Commit | Line | Data |
---|---|---|
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 |
23a5f0af | 11 | * Copyright (C) 2018 - 2022 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 | ||
ba323e29 | 145 | static ieee80211_conn_flags_t |
5bd5666d | 146 | ieee80211_determine_chantype(struct ieee80211_link_data *link, |
6565ec9b JB |
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 | { |
5bd5666d | 157 | struct ieee80211_sub_if_data *sdata = link->sdata; |
6565ec9b | 158 | struct cfg80211_chan_def vht_chandef; |
179b8fc7 | 159 | struct ieee80211_sta_ht_cap sta_ht_cap; |
ba323e29 JB |
160 | ieee80211_conn_flags_t ret; |
161 | u32 ht_cfreq; | |
6565ec9b | 162 | |
2a38075c | 163 | memset(chandef, 0, sizeof(struct cfg80211_chan_def)); |
6565ec9b JB |
164 | chandef->chan = channel; |
165 | chandef->width = NL80211_CHAN_WIDTH_20_NOHT; | |
166 | chandef->center_freq1 = channel->center_freq; | |
b6011960 | 167 | chandef->freq1_offset = channel->freq_offset; |
6565ec9b | 168 | |
57fa5e85 | 169 | if (channel->band == NL80211_BAND_6GHZ) { |
5dca295d IP |
170 | if (!ieee80211_chandef_he_6ghz_oper(sdata, he_oper, eht_oper, |
171 | chandef)) { | |
636ccdae | 172 | mlme_dbg(sdata, |
5dca295d | 173 | "bad 6 GHz operation, disabling HT/VHT/HE/EHT\n"); |
ba323e29 JB |
174 | ret = IEEE80211_CONN_DISABLE_HT | |
175 | IEEE80211_CONN_DISABLE_VHT | | |
176 | IEEE80211_CONN_DISABLE_HE | | |
177 | IEEE80211_CONN_DISABLE_EHT; | |
636ccdae | 178 | } else { |
523f3ec0 | 179 | ret = 0; |
636ccdae | 180 | } |
57fa5e85 JB |
181 | vht_chandef = *chandef; |
182 | goto out; | |
75f87eae TP |
183 | } else if (sband->band == NL80211_BAND_S1GHZ) { |
184 | if (!ieee80211_chandef_s1g_oper(s1g_oper, chandef)) { | |
185 | sdata_info(sdata, | |
186 | "Missing S1G Operation Element? Trying operating == primary\n"); | |
187 | chandef->width = ieee80211_s1g_channel_width(channel); | |
188 | } | |
57fa5e85 | 189 | |
ba323e29 JB |
190 | ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_40MHZ | |
191 | IEEE80211_CONN_DISABLE_VHT | | |
192 | IEEE80211_CONN_DISABLE_80P80MHZ | | |
193 | IEEE80211_CONN_DISABLE_160MHZ; | |
1d00ce80 TP |
194 | goto out; |
195 | } | |
196 | ||
75f87eae TP |
197 | memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap)); |
198 | ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap); | |
199 | ||
b1b1ae2c | 200 | if (!ht_oper || !sta_ht_cap.ht_supported) { |
636ccdae | 201 | mlme_dbg(sdata, "HT operation missing / HT not supported\n"); |
ba323e29 JB |
202 | ret = IEEE80211_CONN_DISABLE_HT | |
203 | IEEE80211_CONN_DISABLE_VHT | | |
204 | IEEE80211_CONN_DISABLE_HE | | |
205 | IEEE80211_CONN_DISABLE_EHT; | |
6565ec9b JB |
206 | goto out; |
207 | } | |
208 | ||
209 | chandef->width = NL80211_CHAN_WIDTH_20; | |
210 | ||
211 | ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan, | |
212 | channel->band); | |
213 | /* check that channel matches the right operating channel */ | |
5cdaed1e | 214 | if (!tracking && channel->center_freq != ht_cfreq) { |
6565ec9b JB |
215 | /* |
216 | * It's possible that some APs are confused here; | |
217 | * Netgear WNDR3700 sometimes reports 4 higher than | |
218 | * the actual channel in association responses, but | |
219 | * since we look at probe response/beacon data here | |
220 | * it should be OK. | |
221 | */ | |
5cdaed1e JB |
222 | sdata_info(sdata, |
223 | "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n", | |
224 | channel->center_freq, ht_cfreq, | |
225 | ht_oper->primary_chan, channel->band); | |
ba323e29 JB |
226 | ret = IEEE80211_CONN_DISABLE_HT | |
227 | IEEE80211_CONN_DISABLE_VHT | | |
228 | IEEE80211_CONN_DISABLE_HE | | |
229 | IEEE80211_CONN_DISABLE_EHT; | |
6565ec9b JB |
230 | goto out; |
231 | } | |
232 | ||
233 | /* check 40 MHz support, if we have it */ | |
179b8fc7 | 234 | if (sta_ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) { |
8ac3c704 | 235 | ieee80211_chandef_ht_oper(ht_oper, chandef); |
6565ec9b | 236 | } else { |
636ccdae | 237 | mlme_dbg(sdata, "40 MHz not supported\n"); |
6565ec9b | 238 | /* 40 MHz (and 80 MHz) must be supported for VHT */ |
ba323e29 | 239 | ret = IEEE80211_CONN_DISABLE_VHT; |
85220d71 | 240 | /* also mark 40 MHz disabled */ |
ba323e29 | 241 | ret |= IEEE80211_CONN_DISABLE_40MHZ; |
6565ec9b JB |
242 | goto out; |
243 | } | |
244 | ||
245 | if (!vht_oper || !sband->vht_cap.vht_supported) { | |
636ccdae | 246 | mlme_dbg(sdata, "VHT operation missing / VHT not supported\n"); |
ba323e29 | 247 | ret = IEEE80211_CONN_DISABLE_VHT; |
6565ec9b JB |
248 | goto out; |
249 | } | |
250 | ||
8ac3c704 | 251 | vht_chandef = *chandef; |
5bd5666d | 252 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && |
ba323e29 | 253 | he_oper && |
41cbb0f5 LC |
254 | (le32_to_cpu(he_oper->he_oper_params) & |
255 | IEEE80211_HE_OPERATION_VHT_OPER_INFO)) { | |
256 | struct ieee80211_vht_operation he_oper_vht_cap; | |
257 | ||
258 | /* | |
259 | * Set only first 3 bytes (other 2 aren't used in | |
260 | * ieee80211_chandef_vht_oper() anyway) | |
261 | */ | |
262 | memcpy(&he_oper_vht_cap, he_oper->optional, 3); | |
263 | he_oper_vht_cap.basic_mcs_set = cpu_to_le16(0); | |
264 | ||
2a333a0d | 265 | if (!ieee80211_chandef_vht_oper(&sdata->local->hw, vht_cap_info, |
7eb26df2 | 266 | &he_oper_vht_cap, ht_oper, |
41cbb0f5 | 267 | &vht_chandef)) { |
5bd5666d | 268 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE)) |
41cbb0f5 | 269 | sdata_info(sdata, |
636ccdae | 270 | "HE AP VHT information is invalid, disabling HE\n"); |
ba323e29 | 271 | ret = IEEE80211_CONN_DISABLE_HE | IEEE80211_CONN_DISABLE_EHT; |
41cbb0f5 LC |
272 | goto out; |
273 | } | |
2a333a0d JB |
274 | } else if (!ieee80211_chandef_vht_oper(&sdata->local->hw, |
275 | vht_cap_info, | |
276 | vht_oper, ht_oper, | |
277 | &vht_chandef)) { | |
5bd5666d | 278 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) |
30eb1dc2 | 279 | sdata_info(sdata, |
636ccdae | 280 | "AP VHT information is invalid, disabling VHT\n"); |
ba323e29 | 281 | ret = IEEE80211_CONN_DISABLE_VHT; |
6565ec9b JB |
282 | goto out; |
283 | } | |
284 | ||
285 | if (!cfg80211_chandef_valid(&vht_chandef)) { | |
5bd5666d | 286 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) |
30eb1dc2 | 287 | sdata_info(sdata, |
636ccdae | 288 | "AP VHT information is invalid, disabling VHT\n"); |
ba323e29 | 289 | ret = IEEE80211_CONN_DISABLE_VHT; |
6565ec9b JB |
290 | goto out; |
291 | } | |
292 | ||
293 | if (cfg80211_chandef_identical(chandef, &vht_chandef)) { | |
294 | ret = 0; | |
295 | goto out; | |
296 | } | |
297 | ||
298 | if (!cfg80211_chandef_compatible(chandef, &vht_chandef)) { | |
5bd5666d | 299 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) |
30eb1dc2 | 300 | sdata_info(sdata, |
636ccdae | 301 | "AP VHT information doesn't match HT, disabling VHT\n"); |
ba323e29 | 302 | ret = IEEE80211_CONN_DISABLE_VHT; |
6565ec9b JB |
303 | goto out; |
304 | } | |
305 | ||
306 | *chandef = vht_chandef; | |
307 | ||
1e0b3b0b IP |
308 | /* |
309 | * handle the case that the EHT operation indicates that it holds EHT | |
310 | * operation information (in case that the channel width differs from | |
311 | * the channel width reported in HT/VHT/HE). | |
312 | */ | |
313 | if (eht_oper && (eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT)) { | |
314 | struct cfg80211_chan_def eht_chandef = *chandef; | |
315 | ||
316 | ieee80211_chandef_eht_oper(sdata, eht_oper, | |
317 | eht_chandef.width == | |
318 | NL80211_CHAN_WIDTH_160, | |
319 | false, &eht_chandef); | |
320 | ||
321 | if (!cfg80211_chandef_valid(&eht_chandef)) { | |
5bd5666d | 322 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT)) |
1e0b3b0b IP |
323 | sdata_info(sdata, |
324 | "AP EHT information is invalid, disabling EHT\n"); | |
ba323e29 | 325 | ret = IEEE80211_CONN_DISABLE_EHT; |
1e0b3b0b IP |
326 | goto out; |
327 | } | |
328 | ||
329 | if (!cfg80211_chandef_compatible(chandef, &eht_chandef)) { | |
5bd5666d | 330 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT)) |
1e0b3b0b IP |
331 | sdata_info(sdata, |
332 | "AP EHT information is incompatible, disabling EHT\n"); | |
ba323e29 | 333 | ret = IEEE80211_CONN_DISABLE_EHT; |
1e0b3b0b IP |
334 | goto out; |
335 | } | |
336 | ||
337 | *chandef = eht_chandef; | |
338 | } | |
339 | ||
6565ec9b JB |
340 | ret = 0; |
341 | ||
342 | out: | |
963a1852 JB |
343 | /* |
344 | * When tracking the current AP, don't do any further checks if the | |
345 | * new chandef is identical to the one we're currently using for the | |
346 | * connection. This keeps us from playing ping-pong with regulatory, | |
347 | * without it the following can happen (for example): | |
348 | * - connect to an AP with 80 MHz, world regdom allows 80 MHz | |
349 | * - AP advertises regdom US | |
350 | * - CRDA loads regdom US with 80 MHz prohibited (old database) | |
351 | * - the code below detects an unsupported channel, downgrades, and | |
352 | * we disconnect from the AP in the caller | |
353 | * - disconnect causes CRDA to reload world regdomain and the game | |
354 | * starts anew. | |
355 | * (see https://bugzilla.kernel.org/show_bug.cgi?id=70881) | |
356 | * | |
357 | * It seems possible that there are still scenarios with CSA or real | |
358 | * bandwidth changes where a this could happen, but those cases are | |
359 | * less common and wouldn't completely prevent using the AP. | |
360 | */ | |
361 | if (tracking && | |
5bd5666d | 362 | cfg80211_chandef_identical(chandef, &link->conf->chandef)) |
963a1852 JB |
363 | return ret; |
364 | ||
586e01ed | 365 | /* don't print the message below for VHT mismatch if VHT is disabled */ |
ba323e29 | 366 | if (ret & IEEE80211_CONN_DISABLE_VHT) |
586e01ed JB |
367 | vht_chandef = *chandef; |
368 | ||
ddfe49b4 JB |
369 | /* |
370 | * Ignore the DISABLED flag when we're already connected and only | |
371 | * tracking the APs beacon for bandwidth changes - otherwise we | |
372 | * might get disconnected here if we connect to an AP, update our | |
373 | * regulatory information based on the AP's country IE and the | |
374 | * information we have is wrong/outdated and disables the channel | |
375 | * that we're actually using for the connection to the AP. | |
376 | */ | |
6565ec9b | 377 | while (!cfg80211_chandef_usable(sdata->local->hw.wiphy, chandef, |
ddfe49b4 JB |
378 | tracking ? 0 : |
379 | IEEE80211_CHAN_DISABLED)) { | |
6565ec9b | 380 | if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) { |
ba323e29 JB |
381 | ret = IEEE80211_CONN_DISABLE_HT | |
382 | IEEE80211_CONN_DISABLE_VHT | | |
383 | IEEE80211_CONN_DISABLE_HE | | |
384 | IEEE80211_CONN_DISABLE_EHT; | |
b56e4b85 | 385 | break; |
6565ec9b JB |
386 | } |
387 | ||
e6b7cde4 | 388 | ret |= ieee80211_chandef_downgrade(chandef); |
6565ec9b JB |
389 | } |
390 | ||
8cadb207 DG |
391 | if (!he_oper || !cfg80211_chandef_usable(sdata->wdev.wiphy, chandef, |
392 | IEEE80211_CHAN_NO_HE)) | |
ba323e29 | 393 | ret |= IEEE80211_CONN_DISABLE_HE | IEEE80211_CONN_DISABLE_EHT; |
5dca295d IP |
394 | |
395 | if (!eht_oper || !cfg80211_chandef_usable(sdata->wdev.wiphy, chandef, | |
396 | IEEE80211_CHAN_NO_EHT)) | |
ba323e29 | 397 | ret |= IEEE80211_CONN_DISABLE_EHT; |
b5db1aca | 398 | |
5cdaed1e | 399 | if (chandef->width != vht_chandef.width && !tracking) |
6565ec9b JB |
400 | sdata_info(sdata, |
401 | "capabilities/regulatory prevented using AP HT/VHT configuration, downgraded\n"); | |
402 | ||
403 | WARN_ON_ONCE(!cfg80211_chandef_valid(chandef)); | |
404 | return ret; | |
405 | } | |
406 | ||
5bd5666d | 407 | static int ieee80211_config_bw(struct ieee80211_link_data *link, |
53b954ee | 408 | const struct ieee80211_ht_cap *ht_cap, |
2a333a0d | 409 | const struct ieee80211_vht_cap *vht_cap, |
30eb1dc2 JB |
410 | const struct ieee80211_ht_operation *ht_oper, |
411 | const struct ieee80211_vht_operation *vht_oper, | |
41cbb0f5 | 412 | const struct ieee80211_he_operation *he_oper, |
5dca295d | 413 | const struct ieee80211_eht_operation *eht_oper, |
1d00ce80 | 414 | const struct ieee80211_s1g_oper_ie *s1g_oper, |
30eb1dc2 | 415 | const u8 *bssid, u32 *changed) |
d5522e03 | 416 | { |
5bd5666d | 417 | struct ieee80211_sub_if_data *sdata = link->sdata; |
d5522e03 | 418 | struct ieee80211_local *local = sdata->local; |
30eb1dc2 | 419 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
5bd5666d | 420 | struct ieee80211_channel *chan = link->conf->chandef.chan; |
41cbb0f5 LC |
421 | struct ieee80211_supported_band *sband = |
422 | local->hw.wiphy->bands[chan->band]; | |
30eb1dc2 | 423 | struct cfg80211_chan_def chandef; |
9ed6bcce | 424 | u16 ht_opmode; |
ba323e29 | 425 | ieee80211_conn_flags_t flags; |
2a333a0d | 426 | u32 vht_cap_info = 0; |
30eb1dc2 | 427 | int ret; |
d5522e03 | 428 | |
30eb1dc2 | 429 | /* if HT was/is disabled, don't track any bandwidth changes */ |
5bd5666d | 430 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT || !ht_oper) |
1128958d JB |
431 | return 0; |
432 | ||
30eb1dc2 | 433 | /* don't check VHT if we associated as non-VHT station */ |
5bd5666d | 434 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) |
30eb1dc2 JB |
435 | vht_oper = NULL; |
436 | ||
41cbb0f5 | 437 | /* don't check HE if we associated as non-HE station */ |
5bd5666d | 438 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE || |
bac2fd3d | 439 | !ieee80211_get_he_iftype_cap(sband, |
5dca295d | 440 | ieee80211_vif_type_p2p(&sdata->vif))) { |
41cbb0f5 | 441 | he_oper = NULL; |
5dca295d IP |
442 | eht_oper = NULL; |
443 | } | |
444 | ||
445 | /* don't check EHT if we associated as non-EHT station */ | |
5bd5666d | 446 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT || |
5dca295d IP |
447 | !ieee80211_get_eht_iftype_cap(sband, |
448 | ieee80211_vif_type_p2p(&sdata->vif))) | |
449 | eht_oper = NULL; | |
41cbb0f5 | 450 | |
017b45bb AA |
451 | /* |
452 | * if bss configuration changed store the new one - | |
453 | * this may be applicable even if channel is identical | |
454 | */ | |
455 | ht_opmode = le16_to_cpu(ht_oper->operation_mode); | |
5bd5666d | 456 | if (link->conf->ht_operation_mode != ht_opmode) { |
017b45bb | 457 | *changed |= BSS_CHANGED_HT; |
5bd5666d | 458 | link->conf->ht_operation_mode = ht_opmode; |
017b45bb AA |
459 | } |
460 | ||
2a333a0d JB |
461 | if (vht_cap) |
462 | vht_cap_info = le32_to_cpu(vht_cap->vht_cap_info); | |
463 | ||
41cbb0f5 | 464 | /* calculate new channel (type) based on HT/VHT/HE operation IEs */ |
5bd5666d | 465 | flags = ieee80211_determine_chantype(link, sband, chan, vht_cap_info, |
5dca295d IP |
466 | ht_oper, vht_oper, |
467 | he_oper, eht_oper, | |
1d00ce80 | 468 | s1g_oper, &chandef, true); |
30eb1dc2 JB |
469 | |
470 | /* | |
471 | * Downgrade the new channel if we associated with restricted | |
472 | * capabilities. For example, if we associated as a 20 MHz STA | |
473 | * to a 40 MHz AP (due to regulatory, capabilities or config | |
474 | * reasons) then switching to a 40 MHz channel now won't do us | |
475 | * any good -- we couldn't use it with the AP. | |
476 | */ | |
5bd5666d | 477 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_80P80MHZ && |
30eb1dc2 | 478 | chandef.width == NL80211_CHAN_WIDTH_80P80) |
e6b7cde4 | 479 | flags |= ieee80211_chandef_downgrade(&chandef); |
5bd5666d | 480 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_160MHZ && |
30eb1dc2 | 481 | chandef.width == NL80211_CHAN_WIDTH_160) |
e6b7cde4 | 482 | flags |= ieee80211_chandef_downgrade(&chandef); |
5bd5666d | 483 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_40MHZ && |
30eb1dc2 | 484 | chandef.width > NL80211_CHAN_WIDTH_20) |
e6b7cde4 | 485 | flags |= ieee80211_chandef_downgrade(&chandef); |
30eb1dc2 | 486 | |
5bd5666d | 487 | if (cfg80211_chandef_identical(&chandef, &link->conf->chandef)) |
30eb1dc2 JB |
488 | return 0; |
489 | ||
5bd5666d JB |
490 | link_info(link, |
491 | "AP %pM changed bandwidth, new config is %d.%03d MHz, width %d (%d.%03d/%d MHz)\n", | |
492 | link->u.mgd.bssid, chandef.chan->center_freq, | |
493 | chandef.chan->freq_offset, chandef.width, | |
494 | chandef.center_freq1, chandef.freq1_offset, | |
495 | chandef.center_freq2); | |
496 | ||
497 | if (flags != (link->u.mgd.conn_flags & | |
ba323e29 JB |
498 | (IEEE80211_CONN_DISABLE_HT | |
499 | IEEE80211_CONN_DISABLE_VHT | | |
500 | IEEE80211_CONN_DISABLE_HE | | |
501 | IEEE80211_CONN_DISABLE_EHT | | |
502 | IEEE80211_CONN_DISABLE_40MHZ | | |
503 | IEEE80211_CONN_DISABLE_80P80MHZ | | |
504 | IEEE80211_CONN_DISABLE_160MHZ | | |
505 | IEEE80211_CONN_DISABLE_320MHZ)) || | |
30eb1dc2 JB |
506 | !cfg80211_chandef_valid(&chandef)) { |
507 | sdata_info(sdata, | |
6516ee22 | 508 | "AP %pM changed caps/bw in a way we can't support (0x%x/0x%x) - disconnect\n", |
5bd5666d | 509 | link->u.mgd.bssid, flags, ifmgd->flags); |
30eb1dc2 JB |
510 | return -EINVAL; |
511 | } | |
512 | ||
5bd5666d | 513 | ret = ieee80211_link_change_bandwidth(link, &chandef, changed); |
d6c37509 | 514 | |
30eb1dc2 JB |
515 | if (ret) { |
516 | sdata_info(sdata, | |
517 | "AP %pM changed bandwidth to incompatible one - disconnect\n", | |
5bd5666d | 518 | link->u.mgd.bssid); |
30eb1dc2 JB |
519 | return ret; |
520 | } | |
7cc44ed4 | 521 | |
30eb1dc2 | 522 | return 0; |
d5522e03 JB |
523 | } |
524 | ||
9c6bd790 JB |
525 | /* frame sending functions */ |
526 | ||
5bd5666d | 527 | static void ieee80211_add_ht_ie(struct ieee80211_link_data *link, |
9dde6423 | 528 | struct sk_buff *skb, u8 ap_ht_param, |
66e67e41 JB |
529 | struct ieee80211_supported_band *sband, |
530 | struct ieee80211_channel *channel, | |
531 | enum ieee80211_smps_mode smps) | |
532 | { | |
5bd5666d | 533 | struct ieee80211_sub_if_data *sdata = link->sdata; |
66e67e41 JB |
534 | u8 *pos; |
535 | u32 flags = channel->flags; | |
536 | u16 cap; | |
537 | struct ieee80211_sta_ht_cap ht_cap; | |
538 | ||
539 | BUILD_BUG_ON(sizeof(ht_cap) != sizeof(sband->ht_cap)); | |
540 | ||
66e67e41 JB |
541 | memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap)); |
542 | ieee80211_apply_htcap_overrides(sdata, &ht_cap); | |
543 | ||
66e67e41 JB |
544 | /* determine capability flags */ |
545 | cap = ht_cap.cap; | |
546 | ||
9dde6423 | 547 | switch (ap_ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { |
66e67e41 JB |
548 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
549 | if (flags & IEEE80211_CHAN_NO_HT40PLUS) { | |
550 | cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; | |
551 | cap &= ~IEEE80211_HT_CAP_SGI_40; | |
552 | } | |
553 | break; | |
554 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: | |
555 | if (flags & IEEE80211_CHAN_NO_HT40MINUS) { | |
556 | cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; | |
557 | cap &= ~IEEE80211_HT_CAP_SGI_40; | |
558 | } | |
559 | break; | |
560 | } | |
561 | ||
24398e39 JB |
562 | /* |
563 | * If 40 MHz was disabled associate as though we weren't | |
564 | * capable of 40 MHz -- some broken APs will never fall | |
565 | * back to trying to transmit in 20 MHz. | |
566 | */ | |
5bd5666d | 567 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_40MHZ) { |
24398e39 JB |
568 | cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
569 | cap &= ~IEEE80211_HT_CAP_SGI_40; | |
570 | } | |
571 | ||
66e67e41 JB |
572 | /* set SM PS mode properly */ |
573 | cap &= ~IEEE80211_HT_CAP_SM_PS; | |
574 | switch (smps) { | |
575 | case IEEE80211_SMPS_AUTOMATIC: | |
576 | case IEEE80211_SMPS_NUM_MODES: | |
577 | WARN_ON(1); | |
fc0561dc | 578 | fallthrough; |
66e67e41 JB |
579 | case IEEE80211_SMPS_OFF: |
580 | cap |= WLAN_HT_CAP_SM_PS_DISABLED << | |
581 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
582 | break; | |
583 | case IEEE80211_SMPS_STATIC: | |
584 | cap |= WLAN_HT_CAP_SM_PS_STATIC << | |
585 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
586 | break; | |
587 | case IEEE80211_SMPS_DYNAMIC: | |
588 | cap |= WLAN_HT_CAP_SM_PS_DYNAMIC << | |
589 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
590 | break; | |
591 | } | |
592 | ||
593 | /* reserve and fill IE */ | |
594 | pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2); | |
595 | ieee80211_ie_build_ht_cap(pos, &ht_cap, cap); | |
596 | } | |
597 | ||
322cd406 SS |
598 | /* This function determines vht capability flags for the association |
599 | * and builds the IE. | |
600 | * Note - the function may set the owner of the MU-MIMO capability | |
601 | */ | |
5bd5666d | 602 | static void ieee80211_add_vht_ie(struct ieee80211_link_data *link, |
d545daba | 603 | struct sk_buff *skb, |
b08fbbd8 JB |
604 | struct ieee80211_supported_band *sband, |
605 | struct ieee80211_vht_cap *ap_vht_cap) | |
d545daba | 606 | { |
5bd5666d | 607 | struct ieee80211_sub_if_data *sdata = link->sdata; |
322cd406 | 608 | struct ieee80211_local *local = sdata->local; |
d545daba MP |
609 | u8 *pos; |
610 | u32 cap; | |
611 | struct ieee80211_sta_vht_cap vht_cap; | |
c1cf6d4e | 612 | u32 mask, ap_bf_sts, our_bf_sts; |
d545daba MP |
613 | |
614 | BUILD_BUG_ON(sizeof(vht_cap) != sizeof(sband->vht_cap)); | |
615 | ||
616 | memcpy(&vht_cap, &sband->vht_cap, sizeof(vht_cap)); | |
dd5ecfea | 617 | ieee80211_apply_vhtcap_overrides(sdata, &vht_cap); |
d545daba MP |
618 | |
619 | /* determine capability flags */ | |
620 | cap = vht_cap.cap; | |
621 | ||
5bd5666d | 622 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_80P80MHZ) { |
575f0530 JB |
623 | u32 bw = cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; |
624 | ||
625 | cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; | |
626 | if (bw == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ || | |
627 | bw == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) | |
628 | cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; | |
f2d9d270 JB |
629 | } |
630 | ||
5bd5666d | 631 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_160MHZ) { |
f2d9d270 | 632 | cap &= ~IEEE80211_VHT_CAP_SHORT_GI_160; |
575f0530 | 633 | cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; |
f2d9d270 JB |
634 | } |
635 | ||
b08fbbd8 JB |
636 | /* |
637 | * Some APs apparently get confused if our capabilities are better | |
638 | * than theirs, so restrict what we advertise in the assoc request. | |
639 | */ | |
640 | if (!(ap_vht_cap->vht_cap_info & | |
641 | cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE))) | |
322cd406 SS |
642 | cap &= ~(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | |
643 | IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); | |
644 | else if (!(ap_vht_cap->vht_cap_info & | |
645 | cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))) | |
646 | cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; | |
647 | ||
648 | /* | |
ab4040df | 649 | * If some other vif is using the MU-MIMO capability we cannot associate |
322cd406 SS |
650 | * using MU-MIMO - this will lead to contradictions in the group-id |
651 | * mechanism. | |
652 | * Ownership is defined since association request, in order to avoid | |
653 | * simultaneous associations with MU-MIMO. | |
654 | */ | |
655 | if (cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE) { | |
656 | bool disable_mu_mimo = false; | |
657 | struct ieee80211_sub_if_data *other; | |
658 | ||
659 | list_for_each_entry_rcu(other, &local->interfaces, list) { | |
d0a9123e | 660 | if (other->vif.bss_conf.mu_mimo_owner) { |
322cd406 SS |
661 | disable_mu_mimo = true; |
662 | break; | |
663 | } | |
664 | } | |
665 | if (disable_mu_mimo) | |
666 | cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; | |
667 | else | |
5bd5666d | 668 | link->conf->mu_mimo_owner = true; |
322cd406 | 669 | } |
b08fbbd8 | 670 | |
c1cf6d4e ES |
671 | mask = IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK; |
672 | ||
673 | ap_bf_sts = le32_to_cpu(ap_vht_cap->vht_cap_info) & mask; | |
674 | our_bf_sts = cap & mask; | |
675 | ||
676 | if (ap_bf_sts < our_bf_sts) { | |
677 | cap &= ~mask; | |
678 | cap |= ap_bf_sts; | |
679 | } | |
680 | ||
d545daba | 681 | /* reserve and fill IE */ |
d4950281 | 682 | pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2); |
d545daba MP |
683 | ieee80211_ie_build_vht_cap(pos, &vht_cap, cap); |
684 | } | |
685 | ||
41cbb0f5 LC |
686 | /* This function determines HE capability flags for the association |
687 | * and builds the IE. | |
688 | */ | |
5bd5666d | 689 | static void ieee80211_add_he_ie(struct ieee80211_link_data *link, |
41cbb0f5 LC |
690 | struct sk_buff *skb, |
691 | struct ieee80211_supported_band *sband) | |
692 | { | |
5bd5666d | 693 | struct ieee80211_sub_if_data *sdata = link->sdata; |
1f2c1044 | 694 | u8 *pos, *pre_he_pos; |
41cbb0f5 | 695 | const struct ieee80211_sta_he_cap *he_cap = NULL; |
b5db1aca | 696 | struct ieee80211_chanctx_conf *chanctx_conf; |
41cbb0f5 | 697 | u8 he_cap_size; |
b5db1aca HD |
698 | bool reg_cap = false; |
699 | ||
700 | rcu_read_lock(); | |
5bd5666d | 701 | chanctx_conf = rcu_dereference(link->conf->chanctx_conf); |
b5db1aca HD |
702 | if (!WARN_ON_ONCE(!chanctx_conf)) |
703 | reg_cap = cfg80211_chandef_usable(sdata->wdev.wiphy, | |
704 | &chanctx_conf->def, | |
705 | IEEE80211_CHAN_NO_HE); | |
706 | ||
707 | rcu_read_unlock(); | |
41cbb0f5 | 708 | |
bac2fd3d JB |
709 | he_cap = ieee80211_get_he_iftype_cap(sband, |
710 | ieee80211_vif_type_p2p(&sdata->vif)); | |
1f2c1044 | 711 | if (!he_cap || !chanctx_conf || !reg_cap) |
41cbb0f5 LC |
712 | return; |
713 | ||
1f2c1044 | 714 | /* get a max size estimate */ |
41cbb0f5 LC |
715 | he_cap_size = |
716 | 2 + 1 + sizeof(he_cap->he_cap_elem) + | |
717 | ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem) + | |
718 | ieee80211_he_ppe_size(he_cap->ppe_thres[0], | |
719 | he_cap->he_cap_elem.phy_cap_info); | |
720 | pos = skb_put(skb, he_cap_size); | |
1f2c1044 | 721 | pre_he_pos = pos; |
5bd5666d | 722 | pos = ieee80211_ie_build_he_cap(link->u.mgd.conn_flags, |
1f2c1044 JB |
723 | pos, he_cap, pos + he_cap_size); |
724 | /* trim excess if any */ | |
725 | skb_trim(skb, skb->len - (pre_he_pos + he_cap_size - pos)); | |
24a2042c RM |
726 | |
727 | ieee80211_ie_build_he_6ghz_cap(sdata, skb); | |
41cbb0f5 LC |
728 | } |
729 | ||
5bd5666d | 730 | static void ieee80211_add_eht_ie(struct ieee80211_link_data *link, |
820acc81 IP |
731 | struct sk_buff *skb, |
732 | struct ieee80211_supported_band *sband) | |
733 | { | |
5bd5666d | 734 | struct ieee80211_sub_if_data *sdata = link->sdata; |
820acc81 IP |
735 | u8 *pos; |
736 | const struct ieee80211_sta_he_cap *he_cap; | |
737 | const struct ieee80211_sta_eht_cap *eht_cap; | |
738 | struct ieee80211_chanctx_conf *chanctx_conf; | |
739 | u8 eht_cap_size; | |
740 | bool reg_cap = false; | |
741 | ||
742 | rcu_read_lock(); | |
5bd5666d | 743 | chanctx_conf = rcu_dereference(link->conf->chanctx_conf); |
820acc81 IP |
744 | if (!WARN_ON_ONCE(!chanctx_conf)) |
745 | reg_cap = cfg80211_chandef_usable(sdata->wdev.wiphy, | |
746 | &chanctx_conf->def, | |
747 | IEEE80211_CHAN_NO_HE | | |
748 | IEEE80211_CHAN_NO_EHT); | |
749 | rcu_read_unlock(); | |
750 | ||
751 | he_cap = ieee80211_get_he_iftype_cap(sband, | |
752 | ieee80211_vif_type_p2p(&sdata->vif)); | |
753 | eht_cap = ieee80211_get_eht_iftype_cap(sband, | |
754 | ieee80211_vif_type_p2p(&sdata->vif)); | |
755 | ||
756 | /* | |
757 | * EHT capabilities element is only added if the HE capabilities element | |
758 | * was added so assume that 'he_cap' is valid and don't check it. | |
759 | */ | |
760 | if (WARN_ON(!he_cap || !eht_cap || !reg_cap)) | |
761 | return; | |
762 | ||
763 | eht_cap_size = | |
764 | 2 + 1 + sizeof(eht_cap->eht_cap_elem) + | |
765 | ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, | |
766 | &eht_cap->eht_cap_elem) + | |
767 | ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], | |
768 | eht_cap->eht_cap_elem.phy_cap_info); | |
769 | pos = skb_put(skb, eht_cap_size); | |
770 | ieee80211_ie_build_eht_cap(pos, he_cap, eht_cap, pos + eht_cap_size); | |
771 | } | |
772 | ||
a72c01a9 | 773 | static int ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) |
66e67e41 JB |
774 | { |
775 | struct ieee80211_local *local = sdata->local; | |
776 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
777 | struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; | |
778 | struct sk_buff *skb; | |
779 | struct ieee80211_mgmt *mgmt; | |
4d9ec73d | 780 | u8 *pos, qos_info, *ie_start; |
66e67e41 | 781 | size_t offset = 0, noffset; |
2103dec1 | 782 | int i, count, rates_len, supp_rates_len, shift; |
66e67e41 JB |
783 | u16 capab; |
784 | struct ieee80211_supported_band *sband; | |
55de908a JB |
785 | struct ieee80211_chanctx_conf *chanctx_conf; |
786 | struct ieee80211_channel *chan; | |
44f6d42c | 787 | u32 rates = 0; |
05d10957 | 788 | __le16 listen_int; |
2ff69b0e | 789 | struct element *ext_capa = NULL; |
9bd6a83e JB |
790 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); |
791 | const struct ieee80211_sband_iftype_data *iftd; | |
15fae341 | 792 | struct ieee80211_prep_tx_info info = {}; |
5bd5666d | 793 | struct ieee80211_link_data *link = &sdata->deflink; |
a72c01a9 | 794 | int ret; |
2ff69b0e JB |
795 | |
796 | /* we know it's writable, cast away the const */ | |
797 | if (assoc_data->ie_len) | |
798 | ext_capa = (void *)cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, | |
799 | assoc_data->ie, | |
800 | assoc_data->ie_len); | |
66e67e41 | 801 | |
8d61ffa5 | 802 | sdata_assert_lock(sdata); |
66e67e41 | 803 | |
55de908a | 804 | rcu_read_lock(); |
5bd5666d | 805 | chanctx_conf = rcu_dereference(link->conf->chanctx_conf); |
55de908a JB |
806 | if (WARN_ON(!chanctx_conf)) { |
807 | rcu_read_unlock(); | |
a72c01a9 | 808 | return -EINVAL; |
55de908a | 809 | } |
4bf88530 | 810 | chan = chanctx_conf->def.chan; |
55de908a JB |
811 | rcu_read_unlock(); |
812 | sband = local->hw.wiphy->bands[chan->band]; | |
2103dec1 | 813 | shift = ieee80211_vif_get_shift(&sdata->vif); |
66e67e41 JB |
814 | |
815 | if (assoc_data->supp_rates_len) { | |
816 | /* | |
817 | * Get all rates supported by the device and the AP as | |
818 | * some APs don't like getting a superset of their rates | |
819 | * in the association request (e.g. D-Link DAP 1353 in | |
820 | * b-only mode)... | |
821 | */ | |
2103dec1 SW |
822 | rates_len = ieee80211_parse_bitrates(&chanctx_conf->def, sband, |
823 | assoc_data->supp_rates, | |
824 | assoc_data->supp_rates_len, | |
825 | &rates); | |
66e67e41 JB |
826 | } else { |
827 | /* | |
828 | * In case AP not provide any supported rates information | |
829 | * before association, we send information element(s) with | |
830 | * all rates that we support. | |
831 | */ | |
2103dec1 SW |
832 | rates_len = 0; |
833 | for (i = 0; i < sband->n_bitrates; i++) { | |
2103dec1 SW |
834 | rates |= BIT(i); |
835 | rates_len++; | |
836 | } | |
66e67e41 JB |
837 | } |
838 | ||
9bd6a83e JB |
839 | iftd = ieee80211_get_sband_iftype_data(sband, iftype); |
840 | ||
66e67e41 JB |
841 | skb = alloc_skb(local->hw.extra_tx_headroom + |
842 | sizeof(*mgmt) + /* bit too much but doesn't matter */ | |
843 | 2 + assoc_data->ssid_len + /* SSID */ | |
844 | 4 + rates_len + /* (extended) rates */ | |
845 | 4 + /* power capability */ | |
846 | 2 + 2 * sband->n_channels + /* supported channels */ | |
847 | 2 + sizeof(struct ieee80211_ht_cap) + /* HT */ | |
d4950281 | 848 | 2 + sizeof(struct ieee80211_vht_cap) + /* VHT */ |
41cbb0f5 LC |
849 | 2 + 1 + sizeof(struct ieee80211_he_cap_elem) + /* HE */ |
850 | sizeof(struct ieee80211_he_mcs_nss_supp) + | |
851 | IEEE80211_HE_PPE_THRES_MAX_LEN + | |
24a2042c | 852 | 2 + 1 + sizeof(struct ieee80211_he_6ghz_capa) + |
66e67e41 | 853 | assoc_data->ie_len + /* extra IEs */ |
39404fee | 854 | (assoc_data->fils_kek_len ? 16 /* AES-SIV */ : 0) + |
9bd6a83e JB |
855 | 9 + /* WMM */ |
856 | (iftd ? iftd->vendor_elems.len : 0), | |
66e67e41 JB |
857 | GFP_KERNEL); |
858 | if (!skb) | |
a72c01a9 | 859 | return -ENOMEM; |
66e67e41 JB |
860 | |
861 | skb_reserve(skb, local->hw.extra_tx_headroom); | |
862 | ||
863 | capab = WLAN_CAPABILITY_ESS; | |
864 | ||
57fbcce3 | 865 | if (sband->band == NL80211_BAND_2GHZ) { |
ea1b2b45 JB |
866 | capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; |
867 | capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; | |
66e67e41 JB |
868 | } |
869 | ||
870 | if (assoc_data->capability & WLAN_CAPABILITY_PRIVACY) | |
871 | capab |= WLAN_CAPABILITY_PRIVACY; | |
872 | ||
873 | if ((assoc_data->capability & WLAN_CAPABILITY_SPECTRUM_MGMT) && | |
30686bf7 | 874 | ieee80211_hw_check(&local->hw, SPECTRUM_MGMT)) |
66e67e41 JB |
875 | capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; |
876 | ||
cd2f5dd7 AK |
877 | if (ifmgd->flags & IEEE80211_STA_ENABLE_RRM) |
878 | capab |= WLAN_CAPABILITY_RADIO_MEASURE; | |
879 | ||
b080db58 | 880 | mgmt = skb_put_zero(skb, 24); |
66e67e41 JB |
881 | memcpy(mgmt->da, assoc_data->bss->bssid, ETH_ALEN); |
882 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); | |
883 | memcpy(mgmt->bssid, assoc_data->bss->bssid, ETH_ALEN); | |
884 | ||
05d10957 TP |
885 | listen_int = cpu_to_le16(sband->band == NL80211_BAND_S1GHZ ? |
886 | ieee80211_encode_usf(local->hw.conf.listen_interval) : | |
887 | local->hw.conf.listen_interval); | |
66e67e41 JB |
888 | if (!is_zero_ether_addr(assoc_data->prev_bssid)) { |
889 | skb_put(skb, 10); | |
890 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
891 | IEEE80211_STYPE_REASSOC_REQ); | |
892 | mgmt->u.reassoc_req.capab_info = cpu_to_le16(capab); | |
05d10957 | 893 | mgmt->u.reassoc_req.listen_interval = listen_int; |
66e67e41 JB |
894 | memcpy(mgmt->u.reassoc_req.current_ap, assoc_data->prev_bssid, |
895 | ETH_ALEN); | |
15fae341 | 896 | info.subtype = IEEE80211_STYPE_REASSOC_REQ; |
66e67e41 JB |
897 | } else { |
898 | skb_put(skb, 4); | |
899 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
900 | IEEE80211_STYPE_ASSOC_REQ); | |
901 | mgmt->u.assoc_req.capab_info = cpu_to_le16(capab); | |
05d10957 | 902 | mgmt->u.assoc_req.listen_interval = listen_int; |
15fae341 | 903 | info.subtype = IEEE80211_STYPE_ASSOC_REQ; |
66e67e41 JB |
904 | } |
905 | ||
906 | /* SSID */ | |
907 | pos = skb_put(skb, 2 + assoc_data->ssid_len); | |
4d9ec73d | 908 | ie_start = pos; |
66e67e41 JB |
909 | *pos++ = WLAN_EID_SSID; |
910 | *pos++ = assoc_data->ssid_len; | |
911 | memcpy(pos, assoc_data->ssid, assoc_data->ssid_len); | |
912 | ||
1d00ce80 TP |
913 | if (sband->band == NL80211_BAND_S1GHZ) |
914 | goto skip_rates; | |
915 | ||
66e67e41 JB |
916 | /* add all rates which were marked to be used above */ |
917 | supp_rates_len = rates_len; | |
918 | if (supp_rates_len > 8) | |
919 | supp_rates_len = 8; | |
920 | ||
921 | pos = skb_put(skb, supp_rates_len + 2); | |
922 | *pos++ = WLAN_EID_SUPP_RATES; | |
923 | *pos++ = supp_rates_len; | |
924 | ||
925 | count = 0; | |
926 | for (i = 0; i < sband->n_bitrates; i++) { | |
927 | if (BIT(i) & rates) { | |
2103dec1 SW |
928 | int rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, |
929 | 5 * (1 << shift)); | |
930 | *pos++ = (u8) rate; | |
66e67e41 JB |
931 | if (++count == 8) |
932 | break; | |
933 | } | |
934 | } | |
935 | ||
936 | if (rates_len > count) { | |
937 | pos = skb_put(skb, rates_len - count + 2); | |
938 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
939 | *pos++ = rates_len - count; | |
940 | ||
941 | for (i++; i < sband->n_bitrates; i++) { | |
942 | if (BIT(i) & rates) { | |
2103dec1 SW |
943 | int rate; |
944 | rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, | |
945 | 5 * (1 << shift)); | |
946 | *pos++ = (u8) rate; | |
66e67e41 JB |
947 | } |
948 | } | |
949 | } | |
950 | ||
1d00ce80 | 951 | skip_rates: |
cd2f5dd7 AK |
952 | if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT || |
953 | capab & WLAN_CAPABILITY_RADIO_MEASURE) { | |
66e67e41 JB |
954 | pos = skb_put(skb, 4); |
955 | *pos++ = WLAN_EID_PWR_CAPABILITY; | |
956 | *pos++ = 2; | |
957 | *pos++ = 0; /* min tx power */ | |
0430c883 SW |
958 | /* max tx power */ |
959 | *pos++ = ieee80211_chandef_max_power(&chanctx_conf->def); | |
cd2f5dd7 | 960 | } |
66e67e41 | 961 | |
2ff69b0e JB |
962 | /* |
963 | * Per spec, we shouldn't include the list of channels if we advertise | |
964 | * support for extended channel switching, but we've always done that; | |
965 | * (for now?) apply this restriction only on the (new) 6 GHz band. | |
966 | */ | |
967 | if (capab & WLAN_CAPABILITY_SPECTRUM_MGMT && | |
968 | (sband->band != NL80211_BAND_6GHZ || | |
969 | !ext_capa || ext_capa->datalen < 1 || | |
970 | !(ext_capa->data[0] & WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING))) { | |
66e67e41 JB |
971 | /* TODO: get this in reg domain format */ |
972 | pos = skb_put(skb, 2 * sband->n_channels + 2); | |
973 | *pos++ = WLAN_EID_SUPPORTED_CHANNELS; | |
974 | *pos++ = 2 * sband->n_channels; | |
975 | for (i = 0; i < sband->n_channels; i++) { | |
976 | *pos++ = ieee80211_frequency_to_channel( | |
977 | sband->channels[i].center_freq); | |
978 | *pos++ = 1; /* one channel in the subband*/ | |
979 | } | |
980 | } | |
981 | ||
caf56338 SS |
982 | /* Set MBSSID support for HE AP if needed */ |
983 | if (ieee80211_hw_check(&local->hw, SUPPORTS_ONLY_HE_MULTI_BSSID) && | |
5bd5666d | 984 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && assoc_data->ie_len && |
2ff69b0e JB |
985 | ext_capa && ext_capa->datalen >= 3) |
986 | ext_capa->data[2] |= WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT; | |
caf56338 | 987 | |
66e67e41 | 988 | /* if present, add any custom IEs that go before HT */ |
b3f51e94 | 989 | if (assoc_data->ie_len) { |
66e67e41 JB |
990 | static const u8 before_ht[] = { |
991 | WLAN_EID_SSID, | |
992 | WLAN_EID_SUPP_RATES, | |
993 | WLAN_EID_EXT_SUPP_RATES, | |
994 | WLAN_EID_PWR_CAPABILITY, | |
995 | WLAN_EID_SUPPORTED_CHANNELS, | |
996 | WLAN_EID_RSN, | |
997 | WLAN_EID_QOS_CAPA, | |
998 | WLAN_EID_RRM_ENABLED_CAPABILITIES, | |
999 | WLAN_EID_MOBILITY_DOMAIN, | |
8ed28747 JB |
1000 | WLAN_EID_FAST_BSS_TRANSITION, /* reassoc only */ |
1001 | WLAN_EID_RIC_DATA, /* reassoc only */ | |
66e67e41 JB |
1002 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, |
1003 | }; | |
8ed28747 JB |
1004 | static const u8 after_ric[] = { |
1005 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, | |
1006 | WLAN_EID_HT_CAPABILITY, | |
1007 | WLAN_EID_BSS_COEX_2040, | |
a7f26d80 | 1008 | /* luckily this is almost always there */ |
8ed28747 JB |
1009 | WLAN_EID_EXT_CAPABILITY, |
1010 | WLAN_EID_QOS_TRAFFIC_CAPA, | |
1011 | WLAN_EID_TIM_BCAST_REQ, | |
1012 | WLAN_EID_INTERWORKING, | |
a7f26d80 | 1013 | /* 60 GHz (Multi-band, DMG, MMS) can't happen */ |
8ed28747 JB |
1014 | WLAN_EID_VHT_CAPABILITY, |
1015 | WLAN_EID_OPMODE_NOTIF, | |
1016 | }; | |
1017 | ||
1018 | noffset = ieee80211_ie_split_ric(assoc_data->ie, | |
1019 | assoc_data->ie_len, | |
1020 | before_ht, | |
1021 | ARRAY_SIZE(before_ht), | |
1022 | after_ric, | |
1023 | ARRAY_SIZE(after_ric), | |
1024 | offset); | |
b952f4df | 1025 | skb_put_data(skb, assoc_data->ie + offset, noffset - offset); |
66e67e41 JB |
1026 | offset = noffset; |
1027 | } | |
1028 | ||
5bd5666d JB |
1029 | if (WARN_ON_ONCE((link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT) && |
1030 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT))) | |
1031 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
f2d9d270 | 1032 | |
57fa5e85 | 1033 | if (sband->band != NL80211_BAND_6GHZ && |
5bd5666d JB |
1034 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) |
1035 | ieee80211_add_ht_ie(link, skb, assoc_data->ap_ht_param, | |
1036 | sband, chan, link->smps_mode); | |
66e67e41 | 1037 | |
3de3802c JB |
1038 | /* if present, add any custom IEs that go before VHT */ |
1039 | if (assoc_data->ie_len) { | |
1040 | static const u8 before_vht[] = { | |
a7f26d80 JB |
1041 | /* |
1042 | * no need to list the ones split off before HT | |
1043 | * or generated here | |
1044 | */ | |
3de3802c JB |
1045 | WLAN_EID_BSS_COEX_2040, |
1046 | WLAN_EID_EXT_CAPABILITY, | |
1047 | WLAN_EID_QOS_TRAFFIC_CAPA, | |
1048 | WLAN_EID_TIM_BCAST_REQ, | |
1049 | WLAN_EID_INTERWORKING, | |
a7f26d80 | 1050 | /* 60 GHz (Multi-band, DMG, MMS) can't happen */ |
3de3802c | 1051 | }; |
8ed28747 JB |
1052 | |
1053 | /* RIC already taken above, so no need to handle here anymore */ | |
3de3802c JB |
1054 | noffset = ieee80211_ie_split(assoc_data->ie, assoc_data->ie_len, |
1055 | before_vht, ARRAY_SIZE(before_vht), | |
1056 | offset); | |
b952f4df | 1057 | skb_put_data(skb, assoc_data->ie + offset, noffset - offset); |
3de3802c JB |
1058 | offset = noffset; |
1059 | } | |
1060 | ||
41cbb0f5 LC |
1061 | /* if present, add any custom IEs that go before HE */ |
1062 | if (assoc_data->ie_len) { | |
1063 | static const u8 before_he[] = { | |
1064 | /* | |
1065 | * no need to list the ones split off before VHT | |
1066 | * or generated here | |
1067 | */ | |
1068 | WLAN_EID_OPMODE_NOTIF, | |
1069 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE, | |
1070 | /* 11ai elements */ | |
1071 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_SESSION, | |
1072 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_PUBLIC_KEY, | |
1073 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_KEY_CONFIRM, | |
1074 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_HLP_CONTAINER, | |
1075 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN, | |
1076 | /* TODO: add 11ah/11aj/11ak elements */ | |
1077 | }; | |
1078 | ||
1079 | /* RIC already taken above, so no need to handle here anymore */ | |
1080 | noffset = ieee80211_ie_split(assoc_data->ie, assoc_data->ie_len, | |
1081 | before_he, ARRAY_SIZE(before_he), | |
1082 | offset); | |
1083 | pos = skb_put(skb, noffset - offset); | |
1084 | memcpy(pos, assoc_data->ie + offset, noffset - offset); | |
1085 | offset = noffset; | |
1086 | } | |
1087 | ||
57fa5e85 | 1088 | if (sband->band != NL80211_BAND_6GHZ && |
5bd5666d JB |
1089 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) |
1090 | ieee80211_add_vht_ie(link, skb, sband, | |
b08fbbd8 | 1091 | &assoc_data->ap_vht_cap); |
d545daba | 1092 | |
dc7eb0f2 | 1093 | /* |
5dca295d | 1094 | * If AP doesn't support HT, mark HE and EHT as disabled. |
dc7eb0f2 ST |
1095 | * If on the 5GHz band, make sure it supports VHT. |
1096 | */ | |
5bd5666d | 1097 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT || |
dc7eb0f2 | 1098 | (sband->band == NL80211_BAND_5GHZ && |
5bd5666d JB |
1099 | link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) |
1100 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HE | | |
ba323e29 | 1101 | IEEE80211_CONN_DISABLE_EHT; |
dc7eb0f2 | 1102 | |
5bd5666d JB |
1103 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE)) { |
1104 | ieee80211_add_he_ie(link, skb, sband); | |
41cbb0f5 | 1105 | |
5bd5666d JB |
1106 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT)) |
1107 | ieee80211_add_eht_ie(link, skb, sband); | |
820acc81 IP |
1108 | } |
1109 | ||
41cbb0f5 | 1110 | /* if present, add any custom non-vendor IEs that go after HE */ |
b3f51e94 | 1111 | if (assoc_data->ie_len) { |
66e67e41 JB |
1112 | noffset = ieee80211_ie_split_vendor(assoc_data->ie, |
1113 | assoc_data->ie_len, | |
1114 | offset); | |
b952f4df | 1115 | skb_put_data(skb, assoc_data->ie + offset, noffset - offset); |
66e67e41 JB |
1116 | offset = noffset; |
1117 | } | |
1118 | ||
76f0303d JB |
1119 | if (assoc_data->wmm) { |
1120 | if (assoc_data->uapsd) { | |
dc41e4d4 EP |
1121 | qos_info = ifmgd->uapsd_queues; |
1122 | qos_info |= (ifmgd->uapsd_max_sp_len << | |
66e67e41 JB |
1123 | IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT); |
1124 | } else { | |
1125 | qos_info = 0; | |
1126 | } | |
1127 | ||
40b861a0 | 1128 | pos = ieee80211_add_wmm_info_ie(skb_put(skb, 9), qos_info); |
66e67e41 JB |
1129 | } |
1130 | ||
1d00ce80 TP |
1131 | if (sband->band == NL80211_BAND_S1GHZ) { |
1132 | ieee80211_add_aid_request_ie(sdata, skb); | |
7957c6c8 | 1133 | ieee80211_add_s1g_capab_ie(sdata, &sband->s1g_cap, skb); |
1d00ce80 | 1134 | } |
7957c6c8 | 1135 | |
9bd6a83e JB |
1136 | if (iftd && iftd->vendor_elems.data && iftd->vendor_elems.len) |
1137 | skb_put_data(skb, iftd->vendor_elems.data, iftd->vendor_elems.len); | |
1138 | ||
66e67e41 | 1139 | /* add any remaining custom (i.e. vendor specific here) IEs */ |
b3f51e94 | 1140 | if (assoc_data->ie_len) { |
66e67e41 | 1141 | noffset = assoc_data->ie_len; |
b952f4df | 1142 | skb_put_data(skb, assoc_data->ie + offset, noffset - offset); |
66e67e41 JB |
1143 | } |
1144 | ||
a72c01a9 JJ |
1145 | if (assoc_data->fils_kek_len) { |
1146 | ret = fils_encrypt_assoc_req(skb, assoc_data); | |
1147 | if (ret < 0) { | |
1148 | dev_kfree_skb(skb); | |
1149 | return ret; | |
1150 | } | |
39404fee JM |
1151 | } |
1152 | ||
4d9ec73d JM |
1153 | pos = skb_tail_pointer(skb); |
1154 | kfree(ifmgd->assoc_req_ies); | |
1155 | ifmgd->assoc_req_ies = kmemdup(ie_start, pos - ie_start, GFP_ATOMIC); | |
a72c01a9 JJ |
1156 | if (!ifmgd->assoc_req_ies) { |
1157 | dev_kfree_skb(skb); | |
1158 | return -ENOMEM; | |
1159 | } | |
1160 | ||
4d9ec73d JM |
1161 | ifmgd->assoc_req_ies_len = pos - ie_start; |
1162 | ||
15fae341 | 1163 | drv_mgd_prepare_tx(local, sdata, &info); |
a1845fc7 | 1164 | |
66e67e41 | 1165 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; |
30686bf7 | 1166 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
1672c0e3 JB |
1167 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | |
1168 | IEEE80211_TX_INTFL_MLME_CONN_TX; | |
66e67e41 | 1169 | ieee80211_tx_skb(sdata, skb); |
a72c01a9 JJ |
1170 | |
1171 | return 0; | |
66e67e41 JB |
1172 | } |
1173 | ||
572e0012 KV |
1174 | void ieee80211_send_pspoll(struct ieee80211_local *local, |
1175 | struct ieee80211_sub_if_data *sdata) | |
1176 | { | |
572e0012 KV |
1177 | struct ieee80211_pspoll *pspoll; |
1178 | struct sk_buff *skb; | |
572e0012 | 1179 | |
d8cd189e KV |
1180 | skb = ieee80211_pspoll_get(&local->hw, &sdata->vif); |
1181 | if (!skb) | |
572e0012 | 1182 | return; |
572e0012 | 1183 | |
d8cd189e KV |
1184 | pspoll = (struct ieee80211_pspoll *) skb->data; |
1185 | pspoll->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
572e0012 | 1186 | |
62ae67be JB |
1187 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; |
1188 | ieee80211_tx_skb(sdata, skb); | |
572e0012 KV |
1189 | } |
1190 | ||
965bedad JB |
1191 | void ieee80211_send_nullfunc(struct ieee80211_local *local, |
1192 | struct ieee80211_sub_if_data *sdata, | |
076cdcb1 | 1193 | bool powersave) |
965bedad JB |
1194 | { |
1195 | struct sk_buff *skb; | |
d8cd189e | 1196 | struct ieee80211_hdr_3addr *nullfunc; |
b6f35301 | 1197 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
965bedad | 1198 | |
7c181f4f BCD |
1199 | skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif, |
1200 | !ieee80211_hw_check(&local->hw, DOESNT_SUPPORT_QOS_NDP)); | |
d8cd189e | 1201 | if (!skb) |
965bedad | 1202 | return; |
965bedad | 1203 | |
d8cd189e | 1204 | nullfunc = (struct ieee80211_hdr_3addr *) skb->data; |
965bedad | 1205 | if (powersave) |
d8cd189e | 1206 | nullfunc->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); |
965bedad | 1207 | |
6c17b77b SF |
1208 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | |
1209 | IEEE80211_TX_INTFL_OFFCHAN_TX_OK; | |
ff40b425 | 1210 | |
30686bf7 | 1211 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
ff40b425 PF |
1212 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; |
1213 | ||
392b9ffb | 1214 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) |
b6f35301 RM |
1215 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE; |
1216 | ||
62ae67be | 1217 | ieee80211_tx_skb(sdata, skb); |
965bedad JB |
1218 | } |
1219 | ||
a5d3cbdb FF |
1220 | void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, |
1221 | struct ieee80211_sub_if_data *sdata) | |
d524215f FF |
1222 | { |
1223 | struct sk_buff *skb; | |
1224 | struct ieee80211_hdr *nullfunc; | |
1225 | __le16 fc; | |
1226 | ||
1227 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
1228 | return; | |
1229 | ||
1230 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30); | |
d15b8459 | 1231 | if (!skb) |
d524215f | 1232 | return; |
d15b8459 | 1233 | |
d524215f FF |
1234 | skb_reserve(skb, local->hw.extra_tx_headroom); |
1235 | ||
b080db58 | 1236 | nullfunc = skb_put_zero(skb, 30); |
d524215f FF |
1237 | fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC | |
1238 | IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS); | |
1239 | nullfunc->frame_control = fc; | |
bfd8403a | 1240 | memcpy(nullfunc->addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN); |
d524215f | 1241 | memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); |
bfd8403a | 1242 | memcpy(nullfunc->addr3, sdata->deflink.u.mgd.bssid, ETH_ALEN); |
d524215f FF |
1243 | memcpy(nullfunc->addr4, sdata->vif.addr, ETH_ALEN); |
1244 | ||
1245 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; | |
bf326cf5 | 1246 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE; |
d524215f FF |
1247 | ieee80211_tx_skb(sdata, skb); |
1248 | } | |
1249 | ||
cc32abd4 JB |
1250 | /* spectrum management related things */ |
1251 | static void ieee80211_chswitch_work(struct work_struct *work) | |
1252 | { | |
5bd5666d JB |
1253 | struct ieee80211_link_data *link = |
1254 | container_of(work, struct ieee80211_link_data, u.mgd.chswitch_work); | |
1255 | struct ieee80211_sub_if_data *sdata = link->sdata; | |
675a0b04 | 1256 | struct ieee80211_local *local = sdata->local; |
cc32abd4 | 1257 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
7578d575 | 1258 | int ret; |
cc32abd4 | 1259 | |
9607e6b6 | 1260 | if (!ieee80211_sdata_running(sdata)) |
cc32abd4 JB |
1261 | return; |
1262 | ||
8d61ffa5 | 1263 | sdata_lock(sdata); |
4c3ebc56 MK |
1264 | mutex_lock(&local->mtx); |
1265 | mutex_lock(&local->chanctx_mtx); | |
1266 | ||
77fdaa12 JB |
1267 | if (!ifmgd->associated) |
1268 | goto out; | |
cc32abd4 | 1269 | |
5bd5666d | 1270 | if (!link->conf->csa_active) |
4c3ebc56 MK |
1271 | goto out; |
1272 | ||
1273 | /* | |
1274 | * using reservation isn't immediate as it may be deferred until later | |
1275 | * with multi-vif. once reservation is complete it will re-schedule the | |
1276 | * work with no reserved_chanctx so verify chandef to check if it | |
1277 | * completed successfully | |
1278 | */ | |
1279 | ||
5bd5666d | 1280 | if (link->reserved_chanctx) { |
4c3ebc56 MK |
1281 | /* |
1282 | * with multi-vif csa driver may call ieee80211_csa_finish() | |
1283 | * many times while waiting for other interfaces to use their | |
1284 | * reservations | |
1285 | */ | |
5bd5666d | 1286 | if (link->reserved_ready) |
4c3ebc56 MK |
1287 | goto out; |
1288 | ||
5bd5666d | 1289 | ret = ieee80211_link_use_reserved_context(link); |
4c3ebc56 MK |
1290 | if (ret) { |
1291 | sdata_info(sdata, | |
1292 | "failed to use reserved channel context, disconnecting (err=%d)\n", | |
1293 | ret); | |
1294 | ieee80211_queue_work(&sdata->local->hw, | |
1295 | &ifmgd->csa_connection_drop_work); | |
1296 | goto out; | |
1297 | } | |
1298 | ||
1299 | goto out; | |
1300 | } | |
1301 | ||
5bd5666d JB |
1302 | if (!cfg80211_chandef_identical(&link->conf->chandef, |
1303 | &link->csa_chandef)) { | |
7578d575 | 1304 | sdata_info(sdata, |
4c3ebc56 | 1305 | "failed to finalize channel switch, disconnecting\n"); |
7578d575 AN |
1306 | ieee80211_queue_work(&sdata->local->hw, |
1307 | &ifmgd->csa_connection_drop_work); | |
1308 | goto out; | |
1309 | } | |
675a0b04 | 1310 | |
5bd5666d | 1311 | link->u.mgd.csa_waiting_bcn = true; |
0c21e632 LC |
1312 | |
1313 | ieee80211_sta_reset_beacon_monitor(sdata); | |
1314 | ieee80211_sta_reset_conn_monitor(sdata); | |
1315 | ||
1316 | out: | |
1317 | mutex_unlock(&local->chanctx_mtx); | |
1318 | mutex_unlock(&local->mtx); | |
1319 | sdata_unlock(sdata); | |
1320 | } | |
1321 | ||
5bd5666d | 1322 | static void ieee80211_chswitch_post_beacon(struct ieee80211_link_data *link) |
0c21e632 | 1323 | { |
5bd5666d | 1324 | struct ieee80211_sub_if_data *sdata = link->sdata; |
0c21e632 LC |
1325 | struct ieee80211_local *local = sdata->local; |
1326 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
1327 | int ret; | |
1328 | ||
1329 | sdata_assert_lock(sdata); | |
1330 | ||
5bd5666d | 1331 | WARN_ON(!link->conf->csa_active); |
4c3ebc56 | 1332 | |
5bd5666d | 1333 | if (link->csa_block_tx) { |
a46992b4 LC |
1334 | ieee80211_wake_vif_queues(local, sdata, |
1335 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
5bd5666d | 1336 | link->csa_block_tx = false; |
a46992b4 | 1337 | } |
7578d575 | 1338 | |
5bd5666d JB |
1339 | link->conf->csa_active = false; |
1340 | link->u.mgd.csa_waiting_bcn = false; | |
d6843d1e EG |
1341 | /* |
1342 | * If the CSA IE is still present on the beacon after the switch, | |
1343 | * we need to consider it as a new CSA (possibly to self). | |
1344 | */ | |
5bd5666d | 1345 | link->u.mgd.beacon_crc_valid = false; |
0c21e632 | 1346 | |
f1d65583 LC |
1347 | ret = drv_post_channel_switch(sdata); |
1348 | if (ret) { | |
1349 | sdata_info(sdata, | |
1350 | "driver post channel switch failed, disconnecting\n"); | |
1351 | ieee80211_queue_work(&local->hw, | |
1352 | &ifmgd->csa_connection_drop_work); | |
0c21e632 | 1353 | return; |
f1d65583 | 1354 | } |
688b1ecf | 1355 | |
5bd5666d | 1356 | cfg80211_ch_switch_notify(sdata->dev, &link->reserved_chandef, 0); |
cc32abd4 JB |
1357 | } |
1358 | ||
5ce6e438 JB |
1359 | void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success) |
1360 | { | |
55de908a JB |
1361 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
1362 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
5ce6e438 | 1363 | |
5bd5666d JB |
1364 | if (WARN_ON(sdata->vif.valid_links)) |
1365 | success = false; | |
1366 | ||
5ce6e438 JB |
1367 | trace_api_chswitch_done(sdata, success); |
1368 | if (!success) { | |
882a7c69 JB |
1369 | sdata_info(sdata, |
1370 | "driver channel switch failed, disconnecting\n"); | |
1371 | ieee80211_queue_work(&sdata->local->hw, | |
1372 | &ifmgd->csa_connection_drop_work); | |
1373 | } else { | |
5bd5666d JB |
1374 | ieee80211_queue_work(&sdata->local->hw, |
1375 | &sdata->deflink.u.mgd.chswitch_work); | |
5ce6e438 | 1376 | } |
5ce6e438 JB |
1377 | } |
1378 | EXPORT_SYMBOL(ieee80211_chswitch_done); | |
1379 | ||
34f11cd3 | 1380 | static void ieee80211_chswitch_timer(struct timer_list *t) |
cc32abd4 | 1381 | { |
5bd5666d JB |
1382 | struct ieee80211_link_data *link = |
1383 | from_timer(link, t, u.mgd.chswitch_timer); | |
5bb644a0 | 1384 | |
5bd5666d JB |
1385 | ieee80211_queue_work(&link->sdata->local->hw, |
1386 | &link->u.mgd.chswitch_work); | |
cc32abd4 JB |
1387 | } |
1388 | ||
b9cc81d8 | 1389 | static void |
5bd5666d | 1390 | ieee80211_sta_abort_chanswitch(struct ieee80211_link_data *link) |
b9cc81d8 | 1391 | { |
5bd5666d | 1392 | struct ieee80211_sub_if_data *sdata = link->sdata; |
b9cc81d8 SS |
1393 | struct ieee80211_local *local = sdata->local; |
1394 | ||
1395 | if (!local->ops->abort_channel_switch) | |
1396 | return; | |
1397 | ||
1398 | mutex_lock(&local->mtx); | |
1399 | ||
1400 | mutex_lock(&local->chanctx_mtx); | |
5bd5666d | 1401 | ieee80211_link_unreserve_chanctx(link); |
b9cc81d8 SS |
1402 | mutex_unlock(&local->chanctx_mtx); |
1403 | ||
5bd5666d | 1404 | if (link->csa_block_tx) |
b9cc81d8 SS |
1405 | ieee80211_wake_vif_queues(local, sdata, |
1406 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
1407 | ||
5bd5666d JB |
1408 | link->csa_block_tx = false; |
1409 | link->conf->csa_active = false; | |
b9cc81d8 SS |
1410 | |
1411 | mutex_unlock(&local->mtx); | |
1412 | ||
1413 | drv_abort_channel_switch(sdata); | |
1414 | } | |
1415 | ||
37799e52 | 1416 | static void |
5bd5666d | 1417 | ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, |
2ba45384 LC |
1418 | u64 timestamp, u32 device_timestamp, |
1419 | struct ieee802_11_elems *elems, | |
04a161f4 | 1420 | bool beacon) |
cc32abd4 | 1421 | { |
5bd5666d | 1422 | struct ieee80211_sub_if_data *sdata = link->sdata; |
b4f286a1 | 1423 | struct ieee80211_local *local = sdata->local; |
cc32abd4 | 1424 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
5bd5666d | 1425 | struct cfg80211_bss *cbss = link->u.mgd.bss; |
4c3ebc56 | 1426 | struct ieee80211_chanctx_conf *conf; |
55de908a | 1427 | struct ieee80211_chanctx *chanctx; |
57fbcce3 | 1428 | enum nl80211_band current_band; |
c0f17eb9 | 1429 | struct ieee80211_csa_ie csa_ie; |
6d027bcc | 1430 | struct ieee80211_channel_switch ch_switch; |
2a333a0d | 1431 | struct ieee80211_bss *bss; |
e6b7cde4 | 1432 | int res; |
cc32abd4 | 1433 | |
8d61ffa5 | 1434 | sdata_assert_lock(sdata); |
77fdaa12 | 1435 | |
37799e52 | 1436 | if (!cbss) |
cc32abd4 JB |
1437 | return; |
1438 | ||
b4f286a1 | 1439 | if (local->scanning) |
cc32abd4 JB |
1440 | return; |
1441 | ||
e6b7cde4 | 1442 | current_band = cbss->channel->band; |
2a333a0d | 1443 | bss = (void *)cbss->priv; |
84469a45 | 1444 | res = ieee80211_parse_ch_switch_ie(sdata, elems, current_band, |
2a333a0d | 1445 | bss->vht_cap_info, |
5bd5666d JB |
1446 | link->u.mgd.conn_flags, |
1447 | link->u.mgd.bssid, &csa_ie); | |
fafd2bce SS |
1448 | |
1449 | if (!res) { | |
1450 | ch_switch.timestamp = timestamp; | |
1451 | ch_switch.device_timestamp = device_timestamp; | |
2bf973ff | 1452 | ch_switch.block_tx = csa_ie.mode; |
fafd2bce SS |
1453 | ch_switch.chandef = csa_ie.chandef; |
1454 | ch_switch.count = csa_ie.count; | |
1455 | ch_switch.delay = csa_ie.max_switch_time; | |
1456 | } | |
1457 | ||
253907ab EG |
1458 | if (res < 0) |
1459 | goto lock_and_drop_connection; | |
b9cc81d8 | 1460 | |
5bd5666d JB |
1461 | if (beacon && link->conf->csa_active && |
1462 | !link->u.mgd.csa_waiting_bcn) { | |
fafd2bce | 1463 | if (res) |
5bd5666d | 1464 | ieee80211_sta_abort_chanswitch(link); |
fafd2bce SS |
1465 | else |
1466 | drv_channel_switch_rx_beacon(sdata, &ch_switch); | |
b9cc81d8 | 1467 | return; |
5bd5666d | 1468 | } else if (link->conf->csa_active || res) { |
b9cc81d8 SS |
1469 | /* disregard subsequent announcements if already processing */ |
1470 | return; | |
1471 | } | |
cd64f2a9 | 1472 | |
5bd5666d | 1473 | if (link->conf->chandef.chan->band != |
3660944a JB |
1474 | csa_ie.chandef.chan->band) { |
1475 | sdata_info(sdata, | |
1476 | "AP %pM switches to different band (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n", | |
5bd5666d | 1477 | link->u.mgd.bssid, |
3660944a JB |
1478 | csa_ie.chandef.chan->center_freq, |
1479 | csa_ie.chandef.width, csa_ie.chandef.center_freq1, | |
1480 | csa_ie.chandef.center_freq2); | |
1481 | goto lock_and_drop_connection; | |
1482 | } | |
1483 | ||
c0f17eb9 | 1484 | if (!cfg80211_chandef_usable(local->hw.wiphy, &csa_ie.chandef, |
85220d71 JB |
1485 | IEEE80211_CHAN_DISABLED)) { |
1486 | sdata_info(sdata, | |
b6011960 TP |
1487 | "AP %pM switches to unsupported channel " |
1488 | "(%d.%03d MHz, width:%d, CF1/2: %d.%03d/%d MHz), " | |
1489 | "disconnecting\n", | |
5bd5666d | 1490 | link->u.mgd.bssid, |
c0f17eb9 | 1491 | csa_ie.chandef.chan->center_freq, |
b6011960 | 1492 | csa_ie.chandef.chan->freq_offset, |
c0f17eb9 | 1493 | csa_ie.chandef.width, csa_ie.chandef.center_freq1, |
b6011960 | 1494 | csa_ie.chandef.freq1_offset, |
c0f17eb9 | 1495 | csa_ie.chandef.center_freq2); |
3660944a | 1496 | goto lock_and_drop_connection; |
85220d71 JB |
1497 | } |
1498 | ||
f84eaa10 | 1499 | if (cfg80211_chandef_identical(&csa_ie.chandef, |
5bd5666d | 1500 | &link->conf->chandef) && |
9792875c | 1501 | (!csa_ie.mode || !beacon)) { |
5bd5666d | 1502 | if (link->u.mgd.csa_ignored_same_chan) |
f84eaa10 JB |
1503 | return; |
1504 | sdata_info(sdata, | |
1505 | "AP %pM tries to chanswitch to same channel, ignore\n", | |
5bd5666d JB |
1506 | link->u.mgd.bssid); |
1507 | link->u.mgd.csa_ignored_same_chan = true; | |
f84eaa10 JB |
1508 | return; |
1509 | } | |
1510 | ||
c5a71688 AN |
1511 | /* |
1512 | * Drop all TDLS peers - either we disconnect or move to a different | |
1513 | * channel from this point on. There's no telling what our peer will do. | |
1514 | * The TDLS WIDER_BW scenario is also problematic, as peers might now | |
1515 | * have an incompatible wider chandef. | |
1516 | */ | |
1517 | ieee80211_teardown_tdls_peers(sdata); | |
1518 | ||
4c3ebc56 | 1519 | mutex_lock(&local->mtx); |
7578d575 | 1520 | mutex_lock(&local->chanctx_mtx); |
5bd5666d | 1521 | conf = rcu_dereference_protected(link->conf->chanctx_conf, |
4c3ebc56 MK |
1522 | lockdep_is_held(&local->chanctx_mtx)); |
1523 | if (!conf) { | |
1524 | sdata_info(sdata, | |
1525 | "no channel context assigned to vif?, disconnecting\n"); | |
f3b0bbb3 | 1526 | goto drop_connection; |
4c3ebc56 MK |
1527 | } |
1528 | ||
1529 | chanctx = container_of(conf, struct ieee80211_chanctx, conf); | |
1530 | ||
0f791eb4 | 1531 | if (local->use_chanctx && |
30686bf7 | 1532 | !ieee80211_hw_check(&local->hw, CHANCTX_STA_CSA)) { |
0f791eb4 LC |
1533 | sdata_info(sdata, |
1534 | "driver doesn't support chan-switch with channel contexts\n"); | |
f3b0bbb3 | 1535 | goto drop_connection; |
55de908a JB |
1536 | } |
1537 | ||
6d027bcc LC |
1538 | if (drv_pre_channel_switch(sdata, &ch_switch)) { |
1539 | sdata_info(sdata, | |
1540 | "preparing for channel switch failed, disconnecting\n"); | |
f3b0bbb3 | 1541 | goto drop_connection; |
6d027bcc LC |
1542 | } |
1543 | ||
5bd5666d | 1544 | res = ieee80211_link_reserve_chanctx(link, &csa_ie.chandef, |
b4f85443 | 1545 | chanctx->mode, false); |
4c3ebc56 | 1546 | if (res) { |
55de908a | 1547 | sdata_info(sdata, |
4c3ebc56 MK |
1548 | "failed to reserve channel context for channel switch, disconnecting (err=%d)\n", |
1549 | res); | |
f3b0bbb3 | 1550 | goto drop_connection; |
55de908a | 1551 | } |
b4f286a1 | 1552 | mutex_unlock(&local->chanctx_mtx); |
55de908a | 1553 | |
5bd5666d JB |
1554 | link->conf->csa_active = true; |
1555 | link->csa_chandef = csa_ie.chandef; | |
1556 | link->csa_block_tx = csa_ie.mode; | |
1557 | link->u.mgd.csa_ignored_same_chan = false; | |
1558 | link->u.mgd.beacon_crc_valid = false; | |
55de908a | 1559 | |
5bd5666d | 1560 | if (link->csa_block_tx) |
a46992b4 LC |
1561 | ieee80211_stop_vif_queues(local, sdata, |
1562 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
59af6928 | 1563 | mutex_unlock(&local->mtx); |
57eebdf3 | 1564 | |
2f457293 | 1565 | cfg80211_ch_switch_started_notify(sdata->dev, &csa_ie.chandef, |
669b8413 | 1566 | csa_ie.count, csa_ie.mode); |
2f457293 | 1567 | |
b4f286a1 | 1568 | if (local->ops->channel_switch) { |
5ce6e438 | 1569 | /* use driver's channel switch callback */ |
0f791eb4 | 1570 | drv_channel_switch(local, sdata, &ch_switch); |
5ce6e438 JB |
1571 | return; |
1572 | } | |
1573 | ||
1574 | /* channel switch handled in software */ | |
c0f17eb9 | 1575 | if (csa_ie.count <= 1) |
5bd5666d | 1576 | ieee80211_queue_work(&local->hw, &link->u.mgd.chswitch_work); |
57eebdf3 | 1577 | else |
5bd5666d | 1578 | mod_timer(&link->u.mgd.chswitch_timer, |
ff1e417c LC |
1579 | TU_TO_EXP_TIME((csa_ie.count - 1) * |
1580 | cbss->beacon_interval)); | |
f3b0bbb3 | 1581 | return; |
3660944a JB |
1582 | lock_and_drop_connection: |
1583 | mutex_lock(&local->mtx); | |
1584 | mutex_lock(&local->chanctx_mtx); | |
f3b0bbb3 | 1585 | drop_connection: |
6c18b27d EG |
1586 | /* |
1587 | * This is just so that the disconnect flow will know that | |
1588 | * we were trying to switch channel and failed. In case the | |
1589 | * mode is 1 (we are not allowed to Tx), we will know not to | |
1590 | * send a deauthentication frame. Those two fields will be | |
1591 | * reset when the disconnection worker runs. | |
1592 | */ | |
5bd5666d JB |
1593 | link->conf->csa_active = true; |
1594 | link->csa_block_tx = csa_ie.mode; | |
6c18b27d | 1595 | |
f3b0bbb3 JB |
1596 | ieee80211_queue_work(&local->hw, &ifmgd->csa_connection_drop_work); |
1597 | mutex_unlock(&local->chanctx_mtx); | |
1598 | mutex_unlock(&local->mtx); | |
cc32abd4 JB |
1599 | } |
1600 | ||
24a4e400 SG |
1601 | static bool |
1602 | ieee80211_find_80211h_pwr_constr(struct ieee80211_sub_if_data *sdata, | |
1603 | struct ieee80211_channel *channel, | |
1604 | const u8 *country_ie, u8 country_ie_len, | |
1605 | const u8 *pwr_constr_elem, | |
1606 | int *chan_pwr, int *pwr_reduction) | |
cc32abd4 | 1607 | { |
04b7b2ff JB |
1608 | struct ieee80211_country_ie_triplet *triplet; |
1609 | int chan = ieee80211_frequency_to_channel(channel->center_freq); | |
24a4e400 | 1610 | int i, chan_increment; |
04b7b2ff | 1611 | bool have_chan_pwr = false; |
cc32abd4 | 1612 | |
04b7b2ff JB |
1613 | /* Invalid IE */ |
1614 | if (country_ie_len % 2 || country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) | |
24a4e400 | 1615 | return false; |
cc32abd4 | 1616 | |
04b7b2ff JB |
1617 | triplet = (void *)(country_ie + 3); |
1618 | country_ie_len -= 3; | |
1619 | ||
1620 | switch (channel->band) { | |
1621 | default: | |
1622 | WARN_ON_ONCE(1); | |
fc0561dc | 1623 | fallthrough; |
57fbcce3 JB |
1624 | case NL80211_BAND_2GHZ: |
1625 | case NL80211_BAND_60GHZ: | |
63fa0426 | 1626 | case NL80211_BAND_LC: |
04b7b2ff JB |
1627 | chan_increment = 1; |
1628 | break; | |
57fbcce3 | 1629 | case NL80211_BAND_5GHZ: |
04b7b2ff JB |
1630 | chan_increment = 4; |
1631 | break; | |
2dedfe1d JB |
1632 | case NL80211_BAND_6GHZ: |
1633 | /* | |
1634 | * In the 6 GHz band, the "maximum transmit power level" | |
1635 | * field in the triplets is reserved, and thus will be | |
1636 | * zero and we shouldn't use it to control TX power. | |
1637 | * The actual TX power will be given in the transmit | |
1638 | * power envelope element instead. | |
1639 | */ | |
1640 | return false; | |
cc32abd4 | 1641 | } |
04b7b2ff JB |
1642 | |
1643 | /* find channel */ | |
1644 | while (country_ie_len >= 3) { | |
1645 | u8 first_channel = triplet->chans.first_channel; | |
1646 | ||
1647 | if (first_channel >= IEEE80211_COUNTRY_EXTENSION_ID) | |
1648 | goto next; | |
1649 | ||
1650 | for (i = 0; i < triplet->chans.num_channels; i++) { | |
1651 | if (first_channel + i * chan_increment == chan) { | |
1652 | have_chan_pwr = true; | |
24a4e400 | 1653 | *chan_pwr = triplet->chans.max_power; |
04b7b2ff JB |
1654 | break; |
1655 | } | |
1656 | } | |
1657 | if (have_chan_pwr) | |
1658 | break; | |
1659 | ||
1660 | next: | |
1661 | triplet++; | |
1662 | country_ie_len -= 3; | |
1663 | } | |
1664 | ||
a5fee9cb | 1665 | if (have_chan_pwr && pwr_constr_elem) |
24a4e400 | 1666 | *pwr_reduction = *pwr_constr_elem; |
a5fee9cb MB |
1667 | else |
1668 | *pwr_reduction = 0; | |
1669 | ||
24a4e400 SG |
1670 | return have_chan_pwr; |
1671 | } | |
1672 | ||
c8d65917 SG |
1673 | static void ieee80211_find_cisco_dtpc(struct ieee80211_sub_if_data *sdata, |
1674 | struct ieee80211_channel *channel, | |
1675 | const u8 *cisco_dtpc_ie, | |
1676 | int *pwr_level) | |
1677 | { | |
1678 | /* From practical testing, the first data byte of the DTPC element | |
1679 | * seems to contain the requested dBm level, and the CLI on Cisco | |
1680 | * APs clearly state the range is -127 to 127 dBm, which indicates | |
1681 | * a signed byte, although it seemingly never actually goes negative. | |
1682 | * The other byte seems to always be zero. | |
1683 | */ | |
1684 | *pwr_level = (__s8)cisco_dtpc_ie[4]; | |
1685 | } | |
1686 | ||
5bd5666d | 1687 | static u32 ieee80211_handle_pwr_constr(struct ieee80211_link_data *link, |
24a4e400 SG |
1688 | struct ieee80211_channel *channel, |
1689 | struct ieee80211_mgmt *mgmt, | |
1690 | const u8 *country_ie, u8 country_ie_len, | |
c8d65917 SG |
1691 | const u8 *pwr_constr_ie, |
1692 | const u8 *cisco_dtpc_ie) | |
24a4e400 | 1693 | { |
5bd5666d | 1694 | struct ieee80211_sub_if_data *sdata = link->sdata; |
c8d65917 SG |
1695 | bool has_80211h_pwr = false, has_cisco_pwr = false; |
1696 | int chan_pwr = 0, pwr_reduction_80211h = 0; | |
1697 | int pwr_level_cisco, pwr_level_80211h; | |
24a4e400 | 1698 | int new_ap_level; |
a5fee9cb | 1699 | __le16 capab = mgmt->u.probe_resp.capab_info; |
04b7b2ff | 1700 | |
09a740ce TP |
1701 | if (ieee80211_is_s1g_beacon(mgmt->frame_control)) |
1702 | return 0; /* TODO */ | |
1703 | ||
a5fee9cb MB |
1704 | if (country_ie && |
1705 | (capab & cpu_to_le16(WLAN_CAPABILITY_SPECTRUM_MGMT) || | |
1706 | capab & cpu_to_le16(WLAN_CAPABILITY_RADIO_MEASURE))) { | |
24a4e400 SG |
1707 | has_80211h_pwr = ieee80211_find_80211h_pwr_constr( |
1708 | sdata, channel, country_ie, country_ie_len, | |
1709 | pwr_constr_ie, &chan_pwr, &pwr_reduction_80211h); | |
c8d65917 SG |
1710 | pwr_level_80211h = |
1711 | max_t(int, 0, chan_pwr - pwr_reduction_80211h); | |
1712 | } | |
1713 | ||
1714 | if (cisco_dtpc_ie) { | |
1715 | ieee80211_find_cisco_dtpc( | |
1716 | sdata, channel, cisco_dtpc_ie, &pwr_level_cisco); | |
1717 | has_cisco_pwr = true; | |
24a4e400 | 1718 | } |
04b7b2ff | 1719 | |
c8d65917 | 1720 | if (!has_80211h_pwr && !has_cisco_pwr) |
1ea6f9c0 | 1721 | return 0; |
04b7b2ff | 1722 | |
c8d65917 SG |
1723 | /* If we have both 802.11h and Cisco DTPC, apply both limits |
1724 | * by picking the smallest of the two power levels advertised. | |
1725 | */ | |
1726 | if (has_80211h_pwr && | |
1727 | (!has_cisco_pwr || pwr_level_80211h <= pwr_level_cisco)) { | |
a87da0cb JB |
1728 | new_ap_level = pwr_level_80211h; |
1729 | ||
5bd5666d | 1730 | if (link->ap_power_level == new_ap_level) |
a87da0cb JB |
1731 | return 0; |
1732 | ||
cef2fc1c JL |
1733 | sdata_dbg(sdata, |
1734 | "Limiting TX power to %d (%d - %d) dBm as advertised by %pM\n", | |
1735 | pwr_level_80211h, chan_pwr, pwr_reduction_80211h, | |
5bd5666d | 1736 | link->u.mgd.bssid); |
c8d65917 | 1737 | } else { /* has_cisco_pwr is always true here. */ |
a87da0cb JB |
1738 | new_ap_level = pwr_level_cisco; |
1739 | ||
5bd5666d | 1740 | if (link->ap_power_level == new_ap_level) |
a87da0cb JB |
1741 | return 0; |
1742 | ||
cef2fc1c JL |
1743 | sdata_dbg(sdata, |
1744 | "Limiting TX power to %d dBm as advertised by %pM\n", | |
5bd5666d | 1745 | pwr_level_cisco, link->u.mgd.bssid); |
c8d65917 | 1746 | } |
04b7b2ff | 1747 | |
5bd5666d | 1748 | link->ap_power_level = new_ap_level; |
1ea6f9c0 JB |
1749 | if (__ieee80211_recalc_txpower(sdata)) |
1750 | return BSS_CHANGED_TXPOWER; | |
1751 | return 0; | |
cc32abd4 JB |
1752 | } |
1753 | ||
965bedad JB |
1754 | /* powersave */ |
1755 | static void ieee80211_enable_ps(struct ieee80211_local *local, | |
1756 | struct ieee80211_sub_if_data *sdata) | |
1757 | { | |
1758 | struct ieee80211_conf *conf = &local->hw.conf; | |
1759 | ||
d5edaedc JB |
1760 | /* |
1761 | * If we are scanning right now then the parameters will | |
1762 | * take effect when scan finishes. | |
1763 | */ | |
fbe9c429 | 1764 | if (local->scanning) |
d5edaedc JB |
1765 | return; |
1766 | ||
965bedad | 1767 | if (conf->dynamic_ps_timeout > 0 && |
30686bf7 | 1768 | !ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) { |
965bedad JB |
1769 | mod_timer(&local->dynamic_ps_timer, jiffies + |
1770 | msecs_to_jiffies(conf->dynamic_ps_timeout)); | |
1771 | } else { | |
30686bf7 | 1772 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK)) |
076cdcb1 | 1773 | ieee80211_send_nullfunc(local, sdata, true); |
375177bf | 1774 | |
30686bf7 JB |
1775 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && |
1776 | ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) | |
2a13052f JO |
1777 | return; |
1778 | ||
1779 | conf->flags |= IEEE80211_CONF_PS; | |
1780 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
965bedad JB |
1781 | } |
1782 | } | |
1783 | ||
1784 | static void ieee80211_change_ps(struct ieee80211_local *local) | |
1785 | { | |
1786 | struct ieee80211_conf *conf = &local->hw.conf; | |
1787 | ||
1788 | if (local->ps_sdata) { | |
965bedad JB |
1789 | ieee80211_enable_ps(local, local->ps_sdata); |
1790 | } else if (conf->flags & IEEE80211_CONF_PS) { | |
1791 | conf->flags &= ~IEEE80211_CONF_PS; | |
1792 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
1793 | del_timer_sync(&local->dynamic_ps_timer); | |
1794 | cancel_work_sync(&local->dynamic_ps_enable_work); | |
1795 | } | |
1796 | } | |
1797 | ||
808118cb JY |
1798 | static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata) |
1799 | { | |
8c7c6b58 | 1800 | struct ieee80211_local *local = sdata->local; |
808118cb JY |
1801 | struct ieee80211_if_managed *mgd = &sdata->u.mgd; |
1802 | struct sta_info *sta = NULL; | |
c2c98fde | 1803 | bool authorized = false; |
808118cb JY |
1804 | |
1805 | if (!mgd->powersave) | |
1806 | return false; | |
1807 | ||
05cb9108 JB |
1808 | if (mgd->broken_ap) |
1809 | return false; | |
1810 | ||
808118cb JY |
1811 | if (!mgd->associated) |
1812 | return false; | |
1813 | ||
392b9ffb | 1814 | if (mgd->flags & IEEE80211_STA_CONNECTION_POLL) |
808118cb JY |
1815 | return false; |
1816 | ||
8c7c6b58 JB |
1817 | if (!(local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO) && |
1818 | !sdata->deflink.u.mgd.have_beacon) | |
ce857888 AB |
1819 | return false; |
1820 | ||
808118cb | 1821 | rcu_read_lock(); |
b65567b0 | 1822 | sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr); |
808118cb | 1823 | if (sta) |
c2c98fde | 1824 | authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED); |
808118cb JY |
1825 | rcu_read_unlock(); |
1826 | ||
c2c98fde | 1827 | return authorized; |
808118cb JY |
1828 | } |
1829 | ||
965bedad | 1830 | /* need to hold RTNL or interface lock */ |
4a733ef1 | 1831 | void ieee80211_recalc_ps(struct ieee80211_local *local) |
965bedad JB |
1832 | { |
1833 | struct ieee80211_sub_if_data *sdata, *found = NULL; | |
1834 | int count = 0; | |
195e294d | 1835 | int timeout; |
965bedad | 1836 | |
28977e79 JB |
1837 | if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS) || |
1838 | ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) { | |
965bedad JB |
1839 | local->ps_sdata = NULL; |
1840 | return; | |
1841 | } | |
1842 | ||
1843 | list_for_each_entry(sdata, &local->interfaces, list) { | |
9607e6b6 | 1844 | if (!ieee80211_sdata_running(sdata)) |
965bedad | 1845 | continue; |
8c7914de RM |
1846 | if (sdata->vif.type == NL80211_IFTYPE_AP) { |
1847 | /* If an AP vif is found, then disable PS | |
1848 | * by setting the count to zero thereby setting | |
1849 | * ps_sdata to NULL. | |
1850 | */ | |
1851 | count = 0; | |
1852 | break; | |
1853 | } | |
965bedad JB |
1854 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
1855 | continue; | |
1856 | found = sdata; | |
1857 | count++; | |
1858 | } | |
1859 | ||
808118cb | 1860 | if (count == 1 && ieee80211_powersave_allowed(found)) { |
bfd8403a | 1861 | u8 dtimper = found->deflink.u.mgd.dtim_period; |
10f644a4 | 1862 | |
ff616381 | 1863 | timeout = local->dynamic_ps_forced_timeout; |
4a733ef1 JB |
1864 | if (timeout < 0) |
1865 | timeout = 100; | |
09b85568 | 1866 | local->hw.conf.dynamic_ps_timeout = timeout; |
195e294d | 1867 | |
4a733ef1 JB |
1868 | /* If the TIM IE is invalid, pretend the value is 1 */ |
1869 | if (!dtimper) | |
1870 | dtimper = 1; | |
1871 | ||
1872 | local->hw.conf.ps_dtim_period = dtimper; | |
1873 | local->ps_sdata = found; | |
10f644a4 | 1874 | } else { |
965bedad | 1875 | local->ps_sdata = NULL; |
10f644a4 | 1876 | } |
965bedad JB |
1877 | |
1878 | ieee80211_change_ps(local); | |
1879 | } | |
1880 | ||
ab095877 EP |
1881 | void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata) |
1882 | { | |
1883 | bool ps_allowed = ieee80211_powersave_allowed(sdata); | |
1884 | ||
a3b8008d JB |
1885 | if (sdata->vif.cfg.ps != ps_allowed) { |
1886 | sdata->vif.cfg.ps = ps_allowed; | |
1887 | ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_PS); | |
ab095877 EP |
1888 | } |
1889 | } | |
1890 | ||
965bedad JB |
1891 | void ieee80211_dynamic_ps_disable_work(struct work_struct *work) |
1892 | { | |
1893 | struct ieee80211_local *local = | |
1894 | container_of(work, struct ieee80211_local, | |
1895 | dynamic_ps_disable_work); | |
1896 | ||
1897 | if (local->hw.conf.flags & IEEE80211_CONF_PS) { | |
1898 | local->hw.conf.flags &= ~IEEE80211_CONF_PS; | |
1899 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
1900 | } | |
1901 | ||
1902 | ieee80211_wake_queues_by_reason(&local->hw, | |
445ea4e8 | 1903 | IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
1904 | IEEE80211_QUEUE_STOP_REASON_PS, |
1905 | false); | |
965bedad JB |
1906 | } |
1907 | ||
1908 | void ieee80211_dynamic_ps_enable_work(struct work_struct *work) | |
1909 | { | |
1910 | struct ieee80211_local *local = | |
1911 | container_of(work, struct ieee80211_local, | |
1912 | dynamic_ps_enable_work); | |
1913 | struct ieee80211_sub_if_data *sdata = local->ps_sdata; | |
5e34069c | 1914 | struct ieee80211_if_managed *ifmgd; |
1ddc2867 RM |
1915 | unsigned long flags; |
1916 | int q; | |
965bedad JB |
1917 | |
1918 | /* can only happen when PS was just disabled anyway */ | |
1919 | if (!sdata) | |
1920 | return; | |
1921 | ||
5e34069c CL |
1922 | ifmgd = &sdata->u.mgd; |
1923 | ||
965bedad JB |
1924 | if (local->hw.conf.flags & IEEE80211_CONF_PS) |
1925 | return; | |
1926 | ||
09b85568 | 1927 | if (local->hw.conf.dynamic_ps_timeout > 0) { |
77b7023a AN |
1928 | /* don't enter PS if TX frames are pending */ |
1929 | if (drv_tx_frames_pending(local)) { | |
1ddc2867 RM |
1930 | mod_timer(&local->dynamic_ps_timer, jiffies + |
1931 | msecs_to_jiffies( | |
1932 | local->hw.conf.dynamic_ps_timeout)); | |
1933 | return; | |
1934 | } | |
77b7023a AN |
1935 | |
1936 | /* | |
1937 | * transmission can be stopped by others which leads to | |
1938 | * dynamic_ps_timer expiry. Postpone the ps timer if it | |
1939 | * is not the actual idle state. | |
1940 | */ | |
1941 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
1942 | for (q = 0; q < local->hw.queues; q++) { | |
1943 | if (local->queue_stop_reasons[q]) { | |
1944 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, | |
1945 | flags); | |
1946 | mod_timer(&local->dynamic_ps_timer, jiffies + | |
1947 | msecs_to_jiffies( | |
1948 | local->hw.conf.dynamic_ps_timeout)); | |
1949 | return; | |
1950 | } | |
1951 | } | |
1952 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
1ddc2867 | 1953 | } |
1ddc2867 | 1954 | |
30686bf7 | 1955 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && |
9c38a8b4 | 1956 | !(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) { |
a1598383 | 1957 | if (drv_tx_frames_pending(local)) { |
e8306f98 VN |
1958 | mod_timer(&local->dynamic_ps_timer, jiffies + |
1959 | msecs_to_jiffies( | |
1960 | local->hw.conf.dynamic_ps_timeout)); | |
a1598383 | 1961 | } else { |
076cdcb1 | 1962 | ieee80211_send_nullfunc(local, sdata, true); |
e8306f98 | 1963 | /* Flush to get the tx status of nullfunc frame */ |
3b24f4c6 | 1964 | ieee80211_flush_queues(local, sdata, false); |
e8306f98 | 1965 | } |
f3e85b9e VN |
1966 | } |
1967 | ||
30686bf7 JB |
1968 | if (!(ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS) && |
1969 | ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK)) || | |
375177bf VN |
1970 | (ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) { |
1971 | ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED; | |
1972 | local->hw.conf.flags |= IEEE80211_CONF_PS; | |
1973 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
1974 | } | |
965bedad JB |
1975 | } |
1976 | ||
34f11cd3 | 1977 | void ieee80211_dynamic_ps_timer(struct timer_list *t) |
965bedad | 1978 | { |
34f11cd3 | 1979 | struct ieee80211_local *local = from_timer(local, t, dynamic_ps_timer); |
965bedad | 1980 | |
42935eca | 1981 | ieee80211_queue_work(&local->hw, &local->dynamic_ps_enable_work); |
965bedad JB |
1982 | } |
1983 | ||
164eb02d SW |
1984 | void ieee80211_dfs_cac_timer_work(struct work_struct *work) |
1985 | { | |
a85a7e28 | 1986 | struct delayed_work *delayed_work = to_delayed_work(work); |
5bd5666d JB |
1987 | struct ieee80211_link_data *link = |
1988 | container_of(delayed_work, struct ieee80211_link_data, | |
1989 | dfs_cac_timer_work); | |
1990 | struct cfg80211_chan_def chandef = link->conf->chandef; | |
1991 | struct ieee80211_sub_if_data *sdata = link->sdata; | |
164eb02d | 1992 | |
34a3740d JB |
1993 | mutex_lock(&sdata->local->mtx); |
1994 | if (sdata->wdev.cac_started) { | |
5bd5666d | 1995 | ieee80211_link_release_channel(link); |
34a3740d JB |
1996 | cfg80211_cac_event(sdata->dev, &chandef, |
1997 | NL80211_RADAR_CAC_FINISHED, | |
1998 | GFP_KERNEL); | |
1999 | } | |
2000 | mutex_unlock(&sdata->local->mtx); | |
164eb02d SW |
2001 | } |
2002 | ||
02219b3a JB |
2003 | static bool |
2004 | __ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata) | |
2005 | { | |
2006 | struct ieee80211_local *local = sdata->local; | |
2007 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
cc72f6e2 | 2008 | bool ret = false; |
02219b3a JB |
2009 | int ac; |
2010 | ||
2011 | if (local->hw.queues < IEEE80211_NUM_ACS) | |
2012 | return false; | |
2013 | ||
2014 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { | |
2015 | struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; | |
2016 | int non_acm_ac; | |
2017 | unsigned long now = jiffies; | |
2018 | ||
2019 | if (tx_tspec->action == TX_TSPEC_ACTION_NONE && | |
2020 | tx_tspec->admitted_time && | |
2021 | time_after(now, tx_tspec->time_slice_start + HZ)) { | |
2022 | tx_tspec->consumed_tx_time = 0; | |
2023 | tx_tspec->time_slice_start = now; | |
2024 | ||
2025 | if (tx_tspec->downgraded) | |
2026 | tx_tspec->action = | |
2027 | TX_TSPEC_ACTION_STOP_DOWNGRADE; | |
2028 | } | |
2029 | ||
2030 | switch (tx_tspec->action) { | |
2031 | case TX_TSPEC_ACTION_STOP_DOWNGRADE: | |
2032 | /* take the original parameters */ | |
b3e2130b JB |
2033 | if (drv_conf_tx(local, &sdata->deflink, ac, |
2034 | &sdata->deflink.tx_conf[ac])) | |
2035 | link_err(&sdata->deflink, | |
2036 | "failed to set TX queue parameters for queue %d\n", | |
2037 | ac); | |
02219b3a JB |
2038 | tx_tspec->action = TX_TSPEC_ACTION_NONE; |
2039 | tx_tspec->downgraded = false; | |
2040 | ret = true; | |
2041 | break; | |
2042 | case TX_TSPEC_ACTION_DOWNGRADE: | |
2043 | if (time_after(now, tx_tspec->time_slice_start + HZ)) { | |
2044 | tx_tspec->action = TX_TSPEC_ACTION_NONE; | |
2045 | ret = true; | |
2046 | break; | |
2047 | } | |
2048 | /* downgrade next lower non-ACM AC */ | |
2049 | for (non_acm_ac = ac + 1; | |
2050 | non_acm_ac < IEEE80211_NUM_ACS; | |
2051 | non_acm_ac++) | |
2052 | if (!(sdata->wmm_acm & BIT(7 - 2 * non_acm_ac))) | |
2053 | break; | |
93db1d9e JB |
2054 | /* Usually the loop will result in using BK even if it |
2055 | * requires admission control, but such a configuration | |
2056 | * makes no sense and we have to transmit somehow - the | |
2057 | * AC selection does the same thing. | |
2058 | * If we started out trying to downgrade from BK, then | |
2059 | * the extra condition here might be needed. | |
02219b3a | 2060 | */ |
93db1d9e JB |
2061 | if (non_acm_ac >= IEEE80211_NUM_ACS) |
2062 | non_acm_ac = IEEE80211_AC_BK; | |
b3e2130b JB |
2063 | if (drv_conf_tx(local, &sdata->deflink, ac, |
2064 | &sdata->deflink.tx_conf[non_acm_ac])) | |
2065 | link_err(&sdata->deflink, | |
2066 | "failed to set TX queue parameters for queue %d\n", | |
2067 | ac); | |
02219b3a JB |
2068 | tx_tspec->action = TX_TSPEC_ACTION_NONE; |
2069 | ret = true; | |
2070 | schedule_delayed_work(&ifmgd->tx_tspec_wk, | |
2071 | tx_tspec->time_slice_start + HZ - now + 1); | |
2072 | break; | |
2073 | case TX_TSPEC_ACTION_NONE: | |
2074 | /* nothing now */ | |
2075 | break; | |
2076 | } | |
2077 | } | |
2078 | ||
2079 | return ret; | |
2080 | } | |
2081 | ||
2082 | void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata) | |
2083 | { | |
2084 | if (__ieee80211_sta_handle_tspec_ac_params(sdata)) | |
d8675a63 JB |
2085 | ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
2086 | BSS_CHANGED_QOS); | |
02219b3a JB |
2087 | } |
2088 | ||
2089 | static void ieee80211_sta_handle_tspec_ac_params_wk(struct work_struct *work) | |
2090 | { | |
2091 | struct ieee80211_sub_if_data *sdata; | |
2092 | ||
2093 | sdata = container_of(work, struct ieee80211_sub_if_data, | |
2094 | u.mgd.tx_tspec_wk.work); | |
2095 | ieee80211_sta_handle_tspec_ac_params(sdata); | |
2096 | } | |
2097 | ||
60f8b39c | 2098 | /* MLME */ |
41cbb0f5 LC |
2099 | static bool |
2100 | ieee80211_sta_wmm_params(struct ieee80211_local *local, | |
b3e2130b | 2101 | struct ieee80211_link_data *link, |
41cbb0f5 LC |
2102 | const u8 *wmm_param, size_t wmm_param_len, |
2103 | const struct ieee80211_mu_edca_param_set *mu_edca) | |
f0706e82 | 2104 | { |
b3e2130b | 2105 | struct ieee80211_sub_if_data *sdata = link->sdata; |
2ed77ea6 | 2106 | struct ieee80211_tx_queue_params params[IEEE80211_NUM_ACS]; |
4ced3f74 | 2107 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
f0706e82 | 2108 | size_t left; |
2e249fc3 | 2109 | int count, mu_edca_count, ac; |
4a3cb702 JB |
2110 | const u8 *pos; |
2111 | u8 uapsd_queues = 0; | |
f0706e82 | 2112 | |
e1b3ec1a | 2113 | if (!local->ops->conf_tx) |
7d25745d | 2114 | return false; |
e1b3ec1a | 2115 | |
32c5057b | 2116 | if (local->hw.queues < IEEE80211_NUM_ACS) |
7d25745d | 2117 | return false; |
3434fbd3 JB |
2118 | |
2119 | if (!wmm_param) | |
7d25745d | 2120 | return false; |
3434fbd3 | 2121 | |
f0706e82 | 2122 | if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1) |
7d25745d | 2123 | return false; |
ab13315a KV |
2124 | |
2125 | if (ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED) | |
dc41e4d4 | 2126 | uapsd_queues = ifmgd->uapsd_queues; |
ab13315a | 2127 | |
f0706e82 | 2128 | count = wmm_param[6] & 0x0f; |
2e249fc3 ST |
2129 | /* -1 is the initial value of ifmgd->mu_edca_last_param_set. |
2130 | * if mu_edca was preset before and now it disappeared tell | |
2131 | * the driver about it. | |
2132 | */ | |
2133 | mu_edca_count = mu_edca ? mu_edca->mu_qos_info & 0x0f : -1; | |
b3e2130b JB |
2134 | if (count == link->u.mgd.wmm_last_param_set && |
2135 | mu_edca_count == link->u.mgd.mu_edca_last_param_set) | |
7d25745d | 2136 | return false; |
b3e2130b JB |
2137 | link->u.mgd.wmm_last_param_set = count; |
2138 | link->u.mgd.mu_edca_last_param_set = mu_edca_count; | |
f0706e82 JB |
2139 | |
2140 | pos = wmm_param + 8; | |
2141 | left = wmm_param_len - 8; | |
2142 | ||
2143 | memset(¶ms, 0, sizeof(params)); | |
2144 | ||
00e96dec | 2145 | sdata->wmm_acm = 0; |
f0706e82 JB |
2146 | for (; left >= 4; left -= 4, pos += 4) { |
2147 | int aci = (pos[0] >> 5) & 0x03; | |
2148 | int acm = (pos[0] >> 4) & 0x01; | |
ab13315a | 2149 | bool uapsd = false; |
f0706e82 JB |
2150 | |
2151 | switch (aci) { | |
0eeb59fe | 2152 | case 1: /* AC_BK */ |
2ed77ea6 | 2153 | ac = IEEE80211_AC_BK; |
988c0f72 | 2154 | if (acm) |
00e96dec | 2155 | sdata->wmm_acm |= BIT(1) | BIT(2); /* BK/- */ |
ab13315a KV |
2156 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) |
2157 | uapsd = true; | |
41cbb0f5 LC |
2158 | params[ac].mu_edca = !!mu_edca; |
2159 | if (mu_edca) | |
2160 | params[ac].mu_edca_param_rec = mu_edca->ac_bk; | |
f0706e82 | 2161 | break; |
0eeb59fe | 2162 | case 2: /* AC_VI */ |
2ed77ea6 | 2163 | ac = IEEE80211_AC_VI; |
988c0f72 | 2164 | if (acm) |
00e96dec | 2165 | sdata->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */ |
ab13315a KV |
2166 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) |
2167 | uapsd = true; | |
41cbb0f5 LC |
2168 | params[ac].mu_edca = !!mu_edca; |
2169 | if (mu_edca) | |
2170 | params[ac].mu_edca_param_rec = mu_edca->ac_vi; | |
f0706e82 | 2171 | break; |
0eeb59fe | 2172 | case 3: /* AC_VO */ |
2ed77ea6 | 2173 | ac = IEEE80211_AC_VO; |
988c0f72 | 2174 | if (acm) |
00e96dec | 2175 | sdata->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */ |
ab13315a KV |
2176 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) |
2177 | uapsd = true; | |
41cbb0f5 LC |
2178 | params[ac].mu_edca = !!mu_edca; |
2179 | if (mu_edca) | |
2180 | params[ac].mu_edca_param_rec = mu_edca->ac_vo; | |
f0706e82 | 2181 | break; |
0eeb59fe | 2182 | case 0: /* AC_BE */ |
f0706e82 | 2183 | default: |
2ed77ea6 | 2184 | ac = IEEE80211_AC_BE; |
988c0f72 | 2185 | if (acm) |
00e96dec | 2186 | sdata->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */ |
ab13315a KV |
2187 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) |
2188 | uapsd = true; | |
41cbb0f5 LC |
2189 | params[ac].mu_edca = !!mu_edca; |
2190 | if (mu_edca) | |
2191 | params[ac].mu_edca_param_rec = mu_edca->ac_be; | |
f0706e82 JB |
2192 | break; |
2193 | } | |
2194 | ||
2ed77ea6 | 2195 | params[ac].aifs = pos[0] & 0x0f; |
730a7550 | 2196 | |
2ed77ea6 | 2197 | if (params[ac].aifs < 2) { |
730a7550 EG |
2198 | sdata_info(sdata, |
2199 | "AP has invalid WMM params (AIFSN=%d for ACI %d), will use 2\n", | |
2ed77ea6 JB |
2200 | params[ac].aifs, aci); |
2201 | params[ac].aifs = 2; | |
730a7550 | 2202 | } |
2ed77ea6 JB |
2203 | params[ac].cw_max = ecw2cw((pos[1] & 0xf0) >> 4); |
2204 | params[ac].cw_min = ecw2cw(pos[1] & 0x0f); | |
2205 | params[ac].txop = get_unaligned_le16(pos + 2); | |
2206 | params[ac].acm = acm; | |
2207 | params[ac].uapsd = uapsd; | |
ab13315a | 2208 | |
911a2648 | 2209 | if (params[ac].cw_min == 0 || |
c470bdc1 | 2210 | params[ac].cw_min > params[ac].cw_max) { |
2ed77ea6 JB |
2211 | sdata_info(sdata, |
2212 | "AP has invalid WMM params (CWmin/max=%d/%d for ACI %d), using defaults\n", | |
2213 | params[ac].cw_min, params[ac].cw_max, aci); | |
2214 | return false; | |
2215 | } | |
e552af05 | 2216 | ieee80211_regulatory_limit_wmm_params(sdata, ¶ms[ac], ac); |
2ed77ea6 JB |
2217 | } |
2218 | ||
05aaa5c9 BN |
2219 | /* WMM specification requires all 4 ACIs. */ |
2220 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { | |
2221 | if (params[ac].cw_min == 0) { | |
2222 | sdata_info(sdata, | |
2223 | "AP has invalid WMM params (missing AC %d), using defaults\n", | |
2224 | ac); | |
2225 | return false; | |
2226 | } | |
2227 | } | |
2228 | ||
2ed77ea6 | 2229 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { |
bdcbd8e0 | 2230 | mlme_dbg(sdata, |
2ed77ea6 JB |
2231 | "WMM AC=%d acm=%d aifs=%d cWmin=%d cWmax=%d txop=%d uapsd=%d, downgraded=%d\n", |
2232 | ac, params[ac].acm, | |
2233 | params[ac].aifs, params[ac].cw_min, params[ac].cw_max, | |
2234 | params[ac].txop, params[ac].uapsd, | |
2235 | ifmgd->tx_tspec[ac].downgraded); | |
b3e2130b | 2236 | link->tx_conf[ac] = params[ac]; |
2ed77ea6 | 2237 | if (!ifmgd->tx_tspec[ac].downgraded && |
b3e2130b JB |
2238 | drv_conf_tx(local, link, ac, ¶ms[ac])) |
2239 | link_err(link, | |
2240 | "failed to set TX queue parameters for AC %d\n", | |
2241 | ac); | |
f0706e82 | 2242 | } |
e1b3ec1a SG |
2243 | |
2244 | /* enable WMM or activate new settings */ | |
b3e2130b | 2245 | link->conf->qos = true; |
7d25745d | 2246 | return true; |
f0706e82 JB |
2247 | } |
2248 | ||
925e64c3 SG |
2249 | static void __ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) |
2250 | { | |
2251 | lockdep_assert_held(&sdata->local->mtx); | |
2252 | ||
392b9ffb | 2253 | sdata->u.mgd.flags &= ~IEEE80211_STA_CONNECTION_POLL; |
925e64c3 SG |
2254 | ieee80211_run_deferred_scan(sdata->local); |
2255 | } | |
2256 | ||
2257 | static void ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) | |
2258 | { | |
2259 | mutex_lock(&sdata->local->mtx); | |
2260 | __ieee80211_stop_poll(sdata); | |
2261 | mutex_unlock(&sdata->local->mtx); | |
2262 | } | |
2263 | ||
1dd0f31c | 2264 | static u32 ieee80211_handle_bss_capability(struct ieee80211_link_data *link, |
7a5158ef | 2265 | u16 capab, bool erp_valid, u8 erp) |
5628221c | 2266 | { |
1dd0f31c | 2267 | struct ieee80211_bss_conf *bss_conf = link->conf; |
21a8e9dd | 2268 | struct ieee80211_supported_band *sband; |
471b3efd | 2269 | u32 changed = 0; |
7a5158ef JB |
2270 | bool use_protection; |
2271 | bool use_short_preamble; | |
2272 | bool use_short_slot; | |
2273 | ||
1dd0f31c | 2274 | sband = ieee80211_get_link_sband(link); |
21a8e9dd MSS |
2275 | if (!sband) |
2276 | return changed; | |
2277 | ||
7a5158ef JB |
2278 | if (erp_valid) { |
2279 | use_protection = (erp & WLAN_ERP_USE_PROTECTION) != 0; | |
2280 | use_short_preamble = (erp & WLAN_ERP_BARKER_PREAMBLE) == 0; | |
2281 | } else { | |
2282 | use_protection = false; | |
2283 | use_short_preamble = !!(capab & WLAN_CAPABILITY_SHORT_PREAMBLE); | |
2284 | } | |
2285 | ||
2286 | use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME); | |
07c12d61 TM |
2287 | if (sband->band == NL80211_BAND_5GHZ || |
2288 | sband->band == NL80211_BAND_6GHZ) | |
43d35343 | 2289 | use_short_slot = true; |
5628221c | 2290 | |
471b3efd | 2291 | if (use_protection != bss_conf->use_cts_prot) { |
471b3efd JB |
2292 | bss_conf->use_cts_prot = use_protection; |
2293 | changed |= BSS_CHANGED_ERP_CTS_PROT; | |
5628221c | 2294 | } |
7e9ed188 | 2295 | |
d43c7b37 | 2296 | if (use_short_preamble != bss_conf->use_short_preamble) { |
d43c7b37 | 2297 | bss_conf->use_short_preamble = use_short_preamble; |
471b3efd | 2298 | changed |= BSS_CHANGED_ERP_PREAMBLE; |
7e9ed188 | 2299 | } |
d9430a32 | 2300 | |
7a5158ef | 2301 | if (use_short_slot != bss_conf->use_short_slot) { |
7a5158ef JB |
2302 | bss_conf->use_short_slot = use_short_slot; |
2303 | changed |= BSS_CHANGED_ERP_SLOT; | |
50c4afb9 JL |
2304 | } |
2305 | ||
2306 | return changed; | |
2307 | } | |
2308 | ||
f698d856 | 2309 | static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, |
0c1ad2ca | 2310 | struct cfg80211_bss *cbss, |
ae5eb026 | 2311 | u32 bss_info_changed) |
f0706e82 | 2312 | { |
0c1ad2ca | 2313 | struct ieee80211_bss *bss = (void *)cbss->priv; |
471b3efd | 2314 | struct ieee80211_local *local = sdata->local; |
5bd5666d JB |
2315 | struct ieee80211_link_data *link = &sdata->deflink; |
2316 | struct ieee80211_bss_conf *bss_conf = link->conf; | |
f276e20b | 2317 | struct ieee80211_vif_cfg *vif_cfg = &sdata->vif.cfg; |
d6f2da5b | 2318 | |
ae5eb026 | 2319 | bss_info_changed |= BSS_CHANGED_ASSOC; |
1dd0f31c | 2320 | bss_info_changed |= ieee80211_handle_bss_capability(link, |
50ae34a2 | 2321 | bss_conf->assoc_capability, bss->has_erp_value, bss->erp_value); |
21c0cbe7 | 2322 | |
7ccc8bd7 | 2323 | sdata->u.mgd.beacon_timeout = usecs_to_jiffies(ieee80211_tu_to_usec( |
59c1ec2b | 2324 | beacon_loss_count * bss_conf->beacon_int)); |
7ccc8bd7 | 2325 | |
5dfad108 | 2326 | sdata->u.mgd.associated = true; |
5bd5666d JB |
2327 | link->u.mgd.bss = cbss; |
2328 | memcpy(link->u.mgd.bssid, cbss->bssid, ETH_ALEN); | |
b65567b0 | 2329 | memcpy(sdata->vif.cfg.ap_addr, cbss->bssid, ETH_ALEN); |
f0706e82 | 2330 | |
e8e4f528 JB |
2331 | ieee80211_check_rate_mask(sdata); |
2332 | ||
b115b972 JD |
2333 | if (sdata->vif.p2p || |
2334 | sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) { | |
9caf0364 | 2335 | const struct cfg80211_bss_ies *ies; |
488dd7b5 | 2336 | |
9caf0364 JB |
2337 | rcu_read_lock(); |
2338 | ies = rcu_dereference(cbss->ies); | |
2339 | if (ies) { | |
9caf0364 JB |
2340 | int ret; |
2341 | ||
2342 | ret = cfg80211_get_p2p_attr( | |
2343 | ies->data, ies->len, | |
2344 | IEEE80211_P2P_ATTR_ABSENCE_NOTICE, | |
67baf663 JD |
2345 | (u8 *) &bss_conf->p2p_noa_attr, |
2346 | sizeof(bss_conf->p2p_noa_attr)); | |
9caf0364 | 2347 | if (ret >= 2) { |
5bd5666d | 2348 | link->u.mgd.p2p_noa_index = |
67baf663 | 2349 | bss_conf->p2p_noa_attr.index; |
9caf0364 | 2350 | bss_info_changed |= BSS_CHANGED_P2P_PS; |
9caf0364 | 2351 | } |
488dd7b5 | 2352 | } |
9caf0364 | 2353 | rcu_read_unlock(); |
488dd7b5 JB |
2354 | } |
2355 | ||
b291ba11 | 2356 | /* just to be sure */ |
925e64c3 | 2357 | ieee80211_stop_poll(sdata); |
b291ba11 | 2358 | |
9ac19a90 | 2359 | ieee80211_led_assoc(local, 1); |
9306102e | 2360 | |
5bd5666d | 2361 | if (link->u.mgd.have_beacon) { |
826262c3 JB |
2362 | /* |
2363 | * If the AP is buggy we may get here with no DTIM period | |
2364 | * known, so assume it's 1 which is the only safe assumption | |
2365 | * in that case, although if the TIM IE is broken powersave | |
2366 | * probably just won't work at all. | |
2367 | */ | |
5bd5666d | 2368 | bss_conf->dtim_period = link->u.mgd.dtim_period ?: 1; |
817cee76 | 2369 | bss_conf->beacon_rate = bss->beacon_rate; |
989c6505 | 2370 | bss_info_changed |= BSS_CHANGED_BEACON_INFO; |
826262c3 | 2371 | } else { |
817cee76 | 2372 | bss_conf->beacon_rate = NULL; |
e5b900d2 | 2373 | bss_conf->dtim_period = 0; |
826262c3 | 2374 | } |
e5b900d2 | 2375 | |
f276e20b | 2376 | vif_cfg->assoc = 1; |
9cef8737 | 2377 | |
a97c13c3 | 2378 | /* Tell the driver to monitor connection quality (if supported) */ |
ea086359 | 2379 | if (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI && |
68542962 | 2380 | bss_conf->cqm_rssi_thold) |
a97c13c3 JO |
2381 | bss_info_changed |= BSS_CHANGED_CQM; |
2382 | ||
68542962 | 2383 | /* Enable ARP filtering */ |
f276e20b | 2384 | if (vif_cfg->arp_addr_cnt) |
68542962 | 2385 | bss_info_changed |= BSS_CHANGED_ARP_FILTER; |
68542962 | 2386 | |
ae5eb026 | 2387 | ieee80211_bss_info_change_notify(sdata, bss_info_changed); |
f0706e82 | 2388 | |
056508dc | 2389 | mutex_lock(&local->iflist_mtx); |
4a733ef1 | 2390 | ieee80211_recalc_ps(local); |
056508dc | 2391 | mutex_unlock(&local->iflist_mtx); |
e0cb686f | 2392 | |
d8675a63 | 2393 | ieee80211_recalc_smps(sdata, &sdata->deflink); |
ab095877 EP |
2394 | ieee80211_recalc_ps_vif(sdata); |
2395 | ||
9ac19a90 | 2396 | netif_carrier_on(sdata->dev); |
f0706e82 JB |
2397 | } |
2398 | ||
e69e95db | 2399 | static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, |
37ad3888 JB |
2400 | u16 stype, u16 reason, bool tx, |
2401 | u8 *frame_buf) | |
aa458d17 | 2402 | { |
46900298 | 2403 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
aa458d17 | 2404 | struct ieee80211_local *local = sdata->local; |
63214f02 | 2405 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; |
5bd5666d | 2406 | struct ieee80211_link_data *link = &sdata->deflink; |
3cc5240b | 2407 | u32 changed = 0; |
15fae341 JB |
2408 | struct ieee80211_prep_tx_info info = { |
2409 | .subtype = stype, | |
2410 | }; | |
aa458d17 | 2411 | |
8d61ffa5 | 2412 | sdata_assert_lock(sdata); |
77fdaa12 | 2413 | |
37ad3888 JB |
2414 | if (WARN_ON_ONCE(tx && !frame_buf)) |
2415 | return; | |
2416 | ||
b291ba11 JB |
2417 | if (WARN_ON(!ifmgd->associated)) |
2418 | return; | |
2419 | ||
79543d8e DS |
2420 | ieee80211_stop_poll(sdata); |
2421 | ||
5dfad108 | 2422 | ifmgd->associated = false; |
5bd5666d | 2423 | link->u.mgd.bss = NULL; |
aa458d17 TW |
2424 | netif_carrier_off(sdata->dev); |
2425 | ||
88bc40e8 EP |
2426 | /* |
2427 | * if we want to get out of ps before disassoc (why?) we have | |
2428 | * to do it before sending disassoc, as otherwise the null-packet | |
2429 | * won't be valid. | |
2430 | */ | |
2431 | if (local->hw.conf.flags & IEEE80211_CONF_PS) { | |
2432 | local->hw.conf.flags &= ~IEEE80211_CONF_PS; | |
2433 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
2434 | } | |
2435 | local->ps_sdata = NULL; | |
2436 | ||
ab095877 EP |
2437 | /* disable per-vif ps */ |
2438 | ieee80211_recalc_ps_vif(sdata); | |
2439 | ||
14f2ae83 EG |
2440 | /* make sure ongoing transmission finishes */ |
2441 | synchronize_net(); | |
2442 | ||
3b24f4c6 EG |
2443 | /* |
2444 | * drop any frame before deauth/disassoc, this can be data or | |
2445 | * management frame. Since we are disconnecting, we should not | |
2446 | * insist sending these frames which can take time and delay | |
2447 | * the disconnection and possible the roaming. | |
2448 | */ | |
f823981e | 2449 | if (tx) |
3b24f4c6 | 2450 | ieee80211_flush_queues(local, sdata, true); |
f823981e | 2451 | |
37ad3888 | 2452 | /* deauthenticate/disassociate now */ |
94ba9271 | 2453 | if (tx || frame_buf) { |
94ba9271 IP |
2454 | /* |
2455 | * In multi channel scenarios guarantee that the virtual | |
2456 | * interface is granted immediate airtime to transmit the | |
2457 | * deauthentication frame by calling mgd_prepare_tx, if the | |
2458 | * driver requested so. | |
2459 | */ | |
2460 | if (ieee80211_hw_check(&local->hw, DEAUTH_NEED_MGD_TX_PREP) && | |
5bd5666d | 2461 | !link->u.mgd.have_beacon) { |
15fae341 JB |
2462 | drv_mgd_prepare_tx(sdata->local, sdata, &info); |
2463 | } | |
94ba9271 | 2464 | |
5bd5666d JB |
2465 | ieee80211_send_deauth_disassoc(sdata, link->u.mgd.bssid, |
2466 | link->u.mgd.bssid, stype, reason, | |
4b08d1b6 | 2467 | tx, frame_buf); |
94ba9271 | 2468 | } |
37ad3888 | 2469 | |
3b24f4c6 | 2470 | /* flush out frame - make sure the deauth was actually sent */ |
37ad3888 | 2471 | if (tx) |
3b24f4c6 | 2472 | ieee80211_flush_queues(local, sdata, false); |
37ad3888 | 2473 | |
15fae341 JB |
2474 | drv_mgd_complete_tx(sdata->local, sdata, &info); |
2475 | ||
88a9e31c | 2476 | /* clear bssid only after building the needed mgmt frames */ |
5bd5666d | 2477 | eth_zero_addr(link->u.mgd.bssid); |
88a9e31c | 2478 | |
b65567b0 | 2479 | eth_zero_addr(sdata->vif.cfg.ap_addr); |
f276e20b | 2480 | sdata->vif.cfg.ssid_len = 0; |
b0140fda | 2481 | |
37ad3888 | 2482 | /* remove AP and TDLS peers */ |
d34ba216 | 2483 | sta_info_flush(sdata); |
37ad3888 JB |
2484 | |
2485 | /* finally reset all BSS / config parameters */ | |
f5e5bf25 TW |
2486 | changed |= ieee80211_reset_erp_info(sdata); |
2487 | ||
f5e5bf25 | 2488 | ieee80211_led_assoc(local, 0); |
ae5eb026 | 2489 | changed |= BSS_CHANGED_ASSOC; |
f276e20b | 2490 | sdata->vif.cfg.assoc = false; |
f5e5bf25 | 2491 | |
5bd5666d JB |
2492 | link->u.mgd.p2p_noa_index = -1; |
2493 | memset(&link->conf->p2p_noa_attr, 0, | |
2494 | sizeof(link->conf->p2p_noa_attr)); | |
488dd7b5 | 2495 | |
dd5ecfea | 2496 | /* on the next assoc, re-program HT/VHT parameters */ |
ef96a842 BG |
2497 | memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa)); |
2498 | memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask)); | |
dd5ecfea JB |
2499 | memset(&ifmgd->vht_capa, 0, sizeof(ifmgd->vht_capa)); |
2500 | memset(&ifmgd->vht_capa_mask, 0, sizeof(ifmgd->vht_capa_mask)); | |
23a1f8d4 SS |
2501 | |
2502 | /* reset MU-MIMO ownership and group data */ | |
5bd5666d JB |
2503 | memset(link->conf->mu_group.membership, 0, |
2504 | sizeof(link->conf->mu_group.membership)); | |
2505 | memset(link->conf->mu_group.position, 0, | |
2506 | sizeof(link->conf->mu_group.position)); | |
23a1f8d4 | 2507 | changed |= BSS_CHANGED_MU_GROUPS; |
5bd5666d | 2508 | link->conf->mu_mimo_owner = false; |
413ad50a | 2509 | |
5bd5666d | 2510 | link->ap_power_level = IEEE80211_UNSET_POWER_LEVEL; |
a8302de9 | 2511 | |
520eb820 KV |
2512 | del_timer_sync(&local->dynamic_ps_timer); |
2513 | cancel_work_sync(&local->dynamic_ps_enable_work); | |
2514 | ||
68542962 | 2515 | /* Disable ARP filtering */ |
f276e20b | 2516 | if (sdata->vif.cfg.arp_addr_cnt) |
68542962 | 2517 | changed |= BSS_CHANGED_ARP_FILTER; |
68542962 | 2518 | |
5bd5666d | 2519 | link->conf->qos = false; |
3abead59 JB |
2520 | changed |= BSS_CHANGED_QOS; |
2521 | ||
0aaffa9b JB |
2522 | /* The BSSID (not really interesting) and HT changed */ |
2523 | changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT; | |
ae5eb026 | 2524 | ieee80211_bss_info_change_notify(sdata, changed); |
8e268e47 | 2525 | |
3abead59 | 2526 | /* disassociated - set to defaults now */ |
b3e2130b | 2527 | ieee80211_set_wmm_default(&sdata->deflink, false, false); |
3abead59 | 2528 | |
b9dcf712 JB |
2529 | del_timer_sync(&sdata->u.mgd.conn_mon_timer); |
2530 | del_timer_sync(&sdata->u.mgd.bcn_mon_timer); | |
2531 | del_timer_sync(&sdata->u.mgd.timer); | |
5bd5666d | 2532 | del_timer_sync(&link->u.mgd.chswitch_timer); |
2d9957cc | 2533 | |
5bd5666d JB |
2534 | link->conf->dtim_period = 0; |
2535 | link->conf->beacon_rate = NULL; | |
817cee76 | 2536 | |
5bd5666d JB |
2537 | link->u.mgd.have_beacon = false; |
2538 | link->u.mgd.tracking_signal_avg = false; | |
6359598d | 2539 | link->u.mgd.disable_wmm_tracking = false; |
826262c3 | 2540 | |
028e8da0 | 2541 | ifmgd->flags = 0; |
5bd5666d | 2542 | link->u.mgd.conn_flags = 0; |
34a3740d | 2543 | mutex_lock(&local->mtx); |
5bd5666d | 2544 | ieee80211_link_release_channel(link); |
59af6928 | 2545 | |
5bd5666d JB |
2546 | link->conf->csa_active = false; |
2547 | link->u.mgd.csa_waiting_bcn = false; | |
2548 | link->u.mgd.csa_ignored_same_chan = false; | |
2549 | if (link->csa_block_tx) { | |
a46992b4 LC |
2550 | ieee80211_wake_vif_queues(local, sdata, |
2551 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
5bd5666d | 2552 | link->csa_block_tx = false; |
a46992b4 | 2553 | } |
34a3740d | 2554 | mutex_unlock(&local->mtx); |
2475b1cc | 2555 | |
02219b3a JB |
2556 | /* existing TX TSPEC sessions no longer exist */ |
2557 | memset(ifmgd->tx_tspec, 0, sizeof(ifmgd->tx_tspec)); | |
2558 | cancel_delayed_work_sync(&ifmgd->tx_tspec_wk); | |
2559 | ||
63214f02 WG |
2560 | bss_conf->pwr_reduction = 0; |
2561 | bss_conf->tx_pwr_env_num = 0; | |
2562 | memset(bss_conf->tx_pwr_env, 0, sizeof(bss_conf->tx_pwr_env)); | |
aa458d17 | 2563 | } |
f0706e82 | 2564 | |
4e5ff376 FF |
2565 | static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata) |
2566 | { | |
2567 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
133d40f9 | 2568 | struct ieee80211_local *local = sdata->local; |
4e5ff376 | 2569 | |
133d40f9 | 2570 | mutex_lock(&local->mtx); |
392b9ffb SG |
2571 | if (!(ifmgd->flags & IEEE80211_STA_CONNECTION_POLL)) |
2572 | goto out; | |
4e5ff376 | 2573 | |
925e64c3 | 2574 | __ieee80211_stop_poll(sdata); |
133d40f9 SG |
2575 | |
2576 | mutex_lock(&local->iflist_mtx); | |
4a733ef1 | 2577 | ieee80211_recalc_ps(local); |
133d40f9 | 2578 | mutex_unlock(&local->iflist_mtx); |
4e5ff376 | 2579 | |
30686bf7 | 2580 | if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) |
133d40f9 | 2581 | goto out; |
4e5ff376 FF |
2582 | |
2583 | /* | |
2584 | * We've received a probe response, but are not sure whether | |
2585 | * we have or will be receiving any beacons or data, so let's | |
2586 | * schedule the timers again, just in case. | |
2587 | */ | |
2588 | ieee80211_sta_reset_beacon_monitor(sdata); | |
2589 | ||
2590 | mod_timer(&ifmgd->conn_mon_timer, | |
2591 | round_jiffies_up(jiffies + | |
2592 | IEEE80211_CONNECTION_IDLE_TIME)); | |
133d40f9 | 2593 | out: |
133d40f9 | 2594 | mutex_unlock(&local->mtx); |
4e5ff376 FF |
2595 | } |
2596 | ||
02219b3a JB |
2597 | static void ieee80211_sta_tx_wmm_ac_notify(struct ieee80211_sub_if_data *sdata, |
2598 | struct ieee80211_hdr *hdr, | |
2599 | u16 tx_time) | |
2600 | { | |
2601 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
d5e568c3 JB |
2602 | u16 tid; |
2603 | int ac; | |
2604 | struct ieee80211_sta_tx_tspec *tx_tspec; | |
02219b3a JB |
2605 | unsigned long now = jiffies; |
2606 | ||
d5e568c3 JB |
2607 | if (!ieee80211_is_data_qos(hdr->frame_control)) |
2608 | return; | |
2609 | ||
2610 | tid = ieee80211_get_tid(hdr); | |
2611 | ac = ieee80211_ac_from_tid(tid); | |
2612 | tx_tspec = &ifmgd->tx_tspec[ac]; | |
2613 | ||
02219b3a JB |
2614 | if (likely(!tx_tspec->admitted_time)) |
2615 | return; | |
2616 | ||
2617 | if (time_after(now, tx_tspec->time_slice_start + HZ)) { | |
2618 | tx_tspec->consumed_tx_time = 0; | |
2619 | tx_tspec->time_slice_start = now; | |
2620 | ||
2621 | if (tx_tspec->downgraded) { | |
2622 | tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; | |
2623 | schedule_delayed_work(&ifmgd->tx_tspec_wk, 0); | |
2624 | } | |
2625 | } | |
2626 | ||
2627 | if (tx_tspec->downgraded) | |
2628 | return; | |
2629 | ||
2630 | tx_tspec->consumed_tx_time += tx_time; | |
2631 | ||
2632 | if (tx_tspec->consumed_tx_time >= tx_tspec->admitted_time) { | |
2633 | tx_tspec->downgraded = true; | |
2634 | tx_tspec->action = TX_TSPEC_ACTION_DOWNGRADE; | |
2635 | schedule_delayed_work(&ifmgd->tx_tspec_wk, 0); | |
2636 | } | |
2637 | } | |
2638 | ||
4e5ff376 | 2639 | void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, |
02219b3a | 2640 | struct ieee80211_hdr *hdr, bool ack, u16 tx_time) |
4e5ff376 | 2641 | { |
02219b3a JB |
2642 | ieee80211_sta_tx_wmm_ac_notify(sdata, hdr, tx_time); |
2643 | ||
9abf4e49 FF |
2644 | if (!ieee80211_is_any_nullfunc(hdr->frame_control) || |
2645 | !sdata->u.mgd.probe_send_count) | |
cab1c7fd | 2646 | return; |
cab1c7fd | 2647 | |
e3f25908 FF |
2648 | if (ack) |
2649 | sdata->u.mgd.probe_send_count = 0; | |
2650 | else | |
9abf4e49 FF |
2651 | sdata->u.mgd.nullfunc_failed = true; |
2652 | ieee80211_queue_work(&sdata->local->hw, &sdata->work); | |
4e5ff376 FF |
2653 | } |
2654 | ||
45ad6834 JB |
2655 | static void ieee80211_mlme_send_probe_req(struct ieee80211_sub_if_data *sdata, |
2656 | const u8 *src, const u8 *dst, | |
2657 | const u8 *ssid, size_t ssid_len, | |
2658 | struct ieee80211_channel *channel) | |
2659 | { | |
2660 | struct sk_buff *skb; | |
2661 | ||
2662 | skb = ieee80211_build_probe_req(sdata, src, dst, (u32)-1, channel, | |
2663 | ssid, ssid_len, NULL, 0, | |
2664 | IEEE80211_PROBE_FLAG_DIRECTED); | |
2665 | if (skb) | |
2666 | ieee80211_tx_skb(sdata, skb); | |
2667 | } | |
2668 | ||
a43abf29 ML |
2669 | static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) |
2670 | { | |
2671 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
b65567b0 | 2672 | u8 *dst = sdata->vif.cfg.ap_addr; |
180205bd | 2673 | u8 unicast_limit = max(1, max_probe_tries - 3); |
49ddf8e6 | 2674 | struct sta_info *sta; |
f01a067d | 2675 | |
5bd5666d JB |
2676 | if (WARN_ON(sdata->vif.valid_links)) |
2677 | return; | |
2678 | ||
f01a067d LR |
2679 | /* |
2680 | * Try sending broadcast probe requests for the last three | |
2681 | * probe requests after the first ones failed since some | |
2682 | * buggy APs only support broadcast probe requests. | |
2683 | */ | |
2684 | if (ifmgd->probe_send_count >= unicast_limit) | |
2685 | dst = NULL; | |
a43abf29 | 2686 | |
4e5ff376 FF |
2687 | /* |
2688 | * When the hardware reports an accurate Tx ACK status, it's | |
2689 | * better to send a nullfunc frame instead of a probe request, | |
2690 | * as it will kick us off the AP quickly if we aren't associated | |
2691 | * anymore. The timeout will be reset if the frame is ACKed by | |
2692 | * the AP. | |
2693 | */ | |
992e68bf SD |
2694 | ifmgd->probe_send_count++; |
2695 | ||
49ddf8e6 JB |
2696 | if (dst) { |
2697 | mutex_lock(&sdata->local->sta_mtx); | |
2698 | sta = sta_info_get(sdata, dst); | |
2699 | if (!WARN_ON(!sta)) | |
2700 | ieee80211_check_fast_rx(sta); | |
2701 | mutex_unlock(&sdata->local->sta_mtx); | |
2702 | } | |
2703 | ||
30686bf7 | 2704 | if (ieee80211_hw_check(&sdata->local->hw, REPORTS_TX_ACK_STATUS)) { |
04ac3c0e | 2705 | ifmgd->nullfunc_failed = false; |
2832943c | 2706 | ieee80211_send_nullfunc(sdata->local, sdata, false); |
04ac3c0e | 2707 | } else { |
45ad6834 | 2708 | ieee80211_mlme_send_probe_req(sdata, sdata->vif.addr, dst, |
f276e20b JB |
2709 | sdata->vif.cfg.ssid, |
2710 | sdata->vif.cfg.ssid_len, | |
bfd8403a | 2711 | sdata->deflink.u.mgd.bss->channel); |
4e5ff376 | 2712 | } |
a43abf29 | 2713 | |
180205bd | 2714 | ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms); |
8d61ffa5 | 2715 | run_again(sdata, ifmgd->probe_timeout); |
a43abf29 ML |
2716 | } |
2717 | ||
b291ba11 JB |
2718 | static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, |
2719 | bool beacon) | |
04de8381 | 2720 | { |
04de8381 | 2721 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
b291ba11 | 2722 | bool already = false; |
34bfc411 | 2723 | |
5bd5666d JB |
2724 | if (WARN_ON(sdata->vif.valid_links)) |
2725 | return; | |
2726 | ||
9607e6b6 | 2727 | if (!ieee80211_sdata_running(sdata)) |
0e2b6286 JB |
2728 | return; |
2729 | ||
8d61ffa5 | 2730 | sdata_lock(sdata); |
77fdaa12 JB |
2731 | |
2732 | if (!ifmgd->associated) | |
2733 | goto out; | |
2734 | ||
133d40f9 SG |
2735 | mutex_lock(&sdata->local->mtx); |
2736 | ||
2737 | if (sdata->local->tmp_channel || sdata->local->scanning) { | |
2738 | mutex_unlock(&sdata->local->mtx); | |
2739 | goto out; | |
2740 | } | |
2741 | ||
b33fb28c LP |
2742 | if (sdata->local->suspending) { |
2743 | /* reschedule after resume */ | |
2744 | mutex_unlock(&sdata->local->mtx); | |
2745 | ieee80211_reset_ap_probe(sdata); | |
2746 | goto out; | |
2747 | } | |
2748 | ||
a13fbe54 | 2749 | if (beacon) { |
bdcbd8e0 | 2750 | mlme_dbg_ratelimited(sdata, |
59c1ec2b BG |
2751 | "detected beacon loss from AP (missed %d beacons) - probing\n", |
2752 | beacon_loss_count); | |
bdcbd8e0 | 2753 | |
98f03342 | 2754 | ieee80211_cqm_beacon_loss_notify(&sdata->vif, GFP_KERNEL); |
a13fbe54 | 2755 | } |
04de8381 | 2756 | |
b291ba11 JB |
2757 | /* |
2758 | * The driver/our work has already reported this event or the | |
2759 | * connection monitoring has kicked in and we have already sent | |
2760 | * a probe request. Or maybe the AP died and the driver keeps | |
2761 | * reporting until we disassociate... | |
2762 | * | |
2763 | * In either case we have to ignore the current call to this | |
2764 | * function (except for setting the correct probe reason bit) | |
2765 | * because otherwise we would reset the timer every time and | |
2766 | * never check whether we received a probe response! | |
2767 | */ | |
392b9ffb | 2768 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) |
b291ba11 JB |
2769 | already = true; |
2770 | ||
12b5f34d EP |
2771 | ifmgd->flags |= IEEE80211_STA_CONNECTION_POLL; |
2772 | ||
133d40f9 SG |
2773 | mutex_unlock(&sdata->local->mtx); |
2774 | ||
b291ba11 JB |
2775 | if (already) |
2776 | goto out; | |
2777 | ||
4e751843 | 2778 | mutex_lock(&sdata->local->iflist_mtx); |
4a733ef1 | 2779 | ieee80211_recalc_ps(sdata->local); |
4e751843 JB |
2780 | mutex_unlock(&sdata->local->iflist_mtx); |
2781 | ||
a43abf29 ML |
2782 | ifmgd->probe_send_count = 0; |
2783 | ieee80211_mgd_probe_ap_send(sdata); | |
77fdaa12 | 2784 | out: |
8d61ffa5 | 2785 | sdata_unlock(sdata); |
04de8381 KV |
2786 | } |
2787 | ||
a619a4c0 JO |
2788 | struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, |
2789 | struct ieee80211_vif *vif) | |
2790 | { | |
2791 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
2792 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
d9b3b28b | 2793 | struct cfg80211_bss *cbss; |
a619a4c0 | 2794 | struct sk_buff *skb; |
f2622138 | 2795 | const struct element *ssid; |
88c868c4 | 2796 | int ssid_len; |
a619a4c0 | 2797 | |
5bd5666d JB |
2798 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION || |
2799 | sdata->vif.valid_links)) | |
a619a4c0 JO |
2800 | return NULL; |
2801 | ||
8d61ffa5 | 2802 | sdata_assert_lock(sdata); |
a619a4c0 | 2803 | |
d9b3b28b | 2804 | if (ifmgd->associated) |
bfd8403a | 2805 | cbss = sdata->deflink.u.mgd.bss; |
d9b3b28b EP |
2806 | else if (ifmgd->auth_data) |
2807 | cbss = ifmgd->auth_data->bss; | |
2808 | else if (ifmgd->assoc_data) | |
2809 | cbss = ifmgd->assoc_data->bss; | |
2810 | else | |
a619a4c0 JO |
2811 | return NULL; |
2812 | ||
9caf0364 | 2813 | rcu_read_lock(); |
f2622138 JB |
2814 | ssid = ieee80211_bss_get_elem(cbss, WLAN_EID_SSID); |
2815 | if (WARN_ONCE(!ssid || ssid->datalen > IEEE80211_MAX_SSID_LEN, | |
2816 | "invalid SSID element (len=%d)", | |
2817 | ssid ? ssid->datalen : -1)) | |
88c868c4 SG |
2818 | ssid_len = 0; |
2819 | else | |
f2622138 | 2820 | ssid_len = ssid->datalen; |
88c868c4 | 2821 | |
a344d677 | 2822 | skb = ieee80211_build_probe_req(sdata, sdata->vif.addr, cbss->bssid, |
55de908a | 2823 | (u32) -1, cbss->channel, |
f2622138 | 2824 | ssid->data, ssid_len, |
00387f32 | 2825 | NULL, 0, IEEE80211_PROBE_FLAG_DIRECTED); |
9caf0364 | 2826 | rcu_read_unlock(); |
a619a4c0 JO |
2827 | |
2828 | return skb; | |
2829 | } | |
2830 | EXPORT_SYMBOL(ieee80211_ap_probereq_get); | |
2831 | ||
a90faa9d EG |
2832 | static void ieee80211_report_disconnect(struct ieee80211_sub_if_data *sdata, |
2833 | const u8 *buf, size_t len, bool tx, | |
3f8a39ff | 2834 | u16 reason, bool reconnect) |
a90faa9d EG |
2835 | { |
2836 | struct ieee80211_event event = { | |
2837 | .type = MLME_EVENT, | |
2838 | .u.mlme.data = tx ? DEAUTH_TX_EVENT : DEAUTH_RX_EVENT, | |
2839 | .u.mlme.reason = reason, | |
2840 | }; | |
2841 | ||
2842 | if (tx) | |
3f8a39ff | 2843 | cfg80211_tx_mlme_mgmt(sdata->dev, buf, len, reconnect); |
a90faa9d EG |
2844 | else |
2845 | cfg80211_rx_mlme_mgmt(sdata->dev, buf, len); | |
2846 | ||
2847 | drv_event_callback(sdata->local, sdata, &event); | |
2848 | } | |
2849 | ||
eef9e54c | 2850 | static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) |
1e4dcd01 | 2851 | { |
59af6928 | 2852 | struct ieee80211_local *local = sdata->local; |
1e4dcd01 | 2853 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
6ae16775 | 2854 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
6c18b27d | 2855 | bool tx; |
1e4dcd01 | 2856 | |
8d61ffa5 | 2857 | sdata_lock(sdata); |
1e4dcd01 | 2858 | if (!ifmgd->associated) { |
8d61ffa5 | 2859 | sdata_unlock(sdata); |
1e4dcd01 JO |
2860 | return; |
2861 | } | |
2862 | ||
bfd8403a | 2863 | tx = !sdata->deflink.csa_block_tx; |
6c18b27d | 2864 | |
3f8a39ff JB |
2865 | if (!ifmgd->driver_disconnect) { |
2866 | /* | |
2867 | * AP is probably out of range (or not reachable for another | |
2868 | * reason) so remove the bss struct for that AP. | |
2869 | */ | |
bfd8403a | 2870 | cfg80211_unlink_bss(local->hw.wiphy, sdata->deflink.u.mgd.bss); |
3f8a39ff | 2871 | } |
20eb7ea9 | 2872 | |
37ad3888 | 2873 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
3f8a39ff JB |
2874 | ifmgd->driver_disconnect ? |
2875 | WLAN_REASON_DEAUTH_LEAVING : | |
2876 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, | |
6c18b27d | 2877 | tx, frame_buf); |
59af6928 | 2878 | mutex_lock(&local->mtx); |
d0a9123e | 2879 | sdata->vif.bss_conf.csa_active = false; |
bfd8403a JB |
2880 | sdata->deflink.u.mgd.csa_waiting_bcn = false; |
2881 | if (sdata->deflink.csa_block_tx) { | |
a46992b4 LC |
2882 | ieee80211_wake_vif_queues(local, sdata, |
2883 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
bfd8403a | 2884 | sdata->deflink.csa_block_tx = false; |
a46992b4 | 2885 | } |
59af6928 | 2886 | mutex_unlock(&local->mtx); |
7da7cc1d | 2887 | |
6c18b27d | 2888 | ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), tx, |
3f8a39ff JB |
2889 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, |
2890 | ifmgd->reconnect); | |
2891 | ifmgd->reconnect = false; | |
a90faa9d | 2892 | |
8d61ffa5 | 2893 | sdata_unlock(sdata); |
1e4dcd01 JO |
2894 | } |
2895 | ||
cc74c0c7 | 2896 | static void ieee80211_beacon_connection_loss_work(struct work_struct *work) |
b291ba11 JB |
2897 | { |
2898 | struct ieee80211_sub_if_data *sdata = | |
2899 | container_of(work, struct ieee80211_sub_if_data, | |
1e4dcd01 | 2900 | u.mgd.beacon_connection_loss_work); |
a85e1d55 | 2901 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
a85e1d55 | 2902 | |
682bd38b | 2903 | if (ifmgd->connection_loss) { |
882a7c69 | 2904 | sdata_info(sdata, "Connection to AP %pM lost\n", |
b65567b0 | 2905 | sdata->vif.cfg.ap_addr); |
eef9e54c | 2906 | __ieee80211_disconnect(sdata); |
3f8a39ff JB |
2907 | ifmgd->connection_loss = false; |
2908 | } else if (ifmgd->driver_disconnect) { | |
2909 | sdata_info(sdata, | |
2910 | "Driver requested disconnection from AP %pM\n", | |
b65567b0 | 2911 | sdata->vif.cfg.ap_addr); |
3f8a39ff JB |
2912 | __ieee80211_disconnect(sdata); |
2913 | ifmgd->driver_disconnect = false; | |
882a7c69 | 2914 | } else { |
5bd5666d JB |
2915 | if (ifmgd->associated) |
2916 | sdata->deflink.u.mgd.beacon_loss_count++; | |
1e4dcd01 | 2917 | ieee80211_mgd_probe_ap(sdata, true); |
882a7c69 JB |
2918 | } |
2919 | } | |
2920 | ||
2921 | static void ieee80211_csa_connection_drop_work(struct work_struct *work) | |
2922 | { | |
2923 | struct ieee80211_sub_if_data *sdata = | |
2924 | container_of(work, struct ieee80211_sub_if_data, | |
2925 | u.mgd.csa_connection_drop_work); | |
2926 | ||
eef9e54c | 2927 | __ieee80211_disconnect(sdata); |
b291ba11 JB |
2928 | } |
2929 | ||
04de8381 KV |
2930 | void ieee80211_beacon_loss(struct ieee80211_vif *vif) |
2931 | { | |
2932 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
1e4dcd01 | 2933 | struct ieee80211_hw *hw = &sdata->local->hw; |
04de8381 | 2934 | |
b5878a2d JB |
2935 | trace_api_beacon_loss(sdata); |
2936 | ||
682bd38b | 2937 | sdata->u.mgd.connection_loss = false; |
1e4dcd01 | 2938 | ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); |
04de8381 KV |
2939 | } |
2940 | EXPORT_SYMBOL(ieee80211_beacon_loss); | |
2941 | ||
1e4dcd01 JO |
2942 | void ieee80211_connection_loss(struct ieee80211_vif *vif) |
2943 | { | |
2944 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
2945 | struct ieee80211_hw *hw = &sdata->local->hw; | |
2946 | ||
b5878a2d JB |
2947 | trace_api_connection_loss(sdata); |
2948 | ||
682bd38b | 2949 | sdata->u.mgd.connection_loss = true; |
1e4dcd01 JO |
2950 | ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); |
2951 | } | |
2952 | EXPORT_SYMBOL(ieee80211_connection_loss); | |
2953 | ||
3f8a39ff JB |
2954 | void ieee80211_disconnect(struct ieee80211_vif *vif, bool reconnect) |
2955 | { | |
2956 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
2957 | struct ieee80211_hw *hw = &sdata->local->hw; | |
2958 | ||
2959 | trace_api_disconnect(sdata, reconnect); | |
2960 | ||
2961 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
2962 | return; | |
2963 | ||
2964 | sdata->u.mgd.driver_disconnect = true; | |
2965 | sdata->u.mgd.reconnect = reconnect; | |
2966 | ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work); | |
2967 | } | |
2968 | EXPORT_SYMBOL(ieee80211_disconnect); | |
1e4dcd01 | 2969 | |
66e67e41 JB |
2970 | static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, |
2971 | bool assoc) | |
2972 | { | |
2973 | struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data; | |
2974 | ||
8d61ffa5 | 2975 | sdata_assert_lock(sdata); |
66e67e41 | 2976 | |
66e67e41 | 2977 | if (!assoc) { |
c1e140bf EG |
2978 | /* |
2979 | * we are not authenticated yet, the only timer that could be | |
2980 | * running is the timeout for the authentication response which | |
2981 | * which is not relevant anymore. | |
2982 | */ | |
2983 | del_timer_sync(&sdata->u.mgd.timer); | |
66e67e41 JB |
2984 | sta_info_destroy_addr(sdata, auth_data->bss->bssid); |
2985 | ||
5bd5666d JB |
2986 | /* FIXME: other links are destroyed? */ |
2987 | sdata->deflink.u.mgd.conn_flags = 0; | |
bfd8403a | 2988 | eth_zero_addr(sdata->deflink.u.mgd.bssid); |
d8675a63 JB |
2989 | ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
2990 | BSS_CHANGED_BSSID); | |
028e8da0 | 2991 | sdata->u.mgd.flags = 0; |
34a3740d | 2992 | mutex_lock(&sdata->local->mtx); |
b4f85443 | 2993 | ieee80211_link_release_channel(&sdata->deflink); |
34a3740d | 2994 | mutex_unlock(&sdata->local->mtx); |
66e67e41 JB |
2995 | } |
2996 | ||
5b112d3d | 2997 | cfg80211_put_bss(sdata->local->hw.wiphy, auth_data->bss); |
66e67e41 JB |
2998 | kfree(auth_data); |
2999 | sdata->u.mgd.auth_data = NULL; | |
3000 | } | |
3001 | ||
afa2d659 JB |
3002 | enum assoc_status { |
3003 | ASSOC_SUCCESS, | |
3004 | ASSOC_REJECTED, | |
3005 | ASSOC_TIMEOUT, | |
3006 | ASSOC_ABANDON, | |
3007 | }; | |
3008 | ||
c9c99f89 | 3009 | static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata, |
afa2d659 | 3010 | enum assoc_status status) |
c9c99f89 JB |
3011 | { |
3012 | struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; | |
3013 | ||
3014 | sdata_assert_lock(sdata); | |
3015 | ||
afa2d659 | 3016 | if (status != ASSOC_SUCCESS) { |
c9c99f89 JB |
3017 | /* |
3018 | * we are not associated yet, the only timer that could be | |
3019 | * running is the timeout for the association response which | |
3020 | * which is not relevant anymore. | |
3021 | */ | |
3022 | del_timer_sync(&sdata->u.mgd.timer); | |
3023 | sta_info_destroy_addr(sdata, assoc_data->bss->bssid); | |
3024 | ||
5bd5666d JB |
3025 | /* FIXME: other links are destroyed? */ |
3026 | sdata->deflink.u.mgd.conn_flags = 0; | |
bfd8403a | 3027 | eth_zero_addr(sdata->deflink.u.mgd.bssid); |
d8675a63 JB |
3028 | ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
3029 | BSS_CHANGED_BSSID); | |
c9c99f89 | 3030 | sdata->u.mgd.flags = 0; |
d0a9123e | 3031 | sdata->vif.bss_conf.mu_mimo_owner = false; |
b5a33d52 | 3032 | |
c9c99f89 | 3033 | mutex_lock(&sdata->local->mtx); |
b4f85443 | 3034 | ieee80211_link_release_channel(&sdata->deflink); |
c9c99f89 | 3035 | mutex_unlock(&sdata->local->mtx); |
e6f462df | 3036 | |
afa2d659 | 3037 | if (status != ASSOC_REJECTED) { |
f662d2f4 JB |
3038 | struct cfg80211_assoc_failure data = { |
3039 | .bss[0] = assoc_data->bss, | |
afa2d659 | 3040 | .timeout = status == ASSOC_TIMEOUT, |
f662d2f4 JB |
3041 | }; |
3042 | ||
3043 | cfg80211_assoc_failure(sdata->dev, &data); | |
3044 | } | |
c9c99f89 JB |
3045 | } |
3046 | ||
3047 | kfree(assoc_data); | |
3048 | sdata->u.mgd.assoc_data = NULL; | |
3049 | } | |
3050 | ||
66e67e41 JB |
3051 | static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, |
3052 | struct ieee80211_mgmt *mgmt, size_t len) | |
3053 | { | |
1672c0e3 | 3054 | struct ieee80211_local *local = sdata->local; |
66e67e41 | 3055 | struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data; |
49a765d6 | 3056 | const struct element *challenge; |
66e67e41 | 3057 | u8 *pos; |
1672c0e3 | 3058 | u32 tx_flags = 0; |
15fae341 JB |
3059 | struct ieee80211_prep_tx_info info = { |
3060 | .subtype = IEEE80211_STYPE_AUTH, | |
3061 | }; | |
66e67e41 JB |
3062 | |
3063 | pos = mgmt->u.auth.variable; | |
49a765d6 JB |
3064 | challenge = cfg80211_find_elem(WLAN_EID_CHALLENGE, pos, |
3065 | len - (pos - (u8 *)mgmt)); | |
3066 | if (!challenge) | |
66e67e41 JB |
3067 | return; |
3068 | auth_data->expected_transaction = 4; | |
15fae341 | 3069 | drv_mgd_prepare_tx(sdata->local, sdata, &info); |
30686bf7 | 3070 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
1672c0e3 JB |
3071 | tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | |
3072 | IEEE80211_TX_INTFL_MLME_CONN_TX; | |
700e8ea6 | 3073 | ieee80211_send_auth(sdata, 3, auth_data->algorithm, 0, |
49a765d6 JB |
3074 | (void *)challenge, |
3075 | challenge->datalen + sizeof(*challenge), | |
66e67e41 JB |
3076 | auth_data->bss->bssid, auth_data->bss->bssid, |
3077 | auth_data->key, auth_data->key_len, | |
1672c0e3 | 3078 | auth_data->key_idx, tx_flags); |
66e67e41 JB |
3079 | } |
3080 | ||
fc107a93 | 3081 | static bool ieee80211_mark_sta_auth(struct ieee80211_sub_if_data *sdata, |
b65567b0 | 3082 | const u8 *ap_addr) |
fc107a93 | 3083 | { |
efb543e6 | 3084 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
fc107a93 | 3085 | struct sta_info *sta; |
33483a6b | 3086 | bool result = true; |
fc107a93 | 3087 | |
efb543e6 JM |
3088 | sdata_info(sdata, "authenticated\n"); |
3089 | ifmgd->auth_data->done = true; | |
3090 | ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC; | |
3091 | ifmgd->auth_data->timeout_started = true; | |
3092 | run_again(sdata, ifmgd->auth_data->timeout); | |
3093 | ||
fc107a93 JM |
3094 | /* move station state to auth */ |
3095 | mutex_lock(&sdata->local->sta_mtx); | |
b65567b0 | 3096 | sta = sta_info_get(sdata, ap_addr); |
fc107a93 | 3097 | if (!sta) { |
b65567b0 | 3098 | WARN_ONCE(1, "%s: STA %pM not found", sdata->name, ap_addr); |
33483a6b WY |
3099 | result = false; |
3100 | goto out; | |
fc107a93 JM |
3101 | } |
3102 | if (sta_info_move_state(sta, IEEE80211_STA_AUTH)) { | |
b65567b0 | 3103 | sdata_info(sdata, "failed moving %pM to auth\n", ap_addr); |
33483a6b WY |
3104 | result = false; |
3105 | goto out; | |
fc107a93 | 3106 | } |
fc107a93 | 3107 | |
33483a6b WY |
3108 | out: |
3109 | mutex_unlock(&sdata->local->sta_mtx); | |
3110 | return result; | |
fc107a93 JM |
3111 | } |
3112 | ||
8d61ffa5 JB |
3113 | static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, |
3114 | struct ieee80211_mgmt *mgmt, size_t len) | |
66e67e41 JB |
3115 | { |
3116 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
3117 | u8 bssid[ETH_ALEN]; | |
3118 | u16 auth_alg, auth_transaction, status_code; | |
a9409093 EG |
3119 | struct ieee80211_event event = { |
3120 | .type = MLME_EVENT, | |
3121 | .u.mlme.data = AUTH_EVENT, | |
3122 | }; | |
15fae341 JB |
3123 | struct ieee80211_prep_tx_info info = { |
3124 | .subtype = IEEE80211_STYPE_AUTH, | |
3125 | }; | |
66e67e41 | 3126 | |
8d61ffa5 | 3127 | sdata_assert_lock(sdata); |
66e67e41 JB |
3128 | |
3129 | if (len < 24 + 6) | |
8d61ffa5 | 3130 | return; |
66e67e41 JB |
3131 | |
3132 | if (!ifmgd->auth_data || ifmgd->auth_data->done) | |
8d61ffa5 | 3133 | return; |
66e67e41 JB |
3134 | |
3135 | memcpy(bssid, ifmgd->auth_data->bss->bssid, ETH_ALEN); | |
3136 | ||
b203ca39 | 3137 | if (!ether_addr_equal(bssid, mgmt->bssid)) |
8d61ffa5 | 3138 | return; |
66e67e41 JB |
3139 | |
3140 | auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg); | |
3141 | auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction); | |
3142 | status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
3143 | ||
3144 | if (auth_alg != ifmgd->auth_data->algorithm || | |
efb543e6 JM |
3145 | (auth_alg != WLAN_AUTH_SAE && |
3146 | auth_transaction != ifmgd->auth_data->expected_transaction) || | |
3147 | (auth_alg == WLAN_AUTH_SAE && | |
3148 | (auth_transaction < ifmgd->auth_data->expected_transaction || | |
3149 | auth_transaction > 2))) { | |
0f4126e8 JM |
3150 | sdata_info(sdata, "%pM unexpected authentication state: alg %d (expected %d) transact %d (expected %d)\n", |
3151 | mgmt->sa, auth_alg, ifmgd->auth_data->algorithm, | |
3152 | auth_transaction, | |
3153 | ifmgd->auth_data->expected_transaction); | |
15fae341 | 3154 | goto notify_driver; |
0f4126e8 | 3155 | } |
66e67e41 JB |
3156 | |
3157 | if (status_code != WLAN_STATUS_SUCCESS) { | |
a4055e74 AO |
3158 | cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); |
3159 | ||
3160 | if (auth_alg == WLAN_AUTH_SAE && | |
4e56cde1 JM |
3161 | (status_code == WLAN_STATUS_ANTI_CLOG_REQUIRED || |
3162 | (auth_transaction == 1 && | |
3163 | (status_code == WLAN_STATUS_SAE_HASH_TO_ELEMENT || | |
94d9864c JB |
3164 | status_code == WLAN_STATUS_SAE_PK)))) { |
3165 | /* waiting for userspace now */ | |
3166 | ifmgd->auth_data->waiting = true; | |
3167 | ifmgd->auth_data->timeout = | |
3168 | jiffies + IEEE80211_AUTH_WAIT_SAE_RETRY; | |
3169 | ifmgd->auth_data->timeout_started = true; | |
3170 | run_again(sdata, ifmgd->auth_data->timeout); | |
15fae341 | 3171 | goto notify_driver; |
94d9864c | 3172 | } |
a4055e74 | 3173 | |
bdcbd8e0 JB |
3174 | sdata_info(sdata, "%pM denied authentication (status %d)\n", |
3175 | mgmt->sa, status_code); | |
dac211ec | 3176 | ieee80211_destroy_auth_data(sdata, false); |
a9409093 EG |
3177 | event.u.mlme.status = MLME_DENIED; |
3178 | event.u.mlme.reason = status_code; | |
3179 | drv_event_callback(sdata->local, sdata, &event); | |
15fae341 | 3180 | goto notify_driver; |
66e67e41 JB |
3181 | } |
3182 | ||
3183 | switch (ifmgd->auth_data->algorithm) { | |
3184 | case WLAN_AUTH_OPEN: | |
3185 | case WLAN_AUTH_LEAP: | |
3186 | case WLAN_AUTH_FT: | |
6b8ece3a | 3187 | case WLAN_AUTH_SAE: |
dbc0c2cb JM |
3188 | case WLAN_AUTH_FILS_SK: |
3189 | case WLAN_AUTH_FILS_SK_PFS: | |
3190 | case WLAN_AUTH_FILS_PK: | |
66e67e41 JB |
3191 | break; |
3192 | case WLAN_AUTH_SHARED_KEY: | |
3193 | if (ifmgd->auth_data->expected_transaction != 4) { | |
3194 | ieee80211_auth_challenge(sdata, mgmt, len); | |
3195 | /* need another frame */ | |
8d61ffa5 | 3196 | return; |
66e67e41 JB |
3197 | } |
3198 | break; | |
3199 | default: | |
3200 | WARN_ONCE(1, "invalid auth alg %d", | |
3201 | ifmgd->auth_data->algorithm); | |
15fae341 | 3202 | goto notify_driver; |
66e67e41 JB |
3203 | } |
3204 | ||
a9409093 | 3205 | event.u.mlme.status = MLME_SUCCESS; |
15fae341 | 3206 | info.success = 1; |
a9409093 | 3207 | drv_event_callback(sdata->local, sdata, &event); |
efb543e6 JM |
3208 | if (ifmgd->auth_data->algorithm != WLAN_AUTH_SAE || |
3209 | (auth_transaction == 2 && | |
3210 | ifmgd->auth_data->expected_transaction == 2)) { | |
3211 | if (!ieee80211_mark_sta_auth(sdata, bssid)) | |
0daa63ed | 3212 | return; /* ignore frame -- wait for timeout */ |
efb543e6 JM |
3213 | } else if (ifmgd->auth_data->algorithm == WLAN_AUTH_SAE && |
3214 | auth_transaction == 2) { | |
3215 | sdata_info(sdata, "SAE peer confirmed\n"); | |
3216 | ifmgd->auth_data->peer_confirmed = true; | |
6b8ece3a JM |
3217 | } |
3218 | ||
6ff57cf8 | 3219 | cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); |
15fae341 JB |
3220 | notify_driver: |
3221 | drv_mgd_complete_tx(sdata->local, sdata, &info); | |
66e67e41 JB |
3222 | } |
3223 | ||
dfa1ad29 CO |
3224 | #define case_WLAN(type) \ |
3225 | case WLAN_REASON_##type: return #type | |
3226 | ||
79c92ca4 | 3227 | const char *ieee80211_get_reason_code_string(u16 reason_code) |
dfa1ad29 CO |
3228 | { |
3229 | switch (reason_code) { | |
3230 | case_WLAN(UNSPECIFIED); | |
3231 | case_WLAN(PREV_AUTH_NOT_VALID); | |
3232 | case_WLAN(DEAUTH_LEAVING); | |
3233 | case_WLAN(DISASSOC_DUE_TO_INACTIVITY); | |
3234 | case_WLAN(DISASSOC_AP_BUSY); | |
3235 | case_WLAN(CLASS2_FRAME_FROM_NONAUTH_STA); | |
3236 | case_WLAN(CLASS3_FRAME_FROM_NONASSOC_STA); | |
3237 | case_WLAN(DISASSOC_STA_HAS_LEFT); | |
3238 | case_WLAN(STA_REQ_ASSOC_WITHOUT_AUTH); | |
3239 | case_WLAN(DISASSOC_BAD_POWER); | |
3240 | case_WLAN(DISASSOC_BAD_SUPP_CHAN); | |
3241 | case_WLAN(INVALID_IE); | |
3242 | case_WLAN(MIC_FAILURE); | |
3243 | case_WLAN(4WAY_HANDSHAKE_TIMEOUT); | |
3244 | case_WLAN(GROUP_KEY_HANDSHAKE_TIMEOUT); | |
3245 | case_WLAN(IE_DIFFERENT); | |
3246 | case_WLAN(INVALID_GROUP_CIPHER); | |
3247 | case_WLAN(INVALID_PAIRWISE_CIPHER); | |
3248 | case_WLAN(INVALID_AKMP); | |
3249 | case_WLAN(UNSUPP_RSN_VERSION); | |
3250 | case_WLAN(INVALID_RSN_IE_CAP); | |
3251 | case_WLAN(IEEE8021X_FAILED); | |
3252 | case_WLAN(CIPHER_SUITE_REJECTED); | |
3253 | case_WLAN(DISASSOC_UNSPECIFIED_QOS); | |
3254 | case_WLAN(DISASSOC_QAP_NO_BANDWIDTH); | |
3255 | case_WLAN(DISASSOC_LOW_ACK); | |
3256 | case_WLAN(DISASSOC_QAP_EXCEED_TXOP); | |
3257 | case_WLAN(QSTA_LEAVE_QBSS); | |
3258 | case_WLAN(QSTA_NOT_USE); | |
3259 | case_WLAN(QSTA_REQUIRE_SETUP); | |
3260 | case_WLAN(QSTA_TIMEOUT); | |
3261 | case_WLAN(QSTA_CIPHER_NOT_SUPP); | |
3262 | case_WLAN(MESH_PEER_CANCELED); | |
3263 | case_WLAN(MESH_MAX_PEERS); | |
3264 | case_WLAN(MESH_CONFIG); | |
3265 | case_WLAN(MESH_CLOSE); | |
3266 | case_WLAN(MESH_MAX_RETRIES); | |
3267 | case_WLAN(MESH_CONFIRM_TIMEOUT); | |
3268 | case_WLAN(MESH_INVALID_GTK); | |
3269 | case_WLAN(MESH_INCONSISTENT_PARAM); | |
3270 | case_WLAN(MESH_INVALID_SECURITY); | |
3271 | case_WLAN(MESH_PATH_ERROR); | |
3272 | case_WLAN(MESH_PATH_NOFORWARD); | |
3273 | case_WLAN(MESH_PATH_DEST_UNREACHABLE); | |
3274 | case_WLAN(MAC_EXISTS_IN_MBSS); | |
3275 | case_WLAN(MESH_CHAN_REGULATORY); | |
3276 | case_WLAN(MESH_CHAN); | |
3277 | default: return "<unknown>"; | |
3278 | } | |
3279 | } | |
66e67e41 | 3280 | |
8d61ffa5 JB |
3281 | static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, |
3282 | struct ieee80211_mgmt *mgmt, size_t len) | |
f0706e82 | 3283 | { |
46900298 | 3284 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
c9c99f89 | 3285 | u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); |
f0706e82 | 3286 | |
8d61ffa5 | 3287 | sdata_assert_lock(sdata); |
66e67e41 | 3288 | |
f4ea83dd | 3289 | if (len < 24 + 2) |
8d61ffa5 | 3290 | return; |
f0706e82 | 3291 | |
79c92ca4 YW |
3292 | if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) { |
3293 | ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code); | |
3294 | return; | |
3295 | } | |
3296 | ||
c9c99f89 | 3297 | if (ifmgd->associated && |
bfd8403a JB |
3298 | ether_addr_equal(mgmt->bssid, sdata->deflink.u.mgd.bssid)) { |
3299 | const u8 *bssid = sdata->deflink.u.mgd.bssid; | |
77fdaa12 | 3300 | |
c9c99f89 JB |
3301 | sdata_info(sdata, "deauthenticated from %pM (Reason: %u=%s)\n", |
3302 | bssid, reason_code, | |
3303 | ieee80211_get_reason_code_string(reason_code)); | |
f0706e82 | 3304 | |
c9c99f89 | 3305 | ieee80211_set_disassoc(sdata, 0, 0, false, NULL); |
f0706e82 | 3306 | |
c9c99f89 | 3307 | ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, |
3f8a39ff | 3308 | reason_code, false); |
c9c99f89 JB |
3309 | return; |
3310 | } | |
77fdaa12 | 3311 | |
c9c99f89 JB |
3312 | if (ifmgd->assoc_data && |
3313 | ether_addr_equal(mgmt->bssid, ifmgd->assoc_data->bss->bssid)) { | |
3314 | const u8 *bssid = ifmgd->assoc_data->bss->bssid; | |
37ad3888 | 3315 | |
c9c99f89 JB |
3316 | sdata_info(sdata, |
3317 | "deauthenticated from %pM while associating (Reason: %u=%s)\n", | |
3318 | bssid, reason_code, | |
3319 | ieee80211_get_reason_code_string(reason_code)); | |
3320 | ||
afa2d659 | 3321 | ieee80211_destroy_assoc_data(sdata, ASSOC_ABANDON); |
c9c99f89 JB |
3322 | |
3323 | cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); | |
3324 | return; | |
3325 | } | |
f0706e82 JB |
3326 | } |
3327 | ||
3328 | ||
8d61ffa5 JB |
3329 | static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, |
3330 | struct ieee80211_mgmt *mgmt, size_t len) | |
f0706e82 | 3331 | { |
46900298 | 3332 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
f0706e82 JB |
3333 | u16 reason_code; |
3334 | ||
8d61ffa5 | 3335 | sdata_assert_lock(sdata); |
77fdaa12 | 3336 | |
66e67e41 | 3337 | if (len < 24 + 2) |
8d61ffa5 | 3338 | return; |
77fdaa12 | 3339 | |
66e67e41 | 3340 | if (!ifmgd->associated || |
bfd8403a | 3341 | !ether_addr_equal(mgmt->bssid, sdata->deflink.u.mgd.bssid)) |
8d61ffa5 | 3342 | return; |
f0706e82 JB |
3343 | |
3344 | reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); | |
3345 | ||
79c92ca4 YW |
3346 | if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) { |
3347 | ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code); | |
3348 | return; | |
3349 | } | |
3350 | ||
68506e9a AM |
3351 | sdata_info(sdata, "disassociated from %pM (Reason: %u=%s)\n", |
3352 | mgmt->sa, reason_code, | |
3353 | ieee80211_get_reason_code_string(reason_code)); | |
f0706e82 | 3354 | |
37ad3888 JB |
3355 | ieee80211_set_disassoc(sdata, 0, 0, false, NULL); |
3356 | ||
3f8a39ff JB |
3357 | ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, reason_code, |
3358 | false); | |
f0706e82 JB |
3359 | } |
3360 | ||
c74d084f CL |
3361 | static void ieee80211_get_rates(struct ieee80211_supported_band *sband, |
3362 | u8 *supp_rates, unsigned int supp_rates_len, | |
3363 | u32 *rates, u32 *basic_rates, | |
3364 | bool *have_higher_than_11mbit, | |
2103dec1 | 3365 | int *min_rate, int *min_rate_index, |
44f6d42c | 3366 | int shift) |
c74d084f CL |
3367 | { |
3368 | int i, j; | |
3369 | ||
3370 | for (i = 0; i < supp_rates_len; i++) { | |
2103dec1 | 3371 | int rate = supp_rates[i] & 0x7f; |
c74d084f CL |
3372 | bool is_basic = !!(supp_rates[i] & 0x80); |
3373 | ||
2103dec1 | 3374 | if ((rate * 5 * (1 << shift)) > 110) |
c74d084f CL |
3375 | *have_higher_than_11mbit = true; |
3376 | ||
3377 | /* | |
3598ae87 IP |
3378 | * Skip HT, VHT, HE and SAE H2E only BSS membership selectors |
3379 | * since they're not rates. | |
c74d084f | 3380 | * |
a6289d3f | 3381 | * Note: Even though the membership selector and the basic |
c74d084f CL |
3382 | * rate flag share the same bit, they are not exactly |
3383 | * the same. | |
3384 | */ | |
a6289d3f | 3385 | if (supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY) || |
4826e721 | 3386 | supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY) || |
3598ae87 IP |
3387 | supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_HE_PHY) || |
3388 | supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_SAE_H2E)) | |
c74d084f CL |
3389 | continue; |
3390 | ||
3391 | for (j = 0; j < sband->n_bitrates; j++) { | |
2103dec1 SW |
3392 | struct ieee80211_rate *br; |
3393 | int brate; | |
3394 | ||
3395 | br = &sband->bitrates[j]; | |
2103dec1 SW |
3396 | |
3397 | brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); | |
3398 | if (brate == rate) { | |
c74d084f CL |
3399 | *rates |= BIT(j); |
3400 | if (is_basic) | |
3401 | *basic_rates |= BIT(j); | |
2103dec1 SW |
3402 | if ((rate * 5) < *min_rate) { |
3403 | *min_rate = rate * 5; | |
c74d084f CL |
3404 | *min_rate_index = j; |
3405 | } | |
3406 | break; | |
3407 | } | |
3408 | } | |
3409 | } | |
3410 | } | |
f0706e82 | 3411 | |
98b0b467 | 3412 | static bool ieee80211_twt_req_supported(const struct link_sta_info *link_sta, |
55ebd6e6 EG |
3413 | const struct ieee802_11_elems *elems) |
3414 | { | |
3415 | if (elems->ext_capab_len < 10) | |
3416 | return false; | |
3417 | ||
3418 | if (!(elems->ext_capab[9] & WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT)) | |
3419 | return false; | |
3420 | ||
98b0b467 | 3421 | return link_sta->pub->he_cap.he_cap_elem.mac_cap_info[0] & |
55ebd6e6 EG |
3422 | IEEE80211_HE_MAC_CAP0_TWT_RES; |
3423 | } | |
3424 | ||
5bd5666d | 3425 | static int ieee80211_recalc_twt_req(struct ieee80211_link_data *link, |
98b0b467 | 3426 | struct link_sta_info *link_sta, |
c9d3245e JC |
3427 | struct ieee802_11_elems *elems) |
3428 | { | |
98b0b467 | 3429 | bool twt = ieee80211_twt_req_supported(link_sta, elems); |
c9d3245e | 3430 | |
5bd5666d JB |
3431 | if (link->conf->twt_requester != twt) { |
3432 | link->conf->twt_requester = twt; | |
c9d3245e JC |
3433 | return BSS_CHANGED_TWT; |
3434 | } | |
3435 | return 0; | |
3436 | } | |
3437 | ||
bac2fd3d JB |
3438 | static bool ieee80211_twt_bcast_support(struct ieee80211_sub_if_data *sdata, |
3439 | struct ieee80211_bss_conf *bss_conf, | |
d8b26154 | 3440 | struct ieee80211_supported_band *sband, |
98b0b467 | 3441 | struct link_sta_info *link_sta) |
d8b26154 ST |
3442 | { |
3443 | const struct ieee80211_sta_he_cap *own_he_cap = | |
bac2fd3d JB |
3444 | ieee80211_get_he_iftype_cap(sband, |
3445 | ieee80211_vif_type_p2p(&sdata->vif)); | |
d8b26154 ST |
3446 | |
3447 | return bss_conf->he_support && | |
98b0b467 | 3448 | (link_sta->pub->he_cap.he_cap_elem.mac_cap_info[2] & |
d8b26154 ST |
3449 | IEEE80211_HE_MAC_CAP2_BCAST_TWT) && |
3450 | own_he_cap && | |
3451 | (own_he_cap->he_cap_elem.mac_cap_info[2] & | |
3452 | IEEE80211_HE_MAC_CAP2_BCAST_TWT); | |
3453 | } | |
3454 | ||
66e67e41 JB |
3455 | static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, |
3456 | struct cfg80211_bss *cbss, | |
f61d7884 JB |
3457 | struct ieee80211_mgmt *mgmt, size_t len, |
3458 | struct ieee802_11_elems *elems) | |
f0706e82 | 3459 | { |
46900298 | 3460 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
471b3efd | 3461 | struct ieee80211_local *local = sdata->local; |
8318d78a | 3462 | struct ieee80211_supported_band *sband; |
98b0b467 | 3463 | struct link_sta_info *link_sta; |
f0706e82 | 3464 | struct sta_info *sta; |
af6b6374 | 3465 | u16 capab_info, aid; |
bda3933a | 3466 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; |
35d865af JB |
3467 | const struct cfg80211_bss_ies *bss_ies = NULL; |
3468 | struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; | |
57fa5e85 | 3469 | bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; |
1d00ce80 | 3470 | bool is_s1g = cbss->channel->band == NL80211_BAND_S1GHZ; |
5bd5666d | 3471 | struct ieee80211_link_data *link = &sdata->deflink; |
ae5eb026 | 3472 | u32 changed = 0; |
1d00ce80 | 3473 | u8 *pos; |
c74d084f | 3474 | int err; |
35d865af | 3475 | bool ret; |
f0706e82 | 3476 | |
af6b6374 | 3477 | /* AssocResp and ReassocResp have identical structure */ |
f0706e82 | 3478 | |
1d00ce80 | 3479 | pos = mgmt->u.assoc_resp.variable; |
f0706e82 | 3480 | aid = le16_to_cpu(mgmt->u.assoc_resp.aid); |
1d00ce80 TP |
3481 | if (is_s1g) { |
3482 | pos = (u8 *) mgmt->u.s1g_assoc_resp.variable; | |
3483 | aid = 0; /* TODO */ | |
3484 | } | |
af6b6374 | 3485 | capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); |
5d24828d JB |
3486 | elems = ieee802_11_parse_elems(pos, len - (pos - (u8 *)mgmt), false, |
3487 | mgmt->bssid, assoc_data->bss->bssid); | |
3488 | ||
3489 | if (!elems) | |
3490 | return false; | |
1d00ce80 TP |
3491 | |
3492 | if (elems->aid_resp) | |
3493 | aid = le16_to_cpu(elems->aid_resp->aid); | |
f0706e82 | 3494 | |
c7c477b5 JB |
3495 | /* |
3496 | * The 5 MSB of the AID field are reserved | |
3497 | * (802.11-2016 9.4.1.8 AID field) | |
3498 | */ | |
3499 | aid &= 0x7ff; | |
1dd84aa2 | 3500 | |
05cb9108 JB |
3501 | ifmgd->broken_ap = false; |
3502 | ||
3503 | if (aid == 0 || aid > IEEE80211_MAX_AID) { | |
bdcbd8e0 JB |
3504 | sdata_info(sdata, "invalid AID value %d (out of range), turn off PS\n", |
3505 | aid); | |
05cb9108 JB |
3506 | aid = 0; |
3507 | ifmgd->broken_ap = true; | |
3508 | } | |
3509 | ||
1d00ce80 | 3510 | if (!is_s1g && !elems->supp_rates) { |
bdcbd8e0 | 3511 | sdata_info(sdata, "no SuppRates element in AssocResp\n"); |
5d24828d JB |
3512 | ret = false; |
3513 | goto out; | |
f0706e82 JB |
3514 | } |
3515 | ||
f276e20b | 3516 | sdata->vif.cfg.aid = aid; |
9041c1fa | 3517 | ifmgd->tdls_chan_switch_prohibited = |
f61d7884 JB |
3518 | elems->ext_capab && elems->ext_capab_len >= 5 && |
3519 | (elems->ext_capab[4] & WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED); | |
f0706e82 | 3520 | |
35d865af JB |
3521 | /* |
3522 | * Some APs are erroneously not including some information in their | |
3523 | * (re)association response frames. Try to recover by using the data | |
3524 | * from the beacon or probe response. This seems to afflict mobile | |
3525 | * 2G/3G/4G wifi routers, reported models include the "Onda PN51T", | |
3526 | * "Vodafone PocketWiFi 2", "ZTE MF60" and a similar T-Mobile device. | |
3527 | */ | |
57fa5e85 JB |
3528 | if (!is_6ghz && |
3529 | ((assoc_data->wmm && !elems->wmm_param) || | |
5bd5666d | 3530 | (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT) && |
57fa5e85 | 3531 | (!elems->ht_cap_elem || !elems->ht_operation)) || |
5bd5666d | 3532 | (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) && |
57fa5e85 | 3533 | (!elems->vht_cap_elem || !elems->vht_operation)))) { |
35d865af | 3534 | const struct cfg80211_bss_ies *ies; |
5d24828d | 3535 | struct ieee802_11_elems *bss_elems; |
35d865af JB |
3536 | |
3537 | rcu_read_lock(); | |
3538 | ies = rcu_dereference(cbss->ies); | |
3539 | if (ies) | |
3540 | bss_ies = kmemdup(ies, sizeof(*ies) + ies->len, | |
3541 | GFP_ATOMIC); | |
3542 | rcu_read_unlock(); | |
8223ac19 JB |
3543 | if (!bss_ies) { |
3544 | ret = false; | |
3545 | goto out; | |
3546 | } | |
35d865af | 3547 | |
5d24828d JB |
3548 | bss_elems = ieee802_11_parse_elems(bss_ies->data, bss_ies->len, |
3549 | false, mgmt->bssid, | |
3550 | assoc_data->bss->bssid); | |
3551 | if (!bss_elems) { | |
3552 | ret = false; | |
3553 | goto out; | |
3554 | } | |
3555 | ||
35d865af | 3556 | if (assoc_data->wmm && |
5d24828d JB |
3557 | !elems->wmm_param && bss_elems->wmm_param) { |
3558 | elems->wmm_param = bss_elems->wmm_param; | |
35d865af JB |
3559 | sdata_info(sdata, |
3560 | "AP bug: WMM param missing from AssocResp\n"); | |
3561 | } | |
3562 | ||
3563 | /* | |
3564 | * Also check if we requested HT/VHT, otherwise the AP doesn't | |
3565 | * have to include the IEs in the (re)association response. | |
3566 | */ | |
5d24828d | 3567 | if (!elems->ht_cap_elem && bss_elems->ht_cap_elem && |
5bd5666d | 3568 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) { |
5d24828d | 3569 | elems->ht_cap_elem = bss_elems->ht_cap_elem; |
35d865af JB |
3570 | sdata_info(sdata, |
3571 | "AP bug: HT capability missing from AssocResp\n"); | |
3572 | } | |
5d24828d | 3573 | if (!elems->ht_operation && bss_elems->ht_operation && |
5bd5666d | 3574 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) { |
5d24828d | 3575 | elems->ht_operation = bss_elems->ht_operation; |
35d865af JB |
3576 | sdata_info(sdata, |
3577 | "AP bug: HT operation missing from AssocResp\n"); | |
3578 | } | |
5d24828d | 3579 | if (!elems->vht_cap_elem && bss_elems->vht_cap_elem && |
5bd5666d | 3580 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) { |
5d24828d | 3581 | elems->vht_cap_elem = bss_elems->vht_cap_elem; |
35d865af JB |
3582 | sdata_info(sdata, |
3583 | "AP bug: VHT capa missing from AssocResp\n"); | |
3584 | } | |
5d24828d | 3585 | if (!elems->vht_operation && bss_elems->vht_operation && |
5bd5666d | 3586 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) { |
5d24828d | 3587 | elems->vht_operation = bss_elems->vht_operation; |
35d865af JB |
3588 | sdata_info(sdata, |
3589 | "AP bug: VHT operation missing from AssocResp\n"); | |
3590 | } | |
5d24828d JB |
3591 | |
3592 | kfree(bss_elems); | |
35d865af JB |
3593 | } |
3594 | ||
30eb1dc2 JB |
3595 | /* |
3596 | * We previously checked these in the beacon/probe response, so | |
3597 | * they should be present here. This is just a safety net. | |
3598 | */ | |
5bd5666d | 3599 | if (!is_6ghz && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT) && |
f61d7884 | 3600 | (!elems->wmm_param || !elems->ht_cap_elem || !elems->ht_operation)) { |
30eb1dc2 | 3601 | sdata_info(sdata, |
35d865af JB |
3602 | "HT AP is missing WMM params or HT capability/operation\n"); |
3603 | ret = false; | |
3604 | goto out; | |
30eb1dc2 JB |
3605 | } |
3606 | ||
5bd5666d | 3607 | if (!is_6ghz && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) && |
f61d7884 | 3608 | (!elems->vht_cap_elem || !elems->vht_operation)) { |
30eb1dc2 | 3609 | sdata_info(sdata, |
35d865af JB |
3610 | "VHT AP is missing VHT capability/operation\n"); |
3611 | ret = false; | |
3612 | goto out; | |
30eb1dc2 JB |
3613 | } |
3614 | ||
5bd5666d | 3615 | if (is_6ghz && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && |
57fa5e85 JB |
3616 | !elems->he_6ghz_capa) { |
3617 | sdata_info(sdata, | |
3618 | "HE 6 GHz AP is missing HE 6 GHz band capability\n"); | |
3619 | ret = false; | |
3620 | goto out; | |
3621 | } | |
3622 | ||
2a33bee2 GE |
3623 | mutex_lock(&sdata->local->sta_mtx); |
3624 | /* | |
3625 | * station info was already allocated and inserted before | |
3626 | * the association and should be available to us | |
3627 | */ | |
7852e361 | 3628 | sta = sta_info_get(sdata, cbss->bssid); |
2a33bee2 GE |
3629 | if (WARN_ON(!sta)) { |
3630 | mutex_unlock(&sdata->local->sta_mtx); | |
35d865af JB |
3631 | ret = false; |
3632 | goto out; | |
77fdaa12 | 3633 | } |
05e5e883 | 3634 | |
98b0b467 JB |
3635 | link_sta = rcu_dereference_protected(sta->link[link->link_id], |
3636 | lockdep_is_held(&local->sta_mtx)); | |
3637 | if (WARN_ON(!link_sta)) { | |
3638 | mutex_unlock(&sdata->local->sta_mtx); | |
3639 | ret = false; | |
3640 | goto out; | |
3641 | } | |
3642 | ||
1dd0f31c | 3643 | sband = ieee80211_get_link_sband(link); |
21a8e9dd MSS |
3644 | if (!sband) { |
3645 | mutex_unlock(&sdata->local->sta_mtx); | |
3646 | ret = false; | |
3647 | goto out; | |
3648 | } | |
f709fc69 | 3649 | |
5bd5666d | 3650 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && |
f61d7884 | 3651 | (!elems->he_cap || !elems->he_operation)) { |
41cbb0f5 LC |
3652 | mutex_unlock(&sdata->local->sta_mtx); |
3653 | sdata_info(sdata, | |
3654 | "HE AP is missing HE capability/operation\n"); | |
3655 | ret = false; | |
3656 | goto out; | |
3657 | } | |
3658 | ||
30eb1dc2 | 3659 | /* Set up internal HT/VHT capabilities */ |
5bd5666d | 3660 | if (elems->ht_cap_elem && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) |
ef96a842 | 3661 | ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, |
c71420db | 3662 | elems->ht_cap_elem, |
98b0b467 | 3663 | link_sta); |
64f68e5d | 3664 | |
5bd5666d | 3665 | if (elems->vht_cap_elem && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) |
818255ea | 3666 | ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, |
afe0d181 | 3667 | elems->vht_cap_elem, |
98b0b467 | 3668 | link_sta); |
818255ea | 3669 | |
5bd5666d | 3670 | if (elems->he_operation && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && |
f61d7884 | 3671 | elems->he_cap) { |
41cbb0f5 | 3672 | ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, |
f61d7884 JB |
3673 | elems->he_cap, |
3674 | elems->he_cap_len, | |
1bb9a8a4 | 3675 | elems->he_6ghz_capa, |
98b0b467 | 3676 | link_sta); |
41cbb0f5 | 3677 | |
98b0b467 | 3678 | bss_conf->he_support = link_sta->pub->he_cap.has_he; |
d46b4ab8 ST |
3679 | if (elems->rsnx && elems->rsnx_len && |
3680 | (elems->rsnx[0] & WLAN_RSNX_CAPA_PROTECTED_TWT) && | |
3681 | wiphy_ext_feature_isset(local->hw.wiphy, | |
3682 | NL80211_EXT_FEATURE_PROTECTED_TWT)) | |
3683 | bss_conf->twt_protected = true; | |
3684 | else | |
3685 | bss_conf->twt_protected = false; | |
3686 | ||
98b0b467 | 3687 | changed |= ieee80211_recalc_twt_req(link, link_sta, elems); |
a1de6407 IP |
3688 | |
3689 | if (elems->eht_operation && elems->eht_cap && | |
5bd5666d | 3690 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT)) { |
a1de6407 IP |
3691 | ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, |
3692 | elems->he_cap, | |
3693 | elems->he_cap_len, | |
3694 | elems->eht_cap, | |
3695 | elems->eht_cap_len, | |
98b0b467 | 3696 | link_sta); |
a1de6407 | 3697 | |
98b0b467 | 3698 | bss_conf->eht_support = link_sta->pub->eht_cap.has_eht; |
a1de6407 IP |
3699 | } else { |
3700 | bss_conf->eht_support = false; | |
3701 | } | |
41cbb0f5 LC |
3702 | } else { |
3703 | bss_conf->he_support = false; | |
55ebd6e6 | 3704 | bss_conf->twt_requester = false; |
d46b4ab8 | 3705 | bss_conf->twt_protected = false; |
a1de6407 | 3706 | bss_conf->eht_support = false; |
41cbb0f5 LC |
3707 | } |
3708 | ||
d8b26154 | 3709 | bss_conf->twt_broadcast = |
98b0b467 | 3710 | ieee80211_twt_bcast_support(sdata, bss_conf, sband, link_sta); |
d8b26154 | 3711 | |
41cbb0f5 | 3712 | if (bss_conf->he_support) { |
dd56e902 | 3713 | bss_conf->he_bss_color.color = |
f61d7884 | 3714 | le32_get_bits(elems->he_operation->he_oper_params, |
77cbbc35 | 3715 | IEEE80211_HE_OPERATION_BSS_COLOR_MASK); |
dd56e902 JC |
3716 | bss_conf->he_bss_color.partial = |
3717 | le32_get_bits(elems->he_operation->he_oper_params, | |
3718 | IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR); | |
75e6b594 JB |
3719 | bss_conf->he_bss_color.enabled = |
3720 | !le32_get_bits(elems->he_operation->he_oper_params, | |
3721 | IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); | |
322cd27c | 3722 | |
75e6b594 | 3723 | if (bss_conf->he_bss_color.enabled) |
322cd27c | 3724 | changed |= BSS_CHANGED_HE_BSS_COLOR; |
41cbb0f5 | 3725 | |
41cbb0f5 | 3726 | bss_conf->htc_trig_based_pkt_ext = |
f61d7884 | 3727 | le32_get_bits(elems->he_operation->he_oper_params, |
77cbbc35 | 3728 | IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); |
41cbb0f5 | 3729 | bss_conf->frame_time_rts_th = |
f61d7884 | 3730 | le32_get_bits(elems->he_operation->he_oper_params, |
77cbbc35 | 3731 | IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); |
41cbb0f5 | 3732 | |
f61d7884 JB |
3733 | bss_conf->uora_exists = !!elems->uora_element; |
3734 | if (elems->uora_element) | |
3735 | bss_conf->uora_ocw_range = elems->uora_element[0]; | |
41cbb0f5 | 3736 | |
f61d7884 JB |
3737 | ieee80211_he_op_ie_to_bss_conf(&sdata->vif, elems->he_operation); |
3738 | ieee80211_he_spr_ie_to_bss_conf(&sdata->vif, elems->he_spr); | |
41cbb0f5 LC |
3739 | /* TODO: OPEN: what happens if BSS color disable is set? */ |
3740 | } | |
3741 | ||
78ac51f8 SS |
3742 | if (cbss->transmitted_bss) { |
3743 | bss_conf->nontransmitted = true; | |
3744 | ether_addr_copy(bss_conf->transmitter_bssid, | |
3745 | cbss->transmitted_bss->bssid); | |
3746 | bss_conf->bssid_indicator = cbss->max_bssid_indicator; | |
3747 | bss_conf->bssid_index = cbss->bssid_index; | |
86af062f MP |
3748 | } else { |
3749 | bss_conf->nontransmitted = false; | |
3750 | memset(bss_conf->transmitter_bssid, 0, | |
3751 | sizeof(bss_conf->transmitter_bssid)); | |
3752 | bss_conf->bssid_indicator = 0; | |
3753 | bss_conf->bssid_index = 0; | |
78ac51f8 SS |
3754 | } |
3755 | ||
30eb1dc2 JB |
3756 | /* |
3757 | * Some APs, e.g. Netgear WNDR3700, report invalid HT operation data | |
3758 | * in their association response, so ignore that data for our own | |
3759 | * configuration. If it changed since the last beacon, we'll get the | |
3760 | * next beacon and update then. | |
3761 | */ | |
1128958d | 3762 | |
bee7f586 JB |
3763 | /* |
3764 | * If an operating mode notification IE is present, override the | |
3765 | * NSS calculation (that would be done in rate_control_rate_init()) | |
3766 | * and use the # of streams from that element. | |
3767 | */ | |
f61d7884 JB |
3768 | if (elems->opmode_notif && |
3769 | !(*elems->opmode_notif & IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF)) { | |
bee7f586 JB |
3770 | u8 nss; |
3771 | ||
f61d7884 | 3772 | nss = *elems->opmode_notif & IEEE80211_OPMODE_NOTIF_RX_NSS_MASK; |
bee7f586 JB |
3773 | nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT; |
3774 | nss += 1; | |
98b0b467 | 3775 | link_sta->pub->rx_nss = nss; |
bee7f586 JB |
3776 | } |
3777 | ||
4b7679a5 | 3778 | rate_control_rate_init(sta); |
f0706e82 | 3779 | |
93f0490e | 3780 | if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED) { |
c2c98fde | 3781 | set_sta_flag(sta, WLAN_STA_MFP); |
93f0490e T |
3782 | sta->sta.mfp = true; |
3783 | } else { | |
3784 | sta->sta.mfp = false; | |
3785 | } | |
5394af4d | 3786 | |
1d00ce80 TP |
3787 | sta->sta.wme = (elems->wmm_param || elems->s1g_capab) && |
3788 | local->hw.queues >= IEEE80211_NUM_ACS; | |
ddf4ac53 | 3789 | |
3e4d40fa | 3790 | err = sta_info_move_state(sta, IEEE80211_STA_ASSOC); |
c8987876 JB |
3791 | if (!err && !(ifmgd->flags & IEEE80211_STA_CONTROL_PORT)) |
3792 | err = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); | |
3793 | if (err) { | |
bdcbd8e0 JB |
3794 | sdata_info(sdata, |
3795 | "failed to move station %pM to desired state\n", | |
3796 | sta->sta.addr); | |
c8987876 JB |
3797 | WARN_ON(__sta_info_destroy(sta)); |
3798 | mutex_unlock(&sdata->local->sta_mtx); | |
35d865af JB |
3799 | ret = false; |
3800 | goto out; | |
c8987876 JB |
3801 | } |
3802 | ||
1ff4e8f2 FF |
3803 | if (sdata->wdev.use_4addr) |
3804 | drv_sta_set_4addr(local, sdata, &sta->sta, true); | |
3805 | ||
7852e361 | 3806 | mutex_unlock(&sdata->local->sta_mtx); |
ddf4ac53 | 3807 | |
f2176d72 JO |
3808 | /* |
3809 | * Always handle WMM once after association regardless | |
3810 | * of the first value the AP uses. Setting -1 here has | |
3811 | * that effect because the AP values is an unsigned | |
3812 | * 4-bit value. | |
3813 | */ | |
5bd5666d JB |
3814 | link->u.mgd.wmm_last_param_set = -1; |
3815 | link->u.mgd.mu_edca_last_param_set = -1; | |
f2176d72 | 3816 | |
6359598d | 3817 | if (link->u.mgd.disable_wmm_tracking) { |
5bd5666d JB |
3818 | ieee80211_set_wmm_default(link, false, false); |
3819 | } else if (!ieee80211_sta_wmm_params(local, link, elems->wmm_param, | |
f61d7884 JB |
3820 | elems->wmm_param_len, |
3821 | elems->mu_edca_param_set)) { | |
2ed77ea6 | 3822 | /* still enable QoS since we might have HT/VHT */ |
5bd5666d | 3823 | ieee80211_set_wmm_default(link, false, true); |
6359598d | 3824 | /* disable WMM tracking in this case to disable |
2ed77ea6 JB |
3825 | * tracking WMM parameter changes in the beacon if |
3826 | * the parameters weren't actually valid. Doing so | |
3827 | * avoids changing parameters very strangely when | |
3828 | * the AP is going back and forth between valid and | |
3829 | * invalid parameters. | |
3830 | */ | |
6359598d | 3831 | link->u.mgd.disable_wmm_tracking = true; |
2ed77ea6 | 3832 | } |
3abead59 | 3833 | changed |= BSS_CHANGED_QOS; |
f0706e82 | 3834 | |
f61d7884 | 3835 | if (elems->max_idle_period_ie) { |
e38a017b | 3836 | bss_conf->max_idle_period = |
f61d7884 | 3837 | le16_to_cpu(elems->max_idle_period_ie->max_idle_period); |
e38a017b | 3838 | bss_conf->protected_keep_alive = |
f61d7884 | 3839 | !!(elems->max_idle_period_ie->idle_options & |
e38a017b AS |
3840 | WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE); |
3841 | changed |= BSS_CHANGED_KEEP_ALIVE; | |
3842 | } else { | |
3843 | bss_conf->max_idle_period = 0; | |
3844 | bss_conf->protected_keep_alive = false; | |
3845 | } | |
3846 | ||
1db364c8 | 3847 | /* set assoc capability (AID was already set earlier), |
60f8b39c | 3848 | * ieee80211_set_associated() will tell the driver */ |
60f8b39c | 3849 | bss_conf->assoc_capability = capab_info; |
0c1ad2ca | 3850 | ieee80211_set_associated(sdata, cbss, changed); |
f0706e82 | 3851 | |
d524215f FF |
3852 | /* |
3853 | * If we're using 4-addr mode, let the AP know that we're | |
3854 | * doing so, so that it can create the STA VLAN on its side | |
3855 | */ | |
3856 | if (ifmgd->use_4addr) | |
3857 | ieee80211_send_4addr_nullfunc(local, sdata); | |
3858 | ||
15b7b062 | 3859 | /* |
b291ba11 JB |
3860 | * Start timer to probe the connection to the AP now. |
3861 | * Also start the timer that will detect beacon loss. | |
15b7b062 | 3862 | */ |
d3a910a8 | 3863 | ieee80211_sta_reset_beacon_monitor(sdata); |
9abf4e49 | 3864 | ieee80211_sta_reset_conn_monitor(sdata); |
15b7b062 | 3865 | |
35d865af JB |
3866 | ret = true; |
3867 | out: | |
5d24828d | 3868 | kfree(elems); |
35d865af JB |
3869 | kfree(bss_ies); |
3870 | return ret; | |
f0706e82 JB |
3871 | } |
3872 | ||
8d61ffa5 JB |
3873 | static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, |
3874 | struct ieee80211_mgmt *mgmt, | |
3875 | size_t len) | |
66e67e41 JB |
3876 | { |
3877 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
3878 | struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; | |
3879 | u16 capab_info, status_code, aid; | |
5d24828d | 3880 | struct ieee802_11_elems *elems; |
cd47c0f5 | 3881 | int ac; |
66e67e41 JB |
3882 | u8 *pos; |
3883 | bool reassoc; | |
1d00ce80 | 3884 | struct cfg80211_bss *cbss; |
d0d1a12f EG |
3885 | struct ieee80211_event event = { |
3886 | .type = MLME_EVENT, | |
3887 | .u.mlme.data = ASSOC_EVENT, | |
3888 | }; | |
15fae341 | 3889 | struct ieee80211_prep_tx_info info = {}; |
cd47c0f5 JB |
3890 | struct cfg80211_rx_assoc_resp resp = { |
3891 | .uapsd_queues = -1, | |
3892 | }; | |
66e67e41 | 3893 | |
8d61ffa5 | 3894 | sdata_assert_lock(sdata); |
66e67e41 JB |
3895 | |
3896 | if (!assoc_data) | |
8d61ffa5 | 3897 | return; |
1d00ce80 | 3898 | |
b203ca39 | 3899 | if (!ether_addr_equal(assoc_data->bss->bssid, mgmt->bssid)) |
8d61ffa5 | 3900 | return; |
66e67e41 | 3901 | |
1d00ce80 TP |
3902 | cbss = assoc_data->bss; |
3903 | ||
66e67e41 JB |
3904 | /* |
3905 | * AssocResp and ReassocResp have identical structure, so process both | |
3906 | * of them in this function. | |
3907 | */ | |
3908 | ||
3909 | if (len < 24 + 6) | |
8d61ffa5 | 3910 | return; |
66e67e41 | 3911 | |
7a7d3e4c | 3912 | reassoc = ieee80211_is_reassoc_resp(mgmt->frame_control); |
66e67e41 JB |
3913 | capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); |
3914 | status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); | |
1d00ce80 | 3915 | pos = mgmt->u.assoc_resp.variable; |
66e67e41 | 3916 | aid = le16_to_cpu(mgmt->u.assoc_resp.aid); |
1d00ce80 TP |
3917 | if (cbss->channel->band == NL80211_BAND_S1GHZ) { |
3918 | pos = (u8 *) mgmt->u.s1g_assoc_resp.variable; | |
3919 | aid = 0; /* TODO */ | |
3920 | } | |
66e67e41 | 3921 | |
15fae341 JB |
3922 | /* |
3923 | * Note: this may not be perfect, AP might misbehave - if | |
3924 | * anyone needs to rely on perfect complete notification | |
3925 | * with the exact right subtype, then we need to track what | |
3926 | * we actually transmitted. | |
3927 | */ | |
3928 | info.subtype = reassoc ? IEEE80211_STYPE_REASSOC_REQ : | |
3929 | IEEE80211_STYPE_ASSOC_REQ; | |
3930 | ||
bdcbd8e0 JB |
3931 | sdata_info(sdata, |
3932 | "RX %sssocResp from %pM (capab=0x%x status=%d aid=%d)\n", | |
3933 | reassoc ? "Rea" : "A", mgmt->sa, | |
3934 | capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); | |
66e67e41 | 3935 | |
39404fee JM |
3936 | if (assoc_data->fils_kek_len && |
3937 | fils_decrypt_assoc_resp(sdata, (u8 *)mgmt, &len, assoc_data) < 0) | |
3938 | return; | |
3939 | ||
5d24828d JB |
3940 | elems = ieee802_11_parse_elems(pos, len - (pos - (u8 *)mgmt), false, |
3941 | mgmt->bssid, assoc_data->bss->bssid); | |
3942 | if (!elems) | |
3943 | goto notify_driver; | |
66e67e41 JB |
3944 | |
3945 | if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY && | |
5d24828d JB |
3946 | elems->timeout_int && |
3947 | elems->timeout_int->type == WLAN_TIMEOUT_ASSOC_COMEBACK) { | |
66e67e41 | 3948 | u32 tu, ms; |
852a07c1 | 3949 | |
e69dac88 | 3950 | cfg80211_assoc_comeback(sdata->dev, assoc_data->bss->bssid, |
852a07c1 IP |
3951 | le32_to_cpu(elems->timeout_int->value)); |
3952 | ||
5d24828d | 3953 | tu = le32_to_cpu(elems->timeout_int->value); |
66e67e41 | 3954 | ms = tu * 1024 / 1000; |
bdcbd8e0 JB |
3955 | sdata_info(sdata, |
3956 | "%pM rejected association temporarily; comeback duration %u TU (%u ms)\n", | |
3957 | mgmt->sa, tu, ms); | |
66e67e41 | 3958 | assoc_data->timeout = jiffies + msecs_to_jiffies(ms); |
89afe614 | 3959 | assoc_data->timeout_started = true; |
66e67e41 | 3960 | if (ms > IEEE80211_ASSOC_TIMEOUT) |
8d61ffa5 | 3961 | run_again(sdata, assoc_data->timeout); |
15fae341 | 3962 | goto notify_driver; |
66e67e41 JB |
3963 | } |
3964 | ||
66e67e41 | 3965 | if (status_code != WLAN_STATUS_SUCCESS) { |
bdcbd8e0 JB |
3966 | sdata_info(sdata, "%pM denied association (code=%d)\n", |
3967 | mgmt->sa, status_code); | |
afa2d659 | 3968 | ieee80211_destroy_assoc_data(sdata, ASSOC_REJECTED); |
d0d1a12f EG |
3969 | event.u.mlme.status = MLME_DENIED; |
3970 | event.u.mlme.reason = status_code; | |
3971 | drv_event_callback(sdata->local, sdata, &event); | |
66e67e41 | 3972 | } else { |
5d24828d | 3973 | if (!ieee80211_assoc_success(sdata, cbss, mgmt, len, elems)) { |
66e67e41 | 3974 | /* oops -- internal error -- send timeout for now */ |
afa2d659 | 3975 | ieee80211_destroy_assoc_data(sdata, ASSOC_TIMEOUT); |
15fae341 | 3976 | goto notify_driver; |
66e67e41 | 3977 | } |
d0d1a12f EG |
3978 | event.u.mlme.status = MLME_SUCCESS; |
3979 | drv_event_callback(sdata->local, sdata, &event); | |
635d999f | 3980 | sdata_info(sdata, "associated\n"); |
79ebfb85 JB |
3981 | |
3982 | /* | |
3983 | * destroy assoc_data afterwards, as otherwise an idle | |
3984 | * recalc after assoc_data is NULL but before associated | |
3985 | * is set can cause the interface to go idle | |
3986 | */ | |
afa2d659 | 3987 | ieee80211_destroy_assoc_data(sdata, ASSOC_SUCCESS); |
b0b6aa2c EP |
3988 | |
3989 | /* get uapsd queues configuration */ | |
cd47c0f5 | 3990 | resp.uapsd_queues = 0; |
b0b6aa2c | 3991 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) |
b3e2130b | 3992 | if (sdata->deflink.tx_conf[ac].uapsd) |
cd47c0f5 | 3993 | resp.uapsd_queues |= ieee80211_ac_to_qos_mask[ac]; |
15fae341 JB |
3994 | |
3995 | info.success = 1; | |
66e67e41 JB |
3996 | } |
3997 | ||
5cd212cb | 3998 | resp.links[0].bss = cbss; |
cd47c0f5 JB |
3999 | resp.buf = (u8 *)mgmt; |
4000 | resp.len = len; | |
4001 | resp.req_ies = ifmgd->assoc_req_ies; | |
4002 | resp.req_ies_len = ifmgd->assoc_req_ies_len; | |
4003 | cfg80211_rx_assoc_resp(sdata->dev, &resp); | |
15fae341 JB |
4004 | notify_driver: |
4005 | drv_mgd_complete_tx(sdata->local, sdata, &info); | |
5d24828d | 4006 | kfree(elems); |
66e67e41 | 4007 | } |
8e3c1b77 | 4008 | |
5bd5666d | 4009 | static void ieee80211_rx_bss_info(struct ieee80211_link_data *link, |
8e3c1b77 | 4010 | struct ieee80211_mgmt *mgmt, size_t len, |
4abb52a4 | 4011 | struct ieee80211_rx_status *rx_status) |
98c8fccf | 4012 | { |
5bd5666d | 4013 | struct ieee80211_sub_if_data *sdata = link->sdata; |
98c8fccf | 4014 | struct ieee80211_local *local = sdata->local; |
c2b13452 | 4015 | struct ieee80211_bss *bss; |
98c8fccf | 4016 | struct ieee80211_channel *channel; |
56007a02 | 4017 | |
8d61ffa5 | 4018 | sdata_assert_lock(sdata); |
b4f286a1 | 4019 | |
3b23c184 TP |
4020 | channel = ieee80211_get_channel_khz(local->hw.wiphy, |
4021 | ieee80211_rx_status_to_khz(rx_status)); | |
3afc2167 | 4022 | if (!channel) |
98c8fccf JB |
4023 | return; |
4024 | ||
4abb52a4 | 4025 | bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, channel); |
817cee76 | 4026 | if (bss) { |
5bd5666d | 4027 | link->conf->beacon_rate = bss->beacon_rate; |
d2722f8b | 4028 | ieee80211_rx_bss_put(local, bss); |
817cee76 | 4029 | } |
f0706e82 JB |
4030 | } |
4031 | ||
4032 | ||
5bd5666d | 4033 | static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_link_data *link, |
af6b6374 | 4034 | struct sk_buff *skb) |
f0706e82 | 4035 | { |
5bd5666d | 4036 | struct ieee80211_sub_if_data *sdata = link->sdata; |
af6b6374 | 4037 | struct ieee80211_mgmt *mgmt = (void *)skb->data; |
15b7b062 | 4038 | struct ieee80211_if_managed *ifmgd; |
af6b6374 | 4039 | struct ieee80211_rx_status *rx_status = (void *) skb->cb; |
85b27ef7 | 4040 | struct ieee80211_channel *channel; |
af6b6374 | 4041 | size_t baselen, len = skb->len; |
ae6a44e3 | 4042 | |
15b7b062 KV |
4043 | ifmgd = &sdata->u.mgd; |
4044 | ||
8d61ffa5 | 4045 | sdata_assert_lock(sdata); |
77fdaa12 | 4046 | |
85b27ef7 AO |
4047 | /* |
4048 | * According to Draft P802.11ax D6.0 clause 26.17.2.3.2: | |
4049 | * "If a 6 GHz AP receives a Probe Request frame and responds with | |
4050 | * a Probe Response frame [..], the Address 1 field of the Probe | |
4051 | * Response frame shall be set to the broadcast address [..]" | |
4052 | * So, on 6GHz band we should also accept broadcast responses. | |
4053 | */ | |
4054 | channel = ieee80211_get_channel(sdata->local->hw.wiphy, | |
4055 | rx_status->freq); | |
4056 | if (!channel) | |
4057 | return; | |
4058 | ||
4059 | if (!ether_addr_equal(mgmt->da, sdata->vif.addr) && | |
4060 | (channel->band != NL80211_BAND_6GHZ || | |
4061 | !is_broadcast_ether_addr(mgmt->da))) | |
8e7cdbb6 TW |
4062 | return; /* ignore ProbeResp to foreign address */ |
4063 | ||
ae6a44e3 EK |
4064 | baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt; |
4065 | if (baselen > len) | |
4066 | return; | |
4067 | ||
5bd5666d | 4068 | ieee80211_rx_bss_info(link, mgmt, len, rx_status); |
9859b81e | 4069 | |
77fdaa12 | 4070 | if (ifmgd->associated && |
5bd5666d | 4071 | ether_addr_equal(mgmt->bssid, link->u.mgd.bssid)) |
4e5ff376 | 4072 | ieee80211_reset_ap_probe(sdata); |
f0706e82 JB |
4073 | } |
4074 | ||
d91f36db JB |
4075 | /* |
4076 | * This is the canonical list of information elements we care about, | |
4077 | * the filter code also gives us all changes to the Microsoft OUI | |
c8d65917 SG |
4078 | * (00:50:F2) vendor IE which is used for WMM which we need to track, |
4079 | * as well as the DTPC IE (part of the Cisco OUI) used for signaling | |
4080 | * changes to requested client power. | |
d91f36db JB |
4081 | * |
4082 | * We implement beacon filtering in software since that means we can | |
4083 | * avoid processing the frame here and in cfg80211, and userspace | |
4084 | * will not be able to tell whether the hardware supports it or not. | |
4085 | * | |
4086 | * XXX: This list needs to be dynamic -- userspace needs to be able to | |
4087 | * add items it requires. It also needs to be able to tell us to | |
4088 | * look out for other vendor IEs. | |
4089 | */ | |
4090 | static const u64 care_about_ies = | |
1d4df3a5 JB |
4091 | (1ULL << WLAN_EID_COUNTRY) | |
4092 | (1ULL << WLAN_EID_ERP_INFO) | | |
4093 | (1ULL << WLAN_EID_CHANNEL_SWITCH) | | |
4094 | (1ULL << WLAN_EID_PWR_CONSTRAINT) | | |
4095 | (1ULL << WLAN_EID_HT_CAPABILITY) | | |
70a3fd6c JB |
4096 | (1ULL << WLAN_EID_HT_OPERATION) | |
4097 | (1ULL << WLAN_EID_EXT_CHANSWITCH_ANN); | |
d91f36db | 4098 | |
5bd5666d | 4099 | static void ieee80211_handle_beacon_sig(struct ieee80211_link_data *link, |
1ad22fb5 T |
4100 | struct ieee80211_if_managed *ifmgd, |
4101 | struct ieee80211_bss_conf *bss_conf, | |
4102 | struct ieee80211_local *local, | |
4103 | struct ieee80211_rx_status *rx_status) | |
f0706e82 | 4104 | { |
5bd5666d JB |
4105 | struct ieee80211_sub_if_data *sdata = link->sdata; |
4106 | ||
17e4ec14 | 4107 | /* Track average RSSI from the Beacon frames of the current AP */ |
1ad22fb5 | 4108 | |
5bd5666d JB |
4109 | if (!link->u.mgd.tracking_signal_avg) { |
4110 | link->u.mgd.tracking_signal_avg = true; | |
4111 | ewma_beacon_signal_init(&link->u.mgd.ave_beacon_signal); | |
4112 | link->u.mgd.last_cqm_event_signal = 0; | |
4113 | link->u.mgd.count_beacon_signal = 1; | |
4114 | link->u.mgd.last_ave_beacon_signal = 0; | |
17e4ec14 | 4115 | } else { |
5bd5666d | 4116 | link->u.mgd.count_beacon_signal++; |
17e4ec14 | 4117 | } |
615f7b9b | 4118 | |
5bd5666d | 4119 | ewma_beacon_signal_add(&link->u.mgd.ave_beacon_signal, |
bfd8403a | 4120 | -rx_status->signal); |
338c17ae | 4121 | |
615f7b9b | 4122 | if (ifmgd->rssi_min_thold != ifmgd->rssi_max_thold && |
5bd5666d JB |
4123 | link->u.mgd.count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) { |
4124 | int sig = -ewma_beacon_signal_read(&link->u.mgd.ave_beacon_signal); | |
4125 | int last_sig = link->u.mgd.last_ave_beacon_signal; | |
a8182929 EG |
4126 | struct ieee80211_event event = { |
4127 | .type = RSSI_EVENT, | |
4128 | }; | |
615f7b9b MV |
4129 | |
4130 | /* | |
4131 | * if signal crosses either of the boundaries, invoke callback | |
4132 | * with appropriate parameters | |
4133 | */ | |
4134 | if (sig > ifmgd->rssi_max_thold && | |
4135 | (last_sig <= ifmgd->rssi_min_thold || last_sig == 0)) { | |
5bd5666d | 4136 | link->u.mgd.last_ave_beacon_signal = sig; |
a8182929 EG |
4137 | event.u.rssi.data = RSSI_EVENT_HIGH; |
4138 | drv_event_callback(local, sdata, &event); | |
615f7b9b MV |
4139 | } else if (sig < ifmgd->rssi_min_thold && |
4140 | (last_sig >= ifmgd->rssi_max_thold || | |
4141 | last_sig == 0)) { | |
5bd5666d | 4142 | link->u.mgd.last_ave_beacon_signal = sig; |
a8182929 EG |
4143 | event.u.rssi.data = RSSI_EVENT_LOW; |
4144 | drv_event_callback(local, sdata, &event); | |
615f7b9b MV |
4145 | } |
4146 | } | |
4147 | ||
17e4ec14 | 4148 | if (bss_conf->cqm_rssi_thold && |
5bd5666d | 4149 | link->u.mgd.count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT && |
ea086359 | 4150 | !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) { |
5bd5666d JB |
4151 | int sig = -ewma_beacon_signal_read(&link->u.mgd.ave_beacon_signal); |
4152 | int last_event = link->u.mgd.last_cqm_event_signal; | |
17e4ec14 JM |
4153 | int thold = bss_conf->cqm_rssi_thold; |
4154 | int hyst = bss_conf->cqm_rssi_hyst; | |
338c17ae | 4155 | |
17e4ec14 JM |
4156 | if (sig < thold && |
4157 | (last_event == 0 || sig < last_event - hyst)) { | |
5bd5666d | 4158 | link->u.mgd.last_cqm_event_signal = sig; |
17e4ec14 JM |
4159 | ieee80211_cqm_rssi_notify( |
4160 | &sdata->vif, | |
4161 | NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, | |
769f07d8 | 4162 | sig, GFP_KERNEL); |
17e4ec14 JM |
4163 | } else if (sig > thold && |
4164 | (last_event == 0 || sig > last_event + hyst)) { | |
5bd5666d | 4165 | link->u.mgd.last_cqm_event_signal = sig; |
17e4ec14 JM |
4166 | ieee80211_cqm_rssi_notify( |
4167 | &sdata->vif, | |
4168 | NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, | |
769f07d8 | 4169 | sig, GFP_KERNEL); |
17e4ec14 JM |
4170 | } |
4171 | } | |
4172 | ||
2c3c5f8c | 4173 | if (bss_conf->cqm_rssi_low && |
5bd5666d JB |
4174 | link->u.mgd.count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) { |
4175 | int sig = -ewma_beacon_signal_read(&link->u.mgd.ave_beacon_signal); | |
4176 | int last_event = link->u.mgd.last_cqm_event_signal; | |
2c3c5f8c AZ |
4177 | int low = bss_conf->cqm_rssi_low; |
4178 | int high = bss_conf->cqm_rssi_high; | |
4179 | ||
4180 | if (sig < low && | |
4181 | (last_event == 0 || last_event >= low)) { | |
5bd5666d | 4182 | link->u.mgd.last_cqm_event_signal = sig; |
2c3c5f8c AZ |
4183 | ieee80211_cqm_rssi_notify( |
4184 | &sdata->vif, | |
4185 | NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, | |
4186 | sig, GFP_KERNEL); | |
4187 | } else if (sig > high && | |
4188 | (last_event == 0 || last_event <= high)) { | |
5bd5666d | 4189 | link->u.mgd.last_cqm_event_signal = sig; |
2c3c5f8c AZ |
4190 | ieee80211_cqm_rssi_notify( |
4191 | &sdata->vif, | |
4192 | NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, | |
4193 | sig, GFP_KERNEL); | |
4194 | } | |
4195 | } | |
1ad22fb5 T |
4196 | } |
4197 | ||
78ac51f8 SS |
4198 | static bool ieee80211_rx_our_beacon(const u8 *tx_bssid, |
4199 | struct cfg80211_bss *bss) | |
4200 | { | |
4201 | if (ether_addr_equal(tx_bssid, bss->bssid)) | |
4202 | return true; | |
4203 | if (!bss->transmitted_bss) | |
4204 | return false; | |
4205 | return ether_addr_equal(tx_bssid, bss->transmitted_bss->bssid); | |
4206 | } | |
4207 | ||
5bd5666d | 4208 | static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, |
09a740ce | 4209 | struct ieee80211_hdr *hdr, size_t len, |
1ad22fb5 T |
4210 | struct ieee80211_rx_status *rx_status) |
4211 | { | |
5bd5666d | 4212 | struct ieee80211_sub_if_data *sdata = link->sdata; |
1ad22fb5 T |
4213 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
4214 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; | |
f276e20b | 4215 | struct ieee80211_vif_cfg *vif_cfg = &sdata->vif.cfg; |
09a740ce | 4216 | struct ieee80211_mgmt *mgmt = (void *) hdr; |
1ad22fb5 | 4217 | size_t baselen; |
5d24828d | 4218 | struct ieee802_11_elems *elems; |
1ad22fb5 T |
4219 | struct ieee80211_local *local = sdata->local; |
4220 | struct ieee80211_chanctx_conf *chanctx_conf; | |
4221 | struct ieee80211_channel *chan; | |
98b0b467 | 4222 | struct link_sta_info *link_sta; |
1ad22fb5 T |
4223 | struct sta_info *sta; |
4224 | u32 changed = 0; | |
4225 | bool erp_valid; | |
4226 | u8 erp_value = 0; | |
09a740ce TP |
4227 | u32 ncrc = 0; |
4228 | u8 *bssid, *variable = mgmt->u.beacon.variable; | |
1ad22fb5 T |
4229 | u8 deauth_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
4230 | ||
4231 | sdata_assert_lock(sdata); | |
4232 | ||
4233 | /* Process beacon from the current BSS */ | |
09a740ce TP |
4234 | bssid = ieee80211_get_bssid(hdr, len, sdata->vif.type); |
4235 | if (ieee80211_is_s1g_beacon(mgmt->frame_control)) { | |
4236 | struct ieee80211_ext *ext = (void *) mgmt; | |
4237 | ||
4238 | if (ieee80211_is_s1g_short_beacon(ext->frame_control)) | |
4239 | variable = ext->u.s1g_short_beacon.variable; | |
4240 | else | |
4241 | variable = ext->u.s1g_beacon.variable; | |
4242 | } | |
4243 | ||
4244 | baselen = (u8 *) variable - (u8 *) mgmt; | |
1ad22fb5 T |
4245 | if (baselen > len) |
4246 | return; | |
4247 | ||
4248 | rcu_read_lock(); | |
5bd5666d | 4249 | chanctx_conf = rcu_dereference(link->conf->chanctx_conf); |
1ad22fb5 T |
4250 | if (!chanctx_conf) { |
4251 | rcu_read_unlock(); | |
4252 | return; | |
4253 | } | |
4254 | ||
3b23c184 TP |
4255 | if (ieee80211_rx_status_to_khz(rx_status) != |
4256 | ieee80211_channel_to_khz(chanctx_conf->def.chan)) { | |
1ad22fb5 T |
4257 | rcu_read_unlock(); |
4258 | return; | |
4259 | } | |
4260 | chan = chanctx_conf->def.chan; | |
4261 | rcu_read_unlock(); | |
4262 | ||
4263 | if (ifmgd->assoc_data && ifmgd->assoc_data->need_beacon && | |
09a740ce | 4264 | ieee80211_rx_our_beacon(bssid, ifmgd->assoc_data->bss)) { |
5d24828d JB |
4265 | elems = ieee802_11_parse_elems(variable, len - baselen, false, |
4266 | bssid, | |
4267 | ifmgd->assoc_data->bss->bssid); | |
4268 | if (!elems) | |
4269 | return; | |
1ad22fb5 | 4270 | |
5bd5666d | 4271 | ieee80211_rx_bss_info(link, mgmt, len, rx_status); |
78ac51f8 | 4272 | |
5d24828d | 4273 | if (elems->dtim_period) |
5bd5666d JB |
4274 | link->u.mgd.dtim_period = elems->dtim_period; |
4275 | link->u.mgd.have_beacon = true; | |
1ad22fb5 T |
4276 | ifmgd->assoc_data->need_beacon = false; |
4277 | if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY)) { | |
5bd5666d | 4278 | link->conf->sync_tsf = |
1ad22fb5 | 4279 | le64_to_cpu(mgmt->u.beacon.timestamp); |
5bd5666d | 4280 | link->conf->sync_device_ts = |
1ad22fb5 | 4281 | rx_status->device_timestamp; |
5bd5666d | 4282 | link->conf->sync_dtim_count = elems->dtim_count; |
1ad22fb5 | 4283 | } |
78ac51f8 | 4284 | |
5d24828d | 4285 | if (elems->mbssid_config_ie) |
78ac51f8 | 4286 | bss_conf->profile_periodicity = |
5d24828d | 4287 | elems->mbssid_config_ie->profile_periodicity; |
bbc6f03f JB |
4288 | else |
4289 | bss_conf->profile_periodicity = 0; | |
78ac51f8 | 4290 | |
5d24828d JB |
4291 | if (elems->ext_capab_len >= 11 && |
4292 | (elems->ext_capab[10] & WLAN_EXT_CAPA11_EMA_SUPPORT)) | |
78ac51f8 | 4293 | bss_conf->ema_ap = true; |
bbc6f03f JB |
4294 | else |
4295 | bss_conf->ema_ap = false; | |
78ac51f8 | 4296 | |
1ad22fb5 T |
4297 | /* continue assoc process */ |
4298 | ifmgd->assoc_data->timeout = jiffies; | |
4299 | ifmgd->assoc_data->timeout_started = true; | |
4300 | run_again(sdata, ifmgd->assoc_data->timeout); | |
5d24828d | 4301 | kfree(elems); |
1ad22fb5 T |
4302 | return; |
4303 | } | |
4304 | ||
4305 | if (!ifmgd->associated || | |
5bd5666d | 4306 | !ieee80211_rx_our_beacon(bssid, link->u.mgd.bss)) |
1ad22fb5 | 4307 | return; |
5bd5666d | 4308 | bssid = link->u.mgd.bssid; |
1ad22fb5 T |
4309 | |
4310 | if (!(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) | |
5bd5666d | 4311 | ieee80211_handle_beacon_sig(link, ifmgd, bss_conf, |
1ad22fb5 | 4312 | local, rx_status); |
2c3c5f8c | 4313 | |
392b9ffb | 4314 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) { |
bdcbd8e0 | 4315 | mlme_dbg_ratelimited(sdata, |
112c31f0 | 4316 | "cancelling AP probe due to a received beacon\n"); |
392b9ffb | 4317 | ieee80211_reset_ap_probe(sdata); |
92778180 JM |
4318 | } |
4319 | ||
b291ba11 JB |
4320 | /* |
4321 | * Push the beacon loss detection into the future since | |
4322 | * we are processing a beacon from the AP just now. | |
4323 | */ | |
d3a910a8 | 4324 | ieee80211_sta_reset_beacon_monitor(sdata); |
b291ba11 | 4325 | |
09a740ce TP |
4326 | /* TODO: CRC urrently not calculated on S1G Beacon Compatibility |
4327 | * element (which carries the beacon interval). Don't forget to add a | |
4328 | * bit to care_about_ies[] above if mac80211 is interested in a | |
4329 | * changing S1G element. | |
4330 | */ | |
4331 | if (!ieee80211_is_s1g_beacon(hdr->frame_control)) | |
4332 | ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4); | |
5d24828d JB |
4333 | elems = ieee802_11_parse_elems_crc(variable, len - baselen, |
4334 | false, care_about_ies, ncrc, | |
4335 | mgmt->bssid, bssid); | |
4336 | if (!elems) | |
4337 | return; | |
4338 | ncrc = elems->crc; | |
d91f36db | 4339 | |
90d13e8f | 4340 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && |
f276e20b | 4341 | ieee80211_check_tim(elems->tim, elems->tim_len, vif_cfg->aid)) { |
90d13e8f JB |
4342 | if (local->hw.conf.dynamic_ps_timeout > 0) { |
4343 | if (local->hw.conf.flags & IEEE80211_CONF_PS) { | |
4344 | local->hw.conf.flags &= ~IEEE80211_CONF_PS; | |
4345 | ieee80211_hw_config(local, | |
4346 | IEEE80211_CONF_CHANGE_PS); | |
572e0012 | 4347 | } |
076cdcb1 | 4348 | ieee80211_send_nullfunc(local, sdata, false); |
90d13e8f JB |
4349 | } else if (!local->pspolling && sdata->u.mgd.powersave) { |
4350 | local->pspolling = true; | |
4351 | ||
4352 | /* | |
4353 | * Here is assumed that the driver will be | |
4354 | * able to send ps-poll frame and receive a | |
4355 | * response even though power save mode is | |
4356 | * enabled, but some drivers might require | |
4357 | * to disable power save here. This needs | |
4358 | * to be investigated. | |
4359 | */ | |
4360 | ieee80211_send_pspoll(local, sdata); | |
a97b77b9 VN |
4361 | } |
4362 | } | |
7a5158ef | 4363 | |
b115b972 JD |
4364 | if (sdata->vif.p2p || |
4365 | sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) { | |
67baf663 | 4366 | struct ieee80211_p2p_noa_attr noa = {}; |
488dd7b5 JB |
4367 | int ret; |
4368 | ||
09a740ce | 4369 | ret = cfg80211_get_p2p_attr(variable, |
488dd7b5 JB |
4370 | len - baselen, |
4371 | IEEE80211_P2P_ATTR_ABSENCE_NOTICE, | |
934457ee | 4372 | (u8 *) &noa, sizeof(noa)); |
67baf663 | 4373 | if (ret >= 2) { |
5bd5666d | 4374 | if (link->u.mgd.p2p_noa_index != noa.index) { |
67baf663 | 4375 | /* valid noa_attr and index changed */ |
5bd5666d | 4376 | link->u.mgd.p2p_noa_index = noa.index; |
67baf663 JD |
4377 | memcpy(&bss_conf->p2p_noa_attr, &noa, sizeof(noa)); |
4378 | changed |= BSS_CHANGED_P2P_PS; | |
4379 | /* | |
4380 | * make sure we update all information, the CRC | |
4381 | * mechanism doesn't look at P2P attributes. | |
4382 | */ | |
5bd5666d | 4383 | link->u.mgd.beacon_crc_valid = false; |
67baf663 | 4384 | } |
5bd5666d | 4385 | } else if (link->u.mgd.p2p_noa_index != -1) { |
67baf663 | 4386 | /* noa_attr not found and we had valid noa_attr before */ |
5bd5666d | 4387 | link->u.mgd.p2p_noa_index = -1; |
67baf663 | 4388 | memset(&bss_conf->p2p_noa_attr, 0, sizeof(bss_conf->p2p_noa_attr)); |
488dd7b5 | 4389 | changed |= BSS_CHANGED_P2P_PS; |
5bd5666d | 4390 | link->u.mgd.beacon_crc_valid = false; |
488dd7b5 JB |
4391 | } |
4392 | } | |
4393 | ||
5bd5666d JB |
4394 | if (link->u.mgd.csa_waiting_bcn) |
4395 | ieee80211_chswitch_post_beacon(link); | |
0c21e632 | 4396 | |
2ecc3905 AB |
4397 | /* |
4398 | * Update beacon timing and dtim count on every beacon appearance. This | |
4399 | * will allow the driver to use the most updated values. Do it before | |
4400 | * comparing this one with last received beacon. | |
4401 | * IMPORTANT: These parameters would possibly be out of sync by the time | |
4402 | * the driver will use them. The synchronized view is currently | |
4403 | * guaranteed only in certain callbacks. | |
4404 | */ | |
09a740ce TP |
4405 | if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY) && |
4406 | !ieee80211_is_s1g_beacon(hdr->frame_control)) { | |
5bd5666d | 4407 | link->conf->sync_tsf = |
2ecc3905 | 4408 | le64_to_cpu(mgmt->u.beacon.timestamp); |
5bd5666d | 4409 | link->conf->sync_device_ts = |
2ecc3905 | 4410 | rx_status->device_timestamp; |
5bd5666d | 4411 | link->conf->sync_dtim_count = elems->dtim_count; |
2ecc3905 AB |
4412 | } |
4413 | ||
5bd5666d | 4414 | if ((ncrc == link->u.mgd.beacon_crc && link->u.mgd.beacon_crc_valid) || |
09a740ce | 4415 | ieee80211_is_s1g_short_beacon(mgmt->frame_control)) |
5d24828d | 4416 | goto free; |
5bd5666d JB |
4417 | link->u.mgd.beacon_crc = ncrc; |
4418 | link->u.mgd.beacon_crc_valid = true; | |
30196673 | 4419 | |
5bd5666d | 4420 | ieee80211_rx_bss_info(link, mgmt, len, rx_status); |
7d25745d | 4421 | |
5bd5666d | 4422 | ieee80211_sta_process_chanswitch(link, rx_status->mactime, |
2ba45384 | 4423 | rx_status->device_timestamp, |
5d24828d | 4424 | elems, true); |
d70b7616 | 4425 | |
6359598d | 4426 | if (!link->u.mgd.disable_wmm_tracking && |
5bd5666d | 4427 | ieee80211_sta_wmm_params(local, link, elems->wmm_param, |
5d24828d JB |
4428 | elems->wmm_param_len, |
4429 | elems->mu_edca_param_set)) | |
7d25745d JB |
4430 | changed |= BSS_CHANGED_QOS; |
4431 | ||
c65dd147 EG |
4432 | /* |
4433 | * If we haven't had a beacon before, tell the driver about the | |
ef429dad | 4434 | * DTIM period (and beacon timing if desired) now. |
c65dd147 | 4435 | */ |
5bd5666d | 4436 | if (!link->u.mgd.have_beacon) { |
c65dd147 | 4437 | /* a few bogus AP send dtim_period = 0 or no TIM IE */ |
5d24828d | 4438 | bss_conf->dtim_period = elems->dtim_period ?: 1; |
ef429dad | 4439 | |
989c6505 | 4440 | changed |= BSS_CHANGED_BEACON_INFO; |
5bd5666d | 4441 | link->u.mgd.have_beacon = true; |
482a9c74 AB |
4442 | |
4443 | mutex_lock(&local->iflist_mtx); | |
4a733ef1 | 4444 | ieee80211_recalc_ps(local); |
482a9c74 AB |
4445 | mutex_unlock(&local->iflist_mtx); |
4446 | ||
ce857888 | 4447 | ieee80211_recalc_ps_vif(sdata); |
c65dd147 EG |
4448 | } |
4449 | ||
5d24828d | 4450 | if (elems->erp_info) { |
7a5158ef | 4451 | erp_valid = true; |
5d24828d | 4452 | erp_value = elems->erp_info[0]; |
7a5158ef JB |
4453 | } else { |
4454 | erp_valid = false; | |
50c4afb9 | 4455 | } |
09a740ce TP |
4456 | |
4457 | if (!ieee80211_is_s1g_beacon(hdr->frame_control)) | |
1dd0f31c | 4458 | changed |= ieee80211_handle_bss_capability(link, |
09a740ce TP |
4459 | le16_to_cpu(mgmt->u.beacon.capab_info), |
4460 | erp_valid, erp_value); | |
f0706e82 | 4461 | |
1128958d | 4462 | mutex_lock(&local->sta_mtx); |
b65567b0 | 4463 | sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr); |
98b0b467 JB |
4464 | if (WARN_ON(!sta)) |
4465 | goto free; | |
4466 | link_sta = rcu_dereference_protected(sta->link[link->link_id], | |
4467 | lockdep_is_held(&local->sta_mtx)); | |
4468 | if (WARN_ON(!link_sta)) | |
4469 | goto free; | |
bee7f586 | 4470 | |
98b0b467 | 4471 | changed |= ieee80211_recalc_twt_req(link, link_sta, elems); |
c9d3245e | 4472 | |
d3853f70 | 4473 | if (ieee80211_config_bw(link, elems->ht_cap_elem, |
5d24828d JB |
4474 | elems->vht_cap_elem, elems->ht_operation, |
4475 | elems->vht_operation, elems->he_operation, | |
5dca295d | 4476 | elems->eht_operation, |
5d24828d | 4477 | elems->s1g_oper, bssid, &changed)) { |
30eb1dc2 | 4478 | mutex_unlock(&local->sta_mtx); |
89f774e6 JB |
4479 | sdata_info(sdata, |
4480 | "failed to follow AP %pM bandwidth change, disconnect\n", | |
4481 | bssid); | |
30eb1dc2 JB |
4482 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
4483 | WLAN_REASON_DEAUTH_LEAVING, | |
4484 | true, deauth_buf); | |
a90faa9d EG |
4485 | ieee80211_report_disconnect(sdata, deauth_buf, |
4486 | sizeof(deauth_buf), true, | |
3f8a39ff JB |
4487 | WLAN_REASON_DEAUTH_LEAVING, |
4488 | false); | |
5d24828d | 4489 | goto free; |
30eb1dc2 | 4490 | } |
bee7f586 | 4491 | |
5d24828d | 4492 | if (sta && elems->opmode_notif) |
98b0b467 | 4493 | ieee80211_vht_handle_opmode(sdata, link_sta, |
afe0d181 | 4494 | *elems->opmode_notif, |
cf1e05c6 | 4495 | rx_status->band); |
1128958d | 4496 | mutex_unlock(&local->sta_mtx); |
d3c990fb | 4497 | |
5bd5666d | 4498 | changed |= ieee80211_handle_pwr_constr(link, chan, mgmt, |
5d24828d JB |
4499 | elems->country_elem, |
4500 | elems->country_elem_len, | |
4501 | elems->pwr_constr_elem, | |
4502 | elems->cisco_dtpc_elem); | |
3f2355cb | 4503 | |
5bd5666d | 4504 | ieee80211_link_info_change_notify(sdata, link, changed); |
5d24828d JB |
4505 | free: |
4506 | kfree(elems); | |
f0706e82 JB |
4507 | } |
4508 | ||
09a740ce TP |
4509 | void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, |
4510 | struct sk_buff *skb) | |
4511 | { | |
5bd5666d | 4512 | struct ieee80211_link_data *link = &sdata->deflink; |
09a740ce TP |
4513 | struct ieee80211_rx_status *rx_status; |
4514 | struct ieee80211_hdr *hdr; | |
4515 | u16 fc; | |
4516 | ||
4517 | rx_status = (struct ieee80211_rx_status *) skb->cb; | |
4518 | hdr = (struct ieee80211_hdr *) skb->data; | |
4519 | fc = le16_to_cpu(hdr->frame_control); | |
4520 | ||
4521 | sdata_lock(sdata); | |
4522 | switch (fc & IEEE80211_FCTL_STYPE) { | |
4523 | case IEEE80211_STYPE_S1G_BEACON: | |
5bd5666d | 4524 | ieee80211_rx_mgmt_beacon(link, hdr, skb->len, rx_status); |
09a740ce TP |
4525 | break; |
4526 | } | |
4527 | sdata_unlock(sdata); | |
4528 | } | |
4529 | ||
1fa57d01 JB |
4530 | void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, |
4531 | struct sk_buff *skb) | |
f0706e82 | 4532 | { |
5bd5666d | 4533 | struct ieee80211_link_data *link = &sdata->deflink; |
f0706e82 | 4534 | struct ieee80211_rx_status *rx_status; |
f0706e82 JB |
4535 | struct ieee80211_mgmt *mgmt; |
4536 | u16 fc; | |
1b3a2e49 | 4537 | int ies_len; |
f0706e82 | 4538 | |
f0706e82 JB |
4539 | rx_status = (struct ieee80211_rx_status *) skb->cb; |
4540 | mgmt = (struct ieee80211_mgmt *) skb->data; | |
4541 | fc = le16_to_cpu(mgmt->frame_control); | |
4542 | ||
8d61ffa5 | 4543 | sdata_lock(sdata); |
77fdaa12 | 4544 | |
66e67e41 JB |
4545 | switch (fc & IEEE80211_FCTL_STYPE) { |
4546 | case IEEE80211_STYPE_BEACON: | |
5bd5666d | 4547 | ieee80211_rx_mgmt_beacon(link, (void *)mgmt, |
09a740ce | 4548 | skb->len, rx_status); |
66e67e41 JB |
4549 | break; |
4550 | case IEEE80211_STYPE_PROBE_RESP: | |
5bd5666d | 4551 | ieee80211_rx_mgmt_probe_resp(link, skb); |
66e67e41 JB |
4552 | break; |
4553 | case IEEE80211_STYPE_AUTH: | |
8d61ffa5 | 4554 | ieee80211_rx_mgmt_auth(sdata, mgmt, skb->len); |
66e67e41 JB |
4555 | break; |
4556 | case IEEE80211_STYPE_DEAUTH: | |
8d61ffa5 | 4557 | ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len); |
66e67e41 JB |
4558 | break; |
4559 | case IEEE80211_STYPE_DISASSOC: | |
8d61ffa5 | 4560 | ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len); |
66e67e41 JB |
4561 | break; |
4562 | case IEEE80211_STYPE_ASSOC_RESP: | |
4563 | case IEEE80211_STYPE_REASSOC_RESP: | |
8d61ffa5 | 4564 | ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len); |
66e67e41 JB |
4565 | break; |
4566 | case IEEE80211_STYPE_ACTION: | |
37799e52 | 4567 | if (mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) { |
5d24828d JB |
4568 | struct ieee802_11_elems *elems; |
4569 | ||
1b3a2e49 JB |
4570 | ies_len = skb->len - |
4571 | offsetof(struct ieee80211_mgmt, | |
4572 | u.action.u.chan_switch.variable); | |
37799e52 JB |
4573 | |
4574 | if (ies_len < 0) | |
4575 | break; | |
4576 | ||
4abb52a4 | 4577 | /* CSA IE cannot be overridden, no need for BSSID */ |
5d24828d JB |
4578 | elems = ieee802_11_parse_elems( |
4579 | mgmt->u.action.u.chan_switch.variable, | |
4580 | ies_len, true, mgmt->bssid, NULL); | |
37799e52 | 4581 | |
8223ac19 | 4582 | if (elems && !elems->parse_error) |
5bd5666d | 4583 | ieee80211_sta_process_chanswitch(link, |
8223ac19 JB |
4584 | rx_status->mactime, |
4585 | rx_status->device_timestamp, | |
4586 | elems, false); | |
5d24828d | 4587 | kfree(elems); |
1b3a2e49 | 4588 | } else if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) { |
5d24828d JB |
4589 | struct ieee802_11_elems *elems; |
4590 | ||
1b3a2e49 JB |
4591 | ies_len = skb->len - |
4592 | offsetof(struct ieee80211_mgmt, | |
4593 | u.action.u.ext_chan_switch.variable); | |
4594 | ||
4595 | if (ies_len < 0) | |
4596 | break; | |
4597 | ||
4abb52a4 SS |
4598 | /* |
4599 | * extended CSA IE can't be overridden, no need for | |
4600 | * BSSID | |
4601 | */ | |
5d24828d JB |
4602 | elems = ieee802_11_parse_elems( |
4603 | mgmt->u.action.u.ext_chan_switch.variable, | |
4604 | ies_len, true, mgmt->bssid, NULL); | |
1b3a2e49 | 4605 | |
8223ac19 JB |
4606 | if (elems && !elems->parse_error) { |
4607 | /* for the handling code pretend it was an IE */ | |
4608 | elems->ext_chansw_ie = | |
4609 | &mgmt->u.action.u.ext_chan_switch.data; | |
1b3a2e49 | 4610 | |
5bd5666d | 4611 | ieee80211_sta_process_chanswitch(link, |
8223ac19 JB |
4612 | rx_status->mactime, |
4613 | rx_status->device_timestamp, | |
4614 | elems, false); | |
4615 | } | |
1b3a2e49 | 4616 | |
5d24828d | 4617 | kfree(elems); |
77fdaa12 | 4618 | } |
37799e52 | 4619 | break; |
77fdaa12 | 4620 | } |
8d61ffa5 | 4621 | sdata_unlock(sdata); |
f0706e82 JB |
4622 | } |
4623 | ||
34f11cd3 | 4624 | static void ieee80211_sta_timer(struct timer_list *t) |
f0706e82 | 4625 | { |
60f8b39c | 4626 | struct ieee80211_sub_if_data *sdata = |
34f11cd3 | 4627 | from_timer(sdata, t, u.mgd.timer); |
5bb644a0 | 4628 | |
9b7d72c1 | 4629 | ieee80211_queue_work(&sdata->local->hw, &sdata->work); |
f0706e82 JB |
4630 | } |
4631 | ||
7dd231eb | 4632 | void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, |
53da4c45 | 4633 | u8 reason, bool tx) |
04ac3c0e | 4634 | { |
6ae16775 | 4635 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
04ac3c0e | 4636 | |
37ad3888 | 4637 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason, |
6b684db1 | 4638 | tx, frame_buf); |
37ad3888 | 4639 | |
a90faa9d | 4640 | ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, |
3f8a39ff | 4641 | reason, false); |
04ac3c0e FF |
4642 | } |
4643 | ||
46cad4b7 | 4644 | static int ieee80211_auth(struct ieee80211_sub_if_data *sdata) |
66e67e41 JB |
4645 | { |
4646 | struct ieee80211_local *local = sdata->local; | |
4647 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
4648 | struct ieee80211_mgd_auth_data *auth_data = ifmgd->auth_data; | |
1672c0e3 | 4649 | u32 tx_flags = 0; |
46cad4b7 JB |
4650 | u16 trans = 1; |
4651 | u16 status = 0; | |
15fae341 JB |
4652 | struct ieee80211_prep_tx_info info = { |
4653 | .subtype = IEEE80211_STYPE_AUTH, | |
4654 | }; | |
66e67e41 | 4655 | |
8d61ffa5 | 4656 | sdata_assert_lock(sdata); |
66e67e41 JB |
4657 | |
4658 | if (WARN_ON_ONCE(!auth_data)) | |
4659 | return -EINVAL; | |
4660 | ||
66e67e41 JB |
4661 | auth_data->tries++; |
4662 | ||
4663 | if (auth_data->tries > IEEE80211_AUTH_MAX_TRIES) { | |
bdcbd8e0 JB |
4664 | sdata_info(sdata, "authentication with %pM timed out\n", |
4665 | auth_data->bss->bssid); | |
66e67e41 JB |
4666 | |
4667 | /* | |
4668 | * Most likely AP is not in the range so remove the | |
4669 | * bss struct for that AP. | |
4670 | */ | |
4671 | cfg80211_unlink_bss(local->hw.wiphy, auth_data->bss); | |
4672 | ||
4673 | return -ETIMEDOUT; | |
4674 | } | |
4675 | ||
d4e36e55 | 4676 | if (auth_data->algorithm == WLAN_AUTH_SAE) |
15fae341 | 4677 | info.duration = jiffies_to_msecs(IEEE80211_AUTH_TIMEOUT_SAE); |
d4e36e55 | 4678 | |
15fae341 | 4679 | drv_mgd_prepare_tx(local, sdata, &info); |
a1845fc7 | 4680 | |
46cad4b7 JB |
4681 | sdata_info(sdata, "send auth to %pM (try %d/%d)\n", |
4682 | auth_data->bss->bssid, auth_data->tries, | |
4683 | IEEE80211_AUTH_MAX_TRIES); | |
66e67e41 | 4684 | |
46cad4b7 | 4685 | auth_data->expected_transaction = 2; |
6b8ece3a | 4686 | |
46cad4b7 JB |
4687 | if (auth_data->algorithm == WLAN_AUTH_SAE) { |
4688 | trans = auth_data->sae_trans; | |
4689 | status = auth_data->sae_status; | |
4690 | auth_data->expected_transaction = trans; | |
4691 | } | |
66e67e41 | 4692 | |
46cad4b7 JB |
4693 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
4694 | tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | | |
4695 | IEEE80211_TX_INTFL_MLME_CONN_TX; | |
66e67e41 | 4696 | |
46cad4b7 JB |
4697 | ieee80211_send_auth(sdata, trans, auth_data->algorithm, status, |
4698 | auth_data->data, auth_data->data_len, | |
4699 | auth_data->bss->bssid, | |
4700 | auth_data->bss->bssid, NULL, 0, 0, | |
4701 | tx_flags); | |
66e67e41 | 4702 | |
6211dd12 | 4703 | if (tx_flags == 0) { |
407879b6 IP |
4704 | if (auth_data->algorithm == WLAN_AUTH_SAE) |
4705 | auth_data->timeout = jiffies + | |
4706 | IEEE80211_AUTH_TIMEOUT_SAE; | |
4707 | else | |
4708 | auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; | |
89afe614 | 4709 | } else { |
cb236d2d JB |
4710 | auth_data->timeout = |
4711 | round_jiffies_up(jiffies + IEEE80211_AUTH_TIMEOUT_LONG); | |
1672c0e3 | 4712 | } |
66e67e41 | 4713 | |
407879b6 IP |
4714 | auth_data->timeout_started = true; |
4715 | run_again(sdata, auth_data->timeout); | |
4716 | ||
66e67e41 JB |
4717 | return 0; |
4718 | } | |
4719 | ||
4720 | static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) | |
4721 | { | |
4722 | struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; | |
4723 | struct ieee80211_local *local = sdata->local; | |
a72c01a9 | 4724 | int ret; |
66e67e41 | 4725 | |
8d61ffa5 | 4726 | sdata_assert_lock(sdata); |
66e67e41 | 4727 | |
66e67e41 JB |
4728 | assoc_data->tries++; |
4729 | if (assoc_data->tries > IEEE80211_ASSOC_MAX_TRIES) { | |
bdcbd8e0 JB |
4730 | sdata_info(sdata, "association with %pM timed out\n", |
4731 | assoc_data->bss->bssid); | |
66e67e41 JB |
4732 | |
4733 | /* | |
4734 | * Most likely AP is not in the range so remove the | |
4735 | * bss struct for that AP. | |
4736 | */ | |
4737 | cfg80211_unlink_bss(local->hw.wiphy, assoc_data->bss); | |
4738 | ||
4739 | return -ETIMEDOUT; | |
4740 | } | |
4741 | ||
bdcbd8e0 JB |
4742 | sdata_info(sdata, "associate with %pM (try %d/%d)\n", |
4743 | assoc_data->bss->bssid, assoc_data->tries, | |
4744 | IEEE80211_ASSOC_MAX_TRIES); | |
a72c01a9 JJ |
4745 | ret = ieee80211_send_assoc(sdata); |
4746 | if (ret) | |
4747 | return ret; | |
66e67e41 | 4748 | |
30686bf7 | 4749 | if (!ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) { |
1672c0e3 | 4750 | assoc_data->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT; |
89afe614 | 4751 | assoc_data->timeout_started = true; |
8d61ffa5 | 4752 | run_again(sdata, assoc_data->timeout); |
89afe614 | 4753 | } else { |
cb236d2d JB |
4754 | assoc_data->timeout = |
4755 | round_jiffies_up(jiffies + | |
4756 | IEEE80211_ASSOC_TIMEOUT_LONG); | |
4757 | assoc_data->timeout_started = true; | |
4758 | run_again(sdata, assoc_data->timeout); | |
1672c0e3 | 4759 | } |
66e67e41 JB |
4760 | |
4761 | return 0; | |
4762 | } | |
4763 | ||
1672c0e3 JB |
4764 | void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, |
4765 | __le16 fc, bool acked) | |
4766 | { | |
4767 | struct ieee80211_local *local = sdata->local; | |
4768 | ||
4769 | sdata->u.mgd.status_fc = fc; | |
4770 | sdata->u.mgd.status_acked = acked; | |
4771 | sdata->u.mgd.status_received = true; | |
4772 | ||
4773 | ieee80211_queue_work(&local->hw, &sdata->work); | |
4774 | } | |
4775 | ||
1fa57d01 | 4776 | void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) |
9c6bd790 | 4777 | { |
9c6bd790 | 4778 | struct ieee80211_local *local = sdata->local; |
1fa57d01 | 4779 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
9c6bd790 | 4780 | |
8d61ffa5 | 4781 | sdata_lock(sdata); |
77fdaa12 | 4782 | |
1672c0e3 JB |
4783 | if (ifmgd->status_received) { |
4784 | __le16 fc = ifmgd->status_fc; | |
4785 | bool status_acked = ifmgd->status_acked; | |
4786 | ||
4787 | ifmgd->status_received = false; | |
46cad4b7 | 4788 | if (ifmgd->auth_data && ieee80211_is_auth(fc)) { |
1672c0e3 | 4789 | if (status_acked) { |
407879b6 IP |
4790 | if (ifmgd->auth_data->algorithm == |
4791 | WLAN_AUTH_SAE) | |
4792 | ifmgd->auth_data->timeout = | |
4793 | jiffies + | |
4794 | IEEE80211_AUTH_TIMEOUT_SAE; | |
4795 | else | |
4796 | ifmgd->auth_data->timeout = | |
4797 | jiffies + | |
4798 | IEEE80211_AUTH_TIMEOUT_SHORT; | |
8d61ffa5 | 4799 | run_again(sdata, ifmgd->auth_data->timeout); |
1672c0e3 JB |
4800 | } else { |
4801 | ifmgd->auth_data->timeout = jiffies - 1; | |
4802 | } | |
89afe614 | 4803 | ifmgd->auth_data->timeout_started = true; |
1672c0e3 JB |
4804 | } else if (ifmgd->assoc_data && |
4805 | (ieee80211_is_assoc_req(fc) || | |
4806 | ieee80211_is_reassoc_req(fc))) { | |
4807 | if (status_acked) { | |
4808 | ifmgd->assoc_data->timeout = | |
4809 | jiffies + IEEE80211_ASSOC_TIMEOUT_SHORT; | |
8d61ffa5 | 4810 | run_again(sdata, ifmgd->assoc_data->timeout); |
1672c0e3 JB |
4811 | } else { |
4812 | ifmgd->assoc_data->timeout = jiffies - 1; | |
4813 | } | |
89afe614 | 4814 | ifmgd->assoc_data->timeout_started = true; |
1672c0e3 JB |
4815 | } |
4816 | } | |
4817 | ||
89afe614 | 4818 | if (ifmgd->auth_data && ifmgd->auth_data->timeout_started && |
66e67e41 | 4819 | time_after(jiffies, ifmgd->auth_data->timeout)) { |
94d9864c | 4820 | if (ifmgd->auth_data->done || ifmgd->auth_data->waiting) { |
66e67e41 | 4821 | /* |
94d9864c JB |
4822 | * ok ... we waited for assoc or continuation but |
4823 | * userspace didn't do it, so kill the auth data | |
66e67e41 JB |
4824 | */ |
4825 | ieee80211_destroy_auth_data(sdata, false); | |
46cad4b7 | 4826 | } else if (ieee80211_auth(sdata)) { |
66e67e41 | 4827 | u8 bssid[ETH_ALEN]; |
a9409093 EG |
4828 | struct ieee80211_event event = { |
4829 | .type = MLME_EVENT, | |
4830 | .u.mlme.data = AUTH_EVENT, | |
4831 | .u.mlme.status = MLME_TIMEOUT, | |
4832 | }; | |
66e67e41 JB |
4833 | |
4834 | memcpy(bssid, ifmgd->auth_data->bss->bssid, ETH_ALEN); | |
4835 | ||
4836 | ieee80211_destroy_auth_data(sdata, false); | |
4837 | ||
6ff57cf8 | 4838 | cfg80211_auth_timeout(sdata->dev, bssid); |
a9409093 | 4839 | drv_event_callback(sdata->local, sdata, &event); |
66e67e41 | 4840 | } |
89afe614 | 4841 | } else if (ifmgd->auth_data && ifmgd->auth_data->timeout_started) |
8d61ffa5 | 4842 | run_again(sdata, ifmgd->auth_data->timeout); |
66e67e41 | 4843 | |
89afe614 | 4844 | if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started && |
66e67e41 | 4845 | time_after(jiffies, ifmgd->assoc_data->timeout)) { |
bfd8403a JB |
4846 | if ((ifmgd->assoc_data->need_beacon && |
4847 | !sdata->deflink.u.mgd.have_beacon) || | |
66e67e41 | 4848 | ieee80211_do_assoc(sdata)) { |
d0d1a12f EG |
4849 | struct ieee80211_event event = { |
4850 | .type = MLME_EVENT, | |
4851 | .u.mlme.data = ASSOC_EVENT, | |
4852 | .u.mlme.status = MLME_TIMEOUT, | |
4853 | }; | |
66e67e41 | 4854 | |
afa2d659 | 4855 | ieee80211_destroy_assoc_data(sdata, ASSOC_TIMEOUT); |
d0d1a12f | 4856 | drv_event_callback(sdata->local, sdata, &event); |
66e67e41 | 4857 | } |
89afe614 | 4858 | } else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started) |
8d61ffa5 | 4859 | run_again(sdata, ifmgd->assoc_data->timeout); |
66e67e41 | 4860 | |
392b9ffb | 4861 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL && |
b291ba11 | 4862 | ifmgd->associated) { |
bfd8403a | 4863 | u8 *bssid = sdata->deflink.u.mgd.bssid; |
72a8a3ed | 4864 | int max_tries; |
a43abf29 | 4865 | |
30686bf7 | 4866 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
180205bd | 4867 | max_tries = max_nullfunc_tries; |
72a8a3ed | 4868 | else |
180205bd | 4869 | max_tries = max_probe_tries; |
72a8a3ed | 4870 | |
4e5ff376 FF |
4871 | /* ACK received for nullfunc probing frame */ |
4872 | if (!ifmgd->probe_send_count) | |
4873 | ieee80211_reset_ap_probe(sdata); | |
04ac3c0e FF |
4874 | else if (ifmgd->nullfunc_failed) { |
4875 | if (ifmgd->probe_send_count < max_tries) { | |
bdcbd8e0 JB |
4876 | mlme_dbg(sdata, |
4877 | "No ack for nullfunc frame to AP %pM, try %d/%i\n", | |
4878 | bssid, ifmgd->probe_send_count, | |
4879 | max_tries); | |
04ac3c0e FF |
4880 | ieee80211_mgd_probe_ap_send(sdata); |
4881 | } else { | |
bdcbd8e0 JB |
4882 | mlme_dbg(sdata, |
4883 | "No ack for nullfunc frame to AP %pM, disconnecting.\n", | |
4884 | bssid); | |
53da4c45 | 4885 | ieee80211_sta_connection_lost(sdata, |
6b684db1 JB |
4886 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, |
4887 | false); | |
04ac3c0e FF |
4888 | } |
4889 | } else if (time_is_after_jiffies(ifmgd->probe_timeout)) | |
8d61ffa5 | 4890 | run_again(sdata, ifmgd->probe_timeout); |
30686bf7 | 4891 | else if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) { |
bdcbd8e0 JB |
4892 | mlme_dbg(sdata, |
4893 | "Failed to send nullfunc to AP %pM after %dms, disconnecting\n", | |
4894 | bssid, probe_wait_ms); | |
53da4c45 | 4895 | ieee80211_sta_connection_lost(sdata, |
6b684db1 | 4896 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false); |
04ac3c0e | 4897 | } else if (ifmgd->probe_send_count < max_tries) { |
bdcbd8e0 JB |
4898 | mlme_dbg(sdata, |
4899 | "No probe response from AP %pM after %dms, try %d/%i\n", | |
4900 | bssid, probe_wait_ms, | |
4901 | ifmgd->probe_send_count, max_tries); | |
a43abf29 ML |
4902 | ieee80211_mgd_probe_ap_send(sdata); |
4903 | } else { | |
b291ba11 JB |
4904 | /* |
4905 | * We actually lost the connection ... or did we? | |
4906 | * Let's make sure! | |
4907 | */ | |
89f774e6 JB |
4908 | mlme_dbg(sdata, |
4909 | "No probe response from AP %pM after %dms, disconnecting.\n", | |
4910 | bssid, probe_wait_ms); | |
04ac3c0e | 4911 | |
53da4c45 | 4912 | ieee80211_sta_connection_lost(sdata, |
6b684db1 | 4913 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false); |
b291ba11 JB |
4914 | } |
4915 | } | |
4916 | ||
8d61ffa5 | 4917 | sdata_unlock(sdata); |
f0706e82 JB |
4918 | } |
4919 | ||
34f11cd3 | 4920 | static void ieee80211_sta_bcn_mon_timer(struct timer_list *t) |
b291ba11 JB |
4921 | { |
4922 | struct ieee80211_sub_if_data *sdata = | |
34f11cd3 | 4923 | from_timer(sdata, t, u.mgd.bcn_mon_timer); |
b291ba11 | 4924 | |
5bd5666d JB |
4925 | if (WARN_ON(sdata->vif.valid_links)) |
4926 | return; | |
4927 | ||
bfd8403a JB |
4928 | if (sdata->vif.bss_conf.csa_active && |
4929 | !sdata->deflink.u.mgd.csa_waiting_bcn) | |
e5593f56 MK |
4930 | return; |
4931 | ||
0b91111f LP |
4932 | if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) |
4933 | return; | |
4934 | ||
682bd38b | 4935 | sdata->u.mgd.connection_loss = false; |
1e4dcd01 JO |
4936 | ieee80211_queue_work(&sdata->local->hw, |
4937 | &sdata->u.mgd.beacon_connection_loss_work); | |
b291ba11 JB |
4938 | } |
4939 | ||
34f11cd3 | 4940 | static void ieee80211_sta_conn_mon_timer(struct timer_list *t) |
b291ba11 JB |
4941 | { |
4942 | struct ieee80211_sub_if_data *sdata = | |
34f11cd3 | 4943 | from_timer(sdata, t, u.mgd.conn_mon_timer); |
b291ba11 JB |
4944 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
4945 | struct ieee80211_local *local = sdata->local; | |
9abf4e49 FF |
4946 | struct sta_info *sta; |
4947 | unsigned long timeout; | |
b291ba11 | 4948 | |
5bd5666d JB |
4949 | if (WARN_ON(sdata->vif.valid_links)) |
4950 | return; | |
4951 | ||
bfd8403a JB |
4952 | if (sdata->vif.bss_conf.csa_active && |
4953 | !sdata->deflink.u.mgd.csa_waiting_bcn) | |
e5593f56 MK |
4954 | return; |
4955 | ||
b65567b0 | 4956 | sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr); |
9abf4e49 FF |
4957 | if (!sta) |
4958 | return; | |
4959 | ||
046d2e7c S |
4960 | timeout = sta->deflink.status_stats.last_ack; |
4961 | if (time_before(sta->deflink.status_stats.last_ack, sta->deflink.rx_stats.last_rx)) | |
4962 | timeout = sta->deflink.rx_stats.last_rx; | |
9abf4e49 FF |
4963 | timeout += IEEE80211_CONNECTION_IDLE_TIME; |
4964 | ||
7d73cd94 BG |
4965 | /* If timeout is after now, then update timer to fire at |
4966 | * the later date, but do not actually probe at this time. | |
4967 | */ | |
4968 | if (time_is_after_jiffies(timeout)) { | |
9abf4e49 FF |
4969 | mod_timer(&ifmgd->conn_mon_timer, round_jiffies_up(timeout)); |
4970 | return; | |
4971 | } | |
4972 | ||
42935eca | 4973 | ieee80211_queue_work(&local->hw, &ifmgd->monitor_work); |
b291ba11 JB |
4974 | } |
4975 | ||
4976 | static void ieee80211_sta_monitor_work(struct work_struct *work) | |
4977 | { | |
4978 | struct ieee80211_sub_if_data *sdata = | |
4979 | container_of(work, struct ieee80211_sub_if_data, | |
4980 | u.mgd.monitor_work); | |
4981 | ||
4982 | ieee80211_mgd_probe_ap(sdata, false); | |
4983 | } | |
4984 | ||
9c6bd790 JB |
4985 | static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) |
4986 | { | |
ad935687 | 4987 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { |
925e64c3 | 4988 | __ieee80211_stop_poll(sdata); |
ad935687 | 4989 | |
b291ba11 | 4990 | /* let's probe the connection once */ |
30686bf7 | 4991 | if (!ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) |
494f1fe5 EP |
4992 | ieee80211_queue_work(&sdata->local->hw, |
4993 | &sdata->u.mgd.monitor_work); | |
ad935687 | 4994 | } |
9c6bd790 | 4995 | } |
f0706e82 | 4996 | |
b8360ab8 | 4997 | #ifdef CONFIG_PM |
1a1cb744 JB |
4998 | void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata) |
4999 | { | |
5000 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
5001 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; | |
5002 | ||
5003 | sdata_lock(sdata); | |
5004 | ||
c52666ae EG |
5005 | if (ifmgd->auth_data || ifmgd->assoc_data) { |
5006 | const u8 *bssid = ifmgd->auth_data ? | |
5007 | ifmgd->auth_data->bss->bssid : | |
5008 | ifmgd->assoc_data->bss->bssid; | |
5009 | ||
1a1cb744 | 5010 | /* |
c52666ae EG |
5011 | * If we are trying to authenticate / associate while suspending, |
5012 | * cfg80211 won't know and won't actually abort those attempts, | |
5013 | * thus we need to do that ourselves. | |
1a1cb744 | 5014 | */ |
4b08d1b6 | 5015 | ieee80211_send_deauth_disassoc(sdata, bssid, bssid, |
1a1cb744 JB |
5016 | IEEE80211_STYPE_DEAUTH, |
5017 | WLAN_REASON_DEAUTH_LEAVING, | |
5018 | false, frame_buf); | |
c52666ae | 5019 | if (ifmgd->assoc_data) |
afa2d659 | 5020 | ieee80211_destroy_assoc_data(sdata, ASSOC_ABANDON); |
c52666ae EG |
5021 | if (ifmgd->auth_data) |
5022 | ieee80211_destroy_auth_data(sdata, false); | |
1a1cb744 | 5023 | cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf, |
3bb02143 JB |
5024 | IEEE80211_DEAUTH_FRAME_LEN, |
5025 | false); | |
1a1cb744 JB |
5026 | } |
5027 | ||
be72afe0 JB |
5028 | /* This is a bit of a hack - we should find a better and more generic |
5029 | * solution to this. Normally when suspending, cfg80211 will in fact | |
5030 | * deauthenticate. However, it doesn't (and cannot) stop an ongoing | |
5031 | * auth (not so important) or assoc (this is the problem) process. | |
5032 | * | |
5033 | * As a consequence, it can happen that we are in the process of both | |
5034 | * associating and suspending, and receive an association response | |
5035 | * after cfg80211 has checked if it needs to disconnect, but before | |
5036 | * we actually set the flag to drop incoming frames. This will then | |
5037 | * cause the workqueue flush to process the association response in | |
5038 | * the suspend, resulting in a successful association just before it | |
5039 | * tries to remove the interface from the driver, which now though | |
5040 | * has a channel context assigned ... this results in issues. | |
5041 | * | |
5042 | * To work around this (for now) simply deauth here again if we're | |
5043 | * now connected. | |
5044 | */ | |
5045 | if (ifmgd->associated && !sdata->local->wowlan) { | |
5046 | u8 bssid[ETH_ALEN]; | |
5047 | struct cfg80211_deauth_request req = { | |
5048 | .reason_code = WLAN_REASON_DEAUTH_LEAVING, | |
5049 | .bssid = bssid, | |
5050 | }; | |
5051 | ||
b65567b0 | 5052 | memcpy(bssid, sdata->vif.cfg.ap_addr, ETH_ALEN); |
be72afe0 JB |
5053 | ieee80211_mgd_deauth(sdata, &req); |
5054 | } | |
5055 | ||
1a1cb744 JB |
5056 | sdata_unlock(sdata); |
5057 | } | |
3fa5a0f5 | 5058 | #endif |
1a1cb744 | 5059 | |
b8360ab8 JB |
5060 | void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) |
5061 | { | |
5062 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
5063 | ||
8d61ffa5 | 5064 | sdata_lock(sdata); |
b8360ab8 | 5065 | if (!ifmgd->associated) { |
8d61ffa5 | 5066 | sdata_unlock(sdata); |
b8360ab8 JB |
5067 | return; |
5068 | } | |
5069 | ||
5070 | if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) { | |
5071 | sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME; | |
5072 | mlme_dbg(sdata, "driver requested disconnect after resume\n"); | |
5073 | ieee80211_sta_connection_lost(sdata, | |
b8360ab8 JB |
5074 | WLAN_REASON_UNSPECIFIED, |
5075 | true); | |
8d61ffa5 | 5076 | sdata_unlock(sdata); |
b8360ab8 JB |
5077 | return; |
5078 | } | |
7d352ccf YC |
5079 | |
5080 | if (sdata->flags & IEEE80211_SDATA_DISCONNECT_HW_RESTART) { | |
5081 | sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_HW_RESTART; | |
5082 | mlme_dbg(sdata, "driver requested disconnect after hardware restart\n"); | |
5083 | ieee80211_sta_connection_lost(sdata, | |
7d352ccf YC |
5084 | WLAN_REASON_UNSPECIFIED, |
5085 | true); | |
5086 | sdata_unlock(sdata); | |
5087 | return; | |
5088 | } | |
5089 | ||
8d61ffa5 | 5090 | sdata_unlock(sdata); |
b8360ab8 | 5091 | } |
b8360ab8 | 5092 | |
94ddc3b5 JB |
5093 | static void ieee80211_request_smps_mgd_work(struct work_struct *work) |
5094 | { | |
5095 | struct ieee80211_link_data *link = | |
5096 | container_of(work, struct ieee80211_link_data, | |
5097 | u.mgd.request_smps_work); | |
5098 | ||
5099 | sdata_lock(link->sdata); | |
5100 | __ieee80211_request_smps_mgd(link->sdata, link, | |
5101 | link->u.mgd.driver_smps_mode); | |
5102 | sdata_unlock(link->sdata); | |
5103 | } | |
5104 | ||
9c6bd790 JB |
5105 | /* interface setup */ |
5106 | void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) | |
f0706e82 | 5107 | { |
b2e8434f | 5108 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
988c0f72 | 5109 | |
b291ba11 | 5110 | INIT_WORK(&ifmgd->monitor_work, ieee80211_sta_monitor_work); |
1e4dcd01 JO |
5111 | INIT_WORK(&ifmgd->beacon_connection_loss_work, |
5112 | ieee80211_beacon_connection_loss_work); | |
882a7c69 JB |
5113 | INIT_WORK(&ifmgd->csa_connection_drop_work, |
5114 | ieee80211_csa_connection_drop_work); | |
81dd2b88 AN |
5115 | INIT_DELAYED_WORK(&ifmgd->tdls_peer_del_work, |
5116 | ieee80211_tdls_peer_del_work); | |
34f11cd3 KC |
5117 | timer_setup(&ifmgd->timer, ieee80211_sta_timer, 0); |
5118 | timer_setup(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer, 0); | |
5119 | timer_setup(&ifmgd->conn_mon_timer, ieee80211_sta_conn_mon_timer, 0); | |
02219b3a JB |
5120 | INIT_DELAYED_WORK(&ifmgd->tx_tspec_wk, |
5121 | ieee80211_sta_handle_tspec_ac_params_wk); | |
9c6bd790 | 5122 | |
ab1faead | 5123 | ifmgd->flags = 0; |
1478acb3 | 5124 | ifmgd->powersave = sdata->wdev.ps; |
219c3867 AB |
5125 | ifmgd->uapsd_queues = sdata->local->hw.uapsd_queues; |
5126 | ifmgd->uapsd_max_sp_len = sdata->local->hw.uapsd_max_sp_len; | |
1277b4a9 LK |
5127 | /* Setup TDLS data */ |
5128 | spin_lock_init(&ifmgd->teardown_lock); | |
5129 | ifmgd->teardown_skb = NULL; | |
5130 | ifmgd->orig_teardown_skb = NULL; | |
f0706e82 JB |
5131 | } |
5132 | ||
b2e8434f JB |
5133 | void ieee80211_mgd_setup_link(struct ieee80211_link_data *link) |
5134 | { | |
5135 | struct ieee80211_local *local = link->sdata->local; | |
5136 | ||
5137 | link->u.mgd.p2p_noa_index = -1; | |
5138 | link->u.mgd.conn_flags = 0; | |
5139 | link->conf->bssid = link->u.mgd.bssid; | |
5140 | ||
5141 | INIT_WORK(&link->u.mgd.request_smps_work, | |
5142 | ieee80211_request_smps_mgd_work); | |
5143 | if (local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) | |
5144 | link->u.mgd.req_smps = IEEE80211_SMPS_AUTOMATIC; | |
5145 | else | |
5146 | link->u.mgd.req_smps = IEEE80211_SMPS_OFF; | |
5bd5666d JB |
5147 | |
5148 | INIT_WORK(&link->u.mgd.chswitch_work, ieee80211_chswitch_work); | |
5149 | timer_setup(&link->u.mgd.chswitch_timer, ieee80211_chswitch_timer, 0); | |
b2e8434f JB |
5150 | } |
5151 | ||
77fdaa12 JB |
5152 | /* scan finished notification */ |
5153 | void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) | |
60f8b39c | 5154 | { |
31ee67a1 | 5155 | struct ieee80211_sub_if_data *sdata; |
60f8b39c | 5156 | |
77fdaa12 JB |
5157 | /* Restart STA timers */ |
5158 | rcu_read_lock(); | |
370bd005 BG |
5159 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { |
5160 | if (ieee80211_sdata_running(sdata)) | |
5161 | ieee80211_restart_sta_timer(sdata); | |
5162 | } | |
77fdaa12 JB |
5163 | rcu_read_unlock(); |
5164 | } | |
60f8b39c | 5165 | |
5bd5666d | 5166 | static u8 ieee80211_max_rx_chains(struct ieee80211_link_data *link, |
f39b7d62 | 5167 | struct cfg80211_bss *cbss) |
f2d9d270 | 5168 | { |
f39b7d62 | 5169 | struct ieee80211_he_mcs_nss_supp *he_mcs_nss_supp; |
b3c1906e | 5170 | const struct element *ht_cap_elem, *vht_cap_elem; |
f39b7d62 | 5171 | const struct cfg80211_bss_ies *ies; |
f2d9d270 JB |
5172 | const struct ieee80211_ht_cap *ht_cap; |
5173 | const struct ieee80211_vht_cap *vht_cap; | |
f39b7d62 MG |
5174 | const struct ieee80211_he_cap_elem *he_cap; |
5175 | const struct element *he_cap_elem; | |
5176 | u16 mcs_80_map, mcs_160_map; | |
5177 | int i, mcs_nss_size; | |
5178 | bool support_160; | |
f2d9d270 JB |
5179 | u8 chains = 1; |
5180 | ||
5bd5666d | 5181 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT) |
f2d9d270 JB |
5182 | return chains; |
5183 | ||
b3c1906e JB |
5184 | ht_cap_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_HT_CAPABILITY); |
5185 | if (ht_cap_elem && ht_cap_elem->datalen >= sizeof(*ht_cap)) { | |
5186 | ht_cap = (void *)ht_cap_elem->data; | |
f2d9d270 JB |
5187 | chains = ieee80211_mcs_to_chains(&ht_cap->mcs); |
5188 | /* | |
5189 | * TODO: use "Tx Maximum Number Spatial Streams Supported" and | |
5190 | * "Tx Unequal Modulation Supported" fields. | |
5191 | */ | |
5192 | } | |
5193 | ||
5bd5666d | 5194 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) |
f2d9d270 JB |
5195 | return chains; |
5196 | ||
b3c1906e JB |
5197 | vht_cap_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_VHT_CAPABILITY); |
5198 | if (vht_cap_elem && vht_cap_elem->datalen >= sizeof(*vht_cap)) { | |
f2d9d270 JB |
5199 | u8 nss; |
5200 | u16 tx_mcs_map; | |
5201 | ||
b3c1906e | 5202 | vht_cap = (void *)vht_cap_elem->data; |
f2d9d270 JB |
5203 | tx_mcs_map = le16_to_cpu(vht_cap->supp_mcs.tx_mcs_map); |
5204 | for (nss = 8; nss > 0; nss--) { | |
5205 | if (((tx_mcs_map >> (2 * (nss - 1))) & 3) != | |
5206 | IEEE80211_VHT_MCS_NOT_SUPPORTED) | |
5207 | break; | |
5208 | } | |
5209 | /* TODO: use "Tx Highest Supported Long GI Data Rate" field? */ | |
5210 | chains = max(chains, nss); | |
5211 | } | |
5212 | ||
5bd5666d | 5213 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) |
f39b7d62 MG |
5214 | return chains; |
5215 | ||
5216 | ies = rcu_dereference(cbss->ies); | |
5217 | he_cap_elem = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, | |
5218 | ies->data, ies->len); | |
5219 | ||
5220 | if (!he_cap_elem || he_cap_elem->datalen < sizeof(*he_cap)) | |
5221 | return chains; | |
5222 | ||
5223 | /* skip one byte ext_tag_id */ | |
5224 | he_cap = (void *)(he_cap_elem->data + 1); | |
5225 | mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap); | |
5226 | ||
5227 | /* invalid HE IE */ | |
5228 | if (he_cap_elem->datalen < 1 + mcs_nss_size + sizeof(*he_cap)) | |
5229 | return chains; | |
5230 | ||
5231 | /* mcs_nss is right after he_cap info */ | |
5232 | he_mcs_nss_supp = (void *)(he_cap + 1); | |
5233 | ||
5234 | mcs_80_map = le16_to_cpu(he_mcs_nss_supp->tx_mcs_80); | |
5235 | ||
5236 | for (i = 7; i >= 0; i--) { | |
5237 | u8 mcs_80 = mcs_80_map >> (2 * i) & 3; | |
5238 | ||
5239 | if (mcs_80 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
5240 | chains = max_t(u8, chains, i + 1); | |
5241 | break; | |
5242 | } | |
5243 | } | |
5244 | ||
5245 | support_160 = he_cap->phy_cap_info[0] & | |
5246 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; | |
5247 | ||
5248 | if (!support_160) | |
5249 | return chains; | |
5250 | ||
5251 | mcs_160_map = le16_to_cpu(he_mcs_nss_supp->tx_mcs_160); | |
5252 | for (i = 7; i >= 0; i--) { | |
5253 | u8 mcs_160 = mcs_160_map >> (2 * i) & 3; | |
5254 | ||
5255 | if (mcs_160 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
5256 | chains = max_t(u8, chains, i + 1); | |
5257 | break; | |
5258 | } | |
5259 | } | |
5260 | ||
f2d9d270 JB |
5261 | return chains; |
5262 | } | |
5263 | ||
97634ef4 MG |
5264 | static bool |
5265 | ieee80211_verify_peer_he_mcs_support(struct ieee80211_sub_if_data *sdata, | |
5266 | const struct cfg80211_bss_ies *ies, | |
5267 | const struct ieee80211_he_operation *he_op) | |
5268 | { | |
5269 | const struct element *he_cap_elem; | |
5270 | const struct ieee80211_he_cap_elem *he_cap; | |
5271 | struct ieee80211_he_mcs_nss_supp *he_mcs_nss_supp; | |
5272 | u16 mcs_80_map_tx, mcs_80_map_rx; | |
5273 | u16 ap_min_req_set; | |
5274 | int mcs_nss_size; | |
5275 | int nss; | |
5276 | ||
5277 | he_cap_elem = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, | |
5278 | ies->data, ies->len); | |
5279 | ||
5280 | /* invalid HE IE */ | |
5281 | if (!he_cap_elem || he_cap_elem->datalen < 1 + sizeof(*he_cap)) { | |
5282 | sdata_info(sdata, | |
5283 | "Invalid HE elem, Disable HE\n"); | |
5284 | return false; | |
5285 | } | |
5286 | ||
5287 | /* skip one byte ext_tag_id */ | |
5288 | he_cap = (void *)(he_cap_elem->data + 1); | |
5289 | mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap); | |
5290 | ||
5291 | /* invalid HE IE */ | |
5292 | if (he_cap_elem->datalen < 1 + sizeof(*he_cap) + mcs_nss_size) { | |
5293 | sdata_info(sdata, | |
5294 | "Invalid HE elem with nss size, Disable HE\n"); | |
5295 | return false; | |
5296 | } | |
5297 | ||
5298 | /* mcs_nss is right after he_cap info */ | |
5299 | he_mcs_nss_supp = (void *)(he_cap + 1); | |
5300 | ||
5301 | mcs_80_map_tx = le16_to_cpu(he_mcs_nss_supp->tx_mcs_80); | |
5302 | mcs_80_map_rx = le16_to_cpu(he_mcs_nss_supp->rx_mcs_80); | |
5303 | ||
5304 | /* P802.11-REVme/D0.3 | |
5305 | * 27.1.1 Introduction to the HE PHY | |
5306 | * ... | |
5307 | * An HE STA shall support the following features: | |
5308 | * ... | |
5309 | * Single spatial stream HE-MCSs 0 to 7 (transmit and receive) in all | |
5310 | * supported channel widths for HE SU PPDUs | |
5311 | */ | |
5312 | if ((mcs_80_map_tx & 0x3) == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
5313 | (mcs_80_map_rx & 0x3) == IEEE80211_HE_MCS_NOT_SUPPORTED) { | |
5314 | sdata_info(sdata, | |
5315 | "Missing mandatory rates for 1 Nss, rx 0x%x, tx 0x%x, disable HE\n", | |
5316 | mcs_80_map_tx, mcs_80_map_rx); | |
5317 | return false; | |
5318 | } | |
5319 | ||
5320 | if (!he_op) | |
5321 | return true; | |
5322 | ||
5323 | ap_min_req_set = le16_to_cpu(he_op->he_mcs_nss_set); | |
5324 | ||
5325 | /* make sure the AP is consistent with itself | |
5326 | * | |
5327 | * P802.11-REVme/D0.3 | |
5328 | * 26.17.1 Basic HE BSS operation | |
5329 | * | |
5330 | * A STA that is operating in an HE BSS shall be able to receive and | |
5331 | * transmit at each of the <HE-MCS, NSS> tuple values indicated by the | |
5332 | * Basic HE-MCS And NSS Set field of the HE Operation parameter of the | |
5333 | * MLME-START.request primitive and shall be able to receive at each of | |
5334 | * the <HE-MCS, NSS> tuple values indicated by the Supported HE-MCS and | |
5335 | * NSS Set field in the HE Capabilities parameter of the MLMESTART.request | |
5336 | * primitive | |
5337 | */ | |
5338 | for (nss = 8; nss > 0; nss--) { | |
5339 | u8 ap_op_val = (ap_min_req_set >> (2 * (nss - 1))) & 3; | |
5340 | u8 ap_rx_val; | |
5341 | u8 ap_tx_val; | |
5342 | ||
5343 | if (ap_op_val == IEEE80211_HE_MCS_NOT_SUPPORTED) | |
5344 | continue; | |
5345 | ||
5346 | ap_rx_val = (mcs_80_map_rx >> (2 * (nss - 1))) & 3; | |
5347 | ap_tx_val = (mcs_80_map_tx >> (2 * (nss - 1))) & 3; | |
5348 | ||
5349 | if (ap_rx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
5350 | ap_tx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
5351 | ap_rx_val < ap_op_val || ap_tx_val < ap_op_val) { | |
5352 | sdata_info(sdata, | |
5353 | "Invalid rates for %d Nss, rx %d, tx %d oper %d, disable HE\n", | |
5354 | nss, ap_rx_val, ap_rx_val, ap_op_val); | |
5355 | return false; | |
5356 | } | |
5357 | } | |
5358 | ||
5359 | return true; | |
5360 | } | |
5361 | ||
41cbb0f5 | 5362 | static bool |
bac2fd3d JB |
5363 | ieee80211_verify_sta_he_mcs_support(struct ieee80211_sub_if_data *sdata, |
5364 | struct ieee80211_supported_band *sband, | |
41cbb0f5 LC |
5365 | const struct ieee80211_he_operation *he_op) |
5366 | { | |
5367 | const struct ieee80211_sta_he_cap *sta_he_cap = | |
bac2fd3d JB |
5368 | ieee80211_get_he_iftype_cap(sband, |
5369 | ieee80211_vif_type_p2p(&sdata->vif)); | |
47aa7861 | 5370 | u16 ap_min_req_set; |
41cbb0f5 LC |
5371 | int i; |
5372 | ||
5373 | if (!sta_he_cap || !he_op) | |
5374 | return false; | |
5375 | ||
47aa7861 GS |
5376 | ap_min_req_set = le16_to_cpu(he_op->he_mcs_nss_set); |
5377 | ||
41cbb0f5 LC |
5378 | /* Need to go over for 80MHz, 160MHz and for 80+80 */ |
5379 | for (i = 0; i < 3; i++) { | |
5380 | const struct ieee80211_he_mcs_nss_supp *sta_mcs_nss_supp = | |
5381 | &sta_he_cap->he_mcs_nss_supp; | |
5382 | u16 sta_mcs_map_rx = | |
5383 | le16_to_cpu(((__le16 *)sta_mcs_nss_supp)[2 * i]); | |
5384 | u16 sta_mcs_map_tx = | |
5385 | le16_to_cpu(((__le16 *)sta_mcs_nss_supp)[2 * i + 1]); | |
5386 | u8 nss; | |
5387 | bool verified = true; | |
5388 | ||
5389 | /* | |
5390 | * For each band there is a maximum of 8 spatial streams | |
5391 | * possible. Each of the sta_mcs_map_* is a 16-bit struct built | |
5392 | * of 2 bits per NSS (1-8), with the values defined in enum | |
5393 | * ieee80211_he_mcs_support. Need to make sure STA TX and RX | |
5394 | * capabilities aren't less than the AP's minimum requirements | |
5395 | * for this HE BSS per SS. | |
5396 | * It is enough to find one such band that meets the reqs. | |
5397 | */ | |
5398 | for (nss = 8; nss > 0; nss--) { | |
5399 | u8 sta_rx_val = (sta_mcs_map_rx >> (2 * (nss - 1))) & 3; | |
5400 | u8 sta_tx_val = (sta_mcs_map_tx >> (2 * (nss - 1))) & 3; | |
5401 | u8 ap_val = (ap_min_req_set >> (2 * (nss - 1))) & 3; | |
5402 | ||
5403 | if (ap_val == IEEE80211_HE_MCS_NOT_SUPPORTED) | |
5404 | continue; | |
5405 | ||
5406 | /* | |
5407 | * Make sure the HE AP doesn't require MCSs that aren't | |
6ad1dce5 MG |
5408 | * supported by the client as required by spec |
5409 | * | |
5410 | * P802.11-REVme/D0.3 | |
5411 | * 26.17.1 Basic HE BSS operation | |
5412 | * | |
5413 | * An HE STA shall not attempt to join * (MLME-JOIN.request primitive) | |
5414 | * a BSS, unless it supports (i.e., is able to both transmit and | |
5415 | * receive using) all of the <HE-MCS, NSS> tuples in the basic | |
5416 | * HE-MCS and NSS set. | |
41cbb0f5 LC |
5417 | */ |
5418 | if (sta_rx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
5419 | sta_tx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
5420 | (ap_val > sta_rx_val) || (ap_val > sta_tx_val)) { | |
5421 | verified = false; | |
5422 | break; | |
5423 | } | |
5424 | } | |
5425 | ||
5426 | if (verified) | |
5427 | return true; | |
5428 | } | |
5429 | ||
5430 | /* If here, STA doesn't meet AP's HE min requirements */ | |
5431 | return false; | |
5432 | } | |
5433 | ||
b17166a7 | 5434 | static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, |
5bd5666d | 5435 | struct ieee80211_link_data *link, |
b17166a7 | 5436 | struct cfg80211_bss *cbss) |
a1cf775d JB |
5437 | { |
5438 | struct ieee80211_local *local = sdata->local; | |
53b954ee | 5439 | const struct ieee80211_ht_cap *ht_cap = NULL; |
24398e39 | 5440 | const struct ieee80211_ht_operation *ht_oper = NULL; |
f2d9d270 | 5441 | const struct ieee80211_vht_operation *vht_oper = NULL; |
41cbb0f5 | 5442 | const struct ieee80211_he_operation *he_oper = NULL; |
5dca295d | 5443 | const struct ieee80211_eht_operation *eht_oper = NULL; |
1d00ce80 | 5444 | const struct ieee80211_s1g_oper_ie *s1g_oper = NULL; |
24398e39 | 5445 | struct ieee80211_supported_band *sband; |
4bf88530 | 5446 | struct cfg80211_chan_def chandef; |
57fa5e85 | 5447 | bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; |
780a8c9e | 5448 | bool is_5ghz = cbss->channel->band == NL80211_BAND_5GHZ; |
2a333a0d | 5449 | struct ieee80211_bss *bss = (void *)cbss->priv; |
37123c3b WG |
5450 | struct ieee802_11_elems *elems; |
5451 | const struct cfg80211_bss_ies *ies; | |
f2d9d270 | 5452 | int ret; |
52a45f38 AN |
5453 | u32 i; |
5454 | bool have_80mhz; | |
a1cf775d | 5455 | |
37123c3b WG |
5456 | rcu_read_lock(); |
5457 | ||
5458 | ies = rcu_dereference(cbss->ies); | |
5459 | elems = ieee802_11_parse_elems(ies->data, ies->len, false, | |
5460 | NULL, NULL); | |
5461 | if (!elems) { | |
5462 | rcu_read_unlock(); | |
5463 | return -ENOMEM; | |
5464 | } | |
5465 | ||
24398e39 JB |
5466 | sband = local->hw.wiphy->bands[cbss->channel->band]; |
5467 | ||
5bd5666d JB |
5468 | link->u.mgd.conn_flags &= ~(IEEE80211_CONN_DISABLE_40MHZ | |
5469 | IEEE80211_CONN_DISABLE_80P80MHZ | | |
5470 | IEEE80211_CONN_DISABLE_160MHZ); | |
f2d9d270 | 5471 | |
75e296e9 | 5472 | /* disable HT/VHT/HE if we don't support them */ |
57fa5e85 | 5473 | if (!sband->ht_cap.ht_supported && !is_6ghz) { |
5dca295d | 5474 | mlme_dbg(sdata, "HT not supported, disabling HT/VHT/HE/EHT\n"); |
5bd5666d JB |
5475 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HT; |
5476 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
5477 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
5478 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
75e296e9 JB |
5479 | } |
5480 | ||
780a8c9e | 5481 | if (!sband->vht_cap.vht_supported && is_5ghz) { |
5dca295d | 5482 | mlme_dbg(sdata, "VHT not supported, disabling VHT/HE/EHT\n"); |
5bd5666d JB |
5483 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_VHT; |
5484 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
5485 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
57fa5e85 | 5486 | } |
75e296e9 | 5487 | |
bac2fd3d | 5488 | if (!ieee80211_get_he_iftype_cap(sband, |
636ccdae | 5489 | ieee80211_vif_type_p2p(&sdata->vif))) { |
5dca295d | 5490 | mlme_dbg(sdata, "HE not supported, disabling HE and EHT\n"); |
5bd5666d JB |
5491 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HE; |
5492 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
5dca295d IP |
5493 | } |
5494 | ||
5495 | if (!ieee80211_get_eht_iftype_cap(sband, | |
5496 | ieee80211_vif_type_p2p(&sdata->vif))) { | |
5497 | mlme_dbg(sdata, "EHT not supported, disabling EHT\n"); | |
5bd5666d | 5498 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_EHT; |
636ccdae | 5499 | } |
75e296e9 | 5500 | |
5bd5666d | 5501 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT) && !is_6ghz) { |
37123c3b WG |
5502 | ht_oper = elems->ht_operation; |
5503 | ht_cap = elems->ht_cap_elem; | |
53b954ee EP |
5504 | |
5505 | if (!ht_cap) { | |
5bd5666d | 5506 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HT; |
08e6effa JB |
5507 | ht_oper = NULL; |
5508 | } | |
24398e39 JB |
5509 | } |
5510 | ||
5bd5666d | 5511 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) && !is_6ghz) { |
37123c3b | 5512 | vht_oper = elems->vht_operation; |
f2d9d270 JB |
5513 | if (vht_oper && !ht_oper) { |
5514 | vht_oper = NULL; | |
bdcbd8e0 | 5515 | sdata_info(sdata, |
75e296e9 | 5516 | "AP advertised VHT without HT, disabling HT/VHT/HE\n"); |
5bd5666d JB |
5517 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HT; |
5518 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
5519 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
5520 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
24398e39 | 5521 | } |
08e6effa | 5522 | |
37123c3b | 5523 | if (!elems->vht_cap_elem) { |
636ccdae JB |
5524 | sdata_info(sdata, |
5525 | "bad VHT capabilities, disabling VHT\n"); | |
5bd5666d | 5526 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_VHT; |
08e6effa JB |
5527 | vht_oper = NULL; |
5528 | } | |
24398e39 JB |
5529 | } |
5530 | ||
5bd5666d | 5531 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE)) { |
37123c3b | 5532 | he_oper = elems->he_operation; |
41cbb0f5 | 5533 | |
63214f02 WG |
5534 | if (is_6ghz) { |
5535 | struct ieee80211_bss_conf *bss_conf; | |
5536 | u8 i, j = 0; | |
5537 | ||
5bd5666d | 5538 | bss_conf = link->conf; |
63214f02 WG |
5539 | |
5540 | if (elems->pwr_constr_elem) | |
5541 | bss_conf->pwr_reduction = *elems->pwr_constr_elem; | |
5542 | ||
5543 | BUILD_BUG_ON(ARRAY_SIZE(bss_conf->tx_pwr_env) != | |
5544 | ARRAY_SIZE(elems->tx_pwr_env)); | |
5545 | ||
5546 | for (i = 0; i < elems->tx_pwr_env_num; i++) { | |
5547 | if (elems->tx_pwr_env_len[i] > | |
5548 | sizeof(bss_conf->tx_pwr_env[j])) | |
5549 | continue; | |
5550 | ||
5551 | bss_conf->tx_pwr_env_num++; | |
5552 | memcpy(&bss_conf->tx_pwr_env[j], elems->tx_pwr_env[i], | |
5553 | elems->tx_pwr_env_len[i]); | |
5554 | j++; | |
5555 | } | |
5556 | } | |
5557 | ||
97634ef4 MG |
5558 | if (!ieee80211_verify_peer_he_mcs_support(sdata, ies, he_oper) || |
5559 | !ieee80211_verify_sta_he_mcs_support(sdata, sband, he_oper)) | |
5bd5666d JB |
5560 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HE | |
5561 | IEEE80211_CONN_DISABLE_EHT; | |
5dca295d IP |
5562 | } |
5563 | ||
5564 | /* | |
5565 | * EHT requires HE to be supported as well. Specifically for 6 GHz | |
5566 | * channels, the operation channel information can only be deduced from | |
5567 | * both the 6 GHz operation information (from the HE operation IE) and | |
5568 | * EHT operation. | |
5569 | */ | |
5bd5666d | 5570 | if (!(link->u.mgd.conn_flags & |
ba323e29 JB |
5571 | (IEEE80211_CONN_DISABLE_HE | |
5572 | IEEE80211_CONN_DISABLE_EHT)) && | |
5573 | he_oper) { | |
5dca295d IP |
5574 | const struct cfg80211_bss_ies *ies; |
5575 | const u8 *eht_oper_ie; | |
5576 | ||
5577 | ies = rcu_dereference(cbss->ies); | |
5578 | eht_oper_ie = cfg80211_find_ext_ie(WLAN_EID_EXT_EHT_OPERATION, | |
5579 | ies->data, ies->len); | |
5580 | if (eht_oper_ie && eht_oper_ie[1] >= | |
5581 | 1 + sizeof(struct ieee80211_eht_operation)) | |
5582 | eht_oper = (void *)(eht_oper_ie + 3); | |
5583 | else | |
5584 | eht_oper = NULL; | |
41cbb0f5 LC |
5585 | } |
5586 | ||
52a45f38 AN |
5587 | /* Allow VHT if at least one channel on the sband supports 80 MHz */ |
5588 | have_80mhz = false; | |
5589 | for (i = 0; i < sband->n_channels; i++) { | |
5590 | if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | | |
5591 | IEEE80211_CHAN_NO_80MHZ)) | |
5592 | continue; | |
5593 | ||
5594 | have_80mhz = true; | |
5595 | break; | |
5596 | } | |
5597 | ||
636ccdae JB |
5598 | if (!have_80mhz) { |
5599 | sdata_info(sdata, "80 MHz not supported, disabling VHT\n"); | |
5bd5666d | 5600 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_VHT; |
636ccdae | 5601 | } |
52a45f38 | 5602 | |
1d00ce80 | 5603 | if (sband->band == NL80211_BAND_S1GHZ) { |
37123c3b WG |
5604 | s1g_oper = elems->s1g_oper; |
5605 | if (!s1g_oper) | |
1d00ce80 TP |
5606 | sdata_info(sdata, |
5607 | "AP missing S1G operation element?\n"); | |
5608 | } | |
5609 | ||
5bd5666d JB |
5610 | link->u.mgd.conn_flags |= |
5611 | ieee80211_determine_chantype(link, sband, | |
ba323e29 JB |
5612 | cbss->channel, |
5613 | bss->vht_cap_info, | |
5614 | ht_oper, vht_oper, | |
5615 | he_oper, eht_oper, | |
5616 | s1g_oper, | |
5617 | &chandef, false); | |
04ecd257 | 5618 | |
5bd5666d JB |
5619 | link->needed_rx_chains = |
5620 | min(ieee80211_max_rx_chains(link, cbss), local->rx_chains); | |
24398e39 | 5621 | |
9caf0364 | 5622 | rcu_read_unlock(); |
37123c3b WG |
5623 | /* the element data was RCU protected so no longer valid anyway */ |
5624 | kfree(elems); | |
5625 | elems = NULL; | |
9caf0364 | 5626 | |
5bd5666d | 5627 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE && is_6ghz) { |
57fa5e85 JB |
5628 | sdata_info(sdata, "Rejecting non-HE 6/7 GHz connection"); |
5629 | return -EINVAL; | |
5630 | } | |
5631 | ||
04ecd257 | 5632 | /* will change later if needed */ |
5bd5666d | 5633 | link->smps_mode = IEEE80211_SMPS_OFF; |
04ecd257 | 5634 | |
34a3740d | 5635 | mutex_lock(&local->mtx); |
f2d9d270 JB |
5636 | /* |
5637 | * If this fails (possibly due to channel context sharing | |
5638 | * on incompatible channels, e.g. 80+80 and 160 sharing the | |
5639 | * same control channel) try to use a smaller bandwidth. | |
5640 | */ | |
5bd5666d | 5641 | ret = ieee80211_link_use_channel(link, &chandef, |
b4f85443 | 5642 | IEEE80211_CHANCTX_SHARED); |
0418a445 SW |
5643 | |
5644 | /* don't downgrade for 5 and 10 MHz channels, though. */ | |
5645 | if (chandef.width == NL80211_CHAN_WIDTH_5 || | |
5646 | chandef.width == NL80211_CHAN_WIDTH_10) | |
34a3740d | 5647 | goto out; |
0418a445 | 5648 | |
d601cd8d | 5649 | while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) { |
5bd5666d | 5650 | link->u.mgd.conn_flags |= |
ba323e29 | 5651 | ieee80211_chandef_downgrade(&chandef); |
5bd5666d | 5652 | ret = ieee80211_link_use_channel(link, &chandef, |
b4f85443 | 5653 | IEEE80211_CHANCTX_SHARED); |
d601cd8d | 5654 | } |
34a3740d JB |
5655 | out: |
5656 | mutex_unlock(&local->mtx); | |
f2d9d270 | 5657 | return ret; |
b17166a7 JB |
5658 | } |
5659 | ||
78ac51f8 SS |
5660 | static bool ieee80211_get_dtim(const struct cfg80211_bss_ies *ies, |
5661 | u8 *dtim_count, u8 *dtim_period) | |
5662 | { | |
5663 | const u8 *tim_ie = cfg80211_find_ie(WLAN_EID_TIM, ies->data, ies->len); | |
5664 | const u8 *idx_ie = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, ies->data, | |
5665 | ies->len); | |
5666 | const struct ieee80211_tim_ie *tim = NULL; | |
5667 | const struct ieee80211_bssid_index *idx; | |
5668 | bool valid = tim_ie && tim_ie[1] >= 2; | |
5669 | ||
5670 | if (valid) | |
5671 | tim = (void *)(tim_ie + 2); | |
5672 | ||
5673 | if (dtim_count) | |
5674 | *dtim_count = valid ? tim->dtim_count : 0; | |
5675 | ||
5676 | if (dtim_period) | |
5677 | *dtim_period = valid ? tim->dtim_period : 0; | |
5678 | ||
5679 | /* Check if value is overridden by non-transmitted profile */ | |
5680 | if (!idx_ie || idx_ie[1] < 3) | |
5681 | return valid; | |
5682 | ||
5683 | idx = (void *)(idx_ie + 2); | |
5684 | ||
5685 | if (dtim_count) | |
5686 | *dtim_count = idx->dtim_count; | |
5687 | ||
5688 | if (dtim_period) | |
5689 | *dtim_period = idx->dtim_period; | |
5690 | ||
5691 | return true; | |
5692 | } | |
5693 | ||
b17166a7 | 5694 | static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, |
c1041f10 CRI |
5695 | struct cfg80211_bss *cbss, bool assoc, |
5696 | bool override) | |
b17166a7 JB |
5697 | { |
5698 | struct ieee80211_local *local = sdata->local; | |
5699 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
5700 | struct ieee80211_bss *bss = (void *)cbss->priv; | |
5701 | struct sta_info *new_sta = NULL; | |
179b8fc7 | 5702 | struct ieee80211_supported_band *sband; |
5bd5666d | 5703 | struct ieee80211_link_data *link = &sdata->deflink; |
c1041f10 | 5704 | bool have_sta = false; |
b17166a7 JB |
5705 | int err; |
5706 | ||
179b8fc7 CRI |
5707 | sband = local->hw.wiphy->bands[cbss->channel->band]; |
5708 | ||
b17166a7 JB |
5709 | if (WARN_ON(!ifmgd->auth_data && !ifmgd->assoc_data)) |
5710 | return -EINVAL; | |
5711 | ||
f8860ce8 LC |
5712 | /* If a reconfig is happening, bail out */ |
5713 | if (local->in_reconfig) | |
5714 | return -EBUSY; | |
5715 | ||
b17166a7 JB |
5716 | if (assoc) { |
5717 | rcu_read_lock(); | |
5718 | have_sta = sta_info_get(sdata, cbss->bssid); | |
5719 | rcu_read_unlock(); | |
5720 | } | |
5721 | ||
5722 | if (!have_sta) { | |
cb71f1d1 | 5723 | new_sta = sta_info_alloc(sdata, cbss->bssid, -1, GFP_KERNEL); |
b17166a7 JB |
5724 | if (!new_sta) |
5725 | return -ENOMEM; | |
5726 | } | |
179b8fc7 | 5727 | |
c87905be JB |
5728 | /* |
5729 | * Set up the information for the new channel before setting the | |
5730 | * new channel. We can't - completely race-free - change the basic | |
5731 | * rates bitmap and the channel (sband) that it refers to, but if | |
5732 | * we set it up before we at least avoid calling into the driver's | |
5733 | * bss_info_changed() method with invalid information (since we do | |
5734 | * call that from changing the channel - only for IDLE and perhaps | |
5735 | * some others, but ...). | |
5736 | * | |
5737 | * So to avoid that, just set up all the new information before the | |
5738 | * channel, but tell the driver to apply it only afterwards, since | |
5739 | * it might need the new channel for that. | |
5740 | */ | |
13e0c8e3 | 5741 | if (new_sta) { |
5d6a1b06 | 5742 | u32 rates = 0, basic_rates = 0; |
68a18ad7 | 5743 | bool have_higher_than_11mbit = false; |
5d6a1b06 | 5744 | int min_rate = INT_MAX, min_rate_index = -1; |
8cef2c9d | 5745 | const struct cfg80211_bss_ies *ies; |
179b8fc7 | 5746 | int shift = ieee80211_vif_get_shift(&sdata->vif); |
5bd5666d JB |
5747 | struct ieee80211_link_sta *link_sta = &new_sta->sta.deflink; |
5748 | ||
5749 | memcpy(link_sta->addr, cbss->bssid, ETH_ALEN); | |
5d6a1b06 | 5750 | |
1d00ce80 | 5751 | /* TODO: S1G Basic Rate Set is expressed elsewhere */ |
12bf8fad TP |
5752 | if (cbss->channel->band == NL80211_BAND_S1GHZ) { |
5753 | ieee80211_s1g_sta_rate_init(new_sta); | |
1d00ce80 | 5754 | goto skip_rates; |
12bf8fad | 5755 | } |
1d00ce80 | 5756 | |
5d6a1b06 JB |
5757 | ieee80211_get_rates(sband, bss->supp_rates, |
5758 | bss->supp_rates_len, | |
5759 | &rates, &basic_rates, | |
5760 | &have_higher_than_11mbit, | |
2103dec1 | 5761 | &min_rate, &min_rate_index, |
44f6d42c | 5762 | shift); |
5d6a1b06 JB |
5763 | |
5764 | /* | |
5765 | * This used to be a workaround for basic rates missing | |
5766 | * in the association response frame. Now that we no | |
5767 | * longer use the basic rates from there, it probably | |
5768 | * doesn't happen any more, but keep the workaround so | |
5769 | * in case some *other* APs are buggy in different ways | |
5770 | * we can connect -- with a warning. | |
302ff8b7 IP |
5771 | * Allow this workaround only in case the AP provided at least |
5772 | * one rate. | |
5d6a1b06 | 5773 | */ |
302ff8b7 IP |
5774 | if (min_rate_index < 0) { |
5775 | sdata_info(sdata, | |
5776 | "No legacy rates in association response\n"); | |
5777 | ||
5778 | sta_info_free(local, new_sta); | |
5779 | return -EINVAL; | |
5780 | } else if (!basic_rates) { | |
bdcbd8e0 JB |
5781 | sdata_info(sdata, |
5782 | "No basic rates, using min rate instead\n"); | |
5d6a1b06 JB |
5783 | basic_rates = BIT(min_rate_index); |
5784 | } | |
5785 | ||
bd718fc1 | 5786 | if (rates) |
5bd5666d | 5787 | link_sta->supp_rates[cbss->channel->band] = rates; |
bd718fc1 JB |
5788 | else |
5789 | sdata_info(sdata, | |
5790 | "No rates found, keeping mandatory only\n"); | |
5791 | ||
5bd5666d | 5792 | link->conf->basic_rates = basic_rates; |
5d6a1b06 JB |
5793 | |
5794 | /* cf. IEEE 802.11 9.2.12 */ | |
57fbcce3 | 5795 | if (cbss->channel->band == NL80211_BAND_2GHZ && |
5d6a1b06 JB |
5796 | have_higher_than_11mbit) |
5797 | sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE; | |
5798 | else | |
5799 | sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE; | |
5800 | ||
1d00ce80 | 5801 | skip_rates: |
5bd5666d | 5802 | memcpy(link->u.mgd.bssid, cbss->bssid, ETH_ALEN); |
5d6a1b06 | 5803 | |
8c358bcd | 5804 | /* set timing information */ |
5bd5666d | 5805 | link->conf->beacon_int = cbss->beacon_interval; |
8cef2c9d | 5806 | rcu_read_lock(); |
ef429dad JB |
5807 | ies = rcu_dereference(cbss->beacon_ies); |
5808 | if (ies) { | |
5bd5666d JB |
5809 | link->conf->sync_tsf = ies->tsf; |
5810 | link->conf->sync_device_ts = | |
ef429dad | 5811 | bss->device_ts_beacon; |
78ac51f8 SS |
5812 | |
5813 | ieee80211_get_dtim(ies, | |
5bd5666d | 5814 | &link->conf->sync_dtim_count, |
78ac51f8 | 5815 | NULL); |
30686bf7 JB |
5816 | } else if (!ieee80211_hw_check(&sdata->local->hw, |
5817 | TIMING_BEACON_ONLY)) { | |
ef429dad JB |
5818 | ies = rcu_dereference(cbss->proberesp_ies); |
5819 | /* must be non-NULL since beacon IEs were NULL */ | |
5bd5666d JB |
5820 | link->conf->sync_tsf = ies->tsf; |
5821 | link->conf->sync_device_ts = | |
ef429dad | 5822 | bss->device_ts_presp; |
5bd5666d | 5823 | link->conf->sync_dtim_count = 0; |
ef429dad | 5824 | } else { |
5bd5666d JB |
5825 | link->conf->sync_tsf = 0; |
5826 | link->conf->sync_device_ts = 0; | |
5827 | link->conf->sync_dtim_count = 0; | |
ef429dad | 5828 | } |
8cef2c9d | 5829 | rcu_read_unlock(); |
c87905be | 5830 | } |
8c358bcd | 5831 | |
c87905be | 5832 | if (new_sta || override) { |
5bd5666d | 5833 | err = ieee80211_prep_channel(sdata, link, cbss); |
c87905be JB |
5834 | if (err) { |
5835 | if (new_sta) | |
5836 | sta_info_free(local, new_sta); | |
5837 | return -EINVAL; | |
5838 | } | |
5839 | } | |
5840 | ||
5841 | if (new_sta) { | |
5842 | /* | |
5843 | * tell driver about BSSID, basic rates and timing | |
5844 | * this was set up above, before setting the channel | |
5845 | */ | |
5bd5666d | 5846 | ieee80211_link_info_change_notify(sdata, link, |
d8675a63 JB |
5847 | BSS_CHANGED_BSSID | |
5848 | BSS_CHANGED_BASIC_RATES | | |
5849 | BSS_CHANGED_BEACON_INT); | |
a1cf775d JB |
5850 | |
5851 | if (assoc) | |
13e0c8e3 | 5852 | sta_info_pre_move_state(new_sta, IEEE80211_STA_AUTH); |
a1cf775d | 5853 | |
13e0c8e3 JB |
5854 | err = sta_info_insert(new_sta); |
5855 | new_sta = NULL; | |
a1cf775d | 5856 | if (err) { |
bdcbd8e0 JB |
5857 | sdata_info(sdata, |
5858 | "failed to insert STA entry for the AP (error %d)\n", | |
5859 | err); | |
a1cf775d JB |
5860 | return err; |
5861 | } | |
5862 | } else | |
5bd5666d | 5863 | WARN_ON_ONCE(!ether_addr_equal(link->u.mgd.bssid, cbss->bssid)); |
a1cf775d | 5864 | |
7d830a19 DS |
5865 | /* Cancel scan to ensure that nothing interferes with connection */ |
5866 | if (local->scanning) | |
5867 | ieee80211_scan_cancel(local); | |
5868 | ||
a1cf775d JB |
5869 | return 0; |
5870 | } | |
5871 | ||
77fdaa12 JB |
5872 | /* config hooks */ |
5873 | int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, | |
5874 | struct cfg80211_auth_request *req) | |
9c6bd790 | 5875 | { |
5bd5666d | 5876 | struct ieee80211_link_data *link = &sdata->deflink; |
66e67e41 JB |
5877 | struct ieee80211_local *local = sdata->local; |
5878 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
5879 | struct ieee80211_mgd_auth_data *auth_data; | |
77fdaa12 | 5880 | u16 auth_alg; |
66e67e41 | 5881 | int err; |
efb543e6 | 5882 | bool cont_auth; |
66e67e41 JB |
5883 | |
5884 | /* prepare auth data structure */ | |
9c6bd790 | 5885 | |
77fdaa12 JB |
5886 | switch (req->auth_type) { |
5887 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
5888 | auth_alg = WLAN_AUTH_OPEN; | |
5889 | break; | |
5890 | case NL80211_AUTHTYPE_SHARED_KEY: | |
5fdb3735 | 5891 | if (fips_enabled) |
9dca9c49 | 5892 | return -EOPNOTSUPP; |
77fdaa12 JB |
5893 | auth_alg = WLAN_AUTH_SHARED_KEY; |
5894 | break; | |
5895 | case NL80211_AUTHTYPE_FT: | |
5896 | auth_alg = WLAN_AUTH_FT; | |
5897 | break; | |
5898 | case NL80211_AUTHTYPE_NETWORK_EAP: | |
5899 | auth_alg = WLAN_AUTH_LEAP; | |
5900 | break; | |
6b8ece3a JM |
5901 | case NL80211_AUTHTYPE_SAE: |
5902 | auth_alg = WLAN_AUTH_SAE; | |
5903 | break; | |
dbc0c2cb JM |
5904 | case NL80211_AUTHTYPE_FILS_SK: |
5905 | auth_alg = WLAN_AUTH_FILS_SK; | |
5906 | break; | |
5907 | case NL80211_AUTHTYPE_FILS_SK_PFS: | |
5908 | auth_alg = WLAN_AUTH_FILS_SK_PFS; | |
5909 | break; | |
5910 | case NL80211_AUTHTYPE_FILS_PK: | |
5911 | auth_alg = WLAN_AUTH_FILS_PK; | |
5912 | break; | |
77fdaa12 JB |
5913 | default: |
5914 | return -EOPNOTSUPP; | |
60f8b39c | 5915 | } |
77fdaa12 | 5916 | |
efb543e6 | 5917 | if (ifmgd->assoc_data) |
8d7432a2 JM |
5918 | return -EBUSY; |
5919 | ||
11b6b5a4 | 5920 | auth_data = kzalloc(sizeof(*auth_data) + req->auth_data_len + |
6b8ece3a | 5921 | req->ie_len, GFP_KERNEL); |
66e67e41 | 5922 | if (!auth_data) |
9c6bd790 | 5923 | return -ENOMEM; |
77fdaa12 | 5924 | |
66e67e41 | 5925 | auth_data->bss = req->bss; |
77fdaa12 | 5926 | |
11b6b5a4 | 5927 | if (req->auth_data_len >= 4) { |
6ec63612 JM |
5928 | if (req->auth_type == NL80211_AUTHTYPE_SAE) { |
5929 | __le16 *pos = (__le16 *) req->auth_data; | |
5930 | ||
5931 | auth_data->sae_trans = le16_to_cpu(pos[0]); | |
5932 | auth_data->sae_status = le16_to_cpu(pos[1]); | |
5933 | } | |
11b6b5a4 JM |
5934 | memcpy(auth_data->data, req->auth_data + 4, |
5935 | req->auth_data_len - 4); | |
5936 | auth_data->data_len += req->auth_data_len - 4; | |
6b8ece3a JM |
5937 | } |
5938 | ||
efb543e6 JM |
5939 | /* Check if continuing authentication or trying to authenticate with the |
5940 | * same BSS that we were in the process of authenticating with and avoid | |
5941 | * removal and re-addition of the STA entry in | |
5942 | * ieee80211_prep_connection(). | |
5943 | */ | |
5944 | cont_auth = ifmgd->auth_data && req->bss == ifmgd->auth_data->bss; | |
5945 | ||
77fdaa12 | 5946 | if (req->ie && req->ie_len) { |
6b8ece3a JM |
5947 | memcpy(&auth_data->data[auth_data->data_len], |
5948 | req->ie, req->ie_len); | |
5949 | auth_data->data_len += req->ie_len; | |
9c6bd790 | 5950 | } |
77fdaa12 | 5951 | |
fffd0934 | 5952 | if (req->key && req->key_len) { |
66e67e41 JB |
5953 | auth_data->key_len = req->key_len; |
5954 | auth_data->key_idx = req->key_idx; | |
5955 | memcpy(auth_data->key, req->key, req->key_len); | |
fffd0934 JB |
5956 | } |
5957 | ||
66e67e41 | 5958 | auth_data->algorithm = auth_alg; |
60f8b39c | 5959 | |
66e67e41 | 5960 | /* try to authenticate/probe */ |
2a33bee2 | 5961 | |
efb543e6 JM |
5962 | if (ifmgd->auth_data) { |
5963 | if (cont_auth && req->auth_type == NL80211_AUTHTYPE_SAE) { | |
5964 | auth_data->peer_confirmed = | |
5965 | ifmgd->auth_data->peer_confirmed; | |
5966 | } | |
5967 | ieee80211_destroy_auth_data(sdata, cont_auth); | |
5968 | } | |
2a33bee2 | 5969 | |
66e67e41 JB |
5970 | /* prep auth_data so we don't go into idle on disassoc */ |
5971 | ifmgd->auth_data = auth_data; | |
af6b6374 | 5972 | |
efb543e6 JM |
5973 | /* If this is continuation of an ongoing SAE authentication exchange |
5974 | * (i.e., request to send SAE Confirm) and the peer has already | |
5975 | * confirmed, mark authentication completed since we are about to send | |
5976 | * out SAE Confirm. | |
5977 | */ | |
5978 | if (cont_auth && req->auth_type == NL80211_AUTHTYPE_SAE && | |
5979 | auth_data->peer_confirmed && auth_data->sae_trans == 2) | |
5980 | ieee80211_mark_sta_auth(sdata, req->bss->bssid); | |
5981 | ||
7b119dc0 JB |
5982 | if (ifmgd->associated) { |
5983 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; | |
5984 | ||
89f774e6 JB |
5985 | sdata_info(sdata, |
5986 | "disconnect from AP %pM for new auth to %pM\n", | |
b65567b0 | 5987 | sdata->vif.cfg.ap_addr, req->bss->bssid); |
7b119dc0 JB |
5988 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
5989 | WLAN_REASON_UNSPECIFIED, | |
5990 | false, frame_buf); | |
5991 | ||
a90faa9d EG |
5992 | ieee80211_report_disconnect(sdata, frame_buf, |
5993 | sizeof(frame_buf), true, | |
3f8a39ff JB |
5994 | WLAN_REASON_UNSPECIFIED, |
5995 | false); | |
7b119dc0 | 5996 | } |
af6b6374 | 5997 | |
bdcbd8e0 | 5998 | sdata_info(sdata, "authenticate with %pM\n", req->bss->bssid); |
e5b900d2 | 5999 | |
efb543e6 | 6000 | err = ieee80211_prep_connection(sdata, req->bss, cont_auth, false); |
a1cf775d | 6001 | if (err) |
66e67e41 | 6002 | goto err_clear; |
af6b6374 | 6003 | |
46cad4b7 | 6004 | err = ieee80211_auth(sdata); |
66e67e41 | 6005 | if (err) { |
66e67e41 JB |
6006 | sta_info_destroy_addr(sdata, req->bss->bssid); |
6007 | goto err_clear; | |
6008 | } | |
6009 | ||
6010 | /* hold our own reference */ | |
5b112d3d | 6011 | cfg80211_ref_bss(local->hw.wiphy, auth_data->bss); |
8d61ffa5 | 6012 | return 0; |
66e67e41 JB |
6013 | |
6014 | err_clear: | |
5bd5666d | 6015 | eth_zero_addr(link->u.mgd.bssid); |
d8675a63 JB |
6016 | ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
6017 | BSS_CHANGED_BSSID); | |
66e67e41 | 6018 | ifmgd->auth_data = NULL; |
d01f858c | 6019 | mutex_lock(&sdata->local->mtx); |
b4f85443 | 6020 | ieee80211_link_release_channel(&sdata->deflink); |
d01f858c | 6021 | mutex_unlock(&sdata->local->mtx); |
66e67e41 | 6022 | kfree(auth_data); |
66e67e41 | 6023 | return err; |
af6b6374 JB |
6024 | } |
6025 | ||
77fdaa12 JB |
6026 | int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, |
6027 | struct cfg80211_assoc_request *req) | |
f0706e82 | 6028 | { |
57fa5e85 | 6029 | bool is_6ghz = req->bss->channel->band == NL80211_BAND_6GHZ; |
c2f46814 | 6030 | bool is_5ghz = req->bss->channel->band == NL80211_BAND_5GHZ; |
66e67e41 | 6031 | struct ieee80211_local *local = sdata->local; |
77fdaa12 | 6032 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
0c1ad2ca | 6033 | struct ieee80211_bss *bss = (void *)req->bss->priv; |
66e67e41 | 6034 | struct ieee80211_mgd_assoc_data *assoc_data; |
c65dd147 | 6035 | const struct cfg80211_bss_ies *beacon_ies; |
4e74bfdb | 6036 | struct ieee80211_supported_band *sband; |
f276e20b | 6037 | struct ieee80211_vif_cfg *vif_cfg = &sdata->vif.cfg; |
f2622138 | 6038 | const struct element *ssid_elem, *ht_elem, *vht_elem; |
5bd5666d | 6039 | struct ieee80211_link_data *link = &sdata->deflink; |
2a33bee2 | 6040 | int i, err; |
c1041f10 | 6041 | bool override = false; |
f0706e82 | 6042 | |
66e67e41 JB |
6043 | assoc_data = kzalloc(sizeof(*assoc_data) + req->ie_len, GFP_KERNEL); |
6044 | if (!assoc_data) | |
6045 | return -ENOMEM; | |
6046 | ||
9caf0364 | 6047 | rcu_read_lock(); |
f2622138 JB |
6048 | ssid_elem = ieee80211_bss_get_elem(req->bss, WLAN_EID_SSID); |
6049 | if (!ssid_elem || ssid_elem->datalen > sizeof(assoc_data->ssid)) { | |
9caf0364 JB |
6050 | rcu_read_unlock(); |
6051 | kfree(assoc_data); | |
6052 | return -EINVAL; | |
6053 | } | |
f2622138 JB |
6054 | memcpy(assoc_data->ssid, ssid_elem->data, ssid_elem->datalen); |
6055 | assoc_data->ssid_len = ssid_elem->datalen; | |
f276e20b JB |
6056 | memcpy(vif_cfg->ssid, assoc_data->ssid, assoc_data->ssid_len); |
6057 | vif_cfg->ssid_len = assoc_data->ssid_len; | |
9caf0364 JB |
6058 | rcu_read_unlock(); |
6059 | ||
7b119dc0 JB |
6060 | if (ifmgd->associated) { |
6061 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; | |
6062 | ||
89f774e6 JB |
6063 | sdata_info(sdata, |
6064 | "disconnect from AP %pM for new assoc to %pM\n", | |
b65567b0 | 6065 | sdata->vif.cfg.ap_addr, req->bss->bssid); |
7b119dc0 JB |
6066 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
6067 | WLAN_REASON_UNSPECIFIED, | |
6068 | false, frame_buf); | |
6069 | ||
a90faa9d EG |
6070 | ieee80211_report_disconnect(sdata, frame_buf, |
6071 | sizeof(frame_buf), true, | |
3f8a39ff JB |
6072 | WLAN_REASON_UNSPECIFIED, |
6073 | false); | |
7b119dc0 | 6074 | } |
66e67e41 JB |
6075 | |
6076 | if (ifmgd->auth_data && !ifmgd->auth_data->done) { | |
6077 | err = -EBUSY; | |
6078 | goto err_free; | |
af6b6374 | 6079 | } |
77fdaa12 | 6080 | |
66e67e41 JB |
6081 | if (ifmgd->assoc_data) { |
6082 | err = -EBUSY; | |
6083 | goto err_free; | |
6084 | } | |
77fdaa12 | 6085 | |
66e67e41 JB |
6086 | if (ifmgd->auth_data) { |
6087 | bool match; | |
6088 | ||
6089 | /* keep sta info, bssid if matching */ | |
bfd8403a JB |
6090 | match = ether_addr_equal(sdata->deflink.u.mgd.bssid, |
6091 | req->bss->bssid); | |
66e67e41 | 6092 | ieee80211_destroy_auth_data(sdata, match); |
2a33bee2 GE |
6093 | } |
6094 | ||
66e67e41 | 6095 | /* prepare assoc data */ |
095d81ce | 6096 | |
5bd5666d | 6097 | link->u.mgd.beacon_crc_valid = false; |
d8ec4433 | 6098 | |
095d81ce JB |
6099 | assoc_data->wmm = bss->wmm_used && |
6100 | (local->hw.queues >= IEEE80211_NUM_ACS); | |
095d81ce | 6101 | |
de5036aa JB |
6102 | /* |
6103 | * IEEE802.11n does not allow TKIP/WEP as pairwise ciphers in HT mode. | |
6104 | * We still associate in non-HT mode (11a/b/g) if any one of these | |
6105 | * ciphers is configured as pairwise. | |
6106 | * We can set this to true for non-11n hardware, that'll be checked | |
6107 | * separately along with the peer capabilities. | |
6108 | */ | |
1c4cb928 | 6109 | for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) { |
77fdaa12 JB |
6110 | if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 || |
6111 | req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP || | |
1c4cb928 | 6112 | req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) { |
5bd5666d JB |
6113 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HT; |
6114 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
6115 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
6116 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
1c4cb928 | 6117 | netdev_info(sdata->dev, |
54626324 | 6118 | "disabling HT/VHT/HE due to WEP/TKIP use\n"); |
1c4cb928 JB |
6119 | } |
6120 | } | |
77fdaa12 | 6121 | |
4e74bfdb | 6122 | sband = local->hw.wiphy->bands[req->bss->channel->band]; |
4e74bfdb | 6123 | |
5dca295d | 6124 | /* also disable HT/VHT/HE/EHT if the AP doesn't use WMM */ |
75e296e9 | 6125 | if (!bss->wmm_used) { |
5bd5666d JB |
6126 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HT; |
6127 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
6128 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
6129 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
75e296e9 JB |
6130 | netdev_info(sdata->dev, |
6131 | "disabling HT/VHT/HE as WMM/QoS is not supported by the AP\n"); | |
d545daba MP |
6132 | } |
6133 | ||
ef96a842 BG |
6134 | memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa)); |
6135 | memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask, | |
6136 | sizeof(ifmgd->ht_capa_mask)); | |
6137 | ||
dd5ecfea JB |
6138 | memcpy(&ifmgd->vht_capa, &req->vht_capa, sizeof(ifmgd->vht_capa)); |
6139 | memcpy(&ifmgd->vht_capa_mask, &req->vht_capa_mask, | |
6140 | sizeof(ifmgd->vht_capa_mask)); | |
6141 | ||
7957c6c8 TP |
6142 | memcpy(&ifmgd->s1g_capa, &req->s1g_capa, sizeof(ifmgd->s1g_capa)); |
6143 | memcpy(&ifmgd->s1g_capa_mask, &req->s1g_capa_mask, | |
6144 | sizeof(ifmgd->s1g_capa_mask)); | |
6145 | ||
77fdaa12 | 6146 | if (req->ie && req->ie_len) { |
66e67e41 JB |
6147 | memcpy(assoc_data->ie, req->ie, req->ie_len); |
6148 | assoc_data->ie_len = req->ie_len; | |
6149 | } | |
f679f65d | 6150 | |
39404fee JM |
6151 | if (req->fils_kek) { |
6152 | /* should already be checked in cfg80211 - so warn */ | |
6153 | if (WARN_ON(req->fils_kek_len > FILS_MAX_KEK_LEN)) { | |
6154 | err = -EINVAL; | |
6155 | goto err_free; | |
6156 | } | |
6157 | memcpy(assoc_data->fils_kek, req->fils_kek, | |
6158 | req->fils_kek_len); | |
6159 | assoc_data->fils_kek_len = req->fils_kek_len; | |
6160 | } | |
6161 | ||
6162 | if (req->fils_nonces) | |
6163 | memcpy(assoc_data->fils_nonces, req->fils_nonces, | |
6164 | 2 * FILS_NONCE_LEN); | |
6165 | ||
66e67e41 | 6166 | assoc_data->bss = req->bss; |
66e67e41 | 6167 | assoc_data->capability = req->bss->capability; |
66e67e41 JB |
6168 | assoc_data->supp_rates = bss->supp_rates; |
6169 | assoc_data->supp_rates_len = bss->supp_rates_len; | |
9dde6423 | 6170 | |
9caf0364 | 6171 | rcu_read_lock(); |
f2622138 JB |
6172 | ht_elem = ieee80211_bss_get_elem(req->bss, WLAN_EID_HT_OPERATION); |
6173 | if (ht_elem && ht_elem->datalen >= sizeof(struct ieee80211_ht_operation)) | |
9dde6423 | 6174 | assoc_data->ap_ht_param = |
f2622138 | 6175 | ((struct ieee80211_ht_operation *)(ht_elem->data))->ht_param; |
57fa5e85 | 6176 | else if (!is_6ghz) |
5bd5666d | 6177 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HT; |
f2622138 | 6178 | vht_elem = ieee80211_bss_get_elem(req->bss, WLAN_EID_VHT_CAPABILITY); |
636ccdae | 6179 | if (vht_elem && vht_elem->datalen >= sizeof(struct ieee80211_vht_cap)) { |
f2622138 | 6180 | memcpy(&assoc_data->ap_vht_cap, vht_elem->data, |
b08fbbd8 | 6181 | sizeof(struct ieee80211_vht_cap)); |
636ccdae | 6182 | } else if (is_5ghz) { |
5dca295d IP |
6183 | sdata_info(sdata, |
6184 | "VHT capa missing/short, disabling VHT/HE/EHT\n"); | |
5bd5666d | 6185 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_VHT | |
ba323e29 JB |
6186 | IEEE80211_CONN_DISABLE_HE | |
6187 | IEEE80211_CONN_DISABLE_EHT; | |
636ccdae | 6188 | } |
9caf0364 | 6189 | rcu_read_unlock(); |
63f170e0 | 6190 | |
848955cc | 6191 | if (WARN((sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_UAPSD) && |
30686bf7 | 6192 | ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK), |
848955cc JB |
6193 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n")) |
6194 | sdata->vif.driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; | |
6195 | ||
ab13315a | 6196 | if (bss->wmm_used && bss->uapsd_supported && |
848955cc | 6197 | (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_UAPSD)) { |
76f0303d | 6198 | assoc_data->uapsd = true; |
ab13315a KV |
6199 | ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED; |
6200 | } else { | |
76f0303d | 6201 | assoc_data->uapsd = false; |
ab13315a KV |
6202 | ifmgd->flags &= ~IEEE80211_STA_UAPSD_ENABLED; |
6203 | } | |
6204 | ||
77fdaa12 | 6205 | if (req->prev_bssid) |
66e67e41 | 6206 | memcpy(assoc_data->prev_bssid, req->prev_bssid, ETH_ALEN); |
77fdaa12 JB |
6207 | |
6208 | if (req->use_mfp) { | |
6209 | ifmgd->mfp = IEEE80211_MFP_REQUIRED; | |
6210 | ifmgd->flags |= IEEE80211_STA_MFP_ENABLED; | |
6211 | } else { | |
6212 | ifmgd->mfp = IEEE80211_MFP_DISABLED; | |
6213 | ifmgd->flags &= ~IEEE80211_STA_MFP_ENABLED; | |
6214 | } | |
6215 | ||
cd2f5dd7 AK |
6216 | if (req->flags & ASSOC_REQ_USE_RRM) |
6217 | ifmgd->flags |= IEEE80211_STA_ENABLE_RRM; | |
6218 | else | |
6219 | ifmgd->flags &= ~IEEE80211_STA_ENABLE_RRM; | |
6220 | ||
77fdaa12 JB |
6221 | if (req->crypto.control_port) |
6222 | ifmgd->flags |= IEEE80211_STA_CONTROL_PORT; | |
6223 | else | |
6224 | ifmgd->flags &= ~IEEE80211_STA_CONTROL_PORT; | |
6225 | ||
a621fa4d JB |
6226 | sdata->control_port_protocol = req->crypto.control_port_ethertype; |
6227 | sdata->control_port_no_encrypt = req->crypto.control_port_no_encrypt; | |
018f6fbf DK |
6228 | sdata->control_port_over_nl80211 = |
6229 | req->crypto.control_port_over_nl80211; | |
7f3f96ce | 6230 | sdata->control_port_no_preauth = req->crypto.control_port_no_preauth; |
a621fa4d | 6231 | |
66e67e41 JB |
6232 | /* kick off associate process */ |
6233 | ||
6234 | ifmgd->assoc_data = assoc_data; | |
5bd5666d JB |
6235 | link->u.mgd.dtim_period = 0; |
6236 | link->u.mgd.have_beacon = false; | |
66e67e41 | 6237 | |
c1041f10 | 6238 | /* override HT/VHT configuration only if the AP and we support it */ |
5bd5666d | 6239 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) { |
c1041f10 CRI |
6240 | struct ieee80211_sta_ht_cap sta_ht_cap; |
6241 | ||
6242 | if (req->flags & ASSOC_REQ_DISABLE_HT) | |
6243 | override = true; | |
6244 | ||
6245 | memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap)); | |
6246 | ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap); | |
6247 | ||
6248 | /* check for 40 MHz disable override */ | |
5bd5666d | 6249 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_40MHZ) && |
c1041f10 CRI |
6250 | sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40 && |
6251 | !(sta_ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)) | |
6252 | override = true; | |
6253 | ||
5bd5666d | 6254 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) && |
c1041f10 CRI |
6255 | req->flags & ASSOC_REQ_DISABLE_VHT) |
6256 | override = true; | |
6257 | } | |
6258 | ||
6259 | if (req->flags & ASSOC_REQ_DISABLE_HT) { | |
636ccdae | 6260 | mlme_dbg(sdata, "HT disabled by flag, disabling HT/VHT/HE\n"); |
5bd5666d JB |
6261 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HT; |
6262 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
6263 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
6264 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
c1041f10 CRI |
6265 | } |
6266 | ||
636ccdae JB |
6267 | if (req->flags & ASSOC_REQ_DISABLE_VHT) { |
6268 | mlme_dbg(sdata, "VHT disabled by flag, disabling VHT\n"); | |
5bd5666d | 6269 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_VHT; |
636ccdae | 6270 | } |
c1041f10 | 6271 | |
636ccdae | 6272 | if (req->flags & ASSOC_REQ_DISABLE_HE) { |
5dca295d | 6273 | mlme_dbg(sdata, "HE disabled by flag, disabling HE/EHT\n"); |
5bd5666d JB |
6274 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_HE; |
6275 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
636ccdae | 6276 | } |
b6db0f89 | 6277 | |
1ca98016 | 6278 | if (req->flags & ASSOC_REQ_DISABLE_EHT) |
5bd5666d | 6279 | link->u.mgd.conn_flags |= IEEE80211_CONN_DISABLE_EHT; |
1ca98016 | 6280 | |
c1041f10 | 6281 | err = ieee80211_prep_connection(sdata, req->bss, true, override); |
a1cf775d JB |
6282 | if (err) |
6283 | goto err_clear; | |
66e67e41 | 6284 | |
5bd5666d | 6285 | if (link->u.mgd.req_smps == IEEE80211_SMPS_AUTOMATIC) { |
79ea0a5f | 6286 | if (ifmgd->powersave) |
5bd5666d | 6287 | link->smps_mode = IEEE80211_SMPS_DYNAMIC; |
79ea0a5f | 6288 | else |
5bd5666d | 6289 | link->smps_mode = IEEE80211_SMPS_OFF; |
79ea0a5f | 6290 | } else { |
5bd5666d | 6291 | link->smps_mode = link->u.mgd.req_smps; |
79ea0a5f ST |
6292 | } |
6293 | ||
c65dd147 EG |
6294 | rcu_read_lock(); |
6295 | beacon_ies = rcu_dereference(req->bss->beacon_ies); | |
826262c3 | 6296 | |
30686bf7 | 6297 | if (ieee80211_hw_check(&sdata->local->hw, NEED_DTIM_BEFORE_ASSOC) && |
c65dd147 EG |
6298 | !beacon_ies) { |
6299 | /* | |
6300 | * Wait up to one beacon interval ... | |
6301 | * should this be more if we miss one? | |
6302 | */ | |
6303 | sdata_info(sdata, "waiting for beacon from %pM\n", | |
5bd5666d | 6304 | link->u.mgd.bssid); |
c65dd147 | 6305 | assoc_data->timeout = TU_TO_EXP_TIME(req->bss->beacon_interval); |
89afe614 | 6306 | assoc_data->timeout_started = true; |
c65dd147 EG |
6307 | assoc_data->need_beacon = true; |
6308 | } else if (beacon_ies) { | |
3b3ec3d5 | 6309 | const struct element *elem; |
ef429dad JB |
6310 | u8 dtim_count = 0; |
6311 | ||
78ac51f8 | 6312 | ieee80211_get_dtim(beacon_ies, &dtim_count, |
5bd5666d | 6313 | &link->u.mgd.dtim_period); |
78ac51f8 | 6314 | |
5bd5666d | 6315 | link->u.mgd.have_beacon = true; |
66e67e41 | 6316 | assoc_data->timeout = jiffies; |
89afe614 | 6317 | assoc_data->timeout_started = true; |
ef429dad | 6318 | |
30686bf7 | 6319 | if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY)) { |
5bd5666d JB |
6320 | link->conf->sync_tsf = beacon_ies->tsf; |
6321 | link->conf->sync_device_ts = | |
ef429dad | 6322 | bss->device_ts_beacon; |
5bd5666d | 6323 | link->conf->sync_dtim_count = dtim_count; |
ef429dad | 6324 | } |
78ac51f8 | 6325 | |
3b3ec3d5 ST |
6326 | elem = cfg80211_find_ext_elem(WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION, |
6327 | beacon_ies->data, beacon_ies->len); | |
6328 | if (elem && elem->datalen >= 3) | |
5bd5666d | 6329 | link->conf->profile_periodicity = elem->data[2]; |
bbc6f03f | 6330 | else |
5bd5666d | 6331 | link->conf->profile_periodicity = 0; |
78ac51f8 | 6332 | |
3b3ec3d5 ST |
6333 | elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, |
6334 | beacon_ies->data, beacon_ies->len); | |
6335 | if (elem && elem->datalen >= 11 && | |
6336 | (elem->data[10] & WLAN_EXT_CAPA11_EMA_SUPPORT)) | |
5bd5666d | 6337 | link->conf->ema_ap = true; |
bbc6f03f | 6338 | else |
5bd5666d | 6339 | link->conf->ema_ap = false; |
c65dd147 EG |
6340 | } else { |
6341 | assoc_data->timeout = jiffies; | |
89afe614 | 6342 | assoc_data->timeout_started = true; |
66e67e41 | 6343 | } |
c65dd147 EG |
6344 | rcu_read_unlock(); |
6345 | ||
8d61ffa5 | 6346 | run_again(sdata, assoc_data->timeout); |
66e67e41 | 6347 | |
fcff4f10 PS |
6348 | if (bss->corrupt_data) { |
6349 | char *corrupt_type = "data"; | |
6350 | if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_BEACON) { | |
6351 | if (bss->corrupt_data & | |
6352 | IEEE80211_BSS_CORRUPT_PROBE_RESP) | |
6353 | corrupt_type = "beacon and probe response"; | |
6354 | else | |
6355 | corrupt_type = "beacon"; | |
6356 | } else if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_PROBE_RESP) | |
6357 | corrupt_type = "probe response"; | |
bdcbd8e0 JB |
6358 | sdata_info(sdata, "associating with AP with corrupt %s\n", |
6359 | corrupt_type); | |
fcff4f10 PS |
6360 | } |
6361 | ||
8d61ffa5 | 6362 | return 0; |
66e67e41 | 6363 | err_clear: |
5bd5666d | 6364 | eth_zero_addr(link->u.mgd.bssid); |
d8675a63 JB |
6365 | ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
6366 | BSS_CHANGED_BSSID); | |
66e67e41 JB |
6367 | ifmgd->assoc_data = NULL; |
6368 | err_free: | |
6369 | kfree(assoc_data); | |
66e67e41 | 6370 | return err; |
f0706e82 JB |
6371 | } |
6372 | ||
77fdaa12 | 6373 | int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, |
63c9c5e7 | 6374 | struct cfg80211_deauth_request *req) |
f0706e82 | 6375 | { |
46900298 | 6376 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
6ae16775 | 6377 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
6863255b | 6378 | bool tx = !req->local_state_change; |
15fae341 JB |
6379 | struct ieee80211_prep_tx_info info = { |
6380 | .subtype = IEEE80211_STYPE_DEAUTH, | |
6381 | }; | |
f0706e82 | 6382 | |
c9c3a060 JB |
6383 | if (ifmgd->auth_data && |
6384 | ether_addr_equal(ifmgd->auth_data->bss->bssid, req->bssid)) { | |
6385 | sdata_info(sdata, | |
6386 | "aborting authentication with %pM by local choice (Reason: %u=%s)\n", | |
6387 | req->bssid, req->reason_code, | |
6388 | ieee80211_get_reason_code_string(req->reason_code)); | |
0ff71613 | 6389 | |
15fae341 | 6390 | drv_mgd_prepare_tx(sdata->local, sdata, &info); |
4b08d1b6 | 6391 | ieee80211_send_deauth_disassoc(sdata, req->bssid, req->bssid, |
37ad3888 | 6392 | IEEE80211_STYPE_DEAUTH, |
6863255b | 6393 | req->reason_code, tx, |
37ad3888 | 6394 | frame_buf); |
86552017 | 6395 | ieee80211_destroy_auth_data(sdata, false); |
a90faa9d EG |
6396 | ieee80211_report_disconnect(sdata, frame_buf, |
6397 | sizeof(frame_buf), true, | |
3f8a39ff | 6398 | req->reason_code, false); |
15fae341 | 6399 | drv_mgd_complete_tx(sdata->local, sdata, &info); |
c9c3a060 | 6400 | return 0; |
8c7d857c EG |
6401 | } |
6402 | ||
a64cba3c AO |
6403 | if (ifmgd->assoc_data && |
6404 | ether_addr_equal(ifmgd->assoc_data->bss->bssid, req->bssid)) { | |
6405 | sdata_info(sdata, | |
6406 | "aborting association with %pM by local choice (Reason: %u=%s)\n", | |
6407 | req->bssid, req->reason_code, | |
6408 | ieee80211_get_reason_code_string(req->reason_code)); | |
6409 | ||
15fae341 | 6410 | drv_mgd_prepare_tx(sdata->local, sdata, &info); |
4b08d1b6 | 6411 | ieee80211_send_deauth_disassoc(sdata, req->bssid, req->bssid, |
a64cba3c AO |
6412 | IEEE80211_STYPE_DEAUTH, |
6413 | req->reason_code, tx, | |
6414 | frame_buf); | |
afa2d659 | 6415 | ieee80211_destroy_assoc_data(sdata, ASSOC_ABANDON); |
a64cba3c AO |
6416 | ieee80211_report_disconnect(sdata, frame_buf, |
6417 | sizeof(frame_buf), true, | |
3f8a39ff | 6418 | req->reason_code, false); |
a64cba3c AO |
6419 | return 0; |
6420 | } | |
6421 | ||
86552017 | 6422 | if (ifmgd->associated && |
b65567b0 | 6423 | ether_addr_equal(sdata->vif.cfg.ap_addr, req->bssid)) { |
c9c3a060 JB |
6424 | sdata_info(sdata, |
6425 | "deauthenticating from %pM by local choice (Reason: %u=%s)\n", | |
6426 | req->bssid, req->reason_code, | |
6427 | ieee80211_get_reason_code_string(req->reason_code)); | |
6428 | ||
86552017 JB |
6429 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
6430 | req->reason_code, tx, frame_buf); | |
a90faa9d EG |
6431 | ieee80211_report_disconnect(sdata, frame_buf, |
6432 | sizeof(frame_buf), true, | |
3f8a39ff | 6433 | req->reason_code, false); |
15fae341 | 6434 | drv_mgd_complete_tx(sdata->local, sdata, &info); |
c9c3a060 JB |
6435 | return 0; |
6436 | } | |
86552017 | 6437 | |
c9c3a060 | 6438 | return -ENOTCONN; |
f0706e82 | 6439 | } |
84363e6e | 6440 | |
77fdaa12 | 6441 | int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, |
63c9c5e7 | 6442 | struct cfg80211_disassoc_request *req) |
9c6bd790 | 6443 | { |
6ae16775 | 6444 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
9c6bd790 | 6445 | |
8f6e0dfc JB |
6446 | if (!sdata->u.mgd.associated || |
6447 | memcmp(sdata->vif.cfg.ap_addr, req->ap_addr, ETH_ALEN)) | |
6448 | return -ENOTCONN; | |
77fdaa12 | 6449 | |
bdcbd8e0 | 6450 | sdata_info(sdata, |
dfa1ad29 | 6451 | "disassociating from %pM by local choice (Reason: %u=%s)\n", |
8f6e0dfc JB |
6452 | req->ap_addr, req->reason_code, |
6453 | ieee80211_get_reason_code_string(req->reason_code)); | |
0ff71613 | 6454 | |
37ad3888 JB |
6455 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DISASSOC, |
6456 | req->reason_code, !req->local_state_change, | |
6457 | frame_buf); | |
10f644a4 | 6458 | |
a90faa9d | 6459 | ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, |
3f8a39ff | 6460 | req->reason_code, false); |
bc83b681 | 6461 | |
10f644a4 JB |
6462 | return 0; |
6463 | } | |
026331c4 | 6464 | |
b2e8434f JB |
6465 | void ieee80211_mgd_stop_link(struct ieee80211_link_data *link) |
6466 | { | |
6467 | cancel_work_sync(&link->u.mgd.request_smps_work); | |
5bd5666d | 6468 | cancel_work_sync(&link->u.mgd.chswitch_work); |
b2e8434f JB |
6469 | } |
6470 | ||
afa762f6 | 6471 | void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata) |
54e4ffb2 JB |
6472 | { |
6473 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
6474 | ||
49921859 BG |
6475 | /* |
6476 | * Make sure some work items will not run after this, | |
6477 | * they will not do anything but might not have been | |
6478 | * cancelled when disconnecting. | |
6479 | */ | |
6480 | cancel_work_sync(&ifmgd->monitor_work); | |
6481 | cancel_work_sync(&ifmgd->beacon_connection_loss_work); | |
49921859 | 6482 | cancel_work_sync(&ifmgd->csa_connection_drop_work); |
81dd2b88 | 6483 | cancel_delayed_work_sync(&ifmgd->tdls_peer_del_work); |
49921859 | 6484 | |
8d61ffa5 | 6485 | sdata_lock(sdata); |
afa2d659 JB |
6486 | if (ifmgd->assoc_data) |
6487 | ieee80211_destroy_assoc_data(sdata, ASSOC_TIMEOUT); | |
54e4ffb2 JB |
6488 | if (ifmgd->auth_data) |
6489 | ieee80211_destroy_auth_data(sdata, false); | |
1277b4a9 LK |
6490 | spin_lock_bh(&ifmgd->teardown_lock); |
6491 | if (ifmgd->teardown_skb) { | |
6492 | kfree_skb(ifmgd->teardown_skb); | |
6493 | ifmgd->teardown_skb = NULL; | |
6494 | ifmgd->orig_teardown_skb = NULL; | |
6495 | } | |
4d9ec73d JM |
6496 | kfree(ifmgd->assoc_req_ies); |
6497 | ifmgd->assoc_req_ies = NULL; | |
6498 | ifmgd->assoc_req_ies_len = 0; | |
1277b4a9 | 6499 | spin_unlock_bh(&ifmgd->teardown_lock); |
54e4ffb2 | 6500 | del_timer_sync(&ifmgd->timer); |
8d61ffa5 | 6501 | sdata_unlock(sdata); |
54e4ffb2 JB |
6502 | } |
6503 | ||
a97c13c3 JO |
6504 | void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif, |
6505 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
769f07d8 | 6506 | s32 rssi_level, |
a97c13c3 JO |
6507 | gfp_t gfp) |
6508 | { | |
6509 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
6510 | ||
769f07d8 | 6511 | trace_api_cqm_rssi_notify(sdata, rssi_event, rssi_level); |
b5878a2d | 6512 | |
bee427b8 | 6513 | cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, rssi_level, gfp); |
a97c13c3 JO |
6514 | } |
6515 | EXPORT_SYMBOL(ieee80211_cqm_rssi_notify); | |
98f03342 JB |
6516 | |
6517 | void ieee80211_cqm_beacon_loss_notify(struct ieee80211_vif *vif, gfp_t gfp) | |
6518 | { | |
6519 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
6520 | ||
6521 | trace_api_cqm_beacon_loss_notify(sdata->local, sdata); | |
6522 | ||
6523 | cfg80211_cqm_beacon_loss_notify(sdata->dev, gfp); | |
6524 | } | |
6525 | EXPORT_SYMBOL(ieee80211_cqm_beacon_loss_notify); | |
f344c58c JB |
6526 | |
6527 | static void _ieee80211_enable_rssi_reports(struct ieee80211_sub_if_data *sdata, | |
6528 | int rssi_min_thold, | |
6529 | int rssi_max_thold) | |
6530 | { | |
6531 | trace_api_enable_rssi_reports(sdata, rssi_min_thold, rssi_max_thold); | |
6532 | ||
6533 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
6534 | return; | |
6535 | ||
6536 | /* | |
6537 | * Scale up threshold values before storing it, as the RSSI averaging | |
6538 | * algorithm uses a scaled up value as well. Change this scaling | |
6539 | * factor if the RSSI averaging algorithm changes. | |
6540 | */ | |
6541 | sdata->u.mgd.rssi_min_thold = rssi_min_thold*16; | |
6542 | sdata->u.mgd.rssi_max_thold = rssi_max_thold*16; | |
6543 | } | |
6544 | ||
6545 | void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, | |
6546 | int rssi_min_thold, | |
6547 | int rssi_max_thold) | |
6548 | { | |
6549 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
6550 | ||
6551 | WARN_ON(rssi_min_thold == rssi_max_thold || | |
6552 | rssi_min_thold > rssi_max_thold); | |
6553 | ||
6554 | _ieee80211_enable_rssi_reports(sdata, rssi_min_thold, | |
6555 | rssi_max_thold); | |
6556 | } | |
6557 | EXPORT_SYMBOL(ieee80211_enable_rssi_reports); | |
6558 | ||
6559 | void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) | |
6560 | { | |
6561 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
6562 | ||
6563 | _ieee80211_enable_rssi_reports(sdata, 0, 0); | |
6564 | } | |
6565 | EXPORT_SYMBOL(ieee80211_disable_rssi_reports); |