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 | ||
c850e31f AW |
291 | static void wake_tx_push_queue(struct ieee80211_local *local, |
292 | struct ieee80211_sub_if_data *sdata, | |
293 | struct ieee80211_txq *queue) | |
294 | { | |
295 | int q = sdata->vif.hw_queue[queue->ac]; | |
296 | struct ieee80211_tx_control control = { | |
297 | .sta = queue->sta, | |
298 | }; | |
299 | struct sk_buff *skb; | |
300 | unsigned long flags; | |
301 | bool q_stopped; | |
302 | ||
303 | while (1) { | |
304 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
305 | q_stopped = local->queue_stop_reasons[q]; | |
306 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
307 | ||
308 | if (q_stopped) | |
309 | break; | |
310 | ||
311 | skb = ieee80211_tx_dequeue(&local->hw, queue); | |
312 | if (!skb) | |
313 | break; | |
314 | ||
315 | drv_tx(local, &control, skb); | |
316 | } | |
317 | } | |
318 | ||
319 | /* wake_tx_queue handler for driver not implementing a custom one*/ | |
320 | void ieee80211_handle_wake_tx_queue(struct ieee80211_hw *hw, | |
321 | struct ieee80211_txq *txq) | |
322 | { | |
323 | struct ieee80211_local *local = hw_to_local(hw); | |
324 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(txq->vif); | |
325 | struct ieee80211_txq *queue; | |
326 | ||
327 | /* Use ieee80211_next_txq() for airtime fairness accounting */ | |
328 | ieee80211_txq_schedule_start(hw, txq->ac); | |
329 | while ((queue = ieee80211_next_txq(hw, txq->ac))) { | |
330 | wake_tx_push_queue(local, sdata, queue); | |
331 | ieee80211_return_txq(hw, queue, false); | |
332 | } | |
333 | ieee80211_txq_schedule_end(hw, txq->ac); | |
334 | } | |
335 | EXPORT_SYMBOL(ieee80211_handle_wake_tx_queue); | |
336 | ||
21a5d4c3 MP |
337 | static void __ieee80211_wake_txqs(struct ieee80211_sub_if_data *sdata, int ac) |
338 | { | |
339 | struct ieee80211_local *local = sdata->local; | |
340 | struct ieee80211_vif *vif = &sdata->vif; | |
341 | struct fq *fq = &local->fq; | |
342 | struct ps_data *ps = NULL; | |
343 | struct txq_info *txqi; | |
344 | struct sta_info *sta; | |
345 | int i; | |
346 | ||
d8dec42b JB |
347 | local_bh_disable(); |
348 | spin_lock(&fq->lock); | |
21a5d4c3 | 349 | |
527008e5 AW |
350 | sdata->vif.txqs_stopped[ac] = false; |
351 | ||
f856373e FF |
352 | if (!test_bit(SDATA_STATE_RUNNING, &sdata->state)) |
353 | goto out; | |
354 | ||
21a5d4c3 MP |
355 | if (sdata->vif.type == NL80211_IFTYPE_AP) |
356 | ps = &sdata->bss->ps; | |
357 | ||
21a5d4c3 MP |
358 | list_for_each_entry_rcu(sta, &local->sta_list, list) { |
359 | if (sdata != sta->sdata) | |
360 | continue; | |
361 | ||
362 | for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) { | |
363 | struct ieee80211_txq *txq = sta->sta.txq[i]; | |
364 | ||
a5ae3264 ES |
365 | if (!txq) |
366 | continue; | |
367 | ||
21a5d4c3 MP |
368 | txqi = to_txq_info(txq); |
369 | ||
370 | if (ac != txq->ac) | |
371 | continue; | |
372 | ||
373 | if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, | |
374 | &txqi->flags)) | |
375 | continue; | |
376 | ||
d8dec42b | 377 | spin_unlock(&fq->lock); |
21a5d4c3 | 378 | drv_wake_tx_queue(local, txqi); |
d8dec42b | 379 | spin_lock(&fq->lock); |
21a5d4c3 MP |
380 | } |
381 | } | |
382 | ||
383 | if (!vif->txq) | |
384 | goto out; | |
385 | ||
386 | txqi = to_txq_info(vif->txq); | |
387 | ||
388 | if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txqi->flags) || | |
389 | (ps && atomic_read(&ps->num_sta_ps)) || ac != vif->txq->ac) | |
390 | goto out; | |
391 | ||
d8dec42b | 392 | spin_unlock(&fq->lock); |
21a5d4c3 MP |
393 | |
394 | drv_wake_tx_queue(local, txqi); | |
d8dec42b | 395 | local_bh_enable(); |
21a5d4c3 MP |
396 | return; |
397 | out: | |
d8dec42b JB |
398 | spin_unlock(&fq->lock); |
399 | local_bh_enable(); | |
21a5d4c3 MP |
400 | } |
401 | ||
f6c7f03f EG |
402 | static void |
403 | __releases(&local->queue_stop_reason_lock) | |
404 | __acquires(&local->queue_stop_reason_lock) | |
405 | _ieee80211_wake_txqs(struct ieee80211_local *local, unsigned long *flags) | |
21a5d4c3 | 406 | { |
21a5d4c3 MP |
407 | struct ieee80211_sub_if_data *sdata; |
408 | int n_acs = IEEE80211_NUM_ACS; | |
21a5d4c3 MP |
409 | int i; |
410 | ||
411 | rcu_read_lock(); | |
21a5d4c3 MP |
412 | |
413 | if (local->hw.queues < IEEE80211_NUM_ACS) | |
414 | n_acs = 1; | |
415 | ||
416 | for (i = 0; i < local->hw.queues; i++) { | |
417 | if (local->queue_stop_reasons[i]) | |
418 | continue; | |
419 | ||
f6c7f03f | 420 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, *flags); |
21a5d4c3 MP |
421 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
422 | int ac; | |
423 | ||
424 | for (ac = 0; ac < n_acs; ac++) { | |
425 | int ac_queue = sdata->vif.hw_queue[ac]; | |
426 | ||
427 | if (ac_queue == i || | |
428 | sdata->vif.cab_queue == i) | |
429 | __ieee80211_wake_txqs(sdata, ac); | |
430 | } | |
431 | } | |
f6c7f03f | 432 | spin_lock_irqsave(&local->queue_stop_reason_lock, *flags); |
21a5d4c3 MP |
433 | } |
434 | ||
21a5d4c3 MP |
435 | rcu_read_unlock(); |
436 | } | |
437 | ||
da1cad73 | 438 | void ieee80211_wake_txqs(struct tasklet_struct *t) |
f6c7f03f | 439 | { |
da1cad73 AP |
440 | struct ieee80211_local *local = from_tasklet(local, t, |
441 | wake_txqs_tasklet); | |
f6c7f03f EG |
442 | unsigned long flags; |
443 | ||
444 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
445 | _ieee80211_wake_txqs(local, &flags); | |
446 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
447 | } | |
448 | ||
3a25a8c8 JB |
449 | void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue) |
450 | { | |
451 | struct ieee80211_sub_if_data *sdata; | |
a6f38ac3 JB |
452 | int n_acs = IEEE80211_NUM_ACS; |
453 | ||
80a83cfc MK |
454 | if (local->ops->wake_tx_queue) |
455 | return; | |
456 | ||
a6f38ac3 JB |
457 | if (local->hw.queues < IEEE80211_NUM_ACS) |
458 | n_acs = 1; | |
3a25a8c8 JB |
459 | |
460 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { | |
461 | int ac; | |
462 | ||
f142c6b9 JB |
463 | if (!sdata->dev) |
464 | continue; | |
465 | ||
3a25a8c8 JB |
466 | if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE && |
467 | local->queue_stop_reasons[sdata->vif.cab_queue] != 0) | |
468 | continue; | |
469 | ||
a6f38ac3 | 470 | for (ac = 0; ac < n_acs; ac++) { |
3a25a8c8 JB |
471 | int ac_queue = sdata->vif.hw_queue[ac]; |
472 | ||
473 | if (ac_queue == queue || | |
474 | (sdata->vif.cab_queue == queue && | |
475 | local->queue_stop_reasons[ac_queue] == 0 && | |
476 | skb_queue_empty(&local->pending[ac_queue]))) | |
477 | netif_wake_subqueue(sdata->dev, ac); | |
478 | } | |
479 | } | |
480 | } | |
481 | ||
ce7c9111 | 482 | static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, |
cca07b00 | 483 | enum queue_stop_reason reason, |
f6c7f03f EG |
484 | bool refcounted, |
485 | unsigned long *flags) | |
c2d1560a JB |
486 | { |
487 | struct ieee80211_local *local = hw_to_local(hw); | |
488 | ||
b5878a2d JB |
489 | trace_wake_queue(local, queue, reason); |
490 | ||
e4e72fb4 JB |
491 | if (WARN_ON(queue >= hw->queues)) |
492 | return; | |
ce7c9111 | 493 | |
ada15125 JB |
494 | if (!test_bit(reason, &local->queue_stop_reasons[queue])) |
495 | return; | |
496 | ||
856142cd | 497 | if (!refcounted) { |
cca07b00 | 498 | local->q_stop_reasons[queue][reason] = 0; |
856142cd | 499 | } else { |
cca07b00 | 500 | local->q_stop_reasons[queue][reason]--; |
856142cd JB |
501 | if (WARN_ON(local->q_stop_reasons[queue][reason] < 0)) |
502 | local->q_stop_reasons[queue][reason] = 0; | |
503 | } | |
cca07b00 LC |
504 | |
505 | if (local->q_stop_reasons[queue][reason] == 0) | |
506 | __clear_bit(reason, &local->queue_stop_reasons[queue]); | |
96f5e66e JB |
507 | |
508 | if (local->queue_stop_reasons[queue] != 0) | |
509 | /* someone still has this queue stopped */ | |
510 | return; | |
511 | ||
7236fe29 JB |
512 | if (skb_queue_empty(&local->pending[queue])) { |
513 | rcu_read_lock(); | |
3a25a8c8 | 514 | ieee80211_propagate_queue_wake(local, queue); |
7236fe29 JB |
515 | rcu_read_unlock(); |
516 | } else | |
3b8d81e0 | 517 | tasklet_schedule(&local->tx_pending_tasklet); |
21a5d4c3 | 518 | |
f6c7f03f EG |
519 | /* |
520 | * Calling _ieee80211_wake_txqs here can be a problem because it may | |
521 | * release queue_stop_reason_lock which has been taken by | |
522 | * __ieee80211_wake_queue's caller. It is certainly not very nice to | |
523 | * release someone's lock, but it is fine because all the callers of | |
524 | * __ieee80211_wake_queue call it right before releasing the lock. | |
525 | */ | |
526 | if (local->ops->wake_tx_queue) { | |
527 | if (reason == IEEE80211_QUEUE_STOP_REASON_DRIVER) | |
528 | tasklet_schedule(&local->wake_txqs_tasklet); | |
529 | else | |
530 | _ieee80211_wake_txqs(local, flags); | |
531 | } | |
c2d1560a | 532 | } |
ce7c9111 | 533 | |
96f5e66e | 534 | void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
535 | enum queue_stop_reason reason, |
536 | bool refcounted) | |
ce7c9111 KV |
537 | { |
538 | struct ieee80211_local *local = hw_to_local(hw); | |
539 | unsigned long flags; | |
540 | ||
541 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
f6c7f03f | 542 | __ieee80211_wake_queue(hw, queue, reason, refcounted, &flags); |
ce7c9111 KV |
543 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
544 | } | |
545 | ||
546 | void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue) | |
547 | { | |
548 | ieee80211_wake_queue_by_reason(hw, queue, | |
cca07b00 LC |
549 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
550 | false); | |
ce7c9111 | 551 | } |
c2d1560a JB |
552 | EXPORT_SYMBOL(ieee80211_wake_queue); |
553 | ||
ce7c9111 | 554 | static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
555 | enum queue_stop_reason reason, |
556 | bool refcounted) | |
c2d1560a JB |
557 | { |
558 | struct ieee80211_local *local = hw_to_local(hw); | |
cf0277e7 | 559 | struct ieee80211_sub_if_data *sdata; |
a6f38ac3 | 560 | int n_acs = IEEE80211_NUM_ACS; |
c2d1560a | 561 | |
b5878a2d JB |
562 | trace_stop_queue(local, queue, reason); |
563 | ||
e4e72fb4 JB |
564 | if (WARN_ON(queue >= hw->queues)) |
565 | return; | |
96f5e66e | 566 | |
cca07b00 LC |
567 | if (!refcounted) |
568 | local->q_stop_reasons[queue][reason] = 1; | |
569 | else | |
570 | local->q_stop_reasons[queue][reason]++; | |
ada15125 | 571 | |
cca07b00 LC |
572 | if (__test_and_set_bit(reason, &local->queue_stop_reasons[queue])) |
573 | return; | |
cf0277e7 | 574 | |
a6f38ac3 JB |
575 | if (local->hw.queues < IEEE80211_NUM_ACS) |
576 | n_acs = 1; | |
577 | ||
cf0277e7 | 578 | rcu_read_lock(); |
3a25a8c8 JB |
579 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
580 | int ac; | |
581 | ||
f142c6b9 JB |
582 | if (!sdata->dev) |
583 | continue; | |
584 | ||
a6f38ac3 | 585 | for (ac = 0; ac < n_acs; ac++) { |
3a25a8c8 | 586 | if (sdata->vif.hw_queue[ac] == queue || |
21a5d4c3 MP |
587 | sdata->vif.cab_queue == queue) { |
588 | if (!local->ops->wake_tx_queue) { | |
589 | netif_stop_subqueue(sdata->dev, ac); | |
590 | continue; | |
591 | } | |
592 | spin_lock(&local->fq.lock); | |
593 | sdata->vif.txqs_stopped[ac] = true; | |
594 | spin_unlock(&local->fq.lock); | |
595 | } | |
3a25a8c8 JB |
596 | } |
597 | } | |
cf0277e7 | 598 | rcu_read_unlock(); |
c2d1560a | 599 | } |
ce7c9111 | 600 | |
96f5e66e | 601 | void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
602 | enum queue_stop_reason reason, |
603 | bool refcounted) | |
ce7c9111 KV |
604 | { |
605 | struct ieee80211_local *local = hw_to_local(hw); | |
606 | unsigned long flags; | |
607 | ||
608 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
cca07b00 | 609 | __ieee80211_stop_queue(hw, queue, reason, refcounted); |
ce7c9111 KV |
610 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
611 | } | |
612 | ||
613 | void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue) | |
614 | { | |
615 | ieee80211_stop_queue_by_reason(hw, queue, | |
cca07b00 LC |
616 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
617 | false); | |
ce7c9111 | 618 | } |
c2d1560a JB |
619 | EXPORT_SYMBOL(ieee80211_stop_queue); |
620 | ||
8f77f384 JB |
621 | void ieee80211_add_pending_skb(struct ieee80211_local *local, |
622 | struct sk_buff *skb) | |
623 | { | |
624 | struct ieee80211_hw *hw = &local->hw; | |
625 | unsigned long flags; | |
a7bc376c | 626 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
3a25a8c8 | 627 | int queue = info->hw_queue; |
a7bc376c JB |
628 | |
629 | if (WARN_ON(!info->control.vif)) { | |
d4fa14cd | 630 | ieee80211_free_txskb(&local->hw, skb); |
a7bc376c JB |
631 | return; |
632 | } | |
8f77f384 JB |
633 | |
634 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
cca07b00 LC |
635 | __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
636 | false); | |
3b8d81e0 | 637 | __skb_queue_tail(&local->pending[queue], skb); |
cca07b00 | 638 | __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
f6c7f03f | 639 | false, &flags); |
8f77f384 JB |
640 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
641 | } | |
642 | ||
e3685e03 JB |
643 | void ieee80211_add_pending_skbs(struct ieee80211_local *local, |
644 | struct sk_buff_head *skbs) | |
8f77f384 JB |
645 | { |
646 | struct ieee80211_hw *hw = &local->hw; | |
647 | struct sk_buff *skb; | |
648 | unsigned long flags; | |
b0b97a8a | 649 | int queue, i; |
8f77f384 JB |
650 | |
651 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
8f77f384 | 652 | while ((skb = skb_dequeue(skbs))) { |
a7bc376c JB |
653 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
654 | ||
655 | if (WARN_ON(!info->control.vif)) { | |
d4fa14cd | 656 | ieee80211_free_txskb(&local->hw, skb); |
a7bc376c JB |
657 | continue; |
658 | } | |
659 | ||
3a25a8c8 | 660 | queue = info->hw_queue; |
4644ae89 JB |
661 | |
662 | __ieee80211_stop_queue(hw, queue, | |
cca07b00 LC |
663 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
664 | false); | |
4644ae89 | 665 | |
3b8d81e0 | 666 | __skb_queue_tail(&local->pending[queue], skb); |
8f77f384 JB |
667 | } |
668 | ||
3b8d81e0 | 669 | for (i = 0; i < hw->queues; i++) |
8f77f384 | 670 | __ieee80211_wake_queue(hw, i, |
cca07b00 | 671 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
f6c7f03f | 672 | false, &flags); |
8f77f384 | 673 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
8f77f384 JB |
674 | } |
675 | ||
ce7c9111 | 676 | void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, |
445ea4e8 | 677 | unsigned long queues, |
cca07b00 LC |
678 | enum queue_stop_reason reason, |
679 | bool refcounted) | |
c2d1560a | 680 | { |
ce7c9111 KV |
681 | struct ieee80211_local *local = hw_to_local(hw); |
682 | unsigned long flags; | |
c2d1560a JB |
683 | int i; |
684 | ||
ce7c9111 KV |
685 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
686 | ||
445ea4e8 | 687 | for_each_set_bit(i, &queues, hw->queues) |
cca07b00 | 688 | __ieee80211_stop_queue(hw, i, reason, refcounted); |
ce7c9111 KV |
689 | |
690 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
691 | } | |
692 | ||
693 | void ieee80211_stop_queues(struct ieee80211_hw *hw) | |
694 | { | |
445ea4e8 | 695 | ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
696 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
697 | false); | |
c2d1560a JB |
698 | } |
699 | EXPORT_SYMBOL(ieee80211_stop_queues); | |
700 | ||
92ab8535 TW |
701 | int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue) |
702 | { | |
703 | struct ieee80211_local *local = hw_to_local(hw); | |
3b8d81e0 JB |
704 | unsigned long flags; |
705 | int ret; | |
96f5e66e | 706 | |
e4e72fb4 JB |
707 | if (WARN_ON(queue >= hw->queues)) |
708 | return true; | |
96f5e66e | 709 | |
3b8d81e0 | 710 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
2419ea14 TP |
711 | ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER, |
712 | &local->queue_stop_reasons[queue]); | |
3b8d81e0 JB |
713 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
714 | return ret; | |
92ab8535 TW |
715 | } |
716 | EXPORT_SYMBOL(ieee80211_queue_stopped); | |
717 | ||
ce7c9111 | 718 | void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, |
445ea4e8 | 719 | unsigned long queues, |
cca07b00 LC |
720 | enum queue_stop_reason reason, |
721 | bool refcounted) | |
c2d1560a | 722 | { |
ce7c9111 KV |
723 | struct ieee80211_local *local = hw_to_local(hw); |
724 | unsigned long flags; | |
c2d1560a JB |
725 | int i; |
726 | ||
ce7c9111 KV |
727 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
728 | ||
445ea4e8 | 729 | for_each_set_bit(i, &queues, hw->queues) |
f6c7f03f | 730 | __ieee80211_wake_queue(hw, i, reason, refcounted, &flags); |
ce7c9111 KV |
731 | |
732 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
733 | } | |
734 | ||
735 | void ieee80211_wake_queues(struct ieee80211_hw *hw) | |
736 | { | |
445ea4e8 | 737 | ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
738 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
739 | false); | |
c2d1560a JB |
740 | } |
741 | EXPORT_SYMBOL(ieee80211_wake_queues); | |
dabeb344 | 742 | |
26da23b6 LC |
743 | static unsigned int |
744 | ieee80211_get_vif_queues(struct ieee80211_local *local, | |
745 | struct ieee80211_sub_if_data *sdata) | |
39ecc01d | 746 | { |
26da23b6 | 747 | unsigned int queues; |
39ecc01d | 748 | |
30686bf7 | 749 | if (sdata && ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) { |
39ecc01d JB |
750 | int ac; |
751 | ||
752 | queues = 0; | |
753 | ||
754 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
755 | queues |= BIT(sdata->vif.hw_queue[ac]); | |
756 | if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE) | |
757 | queues |= BIT(sdata->vif.cab_queue); | |
758 | } else { | |
759 | /* all queues */ | |
760 | queues = BIT(local->hw.queues) - 1; | |
761 | } | |
762 | ||
26da23b6 LC |
763 | return queues; |
764 | } | |
765 | ||
4f9610d5 LK |
766 | void __ieee80211_flush_queues(struct ieee80211_local *local, |
767 | struct ieee80211_sub_if_data *sdata, | |
3b24f4c6 | 768 | unsigned int queues, bool drop) |
26da23b6 | 769 | { |
26da23b6 LC |
770 | if (!local->ops->flush) |
771 | return; | |
772 | ||
4f9610d5 LK |
773 | /* |
774 | * If no queue was set, or if the HW doesn't support | |
775 | * IEEE80211_HW_QUEUE_CONTROL - flush all queues | |
776 | */ | |
30686bf7 | 777 | if (!queues || !ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) |
4f9610d5 | 778 | queues = ieee80211_get_vif_queues(local, sdata); |
26da23b6 | 779 | |
59f48fe2 | 780 | ieee80211_stop_queues_by_reason(&local->hw, queues, |
cca07b00 LC |
781 | IEEE80211_QUEUE_STOP_REASON_FLUSH, |
782 | false); | |
445ea4e8 | 783 | |
3b24f4c6 | 784 | drv_flush(local, sdata, queues, drop); |
445ea4e8 | 785 | |
59f48fe2 | 786 | ieee80211_wake_queues_by_reason(&local->hw, queues, |
cca07b00 LC |
787 | IEEE80211_QUEUE_STOP_REASON_FLUSH, |
788 | false); | |
39ecc01d JB |
789 | } |
790 | ||
4f9610d5 | 791 | void ieee80211_flush_queues(struct ieee80211_local *local, |
3b24f4c6 | 792 | struct ieee80211_sub_if_data *sdata, bool drop) |
4f9610d5 | 793 | { |
3b24f4c6 | 794 | __ieee80211_flush_queues(local, sdata, 0, drop); |
4f9610d5 LK |
795 | } |
796 | ||
26da23b6 LC |
797 | void ieee80211_stop_vif_queues(struct ieee80211_local *local, |
798 | struct ieee80211_sub_if_data *sdata, | |
799 | enum queue_stop_reason reason) | |
800 | { | |
801 | ieee80211_stop_queues_by_reason(&local->hw, | |
802 | ieee80211_get_vif_queues(local, sdata), | |
803 | reason, true); | |
804 | } | |
805 | ||
806 | void ieee80211_wake_vif_queues(struct ieee80211_local *local, | |
807 | struct ieee80211_sub_if_data *sdata, | |
808 | enum queue_stop_reason reason) | |
809 | { | |
810 | ieee80211_wake_queues_by_reason(&local->hw, | |
811 | ieee80211_get_vif_queues(local, sdata), | |
812 | reason, true); | |
813 | } | |
814 | ||
3384d757 AN |
815 | static void __iterate_interfaces(struct ieee80211_local *local, |
816 | u32 iter_flags, | |
817 | void (*iterator)(void *data, u8 *mac, | |
818 | struct ieee80211_vif *vif), | |
819 | void *data) | |
dabeb344 | 820 | { |
dabeb344 | 821 | struct ieee80211_sub_if_data *sdata; |
3384d757 | 822 | bool active_only = iter_flags & IEEE80211_IFACE_ITER_ACTIVE; |
dabeb344 | 823 | |
c7c71066 | 824 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
2f561feb | 825 | switch (sdata->vif.type) { |
05c914fe | 826 | case NL80211_IFTYPE_MONITOR: |
d8212184 | 827 | if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE)) |
31eba5bc FF |
828 | continue; |
829 | break; | |
05c914fe | 830 | case NL80211_IFTYPE_AP_VLAN: |
2f561feb | 831 | continue; |
2ca27bcf | 832 | default: |
2f561feb ID |
833 | break; |
834 | } | |
8b2c9824 | 835 | if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) && |
3384d757 | 836 | active_only && !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) |
8b2c9824 | 837 | continue; |
265a0708 BG |
838 | if ((iter_flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) && |
839 | !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) | |
840 | continue; | |
3384d757 | 841 | if (ieee80211_sdata_running(sdata) || !active_only) |
47846c9b | 842 | iterator(data, sdata->vif.addr, |
2f561feb ID |
843 | &sdata->vif); |
844 | } | |
845 | ||
c7c71066 JB |
846 | sdata = rcu_dereference_check(local->monitor_sdata, |
847 | lockdep_is_held(&local->iflist_mtx) || | |
6dd23603 | 848 | lockdep_is_held(&local->hw.wiphy->mtx)); |
8b2c9824 | 849 | if (sdata && |
3384d757 | 850 | (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || !active_only || |
8b2c9824 | 851 | sdata->flags & IEEE80211_SDATA_IN_DRIVER)) |
685fb72b | 852 | iterator(data, sdata->vif.addr, &sdata->vif); |
c7c71066 | 853 | } |
685fb72b | 854 | |
3384d757 | 855 | void ieee80211_iterate_interfaces( |
c7c71066 JB |
856 | struct ieee80211_hw *hw, u32 iter_flags, |
857 | void (*iterator)(void *data, u8 *mac, | |
858 | struct ieee80211_vif *vif), | |
859 | void *data) | |
860 | { | |
861 | struct ieee80211_local *local = hw_to_local(hw); | |
862 | ||
863 | mutex_lock(&local->iflist_mtx); | |
3384d757 | 864 | __iterate_interfaces(local, iter_flags, iterator, data); |
c771c9d8 | 865 | mutex_unlock(&local->iflist_mtx); |
2f561feb | 866 | } |
3384d757 | 867 | EXPORT_SYMBOL_GPL(ieee80211_iterate_interfaces); |
2f561feb ID |
868 | |
869 | void ieee80211_iterate_active_interfaces_atomic( | |
8b2c9824 | 870 | struct ieee80211_hw *hw, u32 iter_flags, |
2f561feb ID |
871 | void (*iterator)(void *data, u8 *mac, |
872 | struct ieee80211_vif *vif), | |
873 | void *data) | |
874 | { | |
875 | struct ieee80211_local *local = hw_to_local(hw); | |
2f561feb | 876 | |
e38bad47 | 877 | rcu_read_lock(); |
3384d757 AN |
878 | __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, |
879 | iterator, data); | |
c7c71066 JB |
880 | rcu_read_unlock(); |
881 | } | |
882 | EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic); | |
dabeb344 | 883 | |
a05829a7 | 884 | void ieee80211_iterate_active_interfaces_mtx( |
c7c71066 JB |
885 | struct ieee80211_hw *hw, u32 iter_flags, |
886 | void (*iterator)(void *data, u8 *mac, | |
887 | struct ieee80211_vif *vif), | |
888 | void *data) | |
889 | { | |
890 | struct ieee80211_local *local = hw_to_local(hw); | |
e38bad47 | 891 | |
a05829a7 | 892 | lockdep_assert_wiphy(hw->wiphy); |
685fb72b | 893 | |
3384d757 AN |
894 | __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, |
895 | iterator, data); | |
dabeb344 | 896 | } |
a05829a7 | 897 | EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_mtx); |
37ffc8da | 898 | |
0fc1e049 AN |
899 | static void __iterate_stations(struct ieee80211_local *local, |
900 | void (*iterator)(void *data, | |
901 | struct ieee80211_sta *sta), | |
902 | void *data) | |
903 | { | |
904 | struct sta_info *sta; | |
905 | ||
906 | list_for_each_entry_rcu(sta, &local->sta_list, list) { | |
907 | if (!sta->uploaded) | |
908 | continue; | |
909 | ||
910 | iterator(data, &sta->sta); | |
911 | } | |
912 | } | |
913 | ||
acb99b9b MB |
914 | void ieee80211_iterate_stations(struct ieee80211_hw *hw, |
915 | void (*iterator)(void *data, | |
916 | struct ieee80211_sta *sta), | |
917 | void *data) | |
918 | { | |
919 | struct ieee80211_local *local = hw_to_local(hw); | |
920 | ||
921 | mutex_lock(&local->sta_mtx); | |
922 | __iterate_stations(local, iterator, data); | |
923 | mutex_unlock(&local->sta_mtx); | |
924 | } | |
925 | EXPORT_SYMBOL_GPL(ieee80211_iterate_stations); | |
926 | ||
0fc1e049 AN |
927 | void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, |
928 | void (*iterator)(void *data, | |
929 | struct ieee80211_sta *sta), | |
930 | void *data) | |
931 | { | |
932 | struct ieee80211_local *local = hw_to_local(hw); | |
933 | ||
934 | rcu_read_lock(); | |
935 | __iterate_stations(local, iterator, data); | |
936 | rcu_read_unlock(); | |
937 | } | |
938 | EXPORT_SYMBOL_GPL(ieee80211_iterate_stations_atomic); | |
939 | ||
ad7e718c JB |
940 | struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev) |
941 | { | |
942 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); | |
943 | ||
944 | if (!ieee80211_sdata_running(sdata) || | |
945 | !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) | |
946 | return NULL; | |
947 | return &sdata->vif; | |
948 | } | |
949 | EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif); | |
950 | ||
dc5a1ad7 EG |
951 | struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif) |
952 | { | |
6513e98e JB |
953 | if (!vif) |
954 | return NULL; | |
955 | ||
f30386a8 | 956 | return &vif_to_sdata(vif)->wdev; |
dc5a1ad7 EG |
957 | } |
958 | EXPORT_SYMBOL_GPL(ieee80211_vif_to_wdev); | |
959 | ||
42935eca LR |
960 | /* |
961 | * Nothing should have been stuffed into the workqueue during | |
4afaff17 EG |
962 | * the suspend->resume cycle. Since we can't check each caller |
963 | * of this function if we are already quiescing / suspended, | |
964 | * check here and don't WARN since this can actually happen when | |
965 | * the rx path (for example) is racing against __ieee80211_suspend | |
966 | * and suspending / quiescing was set after the rx path checked | |
967 | * them. | |
42935eca LR |
968 | */ |
969 | static bool ieee80211_can_queue_work(struct ieee80211_local *local) | |
970 | { | |
4afaff17 EG |
971 | if (local->quiescing || (local->suspended && !local->resuming)) { |
972 | pr_warn("queueing ieee80211 work while going to suspend\n"); | |
ceb99fe0 | 973 | return false; |
4afaff17 | 974 | } |
42935eca LR |
975 | |
976 | return true; | |
977 | } | |
978 | ||
979 | void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work) | |
980 | { | |
981 | struct ieee80211_local *local = hw_to_local(hw); | |
982 | ||
983 | if (!ieee80211_can_queue_work(local)) | |
984 | return; | |
985 | ||
986 | queue_work(local->workqueue, work); | |
987 | } | |
988 | EXPORT_SYMBOL(ieee80211_queue_work); | |
989 | ||
990 | void ieee80211_queue_delayed_work(struct ieee80211_hw *hw, | |
991 | struct delayed_work *dwork, | |
992 | unsigned long delay) | |
993 | { | |
994 | struct ieee80211_local *local = hw_to_local(hw); | |
995 | ||
996 | if (!ieee80211_can_queue_work(local)) | |
997 | return; | |
998 | ||
999 | queue_delayed_work(local->workqueue, dwork, delay); | |
1000 | } | |
1001 | EXPORT_SYMBOL(ieee80211_queue_delayed_work); | |
1002 | ||
ea5cba26 JB |
1003 | static void |
1004 | ieee80211_parse_extension_element(u32 *crc, | |
1005 | const struct element *elem, | |
1006 | struct ieee802_11_elems *elems, | |
1007 | struct ieee80211_elems_parse_params *params) | |
e4d005b8 JB |
1008 | { |
1009 | const void *data = elem->data + 1; | |
768c0b19 JB |
1010 | u8 len; |
1011 | ||
1012 | if (!elem->datalen) | |
1013 | return; | |
1014 | ||
1015 | len = elem->datalen - 1; | |
e4d005b8 JB |
1016 | |
1017 | switch (elem->data[0]) { | |
1018 | case WLAN_EID_EXT_HE_MU_EDCA: | |
652e8363 | 1019 | if (len >= sizeof(*elems->mu_edca_param_set)) { |
e4d005b8 JB |
1020 | elems->mu_edca_param_set = data; |
1021 | if (crc) | |
1022 | *crc = crc32_be(*crc, (void *)elem, | |
1023 | elem->datalen + 2); | |
1024 | } | |
1025 | break; | |
1026 | case WLAN_EID_EXT_HE_CAPABILITY: | |
bd4e4d62 JB |
1027 | if (ieee80211_he_capa_size_ok(data, len)) { |
1028 | elems->he_cap = data; | |
1029 | elems->he_cap_len = len; | |
1030 | } | |
e4d005b8 JB |
1031 | break; |
1032 | case WLAN_EID_EXT_HE_OPERATION: | |
1033 | if (len >= sizeof(*elems->he_operation) && | |
0f7e90fa | 1034 | len >= ieee80211_he_oper_size(data) - 1) { |
660d81da JB |
1035 | if (crc) |
1036 | *crc = crc32_be(*crc, (void *)elem, | |
1037 | elem->datalen + 2); | |
e4d005b8 | 1038 | elems->he_operation = data; |
660d81da | 1039 | } |
e4d005b8 JB |
1040 | break; |
1041 | case WLAN_EID_EXT_UORA: | |
652e8363 | 1042 | if (len >= 1) |
e4d005b8 JB |
1043 | elems->uora_element = data; |
1044 | break; | |
1045 | case WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME: | |
1046 | if (len == 3) | |
1047 | elems->max_channel_switch_time = data; | |
1048 | break; | |
1049 | case WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION: | |
652e8363 | 1050 | if (len >= sizeof(*elems->mbssid_config_ie)) |
e4d005b8 JB |
1051 | elems->mbssid_config_ie = data; |
1052 | break; | |
1053 | case WLAN_EID_EXT_HE_SPR: | |
1054 | if (len >= sizeof(*elems->he_spr) && | |
1055 | len >= ieee80211_he_spr_size(data)) | |
1056 | elems->he_spr = data; | |
1057 | break; | |
a6cf28e0 | 1058 | case WLAN_EID_EXT_HE_6GHZ_CAPA: |
652e8363 | 1059 | if (len >= sizeof(*elems->he_6ghz_capa)) |
a6cf28e0 RM |
1060 | elems->he_6ghz_capa = data; |
1061 | break; | |
f0e6bea8 IP |
1062 | case WLAN_EID_EXT_EHT_CAPABILITY: |
1063 | if (ieee80211_eht_capa_size_ok(elems->he_cap, | |
ea5cba26 JB |
1064 | data, len, |
1065 | params->from_ap)) { | |
f0e6bea8 IP |
1066 | elems->eht_cap = data; |
1067 | elems->eht_cap_len = len; | |
1068 | } | |
1069 | break; | |
1070 | case WLAN_EID_EXT_EHT_OPERATION: | |
1071 | if (ieee80211_eht_oper_size_ok(data, len)) | |
1072 | elems->eht_operation = data; | |
1073 | break; | |
425f4b5f | 1074 | case WLAN_EID_EXT_EHT_MULTI_LINK: |
45ebac4f | 1075 | if (ieee80211_mle_size_ok(data, len)) { |
425f4b5f | 1076 | elems->multi_link = (void *)data; |
45ebac4f IP |
1077 | elems->multi_link_len = len; |
1078 | } | |
425f4b5f | 1079 | break; |
e4d005b8 JB |
1080 | } |
1081 | } | |
1082 | ||
78ac51f8 | 1083 | static u32 |
fd17bf04 JB |
1084 | _ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params, |
1085 | struct ieee802_11_elems *elems, | |
1086 | const struct element *check_inherit) | |
dd76986b | 1087 | { |
671042a4 | 1088 | const struct element *elem; |
fd17bf04 | 1089 | bool calc_crc = params->filter != 0; |
fcff4f10 | 1090 | DECLARE_BITMAP(seen_elems, 256); |
fd17bf04 | 1091 | u32 crc = params->crc; |
b2e506bf | 1092 | const u8 *ie; |
dd76986b | 1093 | |
fcff4f10 | 1094 | bitmap_zero(seen_elems, 256); |
dd76986b | 1095 | |
fd17bf04 | 1096 | for_each_element(elem, params->start, params->len) { |
fcff4f10 | 1097 | bool elem_parse_failed; |
c17e28d1 JB |
1098 | u8 id = elem->id; |
1099 | u8 elen = elem->datalen; | |
1100 | const u8 *pos = elem->data; | |
fcff4f10 | 1101 | |
671042a4 SS |
1102 | if (check_inherit && |
1103 | !cfg80211_is_element_inherited(elem, | |
1104 | check_inherit)) | |
1105 | continue; | |
1106 | ||
9690fb16 JB |
1107 | switch (id) { |
1108 | case WLAN_EID_SSID: | |
1109 | case WLAN_EID_SUPP_RATES: | |
1110 | case WLAN_EID_FH_PARAMS: | |
1111 | case WLAN_EID_DS_PARAMS: | |
1112 | case WLAN_EID_CF_PARAMS: | |
1113 | case WLAN_EID_TIM: | |
1114 | case WLAN_EID_IBSS_PARAMS: | |
1115 | case WLAN_EID_CHALLENGE: | |
1116 | case WLAN_EID_RSN: | |
1117 | case WLAN_EID_ERP_INFO: | |
1118 | case WLAN_EID_EXT_SUPP_RATES: | |
1119 | case WLAN_EID_HT_CAPABILITY: | |
1120 | case WLAN_EID_HT_OPERATION: | |
1121 | case WLAN_EID_VHT_CAPABILITY: | |
1122 | case WLAN_EID_VHT_OPERATION: | |
1123 | case WLAN_EID_MESH_ID: | |
1124 | case WLAN_EID_MESH_CONFIG: | |
1125 | case WLAN_EID_PEER_MGMT: | |
1126 | case WLAN_EID_PREQ: | |
1127 | case WLAN_EID_PREP: | |
1128 | case WLAN_EID_PERR: | |
1129 | case WLAN_EID_RANN: | |
1130 | case WLAN_EID_CHANNEL_SWITCH: | |
1131 | case WLAN_EID_EXT_CHANSWITCH_ANN: | |
1132 | case WLAN_EID_COUNTRY: | |
1133 | case WLAN_EID_PWR_CONSTRAINT: | |
1134 | case WLAN_EID_TIMEOUT_INTERVAL: | |
85220d71 | 1135 | case WLAN_EID_SECONDARY_CHANNEL_OFFSET: |
b2e506bf | 1136 | case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: |
8f2535b9 | 1137 | case WLAN_EID_CHAN_SWITCH_PARAM: |
9041c1fa | 1138 | case WLAN_EID_EXT_CAPABILITY: |
53837584 AN |
1139 | case WLAN_EID_CHAN_SWITCH_TIMING: |
1140 | case WLAN_EID_LINK_ID: | |
e38a017b | 1141 | case WLAN_EID_BSS_MAX_IDLE_PERIOD: |
c0058df7 | 1142 | case WLAN_EID_RSNX: |
cd418ba6 TP |
1143 | case WLAN_EID_S1G_BCN_COMPAT: |
1144 | case WLAN_EID_S1G_CAPABILITIES: | |
1145 | case WLAN_EID_S1G_OPERATION: | |
1d00ce80 | 1146 | case WLAN_EID_AID_RESPONSE: |
cd418ba6 | 1147 | case WLAN_EID_S1G_SHORT_BCN_INTERVAL: |
b2e506bf JB |
1148 | /* |
1149 | * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible | |
1150 | * that if the content gets bigger it might be needed more than once | |
1151 | */ | |
9690fb16 JB |
1152 | if (test_bit(id, seen_elems)) { |
1153 | elems->parse_error = true; | |
9690fb16 JB |
1154 | continue; |
1155 | } | |
1156 | break; | |
fcff4f10 | 1157 | } |
dd76986b | 1158 | |
fd17bf04 | 1159 | if (calc_crc && id < 64 && (params->filter & (1ULL << id))) |
dd76986b JB |
1160 | crc = crc32_be(crc, pos - 2, elen + 2); |
1161 | ||
fcff4f10 PS |
1162 | elem_parse_failed = false; |
1163 | ||
dd76986b | 1164 | switch (id) { |
53837584 | 1165 | case WLAN_EID_LINK_ID: |
652e8363 | 1166 | if (elen + 2 < sizeof(struct ieee80211_tdls_lnkie)) { |
53837584 AN |
1167 | elem_parse_failed = true; |
1168 | break; | |
1169 | } | |
1170 | elems->lnk_id = (void *)(pos - 2); | |
1171 | break; | |
1172 | case WLAN_EID_CHAN_SWITCH_TIMING: | |
652e8363 | 1173 | if (elen < sizeof(struct ieee80211_ch_switch_timing)) { |
53837584 AN |
1174 | elem_parse_failed = true; |
1175 | break; | |
1176 | } | |
1177 | elems->ch_sw_timing = (void *)pos; | |
1178 | break; | |
9041c1fa AN |
1179 | case WLAN_EID_EXT_CAPABILITY: |
1180 | elems->ext_capab = pos; | |
1181 | elems->ext_capab_len = elen; | |
1182 | break; | |
dd76986b JB |
1183 | case WLAN_EID_SSID: |
1184 | elems->ssid = pos; | |
1185 | elems->ssid_len = elen; | |
1186 | break; | |
1187 | case WLAN_EID_SUPP_RATES: | |
1188 | elems->supp_rates = pos; | |
1189 | elems->supp_rates_len = elen; | |
1190 | break; | |
dd76986b | 1191 | case WLAN_EID_DS_PARAMS: |
1cd8e88e JB |
1192 | if (elen >= 1) |
1193 | elems->ds_params = pos; | |
1194 | else | |
1195 | elem_parse_failed = true; | |
dd76986b | 1196 | break; |
dd76986b JB |
1197 | case WLAN_EID_TIM: |
1198 | if (elen >= sizeof(struct ieee80211_tim_ie)) { | |
1199 | elems->tim = (void *)pos; | |
1200 | elems->tim_len = elen; | |
fcff4f10 PS |
1201 | } else |
1202 | elem_parse_failed = true; | |
dd76986b | 1203 | break; |
dd76986b JB |
1204 | case WLAN_EID_VENDOR_SPECIFIC: |
1205 | if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && | |
1206 | pos[2] == 0xf2) { | |
1207 | /* Microsoft OUI (00:50:F2) */ | |
1208 | ||
1209 | if (calc_crc) | |
1210 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1211 | ||
441a33ba | 1212 | if (elen >= 5 && pos[3] == 2) { |
dd76986b JB |
1213 | /* OUI Type 2 - WMM IE */ |
1214 | if (pos[4] == 0) { | |
1215 | elems->wmm_info = pos; | |
1216 | elems->wmm_info_len = elen; | |
1217 | } else if (pos[4] == 1) { | |
1218 | elems->wmm_param = pos; | |
1219 | elems->wmm_param_len = elen; | |
1220 | } | |
1221 | } | |
1222 | } | |
1223 | break; | |
1224 | case WLAN_EID_RSN: | |
1225 | elems->rsn = pos; | |
1226 | elems->rsn_len = elen; | |
1227 | break; | |
1228 | case WLAN_EID_ERP_INFO: | |
1946bed9 JB |
1229 | if (elen >= 1) |
1230 | elems->erp_info = pos; | |
1231 | else | |
1232 | elem_parse_failed = true; | |
dd76986b JB |
1233 | break; |
1234 | case WLAN_EID_EXT_SUPP_RATES: | |
1235 | elems->ext_supp_rates = pos; | |
1236 | elems->ext_supp_rates_len = elen; | |
1237 | break; | |
1238 | case WLAN_EID_HT_CAPABILITY: | |
1239 | if (elen >= sizeof(struct ieee80211_ht_cap)) | |
1240 | elems->ht_cap_elem = (void *)pos; | |
fcff4f10 PS |
1241 | else |
1242 | elem_parse_failed = true; | |
dd76986b | 1243 | break; |
074d46d1 JB |
1244 | case WLAN_EID_HT_OPERATION: |
1245 | if (elen >= sizeof(struct ieee80211_ht_operation)) | |
1246 | elems->ht_operation = (void *)pos; | |
fcff4f10 PS |
1247 | else |
1248 | elem_parse_failed = true; | |
dd76986b | 1249 | break; |
818255ea MP |
1250 | case WLAN_EID_VHT_CAPABILITY: |
1251 | if (elen >= sizeof(struct ieee80211_vht_cap)) | |
1252 | elems->vht_cap_elem = (void *)pos; | |
1253 | else | |
1254 | elem_parse_failed = true; | |
1255 | break; | |
1256 | case WLAN_EID_VHT_OPERATION: | |
a04564c9 | 1257 | if (elen >= sizeof(struct ieee80211_vht_operation)) { |
818255ea | 1258 | elems->vht_operation = (void *)pos; |
a04564c9 JB |
1259 | if (calc_crc) |
1260 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1261 | break; | |
1262 | } | |
1263 | elem_parse_failed = true; | |
818255ea | 1264 | break; |
bee7f586 | 1265 | case WLAN_EID_OPMODE_NOTIF: |
a04564c9 | 1266 | if (elen > 0) { |
bee7f586 | 1267 | elems->opmode_notif = pos; |
a04564c9 JB |
1268 | if (calc_crc) |
1269 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1270 | break; | |
1271 | } | |
1272 | elem_parse_failed = true; | |
bee7f586 | 1273 | break; |
dd76986b JB |
1274 | case WLAN_EID_MESH_ID: |
1275 | elems->mesh_id = pos; | |
1276 | elems->mesh_id_len = elen; | |
1277 | break; | |
1278 | case WLAN_EID_MESH_CONFIG: | |
1279 | if (elen >= sizeof(struct ieee80211_meshconf_ie)) | |
1280 | elems->mesh_config = (void *)pos; | |
fcff4f10 PS |
1281 | else |
1282 | elem_parse_failed = true; | |
dd76986b JB |
1283 | break; |
1284 | case WLAN_EID_PEER_MGMT: | |
1285 | elems->peering = pos; | |
1286 | elems->peering_len = elen; | |
1287 | break; | |
3f52b7e3 MP |
1288 | case WLAN_EID_MESH_AWAKE_WINDOW: |
1289 | if (elen >= 2) | |
1290 | elems->awake_window = (void *)pos; | |
1291 | break; | |
dd76986b JB |
1292 | case WLAN_EID_PREQ: |
1293 | elems->preq = pos; | |
1294 | elems->preq_len = elen; | |
1295 | break; | |
1296 | case WLAN_EID_PREP: | |
1297 | elems->prep = pos; | |
1298 | elems->prep_len = elen; | |
1299 | break; | |
1300 | case WLAN_EID_PERR: | |
1301 | elems->perr = pos; | |
1302 | elems->perr_len = elen; | |
1303 | break; | |
1304 | case WLAN_EID_RANN: | |
1305 | if (elen >= sizeof(struct ieee80211_rann_ie)) | |
1306 | elems->rann = (void *)pos; | |
fcff4f10 PS |
1307 | else |
1308 | elem_parse_failed = true; | |
dd76986b JB |
1309 | break; |
1310 | case WLAN_EID_CHANNEL_SWITCH: | |
5bc1420b JB |
1311 | if (elen != sizeof(struct ieee80211_channel_sw_ie)) { |
1312 | elem_parse_failed = true; | |
1313 | break; | |
1314 | } | |
1315 | elems->ch_switch_ie = (void *)pos; | |
dd76986b | 1316 | break; |
b4f286a1 JB |
1317 | case WLAN_EID_EXT_CHANSWITCH_ANN: |
1318 | if (elen != sizeof(struct ieee80211_ext_chansw_ie)) { | |
1319 | elem_parse_failed = true; | |
1320 | break; | |
1321 | } | |
1322 | elems->ext_chansw_ie = (void *)pos; | |
1323 | break; | |
85220d71 JB |
1324 | case WLAN_EID_SECONDARY_CHANNEL_OFFSET: |
1325 | if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) { | |
1326 | elem_parse_failed = true; | |
1327 | break; | |
1328 | } | |
1329 | elems->sec_chan_offs = (void *)pos; | |
1330 | break; | |
8f2535b9 | 1331 | case WLAN_EID_CHAN_SWITCH_PARAM: |
652e8363 | 1332 | if (elen < |
8f2535b9 CYY |
1333 | sizeof(*elems->mesh_chansw_params_ie)) { |
1334 | elem_parse_failed = true; | |
1335 | break; | |
1336 | } | |
1337 | elems->mesh_chansw_params_ie = (void *)pos; | |
1338 | break; | |
b2e506bf | 1339 | case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: |
fd17bf04 | 1340 | if (!params->action || |
652e8363 | 1341 | elen < sizeof(*elems->wide_bw_chansw_ie)) { |
b2e506bf JB |
1342 | elem_parse_failed = true; |
1343 | break; | |
1344 | } | |
1345 | elems->wide_bw_chansw_ie = (void *)pos; | |
1346 | break; | |
1347 | case WLAN_EID_CHANNEL_SWITCH_WRAPPER: | |
fd17bf04 | 1348 | if (params->action) { |
b2e506bf JB |
1349 | elem_parse_failed = true; |
1350 | break; | |
1351 | } | |
1352 | /* | |
1353 | * This is a bit tricky, but as we only care about | |
1354 | * the wide bandwidth channel switch element, so | |
1355 | * just parse it out manually. | |
1356 | */ | |
1357 | ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, | |
1358 | pos, elen); | |
1359 | if (ie) { | |
652e8363 | 1360 | if (ie[1] >= sizeof(*elems->wide_bw_chansw_ie)) |
b2e506bf JB |
1361 | elems->wide_bw_chansw_ie = |
1362 | (void *)(ie + 2); | |
1363 | else | |
1364 | elem_parse_failed = true; | |
1365 | } | |
1366 | break; | |
dd76986b JB |
1367 | case WLAN_EID_COUNTRY: |
1368 | elems->country_elem = pos; | |
1369 | elems->country_elem_len = elen; | |
1370 | break; | |
1371 | case WLAN_EID_PWR_CONSTRAINT: | |
761a48d2 JB |
1372 | if (elen != 1) { |
1373 | elem_parse_failed = true; | |
1374 | break; | |
1375 | } | |
dd76986b | 1376 | elems->pwr_constr_elem = pos; |
dd76986b | 1377 | break; |
c8d65917 SG |
1378 | case WLAN_EID_CISCO_VENDOR_SPECIFIC: |
1379 | /* Lots of different options exist, but we only care | |
1380 | * about the Dynamic Transmit Power Control element. | |
1381 | * First check for the Cisco OUI, then for the DTPC | |
1382 | * tag (0x00). | |
1383 | */ | |
1384 | if (elen < 4) { | |
1385 | elem_parse_failed = true; | |
1386 | break; | |
1387 | } | |
1388 | ||
1389 | if (pos[0] != 0x00 || pos[1] != 0x40 || | |
1390 | pos[2] != 0x96 || pos[3] != 0x00) | |
1391 | break; | |
1392 | ||
1393 | if (elen != 6) { | |
1394 | elem_parse_failed = true; | |
1395 | break; | |
1396 | } | |
1397 | ||
1398 | if (calc_crc) | |
1399 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1400 | ||
1401 | elems->cisco_dtpc_elem = pos; | |
1402 | break; | |
2aa485e1 | 1403 | case WLAN_EID_ADDBA_EXT: |
652e8363 | 1404 | if (elen < sizeof(struct ieee80211_addba_ext_ie)) { |
2aa485e1 JC |
1405 | elem_parse_failed = true; |
1406 | break; | |
1407 | } | |
1408 | elems->addba_ext_ie = (void *)pos; | |
1409 | break; | |
dd76986b | 1410 | case WLAN_EID_TIMEOUT_INTERVAL: |
79ba1d89 JB |
1411 | if (elen >= sizeof(struct ieee80211_timeout_interval_ie)) |
1412 | elems->timeout_int = (void *)pos; | |
1413 | else | |
1414 | elem_parse_failed = true; | |
dd76986b | 1415 | break; |
e38a017b AS |
1416 | case WLAN_EID_BSS_MAX_IDLE_PERIOD: |
1417 | if (elen >= sizeof(*elems->max_idle_period_ie)) | |
1418 | elems->max_idle_period_ie = (void *)pos; | |
1419 | break; | |
c0058df7 ST |
1420 | case WLAN_EID_RSNX: |
1421 | elems->rsnx = pos; | |
1422 | elems->rsnx_len = elen; | |
1423 | break; | |
b0345850 WG |
1424 | case WLAN_EID_TX_POWER_ENVELOPE: |
1425 | if (elen < 1 || | |
1426 | elen > sizeof(struct ieee80211_tx_pwr_env)) | |
1427 | break; | |
1428 | ||
1429 | if (elems->tx_pwr_env_num >= ARRAY_SIZE(elems->tx_pwr_env)) | |
1430 | break; | |
1431 | ||
1432 | elems->tx_pwr_env[elems->tx_pwr_env_num] = (void *)pos; | |
1433 | elems->tx_pwr_env_len[elems->tx_pwr_env_num] = elen; | |
1434 | elems->tx_pwr_env_num++; | |
1435 | break; | |
41cbb0f5 | 1436 | case WLAN_EID_EXTENSION: |
e4d005b8 JB |
1437 | ieee80211_parse_extension_element(calc_crc ? |
1438 | &crc : NULL, | |
ea5cba26 | 1439 | elem, elems, params); |
41cbb0f5 | 1440 | break; |
cd418ba6 | 1441 | case WLAN_EID_S1G_CAPABILITIES: |
652e8363 | 1442 | if (elen >= sizeof(*elems->s1g_capab)) |
cd418ba6 TP |
1443 | elems->s1g_capab = (void *)pos; |
1444 | else | |
1445 | elem_parse_failed = true; | |
1446 | break; | |
1447 | case WLAN_EID_S1G_OPERATION: | |
1448 | if (elen == sizeof(*elems->s1g_oper)) | |
1449 | elems->s1g_oper = (void *)pos; | |
1450 | else | |
1451 | elem_parse_failed = true; | |
1452 | break; | |
1453 | case WLAN_EID_S1G_BCN_COMPAT: | |
1454 | if (elen == sizeof(*elems->s1g_bcn_compat)) | |
1455 | elems->s1g_bcn_compat = (void *)pos; | |
1456 | else | |
1457 | elem_parse_failed = true; | |
1458 | break; | |
1d00ce80 TP |
1459 | case WLAN_EID_AID_RESPONSE: |
1460 | if (elen == sizeof(struct ieee80211_aid_response_ie)) | |
1461 | elems->aid_resp = (void *)pos; | |
1462 | else | |
1463 | elem_parse_failed = true; | |
1464 | break; | |
dd76986b JB |
1465 | default: |
1466 | break; | |
1467 | } | |
1468 | ||
fcff4f10 PS |
1469 | if (elem_parse_failed) |
1470 | elems->parse_error = true; | |
1471 | else | |
5df45690 | 1472 | __set_bit(id, seen_elems); |
dd76986b JB |
1473 | } |
1474 | ||
fd17bf04 | 1475 | if (!for_each_element_completed(elem, params->start, params->len)) |
fcff4f10 PS |
1476 | elems->parse_error = true; |
1477 | ||
dd76986b JB |
1478 | return crc; |
1479 | } | |
1480 | ||
5023b14c SS |
1481 | static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len, |
1482 | struct ieee802_11_elems *elems, | |
38c6aa29 | 1483 | struct cfg80211_bss *bss, |
5809a5d5 | 1484 | u8 *nontransmitted_profile) |
671042a4 SS |
1485 | { |
1486 | const struct element *elem, *sub; | |
5023b14c SS |
1487 | size_t profile_len = 0; |
1488 | bool found = false; | |
671042a4 | 1489 | |
38c6aa29 | 1490 | if (!bss || !bss->transmitted_bss) |
5023b14c | 1491 | return profile_len; |
671042a4 SS |
1492 | |
1493 | for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, start, len) { | |
1494 | if (elem->datalen < 2) | |
1495 | continue; | |
1496 | ||
1497 | for_each_element(sub, elem->data + 1, elem->datalen - 1) { | |
1498 | u8 new_bssid[ETH_ALEN]; | |
1499 | const u8 *index; | |
1500 | ||
1501 | if (sub->id != 0 || sub->datalen < 4) { | |
1502 | /* not a valid BSS profile */ | |
1503 | continue; | |
1504 | } | |
1505 | ||
1506 | if (sub->data[0] != WLAN_EID_NON_TX_BSSID_CAP || | |
1507 | sub->data[1] != 2) { | |
1508 | /* The first element of the | |
1509 | * Nontransmitted BSSID Profile is not | |
1510 | * the Nontransmitted BSSID Capability | |
1511 | * element. | |
1512 | */ | |
1513 | continue; | |
1514 | } | |
1515 | ||
5809a5d5 | 1516 | memset(nontransmitted_profile, 0, len); |
5023b14c SS |
1517 | profile_len = cfg80211_merge_profile(start, len, |
1518 | elem, | |
1519 | sub, | |
1520 | nontransmitted_profile, | |
1521 | len); | |
1522 | ||
671042a4 SS |
1523 | /* found a Nontransmitted BSSID Profile */ |
1524 | index = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, | |
5809a5d5 | 1525 | nontransmitted_profile, |
5023b14c | 1526 | profile_len); |
671042a4 SS |
1527 | if (!index || index[1] < 1 || index[2] == 0) { |
1528 | /* Invalid MBSSID Index element */ | |
1529 | continue; | |
1530 | } | |
1531 | ||
38c6aa29 | 1532 | cfg80211_gen_new_bssid(bss->transmitted_bss->bssid, |
671042a4 SS |
1533 | elem->data[0], |
1534 | index[2], | |
1535 | new_bssid); | |
38c6aa29 | 1536 | if (ether_addr_equal(new_bssid, bss->bssid)) { |
5023b14c | 1537 | found = true; |
671042a4 SS |
1538 | elems->bssid_index_len = index[1]; |
1539 | elems->bssid_index = (void *)&index[2]; | |
1540 | break; | |
1541 | } | |
1542 | } | |
1543 | } | |
5023b14c SS |
1544 | |
1545 | return found ? profile_len : 0; | |
671042a4 SS |
1546 | } |
1547 | ||
45ebac4f IP |
1548 | static void ieee80211_defragment_element(struct ieee802_11_elems *elems, |
1549 | void **elem_ptr, size_t *len, | |
1550 | size_t total_len, u8 frag_id) | |
1551 | { | |
1552 | u8 *data = *elem_ptr, *pos, *start; | |
1553 | const struct element *elem; | |
1554 | ||
1555 | /* | |
1556 | * Since 'data' points to the data of the element, not the element | |
1557 | * itself, allow 254 in case it was an extended element where the | |
1558 | * extended ID isn't part of the data we see here and thus not part of | |
1559 | * 'len' either. | |
1560 | */ | |
1561 | if (!data || (*len != 254 && *len != 255)) | |
1562 | return; | |
1563 | ||
1564 | start = elems->scratch_pos; | |
1565 | ||
1566 | if (WARN_ON(*len > (elems->scratch + elems->scratch_len - | |
1567 | elems->scratch_pos))) | |
1568 | return; | |
1569 | ||
1570 | memcpy(elems->scratch_pos, data, *len); | |
1571 | elems->scratch_pos += *len; | |
1572 | ||
1573 | pos = data + *len; | |
1574 | total_len -= *len; | |
1575 | for_each_element(elem, pos, total_len) { | |
1576 | if (elem->id != frag_id) | |
1577 | break; | |
1578 | ||
1579 | if (WARN_ON(elem->datalen > | |
1580 | (elems->scratch + elems->scratch_len - | |
1581 | elems->scratch_pos))) | |
1582 | return; | |
1583 | ||
1584 | memcpy(elems->scratch_pos, elem->data, elem->datalen); | |
1585 | elems->scratch_pos += elem->datalen; | |
1586 | ||
1587 | *len += elem->datalen; | |
1588 | } | |
1589 | ||
1590 | *elem_ptr = start; | |
1591 | } | |
1592 | ||
1593 | static void ieee80211_mle_get_sta_prof(struct ieee802_11_elems *elems, | |
1594 | u8 link_id) | |
1595 | { | |
1596 | const struct ieee80211_multi_link_elem *ml = elems->multi_link; | |
1597 | size_t ml_len = elems->multi_link_len; | |
1598 | const struct element *sub; | |
1599 | ||
1600 | if (!ml || !ml_len) | |
1601 | return; | |
1602 | ||
1603 | if (le16_get_bits(ml->control, IEEE80211_ML_CONTROL_TYPE) != | |
1604 | IEEE80211_ML_CONTROL_TYPE_BASIC) | |
1605 | return; | |
1606 | ||
1607 | for_each_mle_subelement(sub, (u8 *)ml, ml_len) { | |
1608 | struct ieee80211_mle_per_sta_profile *prof = (void *)sub->data; | |
1609 | u16 control; | |
1610 | ||
1611 | if (sub->id != IEEE80211_MLE_SUBELEM_PER_STA_PROFILE) | |
1612 | continue; | |
1613 | ||
1614 | if (!ieee80211_mle_sta_prof_size_ok(sub->data, sub->datalen)) | |
1615 | return; | |
1616 | ||
1617 | control = le16_to_cpu(prof->control); | |
1618 | ||
1619 | if (link_id != u16_get_bits(control, | |
1620 | IEEE80211_MLE_STA_CONTROL_LINK_ID)) | |
1621 | continue; | |
1622 | ||
1623 | if (!(control & IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE)) | |
1624 | return; | |
1625 | ||
1626 | elems->prof = prof; | |
1627 | elems->sta_prof_len = sub->datalen; | |
1628 | ||
1629 | /* the sub element can be fragmented */ | |
1630 | ieee80211_defragment_element(elems, (void **)&elems->prof, | |
1631 | &elems->sta_prof_len, | |
1632 | ml_len - (sub->data - (u8 *)ml), | |
1633 | IEEE80211_MLE_SUBELEM_FRAGMENT); | |
1634 | return; | |
1635 | } | |
1636 | } | |
1637 | ||
1638 | static void ieee80211_mle_parse_link(struct ieee802_11_elems *elems, | |
1639 | struct ieee80211_elems_parse_params *params) | |
1640 | { | |
1641 | struct ieee80211_mle_per_sta_profile *prof; | |
1642 | struct ieee80211_elems_parse_params sub = { | |
1643 | .action = params->action, | |
1644 | .from_ap = params->from_ap, | |
1645 | .link_id = -1, | |
1646 | }; | |
1647 | const struct element *non_inherit = NULL; | |
1648 | const u8 *end; | |
1649 | ||
1650 | if (params->link_id == -1) | |
1651 | return; | |
1652 | ||
1653 | ieee80211_defragment_element(elems, (void **)&elems->multi_link, | |
1654 | &elems->multi_link_len, | |
1655 | elems->total_len - ((u8 *)elems->multi_link - | |
1656 | elems->ie_start), | |
1657 | WLAN_EID_FRAGMENT); | |
1658 | ||
1659 | ieee80211_mle_get_sta_prof(elems, params->link_id); | |
1660 | prof = elems->prof; | |
1661 | ||
1662 | if (!prof) | |
1663 | return; | |
1664 | ||
1665 | /* check if we have the 4 bytes for the fixed part in assoc response */ | |
1666 | if (elems->sta_prof_len < sizeof(*prof) + prof->sta_info_len - 1 + 4) { | |
1667 | elems->prof = NULL; | |
1668 | elems->sta_prof_len = 0; | |
1669 | return; | |
1670 | } | |
1671 | ||
1672 | /* | |
1673 | * Skip the capability information and the status code that are expected | |
1674 | * as part of the station profile in association response frames. Note | |
1675 | * the -1 is because the 'sta_info_len' is accounted to as part of the | |
1676 | * per-STA profile, but not part of the 'u8 variable[]' portion. | |
1677 | */ | |
1678 | sub.start = prof->variable + prof->sta_info_len - 1 + 4; | |
1679 | end = (const u8 *)prof + elems->sta_prof_len; | |
1680 | sub.len = end - sub.start; | |
1681 | ||
1682 | non_inherit = cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, | |
1683 | sub.start, sub.len); | |
1684 | _ieee802_11_parse_elems_full(&sub, elems, non_inherit); | |
1685 | } | |
1686 | ||
fd17bf04 JB |
1687 | struct ieee802_11_elems * |
1688 | ieee802_11_parse_elems_full(struct ieee80211_elems_parse_params *params) | |
78ac51f8 | 1689 | { |
5d24828d | 1690 | struct ieee802_11_elems *elems; |
671042a4 | 1691 | const struct element *non_inherit = NULL; |
5023b14c SS |
1692 | u8 *nontransmitted_profile; |
1693 | int nontransmitted_profile_len = 0; | |
45ebac4f | 1694 | size_t scratch_len = params->scratch_len ?: 2 * params->len; |
671042a4 | 1695 | |
45ebac4f | 1696 | elems = kzalloc(sizeof(*elems) + scratch_len, GFP_ATOMIC); |
5d24828d JB |
1697 | if (!elems) |
1698 | return NULL; | |
fd17bf04 JB |
1699 | elems->ie_start = params->start; |
1700 | elems->total_len = params->len; | |
45ebac4f IP |
1701 | elems->scratch_len = scratch_len; |
1702 | elems->scratch_pos = elems->scratch; | |
78ac51f8 | 1703 | |
fd17bf04 | 1704 | nontransmitted_profile = kmalloc(params->len, GFP_ATOMIC); |
5023b14c SS |
1705 | if (nontransmitted_profile) { |
1706 | nontransmitted_profile_len = | |
fd17bf04 | 1707 | ieee802_11_find_bssid_profile(params->start, params->len, |
38c6aa29 | 1708 | elems, params->bss, |
5809a5d5 | 1709 | nontransmitted_profile); |
671042a4 SS |
1710 | non_inherit = |
1711 | cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, | |
5023b14c SS |
1712 | nontransmitted_profile, |
1713 | nontransmitted_profile_len); | |
1714 | } | |
671042a4 | 1715 | |
fd17bf04 | 1716 | elems->crc = _ieee802_11_parse_elems_full(params, elems, non_inherit); |
78ac51f8 SS |
1717 | |
1718 | /* Override with nontransmitted profile, if found */ | |
fd17bf04 JB |
1719 | if (nontransmitted_profile_len) { |
1720 | struct ieee80211_elems_parse_params sub = { | |
1721 | .start = nontransmitted_profile, | |
1722 | .len = nontransmitted_profile_len, | |
1723 | .action = params->action, | |
425f4b5f | 1724 | .link_id = params->link_id, |
fd17bf04 JB |
1725 | }; |
1726 | ||
1727 | _ieee802_11_parse_elems_full(&sub, elems, NULL); | |
1728 | } | |
78ac51f8 | 1729 | |
45ebac4f IP |
1730 | ieee80211_mle_parse_link(elems, params); |
1731 | ||
78ac51f8 SS |
1732 | if (elems->tim && !elems->parse_error) { |
1733 | const struct ieee80211_tim_ie *tim_ie = elems->tim; | |
1734 | ||
1735 | elems->dtim_period = tim_ie->dtim_period; | |
1736 | elems->dtim_count = tim_ie->dtim_count; | |
1737 | } | |
1738 | ||
1739 | /* Override DTIM period and count if needed */ | |
1740 | if (elems->bssid_index && | |
1741 | elems->bssid_index_len >= | |
1742 | offsetofend(struct ieee80211_bssid_index, dtim_period)) | |
1743 | elems->dtim_period = elems->bssid_index->dtim_period; | |
1744 | ||
1745 | if (elems->bssid_index && | |
1746 | elems->bssid_index_len >= | |
1747 | offsetofend(struct ieee80211_bssid_index, dtim_count)) | |
1748 | elems->dtim_count = elems->bssid_index->dtim_count; | |
1749 | ||
5023b14c SS |
1750 | kfree(nontransmitted_profile); |
1751 | ||
5d24828d | 1752 | return elems; |
78ac51f8 SS |
1753 | } |
1754 | ||
e552af05 HD |
1755 | void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, |
1756 | struct ieee80211_tx_queue_params | |
1757 | *qparam, int ac) | |
1758 | { | |
1759 | struct ieee80211_chanctx_conf *chanctx_conf; | |
1760 | const struct ieee80211_reg_rule *rrule; | |
38cb87ee | 1761 | const struct ieee80211_wmm_ac *wmm_ac; |
e552af05 HD |
1762 | u16 center_freq = 0; |
1763 | ||
1764 | if (sdata->vif.type != NL80211_IFTYPE_AP && | |
1765 | sdata->vif.type != NL80211_IFTYPE_STATION) | |
1766 | return; | |
1767 | ||
1768 | rcu_read_lock(); | |
d0a9123e | 1769 | chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf); |
e552af05 HD |
1770 | if (chanctx_conf) |
1771 | center_freq = chanctx_conf->def.chan->center_freq; | |
1772 | ||
1773 | if (!center_freq) { | |
1774 | rcu_read_unlock(); | |
1775 | return; | |
1776 | } | |
1777 | ||
1778 | rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq)); | |
1779 | ||
38cb87ee | 1780 | if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) { |
e552af05 HD |
1781 | rcu_read_unlock(); |
1782 | return; | |
1783 | } | |
1784 | ||
1785 | if (sdata->vif.type == NL80211_IFTYPE_AP) | |
38cb87ee | 1786 | wmm_ac = &rrule->wmm_rule.ap[ac]; |
e552af05 | 1787 | else |
38cb87ee | 1788 | wmm_ac = &rrule->wmm_rule.client[ac]; |
e552af05 HD |
1789 | qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min); |
1790 | qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max); | |
1791 | qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn); | |
abd76d25 | 1792 | qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32); |
e552af05 HD |
1793 | rcu_read_unlock(); |
1794 | } | |
1795 | ||
b3e2130b | 1796 | void ieee80211_set_wmm_default(struct ieee80211_link_data *link, |
cec66283 | 1797 | bool bss_notify, bool enable_qos) |
5825fe10 | 1798 | { |
b3e2130b | 1799 | struct ieee80211_sub_if_data *sdata = link->sdata; |
5825fe10 JB |
1800 | struct ieee80211_local *local = sdata->local; |
1801 | struct ieee80211_tx_queue_params qparam; | |
55de908a | 1802 | struct ieee80211_chanctx_conf *chanctx_conf; |
54bcbc69 | 1803 | int ac; |
cec66283 | 1804 | bool use_11b; |
239281f8 | 1805 | bool is_ocb; /* Use another EDCA parameters if dot11OCBActivated=true */ |
aa837e1d | 1806 | int aCWmin, aCWmax; |
5825fe10 JB |
1807 | |
1808 | if (!local->ops->conf_tx) | |
1809 | return; | |
1810 | ||
54bcbc69 JB |
1811 | if (local->hw.queues < IEEE80211_NUM_ACS) |
1812 | return; | |
1813 | ||
5825fe10 JB |
1814 | memset(&qparam, 0, sizeof(qparam)); |
1815 | ||
55de908a | 1816 | rcu_read_lock(); |
b3e2130b | 1817 | chanctx_conf = rcu_dereference(link->conf->chanctx_conf); |
55de908a | 1818 | use_11b = (chanctx_conf && |
57fbcce3 | 1819 | chanctx_conf->def.chan->band == NL80211_BAND_2GHZ) && |
39eac2de | 1820 | !link->operating_11g_mode; |
55de908a | 1821 | rcu_read_unlock(); |
5825fe10 | 1822 | |
239281f8 RL |
1823 | is_ocb = (sdata->vif.type == NL80211_IFTYPE_OCB); |
1824 | ||
1f4ffde8 FZ |
1825 | /* Set defaults according to 802.11-2007 Table 7-37 */ |
1826 | aCWmax = 1023; | |
1827 | if (use_11b) | |
1828 | aCWmin = 31; | |
1829 | else | |
1830 | aCWmin = 15; | |
1831 | ||
1832 | /* Confiure old 802.11b/g medium access rules. */ | |
1833 | qparam.cw_max = aCWmax; | |
1834 | qparam.cw_min = aCWmin; | |
1835 | qparam.txop = 0; | |
1836 | qparam.aifs = 2; | |
aa837e1d | 1837 | |
1f4ffde8 FZ |
1838 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { |
1839 | /* Update if QoS is enabled. */ | |
a8ce8544 SG |
1840 | if (enable_qos) { |
1841 | switch (ac) { | |
1842 | case IEEE80211_AC_BK: | |
1843 | qparam.cw_max = aCWmax; | |
1844 | qparam.cw_min = aCWmin; | |
1845 | qparam.txop = 0; | |
239281f8 RL |
1846 | if (is_ocb) |
1847 | qparam.aifs = 9; | |
1848 | else | |
1849 | qparam.aifs = 7; | |
a8ce8544 SG |
1850 | break; |
1851 | /* never happens but let's not leave undefined */ | |
1852 | default: | |
1853 | case IEEE80211_AC_BE: | |
1854 | qparam.cw_max = aCWmax; | |
1855 | qparam.cw_min = aCWmin; | |
1856 | qparam.txop = 0; | |
239281f8 RL |
1857 | if (is_ocb) |
1858 | qparam.aifs = 6; | |
1859 | else | |
1860 | qparam.aifs = 3; | |
a8ce8544 SG |
1861 | break; |
1862 | case IEEE80211_AC_VI: | |
1863 | qparam.cw_max = aCWmin; | |
1864 | qparam.cw_min = (aCWmin + 1) / 2 - 1; | |
239281f8 RL |
1865 | if (is_ocb) |
1866 | qparam.txop = 0; | |
1867 | else if (use_11b) | |
a8ce8544 SG |
1868 | qparam.txop = 6016/32; |
1869 | else | |
1870 | qparam.txop = 3008/32; | |
239281f8 RL |
1871 | |
1872 | if (is_ocb) | |
1873 | qparam.aifs = 3; | |
1874 | else | |
1875 | qparam.aifs = 2; | |
a8ce8544 SG |
1876 | break; |
1877 | case IEEE80211_AC_VO: | |
1878 | qparam.cw_max = (aCWmin + 1) / 2 - 1; | |
1879 | qparam.cw_min = (aCWmin + 1) / 4 - 1; | |
239281f8 RL |
1880 | if (is_ocb) |
1881 | qparam.txop = 0; | |
1882 | else if (use_11b) | |
a8ce8544 SG |
1883 | qparam.txop = 3264/32; |
1884 | else | |
1885 | qparam.txop = 1504/32; | |
1886 | qparam.aifs = 2; | |
1887 | break; | |
1888 | } | |
aa837e1d | 1889 | } |
e552af05 | 1890 | ieee80211_regulatory_limit_wmm_params(sdata, &qparam, ac); |
5825fe10 | 1891 | |
ab13315a KV |
1892 | qparam.uapsd = false; |
1893 | ||
b3e2130b JB |
1894 | link->tx_conf[ac] = qparam; |
1895 | drv_conf_tx(local, link, ac, &qparam); | |
aa837e1d | 1896 | } |
e1b3ec1a | 1897 | |
f142c6b9 | 1898 | if (sdata->vif.type != NL80211_IFTYPE_MONITOR && |
708d50ed AB |
1899 | sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE && |
1900 | sdata->vif.type != NL80211_IFTYPE_NAN) { | |
b3e2130b | 1901 | link->conf->qos = enable_qos; |
3abead59 | 1902 | if (bss_notify) |
b3e2130b | 1903 | ieee80211_link_info_change_notify(sdata, link, |
7b7090b4 | 1904 | BSS_CHANGED_QOS); |
d9734979 | 1905 | } |
5825fe10 | 1906 | } |
e50db65c | 1907 | |
46900298 | 1908 | void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, |
700e8ea6 | 1909 | u16 transaction, u16 auth_alg, u16 status, |
4a3cb702 | 1910 | const u8 *extra, size_t extra_len, const u8 *da, |
1672c0e3 JB |
1911 | const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx, |
1912 | u32 tx_flags) | |
46900298 JB |
1913 | { |
1914 | struct ieee80211_local *local = sdata->local; | |
1915 | struct sk_buff *skb; | |
1916 | struct ieee80211_mgmt *mgmt; | |
8ec9a96b JB |
1917 | bool multi_link = sdata->vif.valid_links; |
1918 | struct { | |
1919 | u8 id; | |
1920 | u8 len; | |
1921 | u8 ext_id; | |
1922 | struct ieee80211_multi_link_elem ml; | |
1923 | struct ieee80211_mle_basic_common_info basic; | |
1924 | } __packed mle = { | |
1925 | .id = WLAN_EID_EXTENSION, | |
1926 | .len = sizeof(mle) - 2, | |
1927 | .ext_id = WLAN_EID_EXT_EHT_MULTI_LINK, | |
1928 | .ml.control = cpu_to_le16(IEEE80211_ML_CONTROL_TYPE_BASIC), | |
1929 | .basic.len = sizeof(mle.basic), | |
1930 | }; | |
fffd0934 | 1931 | int err; |
46900298 | 1932 | |
8ec9a96b JB |
1933 | memcpy(mle.basic.mld_mac_addr, sdata->vif.addr, ETH_ALEN); |
1934 | ||
15e230ab | 1935 | /* 24 + 6 = header + auth_algo + auth_transaction + status_code */ |
744462a9 | 1936 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN + |
8ec9a96b JB |
1937 | 24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN + |
1938 | multi_link * sizeof(mle)); | |
d15b8459 | 1939 | if (!skb) |
46900298 | 1940 | return; |
d15b8459 | 1941 | |
744462a9 | 1942 | skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN); |
46900298 | 1943 | |
b080db58 | 1944 | mgmt = skb_put_zero(skb, 24 + 6); |
46900298 JB |
1945 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
1946 | IEEE80211_STYPE_AUTH); | |
efa6a09d | 1947 | memcpy(mgmt->da, da, ETH_ALEN); |
47846c9b | 1948 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); |
46900298 JB |
1949 | memcpy(mgmt->bssid, bssid, ETH_ALEN); |
1950 | mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg); | |
1951 | mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); | |
700e8ea6 | 1952 | mgmt->u.auth.status_code = cpu_to_le16(status); |
46900298 | 1953 | if (extra) |
59ae1d12 | 1954 | skb_put_data(skb, extra, extra_len); |
8ec9a96b JB |
1955 | if (multi_link) |
1956 | skb_put_data(skb, &mle, sizeof(mle)); | |
46900298 | 1957 | |
fffd0934 JB |
1958 | if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) { |
1959 | mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); | |
1960 | err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx); | |
7d7b0075 JB |
1961 | if (WARN_ON(err)) { |
1962 | kfree_skb(skb); | |
1963 | return; | |
1964 | } | |
fffd0934 JB |
1965 | } |
1966 | ||
1672c0e3 JB |
1967 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | |
1968 | tx_flags; | |
62ae67be | 1969 | ieee80211_tx_skb(sdata, skb); |
46900298 JB |
1970 | } |
1971 | ||
6ae16775 | 1972 | void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, |
4b08d1b6 JB |
1973 | const u8 *da, const u8 *bssid, |
1974 | u16 stype, u16 reason, | |
6ae16775 AQ |
1975 | bool send_frame, u8 *frame_buf) |
1976 | { | |
1977 | struct ieee80211_local *local = sdata->local; | |
1978 | struct sk_buff *skb; | |
1979 | struct ieee80211_mgmt *mgmt = (void *)frame_buf; | |
1980 | ||
1981 | /* build frame */ | |
1982 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); | |
1983 | mgmt->duration = 0; /* initialize only */ | |
1984 | mgmt->seq_ctrl = 0; /* initialize only */ | |
4b08d1b6 | 1985 | memcpy(mgmt->da, da, ETH_ALEN); |
6ae16775 AQ |
1986 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); |
1987 | memcpy(mgmt->bssid, bssid, ETH_ALEN); | |
1988 | /* u.deauth.reason_code == u.disassoc.reason_code */ | |
1989 | mgmt->u.deauth.reason_code = cpu_to_le16(reason); | |
1990 | ||
1991 | if (send_frame) { | |
1992 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + | |
1993 | IEEE80211_DEAUTH_FRAME_LEN); | |
1994 | if (!skb) | |
1995 | return; | |
1996 | ||
1997 | skb_reserve(skb, local->hw.extra_tx_headroom); | |
1998 | ||
1999 | /* copy in frame */ | |
59ae1d12 | 2000 | skb_put_data(skb, mgmt, IEEE80211_DEAUTH_FRAME_LEN); |
6ae16775 AQ |
2001 | |
2002 | if (sdata->vif.type != NL80211_IFTYPE_STATION || | |
2003 | !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED)) | |
2004 | IEEE80211_SKB_CB(skb)->flags |= | |
2005 | IEEE80211_TX_INTFL_DONT_ENCRYPT; | |
2006 | ||
2007 | ieee80211_tx_skb(sdata, skb); | |
2008 | } | |
2009 | } | |
2010 | ||
2ad2274c IP |
2011 | static u8 *ieee80211_write_he_6ghz_cap(u8 *pos, __le16 cap, u8 *end) |
2012 | { | |
2013 | if ((end - pos) < 5) | |
2014 | return pos; | |
2015 | ||
2016 | *pos++ = WLAN_EID_EXTENSION; | |
2017 | *pos++ = 1 + sizeof(cap); | |
2018 | *pos++ = WLAN_EID_EXT_HE_6GHZ_CAPA; | |
2019 | memcpy(pos, &cap, sizeof(cap)); | |
2020 | ||
2021 | return pos + 2; | |
2022 | } | |
2023 | ||
2024 | static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata, | |
c56ef672 DS |
2025 | u8 *buffer, size_t buffer_len, |
2026 | const u8 *ie, size_t ie_len, | |
57fbcce3 | 2027 | enum nl80211_band band, |
c56ef672 DS |
2028 | u32 rate_mask, |
2029 | struct cfg80211_chan_def *chandef, | |
00387f32 | 2030 | size_t *offset, u32 flags) |
de95a54b | 2031 | { |
2ad2274c | 2032 | struct ieee80211_local *local = sdata->local; |
de95a54b | 2033 | struct ieee80211_supported_band *sband; |
41cbb0f5 | 2034 | const struct ieee80211_sta_he_cap *he_cap; |
820acc81 | 2035 | const struct ieee80211_sta_eht_cap *eht_cap; |
c604b9f2 | 2036 | u8 *pos = buffer, *end = buffer + buffer_len; |
c56ef672 | 2037 | size_t noffset; |
8e664fb3 | 2038 | int supp_rates_len, i; |
8dcb2003 JM |
2039 | u8 rates[32]; |
2040 | int num_rates; | |
2041 | int ext_rates_len; | |
2103dec1 SW |
2042 | int shift; |
2043 | u32 rate_flags; | |
40a11ca8 | 2044 | bool have_80mhz = false; |
de95a54b | 2045 | |
c56ef672 DS |
2046 | *offset = 0; |
2047 | ||
4d36ec58 | 2048 | sband = local->hw.wiphy->bands[band]; |
d811b3d5 AN |
2049 | if (WARN_ON_ONCE(!sband)) |
2050 | return 0; | |
de95a54b | 2051 | |
2103dec1 SW |
2052 | rate_flags = ieee80211_chandef_rate_flags(chandef); |
2053 | shift = ieee80211_chandef_get_shift(chandef); | |
2054 | ||
8dcb2003 JM |
2055 | num_rates = 0; |
2056 | for (i = 0; i < sband->n_bitrates; i++) { | |
2057 | if ((BIT(i) & rate_mask) == 0) | |
2058 | continue; /* skip rate */ | |
2103dec1 SW |
2059 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) |
2060 | continue; | |
2061 | ||
2062 | rates[num_rates++] = | |
2063 | (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, | |
2064 | (1 << shift) * 5); | |
8dcb2003 JM |
2065 | } |
2066 | ||
2067 | supp_rates_len = min_t(int, num_rates, 8); | |
8e664fb3 | 2068 | |
c604b9f2 JB |
2069 | if (end - pos < 2 + supp_rates_len) |
2070 | goto out_err; | |
de95a54b | 2071 | *pos++ = WLAN_EID_SUPP_RATES; |
8e664fb3 | 2072 | *pos++ = supp_rates_len; |
8dcb2003 JM |
2073 | memcpy(pos, rates, supp_rates_len); |
2074 | pos += supp_rates_len; | |
8e664fb3 JB |
2075 | |
2076 | /* insert "request information" if in custom IEs */ | |
2077 | if (ie && ie_len) { | |
2078 | static const u8 before_extrates[] = { | |
2079 | WLAN_EID_SSID, | |
2080 | WLAN_EID_SUPP_RATES, | |
2081 | WLAN_EID_REQUEST, | |
2082 | }; | |
2083 | noffset = ieee80211_ie_split(ie, ie_len, | |
2084 | before_extrates, | |
2085 | ARRAY_SIZE(before_extrates), | |
c56ef672 DS |
2086 | *offset); |
2087 | if (end - pos < noffset - *offset) | |
c604b9f2 | 2088 | goto out_err; |
c56ef672 DS |
2089 | memcpy(pos, ie + *offset, noffset - *offset); |
2090 | pos += noffset - *offset; | |
2091 | *offset = noffset; | |
8e664fb3 JB |
2092 | } |
2093 | ||
8dcb2003 JM |
2094 | ext_rates_len = num_rates - supp_rates_len; |
2095 | if (ext_rates_len > 0) { | |
c604b9f2 JB |
2096 | if (end - pos < 2 + ext_rates_len) |
2097 | goto out_err; | |
8e664fb3 | 2098 | *pos++ = WLAN_EID_EXT_SUPP_RATES; |
8dcb2003 JM |
2099 | *pos++ = ext_rates_len; |
2100 | memcpy(pos, rates + supp_rates_len, ext_rates_len); | |
2101 | pos += ext_rates_len; | |
8e664fb3 JB |
2102 | } |
2103 | ||
57fbcce3 | 2104 | if (chandef->chan && sband->band == NL80211_BAND_2GHZ) { |
c604b9f2 JB |
2105 | if (end - pos < 3) |
2106 | goto out_err; | |
651b5225 JM |
2107 | *pos++ = WLAN_EID_DS_PARAMS; |
2108 | *pos++ = 1; | |
2103dec1 SW |
2109 | *pos++ = ieee80211_frequency_to_channel( |
2110 | chandef->chan->center_freq); | |
651b5225 JM |
2111 | } |
2112 | ||
b9771d41 JB |
2113 | if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT) |
2114 | goto done; | |
2115 | ||
8e664fb3 JB |
2116 | /* insert custom IEs that go before HT */ |
2117 | if (ie && ie_len) { | |
2118 | static const u8 before_ht[] = { | |
a7f26d80 JB |
2119 | /* |
2120 | * no need to list the ones split off already | |
2121 | * (or generated here) | |
2122 | */ | |
8e664fb3 JB |
2123 | WLAN_EID_DS_PARAMS, |
2124 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, | |
2125 | }; | |
2126 | noffset = ieee80211_ie_split(ie, ie_len, | |
2127 | before_ht, ARRAY_SIZE(before_ht), | |
c56ef672 DS |
2128 | *offset); |
2129 | if (end - pos < noffset - *offset) | |
c604b9f2 | 2130 | goto out_err; |
c56ef672 DS |
2131 | memcpy(pos, ie + *offset, noffset - *offset); |
2132 | pos += noffset - *offset; | |
2133 | *offset = noffset; | |
de95a54b JB |
2134 | } |
2135 | ||
c604b9f2 JB |
2136 | if (sband->ht_cap.ht_supported) { |
2137 | if (end - pos < 2 + sizeof(struct ieee80211_ht_cap)) | |
2138 | goto out_err; | |
ef96a842 BG |
2139 | pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, |
2140 | sband->ht_cap.cap); | |
c604b9f2 | 2141 | } |
5ef2d41a | 2142 | |
4d952300 | 2143 | /* insert custom IEs that go before VHT */ |
8e664fb3 | 2144 | if (ie && ie_len) { |
4d952300 | 2145 | static const u8 before_vht[] = { |
a7f26d80 JB |
2146 | /* |
2147 | * no need to list the ones split off already | |
2148 | * (or generated here) | |
2149 | */ | |
4d952300 JB |
2150 | WLAN_EID_BSS_COEX_2040, |
2151 | WLAN_EID_EXT_CAPABILITY, | |
2152 | WLAN_EID_SSID_LIST, | |
2153 | WLAN_EID_CHANNEL_USAGE, | |
2154 | WLAN_EID_INTERWORKING, | |
b44eebea | 2155 | WLAN_EID_MESH_ID, |
a7f26d80 | 2156 | /* 60 GHz (Multi-band, DMG, MMS) can't happen */ |
4d952300 JB |
2157 | }; |
2158 | noffset = ieee80211_ie_split(ie, ie_len, | |
2159 | before_vht, ARRAY_SIZE(before_vht), | |
c56ef672 DS |
2160 | *offset); |
2161 | if (end - pos < noffset - *offset) | |
c604b9f2 | 2162 | goto out_err; |
c56ef672 DS |
2163 | memcpy(pos, ie + *offset, noffset - *offset); |
2164 | pos += noffset - *offset; | |
2165 | *offset = noffset; | |
de95a54b JB |
2166 | } |
2167 | ||
40a11ca8 JB |
2168 | /* Check if any channel in this sband supports at least 80 MHz */ |
2169 | for (i = 0; i < sband->n_channels; i++) { | |
fa44b988 AN |
2170 | if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | |
2171 | IEEE80211_CHAN_NO_80MHZ)) | |
2172 | continue; | |
2173 | ||
2174 | have_80mhz = true; | |
2175 | break; | |
40a11ca8 JB |
2176 | } |
2177 | ||
2178 | if (sband->vht_cap.vht_supported && have_80mhz) { | |
c604b9f2 JB |
2179 | if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) |
2180 | goto out_err; | |
ba0afa2f MP |
2181 | pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, |
2182 | sband->vht_cap.cap); | |
c604b9f2 | 2183 | } |
ba0afa2f | 2184 | |
41cbb0f5 LC |
2185 | /* insert custom IEs that go before HE */ |
2186 | if (ie && ie_len) { | |
2187 | static const u8 before_he[] = { | |
2188 | /* | |
2189 | * no need to list the ones split off before VHT | |
2190 | * or generated here | |
2191 | */ | |
2192 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS, | |
2193 | WLAN_EID_AP_CSN, | |
2194 | /* TODO: add 11ah/11aj/11ak elements */ | |
2195 | }; | |
2196 | noffset = ieee80211_ie_split(ie, ie_len, | |
2197 | before_he, ARRAY_SIZE(before_he), | |
2198 | *offset); | |
2199 | if (end - pos < noffset - *offset) | |
2200 | goto out_err; | |
2201 | memcpy(pos, ie + *offset, noffset - *offset); | |
2202 | pos += noffset - *offset; | |
2203 | *offset = noffset; | |
2204 | } | |
2205 | ||
bac2fd3d JB |
2206 | he_cap = ieee80211_get_he_iftype_cap(sband, |
2207 | ieee80211_vif_type_p2p(&sdata->vif)); | |
0bc47057 JB |
2208 | if (he_cap && |
2209 | cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band), | |
2210 | IEEE80211_CHAN_NO_HE)) { | |
1f2c1044 | 2211 | pos = ieee80211_ie_build_he_cap(0, pos, he_cap, end); |
41cbb0f5 LC |
2212 | if (!pos) |
2213 | goto out_err; | |
7d29bc50 JB |
2214 | } |
2215 | ||
820acc81 IP |
2216 | eht_cap = ieee80211_get_eht_iftype_cap(sband, |
2217 | ieee80211_vif_type_p2p(&sdata->vif)); | |
2218 | ||
2219 | if (eht_cap && | |
2220 | cfg80211_any_usable_channels(local->hw.wiphy, BIT(sband->band), | |
2221 | IEEE80211_CHAN_NO_HE | | |
2222 | IEEE80211_CHAN_NO_EHT)) { | |
ea5cba26 JB |
2223 | pos = ieee80211_ie_build_eht_cap(pos, he_cap, eht_cap, end, |
2224 | sdata->vif.type == NL80211_IFTYPE_AP); | |
820acc81 IP |
2225 | if (!pos) |
2226 | goto out_err; | |
2227 | } | |
2228 | ||
7d29bc50 JB |
2229 | if (cfg80211_any_usable_channels(local->hw.wiphy, |
2230 | BIT(NL80211_BAND_6GHZ), | |
2231 | IEEE80211_CHAN_NO_HE)) { | |
2232 | struct ieee80211_supported_band *sband6; | |
2233 | ||
2234 | sband6 = local->hw.wiphy->bands[NL80211_BAND_6GHZ]; | |
2235 | he_cap = ieee80211_get_he_iftype_cap(sband6, | |
2236 | ieee80211_vif_type_p2p(&sdata->vif)); | |
2ad2274c | 2237 | |
7d29bc50 | 2238 | if (he_cap) { |
2ad2274c IP |
2239 | enum nl80211_iftype iftype = |
2240 | ieee80211_vif_type_p2p(&sdata->vif); | |
2241 | __le16 cap = ieee80211_get_he_6ghz_capa(sband, iftype); | |
2242 | ||
2243 | pos = ieee80211_write_he_6ghz_cap(pos, cap, end); | |
2244 | } | |
41cbb0f5 LC |
2245 | } |
2246 | ||
2247 | /* | |
2248 | * If adding more here, adjust code in main.c | |
2249 | * that calculates local->scan_ies_len. | |
2250 | */ | |
2251 | ||
c604b9f2 JB |
2252 | return pos - buffer; |
2253 | out_err: | |
2254 | WARN_ONCE(1, "not enough space for preq IEs\n"); | |
b9771d41 | 2255 | done: |
de95a54b JB |
2256 | return pos - buffer; |
2257 | } | |
2258 | ||
2ad2274c | 2259 | int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, |
c56ef672 DS |
2260 | size_t buffer_len, |
2261 | struct ieee80211_scan_ies *ie_desc, | |
2262 | const u8 *ie, size_t ie_len, | |
2263 | u8 bands_used, u32 *rate_masks, | |
00387f32 JB |
2264 | struct cfg80211_chan_def *chandef, |
2265 | u32 flags) | |
c56ef672 DS |
2266 | { |
2267 | size_t pos = 0, old_pos = 0, custom_ie_offset = 0; | |
2268 | int i; | |
2269 | ||
2270 | memset(ie_desc, 0, sizeof(*ie_desc)); | |
2271 | ||
57fbcce3 | 2272 | for (i = 0; i < NUM_NL80211_BANDS; i++) { |
c56ef672 | 2273 | if (bands_used & BIT(i)) { |
2ad2274c | 2274 | pos += ieee80211_build_preq_ies_band(sdata, |
c56ef672 DS |
2275 | buffer + pos, |
2276 | buffer_len - pos, | |
2277 | ie, ie_len, i, | |
2278 | rate_masks[i], | |
2279 | chandef, | |
00387f32 JB |
2280 | &custom_ie_offset, |
2281 | flags); | |
c56ef672 DS |
2282 | ie_desc->ies[i] = buffer + old_pos; |
2283 | ie_desc->len[i] = pos - old_pos; | |
2284 | old_pos = pos; | |
2285 | } | |
2286 | } | |
2287 | ||
2288 | /* add any remaining custom IEs */ | |
2289 | if (ie && ie_len) { | |
2290 | if (WARN_ONCE(buffer_len - pos < ie_len - custom_ie_offset, | |
2291 | "not enough space for preq custom IEs\n")) | |
2292 | return pos; | |
2293 | memcpy(buffer + pos, ie + custom_ie_offset, | |
2294 | ie_len - custom_ie_offset); | |
2295 | ie_desc->common_ies = buffer + pos; | |
2296 | ie_desc->common_ie_len = ie_len - custom_ie_offset; | |
2297 | pos += ie_len - custom_ie_offset; | |
2298 | } | |
2299 | ||
2300 | return pos; | |
2301 | }; | |
2302 | ||
a619a4c0 | 2303 | struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, |
a344d677 JB |
2304 | const u8 *src, const u8 *dst, |
2305 | u32 ratemask, | |
6b77863b | 2306 | struct ieee80211_channel *chan, |
a619a4c0 | 2307 | const u8 *ssid, size_t ssid_len, |
a806c558 | 2308 | const u8 *ie, size_t ie_len, |
00387f32 | 2309 | u32 flags) |
46900298 JB |
2310 | { |
2311 | struct ieee80211_local *local = sdata->local; | |
2103dec1 | 2312 | struct cfg80211_chan_def chandef; |
46900298 JB |
2313 | struct sk_buff *skb; |
2314 | struct ieee80211_mgmt *mgmt; | |
b9a9ada1 | 2315 | int ies_len; |
57fbcce3 | 2316 | u32 rate_masks[NUM_NL80211_BANDS] = {}; |
c56ef672 | 2317 | struct ieee80211_scan_ies dummy_ie_desc; |
46900298 | 2318 | |
a806c558 PS |
2319 | /* |
2320 | * Do not send DS Channel parameter for directed probe requests | |
2321 | * in order to maximize the chance that we get a response. Some | |
2322 | * badly-behaved APs don't respond when this parameter is included. | |
2323 | */ | |
2103dec1 | 2324 | chandef.width = sdata->vif.bss_conf.chandef.width; |
00387f32 | 2325 | if (flags & IEEE80211_PROBE_FLAG_DIRECTED) |
2103dec1 | 2326 | chandef.chan = NULL; |
a806c558 | 2327 | else |
2103dec1 | 2328 | chandef.chan = chan; |
651b5225 | 2329 | |
a344d677 | 2330 | skb = ieee80211_probereq_get(&local->hw, src, ssid, ssid_len, |
f22d9813 | 2331 | local->scan_ies_len + ie_len); |
5b2bbf75 | 2332 | if (!skb) |
b9a9ada1 JB |
2333 | return NULL; |
2334 | ||
c56ef672 | 2335 | rate_masks[chan->band] = ratemask; |
2ad2274c | 2336 | ies_len = ieee80211_build_preq_ies(sdata, skb_tail_pointer(skb), |
c56ef672 DS |
2337 | skb_tailroom(skb), &dummy_ie_desc, |
2338 | ie, ie_len, BIT(chan->band), | |
00387f32 | 2339 | rate_masks, &chandef, flags); |
b9a9ada1 | 2340 | skb_put(skb, ies_len); |
7c12ce8b | 2341 | |
46900298 | 2342 | if (dst) { |
7c12ce8b | 2343 | mgmt = (struct ieee80211_mgmt *) skb->data; |
46900298 JB |
2344 | memcpy(mgmt->da, dst, ETH_ALEN); |
2345 | memcpy(mgmt->bssid, dst, ETH_ALEN); | |
46900298 | 2346 | } |
46900298 | 2347 | |
62ae67be | 2348 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; |
5b2bbf75 | 2349 | |
a619a4c0 JO |
2350 | return skb; |
2351 | } | |
2352 | ||
2103dec1 | 2353 | u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, |
46900298 | 2354 | struct ieee802_11_elems *elems, |
57fbcce3 | 2355 | enum nl80211_band band, u32 *basic_rates) |
46900298 JB |
2356 | { |
2357 | struct ieee80211_supported_band *sband; | |
46900298 | 2358 | size_t num_rates; |
2103dec1 SW |
2359 | u32 supp_rates, rate_flags; |
2360 | int i, j, shift; | |
21a8e9dd | 2361 | |
2103dec1 | 2362 | sband = sdata->local->hw.wiphy->bands[band]; |
21a8e9dd MSS |
2363 | if (WARN_ON(!sband)) |
2364 | return 1; | |
2103dec1 SW |
2365 | |
2366 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
2367 | shift = ieee80211_vif_get_shift(&sdata->vif); | |
46900298 | 2368 | |
46900298 JB |
2369 | num_rates = sband->n_bitrates; |
2370 | supp_rates = 0; | |
2371 | for (i = 0; i < elems->supp_rates_len + | |
2372 | elems->ext_supp_rates_len; i++) { | |
2373 | u8 rate = 0; | |
2374 | int own_rate; | |
9ebb61a2 | 2375 | bool is_basic; |
46900298 JB |
2376 | if (i < elems->supp_rates_len) |
2377 | rate = elems->supp_rates[i]; | |
2378 | else if (elems->ext_supp_rates) | |
2379 | rate = elems->ext_supp_rates | |
2380 | [i - elems->supp_rates_len]; | |
2381 | own_rate = 5 * (rate & 0x7f); | |
9ebb61a2 AN |
2382 | is_basic = !!(rate & 0x80); |
2383 | ||
2384 | if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY) | |
2385 | continue; | |
2386 | ||
2387 | for (j = 0; j < num_rates; j++) { | |
2103dec1 SW |
2388 | int brate; |
2389 | if ((rate_flags & sband->bitrates[j].flags) | |
2390 | != rate_flags) | |
2391 | continue; | |
2392 | ||
2393 | brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, | |
2394 | 1 << shift); | |
2395 | ||
2396 | if (brate == own_rate) { | |
46900298 | 2397 | supp_rates |= BIT(j); |
9ebb61a2 AN |
2398 | if (basic_rates && is_basic) |
2399 | *basic_rates |= BIT(j); | |
2400 | } | |
2401 | } | |
46900298 JB |
2402 | } |
2403 | return supp_rates; | |
2404 | } | |
f2753ddb | 2405 | |
84f6a01c JB |
2406 | void ieee80211_stop_device(struct ieee80211_local *local) |
2407 | { | |
2408 | ieee80211_led_radio(local, false); | |
67408c8c | 2409 | ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO); |
84f6a01c JB |
2410 | |
2411 | cancel_work_sync(&local->reconfig_filter); | |
84f6a01c JB |
2412 | |
2413 | flush_workqueue(local->workqueue); | |
678f415f | 2414 | drv_stop(local); |
84f6a01c JB |
2415 | } |
2416 | ||
74430f94 JB |
2417 | static void ieee80211_flush_completed_scan(struct ieee80211_local *local, |
2418 | bool aborted) | |
2419 | { | |
2420 | /* It's possible that we don't handle the scan completion in | |
2421 | * time during suspend, so if it's still marked as completed | |
2422 | * here, queue the work and flush it to clean things up. | |
2423 | * Instead of calling the worker function directly here, we | |
2424 | * really queue it to avoid potential races with other flows | |
2425 | * scheduling the same work. | |
2426 | */ | |
2427 | if (test_bit(SCAN_COMPLETED, &local->scanning)) { | |
2428 | /* If coming from reconfiguration failure, abort the scan so | |
2429 | * we don't attempt to continue a partial HW scan - which is | |
2430 | * possible otherwise if (e.g.) the 2.4 GHz portion was the | |
2431 | * completed scan, and a 5 GHz portion is still pending. | |
2432 | */ | |
2433 | if (aborted) | |
2434 | set_bit(SCAN_ABORTED, &local->scanning); | |
2435 | ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); | |
2436 | flush_delayed_work(&local->scan_work); | |
2437 | } | |
2438 | } | |
2439 | ||
f6837ba8 JB |
2440 | static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) |
2441 | { | |
2442 | struct ieee80211_sub_if_data *sdata; | |
2443 | struct ieee80211_chanctx *ctx; | |
2444 | ||
2445 | /* | |
2446 | * We get here if during resume the device can't be restarted properly. | |
2447 | * We might also get here if this happens during HW reset, which is a | |
2448 | * slightly different situation and we need to drop all connections in | |
2449 | * the latter case. | |
2450 | * | |
2451 | * Ask cfg80211 to turn off all interfaces, this will result in more | |
2452 | * warnings but at least we'll then get into a clean stopped state. | |
2453 | */ | |
2454 | ||
2455 | local->resuming = false; | |
2456 | local->suspended = false; | |
7584f88f | 2457 | local->in_reconfig = false; |
f6837ba8 | 2458 | |
74430f94 JB |
2459 | ieee80211_flush_completed_scan(local, true); |
2460 | ||
f6837ba8 JB |
2461 | /* scheduled scan clearly can't be running any more, but tell |
2462 | * cfg80211 and clear local state | |
2463 | */ | |
2464 | ieee80211_sched_scan_end(local); | |
2465 | ||
2466 | list_for_each_entry(sdata, &local->interfaces, list) | |
2467 | sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER; | |
2468 | ||
2469 | /* Mark channel contexts as not being in the driver any more to avoid | |
2470 | * removing them from the driver during the shutdown process... | |
2471 | */ | |
2472 | mutex_lock(&local->chanctx_mtx); | |
2473 | list_for_each_entry(ctx, &local->chanctx_list, list) | |
2474 | ctx->driver_present = false; | |
2475 | mutex_unlock(&local->chanctx_mtx); | |
f6837ba8 JB |
2476 | } |
2477 | ||
153a5fc4 | 2478 | static void ieee80211_assign_chanctx(struct ieee80211_local *local, |
b4f85443 | 2479 | struct ieee80211_sub_if_data *sdata, |
d8675a63 | 2480 | struct ieee80211_link_data *link) |
153a5fc4 SG |
2481 | { |
2482 | struct ieee80211_chanctx_conf *conf; | |
2483 | struct ieee80211_chanctx *ctx; | |
2484 | ||
2485 | if (!local->use_chanctx) | |
2486 | return; | |
2487 | ||
2488 | mutex_lock(&local->chanctx_mtx); | |
d8675a63 | 2489 | conf = rcu_dereference_protected(link->conf->chanctx_conf, |
153a5fc4 SG |
2490 | lockdep_is_held(&local->chanctx_mtx)); |
2491 | if (conf) { | |
2492 | ctx = container_of(conf, struct ieee80211_chanctx, conf); | |
727eff4d | 2493 | drv_assign_vif_chanctx(local, sdata, link->conf, ctx); |
153a5fc4 SG |
2494 | } |
2495 | mutex_unlock(&local->chanctx_mtx); | |
2496 | } | |
2497 | ||
1ea2c864 JB |
2498 | static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) |
2499 | { | |
2500 | struct ieee80211_local *local = sdata->local; | |
2501 | struct sta_info *sta; | |
2502 | ||
2503 | /* add STAs back */ | |
2504 | mutex_lock(&local->sta_mtx); | |
2505 | list_for_each_entry(sta, &local->sta_list, list) { | |
2506 | enum ieee80211_sta_state state; | |
2507 | ||
2508 | if (!sta->uploaded || sta->sdata != sdata) | |
2509 | continue; | |
2510 | ||
2511 | for (state = IEEE80211_STA_NOTEXIST; | |
2512 | state < sta->sta_state; state++) | |
2513 | WARN_ON(drv_sta_state(local, sta->sdata, sta, state, | |
2514 | state + 1)); | |
2515 | } | |
2516 | mutex_unlock(&local->sta_mtx); | |
2517 | } | |
2518 | ||
167e33f4 AB |
2519 | static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata) |
2520 | { | |
2521 | struct cfg80211_nan_func *func, **funcs; | |
2522 | int res, id, i = 0; | |
2523 | ||
2524 | res = drv_start_nan(sdata->local, sdata, | |
2525 | &sdata->u.nan.conf); | |
2526 | if (WARN_ON(res)) | |
2527 | return res; | |
2528 | ||
6396bb22 KC |
2529 | funcs = kcalloc(sdata->local->hw.max_nan_de_entries + 1, |
2530 | sizeof(*funcs), | |
2531 | GFP_KERNEL); | |
167e33f4 AB |
2532 | if (!funcs) |
2533 | return -ENOMEM; | |
2534 | ||
2535 | /* Add all the functions: | |
2536 | * This is a little bit ugly. We need to call a potentially sleeping | |
2537 | * callback for each NAN function, so we can't hold the spinlock. | |
2538 | */ | |
2539 | spin_lock_bh(&sdata->u.nan.func_lock); | |
2540 | ||
2541 | idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) | |
2542 | funcs[i++] = func; | |
2543 | ||
2544 | spin_unlock_bh(&sdata->u.nan.func_lock); | |
2545 | ||
2546 | for (i = 0; funcs[i]; i++) { | |
2547 | res = drv_add_nan_func(sdata->local, sdata, funcs[i]); | |
2548 | if (WARN_ON(res)) | |
2549 | ieee80211_nan_func_terminated(&sdata->vif, | |
2550 | funcs[i]->instance_id, | |
2551 | NL80211_NAN_FUNC_TERM_REASON_ERROR, | |
2552 | GFP_KERNEL); | |
2553 | } | |
2554 | ||
2555 | kfree(funcs); | |
2556 | ||
2557 | return 0; | |
2558 | } | |
2559 | ||
f2753ddb JB |
2560 | int ieee80211_reconfig(struct ieee80211_local *local) |
2561 | { | |
2562 | struct ieee80211_hw *hw = &local->hw; | |
2563 | struct ieee80211_sub_if_data *sdata; | |
55de908a | 2564 | struct ieee80211_chanctx *ctx; |
f2753ddb | 2565 | struct sta_info *sta; |
2683d65b | 2566 | int res, i; |
d888130a | 2567 | bool reconfig_due_to_wowlan = false; |
d43c6b6e | 2568 | struct ieee80211_sub_if_data *sched_scan_sdata; |
6ea0a69c | 2569 | struct cfg80211_sched_scan_request *sched_scan_req; |
d43c6b6e | 2570 | bool sched_scan_stopped = false; |
b0485e9f | 2571 | bool suspended = local->suspended; |
7d352ccf | 2572 | bool in_reconfig = false; |
d888130a | 2573 | |
0f8b8245 EP |
2574 | /* nothing to do if HW shouldn't run */ |
2575 | if (!local->open_count) | |
2576 | goto wake_up; | |
2577 | ||
8f21b0ad | 2578 | #ifdef CONFIG_PM |
b0485e9f | 2579 | if (suspended) |
ceb99fe0 | 2580 | local->resuming = true; |
f2753ddb | 2581 | |
eecc4800 | 2582 | if (local->wowlan) { |
b0485e9f EP |
2583 | /* |
2584 | * In the wowlan case, both mac80211 and the device | |
2585 | * are functional when the resume op is called, so | |
2586 | * clear local->suspended so the device could operate | |
2587 | * normally (e.g. pass rx frames). | |
2588 | */ | |
2589 | local->suspended = false; | |
eecc4800 | 2590 | res = drv_resume(local); |
27b3eb9c | 2591 | local->wowlan = false; |
eecc4800 JB |
2592 | if (res < 0) { |
2593 | local->resuming = false; | |
2594 | return res; | |
2595 | } | |
2596 | if (res == 0) | |
2597 | goto wake_up; | |
2598 | WARN_ON(res > 1); | |
2599 | /* | |
2600 | * res is 1, which means the driver requested | |
2601 | * to go through a regular reset on wakeup. | |
b0485e9f | 2602 | * restore local->suspended in this case. |
eecc4800 | 2603 | */ |
d888130a | 2604 | reconfig_due_to_wowlan = true; |
b0485e9f | 2605 | local->suspended = true; |
eecc4800 JB |
2606 | } |
2607 | #endif | |
f2753ddb | 2608 | |
43d6df00 EP |
2609 | /* |
2610 | * In case of hw_restart during suspend (without wowlan), | |
2611 | * cancel restart work, as we are reconfiguring the device | |
2612 | * anyway. | |
2613 | * Note that restart_work is scheduled on a frozen workqueue, | |
2614 | * so we can't deadlock in this case. | |
2615 | */ | |
2616 | if (suspended && local->in_reconfig && !reconfig_due_to_wowlan) | |
2617 | cancel_work_sync(&local->restart_work); | |
2618 | ||
968a76ce EP |
2619 | local->started = false; |
2620 | ||
94f9b97b JB |
2621 | /* |
2622 | * Upon resume hardware can sometimes be goofy due to | |
2623 | * various platform / driver / bus issues, so restarting | |
2624 | * the device may at times not work immediately. Propagate | |
2625 | * the error. | |
2626 | */ | |
2627 | res = drv_start(local); | |
2628 | if (res) { | |
b0485e9f | 2629 | if (suspended) |
f6837ba8 JB |
2630 | WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n"); |
2631 | else | |
2632 | WARN(1, "Hardware became unavailable during restart.\n"); | |
2633 | ieee80211_handle_reconfig_failure(local); | |
94f9b97b | 2634 | return res; |
f2753ddb JB |
2635 | } |
2636 | ||
7f281975 YAP |
2637 | /* setup fragmentation threshold */ |
2638 | drv_set_frag_threshold(local, hw->wiphy->frag_threshold); | |
2639 | ||
2640 | /* setup RTS threshold */ | |
2641 | drv_set_rts_threshold(local, hw->wiphy->rts_threshold); | |
2642 | ||
2643 | /* reset coverage class */ | |
2644 | drv_set_coverage_class(local, hw->wiphy->coverage_class); | |
2645 | ||
94f9b97b JB |
2646 | ieee80211_led_radio(local, true); |
2647 | ieee80211_mod_tpt_led_trig(local, | |
2648 | IEEE80211_TPT_LEDTRIG_FL_RADIO, 0); | |
2649 | ||
f2753ddb | 2650 | /* add interfaces */ |
6dd23603 | 2651 | sdata = wiphy_dereference(local->hw.wiphy, local->monitor_sdata); |
4b6f1dd6 | 2652 | if (sdata) { |
3c3e21e7 JB |
2653 | /* in HW restart it exists already */ |
2654 | WARN_ON(local->resuming); | |
4b6f1dd6 JB |
2655 | res = drv_add_interface(local, sdata); |
2656 | if (WARN_ON(res)) { | |
0c2bef46 | 2657 | RCU_INIT_POINTER(local->monitor_sdata, NULL); |
4b6f1dd6 JB |
2658 | synchronize_net(); |
2659 | kfree(sdata); | |
2660 | } | |
2661 | } | |
2662 | ||
f2753ddb JB |
2663 | list_for_each_entry(sdata, &local->interfaces, list) { |
2664 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && | |
2665 | sdata->vif.type != NL80211_IFTYPE_MONITOR && | |
c8fff3dc | 2666 | ieee80211_sdata_running(sdata)) { |
7b7eab6f | 2667 | res = drv_add_interface(local, sdata); |
c8fff3dc LC |
2668 | if (WARN_ON(res)) |
2669 | break; | |
2670 | } | |
2671 | } | |
2672 | ||
2673 | /* If adding any of the interfaces failed above, roll back and | |
2674 | * report failure. | |
2675 | */ | |
2676 | if (res) { | |
2677 | list_for_each_entry_continue_reverse(sdata, &local->interfaces, | |
2678 | list) | |
2679 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && | |
2680 | sdata->vif.type != NL80211_IFTYPE_MONITOR && | |
2681 | ieee80211_sdata_running(sdata)) | |
2682 | drv_remove_interface(local, sdata); | |
2683 | ieee80211_handle_reconfig_failure(local); | |
2684 | return res; | |
f2753ddb JB |
2685 | } |
2686 | ||
55de908a | 2687 | /* add channel contexts */ |
f0dea9c7 AS |
2688 | if (local->use_chanctx) { |
2689 | mutex_lock(&local->chanctx_mtx); | |
2690 | list_for_each_entry(ctx, &local->chanctx_list, list) | |
5bcae31d MK |
2691 | if (ctx->replace_state != |
2692 | IEEE80211_CHANCTX_REPLACES_OTHER) | |
2693 | WARN_ON(drv_add_chanctx(local, ctx)); | |
f0dea9c7 | 2694 | mutex_unlock(&local->chanctx_mtx); |
55de908a | 2695 | |
6dd23603 JB |
2696 | sdata = wiphy_dereference(local->hw.wiphy, |
2697 | local->monitor_sdata); | |
7df180f7 | 2698 | if (sdata && ieee80211_sdata_running(sdata)) |
d8675a63 | 2699 | ieee80211_assign_chanctx(local, sdata, &sdata->deflink); |
7df180f7 | 2700 | } |
fe5f2559 | 2701 | |
f2753ddb JB |
2702 | /* reconfigure hardware */ |
2703 | ieee80211_hw_config(local, ~0); | |
2704 | ||
f2753ddb | 2705 | ieee80211_configure_filter(local); |
f2753ddb JB |
2706 | |
2707 | /* Finally also reconfigure all the BSS information */ | |
2708 | list_for_each_entry(sdata, &local->interfaces, list) { | |
d8675a63 | 2709 | unsigned int link_id; |
ac8dd506 JB |
2710 | u32 changed; |
2711 | ||
9607e6b6 | 2712 | if (!ieee80211_sdata_running(sdata)) |
f2753ddb | 2713 | continue; |
ac8dd506 | 2714 | |
d8675a63 JB |
2715 | sdata_lock(sdata); |
2716 | for (link_id = 0; | |
2717 | link_id < ARRAY_SIZE(sdata->vif.link_conf); | |
2718 | link_id++) { | |
2719 | struct ieee80211_link_data *link; | |
2720 | ||
2721 | link = sdata_dereference(sdata->link[link_id], sdata); | |
2722 | if (link) | |
b4f85443 JB |
2723 | ieee80211_assign_chanctx(local, sdata, link); |
2724 | } | |
1ea2c864 JB |
2725 | |
2726 | switch (sdata->vif.type) { | |
2727 | case NL80211_IFTYPE_AP_VLAN: | |
2728 | case NL80211_IFTYPE_MONITOR: | |
2729 | break; | |
4926b51b | 2730 | case NL80211_IFTYPE_ADHOC: |
f276e20b | 2731 | if (sdata->vif.cfg.ibss_joined) |
4926b51b | 2732 | WARN_ON(drv_join_ibss(local, sdata)); |
fc0561dc | 2733 | fallthrough; |
1ea2c864 JB |
2734 | default: |
2735 | ieee80211_reconfig_stations(sdata); | |
fc0561dc | 2736 | fallthrough; |
1ea2c864 JB |
2737 | case NL80211_IFTYPE_AP: /* AP stations are handled later */ |
2738 | for (i = 0; i < IEEE80211_NUM_ACS; i++) | |
b3e2130b JB |
2739 | drv_conf_tx(local, &sdata->deflink, i, |
2740 | &sdata->deflink.tx_conf[i]); | |
1ea2c864 JB |
2741 | break; |
2742 | } | |
48c5d82a | 2743 | sdata_unlock(sdata); |
1ea2c864 | 2744 | |
ac8dd506 JB |
2745 | /* common change flags for all interface types */ |
2746 | changed = BSS_CHANGED_ERP_CTS_PROT | | |
2747 | BSS_CHANGED_ERP_PREAMBLE | | |
2748 | BSS_CHANGED_ERP_SLOT | | |
2749 | BSS_CHANGED_HT | | |
2750 | BSS_CHANGED_BASIC_RATES | | |
2751 | BSS_CHANGED_BEACON_INT | | |
2752 | BSS_CHANGED_BSSID | | |
4ced3f74 | 2753 | BSS_CHANGED_CQM | |
55de47f6 | 2754 | BSS_CHANGED_QOS | |
1ea6f9c0 | 2755 | BSS_CHANGED_IDLE | |
dcbe73ca PKC |
2756 | BSS_CHANGED_TXPOWER | |
2757 | BSS_CHANGED_MCAST_RATE; | |
ac8dd506 | 2758 | |
d0a9123e | 2759 | if (sdata->vif.bss_conf.mu_mimo_owner) |
23a1f8d4 SS |
2760 | changed |= BSS_CHANGED_MU_GROUPS; |
2761 | ||
f2753ddb JB |
2762 | switch (sdata->vif.type) { |
2763 | case NL80211_IFTYPE_STATION: | |
0d392e93 | 2764 | changed |= BSS_CHANGED_ASSOC | |
ab095877 EP |
2765 | BSS_CHANGED_ARP_FILTER | |
2766 | BSS_CHANGED_PS; | |
c65dd147 | 2767 | |
989c6505 | 2768 | /* Re-send beacon info report to the driver */ |
bfd8403a | 2769 | if (sdata->deflink.u.mgd.have_beacon) |
989c6505 | 2770 | changed |= BSS_CHANGED_BEACON_INFO; |
c65dd147 | 2771 | |
e38a017b AS |
2772 | if (sdata->vif.bss_conf.max_idle_period || |
2773 | sdata->vif.bss_conf.protected_keep_alive) | |
2774 | changed |= BSS_CHANGED_KEEP_ALIVE; | |
2775 | ||
8d61ffa5 | 2776 | sdata_lock(sdata); |
ac8dd506 | 2777 | ieee80211_bss_info_change_notify(sdata, changed); |
8d61ffa5 | 2778 | sdata_unlock(sdata); |
ac8dd506 | 2779 | break; |
6e0bd6c3 | 2780 | case NL80211_IFTYPE_OCB: |
239281f8 RL |
2781 | changed |= BSS_CHANGED_OCB; |
2782 | ieee80211_bss_info_change_notify(sdata, changed); | |
6e0bd6c3 | 2783 | break; |
f2753ddb | 2784 | case NL80211_IFTYPE_ADHOC: |
ac8dd506 | 2785 | changed |= BSS_CHANGED_IBSS; |
fc0561dc | 2786 | fallthrough; |
f2753ddb | 2787 | case NL80211_IFTYPE_AP: |
339afbf4 | 2788 | changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS; |
e7979ac7 | 2789 | |
bc847970 PKC |
2790 | if (sdata->vif.bss_conf.ftm_responder == 1 && |
2791 | wiphy_ext_feature_isset(sdata->local->hw.wiphy, | |
2792 | NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER)) | |
2793 | changed |= BSS_CHANGED_FTM_RESPONDER; | |
2794 | ||
1041638f | 2795 | if (sdata->vif.type == NL80211_IFTYPE_AP) { |
e7979ac7 AN |
2796 | changed |= BSS_CHANGED_AP_PROBE_RESP; |
2797 | ||
bfd8403a | 2798 | if (rcu_access_pointer(sdata->deflink.u.ap.beacon)) |
b327c84c GG |
2799 | drv_start_ap(local, sdata, |
2800 | sdata->deflink.conf); | |
1041638f | 2801 | } |
fc0561dc | 2802 | fallthrough; |
f2753ddb | 2803 | case NL80211_IFTYPE_MESH_POINT: |
8da34932 JB |
2804 | if (sdata->vif.bss_conf.enable_beacon) { |
2805 | changed |= BSS_CHANGED_BEACON | | |
2806 | BSS_CHANGED_BEACON_ENABLED; | |
2807 | ieee80211_bss_info_change_notify(sdata, changed); | |
2808 | } | |
f2753ddb | 2809 | break; |
167e33f4 AB |
2810 | case NL80211_IFTYPE_NAN: |
2811 | res = ieee80211_reconfig_nan(sdata); | |
2812 | if (res < 0) { | |
2813 | ieee80211_handle_reconfig_failure(local); | |
2814 | return res; | |
2815 | } | |
2816 | break; | |
f2753ddb JB |
2817 | case NL80211_IFTYPE_AP_VLAN: |
2818 | case NL80211_IFTYPE_MONITOR: | |
98104fde | 2819 | case NL80211_IFTYPE_P2P_DEVICE: |
b205786e | 2820 | /* nothing to do */ |
f142c6b9 | 2821 | break; |
f2753ddb | 2822 | case NL80211_IFTYPE_UNSPECIFIED: |
2e161f78 | 2823 | case NUM_NL80211_IFTYPES: |
2ca27bcf JB |
2824 | case NL80211_IFTYPE_P2P_CLIENT: |
2825 | case NL80211_IFTYPE_P2P_GO: | |
70d9c599 | 2826 | case NL80211_IFTYPE_WDS: |
f2753ddb JB |
2827 | WARN_ON(1); |
2828 | break; | |
2829 | } | |
2830 | } | |
2831 | ||
4a733ef1 | 2832 | ieee80211_recalc_ps(local); |
8e1b23b9 | 2833 | |
6e1b1b24 EP |
2834 | /* |
2835 | * The sta might be in psm against the ap (e.g. because | |
2836 | * this was the state before a hw restart), so we | |
2837 | * explicitly send a null packet in order to make sure | |
2838 | * it'll sync against the ap (and get out of psm). | |
2839 | */ | |
2840 | if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) { | |
2841 | list_for_each_entry(sdata, &local->interfaces, list) { | |
2842 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
2843 | continue; | |
20f544ee JB |
2844 | if (!sdata->u.mgd.associated) |
2845 | continue; | |
6e1b1b24 | 2846 | |
076cdcb1 | 2847 | ieee80211_send_nullfunc(local, sdata, false); |
6e1b1b24 EP |
2848 | } |
2849 | } | |
2850 | ||
2e8d397e | 2851 | /* APs are now beaconing, add back stations */ |
48c5d82a JB |
2852 | list_for_each_entry(sdata, &local->interfaces, list) { |
2853 | if (!ieee80211_sdata_running(sdata)) | |
2e8d397e AN |
2854 | continue; |
2855 | ||
48c5d82a JB |
2856 | sdata_lock(sdata); |
2857 | switch (sdata->vif.type) { | |
2858 | case NL80211_IFTYPE_AP_VLAN: | |
2859 | case NL80211_IFTYPE_AP: | |
2860 | ieee80211_reconfig_stations(sdata); | |
2861 | break; | |
2862 | default: | |
2863 | break; | |
2864 | } | |
2865 | sdata_unlock(sdata); | |
2e8d397e | 2866 | } |
2e8d397e | 2867 | |
7b21aea0 | 2868 | /* add back keys */ |
f9dca80b | 2869 | list_for_each_entry(sdata, &local->interfaces, list) |
624ff4b2 | 2870 | ieee80211_reenable_keys(sdata); |
7b21aea0 | 2871 | |
0d440ea2 EP |
2872 | /* Reconfigure sched scan if it was interrupted by FW restart */ |
2873 | mutex_lock(&local->mtx); | |
2874 | sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, | |
2875 | lockdep_is_held(&local->mtx)); | |
2876 | sched_scan_req = rcu_dereference_protected(local->sched_scan_req, | |
2877 | lockdep_is_held(&local->mtx)); | |
2878 | if (sched_scan_sdata && sched_scan_req) | |
2879 | /* | |
2880 | * Sched scan stopped, but we don't want to report it. Instead, | |
2881 | * we're trying to reschedule. However, if more than one scan | |
2882 | * plan was set, we cannot reschedule since we don't know which | |
2883 | * scan plan was currently running (and some scan plans may have | |
2884 | * already finished). | |
2885 | */ | |
2886 | if (sched_scan_req->n_scan_plans > 1 || | |
2887 | __ieee80211_request_sched_scan_start(sched_scan_sdata, | |
b9f628fc EP |
2888 | sched_scan_req)) { |
2889 | RCU_INIT_POINTER(local->sched_scan_sdata, NULL); | |
2890 | RCU_INIT_POINTER(local->sched_scan_req, NULL); | |
0d440ea2 | 2891 | sched_scan_stopped = true; |
b9f628fc | 2892 | } |
0d440ea2 EP |
2893 | mutex_unlock(&local->mtx); |
2894 | ||
2895 | if (sched_scan_stopped) | |
a05829a7 | 2896 | cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0); |
0d440ea2 | 2897 | |
c6209488 | 2898 | wake_up: |
04800ada | 2899 | |
3c3e21e7 JB |
2900 | if (local->monitors == local->open_count && local->monitors > 0) |
2901 | ieee80211_add_virtual_monitor(local); | |
2902 | ||
2a419056 JB |
2903 | /* |
2904 | * Clear the WLAN_STA_BLOCK_BA flag so new aggregation | |
2905 | * sessions can be established after a resume. | |
2906 | * | |
2907 | * Also tear down aggregation sessions since reconfiguring | |
2908 | * them in a hardware restart scenario is not easily done | |
2909 | * right now, and the hardware will have lost information | |
2910 | * about the sessions, but we and the AP still think they | |
2911 | * are active. This is really a workaround though. | |
2912 | */ | |
30686bf7 | 2913 | if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { |
2a419056 JB |
2914 | mutex_lock(&local->sta_mtx); |
2915 | ||
2916 | list_for_each_entry(sta, &local->sta_list, list) { | |
27392719 EP |
2917 | if (!local->resuming) |
2918 | ieee80211_sta_tear_down_BA_sessions( | |
2919 | sta, AGG_STOP_LOCAL_REQUEST); | |
c2c98fde | 2920 | clear_sta_flag(sta, WLAN_STA_BLOCK_BA); |
74e2bd1f | 2921 | } |
2a419056 JB |
2922 | |
2923 | mutex_unlock(&local->sta_mtx); | |
74e2bd1f | 2924 | } |
74e2bd1f | 2925 | |
13dee10b JB |
2926 | /* |
2927 | * If this is for hw restart things are still running. | |
2928 | * We may want to change that later, however. | |
2929 | */ | |
2930 | if (local->open_count && (!suspended || reconfig_due_to_wowlan)) | |
2931 | drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART); | |
2932 | ||
2316380f | 2933 | if (local->in_reconfig) { |
7d352ccf | 2934 | in_reconfig = local->in_reconfig; |
2316380f SS |
2935 | local->in_reconfig = false; |
2936 | barrier(); | |
2937 | ||
2938 | /* Restart deferred ROCs */ | |
2939 | mutex_lock(&local->mtx); | |
2940 | ieee80211_start_next_roc(local); | |
2941 | mutex_unlock(&local->mtx); | |
f8891461 NG |
2942 | |
2943 | /* Requeue all works */ | |
2944 | list_for_each_entry(sdata, &local->interfaces, list) | |
2945 | ieee80211_queue_work(&local->hw, &sdata->work); | |
2316380f SS |
2946 | } |
2947 | ||
445ea4e8 | 2948 | ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
2949 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
2950 | false); | |
f2753ddb | 2951 | |
7d352ccf YC |
2952 | if (in_reconfig) { |
2953 | list_for_each_entry(sdata, &local->interfaces, list) { | |
2954 | if (!ieee80211_sdata_running(sdata)) | |
2955 | continue; | |
2956 | if (sdata->vif.type == NL80211_IFTYPE_STATION) | |
2957 | ieee80211_sta_restart(sdata); | |
2958 | } | |
2959 | } | |
2960 | ||
b0485e9f | 2961 | if (!suspended) |
5bb644a0 JB |
2962 | return 0; |
2963 | ||
2964 | #ifdef CONFIG_PM | |
ceb99fe0 | 2965 | /* first set suspended false, then resuming */ |
5bb644a0 | 2966 | local->suspended = false; |
ceb99fe0 JB |
2967 | mb(); |
2968 | local->resuming = false; | |
5bb644a0 | 2969 | |
74430f94 | 2970 | ieee80211_flush_completed_scan(local, false); |
9120d94e | 2971 | |
0f8b8245 | 2972 | if (local->open_count && !reconfig_due_to_wowlan) |
cf2c92d8 EP |
2973 | drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND); |
2974 | ||
b8360ab8 JB |
2975 | list_for_each_entry(sdata, &local->interfaces, list) { |
2976 | if (!ieee80211_sdata_running(sdata)) | |
2977 | continue; | |
2978 | if (sdata->vif.type == NL80211_IFTYPE_STATION) | |
2979 | ieee80211_sta_restart(sdata); | |
2980 | } | |
2981 | ||
26d59535 | 2982 | mod_timer(&local->sta_cleanup, jiffies + 1); |
5bb644a0 JB |
2983 | #else |
2984 | WARN_ON(1); | |
2985 | #endif | |
d43c6b6e | 2986 | |
f2753ddb JB |
2987 | return 0; |
2988 | } | |
42935eca | 2989 | |
7d352ccf | 2990 | static void ieee80211_reconfig_disconnect(struct ieee80211_vif *vif, u8 flag) |
95acac61 JB |
2991 | { |
2992 | struct ieee80211_sub_if_data *sdata; | |
2993 | struct ieee80211_local *local; | |
2994 | struct ieee80211_key *key; | |
2995 | ||
2996 | if (WARN_ON(!vif)) | |
2997 | return; | |
2998 | ||
2999 | sdata = vif_to_sdata(vif); | |
3000 | local = sdata->local; | |
3001 | ||
7d352ccf YC |
3002 | if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_RESUME && |
3003 | !local->resuming)) | |
3004 | return; | |
3005 | ||
3006 | if (WARN_ON(flag & IEEE80211_SDATA_DISCONNECT_HW_RESTART && | |
3007 | !local->in_reconfig)) | |
95acac61 JB |
3008 | return; |
3009 | ||
3010 | if (WARN_ON(vif->type != NL80211_IFTYPE_STATION)) | |
3011 | return; | |
3012 | ||
7d352ccf | 3013 | sdata->flags |= flag; |
95acac61 JB |
3014 | |
3015 | mutex_lock(&local->key_mtx); | |
3016 | list_for_each_entry(key, &sdata->key_list, list) | |
3017 | key->flags |= KEY_FLAG_TAINTED; | |
3018 | mutex_unlock(&local->key_mtx); | |
3019 | } | |
7d352ccf YC |
3020 | |
3021 | void ieee80211_hw_restart_disconnect(struct ieee80211_vif *vif) | |
3022 | { | |
3023 | ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_HW_RESTART); | |
3024 | } | |
3025 | EXPORT_SYMBOL_GPL(ieee80211_hw_restart_disconnect); | |
3026 | ||
3027 | void ieee80211_resume_disconnect(struct ieee80211_vif *vif) | |
3028 | { | |
3029 | ieee80211_reconfig_disconnect(vif, IEEE80211_SDATA_DISCONNECT_RESUME); | |
3030 | } | |
95acac61 JB |
3031 | EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect); |
3032 | ||
e9aac179 | 3033 | void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata, |
d8675a63 | 3034 | struct ieee80211_link_data *link) |
0f78231b | 3035 | { |
04ecd257 JB |
3036 | struct ieee80211_local *local = sdata->local; |
3037 | struct ieee80211_chanctx_conf *chanctx_conf; | |
3038 | struct ieee80211_chanctx *chanctx; | |
025e6be2 | 3039 | |
04ecd257 | 3040 | mutex_lock(&local->chanctx_mtx); |
0f78231b | 3041 | |
d8675a63 | 3042 | chanctx_conf = rcu_dereference_protected(link->conf->chanctx_conf, |
d0a9123e | 3043 | lockdep_is_held(&local->chanctx_mtx)); |
0f78231b | 3044 | |
c189a685 AO |
3045 | /* |
3046 | * This function can be called from a work, thus it may be possible | |
3047 | * that the chanctx_conf is removed (due to a disconnection, for | |
3048 | * example). | |
3049 | * So nothing should be done in such case. | |
3050 | */ | |
3051 | if (!chanctx_conf) | |
5d8e4237 | 3052 | goto unlock; |
0f78231b | 3053 | |
04ecd257 JB |
3054 | chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); |
3055 | ieee80211_recalc_smps_chanctx(local, chanctx); | |
5d8e4237 | 3056 | unlock: |
04ecd257 | 3057 | mutex_unlock(&local->chanctx_mtx); |
0f78231b | 3058 | } |
8e664fb3 | 3059 | |
0cbf348a AO |
3060 | void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata, |
3061 | int link_id) | |
21f659bf EP |
3062 | { |
3063 | struct ieee80211_local *local = sdata->local; | |
3064 | struct ieee80211_chanctx_conf *chanctx_conf; | |
3065 | struct ieee80211_chanctx *chanctx; | |
0cbf348a | 3066 | int i; |
21f659bf EP |
3067 | |
3068 | mutex_lock(&local->chanctx_mtx); | |
3069 | ||
0cbf348a AO |
3070 | for (i = 0; i < ARRAY_SIZE(sdata->vif.link_conf); i++) { |
3071 | struct ieee80211_bss_conf *bss_conf; | |
21f659bf | 3072 | |
0cbf348a AO |
3073 | if (link_id >= 0 && link_id != i) |
3074 | continue; | |
21f659bf | 3075 | |
0cbf348a AO |
3076 | rcu_read_lock(); |
3077 | bss_conf = rcu_dereference(sdata->vif.link_conf[i]); | |
3078 | if (!bss_conf) { | |
3079 | rcu_read_unlock(); | |
3080 | continue; | |
3081 | } | |
3082 | ||
3083 | chanctx_conf = rcu_dereference_protected(bss_conf->chanctx_conf, | |
3084 | lockdep_is_held(&local->chanctx_mtx)); | |
3085 | /* | |
3086 | * Since we hold the chanctx_mtx (checked above) | |
3087 | * we can take the chanctx_conf pointer out of the | |
3088 | * RCU critical section, it cannot go away without | |
3089 | * the mutex. Just the way we reached it could - in | |
3090 | * theory - go away, but we don't really care and | |
3091 | * it really shouldn't happen anyway. | |
3092 | */ | |
3093 | rcu_read_unlock(); | |
3094 | ||
efe9c2bf | 3095 | if (!chanctx_conf) |
0cbf348a AO |
3096 | goto unlock; |
3097 | ||
3098 | chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, | |
3099 | conf); | |
3100 | ieee80211_recalc_chanctx_min_def(local, chanctx); | |
3101 | } | |
21f659bf EP |
3102 | unlock: |
3103 | mutex_unlock(&local->chanctx_mtx); | |
3104 | } | |
3105 | ||
8e664fb3 JB |
3106 | size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset) |
3107 | { | |
3108 | size_t pos = offset; | |
3109 | ||
3110 | while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC) | |
3111 | pos += 2 + ies[pos + 1]; | |
3112 | ||
3113 | return pos; | |
3114 | } | |
615f7b9b | 3115 | |
ef96a842 | 3116 | u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, |
42e7aa77 AS |
3117 | u16 cap) |
3118 | { | |
3119 | __le16 tmp; | |
3120 | ||
3121 | *pos++ = WLAN_EID_HT_CAPABILITY; | |
3122 | *pos++ = sizeof(struct ieee80211_ht_cap); | |
3123 | memset(pos, 0, sizeof(struct ieee80211_ht_cap)); | |
3124 | ||
3125 | /* capability flags */ | |
3126 | tmp = cpu_to_le16(cap); | |
3127 | memcpy(pos, &tmp, sizeof(u16)); | |
3128 | pos += sizeof(u16); | |
3129 | ||
3130 | /* AMPDU parameters */ | |
ef96a842 BG |
3131 | *pos++ = ht_cap->ampdu_factor | |
3132 | (ht_cap->ampdu_density << | |
42e7aa77 AS |
3133 | IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT); |
3134 | ||
3135 | /* MCS set */ | |
ef96a842 BG |
3136 | memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs)); |
3137 | pos += sizeof(ht_cap->mcs); | |
42e7aa77 AS |
3138 | |
3139 | /* extended capabilities */ | |
3140 | pos += sizeof(__le16); | |
3141 | ||
3142 | /* BF capabilities */ | |
3143 | pos += sizeof(__le32); | |
3144 | ||
3145 | /* antenna selection */ | |
3146 | pos += sizeof(u8); | |
3147 | ||
3148 | return pos; | |
3149 | } | |
3150 | ||
ba0afa2f | 3151 | u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, |
cc3983d8 | 3152 | u32 cap) |
ba0afa2f MP |
3153 | { |
3154 | __le32 tmp; | |
3155 | ||
3156 | *pos++ = WLAN_EID_VHT_CAPABILITY; | |
d4950281 MP |
3157 | *pos++ = sizeof(struct ieee80211_vht_cap); |
3158 | memset(pos, 0, sizeof(struct ieee80211_vht_cap)); | |
ba0afa2f MP |
3159 | |
3160 | /* capability flags */ | |
3161 | tmp = cpu_to_le32(cap); | |
3162 | memcpy(pos, &tmp, sizeof(u32)); | |
3163 | pos += sizeof(u32); | |
3164 | ||
3165 | /* VHT MCS set */ | |
3166 | memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs)); | |
3167 | pos += sizeof(vht_cap->vht_mcs); | |
3168 | ||
3169 | return pos; | |
3170 | } | |
3171 | ||
60ad72da SE |
3172 | u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) |
3173 | { | |
3174 | const struct ieee80211_sta_he_cap *he_cap; | |
3175 | struct ieee80211_supported_band *sband; | |
3176 | u8 n; | |
3177 | ||
3178 | sband = ieee80211_get_sband(sdata); | |
3179 | if (!sband) | |
3180 | return 0; | |
3181 | ||
3182 | he_cap = ieee80211_get_he_iftype_cap(sband, iftype); | |
3183 | if (!he_cap) | |
3184 | return 0; | |
3185 | ||
3186 | n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); | |
3187 | return 2 + 1 + | |
3188 | sizeof(he_cap->he_cap_elem) + n + | |
3189 | ieee80211_he_ppe_size(he_cap->ppe_thres[0], | |
3190 | he_cap->he_cap_elem.phy_cap_info); | |
3191 | } | |
3192 | ||
ba323e29 | 3193 | u8 *ieee80211_ie_build_he_cap(ieee80211_conn_flags_t disable_flags, u8 *pos, |
41cbb0f5 LC |
3194 | const struct ieee80211_sta_he_cap *he_cap, |
3195 | u8 *end) | |
3196 | { | |
1f2c1044 | 3197 | struct ieee80211_he_cap_elem elem; |
41cbb0f5 LC |
3198 | u8 n; |
3199 | u8 ie_len; | |
3200 | u8 *orig_pos = pos; | |
3201 | ||
3202 | /* Make sure we have place for the IE */ | |
3203 | /* | |
3204 | * TODO: the 1 added is because this temporarily is under the EXTENSION | |
3205 | * IE. Get rid of it when it moves. | |
3206 | */ | |
3207 | if (!he_cap) | |
3208 | return orig_pos; | |
3209 | ||
1f2c1044 JB |
3210 | /* modify on stack first to calculate 'n' and 'ie_len' correctly */ |
3211 | elem = he_cap->he_cap_elem; | |
3212 | ||
ba323e29 | 3213 | if (disable_flags & IEEE80211_CONN_DISABLE_40MHZ) |
1f2c1044 JB |
3214 | elem.phy_cap_info[0] &= |
3215 | ~(IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_80MHZ_IN_5G | | |
3216 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G); | |
3217 | ||
ba323e29 | 3218 | if (disable_flags & IEEE80211_CONN_DISABLE_160MHZ) |
1f2c1044 JB |
3219 | elem.phy_cap_info[0] &= |
3220 | ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; | |
3221 | ||
ba323e29 | 3222 | if (disable_flags & IEEE80211_CONN_DISABLE_80P80MHZ) |
1f2c1044 JB |
3223 | elem.phy_cap_info[0] &= |
3224 | ~IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; | |
3225 | ||
3226 | n = ieee80211_he_mcs_nss_size(&elem); | |
41cbb0f5 LC |
3227 | ie_len = 2 + 1 + |
3228 | sizeof(he_cap->he_cap_elem) + n + | |
3229 | ieee80211_he_ppe_size(he_cap->ppe_thres[0], | |
3230 | he_cap->he_cap_elem.phy_cap_info); | |
3231 | ||
3232 | if ((end - pos) < ie_len) | |
3233 | return orig_pos; | |
3234 | ||
3235 | *pos++ = WLAN_EID_EXTENSION; | |
3236 | pos++; /* We'll set the size later below */ | |
3237 | *pos++ = WLAN_EID_EXT_HE_CAPABILITY; | |
3238 | ||
3239 | /* Fixed data */ | |
1f2c1044 JB |
3240 | memcpy(pos, &elem, sizeof(elem)); |
3241 | pos += sizeof(elem); | |
41cbb0f5 LC |
3242 | |
3243 | memcpy(pos, &he_cap->he_mcs_nss_supp, n); | |
3244 | pos += n; | |
3245 | ||
3246 | /* Check if PPE Threshold should be present */ | |
3247 | if ((he_cap->he_cap_elem.phy_cap_info[6] & | |
3248 | IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0) | |
3249 | goto end; | |
3250 | ||
3251 | /* | |
3252 | * Calculate how many PPET16/PPET8 pairs are to come. Algorithm: | |
3253 | * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK) | |
3254 | */ | |
3255 | n = hweight8(he_cap->ppe_thres[0] & | |
3256 | IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); | |
3257 | n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >> | |
3258 | IEEE80211_PPE_THRES_NSS_POS)); | |
3259 | ||
3260 | /* | |
3261 | * Each pair is 6 bits, and we need to add the 7 "header" bits to the | |
3262 | * total size. | |
3263 | */ | |
3264 | n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7; | |
3265 | n = DIV_ROUND_UP(n, 8); | |
3266 | ||
3267 | /* Copy PPE Thresholds */ | |
3268 | memcpy(pos, &he_cap->ppe_thres, n); | |
3269 | pos += n; | |
3270 | ||
3271 | end: | |
3272 | orig_pos[1] = (pos - orig_pos) - 2; | |
3273 | return pos; | |
3274 | } | |
3275 | ||
24a2042c | 3276 | void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata, |
abd27d06 | 3277 | enum ieee80211_smps_mode smps_mode, |
24a2042c RM |
3278 | struct sk_buff *skb) |
3279 | { | |
3280 | struct ieee80211_supported_band *sband; | |
3281 | const struct ieee80211_sband_iftype_data *iftd; | |
3282 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); | |
3283 | u8 *pos; | |
3284 | u16 cap; | |
3285 | ||
65be6aa3 JB |
3286 | if (!cfg80211_any_usable_channels(sdata->local->hw.wiphy, |
3287 | BIT(NL80211_BAND_6GHZ), | |
3288 | IEEE80211_CHAN_NO_HE)) | |
24a2042c RM |
3289 | return; |
3290 | ||
65be6aa3 JB |
3291 | sband = sdata->local->hw.wiphy->bands[NL80211_BAND_6GHZ]; |
3292 | ||
24a2042c | 3293 | iftd = ieee80211_get_sband_iftype_data(sband, iftype); |
65be6aa3 | 3294 | if (!iftd) |
24a2042c RM |
3295 | return; |
3296 | ||
65ad3ef9 RM |
3297 | /* Check for device HE 6 GHz capability before adding element */ |
3298 | if (!iftd->he_6ghz_capa.capa) | |
3299 | return; | |
3300 | ||
24a2042c RM |
3301 | cap = le16_to_cpu(iftd->he_6ghz_capa.capa); |
3302 | cap &= ~IEEE80211_HE_6GHZ_CAP_SM_PS; | |
3303 | ||
abd27d06 | 3304 | switch (smps_mode) { |
24a2042c RM |
3305 | case IEEE80211_SMPS_AUTOMATIC: |
3306 | case IEEE80211_SMPS_NUM_MODES: | |
3307 | WARN_ON(1); | |
fc0561dc | 3308 | fallthrough; |
24a2042c RM |
3309 | case IEEE80211_SMPS_OFF: |
3310 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DISABLED, | |
3311 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
3312 | break; | |
3313 | case IEEE80211_SMPS_STATIC: | |
3314 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_STATIC, | |
3315 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
3316 | break; | |
3317 | case IEEE80211_SMPS_DYNAMIC: | |
3318 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DYNAMIC, | |
3319 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
3320 | break; | |
3321 | } | |
3322 | ||
3323 | pos = skb_put(skb, 2 + 1 + sizeof(cap)); | |
2ad2274c IP |
3324 | ieee80211_write_he_6ghz_cap(pos, cpu_to_le16(cap), |
3325 | pos + 2 + 1 + sizeof(cap)); | |
24a2042c RM |
3326 | } |
3327 | ||
074d46d1 | 3328 | u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, |
4bf88530 | 3329 | const struct cfg80211_chan_def *chandef, |
57f255f5 | 3330 | u16 prot_mode, bool rifs_mode) |
42e7aa77 | 3331 | { |
074d46d1 | 3332 | struct ieee80211_ht_operation *ht_oper; |
42e7aa77 | 3333 | /* Build HT Information */ |
074d46d1 JB |
3334 | *pos++ = WLAN_EID_HT_OPERATION; |
3335 | *pos++ = sizeof(struct ieee80211_ht_operation); | |
3336 | ht_oper = (struct ieee80211_ht_operation *)pos; | |
4bf88530 JB |
3337 | ht_oper->primary_chan = ieee80211_frequency_to_channel( |
3338 | chandef->chan->center_freq); | |
3339 | switch (chandef->width) { | |
3340 | case NL80211_CHAN_WIDTH_160: | |
3341 | case NL80211_CHAN_WIDTH_80P80: | |
3342 | case NL80211_CHAN_WIDTH_80: | |
3343 | case NL80211_CHAN_WIDTH_40: | |
3344 | if (chandef->center_freq1 > chandef->chan->center_freq) | |
3345 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
3346 | else | |
3347 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
42e7aa77 | 3348 | break; |
5dca295d IP |
3349 | case NL80211_CHAN_WIDTH_320: |
3350 | /* HT information element should not be included on 6GHz */ | |
3351 | WARN_ON(1); | |
3352 | return pos; | |
42e7aa77 | 3353 | default: |
074d46d1 | 3354 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE; |
42e7aa77 AS |
3355 | break; |
3356 | } | |
aee286c2 | 3357 | if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && |
4bf88530 JB |
3358 | chandef->width != NL80211_CHAN_WIDTH_20_NOHT && |
3359 | chandef->width != NL80211_CHAN_WIDTH_20) | |
074d46d1 | 3360 | ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; |
ff3cc5f4 | 3361 | |
57f255f5 AN |
3362 | if (rifs_mode) |
3363 | ht_oper->ht_param |= IEEE80211_HT_PARAM_RIFS_MODE; | |
3364 | ||
431e3154 | 3365 | ht_oper->operation_mode = cpu_to_le16(prot_mode); |
074d46d1 | 3366 | ht_oper->stbc_param = 0x0000; |
42e7aa77 AS |
3367 | |
3368 | /* It seems that Basic MCS set and Supported MCS set | |
3369 | are identical for the first 10 bytes */ | |
074d46d1 JB |
3370 | memset(&ht_oper->basic_set, 0, 16); |
3371 | memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10); | |
42e7aa77 | 3372 | |
074d46d1 | 3373 | return pos + sizeof(struct ieee80211_ht_operation); |
42e7aa77 AS |
3374 | } |
3375 | ||
75d627d5 SW |
3376 | void ieee80211_ie_build_wide_bw_cs(u8 *pos, |
3377 | const struct cfg80211_chan_def *chandef) | |
3378 | { | |
3379 | *pos++ = WLAN_EID_WIDE_BW_CHANNEL_SWITCH; /* EID */ | |
3380 | *pos++ = 3; /* IE length */ | |
3381 | /* New channel width */ | |
3382 | switch (chandef->width) { | |
3383 | case NL80211_CHAN_WIDTH_80: | |
3384 | *pos++ = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
3385 | break; | |
3386 | case NL80211_CHAN_WIDTH_160: | |
3387 | *pos++ = IEEE80211_VHT_CHANWIDTH_160MHZ; | |
3388 | break; | |
3389 | case NL80211_CHAN_WIDTH_80P80: | |
3390 | *pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ; | |
3391 | break; | |
5dca295d IP |
3392 | case NL80211_CHAN_WIDTH_320: |
3393 | /* The behavior is not defined for 320 MHz channels */ | |
3394 | WARN_ON(1); | |
3395 | fallthrough; | |
75d627d5 SW |
3396 | default: |
3397 | *pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT; | |
3398 | } | |
3399 | ||
3400 | /* new center frequency segment 0 */ | |
3401 | *pos++ = ieee80211_frequency_to_channel(chandef->center_freq1); | |
3402 | /* new center frequency segment 1 */ | |
3403 | if (chandef->center_freq2) | |
3404 | *pos++ = ieee80211_frequency_to_channel(chandef->center_freq2); | |
3405 | else | |
3406 | *pos++ = 0; | |
3407 | } | |
3408 | ||
fb28ec0c AN |
3409 | u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, |
3410 | const struct cfg80211_chan_def *chandef) | |
3411 | { | |
3412 | struct ieee80211_vht_operation *vht_oper; | |
3413 | ||
3414 | *pos++ = WLAN_EID_VHT_OPERATION; | |
3415 | *pos++ = sizeof(struct ieee80211_vht_operation); | |
3416 | vht_oper = (struct ieee80211_vht_operation *)pos; | |
2fb51c35 | 3417 | vht_oper->center_freq_seg0_idx = ieee80211_frequency_to_channel( |
fb28ec0c AN |
3418 | chandef->center_freq1); |
3419 | if (chandef->center_freq2) | |
2fb51c35 | 3420 | vht_oper->center_freq_seg1_idx = |
fb28ec0c | 3421 | ieee80211_frequency_to_channel(chandef->center_freq2); |
f020ae40 | 3422 | else |
2fb51c35 | 3423 | vht_oper->center_freq_seg1_idx = 0x00; |
fb28ec0c AN |
3424 | |
3425 | switch (chandef->width) { | |
3426 | case NL80211_CHAN_WIDTH_160: | |
23665aaf JM |
3427 | /* |
3428 | * Convert 160 MHz channel width to new style as interop | |
3429 | * workaround. | |
3430 | */ | |
3431 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
2fb51c35 | 3432 | vht_oper->center_freq_seg1_idx = vht_oper->center_freq_seg0_idx; |
23665aaf | 3433 | if (chandef->chan->center_freq < chandef->center_freq1) |
2fb51c35 | 3434 | vht_oper->center_freq_seg0_idx -= 8; |
23665aaf | 3435 | else |
2fb51c35 | 3436 | vht_oper->center_freq_seg0_idx += 8; |
fb28ec0c AN |
3437 | break; |
3438 | case NL80211_CHAN_WIDTH_80P80: | |
23665aaf JM |
3439 | /* |
3440 | * Convert 80+80 MHz channel width to new style as interop | |
3441 | * workaround. | |
3442 | */ | |
3443 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
fb28ec0c AN |
3444 | break; |
3445 | case NL80211_CHAN_WIDTH_80: | |
3446 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
3447 | break; | |
5dca295d IP |
3448 | case NL80211_CHAN_WIDTH_320: |
3449 | /* VHT information element should not be included on 6GHz */ | |
3450 | WARN_ON(1); | |
3451 | return pos; | |
fb28ec0c AN |
3452 | default: |
3453 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT; | |
3454 | break; | |
3455 | } | |
3456 | ||
3457 | /* don't require special VHT peer rates */ | |
3458 | vht_oper->basic_mcs_set = cpu_to_le16(0xffff); | |
3459 | ||
3460 | return pos + sizeof(struct ieee80211_vht_operation); | |
3461 | } | |
3462 | ||
d1b7524b | 3463 | u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef) |
60ad72da SE |
3464 | { |
3465 | struct ieee80211_he_operation *he_oper; | |
d1b7524b | 3466 | struct ieee80211_he_6ghz_oper *he_6ghz_op; |
60ad72da | 3467 | u32 he_oper_params; |
d1b7524b RM |
3468 | u8 ie_len = 1 + sizeof(struct ieee80211_he_operation); |
3469 | ||
3470 | if (chandef->chan->band == NL80211_BAND_6GHZ) | |
3471 | ie_len += sizeof(struct ieee80211_he_6ghz_oper); | |
60ad72da SE |
3472 | |
3473 | *pos++ = WLAN_EID_EXTENSION; | |
d1b7524b | 3474 | *pos++ = ie_len; |
60ad72da SE |
3475 | *pos++ = WLAN_EID_EXT_HE_OPERATION; |
3476 | ||
3477 | he_oper_params = 0; | |
3478 | he_oper_params |= u32_encode_bits(1023, /* disabled */ | |
3479 | IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); | |
3480 | he_oper_params |= u32_encode_bits(1, | |
3481 | IEEE80211_HE_OPERATION_ER_SU_DISABLE); | |
3482 | he_oper_params |= u32_encode_bits(1, | |
3483 | IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); | |
d1b7524b RM |
3484 | if (chandef->chan->band == NL80211_BAND_6GHZ) |
3485 | he_oper_params |= u32_encode_bits(1, | |
3486 | IEEE80211_HE_OPERATION_6GHZ_OP_INFO); | |
60ad72da SE |
3487 | |
3488 | he_oper = (struct ieee80211_he_operation *)pos; | |
3489 | he_oper->he_oper_params = cpu_to_le32(he_oper_params); | |
3490 | ||
3491 | /* don't require special HE peer rates */ | |
3492 | he_oper->he_mcs_nss_set = cpu_to_le16(0xffff); | |
d1b7524b | 3493 | pos += sizeof(struct ieee80211_he_operation); |
60ad72da | 3494 | |
d1b7524b RM |
3495 | if (chandef->chan->band != NL80211_BAND_6GHZ) |
3496 | goto out; | |
60ad72da | 3497 | |
d1b7524b RM |
3498 | /* TODO add VHT operational */ |
3499 | he_6ghz_op = (struct ieee80211_he_6ghz_oper *)pos; | |
3500 | he_6ghz_op->minrate = 6; /* 6 Mbps */ | |
3501 | he_6ghz_op->primary = | |
3502 | ieee80211_frequency_to_channel(chandef->chan->center_freq); | |
3503 | he_6ghz_op->ccfs0 = | |
3504 | ieee80211_frequency_to_channel(chandef->center_freq1); | |
3505 | if (chandef->center_freq2) | |
3506 | he_6ghz_op->ccfs1 = | |
3507 | ieee80211_frequency_to_channel(chandef->center_freq2); | |
3508 | else | |
3509 | he_6ghz_op->ccfs1 = 0; | |
3510 | ||
3511 | switch (chandef->width) { | |
5dca295d IP |
3512 | case NL80211_CHAN_WIDTH_320: |
3513 | /* | |
3514 | * TODO: mesh operation is not defined over 6GHz 320 MHz | |
3515 | * channels. | |
3516 | */ | |
3517 | WARN_ON(1); | |
3518 | break; | |
d1b7524b RM |
3519 | case NL80211_CHAN_WIDTH_160: |
3520 | /* Convert 160 MHz channel width to new style as interop | |
3521 | * workaround. | |
3522 | */ | |
3523 | he_6ghz_op->control = | |
3524 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; | |
3525 | he_6ghz_op->ccfs1 = he_6ghz_op->ccfs0; | |
3526 | if (chandef->chan->center_freq < chandef->center_freq1) | |
3527 | he_6ghz_op->ccfs0 -= 8; | |
3528 | else | |
3529 | he_6ghz_op->ccfs0 += 8; | |
3530 | fallthrough; | |
3531 | case NL80211_CHAN_WIDTH_80P80: | |
3532 | he_6ghz_op->control = | |
3533 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; | |
3534 | break; | |
3535 | case NL80211_CHAN_WIDTH_80: | |
3536 | he_6ghz_op->control = | |
3537 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ; | |
3538 | break; | |
3539 | case NL80211_CHAN_WIDTH_40: | |
3540 | he_6ghz_op->control = | |
3541 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ; | |
3542 | break; | |
3543 | default: | |
3544 | he_6ghz_op->control = | |
3545 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ; | |
3546 | break; | |
3547 | } | |
3548 | ||
3549 | pos += sizeof(struct ieee80211_he_6ghz_oper); | |
3550 | ||
3551 | out: | |
3552 | return pos; | |
60ad72da SE |
3553 | } |
3554 | ||
8ac3c704 JB |
3555 | bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, |
3556 | struct cfg80211_chan_def *chandef) | |
42e7aa77 AS |
3557 | { |
3558 | enum nl80211_channel_type channel_type; | |
3559 | ||
8ac3c704 JB |
3560 | if (!ht_oper) |
3561 | return false; | |
42e7aa77 | 3562 | |
074d46d1 | 3563 | switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { |
42e7aa77 AS |
3564 | case IEEE80211_HT_PARAM_CHA_SEC_NONE: |
3565 | channel_type = NL80211_CHAN_HT20; | |
3566 | break; | |
3567 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: | |
3568 | channel_type = NL80211_CHAN_HT40PLUS; | |
3569 | break; | |
3570 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: | |
3571 | channel_type = NL80211_CHAN_HT40MINUS; | |
3572 | break; | |
3573 | default: | |
8ac3c704 | 3574 | return false; |
42e7aa77 AS |
3575 | } |
3576 | ||
8ac3c704 JB |
3577 | cfg80211_chandef_create(chandef, chandef->chan, channel_type); |
3578 | return true; | |
42e7aa77 AS |
3579 | } |
3580 | ||
2a333a0d | 3581 | bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, |
7eb26df2 JB |
3582 | const struct ieee80211_vht_operation *oper, |
3583 | const struct ieee80211_ht_operation *htop, | |
8ac3c704 | 3584 | struct cfg80211_chan_def *chandef) |
abcff6ef | 3585 | { |
8ac3c704 | 3586 | struct cfg80211_chan_def new = *chandef; |
7eb26df2 JB |
3587 | int cf0, cf1; |
3588 | int ccfs0, ccfs1, ccfs2; | |
3589 | int ccf0, ccf1; | |
33181ea7 SB |
3590 | u32 vht_cap; |
3591 | bool support_80_80 = false; | |
3592 | bool support_160 = false; | |
2a333a0d JB |
3593 | u8 ext_nss_bw_supp = u32_get_bits(vht_cap_info, |
3594 | IEEE80211_VHT_CAP_EXT_NSS_BW_MASK); | |
3595 | u8 supp_chwidth = u32_get_bits(vht_cap_info, | |
3596 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK); | |
8ac3c704 | 3597 | |
7eb26df2 | 3598 | if (!oper || !htop) |
8ac3c704 | 3599 | return false; |
abcff6ef | 3600 | |
33181ea7 SB |
3601 | vht_cap = hw->wiphy->bands[chandef->chan->band]->vht_cap.cap; |
3602 | support_160 = (vht_cap & (IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK | | |
3603 | IEEE80211_VHT_CAP_EXT_NSS_BW_MASK)); | |
3604 | support_80_80 = ((vht_cap & | |
3605 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) || | |
3606 | (vht_cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ && | |
3607 | vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) || | |
3608 | ((vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) >> | |
3609 | IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT > 1)); | |
7eb26df2 JB |
3610 | ccfs0 = oper->center_freq_seg0_idx; |
3611 | ccfs1 = oper->center_freq_seg1_idx; | |
3612 | ccfs2 = (le16_to_cpu(htop->operation_mode) & | |
3613 | IEEE80211_HT_OP_MODE_CCFS2_MASK) | |
3614 | >> IEEE80211_HT_OP_MODE_CCFS2_SHIFT; | |
3615 | ||
7eb26df2 | 3616 | ccf0 = ccfs0; |
2a333a0d JB |
3617 | |
3618 | /* if not supported, parse as though we didn't understand it */ | |
3619 | if (!ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW)) | |
3620 | ext_nss_bw_supp = 0; | |
3621 | ||
3622 | /* | |
3623 | * Cf. IEEE 802.11 Table 9-250 | |
3624 | * | |
3625 | * We really just consider that because it's inefficient to connect | |
3626 | * at a higher bandwidth than we'll actually be able to use. | |
3627 | */ | |
3628 | switch ((supp_chwidth << 4) | ext_nss_bw_supp) { | |
3629 | default: | |
3630 | case 0x00: | |
3631 | ccf1 = 0; | |
3632 | support_160 = false; | |
3633 | support_80_80 = false; | |
3634 | break; | |
3635 | case 0x01: | |
3636 | support_80_80 = false; | |
fc0561dc | 3637 | fallthrough; |
2a333a0d JB |
3638 | case 0x02: |
3639 | case 0x03: | |
7eb26df2 | 3640 | ccf1 = ccfs2; |
2a333a0d JB |
3641 | break; |
3642 | case 0x10: | |
3643 | ccf1 = ccfs1; | |
3644 | break; | |
3645 | case 0x11: | |
3646 | case 0x12: | |
3647 | if (!ccfs1) | |
3648 | ccf1 = ccfs2; | |
3649 | else | |
3650 | ccf1 = ccfs1; | |
3651 | break; | |
3652 | case 0x13: | |
3653 | case 0x20: | |
3654 | case 0x23: | |
3655 | ccf1 = ccfs1; | |
3656 | break; | |
3657 | } | |
7eb26df2 JB |
3658 | |
3659 | cf0 = ieee80211_channel_to_frequency(ccf0, chandef->chan->band); | |
3660 | cf1 = ieee80211_channel_to_frequency(ccf1, chandef->chan->band); | |
abcff6ef JD |
3661 | |
3662 | switch (oper->chan_width) { | |
3663 | case IEEE80211_VHT_CHANWIDTH_USE_HT: | |
7eb26df2 | 3664 | /* just use HT information directly */ |
abcff6ef JD |
3665 | break; |
3666 | case IEEE80211_VHT_CHANWIDTH_80MHZ: | |
8ac3c704 | 3667 | new.width = NL80211_CHAN_WIDTH_80; |
7eb26df2 | 3668 | new.center_freq1 = cf0; |
23665aaf | 3669 | /* If needed, adjust based on the newer interop workaround. */ |
7eb26df2 | 3670 | if (ccf1) { |
23665aaf JM |
3671 | unsigned int diff; |
3672 | ||
7eb26df2 | 3673 | diff = abs(ccf1 - ccf0); |
33181ea7 | 3674 | if ((diff == 8) && support_160) { |
23665aaf | 3675 | new.width = NL80211_CHAN_WIDTH_160; |
7eb26df2 | 3676 | new.center_freq1 = cf1; |
33181ea7 | 3677 | } else if ((diff > 8) && support_80_80) { |
23665aaf | 3678 | new.width = NL80211_CHAN_WIDTH_80P80; |
7eb26df2 | 3679 | new.center_freq2 = cf1; |
23665aaf JM |
3680 | } |
3681 | } | |
abcff6ef JD |
3682 | break; |
3683 | case IEEE80211_VHT_CHANWIDTH_160MHZ: | |
7eb26df2 | 3684 | /* deprecated encoding */ |
8ac3c704 | 3685 | new.width = NL80211_CHAN_WIDTH_160; |
7eb26df2 | 3686 | new.center_freq1 = cf0; |
abcff6ef JD |
3687 | break; |
3688 | case IEEE80211_VHT_CHANWIDTH_80P80MHZ: | |
7eb26df2 | 3689 | /* deprecated encoding */ |
8ac3c704 | 3690 | new.width = NL80211_CHAN_WIDTH_80P80; |
7eb26df2 JB |
3691 | new.center_freq1 = cf0; |
3692 | new.center_freq2 = cf1; | |
abcff6ef JD |
3693 | break; |
3694 | default: | |
8ac3c704 | 3695 | return false; |
abcff6ef JD |
3696 | } |
3697 | ||
8ac3c704 JB |
3698 | if (!cfg80211_chandef_valid(&new)) |
3699 | return false; | |
3700 | ||
3701 | *chandef = new; | |
3702 | return true; | |
abcff6ef JD |
3703 | } |
3704 | ||
774e00c2 | 3705 | void ieee80211_chandef_eht_oper(const struct ieee80211_eht_operation *eht_oper, |
1e0b3b0b IP |
3706 | bool support_160, bool support_320, |
3707 | struct cfg80211_chan_def *chandef) | |
3708 | { | |
3709 | struct ieee80211_eht_operation_info *info = (void *)eht_oper->optional; | |
3710 | ||
3711 | chandef->center_freq1 = | |
3712 | ieee80211_channel_to_frequency(info->ccfs0, | |
3713 | chandef->chan->band); | |
3714 | ||
3715 | switch (u8_get_bits(info->control, | |
3716 | IEEE80211_EHT_OPER_CHAN_WIDTH)) { | |
3717 | case IEEE80211_EHT_OPER_CHAN_WIDTH_20MHZ: | |
3718 | chandef->width = NL80211_CHAN_WIDTH_20; | |
3719 | break; | |
3720 | case IEEE80211_EHT_OPER_CHAN_WIDTH_40MHZ: | |
3721 | chandef->width = NL80211_CHAN_WIDTH_40; | |
3722 | break; | |
3723 | case IEEE80211_EHT_OPER_CHAN_WIDTH_80MHZ: | |
3724 | chandef->width = NL80211_CHAN_WIDTH_80; | |
3725 | break; | |
3726 | case IEEE80211_EHT_OPER_CHAN_WIDTH_160MHZ: | |
3727 | if (support_160) { | |
3728 | chandef->width = NL80211_CHAN_WIDTH_160; | |
3729 | chandef->center_freq1 = | |
3730 | ieee80211_channel_to_frequency(info->ccfs1, | |
3731 | chandef->chan->band); | |
3732 | } else { | |
3733 | chandef->width = NL80211_CHAN_WIDTH_80; | |
3734 | } | |
3735 | break; | |
3736 | case IEEE80211_EHT_OPER_CHAN_WIDTH_320MHZ: | |
3737 | if (support_320) { | |
3738 | chandef->width = NL80211_CHAN_WIDTH_320; | |
3739 | chandef->center_freq1 = | |
3740 | ieee80211_channel_to_frequency(info->ccfs1, | |
3741 | chandef->chan->band); | |
3742 | } else if (support_160) { | |
3743 | chandef->width = NL80211_CHAN_WIDTH_160; | |
3744 | } else { | |
3745 | chandef->width = NL80211_CHAN_WIDTH_80; | |
3746 | ||
3747 | if (chandef->center_freq1 > chandef->chan->center_freq) | |
3748 | chandef->center_freq1 -= 40; | |
3749 | else | |
3750 | chandef->center_freq1 += 40; | |
3751 | } | |
3752 | break; | |
3753 | } | |
3754 | } | |
3755 | ||
57fa5e85 JB |
3756 | bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, |
3757 | const struct ieee80211_he_operation *he_oper, | |
5dca295d | 3758 | const struct ieee80211_eht_operation *eht_oper, |
57fa5e85 JB |
3759 | struct cfg80211_chan_def *chandef) |
3760 | { | |
3761 | struct ieee80211_local *local = sdata->local; | |
3762 | struct ieee80211_supported_band *sband; | |
3763 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); | |
3764 | const struct ieee80211_sta_he_cap *he_cap; | |
5dca295d | 3765 | const struct ieee80211_sta_eht_cap *eht_cap; |
57fa5e85 JB |
3766 | struct cfg80211_chan_def he_chandef = *chandef; |
3767 | const struct ieee80211_he_6ghz_oper *he_6ghz_oper; | |
cb751b7a | 3768 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; |
5dca295d IP |
3769 | bool support_80_80, support_160, support_320; |
3770 | u8 he_phy_cap, eht_phy_cap; | |
57fa5e85 JB |
3771 | u32 freq; |
3772 | ||
3773 | if (chandef->chan->band != NL80211_BAND_6GHZ) | |
3774 | return true; | |
3775 | ||
3776 | sband = local->hw.wiphy->bands[NL80211_BAND_6GHZ]; | |
3777 | ||
3778 | he_cap = ieee80211_get_he_iftype_cap(sband, iftype); | |
3779 | if (!he_cap) { | |
3780 | sdata_info(sdata, "Missing iftype sband data/HE cap"); | |
3781 | return false; | |
3782 | } | |
3783 | ||
3784 | he_phy_cap = he_cap->he_cap_elem.phy_cap_info[0]; | |
3785 | support_160 = | |
3786 | he_phy_cap & | |
3787 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; | |
3788 | support_80_80 = | |
3789 | he_phy_cap & | |
3790 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; | |
3791 | ||
3792 | if (!he_oper) { | |
3793 | sdata_info(sdata, | |
3794 | "HE is not advertised on (on %d MHz), expect issues\n", | |
3795 | chandef->chan->center_freq); | |
3796 | return false; | |
3797 | } | |
3798 | ||
5dca295d IP |
3799 | eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype); |
3800 | if (!eht_cap) { | |
3801 | sdata_info(sdata, "Missing iftype sband data/EHT cap"); | |
3802 | eht_oper = NULL; | |
3803 | } | |
3804 | ||
57fa5e85 JB |
3805 | he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper); |
3806 | ||
3807 | if (!he_6ghz_oper) { | |
3808 | sdata_info(sdata, | |
3809 | "HE 6GHz operation missing (on %d MHz), expect issues\n", | |
3810 | chandef->chan->center_freq); | |
3811 | return false; | |
3812 | } | |
3813 | ||
5dca295d IP |
3814 | /* |
3815 | * The EHT operation IE does not contain the primary channel so the | |
3816 | * primary channel frequency should be taken from the 6 GHz operation | |
3817 | * information. | |
3818 | */ | |
57fa5e85 JB |
3819 | freq = ieee80211_channel_to_frequency(he_6ghz_oper->primary, |
3820 | NL80211_BAND_6GHZ); | |
3821 | he_chandef.chan = ieee80211_get_channel(sdata->local->hw.wiphy, freq); | |
3822 | ||
cb751b7a WG |
3823 | switch (u8_get_bits(he_6ghz_oper->control, |
3824 | IEEE80211_HE_6GHZ_OPER_CTRL_REG_INFO)) { | |
3825 | case IEEE80211_6GHZ_CTRL_REG_LPI_AP: | |
3826 | bss_conf->power_type = IEEE80211_REG_LPI_AP; | |
3827 | break; | |
3828 | case IEEE80211_6GHZ_CTRL_REG_SP_AP: | |
3829 | bss_conf->power_type = IEEE80211_REG_SP_AP; | |
3830 | break; | |
3831 | default: | |
3832 | bss_conf->power_type = IEEE80211_REG_UNSET_AP; | |
3833 | break; | |
3834 | } | |
3835 | ||
1e0b3b0b IP |
3836 | if (!eht_oper || |
3837 | !(eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT)) { | |
5dca295d IP |
3838 | switch (u8_get_bits(he_6ghz_oper->control, |
3839 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) { | |
3840 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ: | |
3841 | he_chandef.width = NL80211_CHAN_WIDTH_20; | |
3842 | break; | |
3843 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ: | |
3844 | he_chandef.width = NL80211_CHAN_WIDTH_40; | |
3845 | break; | |
3846 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ: | |
3847 | he_chandef.width = NL80211_CHAN_WIDTH_80; | |
3848 | break; | |
3849 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ: | |
3850 | he_chandef.width = NL80211_CHAN_WIDTH_80; | |
3851 | if (!he_6ghz_oper->ccfs1) | |
3852 | break; | |
3853 | if (abs(he_6ghz_oper->ccfs1 - he_6ghz_oper->ccfs0) == 8) { | |
3854 | if (support_160) | |
3855 | he_chandef.width = NL80211_CHAN_WIDTH_160; | |
3856 | } else { | |
3857 | if (support_80_80) | |
3858 | he_chandef.width = NL80211_CHAN_WIDTH_80P80; | |
3859 | } | |
3860 | break; | |
3861 | } | |
3862 | ||
3863 | if (he_chandef.width == NL80211_CHAN_WIDTH_160) { | |
3864 | he_chandef.center_freq1 = | |
3865 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, | |
3866 | NL80211_BAND_6GHZ); | |
3867 | } else { | |
3868 | he_chandef.center_freq1 = | |
3869 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs0, | |
3870 | NL80211_BAND_6GHZ); | |
3871 | if (support_80_80 || support_160) | |
3872 | he_chandef.center_freq2 = | |
3873 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, | |
3874 | NL80211_BAND_6GHZ); | |
3875 | } | |
3876 | } else { | |
3877 | eht_phy_cap = eht_cap->eht_cap_elem.phy_cap_info[0]; | |
3878 | support_320 = | |
3879 | eht_phy_cap & IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ; | |
3880 | ||
774e00c2 | 3881 | ieee80211_chandef_eht_oper(eht_oper, support_160, |
1e0b3b0b | 3882 | support_320, &he_chandef); |
57fa5e85 JB |
3883 | } |
3884 | ||
3885 | if (!cfg80211_chandef_valid(&he_chandef)) { | |
3886 | sdata_info(sdata, | |
3887 | "HE 6GHz operation resulted in invalid chandef: %d MHz/%d/%d MHz/%d MHz\n", | |
3888 | he_chandef.chan ? he_chandef.chan->center_freq : 0, | |
3889 | he_chandef.width, | |
3890 | he_chandef.center_freq1, | |
3891 | he_chandef.center_freq2); | |
3892 | return false; | |
3893 | } | |
3894 | ||
3895 | *chandef = he_chandef; | |
3896 | ||
8fca2b87 | 3897 | return true; |
1d00ce80 TP |
3898 | } |
3899 | ||
3900 | bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper, | |
3901 | struct cfg80211_chan_def *chandef) | |
3902 | { | |
3903 | u32 oper_freq; | |
3904 | ||
3905 | if (!oper) | |
3906 | return false; | |
3907 | ||
3908 | switch (FIELD_GET(S1G_OPER_CH_WIDTH_OPER, oper->ch_width)) { | |
3909 | case IEEE80211_S1G_CHANWIDTH_1MHZ: | |
3910 | chandef->width = NL80211_CHAN_WIDTH_1; | |
3911 | break; | |
3912 | case IEEE80211_S1G_CHANWIDTH_2MHZ: | |
3913 | chandef->width = NL80211_CHAN_WIDTH_2; | |
3914 | break; | |
3915 | case IEEE80211_S1G_CHANWIDTH_4MHZ: | |
3916 | chandef->width = NL80211_CHAN_WIDTH_4; | |
3917 | break; | |
3918 | case IEEE80211_S1G_CHANWIDTH_8MHZ: | |
3919 | chandef->width = NL80211_CHAN_WIDTH_8; | |
3920 | break; | |
3921 | case IEEE80211_S1G_CHANWIDTH_16MHZ: | |
3922 | chandef->width = NL80211_CHAN_WIDTH_16; | |
3923 | break; | |
3924 | default: | |
3925 | return false; | |
3926 | } | |
3927 | ||
3928 | oper_freq = ieee80211_channel_to_freq_khz(oper->oper_ch, | |
3929 | NL80211_BAND_S1GHZ); | |
3930 | chandef->center_freq1 = KHZ_TO_MHZ(oper_freq); | |
3931 | chandef->freq1_offset = oper_freq % 1000; | |
3932 | ||
57fa5e85 JB |
3933 | return true; |
3934 | } | |
3935 | ||
3dc05935 | 3936 | int ieee80211_parse_bitrates(enum nl80211_chan_width width, |
2103dec1 SW |
3937 | const struct ieee80211_supported_band *sband, |
3938 | const u8 *srates, int srates_len, u32 *rates) | |
3939 | { | |
3dc05935 JB |
3940 | u32 rate_flags = ieee80211_chanwidth_rate_flags(width); |
3941 | int shift = ieee80211_chanwidth_get_shift(width); | |
2103dec1 SW |
3942 | struct ieee80211_rate *br; |
3943 | int brate, rate, i, j, count = 0; | |
3944 | ||
3945 | *rates = 0; | |
3946 | ||
3947 | for (i = 0; i < srates_len; i++) { | |
3948 | rate = srates[i] & 0x7f; | |
3949 | ||
3950 | for (j = 0; j < sband->n_bitrates; j++) { | |
3951 | br = &sband->bitrates[j]; | |
3952 | if ((rate_flags & br->flags) != rate_flags) | |
3953 | continue; | |
3954 | ||
3955 | brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); | |
3956 | if (brate == rate) { | |
3957 | *rates |= BIT(j); | |
3958 | count++; | |
3959 | break; | |
3960 | } | |
3961 | } | |
3962 | } | |
3963 | return count; | |
3964 | } | |
3965 | ||
fc8a7321 | 3966 | int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, |
6b77863b | 3967 | struct sk_buff *skb, bool need_basic, |
57fbcce3 | 3968 | enum nl80211_band band) |
768db343 | 3969 | { |
768db343 AN |
3970 | struct ieee80211_local *local = sdata->local; |
3971 | struct ieee80211_supported_band *sband; | |
2103dec1 | 3972 | int rate, shift; |
768db343 | 3973 | u8 i, rates, *pos; |
fc8a7321 | 3974 | u32 basic_rates = sdata->vif.bss_conf.basic_rates; |
2103dec1 | 3975 | u32 rate_flags; |
768db343 | 3976 | |
2103dec1 SW |
3977 | shift = ieee80211_vif_get_shift(&sdata->vif); |
3978 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
6b77863b | 3979 | sband = local->hw.wiphy->bands[band]; |
2103dec1 SW |
3980 | rates = 0; |
3981 | for (i = 0; i < sband->n_bitrates; i++) { | |
3982 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) | |
3983 | continue; | |
3984 | rates++; | |
3985 | } | |
768db343 AN |
3986 | if (rates > 8) |
3987 | rates = 8; | |
3988 | ||
3989 | if (skb_tailroom(skb) < rates + 2) | |
3990 | return -ENOMEM; | |
3991 | ||
3992 | pos = skb_put(skb, rates + 2); | |
3993 | *pos++ = WLAN_EID_SUPP_RATES; | |
3994 | *pos++ = rates; | |
3995 | for (i = 0; i < rates; i++) { | |
657c3e0c | 3996 | u8 basic = 0; |
2103dec1 SW |
3997 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) |
3998 | continue; | |
3999 | ||
657c3e0c AN |
4000 | if (need_basic && basic_rates & BIT(i)) |
4001 | basic = 0x80; | |
2103dec1 SW |
4002 | rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, |
4003 | 5 * (1 << shift)); | |
4004 | *pos++ = basic | (u8) rate; | |
768db343 AN |
4005 | } |
4006 | ||
4007 | return 0; | |
4008 | } | |
4009 | ||
fc8a7321 | 4010 | int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, |
6b77863b | 4011 | struct sk_buff *skb, bool need_basic, |
57fbcce3 | 4012 | enum nl80211_band band) |
768db343 | 4013 | { |
768db343 AN |
4014 | struct ieee80211_local *local = sdata->local; |
4015 | struct ieee80211_supported_band *sband; | |
cc63ec76 | 4016 | int rate, shift; |
768db343 | 4017 | u8 i, exrates, *pos; |
fc8a7321 | 4018 | u32 basic_rates = sdata->vif.bss_conf.basic_rates; |
2103dec1 SW |
4019 | u32 rate_flags; |
4020 | ||
4021 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
4022 | shift = ieee80211_vif_get_shift(&sdata->vif); | |
768db343 | 4023 | |
6b77863b | 4024 | sband = local->hw.wiphy->bands[band]; |
2103dec1 SW |
4025 | exrates = 0; |
4026 | for (i = 0; i < sband->n_bitrates; i++) { | |
4027 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) | |
4028 | continue; | |
4029 | exrates++; | |
4030 | } | |
4031 | ||
768db343 AN |
4032 | if (exrates > 8) |
4033 | exrates -= 8; | |
4034 | else | |
4035 | exrates = 0; | |
4036 | ||
4037 | if (skb_tailroom(skb) < exrates + 2) | |
4038 | return -ENOMEM; | |
4039 | ||
4040 | if (exrates) { | |
4041 | pos = skb_put(skb, exrates + 2); | |
4042 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
4043 | *pos++ = exrates; | |
4044 | for (i = 8; i < sband->n_bitrates; i++) { | |
657c3e0c | 4045 | u8 basic = 0; |
2103dec1 SW |
4046 | if ((rate_flags & sband->bitrates[i].flags) |
4047 | != rate_flags) | |
4048 | continue; | |
657c3e0c AN |
4049 | if (need_basic && basic_rates & BIT(i)) |
4050 | basic = 0x80; | |
2103dec1 SW |
4051 | rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, |
4052 | 5 * (1 << shift)); | |
4053 | *pos++ = basic | (u8) rate; | |
768db343 AN |
4054 | } |
4055 | } | |
4056 | return 0; | |
4057 | } | |
1dae27f8 WYG |
4058 | |
4059 | int ieee80211_ave_rssi(struct ieee80211_vif *vif) | |
4060 | { | |
4061 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
1dae27f8 | 4062 | |
bfd8403a | 4063 | if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) |
be6bcabc | 4064 | return 0; |
bfd8403a JB |
4065 | |
4066 | return -ewma_beacon_signal_read(&sdata->deflink.u.mgd.ave_beacon_signal); | |
1dae27f8 | 4067 | } |
0d8a0a17 | 4068 | EXPORT_SYMBOL_GPL(ieee80211_ave_rssi); |
04ecd257 JB |
4069 | |
4070 | u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) | |
4071 | { | |
4072 | if (!mcs) | |
4073 | return 1; | |
4074 | ||
4075 | /* TODO: consider rx_highest */ | |
4076 | ||
4077 | if (mcs->rx_mask[3]) | |
4078 | return 4; | |
4079 | if (mcs->rx_mask[2]) | |
4080 | return 3; | |
4081 | if (mcs->rx_mask[1]) | |
4082 | return 2; | |
4083 | return 1; | |
4084 | } | |
f4bda337 TP |
4085 | |
4086 | /** | |
4087 | * ieee80211_calculate_rx_timestamp - calculate timestamp in frame | |
4088 | * @local: mac80211 hw info struct | |
4089 | * @status: RX status | |
4090 | * @mpdu_len: total MPDU length (including FCS) | |
4091 | * @mpdu_offset: offset into MPDU to calculate timestamp at | |
4092 | * | |
4093 | * This function calculates the RX timestamp at the given MPDU offset, taking | |
4094 | * into account what the RX timestamp was. An offset of 0 will just normalize | |
4095 | * the timestamp to TSF at beginning of MPDU reception. | |
4096 | */ | |
4097 | u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, | |
4098 | struct ieee80211_rx_status *status, | |
4099 | unsigned int mpdu_len, | |
4100 | unsigned int mpdu_offset) | |
4101 | { | |
4102 | u64 ts = status->mactime; | |
4103 | struct rate_info ri; | |
4104 | u16 rate; | |
da388233 | 4105 | u8 n_ltf; |
f4bda337 TP |
4106 | |
4107 | if (WARN_ON(!ieee80211_have_rx_timestamp(status))) | |
4108 | return 0; | |
4109 | ||
4110 | memset(&ri, 0, sizeof(ri)); | |
4111 | ||
35f4962c JB |
4112 | ri.bw = status->bw; |
4113 | ||
f4bda337 | 4114 | /* Fill cfg80211 rate info */ |
da6a4352 | 4115 | switch (status->encoding) { |
da388233 AS |
4116 | case RX_ENC_HE: |
4117 | ri.flags |= RATE_INFO_FLAGS_HE_MCS; | |
4118 | ri.mcs = status->rate_idx; | |
4119 | ri.nss = status->nss; | |
4120 | ri.he_ru_alloc = status->he_ru; | |
4121 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) | |
4122 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; | |
4123 | ||
4124 | /* | |
4125 | * See P802.11ax_D6.0, section 27.3.4 for | |
4126 | * VHT PPDU format. | |
4127 | */ | |
4128 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
4129 | mpdu_offset += 2; | |
4130 | ts += 36; | |
4131 | ||
4132 | /* | |
4133 | * TODO: | |
4134 | * For HE MU PPDU, add the HE-SIG-B. | |
4135 | * For HE ER PPDU, add 8us for the HE-SIG-A. | |
4136 | * For HE TB PPDU, add 4us for the HE-STF. | |
4137 | * Add the HE-LTF durations - variable. | |
4138 | */ | |
4139 | } | |
4140 | ||
4141 | break; | |
da6a4352 | 4142 | case RX_ENC_HT: |
f4bda337 TP |
4143 | ri.mcs = status->rate_idx; |
4144 | ri.flags |= RATE_INFO_FLAGS_MCS; | |
7fdd69c5 | 4145 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) |
f4bda337 | 4146 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; |
da388233 AS |
4147 | |
4148 | /* | |
4149 | * See P802.11REVmd_D3.0, section 19.3.2 for | |
4150 | * HT PPDU format. | |
4151 | */ | |
4152 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
4153 | mpdu_offset += 2; | |
4154 | if (status->enc_flags & RX_ENC_FLAG_HT_GF) | |
4155 | ts += 24; | |
4156 | else | |
4157 | ts += 32; | |
4158 | ||
4159 | /* | |
4160 | * Add Data HT-LTFs per streams | |
4161 | * TODO: add Extension HT-LTFs, 4us per LTF | |
4162 | */ | |
4163 | n_ltf = ((ri.mcs >> 3) & 3) + 1; | |
4164 | n_ltf = n_ltf == 3 ? 4 : n_ltf; | |
4165 | ts += n_ltf * 4; | |
4166 | } | |
4167 | ||
da6a4352 JB |
4168 | break; |
4169 | case RX_ENC_VHT: | |
5614618e JB |
4170 | ri.flags |= RATE_INFO_FLAGS_VHT_MCS; |
4171 | ri.mcs = status->rate_idx; | |
8613c948 | 4172 | ri.nss = status->nss; |
7fdd69c5 | 4173 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) |
5614618e | 4174 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; |
da388233 AS |
4175 | |
4176 | /* | |
4177 | * See P802.11REVmd_D3.0, section 21.3.2 for | |
4178 | * VHT PPDU format. | |
4179 | */ | |
4180 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
4181 | mpdu_offset += 2; | |
4182 | ts += 36; | |
4183 | ||
4184 | /* | |
4185 | * Add VHT-LTFs per streams | |
4186 | */ | |
4187 | n_ltf = (ri.nss != 1) && (ri.nss % 2) ? | |
4188 | ri.nss + 1 : ri.nss; | |
4189 | ts += 4 * n_ltf; | |
4190 | } | |
4191 | ||
da6a4352 JB |
4192 | break; |
4193 | default: | |
4194 | WARN_ON(1); | |
fc0561dc | 4195 | fallthrough; |
da6a4352 | 4196 | case RX_ENC_LEGACY: { |
f4bda337 | 4197 | struct ieee80211_supported_band *sband; |
2103dec1 SW |
4198 | int shift = 0; |
4199 | int bitrate; | |
4200 | ||
da6a4352 JB |
4201 | switch (status->bw) { |
4202 | case RATE_INFO_BW_10: | |
2103dec1 | 4203 | shift = 1; |
da6a4352 JB |
4204 | break; |
4205 | case RATE_INFO_BW_5: | |
2103dec1 | 4206 | shift = 2; |
da6a4352 | 4207 | break; |
b51f3bee | 4208 | } |
f4bda337 TP |
4209 | |
4210 | sband = local->hw.wiphy->bands[status->band]; | |
2103dec1 SW |
4211 | bitrate = sband->bitrates[status->rate_idx].bitrate; |
4212 | ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); | |
f4a0f0c5 JB |
4213 | |
4214 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
57fbcce3 | 4215 | if (status->band == NL80211_BAND_5GHZ) { |
f4a0f0c5 JB |
4216 | ts += 20 << shift; |
4217 | mpdu_offset += 2; | |
7fdd69c5 | 4218 | } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) { |
f4a0f0c5 JB |
4219 | ts += 96; |
4220 | } else { | |
4221 | ts += 192; | |
4222 | } | |
4223 | } | |
da6a4352 JB |
4224 | break; |
4225 | } | |
f4bda337 TP |
4226 | } |
4227 | ||
4228 | rate = cfg80211_calculate_bitrate(&ri); | |
d86aa4f8 | 4229 | if (WARN_ONCE(!rate, |
f980ebc0 SS |
4230 | "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n", |
4231 | (unsigned long long)status->flag, status->rate_idx, | |
8613c948 | 4232 | status->nss)) |
d86aa4f8 | 4233 | return 0; |
f4bda337 TP |
4234 | |
4235 | /* rewind from end of MPDU */ | |
4236 | if (status->flag & RX_FLAG_MACTIME_END) | |
4237 | ts -= mpdu_len * 8 * 10 / rate; | |
4238 | ||
4239 | ts += mpdu_offset * 8 * 10 / rate; | |
4240 | ||
4241 | return ts; | |
4242 | } | |
164eb02d SW |
4243 | |
4244 | void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) | |
4245 | { | |
4246 | struct ieee80211_sub_if_data *sdata; | |
d2859df5 | 4247 | struct cfg80211_chan_def chandef; |
164eb02d | 4248 | |
4a199068 | 4249 | /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */ |
a05829a7 | 4250 | lockdep_assert_wiphy(local->hw.wiphy); |
4a199068 | 4251 | |
34a3740d | 4252 | mutex_lock(&local->mtx); |
164eb02d | 4253 | list_for_each_entry(sdata, &local->interfaces, list) { |
34a3740d JB |
4254 | /* it might be waiting for the local->mtx, but then |
4255 | * by the time it gets it, sdata->wdev.cac_started | |
4256 | * will no longer be true | |
4257 | */ | |
bfd8403a | 4258 | cancel_delayed_work(&sdata->deflink.dfs_cac_timer_work); |
164eb02d SW |
4259 | |
4260 | if (sdata->wdev.cac_started) { | |
d2859df5 | 4261 | chandef = sdata->vif.bss_conf.chandef; |
d8675a63 | 4262 | ieee80211_link_release_channel(&sdata->deflink); |
164eb02d | 4263 | cfg80211_cac_event(sdata->dev, |
d2859df5 | 4264 | &chandef, |
164eb02d SW |
4265 | NL80211_RADAR_CAC_ABORTED, |
4266 | GFP_KERNEL); | |
4267 | } | |
4268 | } | |
34a3740d | 4269 | mutex_unlock(&local->mtx); |
164eb02d SW |
4270 | } |
4271 | ||
4272 | void ieee80211_dfs_radar_detected_work(struct work_struct *work) | |
4273 | { | |
4274 | struct ieee80211_local *local = | |
4275 | container_of(work, struct ieee80211_local, radar_detected_work); | |
84a3d1c9 | 4276 | struct cfg80211_chan_def chandef = local->hw.conf.chandef; |
486cf4c0 MK |
4277 | struct ieee80211_chanctx *ctx; |
4278 | int num_chanctx = 0; | |
4279 | ||
4280 | mutex_lock(&local->chanctx_mtx); | |
4281 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
4282 | if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER) | |
4283 | continue; | |
4284 | ||
4285 | num_chanctx++; | |
4286 | chandef = ctx->conf.def; | |
4287 | } | |
4288 | mutex_unlock(&local->chanctx_mtx); | |
164eb02d | 4289 | |
a05829a7 | 4290 | wiphy_lock(local->hw.wiphy); |
164eb02d | 4291 | ieee80211_dfs_cac_cancel(local); |
a05829a7 | 4292 | wiphy_unlock(local->hw.wiphy); |
164eb02d | 4293 | |
486cf4c0 MK |
4294 | if (num_chanctx > 1) |
4295 | /* XXX: multi-channel is not supported yet */ | |
164eb02d | 4296 | WARN_ON(1); |
84a3d1c9 | 4297 | else |
164eb02d | 4298 | cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL); |
164eb02d SW |
4299 | } |
4300 | ||
4301 | void ieee80211_radar_detected(struct ieee80211_hw *hw) | |
4302 | { | |
4303 | struct ieee80211_local *local = hw_to_local(hw); | |
4304 | ||
4305 | trace_api_radar_detected(local); | |
4306 | ||
4a199068 | 4307 | schedule_work(&local->radar_detected_work); |
164eb02d SW |
4308 | } |
4309 | EXPORT_SYMBOL(ieee80211_radar_detected); | |
e6b7cde4 | 4310 | |
ba323e29 | 4311 | ieee80211_conn_flags_t ieee80211_chandef_downgrade(struct cfg80211_chan_def *c) |
e6b7cde4 | 4312 | { |
ba323e29 | 4313 | ieee80211_conn_flags_t ret; |
e6b7cde4 SW |
4314 | int tmp; |
4315 | ||
4316 | switch (c->width) { | |
4317 | case NL80211_CHAN_WIDTH_20: | |
4318 | c->width = NL80211_CHAN_WIDTH_20_NOHT; | |
ba323e29 | 4319 | ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT; |
e6b7cde4 SW |
4320 | break; |
4321 | case NL80211_CHAN_WIDTH_40: | |
4322 | c->width = NL80211_CHAN_WIDTH_20; | |
4323 | c->center_freq1 = c->chan->center_freq; | |
ba323e29 JB |
4324 | ret = IEEE80211_CONN_DISABLE_40MHZ | |
4325 | IEEE80211_CONN_DISABLE_VHT; | |
e6b7cde4 SW |
4326 | break; |
4327 | case NL80211_CHAN_WIDTH_80: | |
4328 | tmp = (30 + c->chan->center_freq - c->center_freq1)/20; | |
4329 | /* n_P40 */ | |
4330 | tmp /= 2; | |
4331 | /* freq_P40 */ | |
4332 | c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; | |
4333 | c->width = NL80211_CHAN_WIDTH_40; | |
ba323e29 | 4334 | ret = IEEE80211_CONN_DISABLE_VHT; |
e6b7cde4 SW |
4335 | break; |
4336 | case NL80211_CHAN_WIDTH_80P80: | |
4337 | c->center_freq2 = 0; | |
4338 | c->width = NL80211_CHAN_WIDTH_80; | |
ba323e29 JB |
4339 | ret = IEEE80211_CONN_DISABLE_80P80MHZ | |
4340 | IEEE80211_CONN_DISABLE_160MHZ; | |
e6b7cde4 SW |
4341 | break; |
4342 | case NL80211_CHAN_WIDTH_160: | |
4343 | /* n_P20 */ | |
4344 | tmp = (70 + c->chan->center_freq - c->center_freq1)/20; | |
4345 | /* n_P80 */ | |
4346 | tmp /= 4; | |
4347 | c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; | |
4348 | c->width = NL80211_CHAN_WIDTH_80; | |
ba323e29 JB |
4349 | ret = IEEE80211_CONN_DISABLE_80P80MHZ | |
4350 | IEEE80211_CONN_DISABLE_160MHZ; | |
e6b7cde4 | 4351 | break; |
5dca295d IP |
4352 | case NL80211_CHAN_WIDTH_320: |
4353 | /* n_P20 */ | |
4354 | tmp = (150 + c->chan->center_freq - c->center_freq1) / 20; | |
4355 | /* n_P160 */ | |
68608f99 | 4356 | tmp /= 8; |
5dca295d IP |
4357 | c->center_freq1 = c->center_freq1 - 80 + 160 * tmp; |
4358 | c->width = NL80211_CHAN_WIDTH_160; | |
ba323e29 | 4359 | ret = IEEE80211_CONN_DISABLE_320MHZ; |
5dca295d | 4360 | break; |
e6b7cde4 SW |
4361 | default: |
4362 | case NL80211_CHAN_WIDTH_20_NOHT: | |
4363 | WARN_ON_ONCE(1); | |
4364 | c->width = NL80211_CHAN_WIDTH_20_NOHT; | |
ba323e29 | 4365 | ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT; |
e6b7cde4 | 4366 | break; |
df78a0c0 TP |
4367 | case NL80211_CHAN_WIDTH_1: |
4368 | case NL80211_CHAN_WIDTH_2: | |
4369 | case NL80211_CHAN_WIDTH_4: | |
4370 | case NL80211_CHAN_WIDTH_8: | |
4371 | case NL80211_CHAN_WIDTH_16: | |
e6b7cde4 SW |
4372 | case NL80211_CHAN_WIDTH_5: |
4373 | case NL80211_CHAN_WIDTH_10: | |
4374 | WARN_ON_ONCE(1); | |
4375 | /* keep c->width */ | |
ba323e29 | 4376 | ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_VHT; |
e6b7cde4 SW |
4377 | break; |
4378 | } | |
4379 | ||
4380 | WARN_ON_ONCE(!cfg80211_chandef_valid(c)); | |
4381 | ||
4382 | return ret; | |
4383 | } | |
687da132 EG |
4384 | |
4385 | /* | |
4386 | * Returns true if smps_mode_new is strictly more restrictive than | |
4387 | * smps_mode_old. | |
4388 | */ | |
4389 | bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, | |
4390 | enum ieee80211_smps_mode smps_mode_new) | |
4391 | { | |
4392 | if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC || | |
4393 | smps_mode_new == IEEE80211_SMPS_AUTOMATIC)) | |
4394 | return false; | |
4395 | ||
4396 | switch (smps_mode_old) { | |
4397 | case IEEE80211_SMPS_STATIC: | |
4398 | return false; | |
4399 | case IEEE80211_SMPS_DYNAMIC: | |
4400 | return smps_mode_new == IEEE80211_SMPS_STATIC; | |
4401 | case IEEE80211_SMPS_OFF: | |
4402 | return smps_mode_new != IEEE80211_SMPS_OFF; | |
4403 | default: | |
4404 | WARN_ON(1); | |
4405 | } | |
4406 | ||
4407 | return false; | |
4408 | } | |
c6da674a CYY |
4409 | |
4410 | int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, | |
4411 | struct cfg80211_csa_settings *csa_settings) | |
4412 | { | |
4413 | struct sk_buff *skb; | |
4414 | struct ieee80211_mgmt *mgmt; | |
4415 | struct ieee80211_local *local = sdata->local; | |
4416 | int freq; | |
4c121fd6 JB |
4417 | int hdr_len = offsetofend(struct ieee80211_mgmt, |
4418 | u.action.u.chan_switch); | |
c6da674a CYY |
4419 | u8 *pos; |
4420 | ||
4421 | if (sdata->vif.type != NL80211_IFTYPE_ADHOC && | |
4422 | sdata->vif.type != NL80211_IFTYPE_MESH_POINT) | |
4423 | return -EOPNOTSUPP; | |
4424 | ||
4425 | skb = dev_alloc_skb(local->tx_headroom + hdr_len + | |
4426 | 5 + /* channel switch announcement element */ | |
4427 | 3 + /* secondary channel offset element */ | |
75d627d5 | 4428 | 5 + /* wide bandwidth channel switch announcement */ |
c6da674a CYY |
4429 | 8); /* mesh channel switch parameters element */ |
4430 | if (!skb) | |
4431 | return -ENOMEM; | |
4432 | ||
4433 | skb_reserve(skb, local->tx_headroom); | |
b080db58 | 4434 | mgmt = skb_put_zero(skb, hdr_len); |
c6da674a CYY |
4435 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
4436 | IEEE80211_STYPE_ACTION); | |
4437 | ||
4438 | eth_broadcast_addr(mgmt->da); | |
4439 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); | |
4440 | if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
4441 | memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); | |
4442 | } else { | |
4443 | struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; | |
4444 | memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); | |
4445 | } | |
4446 | mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; | |
4447 | mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; | |
4448 | pos = skb_put(skb, 5); | |
4449 | *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ | |
4450 | *pos++ = 3; /* IE length */ | |
4451 | *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ | |
4452 | freq = csa_settings->chandef.chan->center_freq; | |
4453 | *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ | |
4454 | *pos++ = csa_settings->count; /* count */ | |
4455 | ||
4456 | if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { | |
4457 | enum nl80211_channel_type ch_type; | |
4458 | ||
4459 | skb_put(skb, 3); | |
4460 | *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ | |
4461 | *pos++ = 1; /* IE length */ | |
4462 | ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); | |
4463 | if (ch_type == NL80211_CHAN_HT40PLUS) | |
4464 | *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
4465 | else | |
4466 | *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
4467 | } | |
4468 | ||
4469 | if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
4470 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; | |
c6da674a CYY |
4471 | |
4472 | skb_put(skb, 8); | |
4473 | *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */ | |
4474 | *pos++ = 6; /* IE length */ | |
4475 | *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */ | |
4476 | *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */ | |
4477 | *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR; | |
4478 | *pos++ |= csa_settings->block_tx ? | |
4479 | WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00; | |
4480 | put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */ | |
4481 | pos += 2; | |
ca91dc97 | 4482 | put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */ |
c6da674a | 4483 | pos += 2; |
c6da674a CYY |
4484 | } |
4485 | ||
75d627d5 SW |
4486 | if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_80 || |
4487 | csa_settings->chandef.width == NL80211_CHAN_WIDTH_80P80 || | |
4488 | csa_settings->chandef.width == NL80211_CHAN_WIDTH_160) { | |
4489 | skb_put(skb, 5); | |
4490 | ieee80211_ie_build_wide_bw_cs(pos, &csa_settings->chandef); | |
4491 | } | |
4492 | ||
c6da674a CYY |
4493 | ieee80211_tx_skb(sdata, skb); |
4494 | return 0; | |
4495 | } | |
2475b1cc | 4496 | |
a7022e65 FF |
4497 | static bool |
4498 | ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i) | |
4499 | { | |
4500 | s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1); | |
4501 | int skip; | |
4502 | ||
4503 | if (end > 0) | |
4504 | return false; | |
4505 | ||
519ee691 JD |
4506 | /* One shot NOA */ |
4507 | if (data->count[i] == 1) | |
4508 | return false; | |
4509 | ||
4510 | if (data->desc[i].interval == 0) | |
4511 | return false; | |
4512 | ||
a7022e65 FF |
4513 | /* End time is in the past, check for repetitions */ |
4514 | skip = DIV_ROUND_UP(-end, data->desc[i].interval); | |
4515 | if (data->count[i] < 255) { | |
4516 | if (data->count[i] <= skip) { | |
4517 | data->count[i] = 0; | |
4518 | return false; | |
4519 | } | |
4520 | ||
4521 | data->count[i] -= skip; | |
4522 | } | |
4523 | ||
4524 | data->desc[i].start += skip * data->desc[i].interval; | |
4525 | ||
4526 | return true; | |
4527 | } | |
4528 | ||
4529 | static bool | |
4530 | ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf, | |
4531 | s32 *offset) | |
4532 | { | |
4533 | bool ret = false; | |
4534 | int i; | |
4535 | ||
4536 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4537 | s32 cur; | |
4538 | ||
4539 | if (!data->count[i]) | |
4540 | continue; | |
4541 | ||
4542 | if (ieee80211_extend_noa_desc(data, tsf + *offset, i)) | |
4543 | ret = true; | |
4544 | ||
4545 | cur = data->desc[i].start - tsf; | |
4546 | if (cur > *offset) | |
4547 | continue; | |
4548 | ||
4549 | cur = data->desc[i].start + data->desc[i].duration - tsf; | |
4550 | if (cur > *offset) | |
4551 | *offset = cur; | |
4552 | } | |
4553 | ||
4554 | return ret; | |
4555 | } | |
4556 | ||
4557 | static u32 | |
4558 | ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf) | |
4559 | { | |
4560 | s32 offset = 0; | |
4561 | int tries = 0; | |
4562 | /* | |
4563 | * arbitrary limit, used to avoid infinite loops when combined NoA | |
4564 | * descriptors cover the full time period. | |
4565 | */ | |
4566 | int max_tries = 5; | |
4567 | ||
4568 | ieee80211_extend_absent_time(data, tsf, &offset); | |
4569 | do { | |
4570 | if (!ieee80211_extend_absent_time(data, tsf, &offset)) | |
4571 | break; | |
4572 | ||
4573 | tries++; | |
4574 | } while (tries < max_tries); | |
4575 | ||
4576 | return offset; | |
4577 | } | |
4578 | ||
4579 | void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf) | |
4580 | { | |
4581 | u32 next_offset = BIT(31) - 1; | |
4582 | int i; | |
4583 | ||
4584 | data->absent = 0; | |
4585 | data->has_next_tsf = false; | |
4586 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4587 | s32 start; | |
4588 | ||
4589 | if (!data->count[i]) | |
4590 | continue; | |
4591 | ||
4592 | ieee80211_extend_noa_desc(data, tsf, i); | |
4593 | start = data->desc[i].start - tsf; | |
4594 | if (start <= 0) | |
4595 | data->absent |= BIT(i); | |
4596 | ||
4597 | if (next_offset > start) | |
4598 | next_offset = start; | |
4599 | ||
4600 | data->has_next_tsf = true; | |
4601 | } | |
4602 | ||
4603 | if (data->absent) | |
4604 | next_offset = ieee80211_get_noa_absent_time(data, tsf); | |
4605 | ||
4606 | data->next_tsf = tsf + next_offset; | |
4607 | } | |
4608 | EXPORT_SYMBOL(ieee80211_update_p2p_noa); | |
4609 | ||
4610 | int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr, | |
4611 | struct ieee80211_noa_data *data, u32 tsf) | |
4612 | { | |
4613 | int ret = 0; | |
4614 | int i; | |
4615 | ||
4616 | memset(data, 0, sizeof(*data)); | |
4617 | ||
4618 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4619 | const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i]; | |
4620 | ||
4621 | if (!desc->count || !desc->duration) | |
4622 | continue; | |
4623 | ||
4624 | data->count[i] = desc->count; | |
4625 | data->desc[i].start = le32_to_cpu(desc->start_time); | |
4626 | data->desc[i].duration = le32_to_cpu(desc->duration); | |
4627 | data->desc[i].interval = le32_to_cpu(desc->interval); | |
4628 | ||
4629 | if (data->count[i] > 1 && | |
4630 | data->desc[i].interval < data->desc[i].duration) | |
4631 | continue; | |
4632 | ||
4633 | ieee80211_extend_noa_desc(data, tsf, i); | |
4634 | ret++; | |
4635 | } | |
4636 | ||
4637 | if (ret) | |
4638 | ieee80211_update_p2p_noa(data, tsf); | |
4639 | ||
4640 | return ret; | |
4641 | } | |
4642 | EXPORT_SYMBOL(ieee80211_parse_p2p_noa); | |
057d5f4b TP |
4643 | |
4644 | void ieee80211_recalc_dtim(struct ieee80211_local *local, | |
4645 | struct ieee80211_sub_if_data *sdata) | |
4646 | { | |
4647 | u64 tsf = drv_get_tsf(local, sdata); | |
4648 | u64 dtim_count = 0; | |
4649 | u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; | |
4650 | u8 dtim_period = sdata->vif.bss_conf.dtim_period; | |
4651 | struct ps_data *ps; | |
4652 | u8 bcns_from_dtim; | |
4653 | ||
4654 | if (tsf == -1ULL || !beacon_int || !dtim_period) | |
4655 | return; | |
4656 | ||
4657 | if (sdata->vif.type == NL80211_IFTYPE_AP || | |
4658 | sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { | |
4659 | if (!sdata->bss) | |
4660 | return; | |
4661 | ||
4662 | ps = &sdata->bss->ps; | |
4663 | } else if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
4664 | ps = &sdata->u.mesh.ps; | |
4665 | } else { | |
4666 | return; | |
4667 | } | |
4668 | ||
4669 | /* | |
4670 | * actually finds last dtim_count, mac80211 will update in | |
4671 | * __beacon_add_tim(). | |
4672 | * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period | |
4673 | */ | |
4674 | do_div(tsf, beacon_int); | |
4675 | bcns_from_dtim = do_div(tsf, dtim_period); | |
4676 | /* just had a DTIM */ | |
4677 | if (!bcns_from_dtim) | |
4678 | dtim_count = 0; | |
4679 | else | |
4680 | dtim_count = dtim_period - bcns_from_dtim; | |
4681 | ||
4682 | ps->dtim_count = dtim_count; | |
4683 | } | |
73de86a3 | 4684 | |
71e6195e MK |
4685 | static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local, |
4686 | struct ieee80211_chanctx *ctx) | |
4687 | { | |
b4f85443 | 4688 | struct ieee80211_link_data *link; |
71e6195e MK |
4689 | u8 radar_detect = 0; |
4690 | ||
4691 | lockdep_assert_held(&local->chanctx_mtx); | |
4692 | ||
4693 | if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)) | |
4694 | return 0; | |
4695 | ||
b4f85443 JB |
4696 | list_for_each_entry(link, &ctx->reserved_links, reserved_chanctx_list) |
4697 | if (link->reserved_radar_required) | |
4698 | radar_detect |= BIT(link->reserved_chandef.width); | |
71e6195e MK |
4699 | |
4700 | /* | |
4701 | * An in-place reservation context should not have any assigned vifs | |
4702 | * until it replaces the other context. | |
4703 | */ | |
4704 | WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER && | |
b4f85443 JB |
4705 | !list_empty(&ctx->assigned_links)); |
4706 | ||
4707 | list_for_each_entry(link, &ctx->assigned_links, assigned_chanctx_list) { | |
b4f85443 JB |
4708 | if (!link->radar_required) |
4709 | continue; | |
4710 | ||
4711 | radar_detect |= | |
d8675a63 | 4712 | BIT(link->conf->chandef.width); |
b4f85443 | 4713 | } |
71e6195e MK |
4714 | |
4715 | return radar_detect; | |
4716 | } | |
4717 | ||
73de86a3 LC |
4718 | int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, |
4719 | const struct cfg80211_chan_def *chandef, | |
4720 | enum ieee80211_chanctx_mode chanmode, | |
4721 | u8 radar_detect) | |
4722 | { | |
4723 | struct ieee80211_local *local = sdata->local; | |
4724 | struct ieee80211_sub_if_data *sdata_iter; | |
4725 | enum nl80211_iftype iftype = sdata->wdev.iftype; | |
73de86a3 | 4726 | struct ieee80211_chanctx *ctx; |
73de86a3 | 4727 | int total = 1; |
e227300c PK |
4728 | struct iface_combination_params params = { |
4729 | .radar_detect = radar_detect, | |
4730 | }; | |
73de86a3 LC |
4731 | |
4732 | lockdep_assert_held(&local->chanctx_mtx); | |
4733 | ||
4734 | if (WARN_ON(hweight32(radar_detect) > 1)) | |
4735 | return -EINVAL; | |
4736 | ||
b6a55015 LC |
4737 | if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED && |
4738 | !chandef->chan)) | |
73de86a3 LC |
4739 | return -EINVAL; |
4740 | ||
4741 | if (WARN_ON(iftype >= NUM_NL80211_IFTYPES)) | |
4742 | return -EINVAL; | |
4743 | ||
ac668afe JB |
4744 | if (sdata->vif.type == NL80211_IFTYPE_AP || |
4745 | sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { | |
4746 | /* | |
4747 | * always passing this is harmless, since it'll be the | |
4748 | * same value that cfg80211 finds if it finds the same | |
4749 | * interface ... and that's always allowed | |
4750 | */ | |
4751 | params.new_beacon_int = sdata->vif.bss_conf.beacon_int; | |
4752 | } | |
4753 | ||
73de86a3 | 4754 | /* Always allow software iftypes */ |
e6f40511 | 4755 | if (cfg80211_iftype_allowed(local->hw.wiphy, iftype, 0, 1)) { |
73de86a3 LC |
4756 | if (radar_detect) |
4757 | return -EINVAL; | |
4758 | return 0; | |
4759 | } | |
4760 | ||
e227300c PK |
4761 | if (chandef) |
4762 | params.num_different_channels = 1; | |
73de86a3 LC |
4763 | |
4764 | if (iftype != NL80211_IFTYPE_UNSPECIFIED) | |
e227300c | 4765 | params.iftype_num[iftype] = 1; |
73de86a3 LC |
4766 | |
4767 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
5bcae31d MK |
4768 | if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) |
4769 | continue; | |
e227300c PK |
4770 | params.radar_detect |= |
4771 | ieee80211_chanctx_radar_detect(local, ctx); | |
73de86a3 | 4772 | if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) { |
e227300c | 4773 | params.num_different_channels++; |
73de86a3 LC |
4774 | continue; |
4775 | } | |
b6a55015 | 4776 | if (chandef && chanmode == IEEE80211_CHANCTX_SHARED && |
73de86a3 LC |
4777 | cfg80211_chandef_compatible(chandef, |
4778 | &ctx->conf.def)) | |
4779 | continue; | |
e227300c | 4780 | params.num_different_channels++; |
73de86a3 LC |
4781 | } |
4782 | ||
4783 | list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { | |
4784 | struct wireless_dev *wdev_iter; | |
4785 | ||
4786 | wdev_iter = &sdata_iter->wdev; | |
4787 | ||
4788 | if (sdata_iter == sdata || | |
0f611d28 | 4789 | !ieee80211_sdata_running(sdata_iter) || |
e6f40511 MP |
4790 | cfg80211_iftype_allowed(local->hw.wiphy, |
4791 | wdev_iter->iftype, 0, 1)) | |
73de86a3 LC |
4792 | continue; |
4793 | ||
e227300c | 4794 | params.iftype_num[wdev_iter->iftype]++; |
73de86a3 LC |
4795 | total++; |
4796 | } | |
4797 | ||
e227300c | 4798 | if (total == 1 && !params.radar_detect) |
73de86a3 LC |
4799 | return 0; |
4800 | ||
e227300c | 4801 | return cfg80211_check_combinations(local->hw.wiphy, ¶ms); |
73de86a3 | 4802 | } |
6fa001bc MK |
4803 | |
4804 | static void | |
4805 | ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c, | |
4806 | void *data) | |
4807 | { | |
4808 | u32 *max_num_different_channels = data; | |
4809 | ||
4810 | *max_num_different_channels = max(*max_num_different_channels, | |
4811 | c->num_different_channels); | |
4812 | } | |
4813 | ||
4814 | int ieee80211_max_num_channels(struct ieee80211_local *local) | |
4815 | { | |
4816 | struct ieee80211_sub_if_data *sdata; | |
6fa001bc | 4817 | struct ieee80211_chanctx *ctx; |
6fa001bc MK |
4818 | u32 max_num_different_channels = 1; |
4819 | int err; | |
e227300c | 4820 | struct iface_combination_params params = {0}; |
6fa001bc MK |
4821 | |
4822 | lockdep_assert_held(&local->chanctx_mtx); | |
4823 | ||
4824 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
5bcae31d MK |
4825 | if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) |
4826 | continue; | |
4827 | ||
e227300c | 4828 | params.num_different_channels++; |
6fa001bc | 4829 | |
e227300c PK |
4830 | params.radar_detect |= |
4831 | ieee80211_chanctx_radar_detect(local, ctx); | |
6fa001bc MK |
4832 | } |
4833 | ||
4834 | list_for_each_entry_rcu(sdata, &local->interfaces, list) | |
e227300c | 4835 | params.iftype_num[sdata->wdev.iftype]++; |
6fa001bc | 4836 | |
e227300c PK |
4837 | err = cfg80211_iter_combinations(local->hw.wiphy, ¶ms, |
4838 | ieee80211_iter_max_chans, | |
6fa001bc MK |
4839 | &max_num_different_channels); |
4840 | if (err < 0) | |
4841 | return err; | |
4842 | ||
4843 | return max_num_different_channels; | |
7957c6c8 TP |
4844 | } |
4845 | ||
4846 | void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, | |
4847 | struct ieee80211_sta_s1g_cap *caps, | |
4848 | struct sk_buff *skb) | |
4849 | { | |
4850 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
4851 | struct ieee80211_s1g_cap s1g_capab; | |
4852 | u8 *pos; | |
4853 | int i; | |
4854 | ||
4855 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
4856 | return; | |
4857 | ||
4858 | if (!caps->s1g) | |
4859 | return; | |
4860 | ||
4861 | memcpy(s1g_capab.capab_info, caps->cap, sizeof(caps->cap)); | |
4862 | memcpy(s1g_capab.supp_mcs_nss, caps->nss_mcs, sizeof(caps->nss_mcs)); | |
4863 | ||
4864 | /* override the capability info */ | |
4865 | for (i = 0; i < sizeof(ifmgd->s1g_capa.capab_info); i++) { | |
4866 | u8 mask = ifmgd->s1g_capa_mask.capab_info[i]; | |
4867 | ||
4868 | s1g_capab.capab_info[i] &= ~mask; | |
4869 | s1g_capab.capab_info[i] |= ifmgd->s1g_capa.capab_info[i] & mask; | |
4870 | } | |
4871 | ||
4872 | /* then MCS and NSS set */ | |
4873 | for (i = 0; i < sizeof(ifmgd->s1g_capa.supp_mcs_nss); i++) { | |
4874 | u8 mask = ifmgd->s1g_capa_mask.supp_mcs_nss[i]; | |
4875 | ||
4876 | s1g_capab.supp_mcs_nss[i] &= ~mask; | |
4877 | s1g_capab.supp_mcs_nss[i] |= | |
4878 | ifmgd->s1g_capa.supp_mcs_nss[i] & mask; | |
4879 | } | |
4880 | ||
4881 | pos = skb_put(skb, 2 + sizeof(s1g_capab)); | |
4882 | *pos++ = WLAN_EID_S1G_CAPABILITIES; | |
4883 | *pos++ = sizeof(s1g_capab); | |
4884 | ||
4885 | memcpy(pos, &s1g_capab, sizeof(s1g_capab)); | |
6fa001bc | 4886 | } |
40b861a0 | 4887 | |
1d00ce80 TP |
4888 | void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, |
4889 | struct sk_buff *skb) | |
4890 | { | |
4891 | u8 *pos = skb_put(skb, 3); | |
4892 | ||
4893 | *pos++ = WLAN_EID_AID_REQUEST; | |
4894 | *pos++ = 1; | |
4895 | *pos++ = 0; | |
4896 | } | |
4897 | ||
40b861a0 AN |
4898 | u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo) |
4899 | { | |
4900 | *buf++ = WLAN_EID_VENDOR_SPECIFIC; | |
4901 | *buf++ = 7; /* len */ | |
4902 | *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */ | |
4903 | *buf++ = 0x50; | |
4904 | *buf++ = 0xf2; | |
4905 | *buf++ = 2; /* WME */ | |
4906 | *buf++ = 0; /* WME info */ | |
4907 | *buf++ = 1; /* WME ver */ | |
4908 | *buf++ = qosinfo; /* U-APSD no in use */ | |
4909 | ||
4910 | return buf; | |
4911 | } | |
ba8c3d6f | 4912 | |
f2ac7e30 MK |
4913 | void ieee80211_txq_get_depth(struct ieee80211_txq *txq, |
4914 | unsigned long *frame_cnt, | |
4915 | unsigned long *byte_cnt) | |
4916 | { | |
4917 | struct txq_info *txqi = to_txq_info(txq); | |
bb42f2d1 THJ |
4918 | u32 frag_cnt = 0, frag_bytes = 0; |
4919 | struct sk_buff *skb; | |
4920 | ||
4921 | skb_queue_walk(&txqi->frags, skb) { | |
4922 | frag_cnt++; | |
4923 | frag_bytes += skb->len; | |
4924 | } | |
f2ac7e30 MK |
4925 | |
4926 | if (frame_cnt) | |
bb42f2d1 | 4927 | *frame_cnt = txqi->tin.backlog_packets + frag_cnt; |
f2ac7e30 MK |
4928 | |
4929 | if (byte_cnt) | |
bb42f2d1 | 4930 | *byte_cnt = txqi->tin.backlog_bytes + frag_bytes; |
f2ac7e30 MK |
4931 | } |
4932 | EXPORT_SYMBOL(ieee80211_txq_get_depth); | |
f438ceb8 EG |
4933 | |
4934 | const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = { | |
4935 | IEEE80211_WMM_IE_STA_QOSINFO_AC_VO, | |
4936 | IEEE80211_WMM_IE_STA_QOSINFO_AC_VI, | |
4937 | IEEE80211_WMM_IE_STA_QOSINFO_AC_BE, | |
4938 | IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | |
4939 | }; | |
05d10957 TP |
4940 | |
4941 | u16 ieee80211_encode_usf(int listen_interval) | |
4942 | { | |
4943 | static const int listen_int_usf[] = { 1, 10, 1000, 10000 }; | |
4944 | u16 ui, usf = 0; | |
4945 | ||
4946 | /* find greatest USF */ | |
4947 | while (usf < IEEE80211_MAX_USF) { | |
4948 | if (listen_interval % listen_int_usf[usf + 1]) | |
4949 | break; | |
4950 | usf += 1; | |
4951 | } | |
4952 | ui = listen_interval / listen_int_usf[usf]; | |
4953 | ||
4954 | /* error if there is a remainder. Should've been checked by user */ | |
4955 | WARN_ON_ONCE(ui > IEEE80211_MAX_UI); | |
4956 | listen_interval = FIELD_PREP(LISTEN_INT_USF, usf) | | |
4957 | FIELD_PREP(LISTEN_INT_UI, ui); | |
4958 | ||
4959 | return (u16) listen_interval; | |
4960 | } | |
820acc81 IP |
4961 | |
4962 | u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) | |
4963 | { | |
4964 | const struct ieee80211_sta_he_cap *he_cap; | |
4965 | const struct ieee80211_sta_eht_cap *eht_cap; | |
4966 | struct ieee80211_supported_band *sband; | |
ea5cba26 | 4967 | bool is_ap; |
820acc81 IP |
4968 | u8 n; |
4969 | ||
4970 | sband = ieee80211_get_sband(sdata); | |
4971 | if (!sband) | |
4972 | return 0; | |
4973 | ||
4974 | he_cap = ieee80211_get_he_iftype_cap(sband, iftype); | |
4975 | eht_cap = ieee80211_get_eht_iftype_cap(sband, iftype); | |
4976 | if (!he_cap || !eht_cap) | |
4977 | return 0; | |
4978 | ||
ea5cba26 JB |
4979 | is_ap = iftype == NL80211_IFTYPE_AP || |
4980 | iftype == NL80211_IFTYPE_P2P_GO; | |
4981 | ||
820acc81 | 4982 | n = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, |
ea5cba26 JB |
4983 | &eht_cap->eht_cap_elem, |
4984 | is_ap); | |
820acc81 IP |
4985 | return 2 + 1 + |
4986 | sizeof(he_cap->he_cap_elem) + n + | |
4987 | ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], | |
4988 | eht_cap->eht_cap_elem.phy_cap_info); | |
4989 | return 0; | |
4990 | } | |
4991 | ||
4992 | u8 *ieee80211_ie_build_eht_cap(u8 *pos, | |
4993 | const struct ieee80211_sta_he_cap *he_cap, | |
4994 | const struct ieee80211_sta_eht_cap *eht_cap, | |
ea5cba26 JB |
4995 | u8 *end, |
4996 | bool for_ap) | |
820acc81 IP |
4997 | { |
4998 | u8 mcs_nss_len, ppet_len; | |
4999 | u8 ie_len; | |
5000 | u8 *orig_pos = pos; | |
5001 | ||
5002 | /* Make sure we have place for the IE */ | |
5003 | if (!he_cap || !eht_cap) | |
5004 | return orig_pos; | |
5005 | ||
5006 | mcs_nss_len = ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, | |
ea5cba26 JB |
5007 | &eht_cap->eht_cap_elem, |
5008 | for_ap); | |
820acc81 IP |
5009 | ppet_len = ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], |
5010 | eht_cap->eht_cap_elem.phy_cap_info); | |
5011 | ||
5012 | ie_len = 2 + 1 + sizeof(eht_cap->eht_cap_elem) + mcs_nss_len + ppet_len; | |
5013 | if ((end - pos) < ie_len) | |
5014 | return orig_pos; | |
5015 | ||
5016 | *pos++ = WLAN_EID_EXTENSION; | |
5017 | *pos++ = ie_len - 2; | |
5018 | *pos++ = WLAN_EID_EXT_EHT_CAPABILITY; | |
5019 | ||
5020 | /* Fixed data */ | |
5021 | memcpy(pos, &eht_cap->eht_cap_elem, sizeof(eht_cap->eht_cap_elem)); | |
5022 | pos += sizeof(eht_cap->eht_cap_elem); | |
5023 | ||
5024 | memcpy(pos, &eht_cap->eht_mcs_nss_supp, mcs_nss_len); | |
5025 | pos += mcs_nss_len; | |
5026 | ||
5027 | if (ppet_len) { | |
5028 | memcpy(pos, &eht_cap->eht_ppe_thres, ppet_len); | |
5029 | pos += ppet_len; | |
5030 | } | |
5031 | ||
5032 | return pos; | |
5033 | } | |
e4342549 JB |
5034 | |
5035 | void ieee80211_fragment_element(struct sk_buff *skb, u8 *len_pos) | |
5036 | { | |
5037 | unsigned int elem_len; | |
5038 | ||
5039 | if (!len_pos) | |
5040 | return; | |
5041 | ||
5042 | elem_len = skb->data + skb->len - len_pos - 1; | |
5043 | ||
5044 | while (elem_len > 255) { | |
5045 | /* this one is 255 */ | |
5046 | *len_pos = 255; | |
5047 | /* remaining data gets smaller */ | |
5048 | elem_len -= 255; | |
5049 | /* make space for the fragment ID/len in SKB */ | |
5050 | skb_put(skb, 2); | |
5051 | /* shift back the remaining data to place fragment ID/len */ | |
5052 | memmove(len_pos + 255 + 3, len_pos + 255 + 1, elem_len); | |
5053 | /* place the fragment ID */ | |
5054 | len_pos += 255 + 1; | |
5055 | *len_pos = WLAN_EID_FRAGMENT; | |
5056 | /* and point to fragment length to update later */ | |
5057 | len_pos++; | |
5058 | } | |
5059 | ||
5060 | *len_pos = elem_len; | |
5061 | } |