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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
f0706e82 JB |
2 | /* |
3 | * BSS client mode implementation | |
5394af4d | 4 | * Copyright 2003-2008, Jouni Malinen <j@w1.fi> |
f0706e82 JB |
5 | * Copyright 2004, Instant802 Networks, Inc. |
6 | * Copyright 2005, Devicescape Software, Inc. | |
7 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> | |
8 | * Copyright 2007, Michael Wu <flamingice@sourmilk.net> | |
d98ad83e | 9 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
e38a017b | 10 | * Copyright (C) 2015 - 2017 Intel Deutschland GmbH |
9bd6a83e | 11 | * Copyright (C) 2018 - 2021 Intel Corporation |
f0706e82 JB |
12 | */ |
13 | ||
5b323edb | 14 | #include <linux/delay.h> |
5fdb3735 | 15 | #include <linux/fips.h> |
f0706e82 JB |
16 | #include <linux/if_ether.h> |
17 | #include <linux/skbuff.h> | |
f0706e82 | 18 | #include <linux/if_arp.h> |
f0706e82 | 19 | #include <linux/etherdevice.h> |
d9b93842 | 20 | #include <linux/moduleparam.h> |
d0709a65 | 21 | #include <linux/rtnetlink.h> |
d91f36db | 22 | #include <linux/crc32.h> |
5a0e3ad6 | 23 | #include <linux/slab.h> |
bc3b2d7f | 24 | #include <linux/export.h> |
f0706e82 | 25 | #include <net/mac80211.h> |
472dbc45 | 26 | #include <asm/unaligned.h> |
60f8b39c | 27 | |
f0706e82 | 28 | #include "ieee80211_i.h" |
24487981 | 29 | #include "driver-ops.h" |
2c8dccc7 JB |
30 | #include "rate.h" |
31 | #include "led.h" | |
39404fee | 32 | #include "fils_aead.h" |
f0706e82 | 33 | |
1672c0e3 | 34 | #define IEEE80211_AUTH_TIMEOUT (HZ / 5) |
cb236d2d | 35 | #define IEEE80211_AUTH_TIMEOUT_LONG (HZ / 2) |
1672c0e3 | 36 | #define IEEE80211_AUTH_TIMEOUT_SHORT (HZ / 10) |
407879b6 | 37 | #define IEEE80211_AUTH_TIMEOUT_SAE (HZ * 2) |
1672c0e3 JB |
38 | #define IEEE80211_AUTH_MAX_TRIES 3 |
39 | #define IEEE80211_AUTH_WAIT_ASSOC (HZ * 5) | |
94d9864c | 40 | #define IEEE80211_AUTH_WAIT_SAE_RETRY (HZ * 2) |
1672c0e3 | 41 | #define IEEE80211_ASSOC_TIMEOUT (HZ / 5) |
cb236d2d | 42 | #define IEEE80211_ASSOC_TIMEOUT_LONG (HZ / 2) |
1672c0e3 JB |
43 | #define IEEE80211_ASSOC_TIMEOUT_SHORT (HZ / 10) |
44 | #define IEEE80211_ASSOC_MAX_TRIES 3 | |
66e67e41 | 45 | |
180205bd BG |
46 | static int max_nullfunc_tries = 2; |
47 | module_param(max_nullfunc_tries, int, 0644); | |
48 | MODULE_PARM_DESC(max_nullfunc_tries, | |
49 | "Maximum nullfunc tx tries before disconnecting (reason 4)."); | |
50 | ||
51 | static int max_probe_tries = 5; | |
52 | module_param(max_probe_tries, int, 0644); | |
53 | MODULE_PARM_DESC(max_probe_tries, | |
54 | "Maximum probe tries before disconnecting (reason 4)."); | |
b291ba11 JB |
55 | |
56 | /* | |
7ccc8bd7 FF |
57 | * Beacon loss timeout is calculated as N frames times the |
58 | * advertised beacon interval. This may need to be somewhat | |
59 | * higher than what hardware might detect to account for | |
60 | * delays in the host processing frames. But since we also | |
61 | * probe on beacon miss before declaring the connection lost | |
62 | * default to what we want. | |
b291ba11 | 63 | */ |
59c1ec2b BG |
64 | static int beacon_loss_count = 7; |
65 | module_param(beacon_loss_count, int, 0644); | |
66 | MODULE_PARM_DESC(beacon_loss_count, | |
67 | "Number of beacon intervals before we decide beacon was lost."); | |
7ccc8bd7 | 68 | |
b291ba11 JB |
69 | /* |
70 | * Time the connection can be idle before we probe | |
71 | * it to see if we can still talk to the AP. | |
72 | */ | |
d1c5091f | 73 | #define IEEE80211_CONNECTION_IDLE_TIME (30 * HZ) |
b291ba11 JB |
74 | /* |
75 | * Time we wait for a probe response after sending | |
76 | * a probe request because of beacon loss or for | |
77 | * checking the connection still works. | |
78 | */ | |
180205bd BG |
79 | static int probe_wait_ms = 500; |
80 | module_param(probe_wait_ms, int, 0644); | |
81 | MODULE_PARM_DESC(probe_wait_ms, | |
82 | "Maximum time(ms) to wait for probe response" | |
83 | " before disconnecting (reason 4)."); | |
f0706e82 | 84 | |
391a200a JM |
85 | /* |
86 | * How many Beacon frames need to have been used in average signal strength | |
87 | * before starting to indicate signal change events. | |
88 | */ | |
89 | #define IEEE80211_SIGNAL_AVE_MIN_COUNT 4 | |
90 | ||
ca386f31 JB |
91 | /* |
92 | * We can have multiple work items (and connection probing) | |
93 | * scheduling this timer, but we need to take care to only | |
94 | * reschedule it when it should fire _earlier_ than it was | |
95 | * asked for before, or if it's not pending right now. This | |
96 | * function ensures that. Note that it then is required to | |
97 | * run this function for all timeouts after the first one | |
98 | * has happened -- the work that runs from this timer will | |
99 | * do that. | |
100 | */ | |
8d61ffa5 JB |
101 | static void run_again(struct ieee80211_sub_if_data *sdata, |
102 | unsigned long timeout) | |
ca386f31 | 103 | { |
8d61ffa5 | 104 | sdata_assert_lock(sdata); |
ca386f31 | 105 | |
8d61ffa5 JB |
106 | if (!timer_pending(&sdata->u.mgd.timer) || |
107 | time_before(timeout, sdata->u.mgd.timer.expires)) | |
108 | mod_timer(&sdata->u.mgd.timer, timeout); | |
ca386f31 JB |
109 | } |
110 | ||
d3a910a8 | 111 | void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata) |
b291ba11 | 112 | { |
c1288b12 | 113 | if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) |
b291ba11 JB |
114 | return; |
115 | ||
30686bf7 | 116 | if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) |
7eeff74c JB |
117 | return; |
118 | ||
b291ba11 | 119 | mod_timer(&sdata->u.mgd.bcn_mon_timer, |
7ccc8bd7 | 120 | round_jiffies_up(jiffies + sdata->u.mgd.beacon_timeout)); |
b291ba11 JB |
121 | } |
122 | ||
be099e82 LR |
123 | void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata) |
124 | { | |
0c699c3a LR |
125 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
126 | ||
b100e5d6 | 127 | if (unlikely(!ifmgd->associated)) |
8628172f SG |
128 | return; |
129 | ||
b100e5d6 JB |
130 | if (ifmgd->probe_send_count) |
131 | ifmgd->probe_send_count = 0; | |
448cd2e2 | 132 | |
30686bf7 | 133 | if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) |
be099e82 LR |
134 | return; |
135 | ||
b100e5d6 | 136 | mod_timer(&ifmgd->conn_mon_timer, |
be099e82 LR |
137 | round_jiffies_up(jiffies + IEEE80211_CONNECTION_IDLE_TIME)); |
138 | } | |
139 | ||
5484e237 | 140 | static int ecw2cw(int ecw) |
60f8b39c | 141 | { |
5484e237 | 142 | return (1 << ecw) - 1; |
60f8b39c JB |
143 | } |
144 | ||
6565ec9b JB |
145 | static u32 |
146 | ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, | |
147 | struct ieee80211_supported_band *sband, | |
148 | struct ieee80211_channel *channel, | |
2a333a0d | 149 | u32 vht_cap_info, |
6565ec9b JB |
150 | const struct ieee80211_ht_operation *ht_oper, |
151 | const struct ieee80211_vht_operation *vht_oper, | |
41cbb0f5 | 152 | const struct ieee80211_he_operation *he_oper, |
5dca295d | 153 | const struct ieee80211_eht_operation *eht_oper, |
1d00ce80 | 154 | const struct ieee80211_s1g_oper_ie *s1g_oper, |
5cdaed1e | 155 | struct cfg80211_chan_def *chandef, bool tracking) |
6565ec9b | 156 | { |
5cdaed1e | 157 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
6565ec9b | 158 | struct cfg80211_chan_def vht_chandef; |
179b8fc7 | 159 | struct ieee80211_sta_ht_cap sta_ht_cap; |
6565ec9b JB |
160 | u32 ht_cfreq, ret; |
161 | ||
2a38075c | 162 | memset(chandef, 0, sizeof(struct cfg80211_chan_def)); |
6565ec9b JB |
163 | chandef->chan = channel; |
164 | chandef->width = NL80211_CHAN_WIDTH_20_NOHT; | |
165 | chandef->center_freq1 = channel->center_freq; | |
b6011960 | 166 | chandef->freq1_offset = channel->freq_offset; |
6565ec9b | 167 | |
57fa5e85 | 168 | if (channel->band == NL80211_BAND_6GHZ) { |
5dca295d IP |
169 | if (!ieee80211_chandef_he_6ghz_oper(sdata, he_oper, eht_oper, |
170 | chandef)) { | |
636ccdae | 171 | mlme_dbg(sdata, |
5dca295d | 172 | "bad 6 GHz operation, disabling HT/VHT/HE/EHT\n"); |
57fa5e85 JB |
173 | ret = IEEE80211_STA_DISABLE_HT | |
174 | IEEE80211_STA_DISABLE_VHT | | |
5dca295d IP |
175 | IEEE80211_STA_DISABLE_HE | |
176 | IEEE80211_STA_DISABLE_EHT; | |
636ccdae | 177 | } else { |
523f3ec0 | 178 | ret = 0; |
636ccdae | 179 | } |
57fa5e85 JB |
180 | vht_chandef = *chandef; |
181 | goto out; | |
75f87eae TP |
182 | } else if (sband->band == NL80211_BAND_S1GHZ) { |
183 | if (!ieee80211_chandef_s1g_oper(s1g_oper, chandef)) { | |
184 | sdata_info(sdata, | |
185 | "Missing S1G Operation Element? Trying operating == primary\n"); | |
186 | chandef->width = ieee80211_s1g_channel_width(channel); | |
187 | } | |
57fa5e85 | 188 | |
1d00ce80 TP |
189 | ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_40MHZ | |
190 | IEEE80211_STA_DISABLE_VHT | | |
191 | IEEE80211_STA_DISABLE_80P80MHZ | | |
192 | IEEE80211_STA_DISABLE_160MHZ; | |
193 | goto out; | |
194 | } | |
195 | ||
75f87eae TP |
196 | memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap)); |
197 | ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap); | |
198 | ||
b1b1ae2c | 199 | if (!ht_oper || !sta_ht_cap.ht_supported) { |
636ccdae | 200 | mlme_dbg(sdata, "HT operation missing / HT not supported\n"); |
75e296e9 JB |
201 | ret = IEEE80211_STA_DISABLE_HT | |
202 | IEEE80211_STA_DISABLE_VHT | | |
5dca295d IP |
203 | IEEE80211_STA_DISABLE_HE | |
204 | IEEE80211_STA_DISABLE_EHT; | |
6565ec9b JB |
205 | goto out; |
206 | } | |
207 | ||
208 | chandef->width = NL80211_CHAN_WIDTH_20; | |
209 | ||
210 | ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan, | |
211 | channel->band); | |
212 | /* check that channel matches the right operating channel */ | |
5cdaed1e | 213 | if (!tracking && channel->center_freq != ht_cfreq) { |
6565ec9b JB |
214 | /* |
215 | * It's possible that some APs are confused here; | |
216 | * Netgear WNDR3700 sometimes reports 4 higher than | |
217 | * the actual channel in association responses, but | |
218 | * since we look at probe response/beacon data here | |
219 | * it should be OK. | |
220 | */ | |
5cdaed1e JB |
221 | sdata_info(sdata, |
222 | "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n", | |
223 | channel->center_freq, ht_cfreq, | |
224 | ht_oper->primary_chan, channel->band); | |
75e296e9 JB |
225 | ret = IEEE80211_STA_DISABLE_HT | |
226 | IEEE80211_STA_DISABLE_VHT | | |
5dca295d IP |
227 | IEEE80211_STA_DISABLE_HE | |
228 | IEEE80211_STA_DISABLE_EHT; | |
6565ec9b JB |
229 | goto out; |
230 | } | |
231 | ||
232 | /* check 40 MHz support, if we have it */ | |
179b8fc7 | 233 | if (sta_ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) { |
8ac3c704 | 234 | ieee80211_chandef_ht_oper(ht_oper, chandef); |
6565ec9b | 235 | } else { |
636ccdae | 236 | mlme_dbg(sdata, "40 MHz not supported\n"); |
6565ec9b JB |
237 | /* 40 MHz (and 80 MHz) must be supported for VHT */ |
238 | ret = IEEE80211_STA_DISABLE_VHT; | |
85220d71 JB |
239 | /* also mark 40 MHz disabled */ |
240 | ret |= IEEE80211_STA_DISABLE_40MHZ; | |
6565ec9b JB |
241 | goto out; |
242 | } | |
243 | ||
244 | if (!vht_oper || !sband->vht_cap.vht_supported) { | |
636ccdae | 245 | mlme_dbg(sdata, "VHT operation missing / VHT not supported\n"); |
6565ec9b JB |
246 | ret = IEEE80211_STA_DISABLE_VHT; |
247 | goto out; | |
248 | } | |
249 | ||
8ac3c704 | 250 | vht_chandef = *chandef; |
41cbb0f5 LC |
251 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE) && he_oper && |
252 | (le32_to_cpu(he_oper->he_oper_params) & | |
253 | IEEE80211_HE_OPERATION_VHT_OPER_INFO)) { | |
254 | struct ieee80211_vht_operation he_oper_vht_cap; | |
255 | ||
256 | /* | |
257 | * Set only first 3 bytes (other 2 aren't used in | |
258 | * ieee80211_chandef_vht_oper() anyway) | |
259 | */ | |
260 | memcpy(&he_oper_vht_cap, he_oper->optional, 3); | |
261 | he_oper_vht_cap.basic_mcs_set = cpu_to_le16(0); | |
262 | ||
2a333a0d | 263 | if (!ieee80211_chandef_vht_oper(&sdata->local->hw, vht_cap_info, |
7eb26df2 | 264 | &he_oper_vht_cap, ht_oper, |
41cbb0f5 LC |
265 | &vht_chandef)) { |
266 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) | |
267 | sdata_info(sdata, | |
636ccdae | 268 | "HE AP VHT information is invalid, disabling HE\n"); |
5dca295d | 269 | ret = IEEE80211_STA_DISABLE_HE | IEEE80211_STA_DISABLE_EHT; |
41cbb0f5 LC |
270 | goto out; |
271 | } | |
2a333a0d JB |
272 | } else if (!ieee80211_chandef_vht_oper(&sdata->local->hw, |
273 | vht_cap_info, | |
274 | vht_oper, ht_oper, | |
275 | &vht_chandef)) { | |
5cdaed1e | 276 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) |
30eb1dc2 | 277 | sdata_info(sdata, |
636ccdae | 278 | "AP VHT information is invalid, disabling VHT\n"); |
6565ec9b JB |
279 | ret = IEEE80211_STA_DISABLE_VHT; |
280 | goto out; | |
281 | } | |
282 | ||
283 | if (!cfg80211_chandef_valid(&vht_chandef)) { | |
5cdaed1e | 284 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) |
30eb1dc2 | 285 | sdata_info(sdata, |
636ccdae | 286 | "AP VHT information is invalid, disabling VHT\n"); |
6565ec9b JB |
287 | ret = IEEE80211_STA_DISABLE_VHT; |
288 | goto out; | |
289 | } | |
290 | ||
291 | if (cfg80211_chandef_identical(chandef, &vht_chandef)) { | |
292 | ret = 0; | |
293 | goto out; | |
294 | } | |
295 | ||
296 | if (!cfg80211_chandef_compatible(chandef, &vht_chandef)) { | |
5cdaed1e | 297 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) |
30eb1dc2 | 298 | sdata_info(sdata, |
636ccdae | 299 | "AP VHT information doesn't match HT, disabling VHT\n"); |
6565ec9b JB |
300 | ret = IEEE80211_STA_DISABLE_VHT; |
301 | goto out; | |
302 | } | |
303 | ||
304 | *chandef = vht_chandef; | |
305 | ||
306 | ret = 0; | |
307 | ||
308 | out: | |
963a1852 JB |
309 | /* |
310 | * When tracking the current AP, don't do any further checks if the | |
311 | * new chandef is identical to the one we're currently using for the | |
312 | * connection. This keeps us from playing ping-pong with regulatory, | |
313 | * without it the following can happen (for example): | |
314 | * - connect to an AP with 80 MHz, world regdom allows 80 MHz | |
315 | * - AP advertises regdom US | |
316 | * - CRDA loads regdom US with 80 MHz prohibited (old database) | |
317 | * - the code below detects an unsupported channel, downgrades, and | |
318 | * we disconnect from the AP in the caller | |
319 | * - disconnect causes CRDA to reload world regdomain and the game | |
320 | * starts anew. | |
321 | * (see https://bugzilla.kernel.org/show_bug.cgi?id=70881) | |
322 | * | |
323 | * It seems possible that there are still scenarios with CSA or real | |
324 | * bandwidth changes where a this could happen, but those cases are | |
325 | * less common and wouldn't completely prevent using the AP. | |
326 | */ | |
327 | if (tracking && | |
328 | cfg80211_chandef_identical(chandef, &sdata->vif.bss_conf.chandef)) | |
329 | return ret; | |
330 | ||
586e01ed JB |
331 | /* don't print the message below for VHT mismatch if VHT is disabled */ |
332 | if (ret & IEEE80211_STA_DISABLE_VHT) | |
333 | vht_chandef = *chandef; | |
334 | ||
ddfe49b4 JB |
335 | /* |
336 | * Ignore the DISABLED flag when we're already connected and only | |
337 | * tracking the APs beacon for bandwidth changes - otherwise we | |
338 | * might get disconnected here if we connect to an AP, update our | |
339 | * regulatory information based on the AP's country IE and the | |
340 | * information we have is wrong/outdated and disables the channel | |
341 | * that we're actually using for the connection to the AP. | |
342 | */ | |
6565ec9b | 343 | while (!cfg80211_chandef_usable(sdata->local->hw.wiphy, chandef, |
ddfe49b4 JB |
344 | tracking ? 0 : |
345 | IEEE80211_CHAN_DISABLED)) { | |
6565ec9b JB |
346 | if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) { |
347 | ret = IEEE80211_STA_DISABLE_HT | | |
75e296e9 | 348 | IEEE80211_STA_DISABLE_VHT | |
5dca295d IP |
349 | IEEE80211_STA_DISABLE_HE | |
350 | IEEE80211_STA_DISABLE_EHT; | |
b56e4b85 | 351 | break; |
6565ec9b JB |
352 | } |
353 | ||
e6b7cde4 | 354 | ret |= ieee80211_chandef_downgrade(chandef); |
6565ec9b JB |
355 | } |
356 | ||
8cadb207 DG |
357 | if (!he_oper || !cfg80211_chandef_usable(sdata->wdev.wiphy, chandef, |
358 | IEEE80211_CHAN_NO_HE)) | |
5dca295d IP |
359 | ret |= IEEE80211_STA_DISABLE_HE | IEEE80211_STA_DISABLE_EHT; |
360 | ||
361 | if (!eht_oper || !cfg80211_chandef_usable(sdata->wdev.wiphy, chandef, | |
362 | IEEE80211_CHAN_NO_EHT)) | |
363 | ret |= IEEE80211_STA_DISABLE_EHT; | |
b5db1aca | 364 | |
5cdaed1e | 365 | if (chandef->width != vht_chandef.width && !tracking) |
6565ec9b JB |
366 | sdata_info(sdata, |
367 | "capabilities/regulatory prevented using AP HT/VHT configuration, downgraded\n"); | |
368 | ||
369 | WARN_ON_ONCE(!cfg80211_chandef_valid(chandef)); | |
370 | return ret; | |
371 | } | |
372 | ||
30eb1dc2 JB |
373 | static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata, |
374 | struct sta_info *sta, | |
53b954ee | 375 | const struct ieee80211_ht_cap *ht_cap, |
2a333a0d | 376 | const struct ieee80211_vht_cap *vht_cap, |
30eb1dc2 JB |
377 | const struct ieee80211_ht_operation *ht_oper, |
378 | const struct ieee80211_vht_operation *vht_oper, | |
41cbb0f5 | 379 | const struct ieee80211_he_operation *he_oper, |
5dca295d | 380 | const struct ieee80211_eht_operation *eht_oper, |
1d00ce80 | 381 | const struct ieee80211_s1g_oper_ie *s1g_oper, |
30eb1dc2 | 382 | const u8 *bssid, u32 *changed) |
d5522e03 JB |
383 | { |
384 | struct ieee80211_local *local = sdata->local; | |
30eb1dc2 | 385 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
41cbb0f5 LC |
386 | struct ieee80211_channel *chan = sdata->vif.bss_conf.chandef.chan; |
387 | struct ieee80211_supported_band *sband = | |
388 | local->hw.wiphy->bands[chan->band]; | |
30eb1dc2 | 389 | struct cfg80211_chan_def chandef; |
9ed6bcce | 390 | u16 ht_opmode; |
30eb1dc2 | 391 | u32 flags; |
2a333a0d | 392 | u32 vht_cap_info = 0; |
30eb1dc2 | 393 | int ret; |
d5522e03 | 394 | |
30eb1dc2 JB |
395 | /* if HT was/is disabled, don't track any bandwidth changes */ |
396 | if (ifmgd->flags & IEEE80211_STA_DISABLE_HT || !ht_oper) | |
1128958d JB |
397 | return 0; |
398 | ||
30eb1dc2 JB |
399 | /* don't check VHT if we associated as non-VHT station */ |
400 | if (ifmgd->flags & IEEE80211_STA_DISABLE_VHT) | |
401 | vht_oper = NULL; | |
402 | ||
41cbb0f5 LC |
403 | /* don't check HE if we associated as non-HE station */ |
404 | if (ifmgd->flags & IEEE80211_STA_DISABLE_HE || | |
bac2fd3d | 405 | !ieee80211_get_he_iftype_cap(sband, |
5dca295d | 406 | ieee80211_vif_type_p2p(&sdata->vif))) { |
41cbb0f5 | 407 | he_oper = NULL; |
5dca295d IP |
408 | eht_oper = NULL; |
409 | } | |
410 | ||
411 | /* don't check EHT if we associated as non-EHT station */ | |
412 | if (ifmgd->flags & IEEE80211_STA_DISABLE_EHT || | |
413 | !ieee80211_get_eht_iftype_cap(sband, | |
414 | ieee80211_vif_type_p2p(&sdata->vif))) | |
415 | eht_oper = NULL; | |
41cbb0f5 | 416 | |
30eb1dc2 JB |
417 | if (WARN_ON_ONCE(!sta)) |
418 | return -EINVAL; | |
419 | ||
017b45bb AA |
420 | /* |
421 | * if bss configuration changed store the new one - | |
422 | * this may be applicable even if channel is identical | |
423 | */ | |
424 | ht_opmode = le16_to_cpu(ht_oper->operation_mode); | |
425 | if (sdata->vif.bss_conf.ht_operation_mode != ht_opmode) { | |
426 | *changed |= BSS_CHANGED_HT; | |
427 | sdata->vif.bss_conf.ht_operation_mode = ht_opmode; | |
428 | } | |
429 | ||
2a333a0d JB |
430 | if (vht_cap) |
431 | vht_cap_info = le32_to_cpu(vht_cap->vht_cap_info); | |
432 | ||
41cbb0f5 | 433 | /* calculate new channel (type) based on HT/VHT/HE operation IEs */ |
2a333a0d | 434 | flags = ieee80211_determine_chantype(sdata, sband, chan, vht_cap_info, |
5dca295d IP |
435 | ht_oper, vht_oper, |
436 | he_oper, eht_oper, | |
1d00ce80 | 437 | s1g_oper, &chandef, true); |
30eb1dc2 JB |
438 | |
439 | /* | |
440 | * Downgrade the new channel if we associated with restricted | |
441 | * capabilities. For example, if we associated as a 20 MHz STA | |
442 | * to a 40 MHz AP (due to regulatory, capabilities or config | |
443 | * reasons) then switching to a 40 MHz channel now won't do us | |
444 | * any good -- we couldn't use it with the AP. | |
445 | */ | |
446 | if (ifmgd->flags & IEEE80211_STA_DISABLE_80P80MHZ && | |
447 | chandef.width == NL80211_CHAN_WIDTH_80P80) | |
e6b7cde4 | 448 | flags |= ieee80211_chandef_downgrade(&chandef); |
30eb1dc2 JB |
449 | if (ifmgd->flags & IEEE80211_STA_DISABLE_160MHZ && |
450 | chandef.width == NL80211_CHAN_WIDTH_160) | |
e6b7cde4 | 451 | flags |= ieee80211_chandef_downgrade(&chandef); |
30eb1dc2 JB |
452 | if (ifmgd->flags & IEEE80211_STA_DISABLE_40MHZ && |
453 | chandef.width > NL80211_CHAN_WIDTH_20) | |
e6b7cde4 | 454 | flags |= ieee80211_chandef_downgrade(&chandef); |
30eb1dc2 JB |
455 | |
456 | if (cfg80211_chandef_identical(&chandef, &sdata->vif.bss_conf.chandef)) | |
457 | return 0; | |
458 | ||
459 | sdata_info(sdata, | |
b6011960 TP |
460 | "AP %pM changed bandwidth, new config is %d.%03d MHz, " |
461 | "width %d (%d.%03d/%d MHz)\n", | |
462 | ifmgd->bssid, chandef.chan->center_freq, | |
463 | chandef.chan->freq_offset, chandef.width, | |
464 | chandef.center_freq1, chandef.freq1_offset, | |
465 | chandef.center_freq2); | |
30eb1dc2 JB |
466 | |
467 | if (flags != (ifmgd->flags & (IEEE80211_STA_DISABLE_HT | | |
468 | IEEE80211_STA_DISABLE_VHT | | |
75e296e9 | 469 | IEEE80211_STA_DISABLE_HE | |
5dca295d | 470 | IEEE80211_STA_DISABLE_EHT | |
30eb1dc2 JB |
471 | IEEE80211_STA_DISABLE_40MHZ | |
472 | IEEE80211_STA_DISABLE_80P80MHZ | | |
5dca295d IP |
473 | IEEE80211_STA_DISABLE_160MHZ | |
474 | IEEE80211_STA_DISABLE_320MHZ)) || | |
30eb1dc2 JB |
475 | !cfg80211_chandef_valid(&chandef)) { |
476 | sdata_info(sdata, | |
6516ee22 JB |
477 | "AP %pM changed caps/bw in a way we can't support (0x%x/0x%x) - disconnect\n", |
478 | ifmgd->bssid, flags, ifmgd->flags); | |
30eb1dc2 JB |
479 | return -EINVAL; |
480 | } | |
481 | ||
30eb1dc2 | 482 | ret = ieee80211_vif_change_bandwidth(sdata, &chandef, changed); |
d6c37509 | 483 | |
30eb1dc2 JB |
484 | if (ret) { |
485 | sdata_info(sdata, | |
486 | "AP %pM changed bandwidth to incompatible one - disconnect\n", | |
487 | ifmgd->bssid); | |
488 | return ret; | |
489 | } | |
7cc44ed4 | 490 | |
30eb1dc2 | 491 | return 0; |
d5522e03 JB |
492 | } |
493 | ||
9c6bd790 JB |
494 | /* frame sending functions */ |
495 | ||
66e67e41 | 496 | static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, |
9dde6423 | 497 | struct sk_buff *skb, u8 ap_ht_param, |
66e67e41 JB |
498 | struct ieee80211_supported_band *sband, |
499 | struct ieee80211_channel *channel, | |
500 | enum ieee80211_smps_mode smps) | |
501 | { | |
66e67e41 JB |
502 | u8 *pos; |
503 | u32 flags = channel->flags; | |
504 | u16 cap; | |
505 | struct ieee80211_sta_ht_cap ht_cap; | |
506 | ||
507 | BUILD_BUG_ON(sizeof(ht_cap) != sizeof(sband->ht_cap)); | |
508 | ||
66e67e41 JB |
509 | memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap)); |
510 | ieee80211_apply_htcap_overrides(sdata, &ht_cap); | |
511 | ||
66e67e41 JB |
512 | /* determine capability flags */ |
513 | cap = ht_cap.cap; | |
514 | ||
9dde6423 | 515 | switch (ap_ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { |
66e67e41 JB |
516 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
517 | if (flags & IEEE80211_CHAN_NO_HT40PLUS) { | |
518 | cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; | |
519 | cap &= ~IEEE80211_HT_CAP_SGI_40; | |
520 | } | |
521 | break; | |
522 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: | |
523 | if (flags & IEEE80211_CHAN_NO_HT40MINUS) { | |
524 | cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; | |
525 | cap &= ~IEEE80211_HT_CAP_SGI_40; | |
526 | } | |
527 | break; | |
528 | } | |
529 | ||
24398e39 JB |
530 | /* |
531 | * If 40 MHz was disabled associate as though we weren't | |
532 | * capable of 40 MHz -- some broken APs will never fall | |
533 | * back to trying to transmit in 20 MHz. | |
534 | */ | |
535 | if (sdata->u.mgd.flags & IEEE80211_STA_DISABLE_40MHZ) { | |
536 | cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; | |
537 | cap &= ~IEEE80211_HT_CAP_SGI_40; | |
538 | } | |
539 | ||
66e67e41 JB |
540 | /* set SM PS mode properly */ |
541 | cap &= ~IEEE80211_HT_CAP_SM_PS; | |
542 | switch (smps) { | |
543 | case IEEE80211_SMPS_AUTOMATIC: | |
544 | case IEEE80211_SMPS_NUM_MODES: | |
545 | WARN_ON(1); | |
fc0561dc | 546 | fallthrough; |
66e67e41 JB |
547 | case IEEE80211_SMPS_OFF: |
548 | cap |= WLAN_HT_CAP_SM_PS_DISABLED << | |
549 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
550 | break; | |
551 | case IEEE80211_SMPS_STATIC: | |
552 | cap |= WLAN_HT_CAP_SM_PS_STATIC << | |
553 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
554 | break; | |
555 | case IEEE80211_SMPS_DYNAMIC: | |
556 | cap |= WLAN_HT_CAP_SM_PS_DYNAMIC << | |
557 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
558 | break; | |
559 | } | |
560 | ||
561 | /* reserve and fill IE */ | |
562 | pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2); | |
563 | ieee80211_ie_build_ht_cap(pos, &ht_cap, cap); | |
564 | } | |
565 | ||
322cd406 SS |
566 | /* This function determines vht capability flags for the association |
567 | * and builds the IE. | |
568 | * Note - the function may set the owner of the MU-MIMO capability | |
569 | */ | |
d545daba MP |
570 | static void ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata, |
571 | struct sk_buff *skb, | |
b08fbbd8 JB |
572 | struct ieee80211_supported_band *sband, |
573 | struct ieee80211_vht_cap *ap_vht_cap) | |
d545daba | 574 | { |
322cd406 | 575 | struct ieee80211_local *local = sdata->local; |
d545daba MP |
576 | u8 *pos; |
577 | u32 cap; | |
578 | struct ieee80211_sta_vht_cap vht_cap; | |
c1cf6d4e | 579 | u32 mask, ap_bf_sts, our_bf_sts; |
d545daba MP |
580 | |
581 | BUILD_BUG_ON(sizeof(vht_cap) != sizeof(sband->vht_cap)); | |
582 | ||
583 | memcpy(&vht_cap, &sband->vht_cap, sizeof(vht_cap)); | |
dd5ecfea | 584 | ieee80211_apply_vhtcap_overrides(sdata, &vht_cap); |
d545daba MP |
585 | |
586 | /* determine capability flags */ | |
587 | cap = vht_cap.cap; | |
588 | ||
f2d9d270 | 589 | if (sdata->u.mgd.flags & IEEE80211_STA_DISABLE_80P80MHZ) { |
575f0530 JB |
590 | u32 bw = cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; |
591 | ||
592 | cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; | |
593 | if (bw == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ || | |
594 | bw == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) | |
595 | cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; | |
f2d9d270 JB |
596 | } |
597 | ||
598 | if (sdata->u.mgd.flags & IEEE80211_STA_DISABLE_160MHZ) { | |
599 | cap &= ~IEEE80211_VHT_CAP_SHORT_GI_160; | |
575f0530 | 600 | cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; |
f2d9d270 JB |
601 | } |
602 | ||
b08fbbd8 JB |
603 | /* |
604 | * Some APs apparently get confused if our capabilities are better | |
605 | * than theirs, so restrict what we advertise in the assoc request. | |
606 | */ | |
607 | if (!(ap_vht_cap->vht_cap_info & | |
608 | cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE))) | |
322cd406 SS |
609 | cap &= ~(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | |
610 | IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); | |
611 | else if (!(ap_vht_cap->vht_cap_info & | |
612 | cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))) | |
613 | cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; | |
614 | ||
615 | /* | |
ab4040df | 616 | * If some other vif is using the MU-MIMO capability we cannot associate |
322cd406 SS |
617 | * using MU-MIMO - this will lead to contradictions in the group-id |
618 | * mechanism. | |
619 | * Ownership is defined since association request, in order to avoid | |
620 | * simultaneous associations with MU-MIMO. | |
621 | */ | |
622 | if (cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE) { | |
623 | bool disable_mu_mimo = false; | |
624 | struct ieee80211_sub_if_data *other; | |
625 | ||
626 | list_for_each_entry_rcu(other, &local->interfaces, list) { | |
b5a33d52 | 627 | if (other->vif.mu_mimo_owner) { |
322cd406 SS |
628 | disable_mu_mimo = true; |
629 | break; | |
630 | } | |
631 | } | |
632 | if (disable_mu_mimo) | |
633 | cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; | |
634 | else | |
b5a33d52 | 635 | sdata->vif.mu_mimo_owner = true; |
322cd406 | 636 | } |
b08fbbd8 | 637 | |
c1cf6d4e ES |
638 | mask = IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK; |
639 | ||
640 | ap_bf_sts = le32_to_cpu(ap_vht_cap->vht_cap_info) & mask; | |
641 | our_bf_sts = cap & mask; | |
642 | ||
643 | if (ap_bf_sts < our_bf_sts) { | |
644 | cap &= ~mask; | |
645 | cap |= ap_bf_sts; | |
646 | } | |
647 | ||
d545daba | 648 | /* reserve and fill IE */ |
d4950281 | 649 | pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2); |
d545daba MP |
650 | ieee80211_ie_build_vht_cap(pos, &vht_cap, cap); |
651 | } | |
652 | ||
41cbb0f5 LC |
653 | /* This function determines HE capability flags for the association |
654 | * and builds the IE. | |
655 | */ | |
656 | static void ieee80211_add_he_ie(struct ieee80211_sub_if_data *sdata, | |
657 | struct sk_buff *skb, | |
658 | struct ieee80211_supported_band *sband) | |
659 | { | |
1f2c1044 | 660 | u8 *pos, *pre_he_pos; |
41cbb0f5 | 661 | const struct ieee80211_sta_he_cap *he_cap = NULL; |
b5db1aca | 662 | struct ieee80211_chanctx_conf *chanctx_conf; |
41cbb0f5 | 663 | u8 he_cap_size; |
b5db1aca HD |
664 | bool reg_cap = false; |
665 | ||
666 | rcu_read_lock(); | |
667 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); | |
668 | if (!WARN_ON_ONCE(!chanctx_conf)) | |
669 | reg_cap = cfg80211_chandef_usable(sdata->wdev.wiphy, | |
670 | &chanctx_conf->def, | |
671 | IEEE80211_CHAN_NO_HE); | |
672 | ||
673 | rcu_read_unlock(); | |
41cbb0f5 | 674 | |
bac2fd3d JB |
675 | he_cap = ieee80211_get_he_iftype_cap(sband, |
676 | ieee80211_vif_type_p2p(&sdata->vif)); | |
1f2c1044 | 677 | if (!he_cap || !chanctx_conf || !reg_cap) |
41cbb0f5 LC |
678 | return; |
679 | ||
1f2c1044 | 680 | /* get a max size estimate */ |
41cbb0f5 LC |
681 | he_cap_size = |
682 | 2 + 1 + sizeof(he_cap->he_cap_elem) + | |
683 | ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem) + | |
684 | ieee80211_he_ppe_size(he_cap->ppe_thres[0], | |
685 | he_cap->he_cap_elem.phy_cap_info); | |
686 | pos = skb_put(skb, he_cap_size); | |
1f2c1044 JB |
687 | pre_he_pos = pos; |
688 | pos = ieee80211_ie_build_he_cap(sdata->u.mgd.flags, | |
689 | pos, he_cap, pos + he_cap_size); | |
690 | /* trim excess if any */ | |
691 | skb_trim(skb, skb->len - (pre_he_pos + he_cap_size - pos)); | |
24a2042c RM |
692 | |
693 | ieee80211_ie_build_he_6ghz_cap(sdata, skb); | |
41cbb0f5 LC |
694 | } |
695 | ||
820acc81 IP |
696 | static void ieee80211_add_eht_ie(struct ieee80211_sub_if_data *sdata, |
697 | struct sk_buff *skb, | |
698 | struct ieee80211_supported_band *sband) | |
699 | { | |
700 | u8 *pos; | |
701 | const struct ieee80211_sta_he_cap *he_cap; | |
702 | const struct ieee80211_sta_eht_cap *eht_cap; | |
703 | struct ieee80211_chanctx_conf *chanctx_conf; | |
704 | u8 eht_cap_size; | |
705 | bool reg_cap = false; | |
706 | ||
707 | rcu_read_lock(); | |
708 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); | |
709 | if (!WARN_ON_ONCE(!chanctx_conf)) | |
710 | reg_cap = cfg80211_chandef_usable(sdata->wdev.wiphy, | |
711 | &chanctx_conf->def, | |
712 | IEEE80211_CHAN_NO_HE | | |
713 | IEEE80211_CHAN_NO_EHT); | |
714 | rcu_read_unlock(); | |
715 | ||
716 | he_cap = ieee80211_get_he_iftype_cap(sband, | |
717 | ieee80211_vif_type_p2p(&sdata->vif)); | |
718 | eht_cap = ieee80211_get_eht_iftype_cap(sband, | |
719 | ieee80211_vif_type_p2p(&sdata->vif)); | |
720 | ||
721 | /* | |
722 | * EHT capabilities element is only added if the HE capabilities element | |
723 | * was added so assume that 'he_cap' is valid and don't check it. | |
724 | */ | |
725 | if (WARN_ON(!he_cap || !eht_cap || !reg_cap)) | |
726 | return; | |
727 | ||
728 | eht_cap_size = | |
729 | 2 + 1 + sizeof(eht_cap->eht_cap_elem) + | |
730 | ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, | |
731 | &eht_cap->eht_cap_elem) + | |
732 | ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], | |
733 | eht_cap->eht_cap_elem.phy_cap_info); | |
734 | pos = skb_put(skb, eht_cap_size); | |
735 | ieee80211_ie_build_eht_cap(pos, he_cap, eht_cap, pos + eht_cap_size); | |
736 | } | |
737 | ||
a72c01a9 | 738 | static int ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) |
66e67e41 JB |
739 | { |
740 | struct ieee80211_local *local = sdata->local; | |
741 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
742 | struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; | |
743 | struct sk_buff *skb; | |
744 | struct ieee80211_mgmt *mgmt; | |
4d9ec73d | 745 | u8 *pos, qos_info, *ie_start; |
66e67e41 | 746 | size_t offset = 0, noffset; |
2103dec1 | 747 | int i, count, rates_len, supp_rates_len, shift; |
66e67e41 JB |
748 | u16 capab; |
749 | struct ieee80211_supported_band *sband; | |
55de908a JB |
750 | struct ieee80211_chanctx_conf *chanctx_conf; |
751 | struct ieee80211_channel *chan; | |
44f6d42c | 752 | u32 rates = 0; |
05d10957 | 753 | __le16 listen_int; |
2ff69b0e | 754 | struct element *ext_capa = NULL; |
9bd6a83e JB |
755 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); |
756 | const struct ieee80211_sband_iftype_data *iftd; | |
15fae341 | 757 | struct ieee80211_prep_tx_info info = {}; |
a72c01a9 | 758 | int ret; |
2ff69b0e JB |
759 | |
760 | /* we know it's writable, cast away the const */ | |
761 | if (assoc_data->ie_len) | |
762 | ext_capa = (void *)cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, | |
763 | assoc_data->ie, | |
764 | assoc_data->ie_len); | |
66e67e41 | 765 | |
8d61ffa5 | 766 | sdata_assert_lock(sdata); |
66e67e41 | 767 | |
55de908a JB |
768 | rcu_read_lock(); |
769 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); | |
770 | if (WARN_ON(!chanctx_conf)) { | |
771 | rcu_read_unlock(); | |
a72c01a9 | 772 | return -EINVAL; |
55de908a | 773 | } |
4bf88530 | 774 | chan = chanctx_conf->def.chan; |
55de908a JB |
775 | rcu_read_unlock(); |
776 | sband = local->hw.wiphy->bands[chan->band]; | |
2103dec1 | 777 | shift = ieee80211_vif_get_shift(&sdata->vif); |
66e67e41 JB |
778 | |
779 | if (assoc_data->supp_rates_len) { | |
780 | /* | |
781 | * Get all rates supported by the device and the AP as | |
782 | * some APs don't like getting a superset of their rates | |
783 | * in the association request (e.g. D-Link DAP 1353 in | |
784 | * b-only mode)... | |
785 | */ | |
2103dec1 SW |
786 | rates_len = ieee80211_parse_bitrates(&chanctx_conf->def, sband, |
787 | assoc_data->supp_rates, | |
788 | assoc_data->supp_rates_len, | |
789 | &rates); | |
66e67e41 JB |
790 | } else { |
791 | /* | |
792 | * In case AP not provide any supported rates information | |
793 | * before association, we send information element(s) with | |
794 | * all rates that we support. | |
795 | */ | |
2103dec1 SW |
796 | rates_len = 0; |
797 | for (i = 0; i < sband->n_bitrates; i++) { | |
2103dec1 SW |
798 | rates |= BIT(i); |
799 | rates_len++; | |
800 | } | |
66e67e41 JB |
801 | } |
802 | ||
9bd6a83e JB |
803 | iftd = ieee80211_get_sband_iftype_data(sband, iftype); |
804 | ||
66e67e41 JB |
805 | skb = alloc_skb(local->hw.extra_tx_headroom + |
806 | sizeof(*mgmt) + /* bit too much but doesn't matter */ | |
807 | 2 + assoc_data->ssid_len + /* SSID */ | |
808 | 4 + rates_len + /* (extended) rates */ | |
809 | 4 + /* power capability */ | |
810 | 2 + 2 * sband->n_channels + /* supported channels */ | |
811 | 2 + sizeof(struct ieee80211_ht_cap) + /* HT */ | |
d4950281 | 812 | 2 + sizeof(struct ieee80211_vht_cap) + /* VHT */ |
41cbb0f5 LC |
813 | 2 + 1 + sizeof(struct ieee80211_he_cap_elem) + /* HE */ |
814 | sizeof(struct ieee80211_he_mcs_nss_supp) + | |
815 | IEEE80211_HE_PPE_THRES_MAX_LEN + | |
24a2042c | 816 | 2 + 1 + sizeof(struct ieee80211_he_6ghz_capa) + |
66e67e41 | 817 | assoc_data->ie_len + /* extra IEs */ |
39404fee | 818 | (assoc_data->fils_kek_len ? 16 /* AES-SIV */ : 0) + |
9bd6a83e JB |
819 | 9 + /* WMM */ |
820 | (iftd ? iftd->vendor_elems.len : 0), | |
66e67e41 JB |
821 | GFP_KERNEL); |
822 | if (!skb) | |
a72c01a9 | 823 | return -ENOMEM; |
66e67e41 JB |
824 | |
825 | skb_reserve(skb, local->hw.extra_tx_headroom); | |
826 | ||
827 | capab = WLAN_CAPABILITY_ESS; | |
828 | ||
57fbcce3 | 829 | if (sband->band == NL80211_BAND_2GHZ) { |
ea1b2b45 JB |
830 | capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; |
831 | capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; | |
66e67e41 JB |
832 | } |
833 | ||
834 | if (assoc_data->capability & WLAN_CAPABILITY_PRIVACY) | |
835 | capab |= WLAN_CAPABILITY_PRIVACY; | |
836 | ||
837 | if ((assoc_data->capability & WLAN_CAPABILITY_SPECTRUM_MGMT) && | |
30686bf7 | 838 | ieee80211_hw_check(&local->hw, SPECTRUM_MGMT)) |
66e67e41 JB |
839 | capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; |
840 | ||
cd2f5dd7 AK |
841 | if (ifmgd->flags & IEEE80211_STA_ENABLE_RRM) |
842 | capab |= WLAN_CAPABILITY_RADIO_MEASURE; | |
843 | ||
b080db58 | 844 | mgmt = skb_put_zero(skb, 24); |
66e67e41 JB |
845 | memcpy(mgmt->da, assoc_data->bss->bssid, ETH_ALEN); |
846 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); | |
847 | memcpy(mgmt->bssid, assoc_data->bss->bssid, ETH_ALEN); | |
848 | ||
05d10957 TP |
849 | listen_int = cpu_to_le16(sband->band == NL80211_BAND_S1GHZ ? |
850 | ieee80211_encode_usf(local->hw.conf.listen_interval) : | |
851 | local->hw.conf.listen_interval); | |
66e67e41 JB |
852 | if (!is_zero_ether_addr(assoc_data->prev_bssid)) { |
853 | skb_put(skb, 10); | |
854 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
855 | IEEE80211_STYPE_REASSOC_REQ); | |
856 | mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab); | |
05d10957 | 857 | mgmt->u.reassoc_req.listen_interval = listen_int; |
66e67e41 JB |
858 | memcpy(mgmt->u.reassoc_req.current_ap, assoc_data->prev_bssid, |
859 | ETH_ALEN); | |
15fae341 | 860 | info.subtype = IEEE80211_STYPE_REASSOC_REQ; |
66e67e41 JB |
861 | } else { |
862 | skb_put(skb, 4); | |
863 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
864 | IEEE80211_STYPE_ASSOC_REQ); | |
865 | mgmt->u.assoc_req.capab_info = cpu_to_le16(capab); | |
05d10957 | 866 | mgmt->u.assoc_req.listen_interval = listen_int; |
15fae341 | 867 | info.subtype = IEEE80211_STYPE_ASSOC_REQ; |
66e67e41 JB |
868 | } |
869 | ||
870 | /* SSID */ | |
871 | pos = skb_put(skb, 2 + assoc_data->ssid_len); | |
4d9ec73d | 872 | ie_start = pos; |
66e67e41 JB |
873 | *pos++ = WLAN_EID_SSID; |
874 | *pos++ = assoc_data->ssid_len; | |
875 | memcpy(pos, assoc_data->ssid, assoc_data->ssid_len); | |
876 | ||
1d00ce80 TP |
877 | if (sband->band == NL80211_BAND_S1GHZ) |
878 | goto skip_rates; | |
879 | ||
66e67e41 JB |
880 | /* add all rates which were marked to be used above */ |
881 | supp_rates_len = rates_len; | |
882 | if (supp_rates_len > 8) | |
883 | supp_rates_len = 8; | |
884 | ||
885 | pos = skb_put(skb, supp_rates_len + 2); | |
886 | *pos++ = WLAN_EID_SUPP_RATES; | |
887 | *pos++ = supp_rates_len; | |
888 | ||
889 | count = 0; | |
890 | for (i = 0; i < sband->n_bitrates; i++) { | |
891 | if (BIT(i) & rates) { | |
2103dec1 SW |
892 | int rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, |
893 | 5 * (1 << shift)); | |
894 | *pos++ = (u8) rate; | |
66e67e41 JB |
895 | if (++count == 8) |
896 | break; | |
897 | } | |
898 | } | |
899 | ||
900 | if (rates_len > count) { | |
901 | pos = skb_put(skb, rates_len - count + 2); | |
902 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
903 | *pos++ = rates_len - count; | |
904 | ||
905 | for (i++; i < sband->n_bitrates; i++) { | |
906 | if (BIT(i) & rates) { | |
2103dec1 SW |
907 | int rate; |
908 | rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, | |
909 | 5 * (1 << shift)); | |
910 | *pos++ = (u8) rate; | |
66e67e41 JB |
911 | } |
912 | } | |
913 | } | |
914 | ||
1d00ce80 | 915 | skip_rates: |
cd2f5dd7 AK |
916 | if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT || |
917 | capab & WLAN_CAPABILITY_RADIO_MEASURE) { | |
66e67e41 JB |
918 | pos = skb_put(skb, 4); |
919 | *pos++ = WLAN_EID_PWR_CAPABILITY; | |
920 | *pos++ = 2; | |
921 | *pos++ = 0; /* min tx power */ | |
0430c883 SW |
922 | /* max tx power */ |
923 | *pos++ = ieee80211_chandef_max_power(&chanctx_conf->def); | |
cd2f5dd7 | 924 | } |
66e67e41 | 925 | |
2ff69b0e JB |
926 | /* |
927 | * Per spec, we shouldn't include the list of channels if we advertise | |
928 | * support for extended channel switching, but we've always done that; | |
929 | * (for now?) apply this restriction only on the (new) 6 GHz band. | |
930 | */ | |
931 | if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT && | |
932 | (sband->band != NL80211_BAND_6GHZ || | |
933 | !ext_capa || ext_capa->datalen < 1 || | |
934 | !(ext_capa->data[0] & WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING))) { | |
66e67e41 JB |
935 | /* TODO: get this in reg domain format */ |
936 | pos = skb_put(skb, 2 * sband->n_channels + 2); | |
937 | *pos++ = WLAN_EID_SUPPORTED_CHANNELS; | |
938 | *pos++ = 2 * sband->n_channels; | |
939 | for (i = 0; i < sband->n_channels; i++) { | |
940 | *pos++ = ieee80211_frequency_to_channel( | |
941 | sband->channels[i].center_freq); | |
942 | *pos++ = 1; /* one channel in the subband*/ | |
943 | } | |
944 | } | |
945 | ||
caf56338 SS |
946 | /* Set MBSSID support for HE AP if needed */ |
947 | if (ieee80211_hw_check(&local->hw, SUPPORTS_ONLY_HE_MULTI_BSSID) && | |
2ff69b0e JB |
948 | !(ifmgd->flags & IEEE80211_STA_DISABLE_HE) && assoc_data->ie_len && |
949 | ext_capa && ext_capa->datalen >= 3) | |
950 | ext_capa->data[2] |= WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT; | |
caf56338 | 951 | |
66e67e41 | 952 | /* if present, add any custom IEs that go before HT */ |
b3f51e94 | 953 | if (assoc_data->ie_len) { |
66e67e41 JB |
954 | static const u8 before_ht[] = { |
955 | WLAN_EID_SSID, | |
956 | WLAN_EID_SUPP_RATES, | |
957 | WLAN_EID_EXT_SUPP_RATES, | |
958 | WLAN_EID_PWR_CAPABILITY, | |
959 | WLAN_EID_SUPPORTED_CHANNELS, | |
960 | WLAN_EID_RSN, | |
961 | WLAN_EID_QOS_CAPA, | |
962 | WLAN_EID_RRM_ENABLED_CAPABILITIES, | |
963 | WLAN_EID_MOBILITY_DOMAIN, | |
8ed28747 JB |
964 | WLAN_EID_FAST_BSS_TRANSITION, /* reassoc only */ |
965 | WLAN_EID_RIC_DATA, /* reassoc only */ | |
66e67e41 JB |
966 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, |
967 | }; | |
8ed28747 JB |
968 | static const u8 after_ric[] = { |
969 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, | |
970 | WLAN_EID_HT_CAPABILITY, | |
971 | WLAN_EID_BSS_COEX_2040, | |
a7f26d80 | 972 | /* luckily this is almost always there */ |
8ed28747 JB |
973 | WLAN_EID_EXT_CAPABILITY, |
974 | WLAN_EID_QOS_TRAFFIC_CAPA, | |
975 | WLAN_EID_TIM_BCAST_REQ, | |
976 | WLAN_EID_INTERWORKING, | |
a7f26d80 | 977 | /* 60 GHz (Multi-band, DMG, MMS) can't happen */ |
8ed28747 JB |
978 | WLAN_EID_VHT_CAPABILITY, |
979 | WLAN_EID_OPMODE_NOTIF, | |
980 | }; | |
981 | ||
982 | noffset = ieee80211_ie_split_ric(assoc_data->ie, | |
983 | assoc_data->ie_len, | |
984 | before_ht, | |
985 | ARRAY_SIZE(before_ht), | |
986 | after_ric, | |
987 | ARRAY_SIZE(after_ric), | |
988 | offset); | |
b952f4df | 989 | skb_put_data(skb, assoc_data->ie + offset, noffset - offset); |
66e67e41 JB |
990 | offset = noffset; |
991 | } | |
992 | ||
f2d9d270 JB |
993 | if (WARN_ON_ONCE((ifmgd->flags & IEEE80211_STA_DISABLE_HT) && |
994 | !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT))) | |
995 | ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; | |
996 | ||
57fa5e85 JB |
997 | if (sband->band != NL80211_BAND_6GHZ && |
998 | !(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) | |
9dde6423 | 999 | ieee80211_add_ht_ie(sdata, skb, assoc_data->ap_ht_param, |
04ecd257 | 1000 | sband, chan, sdata->smps_mode); |
66e67e41 | 1001 | |
3de3802c JB |
1002 | /* if present, add any custom IEs that go before VHT */ |
1003 | if (assoc_data->ie_len) { | |
1004 | static const u8 before_vht[] = { | |
a7f26d80 JB |
1005 | /* |
1006 | * no need to list the ones split off before HT | |
1007 | * or generated here | |
1008 | */ | |
3de3802c JB |
1009 | WLAN_EID_BSS_COEX_2040, |
1010 | WLAN_EID_EXT_CAPABILITY, | |
1011 | WLAN_EID_QOS_TRAFFIC_CAPA, | |
1012 | WLAN_EID_TIM_BCAST_REQ, | |
1013 | WLAN_EID_INTERWORKING, | |
a7f26d80 | 1014 | /* 60 GHz (Multi-band, DMG, MMS) can't happen */ |
3de3802c | 1015 | }; |
8ed28747 JB |
1016 | |
1017 | /* RIC already taken above, so no need to handle here anymore */ | |
3de3802c JB |
1018 | noffset = ieee80211_ie_split(assoc_data->ie, assoc_data->ie_len, |
1019 | before_vht, ARRAY_SIZE(before_vht), | |
1020 | offset); | |
b952f4df | 1021 | skb_put_data(skb, assoc_data->ie + offset, noffset - offset); |
3de3802c JB |
1022 | offset = noffset; |
1023 | } | |
1024 | ||
41cbb0f5 LC |
1025 | /* if present, add any custom IEs that go before HE */ |
1026 | if (assoc_data->ie_len) { | |
1027 | static const u8 before_he[] = { | |
1028 | /* | |
1029 | * no need to list the ones split off before VHT | |
1030 | * or generated here | |
1031 | */ | |
1032 | WLAN_EID_OPMODE_NOTIF, | |
1033 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE, | |
1034 | /* 11ai elements */ | |
1035 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_SESSION, | |
1036 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_PUBLIC_KEY, | |
1037 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_KEY_CONFIRM, | |
1038 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_HLP_CONTAINER, | |
1039 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN, | |
1040 | /* TODO: add 11ah/11aj/11ak elements */ | |
1041 | }; | |
1042 | ||
1043 | /* RIC already taken above, so no need to handle here anymore */ | |
1044 | noffset = ieee80211_ie_split(assoc_data->ie, assoc_data->ie_len, | |
1045 | before_he, ARRAY_SIZE(before_he), | |
1046 | offset); | |
1047 | pos = skb_put(skb, noffset - offset); | |
1048 | memcpy(pos, assoc_data->ie + offset, noffset - offset); | |
1049 | offset = noffset; | |
1050 | } | |
1051 | ||
57fa5e85 JB |
1052 | if (sband->band != NL80211_BAND_6GHZ && |
1053 | !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) | |
b08fbbd8 JB |
1054 | ieee80211_add_vht_ie(sdata, skb, sband, |
1055 | &assoc_data->ap_vht_cap); | |
d545daba | 1056 | |
dc7eb0f2 | 1057 | /* |
5dca295d | 1058 | * If AP doesn't support HT, mark HE and EHT as disabled. |
dc7eb0f2 ST |
1059 | * If on the 5GHz band, make sure it supports VHT. |
1060 | */ | |
1061 | if (ifmgd->flags & IEEE80211_STA_DISABLE_HT || | |
1062 | (sband->band == NL80211_BAND_5GHZ && | |
1063 | ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) | |
5dca295d IP |
1064 | ifmgd->flags |= IEEE80211_STA_DISABLE_HE | |
1065 | IEEE80211_STA_DISABLE_EHT; | |
dc7eb0f2 | 1066 | |
820acc81 | 1067 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) { |
41cbb0f5 LC |
1068 | ieee80211_add_he_ie(sdata, skb, sband); |
1069 | ||
820acc81 IP |
1070 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_EHT)) |
1071 | ieee80211_add_eht_ie(sdata, skb, sband); | |
1072 | } | |
1073 | ||
41cbb0f5 | 1074 | /* if present, add any custom non-vendor IEs that go after HE */ |
b3f51e94 | 1075 | if (assoc_data->ie_len) { |
66e67e41 JB |
1076 | noffset = ieee80211_ie_split_vendor(assoc_data->ie, |
1077 | assoc_data->ie_len, | |
1078 | offset); | |
b952f4df | 1079 | skb_put_data(skb, assoc_data->ie + offset, noffset - offset); |
66e67e41 JB |
1080 | offset = noffset; |
1081 | } | |
1082 | ||
76f0303d JB |
1083 | if (assoc_data->wmm) { |
1084 | if (assoc_data->uapsd) { | |
dc41e4d4 EP |
1085 | qos_info = ifmgd->uapsd_queues; |
1086 | qos_info |= (ifmgd->uapsd_max_sp_len << | |
66e67e41 JB |
1087 | IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT); |
1088 | } else { | |
1089 | qos_info = 0; | |
1090 | } | |
1091 | ||
40b861a0 | 1092 | pos = ieee80211_add_wmm_info_ie(skb_put(skb, 9), qos_info); |
66e67e41 JB |
1093 | } |
1094 | ||
1d00ce80 TP |
1095 | if (sband->band == NL80211_BAND_S1GHZ) { |
1096 | ieee80211_add_aid_request_ie(sdata, skb); | |
7957c6c8 | 1097 | ieee80211_add_s1g_capab_ie(sdata, &sband->s1g_cap, skb); |
1d00ce80 | 1098 | } |
7957c6c8 | 1099 | |
9bd6a83e JB |
1100 | if (iftd && iftd->vendor_elems.data && iftd->vendor_elems.len) |
1101 | skb_put_data(skb, iftd->vendor_elems.data, iftd->vendor_elems.len); | |
1102 | ||
66e67e41 | 1103 | /* add any remaining custom (i.e. vendor specific here) IEs */ |
b3f51e94 | 1104 | if (assoc_data->ie_len) { |
66e67e41 | 1105 | noffset = assoc_data->ie_len; |
b952f4df | 1106 | skb_put_data(skb, assoc_data->ie + offset, noffset - offset); |
66e67e41 JB |
1107 | } |
1108 | ||
a72c01a9 JJ |
1109 | if (assoc_data->fils_kek_len) { |
1110 | ret = fils_encrypt_assoc_req(skb, assoc_data); | |
1111 | if (ret < 0) { | |
1112 | dev_kfree_skb(skb); | |
1113 | return ret; | |
1114 | } | |
39404fee JM |
1115 | } |
1116 | ||
4d9ec73d JM |
1117 | pos = skb_tail_pointer(skb); |
1118 | kfree(ifmgd->assoc_req_ies); | |
1119 | ifmgd->assoc_req_ies = kmemdup(ie_start, pos - ie_start, GFP_ATOMIC); | |
a72c01a9 JJ |
1120 | if (!ifmgd->assoc_req_ies) { |
1121 | dev_kfree_skb(skb); | |
1122 | return -ENOMEM; | |
1123 | } | |
1124 | ||
4d9ec73d JM |
1125 | ifmgd->assoc_req_ies_len = pos - ie_start; |
1126 | ||
15fae341 | 1127 | drv_mgd_prepare_tx(local, sdata, &info); |
a1845fc7 | 1128 | |
66e67e41 | 1129 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; |
30686bf7 | 1130 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
1672c0e3 JB |
1131 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | |
1132 | IEEE80211_TX_INTFL_MLME_CONN_TX; | |
66e67e41 | 1133 | ieee80211_tx_skb(sdata, skb); |
a72c01a9 JJ |
1134 | |
1135 | return 0; | |
66e67e41 JB |
1136 | } |
1137 | ||
572e0012 KV |
1138 | void ieee80211_send_pspoll(struct ieee80211_local *local, |
1139 | struct ieee80211_sub_if_data *sdata) | |
1140 | { | |
572e0012 KV |
1141 | struct ieee80211_pspoll *pspoll; |
1142 | struct sk_buff *skb; | |
572e0012 | 1143 | |
d8cd189e KV |
1144 | skb = ieee80211_pspoll_get(&local->hw, &sdata->vif); |
1145 | if (!skb) | |
572e0012 | 1146 | return; |
572e0012 | 1147 | |
d8cd189e KV |
1148 | pspoll = (struct ieee80211_pspoll *) skb->data; |
1149 | pspoll->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
572e0012 | 1150 | |
62ae67be JB |
1151 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; |
1152 | ieee80211_tx_skb(sdata, skb); | |
572e0012 KV |
1153 | } |
1154 | ||
965bedad JB |
1155 | void ieee80211_send_nullfunc(struct ieee80211_local *local, |
1156 | struct ieee80211_sub_if_data *sdata, | |
076cdcb1 | 1157 | bool powersave) |
965bedad JB |
1158 | { |
1159 | struct sk_buff *skb; | |
d8cd189e | 1160 | struct ieee80211_hdr_3addr *nullfunc; |
b6f35301 | 1161 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
965bedad | 1162 | |
7c181f4f BCD |
1163 | skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif, |
1164 | !ieee80211_hw_check(&local->hw, DOESNT_SUPPORT_QOS_NDP)); | |
d8cd189e | 1165 | if (!skb) |
965bedad | 1166 | return; |
965bedad | 1167 | |
d8cd189e | 1168 | nullfunc = (struct ieee80211_hdr_3addr *) skb->data; |
965bedad | 1169 | if (powersave) |
d8cd189e | 1170 | nullfunc->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); |
965bedad | 1171 | |
6c17b77b SF |
1172 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | |
1173 | IEEE80211_TX_INTFL_OFFCHAN_TX_OK; | |
ff40b425 | 1174 | |
30686bf7 | 1175 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
ff40b425 PF |
1176 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; |
1177 | ||
392b9ffb | 1178 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) |
b6f35301 RM |
1179 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE; |
1180 | ||
62ae67be | 1181 | ieee80211_tx_skb(sdata, skb); |
965bedad JB |
1182 | } |
1183 | ||
a5d3cbdb FF |
1184 | void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, |
1185 | struct ieee80211_sub_if_data *sdata) | |
d524215f FF |
1186 | { |
1187 | struct sk_buff *skb; | |
1188 | struct ieee80211_hdr *nullfunc; | |
1189 | __le16 fc; | |
1190 | ||
1191 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
1192 | return; | |
1193 | ||
1194 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30); | |
d15b8459 | 1195 | if (!skb) |
d524215f | 1196 | return; |
d15b8459 | 1197 | |
d524215f FF |
1198 | skb_reserve(skb, local->hw.extra_tx_headroom); |
1199 | ||
b080db58 | 1200 | nullfunc = skb_put_zero(skb, 30); |
d524215f FF |
1201 | fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC | |
1202 | IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS); | |
1203 | nullfunc->frame_control = fc; | |
1204 | memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN); | |
1205 | memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); | |
1206 | memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN); | |
1207 | memcpy(nullfunc->addr4, sdata->vif.addr, ETH_ALEN); | |
1208 | ||
1209 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; | |
1210 | ieee80211_tx_skb(sdata, skb); | |
1211 | } | |
1212 | ||
cc32abd4 JB |
1213 | /* spectrum management related things */ |
1214 | static void ieee80211_chswitch_work(struct work_struct *work) | |
1215 | { | |
1216 | struct ieee80211_sub_if_data *sdata = | |
1217 | container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work); | |
675a0b04 | 1218 | struct ieee80211_local *local = sdata->local; |
cc32abd4 | 1219 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
7578d575 | 1220 | int ret; |
cc32abd4 | 1221 | |
9607e6b6 | 1222 | if (!ieee80211_sdata_running(sdata)) |
cc32abd4 JB |
1223 | return; |
1224 | ||
8d61ffa5 | 1225 | sdata_lock(sdata); |
4c3ebc56 MK |
1226 | mutex_lock(&local->mtx); |
1227 | mutex_lock(&local->chanctx_mtx); | |
1228 | ||
77fdaa12 JB |
1229 | if (!ifmgd->associated) |
1230 | goto out; | |
cc32abd4 | 1231 | |
4c3ebc56 MK |
1232 | if (!sdata->vif.csa_active) |
1233 | goto out; | |
1234 | ||
1235 | /* | |
1236 | * using reservation isn't immediate as it may be deferred until later | |
1237 | * with multi-vif. once reservation is complete it will re-schedule the | |
1238 | * work with no reserved_chanctx so verify chandef to check if it | |
1239 | * completed successfully | |
1240 | */ | |
1241 | ||
1242 | if (sdata->reserved_chanctx) { | |
1243 | /* | |
1244 | * with multi-vif csa driver may call ieee80211_csa_finish() | |
1245 | * many times while waiting for other interfaces to use their | |
1246 | * reservations | |
1247 | */ | |
1248 | if (sdata->reserved_ready) | |
1249 | goto out; | |
1250 | ||
1251 | ret = ieee80211_vif_use_reserved_context(sdata); | |
1252 | if (ret) { | |
1253 | sdata_info(sdata, | |
1254 | "failed to use reserved channel context, disconnecting (err=%d)\n", | |
1255 | ret); | |
1256 | ieee80211_queue_work(&sdata->local->hw, | |
1257 | &ifmgd->csa_connection_drop_work); | |
1258 | goto out; | |
1259 | } | |
1260 | ||
1261 | goto out; | |
1262 | } | |
1263 | ||
1264 | if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef, | |
1265 | &sdata->csa_chandef)) { | |
7578d575 | 1266 | sdata_info(sdata, |
4c3ebc56 | 1267 | "failed to finalize channel switch, disconnecting\n"); |
7578d575 AN |
1268 | ieee80211_queue_work(&sdata->local->hw, |
1269 | &ifmgd->csa_connection_drop_work); | |
1270 | goto out; | |
1271 | } | |
675a0b04 | 1272 | |
0c21e632 LC |
1273 | ifmgd->csa_waiting_bcn = true; |
1274 | ||
1275 | ieee80211_sta_reset_beacon_monitor(sdata); | |
1276 | ieee80211_sta_reset_conn_monitor(sdata); | |
1277 | ||
1278 | out: | |
1279 | mutex_unlock(&local->chanctx_mtx); | |
1280 | mutex_unlock(&local->mtx); | |
1281 | sdata_unlock(sdata); | |
1282 | } | |
1283 | ||
1284 | static void ieee80211_chswitch_post_beacon(struct ieee80211_sub_if_data *sdata) | |
1285 | { | |
1286 | struct ieee80211_local *local = sdata->local; | |
1287 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
1288 | int ret; | |
1289 | ||
1290 | sdata_assert_lock(sdata); | |
1291 | ||
1292 | WARN_ON(!sdata->vif.csa_active); | |
4c3ebc56 | 1293 | |
a46992b4 LC |
1294 | if (sdata->csa_block_tx) { |
1295 | ieee80211_wake_vif_queues(local, sdata, | |
1296 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
1297 | sdata->csa_block_tx = false; | |
1298 | } | |
7578d575 | 1299 | |
0c21e632 LC |
1300 | sdata->vif.csa_active = false; |
1301 | ifmgd->csa_waiting_bcn = false; | |
d6843d1e EG |
1302 | /* |
1303 | * If the CSA IE is still present on the beacon after the switch, | |
1304 | * we need to consider it as a new CSA (possibly to self). | |
1305 | */ | |
1306 | ifmgd->beacon_crc_valid = false; | |
0c21e632 | 1307 | |
f1d65583 LC |
1308 | ret = drv_post_channel_switch(sdata); |
1309 | if (ret) { | |
1310 | sdata_info(sdata, | |
1311 | "driver post channel switch failed, disconnecting\n"); | |
1312 | ieee80211_queue_work(&local->hw, | |
1313 | &ifmgd->csa_connection_drop_work); | |
0c21e632 | 1314 | return; |
f1d65583 | 1315 | } |
688b1ecf LC |
1316 | |
1317 | cfg80211_ch_switch_notify(sdata->dev, &sdata->reserved_chandef); | |
cc32abd4 JB |
1318 | } |
1319 | ||
5ce6e438 JB |
1320 | void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success) |
1321 | { | |
55de908a JB |
1322 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
1323 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
5ce6e438 JB |
1324 | |
1325 | trace_api_chswitch_done(sdata, success); | |
1326 | if (!success) { | |
882a7c69 JB |
1327 | sdata_info(sdata, |
1328 | "driver channel switch failed, disconnecting\n"); | |
1329 | ieee80211_queue_work(&sdata->local->hw, | |
1330 | &ifmgd->csa_connection_drop_work); | |
1331 | } else { | |
1332 | ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work); | |
5ce6e438 | 1333 | } |
5ce6e438 JB |
1334 | } |
1335 | EXPORT_SYMBOL(ieee80211_chswitch_done); | |
1336 | ||
34f11cd3 | 1337 | static void ieee80211_chswitch_timer(struct timer_list *t) |
cc32abd4 JB |
1338 | { |
1339 | struct ieee80211_sub_if_data *sdata = | |
34f11cd3 | 1340 | from_timer(sdata, t, u.mgd.chswitch_timer); |
5bb644a0 | 1341 | |
9b7d72c1 | 1342 | ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.chswitch_work); |
cc32abd4 JB |
1343 | } |
1344 | ||
b9cc81d8 SS |
1345 | static void |
1346 | ieee80211_sta_abort_chanswitch(struct ieee80211_sub_if_data *sdata) | |
1347 | { | |
1348 | struct ieee80211_local *local = sdata->local; | |
1349 | ||
1350 | if (!local->ops->abort_channel_switch) | |
1351 | return; | |
1352 | ||
1353 | mutex_lock(&local->mtx); | |
1354 | ||
1355 | mutex_lock(&local->chanctx_mtx); | |
1356 | ieee80211_vif_unreserve_chanctx(sdata); | |
1357 | mutex_unlock(&local->chanctx_mtx); | |
1358 | ||
1359 | if (sdata->csa_block_tx) | |
1360 | ieee80211_wake_vif_queues(local, sdata, | |
1361 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
1362 | ||
1363 | sdata->csa_block_tx = false; | |
1364 | sdata->vif.csa_active = false; | |
1365 | ||
1366 | mutex_unlock(&local->mtx); | |
1367 | ||
1368 | drv_abort_channel_switch(sdata); | |
1369 | } | |
1370 | ||
37799e52 | 1371 | static void |
4a3cb702 | 1372 | ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata, |
2ba45384 LC |
1373 | u64 timestamp, u32 device_timestamp, |
1374 | struct ieee802_11_elems *elems, | |
04a161f4 | 1375 | bool beacon) |
cc32abd4 | 1376 | { |
b4f286a1 | 1377 | struct ieee80211_local *local = sdata->local; |
cc32abd4 | 1378 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
5dfad108 | 1379 | struct cfg80211_bss *cbss = ifmgd->assoc_bss; |
4c3ebc56 | 1380 | struct ieee80211_chanctx_conf *conf; |
55de908a | 1381 | struct ieee80211_chanctx *chanctx; |
57fbcce3 | 1382 | enum nl80211_band current_band; |
c0f17eb9 | 1383 | struct ieee80211_csa_ie csa_ie; |
6d027bcc | 1384 | struct ieee80211_channel_switch ch_switch; |
2a333a0d | 1385 | struct ieee80211_bss *bss; |
e6b7cde4 | 1386 | int res; |
cc32abd4 | 1387 | |
8d61ffa5 | 1388 | sdata_assert_lock(sdata); |
77fdaa12 | 1389 | |
37799e52 | 1390 | if (!cbss) |
cc32abd4 JB |
1391 | return; |
1392 | ||
b4f286a1 | 1393 | if (local->scanning) |
cc32abd4 JB |
1394 | return; |
1395 | ||
e6b7cde4 | 1396 | current_band = cbss->channel->band; |
2a333a0d | 1397 | bss = (void *)cbss->priv; |
84469a45 | 1398 | res = ieee80211_parse_ch_switch_ie(sdata, elems, current_band, |
2a333a0d | 1399 | bss->vht_cap_info, |
e6b7cde4 | 1400 | ifmgd->flags, |
c8fe4b0b | 1401 | ifmgd->bssid, &csa_ie); |
fafd2bce SS |
1402 | |
1403 | if (!res) { | |
1404 | ch_switch.timestamp = timestamp; | |
1405 | ch_switch.device_timestamp = device_timestamp; | |
2bf973ff | 1406 | ch_switch.block_tx = csa_ie.mode; |
fafd2bce SS |
1407 | ch_switch.chandef = csa_ie.chandef; |
1408 | ch_switch.count = csa_ie.count; | |
1409 | ch_switch.delay = csa_ie.max_switch_time; | |
1410 | } | |
1411 | ||
253907ab EG |
1412 | if (res < 0) |
1413 | goto lock_and_drop_connection; | |
b9cc81d8 | 1414 | |
fafd2bce SS |
1415 | if (beacon && sdata->vif.csa_active && !ifmgd->csa_waiting_bcn) { |
1416 | if (res) | |
1417 | ieee80211_sta_abort_chanswitch(sdata); | |
1418 | else | |
1419 | drv_channel_switch_rx_beacon(sdata, &ch_switch); | |
b9cc81d8 SS |
1420 | return; |
1421 | } else if (sdata->vif.csa_active || res) { | |
1422 | /* disregard subsequent announcements if already processing */ | |
1423 | return; | |
1424 | } | |
cd64f2a9 | 1425 | |
3660944a JB |
1426 | if (sdata->vif.bss_conf.chandef.chan->band != |
1427 | csa_ie.chandef.chan->band) { | |
1428 | sdata_info(sdata, | |
1429 | "AP %pM switches to different band (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n", | |
c8fe4b0b | 1430 | ifmgd->bssid, |
3660944a JB |
1431 | csa_ie.chandef.chan->center_freq, |
1432 | csa_ie.chandef.width, csa_ie.chandef.center_freq1, | |
1433 | csa_ie.chandef.center_freq2); | |
1434 | goto lock_and_drop_connection; | |
1435 | } | |
1436 | ||
c0f17eb9 | 1437 | if (!cfg80211_chandef_usable(local->hw.wiphy, &csa_ie.chandef, |
85220d71 JB |
1438 | IEEE80211_CHAN_DISABLED)) { |
1439 | sdata_info(sdata, | |
b6011960 TP |
1440 | "AP %pM switches to unsupported channel " |
1441 | "(%d.%03d MHz, width:%d, CF1/2: %d.%03d/%d MHz), " | |
1442 | "disconnecting\n", | |
c8fe4b0b | 1443 | ifmgd->bssid, |
c0f17eb9 | 1444 | csa_ie.chandef.chan->center_freq, |
b6011960 | 1445 | csa_ie.chandef.chan->freq_offset, |
c0f17eb9 | 1446 | csa_ie.chandef.width, csa_ie.chandef.center_freq1, |
b6011960 | 1447 | csa_ie.chandef.freq1_offset, |
c0f17eb9 | 1448 | csa_ie.chandef.center_freq2); |
3660944a | 1449 | goto lock_and_drop_connection; |
85220d71 JB |
1450 | } |
1451 | ||
f84eaa10 | 1452 | if (cfg80211_chandef_identical(&csa_ie.chandef, |
9792875c SS |
1453 | &sdata->vif.bss_conf.chandef) && |
1454 | (!csa_ie.mode || !beacon)) { | |
f84eaa10 JB |
1455 | if (ifmgd->csa_ignored_same_chan) |
1456 | return; | |
1457 | sdata_info(sdata, | |
1458 | "AP %pM tries to chanswitch to same channel, ignore\n", | |
c8fe4b0b | 1459 | ifmgd->bssid); |
f84eaa10 JB |
1460 | ifmgd->csa_ignored_same_chan = true; |
1461 | return; | |
1462 | } | |
1463 | ||
c5a71688 AN |
1464 | /* |
1465 | * Drop all TDLS peers - either we disconnect or move to a different | |
1466 | * channel from this point on. There's no telling what our peer will do. | |
1467 | * The TDLS WIDER_BW scenario is also problematic, as peers might now | |
1468 | * have an incompatible wider chandef. | |
1469 | */ | |
1470 | ieee80211_teardown_tdls_peers(sdata); | |
1471 | ||
4c3ebc56 | 1472 | mutex_lock(&local->mtx); |
7578d575 | 1473 | mutex_lock(&local->chanctx_mtx); |
4c3ebc56 MK |
1474 | conf = rcu_dereference_protected(sdata->vif.chanctx_conf, |
1475 | lockdep_is_held(&local->chanctx_mtx)); | |
1476 | if (!conf) { | |
1477 | sdata_info(sdata, | |
1478 | "no channel context assigned to vif?, disconnecting\n"); | |
f3b0bbb3 | 1479 | goto drop_connection; |
4c3ebc56 MK |
1480 | } |
1481 | ||
1482 | chanctx = container_of(conf, struct ieee80211_chanctx, conf); | |
1483 | ||
0f791eb4 | 1484 | if (local->use_chanctx && |
30686bf7 | 1485 | !ieee80211_hw_check(&local->hw, CHANCTX_STA_CSA)) { |
0f791eb4 LC |
1486 | sdata_info(sdata, |
1487 | "driver doesn't support chan-switch with channel contexts\n"); | |
f3b0bbb3 | 1488 | goto drop_connection; |
55de908a JB |
1489 | } |
1490 | ||
6d027bcc LC |
1491 | if (drv_pre_channel_switch(sdata, &ch_switch)) { |
1492 | sdata_info(sdata, | |
1493 | "preparing for channel switch failed, disconnecting\n"); | |
f3b0bbb3 | 1494 | goto drop_connection; |
6d027bcc LC |
1495 | } |
1496 | ||
4c3ebc56 MK |
1497 | res = ieee80211_vif_reserve_chanctx(sdata, &csa_ie.chandef, |
1498 | chanctx->mode, false); | |
1499 | if (res) { | |
55de908a | 1500 | sdata_info(sdata, |
4c3ebc56 MK |
1501 | "failed to reserve channel context for channel switch, disconnecting (err=%d)\n", |
1502 | res); | |
f3b0bbb3 | 1503 | goto drop_connection; |
55de908a | 1504 | } |
b4f286a1 | 1505 | mutex_unlock(&local->chanctx_mtx); |
55de908a | 1506 | |
c46a73f3 | 1507 | sdata->vif.csa_active = true; |
4c3ebc56 | 1508 | sdata->csa_chandef = csa_ie.chandef; |
2bf973ff | 1509 | sdata->csa_block_tx = csa_ie.mode; |
f84eaa10 | 1510 | ifmgd->csa_ignored_same_chan = false; |
189a164d | 1511 | ifmgd->beacon_crc_valid = false; |
55de908a | 1512 | |
59af6928 | 1513 | if (sdata->csa_block_tx) |
a46992b4 LC |
1514 | ieee80211_stop_vif_queues(local, sdata, |
1515 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
59af6928 | 1516 | mutex_unlock(&local->mtx); |
57eebdf3 | 1517 | |
2f457293 | 1518 | cfg80211_ch_switch_started_notify(sdata->dev, &csa_ie.chandef, |
669b8413 | 1519 | csa_ie.count, csa_ie.mode); |
2f457293 | 1520 | |
b4f286a1 | 1521 | if (local->ops->channel_switch) { |
5ce6e438 | 1522 | /* use driver's channel switch callback */ |
0f791eb4 | 1523 | drv_channel_switch(local, sdata, &ch_switch); |
5ce6e438 JB |
1524 | return; |
1525 | } | |
1526 | ||
1527 | /* channel switch handled in software */ | |
c0f17eb9 | 1528 | if (csa_ie.count <= 1) |
b4f286a1 | 1529 | ieee80211_queue_work(&local->hw, &ifmgd->chswitch_work); |
57eebdf3 | 1530 | else |
cc32abd4 | 1531 | mod_timer(&ifmgd->chswitch_timer, |
ff1e417c LC |
1532 | TU_TO_EXP_TIME((csa_ie.count - 1) * |
1533 | cbss->beacon_interval)); | |
f3b0bbb3 | 1534 | return; |
3660944a JB |
1535 | lock_and_drop_connection: |
1536 | mutex_lock(&local->mtx); | |
1537 | mutex_lock(&local->chanctx_mtx); | |
f3b0bbb3 | 1538 | drop_connection: |
6c18b27d EG |
1539 | /* |
1540 | * This is just so that the disconnect flow will know that | |
1541 | * we were trying to switch channel and failed. In case the | |
1542 | * mode is 1 (we are not allowed to Tx), we will know not to | |
1543 | * send a deauthentication frame. Those two fields will be | |
1544 | * reset when the disconnection worker runs. | |
1545 | */ | |
1546 | sdata->vif.csa_active = true; | |
2bf973ff | 1547 | sdata->csa_block_tx = csa_ie.mode; |
6c18b27d | 1548 | |
f3b0bbb3 JB |
1549 | ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); |
1550 | mutex_unlock(&local->chanctx_mtx); | |
1551 | mutex_unlock(&local->mtx); | |
cc32abd4 JB |
1552 | } |
1553 | ||
24a4e400 SG |
1554 | static bool |
1555 | ieee80211_find_80211h_pwr_constr(struct ieee80211_sub_if_data *sdata, | |
1556 | struct ieee80211_channel *channel, | |
1557 | const u8 *country_ie, u8 country_ie_len, | |
1558 | const u8 *pwr_constr_elem, | |
1559 | int *chan_pwr, int *pwr_reduction) | |
cc32abd4 | 1560 | { |
04b7b2ff JB |
1561 | struct ieee80211_country_ie_triplet *triplet; |
1562 | int chan = ieee80211_frequency_to_channel(channel->center_freq); | |
24a4e400 | 1563 | int i, chan_increment; |
04b7b2ff | 1564 | bool have_chan_pwr = false; |
cc32abd4 | 1565 | |
04b7b2ff JB |
1566 | /* Invalid IE */ |
1567 | if (country_ie_len % 2 || country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) | |
24a4e400 | 1568 | return false; |
cc32abd4 | 1569 | |
04b7b2ff JB |
1570 | triplet = (void *)(country_ie + 3); |
1571 | country_ie_len -= 3; | |
1572 | ||
1573 | switch (channel->band) { | |
1574 | default: | |
1575 | WARN_ON_ONCE(1); | |
fc0561dc | 1576 | fallthrough; |
57fbcce3 JB |
1577 | case NL80211_BAND_2GHZ: |
1578 | case NL80211_BAND_60GHZ: | |
63fa0426 | 1579 | case NL80211_BAND_LC: |
04b7b2ff JB |
1580 | chan_increment = 1; |
1581 | break; | |
57fbcce3 | 1582 | case NL80211_BAND_5GHZ: |
04b7b2ff JB |
1583 | chan_increment = 4; |
1584 | break; | |
2dedfe1d JB |
1585 | case NL80211_BAND_6GHZ: |
1586 | /* | |
1587 | * In the 6 GHz band, the "maximum transmit power level" | |
1588 | * field in the triplets is reserved, and thus will be | |
1589 | * zero and we shouldn't use it to control TX power. | |
1590 | * The actual TX power will be given in the transmit | |
1591 | * power envelope element instead. | |
1592 | */ | |
1593 | return false; | |
cc32abd4 | 1594 | } |
04b7b2ff JB |
1595 | |
1596 | /* find channel */ | |
1597 | while (country_ie_len >= 3) { | |
1598 | u8 first_channel = triplet->chans.first_channel; | |
1599 | ||
1600 | if (first_channel >= IEEE80211_COUNTRY_EXTENSION_ID) | |
1601 | goto next; | |
1602 | ||
1603 | for (i = 0; i < triplet->chans.num_channels; i++) { | |
1604 | if (first_channel + i * chan_increment == chan) { | |
1605 | have_chan_pwr = true; | |
24a4e400 | 1606 | *chan_pwr = triplet->chans.max_power; |
04b7b2ff JB |
1607 | break; |
1608 | } | |
1609 | } | |
1610 | if (have_chan_pwr) | |
1611 | break; | |
1612 | ||
1613 | next: | |
1614 | triplet++; | |
1615 | country_ie_len -= 3; | |
1616 | } | |
1617 | ||
a5fee9cb | 1618 | if (have_chan_pwr && pwr_constr_elem) |
24a4e400 | 1619 | *pwr_reduction = *pwr_constr_elem; |
a5fee9cb MB |
1620 | else |
1621 | *pwr_reduction = 0; | |
1622 | ||
24a4e400 SG |
1623 | return have_chan_pwr; |
1624 | } | |
1625 | ||
c8d65917 SG |
1626 | static void ieee80211_find_cisco_dtpc(struct ieee80211_sub_if_data *sdata, |
1627 | struct ieee80211_channel *channel, | |
1628 | const u8 *cisco_dtpc_ie, | |
1629 | int *pwr_level) | |
1630 | { | |
1631 | /* From practical testing, the first data byte of the DTPC element | |
1632 | * seems to contain the requested dBm level, and the CLI on Cisco | |
1633 | * APs clearly state the range is -127 to 127 dBm, which indicates | |
1634 | * a signed byte, although it seemingly never actually goes negative. | |
1635 | * The other byte seems to always be zero. | |
1636 | */ | |
1637 | *pwr_level = (__s8)cisco_dtpc_ie[4]; | |
1638 | } | |
1639 | ||
24a4e400 SG |
1640 | static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata, |
1641 | struct ieee80211_channel *channel, | |
1642 | struct ieee80211_mgmt *mgmt, | |
1643 | const u8 *country_ie, u8 country_ie_len, | |
c8d65917 SG |
1644 | const u8 *pwr_constr_ie, |
1645 | const u8 *cisco_dtpc_ie) | |
24a4e400 | 1646 | { |
c8d65917 SG |
1647 | bool has_80211h_pwr = false, has_cisco_pwr = false; |
1648 | int chan_pwr = 0, pwr_reduction_80211h = 0; | |
1649 | int pwr_level_cisco, pwr_level_80211h; | |
24a4e400 | 1650 | int new_ap_level; |
a5fee9cb | 1651 | __le16 capab = mgmt->u.probe_resp.capab_info; |
04b7b2ff | 1652 | |
09a740ce TP |
1653 | if (ieee80211_is_s1g_beacon(mgmt->frame_control)) |
1654 | return 0; /* TODO */ | |
1655 | ||
a5fee9cb MB |
1656 | if (country_ie && |
1657 | (capab & cpu_to_le16(WLAN_CAPABILITY_SPECTRUM_MGMT) || | |
1658 | capab & cpu_to_le16(WLAN_CAPABILITY_RADIO_MEASURE))) { | |
24a4e400 SG |
1659 | has_80211h_pwr = ieee80211_find_80211h_pwr_constr( |
1660 | sdata, channel, country_ie, country_ie_len, | |
1661 | pwr_constr_ie, &chan_pwr, &pwr_reduction_80211h); | |
c8d65917 SG |
1662 | pwr_level_80211h = |
1663 | max_t(int, 0, chan_pwr - pwr_reduction_80211h); | |
1664 | } | |
1665 | ||
1666 | if (cisco_dtpc_ie) { | |
1667 | ieee80211_find_cisco_dtpc( | |
1668 | sdata, channel, cisco_dtpc_ie, &pwr_level_cisco); | |
1669 | has_cisco_pwr = true; | |
24a4e400 | 1670 | } |
04b7b2ff | 1671 | |
c8d65917 | 1672 | if (!has_80211h_pwr && !has_cisco_pwr) |
1ea6f9c0 | 1673 | return 0; |
04b7b2ff | 1674 | |
c8d65917 SG |
1675 | /* If we have both 802.11h and Cisco DTPC, apply both limits |
1676 | * by picking the smallest of the two power levels advertised. | |
1677 | */ | |
1678 | if (has_80211h_pwr && | |
1679 | (!has_cisco_pwr || pwr_level_80211h <= pwr_level_cisco)) { | |
a87da0cb JB |
1680 | new_ap_level = pwr_level_80211h; |
1681 | ||
1682 | if (sdata->ap_power_level == new_ap_level) | |
1683 | return 0; | |
1684 | ||
cef2fc1c JL |
1685 | sdata_dbg(sdata, |
1686 | "Limiting TX power to %d (%d - %d) dBm as advertised by %pM\n", | |
1687 | pwr_level_80211h, chan_pwr, pwr_reduction_80211h, | |
1688 | sdata->u.mgd.bssid); | |
c8d65917 | 1689 | } else { /* has_cisco_pwr is always true here. */ |
a87da0cb JB |
1690 | new_ap_level = pwr_level_cisco; |
1691 | ||
1692 | if (sdata->ap_power_level == new_ap_level) | |
1693 | return 0; | |
1694 | ||
cef2fc1c JL |
1695 | sdata_dbg(sdata, |
1696 | "Limiting TX power to %d dBm as advertised by %pM\n", | |
1697 | pwr_level_cisco, sdata->u.mgd.bssid); | |
c8d65917 | 1698 | } |
04b7b2ff | 1699 | |
1ea6f9c0 JB |
1700 | sdata->ap_power_level = new_ap_level; |
1701 | if (__ieee80211_recalc_txpower(sdata)) | |
1702 | return BSS_CHANGED_TXPOWER; | |
1703 | return 0; | |
cc32abd4 JB |
1704 | } |
1705 | ||
965bedad JB |
1706 | /* powersave */ |
1707 | static void ieee80211_enable_ps(struct ieee80211_local *local, | |
1708 | struct ieee80211_sub_if_data *sdata) | |
1709 | { | |
1710 | struct ieee80211_conf *conf = &local->hw.conf; | |
1711 | ||
d5edaedc JB |
1712 | /* |
1713 | * If we are scanning right now then the parameters will | |
1714 | * take effect when scan finishes. | |
1715 | */ | |
fbe9c429 | 1716 | if (local->scanning) |
d5edaedc JB |
1717 | return; |
1718 | ||
965bedad | 1719 | if (conf->dynamic_ps_timeout > 0 && |
30686bf7 | 1720 | !ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) { |
965bedad JB |
1721 | mod_timer(&local->dynamic_ps_timer, jiffies + |
1722 | msecs_to_jiffies(conf->dynamic_ps_timeout)); | |
1723 | } else { | |
30686bf7 | 1724 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK)) |
076cdcb1 | 1725 | ieee80211_send_nullfunc(local, sdata, true); |
375177bf | 1726 | |
30686bf7 JB |
1727 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && |
1728 | ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) | |
2a13052f JO |
1729 | return; |
1730 | ||
1731 | conf->flags |= IEEE80211_CONF_PS; | |
1732 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
965bedad JB |
1733 | } |
1734 | } | |
1735 | ||
1736 | static void ieee80211_change_ps(struct ieee80211_local *local) | |
1737 | { | |
1738 | struct ieee80211_conf *conf = &local->hw.conf; | |
1739 | ||
1740 | if (local->ps_sdata) { | |
965bedad JB |
1741 | ieee80211_enable_ps(local, local->ps_sdata); |
1742 | } else if (conf->flags & IEEE80211_CONF_PS) { | |
1743 | conf->flags &= ~IEEE80211_CONF_PS; | |
1744 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
1745 | del_timer_sync(&local->dynamic_ps_timer); | |
1746 | cancel_work_sync(&local->dynamic_ps_enable_work); | |
1747 | } | |
1748 | } | |
1749 | ||
808118cb JY |
1750 | static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata) |
1751 | { | |
1752 | struct ieee80211_if_managed *mgd = &sdata->u.mgd; | |
1753 | struct sta_info *sta = NULL; | |
c2c98fde | 1754 | bool authorized = false; |
808118cb JY |
1755 | |
1756 | if (!mgd->powersave) | |
1757 | return false; | |
1758 | ||
05cb9108 JB |
1759 | if (mgd->broken_ap) |
1760 | return false; | |
1761 | ||
808118cb JY |
1762 | if (!mgd->associated) |
1763 | return false; | |
1764 | ||
392b9ffb | 1765 | if (mgd->flags & IEEE80211_STA_CONNECTION_POLL) |
808118cb JY |
1766 | return false; |
1767 | ||
989c6505 | 1768 | if (!mgd->have_beacon) |
ce857888 AB |
1769 | return false; |
1770 | ||
808118cb JY |
1771 | rcu_read_lock(); |
1772 | sta = sta_info_get(sdata, mgd->bssid); | |
1773 | if (sta) | |
c2c98fde | 1774 | authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED); |
808118cb JY |
1775 | rcu_read_unlock(); |
1776 | ||
c2c98fde | 1777 | return authorized; |
808118cb JY |
1778 | } |
1779 | ||
965bedad | 1780 | /* need to hold RTNL or interface lock */ |
4a733ef1 | 1781 | void ieee80211_recalc_ps(struct ieee80211_local *local) |
965bedad JB |
1782 | { |
1783 | struct ieee80211_sub_if_data *sdata, *found = NULL; | |
1784 | int count = 0; | |
195e294d | 1785 | int timeout; |
965bedad | 1786 | |
30686bf7 | 1787 | if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS)) { |
965bedad JB |
1788 | local->ps_sdata = NULL; |
1789 | return; | |
1790 | } | |
1791 | ||
1792 | list_for_each_entry(sdata, &local->interfaces, list) { | |
9607e6b6 | 1793 | if (!ieee80211_sdata_running(sdata)) |
965bedad | 1794 | continue; |
8c7914de RM |
1795 | if (sdata->vif.type == NL80211_IFTYPE_AP) { |
1796 | /* If an AP vif is found, then disable PS | |
1797 | * by setting the count to zero thereby setting | |
1798 | * ps_sdata to NULL. | |
1799 | */ | |
1800 | count = 0; | |
1801 | break; | |
1802 | } | |
965bedad JB |
1803 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
1804 | continue; | |
1805 | found = sdata; | |
1806 | count++; | |
1807 | } | |
1808 | ||
808118cb | 1809 | if (count == 1 && ieee80211_powersave_allowed(found)) { |
4a733ef1 | 1810 | u8 dtimper = found->u.mgd.dtim_period; |
10f644a4 | 1811 | |
ff616381 | 1812 | timeout = local->dynamic_ps_forced_timeout; |
4a733ef1 JB |
1813 | if (timeout < 0) |
1814 | timeout = 100; | |
09b85568 | 1815 | local->hw.conf.dynamic_ps_timeout = timeout; |
195e294d | 1816 | |
4a733ef1 JB |
1817 | /* If the TIM IE is invalid, pretend the value is 1 */ |
1818 | if (!dtimper) | |
1819 | dtimper = 1; | |
1820 | ||
1821 | local->hw.conf.ps_dtim_period = dtimper; | |
1822 | local->ps_sdata = found; | |
10f644a4 | 1823 | } else { |
965bedad | 1824 | local->ps_sdata = NULL; |
10f644a4 | 1825 | } |
965bedad JB |
1826 | |
1827 | ieee80211_change_ps(local); | |
1828 | } | |
1829 | ||
ab095877 EP |
1830 | void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata) |
1831 | { | |
1832 | bool ps_allowed = ieee80211_powersave_allowed(sdata); | |
1833 | ||
1834 | if (sdata->vif.bss_conf.ps != ps_allowed) { | |
1835 | sdata->vif.bss_conf.ps = ps_allowed; | |
1836 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_PS); | |
1837 | } | |
1838 | } | |
1839 | ||
965bedad JB |
1840 | void ieee80211_dynamic_ps_disable_work(struct work_struct *work) |
1841 | { | |
1842 | struct ieee80211_local *local = | |
1843 | container_of(work, struct ieee80211_local, | |
1844 | dynamic_ps_disable_work); | |
1845 | ||
1846 | if (local->hw.conf.flags & IEEE80211_CONF_PS) { | |
1847 | local->hw.conf.flags &= ~IEEE80211_CONF_PS; | |
1848 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
1849 | } | |
1850 | ||
1851 | ieee80211_wake_queues_by_reason(&local->hw, | |
445ea4e8 | 1852 | IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
1853 | IEEE80211_QUEUE_STOP_REASON_PS, |
1854 | false); | |
965bedad JB |
1855 | } |
1856 | ||
1857 | void ieee80211_dynamic_ps_enable_work(struct work_struct *work) | |
1858 | { | |
1859 | struct ieee80211_local *local = | |
1860 | container_of(work, struct ieee80211_local, | |
1861 | dynamic_ps_enable_work); | |
1862 | struct ieee80211_sub_if_data *sdata = local->ps_sdata; | |
5e34069c | 1863 | struct ieee80211_if_managed *ifmgd; |
1ddc2867 RM |
1864 | unsigned long flags; |
1865 | int q; | |
965bedad JB |
1866 | |
1867 | /* can only happen when PS was just disabled anyway */ | |
1868 | if (!sdata) | |
1869 | return; | |
1870 | ||
5e34069c CL |
1871 | ifmgd = &sdata->u.mgd; |
1872 | ||
965bedad JB |
1873 | if (local->hw.conf.flags & IEEE80211_CONF_PS) |
1874 | return; | |
1875 | ||
09b85568 | 1876 | if (local->hw.conf.dynamic_ps_timeout > 0) { |
77b7023a AN |
1877 | /* don't enter PS if TX frames are pending */ |
1878 | if (drv_tx_frames_pending(local)) { | |
1ddc2867 RM |
1879 | mod_timer(&local->dynamic_ps_timer, jiffies + |
1880 | msecs_to_jiffies( | |
1881 | local->hw.conf.dynamic_ps_timeout)); | |
1882 | return; | |
1883 | } | |
77b7023a AN |
1884 | |
1885 | /* | |
1886 | * transmission can be stopped by others which leads to | |
1887 | * dynamic_ps_timer expiry. Postpone the ps timer if it | |
1888 | * is not the actual idle state. | |
1889 | */ | |
1890 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
1891 | for (q = 0; q < local->hw.queues; q++) { | |
1892 | if (local->queue_stop_reasons[q]) { | |
1893 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, | |
1894 | flags); | |
1895 | mod_timer(&local->dynamic_ps_timer, jiffies + | |
1896 | msecs_to_jiffies( | |
1897 | local->hw.conf.dynamic_ps_timeout)); | |
1898 | return; | |
1899 | } | |
1900 | } | |
1901 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
1ddc2867 | 1902 | } |
1ddc2867 | 1903 | |
30686bf7 | 1904 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && |
9c38a8b4 | 1905 | !(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) { |
a1598383 | 1906 | if (drv_tx_frames_pending(local)) { |
e8306f98 VN |
1907 | mod_timer(&local->dynamic_ps_timer, jiffies + |
1908 | msecs_to_jiffies( | |
1909 | local->hw.conf.dynamic_ps_timeout)); | |
a1598383 | 1910 | } else { |
076cdcb1 | 1911 | ieee80211_send_nullfunc(local, sdata, true); |
e8306f98 | 1912 | /* Flush to get the tx status of nullfunc frame */ |
3b24f4c6 | 1913 | ieee80211_flush_queues(local, sdata, false); |
e8306f98 | 1914 | } |
f3e85b9e VN |
1915 | } |
1916 | ||
30686bf7 JB |
1917 | if (!(ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS) && |
1918 | ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK)) || | |
375177bf VN |
1919 | (ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) { |
1920 | ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED; | |
1921 | local->hw.conf.flags |= IEEE80211_CONF_PS; | |
1922 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
1923 | } | |
965bedad JB |
1924 | } |
1925 | ||
34f11cd3 | 1926 | void ieee80211_dynamic_ps_timer(struct timer_list *t) |
965bedad | 1927 | { |
34f11cd3 | 1928 | struct ieee80211_local *local = from_timer(local, t, dynamic_ps_timer); |
965bedad | 1929 | |
42935eca | 1930 | ieee80211_queue_work(&local->hw, &local->dynamic_ps_enable_work); |
965bedad JB |
1931 | } |
1932 | ||
164eb02d SW |
1933 | void ieee80211_dfs_cac_timer_work(struct work_struct *work) |
1934 | { | |
a85a7e28 | 1935 | struct delayed_work *delayed_work = to_delayed_work(work); |
164eb02d SW |
1936 | struct ieee80211_sub_if_data *sdata = |
1937 | container_of(delayed_work, struct ieee80211_sub_if_data, | |
1938 | dfs_cac_timer_work); | |
d2859df5 | 1939 | struct cfg80211_chan_def chandef = sdata->vif.bss_conf.chandef; |
164eb02d | 1940 | |
34a3740d JB |
1941 | mutex_lock(&sdata->local->mtx); |
1942 | if (sdata->wdev.cac_started) { | |
1943 | ieee80211_vif_release_channel(sdata); | |
1944 | cfg80211_cac_event(sdata->dev, &chandef, | |
1945 | NL80211_RADAR_CAC_FINISHED, | |
1946 | GFP_KERNEL); | |
1947 | } | |
1948 | mutex_unlock(&sdata->local->mtx); | |
164eb02d SW |
1949 | } |
1950 | ||
02219b3a JB |
1951 | static bool |
1952 | __ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata) | |
1953 | { | |
1954 | struct ieee80211_local *local = sdata->local; | |
1955 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
cc72f6e2 | 1956 | bool ret = false; |
02219b3a JB |
1957 | int ac; |
1958 | ||
1959 | if (local->hw.queues < IEEE80211_NUM_ACS) | |
1960 | return false; | |
1961 | ||
1962 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { | |
1963 | struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; | |
1964 | int non_acm_ac; | |
1965 | unsigned long now = jiffies; | |
1966 | ||
1967 | if (tx_tspec->action == TX_TSPEC_ACTION_NONE && | |
1968 | tx_tspec->admitted_time && | |
1969 | time_after(now, tx_tspec->time_slice_start + HZ)) { | |
1970 | tx_tspec->consumed_tx_time = 0; | |
1971 | tx_tspec->time_slice_start = now; | |
1972 | ||
1973 | if (tx_tspec->downgraded) | |
1974 | tx_tspec->action = | |
1975 | TX_TSPEC_ACTION_STOP_DOWNGRADE; | |
1976 | } | |
1977 | ||
1978 | switch (tx_tspec->action) { | |
1979 | case TX_TSPEC_ACTION_STOP_DOWNGRADE: | |
1980 | /* take the original parameters */ | |
1981 | if (drv_conf_tx(local, sdata, ac, &sdata->tx_conf[ac])) | |
1982 | sdata_err(sdata, | |
1983 | "failed to set TX queue parameters for queue %d\n", | |
1984 | ac); | |
1985 | tx_tspec->action = TX_TSPEC_ACTION_NONE; | |
1986 | tx_tspec->downgraded = false; | |
1987 | ret = true; | |
1988 | break; | |
1989 | case TX_TSPEC_ACTION_DOWNGRADE: | |
1990 | if (time_after(now, tx_tspec->time_slice_start + HZ)) { | |
1991 | tx_tspec->action = TX_TSPEC_ACTION_NONE; | |
1992 | ret = true; | |
1993 | break; | |
1994 | } | |
1995 | /* downgrade next lower non-ACM AC */ | |
1996 | for (non_acm_ac = ac + 1; | |
1997 | non_acm_ac < IEEE80211_NUM_ACS; | |
1998 | non_acm_ac++) | |
1999 | if (!(sdata->wmm_acm & BIT(7 - 2 * non_acm_ac))) | |
2000 | break; | |
93db1d9e JB |
2001 | /* Usually the loop will result in using BK even if it |
2002 | * requires admission control, but such a configuration | |
2003 | * makes no sense and we have to transmit somehow - the | |
2004 | * AC selection does the same thing. | |
2005 | * If we started out trying to downgrade from BK, then | |
2006 | * the extra condition here might be needed. | |
02219b3a | 2007 | */ |
93db1d9e JB |
2008 | if (non_acm_ac >= IEEE80211_NUM_ACS) |
2009 | non_acm_ac = IEEE80211_AC_BK; | |
02219b3a JB |
2010 | if (drv_conf_tx(local, sdata, ac, |
2011 | &sdata->tx_conf[non_acm_ac])) | |
2012 | sdata_err(sdata, | |
2013 | "failed to set TX queue parameters for queue %d\n", | |
2014 | ac); | |
2015 | tx_tspec->action = TX_TSPEC_ACTION_NONE; | |
2016 | ret = true; | |
2017 | schedule_delayed_work(&ifmgd->tx_tspec_wk, | |
2018 | tx_tspec->time_slice_start + HZ - now + 1); | |
2019 | break; | |
2020 | case TX_TSPEC_ACTION_NONE: | |
2021 | /* nothing now */ | |
2022 | break; | |
2023 | } | |
2024 | } | |
2025 | ||
2026 | return ret; | |
2027 | } | |
2028 | ||
2029 | void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata) | |
2030 | { | |
2031 | if (__ieee80211_sta_handle_tspec_ac_params(sdata)) | |
2032 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); | |
2033 | } | |
2034 | ||
2035 | static void ieee80211_sta_handle_tspec_ac_params_wk(struct work_struct *work) | |
2036 | { | |
2037 | struct ieee80211_sub_if_data *sdata; | |
2038 | ||
2039 | sdata = container_of(work, struct ieee80211_sub_if_data, | |
2040 | u.mgd.tx_tspec_wk.work); | |
2041 | ieee80211_sta_handle_tspec_ac_params(sdata); | |
2042 | } | |
2043 | ||
60f8b39c | 2044 | /* MLME */ |
41cbb0f5 LC |
2045 | static bool |
2046 | ieee80211_sta_wmm_params(struct ieee80211_local *local, | |
2047 | struct ieee80211_sub_if_data *sdata, | |
2048 | const u8 *wmm_param, size_t wmm_param_len, | |
2049 | const struct ieee80211_mu_edca_param_set *mu_edca) | |
f0706e82 | 2050 | { |
2ed77ea6 | 2051 | struct ieee80211_tx_queue_params params[IEEE80211_NUM_ACS]; |
4ced3f74 | 2052 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
f0706e82 | 2053 | size_t left; |
2e249fc3 | 2054 | int count, mu_edca_count, ac; |
4a3cb702 JB |
2055 | const u8 *pos; |
2056 | u8 uapsd_queues = 0; | |
f0706e82 | 2057 | |
e1b3ec1a | 2058 | if (!local->ops->conf_tx) |
7d25745d | 2059 | return false; |
e1b3ec1a | 2060 | |
32c5057b | 2061 | if (local->hw.queues < IEEE80211_NUM_ACS) |
7d25745d | 2062 | return false; |
3434fbd3 JB |
2063 | |
2064 | if (!wmm_param) | |
7d25745d | 2065 | return false; |
3434fbd3 | 2066 | |
f0706e82 | 2067 | if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1) |
7d25745d | 2068 | return false; |
ab13315a KV |
2069 | |
2070 | if (ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED) | |
dc41e4d4 | 2071 | uapsd_queues = ifmgd->uapsd_queues; |
ab13315a | 2072 | |
f0706e82 | 2073 | count = wmm_param[6] & 0x0f; |
2e249fc3 ST |
2074 | /* -1 is the initial value of ifmgd->mu_edca_last_param_set. |
2075 | * if mu_edca was preset before and now it disappeared tell | |
2076 | * the driver about it. | |
2077 | */ | |
2078 | mu_edca_count = mu_edca ? mu_edca->mu_qos_info & 0x0f : -1; | |
2079 | if (count == ifmgd->wmm_last_param_set && | |
2080 | mu_edca_count == ifmgd->mu_edca_last_param_set) | |
7d25745d | 2081 | return false; |
46900298 | 2082 | ifmgd->wmm_last_param_set = count; |
2e249fc3 | 2083 | ifmgd->mu_edca_last_param_set = mu_edca_count; |
f0706e82 JB |
2084 | |
2085 | pos = wmm_param + 8; | |
2086 | left = wmm_param_len - 8; | |
2087 | ||
2088 | memset(¶ms, 0, sizeof(params)); | |
2089 | ||
00e96dec | 2090 | sdata->wmm_acm = 0; |
f0706e82 JB |
2091 | for (; left >= 4; left -= 4, pos += 4) { |
2092 | int aci = (pos[0] >> 5) & 0x03; | |
2093 | int acm = (pos[0] >> 4) & 0x01; | |
ab13315a | 2094 | bool uapsd = false; |
f0706e82 JB |
2095 | |
2096 | switch (aci) { | |
0eeb59fe | 2097 | case 1: /* AC_BK */ |
2ed77ea6 | 2098 | ac = IEEE80211_AC_BK; |
988c0f72 | 2099 | if (acm) |
00e96dec | 2100 | sdata->wmm_acm |= BIT(1) | BIT(2); /* BK/- */ |
ab13315a KV |
2101 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) |
2102 | uapsd = true; | |
41cbb0f5 LC |
2103 | params[ac].mu_edca = !!mu_edca; |
2104 | if (mu_edca) | |
2105 | params[ac].mu_edca_param_rec = mu_edca->ac_bk; | |
f0706e82 | 2106 | break; |
0eeb59fe | 2107 | case 2: /* AC_VI */ |
2ed77ea6 | 2108 | ac = IEEE80211_AC_VI; |
988c0f72 | 2109 | if (acm) |
00e96dec | 2110 | sdata->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */ |
ab13315a KV |
2111 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) |
2112 | uapsd = true; | |
41cbb0f5 LC |
2113 | params[ac].mu_edca = !!mu_edca; |
2114 | if (mu_edca) | |
2115 | params[ac].mu_edca_param_rec = mu_edca->ac_vi; | |
f0706e82 | 2116 | break; |
0eeb59fe | 2117 | case 3: /* AC_VO */ |
2ed77ea6 | 2118 | ac = IEEE80211_AC_VO; |
988c0f72 | 2119 | if (acm) |
00e96dec | 2120 | sdata->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */ |
ab13315a KV |
2121 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) |
2122 | uapsd = true; | |
41cbb0f5 LC |
2123 | params[ac].mu_edca = !!mu_edca; |
2124 | if (mu_edca) | |
2125 | params[ac].mu_edca_param_rec = mu_edca->ac_vo; | |
f0706e82 | 2126 | break; |
0eeb59fe | 2127 | case 0: /* AC_BE */ |
f0706e82 | 2128 | default: |
2ed77ea6 | 2129 | ac = IEEE80211_AC_BE; |
988c0f72 | 2130 | if (acm) |
00e96dec | 2131 | sdata->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */ |
ab13315a KV |
2132 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) |
2133 | uapsd = true; | |
41cbb0f5 LC |
2134 | params[ac].mu_edca = !!mu_edca; |
2135 | if (mu_edca) | |
2136 | params[ac].mu_edca_param_rec = mu_edca->ac_be; | |
f0706e82 JB |
2137 | break; |
2138 | } | |
2139 | ||
2ed77ea6 | 2140 | params[ac].aifs = pos[0] & 0x0f; |
730a7550 | 2141 | |
2ed77ea6 | 2142 | if (params[ac].aifs < 2) { |
730a7550 EG |
2143 | sdata_info(sdata, |
2144 | "AP has invalid WMM params (AIFSN=%d for ACI %d), will use 2\n", | |
2ed77ea6 JB |
2145 | params[ac].aifs, aci); |
2146 | params[ac].aifs = 2; | |
730a7550 | 2147 | } |
2ed77ea6 JB |
2148 | params[ac].cw_max = ecw2cw((pos[1] & 0xf0) >> 4); |
2149 | params[ac].cw_min = ecw2cw(pos[1] & 0x0f); | |
2150 | params[ac].txop = get_unaligned_le16(pos + 2); | |
2151 | params[ac].acm = acm; | |
2152 | params[ac].uapsd = uapsd; | |
ab13315a | 2153 | |
911a2648 | 2154 | if (params[ac].cw_min == 0 || |
c470bdc1 | 2155 | params[ac].cw_min > params[ac].cw_max) { |
2ed77ea6 JB |
2156 | sdata_info(sdata, |
2157 | "AP has invalid WMM params (CWmin/max=%d/%d for ACI %d), using defaults\n", | |
2158 | params[ac].cw_min, params[ac].cw_max, aci); | |
2159 | return false; | |
2160 | } | |
e552af05 | 2161 | ieee80211_regulatory_limit_wmm_params(sdata, ¶ms[ac], ac); |
2ed77ea6 JB |
2162 | } |
2163 | ||
05aaa5c9 BN |
2164 | /* WMM specification requires all 4 ACIs. */ |
2165 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { | |
2166 | if (params[ac].cw_min == 0) { | |
2167 | sdata_info(sdata, | |
2168 | "AP has invalid WMM params (missing AC %d), using defaults\n", | |
2169 | ac); | |
2170 | return false; | |
2171 | } | |
2172 | } | |
2173 | ||
2ed77ea6 | 2174 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { |
bdcbd8e0 | 2175 | mlme_dbg(sdata, |
2ed77ea6 JB |
2176 | "WMM AC=%d acm=%d aifs=%d cWmin=%d cWmax=%d txop=%d uapsd=%d, downgraded=%d\n", |
2177 | ac, params[ac].acm, | |
2178 | params[ac].aifs, params[ac].cw_min, params[ac].cw_max, | |
2179 | params[ac].txop, params[ac].uapsd, | |
2180 | ifmgd->tx_tspec[ac].downgraded); | |
2181 | sdata->tx_conf[ac] = params[ac]; | |
2182 | if (!ifmgd->tx_tspec[ac].downgraded && | |
2183 | drv_conf_tx(local, sdata, ac, ¶ms[ac])) | |
bdcbd8e0 | 2184 | sdata_err(sdata, |
2ed77ea6 JB |
2185 | "failed to set TX queue parameters for AC %d\n", |
2186 | ac); | |
f0706e82 | 2187 | } |
e1b3ec1a SG |
2188 | |
2189 | /* enable WMM or activate new settings */ | |
4ced3f74 | 2190 | sdata->vif.bss_conf.qos = true; |
7d25745d | 2191 | return true; |
f0706e82 JB |
2192 | } |
2193 | ||
925e64c3 SG |
2194 | static void __ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) |
2195 | { | |
2196 | lockdep_assert_held(&sdata->local->mtx); | |
2197 | ||
392b9ffb | 2198 | sdata->u.mgd.flags &= ~IEEE80211_STA_CONNECTION_POLL; |
925e64c3 SG |
2199 | ieee80211_run_deferred_scan(sdata->local); |
2200 | } | |
2201 | ||
2202 | static void ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) | |
2203 | { | |
2204 | mutex_lock(&sdata->local->mtx); | |
2205 | __ieee80211_stop_poll(sdata); | |
2206 | mutex_unlock(&sdata->local->mtx); | |
2207 | } | |
2208 | ||
7a5158ef JB |
2209 | static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata, |
2210 | u16 capab, bool erp_valid, u8 erp) | |
5628221c | 2211 | { |
bda3933a | 2212 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; |
21a8e9dd | 2213 | struct ieee80211_supported_band *sband; |
471b3efd | 2214 | u32 changed = 0; |
7a5158ef JB |
2215 | bool use_protection; |
2216 | bool use_short_preamble; | |
2217 | bool use_short_slot; | |
2218 | ||
21a8e9dd MSS |
2219 | sband = ieee80211_get_sband(sdata); |
2220 | if (!sband) | |
2221 | return changed; | |
2222 | ||
7a5158ef JB |
2223 | if (erp_valid) { |
2224 | use_protection = (erp & WLAN_ERP_USE_PROTECTION) != 0; | |
2225 | use_short_preamble = (erp & WLAN_ERP_BARKER_PREAMBLE) == 0; | |
2226 | } else { | |
2227 | use_protection = false; | |
2228 | use_short_preamble = !!(capab & WLAN_CAPABILITY_SHORT_PREAMBLE); | |
2229 | } | |
2230 | ||
2231 | use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME); | |
07c12d61 TM |
2232 | if (sband->band == NL80211_BAND_5GHZ || |
2233 | sband->band == NL80211_BAND_6GHZ) | |
43d35343 | 2234 | use_short_slot = true; |
5628221c | 2235 | |
471b3efd | 2236 | if (use_protection != bss_conf->use_cts_prot) { |
471b3efd JB |
2237 | bss_conf->use_cts_prot = use_protection; |
2238 | changed |= BSS_CHANGED_ERP_CTS_PROT; | |
5628221c | 2239 | } |
7e9ed188 | 2240 | |
d43c7b37 | 2241 | if (use_short_preamble != bss_conf->use_short_preamble) { |
d43c7b37 | 2242 | bss_conf->use_short_preamble = use_short_preamble; |
471b3efd | 2243 | changed |= BSS_CHANGED_ERP_PREAMBLE; |
7e9ed188 | 2244 | } |
d9430a32 | 2245 | |
7a5158ef | 2246 | if (use_short_slot != bss_conf->use_short_slot) { |
7a5158ef JB |
2247 | bss_conf->use_short_slot = use_short_slot; |
2248 | changed |= BSS_CHANGED_ERP_SLOT; | |
50c4afb9 JL |
2249 | } |
2250 | ||
2251 | return changed; | |
2252 | } | |
2253 | ||
f698d856 | 2254 | static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, |
0c1ad2ca | 2255 | struct cfg80211_bss *cbss, |
ae5eb026 | 2256 | u32 bss_info_changed) |
f0706e82 | 2257 | { |
0c1ad2ca | 2258 | struct ieee80211_bss *bss = (void *)cbss->priv; |
471b3efd | 2259 | struct ieee80211_local *local = sdata->local; |
68542962 | 2260 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; |
d6f2da5b | 2261 | |
ae5eb026 | 2262 | bss_info_changed |= BSS_CHANGED_ASSOC; |
77fdaa12 | 2263 | bss_info_changed |= ieee80211_handle_bss_capability(sdata, |
50ae34a2 | 2264 | bss_conf->assoc_capability, bss->has_erp_value, bss->erp_value); |
21c0cbe7 | 2265 | |
7ccc8bd7 | 2266 | sdata->u.mgd.beacon_timeout = usecs_to_jiffies(ieee80211_tu_to_usec( |
59c1ec2b | 2267 | beacon_loss_count * bss_conf->beacon_int)); |
7ccc8bd7 | 2268 | |
5dfad108 JB |
2269 | sdata->u.mgd.associated = true; |
2270 | sdata->u.mgd.assoc_bss = cbss; | |
0c1ad2ca | 2271 | memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN); |
f0706e82 | 2272 | |
e8e4f528 JB |
2273 | ieee80211_check_rate_mask(sdata); |
2274 | ||
17e4ec14 JM |
2275 | sdata->u.mgd.flags |= IEEE80211_STA_RESET_SIGNAL_AVE; |
2276 | ||
b115b972 JD |
2277 | if (sdata->vif.p2p || |
2278 | sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) { | |
9caf0364 | 2279 | const struct cfg80211_bss_ies *ies; |
488dd7b5 | 2280 | |
9caf0364 JB |
2281 | rcu_read_lock(); |
2282 | ies = rcu_dereference(cbss->ies); | |
2283 | if (ies) { | |
9caf0364 JB |
2284 | int ret; |
2285 | ||
2286 | ret = cfg80211_get_p2p_attr( | |
2287 | ies->data, ies->len, | |
2288 | IEEE80211_P2P_ATTR_ABSENCE_NOTICE, | |
67baf663 JD |
2289 | (u8 *) &bss_conf->p2p_noa_attr, |
2290 | sizeof(bss_conf->p2p_noa_attr)); | |
9caf0364 | 2291 | if (ret >= 2) { |
67baf663 JD |
2292 | sdata->u.mgd.p2p_noa_index = |
2293 | bss_conf->p2p_noa_attr.index; | |
9caf0364 | 2294 | bss_info_changed |= BSS_CHANGED_P2P_PS; |
9caf0364 | 2295 | } |
488dd7b5 | 2296 | } |
9caf0364 | 2297 | rcu_read_unlock(); |
488dd7b5 JB |
2298 | } |
2299 | ||
b291ba11 | 2300 | /* just to be sure */ |
925e64c3 | 2301 | ieee80211_stop_poll(sdata); |
b291ba11 | 2302 | |
9ac19a90 | 2303 | ieee80211_led_assoc(local, 1); |
9306102e | 2304 | |
989c6505 | 2305 | if (sdata->u.mgd.have_beacon) { |
826262c3 JB |
2306 | /* |
2307 | * If the AP is buggy we may get here with no DTIM period | |
2308 | * known, so assume it's 1 which is the only safe assumption | |
2309 | * in that case, although if the TIM IE is broken powersave | |
2310 | * probably just won't work at all. | |
2311 | */ | |
2312 | bss_conf->dtim_period = sdata->u.mgd.dtim_period ?: 1; | |
817cee76 | 2313 | bss_conf->beacon_rate = bss->beacon_rate; |
989c6505 | 2314 | bss_info_changed |= BSS_CHANGED_BEACON_INFO; |
826262c3 | 2315 | } else { |
817cee76 | 2316 | bss_conf->beacon_rate = NULL; |
e5b900d2 | 2317 | bss_conf->dtim_period = 0; |
826262c3 | 2318 | } |
e5b900d2 | 2319 | |
68542962 | 2320 | bss_conf->assoc = 1; |
9cef8737 | 2321 | |
a97c13c3 | 2322 | /* Tell the driver to monitor connection quality (if supported) */ |
ea086359 | 2323 | if (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI && |
68542962 | 2324 | bss_conf->cqm_rssi_thold) |
a97c13c3 JO |
2325 | bss_info_changed |= BSS_CHANGED_CQM; |
2326 | ||
68542962 | 2327 | /* Enable ARP filtering */ |
0f19b41e | 2328 | if (bss_conf->arp_addr_cnt) |
68542962 | 2329 | bss_info_changed |= BSS_CHANGED_ARP_FILTER; |
68542962 | 2330 | |
ae5eb026 | 2331 | ieee80211_bss_info_change_notify(sdata, bss_info_changed); |
f0706e82 | 2332 | |
056508dc | 2333 | mutex_lock(&local->iflist_mtx); |
4a733ef1 | 2334 | ieee80211_recalc_ps(local); |
056508dc | 2335 | mutex_unlock(&local->iflist_mtx); |
e0cb686f | 2336 | |
04ecd257 | 2337 | ieee80211_recalc_smps(sdata); |
ab095877 EP |
2338 | ieee80211_recalc_ps_vif(sdata); |
2339 | ||
9ac19a90 | 2340 | netif_carrier_on(sdata->dev); |
f0706e82 JB |
2341 | } |
2342 | ||
e69e95db | 2343 | static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, |
37ad3888 JB |
2344 | u16 stype, u16 reason, bool tx, |
2345 | u8 *frame_buf) | |
aa458d17 | 2346 | { |
46900298 | 2347 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
aa458d17 | 2348 | struct ieee80211_local *local = sdata->local; |
63214f02 | 2349 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; |
3cc5240b | 2350 | u32 changed = 0; |
15fae341 JB |
2351 | struct ieee80211_prep_tx_info info = { |
2352 | .subtype = stype, | |
2353 | }; | |
aa458d17 | 2354 | |
8d61ffa5 | 2355 | sdata_assert_lock(sdata); |
77fdaa12 | 2356 | |
37ad3888 JB |
2357 | if (WARN_ON_ONCE(tx && !frame_buf)) |
2358 | return; | |
2359 | ||
b291ba11 JB |
2360 | if (WARN_ON(!ifmgd->associated)) |
2361 | return; | |
2362 | ||
79543d8e DS |
2363 | ieee80211_stop_poll(sdata); |
2364 | ||
5dfad108 JB |
2365 | ifmgd->associated = false; |
2366 | ifmgd->assoc_bss = NULL; | |
aa458d17 TW |
2367 | netif_carrier_off(sdata->dev); |
2368 | ||
88bc40e8 EP |
2369 | /* |
2370 | * if we want to get out of ps before disassoc (why?) we have | |
2371 | * to do it before sending disassoc, as otherwise the null-packet | |
2372 | * won't be valid. | |
2373 | */ | |
2374 | if (local->hw.conf.flags & IEEE80211_CONF_PS) { | |
2375 | local->hw.conf.flags &= ~IEEE80211_CONF_PS; | |
2376 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
2377 | } | |
2378 | local->ps_sdata = NULL; | |
2379 | ||
ab095877 EP |
2380 | /* disable per-vif ps */ |
2381 | ieee80211_recalc_ps_vif(sdata); | |
2382 | ||
14f2ae83 EG |
2383 | /* make sure ongoing transmission finishes */ |
2384 | synchronize_net(); | |
2385 | ||
3b24f4c6 EG |
2386 | /* |
2387 | * drop any frame before deauth/disassoc, this can be data or | |
2388 | * management frame. Since we are disconnecting, we should not | |
2389 | * insist sending these frames which can take time and delay | |
2390 | * the disconnection and possible the roaming. | |
2391 | */ | |
f823981e | 2392 | if (tx) |
3b24f4c6 | 2393 | ieee80211_flush_queues(local, sdata, true); |
f823981e | 2394 | |
37ad3888 | 2395 | /* deauthenticate/disassociate now */ |
94ba9271 | 2396 | if (tx || frame_buf) { |
94ba9271 IP |
2397 | /* |
2398 | * In multi channel scenarios guarantee that the virtual | |
2399 | * interface is granted immediate airtime to transmit the | |
2400 | * deauthentication frame by calling mgd_prepare_tx, if the | |
2401 | * driver requested so. | |
2402 | */ | |
2403 | if (ieee80211_hw_check(&local->hw, DEAUTH_NEED_MGD_TX_PREP) && | |
15fae341 JB |
2404 | !ifmgd->have_beacon) { |
2405 | drv_mgd_prepare_tx(sdata->local, sdata, &info); | |
2406 | } | |
94ba9271 | 2407 | |
4b08d1b6 JB |
2408 | ieee80211_send_deauth_disassoc(sdata, ifmgd->bssid, |
2409 | ifmgd->bssid, stype, reason, | |
2410 | tx, frame_buf); | |
94ba9271 | 2411 | } |
37ad3888 | 2412 | |
3b24f4c6 | 2413 | /* flush out frame - make sure the deauth was actually sent */ |
37ad3888 | 2414 | if (tx) |
3b24f4c6 | 2415 | ieee80211_flush_queues(local, sdata, false); |
37ad3888 | 2416 | |
15fae341 JB |
2417 | drv_mgd_complete_tx(sdata->local, sdata, &info); |
2418 | ||
88a9e31c | 2419 | /* clear bssid only after building the needed mgmt frames */ |
c84a67a2 | 2420 | eth_zero_addr(ifmgd->bssid); |
88a9e31c | 2421 | |
b0140fda WG |
2422 | sdata->vif.bss_conf.ssid_len = 0; |
2423 | ||
37ad3888 | 2424 | /* remove AP and TDLS peers */ |
d34ba216 | 2425 | sta_info_flush(sdata); |
37ad3888 JB |
2426 | |
2427 | /* finally reset all BSS / config parameters */ | |
f5e5bf25 TW |
2428 | changed |= ieee80211_reset_erp_info(sdata); |
2429 | ||
f5e5bf25 | 2430 | ieee80211_led_assoc(local, 0); |
ae5eb026 JB |
2431 | changed |= BSS_CHANGED_ASSOC; |
2432 | sdata->vif.bss_conf.assoc = false; | |
f5e5bf25 | 2433 | |
67baf663 JD |
2434 | ifmgd->p2p_noa_index = -1; |
2435 | memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, | |
2436 | sizeof(sdata->vif.bss_conf.p2p_noa_attr)); | |
488dd7b5 | 2437 | |
dd5ecfea | 2438 | /* on the next assoc, re-program HT/VHT parameters */ |
ef96a842 BG |
2439 | memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa)); |
2440 | memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask)); | |
dd5ecfea JB |
2441 | memset(&ifmgd->vht_capa, 0, sizeof(ifmgd->vht_capa)); |
2442 | memset(&ifmgd->vht_capa_mask, 0, sizeof(ifmgd->vht_capa_mask)); | |
23a1f8d4 SS |
2443 | |
2444 | /* reset MU-MIMO ownership and group data */ | |
2445 | memset(sdata->vif.bss_conf.mu_group.membership, 0, | |
2446 | sizeof(sdata->vif.bss_conf.mu_group.membership)); | |
2447 | memset(sdata->vif.bss_conf.mu_group.position, 0, | |
2448 | sizeof(sdata->vif.bss_conf.mu_group.position)); | |
2449 | changed |= BSS_CHANGED_MU_GROUPS; | |
b5a33d52 | 2450 | sdata->vif.mu_mimo_owner = false; |
413ad50a | 2451 | |
1ea6f9c0 | 2452 | sdata->ap_power_level = IEEE80211_UNSET_POWER_LEVEL; |
a8302de9 | 2453 | |
520eb820 KV |
2454 | del_timer_sync(&local->dynamic_ps_timer); |
2455 | cancel_work_sync(&local->dynamic_ps_enable_work); | |
2456 | ||
68542962 | 2457 | /* Disable ARP filtering */ |
0f19b41e | 2458 | if (sdata->vif.bss_conf.arp_addr_cnt) |
68542962 | 2459 | changed |= BSS_CHANGED_ARP_FILTER; |
68542962 | 2460 | |
3abead59 JB |
2461 | sdata->vif.bss_conf.qos = false; |
2462 | changed |= BSS_CHANGED_QOS; | |
2463 | ||
0aaffa9b JB |
2464 | /* The BSSID (not really interesting) and HT changed */ |
2465 | changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT; | |
ae5eb026 | 2466 | ieee80211_bss_info_change_notify(sdata, changed); |
8e268e47 | 2467 | |
3abead59 | 2468 | /* disassociated - set to defaults now */ |
cec66283 | 2469 | ieee80211_set_wmm_default(sdata, false, false); |
3abead59 | 2470 | |
b9dcf712 JB |
2471 | del_timer_sync(&sdata->u.mgd.conn_mon_timer); |
2472 | del_timer_sync(&sdata->u.mgd.bcn_mon_timer); | |
2473 | del_timer_sync(&sdata->u.mgd.timer); | |
2474 | del_timer_sync(&sdata->u.mgd.chswitch_timer); | |
2d9957cc | 2475 | |
826262c3 | 2476 | sdata->vif.bss_conf.dtim_period = 0; |
817cee76 AB |
2477 | sdata->vif.bss_conf.beacon_rate = NULL; |
2478 | ||
989c6505 | 2479 | ifmgd->have_beacon = false; |
826262c3 | 2480 | |
028e8da0 | 2481 | ifmgd->flags = 0; |
34a3740d | 2482 | mutex_lock(&local->mtx); |
028e8da0 | 2483 | ieee80211_vif_release_channel(sdata); |
59af6928 MK |
2484 | |
2485 | sdata->vif.csa_active = false; | |
0c21e632 | 2486 | ifmgd->csa_waiting_bcn = false; |
f84eaa10 | 2487 | ifmgd->csa_ignored_same_chan = false; |
a46992b4 LC |
2488 | if (sdata->csa_block_tx) { |
2489 | ieee80211_wake_vif_queues(local, sdata, | |
2490 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
2491 | sdata->csa_block_tx = false; | |
2492 | } | |
34a3740d | 2493 | mutex_unlock(&local->mtx); |
2475b1cc | 2494 | |
02219b3a JB |
2495 | /* existing TX TSPEC sessions no longer exist */ |
2496 | memset(ifmgd->tx_tspec, 0, sizeof(ifmgd->tx_tspec)); | |
2497 | cancel_delayed_work_sync(&ifmgd->tx_tspec_wk); | |
2498 | ||
2475b1cc | 2499 | sdata->encrypt_headroom = IEEE80211_ENCRYPT_HEADROOM; |
63214f02 WG |
2500 | |
2501 | bss_conf->pwr_reduction = 0; | |
2502 | bss_conf->tx_pwr_env_num = 0; | |
2503 | memset(bss_conf->tx_pwr_env, 0, sizeof(bss_conf->tx_pwr_env)); | |
aa458d17 | 2504 | } |
f0706e82 | 2505 | |
4e5ff376 FF |
2506 | static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata) |
2507 | { | |
2508 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
133d40f9 | 2509 | struct ieee80211_local *local = sdata->local; |
4e5ff376 | 2510 | |
133d40f9 | 2511 | mutex_lock(&local->mtx); |
392b9ffb SG |
2512 | if (!(ifmgd->flags & IEEE80211_STA_CONNECTION_POLL)) |
2513 | goto out; | |
4e5ff376 | 2514 | |
925e64c3 | 2515 | __ieee80211_stop_poll(sdata); |
133d40f9 SG |
2516 | |
2517 | mutex_lock(&local->iflist_mtx); | |
4a733ef1 | 2518 | ieee80211_recalc_ps(local); |
133d40f9 | 2519 | mutex_unlock(&local->iflist_mtx); |
4e5ff376 | 2520 | |
30686bf7 | 2521 | if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) |
133d40f9 | 2522 | goto out; |
4e5ff376 FF |
2523 | |
2524 | /* | |
2525 | * We've received a probe response, but are not sure whether | |
2526 | * we have or will be receiving any beacons or data, so let's | |
2527 | * schedule the timers again, just in case. | |
2528 | */ | |
2529 | ieee80211_sta_reset_beacon_monitor(sdata); | |
2530 | ||
2531 | mod_timer(&ifmgd->conn_mon_timer, | |
2532 | round_jiffies_up(jiffies + | |
2533 | IEEE80211_CONNECTION_IDLE_TIME)); | |
133d40f9 | 2534 | out: |
133d40f9 | 2535 | mutex_unlock(&local->mtx); |
4e5ff376 FF |
2536 | } |
2537 | ||
02219b3a JB |
2538 | static void ieee80211_sta_tx_wmm_ac_notify(struct ieee80211_sub_if_data *sdata, |
2539 | struct ieee80211_hdr *hdr, | |
2540 | u16 tx_time) | |
2541 | { | |
2542 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
d5e568c3 JB |
2543 | u16 tid; |
2544 | int ac; | |
2545 | struct ieee80211_sta_tx_tspec *tx_tspec; | |
02219b3a JB |
2546 | unsigned long now = jiffies; |
2547 | ||
d5e568c3 JB |
2548 | if (!ieee80211_is_data_qos(hdr->frame_control)) |
2549 | return; | |
2550 | ||
2551 | tid = ieee80211_get_tid(hdr); | |
2552 | ac = ieee80211_ac_from_tid(tid); | |
2553 | tx_tspec = &ifmgd->tx_tspec[ac]; | |
2554 | ||
02219b3a JB |
2555 | if (likely(!tx_tspec->admitted_time)) |
2556 | return; | |
2557 | ||
2558 | if (time_after(now, tx_tspec->time_slice_start + HZ)) { | |
2559 | tx_tspec->consumed_tx_time = 0; | |
2560 | tx_tspec->time_slice_start = now; | |
2561 | ||
2562 | if (tx_tspec->downgraded) { | |
2563 | tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; | |
2564 | schedule_delayed_work(&ifmgd->tx_tspec_wk, 0); | |
2565 | } | |
2566 | } | |
2567 | ||
2568 | if (tx_tspec->downgraded) | |
2569 | return; | |
2570 | ||
2571 | tx_tspec->consumed_tx_time += tx_time; | |
2572 | ||
2573 | if (tx_tspec->consumed_tx_time >= tx_tspec->admitted_time) { | |
2574 | tx_tspec->downgraded = true; | |
2575 | tx_tspec->action = TX_TSPEC_ACTION_DOWNGRADE; | |
2576 | schedule_delayed_work(&ifmgd->tx_tspec_wk, 0); | |
2577 | } | |
2578 | } | |
2579 | ||
4e5ff376 | 2580 | void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, |
02219b3a | 2581 | struct ieee80211_hdr *hdr, bool ack, u16 tx_time) |
4e5ff376 | 2582 | { |
02219b3a JB |
2583 | ieee80211_sta_tx_wmm_ac_notify(sdata, hdr, tx_time); |
2584 | ||
9abf4e49 FF |
2585 | if (!ieee80211_is_any_nullfunc(hdr->frame_control) || |
2586 | !sdata->u.mgd.probe_send_count) | |
cab1c7fd | 2587 | return; |
cab1c7fd | 2588 | |
e3f25908 FF |
2589 | if (ack) |
2590 | sdata->u.mgd.probe_send_count = 0; | |
2591 | else | |
9abf4e49 FF |
2592 | sdata->u.mgd.nullfunc_failed = true; |
2593 | ieee80211_queue_work(&sdata->local->hw, &sdata->work); | |
4e5ff376 FF |
2594 | } |
2595 | ||
45ad6834 JB |
2596 | static void ieee80211_mlme_send_probe_req(struct ieee80211_sub_if_data *sdata, |
2597 | const u8 *src, const u8 *dst, | |
2598 | const u8 *ssid, size_t ssid_len, | |
2599 | struct ieee80211_channel *channel) | |
2600 | { | |
2601 | struct sk_buff *skb; | |
2602 | ||
2603 | skb = ieee80211_build_probe_req(sdata, src, dst, (u32)-1, channel, | |
2604 | ssid, ssid_len, NULL, 0, | |
2605 | IEEE80211_PROBE_FLAG_DIRECTED); | |
2606 | if (skb) | |
2607 | ieee80211_tx_skb(sdata, skb); | |
2608 | } | |
2609 | ||
a43abf29 ML |
2610 | static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) |
2611 | { | |
2612 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
c8fe4b0b | 2613 | u8 *dst = ifmgd->bssid; |
180205bd | 2614 | u8 unicast_limit = max(1, max_probe_tries - 3); |
49ddf8e6 | 2615 | struct sta_info *sta; |
f01a067d LR |
2616 | |
2617 | /* | |
2618 | * Try sending broadcast probe requests for the last three | |
2619 | * probe requests after the first ones failed since some | |
2620 | * buggy APs only support broadcast probe requests. | |
2621 | */ | |
2622 | if (ifmgd->probe_send_count >= unicast_limit) | |
2623 | dst = NULL; | |
a43abf29 | 2624 | |
4e5ff376 FF |
2625 | /* |
2626 | * When the hardware reports an accurate Tx ACK status, it's | |
2627 | * better to send a nullfunc frame instead of a probe request, | |
2628 | * as it will kick us off the AP quickly if we aren't associated | |
2629 | * anymore. The timeout will be reset if the frame is ACKed by | |
2630 | * the AP. | |
2631 | */ | |
992e68bf SD |
2632 | ifmgd->probe_send_count++; |
2633 | ||
49ddf8e6 JB |
2634 | if (dst) { |
2635 | mutex_lock(&sdata->local->sta_mtx); | |
2636 | sta = sta_info_get(sdata, dst); | |
2637 | if (!WARN_ON(!sta)) | |
2638 | ieee80211_check_fast_rx(sta); | |
2639 | mutex_unlock(&sdata->local->sta_mtx); | |
2640 | } | |
2641 | ||
30686bf7 | 2642 | if (ieee80211_hw_check(&sdata->local->hw, REPORTS_TX_ACK_STATUS)) { |
04ac3c0e | 2643 | ifmgd->nullfunc_failed = false; |
2832943c | 2644 | ieee80211_send_nullfunc(sdata->local, sdata, false); |
04ac3c0e | 2645 | } else { |
45ad6834 | 2646 | ieee80211_mlme_send_probe_req(sdata, sdata->vif.addr, dst, |
926101d2 JB |
2647 | sdata->vif.bss_conf.ssid, |
2648 | sdata->vif.bss_conf.ssid_len, | |
5dfad108 | 2649 | ifmgd->assoc_bss->channel); |
4e5ff376 | 2650 | } |
a43abf29 | 2651 | |
180205bd | 2652 | ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms); |
8d61ffa5 | 2653 | run_again(sdata, ifmgd->probe_timeout); |
a43abf29 ML |
2654 | } |
2655 | ||
b291ba11 JB |
2656 | static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, |
2657 | bool beacon) | |
04de8381 | 2658 | { |
04de8381 | 2659 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
b291ba11 | 2660 | bool already = false; |
34bfc411 | 2661 | |
9607e6b6 | 2662 | if (!ieee80211_sdata_running(sdata)) |
0e2b6286 JB |
2663 | return; |
2664 | ||
8d61ffa5 | 2665 | sdata_lock(sdata); |
77fdaa12 JB |
2666 | |
2667 | if (!ifmgd->associated) | |
2668 | goto out; | |
2669 | ||
133d40f9 SG |
2670 | mutex_lock(&sdata->local->mtx); |
2671 | ||
2672 | if (sdata->local->tmp_channel || sdata->local->scanning) { | |
2673 | mutex_unlock(&sdata->local->mtx); | |
2674 | goto out; | |
2675 | } | |
2676 | ||
b33fb28c LP |
2677 | if (sdata->local->suspending) { |
2678 | /* reschedule after resume */ | |
2679 | mutex_unlock(&sdata->local->mtx); | |
2680 | ieee80211_reset_ap_probe(sdata); | |
2681 | goto out; | |
2682 | } | |
2683 | ||
a13fbe54 | 2684 | if (beacon) { |
bdcbd8e0 | 2685 | mlme_dbg_ratelimited(sdata, |
59c1ec2b BG |
2686 | "detected beacon loss from AP (missed %d beacons) - probing\n", |
2687 | beacon_loss_count); | |
bdcbd8e0 | 2688 | |
98f03342 | 2689 | ieee80211_cqm_beacon_loss_notify(&sdata->vif, GFP_KERNEL); |
a13fbe54 | 2690 | } |
04de8381 | 2691 | |
b291ba11 JB |
2692 | /* |
2693 | * The driver/our work has already reported this event or the | |
2694 | * connection monitoring has kicked in and we have already sent | |
2695 | * a probe request. Or maybe the AP died and the driver keeps | |
2696 | * reporting until we disassociate... | |
2697 | * | |
2698 | * In either case we have to ignore the current call to this | |
2699 | * function (except for setting the correct probe reason bit) | |
2700 | * because otherwise we would reset the timer every time and | |
2701 | * never check whether we received a probe response! | |
2702 | */ | |
392b9ffb | 2703 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) |
b291ba11 JB |
2704 | already = true; |
2705 | ||
12b5f34d EP |
2706 | ifmgd->flags |= IEEE80211_STA_CONNECTION_POLL; |
2707 | ||
133d40f9 SG |
2708 | mutex_unlock(&sdata->local->mtx); |
2709 | ||
b291ba11 JB |
2710 | if (already) |
2711 | goto out; | |
2712 | ||
4e751843 | 2713 | mutex_lock(&sdata->local->iflist_mtx); |
4a733ef1 | 2714 | ieee80211_recalc_ps(sdata->local); |
4e751843 JB |
2715 | mutex_unlock(&sdata->local->iflist_mtx); |
2716 | ||
a43abf29 ML |
2717 | ifmgd->probe_send_count = 0; |
2718 | ieee80211_mgd_probe_ap_send(sdata); | |
77fdaa12 | 2719 | out: |
8d61ffa5 | 2720 | sdata_unlock(sdata); |
04de8381 KV |
2721 | } |
2722 | ||
a619a4c0 JO |
2723 | struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, |
2724 | struct ieee80211_vif *vif) | |
2725 | { | |
2726 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
2727 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
d9b3b28b | 2728 | struct cfg80211_bss *cbss; |
a619a4c0 | 2729 | struct sk_buff *skb; |
f2622138 | 2730 | const struct element *ssid; |
88c868c4 | 2731 | int ssid_len; |
a619a4c0 JO |
2732 | |
2733 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
2734 | return NULL; | |
2735 | ||
8d61ffa5 | 2736 | sdata_assert_lock(sdata); |
a619a4c0 | 2737 | |
d9b3b28b | 2738 | if (ifmgd->associated) |
5dfad108 | 2739 | cbss = ifmgd->assoc_bss; |
d9b3b28b EP |
2740 | else if (ifmgd->auth_data) |
2741 | cbss = ifmgd->auth_data->bss; | |
2742 | else if (ifmgd->assoc_data) | |
2743 | cbss = ifmgd->assoc_data->bss; | |
2744 | else | |
a619a4c0 JO |
2745 | return NULL; |
2746 | ||
9caf0364 | 2747 | rcu_read_lock(); |
f2622138 JB |
2748 | ssid = ieee80211_bss_get_elem(cbss, WLAN_EID_SSID); |
2749 | if (WARN_ONCE(!ssid || ssid->datalen > IEEE80211_MAX_SSID_LEN, | |
2750 | "invalid SSID element (len=%d)", | |
2751 | ssid ? ssid->datalen : -1)) | |
88c868c4 SG |
2752 | ssid_len = 0; |
2753 | else | |
f2622138 | 2754 | ssid_len = ssid->datalen; |
88c868c4 | 2755 | |
a344d677 | 2756 | skb = ieee80211_build_probe_req(sdata, sdata->vif.addr, cbss->bssid, |
55de908a | 2757 | (u32) -1, cbss->channel, |
f2622138 | 2758 | ssid->data, ssid_len, |
00387f32 | 2759 | NULL, 0, IEEE80211_PROBE_FLAG_DIRECTED); |
9caf0364 | 2760 | rcu_read_unlock(); |
a619a4c0 JO |
2761 | |
2762 | return skb; | |
2763 | } | |
2764 | EXPORT_SYMBOL(ieee80211_ap_probereq_get); | |
2765 | ||
a90faa9d EG |
2766 | static void ieee80211_report_disconnect(struct ieee80211_sub_if_data *sdata, |
2767 | const u8 *buf, size_t len, bool tx, | |
3f8a39ff | 2768 | u16 reason, bool reconnect) |
a90faa9d EG |
2769 | { |
2770 | struct ieee80211_event event = { | |
2771 | .type = MLME_EVENT, | |
2772 | .u.mlme.data = tx ? DEAUTH_TX_EVENT : DEAUTH_RX_EVENT, | |
2773 | .u.mlme.reason = reason, | |
2774 | }; | |
2775 | ||
2776 | if (tx) | |
3f8a39ff | 2777 | cfg80211_tx_mlme_mgmt(sdata->dev, buf, len, reconnect); |
a90faa9d EG |
2778 | else |
2779 | cfg80211_rx_mlme_mgmt(sdata->dev, buf, len); | |
2780 | ||
2781 | drv_event_callback(sdata->local, sdata, &event); | |
2782 | } | |
2783 | ||
eef9e54c | 2784 | static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) |
1e4dcd01 | 2785 | { |
59af6928 | 2786 | struct ieee80211_local *local = sdata->local; |
1e4dcd01 | 2787 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
6ae16775 | 2788 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
6c18b27d | 2789 | bool tx; |
1e4dcd01 | 2790 | |
8d61ffa5 | 2791 | sdata_lock(sdata); |
1e4dcd01 | 2792 | if (!ifmgd->associated) { |
8d61ffa5 | 2793 | sdata_unlock(sdata); |
1e4dcd01 JO |
2794 | return; |
2795 | } | |
2796 | ||
6c18b27d EG |
2797 | tx = !sdata->csa_block_tx; |
2798 | ||
3f8a39ff JB |
2799 | if (!ifmgd->driver_disconnect) { |
2800 | /* | |
2801 | * AP is probably out of range (or not reachable for another | |
2802 | * reason) so remove the bss struct for that AP. | |
2803 | */ | |
5dfad108 | 2804 | cfg80211_unlink_bss(local->hw.wiphy, ifmgd->assoc_bss); |
3f8a39ff | 2805 | } |
20eb7ea9 | 2806 | |
37ad3888 | 2807 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
3f8a39ff JB |
2808 | ifmgd->driver_disconnect ? |
2809 | WLAN_REASON_DEAUTH_LEAVING : | |
2810 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, | |
6c18b27d | 2811 | tx, frame_buf); |
59af6928 | 2812 | mutex_lock(&local->mtx); |
7578d575 | 2813 | sdata->vif.csa_active = false; |
0c21e632 | 2814 | ifmgd->csa_waiting_bcn = false; |
a46992b4 LC |
2815 | if (sdata->csa_block_tx) { |
2816 | ieee80211_wake_vif_queues(local, sdata, | |
2817 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
2818 | sdata->csa_block_tx = false; | |
2819 | } | |
59af6928 | 2820 | mutex_unlock(&local->mtx); |
7da7cc1d | 2821 | |
6c18b27d | 2822 | ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), tx, |
3f8a39ff JB |
2823 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, |
2824 | ifmgd->reconnect); | |
2825 | ifmgd->reconnect = false; | |
a90faa9d | 2826 | |
8d61ffa5 | 2827 | sdata_unlock(sdata); |
1e4dcd01 JO |
2828 | } |
2829 | ||
cc74c0c7 | 2830 | static void ieee80211_beacon_connection_loss_work(struct work_struct *work) |
b291ba11 JB |
2831 | { |
2832 | struct ieee80211_sub_if_data *sdata = | |
2833 | container_of(work, struct ieee80211_sub_if_data, | |
1e4dcd01 | 2834 | u.mgd.beacon_connection_loss_work); |
a85e1d55 | 2835 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
a85e1d55 | 2836 | |
976bd9ef JB |
2837 | if (ifmgd->associated) |
2838 | ifmgd->beacon_loss_count++; | |
b291ba11 | 2839 | |
682bd38b | 2840 | if (ifmgd->connection_loss) { |
882a7c69 JB |
2841 | sdata_info(sdata, "Connection to AP %pM lost\n", |
2842 | ifmgd->bssid); | |
eef9e54c | 2843 | __ieee80211_disconnect(sdata); |
3f8a39ff JB |
2844 | ifmgd->connection_loss = false; |
2845 | } else if (ifmgd->driver_disconnect) { | |
2846 | sdata_info(sdata, | |
2847 | "Driver requested disconnection from AP %pM\n", | |
2848 | ifmgd->bssid); | |
2849 | __ieee80211_disconnect(sdata); | |
2850 | ifmgd->driver_disconnect = false; | |
882a7c69 | 2851 | } else { |
1e4dcd01 | 2852 | ieee80211_mgd_probe_ap(sdata, true); |
882a7c69 JB |
2853 | } |
2854 | } | |
2855 | ||
2856 | static void ieee80211_csa_connection_drop_work(struct work_struct *work) | |
2857 | { | |
2858 | struct ieee80211_sub_if_data *sdata = | |
2859 | container_of(work, struct ieee80211_sub_if_data, | |
2860 | u.mgd.csa_connection_drop_work); | |
2861 | ||
eef9e54c | 2862 | __ieee80211_disconnect(sdata); |
b291ba11 JB |
2863 | } |
2864 | ||
04de8381 KV |
2865 | void ieee80211_beacon_loss(struct ieee80211_vif *vif) |
2866 | { | |
2867 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
1e4dcd01 | 2868 | struct ieee80211_hw *hw = &sdata->local->hw; |
04de8381 | 2869 | |
b5878a2d JB |
2870 | trace_api_beacon_loss(sdata); |
2871 | ||
682bd38b | 2872 | sdata->u.mgd.connection_loss = false; |
1e4dcd01 | 2873 | ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); |
04de8381 KV |
2874 | } |
2875 | EXPORT_SYMBOL(ieee80211_beacon_loss); | |
2876 | ||
1e4dcd01 JO |
2877 | void ieee80211_connection_loss(struct ieee80211_vif *vif) |
2878 | { | |
2879 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
2880 | struct ieee80211_hw *hw = &sdata->local->hw; | |
2881 | ||
b5878a2d JB |
2882 | trace_api_connection_loss(sdata); |
2883 | ||
682bd38b | 2884 | sdata->u.mgd.connection_loss = true; |
1e4dcd01 JO |
2885 | ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); |
2886 | } | |
2887 | EXPORT_SYMBOL(ieee80211_connection_loss); | |
2888 | ||
3f8a39ff JB |
2889 | void ieee80211_disconnect(struct ieee80211_vif *vif, bool reconnect) |
2890 | { | |
2891 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
2892 | struct ieee80211_hw *hw = &sdata->local->hw; | |
2893 | ||
2894 | trace_api_disconnect(sdata, reconnect); | |
2895 | ||
2896 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
2897 | return; | |
2898 | ||
2899 | sdata->u.mgd.driver_disconnect = true; | |
2900 | sdata->u.mgd.reconnect = reconnect; | |
2901 | ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); | |
2902 | } | |
2903 | EXPORT_SYMBOL(ieee80211_disconnect); | |
1e4dcd01 | 2904 | |
66e67e41 JB |
2905 | static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, |
2906 | bool assoc) | |
2907 | { | |
2908 | struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data; | |
2909 | ||
8d61ffa5 | 2910 | sdata_assert_lock(sdata); |
66e67e41 | 2911 | |
66e67e41 | 2912 | if (!assoc) { |
c1e140bf EG |
2913 | /* |
2914 | * we are not authenticated yet, the only timer that could be | |
2915 | * running is the timeout for the authentication response which | |
2916 | * which is not relevant anymore. | |
2917 | */ | |
2918 | del_timer_sync(&sdata->u.mgd.timer); | |
66e67e41 JB |
2919 | sta_info_destroy_addr(sdata, auth_data->bss->bssid); |
2920 | ||
c84a67a2 | 2921 | eth_zero_addr(sdata->u.mgd.bssid); |
66e67e41 | 2922 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID); |
028e8da0 | 2923 | sdata->u.mgd.flags = 0; |
34a3740d | 2924 | mutex_lock(&sdata->local->mtx); |
55de908a | 2925 | ieee80211_vif_release_channel(sdata); |
34a3740d | 2926 | mutex_unlock(&sdata->local->mtx); |
66e67e41 JB |
2927 | } |
2928 | ||
5b112d3d | 2929 | cfg80211_put_bss(sdata->local->hw.wiphy, auth_data->bss); |
66e67e41 JB |
2930 | kfree(auth_data); |
2931 | sdata->u.mgd.auth_data = NULL; | |
2932 | } | |
2933 | ||
c9c99f89 | 2934 | static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata, |
e6f462df | 2935 | bool assoc, bool abandon) |
c9c99f89 JB |
2936 | { |
2937 | struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; | |
2938 | ||
2939 | sdata_assert_lock(sdata); | |
2940 | ||
2941 | if (!assoc) { | |
2942 | /* | |
2943 | * we are not associated yet, the only timer that could be | |
2944 | * running is the timeout for the association response which | |
2945 | * which is not relevant anymore. | |
2946 | */ | |
2947 | del_timer_sync(&sdata->u.mgd.timer); | |
2948 | sta_info_destroy_addr(sdata, assoc_data->bss->bssid); | |
2949 | ||
2950 | eth_zero_addr(sdata->u.mgd.bssid); | |
2951 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID); | |
2952 | sdata->u.mgd.flags = 0; | |
b5a33d52 SS |
2953 | sdata->vif.mu_mimo_owner = false; |
2954 | ||
c9c99f89 JB |
2955 | mutex_lock(&sdata->local->mtx); |
2956 | ieee80211_vif_release_channel(sdata); | |
2957 | mutex_unlock(&sdata->local->mtx); | |
e6f462df JB |
2958 | |
2959 | if (abandon) | |
2960 | cfg80211_abandon_assoc(sdata->dev, assoc_data->bss); | |
c9c99f89 JB |
2961 | } |
2962 | ||
2963 | kfree(assoc_data); | |
2964 | sdata->u.mgd.assoc_data = NULL; | |
2965 | } | |
2966 | ||
66e67e41 JB |
2967 | static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, |
2968 | struct ieee80211_mgmt *mgmt, size_t len) | |
2969 | { | |
1672c0e3 | 2970 | struct ieee80211_local *local = sdata->local; |
66e67e41 | 2971 | struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data; |
49a765d6 | 2972 | const struct element *challenge; |
66e67e41 | 2973 | u8 *pos; |
1672c0e3 | 2974 | u32 tx_flags = 0; |
15fae341 JB |
2975 | struct ieee80211_prep_tx_info info = { |
2976 | .subtype = IEEE80211_STYPE_AUTH, | |
2977 | }; | |
66e67e41 JB |
2978 | |
2979 | pos = mgmt->u.auth.variable; | |
49a765d6 JB |
2980 | challenge = cfg80211_find_elem(WLAN_EID_CHALLENGE, pos, |
2981 | len - (pos - (u8 *)mgmt)); | |
2982 | if (!challenge) | |
66e67e41 JB |
2983 | return; |
2984 | auth_data->expected_transaction = 4; | |
15fae341 | 2985 | drv_mgd_prepare_tx(sdata->local, sdata, &info); |
30686bf7 | 2986 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
1672c0e3 JB |
2987 | tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | |
2988 | IEEE80211_TX_INTFL_MLME_CONN_TX; | |
700e8ea6 | 2989 | ieee80211_send_auth(sdata, 3, auth_data->algorithm, 0, |
49a765d6 JB |
2990 | (void *)challenge, |
2991 | challenge->datalen + sizeof(*challenge), | |
66e67e41 JB |
2992 | auth_data->bss->bssid, auth_data->bss->bssid, |
2993 | auth_data->key, auth_data->key_len, | |
1672c0e3 | 2994 | auth_data->key_idx, tx_flags); |
66e67e41 JB |
2995 | } |
2996 | ||
fc107a93 JM |
2997 | static bool ieee80211_mark_sta_auth(struct ieee80211_sub_if_data *sdata, |
2998 | const u8 *bssid) | |
2999 | { | |
efb543e6 | 3000 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
fc107a93 | 3001 | struct sta_info *sta; |
33483a6b | 3002 | bool result = true; |
fc107a93 | 3003 | |
efb543e6 JM |
3004 | sdata_info(sdata, "authenticated\n"); |
3005 | ifmgd->auth_data->done = true; | |
3006 | ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC; | |
3007 | ifmgd->auth_data->timeout_started = true; | |
3008 | run_again(sdata, ifmgd->auth_data->timeout); | |
3009 | ||
fc107a93 JM |
3010 | /* move station state to auth */ |
3011 | mutex_lock(&sdata->local->sta_mtx); | |
3012 | sta = sta_info_get(sdata, bssid); | |
3013 | if (!sta) { | |
3014 | WARN_ONCE(1, "%s: STA %pM not found", sdata->name, bssid); | |
33483a6b WY |
3015 | result = false; |
3016 | goto out; | |
fc107a93 JM |
3017 | } |
3018 | if (sta_info_move_state(sta, IEEE80211_STA_AUTH)) { | |
3019 | sdata_info(sdata, "failed moving %pM to auth\n", bssid); | |
33483a6b WY |
3020 | result = false; |
3021 | goto out; | |
fc107a93 | 3022 | } |
fc107a93 | 3023 | |
33483a6b WY |
3024 | out: |
3025 | mutex_unlock(&sdata->local->sta_mtx); | |
3026 | return result; | |
fc107a93 JM |
3027 | } |
3028 | ||
8d61ffa5 JB |
3029 | static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, |
3030 | struct ieee80211_mgmt *mgmt, size_t len) | |
66e67e41 JB |
3031 | { |
3032 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
3033 | u8 bssid[ETH_ALEN]; | |
3034 | u16 auth_alg, auth_transaction, status_code; | |
a9409093 EG |
3035 | struct ieee80211_event event = { |
3036 | .type = MLME_EVENT, | |
3037 | .u.mlme.data = AUTH_EVENT, | |
3038 | }; | |
15fae341 JB |
3039 | struct ieee80211_prep_tx_info info = { |
3040 | .subtype = IEEE80211_STYPE_AUTH, | |
3041 | }; | |
66e67e41 | 3042 | |
8d61ffa5 | 3043 | sdata_assert_lock(sdata); |
66e67e41 JB |
3044 | |
3045 | if (len < 24 + 6) | |
8d61ffa5 | 3046 | return; |
66e67e41 JB |
3047 | |
3048 | if (!ifmgd->auth_data || ifmgd->auth_data->done) | |
8d61ffa5 | 3049 | return; |
66e67e41 JB |
3050 | |
3051 | memcpy(bssid, ifmgd->auth_data->bss->bssid, ETH_ALEN); | |
3052 | ||
b203ca39 | 3053 | if (!ether_addr_equal(bssid, mgmt->bssid)) |
8d61ffa5 | 3054 | return; |
66e67e41 JB |
3055 | |
3056 | auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg); | |
3057 | auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction); | |
3058 | status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
3059 | ||
3060 | if (auth_alg != ifmgd->auth_data->algorithm || | |
efb543e6 JM |
3061 | (auth_alg != WLAN_AUTH_SAE && |
3062 | auth_transaction != ifmgd->auth_data->expected_transaction) || | |
3063 | (auth_alg == WLAN_AUTH_SAE && | |
3064 | (auth_transaction < ifmgd->auth_data->expected_transaction || | |
3065 | auth_transaction > 2))) { | |
0f4126e8 JM |
3066 | sdata_info(sdata, "%pM unexpected authentication state: alg %d (expected %d) transact %d (expected %d)\n", |
3067 | mgmt->sa, auth_alg, ifmgd->auth_data->algorithm, | |
3068 | auth_transaction, | |
3069 | ifmgd->auth_data->expected_transaction); | |
15fae341 | 3070 | goto notify_driver; |
0f4126e8 | 3071 | } |
66e67e41 JB |
3072 | |
3073 | if (status_code != WLAN_STATUS_SUCCESS) { | |
a4055e74 AO |
3074 | cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); |
3075 | ||
3076 | if (auth_alg == WLAN_AUTH_SAE && | |
4e56cde1 JM |
3077 | (status_code == WLAN_STATUS_ANTI_CLOG_REQUIRED || |
3078 | (auth_transaction == 1 && | |
3079 | (status_code == WLAN_STATUS_SAE_HASH_TO_ELEMENT || | |
94d9864c JB |
3080 | status_code == WLAN_STATUS_SAE_PK)))) { |
3081 | /* waiting for userspace now */ | |
3082 | ifmgd->auth_data->waiting = true; | |
3083 | ifmgd->auth_data->timeout = | |
3084 | jiffies + IEEE80211_AUTH_WAIT_SAE_RETRY; | |
3085 | ifmgd->auth_data->timeout_started = true; | |
3086 | run_again(sdata, ifmgd->auth_data->timeout); | |
15fae341 | 3087 | goto notify_driver; |
94d9864c | 3088 | } |
a4055e74 | 3089 | |
bdcbd8e0 JB |
3090 | sdata_info(sdata, "%pM denied authentication (status %d)\n", |
3091 | mgmt->sa, status_code); | |
dac211ec | 3092 | ieee80211_destroy_auth_data(sdata, false); |
a9409093 EG |
3093 | event.u.mlme.status = MLME_DENIED; |
3094 | event.u.mlme.reason = status_code; | |
3095 | drv_event_callback(sdata->local, sdata, &event); | |
15fae341 | 3096 | goto notify_driver; |
66e67e41 JB |
3097 | } |
3098 | ||
3099 | switch (ifmgd->auth_data->algorithm) { | |
3100 | case WLAN_AUTH_OPEN: | |
3101 | case WLAN_AUTH_LEAP: | |
3102 | case WLAN_AUTH_FT: | |
6b8ece3a | 3103 | case WLAN_AUTH_SAE: |
dbc0c2cb JM |
3104 | case WLAN_AUTH_FILS_SK: |
3105 | case WLAN_AUTH_FILS_SK_PFS: | |
3106 | case WLAN_AUTH_FILS_PK: | |
66e67e41 JB |
3107 | break; |
3108 | case WLAN_AUTH_SHARED_KEY: | |
3109 | if (ifmgd->auth_data->expected_transaction != 4) { | |
3110 | ieee80211_auth_challenge(sdata, mgmt, len); | |
3111 | /* need another frame */ | |
8d61ffa5 | 3112 | return; |
66e67e41 JB |
3113 | } |
3114 | break; | |
3115 | default: | |
3116 | WARN_ONCE(1, "invalid auth alg %d", | |
3117 | ifmgd->auth_data->algorithm); | |
15fae341 | 3118 | goto notify_driver; |
66e67e41 JB |
3119 | } |
3120 | ||
a9409093 | 3121 | event.u.mlme.status = MLME_SUCCESS; |
15fae341 | 3122 | info.success = 1; |
a9409093 | 3123 | drv_event_callback(sdata->local, sdata, &event); |
efb543e6 JM |
3124 | if (ifmgd->auth_data->algorithm != WLAN_AUTH_SAE || |
3125 | (auth_transaction == 2 && | |
3126 | ifmgd->auth_data->expected_transaction == 2)) { | |
3127 | if (!ieee80211_mark_sta_auth(sdata, bssid)) | |
0daa63ed | 3128 | return; /* ignore frame -- wait for timeout */ |
efb543e6 JM |
3129 | } else if (ifmgd->auth_data->algorithm == WLAN_AUTH_SAE && |
3130 | auth_transaction == 2) { | |
3131 | sdata_info(sdata, "SAE peer confirmed\n"); | |
3132 | ifmgd->auth_data->peer_confirmed = true; | |
6b8ece3a JM |
3133 | } |
3134 | ||
6ff57cf8 | 3135 | cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); |
15fae341 JB |
3136 | notify_driver: |
3137 | drv_mgd_complete_tx(sdata->local, sdata, &info); | |
66e67e41 JB |
3138 | } |
3139 | ||
dfa1ad29 CO |
3140 | #define case_WLAN(type) \ |
3141 | case WLAN_REASON_##type: return #type | |
3142 | ||
79c92ca4 | 3143 | const char *ieee80211_get_reason_code_string(u16 reason_code) |
dfa1ad29 CO |
3144 | { |
3145 | switch (reason_code) { | |
3146 | case_WLAN(UNSPECIFIED); | |
3147 | case_WLAN(PREV_AUTH_NOT_VALID); | |
3148 | case_WLAN(DEAUTH_LEAVING); | |
3149 | case_WLAN(DISASSOC_DUE_TO_INACTIVITY); | |
3150 | case_WLAN(DISASSOC_AP_BUSY); | |
3151 | case_WLAN(CLASS2_FRAME_FROM_NONAUTH_STA); | |
3152 | case_WLAN(CLASS3_FRAME_FROM_NONASSOC_STA); | |
3153 | case_WLAN(DISASSOC_STA_HAS_LEFT); | |
3154 | case_WLAN(STA_REQ_ASSOC_WITHOUT_AUTH); | |
3155 | case_WLAN(DISASSOC_BAD_POWER); | |
3156 | case_WLAN(DISASSOC_BAD_SUPP_CHAN); | |
3157 | case_WLAN(INVALID_IE); | |
3158 | case_WLAN(MIC_FAILURE); | |
3159 | case_WLAN(4WAY_HANDSHAKE_TIMEOUT); | |
3160 | case_WLAN(GROUP_KEY_HANDSHAKE_TIMEOUT); | |
3161 | case_WLAN(IE_DIFFERENT); | |
3162 | case_WLAN(INVALID_GROUP_CIPHER); | |
3163 | case_WLAN(INVALID_PAIRWISE_CIPHER); | |
3164 | case_WLAN(INVALID_AKMP); | |
3165 | case_WLAN(UNSUPP_RSN_VERSION); | |
3166 | case_WLAN(INVALID_RSN_IE_CAP); | |
3167 | case_WLAN(IEEE8021X_FAILED); | |
3168 | case_WLAN(CIPHER_SUITE_REJECTED); | |
3169 | case_WLAN(DISASSOC_UNSPECIFIED_QOS); | |
3170 | case_WLAN(DISASSOC_QAP_NO_BANDWIDTH); | |
3171 | case_WLAN(DISASSOC_LOW_ACK); | |
3172 | case_WLAN(DISASSOC_QAP_EXCEED_TXOP); | |
3173 | case_WLAN(QSTA_LEAVE_QBSS); | |
3174 | case_WLAN(QSTA_NOT_USE); | |
3175 | case_WLAN(QSTA_REQUIRE_SETUP); | |
3176 | case_WLAN(QSTA_TIMEOUT); | |
3177 | case_WLAN(QSTA_CIPHER_NOT_SUPP); | |
3178 | case_WLAN(MESH_PEER_CANCELED); | |
3179 | case_WLAN(MESH_MAX_PEERS); | |
3180 | case_WLAN(MESH_CONFIG); | |
3181 | case_WLAN(MESH_CLOSE); | |
3182 | case_WLAN(MESH_MAX_RETRIES); | |
3183 | case_WLAN(MESH_CONFIRM_TIMEOUT); | |
3184 | case_WLAN(MESH_INVALID_GTK); | |
3185 | case_WLAN(MESH_INCONSISTENT_PARAM); | |
3186 | case_WLAN(MESH_INVALID_SECURITY); | |
3187 | case_WLAN(MESH_PATH_ERROR); | |
3188 | case_WLAN(MESH_PATH_NOFORWARD); | |
3189 | case_WLAN(MESH_PATH_DEST_UNREACHABLE); | |
3190 | case_WLAN(MAC_EXISTS_IN_MBSS); | |
3191 | case_WLAN(MESH_CHAN_REGULATORY); | |
3192 | case_WLAN(MESH_CHAN); | |
3193 | default: return "<unknown>"; | |
3194 | } | |
3195 | } | |
66e67e41 | 3196 | |
8d61ffa5 JB |
3197 | static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, |
3198 | struct ieee80211_mgmt *mgmt, size_t len) | |
f0706e82 | 3199 | { |
46900298 | 3200 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
c9c99f89 | 3201 | u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); |
f0706e82 | 3202 | |
8d61ffa5 | 3203 | sdata_assert_lock(sdata); |
66e67e41 | 3204 | |
f4ea83dd | 3205 | if (len < 24 + 2) |
8d61ffa5 | 3206 | return; |
f0706e82 | 3207 | |
79c92ca4 YW |
3208 | if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) { |
3209 | ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code); | |
3210 | return; | |
3211 | } | |
3212 | ||
c9c99f89 | 3213 | if (ifmgd->associated && |
c8fe4b0b JB |
3214 | ether_addr_equal(mgmt->bssid, ifmgd->bssid)) { |
3215 | const u8 *bssid = ifmgd->bssid; | |
77fdaa12 | 3216 | |
c9c99f89 JB |
3217 | sdata_info(sdata, "deauthenticated from %pM (Reason: %u=%s)\n", |
3218 | bssid, reason_code, | |
3219 | ieee80211_get_reason_code_string(reason_code)); | |
f0706e82 | 3220 | |
c9c99f89 | 3221 | ieee80211_set_disassoc(sdata, 0, 0, false, NULL); |
f0706e82 | 3222 | |
c9c99f89 | 3223 | ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, |
3f8a39ff | 3224 | reason_code, false); |
c9c99f89 JB |
3225 | return; |
3226 | } | |
77fdaa12 | 3227 | |
c9c99f89 JB |
3228 | if (ifmgd->assoc_data && |
3229 | ether_addr_equal(mgmt->bssid, ifmgd->assoc_data->bss->bssid)) { | |
3230 | const u8 *bssid = ifmgd->assoc_data->bss->bssid; | |
37ad3888 | 3231 | |
c9c99f89 JB |
3232 | sdata_info(sdata, |
3233 | "deauthenticated from %pM while associating (Reason: %u=%s)\n", | |
3234 | bssid, reason_code, | |
3235 | ieee80211_get_reason_code_string(reason_code)); | |
3236 | ||
e6f462df | 3237 | ieee80211_destroy_assoc_data(sdata, false, true); |
c9c99f89 JB |
3238 | |
3239 | cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); | |
3240 | return; | |
3241 | } | |
f0706e82 JB |
3242 | } |
3243 | ||
3244 | ||
8d61ffa5 JB |
3245 | static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, |
3246 | struct ieee80211_mgmt *mgmt, size_t len) | |
f0706e82 | 3247 | { |
46900298 | 3248 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
f0706e82 JB |
3249 | u16 reason_code; |
3250 | ||
8d61ffa5 | 3251 | sdata_assert_lock(sdata); |
77fdaa12 | 3252 | |
66e67e41 | 3253 | if (len < 24 + 2) |
8d61ffa5 | 3254 | return; |
77fdaa12 | 3255 | |
66e67e41 | 3256 | if (!ifmgd->associated || |
c8fe4b0b | 3257 | !ether_addr_equal(mgmt->bssid, ifmgd->bssid)) |
8d61ffa5 | 3258 | return; |
f0706e82 JB |
3259 | |
3260 | reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); | |
3261 | ||
79c92ca4 YW |
3262 | if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) { |
3263 | ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code); | |
3264 | return; | |
3265 | } | |
3266 | ||
68506e9a AM |
3267 | sdata_info(sdata, "disassociated from %pM (Reason: %u=%s)\n", |
3268 | mgmt->sa, reason_code, | |
3269 | ieee80211_get_reason_code_string(reason_code)); | |
f0706e82 | 3270 | |
37ad3888 JB |
3271 | ieee80211_set_disassoc(sdata, 0, 0, false, NULL); |
3272 | ||
3f8a39ff JB |
3273 | ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, reason_code, |
3274 | false); | |
f0706e82 JB |
3275 | } |
3276 | ||
c74d084f CL |
3277 | static void ieee80211_get_rates(struct ieee80211_supported_band *sband, |
3278 | u8 *supp_rates, unsigned int supp_rates_len, | |
3279 | u32 *rates, u32 *basic_rates, | |
3280 | bool *have_higher_than_11mbit, | |
2103dec1 | 3281 | int *min_rate, int *min_rate_index, |
44f6d42c | 3282 | int shift) |
c74d084f CL |
3283 | { |
3284 | int i, j; | |
3285 | ||
3286 | for (i = 0; i < supp_rates_len; i++) { | |
2103dec1 | 3287 | int rate = supp_rates[i] & 0x7f; |
c74d084f CL |
3288 | bool is_basic = !!(supp_rates[i] & 0x80); |
3289 | ||
2103dec1 | 3290 | if ((rate * 5 * (1 << shift)) > 110) |
c74d084f CL |
3291 | *have_higher_than_11mbit = true; |
3292 | ||
3293 | /* | |
3598ae87 IP |
3294 | * Skip HT, VHT, HE and SAE H2E only BSS membership selectors |
3295 | * since they're not rates. | |
c74d084f | 3296 | * |
a6289d3f | 3297 | * Note: Even though the membership selector and the basic |
c74d084f CL |
3298 | * rate flag share the same bit, they are not exactly |
3299 | * the same. | |
3300 | */ | |
a6289d3f | 3301 | if (supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY) || |
4826e721 | 3302 | supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY) || |
3598ae87 IP |
3303 | supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_HE_PHY) || |
3304 | supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_SAE_H2E)) | |
c74d084f CL |
3305 | continue; |
3306 | ||
3307 | for (j = 0; j < sband->n_bitrates; j++) { | |
2103dec1 SW |
3308 | struct ieee80211_rate *br; |
3309 | int brate; | |
3310 | ||
3311 | br = &sband->bitrates[j]; | |
2103dec1 SW |
3312 | |
3313 | brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); | |
3314 | if (brate == rate) { | |
c74d084f CL |
3315 | *rates |= BIT(j); |
3316 | if (is_basic) | |
3317 | *basic_rates |= BIT(j); | |
2103dec1 SW |
3318 | if ((rate * 5) < *min_rate) { |
3319 | *min_rate = rate * 5; | |
c74d084f CL |
3320 | *min_rate_index = j; |
3321 | } | |
3322 | break; | |
3323 | } | |
3324 | } | |
3325 | } | |
3326 | } | |
f0706e82 | 3327 | |
55ebd6e6 EG |
3328 | static bool ieee80211_twt_req_supported(const struct sta_info *sta, |
3329 | const struct ieee802_11_elems *elems) | |
3330 | { | |
3331 | if (elems->ext_capab_len < 10) | |
3332 | return false; | |
3333 | ||
3334 | if (!(elems->ext_capab[9] & WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT)) | |
3335 | return false; | |
3336 | ||
046d2e7c | 3337 | return sta->sta.deflink.he_cap.he_cap_elem.mac_cap_info[0] & |
55ebd6e6 EG |
3338 | IEEE80211_HE_MAC_CAP0_TWT_RES; |
3339 | } | |
3340 | ||
c9d3245e JC |
3341 | static int ieee80211_recalc_twt_req(struct ieee80211_sub_if_data *sdata, |
3342 | struct sta_info *sta, | |
3343 | struct ieee802_11_elems *elems) | |
3344 | { | |
3345 | bool twt = ieee80211_twt_req_supported(sta, elems); | |
3346 | ||
3347 | if (sdata->vif.bss_conf.twt_requester != twt) { | |
3348 | sdata->vif.bss_conf.twt_requester = twt; | |
3349 | return BSS_CHANGED_TWT; | |
3350 | } | |
3351 | return 0; | |
3352 | } | |
3353 | ||
bac2fd3d JB |
3354 | static bool ieee80211_twt_bcast_support(struct ieee80211_sub_if_data *sdata, |
3355 | struct ieee80211_bss_conf *bss_conf, | |
d8b26154 ST |
3356 | struct ieee80211_supported_band *sband, |
3357 | struct sta_info *sta) | |
3358 | { | |
3359 | const struct ieee80211_sta_he_cap *own_he_cap = | |
bac2fd3d JB |
3360 | ieee80211_get_he_iftype_cap(sband, |
3361 | ieee80211_vif_type_p2p(&sdata->vif)); | |
d8b26154 ST |
3362 | |
3363 | return bss_conf->he_support && | |
046d2e7c | 3364 | (sta->sta.deflink.he_cap.he_cap_elem.mac_cap_info[2] & |
d8b26154 ST |
3365 | IEEE80211_HE_MAC_CAP2_BCAST_TWT) && |
3366 | own_he_cap && | |
3367 | (own_he_cap->he_cap_elem.mac_cap_info[2] & | |
3368 | IEEE80211_HE_MAC_CAP2_BCAST_TWT); | |
3369 | } | |
3370 | ||
66e67e41 JB |
3371 | static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, |
3372 | struct cfg80211_bss *cbss, | |
f61d7884 JB |
3373 | struct ieee80211_mgmt *mgmt, size_t len, |
3374 | struct ieee802_11_elems *elems) | |
f0706e82 | 3375 | { |
46900298 | 3376 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
471b3efd | 3377 | struct ieee80211_local *local = sdata->local; |
8318d78a | 3378 | struct ieee80211_supported_band *sband; |
f0706e82 | 3379 | struct sta_info *sta; |
af6b6374 | 3380 | u16 capab_info, aid; |
bda3933a | 3381 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; |
35d865af JB |
3382 | const struct cfg80211_bss_ies *bss_ies = NULL; |
3383 | struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; | |
57fa5e85 | 3384 | bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; |
1d00ce80 | 3385 | bool is_s1g = cbss->channel->band == NL80211_BAND_S1GHZ; |
ae5eb026 | 3386 | u32 changed = 0; |
1d00ce80 | 3387 | u8 *pos; |
c74d084f | 3388 | int err; |
35d865af | 3389 | bool ret; |
f0706e82 | 3390 | |
af6b6374 | 3391 | /* AssocResp and ReassocResp have identical structure */ |
f0706e82 | 3392 | |
1d00ce80 | 3393 | pos = mgmt->u.assoc_resp.variable; |
f0706e82 | 3394 | aid = le16_to_cpu(mgmt->u.assoc_resp.aid); |
1d00ce80 TP |
3395 | if (is_s1g) { |
3396 | pos = (u8 *) mgmt->u.s1g_assoc_resp.variable; | |
3397 | aid = 0; /* TODO */ | |
3398 | } | |
af6b6374 | 3399 | capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); |
5d24828d JB |
3400 | elems = ieee802_11_parse_elems(pos, len - (pos - (u8 *)mgmt), false, |
3401 | mgmt->bssid, assoc_data->bss->bssid); | |
3402 | ||
3403 | if (!elems) | |
3404 | return false; | |
1d00ce80 TP |
3405 | |
3406 | if (elems->aid_resp) | |
3407 | aid = le16_to_cpu(elems->aid_resp->aid); | |
f0706e82 | 3408 | |
c7c477b5 JB |
3409 | /* |
3410 | * The 5 MSB of the AID field are reserved | |
3411 | * (802.11-2016 9.4.1.8 AID field) | |
3412 | */ | |
3413 | aid &= 0x7ff; | |
1dd84aa2 | 3414 | |
05cb9108 JB |
3415 | ifmgd->broken_ap = false; |
3416 | ||
3417 | if (aid == 0 || aid > IEEE80211_MAX_AID) { | |
bdcbd8e0 JB |
3418 | sdata_info(sdata, "invalid AID value %d (out of range), turn off PS\n", |
3419 | aid); | |
05cb9108 JB |
3420 | aid = 0; |
3421 | ifmgd->broken_ap = true; | |
3422 | } | |
3423 | ||
1d00ce80 | 3424 | if (!is_s1g && !elems->supp_rates) { |
bdcbd8e0 | 3425 | sdata_info(sdata, "no SuppRates element in AssocResp\n"); |
5d24828d JB |
3426 | ret = false; |
3427 | goto out; | |
f0706e82 JB |
3428 | } |
3429 | ||
1db364c8 | 3430 | sdata->vif.bss_conf.aid = aid; |
9041c1fa | 3431 | ifmgd->tdls_chan_switch_prohibited = |
f61d7884 JB |
3432 | elems->ext_capab && elems->ext_capab_len >= 5 && |
3433 | (elems->ext_capab[4] & WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED); | |
f0706e82 | 3434 | |
35d865af JB |
3435 | /* |
3436 | * Some APs are erroneously not including some information in their | |
3437 | * (re)association response frames. Try to recover by using the data | |
3438 | * from the beacon or probe response. This seems to afflict mobile | |
3439 | * 2G/3G/4G wifi routers, reported models include the "Onda PN51T", | |
3440 | * "Vodafone PocketWiFi 2", "ZTE MF60" and a similar T-Mobile device. | |
3441 | */ | |
57fa5e85 JB |
3442 | if (!is_6ghz && |
3443 | ((assoc_data->wmm && !elems->wmm_param) || | |
3444 | (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) && | |
3445 | (!elems->ht_cap_elem || !elems->ht_operation)) || | |
3446 | (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) && | |
3447 | (!elems->vht_cap_elem || !elems->vht_operation)))) { | |
35d865af | 3448 | const struct cfg80211_bss_ies *ies; |
5d24828d | 3449 | struct ieee802_11_elems *bss_elems; |
35d865af JB |
3450 | |
3451 | rcu_read_lock(); | |
3452 | ies = rcu_dereference(cbss->ies); | |
3453 | if (ies) | |
3454 | bss_ies = kmemdup(ies, sizeof(*ies) + ies->len, | |
3455 | GFP_ATOMIC); | |
3456 | rcu_read_unlock(); | |
8223ac19 JB |
3457 | if (!bss_ies) { |
3458 | ret = false; | |
3459 | goto out; | |
3460 | } | |
35d865af | 3461 | |
5d24828d JB |
3462 | bss_elems = ieee802_11_parse_elems(bss_ies->data, bss_ies->len, |
3463 | false, mgmt->bssid, | |
3464 | assoc_data->bss->bssid); | |
3465 | if (!bss_elems) { | |
3466 | ret = false; | |
3467 | goto out; | |
3468 | } | |
3469 | ||
35d865af | 3470 | if (assoc_data->wmm && |
5d24828d JB |
3471 | !elems->wmm_param && bss_elems->wmm_param) { |
3472 | elems->wmm_param = bss_elems->wmm_param; | |
35d865af JB |
3473 | sdata_info(sdata, |
3474 | "AP bug: WMM param missing from AssocResp\n"); | |
3475 | } | |
3476 | ||
3477 | /* | |
3478 | * Also check if we requested HT/VHT, otherwise the AP doesn't | |
3479 | * have to include the IEs in the (re)association response. | |
3480 | */ | |
5d24828d | 3481 | if (!elems->ht_cap_elem && bss_elems->ht_cap_elem && |
35d865af | 3482 | !(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) { |
5d24828d | 3483 | elems->ht_cap_elem = bss_elems->ht_cap_elem; |
35d865af JB |
3484 | sdata_info(sdata, |
3485 | "AP bug: HT capability missing from AssocResp\n"); | |
3486 | } | |
5d24828d | 3487 | if (!elems->ht_operation && bss_elems->ht_operation && |
35d865af | 3488 | !(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) { |
5d24828d | 3489 | elems->ht_operation = bss_elems->ht_operation; |
35d865af JB |
3490 | sdata_info(sdata, |
3491 | "AP bug: HT operation missing from AssocResp\n"); | |
3492 | } | |
5d24828d | 3493 | if (!elems->vht_cap_elem && bss_elems->vht_cap_elem && |
35d865af | 3494 | !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) { |
5d24828d | 3495 | elems->vht_cap_elem = bss_elems->vht_cap_elem; |
35d865af JB |
3496 | sdata_info(sdata, |
3497 | "AP bug: VHT capa missing from AssocResp\n"); | |
3498 | } | |
5d24828d | 3499 | if (!elems->vht_operation && bss_elems->vht_operation && |
35d865af | 3500 | !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) { |
5d24828d | 3501 | elems->vht_operation = bss_elems->vht_operation; |
35d865af JB |
3502 | sdata_info(sdata, |
3503 | "AP bug: VHT operation missing from AssocResp\n"); | |
3504 | } | |
5d24828d JB |
3505 | |
3506 | kfree(bss_elems); | |
35d865af JB |
3507 | } |
3508 | ||
30eb1dc2 JB |
3509 | /* |
3510 | * We previously checked these in the beacon/probe response, so | |
3511 | * they should be present here. This is just a safety net. | |
3512 | */ | |
57fa5e85 | 3513 | if (!is_6ghz && !(ifmgd->flags & IEEE80211_STA_DISABLE_HT) && |
f61d7884 | 3514 | (!elems->wmm_param || !elems->ht_cap_elem || !elems->ht_operation)) { |
30eb1dc2 | 3515 | sdata_info(sdata, |
35d865af JB |
3516 | "HT AP is missing WMM params or HT capability/operation\n"); |
3517 | ret = false; | |
3518 | goto out; | |
30eb1dc2 JB |
3519 | } |
3520 | ||
57fa5e85 | 3521 | if (!is_6ghz && !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) && |
f61d7884 | 3522 | (!elems->vht_cap_elem || !elems->vht_operation)) { |
30eb1dc2 | 3523 | sdata_info(sdata, |
35d865af JB |
3524 | "VHT AP is missing VHT capability/operation\n"); |
3525 | ret = false; | |
3526 | goto out; | |
30eb1dc2 JB |
3527 | } |
3528 | ||
57fa5e85 JB |
3529 | if (is_6ghz && !(ifmgd->flags & IEEE80211_STA_DISABLE_HE) && |
3530 | !elems->he_6ghz_capa) { | |
3531 | sdata_info(sdata, | |
3532 | "HE 6 GHz AP is missing HE 6 GHz band capability\n"); | |
3533 | ret = false; | |
3534 | goto out; | |
3535 | } | |
3536 | ||
2a33bee2 GE |
3537 | mutex_lock(&sdata->local->sta_mtx); |
3538 | /* | |
3539 | * station info was already allocated and inserted before | |
3540 | * the association and should be available to us | |
3541 | */ | |
7852e361 | 3542 | sta = sta_info_get(sdata, cbss->bssid); |
2a33bee2 GE |
3543 | if (WARN_ON(!sta)) { |
3544 | mutex_unlock(&sdata->local->sta_mtx); | |
35d865af JB |
3545 | ret = false; |
3546 | goto out; | |
77fdaa12 | 3547 | } |
05e5e883 | 3548 | |
21a8e9dd MSS |
3549 | sband = ieee80211_get_sband(sdata); |
3550 | if (!sband) { | |
3551 | mutex_unlock(&sdata->local->sta_mtx); | |
3552 | ret = false; | |
3553 | goto out; | |
3554 | } | |
f709fc69 | 3555 | |
41cbb0f5 | 3556 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE) && |
f61d7884 | 3557 | (!elems->he_cap || !elems->he_operation)) { |
41cbb0f5 LC |
3558 | mutex_unlock(&sdata->local->sta_mtx); |
3559 | sdata_info(sdata, | |
3560 | "HE AP is missing HE capability/operation\n"); | |
3561 | ret = false; | |
3562 | goto out; | |
3563 | } | |
3564 | ||
30eb1dc2 | 3565 | /* Set up internal HT/VHT capabilities */ |
f61d7884 | 3566 | if (elems->ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) |
ef96a842 | 3567 | ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, |
f61d7884 | 3568 | elems->ht_cap_elem, sta); |
64f68e5d | 3569 | |
f61d7884 | 3570 | if (elems->vht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_VHT)) |
818255ea | 3571 | ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, |
f61d7884 | 3572 | elems->vht_cap_elem, sta); |
818255ea | 3573 | |
f61d7884 JB |
3574 | if (elems->he_operation && !(ifmgd->flags & IEEE80211_STA_DISABLE_HE) && |
3575 | elems->he_cap) { | |
41cbb0f5 | 3576 | ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, |
f61d7884 JB |
3577 | elems->he_cap, |
3578 | elems->he_cap_len, | |
1bb9a8a4 | 3579 | elems->he_6ghz_capa, |
41cbb0f5 LC |
3580 | sta); |
3581 | ||
046d2e7c | 3582 | bss_conf->he_support = sta->sta.deflink.he_cap.has_he; |
d46b4ab8 ST |
3583 | if (elems->rsnx && elems->rsnx_len && |
3584 | (elems->rsnx[0] & WLAN_RSNX_CAPA_PROTECTED_TWT) && | |
3585 | wiphy_ext_feature_isset(local->hw.wiphy, | |
3586 | NL80211_EXT_FEATURE_PROTECTED_TWT)) | |
3587 | bss_conf->twt_protected = true; | |
3588 | else | |
3589 | bss_conf->twt_protected = false; | |
3590 | ||
f61d7884 | 3591 | changed |= ieee80211_recalc_twt_req(sdata, sta, elems); |
a1de6407 IP |
3592 | |
3593 | if (elems->eht_operation && elems->eht_cap && | |
3594 | !(ifmgd->flags & IEEE80211_STA_DISABLE_EHT)) { | |
3595 | ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, | |
3596 | elems->he_cap, | |
3597 | elems->he_cap_len, | |
3598 | elems->eht_cap, | |
3599 | elems->eht_cap_len, | |
3600 | sta); | |
3601 | ||
046d2e7c | 3602 | bss_conf->eht_support = sta->sta.deflink.eht_cap.has_eht; |
a1de6407 IP |
3603 | } else { |
3604 | bss_conf->eht_support = false; | |
3605 | } | |
41cbb0f5 LC |
3606 | } else { |
3607 | bss_conf->he_support = false; | |
55ebd6e6 | 3608 | bss_conf->twt_requester = false; |
d46b4ab8 | 3609 | bss_conf->twt_protected = false; |
a1de6407 | 3610 | bss_conf->eht_support = false; |
41cbb0f5 LC |
3611 | } |
3612 | ||
d8b26154 | 3613 | bss_conf->twt_broadcast = |
bac2fd3d | 3614 | ieee80211_twt_bcast_support(sdata, bss_conf, sband, sta); |
d8b26154 | 3615 | |
41cbb0f5 | 3616 | if (bss_conf->he_support) { |
dd56e902 | 3617 | bss_conf->he_bss_color.color = |
f61d7884 | 3618 | le32_get_bits(elems->he_operation->he_oper_params, |
77cbbc35 | 3619 | IEEE80211_HE_OPERATION_BSS_COLOR_MASK); |
dd56e902 JC |
3620 | bss_conf->he_bss_color.partial = |
3621 | le32_get_bits(elems->he_operation->he_oper_params, | |
3622 | IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR); | |
75e6b594 JB |
3623 | bss_conf->he_bss_color.enabled = |
3624 | !le32_get_bits(elems->he_operation->he_oper_params, | |
3625 | IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); | |
322cd27c | 3626 | |
75e6b594 | 3627 | if (bss_conf->he_bss_color.enabled) |
322cd27c | 3628 | changed |= BSS_CHANGED_HE_BSS_COLOR; |
41cbb0f5 | 3629 | |
41cbb0f5 | 3630 | bss_conf->htc_trig_based_pkt_ext = |
f61d7884 | 3631 | le32_get_bits(elems->he_operation->he_oper_params, |
77cbbc35 | 3632 | IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); |
41cbb0f5 | 3633 | bss_conf->frame_time_rts_th = |
f61d7884 | 3634 | le32_get_bits(elems->he_operation->he_oper_params, |
77cbbc35 | 3635 | IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); |
41cbb0f5 | 3636 | |
f61d7884 JB |
3637 | bss_conf->uora_exists = !!elems->uora_element; |
3638 | if (elems->uora_element) | |
3639 | bss_conf->uora_ocw_range = elems->uora_element[0]; | |
41cbb0f5 | 3640 | |
f61d7884 JB |
3641 | ieee80211_he_op_ie_to_bss_conf(&sdata->vif, elems->he_operation); |
3642 | ieee80211_he_spr_ie_to_bss_conf(&sdata->vif, elems->he_spr); | |
41cbb0f5 LC |
3643 | /* TODO: OPEN: what happens if BSS color disable is set? */ |
3644 | } | |
3645 | ||
78ac51f8 SS |
3646 | if (cbss->transmitted_bss) { |
3647 | bss_conf->nontransmitted = true; | |
3648 | ether_addr_copy(bss_conf->transmitter_bssid, | |
3649 | cbss->transmitted_bss->bssid); | |
3650 | bss_conf->bssid_indicator = cbss->max_bssid_indicator; | |
3651 | bss_conf->bssid_index = cbss->bssid_index; | |
86af062f MP |
3652 | } else { |
3653 | bss_conf->nontransmitted = false; | |
3654 | memset(bss_conf->transmitter_bssid, 0, | |
3655 | sizeof(bss_conf->transmitter_bssid)); | |
3656 | bss_conf->bssid_indicator = 0; | |
3657 | bss_conf->bssid_index = 0; | |
78ac51f8 SS |
3658 | } |
3659 | ||
30eb1dc2 JB |
3660 | /* |
3661 | * Some APs, e.g. Netgear WNDR3700, report invalid HT operation data | |
3662 | * in their association response, so ignore that data for our own | |
3663 | * configuration. If it changed since the last beacon, we'll get the | |
3664 | * next beacon and update then. | |
3665 | */ | |
1128958d | 3666 | |
bee7f586 JB |
3667 | /* |
3668 | * If an operating mode notification IE is present, override the | |
3669 | * NSS calculation (that would be done in rate_control_rate_init()) | |
3670 | * and use the # of streams from that element. | |
3671 | */ | |
f61d7884 JB |
3672 | if (elems->opmode_notif && |
3673 | !(*elems->opmode_notif & IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF)) { | |
bee7f586 JB |
3674 | u8 nss; |
3675 | ||
f61d7884 | 3676 | nss = *elems->opmode_notif & IEEE80211_OPMODE_NOTIF_RX_NSS_MASK; |
bee7f586 JB |
3677 | nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT; |
3678 | nss += 1; | |
046d2e7c | 3679 | sta->sta.deflink.rx_nss = nss; |
bee7f586 JB |
3680 | } |
3681 | ||
4b7679a5 | 3682 | rate_control_rate_init(sta); |
f0706e82 | 3683 | |
93f0490e | 3684 | if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED) { |
c2c98fde | 3685 | set_sta_flag(sta, WLAN_STA_MFP); |
93f0490e T |
3686 | sta->sta.mfp = true; |
3687 | } else { | |
3688 | sta->sta.mfp = false; | |
3689 | } | |
5394af4d | 3690 | |
1d00ce80 TP |
3691 | sta->sta.wme = (elems->wmm_param || elems->s1g_capab) && |
3692 | local->hw.queues >= IEEE80211_NUM_ACS; | |
ddf4ac53 | 3693 | |
3e4d40fa | 3694 | err = sta_info_move_state(sta, IEEE80211_STA_ASSOC); |
c8987876 JB |
3695 | if (!err && !(ifmgd->flags & IEEE80211_STA_CONTROL_PORT)) |
3696 | err = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); | |
3697 | if (err) { | |
bdcbd8e0 JB |
3698 | sdata_info(sdata, |
3699 | "failed to move station %pM to desired state\n", | |
3700 | sta->sta.addr); | |
c8987876 JB |
3701 | WARN_ON(__sta_info_destroy(sta)); |
3702 | mutex_unlock(&sdata->local->sta_mtx); | |
35d865af JB |
3703 | ret = false; |
3704 | goto out; | |
c8987876 JB |
3705 | } |
3706 | ||
1ff4e8f2 FF |
3707 | if (sdata->wdev.use_4addr) |
3708 | drv_sta_set_4addr(local, sdata, &sta->sta, true); | |
3709 | ||
7852e361 | 3710 | mutex_unlock(&sdata->local->sta_mtx); |
ddf4ac53 | 3711 | |
f2176d72 JO |
3712 | /* |
3713 | * Always handle WMM once after association regardless | |
3714 | * of the first value the AP uses. Setting -1 here has | |
3715 | * that effect because the AP values is an unsigned | |
3716 | * 4-bit value. | |
3717 | */ | |
3718 | ifmgd->wmm_last_param_set = -1; | |
2e249fc3 | 3719 | ifmgd->mu_edca_last_param_set = -1; |
f2176d72 | 3720 | |
2ed77ea6 | 3721 | if (ifmgd->flags & IEEE80211_STA_DISABLE_WMM) { |
cec66283 | 3722 | ieee80211_set_wmm_default(sdata, false, false); |
f61d7884 JB |
3723 | } else if (!ieee80211_sta_wmm_params(local, sdata, elems->wmm_param, |
3724 | elems->wmm_param_len, | |
3725 | elems->mu_edca_param_set)) { | |
2ed77ea6 JB |
3726 | /* still enable QoS since we might have HT/VHT */ |
3727 | ieee80211_set_wmm_default(sdata, false, true); | |
3728 | /* set the disable-WMM flag in this case to disable | |
3729 | * tracking WMM parameter changes in the beacon if | |
3730 | * the parameters weren't actually valid. Doing so | |
3731 | * avoids changing parameters very strangely when | |
3732 | * the AP is going back and forth between valid and | |
3733 | * invalid parameters. | |
3734 | */ | |
3735 | ifmgd->flags |= IEEE80211_STA_DISABLE_WMM; | |
3736 | } | |
3abead59 | 3737 | changed |= BSS_CHANGED_QOS; |
f0706e82 | 3738 | |
f61d7884 | 3739 | if (elems->max_idle_period_ie) { |
e38a017b | 3740 | bss_conf->max_idle_period = |
f61d7884 | 3741 | le16_to_cpu(elems->max_idle_period_ie->max_idle_period); |
e38a017b | 3742 | bss_conf->protected_keep_alive = |
f61d7884 | 3743 | !!(elems->max_idle_period_ie->idle_options & |
e38a017b AS |
3744 | WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE); |
3745 | changed |= BSS_CHANGED_KEEP_ALIVE; | |
3746 | } else { | |
3747 | bss_conf->max_idle_period = 0; | |
3748 | bss_conf->protected_keep_alive = false; | |
3749 | } | |
3750 | ||
1db364c8 | 3751 | /* set assoc capability (AID was already set earlier), |
60f8b39c | 3752 | * ieee80211_set_associated() will tell the driver */ |
60f8b39c | 3753 | bss_conf->assoc_capability = capab_info; |
0c1ad2ca | 3754 | ieee80211_set_associated(sdata, cbss, changed); |
f0706e82 | 3755 | |
d524215f FF |
3756 | /* |
3757 | * If we're using 4-addr mode, let the AP know that we're | |
3758 | * doing so, so that it can create the STA VLAN on its side | |
3759 | */ | |
3760 | if (ifmgd->use_4addr) | |
3761 | ieee80211_send_4addr_nullfunc(local, sdata); | |
3762 | ||
15b7b062 | 3763 | /* |
b291ba11 JB |
3764 | * Start timer to probe the connection to the AP now. |
3765 | * Also start the timer that will detect beacon loss. | |
15b7b062 | 3766 | */ |
d3a910a8 | 3767 | ieee80211_sta_reset_beacon_monitor(sdata); |
9abf4e49 | 3768 | ieee80211_sta_reset_conn_monitor(sdata); |
15b7b062 | 3769 | |
35d865af JB |
3770 | ret = true; |
3771 | out: | |
5d24828d | 3772 | kfree(elems); |
35d865af JB |
3773 | kfree(bss_ies); |
3774 | return ret; | |
f0706e82 JB |
3775 | } |
3776 | ||
8d61ffa5 JB |
3777 | static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, |
3778 | struct ieee80211_mgmt *mgmt, | |
3779 | size_t len) | |
66e67e41 JB |
3780 | { |
3781 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
3782 | struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; | |
3783 | u16 capab_info, status_code, aid; | |
5d24828d | 3784 | struct ieee802_11_elems *elems; |
b0b6aa2c | 3785 | int ac, uapsd_queues = -1; |
66e67e41 JB |
3786 | u8 *pos; |
3787 | bool reassoc; | |
1d00ce80 | 3788 | struct cfg80211_bss *cbss; |
d0d1a12f EG |
3789 | struct ieee80211_event event = { |
3790 | .type = MLME_EVENT, | |
3791 | .u.mlme.data = ASSOC_EVENT, | |
3792 | }; | |
15fae341 | 3793 | struct ieee80211_prep_tx_info info = {}; |
66e67e41 | 3794 | |
8d61ffa5 | 3795 | sdata_assert_lock(sdata); |
66e67e41 JB |
3796 | |
3797 | if (!assoc_data) | |
8d61ffa5 | 3798 | return; |
1d00ce80 | 3799 | |
b203ca39 | 3800 | if (!ether_addr_equal(assoc_data->bss->bssid, mgmt->bssid)) |
8d61ffa5 | 3801 | return; |
66e67e41 | 3802 | |
1d00ce80 TP |
3803 | cbss = assoc_data->bss; |
3804 | ||
66e67e41 JB |
3805 | /* |
3806 | * AssocResp and ReassocResp have identical structure, so process both | |
3807 | * of them in this function. | |
3808 | */ | |
3809 | ||
3810 | if (len < 24 + 6) | |
8d61ffa5 | 3811 | return; |
66e67e41 | 3812 | |
7a7d3e4c | 3813 | reassoc = ieee80211_is_reassoc_resp(mgmt->frame_control); |
66e67e41 JB |
3814 | capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); |
3815 | status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); | |
1d00ce80 | 3816 | pos = mgmt->u.assoc_resp.variable; |
66e67e41 | 3817 | aid = le16_to_cpu(mgmt->u.assoc_resp.aid); |
1d00ce80 TP |
3818 | if (cbss->channel->band == NL80211_BAND_S1GHZ) { |
3819 | pos = (u8 *) mgmt->u.s1g_assoc_resp.variable; | |
3820 | aid = 0; /* TODO */ | |
3821 | } | |
66e67e41 | 3822 | |
15fae341 JB |
3823 | /* |
3824 | * Note: this may not be perfect, AP might misbehave - if | |
3825 | * anyone needs to rely on perfect complete notification | |
3826 | * with the exact right subtype, then we need to track what | |
3827 | * we actually transmitted. | |
3828 | */ | |
3829 | info.subtype = reassoc ? IEEE80211_STYPE_REASSOC_REQ : | |
3830 | IEEE80211_STYPE_ASSOC_REQ; | |
3831 | ||
bdcbd8e0 JB |
3832 | sdata_info(sdata, |
3833 | "RX %sssocResp from %pM (capab=0x%x status=%d aid=%d)\n", | |
3834 | reassoc ? "Rea" : "A", mgmt->sa, | |
3835 | capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); | |
66e67e41 | 3836 | |
39404fee JM |
3837 | if (assoc_data->fils_kek_len && |
3838 | fils_decrypt_assoc_resp(sdata, (u8 *)mgmt, &len, assoc_data) < 0) | |
3839 | return; | |
3840 | ||
5d24828d JB |
3841 | elems = ieee802_11_parse_elems(pos, len - (pos - (u8 *)mgmt), false, |
3842 | mgmt->bssid, assoc_data->bss->bssid); | |
3843 | if (!elems) | |
3844 | goto notify_driver; | |
66e67e41 JB |
3845 | |
3846 | if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY && | |
5d24828d JB |
3847 | elems->timeout_int && |
3848 | elems->timeout_int->type == WLAN_TIMEOUT_ASSOC_COMEBACK) { | |
66e67e41 | 3849 | u32 tu, ms; |
852a07c1 IP |
3850 | |
3851 | cfg80211_assoc_comeback(sdata->dev, assoc_data->bss, | |
3852 | le32_to_cpu(elems->timeout_int->value)); | |
3853 | ||
5d24828d | 3854 | tu = le32_to_cpu(elems->timeout_int->value); |
66e67e41 | 3855 | ms = tu * 1024 / 1000; |
bdcbd8e0 JB |
3856 | sdata_info(sdata, |
3857 | "%pM rejected association temporarily; comeback duration %u TU (%u ms)\n", | |
3858 | mgmt->sa, tu, ms); | |
66e67e41 | 3859 | assoc_data->timeout = jiffies + msecs_to_jiffies(ms); |
89afe614 | 3860 | assoc_data->timeout_started = true; |
66e67e41 | 3861 | if (ms > IEEE80211_ASSOC_TIMEOUT) |
8d61ffa5 | 3862 | run_again(sdata, assoc_data->timeout); |
15fae341 | 3863 | goto notify_driver; |
66e67e41 JB |
3864 | } |
3865 | ||
66e67e41 | 3866 | if (status_code != WLAN_STATUS_SUCCESS) { |
bdcbd8e0 JB |
3867 | sdata_info(sdata, "%pM denied association (code=%d)\n", |
3868 | mgmt->sa, status_code); | |
e6f462df | 3869 | ieee80211_destroy_assoc_data(sdata, false, false); |
d0d1a12f EG |
3870 | event.u.mlme.status = MLME_DENIED; |
3871 | event.u.mlme.reason = status_code; | |
3872 | drv_event_callback(sdata->local, sdata, &event); | |
66e67e41 | 3873 | } else { |
5d24828d | 3874 | if (!ieee80211_assoc_success(sdata, cbss, mgmt, len, elems)) { |
66e67e41 | 3875 | /* oops -- internal error -- send timeout for now */ |
e6f462df | 3876 | ieee80211_destroy_assoc_data(sdata, false, false); |
1d00ce80 | 3877 | cfg80211_assoc_timeout(sdata->dev, cbss); |
15fae341 | 3878 | goto notify_driver; |
66e67e41 | 3879 | } |
d0d1a12f EG |
3880 | event.u.mlme.status = MLME_SUCCESS; |
3881 | drv_event_callback(sdata->local, sdata, &event); | |
635d999f | 3882 | sdata_info(sdata, "associated\n"); |
79ebfb85 JB |
3883 | |
3884 | /* | |
3885 | * destroy assoc_data afterwards, as otherwise an idle | |
3886 | * recalc after assoc_data is NULL but before associated | |
3887 | * is set can cause the interface to go idle | |
3888 | */ | |
e6f462df | 3889 | ieee80211_destroy_assoc_data(sdata, true, false); |
b0b6aa2c EP |
3890 | |
3891 | /* get uapsd queues configuration */ | |
3892 | uapsd_queues = 0; | |
3893 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
3894 | if (sdata->tx_conf[ac].uapsd) | |
f438ceb8 | 3895 | uapsd_queues |= ieee80211_ac_to_qos_mask[ac]; |
15fae341 JB |
3896 | |
3897 | info.success = 1; | |
66e67e41 JB |
3898 | } |
3899 | ||
1d00ce80 | 3900 | cfg80211_rx_assoc_resp(sdata->dev, cbss, (u8 *)mgmt, len, uapsd_queues, |
4d9ec73d | 3901 | ifmgd->assoc_req_ies, ifmgd->assoc_req_ies_len); |
15fae341 JB |
3902 | notify_driver: |
3903 | drv_mgd_complete_tx(sdata->local, sdata, &info); | |
5d24828d | 3904 | kfree(elems); |
66e67e41 | 3905 | } |
8e3c1b77 | 3906 | |
98c8fccf | 3907 | static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, |
8e3c1b77 | 3908 | struct ieee80211_mgmt *mgmt, size_t len, |
4abb52a4 | 3909 | struct ieee80211_rx_status *rx_status) |
98c8fccf JB |
3910 | { |
3911 | struct ieee80211_local *local = sdata->local; | |
c2b13452 | 3912 | struct ieee80211_bss *bss; |
98c8fccf | 3913 | struct ieee80211_channel *channel; |
56007a02 | 3914 | |
8d61ffa5 | 3915 | sdata_assert_lock(sdata); |
b4f286a1 | 3916 | |
3b23c184 TP |
3917 | channel = ieee80211_get_channel_khz(local->hw.wiphy, |
3918 | ieee80211_rx_status_to_khz(rx_status)); | |
3afc2167 | 3919 | if (!channel) |
98c8fccf JB |
3920 | return; |
3921 | ||
4abb52a4 | 3922 | bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, channel); |
817cee76 | 3923 | if (bss) { |
817cee76 | 3924 | sdata->vif.bss_conf.beacon_rate = bss->beacon_rate; |
d2722f8b | 3925 | ieee80211_rx_bss_put(local, bss); |
817cee76 | 3926 | } |
f0706e82 JB |
3927 | } |
3928 | ||
3929 | ||
f698d856 | 3930 | static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata, |
af6b6374 | 3931 | struct sk_buff *skb) |
f0706e82 | 3932 | { |
af6b6374 | 3933 | struct ieee80211_mgmt *mgmt = (void *)skb->data; |
15b7b062 | 3934 | struct ieee80211_if_managed *ifmgd; |
af6b6374 | 3935 | struct ieee80211_rx_status *rx_status = (void *) skb->cb; |
85b27ef7 | 3936 | struct ieee80211_channel *channel; |
af6b6374 | 3937 | size_t baselen, len = skb->len; |
ae6a44e3 | 3938 | |
15b7b062 KV |
3939 | ifmgd = &sdata->u.mgd; |
3940 | ||
8d61ffa5 | 3941 | sdata_assert_lock(sdata); |
77fdaa12 | 3942 | |
85b27ef7 AO |
3943 | /* |
3944 | * According to Draft P802.11ax D6.0 clause 26.17.2.3.2: | |
3945 | * "If a 6 GHz AP receives a Probe Request frame and responds with | |
3946 | * a Probe Response frame [..], the Address 1 field of the Probe | |
3947 | * Response frame shall be set to the broadcast address [..]" | |
3948 | * So, on 6GHz band we should also accept broadcast responses. | |
3949 | */ | |
3950 | channel = ieee80211_get_channel(sdata->local->hw.wiphy, | |
3951 | rx_status->freq); | |
3952 | if (!channel) | |
3953 | return; | |
3954 | ||
3955 | if (!ether_addr_equal(mgmt->da, sdata->vif.addr) && | |
3956 | (channel->band != NL80211_BAND_6GHZ || | |
3957 | !is_broadcast_ether_addr(mgmt->da))) | |
8e7cdbb6 TW |
3958 | return; /* ignore ProbeResp to foreign address */ |
3959 | ||
ae6a44e3 EK |
3960 | baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt; |
3961 | if (baselen > len) | |
3962 | return; | |
3963 | ||
4abb52a4 | 3964 | ieee80211_rx_bss_info(sdata, mgmt, len, rx_status); |
9859b81e | 3965 | |
77fdaa12 | 3966 | if (ifmgd->associated && |
c8fe4b0b | 3967 | ether_addr_equal(mgmt->bssid, ifmgd->bssid)) |
4e5ff376 | 3968 | ieee80211_reset_ap_probe(sdata); |
f0706e82 JB |
3969 | } |
3970 | ||
d91f36db JB |
3971 | /* |
3972 | * This is the canonical list of information elements we care about, | |
3973 | * the filter code also gives us all changes to the Microsoft OUI | |
c8d65917 SG |
3974 | * (00:50:F2) vendor IE which is used for WMM which we need to track, |
3975 | * as well as the DTPC IE (part of the Cisco OUI) used for signaling | |
3976 | * changes to requested client power. | |
d91f36db JB |
3977 | * |
3978 | * We implement beacon filtering in software since that means we can | |
3979 | * avoid processing the frame here and in cfg80211, and userspace | |
3980 | * will not be able to tell whether the hardware supports it or not. | |
3981 | * | |
3982 | * XXX: This list needs to be dynamic -- userspace needs to be able to | |
3983 | * add items it requires. It also needs to be able to tell us to | |
3984 | * look out for other vendor IEs. | |
3985 | */ | |
3986 | static const u64 care_about_ies = | |
1d4df3a5 JB |
3987 | (1ULL << WLAN_EID_COUNTRY) | |
3988 | (1ULL << WLAN_EID_ERP_INFO) | | |
3989 | (1ULL << WLAN_EID_CHANNEL_SWITCH) | | |
3990 | (1ULL << WLAN_EID_PWR_CONSTRAINT) | | |
3991 | (1ULL << WLAN_EID_HT_CAPABILITY) | | |
70a3fd6c JB |
3992 | (1ULL << WLAN_EID_HT_OPERATION) | |
3993 | (1ULL << WLAN_EID_EXT_CHANSWITCH_ANN); | |
d91f36db | 3994 | |
1ad22fb5 T |
3995 | static void ieee80211_handle_beacon_sig(struct ieee80211_sub_if_data *sdata, |
3996 | struct ieee80211_if_managed *ifmgd, | |
3997 | struct ieee80211_bss_conf *bss_conf, | |
3998 | struct ieee80211_local *local, | |
3999 | struct ieee80211_rx_status *rx_status) | |
f0706e82 | 4000 | { |
17e4ec14 | 4001 | /* Track average RSSI from the Beacon frames of the current AP */ |
1ad22fb5 | 4002 | |
17e4ec14 JM |
4003 | if (ifmgd->flags & IEEE80211_STA_RESET_SIGNAL_AVE) { |
4004 | ifmgd->flags &= ~IEEE80211_STA_RESET_SIGNAL_AVE; | |
338c17ae | 4005 | ewma_beacon_signal_init(&ifmgd->ave_beacon_signal); |
17e4ec14 | 4006 | ifmgd->last_cqm_event_signal = 0; |
391a200a | 4007 | ifmgd->count_beacon_signal = 1; |
615f7b9b | 4008 | ifmgd->last_ave_beacon_signal = 0; |
17e4ec14 | 4009 | } else { |
391a200a | 4010 | ifmgd->count_beacon_signal++; |
17e4ec14 | 4011 | } |
615f7b9b | 4012 | |
338c17ae JB |
4013 | ewma_beacon_signal_add(&ifmgd->ave_beacon_signal, -rx_status->signal); |
4014 | ||
615f7b9b MV |
4015 | if (ifmgd->rssi_min_thold != ifmgd->rssi_max_thold && |
4016 | ifmgd->count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) { | |
338c17ae | 4017 | int sig = -ewma_beacon_signal_read(&ifmgd->ave_beacon_signal); |
615f7b9b | 4018 | int last_sig = ifmgd->last_ave_beacon_signal; |
a8182929 EG |
4019 | struct ieee80211_event event = { |
4020 | .type = RSSI_EVENT, | |
4021 | }; | |
615f7b9b MV |
4022 | |
4023 | /* | |
4024 | * if signal crosses either of the boundaries, invoke callback | |
4025 | * with appropriate parameters | |
4026 | */ | |
4027 | if (sig > ifmgd->rssi_max_thold && | |
4028 | (last_sig <= ifmgd->rssi_min_thold || last_sig == 0)) { | |
4029 | ifmgd->last_ave_beacon_signal = sig; | |
a8182929 EG |
4030 | event.u.rssi.data = RSSI_EVENT_HIGH; |
4031 | drv_event_callback(local, sdata, &event); | |
615f7b9b MV |
4032 | } else if (sig < ifmgd->rssi_min_thold && |
4033 | (last_sig >= ifmgd->rssi_max_thold || | |
4034 | last_sig == 0)) { | |
4035 | ifmgd->last_ave_beacon_signal = sig; | |
a8182929 EG |
4036 | event.u.rssi.data = RSSI_EVENT_LOW; |
4037 | drv_event_callback(local, sdata, &event); | |
615f7b9b MV |
4038 | } |
4039 | } | |
4040 | ||
17e4ec14 | 4041 | if (bss_conf->cqm_rssi_thold && |
391a200a | 4042 | ifmgd->count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT && |
ea086359 | 4043 | !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) { |
338c17ae | 4044 | int sig = -ewma_beacon_signal_read(&ifmgd->ave_beacon_signal); |
17e4ec14 JM |
4045 | int last_event = ifmgd->last_cqm_event_signal; |
4046 | int thold = bss_conf->cqm_rssi_thold; | |
4047 | int hyst = bss_conf->cqm_rssi_hyst; | |
338c17ae | 4048 | |
17e4ec14 JM |
4049 | if (sig < thold && |
4050 | (last_event == 0 || sig < last_event - hyst)) { | |
4051 | ifmgd->last_cqm_event_signal = sig; | |
4052 | ieee80211_cqm_rssi_notify( | |
4053 | &sdata->vif, | |
4054 | NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, | |
769f07d8 | 4055 | sig, GFP_KERNEL); |
17e4ec14 JM |
4056 | } else if (sig > thold && |
4057 | (last_event == 0 || sig > last_event + hyst)) { | |
4058 | ifmgd->last_cqm_event_signal = sig; | |
4059 | ieee80211_cqm_rssi_notify( | |
4060 | &sdata->vif, | |
4061 | NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, | |
769f07d8 | 4062 | sig, GFP_KERNEL); |
17e4ec14 JM |
4063 | } |
4064 | } | |
4065 | ||
2c3c5f8c AZ |
4066 | if (bss_conf->cqm_rssi_low && |
4067 | ifmgd->count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) { | |
4068 | int sig = -ewma_beacon_signal_read(&ifmgd->ave_beacon_signal); | |
4069 | int last_event = ifmgd->last_cqm_event_signal; | |
4070 | int low = bss_conf->cqm_rssi_low; | |
4071 | int high = bss_conf->cqm_rssi_high; | |
4072 | ||
4073 | if (sig < low && | |
4074 | (last_event == 0 || last_event >= low)) { | |
4075 | ifmgd->last_cqm_event_signal = sig; | |
4076 | ieee80211_cqm_rssi_notify( | |
4077 | &sdata->vif, | |
4078 | NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, | |
4079 | sig, GFP_KERNEL); | |
4080 | } else if (sig > high && | |
4081 | (last_event == 0 || last_event <= high)) { | |
4082 | ifmgd->last_cqm_event_signal = sig; | |
4083 | ieee80211_cqm_rssi_notify( | |
4084 | &sdata->vif, | |
4085 | NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, | |
4086 | sig, GFP_KERNEL); | |
4087 | } | |
4088 | } | |
1ad22fb5 T |
4089 | } |
4090 | ||
78ac51f8 SS |
4091 | static bool ieee80211_rx_our_beacon(const u8 *tx_bssid, |
4092 | struct cfg80211_bss *bss) | |
4093 | { | |
4094 | if (ether_addr_equal(tx_bssid, bss->bssid)) | |
4095 | return true; | |
4096 | if (!bss->transmitted_bss) | |
4097 | return false; | |
4098 | return ether_addr_equal(tx_bssid, bss->transmitted_bss->bssid); | |
4099 | } | |
4100 | ||
1ad22fb5 | 4101 | static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata, |
09a740ce | 4102 | struct ieee80211_hdr *hdr, size_t len, |
1ad22fb5 T |
4103 | struct ieee80211_rx_status *rx_status) |
4104 | { | |
4105 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
4106 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; | |
09a740ce | 4107 | struct ieee80211_mgmt *mgmt = (void *) hdr; |
1ad22fb5 | 4108 | size_t baselen; |
5d24828d | 4109 | struct ieee802_11_elems *elems; |
1ad22fb5 T |
4110 | struct ieee80211_local *local = sdata->local; |
4111 | struct ieee80211_chanctx_conf *chanctx_conf; | |
4112 | struct ieee80211_channel *chan; | |
4113 | struct sta_info *sta; | |
4114 | u32 changed = 0; | |
4115 | bool erp_valid; | |
4116 | u8 erp_value = 0; | |
09a740ce TP |
4117 | u32 ncrc = 0; |
4118 | u8 *bssid, *variable = mgmt->u.beacon.variable; | |
1ad22fb5 T |
4119 | u8 deauth_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
4120 | ||
4121 | sdata_assert_lock(sdata); | |
4122 | ||
4123 | /* Process beacon from the current BSS */ | |
09a740ce TP |
4124 | bssid = ieee80211_get_bssid(hdr, len, sdata->vif.type); |
4125 | if (ieee80211_is_s1g_beacon(mgmt->frame_control)) { | |
4126 | struct ieee80211_ext *ext = (void *) mgmt; | |
4127 | ||
4128 | if (ieee80211_is_s1g_short_beacon(ext->frame_control)) | |
4129 | variable = ext->u.s1g_short_beacon.variable; | |
4130 | else | |
4131 | variable = ext->u.s1g_beacon.variable; | |
4132 | } | |
4133 | ||
4134 | baselen = (u8 *) variable - (u8 *) mgmt; | |
1ad22fb5 T |
4135 | if (baselen > len) |
4136 | return; | |
4137 | ||
4138 | rcu_read_lock(); | |
4139 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); | |
4140 | if (!chanctx_conf) { | |
4141 | rcu_read_unlock(); | |
4142 | return; | |
4143 | } | |
4144 | ||
3b23c184 TP |
4145 | if (ieee80211_rx_status_to_khz(rx_status) != |
4146 | ieee80211_channel_to_khz(chanctx_conf->def.chan)) { | |
1ad22fb5 T |
4147 | rcu_read_unlock(); |
4148 | return; | |
4149 | } | |
4150 | chan = chanctx_conf->def.chan; | |
4151 | rcu_read_unlock(); | |
4152 | ||
4153 | if (ifmgd->assoc_data && ifmgd->assoc_data->need_beacon && | |
09a740ce | 4154 | ieee80211_rx_our_beacon(bssid, ifmgd->assoc_data->bss)) { |
5d24828d JB |
4155 | elems = ieee802_11_parse_elems(variable, len - baselen, false, |
4156 | bssid, | |
4157 | ifmgd->assoc_data->bss->bssid); | |
4158 | if (!elems) | |
4159 | return; | |
1ad22fb5 | 4160 | |
4abb52a4 | 4161 | ieee80211_rx_bss_info(sdata, mgmt, len, rx_status); |
78ac51f8 | 4162 | |
5d24828d JB |
4163 | if (elems->dtim_period) |
4164 | ifmgd->dtim_period = elems->dtim_period; | |
1ad22fb5 T |
4165 | ifmgd->have_beacon = true; |
4166 | ifmgd->assoc_data->need_beacon = false; | |
4167 | if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY)) { | |
4168 | sdata->vif.bss_conf.sync_tsf = | |
4169 | le64_to_cpu(mgmt->u.beacon.timestamp); | |
4170 | sdata->vif.bss_conf.sync_device_ts = | |
4171 | rx_status->device_timestamp; | |
5d24828d | 4172 | sdata->vif.bss_conf.sync_dtim_count = elems->dtim_count; |
1ad22fb5 | 4173 | } |
78ac51f8 | 4174 | |
5d24828d | 4175 | if (elems->mbssid_config_ie) |
78ac51f8 | 4176 | bss_conf->profile_periodicity = |
5d24828d | 4177 | elems->mbssid_config_ie->profile_periodicity; |
bbc6f03f JB |
4178 | else |
4179 | bss_conf->profile_periodicity = 0; | |
78ac51f8 | 4180 | |
5d24828d JB |
4181 | if (elems->ext_capab_len >= 11 && |
4182 | (elems->ext_capab[10] & WLAN_EXT_CAPA11_EMA_SUPPORT)) | |
78ac51f8 | 4183 | bss_conf->ema_ap = true; |
bbc6f03f JB |
4184 | else |
4185 | bss_conf->ema_ap = false; | |
78ac51f8 | 4186 | |
1ad22fb5 T |
4187 | /* continue assoc process */ |
4188 | ifmgd->assoc_data->timeout = jiffies; | |
4189 | ifmgd->assoc_data->timeout_started = true; | |
4190 | run_again(sdata, ifmgd->assoc_data->timeout); | |
5d24828d | 4191 | kfree(elems); |
1ad22fb5 T |
4192 | return; |
4193 | } | |
4194 | ||
4195 | if (!ifmgd->associated || | |
5dfad108 | 4196 | !ieee80211_rx_our_beacon(bssid, ifmgd->assoc_bss)) |
1ad22fb5 | 4197 | return; |
c8fe4b0b | 4198 | bssid = ifmgd->bssid; |
1ad22fb5 T |
4199 | |
4200 | if (!(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) | |
4201 | ieee80211_handle_beacon_sig(sdata, ifmgd, bss_conf, | |
4202 | local, rx_status); | |
2c3c5f8c | 4203 | |
392b9ffb | 4204 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) { |
bdcbd8e0 | 4205 | mlme_dbg_ratelimited(sdata, |
112c31f0 | 4206 | "cancelling AP probe due to a received beacon\n"); |
392b9ffb | 4207 | ieee80211_reset_ap_probe(sdata); |
92778180 JM |
4208 | } |
4209 | ||
b291ba11 JB |
4210 | /* |
4211 | * Push the beacon loss detection into the future since | |
4212 | * we are processing a beacon from the AP just now. | |
4213 | */ | |
d3a910a8 | 4214 | ieee80211_sta_reset_beacon_monitor(sdata); |
b291ba11 | 4215 | |
09a740ce TP |
4216 | /* TODO: CRC urrently not calculated on S1G Beacon Compatibility |
4217 | * element (which carries the beacon interval). Don't forget to add a | |
4218 | * bit to care_about_ies[] above if mac80211 is interested in a | |
4219 | * changing S1G element. | |
4220 | */ | |
4221 | if (!ieee80211_is_s1g_beacon(hdr->frame_control)) | |
4222 | ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4); | |
5d24828d JB |
4223 | elems = ieee802_11_parse_elems_crc(variable, len - baselen, |
4224 | false, care_about_ies, ncrc, | |
4225 | mgmt->bssid, bssid); | |
4226 | if (!elems) | |
4227 | return; | |
4228 | ncrc = elems->crc; | |
d91f36db | 4229 | |
90d13e8f | 4230 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && |
5d24828d | 4231 | ieee80211_check_tim(elems->tim, elems->tim_len, bss_conf->aid)) { |
90d13e8f JB |
4232 | if (local->hw.conf.dynamic_ps_timeout > 0) { |
4233 | if (local->hw.conf.flags & IEEE80211_CONF_PS) { | |
4234 | local->hw.conf.flags &= ~IEEE80211_CONF_PS; | |
4235 | ieee80211_hw_config(local, | |
4236 | IEEE80211_CONF_CHANGE_PS); | |
572e0012 | 4237 | } |
076cdcb1 | 4238 | ieee80211_send_nullfunc(local, sdata, false); |
90d13e8f JB |
4239 | } else if (!local->pspolling && sdata->u.mgd.powersave) { |
4240 | local->pspolling = true; | |
4241 | ||
4242 | /* | |
4243 | * Here is assumed that the driver will be | |
4244 | * able to send ps-poll frame and receive a | |
4245 | * response even though power save mode is | |
4246 | * enabled, but some drivers might require | |
4247 | * to disable power save here. This needs | |
4248 | * to be investigated. | |
4249 | */ | |
4250 | ieee80211_send_pspoll(local, sdata); | |
a97b77b9 VN |
4251 | } |
4252 | } | |
7a5158ef | 4253 | |
b115b972 JD |
4254 | if (sdata->vif.p2p || |
4255 | sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) { | |
67baf663 | 4256 | struct ieee80211_p2p_noa_attr noa = {}; |
488dd7b5 JB |
4257 | int ret; |
4258 | ||
09a740ce | 4259 | ret = cfg80211_get_p2p_attr(variable, |
488dd7b5 JB |
4260 | len - baselen, |
4261 | IEEE80211_P2P_ATTR_ABSENCE_NOTICE, | |
934457ee | 4262 | (u8 *) &noa, sizeof(noa)); |
67baf663 JD |
4263 | if (ret >= 2) { |
4264 | if (sdata->u.mgd.p2p_noa_index != noa.index) { | |
4265 | /* valid noa_attr and index changed */ | |
4266 | sdata->u.mgd.p2p_noa_index = noa.index; | |
4267 | memcpy(&bss_conf->p2p_noa_attr, &noa, sizeof(noa)); | |
4268 | changed |= BSS_CHANGED_P2P_PS; | |
4269 | /* | |
4270 | * make sure we update all information, the CRC | |
4271 | * mechanism doesn't look at P2P attributes. | |
4272 | */ | |
4273 | ifmgd->beacon_crc_valid = false; | |
4274 | } | |
4275 | } else if (sdata->u.mgd.p2p_noa_index != -1) { | |
4276 | /* noa_attr not found and we had valid noa_attr before */ | |
4277 | sdata->u.mgd.p2p_noa_index = -1; | |
4278 | memset(&bss_conf->p2p_noa_attr, 0, sizeof(bss_conf->p2p_noa_attr)); | |
488dd7b5 | 4279 | changed |= BSS_CHANGED_P2P_PS; |
488dd7b5 JB |
4280 | ifmgd->beacon_crc_valid = false; |
4281 | } | |
4282 | } | |
4283 | ||
0c21e632 LC |
4284 | if (ifmgd->csa_waiting_bcn) |
4285 | ieee80211_chswitch_post_beacon(sdata); | |
4286 | ||
2ecc3905 AB |
4287 | /* |
4288 | * Update beacon timing and dtim count on every beacon appearance. This | |
4289 | * will allow the driver to use the most updated values. Do it before | |
4290 | * comparing this one with last received beacon. | |
4291 | * IMPORTANT: These parameters would possibly be out of sync by the time | |
4292 | * the driver will use them. The synchronized view is currently | |
4293 | * guaranteed only in certain callbacks. | |
4294 | */ | |
09a740ce TP |
4295 | if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY) && |
4296 | !ieee80211_is_s1g_beacon(hdr->frame_control)) { | |
2ecc3905 AB |
4297 | sdata->vif.bss_conf.sync_tsf = |
4298 | le64_to_cpu(mgmt->u.beacon.timestamp); | |
4299 | sdata->vif.bss_conf.sync_device_ts = | |
4300 | rx_status->device_timestamp; | |
5d24828d | 4301 | sdata->vif.bss_conf.sync_dtim_count = elems->dtim_count; |
2ecc3905 AB |
4302 | } |
4303 | ||
09a740ce TP |
4304 | if ((ncrc == ifmgd->beacon_crc && ifmgd->beacon_crc_valid) || |
4305 | ieee80211_is_s1g_short_beacon(mgmt->frame_control)) | |
5d24828d | 4306 | goto free; |
30196673 | 4307 | ifmgd->beacon_crc = ncrc; |
d8ec4433 | 4308 | ifmgd->beacon_crc_valid = true; |
30196673 | 4309 | |
4abb52a4 | 4310 | ieee80211_rx_bss_info(sdata, mgmt, len, rx_status); |
7d25745d | 4311 | |
d70b7616 | 4312 | ieee80211_sta_process_chanswitch(sdata, rx_status->mactime, |
2ba45384 | 4313 | rx_status->device_timestamp, |
5d24828d | 4314 | elems, true); |
d70b7616 | 4315 | |
095d81ce | 4316 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_WMM) && |
5d24828d JB |
4317 | ieee80211_sta_wmm_params(local, sdata, elems->wmm_param, |
4318 | elems->wmm_param_len, | |
4319 | elems->mu_edca_param_set)) | |
7d25745d JB |
4320 | changed |= BSS_CHANGED_QOS; |
4321 | ||
c65dd147 EG |
4322 | /* |
4323 | * If we haven't had a beacon before, tell the driver about the | |
ef429dad | 4324 | * DTIM period (and beacon timing if desired) now. |
c65dd147 | 4325 | */ |
989c6505 | 4326 | if (!ifmgd->have_beacon) { |
c65dd147 | 4327 | /* a few bogus AP send dtim_period = 0 or no TIM IE */ |
5d24828d | 4328 | bss_conf->dtim_period = elems->dtim_period ?: 1; |
ef429dad | 4329 | |
989c6505 AB |
4330 | changed |= BSS_CHANGED_BEACON_INFO; |
4331 | ifmgd->have_beacon = true; | |
482a9c74 AB |
4332 | |
4333 | mutex_lock(&local->iflist_mtx); | |
4a733ef1 | 4334 | ieee80211_recalc_ps(local); |
482a9c74 AB |
4335 | mutex_unlock(&local->iflist_mtx); |
4336 | ||
ce857888 | 4337 | ieee80211_recalc_ps_vif(sdata); |
c65dd147 EG |
4338 | } |
4339 | ||
5d24828d | 4340 | if (elems->erp_info) { |
7a5158ef | 4341 | erp_valid = true; |
5d24828d | 4342 | erp_value = elems->erp_info[0]; |
7a5158ef JB |
4343 | } else { |
4344 | erp_valid = false; | |
50c4afb9 | 4345 | } |
09a740ce TP |
4346 | |
4347 | if (!ieee80211_is_s1g_beacon(hdr->frame_control)) | |
4348 | changed |= ieee80211_handle_bss_capability(sdata, | |
4349 | le16_to_cpu(mgmt->u.beacon.capab_info), | |
4350 | erp_valid, erp_value); | |
f0706e82 | 4351 | |
1128958d | 4352 | mutex_lock(&local->sta_mtx); |
bee7f586 JB |
4353 | sta = sta_info_get(sdata, bssid); |
4354 | ||
5d24828d | 4355 | changed |= ieee80211_recalc_twt_req(sdata, sta, elems); |
c9d3245e | 4356 | |
5d24828d JB |
4357 | if (ieee80211_config_bw(sdata, sta, elems->ht_cap_elem, |
4358 | elems->vht_cap_elem, elems->ht_operation, | |
4359 | elems->vht_operation, elems->he_operation, | |
5dca295d | 4360 | elems->eht_operation, |
5d24828d | 4361 | elems->s1g_oper, bssid, &changed)) { |
30eb1dc2 | 4362 | mutex_unlock(&local->sta_mtx); |
89f774e6 JB |
4363 | sdata_info(sdata, |
4364 | "failed to follow AP %pM bandwidth change, disconnect\n", | |
4365 | bssid); | |
30eb1dc2 JB |
4366 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
4367 | WLAN_REASON_DEAUTH_LEAVING, | |
4368 | true, deauth_buf); | |
a90faa9d EG |
4369 | ieee80211_report_disconnect(sdata, deauth_buf, |
4370 | sizeof(deauth_buf), true, | |
3f8a39ff JB |
4371 | WLAN_REASON_DEAUTH_LEAVING, |
4372 | false); | |
5d24828d | 4373 | goto free; |
30eb1dc2 | 4374 | } |
bee7f586 | 4375 | |
5d24828d JB |
4376 | if (sta && elems->opmode_notif) |
4377 | ieee80211_vht_handle_opmode(sdata, sta, *elems->opmode_notif, | |
cf1e05c6 | 4378 | rx_status->band); |
1128958d | 4379 | mutex_unlock(&local->sta_mtx); |
d3c990fb | 4380 | |
24a4e400 | 4381 | changed |= ieee80211_handle_pwr_constr(sdata, chan, mgmt, |
5d24828d JB |
4382 | elems->country_elem, |
4383 | elems->country_elem_len, | |
4384 | elems->pwr_constr_elem, | |
4385 | elems->cisco_dtpc_elem); | |
3f2355cb | 4386 | |
471b3efd | 4387 | ieee80211_bss_info_change_notify(sdata, changed); |
5d24828d JB |
4388 | free: |
4389 | kfree(elems); | |
f0706e82 JB |
4390 | } |
4391 | ||
09a740ce TP |
4392 | void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, |
4393 | struct sk_buff *skb) | |
4394 | { | |
4395 | struct ieee80211_rx_status *rx_status; | |
4396 | struct ieee80211_hdr *hdr; | |
4397 | u16 fc; | |
4398 | ||
4399 | rx_status = (struct ieee80211_rx_status *) skb->cb; | |
4400 | hdr = (struct ieee80211_hdr *) skb->data; | |
4401 | fc = le16_to_cpu(hdr->frame_control); | |
4402 | ||
4403 | sdata_lock(sdata); | |
4404 | switch (fc & IEEE80211_FCTL_STYPE) { | |
4405 | case IEEE80211_STYPE_S1G_BEACON: | |
4406 | ieee80211_rx_mgmt_beacon(sdata, hdr, skb->len, rx_status); | |
4407 | break; | |
4408 | } | |
4409 | sdata_unlock(sdata); | |
4410 | } | |
4411 | ||
1fa57d01 JB |
4412 | void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, |
4413 | struct sk_buff *skb) | |
f0706e82 JB |
4414 | { |
4415 | struct ieee80211_rx_status *rx_status; | |
f0706e82 JB |
4416 | struct ieee80211_mgmt *mgmt; |
4417 | u16 fc; | |
1b3a2e49 | 4418 | int ies_len; |
f0706e82 | 4419 | |
f0706e82 JB |
4420 | rx_status = (struct ieee80211_rx_status *) skb->cb; |
4421 | mgmt = (struct ieee80211_mgmt *) skb->data; | |
4422 | fc = le16_to_cpu(mgmt->frame_control); | |
4423 | ||
8d61ffa5 | 4424 | sdata_lock(sdata); |
77fdaa12 | 4425 | |
66e67e41 JB |
4426 | switch (fc & IEEE80211_FCTL_STYPE) { |
4427 | case IEEE80211_STYPE_BEACON: | |
09a740ce TP |
4428 | ieee80211_rx_mgmt_beacon(sdata, (void *)mgmt, |
4429 | skb->len, rx_status); | |
66e67e41 JB |
4430 | break; |
4431 | case IEEE80211_STYPE_PROBE_RESP: | |
4432 | ieee80211_rx_mgmt_probe_resp(sdata, skb); | |
4433 | break; | |
4434 | case IEEE80211_STYPE_AUTH: | |
8d61ffa5 | 4435 | ieee80211_rx_mgmt_auth(sdata, mgmt, skb->len); |
66e67e41 JB |
4436 | break; |
4437 | case IEEE80211_STYPE_DEAUTH: | |
8d61ffa5 | 4438 | ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len); |
66e67e41 JB |
4439 | break; |
4440 | case IEEE80211_STYPE_DISASSOC: | |
8d61ffa5 | 4441 | ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len); |
66e67e41 JB |
4442 | break; |
4443 | case IEEE80211_STYPE_ASSOC_RESP: | |
4444 | case IEEE80211_STYPE_REASSOC_RESP: | |
8d61ffa5 | 4445 | ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len); |
66e67e41 JB |
4446 | break; |
4447 | case IEEE80211_STYPE_ACTION: | |
37799e52 | 4448 | if (mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) { |
5d24828d JB |
4449 | struct ieee802_11_elems *elems; |
4450 | ||
1b3a2e49 JB |
4451 | ies_len = skb->len - |
4452 | offsetof(struct ieee80211_mgmt, | |
4453 | u.action.u.chan_switch.variable); | |
37799e52 JB |
4454 | |
4455 | if (ies_len < 0) | |
4456 | break; | |
4457 | ||
4abb52a4 | 4458 | /* CSA IE cannot be overridden, no need for BSSID */ |
5d24828d JB |
4459 | elems = ieee802_11_parse_elems( |
4460 | mgmt->u.action.u.chan_switch.variable, | |
4461 | ies_len, true, mgmt->bssid, NULL); | |
37799e52 | 4462 | |
8223ac19 JB |
4463 | if (elems && !elems->parse_error) |
4464 | ieee80211_sta_process_chanswitch(sdata, | |
4465 | rx_status->mactime, | |
4466 | rx_status->device_timestamp, | |
4467 | elems, false); | |
5d24828d | 4468 | kfree(elems); |
1b3a2e49 | 4469 | } else if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) { |
5d24828d JB |
4470 | struct ieee802_11_elems *elems; |
4471 | ||
1b3a2e49 JB |
4472 | ies_len = skb->len - |
4473 | offsetof(struct ieee80211_mgmt, | |
4474 | u.action.u.ext_chan_switch.variable); | |
4475 | ||
4476 | if (ies_len < 0) | |
4477 | break; | |
4478 | ||
4abb52a4 SS |
4479 | /* |
4480 | * extended CSA IE can't be overridden, no need for | |
4481 | * BSSID | |
4482 | */ | |
5d24828d JB |
4483 | elems = ieee802_11_parse_elems( |
4484 | mgmt->u.action.u.ext_chan_switch.variable, | |
4485 | ies_len, true, mgmt->bssid, NULL); | |
1b3a2e49 | 4486 | |
8223ac19 JB |
4487 | if (elems && !elems->parse_error) { |
4488 | /* for the handling code pretend it was an IE */ | |
4489 | elems->ext_chansw_ie = | |
4490 | &mgmt->u.action.u.ext_chan_switch.data; | |
1b3a2e49 | 4491 | |
8223ac19 JB |
4492 | ieee80211_sta_process_chanswitch(sdata, |
4493 | rx_status->mactime, | |
4494 | rx_status->device_timestamp, | |
4495 | elems, false); | |
4496 | } | |
1b3a2e49 | 4497 | |
5d24828d | 4498 | kfree(elems); |
77fdaa12 | 4499 | } |
37799e52 | 4500 | break; |
77fdaa12 | 4501 | } |
8d61ffa5 | 4502 | sdata_unlock(sdata); |
f0706e82 JB |
4503 | } |
4504 | ||
34f11cd3 | 4505 | static void ieee80211_sta_timer(struct timer_list *t) |
f0706e82 | 4506 | { |
60f8b39c | 4507 | struct ieee80211_sub_if_data *sdata = |
34f11cd3 | 4508 | from_timer(sdata, t, u.mgd.timer); |
5bb644a0 | 4509 | |
9b7d72c1 | 4510 | ieee80211_queue_work(&sdata->local->hw, &sdata->work); |
f0706e82 JB |
4511 | } |
4512 | ||
7dd231eb | 4513 | void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, |
53da4c45 | 4514 | u8 reason, bool tx) |
04ac3c0e | 4515 | { |
6ae16775 | 4516 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
04ac3c0e | 4517 | |
37ad3888 | 4518 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason, |
6b684db1 | 4519 | tx, frame_buf); |
37ad3888 | 4520 | |
a90faa9d | 4521 | ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, |
3f8a39ff | 4522 | reason, false); |
04ac3c0e FF |
4523 | } |
4524 | ||
46cad4b7 | 4525 | static int ieee80211_auth(struct ieee80211_sub_if_data *sdata) |
66e67e41 JB |
4526 | { |
4527 | struct ieee80211_local *local = sdata->local; | |
4528 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
4529 | struct ieee80211_mgd_auth_data *auth_data = ifmgd->auth_data; | |
1672c0e3 | 4530 | u32 tx_flags = 0; |
46cad4b7 JB |
4531 | u16 trans = 1; |
4532 | u16 status = 0; | |
15fae341 JB |
4533 | struct ieee80211_prep_tx_info info = { |
4534 | .subtype = IEEE80211_STYPE_AUTH, | |
4535 | }; | |
66e67e41 | 4536 | |
8d61ffa5 | 4537 | sdata_assert_lock(sdata); |
66e67e41 JB |
4538 | |
4539 | if (WARN_ON_ONCE(!auth_data)) | |
4540 | return -EINVAL; | |
4541 | ||
66e67e41 JB |
4542 | auth_data->tries++; |
4543 | ||
4544 | if (auth_data->tries > IEEE80211_AUTH_MAX_TRIES) { | |
bdcbd8e0 JB |
4545 | sdata_info(sdata, "authentication with %pM timed out\n", |
4546 | auth_data->bss->bssid); | |
66e67e41 JB |
4547 | |
4548 | /* | |
4549 | * Most likely AP is not in the range so remove the | |
4550 | * bss struct for that AP. | |
4551 | */ | |
4552 | cfg80211_unlink_bss(local->hw.wiphy, auth_data->bss); | |
4553 | ||
4554 | return -ETIMEDOUT; | |
4555 | } | |
4556 | ||
d4e36e55 | 4557 | if (auth_data->algorithm == WLAN_AUTH_SAE) |
15fae341 | 4558 | info.duration = jiffies_to_msecs(IEEE80211_AUTH_TIMEOUT_SAE); |
d4e36e55 | 4559 | |
15fae341 | 4560 | drv_mgd_prepare_tx(local, sdata, &info); |
a1845fc7 | 4561 | |
46cad4b7 JB |
4562 | sdata_info(sdata, "send auth to %pM (try %d/%d)\n", |
4563 | auth_data->bss->bssid, auth_data->tries, | |
4564 | IEEE80211_AUTH_MAX_TRIES); | |
66e67e41 | 4565 | |
46cad4b7 | 4566 | auth_data->expected_transaction = 2; |
6b8ece3a | 4567 | |
46cad4b7 JB |
4568 | if (auth_data->algorithm == WLAN_AUTH_SAE) { |
4569 | trans = auth_data->sae_trans; | |
4570 | status = auth_data->sae_status; | |
4571 | auth_data->expected_transaction = trans; | |
4572 | } | |
66e67e41 | 4573 | |
46cad4b7 JB |
4574 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
4575 | tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | | |
4576 | IEEE80211_TX_INTFL_MLME_CONN_TX; | |
66e67e41 | 4577 | |
46cad4b7 JB |
4578 | ieee80211_send_auth(sdata, trans, auth_data->algorithm, status, |
4579 | auth_data->data, auth_data->data_len, | |
4580 | auth_data->bss->bssid, | |
4581 | auth_data->bss->bssid, NULL, 0, 0, | |
4582 | tx_flags); | |
66e67e41 | 4583 | |
6211dd12 | 4584 | if (tx_flags == 0) { |
407879b6 IP |
4585 | if (auth_data->algorithm == WLAN_AUTH_SAE) |
4586 | auth_data->timeout = jiffies + | |
4587 | IEEE80211_AUTH_TIMEOUT_SAE; | |
4588 | else | |
4589 | auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; | |
89afe614 | 4590 | } else { |
cb236d2d JB |
4591 | auth_data->timeout = |
4592 | round_jiffies_up(jiffies + IEEE80211_AUTH_TIMEOUT_LONG); | |
1672c0e3 | 4593 | } |
66e67e41 | 4594 | |
407879b6 IP |
4595 | auth_data->timeout_started = true; |
4596 | run_again(sdata, auth_data->timeout); | |
4597 | ||
66e67e41 JB |
4598 | return 0; |
4599 | } | |
4600 | ||
4601 | static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) | |
4602 | { | |
4603 | struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; | |
4604 | struct ieee80211_local *local = sdata->local; | |
a72c01a9 | 4605 | int ret; |
66e67e41 | 4606 | |
8d61ffa5 | 4607 | sdata_assert_lock(sdata); |
66e67e41 | 4608 | |
66e67e41 JB |
4609 | assoc_data->tries++; |
4610 | if (assoc_data->tries > IEEE80211_ASSOC_MAX_TRIES) { | |
bdcbd8e0 JB |
4611 | sdata_info(sdata, "association with %pM timed out\n", |
4612 | assoc_data->bss->bssid); | |
66e67e41 JB |
4613 | |
4614 | /* | |
4615 | * Most likely AP is not in the range so remove the | |
4616 | * bss struct for that AP. | |
4617 | */ | |
4618 | cfg80211_unlink_bss(local->hw.wiphy, assoc_data->bss); | |
4619 | ||
4620 | return -ETIMEDOUT; | |
4621 | } | |
4622 | ||
bdcbd8e0 JB |
4623 | sdata_info(sdata, "associate with %pM (try %d/%d)\n", |
4624 | assoc_data->bss->bssid, assoc_data->tries, | |
4625 | IEEE80211_ASSOC_MAX_TRIES); | |
a72c01a9 JJ |
4626 | ret = ieee80211_send_assoc(sdata); |
4627 | if (ret) | |
4628 | return ret; | |
66e67e41 | 4629 | |
30686bf7 | 4630 | if (!ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) { |
1672c0e3 | 4631 | assoc_data->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT; |
89afe614 | 4632 | assoc_data->timeout_started = true; |
8d61ffa5 | 4633 | run_again(sdata, assoc_data->timeout); |
89afe614 | 4634 | } else { |
cb236d2d JB |
4635 | assoc_data->timeout = |
4636 | round_jiffies_up(jiffies + | |
4637 | IEEE80211_ASSOC_TIMEOUT_LONG); | |
4638 | assoc_data->timeout_started = true; | |
4639 | run_again(sdata, assoc_data->timeout); | |
1672c0e3 | 4640 | } |
66e67e41 JB |
4641 | |
4642 | return 0; | |
4643 | } | |
4644 | ||
1672c0e3 JB |
4645 | void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, |
4646 | __le16 fc, bool acked) | |
4647 | { | |
4648 | struct ieee80211_local *local = sdata->local; | |
4649 | ||
4650 | sdata->u.mgd.status_fc = fc; | |
4651 | sdata->u.mgd.status_acked = acked; | |
4652 | sdata->u.mgd.status_received = true; | |
4653 | ||
4654 | ieee80211_queue_work(&local->hw, &sdata->work); | |
4655 | } | |
4656 | ||
1fa57d01 | 4657 | void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) |
9c6bd790 | 4658 | { |
9c6bd790 | 4659 | struct ieee80211_local *local = sdata->local; |
1fa57d01 | 4660 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
9c6bd790 | 4661 | |
8d61ffa5 | 4662 | sdata_lock(sdata); |
77fdaa12 | 4663 | |
1672c0e3 JB |
4664 | if (ifmgd->status_received) { |
4665 | __le16 fc = ifmgd->status_fc; | |
4666 | bool status_acked = ifmgd->status_acked; | |
4667 | ||
4668 | ifmgd->status_received = false; | |
46cad4b7 | 4669 | if (ifmgd->auth_data && ieee80211_is_auth(fc)) { |
1672c0e3 | 4670 | if (status_acked) { |
407879b6 IP |
4671 | if (ifmgd->auth_data->algorithm == |
4672 | WLAN_AUTH_SAE) | |
4673 | ifmgd->auth_data->timeout = | |
4674 | jiffies + | |
4675 | IEEE80211_AUTH_TIMEOUT_SAE; | |
4676 | else | |
4677 | ifmgd->auth_data->timeout = | |
4678 | jiffies + | |
4679 | IEEE80211_AUTH_TIMEOUT_SHORT; | |
8d61ffa5 | 4680 | run_again(sdata, ifmgd->auth_data->timeout); |
1672c0e3 JB |
4681 | } else { |
4682 | ifmgd->auth_data->timeout = jiffies - 1; | |
4683 | } | |
89afe614 | 4684 | ifmgd->auth_data->timeout_started = true; |
1672c0e3 JB |
4685 | } else if (ifmgd->assoc_data && |
4686 | (ieee80211_is_assoc_req(fc) || | |
4687 | ieee80211_is_reassoc_req(fc))) { | |
4688 | if (status_acked) { | |
4689 | ifmgd->assoc_data->timeout = | |
4690 | jiffies + IEEE80211_ASSOC_TIMEOUT_SHORT; | |
8d61ffa5 | 4691 | run_again(sdata, ifmgd->assoc_data->timeout); |
1672c0e3 JB |
4692 | } else { |
4693 | ifmgd->assoc_data->timeout = jiffies - 1; | |
4694 | } | |
89afe614 | 4695 | ifmgd->assoc_data->timeout_started = true; |
1672c0e3 JB |
4696 | } |
4697 | } | |
4698 | ||
89afe614 | 4699 | if (ifmgd->auth_data && ifmgd->auth_data->timeout_started && |
66e67e41 | 4700 | time_after(jiffies, ifmgd->auth_data->timeout)) { |
94d9864c | 4701 | if (ifmgd->auth_data->done || ifmgd->auth_data->waiting) { |
66e67e41 | 4702 | /* |
94d9864c JB |
4703 | * ok ... we waited for assoc or continuation but |
4704 | * userspace didn't do it, so kill the auth data | |
66e67e41 JB |
4705 | */ |
4706 | ieee80211_destroy_auth_data(sdata, false); | |
46cad4b7 | 4707 | } else if (ieee80211_auth(sdata)) { |
66e67e41 | 4708 | u8 bssid[ETH_ALEN]; |
a9409093 EG |
4709 | struct ieee80211_event event = { |
4710 | .type = MLME_EVENT, | |
4711 | .u.mlme.data = AUTH_EVENT, | |
4712 | .u.mlme.status = MLME_TIMEOUT, | |
4713 | }; | |
66e67e41 JB |
4714 | |
4715 | memcpy(bssid, ifmgd->auth_data->bss->bssid, ETH_ALEN); | |
4716 | ||
4717 | ieee80211_destroy_auth_data(sdata, false); | |
4718 | ||
6ff57cf8 | 4719 | cfg80211_auth_timeout(sdata->dev, bssid); |
a9409093 | 4720 | drv_event_callback(sdata->local, sdata, &event); |
66e67e41 | 4721 | } |
89afe614 | 4722 | } else if (ifmgd->auth_data && ifmgd->auth_data->timeout_started) |
8d61ffa5 | 4723 | run_again(sdata, ifmgd->auth_data->timeout); |
66e67e41 | 4724 | |
89afe614 | 4725 | if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started && |
66e67e41 | 4726 | time_after(jiffies, ifmgd->assoc_data->timeout)) { |
989c6505 | 4727 | if ((ifmgd->assoc_data->need_beacon && !ifmgd->have_beacon) || |
66e67e41 | 4728 | ieee80211_do_assoc(sdata)) { |
959867fa | 4729 | struct cfg80211_bss *bss = ifmgd->assoc_data->bss; |
d0d1a12f EG |
4730 | struct ieee80211_event event = { |
4731 | .type = MLME_EVENT, | |
4732 | .u.mlme.data = ASSOC_EVENT, | |
4733 | .u.mlme.status = MLME_TIMEOUT, | |
4734 | }; | |
66e67e41 | 4735 | |
e6f462df | 4736 | ieee80211_destroy_assoc_data(sdata, false, false); |
959867fa | 4737 | cfg80211_assoc_timeout(sdata->dev, bss); |
d0d1a12f | 4738 | drv_event_callback(sdata->local, sdata, &event); |
66e67e41 | 4739 | } |
89afe614 | 4740 | } else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started) |
8d61ffa5 | 4741 | run_again(sdata, ifmgd->assoc_data->timeout); |
66e67e41 | 4742 | |
392b9ffb | 4743 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL && |
b291ba11 | 4744 | ifmgd->associated) { |
16d0364c | 4745 | u8 *bssid = ifmgd->bssid; |
72a8a3ed | 4746 | int max_tries; |
a43abf29 | 4747 | |
30686bf7 | 4748 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
180205bd | 4749 | max_tries = max_nullfunc_tries; |
72a8a3ed | 4750 | else |
180205bd | 4751 | max_tries = max_probe_tries; |
72a8a3ed | 4752 | |
4e5ff376 FF |
4753 | /* ACK received for nullfunc probing frame */ |
4754 | if (!ifmgd->probe_send_count) | |
4755 | ieee80211_reset_ap_probe(sdata); | |
04ac3c0e FF |
4756 | else if (ifmgd->nullfunc_failed) { |
4757 | if (ifmgd->probe_send_count < max_tries) { | |
bdcbd8e0 JB |
4758 | mlme_dbg(sdata, |
4759 | "No ack for nullfunc frame to AP %pM, try %d/%i\n", | |
4760 | bssid, ifmgd->probe_send_count, | |
4761 | max_tries); | |
04ac3c0e FF |
4762 | ieee80211_mgd_probe_ap_send(sdata); |
4763 | } else { | |
bdcbd8e0 JB |
4764 | mlme_dbg(sdata, |
4765 | "No ack for nullfunc frame to AP %pM, disconnecting.\n", | |
4766 | bssid); | |
53da4c45 | 4767 | ieee80211_sta_connection_lost(sdata, |
6b684db1 JB |
4768 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, |
4769 | false); | |
04ac3c0e FF |
4770 | } |
4771 | } else if (time_is_after_jiffies(ifmgd->probe_timeout)) | |
8d61ffa5 | 4772 | run_again(sdata, ifmgd->probe_timeout); |
30686bf7 | 4773 | else if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) { |
bdcbd8e0 JB |
4774 | mlme_dbg(sdata, |
4775 | "Failed to send nullfunc to AP %pM after %dms, disconnecting\n", | |
4776 | bssid, probe_wait_ms); | |
53da4c45 | 4777 | ieee80211_sta_connection_lost(sdata, |
6b684db1 | 4778 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false); |
04ac3c0e | 4779 | } else if (ifmgd->probe_send_count < max_tries) { |
bdcbd8e0 JB |
4780 | mlme_dbg(sdata, |
4781 | "No probe response from AP %pM after %dms, try %d/%i\n", | |
4782 | bssid, probe_wait_ms, | |
4783 | ifmgd->probe_send_count, max_tries); | |
a43abf29 ML |
4784 | ieee80211_mgd_probe_ap_send(sdata); |
4785 | } else { | |
b291ba11 JB |
4786 | /* |
4787 | * We actually lost the connection ... or did we? | |
4788 | * Let's make sure! | |
4789 | */ | |
89f774e6 JB |
4790 | mlme_dbg(sdata, |
4791 | "No probe response from AP %pM after %dms, disconnecting.\n", | |
4792 | bssid, probe_wait_ms); | |
04ac3c0e | 4793 | |
53da4c45 | 4794 | ieee80211_sta_connection_lost(sdata, |
6b684db1 | 4795 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false); |
b291ba11 JB |
4796 | } |
4797 | } | |
4798 | ||
8d61ffa5 | 4799 | sdata_unlock(sdata); |
f0706e82 JB |
4800 | } |
4801 | ||
34f11cd3 | 4802 | static void ieee80211_sta_bcn_mon_timer(struct timer_list *t) |
b291ba11 JB |
4803 | { |
4804 | struct ieee80211_sub_if_data *sdata = | |
34f11cd3 | 4805 | from_timer(sdata, t, u.mgd.bcn_mon_timer); |
0c21e632 | 4806 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
b291ba11 | 4807 | |
0c21e632 | 4808 | if (sdata->vif.csa_active && !ifmgd->csa_waiting_bcn) |
e5593f56 MK |
4809 | return; |
4810 | ||
0b91111f LP |
4811 | if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) |
4812 | return; | |
4813 | ||
682bd38b | 4814 | sdata->u.mgd.connection_loss = false; |
1e4dcd01 JO |
4815 | ieee80211_queue_work(&sdata->local->hw, |
4816 | &sdata->u.mgd.beacon_connection_loss_work); | |
b291ba11 JB |
4817 | } |
4818 | ||
34f11cd3 | 4819 | static void ieee80211_sta_conn_mon_timer(struct timer_list *t) |
b291ba11 JB |
4820 | { |
4821 | struct ieee80211_sub_if_data *sdata = | |
34f11cd3 | 4822 | from_timer(sdata, t, u.mgd.conn_mon_timer); |
b291ba11 JB |
4823 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
4824 | struct ieee80211_local *local = sdata->local; | |
9abf4e49 FF |
4825 | struct sta_info *sta; |
4826 | unsigned long timeout; | |
b291ba11 | 4827 | |
0c21e632 | 4828 | if (sdata->vif.csa_active && !ifmgd->csa_waiting_bcn) |
e5593f56 MK |
4829 | return; |
4830 | ||
9abf4e49 FF |
4831 | sta = sta_info_get(sdata, ifmgd->bssid); |
4832 | if (!sta) | |
4833 | return; | |
4834 | ||
046d2e7c S |
4835 | timeout = sta->deflink.status_stats.last_ack; |
4836 | if (time_before(sta->deflink.status_stats.last_ack, sta->deflink.rx_stats.last_rx)) | |
4837 | timeout = sta->deflink.rx_stats.last_rx; | |
9abf4e49 FF |
4838 | timeout += IEEE80211_CONNECTION_IDLE_TIME; |
4839 | ||
7d73cd94 BG |
4840 | /* If timeout is after now, then update timer to fire at |
4841 | * the later date, but do not actually probe at this time. | |
4842 | */ | |
4843 | if (time_is_after_jiffies(timeout)) { | |
9abf4e49 FF |
4844 | mod_timer(&ifmgd->conn_mon_timer, round_jiffies_up(timeout)); |
4845 | return; | |
4846 | } | |
4847 | ||
42935eca | 4848 | ieee80211_queue_work(&local->hw, &ifmgd->monitor_work); |
b291ba11 JB |
4849 | } |
4850 | ||
4851 | static void ieee80211_sta_monitor_work(struct work_struct *work) | |
4852 | { | |
4853 | struct ieee80211_sub_if_data *sdata = | |
4854 | container_of(work, struct ieee80211_sub_if_data, | |
4855 | u.mgd.monitor_work); | |
4856 | ||
4857 | ieee80211_mgd_probe_ap(sdata, false); | |
4858 | } | |
4859 | ||
9c6bd790 JB |
4860 | static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) |
4861 | { | |
ad935687 | 4862 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { |
925e64c3 | 4863 | __ieee80211_stop_poll(sdata); |
ad935687 | 4864 | |
b291ba11 | 4865 | /* let's probe the connection once */ |
30686bf7 | 4866 | if (!ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) |
494f1fe5 EP |
4867 | ieee80211_queue_work(&sdata->local->hw, |
4868 | &sdata->u.mgd.monitor_work); | |
ad935687 | 4869 | } |
9c6bd790 | 4870 | } |
f0706e82 | 4871 | |
b8360ab8 | 4872 | #ifdef CONFIG_PM |
1a1cb744 JB |
4873 | void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata) |
4874 | { | |
4875 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
4876 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; | |
4877 | ||
4878 | sdata_lock(sdata); | |
4879 | ||
c52666ae EG |
4880 | if (ifmgd->auth_data || ifmgd->assoc_data) { |
4881 | const u8 *bssid = ifmgd->auth_data ? | |
4882 | ifmgd->auth_data->bss->bssid : | |
4883 | ifmgd->assoc_data->bss->bssid; | |
4884 | ||
1a1cb744 | 4885 | /* |
c52666ae EG |
4886 | * If we are trying to authenticate / associate while suspending, |
4887 | * cfg80211 won't know and won't actually abort those attempts, | |
4888 | * thus we need to do that ourselves. | |
1a1cb744 | 4889 | */ |
4b08d1b6 | 4890 | ieee80211_send_deauth_disassoc(sdata, bssid, bssid, |
1a1cb744 JB |
4891 | IEEE80211_STYPE_DEAUTH, |
4892 | WLAN_REASON_DEAUTH_LEAVING, | |
4893 | false, frame_buf); | |
c52666ae | 4894 | if (ifmgd->assoc_data) |
e6f462df | 4895 | ieee80211_destroy_assoc_data(sdata, false, true); |
c52666ae EG |
4896 | if (ifmgd->auth_data) |
4897 | ieee80211_destroy_auth_data(sdata, false); | |
1a1cb744 | 4898 | cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf, |
3bb02143 JB |
4899 | IEEE80211_DEAUTH_FRAME_LEN, |
4900 | false); | |
1a1cb744 JB |
4901 | } |
4902 | ||
be72afe0 JB |
4903 | /* This is a bit of a hack - we should find a better and more generic |
4904 | * solution to this. Normally when suspending, cfg80211 will in fact | |
4905 | * deauthenticate. However, it doesn't (and cannot) stop an ongoing | |
4906 | * auth (not so important) or assoc (this is the problem) process. | |
4907 | * | |
4908 | * As a consequence, it can happen that we are in the process of both | |
4909 | * associating and suspending, and receive an association response | |
4910 | * after cfg80211 has checked if it needs to disconnect, but before | |
4911 | * we actually set the flag to drop incoming frames. This will then | |
4912 | * cause the workqueue flush to process the association response in | |
4913 | * the suspend, resulting in a successful association just before it | |
4914 | * tries to remove the interface from the driver, which now though | |
4915 | * has a channel context assigned ... this results in issues. | |
4916 | * | |
4917 | * To work around this (for now) simply deauth here again if we're | |
4918 | * now connected. | |
4919 | */ | |
4920 | if (ifmgd->associated && !sdata->local->wowlan) { | |
4921 | u8 bssid[ETH_ALEN]; | |
4922 | struct cfg80211_deauth_request req = { | |
4923 | .reason_code = WLAN_REASON_DEAUTH_LEAVING, | |
4924 | .bssid = bssid, | |
4925 | }; | |
4926 | ||
c8fe4b0b | 4927 | memcpy(bssid, ifmgd->bssid, ETH_ALEN); |
be72afe0 JB |
4928 | ieee80211_mgd_deauth(sdata, &req); |
4929 | } | |
4930 | ||
1a1cb744 JB |
4931 | sdata_unlock(sdata); |
4932 | } | |
3fa5a0f5 | 4933 | #endif |
1a1cb744 | 4934 | |
b8360ab8 JB |
4935 | void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) |
4936 | { | |
4937 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
4938 | ||
8d61ffa5 | 4939 | sdata_lock(sdata); |
b8360ab8 | 4940 | if (!ifmgd->associated) { |
8d61ffa5 | 4941 | sdata_unlock(sdata); |
b8360ab8 JB |
4942 | return; |
4943 | } | |
4944 | ||
4945 | if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) { | |
4946 | sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME; | |
4947 | mlme_dbg(sdata, "driver requested disconnect after resume\n"); | |
4948 | ieee80211_sta_connection_lost(sdata, | |
b8360ab8 JB |
4949 | WLAN_REASON_UNSPECIFIED, |
4950 | true); | |
8d61ffa5 | 4951 | sdata_unlock(sdata); |
b8360ab8 JB |
4952 | return; |
4953 | } | |
7d352ccf YC |
4954 | |
4955 | if (sdata->flags & IEEE80211_SDATA_DISCONNECT_HW_RESTART) { | |
4956 | sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_HW_RESTART; | |
4957 | mlme_dbg(sdata, "driver requested disconnect after hardware restart\n"); | |
4958 | ieee80211_sta_connection_lost(sdata, | |
7d352ccf YC |
4959 | WLAN_REASON_UNSPECIFIED, |
4960 | true); | |
4961 | sdata_unlock(sdata); | |
4962 | return; | |
4963 | } | |
4964 | ||
8d61ffa5 | 4965 | sdata_unlock(sdata); |
b8360ab8 | 4966 | } |
b8360ab8 | 4967 | |
9c6bd790 JB |
4968 | /* interface setup */ |
4969 | void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) | |
f0706e82 | 4970 | { |
46900298 | 4971 | struct ieee80211_if_managed *ifmgd; |
988c0f72 | 4972 | |
46900298 | 4973 | ifmgd = &sdata->u.mgd; |
b291ba11 | 4974 | INIT_WORK(&ifmgd->monitor_work, ieee80211_sta_monitor_work); |
46900298 | 4975 | INIT_WORK(&ifmgd->chswitch_work, ieee80211_chswitch_work); |
1e4dcd01 JO |
4976 | INIT_WORK(&ifmgd->beacon_connection_loss_work, |
4977 | ieee80211_beacon_connection_loss_work); | |
882a7c69 JB |
4978 | INIT_WORK(&ifmgd->csa_connection_drop_work, |
4979 | ieee80211_csa_connection_drop_work); | |
687da132 | 4980 | INIT_WORK(&ifmgd->request_smps_work, ieee80211_request_smps_mgd_work); |
81dd2b88 AN |
4981 | INIT_DELAYED_WORK(&ifmgd->tdls_peer_del_work, |
4982 | ieee80211_tdls_peer_del_work); | |
34f11cd3 KC |
4983 | timer_setup(&ifmgd->timer, ieee80211_sta_timer, 0); |
4984 | timer_setup(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer, 0); | |
4985 | timer_setup(&ifmgd->conn_mon_timer, ieee80211_sta_conn_mon_timer, 0); | |
4986 | timer_setup(&ifmgd->chswitch_timer, ieee80211_chswitch_timer, 0); | |
02219b3a JB |
4987 | INIT_DELAYED_WORK(&ifmgd->tx_tspec_wk, |
4988 | ieee80211_sta_handle_tspec_ac_params_wk); | |
9c6bd790 | 4989 | |
ab1faead | 4990 | ifmgd->flags = 0; |
1478acb3 | 4991 | ifmgd->powersave = sdata->wdev.ps; |
219c3867 AB |
4992 | ifmgd->uapsd_queues = sdata->local->hw.uapsd_queues; |
4993 | ifmgd->uapsd_max_sp_len = sdata->local->hw.uapsd_max_sp_len; | |
67baf663 | 4994 | ifmgd->p2p_noa_index = -1; |
bbbdff9e | 4995 | |
0d8614b4 | 4996 | if (sdata->local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) |
0f78231b JB |
4997 | ifmgd->req_smps = IEEE80211_SMPS_AUTOMATIC; |
4998 | else | |
4999 | ifmgd->req_smps = IEEE80211_SMPS_OFF; | |
1277b4a9 LK |
5000 | |
5001 | /* Setup TDLS data */ | |
5002 | spin_lock_init(&ifmgd->teardown_lock); | |
5003 | ifmgd->teardown_skb = NULL; | |
5004 | ifmgd->orig_teardown_skb = NULL; | |
f0706e82 JB |
5005 | } |
5006 | ||
77fdaa12 JB |
5007 | /* scan finished notification */ |
5008 | void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) | |
60f8b39c | 5009 | { |
31ee67a1 | 5010 | struct ieee80211_sub_if_data *sdata; |
60f8b39c | 5011 | |
77fdaa12 JB |
5012 | /* Restart STA timers */ |
5013 | rcu_read_lock(); | |
370bd005 BG |
5014 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
5015 | if (ieee80211_sdata_running(sdata)) | |
5016 | ieee80211_restart_sta_timer(sdata); | |
5017 | } | |
77fdaa12 JB |
5018 | rcu_read_unlock(); |
5019 | } | |
60f8b39c | 5020 | |
f39b7d62 MG |
5021 | static u8 ieee80211_max_rx_chains(struct ieee80211_sub_if_data *sdata, |
5022 | struct cfg80211_bss *cbss) | |
f2d9d270 | 5023 | { |
f39b7d62 | 5024 | struct ieee80211_he_mcs_nss_supp *he_mcs_nss_supp; |
f2d9d270 | 5025 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
b3c1906e | 5026 | const struct element *ht_cap_elem, *vht_cap_elem; |
f39b7d62 | 5027 | const struct cfg80211_bss_ies *ies; |
f2d9d270 JB |
5028 | const struct ieee80211_ht_cap *ht_cap; |
5029 | const struct ieee80211_vht_cap *vht_cap; | |
f39b7d62 MG |
5030 | const struct ieee80211_he_cap_elem *he_cap; |
5031 | const struct element *he_cap_elem; | |
5032 | u16 mcs_80_map, mcs_160_map; | |
5033 | int i, mcs_nss_size; | |
5034 | bool support_160; | |
f2d9d270 JB |
5035 | u8 chains = 1; |
5036 | ||
5037 | if (ifmgd->flags & IEEE80211_STA_DISABLE_HT) | |
5038 | return chains; | |
5039 | ||
b3c1906e JB |
5040 | ht_cap_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_HT_CAPABILITY); |
5041 | if (ht_cap_elem && ht_cap_elem->datalen >= sizeof(*ht_cap)) { | |
5042 | ht_cap = (void *)ht_cap_elem->data; | |
f2d9d270 JB |
5043 | chains = ieee80211_mcs_to_chains(&ht_cap->mcs); |
5044 | /* | |
5045 | * TODO: use "Tx Maximum Number Spatial Streams Supported" and | |
5046 | * "Tx Unequal Modulation Supported" fields. | |
5047 | */ | |
5048 | } | |
5049 | ||
5050 | if (ifmgd->flags & IEEE80211_STA_DISABLE_VHT) | |
5051 | return chains; | |
5052 | ||
b3c1906e JB |
5053 | vht_cap_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_VHT_CAPABILITY); |
5054 | if (vht_cap_elem && vht_cap_elem->datalen >= sizeof(*vht_cap)) { | |
f2d9d270 JB |
5055 | u8 nss; |
5056 | u16 tx_mcs_map; | |
5057 | ||
b3c1906e | 5058 | vht_cap = (void *)vht_cap_elem->data; |
f2d9d270 JB |
5059 | tx_mcs_map = le16_to_cpu(vht_cap->supp_mcs.tx_mcs_map); |
5060 | for (nss = 8; nss > 0; nss--) { | |
5061 | if (((tx_mcs_map >> (2 * (nss - 1))) & 3) != | |
5062 | IEEE80211_VHT_MCS_NOT_SUPPORTED) | |
5063 | break; | |
5064 | } | |
5065 | /* TODO: use "Tx Highest Supported Long GI Data Rate" field? */ | |
5066 | chains = max(chains, nss); | |
5067 | } | |
5068 | ||
f39b7d62 MG |
5069 | if (ifmgd->flags & IEEE80211_STA_DISABLE_HE) |
5070 | return chains; | |
5071 | ||
5072 | ies = rcu_dereference(cbss->ies); | |
5073 | he_cap_elem = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, | |
5074 | ies->data, ies->len); | |
5075 | ||
5076 | if (!he_cap_elem || he_cap_elem->datalen < sizeof(*he_cap)) | |
5077 | return chains; | |
5078 | ||
5079 | /* skip one byte ext_tag_id */ | |
5080 | he_cap = (void *)(he_cap_elem->data + 1); | |
5081 | mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap); | |
5082 | ||
5083 | /* invalid HE IE */ | |
5084 | if (he_cap_elem->datalen < 1 + mcs_nss_size + sizeof(*he_cap)) | |
5085 | return chains; | |
5086 | ||
5087 | /* mcs_nss is right after he_cap info */ | |
5088 | he_mcs_nss_supp = (void *)(he_cap + 1); | |
5089 | ||
5090 | mcs_80_map = le16_to_cpu(he_mcs_nss_supp->tx_mcs_80); | |
5091 | ||
5092 | for (i = 7; i >= 0; i--) { | |
5093 | u8 mcs_80 = mcs_80_map >> (2 * i) & 3; | |
5094 | ||
5095 | if (mcs_80 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
5096 | chains = max_t(u8, chains, i + 1); | |
5097 | break; | |
5098 | } | |
5099 | } | |
5100 | ||
5101 | support_160 = he_cap->phy_cap_info[0] & | |
5102 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; | |
5103 | ||
5104 | if (!support_160) | |
5105 | return chains; | |
5106 | ||
5107 | mcs_160_map = le16_to_cpu(he_mcs_nss_supp->tx_mcs_160); | |
5108 | for (i = 7; i >= 0; i--) { | |
5109 | u8 mcs_160 = mcs_160_map >> (2 * i) & 3; | |
5110 | ||
5111 | if (mcs_160 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
5112 | chains = max_t(u8, chains, i + 1); | |
5113 | break; | |
5114 | } | |
5115 | } | |
5116 | ||
f2d9d270 JB |
5117 | return chains; |
5118 | } | |
5119 | ||
97634ef4 MG |
5120 | static bool |
5121 | ieee80211_verify_peer_he_mcs_support(struct ieee80211_sub_if_data *sdata, | |
5122 | const struct cfg80211_bss_ies *ies, | |
5123 | const struct ieee80211_he_operation *he_op) | |
5124 | { | |
5125 | const struct element *he_cap_elem; | |
5126 | const struct ieee80211_he_cap_elem *he_cap; | |
5127 | struct ieee80211_he_mcs_nss_supp *he_mcs_nss_supp; | |
5128 | u16 mcs_80_map_tx, mcs_80_map_rx; | |
5129 | u16 ap_min_req_set; | |
5130 | int mcs_nss_size; | |
5131 | int nss; | |
5132 | ||
5133 | he_cap_elem = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, | |
5134 | ies->data, ies->len); | |
5135 | ||
5136 | /* invalid HE IE */ | |
5137 | if (!he_cap_elem || he_cap_elem->datalen < 1 + sizeof(*he_cap)) { | |
5138 | sdata_info(sdata, | |
5139 | "Invalid HE elem, Disable HE\n"); | |
5140 | return false; | |
5141 | } | |
5142 | ||
5143 | /* skip one byte ext_tag_id */ | |
5144 | he_cap = (void *)(he_cap_elem->data + 1); | |
5145 | mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap); | |
5146 | ||
5147 | /* invalid HE IE */ | |
5148 | if (he_cap_elem->datalen < 1 + sizeof(*he_cap) + mcs_nss_size) { | |
5149 | sdata_info(sdata, | |
5150 | "Invalid HE elem with nss size, Disable HE\n"); | |
5151 | return false; | |
5152 | } | |
5153 | ||
5154 | /* mcs_nss is right after he_cap info */ | |
5155 | he_mcs_nss_supp = (void *)(he_cap + 1); | |
5156 | ||
5157 | mcs_80_map_tx = le16_to_cpu(he_mcs_nss_supp->tx_mcs_80); | |
5158 | mcs_80_map_rx = le16_to_cpu(he_mcs_nss_supp->rx_mcs_80); | |
5159 | ||
5160 | /* P802.11-REVme/D0.3 | |
5161 | * 27.1.1 Introduction to the HE PHY | |
5162 | * ... | |
5163 | * An HE STA shall support the following features: | |
5164 | * ... | |
5165 | * Single spatial stream HE-MCSs 0 to 7 (transmit and receive) in all | |
5166 | * supported channel widths for HE SU PPDUs | |
5167 | */ | |
5168 | if ((mcs_80_map_tx & 0x3) == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
5169 | (mcs_80_map_rx & 0x3) == IEEE80211_HE_MCS_NOT_SUPPORTED) { | |
5170 | sdata_info(sdata, | |
5171 | "Missing mandatory rates for 1 Nss, rx 0x%x, tx 0x%x, disable HE\n", | |
5172 | mcs_80_map_tx, mcs_80_map_rx); | |
5173 | return false; | |
5174 | } | |
5175 | ||
5176 | if (!he_op) | |
5177 | return true; | |
5178 | ||
5179 | ap_min_req_set = le16_to_cpu(he_op->he_mcs_nss_set); | |
5180 | ||
5181 | /* make sure the AP is consistent with itself | |
5182 | * | |
5183 | * P802.11-REVme/D0.3 | |
5184 | * 26.17.1 Basic HE BSS operation | |
5185 | * | |
5186 | * A STA that is operating in an HE BSS shall be able to receive and | |
5187 | * transmit at each of the <HE-MCS, NSS> tuple values indicated by the | |
5188 | * Basic HE-MCS And NSS Set field of the HE Operation parameter of the | |
5189 | * MLME-START.request primitive and shall be able to receive at each of | |
5190 | * the <HE-MCS, NSS> tuple values indicated by the Supported HE-MCS and | |
5191 | * NSS Set field in the HE Capabilities parameter of the MLMESTART.request | |
5192 | * primitive | |
5193 | */ | |
5194 | for (nss = 8; nss > 0; nss--) { | |
5195 | u8 ap_op_val = (ap_min_req_set >> (2 * (nss - 1))) & 3; | |
5196 | u8 ap_rx_val; | |
5197 | u8 ap_tx_val; | |
5198 | ||
5199 | if (ap_op_val == IEEE80211_HE_MCS_NOT_SUPPORTED) | |
5200 | continue; | |
5201 | ||
5202 | ap_rx_val = (mcs_80_map_rx >> (2 * (nss - 1))) & 3; | |
5203 | ap_tx_val = (mcs_80_map_tx >> (2 * (nss - 1))) & 3; | |
5204 | ||
5205 | if (ap_rx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
5206 | ap_tx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
5207 | ap_rx_val < ap_op_val || ap_tx_val < ap_op_val) { | |
5208 | sdata_info(sdata, | |
5209 | "Invalid rates for %d Nss, rx %d, tx %d oper %d, disable HE\n", | |
5210 | nss, ap_rx_val, ap_rx_val, ap_op_val); | |
5211 | return false; | |
5212 | } | |
5213 | } | |
5214 | ||
5215 | return true; | |
5216 | } | |
5217 | ||
41cbb0f5 | 5218 | static bool |
bac2fd3d JB |
5219 | ieee80211_verify_sta_he_mcs_support(struct ieee80211_sub_if_data *sdata, |
5220 | struct ieee80211_supported_band *sband, | |
41cbb0f5 LC |
5221 | const struct ieee80211_he_operation *he_op) |
5222 | { | |
5223 | const struct ieee80211_sta_he_cap *sta_he_cap = | |
bac2fd3d JB |
5224 | ieee80211_get_he_iftype_cap(sband, |
5225 | ieee80211_vif_type_p2p(&sdata->vif)); | |
47aa7861 | 5226 | u16 ap_min_req_set; |
41cbb0f5 LC |
5227 | int i; |
5228 | ||
5229 | if (!sta_he_cap || !he_op) | |
5230 | return false; | |
5231 | ||
47aa7861 GS |
5232 | ap_min_req_set = le16_to_cpu(he_op->he_mcs_nss_set); |
5233 | ||
41cbb0f5 LC |
5234 | /* Need to go over for 80MHz, 160MHz and for 80+80 */ |
5235 | for (i = 0; i < 3; i++) { | |
5236 | const struct ieee80211_he_mcs_nss_supp *sta_mcs_nss_supp = | |
5237 | &sta_he_cap->he_mcs_nss_supp; | |
5238 | u16 sta_mcs_map_rx = | |
5239 | le16_to_cpu(((__le16 *)sta_mcs_nss_supp)[2 * i]); | |
5240 | u16 sta_mcs_map_tx = | |
5241 | le16_to_cpu(((__le16 *)sta_mcs_nss_supp)[2 * i + 1]); | |
5242 | u8 nss; | |
5243 | bool verified = true; | |
5244 | ||
5245 | /* | |
5246 | * For each band there is a maximum of 8 spatial streams | |
5247 | * possible. Each of the sta_mcs_map_* is a 16-bit struct built | |
5248 | * of 2 bits per NSS (1-8), with the values defined in enum | |
5249 | * ieee80211_he_mcs_support. Need to make sure STA TX and RX | |
5250 | * capabilities aren't less than the AP's minimum requirements | |
5251 | * for this HE BSS per SS. | |
5252 | * It is enough to find one such band that meets the reqs. | |
5253 | */ | |
5254 | for (nss = 8; nss > 0; nss--) { | |
5255 | u8 sta_rx_val = (sta_mcs_map_rx >> (2 * (nss - 1))) & 3; | |
5256 | u8 sta_tx_val = (sta_mcs_map_tx >> (2 * (nss - 1))) & 3; | |
5257 | u8 ap_val = (ap_min_req_set >> (2 * (nss - 1))) & 3; | |
5258 | ||
5259 | if (ap_val == IEEE80211_HE_MCS_NOT_SUPPORTED) | |
5260 | continue; | |
5261 | ||
5262 | /* | |
5263 | * Make sure the HE AP doesn't require MCSs that aren't | |
6ad1dce5 MG |
5264 | * supported by the client as required by spec |
5265 | * | |
5266 | * P802.11-REVme/D0.3 | |
5267 | * 26.17.1 Basic HE BSS operation | |
5268 | * | |
5269 | * An HE STA shall not attempt to join * (MLME-JOIN.request primitive) | |
5270 | * a BSS, unless it supports (i.e., is able to both transmit and | |
5271 | * receive using) all of the <HE-MCS, NSS> tuples in the basic | |
5272 | * HE-MCS and NSS set. | |
41cbb0f5 LC |
5273 | */ |
5274 | if (sta_rx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
5275 | sta_tx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
5276 | (ap_val > sta_rx_val) || (ap_val > sta_tx_val)) { | |
5277 | verified = false; | |
5278 | break; | |
5279 | } | |
5280 | } | |
5281 | ||
5282 | if (verified) | |
5283 | return true; | |
5284 | } | |
5285 | ||
5286 | /* If here, STA doesn't meet AP's HE min requirements */ | |
5287 | return false; | |
5288 | } | |
5289 | ||
b17166a7 JB |
5290 | static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, |
5291 | struct cfg80211_bss *cbss) | |
a1cf775d JB |
5292 | { |
5293 | struct ieee80211_local *local = sdata->local; | |
5294 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
53b954ee | 5295 | const struct ieee80211_ht_cap *ht_cap = NULL; |
24398e39 | 5296 | const struct ieee80211_ht_operation *ht_oper = NULL; |
f2d9d270 | 5297 | const struct ieee80211_vht_operation *vht_oper = NULL; |
41cbb0f5 | 5298 | const struct ieee80211_he_operation *he_oper = NULL; |
5dca295d | 5299 | const struct ieee80211_eht_operation *eht_oper = NULL; |
1d00ce80 | 5300 | const struct ieee80211_s1g_oper_ie *s1g_oper = NULL; |
24398e39 | 5301 | struct ieee80211_supported_band *sband; |
4bf88530 | 5302 | struct cfg80211_chan_def chandef; |
57fa5e85 | 5303 | bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; |
780a8c9e | 5304 | bool is_5ghz = cbss->channel->band == NL80211_BAND_5GHZ; |
2a333a0d | 5305 | struct ieee80211_bss *bss = (void *)cbss->priv; |
37123c3b WG |
5306 | struct ieee802_11_elems *elems; |
5307 | const struct cfg80211_bss_ies *ies; | |
f2d9d270 | 5308 | int ret; |
52a45f38 AN |
5309 | u32 i; |
5310 | bool have_80mhz; | |
a1cf775d | 5311 | |
37123c3b WG |
5312 | rcu_read_lock(); |
5313 | ||
5314 | ies = rcu_dereference(cbss->ies); | |
5315 | elems = ieee802_11_parse_elems(ies->data, ies->len, false, | |
5316 | NULL, NULL); | |
5317 | if (!elems) { | |
5318 | rcu_read_unlock(); | |
5319 | return -ENOMEM; | |
5320 | } | |
5321 | ||
24398e39 JB |
5322 | sband = local->hw.wiphy->bands[cbss->channel->band]; |
5323 | ||
f2d9d270 JB |
5324 | ifmgd->flags &= ~(IEEE80211_STA_DISABLE_40MHZ | |
5325 | IEEE80211_STA_DISABLE_80P80MHZ | | |
5326 | IEEE80211_STA_DISABLE_160MHZ); | |
5327 | ||
75e296e9 | 5328 | /* disable HT/VHT/HE if we don't support them */ |
57fa5e85 | 5329 | if (!sband->ht_cap.ht_supported && !is_6ghz) { |
5dca295d | 5330 | mlme_dbg(sdata, "HT not supported, disabling HT/VHT/HE/EHT\n"); |
75e296e9 JB |
5331 | ifmgd->flags |= IEEE80211_STA_DISABLE_HT; |
5332 | ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; | |
5333 | ifmgd->flags |= IEEE80211_STA_DISABLE_HE; | |
5dca295d | 5334 | ifmgd->flags |= IEEE80211_STA_DISABLE_EHT; |
75e296e9 JB |
5335 | } |
5336 | ||
780a8c9e | 5337 | if (!sband->vht_cap.vht_supported && is_5ghz) { |
5dca295d | 5338 | mlme_dbg(sdata, "VHT not supported, disabling VHT/HE/EHT\n"); |
75e296e9 | 5339 | ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; |
57fa5e85 | 5340 | ifmgd->flags |= IEEE80211_STA_DISABLE_HE; |
5dca295d | 5341 | ifmgd->flags |= IEEE80211_STA_DISABLE_EHT; |
57fa5e85 | 5342 | } |
75e296e9 | 5343 | |
bac2fd3d | 5344 | if (!ieee80211_get_he_iftype_cap(sband, |
636ccdae | 5345 | ieee80211_vif_type_p2p(&sdata->vif))) { |
5dca295d | 5346 | mlme_dbg(sdata, "HE not supported, disabling HE and EHT\n"); |
75e296e9 | 5347 | ifmgd->flags |= IEEE80211_STA_DISABLE_HE; |
5dca295d IP |
5348 | ifmgd->flags |= IEEE80211_STA_DISABLE_EHT; |
5349 | } | |
5350 | ||
5351 | if (!ieee80211_get_eht_iftype_cap(sband, | |
5352 | ieee80211_vif_type_p2p(&sdata->vif))) { | |
5353 | mlme_dbg(sdata, "EHT not supported, disabling EHT\n"); | |
5354 | ifmgd->flags |= IEEE80211_STA_DISABLE_EHT; | |
636ccdae | 5355 | } |
75e296e9 | 5356 | |
57fa5e85 | 5357 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT) && !is_6ghz) { |
37123c3b WG |
5358 | ht_oper = elems->ht_operation; |
5359 | ht_cap = elems->ht_cap_elem; | |
53b954ee EP |
5360 | |
5361 | if (!ht_cap) { | |
08e6effa JB |
5362 | ifmgd->flags |= IEEE80211_STA_DISABLE_HT; |
5363 | ht_oper = NULL; | |
5364 | } | |
24398e39 JB |
5365 | } |
5366 | ||
57fa5e85 | 5367 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) && !is_6ghz) { |
37123c3b | 5368 | vht_oper = elems->vht_operation; |
f2d9d270 JB |
5369 | if (vht_oper && !ht_oper) { |
5370 | vht_oper = NULL; | |
bdcbd8e0 | 5371 | sdata_info(sdata, |
75e296e9 | 5372 | "AP advertised VHT without HT, disabling HT/VHT/HE\n"); |
cb145022 JB |
5373 | ifmgd->flags |= IEEE80211_STA_DISABLE_HT; |
5374 | ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; | |
75e296e9 | 5375 | ifmgd->flags |= IEEE80211_STA_DISABLE_HE; |
5dca295d | 5376 | ifmgd->flags |= IEEE80211_STA_DISABLE_EHT; |
24398e39 | 5377 | } |
08e6effa | 5378 | |
37123c3b | 5379 | if (!elems->vht_cap_elem) { |
636ccdae JB |
5380 | sdata_info(sdata, |
5381 | "bad VHT capabilities, disabling VHT\n"); | |
08e6effa JB |
5382 | ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; |
5383 | vht_oper = NULL; | |
5384 | } | |
24398e39 JB |
5385 | } |
5386 | ||
002245ec | 5387 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HE)) { |
37123c3b | 5388 | he_oper = elems->he_operation; |
41cbb0f5 | 5389 | |
63214f02 WG |
5390 | if (is_6ghz) { |
5391 | struct ieee80211_bss_conf *bss_conf; | |
5392 | u8 i, j = 0; | |
5393 | ||
5394 | bss_conf = &sdata->vif.bss_conf; | |
5395 | ||
5396 | if (elems->pwr_constr_elem) | |
5397 | bss_conf->pwr_reduction = *elems->pwr_constr_elem; | |
5398 | ||
5399 | BUILD_BUG_ON(ARRAY_SIZE(bss_conf->tx_pwr_env) != | |
5400 | ARRAY_SIZE(elems->tx_pwr_env)); | |
5401 | ||
5402 | for (i = 0; i < elems->tx_pwr_env_num; i++) { | |
5403 | if (elems->tx_pwr_env_len[i] > | |
5404 | sizeof(bss_conf->tx_pwr_env[j])) | |
5405 | continue; | |
5406 | ||
5407 | bss_conf->tx_pwr_env_num++; | |
5408 | memcpy(&bss_conf->tx_pwr_env[j], elems->tx_pwr_env[i], | |
5409 | elems->tx_pwr_env_len[i]); | |
5410 | j++; | |
5411 | } | |
5412 | } | |
5413 | ||
97634ef4 MG |
5414 | if (!ieee80211_verify_peer_he_mcs_support(sdata, ies, he_oper) || |
5415 | !ieee80211_verify_sta_he_mcs_support(sdata, sband, he_oper)) | |
5dca295d IP |
5416 | ifmgd->flags |= IEEE80211_STA_DISABLE_HE | |
5417 | IEEE80211_STA_DISABLE_EHT; | |
5418 | } | |
5419 | ||
5420 | /* | |
5421 | * EHT requires HE to be supported as well. Specifically for 6 GHz | |
5422 | * channels, the operation channel information can only be deduced from | |
5423 | * both the 6 GHz operation information (from the HE operation IE) and | |
5424 | * EHT operation. | |
5425 | */ | |
5426 | if (!(ifmgd->flags & (IEEE80211_STA_DISABLE_HE | | |
5427 | IEEE80211_STA_DISABLE_EHT)) && he_oper) { | |
5428 | const struct cfg80211_bss_ies *ies; | |
5429 | const u8 *eht_oper_ie; | |
5430 | ||
5431 | ies = rcu_dereference(cbss->ies); | |
5432 | eht_oper_ie = cfg80211_find_ext_ie(WLAN_EID_EXT_EHT_OPERATION, | |
5433 | ies->data, ies->len); | |
5434 | if (eht_oper_ie && eht_oper_ie[1] >= | |
5435 | 1 + sizeof(struct ieee80211_eht_operation)) | |
5436 | eht_oper = (void *)(eht_oper_ie + 3); | |
5437 | else | |
5438 | eht_oper = NULL; | |
41cbb0f5 LC |
5439 | } |
5440 | ||
52a45f38 AN |
5441 | /* Allow VHT if at least one channel on the sband supports 80 MHz */ |
5442 | have_80mhz = false; | |
5443 | for (i = 0; i < sband->n_channels; i++) { | |
5444 | if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | | |
5445 | IEEE80211_CHAN_NO_80MHZ)) | |
5446 | continue; | |
5447 | ||
5448 | have_80mhz = true; | |
5449 | break; | |
5450 | } | |
5451 | ||
636ccdae JB |
5452 | if (!have_80mhz) { |
5453 | sdata_info(sdata, "80 MHz not supported, disabling VHT\n"); | |
52a45f38 | 5454 | ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; |
636ccdae | 5455 | } |
52a45f38 | 5456 | |
1d00ce80 | 5457 | if (sband->band == NL80211_BAND_S1GHZ) { |
37123c3b WG |
5458 | s1g_oper = elems->s1g_oper; |
5459 | if (!s1g_oper) | |
1d00ce80 TP |
5460 | sdata_info(sdata, |
5461 | "AP missing S1G operation element?\n"); | |
5462 | } | |
5463 | ||
f2d9d270 JB |
5464 | ifmgd->flags |= ieee80211_determine_chantype(sdata, sband, |
5465 | cbss->channel, | |
2a333a0d | 5466 | bss->vht_cap_info, |
5dca295d IP |
5467 | ht_oper, vht_oper, |
5468 | he_oper, eht_oper, | |
1d00ce80 | 5469 | s1g_oper, |
5cdaed1e | 5470 | &chandef, false); |
04ecd257 | 5471 | |
f39b7d62 | 5472 | sdata->needed_rx_chains = min(ieee80211_max_rx_chains(sdata, cbss), |
f2d9d270 | 5473 | local->rx_chains); |
24398e39 | 5474 | |
9caf0364 | 5475 | rcu_read_unlock(); |
37123c3b WG |
5476 | /* the element data was RCU protected so no longer valid anyway */ |
5477 | kfree(elems); | |
5478 | elems = NULL; | |
9caf0364 | 5479 | |
57fa5e85 JB |
5480 | if (ifmgd->flags & IEEE80211_STA_DISABLE_HE && is_6ghz) { |
5481 | sdata_info(sdata, "Rejecting non-HE 6/7 GHz connection"); | |
5482 | return -EINVAL; | |
5483 | } | |
5484 | ||
04ecd257 JB |
5485 | /* will change later if needed */ |
5486 | sdata->smps_mode = IEEE80211_SMPS_OFF; | |
5487 | ||
34a3740d | 5488 | mutex_lock(&local->mtx); |
f2d9d270 JB |
5489 | /* |
5490 | * If this fails (possibly due to channel context sharing | |
5491 | * on incompatible channels, e.g. 80+80 and 160 sharing the | |
5492 | * same control channel) try to use a smaller bandwidth. | |
5493 | */ | |
5494 | ret = ieee80211_vif_use_channel(sdata, &chandef, | |
5495 | IEEE80211_CHANCTX_SHARED); | |
0418a445 SW |
5496 | |
5497 | /* don't downgrade for 5 and 10 MHz channels, though. */ | |
5498 | if (chandef.width == NL80211_CHAN_WIDTH_5 || | |
5499 | chandef.width == NL80211_CHAN_WIDTH_10) | |
34a3740d | 5500 | goto out; |
0418a445 | 5501 | |
d601cd8d | 5502 | while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) { |
e6b7cde4 | 5503 | ifmgd->flags |= ieee80211_chandef_downgrade(&chandef); |
d601cd8d JB |
5504 | ret = ieee80211_vif_use_channel(sdata, &chandef, |
5505 | IEEE80211_CHANCTX_SHARED); | |
5506 | } | |
34a3740d JB |
5507 | out: |
5508 | mutex_unlock(&local->mtx); | |
f2d9d270 | 5509 | return ret; |
b17166a7 JB |
5510 | } |
5511 | ||
78ac51f8 SS |
5512 | static bool ieee80211_get_dtim(const struct cfg80211_bss_ies *ies, |
5513 | u8 *dtim_count, u8 *dtim_period) | |
5514 | { | |
5515 | const u8 *tim_ie = cfg80211_find_ie(WLAN_EID_TIM, ies->data, ies->len); | |
5516 | const u8 *idx_ie = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, ies->data, | |
5517 | ies->len); | |
5518 | const struct ieee80211_tim_ie *tim = NULL; | |
5519 | const struct ieee80211_bssid_index *idx; | |
5520 | bool valid = tim_ie && tim_ie[1] >= 2; | |
5521 | ||
5522 | if (valid) | |
5523 | tim = (void *)(tim_ie + 2); | |
5524 | ||
5525 | if (dtim_count) | |
5526 | *dtim_count = valid ? tim->dtim_count : 0; | |
5527 | ||
5528 | if (dtim_period) | |
5529 | *dtim_period = valid ? tim->dtim_period : 0; | |
5530 | ||
5531 | /* Check if value is overridden by non-transmitted profile */ | |
5532 | if (!idx_ie || idx_ie[1] < 3) | |
5533 | return valid; | |
5534 | ||
5535 | idx = (void *)(idx_ie + 2); | |
5536 | ||
5537 | if (dtim_count) | |
5538 | *dtim_count = idx->dtim_count; | |
5539 | ||
5540 | if (dtim_period) | |
5541 | *dtim_period = idx->dtim_period; | |
5542 | ||
5543 | return true; | |
5544 | } | |
5545 | ||
b17166a7 | 5546 | static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, |
c1041f10 CRI |
5547 | struct cfg80211_bss *cbss, bool assoc, |
5548 | bool override) | |
b17166a7 JB |
5549 | { |
5550 | struct ieee80211_local *local = sdata->local; | |
5551 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
5552 | struct ieee80211_bss *bss = (void *)cbss->priv; | |
5553 | struct sta_info *new_sta = NULL; | |
179b8fc7 | 5554 | struct ieee80211_supported_band *sband; |
c1041f10 | 5555 | bool have_sta = false; |
b17166a7 JB |
5556 | int err; |
5557 | ||
179b8fc7 CRI |
5558 | sband = local->hw.wiphy->bands[cbss->channel->band]; |
5559 | ||
b17166a7 JB |
5560 | if (WARN_ON(!ifmgd->auth_data && !ifmgd->assoc_data)) |
5561 | return -EINVAL; | |
5562 | ||
f8860ce8 LC |
5563 | /* If a reconfig is happening, bail out */ |
5564 | if (local->in_reconfig) | |
5565 | return -EBUSY; | |
5566 | ||
b17166a7 JB |
5567 | if (assoc) { |
5568 | rcu_read_lock(); | |
5569 | have_sta = sta_info_get(sdata, cbss->bssid); | |
5570 | rcu_read_unlock(); | |
5571 | } | |
5572 | ||
5573 | if (!have_sta) { | |
5574 | new_sta = sta_info_alloc(sdata, cbss->bssid, GFP_KERNEL); | |
5575 | if (!new_sta) | |
5576 | return -ENOMEM; | |
5577 | } | |
179b8fc7 | 5578 | |
c87905be JB |
5579 | /* |
5580 | * Set up the information for the new channel before setting the | |
5581 | * new channel. We can't - completely race-free - change the basic | |
5582 | * rates bitmap and the channel (sband) that it refers to, but if | |
5583 | * we set it up before we at least avoid calling into the driver's | |
5584 | * bss_info_changed() method with invalid information (since we do | |
5585 | * call that from changing the channel - only for IDLE and perhaps | |
5586 | * some others, but ...). | |
5587 | * | |
5588 | * So to avoid that, just set up all the new information before the | |
5589 | * channel, but tell the driver to apply it only afterwards, since | |
5590 | * it might need the new channel for that. | |
5591 | */ | |
13e0c8e3 | 5592 | if (new_sta) { |
5d6a1b06 | 5593 | u32 rates = 0, basic_rates = 0; |
68a18ad7 | 5594 | bool have_higher_than_11mbit = false; |
5d6a1b06 | 5595 | int min_rate = INT_MAX, min_rate_index = -1; |
8cef2c9d | 5596 | const struct cfg80211_bss_ies *ies; |
179b8fc7 | 5597 | int shift = ieee80211_vif_get_shift(&sdata->vif); |
5d6a1b06 | 5598 | |
1d00ce80 | 5599 | /* TODO: S1G Basic Rate Set is expressed elsewhere */ |
12bf8fad TP |
5600 | if (cbss->channel->band == NL80211_BAND_S1GHZ) { |
5601 | ieee80211_s1g_sta_rate_init(new_sta); | |
1d00ce80 | 5602 | goto skip_rates; |
12bf8fad | 5603 | } |
1d00ce80 | 5604 | |
5d6a1b06 JB |
5605 | ieee80211_get_rates(sband, bss->supp_rates, |
5606 | bss->supp_rates_len, | |
5607 | &rates, &basic_rates, | |
5608 | &have_higher_than_11mbit, | |
2103dec1 | 5609 | &min_rate, &min_rate_index, |
44f6d42c | 5610 | shift); |
5d6a1b06 JB |
5611 | |
5612 | /* | |
5613 | * This used to be a workaround for basic rates missing | |
5614 | * in the association response frame. Now that we no | |
5615 | * longer use the basic rates from there, it probably | |
5616 | * doesn't happen any more, but keep the workaround so | |
5617 | * in case some *other* APs are buggy in different ways | |
5618 | * we can connect -- with a warning. | |
302ff8b7 IP |
5619 | * Allow this workaround only in case the AP provided at least |
5620 | * one rate. | |
5d6a1b06 | 5621 | */ |
302ff8b7 IP |
5622 | if (min_rate_index < 0) { |
5623 | sdata_info(sdata, | |
5624 | "No legacy rates in association response\n"); | |
5625 | ||
5626 | sta_info_free(local, new_sta); | |
5627 | return -EINVAL; | |
5628 | } else if (!basic_rates) { | |
bdcbd8e0 JB |
5629 | sdata_info(sdata, |
5630 | "No basic rates, using min rate instead\n"); | |
5d6a1b06 JB |
5631 | basic_rates = BIT(min_rate_index); |
5632 | } | |
5633 | ||
bd718fc1 | 5634 | if (rates) |
046d2e7c | 5635 | new_sta->sta.deflink.supp_rates[cbss->channel->band] = rates; |
bd718fc1 JB |
5636 | else |
5637 | sdata_info(sdata, | |
5638 | "No rates found, keeping mandatory only\n"); | |
5639 | ||
5d6a1b06 JB |
5640 | sdata->vif.bss_conf.basic_rates = basic_rates; |
5641 | ||
5642 | /* cf. IEEE 802.11 9.2.12 */ | |
57fbcce3 | 5643 | if (cbss->channel->band == NL80211_BAND_2GHZ && |
5d6a1b06 JB |
5644 | have_higher_than_11mbit) |
5645 | sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE; | |
5646 | else | |
5647 | sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; | |
5648 | ||
1d00ce80 | 5649 | skip_rates: |
5d6a1b06 JB |
5650 | memcpy(ifmgd->bssid, cbss->bssid, ETH_ALEN); |
5651 | ||
8c358bcd JB |
5652 | /* set timing information */ |
5653 | sdata->vif.bss_conf.beacon_int = cbss->beacon_interval; | |
8cef2c9d | 5654 | rcu_read_lock(); |
ef429dad JB |
5655 | ies = rcu_dereference(cbss->beacon_ies); |
5656 | if (ies) { | |
ef429dad JB |
5657 | sdata->vif.bss_conf.sync_tsf = ies->tsf; |
5658 | sdata->vif.bss_conf.sync_device_ts = | |
5659 | bss->device_ts_beacon; | |
78ac51f8 SS |
5660 | |
5661 | ieee80211_get_dtim(ies, | |
5662 | &sdata->vif.bss_conf.sync_dtim_count, | |
5663 | NULL); | |
30686bf7 JB |
5664 | } else if (!ieee80211_hw_check(&sdata->local->hw, |
5665 | TIMING_BEACON_ONLY)) { | |
ef429dad JB |
5666 | ies = rcu_dereference(cbss->proberesp_ies); |
5667 | /* must be non-NULL since beacon IEs were NULL */ | |
5668 | sdata->vif.bss_conf.sync_tsf = ies->tsf; | |
5669 | sdata->vif.bss_conf.sync_device_ts = | |
5670 | bss->device_ts_presp; | |
5671 | sdata->vif.bss_conf.sync_dtim_count = 0; | |
5672 | } else { | |
5673 | sdata->vif.bss_conf.sync_tsf = 0; | |
5674 | sdata->vif.bss_conf.sync_device_ts = 0; | |
5675 | sdata->vif.bss_conf.sync_dtim_count = 0; | |
5676 | } | |
8cef2c9d | 5677 | rcu_read_unlock(); |
c87905be | 5678 | } |
8c358bcd | 5679 | |
c87905be JB |
5680 | if (new_sta || override) { |
5681 | err = ieee80211_prep_channel(sdata, cbss); | |
5682 | if (err) { | |
5683 | if (new_sta) | |
5684 | sta_info_free(local, new_sta); | |
5685 | return -EINVAL; | |
5686 | } | |
5687 | } | |
5688 | ||
5689 | if (new_sta) { | |
5690 | /* | |
5691 | * tell driver about BSSID, basic rates and timing | |
5692 | * this was set up above, before setting the channel | |
5693 | */ | |
5d6a1b06 | 5694 | ieee80211_bss_info_change_notify(sdata, |
8c358bcd JB |
5695 | BSS_CHANGED_BSSID | BSS_CHANGED_BASIC_RATES | |
5696 | BSS_CHANGED_BEACON_INT); | |
a1cf775d JB |
5697 | |
5698 | if (assoc) | |
13e0c8e3 | 5699 | sta_info_pre_move_state(new_sta, IEEE80211_STA_AUTH); |
a1cf775d | 5700 | |
13e0c8e3 JB |
5701 | err = sta_info_insert(new_sta); |
5702 | new_sta = NULL; | |
a1cf775d | 5703 | if (err) { |
bdcbd8e0 JB |
5704 | sdata_info(sdata, |
5705 | "failed to insert STA entry for the AP (error %d)\n", | |
5706 | err); | |
a1cf775d JB |
5707 | return err; |
5708 | } | |
5709 | } else | |
b203ca39 | 5710 | WARN_ON_ONCE(!ether_addr_equal(ifmgd->bssid, cbss->bssid)); |
a1cf775d | 5711 | |
7d830a19 DS |
5712 | /* Cancel scan to ensure that nothing interferes with connection */ |
5713 | if (local->scanning) | |
5714 | ieee80211_scan_cancel(local); | |
5715 | ||
a1cf775d JB |
5716 | return 0; |
5717 | } | |
5718 | ||
77fdaa12 JB |
5719 | /* config hooks */ |
5720 | int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, | |
5721 | struct cfg80211_auth_request *req) | |
9c6bd790 | 5722 | { |
66e67e41 JB |
5723 | struct ieee80211_local *local = sdata->local; |
5724 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
5725 | struct ieee80211_mgd_auth_data *auth_data; | |
77fdaa12 | 5726 | u16 auth_alg; |
66e67e41 | 5727 | int err; |
efb543e6 | 5728 | bool cont_auth; |
66e67e41 JB |
5729 | |
5730 | /* prepare auth data structure */ | |
9c6bd790 | 5731 | |
77fdaa12 JB |
5732 | switch (req->auth_type) { |
5733 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
5734 | auth_alg = WLAN_AUTH_OPEN; | |
5735 | break; | |
5736 | case NL80211_AUTHTYPE_SHARED_KEY: | |
5fdb3735 | 5737 | if (fips_enabled) |
9dca9c49 | 5738 | return -EOPNOTSUPP; |
77fdaa12 JB |
5739 | auth_alg = WLAN_AUTH_SHARED_KEY; |
5740 | break; | |
5741 | case NL80211_AUTHTYPE_FT: | |
5742 | auth_alg = WLAN_AUTH_FT; | |
5743 | break; | |
5744 | case NL80211_AUTHTYPE_NETWORK_EAP: | |
5745 | auth_alg = WLAN_AUTH_LEAP; | |
5746 | break; | |
6b8ece3a JM |
5747 | case NL80211_AUTHTYPE_SAE: |
5748 | auth_alg = WLAN_AUTH_SAE; | |
5749 | break; | |
dbc0c2cb JM |
5750 | case NL80211_AUTHTYPE_FILS_SK: |
5751 | auth_alg = WLAN_AUTH_FILS_SK; | |
5752 | break; | |
5753 | case NL80211_AUTHTYPE_FILS_SK_PFS: | |
5754 | auth_alg = WLAN_AUTH_FILS_SK_PFS; | |
5755 | break; | |
5756 | case NL80211_AUTHTYPE_FILS_PK: | |
5757 | auth_alg = WLAN_AUTH_FILS_PK; | |
5758 | break; | |
77fdaa12 JB |
5759 | default: |
5760 | return -EOPNOTSUPP; | |
60f8b39c | 5761 | } |
77fdaa12 | 5762 | |
efb543e6 | 5763 | if (ifmgd->assoc_data) |
8d7432a2 JM |
5764 | return -EBUSY; |
5765 | ||
11b6b5a4 | 5766 | auth_data = kzalloc(sizeof(*auth_data) + req->auth_data_len + |
6b8ece3a | 5767 | req->ie_len, GFP_KERNEL); |
66e67e41 | 5768 | if (!auth_data) |
9c6bd790 | 5769 | return -ENOMEM; |
77fdaa12 | 5770 | |
66e67e41 | 5771 | auth_data->bss = req->bss; |
77fdaa12 | 5772 | |
11b6b5a4 | 5773 | if (req->auth_data_len >= 4) { |
6ec63612 JM |
5774 | if (req->auth_type == NL80211_AUTHTYPE_SAE) { |
5775 | __le16 *pos = (__le16 *) req->auth_data; | |
5776 | ||
5777 | auth_data->sae_trans = le16_to_cpu(pos[0]); | |
5778 | auth_data->sae_status = le16_to_cpu(pos[1]); | |
5779 | } | |
11b6b5a4 JM |
5780 | memcpy(auth_data->data, req->auth_data + 4, |
5781 | req->auth_data_len - 4); | |
5782 | auth_data->data_len += req->auth_data_len - 4; | |
6b8ece3a JM |
5783 | } |
5784 | ||
efb543e6 JM |
5785 | /* Check if continuing authentication or trying to authenticate with the |
5786 | * same BSS that we were in the process of authenticating with and avoid | |
5787 | * removal and re-addition of the STA entry in | |
5788 | * ieee80211_prep_connection(). | |
5789 | */ | |
5790 | cont_auth = ifmgd->auth_data && req->bss == ifmgd->auth_data->bss; | |
5791 | ||
77fdaa12 | 5792 | if (req->ie && req->ie_len) { |
6b8ece3a JM |
5793 | memcpy(&auth_data->data[auth_data->data_len], |
5794 | req->ie, req->ie_len); | |
5795 | auth_data->data_len += req->ie_len; | |
9c6bd790 | 5796 | } |
77fdaa12 | 5797 | |
fffd0934 | 5798 | if (req->key && req->key_len) { |
66e67e41 JB |
5799 | auth_data->key_len = req->key_len; |
5800 | auth_data->key_idx = req->key_idx; | |
5801 | memcpy(auth_data->key, req->key, req->key_len); | |
fffd0934 JB |
5802 | } |
5803 | ||
66e67e41 | 5804 | auth_data->algorithm = auth_alg; |
60f8b39c | 5805 | |
66e67e41 | 5806 | /* try to authenticate/probe */ |
2a33bee2 | 5807 | |
efb543e6 JM |
5808 | if (ifmgd->auth_data) { |
5809 | if (cont_auth && req->auth_type == NL80211_AUTHTYPE_SAE) { | |
5810 | auth_data->peer_confirmed = | |
5811 | ifmgd->auth_data->peer_confirmed; | |
5812 | } | |
5813 | ieee80211_destroy_auth_data(sdata, cont_auth); | |
5814 | } | |
2a33bee2 | 5815 | |
66e67e41 JB |
5816 | /* prep auth_data so we don't go into idle on disassoc */ |
5817 | ifmgd->auth_data = auth_data; | |
af6b6374 | 5818 | |
efb543e6 JM |
5819 | /* If this is continuation of an ongoing SAE authentication exchange |
5820 | * (i.e., request to send SAE Confirm) and the peer has already | |
5821 | * confirmed, mark authentication completed since we are about to send | |
5822 | * out SAE Confirm. | |
5823 | */ | |
5824 | if (cont_auth && req->auth_type == NL80211_AUTHTYPE_SAE && | |
5825 | auth_data->peer_confirmed && auth_data->sae_trans == 2) | |
5826 | ieee80211_mark_sta_auth(sdata, req->bss->bssid); | |
5827 | ||
7b119dc0 JB |
5828 | if (ifmgd->associated) { |
5829 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; | |
5830 | ||
89f774e6 JB |
5831 | sdata_info(sdata, |
5832 | "disconnect from AP %pM for new auth to %pM\n", | |
c8fe4b0b | 5833 | ifmgd->bssid, req->bss->bssid); |
7b119dc0 JB |
5834 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
5835 | WLAN_REASON_UNSPECIFIED, | |
5836 | false, frame_buf); | |
5837 | ||
a90faa9d EG |
5838 | ieee80211_report_disconnect(sdata, frame_buf, |
5839 | sizeof(frame_buf), true, | |
3f8a39ff JB |
5840 | WLAN_REASON_UNSPECIFIED, |
5841 | false); | |
7b119dc0 | 5842 | } |
af6b6374 | 5843 | |
bdcbd8e0 | 5844 | sdata_info(sdata, "authenticate with %pM\n", req->bss->bssid); |
e5b900d2 | 5845 | |
efb543e6 | 5846 | err = ieee80211_prep_connection(sdata, req->bss, cont_auth, false); |
a1cf775d | 5847 | if (err) |
66e67e41 | 5848 | goto err_clear; |
af6b6374 | 5849 | |
46cad4b7 | 5850 | err = ieee80211_auth(sdata); |
66e67e41 | 5851 | if (err) { |
66e67e41 JB |
5852 | sta_info_destroy_addr(sdata, req->bss->bssid); |
5853 | goto err_clear; | |
5854 | } | |
5855 | ||
5856 | /* hold our own reference */ | |
5b112d3d | 5857 | cfg80211_ref_bss(local->hw.wiphy, auth_data->bss); |
8d61ffa5 | 5858 | return 0; |
66e67e41 JB |
5859 | |
5860 | err_clear: | |
c84a67a2 | 5861 | eth_zero_addr(ifmgd->bssid); |
3d2abdfd | 5862 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID); |
66e67e41 | 5863 | ifmgd->auth_data = NULL; |
d01f858c MK |
5864 | mutex_lock(&sdata->local->mtx); |
5865 | ieee80211_vif_release_channel(sdata); | |
5866 | mutex_unlock(&sdata->local->mtx); | |
66e67e41 | 5867 | kfree(auth_data); |
66e67e41 | 5868 | return err; |
af6b6374 JB |
5869 | } |
5870 | ||
77fdaa12 JB |
5871 | int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, |
5872 | struct cfg80211_assoc_request *req) | |
f0706e82 | 5873 | { |
57fa5e85 | 5874 | bool is_6ghz = req->bss->channel->band == NL80211_BAND_6GHZ; |
c2f46814 | 5875 | bool is_5ghz = req->bss->channel->band == NL80211_BAND_5GHZ; |
66e67e41 | 5876 | struct ieee80211_local *local = sdata->local; |
77fdaa12 | 5877 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
0c1ad2ca | 5878 | struct ieee80211_bss *bss = (void *)req->bss->priv; |
66e67e41 | 5879 | struct ieee80211_mgd_assoc_data *assoc_data; |
c65dd147 | 5880 | const struct cfg80211_bss_ies *beacon_ies; |
4e74bfdb | 5881 | struct ieee80211_supported_band *sband; |
b0140fda | 5882 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; |
f2622138 | 5883 | const struct element *ssid_elem, *ht_elem, *vht_elem; |
2a33bee2 | 5884 | int i, err; |
c1041f10 | 5885 | bool override = false; |
f0706e82 | 5886 | |
66e67e41 JB |
5887 | assoc_data = kzalloc(sizeof(*assoc_data) + req->ie_len, GFP_KERNEL); |
5888 | if (!assoc_data) | |
5889 | return -ENOMEM; | |
5890 | ||
9caf0364 | 5891 | rcu_read_lock(); |
f2622138 JB |
5892 | ssid_elem = ieee80211_bss_get_elem(req->bss, WLAN_EID_SSID); |
5893 | if (!ssid_elem || ssid_elem->datalen > sizeof(assoc_data->ssid)) { | |
9caf0364 JB |
5894 | rcu_read_unlock(); |
5895 | kfree(assoc_data); | |
5896 | return -EINVAL; | |
5897 | } | |
f2622138 JB |
5898 | memcpy(assoc_data->ssid, ssid_elem->data, ssid_elem->datalen); |
5899 | assoc_data->ssid_len = ssid_elem->datalen; | |
b0140fda WG |
5900 | memcpy(bss_conf->ssid, assoc_data->ssid, assoc_data->ssid_len); |
5901 | bss_conf->ssid_len = assoc_data->ssid_len; | |
9caf0364 JB |
5902 | rcu_read_unlock(); |
5903 | ||
7b119dc0 JB |
5904 | if (ifmgd->associated) { |
5905 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; | |
5906 | ||
89f774e6 JB |
5907 | sdata_info(sdata, |
5908 | "disconnect from AP %pM for new assoc to %pM\n", | |
c8fe4b0b | 5909 | ifmgd->bssid, req->bss->bssid); |
7b119dc0 JB |
5910 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
5911 | WLAN_REASON_UNSPECIFIED, | |
5912 | false, frame_buf); | |
5913 | ||
a90faa9d EG |
5914 | ieee80211_report_disconnect(sdata, frame_buf, |
5915 | sizeof(frame_buf), true, | |
3f8a39ff JB |
5916 | WLAN_REASON_UNSPECIFIED, |
5917 | false); | |
7b119dc0 | 5918 | } |
66e67e41 JB |
5919 | |
5920 | if (ifmgd->auth_data && !ifmgd->auth_data->done) { | |
5921 | err = -EBUSY; | |
5922 | goto err_free; | |
af6b6374 | 5923 | } |
77fdaa12 | 5924 | |
66e67e41 JB |
5925 | if (ifmgd->assoc_data) { |
5926 | err = -EBUSY; | |
5927 | goto err_free; | |
5928 | } | |
77fdaa12 | 5929 | |
66e67e41 JB |
5930 | if (ifmgd->auth_data) { |
5931 | bool match; | |
5932 | ||
5933 | /* keep sta info, bssid if matching */ | |
b203ca39 | 5934 | match = ether_addr_equal(ifmgd->bssid, req->bss->bssid); |
66e67e41 | 5935 | ieee80211_destroy_auth_data(sdata, match); |
2a33bee2 GE |
5936 | } |
5937 | ||
66e67e41 | 5938 | /* prepare assoc data */ |
095d81ce | 5939 | |
d8ec4433 JO |
5940 | ifmgd->beacon_crc_valid = false; |
5941 | ||
095d81ce JB |
5942 | assoc_data->wmm = bss->wmm_used && |
5943 | (local->hw.queues >= IEEE80211_NUM_ACS); | |
095d81ce | 5944 | |
de5036aa JB |
5945 | /* |
5946 | * IEEE802.11n does not allow TKIP/WEP as pairwise ciphers in HT mode. | |
5947 | * We still associate in non-HT mode (11a/b/g) if any one of these | |
5948 | * ciphers is configured as pairwise. | |
5949 | * We can set this to true for non-11n hardware, that'll be checked | |
5950 | * separately along with the peer capabilities. | |
5951 | */ | |
1c4cb928 | 5952 | for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) { |
77fdaa12 JB |
5953 | if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 || |
5954 | req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP || | |
1c4cb928 | 5955 | req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) { |
a8243b72 | 5956 | ifmgd->flags |= IEEE80211_STA_DISABLE_HT; |
d545daba | 5957 | ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; |
41cbb0f5 | 5958 | ifmgd->flags |= IEEE80211_STA_DISABLE_HE; |
5dca295d | 5959 | ifmgd->flags |= IEEE80211_STA_DISABLE_EHT; |
1c4cb928 | 5960 | netdev_info(sdata->dev, |
54626324 | 5961 | "disabling HT/VHT/HE due to WEP/TKIP use\n"); |
1c4cb928 JB |
5962 | } |
5963 | } | |
77fdaa12 | 5964 | |
4e74bfdb | 5965 | sband = local->hw.wiphy->bands[req->bss->channel->band]; |
4e74bfdb | 5966 | |
5dca295d | 5967 | /* also disable HT/VHT/HE/EHT if the AP doesn't use WMM */ |
75e296e9 JB |
5968 | if (!bss->wmm_used) { |
5969 | ifmgd->flags |= IEEE80211_STA_DISABLE_HT; | |
d545daba | 5970 | ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; |
75e296e9 | 5971 | ifmgd->flags |= IEEE80211_STA_DISABLE_HE; |
5dca295d | 5972 | ifmgd->flags |= IEEE80211_STA_DISABLE_EHT; |
75e296e9 JB |
5973 | netdev_info(sdata->dev, |
5974 | "disabling HT/VHT/HE as WMM/QoS is not supported by the AP\n"); | |
d545daba MP |
5975 | } |
5976 | ||
ef96a842 BG |
5977 | memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa)); |
5978 | memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask, | |
5979 | sizeof(ifmgd->ht_capa_mask)); | |
5980 | ||
dd5ecfea JB |
5981 | memcpy(&ifmgd->vht_capa, &req->vht_capa, sizeof(ifmgd->vht_capa)); |
5982 | memcpy(&ifmgd->vht_capa_mask, &req->vht_capa_mask, | |
5983 | sizeof(ifmgd->vht_capa_mask)); | |
5984 | ||
7957c6c8 TP |
5985 | memcpy(&ifmgd->s1g_capa, &req->s1g_capa, sizeof(ifmgd->s1g_capa)); |
5986 | memcpy(&ifmgd->s1g_capa_mask, &req->s1g_capa_mask, | |
5987 | sizeof(ifmgd->s1g_capa_mask)); | |
5988 | ||
77fdaa12 | 5989 | if (req->ie && req->ie_len) { |
66e67e41 JB |
5990 | memcpy(assoc_data->ie, req->ie, req->ie_len); |
5991 | assoc_data->ie_len = req->ie_len; | |
5992 | } | |
f679f65d | 5993 | |
39404fee JM |
5994 | if (req->fils_kek) { |
5995 | /* should already be checked in cfg80211 - so warn */ | |
5996 | if (WARN_ON(req->fils_kek_len > FILS_MAX_KEK_LEN)) { | |
5997 | err = -EINVAL; | |
5998 | goto err_free; | |
5999 | } | |
6000 | memcpy(assoc_data->fils_kek, req->fils_kek, | |
6001 | req->fils_kek_len); | |
6002 | assoc_data->fils_kek_len = req->fils_kek_len; | |
6003 | } | |
6004 | ||
6005 | if (req->fils_nonces) | |
6006 | memcpy(assoc_data->fils_nonces, req->fils_nonces, | |
6007 | 2 * FILS_NONCE_LEN); | |
6008 | ||
66e67e41 | 6009 | assoc_data->bss = req->bss; |
66e67e41 | 6010 | assoc_data->capability = req->bss->capability; |
66e67e41 JB |
6011 | assoc_data->supp_rates = bss->supp_rates; |
6012 | assoc_data->supp_rates_len = bss->supp_rates_len; | |
9dde6423 | 6013 | |
9caf0364 | 6014 | rcu_read_lock(); |
f2622138 JB |
6015 | ht_elem = ieee80211_bss_get_elem(req->bss, WLAN_EID_HT_OPERATION); |
6016 | if (ht_elem && ht_elem->datalen >= sizeof(struct ieee80211_ht_operation)) | |
9dde6423 | 6017 | assoc_data->ap_ht_param = |
f2622138 | 6018 | ((struct ieee80211_ht_operation *)(ht_elem->data))->ht_param; |
57fa5e85 | 6019 | else if (!is_6ghz) |
a8243b72 | 6020 | ifmgd->flags |= IEEE80211_STA_DISABLE_HT; |
f2622138 | 6021 | vht_elem = ieee80211_bss_get_elem(req->bss, WLAN_EID_VHT_CAPABILITY); |
636ccdae | 6022 | if (vht_elem && vht_elem->datalen >= sizeof(struct ieee80211_vht_cap)) { |
f2622138 | 6023 | memcpy(&assoc_data->ap_vht_cap, vht_elem->data, |
b08fbbd8 | 6024 | sizeof(struct ieee80211_vht_cap)); |
636ccdae | 6025 | } else if (is_5ghz) { |
5dca295d IP |
6026 | sdata_info(sdata, |
6027 | "VHT capa missing/short, disabling VHT/HE/EHT\n"); | |
57fa5e85 | 6028 | ifmgd->flags |= IEEE80211_STA_DISABLE_VHT | |
5dca295d IP |
6029 | IEEE80211_STA_DISABLE_HE | |
6030 | IEEE80211_STA_DISABLE_EHT; | |
636ccdae | 6031 | } |
9caf0364 | 6032 | rcu_read_unlock(); |
63f170e0 | 6033 | |
848955cc | 6034 | if (WARN((sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_UAPSD) && |
30686bf7 | 6035 | ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK), |
848955cc JB |
6036 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n")) |
6037 | sdata->vif.driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; | |
6038 | ||
ab13315a | 6039 | if (bss->wmm_used && bss->uapsd_supported && |
848955cc | 6040 | (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_UAPSD)) { |
76f0303d | 6041 | assoc_data->uapsd = true; |
ab13315a KV |
6042 | ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED; |
6043 | } else { | |
76f0303d | 6044 | assoc_data->uapsd = false; |
ab13315a KV |
6045 | ifmgd->flags &= ~IEEE80211_STA_UAPSD_ENABLED; |
6046 | } | |
6047 | ||
77fdaa12 | 6048 | if (req->prev_bssid) |
66e67e41 | 6049 | memcpy(assoc_data->prev_bssid, req->prev_bssid, ETH_ALEN); |
77fdaa12 JB |
6050 | |
6051 | if (req->use_mfp) { | |
6052 | ifmgd->mfp = IEEE80211_MFP_REQUIRED; | |
6053 | ifmgd->flags |= IEEE80211_STA_MFP_ENABLED; | |
6054 | } else { | |
6055 | ifmgd->mfp = IEEE80211_MFP_DISABLED; | |
6056 | ifmgd->flags &= ~IEEE80211_STA_MFP_ENABLED; | |
6057 | } | |
6058 | ||
cd2f5dd7 AK |
6059 | if (req->flags & ASSOC_REQ_USE_RRM) |
6060 | ifmgd->flags |= IEEE80211_STA_ENABLE_RRM; | |
6061 | else | |
6062 | ifmgd->flags &= ~IEEE80211_STA_ENABLE_RRM; | |
6063 | ||
77fdaa12 JB |
6064 | if (req->crypto.control_port) |
6065 | ifmgd->flags |= IEEE80211_STA_CONTROL_PORT; | |
6066 | else | |
6067 | ifmgd->flags &= ~IEEE80211_STA_CONTROL_PORT; | |
6068 | ||
a621fa4d JB |
6069 | sdata->control_port_protocol = req->crypto.control_port_ethertype; |
6070 | sdata->control_port_no_encrypt = req->crypto.control_port_no_encrypt; | |
018f6fbf DK |
6071 | sdata->control_port_over_nl80211 = |
6072 | req->crypto.control_port_over_nl80211; | |
7f3f96ce | 6073 | sdata->control_port_no_preauth = req->crypto.control_port_no_preauth; |
2475b1cc MS |
6074 | sdata->encrypt_headroom = ieee80211_cs_headroom(local, &req->crypto, |
6075 | sdata->vif.type); | |
a621fa4d | 6076 | |
66e67e41 JB |
6077 | /* kick off associate process */ |
6078 | ||
6079 | ifmgd->assoc_data = assoc_data; | |
826262c3 | 6080 | ifmgd->dtim_period = 0; |
989c6505 | 6081 | ifmgd->have_beacon = false; |
66e67e41 | 6082 | |
c1041f10 CRI |
6083 | /* override HT/VHT configuration only if the AP and we support it */ |
6084 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) { | |
6085 | struct ieee80211_sta_ht_cap sta_ht_cap; | |
6086 | ||
6087 | if (req->flags & ASSOC_REQ_DISABLE_HT) | |
6088 | override = true; | |
6089 | ||
6090 | memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap)); | |
6091 | ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap); | |
6092 | ||
6093 | /* check for 40 MHz disable override */ | |
6094 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_40MHZ) && | |
6095 | sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && | |
6096 | !(sta_ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) | |
6097 | override = true; | |
6098 | ||
6099 | if (!(ifmgd->flags & IEEE80211_STA_DISABLE_VHT) && | |
6100 | req->flags & ASSOC_REQ_DISABLE_VHT) | |
6101 | override = true; | |
6102 | } | |
6103 | ||
6104 | if (req->flags & ASSOC_REQ_DISABLE_HT) { | |
636ccdae | 6105 | mlme_dbg(sdata, "HT disabled by flag, disabling HT/VHT/HE\n"); |
c1041f10 CRI |
6106 | ifmgd->flags |= IEEE80211_STA_DISABLE_HT; |
6107 | ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; | |
75e296e9 | 6108 | ifmgd->flags |= IEEE80211_STA_DISABLE_HE; |
5dca295d | 6109 | ifmgd->flags |= IEEE80211_STA_DISABLE_EHT; |
c1041f10 CRI |
6110 | } |
6111 | ||
636ccdae JB |
6112 | if (req->flags & ASSOC_REQ_DISABLE_VHT) { |
6113 | mlme_dbg(sdata, "VHT disabled by flag, disabling VHT\n"); | |
c1041f10 | 6114 | ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; |
636ccdae | 6115 | } |
c1041f10 | 6116 | |
636ccdae | 6117 | if (req->flags & ASSOC_REQ_DISABLE_HE) { |
5dca295d | 6118 | mlme_dbg(sdata, "HE disabled by flag, disabling HE/EHT\n"); |
b6db0f89 | 6119 | ifmgd->flags |= IEEE80211_STA_DISABLE_HE; |
5dca295d | 6120 | ifmgd->flags |= IEEE80211_STA_DISABLE_EHT; |
636ccdae | 6121 | } |
b6db0f89 | 6122 | |
1ca98016 MS |
6123 | if (req->flags & ASSOC_REQ_DISABLE_EHT) |
6124 | ifmgd->flags |= IEEE80211_STA_DISABLE_EHT; | |
6125 | ||
c1041f10 | 6126 | err = ieee80211_prep_connection(sdata, req->bss, true, override); |
a1cf775d JB |
6127 | if (err) |
6128 | goto err_clear; | |
66e67e41 | 6129 | |
79ea0a5f ST |
6130 | if (ifmgd->req_smps == IEEE80211_SMPS_AUTOMATIC) { |
6131 | if (ifmgd->powersave) | |
6132 | sdata->smps_mode = IEEE80211_SMPS_DYNAMIC; | |
6133 | else | |
6134 | sdata->smps_mode = IEEE80211_SMPS_OFF; | |
6135 | } else { | |
6136 | sdata->smps_mode = ifmgd->req_smps; | |
6137 | } | |
6138 | ||
c65dd147 EG |
6139 | rcu_read_lock(); |
6140 | beacon_ies = rcu_dereference(req->bss->beacon_ies); | |
826262c3 | 6141 | |
30686bf7 | 6142 | if (ieee80211_hw_check(&sdata->local->hw, NEED_DTIM_BEFORE_ASSOC) && |
c65dd147 EG |
6143 | !beacon_ies) { |
6144 | /* | |
6145 | * Wait up to one beacon interval ... | |
6146 | * should this be more if we miss one? | |
6147 | */ | |
6148 | sdata_info(sdata, "waiting for beacon from %pM\n", | |
6149 | ifmgd->bssid); | |
6150 | assoc_data->timeout = TU_TO_EXP_TIME(req->bss->beacon_interval); | |
89afe614 | 6151 | assoc_data->timeout_started = true; |
c65dd147 EG |
6152 | assoc_data->need_beacon = true; |
6153 | } else if (beacon_ies) { | |
3b3ec3d5 | 6154 | const struct element *elem; |
ef429dad JB |
6155 | u8 dtim_count = 0; |
6156 | ||
78ac51f8 SS |
6157 | ieee80211_get_dtim(beacon_ies, &dtim_count, |
6158 | &ifmgd->dtim_period); | |
6159 | ||
989c6505 | 6160 | ifmgd->have_beacon = true; |
66e67e41 | 6161 | assoc_data->timeout = jiffies; |
89afe614 | 6162 | assoc_data->timeout_started = true; |
ef429dad | 6163 | |
30686bf7 | 6164 | if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY)) { |
ef429dad JB |
6165 | sdata->vif.bss_conf.sync_tsf = beacon_ies->tsf; |
6166 | sdata->vif.bss_conf.sync_device_ts = | |
6167 | bss->device_ts_beacon; | |
6168 | sdata->vif.bss_conf.sync_dtim_count = dtim_count; | |
6169 | } | |
78ac51f8 | 6170 | |
3b3ec3d5 ST |
6171 | elem = cfg80211_find_ext_elem(WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION, |
6172 | beacon_ies->data, beacon_ies->len); | |
6173 | if (elem && elem->datalen >= 3) | |
6174 | sdata->vif.bss_conf.profile_periodicity = elem->data[2]; | |
bbc6f03f JB |
6175 | else |
6176 | sdata->vif.bss_conf.profile_periodicity = 0; | |
78ac51f8 | 6177 | |
3b3ec3d5 ST |
6178 | elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, |
6179 | beacon_ies->data, beacon_ies->len); | |
6180 | if (elem && elem->datalen >= 11 && | |
6181 | (elem->data[10] & WLAN_EXT_CAPA11_EMA_SUPPORT)) | |
78ac51f8 | 6182 | sdata->vif.bss_conf.ema_ap = true; |
bbc6f03f JB |
6183 | else |
6184 | sdata->vif.bss_conf.ema_ap = false; | |
c65dd147 EG |
6185 | } else { |
6186 | assoc_data->timeout = jiffies; | |
89afe614 | 6187 | assoc_data->timeout_started = true; |
66e67e41 | 6188 | } |
c65dd147 EG |
6189 | rcu_read_unlock(); |
6190 | ||
8d61ffa5 | 6191 | run_again(sdata, assoc_data->timeout); |
66e67e41 | 6192 | |
fcff4f10 PS |
6193 | if (bss->corrupt_data) { |
6194 | char *corrupt_type = "data"; | |
6195 | if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_BEACON) { | |
6196 | if (bss->corrupt_data & | |
6197 | IEEE80211_BSS_CORRUPT_PROBE_RESP) | |
6198 | corrupt_type = "beacon and probe response"; | |
6199 | else | |
6200 | corrupt_type = "beacon"; | |
6201 | } else if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_PROBE_RESP) | |
6202 | corrupt_type = "probe response"; | |
bdcbd8e0 JB |
6203 | sdata_info(sdata, "associating with AP with corrupt %s\n", |
6204 | corrupt_type); | |
fcff4f10 PS |
6205 | } |
6206 | ||
8d61ffa5 | 6207 | return 0; |
66e67e41 | 6208 | err_clear: |
c84a67a2 | 6209 | eth_zero_addr(ifmgd->bssid); |
3d2abdfd | 6210 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID); |
66e67e41 JB |
6211 | ifmgd->assoc_data = NULL; |
6212 | err_free: | |
6213 | kfree(assoc_data); | |
66e67e41 | 6214 | return err; |
f0706e82 JB |
6215 | } |
6216 | ||
77fdaa12 | 6217 | int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, |
63c9c5e7 | 6218 | struct cfg80211_deauth_request *req) |
f0706e82 | 6219 | { |
46900298 | 6220 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
6ae16775 | 6221 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
6863255b | 6222 | bool tx = !req->local_state_change; |
15fae341 JB |
6223 | struct ieee80211_prep_tx_info info = { |
6224 | .subtype = IEEE80211_STYPE_DEAUTH, | |
6225 | }; | |
f0706e82 | 6226 | |
c9c3a060 JB |
6227 | if (ifmgd->auth_data && |
6228 | ether_addr_equal(ifmgd->auth_data->bss->bssid, req->bssid)) { | |
6229 | sdata_info(sdata, | |
6230 | "aborting authentication with %pM by local choice (Reason: %u=%s)\n", | |
6231 | req->bssid, req->reason_code, | |
6232 | ieee80211_get_reason_code_string(req->reason_code)); | |
0ff71613 | 6233 | |
15fae341 | 6234 | drv_mgd_prepare_tx(sdata->local, sdata, &info); |
4b08d1b6 | 6235 | ieee80211_send_deauth_disassoc(sdata, req->bssid, req->bssid, |
37ad3888 | 6236 | IEEE80211_STYPE_DEAUTH, |
6863255b | 6237 | req->reason_code, tx, |
37ad3888 | 6238 | frame_buf); |
86552017 | 6239 | ieee80211_destroy_auth_data(sdata, false); |
a90faa9d EG |
6240 | ieee80211_report_disconnect(sdata, frame_buf, |
6241 | sizeof(frame_buf), true, | |
3f8a39ff | 6242 | req->reason_code, false); |
15fae341 | 6243 | drv_mgd_complete_tx(sdata->local, sdata, &info); |
c9c3a060 | 6244 | return 0; |
8c7d857c EG |
6245 | } |
6246 | ||
a64cba3c AO |
6247 | if (ifmgd->assoc_data && |
6248 | ether_addr_equal(ifmgd->assoc_data->bss->bssid, req->bssid)) { | |
6249 | sdata_info(sdata, | |
6250 | "aborting association with %pM by local choice (Reason: %u=%s)\n", | |
6251 | req->bssid, req->reason_code, | |
6252 | ieee80211_get_reason_code_string(req->reason_code)); | |
6253 | ||
15fae341 | 6254 | drv_mgd_prepare_tx(sdata->local, sdata, &info); |
4b08d1b6 | 6255 | ieee80211_send_deauth_disassoc(sdata, req->bssid, req->bssid, |
a64cba3c AO |
6256 | IEEE80211_STYPE_DEAUTH, |
6257 | req->reason_code, tx, | |
6258 | frame_buf); | |
e6f462df | 6259 | ieee80211_destroy_assoc_data(sdata, false, true); |
a64cba3c AO |
6260 | ieee80211_report_disconnect(sdata, frame_buf, |
6261 | sizeof(frame_buf), true, | |
3f8a39ff | 6262 | req->reason_code, false); |
a64cba3c AO |
6263 | return 0; |
6264 | } | |
6265 | ||
86552017 | 6266 | if (ifmgd->associated && |
c8fe4b0b | 6267 | ether_addr_equal(ifmgd->bssid, req->bssid)) { |
c9c3a060 JB |
6268 | sdata_info(sdata, |
6269 | "deauthenticating from %pM by local choice (Reason: %u=%s)\n", | |
6270 | req->bssid, req->reason_code, | |
6271 | ieee80211_get_reason_code_string(req->reason_code)); | |
6272 | ||
86552017 JB |
6273 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
6274 | req->reason_code, tx, frame_buf); | |
a90faa9d EG |
6275 | ieee80211_report_disconnect(sdata, frame_buf, |
6276 | sizeof(frame_buf), true, | |
3f8a39ff | 6277 | req->reason_code, false); |
15fae341 | 6278 | drv_mgd_complete_tx(sdata->local, sdata, &info); |
c9c3a060 JB |
6279 | return 0; |
6280 | } | |
86552017 | 6281 | |
c9c3a060 | 6282 | return -ENOTCONN; |
f0706e82 | 6283 | } |
84363e6e | 6284 | |
77fdaa12 | 6285 | int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, |
63c9c5e7 | 6286 | struct cfg80211_disassoc_request *req) |
9c6bd790 | 6287 | { |
77fdaa12 | 6288 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
e69e95db | 6289 | u8 bssid[ETH_ALEN]; |
6ae16775 | 6290 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
9c6bd790 | 6291 | |
8d8b261a JB |
6292 | /* |
6293 | * cfg80211 should catch this ... but it's racy since | |
6294 | * we can receive a disassoc frame, process it, hand it | |
6295 | * to cfg80211 while that's in a locked section already | |
6296 | * trying to tell us that the user wants to disconnect. | |
6297 | */ | |
5dfad108 | 6298 | if (ifmgd->assoc_bss != req->bss) |
77fdaa12 | 6299 | return -ENOLINK; |
77fdaa12 | 6300 | |
bdcbd8e0 | 6301 | sdata_info(sdata, |
dfa1ad29 CO |
6302 | "disassociating from %pM by local choice (Reason: %u=%s)\n", |
6303 | req->bss->bssid, req->reason_code, ieee80211_get_reason_code_string(req->reason_code)); | |
0ff71613 | 6304 | |
e69e95db | 6305 | memcpy(bssid, req->bss->bssid, ETH_ALEN); |
37ad3888 JB |
6306 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DISASSOC, |
6307 | req->reason_code, !req->local_state_change, | |
6308 | frame_buf); | |
10f644a4 | 6309 | |
a90faa9d | 6310 | ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, |
3f8a39ff | 6311 | req->reason_code, false); |
bc83b681 | 6312 | |
10f644a4 JB |
6313 | return 0; |
6314 | } | |
026331c4 | 6315 | |
afa762f6 | 6316 | void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata) |
54e4ffb2 JB |
6317 | { |
6318 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
6319 | ||
49921859 BG |
6320 | /* |
6321 | * Make sure some work items will not run after this, | |
6322 | * they will not do anything but might not have been | |
6323 | * cancelled when disconnecting. | |
6324 | */ | |
6325 | cancel_work_sync(&ifmgd->monitor_work); | |
6326 | cancel_work_sync(&ifmgd->beacon_connection_loss_work); | |
6327 | cancel_work_sync(&ifmgd->request_smps_work); | |
6328 | cancel_work_sync(&ifmgd->csa_connection_drop_work); | |
6329 | cancel_work_sync(&ifmgd->chswitch_work); | |
81dd2b88 | 6330 | cancel_delayed_work_sync(&ifmgd->tdls_peer_del_work); |
49921859 | 6331 | |
8d61ffa5 | 6332 | sdata_lock(sdata); |
959867fa JB |
6333 | if (ifmgd->assoc_data) { |
6334 | struct cfg80211_bss *bss = ifmgd->assoc_data->bss; | |
e6f462df | 6335 | ieee80211_destroy_assoc_data(sdata, false, false); |
959867fa JB |
6336 | cfg80211_assoc_timeout(sdata->dev, bss); |
6337 | } | |
54e4ffb2 JB |
6338 | if (ifmgd->auth_data) |
6339 | ieee80211_destroy_auth_data(sdata, false); | |
1277b4a9 LK |
6340 | spin_lock_bh(&ifmgd->teardown_lock); |
6341 | if (ifmgd->teardown_skb) { | |
6342 | kfree_skb(ifmgd->teardown_skb); | |
6343 | ifmgd->teardown_skb = NULL; | |
6344 | ifmgd->orig_teardown_skb = NULL; | |
6345 | } | |
4d9ec73d JM |
6346 | kfree(ifmgd->assoc_req_ies); |
6347 | ifmgd->assoc_req_ies = NULL; | |
6348 | ifmgd->assoc_req_ies_len = 0; | |
1277b4a9 | 6349 | spin_unlock_bh(&ifmgd->teardown_lock); |
54e4ffb2 | 6350 | del_timer_sync(&ifmgd->timer); |
8d61ffa5 | 6351 | sdata_unlock(sdata); |
54e4ffb2 JB |
6352 | } |
6353 | ||
a97c13c3 JO |
6354 | void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif, |
6355 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
769f07d8 | 6356 | s32 rssi_level, |
a97c13c3 JO |
6357 | gfp_t gfp) |
6358 | { | |
6359 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
6360 | ||
769f07d8 | 6361 | trace_api_cqm_rssi_notify(sdata, rssi_event, rssi_level); |
b5878a2d | 6362 | |
bee427b8 | 6363 | cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, rssi_level, gfp); |
a97c13c3 JO |
6364 | } |
6365 | EXPORT_SYMBOL(ieee80211_cqm_rssi_notify); | |
98f03342 JB |
6366 | |
6367 | void ieee80211_cqm_beacon_loss_notify(struct ieee80211_vif *vif, gfp_t gfp) | |
6368 | { | |
6369 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
6370 | ||
6371 | trace_api_cqm_beacon_loss_notify(sdata->local, sdata); | |
6372 | ||
6373 | cfg80211_cqm_beacon_loss_notify(sdata->dev, gfp); | |
6374 | } | |
6375 | EXPORT_SYMBOL(ieee80211_cqm_beacon_loss_notify); | |
f344c58c JB |
6376 | |
6377 | static void _ieee80211_enable_rssi_reports(struct ieee80211_sub_if_data *sdata, | |
6378 | int rssi_min_thold, | |
6379 | int rssi_max_thold) | |
6380 | { | |
6381 | trace_api_enable_rssi_reports(sdata, rssi_min_thold, rssi_max_thold); | |
6382 | ||
6383 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
6384 | return; | |
6385 | ||
6386 | /* | |
6387 | * Scale up threshold values before storing it, as the RSSI averaging | |
6388 | * algorithm uses a scaled up value as well. Change this scaling | |
6389 | * factor if the RSSI averaging algorithm changes. | |
6390 | */ | |
6391 | sdata->u.mgd.rssi_min_thold = rssi_min_thold*16; | |
6392 | sdata->u.mgd.rssi_max_thold = rssi_max_thold*16; | |
6393 | } | |
6394 | ||
6395 | void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, | |
6396 | int rssi_min_thold, | |
6397 | int rssi_max_thold) | |
6398 | { | |
6399 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
6400 | ||
6401 | WARN_ON(rssi_min_thold == rssi_max_thold || | |
6402 | rssi_min_thold > rssi_max_thold); | |
6403 | ||
6404 | _ieee80211_enable_rssi_reports(sdata, rssi_min_thold, | |
6405 | rssi_max_thold); | |
6406 | } | |
6407 | EXPORT_SYMBOL(ieee80211_enable_rssi_reports); | |
6408 | ||
6409 | void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) | |
6410 | { | |
6411 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
6412 | ||
6413 | _ieee80211_enable_rssi_reports(sdata, 0, 0); | |
6414 | } | |
6415 | EXPORT_SYMBOL(ieee80211_disable_rssi_reports); |