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 |
c0058df7 | 9 | * Copyright (C) 2018-2020 Intel Corporation |
c2d1560a | 10 | * |
c2d1560a JB |
11 | * utilities for mac80211 |
12 | */ | |
13 | ||
14 | #include <net/mac80211.h> | |
15 | #include <linux/netdevice.h> | |
bc3b2d7f | 16 | #include <linux/export.h> |
c2d1560a JB |
17 | #include <linux/types.h> |
18 | #include <linux/slab.h> | |
19 | #include <linux/skbuff.h> | |
20 | #include <linux/etherdevice.h> | |
21 | #include <linux/if_arp.h> | |
c2d1560a | 22 | #include <linux/bitmap.h> |
dd76986b | 23 | #include <linux/crc32.h> |
881d966b | 24 | #include <net/net_namespace.h> |
c2d1560a | 25 | #include <net/cfg80211.h> |
dabeb344 | 26 | #include <net/rtnetlink.h> |
c2d1560a JB |
27 | |
28 | #include "ieee80211_i.h" | |
24487981 | 29 | #include "driver-ops.h" |
2c8dccc7 | 30 | #include "rate.h" |
ee385855 | 31 | #include "mesh.h" |
c2d1560a | 32 | #include "wme.h" |
f2753ddb | 33 | #include "led.h" |
fffd0934 | 34 | #include "wep.h" |
c2d1560a JB |
35 | |
36 | /* privid for wiphys to determine whether they belong to us or not */ | |
8a47cea7 | 37 | const void *const mac80211_wiphy_privid = &mac80211_wiphy_privid; |
c2d1560a | 38 | |
9a95371a LR |
39 | struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy) |
40 | { | |
41 | struct ieee80211_local *local; | |
9a95371a LR |
42 | |
43 | local = wiphy_priv(wiphy); | |
44 | return &local->hw; | |
45 | } | |
46 | EXPORT_SYMBOL(wiphy_to_ieee80211_hw); | |
c2d1560a | 47 | |
09a740ce TP |
48 | u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len, |
49 | enum nl80211_iftype type) | |
50 | { | |
51 | __le16 fc = hdr->frame_control; | |
52 | ||
53 | if (ieee80211_is_data(fc)) { | |
54 | if (len < 24) /* drop incorrect hdr len (data) */ | |
55 | return NULL; | |
56 | ||
57 | if (ieee80211_has_a4(fc)) | |
58 | return NULL; | |
59 | if (ieee80211_has_tods(fc)) | |
60 | return hdr->addr1; | |
61 | if (ieee80211_has_fromds(fc)) | |
62 | return hdr->addr2; | |
63 | ||
64 | return hdr->addr3; | |
65 | } | |
66 | ||
67 | if (ieee80211_is_s1g_beacon(fc)) { | |
68 | struct ieee80211_ext *ext = (void *) hdr; | |
69 | ||
70 | return ext->u.s1g_beacon.sa; | |
71 | } | |
72 | ||
73 | if (ieee80211_is_mgmt(fc)) { | |
74 | if (len < 24) /* drop incorrect hdr len (mgmt) */ | |
75 | return NULL; | |
76 | return hdr->addr3; | |
77 | } | |
78 | ||
79 | if (ieee80211_is_ctl(fc)) { | |
80 | if (ieee80211_is_pspoll(fc)) | |
81 | return hdr->addr1; | |
82 | ||
83 | if (ieee80211_is_back_req(fc)) { | |
84 | switch (type) { | |
85 | case NL80211_IFTYPE_STATION: | |
86 | return hdr->addr2; | |
87 | case NL80211_IFTYPE_AP: | |
88 | case NL80211_IFTYPE_AP_VLAN: | |
89 | return hdr->addr1; | |
90 | default: | |
91 | break; /* fall through to the return */ | |
92 | } | |
93 | } | |
94 | } | |
95 | ||
96 | return NULL; | |
97 | } | |
98 | EXPORT_SYMBOL(ieee80211_get_bssid); | |
99 | ||
5cf121c3 | 100 | void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx) |
c2d1560a | 101 | { |
252b86c4 | 102 | struct sk_buff *skb; |
2de8e0d9 JB |
103 | struct ieee80211_hdr *hdr; |
104 | ||
252b86c4 | 105 | skb_queue_walk(&tx->skbs, skb) { |
2de8e0d9 JB |
106 | hdr = (struct ieee80211_hdr *) skb->data; |
107 | hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); | |
252b86c4 | 108 | } |
c2d1560a JB |
109 | } |
110 | ||
57fbcce3 | 111 | int ieee80211_frame_duration(enum nl80211_band band, size_t len, |
438b61b7 SW |
112 | int rate, int erp, int short_preamble, |
113 | int shift) | |
c2d1560a JB |
114 | { |
115 | int dur; | |
116 | ||
117 | /* calculate duration (in microseconds, rounded up to next higher | |
118 | * integer if it includes a fractional microsecond) to send frame of | |
119 | * len bytes (does not include FCS) at the given rate. Duration will | |
120 | * also include SIFS. | |
121 | * | |
122 | * rate is in 100 kbps, so divident is multiplied by 10 in the | |
123 | * DIV_ROUND_UP() operations. | |
438b61b7 SW |
124 | * |
125 | * shift may be 2 for 5 MHz channels or 1 for 10 MHz channels, and | |
126 | * is assumed to be 0 otherwise. | |
c2d1560a JB |
127 | */ |
128 | ||
57fbcce3 | 129 | if (band == NL80211_BAND_5GHZ || erp) { |
c2d1560a JB |
130 | /* |
131 | * OFDM: | |
132 | * | |
133 | * N_DBPS = DATARATE x 4 | |
134 | * N_SYM = Ceiling((16+8xLENGTH+6) / N_DBPS) | |
135 | * (16 = SIGNAL time, 6 = tail bits) | |
136 | * TXTIME = T_PREAMBLE + T_SIGNAL + T_SYM x N_SYM + Signal Ext | |
137 | * | |
138 | * T_SYM = 4 usec | |
438b61b7 | 139 | * 802.11a - 18.5.2: aSIFSTime = 16 usec |
c2d1560a JB |
140 | * 802.11g - 19.8.4: aSIFSTime = 10 usec + |
141 | * signal ext = 6 usec | |
142 | */ | |
c2d1560a | 143 | dur = 16; /* SIFS + signal ext */ |
438b61b7 SW |
144 | dur += 16; /* IEEE 802.11-2012 18.3.2.4: T_PREAMBLE = 16 usec */ |
145 | dur += 4; /* IEEE 802.11-2012 18.3.2.4: T_SIGNAL = 4 usec */ | |
438b61b7 SW |
146 | |
147 | /* IEEE 802.11-2012 18.3.2.4: all values above are: | |
148 | * * times 4 for 5 MHz | |
149 | * * times 2 for 10 MHz | |
150 | */ | |
151 | dur *= 1 << shift; | |
2103dec1 SW |
152 | |
153 | /* rates should already consider the channel bandwidth, | |
154 | * don't apply divisor again. | |
155 | */ | |
156 | dur += 4 * DIV_ROUND_UP((16 + 8 * (len + 4) + 6) * 10, | |
157 | 4 * rate); /* T_SYM x N_SYM */ | |
c2d1560a JB |
158 | } else { |
159 | /* | |
160 | * 802.11b or 802.11g with 802.11b compatibility: | |
161 | * 18.3.4: TXTIME = PreambleLength + PLCPHeaderTime + | |
162 | * Ceiling(((LENGTH+PBCC)x8)/DATARATE). PBCC=0. | |
163 | * | |
164 | * 802.11 (DS): 15.3.3, 802.11b: 18.3.4 | |
165 | * aSIFSTime = 10 usec | |
166 | * aPreambleLength = 144 usec or 72 usec with short preamble | |
167 | * aPLCPHeaderLength = 48 usec or 24 usec with short preamble | |
168 | */ | |
169 | dur = 10; /* aSIFSTime = 10 usec */ | |
170 | dur += short_preamble ? (72 + 24) : (144 + 48); | |
171 | ||
172 | dur += DIV_ROUND_UP(8 * (len + 4) * 10, rate); | |
173 | } | |
174 | ||
175 | return dur; | |
176 | } | |
177 | ||
178 | /* Exported duration function for driver use */ | |
32bfd35d JB |
179 | __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, |
180 | struct ieee80211_vif *vif, | |
57fbcce3 | 181 | enum nl80211_band band, |
8318d78a JB |
182 | size_t frame_len, |
183 | struct ieee80211_rate *rate) | |
c2d1560a | 184 | { |
25d834e1 | 185 | struct ieee80211_sub_if_data *sdata; |
c2d1560a | 186 | u16 dur; |
438b61b7 | 187 | int erp, shift = 0; |
25d834e1 | 188 | bool short_preamble = false; |
c2d1560a | 189 | |
8318d78a | 190 | erp = 0; |
25d834e1 JB |
191 | if (vif) { |
192 | sdata = vif_to_sdata(vif); | |
bda3933a | 193 | short_preamble = sdata->vif.bss_conf.use_short_preamble; |
25d834e1 JB |
194 | if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) |
195 | erp = rate->flags & IEEE80211_RATE_ERP_G; | |
438b61b7 | 196 | shift = ieee80211_vif_get_shift(vif); |
25d834e1 | 197 | } |
8318d78a | 198 | |
4ee73f33 | 199 | dur = ieee80211_frame_duration(band, frame_len, rate->bitrate, erp, |
438b61b7 | 200 | short_preamble, shift); |
c2d1560a JB |
201 | |
202 | return cpu_to_le16(dur); | |
203 | } | |
204 | EXPORT_SYMBOL(ieee80211_generic_frame_duration); | |
205 | ||
32bfd35d JB |
206 | __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, |
207 | struct ieee80211_vif *vif, size_t frame_len, | |
e039fa4a | 208 | const struct ieee80211_tx_info *frame_txctl) |
c2d1560a JB |
209 | { |
210 | struct ieee80211_local *local = hw_to_local(hw); | |
211 | struct ieee80211_rate *rate; | |
25d834e1 | 212 | struct ieee80211_sub_if_data *sdata; |
471b3efd | 213 | bool short_preamble; |
2103dec1 | 214 | int erp, shift = 0, bitrate; |
c2d1560a | 215 | u16 dur; |
2e92e6f2 JB |
216 | struct ieee80211_supported_band *sband; |
217 | ||
4ee73f33 | 218 | sband = local->hw.wiphy->bands[frame_txctl->band]; |
c2d1560a | 219 | |
25d834e1 | 220 | short_preamble = false; |
7e9ed188 | 221 | |
e039fa4a | 222 | rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx]; |
8318d78a JB |
223 | |
224 | erp = 0; | |
25d834e1 JB |
225 | if (vif) { |
226 | sdata = vif_to_sdata(vif); | |
bda3933a | 227 | short_preamble = sdata->vif.bss_conf.use_short_preamble; |
25d834e1 JB |
228 | if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) |
229 | erp = rate->flags & IEEE80211_RATE_ERP_G; | |
438b61b7 | 230 | shift = ieee80211_vif_get_shift(vif); |
25d834e1 | 231 | } |
c2d1560a | 232 | |
2103dec1 SW |
233 | bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); |
234 | ||
c2d1560a | 235 | /* CTS duration */ |
2103dec1 | 236 | dur = ieee80211_frame_duration(sband->band, 10, bitrate, |
438b61b7 | 237 | erp, short_preamble, shift); |
c2d1560a | 238 | /* Data frame duration */ |
2103dec1 | 239 | dur += ieee80211_frame_duration(sband->band, frame_len, bitrate, |
438b61b7 | 240 | erp, short_preamble, shift); |
c2d1560a | 241 | /* ACK duration */ |
2103dec1 | 242 | dur += ieee80211_frame_duration(sband->band, 10, bitrate, |
438b61b7 | 243 | erp, short_preamble, shift); |
c2d1560a JB |
244 | |
245 | return cpu_to_le16(dur); | |
246 | } | |
247 | EXPORT_SYMBOL(ieee80211_rts_duration); | |
248 | ||
32bfd35d JB |
249 | __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, |
250 | struct ieee80211_vif *vif, | |
c2d1560a | 251 | size_t frame_len, |
e039fa4a | 252 | const struct ieee80211_tx_info *frame_txctl) |
c2d1560a JB |
253 | { |
254 | struct ieee80211_local *local = hw_to_local(hw); | |
255 | struct ieee80211_rate *rate; | |
25d834e1 | 256 | struct ieee80211_sub_if_data *sdata; |
471b3efd | 257 | bool short_preamble; |
2103dec1 | 258 | int erp, shift = 0, bitrate; |
c2d1560a | 259 | u16 dur; |
2e92e6f2 JB |
260 | struct ieee80211_supported_band *sband; |
261 | ||
4ee73f33 | 262 | sband = local->hw.wiphy->bands[frame_txctl->band]; |
c2d1560a | 263 | |
25d834e1 | 264 | short_preamble = false; |
7e9ed188 | 265 | |
e039fa4a | 266 | rate = &sband->bitrates[frame_txctl->control.rts_cts_rate_idx]; |
8318d78a | 267 | erp = 0; |
25d834e1 JB |
268 | if (vif) { |
269 | sdata = vif_to_sdata(vif); | |
bda3933a | 270 | short_preamble = sdata->vif.bss_conf.use_short_preamble; |
25d834e1 JB |
271 | if (sdata->flags & IEEE80211_SDATA_OPERATING_GMODE) |
272 | erp = rate->flags & IEEE80211_RATE_ERP_G; | |
438b61b7 | 273 | shift = ieee80211_vif_get_shift(vif); |
25d834e1 | 274 | } |
c2d1560a | 275 | |
2103dec1 SW |
276 | bitrate = DIV_ROUND_UP(rate->bitrate, 1 << shift); |
277 | ||
c2d1560a | 278 | /* Data frame duration */ |
2103dec1 | 279 | dur = ieee80211_frame_duration(sband->band, frame_len, bitrate, |
438b61b7 | 280 | erp, short_preamble, shift); |
e039fa4a | 281 | if (!(frame_txctl->flags & IEEE80211_TX_CTL_NO_ACK)) { |
c2d1560a | 282 | /* ACK duration */ |
2103dec1 | 283 | dur += ieee80211_frame_duration(sband->band, 10, bitrate, |
438b61b7 | 284 | erp, short_preamble, shift); |
c2d1560a JB |
285 | } |
286 | ||
287 | return cpu_to_le16(dur); | |
288 | } | |
289 | EXPORT_SYMBOL(ieee80211_ctstoself_duration); | |
290 | ||
21a5d4c3 MP |
291 | static void __ieee80211_wake_txqs(struct ieee80211_sub_if_data *sdata, int ac) |
292 | { | |
293 | struct ieee80211_local *local = sdata->local; | |
294 | struct ieee80211_vif *vif = &sdata->vif; | |
295 | struct fq *fq = &local->fq; | |
296 | struct ps_data *ps = NULL; | |
297 | struct txq_info *txqi; | |
298 | struct sta_info *sta; | |
299 | int i; | |
300 | ||
d8dec42b JB |
301 | local_bh_disable(); |
302 | spin_lock(&fq->lock); | |
21a5d4c3 MP |
303 | |
304 | if (sdata->vif.type == NL80211_IFTYPE_AP) | |
305 | ps = &sdata->bss->ps; | |
306 | ||
307 | sdata->vif.txqs_stopped[ac] = false; | |
308 | ||
309 | list_for_each_entry_rcu(sta, &local->sta_list, list) { | |
310 | if (sdata != sta->sdata) | |
311 | continue; | |
312 | ||
313 | for (i = 0; i < ARRAY_SIZE(sta->sta.txq); i++) { | |
314 | struct ieee80211_txq *txq = sta->sta.txq[i]; | |
315 | ||
a5ae3264 ES |
316 | if (!txq) |
317 | continue; | |
318 | ||
21a5d4c3 MP |
319 | txqi = to_txq_info(txq); |
320 | ||
321 | if (ac != txq->ac) | |
322 | continue; | |
323 | ||
324 | if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, | |
325 | &txqi->flags)) | |
326 | continue; | |
327 | ||
d8dec42b | 328 | spin_unlock(&fq->lock); |
21a5d4c3 | 329 | drv_wake_tx_queue(local, txqi); |
d8dec42b | 330 | spin_lock(&fq->lock); |
21a5d4c3 MP |
331 | } |
332 | } | |
333 | ||
334 | if (!vif->txq) | |
335 | goto out; | |
336 | ||
337 | txqi = to_txq_info(vif->txq); | |
338 | ||
339 | if (!test_and_clear_bit(IEEE80211_TXQ_STOP_NETIF_TX, &txqi->flags) || | |
340 | (ps && atomic_read(&ps->num_sta_ps)) || ac != vif->txq->ac) | |
341 | goto out; | |
342 | ||
d8dec42b | 343 | spin_unlock(&fq->lock); |
21a5d4c3 MP |
344 | |
345 | drv_wake_tx_queue(local, txqi); | |
d8dec42b | 346 | local_bh_enable(); |
21a5d4c3 MP |
347 | return; |
348 | out: | |
d8dec42b JB |
349 | spin_unlock(&fq->lock); |
350 | local_bh_enable(); | |
21a5d4c3 MP |
351 | } |
352 | ||
f6c7f03f EG |
353 | static void |
354 | __releases(&local->queue_stop_reason_lock) | |
355 | __acquires(&local->queue_stop_reason_lock) | |
356 | _ieee80211_wake_txqs(struct ieee80211_local *local, unsigned long *flags) | |
21a5d4c3 | 357 | { |
21a5d4c3 MP |
358 | struct ieee80211_sub_if_data *sdata; |
359 | int n_acs = IEEE80211_NUM_ACS; | |
21a5d4c3 MP |
360 | int i; |
361 | ||
362 | rcu_read_lock(); | |
21a5d4c3 MP |
363 | |
364 | if (local->hw.queues < IEEE80211_NUM_ACS) | |
365 | n_acs = 1; | |
366 | ||
367 | for (i = 0; i < local->hw.queues; i++) { | |
368 | if (local->queue_stop_reasons[i]) | |
369 | continue; | |
370 | ||
f6c7f03f | 371 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, *flags); |
21a5d4c3 MP |
372 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
373 | int ac; | |
374 | ||
375 | for (ac = 0; ac < n_acs; ac++) { | |
376 | int ac_queue = sdata->vif.hw_queue[ac]; | |
377 | ||
378 | if (ac_queue == i || | |
379 | sdata->vif.cab_queue == i) | |
380 | __ieee80211_wake_txqs(sdata, ac); | |
381 | } | |
382 | } | |
f6c7f03f | 383 | spin_lock_irqsave(&local->queue_stop_reason_lock, *flags); |
21a5d4c3 MP |
384 | } |
385 | ||
21a5d4c3 MP |
386 | rcu_read_unlock(); |
387 | } | |
388 | ||
da1cad73 | 389 | void ieee80211_wake_txqs(struct tasklet_struct *t) |
f6c7f03f | 390 | { |
da1cad73 AP |
391 | struct ieee80211_local *local = from_tasklet(local, t, |
392 | wake_txqs_tasklet); | |
f6c7f03f EG |
393 | unsigned long flags; |
394 | ||
395 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
396 | _ieee80211_wake_txqs(local, &flags); | |
397 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
398 | } | |
399 | ||
3a25a8c8 JB |
400 | void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue) |
401 | { | |
402 | struct ieee80211_sub_if_data *sdata; | |
a6f38ac3 JB |
403 | int n_acs = IEEE80211_NUM_ACS; |
404 | ||
80a83cfc MK |
405 | if (local->ops->wake_tx_queue) |
406 | return; | |
407 | ||
a6f38ac3 JB |
408 | if (local->hw.queues < IEEE80211_NUM_ACS) |
409 | n_acs = 1; | |
3a25a8c8 JB |
410 | |
411 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { | |
412 | int ac; | |
413 | ||
f142c6b9 JB |
414 | if (!sdata->dev) |
415 | continue; | |
416 | ||
3a25a8c8 JB |
417 | if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE && |
418 | local->queue_stop_reasons[sdata->vif.cab_queue] != 0) | |
419 | continue; | |
420 | ||
a6f38ac3 | 421 | for (ac = 0; ac < n_acs; ac++) { |
3a25a8c8 JB |
422 | int ac_queue = sdata->vif.hw_queue[ac]; |
423 | ||
424 | if (ac_queue == queue || | |
425 | (sdata->vif.cab_queue == queue && | |
426 | local->queue_stop_reasons[ac_queue] == 0 && | |
427 | skb_queue_empty(&local->pending[ac_queue]))) | |
428 | netif_wake_subqueue(sdata->dev, ac); | |
429 | } | |
430 | } | |
431 | } | |
432 | ||
ce7c9111 | 433 | static void __ieee80211_wake_queue(struct ieee80211_hw *hw, int queue, |
cca07b00 | 434 | enum queue_stop_reason reason, |
f6c7f03f EG |
435 | bool refcounted, |
436 | unsigned long *flags) | |
c2d1560a JB |
437 | { |
438 | struct ieee80211_local *local = hw_to_local(hw); | |
439 | ||
b5878a2d JB |
440 | trace_wake_queue(local, queue, reason); |
441 | ||
e4e72fb4 JB |
442 | if (WARN_ON(queue >= hw->queues)) |
443 | return; | |
ce7c9111 | 444 | |
ada15125 JB |
445 | if (!test_bit(reason, &local->queue_stop_reasons[queue])) |
446 | return; | |
447 | ||
856142cd | 448 | if (!refcounted) { |
cca07b00 | 449 | local->q_stop_reasons[queue][reason] = 0; |
856142cd | 450 | } else { |
cca07b00 | 451 | local->q_stop_reasons[queue][reason]--; |
856142cd JB |
452 | if (WARN_ON(local->q_stop_reasons[queue][reason] < 0)) |
453 | local->q_stop_reasons[queue][reason] = 0; | |
454 | } | |
cca07b00 LC |
455 | |
456 | if (local->q_stop_reasons[queue][reason] == 0) | |
457 | __clear_bit(reason, &local->queue_stop_reasons[queue]); | |
96f5e66e JB |
458 | |
459 | if (local->queue_stop_reasons[queue] != 0) | |
460 | /* someone still has this queue stopped */ | |
461 | return; | |
462 | ||
7236fe29 JB |
463 | if (skb_queue_empty(&local->pending[queue])) { |
464 | rcu_read_lock(); | |
3a25a8c8 | 465 | ieee80211_propagate_queue_wake(local, queue); |
7236fe29 JB |
466 | rcu_read_unlock(); |
467 | } else | |
3b8d81e0 | 468 | tasklet_schedule(&local->tx_pending_tasklet); |
21a5d4c3 | 469 | |
f6c7f03f EG |
470 | /* |
471 | * Calling _ieee80211_wake_txqs here can be a problem because it may | |
472 | * release queue_stop_reason_lock which has been taken by | |
473 | * __ieee80211_wake_queue's caller. It is certainly not very nice to | |
474 | * release someone's lock, but it is fine because all the callers of | |
475 | * __ieee80211_wake_queue call it right before releasing the lock. | |
476 | */ | |
477 | if (local->ops->wake_tx_queue) { | |
478 | if (reason == IEEE80211_QUEUE_STOP_REASON_DRIVER) | |
479 | tasklet_schedule(&local->wake_txqs_tasklet); | |
480 | else | |
481 | _ieee80211_wake_txqs(local, flags); | |
482 | } | |
c2d1560a | 483 | } |
ce7c9111 | 484 | |
96f5e66e | 485 | void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
486 | enum queue_stop_reason reason, |
487 | bool refcounted) | |
ce7c9111 KV |
488 | { |
489 | struct ieee80211_local *local = hw_to_local(hw); | |
490 | unsigned long flags; | |
491 | ||
492 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
f6c7f03f | 493 | __ieee80211_wake_queue(hw, queue, reason, refcounted, &flags); |
ce7c9111 KV |
494 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
495 | } | |
496 | ||
497 | void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue) | |
498 | { | |
499 | ieee80211_wake_queue_by_reason(hw, queue, | |
cca07b00 LC |
500 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
501 | false); | |
ce7c9111 | 502 | } |
c2d1560a JB |
503 | EXPORT_SYMBOL(ieee80211_wake_queue); |
504 | ||
ce7c9111 | 505 | static void __ieee80211_stop_queue(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
506 | enum queue_stop_reason reason, |
507 | bool refcounted) | |
c2d1560a JB |
508 | { |
509 | struct ieee80211_local *local = hw_to_local(hw); | |
cf0277e7 | 510 | struct ieee80211_sub_if_data *sdata; |
a6f38ac3 | 511 | int n_acs = IEEE80211_NUM_ACS; |
c2d1560a | 512 | |
b5878a2d JB |
513 | trace_stop_queue(local, queue, reason); |
514 | ||
e4e72fb4 JB |
515 | if (WARN_ON(queue >= hw->queues)) |
516 | return; | |
96f5e66e | 517 | |
cca07b00 LC |
518 | if (!refcounted) |
519 | local->q_stop_reasons[queue][reason] = 1; | |
520 | else | |
521 | local->q_stop_reasons[queue][reason]++; | |
ada15125 | 522 | |
cca07b00 LC |
523 | if (__test_and_set_bit(reason, &local->queue_stop_reasons[queue])) |
524 | return; | |
cf0277e7 | 525 | |
a6f38ac3 JB |
526 | if (local->hw.queues < IEEE80211_NUM_ACS) |
527 | n_acs = 1; | |
528 | ||
cf0277e7 | 529 | rcu_read_lock(); |
3a25a8c8 JB |
530 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
531 | int ac; | |
532 | ||
f142c6b9 JB |
533 | if (!sdata->dev) |
534 | continue; | |
535 | ||
a6f38ac3 | 536 | for (ac = 0; ac < n_acs; ac++) { |
3a25a8c8 | 537 | if (sdata->vif.hw_queue[ac] == queue || |
21a5d4c3 MP |
538 | sdata->vif.cab_queue == queue) { |
539 | if (!local->ops->wake_tx_queue) { | |
540 | netif_stop_subqueue(sdata->dev, ac); | |
541 | continue; | |
542 | } | |
543 | spin_lock(&local->fq.lock); | |
544 | sdata->vif.txqs_stopped[ac] = true; | |
545 | spin_unlock(&local->fq.lock); | |
546 | } | |
3a25a8c8 JB |
547 | } |
548 | } | |
cf0277e7 | 549 | rcu_read_unlock(); |
c2d1560a | 550 | } |
ce7c9111 | 551 | |
96f5e66e | 552 | void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue, |
cca07b00 LC |
553 | enum queue_stop_reason reason, |
554 | bool refcounted) | |
ce7c9111 KV |
555 | { |
556 | struct ieee80211_local *local = hw_to_local(hw); | |
557 | unsigned long flags; | |
558 | ||
559 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
cca07b00 | 560 | __ieee80211_stop_queue(hw, queue, reason, refcounted); |
ce7c9111 KV |
561 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
562 | } | |
563 | ||
564 | void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue) | |
565 | { | |
566 | ieee80211_stop_queue_by_reason(hw, queue, | |
cca07b00 LC |
567 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
568 | false); | |
ce7c9111 | 569 | } |
c2d1560a JB |
570 | EXPORT_SYMBOL(ieee80211_stop_queue); |
571 | ||
8f77f384 JB |
572 | void ieee80211_add_pending_skb(struct ieee80211_local *local, |
573 | struct sk_buff *skb) | |
574 | { | |
575 | struct ieee80211_hw *hw = &local->hw; | |
576 | unsigned long flags; | |
a7bc376c | 577 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
3a25a8c8 | 578 | int queue = info->hw_queue; |
a7bc376c JB |
579 | |
580 | if (WARN_ON(!info->control.vif)) { | |
d4fa14cd | 581 | ieee80211_free_txskb(&local->hw, skb); |
a7bc376c JB |
582 | return; |
583 | } | |
8f77f384 JB |
584 | |
585 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
cca07b00 LC |
586 | __ieee80211_stop_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
587 | false); | |
3b8d81e0 | 588 | __skb_queue_tail(&local->pending[queue], skb); |
cca07b00 | 589 | __ieee80211_wake_queue(hw, queue, IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
f6c7f03f | 590 | false, &flags); |
8f77f384 JB |
591 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
592 | } | |
593 | ||
e3685e03 JB |
594 | void ieee80211_add_pending_skbs(struct ieee80211_local *local, |
595 | struct sk_buff_head *skbs) | |
8f77f384 JB |
596 | { |
597 | struct ieee80211_hw *hw = &local->hw; | |
598 | struct sk_buff *skb; | |
599 | unsigned long flags; | |
b0b97a8a | 600 | int queue, i; |
8f77f384 JB |
601 | |
602 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
8f77f384 | 603 | while ((skb = skb_dequeue(skbs))) { |
a7bc376c JB |
604 | struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); |
605 | ||
606 | if (WARN_ON(!info->control.vif)) { | |
d4fa14cd | 607 | ieee80211_free_txskb(&local->hw, skb); |
a7bc376c JB |
608 | continue; |
609 | } | |
610 | ||
3a25a8c8 | 611 | queue = info->hw_queue; |
4644ae89 JB |
612 | |
613 | __ieee80211_stop_queue(hw, queue, | |
cca07b00 LC |
614 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
615 | false); | |
4644ae89 | 616 | |
3b8d81e0 | 617 | __skb_queue_tail(&local->pending[queue], skb); |
8f77f384 JB |
618 | } |
619 | ||
3b8d81e0 | 620 | for (i = 0; i < hw->queues; i++) |
8f77f384 | 621 | __ieee80211_wake_queue(hw, i, |
cca07b00 | 622 | IEEE80211_QUEUE_STOP_REASON_SKB_ADD, |
f6c7f03f | 623 | false, &flags); |
8f77f384 | 624 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
8f77f384 JB |
625 | } |
626 | ||
ce7c9111 | 627 | void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw, |
445ea4e8 | 628 | unsigned long queues, |
cca07b00 LC |
629 | enum queue_stop_reason reason, |
630 | bool refcounted) | |
c2d1560a | 631 | { |
ce7c9111 KV |
632 | struct ieee80211_local *local = hw_to_local(hw); |
633 | unsigned long flags; | |
c2d1560a JB |
634 | int i; |
635 | ||
ce7c9111 KV |
636 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
637 | ||
445ea4e8 | 638 | for_each_set_bit(i, &queues, hw->queues) |
cca07b00 | 639 | __ieee80211_stop_queue(hw, i, reason, refcounted); |
ce7c9111 KV |
640 | |
641 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
642 | } | |
643 | ||
644 | void ieee80211_stop_queues(struct ieee80211_hw *hw) | |
645 | { | |
445ea4e8 | 646 | ieee80211_stop_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
647 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
648 | false); | |
c2d1560a JB |
649 | } |
650 | EXPORT_SYMBOL(ieee80211_stop_queues); | |
651 | ||
92ab8535 TW |
652 | int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue) |
653 | { | |
654 | struct ieee80211_local *local = hw_to_local(hw); | |
3b8d81e0 JB |
655 | unsigned long flags; |
656 | int ret; | |
96f5e66e | 657 | |
e4e72fb4 JB |
658 | if (WARN_ON(queue >= hw->queues)) |
659 | return true; | |
96f5e66e | 660 | |
3b8d81e0 | 661 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
2419ea14 TP |
662 | ret = test_bit(IEEE80211_QUEUE_STOP_REASON_DRIVER, |
663 | &local->queue_stop_reasons[queue]); | |
3b8d81e0 JB |
664 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); |
665 | return ret; | |
92ab8535 TW |
666 | } |
667 | EXPORT_SYMBOL(ieee80211_queue_stopped); | |
668 | ||
ce7c9111 | 669 | void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw, |
445ea4e8 | 670 | unsigned long queues, |
cca07b00 LC |
671 | enum queue_stop_reason reason, |
672 | bool refcounted) | |
c2d1560a | 673 | { |
ce7c9111 KV |
674 | struct ieee80211_local *local = hw_to_local(hw); |
675 | unsigned long flags; | |
c2d1560a JB |
676 | int i; |
677 | ||
ce7c9111 KV |
678 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); |
679 | ||
445ea4e8 | 680 | for_each_set_bit(i, &queues, hw->queues) |
f6c7f03f | 681 | __ieee80211_wake_queue(hw, i, reason, refcounted, &flags); |
ce7c9111 KV |
682 | |
683 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
684 | } | |
685 | ||
686 | void ieee80211_wake_queues(struct ieee80211_hw *hw) | |
687 | { | |
445ea4e8 | 688 | ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
689 | IEEE80211_QUEUE_STOP_REASON_DRIVER, |
690 | false); | |
c2d1560a JB |
691 | } |
692 | EXPORT_SYMBOL(ieee80211_wake_queues); | |
dabeb344 | 693 | |
26da23b6 LC |
694 | static unsigned int |
695 | ieee80211_get_vif_queues(struct ieee80211_local *local, | |
696 | struct ieee80211_sub_if_data *sdata) | |
39ecc01d | 697 | { |
26da23b6 | 698 | unsigned int queues; |
39ecc01d | 699 | |
30686bf7 | 700 | if (sdata && ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) { |
39ecc01d JB |
701 | int ac; |
702 | ||
703 | queues = 0; | |
704 | ||
705 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
706 | queues |= BIT(sdata->vif.hw_queue[ac]); | |
707 | if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE) | |
708 | queues |= BIT(sdata->vif.cab_queue); | |
709 | } else { | |
710 | /* all queues */ | |
711 | queues = BIT(local->hw.queues) - 1; | |
712 | } | |
713 | ||
26da23b6 LC |
714 | return queues; |
715 | } | |
716 | ||
4f9610d5 LK |
717 | void __ieee80211_flush_queues(struct ieee80211_local *local, |
718 | struct ieee80211_sub_if_data *sdata, | |
3b24f4c6 | 719 | unsigned int queues, bool drop) |
26da23b6 | 720 | { |
26da23b6 LC |
721 | if (!local->ops->flush) |
722 | return; | |
723 | ||
4f9610d5 LK |
724 | /* |
725 | * If no queue was set, or if the HW doesn't support | |
726 | * IEEE80211_HW_QUEUE_CONTROL - flush all queues | |
727 | */ | |
30686bf7 | 728 | if (!queues || !ieee80211_hw_check(&local->hw, QUEUE_CONTROL)) |
4f9610d5 | 729 | queues = ieee80211_get_vif_queues(local, sdata); |
26da23b6 | 730 | |
59f48fe2 | 731 | ieee80211_stop_queues_by_reason(&local->hw, queues, |
cca07b00 LC |
732 | IEEE80211_QUEUE_STOP_REASON_FLUSH, |
733 | false); | |
445ea4e8 | 734 | |
3b24f4c6 | 735 | drv_flush(local, sdata, queues, drop); |
445ea4e8 | 736 | |
59f48fe2 | 737 | ieee80211_wake_queues_by_reason(&local->hw, queues, |
cca07b00 LC |
738 | IEEE80211_QUEUE_STOP_REASON_FLUSH, |
739 | false); | |
39ecc01d JB |
740 | } |
741 | ||
4f9610d5 | 742 | void ieee80211_flush_queues(struct ieee80211_local *local, |
3b24f4c6 | 743 | struct ieee80211_sub_if_data *sdata, bool drop) |
4f9610d5 | 744 | { |
3b24f4c6 | 745 | __ieee80211_flush_queues(local, sdata, 0, drop); |
4f9610d5 LK |
746 | } |
747 | ||
26da23b6 LC |
748 | void ieee80211_stop_vif_queues(struct ieee80211_local *local, |
749 | struct ieee80211_sub_if_data *sdata, | |
750 | enum queue_stop_reason reason) | |
751 | { | |
752 | ieee80211_stop_queues_by_reason(&local->hw, | |
753 | ieee80211_get_vif_queues(local, sdata), | |
754 | reason, true); | |
755 | } | |
756 | ||
757 | void ieee80211_wake_vif_queues(struct ieee80211_local *local, | |
758 | struct ieee80211_sub_if_data *sdata, | |
759 | enum queue_stop_reason reason) | |
760 | { | |
761 | ieee80211_wake_queues_by_reason(&local->hw, | |
762 | ieee80211_get_vif_queues(local, sdata), | |
763 | reason, true); | |
764 | } | |
765 | ||
3384d757 AN |
766 | static void __iterate_interfaces(struct ieee80211_local *local, |
767 | u32 iter_flags, | |
768 | void (*iterator)(void *data, u8 *mac, | |
769 | struct ieee80211_vif *vif), | |
770 | void *data) | |
dabeb344 | 771 | { |
dabeb344 | 772 | struct ieee80211_sub_if_data *sdata; |
3384d757 | 773 | bool active_only = iter_flags & IEEE80211_IFACE_ITER_ACTIVE; |
dabeb344 | 774 | |
c7c71066 | 775 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
2f561feb | 776 | switch (sdata->vif.type) { |
05c914fe | 777 | case NL80211_IFTYPE_MONITOR: |
d8212184 | 778 | if (!(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE)) |
31eba5bc FF |
779 | continue; |
780 | break; | |
05c914fe | 781 | case NL80211_IFTYPE_AP_VLAN: |
2f561feb | 782 | continue; |
2ca27bcf | 783 | default: |
2f561feb ID |
784 | break; |
785 | } | |
8b2c9824 | 786 | if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) && |
3384d757 | 787 | active_only && !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) |
8b2c9824 | 788 | continue; |
265a0708 BG |
789 | if ((iter_flags & IEEE80211_IFACE_SKIP_SDATA_NOT_IN_DRIVER) && |
790 | !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) | |
791 | continue; | |
3384d757 | 792 | if (ieee80211_sdata_running(sdata) || !active_only) |
47846c9b | 793 | iterator(data, sdata->vif.addr, |
2f561feb ID |
794 | &sdata->vif); |
795 | } | |
796 | ||
c7c71066 JB |
797 | sdata = rcu_dereference_check(local->monitor_sdata, |
798 | lockdep_is_held(&local->iflist_mtx) || | |
799 | lockdep_rtnl_is_held()); | |
8b2c9824 | 800 | if (sdata && |
3384d757 | 801 | (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL || !active_only || |
8b2c9824 | 802 | sdata->flags & IEEE80211_SDATA_IN_DRIVER)) |
685fb72b | 803 | iterator(data, sdata->vif.addr, &sdata->vif); |
c7c71066 | 804 | } |
685fb72b | 805 | |
3384d757 | 806 | void ieee80211_iterate_interfaces( |
c7c71066 JB |
807 | struct ieee80211_hw *hw, u32 iter_flags, |
808 | void (*iterator)(void *data, u8 *mac, | |
809 | struct ieee80211_vif *vif), | |
810 | void *data) | |
811 | { | |
812 | struct ieee80211_local *local = hw_to_local(hw); | |
813 | ||
814 | mutex_lock(&local->iflist_mtx); | |
3384d757 | 815 | __iterate_interfaces(local, iter_flags, iterator, data); |
c771c9d8 | 816 | mutex_unlock(&local->iflist_mtx); |
2f561feb | 817 | } |
3384d757 | 818 | EXPORT_SYMBOL_GPL(ieee80211_iterate_interfaces); |
2f561feb ID |
819 | |
820 | void ieee80211_iterate_active_interfaces_atomic( | |
8b2c9824 | 821 | struct ieee80211_hw *hw, u32 iter_flags, |
2f561feb ID |
822 | void (*iterator)(void *data, u8 *mac, |
823 | struct ieee80211_vif *vif), | |
824 | void *data) | |
825 | { | |
826 | struct ieee80211_local *local = hw_to_local(hw); | |
2f561feb | 827 | |
e38bad47 | 828 | rcu_read_lock(); |
3384d757 AN |
829 | __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, |
830 | iterator, data); | |
c7c71066 JB |
831 | rcu_read_unlock(); |
832 | } | |
833 | EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic); | |
dabeb344 | 834 | |
a05829a7 | 835 | void ieee80211_iterate_active_interfaces_mtx( |
c7c71066 JB |
836 | struct ieee80211_hw *hw, u32 iter_flags, |
837 | void (*iterator)(void *data, u8 *mac, | |
838 | struct ieee80211_vif *vif), | |
839 | void *data) | |
840 | { | |
841 | struct ieee80211_local *local = hw_to_local(hw); | |
e38bad47 | 842 | |
a05829a7 | 843 | lockdep_assert_wiphy(hw->wiphy); |
685fb72b | 844 | |
3384d757 AN |
845 | __iterate_interfaces(local, iter_flags | IEEE80211_IFACE_ITER_ACTIVE, |
846 | iterator, data); | |
dabeb344 | 847 | } |
a05829a7 | 848 | EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_mtx); |
37ffc8da | 849 | |
0fc1e049 AN |
850 | static void __iterate_stations(struct ieee80211_local *local, |
851 | void (*iterator)(void *data, | |
852 | struct ieee80211_sta *sta), | |
853 | void *data) | |
854 | { | |
855 | struct sta_info *sta; | |
856 | ||
857 | list_for_each_entry_rcu(sta, &local->sta_list, list) { | |
858 | if (!sta->uploaded) | |
859 | continue; | |
860 | ||
861 | iterator(data, &sta->sta); | |
862 | } | |
863 | } | |
864 | ||
865 | void ieee80211_iterate_stations_atomic(struct ieee80211_hw *hw, | |
866 | void (*iterator)(void *data, | |
867 | struct ieee80211_sta *sta), | |
868 | void *data) | |
869 | { | |
870 | struct ieee80211_local *local = hw_to_local(hw); | |
871 | ||
872 | rcu_read_lock(); | |
873 | __iterate_stations(local, iterator, data); | |
874 | rcu_read_unlock(); | |
875 | } | |
876 | EXPORT_SYMBOL_GPL(ieee80211_iterate_stations_atomic); | |
877 | ||
ad7e718c JB |
878 | struct ieee80211_vif *wdev_to_ieee80211_vif(struct wireless_dev *wdev) |
879 | { | |
880 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); | |
881 | ||
882 | if (!ieee80211_sdata_running(sdata) || | |
883 | !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) | |
884 | return NULL; | |
885 | return &sdata->vif; | |
886 | } | |
887 | EXPORT_SYMBOL_GPL(wdev_to_ieee80211_vif); | |
888 | ||
dc5a1ad7 EG |
889 | struct wireless_dev *ieee80211_vif_to_wdev(struct ieee80211_vif *vif) |
890 | { | |
6513e98e JB |
891 | struct ieee80211_sub_if_data *sdata; |
892 | ||
893 | if (!vif) | |
894 | return NULL; | |
895 | ||
896 | sdata = vif_to_sdata(vif); | |
dc5a1ad7 EG |
897 | |
898 | if (!ieee80211_sdata_running(sdata) || | |
899 | !(sdata->flags & IEEE80211_SDATA_IN_DRIVER)) | |
900 | return NULL; | |
901 | ||
902 | return &sdata->wdev; | |
903 | } | |
904 | EXPORT_SYMBOL_GPL(ieee80211_vif_to_wdev); | |
905 | ||
42935eca LR |
906 | /* |
907 | * Nothing should have been stuffed into the workqueue during | |
4afaff17 EG |
908 | * the suspend->resume cycle. Since we can't check each caller |
909 | * of this function if we are already quiescing / suspended, | |
910 | * check here and don't WARN since this can actually happen when | |
911 | * the rx path (for example) is racing against __ieee80211_suspend | |
912 | * and suspending / quiescing was set after the rx path checked | |
913 | * them. | |
42935eca LR |
914 | */ |
915 | static bool ieee80211_can_queue_work(struct ieee80211_local *local) | |
916 | { | |
4afaff17 EG |
917 | if (local->quiescing || (local->suspended && !local->resuming)) { |
918 | pr_warn("queueing ieee80211 work while going to suspend\n"); | |
ceb99fe0 | 919 | return false; |
4afaff17 | 920 | } |
42935eca LR |
921 | |
922 | return true; | |
923 | } | |
924 | ||
925 | void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work) | |
926 | { | |
927 | struct ieee80211_local *local = hw_to_local(hw); | |
928 | ||
929 | if (!ieee80211_can_queue_work(local)) | |
930 | return; | |
931 | ||
932 | queue_work(local->workqueue, work); | |
933 | } | |
934 | EXPORT_SYMBOL(ieee80211_queue_work); | |
935 | ||
936 | void ieee80211_queue_delayed_work(struct ieee80211_hw *hw, | |
937 | struct delayed_work *dwork, | |
938 | unsigned long delay) | |
939 | { | |
940 | struct ieee80211_local *local = hw_to_local(hw); | |
941 | ||
942 | if (!ieee80211_can_queue_work(local)) | |
943 | return; | |
944 | ||
945 | queue_delayed_work(local->workqueue, dwork, delay); | |
946 | } | |
947 | EXPORT_SYMBOL(ieee80211_queue_delayed_work); | |
948 | ||
e4d005b8 JB |
949 | static void ieee80211_parse_extension_element(u32 *crc, |
950 | const struct element *elem, | |
951 | struct ieee802_11_elems *elems) | |
952 | { | |
953 | const void *data = elem->data + 1; | |
954 | u8 len = elem->datalen - 1; | |
955 | ||
956 | switch (elem->data[0]) { | |
957 | case WLAN_EID_EXT_HE_MU_EDCA: | |
958 | if (len == sizeof(*elems->mu_edca_param_set)) { | |
959 | elems->mu_edca_param_set = data; | |
960 | if (crc) | |
961 | *crc = crc32_be(*crc, (void *)elem, | |
962 | elem->datalen + 2); | |
963 | } | |
964 | break; | |
965 | case WLAN_EID_EXT_HE_CAPABILITY: | |
966 | elems->he_cap = data; | |
967 | elems->he_cap_len = len; | |
968 | break; | |
969 | case WLAN_EID_EXT_HE_OPERATION: | |
970 | if (len >= sizeof(*elems->he_operation) && | |
0f7e90fa | 971 | len >= ieee80211_he_oper_size(data) - 1) { |
660d81da JB |
972 | if (crc) |
973 | *crc = crc32_be(*crc, (void *)elem, | |
974 | elem->datalen + 2); | |
e4d005b8 | 975 | elems->he_operation = data; |
660d81da | 976 | } |
e4d005b8 JB |
977 | break; |
978 | case WLAN_EID_EXT_UORA: | |
979 | if (len == 1) | |
980 | elems->uora_element = data; | |
981 | break; | |
982 | case WLAN_EID_EXT_MAX_CHANNEL_SWITCH_TIME: | |
983 | if (len == 3) | |
984 | elems->max_channel_switch_time = data; | |
985 | break; | |
986 | case WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION: | |
987 | if (len == sizeof(*elems->mbssid_config_ie)) | |
988 | elems->mbssid_config_ie = data; | |
989 | break; | |
990 | case WLAN_EID_EXT_HE_SPR: | |
991 | if (len >= sizeof(*elems->he_spr) && | |
992 | len >= ieee80211_he_spr_size(data)) | |
993 | elems->he_spr = data; | |
994 | break; | |
a6cf28e0 RM |
995 | case WLAN_EID_EXT_HE_6GHZ_CAPA: |
996 | if (len == sizeof(*elems->he_6ghz_capa)) | |
997 | elems->he_6ghz_capa = data; | |
998 | break; | |
e4d005b8 JB |
999 | } |
1000 | } | |
1001 | ||
78ac51f8 SS |
1002 | static u32 |
1003 | _ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, | |
1004 | struct ieee802_11_elems *elems, | |
671042a4 SS |
1005 | u64 filter, u32 crc, |
1006 | const struct element *check_inherit) | |
dd76986b | 1007 | { |
671042a4 | 1008 | const struct element *elem; |
dd76986b | 1009 | bool calc_crc = filter != 0; |
fcff4f10 | 1010 | DECLARE_BITMAP(seen_elems, 256); |
b2e506bf | 1011 | const u8 *ie; |
dd76986b | 1012 | |
fcff4f10 | 1013 | bitmap_zero(seen_elems, 256); |
dd76986b | 1014 | |
c17e28d1 | 1015 | for_each_element(elem, start, len) { |
fcff4f10 | 1016 | bool elem_parse_failed; |
c17e28d1 JB |
1017 | u8 id = elem->id; |
1018 | u8 elen = elem->datalen; | |
1019 | const u8 *pos = elem->data; | |
fcff4f10 | 1020 | |
671042a4 SS |
1021 | if (check_inherit && |
1022 | !cfg80211_is_element_inherited(elem, | |
1023 | check_inherit)) | |
1024 | continue; | |
1025 | ||
9690fb16 JB |
1026 | switch (id) { |
1027 | case WLAN_EID_SSID: | |
1028 | case WLAN_EID_SUPP_RATES: | |
1029 | case WLAN_EID_FH_PARAMS: | |
1030 | case WLAN_EID_DS_PARAMS: | |
1031 | case WLAN_EID_CF_PARAMS: | |
1032 | case WLAN_EID_TIM: | |
1033 | case WLAN_EID_IBSS_PARAMS: | |
1034 | case WLAN_EID_CHALLENGE: | |
1035 | case WLAN_EID_RSN: | |
1036 | case WLAN_EID_ERP_INFO: | |
1037 | case WLAN_EID_EXT_SUPP_RATES: | |
1038 | case WLAN_EID_HT_CAPABILITY: | |
1039 | case WLAN_EID_HT_OPERATION: | |
1040 | case WLAN_EID_VHT_CAPABILITY: | |
1041 | case WLAN_EID_VHT_OPERATION: | |
1042 | case WLAN_EID_MESH_ID: | |
1043 | case WLAN_EID_MESH_CONFIG: | |
1044 | case WLAN_EID_PEER_MGMT: | |
1045 | case WLAN_EID_PREQ: | |
1046 | case WLAN_EID_PREP: | |
1047 | case WLAN_EID_PERR: | |
1048 | case WLAN_EID_RANN: | |
1049 | case WLAN_EID_CHANNEL_SWITCH: | |
1050 | case WLAN_EID_EXT_CHANSWITCH_ANN: | |
1051 | case WLAN_EID_COUNTRY: | |
1052 | case WLAN_EID_PWR_CONSTRAINT: | |
1053 | case WLAN_EID_TIMEOUT_INTERVAL: | |
85220d71 | 1054 | case WLAN_EID_SECONDARY_CHANNEL_OFFSET: |
b2e506bf | 1055 | case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: |
8f2535b9 | 1056 | case WLAN_EID_CHAN_SWITCH_PARAM: |
9041c1fa | 1057 | case WLAN_EID_EXT_CAPABILITY: |
53837584 AN |
1058 | case WLAN_EID_CHAN_SWITCH_TIMING: |
1059 | case WLAN_EID_LINK_ID: | |
e38a017b | 1060 | case WLAN_EID_BSS_MAX_IDLE_PERIOD: |
c0058df7 | 1061 | case WLAN_EID_RSNX: |
cd418ba6 TP |
1062 | case WLAN_EID_S1G_BCN_COMPAT: |
1063 | case WLAN_EID_S1G_CAPABILITIES: | |
1064 | case WLAN_EID_S1G_OPERATION: | |
1d00ce80 | 1065 | case WLAN_EID_AID_RESPONSE: |
cd418ba6 | 1066 | case WLAN_EID_S1G_SHORT_BCN_INTERVAL: |
b2e506bf JB |
1067 | /* |
1068 | * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible | |
1069 | * that if the content gets bigger it might be needed more than once | |
1070 | */ | |
9690fb16 JB |
1071 | if (test_bit(id, seen_elems)) { |
1072 | elems->parse_error = true; | |
9690fb16 JB |
1073 | continue; |
1074 | } | |
1075 | break; | |
fcff4f10 | 1076 | } |
dd76986b JB |
1077 | |
1078 | if (calc_crc && id < 64 && (filter & (1ULL << id))) | |
1079 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1080 | ||
fcff4f10 PS |
1081 | elem_parse_failed = false; |
1082 | ||
dd76986b | 1083 | switch (id) { |
53837584 AN |
1084 | case WLAN_EID_LINK_ID: |
1085 | if (elen + 2 != sizeof(struct ieee80211_tdls_lnkie)) { | |
1086 | elem_parse_failed = true; | |
1087 | break; | |
1088 | } | |
1089 | elems->lnk_id = (void *)(pos - 2); | |
1090 | break; | |
1091 | case WLAN_EID_CHAN_SWITCH_TIMING: | |
1092 | if (elen != sizeof(struct ieee80211_ch_switch_timing)) { | |
1093 | elem_parse_failed = true; | |
1094 | break; | |
1095 | } | |
1096 | elems->ch_sw_timing = (void *)pos; | |
1097 | break; | |
9041c1fa AN |
1098 | case WLAN_EID_EXT_CAPABILITY: |
1099 | elems->ext_capab = pos; | |
1100 | elems->ext_capab_len = elen; | |
1101 | break; | |
dd76986b JB |
1102 | case WLAN_EID_SSID: |
1103 | elems->ssid = pos; | |
1104 | elems->ssid_len = elen; | |
1105 | break; | |
1106 | case WLAN_EID_SUPP_RATES: | |
1107 | elems->supp_rates = pos; | |
1108 | elems->supp_rates_len = elen; | |
1109 | break; | |
dd76986b | 1110 | case WLAN_EID_DS_PARAMS: |
1cd8e88e JB |
1111 | if (elen >= 1) |
1112 | elems->ds_params = pos; | |
1113 | else | |
1114 | elem_parse_failed = true; | |
dd76986b | 1115 | break; |
dd76986b JB |
1116 | case WLAN_EID_TIM: |
1117 | if (elen >= sizeof(struct ieee80211_tim_ie)) { | |
1118 | elems->tim = (void *)pos; | |
1119 | elems->tim_len = elen; | |
fcff4f10 PS |
1120 | } else |
1121 | elem_parse_failed = true; | |
dd76986b | 1122 | break; |
dd76986b JB |
1123 | case WLAN_EID_CHALLENGE: |
1124 | elems->challenge = pos; | |
1125 | elems->challenge_len = elen; | |
1126 | break; | |
1127 | case WLAN_EID_VENDOR_SPECIFIC: | |
1128 | if (elen >= 4 && pos[0] == 0x00 && pos[1] == 0x50 && | |
1129 | pos[2] == 0xf2) { | |
1130 | /* Microsoft OUI (00:50:F2) */ | |
1131 | ||
1132 | if (calc_crc) | |
1133 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1134 | ||
441a33ba | 1135 | if (elen >= 5 && pos[3] == 2) { |
dd76986b JB |
1136 | /* OUI Type 2 - WMM IE */ |
1137 | if (pos[4] == 0) { | |
1138 | elems->wmm_info = pos; | |
1139 | elems->wmm_info_len = elen; | |
1140 | } else if (pos[4] == 1) { | |
1141 | elems->wmm_param = pos; | |
1142 | elems->wmm_param_len = elen; | |
1143 | } | |
1144 | } | |
1145 | } | |
1146 | break; | |
1147 | case WLAN_EID_RSN: | |
1148 | elems->rsn = pos; | |
1149 | elems->rsn_len = elen; | |
1150 | break; | |
1151 | case WLAN_EID_ERP_INFO: | |
1946bed9 JB |
1152 | if (elen >= 1) |
1153 | elems->erp_info = pos; | |
1154 | else | |
1155 | elem_parse_failed = true; | |
dd76986b JB |
1156 | break; |
1157 | case WLAN_EID_EXT_SUPP_RATES: | |
1158 | elems->ext_supp_rates = pos; | |
1159 | elems->ext_supp_rates_len = elen; | |
1160 | break; | |
1161 | case WLAN_EID_HT_CAPABILITY: | |
1162 | if (elen >= sizeof(struct ieee80211_ht_cap)) | |
1163 | elems->ht_cap_elem = (void *)pos; | |
fcff4f10 PS |
1164 | else |
1165 | elem_parse_failed = true; | |
dd76986b | 1166 | break; |
074d46d1 JB |
1167 | case WLAN_EID_HT_OPERATION: |
1168 | if (elen >= sizeof(struct ieee80211_ht_operation)) | |
1169 | elems->ht_operation = (void *)pos; | |
fcff4f10 PS |
1170 | else |
1171 | elem_parse_failed = true; | |
dd76986b | 1172 | break; |
818255ea MP |
1173 | case WLAN_EID_VHT_CAPABILITY: |
1174 | if (elen >= sizeof(struct ieee80211_vht_cap)) | |
1175 | elems->vht_cap_elem = (void *)pos; | |
1176 | else | |
1177 | elem_parse_failed = true; | |
1178 | break; | |
1179 | case WLAN_EID_VHT_OPERATION: | |
a04564c9 | 1180 | if (elen >= sizeof(struct ieee80211_vht_operation)) { |
818255ea | 1181 | elems->vht_operation = (void *)pos; |
a04564c9 JB |
1182 | if (calc_crc) |
1183 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1184 | break; | |
1185 | } | |
1186 | elem_parse_failed = true; | |
818255ea | 1187 | break; |
bee7f586 | 1188 | case WLAN_EID_OPMODE_NOTIF: |
a04564c9 | 1189 | if (elen > 0) { |
bee7f586 | 1190 | elems->opmode_notif = pos; |
a04564c9 JB |
1191 | if (calc_crc) |
1192 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1193 | break; | |
1194 | } | |
1195 | elem_parse_failed = true; | |
bee7f586 | 1196 | break; |
dd76986b JB |
1197 | case WLAN_EID_MESH_ID: |
1198 | elems->mesh_id = pos; | |
1199 | elems->mesh_id_len = elen; | |
1200 | break; | |
1201 | case WLAN_EID_MESH_CONFIG: | |
1202 | if (elen >= sizeof(struct ieee80211_meshconf_ie)) | |
1203 | elems->mesh_config = (void *)pos; | |
fcff4f10 PS |
1204 | else |
1205 | elem_parse_failed = true; | |
dd76986b JB |
1206 | break; |
1207 | case WLAN_EID_PEER_MGMT: | |
1208 | elems->peering = pos; | |
1209 | elems->peering_len = elen; | |
1210 | break; | |
3f52b7e3 MP |
1211 | case WLAN_EID_MESH_AWAKE_WINDOW: |
1212 | if (elen >= 2) | |
1213 | elems->awake_window = (void *)pos; | |
1214 | break; | |
dd76986b JB |
1215 | case WLAN_EID_PREQ: |
1216 | elems->preq = pos; | |
1217 | elems->preq_len = elen; | |
1218 | break; | |
1219 | case WLAN_EID_PREP: | |
1220 | elems->prep = pos; | |
1221 | elems->prep_len = elen; | |
1222 | break; | |
1223 | case WLAN_EID_PERR: | |
1224 | elems->perr = pos; | |
1225 | elems->perr_len = elen; | |
1226 | break; | |
1227 | case WLAN_EID_RANN: | |
1228 | if (elen >= sizeof(struct ieee80211_rann_ie)) | |
1229 | elems->rann = (void *)pos; | |
fcff4f10 PS |
1230 | else |
1231 | elem_parse_failed = true; | |
dd76986b JB |
1232 | break; |
1233 | case WLAN_EID_CHANNEL_SWITCH: | |
5bc1420b JB |
1234 | if (elen != sizeof(struct ieee80211_channel_sw_ie)) { |
1235 | elem_parse_failed = true; | |
1236 | break; | |
1237 | } | |
1238 | elems->ch_switch_ie = (void *)pos; | |
dd76986b | 1239 | break; |
b4f286a1 JB |
1240 | case WLAN_EID_EXT_CHANSWITCH_ANN: |
1241 | if (elen != sizeof(struct ieee80211_ext_chansw_ie)) { | |
1242 | elem_parse_failed = true; | |
1243 | break; | |
1244 | } | |
1245 | elems->ext_chansw_ie = (void *)pos; | |
1246 | break; | |
85220d71 JB |
1247 | case WLAN_EID_SECONDARY_CHANNEL_OFFSET: |
1248 | if (elen != sizeof(struct ieee80211_sec_chan_offs_ie)) { | |
1249 | elem_parse_failed = true; | |
1250 | break; | |
1251 | } | |
1252 | elems->sec_chan_offs = (void *)pos; | |
1253 | break; | |
8f2535b9 CYY |
1254 | case WLAN_EID_CHAN_SWITCH_PARAM: |
1255 | if (elen != | |
1256 | sizeof(*elems->mesh_chansw_params_ie)) { | |
1257 | elem_parse_failed = true; | |
1258 | break; | |
1259 | } | |
1260 | elems->mesh_chansw_params_ie = (void *)pos; | |
1261 | break; | |
b2e506bf JB |
1262 | case WLAN_EID_WIDE_BW_CHANNEL_SWITCH: |
1263 | if (!action || | |
1264 | elen != sizeof(*elems->wide_bw_chansw_ie)) { | |
1265 | elem_parse_failed = true; | |
1266 | break; | |
1267 | } | |
1268 | elems->wide_bw_chansw_ie = (void *)pos; | |
1269 | break; | |
1270 | case WLAN_EID_CHANNEL_SWITCH_WRAPPER: | |
1271 | if (action) { | |
1272 | elem_parse_failed = true; | |
1273 | break; | |
1274 | } | |
1275 | /* | |
1276 | * This is a bit tricky, but as we only care about | |
1277 | * the wide bandwidth channel switch element, so | |
1278 | * just parse it out manually. | |
1279 | */ | |
1280 | ie = cfg80211_find_ie(WLAN_EID_WIDE_BW_CHANNEL_SWITCH, | |
1281 | pos, elen); | |
1282 | if (ie) { | |
1283 | if (ie[1] == sizeof(*elems->wide_bw_chansw_ie)) | |
1284 | elems->wide_bw_chansw_ie = | |
1285 | (void *)(ie + 2); | |
1286 | else | |
1287 | elem_parse_failed = true; | |
1288 | } | |
1289 | break; | |
dd76986b JB |
1290 | case WLAN_EID_COUNTRY: |
1291 | elems->country_elem = pos; | |
1292 | elems->country_elem_len = elen; | |
1293 | break; | |
1294 | case WLAN_EID_PWR_CONSTRAINT: | |
761a48d2 JB |
1295 | if (elen != 1) { |
1296 | elem_parse_failed = true; | |
1297 | break; | |
1298 | } | |
dd76986b | 1299 | elems->pwr_constr_elem = pos; |
dd76986b | 1300 | break; |
c8d65917 SG |
1301 | case WLAN_EID_CISCO_VENDOR_SPECIFIC: |
1302 | /* Lots of different options exist, but we only care | |
1303 | * about the Dynamic Transmit Power Control element. | |
1304 | * First check for the Cisco OUI, then for the DTPC | |
1305 | * tag (0x00). | |
1306 | */ | |
1307 | if (elen < 4) { | |
1308 | elem_parse_failed = true; | |
1309 | break; | |
1310 | } | |
1311 | ||
1312 | if (pos[0] != 0x00 || pos[1] != 0x40 || | |
1313 | pos[2] != 0x96 || pos[3] != 0x00) | |
1314 | break; | |
1315 | ||
1316 | if (elen != 6) { | |
1317 | elem_parse_failed = true; | |
1318 | break; | |
1319 | } | |
1320 | ||
1321 | if (calc_crc) | |
1322 | crc = crc32_be(crc, pos - 2, elen + 2); | |
1323 | ||
1324 | elems->cisco_dtpc_elem = pos; | |
1325 | break; | |
2aa485e1 JC |
1326 | case WLAN_EID_ADDBA_EXT: |
1327 | if (elen != sizeof(struct ieee80211_addba_ext_ie)) { | |
1328 | elem_parse_failed = true; | |
1329 | break; | |
1330 | } | |
1331 | elems->addba_ext_ie = (void *)pos; | |
1332 | break; | |
dd76986b | 1333 | case WLAN_EID_TIMEOUT_INTERVAL: |
79ba1d89 JB |
1334 | if (elen >= sizeof(struct ieee80211_timeout_interval_ie)) |
1335 | elems->timeout_int = (void *)pos; | |
1336 | else | |
1337 | elem_parse_failed = true; | |
dd76986b | 1338 | break; |
e38a017b AS |
1339 | case WLAN_EID_BSS_MAX_IDLE_PERIOD: |
1340 | if (elen >= sizeof(*elems->max_idle_period_ie)) | |
1341 | elems->max_idle_period_ie = (void *)pos; | |
1342 | break; | |
c0058df7 ST |
1343 | case WLAN_EID_RSNX: |
1344 | elems->rsnx = pos; | |
1345 | elems->rsnx_len = elen; | |
1346 | break; | |
41cbb0f5 | 1347 | case WLAN_EID_EXTENSION: |
e4d005b8 JB |
1348 | ieee80211_parse_extension_element(calc_crc ? |
1349 | &crc : NULL, | |
1350 | elem, elems); | |
41cbb0f5 | 1351 | break; |
cd418ba6 TP |
1352 | case WLAN_EID_S1G_CAPABILITIES: |
1353 | if (elen == sizeof(*elems->s1g_capab)) | |
1354 | elems->s1g_capab = (void *)pos; | |
1355 | else | |
1356 | elem_parse_failed = true; | |
1357 | break; | |
1358 | case WLAN_EID_S1G_OPERATION: | |
1359 | if (elen == sizeof(*elems->s1g_oper)) | |
1360 | elems->s1g_oper = (void *)pos; | |
1361 | else | |
1362 | elem_parse_failed = true; | |
1363 | break; | |
1364 | case WLAN_EID_S1G_BCN_COMPAT: | |
1365 | if (elen == sizeof(*elems->s1g_bcn_compat)) | |
1366 | elems->s1g_bcn_compat = (void *)pos; | |
1367 | else | |
1368 | elem_parse_failed = true; | |
1369 | break; | |
1d00ce80 TP |
1370 | case WLAN_EID_AID_RESPONSE: |
1371 | if (elen == sizeof(struct ieee80211_aid_response_ie)) | |
1372 | elems->aid_resp = (void *)pos; | |
1373 | else | |
1374 | elem_parse_failed = true; | |
1375 | break; | |
dd76986b JB |
1376 | default: |
1377 | break; | |
1378 | } | |
1379 | ||
fcff4f10 PS |
1380 | if (elem_parse_failed) |
1381 | elems->parse_error = true; | |
1382 | else | |
5df45690 | 1383 | __set_bit(id, seen_elems); |
dd76986b JB |
1384 | } |
1385 | ||
c17e28d1 | 1386 | if (!for_each_element_completed(elem, start, len)) |
fcff4f10 PS |
1387 | elems->parse_error = true; |
1388 | ||
dd76986b JB |
1389 | return crc; |
1390 | } | |
1391 | ||
5023b14c SS |
1392 | static size_t ieee802_11_find_bssid_profile(const u8 *start, size_t len, |
1393 | struct ieee802_11_elems *elems, | |
1394 | u8 *transmitter_bssid, | |
1395 | u8 *bss_bssid, | |
5809a5d5 | 1396 | u8 *nontransmitted_profile) |
671042a4 SS |
1397 | { |
1398 | const struct element *elem, *sub; | |
5023b14c SS |
1399 | size_t profile_len = 0; |
1400 | bool found = false; | |
671042a4 SS |
1401 | |
1402 | if (!bss_bssid || !transmitter_bssid) | |
5023b14c | 1403 | return profile_len; |
671042a4 SS |
1404 | |
1405 | for_each_element_id(elem, WLAN_EID_MULTIPLE_BSSID, start, len) { | |
1406 | if (elem->datalen < 2) | |
1407 | continue; | |
1408 | ||
1409 | for_each_element(sub, elem->data + 1, elem->datalen - 1) { | |
1410 | u8 new_bssid[ETH_ALEN]; | |
1411 | const u8 *index; | |
1412 | ||
1413 | if (sub->id != 0 || sub->datalen < 4) { | |
1414 | /* not a valid BSS profile */ | |
1415 | continue; | |
1416 | } | |
1417 | ||
1418 | if (sub->data[0] != WLAN_EID_NON_TX_BSSID_CAP || | |
1419 | sub->data[1] != 2) { | |
1420 | /* The first element of the | |
1421 | * Nontransmitted BSSID Profile is not | |
1422 | * the Nontransmitted BSSID Capability | |
1423 | * element. | |
1424 | */ | |
1425 | continue; | |
1426 | } | |
1427 | ||
5809a5d5 | 1428 | memset(nontransmitted_profile, 0, len); |
5023b14c SS |
1429 | profile_len = cfg80211_merge_profile(start, len, |
1430 | elem, | |
1431 | sub, | |
1432 | nontransmitted_profile, | |
1433 | len); | |
1434 | ||
671042a4 SS |
1435 | /* found a Nontransmitted BSSID Profile */ |
1436 | index = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, | |
5809a5d5 | 1437 | nontransmitted_profile, |
5023b14c | 1438 | profile_len); |
671042a4 SS |
1439 | if (!index || index[1] < 1 || index[2] == 0) { |
1440 | /* Invalid MBSSID Index element */ | |
1441 | continue; | |
1442 | } | |
1443 | ||
1444 | cfg80211_gen_new_bssid(transmitter_bssid, | |
1445 | elem->data[0], | |
1446 | index[2], | |
1447 | new_bssid); | |
1448 | if (ether_addr_equal(new_bssid, bss_bssid)) { | |
5023b14c | 1449 | found = true; |
671042a4 SS |
1450 | elems->bssid_index_len = index[1]; |
1451 | elems->bssid_index = (void *)&index[2]; | |
1452 | break; | |
1453 | } | |
1454 | } | |
1455 | } | |
5023b14c SS |
1456 | |
1457 | return found ? profile_len : 0; | |
671042a4 SS |
1458 | } |
1459 | ||
78ac51f8 SS |
1460 | u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action, |
1461 | struct ieee802_11_elems *elems, | |
1462 | u64 filter, u32 crc, u8 *transmitter_bssid, | |
1463 | u8 *bss_bssid) | |
1464 | { | |
671042a4 | 1465 | const struct element *non_inherit = NULL; |
5023b14c SS |
1466 | u8 *nontransmitted_profile; |
1467 | int nontransmitted_profile_len = 0; | |
671042a4 | 1468 | |
78ac51f8 SS |
1469 | memset(elems, 0, sizeof(*elems)); |
1470 | elems->ie_start = start; | |
1471 | elems->total_len = len; | |
1472 | ||
5023b14c SS |
1473 | nontransmitted_profile = kmalloc(len, GFP_ATOMIC); |
1474 | if (nontransmitted_profile) { | |
1475 | nontransmitted_profile_len = | |
1476 | ieee802_11_find_bssid_profile(start, len, elems, | |
1477 | transmitter_bssid, | |
1478 | bss_bssid, | |
5809a5d5 | 1479 | nontransmitted_profile); |
671042a4 SS |
1480 | non_inherit = |
1481 | cfg80211_find_ext_elem(WLAN_EID_EXT_NON_INHERITANCE, | |
5023b14c SS |
1482 | nontransmitted_profile, |
1483 | nontransmitted_profile_len); | |
1484 | } | |
671042a4 | 1485 | |
78ac51f8 | 1486 | crc = _ieee802_11_parse_elems_crc(start, len, action, elems, filter, |
671042a4 | 1487 | crc, non_inherit); |
78ac51f8 SS |
1488 | |
1489 | /* Override with nontransmitted profile, if found */ | |
5023b14c SS |
1490 | if (nontransmitted_profile_len) |
1491 | _ieee802_11_parse_elems_crc(nontransmitted_profile, | |
1492 | nontransmitted_profile_len, | |
671042a4 | 1493 | action, elems, 0, 0, NULL); |
78ac51f8 SS |
1494 | |
1495 | if (elems->tim && !elems->parse_error) { | |
1496 | const struct ieee80211_tim_ie *tim_ie = elems->tim; | |
1497 | ||
1498 | elems->dtim_period = tim_ie->dtim_period; | |
1499 | elems->dtim_count = tim_ie->dtim_count; | |
1500 | } | |
1501 | ||
1502 | /* Override DTIM period and count if needed */ | |
1503 | if (elems->bssid_index && | |
1504 | elems->bssid_index_len >= | |
1505 | offsetofend(struct ieee80211_bssid_index, dtim_period)) | |
1506 | elems->dtim_period = elems->bssid_index->dtim_period; | |
1507 | ||
1508 | if (elems->bssid_index && | |
1509 | elems->bssid_index_len >= | |
1510 | offsetofend(struct ieee80211_bssid_index, dtim_count)) | |
1511 | elems->dtim_count = elems->bssid_index->dtim_count; | |
1512 | ||
5023b14c SS |
1513 | kfree(nontransmitted_profile); |
1514 | ||
78ac51f8 SS |
1515 | return crc; |
1516 | } | |
1517 | ||
e552af05 HD |
1518 | void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata, |
1519 | struct ieee80211_tx_queue_params | |
1520 | *qparam, int ac) | |
1521 | { | |
1522 | struct ieee80211_chanctx_conf *chanctx_conf; | |
1523 | const struct ieee80211_reg_rule *rrule; | |
38cb87ee | 1524 | const struct ieee80211_wmm_ac *wmm_ac; |
e552af05 HD |
1525 | u16 center_freq = 0; |
1526 | ||
1527 | if (sdata->vif.type != NL80211_IFTYPE_AP && | |
1528 | sdata->vif.type != NL80211_IFTYPE_STATION) | |
1529 | return; | |
1530 | ||
1531 | rcu_read_lock(); | |
1532 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); | |
1533 | if (chanctx_conf) | |
1534 | center_freq = chanctx_conf->def.chan->center_freq; | |
1535 | ||
1536 | if (!center_freq) { | |
1537 | rcu_read_unlock(); | |
1538 | return; | |
1539 | } | |
1540 | ||
1541 | rrule = freq_reg_info(sdata->wdev.wiphy, MHZ_TO_KHZ(center_freq)); | |
1542 | ||
38cb87ee | 1543 | if (IS_ERR_OR_NULL(rrule) || !rrule->has_wmm) { |
e552af05 HD |
1544 | rcu_read_unlock(); |
1545 | return; | |
1546 | } | |
1547 | ||
1548 | if (sdata->vif.type == NL80211_IFTYPE_AP) | |
38cb87ee | 1549 | wmm_ac = &rrule->wmm_rule.ap[ac]; |
e552af05 | 1550 | else |
38cb87ee | 1551 | wmm_ac = &rrule->wmm_rule.client[ac]; |
e552af05 HD |
1552 | qparam->cw_min = max_t(u16, qparam->cw_min, wmm_ac->cw_min); |
1553 | qparam->cw_max = max_t(u16, qparam->cw_max, wmm_ac->cw_max); | |
1554 | qparam->aifs = max_t(u8, qparam->aifs, wmm_ac->aifsn); | |
abd76d25 | 1555 | qparam->txop = min_t(u16, qparam->txop, wmm_ac->cot / 32); |
e552af05 HD |
1556 | rcu_read_unlock(); |
1557 | } | |
1558 | ||
3abead59 | 1559 | void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, |
cec66283 | 1560 | bool bss_notify, bool enable_qos) |
5825fe10 JB |
1561 | { |
1562 | struct ieee80211_local *local = sdata->local; | |
1563 | struct ieee80211_tx_queue_params qparam; | |
55de908a | 1564 | struct ieee80211_chanctx_conf *chanctx_conf; |
54bcbc69 | 1565 | int ac; |
cec66283 | 1566 | bool use_11b; |
239281f8 | 1567 | bool is_ocb; /* Use another EDCA parameters if dot11OCBActivated=true */ |
aa837e1d | 1568 | int aCWmin, aCWmax; |
5825fe10 JB |
1569 | |
1570 | if (!local->ops->conf_tx) | |
1571 | return; | |
1572 | ||
54bcbc69 JB |
1573 | if (local->hw.queues < IEEE80211_NUM_ACS) |
1574 | return; | |
1575 | ||
5825fe10 JB |
1576 | memset(&qparam, 0, sizeof(qparam)); |
1577 | ||
55de908a JB |
1578 | rcu_read_lock(); |
1579 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); | |
1580 | use_11b = (chanctx_conf && | |
57fbcce3 | 1581 | chanctx_conf->def.chan->band == NL80211_BAND_2GHZ) && |
aa837e1d | 1582 | !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE); |
55de908a | 1583 | rcu_read_unlock(); |
5825fe10 | 1584 | |
239281f8 RL |
1585 | is_ocb = (sdata->vif.type == NL80211_IFTYPE_OCB); |
1586 | ||
1f4ffde8 FZ |
1587 | /* Set defaults according to 802.11-2007 Table 7-37 */ |
1588 | aCWmax = 1023; | |
1589 | if (use_11b) | |
1590 | aCWmin = 31; | |
1591 | else | |
1592 | aCWmin = 15; | |
1593 | ||
1594 | /* Confiure old 802.11b/g medium access rules. */ | |
1595 | qparam.cw_max = aCWmax; | |
1596 | qparam.cw_min = aCWmin; | |
1597 | qparam.txop = 0; | |
1598 | qparam.aifs = 2; | |
aa837e1d | 1599 | |
1f4ffde8 FZ |
1600 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { |
1601 | /* Update if QoS is enabled. */ | |
a8ce8544 SG |
1602 | if (enable_qos) { |
1603 | switch (ac) { | |
1604 | case IEEE80211_AC_BK: | |
1605 | qparam.cw_max = aCWmax; | |
1606 | qparam.cw_min = aCWmin; | |
1607 | qparam.txop = 0; | |
239281f8 RL |
1608 | if (is_ocb) |
1609 | qparam.aifs = 9; | |
1610 | else | |
1611 | qparam.aifs = 7; | |
a8ce8544 SG |
1612 | break; |
1613 | /* never happens but let's not leave undefined */ | |
1614 | default: | |
1615 | case IEEE80211_AC_BE: | |
1616 | qparam.cw_max = aCWmax; | |
1617 | qparam.cw_min = aCWmin; | |
1618 | qparam.txop = 0; | |
239281f8 RL |
1619 | if (is_ocb) |
1620 | qparam.aifs = 6; | |
1621 | else | |
1622 | qparam.aifs = 3; | |
a8ce8544 SG |
1623 | break; |
1624 | case IEEE80211_AC_VI: | |
1625 | qparam.cw_max = aCWmin; | |
1626 | qparam.cw_min = (aCWmin + 1) / 2 - 1; | |
239281f8 RL |
1627 | if (is_ocb) |
1628 | qparam.txop = 0; | |
1629 | else if (use_11b) | |
a8ce8544 SG |
1630 | qparam.txop = 6016/32; |
1631 | else | |
1632 | qparam.txop = 3008/32; | |
239281f8 RL |
1633 | |
1634 | if (is_ocb) | |
1635 | qparam.aifs = 3; | |
1636 | else | |
1637 | qparam.aifs = 2; | |
a8ce8544 SG |
1638 | break; |
1639 | case IEEE80211_AC_VO: | |
1640 | qparam.cw_max = (aCWmin + 1) / 2 - 1; | |
1641 | qparam.cw_min = (aCWmin + 1) / 4 - 1; | |
239281f8 RL |
1642 | if (is_ocb) |
1643 | qparam.txop = 0; | |
1644 | else if (use_11b) | |
a8ce8544 SG |
1645 | qparam.txop = 3264/32; |
1646 | else | |
1647 | qparam.txop = 1504/32; | |
1648 | qparam.aifs = 2; | |
1649 | break; | |
1650 | } | |
aa837e1d | 1651 | } |
e552af05 | 1652 | ieee80211_regulatory_limit_wmm_params(sdata, &qparam, ac); |
5825fe10 | 1653 | |
ab13315a KV |
1654 | qparam.uapsd = false; |
1655 | ||
54bcbc69 JB |
1656 | sdata->tx_conf[ac] = qparam; |
1657 | drv_conf_tx(local, sdata, ac, &qparam); | |
aa837e1d | 1658 | } |
e1b3ec1a | 1659 | |
f142c6b9 | 1660 | if (sdata->vif.type != NL80211_IFTYPE_MONITOR && |
708d50ed AB |
1661 | sdata->vif.type != NL80211_IFTYPE_P2P_DEVICE && |
1662 | sdata->vif.type != NL80211_IFTYPE_NAN) { | |
a8ce8544 | 1663 | sdata->vif.bss_conf.qos = enable_qos; |
3abead59 JB |
1664 | if (bss_notify) |
1665 | ieee80211_bss_info_change_notify(sdata, | |
1666 | BSS_CHANGED_QOS); | |
d9734979 | 1667 | } |
5825fe10 | 1668 | } |
e50db65c | 1669 | |
46900298 | 1670 | void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata, |
700e8ea6 | 1671 | u16 transaction, u16 auth_alg, u16 status, |
4a3cb702 | 1672 | const u8 *extra, size_t extra_len, const u8 *da, |
1672c0e3 JB |
1673 | const u8 *bssid, const u8 *key, u8 key_len, u8 key_idx, |
1674 | u32 tx_flags) | |
46900298 JB |
1675 | { |
1676 | struct ieee80211_local *local = sdata->local; | |
1677 | struct sk_buff *skb; | |
1678 | struct ieee80211_mgmt *mgmt; | |
fffd0934 | 1679 | int err; |
46900298 | 1680 | |
15e230ab | 1681 | /* 24 + 6 = header + auth_algo + auth_transaction + status_code */ |
744462a9 MS |
1682 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN + |
1683 | 24 + 6 + extra_len + IEEE80211_WEP_ICV_LEN); | |
d15b8459 | 1684 | if (!skb) |
46900298 | 1685 | return; |
d15b8459 | 1686 | |
744462a9 | 1687 | skb_reserve(skb, local->hw.extra_tx_headroom + IEEE80211_WEP_IV_LEN); |
46900298 | 1688 | |
b080db58 | 1689 | mgmt = skb_put_zero(skb, 24 + 6); |
46900298 JB |
1690 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
1691 | IEEE80211_STYPE_AUTH); | |
efa6a09d | 1692 | memcpy(mgmt->da, da, ETH_ALEN); |
47846c9b | 1693 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); |
46900298 JB |
1694 | memcpy(mgmt->bssid, bssid, ETH_ALEN); |
1695 | mgmt->u.auth.auth_alg = cpu_to_le16(auth_alg); | |
1696 | mgmt->u.auth.auth_transaction = cpu_to_le16(transaction); | |
700e8ea6 | 1697 | mgmt->u.auth.status_code = cpu_to_le16(status); |
46900298 | 1698 | if (extra) |
59ae1d12 | 1699 | skb_put_data(skb, extra, extra_len); |
46900298 | 1700 | |
fffd0934 JB |
1701 | if (auth_alg == WLAN_AUTH_SHARED_KEY && transaction == 3) { |
1702 | mgmt->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); | |
1703 | err = ieee80211_wep_encrypt(local, skb, key, key_len, key_idx); | |
1704 | WARN_ON(err); | |
1705 | } | |
1706 | ||
1672c0e3 JB |
1707 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | |
1708 | tx_flags; | |
62ae67be | 1709 | ieee80211_tx_skb(sdata, skb); |
46900298 JB |
1710 | } |
1711 | ||
6ae16775 | 1712 | void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata, |
4b08d1b6 JB |
1713 | const u8 *da, const u8 *bssid, |
1714 | u16 stype, u16 reason, | |
6ae16775 AQ |
1715 | bool send_frame, u8 *frame_buf) |
1716 | { | |
1717 | struct ieee80211_local *local = sdata->local; | |
1718 | struct sk_buff *skb; | |
1719 | struct ieee80211_mgmt *mgmt = (void *)frame_buf; | |
1720 | ||
1721 | /* build frame */ | |
1722 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype); | |
1723 | mgmt->duration = 0; /* initialize only */ | |
1724 | mgmt->seq_ctrl = 0; /* initialize only */ | |
4b08d1b6 | 1725 | memcpy(mgmt->da, da, ETH_ALEN); |
6ae16775 AQ |
1726 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); |
1727 | memcpy(mgmt->bssid, bssid, ETH_ALEN); | |
1728 | /* u.deauth.reason_code == u.disassoc.reason_code */ | |
1729 | mgmt->u.deauth.reason_code = cpu_to_le16(reason); | |
1730 | ||
1731 | if (send_frame) { | |
1732 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + | |
1733 | IEEE80211_DEAUTH_FRAME_LEN); | |
1734 | if (!skb) | |
1735 | return; | |
1736 | ||
1737 | skb_reserve(skb, local->hw.extra_tx_headroom); | |
1738 | ||
1739 | /* copy in frame */ | |
59ae1d12 | 1740 | skb_put_data(skb, mgmt, IEEE80211_DEAUTH_FRAME_LEN); |
6ae16775 AQ |
1741 | |
1742 | if (sdata->vif.type != NL80211_IFTYPE_STATION || | |
1743 | !(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED)) | |
1744 | IEEE80211_SKB_CB(skb)->flags |= | |
1745 | IEEE80211_TX_INTFL_DONT_ENCRYPT; | |
1746 | ||
1747 | ieee80211_tx_skb(sdata, skb); | |
1748 | } | |
1749 | } | |
1750 | ||
2ad2274c IP |
1751 | static u8 *ieee80211_write_he_6ghz_cap(u8 *pos, __le16 cap, u8 *end) |
1752 | { | |
1753 | if ((end - pos) < 5) | |
1754 | return pos; | |
1755 | ||
1756 | *pos++ = WLAN_EID_EXTENSION; | |
1757 | *pos++ = 1 + sizeof(cap); | |
1758 | *pos++ = WLAN_EID_EXT_HE_6GHZ_CAPA; | |
1759 | memcpy(pos, &cap, sizeof(cap)); | |
1760 | ||
1761 | return pos + 2; | |
1762 | } | |
1763 | ||
1764 | static int ieee80211_build_preq_ies_band(struct ieee80211_sub_if_data *sdata, | |
c56ef672 DS |
1765 | u8 *buffer, size_t buffer_len, |
1766 | const u8 *ie, size_t ie_len, | |
57fbcce3 | 1767 | enum nl80211_band band, |
c56ef672 DS |
1768 | u32 rate_mask, |
1769 | struct cfg80211_chan_def *chandef, | |
00387f32 | 1770 | size_t *offset, u32 flags) |
de95a54b | 1771 | { |
2ad2274c | 1772 | struct ieee80211_local *local = sdata->local; |
de95a54b | 1773 | struct ieee80211_supported_band *sband; |
41cbb0f5 | 1774 | const struct ieee80211_sta_he_cap *he_cap; |
c604b9f2 | 1775 | u8 *pos = buffer, *end = buffer + buffer_len; |
c56ef672 | 1776 | size_t noffset; |
8e664fb3 | 1777 | int supp_rates_len, i; |
8dcb2003 JM |
1778 | u8 rates[32]; |
1779 | int num_rates; | |
1780 | int ext_rates_len; | |
2103dec1 SW |
1781 | int shift; |
1782 | u32 rate_flags; | |
40a11ca8 | 1783 | bool have_80mhz = false; |
de95a54b | 1784 | |
c56ef672 DS |
1785 | *offset = 0; |
1786 | ||
4d36ec58 | 1787 | sband = local->hw.wiphy->bands[band]; |
d811b3d5 AN |
1788 | if (WARN_ON_ONCE(!sband)) |
1789 | return 0; | |
de95a54b | 1790 | |
2103dec1 SW |
1791 | rate_flags = ieee80211_chandef_rate_flags(chandef); |
1792 | shift = ieee80211_chandef_get_shift(chandef); | |
1793 | ||
8dcb2003 JM |
1794 | num_rates = 0; |
1795 | for (i = 0; i < sband->n_bitrates; i++) { | |
1796 | if ((BIT(i) & rate_mask) == 0) | |
1797 | continue; /* skip rate */ | |
2103dec1 SW |
1798 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) |
1799 | continue; | |
1800 | ||
1801 | rates[num_rates++] = | |
1802 | (u8) DIV_ROUND_UP(sband->bitrates[i].bitrate, | |
1803 | (1 << shift) * 5); | |
8dcb2003 JM |
1804 | } |
1805 | ||
1806 | supp_rates_len = min_t(int, num_rates, 8); | |
8e664fb3 | 1807 | |
c604b9f2 JB |
1808 | if (end - pos < 2 + supp_rates_len) |
1809 | goto out_err; | |
de95a54b | 1810 | *pos++ = WLAN_EID_SUPP_RATES; |
8e664fb3 | 1811 | *pos++ = supp_rates_len; |
8dcb2003 JM |
1812 | memcpy(pos, rates, supp_rates_len); |
1813 | pos += supp_rates_len; | |
8e664fb3 JB |
1814 | |
1815 | /* insert "request information" if in custom IEs */ | |
1816 | if (ie && ie_len) { | |
1817 | static const u8 before_extrates[] = { | |
1818 | WLAN_EID_SSID, | |
1819 | WLAN_EID_SUPP_RATES, | |
1820 | WLAN_EID_REQUEST, | |
1821 | }; | |
1822 | noffset = ieee80211_ie_split(ie, ie_len, | |
1823 | before_extrates, | |
1824 | ARRAY_SIZE(before_extrates), | |
c56ef672 DS |
1825 | *offset); |
1826 | if (end - pos < noffset - *offset) | |
c604b9f2 | 1827 | goto out_err; |
c56ef672 DS |
1828 | memcpy(pos, ie + *offset, noffset - *offset); |
1829 | pos += noffset - *offset; | |
1830 | *offset = noffset; | |
8e664fb3 JB |
1831 | } |
1832 | ||
8dcb2003 JM |
1833 | ext_rates_len = num_rates - supp_rates_len; |
1834 | if (ext_rates_len > 0) { | |
c604b9f2 JB |
1835 | if (end - pos < 2 + ext_rates_len) |
1836 | goto out_err; | |
8e664fb3 | 1837 | *pos++ = WLAN_EID_EXT_SUPP_RATES; |
8dcb2003 JM |
1838 | *pos++ = ext_rates_len; |
1839 | memcpy(pos, rates + supp_rates_len, ext_rates_len); | |
1840 | pos += ext_rates_len; | |
8e664fb3 JB |
1841 | } |
1842 | ||
57fbcce3 | 1843 | if (chandef->chan && sband->band == NL80211_BAND_2GHZ) { |
c604b9f2 JB |
1844 | if (end - pos < 3) |
1845 | goto out_err; | |
651b5225 JM |
1846 | *pos++ = WLAN_EID_DS_PARAMS; |
1847 | *pos++ = 1; | |
2103dec1 SW |
1848 | *pos++ = ieee80211_frequency_to_channel( |
1849 | chandef->chan->center_freq); | |
651b5225 JM |
1850 | } |
1851 | ||
b9771d41 JB |
1852 | if (flags & IEEE80211_PROBE_FLAG_MIN_CONTENT) |
1853 | goto done; | |
1854 | ||
8e664fb3 JB |
1855 | /* insert custom IEs that go before HT */ |
1856 | if (ie && ie_len) { | |
1857 | static const u8 before_ht[] = { | |
a7f26d80 JB |
1858 | /* |
1859 | * no need to list the ones split off already | |
1860 | * (or generated here) | |
1861 | */ | |
8e664fb3 JB |
1862 | WLAN_EID_DS_PARAMS, |
1863 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, | |
1864 | }; | |
1865 | noffset = ieee80211_ie_split(ie, ie_len, | |
1866 | before_ht, ARRAY_SIZE(before_ht), | |
c56ef672 DS |
1867 | *offset); |
1868 | if (end - pos < noffset - *offset) | |
c604b9f2 | 1869 | goto out_err; |
c56ef672 DS |
1870 | memcpy(pos, ie + *offset, noffset - *offset); |
1871 | pos += noffset - *offset; | |
1872 | *offset = noffset; | |
de95a54b JB |
1873 | } |
1874 | ||
c604b9f2 JB |
1875 | if (sband->ht_cap.ht_supported) { |
1876 | if (end - pos < 2 + sizeof(struct ieee80211_ht_cap)) | |
1877 | goto out_err; | |
ef96a842 BG |
1878 | pos = ieee80211_ie_build_ht_cap(pos, &sband->ht_cap, |
1879 | sband->ht_cap.cap); | |
c604b9f2 | 1880 | } |
5ef2d41a | 1881 | |
4d952300 | 1882 | /* insert custom IEs that go before VHT */ |
8e664fb3 | 1883 | if (ie && ie_len) { |
4d952300 | 1884 | static const u8 before_vht[] = { |
a7f26d80 JB |
1885 | /* |
1886 | * no need to list the ones split off already | |
1887 | * (or generated here) | |
1888 | */ | |
4d952300 JB |
1889 | WLAN_EID_BSS_COEX_2040, |
1890 | WLAN_EID_EXT_CAPABILITY, | |
1891 | WLAN_EID_SSID_LIST, | |
1892 | WLAN_EID_CHANNEL_USAGE, | |
1893 | WLAN_EID_INTERWORKING, | |
b44eebea | 1894 | WLAN_EID_MESH_ID, |
a7f26d80 | 1895 | /* 60 GHz (Multi-band, DMG, MMS) can't happen */ |
4d952300 JB |
1896 | }; |
1897 | noffset = ieee80211_ie_split(ie, ie_len, | |
1898 | before_vht, ARRAY_SIZE(before_vht), | |
c56ef672 DS |
1899 | *offset); |
1900 | if (end - pos < noffset - *offset) | |
c604b9f2 | 1901 | goto out_err; |
c56ef672 DS |
1902 | memcpy(pos, ie + *offset, noffset - *offset); |
1903 | pos += noffset - *offset; | |
1904 | *offset = noffset; | |
de95a54b JB |
1905 | } |
1906 | ||
40a11ca8 JB |
1907 | /* Check if any channel in this sband supports at least 80 MHz */ |
1908 | for (i = 0; i < sband->n_channels; i++) { | |
fa44b988 AN |
1909 | if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | |
1910 | IEEE80211_CHAN_NO_80MHZ)) | |
1911 | continue; | |
1912 | ||
1913 | have_80mhz = true; | |
1914 | break; | |
40a11ca8 JB |
1915 | } |
1916 | ||
1917 | if (sband->vht_cap.vht_supported && have_80mhz) { | |
c604b9f2 JB |
1918 | if (end - pos < 2 + sizeof(struct ieee80211_vht_cap)) |
1919 | goto out_err; | |
ba0afa2f MP |
1920 | pos = ieee80211_ie_build_vht_cap(pos, &sband->vht_cap, |
1921 | sband->vht_cap.cap); | |
c604b9f2 | 1922 | } |
ba0afa2f | 1923 | |
41cbb0f5 LC |
1924 | /* insert custom IEs that go before HE */ |
1925 | if (ie && ie_len) { | |
1926 | static const u8 before_he[] = { | |
1927 | /* | |
1928 | * no need to list the ones split off before VHT | |
1929 | * or generated here | |
1930 | */ | |
1931 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_REQ_PARAMS, | |
1932 | WLAN_EID_AP_CSN, | |
1933 | /* TODO: add 11ah/11aj/11ak elements */ | |
1934 | }; | |
1935 | noffset = ieee80211_ie_split(ie, ie_len, | |
1936 | before_he, ARRAY_SIZE(before_he), | |
1937 | *offset); | |
1938 | if (end - pos < noffset - *offset) | |
1939 | goto out_err; | |
1940 | memcpy(pos, ie + *offset, noffset - *offset); | |
1941 | pos += noffset - *offset; | |
1942 | *offset = noffset; | |
1943 | } | |
1944 | ||
1945 | he_cap = ieee80211_get_he_sta_cap(sband); | |
1946 | if (he_cap) { | |
1947 | pos = ieee80211_ie_build_he_cap(pos, he_cap, end); | |
1948 | if (!pos) | |
1949 | goto out_err; | |
2ad2274c IP |
1950 | |
1951 | if (sband->band == NL80211_BAND_6GHZ) { | |
1952 | enum nl80211_iftype iftype = | |
1953 | ieee80211_vif_type_p2p(&sdata->vif); | |
1954 | __le16 cap = ieee80211_get_he_6ghz_capa(sband, iftype); | |
1955 | ||
1956 | pos = ieee80211_write_he_6ghz_cap(pos, cap, end); | |
1957 | } | |
41cbb0f5 LC |
1958 | } |
1959 | ||
1960 | /* | |
1961 | * If adding more here, adjust code in main.c | |
1962 | * that calculates local->scan_ies_len. | |
1963 | */ | |
1964 | ||
c604b9f2 JB |
1965 | return pos - buffer; |
1966 | out_err: | |
1967 | WARN_ONCE(1, "not enough space for preq IEs\n"); | |
b9771d41 | 1968 | done: |
de95a54b JB |
1969 | return pos - buffer; |
1970 | } | |
1971 | ||
2ad2274c | 1972 | int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer, |
c56ef672 DS |
1973 | size_t buffer_len, |
1974 | struct ieee80211_scan_ies *ie_desc, | |
1975 | const u8 *ie, size_t ie_len, | |
1976 | u8 bands_used, u32 *rate_masks, | |
00387f32 JB |
1977 | struct cfg80211_chan_def *chandef, |
1978 | u32 flags) | |
c56ef672 DS |
1979 | { |
1980 | size_t pos = 0, old_pos = 0, custom_ie_offset = 0; | |
1981 | int i; | |
1982 | ||
1983 | memset(ie_desc, 0, sizeof(*ie_desc)); | |
1984 | ||
57fbcce3 | 1985 | for (i = 0; i < NUM_NL80211_BANDS; i++) { |
c56ef672 | 1986 | if (bands_used & BIT(i)) { |
2ad2274c | 1987 | pos += ieee80211_build_preq_ies_band(sdata, |
c56ef672 DS |
1988 | buffer + pos, |
1989 | buffer_len - pos, | |
1990 | ie, ie_len, i, | |
1991 | rate_masks[i], | |
1992 | chandef, | |
00387f32 JB |
1993 | &custom_ie_offset, |
1994 | flags); | |
c56ef672 DS |
1995 | ie_desc->ies[i] = buffer + old_pos; |
1996 | ie_desc->len[i] = pos - old_pos; | |
1997 | old_pos = pos; | |
1998 | } | |
1999 | } | |
2000 | ||
2001 | /* add any remaining custom IEs */ | |
2002 | if (ie && ie_len) { | |
2003 | if (WARN_ONCE(buffer_len - pos < ie_len - custom_ie_offset, | |
2004 | "not enough space for preq custom IEs\n")) | |
2005 | return pos; | |
2006 | memcpy(buffer + pos, ie + custom_ie_offset, | |
2007 | ie_len - custom_ie_offset); | |
2008 | ie_desc->common_ies = buffer + pos; | |
2009 | ie_desc->common_ie_len = ie_len - custom_ie_offset; | |
2010 | pos += ie_len - custom_ie_offset; | |
2011 | } | |
2012 | ||
2013 | return pos; | |
2014 | }; | |
2015 | ||
a619a4c0 | 2016 | struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata, |
a344d677 JB |
2017 | const u8 *src, const u8 *dst, |
2018 | u32 ratemask, | |
6b77863b | 2019 | struct ieee80211_channel *chan, |
a619a4c0 | 2020 | const u8 *ssid, size_t ssid_len, |
a806c558 | 2021 | const u8 *ie, size_t ie_len, |
00387f32 | 2022 | u32 flags) |
46900298 JB |
2023 | { |
2024 | struct ieee80211_local *local = sdata->local; | |
2103dec1 | 2025 | struct cfg80211_chan_def chandef; |
46900298 JB |
2026 | struct sk_buff *skb; |
2027 | struct ieee80211_mgmt *mgmt; | |
b9a9ada1 | 2028 | int ies_len; |
57fbcce3 | 2029 | u32 rate_masks[NUM_NL80211_BANDS] = {}; |
c56ef672 | 2030 | struct ieee80211_scan_ies dummy_ie_desc; |
46900298 | 2031 | |
a806c558 PS |
2032 | /* |
2033 | * Do not send DS Channel parameter for directed probe requests | |
2034 | * in order to maximize the chance that we get a response. Some | |
2035 | * badly-behaved APs don't respond when this parameter is included. | |
2036 | */ | |
2103dec1 | 2037 | chandef.width = sdata->vif.bss_conf.chandef.width; |
00387f32 | 2038 | if (flags & IEEE80211_PROBE_FLAG_DIRECTED) |
2103dec1 | 2039 | chandef.chan = NULL; |
a806c558 | 2040 | else |
2103dec1 | 2041 | chandef.chan = chan; |
651b5225 | 2042 | |
a344d677 JB |
2043 | skb = ieee80211_probereq_get(&local->hw, src, ssid, ssid_len, |
2044 | 100 + ie_len); | |
5b2bbf75 | 2045 | if (!skb) |
b9a9ada1 JB |
2046 | return NULL; |
2047 | ||
c56ef672 | 2048 | rate_masks[chan->band] = ratemask; |
2ad2274c | 2049 | ies_len = ieee80211_build_preq_ies(sdata, skb_tail_pointer(skb), |
c56ef672 DS |
2050 | skb_tailroom(skb), &dummy_ie_desc, |
2051 | ie, ie_len, BIT(chan->band), | |
00387f32 | 2052 | rate_masks, &chandef, flags); |
b9a9ada1 | 2053 | skb_put(skb, ies_len); |
7c12ce8b | 2054 | |
46900298 | 2055 | if (dst) { |
7c12ce8b | 2056 | mgmt = (struct ieee80211_mgmt *) skb->data; |
46900298 JB |
2057 | memcpy(mgmt->da, dst, ETH_ALEN); |
2058 | memcpy(mgmt->bssid, dst, ETH_ALEN); | |
46900298 | 2059 | } |
46900298 | 2060 | |
62ae67be | 2061 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; |
5b2bbf75 | 2062 | |
a619a4c0 JO |
2063 | return skb; |
2064 | } | |
2065 | ||
2103dec1 | 2066 | u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata, |
46900298 | 2067 | struct ieee802_11_elems *elems, |
57fbcce3 | 2068 | enum nl80211_band band, u32 *basic_rates) |
46900298 JB |
2069 | { |
2070 | struct ieee80211_supported_band *sband; | |
46900298 | 2071 | size_t num_rates; |
2103dec1 SW |
2072 | u32 supp_rates, rate_flags; |
2073 | int i, j, shift; | |
21a8e9dd | 2074 | |
2103dec1 | 2075 | sband = sdata->local->hw.wiphy->bands[band]; |
21a8e9dd MSS |
2076 | if (WARN_ON(!sband)) |
2077 | return 1; | |
2103dec1 SW |
2078 | |
2079 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
2080 | shift = ieee80211_vif_get_shift(&sdata->vif); | |
46900298 | 2081 | |
46900298 JB |
2082 | num_rates = sband->n_bitrates; |
2083 | supp_rates = 0; | |
2084 | for (i = 0; i < elems->supp_rates_len + | |
2085 | elems->ext_supp_rates_len; i++) { | |
2086 | u8 rate = 0; | |
2087 | int own_rate; | |
9ebb61a2 | 2088 | bool is_basic; |
46900298 JB |
2089 | if (i < elems->supp_rates_len) |
2090 | rate = elems->supp_rates[i]; | |
2091 | else if (elems->ext_supp_rates) | |
2092 | rate = elems->ext_supp_rates | |
2093 | [i - elems->supp_rates_len]; | |
2094 | own_rate = 5 * (rate & 0x7f); | |
9ebb61a2 AN |
2095 | is_basic = !!(rate & 0x80); |
2096 | ||
2097 | if (is_basic && (rate & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY) | |
2098 | continue; | |
2099 | ||
2100 | for (j = 0; j < num_rates; j++) { | |
2103dec1 SW |
2101 | int brate; |
2102 | if ((rate_flags & sband->bitrates[j].flags) | |
2103 | != rate_flags) | |
2104 | continue; | |
2105 | ||
2106 | brate = DIV_ROUND_UP(sband->bitrates[j].bitrate, | |
2107 | 1 << shift); | |
2108 | ||
2109 | if (brate == own_rate) { | |
46900298 | 2110 | supp_rates |= BIT(j); |
9ebb61a2 AN |
2111 | if (basic_rates && is_basic) |
2112 | *basic_rates |= BIT(j); | |
2113 | } | |
2114 | } | |
46900298 JB |
2115 | } |
2116 | return supp_rates; | |
2117 | } | |
f2753ddb | 2118 | |
84f6a01c JB |
2119 | void ieee80211_stop_device(struct ieee80211_local *local) |
2120 | { | |
2121 | ieee80211_led_radio(local, false); | |
67408c8c | 2122 | ieee80211_mod_tpt_led_trig(local, 0, IEEE80211_TPT_LEDTRIG_FL_RADIO); |
84f6a01c JB |
2123 | |
2124 | cancel_work_sync(&local->reconfig_filter); | |
84f6a01c JB |
2125 | |
2126 | flush_workqueue(local->workqueue); | |
678f415f | 2127 | drv_stop(local); |
84f6a01c JB |
2128 | } |
2129 | ||
74430f94 JB |
2130 | static void ieee80211_flush_completed_scan(struct ieee80211_local *local, |
2131 | bool aborted) | |
2132 | { | |
2133 | /* It's possible that we don't handle the scan completion in | |
2134 | * time during suspend, so if it's still marked as completed | |
2135 | * here, queue the work and flush it to clean things up. | |
2136 | * Instead of calling the worker function directly here, we | |
2137 | * really queue it to avoid potential races with other flows | |
2138 | * scheduling the same work. | |
2139 | */ | |
2140 | if (test_bit(SCAN_COMPLETED, &local->scanning)) { | |
2141 | /* If coming from reconfiguration failure, abort the scan so | |
2142 | * we don't attempt to continue a partial HW scan - which is | |
2143 | * possible otherwise if (e.g.) the 2.4 GHz portion was the | |
2144 | * completed scan, and a 5 GHz portion is still pending. | |
2145 | */ | |
2146 | if (aborted) | |
2147 | set_bit(SCAN_ABORTED, &local->scanning); | |
2148 | ieee80211_queue_delayed_work(&local->hw, &local->scan_work, 0); | |
2149 | flush_delayed_work(&local->scan_work); | |
2150 | } | |
2151 | } | |
2152 | ||
f6837ba8 JB |
2153 | static void ieee80211_handle_reconfig_failure(struct ieee80211_local *local) |
2154 | { | |
2155 | struct ieee80211_sub_if_data *sdata; | |
2156 | struct ieee80211_chanctx *ctx; | |
2157 | ||
2158 | /* | |
2159 | * We get here if during resume the device can't be restarted properly. | |
2160 | * We might also get here if this happens during HW reset, which is a | |
2161 | * slightly different situation and we need to drop all connections in | |
2162 | * the latter case. | |
2163 | * | |
2164 | * Ask cfg80211 to turn off all interfaces, this will result in more | |
2165 | * warnings but at least we'll then get into a clean stopped state. | |
2166 | */ | |
2167 | ||
2168 | local->resuming = false; | |
2169 | local->suspended = false; | |
7584f88f | 2170 | local->in_reconfig = false; |
f6837ba8 | 2171 | |
74430f94 JB |
2172 | ieee80211_flush_completed_scan(local, true); |
2173 | ||
f6837ba8 JB |
2174 | /* scheduled scan clearly can't be running any more, but tell |
2175 | * cfg80211 and clear local state | |
2176 | */ | |
2177 | ieee80211_sched_scan_end(local); | |
2178 | ||
2179 | list_for_each_entry(sdata, &local->interfaces, list) | |
2180 | sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER; | |
2181 | ||
2182 | /* Mark channel contexts as not being in the driver any more to avoid | |
2183 | * removing them from the driver during the shutdown process... | |
2184 | */ | |
2185 | mutex_lock(&local->chanctx_mtx); | |
2186 | list_for_each_entry(ctx, &local->chanctx_list, list) | |
2187 | ctx->driver_present = false; | |
2188 | mutex_unlock(&local->chanctx_mtx); | |
2189 | ||
2190 | cfg80211_shutdown_all_interfaces(local->hw.wiphy); | |
2191 | } | |
2192 | ||
153a5fc4 SG |
2193 | static void ieee80211_assign_chanctx(struct ieee80211_local *local, |
2194 | struct ieee80211_sub_if_data *sdata) | |
2195 | { | |
2196 | struct ieee80211_chanctx_conf *conf; | |
2197 | struct ieee80211_chanctx *ctx; | |
2198 | ||
2199 | if (!local->use_chanctx) | |
2200 | return; | |
2201 | ||
2202 | mutex_lock(&local->chanctx_mtx); | |
2203 | conf = rcu_dereference_protected(sdata->vif.chanctx_conf, | |
2204 | lockdep_is_held(&local->chanctx_mtx)); | |
2205 | if (conf) { | |
2206 | ctx = container_of(conf, struct ieee80211_chanctx, conf); | |
2207 | drv_assign_vif_chanctx(local, sdata, ctx); | |
2208 | } | |
2209 | mutex_unlock(&local->chanctx_mtx); | |
2210 | } | |
2211 | ||
1ea2c864 JB |
2212 | static void ieee80211_reconfig_stations(struct ieee80211_sub_if_data *sdata) |
2213 | { | |
2214 | struct ieee80211_local *local = sdata->local; | |
2215 | struct sta_info *sta; | |
2216 | ||
2217 | /* add STAs back */ | |
2218 | mutex_lock(&local->sta_mtx); | |
2219 | list_for_each_entry(sta, &local->sta_list, list) { | |
2220 | enum ieee80211_sta_state state; | |
2221 | ||
2222 | if (!sta->uploaded || sta->sdata != sdata) | |
2223 | continue; | |
2224 | ||
2225 | for (state = IEEE80211_STA_NOTEXIST; | |
2226 | state < sta->sta_state; state++) | |
2227 | WARN_ON(drv_sta_state(local, sta->sdata, sta, state, | |
2228 | state + 1)); | |
2229 | } | |
2230 | mutex_unlock(&local->sta_mtx); | |
2231 | } | |
2232 | ||
167e33f4 AB |
2233 | static int ieee80211_reconfig_nan(struct ieee80211_sub_if_data *sdata) |
2234 | { | |
2235 | struct cfg80211_nan_func *func, **funcs; | |
2236 | int res, id, i = 0; | |
2237 | ||
2238 | res = drv_start_nan(sdata->local, sdata, | |
2239 | &sdata->u.nan.conf); | |
2240 | if (WARN_ON(res)) | |
2241 | return res; | |
2242 | ||
6396bb22 KC |
2243 | funcs = kcalloc(sdata->local->hw.max_nan_de_entries + 1, |
2244 | sizeof(*funcs), | |
2245 | GFP_KERNEL); | |
167e33f4 AB |
2246 | if (!funcs) |
2247 | return -ENOMEM; | |
2248 | ||
2249 | /* Add all the functions: | |
2250 | * This is a little bit ugly. We need to call a potentially sleeping | |
2251 | * callback for each NAN function, so we can't hold the spinlock. | |
2252 | */ | |
2253 | spin_lock_bh(&sdata->u.nan.func_lock); | |
2254 | ||
2255 | idr_for_each_entry(&sdata->u.nan.function_inst_ids, func, id) | |
2256 | funcs[i++] = func; | |
2257 | ||
2258 | spin_unlock_bh(&sdata->u.nan.func_lock); | |
2259 | ||
2260 | for (i = 0; funcs[i]; i++) { | |
2261 | res = drv_add_nan_func(sdata->local, sdata, funcs[i]); | |
2262 | if (WARN_ON(res)) | |
2263 | ieee80211_nan_func_terminated(&sdata->vif, | |
2264 | funcs[i]->instance_id, | |
2265 | NL80211_NAN_FUNC_TERM_REASON_ERROR, | |
2266 | GFP_KERNEL); | |
2267 | } | |
2268 | ||
2269 | kfree(funcs); | |
2270 | ||
2271 | return 0; | |
2272 | } | |
2273 | ||
f2753ddb JB |
2274 | int ieee80211_reconfig(struct ieee80211_local *local) |
2275 | { | |
2276 | struct ieee80211_hw *hw = &local->hw; | |
2277 | struct ieee80211_sub_if_data *sdata; | |
55de908a | 2278 | struct ieee80211_chanctx *ctx; |
f2753ddb | 2279 | struct sta_info *sta; |
2683d65b | 2280 | int res, i; |
d888130a | 2281 | bool reconfig_due_to_wowlan = false; |
d43c6b6e | 2282 | struct ieee80211_sub_if_data *sched_scan_sdata; |
6ea0a69c | 2283 | struct cfg80211_sched_scan_request *sched_scan_req; |
d43c6b6e | 2284 | bool sched_scan_stopped = false; |
b0485e9f | 2285 | bool suspended = local->suspended; |
d888130a | 2286 | |
0f8b8245 EP |
2287 | /* nothing to do if HW shouldn't run */ |
2288 | if (!local->open_count) | |
2289 | goto wake_up; | |
2290 | ||
8f21b0ad | 2291 | #ifdef CONFIG_PM |
b0485e9f | 2292 | if (suspended) |
ceb99fe0 | 2293 | local->resuming = true; |
f2753ddb | 2294 | |
eecc4800 | 2295 | if (local->wowlan) { |
b0485e9f EP |
2296 | /* |
2297 | * In the wowlan case, both mac80211 and the device | |
2298 | * are functional when the resume op is called, so | |
2299 | * clear local->suspended so the device could operate | |
2300 | * normally (e.g. pass rx frames). | |
2301 | */ | |
2302 | local->suspended = false; | |
eecc4800 | 2303 | res = drv_resume(local); |
27b3eb9c | 2304 | local->wowlan = false; |
eecc4800 JB |
2305 | if (res < 0) { |
2306 | local->resuming = false; | |
2307 | return res; | |
2308 | } | |
2309 | if (res == 0) | |
2310 | goto wake_up; | |
2311 | WARN_ON(res > 1); | |
2312 | /* | |
2313 | * res is 1, which means the driver requested | |
2314 | * to go through a regular reset on wakeup. | |
b0485e9f | 2315 | * restore local->suspended in this case. |
eecc4800 | 2316 | */ |
d888130a | 2317 | reconfig_due_to_wowlan = true; |
b0485e9f | 2318 | local->suspended = true; |
eecc4800 JB |
2319 | } |
2320 | #endif | |
f2753ddb | 2321 | |
43d6df00 EP |
2322 | /* |
2323 | * In case of hw_restart during suspend (without wowlan), | |
2324 | * cancel restart work, as we are reconfiguring the device | |
2325 | * anyway. | |
2326 | * Note that restart_work is scheduled on a frozen workqueue, | |
2327 | * so we can't deadlock in this case. | |
2328 | */ | |
2329 | if (suspended && local->in_reconfig && !reconfig_due_to_wowlan) | |
2330 | cancel_work_sync(&local->restart_work); | |
2331 | ||
968a76ce EP |
2332 | local->started = false; |
2333 | ||
94f9b97b JB |
2334 | /* |
2335 | * Upon resume hardware can sometimes be goofy due to | |
2336 | * various platform / driver / bus issues, so restarting | |
2337 | * the device may at times not work immediately. Propagate | |
2338 | * the error. | |
2339 | */ | |
2340 | res = drv_start(local); | |
2341 | if (res) { | |
b0485e9f | 2342 | if (suspended) |
f6837ba8 JB |
2343 | WARN(1, "Hardware became unavailable upon resume. This could be a software issue prior to suspend or a hardware issue.\n"); |
2344 | else | |
2345 | WARN(1, "Hardware became unavailable during restart.\n"); | |
2346 | ieee80211_handle_reconfig_failure(local); | |
94f9b97b | 2347 | return res; |
f2753ddb JB |
2348 | } |
2349 | ||
7f281975 YAP |
2350 | /* setup fragmentation threshold */ |
2351 | drv_set_frag_threshold(local, hw->wiphy->frag_threshold); | |
2352 | ||
2353 | /* setup RTS threshold */ | |
2354 | drv_set_rts_threshold(local, hw->wiphy->rts_threshold); | |
2355 | ||
2356 | /* reset coverage class */ | |
2357 | drv_set_coverage_class(local, hw->wiphy->coverage_class); | |
2358 | ||
94f9b97b JB |
2359 | ieee80211_led_radio(local, true); |
2360 | ieee80211_mod_tpt_led_trig(local, | |
2361 | IEEE80211_TPT_LEDTRIG_FL_RADIO, 0); | |
2362 | ||
f2753ddb | 2363 | /* add interfaces */ |
4b6f1dd6 JB |
2364 | sdata = rtnl_dereference(local->monitor_sdata); |
2365 | if (sdata) { | |
3c3e21e7 JB |
2366 | /* in HW restart it exists already */ |
2367 | WARN_ON(local->resuming); | |
4b6f1dd6 JB |
2368 | res = drv_add_interface(local, sdata); |
2369 | if (WARN_ON(res)) { | |
0c2bef46 | 2370 | RCU_INIT_POINTER(local->monitor_sdata, NULL); |
4b6f1dd6 JB |
2371 | synchronize_net(); |
2372 | kfree(sdata); | |
2373 | } | |
2374 | } | |
2375 | ||
f2753ddb JB |
2376 | list_for_each_entry(sdata, &local->interfaces, list) { |
2377 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && | |
2378 | sdata->vif.type != NL80211_IFTYPE_MONITOR && | |
c8fff3dc | 2379 | ieee80211_sdata_running(sdata)) { |
7b7eab6f | 2380 | res = drv_add_interface(local, sdata); |
c8fff3dc LC |
2381 | if (WARN_ON(res)) |
2382 | break; | |
2383 | } | |
2384 | } | |
2385 | ||
2386 | /* If adding any of the interfaces failed above, roll back and | |
2387 | * report failure. | |
2388 | */ | |
2389 | if (res) { | |
2390 | list_for_each_entry_continue_reverse(sdata, &local->interfaces, | |
2391 | list) | |
2392 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && | |
2393 | sdata->vif.type != NL80211_IFTYPE_MONITOR && | |
2394 | ieee80211_sdata_running(sdata)) | |
2395 | drv_remove_interface(local, sdata); | |
2396 | ieee80211_handle_reconfig_failure(local); | |
2397 | return res; | |
f2753ddb JB |
2398 | } |
2399 | ||
55de908a | 2400 | /* add channel contexts */ |
f0dea9c7 AS |
2401 | if (local->use_chanctx) { |
2402 | mutex_lock(&local->chanctx_mtx); | |
2403 | list_for_each_entry(ctx, &local->chanctx_list, list) | |
5bcae31d MK |
2404 | if (ctx->replace_state != |
2405 | IEEE80211_CHANCTX_REPLACES_OTHER) | |
2406 | WARN_ON(drv_add_chanctx(local, ctx)); | |
f0dea9c7 | 2407 | mutex_unlock(&local->chanctx_mtx); |
55de908a | 2408 | |
7df180f7 ZG |
2409 | sdata = rtnl_dereference(local->monitor_sdata); |
2410 | if (sdata && ieee80211_sdata_running(sdata)) | |
2411 | ieee80211_assign_chanctx(local, sdata); | |
2412 | } | |
fe5f2559 | 2413 | |
f2753ddb JB |
2414 | /* reconfigure hardware */ |
2415 | ieee80211_hw_config(local, ~0); | |
2416 | ||
f2753ddb | 2417 | ieee80211_configure_filter(local); |
f2753ddb JB |
2418 | |
2419 | /* Finally also reconfigure all the BSS information */ | |
2420 | list_for_each_entry(sdata, &local->interfaces, list) { | |
ac8dd506 JB |
2421 | u32 changed; |
2422 | ||
9607e6b6 | 2423 | if (!ieee80211_sdata_running(sdata)) |
f2753ddb | 2424 | continue; |
ac8dd506 | 2425 | |
1ea2c864 JB |
2426 | ieee80211_assign_chanctx(local, sdata); |
2427 | ||
2428 | switch (sdata->vif.type) { | |
2429 | case NL80211_IFTYPE_AP_VLAN: | |
2430 | case NL80211_IFTYPE_MONITOR: | |
2431 | break; | |
4926b51b JB |
2432 | case NL80211_IFTYPE_ADHOC: |
2433 | if (sdata->vif.bss_conf.ibss_joined) | |
2434 | WARN_ON(drv_join_ibss(local, sdata)); | |
fc0561dc | 2435 | fallthrough; |
1ea2c864 JB |
2436 | default: |
2437 | ieee80211_reconfig_stations(sdata); | |
fc0561dc | 2438 | fallthrough; |
1ea2c864 JB |
2439 | case NL80211_IFTYPE_AP: /* AP stations are handled later */ |
2440 | for (i = 0; i < IEEE80211_NUM_ACS; i++) | |
2441 | drv_conf_tx(local, sdata, i, | |
2442 | &sdata->tx_conf[i]); | |
2443 | break; | |
2444 | } | |
2445 | ||
ac8dd506 JB |
2446 | /* common change flags for all interface types */ |
2447 | changed = BSS_CHANGED_ERP_CTS_PROT | | |
2448 | BSS_CHANGED_ERP_PREAMBLE | | |
2449 | BSS_CHANGED_ERP_SLOT | | |
2450 | BSS_CHANGED_HT | | |
2451 | BSS_CHANGED_BASIC_RATES | | |
2452 | BSS_CHANGED_BEACON_INT | | |
2453 | BSS_CHANGED_BSSID | | |
4ced3f74 | 2454 | BSS_CHANGED_CQM | |
55de47f6 | 2455 | BSS_CHANGED_QOS | |
1ea6f9c0 | 2456 | BSS_CHANGED_IDLE | |
dcbe73ca PKC |
2457 | BSS_CHANGED_TXPOWER | |
2458 | BSS_CHANGED_MCAST_RATE; | |
ac8dd506 | 2459 | |
b5a33d52 | 2460 | if (sdata->vif.mu_mimo_owner) |
23a1f8d4 SS |
2461 | changed |= BSS_CHANGED_MU_GROUPS; |
2462 | ||
f2753ddb JB |
2463 | switch (sdata->vif.type) { |
2464 | case NL80211_IFTYPE_STATION: | |
0d392e93 | 2465 | changed |= BSS_CHANGED_ASSOC | |
ab095877 EP |
2466 | BSS_CHANGED_ARP_FILTER | |
2467 | BSS_CHANGED_PS; | |
c65dd147 | 2468 | |
989c6505 AB |
2469 | /* Re-send beacon info report to the driver */ |
2470 | if (sdata->u.mgd.have_beacon) | |
2471 | changed |= BSS_CHANGED_BEACON_INFO; | |
c65dd147 | 2472 | |
e38a017b AS |
2473 | if (sdata->vif.bss_conf.max_idle_period || |
2474 | sdata->vif.bss_conf.protected_keep_alive) | |
2475 | changed |= BSS_CHANGED_KEEP_ALIVE; | |
2476 | ||
8d61ffa5 | 2477 | sdata_lock(sdata); |
ac8dd506 | 2478 | ieee80211_bss_info_change_notify(sdata, changed); |
8d61ffa5 | 2479 | sdata_unlock(sdata); |
ac8dd506 | 2480 | break; |
6e0bd6c3 | 2481 | case NL80211_IFTYPE_OCB: |
239281f8 RL |
2482 | changed |= BSS_CHANGED_OCB; |
2483 | ieee80211_bss_info_change_notify(sdata, changed); | |
6e0bd6c3 | 2484 | break; |
f2753ddb | 2485 | case NL80211_IFTYPE_ADHOC: |
ac8dd506 | 2486 | changed |= BSS_CHANGED_IBSS; |
fc0561dc | 2487 | fallthrough; |
f2753ddb | 2488 | case NL80211_IFTYPE_AP: |
339afbf4 | 2489 | changed |= BSS_CHANGED_SSID | BSS_CHANGED_P2P_PS; |
e7979ac7 | 2490 | |
bc847970 PKC |
2491 | if (sdata->vif.bss_conf.ftm_responder == 1 && |
2492 | wiphy_ext_feature_isset(sdata->local->hw.wiphy, | |
2493 | NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER)) | |
2494 | changed |= BSS_CHANGED_FTM_RESPONDER; | |
2495 | ||
1041638f | 2496 | if (sdata->vif.type == NL80211_IFTYPE_AP) { |
e7979ac7 AN |
2497 | changed |= BSS_CHANGED_AP_PROBE_RESP; |
2498 | ||
1041638f JB |
2499 | if (rcu_access_pointer(sdata->u.ap.beacon)) |
2500 | drv_start_ap(local, sdata); | |
2501 | } | |
fc0561dc | 2502 | fallthrough; |
f2753ddb | 2503 | case NL80211_IFTYPE_MESH_POINT: |
8da34932 JB |
2504 | if (sdata->vif.bss_conf.enable_beacon) { |
2505 | changed |= BSS_CHANGED_BEACON | | |
2506 | BSS_CHANGED_BEACON_ENABLED; | |
2507 | ieee80211_bss_info_change_notify(sdata, changed); | |
2508 | } | |
f2753ddb | 2509 | break; |
167e33f4 AB |
2510 | case NL80211_IFTYPE_NAN: |
2511 | res = ieee80211_reconfig_nan(sdata); | |
2512 | if (res < 0) { | |
2513 | ieee80211_handle_reconfig_failure(local); | |
2514 | return res; | |
2515 | } | |
2516 | break; | |
f2753ddb JB |
2517 | case NL80211_IFTYPE_AP_VLAN: |
2518 | case NL80211_IFTYPE_MONITOR: | |
98104fde | 2519 | case NL80211_IFTYPE_P2P_DEVICE: |
b205786e | 2520 | /* nothing to do */ |
f142c6b9 | 2521 | break; |
f2753ddb | 2522 | case NL80211_IFTYPE_UNSPECIFIED: |
2e161f78 | 2523 | case NUM_NL80211_IFTYPES: |
2ca27bcf JB |
2524 | case NL80211_IFTYPE_P2P_CLIENT: |
2525 | case NL80211_IFTYPE_P2P_GO: | |
70d9c599 | 2526 | case NL80211_IFTYPE_WDS: |
f2753ddb JB |
2527 | WARN_ON(1); |
2528 | break; | |
2529 | } | |
2530 | } | |
2531 | ||
4a733ef1 | 2532 | ieee80211_recalc_ps(local); |
8e1b23b9 | 2533 | |
6e1b1b24 EP |
2534 | /* |
2535 | * The sta might be in psm against the ap (e.g. because | |
2536 | * this was the state before a hw restart), so we | |
2537 | * explicitly send a null packet in order to make sure | |
2538 | * it'll sync against the ap (and get out of psm). | |
2539 | */ | |
2540 | if (!(local->hw.conf.flags & IEEE80211_CONF_PS)) { | |
2541 | list_for_each_entry(sdata, &local->interfaces, list) { | |
2542 | if (sdata->vif.type != NL80211_IFTYPE_STATION) | |
2543 | continue; | |
20f544ee JB |
2544 | if (!sdata->u.mgd.associated) |
2545 | continue; | |
6e1b1b24 | 2546 | |
076cdcb1 | 2547 | ieee80211_send_nullfunc(local, sdata, false); |
6e1b1b24 EP |
2548 | } |
2549 | } | |
2550 | ||
2e8d397e AN |
2551 | /* APs are now beaconing, add back stations */ |
2552 | mutex_lock(&local->sta_mtx); | |
2553 | list_for_each_entry(sta, &local->sta_list, list) { | |
2554 | enum ieee80211_sta_state state; | |
2555 | ||
2556 | if (!sta->uploaded) | |
2557 | continue; | |
2558 | ||
19103a4b | 2559 | if (sta->sdata->vif.type != NL80211_IFTYPE_AP && |
2560 | sta->sdata->vif.type != NL80211_IFTYPE_AP_VLAN) | |
2e8d397e AN |
2561 | continue; |
2562 | ||
2563 | for (state = IEEE80211_STA_NOTEXIST; | |
2564 | state < sta->sta_state; state++) | |
2565 | WARN_ON(drv_sta_state(local, sta->sdata, sta, state, | |
2566 | state + 1)); | |
2567 | } | |
2568 | mutex_unlock(&local->sta_mtx); | |
2569 | ||
7b21aea0 | 2570 | /* add back keys */ |
f9dca80b | 2571 | list_for_each_entry(sdata, &local->interfaces, list) |
624ff4b2 | 2572 | ieee80211_reenable_keys(sdata); |
7b21aea0 | 2573 | |
0d440ea2 EP |
2574 | /* Reconfigure sched scan if it was interrupted by FW restart */ |
2575 | mutex_lock(&local->mtx); | |
2576 | sched_scan_sdata = rcu_dereference_protected(local->sched_scan_sdata, | |
2577 | lockdep_is_held(&local->mtx)); | |
2578 | sched_scan_req = rcu_dereference_protected(local->sched_scan_req, | |
2579 | lockdep_is_held(&local->mtx)); | |
2580 | if (sched_scan_sdata && sched_scan_req) | |
2581 | /* | |
2582 | * Sched scan stopped, but we don't want to report it. Instead, | |
2583 | * we're trying to reschedule. However, if more than one scan | |
2584 | * plan was set, we cannot reschedule since we don't know which | |
2585 | * scan plan was currently running (and some scan plans may have | |
2586 | * already finished). | |
2587 | */ | |
2588 | if (sched_scan_req->n_scan_plans > 1 || | |
2589 | __ieee80211_request_sched_scan_start(sched_scan_sdata, | |
b9f628fc EP |
2590 | sched_scan_req)) { |
2591 | RCU_INIT_POINTER(local->sched_scan_sdata, NULL); | |
2592 | RCU_INIT_POINTER(local->sched_scan_req, NULL); | |
0d440ea2 | 2593 | sched_scan_stopped = true; |
b9f628fc | 2594 | } |
0d440ea2 EP |
2595 | mutex_unlock(&local->mtx); |
2596 | ||
2597 | if (sched_scan_stopped) | |
a05829a7 | 2598 | cfg80211_sched_scan_stopped_locked(local->hw.wiphy, 0); |
0d440ea2 | 2599 | |
c6209488 | 2600 | wake_up: |
04800ada | 2601 | |
3c3e21e7 JB |
2602 | if (local->monitors == local->open_count && local->monitors > 0) |
2603 | ieee80211_add_virtual_monitor(local); | |
2604 | ||
2a419056 JB |
2605 | /* |
2606 | * Clear the WLAN_STA_BLOCK_BA flag so new aggregation | |
2607 | * sessions can be established after a resume. | |
2608 | * | |
2609 | * Also tear down aggregation sessions since reconfiguring | |
2610 | * them in a hardware restart scenario is not easily done | |
2611 | * right now, and the hardware will have lost information | |
2612 | * about the sessions, but we and the AP still think they | |
2613 | * are active. This is really a workaround though. | |
2614 | */ | |
30686bf7 | 2615 | if (ieee80211_hw_check(hw, AMPDU_AGGREGATION)) { |
2a419056 JB |
2616 | mutex_lock(&local->sta_mtx); |
2617 | ||
2618 | list_for_each_entry(sta, &local->sta_list, list) { | |
27392719 EP |
2619 | if (!local->resuming) |
2620 | ieee80211_sta_tear_down_BA_sessions( | |
2621 | sta, AGG_STOP_LOCAL_REQUEST); | |
c2c98fde | 2622 | clear_sta_flag(sta, WLAN_STA_BLOCK_BA); |
74e2bd1f | 2623 | } |
2a419056 JB |
2624 | |
2625 | mutex_unlock(&local->sta_mtx); | |
74e2bd1f | 2626 | } |
74e2bd1f | 2627 | |
2316380f SS |
2628 | if (local->in_reconfig) { |
2629 | local->in_reconfig = false; | |
2630 | barrier(); | |
2631 | ||
2632 | /* Restart deferred ROCs */ | |
2633 | mutex_lock(&local->mtx); | |
2634 | ieee80211_start_next_roc(local); | |
2635 | mutex_unlock(&local->mtx); | |
f8891461 NG |
2636 | |
2637 | /* Requeue all works */ | |
2638 | list_for_each_entry(sdata, &local->interfaces, list) | |
2639 | ieee80211_queue_work(&local->hw, &sdata->work); | |
2316380f SS |
2640 | } |
2641 | ||
445ea4e8 | 2642 | ieee80211_wake_queues_by_reason(hw, IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
2643 | IEEE80211_QUEUE_STOP_REASON_SUSPEND, |
2644 | false); | |
f2753ddb | 2645 | |
5bb644a0 JB |
2646 | /* |
2647 | * If this is for hw restart things are still running. | |
2648 | * We may want to change that later, however. | |
2649 | */ | |
b0485e9f | 2650 | if (local->open_count && (!suspended || reconfig_due_to_wowlan)) |
cf2c92d8 | 2651 | drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_RESTART); |
8f21b0ad | 2652 | |
b0485e9f | 2653 | if (!suspended) |
5bb644a0 JB |
2654 | return 0; |
2655 | ||
2656 | #ifdef CONFIG_PM | |
ceb99fe0 | 2657 | /* first set suspended false, then resuming */ |
5bb644a0 | 2658 | local->suspended = false; |
ceb99fe0 JB |
2659 | mb(); |
2660 | local->resuming = false; | |
5bb644a0 | 2661 | |
74430f94 | 2662 | ieee80211_flush_completed_scan(local, false); |
9120d94e | 2663 | |
0f8b8245 | 2664 | if (local->open_count && !reconfig_due_to_wowlan) |
cf2c92d8 EP |
2665 | drv_reconfig_complete(local, IEEE80211_RECONFIG_TYPE_SUSPEND); |
2666 | ||
b8360ab8 JB |
2667 | list_for_each_entry(sdata, &local->interfaces, list) { |
2668 | if (!ieee80211_sdata_running(sdata)) | |
2669 | continue; | |
2670 | if (sdata->vif.type == NL80211_IFTYPE_STATION) | |
2671 | ieee80211_sta_restart(sdata); | |
2672 | } | |
2673 | ||
26d59535 | 2674 | mod_timer(&local->sta_cleanup, jiffies + 1); |
5bb644a0 JB |
2675 | #else |
2676 | WARN_ON(1); | |
2677 | #endif | |
d43c6b6e | 2678 | |
f2753ddb JB |
2679 | return 0; |
2680 | } | |
42935eca | 2681 | |
95acac61 JB |
2682 | void ieee80211_resume_disconnect(struct ieee80211_vif *vif) |
2683 | { | |
2684 | struct ieee80211_sub_if_data *sdata; | |
2685 | struct ieee80211_local *local; | |
2686 | struct ieee80211_key *key; | |
2687 | ||
2688 | if (WARN_ON(!vif)) | |
2689 | return; | |
2690 | ||
2691 | sdata = vif_to_sdata(vif); | |
2692 | local = sdata->local; | |
2693 | ||
2694 | if (WARN_ON(!local->resuming)) | |
2695 | return; | |
2696 | ||
2697 | if (WARN_ON(vif->type != NL80211_IFTYPE_STATION)) | |
2698 | return; | |
2699 | ||
2700 | sdata->flags |= IEEE80211_SDATA_DISCONNECT_RESUME; | |
2701 | ||
2702 | mutex_lock(&local->key_mtx); | |
2703 | list_for_each_entry(key, &sdata->key_list, list) | |
2704 | key->flags |= KEY_FLAG_TAINTED; | |
2705 | mutex_unlock(&local->key_mtx); | |
2706 | } | |
2707 | EXPORT_SYMBOL_GPL(ieee80211_resume_disconnect); | |
2708 | ||
04ecd257 | 2709 | void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata) |
0f78231b | 2710 | { |
04ecd257 JB |
2711 | struct ieee80211_local *local = sdata->local; |
2712 | struct ieee80211_chanctx_conf *chanctx_conf; | |
2713 | struct ieee80211_chanctx *chanctx; | |
025e6be2 | 2714 | |
04ecd257 | 2715 | mutex_lock(&local->chanctx_mtx); |
0f78231b | 2716 | |
04ecd257 JB |
2717 | chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, |
2718 | lockdep_is_held(&local->chanctx_mtx)); | |
0f78231b | 2719 | |
c189a685 AO |
2720 | /* |
2721 | * This function can be called from a work, thus it may be possible | |
2722 | * that the chanctx_conf is removed (due to a disconnection, for | |
2723 | * example). | |
2724 | * So nothing should be done in such case. | |
2725 | */ | |
2726 | if (!chanctx_conf) | |
5d8e4237 | 2727 | goto unlock; |
0f78231b | 2728 | |
04ecd257 JB |
2729 | chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); |
2730 | ieee80211_recalc_smps_chanctx(local, chanctx); | |
5d8e4237 | 2731 | unlock: |
04ecd257 | 2732 | mutex_unlock(&local->chanctx_mtx); |
0f78231b | 2733 | } |
8e664fb3 | 2734 | |
21f659bf EP |
2735 | void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata) |
2736 | { | |
2737 | struct ieee80211_local *local = sdata->local; | |
2738 | struct ieee80211_chanctx_conf *chanctx_conf; | |
2739 | struct ieee80211_chanctx *chanctx; | |
2740 | ||
2741 | mutex_lock(&local->chanctx_mtx); | |
2742 | ||
2743 | chanctx_conf = rcu_dereference_protected(sdata->vif.chanctx_conf, | |
2744 | lockdep_is_held(&local->chanctx_mtx)); | |
2745 | ||
2746 | if (WARN_ON_ONCE(!chanctx_conf)) | |
2747 | goto unlock; | |
2748 | ||
2749 | chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); | |
2750 | ieee80211_recalc_chanctx_min_def(local, chanctx); | |
2751 | unlock: | |
2752 | mutex_unlock(&local->chanctx_mtx); | |
2753 | } | |
2754 | ||
8e664fb3 JB |
2755 | size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset) |
2756 | { | |
2757 | size_t pos = offset; | |
2758 | ||
2759 | while (pos < ielen && ies[pos] != WLAN_EID_VENDOR_SPECIFIC) | |
2760 | pos += 2 + ies[pos + 1]; | |
2761 | ||
2762 | return pos; | |
2763 | } | |
615f7b9b MV |
2764 | |
2765 | static void _ieee80211_enable_rssi_reports(struct ieee80211_sub_if_data *sdata, | |
2766 | int rssi_min_thold, | |
2767 | int rssi_max_thold) | |
2768 | { | |
2769 | trace_api_enable_rssi_reports(sdata, rssi_min_thold, rssi_max_thold); | |
2770 | ||
2771 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
2772 | return; | |
2773 | ||
2774 | /* | |
2775 | * Scale up threshold values before storing it, as the RSSI averaging | |
2776 | * algorithm uses a scaled up value as well. Change this scaling | |
2777 | * factor if the RSSI averaging algorithm changes. | |
2778 | */ | |
2779 | sdata->u.mgd.rssi_min_thold = rssi_min_thold*16; | |
2780 | sdata->u.mgd.rssi_max_thold = rssi_max_thold*16; | |
2781 | } | |
2782 | ||
2783 | void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, | |
2784 | int rssi_min_thold, | |
2785 | int rssi_max_thold) | |
2786 | { | |
2787 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
2788 | ||
2789 | WARN_ON(rssi_min_thold == rssi_max_thold || | |
2790 | rssi_min_thold > rssi_max_thold); | |
2791 | ||
2792 | _ieee80211_enable_rssi_reports(sdata, rssi_min_thold, | |
2793 | rssi_max_thold); | |
2794 | } | |
2795 | EXPORT_SYMBOL(ieee80211_enable_rssi_reports); | |
2796 | ||
2797 | void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) | |
2798 | { | |
2799 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
2800 | ||
2801 | _ieee80211_enable_rssi_reports(sdata, 0, 0); | |
2802 | } | |
2803 | EXPORT_SYMBOL(ieee80211_disable_rssi_reports); | |
768db343 | 2804 | |
ef96a842 | 2805 | u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, |
42e7aa77 AS |
2806 | u16 cap) |
2807 | { | |
2808 | __le16 tmp; | |
2809 | ||
2810 | *pos++ = WLAN_EID_HT_CAPABILITY; | |
2811 | *pos++ = sizeof(struct ieee80211_ht_cap); | |
2812 | memset(pos, 0, sizeof(struct ieee80211_ht_cap)); | |
2813 | ||
2814 | /* capability flags */ | |
2815 | tmp = cpu_to_le16(cap); | |
2816 | memcpy(pos, &tmp, sizeof(u16)); | |
2817 | pos += sizeof(u16); | |
2818 | ||
2819 | /* AMPDU parameters */ | |
ef96a842 BG |
2820 | *pos++ = ht_cap->ampdu_factor | |
2821 | (ht_cap->ampdu_density << | |
42e7aa77 AS |
2822 | IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT); |
2823 | ||
2824 | /* MCS set */ | |
ef96a842 BG |
2825 | memcpy(pos, &ht_cap->mcs, sizeof(ht_cap->mcs)); |
2826 | pos += sizeof(ht_cap->mcs); | |
42e7aa77 AS |
2827 | |
2828 | /* extended capabilities */ | |
2829 | pos += sizeof(__le16); | |
2830 | ||
2831 | /* BF capabilities */ | |
2832 | pos += sizeof(__le32); | |
2833 | ||
2834 | /* antenna selection */ | |
2835 | pos += sizeof(u8); | |
2836 | ||
2837 | return pos; | |
2838 | } | |
2839 | ||
ba0afa2f | 2840 | u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, |
cc3983d8 | 2841 | u32 cap) |
ba0afa2f MP |
2842 | { |
2843 | __le32 tmp; | |
2844 | ||
2845 | *pos++ = WLAN_EID_VHT_CAPABILITY; | |
d4950281 MP |
2846 | *pos++ = sizeof(struct ieee80211_vht_cap); |
2847 | memset(pos, 0, sizeof(struct ieee80211_vht_cap)); | |
ba0afa2f MP |
2848 | |
2849 | /* capability flags */ | |
2850 | tmp = cpu_to_le32(cap); | |
2851 | memcpy(pos, &tmp, sizeof(u32)); | |
2852 | pos += sizeof(u32); | |
2853 | ||
2854 | /* VHT MCS set */ | |
2855 | memcpy(pos, &vht_cap->vht_mcs, sizeof(vht_cap->vht_mcs)); | |
2856 | pos += sizeof(vht_cap->vht_mcs); | |
2857 | ||
2858 | return pos; | |
2859 | } | |
2860 | ||
60ad72da SE |
2861 | u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype) |
2862 | { | |
2863 | const struct ieee80211_sta_he_cap *he_cap; | |
2864 | struct ieee80211_supported_band *sband; | |
2865 | u8 n; | |
2866 | ||
2867 | sband = ieee80211_get_sband(sdata); | |
2868 | if (!sband) | |
2869 | return 0; | |
2870 | ||
2871 | he_cap = ieee80211_get_he_iftype_cap(sband, iftype); | |
2872 | if (!he_cap) | |
2873 | return 0; | |
2874 | ||
2875 | n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); | |
2876 | return 2 + 1 + | |
2877 | sizeof(he_cap->he_cap_elem) + n + | |
2878 | ieee80211_he_ppe_size(he_cap->ppe_thres[0], | |
2879 | he_cap->he_cap_elem.phy_cap_info); | |
2880 | } | |
2881 | ||
41cbb0f5 LC |
2882 | u8 *ieee80211_ie_build_he_cap(u8 *pos, |
2883 | const struct ieee80211_sta_he_cap *he_cap, | |
2884 | u8 *end) | |
2885 | { | |
2886 | u8 n; | |
2887 | u8 ie_len; | |
2888 | u8 *orig_pos = pos; | |
2889 | ||
2890 | /* Make sure we have place for the IE */ | |
2891 | /* | |
2892 | * TODO: the 1 added is because this temporarily is under the EXTENSION | |
2893 | * IE. Get rid of it when it moves. | |
2894 | */ | |
2895 | if (!he_cap) | |
2896 | return orig_pos; | |
2897 | ||
2898 | n = ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem); | |
2899 | ie_len = 2 + 1 + | |
2900 | sizeof(he_cap->he_cap_elem) + n + | |
2901 | ieee80211_he_ppe_size(he_cap->ppe_thres[0], | |
2902 | he_cap->he_cap_elem.phy_cap_info); | |
2903 | ||
2904 | if ((end - pos) < ie_len) | |
2905 | return orig_pos; | |
2906 | ||
2907 | *pos++ = WLAN_EID_EXTENSION; | |
2908 | pos++; /* We'll set the size later below */ | |
2909 | *pos++ = WLAN_EID_EXT_HE_CAPABILITY; | |
2910 | ||
2911 | /* Fixed data */ | |
2912 | memcpy(pos, &he_cap->he_cap_elem, sizeof(he_cap->he_cap_elem)); | |
2913 | pos += sizeof(he_cap->he_cap_elem); | |
2914 | ||
2915 | memcpy(pos, &he_cap->he_mcs_nss_supp, n); | |
2916 | pos += n; | |
2917 | ||
2918 | /* Check if PPE Threshold should be present */ | |
2919 | if ((he_cap->he_cap_elem.phy_cap_info[6] & | |
2920 | IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) == 0) | |
2921 | goto end; | |
2922 | ||
2923 | /* | |
2924 | * Calculate how many PPET16/PPET8 pairs are to come. Algorithm: | |
2925 | * (NSS_M1 + 1) x (num of 1 bits in RU_INDEX_BITMASK) | |
2926 | */ | |
2927 | n = hweight8(he_cap->ppe_thres[0] & | |
2928 | IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK); | |
2929 | n *= (1 + ((he_cap->ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) >> | |
2930 | IEEE80211_PPE_THRES_NSS_POS)); | |
2931 | ||
2932 | /* | |
2933 | * Each pair is 6 bits, and we need to add the 7 "header" bits to the | |
2934 | * total size. | |
2935 | */ | |
2936 | n = (n * IEEE80211_PPE_THRES_INFO_PPET_SIZE * 2) + 7; | |
2937 | n = DIV_ROUND_UP(n, 8); | |
2938 | ||
2939 | /* Copy PPE Thresholds */ | |
2940 | memcpy(pos, &he_cap->ppe_thres, n); | |
2941 | pos += n; | |
2942 | ||
2943 | end: | |
2944 | orig_pos[1] = (pos - orig_pos) - 2; | |
2945 | return pos; | |
2946 | } | |
2947 | ||
24a2042c RM |
2948 | void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata, |
2949 | struct sk_buff *skb) | |
2950 | { | |
2951 | struct ieee80211_supported_band *sband; | |
2952 | const struct ieee80211_sband_iftype_data *iftd; | |
2953 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); | |
2954 | u8 *pos; | |
2955 | u16 cap; | |
2956 | ||
2957 | sband = ieee80211_get_sband(sdata); | |
2958 | if (!sband) | |
2959 | return; | |
2960 | ||
2961 | iftd = ieee80211_get_sband_iftype_data(sband, iftype); | |
2962 | if (WARN_ON(!iftd)) | |
2963 | return; | |
2964 | ||
65ad3ef9 RM |
2965 | /* Check for device HE 6 GHz capability before adding element */ |
2966 | if (!iftd->he_6ghz_capa.capa) | |
2967 | return; | |
2968 | ||
24a2042c RM |
2969 | cap = le16_to_cpu(iftd->he_6ghz_capa.capa); |
2970 | cap &= ~IEEE80211_HE_6GHZ_CAP_SM_PS; | |
2971 | ||
2972 | switch (sdata->smps_mode) { | |
2973 | case IEEE80211_SMPS_AUTOMATIC: | |
2974 | case IEEE80211_SMPS_NUM_MODES: | |
2975 | WARN_ON(1); | |
fc0561dc | 2976 | fallthrough; |
24a2042c RM |
2977 | case IEEE80211_SMPS_OFF: |
2978 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DISABLED, | |
2979 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
2980 | break; | |
2981 | case IEEE80211_SMPS_STATIC: | |
2982 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_STATIC, | |
2983 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
2984 | break; | |
2985 | case IEEE80211_SMPS_DYNAMIC: | |
2986 | cap |= u16_encode_bits(WLAN_HT_CAP_SM_PS_DYNAMIC, | |
2987 | IEEE80211_HE_6GHZ_CAP_SM_PS); | |
2988 | break; | |
2989 | } | |
2990 | ||
2991 | pos = skb_put(skb, 2 + 1 + sizeof(cap)); | |
2ad2274c IP |
2992 | ieee80211_write_he_6ghz_cap(pos, cpu_to_le16(cap), |
2993 | pos + 2 + 1 + sizeof(cap)); | |
24a2042c RM |
2994 | } |
2995 | ||
074d46d1 | 2996 | u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, |
4bf88530 | 2997 | const struct cfg80211_chan_def *chandef, |
57f255f5 | 2998 | u16 prot_mode, bool rifs_mode) |
42e7aa77 | 2999 | { |
074d46d1 | 3000 | struct ieee80211_ht_operation *ht_oper; |
42e7aa77 | 3001 | /* Build HT Information */ |
074d46d1 JB |
3002 | *pos++ = WLAN_EID_HT_OPERATION; |
3003 | *pos++ = sizeof(struct ieee80211_ht_operation); | |
3004 | ht_oper = (struct ieee80211_ht_operation *)pos; | |
4bf88530 JB |
3005 | ht_oper->primary_chan = ieee80211_frequency_to_channel( |
3006 | chandef->chan->center_freq); | |
3007 | switch (chandef->width) { | |
3008 | case NL80211_CHAN_WIDTH_160: | |
3009 | case NL80211_CHAN_WIDTH_80P80: | |
3010 | case NL80211_CHAN_WIDTH_80: | |
3011 | case NL80211_CHAN_WIDTH_40: | |
3012 | if (chandef->center_freq1 > chandef->chan->center_freq) | |
3013 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
3014 | else | |
3015 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
42e7aa77 | 3016 | break; |
42e7aa77 | 3017 | default: |
074d46d1 | 3018 | ht_oper->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE; |
42e7aa77 AS |
3019 | break; |
3020 | } | |
aee286c2 | 3021 | if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && |
4bf88530 JB |
3022 | chandef->width != NL80211_CHAN_WIDTH_20_NOHT && |
3023 | chandef->width != NL80211_CHAN_WIDTH_20) | |
074d46d1 | 3024 | ht_oper->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; |
ff3cc5f4 | 3025 | |
57f255f5 AN |
3026 | if (rifs_mode) |
3027 | ht_oper->ht_param |= IEEE80211_HT_PARAM_RIFS_MODE; | |
3028 | ||
431e3154 | 3029 | ht_oper->operation_mode = cpu_to_le16(prot_mode); |
074d46d1 | 3030 | ht_oper->stbc_param = 0x0000; |
42e7aa77 AS |
3031 | |
3032 | /* It seems that Basic MCS set and Supported MCS set | |
3033 | are identical for the first 10 bytes */ | |
074d46d1 JB |
3034 | memset(&ht_oper->basic_set, 0, 16); |
3035 | memcpy(&ht_oper->basic_set, &ht_cap->mcs, 10); | |
42e7aa77 | 3036 | |
074d46d1 | 3037 | return pos + sizeof(struct ieee80211_ht_operation); |
42e7aa77 AS |
3038 | } |
3039 | ||
75d627d5 SW |
3040 | void ieee80211_ie_build_wide_bw_cs(u8 *pos, |
3041 | const struct cfg80211_chan_def *chandef) | |
3042 | { | |
3043 | *pos++ = WLAN_EID_WIDE_BW_CHANNEL_SWITCH; /* EID */ | |
3044 | *pos++ = 3; /* IE length */ | |
3045 | /* New channel width */ | |
3046 | switch (chandef->width) { | |
3047 | case NL80211_CHAN_WIDTH_80: | |
3048 | *pos++ = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
3049 | break; | |
3050 | case NL80211_CHAN_WIDTH_160: | |
3051 | *pos++ = IEEE80211_VHT_CHANWIDTH_160MHZ; | |
3052 | break; | |
3053 | case NL80211_CHAN_WIDTH_80P80: | |
3054 | *pos++ = IEEE80211_VHT_CHANWIDTH_80P80MHZ; | |
3055 | break; | |
3056 | default: | |
3057 | *pos++ = IEEE80211_VHT_CHANWIDTH_USE_HT; | |
3058 | } | |
3059 | ||
3060 | /* new center frequency segment 0 */ | |
3061 | *pos++ = ieee80211_frequency_to_channel(chandef->center_freq1); | |
3062 | /* new center frequency segment 1 */ | |
3063 | if (chandef->center_freq2) | |
3064 | *pos++ = ieee80211_frequency_to_channel(chandef->center_freq2); | |
3065 | else | |
3066 | *pos++ = 0; | |
3067 | } | |
3068 | ||
fb28ec0c AN |
3069 | u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap, |
3070 | const struct cfg80211_chan_def *chandef) | |
3071 | { | |
3072 | struct ieee80211_vht_operation *vht_oper; | |
3073 | ||
3074 | *pos++ = WLAN_EID_VHT_OPERATION; | |
3075 | *pos++ = sizeof(struct ieee80211_vht_operation); | |
3076 | vht_oper = (struct ieee80211_vht_operation *)pos; | |
2fb51c35 | 3077 | vht_oper->center_freq_seg0_idx = ieee80211_frequency_to_channel( |
fb28ec0c AN |
3078 | chandef->center_freq1); |
3079 | if (chandef->center_freq2) | |
2fb51c35 | 3080 | vht_oper->center_freq_seg1_idx = |
fb28ec0c | 3081 | ieee80211_frequency_to_channel(chandef->center_freq2); |
f020ae40 | 3082 | else |
2fb51c35 | 3083 | vht_oper->center_freq_seg1_idx = 0x00; |
fb28ec0c AN |
3084 | |
3085 | switch (chandef->width) { | |
3086 | case NL80211_CHAN_WIDTH_160: | |
23665aaf JM |
3087 | /* |
3088 | * Convert 160 MHz channel width to new style as interop | |
3089 | * workaround. | |
3090 | */ | |
3091 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
2fb51c35 | 3092 | vht_oper->center_freq_seg1_idx = vht_oper->center_freq_seg0_idx; |
23665aaf | 3093 | if (chandef->chan->center_freq < chandef->center_freq1) |
2fb51c35 | 3094 | vht_oper->center_freq_seg0_idx -= 8; |
23665aaf | 3095 | else |
2fb51c35 | 3096 | vht_oper->center_freq_seg0_idx += 8; |
fb28ec0c AN |
3097 | break; |
3098 | case NL80211_CHAN_WIDTH_80P80: | |
23665aaf JM |
3099 | /* |
3100 | * Convert 80+80 MHz channel width to new style as interop | |
3101 | * workaround. | |
3102 | */ | |
3103 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
fb28ec0c AN |
3104 | break; |
3105 | case NL80211_CHAN_WIDTH_80: | |
3106 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ; | |
3107 | break; | |
3108 | default: | |
3109 | vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT; | |
3110 | break; | |
3111 | } | |
3112 | ||
3113 | /* don't require special VHT peer rates */ | |
3114 | vht_oper->basic_mcs_set = cpu_to_le16(0xffff); | |
3115 | ||
3116 | return pos + sizeof(struct ieee80211_vht_operation); | |
3117 | } | |
3118 | ||
d1b7524b | 3119 | u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef) |
60ad72da SE |
3120 | { |
3121 | struct ieee80211_he_operation *he_oper; | |
d1b7524b | 3122 | struct ieee80211_he_6ghz_oper *he_6ghz_op; |
60ad72da | 3123 | u32 he_oper_params; |
d1b7524b RM |
3124 | u8 ie_len = 1 + sizeof(struct ieee80211_he_operation); |
3125 | ||
3126 | if (chandef->chan->band == NL80211_BAND_6GHZ) | |
3127 | ie_len += sizeof(struct ieee80211_he_6ghz_oper); | |
60ad72da SE |
3128 | |
3129 | *pos++ = WLAN_EID_EXTENSION; | |
d1b7524b | 3130 | *pos++ = ie_len; |
60ad72da SE |
3131 | *pos++ = WLAN_EID_EXT_HE_OPERATION; |
3132 | ||
3133 | he_oper_params = 0; | |
3134 | he_oper_params |= u32_encode_bits(1023, /* disabled */ | |
3135 | IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); | |
3136 | he_oper_params |= u32_encode_bits(1, | |
3137 | IEEE80211_HE_OPERATION_ER_SU_DISABLE); | |
3138 | he_oper_params |= u32_encode_bits(1, | |
3139 | IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); | |
d1b7524b RM |
3140 | if (chandef->chan->band == NL80211_BAND_6GHZ) |
3141 | he_oper_params |= u32_encode_bits(1, | |
3142 | IEEE80211_HE_OPERATION_6GHZ_OP_INFO); | |
60ad72da SE |
3143 | |
3144 | he_oper = (struct ieee80211_he_operation *)pos; | |
3145 | he_oper->he_oper_params = cpu_to_le32(he_oper_params); | |
3146 | ||
3147 | /* don't require special HE peer rates */ | |
3148 | he_oper->he_mcs_nss_set = cpu_to_le16(0xffff); | |
d1b7524b | 3149 | pos += sizeof(struct ieee80211_he_operation); |
60ad72da | 3150 | |
d1b7524b RM |
3151 | if (chandef->chan->band != NL80211_BAND_6GHZ) |
3152 | goto out; | |
60ad72da | 3153 | |
d1b7524b RM |
3154 | /* TODO add VHT operational */ |
3155 | he_6ghz_op = (struct ieee80211_he_6ghz_oper *)pos; | |
3156 | he_6ghz_op->minrate = 6; /* 6 Mbps */ | |
3157 | he_6ghz_op->primary = | |
3158 | ieee80211_frequency_to_channel(chandef->chan->center_freq); | |
3159 | he_6ghz_op->ccfs0 = | |
3160 | ieee80211_frequency_to_channel(chandef->center_freq1); | |
3161 | if (chandef->center_freq2) | |
3162 | he_6ghz_op->ccfs1 = | |
3163 | ieee80211_frequency_to_channel(chandef->center_freq2); | |
3164 | else | |
3165 | he_6ghz_op->ccfs1 = 0; | |
3166 | ||
3167 | switch (chandef->width) { | |
3168 | case NL80211_CHAN_WIDTH_160: | |
3169 | /* Convert 160 MHz channel width to new style as interop | |
3170 | * workaround. | |
3171 | */ | |
3172 | he_6ghz_op->control = | |
3173 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; | |
3174 | he_6ghz_op->ccfs1 = he_6ghz_op->ccfs0; | |
3175 | if (chandef->chan->center_freq < chandef->center_freq1) | |
3176 | he_6ghz_op->ccfs0 -= 8; | |
3177 | else | |
3178 | he_6ghz_op->ccfs0 += 8; | |
3179 | fallthrough; | |
3180 | case NL80211_CHAN_WIDTH_80P80: | |
3181 | he_6ghz_op->control = | |
3182 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ; | |
3183 | break; | |
3184 | case NL80211_CHAN_WIDTH_80: | |
3185 | he_6ghz_op->control = | |
3186 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ; | |
3187 | break; | |
3188 | case NL80211_CHAN_WIDTH_40: | |
3189 | he_6ghz_op->control = | |
3190 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ; | |
3191 | break; | |
3192 | default: | |
3193 | he_6ghz_op->control = | |
3194 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ; | |
3195 | break; | |
3196 | } | |
3197 | ||
3198 | pos += sizeof(struct ieee80211_he_6ghz_oper); | |
3199 | ||
3200 | out: | |
3201 | return pos; | |
60ad72da SE |
3202 | } |
3203 | ||
8ac3c704 JB |
3204 | bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper, |
3205 | struct cfg80211_chan_def *chandef) | |
42e7aa77 AS |
3206 | { |
3207 | enum nl80211_channel_type channel_type; | |
3208 | ||
8ac3c704 JB |
3209 | if (!ht_oper) |
3210 | return false; | |
42e7aa77 | 3211 | |
074d46d1 | 3212 | switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { |
42e7aa77 AS |
3213 | case IEEE80211_HT_PARAM_CHA_SEC_NONE: |
3214 | channel_type = NL80211_CHAN_HT20; | |
3215 | break; | |
3216 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: | |
3217 | channel_type = NL80211_CHAN_HT40PLUS; | |
3218 | break; | |
3219 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: | |
3220 | channel_type = NL80211_CHAN_HT40MINUS; | |
3221 | break; | |
3222 | default: | |
3223 | channel_type = NL80211_CHAN_NO_HT; | |
8ac3c704 | 3224 | return false; |
42e7aa77 AS |
3225 | } |
3226 | ||
8ac3c704 JB |
3227 | cfg80211_chandef_create(chandef, chandef->chan, channel_type); |
3228 | return true; | |
42e7aa77 AS |
3229 | } |
3230 | ||
2a333a0d | 3231 | bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info, |
7eb26df2 JB |
3232 | const struct ieee80211_vht_operation *oper, |
3233 | const struct ieee80211_ht_operation *htop, | |
8ac3c704 | 3234 | struct cfg80211_chan_def *chandef) |
abcff6ef | 3235 | { |
8ac3c704 | 3236 | struct cfg80211_chan_def new = *chandef; |
7eb26df2 JB |
3237 | int cf0, cf1; |
3238 | int ccfs0, ccfs1, ccfs2; | |
3239 | int ccf0, ccf1; | |
33181ea7 SB |
3240 | u32 vht_cap; |
3241 | bool support_80_80 = false; | |
3242 | bool support_160 = false; | |
2a333a0d JB |
3243 | u8 ext_nss_bw_supp = u32_get_bits(vht_cap_info, |
3244 | IEEE80211_VHT_CAP_EXT_NSS_BW_MASK); | |
3245 | u8 supp_chwidth = u32_get_bits(vht_cap_info, | |
3246 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK); | |
8ac3c704 | 3247 | |
7eb26df2 | 3248 | if (!oper || !htop) |
8ac3c704 | 3249 | return false; |
abcff6ef | 3250 | |
33181ea7 SB |
3251 | vht_cap = hw->wiphy->bands[chandef->chan->band]->vht_cap.cap; |
3252 | support_160 = (vht_cap & (IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK | | |
3253 | IEEE80211_VHT_CAP_EXT_NSS_BW_MASK)); | |
3254 | support_80_80 = ((vht_cap & | |
3255 | IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) || | |
3256 | (vht_cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ && | |
3257 | vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) || | |
3258 | ((vht_cap & IEEE80211_VHT_CAP_EXT_NSS_BW_MASK) >> | |
3259 | IEEE80211_VHT_CAP_EXT_NSS_BW_SHIFT > 1)); | |
7eb26df2 JB |
3260 | ccfs0 = oper->center_freq_seg0_idx; |
3261 | ccfs1 = oper->center_freq_seg1_idx; | |
3262 | ccfs2 = (le16_to_cpu(htop->operation_mode) & | |
3263 | IEEE80211_HT_OP_MODE_CCFS2_MASK) | |
3264 | >> IEEE80211_HT_OP_MODE_CCFS2_SHIFT; | |
3265 | ||
7eb26df2 | 3266 | ccf0 = ccfs0; |
2a333a0d JB |
3267 | |
3268 | /* if not supported, parse as though we didn't understand it */ | |
3269 | if (!ieee80211_hw_check(hw, SUPPORTS_VHT_EXT_NSS_BW)) | |
3270 | ext_nss_bw_supp = 0; | |
3271 | ||
3272 | /* | |
3273 | * Cf. IEEE 802.11 Table 9-250 | |
3274 | * | |
3275 | * We really just consider that because it's inefficient to connect | |
3276 | * at a higher bandwidth than we'll actually be able to use. | |
3277 | */ | |
3278 | switch ((supp_chwidth << 4) | ext_nss_bw_supp) { | |
3279 | default: | |
3280 | case 0x00: | |
3281 | ccf1 = 0; | |
3282 | support_160 = false; | |
3283 | support_80_80 = false; | |
3284 | break; | |
3285 | case 0x01: | |
3286 | support_80_80 = false; | |
fc0561dc | 3287 | fallthrough; |
2a333a0d JB |
3288 | case 0x02: |
3289 | case 0x03: | |
7eb26df2 | 3290 | ccf1 = ccfs2; |
2a333a0d JB |
3291 | break; |
3292 | case 0x10: | |
3293 | ccf1 = ccfs1; | |
3294 | break; | |
3295 | case 0x11: | |
3296 | case 0x12: | |
3297 | if (!ccfs1) | |
3298 | ccf1 = ccfs2; | |
3299 | else | |
3300 | ccf1 = ccfs1; | |
3301 | break; | |
3302 | case 0x13: | |
3303 | case 0x20: | |
3304 | case 0x23: | |
3305 | ccf1 = ccfs1; | |
3306 | break; | |
3307 | } | |
7eb26df2 JB |
3308 | |
3309 | cf0 = ieee80211_channel_to_frequency(ccf0, chandef->chan->band); | |
3310 | cf1 = ieee80211_channel_to_frequency(ccf1, chandef->chan->band); | |
abcff6ef JD |
3311 | |
3312 | switch (oper->chan_width) { | |
3313 | case IEEE80211_VHT_CHANWIDTH_USE_HT: | |
7eb26df2 | 3314 | /* just use HT information directly */ |
abcff6ef JD |
3315 | break; |
3316 | case IEEE80211_VHT_CHANWIDTH_80MHZ: | |
8ac3c704 | 3317 | new.width = NL80211_CHAN_WIDTH_80; |
7eb26df2 | 3318 | new.center_freq1 = cf0; |
23665aaf | 3319 | /* If needed, adjust based on the newer interop workaround. */ |
7eb26df2 | 3320 | if (ccf1) { |
23665aaf JM |
3321 | unsigned int diff; |
3322 | ||
7eb26df2 | 3323 | diff = abs(ccf1 - ccf0); |
33181ea7 | 3324 | if ((diff == 8) && support_160) { |
23665aaf | 3325 | new.width = NL80211_CHAN_WIDTH_160; |
7eb26df2 | 3326 | new.center_freq1 = cf1; |
33181ea7 | 3327 | } else if ((diff > 8) && support_80_80) { |
23665aaf | 3328 | new.width = NL80211_CHAN_WIDTH_80P80; |
7eb26df2 | 3329 | new.center_freq2 = cf1; |
23665aaf JM |
3330 | } |
3331 | } | |
abcff6ef JD |
3332 | break; |
3333 | case IEEE80211_VHT_CHANWIDTH_160MHZ: | |
7eb26df2 | 3334 | /* deprecated encoding */ |
8ac3c704 | 3335 | new.width = NL80211_CHAN_WIDTH_160; |
7eb26df2 | 3336 | new.center_freq1 = cf0; |
abcff6ef JD |
3337 | break; |
3338 | case IEEE80211_VHT_CHANWIDTH_80P80MHZ: | |
7eb26df2 | 3339 | /* deprecated encoding */ |
8ac3c704 | 3340 | new.width = NL80211_CHAN_WIDTH_80P80; |
7eb26df2 JB |
3341 | new.center_freq1 = cf0; |
3342 | new.center_freq2 = cf1; | |
abcff6ef JD |
3343 | break; |
3344 | default: | |
8ac3c704 | 3345 | return false; |
abcff6ef JD |
3346 | } |
3347 | ||
8ac3c704 JB |
3348 | if (!cfg80211_chandef_valid(&new)) |
3349 | return false; | |
3350 | ||
3351 | *chandef = new; | |
3352 | return true; | |
abcff6ef JD |
3353 | } |
3354 | ||
57fa5e85 JB |
3355 | bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata, |
3356 | const struct ieee80211_he_operation *he_oper, | |
3357 | struct cfg80211_chan_def *chandef) | |
3358 | { | |
3359 | struct ieee80211_local *local = sdata->local; | |
3360 | struct ieee80211_supported_band *sband; | |
3361 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); | |
3362 | const struct ieee80211_sta_he_cap *he_cap; | |
3363 | struct cfg80211_chan_def he_chandef = *chandef; | |
3364 | const struct ieee80211_he_6ghz_oper *he_6ghz_oper; | |
3365 | bool support_80_80, support_160; | |
3366 | u8 he_phy_cap; | |
3367 | u32 freq; | |
3368 | ||
3369 | if (chandef->chan->band != NL80211_BAND_6GHZ) | |
3370 | return true; | |
3371 | ||
3372 | sband = local->hw.wiphy->bands[NL80211_BAND_6GHZ]; | |
3373 | ||
3374 | he_cap = ieee80211_get_he_iftype_cap(sband, iftype); | |
3375 | if (!he_cap) { | |
3376 | sdata_info(sdata, "Missing iftype sband data/HE cap"); | |
3377 | return false; | |
3378 | } | |
3379 | ||
3380 | he_phy_cap = he_cap->he_cap_elem.phy_cap_info[0]; | |
3381 | support_160 = | |
3382 | he_phy_cap & | |
3383 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; | |
3384 | support_80_80 = | |
3385 | he_phy_cap & | |
3386 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_80PLUS80_MHZ_IN_5G; | |
3387 | ||
3388 | if (!he_oper) { | |
3389 | sdata_info(sdata, | |
3390 | "HE is not advertised on (on %d MHz), expect issues\n", | |
3391 | chandef->chan->center_freq); | |
3392 | return false; | |
3393 | } | |
3394 | ||
3395 | he_6ghz_oper = ieee80211_he_6ghz_oper(he_oper); | |
3396 | ||
3397 | if (!he_6ghz_oper) { | |
3398 | sdata_info(sdata, | |
3399 | "HE 6GHz operation missing (on %d MHz), expect issues\n", | |
3400 | chandef->chan->center_freq); | |
3401 | return false; | |
3402 | } | |
3403 | ||
3404 | freq = ieee80211_channel_to_frequency(he_6ghz_oper->primary, | |
3405 | NL80211_BAND_6GHZ); | |
3406 | he_chandef.chan = ieee80211_get_channel(sdata->local->hw.wiphy, freq); | |
3407 | ||
3408 | switch (u8_get_bits(he_6ghz_oper->control, | |
3409 | IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH)) { | |
3410 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_20MHZ: | |
3411 | he_chandef.width = NL80211_CHAN_WIDTH_20; | |
3412 | break; | |
3413 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_40MHZ: | |
3414 | he_chandef.width = NL80211_CHAN_WIDTH_40; | |
3415 | break; | |
3416 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_80MHZ: | |
3417 | he_chandef.width = NL80211_CHAN_WIDTH_80; | |
3418 | break; | |
3419 | case IEEE80211_HE_6GHZ_OPER_CTRL_CHANWIDTH_160MHZ: | |
3420 | he_chandef.width = NL80211_CHAN_WIDTH_80; | |
3421 | if (!he_6ghz_oper->ccfs1) | |
3422 | break; | |
3423 | if (abs(he_6ghz_oper->ccfs1 - he_6ghz_oper->ccfs0) == 8) { | |
3424 | if (support_160) | |
3425 | he_chandef.width = NL80211_CHAN_WIDTH_160; | |
3426 | } else { | |
3427 | if (support_80_80) | |
3428 | he_chandef.width = NL80211_CHAN_WIDTH_80P80; | |
3429 | } | |
3430 | break; | |
3431 | } | |
3432 | ||
3433 | if (he_chandef.width == NL80211_CHAN_WIDTH_160) { | |
3434 | he_chandef.center_freq1 = | |
3435 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, | |
3436 | NL80211_BAND_6GHZ); | |
3437 | } else { | |
3438 | he_chandef.center_freq1 = | |
3439 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs0, | |
3440 | NL80211_BAND_6GHZ); | |
75bcbd69 JC |
3441 | if (support_80_80 || support_160) |
3442 | he_chandef.center_freq2 = | |
3443 | ieee80211_channel_to_frequency(he_6ghz_oper->ccfs1, | |
3444 | NL80211_BAND_6GHZ); | |
57fa5e85 JB |
3445 | } |
3446 | ||
3447 | if (!cfg80211_chandef_valid(&he_chandef)) { | |
3448 | sdata_info(sdata, | |
3449 | "HE 6GHz operation resulted in invalid chandef: %d MHz/%d/%d MHz/%d MHz\n", | |
3450 | he_chandef.chan ? he_chandef.chan->center_freq : 0, | |
3451 | he_chandef.width, | |
3452 | he_chandef.center_freq1, | |
3453 | he_chandef.center_freq2); | |
3454 | return false; | |
3455 | } | |
3456 | ||
3457 | *chandef = he_chandef; | |
3458 | ||
8fca2b87 | 3459 | return true; |
1d00ce80 TP |
3460 | } |
3461 | ||
3462 | bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper, | |
3463 | struct cfg80211_chan_def *chandef) | |
3464 | { | |
3465 | u32 oper_freq; | |
3466 | ||
3467 | if (!oper) | |
3468 | return false; | |
3469 | ||
3470 | switch (FIELD_GET(S1G_OPER_CH_WIDTH_OPER, oper->ch_width)) { | |
3471 | case IEEE80211_S1G_CHANWIDTH_1MHZ: | |
3472 | chandef->width = NL80211_CHAN_WIDTH_1; | |
3473 | break; | |
3474 | case IEEE80211_S1G_CHANWIDTH_2MHZ: | |
3475 | chandef->width = NL80211_CHAN_WIDTH_2; | |
3476 | break; | |
3477 | case IEEE80211_S1G_CHANWIDTH_4MHZ: | |
3478 | chandef->width = NL80211_CHAN_WIDTH_4; | |
3479 | break; | |
3480 | case IEEE80211_S1G_CHANWIDTH_8MHZ: | |
3481 | chandef->width = NL80211_CHAN_WIDTH_8; | |
3482 | break; | |
3483 | case IEEE80211_S1G_CHANWIDTH_16MHZ: | |
3484 | chandef->width = NL80211_CHAN_WIDTH_16; | |
3485 | break; | |
3486 | default: | |
3487 | return false; | |
3488 | } | |
3489 | ||
3490 | oper_freq = ieee80211_channel_to_freq_khz(oper->oper_ch, | |
3491 | NL80211_BAND_S1GHZ); | |
3492 | chandef->center_freq1 = KHZ_TO_MHZ(oper_freq); | |
3493 | chandef->freq1_offset = oper_freq % 1000; | |
3494 | ||
57fa5e85 JB |
3495 | return true; |
3496 | } | |
3497 | ||
2103dec1 SW |
3498 | int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef, |
3499 | const struct ieee80211_supported_band *sband, | |
3500 | const u8 *srates, int srates_len, u32 *rates) | |
3501 | { | |
3502 | u32 rate_flags = ieee80211_chandef_rate_flags(chandef); | |
3503 | int shift = ieee80211_chandef_get_shift(chandef); | |
3504 | struct ieee80211_rate *br; | |
3505 | int brate, rate, i, j, count = 0; | |
3506 | ||
3507 | *rates = 0; | |
3508 | ||
3509 | for (i = 0; i < srates_len; i++) { | |
3510 | rate = srates[i] & 0x7f; | |
3511 | ||
3512 | for (j = 0; j < sband->n_bitrates; j++) { | |
3513 | br = &sband->bitrates[j]; | |
3514 | if ((rate_flags & br->flags) != rate_flags) | |
3515 | continue; | |
3516 | ||
3517 | brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); | |
3518 | if (brate == rate) { | |
3519 | *rates |= BIT(j); | |
3520 | count++; | |
3521 | break; | |
3522 | } | |
3523 | } | |
3524 | } | |
3525 | return count; | |
3526 | } | |
3527 | ||
fc8a7321 | 3528 | int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata, |
6b77863b | 3529 | struct sk_buff *skb, bool need_basic, |
57fbcce3 | 3530 | enum nl80211_band band) |
768db343 | 3531 | { |
768db343 AN |
3532 | struct ieee80211_local *local = sdata->local; |
3533 | struct ieee80211_supported_band *sband; | |
2103dec1 | 3534 | int rate, shift; |
768db343 | 3535 | u8 i, rates, *pos; |
fc8a7321 | 3536 | u32 basic_rates = sdata->vif.bss_conf.basic_rates; |
2103dec1 | 3537 | u32 rate_flags; |
768db343 | 3538 | |
2103dec1 SW |
3539 | shift = ieee80211_vif_get_shift(&sdata->vif); |
3540 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
6b77863b | 3541 | sband = local->hw.wiphy->bands[band]; |
2103dec1 SW |
3542 | rates = 0; |
3543 | for (i = 0; i < sband->n_bitrates; i++) { | |
3544 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) | |
3545 | continue; | |
3546 | rates++; | |
3547 | } | |
768db343 AN |
3548 | if (rates > 8) |
3549 | rates = 8; | |
3550 | ||
3551 | if (skb_tailroom(skb) < rates + 2) | |
3552 | return -ENOMEM; | |
3553 | ||
3554 | pos = skb_put(skb, rates + 2); | |
3555 | *pos++ = WLAN_EID_SUPP_RATES; | |
3556 | *pos++ = rates; | |
3557 | for (i = 0; i < rates; i++) { | |
657c3e0c | 3558 | u8 basic = 0; |
2103dec1 SW |
3559 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) |
3560 | continue; | |
3561 | ||
657c3e0c AN |
3562 | if (need_basic && basic_rates & BIT(i)) |
3563 | basic = 0x80; | |
2103dec1 SW |
3564 | rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, |
3565 | 5 * (1 << shift)); | |
3566 | *pos++ = basic | (u8) rate; | |
768db343 AN |
3567 | } |
3568 | ||
3569 | return 0; | |
3570 | } | |
3571 | ||
fc8a7321 | 3572 | int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata, |
6b77863b | 3573 | struct sk_buff *skb, bool need_basic, |
57fbcce3 | 3574 | enum nl80211_band band) |
768db343 | 3575 | { |
768db343 AN |
3576 | struct ieee80211_local *local = sdata->local; |
3577 | struct ieee80211_supported_band *sband; | |
cc63ec76 | 3578 | int rate, shift; |
768db343 | 3579 | u8 i, exrates, *pos; |
fc8a7321 | 3580 | u32 basic_rates = sdata->vif.bss_conf.basic_rates; |
2103dec1 SW |
3581 | u32 rate_flags; |
3582 | ||
3583 | rate_flags = ieee80211_chandef_rate_flags(&sdata->vif.bss_conf.chandef); | |
3584 | shift = ieee80211_vif_get_shift(&sdata->vif); | |
768db343 | 3585 | |
6b77863b | 3586 | sband = local->hw.wiphy->bands[band]; |
2103dec1 SW |
3587 | exrates = 0; |
3588 | for (i = 0; i < sband->n_bitrates; i++) { | |
3589 | if ((rate_flags & sband->bitrates[i].flags) != rate_flags) | |
3590 | continue; | |
3591 | exrates++; | |
3592 | } | |
3593 | ||
768db343 AN |
3594 | if (exrates > 8) |
3595 | exrates -= 8; | |
3596 | else | |
3597 | exrates = 0; | |
3598 | ||
3599 | if (skb_tailroom(skb) < exrates + 2) | |
3600 | return -ENOMEM; | |
3601 | ||
3602 | if (exrates) { | |
3603 | pos = skb_put(skb, exrates + 2); | |
3604 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
3605 | *pos++ = exrates; | |
3606 | for (i = 8; i < sband->n_bitrates; i++) { | |
657c3e0c | 3607 | u8 basic = 0; |
2103dec1 SW |
3608 | if ((rate_flags & sband->bitrates[i].flags) |
3609 | != rate_flags) | |
3610 | continue; | |
657c3e0c AN |
3611 | if (need_basic && basic_rates & BIT(i)) |
3612 | basic = 0x80; | |
2103dec1 SW |
3613 | rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, |
3614 | 5 * (1 << shift)); | |
3615 | *pos++ = basic | (u8) rate; | |
768db343 AN |
3616 | } |
3617 | } | |
3618 | return 0; | |
3619 | } | |
1dae27f8 WYG |
3620 | |
3621 | int ieee80211_ave_rssi(struct ieee80211_vif *vif) | |
3622 | { | |
3623 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
3624 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
3625 | ||
be6bcabc WYG |
3626 | if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) { |
3627 | /* non-managed type inferfaces */ | |
3628 | return 0; | |
3629 | } | |
338c17ae | 3630 | return -ewma_beacon_signal_read(&ifmgd->ave_beacon_signal); |
1dae27f8 | 3631 | } |
0d8a0a17 | 3632 | EXPORT_SYMBOL_GPL(ieee80211_ave_rssi); |
04ecd257 JB |
3633 | |
3634 | u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs) | |
3635 | { | |
3636 | if (!mcs) | |
3637 | return 1; | |
3638 | ||
3639 | /* TODO: consider rx_highest */ | |
3640 | ||
3641 | if (mcs->rx_mask[3]) | |
3642 | return 4; | |
3643 | if (mcs->rx_mask[2]) | |
3644 | return 3; | |
3645 | if (mcs->rx_mask[1]) | |
3646 | return 2; | |
3647 | return 1; | |
3648 | } | |
f4bda337 TP |
3649 | |
3650 | /** | |
3651 | * ieee80211_calculate_rx_timestamp - calculate timestamp in frame | |
3652 | * @local: mac80211 hw info struct | |
3653 | * @status: RX status | |
3654 | * @mpdu_len: total MPDU length (including FCS) | |
3655 | * @mpdu_offset: offset into MPDU to calculate timestamp at | |
3656 | * | |
3657 | * This function calculates the RX timestamp at the given MPDU offset, taking | |
3658 | * into account what the RX timestamp was. An offset of 0 will just normalize | |
3659 | * the timestamp to TSF at beginning of MPDU reception. | |
3660 | */ | |
3661 | u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local, | |
3662 | struct ieee80211_rx_status *status, | |
3663 | unsigned int mpdu_len, | |
3664 | unsigned int mpdu_offset) | |
3665 | { | |
3666 | u64 ts = status->mactime; | |
3667 | struct rate_info ri; | |
3668 | u16 rate; | |
da388233 | 3669 | u8 n_ltf; |
f4bda337 TP |
3670 | |
3671 | if (WARN_ON(!ieee80211_have_rx_timestamp(status))) | |
3672 | return 0; | |
3673 | ||
3674 | memset(&ri, 0, sizeof(ri)); | |
3675 | ||
35f4962c JB |
3676 | ri.bw = status->bw; |
3677 | ||
f4bda337 | 3678 | /* Fill cfg80211 rate info */ |
da6a4352 | 3679 | switch (status->encoding) { |
da388233 AS |
3680 | case RX_ENC_HE: |
3681 | ri.flags |= RATE_INFO_FLAGS_HE_MCS; | |
3682 | ri.mcs = status->rate_idx; | |
3683 | ri.nss = status->nss; | |
3684 | ri.he_ru_alloc = status->he_ru; | |
3685 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) | |
3686 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; | |
3687 | ||
3688 | /* | |
3689 | * See P802.11ax_D6.0, section 27.3.4 for | |
3690 | * VHT PPDU format. | |
3691 | */ | |
3692 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
3693 | mpdu_offset += 2; | |
3694 | ts += 36; | |
3695 | ||
3696 | /* | |
3697 | * TODO: | |
3698 | * For HE MU PPDU, add the HE-SIG-B. | |
3699 | * For HE ER PPDU, add 8us for the HE-SIG-A. | |
3700 | * For HE TB PPDU, add 4us for the HE-STF. | |
3701 | * Add the HE-LTF durations - variable. | |
3702 | */ | |
3703 | } | |
3704 | ||
3705 | break; | |
da6a4352 | 3706 | case RX_ENC_HT: |
f4bda337 TP |
3707 | ri.mcs = status->rate_idx; |
3708 | ri.flags |= RATE_INFO_FLAGS_MCS; | |
7fdd69c5 | 3709 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) |
f4bda337 | 3710 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; |
da388233 AS |
3711 | |
3712 | /* | |
3713 | * See P802.11REVmd_D3.0, section 19.3.2 for | |
3714 | * HT PPDU format. | |
3715 | */ | |
3716 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
3717 | mpdu_offset += 2; | |
3718 | if (status->enc_flags & RX_ENC_FLAG_HT_GF) | |
3719 | ts += 24; | |
3720 | else | |
3721 | ts += 32; | |
3722 | ||
3723 | /* | |
3724 | * Add Data HT-LTFs per streams | |
3725 | * TODO: add Extension HT-LTFs, 4us per LTF | |
3726 | */ | |
3727 | n_ltf = ((ri.mcs >> 3) & 3) + 1; | |
3728 | n_ltf = n_ltf == 3 ? 4 : n_ltf; | |
3729 | ts += n_ltf * 4; | |
3730 | } | |
3731 | ||
da6a4352 JB |
3732 | break; |
3733 | case RX_ENC_VHT: | |
5614618e JB |
3734 | ri.flags |= RATE_INFO_FLAGS_VHT_MCS; |
3735 | ri.mcs = status->rate_idx; | |
8613c948 | 3736 | ri.nss = status->nss; |
7fdd69c5 | 3737 | if (status->enc_flags & RX_ENC_FLAG_SHORT_GI) |
5614618e | 3738 | ri.flags |= RATE_INFO_FLAGS_SHORT_GI; |
da388233 AS |
3739 | |
3740 | /* | |
3741 | * See P802.11REVmd_D3.0, section 21.3.2 for | |
3742 | * VHT PPDU format. | |
3743 | */ | |
3744 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
3745 | mpdu_offset += 2; | |
3746 | ts += 36; | |
3747 | ||
3748 | /* | |
3749 | * Add VHT-LTFs per streams | |
3750 | */ | |
3751 | n_ltf = (ri.nss != 1) && (ri.nss % 2) ? | |
3752 | ri.nss + 1 : ri.nss; | |
3753 | ts += 4 * n_ltf; | |
3754 | } | |
3755 | ||
da6a4352 JB |
3756 | break; |
3757 | default: | |
3758 | WARN_ON(1); | |
fc0561dc | 3759 | fallthrough; |
da6a4352 | 3760 | case RX_ENC_LEGACY: { |
f4bda337 | 3761 | struct ieee80211_supported_band *sband; |
2103dec1 SW |
3762 | int shift = 0; |
3763 | int bitrate; | |
3764 | ||
da6a4352 JB |
3765 | switch (status->bw) { |
3766 | case RATE_INFO_BW_10: | |
2103dec1 | 3767 | shift = 1; |
da6a4352 JB |
3768 | break; |
3769 | case RATE_INFO_BW_5: | |
2103dec1 | 3770 | shift = 2; |
da6a4352 | 3771 | break; |
b51f3bee | 3772 | } |
f4bda337 TP |
3773 | |
3774 | sband = local->hw.wiphy->bands[status->band]; | |
2103dec1 SW |
3775 | bitrate = sband->bitrates[status->rate_idx].bitrate; |
3776 | ri.legacy = DIV_ROUND_UP(bitrate, (1 << shift)); | |
f4a0f0c5 JB |
3777 | |
3778 | if (status->flag & RX_FLAG_MACTIME_PLCP_START) { | |
57fbcce3 | 3779 | if (status->band == NL80211_BAND_5GHZ) { |
f4a0f0c5 JB |
3780 | ts += 20 << shift; |
3781 | mpdu_offset += 2; | |
7fdd69c5 | 3782 | } else if (status->enc_flags & RX_ENC_FLAG_SHORTPRE) { |
f4a0f0c5 JB |
3783 | ts += 96; |
3784 | } else { | |
3785 | ts += 192; | |
3786 | } | |
3787 | } | |
da6a4352 JB |
3788 | break; |
3789 | } | |
f4bda337 TP |
3790 | } |
3791 | ||
3792 | rate = cfg80211_calculate_bitrate(&ri); | |
d86aa4f8 | 3793 | if (WARN_ONCE(!rate, |
f980ebc0 SS |
3794 | "Invalid bitrate: flags=0x%llx, idx=%d, vht_nss=%d\n", |
3795 | (unsigned long long)status->flag, status->rate_idx, | |
8613c948 | 3796 | status->nss)) |
d86aa4f8 | 3797 | return 0; |
f4bda337 TP |
3798 | |
3799 | /* rewind from end of MPDU */ | |
3800 | if (status->flag & RX_FLAG_MACTIME_END) | |
3801 | ts -= mpdu_len * 8 * 10 / rate; | |
3802 | ||
3803 | ts += mpdu_offset * 8 * 10 / rate; | |
3804 | ||
3805 | return ts; | |
3806 | } | |
164eb02d SW |
3807 | |
3808 | void ieee80211_dfs_cac_cancel(struct ieee80211_local *local) | |
3809 | { | |
3810 | struct ieee80211_sub_if_data *sdata; | |
d2859df5 | 3811 | struct cfg80211_chan_def chandef; |
164eb02d | 3812 | |
4a199068 | 3813 | /* for interface list, to avoid linking iflist_mtx and chanctx_mtx */ |
a05829a7 | 3814 | lockdep_assert_wiphy(local->hw.wiphy); |
4a199068 | 3815 | |
34a3740d | 3816 | mutex_lock(&local->mtx); |
164eb02d | 3817 | list_for_each_entry(sdata, &local->interfaces, list) { |
34a3740d JB |
3818 | /* it might be waiting for the local->mtx, but then |
3819 | * by the time it gets it, sdata->wdev.cac_started | |
3820 | * will no longer be true | |
3821 | */ | |
3822 | cancel_delayed_work(&sdata->dfs_cac_timer_work); | |
164eb02d SW |
3823 | |
3824 | if (sdata->wdev.cac_started) { | |
d2859df5 | 3825 | chandef = sdata->vif.bss_conf.chandef; |
164eb02d SW |
3826 | ieee80211_vif_release_channel(sdata); |
3827 | cfg80211_cac_event(sdata->dev, | |
d2859df5 | 3828 | &chandef, |
164eb02d SW |
3829 | NL80211_RADAR_CAC_ABORTED, |
3830 | GFP_KERNEL); | |
3831 | } | |
3832 | } | |
34a3740d | 3833 | mutex_unlock(&local->mtx); |
164eb02d SW |
3834 | } |
3835 | ||
3836 | void ieee80211_dfs_radar_detected_work(struct work_struct *work) | |
3837 | { | |
3838 | struct ieee80211_local *local = | |
3839 | container_of(work, struct ieee80211_local, radar_detected_work); | |
84a3d1c9 | 3840 | struct cfg80211_chan_def chandef = local->hw.conf.chandef; |
486cf4c0 MK |
3841 | struct ieee80211_chanctx *ctx; |
3842 | int num_chanctx = 0; | |
3843 | ||
3844 | mutex_lock(&local->chanctx_mtx); | |
3845 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
3846 | if (ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER) | |
3847 | continue; | |
3848 | ||
3849 | num_chanctx++; | |
3850 | chandef = ctx->conf.def; | |
3851 | } | |
3852 | mutex_unlock(&local->chanctx_mtx); | |
164eb02d | 3853 | |
a05829a7 | 3854 | wiphy_lock(local->hw.wiphy); |
164eb02d | 3855 | ieee80211_dfs_cac_cancel(local); |
a05829a7 | 3856 | wiphy_unlock(local->hw.wiphy); |
164eb02d | 3857 | |
486cf4c0 MK |
3858 | if (num_chanctx > 1) |
3859 | /* XXX: multi-channel is not supported yet */ | |
164eb02d | 3860 | WARN_ON(1); |
84a3d1c9 | 3861 | else |
164eb02d | 3862 | cfg80211_radar_event(local->hw.wiphy, &chandef, GFP_KERNEL); |
164eb02d SW |
3863 | } |
3864 | ||
3865 | void ieee80211_radar_detected(struct ieee80211_hw *hw) | |
3866 | { | |
3867 | struct ieee80211_local *local = hw_to_local(hw); | |
3868 | ||
3869 | trace_api_radar_detected(local); | |
3870 | ||
4a199068 | 3871 | schedule_work(&local->radar_detected_work); |
164eb02d SW |
3872 | } |
3873 | EXPORT_SYMBOL(ieee80211_radar_detected); | |
e6b7cde4 SW |
3874 | |
3875 | u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c) | |
3876 | { | |
3877 | u32 ret; | |
3878 | int tmp; | |
3879 | ||
3880 | switch (c->width) { | |
3881 | case NL80211_CHAN_WIDTH_20: | |
3882 | c->width = NL80211_CHAN_WIDTH_20_NOHT; | |
3883 | ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; | |
3884 | break; | |
3885 | case NL80211_CHAN_WIDTH_40: | |
3886 | c->width = NL80211_CHAN_WIDTH_20; | |
3887 | c->center_freq1 = c->chan->center_freq; | |
3888 | ret = IEEE80211_STA_DISABLE_40MHZ | | |
3889 | IEEE80211_STA_DISABLE_VHT; | |
3890 | break; | |
3891 | case NL80211_CHAN_WIDTH_80: | |
3892 | tmp = (30 + c->chan->center_freq - c->center_freq1)/20; | |
3893 | /* n_P40 */ | |
3894 | tmp /= 2; | |
3895 | /* freq_P40 */ | |
3896 | c->center_freq1 = c->center_freq1 - 20 + 40 * tmp; | |
3897 | c->width = NL80211_CHAN_WIDTH_40; | |
3898 | ret = IEEE80211_STA_DISABLE_VHT; | |
3899 | break; | |
3900 | case NL80211_CHAN_WIDTH_80P80: | |
3901 | c->center_freq2 = 0; | |
3902 | c->width = NL80211_CHAN_WIDTH_80; | |
3903 | ret = IEEE80211_STA_DISABLE_80P80MHZ | | |
3904 | IEEE80211_STA_DISABLE_160MHZ; | |
3905 | break; | |
3906 | case NL80211_CHAN_WIDTH_160: | |
3907 | /* n_P20 */ | |
3908 | tmp = (70 + c->chan->center_freq - c->center_freq1)/20; | |
3909 | /* n_P80 */ | |
3910 | tmp /= 4; | |
3911 | c->center_freq1 = c->center_freq1 - 40 + 80 * tmp; | |
3912 | c->width = NL80211_CHAN_WIDTH_80; | |
3913 | ret = IEEE80211_STA_DISABLE_80P80MHZ | | |
3914 | IEEE80211_STA_DISABLE_160MHZ; | |
3915 | break; | |
3916 | default: | |
3917 | case NL80211_CHAN_WIDTH_20_NOHT: | |
3918 | WARN_ON_ONCE(1); | |
3919 | c->width = NL80211_CHAN_WIDTH_20_NOHT; | |
3920 | ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; | |
3921 | break; | |
df78a0c0 TP |
3922 | case NL80211_CHAN_WIDTH_1: |
3923 | case NL80211_CHAN_WIDTH_2: | |
3924 | case NL80211_CHAN_WIDTH_4: | |
3925 | case NL80211_CHAN_WIDTH_8: | |
3926 | case NL80211_CHAN_WIDTH_16: | |
e6b7cde4 SW |
3927 | case NL80211_CHAN_WIDTH_5: |
3928 | case NL80211_CHAN_WIDTH_10: | |
3929 | WARN_ON_ONCE(1); | |
3930 | /* keep c->width */ | |
3931 | ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT; | |
3932 | break; | |
3933 | } | |
3934 | ||
3935 | WARN_ON_ONCE(!cfg80211_chandef_valid(c)); | |
3936 | ||
3937 | return ret; | |
3938 | } | |
687da132 EG |
3939 | |
3940 | /* | |
3941 | * Returns true if smps_mode_new is strictly more restrictive than | |
3942 | * smps_mode_old. | |
3943 | */ | |
3944 | bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old, | |
3945 | enum ieee80211_smps_mode smps_mode_new) | |
3946 | { | |
3947 | if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC || | |
3948 | smps_mode_new == IEEE80211_SMPS_AUTOMATIC)) | |
3949 | return false; | |
3950 | ||
3951 | switch (smps_mode_old) { | |
3952 | case IEEE80211_SMPS_STATIC: | |
3953 | return false; | |
3954 | case IEEE80211_SMPS_DYNAMIC: | |
3955 | return smps_mode_new == IEEE80211_SMPS_STATIC; | |
3956 | case IEEE80211_SMPS_OFF: | |
3957 | return smps_mode_new != IEEE80211_SMPS_OFF; | |
3958 | default: | |
3959 | WARN_ON(1); | |
3960 | } | |
3961 | ||
3962 | return false; | |
3963 | } | |
c6da674a CYY |
3964 | |
3965 | int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata, | |
3966 | struct cfg80211_csa_settings *csa_settings) | |
3967 | { | |
3968 | struct sk_buff *skb; | |
3969 | struct ieee80211_mgmt *mgmt; | |
3970 | struct ieee80211_local *local = sdata->local; | |
3971 | int freq; | |
4c121fd6 JB |
3972 | int hdr_len = offsetofend(struct ieee80211_mgmt, |
3973 | u.action.u.chan_switch); | |
c6da674a CYY |
3974 | u8 *pos; |
3975 | ||
3976 | if (sdata->vif.type != NL80211_IFTYPE_ADHOC && | |
3977 | sdata->vif.type != NL80211_IFTYPE_MESH_POINT) | |
3978 | return -EOPNOTSUPP; | |
3979 | ||
3980 | skb = dev_alloc_skb(local->tx_headroom + hdr_len + | |
3981 | 5 + /* channel switch announcement element */ | |
3982 | 3 + /* secondary channel offset element */ | |
75d627d5 | 3983 | 5 + /* wide bandwidth channel switch announcement */ |
c6da674a CYY |
3984 | 8); /* mesh channel switch parameters element */ |
3985 | if (!skb) | |
3986 | return -ENOMEM; | |
3987 | ||
3988 | skb_reserve(skb, local->tx_headroom); | |
b080db58 | 3989 | mgmt = skb_put_zero(skb, hdr_len); |
c6da674a CYY |
3990 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
3991 | IEEE80211_STYPE_ACTION); | |
3992 | ||
3993 | eth_broadcast_addr(mgmt->da); | |
3994 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); | |
3995 | if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
3996 | memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN); | |
3997 | } else { | |
3998 | struct ieee80211_if_ibss *ifibss = &sdata->u.ibss; | |
3999 | memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN); | |
4000 | } | |
4001 | mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT; | |
4002 | mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH; | |
4003 | pos = skb_put(skb, 5); | |
4004 | *pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */ | |
4005 | *pos++ = 3; /* IE length */ | |
4006 | *pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */ | |
4007 | freq = csa_settings->chandef.chan->center_freq; | |
4008 | *pos++ = ieee80211_frequency_to_channel(freq); /* channel */ | |
4009 | *pos++ = csa_settings->count; /* count */ | |
4010 | ||
4011 | if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) { | |
4012 | enum nl80211_channel_type ch_type; | |
4013 | ||
4014 | skb_put(skb, 3); | |
4015 | *pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */ | |
4016 | *pos++ = 1; /* IE length */ | |
4017 | ch_type = cfg80211_get_chandef_type(&csa_settings->chandef); | |
4018 | if (ch_type == NL80211_CHAN_HT40PLUS) | |
4019 | *pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE; | |
4020 | else | |
4021 | *pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW; | |
4022 | } | |
4023 | ||
4024 | if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
4025 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; | |
c6da674a CYY |
4026 | |
4027 | skb_put(skb, 8); | |
4028 | *pos++ = WLAN_EID_CHAN_SWITCH_PARAM; /* EID */ | |
4029 | *pos++ = 6; /* IE length */ | |
4030 | *pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL; /* Mesh TTL */ | |
4031 | *pos = 0x00; /* Mesh Flag: Tx Restrict, Initiator, Reason */ | |
4032 | *pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR; | |
4033 | *pos++ |= csa_settings->block_tx ? | |
4034 | WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00; | |
4035 | put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */ | |
4036 | pos += 2; | |
ca91dc97 | 4037 | put_unaligned_le16(ifmsh->pre_value, pos);/* Precedence Value */ |
c6da674a | 4038 | pos += 2; |
c6da674a CYY |
4039 | } |
4040 | ||
75d627d5 SW |
4041 | if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_80 || |
4042 | csa_settings->chandef.width == NL80211_CHAN_WIDTH_80P80 || | |
4043 | csa_settings->chandef.width == NL80211_CHAN_WIDTH_160) { | |
4044 | skb_put(skb, 5); | |
4045 | ieee80211_ie_build_wide_bw_cs(pos, &csa_settings->chandef); | |
4046 | } | |
4047 | ||
c6da674a CYY |
4048 | ieee80211_tx_skb(sdata, skb); |
4049 | return 0; | |
4050 | } | |
2475b1cc MS |
4051 | |
4052 | bool ieee80211_cs_valid(const struct ieee80211_cipher_scheme *cs) | |
4053 | { | |
4054 | return !(cs == NULL || cs->cipher == 0 || | |
4055 | cs->hdr_len < cs->pn_len + cs->pn_off || | |
4056 | cs->hdr_len <= cs->key_idx_off || | |
4057 | cs->key_idx_shift > 7 || | |
4058 | cs->key_idx_mask == 0); | |
4059 | } | |
4060 | ||
4061 | bool ieee80211_cs_list_valid(const struct ieee80211_cipher_scheme *cs, int n) | |
4062 | { | |
4063 | int i; | |
4064 | ||
4065 | /* Ensure we have enough iftype bitmap space for all iftype values */ | |
4066 | WARN_ON((NUM_NL80211_IFTYPES / 8 + 1) > sizeof(cs[0].iftype)); | |
4067 | ||
4068 | for (i = 0; i < n; i++) | |
4069 | if (!ieee80211_cs_valid(&cs[i])) | |
4070 | return false; | |
4071 | ||
4072 | return true; | |
4073 | } | |
4074 | ||
4075 | const struct ieee80211_cipher_scheme * | |
4076 | ieee80211_cs_get(struct ieee80211_local *local, u32 cipher, | |
4077 | enum nl80211_iftype iftype) | |
4078 | { | |
4079 | const struct ieee80211_cipher_scheme *l = local->hw.cipher_schemes; | |
4080 | int n = local->hw.n_cipher_schemes; | |
4081 | int i; | |
4082 | const struct ieee80211_cipher_scheme *cs = NULL; | |
4083 | ||
4084 | for (i = 0; i < n; i++) { | |
4085 | if (l[i].cipher == cipher) { | |
4086 | cs = &l[i]; | |
4087 | break; | |
4088 | } | |
4089 | } | |
4090 | ||
4091 | if (!cs || !(cs->iftype & BIT(iftype))) | |
4092 | return NULL; | |
4093 | ||
4094 | return cs; | |
4095 | } | |
4096 | ||
4097 | int ieee80211_cs_headroom(struct ieee80211_local *local, | |
4098 | struct cfg80211_crypto_settings *crypto, | |
4099 | enum nl80211_iftype iftype) | |
4100 | { | |
4101 | const struct ieee80211_cipher_scheme *cs; | |
4102 | int headroom = IEEE80211_ENCRYPT_HEADROOM; | |
4103 | int i; | |
4104 | ||
4105 | for (i = 0; i < crypto->n_ciphers_pairwise; i++) { | |
4106 | cs = ieee80211_cs_get(local, crypto->ciphers_pairwise[i], | |
4107 | iftype); | |
4108 | ||
4109 | if (cs && headroom < cs->hdr_len) | |
4110 | headroom = cs->hdr_len; | |
4111 | } | |
4112 | ||
4113 | cs = ieee80211_cs_get(local, crypto->cipher_group, iftype); | |
4114 | if (cs && headroom < cs->hdr_len) | |
4115 | headroom = cs->hdr_len; | |
4116 | ||
4117 | return headroom; | |
4118 | } | |
a7022e65 FF |
4119 | |
4120 | static bool | |
4121 | ieee80211_extend_noa_desc(struct ieee80211_noa_data *data, u32 tsf, int i) | |
4122 | { | |
4123 | s32 end = data->desc[i].start + data->desc[i].duration - (tsf + 1); | |
4124 | int skip; | |
4125 | ||
4126 | if (end > 0) | |
4127 | return false; | |
4128 | ||
519ee691 JD |
4129 | /* One shot NOA */ |
4130 | if (data->count[i] == 1) | |
4131 | return false; | |
4132 | ||
4133 | if (data->desc[i].interval == 0) | |
4134 | return false; | |
4135 | ||
a7022e65 FF |
4136 | /* End time is in the past, check for repetitions */ |
4137 | skip = DIV_ROUND_UP(-end, data->desc[i].interval); | |
4138 | if (data->count[i] < 255) { | |
4139 | if (data->count[i] <= skip) { | |
4140 | data->count[i] = 0; | |
4141 | return false; | |
4142 | } | |
4143 | ||
4144 | data->count[i] -= skip; | |
4145 | } | |
4146 | ||
4147 | data->desc[i].start += skip * data->desc[i].interval; | |
4148 | ||
4149 | return true; | |
4150 | } | |
4151 | ||
4152 | static bool | |
4153 | ieee80211_extend_absent_time(struct ieee80211_noa_data *data, u32 tsf, | |
4154 | s32 *offset) | |
4155 | { | |
4156 | bool ret = false; | |
4157 | int i; | |
4158 | ||
4159 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4160 | s32 cur; | |
4161 | ||
4162 | if (!data->count[i]) | |
4163 | continue; | |
4164 | ||
4165 | if (ieee80211_extend_noa_desc(data, tsf + *offset, i)) | |
4166 | ret = true; | |
4167 | ||
4168 | cur = data->desc[i].start - tsf; | |
4169 | if (cur > *offset) | |
4170 | continue; | |
4171 | ||
4172 | cur = data->desc[i].start + data->desc[i].duration - tsf; | |
4173 | if (cur > *offset) | |
4174 | *offset = cur; | |
4175 | } | |
4176 | ||
4177 | return ret; | |
4178 | } | |
4179 | ||
4180 | static u32 | |
4181 | ieee80211_get_noa_absent_time(struct ieee80211_noa_data *data, u32 tsf) | |
4182 | { | |
4183 | s32 offset = 0; | |
4184 | int tries = 0; | |
4185 | /* | |
4186 | * arbitrary limit, used to avoid infinite loops when combined NoA | |
4187 | * descriptors cover the full time period. | |
4188 | */ | |
4189 | int max_tries = 5; | |
4190 | ||
4191 | ieee80211_extend_absent_time(data, tsf, &offset); | |
4192 | do { | |
4193 | if (!ieee80211_extend_absent_time(data, tsf, &offset)) | |
4194 | break; | |
4195 | ||
4196 | tries++; | |
4197 | } while (tries < max_tries); | |
4198 | ||
4199 | return offset; | |
4200 | } | |
4201 | ||
4202 | void ieee80211_update_p2p_noa(struct ieee80211_noa_data *data, u32 tsf) | |
4203 | { | |
4204 | u32 next_offset = BIT(31) - 1; | |
4205 | int i; | |
4206 | ||
4207 | data->absent = 0; | |
4208 | data->has_next_tsf = false; | |
4209 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4210 | s32 start; | |
4211 | ||
4212 | if (!data->count[i]) | |
4213 | continue; | |
4214 | ||
4215 | ieee80211_extend_noa_desc(data, tsf, i); | |
4216 | start = data->desc[i].start - tsf; | |
4217 | if (start <= 0) | |
4218 | data->absent |= BIT(i); | |
4219 | ||
4220 | if (next_offset > start) | |
4221 | next_offset = start; | |
4222 | ||
4223 | data->has_next_tsf = true; | |
4224 | } | |
4225 | ||
4226 | if (data->absent) | |
4227 | next_offset = ieee80211_get_noa_absent_time(data, tsf); | |
4228 | ||
4229 | data->next_tsf = tsf + next_offset; | |
4230 | } | |
4231 | EXPORT_SYMBOL(ieee80211_update_p2p_noa); | |
4232 | ||
4233 | int ieee80211_parse_p2p_noa(const struct ieee80211_p2p_noa_attr *attr, | |
4234 | struct ieee80211_noa_data *data, u32 tsf) | |
4235 | { | |
4236 | int ret = 0; | |
4237 | int i; | |
4238 | ||
4239 | memset(data, 0, sizeof(*data)); | |
4240 | ||
4241 | for (i = 0; i < IEEE80211_P2P_NOA_DESC_MAX; i++) { | |
4242 | const struct ieee80211_p2p_noa_desc *desc = &attr->desc[i]; | |
4243 | ||
4244 | if (!desc->count || !desc->duration) | |
4245 | continue; | |
4246 | ||
4247 | data->count[i] = desc->count; | |
4248 | data->desc[i].start = le32_to_cpu(desc->start_time); | |
4249 | data->desc[i].duration = le32_to_cpu(desc->duration); | |
4250 | data->desc[i].interval = le32_to_cpu(desc->interval); | |
4251 | ||
4252 | if (data->count[i] > 1 && | |
4253 | data->desc[i].interval < data->desc[i].duration) | |
4254 | continue; | |
4255 | ||
4256 | ieee80211_extend_noa_desc(data, tsf, i); | |
4257 | ret++; | |
4258 | } | |
4259 | ||
4260 | if (ret) | |
4261 | ieee80211_update_p2p_noa(data, tsf); | |
4262 | ||
4263 | return ret; | |
4264 | } | |
4265 | EXPORT_SYMBOL(ieee80211_parse_p2p_noa); | |
057d5f4b TP |
4266 | |
4267 | void ieee80211_recalc_dtim(struct ieee80211_local *local, | |
4268 | struct ieee80211_sub_if_data *sdata) | |
4269 | { | |
4270 | u64 tsf = drv_get_tsf(local, sdata); | |
4271 | u64 dtim_count = 0; | |
4272 | u16 beacon_int = sdata->vif.bss_conf.beacon_int * 1024; | |
4273 | u8 dtim_period = sdata->vif.bss_conf.dtim_period; | |
4274 | struct ps_data *ps; | |
4275 | u8 bcns_from_dtim; | |
4276 | ||
4277 | if (tsf == -1ULL || !beacon_int || !dtim_period) | |
4278 | return; | |
4279 | ||
4280 | if (sdata->vif.type == NL80211_IFTYPE_AP || | |
4281 | sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { | |
4282 | if (!sdata->bss) | |
4283 | return; | |
4284 | ||
4285 | ps = &sdata->bss->ps; | |
4286 | } else if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
4287 | ps = &sdata->u.mesh.ps; | |
4288 | } else { | |
4289 | return; | |
4290 | } | |
4291 | ||
4292 | /* | |
4293 | * actually finds last dtim_count, mac80211 will update in | |
4294 | * __beacon_add_tim(). | |
4295 | * dtim_count = dtim_period - (tsf / bcn_int) % dtim_period | |
4296 | */ | |
4297 | do_div(tsf, beacon_int); | |
4298 | bcns_from_dtim = do_div(tsf, dtim_period); | |
4299 | /* just had a DTIM */ | |
4300 | if (!bcns_from_dtim) | |
4301 | dtim_count = 0; | |
4302 | else | |
4303 | dtim_count = dtim_period - bcns_from_dtim; | |
4304 | ||
4305 | ps->dtim_count = dtim_count; | |
4306 | } | |
73de86a3 | 4307 | |
71e6195e MK |
4308 | static u8 ieee80211_chanctx_radar_detect(struct ieee80211_local *local, |
4309 | struct ieee80211_chanctx *ctx) | |
4310 | { | |
4311 | struct ieee80211_sub_if_data *sdata; | |
4312 | u8 radar_detect = 0; | |
4313 | ||
4314 | lockdep_assert_held(&local->chanctx_mtx); | |
4315 | ||
4316 | if (WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED)) | |
4317 | return 0; | |
4318 | ||
4319 | list_for_each_entry(sdata, &ctx->reserved_vifs, reserved_chanctx_list) | |
4320 | if (sdata->reserved_radar_required) | |
4321 | radar_detect |= BIT(sdata->reserved_chandef.width); | |
4322 | ||
4323 | /* | |
4324 | * An in-place reservation context should not have any assigned vifs | |
4325 | * until it replaces the other context. | |
4326 | */ | |
4327 | WARN_ON(ctx->replace_state == IEEE80211_CHANCTX_REPLACES_OTHER && | |
4328 | !list_empty(&ctx->assigned_vifs)); | |
4329 | ||
4330 | list_for_each_entry(sdata, &ctx->assigned_vifs, assigned_chanctx_list) | |
4331 | if (sdata->radar_required) | |
4332 | radar_detect |= BIT(sdata->vif.bss_conf.chandef.width); | |
4333 | ||
4334 | return radar_detect; | |
4335 | } | |
4336 | ||
73de86a3 LC |
4337 | int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, |
4338 | const struct cfg80211_chan_def *chandef, | |
4339 | enum ieee80211_chanctx_mode chanmode, | |
4340 | u8 radar_detect) | |
4341 | { | |
4342 | struct ieee80211_local *local = sdata->local; | |
4343 | struct ieee80211_sub_if_data *sdata_iter; | |
4344 | enum nl80211_iftype iftype = sdata->wdev.iftype; | |
73de86a3 | 4345 | struct ieee80211_chanctx *ctx; |
73de86a3 | 4346 | int total = 1; |
e227300c PK |
4347 | struct iface_combination_params params = { |
4348 | .radar_detect = radar_detect, | |
4349 | }; | |
73de86a3 LC |
4350 | |
4351 | lockdep_assert_held(&local->chanctx_mtx); | |
4352 | ||
4353 | if (WARN_ON(hweight32(radar_detect) > 1)) | |
4354 | return -EINVAL; | |
4355 | ||
b6a55015 LC |
4356 | if (WARN_ON(chandef && chanmode == IEEE80211_CHANCTX_SHARED && |
4357 | !chandef->chan)) | |
73de86a3 LC |
4358 | return -EINVAL; |
4359 | ||
4360 | if (WARN_ON(iftype >= NUM_NL80211_IFTYPES)) | |
4361 | return -EINVAL; | |
4362 | ||
ac668afe JB |
4363 | if (sdata->vif.type == NL80211_IFTYPE_AP || |
4364 | sdata->vif.type == NL80211_IFTYPE_MESH_POINT) { | |
4365 | /* | |
4366 | * always passing this is harmless, since it'll be the | |
4367 | * same value that cfg80211 finds if it finds the same | |
4368 | * interface ... and that's always allowed | |
4369 | */ | |
4370 | params.new_beacon_int = sdata->vif.bss_conf.beacon_int; | |
4371 | } | |
4372 | ||
73de86a3 | 4373 | /* Always allow software iftypes */ |
e6f40511 | 4374 | if (cfg80211_iftype_allowed(local->hw.wiphy, iftype, 0, 1)) { |
73de86a3 LC |
4375 | if (radar_detect) |
4376 | return -EINVAL; | |
4377 | return 0; | |
4378 | } | |
4379 | ||
e227300c PK |
4380 | if (chandef) |
4381 | params.num_different_channels = 1; | |
73de86a3 LC |
4382 | |
4383 | if (iftype != NL80211_IFTYPE_UNSPECIFIED) | |
e227300c | 4384 | params.iftype_num[iftype] = 1; |
73de86a3 LC |
4385 | |
4386 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
5bcae31d MK |
4387 | if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) |
4388 | continue; | |
e227300c PK |
4389 | params.radar_detect |= |
4390 | ieee80211_chanctx_radar_detect(local, ctx); | |
73de86a3 | 4391 | if (ctx->mode == IEEE80211_CHANCTX_EXCLUSIVE) { |
e227300c | 4392 | params.num_different_channels++; |
73de86a3 LC |
4393 | continue; |
4394 | } | |
b6a55015 | 4395 | if (chandef && chanmode == IEEE80211_CHANCTX_SHARED && |
73de86a3 LC |
4396 | cfg80211_chandef_compatible(chandef, |
4397 | &ctx->conf.def)) | |
4398 | continue; | |
e227300c | 4399 | params.num_different_channels++; |
73de86a3 LC |
4400 | } |
4401 | ||
4402 | list_for_each_entry_rcu(sdata_iter, &local->interfaces, list) { | |
4403 | struct wireless_dev *wdev_iter; | |
4404 | ||
4405 | wdev_iter = &sdata_iter->wdev; | |
4406 | ||
4407 | if (sdata_iter == sdata || | |
0f611d28 | 4408 | !ieee80211_sdata_running(sdata_iter) || |
e6f40511 MP |
4409 | cfg80211_iftype_allowed(local->hw.wiphy, |
4410 | wdev_iter->iftype, 0, 1)) | |
73de86a3 LC |
4411 | continue; |
4412 | ||
e227300c | 4413 | params.iftype_num[wdev_iter->iftype]++; |
73de86a3 LC |
4414 | total++; |
4415 | } | |
4416 | ||
e227300c | 4417 | if (total == 1 && !params.radar_detect) |
73de86a3 LC |
4418 | return 0; |
4419 | ||
e227300c | 4420 | return cfg80211_check_combinations(local->hw.wiphy, ¶ms); |
73de86a3 | 4421 | } |
6fa001bc MK |
4422 | |
4423 | static void | |
4424 | ieee80211_iter_max_chans(const struct ieee80211_iface_combination *c, | |
4425 | void *data) | |
4426 | { | |
4427 | u32 *max_num_different_channels = data; | |
4428 | ||
4429 | *max_num_different_channels = max(*max_num_different_channels, | |
4430 | c->num_different_channels); | |
4431 | } | |
4432 | ||
4433 | int ieee80211_max_num_channels(struct ieee80211_local *local) | |
4434 | { | |
4435 | struct ieee80211_sub_if_data *sdata; | |
6fa001bc | 4436 | struct ieee80211_chanctx *ctx; |
6fa001bc MK |
4437 | u32 max_num_different_channels = 1; |
4438 | int err; | |
e227300c | 4439 | struct iface_combination_params params = {0}; |
6fa001bc MK |
4440 | |
4441 | lockdep_assert_held(&local->chanctx_mtx); | |
4442 | ||
4443 | list_for_each_entry(ctx, &local->chanctx_list, list) { | |
5bcae31d MK |
4444 | if (ctx->replace_state == IEEE80211_CHANCTX_WILL_BE_REPLACED) |
4445 | continue; | |
4446 | ||
e227300c | 4447 | params.num_different_channels++; |
6fa001bc | 4448 | |
e227300c PK |
4449 | params.radar_detect |= |
4450 | ieee80211_chanctx_radar_detect(local, ctx); | |
6fa001bc MK |
4451 | } |
4452 | ||
4453 | list_for_each_entry_rcu(sdata, &local->interfaces, list) | |
e227300c | 4454 | params.iftype_num[sdata->wdev.iftype]++; |
6fa001bc | 4455 | |
e227300c PK |
4456 | err = cfg80211_iter_combinations(local->hw.wiphy, ¶ms, |
4457 | ieee80211_iter_max_chans, | |
6fa001bc MK |
4458 | &max_num_different_channels); |
4459 | if (err < 0) | |
4460 | return err; | |
4461 | ||
4462 | return max_num_different_channels; | |
7957c6c8 TP |
4463 | } |
4464 | ||
4465 | void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata, | |
4466 | struct ieee80211_sta_s1g_cap *caps, | |
4467 | struct sk_buff *skb) | |
4468 | { | |
4469 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
4470 | struct ieee80211_s1g_cap s1g_capab; | |
4471 | u8 *pos; | |
4472 | int i; | |
4473 | ||
4474 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
4475 | return; | |
4476 | ||
4477 | if (!caps->s1g) | |
4478 | return; | |
4479 | ||
4480 | memcpy(s1g_capab.capab_info, caps->cap, sizeof(caps->cap)); | |
4481 | memcpy(s1g_capab.supp_mcs_nss, caps->nss_mcs, sizeof(caps->nss_mcs)); | |
4482 | ||
4483 | /* override the capability info */ | |
4484 | for (i = 0; i < sizeof(ifmgd->s1g_capa.capab_info); i++) { | |
4485 | u8 mask = ifmgd->s1g_capa_mask.capab_info[i]; | |
4486 | ||
4487 | s1g_capab.capab_info[i] &= ~mask; | |
4488 | s1g_capab.capab_info[i] |= ifmgd->s1g_capa.capab_info[i] & mask; | |
4489 | } | |
4490 | ||
4491 | /* then MCS and NSS set */ | |
4492 | for (i = 0; i < sizeof(ifmgd->s1g_capa.supp_mcs_nss); i++) { | |
4493 | u8 mask = ifmgd->s1g_capa_mask.supp_mcs_nss[i]; | |
4494 | ||
4495 | s1g_capab.supp_mcs_nss[i] &= ~mask; | |
4496 | s1g_capab.supp_mcs_nss[i] |= | |
4497 | ifmgd->s1g_capa.supp_mcs_nss[i] & mask; | |
4498 | } | |
4499 | ||
4500 | pos = skb_put(skb, 2 + sizeof(s1g_capab)); | |
4501 | *pos++ = WLAN_EID_S1G_CAPABILITIES; | |
4502 | *pos++ = sizeof(s1g_capab); | |
4503 | ||
4504 | memcpy(pos, &s1g_capab, sizeof(s1g_capab)); | |
6fa001bc | 4505 | } |
40b861a0 | 4506 | |
1d00ce80 TP |
4507 | void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata, |
4508 | struct sk_buff *skb) | |
4509 | { | |
4510 | u8 *pos = skb_put(skb, 3); | |
4511 | ||
4512 | *pos++ = WLAN_EID_AID_REQUEST; | |
4513 | *pos++ = 1; | |
4514 | *pos++ = 0; | |
4515 | } | |
4516 | ||
40b861a0 AN |
4517 | u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo) |
4518 | { | |
4519 | *buf++ = WLAN_EID_VENDOR_SPECIFIC; | |
4520 | *buf++ = 7; /* len */ | |
4521 | *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */ | |
4522 | *buf++ = 0x50; | |
4523 | *buf++ = 0xf2; | |
4524 | *buf++ = 2; /* WME */ | |
4525 | *buf++ = 0; /* WME info */ | |
4526 | *buf++ = 1; /* WME ver */ | |
4527 | *buf++ = qosinfo; /* U-APSD no in use */ | |
4528 | ||
4529 | return buf; | |
4530 | } | |
ba8c3d6f | 4531 | |
f2ac7e30 MK |
4532 | void ieee80211_txq_get_depth(struct ieee80211_txq *txq, |
4533 | unsigned long *frame_cnt, | |
4534 | unsigned long *byte_cnt) | |
4535 | { | |
4536 | struct txq_info *txqi = to_txq_info(txq); | |
bb42f2d1 THJ |
4537 | u32 frag_cnt = 0, frag_bytes = 0; |
4538 | struct sk_buff *skb; | |
4539 | ||
4540 | skb_queue_walk(&txqi->frags, skb) { | |
4541 | frag_cnt++; | |
4542 | frag_bytes += skb->len; | |
4543 | } | |
f2ac7e30 MK |
4544 | |
4545 | if (frame_cnt) | |
bb42f2d1 | 4546 | *frame_cnt = txqi->tin.backlog_packets + frag_cnt; |
f2ac7e30 MK |
4547 | |
4548 | if (byte_cnt) | |
bb42f2d1 | 4549 | *byte_cnt = txqi->tin.backlog_bytes + frag_bytes; |
f2ac7e30 MK |
4550 | } |
4551 | EXPORT_SYMBOL(ieee80211_txq_get_depth); | |
f438ceb8 EG |
4552 | |
4553 | const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS] = { | |
4554 | IEEE80211_WMM_IE_STA_QOSINFO_AC_VO, | |
4555 | IEEE80211_WMM_IE_STA_QOSINFO_AC_VI, | |
4556 | IEEE80211_WMM_IE_STA_QOSINFO_AC_BE, | |
4557 | IEEE80211_WMM_IE_STA_QOSINFO_AC_BK | |
4558 | }; | |
05d10957 TP |
4559 | |
4560 | u16 ieee80211_encode_usf(int listen_interval) | |
4561 | { | |
4562 | static const int listen_int_usf[] = { 1, 10, 1000, 10000 }; | |
4563 | u16 ui, usf = 0; | |
4564 | ||
4565 | /* find greatest USF */ | |
4566 | while (usf < IEEE80211_MAX_USF) { | |
4567 | if (listen_interval % listen_int_usf[usf + 1]) | |
4568 | break; | |
4569 | usf += 1; | |
4570 | } | |
4571 | ui = listen_interval / listen_int_usf[usf]; | |
4572 | ||
4573 | /* error if there is a remainder. Should've been checked by user */ | |
4574 | WARN_ON_ONCE(ui > IEEE80211_MAX_UI); | |
4575 | listen_interval = FIELD_PREP(LISTEN_INT_USF, usf) | | |
4576 | FIELD_PREP(LISTEN_INT_UI, ui); | |
4577 | ||
4578 | return (u16) listen_interval; | |
4579 | } |