Commit | Line | Data |
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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
c2d1560a JB |
2 | /* |
3 | * Copyright 2002-2005, Instant802 Networks, Inc. | |
4 | * Copyright 2005-2006, Devicescape Software, Inc. | |
5 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> | |
6 | * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> | |
d98ad83e | 7 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
da6a4352 | 8 | * Copyright (C) 2015-2017 Intel Deutschland GmbH |
23a5f0af | 9 | * Copyright (C) 2018-2022 Intel Corporation |
c2d1560a | 10 | * |
c2d1560a JB |
11 | * utilities for mac80211 |
12 | */ | |
13 | ||
14 | #include <net/mac80211.h> | |
15 | #include <linux/netdevice.h> | |
bc3b2d7f | 16 | #include <linux/export.h> |
c2d1560a JB |
17 | #include <linux/types.h> |
18 | #include <linux/slab.h> | |
19 | #include <linux/skbuff.h> | |
20 | #include <linux/etherdevice.h> | |
21 | #include <linux/if_arp.h> | |
c2d1560a | 22 | #include <linux/bitmap.h> |
dd76986b | 23 | #include <linux/crc32.h> |
881d966b | 24 | #include <net/net_namespace.h> |
c2d1560a | 25 | #include <net/cfg80211.h> |
dabeb344 | 26 | #include <net/rtnetlink.h> |
c2d1560a JB |
27 | |
28 | #include "ieee80211_i.h" | |
24487981 | 29 | #include "driver-ops.h" |
2c8dccc7 | 30 | #include "rate.h" |
ee385855 | 31 | #include "mesh.h" |
c2d1560a | 32 | #include "wme.h" |
f2753ddb | 33 | #include "led.h" |
fffd0934 | 34 | #include "wep.h" |
c2d1560a JB |
35 | |
36 | /* privid for wiphys to determine whether they belong to us or not */ | |
8a47cea7 | 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; |
39eac2de | 194 | if (sdata->deflink.operating_11g_mode) |
25d834e1 | 195 | erp = rate->flags & IEEE80211_RATE_ERP_G; |
438b61b7 | 196 | shift = ieee80211_vif_get_shift(vif); |
25d834e1 | 197 | } |
8318d78a | 198 | |
4ee73f33 | 199 | dur = ieee80211_frame_duration(band, frame_len, rate->bitrate, erp, |
438b61b7 | 200 | short_preamble, shift); |
c2d1560a JB |
201 | |
202 | return cpu_to_le16(dur); | |
203 | } | |
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; |
39eac2de | 228 | if (sdata->deflink.operating_11g_mode) |
25d834e1 | 229 | erp = rate->flags & IEEE80211_RATE_ERP_G; |
438b61b7 | 230 | shift = ieee80211_vif_get_shift(vif); |
25d834e1 | 231 | } |
c2d1560a | 232 | |
2103dec1 SW |
233 | bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); |
234 | ||
c2d1560a | 235 | /* CTS duration */ |
2103dec1 | 236 | dur = ieee80211_frame_duration(sband->band, 10, bitrate, |
438b61b7 | 237 | erp, short_preamble, shift); |
c2d1560a | 238 | /* Data frame duration */ |
2103dec1 | 239 | dur += ieee80211_frame_duration(sband->band, frame_len, bitrate, |
438b61b7 | 240 | erp, short_preamble, shift); |
c2d1560a | 241 | /* ACK duration */ |
2103dec1 | 242 | dur += ieee80211_frame_duration(sband->band, 10, bitrate, |
438b61b7 | 243 | erp, short_preamble, shift); |
c2d1560a JB |
244 | |
245 | return cpu_to_le16(dur); | |
246 | } | |
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; |
39eac2de | 271 | if (sdata->deflink.operating_11g_mode) |
25d834e1 | 272 | erp = rate->flags & IEEE80211_RATE_ERP_G; |
438b61b7 | 273 | shift = ieee80211_vif_get_shift(vif); |
25d834e1 | 274 | } |
c2d1560a | 275 | |
2103dec1 SW |
276 | bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); |
277 | ||
c2d1560a | 278 | /* Data frame duration */ |
2103dec1 | 279 | dur = ieee80211_frame_duration(sband->band, frame_len, bitrate, |
438b61b7 | 280 | erp, short_preamble, shift); |
e039fa4a | 281 | if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) { |
c2d1560a | 282 | /* ACK duration */ |
2103dec1 | 283 | dur += ieee80211_frame_duration(sband->band, 10, bitrate, |
438b61b7 | 284 | erp, short_preamble, shift); |
c2d1560a JB |
285 | } |
286 | ||
287 | return cpu_to_le16(dur); | |
288 | } | |
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 | 303 | |
527008e5 AW |
304 | sdata->vif.txqs_stopped[ac] = false; |
305 | ||
f856373e FF |
306 | if (!test_bit(SDATA_STATE_RUNNING, &sdata->state)) |
307 | goto out; | |
308 | ||
21a5d4c3 MP |
309 | if (sdata->vif.type == NL80211_IFTYPE_AP) |
310 | ps = &sdata->bss->ps; | |
311 | ||
21a5d4c3 MP |
312 | list_for_each_entry_rcu(sta, &local->sta_list, list) { |
313 | if (sdata != sta->sdata) | |
314 | continue; | |
315 | ||
316 | for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) { | |
317 | struct ieee80211_txq *txq = sta->sta.txq[i]; | |
318 | ||
a5ae3264 ES |
319 | if (!txq) |
320 | continue; | |
321 | ||
21a5d4c3 MP |
322 | txqi = to_txq_info(txq); |
323 | ||
324 | if (ac != txq->ac) | |
325 | continue; | |
326 | ||
327 | if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, | |
328 | &txqi->flags)) | |
329 | continue; | |
330 | ||
d8dec42b | 331 | spin_unlock(&fq->lock); |
21a5d4c3 | 332 | drv_wake_tx_queue(local, txqi); |
d8dec42b | 333 | spin_lock(&fq->lock); |
21a5d4c3 MP |
334 | } |
335 | } | |
336 | ||
337 | if (!vif->txq) | |
338 | goto out; | |
339 | ||
340 | txqi = to_txq_info(vif->txq); | |
341 | ||
342 | if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txqi->flags) || | |
343 | (ps && atomic_read(&ps->num_sta_ps)) || ac != vif->txq->ac) | |
344 | goto out; | |
345 | ||
d8dec42b | 346 | spin_unlock(&fq->lock); |
21a5d4c3 MP |
347 | |
348 | drv_wake_tx_queue(local, txqi); | |
d8dec42b | 349 | local_bh_enable(); |
21a5d4c3 MP |
350 | return; |
351 | out: | |
d8dec42b JB |
352 | spin_unlock(&fq->lock); |
353 | local_bh_enable(); | |
21a5d4c3 MP |
354 | } |
355 | ||
f6c7f03f EG |
356 | static void |
357 | __releases(&local->queue_stop_reason_lock) | |
358 | __acquires(&local->queue_stop_reason_lock) | |
359 | _ieee80211_wake_txqs(struct ieee80211_local *local, unsigned long *flags) | |
21a5d4c3 | 360 | { |
21a5d4c3 MP |
361 | struct ieee80211_sub_if_data *sdata; |
362 | int n_acs = IEEE80211_NUM_ACS; | |
21a5d4c3 MP |
363 | int i; |
364 | ||
365 | rcu_read_lock(); | |
21a5d4c3 MP |
366 | |
367 | if (local->hw.queues < IEEE80211_NUM_ACS) | |
368 | n_acs = 1; | |
369 | ||
370 | for (i = 0; i < local->hw.queues; i++) { | |
371 | if (local->queue_stop_reasons[i]) | |
372 | continue; | |
373 | ||
f6c7f03f | 374 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, *flags); |
21a5d4c3 MP |
375 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
376 | int ac; | |
377 | ||
378 | for (ac = 0; ac < n_acs; ac++) { | |
379 | int ac_queue = sdata->vif.hw_queue[ac]; | |
380 | ||
381 | if (ac_queue == i || | |
382 | sdata->vif.cab_queue == i) | |
383 | __ieee80211_wake_txqs(sdata, ac); | |
384 | } | |
385 | } | |
f6c7f03f | 386 | spin_lock_irqsave(&local->queue_stop_reason_lock, *flags); |
21a5d4c3 MP |
387 | } |
388 | ||
21a5d4c3 MP |
389 | rcu_read_unlock(); |
390 | } | |
391 | ||
da1cad73 | 392 | void ieee80211_wake_txqs(struct tasklet_struct *t) |
f6c7f03f | 393 | { |
da1cad73 AP |
394 | struct ieee80211_local *local = from_tasklet(local, t, |
395 | wake_txqs_tasklet); | |
f6c7f03f EG |
396 | unsigned long flags; |
397 | ||
398 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
399 | _ieee80211_wake_txqs(local, &flags); | |
400 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
401 | } | |
402 | ||
3a25a8c8 JB |
403 | void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue) |
404 | { | |
405 | struct ieee80211_sub_if_data *sdata; | |
a6f38ac3 JB |
406 | int n_acs = IEEE80211_NUM_ACS; |
407 | ||
80a83cfc MK |
408 | if (local->ops->wake_tx_queue) |
409 | return; | |
410 | ||
a6f38ac3 JB |
411 | if (local->hw.queues < IEEE80211_NUM_ACS) |
412 | n_acs = 1; | |
3a25a8c8 JB |
413 | |
414 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { | |
415 | int ac; | |
416 | ||
f142c6b9 JB |
417 | if (!sdata->dev) |
418 | continue; | |
419 | ||
3a25a8c8 JB |
420 | if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE && |
421 | local->queue_stop_reasons[sdata->vif.cab_queue] != 0) | |
422 | continue; | |
423 | ||
a6f38ac3 | 424 | for (ac = 0; ac < n_acs; ac++) { |
3a25a8c8 JB |
425 | int ac_queue = sdata->vif.hw_queue[ac]; |
426 | ||
427 | if (ac_queue == queue || | |
428 | (sdata->vif.cab_queue == queue && | |
429 | local->queue_stop_reasons[ac_queue] == 0 && | |
430 | skb_queue_empty(&local->pending[ac_queue]))) | |
431 | netif_wake_subqueue(sdata->dev, ac); | |
432 | } | |
433 | } | |
434 | } | |
435 | ||
ce7c9111 | 436 | static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, |
cca07b00 | 437 | enum queue_stop_reason reason, |
f6c7f03f EG |
438 | bool refcounted, |
439 | unsigned long *flags) | |
c2d1560a JB |
440 | { |
441 | struct ieee80211_local *local = hw_to_local(hw); | |
442 | ||
b5878a2d JB |
443 | trace_wake_queue(local, queue, reason); |
444 | ||
e4e72fb4 JB |
445 | if (WARN_ON(queue >= hw->queues)) |
446 | return; | |
ce7c9111 | 447 | |
ada15125 JB |
448 | if (!test_bit(reason, &local->queue_stop_reasons[queue])) |
449 | return; | |
450 | ||
856142cd | 451 | if (!refcounted) { |
cca07b00 | 452 | local->q_stop_reasons[queue][reason] = 0; |
856142cd | 453 | } else { |
cca07b00 | 454 | local->q_stop_reasons[queue][reason]--; |
856142cd JB |
455 | if (WARN_ON(local->q_stop_reasons[queue][reason] < 0)) |
456 | local->q_stop_reasons[queue][reason] = 0; | |
457 | } | |
cca07b00 LC |
458 | |
459 | if (local->q_stop_reasons[queue][reason] == 0) | |
460 | __clear_bit(reason, &local->queue_stop_reasons[queue]); | |
96f5e66e JB |
461 | |
462 | if (local->queue_stop_reasons[queue] != 0) | |
463 | /* someone still has this queue stopped */ | |
464 | return; | |
465 | ||
7236fe29 JB |
466 | if (skb_queue_empty(&local->pending[queue])) { |
467 | rcu_read_lock(); | |
3a25a8c8 | 468 | ieee80211_propagate_queue_wake(local, queue); |
7236fe29 JB |
469 | rcu_read_unlock(); |
470 | } else | |
3b8d81e0 | 471 | tasklet_schedule(&local->tx_pending_tasklet); |
21a5d4c3 | 472 | |
f6c7f03f EG |
473 | /* |
474 | * Calling _ieee80211_wake_txqs here can be a problem because it may | |
475 | * release queue_stop_reason_lock which has been taken by | |
476 | * __ieee80211_wake_queue's caller. It is certainly not very nice to | |
477 | * release someone's lock, but it is fine because all the callers of | |
478 | * __ieee80211_wake_queue call it right before releasing the lock. | |
479 | */ | |
480 | if (local->ops->wake_tx_queue) { | |
481 | if (reason == IEEE80211_QUEUE_STOP_REASON_DRIVER) | |
482 | tasklet_schedule(&local->wake_txqs_tasklet); | |
483 | else | |
484 | _ieee80211_wake_txqs(local, flags); | |
485 | } | |
c2d1560a | 486 | } |
ce7c9111 | 487 | |
96f5e66e | 488 | void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
489 | enum queue_stop_reason reason, |
490 | bool refcounted) | |
ce7c9111 KV |
491 | { |
492 | struct ieee80211_local *local = hw_to_local(hw); | |
493 | unsigned long flags; | |
494 | ||
495 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
f6c7f03f | 496 | __ieee80211_wake_queue(hw, queue, reason, refcounted, &flags); |
ce7c9111 KV |
497 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
498 | } | |
499 | ||
500 | void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue) | |
501 | { | |
502 | ieee80211_wake_queue_by_reason(hw, queue, | |
cca07b00 LC |
503 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
504 | false); | |
ce7c9111 | 505 | } |
c2d1560a JB |
506 | EXPORT_SYMBOL(ieee80211_wake_queue); |
507 | ||
ce7c9111 | 508 | static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
509 | enum queue_stop_reason reason, |
510 | bool refcounted) | |
c2d1560a JB |
511 | { |
512 | struct ieee80211_local *local = hw_to_local(hw); | |
cf0277e7 | 513 | struct ieee80211_sub_if_data *sdata; |
a6f38ac3 | 514 | int n_acs = IEEE80211_NUM_ACS; |
c2d1560a | 515 | |
b5878a2d JB |
516 | trace_stop_queue(local, queue, reason); |
517 | ||
e4e72fb4 JB |
518 | if (WARN_ON(queue >= hw->queues)) |
519 | return; | |
96f5e66e | 520 | |
cca07b00 LC |
521 | if (!refcounted) |
522 | local->q_stop_reasons[queue][reason] = 1; | |
523 | else | |
524 | local->q_stop_reasons[queue][reason]++; | |
ada15125 | 525 | |
cca07b00 LC |
526 | if (__test_and_set_bit(reason, &local->queue_stop_reasons[queue])) |
527 | return; | |
cf0277e7 | 528 | |
a6f38ac3 JB |
529 | if (local->hw.queues < IEEE80211_NUM_ACS) |
530 | n_acs = 1; | |
531 | ||
cf0277e7 | 532 | rcu_read_lock(); |
3a25a8c8 JB |
533 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
534 | int ac; | |
535 | ||
f142c6b9 JB |
536 | if (!sdata->dev) |
537 | continue; | |
538 | ||
a6f38ac3 | 539 | for (ac = 0; ac < n_acs; ac++) { |
3a25a8c8 | 540 | if (sdata->vif.hw_queue[ac] == queue || |
21a5d4c3 MP |
541 | sdata->vif.cab_queue == queue) { |
542 | if (!local->ops->wake_tx_queue) { | |
543 | netif_stop_subqueue(sdata->dev, ac); | |
544 | continue; | |
545 | } | |
546 | spin_lock(&local->fq.lock); | |
547 | sdata->vif.txqs_stopped[ac] = true; | |
548 | spin_unlock(&local->fq.lock); | |
549 | } | |
3a25a8c8 JB |
550 | } |
551 | } | |
cf0277e7 | 552 | rcu_read_unlock(); |
c2d1560a | 553 | } |
ce7c9111 | 554 | |
96f5e66e | 555 | void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
556 | enum queue_stop_reason reason, |
557 | bool refcounted) | |
ce7c9111 KV |
558 | { |
559 | struct ieee80211_local *local = hw_to_local(hw); | |
560 | unsigned long flags; | |
561 | ||
562 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
cca07b00 | 563 | __ieee80211_stop_queue(hw, queue, reason, refcounted); |
ce7c9111 KV |
564 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
565 | } | |
566 | ||
567 | void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue) | |
568 | { | |
569 | ieee80211_stop_queue_by_reason(hw, queue, | |
cca07b00 LC |
570 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
571 | false); | |
ce7c9111 | 572 | } |
c2d1560a JB |
573 | EXPORT_SYMBOL(ieee80211_stop_queue); |
574 | ||
8f77f384 JB |
575 | void ieee80211_add_pending_skb(struct ieee80211_local *local, |
576 | struct sk_buff *skb) | |
577 | { | |
578 | struct ieee80211_hw *hw = &local->hw; | |
579 | unsigned long flags; | |
a7bc376c | 580 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
3a25a8c8 | 581 | int queue = info->hw_queue; |
a7bc376c JB |
582 | |
583 | if (WARN_ON(!info->control.vif)) { | |
d4fa14cd | 584 | ieee80211_free_txskb(&local->hw, skb); |
a7bc376c JB |
585 | return; |
586 | } | |
8f77f384 JB |
587 | |
588 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
cca07b00 LC |
589 | __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
590 | false); | |
3b8d81e0 | 591 | __skb_queue_tail(&local->pending[queue], skb); |
cca07b00 | 592 | __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
f6c7f03f | 593 | false, &flags); |
8f77f384 JB |
594 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
595 | } | |
596 | ||
e3685e03 JB |
597 | void ieee80211_add_pending_skbs(struct ieee80211_local *local, |
598 | struct sk_buff_head *skbs) | |
8f77f384 JB |
599 | { |
600 | struct ieee80211_hw *hw = &local->hw; | |
601 | struct sk_buff *skb; | |
602 | unsigned long flags; | |
b0b97a8a | 603 | int queue, i; |
8f77f384 JB |
604 | |
605 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
8f77f384 | 606 | while ((skb = skb_dequeue(skbs))) { |
a7bc376c JB |
607 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
608 | ||
609 | if (WARN_ON(!info->control.vif)) { | |
d4fa14cd | 610 | ieee80211_free_txskb(&local->hw, skb); |
a7bc376c JB |
611 | continue; |
612 | } | |
613 | ||
3a25a8c8 | 614 | queue = info->hw_queue; |
4644ae89 JB |
615 | |
616 | __ieee80211_stop_queue(hw, queue, | |
cca07b00 LC |
617 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
618 | false); | |
4644ae89 | 619 | |
3b8d81e0 | 620 | __skb_queue_tail(&local->pending[queue], skb); |
8f77f384 JB |
621 | } |
622 | ||
3b8d81e0 | 623 | for (i = 0; i < hw->queues; i++) |
8f77f384 | 624 | __ieee80211_wake_queue(hw, i, |
cca07b00 | 625 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
f6c7f03f | 626 | false, &flags); |
8f77f384 | 627 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
8f77f384 JB |
628 | } |
629 | ||
ce7c9111 | 630 | void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, |
445ea4e8 | 631 | unsigned long queues, |
cca07b00 LC |
632 | enum queue_stop_reason reason, |
633 | bool refcounted) | |
c2d1560a | 634 | { |
ce7c9111 KV |
635 | struct ieee80211_local *local = hw_to_local(hw); |
636 | unsigned long flags; | |
c2d1560a JB |
637 | int i; |
638 | ||
ce7c9111 KV |
639 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
640 | ||
445ea4e8 | 641 | for_each_set_bit(i, &queues, hw->queues) |
cca07b00 | 642 | __ieee80211_stop_queue(hw, i, reason, refcounted); |
ce7c9111 KV |
643 | |
644 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
645 | } | |
646 | ||
647 | void ieee80211_stop_queues(struct ieee80211_hw *hw) | |
648 | { | |
445ea4e8 | 649 | ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
650 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
651 | false); | |
c2d1560a JB |
652 | } |
653 | EXPORT_SYMBOL(ieee80211_stop_queues); | |
654 | ||
92ab8535 TW |
655 | int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue) |
656 | { | |
657 | struct ieee80211_local *local = hw_to_local(hw); | |
3b8d81e0 JB |
658 | unsigned long flags; |
659 | int ret; | |
96f5e66e | 660 | |
e4e72fb4 JB |
661 | if (WARN_ON(queue >= hw->queues)) |
662 | return true; | |
96f5e66e | 663 | |
3b8d81e0 | 664 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
2419ea14 TP |
665 | ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER, |
666 | &local->queue_stop_reasons[queue]); | |
3b8d81e0 JB |
667 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
668 | return ret; | |
92ab8535 TW |
669 | } |
670 | EXPORT_SYMBOL(ieee80211_queue_stopped); | |
671 | ||
ce7c9111 | 672 | void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, |
445ea4e8 | 673 | unsigned long queues, |
cca07b00 LC |
674 | enum queue_stop_reason reason, |
675 | bool refcounted) | |
c2d1560a | 676 | { |
ce7c9111 KV |
677 | struct ieee80211_local *local = hw_to_local(hw); |
678 | unsigned long flags; | |
c2d1560a JB |
679 | int i; |
680 | ||
ce7c9111 KV |
681 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
682 | ||
445ea4e8 | 683 | for_each_set_bit(i, &queues, hw->queues) |
f6c7f03f | 684 | __ieee80211_wake_queue(hw, i, reason, refcounted, &flags); |
ce7c9111 KV |
685 | |
686 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
687 | } | |
688 | ||
689 | void ieee80211_wake_queues(struct ieee80211_hw *hw) | |
690 | { | |
445ea4e8 | 691 | ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
692 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
693 | false); | |
c2d1560a JB |
694 | } |
695 | EXPORT_SYMBOL(ieee80211_wake_queues); | |
dabeb344 | 696 | |
26da23b6 LC |
697 | static unsigned int |
698 | ieee80211_get_vif_queues(struct ieee80211_local *local, | |
699 | struct ieee80211_sub_if_data *sdata) | |
39ecc01d | 700 | { |
26da23b6 | 701 | unsigned int queues; |
39ecc01d | 702 | |
30686bf7 | 703 | if (sdata && ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) { |
39ecc01d JB |
704 | int ac; |
705 | ||
706 | queues = 0; | |
707 | ||
708 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
709 | queues |= BIT(sdata->vif.hw_queue[ac]); | |
710 | if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE) | |
711 | queues |= BIT(sdata->vif.cab_queue); | |
712 | } else { | |
713 | /* all queues */ | |
714 | queues = BIT(local->hw.queues) - 1; | |
715 | } | |
716 | ||
26da23b6 LC |
717 | return queues; |
718 | } | |
719 | ||
4f9610d5 LK |
720 | void __ieee80211_flush_queues(struct ieee80211_local *local, |
721 | struct ieee80211_sub_if_data *sdata, | |
3b24f4c6 | 722 | unsigned int queues, bool drop) |
26da23b6 | 723 | { |
26da23b6 LC |
724 | if (!local->ops->flush) |
725 | return; | |
726 | ||
4f9610d5 LK |
727 | /* |
728 | * If no queue was set, or if the HW doesn't support | |
729 | * IEEE80211_HW_QUEUE_CONTROL - flush all queues | |
730 | */ | |
30686bf7 | 731 | if (!queues || !ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) |
4f9610d5 | 732 | queues = ieee80211_get_vif_queues(local, sdata); |
26da23b6 | 733 | |
59f48fe2 | 734 | ieee80211_stop_queues_by_reason(&local->hw, queues, |
cca07b00 LC |
735 | IEEE80211_QUEUE_STOP_REASON_FLUSH, |
736 | false); | |
445ea4e8 | 737 | |
3b24f4c6 | 738 | drv_flush(local, sdata, queues, drop); |
445ea4e8 | 739 | |
59f48fe2 | 740 | ieee80211_wake_queues_by_reason(&local->hw, queues, |
cca07b00 LC |
741 | IEEE80211_QUEUE_STOP_REASON_FLUSH, |
742 | false); | |
39ecc01d JB |
743 | } |
744 | ||
4f9610d5 | 745 | void ieee80211_flush_queues(struct ieee80211_local *local, |
3b24f4c6 | 746 | struct ieee80211_sub_if_data *sdata, bool drop) |
4f9610d5 | 747 | { |
3b24f4c6 | 748 | __ieee80211_flush_queues(local, sdata, 0, drop); |
4f9610d5 LK |
749 | } |
750 | ||
26da23b6 LC |
751 | void ieee80211_stop_vif_queues(struct ieee80211_local *local, |
752 | struct ieee80211_sub_if_data *sdata, | |
753 | enum queue_stop_reason reason) | |
754 | { | |
755 | ieee80211_stop_queues_by_reason(&local->hw, | |
756 | ieee80211_get_vif_queues(local, sdata), | |
757 | reason, true); | |
758 | } | |
759 | ||
760 | void ieee80211_wake_vif_queues(struct ieee80211_local *local, | |
761 | struct ieee80211_sub_if_data *sdata, | |
762 | enum queue_stop_reason reason) | |
763 | { | |
764 | ieee80211_wake_queues_by_reason(&local->hw, | |
765 | ieee80211_get_vif_queues(local, sdata), | |
766 | reason, true); | |
767 | } | |
768 | ||
3384d757 AN |
769 | static void __iterate_interfaces(struct ieee80211_local *local, |
770 | u32 iter_flags, | |
771 | void (*iterator)(void *data, u8 *mac, | |
772 | struct ieee80211_vif *vif), | |
773 | void *data) | |
dabeb344 | 774 | { |
dabeb344 | 775 | struct ieee80211_sub_if_data *sdata; |
3384d757 | 776 | bool active_only = iter_flags & IEEE80211_IFACE_ITER_ACTIVE; |
dabeb344 | 777 | |
c7c71066 | 778 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
2f561feb | 779 | switch (sdata->vif.type) { |
05c914fe | 780 | case NL80211_IFTYPE_MONITOR: |
d8212184 | 781 | if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE)) |
31eba5bc FF |
782 | continue; |
783 | break; | |
05c914fe | 784 | case NL80211_IFTYPE_AP_VLAN: |
2f561feb | 785 | continue; |
2ca27bcf | 786 | default: |
2f561feb ID |
787 | break; |
788 | } | |
8b2c9824 | 789 | if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) && |
3384d757 | 790 | active_only && !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) |
8b2c9824 | 791 | continue; |
265a0708 BG |
792 | if ((iter_flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) && |
793 | !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) | |
794 | continue; | |
3384d757 | 795 | if (ieee80211_sdata_running(sdata) || !active_only) |
47846c9b | 796 | iterator(data, sdata->vif.addr, |
2f561feb ID |
797 | &sdata->vif); |
798 | } | |
799 | ||
c7c71066 JB |
800 | sdata = rcu_dereference_check(local->monitor_sdata, |
801 | lockdep_is_held(&local->iflist_mtx) || | |
6dd23603 | 802 | lockdep_is_held(&local->hw.wiphy->mtx)); |
8b2c9824 | 803 | if (sdata && |
3384d757 | 804 | (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || !active_only || |
8b2c9824 | 805 | sdata->flags & IEEE80211_SDATA_IN_DRIVER)) |
685fb72b | 806 | iterator(data, sdata->vif.addr, &sdata->vif); |
c7c71066 | 807 | } |
685fb72b | 808 | |
3384d757 | 809 | void ieee80211_iterate_interfaces( |
c7c71066 JB |
810 | struct ieee80211_hw *hw, u32 iter_flags, |
811 | void (*iterator)(void *data, u8 *mac, | |
812 | struct ieee80211_vif *vif), | |
813 | void *data) | |
814 | { | |
815 | struct ieee80211_local *local = hw_to_local(hw); | |
816 | ||
817 | mutex_lock(&local->iflist_mtx); | |
3384d757 | 818 | __iterate_interfaces(local, iter_flags, iterator, data); |
c771c9d8 | 819 | mutex_unlock(&local->iflist_mtx); |
2f561feb | 820 | } |
3384d757 | 821 | EXPORT_SYMBOL_GPL(ieee80211_iterate_interfaces); |
2f561feb ID |
822 | |
823 | void ieee80211_iterate_active_interfaces_atomic( | |
8b2c9824 | 824 | struct ieee80211_hw *hw, u32 iter_flags, |
2f561feb ID |
825 | void (*iterator)(void *data, u8 *mac, |
826 | struct ieee80211_vif *vif), | |
827 | void *data) | |
828 | { | |
829 | struct ieee80211_local *local = hw_to_local(hw); | |
2f561feb | 830 | |
e38bad47 | 831 | rcu_read_lock(); |
3384d757 AN |
832 | __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, |
833 | iterator, data); | |
c7c71066 JB |
834 | rcu_read_unlock(); |
835 | } | |
836 | EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic); | |
dabeb344 | 837 | |
a05829a7 | 838 | void ieee80211_iterate_active_interfaces_mtx( |
c7c71066 JB |
839 | struct ieee80211_hw *hw, u32 iter_flags, |
840 | void (*iterator)(void *data, u8 *mac, | |
841 | struct ieee80211_vif *vif), | |
842 | void *data) | |
843 | { | |
844 | struct ieee80211_local *local = hw_to_local(hw); | |
e38bad47 | 845 | |
a05829a7 | 846 | lockdep_assert_wiphy(hw->wiphy); |
685fb72b | 847 | |
3384d757 AN |
848 | __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, |
849 | iterator, data); | |
dabeb344 | 850 | } |
a05829a7 | 851 | EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_mtx); |
37ffc8da | 852 | |
0fc1e049 AN |
853 | static void __iterate_stations(struct ieee80211_local *local, |
854 | void (*iterator)(void *data, | |
855 | struct ieee80211_sta *sta), | |
856 | void *data) | |
857 | { | |
858 | struct sta_info *sta; | |
859 | ||
860 | list_for_each_entry_rcu(sta, &local->sta_list, list) { | |
861 | if (!sta->uploaded) | |
862 | continue; | |
863 | ||
864 | iterator(data, &sta->sta); | |
865 | } | |
866 | } | |
867 | ||
acb99b9b MB |
868 | void ieee80211_iterate_stations(struct ieee80211_hw *hw, |
869 | void (*iterator)(void *data, | |
870 | struct ieee80211_sta *sta), | |
871 | void *data) | |
872 | { | |
873 | struct ieee80211_local *local = hw_to_local(hw); | |
874 | ||
875 | mutex_lock(&local->sta_mtx); | |
876 | __iterate_stations(local, iterator, data); | |
877 | mutex_unlock(&local->sta_mtx); | |
878 | } | |
879 | EXPORT_SYMBOL_GPL(ieee80211_iterate_stations); | |
880 | ||
0fc1e049 AN |
881 | void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, |
882 | void (*iterator)(void *data, | |
883 | struct ieee80211_sta *sta), | |
884 | void *data) | |
885 | { | |
886 | struct ieee80211_local *local = hw_to_local(hw); | |
887 | ||
888 | rcu_read_lock(); | |
889 | __iterate_stations(local, iterator, data); | |
890 | rcu_read_unlock(); | |
891 | } | |
892 | EXPORT_SYMBOL_GPL(ieee80211_iterate_stations_atomic); | |
893 | ||
ad7e718c JB |
894 | struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev) |
895 | { | |
896 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); | |
897 | ||
898 | if (!ieee80211_sdata_running(sdata) || | |
899 | !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) | |
900 | return NULL; | |
901 | return &sdata->vif; | |
902 | } | |
903 | EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif); | |
904 | ||
dc5a1ad7 EG |
905 | struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif) |
906 | { | |
6513e98e JB |
907 | if (!vif) |
908 | return NULL; | |
909 | ||
f30386a8 | 910 | return &vif_to_sdata(vif)->wdev; |
dc5a1ad7 EG |
911 | } |
912 | EXPORT_SYMBOL_GPL(ieee80211_vif_to_wdev); | |
913 | ||
42935eca LR |
914 | /* |
915 | * Nothing should have been stuffed into the workqueue during | |
4afaff17 EG |
916 | * the suspend->resume cycle. Since we can't check each caller |
917 | * of this function if we are already quiescing / suspended, | |
918 | * check here and don't WARN since this can actually happen when | |
919 | * the rx path (for example) is racing against __ieee80211_suspend | |
920 | * and suspending / quiescing was set after the rx path checked | |
921 | * them. | |
42935eca LR |
922 | */ |
923 | static bool ieee80211_can_queue_work(struct ieee80211_local *local) | |
924 | { | |
4afaff17 EG |
925 | if (local->quiescing || (local->suspended && !local->resuming)) { |
926 | pr_warn("queueing ieee80211 work while going to suspend\n"); | |
ceb99fe0 | 927 | return false; |
4afaff17 | 928 | } |
42935eca LR |
929 | |
930 | return true; | |
931 | } | |
932 | ||
933 | void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work) | |
934 | { | |
935 | struct ieee80211_local *local = hw_to_local(hw); | |
936 | ||
937 | if (!ieee80211_can_queue_work(local)) | |
938 | return; | |
939 | ||
940 | queue_work(local->workqueue, work); | |
941 | } | |
942 | EXPORT_SYMBOL(ieee80211_queue_work); | |
943 | ||
944 | void ieee80211_queue_delayed_work(struct ieee80211_hw *hw, | |
945 | struct delayed_work *dwork, | |
946 | unsigned long delay) | |
947 | { | |
948 | struct ieee80211_local *local = hw_to_local(hw); | |
949 | ||
950 | if (!ieee80211_can_queue_work(local)) | |
951 | return; | |
952 | ||
953 | queue_delayed_work(local->workqueue, dwork, delay); | |
954 | } | |
955 | EXPORT_SYMBOL(ieee80211_queue_delayed_work); | |
956 | ||
ea5cba26 JB |
957 | static void |
958 | ieee80211_parse_extension_element(u32 *crc, | |
959 | const struct element *elem, | |
960 | struct ieee802_11_elems *elems, | |
961 | struct ieee80211_elems_parse_params *params) | |
e4d005b8 JB |
962 | { |
963 | const void *data = elem->data + 1; | |
768c0b19 JB |
964 | u8 len; |
965 | ||
966 | if (!elem->datalen) | |
967 | return; | |
968 | ||
969 | len = elem->datalen - 1; | |
e4d005b8 JB |
970 | |
971 | switch (elem->data[0]) { | |
972 | case WLAN_EID_EXT_HE_MU_EDCA: | |
652e8363 | 973 | if (len >= sizeof(*elems->mu_edca_param_set)) { |
e4d005b8 JB |
974 | elems->mu_edca_param_set = data; |
975 | if (crc) | |
976 | *crc = crc32_be(*crc, (void *)elem, | |
977 | elem->datalen + 2); | |
978 | } | |
979 | break; | |
980 | case WLAN_EID_EXT_HE_CAPABILITY: | |
bd4e4d62 JB |
981 | if (ieee80211_he_capa_size_ok(data, len)) { |
982 | elems->he_cap = data; | |
983 | elems->he_cap_len = len; | |
984 | } | |
e4d005b8 JB |
985 | break; |
986 | case WLAN_EID_EXT_HE_OPERATION: | |
987 | if (len >= sizeof(*elems->he_operation) && | |
0f7e90fa | 988 | len >= ieee80211_he_oper_size(data) - 1) { |
660d81da JB |
989 | if (crc) |
990 | *crc = crc32_be(*crc, (void *)elem, | |
991 | elem->datalen + 2); | |
e4d005b8 | 992 | elems->he_operation = data; |
660d81da | 993 | } |
e4d005b8 JB |
994 | break; |
995 | case WLAN_EID_EXT_UORA: | |
652e8363 | 996 | if (len >= 1) |
e4d005b8 JB |
997 | elems->uora_element = data; |
998 | break; | |
999 | case WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME: | |
1000 | if (len == 3) | |
1001 | elems->max_channel_switch_time = data; | |
1002 | break; | |
1003 | case WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION: | |
652e8363 | 1004 | if (len >= sizeof(*elems->mbssid_config_ie)) |
e4d005b8 JB |
1005 | elems->mbssid_config_ie = data; |
1006 | break; | |
1007 | case WLAN_EID_EXT_HE_SPR: | |
1008 | if (len >= sizeof(*elems->he_spr) && | |
1009 | len >= ieee80211_he_spr_size(data)) | |
1010 | elems->he_spr = data; | |
1011 | break; | |
a6cf28e0 | 1012 | case WLAN_EID_EXT_HE_6GHZ_CAPA: |
652e8363 | 1013 | if (len >= sizeof(*elems->he_6ghz_capa)) |
a6cf28e0 RM |
1014 | elems->he_6ghz_capa = data; |
1015 | break; | |
f0e6bea8 IP |
1016 | case WLAN_EID_EXT_EHT_CAPABILITY: |
1017 | if (ieee80211_eht_capa_size_ok(elems->he_cap, | |
ea5cba26 JB |
1018 | data, len, |
1019 | params->from_ap)) { | |
f0e6bea8 IP |
1020 | elems->eht_cap = data; |
1021 | elems->eht_cap_len = len; | |
1022 | } | |
1023 | break; | |
1024 | case WLAN_EID_EXT_EHT_OPERATION: | |
1025 | if (ieee80211_eht_oper_size_ok(data, len)) | |
1026 | elems->eht_operation = data; | |
1027 | break; | |
425f4b5f JB |
1028 | case WLAN_EID_EXT_EHT_MULTI_LINK: |
1029 | if (ieee80211_mle_size_ok(data, len)) | |
1030 | elems->multi_link = (void *)data; | |
1031 | break; | |
e4d005b8 JB |
1032 | } |
1033 | } | |
1034 | ||
78ac51f8 | 1035 | static u32 |
fd17bf04 JB |
1036 | _ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params, |
1037 | struct ieee802_11_elems *elems, | |
1038 | const struct element *check_inherit) | |
dd76986b | 1039 | { |
671042a4 | 1040 | const struct element *elem; |
fd17bf04 | 1041 | bool calc_crc = params->filter != 0; |
fcff4f10 | 1042 | DECLARE_BITMAP(seen_elems, 256); |
fd17bf04 | 1043 | u32 crc = params->crc; |
b2e506bf | 1044 | const u8 *ie; |
dd76986b | 1045 | |
fcff4f10 | 1046 | bitmap_zero(seen_elems, 256); |
dd76986b | 1047 | |
fd17bf04 | 1048 | for_each_element(elem, params->start, params->len) { |
fcff4f10 | 1049 | bool elem_parse_failed; |
c17e28d1 JB |
1050 | u8 id = elem->id; |
1051 | u8 elen = elem->datalen; | |
1052 | const u8 *pos = elem->data; | |
fcff4f10 | 1053 | |
671042a4 SS |
1054 | if (check_inherit && |
1055 | !cfg80211_is_element_inherited(elem, | |
1056 | check_inherit)) | |
1057 | continue; | |
1058 | ||
9690fb16 JB |
1059 | switch (id) { |
1060 | case WLAN_EID_SSID: | |
1061 | case WLAN_EID_SUPP_RATES: | |
1062 | case WLAN_EID_FH_PARAMS: | |
1063 | case WLAN_EID_DS_PARAMS: | |
1064 | case WLAN_EID_CF_PARAMS: | |
1065 | case WLAN_EID_TIM: | |
1066 | case WLAN_EID_IBSS_PARAMS: | |
1067 | case WLAN_EID_CHALLENGE: | |
1068 | case WLAN_EID_RSN: | |
1069 | case WLAN_EID_ERP_INFO: | |
1070 | case WLAN_EID_EXT_SUPP_RATES: | |
1071 | case WLAN_EID_HT_CAPABILITY: | |
1072 | case WLAN_EID_HT_OPERATION: | |
1073 | case WLAN_EID_VHT_CAPABILITY: | |
1074 | case WLAN_EID_VHT_OPERATION: | |
1075 | case WLAN_EID_MESH_ID: | |
1076 | case WLAN_EID_MESH_CONFIG: | |
1077 | case WLAN_EID_PEER_MGMT: | |
1078 | case WLAN_EID_PREQ: | |
1079 | case WLAN_EID_PREP: | |
1080 | case WLAN_EID_PERR: | |
1081 | case WLAN_EID_RANN: | |
1082 | case WLAN_EID_CHANNEL_SWITCH: | |
1083 | case WLAN_EID_EXT_CHANSWITCH_ANN: | |
1084 | case WLAN_EID_COUNTRY: | |
1085 | case WLAN_EID_PWR_CONSTRAINT: | |
1086 | case WLAN_EID_TIMEOUT_INTERVAL: | |
85220d71 | 1087 | case WLAN_EID_SECONDARY_CHANNEL_OFFSET: |
b2e506bf | 1088 | case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: |
8f2535b9 | 1089 | case WLAN_EID_CHAN_SWITCH_PARAM: |
9041c1fa | 1090 | case WLAN_EID_EXT_CAPABILITY: |
53837584 AN |
1091 | case WLAN_EID_CHAN_SWITCH_TIMING: |
1092 | case WLAN_EID_LINK_ID: | |
e38a017b | 1093 | case WLAN_EID_BSS_MAX_IDLE_PERIOD: |
c0058df7 | 1094 | case WLAN_EID_RSNX: |
cd418ba6 TP |
1095 | case WLAN_EID_S1G_BCN_COMPAT: |
1096 | case WLAN_EID_S1G_CAPABILITIES: | |
1097 | case WLAN_EID_S1G_OPERATION: | |
1d00ce80 | 1098 | case WLAN_EID_AID_RESPONSE: |
cd418ba6 | 1099 | case WLAN_EID_S1G_SHORT_BCN_INTERVAL: |
b2e506bf JB |
1100 | /* |
1101 | * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible | |
1102 | * that if the content gets bigger it might be needed more than once | |
1103 | */ | |
9690fb16 JB |
1104 | if (test_bit(id, seen_elems)) { |
1105 | elems->parse_error = true; | |
9690fb16 JB |
1106 | continue; |
1107 | } | |
1108 | break; | |
fcff4f10 | 1109 | } |
dd76986b | 1110 | |
fd17bf04 | 1111 | if (calc_crc && id < 64 && (params->filter & (1ULL << id))) |
dd76986b JB |
1112 | crc = crc32_be(crc, pos - 2, elen + 2); |
1113 | ||
fcff4f10 PS |
1114 | elem_parse_failed = false; |
1115 | ||
dd76986b | 1116 | switch (id) { |
53837584 | 1117 | case WLAN_EID_LINK_ID: |
652e8363 | 1118 | if (elen + 2 < sizeof(struct ieee80211_tdls_lnkie)) { |
53837584 AN |
1119 | elem_parse_failed = true; |
1120 | break; | |
1121 | } | |
1122 | elems->lnk_id = (void *)(pos - 2); | |
1123 | break; | |
1124 | case WLAN_EID_CHAN_SWITCH_TIMING: | |
652e8363 | 1125 | if (elen < sizeof(struct ieee80211_ch_switch_timing)) { |
53837584 AN |
1126 | elem_parse_failed = true; |
1127 | break; | |
1128 | } | |
1129 | elems->ch_sw_timing = (void *)pos; | |
1130 | break; | |
9041c1fa AN |
1131 | case WLAN_EID_EXT_CAPABILITY: |
1132 | elems->ext_capab = pos; | |
1133 | elems->ext_capab_len = elen; | |
1134 | break; | |
dd76986b JB |
1135 | case WLAN_EID_SSID: |
1136 | elems->ssid = pos; | |
1137 | elems->ssid_len = elen; | |
1138 | break; | |
1139 | case WLAN_EID_SUPP_RATES: | |
1140 | elems->supp_rates = pos; | |
1141 | elems->supp_rates_len = elen; | |
1142 | break; | |
dd76986b | 1143 | case WLAN_EID_DS_PARAMS: |
1cd8e88e JB |
1144 | if (elen >= 1) |
1145 | elems->ds_params = pos; | |
1146 | else | |
1147 | elem_parse_failed = true; | |
dd76986b | 1148 | break; |
dd76986b JB |
1149 | case WLAN_EID_TIM: |
1150 | if (elen >= sizeof(struct ieee80211_tim_ie)) { | |
1151 | elems->tim = (void *)pos; | |
1152 | elems->tim_len = elen; | |
fcff4f10 PS |
1153 | } else |
1154 | elem_parse_failed = true; | |
dd76986b | 1155 | break; |
dd76986b JB |
1156 | case WLAN_EID_VENDOR_SPECIFIC: |
1157 | if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && | |
1158 | pos[2] == 0xf2) { | |
1159 | /* Microsoft OUI (00:50:F2) */ | |
1160 | ||
1161 | if (calc_crc) | |
1162 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1163 | ||
441a33ba | 1164 | if (elen >= 5 && pos[3] == 2) { |
dd76986b JB |
1165 | /* OUI Type 2 - WMM IE */ |
1166 | if (pos[4] == 0) { | |
1167 | elems->wmm_info = pos; | |
1168 | elems->wmm_info_len = elen; | |
1169 | } else if (pos[4] == 1) { | |
1170 | elems->wmm_param = pos; | |
1171 | elems->wmm_param_len = elen; | |
1172 | } | |
1173 | } | |
1174 | } | |
1175 | break; | |
1176 | case WLAN_EID_RSN: | |
1177 | elems->rsn = pos; | |
1178 | elems->rsn_len = elen; | |
1179 | break; | |
1180 | case WLAN_EID_ERP_INFO: | |
1946bed9 JB |
1181 | if (elen >= 1) |
1182 | elems->erp_info = pos; | |
1183 | else | |
1184 | elem_parse_failed = true; | |
dd76986b JB |
1185 | break; |
1186 | case WLAN_EID_EXT_SUPP_RATES: | |
1187 | elems->ext_supp_rates = pos; | |
1188 | elems->ext_supp_rates_len = elen; | |
1189 | break; | |
1190 | case WLAN_EID_HT_CAPABILITY: | |
1191 | if (elen >= sizeof(struct ieee80211_ht_cap)) | |
1192 | elems->ht_cap_elem = (void *)pos; | |
fcff4f10 PS |
1193 | else |
1194 | elem_parse_failed = true; | |
dd76986b | 1195 | break; |
074d46d1 JB |
1196 | case WLAN_EID_HT_OPERATION: |
1197 | if (elen >= sizeof(struct ieee80211_ht_operation)) | |
1198 | elems->ht_operation = (void *)pos; | |
fcff4f10 PS |
1199 | else |
1200 | elem_parse_failed = true; | |
dd76986b | 1201 | break; |
818255ea MP |
1202 | case WLAN_EID_VHT_CAPABILITY: |
1203 | if (elen >= sizeof(struct ieee80211_vht_cap)) | |
1204 | elems->vht_cap_elem = (void *)pos; | |
1205 | else | |
1206 | elem_parse_failed = true; | |
1207 | break; | |
1208 | case WLAN_EID_VHT_OPERATION: | |
a04564c9 | 1209 | if (elen >= sizeof(struct ieee80211_vht_operation)) { |
818255ea | 1210 | elems->vht_operation = (void *)pos; |
a04564c9 JB |
1211 | if (calc_crc) |
1212 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1213 | break; | |
1214 | } | |
1215 | elem_parse_failed = true; | |
818255ea | 1216 | break; |
bee7f586 | 1217 | case WLAN_EID_OPMODE_NOTIF: |
a04564c9 | 1218 | if (elen > 0) { |
bee7f586 | 1219 | elems->opmode_notif = pos; |
a04564c9 JB |
1220 | if (calc_crc) |
1221 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1222 | break; | |
1223 | } | |
1224 | elem_parse_failed = true; | |
bee7f586 | 1225 | break; |
dd76986b JB |
1226 | case WLAN_EID_MESH_ID: |
1227 | elems->mesh_id = pos; | |
1228 | elems->mesh_id_len = elen; | |
1229 | break; | |
1230 | case WLAN_EID_MESH_CONFIG: | |
1231 | if (elen >= sizeof(struct ieee80211_meshconf_ie)) | |
1232 | elems->mesh_config = (void *)pos; | |
fcff4f10 PS |
1233 | else |
1234 | elem_parse_failed = true; | |
dd76986b JB |
1235 | break; |
1236 | case WLAN_EID_PEER_MGMT: | |
1237 | elems->peering = pos; | |
1238 | elems->peering_len = elen; | |
1239 | break; | |
3f52b7e3 MP |
1240 | case WLAN_EID_MESH_AWAKE_WINDOW: |
1241 | if (elen >= 2) | |
1242 | elems->awake_window = (void *)pos; | |
1243 | break; | |
dd76986b JB |
1244 | case WLAN_EID_PREQ: |
1245 | elems->preq = pos; | |
1246 | elems->preq_len = elen; | |
1247 | break; | |
1248 | case WLAN_EID_PREP: | |
1249 | elems->prep = pos; | |
1250 | elems->prep_len = elen; | |
1251 | break; | |
1252 | case WLAN_EID_PERR: | |
1253 | elems->perr = pos; | |
1254 | elems->perr_len = elen; | |
1255 | break; | |
1256 | case WLAN_EID_RANN: | |
1257 | if (elen >= sizeof(struct ieee80211_rann_ie)) | |
1258 | elems->rann = (void *)pos; | |
fcff4f10 PS |
1259 | else |
1260 | elem_parse_failed = true; | |
dd76986b JB |
1261 | break; |
1262 | case WLAN_EID_CHANNEL_SWITCH: | |
5bc1420b JB |
1263 | if (elen != sizeof(struct ieee80211_channel_sw_ie)) { |
1264 | elem_parse_failed = true; | |
1265 | break; | |
1266 | } | |
1267 | elems->ch_switch_ie = (void *)pos; | |
dd76986b | 1268 | break; |
b4f286a1 JB |
1269 | case WLAN_EID_EXT_CHANSWITCH_ANN: |
1270 | if (elen != sizeof(struct ieee80211_ext_chansw_ie)) { | |
1271 | elem_parse_failed = true; | |
1272 | break; | |
1273 | } | |
1274 | elems->ext_chansw_ie = (void *)pos; | |
1275 | break; | |
85220d71 JB |
1276 | case WLAN_EID_SECONDARY_CHANNEL_OFFSET: |
1277 | if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) { | |
1278 | elem_parse_failed = true; | |
1279 | break; | |
1280 | } | |
1281 | elems->sec_chan_offs = (void *)pos; | |
1282 | break; | |
8f2535b9 | 1283 | case WLAN_EID_CHAN_SWITCH_PARAM: |
652e8363 | 1284 | if (elen < |
8f2535b9 CYY |
1285 | sizeof(*elems->mesh_chansw_params_ie)) { |
1286 | elem_parse_failed = true; | |
1287 | break; | |
1288 | } | |
1289 | elems->mesh_chansw_params_ie = (void *)pos; | |
1290 | break; | |
b2e506bf | 1291 | case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: |
fd17bf04 | 1292 | if (!params->action || |
652e8363 | 1293 | elen < sizeof(*elems->wide_bw_chansw_ie)) { |
b2e506bf JB |
1294 | elem_parse_failed = true; |
1295 | break; | |
1296 | } | |
1297 | elems->wide_bw_chansw_ie = (void *)pos; | |
1298 | break; | |
1299 | case WLAN_EID_CHANNEL_SWITCH_WRAPPER: | |
fd17bf04 | 1300 | if (params->action) { |
b2e506bf JB |
1301 | elem_parse_failed = true; |
1302 | break; | |
1303 | } | |
1304 | /* | |
1305 | * This is a bit tricky, but as we only care about | |
1306 | * the wide bandwidth channel switch element, so | |
1307 | * just parse it out manually. | |
1308 | */ | |
1309 | ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, | |
1310 | pos, elen); | |
1311 | if (ie) { | |
652e8363 | 1312 | if (ie[1] >= sizeof(*elems->wide_bw_chansw_ie)) |
b2e506bf JB |
1313 | elems->wide_bw_chansw_ie = |
1314 | (void *)(ie + 2); | |
1315 | else | |
1316 | elem_parse_failed = true; | |
1317 | } | |
1318 | break; | |
dd76986b JB |
1319 | case WLAN_EID_COUNTRY: |
1320 | elems->country_elem = pos; | |
1321 | elems->country_elem_len = elen; | |
1322 | break; | |
1323 | case WLAN_EID_PWR_CONSTRAINT: | |
761a48d2 JB |
1324 | if (elen != 1) { |
1325 | elem_parse_failed = true; | |
1326 | break; | |
1327 | } | |
dd76986b | 1328 | elems->pwr_constr_elem = pos; |
dd76986b | 1329 | break; |
c8d65917 SG |
1330 | case WLAN_EID_CISCO_VENDOR_SPECIFIC: |
1331 | /* Lots of different options exist, but we only care | |
1332 | * about the Dynamic Transmit Power Control element. | |
1333 | * First check for the Cisco OUI, then for the DTPC | |
1334 | * tag (0x00). | |
1335 | */ | |
1336 | if (elen < 4) { | |
1337 | elem_parse_failed = true; | |
1338 | break; | |
1339 | } | |
1340 | ||
1341 | if (pos[0] != 0x00 || pos[1] != 0x40 || | |
1342 | pos[2] != 0x96 || pos[3] != 0x00) | |
1343 | break; | |
1344 | ||
1345 | if (elen != 6) { | |
1346 | elem_parse_failed = true; | |
1347 | break; | |
1348 | } | |
1349 | ||
1350 | if (calc_crc) | |
1351 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1352 | ||
1353 | elems->cisco_dtpc_elem = pos; | |
1354 | break; | |
2aa485e1 | 1355 | case WLAN_EID_ADDBA_EXT: |
652e8363 | 1356 | if (elen < sizeof(struct ieee80211_addba_ext_ie)) { |
2aa485e1 JC |
1357 | elem_parse_failed = true; |
1358 | break; | |
1359 | } | |
1360 | elems->addba_ext_ie = (void *)pos; | |
1361 | break; | |
dd76986b | 1362 | case WLAN_EID_TIMEOUT_INTERVAL: |
79ba1d89 JB |
1363 | if (elen >= sizeof(struct ieee80211_timeout_interval_ie)) |
1364 | elems->timeout_int = (void *)pos; | |
1365 | else | |
1366 | elem_parse_failed = true; | |
dd76986b | 1367 | break; |
e38a017b AS |
1368 | case WLAN_EID_BSS_MAX_IDLE_PERIOD: |
1369 | if (elen >= sizeof(*elems->max_idle_period_ie)) | |
1370 | elems->max_idle_period_ie = (void *)pos; | |
1371 | break; | |
c0058df7 ST |
1372 | case WLAN_EID_RSNX: |
1373 | elems->rsnx = pos; | |
1374 | elems->rsnx_len = elen; | |
1375 | break; | |
b0345850 WG |
1376 | case WLAN_EID_TX_POWER_ENVELOPE: |
1377 | if (elen < 1 || | |
1378 | elen > sizeof(struct ieee80211_tx_pwr_env)) | |
1379 | break; | |
1380 | ||
1381 | if (elems->tx_pwr_env_num >= ARRAY_SIZE(elems->tx_pwr_env)) | |
1382 | break; | |
1383 | ||
1384 | elems->tx_pwr_env[elems->tx_pwr_env_num] = (void *)pos; | |
1385 | elems->tx_pwr_env_len[elems->tx_pwr_env_num] = elen; | |
1386 | elems->tx_pwr_env_num++; | |
1387 | break; | |
41cbb0f5 | 1388 | case WLAN_EID_EXTENSION: |
e4d005b8 JB |
1389 | ieee80211_parse_extension_element(calc_crc ? |
1390 | &crc : NULL, | |
ea5cba26 | 1391 | elem, elems, params); |
41cbb0f5 | 1392 | break; |
cd418ba6 | 1393 | case WLAN_EID_S1G_CAPABILITIES: |
652e8363 | 1394 | if (elen >= sizeof(*elems->s1g_capab)) |
cd418ba6 TP |
1395 | elems->s1g_capab = (void *)pos; |
1396 | else | |
1397 | elem_parse_failed = true; | |
1398 | break; | |
1399 | case WLAN_EID_S1G_OPERATION: | |
1400 | if (elen == sizeof(*elems->s1g_oper)) | |
1401 | elems->s1g_oper = (void *)pos; | |
1402 | else | |
1403 | elem_parse_failed = true; | |
1404 | break; | |
1405 | case WLAN_EID_S1G_BCN_COMPAT: | |
1406 | if (elen == sizeof(*elems->s1g_bcn_compat)) | |
1407 | elems->s1g_bcn_compat = (void *)pos; | |
1408 | else | |
1409 | elem_parse_failed = true; | |
1410 | break; | |
1d00ce80 TP |
1411 | case WLAN_EID_AID_RESPONSE: |
1412 | if (elen == sizeof(struct ieee80211_aid_response_ie)) | |
1413 | elems->aid_resp = (void *)pos; | |
1414 | else | |
1415 | elem_parse_failed = true; | |
1416 | break; | |
dd76986b JB |
1417 | default: |
1418 | break; | |
1419 | } | |
1420 | ||
fcff4f10 PS |
1421 | if (elem_parse_failed) |
1422 | elems->parse_error = true; | |
1423 | else | |
5df45690 | 1424 | __set_bit(id, seen_elems); |
dd76986b JB |
1425 | } |
1426 | ||
fd17bf04 | 1427 | if (!for_each_element_completed(elem, params->start, params->len)) |
fcff4f10 PS |
1428 | elems->parse_error = true; |
1429 | ||
dd76986b JB |
1430 | return crc; |
1431 | } | |
1432 | ||
5023b14c SS |
1433 | static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len, |
1434 | struct ieee802_11_elems *elems, | |
38c6aa29 | 1435 | struct cfg80211_bss *bss, |
5809a5d5 | 1436 | u8 *nontransmitted_profile) |
671042a4 SS |
1437 | { |
1438 | const struct element *elem, *sub; | |
5023b14c SS |
1439 | size_t profile_len = 0; |
1440 | bool found = false; | |
671042a4 | 1441 | |
38c6aa29 | 1442 | if (!bss || !bss->transmitted_bss) |
5023b14c | 1443 | return profile_len; |
671042a4 SS |
1444 | |
1445 | for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, start, len) { | |
1446 | if (elem->datalen < 2) | |
1447 | continue; | |
8f033d2b JB |
1448 | if (elem->data[0] < 1 || elem->data[0] > 8) |
1449 | continue; | |
671042a4 SS |
1450 | |
1451 | for_each_element(sub, elem->data + 1, elem->datalen - 1) { | |
1452 | u8 new_bssid[ETH_ALEN]; | |
1453 | const u8 *index; | |
1454 | ||
1455 | if (sub->id != 0 || sub->datalen < 4) { | |
1456 | /* not a valid BSS profile */ | |
1457 | continue; | |
1458 | } | |
1459 | ||
1460 | if (sub->data[0] != WLAN_EID_NON_TX_BSSID_CAP || | |
1461 | sub->data[1] != 2) { | |
1462 | /* The first element of the | |
1463 | * Nontransmitted BSSID Profile is not | |
1464 | * the Nontransmitted BSSID Capability | |
1465 | * element. | |
1466 | */ | |
1467 | continue; | |
1468 | } | |
1469 | ||
5809a5d5 | 1470 | memset(nontransmitted_profile, 0, len); |
5023b14c SS |
1471 | profile_len = cfg80211_merge_profile(start, len, |
1472 | elem, | |
1473 | sub, | |
1474 | nontransmitted_profile, | |
1475 | len); | |
1476 | ||
671042a4 SS |
1477 | /* found a Nontransmitted BSSID Profile */ |
1478 | index = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, | |
5809a5d5 | 1479 | nontransmitted_profile, |
5023b14c | 1480 | profile_len); |
671042a4 SS |
1481 | if (!index || index[1] < 1 || index[2] == 0) { |
1482 | /* Invalid MBSSID Index element */ | |
1483 | continue; | |
1484 | } | |
1485 | ||
38c6aa29 | 1486 | cfg80211_gen_new_bssid(bss->transmitted_bss->bssid, |
671042a4 SS |
1487 | elem->data[0], |
1488 | index[2], | |
1489 | new_bssid); | |
38c6aa29 | 1490 | if (ether_addr_equal(new_bssid, bss->bssid)) { |
5023b14c | 1491 | found = true; |
671042a4 SS |
1492 | elems->bssid_index_len = index[1]; |
1493 | elems->bssid_index = (void *)&index[2]; | |
1494 | break; | |
1495 | } | |
1496 | } | |
1497 | } | |
5023b14c SS |
1498 | |
1499 | return found ? profile_len : 0; | |
671042a4 SS |
1500 | } |
1501 | ||
fd17bf04 JB |
1502 | struct ieee802_11_elems * |
1503 | ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params) | |
78ac51f8 | 1504 | { |
5d24828d | 1505 | struct ieee802_11_elems *elems; |
671042a4 | 1506 | const struct element *non_inherit = NULL; |
5023b14c SS |
1507 | u8 *nontransmitted_profile; |
1508 | int nontransmitted_profile_len = 0; | |
ff05d4b4 | 1509 | size_t scratch_len = params->len; |
671042a4 | 1510 | |
ff05d4b4 | 1511 | elems = kzalloc(sizeof(*elems) + scratch_len, GFP_ATOMIC); |
5d24828d JB |
1512 | if (!elems) |
1513 | return NULL; | |
fd17bf04 JB |
1514 | elems->ie_start = params->start; |
1515 | elems->total_len = params->len; | |
ff05d4b4 JB |
1516 | elems->scratch_len = scratch_len; |
1517 | elems->scratch_pos = elems->scratch; | |
1518 | ||
1519 | nontransmitted_profile = elems->scratch_pos; | |
1520 | nontransmitted_profile_len = | |
1521 | ieee802_11_find_bssid_profile(params->start, params->len, | |
1522 | elems, params->bss, | |
1523 | nontransmitted_profile); | |
1524 | elems->scratch_pos += nontransmitted_profile_len; | |
1525 | elems->scratch_len -= nontransmitted_profile_len; | |
1526 | non_inherit = cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, | |
1527 | nontransmitted_profile, | |
1528 | nontransmitted_profile_len); | |
671042a4 | 1529 | |
fd17bf04 | 1530 | elems->crc = _ieee802_11_parse_elems_full(params, elems, non_inherit); |
78ac51f8 SS |
1531 | |
1532 | /* Override with nontransmitted profile, if found */ | |
fd17bf04 JB |
1533 | if (nontransmitted_profile_len) { |
1534 | struct ieee80211_elems_parse_params sub = { | |
1535 | .start = nontransmitted_profile, | |
1536 | .len = nontransmitted_profile_len, | |
1537 | .action = params->action, | |
425f4b5f | 1538 | .link_id = params->link_id, |
fd17bf04 JB |
1539 | }; |
1540 | ||
1541 | _ieee802_11_parse_elems_full(&sub, elems, NULL); | |
1542 | } | |
78ac51f8 SS |
1543 | |
1544 | if (elems->tim && !elems->parse_error) { | |
1545 | const struct ieee80211_tim_ie *tim_ie = elems->tim; | |
1546 | ||
1547 | elems->dtim_period = tim_ie->dtim_period; | |
1548 | elems->dtim_count = tim_ie->dtim_count; | |
1549 | } | |
1550 | ||
1551 | /* Override DTIM period and count if needed */ | |
1552 | if (elems->bssid_index && | |
1553 | elems->bssid_index_len >= | |
1554 | offsetofend(struct ieee80211_bssid_index, dtim_period)) | |
1555 | elems->dtim_period = elems->bssid_index->dtim_period; | |
1556 | ||
1557 | if (elems->bssid_index && | |
1558 | elems->bssid_index_len >= | |
1559 | offsetofend(struct ieee80211_bssid_index, dtim_count)) | |
1560 | elems->dtim_count = elems->bssid_index->dtim_count; | |
1561 | ||
5d24828d | 1562 | return elems; |
78ac51f8 SS |
1563 | } |
1564 | ||
e552af05 HD |
1565 | void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, |
1566 | struct ieee80211_tx_queue_params | |
1567 | *qparam, int ac) | |
1568 | { | |
1569 | struct ieee80211_chanctx_conf *chanctx_conf; | |
1570 | const struct ieee80211_reg_rule *rrule; | |
38cb87ee | 1571 | const struct ieee80211_wmm_ac *wmm_ac; |
e552af05 HD |
1572 | u16 center_freq = 0; |
1573 | ||
1574 | if (sdata->vif.type != NL80211_IFTYPE_AP && | |
1575 | sdata->vif.type != NL80211_IFTYPE_STATION) | |
1576 | return; | |
1577 | ||
1578 | rcu_read_lock(); | |
d0a9123e | 1579 | chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); |
e552af05 HD |
1580 | if (chanctx_conf) |
1581 | center_freq = chanctx_conf->def.chan->center_freq; | |
1582 | ||
1583 | if (!center_freq) { | |
1584 | rcu_read_unlock(); | |
1585 | return; | |
1586 | } | |
1587 | ||
1588 | rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq)); | |
1589 | ||
38cb87ee | 1590 | if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) { |
e552af05 HD |
1591 | rcu_read_unlock(); |
1592 | return; | |
1593 | } | |
1594 | ||
1595 | if (sdata->vif.type == NL80211_IFTYPE_AP) | |
38cb87ee | 1596 | wmm_ac = &rrule->wmm_rule.ap[ac]; |
e552af05 | 1597 | else |
38cb87ee | 1598 | wmm_ac = &rrule->wmm_rule.client[ac]; |
e552af05 HD |
1599 | qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min); |
1600 | qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max); | |
1601 | qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn); | |
abd76d25 | 1602 | qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32); |
e552af05 HD |
1603 | rcu_read_unlock(); |
1604 | } | |
1605 | ||
b3e2130b | 1606 | void ieee80211_set_wmm_default(struct ieee80211_link_data *link, |
cec66283 | 1607 | bool bss_notify, bool enable_qos) |
5825fe10 | 1608 | { |
b3e2130b | 1609 | struct ieee80211_sub_if_data *sdata = link->sdata; |
5825fe10 JB |
1610 | struct ieee80211_local *local = sdata->local; |
1611 | struct ieee80211_tx_queue_params qparam; | |
55de908a | 1612 | struct ieee80211_chanctx_conf *chanctx_conf; |
54bcbc69 | 1613 | int ac; |
cec66283 | 1614 | bool use_11b; |
239281f8 | 1615 | bool is_ocb; /* Use another EDCA parameters if dot11OCBActivated=true */ |
aa837e1d | 1616 | int aCWmin, aCWmax; |
5825fe10 JB |
1617 | |
1618 | if (!local->ops->conf_tx) | |
1619 | return; | |
1620 | ||
54bcbc69 JB |
1621 | if (local->hw.queues < IEEE80211_NUM_ACS) |
1622 | return; | |
1623 | ||
5825fe10 JB |
1624 | memset(&qparam, 0, sizeof(qparam)); |
1625 | ||
55de908a | 1626 | rcu_read_lock(); |
b3e2130b | 1627 | chanctx_conf = rcu_dereference(link->conf->chanctx_conf); |
55de908a | 1628 | use_11b = (chanctx_conf && |
57fbcce3 | 1629 | chanctx_conf->def.chan->band == NL80211_BAND_2GHZ) && |
39eac2de | 1630 | !link->operating_11g_mode; |
55de908a | 1631 | rcu_read_unlock(); |
5825fe10 | 1632 | |
239281f8 RL |
1633 | is_ocb = (sdata->vif.type == NL80211_IFTYPE_OCB); |
1634 | ||
1f4ffde8 FZ |
1635 | /* Set defaults according to 802.11-2007 Table 7-37 */ |
1636 | aCWmax = 1023; | |
1637 | if (use_11b) | |
1638 | aCWmin = 31; | |
1639 | else | |
1640 | aCWmin = 15; | |
1641 | ||
1642 | /* Confiure old 802.11b/g medium access rules. */ | |
1643 | qparam.cw_max = aCWmax; | |
1644 | qparam.cw_min = aCWmin; | |
1645 | qparam.txop = 0; | |
1646 | qparam.aifs = 2; | |
aa837e1d | 1647 | |
1f4ffde8 FZ |
1648 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { |
1649 | /* Update if QoS is enabled. */ | |
a8ce8544 SG |
1650 | if (enable_qos) { |
1651 | switch (ac) { | |
1652 | case IEEE80211_AC_BK: | |
1653 | qparam.cw_max = aCWmax; | |
1654 | qparam.cw_min = aCWmin; | |
1655 | qparam.txop = 0; | |
239281f8 RL |
1656 | if (is_ocb) |
1657 | qparam.aifs = 9; | |
1658 | else | |
1659 | qparam.aifs = 7; | |
a8ce8544 SG |
1660 | break; |
1661 | /* never happens but let's not leave undefined */ | |
1662 | default: | |
1663 | case IEEE80211_AC_BE: | |
1664 | qparam.cw_max = aCWmax; | |
1665 | qparam.cw_min = aCWmin; | |
1666 | qparam.txop = 0; | |
239281f8 RL |
1667 | if (is_ocb) |
1668 | qparam.aifs = 6; | |
1669 | else | |
1670 | qparam.aifs = 3; | |
a8ce8544 SG |
1671 | break; |
1672 | case IEEE80211_AC_VI: | |
1673 | qparam.cw_max = aCWmin; | |
1674 | qparam.cw_min = (aCWmin + 1) / 2 - 1; | |
239281f8 RL |
1675 | if (is_ocb) |
1676 | qparam.txop = 0; | |
1677 | else if (use_11b) | |
a8ce8544 SG |
1678 | qparam.txop = 6016/32; |
1679 | else | |
1680 | qparam.txop = 3008/32; | |
239281f8 RL |
1681 | |
1682 | if (is_ocb) | |
1683 | qparam.aifs = 3; | |
1684 | else | |
1685 | qparam.aifs = 2; | |
a8ce8544 SG |
1686 | break; |
1687 | case IEEE80211_AC_VO: | |
1688 | qparam.cw_max = (aCWmin + 1) / 2 - 1; | |
1689 | qparam.cw_min = (aCWmin + 1) / 4 - 1; | |
239281f8 RL |
1690 | if (is_ocb) |
1691 | qparam.txop = 0; | |
1692 | else if (use_11b) | |
a8ce8544 SG |
1693 | qparam.txop = 3264/32; |
1694 | else | |
1695 | qparam.txop = 1504/32; | |
1696 | qparam.aifs = 2; | |
1697 | break; | |
1698 | } | |
aa837e1d | 1699 | } |
e552af05 | 1700 | ieee80211_regulatory_limit_wmm_params(sdata, &qparam, ac); |
5825fe10 | 1701 | |
ab13315a KV |
1702 | qparam.uapsd = false; |
1703 | ||
b3e2130b JB |
1704 | link->tx_conf[ac] = qparam; |
1705 | drv_conf_tx(local, link, ac, &qparam); | |
aa837e1d | 1706 | } |
e1b3ec1a | 1707 | |
f142c6b9 | 1708 | if (sdata->vif.type != NL80211_IFTYPE_MONITOR && |
708d50ed AB |
1709 | sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE && |
1710 | sdata->vif.type != NL80211_IFTYPE_NAN) { | |
b3e2130b | 1711 | link->conf->qos = enable_qos; |
3abead59 | 1712 | if (bss_notify) |
b3e2130b | 1713 | ieee80211_link_info_change_notify(sdata, link, |
7b7090b4 | 1714 | BSS_CHANGED_QOS); |
d9734979 | 1715 | } |
5825fe10 | 1716 | } |
e50db65c | 1717 | |
46900298 | 1718 | void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, |
700e8ea6 | 1719 | u16 transaction, u16 auth_alg, u16 status, |
4a3cb702 | 1720 | const u8 *extra, size_t extra_len, const u8 *da, |
1672c0e3 JB |
1721 | const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx, |
1722 | u32 tx_flags) | |
46900298 JB |
1723 | { |
1724 | struct ieee80211_local *local = sdata->local; | |
1725 | struct sk_buff *skb; | |
1726 | struct ieee80211_mgmt *mgmt; | |
8ec9a96b JB |
1727 | bool multi_link = sdata->vif.valid_links; |
1728 | struct { | |
1729 | u8 id; | |
1730 | u8 len; | |
1731 | u8 ext_id; | |
1732 | struct ieee80211_multi_link_elem ml; | |
1733 | struct ieee80211_mle_basic_common_info basic; | |
1734 | } __packed mle = { | |
1735 | .id = WLAN_EID_EXTENSION, | |
1736 | .len = sizeof(mle) - 2, | |
1737 | .ext_id = WLAN_EID_EXT_EHT_MULTI_LINK, | |
1738 | .ml.control = cpu_to_le16(IEEE80211_ML_CONTROL_TYPE_BASIC), | |
1739 | .basic.len = sizeof(mle.basic), | |
1740 | }; | |
fffd0934 | 1741 | int err; |
46900298 | 1742 | |
8ec9a96b JB |
1743 | memcpy(mle.basic.mld_mac_addr, sdata->vif.addr, ETH_ALEN); |
1744 | ||
15e230ab | 1745 | /* 24 + 6 = header + auth_algo + auth_transaction + status_code */ |
744462a9 | 1746 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN + |
8ec9a96b JB |
1747 | 24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN + |
1748 | multi_link * sizeof(mle)); | |
d15b8459 | 1749 | if (!skb) |
46900298 | 1750 | return; |
d15b8459 | 1751 | |
744462a9 | 1752 | skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN); |
46900298 | 1753 | |
b080db58 | 1754 | mgmt = skb_put_zero(skb, 24 + 6); |
46900298 JB |
1755 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
1756 | IEEE80211_STYPE_AUTH); | |
efa6a09d | 1757 | memcpy(mgmt->da, da, ETH_ALEN); |
47846c9b | 1758 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); |
46900298 JB |
1759 | memcpy(mgmt->bssid, bssid, ETH_ALEN); |
1760 | mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg); | |
1761 | mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); | |
700e8ea6 | 1762 | mgmt->u.auth.status_code = cpu_to_le16(status); |
46900298 | 1763 | if (extra) |
59ae1d12 | 1764 | skb_put_data(skb, extra, extra_len); |
8ec9a96b JB |
1765 | if (multi_link) |
1766 | skb_put_data(skb, &mle, sizeof(mle)); | |
46900298 | 1767 | |
fffd0934 JB |
1768 | if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) { |
1769 | mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); | |
1770 | err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx); | |
7d7b0075 JB |
1771 | if (WARN_ON(err)) { |
1772 | kfree_skb(skb); | |
1773 | return; | |
1774 | } | |
fffd0934 JB |
1775 | } |
1776 | ||
1672c0e3 JB |
1777 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | |
1778 | tx_flags; | |
62ae67be | 1779 | ieee80211_tx_skb(sdata, skb); |
46900298 JB |
1780 | } |
1781 | ||
6ae16775 | 1782 | void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, |
4b08d1b6 JB |
1783 | const u8 *da, const u8 *bssid, |
1784 | u16 stype, u16 reason, | |
6ae16775 AQ |
1785 | bool send_frame, u8 *frame_buf) |
1786 | { | |
1787 | struct ieee80211_local *local = sdata->local; | |
1788 | struct sk_buff *skb; | |
1789 | struct ieee80211_mgmt *mgmt = (void *)frame_buf; | |
1790 | ||
1791 | /* build frame */ | |
1792 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); | |
1793 | mgmt->duration = 0; /* initialize only */ | |
1794 | mgmt->seq_ctrl = 0; /* initialize only */ | |
4b08d1b6 | 1795 | memcpy(mgmt->da, da, ETH_ALEN); |
6ae16775 AQ |
1796 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); |
1797 | memcpy(mgmt->bssid, bssid, ETH_ALEN); | |
1798 | /* u.deauth.reason_code == u.disassoc.reason_code */ | |
1799 | mgmt->u.deauth.reason_code = cpu_to_le16(reason); | |
1800 | ||
1801 | if (send_frame) { | |
1802 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + | |
1803 | IEEE80211_DEAUTH_FRAME_LEN); | |
1804 | if (!skb) | |
1805 | return; | |
1806 | ||
1807 | skb_reserve(skb, local->hw.extra_tx_headroom); | |
1808 | ||
1809 | /* copy in frame */ | |
59ae1d12 | 1810 | skb_put_data(skb, mgmt, IEEE80211_DEAUTH_FRAME_LEN); |
6ae16775 AQ |
1811 | |
1812 | if (sdata->vif.type != NL80211_IFTYPE_STATION || | |
1813 | !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED)) | |
1814 | IEEE80211_SKB_CB(skb)->flags |= | |
1815 | IEEE80211_TX_INTFL_DONT_ENCRYPT; | |
1816 | ||
1817 | ieee80211_tx_skb(sdata, skb); | |
1818 | } | |
1819 | } | |
1820 | ||
2ad2274c IP |
1821 | static u8 *ieee80211_write_he_6ghz_cap(u8 *pos, __le16 cap, u8 *end) |
1822 | { | |
1823 | if ((end - pos) < 5) | |
1824 | return pos; | |
1825 | ||
1826 | *pos++ = WLAN_EID_EXTENSION; | |
1827 | *pos++ = 1 + sizeof(cap); | |
1828 | *pos++ = WLAN_EID_EXT_HE_6GHZ_CAPA; | |
1829 | memcpy(pos, &cap, sizeof(cap)); | |
1830 | ||
1831 | return pos + 2; | |
1832 | } | |
1833 | ||
1834 | static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata, | |
c56ef672 DS |
1835 | u8 *buffer, size_t buffer_len, |
1836 | const u8 *ie, size_t ie_len, | |
57fbcce3 | 1837 | enum nl80211_band band, |
c56ef672 DS |
1838 | u32 rate_mask, |
1839 | struct cfg80211_chan_def *chandef, | |
00387f32 | 1840 | size_t *offset, u32 flags) |
de95a54b | 1841 | { |
2ad2274c | 1842 | struct ieee80211_local *local = sdata->local; |
de95a54b | 1843 | struct ieee80211_supported_band *sband; |
41cbb0f5 | 1844 | const struct ieee80211_sta_he_cap *he_cap; |
820acc81 | 1845 | const struct ieee80211_sta_eht_cap *eht_cap; |
c604b9f2 | 1846 | u8 *pos = buffer, *end = buffer + buffer_len; |
c56ef672 | 1847 | size_t noffset; |
8e664fb3 | 1848 | int supp_rates_len, i; |
8dcb2003 JM |
1849 | u8 rates[32]; |
1850 | int num_rates; | |
1851 | int ext_rates_len; | |
2103dec1 SW |
1852 | int shift; |
1853 | u32 rate_flags; | |
40a11ca8 | 1854 | bool have_80mhz = false; |
de95a54b | 1855 | |
c56ef672 DS |
1856 | *offset = 0; |
1857 | ||
4d36ec58 | 1858 | sband = local->hw.wiphy->bands[band]; |
d811b3d5 AN |
1859 | if (WARN_ON_ONCE(!sband)) |
1860 | return 0; | |
de95a54b | 1861 | |
2103dec1 SW |
1862 | rate_flags = ieee80211_chandef_rate_flags(chandef); |
1863 | shift = ieee80211_chandef_get_shift(chandef); | |
1864 | ||
8dcb2003 JM |
1865 | num_rates = 0; |
1866 | for (i = 0; i < sband->n_bitrates; i++) { | |
1867 | if ((BIT(i) & rate_mask) == 0) | |
1868 | continue; /* skip rate */ | |
2103dec1 SW |
1869 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) |
1870 | continue; | |
1871 | ||
1872 | rates[num_rates++] = | |
1873 | (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, | |
1874 | (1 << shift) * 5); | |
8dcb2003 JM |
1875 | } |
1876 | ||
1877 | supp_rates_len = min_t(int, num_rates, 8); | |
8e664fb3 | 1878 | |
c604b9f2 JB |
1879 | if (end - pos < 2 + supp_rates_len) |
1880 | goto out_err; | |
de95a54b | 1881 | *pos++ = WLAN_EID_SUPP_RATES; |
8e664fb3 | 1882 | *pos++ = supp_rates_len; |
8dcb2003 JM |
1883 | memcpy(pos, rates, supp_rates_len); |
1884 | pos += supp_rates_len; | |
8e664fb3 JB |
1885 | |
1886 | /* insert "request information" if in custom IEs */ | |
1887 | if (ie && ie_len) { | |
1888 | static const u8 before_extrates[] = { | |
1889 | WLAN_EID_SSID, | |
1890 | WLAN_EID_SUPP_RATES, | |
1891 | WLAN_EID_REQUEST, | |
1892 | }; | |
1893 | noffset = ieee80211_ie_split(ie, ie_len, | |
1894 | before_extrates, | |
1895 | ARRAY_SIZE(before_extrates), | |
c56ef672 DS |
1896 | *offset); |
1897 | if (end - pos < noffset - *offset) | |
c604b9f2 | 1898 | goto out_err; |
c56ef672 DS |
1899 | memcpy(pos, ie + *offset, noffset - *offset); |
1900 | pos += noffset - *offset; | |
1901 | *offset = noffset; | |
8e664fb3 JB |
1902 | } |
1903 | ||
8dcb2003 JM |
1904 | ext_rates_len = num_rates - supp_rates_len; |
1905 | if (ext_rates_len > 0) { | |
c604b9f2 JB |
1906 | if (end - pos < 2 + ext_rates_len) |
1907 | goto out_err; | |
8e664fb3 | 1908 | *pos++ = WLAN_EID_EXT_SUPP_RATES; |
8dcb2003 JM |
1909 | *pos++ = ext_rates_len; |
1910 | memcpy(pos, rates + supp_rates_len, ext_rates_len); | |
1911 | pos += ext_rates_len; | |
8e664fb3 JB |
1912 | } |
1913 | ||
57fbcce3 | 1914 | if (chandef->chan && sband->band == NL80211_BAND_2GHZ) { |
c604b9f2 JB |
1915 | if (end - pos < 3) |
1916 | goto out_err; | |
651b5225 JM |
1917 | *pos++ = WLAN_EID_DS_PARAMS; |
1918 | *pos++ = 1; | |
2103dec1 SW |
1919 | *pos++ = ieee80211_frequency_to_channel( |
1920 | chandef->chan->center_freq); | |
651b5225 JM |
1921 | } |
1922 | ||
b9771d41 JB |
1923 | if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT) |
1924 | goto done; | |
1925 | ||
8e664fb3 JB |
1926 | /* insert custom IEs that go before HT */ |
1927 | if (ie && ie_len) { | |
1928 | static const u8 before_ht[] = { | |
a7f26d80 JB |
1929 | /* |
1930 | * no need to list the ones split off already | |
1931 | * (or generated here) | |
1932 | */ | |
8e664fb3 JB |
1933 | WLAN_EID_DS_PARAMS, |
1934 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, | |
1935 | }; | |
1936 | noffset = ieee80211_ie_split(ie, ie_len, | |
1937 | before_ht, ARRAY_SIZE(before_ht), | |
c56ef672 DS |
1938 | *offset); |
1939 | if (end - pos < noffset - *offset) | |
c604b9f2 | 1940 | goto out_err; |
c56ef672 DS |
1941 | memcpy(pos, ie + *offset, noffset - *offset); |
1942 | pos += noffset - *offset; | |
1943 | *offset = noffset; | |
de95a54b JB |
1944 | } |
1945 | ||
c604b9f2 JB |
1946 | if (sband->ht_cap.ht_supported) { |
1947 | if (end - pos < 2 + sizeof(struct ieee80211_ht_cap)) | |
1948 | goto out_err; | |
ef96a842 BG |
1949 | pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, |
1950 | sband->ht_cap.cap); | |
c604b9f2 | 1951 | } |
5ef2d41a | 1952 | |
4d952300 | 1953 | /* insert custom IEs that go before VHT */ |
8e664fb3 | 1954 | if (ie && ie_len) { |
4d952300 | 1955 | static const u8 before_vht[] = { |
a7f26d80 JB |
1956 | /* |
1957 | * no need to list the ones split off already | |
1958 | * (or generated here) | |
1959 | */ | |
4d952300 JB |
1960 | WLAN_EID_BSS_COEX_2040, |
1961 | WLAN_EID_EXT_CAPABILITY, | |
1962 | WLAN_EID_SSID_LIST, | |
1963 | WLAN_EID_CHANNEL_USAGE, | |
1964 | WLAN_EID_INTERWORKING, | |
b44eebea | 1965 | WLAN_EID_MESH_ID, |
a7f26d80 | 1966 | /* 60 GHz (Multi-band, DMG, MMS) can't happen */ |
4d952300 JB |
1967 | }; |
1968 | noffset = ieee80211_ie_split(ie, ie_len, | |
1969 | before_vht, ARRAY_SIZE(before_vht), | |
c56ef672 DS |
1970 | *offset); |
1971 | if (end - pos < noffset - *offset) | |
c604b9f2 | 1972 | goto out_err; |
c56ef672 DS |
1973 | memcpy(pos, ie + *offset, noffset - *offset); |
1974 | pos += noffset - *offset; | |
1975 | *offset = noffset; | |
de95a54b JB |
1976 | } |
1977 | ||
40a11ca8 JB |
1978 | /* Check if any channel in this sband supports at least 80 MHz */ |
1979 | for (i = 0; i < sband->n_channels; i++) { | |
fa44b988 AN |
1980 | if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | |
1981 | IEEE80211_CHAN_NO_80MHZ)) | |
1982 | continue; | |
1983 | ||
1984 | have_80mhz = true; | |
1985 | break; | |
40a11ca8 JB |
1986 | } |
1987 | ||
1988 | if (sband->vht_cap.vht_supported && have_80mhz) { | |
c604b9f2 JB |
1989 | if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) |
1990 | goto out_err; | |
ba0afa2f MP |
1991 | pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, |
1992 | sband->vht_cap.cap); | |
c604b9f2 | 1993 | } |
ba0afa2f | 1994 | |
41cbb0f5 LC |
1995 | /* insert custom IEs that go before HE */ |
1996 | if (ie && ie_len) { | |
1997 | static const u8 before_he[] = { | |
1998 | /* | |
1999 | * no need to list the ones split off before VHT | |
2000 | * or generated here | |
2001 | */ | |
2002 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS, | |
2003 | WLAN_EID_AP_CSN, | |
2004 | /* TODO: add 11ah/11aj/11ak elements */ | |
2005 | }; | |
2006 | noffset = ieee80211_ie_split(ie, ie_len, | |
2007 | before_he, ARRAY_SIZE(before_he), | |
2008 | *offset); | |
2009 | if (end - pos < noffset - *offset) | |
2010 | goto out_err; | |
2011 | memcpy(pos, ie + *offset, noffset - *offset); | |
2012 | pos += noffset - *offset; | |
2013 | *offset = noffset; | |
2014 | } | |
2015 | ||
bac2fd3d JB |
2016 | he_cap = ieee80211_get_he_iftype_cap(sband, |
2017 | ieee80211_vif_type_p2p(&sdata->vif)); | |
0bc47057 JB |
2018 | if (he_cap && |
2019 | cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band), | |
2020 | IEEE80211_CHAN_NO_HE)) { | |
1f2c1044 | 2021 | pos = ieee80211_ie_build_he_cap(0, pos, he_cap, end); |
41cbb0f5 LC |
2022 | if (!pos) |
2023 | goto out_err; | |
7d29bc50 JB |
2024 | } |
2025 | ||
820acc81 IP |
2026 | eht_cap = ieee80211_get_eht_iftype_cap(sband, |
2027 | ieee80211_vif_type_p2p(&sdata->vif)); | |
2028 | ||
2029 | if (eht_cap && | |
2030 | cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band), | |
2031 | IEEE80211_CHAN_NO_HE | | |
2032 | IEEE80211_CHAN_NO_EHT)) { | |
ea5cba26 JB |
2033 | pos = ieee80211_ie_build_eht_cap(pos, he_cap, eht_cap, end, |
2034 | sdata->vif.type == NL80211_IFTYPE_AP); | |
820acc81 IP |
2035 | if (!pos) |
2036 | goto out_err; | |
2037 | } | |
2038 | ||
7d29bc50 JB |
2039 | if (cfg80211_any_usable_channels(local->hw.wiphy, |
2040 | BIT(NL80211_BAND_6GHZ), | |
2041 | IEEE80211_CHAN_NO_HE)) { | |
2042 | struct ieee80211_supported_band *sband6; | |
2043 | ||
2044 | sband6 = local->hw.wiphy->bands[NL80211_BAND_6GHZ]; | |
2045 | he_cap = ieee80211_get_he_iftype_cap(sband6, | |
2046 | ieee80211_vif_type_p2p(&sdata->vif)); | |
2ad2274c | 2047 | |
7d29bc50 | 2048 | if (he_cap) { |
2ad2274c IP |
2049 | enum nl80211_iftype iftype = |
2050 | ieee80211_vif_type_p2p(&sdata->vif); | |
b650009f | 2051 | __le16 cap = ieee80211_get_he_6ghz_capa(sband6, iftype); |
2ad2274c IP |
2052 | |
2053 | pos = ieee80211_write_he_6ghz_cap(pos, cap, end); | |
2054 | } | |
41cbb0f5 LC |
2055 | } |
2056 | ||
2057 | /* | |
2058 | * If adding more here, adjust code in main.c | |
2059 | * that calculates local->scan_ies_len. | |
2060 | */ | |
2061 | ||
c604b9f2 JB |
2062 | return pos - buffer; |
2063 | out_err: | |
2064 | WARN_ONCE(1, "not enough space for preq IEs\n"); | |
b9771d41 | 2065 | done: |
de95a54b JB |
2066 | return pos - buffer; |
2067 | } | |
2068 | ||
2ad2274c | 2069 | int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, |
c56ef672 DS |
2070 | size_t buffer_len, |
2071 | struct ieee80211_scan_ies *ie_desc, | |
2072 | const u8 *ie, size_t ie_len, | |
2073 | u8 bands_used, u32 *rate_masks, | |
00387f32 JB |
2074 | struct cfg80211_chan_def *chandef, |
2075 | u32 flags) | |
c56ef672 DS |
2076 | { |
2077 | size_t pos = 0, old_pos = 0, custom_ie_offset = 0; | |
2078 | int i; | |
2079 | ||
2080 | memset(ie_desc, 0, sizeof(*ie_desc)); | |
2081 | ||
57fbcce3 | 2082 | for (i = 0; i < NUM_NL80211_BANDS; i++) { |
c56ef672 | 2083 | if (bands_used & BIT(i)) { |
2ad2274c | 2084 | pos += ieee80211_build_preq_ies_band(sdata, |
c56ef672 DS |
2085 | buffer + pos, |
2086 | buffer_len - pos, | |
2087 | ie, ie_len, i, | |
2088 | rate_masks[i], | |
2089 | chandef, | |
00387f32 JB |
2090 | &custom_ie_offset, |
2091 | flags); | |
c56ef672 DS |
2092 | ie_desc->ies[i] = buffer + old_pos; |
2093 | ie_desc->len[i] = pos - old_pos; | |
2094 | old_pos = pos; | |
2095 | } | |
2096 | } | |
2097 | ||
2098 | /* add any remaining custom IEs */ | |
2099 | if (ie && ie_len) { | |
2100 | if (WARN_ONCE(buffer_len - pos < ie_len - custom_ie_offset, | |
2101 | "not enough space for preq custom IEs\n")) | |
2102 | return pos; | |
2103 | memcpy(buffer + pos, ie + custom_ie_offset, | |
2104 | ie_len - custom_ie_offset); | |
2105 | ie_desc->common_ies = buffer + pos; | |
2106 | ie_desc->common_ie_len = ie_len - custom_ie_offset; | |
2107 | pos += ie_len - custom_ie_offset; | |
2108 | } | |
2109 | ||
2110 | return pos; | |
2111 | }; | |
2112 | ||
a619a4c0 | 2113 | struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, |
a344d677 JB |
2114 | const u8 *src, const u8 *dst, |
2115 | u32 ratemask, | |
6b77863b | 2116 | struct ieee80211_channel *chan, |
a619a4c0 | 2117 | const u8 *ssid, size_t ssid_len, |
a806c558 | 2118 | const u8 *ie, size_t ie_len, |
00387f32 | 2119 | u32 flags) |
46900298 JB |
2120 | { |
2121 | struct ieee80211_local *local = sdata->local; | |
2103dec1 | 2122 | struct cfg80211_chan_def chandef; |
46900298 JB |
2123 | struct sk_buff *skb; |
2124 | struct ieee80211_mgmt *mgmt; | |
b9a9ada1 | 2125 | int ies_len; |
57fbcce3 | 2126 | u32 rate_masks[NUM_NL80211_BANDS] = {}; |
c56ef672 | 2127 | struct ieee80211_scan_ies dummy_ie_desc; |
46900298 | 2128 | |
a806c558 PS |
2129 | /* |
2130 | * Do not send DS Channel parameter for directed probe requests | |
2131 | * in order to maximize the chance that we get a response. Some | |
2132 | * badly-behaved APs don't respond when this parameter is included. | |
2133 | */ | |
2103dec1 | 2134 | chandef.width = sdata->vif.bss_conf.chandef.width; |
00387f32 | 2135 | if (flags & IEEE80211_PROBE_FLAG_DIRECTED) |
2103dec1 | 2136 | chandef.chan = NULL; |
a806c558 | 2137 | else |
2103dec1 | 2138 | chandef.chan = chan; |
651b5225 | 2139 | |
a344d677 | 2140 | skb = ieee80211_probereq_get(&local->hw, src, ssid, ssid_len, |
f22d9813 | 2141 | local->scan_ies_len + ie_len); |
5b2bbf75 | 2142 | if (!skb) |
b9a9ada1 JB |
2143 | return NULL; |
2144 | ||
c56ef672 | 2145 | rate_masks[chan->band] = ratemask; |
2ad2274c | 2146 | ies_len = ieee80211_build_preq_ies(sdata, skb_tail_pointer(skb), |
c56ef672 DS |
2147 | skb_tailroom(skb), &dummy_ie_desc, |
2148 | ie, ie_len, BIT(chan->band), | |
00387f32 | 2149 | rate_masks, &chandef, flags); |
b9a9ada1 | 2150 | skb_put(skb, ies_len); |
7c12ce8b | 2151 | |
46900298 | 2152 | if (dst) { |
7c12ce8b | 2153 | mgmt = (struct ieee80211_mgmt *) skb->data; |
46900298 JB |
2154 | memcpy(mgmt->da, dst, ETH_ALEN); |
2155 | memcpy(mgmt->bssid, dst, ETH_ALEN); | |
46900298 | 2156 | } |
46900298 | 2157 | |
62ae67be | 2158 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; |
5b2bbf75 | 2159 | |
a619a4c0 JO |
2160 | return skb; |
2161 | } | |
2162 | ||
2103dec1 | 2163 | u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, |
46900298 | 2164 | struct ieee802_11_elems *elems, |
57fbcce3 | 2165 | enum nl80211_band band, u32 *basic_rates) |
46900298 JB |
2166 | { |
2167 | struct ieee80211_supported_band *sband; | |
46900298 | 2168 | size_t num_rates; |
2103dec1 SW |
2169 | u32 supp_rates, rate_flags; |
2170 | int i, j, shift; | |
21a8e9dd | 2171 | |
2103dec1 | 2172 | sband = sdata->local->hw.wiphy->bands[band]; |
21a8e9dd MSS |
2173 | if (WARN_ON(!sband)) |
2174 | return 1; | |
2103dec1 SW |
2175 | |
2176 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
2177 | shift = ieee80211_vif_get_shift(&sdata->vif); | |
46900298 | 2178 | |
46900298 JB |
2179 | num_rates = sband->n_bitrates; |
2180 | supp_rates = 0; | |
2181 | for (i = 0; i < elems->supp_rates_len + | |
2182 | elems->ext_supp_rates_len; i++) { | |
2183 | u8 rate = 0; | |
2184 | int own_rate; | |
9ebb61a2 | 2185 | bool is_basic; |
46900298 JB |
2186 | if (i < elems->supp_rates_len) |
2187 | rate = elems->supp_rates[i]; | |
2188 | else if (elems->ext_supp_rates) | |
2189 | rate = elems->ext_supp_rates | |
2190 | [i - elems->supp_rates_len]; | |
2191 | own_rate = 5 * (rate & 0x7f); | |
9ebb61a2 AN |
2192 | is_basic = !!(rate & 0x80); |
2193 | ||
2194 | if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY) | |
2195 | continue; | |
2196 | ||
2197 | for (j = 0; j < num_rates; j++) { | |
2103dec1 SW |
2198 | int brate; |
2199 | if ((rate_flags & sband->bitrates[j].flags) | |
2200 | != rate_flags) | |
2201 | continue; | |
2202 | ||
2203 | brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, | |
2204 | 1 << shift); | |
2205 | ||
2206 | if (brate == own_rate) { | |
46900298 | 2207 | supp_rates |= BIT(j); |
9ebb61a2 AN |
2208 | if (basic_rates && is_basic) |
2209 | *basic_rates |= BIT(j); | |
2210 | } | |
2211 | } | |
46900298 JB |
2212 | } |
2213 | return supp_rates; | |
2214 | } | |
f2753ddb | 2215 | |
84f6a01c JB |
2216 | void ieee80211_stop_device(struct ieee80211_local *local) |
2217 | { | |
2218 | ieee80211_led_radio(local, false); | |
67408c8c | 2219 | ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO); |
84f6a01c JB |
2220 | |
2221 | cancel_work_sync(&local->reconfig_filter); | |
84f6a01c JB |
2222 | |
2223 | flush_workqueue(local->workqueue); | |
678f415f | 2224 | drv_stop(local); |
84f6a01c JB |
2225 | } |
2226 | ||
74430f94 JB |
2227 | static void ieee80211_flush_completed_scan(struct ieee80211_local *local, |
2228 | bool aborted) | |
2229 | { | |
2230 | /* It's possible that we don't handle the scan completion in | |
2231 | * time during suspend, so if it's still marked as completed | |
2232 | * here, queue the work and flush it to clean things up. | |
2233 | * Instead of calling the worker function directly here, we | |
2234 | * really queue it to avoid potential races with other flows | |
2235 | * scheduling the same work. | |
2236 | */ | |
2237 | if (test_bit(SCAN_COMPLETED, &local->scanning)) { | |
2238 | /* If coming from reconfiguration failure, abort the scan so | |
2239 | * we don't attempt to continue a partial HW scan - which is | |
2240 | * possible otherwise if (e.g.) the 2.4 GHz portion was the | |
2241 | * completed scan, and a 5 GHz portion is still pending. | |
2242 | */ | |
2243 | if (aborted) | |
2244 | set_bit(SCAN_ABORTED, &local->scanning); | |
2245 | ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); | |
2246 | flush_delayed_work(&local->scan_work); | |
2247 | } | |
2248 | } | |
2249 | ||
f6837ba8 JB |
2250 | static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) |
2251 | { | |
2252 | struct ieee80211_sub_if_data *sdata; | |
2253 | struct ieee80211_chanctx *ctx; | |
2254 | ||
2255 | /* | |
2256 | * We get here if during resume the device can't be restarted properly. | |
2257 | * We might also get here if this happens during HW reset, which is a | |
2258 | * slightly different situation and we need to drop all connections in | |
2259 | * the latter case. | |
2260 | * | |
2261 | * Ask cfg80211 to turn off all interfaces, this will result in more | |
2262 | * warnings but at least we'll then get into a clean stopped state. | |
2263 | */ | |
2264 | ||
2265 | local->resuming = false; | |
2266 | local->suspended = false; | |
7584f88f | 2267 | local->in_reconfig = false; |
f6837ba8 | 2268 | |
74430f94 JB |
2269 | ieee80211_flush_completed_scan(local, true); |
2270 | ||
f6837ba8 JB |
2271 | /* scheduled scan clearly can't be running any more, but tell |
2272 | * cfg80211 and clear local state | |
2273 | */ | |
2274 | ieee80211_sched_scan_end(local); | |
2275 | ||
2276 | list_for_each_entry(sdata, &local->interfaces, list) | |
2277 | sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER; | |
2278 | ||
2279 | /* Mark channel contexts as not being in the driver any more to avoid | |
2280 | * removing them from the driver during the shutdown process... | |
2281 | */ | |
2282 | mutex_lock(&local->chanctx_mtx); | |
2283 | list_for_each_entry(ctx, &local->chanctx_list, list) | |
2284 | ctx->driver_present = false; | |
2285 | mutex_unlock(&local->chanctx_mtx); | |
f6837ba8 JB |
2286 | } |
2287 | ||
153a5fc4 | 2288 | static void ieee80211_assign_chanctx(struct ieee80211_local *local, |
b4f85443 | 2289 | struct ieee80211_sub_if_data *sdata, |
d8675a63 | 2290 | struct ieee80211_link_data *link) |
153a5fc4 SG |
2291 | { |
2292 | struct ieee80211_chanctx_conf *conf; | |
2293 | struct ieee80211_chanctx *ctx; | |
2294 | ||
2295 | if (!local->use_chanctx) | |
2296 | return; | |
2297 | ||
2298 | mutex_lock(&local->chanctx_mtx); | |
d8675a63 | 2299 | conf = rcu_dereference_protected(link->conf->chanctx_conf, |
153a5fc4 SG |
2300 | lockdep_is_held(&local->chanctx_mtx)); |
2301 | if (conf) { | |
2302 | ctx = container_of(conf, struct ieee80211_chanctx, conf); | |
727eff4d | 2303 | drv_assign_vif_chanctx(local, sdata, link->conf, ctx); |
153a5fc4 SG |
2304 | } |
2305 | mutex_unlock(&local->chanctx_mtx); | |
2306 | } | |
2307 | ||
1ea2c864 JB |
2308 | static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) |
2309 | { | |
2310 | struct ieee80211_local *local = sdata->local; | |
2311 | struct sta_info *sta; | |
2312 | ||
2313 | /* add STAs back */ | |
2314 | mutex_lock(&local->sta_mtx); | |
2315 | list_for_each_entry(sta, &local->sta_list, list) { | |
2316 | enum ieee80211_sta_state state; | |
2317 | ||
2318 | if (!sta->uploaded || sta->sdata != sdata) | |
2319 | continue; | |
2320 | ||
2321 | for (state = IEEE80211_STA_NOTEXIST; | |
2322 | state < sta->sta_state; state++) | |
2323 | WARN_ON(drv_sta_state(local, sta->sdata, sta, state, | |
2324 | state + 1)); | |
2325 | } | |
2326 | mutex_unlock(&local->sta_mtx); | |
2327 | } | |
2328 | ||
167e33f4 AB |
2329 | static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata) |
2330 | { | |
2331 | struct cfg80211_nan_func *func, **funcs; | |
2332 | int res, id, i = 0; | |
2333 | ||
2334 | res = drv_start_nan(sdata->local, sdata, | |
2335 | &sdata->u.nan.conf); | |
2336 | if (WARN_ON(res)) | |
2337 | return res; | |
2338 | ||
6396bb22 KC |
2339 | funcs = kcalloc(sdata->local->hw.max_nan_de_entries + 1, |
2340 | sizeof(*funcs), | |
2341 | GFP_KERNEL); | |
167e33f4 AB |
2342 | if (!funcs) |
2343 | return -ENOMEM; | |
2344 | ||
2345 | /* Add all the functions: | |
2346 | * This is a little bit ugly. We need to call a potentially sleeping | |
2347 | * callback for each NAN function, so we can't hold the spinlock. | |
2348 | */ | |
2349 | spin_lock_bh(&sdata->u.nan.func_lock); | |
2350 | ||
2351 | idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) | |
2352 | funcs[i++] = func; | |
2353 | ||
2354 | spin_unlock_bh(&sdata->u.nan.func_lock); | |
2355 | ||
2356 | for (i = 0; funcs[i]; i++) { | |
2357 | res = drv_add_nan_func(sdata->local, sdata, funcs[i]); | |
2358 | if (WARN_ON(res)) | |
2359 | ieee80211_nan_func_terminated(&sdata->vif, | |
2360 | funcs[i]->instance_id, | |
2361 | NL80211_NAN_FUNC_TERM_REASON_ERROR, | |
2362 | GFP_KERNEL); | |
2363 | } | |
2364 | ||
2365 | kfree(funcs); | |
2366 | ||
2367 | return 0; | |
2368 | } | |
2369 | ||
f2753ddb JB |
2370 | int ieee80211_reconfig(struct ieee80211_local *local) |
2371 | { | |
2372 | struct ieee80211_hw *hw = &local->hw; | |
2373 | struct ieee80211_sub_if_data *sdata; | |
55de908a | 2374 | struct ieee80211_chanctx *ctx; |
f2753ddb | 2375 | struct sta_info *sta; |
2683d65b | 2376 | int res, i; |
d888130a | 2377 | bool reconfig_due_to_wowlan = false; |
d43c6b6e | 2378 | struct ieee80211_sub_if_data *sched_scan_sdata; |
6ea0a69c | 2379 | struct cfg80211_sched_scan_request *sched_scan_req; |
d43c6b6e | 2380 | bool sched_scan_stopped = false; |
b0485e9f | 2381 | bool suspended = local->suspended; |
7d352ccf | 2382 | bool in_reconfig = false; |
d888130a | 2383 | |
0f8b8245 EP |
2384 | /* nothing to do if HW shouldn't run */ |
2385 | if (!local->open_count) | |
2386 | goto wake_up; | |
2387 | ||
8f21b0ad | 2388 | #ifdef CONFIG_PM |
b0485e9f | 2389 | if (suspended) |
ceb99fe0 | 2390 | local->resuming = true; |
f2753ddb | 2391 | |
eecc4800 | 2392 | if (local->wowlan) { |
b0485e9f EP |
2393 | /* |
2394 | * In the wowlan case, both mac80211 and the device | |
2395 | * are functional when the resume op is called, so | |
2396 | * clear local->suspended so the device could operate | |
2397 | * normally (e.g. pass rx frames). | |
2398 | */ | |
2399 | local->suspended = false; | |
eecc4800 | 2400 | res = drv_resume(local); |
27b3eb9c | 2401 | local->wowlan = false; |
eecc4800 JB |
2402 | if (res < 0) { |
2403 | local->resuming = false; | |
2404 | return res; | |
2405 | } | |
2406 | if (res == 0) | |
2407 | goto wake_up; | |
2408 | WARN_ON(res > 1); | |
2409 | /* | |
2410 | * res is 1, which means the driver requested | |
2411 | * to go through a regular reset on wakeup. | |
b0485e9f | 2412 | * restore local->suspended in this case. |
eecc4800 | 2413 | */ |
d888130a | 2414 | reconfig_due_to_wowlan = true; |
b0485e9f | 2415 | local->suspended = true; |
eecc4800 JB |
2416 | } |
2417 | #endif | |
f2753ddb | 2418 | |
43d6df00 EP |
2419 | /* |
2420 | * In case of hw_restart during suspend (without wowlan), | |
2421 | * cancel restart work, as we are reconfiguring the device | |
2422 | * anyway. | |
2423 | * Note that restart_work is scheduled on a frozen workqueue, | |
2424 | * so we can't deadlock in this case. | |
2425 | */ | |
2426 | if (suspended && local->in_reconfig && !reconfig_due_to_wowlan) | |
2427 | cancel_work_sync(&local->restart_work); | |
2428 | ||
968a76ce EP |
2429 | local->started = false; |
2430 | ||
94f9b97b JB |
2431 | /* |
2432 | * Upon resume hardware can sometimes be goofy due to | |
2433 | * various platform / driver / bus issues, so restarting | |
2434 | * the device may at times not work immediately. Propagate | |
2435 | * the error. | |
2436 | */ | |
2437 | res = drv_start(local); | |
2438 | if (res) { | |
b0485e9f | 2439 | if (suspended) |
f6837ba8 JB |
2440 | WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n"); |
2441 | else | |
2442 | WARN(1, "Hardware became unavailable during restart.\n"); | |
2443 | ieee80211_handle_reconfig_failure(local); | |
94f9b97b | 2444 | return res; |
f2753ddb JB |
2445 | } |
2446 | ||
7f281975 YAP |
2447 | /* setup fragmentation threshold */ |
2448 | drv_set_frag_threshold(local, hw->wiphy->frag_threshold); | |
2449 | ||
2450 | /* setup RTS threshold */ | |
2451 | drv_set_rts_threshold(local, hw->wiphy->rts_threshold); | |
2452 | ||
2453 | /* reset coverage class */ | |
2454 | drv_set_coverage_class(local, hw->wiphy->coverage_class); | |
2455 | ||
94f9b97b JB |
2456 | ieee80211_led_radio(local, true); |
2457 | ieee80211_mod_tpt_led_trig(local, | |
2458 | IEEE80211_TPT_LEDTRIG_FL_RADIO, 0); | |
2459 | ||
f2753ddb | 2460 | /* add interfaces */ |
6dd23603 | 2461 | sdata = wiphy_dereference(local->hw.wiphy, local->monitor_sdata); |
4b6f1dd6 | 2462 | if (sdata) { |
3c3e21e7 JB |
2463 | /* in HW restart it exists already */ |
2464 | WARN_ON(local->resuming); | |
4b6f1dd6 JB |
2465 | res = drv_add_interface(local, sdata); |
2466 | if (WARN_ON(res)) { | |
0c2bef46 | 2467 | RCU_INIT_POINTER(local->monitor_sdata, NULL); |
4b6f1dd6 JB |
2468 | synchronize_net(); |
2469 | kfree(sdata); | |
2470 | } | |
2471 | } | |
2472 | ||
f2753ddb JB |
2473 | list_for_each_entry(sdata, &local->interfaces, list) { |
2474 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && | |
2475 | sdata->vif.type != NL80211_IFTYPE_MONITOR && | |
c8fff3dc | 2476 | ieee80211_sdata_running(sdata)) { |
7b7eab6f | 2477 | res = drv_add_interface(local, sdata); |
c8fff3dc LC |
2478 | if (WARN_ON(res)) |
2479 | break; | |
2480 | } | |
2481 | } | |
2482 | ||
2483 | /* If adding any of the interfaces failed above, roll back and | |
2484 | * report failure. | |
2485 | */ | |
2486 | if (res) { | |
2487 | list_for_each_entry_continue_reverse(sdata, &local->interfaces, | |
2488 | list) | |
2489 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && | |
2490 | sdata->vif.type != NL80211_IFTYPE_MONITOR && | |
2491 | ieee80211_sdata_running(sdata)) | |
2492 | drv_remove_interface(local, sdata); | |
2493 | ieee80211_handle_reconfig_failure(local); | |
2494 | return res; | |
f2753ddb JB |
2495 | } |
2496 | ||
55de908a | 2497 | /* add channel contexts */ |
f0dea9c7 AS |
2498 | if (local->use_chanctx) { |
2499 | mutex_lock(&local->chanctx_mtx); | |
2500 | list_for_each_entry(ctx, &local->chanctx_list, list) | |
5bcae31d MK |
2501 | if (ctx->replace_state != |
2502 | IEEE80211_CHANCTX_REPLACES_OTHER) | |
2503 | WARN_ON(drv_add_chanctx(local, ctx)); | |
f0dea9c7 | 2504 | mutex_unlock(&local->chanctx_mtx); |
55de908a | 2505 | |
6dd23603 JB |
2506 | sdata = wiphy_dereference(local->hw.wiphy, |
2507 | local->monitor_sdata); | |
7df180f7 | 2508 | if (sdata && ieee80211_sdata_running(sdata)) |
d8675a63 | 2509 | ieee80211_assign_chanctx(local, sdata, &sdata->deflink); |
7df180f7 | 2510 | } |
fe5f2559 | 2511 | |
f2753ddb JB |
2512 | /* reconfigure hardware */ |
2513 | ieee80211_hw_config(local, ~0); | |
2514 | ||
f2753ddb | 2515 | ieee80211_configure_filter(local); |
f2753ddb JB |
2516 | |
2517 | /* Finally also reconfigure all the BSS information */ | |
2518 | list_for_each_entry(sdata, &local->interfaces, list) { | |
d8675a63 | 2519 | unsigned int link_id; |
ac8dd506 JB |
2520 | u32 changed; |
2521 | ||
9607e6b6 | 2522 | if (!ieee80211_sdata_running(sdata)) |
f2753ddb | 2523 | continue; |
ac8dd506 | 2524 | |
d8675a63 JB |
2525 | sdata_lock(sdata); |
2526 | for (link_id = 0; | |
2527 | link_id < ARRAY_SIZE(sdata->vif.link_conf); | |
2528 | link_id++) { | |
2529 | struct ieee80211_link_data *link; | |
2530 | ||
2531 | link = sdata_dereference(sdata->link[link_id], sdata); | |
2532 | if (link) | |
b4f85443 JB |
2533 | ieee80211_assign_chanctx(local, sdata, link); |
2534 | } | |
1ea2c864 JB |
2535 | |
2536 | switch (sdata->vif.type) { | |
2537 | case NL80211_IFTYPE_AP_VLAN: | |
2538 | case NL80211_IFTYPE_MONITOR: | |
2539 | break; | |
4926b51b | 2540 | case NL80211_IFTYPE_ADHOC: |
f276e20b | 2541 | if (sdata->vif.cfg.ibss_joined) |
4926b51b | 2542 | WARN_ON(drv_join_ibss(local, sdata)); |
fc0561dc | 2543 | fallthrough; |
1ea2c864 JB |
2544 | default: |
2545 | ieee80211_reconfig_stations(sdata); | |
fc0561dc | 2546 | fallthrough; |
1ea2c864 JB |
2547 | case NL80211_IFTYPE_AP: /* AP stations are handled later */ |
2548 | for (i = 0; i < IEEE80211_NUM_ACS; i++) | |
b3e2130b JB |
2549 | drv_conf_tx(local, &sdata->deflink, i, |
2550 | &sdata->deflink.tx_conf[i]); | |
1ea2c864 JB |
2551 | break; |
2552 | } | |
48c5d82a | 2553 | sdata_unlock(sdata); |
1ea2c864 | 2554 | |
ac8dd506 JB |
2555 | /* common change flags for all interface types */ |
2556 | changed = BSS_CHANGED_ERP_CTS_PROT | | |
2557 | BSS_CHANGED_ERP_PREAMBLE | | |
2558 | BSS_CHANGED_ERP_SLOT | | |
2559 | BSS_CHANGED_HT | | |
2560 | BSS_CHANGED_BASIC_RATES | | |
2561 | BSS_CHANGED_BEACON_INT | | |
2562 | BSS_CHANGED_BSSID | | |
4ced3f74 | 2563 | BSS_CHANGED_CQM | |
55de47f6 | 2564 | BSS_CHANGED_QOS | |
1ea6f9c0 | 2565 | BSS_CHANGED_IDLE | |
dcbe73ca PKC |
2566 | BSS_CHANGED_TXPOWER | |
2567 | BSS_CHANGED_MCAST_RATE; | |
ac8dd506 | 2568 | |
d0a9123e | 2569 | if (sdata->vif.bss_conf.mu_mimo_owner) |
23a1f8d4 SS |
2570 | changed |= BSS_CHANGED_MU_GROUPS; |
2571 | ||
f2753ddb JB |
2572 | switch (sdata->vif.type) { |
2573 | case NL80211_IFTYPE_STATION: | |
0d392e93 | 2574 | changed |= BSS_CHANGED_ASSOC | |
ab095877 EP |
2575 | BSS_CHANGED_ARP_FILTER | |
2576 | BSS_CHANGED_PS; | |
c65dd147 | 2577 | |
989c6505 | 2578 | /* Re-send beacon info report to the driver */ |
bfd8403a | 2579 | if (sdata->deflink.u.mgd.have_beacon) |
989c6505 | 2580 | changed |= BSS_CHANGED_BEACON_INFO; |
c65dd147 | 2581 | |
e38a017b AS |
2582 | if (sdata->vif.bss_conf.max_idle_period || |
2583 | sdata->vif.bss_conf.protected_keep_alive) | |
2584 | changed |= BSS_CHANGED_KEEP_ALIVE; | |
2585 | ||
8d61ffa5 | 2586 | sdata_lock(sdata); |
ac8dd506 | 2587 | ieee80211_bss_info_change_notify(sdata, changed); |
8d61ffa5 | 2588 | sdata_unlock(sdata); |
ac8dd506 | 2589 | break; |
6e0bd6c3 | 2590 | case NL80211_IFTYPE_OCB: |
239281f8 RL |
2591 | changed |= BSS_CHANGED_OCB; |
2592 | ieee80211_bss_info_change_notify(sdata, changed); | |
6e0bd6c3 | 2593 | break; |
f2753ddb | 2594 | case NL80211_IFTYPE_ADHOC: |
ac8dd506 | 2595 | changed |= BSS_CHANGED_IBSS; |
fc0561dc | 2596 | fallthrough; |
f2753ddb | 2597 | case NL80211_IFTYPE_AP: |
339afbf4 | 2598 | changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS; |
e7979ac7 | 2599 | |
bc847970 PKC |
2600 | if (sdata->vif.bss_conf.ftm_responder == 1 && |
2601 | wiphy_ext_feature_isset(sdata->local->hw.wiphy, | |
2602 | NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER)) | |
2603 | changed |= BSS_CHANGED_FTM_RESPONDER; | |
2604 | ||
1041638f | 2605 | if (sdata->vif.type == NL80211_IFTYPE_AP) { |
e7979ac7 AN |
2606 | changed |= BSS_CHANGED_AP_PROBE_RESP; |
2607 | ||
bfd8403a | 2608 | if (rcu_access_pointer(sdata->deflink.u.ap.beacon)) |
b327c84c GG |
2609 | drv_start_ap(local, sdata, |
2610 | sdata->deflink.conf); | |
1041638f | 2611 | } |
fc0561dc | 2612 | fallthrough; |
f2753ddb | 2613 | case NL80211_IFTYPE_MESH_POINT: |
8da34932 JB |
2614 | if (sdata->vif.bss_conf.enable_beacon) { |
2615 | changed |= BSS_CHANGED_BEACON | | |
2616 | BSS_CHANGED_BEACON_ENABLED; | |
2617 | ieee80211_bss_info_change_notify(sdata, changed); | |
2618 | } | |
f2753ddb | 2619 | break; |
167e33f4 AB |
2620 | case NL80211_IFTYPE_NAN: |
2621 | res = ieee80211_reconfig_nan(sdata); | |
2622 | if (res < 0) { | |
2623 | ieee80211_handle_reconfig_failure(local); | |
2624 | return res; | |
2625 | } | |
2626 | break; | |
f2753ddb JB |
2627 | case NL80211_IFTYPE_AP_VLAN: |
2628 | case NL80211_IFTYPE_MONITOR: | |
98104fde | 2629 | case NL80211_IFTYPE_P2P_DEVICE: |
b205786e | 2630 | /* nothing to do */ |
f142c6b9 | 2631 | break; |
f2753ddb | 2632 | case NL80211_IFTYPE_UNSPECIFIED: |
2e161f78 | 2633 | case NUM_NL80211_IFTYPES: |
2ca27bcf JB |
2634 | case NL80211_IFTYPE_P2P_CLIENT: |
2635 | case NL80211_IFTYPE_P2P_GO: | |
70d9c599 | 2636 | case NL80211_IFTYPE_WDS: |
f2753ddb JB |
2637 | WARN_ON(1); |
2638 | break; | |
2639 | } | |
2640 | } | |
2641 | ||
4a733ef1 | 2642 | ieee80211_recalc_ps(local); |
8e1b23b9 | 2643 | |
6e1b1b24 EP |
2644 | /* |
2645 | * The sta might be in psm against the ap (e.g. because | |
2646 | * this was the state before a hw restart), so we | |
2647 | * explicitly send a null packet in order to make sure | |
2648 | * it'll sync against the ap (and get out of psm). | |
2649 | */ | |
2650 | if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) { | |
2651 | list_for_each_entry(sdata, &local->interfaces, list) { | |
2652 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
2653 | continue; | |
20f544ee JB |
2654 | if (!sdata->u.mgd.associated) |
2655 | continue; | |
6e1b1b24 | 2656 | |
076cdcb1 | 2657 | ieee80211_send_nullfunc(local, sdata, false); |
6e1b1b24 EP |
2658 | } |
2659 | } | |
2660 | ||
2e8d397e | 2661 | /* APs are now beaconing, add back stations */ |
48c5d82a JB |
2662 | list_for_each_entry(sdata, &local->interfaces, list) { |
2663 | if (!ieee80211_sdata_running(sdata)) | |
2e8d397e AN |
2664 | continue; |
2665 | ||
48c5d82a JB |
2666 | sdata_lock(sdata); |
2667 | switch (sdata->vif.type) { | |
2668 | case NL80211_IFTYPE_AP_VLAN: | |
2669 | case NL80211_IFTYPE_AP: | |
2670 | ieee80211_reconfig_stations(sdata); | |
2671 | break; | |
2672 | default: | |
2673 | break; | |
2674 | } | |
2675 | sdata_unlock(sdata); | |
2e8d397e | 2676 | } |
2e8d397e | 2677 | |
7b21aea0 | 2678 | /* add back keys */ |
f9dca80b | 2679 | list_for_each_entry(sdata, &local->interfaces, list) |
624ff4b2 | 2680 | ieee80211_reenable_keys(sdata); |
7b21aea0 | 2681 | |
0d440ea2 EP |
2682 | /* Reconfigure sched scan if it was interrupted by FW restart */ |
2683 | mutex_lock(&local->mtx); | |
2684 | sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, | |
2685 | lockdep_is_held(&local->mtx)); | |
2686 | sched_scan_req = rcu_dereference_protected(local->sched_scan_req, | |
2687 | lockdep_is_held(&local->mtx)); | |
2688 | if (sched_scan_sdata && sched_scan_req) | |
2689 | /* | |
2690 | * Sched scan stopped, but we don't want to report it. Instead, | |
2691 | * we're trying to reschedule. However, if more than one scan | |
2692 | * plan was set, we cannot reschedule since we don't know which | |
2693 | * scan plan was currently running (and some scan plans may have | |
2694 | * already finished). | |
2695 | */ | |
2696 | if (sched_scan_req->n_scan_plans > 1 || | |
2697 | __ieee80211_request_sched_scan_start(sched_scan_sdata, | |
b9f628fc EP |
2698 | sched_scan_req)) { |
2699 | RCU_INIT_POINTER(local->sched_scan_sdata, NULL); | |
2700 | RCU_INIT_POINTER(local->sched_scan_req, NULL); | |
0d440ea2 | 2701 | sched_scan_stopped = true; |
b9f628fc | 2702 | } |
0d440ea2 EP |
2703 | mutex_unlock(&local->mtx); |
2704 | ||
2705 | if (sched_scan_stopped) | |
a05829a7 | 2706 | cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0); |
0d440ea2 | 2707 | |
c6209488 | 2708 | wake_up: |
04800ada | 2709 | |
3c3e21e7 JB |
2710 | if (local->monitors == local->open_count && local->monitors > 0) |
2711 | ieee80211_add_virtual_monitor(local); | |
2712 | ||
2a419056 JB |
2713 | /* |
2714 | * Clear the WLAN_STA_BLOCK_BA flag so new aggregation | |
2715 | * sessions can be established after a resume. | |
2716 | * | |
2717 | * Also tear down aggregation sessions since reconfiguring | |
2718 | * them in a hardware restart scenario is not easily done | |
2719 | * right now, and the hardware will have lost information | |
2720 | * about the sessions, but we and the AP still think they | |
2721 | * are active. This is really a workaround though. | |
2722 | */ | |
30686bf7 | 2723 | if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { |
2a419056 JB |
2724 | mutex_lock(&local->sta_mtx); |
2725 | ||
2726 | list_for_each_entry(sta, &local->sta_list, list) { | |
27392719 EP |
2727 | if (!local->resuming) |
2728 | ieee80211_sta_tear_down_BA_sessions( | |
2729 | sta, AGG_STOP_LOCAL_REQUEST); | |
c2c98fde | 2730 | clear_sta_flag(sta, WLAN_STA_BLOCK_BA); |
74e2bd1f | 2731 | } |
2a419056 JB |
2732 | |
2733 | mutex_unlock(&local->sta_mtx); | |
74e2bd1f | 2734 | } |
74e2bd1f | 2735 | |
13dee10b JB |
2736 | /* |
2737 | * If this is for hw restart things are still running. | |
2738 | * We may want to change that later, however. | |
2739 | */ | |
2740 | if (local->open_count && (!suspended || reconfig_due_to_wowlan)) | |
2741 | drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART); | |
2742 | ||
2316380f | 2743 | if (local->in_reconfig) { |
7d352ccf | 2744 | in_reconfig = local->in_reconfig; |
2316380f SS |
2745 | local->in_reconfig = false; |
2746 | barrier(); | |
2747 | ||
2748 | /* Restart deferred ROCs */ | |
2749 | mutex_lock(&local->mtx); | |
2750 | ieee80211_start_next_roc(local); | |
2751 | mutex_unlock(&local->mtx); | |
f8891461 NG |
2752 | |
2753 | /* Requeue all works */ | |
2754 | list_for_each_entry(sdata, &local->interfaces, list) | |
2755 | ieee80211_queue_work(&local->hw, &sdata->work); | |
2316380f SS |
2756 | } |
2757 | ||
445ea4e8 | 2758 | ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
2759 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
2760 | false); | |
f2753ddb | 2761 | |
7d352ccf YC |
2762 | if (in_reconfig) { |
2763 | list_for_each_entry(sdata, &local->interfaces, list) { | |
2764 | if (!ieee80211_sdata_running(sdata)) | |
2765 | continue; | |
2766 | if (sdata->vif.type == NL80211_IFTYPE_STATION) | |
2767 | ieee80211_sta_restart(sdata); | |
2768 | } | |
2769 | } | |
2770 | ||
b0485e9f | 2771 | if (!suspended) |
5bb644a0 JB |
2772 | return 0; |
2773 | ||
2774 | #ifdef CONFIG_PM | |
ceb99fe0 | 2775 | /* first set suspended false, then resuming */ |
5bb644a0 | 2776 | local->suspended = false; |
ceb99fe0 JB |
2777 | mb(); |
2778 | local->resuming = false; | |
5bb644a0 | 2779 | |
74430f94 | 2780 | ieee80211_flush_completed_scan(local, false); |
9120d94e | 2781 | |
0f8b8245 | 2782 | if (local->open_count && !reconfig_due_to_wowlan) |
cf2c92d8 EP |
2783 | drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND); |
2784 | ||
b8360ab8 JB |
2785 | list_for_each_entry(sdata, &local->interfaces, list) { |
2786 | if (!ieee80211_sdata_running(sdata)) | |
2787 | continue; | |
2788 | if (sdata->vif.type == NL80211_IFTYPE_STATION) | |
2789 | ieee80211_sta_restart(sdata); | |
2790 | } | |
2791 | ||
26d59535 | 2792 | mod_timer(&local->sta_cleanup, jiffies + 1); |
5bb644a0 JB |
2793 | #else |
2794 | WARN_ON(1); | |
2795 | #endif | |
d43c6b6e | 2796 | |
f2753ddb JB |
2797 | return 0; |
2798 | } | |
42935eca | 2799 | |
7d352ccf | 2800 | static void ieee80211_reconfig_disconnect(struct ieee80211_vif *vif, u8 flag) |
95acac61 JB |
2801 | { |
2802 | struct ieee80211_sub_if_data *sdata; | |
2803 | struct ieee80211_local *local; | |
2804 | struct ieee80211_key *key; | |
2805 | ||
2806 | if (WARN_ON(!vif)) | |
2807 | return; | |
2808 | ||
2809 | sdata = vif_to_sdata(vif); | |
2810 | local = sdata->local; | |
2811 | ||
7d352ccf YC |
2812 | if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_RESUME && |
2813 | !local->resuming)) | |
2814 | return; | |
2815 | ||
2816 | if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_HW_RESTART && | |
2817 | !local->in_reconfig)) | |
95acac61 JB |
2818 | return; |
2819 | ||
2820 | if (WARN_ON(vif->type != NL80211_IFTYPE_STATION)) | |
2821 | return; | |
2822 | ||
7d352ccf | 2823 | sdata->flags |= flag; |
95acac61 JB |
2824 | |
2825 | mutex_lock(&local->key_mtx); | |
2826 | list_for_each_entry(key, &sdata->key_list, list) | |
2827 | key->flags |= KEY_FLAG_TAINTED; | |
2828 | mutex_unlock(&local->key_mtx); | |
2829 | } | |
7d352ccf YC |
2830 | |
2831 | void ieee80211_hw_restart_disconnect(struct ieee80211_vif *vif) | |
2832 | { | |
2833 | ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_HW_RESTART); | |
2834 | } | |
2835 | EXPORT_SYMBOL_GPL(ieee80211_hw_restart_disconnect); | |
2836 | ||
2837 | void ieee80211_resume_disconnect(struct ieee80211_vif *vif) | |
2838 | { | |
2839 | ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_RESUME); | |
2840 | } | |
95acac61 JB |
2841 | EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect); |
2842 | ||
e9aac179 | 2843 | void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, |
d8675a63 | 2844 | struct ieee80211_link_data *link) |
0f78231b | 2845 | { |
04ecd257 JB |
2846 | struct ieee80211_local *local = sdata->local; |
2847 | struct ieee80211_chanctx_conf *chanctx_conf; | |
2848 | struct ieee80211_chanctx *chanctx; | |
025e6be2 | 2849 | |
04ecd257 | 2850 | mutex_lock(&local->chanctx_mtx); |
0f78231b | 2851 | |
d8675a63 | 2852 | chanctx_conf = rcu_dereference_protected(link->conf->chanctx_conf, |
d0a9123e | 2853 | lockdep_is_held(&local->chanctx_mtx)); |
0f78231b | 2854 | |
c189a685 AO |
2855 | /* |
2856 | * This function can be called from a work, thus it may be possible | |
2857 | * that the chanctx_conf is removed (due to a disconnection, for | |
2858 | * example). | |
2859 | * So nothing should be done in such case. | |
2860 | */ | |
2861 | if (!chanctx_conf) | |
5d8e4237 | 2862 | goto unlock; |
0f78231b | 2863 | |
04ecd257 JB |
2864 | chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); |
2865 | ieee80211_recalc_smps_chanctx(local, chanctx); | |
5d8e4237 | 2866 | unlock: |
04ecd257 | 2867 | mutex_unlock(&local->chanctx_mtx); |
0f78231b | 2868 | } |
8e664fb3 | 2869 | |
0cbf348a AO |
2870 | void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, |
2871 | int link_id) | |
21f659bf EP |
2872 | { |
2873 | struct ieee80211_local *local = sdata->local; | |
2874 | struct ieee80211_chanctx_conf *chanctx_conf; | |
2875 | struct ieee80211_chanctx *chanctx; | |
0cbf348a | 2876 | int i; |
21f659bf EP |
2877 | |
2878 | mutex_lock(&local->chanctx_mtx); | |
2879 | ||
0cbf348a AO |
2880 | for (i = 0; i < ARRAY_SIZE(sdata->vif.link_conf); i++) { |
2881 | struct ieee80211_bss_conf *bss_conf; | |
21f659bf | 2882 | |
0cbf348a AO |
2883 | if (link_id >= 0 && link_id != i) |
2884 | continue; | |
21f659bf | 2885 | |
0cbf348a AO |
2886 | rcu_read_lock(); |
2887 | bss_conf = rcu_dereference(sdata->vif.link_conf[i]); | |
2888 | if (!bss_conf) { | |
2889 | rcu_read_unlock(); | |
2890 | continue; | |
2891 | } | |
2892 | ||
2893 | chanctx_conf = rcu_dereference_protected(bss_conf->chanctx_conf, | |
2894 | lockdep_is_held(&local->chanctx_mtx)); | |
2895 | /* | |
2896 | * Since we hold the chanctx_mtx (checked above) | |
2897 | * we can take the chanctx_conf pointer out of the | |
2898 | * RCU critical section, it cannot go away without | |
2899 | * the mutex. Just the way we reached it could - in | |
2900 | * theory - go away, but we don't really care and | |
2901 | * it really shouldn't happen anyway. | |
2902 | */ | |
2903 | rcu_read_unlock(); | |
2904 | ||
efe9c2bf | 2905 | if (!chanctx_conf) |
0cbf348a AO |
2906 | goto unlock; |
2907 | ||
2908 | chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, | |
2909 | conf); | |
2910 | ieee80211_recalc_chanctx_min_def(local, chanctx); | |
2911 | } | |
21f659bf EP |
2912 | unlock: |
2913 | mutex_unlock(&local->chanctx_mtx); | |
2914 | } | |
2915 | ||
8e664fb3 JB |
2916 | size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset) |
2917 | { | |
2918 | size_t pos = offset; | |
2919 | ||
2920 | while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC) | |
2921 | pos += 2 + ies[pos + 1]; | |
2922 | ||
2923 | return pos; | |
2924 | } | |
615f7b9b | 2925 | |
ef96a842 | 2926 | u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, |
42e7aa77 AS |
2927 | u16 cap) |
2928 | { | |
2929 | __le16 tmp; | |
2930 | ||
2931 | *pos++ = WLAN_EID_HT_CAPABILITY; | |
2932 | *pos++ = sizeof(struct ieee80211_ht_cap); | |
2933 | memset(pos, 0, sizeof(struct ieee80211_ht_cap)); | |
2934 | ||
2935 | /* capability flags */ | |
2936 | tmp = cpu_to_le16(cap); | |
2937 | memcpy(pos, &tmp, sizeof(u16)); | |
2938 | pos += sizeof(u16); | |
2939 | ||
2940 | /* AMPDU parameters */ | |
ef96a842 BG |
2941 | *pos++ = ht_cap->ampdu_factor | |
2942 | (ht_cap->ampdu_density << | |
42e7aa77 AS |
2943 | IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT); |
2944 | ||
2945 | /* MCS set */ | |
ef96a842 BG |
2946 | memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs)); |
2947 | pos += sizeof(ht_cap->mcs); | |
42e7aa77 AS |
2948 | |
2949 | /* extended capabilities */ | |
2950 | pos += sizeof(__le16); | |
2951 | ||
2952 | /* BF capabilities */ | |
2953 | pos += sizeof(__le32); | |
2954 | ||
2955 | /* antenna selection */ | |
2956 | pos += sizeof(u8); | |
2957 | ||
2958 | return pos; | |
2959 | } | |
2960 | ||
ba0afa2f | 2961 | u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, |
cc3983d8 | 2962 | u32 cap) |
ba0afa2f MP |
2963 | { |
2964 | __le32 tmp; | |
2965 | ||
2966 | *pos++ = WLAN_EID_VHT_CAPABILITY; | |
d4950281 MP |
2967 | *pos++ = sizeof(struct ieee80211_vht_cap); |
2968 | memset(pos, 0, sizeof(struct ieee80211_vht_cap)); | |
ba0afa2f MP |
2969 | |
2970 | /* capability flags */ | |
2971 | tmp = cpu_to_le32(cap); | |
2972 | memcpy(pos, &tmp, sizeof(u32)); | |
2973 | pos += sizeof(u32); | |
2974 | ||
2975 | /* VHT MCS set */ | |
2976 | memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs)); | |
2977 | pos += sizeof(vht_cap->vht_mcs); | |
2978 | ||
2979 | return pos; | |
2980 | } | |
2981 | ||
60ad72da SE |
2982 | u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) |
2983 | { | |
2984 | const struct ieee80211_sta_he_cap *he_cap; | |
2985 | struct ieee80211_supported_band *sband; | |
2986 | u8 n; | |
2987 | ||
2988 | sband = ieee80211_get_sband(sdata); | |
2989 | if (!sband) | |
2990 | return 0; | |
2991 | ||
2992 | he_cap = ieee80211_get_he_iftype_cap(sband, iftype); | |
2993 | if (!he_cap) | |
2994 | return 0; | |
2995 | ||
2996 | n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); | |
2997 | return 2 + 1 + | |
2998 | sizeof(he_cap->he_cap_elem) + n + | |
2999 | ieee80211_he_ppe_size(he_cap->ppe_thres[0], | |
3000 | he_cap->he_cap_elem.phy_cap_info); | |
3001 | } | |
3002 | ||
ba323e29 | 3003 | u8 *ieee80211_ie_build_he_cap(ieee80211_conn_flags_t disable_flags, u8 *pos, |
41cbb0f5 LC |
3004 | const struct ieee80211_sta_he_cap *he_cap, |
3005 | u8 *end) | |
3006 | { | |
1f2c1044 | 3007 | struct ieee80211_he_cap_elem elem; |
41cbb0f5 LC |
3008 | u8 n; |
3009 | u8 ie_len; | |
3010 | u8 *orig_pos = pos; | |
3011 | ||
3012 | /* Make sure we have place for the IE */ | |
3013 | /* | |
3014 | * TODO: the 1 added is because this temporarily is under the EXTENSION | |
3015 | * IE. Get rid of it when it moves. | |
3016 | */ | |
3017 | if (!he_cap) | |
3018 | return orig_pos; | |
3019 | ||
1f2c1044 JB |
3020 | /* modify on stack first to calculate 'n' and 'ie_len' correctly */ |
3021 | elem = he_cap->he_cap_elem; | |
3022 | ||
ba323e29 | 3023 | if (disable_flags & IEEE80211_CONN_DISABLE_40MHZ) |
1f2c1044 JB |
3024 | elem.phy_cap_info[0] &= |
3025 | ~(IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G | | |
3026 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G); | |
3027 | ||
ba323e29 | 3028 | if (disable_flags & IEEE80211_CONN_DISABLE_160MHZ) |
1f2c1044 JB |
3029 | elem.phy_cap_info[0] &= |
3030 | ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; | |
3031 | ||
ba323e29 | 3032 | if (disable_flags & IEEE80211_CONN_DISABLE_80P80MHZ) |
1f2c1044 JB |
3033 | elem.phy_cap_info[0] &= |
3034 | ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; | |
3035 | ||
3036 | n = ieee80211_he_mcs_nss_size(&elem); | |
41cbb0f5 LC |
3037 | ie_len = 2 + 1 + |
3038 | sizeof(he_cap->he_cap_elem) + n + | |
3039 | ieee80211_he_ppe_size(he_cap->ppe_thres[0], | |
3040 | he_cap->he_cap_elem.phy_cap_info); | |
3041 | ||
3042 | if ((end - pos) < ie_len) | |
3043 | return orig_pos; | |
3044 | ||
3045 | *pos++ = WLAN_EID_EXTENSION; | |
3046 | pos++; /* We'll set the size later below */ | |
3047 | *pos++ = WLAN_EID_EXT_HE_CAPABILITY; | |
3048 | ||
3049 | /* Fixed data */ | |
1f2c1044 JB |
3050 | memcpy(pos, &elem, sizeof(elem)); |
3051 | pos += sizeof(elem); | |
41cbb0f5 LC |
3052 | |
3053 | memcpy(pos, &he_cap->he_mcs_nss_supp, n); | |
3054 | pos += n; | |
3055 | ||
3056 | /* Check if PPE Threshold should be present */ | |
3057 | if ((he_cap->he_cap_elem.phy_cap_info[6] & | |
3058 | IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0) | |
3059 | goto end; | |
3060 | ||
3061 | /* | |
3062 | * Calculate how many PPET16/PPET8 pairs are to come. Algorithm: | |
3063 | * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK) | |
3064 | */ | |
3065 | n = hweight8(he_cap->ppe_thres[0] & | |
3066 | IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); | |
3067 | n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >> | |
3068 | IEEE80211_PPE_THRES_NSS_POS)); | |
3069 | ||
3070 | /* | |
3071 | * Each pair is 6 bits, and we need to add the 7 "header" bits to the | |
3072 | * total size. | |
3073 | */ | |
3074 | n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7; | |
3075 | n = DIV_ROUND_UP(n, 8); | |
3076 | ||
3077 | /* Copy PPE Thresholds */ | |
3078 | memcpy(pos, &he_cap->ppe_thres, n); | |
3079 | pos += n; | |
3080 | ||
3081 | end: | |
3082 | orig_pos[1] = (pos - orig_pos) - 2; | |
3083 | return pos; | |
3084 | } | |
3085 | ||
24a2042c | 3086 | void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata, |
abd27d06 | 3087 | enum ieee80211_smps_mode smps_mode, |
24a2042c RM |
3088 | struct sk_buff *skb) |
3089 | { | |
3090 | struct ieee80211_supported_band *sband; | |
3091 | const struct ieee80211_sband_iftype_data *iftd; | |
3092 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); | |
3093 | u8 *pos; | |
3094 | u16 cap; | |
3095 | ||
65be6aa3 JB |
3096 | if (!cfg80211_any_usable_channels(sdata->local->hw.wiphy, |
3097 | BIT(NL80211_BAND_6GHZ), | |
3098 | IEEE80211_CHAN_NO_HE)) | |
24a2042c RM |
3099 | return; |
3100 | ||
65be6aa3 JB |
3101 | sband = sdata->local->hw.wiphy->bands[NL80211_BAND_6GHZ]; |
3102 | ||
24a2042c | 3103 | iftd = ieee80211_get_sband_iftype_data(sband, iftype); |
65be6aa3 | 3104 | if (!iftd) |
24a2042c RM |
3105 | return; |
3106 | ||
65ad3ef9 RM |
3107 | /* Check for device HE 6 GHz capability before adding element */ |
3108 | if (!iftd->he_6ghz_capa.capa) | |
3109 | return; | |
3110 | ||
24a2042c RM |
3111 | cap = le16_to_cpu(iftd->he_6ghz_capa.capa); |
3112 | cap &= ~IEEE80211_HE_6GHZ_CAP_SM_PS; | |
3113 | ||
abd27d06 | 3114 | switch (smps_mode) { |
24a2042c RM |
3115 | case IEEE80211_SMPS_AUTOMATIC: |
3116 | case IEEE80211_SMPS_NUM_MODES: | |
3117 | WARN_ON(1); | |
fc0561dc | 3118 | fallthrough; |
24a2042c RM |
3119 | case IEEE80211_SMPS_OFF: |
3120 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DISABLED, | |
3121 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
3122 | break; | |
3123 | case IEEE80211_SMPS_STATIC: | |
3124 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_STATIC, | |
3125 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
3126 | break; | |
3127 | case IEEE80211_SMPS_DYNAMIC: | |
3128 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DYNAMIC, | |
3129 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
3130 | break; | |
3131 | } | |
3132 | ||
3133 | pos = skb_put(skb, 2 + 1 + sizeof(cap)); | |
2ad2274c IP |
3134 | ieee80211_write_he_6ghz_cap(pos, cpu_to_le16(cap), |
3135 | pos + 2 + 1 + sizeof(cap)); | |
24a2042c RM |
3136 | } |
3137 | ||
074d46d1 | 3138 | u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, |
4bf88530 | 3139 | const struct cfg80211_chan_def *chandef, |
57f255f5 | 3140 | u16 prot_mode, bool rifs_mode) |
42e7aa77 | 3141 | { |
074d46d1 | 3142 | struct ieee80211_ht_operation *ht_oper; |
42e7aa77 | 3143 | /* Build HT Information */ |
074d46d1 JB |
3144 | *pos++ = WLAN_EID_HT_OPERATION; |
3145 | *pos++ = sizeof(struct ieee80211_ht_operation); | |
3146 | ht_oper = (struct ieee80211_ht_operation *)pos; | |
4bf88530 JB |
3147 | ht_oper->primary_chan = ieee80211_frequency_to_channel( |
3148 | chandef->chan->center_freq); | |
3149 | switch (chandef->width) { | |
3150 | case NL80211_CHAN_WIDTH_160: | |
3151 | case NL80211_CHAN_WIDTH_80P80: | |
3152 | case NL80211_CHAN_WIDTH_80: | |
3153 | case NL80211_CHAN_WIDTH_40: | |
3154 | if (chandef->center_freq1 > chandef->chan->center_freq) | |
3155 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
3156 | else | |
3157 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
42e7aa77 | 3158 | break; |
5dca295d IP |
3159 | case NL80211_CHAN_WIDTH_320: |
3160 | /* HT information element should not be included on 6GHz */ | |
3161 | WARN_ON(1); | |
3162 | return pos; | |
42e7aa77 | 3163 | default: |
074d46d1 | 3164 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE; |
42e7aa77 AS |
3165 | break; |
3166 | } | |
aee286c2 | 3167 | if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && |
4bf88530 JB |
3168 | chandef->width != NL80211_CHAN_WIDTH_20_NOHT && |
3169 | chandef->width != NL80211_CHAN_WIDTH_20) | |
074d46d1 | 3170 | ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; |
ff3cc5f4 | 3171 | |
57f255f5 AN |
3172 | if (rifs_mode) |
3173 | ht_oper->ht_param |= IEEE80211_HT_PARAM_RIFS_MODE; | |
3174 | ||
431e3154 | 3175 | ht_oper->operation_mode = cpu_to_le16(prot_mode); |
074d46d1 | 3176 | ht_oper->stbc_param = 0x0000; |
42e7aa77 AS |
3177 | |
3178 | /* It seems that Basic MCS set and Supported MCS set | |
3179 | are identical for the first 10 bytes */ | |
074d46d1 JB |
3180 | memset(&ht_oper->basic_set, 0, 16); |
3181 | memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10); | |
42e7aa77 | 3182 | |
074d46d1 | 3183 | return pos + sizeof(struct ieee80211_ht_operation); |
42e7aa77 AS |
3184 | } |
3185 | ||
75d627d5 SW |
3186 | void ieee80211_ie_build_wide_bw_cs(u8 *pos, |
3187 | const struct cfg80211_chan_def *chandef) | |
3188 | { | |
3189 | *pos++ = WLAN_EID_WIDE_BW_CHANNEL_SWITCH; /* EID */ | |
3190 | *pos++ = 3; /* IE length */ | |
3191 | /* New channel width */ | |
3192 | switch (chandef->width) { | |
3193 | case NL80211_CHAN_WIDTH_80: | |
3194 | *pos++ = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
3195 | break; | |
3196 | case NL80211_CHAN_WIDTH_160: | |
3197 | *pos++ = IEEE80211_VHT_CHANWIDTH_160MHZ; | |
3198 | break; | |
3199 | case NL80211_CHAN_WIDTH_80P80: | |
3200 | *pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ; | |
3201 | break; | |
5dca295d IP |
3202 | case NL80211_CHAN_WIDTH_320: |
3203 | /* The behavior is not defined for 320 MHz channels */ | |
3204 | WARN_ON(1); | |
3205 | fallthrough; | |
75d627d5 SW |
3206 | default: |
3207 | *pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT; | |
3208 | } | |
3209 | ||
3210 | /* new center frequency segment 0 */ | |
3211 | *pos++ = ieee80211_frequency_to_channel(chandef->center_freq1); | |
3212 | /* new center frequency segment 1 */ | |
3213 | if (chandef->center_freq2) | |
3214 | *pos++ = ieee80211_frequency_to_channel(chandef->center_freq2); | |
3215 | else | |
3216 | *pos++ = 0; | |
3217 | } | |
3218 | ||
fb28ec0c AN |
3219 | u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, |
3220 | const struct cfg80211_chan_def *chandef) | |
3221 | { | |
3222 | struct ieee80211_vht_operation *vht_oper; | |
3223 | ||
3224 | *pos++ = WLAN_EID_VHT_OPERATION; | |
3225 | *pos++ = sizeof(struct ieee80211_vht_operation); | |
3226 | vht_oper = (struct ieee80211_vht_operation *)pos; | |
2fb51c35 | 3227 | vht_oper->center_freq_seg0_idx = ieee80211_frequency_to_channel( |
fb28ec0c AN |
3228 | chandef->center_freq1); |
3229 | if (chandef->center_freq2) | |
2fb51c35 | 3230 | vht_oper->center_freq_seg1_idx = |
fb28ec0c | 3231 | ieee80211_frequency_to_channel(chandef->center_freq2); |
f020ae40 | 3232 | else |
2fb51c35 | 3233 | vht_oper->center_freq_seg1_idx = 0x00; |
fb28ec0c AN |
3234 | |
3235 | switch (chandef->width) { | |
3236 | case NL80211_CHAN_WIDTH_160: | |
23665aaf JM |
3237 | /* |
3238 | * Convert 160 MHz channel width to new style as interop | |
3239 | * workaround. | |
3240 | */ | |
3241 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
2fb51c35 | 3242 | vht_oper->center_freq_seg1_idx = vht_oper->center_freq_seg0_idx; |
23665aaf | 3243 | if (chandef->chan->center_freq < chandef->center_freq1) |
2fb51c35 | 3244 | vht_oper->center_freq_seg0_idx -= 8; |
23665aaf | 3245 | else |
2fb51c35 | 3246 | vht_oper->center_freq_seg0_idx += 8; |
fb28ec0c AN |
3247 | break; |
3248 | case NL80211_CHAN_WIDTH_80P80: | |
23665aaf JM |
3249 | /* |
3250 | * Convert 80+80 MHz channel width to new style as interop | |
3251 | * workaround. | |
3252 | */ | |
3253 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
fb28ec0c AN |
3254 | break; |
3255 | case NL80211_CHAN_WIDTH_80: | |
3256 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
3257 | break; | |
5dca295d IP |
3258 | case NL80211_CHAN_WIDTH_320: |
3259 | /* VHT information element should not be included on 6GHz */ | |
3260 | WARN_ON(1); | |
3261 | return pos; | |
fb28ec0c AN |
3262 | default: |
3263 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT; | |
3264 | break; | |
3265 | } | |
3266 | ||
3267 | /* don't require special VHT peer rates */ | |
3268 | vht_oper->basic_mcs_set = cpu_to_le16(0xffff); | |
3269 | ||
3270 | return pos + sizeof(struct ieee80211_vht_operation); | |
3271 | } | |
3272 | ||
d1b7524b | 3273 | u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef) |
60ad72da SE |
3274 | { |
3275 | struct ieee80211_he_operation *he_oper; | |
d1b7524b | 3276 | struct ieee80211_he_6ghz_oper *he_6ghz_op; |
60ad72da | 3277 | u32 he_oper_params; |
d1b7524b RM |
3278 | u8 ie_len = 1 + sizeof(struct ieee80211_he_operation); |
3279 | ||
3280 | if (chandef->chan->band == NL80211_BAND_6GHZ) | |
3281 | ie_len += sizeof(struct ieee80211_he_6ghz_oper); | |
60ad72da SE |
3282 | |
3283 | *pos++ = WLAN_EID_EXTENSION; | |
d1b7524b | 3284 | *pos++ = ie_len; |
60ad72da SE |
3285 | *pos++ = WLAN_EID_EXT_HE_OPERATION; |
3286 | ||
3287 | he_oper_params = 0; | |
3288 | he_oper_params |= u32_encode_bits(1023, /* disabled */ | |
3289 | IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); | |
3290 | he_oper_params |= u32_encode_bits(1, | |
3291 | IEEE80211_HE_OPERATION_ER_SU_DISABLE); | |
3292 | he_oper_params |= u32_encode_bits(1, | |
3293 | IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); | |
d1b7524b RM |
3294 | if (chandef->chan->band == NL80211_BAND_6GHZ) |
3295 | he_oper_params |= u32_encode_bits(1, | |
3296 | IEEE80211_HE_OPERATION_6GHZ_OP_INFO); | |
60ad72da SE |
3297 | |
3298 | he_oper = (struct ieee80211_he_operation *)pos; | |
3299 | he_oper->he_oper_params = cpu_to_le32(he_oper_params); | |
3300 | ||
3301 | /* don't require special HE peer rates */ | |
3302 | he_oper->he_mcs_nss_set = cpu_to_le16(0xffff); | |
d1b7524b | 3303 | pos += sizeof(struct ieee80211_he_operation); |
60ad72da | 3304 | |
d1b7524b RM |
3305 | if (chandef->chan->band != NL80211_BAND_6GHZ) |
3306 | goto out; | |
60ad72da | 3307 | |
d1b7524b RM |
3308 | /* TODO add VHT operational */ |
3309 | he_6ghz_op = (struct ieee80211_he_6ghz_oper *)pos; | |
3310 | he_6ghz_op->minrate = 6; /* 6 Mbps */ | |
3311 | he_6ghz_op->primary = | |
3312 | ieee80211_frequency_to_channel(chandef->chan->center_freq); | |
3313 | he_6ghz_op->ccfs0 = | |
3314 | ieee80211_frequency_to_channel(chandef->center_freq1); | |
3315 | if (chandef->center_freq2) | |
3316 | he_6ghz_op->ccfs1 = | |
3317 | ieee80211_frequency_to_channel(chandef->center_freq2); | |
3318 | else | |
3319 | he_6ghz_op->ccfs1 = 0; | |
3320 | ||
3321 | switch (chandef->width) { | |
5dca295d IP |
3322 | case NL80211_CHAN_WIDTH_320: |
3323 | /* | |
3324 | * TODO: mesh operation is not defined over 6GHz 320 MHz | |
3325 | * channels. | |
3326 | */ | |
3327 | WARN_ON(1); | |
3328 | break; | |
d1b7524b RM |
3329 | case NL80211_CHAN_WIDTH_160: |
3330 | /* Convert 160 MHz channel width to new style as interop | |
3331 | * workaround. | |
3332 | */ | |
3333 | he_6ghz_op->control = | |
3334 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; | |
3335 | he_6ghz_op->ccfs1 = he_6ghz_op->ccfs0; | |
3336 | if (chandef->chan->center_freq < chandef->center_freq1) | |
3337 | he_6ghz_op->ccfs0 -= 8; | |
3338 | else | |
3339 | he_6ghz_op->ccfs0 += 8; | |
3340 | fallthrough; | |
3341 | case NL80211_CHAN_WIDTH_80P80: | |
3342 | he_6ghz_op->control = | |
3343 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; | |
3344 | break; | |
3345 | case NL80211_CHAN_WIDTH_80: | |
3346 | he_6ghz_op->control = | |
3347 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ; | |
3348 | break; | |
3349 | case NL80211_CHAN_WIDTH_40: | |
3350 | he_6ghz_op->control = | |
3351 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ; | |
3352 | break; | |
3353 | default: | |
3354 | he_6ghz_op->control = | |
3355 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ; | |
3356 | break; | |
3357 | } | |
3358 | ||
3359 | pos += sizeof(struct ieee80211_he_6ghz_oper); | |
3360 | ||
3361 | out: | |
3362 | return pos; | |
60ad72da SE |
3363 | } |
3364 | ||
8ac3c704 JB |
3365 | bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, |
3366 | struct cfg80211_chan_def *chandef) | |
42e7aa77 AS |
3367 | { |
3368 | enum nl80211_channel_type channel_type; | |
3369 | ||
8ac3c704 JB |
3370 | if (!ht_oper) |
3371 | return false; | |
42e7aa77 | 3372 | |
074d46d1 | 3373 | switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { |
42e7aa77 AS |
3374 | case IEEE80211_HT_PARAM_CHA_SEC_NONE: |
3375 | channel_type = NL80211_CHAN_HT20; | |
3376 | break; | |
3377 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: | |
3378 | channel_type = NL80211_CHAN_HT40PLUS; | |
3379 | break; | |
3380 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: | |
3381 | channel_type = NL80211_CHAN_HT40MINUS; | |
3382 | break; | |
3383 | default: | |
8ac3c704 | 3384 | return false; |
42e7aa77 AS |
3385 | } |
3386 | ||
8ac3c704 JB |
3387 | cfg80211_chandef_create(chandef, chandef->chan, channel_type); |
3388 | return true; | |
42e7aa77 AS |
3389 | } |
3390 | ||
2a333a0d | 3391 | bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, |
7eb26df2 JB |
3392 | const struct ieee80211_vht_operation *oper, |
3393 | const struct ieee80211_ht_operation *htop, | |
8ac3c704 | 3394 | struct cfg80211_chan_def *chandef) |
abcff6ef | 3395 | { |
8ac3c704 | 3396 | struct cfg80211_chan_def new = *chandef; |
7eb26df2 JB |
3397 | int cf0, cf1; |
3398 | int ccfs0, ccfs1, ccfs2; | |
3399 | int ccf0, ccf1; | |
33181ea7 SB |
3400 | u32 vht_cap; |
3401 | bool support_80_80 = false; | |
3402 | bool support_160 = false; | |
2a333a0d JB |
3403 | u8 ext_nss_bw_supp = u32_get_bits(vht_cap_info, |
3404 | IEEE80211_VHT_CAP_EXT_NSS_BW_MASK); | |
3405 | u8 supp_chwidth = u32_get_bits(vht_cap_info, | |
3406 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK); | |
8ac3c704 | 3407 | |
7eb26df2 | 3408 | if (!oper || !htop) |
8ac3c704 | 3409 | return false; |
abcff6ef | 3410 | |
33181ea7 SB |
3411 | vht_cap = hw->wiphy->bands[chandef->chan->band]->vht_cap.cap; |
3412 | support_160 = (vht_cap & (IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK | | |
3413 | IEEE80211_VHT_CAP_EXT_NSS_BW_MASK)); | |
3414 | support_80_80 = ((vht_cap & | |
3415 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) || | |
3416 | (vht_cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ && | |
3417 | vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) || | |
3418 | ((vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) >> | |
3419 | IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT > 1)); | |
7eb26df2 JB |
3420 | ccfs0 = oper->center_freq_seg0_idx; |
3421 | ccfs1 = oper->center_freq_seg1_idx; | |
3422 | ccfs2 = (le16_to_cpu(htop->operation_mode) & | |
3423 | IEEE80211_HT_OP_MODE_CCFS2_MASK) | |
3424 | >> IEEE80211_HT_OP_MODE_CCFS2_SHIFT; | |
3425 | ||
7eb26df2 | 3426 | ccf0 = ccfs0; |
2a333a0d JB |
3427 | |
3428 | /* if not supported, parse as though we didn't understand it */ | |
3429 | if (!ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW)) | |
3430 | ext_nss_bw_supp = 0; | |
3431 | ||
3432 | /* | |
3433 | * Cf. IEEE 802.11 Table 9-250 | |
3434 | * | |
3435 | * We really just consider that because it's inefficient to connect | |
3436 | * at a higher bandwidth than we'll actually be able to use. | |
3437 | */ | |
3438 | switch ((supp_chwidth << 4) | ext_nss_bw_supp) { | |
3439 | default: | |
3440 | case 0x00: | |
3441 | ccf1 = 0; | |
3442 | support_160 = false; | |
3443 | support_80_80 = false; | |
3444 | break; | |
3445 | case 0x01: | |
3446 | support_80_80 = false; | |
fc0561dc | 3447 | fallthrough; |
2a333a0d JB |
3448 | case 0x02: |
3449 | case 0x03: | |
7eb26df2 | 3450 | ccf1 = ccfs2; |
2a333a0d JB |
3451 | break; |
3452 | case 0x10: | |
3453 | ccf1 = ccfs1; | |
3454 | break; | |
3455 | case 0x11: | |
3456 | case 0x12: | |
3457 | if (!ccfs1) | |
3458 | ccf1 = ccfs2; | |
3459 | else | |
3460 | ccf1 = ccfs1; | |
3461 | break; | |
3462 | case 0x13: | |
3463 | case 0x20: | |
3464 | case 0x23: | |
3465 | ccf1 = ccfs1; | |
3466 | break; | |
3467 | } | |
7eb26df2 JB |
3468 | |
3469 | cf0 = ieee80211_channel_to_frequency(ccf0, chandef->chan->band); | |
3470 | cf1 = ieee80211_channel_to_frequency(ccf1, chandef->chan->band); | |
abcff6ef JD |
3471 | |
3472 | switch (oper->chan_width) { | |
3473 | case IEEE80211_VHT_CHANWIDTH_USE_HT: | |
7eb26df2 | 3474 | /* just use HT information directly */ |
abcff6ef JD |
3475 | break; |
3476 | case IEEE80211_VHT_CHANWIDTH_80MHZ: | |
8ac3c704 | 3477 | new.width = NL80211_CHAN_WIDTH_80; |
7eb26df2 | 3478 | new.center_freq1 = cf0; |
23665aaf | 3479 | /* If needed, adjust based on the newer interop workaround. */ |
7eb26df2 | 3480 | if (ccf1) { |
23665aaf JM |
3481 | unsigned int diff; |
3482 | ||
7eb26df2 | 3483 | diff = abs(ccf1 - ccf0); |
33181ea7 | 3484 | if ((diff == 8) && support_160) { |
23665aaf | 3485 | new.width = NL80211_CHAN_WIDTH_160; |
7eb26df2 | 3486 | new.center_freq1 = cf1; |
33181ea7 | 3487 | } else if ((diff > 8) && support_80_80) { |
23665aaf | 3488 | new.width = NL80211_CHAN_WIDTH_80P80; |
7eb26df2 | 3489 | new.center_freq2 = cf1; |
23665aaf JM |
3490 | } |
3491 | } | |
abcff6ef JD |
3492 | break; |
3493 | case IEEE80211_VHT_CHANWIDTH_160MHZ: | |
7eb26df2 | 3494 | /* deprecated encoding */ |
8ac3c704 | 3495 | new.width = NL80211_CHAN_WIDTH_160; |
7eb26df2 | 3496 | new.center_freq1 = cf0; |
abcff6ef JD |
3497 | break; |
3498 | case IEEE80211_VHT_CHANWIDTH_80P80MHZ: | |
7eb26df2 | 3499 | /* deprecated encoding */ |
8ac3c704 | 3500 | new.width = NL80211_CHAN_WIDTH_80P80; |
7eb26df2 JB |
3501 | new.center_freq1 = cf0; |
3502 | new.center_freq2 = cf1; | |
abcff6ef JD |
3503 | break; |
3504 | default: | |
8ac3c704 | 3505 | return false; |
abcff6ef JD |
3506 | } |
3507 | ||
8ac3c704 JB |
3508 | if (!cfg80211_chandef_valid(&new)) |
3509 | return false; | |
3510 | ||
3511 | *chandef = new; | |
3512 | return true; | |
abcff6ef JD |
3513 | } |
3514 | ||
774e00c2 | 3515 | void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation *eht_oper, |
1e0b3b0b IP |
3516 | bool support_160, bool support_320, |
3517 | struct cfg80211_chan_def *chandef) | |
3518 | { | |
3519 | struct ieee80211_eht_operation_info *info = (void *)eht_oper->optional; | |
3520 | ||
3521 | chandef->center_freq1 = | |
3522 | ieee80211_channel_to_frequency(info->ccfs0, | |
3523 | chandef->chan->band); | |
3524 | ||
3525 | switch (u8_get_bits(info->control, | |
3526 | IEEE80211_EHT_OPER_CHAN_WIDTH)) { | |
3527 | case IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ: | |
3528 | chandef->width = NL80211_CHAN_WIDTH_20; | |
3529 | break; | |
3530 | case IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ: | |
3531 | chandef->width = NL80211_CHAN_WIDTH_40; | |
3532 | break; | |
3533 | case IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ: | |
3534 | chandef->width = NL80211_CHAN_WIDTH_80; | |
3535 | break; | |
3536 | case IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ: | |
3537 | if (support_160) { | |
3538 | chandef->width = NL80211_CHAN_WIDTH_160; | |
3539 | chandef->center_freq1 = | |
3540 | ieee80211_channel_to_frequency(info->ccfs1, | |
3541 | chandef->chan->band); | |
3542 | } else { | |
3543 | chandef->width = NL80211_CHAN_WIDTH_80; | |
3544 | } | |
3545 | break; | |
3546 | case IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ: | |
3547 | if (support_320) { | |
3548 | chandef->width = NL80211_CHAN_WIDTH_320; | |
3549 | chandef->center_freq1 = | |
3550 | ieee80211_channel_to_frequency(info->ccfs1, | |
3551 | chandef->chan->band); | |
3552 | } else if (support_160) { | |
3553 | chandef->width = NL80211_CHAN_WIDTH_160; | |
3554 | } else { | |
3555 | chandef->width = NL80211_CHAN_WIDTH_80; | |
3556 | ||
3557 | if (chandef->center_freq1 > chandef->chan->center_freq) | |
3558 | chandef->center_freq1 -= 40; | |
3559 | else | |
3560 | chandef->center_freq1 += 40; | |
3561 | } | |
3562 | break; | |
3563 | } | |
3564 | } | |
3565 | ||
57fa5e85 JB |
3566 | bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, |
3567 | const struct ieee80211_he_operation *he_oper, | |
5dca295d | 3568 | const struct ieee80211_eht_operation *eht_oper, |
57fa5e85 JB |
3569 | struct cfg80211_chan_def *chandef) |
3570 | { | |
3571 | struct ieee80211_local *local = sdata->local; | |
3572 | struct ieee80211_supported_band *sband; | |
3573 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); | |
3574 | const struct ieee80211_sta_he_cap *he_cap; | |
5dca295d | 3575 | const struct ieee80211_sta_eht_cap *eht_cap; |
57fa5e85 JB |
3576 | struct cfg80211_chan_def he_chandef = *chandef; |
3577 | const struct ieee80211_he_6ghz_oper *he_6ghz_oper; | |
cb751b7a | 3578 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; |
5dca295d IP |
3579 | bool support_80_80, support_160, support_320; |
3580 | u8 he_phy_cap, eht_phy_cap; | |
57fa5e85 JB |
3581 | u32 freq; |
3582 | ||
3583 | if (chandef->chan->band != NL80211_BAND_6GHZ) | |
3584 | return true; | |
3585 | ||
3586 | sband = local->hw.wiphy->bands[NL80211_BAND_6GHZ]; | |
3587 | ||
3588 | he_cap = ieee80211_get_he_iftype_cap(sband, iftype); | |
3589 | if (!he_cap) { | |
3590 | sdata_info(sdata, "Missing iftype sband data/HE cap"); | |
3591 | return false; | |
3592 | } | |
3593 | ||
3594 | he_phy_cap = he_cap->he_cap_elem.phy_cap_info[0]; | |
3595 | support_160 = | |
3596 | he_phy_cap & | |
3597 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; | |
3598 | support_80_80 = | |
3599 | he_phy_cap & | |
3600 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; | |
3601 | ||
3602 | if (!he_oper) { | |
3603 | sdata_info(sdata, | |
3604 | "HE is not advertised on (on %d MHz), expect issues\n", | |
3605 | chandef->chan->center_freq); | |
3606 | return false; | |
3607 | } | |
3608 | ||
5dca295d IP |
3609 | eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype); |
3610 | if (!eht_cap) { | |
3611 | sdata_info(sdata, "Missing iftype sband data/EHT cap"); | |
3612 | eht_oper = NULL; | |
3613 | } | |
3614 | ||
57fa5e85 JB |
3615 | he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper); |
3616 | ||
3617 | if (!he_6ghz_oper) { | |
3618 | sdata_info(sdata, | |
3619 | "HE 6GHz operation missing (on %d MHz), expect issues\n", | |
3620 | chandef->chan->center_freq); | |
3621 | return false; | |
3622 | } | |
3623 | ||
5dca295d IP |
3624 | /* |
3625 | * The EHT operation IE does not contain the primary channel so the | |
3626 | * primary channel frequency should be taken from the 6 GHz operation | |
3627 | * information. | |
3628 | */ | |
57fa5e85 JB |
3629 | freq = ieee80211_channel_to_frequency(he_6ghz_oper->primary, |
3630 | NL80211_BAND_6GHZ); | |
3631 | he_chandef.chan = ieee80211_get_channel(sdata->local->hw.wiphy, freq); | |
3632 | ||
cb751b7a WG |
3633 | switch (u8_get_bits(he_6ghz_oper->control, |
3634 | IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO)) { | |
3635 | case IEEE80211_6GHZ_CTRL_REG_LPI_AP: | |
3636 | bss_conf->power_type = IEEE80211_REG_LPI_AP; | |
3637 | break; | |
3638 | case IEEE80211_6GHZ_CTRL_REG_SP_AP: | |
3639 | bss_conf->power_type = IEEE80211_REG_SP_AP; | |
3640 | break; | |
3641 | default: | |
3642 | bss_conf->power_type = IEEE80211_REG_UNSET_AP; | |
3643 | break; | |
3644 | } | |
3645 | ||
1e0b3b0b IP |
3646 | if (!eht_oper || |
3647 | !(eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT)) { | |
5dca295d IP |
3648 | switch (u8_get_bits(he_6ghz_oper->control, |
3649 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) { | |
3650 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ: | |
3651 | he_chandef.width = NL80211_CHAN_WIDTH_20; | |
3652 | break; | |
3653 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ: | |
3654 | he_chandef.width = NL80211_CHAN_WIDTH_40; | |
3655 | break; | |
3656 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ: | |
3657 | he_chandef.width = NL80211_CHAN_WIDTH_80; | |
3658 | break; | |
3659 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ: | |
3660 | he_chandef.width = NL80211_CHAN_WIDTH_80; | |
3661 | if (!he_6ghz_oper->ccfs1) | |
3662 | break; | |
3663 | if (abs(he_6ghz_oper->ccfs1 - he_6ghz_oper->ccfs0) == 8) { | |
3664 | if (support_160) | |
3665 | he_chandef.width = NL80211_CHAN_WIDTH_160; | |
3666 | } else { | |
3667 | if (support_80_80) | |
3668 | he_chandef.width = NL80211_CHAN_WIDTH_80P80; | |
3669 | } | |
3670 | break; | |
3671 | } | |
3672 | ||
3673 | if (he_chandef.width == NL80211_CHAN_WIDTH_160) { | |
3674 | he_chandef.center_freq1 = | |
3675 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, | |
3676 | NL80211_BAND_6GHZ); | |
3677 | } else { | |
3678 | he_chandef.center_freq1 = | |
3679 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs0, | |
3680 | NL80211_BAND_6GHZ); | |
3681 | if (support_80_80 || support_160) | |
3682 | he_chandef.center_freq2 = | |
3683 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, | |
3684 | NL80211_BAND_6GHZ); | |
3685 | } | |
3686 | } else { | |
3687 | eht_phy_cap = eht_cap->eht_cap_elem.phy_cap_info[0]; | |
3688 | support_320 = | |
3689 | eht_phy_cap & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ; | |
3690 | ||
774e00c2 | 3691 | ieee80211_chandef_eht_oper(eht_oper, support_160, |
1e0b3b0b | 3692 | support_320, &he_chandef); |
57fa5e85 JB |
3693 | } |
3694 | ||
3695 | if (!cfg80211_chandef_valid(&he_chandef)) { | |
3696 | sdata_info(sdata, | |
3697 | "HE 6GHz operation resulted in invalid chandef: %d MHz/%d/%d MHz/%d MHz\n", | |
3698 | he_chandef.chan ? he_chandef.chan->center_freq : 0, | |
3699 | he_chandef.width, | |
3700 | he_chandef.center_freq1, | |
3701 | he_chandef.center_freq2); | |
3702 | return false; | |
3703 | } | |
3704 | ||
3705 | *chandef = he_chandef; | |
3706 | ||
8fca2b87 | 3707 | return true; |
1d00ce80 TP |
3708 | } |
3709 | ||
3710 | bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper, | |
3711 | struct cfg80211_chan_def *chandef) | |
3712 | { | |
3713 | u32 oper_freq; | |
3714 | ||
3715 | if (!oper) | |
3716 | return false; | |
3717 | ||
3718 | switch (FIELD_GET(S1G_OPER_CH_WIDTH_OPER, oper->ch_width)) { | |
3719 | case IEEE80211_S1G_CHANWIDTH_1MHZ: | |
3720 | chandef->width = NL80211_CHAN_WIDTH_1; | |
3721 | break; | |
3722 | case IEEE80211_S1G_CHANWIDTH_2MHZ: | |
3723 | chandef->width = NL80211_CHAN_WIDTH_2; | |
3724 | break; | |
3725 | case IEEE80211_S1G_CHANWIDTH_4MHZ: | |
3726 | chandef->width = NL80211_CHAN_WIDTH_4; | |
3727 | break; | |
3728 | case IEEE80211_S1G_CHANWIDTH_8MHZ: | |
3729 | chandef->width = NL80211_CHAN_WIDTH_8; | |
3730 | break; | |
3731 | case IEEE80211_S1G_CHANWIDTH_16MHZ: | |
3732 | chandef->width = NL80211_CHAN_WIDTH_16; | |
3733 | break; | |
3734 | default: | |
3735 | return false; | |
3736 | } | |
3737 | ||
3738 | oper_freq = ieee80211_channel_to_freq_khz(oper->oper_ch, | |
3739 | NL80211_BAND_S1GHZ); | |
3740 | chandef->center_freq1 = KHZ_TO_MHZ(oper_freq); | |
3741 | chandef->freq1_offset = oper_freq % 1000; | |
3742 | ||
57fa5e85 JB |
3743 | return true; |
3744 | } | |
3745 | ||
3dc05935 | 3746 | int ieee80211_parse_bitrates(enum nl80211_chan_width width, |
2103dec1 SW |
3747 | const struct ieee80211_supported_band *sband, |
3748 | const u8 *srates, int srates_len, u32 *rates) | |
3749 | { | |
3dc05935 JB |
3750 | u32 rate_flags = ieee80211_chanwidth_rate_flags(width); |
3751 | int shift = ieee80211_chanwidth_get_shift(width); | |
2103dec1 SW |
3752 | struct ieee80211_rate *br; |
3753 | int brate, rate, i, j, count = 0; | |
3754 | ||
3755 | *rates = 0; | |
3756 | ||
3757 | for (i = 0; i < srates_len; i++) { | |
3758 | rate = srates[i] & 0x7f; | |
3759 | ||
3760 | for (j = 0; j < sband->n_bitrates; j++) { | |
3761 | br = &sband->bitrates[j]; | |
3762 | if ((rate_flags & br->flags) != rate_flags) | |
3763 | continue; | |
3764 | ||
3765 | brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); | |
3766 | if (brate == rate) { | |
3767 | *rates |= BIT(j); | |
3768 | count++; | |
3769 | break; | |
3770 | } | |
3771 | } | |
3772 | } | |
3773 | return count; | |
3774 | } | |
3775 | ||
fc8a7321 | 3776 | int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, |
6b77863b | 3777 | struct sk_buff *skb, bool need_basic, |
57fbcce3 | 3778 | enum nl80211_band band) |
768db343 | 3779 | { |
768db343 AN |
3780 | struct ieee80211_local *local = sdata->local; |
3781 | struct ieee80211_supported_band *sband; | |
2103dec1 | 3782 | int rate, shift; |
768db343 | 3783 | u8 i, rates, *pos; |
fc8a7321 | 3784 | u32 basic_rates = sdata->vif.bss_conf.basic_rates; |
2103dec1 | 3785 | u32 rate_flags; |
768db343 | 3786 | |
2103dec1 SW |
3787 | shift = ieee80211_vif_get_shift(&sdata->vif); |
3788 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
6b77863b | 3789 | sband = local->hw.wiphy->bands[band]; |
2103dec1 SW |
3790 | rates = 0; |
3791 | for (i = 0; i < sband->n_bitrates; i++) { | |
3792 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) | |
3793 | continue; | |
3794 | rates++; | |
3795 | } | |
768db343 AN |
3796 | if (rates > 8) |
3797 | rates = 8; | |
3798 | ||
3799 | if (skb_tailroom(skb) < rates + 2) | |
3800 | return -ENOMEM; | |
3801 | ||
3802 | pos = skb_put(skb, rates + 2); | |
3803 | *pos++ = WLAN_EID_SUPP_RATES; | |
3804 | *pos++ = rates; | |
3805 | for (i = 0; i < rates; i++) { | |
657c3e0c | 3806 | u8 basic = 0; |
2103dec1 SW |
3807 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) |
3808 | continue; | |
3809 | ||
657c3e0c AN |
3810 | if (need_basic && basic_rates & BIT(i)) |
3811 | basic = 0x80; | |
2103dec1 SW |
3812 | rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, |
3813 | 5 * (1 << shift)); | |
3814 | *pos++ = basic | (u8) rate; | |
768db343 AN |
3815 | } |
3816 | ||
3817 | return 0; | |
3818 | } | |
3819 | ||
fc8a7321 | 3820 | int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, |
6b77863b | 3821 | struct sk_buff *skb, bool need_basic, |
57fbcce3 | 3822 | enum nl80211_band band) |
768db343 | 3823 | { |
768db343 AN |
3824 | struct ieee80211_local *local = sdata->local; |
3825 | struct ieee80211_supported_band *sband; | |
cc63ec76 | 3826 | int rate, shift; |
768db343 | 3827 | u8 i, exrates, *pos; |
fc8a7321 | 3828 | u32 basic_rates = sdata->vif.bss_conf.basic_rates; |
2103dec1 SW |
3829 | u32 rate_flags; |
3830 | ||
3831 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
3832 | shift = ieee80211_vif_get_shift(&sdata->vif); | |
768db343 | 3833 | |
6b77863b | 3834 | sband = local->hw.wiphy->bands[band]; |
2103dec1 SW |
3835 | exrates = 0; |
3836 | for (i = 0; i < sband->n_bitrates; i++) { | |
3837 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) | |
3838 | continue; | |
3839 | exrates++; | |
3840 | } | |
3841 | ||
768db343 AN |
3842 | if (exrates > 8) |
3843 | exrates -= 8; | |
3844 | else | |
3845 | exrates = 0; | |
3846 | ||
3847 | if (skb_tailroom(skb) < exrates + 2) | |
3848 | return -ENOMEM; | |
3849 | ||
3850 | if (exrates) { | |
3851 | pos = skb_put(skb, exrates + 2); | |
3852 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
3853 | *pos++ = exrates; | |
3854 | for (i = 8; i < sband->n_bitrates; i++) { | |
657c3e0c | 3855 | u8 basic = 0; |
2103dec1 SW |
3856 | if ((rate_flags & sband->bitrates[i].flags) |
3857 | != rate_flags) | |
3858 | continue; | |
657c3e0c AN |
3859 | if (need_basic && basic_rates & BIT(i)) |
3860 | basic = 0x80; | |
2103dec1 SW |
3861 | rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, |
3862 | 5 * (1 << shift)); | |
3863 | *pos++ = basic | (u8) rate; | |
768db343 AN |
3864 | } |
3865 | } | |
3866 | return 0; | |
3867 | } | |
1dae27f8 WYG |
3868 | |
3869 | int ieee80211_ave_rssi(struct ieee80211_vif *vif) | |
3870 | { | |
3871 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
1dae27f8 | 3872 | |
bfd8403a | 3873 | if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) |
be6bcabc | 3874 | return 0; |
bfd8403a JB |
3875 | |
3876 | return -ewma_beacon_signal_read(&sdata->deflink.u.mgd.ave_beacon_signal); | |
1dae27f8 | 3877 | } |
0d8a0a17 | 3878 | EXPORT_SYMBOL_GPL(ieee80211_ave_rssi); |
04ecd257 JB |
3879 | |
3880 | u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) | |
3881 | { | |
3882 | if (!mcs) | |
3883 | return 1; | |
3884 | ||
3885 | /* TODO: consider rx_highest */ | |
3886 | ||
3887 | if (mcs->rx_mask[3]) | |
3888 | return 4; | |
3889 | if (mcs->rx_mask[2]) | |
3890 | return 3; | |
3891 | if (mcs->rx_mask[1]) | |
3892 | return 2; | |
3893 | return 1; | |
3894 | } | |
f4bda337 TP |
3895 | |
3896 | /** | |
3897 | * ieee80211_calculate_rx_timestamp - calculate timestamp in frame | |
3898 | * @local: mac80211 hw info struct | |
3899 | * @status: RX status | |
3900 | * @mpdu_len: total MPDU length (including FCS) | |
3901 | * @mpdu_offset: offset into MPDU to calculate timestamp at | |
3902 | * | |
3903 | * This function calculates the RX timestamp at the given MPDU offset, taking | |
3904 | * into account what the RX timestamp was. An offset of 0 will just normalize | |
3905 | * the timestamp to TSF at beginning of MPDU reception. | |
3906 | */ | |
3907 | u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, | |
3908 | struct ieee80211_rx_status *status, | |
3909 | unsigned int mpdu_len, | |
3910 | unsigned int mpdu_offset) | |
3911 | { | |
3912 | u64 ts = status->mactime; | |
3913 | struct rate_info ri; | |
3914 | u16 rate; | |
da388233 | 3915 | u8 n_ltf; |
f4bda337 TP |
3916 | |
3917 | if (WARN_ON(!ieee80211_have_rx_timestamp(status))) | |
3918 | return 0; | |
3919 | ||
3920 | memset(&ri, 0, sizeof(ri)); | |
3921 | ||
35f4962c JB |
3922 | ri.bw = status->bw; |
3923 | ||
f4bda337 | 3924 | /* Fill cfg80211 rate info */ |
da6a4352 | 3925 | switch (status->encoding) { |
da388233 AS |
3926 | case RX_ENC_HE: |
3927 | ri.flags |= RATE_INFO_FLAGS_HE_MCS; | |
3928 | ri.mcs = status->rate_idx; | |
3929 | ri.nss = status->nss; | |
3930 | ri.he_ru_alloc = status->he_ru; | |
3931 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) | |
3932 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; | |
3933 | ||
3934 | /* | |
3935 | * See P802.11ax_D6.0, section 27.3.4 for | |
3936 | * VHT PPDU format. | |
3937 | */ | |
3938 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
3939 | mpdu_offset += 2; | |
3940 | ts += 36; | |
3941 | ||
3942 | /* | |
3943 | * TODO: | |
3944 | * For HE MU PPDU, add the HE-SIG-B. | |
3945 | * For HE ER PPDU, add 8us for the HE-SIG-A. | |
3946 | * For HE TB PPDU, add 4us for the HE-STF. | |
3947 | * Add the HE-LTF durations - variable. | |
3948 | */ | |
3949 | } | |
3950 | ||
3951 | break; | |
da6a4352 | 3952 | case RX_ENC_HT: |
f4bda337 TP |
3953 | ri.mcs = status->rate_idx; |
3954 | ri.flags |= RATE_INFO_FLAGS_MCS; | |
7fdd69c5 | 3955 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) |
f4bda337 | 3956 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; |
da388233 AS |
3957 | |
3958 | /* | |
3959 | * See P802.11REVmd_D3.0, section 19.3.2 for | |
3960 | * HT PPDU format. | |
3961 | */ | |
3962 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
3963 | mpdu_offset += 2; | |
3964 | if (status->enc_flags & RX_ENC_FLAG_HT_GF) | |
3965 | ts += 24; | |
3966 | else | |
3967 | ts += 32; | |
3968 | ||
3969 | /* | |
3970 | * Add Data HT-LTFs per streams | |
3971 | * TODO: add Extension HT-LTFs, 4us per LTF | |
3972 | */ | |
3973 | n_ltf = ((ri.mcs >> 3) & 3) + 1; | |
3974 | n_ltf = n_ltf == 3 ? 4 : n_ltf; | |
3975 | ts += n_ltf * 4; | |
3976 | } | |
3977 | ||
da6a4352 JB |
3978 | break; |
3979 | case RX_ENC_VHT: | |
5614618e JB |
3980 | ri.flags |= RATE_INFO_FLAGS_VHT_MCS; |
3981 | ri.mcs = status->rate_idx; | |
8613c948 | 3982 | ri.nss = status->nss; |
7fdd69c5 | 3983 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) |
5614618e | 3984 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; |
da388233 AS |
3985 | |
3986 | /* | |
3987 | * See P802.11REVmd_D3.0, section 21.3.2 for | |
3988 | * VHT PPDU format. | |
3989 | */ | |
3990 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
3991 | mpdu_offset += 2; | |
3992 | ts += 36; | |
3993 | ||
3994 | /* | |
3995 | * Add VHT-LTFs per streams | |
3996 | */ | |
3997 | n_ltf = (ri.nss != 1) && (ri.nss % 2) ? | |
3998 | ri.nss + 1 : ri.nss; | |
3999 | ts += 4 * n_ltf; | |
4000 | } | |
4001 | ||
da6a4352 JB |
4002 | break; |
4003 | default: | |
4004 | WARN_ON(1); | |
fc0561dc | 4005 | fallthrough; |
da6a4352 | 4006 | case RX_ENC_LEGACY: { |
f4bda337 | 4007 | struct ieee80211_supported_band *sband; |
2103dec1 SW |
4008 | int shift = 0; |
4009 | int bitrate; | |
4010 | ||
da6a4352 JB |
4011 | switch (status->bw) { |
4012 | case RATE_INFO_BW_10: | |
2103dec1 | 4013 | shift = 1; |
da6a4352 JB |
4014 | break; |
4015 | case RATE_INFO_BW_5: | |
2103dec1 | 4016 | shift = 2; |
da6a4352 | 4017 | break; |
b51f3bee | 4018 | } |
f4bda337 TP |
4019 | |
4020 | sband = local->hw.wiphy->bands[status->band]; | |
2103dec1 SW |
4021 | bitrate = sband->bitrates[status->rate_idx].bitrate; |
4022 | ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); | |
f4a0f0c5 JB |
4023 | |
4024 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
57fbcce3 | 4025 | if (status->band == NL80211_BAND_5GHZ) { |
f4a0f0c5 JB |
4026 | ts += 20 << shift; |
4027 | mpdu_offset += 2; | |
7fdd69c5 | 4028 | } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) { |
f4a0f0c5 JB |
4029 | ts += 96; |
4030 | } else { | |
4031 | ts += 192; | |
4032 | } | |
4033 | } | |
da6a4352 JB |
4034 | break; |
4035 | } | |
f4bda337 TP |
4036 | } |
4037 | ||
4038 | rate = cfg80211_calculate_bitrate(&ri); | |
d86aa4f8 | 4039 | if (WARN_ONCE(!rate, |
f980ebc0 SS |
4040 | "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n", |
4041 | (unsigned long long)status->flag, status->rate_idx, | |
8613c948 | 4042 | status->nss)) |
d86aa4f8 | 4043 | return 0; |
f4bda337 TP |
4044 | |
4045 | /* rewind from end of MPDU */ | |
4046 | if (status->flag & RX_FLAG_MACTIME_END) | |
4047 | ts -= mpdu_len * 8 * 10 / rate; | |
4048 | ||
4049 | ts += mpdu_offset * 8 * 10 / rate; | |
4050 | ||
4051 | return ts; | |
4052 | } | |
164eb02d SW |
4053 | |
4054 | void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) | |
4055 | { | |
4056 | struct ieee80211_sub_if_data *sdata; | |
d2859df5 | 4057 | struct cfg80211_chan_def chandef; |
164eb02d | 4058 | |
4a199068 | 4059 | /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */ |
a05829a7 | 4060 | lockdep_assert_wiphy(local->hw.wiphy); |
4a199068 | 4061 | |
34a3740d | 4062 | mutex_lock(&local->mtx); |
164eb02d | 4063 | list_for_each_entry(sdata, &local->interfaces, list) { |
34a3740d JB |
4064 | /* it might be waiting for the local->mtx, but then |
4065 | * by the time it gets it, sdata->wdev.cac_started | |
4066 | * will no longer be true | |
4067 | */ | |
bfd8403a | 4068 | cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); |
164eb02d SW |
4069 | |
4070 | if (sdata->wdev.cac_started) { | |
d2859df5 | 4071 | chandef = sdata->vif.bss_conf.chandef; |
d8675a63 | 4072 | ieee80211_link_release_channel(&sdata->deflink); |
164eb02d | 4073 | cfg80211_cac_event(sdata->dev, |
d2859df5 | 4074 | &chandef, |
164eb02d SW |
4075 | NL80211_RADAR_CAC_ABORTED, |
4076 | GFP_KERNEL); | |
4077 | } | |
4078 | } | |
34a3740d | 4079 | mutex_unlock(&local->mtx); |
164eb02d SW |
4080 | } |
4081 | ||
4082 | void ieee80211_dfs_radar_detected_work(struct work_struct *work) | |
4083 | { | |
4084 | struct ieee80211_local *local = | |
4085 | container_of(work, struct ieee80211_local, radar_detected_work); | |
84a3d1c9 | 4086 | struct cfg80211_chan_def chandef = local->hw.conf.chandef; |
486cf4c0 MK |
4087 | struct ieee80211_chanctx *ctx; |
4088 | int num_chanctx = 0; | |
4089 | ||
4090 | mutex_lock(&local->chanctx_mtx); | |
4091 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
4092 | if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER) | |
4093 | continue; | |
4094 | ||
4095 | num_chanctx++; | |
4096 | chandef = ctx->conf.def; | |
4097 | } | |
4098 | mutex_unlock(&local->chanctx_mtx); | |
164eb02d | 4099 | |
a05829a7 | 4100 | wiphy_lock(local->hw.wiphy); |
164eb02d | 4101 | ieee80211_dfs_cac_cancel(local); |
a05829a7 | 4102 | wiphy_unlock(local->hw.wiphy); |
164eb02d | 4103 | |
486cf4c0 MK |
4104 | if (num_chanctx > 1) |
4105 | /* XXX: multi-channel is not supported yet */ | |
164eb02d | 4106 | WARN_ON(1); |
84a3d1c9 | 4107 | else |
164eb02d | 4108 | cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL); |
164eb02d SW |
4109 | } |
4110 | ||
4111 | void ieee80211_radar_detected(struct ieee80211_hw *hw) | |
4112 | { | |
4113 | struct ieee80211_local *local = hw_to_local(hw); | |
4114 | ||
4115 | trace_api_radar_detected(local); | |
4116 | ||
4a199068 | 4117 | schedule_work(&local->radar_detected_work); |
164eb02d SW |
4118 | } |
4119 | EXPORT_SYMBOL(ieee80211_radar_detected); | |
e6b7cde4 | 4120 | |
ba323e29 | 4121 | ieee80211_conn_flags_t ieee80211_chandef_downgrade(struct cfg80211_chan_def *c) |
e6b7cde4 | 4122 | { |
ba323e29 | 4123 | ieee80211_conn_flags_t ret; |
e6b7cde4 SW |
4124 | int tmp; |
4125 | ||
4126 | switch (c->width) { | |
4127 | case NL80211_CHAN_WIDTH_20: | |
4128 | c->width = NL80211_CHAN_WIDTH_20_NOHT; | |
ba323e29 | 4129 | ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT; |
e6b7cde4 SW |
4130 | break; |
4131 | case NL80211_CHAN_WIDTH_40: | |
4132 | c->width = NL80211_CHAN_WIDTH_20; | |
4133 | c->center_freq1 = c->chan->center_freq; | |
ba323e29 JB |
4134 | ret = IEEE80211_CONN_DISABLE_40MHZ | |
4135 | IEEE80211_CONN_DISABLE_VHT; | |
e6b7cde4 SW |
4136 | break; |
4137 | case NL80211_CHAN_WIDTH_80: | |
4138 | tmp = (30 + c->chan->center_freq - c->center_freq1)/20; | |
4139 | /* n_P40 */ | |
4140 | tmp /= 2; | |
4141 | /* freq_P40 */ | |
4142 | c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; | |
4143 | c->width = NL80211_CHAN_WIDTH_40; | |
ba323e29 | 4144 | ret = IEEE80211_CONN_DISABLE_VHT; |
e6b7cde4 SW |
4145 | break; |
4146 | case NL80211_CHAN_WIDTH_80P80: | |
4147 | c->center_freq2 = 0; | |
4148 | c->width = NL80211_CHAN_WIDTH_80; | |
ba323e29 JB |
4149 | ret = IEEE80211_CONN_DISABLE_80P80MHZ | |
4150 | IEEE80211_CONN_DISABLE_160MHZ; | |
e6b7cde4 SW |
4151 | break; |
4152 | case NL80211_CHAN_WIDTH_160: | |
4153 | /* n_P20 */ | |
4154 | tmp = (70 + c->chan->center_freq - c->center_freq1)/20; | |
4155 | /* n_P80 */ | |
4156 | tmp /= 4; | |
4157 | c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; | |
4158 | c->width = NL80211_CHAN_WIDTH_80; | |
ba323e29 JB |
4159 | ret = IEEE80211_CONN_DISABLE_80P80MHZ | |
4160 | IEEE80211_CONN_DISABLE_160MHZ; | |
e6b7cde4 | 4161 | break; |
5dca295d IP |
4162 | case NL80211_CHAN_WIDTH_320: |
4163 | /* n_P20 */ | |
4164 | tmp = (150 + c->chan->center_freq - c->center_freq1) / 20; | |
4165 | /* n_P160 */ | |
68608f99 | 4166 | tmp /= 8; |
5dca295d IP |
4167 | c->center_freq1 = c->center_freq1 - 80 + 160 * tmp; |
4168 | c->width = NL80211_CHAN_WIDTH_160; | |
ba323e29 | 4169 | ret = IEEE80211_CONN_DISABLE_320MHZ; |
5dca295d | 4170 | break; |
e6b7cde4 SW |
4171 | default: |
4172 | case NL80211_CHAN_WIDTH_20_NOHT: | |
4173 | WARN_ON_ONCE(1); | |
4174 | c->width = NL80211_CHAN_WIDTH_20_NOHT; | |
ba323e29 | 4175 | ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT; |
e6b7cde4 | 4176 | break; |
df78a0c0 TP |
4177 | case NL80211_CHAN_WIDTH_1: |
4178 | case NL80211_CHAN_WIDTH_2: | |
4179 | case NL80211_CHAN_WIDTH_4: | |
4180 | case NL80211_CHAN_WIDTH_8: | |
4181 | case NL80211_CHAN_WIDTH_16: | |
e6b7cde4 SW |
4182 | case NL80211_CHAN_WIDTH_5: |
4183 | case NL80211_CHAN_WIDTH_10: | |
4184 | WARN_ON_ONCE(1); | |
4185 | /* keep c->width */ | |
ba323e29 | 4186 | ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT; |
e6b7cde4 SW |
4187 | break; |
4188 | } | |
4189 | ||
4190 | WARN_ON_ONCE(!cfg80211_chandef_valid(c)); | |
4191 | ||
4192 | return ret; | |
4193 | } | |
687da132 EG |
4194 | |
4195 | /* | |
4196 | * Returns true if smps_mode_new is strictly more restrictive than | |
4197 | * smps_mode_old. | |
4198 | */ | |
4199 | bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, | |
4200 | enum ieee80211_smps_mode smps_mode_new) | |
4201 | { | |
4202 | if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC || | |
4203 | smps_mode_new == IEEE80211_SMPS_AUTOMATIC)) | |
4204 | return false; | |
4205 | ||
4206 | switch (smps_mode_old) { | |
4207 | case IEEE80211_SMPS_STATIC: | |
4208 | return false; | |
4209 | case IEEE80211_SMPS_DYNAMIC: | |
4210 | return smps_mode_new == IEEE80211_SMPS_STATIC; | |
4211 | case IEEE80211_SMPS_OFF: | |
4212 | return smps_mode_new != IEEE80211_SMPS_OFF; | |
4213 | default: | |
4214 | WARN_ON(1); | |
4215 | } | |
4216 | ||
4217 | return false; | |
4218 | } | |
c6da674a CYY |
4219 | |
4220 | int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, | |
4221 | struct cfg80211_csa_settings *csa_settings) | |
4222 | { | |
4223 | struct sk_buff *skb; | |
4224 | struct ieee80211_mgmt *mgmt; | |
4225 | struct ieee80211_local *local = sdata->local; | |
4226 | int freq; | |
4c121fd6 JB |
4227 | int hdr_len = offsetofend(struct ieee80211_mgmt, |
4228 | u.action.u.chan_switch); | |
c6da674a CYY |
4229 | u8 *pos; |
4230 | ||
4231 | if (sdata->vif.type != NL80211_IFTYPE_ADHOC && | |
4232 | sdata->vif.type != NL80211_IFTYPE_MESH_POINT) | |
4233 | return -EOPNOTSUPP; | |
4234 | ||
4235 | skb = dev_alloc_skb(local->tx_headroom + hdr_len + | |
4236 | 5 + /* channel switch announcement element */ | |
4237 | 3 + /* secondary channel offset element */ | |
75d627d5 | 4238 | 5 + /* wide bandwidth channel switch announcement */ |
c6da674a CYY |
4239 | 8); /* mesh channel switch parameters element */ |
4240 | if (!skb) | |
4241 | return -ENOMEM; | |
4242 | ||
4243 | skb_reserve(skb, local->tx_headroom); | |
b080db58 | 4244 | mgmt = skb_put_zero(skb, hdr_len); |
c6da674a CYY |
4245 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
4246 | IEEE80211_STYPE_ACTION); | |
4247 | ||
4248 | eth_broadcast_addr(mgmt->da); | |
4249 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); | |
4250 | if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
4251 | memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); | |
4252 | } else { | |
4253 | struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; | |
4254 | memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); | |
4255 | } | |
4256 | mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; | |
4257 | mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; | |
4258 | pos = skb_put(skb, 5); | |
4259 | *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ | |
4260 | *pos++ = 3; /* IE length */ | |
4261 | *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ | |
4262 | freq = csa_settings->chandef.chan->center_freq; | |
4263 | *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ | |
4264 | *pos++ = csa_settings->count; /* count */ | |
4265 | ||
4266 | if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { | |
4267 | enum nl80211_channel_type ch_type; | |
4268 | ||
4269 | skb_put(skb, 3); | |
4270 | *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ | |
4271 | *pos++ = 1; /* IE length */ | |
4272 | ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); | |
4273 | if (ch_type == NL80211_CHAN_HT40PLUS) | |
4274 | *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
4275 | else | |
4276 | *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
4277 | } | |
4278 | ||
4279 | if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
4280 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; | |
c6da674a CYY |
4281 | |
4282 | skb_put(skb, 8); | |
4283 | *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */ | |
4284 | *pos++ = 6; /* IE length */ | |
4285 | *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */ | |
4286 | *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */ | |
4287 | *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR; | |
4288 | *pos++ |= csa_settings->block_tx ? | |
4289 | WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00; | |
4290 | put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */ | |
4291 | pos += 2; | |
ca91dc97 | 4292 | put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */ |
c6da674a | 4293 | pos += 2; |
c6da674a CYY |
4294 | } |
4295 | ||
75d627d5 SW |
4296 | if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_80 || |
4297 | csa_settings->chandef.width == NL80211_CHAN_WIDTH_80P80 || | |
4298 | csa_settings->chandef.width == NL80211_CHAN_WIDTH_160) { | |
4299 | skb_put(skb, 5); | |
4300 | ieee80211_ie_build_wide_bw_cs(pos, &csa_settings->chandef); | |
4301 | } | |
4302 | ||
c6da674a CYY |
4303 | ieee80211_tx_skb(sdata, skb); |
4304 | return 0; | |
4305 | } | |
2475b1cc | 4306 | |
a7022e65 FF |
4307 | static bool |
4308 | ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i) | |
4309 | { | |
4310 | s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1); | |
4311 | int skip; | |
4312 | ||
4313 | if (end > 0) | |
4314 | return false; | |
4315 | ||
519ee691 JD |
4316 | /* One shot NOA */ |
4317 | if (data->count[i] == 1) | |
4318 | return false; | |
4319 | ||
4320 | if (data->desc[i].interval == 0) | |
4321 | return false; | |
4322 | ||
a7022e65 FF |
4323 | /* End time is in the past, check for repetitions */ |
4324 | skip = DIV_ROUND_UP(-end, data->desc[i].interval); | |
4325 | if (data->count[i] < 255) { | |
4326 | if (data->count[i] <= skip) { | |
4327 | data->count[i] = 0; | |
4328 | return false; | |
4329 | } | |
4330 | ||
4331 | data->count[i] -= skip; | |
4332 | } | |
4333 | ||
4334 | data->desc[i].start += skip * data->desc[i].interval; | |
4335 | ||
4336 | return true; | |
4337 | } | |
4338 | ||
4339 | static bool | |
4340 | ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf, | |
4341 | s32 *offset) | |
4342 | { | |
4343 | bool ret = false; | |
4344 | int i; | |
4345 | ||
4346 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4347 | s32 cur; | |
4348 | ||
4349 | if (!data->count[i]) | |
4350 | continue; | |
4351 | ||
4352 | if (ieee80211_extend_noa_desc(data, tsf + *offset, i)) | |
4353 | ret = true; | |
4354 | ||
4355 | cur = data->desc[i].start - tsf; | |
4356 | if (cur > *offset) | |
4357 | continue; | |
4358 | ||
4359 | cur = data->desc[i].start + data->desc[i].duration - tsf; | |
4360 | if (cur > *offset) | |
4361 | *offset = cur; | |
4362 | } | |
4363 | ||
4364 | return ret; | |
4365 | } | |
4366 | ||
4367 | static u32 | |
4368 | ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf) | |
4369 | { | |
4370 | s32 offset = 0; | |
4371 | int tries = 0; | |
4372 | /* | |
4373 | * arbitrary limit, used to avoid infinite loops when combined NoA | |
4374 | * descriptors cover the full time period. | |
4375 | */ | |
4376 | int max_tries = 5; | |
4377 | ||
4378 | ieee80211_extend_absent_time(data, tsf, &offset); | |
4379 | do { | |
4380 | if (!ieee80211_extend_absent_time(data, tsf, &offset)) | |
4381 | break; | |
4382 | ||
4383 | tries++; | |
4384 | } while (tries < max_tries); | |
4385 | ||
4386 | return offset; | |
4387 | } | |
4388 | ||
4389 | void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf) | |
4390 | { | |
4391 | u32 next_offset = BIT(31) - 1; | |
4392 | int i; | |
4393 | ||
4394 | data->absent = 0; | |
4395 | data->has_next_tsf = false; | |
4396 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4397 | s32 start; | |
4398 | ||
4399 | if (!data->count[i]) | |
4400 | continue; | |
4401 | ||
4402 | ieee80211_extend_noa_desc(data, tsf, i); | |
4403 | start = data->desc[i].start - tsf; | |
4404 | if (start <= 0) | |
4405 | data->absent |= BIT(i); | |
4406 | ||
4407 | if (next_offset > start) | |
4408 | next_offset = start; | |
4409 | ||
4410 | data->has_next_tsf = true; | |
4411 | } | |
4412 | ||
4413 | if (data->absent) | |
4414 | next_offset = ieee80211_get_noa_absent_time(data, tsf); | |
4415 | ||
4416 | data->next_tsf = tsf + next_offset; | |
4417 | } | |
4418 | EXPORT_SYMBOL(ieee80211_update_p2p_noa); | |
4419 | ||
4420 | int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr, | |
4421 | struct ieee80211_noa_data *data, u32 tsf) | |
4422 | { | |
4423 | int ret = 0; | |
4424 | int i; | |
4425 | ||
4426 | memset(data, 0, sizeof(*data)); | |
4427 | ||
4428 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4429 | const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i]; | |
4430 | ||
4431 | if (!desc->count || !desc->duration) | |
4432 | continue; | |
4433 | ||
4434 | data->count[i] = desc->count; | |
4435 | data->desc[i].start = le32_to_cpu(desc->start_time); | |
4436 | data->desc[i].duration = le32_to_cpu(desc->duration); | |
4437 | data->desc[i].interval = le32_to_cpu(desc->interval); | |
4438 | ||
4439 | if (data->count[i] > 1 && | |
4440 | data->desc[i].interval < data->desc[i].duration) | |
4441 | continue; | |
4442 | ||
4443 | ieee80211_extend_noa_desc(data, tsf, i); | |
4444 | ret++; | |
4445 | } | |
4446 | ||
4447 | if (ret) | |
4448 | ieee80211_update_p2p_noa(data, tsf); | |
4449 | ||
4450 | return ret; | |
4451 | } | |
4452 | EXPORT_SYMBOL(ieee80211_parse_p2p_noa); | |
057d5f4b TP |
4453 | |
4454 | void ieee80211_recalc_dtim(struct ieee80211_local *local, | |
4455 | struct ieee80211_sub_if_data *sdata) | |
4456 | { | |
4457 | u64 tsf = drv_get_tsf(local, sdata); | |
4458 | u64 dtim_count = 0; | |
4459 | u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; | |
4460 | u8 dtim_period = sdata->vif.bss_conf.dtim_period; | |
4461 | struct ps_data *ps; | |
4462 | u8 bcns_from_dtim; | |
4463 | ||
4464 | if (tsf == -1ULL || !beacon_int || !dtim_period) | |
4465 | return; | |
4466 | ||
4467 | if (sdata->vif.type == NL80211_IFTYPE_AP || | |
4468 | sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { | |
4469 | if (!sdata->bss) | |
4470 | return; | |
4471 | ||
4472 | ps = &sdata->bss->ps; | |
4473 | } else if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
4474 | ps = &sdata->u.mesh.ps; | |
4475 | } else { | |
4476 | return; | |
4477 | } | |
4478 | ||
4479 | /* | |
4480 | * actually finds last dtim_count, mac80211 will update in | |
4481 | * __beacon_add_tim(). | |
4482 | * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period | |
4483 | */ | |
4484 | do_div(tsf, beacon_int); | |
4485 | bcns_from_dtim = do_div(tsf, dtim_period); | |
4486 | /* just had a DTIM */ | |
4487 | if (!bcns_from_dtim) | |
4488 | dtim_count = 0; | |
4489 | else | |
4490 | dtim_count = dtim_period - bcns_from_dtim; | |
4491 | ||
4492 | ps->dtim_count = dtim_count; | |
4493 | } | |
73de86a3 | 4494 | |
71e6195e MK |
4495 | static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local, |
4496 | struct ieee80211_chanctx *ctx) | |
4497 | { | |
b4f85443 | 4498 | struct ieee80211_link_data *link; |
71e6195e MK |
4499 | u8 radar_detect = 0; |
4500 | ||
4501 | lockdep_assert_held(&local->chanctx_mtx); | |
4502 | ||
4503 | if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)) | |
4504 | return 0; | |
4505 | ||
b4f85443 JB |
4506 | list_for_each_entry(link, &ctx->reserved_links, reserved_chanctx_list) |
4507 | if (link->reserved_radar_required) | |
4508 | radar_detect |= BIT(link->reserved_chandef.width); | |
71e6195e MK |
4509 | |
4510 | /* | |
4511 | * An in-place reservation context should not have any assigned vifs | |
4512 | * until it replaces the other context. | |
4513 | */ | |
4514 | WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER && | |
b4f85443 JB |
4515 | !list_empty(&ctx->assigned_links)); |
4516 | ||
4517 | list_for_each_entry(link, &ctx->assigned_links, assigned_chanctx_list) { | |
b4f85443 JB |
4518 | if (!link->radar_required) |
4519 | continue; | |
4520 | ||
4521 | radar_detect |= | |
d8675a63 | 4522 | BIT(link->conf->chandef.width); |
b4f85443 | 4523 | } |
71e6195e MK |
4524 | |
4525 | return radar_detect; | |
4526 | } | |
4527 | ||
73de86a3 LC |
4528 | int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, |
4529 | const struct cfg80211_chan_def *chandef, | |
4530 | enum ieee80211_chanctx_mode chanmode, | |
4531 | u8 radar_detect) | |
4532 | { | |
4533 | struct ieee80211_local *local = sdata->local; | |
4534 | struct ieee80211_sub_if_data *sdata_iter; | |
4535 | enum nl80211_iftype iftype = sdata->wdev.iftype; | |
73de86a3 | 4536 | struct ieee80211_chanctx *ctx; |
73de86a3 | 4537 | int total = 1; |
e227300c PK |
4538 | struct iface_combination_params params = { |
4539 | .radar_detect = radar_detect, | |
4540 | }; | |
73de86a3 LC |
4541 | |
4542 | lockdep_assert_held(&local->chanctx_mtx); | |
4543 | ||
4544 | if (WARN_ON(hweight32(radar_detect) > 1)) | |
4545 | return -EINVAL; | |
4546 | ||
b6a55015 LC |
4547 | if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED && |
4548 | !chandef->chan)) | |
73de86a3 LC |
4549 | return -EINVAL; |
4550 | ||
4551 | if (WARN_ON(iftype >= NUM_NL80211_IFTYPES)) | |
4552 | return -EINVAL; | |
4553 | ||
ac668afe JB |
4554 | if (sdata->vif.type == NL80211_IFTYPE_AP || |
4555 | sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { | |
4556 | /* | |
4557 | * always passing this is harmless, since it'll be the | |
4558 | * same value that cfg80211 finds if it finds the same | |
4559 | * interface ... and that's always allowed | |
4560 | */ | |
4561 | params.new_beacon_int = sdata->vif.bss_conf.beacon_int; | |
4562 | } | |
4563 | ||
73de86a3 | 4564 | /* Always allow software iftypes */ |
e6f40511 | 4565 | if (cfg80211_iftype_allowed(local->hw.wiphy, iftype, 0, 1)) { |
73de86a3 LC |
4566 | if (radar_detect) |
4567 | return -EINVAL; | |
4568 | return 0; | |
4569 | } | |
4570 | ||
e227300c PK |
4571 | if (chandef) |
4572 | params.num_different_channels = 1; | |
73de86a3 LC |
4573 | |
4574 | if (iftype != NL80211_IFTYPE_UNSPECIFIED) | |
e227300c | 4575 | params.iftype_num[iftype] = 1; |
73de86a3 LC |
4576 | |
4577 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
5bcae31d MK |
4578 | if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) |
4579 | continue; | |
e227300c PK |
4580 | params.radar_detect |= |
4581 | ieee80211_chanctx_radar_detect(local, ctx); | |
73de86a3 | 4582 | if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) { |
e227300c | 4583 | params.num_different_channels++; |
73de86a3 LC |
4584 | continue; |
4585 | } | |
b6a55015 | 4586 | if (chandef && chanmode == IEEE80211_CHANCTX_SHARED && |
73de86a3 LC |
4587 | cfg80211_chandef_compatible(chandef, |
4588 | &ctx->conf.def)) | |
4589 | continue; | |
e227300c | 4590 | params.num_different_channels++; |
73de86a3 LC |
4591 | } |
4592 | ||
4593 | list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { | |
4594 | struct wireless_dev *wdev_iter; | |
4595 | ||
4596 | wdev_iter = &sdata_iter->wdev; | |
4597 | ||
4598 | if (sdata_iter == sdata || | |
0f611d28 | 4599 | !ieee80211_sdata_running(sdata_iter) || |
e6f40511 MP |
4600 | cfg80211_iftype_allowed(local->hw.wiphy, |
4601 | wdev_iter->iftype, 0, 1)) | |
73de86a3 LC |
4602 | continue; |
4603 | ||
e227300c | 4604 | params.iftype_num[wdev_iter->iftype]++; |
73de86a3 LC |
4605 | total++; |
4606 | } | |
4607 | ||
e227300c | 4608 | if (total == 1 && !params.radar_detect) |
73de86a3 LC |
4609 | return 0; |
4610 | ||
e227300c | 4611 | return cfg80211_check_combinations(local->hw.wiphy, ¶ms); |
73de86a3 | 4612 | } |
6fa001bc MK |
4613 | |
4614 | static void | |
4615 | ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c, | |
4616 | void *data) | |
4617 | { | |
4618 | u32 *max_num_different_channels = data; | |
4619 | ||
4620 | *max_num_different_channels = max(*max_num_different_channels, | |
4621 | c->num_different_channels); | |
4622 | } | |
4623 | ||
4624 | int ieee80211_max_num_channels(struct ieee80211_local *local) | |
4625 | { | |
4626 | struct ieee80211_sub_if_data *sdata; | |
6fa001bc | 4627 | struct ieee80211_chanctx *ctx; |
6fa001bc MK |
4628 | u32 max_num_different_channels = 1; |
4629 | int err; | |
e227300c | 4630 | struct iface_combination_params params = {0}; |
6fa001bc MK |
4631 | |
4632 | lockdep_assert_held(&local->chanctx_mtx); | |
4633 | ||
4634 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
5bcae31d MK |
4635 | if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) |
4636 | continue; | |
4637 | ||
e227300c | 4638 | params.num_different_channels++; |
6fa001bc | 4639 | |
e227300c PK |
4640 | params.radar_detect |= |
4641 | ieee80211_chanctx_radar_detect(local, ctx); | |
6fa001bc MK |
4642 | } |
4643 | ||
4644 | list_for_each_entry_rcu(sdata, &local->interfaces, list) | |
e227300c | 4645 | params.iftype_num[sdata->wdev.iftype]++; |
6fa001bc | 4646 | |
e227300c PK |
4647 | err = cfg80211_iter_combinations(local->hw.wiphy, ¶ms, |
4648 | ieee80211_iter_max_chans, | |
6fa001bc MK |
4649 | &max_num_different_channels); |
4650 | if (err < 0) | |
4651 | return err; | |
4652 | ||
4653 | return max_num_different_channels; | |
7957c6c8 TP |
4654 | } |
4655 | ||
4656 | void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, | |
4657 | struct ieee80211_sta_s1g_cap *caps, | |
4658 | struct sk_buff *skb) | |
4659 | { | |
4660 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
4661 | struct ieee80211_s1g_cap s1g_capab; | |
4662 | u8 *pos; | |
4663 | int i; | |
4664 | ||
4665 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
4666 | return; | |
4667 | ||
4668 | if (!caps->s1g) | |
4669 | return; | |
4670 | ||
4671 | memcpy(s1g_capab.capab_info, caps->cap, sizeof(caps->cap)); | |
4672 | memcpy(s1g_capab.supp_mcs_nss, caps->nss_mcs, sizeof(caps->nss_mcs)); | |
4673 | ||
4674 | /* override the capability info */ | |
4675 | for (i = 0; i < sizeof(ifmgd->s1g_capa.capab_info); i++) { | |
4676 | u8 mask = ifmgd->s1g_capa_mask.capab_info[i]; | |
4677 | ||
4678 | s1g_capab.capab_info[i] &= ~mask; | |
4679 | s1g_capab.capab_info[i] |= ifmgd->s1g_capa.capab_info[i] & mask; | |
4680 | } | |
4681 | ||
4682 | /* then MCS and NSS set */ | |
4683 | for (i = 0; i < sizeof(ifmgd->s1g_capa.supp_mcs_nss); i++) { | |
4684 | u8 mask = ifmgd->s1g_capa_mask.supp_mcs_nss[i]; | |
4685 | ||
4686 | s1g_capab.supp_mcs_nss[i] &= ~mask; | |
4687 | s1g_capab.supp_mcs_nss[i] |= | |
4688 | ifmgd->s1g_capa.supp_mcs_nss[i] & mask; | |
4689 | } | |
4690 | ||
4691 | pos = skb_put(skb, 2 + sizeof(s1g_capab)); | |
4692 | *pos++ = WLAN_EID_S1G_CAPABILITIES; | |
4693 | *pos++ = sizeof(s1g_capab); | |
4694 | ||
4695 | memcpy(pos, &s1g_capab, sizeof(s1g_capab)); | |
6fa001bc | 4696 | } |
40b861a0 | 4697 | |
1d00ce80 TP |
4698 | void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, |
4699 | struct sk_buff *skb) | |
4700 | { | |
4701 | u8 *pos = skb_put(skb, 3); | |
4702 | ||
4703 | *pos++ = WLAN_EID_AID_REQUEST; | |
4704 | *pos++ = 1; | |
4705 | *pos++ = 0; | |
4706 | } | |
4707 | ||
40b861a0 AN |
4708 | u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo) |
4709 | { | |
4710 | *buf++ = WLAN_EID_VENDOR_SPECIFIC; | |
4711 | *buf++ = 7; /* len */ | |
4712 | *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */ | |
4713 | *buf++ = 0x50; | |
4714 | *buf++ = 0xf2; | |
4715 | *buf++ = 2; /* WME */ | |
4716 | *buf++ = 0; /* WME info */ | |
4717 | *buf++ = 1; /* WME ver */ | |
4718 | *buf++ = qosinfo; /* U-APSD no in use */ | |
4719 | ||
4720 | return buf; | |
4721 | } | |
ba8c3d6f | 4722 | |
f2ac7e30 MK |
4723 | void ieee80211_txq_get_depth(struct ieee80211_txq *txq, |
4724 | unsigned long *frame_cnt, | |
4725 | unsigned long *byte_cnt) | |
4726 | { | |
4727 | struct txq_info *txqi = to_txq_info(txq); | |
bb42f2d1 THJ |
4728 | u32 frag_cnt = 0, frag_bytes = 0; |
4729 | struct sk_buff *skb; | |
4730 | ||
4731 | skb_queue_walk(&txqi->frags, skb) { | |
4732 | frag_cnt++; | |
4733 | frag_bytes += skb->len; | |
4734 | } | |
f2ac7e30 MK |
4735 | |
4736 | if (frame_cnt) | |
bb42f2d1 | 4737 | *frame_cnt = txqi->tin.backlog_packets + frag_cnt; |
f2ac7e30 MK |
4738 | |
4739 | if (byte_cnt) | |
bb42f2d1 | 4740 | *byte_cnt = txqi->tin.backlog_bytes + frag_bytes; |
f2ac7e30 MK |
4741 | } |
4742 | EXPORT_SYMBOL(ieee80211_txq_get_depth); | |
f438ceb8 EG |
4743 | |
4744 | const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = { | |
4745 | IEEE80211_WMM_IE_STA_QOSINFO_AC_VO, | |
4746 | IEEE80211_WMM_IE_STA_QOSINFO_AC_VI, | |
4747 | IEEE80211_WMM_IE_STA_QOSINFO_AC_BE, | |
4748 | IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | |
4749 | }; | |
05d10957 TP |
4750 | |
4751 | u16 ieee80211_encode_usf(int listen_interval) | |
4752 | { | |
4753 | static const int listen_int_usf[] = { 1, 10, 1000, 10000 }; | |
4754 | u16 ui, usf = 0; | |
4755 | ||
4756 | /* find greatest USF */ | |
4757 | while (usf < IEEE80211_MAX_USF) { | |
4758 | if (listen_interval % listen_int_usf[usf + 1]) | |
4759 | break; | |
4760 | usf += 1; | |
4761 | } | |
4762 | ui = listen_interval / listen_int_usf[usf]; | |
4763 | ||
4764 | /* error if there is a remainder. Should've been checked by user */ | |
4765 | WARN_ON_ONCE(ui > IEEE80211_MAX_UI); | |
4766 | listen_interval = FIELD_PREP(LISTEN_INT_USF, usf) | | |
4767 | FIELD_PREP(LISTEN_INT_UI, ui); | |
4768 | ||
4769 | return (u16) listen_interval; | |
4770 | } | |
820acc81 IP |
4771 | |
4772 | u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) | |
4773 | { | |
4774 | const struct ieee80211_sta_he_cap *he_cap; | |
4775 | const struct ieee80211_sta_eht_cap *eht_cap; | |
4776 | struct ieee80211_supported_band *sband; | |
ea5cba26 | 4777 | bool is_ap; |
820acc81 IP |
4778 | u8 n; |
4779 | ||
4780 | sband = ieee80211_get_sband(sdata); | |
4781 | if (!sband) | |
4782 | return 0; | |
4783 | ||
4784 | he_cap = ieee80211_get_he_iftype_cap(sband, iftype); | |
4785 | eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype); | |
4786 | if (!he_cap || !eht_cap) | |
4787 | return 0; | |
4788 | ||
ea5cba26 JB |
4789 | is_ap = iftype == NL80211_IFTYPE_AP || |
4790 | iftype == NL80211_IFTYPE_P2P_GO; | |
4791 | ||
820acc81 | 4792 | n = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, |
ea5cba26 JB |
4793 | &eht_cap->eht_cap_elem, |
4794 | is_ap); | |
820acc81 IP |
4795 | return 2 + 1 + |
4796 | sizeof(he_cap->he_cap_elem) + n + | |
4797 | ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], | |
4798 | eht_cap->eht_cap_elem.phy_cap_info); | |
4799 | return 0; | |
4800 | } | |
4801 | ||
4802 | u8 *ieee80211_ie_build_eht_cap(u8 *pos, | |
4803 | const struct ieee80211_sta_he_cap *he_cap, | |
4804 | const struct ieee80211_sta_eht_cap *eht_cap, | |
ea5cba26 JB |
4805 | u8 *end, |
4806 | bool for_ap) | |
820acc81 IP |
4807 | { |
4808 | u8 mcs_nss_len, ppet_len; | |
4809 | u8 ie_len; | |
4810 | u8 *orig_pos = pos; | |
4811 | ||
4812 | /* Make sure we have place for the IE */ | |
4813 | if (!he_cap || !eht_cap) | |
4814 | return orig_pos; | |
4815 | ||
4816 | mcs_nss_len = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, | |
ea5cba26 JB |
4817 | &eht_cap->eht_cap_elem, |
4818 | for_ap); | |
820acc81 IP |
4819 | ppet_len = ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], |
4820 | eht_cap->eht_cap_elem.phy_cap_info); | |
4821 | ||
4822 | ie_len = 2 + 1 + sizeof(eht_cap->eht_cap_elem) + mcs_nss_len + ppet_len; | |
4823 | if ((end - pos) < ie_len) | |
4824 | return orig_pos; | |
4825 | ||
4826 | *pos++ = WLAN_EID_EXTENSION; | |
4827 | *pos++ = ie_len - 2; | |
4828 | *pos++ = WLAN_EID_EXT_EHT_CAPABILITY; | |
4829 | ||
4830 | /* Fixed data */ | |
4831 | memcpy(pos, &eht_cap->eht_cap_elem, sizeof(eht_cap->eht_cap_elem)); | |
4832 | pos += sizeof(eht_cap->eht_cap_elem); | |
4833 | ||
4834 | memcpy(pos, &eht_cap->eht_mcs_nss_supp, mcs_nss_len); | |
4835 | pos += mcs_nss_len; | |
4836 | ||
4837 | if (ppet_len) { | |
4838 | memcpy(pos, &eht_cap->eht_ppe_thres, ppet_len); | |
4839 | pos += ppet_len; | |
4840 | } | |
4841 | ||
4842 | return pos; | |
4843 | } | |
e4342549 JB |
4844 | |
4845 | void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos) | |
4846 | { | |
4847 | unsigned int elem_len; | |
4848 | ||
4849 | if (!len_pos) | |
4850 | return; | |
4851 | ||
4852 | elem_len = skb->data + skb->len - len_pos - 1; | |
4853 | ||
4854 | while (elem_len > 255) { | |
4855 | /* this one is 255 */ | |
4856 | *len_pos = 255; | |
4857 | /* remaining data gets smaller */ | |
4858 | elem_len -= 255; | |
4859 | /* make space for the fragment ID/len in SKB */ | |
4860 | skb_put(skb, 2); | |
4861 | /* shift back the remaining data to place fragment ID/len */ | |
4862 | memmove(len_pos + 255 + 3, len_pos + 255 + 1, elem_len); | |
4863 | /* place the fragment ID */ | |
4864 | len_pos += 255 + 1; | |
4865 | *len_pos = WLAN_EID_FRAGMENT; | |
4866 | /* and point to fragment length to update later */ | |
4867 | len_pos++; | |
4868 | } | |
4869 | ||
4870 | *len_pos = elem_len; | |
4871 | } |