_local(hw); | |
884 | ||
885 | rcu_read_lock(); | |
886 | __iterate_stations(local, iterator, data); | |
887 | rcu_read_unlock(); | |
888 | } | |
889 | EXPORT_SYMBOL_GPL(ieee80211_iterate_stations_atomic); | |
890 | ||
ad7e718c JB |
891 | struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev) |
892 | { | |
893 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); | |
894 | ||
895 | if (!ieee80211_sdata_running(sdata) || | |
896 | !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) | |
897 | return NULL; | |
898 | return &sdata->vif; | |
899 | } | |
900 | EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif); | |
901 | ||
dc5a1ad7 EG |
902 | struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif) |
903 | { | |
6513e98e JB |
904 | if (!vif) |
905 | return NULL; | |
906 | ||
f30386a8 | 907 | return &vif_to_sdata(vif)->wdev; |
dc5a1ad7 EG |
908 | } |
909 | EXPORT_SYMBOL_GPL(ieee80211_vif_to_wdev); | |
910 | ||
42935eca LR |
911 | /* |
912 | * Nothing should have been stuffed into the workqueue during | |
4afaff17 EG |
913 | * the suspend->resume cycle. Since we can't check each caller |
914 | * of this function if we are already quiescing / suspended, | |
915 | * check here and don't WARN since this can actually happen when | |
916 | * the rx path (for example) is racing against __ieee80211_suspend | |
917 | * and suspending / quiescing was set after the rx path checked | |
918 | * them. | |
42935eca LR |
919 | */ |
920 | static bool ieee80211_can_queue_work(struct ieee80211_local *local) | |
921 | { | |
4afaff17 EG |
922 | if (local->quiescing || (local->suspended && !local->resuming)) { |
923 | pr_warn("queueing ieee80211 work while going to suspend\n"); | |
ceb99fe0 | 924 | return false; |
4afaff17 | 925 | } |
42935eca LR |
926 | |
927 | return true; | |
928 | } | |
929 | ||
930 | void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work) | |
931 | { | |
932 | struct ieee80211_local *local = hw_to_local(hw); | |
933 | ||
934 | if (!ieee80211_can_queue_work(local)) | |
935 | return; | |
936 | ||
937 | queue_work(local->workqueue, work); | |
938 | } | |
939 | EXPORT_SYMBOL(ieee80211_queue_work); | |
940 | ||
941 | void ieee80211_queue_delayed_work(struct ieee80211_hw *hw, | |
942 | struct delayed_work *dwork, | |
943 | unsigned long delay) | |
944 | { | |
945 | struct ieee80211_local *local = hw_to_local(hw); | |
946 | ||
947 | if (!ieee80211_can_queue_work(local)) | |
948 | return; | |
949 | ||
950 | queue_delayed_work(local->workqueue, dwork, delay); | |
951 | } | |
952 | EXPORT_SYMBOL(ieee80211_queue_delayed_work); | |
953 | ||
e4d005b8 JB |
954 | static void ieee80211_parse_extension_element(u32 *crc, |
955 | const struct element *elem, | |
956 | struct ieee802_11_elems *elems) | |
957 | { | |
958 | const void *data = elem->data + 1; | |
768c0b19 JB |
959 | u8 len; |
960 | ||
961 | if (!elem->datalen) | |
962 | return; | |
963 | ||
964 | len = elem->datalen - 1; | |
e4d005b8 JB |
965 | |
966 | switch (elem->data[0]) { | |
967 | case WLAN_EID_EXT_HE_MU_EDCA: | |
652e8363 | 968 | if (len >= sizeof(*elems->mu_edca_param_set)) { |
e4d005b8 JB |
969 | elems->mu_edca_param_set = data; |
970 | if (crc) | |
971 | *crc = crc32_be(*crc, (void *)elem, | |
972 | elem->datalen + 2); | |
973 | } | |
974 | break; | |
975 | case WLAN_EID_EXT_HE_CAPABILITY: | |
976 | elems->he_cap = data; | |
977 | elems->he_cap_len = len; | |
978 | break; | |
979 | case WLAN_EID_EXT_HE_OPERATION: | |
980 | if (len >= sizeof(*elems->he_operation) && | |
0f7e90fa | 981 | len >= ieee80211_he_oper_size(data) - 1) { |
660d81da JB |
982 | if (crc) |
983 | *crc = crc32_be(*crc, (void *)elem, | |
984 | elem->datalen + 2); | |
e4d005b8 | 985 | elems->he_operation = data; |
660d81da | 986 | } |
e4d005b8 JB |
987 | break; |
988 | case WLAN_EID_EXT_UORA: | |
652e8363 | 989 | if (len >= 1) |
e4d005b8 JB |
990 | elems->uora_element = data; |
991 | break; | |
992 | case WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME: | |
993 | if (len == 3) | |
994 | elems->max_channel_switch_time = data; | |
995 | break; | |
996 | case WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION: | |
652e8363 | 997 | if (len >= sizeof(*elems->mbssid_config_ie)) |
e4d005b8 JB |
998 | elems->mbssid_config_ie = data; |
999 | break; | |
1000 | case WLAN_EID_EXT_HE_SPR: | |
1001 | if (len >= sizeof(*elems->he_spr) && | |
1002 | len >= ieee80211_he_spr_size(data)) | |
1003 | elems->he_spr = data; | |
1004 | break; | |
a6cf28e0 | 1005 | case WLAN_EID_EXT_HE_6GHZ_CAPA: |
652e8363 | 1006 | if (len >= sizeof(*elems->he_6ghz_capa)) |
a6cf28e0 RM |
1007 | elems->he_6ghz_capa = data; |
1008 | break; | |
e4d005b8 JB |
1009 | } |
1010 | } | |
1011 | ||
78ac51f8 SS |
1012 | static u32 |
1013 | _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, | |
1014 | struct ieee802_11_elems *elems, | |
671042a4 SS |
1015 | u64 filter, u32 crc, |
1016 | const struct element *check_inherit) | |
dd76986b | 1017 | { |
671042a4 | 1018 | const struct element *elem; |
dd76986b | 1019 | bool calc_crc = filter != 0; |
fcff4f10 | 1020 | DECLARE_BITMAP(seen_elems, 256); |
b2e506bf | 1021 | const u8 *ie; |
dd76986b | 1022 | |
fcff4f10 | 1023 | bitmap_zero(seen_elems, 256); |
dd76986b | 1024 | |
c17e28d1 | 1025 | for_each_element(elem, start, len) { |
fcff4f10 | 1026 | bool elem_parse_failed; |
c17e28d1 JB |
1027 | u8 id = elem->id; |
1028 | u8 elen = elem->datalen; | |
1029 | const u8 *pos = elem->data; | |
fcff4f10 | 1030 | |
671042a4 SS |
1031 | if (check_inherit && |
1032 | !cfg80211_is_element_inherited(elem, | |
1033 | check_inherit)) | |
1034 | continue; | |
1035 | ||
9690fb16 JB |
1036 | switch (id) { |
1037 | case WLAN_EID_SSID: | |
1038 | case WLAN_EID_SUPP_RATES: | |
1039 | case WLAN_EID_FH_PARAMS: | |
1040 | case WLAN_EID_DS_PARAMS: | |
1041 | case WLAN_EID_CF_PARAMS: | |
1042 | case WLAN_EID_TIM: | |
1043 | case WLAN_EID_IBSS_PARAMS: | |
1044 | case WLAN_EID_CHALLENGE: | |
1045 | case WLAN_EID_RSN: | |
1046 | case WLAN_EID_ERP_INFO: | |
1047 | case WLAN_EID_EXT_SUPP_RATES: | |
1048 | case WLAN_EID_HT_CAPABILITY: | |
1049 | case WLAN_EID_HT_OPERATION: | |
1050 | case WLAN_EID_VHT_CAPABILITY: | |
1051 | case WLAN_EID_VHT_OPERATION: | |
1052 | case WLAN_EID_MESH_ID: | |
1053 | case WLAN_EID_MESH_CONFIG: | |
1054 | case WLAN_EID_PEER_MGMT: | |
1055 | case WLAN_EID_PREQ: | |
1056 | case WLAN_EID_PREP: | |
1057 | case WLAN_EID_PERR: | |
1058 | case WLAN_EID_RANN: | |
1059 | case WLAN_EID_CHANNEL_SWITCH: | |
1060 | case WLAN_EID_EXT_CHANSWITCH_ANN: | |
1061 | case WLAN_EID_COUNTRY: | |
1062 | case WLAN_EID_PWR_CONSTRAINT: | |
1063 | case WLAN_EID_TIMEOUT_INTERVAL: | |
85220d71 | 1064 | case WLAN_EID_SECONDARY_CHANNEL_OFFSET: |
b2e506bf | 1065 | case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: |
8f2535b9 | 1066 | case WLAN_EID_CHAN_SWITCH_PARAM: |
9041c1fa | 1067 | case WLAN_EID_EXT_CAPABILITY: |
53837584 AN |
1068 | case WLAN_EID_CHAN_SWITCH_TIMING: |
1069 | case WLAN_EID_LINK_ID: | |
e38a017b | 1070 | case WLAN_EID_BSS_MAX_IDLE_PERIOD: |
c0058df7 | 1071 | case WLAN_EID_RSNX: |
cd418ba6 TP |
1072 | case WLAN_EID_S1G_BCN_COMPAT: |
1073 | case WLAN_EID_S1G_CAPABILITIES: | |
1074 | case WLAN_EID_S1G_OPERATION: | |
1d00ce80 | 1075 | case WLAN_EID_AID_RESPONSE: |
cd418ba6 | 1076 | case WLAN_EID_S1G_SHORT_BCN_INTERVAL: |
b2e506bf JB |
1077 | /* |
1078 | * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible | |
1079 | * that if the content gets bigger it might be needed more than once | |
1080 | */ | |
9690fb16 JB |
1081 | if (test_bit(id, seen_elems)) { |
1082 | elems->parse_error = true; | |
9690fb16 JB |
1083 | continue; |
1084 | } | |
1085 | break; | |
fcff4f10 | 1086 | } |
dd76986b JB |
1087 | |
1088 | if (calc_crc && id < 64 && (filter & (1ULL << id))) | |
1089 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1090 | ||
fcff4f10 PS |
1091 | elem_parse_failed = false; |
1092 | ||
dd76986b | 1093 | switch (id) { |
53837584 | 1094 | case WLAN_EID_LINK_ID: |
652e8363 | 1095 | if (elen + 2 < sizeof(struct ieee80211_tdls_lnkie)) { |
53837584 AN |
1096 | elem_parse_failed = true; |
1097 | break; | |
1098 | } | |
1099 | elems->lnk_id = (void *)(pos - 2); | |
1100 | break; | |
1101 | case WLAN_EID_CHAN_SWITCH_TIMING: | |
652e8363 | 1102 | if (elen < sizeof(struct ieee80211_ch_switch_timing)) { |
53837584 AN |
1103 | elem_parse_failed = true; |
1104 | break; | |
1105 | } | |
1106 | elems->ch_sw_timing = (void *)pos; | |
1107 | break; | |
9041c1fa AN |
1108 | case WLAN_EID_EXT_CAPABILITY: |
1109 | elems->ext_capab = pos; | |
1110 | elems->ext_capab_len = elen; | |
1111 | break; | |
dd76986b JB |
1112 | case WLAN_EID_SSID: |
1113 | elems->ssid = pos; | |
1114 | elems->ssid_len = elen; | |
1115 | break; | |
1116 | case WLAN_EID_SUPP_RATES: | |
1117 | elems->supp_rates = pos; | |
1118 | elems->supp_rates_len = elen; | |
1119 | break; | |
dd76986b | 1120 | case WLAN_EID_DS_PARAMS: |
1cd8e88e JB |
1121 | if (elen >= 1) |
1122 | elems->ds_params = pos; | |
1123 | else | |
1124 | elem_parse_failed = true; | |
dd76986b | 1125 | break; |
dd76986b JB |
1126 | case WLAN_EID_TIM: |
1127 | if (elen >= sizeof(struct ieee80211_tim_ie)) { | |
1128 | elems->tim = (void *)pos; | |
1129 | elems->tim_len = elen; | |
fcff4f10 PS |
1130 | } else |
1131 | elem_parse_failed = true; | |
dd76986b | 1132 | break; |
dd76986b JB |
1133 | case WLAN_EID_VENDOR_SPECIFIC: |
1134 | if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && | |
1135 | pos[2] == 0xf2) { | |
1136 | /* Microsoft OUI (00:50:F2) */ | |
1137 | ||
1138 | if (calc_crc) | |
1139 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1140 | ||
441a33ba | 1141 | if (elen >= 5 && pos[3] == 2) { |
dd76986b JB |
1142 | /* OUI Type 2 - WMM IE */ |
1143 | if (pos[4] == 0) { | |
1144 | elems->wmm_info = pos; | |
1145 | elems->wmm_info_len = elen; | |
1146 | } else if (pos[4] == 1) { | |
1147 | elems->wmm_param = pos; | |
1148 | elems->wmm_param_len = elen; | |
1149 | } | |
1150 | } | |
1151 | } | |
1152 | break; | |
1153 | case WLAN_EID_RSN: | |
1154 | elems->rsn = pos; | |
1155 | elems->rsn_len = elen; | |
1156 | break; | |
1157 | case WLAN_EID_ERP_INFO: | |
1946bed9 JB |
1158 | if (elen >= 1) |
1159 | elems->erp_info = pos; | |
1160 | else | |
1161 | elem_parse_failed = true; | |
dd76986b JB |
1162 | break; |
1163 | case WLAN_EID_EXT_SUPP_RATES: | |
1164 | elems->ext_supp_rates = pos; | |
1165 | elems->ext_supp_rates_len = elen; | |
1166 | break; | |
1167 | case WLAN_EID_HT_CAPABILITY: | |
1168 | if (elen >= sizeof(struct ieee80211_ht_cap)) | |
1169 | elems->ht_cap_elem = (void *)pos; | |
fcff4f10 PS |
1170 | else |
1171 | elem_parse_failed = true; | |
dd76986b | 1172 | break; |
074d46d1 JB |
1173 | case WLAN_EID_HT_OPERATION: |
1174 | if (elen >= sizeof(struct ieee80211_ht_operation)) | |
1175 | elems->ht_operation = (void *)pos; | |
fcff4f10 PS |
1176 | else |
1177 | elem_parse_failed = true; | |
dd76986b | 1178 | break; |
818255ea MP |
1179 | case WLAN_EID_VHT_CAPABILITY: |
1180 | if (elen >= sizeof(struct ieee80211_vht_cap)) | |
1181 | elems->vht_cap_elem = (void *)pos; | |
1182 | else | |
1183 | elem_parse_failed = true; | |
1184 | break; | |
1185 | case WLAN_EID_VHT_OPERATION: | |
a04564c9 | 1186 | if (elen >= sizeof(struct ieee80211_vht_operation)) { |
818255ea | 1187 | elems->vht_operation = (void *)pos; |
a04564c9 JB |
1188 | if (calc_crc) |
1189 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1190 | break; | |
1191 | } | |
1192 | elem_parse_failed = true; | |
818255ea | 1193 | break; |
bee7f586 | 1194 | case WLAN_EID_OPMODE_NOTIF: |
a04564c9 | 1195 | if (elen > 0) { |
bee7f586 | 1196 | elems->opmode_notif = pos; |
a04564c9 JB |
1197 | if (calc_crc) |
1198 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1199 | break; | |
1200 | } | |
1201 | elem_parse_failed = true; | |
bee7f586 | 1202 | break; |
dd76986b JB |
1203 | case WLAN_EID_MESH_ID: |
1204 | elems->mesh_id = pos; | |
1205 | elems->mesh_id_len = elen; | |
1206 | break; | |
1207 | case WLAN_EID_MESH_CONFIG: | |
1208 | if (elen >= sizeof(struct ieee80211_meshconf_ie)) | |
1209 | elems->mesh_config = (void *)pos; | |
fcff4f10 PS |
1210 | else |
1211 | elem_parse_failed = true; | |
dd76986b JB |
1212 | break; |
1213 | case WLAN_EID_PEER_MGMT: | |
1214 | elems->peering = pos; | |
1215 | elems->peering_len = elen; | |
1216 | break; | |
3f52b7e3 MP |
1217 | case WLAN_EID_MESH_AWAKE_WINDOW: |
1218 | if (elen >= 2) | |
1219 | elems->awake_window = (void *)pos; | |
1220 | break; | |
dd76986b JB |
1221 | case WLAN_EID_PREQ: |
1222 | elems->preq = pos; | |
1223 | elems->preq_len = elen; | |
1224 | break; | |
1225 | case WLAN_EID_PREP: | |
1226 | elems->prep = pos; | |
1227 | elems->prep_len = elen; | |
1228 | break; | |
1229 | case WLAN_EID_PERR: | |
1230 | elems->perr = pos; | |
1231 | elems->perr_len = elen; | |
1232 | break; | |
1233 | case WLAN_EID_RANN: | |
1234 | if (elen >= sizeof(struct ieee80211_rann_ie)) | |
1235 | elems->rann = (void *)pos; | |
fcff4f10 PS |
1236 | else |
1237 | elem_parse_failed = true; | |
dd76986b JB |
1238 | break; |
1239 | case WLAN_EID_CHANNEL_SWITCH: | |
5bc1420b JB |
1240 | if (elen != sizeof(struct ieee80211_channel_sw_ie)) { |
1241 | elem_parse_failed = true; | |
1242 | break; | |
1243 | } | |
1244 | elems->ch_switch_ie = (void *)pos; | |
dd76986b | 1245 | break; |
b4f286a1 JB |
1246 | case WLAN_EID_EXT_CHANSWITCH_ANN: |
1247 | if (elen != sizeof(struct ieee80211_ext_chansw_ie)) { | |
1248 | elem_parse_failed = true; | |
1249 | break; | |
1250 | } | |
1251 | elems->ext_chansw_ie = (void *)pos; | |
1252 | break; | |
85220d71 JB |
1253 | case WLAN_EID_SECONDARY_CHANNEL_OFFSET: |
1254 | if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) { | |
1255 | elem_parse_failed = true; | |
1256 | break; | |
1257 | } | |
1258 | elems->sec_chan_offs = (void *)pos; | |
1259 | break; | |
8f2535b9 | 1260 | case WLAN_EID_CHAN_SWITCH_PARAM: |
652e8363 | 1261 | if (elen < |
8f2535b9 CYY |
1262 | sizeof(*elems->mesh_chansw_params_ie)) { |
1263 | elem_parse_failed = true; | |
1264 | break; | |
1265 | } | |
1266 | elems->mesh_chansw_params_ie = (void *)pos; | |
1267 | break; | |
b2e506bf JB |
1268 | case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: |
1269 | if (!action || | |
652e8363 | 1270 | elen < sizeof(*elems->wide_bw_chansw_ie)) { |
b2e506bf JB |
1271 | elem_parse_failed = true; |
1272 | break; | |
1273 | } | |
1274 | elems->wide_bw_chansw_ie = (void *)pos; | |
1275 | break; | |
1276 | case WLAN_EID_CHANNEL_SWITCH_WRAPPER: | |
1277 | if (action) { | |
1278 | elem_parse_failed = true; | |
1279 | break; | |
1280 | } | |
1281 | /* | |
1282 | * This is a bit tricky, but as we only care about | |
1283 | * the wide bandwidth channel switch element, so | |
1284 | * just parse it out manually. | |
1285 | */ | |
1286 | ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, | |
1287 | pos, elen); | |
1288 | if (ie) { | |
652e8363 | 1289 | if (ie[1] >= sizeof(*elems->wide_bw_chansw_ie)) |
b2e506bf JB |
1290 | elems->wide_bw_chansw_ie = |
1291 | (void *)(ie + 2); | |
1292 | else | |
1293 | elem_parse_failed = true; | |
1294 | } | |
1295 | break; | |
dd76986b JB |
1296 | case WLAN_EID_COUNTRY: |
1297 | elems->country_elem = pos; | |
1298 | elems->country_elem_len = elen; | |
1299 | break; | |
1300 | case WLAN_EID_PWR_CONSTRAINT: | |
761a48d2 JB |
1301 | if (elen != 1) { |
1302 | elem_parse_failed = true; | |
1303 | break; | |
1304 | } | |
dd76986b | 1305 | elems->pwr_constr_elem = pos; |
dd76986b | 1306 | break; |
c8d65917 SG |
1307 | case WLAN_EID_CISCO_VENDOR_SPECIFIC: |
1308 | /* Lots of different options exist, but we only care | |
1309 | * about the Dynamic Transmit Power Control element. | |
1310 | * First check for the Cisco OUI, then for the DTPC | |
1311 | * tag (0x00). | |
1312 | */ | |
1313 | if (elen < 4) { | |
1314 | elem_parse_failed = true; | |
1315 | break; | |
1316 | } | |
1317 | ||
1318 | if (pos[0] != 0x00 || pos[1] != 0x40 || | |
1319 | pos[2] != 0x96 || pos[3] != 0x00) | |
1320 | break; | |
1321 | ||
1322 | if (elen != 6) { | |
1323 | elem_parse_failed = true; | |
1324 | break; | |
1325 | } | |
1326 | ||
1327 | if (calc_crc) | |
1328 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1329 | ||
1330 | elems->cisco_dtpc_elem = pos; | |
1331 | break; | |
2aa485e1 | 1332 | case WLAN_EID_ADDBA_EXT: |
652e8363 | 1333 | if (elen < sizeof(struct ieee80211_addba_ext_ie)) { |
2aa485e1 JC |
1334 | elem_parse_failed = true; |
1335 | break; | |
1336 | } | |
1337 | elems->addba_ext_ie = (void *)pos; | |
1338 | break; | |
dd76986b | 1339 | case WLAN_EID_TIMEOUT_INTERVAL: |
79ba1d89 JB |
1340 | if (elen >= sizeof(struct ieee80211_timeout_interval_ie)) |
1341 | elems->timeout_int = (void *)pos; | |
1342 | else | |
1343 | elem_parse_failed = true; | |
dd76986b | 1344 | break; |
e38a017b AS |
1345 | case WLAN_EID_BSS_MAX_IDLE_PERIOD: |
1346 | if (elen >= sizeof(*elems->max_idle_period_ie)) | |
1347 | elems->max_idle_period_ie = (void *)pos; | |
1348 | break; | |
c0058df7 ST |
1349 | case WLAN_EID_RSNX: |
1350 | elems->rsnx = pos; | |
1351 | elems->rsnx_len = elen; | |
1352 | break; | |
b0345850 WG |
1353 | case WLAN_EID_TX_POWER_ENVELOPE: |
1354 | if (elen < 1 || | |
1355 | elen > sizeof(struct ieee80211_tx_pwr_env)) | |
1356 | break; | |
1357 | ||
1358 | if (elems->tx_pwr_env_num >= ARRAY_SIZE(elems->tx_pwr_env)) | |
1359 | break; | |
1360 | ||
1361 | elems->tx_pwr_env[elems->tx_pwr_env_num] = (void *)pos; | |
1362 | elems->tx_pwr_env_len[elems->tx_pwr_env_num] = elen; | |
1363 | elems->tx_pwr_env_num++; | |
1364 | break; | |
41cbb0f5 | 1365 | case WLAN_EID_EXTENSION: |
e4d005b8 JB |
1366 | ieee80211_parse_extension_element(calc_crc ? |
1367 | &crc : NULL, | |
1368 | elem, elems); | |
41cbb0f5 | 1369 | break; |
cd418ba6 | 1370 | case WLAN_EID_S1G_CAPABILITIES: |
652e8363 | 1371 | if (elen >= sizeof(*elems->s1g_capab)) |
cd418ba6 TP |
1372 | elems->s1g_capab = (void *)pos; |
1373 | else | |
1374 | elem_parse_failed = true; | |
1375 | break; | |
1376 | case WLAN_EID_S1G_OPERATION: | |
1377 | if (elen == sizeof(*elems->s1g_oper)) | |
1378 | elems->s1g_oper = (void *)pos; | |
1379 | else | |
1380 | elem_parse_failed = true; | |
1381 | break; | |
1382 | case WLAN_EID_S1G_BCN_COMPAT: | |
1383 | if (elen == sizeof(*elems->s1g_bcn_compat)) | |
1384 | elems->s1g_bcn_compat = (void *)pos; | |
1385 | else | |
1386 | elem_parse_failed = true; | |
1387 | break; | |
1d00ce80 TP |
1388 | case WLAN_EID_AID_RESPONSE: |
1389 | if (elen == sizeof(struct ieee80211_aid_response_ie)) | |
1390 | elems->aid_resp = (void *)pos; | |
1391 | else | |
1392 | elem_parse_failed = true; | |
1393 | break; | |
dd76986b JB |
1394 | default: |
1395 | break; | |
1396 | } | |
1397 | ||
fcff4f10 PS |
1398 | if (elem_parse_failed) |
1399 | elems->parse_error = true; | |
1400 | else | |
5df45690 | 1401 | __set_bit(id, seen_elems); |
dd76986b JB |
1402 | } |
1403 | ||
c17e28d1 | 1404 | if (!for_each_element_completed(elem, start, len)) |
fcff4f10 PS |
1405 | elems->parse_error = true; |
1406 | ||
dd76986b JB |
1407 | return crc; |
1408 | } | |
1409 | ||
5023b14c SS |
1410 | static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len, |
1411 | struct ieee802_11_elems *elems, | |
5d24828d JB |
1412 | const u8 *transmitter_bssid, |
1413 | const u8 *bss_bssid, | |
5809a5d5 | 1414 | u8 *nontransmitted_profile) |
671042a4 SS |
1415 | { |
1416 | const struct element *elem, *sub; | |
5023b14c SS |
1417 | size_t profile_len = 0; |
1418 | bool found = false; | |
671042a4 SS |
1419 | |
1420 | if (!bss_bssid || !transmitter_bssid) | |
5023b14c | 1421 | return profile_len; |
671042a4 SS |
1422 | |
1423 | for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, start, len) { | |
1424 | if (elem->datalen < 2) | |
1425 | continue; | |
1426 | ||
1427 | for_each_element(sub, elem->data + 1, elem->datalen - 1) { | |
1428 | u8 new_bssid[ETH_ALEN]; | |
1429 | const u8 *index; | |
1430 | ||
1431 | if (sub->id != 0 || sub->datalen < 4) { | |
1432 | /* not a valid BSS profile */ | |
1433 | continue; | |
1434 | } | |
1435 | ||
1436 | if (sub->data[0] != WLAN_EID_NON_TX_BSSID_CAP || | |
1437 | sub->data[1] != 2) { | |
1438 | /* The first element of the | |
1439 | * Nontransmitted BSSID Profile is not | |
1440 | * the Nontransmitted BSSID Capability | |
1441 | * element. | |
1442 | */ | |
1443 | continue; | |
1444 | } | |
1445 | ||
5809a5d5 | 1446 | memset(nontransmitted_profile, 0, len); |
5023b14c SS |
1447 | profile_len = cfg80211_merge_profile(start, len, |
1448 | elem, | |
1449 | sub, | |
1450 | nontransmitted_profile, | |
1451 | len); | |
1452 | ||
671042a4 SS |
1453 | /* found a Nontransmitted BSSID Profile */ |
1454 | index = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, | |
5809a5d5 | 1455 | nontransmitted_profile, |
5023b14c | 1456 | profile_len); |
671042a4 SS |
1457 | if (!index || index[1] < 1 || index[2] == 0) { |
1458 | /* Invalid MBSSID Index element */ | |
1459 | continue; | |
1460 | } | |
1461 | ||
1462 | cfg80211_gen_new_bssid(transmitter_bssid, | |
1463 | elem->data[0], | |
1464 | index[2], | |
1465 | new_bssid); | |
1466 | if (ether_addr_equal(new_bssid, bss_bssid)) { | |
5023b14c | 1467 | found = true; |
671042a4 SS |
1468 | elems->bssid_index_len = index[1]; |
1469 | elems->bssid_index = (void *)&index[2]; | |
1470 | break; | |
1471 | } | |
1472 | } | |
1473 | } | |
5023b14c SS |
1474 | |
1475 | return found ? profile_len : 0; | |
671042a4 SS |
1476 | } |
1477 | ||
5d24828d JB |
1478 | struct ieee802_11_elems *ieee802_11_parse_elems_crc(const u8 *start, size_t len, |
1479 | bool action, u64 filter, | |
1480 | u32 crc, | |
1481 | const u8 *transmitter_bssid, | |
1482 | const u8 *bss_bssid) | |
78ac51f8 | 1483 | { |
5d24828d | 1484 | struct ieee802_11_elems *elems; |
671042a4 | 1485 | const struct element *non_inherit = NULL; |
5023b14c SS |
1486 | u8 *nontransmitted_profile; |
1487 | int nontransmitted_profile_len = 0; | |
671042a4 | 1488 | |
5d24828d JB |
1489 | elems = kzalloc(sizeof(*elems), GFP_ATOMIC); |
1490 | if (!elems) | |
1491 | return NULL; | |
78ac51f8 SS |
1492 | elems->ie_start = start; |
1493 | elems->total_len = len; | |
1494 | ||
5023b14c SS |
1495 | nontransmitted_profile = kmalloc(len, GFP_ATOMIC); |
1496 | if (nontransmitted_profile) { | |
1497 | nontransmitted_profile_len = | |
1498 | ieee802_11_find_bssid_profile(start, len, elems, | |
1499 | transmitter_bssid, | |
1500 | bss_bssid, | |
5809a5d5 | 1501 | nontransmitted_profile); |
671042a4 SS |
1502 | non_inherit = |
1503 | cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, | |
5023b14c SS |
1504 | nontransmitted_profile, |
1505 | nontransmitted_profile_len); | |
1506 | } | |
671042a4 | 1507 | |
78ac51f8 | 1508 | crc = _ieee802_11_parse_elems_crc(start, len, action, elems, filter, |
671042a4 | 1509 | crc, non_inherit); |
78ac51f8 SS |
1510 | |
1511 | /* Override with nontransmitted profile, if found */ | |
5023b14c SS |
1512 | if (nontransmitted_profile_len) |
1513 | _ieee802_11_parse_elems_crc(nontransmitted_profile, | |
1514 | nontransmitted_profile_len, | |
671042a4 | 1515 | action, elems, 0, 0, NULL); |
78ac51f8 SS |
1516 | |
1517 | if (elems->tim && !elems->parse_error) { | |
1518 | const struct ieee80211_tim_ie *tim_ie = elems->tim; | |
1519 | ||
1520 | elems->dtim_period = tim_ie->dtim_period; | |
1521 | elems->dtim_count = tim_ie->dtim_count; | |
1522 | } | |
1523 | ||
1524 | /* Override DTIM period and count if needed */ | |
1525 | if (elems->bssid_index && | |
1526 | elems->bssid_index_len >= | |
1527 | offsetofend(struct ieee80211_bssid_index, dtim_period)) | |
1528 | elems->dtim_period = elems->bssid_index->dtim_period; | |
1529 | ||
1530 | if (elems->bssid_index && | |
1531 | elems->bssid_index_len >= | |
1532 | offsetofend(struct ieee80211_bssid_index, dtim_count)) | |
1533 | elems->dtim_count = elems->bssid_index->dtim_count; | |
1534 | ||
5023b14c SS |
1535 | kfree(nontransmitted_profile); |
1536 | ||
c6e37ed4 | 1537 | elems->crc = crc; |
5d24828d JB |
1538 | |
1539 | return elems; | |
78ac51f8 SS |
1540 | } |
1541 | ||
e552af05 HD |
1542 | void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, |
1543 | struct ieee80211_tx_queue_params | |
1544 | *qparam, int ac) | |
1545 | { | |
1546 | struct ieee80211_chanctx_conf *chanctx_conf; | |
1547 | const struct ieee80211_reg_rule *rrule; | |
38cb87ee | 1548 | const struct ieee80211_wmm_ac *wmm_ac; |
e552af05 HD |
1549 | u16 center_freq = 0; |
1550 | ||
1551 | if (sdata->vif.type != NL80211_IFTYPE_AP && | |
1552 | sdata->vif.type != NL80211_IFTYPE_STATION) | |
1553 | return; | |
1554 | ||
1555 | rcu_read_lock(); | |
1556 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); | |
1557 | if (chanctx_conf) | |
1558 | center_freq = chanctx_conf->def.chan->center_freq; | |
1559 | ||
1560 | if (!center_freq) { | |
1561 | rcu_read_unlock(); | |
1562 | return; | |
1563 | } | |
1564 | ||
1565 | rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq)); | |
1566 | ||
38cb87ee | 1567 | if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) { |
e552af05 HD |
1568 | rcu_read_unlock(); |
1569 | return; | |
1570 | } | |
1571 | ||
1572 | if (sdata->vif.type == NL80211_IFTYPE_AP) | |
38cb87ee | 1573 | wmm_ac = &rrule->wmm_rule.ap[ac]; |
e552af05 | 1574 | else |
38cb87ee | 1575 | wmm_ac = &rrule->wmm_rule.client[ac]; |
e552af05 HD |
1576 | qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min); |
1577 | qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max); | |
1578 | qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn); | |
abd76d25 | 1579 | qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32); |
e552af05 HD |
1580 | rcu_read_unlock(); |
1581 | } | |
1582 | ||
3abead59 | 1583 | void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, |
cec66283 | 1584 | bool bss_notify, bool enable_qos) |
5825fe10 JB |
1585 | { |
1586 | struct ieee80211_local *local = sdata->local; | |
1587 | struct ieee80211_tx_queue_params qparam; | |
55de908a | 1588 | struct ieee80211_chanctx_conf *chanctx_conf; |
54bcbc69 | 1589 | int ac; |
cec66283 | 1590 | bool use_11b; |
239281f8 | 1591 | bool is_ocb; /* Use another EDCA parameters if dot11OCBActivated=true */ |
aa837e1d | 1592 | int aCWmin, aCWmax; |
5825fe10 JB |
1593 | |
1594 | if (!local->ops->conf_tx) | |
1595 | return; | |
1596 | ||
54bcbc69 JB |
1597 | if (local->hw.queues < IEEE80211_NUM_ACS) |
1598 | return; | |
1599 | ||
5825fe10 JB |
1600 | memset(&qparam, 0, sizeof(qparam)); |
1601 | ||
55de908a JB |
1602 | rcu_read_lock(); |
1603 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); | |
1604 | use_11b = (chanctx_conf && | |
57fbcce3 | 1605 | chanctx_conf->def.chan->band == NL80211_BAND_2GHZ) && |
aa837e1d | 1606 | !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE); |
55de908a | 1607 | rcu_read_unlock(); |
5825fe10 | 1608 | |
239281f8 RL |
1609 | is_ocb = (sdata->vif.type == NL80211_IFTYPE_OCB); |
1610 | ||
1f4ffde8 FZ |
1611 | /* Set defaults according to 802.11-2007 Table 7-37 */ |
1612 | aCWmax = 1023; | |
1613 | if (use_11b) | |
1614 | aCWmin = 31; | |
1615 | else | |
1616 | aCWmin = 15; | |
1617 | ||
1618 | /* Confiure old 802.11b/g medium access rules. */ | |
1619 | qparam.cw_max = aCWmax; | |
1620 | qparam.cw_min = aCWmin; | |
1621 | qparam.txop = 0; | |
1622 | qparam.aifs = 2; | |
aa837e1d | 1623 | |
1f4ffde8 FZ |
1624 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { |
1625 | /* Update if QoS is enabled. */ | |
a8ce8544 SG |
1626 | if (enable_qos) { |
1627 | switch (ac) { | |
1628 | case IEEE80211_AC_BK: | |
1629 | qparam.cw_max = aCWmax; | |
1630 | qparam.cw_min = aCWmin; | |
1631 | qparam.txop = 0; | |
239281f8 RL |
1632 | if (is_ocb) |
1633 | qparam.aifs = 9; | |
1634 | else | |
1635 | qparam.aifs = 7; | |
a8ce8544 SG |
1636 | break; |
1637 | /* never happens but let's not leave undefined */ | |
1638 | default: | |
1639 | case IEEE80211_AC_BE: | |
1640 | qparam.cw_max = aCWmax; | |
1641 | qparam.cw_min = aCWmin; | |
1642 | qparam.txop = 0; | |
239281f8 RL |
1643 | if (is_ocb) |
1644 | qparam.aifs = 6; | |
1645 | else | |
1646 | qparam.aifs = 3; | |
a8ce8544 SG |
1647 | break; |
1648 | case IEEE80211_AC_VI: | |
1649 | qparam.cw_max = aCWmin; | |
1650 | qparam.cw_min = (aCWmin + 1) / 2 - 1; | |
239281f8 RL |
1651 | if (is_ocb) |
1652 | qparam.txop = 0; | |
1653 | else if (use_11b) | |
a8ce8544 SG |
1654 | qparam.txop = 6016/32; |
1655 | else | |
1656 | qparam.txop = 3008/32; | |
239281f8 RL |
1657 | |
1658 | if (is_ocb) | |
1659 | qparam.aifs = 3; | |
1660 | else | |
1661 | qparam.aifs = 2; | |
a8ce8544 SG |
1662 | break; |
1663 | case IEEE80211_AC_VO: | |
1664 | qparam.cw_max = (aCWmin + 1) / 2 - 1; | |
1665 | qparam.cw_min = (aCWmin + 1) / 4 - 1; | |
239281f8 RL |
1666 | if (is_ocb) |
1667 | qparam.txop = 0; | |
1668 | else if (use_11b) | |
a8ce8544 SG |
1669 | qparam.txop = 3264/32; |
1670 | else | |
1671 | qparam.txop = 1504/32; | |
1672 | qparam.aifs = 2; | |
1673 | break; | |
1674 | } | |
aa837e1d | 1675 | } |
e552af05 | 1676 | ieee80211_regulatory_limit_wmm_params(sdata, &qparam, ac); |
5825fe10 | 1677 | |
ab13315a KV |
1678 | qparam.uapsd = false; |
1679 | ||
54bcbc69 JB |
1680 | sdata->tx_conf[ac] = qparam; |
1681 | drv_conf_tx(local, sdata, ac, &qparam); | |
aa837e1d | 1682 | } |
e1b3ec1a | 1683 | |
f142c6b9 | 1684 | if (sdata->vif.type != NL80211_IFTYPE_MONITOR && |
708d50ed AB |
1685 | sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE && |
1686 | sdata->vif.type != NL80211_IFTYPE_NAN) { | |
a8ce8544 | 1687 | sdata->vif.bss_conf.qos = enable_qos; |
3abead59 JB |
1688 | if (bss_notify) |
1689 | ieee80211_bss_info_change_notify(sdata, | |
1690 | BSS_CHANGED_QOS); | |
d9734979 | 1691 | } |
5825fe10 | 1692 | } |
e50db65c | 1693 | |
46900298 | 1694 | void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, |
700e8ea6 | 1695 | u16 transaction, u16 auth_alg, u16 status, |
4a3cb702 | 1696 | const u8 *extra, size_t extra_len, const u8 *da, |
1672c0e3 JB |
1697 | const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx, |
1698 | u32 tx_flags) | |
46900298 JB |
1699 | { |
1700 | struct ieee80211_local *local = sdata->local; | |
1701 | struct sk_buff *skb; | |
1702 | struct ieee80211_mgmt *mgmt; | |
fffd0934 | 1703 | int err; |
46900298 | 1704 | |
15e230ab | 1705 | /* 24 + 6 = header + auth_algo + auth_transaction + status_code */ |
744462a9 MS |
1706 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN + |
1707 | 24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN); | |
d15b8459 | 1708 | if (!skb) |
46900298 | 1709 | return; |
d15b8459 | 1710 | |
744462a9 | 1711 | skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN); |
46900298 | 1712 | |
b080db58 | 1713 | mgmt = skb_put_zero(skb, 24 + 6); |
46900298 JB |
1714 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
1715 | IEEE80211_STYPE_AUTH); | |
efa6a09d | 1716 | memcpy(mgmt->da, da, ETH_ALEN); |
47846c9b | 1717 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); |
46900298 JB |
1718 | memcpy(mgmt->bssid, bssid, ETH_ALEN); |
1719 | mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg); | |
1720 | mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); | |
700e8ea6 | 1721 | mgmt->u.auth.status_code = cpu_to_le16(status); |
46900298 | 1722 | if (extra) |
59ae1d12 | 1723 | skb_put_data(skb, extra, extra_len); |
46900298 | 1724 | |
fffd0934 JB |
1725 | if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) { |
1726 | mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); | |
1727 | err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx); | |
7d7b0075 JB |
1728 | if (WARN_ON(err)) { |
1729 | kfree_skb(skb); | |
1730 | return; | |
1731 | } | |
fffd0934 JB |
1732 | } |
1733 | ||
1672c0e3 JB |
1734 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | |
1735 | tx_flags; | |
62ae67be | 1736 | ieee80211_tx_skb(sdata, skb); |
46900298 JB |
1737 | } |
1738 | ||
6ae16775 | 1739 | void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, |
4b08d1b6 JB |
1740 | const u8 *da, const u8 *bssid, |
1741 | u16 stype, u16 reason, | |
6ae16775 AQ |
1742 | bool send_frame, u8 *frame_buf) |
1743 | { | |
1744 | struct ieee80211_local *local = sdata->local; | |
1745 | struct sk_buff *skb; | |
1746 | struct ieee80211_mgmt *mgmt = (void *)frame_buf; | |
1747 | ||
1748 | /* build frame */ | |
1749 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); | |
1750 | mgmt->duration = 0; /* initialize only */ | |
1751 | mgmt->seq_ctrl = 0; /* initialize only */ | |
4b08d1b6 | 1752 | memcpy(mgmt->da, da, ETH_ALEN); |
6ae16775 AQ |
1753 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); |
1754 | memcpy(mgmt->bssid, bssid, ETH_ALEN); | |
1755 | /* u.deauth.reason_code == u.disassoc.reason_code */ | |
1756 | mgmt->u.deauth.reason_code = cpu_to_le16(reason); | |
1757 | ||
1758 | if (send_frame) { | |
1759 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + | |
1760 | IEEE80211_DEAUTH_FRAME_LEN); | |
1761 | if (!skb) | |
1762 | return; | |
1763 | ||
1764 | skb_reserve(skb, local->hw.extra_tx_headroom); | |
1765 | ||
1766 | /* copy in frame */ | |
59ae1d12 | 1767 | skb_put_data(skb, mgmt, IEEE80211_DEAUTH_FRAME_LEN); |
6ae16775 AQ |
1768 | |
1769 | if (sdata->vif.type != NL80211_IFTYPE_STATION || | |
1770 | !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED)) | |
1771 | IEEE80211_SKB_CB(skb)->flags |= | |
1772 | IEEE80211_TX_INTFL_DONT_ENCRYPT; | |
1773 | ||
1774 | ieee80211_tx_skb(sdata, skb); | |
1775 | } | |
1776 | } | |
1777 | ||
2ad2274c IP |
1778 | static u8 *ieee80211_write_he_6ghz_cap(u8 *pos, __le16 cap, u8 *end) |
1779 | { | |
1780 | if ((end - pos) < 5) | |
1781 | return pos; | |
1782 | ||
1783 | *pos++ = WLAN_EID_EXTENSION; | |
1784 | *pos++ = 1 + sizeof(cap); | |
1785 | *pos++ = WLAN_EID_EXT_HE_6GHZ_CAPA; | |
1786 | memcpy(pos, &cap, sizeof(cap)); | |
1787 | ||
1788 | return pos + 2; | |
1789 | } | |
1790 | ||
1791 | static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata, | |
c56ef672 DS |
1792 | u8 *buffer, size_t buffer_len, |
1793 | const u8 *ie, size_t ie_len, | |
57fbcce3 | 1794 | enum nl80211_band band, |
c56ef672 DS |
1795 | u32 rate_mask, |
1796 | struct cfg80211_chan_def *chandef, | |
00387f32 | 1797 | size_t *offset, u32 flags) |
de95a54b | 1798 | { |
2ad2274c | 1799 | struct ieee80211_local *local = sdata->local; |
de95a54b | 1800 | struct ieee80211_supported_band *sband; |
41cbb0f5 | 1801 | const struct ieee80211_sta_he_cap *he_cap; |
c604b9f2 | 1802 | u8 *pos = buffer, *end = buffer + buffer_len; |
c56ef672 | 1803 | size_t noffset; |
8e664fb3 | 1804 | int supp_rates_len, i; |
8dcb2003 JM |
1805 | u8 rates[32]; |
1806 | int num_rates; | |
1807 | int ext_rates_len; | |
2103dec1 SW |
1808 | int shift; |
1809 | u32 rate_flags; | |
40a11ca8 | 1810 | bool have_80mhz = false; |
de95a54b | 1811 | |
c56ef672 DS |
1812 | *offset = 0; |
1813 | ||
4d36ec58 | 1814 | sband = local->hw.wiphy->bands[band]; |
d811b3d5 AN |
1815 | if (WARN_ON_ONCE(!sband)) |
1816 | return 0; | |
de95a54b | 1817 | |
2103dec1 SW |
1818 | rate_flags = ieee80211_chandef_rate_flags(chandef); |
1819 | shift = ieee80211_chandef_get_shift(chandef); | |
1820 | ||
8dcb2003 JM |
1821 | num_rates = 0; |
1822 | for (i = 0; i < sband->n_bitrates; i++) { | |
1823 | if ((BIT(i) & rate_mask) == 0) | |
1824 | continue; /* skip rate */ | |
2103dec1 SW |
1825 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) |
1826 | continue; | |
1827 | ||
1828 | rates[num_rates++] = | |
1829 | (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, | |
1830 | (1 << shift) * 5); | |
8dcb2003 JM |
1831 | } |
1832 | ||
1833 | supp_rates_len = min_t(int, num_rates, 8); | |
8e664fb3 | 1834 | |
c604b9f2 JB |
1835 | if (end - pos < 2 + supp_rates_len) |
1836 | goto out_err; | |
de95a54b | 1837 | *pos++ = WLAN_EID_SUPP_RATES; |
8e664fb3 | 1838 | *pos++ = supp_rates_len; |
8dcb2003 JM |
1839 | memcpy(pos, rates, supp_rates_len); |
1840 | pos += supp_rates_len; | |
8e664fb3 JB |
1841 | |
1842 | /* insert "request information" if in custom IEs */ | |
1843 | if (ie && ie_len) { | |
1844 | static const u8 before_extrates[] = { | |
1845 | WLAN_EID_SSID, | |
1846 | WLAN_EID_SUPP_RATES, | |
1847 | WLAN_EID_REQUEST, | |
1848 | }; | |
1849 | noffset = ieee80211_ie_split(ie, ie_len, | |
1850 | before_extrates, | |
1851 | ARRAY_SIZE(before_extrates), | |
c56ef672 DS |
1852 | *offset); |
1853 | if (end - pos < noffset - *offset) | |
c604b9f2 | 1854 | goto out_err; |
c56ef672 DS |
1855 | memcpy(pos, ie + *offset, noffset - *offset); |
1856 | pos += noffset - *offset; | |
1857 | *offset = noffset; | |
8e664fb3 JB |
1858 | } |
1859 | ||
8dcb2003 JM |
1860 | ext_rates_len = num_rates - supp_rates_len; |
1861 | if (ext_rates_len > 0) { | |
c604b9f2 JB |
1862 | if (end - pos < 2 + ext_rates_len) |
1863 | goto out_err; | |
8e664fb3 | 1864 | *pos++ = WLAN_EID_EXT_SUPP_RATES; |
8dcb2003 JM |
1865 | *pos++ = ext_rates_len; |
1866 | memcpy(pos, rates + supp_rates_len, ext_rates_len); | |
1867 | pos += ext_rates_len; | |
8e664fb3 JB |
1868 | } |
1869 | ||
57fbcce3 | 1870 | if (chandef->chan && sband->band == NL80211_BAND_2GHZ) { |
c604b9f2 JB |
1871 | if (end - pos < 3) |
1872 | goto out_err; | |
651b5225 JM |
1873 | *pos++ = WLAN_EID_DS_PARAMS; |
1874 | *pos++ = 1; | |
2103dec1 SW |
1875 | *pos++ = ieee80211_frequency_to_channel( |
1876 | chandef->chan->center_freq); | |
651b5225 JM |
1877 | } |
1878 | ||
b9771d41 JB |
1879 | if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT) |
1880 | goto done; | |
1881 | ||
8e664fb3 JB |
1882 | /* insert custom IEs that go before HT */ |
1883 | if (ie && ie_len) { | |
1884 | static const u8 before_ht[] = { | |
a7f26d80 JB |
1885 | /* |
1886 | * no need to list the ones split off already | |
1887 | * (or generated here) | |
1888 | */ | |
8e664fb3 JB |
1889 | WLAN_EID_DS_PARAMS, |
1890 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, | |
1891 | }; | |
1892 | noffset = ieee80211_ie_split(ie, ie_len, | |
1893 | before_ht, ARRAY_SIZE(before_ht), | |
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; | |
de95a54b JB |
1900 | } |
1901 | ||
c604b9f2 JB |
1902 | if (sband->ht_cap.ht_supported) { |
1903 | if (end - pos < 2 + sizeof(struct ieee80211_ht_cap)) | |
1904 | goto out_err; | |
ef96a842 BG |
1905 | pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, |
1906 | sband->ht_cap.cap); | |
c604b9f2 | 1907 | } |
5ef2d41a | 1908 | |
4d952300 | 1909 | /* insert custom IEs that go before VHT */ |
8e664fb3 | 1910 | if (ie && ie_len) { |
4d952300 | 1911 | static const u8 before_vht[] = { |
a7f26d80 JB |
1912 | /* |
1913 | * no need to list the ones split off already | |
1914 | * (or generated here) | |
1915 | */ | |
4d952300 JB |
1916 | WLAN_EID_BSS_COEX_2040, |
1917 | WLAN_EID_EXT_CAPABILITY, | |
1918 | WLAN_EID_SSID_LIST, | |
1919 | WLAN_EID_CHANNEL_USAGE, | |
1920 | WLAN_EID_INTERWORKING, | |
b44eebea | 1921 | WLAN_EID_MESH_ID, |
a7f26d80 | 1922 | /* 60 GHz (Multi-band, DMG, MMS) can't happen */ |
4d952300 JB |
1923 | }; |
1924 | noffset = ieee80211_ie_split(ie, ie_len, | |
1925 | before_vht, ARRAY_SIZE(before_vht), | |
c56ef672 DS |
1926 | *offset); |
1927 | if (end - pos < noffset - *offset) | |
c604b9f2 | 1928 | goto out_err; |
c56ef672 DS |
1929 | memcpy(pos, ie + *offset, noffset - *offset); |
1930 | pos += noffset - *offset; | |
1931 | *offset = noffset; | |
de95a54b JB |
1932 | } |
1933 | ||
40a11ca8 JB |
1934 | /* Check if any channel in this sband supports at least 80 MHz */ |
1935 | for (i = 0; i < sband->n_channels; i++) { | |
fa44b988 AN |
1936 | if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | |
1937 | IEEE80211_CHAN_NO_80MHZ)) | |
1938 | continue; | |
1939 | ||
1940 | have_80mhz = true; | |
1941 | break; | |
40a11ca8 JB |
1942 | } |
1943 | ||
1944 | if (sband->vht_cap.vht_supported && have_80mhz) { | |
c604b9f2 JB |
1945 | if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) |
1946 | goto out_err; | |
ba0afa2f MP |
1947 | pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, |
1948 | sband->vht_cap.cap); | |
c604b9f2 | 1949 | } |
ba0afa2f | 1950 | |
41cbb0f5 LC |
1951 | /* insert custom IEs that go before HE */ |
1952 | if (ie && ie_len) { | |
1953 | static const u8 before_he[] = { | |
1954 | /* | |
1955 | * no need to list the ones split off before VHT | |
1956 | * or generated here | |
1957 | */ | |
1958 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS, | |
1959 | WLAN_EID_AP_CSN, | |
1960 | /* TODO: add 11ah/11aj/11ak elements */ | |
1961 | }; | |
1962 | noffset = ieee80211_ie_split(ie, ie_len, | |
1963 | before_he, ARRAY_SIZE(before_he), | |
1964 | *offset); | |
1965 | if (end - pos < noffset - *offset) | |
1966 | goto out_err; | |
1967 | memcpy(pos, ie + *offset, noffset - *offset); | |
1968 | pos += noffset - *offset; | |
1969 | *offset = noffset; | |
1970 | } | |
1971 | ||
bac2fd3d JB |
1972 | he_cap = ieee80211_get_he_iftype_cap(sband, |
1973 | ieee80211_vif_type_p2p(&sdata->vif)); | |
0bc47057 JB |
1974 | if (he_cap && |
1975 | cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band), | |
1976 | IEEE80211_CHAN_NO_HE)) { | |
1f2c1044 | 1977 | pos = ieee80211_ie_build_he_cap(0, pos, he_cap, end); |
41cbb0f5 LC |
1978 | if (!pos) |
1979 | goto out_err; | |
7d29bc50 JB |
1980 | } |
1981 | ||
1982 | if (cfg80211_any_usable_channels(local->hw.wiphy, | |
1983 | BIT(NL80211_BAND_6GHZ), | |
1984 | IEEE80211_CHAN_NO_HE)) { | |
1985 | struct ieee80211_supported_band *sband6; | |
1986 | ||
1987 | sband6 = local->hw.wiphy->bands[NL80211_BAND_6GHZ]; | |
1988 | he_cap = ieee80211_get_he_iftype_cap(sband6, | |
1989 | ieee80211_vif_type_p2p(&sdata->vif)); | |
2ad2274c | 1990 | |
7d29bc50 | 1991 | if (he_cap) { |
2ad2274c IP |
1992 | enum nl80211_iftype iftype = |
1993 | ieee80211_vif_type_p2p(&sdata->vif); | |
1994 | __le16 cap = ieee80211_get_he_6ghz_capa(sband, iftype); | |
1995 | ||
1996 | pos = ieee80211_write_he_6ghz_cap(pos, cap, end); | |
1997 | } | |
41cbb0f5 LC |
1998 | } |
1999 | ||
2000 | /* | |
2001 | * If adding more here, adjust code in main.c | |
2002 | * that calculates local->scan_ies_len. | |
2003 | */ | |
2004 | ||
c604b9f2 JB |
2005 | return pos - buffer; |
2006 | out_err: | |
2007 | WARN_ONCE(1, "not enough space for preq IEs\n"); | |
b9771d41 | 2008 | done: |
de95a54b JB |
2009 | return pos - buffer; |
2010 | } | |
2011 | ||
2ad2274c | 2012 | int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, |
c56ef672 DS |
2013 | size_t buffer_len, |
2014 | struct ieee80211_scan_ies *ie_desc, | |
2015 | const u8 *ie, size_t ie_len, | |
2016 | u8 bands_used, u32 *rate_masks, | |
00387f32 JB |
2017 | struct cfg80211_chan_def *chandef, |
2018 | u32 flags) | |
c56ef672 DS |
2019 | { |
2020 | size_t pos = 0, old_pos = 0, custom_ie_offset = 0; | |
2021 | int i; | |
2022 | ||
2023 | memset(ie_desc, 0, sizeof(*ie_desc)); | |
2024 | ||
57fbcce3 | 2025 | for (i = 0; i < NUM_NL80211_BANDS; i++) { |
c56ef672 | 2026 | if (bands_used & BIT(i)) { |
2ad2274c | 2027 | pos += ieee80211_build_preq_ies_band(sdata, |
c56ef672 DS |
2028 | buffer + pos, |
2029 | buffer_len - pos, | |
2030 | ie, ie_len, i, | |
2031 | rate_masks[i], | |
2032 | chandef, | |
00387f32 JB |
2033 | &custom_ie_offset, |
2034 | flags); | |
c56ef672 DS |
2035 | ie_desc->ies[i] = buffer + old_pos; |
2036 | ie_desc->len[i] = pos - old_pos; | |
2037 | old_pos = pos; | |
2038 | } | |
2039 | } | |
2040 | ||
2041 | /* add any remaining custom IEs */ | |
2042 | if (ie && ie_len) { | |
2043 | if (WARN_ONCE(buffer_len - pos < ie_len - custom_ie_offset, | |
2044 | "not enough space for preq custom IEs\n")) | |
2045 | return pos; | |
2046 | memcpy(buffer + pos, ie + custom_ie_offset, | |
2047 | ie_len - custom_ie_offset); | |
2048 | ie_desc->common_ies = buffer + pos; | |
2049 | ie_desc->common_ie_len = ie_len - custom_ie_offset; | |
2050 | pos += ie_len - custom_ie_offset; | |
2051 | } | |
2052 | ||
2053 | return pos; | |
2054 | }; | |
2055 | ||
a619a4c0 | 2056 | struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, |
a344d677 JB |
2057 | const u8 *src, const u8 *dst, |
2058 | u32 ratemask, | |
6b77863b | 2059 | struct ieee80211_channel *chan, |
a619a4c0 | 2060 | const u8 *ssid, size_t ssid_len, |
a806c558 | 2061 | const u8 *ie, size_t ie_len, |
00387f32 | 2062 | u32 flags) |
46900298 JB |
2063 | { |
2064 | struct ieee80211_local *local = sdata->local; | |
2103dec1 | 2065 | struct cfg80211_chan_def chandef; |
46900298 JB |
2066 | struct sk_buff *skb; |
2067 | struct ieee80211_mgmt *mgmt; | |
b9a9ada1 | 2068 | int ies_len; |
57fbcce3 | 2069 | u32 rate_masks[NUM_NL80211_BANDS] = {}; |
c56ef672 | 2070 | struct ieee80211_scan_ies dummy_ie_desc; |
46900298 | 2071 | |
a806c558 PS |
2072 | /* |
2073 | * Do not send DS Channel parameter for directed probe requests | |
2074 | * in order to maximize the chance that we get a response. Some | |
2075 | * badly-behaved APs don't respond when this parameter is included. | |
2076 | */ | |
2103dec1 | 2077 | chandef.width = sdata->vif.bss_conf.chandef.width; |
00387f32 | 2078 | if (flags & IEEE80211_PROBE_FLAG_DIRECTED) |
2103dec1 | 2079 | chandef.chan = NULL; |
a806c558 | 2080 | else |
2103dec1 | 2081 | chandef.chan = chan; |
651b5225 | 2082 | |
a344d677 | 2083 | skb = ieee80211_probereq_get(&local->hw, src, ssid, ssid_len, |
f22d9813 | 2084 | local->scan_ies_len + ie_len); |
5b2bbf75 | 2085 | if (!skb) |
b9a9ada1 JB |
2086 | return NULL; |
2087 | ||
c56ef672 | 2088 | rate_masks[chan->band] = ratemask; |
2ad2274c | 2089 | ies_len = ieee80211_build_preq_ies(sdata, skb_tail_pointer(skb), |
c56ef672 DS |
2090 | skb_tailroom(skb), &dummy_ie_desc, |
2091 | ie, ie_len, BIT(chan->band), | |
00387f32 | 2092 | rate_masks, &chandef, flags); |
b9a9ada1 | 2093 | skb_put(skb, ies_len); |
7c12ce8b | 2094 | |
46900298 | 2095 | if (dst) { |
7c12ce8b | 2096 | mgmt = (struct ieee80211_mgmt *) skb->data; |
46900298 JB |
2097 | memcpy(mgmt->da, dst, ETH_ALEN); |
2098 | memcpy(mgmt->bssid, dst, ETH_ALEN); | |
46900298 | 2099 | } |
46900298 | 2100 | |
62ae67be | 2101 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; |
5b2bbf75 | 2102 | |
a619a4c0 JO |
2103 | return skb; |
2104 | } | |
2105 | ||
2103dec1 | 2106 | u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, |
46900298 | 2107 | struct ieee802_11_elems *elems, |
57fbcce3 | 2108 | enum nl80211_band band, u32 *basic_rates) |
46900298 JB |
2109 | { |
2110 | struct ieee80211_supported_band *sband; | |
46900298 | 2111 | size_t num_rates; |
2103dec1 SW |
2112 | u32 supp_rates, rate_flags; |
2113 | int i, j, shift; | |
21a8e9dd | 2114 | |
2103dec1 | 2115 | sband = sdata->local->hw.wiphy->bands[band]; |
21a8e9dd MSS |
2116 | if (WARN_ON(!sband)) |
2117 | return 1; | |
2103dec1 SW |
2118 | |
2119 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
2120 | shift = ieee80211_vif_get_shift(&sdata->vif); | |
46900298 | 2121 | |
46900298 JB |
2122 | num_rates = sband->n_bitrates; |
2123 | supp_rates = 0; | |
2124 | for (i = 0; i < elems->supp_rates_len + | |
2125 | elems->ext_supp_rates_len; i++) { | |
2126 | u8 rate = 0; | |
2127 | int own_rate; | |
9ebb61a2 | 2128 | bool is_basic; |
46900298 JB |
2129 | if (i < elems->supp_rates_len) |
2130 | rate = elems->supp_rates[i]; | |
2131 | else if (elems->ext_supp_rates) | |
2132 | rate = elems->ext_supp_rates | |
2133 | [i - elems->supp_rates_len]; | |
2134 | own_rate = 5 * (rate & 0x7f); | |
9ebb61a2 AN |
2135 | is_basic = !!(rate & 0x80); |
2136 | ||
2137 | if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY) | |
2138 | continue; | |
2139 | ||
2140 | for (j = 0; j < num_rates; j++) { | |
2103dec1 SW |
2141 | int brate; |
2142 | if ((rate_flags & sband->bitrates[j].flags) | |
2143 | != rate_flags) | |
2144 | continue; | |
2145 | ||
2146 | brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, | |
2147 | 1 << shift); | |
2148 | ||
2149 | if (brate == own_rate) { | |
46900298 | 2150 | supp_rates |= BIT(j); |
9ebb61a2 AN |
2151 | if (basic_rates && is_basic) |
2152 | *basic_rates |= BIT(j); | |
2153 | } | |
2154 | } | |
46900298 JB |
2155 | } |
2156 | return supp_rates; | |
2157 | } | |
f2753ddb | 2158 | |
84f6a01c JB |
2159 | void ieee80211_stop_device(struct ieee80211_local *local) |
2160 | { | |
2161 | ieee80211_led_radio(local, false); | |
67408c8c | 2162 | ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO); |
84f6a01c JB |
2163 | |
2164 | cancel_work_sync(&local->reconfig_filter); | |
84f6a01c JB |
2165 | |
2166 | flush_workqueue(local->workqueue); | |
678f415f | 2167 | drv_stop(local); |
84f6a01c JB |
2168 | } |
2169 | ||
74430f94 JB |
2170 | static void ieee80211_flush_completed_scan(struct ieee80211_local *local, |
2171 | bool aborted) | |
2172 | { | |
2173 | /* It's possible that we don't handle the scan completion in | |
2174 | * time during suspend, so if it's still marked as completed | |
2175 | * here, queue the work and flush it to clean things up. | |
2176 | * Instead of calling the worker function directly here, we | |
2177 | * really queue it to avoid potential races with other flows | |
2178 | * scheduling the same work. | |
2179 | */ | |
2180 | if (test_bit(SCAN_COMPLETED, &local->scanning)) { | |
2181 | /* If coming from reconfiguration failure, abort the scan so | |
2182 | * we don't attempt to continue a partial HW scan - which is | |
2183 | * possible otherwise if (e.g.) the 2.4 GHz portion was the | |
2184 | * completed scan, and a 5 GHz portion is still pending. | |
2185 | */ | |
2186 | if (aborted) | |
2187 | set_bit(SCAN_ABORTED, &local->scanning); | |
2188 | ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); | |
2189 | flush_delayed_work(&local->scan_work); | |
2190 | } | |
2191 | } | |
2192 | ||
f6837ba8 JB |
2193 | static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) |
2194 | { | |
2195 | struct ieee80211_sub_if_data *sdata; | |
2196 | struct ieee80211_chanctx *ctx; | |
2197 | ||
2198 | /* | |
2199 | * We get here if during resume the device can't be restarted properly. | |
2200 | * We might also get here if this happens during HW reset, which is a | |
2201 | * slightly different situation and we need to drop all connections in | |
2202 | * the latter case. | |
2203 | * | |
2204 | * Ask cfg80211 to turn off all interfaces, this will result in more | |
2205 | * warnings but at least we'll then get into a clean stopped state. | |
2206 | */ | |
2207 | ||
2208 | local->resuming = false; | |
2209 | local->suspended = false; | |
7584f88f | 2210 | local->in_reconfig = false; |
f6837ba8 | 2211 | |
74430f94 JB |
2212 | ieee80211_flush_completed_scan(local, true); |
2213 | ||
f6837ba8 JB |
2214 | /* scheduled scan clearly can't be running any more, but tell |
2215 | * cfg80211 and clear local state | |
2216 | */ | |
2217 | ieee80211_sched_scan_end(local); | |
2218 | ||
2219 | list_for_each_entry(sdata, &local->interfaces, list) | |
2220 | sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER; | |
2221 | ||
2222 | /* Mark channel contexts as not being in the driver any more to avoid | |
2223 | * removing them from the driver during the shutdown process... | |
2224 | */ | |
2225 | mutex_lock(&local->chanctx_mtx); | |
2226 | list_for_each_entry(ctx, &local->chanctx_list, list) | |
2227 | ctx->driver_present = false; | |
2228 | mutex_unlock(&local->chanctx_mtx); | |
f6837ba8 JB |
2229 | } |
2230 | ||
153a5fc4 SG |
2231 | static void ieee80211_assign_chanctx(struct ieee80211_local *local, |
2232 | struct ieee80211_sub_if_data *sdata) | |
2233 | { | |
2234 | struct ieee80211_chanctx_conf *conf; | |
2235 | struct ieee80211_chanctx *ctx; | |
2236 | ||
2237 | if (!local->use_chanctx) | |
2238 | return; | |
2239 | ||
2240 | mutex_lock(&local->chanctx_mtx); | |
2241 | conf = rcu_dereference_protected(sdata->vif.chanctx_conf, | |
2242 | lockdep_is_held(&local->chanctx_mtx)); | |
2243 | if (conf) { | |
2244 | ctx = container_of(conf, struct ieee80211_chanctx, conf); | |
2245 | drv_assign_vif_chanctx(local, sdata, ctx); | |
2246 | } | |
2247 | mutex_unlock(&local->chanctx_mtx); | |
2248 | } | |
2249 | ||
1ea2c864 JB |
2250 | static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) |
2251 | { | |
2252 | struct ieee80211_local *local = sdata->local; | |
2253 | struct sta_info *sta; | |
2254 | ||
2255 | /* add STAs back */ | |
2256 | mutex_lock(&local->sta_mtx); | |
2257 | list_for_each_entry(sta, &local->sta_list, list) { | |
2258 | enum ieee80211_sta_state state; | |
2259 | ||
2260 | if (!sta->uploaded || sta->sdata != sdata) | |
2261 | continue; | |
2262 | ||
2263 | for (state = IEEE80211_STA_NOTEXIST; | |
2264 | state < sta->sta_state; state++) | |
2265 | WARN_ON(drv_sta_state(local, sta->sdata, sta, state, | |
2266 | state + 1)); | |
2267 | } | |
2268 | mutex_unlock(&local->sta_mtx); | |
2269 | } | |
2270 | ||
167e33f4 AB |
2271 | static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata) |
2272 | { | |
2273 | struct cfg80211_nan_func *func, **funcs; | |
2274 | int res, id, i = 0; | |
2275 | ||
2276 | res = drv_start_nan(sdata->local, sdata, | |
2277 | &sdata->u.nan.conf); | |
2278 | if (WARN_ON(res)) | |
2279 | return res; | |
2280 | ||
6396bb22 KC |
2281 | funcs = kcalloc(sdata->local->hw.max_nan_de_entries + 1, |
2282 | sizeof(*funcs), | |
2283 | GFP_KERNEL); | |
167e33f4 AB |
2284 | if (!funcs) |
2285 | return -ENOMEM; | |
2286 | ||
2287 | /* Add all the functions: | |
2288 | * This is a little bit ugly. We need to call a potentially sleeping | |
2289 | * callback for each NAN function, so we can't hold the spinlock. | |
2290 | */ | |
2291 | spin_lock_bh(&sdata->u.nan.func_lock); | |
2292 | ||
2293 | idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) | |
2294 | funcs[i++] = func; | |
2295 | ||
2296 | spin_unlock_bh(&sdata->u.nan.func_lock); | |
2297 | ||
2298 | for (i = 0; funcs[i]; i++) { | |
2299 | res = drv_add_nan_func(sdata->local, sdata, funcs[i]); | |
2300 | if (WARN_ON(res)) | |
2301 | ieee80211_nan_func_terminated(&sdata->vif, | |
2302 | funcs[i]->instance_id, | |
2303 | NL80211_NAN_FUNC_TERM_REASON_ERROR, | |
2304 | GFP_KERNEL); | |
2305 | } | |
2306 | ||
2307 | kfree(funcs); | |
2308 | ||
2309 | return 0; | |
2310 | } | |
2311 | ||
f2753ddb JB |
2312 | int ieee80211_reconfig(struct ieee80211_local *local) |
2313 | { | |
2314 | struct ieee80211_hw *hw = &local->hw; | |
2315 | struct ieee80211_sub_if_data *sdata; | |
55de908a | 2316 | struct ieee80211_chanctx *ctx; |
f2753ddb | 2317 | struct sta_info *sta; |
2683d65b | 2318 | int res, i; |
d888130a | 2319 | bool reconfig_due_to_wowlan = false; |
d43c6b6e | 2320 | struct ieee80211_sub_if_data *sched_scan_sdata; |
6ea0a69c | 2321 | struct cfg80211_sched_scan_request *sched_scan_req; |
d43c6b6e | 2322 | bool sched_scan_stopped = false; |
b0485e9f | 2323 | bool suspended = local->suspended; |
d888130a | 2324 | |
0f8b8245 EP |
2325 | /* nothing to do if HW shouldn't run */ |
2326 | if (!local->open_count) | |
2327 | goto wake_up; | |
2328 | ||
8f21b0ad | 2329 | #ifdef CONFIG_PM |
b0485e9f | 2330 | if (suspended) |
ceb99fe0 | 2331 | local->resuming = true; |
f2753ddb | 2332 | |
eecc4800 | 2333 | if (local->wowlan) { |
b0485e9f EP |
2334 | /* |
2335 | * In the wowlan case, both mac80211 and the device | |
2336 | * are functional when the resume op is called, so | |
2337 | * clear local->suspended so the device could operate | |
2338 | * normally (e.g. pass rx frames). | |
2339 | */ | |
2340 | local->suspended = false; | |
eecc4800 | 2341 | res = drv_resume(local); |
27b3eb9c | 2342 | local->wowlan = false; |
eecc4800 JB |
2343 | if (res < 0) { |
2344 | local->resuming = false; | |
2345 | return res; | |
2346 | } | |
2347 | if (res == 0) | |
2348 | goto wake_up; | |
2349 | WARN_ON(res > 1); | |
2350 | /* | |
2351 | * res is 1, which means the driver requested | |
2352 | * to go through a regular reset on wakeup. | |
b0485e9f | 2353 | * restore local->suspended in this case. |
eecc4800 | 2354 | */ |
d888130a | 2355 | reconfig_due_to_wowlan = true; |
b0485e9f | 2356 | local->suspended = true; |
eecc4800 JB |
2357 | } |
2358 | #endif | |
f2753ddb | 2359 | |
43d6df00 EP |
2360 | /* |
2361 | * In case of hw_restart during suspend (without wowlan), | |
2362 | * cancel restart work, as we are reconfiguring the device | |
2363 | * anyway. | |
2364 | * Note that restart_work is scheduled on a frozen workqueue, | |
2365 | * so we can't deadlock in this case. | |
2366 | */ | |
2367 | if (suspended && local->in_reconfig && !reconfig_due_to_wowlan) | |
2368 | cancel_work_sync(&local->restart_work); | |
2369 | ||
968a76ce EP |
2370 | local->started = false; |
2371 | ||
94f9b97b JB |
2372 | /* |
2373 | * Upon resume hardware can sometimes be goofy due to | |
2374 | * various platform / driver / bus issues, so restarting | |
2375 | * the device may at times not work immediately. Propagate | |
2376 | * the error. | |
2377 | */ | |
2378 | res = drv_start(local); | |
2379 | if (res) { | |
b0485e9f | 2380 | if (suspended) |
f6837ba8 JB |
2381 | WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n"); |
2382 | else | |
2383 | WARN(1, "Hardware became unavailable during restart.\n"); | |
2384 | ieee80211_handle_reconfig_failure(local); | |
94f9b97b | 2385 | return res; |
f2753ddb JB |
2386 | } |
2387 | ||
7f281975 YAP |
2388 | /* setup fragmentation threshold */ |
2389 | drv_set_frag_threshold(local, hw->wiphy->frag_threshold); | |
2390 | ||
2391 | /* setup RTS threshold */ | |
2392 | drv_set_rts_threshold(local, hw->wiphy->rts_threshold); | |
2393 | ||
2394 | /* reset coverage class */ | |
2395 | drv_set_coverage_class(local, hw->wiphy->coverage_class); | |
2396 | ||
94f9b97b JB |
2397 | ieee80211_led_radio(local, true); |
2398 | ieee80211_mod_tpt_led_trig(local, | |
2399 | IEEE80211_TPT_LEDTRIG_FL_RADIO, 0); | |
2400 | ||
f2753ddb | 2401 | /* add interfaces */ |
6dd23603 | 2402 | sdata = wiphy_dereference(local->hw.wiphy, local->monitor_sdata); |
4b6f1dd6 | 2403 | if (sdata) { |
3c3e21e7 JB |
2404 | /* in HW restart it exists already */ |
2405 | WARN_ON(local->resuming); | |
4b6f1dd6 JB |
2406 | res = drv_add_interface(local, sdata); |
2407 | if (WARN_ON(res)) { | |
0c2bef46 | 2408 | RCU_INIT_POINTER(local->monitor_sdata, NULL); |
4b6f1dd6 JB |
2409 | synchronize_net(); |
2410 | kfree(sdata); | |
2411 | } | |
2412 | } | |
2413 | ||
f2753ddb JB |
2414 | list_for_each_entry(sdata, &local->interfaces, list) { |
2415 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && | |
2416 | sdata->vif.type != NL80211_IFTYPE_MONITOR && | |
c8fff3dc | 2417 | ieee80211_sdata_running(sdata)) { |
7b7eab6f | 2418 | res = drv_add_interface(local, sdata); |
c8fff3dc LC |
2419 | if (WARN_ON(res)) |
2420 | break; | |
2421 | } | |
2422 | } | |
2423 | ||
2424 | /* If adding any of the interfaces failed above, roll back and | |
2425 | * report failure. | |
2426 | */ | |
2427 | if (res) { | |
2428 | list_for_each_entry_continue_reverse(sdata, &local->interfaces, | |
2429 | list) | |
2430 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && | |
2431 | sdata->vif.type != NL80211_IFTYPE_MONITOR && | |
2432 | ieee80211_sdata_running(sdata)) | |
2433 | drv_remove_interface(local, sdata); | |
2434 | ieee80211_handle_reconfig_failure(local); | |
2435 | return res; | |
f2753ddb JB |
2436 | } |
2437 | ||
55de908a | 2438 | /* add channel contexts */ |
f0dea9c7 AS |
2439 | if (local->use_chanctx) { |
2440 | mutex_lock(&local->chanctx_mtx); | |
2441 | list_for_each_entry(ctx, &local->chanctx_list, list) | |
5bcae31d MK |
2442 | if (ctx->replace_state != |
2443 | IEEE80211_CHANCTX_REPLACES_OTHER) | |
2444 | WARN_ON(drv_add_chanctx(local, ctx)); | |
f0dea9c7 | 2445 | mutex_unlock(&local->chanctx_mtx); |
55de908a | 2446 | |
6dd23603 JB |
2447 | sdata = wiphy_dereference(local->hw.wiphy, |
2448 | local->monitor_sdata); | |
7df180f7 ZG |
2449 | if (sdata && ieee80211_sdata_running(sdata)) |
2450 | ieee80211_assign_chanctx(local, sdata); | |
2451 | } | |
fe5f2559 | 2452 | |
f2753ddb JB |
2453 | /* reconfigure hardware */ |
2454 | ieee80211_hw_config(local, ~0); | |
2455 | ||
f2753ddb | 2456 | ieee80211_configure_filter(local); |
f2753ddb JB |
2457 | |
2458 | /* Finally also reconfigure all the BSS information */ | |
2459 | list_for_each_entry(sdata, &local->interfaces, list) { | |
ac8dd506 JB |
2460 | u32 changed; |
2461 | ||
9607e6b6 | 2462 | if (!ieee80211_sdata_running(sdata)) |
f2753ddb | 2463 | continue; |
ac8dd506 | 2464 | |
1ea2c864 JB |
2465 | ieee80211_assign_chanctx(local, sdata); |
2466 | ||
2467 | switch (sdata->vif.type) { | |
2468 | case NL80211_IFTYPE_AP_VLAN: | |
2469 | case NL80211_IFTYPE_MONITOR: | |
2470 | break; | |
4926b51b JB |
2471 | case NL80211_IFTYPE_ADHOC: |
2472 | if (sdata->vif.bss_conf.ibss_joined) | |
2473 | WARN_ON(drv_join_ibss(local, sdata)); | |
fc0561dc | 2474 | fallthrough; |
1ea2c864 JB |
2475 | default: |
2476 | ieee80211_reconfig_stations(sdata); | |
fc0561dc | 2477 | fallthrough; |
1ea2c864 JB |
2478 | case NL80211_IFTYPE_AP: /* AP stations are handled later */ |
2479 | for (i = 0; i < IEEE80211_NUM_ACS; i++) | |
2480 | drv_conf_tx(local, sdata, i, | |
2481 | &sdata->tx_conf[i]); | |
2482 | break; | |
2483 | } | |
2484 | ||
ac8dd506 JB |
2485 | /* common change flags for all interface types */ |
2486 | changed = BSS_CHANGED_ERP_CTS_PROT | | |
2487 | BSS_CHANGED_ERP_PREAMBLE | | |
2488 | BSS_CHANGED_ERP_SLOT | | |
2489 | BSS_CHANGED_HT | | |
2490 | BSS_CHANGED_BASIC_RATES | | |
2491 | BSS_CHANGED_BEACON_INT | | |
2492 | BSS_CHANGED_BSSID | | |
4ced3f74 | 2493 | BSS_CHANGED_CQM | |
55de47f6 | 2494 | BSS_CHANGED_QOS | |
1ea6f9c0 | 2495 | BSS_CHANGED_IDLE | |
dcbe73ca PKC |
2496 | BSS_CHANGED_TXPOWER | |
2497 | BSS_CHANGED_MCAST_RATE; | |
ac8dd506 | 2498 | |
b5a33d52 | 2499 | if (sdata->vif.mu_mimo_owner) |
23a1f8d4 SS |
2500 | changed |= BSS_CHANGED_MU_GROUPS; |
2501 | ||
f2753ddb JB |
2502 | switch (sdata->vif.type) { |
2503 | case NL80211_IFTYPE_STATION: | |
0d392e93 | 2504 | changed |= BSS_CHANGED_ASSOC | |
ab095877 EP |
2505 | BSS_CHANGED_ARP_FILTER | |
2506 | BSS_CHANGED_PS; | |
c65dd147 | 2507 | |
989c6505 AB |
2508 | /* Re-send beacon info report to the driver */ |
2509 | if (sdata->u.mgd.have_beacon) | |
2510 | changed |= BSS_CHANGED_BEACON_INFO; | |
c65dd147 | 2511 | |
e38a017b AS |
2512 | if (sdata->vif.bss_conf.max_idle_period || |
2513 | sdata->vif.bss_conf.protected_keep_alive) | |
2514 | changed |= BSS_CHANGED_KEEP_ALIVE; | |
2515 | ||
8d61ffa5 | 2516 | sdata_lock(sdata); |
ac8dd506 | 2517 | ieee80211_bss_info_change_notify(sdata, changed); |
8d61ffa5 | 2518 | sdata_unlock(sdata); |
ac8dd506 | 2519 | break; |
6e0bd6c3 | 2520 | case NL80211_IFTYPE_OCB: |
239281f8 RL |
2521 | changed |= BSS_CHANGED_OCB; |
2522 | ieee80211_bss_info_change_notify(sdata, changed); | |
6e0bd6c3 | 2523 | break; |
f2753ddb | 2524 | case NL80211_IFTYPE_ADHOC: |
ac8dd506 | 2525 | changed |= BSS_CHANGED_IBSS; |
fc0561dc | 2526 | fallthrough; |
f2753ddb | 2527 | case NL80211_IFTYPE_AP: |
339afbf4 | 2528 | changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS; |
e7979ac7 | 2529 | |
bc847970 PKC |
2530 | if (sdata->vif.bss_conf.ftm_responder == 1 && |
2531 | wiphy_ext_feature_isset(sdata->local->hw.wiphy, | |
2532 | NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER)) | |
2533 | changed |= BSS_CHANGED_FTM_RESPONDER; | |
2534 | ||
1041638f | 2535 | if (sdata->vif.type == NL80211_IFTYPE_AP) { |
e7979ac7 AN |
2536 | changed |= BSS_CHANGED_AP_PROBE_RESP; |
2537 | ||
1041638f JB |
2538 | if (rcu_access_pointer(sdata->u.ap.beacon)) |
2539 | drv_start_ap(local, sdata); | |
2540 | } | |
fc0561dc | 2541 | fallthrough; |
f2753ddb | 2542 | case NL80211_IFTYPE_MESH_POINT: |
8da34932 JB |
2543 | if (sdata->vif.bss_conf.enable_beacon) { |
2544 | changed |= BSS_CHANGED_BEACON | | |
2545 | BSS_CHANGED_BEACON_ENABLED; | |
2546 | ieee80211_bss_info_change_notify(sdata, changed); | |
2547 | } | |
f2753ddb | 2548 | break; |
167e33f4 AB |
2549 | case NL80211_IFTYPE_NAN: |
2550 | res = ieee80211_reconfig_nan(sdata); | |
2551 | if (res < 0) { | |
2552 | ieee80211_handle_reconfig_failure(local); | |
2553 | return res; | |
2554 | } | |
2555 | break; | |
f2753ddb JB |
2556 | case NL80211_IFTYPE_AP_VLAN: |
2557 | case NL80211_IFTYPE_MONITOR: | |
98104fde | 2558 | case NL80211_IFTYPE_P2P_DEVICE: |
b205786e | 2559 | /* nothing to do */ |
f142c6b9 | 2560 | break; |
f2753ddb | 2561 | case NL80211_IFTYPE_UNSPECIFIED: |
2e161f78 | 2562 | case NUM_NL80211_IFTYPES: |
2ca27bcf JB |
2563 | case NL80211_IFTYPE_P2P_CLIENT: |
2564 | case NL80211_IFTYPE_P2P_GO: | |
70d9c599 | 2565 | case NL80211_IFTYPE_WDS: |
f2753ddb JB |
2566 | WARN_ON(1); |
2567 | break; | |
2568 | } | |
2569 | } | |
2570 | ||
4a733ef1 | 2571 | ieee80211_recalc_ps(local); |
8e1b23b9 | 2572 | |
6e1b1b24 EP |
2573 | /* |
2574 | * The sta might be in psm against the ap (e.g. because | |
2575 | * this was the state before a hw restart), so we | |
2576 | * explicitly send a null packet in order to make sure | |
2577 | * it'll sync against the ap (and get out of psm). | |
2578 | */ | |
2579 | if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) { | |
2580 | list_for_each_entry(sdata, &local->interfaces, list) { | |
2581 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
2582 | continue; | |
20f544ee JB |
2583 | if (!sdata->u.mgd.associated) |
2584 | continue; | |
6e1b1b24 | 2585 | |
076cdcb1 | 2586 | ieee80211_send_nullfunc(local, sdata, false); |
6e1b1b24 EP |
2587 | } |
2588 | } | |
2589 | ||
2e8d397e AN |
2590 | /* APs are now beaconing, add back stations */ |
2591 | mutex_lock(&local->sta_mtx); | |
2592 | list_for_each_entry(sta, &local->sta_list, list) { | |
2593 | enum ieee80211_sta_state state; | |
2594 | ||
2595 | if (!sta->uploaded) | |
2596 | continue; | |
2597 | ||
19103a4b | 2598 | if (sta->sdata->vif.type != NL80211_IFTYPE_AP && |
2599 | sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN) | |
2e8d397e AN |
2600 | continue; |
2601 | ||
2602 | for (state = IEEE80211_STA_NOTEXIST; | |
2603 | state < sta->sta_state; state++) | |
2604 | WARN_ON(drv_sta_state(local, sta->sdata, sta, state, | |
2605 | state + 1)); | |
2606 | } | |
2607 | mutex_unlock(&local->sta_mtx); | |
2608 | ||
7b21aea0 | 2609 | /* add back keys */ |
f9dca80b | 2610 | list_for_each_entry(sdata, &local->interfaces, list) |
624ff4b2 | 2611 | ieee80211_reenable_keys(sdata); |
7b21aea0 | 2612 | |
0d440ea2 EP |
2613 | /* Reconfigure sched scan if it was interrupted by FW restart */ |
2614 | mutex_lock(&local->mtx); | |
2615 | sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, | |
2616 | lockdep_is_held(&local->mtx)); | |
2617 | sched_scan_req = rcu_dereference_protected(local->sched_scan_req, | |
2618 | lockdep_is_held(&local->mtx)); | |
2619 | if (sched_scan_sdata && sched_scan_req) | |
2620 | /* | |
2621 | * Sched scan stopped, but we don't want to report it. Instead, | |
2622 | * we're trying to reschedule. However, if more than one scan | |
2623 | * plan was set, we cannot reschedule since we don't know which | |
2624 | * scan plan was currently running (and some scan plans may have | |
2625 | * already finished). | |
2626 | */ | |
2627 | if (sched_scan_req->n_scan_plans > 1 || | |
2628 | __ieee80211_request_sched_scan_start(sched_scan_sdata, | |
b9f628fc EP |
2629 | sched_scan_req)) { |
2630 | RCU_INIT_POINTER(local->sched_scan_sdata, NULL); | |
2631 | RCU_INIT_POINTER(local->sched_scan_req, NULL); | |
0d440ea2 | 2632 | sched_scan_stopped = true; |
b9f628fc | 2633 | } |
0d440ea2 EP |
2634 | mutex_unlock(&local->mtx); |
2635 | ||
2636 | if (sched_scan_stopped) | |
a05829a7 | 2637 | cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0); |
0d440ea2 | 2638 | |
c6209488 | 2639 | wake_up: |
04800ada | 2640 | |
3c3e21e7 JB |
2641 | if (local->monitors == local->open_count && local->monitors > 0) |
2642 | ieee80211_add_virtual_monitor(local); | |
2643 | ||
2a419056 JB |
2644 | /* |
2645 | * Clear the WLAN_STA_BLOCK_BA flag so new aggregation | |
2646 | * sessions can be established after a resume. | |
2647 | * | |
2648 | * Also tear down aggregation sessions since reconfiguring | |
2649 | * them in a hardware restart scenario is not easily done | |
2650 | * right now, and the hardware will have lost information | |
2651 | * about the sessions, but we and the AP still think they | |
2652 | * are active. This is really a workaround though. | |
2653 | */ | |
30686bf7 | 2654 | if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { |
2a419056 JB |
2655 | mutex_lock(&local->sta_mtx); |
2656 | ||
2657 | list_for_each_entry(sta, &local->sta_list, list) { | |
27392719 EP |
2658 | if (!local->resuming) |
2659 | ieee80211_sta_tear_down_BA_sessions( | |
2660 | sta, AGG_STOP_LOCAL_REQUEST); | |
c2c98fde | 2661 | clear_sta_flag(sta, WLAN_STA_BLOCK_BA); |
74e2bd1f | 2662 | } |
2a419056 JB |
2663 | |
2664 | mutex_unlock(&local->sta_mtx); | |
74e2bd1f | 2665 | } |
74e2bd1f | 2666 | |
13dee10b JB |
2667 | /* |
2668 | * If this is for hw restart things are still running. | |
2669 | * We may want to change that later, however. | |
2670 | */ | |
2671 | if (local->open_count && (!suspended || reconfig_due_to_wowlan)) | |
2672 | drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART); | |
2673 | ||
2316380f SS |
2674 | if (local->in_reconfig) { |
2675 | local->in_reconfig = false; | |
2676 | barrier(); | |
2677 | ||
2678 | /* Restart deferred ROCs */ | |
2679 | mutex_lock(&local->mtx); | |
2680 | ieee80211_start_next_roc(local); | |
2681 | mutex_unlock(&local->mtx); | |
f8891461 NG |
2682 | |
2683 | /* Requeue all works */ | |
2684 | list_for_each_entry(sdata, &local->interfaces, list) | |
2685 | ieee80211_queue_work(&local->hw, &sdata->work); | |
2316380f SS |
2686 | } |
2687 | ||
445ea4e8 | 2688 | ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
2689 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
2690 | false); | |
f2753ddb | 2691 | |
b0485e9f | 2692 | if (!suspended) |
5bb644a0 JB |
2693 | return 0; |
2694 | ||
2695 | #ifdef CONFIG_PM | |
ceb99fe0 | 2696 | /* first set suspended false, then resuming */ |
5bb644a0 | 2697 | local->suspended = false; |
ceb99fe0 JB |
2698 | mb(); |
2699 | local->resuming = false; | |
5bb644a0 | 2700 | |
74430f94 | 2701 | ieee80211_flush_completed_scan(local, false); |
9120d94e | 2702 | |
0f8b8245 | 2703 | if (local->open_count && !reconfig_due_to_wowlan) |
cf2c92d8 EP |
2704 | drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND); |
2705 | ||
b8360ab8 JB |
2706 | list_for_each_entry(sdata, &local->interfaces, list) { |
2707 | if (!ieee80211_sdata_running(sdata)) | |
2708 | continue; | |
2709 | if (sdata->vif.type == NL80211_IFTYPE_STATION) | |
2710 | ieee80211_sta_restart(sdata); | |
2711 | } | |
2712 | ||
26d59535 | 2713 | mod_timer(&local->sta_cleanup, jiffies + 1); |
5bb644a0 JB |
2714 | #else |
2715 | WARN_ON(1); | |
2716 | #endif | |
d43c6b6e | 2717 | |
f2753ddb JB |
2718 | return 0; |
2719 | } | |
42935eca | 2720 | |
95acac61 JB |
2721 | void ieee80211_resume_disconnect(struct ieee80211_vif *vif) |
2722 | { | |
2723 | struct ieee80211_sub_if_data *sdata; | |
2724 | struct ieee80211_local *local; | |
2725 | struct ieee80211_key *key; | |
2726 | ||
2727 | if (WARN_ON(!vif)) | |
2728 | return; | |
2729 | ||
2730 | sdata = vif_to_sdata(vif); | |
2731 | local = sdata->local; | |
2732 | ||
2733 | if (WARN_ON(!local->resuming)) | |
2734 | return; | |
2735 | ||
2736 | if (WARN_ON(vif->type != NL80211_IFTYPE_STATION)) | |
2737 | return; | |
2738 | ||
2739 | sdata->flags |= IEEE80211_SDATA_DISCONNECT_RESUME; | |
2740 | ||
2741 | mutex_lock(&local->key_mtx); | |
2742 | list_for_each_entry(key, &sdata->key_list, list) | |
2743 | key->flags |= KEY_FLAG_TAINTED; | |
2744 | mutex_unlock(&local->key_mtx); | |
2745 | } | |
2746 | EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect); | |
2747 | ||
04ecd257 | 2748 | void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata) |
0f78231b | 2749 | { |
04ecd257 JB |
2750 | struct ieee80211_local *local = sdata->local; |
2751 | struct ieee80211_chanctx_conf *chanctx_conf; | |
2752 | struct ieee80211_chanctx *chanctx; | |
025e6be2 | 2753 | |
04ecd257 | 2754 | mutex_lock(&local->chanctx_mtx); |
0f78231b | 2755 | |
04ecd257 JB |
2756 | chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, |
2757 | lockdep_is_held(&local->chanctx_mtx)); | |
0f78231b | 2758 | |
c189a685 AO |
2759 | /* |
2760 | * This function can be called from a work, thus it may be possible | |
2761 | * that the chanctx_conf is removed (due to a disconnection, for | |
2762 | * example). | |
2763 | * So nothing should be done in such case. | |
2764 | */ | |
2765 | if (!chanctx_conf) | |
5d8e4237 | 2766 | goto unlock; |
0f78231b | 2767 | |
04ecd257 JB |
2768 | chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); |
2769 | ieee80211_recalc_smps_chanctx(local, chanctx); | |
5d8e4237 | 2770 | unlock: |
04ecd257 | 2771 | mutex_unlock(&local->chanctx_mtx); |
0f78231b | 2772 | } |
8e664fb3 | 2773 | |
21f659bf EP |
2774 | void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata) |
2775 | { | |
2776 | struct ieee80211_local *local = sdata->local; | |
2777 | struct ieee80211_chanctx_conf *chanctx_conf; | |
2778 | struct ieee80211_chanctx *chanctx; | |
2779 | ||
2780 | mutex_lock(&local->chanctx_mtx); | |
2781 | ||
2782 | chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, | |
2783 | lockdep_is_held(&local->chanctx_mtx)); | |
2784 | ||
2785 | if (WARN_ON_ONCE(!chanctx_conf)) | |
2786 | goto unlock; | |
2787 | ||
2788 | chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); | |
2789 | ieee80211_recalc_chanctx_min_def(local, chanctx); | |
2790 | unlock: | |
2791 | mutex_unlock(&local->chanctx_mtx); | |
2792 | } | |
2793 | ||
8e664fb3 JB |
2794 | size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset) |
2795 | { | |
2796 | size_t pos = offset; | |
2797 | ||
2798 | while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC) | |
2799 | pos += 2 + ies[pos + 1]; | |
2800 | ||
2801 | return pos; | |
2802 | } | |
615f7b9b MV |
2803 | |
2804 | static void _ieee80211_enable_rssi_reports(struct ieee80211_sub_if_data *sdata, | |
2805 | int rssi_min_thold, | |
2806 | int rssi_max_thold) | |
2807 | { | |
2808 | trace_api_enable_rssi_reports(sdata, rssi_min_thold, rssi_max_thold); | |
2809 | ||
2810 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
2811 | return; | |
2812 | ||
2813 | /* | |
2814 | * Scale up threshold values before storing it, as the RSSI averaging | |
2815 | * algorithm uses a scaled up value as well. Change this scaling | |
2816 | * factor if the RSSI averaging algorithm changes. | |
2817 | */ | |
2818 | sdata->u.mgd.rssi_min_thold = rssi_min_thold*16; | |
2819 | sdata->u.mgd.rssi_max_thold = rssi_max_thold*16; | |
2820 | } | |
2821 | ||
2822 | void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, | |
2823 | int rssi_min_thold, | |
2824 | int rssi_max_thold) | |
2825 | { | |
2826 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
2827 | ||
2828 | WARN_ON(rssi_min_thold == rssi_max_thold || | |
2829 | rssi_min_thold > rssi_max_thold); | |
2830 | ||
2831 | _ieee80211_enable_rssi_reports(sdata, rssi_min_thold, | |
2832 | rssi_max_thold); | |
2833 | } | |
2834 | EXPORT_SYMBOL(ieee80211_enable_rssi_reports); | |
2835 | ||
2836 | void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) | |
2837 | { | |
2838 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
2839 | ||
2840 | _ieee80211_enable_rssi_reports(sdata, 0, 0); | |
2841 | } | |
2842 | EXPORT_SYMBOL(ieee80211_disable_rssi_reports); | |
768db343 | 2843 | |
ef96a842 | 2844 | u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, |
42e7aa77 AS |
2845 | u16 cap) |
2846 | { | |
2847 | __le16 tmp; | |
2848 | ||
2849 | *pos++ = WLAN_EID_HT_CAPABILITY; | |
2850 | *pos++ = sizeof(struct ieee80211_ht_cap); | |
2851 | memset(pos, 0, sizeof(struct ieee80211_ht_cap)); | |
2852 | ||
2853 | /* capability flags */ | |
2854 | tmp = cpu_to_le16(cap); | |
2855 | memcpy(pos, &tmp, sizeof(u16)); | |
2856 | pos += sizeof(u16); | |
2857 | ||
2858 | /* AMPDU parameters */ | |
ef96a842 BG |
2859 | *pos++ = ht_cap->ampdu_factor | |
2860 | (ht_cap->ampdu_density << | |
42e7aa77 AS |
2861 | IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT); |
2862 | ||
2863 | /* MCS set */ | |
ef96a842 BG |
2864 | memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs)); |
2865 | pos += sizeof(ht_cap->mcs); | |
42e7aa77 AS |
2866 | |
2867 | /* extended capabilities */ | |
2868 | pos += sizeof(__le16); | |
2869 | ||
2870 | /* BF capabilities */ | |
2871 | pos += sizeof(__le32); | |
2872 | ||
2873 | /* antenna selection */ | |
2874 | pos += sizeof(u8); | |
2875 | ||
2876 | return pos; | |
2877 | } | |
2878 | ||
ba0afa2f | 2879 | u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, |
cc3983d8 | 2880 | u32 cap) |
ba0afa2f MP |
2881 | { |
2882 | __le32 tmp; | |
2883 | ||
2884 | *pos++ = WLAN_EID_VHT_CAPABILITY; | |
d4950281 MP |
2885 | *pos++ = sizeof(struct ieee80211_vht_cap); |
2886 | memset(pos, 0, sizeof(struct ieee80211_vht_cap)); | |
ba0afa2f MP |
2887 | |
2888 | /* capability flags */ | |
2889 | tmp = cpu_to_le32(cap); | |
2890 | memcpy(pos, &tmp, sizeof(u32)); | |
2891 | pos += sizeof(u32); | |
2892 | ||
2893 | /* VHT MCS set */ | |
2894 | memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs)); | |
2895 | pos += sizeof(vht_cap->vht_mcs); | |
2896 | ||
2897 | return pos; | |
2898 | } | |
2899 | ||
60ad72da SE |
2900 | u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) |
2901 | { | |
2902 | const struct ieee80211_sta_he_cap *he_cap; | |
2903 | struct ieee80211_supported_band *sband; | |
2904 | u8 n; | |
2905 | ||
2906 | sband = ieee80211_get_sband(sdata); | |
2907 | if (!sband) | |
2908 | return 0; | |
2909 | ||
2910 | he_cap = ieee80211_get_he_iftype_cap(sband, iftype); | |
2911 | if (!he_cap) | |
2912 | return 0; | |
2913 | ||
2914 | n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); | |
2915 | return 2 + 1 + | |
2916 | sizeof(he_cap->he_cap_elem) + n + | |
2917 | ieee80211_he_ppe_size(he_cap->ppe_thres[0], | |
2918 | he_cap->he_cap_elem.phy_cap_info); | |
2919 | } | |
2920 | ||
1f2c1044 | 2921 | u8 *ieee80211_ie_build_he_cap(u32 disable_flags, u8 *pos, |
41cbb0f5 LC |
2922 | const struct ieee80211_sta_he_cap *he_cap, |
2923 | u8 *end) | |
2924 | { | |
1f2c1044 | 2925 | struct ieee80211_he_cap_elem elem; |
41cbb0f5 LC |
2926 | u8 n; |
2927 | u8 ie_len; | |
2928 | u8 *orig_pos = pos; | |
2929 | ||
2930 | /* Make sure we have place for the IE */ | |
2931 | /* | |
2932 | * TODO: the 1 added is because this temporarily is under the EXTENSION | |
2933 | * IE. Get rid of it when it moves. | |
2934 | */ | |
2935 | if (!he_cap) | |
2936 | return orig_pos; | |
2937 | ||
1f2c1044 JB |
2938 | /* modify on stack first to calculate 'n' and 'ie_len' correctly */ |
2939 | elem = he_cap->he_cap_elem; | |
2940 | ||
2941 | if (disable_flags & IEEE80211_STA_DISABLE_40MHZ) | |
2942 | elem.phy_cap_info[0] &= | |
2943 | ~(IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G | | |
2944 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G); | |
2945 | ||
2946 | if (disable_flags & IEEE80211_STA_DISABLE_160MHZ) | |
2947 | elem.phy_cap_info[0] &= | |
2948 | ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; | |
2949 | ||
2950 | if (disable_flags & IEEE80211_STA_DISABLE_80P80MHZ) | |
2951 | elem.phy_cap_info[0] &= | |
2952 | ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; | |
2953 | ||
2954 | n = ieee80211_he_mcs_nss_size(&elem); | |
41cbb0f5 LC |
2955 | ie_len = 2 + 1 + |
2956 | sizeof(he_cap->he_cap_elem) + n + | |
2957 | ieee80211_he_ppe_size(he_cap->ppe_thres[0], | |
2958 | he_cap->he_cap_elem.phy_cap_info); | |
2959 | ||
2960 | if ((end - pos) < ie_len) | |
2961 | return orig_pos; | |
2962 | ||
2963 | *pos++ = WLAN_EID_EXTENSION; | |
2964 | pos++; /* We'll set the size later below */ | |
2965 | *pos++ = WLAN_EID_EXT_HE_CAPABILITY; | |
2966 | ||
2967 | /* Fixed data */ | |
1f2c1044 JB |
2968 | memcpy(pos, &elem, sizeof(elem)); |
2969 | pos += sizeof(elem); | |
41cbb0f5 LC |
2970 | |
2971 | memcpy(pos, &he_cap->he_mcs_nss_supp, n); | |
2972 | pos += n; | |
2973 | ||
2974 | /* Check if PPE Threshold should be present */ | |
2975 | if ((he_cap->he_cap_elem.phy_cap_info[6] & | |
2976 | IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0) | |
2977 | goto end; | |
2978 | ||
2979 | /* | |
2980 | * Calculate how many PPET16/PPET8 pairs are to come. Algorithm: | |
2981 | * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK) | |
2982 | */ | |
2983 | n = hweight8(he_cap->ppe_thres[0] & | |
2984 | IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); | |
2985 | n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >> | |
2986 | IEEE80211_PPE_THRES_NSS_POS)); | |
2987 | ||
2988 | /* | |
2989 | * Each pair is 6 bits, and we need to add the 7 "header" bits to the | |
2990 | * total size. | |
2991 | */ | |
2992 | n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7; | |
2993 | n = DIV_ROUND_UP(n, 8); | |
2994 | ||
2995 | /* Copy PPE Thresholds */ | |
2996 | memcpy(pos, &he_cap->ppe_thres, n); | |
2997 | pos += n; | |
2998 | ||
2999 | end: | |
3000 | orig_pos[1] = (pos - orig_pos) - 2; | |
3001 | return pos; | |
3002 | } | |
3003 | ||
24a2042c RM |
3004 | void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata, |
3005 | struct sk_buff *skb) | |
3006 | { | |
3007 | struct ieee80211_supported_band *sband; | |
3008 | const struct ieee80211_sband_iftype_data *iftd; | |
3009 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); | |
3010 | u8 *pos; | |
3011 | u16 cap; | |
3012 | ||
65be6aa3 JB |
3013 | if (!cfg80211_any_usable_channels(sdata->local->hw.wiphy, |
3014 | BIT(NL80211_BAND_6GHZ), | |
3015 | IEEE80211_CHAN_NO_HE)) | |
24a2042c RM |
3016 | return; |
3017 | ||
65be6aa3 JB |
3018 | sband = sdata->local->hw.wiphy->bands[NL80211_BAND_6GHZ]; |
3019 | ||
24a2042c | 3020 | iftd = ieee80211_get_sband_iftype_data(sband, iftype); |
65be6aa3 | 3021 | if (!iftd) |
24a2042c RM |
3022 | return; |
3023 | ||
65ad3ef9 RM |
3024 | /* Check for device HE 6 GHz capability before adding element */ |
3025 | if (!iftd->he_6ghz_capa.capa) | |
3026 | return; | |
3027 | ||
24a2042c RM |
3028 | cap = le16_to_cpu(iftd->he_6ghz_capa.capa); |
3029 | cap &= ~IEEE80211_HE_6GHZ_CAP_SM_PS; | |
3030 | ||
3031 | switch (sdata->smps_mode) { | |
3032 | case IEEE80211_SMPS_AUTOMATIC: | |
3033 | case IEEE80211_SMPS_NUM_MODES: | |
3034 | WARN_ON(1); | |
fc0561dc | 3035 | fallthrough; |
24a2042c RM |
3036 | case IEEE80211_SMPS_OFF: |
3037 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DISABLED, | |
3038 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
3039 | break; | |
3040 | case IEEE80211_SMPS_STATIC: | |
3041 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_STATIC, | |
3042 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
3043 | break; | |
3044 | case IEEE80211_SMPS_DYNAMIC: | |
3045 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DYNAMIC, | |
3046 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
3047 | break; | |
3048 | } | |
3049 | ||
3050 | pos = skb_put(skb, 2 + 1 + sizeof(cap)); | |
2ad2274c IP |
3051 | ieee80211_write_he_6ghz_cap(pos, cpu_to_le16(cap), |
3052 | pos + 2 + 1 + sizeof(cap)); | |
24a2042c RM |
3053 | } |
3054 | ||
074d46d1 | 3055 | u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, |
4bf88530 | 3056 | const struct cfg80211_chan_def *chandef, |
57f255f5 | 3057 | u16 prot_mode, bool rifs_mode) |
42e7aa77 | 3058 | { |
074d46d1 | 3059 | struct ieee80211_ht_operation *ht_oper; |
42e7aa77 | 3060 | /* Build HT Information */ |
074d46d1 JB |
3061 | *pos++ = WLAN_EID_HT_OPERATION; |
3062 | *pos++ = sizeof(struct ieee80211_ht_operation); | |
3063 | ht_oper = (struct ieee80211_ht_operation *)pos; | |
4bf88530 JB |
3064 | ht_oper->primary_chan = ieee80211_frequency_to_channel( |
3065 | chandef->chan->center_freq); | |
3066 | switch (chandef->width) { | |
3067 | case NL80211_CHAN_WIDTH_160: | |
3068 | case NL80211_CHAN_WIDTH_80P80: | |
3069 | case NL80211_CHAN_WIDTH_80: | |
3070 | case NL80211_CHAN_WIDTH_40: | |
3071 | if (chandef->center_freq1 > chandef->chan->center_freq) | |
3072 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
3073 | else | |
3074 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
42e7aa77 | 3075 | break; |
42e7aa77 | 3076 | default: |
074d46d1 | 3077 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE; |
42e7aa77 AS |
3078 | break; |
3079 | } | |
aee286c2 | 3080 | if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && |
4bf88530 JB |
3081 | chandef->width != NL80211_CHAN_WIDTH_20_NOHT && |
3082 | chandef->width != NL80211_CHAN_WIDTH_20) | |
074d46d1 | 3083 | ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; |
ff3cc5f4 | 3084 | |
57f255f5 AN |
3085 | if (rifs_mode) |
3086 | ht_oper->ht_param |= IEEE80211_HT_PARAM_RIFS_MODE; | |
3087 | ||
431e3154 | 3088 | ht_oper->operation_mode = cpu_to_le16(prot_mode); |
074d46d1 | 3089 | ht_oper->stbc_param = 0x0000; |
42e7aa77 AS |
3090 | |
3091 | /* It seems that Basic MCS set and Supported MCS set | |
3092 | are identical for the first 10 bytes */ | |
074d46d1 JB |
3093 | memset(&ht_oper->basic_set, 0, 16); |
3094 | memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10); | |
42e7aa77 | 3095 | |
074d46d1 | 3096 | return pos + sizeof(struct ieee80211_ht_operation); |
42e7aa77 AS |
3097 | } |
3098 | ||
75d627d5 SW |
3099 | void ieee80211_ie_build_wide_bw_cs(u8 *pos, |
3100 | const struct cfg80211_chan_def *chandef) | |
3101 | { | |
3102 | *pos++ = WLAN_EID_WIDE_BW_CHANNEL_SWITCH; /* EID */ | |
3103 | *pos++ = 3; /* IE length */ | |
3104 | /* New channel width */ | |
3105 | switch (chandef->width) { | |
3106 | case NL80211_CHAN_WIDTH_80: | |
3107 | *pos++ = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
3108 | break; | |
3109 | case NL80211_CHAN_WIDTH_160: | |
3110 | *pos++ = IEEE80211_VHT_CHANWIDTH_160MHZ; | |
3111 | break; | |
3112 | case NL80211_CHAN_WIDTH_80P80: | |
3113 | *pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ; | |
3114 | break; | |
3115 | default: | |
3116 | *pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT; | |
3117 | } | |
3118 | ||
3119 | /* new center frequency segment 0 */ | |
3120 | *pos++ = ieee80211_frequency_to_channel(chandef->center_freq1); | |
3121 | /* new center frequency segment 1 */ | |
3122 | if (chandef->center_freq2) | |
3123 | *pos++ = ieee80211_frequency_to_channel(chandef->center_freq2); | |
3124 | else | |
3125 | *pos++ = 0; | |
3126 | } | |
3127 | ||
fb28ec0c AN |
3128 | u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, |
3129 | const struct cfg80211_chan_def *chandef) | |
3130 | { | |
3131 | struct ieee80211_vht_operation *vht_oper; | |
3132 | ||
3133 | *pos++ = WLAN_EID_VHT_OPERATION; | |
3134 | *pos++ = sizeof(struct ieee80211_vht_operation); | |
3135 | vht_oper = (struct ieee80211_vht_operation *)pos; | |
2fb51c35 | 3136 | vht_oper->center_freq_seg0_idx = ieee80211_frequency_to_channel( |
fb28ec0c AN |
3137 | chandef->center_freq1); |
3138 | if (chandef->center_freq2) | |
2fb51c35 | 3139 | vht_oper->center_freq_seg1_idx = |
fb28ec0c | 3140 | ieee80211_frequency_to_channel(chandef->center_freq2); |
f020ae40 | 3141 | else |
2fb51c35 | 3142 | vht_oper->center_freq_seg1_idx = 0x00; |
fb28ec0c AN |
3143 | |
3144 | switch (chandef->width) { | |
3145 | case NL80211_CHAN_WIDTH_160: | |
23665aaf JM |
3146 | /* |
3147 | * Convert 160 MHz channel width to new style as interop | |
3148 | * workaround. | |
3149 | */ | |
3150 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
2fb51c35 | 3151 | vht_oper->center_freq_seg1_idx = vht_oper->center_freq_seg0_idx; |
23665aaf | 3152 | if (chandef->chan->center_freq < chandef->center_freq1) |
2fb51c35 | 3153 | vht_oper->center_freq_seg0_idx -= 8; |
23665aaf | 3154 | else |
2fb51c35 | 3155 | vht_oper->center_freq_seg0_idx += 8; |
fb28ec0c AN |
3156 | break; |
3157 | case NL80211_CHAN_WIDTH_80P80: | |
23665aaf JM |
3158 | /* |
3159 | * Convert 80+80 MHz channel width to new style as interop | |
3160 | * workaround. | |
3161 | */ | |
3162 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
fb28ec0c AN |
3163 | break; |
3164 | case NL80211_CHAN_WIDTH_80: | |
3165 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
3166 | break; | |
3167 | default: | |
3168 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT; | |
3169 | break; | |
3170 | } | |
3171 | ||
3172 | /* don't require special VHT peer rates */ | |
3173 | vht_oper->basic_mcs_set = cpu_to_le16(0xffff); | |
3174 | ||
3175 | return pos + sizeof(struct ieee80211_vht_operation); | |
3176 | } | |
3177 | ||
d1b7524b | 3178 | u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef) |
60ad72da SE |
3179 | { |
3180 | struct ieee80211_he_operation *he_oper; | |
d1b7524b | 3181 | struct ieee80211_he_6ghz_oper *he_6ghz_op; |
60ad72da | 3182 | u32 he_oper_params; |
d1b7524b RM |
3183 | u8 ie_len = 1 + sizeof(struct ieee80211_he_operation); |
3184 | ||
3185 | if (chandef->chan->band == NL80211_BAND_6GHZ) | |
3186 | ie_len += sizeof(struct ieee80211_he_6ghz_oper); | |
60ad72da SE |
3187 | |
3188 | *pos++ = WLAN_EID_EXTENSION; | |
d1b7524b | 3189 | *pos++ = ie_len; |
60ad72da SE |
3190 | *pos++ = WLAN_EID_EXT_HE_OPERATION; |
3191 | ||
3192 | he_oper_params = 0; | |
3193 | he_oper_params |= u32_encode_bits(1023, /* disabled */ | |
3194 | IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); | |
3195 | he_oper_params |= u32_encode_bits(1, | |
3196 | IEEE80211_HE_OPERATION_ER_SU_DISABLE); | |
3197 | he_oper_params |= u32_encode_bits(1, | |
3198 | IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); | |
d1b7524b RM |
3199 | if (chandef->chan->band == NL80211_BAND_6GHZ) |
3200 | he_oper_params |= u32_encode_bits(1, | |
3201 | IEEE80211_HE_OPERATION_6GHZ_OP_INFO); | |
60ad72da SE |
3202 | |
3203 | he_oper = (struct ieee80211_he_operation *)pos; | |
3204 | he_oper->he_oper_params = cpu_to_le32(he_oper_params); | |
3205 | ||
3206 | /* don't require special HE peer rates */ | |
3207 | he_oper->he_mcs_nss_set = cpu_to_le16(0xffff); | |
d1b7524b | 3208 | pos += sizeof(struct ieee80211_he_operation); |
60ad72da | 3209 | |
d1b7524b RM |
3210 | if (chandef->chan->band != NL80211_BAND_6GHZ) |
3211 | goto out; | |
60ad72da | 3212 | |
d1b7524b RM |
3213 | /* TODO add VHT operational */ |
3214 | he_6ghz_op = (struct ieee80211_he_6ghz_oper *)pos; | |
3215 | he_6ghz_op->minrate = 6; /* 6 Mbps */ | |
3216 | he_6ghz_op->primary = | |
3217 | ieee80211_frequency_to_channel(chandef->chan->center_freq); | |
3218 | he_6ghz_op->ccfs0 = | |
3219 | ieee80211_frequency_to_channel(chandef->center_freq1); | |
3220 | if (chandef->center_freq2) | |
3221 | he_6ghz_op->ccfs1 = | |
3222 | ieee80211_frequency_to_channel(chandef->center_freq2); | |
3223 | else | |
3224 | he_6ghz_op->ccfs1 = 0; | |
3225 | ||
3226 | switch (chandef->width) { | |
3227 | case NL80211_CHAN_WIDTH_160: | |
3228 | /* Convert 160 MHz channel width to new style as interop | |
3229 | * workaround. | |
3230 | */ | |
3231 | he_6ghz_op->control = | |
3232 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; | |
3233 | he_6ghz_op->ccfs1 = he_6ghz_op->ccfs0; | |
3234 | if (chandef->chan->center_freq < chandef->center_freq1) | |
3235 | he_6ghz_op->ccfs0 -= 8; | |
3236 | else | |
3237 | he_6ghz_op->ccfs0 += 8; | |
3238 | fallthrough; | |
3239 | case NL80211_CHAN_WIDTH_80P80: | |
3240 | he_6ghz_op->control = | |
3241 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; | |
3242 | break; | |
3243 | case NL80211_CHAN_WIDTH_80: | |
3244 | he_6ghz_op->control = | |
3245 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ; | |
3246 | break; | |
3247 | case NL80211_CHAN_WIDTH_40: | |
3248 | he_6ghz_op->control = | |
3249 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ; | |
3250 | break; | |
3251 | default: | |
3252 | he_6ghz_op->control = | |
3253 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ; | |
3254 | break; | |
3255 | } | |
3256 | ||
3257 | pos += sizeof(struct ieee80211_he_6ghz_oper); | |
3258 | ||
3259 | out: | |
3260 | return pos; | |
60ad72da SE |
3261 | } |
3262 | ||
8ac3c704 JB |
3263 | bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, |
3264 | struct cfg80211_chan_def *chandef) | |
42e7aa77 AS |
3265 | { |
3266 | enum nl80211_channel_type channel_type; | |
3267 | ||
8ac3c704 JB |
3268 | if (!ht_oper) |
3269 | return false; | |
42e7aa77 | 3270 | |
074d46d1 | 3271 | switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { |
42e7aa77 AS |
3272 | case IEEE80211_HT_PARAM_CHA_SEC_NONE: |
3273 | channel_type = NL80211_CHAN_HT20; | |
3274 | break; | |
3275 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: | |
3276 | channel_type = NL80211_CHAN_HT40PLUS; | |
3277 | break; | |
3278 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: | |
3279 | channel_type = NL80211_CHAN_HT40MINUS; | |
3280 | break; | |
3281 | default: | |
8ac3c704 | 3282 | return false; |
42e7aa77 AS |
3283 | } |
3284 | ||
8ac3c704 JB |
3285 | cfg80211_chandef_create(chandef, chandef->chan, channel_type); |
3286 | return true; | |
42e7aa77 AS |
3287 | } |
3288 | ||
2a333a0d | 3289 | bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, |
7eb26df2 JB |
3290 | const struct ieee80211_vht_operation *oper, |
3291 | const struct ieee80211_ht_operation *htop, | |
8ac3c704 | 3292 | struct cfg80211_chan_def *chandef) |
abcff6ef | 3293 | { |
8ac3c704 | 3294 | struct cfg80211_chan_def new = *chandef; |
7eb26df2 JB |
3295 | int cf0, cf1; |
3296 | int ccfs0, ccfs1, ccfs2; | |
3297 | int ccf0, ccf1; | |
33181ea7 SB |
3298 | u32 vht_cap; |
3299 | bool support_80_80 = false; | |
3300 | bool support_160 = false; | |
2a333a0d JB |
3301 | u8 ext_nss_bw_supp = u32_get_bits(vht_cap_info, |
3302 | IEEE80211_VHT_CAP_EXT_NSS_BW_MASK); | |
3303 | u8 supp_chwidth = u32_get_bits(vht_cap_info, | |
3304 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK); | |
8ac3c704 | 3305 | |
7eb26df2 | 3306 | if (!oper || !htop) |
8ac3c704 | 3307 | return false; |
abcff6ef | 3308 | |
33181ea7 SB |
3309 | vht_cap = hw->wiphy->bands[chandef->chan->band]->vht_cap.cap; |
3310 | support_160 = (vht_cap & (IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK | | |
3311 | IEEE80211_VHT_CAP_EXT_NSS_BW_MASK)); | |
3312 | support_80_80 = ((vht_cap & | |
3313 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) || | |
3314 | (vht_cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ && | |
3315 | vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) || | |
3316 | ((vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) >> | |
3317 | IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT > 1)); | |
7eb26df2 JB |
3318 | ccfs0 = oper->center_freq_seg0_idx; |
3319 | ccfs1 = oper->center_freq_seg1_idx; | |
3320 | ccfs2 = (le16_to_cpu(htop->operation_mode) & | |
3321 | IEEE80211_HT_OP_MODE_CCFS2_MASK) | |
3322 | >> IEEE80211_HT_OP_MODE_CCFS2_SHIFT; | |
3323 | ||
7eb26df2 | 3324 | ccf0 = ccfs0; |
2a333a0d JB |
3325 | |
3326 | /* if not supported, parse as though we didn't understand it */ | |
3327 | if (!ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW)) | |
3328 | ext_nss_bw_supp = 0; | |
3329 | ||
3330 | /* | |
3331 | * Cf. IEEE 802.11 Table 9-250 | |
3332 | * | |
3333 | * We really just consider that because it's inefficient to connect | |
3334 | * at a higher bandwidth than we'll actually be able to use. | |
3335 | */ | |
3336 | switch ((supp_chwidth << 4) | ext_nss_bw_supp) { | |
3337 | default: | |
3338 | case 0x00: | |
3339 | ccf1 = 0; | |
3340 | support_160 = false; | |
3341 | support_80_80 = false; | |
3342 | break; | |
3343 | case 0x01: | |
3344 | support_80_80 = false; | |
fc0561dc | 3345 | fallthrough; |
2a333a0d JB |
3346 | case 0x02: |
3347 | case 0x03: | |
7eb26df2 | 3348 | ccf1 = ccfs2; |
2a333a0d JB |
3349 | break; |
3350 | case 0x10: | |
3351 | ccf1 = ccfs1; | |
3352 | break; | |
3353 | case 0x11: | |
3354 | case 0x12: | |
3355 | if (!ccfs1) | |
3356 | ccf1 = ccfs2; | |
3357 | else | |
3358 | ccf1 = ccfs1; | |
3359 | break; | |
3360 | case 0x13: | |
3361 | case 0x20: | |
3362 | case 0x23: | |
3363 | ccf1 = ccfs1; | |
3364 | break; | |
3365 | } | |
7eb26df2 JB |
3366 | |
3367 | cf0 = ieee80211_channel_to_frequency(ccf0, chandef->chan->band); | |
3368 | cf1 = ieee80211_channel_to_frequency(ccf1, chandef->chan->band); | |
abcff6ef JD |
3369 | |
3370 | switch (oper->chan_width) { | |
3371 | case IEEE80211_VHT_CHANWIDTH_USE_HT: | |
7eb26df2 | 3372 | /* just use HT information directly */ |
abcff6ef JD |
3373 | break; |
3374 | case IEEE80211_VHT_CHANWIDTH_80MHZ: | |
8ac3c704 | 3375 | new.width = NL80211_CHAN_WIDTH_80; |
7eb26df2 | 3376 | new.center_freq1 = cf0; |
23665aaf | 3377 | /* If needed, adjust based on the newer interop workaround. */ |
7eb26df2 | 3378 | if (ccf1) { |
23665aaf JM |
3379 | unsigned int diff; |
3380 | ||
7eb26df2 | 3381 | diff = abs(ccf1 - ccf0); |
33181ea7 | 3382 | if ((diff == 8) && support_160) { |
23665aaf | 3383 | new.width = NL80211_CHAN_WIDTH_160; |
7eb26df2 | 3384 | new.center_freq1 = cf1; |
33181ea7 | 3385 | } else if ((diff > 8) && support_80_80) { |
23665aaf | 3386 | new.width = NL80211_CHAN_WIDTH_80P80; |
7eb26df2 | 3387 | new.center_freq2 = cf1; |
23665aaf JM |
3388 | } |
3389 | } | |
abcff6ef JD |
3390 | break; |
3391 | case IEEE80211_VHT_CHANWIDTH_160MHZ: | |
7eb26df2 | 3392 | /* deprecated encoding */ |
8ac3c704 | 3393 | new.width = NL80211_CHAN_WIDTH_160; |
7eb26df2 | 3394 | new.center_freq1 = cf0; |
abcff6ef JD |
3395 | break; |
3396 | case IEEE80211_VHT_CHANWIDTH_80P80MHZ: | |
7eb26df2 | 3397 | /* deprecated encoding */ |
8ac3c704 | 3398 | new.width = NL80211_CHAN_WIDTH_80P80; |
7eb26df2 JB |
3399 | new.center_freq1 = cf0; |
3400 | new.center_freq2 = cf1; | |
abcff6ef JD |
3401 | break; |
3402 | default: | |
8ac3c704 | 3403 | return false; |
abcff6ef JD |
3404 | } |
3405 | ||
8ac3c704 JB |
3406 | if (!cfg80211_chandef_valid(&new)) |
3407 | return false; | |
3408 | ||
3409 | *chandef = new; | |
3410 | return true; | |
abcff6ef JD |
3411 | } |
3412 | ||
57fa5e85 JB |
3413 | bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, |
3414 | const struct ieee80211_he_operation *he_oper, | |
3415 | struct cfg80211_chan_def *chandef) | |
3416 | { | |
3417 | struct ieee80211_local *local = sdata->local; | |
3418 | struct ieee80211_supported_band *sband; | |
3419 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); | |
3420 | const struct ieee80211_sta_he_cap *he_cap; | |
3421 | struct cfg80211_chan_def he_chandef = *chandef; | |
3422 | const struct ieee80211_he_6ghz_oper *he_6ghz_oper; | |
cb751b7a | 3423 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; |
57fa5e85 JB |
3424 | bool support_80_80, support_160; |
3425 | u8 he_phy_cap; | |
3426 | u32 freq; | |
3427 | ||
3428 | if (chandef->chan->band != NL80211_BAND_6GHZ) | |
3429 | return true; | |
3430 | ||
3431 | sband = local->hw.wiphy->bands[NL80211_BAND_6GHZ]; | |
3432 | ||
3433 | he_cap = ieee80211_get_he_iftype_cap(sband, iftype); | |
3434 | if (!he_cap) { | |
3435 | sdata_info(sdata, "Missing iftype sband data/HE cap"); | |
3436 | return false; | |
3437 | } | |
3438 | ||
3439 | he_phy_cap = he_cap->he_cap_elem.phy_cap_info[0]; | |
3440 | support_160 = | |
3441 | he_phy_cap & | |
3442 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; | |
3443 | support_80_80 = | |
3444 | he_phy_cap & | |
3445 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; | |
3446 | ||
3447 | if (!he_oper) { | |
3448 | sdata_info(sdata, | |
3449 | "HE is not advertised on (on %d MHz), expect issues\n", | |
3450 | chandef->chan->center_freq); | |
3451 | return false; | |
3452 | } | |
3453 | ||
3454 | he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper); | |
3455 | ||
3456 | if (!he_6ghz_oper) { | |
3457 | sdata_info(sdata, | |
3458 | "HE 6GHz operation missing (on %d MHz), expect issues\n", | |
3459 | chandef->chan->center_freq); | |
3460 | return false; | |
3461 | } | |
3462 | ||
3463 | freq = ieee80211_channel_to_frequency(he_6ghz_oper->primary, | |
3464 | NL80211_BAND_6GHZ); | |
3465 | he_chandef.chan = ieee80211_get_channel(sdata->local->hw.wiphy, freq); | |
3466 | ||
cb751b7a WG |
3467 | switch (u8_get_bits(he_6ghz_oper->control, |
3468 | IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO)) { | |
3469 | case IEEE80211_6GHZ_CTRL_REG_LPI_AP: | |
3470 | bss_conf->power_type = IEEE80211_REG_LPI_AP; | |
3471 | break; | |
3472 | case IEEE80211_6GHZ_CTRL_REG_SP_AP: | |
3473 | bss_conf->power_type = IEEE80211_REG_SP_AP; | |
3474 | break; | |
3475 | default: | |
3476 | bss_conf->power_type = IEEE80211_REG_UNSET_AP; | |
3477 | break; | |
3478 | } | |
3479 | ||
57fa5e85 JB |
3480 | switch (u8_get_bits(he_6ghz_oper->control, |
3481 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) { | |
3482 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ: | |
3483 | he_chandef.width = NL80211_CHAN_WIDTH_20; | |
3484 | break; | |
3485 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ: | |
3486 | he_chandef.width = NL80211_CHAN_WIDTH_40; | |
3487 | break; | |
3488 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ: | |
3489 | he_chandef.width = NL80211_CHAN_WIDTH_80; | |
3490 | break; | |
3491 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ: | |
3492 | he_chandef.width = NL80211_CHAN_WIDTH_80; | |
3493 | if (!he_6ghz_oper->ccfs1) | |
3494 | break; | |
3495 | if (abs(he_6ghz_oper->ccfs1 - he_6ghz_oper->ccfs0) == 8) { | |
3496 | if (support_160) | |
3497 | he_chandef.width = NL80211_CHAN_WIDTH_160; | |
3498 | } else { | |
3499 | if (support_80_80) | |
3500 | he_chandef.width = NL80211_CHAN_WIDTH_80P80; | |
3501 | } | |
3502 | break; | |
3503 | } | |
3504 | ||
3505 | if (he_chandef.width == NL80211_CHAN_WIDTH_160) { | |
3506 | he_chandef.center_freq1 = | |
3507 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, | |
3508 | NL80211_BAND_6GHZ); | |
3509 | } else { | |
3510 | he_chandef.center_freq1 = | |
3511 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs0, | |
3512 | NL80211_BAND_6GHZ); | |
75bcbd69 JC |
3513 | if (support_80_80 || support_160) |
3514 | he_chandef.center_freq2 = | |
3515 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, | |
3516 | NL80211_BAND_6GHZ); | |
57fa5e85 JB |
3517 | } |
3518 | ||
3519 | if (!cfg80211_chandef_valid(&he_chandef)) { | |
3520 | sdata_info(sdata, | |
3521 | "HE 6GHz operation resulted in invalid chandef: %d MHz/%d/%d MHz/%d MHz\n", | |
3522 | he_chandef.chan ? he_chandef.chan->center_freq : 0, | |
3523 | he_chandef.width, | |
3524 | he_chandef.center_freq1, | |
3525 | he_chandef.center_freq2); | |
3526 | return false; | |
3527 | } | |
3528 | ||
3529 | *chandef = he_chandef; | |
3530 | ||
8fca2b87 | 3531 | return true; |
1d00ce80 TP |
3532 | } |
3533 | ||
3534 | bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper, | |
3535 | struct cfg80211_chan_def *chandef) | |
3536 | { | |
3537 | u32 oper_freq; | |
3538 | ||
3539 | if (!oper) | |
3540 | return false; | |
3541 | ||
3542 | switch (FIELD_GET(S1G_OPER_CH_WIDTH_OPER, oper->ch_width)) { | |
3543 | case IEEE80211_S1G_CHANWIDTH_1MHZ: | |
3544 | chandef->width = NL80211_CHAN_WIDTH_1; | |
3545 | break; | |
3546 | case IEEE80211_S1G_CHANWIDTH_2MHZ: | |
3547 | chandef->width = NL80211_CHAN_WIDTH_2; | |
3548 | break; | |
3549 | case IEEE80211_S1G_CHANWIDTH_4MHZ: | |
3550 | chandef->width = NL80211_CHAN_WIDTH_4; | |
3551 | break; | |
3552 | case IEEE80211_S1G_CHANWIDTH_8MHZ: | |
3553 | chandef->width = NL80211_CHAN_WIDTH_8; | |
3554 | break; | |
3555 | case IEEE80211_S1G_CHANWIDTH_16MHZ: | |
3556 | chandef->width = NL80211_CHAN_WIDTH_16; | |
3557 | break; | |
3558 | default: | |
3559 | return false; | |
3560 | } | |
3561 | ||
3562 | oper_freq = ieee80211_channel_to_freq_khz(oper->oper_ch, | |
3563 | NL80211_BAND_S1GHZ); | |
3564 | chandef->center_freq1 = KHZ_TO_MHZ(oper_freq); | |
3565 | chandef->freq1_offset = oper_freq % 1000; | |
3566 | ||
57fa5e85 JB |
3567 | return true; |
3568 | } | |
3569 | ||
2103dec1 SW |
3570 | int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, |
3571 | const struct ieee80211_supported_band *sband, | |
3572 | const u8 *srates, int srates_len, u32 *rates) | |
3573 | { | |
3574 | u32 rate_flags = ieee80211_chandef_rate_flags(chandef); | |
3575 | int shift = ieee80211_chandef_get_shift(chandef); | |
3576 | struct ieee80211_rate *br; | |
3577 | int brate, rate, i, j, count = 0; | |
3578 | ||
3579 | *rates = 0; | |
3580 | ||
3581 | for (i = 0; i < srates_len; i++) { | |
3582 | rate = srates[i] & 0x7f; | |
3583 | ||
3584 | for (j = 0; j < sband->n_bitrates; j++) { | |
3585 | br = &sband->bitrates[j]; | |
3586 | if ((rate_flags & br->flags) != rate_flags) | |
3587 | continue; | |
3588 | ||
3589 | brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); | |
3590 | if (brate == rate) { | |
3591 | *rates |= BIT(j); | |
3592 | count++; | |
3593 | break; | |
3594 | } | |
3595 | } | |
3596 | } | |
3597 | return count; | |
3598 | } | |
3599 | ||
fc8a7321 | 3600 | int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, |
6b77863b | 3601 | struct sk_buff *skb, bool need_basic, |
57fbcce3 | 3602 | enum nl80211_band band) |
768db343 | 3603 | { |
768db343 AN |
3604 | struct ieee80211_local *local = sdata->local; |
3605 | struct ieee80211_supported_band *sband; | |
2103dec1 | 3606 | int rate, shift; |
768db343 | 3607 | u8 i, rates, *pos; |
fc8a7321 | 3608 | u32 basic_rates = sdata->vif.bss_conf.basic_rates; |
2103dec1 | 3609 | u32 rate_flags; |
768db343 | 3610 | |
2103dec1 SW |
3611 | shift = ieee80211_vif_get_shift(&sdata->vif); |
3612 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
6b77863b | 3613 | sband = local->hw.wiphy->bands[band]; |
2103dec1 SW |
3614 | rates = 0; |
3615 | for (i = 0; i < sband->n_bitrates; i++) { | |
3616 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) | |
3617 | continue; | |
3618 | rates++; | |
3619 | } | |
768db343 AN |
3620 | if (rates > 8) |
3621 | rates = 8; | |
3622 | ||
3623 | if (skb_tailroom(skb) < rates + 2) | |
3624 | return -ENOMEM; | |
3625 | ||
3626 | pos = skb_put(skb, rates + 2); | |
3627 | *pos++ = WLAN_EID_SUPP_RATES; | |
3628 | *pos++ = rates; | |
3629 | for (i = 0; i < rates; i++) { | |
657c3e0c | 3630 | u8 basic = 0; |
2103dec1 SW |
3631 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) |
3632 | continue; | |
3633 | ||
657c3e0c AN |
3634 | if (need_basic && basic_rates & BIT(i)) |
3635 | basic = 0x80; | |
2103dec1 SW |
3636 | rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, |
3637 | 5 * (1 << shift)); | |
3638 | *pos++ = basic | (u8) rate; | |
768db343 AN |
3639 | } |
3640 | ||
3641 | return 0; | |
3642 | } | |
3643 | ||
fc8a7321 | 3644 | int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, |
6b77863b | 3645 | struct sk_buff *skb, bool need_basic, |
57fbcce3 | 3646 | enum nl80211_band band) |
768db343 | 3647 | { |
768db343 AN |
3648 | struct ieee80211_local *local = sdata->local; |
3649 | struct ieee80211_supported_band *sband; | |
cc63ec76 | 3650 | int rate, shift; |
768db343 | 3651 | u8 i, exrates, *pos; |
fc8a7321 | 3652 | u32 basic_rates = sdata->vif.bss_conf.basic_rates; |
2103dec1 SW |
3653 | u32 rate_flags; |
3654 | ||
3655 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
3656 | shift = ieee80211_vif_get_shift(&sdata->vif); | |
768db343 | 3657 | |
6b77863b | 3658 | sband = local->hw.wiphy->bands[band]; |
2103dec1 SW |
3659 | exrates = 0; |
3660 | for (i = 0; i < sband->n_bitrates; i++) { | |
3661 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) | |
3662 | continue; | |
3663 | exrates++; | |
3664 | } | |
3665 | ||
768db343 AN |
3666 | if (exrates > 8) |
3667 | exrates -= 8; | |
3668 | else | |
3669 | exrates = 0; | |
3670 | ||
3671 | if (skb_tailroom(skb) < exrates + 2) | |
3672 | return -ENOMEM; | |
3673 | ||
3674 | if (exrates) { | |
3675 | pos = skb_put(skb, exrates + 2); | |
3676 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
3677 | *pos++ = exrates; | |
3678 | for (i = 8; i < sband->n_bitrates; i++) { | |
657c3e0c | 3679 | u8 basic = 0; |
2103dec1 SW |
3680 | if ((rate_flags & sband->bitrates[i].flags) |
3681 | != rate_flags) | |
3682 | continue; | |
657c3e0c AN |
3683 | if (need_basic && basic_rates & BIT(i)) |
3684 | basic = 0x80; | |
2103dec1 SW |
3685 | rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, |
3686 | 5 * (1 << shift)); | |
3687 | *pos++ = basic | (u8) rate; | |
768db343 AN |
3688 | } |
3689 | } | |
3690 | return 0; | |
3691 | } | |
1dae27f8 WYG |
3692 | |
3693 | int ieee80211_ave_rssi(struct ieee80211_vif *vif) | |
3694 | { | |
3695 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
3696 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
3697 | ||
be6bcabc WYG |
3698 | if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) { |
3699 | /* non-managed type inferfaces */ | |
3700 | return 0; | |
3701 | } | |
338c17ae | 3702 | return -ewma_beacon_signal_read(&ifmgd->ave_beacon_signal); |
1dae27f8 | 3703 | } |
0d8a0a17 | 3704 | EXPORT_SYMBOL_GPL(ieee80211_ave_rssi); |
04ecd257 JB |
3705 | |
3706 | u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) | |
3707 | { | |
3708 | if (!mcs) | |
3709 | return 1; | |
3710 | ||
3711 | /* TODO: consider rx_highest */ | |
3712 | ||
3713 | if (mcs->rx_mask[3]) | |
3714 | return 4; | |
3715 | if (mcs->rx_mask[2]) | |
3716 | return 3; | |
3717 | if (mcs->rx_mask[1]) | |
3718 | return 2; | |
3719 | return 1; | |
3720 | } | |
f4bda337 TP |
3721 | |
3722 | /** | |
3723 | * ieee80211_calculate_rx_timestamp - calculate timestamp in frame | |
3724 | * @local: mac80211 hw info struct | |
3725 | * @status: RX status | |
3726 | * @mpdu_len: total MPDU length (including FCS) | |
3727 | * @mpdu_offset: offset into MPDU to calculate timestamp at | |
3728 | * | |
3729 | * This function calculates the RX timestamp at the given MPDU offset, taking | |
3730 | * into account what the RX timestamp was. An offset of 0 will just normalize | |
3731 | * the timestamp to TSF at beginning of MPDU reception. | |
3732 | */ | |
3733 | u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, | |
3734 | struct ieee80211_rx_status *status, | |
3735 | unsigned int mpdu_len, | |
3736 | unsigned int mpdu_offset) | |
3737 | { | |
3738 | u64 ts = status->mactime; | |
3739 | struct rate_info ri; | |
3740 | u16 rate; | |
da388233 | 3741 | u8 n_ltf; |
f4bda337 TP |
3742 | |
3743 | if (WARN_ON(!ieee80211_have_rx_timestamp(status))) | |
3744 | return 0; | |
3745 | ||
3746 | memset(&ri, 0, sizeof(ri)); | |
3747 | ||
35f4962c JB |
3748 | ri.bw = status->bw; |
3749 | ||
f4bda337 | 3750 | /* Fill cfg80211 rate info */ |
da6a4352 | 3751 | switch (status->encoding) { |
da388233 AS |
3752 | case RX_ENC_HE: |
3753 | ri.flags |= RATE_INFO_FLAGS_HE_MCS; | |
3754 | ri.mcs = status->rate_idx; | |
3755 | ri.nss = status->nss; | |
3756 | ri.he_ru_alloc = status->he_ru; | |
3757 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) | |
3758 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; | |
3759 | ||
3760 | /* | |
3761 | * See P802.11ax_D6.0, section 27.3.4 for | |
3762 | * VHT PPDU format. | |
3763 | */ | |
3764 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
3765 | mpdu_offset += 2; | |
3766 | ts += 36; | |
3767 | ||
3768 | /* | |
3769 | * TODO: | |
3770 | * For HE MU PPDU, add the HE-SIG-B. | |
3771 | * For HE ER PPDU, add 8us for the HE-SIG-A. | |
3772 | * For HE TB PPDU, add 4us for the HE-STF. | |
3773 | * Add the HE-LTF durations - variable. | |
3774 | */ | |
3775 | } | |
3776 | ||
3777 | break; | |
da6a4352 | 3778 | case RX_ENC_HT: |
f4bda337 TP |
3779 | ri.mcs = status->rate_idx; |
3780 | ri.flags |= RATE_INFO_FLAGS_MCS; | |
7fdd69c5 | 3781 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) |
f4bda337 | 3782 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; |
da388233 AS |
3783 | |
3784 | /* | |
3785 | * See P802.11REVmd_D3.0, section 19.3.2 for | |
3786 | * HT PPDU format. | |
3787 | */ | |
3788 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
3789 | mpdu_offset += 2; | |
3790 | if (status->enc_flags & RX_ENC_FLAG_HT_GF) | |
3791 | ts += 24; | |
3792 | else | |
3793 | ts += 32; | |
3794 | ||
3795 | /* | |
3796 | * Add Data HT-LTFs per streams | |
3797 | * TODO: add Extension HT-LTFs, 4us per LTF | |
3798 | */ | |
3799 | n_ltf = ((ri.mcs >> 3) & 3) + 1; | |
3800 | n_ltf = n_ltf == 3 ? 4 : n_ltf; | |
3801 | ts += n_ltf * 4; | |
3802 | } | |
3803 | ||
da6a4352 JB |
3804 | break; |
3805 | case RX_ENC_VHT: | |
5614618e JB |
3806 | ri.flags |= RATE_INFO_FLAGS_VHT_MCS; |
3807 | ri.mcs = status->rate_idx; | |
8613c948 | 3808 | ri.nss = status->nss; |
7fdd69c5 | 3809 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) |
5614618e | 3810 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; |
da388233 AS |
3811 | |
3812 | /* | |
3813 | * See P802.11REVmd_D3.0, section 21.3.2 for | |
3814 | * VHT PPDU format. | |
3815 | */ | |
3816 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
3817 | mpdu_offset += 2; | |
3818 | ts += 36; | |
3819 | ||
3820 | /* | |
3821 | * Add VHT-LTFs per streams | |
3822 | */ | |
3823 | n_ltf = (ri.nss != 1) && (ri.nss % 2) ? | |
3824 | ri.nss + 1 : ri.nss; | |
3825 | ts += 4 * n_ltf; | |
3826 | } | |
3827 | ||
da6a4352 JB |
3828 | break; |
3829 | default: | |
3830 | WARN_ON(1); | |
fc0561dc | 3831 | fallthrough; |
da6a4352 | 3832 | case RX_ENC_LEGACY: { |
f4bda337 | 3833 | struct ieee80211_supported_band *sband; |
2103dec1 SW |
3834 | int shift = 0; |
3835 | int bitrate; | |
3836 | ||
da6a4352 JB |
3837 | switch (status->bw) { |
3838 | case RATE_INFO_BW_10: | |
2103dec1 | 3839 | shift = 1; |
da6a4352 JB |
3840 | break; |
3841 | case RATE_INFO_BW_5: | |
2103dec1 | 3842 | shift = 2; |
da6a4352 | 3843 | break; |
b51f3bee | 3844 | } |
f4bda337 TP |
3845 | |
3846 | sband = local->hw.wiphy->bands[status->band]; | |
2103dec1 SW |
3847 | bitrate = sband->bitrates[status->rate_idx].bitrate; |
3848 | ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); | |
f4a0f0c5 JB |
3849 | |
3850 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
57fbcce3 | 3851 | if (status->band == NL80211_BAND_5GHZ) { |
f4a0f0c5 JB |
3852 | ts += 20 << shift; |
3853 | mpdu_offset += 2; | |
7fdd69c5 | 3854 | } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) { |
f4a0f0c5 JB |
3855 | ts += 96; |
3856 | } else { | |
3857 | ts += 192; | |
3858 | } | |
3859 | } | |
da6a4352 JB |
3860 | break; |
3861 | } | |
f4bda337 TP |
3862 | } |
3863 | ||
3864 | rate = cfg80211_calculate_bitrate(&ri); | |
d86aa4f8 | 3865 | if (WARN_ONCE(!rate, |
f980ebc0 SS |
3866 | "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n", |
3867 | (unsigned long long)status->flag, status->rate_idx, | |
8613c948 | 3868 | status->nss)) |
d86aa4f8 | 3869 | return 0; |
f4bda337 TP |
3870 | |
3871 | /* rewind from end of MPDU */ | |
3872 | if (status->flag & RX_FLAG_MACTIME_END) | |
3873 | ts -= mpdu_len * 8 * 10 / rate; | |
3874 | ||
3875 | ts += mpdu_offset * 8 * 10 / rate; | |
3876 | ||
3877 | return ts; | |
3878 | } | |
164eb02d SW |
3879 | |
3880 | void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) | |
3881 | { | |
3882 | struct ieee80211_sub_if_data *sdata; | |
d2859df5 | 3883 | struct cfg80211_chan_def chandef; |
164eb02d | 3884 | |
4a199068 | 3885 | /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */ |
a05829a7 | 3886 | lockdep_assert_wiphy(local->hw.wiphy); |
4a199068 | 3887 | |
34a3740d | 3888 | mutex_lock(&local->mtx); |
164eb02d | 3889 | list_for_each_entry(sdata, &local->interfaces, list) { |
34a3740d JB |
3890 | /* it might be waiting for the local->mtx, but then |
3891 | * by the time it gets it, sdata->wdev.cac_started | |
3892 | * will no longer be true | |
3893 | */ | |
3894 | cancel_delayed_work(&sdata->dfs_cac_timer_work); | |
164eb02d SW |
3895 | |
3896 | if (sdata->wdev.cac_started) { | |
d2859df5 | 3897 | chandef = sdata->vif.bss_conf.chandef; |
164eb02d SW |
3898 | ieee80211_vif_release_channel(sdata); |
3899 | cfg80211_cac_event(sdata->dev, | |
d2859df5 | 3900 | &chandef, |
164eb02d SW |
3901 | NL80211_RADAR_CAC_ABORTED, |
3902 | GFP_KERNEL); | |
3903 | } | |
3904 | } | |
34a3740d | 3905 | mutex_unlock(&local->mtx); |
164eb02d SW |
3906 | } |
3907 | ||
3908 | void ieee80211_dfs_radar_detected_work(struct work_struct *work) | |
3909 | { | |
3910 | struct ieee80211_local *local = | |
3911 | container_of(work, struct ieee80211_local, radar_detected_work); | |
84a3d1c9 | 3912 | struct cfg80211_chan_def chandef = local->hw.conf.chandef; |
486cf4c0 MK |
3913 | struct ieee80211_chanctx *ctx; |
3914 | int num_chanctx = 0; | |
3915 | ||
3916 | mutex_lock(&local->chanctx_mtx); | |
3917 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
3918 | if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER) | |
3919 | continue; | |
3920 | ||
3921 | num_chanctx++; | |
3922 | chandef = ctx->conf.def; | |
3923 | } | |
3924 | mutex_unlock(&local->chanctx_mtx); | |
164eb02d | 3925 | |
a05829a7 | 3926 | wiphy_lock(local->hw.wiphy); |
164eb02d | 3927 | ieee80211_dfs_cac_cancel(local); |
a05829a7 | 3928 | wiphy_unlock(local->hw.wiphy); |
164eb02d | 3929 | |
486cf4c0 MK |
3930 | if (num_chanctx > 1) |
3931 | /* XXX: multi-channel is not supported yet */ | |
164eb02d | 3932 | WARN_ON(1); |
84a3d1c9 | 3933 | else |
164eb02d | 3934 | cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL); |
164eb02d SW |
3935 | } |
3936 | ||
3937 | void ieee80211_radar_detected(struct ieee80211_hw *hw) | |
3938 | { | |
3939 | struct ieee80211_local *local = hw_to_local(hw); | |
3940 | ||
3941 | trace_api_radar_detected(local); | |
3942 | ||
4a199068 | 3943 | schedule_work(&local->radar_detected_work); |
164eb02d SW |
3944 | } |
3945 | EXPORT_SYMBOL(ieee80211_radar_detected); | |
e6b7cde4 SW |
3946 | |
3947 | u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c) | |
3948 | { | |
3949 | u32 ret; | |
3950 | int tmp; | |
3951 | ||
3952 | switch (c->width) { | |
3953 | case NL80211_CHAN_WIDTH_20: | |
3954 | c->width = NL80211_CHAN_WIDTH_20_NOHT; | |
3955 | ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; | |
3956 | break; | |
3957 | case NL80211_CHAN_WIDTH_40: | |
3958 | c->width = NL80211_CHAN_WIDTH_20; | |
3959 | c->center_freq1 = c->chan->center_freq; | |
3960 | ret = IEEE80211_STA_DISABLE_40MHZ | | |
3961 | IEEE80211_STA_DISABLE_VHT; | |
3962 | break; | |
3963 | case NL80211_CHAN_WIDTH_80: | |
3964 | tmp = (30 + c->chan->center_freq - c->center_freq1)/20; | |
3965 | /* n_P40 */ | |
3966 | tmp /= 2; | |
3967 | /* freq_P40 */ | |
3968 | c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; | |
3969 | c->width = NL80211_CHAN_WIDTH_40; | |
3970 | ret = IEEE80211_STA_DISABLE_VHT; | |
3971 | break; | |
3972 | case NL80211_CHAN_WIDTH_80P80: | |
3973 | c->center_freq2 = 0; | |
3974 | c->width = NL80211_CHAN_WIDTH_80; | |
3975 | ret = IEEE80211_STA_DISABLE_80P80MHZ | | |
3976 | IEEE80211_STA_DISABLE_160MHZ; | |
3977 | break; | |
3978 | case NL80211_CHAN_WIDTH_160: | |
3979 | /* n_P20 */ | |
3980 | tmp = (70 + c->chan->center_freq - c->center_freq1)/20; | |
3981 | /* n_P80 */ | |
3982 | tmp /= 4; | |
3983 | c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; | |
3984 | c->width = NL80211_CHAN_WIDTH_80; | |
3985 | ret = IEEE80211_STA_DISABLE_80P80MHZ | | |
3986 | IEEE80211_STA_DISABLE_160MHZ; | |
3987 | break; | |
3988 | default: | |
3989 | case NL80211_CHAN_WIDTH_20_NOHT: | |
3990 | WARN_ON_ONCE(1); | |
3991 | c->width = NL80211_CHAN_WIDTH_20_NOHT; | |
3992 | ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; | |
3993 | break; | |
df78a0c0 TP |
3994 | case NL80211_CHAN_WIDTH_1: |
3995 | case NL80211_CHAN_WIDTH_2: | |
3996 | case NL80211_CHAN_WIDTH_4: | |
3997 | case NL80211_CHAN_WIDTH_8: | |
3998 | case NL80211_CHAN_WIDTH_16: | |
e6b7cde4 SW |
3999 | case NL80211_CHAN_WIDTH_5: |
4000 | case NL80211_CHAN_WIDTH_10: | |
4001 | WARN_ON_ONCE(1); | |
4002 | /* keep c->width */ | |
4003 | ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; | |
4004 | break; | |
4005 | } | |
4006 | ||
4007 | WARN_ON_ONCE(!cfg80211_chandef_valid(c)); | |
4008 | ||
4009 | return ret; | |
4010 | } | |
687da132 EG |
4011 | |
4012 | /* | |
4013 | * Returns true if smps_mode_new is strictly more restrictive than | |
4014 | * smps_mode_old. | |
4015 | */ | |
4016 | bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, | |
4017 | enum ieee80211_smps_mode smps_mode_new) | |
4018 | { | |
4019 | if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC || | |
4020 | smps_mode_new == IEEE80211_SMPS_AUTOMATIC)) | |
4021 | return false; | |
4022 | ||
4023 | switch (smps_mode_old) { | |
4024 | case IEEE80211_SMPS_STATIC: | |
4025 | return false; | |
4026 | case IEEE80211_SMPS_DYNAMIC: | |
4027 | return smps_mode_new == IEEE80211_SMPS_STATIC; | |
4028 | case IEEE80211_SMPS_OFF: | |
4029 | return smps_mode_new != IEEE80211_SMPS_OFF; | |
4030 | default: | |
4031 | WARN_ON(1); | |
4032 | } | |
4033 | ||
4034 | return false; | |
4035 | } | |
c6da674a CYY |
4036 | |
4037 | int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, | |
4038 | struct cfg80211_csa_settings *csa_settings) | |
4039 | { | |
4040 | struct sk_buff *skb; | |
4041 | struct ieee80211_mgmt *mgmt; | |
4042 | struct ieee80211_local *local = sdata->local; | |
4043 | int freq; | |
4c121fd6 JB |
4044 | int hdr_len = offsetofend(struct ieee80211_mgmt, |
4045 | u.action.u.chan_switch); | |
c6da674a CYY |
4046 | u8 *pos; |
4047 | ||
4048 | if (sdata->vif.type != NL80211_IFTYPE_ADHOC && | |
4049 | sdata->vif.type != NL80211_IFTYPE_MESH_POINT) | |
4050 | return -EOPNOTSUPP; | |
4051 | ||
4052 | skb = dev_alloc_skb(local->tx_headroom + hdr_len + | |
4053 | 5 + /* channel switch announcement element */ | |
4054 | 3 + /* secondary channel offset element */ | |
75d627d5 | 4055 | 5 + /* wide bandwidth channel switch announcement */ |
c6da674a CYY |
4056 | 8); /* mesh channel switch parameters element */ |
4057 | if (!skb) | |
4058 | return -ENOMEM; | |
4059 | ||
4060 | skb_reserve(skb, local->tx_headroom); | |
b080db58 | 4061 | mgmt = skb_put_zero(skb, hdr_len); |
c6da674a CYY |
4062 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
4063 | IEEE80211_STYPE_ACTION); | |
4064 | ||
4065 | eth_broadcast_addr(mgmt->da); | |
4066 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); | |
4067 | if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
4068 | memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); | |
4069 | } else { | |
4070 | struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; | |
4071 | memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); | |
4072 | } | |
4073 | mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; | |
4074 | mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; | |
4075 | pos = skb_put(skb, 5); | |
4076 | *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ | |
4077 | *pos++ = 3; /* IE length */ | |
4078 | *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ | |
4079 | freq = csa_settings->chandef.chan->center_freq; | |
4080 | *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ | |
4081 | *pos++ = csa_settings->count; /* count */ | |
4082 | ||
4083 | if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { | |
4084 | enum nl80211_channel_type ch_type; | |
4085 | ||
4086 | skb_put(skb, 3); | |
4087 | *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ | |
4088 | *pos++ = 1; /* IE length */ | |
4089 | ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); | |
4090 | if (ch_type == NL80211_CHAN_HT40PLUS) | |
4091 | *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
4092 | else | |
4093 | *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
4094 | } | |
4095 | ||
4096 | if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
4097 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; | |
c6da674a CYY |
4098 | |
4099 | skb_put(skb, 8); | |
4100 | *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */ | |
4101 | *pos++ = 6; /* IE length */ | |
4102 | *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */ | |
4103 | *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */ | |
4104 | *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR; | |
4105 | *pos++ |= csa_settings->block_tx ? | |
4106 | WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00; | |
4107 | put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */ | |
4108 | pos += 2; | |
ca91dc97 | 4109 | put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */ |
c6da674a | 4110 | pos += 2; |
c6da674a CYY |
4111 | } |
4112 | ||
75d627d5 SW |
4113 | if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_80 || |
4114 | csa_settings->chandef.width == NL80211_CHAN_WIDTH_80P80 || | |
4115 | csa_settings->chandef.width == NL80211_CHAN_WIDTH_160) { | |
4116 | skb_put(skb, 5); | |
4117 | ieee80211_ie_build_wide_bw_cs(pos, &csa_settings->chandef); | |
4118 | } | |
4119 | ||
c6da674a CYY |
4120 | ieee80211_tx_skb(sdata, skb); |
4121 | return 0; | |
4122 | } | |
2475b1cc MS |
4123 | |
4124 | bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs) | |
4125 | { | |
4126 | return !(cs == NULL || cs->cipher == 0 || | |
4127 | cs->hdr_len < cs->pn_len + cs->pn_off || | |
4128 | cs->hdr_len <= cs->key_idx_off || | |
4129 | cs->key_idx_shift > 7 || | |
4130 | cs->key_idx_mask == 0); | |
4131 | } | |
4132 | ||
4133 | bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n) | |
4134 | { | |
4135 | int i; | |
4136 | ||
4137 | /* Ensure we have enough iftype bitmap space for all iftype values */ | |
4138 | WARN_ON((NUM_NL80211_IFTYPES / 8 + 1) > sizeof(cs[0].iftype)); | |
4139 | ||
4140 | for (i = 0; i < n; i++) | |
4141 | if (!ieee80211_cs_valid(&cs[i])) | |
4142 | return false; | |
4143 | ||
4144 | return true; | |
4145 | } | |
4146 | ||
4147 | const struct ieee80211_cipher_scheme * | |
4148 | ieee80211_cs_get(struct ieee80211_local *local, u32 cipher, | |
4149 | enum nl80211_iftype iftype) | |
4150 | { | |
4151 | const struct ieee80211_cipher_scheme *l = local->hw.cipher_schemes; | |
4152 | int n = local->hw.n_cipher_schemes; | |
4153 | int i; | |
4154 | const struct ieee80211_cipher_scheme *cs = NULL; | |
4155 | ||
4156 | for (i = 0; i < n; i++) { | |
4157 | if (l[i].cipher == cipher) { | |
4158 | cs = &l[i]; | |
4159 | break; | |
4160 | } | |
4161 | } | |
4162 | ||
4163 | if (!cs || !(cs->iftype & BIT(iftype))) | |
4164 | return NULL; | |
4165 | ||
4166 | return cs; | |
4167 | } | |
4168 | ||
4169 | int ieee80211_cs_headroom(struct ieee80211_local *local, | |
4170 | struct cfg80211_crypto_settings *crypto, | |
4171 | enum nl80211_iftype iftype) | |
4172 | { | |
4173 | const struct ieee80211_cipher_scheme *cs; | |
4174 | int headroom = IEEE80211_ENCRYPT_HEADROOM; | |
4175 | int i; | |
4176 | ||
4177 | for (i = 0; i < crypto->n_ciphers_pairwise; i++) { | |
4178 | cs = ieee80211_cs_get(local, crypto->ciphers_pairwise[i], | |
4179 | iftype); | |
4180 | ||
4181 | if (cs && headroom < cs->hdr_len) | |
4182 | headroom = cs->hdr_len; | |
4183 | } | |
4184 | ||
4185 | cs = ieee80211_cs_get(local, crypto->cipher_group, iftype); | |
4186 | if (cs && headroom < cs->hdr_len) | |
4187 | headroom = cs->hdr_len; | |
4188 | ||
4189 | return headroom; | |
4190 | } | |
a7022e65 FF |
4191 | |
4192 | static bool | |
4193 | ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i) | |
4194 | { | |
4195 | s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1); | |
4196 | int skip; | |
4197 | ||
4198 | if (end > 0) | |
4199 | return false; | |
4200 | ||
519ee691 JD |
4201 | /* One shot NOA */ |
4202 | if (data->count[i] == 1) | |
4203 | return false; | |
4204 | ||
4205 | if (data->desc[i].interval == 0) | |
4206 | return false; | |
4207 | ||
a7022e65 FF |
4208 | /* End time is in the past, check for repetitions */ |
4209 | skip = DIV_ROUND_UP(-end, data->desc[i].interval); | |
4210 | if (data->count[i] < 255) { | |
4211 | if (data->count[i] <= skip) { | |
4212 | data->count[i] = 0; | |
4213 | return false; | |
4214 | } | |
4215 | ||
4216 | data->count[i] -= skip; | |
4217 | } | |
4218 | ||
4219 | data->desc[i].start += skip * data->desc[i].interval; | |
4220 | ||
4221 | return true; | |
4222 | } | |
4223 | ||
4224 | static bool | |
4225 | ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf, | |
4226 | s32 *offset) | |
4227 | { | |
4228 | bool ret = false; | |
4229 | int i; | |
4230 | ||
4231 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4232 | s32 cur; | |
4233 | ||
4234 | if (!data->count[i]) | |
4235 | continue; | |
4236 | ||
4237 | if (ieee80211_extend_noa_desc(data, tsf + *offset, i)) | |
4238 | ret = true; | |
4239 | ||
4240 | cur = data->desc[i].start - tsf; | |
4241 | if (cur > *offset) | |
4242 | continue; | |
4243 | ||
4244 | cur = data->desc[i].start + data->desc[i].duration - tsf; | |
4245 | if (cur > *offset) | |
4246 | *offset = cur; | |
4247 | } | |
4248 | ||
4249 | return ret; | |
4250 | } | |
4251 | ||
4252 | static u32 | |
4253 | ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf) | |
4254 | { | |
4255 | s32 offset = 0; | |
4256 | int tries = 0; | |
4257 | /* | |
4258 | * arbitrary limit, used to avoid infinite loops when combined NoA | |
4259 | * descriptors cover the full time period. | |
4260 | */ | |
4261 | int max_tries = 5; | |
4262 | ||
4263 | ieee80211_extend_absent_time(data, tsf, &offset); | |
4264 | do { | |
4265 | if (!ieee80211_extend_absent_time(data, tsf, &offset)) | |
4266 | break; | |
4267 | ||
4268 | tries++; | |
4269 | } while (tries < max_tries); | |
4270 | ||
4271 | return offset; | |
4272 | } | |
4273 | ||
4274 | void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf) | |
4275 | { | |
4276 | u32 next_offset = BIT(31) - 1; | |
4277 | int i; | |
4278 | ||
4279 | data->absent = 0; | |
4280 | data->has_next_tsf = false; | |
4281 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4282 | s32 start; | |
4283 | ||
4284 | if (!data->count[i]) | |
4285 | continue; | |
4286 | ||
4287 | ieee80211_extend_noa_desc(data, tsf, i); | |
4288 | start = data->desc[i].start - tsf; | |
4289 | if (start <= 0) | |
4290 | data->absent |= BIT(i); | |
4291 | ||
4292 | if (next_offset > start) | |
4293 | next_offset = start; | |
4294 | ||
4295 | data->has_next_tsf = true; | |
4296 | } | |
4297 | ||
4298 | if (data->absent) | |
4299 | next_offset = ieee80211_get_noa_absent_time(data, tsf); | |
4300 | ||
4301 | data->next_tsf = tsf + next_offset; | |
4302 | } | |
4303 | EXPORT_SYMBOL(ieee80211_update_p2p_noa); | |
4304 | ||
4305 | int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr, | |
4306 | struct ieee80211_noa_data *data, u32 tsf) | |
4307 | { | |
4308 | int ret = 0; | |
4309 | int i; | |
4310 | ||
4311 | memset(data, 0, sizeof(*data)); | |
4312 | ||
4313 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4314 | const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i]; | |
4315 | ||
4316 | if (!desc->count || !desc->duration) | |
4317 | continue; | |
4318 | ||
4319 | data->count[i] = desc->count; | |
4320 | data->desc[i].start = le32_to_cpu(desc->start_time); | |
4321 | data->desc[i].duration = le32_to_cpu(desc->duration); | |
4322 | data->desc[i].interval = le32_to_cpu(desc->interval); | |
4323 | ||
4324 | if (data->count[i] > 1 && | |
4325 | data->desc[i].interval < data->desc[i].duration) | |
4326 | continue; | |
4327 | ||
4328 | ieee80211_extend_noa_desc(data, tsf, i); | |
4329 | ret++; | |
4330 | } | |
4331 | ||
4332 | if (ret) | |
4333 | ieee80211_update_p2p_noa(data, tsf); | |
4334 | ||
4335 | return ret; | |
4336 | } | |
4337 | EXPORT_SYMBOL(ieee80211_parse_p2p_noa); | |
057d5f4b TP |
4338 | |
4339 | void ieee80211_recalc_dtim(struct ieee80211_local *local, | |
4340 | struct ieee80211_sub_if_data *sdata) | |
4341 | { | |
4342 | u64 tsf = drv_get_tsf(local, sdata); | |
4343 | u64 dtim_count = 0; | |
4344 | u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; | |
4345 | u8 dtim_period = sdata->vif.bss_conf.dtim_period; | |
4346 | struct ps_data *ps; | |
4347 | u8 bcns_from_dtim; | |
4348 | ||
4349 | if (tsf == -1ULL || !beacon_int || !dtim_period) | |
4350 | return; | |
4351 | ||
4352 | if (sdata->vif.type == NL80211_IFTYPE_AP || | |
4353 | sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { | |
4354 | if (!sdata->bss) | |
4355 | return; | |
4356 | ||
4357 | ps = &sdata->bss->ps; | |
4358 | } else if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
4359 | ps = &sdata->u.mesh.ps; | |
4360 | } else { | |
4361 | return; | |
4362 | } | |
4363 | ||
4364 | /* | |
4365 | * actually finds last dtim_count, mac80211 will update in | |
4366 | * __beacon_add_tim(). | |
4367 | * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period | |
4368 | */ | |
4369 | do_div(tsf, beacon_int); | |
4370 | bcns_from_dtim = do_div(tsf, dtim_period); | |
4371 | /* just had a DTIM */ | |
4372 | if (!bcns_from_dtim) | |
4373 | dtim_count = 0; | |
4374 | else | |
4375 | dtim_count = dtim_period - bcns_from_dtim; | |
4376 | ||
4377 | ps->dtim_count = dtim_count; | |
4378 | } | |
73de86a3 | 4379 | |
71e6195e MK |
4380 | static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local, |
4381 | struct ieee80211_chanctx *ctx) | |
4382 | { | |
4383 | struct ieee80211_sub_if_data *sdata; | |
4384 | u8 radar_detect = 0; | |
4385 | ||
4386 | lockdep_assert_held(&local->chanctx_mtx); | |
4387 | ||
4388 | if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)) | |
4389 | return 0; | |
4390 | ||
4391 | list_for_each_entry(sdata, &ctx->reserved_vifs, reserved_chanctx_list) | |
4392 | if (sdata->reserved_radar_required) | |
4393 | radar_detect |= BIT(sdata->reserved_chandef.width); | |
4394 | ||
4395 | /* | |
4396 | * An in-place reservation context should not have any assigned vifs | |
4397 | * until it replaces the other context. | |
4398 | */ | |
4399 | WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER && | |
4400 | !list_empty(&ctx->assigned_vifs)); | |
4401 | ||
4402 | list_for_each_entry(sdata, &ctx->assigned_vifs, assigned_chanctx_list) | |
4403 | if (sdata->radar_required) | |
4404 | radar_detect |= BIT(sdata->vif.bss_conf.chandef.width); | |
4405 | ||
4406 | return radar_detect; | |
4407 | } | |
4408 | ||
73de86a3 LC |
4409 | int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, |
4410 | const struct cfg80211_chan_def *chandef, | |
4411 | enum ieee80211_chanctx_mode chanmode, | |
4412 | u8 radar_detect) | |
4413 | { | |
4414 | struct ieee80211_local *local = sdata->local; | |
4415 | struct ieee80211_sub_if_data *sdata_iter; | |
4416 | enum nl80211_iftype iftype = sdata->wdev.iftype; | |
73de86a3 | 4417 | struct ieee80211_chanctx *ctx; |
73de86a3 | 4418 | int total = 1; |
e227300c PK |
4419 | struct iface_combination_params params = { |
4420 | .radar_detect = radar_detect, | |
4421 | }; | |
73de86a3 LC |
4422 | |
4423 | lockdep_assert_held(&local->chanctx_mtx); | |
4424 | ||
4425 | if (WARN_ON(hweight32(radar_detect) > 1)) | |
4426 | return -EINVAL; | |
4427 | ||
b6a55015 LC |
4428 | if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED && |
4429 | !chandef->chan)) | |
73de86a3 LC |
4430 | return -EINVAL; |
4431 | ||
4432 | if (WARN_ON(iftype >= NUM_NL80211_IFTYPES)) | |
4433 | return -EINVAL; | |
4434 | ||
ac668afe JB |
4435 | if (sdata->vif.type == NL80211_IFTYPE_AP || |
4436 | sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { | |
4437 | /* | |
4438 | * always passing this is harmless, since it'll be the | |
4439 | * same value that cfg80211 finds if it finds the same | |
4440 | * interface ... and that's always allowed | |
4441 | */ | |
4442 | params.new_beacon_int = sdata->vif.bss_conf.beacon_int; | |
4443 | } | |
4444 | ||
73de86a3 | 4445 | /* Always allow software iftypes */ |
e6f40511 | 4446 | if (cfg80211_iftype_allowed(local->hw.wiphy, iftype, 0, 1)) { |
73de86a3 LC |
4447 | if (radar_detect) |
4448 | return -EINVAL; | |
4449 | return 0; | |
4450 | } | |
4451 | ||
e227300c PK |
4452 | if (chandef) |
4453 | params.num_different_channels = 1; | |
73de86a3 LC |
4454 | |
4455 | if (iftype != NL80211_IFTYPE_UNSPECIFIED) | |
e227300c | 4456 | params.iftype_num[iftype] = 1; |
73de86a3 LC |
4457 | |
4458 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
5bcae31d MK |
4459 | if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) |
4460 | continue; | |
e227300c PK |
4461 | params.radar_detect |= |
4462 | ieee80211_chanctx_radar_detect(local, ctx); | |
73de86a3 | 4463 | if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) { |
e227300c | 4464 | params.num_different_channels++; |
73de86a3 LC |
4465 | continue; |
4466 | } | |
b6a55015 | 4467 | if (chandef && chanmode == IEEE80211_CHANCTX_SHARED && |
73de86a3 LC |
4468 | cfg80211_chandef_compatible(chandef, |
4469 | &ctx->conf.def)) | |
4470 | continue; | |
e227300c | 4471 | params.num_different_channels++; |
73de86a3 LC |
4472 | } |
4473 | ||
4474 | list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { | |
4475 | struct wireless_dev *wdev_iter; | |
4476 | ||
4477 | wdev_iter = &sdata_iter->wdev; | |
4478 | ||
4479 | if (sdata_iter == sdata || | |
0f611d28 | 4480 | !ieee80211_sdata_running(sdata_iter) || |
e6f40511 MP |
4481 | cfg80211_iftype_allowed(local->hw.wiphy, |
4482 | wdev_iter->iftype, 0, 1)) | |
73de86a3 LC |
4483 | continue; |
4484 | ||
e227300c | 4485 | params.iftype_num[wdev_iter->iftype]++; |
73de86a3 LC |
4486 | total++; |
4487 | } | |
4488 | ||
e227300c | 4489 | if (total == 1 && !params.radar_detect) |
73de86a3 LC |
4490 | return 0; |
4491 | ||
e227300c | 4492 | return cfg80211_check_combinations(local->hw.wiphy, ¶ms); |
73de86a3 | 4493 | } |
6fa001bc MK |
4494 | |
4495 | static void | |
4496 | ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c, | |
4497 | void *data) | |
4498 | { | |
4499 | u32 *max_num_different_channels = data; | |
4500 | ||
4501 | *max_num_different_channels = max(*max_num_different_channels, | |
4502 | c->num_different_channels); | |
4503 | } | |
4504 | ||
4505 | int ieee80211_max_num_channels(struct ieee80211_local *local) | |
4506 | { | |
4507 | struct ieee80211_sub_if_data *sdata; | |
6fa001bc | 4508 | struct ieee80211_chanctx *ctx; |
6fa001bc MK |
4509 | u32 max_num_different_channels = 1; |
4510 | int err; | |
e227300c | 4511 | struct iface_combination_params params = {0}; |
6fa001bc MK |
4512 | |
4513 | lockdep_assert_held(&local->chanctx_mtx); | |
4514 | ||
4515 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
5bcae31d MK |
4516 | if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) |
4517 | continue; | |
4518 | ||
e227300c | 4519 | params.num_different_channels++; |
6fa001bc | 4520 | |
e227300c PK |
4521 | params.radar_detect |= |
4522 | ieee80211_chanctx_radar_detect(local, ctx); | |
6fa001bc MK |
4523 | } |
4524 | ||
4525 | list_for_each_entry_rcu(sdata, &local->interfaces, list) | |
e227300c | 4526 | params.iftype_num[sdata->wdev.iftype]++; |
6fa001bc | 4527 | |
e227300c PK |
4528 | err = cfg80211_iter_combinations(local->hw.wiphy, ¶ms, |
4529 | ieee80211_iter_max_chans, | |
6fa001bc MK |
4530 | &max_num_different_channels); |
4531 | if (err < 0) | |
4532 | return err; | |
4533 | ||
4534 | return max_num_different_channels; | |
7957c6c8 TP |
4535 | } |
4536 | ||
4537 | void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, | |
4538 | struct ieee80211_sta_s1g_cap *caps, | |
4539 | struct sk_buff *skb) | |
4540 | { | |
4541 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
4542 | struct ieee80211_s1g_cap s1g_capab; | |
4543 | u8 *pos; | |
4544 | int i; | |
4545 | ||
4546 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
4547 | return; | |
4548 | ||
4549 | if (!caps->s1g) | |
4550 | return; | |
4551 | ||
4552 | memcpy(s1g_capab.capab_info, caps->cap, sizeof(caps->cap)); | |
4553 | memcpy(s1g_capab.supp_mcs_nss, caps->nss_mcs, sizeof(caps->nss_mcs)); | |
4554 | ||
4555 | /* override the capability info */ | |
4556 | for (i = 0; i < sizeof(ifmgd->s1g_capa.capab_info); i++) { | |
4557 | u8 mask = ifmgd->s1g_capa_mask.capab_info[i]; | |
4558 | ||
4559 | s1g_capab.capab_info[i] &= ~mask; | |
4560 | s1g_capab.capab_info[i] |= ifmgd->s1g_capa.capab_info[i] & mask; | |
4561 | } | |
4562 | ||
4563 | /* then MCS and NSS set */ | |
4564 | for (i = 0; i < sizeof(ifmgd->s1g_capa.supp_mcs_nss); i++) { | |
4565 | u8 mask = ifmgd->s1g_capa_mask.supp_mcs_nss[i]; | |
4566 | ||
4567 | s1g_capab.supp_mcs_nss[i] &= ~mask; | |
4568 | s1g_capab.supp_mcs_nss[i] |= | |
4569 | ifmgd->s1g_capa.supp_mcs_nss[i] & mask; | |
4570 | } | |
4571 | ||
4572 | pos = skb_put(skb, 2 + sizeof(s1g_capab)); | |
4573 | *pos++ = WLAN_EID_S1G_CAPABILITIES; | |
4574 | *pos++ = sizeof(s1g_capab); | |
4575 | ||
4576 | memcpy(pos, &s1g_capab, sizeof(s1g_capab)); | |
6fa001bc | 4577 | } |
40b861a0 | 4578 | |
1d00ce80 TP |
4579 | void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, |
4580 | struct sk_buff *skb) | |
4581 | { | |
4582 | u8 *pos = skb_put(skb, 3); | |
4583 | ||
4584 | *pos++ = WLAN_EID_AID_REQUEST; | |
4585 | *pos++ = 1; | |
4586 | *pos++ = 0; | |
4587 | } | |
4588 | ||
40b861a0 AN |
4589 | u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo) |
4590 | { | |
4591 | *buf++ = WLAN_EID_VENDOR_SPECIFIC; | |
4592 | *buf++ = 7; /* len */ | |
4593 | *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */ | |
4594 | *buf++ = 0x50; | |
4595 | *buf++ = 0xf2; | |
4596 | *buf++ = 2; /* WME */ | |
4597 | *buf++ = 0; /* WME info */ | |
4598 | *buf++ = 1; /* WME ver */ | |
4599 | *buf++ = qosinfo; /* U-APSD no in use */ | |
4600 | ||
4601 | return buf; | |
4602 | } | |
ba8c3d6f | 4603 | |
f2ac7e30 MK |
4604 | void ieee80211_txq_get_depth(struct ieee80211_txq *txq, |
4605 | unsigned long *frame_cnt, | |
4606 | unsigned long *byte_cnt) | |
4607 | { | |
4608 | struct txq_info *txqi = to_txq_info(txq); | |
bb42f2d1 THJ |
4609 | u32 frag_cnt = 0, frag_bytes = 0; |
4610 | struct sk_buff *skb; | |
4611 | ||
4612 | skb_queue_walk(&txqi->frags, skb) { | |
4613 | frag_cnt++; | |
4614 | frag_bytes += skb->len; | |
4615 | } | |
f2ac7e30 MK |
4616 | |
4617 | if (frame_cnt) | |
bb42f2d1 | 4618 | *frame_cnt = txqi->tin.backlog_packets + frag_cnt; |
f2ac7e30 MK |
4619 | |
4620 | if (byte_cnt) | |
bb42f2d1 | 4621 | *byte_cnt = txqi->tin.backlog_bytes + frag_bytes; |
f2ac7e30 MK |
4622 | } |
4623 | EXPORT_SYMBOL(ieee80211_txq_get_depth); | |
f438ceb8 EG |
4624 | |
4625 | const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = { | |
4626 | IEEE80211_WMM_IE_STA_QOSINFO_AC_VO, | |
4627 | IEEE80211_WMM_IE_STA_QOSINFO_AC_VI, | |
4628 | IEEE80211_WMM_IE_STA_QOSINFO_AC_BE, | |
4629 | IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | |
4630 | }; | |
05d10957 TP |
4631 | |
4632 | u16 ieee80211_encode_usf(int listen_interval) | |
4633 | { | |
4634 | static const int listen_int_usf[] = { 1, 10, 1000, 10000 }; | |
4635 | u16 ui, usf = 0; | |
4636 | ||
4637 | /* find greatest USF */ | |
4638 | while (usf < IEEE80211_MAX_USF) { | |
4639 | if (listen_interval % listen_int_usf[usf + 1]) | |
4640 | break; | |
4641 | usf += 1; | |
4642 | } | |
4643 | ui = listen_interval / listen_int_usf[usf]; | |
4644 | ||
4645 | /* error if there is a remainder. Should've been checked by user */ | |
4646 | WARN_ON_ONCE(ui > IEEE80211_MAX_UI); | |
4647 | listen_interval = FIELD_PREP(LISTEN_INT_USF, usf) | | |
4648 | FIELD_PREP(LISTEN_INT_UI, ui); | |
4649 | ||
4650 | return (u16) listen_interval; | |
4651 | } |