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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
f0706e82 JB |
2 | /* |
3 | * BSS client mode implementation | |
5394af4d | 4 | * Copyright 2003-2008, Jouni Malinen <j@w1.fi> |
f0706e82 JB |
5 | * Copyright 2004, Instant802 Networks, Inc. |
6 | * Copyright 2005, Devicescape Software, Inc. | |
7 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> | |
8 | * Copyright 2007, Michael Wu <flamingice@sourmilk.net> | |
d98ad83e | 9 | * Copyright 2013-2014 Intel Mobile Communications GmbH |
e38a017b | 10 | * Copyright (C) 2015 - 2017 Intel Deutschland GmbH |
aa87cd8b | 11 | * Copyright (C) 2018 - 2023 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 | ||
aa87cd8b JB |
91 | /* |
92 | * Extract from the given disabled subchannel bitmap (raw format | |
93 | * from the EHT Operation Element) the bits for the subchannel | |
94 | * we're using right now. | |
95 | */ | |
96 | static u16 | |
97 | ieee80211_extract_dis_subch_bmap(const struct ieee80211_eht_operation *eht_oper, | |
98 | struct cfg80211_chan_def *chandef, u16 bitmap) | |
99 | { | |
100 | struct ieee80211_eht_operation_info *info = (void *)eht_oper->optional; | |
101 | struct cfg80211_chan_def ap_chandef = *chandef; | |
102 | u32 ap_center_freq, local_center_freq; | |
103 | u32 ap_bw, local_bw; | |
104 | int ap_start_freq, local_start_freq; | |
105 | u16 shift, mask; | |
106 | ||
107 | if (!(eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT) || | |
108 | !(eht_oper->params & | |
109 | IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)) | |
110 | return 0; | |
111 | ||
112 | /* set 160/320 supported to get the full AP definition */ | |
113 | ieee80211_chandef_eht_oper(eht_oper, true, true, &ap_chandef); | |
114 | ap_center_freq = ap_chandef.center_freq1; | |
115 | ap_bw = 20 * BIT(u8_get_bits(info->control, | |
116 | IEEE80211_EHT_OPER_CHAN_WIDTH)); | |
117 | ap_start_freq = ap_center_freq - ap_bw / 2; | |
118 | local_center_freq = chandef->center_freq1; | |
119 | local_bw = 20 * BIT(ieee80211_chan_width_to_rx_bw(chandef->width)); | |
120 | local_start_freq = local_center_freq - local_bw / 2; | |
121 | shift = (local_start_freq - ap_start_freq) / 20; | |
122 | mask = BIT(local_bw / 20) - 1; | |
123 | ||
124 | return (bitmap >> shift) & mask; | |
125 | } | |
126 | ||
127 | /* | |
128 | * Handle the puncturing bitmap, possibly downgrading bandwidth to get a | |
129 | * valid bitmap. | |
130 | */ | |
131 | static void | |
132 | ieee80211_handle_puncturing_bitmap(struct ieee80211_link_data *link, | |
133 | const struct ieee80211_eht_operation *eht_oper, | |
134 | u16 bitmap, u64 *changed) | |
135 | { | |
136 | struct cfg80211_chan_def *chandef = &link->conf->chandef; | |
137 | u16 extracted; | |
138 | u64 _changed = 0; | |
139 | ||
140 | if (!changed) | |
141 | changed = &_changed; | |
142 | ||
143 | while (chandef->width > NL80211_CHAN_WIDTH_40) { | |
144 | extracted = | |
145 | ieee80211_extract_dis_subch_bmap(eht_oper, chandef, | |
146 | bitmap); | |
147 | ||
b25413fe AD |
148 | if (cfg80211_valid_disable_subchannel_bitmap(&bitmap, |
149 | chandef)) | |
aa87cd8b JB |
150 | break; |
151 | link->u.mgd.conn_flags |= | |
152 | ieee80211_chandef_downgrade(chandef); | |
153 | *changed |= BSS_CHANGED_BANDWIDTH; | |
154 | } | |
155 | ||
156 | if (chandef->width <= NL80211_CHAN_WIDTH_40) | |
157 | extracted = 0; | |
158 | ||
159 | if (link->conf->eht_puncturing != extracted) { | |
160 | link->conf->eht_puncturing = extracted; | |
161 | *changed |= BSS_CHANGED_EHT_PUNCTURING; | |
162 | } | |
163 | } | |
164 | ||
ca386f31 JB |
165 | /* |
166 | * We can have multiple work items (and connection probing) | |
167 | * scheduling this timer, but we need to take care to only | |
168 | * reschedule it when it should fire _earlier_ than it was | |
169 | * asked for before, or if it's not pending right now. This | |
170 | * function ensures that. Note that it then is required to | |
171 | * run this function for all timeouts after the first one | |
172 | * has happened -- the work that runs from this timer will | |
173 | * do that. | |
174 | */ | |
8d61ffa5 JB |
175 | static void run_again(struct ieee80211_sub_if_data *sdata, |
176 | unsigned long timeout) | |
ca386f31 | 177 | { |
8d61ffa5 | 178 | sdata_assert_lock(sdata); |
ca386f31 | 179 | |
8d61ffa5 JB |
180 | if (!timer_pending(&sdata->u.mgd.timer) || |
181 | time_before(timeout, sdata->u.mgd.timer.expires)) | |
182 | mod_timer(&sdata->u.mgd.timer, timeout); | |
ca386f31 JB |
183 | } |
184 | ||
d3a910a8 | 185 | void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata) |
b291ba11 | 186 | { |
c1288b12 | 187 | if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) |
b291ba11 JB |
188 | return; |
189 | ||
30686bf7 | 190 | if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) |
7eeff74c JB |
191 | return; |
192 | ||
b291ba11 | 193 | mod_timer(&sdata->u.mgd.bcn_mon_timer, |
7ccc8bd7 | 194 | round_jiffies_up(jiffies + sdata->u.mgd.beacon_timeout)); |
b291ba11 JB |
195 | } |
196 | ||
be099e82 LR |
197 | void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata) |
198 | { | |
0c699c3a LR |
199 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
200 | ||
b100e5d6 | 201 | if (unlikely(!ifmgd->associated)) |
8628172f SG |
202 | return; |
203 | ||
b100e5d6 JB |
204 | if (ifmgd->probe_send_count) |
205 | ifmgd->probe_send_count = 0; | |
448cd2e2 | 206 | |
30686bf7 | 207 | if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) |
be099e82 LR |
208 | return; |
209 | ||
b100e5d6 | 210 | mod_timer(&ifmgd->conn_mon_timer, |
be099e82 LR |
211 | round_jiffies_up(jiffies + IEEE80211_CONNECTION_IDLE_TIME)); |
212 | } | |
213 | ||
5484e237 | 214 | static int ecw2cw(int ecw) |
60f8b39c | 215 | { |
5484e237 | 216 | return (1 << ecw) - 1; |
60f8b39c JB |
217 | } |
218 | ||
ba323e29 | 219 | static ieee80211_conn_flags_t |
4a21a8ae JB |
220 | ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata, |
221 | struct ieee80211_link_data *link, | |
222 | ieee80211_conn_flags_t conn_flags, | |
6565ec9b JB |
223 | struct ieee80211_supported_band *sband, |
224 | struct ieee80211_channel *channel, | |
2a333a0d | 225 | u32 vht_cap_info, |
6565ec9b JB |
226 | const struct ieee80211_ht_operation *ht_oper, |
227 | const struct ieee80211_vht_operation *vht_oper, | |
41cbb0f5 | 228 | const struct ieee80211_he_operation *he_oper, |
5dca295d | 229 | const struct ieee80211_eht_operation *eht_oper, |
1d00ce80 | 230 | const struct ieee80211_s1g_oper_ie *s1g_oper, |
5cdaed1e | 231 | struct cfg80211_chan_def *chandef, bool tracking) |
6565ec9b JB |
232 | { |
233 | struct cfg80211_chan_def vht_chandef; | |
179b8fc7 | 234 | struct ieee80211_sta_ht_cap sta_ht_cap; |
ba323e29 JB |
235 | ieee80211_conn_flags_t ret; |
236 | u32 ht_cfreq; | |
6565ec9b | 237 | |
2a38075c | 238 | memset(chandef, 0, sizeof(struct cfg80211_chan_def)); |
6565ec9b JB |
239 | chandef->chan = channel; |
240 | chandef->width = NL80211_CHAN_WIDTH_20_NOHT; | |
241 | chandef->center_freq1 = channel->center_freq; | |
b6011960 | 242 | chandef->freq1_offset = channel->freq_offset; |
6565ec9b | 243 | |
57fa5e85 | 244 | if (channel->band == NL80211_BAND_6GHZ) { |
5dca295d IP |
245 | if (!ieee80211_chandef_he_6ghz_oper(sdata, he_oper, eht_oper, |
246 | chandef)) { | |
636ccdae | 247 | mlme_dbg(sdata, |
5dca295d | 248 | "bad 6 GHz operation, disabling HT/VHT/HE/EHT\n"); |
ba323e29 JB |
249 | ret = IEEE80211_CONN_DISABLE_HT | |
250 | IEEE80211_CONN_DISABLE_VHT | | |
251 | IEEE80211_CONN_DISABLE_HE | | |
252 | IEEE80211_CONN_DISABLE_EHT; | |
636ccdae | 253 | } else { |
523f3ec0 | 254 | ret = 0; |
636ccdae | 255 | } |
57fa5e85 JB |
256 | vht_chandef = *chandef; |
257 | goto out; | |
75f87eae TP |
258 | } else if (sband->band == NL80211_BAND_S1GHZ) { |
259 | if (!ieee80211_chandef_s1g_oper(s1g_oper, chandef)) { | |
260 | sdata_info(sdata, | |
261 | "Missing S1G Operation Element? Trying operating == primary\n"); | |
262 | chandef->width = ieee80211_s1g_channel_width(channel); | |
263 | } | |
57fa5e85 | 264 | |
ba323e29 JB |
265 | ret = IEEE80211_CONN_DISABLE_HT | IEEE80211_CONN_DISABLE_40MHZ | |
266 | IEEE80211_CONN_DISABLE_VHT | | |
267 | IEEE80211_CONN_DISABLE_80P80MHZ | | |
268 | IEEE80211_CONN_DISABLE_160MHZ; | |
1d00ce80 TP |
269 | goto out; |
270 | } | |
271 | ||
75f87eae TP |
272 | memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap)); |
273 | ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap); | |
274 | ||
b1b1ae2c | 275 | if (!ht_oper || !sta_ht_cap.ht_supported) { |
636ccdae | 276 | mlme_dbg(sdata, "HT operation missing / HT not supported\n"); |
ba323e29 JB |
277 | ret = IEEE80211_CONN_DISABLE_HT | |
278 | IEEE80211_CONN_DISABLE_VHT | | |
279 | IEEE80211_CONN_DISABLE_HE | | |
280 | IEEE80211_CONN_DISABLE_EHT; | |
6565ec9b JB |
281 | goto out; |
282 | } | |
283 | ||
284 | chandef->width = NL80211_CHAN_WIDTH_20; | |
285 | ||
286 | ht_cfreq = ieee80211_channel_to_frequency(ht_oper->primary_chan, | |
287 | channel->band); | |
288 | /* check that channel matches the right operating channel */ | |
5cdaed1e | 289 | if (!tracking && channel->center_freq != ht_cfreq) { |
6565ec9b JB |
290 | /* |
291 | * It's possible that some APs are confused here; | |
292 | * Netgear WNDR3700 sometimes reports 4 higher than | |
293 | * the actual channel in association responses, but | |
294 | * since we look at probe response/beacon data here | |
295 | * it should be OK. | |
296 | */ | |
5cdaed1e JB |
297 | sdata_info(sdata, |
298 | "Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n", | |
299 | channel->center_freq, ht_cfreq, | |
300 | ht_oper->primary_chan, channel->band); | |
ba323e29 JB |
301 | ret = IEEE80211_CONN_DISABLE_HT | |
302 | IEEE80211_CONN_DISABLE_VHT | | |
303 | IEEE80211_CONN_DISABLE_HE | | |
304 | IEEE80211_CONN_DISABLE_EHT; | |
6565ec9b JB |
305 | goto out; |
306 | } | |
307 | ||
308 | /* check 40 MHz support, if we have it */ | |
179b8fc7 | 309 | if (sta_ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) { |
8ac3c704 | 310 | ieee80211_chandef_ht_oper(ht_oper, chandef); |
6565ec9b | 311 | } else { |
636ccdae | 312 | mlme_dbg(sdata, "40 MHz not supported\n"); |
6565ec9b | 313 | /* 40 MHz (and 80 MHz) must be supported for VHT */ |
ba323e29 | 314 | ret = IEEE80211_CONN_DISABLE_VHT; |
85220d71 | 315 | /* also mark 40 MHz disabled */ |
ba323e29 | 316 | ret |= IEEE80211_CONN_DISABLE_40MHZ; |
6565ec9b JB |
317 | goto out; |
318 | } | |
319 | ||
320 | if (!vht_oper || !sband->vht_cap.vht_supported) { | |
636ccdae | 321 | mlme_dbg(sdata, "VHT operation missing / VHT not supported\n"); |
ba323e29 | 322 | ret = IEEE80211_CONN_DISABLE_VHT; |
6565ec9b JB |
323 | goto out; |
324 | } | |
325 | ||
8ac3c704 | 326 | vht_chandef = *chandef; |
4a21a8ae | 327 | if (!(conn_flags & IEEE80211_CONN_DISABLE_HE) && |
ba323e29 | 328 | he_oper && |
41cbb0f5 LC |
329 | (le32_to_cpu(he_oper->he_oper_params) & |
330 | IEEE80211_HE_OPERATION_VHT_OPER_INFO)) { | |
331 | struct ieee80211_vht_operation he_oper_vht_cap; | |
332 | ||
333 | /* | |
334 | * Set only first 3 bytes (other 2 aren't used in | |
335 | * ieee80211_chandef_vht_oper() anyway) | |
336 | */ | |
337 | memcpy(&he_oper_vht_cap, he_oper->optional, 3); | |
338 | he_oper_vht_cap.basic_mcs_set = cpu_to_le16(0); | |
339 | ||
2a333a0d | 340 | if (!ieee80211_chandef_vht_oper(&sdata->local->hw, vht_cap_info, |
7eb26df2 | 341 | &he_oper_vht_cap, ht_oper, |
41cbb0f5 | 342 | &vht_chandef)) { |
4a21a8ae | 343 | if (!(conn_flags & IEEE80211_CONN_DISABLE_HE)) |
41cbb0f5 | 344 | sdata_info(sdata, |
636ccdae | 345 | "HE AP VHT information is invalid, disabling HE\n"); |
ba323e29 | 346 | ret = IEEE80211_CONN_DISABLE_HE | IEEE80211_CONN_DISABLE_EHT; |
41cbb0f5 LC |
347 | goto out; |
348 | } | |
2a333a0d JB |
349 | } else if (!ieee80211_chandef_vht_oper(&sdata->local->hw, |
350 | vht_cap_info, | |
351 | vht_oper, ht_oper, | |
352 | &vht_chandef)) { | |
4a21a8ae | 353 | if (!(conn_flags & IEEE80211_CONN_DISABLE_VHT)) |
30eb1dc2 | 354 | sdata_info(sdata, |
636ccdae | 355 | "AP VHT information is invalid, disabling VHT\n"); |
ba323e29 | 356 | ret = IEEE80211_CONN_DISABLE_VHT; |
6565ec9b JB |
357 | goto out; |
358 | } | |
359 | ||
360 | if (!cfg80211_chandef_valid(&vht_chandef)) { | |
4a21a8ae | 361 | if (!(conn_flags & IEEE80211_CONN_DISABLE_VHT)) |
30eb1dc2 | 362 | sdata_info(sdata, |
636ccdae | 363 | "AP VHT information is invalid, disabling VHT\n"); |
ba323e29 | 364 | ret = IEEE80211_CONN_DISABLE_VHT; |
6565ec9b JB |
365 | goto out; |
366 | } | |
367 | ||
368 | if (cfg80211_chandef_identical(chandef, &vht_chandef)) { | |
369 | ret = 0; | |
370 | goto out; | |
371 | } | |
372 | ||
373 | if (!cfg80211_chandef_compatible(chandef, &vht_chandef)) { | |
4a21a8ae | 374 | if (!(conn_flags & IEEE80211_CONN_DISABLE_VHT)) |
30eb1dc2 | 375 | sdata_info(sdata, |
636ccdae | 376 | "AP VHT information doesn't match HT, disabling VHT\n"); |
ba323e29 | 377 | ret = IEEE80211_CONN_DISABLE_VHT; |
6565ec9b JB |
378 | goto out; |
379 | } | |
380 | ||
381 | *chandef = vht_chandef; | |
382 | ||
1e0b3b0b IP |
383 | /* |
384 | * handle the case that the EHT operation indicates that it holds EHT | |
385 | * operation information (in case that the channel width differs from | |
386 | * the channel width reported in HT/VHT/HE). | |
387 | */ | |
388 | if (eht_oper && (eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT)) { | |
389 | struct cfg80211_chan_def eht_chandef = *chandef; | |
390 | ||
774e00c2 | 391 | ieee80211_chandef_eht_oper(eht_oper, |
1e0b3b0b IP |
392 | eht_chandef.width == |
393 | NL80211_CHAN_WIDTH_160, | |
394 | false, &eht_chandef); | |
395 | ||
396 | if (!cfg80211_chandef_valid(&eht_chandef)) { | |
4a21a8ae | 397 | if (!(conn_flags & IEEE80211_CONN_DISABLE_EHT)) |
1e0b3b0b IP |
398 | sdata_info(sdata, |
399 | "AP EHT information is invalid, disabling EHT\n"); | |
ba323e29 | 400 | ret = IEEE80211_CONN_DISABLE_EHT; |
1e0b3b0b IP |
401 | goto out; |
402 | } | |
403 | ||
404 | if (!cfg80211_chandef_compatible(chandef, &eht_chandef)) { | |
4a21a8ae | 405 | if (!(conn_flags & IEEE80211_CONN_DISABLE_EHT)) |
1e0b3b0b IP |
406 | sdata_info(sdata, |
407 | "AP EHT information is incompatible, disabling EHT\n"); | |
ba323e29 | 408 | ret = IEEE80211_CONN_DISABLE_EHT; |
1e0b3b0b IP |
409 | goto out; |
410 | } | |
411 | ||
412 | *chandef = eht_chandef; | |
413 | } | |
414 | ||
6565ec9b JB |
415 | ret = 0; |
416 | ||
417 | out: | |
963a1852 JB |
418 | /* |
419 | * When tracking the current AP, don't do any further checks if the | |
420 | * new chandef is identical to the one we're currently using for the | |
421 | * connection. This keeps us from playing ping-pong with regulatory, | |
422 | * without it the following can happen (for example): | |
423 | * - connect to an AP with 80 MHz, world regdom allows 80 MHz | |
424 | * - AP advertises regdom US | |
425 | * - CRDA loads regdom US with 80 MHz prohibited (old database) | |
426 | * - the code below detects an unsupported channel, downgrades, and | |
427 | * we disconnect from the AP in the caller | |
428 | * - disconnect causes CRDA to reload world regdomain and the game | |
429 | * starts anew. | |
430 | * (see https://bugzilla.kernel.org/show_bug.cgi?id=70881) | |
431 | * | |
432 | * It seems possible that there are still scenarios with CSA or real | |
433 | * bandwidth changes where a this could happen, but those cases are | |
434 | * less common and wouldn't completely prevent using the AP. | |
435 | */ | |
436 | if (tracking && | |
5bd5666d | 437 | cfg80211_chandef_identical(chandef, &link->conf->chandef)) |
963a1852 JB |
438 | return ret; |
439 | ||
586e01ed | 440 | /* don't print the message below for VHT mismatch if VHT is disabled */ |
ba323e29 | 441 | if (ret & IEEE80211_CONN_DISABLE_VHT) |
586e01ed JB |
442 | vht_chandef = *chandef; |
443 | ||
ddfe49b4 JB |
444 | /* |
445 | * Ignore the DISABLED flag when we're already connected and only | |
446 | * tracking the APs beacon for bandwidth changes - otherwise we | |
447 | * might get disconnected here if we connect to an AP, update our | |
448 | * regulatory information based on the AP's country IE and the | |
449 | * information we have is wrong/outdated and disables the channel | |
450 | * that we're actually using for the connection to the AP. | |
451 | */ | |
6565ec9b | 452 | while (!cfg80211_chandef_usable(sdata->local->hw.wiphy, chandef, |
ddfe49b4 JB |
453 | tracking ? 0 : |
454 | IEEE80211_CHAN_DISABLED)) { | |
6565ec9b | 455 | if (WARN_ON(chandef->width == NL80211_CHAN_WIDTH_20_NOHT)) { |
ba323e29 JB |
456 | ret = IEEE80211_CONN_DISABLE_HT | |
457 | IEEE80211_CONN_DISABLE_VHT | | |
458 | IEEE80211_CONN_DISABLE_HE | | |
459 | IEEE80211_CONN_DISABLE_EHT; | |
b56e4b85 | 460 | break; |
6565ec9b JB |
461 | } |
462 | ||
e6b7cde4 | 463 | ret |= ieee80211_chandef_downgrade(chandef); |
6565ec9b JB |
464 | } |
465 | ||
8cadb207 DG |
466 | if (!he_oper || !cfg80211_chandef_usable(sdata->wdev.wiphy, chandef, |
467 | IEEE80211_CHAN_NO_HE)) | |
ba323e29 | 468 | ret |= IEEE80211_CONN_DISABLE_HE | IEEE80211_CONN_DISABLE_EHT; |
5dca295d IP |
469 | |
470 | if (!eht_oper || !cfg80211_chandef_usable(sdata->wdev.wiphy, chandef, | |
471 | IEEE80211_CHAN_NO_EHT)) | |
ba323e29 | 472 | ret |= IEEE80211_CONN_DISABLE_EHT; |
b5db1aca | 473 | |
5cdaed1e | 474 | if (chandef->width != vht_chandef.width && !tracking) |
6565ec9b JB |
475 | sdata_info(sdata, |
476 | "capabilities/regulatory prevented using AP HT/VHT configuration, downgraded\n"); | |
477 | ||
478 | WARN_ON_ONCE(!cfg80211_chandef_valid(chandef)); | |
479 | return ret; | |
480 | } | |
481 | ||
5bd5666d | 482 | static int ieee80211_config_bw(struct ieee80211_link_data *link, |
53b954ee | 483 | const struct ieee80211_ht_cap *ht_cap, |
2a333a0d | 484 | const struct ieee80211_vht_cap *vht_cap, |
30eb1dc2 JB |
485 | const struct ieee80211_ht_operation *ht_oper, |
486 | const struct ieee80211_vht_operation *vht_oper, | |
41cbb0f5 | 487 | const struct ieee80211_he_operation *he_oper, |
5dca295d | 488 | const struct ieee80211_eht_operation *eht_oper, |
1d00ce80 | 489 | const struct ieee80211_s1g_oper_ie *s1g_oper, |
aa87cd8b | 490 | const u8 *bssid, u64 *changed) |
d5522e03 | 491 | { |
5bd5666d | 492 | struct ieee80211_sub_if_data *sdata = link->sdata; |
d5522e03 | 493 | struct ieee80211_local *local = sdata->local; |
30eb1dc2 | 494 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
5bd5666d | 495 | struct ieee80211_channel *chan = link->conf->chandef.chan; |
41cbb0f5 LC |
496 | struct ieee80211_supported_band *sband = |
497 | local->hw.wiphy->bands[chan->band]; | |
30eb1dc2 | 498 | struct cfg80211_chan_def chandef; |
9ed6bcce | 499 | u16 ht_opmode; |
ba323e29 | 500 | ieee80211_conn_flags_t flags; |
2a333a0d | 501 | u32 vht_cap_info = 0; |
30eb1dc2 | 502 | int ret; |
d5522e03 | 503 | |
30eb1dc2 | 504 | /* if HT was/is disabled, don't track any bandwidth changes */ |
5bd5666d | 505 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT || !ht_oper) |
1128958d JB |
506 | return 0; |
507 | ||
30eb1dc2 | 508 | /* don't check VHT if we associated as non-VHT station */ |
5bd5666d | 509 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) |
30eb1dc2 JB |
510 | vht_oper = NULL; |
511 | ||
41cbb0f5 | 512 | /* don't check HE if we associated as non-HE station */ |
5bd5666d | 513 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE || |
1ec7291e | 514 | !ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif)) { |
41cbb0f5 | 515 | he_oper = NULL; |
5dca295d IP |
516 | eht_oper = NULL; |
517 | } | |
518 | ||
519 | /* don't check EHT if we associated as non-EHT station */ | |
5bd5666d | 520 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT || |
1ec7291e | 521 | !ieee80211_get_eht_iftype_cap_vif(sband, &sdata->vif)) |
5dca295d | 522 | eht_oper = NULL; |
41cbb0f5 | 523 | |
017b45bb AA |
524 | /* |
525 | * if bss configuration changed store the new one - | |
526 | * this may be applicable even if channel is identical | |
527 | */ | |
528 | ht_opmode = le16_to_cpu(ht_oper->operation_mode); | |
5bd5666d | 529 | if (link->conf->ht_operation_mode != ht_opmode) { |
017b45bb | 530 | *changed |= BSS_CHANGED_HT; |
5bd5666d | 531 | link->conf->ht_operation_mode = ht_opmode; |
017b45bb AA |
532 | } |
533 | ||
2a333a0d JB |
534 | if (vht_cap) |
535 | vht_cap_info = le32_to_cpu(vht_cap->vht_cap_info); | |
536 | ||
41cbb0f5 | 537 | /* calculate new channel (type) based on HT/VHT/HE operation IEs */ |
4a21a8ae JB |
538 | flags = ieee80211_determine_chantype(sdata, link, |
539 | link->u.mgd.conn_flags, | |
540 | sband, chan, vht_cap_info, | |
5dca295d IP |
541 | ht_oper, vht_oper, |
542 | he_oper, eht_oper, | |
1d00ce80 | 543 | s1g_oper, &chandef, true); |
30eb1dc2 JB |
544 | |
545 | /* | |
546 | * Downgrade the new channel if we associated with restricted | |
547 | * capabilities. For example, if we associated as a 20 MHz STA | |
548 | * to a 40 MHz AP (due to regulatory, capabilities or config | |
549 | * reasons) then switching to a 40 MHz channel now won't do us | |
550 | * any good -- we couldn't use it with the AP. | |
551 | */ | |
5bd5666d | 552 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_80P80MHZ && |
30eb1dc2 | 553 | chandef.width == NL80211_CHAN_WIDTH_80P80) |
e6b7cde4 | 554 | flags |= ieee80211_chandef_downgrade(&chandef); |
5bd5666d | 555 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_160MHZ && |
30eb1dc2 | 556 | chandef.width == NL80211_CHAN_WIDTH_160) |
e6b7cde4 | 557 | flags |= ieee80211_chandef_downgrade(&chandef); |
5bd5666d | 558 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_40MHZ && |
30eb1dc2 | 559 | chandef.width > NL80211_CHAN_WIDTH_20) |
e6b7cde4 | 560 | flags |= ieee80211_chandef_downgrade(&chandef); |
30eb1dc2 | 561 | |
5bd5666d | 562 | if (cfg80211_chandef_identical(&chandef, &link->conf->chandef)) |
30eb1dc2 JB |
563 | return 0; |
564 | ||
5bd5666d JB |
565 | link_info(link, |
566 | "AP %pM changed bandwidth, new config is %d.%03d MHz, width %d (%d.%03d/%d MHz)\n", | |
567 | link->u.mgd.bssid, chandef.chan->center_freq, | |
568 | chandef.chan->freq_offset, chandef.width, | |
569 | chandef.center_freq1, chandef.freq1_offset, | |
570 | chandef.center_freq2); | |
571 | ||
572 | if (flags != (link->u.mgd.conn_flags & | |
ba323e29 JB |
573 | (IEEE80211_CONN_DISABLE_HT | |
574 | IEEE80211_CONN_DISABLE_VHT | | |
575 | IEEE80211_CONN_DISABLE_HE | | |
576 | IEEE80211_CONN_DISABLE_EHT | | |
577 | IEEE80211_CONN_DISABLE_40MHZ | | |
578 | IEEE80211_CONN_DISABLE_80P80MHZ | | |
579 | IEEE80211_CONN_DISABLE_160MHZ | | |
580 | IEEE80211_CONN_DISABLE_320MHZ)) || | |
30eb1dc2 JB |
581 | !cfg80211_chandef_valid(&chandef)) { |
582 | sdata_info(sdata, | |
6516ee22 | 583 | "AP %pM changed caps/bw in a way we can't support (0x%x/0x%x) - disconnect\n", |
5bd5666d | 584 | link->u.mgd.bssid, flags, ifmgd->flags); |
30eb1dc2 JB |
585 | return -EINVAL; |
586 | } | |
587 | ||
5bd5666d | 588 | ret = ieee80211_link_change_bandwidth(link, &chandef, changed); |
d6c37509 | 589 | |
30eb1dc2 JB |
590 | if (ret) { |
591 | sdata_info(sdata, | |
592 | "AP %pM changed bandwidth to incompatible one - disconnect\n", | |
5bd5666d | 593 | link->u.mgd.bssid); |
30eb1dc2 JB |
594 | return ret; |
595 | } | |
7cc44ed4 | 596 | |
30eb1dc2 | 597 | return 0; |
d5522e03 JB |
598 | } |
599 | ||
9c6bd790 JB |
600 | /* frame sending functions */ |
601 | ||
df9a9c44 | 602 | static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, |
9dde6423 | 603 | struct sk_buff *skb, u8 ap_ht_param, |
66e67e41 JB |
604 | struct ieee80211_supported_band *sband, |
605 | struct ieee80211_channel *channel, | |
df9a9c44 JB |
606 | enum ieee80211_smps_mode smps, |
607 | ieee80211_conn_flags_t conn_flags) | |
66e67e41 | 608 | { |
66e67e41 JB |
609 | u8 *pos; |
610 | u32 flags = channel->flags; | |
611 | u16 cap; | |
612 | struct ieee80211_sta_ht_cap ht_cap; | |
613 | ||
614 | BUILD_BUG_ON(sizeof(ht_cap) != sizeof(sband->ht_cap)); | |
615 | ||
66e67e41 JB |
616 | memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap)); |
617 | ieee80211_apply_htcap_overrides(sdata, &ht_cap); | |
618 | ||
66e67e41 JB |
619 | /* determine capability flags */ |
620 | cap = ht_cap.cap; | |
621 | ||
9dde6423 | 622 | switch (ap_ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { |
66e67e41 JB |
623 | case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: |
624 | if (flags & IEEE80211_CHAN_NO_HT40PLUS) { | |
625 | cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; | |
626 | cap &= ~IEEE80211_HT_CAP_SGI_40; | |
627 | } | |
628 | break; | |
629 | case IEEE80211_HT_PARAM_CHA_SEC_BELOW: | |
630 | if (flags & IEEE80211_CHAN_NO_HT40MINUS) { | |
631 | cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; | |
632 | cap &= ~IEEE80211_HT_CAP_SGI_40; | |
633 | } | |
634 | break; | |
635 | } | |
636 | ||
24398e39 JB |
637 | /* |
638 | * If 40 MHz was disabled associate as though we weren't | |
639 | * capable of 40 MHz -- some broken APs will never fall | |
640 | * back to trying to transmit in 20 MHz. | |
641 | */ | |
df9a9c44 | 642 | if (conn_flags & IEEE80211_CONN_DISABLE_40MHZ) { |
24398e39 JB |
643 | cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
644 | cap &= ~IEEE80211_HT_CAP_SGI_40; | |
645 | } | |
646 | ||
66e67e41 JB |
647 | /* set SM PS mode properly */ |
648 | cap &= ~IEEE80211_HT_CAP_SM_PS; | |
649 | switch (smps) { | |
650 | case IEEE80211_SMPS_AUTOMATIC: | |
651 | case IEEE80211_SMPS_NUM_MODES: | |
652 | WARN_ON(1); | |
fc0561dc | 653 | fallthrough; |
66e67e41 JB |
654 | case IEEE80211_SMPS_OFF: |
655 | cap |= WLAN_HT_CAP_SM_PS_DISABLED << | |
656 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
657 | break; | |
658 | case IEEE80211_SMPS_STATIC: | |
659 | cap |= WLAN_HT_CAP_SM_PS_STATIC << | |
660 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
661 | break; | |
662 | case IEEE80211_SMPS_DYNAMIC: | |
663 | cap |= WLAN_HT_CAP_SM_PS_DYNAMIC << | |
664 | IEEE80211_HT_CAP_SM_PS_SHIFT; | |
665 | break; | |
666 | } | |
667 | ||
668 | /* reserve and fill IE */ | |
669 | pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2); | |
670 | ieee80211_ie_build_ht_cap(pos, &ht_cap, cap); | |
671 | } | |
672 | ||
322cd406 SS |
673 | /* This function determines vht capability flags for the association |
674 | * and builds the IE. | |
df9a9c44 | 675 | * Note - the function returns true to own the MU-MIMO capability |
322cd406 | 676 | */ |
df9a9c44 | 677 | static bool ieee80211_add_vht_ie(struct ieee80211_sub_if_data *sdata, |
d545daba | 678 | struct sk_buff *skb, |
b08fbbd8 | 679 | struct ieee80211_supported_band *sband, |
df9a9c44 JB |
680 | struct ieee80211_vht_cap *ap_vht_cap, |
681 | ieee80211_conn_flags_t conn_flags) | |
d545daba | 682 | { |
322cd406 | 683 | struct ieee80211_local *local = sdata->local; |
d545daba MP |
684 | u8 *pos; |
685 | u32 cap; | |
686 | struct ieee80211_sta_vht_cap vht_cap; | |
c1cf6d4e | 687 | u32 mask, ap_bf_sts, our_bf_sts; |
df9a9c44 | 688 | bool mu_mimo_owner = false; |
d545daba MP |
689 | |
690 | BUILD_BUG_ON(sizeof(vht_cap) != sizeof(sband->vht_cap)); | |
691 | ||
692 | memcpy(&vht_cap, &sband->vht_cap, sizeof(vht_cap)); | |
dd5ecfea | 693 | ieee80211_apply_vhtcap_overrides(sdata, &vht_cap); |
d545daba MP |
694 | |
695 | /* determine capability flags */ | |
696 | cap = vht_cap.cap; | |
697 | ||
df9a9c44 | 698 | if (conn_flags & IEEE80211_CONN_DISABLE_80P80MHZ) { |
575f0530 JB |
699 | u32 bw = cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; |
700 | ||
701 | cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; | |
702 | if (bw == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ || | |
703 | bw == IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) | |
704 | cap |= IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; | |
f2d9d270 JB |
705 | } |
706 | ||
df9a9c44 | 707 | if (conn_flags & IEEE80211_CONN_DISABLE_160MHZ) { |
f2d9d270 | 708 | cap &= ~IEEE80211_VHT_CAP_SHORT_GI_160; |
575f0530 | 709 | cap &= ~IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; |
f2d9d270 JB |
710 | } |
711 | ||
b08fbbd8 JB |
712 | /* |
713 | * Some APs apparently get confused if our capabilities are better | |
714 | * than theirs, so restrict what we advertise in the assoc request. | |
715 | */ | |
716 | if (!(ap_vht_cap->vht_cap_info & | |
717 | cpu_to_le32(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE))) | |
322cd406 SS |
718 | cap &= ~(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | |
719 | IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE); | |
720 | else if (!(ap_vht_cap->vht_cap_info & | |
721 | cpu_to_le32(IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))) | |
722 | cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; | |
723 | ||
724 | /* | |
ab4040df | 725 | * If some other vif is using the MU-MIMO capability we cannot associate |
322cd406 SS |
726 | * using MU-MIMO - this will lead to contradictions in the group-id |
727 | * mechanism. | |
728 | * Ownership is defined since association request, in order to avoid | |
729 | * simultaneous associations with MU-MIMO. | |
730 | */ | |
731 | if (cap & IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE) { | |
732 | bool disable_mu_mimo = false; | |
733 | struct ieee80211_sub_if_data *other; | |
734 | ||
735 | list_for_each_entry_rcu(other, &local->interfaces, list) { | |
d0a9123e | 736 | if (other->vif.bss_conf.mu_mimo_owner) { |
322cd406 SS |
737 | disable_mu_mimo = true; |
738 | break; | |
739 | } | |
740 | } | |
741 | if (disable_mu_mimo) | |
742 | cap &= ~IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; | |
743 | else | |
df9a9c44 | 744 | mu_mimo_owner = true; |
322cd406 | 745 | } |
b08fbbd8 | 746 | |
c1cf6d4e ES |
747 | mask = IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK; |
748 | ||
749 | ap_bf_sts = le32_to_cpu(ap_vht_cap->vht_cap_info) & mask; | |
750 | our_bf_sts = cap & mask; | |
751 | ||
752 | if (ap_bf_sts < our_bf_sts) { | |
753 | cap &= ~mask; | |
754 | cap |= ap_bf_sts; | |
755 | } | |
756 | ||
d545daba | 757 | /* reserve and fill IE */ |
d4950281 | 758 | pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2); |
d545daba | 759 | ieee80211_ie_build_vht_cap(pos, &vht_cap, cap); |
df9a9c44 JB |
760 | |
761 | return mu_mimo_owner; | |
d545daba MP |
762 | } |
763 | ||
41cbb0f5 LC |
764 | /* This function determines HE capability flags for the association |
765 | * and builds the IE. | |
766 | */ | |
df9a9c44 | 767 | static void ieee80211_add_he_ie(struct ieee80211_sub_if_data *sdata, |
41cbb0f5 | 768 | struct sk_buff *skb, |
df9a9c44 | 769 | struct ieee80211_supported_band *sband, |
abd27d06 | 770 | enum ieee80211_smps_mode smps_mode, |
df9a9c44 | 771 | ieee80211_conn_flags_t conn_flags) |
41cbb0f5 | 772 | { |
1f2c1044 | 773 | u8 *pos, *pre_he_pos; |
df9a9c44 | 774 | const struct ieee80211_sta_he_cap *he_cap; |
41cbb0f5 LC |
775 | u8 he_cap_size; |
776 | ||
1ec7291e | 777 | he_cap = ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif); |
df9a9c44 | 778 | if (WARN_ON(!he_cap)) |
41cbb0f5 LC |
779 | return; |
780 | ||
1f2c1044 | 781 | /* get a max size estimate */ |
41cbb0f5 LC |
782 | he_cap_size = |
783 | 2 + 1 + sizeof(he_cap->he_cap_elem) + | |
784 | ieee80211_he_mcs_nss_size(&he_cap->he_cap_elem) + | |
785 | ieee80211_he_ppe_size(he_cap->ppe_thres[0], | |
786 | he_cap->he_cap_elem.phy_cap_info); | |
787 | pos = skb_put(skb, he_cap_size); | |
1f2c1044 | 788 | pre_he_pos = pos; |
df9a9c44 | 789 | pos = ieee80211_ie_build_he_cap(conn_flags, |
1f2c1044 JB |
790 | pos, he_cap, pos + he_cap_size); |
791 | /* trim excess if any */ | |
792 | skb_trim(skb, skb->len - (pre_he_pos + he_cap_size - pos)); | |
24a2042c | 793 | |
abd27d06 | 794 | ieee80211_ie_build_he_6ghz_cap(sdata, smps_mode, skb); |
41cbb0f5 LC |
795 | } |
796 | ||
df9a9c44 | 797 | static void ieee80211_add_eht_ie(struct ieee80211_sub_if_data *sdata, |
820acc81 IP |
798 | struct sk_buff *skb, |
799 | struct ieee80211_supported_band *sband) | |
800 | { | |
801 | u8 *pos; | |
802 | const struct ieee80211_sta_he_cap *he_cap; | |
803 | const struct ieee80211_sta_eht_cap *eht_cap; | |
820acc81 | 804 | u8 eht_cap_size; |
820acc81 | 805 | |
1ec7291e JB |
806 | he_cap = ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif); |
807 | eht_cap = ieee80211_get_eht_iftype_cap_vif(sband, &sdata->vif); | |
820acc81 IP |
808 | |
809 | /* | |
810 | * EHT capabilities element is only added if the HE capabilities element | |
811 | * was added so assume that 'he_cap' is valid and don't check it. | |
812 | */ | |
df9a9c44 | 813 | if (WARN_ON(!he_cap || !eht_cap)) |
820acc81 IP |
814 | return; |
815 | ||
816 | eht_cap_size = | |
817 | 2 + 1 + sizeof(eht_cap->eht_cap_elem) + | |
818 | ieee80211_eht_mcs_nss_size(&he_cap->he_cap_elem, | |
ea5cba26 JB |
819 | &eht_cap->eht_cap_elem, |
820 | false) + | |
820acc81 IP |
821 | ieee80211_eht_ppe_size(eht_cap->eht_ppe_thres[0], |
822 | eht_cap->eht_cap_elem.phy_cap_info); | |
823 | pos = skb_put(skb, eht_cap_size); | |
ea5cba26 JB |
824 | ieee80211_ie_build_eht_cap(pos, he_cap, eht_cap, pos + eht_cap_size, |
825 | false); | |
820acc81 IP |
826 | } |
827 | ||
c1690b66 JB |
828 | static void ieee80211_assoc_add_rates(struct sk_buff *skb, |
829 | enum nl80211_chan_width width, | |
830 | struct ieee80211_supported_band *sband, | |
831 | struct ieee80211_mgd_assoc_data *assoc_data) | |
832 | { | |
833 | unsigned int shift = ieee80211_chanwidth_get_shift(width); | |
834 | unsigned int rates_len, supp_rates_len; | |
835 | u32 rates = 0; | |
836 | int i, count; | |
837 | u8 *pos; | |
838 | ||
839 | if (assoc_data->supp_rates_len) { | |
840 | /* | |
841 | * Get all rates supported by the device and the AP as | |
842 | * some APs don't like getting a superset of their rates | |
843 | * in the association request (e.g. D-Link DAP 1353 in | |
844 | * b-only mode)... | |
845 | */ | |
846 | rates_len = ieee80211_parse_bitrates(width, sband, | |
847 | assoc_data->supp_rates, | |
848 | assoc_data->supp_rates_len, | |
849 | &rates); | |
850 | } else { | |
851 | /* | |
852 | * In case AP not provide any supported rates information | |
853 | * before association, we send information element(s) with | |
854 | * all rates that we support. | |
855 | */ | |
856 | rates_len = sband->n_bitrates; | |
857 | for (i = 0; i < sband->n_bitrates; i++) | |
858 | rates |= BIT(i); | |
859 | } | |
860 | ||
861 | supp_rates_len = rates_len; | |
862 | if (supp_rates_len > 8) | |
863 | supp_rates_len = 8; | |
864 | ||
865 | pos = skb_put(skb, supp_rates_len + 2); | |
866 | *pos++ = WLAN_EID_SUPP_RATES; | |
867 | *pos++ = supp_rates_len; | |
868 | ||
869 | count = 0; | |
870 | for (i = 0; i < sband->n_bitrates; i++) { | |
871 | if (BIT(i) & rates) { | |
872 | int rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, | |
873 | 5 * (1 << shift)); | |
874 | *pos++ = (u8)rate; | |
875 | if (++count == 8) | |
876 | break; | |
877 | } | |
878 | } | |
879 | ||
880 | if (rates_len > count) { | |
881 | pos = skb_put(skb, rates_len - count + 2); | |
882 | *pos++ = WLAN_EID_EXT_SUPP_RATES; | |
883 | *pos++ = rates_len - count; | |
884 | ||
885 | for (i++; i < sband->n_bitrates; i++) { | |
886 | if (BIT(i) & rates) { | |
887 | int rate; | |
888 | ||
889 | rate = DIV_ROUND_UP(sband->bitrates[i].bitrate, | |
890 | 5 * (1 << shift)); | |
891 | *pos++ = (u8)rate; | |
892 | } | |
893 | } | |
894 | } | |
895 | } | |
896 | ||
3c68cb81 JB |
897 | static size_t ieee80211_add_before_ht_elems(struct sk_buff *skb, |
898 | const u8 *elems, | |
899 | size_t elems_len, | |
900 | size_t offset) | |
901 | { | |
902 | size_t noffset; | |
903 | ||
904 | static const u8 before_ht[] = { | |
905 | WLAN_EID_SSID, | |
906 | WLAN_EID_SUPP_RATES, | |
907 | WLAN_EID_EXT_SUPP_RATES, | |
908 | WLAN_EID_PWR_CAPABILITY, | |
909 | WLAN_EID_SUPPORTED_CHANNELS, | |
910 | WLAN_EID_RSN, | |
911 | WLAN_EID_QOS_CAPA, | |
912 | WLAN_EID_RRM_ENABLED_CAPABILITIES, | |
913 | WLAN_EID_MOBILITY_DOMAIN, | |
914 | WLAN_EID_FAST_BSS_TRANSITION, /* reassoc only */ | |
915 | WLAN_EID_RIC_DATA, /* reassoc only */ | |
916 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, | |
917 | }; | |
918 | static const u8 after_ric[] = { | |
919 | WLAN_EID_SUPPORTED_REGULATORY_CLASSES, | |
920 | WLAN_EID_HT_CAPABILITY, | |
921 | WLAN_EID_BSS_COEX_2040, | |
922 | /* luckily this is almost always there */ | |
923 | WLAN_EID_EXT_CAPABILITY, | |
924 | WLAN_EID_QOS_TRAFFIC_CAPA, | |
925 | WLAN_EID_TIM_BCAST_REQ, | |
926 | WLAN_EID_INTERWORKING, | |
927 | /* 60 GHz (Multi-band, DMG, MMS) can't happen */ | |
928 | WLAN_EID_VHT_CAPABILITY, | |
929 | WLAN_EID_OPMODE_NOTIF, | |
930 | }; | |
931 | ||
932 | if (!elems_len) | |
933 | return offset; | |
934 | ||
935 | noffset = ieee80211_ie_split_ric(elems, elems_len, | |
936 | before_ht, | |
937 | ARRAY_SIZE(before_ht), | |
938 | after_ric, | |
939 | ARRAY_SIZE(after_ric), | |
940 | offset); | |
941 | skb_put_data(skb, elems + offset, noffset - offset); | |
942 | ||
943 | return noffset; | |
944 | } | |
945 | ||
946 | static size_t ieee80211_add_before_vht_elems(struct sk_buff *skb, | |
947 | const u8 *elems, | |
948 | size_t elems_len, | |
949 | size_t offset) | |
950 | { | |
951 | static const u8 before_vht[] = { | |
952 | /* | |
953 | * no need to list the ones split off before HT | |
954 | * or generated here | |
955 | */ | |
956 | WLAN_EID_BSS_COEX_2040, | |
957 | WLAN_EID_EXT_CAPABILITY, | |
958 | WLAN_EID_QOS_TRAFFIC_CAPA, | |
959 | WLAN_EID_TIM_BCAST_REQ, | |
960 | WLAN_EID_INTERWORKING, | |
961 | /* 60 GHz (Multi-band, DMG, MMS) can't happen */ | |
962 | }; | |
963 | size_t noffset; | |
964 | ||
965 | if (!elems_len) | |
966 | return offset; | |
967 | ||
968 | /* RIC already taken care of in ieee80211_add_before_ht_elems() */ | |
969 | noffset = ieee80211_ie_split(elems, elems_len, | |
970 | before_vht, ARRAY_SIZE(before_vht), | |
971 | offset); | |
972 | skb_put_data(skb, elems + offset, noffset - offset); | |
973 | ||
974 | return noffset; | |
975 | } | |
976 | ||
977 | static size_t ieee80211_add_before_he_elems(struct sk_buff *skb, | |
978 | const u8 *elems, | |
979 | size_t elems_len, | |
980 | size_t offset) | |
981 | { | |
982 | static const u8 before_he[] = { | |
983 | /* | |
984 | * no need to list the ones split off before VHT | |
985 | * or generated here | |
986 | */ | |
987 | WLAN_EID_OPMODE_NOTIF, | |
988 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FUTURE_CHAN_GUIDANCE, | |
989 | /* 11ai elements */ | |
990 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_SESSION, | |
991 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_PUBLIC_KEY, | |
992 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_KEY_CONFIRM, | |
993 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_HLP_CONTAINER, | |
994 | WLAN_EID_EXTENSION, WLAN_EID_EXT_FILS_IP_ADDR_ASSIGN, | |
995 | /* TODO: add 11ah/11aj/11ak elements */ | |
996 | }; | |
997 | size_t noffset; | |
998 | ||
999 | if (!elems_len) | |
1000 | return offset; | |
1001 | ||
1002 | /* RIC already taken care of in ieee80211_add_before_ht_elems() */ | |
1003 | noffset = ieee80211_ie_split(elems, elems_len, | |
1004 | before_he, ARRAY_SIZE(before_he), | |
1005 | offset); | |
1006 | skb_put_data(skb, elems + offset, noffset - offset); | |
1007 | ||
1008 | return noffset; | |
1009 | } | |
1010 | ||
81151ce4 JB |
1011 | #define PRESENT_ELEMS_MAX 8 |
1012 | #define PRESENT_ELEM_EXT_OFFS 0x100 | |
1013 | ||
1014 | static void ieee80211_assoc_add_ml_elem(struct ieee80211_sub_if_data *sdata, | |
1015 | struct sk_buff *skb, u16 capab, | |
1016 | const struct element *ext_capa, | |
1017 | const u16 *present_elems); | |
1018 | ||
978420c2 JB |
1019 | static size_t ieee80211_assoc_link_elems(struct ieee80211_sub_if_data *sdata, |
1020 | struct sk_buff *skb, u16 *capab, | |
1021 | const struct element *ext_capa, | |
1022 | const u8 *extra_elems, | |
1023 | size_t extra_elems_len, | |
81151ce4 JB |
1024 | unsigned int link_id, |
1025 | struct ieee80211_link_data *link, | |
1026 | u16 *present_elems) | |
978420c2 JB |
1027 | { |
1028 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); | |
1029 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
1030 | struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; | |
81151ce4 | 1031 | struct cfg80211_bss *cbss = assoc_data->link[link_id].bss; |
978420c2 JB |
1032 | struct ieee80211_channel *chan = cbss->channel; |
1033 | const struct ieee80211_sband_iftype_data *iftd; | |
1034 | struct ieee80211_local *local = sdata->local; | |
1035 | struct ieee80211_supported_band *sband; | |
1036 | enum nl80211_chan_width width = NL80211_CHAN_WIDTH_20; | |
1037 | struct ieee80211_chanctx_conf *chanctx_conf; | |
81151ce4 JB |
1038 | enum ieee80211_smps_mode smps_mode; |
1039 | u16 orig_capab = *capab; | |
978420c2 | 1040 | size_t offset = 0; |
81151ce4 | 1041 | int present_elems_len = 0; |
978420c2 JB |
1042 | u8 *pos; |
1043 | int i; | |
1044 | ||
81151ce4 JB |
1045 | #define ADD_PRESENT_ELEM(id) do { \ |
1046 | /* need a last for termination - we use 0 == SSID */ \ | |
1047 | if (!WARN_ON(present_elems_len >= PRESENT_ELEMS_MAX - 1)) \ | |
1048 | present_elems[present_elems_len++] = (id); \ | |
1049 | } while (0) | |
1050 | #define ADD_PRESENT_EXT_ELEM(id) ADD_PRESENT_ELEM(PRESENT_ELEM_EXT_OFFS | (id)) | |
1051 | ||
1052 | if (link) | |
1053 | smps_mode = link->smps_mode; | |
1054 | else if (sdata->u.mgd.powersave) | |
1055 | smps_mode = IEEE80211_SMPS_DYNAMIC; | |
1056 | else | |
1057 | smps_mode = IEEE80211_SMPS_OFF; | |
1058 | ||
1059 | if (link) { | |
1060 | /* | |
1061 | * 5/10 MHz scenarios are only viable without MLO, in which | |
1062 | * case this pointer should be used ... All of this is a bit | |
1063 | * unclear though, not sure this even works at all. | |
1064 | */ | |
1065 | rcu_read_lock(); | |
1066 | chanctx_conf = rcu_dereference(link->conf->chanctx_conf); | |
1067 | if (chanctx_conf) | |
1068 | width = chanctx_conf->def.width; | |
1069 | rcu_read_unlock(); | |
1070 | } | |
978420c2 JB |
1071 | |
1072 | sband = local->hw.wiphy->bands[chan->band]; | |
1073 | iftd = ieee80211_get_sband_iftype_data(sband, iftype); | |
1074 | ||
1075 | if (sband->band == NL80211_BAND_2GHZ) { | |
1076 | *capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; | |
1077 | *capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; | |
1078 | } | |
1079 | ||
1080 | if ((cbss->capability & WLAN_CAPABILITY_SPECTRUM_MGMT) && | |
1081 | ieee80211_hw_check(&local->hw, SPECTRUM_MGMT)) | |
1082 | *capab |= WLAN_CAPABILITY_SPECTRUM_MGMT; | |
1083 | ||
1084 | if (sband->band != NL80211_BAND_S1GHZ) | |
1085 | ieee80211_assoc_add_rates(skb, width, sband, assoc_data); | |
1086 | ||
1087 | if (*capab & WLAN_CAPABILITY_SPECTRUM_MGMT || | |
1088 | *capab & WLAN_CAPABILITY_RADIO_MEASURE) { | |
1089 | struct cfg80211_chan_def chandef = { | |
1090 | .width = width, | |
1091 | .chan = chan, | |
1092 | }; | |
1093 | ||
1094 | pos = skb_put(skb, 4); | |
1095 | *pos++ = WLAN_EID_PWR_CAPABILITY; | |
1096 | *pos++ = 2; | |
1097 | *pos++ = 0; /* min tx power */ | |
1098 | /* max tx power */ | |
1099 | *pos++ = ieee80211_chandef_max_power(&chandef); | |
81151ce4 | 1100 | ADD_PRESENT_ELEM(WLAN_EID_PWR_CAPABILITY); |
978420c2 JB |
1101 | } |
1102 | ||
1103 | /* | |
1104 | * Per spec, we shouldn't include the list of channels if we advertise | |
1105 | * support for extended channel switching, but we've always done that; | |
1106 | * (for now?) apply this restriction only on the (new) 6 GHz band. | |
1107 | */ | |
1108 | if (*capab & WLAN_CAPABILITY_SPECTRUM_MGMT && | |
1109 | (sband->band != NL80211_BAND_6GHZ || | |
1110 | !ext_capa || ext_capa->datalen < 1 || | |
1111 | !(ext_capa->data[0] & WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING))) { | |
1112 | /* TODO: get this in reg domain format */ | |
1113 | pos = skb_put(skb, 2 * sband->n_channels + 2); | |
1114 | *pos++ = WLAN_EID_SUPPORTED_CHANNELS; | |
1115 | *pos++ = 2 * sband->n_channels; | |
1116 | for (i = 0; i < sband->n_channels; i++) { | |
1117 | int cf = sband->channels[i].center_freq; | |
1118 | ||
1119 | *pos++ = ieee80211_frequency_to_channel(cf); | |
1120 | *pos++ = 1; /* one channel in the subband*/ | |
1121 | } | |
81151ce4 | 1122 | ADD_PRESENT_ELEM(WLAN_EID_SUPPORTED_CHANNELS); |
978420c2 JB |
1123 | } |
1124 | ||
1125 | /* if present, add any custom IEs that go before HT */ | |
1126 | offset = ieee80211_add_before_ht_elems(skb, extra_elems, | |
1127 | extra_elems_len, | |
1128 | offset); | |
1129 | ||
1130 | if (sband->band != NL80211_BAND_6GHZ && | |
81151ce4 | 1131 | !(assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_HT)) { |
978420c2 | 1132 | ieee80211_add_ht_ie(sdata, skb, |
81151ce4 JB |
1133 | assoc_data->link[link_id].ap_ht_param, |
1134 | sband, chan, smps_mode, | |
1135 | assoc_data->link[link_id].conn_flags); | |
1136 | ADD_PRESENT_ELEM(WLAN_EID_HT_CAPABILITY); | |
1137 | } | |
978420c2 JB |
1138 | |
1139 | /* if present, add any custom IEs that go before VHT */ | |
1140 | offset = ieee80211_add_before_vht_elems(skb, extra_elems, | |
1141 | extra_elems_len, | |
1142 | offset); | |
1143 | ||
1144 | if (sband->band != NL80211_BAND_6GHZ && | |
81151ce4 JB |
1145 | !(assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_VHT)) { |
1146 | bool mu_mimo_owner = | |
978420c2 | 1147 | ieee80211_add_vht_ie(sdata, skb, sband, |
81151ce4 JB |
1148 | &assoc_data->link[link_id].ap_vht_cap, |
1149 | assoc_data->link[link_id].conn_flags); | |
1150 | ||
1151 | if (link) | |
1152 | link->conf->mu_mimo_owner = mu_mimo_owner; | |
1153 | ADD_PRESENT_ELEM(WLAN_EID_VHT_CAPABILITY); | |
1154 | } | |
978420c2 JB |
1155 | |
1156 | /* | |
1157 | * If AP doesn't support HT, mark HE and EHT as disabled. | |
1158 | * If on the 5GHz band, make sure it supports VHT. | |
1159 | */ | |
81151ce4 | 1160 | if (assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_HT || |
978420c2 | 1161 | (sband->band == NL80211_BAND_5GHZ && |
81151ce4 JB |
1162 | assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_VHT)) |
1163 | assoc_data->link[link_id].conn_flags |= | |
978420c2 JB |
1164 | IEEE80211_CONN_DISABLE_HE | |
1165 | IEEE80211_CONN_DISABLE_EHT; | |
1166 | ||
1167 | /* if present, add any custom IEs that go before HE */ | |
1168 | offset = ieee80211_add_before_he_elems(skb, extra_elems, | |
1169 | extra_elems_len, | |
1170 | offset); | |
1171 | ||
81151ce4 | 1172 | if (!(assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_HE)) { |
abd27d06 | 1173 | ieee80211_add_he_ie(sdata, skb, sband, smps_mode, |
81151ce4 JB |
1174 | assoc_data->link[link_id].conn_flags); |
1175 | ADD_PRESENT_EXT_ELEM(WLAN_EID_EXT_HE_CAPABILITY); | |
1176 | } | |
978420c2 | 1177 | |
81151ce4 JB |
1178 | /* |
1179 | * careful - need to know about all the present elems before | |
1180 | * calling ieee80211_assoc_add_ml_elem(), so add this one if | |
1181 | * we're going to put it after the ML element | |
1182 | */ | |
1183 | if (!(assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_EHT)) | |
1184 | ADD_PRESENT_EXT_ELEM(WLAN_EID_EXT_EHT_CAPABILITY); | |
1185 | ||
1186 | if (link_id == assoc_data->assoc_link_id) | |
1187 | ieee80211_assoc_add_ml_elem(sdata, skb, orig_capab, ext_capa, | |
1188 | present_elems); | |
1189 | ||
1190 | /* crash if somebody gets it wrong */ | |
1191 | present_elems = NULL; | |
1192 | ||
1193 | if (!(assoc_data->link[link_id].conn_flags & IEEE80211_CONN_DISABLE_EHT)) | |
978420c2 JB |
1194 | ieee80211_add_eht_ie(sdata, skb, sband); |
1195 | ||
1196 | if (sband->band == NL80211_BAND_S1GHZ) { | |
1197 | ieee80211_add_aid_request_ie(sdata, skb); | |
1198 | ieee80211_add_s1g_capab_ie(sdata, &sband->s1g_cap, skb); | |
1199 | } | |
1200 | ||
1201 | if (iftd && iftd->vendor_elems.data && iftd->vendor_elems.len) | |
1202 | skb_put_data(skb, iftd->vendor_elems.data, iftd->vendor_elems.len); | |
1203 | ||
81151ce4 JB |
1204 | if (link) |
1205 | link->u.mgd.conn_flags = assoc_data->link[link_id].conn_flags; | |
1206 | ||
978420c2 JB |
1207 | return offset; |
1208 | } | |
1209 | ||
81151ce4 JB |
1210 | static void ieee80211_add_non_inheritance_elem(struct sk_buff *skb, |
1211 | const u16 *outer, | |
1212 | const u16 *inner) | |
1213 | { | |
1214 | unsigned int skb_len = skb->len; | |
68c22855 | 1215 | bool at_extension = false; |
81151ce4 JB |
1216 | bool added = false; |
1217 | int i, j; | |
1218 | u8 *len, *list_len = NULL; | |
1219 | ||
1220 | skb_put_u8(skb, WLAN_EID_EXTENSION); | |
1221 | len = skb_put(skb, 1); | |
1222 | skb_put_u8(skb, WLAN_EID_EXT_NON_INHERITANCE); | |
1223 | ||
1224 | for (i = 0; i < PRESENT_ELEMS_MAX && outer[i]; i++) { | |
1225 | u16 elem = outer[i]; | |
1226 | bool have_inner = false; | |
81151ce4 JB |
1227 | |
1228 | /* should at least be sorted in the sense of normal -> ext */ | |
1229 | WARN_ON(at_extension && elem < PRESENT_ELEM_EXT_OFFS); | |
1230 | ||
1231 | /* switch to extension list */ | |
1232 | if (!at_extension && elem >= PRESENT_ELEM_EXT_OFFS) { | |
1233 | at_extension = true; | |
1234 | if (!list_len) | |
1235 | skb_put_u8(skb, 0); | |
1236 | list_len = NULL; | |
1237 | } | |
1238 | ||
1239 | for (j = 0; j < PRESENT_ELEMS_MAX && inner[j]; j++) { | |
1240 | if (elem == inner[j]) { | |
1241 | have_inner = true; | |
1242 | break; | |
1243 | } | |
1244 | } | |
1245 | ||
1246 | if (have_inner) | |
1247 | continue; | |
1248 | ||
1249 | if (!list_len) { | |
1250 | list_len = skb_put(skb, 1); | |
1251 | *list_len = 0; | |
1252 | } | |
1253 | *list_len += 1; | |
1254 | skb_put_u8(skb, (u8)elem); | |
68c22855 | 1255 | added = true; |
81151ce4 JB |
1256 | } |
1257 | ||
68c22855 JB |
1258 | /* if we added a list but no extension list, make a zero-len one */ |
1259 | if (added && (!at_extension || !list_len)) | |
1260 | skb_put_u8(skb, 0); | |
1261 | ||
1262 | /* if nothing added remove extension element completely */ | |
81151ce4 JB |
1263 | if (!added) |
1264 | skb_trim(skb, skb_len); | |
1265 | else | |
1266 | *len = skb->len - skb_len - 2; | |
1267 | } | |
1268 | ||
1269 | static void ieee80211_assoc_add_ml_elem(struct ieee80211_sub_if_data *sdata, | |
1270 | struct sk_buff *skb, u16 capab, | |
1271 | const struct element *ext_capa, | |
1272 | const u16 *outer_present_elems) | |
1273 | { | |
1274 | struct ieee80211_local *local = sdata->local; | |
1275 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
1276 | struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; | |
1277 | struct ieee80211_multi_link_elem *ml_elem; | |
1278 | struct ieee80211_mle_basic_common_info *common; | |
1279 | const struct wiphy_iftype_ext_capab *ift_ext_capa; | |
1280 | __le16 eml_capa = 0, mld_capa_ops = 0; | |
1281 | unsigned int link_id; | |
1282 | u8 *ml_elem_len; | |
1283 | void *capab_pos; | |
1284 | ||
f1871abd | 1285 | if (!ieee80211_vif_is_mld(&sdata->vif)) |
81151ce4 JB |
1286 | return; |
1287 | ||
1288 | ift_ext_capa = cfg80211_get_iftype_ext_capa(local->hw.wiphy, | |
1289 | ieee80211_vif_type_p2p(&sdata->vif)); | |
1290 | if (ift_ext_capa) { | |
1291 | eml_capa = cpu_to_le16(ift_ext_capa->eml_capabilities); | |
1292 | mld_capa_ops = cpu_to_le16(ift_ext_capa->mld_capa_and_ops); | |
1293 | } | |
1294 | ||
1295 | skb_put_u8(skb, WLAN_EID_EXTENSION); | |
1296 | ml_elem_len = skb_put(skb, 1); | |
1297 | skb_put_u8(skb, WLAN_EID_EXT_EHT_MULTI_LINK); | |
1298 | ml_elem = skb_put(skb, sizeof(*ml_elem)); | |
1299 | ml_elem->control = | |
1300 | cpu_to_le16(IEEE80211_ML_CONTROL_TYPE_BASIC | | |
81151ce4 JB |
1301 | IEEE80211_MLC_BASIC_PRES_MLD_CAPA_OP); |
1302 | common = skb_put(skb, sizeof(*common)); | |
1303 | common->len = sizeof(*common) + | |
81151ce4 JB |
1304 | 2; /* MLD capa/ops */ |
1305 | memcpy(common->mld_mac_addr, sdata->vif.addr, ETH_ALEN); | |
1cb3cf37 MG |
1306 | |
1307 | /* add EML_CAPA only if needed, see Draft P802.11be_D2.1, 35.3.17 */ | |
1308 | if (eml_capa & | |
1309 | cpu_to_le16((IEEE80211_EML_CAP_EMLSR_SUPP | | |
1310 | IEEE80211_EML_CAP_EMLMR_SUPPORT))) { | |
1311 | common->len += 2; /* EML capabilities */ | |
1312 | ml_elem->control |= | |
1313 | cpu_to_le16(IEEE80211_MLC_BASIC_PRES_EML_CAPA); | |
1314 | skb_put_data(skb, &eml_capa, sizeof(eml_capa)); | |
1315 | } | |
81151ce4 JB |
1316 | /* need indication from userspace to support this */ |
1317 | mld_capa_ops &= ~cpu_to_le16(IEEE80211_MLD_CAP_OP_TID_TO_LINK_MAP_NEG_SUPP); | |
1318 | skb_put_data(skb, &mld_capa_ops, sizeof(mld_capa_ops)); | |
1319 | ||
1320 | for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { | |
1321 | u16 link_present_elems[PRESENT_ELEMS_MAX] = {}; | |
1322 | const u8 *extra_elems; | |
1323 | size_t extra_elems_len; | |
1324 | size_t extra_used; | |
1325 | u8 *subelem_len = NULL; | |
1326 | __le16 ctrl; | |
1327 | ||
1328 | if (!assoc_data->link[link_id].bss || | |
1329 | link_id == assoc_data->assoc_link_id) | |
1330 | continue; | |
1331 | ||
1332 | extra_elems = assoc_data->link[link_id].elems; | |
1333 | extra_elems_len = assoc_data->link[link_id].elems_len; | |
1334 | ||
1335 | skb_put_u8(skb, IEEE80211_MLE_SUBELEM_PER_STA_PROFILE); | |
1336 | subelem_len = skb_put(skb, 1); | |
1337 | ||
1338 | ctrl = cpu_to_le16(link_id | | |
1339 | IEEE80211_MLE_STA_CONTROL_COMPLETE_PROFILE | | |
1340 | IEEE80211_MLE_STA_CONTROL_STA_MAC_ADDR_PRESENT); | |
1341 | skb_put_data(skb, &ctrl, sizeof(ctrl)); | |
1342 | skb_put_u8(skb, 1 + ETH_ALEN); /* STA Info Length */ | |
1343 | skb_put_data(skb, assoc_data->link[link_id].addr, | |
1344 | ETH_ALEN); | |
1345 | /* | |
1346 | * Now add the contents of the (re)association request, | |
1347 | * but the "listen interval" and "current AP address" | |
1348 | * (if applicable) are skipped. So we only have | |
1349 | * the capability field (remember the position and fill | |
1350 | * later), followed by the elements added below by | |
1351 | * calling ieee80211_assoc_link_elems(). | |
1352 | */ | |
1353 | capab_pos = skb_put(skb, 2); | |
1354 | ||
1355 | extra_used = ieee80211_assoc_link_elems(sdata, skb, &capab, | |
1356 | ext_capa, | |
1357 | extra_elems, | |
1358 | extra_elems_len, | |
1359 | link_id, NULL, | |
1360 | link_present_elems); | |
1361 | if (extra_elems) | |
1362 | skb_put_data(skb, extra_elems + extra_used, | |
1363 | extra_elems_len - extra_used); | |
1364 | ||
1365 | put_unaligned_le16(capab, capab_pos); | |
1366 | ||
1367 | ieee80211_add_non_inheritance_elem(skb, outer_present_elems, | |
1368 | link_present_elems); | |
1369 | ||
d094482c BB |
1370 | ieee80211_fragment_element(skb, subelem_len, |
1371 | IEEE80211_MLE_SUBELEM_FRAGMENT); | |
81151ce4 JB |
1372 | } |
1373 | ||
d094482c | 1374 | ieee80211_fragment_element(skb, ml_elem_len, WLAN_EID_FRAGMENT); |
81151ce4 JB |
1375 | } |
1376 | ||
a72c01a9 | 1377 | static int ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) |
66e67e41 JB |
1378 | { |
1379 | struct ieee80211_local *local = sdata->local; | |
1380 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
1381 | struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; | |
81151ce4 | 1382 | struct ieee80211_link_data *link; |
66e67e41 JB |
1383 | struct sk_buff *skb; |
1384 | struct ieee80211_mgmt *mgmt; | |
4d9ec73d | 1385 | u8 *pos, qos_info, *ie_start; |
978420c2 | 1386 | size_t offset, noffset; |
81151ce4 | 1387 | u16 capab = WLAN_CAPABILITY_ESS, link_capab; |
05d10957 | 1388 | __le16 listen_int; |
2ff69b0e | 1389 | struct element *ext_capa = NULL; |
9bd6a83e | 1390 | enum nl80211_iftype iftype = ieee80211_vif_type_p2p(&sdata->vif); |
15fae341 | 1391 | struct ieee80211_prep_tx_info info = {}; |
81151ce4 JB |
1392 | unsigned int link_id, n_links = 0; |
1393 | u16 present_elems[PRESENT_ELEMS_MAX] = {}; | |
978420c2 | 1394 | void *capab_pos; |
81151ce4 | 1395 | size_t size; |
a72c01a9 | 1396 | int ret; |
2ff69b0e JB |
1397 | |
1398 | /* we know it's writable, cast away the const */ | |
1399 | if (assoc_data->ie_len) | |
1400 | ext_capa = (void *)cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, | |
1401 | assoc_data->ie, | |
1402 | assoc_data->ie_len); | |
66e67e41 | 1403 | |
8d61ffa5 | 1404 | sdata_assert_lock(sdata); |
66e67e41 | 1405 | |
81151ce4 JB |
1406 | size = local->hw.extra_tx_headroom + |
1407 | sizeof(*mgmt) + /* bit too much but doesn't matter */ | |
1408 | 2 + assoc_data->ssid_len + /* SSID */ | |
1409 | assoc_data->ie_len + /* extra IEs */ | |
1410 | (assoc_data->fils_kek_len ? 16 /* AES-SIV */ : 0) + | |
1411 | 9; /* WMM */ | |
66e67e41 | 1412 | |
81151ce4 JB |
1413 | for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { |
1414 | struct cfg80211_bss *cbss = assoc_data->link[link_id].bss; | |
1415 | const struct ieee80211_sband_iftype_data *iftd; | |
1416 | struct ieee80211_supported_band *sband; | |
1417 | ||
1418 | if (!cbss) | |
1419 | continue; | |
1420 | ||
1421 | sband = local->hw.wiphy->bands[cbss->channel->band]; | |
1422 | ||
1423 | n_links++; | |
1424 | /* add STA profile elements length */ | |
1425 | size += assoc_data->link[link_id].elems_len; | |
1426 | /* and supported rates length */ | |
1427 | size += 4 + sband->n_bitrates; | |
1428 | /* supported channels */ | |
1429 | size += 2 + 2 * sband->n_channels; | |
1430 | ||
1431 | iftd = ieee80211_get_sband_iftype_data(sband, iftype); | |
1432 | if (iftd) | |
1433 | size += iftd->vendor_elems.len; | |
1434 | ||
1435 | /* power capability */ | |
1436 | size += 4; | |
1437 | ||
1438 | /* HT, VHT, HE, EHT */ | |
1439 | size += 2 + sizeof(struct ieee80211_ht_cap); | |
1440 | size += 2 + sizeof(struct ieee80211_vht_cap); | |
1441 | size += 2 + 1 + sizeof(struct ieee80211_he_cap_elem) + | |
1442 | sizeof(struct ieee80211_he_mcs_nss_supp) + | |
1443 | IEEE80211_HE_PPE_THRES_MAX_LEN; | |
9bd6a83e | 1444 | |
81151ce4 JB |
1445 | if (sband->band == NL80211_BAND_6GHZ) |
1446 | size += 2 + 1 + sizeof(struct ieee80211_he_6ghz_capa); | |
1447 | ||
1448 | size += 2 + 1 + sizeof(struct ieee80211_eht_cap_elem) + | |
a95fe067 | 1449 | sizeof(struct ieee80211_eht_mcs_nss_supp) + |
81151ce4 JB |
1450 | IEEE80211_EHT_PPE_THRES_MAX_LEN; |
1451 | ||
1452 | /* non-inheritance element */ | |
1453 | size += 2 + 2 + PRESENT_ELEMS_MAX; | |
1454 | ||
1455 | /* should be the same across all BSSes */ | |
1456 | if (cbss->capability & WLAN_CAPABILITY_PRIVACY) | |
1457 | capab |= WLAN_CAPABILITY_PRIVACY; | |
1458 | } | |
1459 | ||
f1871abd | 1460 | if (ieee80211_vif_is_mld(&sdata->vif)) { |
81151ce4 JB |
1461 | /* consider the multi-link element with STA profile */ |
1462 | size += sizeof(struct ieee80211_multi_link_elem); | |
1463 | /* max common info field in basic multi-link element */ | |
1464 | size += sizeof(struct ieee80211_mle_basic_common_info) + | |
1465 | 2 + /* capa & op */ | |
1466 | 2; /* EML capa */ | |
1467 | ||
1468 | /* | |
1469 | * The capability elements were already considered above; | |
1470 | * note this over-estimates a bit because there's no | |
1471 | * STA profile for the assoc link. | |
1472 | */ | |
1473 | size += (n_links - 1) * | |
1474 | (1 + 1 + /* subelement ID/length */ | |
1475 | 2 + /* STA control */ | |
1476 | 1 + ETH_ALEN + 2 /* STA Info field */); | |
1477 | } | |
1478 | ||
1479 | link = sdata_dereference(sdata->link[assoc_data->assoc_link_id], sdata); | |
1480 | if (WARN_ON(!link)) | |
1481 | return -EINVAL; | |
1482 | ||
1483 | if (WARN_ON(!assoc_data->link[assoc_data->assoc_link_id].bss)) | |
1484 | return -EINVAL; | |
1485 | ||
81151ce4 | 1486 | skb = alloc_skb(size, GFP_KERNEL); |
66e67e41 | 1487 | if (!skb) |
a72c01a9 | 1488 | return -ENOMEM; |
66e67e41 JB |
1489 | |
1490 | skb_reserve(skb, local->hw.extra_tx_headroom); | |
1491 | ||
cd2f5dd7 AK |
1492 | if (ifmgd->flags & IEEE80211_STA_ENABLE_RRM) |
1493 | capab |= WLAN_CAPABILITY_RADIO_MEASURE; | |
1494 | ||
978420c2 JB |
1495 | /* Set MBSSID support for HE AP if needed */ |
1496 | if (ieee80211_hw_check(&local->hw, SUPPORTS_ONLY_HE_MULTI_BSSID) && | |
1497 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && | |
1498 | ext_capa && ext_capa->datalen >= 3) | |
1499 | ext_capa->data[2] |= WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT; | |
1500 | ||
b080db58 | 1501 | mgmt = skb_put_zero(skb, 24); |
4ca04ed3 JB |
1502 | memcpy(mgmt->da, sdata->vif.cfg.ap_addr, ETH_ALEN); |
1503 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); | |
1504 | memcpy(mgmt->bssid, sdata->vif.cfg.ap_addr, ETH_ALEN); | |
66e67e41 | 1505 | |
81151ce4 | 1506 | listen_int = cpu_to_le16(assoc_data->s1g ? |
05d10957 TP |
1507 | ieee80211_encode_usf(local->hw.conf.listen_interval) : |
1508 | local->hw.conf.listen_interval); | |
81151ce4 | 1509 | if (!is_zero_ether_addr(assoc_data->prev_ap_addr)) { |
66e67e41 JB |
1510 | skb_put(skb, 10); |
1511 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
1512 | IEEE80211_STYPE_REASSOC_REQ); | |
978420c2 | 1513 | capab_pos = &mgmt->u.reassoc_req.capab_info; |
05d10957 | 1514 | mgmt->u.reassoc_req.listen_interval = listen_int; |
81151ce4 JB |
1515 | memcpy(mgmt->u.reassoc_req.current_ap, |
1516 | assoc_data->prev_ap_addr, ETH_ALEN); | |
15fae341 | 1517 | info.subtype = IEEE80211_STYPE_REASSOC_REQ; |
66e67e41 JB |
1518 | } else { |
1519 | skb_put(skb, 4); | |
1520 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | | |
1521 | IEEE80211_STYPE_ASSOC_REQ); | |
978420c2 | 1522 | capab_pos = &mgmt->u.assoc_req.capab_info; |
05d10957 | 1523 | mgmt->u.assoc_req.listen_interval = listen_int; |
15fae341 | 1524 | info.subtype = IEEE80211_STYPE_ASSOC_REQ; |
66e67e41 JB |
1525 | } |
1526 | ||
1527 | /* SSID */ | |
1528 | pos = skb_put(skb, 2 + assoc_data->ssid_len); | |
4d9ec73d | 1529 | ie_start = pos; |
66e67e41 JB |
1530 | *pos++ = WLAN_EID_SSID; |
1531 | *pos++ = assoc_data->ssid_len; | |
1532 | memcpy(pos, assoc_data->ssid, assoc_data->ssid_len); | |
1533 | ||
978420c2 | 1534 | /* add the elements for the assoc (main) link */ |
81151ce4 JB |
1535 | link_capab = capab; |
1536 | offset = ieee80211_assoc_link_elems(sdata, skb, &link_capab, | |
978420c2 JB |
1537 | ext_capa, |
1538 | assoc_data->ie, | |
1539 | assoc_data->ie_len, | |
81151ce4 JB |
1540 | assoc_data->assoc_link_id, link, |
1541 | present_elems); | |
1542 | put_unaligned_le16(link_capab, capab_pos); | |
66e67e41 | 1543 | |
978420c2 | 1544 | /* if present, add any custom non-vendor IEs */ |
b3f51e94 | 1545 | if (assoc_data->ie_len) { |
66e67e41 JB |
1546 | noffset = ieee80211_ie_split_vendor(assoc_data->ie, |
1547 | assoc_data->ie_len, | |
1548 | offset); | |
b952f4df | 1549 | skb_put_data(skb, assoc_data->ie + offset, noffset - offset); |
66e67e41 JB |
1550 | offset = noffset; |
1551 | } | |
1552 | ||
76f0303d JB |
1553 | if (assoc_data->wmm) { |
1554 | if (assoc_data->uapsd) { | |
dc41e4d4 EP |
1555 | qos_info = ifmgd->uapsd_queues; |
1556 | qos_info |= (ifmgd->uapsd_max_sp_len << | |
66e67e41 JB |
1557 | IEEE80211_WMM_IE_STA_QOSINFO_SP_SHIFT); |
1558 | } else { | |
1559 | qos_info = 0; | |
1560 | } | |
1561 | ||
40b861a0 | 1562 | pos = ieee80211_add_wmm_info_ie(skb_put(skb, 9), qos_info); |
66e67e41 JB |
1563 | } |
1564 | ||
1565 | /* add any remaining custom (i.e. vendor specific here) IEs */ | |
b3f51e94 | 1566 | if (assoc_data->ie_len) { |
66e67e41 | 1567 | noffset = assoc_data->ie_len; |
b952f4df | 1568 | skb_put_data(skb, assoc_data->ie + offset, noffset - offset); |
66e67e41 JB |
1569 | } |
1570 | ||
a72c01a9 JJ |
1571 | if (assoc_data->fils_kek_len) { |
1572 | ret = fils_encrypt_assoc_req(skb, assoc_data); | |
1573 | if (ret < 0) { | |
1574 | dev_kfree_skb(skb); | |
1575 | return ret; | |
1576 | } | |
39404fee JM |
1577 | } |
1578 | ||
4d9ec73d JM |
1579 | pos = skb_tail_pointer(skb); |
1580 | kfree(ifmgd->assoc_req_ies); | |
1581 | ifmgd->assoc_req_ies = kmemdup(ie_start, pos - ie_start, GFP_ATOMIC); | |
a72c01a9 JJ |
1582 | if (!ifmgd->assoc_req_ies) { |
1583 | dev_kfree_skb(skb); | |
1584 | return -ENOMEM; | |
1585 | } | |
1586 | ||
4d9ec73d JM |
1587 | ifmgd->assoc_req_ies_len = pos - ie_start; |
1588 | ||
15fae341 | 1589 | drv_mgd_prepare_tx(local, sdata, &info); |
a1845fc7 | 1590 | |
66e67e41 | 1591 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; |
30686bf7 | 1592 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
1672c0e3 JB |
1593 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | |
1594 | IEEE80211_TX_INTFL_MLME_CONN_TX; | |
66e67e41 | 1595 | ieee80211_tx_skb(sdata, skb); |
a72c01a9 JJ |
1596 | |
1597 | return 0; | |
66e67e41 JB |
1598 | } |
1599 | ||
572e0012 KV |
1600 | void ieee80211_send_pspoll(struct ieee80211_local *local, |
1601 | struct ieee80211_sub_if_data *sdata) | |
1602 | { | |
572e0012 KV |
1603 | struct ieee80211_pspoll *pspoll; |
1604 | struct sk_buff *skb; | |
572e0012 | 1605 | |
d8cd189e KV |
1606 | skb = ieee80211_pspoll_get(&local->hw, &sdata->vif); |
1607 | if (!skb) | |
572e0012 | 1608 | return; |
572e0012 | 1609 | |
d8cd189e KV |
1610 | pspoll = (struct ieee80211_pspoll *) skb->data; |
1611 | pspoll->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); | |
572e0012 | 1612 | |
62ae67be JB |
1613 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; |
1614 | ieee80211_tx_skb(sdata, skb); | |
572e0012 KV |
1615 | } |
1616 | ||
965bedad JB |
1617 | void ieee80211_send_nullfunc(struct ieee80211_local *local, |
1618 | struct ieee80211_sub_if_data *sdata, | |
076cdcb1 | 1619 | bool powersave) |
965bedad JB |
1620 | { |
1621 | struct sk_buff *skb; | |
d8cd189e | 1622 | struct ieee80211_hdr_3addr *nullfunc; |
b6f35301 | 1623 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
965bedad | 1624 | |
0ab26380 JB |
1625 | skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif, -1, |
1626 | !ieee80211_hw_check(&local->hw, | |
1627 | DOESNT_SUPPORT_QOS_NDP)); | |
d8cd189e | 1628 | if (!skb) |
965bedad | 1629 | return; |
965bedad | 1630 | |
d8cd189e | 1631 | nullfunc = (struct ieee80211_hdr_3addr *) skb->data; |
965bedad | 1632 | if (powersave) |
d8cd189e | 1633 | nullfunc->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); |
965bedad | 1634 | |
6c17b77b SF |
1635 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT | |
1636 | IEEE80211_TX_INTFL_OFFCHAN_TX_OK; | |
ff40b425 | 1637 | |
30686bf7 | 1638 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
ff40b425 PF |
1639 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS; |
1640 | ||
392b9ffb | 1641 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) |
b6f35301 RM |
1642 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE; |
1643 | ||
62ae67be | 1644 | ieee80211_tx_skb(sdata, skb); |
965bedad JB |
1645 | } |
1646 | ||
a5d3cbdb FF |
1647 | void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local, |
1648 | struct ieee80211_sub_if_data *sdata) | |
d524215f FF |
1649 | { |
1650 | struct sk_buff *skb; | |
1651 | struct ieee80211_hdr *nullfunc; | |
1652 | __le16 fc; | |
1653 | ||
1654 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
1655 | return; | |
1656 | ||
1657 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + 30); | |
d15b8459 | 1658 | if (!skb) |
d524215f | 1659 | return; |
d15b8459 | 1660 | |
d524215f FF |
1661 | skb_reserve(skb, local->hw.extra_tx_headroom); |
1662 | ||
b080db58 | 1663 | nullfunc = skb_put_zero(skb, 30); |
d524215f FF |
1664 | fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC | |
1665 | IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS); | |
1666 | nullfunc->frame_control = fc; | |
bfd8403a | 1667 | memcpy(nullfunc->addr1, sdata->deflink.u.mgd.bssid, ETH_ALEN); |
d524215f | 1668 | memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); |
bfd8403a | 1669 | memcpy(nullfunc->addr3, sdata->deflink.u.mgd.bssid, ETH_ALEN); |
d524215f FF |
1670 | memcpy(nullfunc->addr4, sdata->vif.addr, ETH_ALEN); |
1671 | ||
1672 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; | |
bf326cf5 | 1673 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE; |
d524215f FF |
1674 | ieee80211_tx_skb(sdata, skb); |
1675 | } | |
1676 | ||
cc32abd4 | 1677 | /* spectrum management related things */ |
ec3252bf JB |
1678 | static void ieee80211_chswitch_work(struct wiphy *wiphy, |
1679 | struct wiphy_work *work) | |
cc32abd4 | 1680 | { |
5bd5666d | 1681 | struct ieee80211_link_data *link = |
ec3252bf JB |
1682 | container_of(work, struct ieee80211_link_data, |
1683 | u.mgd.chswitch_work.work); | |
5bd5666d | 1684 | struct ieee80211_sub_if_data *sdata = link->sdata; |
675a0b04 | 1685 | struct ieee80211_local *local = sdata->local; |
cc32abd4 | 1686 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
7578d575 | 1687 | int ret; |
cc32abd4 | 1688 | |
9607e6b6 | 1689 | if (!ieee80211_sdata_running(sdata)) |
cc32abd4 JB |
1690 | return; |
1691 | ||
8d61ffa5 | 1692 | sdata_lock(sdata); |
4c3ebc56 MK |
1693 | mutex_lock(&local->mtx); |
1694 | mutex_lock(&local->chanctx_mtx); | |
1695 | ||
77fdaa12 JB |
1696 | if (!ifmgd->associated) |
1697 | goto out; | |
cc32abd4 | 1698 | |
5bd5666d | 1699 | if (!link->conf->csa_active) |
4c3ebc56 MK |
1700 | goto out; |
1701 | ||
1702 | /* | |
1703 | * using reservation isn't immediate as it may be deferred until later | |
1704 | * with multi-vif. once reservation is complete it will re-schedule the | |
1705 | * work with no reserved_chanctx so verify chandef to check if it | |
1706 | * completed successfully | |
1707 | */ | |
1708 | ||
5bd5666d | 1709 | if (link->reserved_chanctx) { |
4c3ebc56 MK |
1710 | /* |
1711 | * with multi-vif csa driver may call ieee80211_csa_finish() | |
1712 | * many times while waiting for other interfaces to use their | |
1713 | * reservations | |
1714 | */ | |
5bd5666d | 1715 | if (link->reserved_ready) |
4c3ebc56 MK |
1716 | goto out; |
1717 | ||
5bd5666d | 1718 | ret = ieee80211_link_use_reserved_context(link); |
4c3ebc56 MK |
1719 | if (ret) { |
1720 | sdata_info(sdata, | |
1721 | "failed to use reserved channel context, disconnecting (err=%d)\n", | |
1722 | ret); | |
4b8d43f1 JB |
1723 | wiphy_work_queue(sdata->local->hw.wiphy, |
1724 | &ifmgd->csa_connection_drop_work); | |
4c3ebc56 MK |
1725 | goto out; |
1726 | } | |
1727 | ||
1728 | goto out; | |
1729 | } | |
1730 | ||
5bd5666d JB |
1731 | if (!cfg80211_chandef_identical(&link->conf->chandef, |
1732 | &link->csa_chandef)) { | |
7578d575 | 1733 | sdata_info(sdata, |
4c3ebc56 | 1734 | "failed to finalize channel switch, disconnecting\n"); |
4b8d43f1 JB |
1735 | wiphy_work_queue(sdata->local->hw.wiphy, |
1736 | &ifmgd->csa_connection_drop_work); | |
7578d575 AN |
1737 | goto out; |
1738 | } | |
675a0b04 | 1739 | |
5bd5666d | 1740 | link->u.mgd.csa_waiting_bcn = true; |
0c21e632 LC |
1741 | |
1742 | ieee80211_sta_reset_beacon_monitor(sdata); | |
1743 | ieee80211_sta_reset_conn_monitor(sdata); | |
1744 | ||
1745 | out: | |
1746 | mutex_unlock(&local->chanctx_mtx); | |
1747 | mutex_unlock(&local->mtx); | |
1748 | sdata_unlock(sdata); | |
1749 | } | |
1750 | ||
5bd5666d | 1751 | static void ieee80211_chswitch_post_beacon(struct ieee80211_link_data *link) |
0c21e632 | 1752 | { |
5bd5666d | 1753 | struct ieee80211_sub_if_data *sdata = link->sdata; |
0c21e632 LC |
1754 | struct ieee80211_local *local = sdata->local; |
1755 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
1756 | int ret; | |
1757 | ||
1758 | sdata_assert_lock(sdata); | |
1759 | ||
5bd5666d | 1760 | WARN_ON(!link->conf->csa_active); |
4c3ebc56 | 1761 | |
5bd5666d | 1762 | if (link->csa_block_tx) { |
a46992b4 LC |
1763 | ieee80211_wake_vif_queues(local, sdata, |
1764 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
5bd5666d | 1765 | link->csa_block_tx = false; |
a46992b4 | 1766 | } |
7578d575 | 1767 | |
5bd5666d JB |
1768 | link->conf->csa_active = false; |
1769 | link->u.mgd.csa_waiting_bcn = false; | |
d6843d1e EG |
1770 | /* |
1771 | * If the CSA IE is still present on the beacon after the switch, | |
1772 | * we need to consider it as a new CSA (possibly to self). | |
1773 | */ | |
5bd5666d | 1774 | link->u.mgd.beacon_crc_valid = false; |
0c21e632 | 1775 | |
f1d65583 LC |
1776 | ret = drv_post_channel_switch(sdata); |
1777 | if (ret) { | |
1778 | sdata_info(sdata, | |
1779 | "driver post channel switch failed, disconnecting\n"); | |
4b8d43f1 JB |
1780 | wiphy_work_queue(sdata->local->hw.wiphy, |
1781 | &ifmgd->csa_connection_drop_work); | |
0c21e632 | 1782 | return; |
f1d65583 | 1783 | } |
688b1ecf | 1784 | |
b345f063 | 1785 | cfg80211_ch_switch_notify(sdata->dev, &link->reserved_chandef, 0, 0); |
cc32abd4 JB |
1786 | } |
1787 | ||
5ce6e438 JB |
1788 | void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success) |
1789 | { | |
55de908a JB |
1790 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
1791 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
5ce6e438 | 1792 | |
f1871abd | 1793 | if (WARN_ON(ieee80211_vif_is_mld(&sdata->vif))) |
5bd5666d JB |
1794 | success = false; |
1795 | ||
5ce6e438 JB |
1796 | trace_api_chswitch_done(sdata, success); |
1797 | if (!success) { | |
882a7c69 JB |
1798 | sdata_info(sdata, |
1799 | "driver channel switch failed, disconnecting\n"); | |
4b8d43f1 JB |
1800 | wiphy_work_queue(sdata->local->hw.wiphy, |
1801 | &ifmgd->csa_connection_drop_work); | |
882a7c69 | 1802 | } else { |
ec3252bf JB |
1803 | wiphy_delayed_work_queue(sdata->local->hw.wiphy, |
1804 | &sdata->deflink.u.mgd.chswitch_work, | |
1805 | 0); | |
5ce6e438 | 1806 | } |
5ce6e438 JB |
1807 | } |
1808 | EXPORT_SYMBOL(ieee80211_chswitch_done); | |
1809 | ||
b9cc81d8 | 1810 | static void |
5bd5666d | 1811 | ieee80211_sta_abort_chanswitch(struct ieee80211_link_data *link) |
b9cc81d8 | 1812 | { |
5bd5666d | 1813 | struct ieee80211_sub_if_data *sdata = link->sdata; |
b9cc81d8 SS |
1814 | struct ieee80211_local *local = sdata->local; |
1815 | ||
1816 | if (!local->ops->abort_channel_switch) | |
1817 | return; | |
1818 | ||
1819 | mutex_lock(&local->mtx); | |
1820 | ||
1821 | mutex_lock(&local->chanctx_mtx); | |
5bd5666d | 1822 | ieee80211_link_unreserve_chanctx(link); |
b9cc81d8 SS |
1823 | mutex_unlock(&local->chanctx_mtx); |
1824 | ||
5bd5666d | 1825 | if (link->csa_block_tx) |
b9cc81d8 SS |
1826 | ieee80211_wake_vif_queues(local, sdata, |
1827 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
1828 | ||
5bd5666d JB |
1829 | link->csa_block_tx = false; |
1830 | link->conf->csa_active = false; | |
b9cc81d8 SS |
1831 | |
1832 | mutex_unlock(&local->mtx); | |
1833 | ||
1834 | drv_abort_channel_switch(sdata); | |
1835 | } | |
1836 | ||
37799e52 | 1837 | static void |
5bd5666d | 1838 | ieee80211_sta_process_chanswitch(struct ieee80211_link_data *link, |
2ba45384 LC |
1839 | u64 timestamp, u32 device_timestamp, |
1840 | struct ieee802_11_elems *elems, | |
04a161f4 | 1841 | bool beacon) |
cc32abd4 | 1842 | { |
5bd5666d | 1843 | struct ieee80211_sub_if_data *sdata = link->sdata; |
b4f286a1 | 1844 | struct ieee80211_local *local = sdata->local; |
cc32abd4 | 1845 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
5bd5666d | 1846 | struct cfg80211_bss *cbss = link->u.mgd.bss; |
4c3ebc56 | 1847 | struct ieee80211_chanctx_conf *conf; |
55de908a | 1848 | struct ieee80211_chanctx *chanctx; |
57fbcce3 | 1849 | enum nl80211_band current_band; |
c0f17eb9 | 1850 | struct ieee80211_csa_ie csa_ie; |
6d027bcc | 1851 | struct ieee80211_channel_switch ch_switch; |
2a333a0d | 1852 | struct ieee80211_bss *bss; |
ec3252bf | 1853 | unsigned long timeout; |
e6b7cde4 | 1854 | int res; |
cc32abd4 | 1855 | |
8d61ffa5 | 1856 | sdata_assert_lock(sdata); |
77fdaa12 | 1857 | |
37799e52 | 1858 | if (!cbss) |
cc32abd4 JB |
1859 | return; |
1860 | ||
e6b7cde4 | 1861 | current_band = cbss->channel->band; |
2a333a0d | 1862 | bss = (void *)cbss->priv; |
84469a45 | 1863 | res = ieee80211_parse_ch_switch_ie(sdata, elems, current_band, |
2a333a0d | 1864 | bss->vht_cap_info, |
5bd5666d JB |
1865 | link->u.mgd.conn_flags, |
1866 | link->u.mgd.bssid, &csa_ie); | |
fafd2bce SS |
1867 | |
1868 | if (!res) { | |
1869 | ch_switch.timestamp = timestamp; | |
1870 | ch_switch.device_timestamp = device_timestamp; | |
2bf973ff | 1871 | ch_switch.block_tx = csa_ie.mode; |
fafd2bce SS |
1872 | ch_switch.chandef = csa_ie.chandef; |
1873 | ch_switch.count = csa_ie.count; | |
1874 | ch_switch.delay = csa_ie.max_switch_time; | |
1875 | } | |
1876 | ||
253907ab EG |
1877 | if (res < 0) |
1878 | goto lock_and_drop_connection; | |
b9cc81d8 | 1879 | |
5bd5666d JB |
1880 | if (beacon && link->conf->csa_active && |
1881 | !link->u.mgd.csa_waiting_bcn) { | |
fafd2bce | 1882 | if (res) |
5bd5666d | 1883 | ieee80211_sta_abort_chanswitch(link); |
fafd2bce SS |
1884 | else |
1885 | drv_channel_switch_rx_beacon(sdata, &ch_switch); | |
b9cc81d8 | 1886 | return; |
5bd5666d | 1887 | } else if (link->conf->csa_active || res) { |
b9cc81d8 SS |
1888 | /* disregard subsequent announcements if already processing */ |
1889 | return; | |
1890 | } | |
cd64f2a9 | 1891 | |
5bd5666d | 1892 | if (link->conf->chandef.chan->band != |
3660944a JB |
1893 | csa_ie.chandef.chan->band) { |
1894 | sdata_info(sdata, | |
1895 | "AP %pM switches to different band (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n", | |
5bd5666d | 1896 | link->u.mgd.bssid, |
3660944a JB |
1897 | csa_ie.chandef.chan->center_freq, |
1898 | csa_ie.chandef.width, csa_ie.chandef.center_freq1, | |
1899 | csa_ie.chandef.center_freq2); | |
1900 | goto lock_and_drop_connection; | |
1901 | } | |
1902 | ||
c0f17eb9 | 1903 | if (!cfg80211_chandef_usable(local->hw.wiphy, &csa_ie.chandef, |
85220d71 JB |
1904 | IEEE80211_CHAN_DISABLED)) { |
1905 | sdata_info(sdata, | |
b6011960 TP |
1906 | "AP %pM switches to unsupported channel " |
1907 | "(%d.%03d MHz, width:%d, CF1/2: %d.%03d/%d MHz), " | |
1908 | "disconnecting\n", | |
5bd5666d | 1909 | link->u.mgd.bssid, |
c0f17eb9 | 1910 | csa_ie.chandef.chan->center_freq, |
b6011960 | 1911 | csa_ie.chandef.chan->freq_offset, |
c0f17eb9 | 1912 | csa_ie.chandef.width, csa_ie.chandef.center_freq1, |
b6011960 | 1913 | csa_ie.chandef.freq1_offset, |
c0f17eb9 | 1914 | csa_ie.chandef.center_freq2); |
3660944a | 1915 | goto lock_and_drop_connection; |
85220d71 JB |
1916 | } |
1917 | ||
f84eaa10 | 1918 | if (cfg80211_chandef_identical(&csa_ie.chandef, |
5bd5666d | 1919 | &link->conf->chandef) && |
9792875c | 1920 | (!csa_ie.mode || !beacon)) { |
5bd5666d | 1921 | if (link->u.mgd.csa_ignored_same_chan) |
f84eaa10 JB |
1922 | return; |
1923 | sdata_info(sdata, | |
1924 | "AP %pM tries to chanswitch to same channel, ignore\n", | |
5bd5666d JB |
1925 | link->u.mgd.bssid); |
1926 | link->u.mgd.csa_ignored_same_chan = true; | |
f84eaa10 JB |
1927 | return; |
1928 | } | |
1929 | ||
c5a71688 AN |
1930 | /* |
1931 | * Drop all TDLS peers - either we disconnect or move to a different | |
1932 | * channel from this point on. There's no telling what our peer will do. | |
1933 | * The TDLS WIDER_BW scenario is also problematic, as peers might now | |
1934 | * have an incompatible wider chandef. | |
1935 | */ | |
1936 | ieee80211_teardown_tdls_peers(sdata); | |
1937 | ||
4c3ebc56 | 1938 | mutex_lock(&local->mtx); |
7578d575 | 1939 | mutex_lock(&local->chanctx_mtx); |
5bd5666d | 1940 | conf = rcu_dereference_protected(link->conf->chanctx_conf, |
4c3ebc56 MK |
1941 | lockdep_is_held(&local->chanctx_mtx)); |
1942 | if (!conf) { | |
1943 | sdata_info(sdata, | |
1944 | "no channel context assigned to vif?, disconnecting\n"); | |
f3b0bbb3 | 1945 | goto drop_connection; |
4c3ebc56 MK |
1946 | } |
1947 | ||
1948 | chanctx = container_of(conf, struct ieee80211_chanctx, conf); | |
1949 | ||
0f791eb4 | 1950 | if (local->use_chanctx && |
30686bf7 | 1951 | !ieee80211_hw_check(&local->hw, CHANCTX_STA_CSA)) { |
0f791eb4 LC |
1952 | sdata_info(sdata, |
1953 | "driver doesn't support chan-switch with channel contexts\n"); | |
f3b0bbb3 | 1954 | goto drop_connection; |
55de908a JB |
1955 | } |
1956 | ||
6d027bcc LC |
1957 | if (drv_pre_channel_switch(sdata, &ch_switch)) { |
1958 | sdata_info(sdata, | |
1959 | "preparing for channel switch failed, disconnecting\n"); | |
f3b0bbb3 | 1960 | goto drop_connection; |
6d027bcc LC |
1961 | } |
1962 | ||
5bd5666d | 1963 | res = ieee80211_link_reserve_chanctx(link, &csa_ie.chandef, |
b4f85443 | 1964 | chanctx->mode, false); |
4c3ebc56 | 1965 | if (res) { |
55de908a | 1966 | sdata_info(sdata, |
4c3ebc56 MK |
1967 | "failed to reserve channel context for channel switch, disconnecting (err=%d)\n", |
1968 | res); | |
f3b0bbb3 | 1969 | goto drop_connection; |
55de908a | 1970 | } |
b4f286a1 | 1971 | mutex_unlock(&local->chanctx_mtx); |
55de908a | 1972 | |
5bd5666d JB |
1973 | link->conf->csa_active = true; |
1974 | link->csa_chandef = csa_ie.chandef; | |
1975 | link->csa_block_tx = csa_ie.mode; | |
1976 | link->u.mgd.csa_ignored_same_chan = false; | |
1977 | link->u.mgd.beacon_crc_valid = false; | |
55de908a | 1978 | |
5bd5666d | 1979 | if (link->csa_block_tx) |
a46992b4 LC |
1980 | ieee80211_stop_vif_queues(local, sdata, |
1981 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
59af6928 | 1982 | mutex_unlock(&local->mtx); |
57eebdf3 | 1983 | |
40e38c8d EG |
1984 | cfg80211_ch_switch_started_notify(sdata->dev, &csa_ie.chandef, |
1985 | link->link_id, csa_ie.count, | |
1986 | csa_ie.mode, 0); | |
2f457293 | 1987 | |
b4f286a1 | 1988 | if (local->ops->channel_switch) { |
5ce6e438 | 1989 | /* use driver's channel switch callback */ |
0f791eb4 | 1990 | drv_channel_switch(local, sdata, &ch_switch); |
5ce6e438 JB |
1991 | return; |
1992 | } | |
1993 | ||
1994 | /* channel switch handled in software */ | |
ec3252bf JB |
1995 | timeout = TU_TO_JIFFIES((max_t(int, csa_ie.count, 1) - 1) * |
1996 | cbss->beacon_interval); | |
1997 | wiphy_delayed_work_queue(local->hw.wiphy, | |
1998 | &link->u.mgd.chswitch_work, | |
1999 | timeout); | |
f3b0bbb3 | 2000 | return; |
3660944a JB |
2001 | lock_and_drop_connection: |
2002 | mutex_lock(&local->mtx); | |
2003 | mutex_lock(&local->chanctx_mtx); | |
f3b0bbb3 | 2004 | drop_connection: |
6c18b27d EG |
2005 | /* |
2006 | * This is just so that the disconnect flow will know that | |
2007 | * we were trying to switch channel and failed. In case the | |
2008 | * mode is 1 (we are not allowed to Tx), we will know not to | |
2009 | * send a deauthentication frame. Those two fields will be | |
2010 | * reset when the disconnection worker runs. | |
2011 | */ | |
5bd5666d JB |
2012 | link->conf->csa_active = true; |
2013 | link->csa_block_tx = csa_ie.mode; | |
6c18b27d | 2014 | |
4b8d43f1 JB |
2015 | wiphy_work_queue(sdata->local->hw.wiphy, |
2016 | &ifmgd->csa_connection_drop_work); | |
f3b0bbb3 JB |
2017 | mutex_unlock(&local->chanctx_mtx); |
2018 | mutex_unlock(&local->mtx); | |
cc32abd4 JB |
2019 | } |
2020 | ||
24a4e400 SG |
2021 | static bool |
2022 | ieee80211_find_80211h_pwr_constr(struct ieee80211_sub_if_data *sdata, | |
2023 | struct ieee80211_channel *channel, | |
2024 | const u8 *country_ie, u8 country_ie_len, | |
2025 | const u8 *pwr_constr_elem, | |
2026 | int *chan_pwr, int *pwr_reduction) | |
cc32abd4 | 2027 | { |
04b7b2ff JB |
2028 | struct ieee80211_country_ie_triplet *triplet; |
2029 | int chan = ieee80211_frequency_to_channel(channel->center_freq); | |
24a4e400 | 2030 | int i, chan_increment; |
04b7b2ff | 2031 | bool have_chan_pwr = false; |
cc32abd4 | 2032 | |
04b7b2ff JB |
2033 | /* Invalid IE */ |
2034 | if (country_ie_len % 2 || country_ie_len < IEEE80211_COUNTRY_IE_MIN_LEN) | |
24a4e400 | 2035 | return false; |
cc32abd4 | 2036 | |
04b7b2ff JB |
2037 | triplet = (void *)(country_ie + 3); |
2038 | country_ie_len -= 3; | |
2039 | ||
2040 | switch (channel->band) { | |
2041 | default: | |
2042 | WARN_ON_ONCE(1); | |
fc0561dc | 2043 | fallthrough; |
57fbcce3 JB |
2044 | case NL80211_BAND_2GHZ: |
2045 | case NL80211_BAND_60GHZ: | |
63fa0426 | 2046 | case NL80211_BAND_LC: |
04b7b2ff JB |
2047 | chan_increment = 1; |
2048 | break; | |
57fbcce3 | 2049 | case NL80211_BAND_5GHZ: |
04b7b2ff JB |
2050 | chan_increment = 4; |
2051 | break; | |
2dedfe1d JB |
2052 | case NL80211_BAND_6GHZ: |
2053 | /* | |
2054 | * In the 6 GHz band, the "maximum transmit power level" | |
2055 | * field in the triplets is reserved, and thus will be | |
2056 | * zero and we shouldn't use it to control TX power. | |
2057 | * The actual TX power will be given in the transmit | |
2058 | * power envelope element instead. | |
2059 | */ | |
2060 | return false; | |
cc32abd4 | 2061 | } |
04b7b2ff JB |
2062 | |
2063 | /* find channel */ | |
2064 | while (country_ie_len >= 3) { | |
2065 | u8 first_channel = triplet->chans.first_channel; | |
2066 | ||
2067 | if (first_channel >= IEEE80211_COUNTRY_EXTENSION_ID) | |
2068 | goto next; | |
2069 | ||
2070 | for (i = 0; i < triplet->chans.num_channels; i++) { | |
2071 | if (first_channel + i * chan_increment == chan) { | |
2072 | have_chan_pwr = true; | |
24a4e400 | 2073 | *chan_pwr = triplet->chans.max_power; |
04b7b2ff JB |
2074 | break; |
2075 | } | |
2076 | } | |
2077 | if (have_chan_pwr) | |
2078 | break; | |
2079 | ||
2080 | next: | |
2081 | triplet++; | |
2082 | country_ie_len -= 3; | |
2083 | } | |
2084 | ||
a5fee9cb | 2085 | if (have_chan_pwr && pwr_constr_elem) |
24a4e400 | 2086 | *pwr_reduction = *pwr_constr_elem; |
a5fee9cb MB |
2087 | else |
2088 | *pwr_reduction = 0; | |
2089 | ||
24a4e400 SG |
2090 | return have_chan_pwr; |
2091 | } | |
2092 | ||
c8d65917 SG |
2093 | static void ieee80211_find_cisco_dtpc(struct ieee80211_sub_if_data *sdata, |
2094 | struct ieee80211_channel *channel, | |
2095 | const u8 *cisco_dtpc_ie, | |
2096 | int *pwr_level) | |
2097 | { | |
2098 | /* From practical testing, the first data byte of the DTPC element | |
2099 | * seems to contain the requested dBm level, and the CLI on Cisco | |
2100 | * APs clearly state the range is -127 to 127 dBm, which indicates | |
2101 | * a signed byte, although it seemingly never actually goes negative. | |
2102 | * The other byte seems to always be zero. | |
2103 | */ | |
2104 | *pwr_level = (__s8)cisco_dtpc_ie[4]; | |
2105 | } | |
2106 | ||
15ddba5f | 2107 | static u64 ieee80211_handle_pwr_constr(struct ieee80211_link_data *link, |
24a4e400 SG |
2108 | struct ieee80211_channel *channel, |
2109 | struct ieee80211_mgmt *mgmt, | |
2110 | const u8 *country_ie, u8 country_ie_len, | |
c8d65917 SG |
2111 | const u8 *pwr_constr_ie, |
2112 | const u8 *cisco_dtpc_ie) | |
24a4e400 | 2113 | { |
5bd5666d | 2114 | struct ieee80211_sub_if_data *sdata = link->sdata; |
c8d65917 SG |
2115 | bool has_80211h_pwr = false, has_cisco_pwr = false; |
2116 | int chan_pwr = 0, pwr_reduction_80211h = 0; | |
2117 | int pwr_level_cisco, pwr_level_80211h; | |
24a4e400 | 2118 | int new_ap_level; |
a5fee9cb | 2119 | __le16 capab = mgmt->u.probe_resp.capab_info; |
04b7b2ff | 2120 | |
09a740ce TP |
2121 | if (ieee80211_is_s1g_beacon(mgmt->frame_control)) |
2122 | return 0; /* TODO */ | |
2123 | ||
a5fee9cb MB |
2124 | if (country_ie && |
2125 | (capab & cpu_to_le16(WLAN_CAPABILITY_SPECTRUM_MGMT) || | |
2126 | capab & cpu_to_le16(WLAN_CAPABILITY_RADIO_MEASURE))) { | |
24a4e400 SG |
2127 | has_80211h_pwr = ieee80211_find_80211h_pwr_constr( |
2128 | sdata, channel, country_ie, country_ie_len, | |
2129 | pwr_constr_ie, &chan_pwr, &pwr_reduction_80211h); | |
c8d65917 SG |
2130 | pwr_level_80211h = |
2131 | max_t(int, 0, chan_pwr - pwr_reduction_80211h); | |
2132 | } | |
2133 | ||
2134 | if (cisco_dtpc_ie) { | |
2135 | ieee80211_find_cisco_dtpc( | |
2136 | sdata, channel, cisco_dtpc_ie, &pwr_level_cisco); | |
2137 | has_cisco_pwr = true; | |
24a4e400 | 2138 | } |
04b7b2ff | 2139 | |
c8d65917 | 2140 | if (!has_80211h_pwr && !has_cisco_pwr) |
1ea6f9c0 | 2141 | return 0; |
04b7b2ff | 2142 | |
c8d65917 SG |
2143 | /* If we have both 802.11h and Cisco DTPC, apply both limits |
2144 | * by picking the smallest of the two power levels advertised. | |
2145 | */ | |
2146 | if (has_80211h_pwr && | |
2147 | (!has_cisco_pwr || pwr_level_80211h <= pwr_level_cisco)) { | |
a87da0cb JB |
2148 | new_ap_level = pwr_level_80211h; |
2149 | ||
5bd5666d | 2150 | if (link->ap_power_level == new_ap_level) |
a87da0cb JB |
2151 | return 0; |
2152 | ||
cef2fc1c JL |
2153 | sdata_dbg(sdata, |
2154 | "Limiting TX power to %d (%d - %d) dBm as advertised by %pM\n", | |
2155 | pwr_level_80211h, chan_pwr, pwr_reduction_80211h, | |
5bd5666d | 2156 | link->u.mgd.bssid); |
c8d65917 | 2157 | } else { /* has_cisco_pwr is always true here. */ |
a87da0cb JB |
2158 | new_ap_level = pwr_level_cisco; |
2159 | ||
5bd5666d | 2160 | if (link->ap_power_level == new_ap_level) |
a87da0cb JB |
2161 | return 0; |
2162 | ||
cef2fc1c JL |
2163 | sdata_dbg(sdata, |
2164 | "Limiting TX power to %d dBm as advertised by %pM\n", | |
5bd5666d | 2165 | pwr_level_cisco, link->u.mgd.bssid); |
c8d65917 | 2166 | } |
04b7b2ff | 2167 | |
5bd5666d | 2168 | link->ap_power_level = new_ap_level; |
1ea6f9c0 JB |
2169 | if (__ieee80211_recalc_txpower(sdata)) |
2170 | return BSS_CHANGED_TXPOWER; | |
2171 | return 0; | |
cc32abd4 JB |
2172 | } |
2173 | ||
965bedad JB |
2174 | /* powersave */ |
2175 | static void ieee80211_enable_ps(struct ieee80211_local *local, | |
2176 | struct ieee80211_sub_if_data *sdata) | |
2177 | { | |
2178 | struct ieee80211_conf *conf = &local->hw.conf; | |
2179 | ||
d5edaedc JB |
2180 | /* |
2181 | * If we are scanning right now then the parameters will | |
2182 | * take effect when scan finishes. | |
2183 | */ | |
fbe9c429 | 2184 | if (local->scanning) |
d5edaedc JB |
2185 | return; |
2186 | ||
965bedad | 2187 | if (conf->dynamic_ps_timeout > 0 && |
30686bf7 | 2188 | !ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) { |
965bedad JB |
2189 | mod_timer(&local->dynamic_ps_timer, jiffies + |
2190 | msecs_to_jiffies(conf->dynamic_ps_timeout)); | |
2191 | } else { | |
30686bf7 | 2192 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK)) |
076cdcb1 | 2193 | ieee80211_send_nullfunc(local, sdata, true); |
375177bf | 2194 | |
30686bf7 JB |
2195 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && |
2196 | ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) | |
2a13052f JO |
2197 | return; |
2198 | ||
2199 | conf->flags |= IEEE80211_CONF_PS; | |
2200 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
965bedad JB |
2201 | } |
2202 | } | |
2203 | ||
2204 | static void ieee80211_change_ps(struct ieee80211_local *local) | |
2205 | { | |
2206 | struct ieee80211_conf *conf = &local->hw.conf; | |
2207 | ||
2208 | if (local->ps_sdata) { | |
965bedad JB |
2209 | ieee80211_enable_ps(local, local->ps_sdata); |
2210 | } else if (conf->flags & IEEE80211_CONF_PS) { | |
2211 | conf->flags &= ~IEEE80211_CONF_PS; | |
2212 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
2213 | del_timer_sync(&local->dynamic_ps_timer); | |
2214 | cancel_work_sync(&local->dynamic_ps_enable_work); | |
2215 | } | |
2216 | } | |
2217 | ||
808118cb JY |
2218 | static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata) |
2219 | { | |
8c7c6b58 | 2220 | struct ieee80211_local *local = sdata->local; |
808118cb JY |
2221 | struct ieee80211_if_managed *mgd = &sdata->u.mgd; |
2222 | struct sta_info *sta = NULL; | |
c2c98fde | 2223 | bool authorized = false; |
808118cb JY |
2224 | |
2225 | if (!mgd->powersave) | |
2226 | return false; | |
2227 | ||
05cb9108 JB |
2228 | if (mgd->broken_ap) |
2229 | return false; | |
2230 | ||
808118cb JY |
2231 | if (!mgd->associated) |
2232 | return false; | |
2233 | ||
392b9ffb | 2234 | if (mgd->flags & IEEE80211_STA_CONNECTION_POLL) |
808118cb JY |
2235 | return false; |
2236 | ||
8c7c6b58 JB |
2237 | if (!(local->hw.wiphy->flags & WIPHY_FLAG_SUPPORTS_MLO) && |
2238 | !sdata->deflink.u.mgd.have_beacon) | |
ce857888 AB |
2239 | return false; |
2240 | ||
808118cb | 2241 | rcu_read_lock(); |
b65567b0 | 2242 | sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr); |
808118cb | 2243 | if (sta) |
c2c98fde | 2244 | authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED); |
808118cb JY |
2245 | rcu_read_unlock(); |
2246 | ||
c2c98fde | 2247 | return authorized; |
808118cb JY |
2248 | } |
2249 | ||
965bedad | 2250 | /* need to hold RTNL or interface lock */ |
4a733ef1 | 2251 | void ieee80211_recalc_ps(struct ieee80211_local *local) |
965bedad JB |
2252 | { |
2253 | struct ieee80211_sub_if_data *sdata, *found = NULL; | |
2254 | int count = 0; | |
195e294d | 2255 | int timeout; |
965bedad | 2256 | |
28977e79 JB |
2257 | if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS) || |
2258 | ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS)) { | |
965bedad JB |
2259 | local->ps_sdata = NULL; |
2260 | return; | |
2261 | } | |
2262 | ||
2263 | list_for_each_entry(sdata, &local->interfaces, list) { | |
9607e6b6 | 2264 | if (!ieee80211_sdata_running(sdata)) |
965bedad | 2265 | continue; |
8c7914de RM |
2266 | if (sdata->vif.type == NL80211_IFTYPE_AP) { |
2267 | /* If an AP vif is found, then disable PS | |
2268 | * by setting the count to zero thereby setting | |
2269 | * ps_sdata to NULL. | |
2270 | */ | |
2271 | count = 0; | |
2272 | break; | |
2273 | } | |
965bedad JB |
2274 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
2275 | continue; | |
2276 | found = sdata; | |
2277 | count++; | |
2278 | } | |
2279 | ||
808118cb | 2280 | if (count == 1 && ieee80211_powersave_allowed(found)) { |
bfd8403a | 2281 | u8 dtimper = found->deflink.u.mgd.dtim_period; |
10f644a4 | 2282 | |
ff616381 | 2283 | timeout = local->dynamic_ps_forced_timeout; |
4a733ef1 JB |
2284 | if (timeout < 0) |
2285 | timeout = 100; | |
09b85568 | 2286 | local->hw.conf.dynamic_ps_timeout = timeout; |
195e294d | 2287 | |
4a733ef1 JB |
2288 | /* If the TIM IE is invalid, pretend the value is 1 */ |
2289 | if (!dtimper) | |
2290 | dtimper = 1; | |
2291 | ||
2292 | local->hw.conf.ps_dtim_period = dtimper; | |
2293 | local->ps_sdata = found; | |
10f644a4 | 2294 | } else { |
965bedad | 2295 | local->ps_sdata = NULL; |
10f644a4 | 2296 | } |
965bedad JB |
2297 | |
2298 | ieee80211_change_ps(local); | |
2299 | } | |
2300 | ||
ab095877 EP |
2301 | void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata) |
2302 | { | |
2303 | bool ps_allowed = ieee80211_powersave_allowed(sdata); | |
2304 | ||
a3b8008d JB |
2305 | if (sdata->vif.cfg.ps != ps_allowed) { |
2306 | sdata->vif.cfg.ps = ps_allowed; | |
2307 | ieee80211_vif_cfg_change_notify(sdata, BSS_CHANGED_PS); | |
ab095877 EP |
2308 | } |
2309 | } | |
2310 | ||
965bedad JB |
2311 | void ieee80211_dynamic_ps_disable_work(struct work_struct *work) |
2312 | { | |
2313 | struct ieee80211_local *local = | |
2314 | container_of(work, struct ieee80211_local, | |
2315 | dynamic_ps_disable_work); | |
2316 | ||
2317 | if (local->hw.conf.flags & IEEE80211_CONF_PS) { | |
2318 | local->hw.conf.flags &= ~IEEE80211_CONF_PS; | |
2319 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
2320 | } | |
2321 | ||
2322 | ieee80211_wake_queues_by_reason(&local->hw, | |
445ea4e8 | 2323 | IEEE80211_MAX_QUEUE_MAP, |
cca07b00 LC |
2324 | IEEE80211_QUEUE_STOP_REASON_PS, |
2325 | false); | |
965bedad JB |
2326 | } |
2327 | ||
2328 | void ieee80211_dynamic_ps_enable_work(struct work_struct *work) | |
2329 | { | |
2330 | struct ieee80211_local *local = | |
2331 | container_of(work, struct ieee80211_local, | |
2332 | dynamic_ps_enable_work); | |
2333 | struct ieee80211_sub_if_data *sdata = local->ps_sdata; | |
5e34069c | 2334 | struct ieee80211_if_managed *ifmgd; |
1ddc2867 RM |
2335 | unsigned long flags; |
2336 | int q; | |
965bedad JB |
2337 | |
2338 | /* can only happen when PS was just disabled anyway */ | |
2339 | if (!sdata) | |
2340 | return; | |
2341 | ||
5e34069c CL |
2342 | ifmgd = &sdata->u.mgd; |
2343 | ||
965bedad JB |
2344 | if (local->hw.conf.flags & IEEE80211_CONF_PS) |
2345 | return; | |
2346 | ||
09b85568 | 2347 | if (local->hw.conf.dynamic_ps_timeout > 0) { |
77b7023a AN |
2348 | /* don't enter PS if TX frames are pending */ |
2349 | if (drv_tx_frames_pending(local)) { | |
1ddc2867 RM |
2350 | mod_timer(&local->dynamic_ps_timer, jiffies + |
2351 | msecs_to_jiffies( | |
2352 | local->hw.conf.dynamic_ps_timeout)); | |
2353 | return; | |
2354 | } | |
77b7023a AN |
2355 | |
2356 | /* | |
2357 | * transmission can be stopped by others which leads to | |
2358 | * dynamic_ps_timer expiry. Postpone the ps timer if it | |
2359 | * is not the actual idle state. | |
2360 | */ | |
2361 | spin_lock_irqsave(&local->queue_stop_reason_lock, flags); | |
2362 | for (q = 0; q < local->hw.queues; q++) { | |
2363 | if (local->queue_stop_reasons[q]) { | |
2364 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, | |
2365 | flags); | |
2366 | mod_timer(&local->dynamic_ps_timer, jiffies + | |
2367 | msecs_to_jiffies( | |
2368 | local->hw.conf.dynamic_ps_timeout)); | |
2369 | return; | |
2370 | } | |
2371 | } | |
2372 | spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); | |
1ddc2867 | 2373 | } |
1ddc2867 | 2374 | |
30686bf7 | 2375 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && |
9c38a8b4 | 2376 | !(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) { |
a1598383 | 2377 | if (drv_tx_frames_pending(local)) { |
e8306f98 VN |
2378 | mod_timer(&local->dynamic_ps_timer, jiffies + |
2379 | msecs_to_jiffies( | |
2380 | local->hw.conf.dynamic_ps_timeout)); | |
a1598383 | 2381 | } else { |
076cdcb1 | 2382 | ieee80211_send_nullfunc(local, sdata, true); |
e8306f98 | 2383 | /* Flush to get the tx status of nullfunc frame */ |
3b24f4c6 | 2384 | ieee80211_flush_queues(local, sdata, false); |
e8306f98 | 2385 | } |
f3e85b9e VN |
2386 | } |
2387 | ||
30686bf7 JB |
2388 | if (!(ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS) && |
2389 | ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK)) || | |
375177bf VN |
2390 | (ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) { |
2391 | ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED; | |
2392 | local->hw.conf.flags |= IEEE80211_CONF_PS; | |
2393 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
2394 | } | |
965bedad JB |
2395 | } |
2396 | ||
34f11cd3 | 2397 | void ieee80211_dynamic_ps_timer(struct timer_list *t) |
965bedad | 2398 | { |
34f11cd3 | 2399 | struct ieee80211_local *local = from_timer(local, t, dynamic_ps_timer); |
965bedad | 2400 | |
42935eca | 2401 | ieee80211_queue_work(&local->hw, &local->dynamic_ps_enable_work); |
965bedad JB |
2402 | } |
2403 | ||
164eb02d SW |
2404 | void ieee80211_dfs_cac_timer_work(struct work_struct *work) |
2405 | { | |
a85a7e28 | 2406 | struct delayed_work *delayed_work = to_delayed_work(work); |
5bd5666d JB |
2407 | struct ieee80211_link_data *link = |
2408 | container_of(delayed_work, struct ieee80211_link_data, | |
2409 | dfs_cac_timer_work); | |
2410 | struct cfg80211_chan_def chandef = link->conf->chandef; | |
2411 | struct ieee80211_sub_if_data *sdata = link->sdata; | |
164eb02d | 2412 | |
34a3740d JB |
2413 | mutex_lock(&sdata->local->mtx); |
2414 | if (sdata->wdev.cac_started) { | |
5bd5666d | 2415 | ieee80211_link_release_channel(link); |
34a3740d JB |
2416 | cfg80211_cac_event(sdata->dev, &chandef, |
2417 | NL80211_RADAR_CAC_FINISHED, | |
2418 | GFP_KERNEL); | |
2419 | } | |
2420 | mutex_unlock(&sdata->local->mtx); | |
164eb02d SW |
2421 | } |
2422 | ||
02219b3a JB |
2423 | static bool |
2424 | __ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata) | |
2425 | { | |
2426 | struct ieee80211_local *local = sdata->local; | |
2427 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
cc72f6e2 | 2428 | bool ret = false; |
02219b3a JB |
2429 | int ac; |
2430 | ||
2431 | if (local->hw.queues < IEEE80211_NUM_ACS) | |
2432 | return false; | |
2433 | ||
2434 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { | |
2435 | struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac]; | |
2436 | int non_acm_ac; | |
2437 | unsigned long now = jiffies; | |
2438 | ||
2439 | if (tx_tspec->action == TX_TSPEC_ACTION_NONE && | |
2440 | tx_tspec->admitted_time && | |
2441 | time_after(now, tx_tspec->time_slice_start + HZ)) { | |
2442 | tx_tspec->consumed_tx_time = 0; | |
2443 | tx_tspec->time_slice_start = now; | |
2444 | ||
2445 | if (tx_tspec->downgraded) | |
2446 | tx_tspec->action = | |
2447 | TX_TSPEC_ACTION_STOP_DOWNGRADE; | |
2448 | } | |
2449 | ||
2450 | switch (tx_tspec->action) { | |
2451 | case TX_TSPEC_ACTION_STOP_DOWNGRADE: | |
2452 | /* take the original parameters */ | |
b3e2130b JB |
2453 | if (drv_conf_tx(local, &sdata->deflink, ac, |
2454 | &sdata->deflink.tx_conf[ac])) | |
2455 | link_err(&sdata->deflink, | |
2456 | "failed to set TX queue parameters for queue %d\n", | |
2457 | ac); | |
02219b3a JB |
2458 | tx_tspec->action = TX_TSPEC_ACTION_NONE; |
2459 | tx_tspec->downgraded = false; | |
2460 | ret = true; | |
2461 | break; | |
2462 | case TX_TSPEC_ACTION_DOWNGRADE: | |
2463 | if (time_after(now, tx_tspec->time_slice_start + HZ)) { | |
2464 | tx_tspec->action = TX_TSPEC_ACTION_NONE; | |
2465 | ret = true; | |
2466 | break; | |
2467 | } | |
2468 | /* downgrade next lower non-ACM AC */ | |
2469 | for (non_acm_ac = ac + 1; | |
2470 | non_acm_ac < IEEE80211_NUM_ACS; | |
2471 | non_acm_ac++) | |
2472 | if (!(sdata->wmm_acm & BIT(7 - 2 * non_acm_ac))) | |
2473 | break; | |
93db1d9e JB |
2474 | /* Usually the loop will result in using BK even if it |
2475 | * requires admission control, but such a configuration | |
2476 | * makes no sense and we have to transmit somehow - the | |
2477 | * AC selection does the same thing. | |
2478 | * If we started out trying to downgrade from BK, then | |
2479 | * the extra condition here might be needed. | |
02219b3a | 2480 | */ |
93db1d9e JB |
2481 | if (non_acm_ac >= IEEE80211_NUM_ACS) |
2482 | non_acm_ac = IEEE80211_AC_BK; | |
b3e2130b JB |
2483 | if (drv_conf_tx(local, &sdata->deflink, ac, |
2484 | &sdata->deflink.tx_conf[non_acm_ac])) | |
2485 | link_err(&sdata->deflink, | |
2486 | "failed to set TX queue parameters for queue %d\n", | |
2487 | ac); | |
02219b3a JB |
2488 | tx_tspec->action = TX_TSPEC_ACTION_NONE; |
2489 | ret = true; | |
2490 | schedule_delayed_work(&ifmgd->tx_tspec_wk, | |
2491 | tx_tspec->time_slice_start + HZ - now + 1); | |
2492 | break; | |
2493 | case TX_TSPEC_ACTION_NONE: | |
2494 | /* nothing now */ | |
2495 | break; | |
2496 | } | |
2497 | } | |
2498 | ||
2499 | return ret; | |
2500 | } | |
2501 | ||
2502 | void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata) | |
2503 | { | |
2504 | if (__ieee80211_sta_handle_tspec_ac_params(sdata)) | |
d8675a63 JB |
2505 | ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
2506 | BSS_CHANGED_QOS); | |
02219b3a JB |
2507 | } |
2508 | ||
2509 | static void ieee80211_sta_handle_tspec_ac_params_wk(struct work_struct *work) | |
2510 | { | |
2511 | struct ieee80211_sub_if_data *sdata; | |
2512 | ||
2513 | sdata = container_of(work, struct ieee80211_sub_if_data, | |
2514 | u.mgd.tx_tspec_wk.work); | |
2515 | ieee80211_sta_handle_tspec_ac_params(sdata); | |
2516 | } | |
2517 | ||
7e415d0c JB |
2518 | void ieee80211_mgd_set_link_qos_params(struct ieee80211_link_data *link) |
2519 | { | |
2520 | struct ieee80211_sub_if_data *sdata = link->sdata; | |
2521 | struct ieee80211_local *local = sdata->local; | |
2522 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
2523 | struct ieee80211_tx_queue_params *params = link->tx_conf; | |
2524 | u8 ac; | |
2525 | ||
2526 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { | |
2527 | mlme_dbg(sdata, | |
2528 | "WMM AC=%d acm=%d aifs=%d cWmin=%d cWmax=%d txop=%d uapsd=%d, downgraded=%d\n", | |
2529 | ac, params[ac].acm, | |
2530 | params[ac].aifs, params[ac].cw_min, params[ac].cw_max, | |
2531 | params[ac].txop, params[ac].uapsd, | |
2532 | ifmgd->tx_tspec[ac].downgraded); | |
2533 | if (!ifmgd->tx_tspec[ac].downgraded && | |
2534 | drv_conf_tx(local, link, ac, ¶ms[ac])) | |
2535 | link_err(link, | |
2536 | "failed to set TX queue parameters for AC %d\n", | |
2537 | ac); | |
2538 | } | |
2539 | } | |
2540 | ||
60f8b39c | 2541 | /* MLME */ |
41cbb0f5 LC |
2542 | static bool |
2543 | ieee80211_sta_wmm_params(struct ieee80211_local *local, | |
b3e2130b | 2544 | struct ieee80211_link_data *link, |
41cbb0f5 LC |
2545 | const u8 *wmm_param, size_t wmm_param_len, |
2546 | const struct ieee80211_mu_edca_param_set *mu_edca) | |
f0706e82 | 2547 | { |
b3e2130b | 2548 | struct ieee80211_sub_if_data *sdata = link->sdata; |
2ed77ea6 | 2549 | struct ieee80211_tx_queue_params params[IEEE80211_NUM_ACS]; |
4ced3f74 | 2550 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
f0706e82 | 2551 | size_t left; |
2e249fc3 | 2552 | int count, mu_edca_count, ac; |
4a3cb702 JB |
2553 | const u8 *pos; |
2554 | u8 uapsd_queues = 0; | |
f0706e82 | 2555 | |
e1b3ec1a | 2556 | if (!local->ops->conf_tx) |
7d25745d | 2557 | return false; |
e1b3ec1a | 2558 | |
32c5057b | 2559 | if (local->hw.queues < IEEE80211_NUM_ACS) |
7d25745d | 2560 | return false; |
3434fbd3 JB |
2561 | |
2562 | if (!wmm_param) | |
7d25745d | 2563 | return false; |
3434fbd3 | 2564 | |
f0706e82 | 2565 | if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1) |
7d25745d | 2566 | return false; |
ab13315a KV |
2567 | |
2568 | if (ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED) | |
dc41e4d4 | 2569 | uapsd_queues = ifmgd->uapsd_queues; |
ab13315a | 2570 | |
f0706e82 | 2571 | count = wmm_param[6] & 0x0f; |
2e249fc3 ST |
2572 | /* -1 is the initial value of ifmgd->mu_edca_last_param_set. |
2573 | * if mu_edca was preset before and now it disappeared tell | |
2574 | * the driver about it. | |
2575 | */ | |
2576 | mu_edca_count = mu_edca ? mu_edca->mu_qos_info & 0x0f : -1; | |
b3e2130b JB |
2577 | if (count == link->u.mgd.wmm_last_param_set && |
2578 | mu_edca_count == link->u.mgd.mu_edca_last_param_set) | |
7d25745d | 2579 | return false; |
b3e2130b JB |
2580 | link->u.mgd.wmm_last_param_set = count; |
2581 | link->u.mgd.mu_edca_last_param_set = mu_edca_count; | |
f0706e82 JB |
2582 | |
2583 | pos = wmm_param + 8; | |
2584 | left = wmm_param_len - 8; | |
2585 | ||
2586 | memset(¶ms, 0, sizeof(params)); | |
2587 | ||
00e96dec | 2588 | sdata->wmm_acm = 0; |
f0706e82 JB |
2589 | for (; left >= 4; left -= 4, pos += 4) { |
2590 | int aci = (pos[0] >> 5) & 0x03; | |
2591 | int acm = (pos[0] >> 4) & 0x01; | |
ab13315a | 2592 | bool uapsd = false; |
f0706e82 JB |
2593 | |
2594 | switch (aci) { | |
0eeb59fe | 2595 | case 1: /* AC_BK */ |
2ed77ea6 | 2596 | ac = IEEE80211_AC_BK; |
988c0f72 | 2597 | if (acm) |
00e96dec | 2598 | sdata->wmm_acm |= BIT(1) | BIT(2); /* BK/- */ |
ab13315a KV |
2599 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK) |
2600 | uapsd = true; | |
41cbb0f5 LC |
2601 | params[ac].mu_edca = !!mu_edca; |
2602 | if (mu_edca) | |
2603 | params[ac].mu_edca_param_rec = mu_edca->ac_bk; | |
f0706e82 | 2604 | break; |
0eeb59fe | 2605 | case 2: /* AC_VI */ |
2ed77ea6 | 2606 | ac = IEEE80211_AC_VI; |
988c0f72 | 2607 | if (acm) |
00e96dec | 2608 | sdata->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */ |
ab13315a KV |
2609 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI) |
2610 | uapsd = true; | |
41cbb0f5 LC |
2611 | params[ac].mu_edca = !!mu_edca; |
2612 | if (mu_edca) | |
2613 | params[ac].mu_edca_param_rec = mu_edca->ac_vi; | |
f0706e82 | 2614 | break; |
0eeb59fe | 2615 | case 3: /* AC_VO */ |
2ed77ea6 | 2616 | ac = IEEE80211_AC_VO; |
988c0f72 | 2617 | if (acm) |
00e96dec | 2618 | sdata->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */ |
ab13315a KV |
2619 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO) |
2620 | uapsd = true; | |
41cbb0f5 LC |
2621 | params[ac].mu_edca = !!mu_edca; |
2622 | if (mu_edca) | |
2623 | params[ac].mu_edca_param_rec = mu_edca->ac_vo; | |
f0706e82 | 2624 | break; |
0eeb59fe | 2625 | case 0: /* AC_BE */ |
f0706e82 | 2626 | default: |
2ed77ea6 | 2627 | ac = IEEE80211_AC_BE; |
988c0f72 | 2628 | if (acm) |
00e96dec | 2629 | sdata->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */ |
ab13315a KV |
2630 | if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE) |
2631 | uapsd = true; | |
41cbb0f5 LC |
2632 | params[ac].mu_edca = !!mu_edca; |
2633 | if (mu_edca) | |
2634 | params[ac].mu_edca_param_rec = mu_edca->ac_be; | |
f0706e82 JB |
2635 | break; |
2636 | } | |
2637 | ||
2ed77ea6 | 2638 | params[ac].aifs = pos[0] & 0x0f; |
730a7550 | 2639 | |
2ed77ea6 | 2640 | if (params[ac].aifs < 2) { |
b580a372 JB |
2641 | link_info(link, |
2642 | "AP has invalid WMM params (AIFSN=%d for ACI %d), will use 2\n", | |
2643 | params[ac].aifs, aci); | |
2ed77ea6 | 2644 | params[ac].aifs = 2; |
730a7550 | 2645 | } |
2ed77ea6 JB |
2646 | params[ac].cw_max = ecw2cw((pos[1] & 0xf0) >> 4); |
2647 | params[ac].cw_min = ecw2cw(pos[1] & 0x0f); | |
2648 | params[ac].txop = get_unaligned_le16(pos + 2); | |
2649 | params[ac].acm = acm; | |
2650 | params[ac].uapsd = uapsd; | |
ab13315a | 2651 | |
911a2648 | 2652 | if (params[ac].cw_min == 0 || |
c470bdc1 | 2653 | params[ac].cw_min > params[ac].cw_max) { |
b580a372 JB |
2654 | link_info(link, |
2655 | "AP has invalid WMM params (CWmin/max=%d/%d for ACI %d), using defaults\n", | |
2656 | params[ac].cw_min, params[ac].cw_max, aci); | |
2ed77ea6 JB |
2657 | return false; |
2658 | } | |
e552af05 | 2659 | ieee80211_regulatory_limit_wmm_params(sdata, ¶ms[ac], ac); |
2ed77ea6 JB |
2660 | } |
2661 | ||
05aaa5c9 BN |
2662 | /* WMM specification requires all 4 ACIs. */ |
2663 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { | |
2664 | if (params[ac].cw_min == 0) { | |
b580a372 JB |
2665 | link_info(link, |
2666 | "AP has invalid WMM params (missing AC %d), using defaults\n", | |
2667 | ac); | |
05aaa5c9 BN |
2668 | return false; |
2669 | } | |
2670 | } | |
2671 | ||
7e415d0c | 2672 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) |
b3e2130b | 2673 | link->tx_conf[ac] = params[ac]; |
7e415d0c JB |
2674 | |
2675 | ieee80211_mgd_set_link_qos_params(link); | |
e1b3ec1a SG |
2676 | |
2677 | /* enable WMM or activate new settings */ | |
b3e2130b | 2678 | link->conf->qos = true; |
7d25745d | 2679 | return true; |
f0706e82 JB |
2680 | } |
2681 | ||
925e64c3 SG |
2682 | static void __ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) |
2683 | { | |
2684 | lockdep_assert_held(&sdata->local->mtx); | |
2685 | ||
392b9ffb | 2686 | sdata->u.mgd.flags &= ~IEEE80211_STA_CONNECTION_POLL; |
925e64c3 SG |
2687 | ieee80211_run_deferred_scan(sdata->local); |
2688 | } | |
2689 | ||
2690 | static void ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata) | |
2691 | { | |
2692 | mutex_lock(&sdata->local->mtx); | |
2693 | __ieee80211_stop_poll(sdata); | |
2694 | mutex_unlock(&sdata->local->mtx); | |
2695 | } | |
2696 | ||
15ddba5f | 2697 | static u64 ieee80211_handle_bss_capability(struct ieee80211_link_data *link, |
7a5158ef | 2698 | u16 capab, bool erp_valid, u8 erp) |
5628221c | 2699 | { |
1dd0f31c | 2700 | struct ieee80211_bss_conf *bss_conf = link->conf; |
21a8e9dd | 2701 | struct ieee80211_supported_band *sband; |
15ddba5f | 2702 | u64 changed = 0; |
7a5158ef JB |
2703 | bool use_protection; |
2704 | bool use_short_preamble; | |
2705 | bool use_short_slot; | |
2706 | ||
1dd0f31c | 2707 | sband = ieee80211_get_link_sband(link); |
21a8e9dd MSS |
2708 | if (!sband) |
2709 | return changed; | |
2710 | ||
7a5158ef JB |
2711 | if (erp_valid) { |
2712 | use_protection = (erp & WLAN_ERP_USE_PROTECTION) != 0; | |
2713 | use_short_preamble = (erp & WLAN_ERP_BARKER_PREAMBLE) == 0; | |
2714 | } else { | |
2715 | use_protection = false; | |
2716 | use_short_preamble = !!(capab & WLAN_CAPABILITY_SHORT_PREAMBLE); | |
2717 | } | |
2718 | ||
2719 | use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME); | |
07c12d61 TM |
2720 | if (sband->band == NL80211_BAND_5GHZ || |
2721 | sband->band == NL80211_BAND_6GHZ) | |
43d35343 | 2722 | use_short_slot = true; |
5628221c | 2723 | |
471b3efd | 2724 | if (use_protection != bss_conf->use_cts_prot) { |
471b3efd JB |
2725 | bss_conf->use_cts_prot = use_protection; |
2726 | changed |= BSS_CHANGED_ERP_CTS_PROT; | |
5628221c | 2727 | } |
7e9ed188 | 2728 | |
d43c7b37 | 2729 | if (use_short_preamble != bss_conf->use_short_preamble) { |
d43c7b37 | 2730 | bss_conf->use_short_preamble = use_short_preamble; |
471b3efd | 2731 | changed |= BSS_CHANGED_ERP_PREAMBLE; |
7e9ed188 | 2732 | } |
d9430a32 | 2733 | |
7a5158ef | 2734 | if (use_short_slot != bss_conf->use_short_slot) { |
7a5158ef JB |
2735 | bss_conf->use_short_slot = use_short_slot; |
2736 | changed |= BSS_CHANGED_ERP_SLOT; | |
50c4afb9 JL |
2737 | } |
2738 | ||
2739 | return changed; | |
2740 | } | |
2741 | ||
e820373a | 2742 | static u64 ieee80211_link_set_associated(struct ieee80211_link_data *link, |
5d3a341c | 2743 | struct cfg80211_bss *cbss) |
f0706e82 | 2744 | { |
5d3a341c | 2745 | struct ieee80211_sub_if_data *sdata = link->sdata; |
5bd5666d | 2746 | struct ieee80211_bss_conf *bss_conf = link->conf; |
5d3a341c | 2747 | struct ieee80211_bss *bss = (void *)cbss->priv; |
15ddba5f | 2748 | u64 changed = BSS_CHANGED_QOS; |
d6f2da5b | 2749 | |
81151ce4 | 2750 | /* not really used in MLO */ |
5d3a341c JB |
2751 | sdata->u.mgd.beacon_timeout = |
2752 | usecs_to_jiffies(ieee80211_tu_to_usec(beacon_loss_count * | |
2753 | bss_conf->beacon_int)); | |
21c0cbe7 | 2754 | |
5d3a341c JB |
2755 | changed |= ieee80211_handle_bss_capability(link, |
2756 | bss_conf->assoc_capability, | |
2757 | bss->has_erp_value, | |
2758 | bss->erp_value); | |
2759 | ||
2760 | ieee80211_check_rate_mask(link); | |
7ccc8bd7 | 2761 | |
5bd5666d JB |
2762 | link->u.mgd.bss = cbss; |
2763 | memcpy(link->u.mgd.bssid, cbss->bssid, ETH_ALEN); | |
e8e4f528 | 2764 | |
b115b972 JD |
2765 | if (sdata->vif.p2p || |
2766 | sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) { | |
9caf0364 | 2767 | const struct cfg80211_bss_ies *ies; |
488dd7b5 | 2768 | |
9caf0364 JB |
2769 | rcu_read_lock(); |
2770 | ies = rcu_dereference(cbss->ies); | |
2771 | if (ies) { | |
9caf0364 JB |
2772 | int ret; |
2773 | ||
2774 | ret = cfg80211_get_p2p_attr( | |
2775 | ies->data, ies->len, | |
2776 | IEEE80211_P2P_ATTR_ABSENCE_NOTICE, | |
67baf663 JD |
2777 | (u8 *) &bss_conf->p2p_noa_attr, |
2778 | sizeof(bss_conf->p2p_noa_attr)); | |
9caf0364 | 2779 | if (ret >= 2) { |
5bd5666d | 2780 | link->u.mgd.p2p_noa_index = |
67baf663 | 2781 | bss_conf->p2p_noa_attr.index; |
5d3a341c | 2782 | changed |= BSS_CHANGED_P2P_PS; |
9caf0364 | 2783 | } |
488dd7b5 | 2784 | } |
9caf0364 | 2785 | rcu_read_unlock(); |
488dd7b5 JB |
2786 | } |
2787 | ||
5bd5666d | 2788 | if (link->u.mgd.have_beacon) { |
817cee76 | 2789 | bss_conf->beacon_rate = bss->beacon_rate; |
5d3a341c | 2790 | changed |= BSS_CHANGED_BEACON_INFO; |
826262c3 | 2791 | } else { |
817cee76 | 2792 | bss_conf->beacon_rate = NULL; |
826262c3 | 2793 | } |
e5b900d2 | 2794 | |
a97c13c3 | 2795 | /* Tell the driver to monitor connection quality (if supported) */ |
ea086359 | 2796 | if (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI && |
68542962 | 2797 | bss_conf->cqm_rssi_thold) |
5d3a341c JB |
2798 | changed |= BSS_CHANGED_CQM; |
2799 | ||
2800 | return changed; | |
2801 | } | |
2802 | ||
2803 | static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata, | |
81151ce4 JB |
2804 | struct ieee80211_mgd_assoc_data *assoc_data, |
2805 | u64 changed[IEEE80211_MLD_MAX_NUM_LINKS]) | |
5d3a341c JB |
2806 | { |
2807 | struct ieee80211_local *local = sdata->local; | |
5d3a341c | 2808 | struct ieee80211_vif_cfg *vif_cfg = &sdata->vif.cfg; |
81151ce4 JB |
2809 | u64 vif_changed = BSS_CHANGED_ASSOC; |
2810 | unsigned int link_id; | |
5d3a341c JB |
2811 | |
2812 | sdata->u.mgd.associated = true; | |
81151ce4 JB |
2813 | |
2814 | for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { | |
2815 | struct cfg80211_bss *cbss = assoc_data->link[link_id].bss; | |
2816 | struct ieee80211_link_data *link; | |
2817 | ||
c2d052a3 IP |
2818 | if (!cbss || |
2819 | assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS) | |
81151ce4 JB |
2820 | continue; |
2821 | ||
6d543b34 IP |
2822 | if (ieee80211_vif_is_mld(&sdata->vif) && |
2823 | !(ieee80211_vif_usable_links(&sdata->vif) & BIT(link_id))) | |
2824 | continue; | |
2825 | ||
81151ce4 JB |
2826 | link = sdata_dereference(sdata->link[link_id], sdata); |
2827 | if (WARN_ON(!link)) | |
2828 | return; | |
2829 | ||
2830 | changed[link_id] |= ieee80211_link_set_associated(link, cbss); | |
2831 | } | |
2832 | ||
5d3a341c JB |
2833 | /* just to be sure */ |
2834 | ieee80211_stop_poll(sdata); | |
2835 | ||
2836 | ieee80211_led_assoc(local, 1); | |
2837 | ||
2838 | vif_cfg->assoc = 1; | |
a97c13c3 | 2839 | |
68542962 | 2840 | /* Enable ARP filtering */ |
f276e20b | 2841 | if (vif_cfg->arp_addr_cnt) |
81151ce4 JB |
2842 | vif_changed |= BSS_CHANGED_ARP_FILTER; |
2843 | ||
f1871abd | 2844 | if (ieee80211_vif_is_mld(&sdata->vif)) { |
81151ce4 JB |
2845 | for (link_id = 0; |
2846 | link_id < IEEE80211_MLD_MAX_NUM_LINKS; | |
2847 | link_id++) { | |
2848 | struct ieee80211_link_data *link; | |
2849 | struct cfg80211_bss *cbss = assoc_data->link[link_id].bss; | |
68542962 | 2850 | |
c2d052a3 | 2851 | if (!cbss || |
6d543b34 IP |
2852 | !(BIT(link_id) & |
2853 | ieee80211_vif_usable_links(&sdata->vif)) || | |
c2d052a3 | 2854 | assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS) |
81151ce4 JB |
2855 | continue; |
2856 | ||
2857 | link = sdata_dereference(sdata->link[link_id], sdata); | |
2858 | if (WARN_ON(!link)) | |
2859 | return; | |
2860 | ||
2861 | ieee80211_link_info_change_notify(sdata, link, | |
2862 | changed[link_id]); | |
2863 | ||
2864 | ieee80211_recalc_smps(sdata, link); | |
2865 | } | |
2866 | ||
2867 | ieee80211_vif_cfg_change_notify(sdata, vif_changed); | |
2868 | } else { | |
2869 | ieee80211_bss_info_change_notify(sdata, | |
2870 | vif_changed | changed[0]); | |
2871 | } | |
f0706e82 | 2872 | |
056508dc | 2873 | mutex_lock(&local->iflist_mtx); |
4a733ef1 | 2874 | ieee80211_recalc_ps(local); |
056508dc | 2875 | mutex_unlock(&local->iflist_mtx); |
e0cb686f | 2876 | |
81151ce4 | 2877 | /* leave this here to not change ordering in non-MLO cases */ |
f1871abd | 2878 | if (!ieee80211_vif_is_mld(&sdata->vif)) |
81151ce4 | 2879 | ieee80211_recalc_smps(sdata, &sdata->deflink); |
ab095877 EP |
2880 | ieee80211_recalc_ps_vif(sdata); |
2881 | ||
9ac19a90 | 2882 | netif_carrier_on(sdata->dev); |
f0706e82 JB |
2883 | } |
2884 | ||
e69e95db | 2885 | static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, |
37ad3888 JB |
2886 | u16 stype, u16 reason, bool tx, |
2887 | u8 *frame_buf) | |
aa458d17 | 2888 | { |
46900298 | 2889 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
aa458d17 | 2890 | struct ieee80211_local *local = sdata->local; |
81151ce4 | 2891 | unsigned int link_id; |
15ddba5f | 2892 | u64 changed = 0; |
15fae341 JB |
2893 | struct ieee80211_prep_tx_info info = { |
2894 | .subtype = stype, | |
2895 | }; | |
aa458d17 | 2896 | |
8d61ffa5 | 2897 | sdata_assert_lock(sdata); |
77fdaa12 | 2898 | |
37ad3888 JB |
2899 | if (WARN_ON_ONCE(tx && !frame_buf)) |
2900 | return; | |
2901 | ||
b291ba11 JB |
2902 | if (WARN_ON(!ifmgd->associated)) |
2903 | return; | |
2904 | ||
79543d8e DS |
2905 | ieee80211_stop_poll(sdata); |
2906 | ||
5dfad108 | 2907 | ifmgd->associated = false; |
39d80599 JB |
2908 | |
2909 | /* other links will be destroyed */ | |
2910 | sdata->deflink.u.mgd.bss = NULL; | |
2911 | ||
aa458d17 TW |
2912 | netif_carrier_off(sdata->dev); |
2913 | ||
88bc40e8 EP |
2914 | /* |
2915 | * if we want to get out of ps before disassoc (why?) we have | |
2916 | * to do it before sending disassoc, as otherwise the null-packet | |
2917 | * won't be valid. | |
2918 | */ | |
2919 | if (local->hw.conf.flags & IEEE80211_CONF_PS) { | |
2920 | local->hw.conf.flags &= ~IEEE80211_CONF_PS; | |
2921 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); | |
2922 | } | |
2923 | local->ps_sdata = NULL; | |
2924 | ||
ab095877 EP |
2925 | /* disable per-vif ps */ |
2926 | ieee80211_recalc_ps_vif(sdata); | |
2927 | ||
14f2ae83 EG |
2928 | /* make sure ongoing transmission finishes */ |
2929 | synchronize_net(); | |
2930 | ||
3b24f4c6 EG |
2931 | /* |
2932 | * drop any frame before deauth/disassoc, this can be data or | |
2933 | * management frame. Since we are disconnecting, we should not | |
2934 | * insist sending these frames which can take time and delay | |
2935 | * the disconnection and possible the roaming. | |
2936 | */ | |
f823981e | 2937 | if (tx) |
3b24f4c6 | 2938 | ieee80211_flush_queues(local, sdata, true); |
f823981e | 2939 | |
37ad3888 | 2940 | /* deauthenticate/disassociate now */ |
94ba9271 | 2941 | if (tx || frame_buf) { |
94ba9271 IP |
2942 | /* |
2943 | * In multi channel scenarios guarantee that the virtual | |
2944 | * interface is granted immediate airtime to transmit the | |
2945 | * deauthentication frame by calling mgd_prepare_tx, if the | |
2946 | * driver requested so. | |
2947 | */ | |
2948 | if (ieee80211_hw_check(&local->hw, DEAUTH_NEED_MGD_TX_PREP) && | |
39d80599 | 2949 | !sdata->deflink.u.mgd.have_beacon) { |
15fae341 JB |
2950 | drv_mgd_prepare_tx(sdata->local, sdata, &info); |
2951 | } | |
94ba9271 | 2952 | |
81151ce4 JB |
2953 | ieee80211_send_deauth_disassoc(sdata, sdata->vif.cfg.ap_addr, |
2954 | sdata->vif.cfg.ap_addr, stype, | |
2955 | reason, tx, frame_buf); | |
94ba9271 | 2956 | } |
37ad3888 | 2957 | |
3b24f4c6 | 2958 | /* flush out frame - make sure the deauth was actually sent */ |
37ad3888 | 2959 | if (tx) |
3b24f4c6 | 2960 | ieee80211_flush_queues(local, sdata, false); |
37ad3888 | 2961 | |
15fae341 JB |
2962 | drv_mgd_complete_tx(sdata->local, sdata, &info); |
2963 | ||
81151ce4 JB |
2964 | /* clear AP addr only after building the needed mgmt frames */ |
2965 | eth_zero_addr(sdata->deflink.u.mgd.bssid); | |
b65567b0 | 2966 | eth_zero_addr(sdata->vif.cfg.ap_addr); |
81151ce4 | 2967 | |
f276e20b | 2968 | sdata->vif.cfg.ssid_len = 0; |
b0140fda | 2969 | |
37ad3888 | 2970 | /* remove AP and TDLS peers */ |
d34ba216 | 2971 | sta_info_flush(sdata); |
37ad3888 JB |
2972 | |
2973 | /* finally reset all BSS / config parameters */ | |
f1871abd | 2974 | if (!ieee80211_vif_is_mld(&sdata->vif)) |
a94c90d3 | 2975 | changed |= ieee80211_reset_erp_info(sdata); |
f5e5bf25 | 2976 | |
f5e5bf25 | 2977 | ieee80211_led_assoc(local, 0); |
ae5eb026 | 2978 | changed |= BSS_CHANGED_ASSOC; |
f276e20b | 2979 | sdata->vif.cfg.assoc = false; |
f5e5bf25 | 2980 | |
39d80599 JB |
2981 | sdata->deflink.u.mgd.p2p_noa_index = -1; |
2982 | memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, | |
2983 | sizeof(sdata->vif.bss_conf.p2p_noa_attr)); | |
488dd7b5 | 2984 | |
dd5ecfea | 2985 | /* on the next assoc, re-program HT/VHT parameters */ |
ef96a842 BG |
2986 | memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa)); |
2987 | memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask)); | |
dd5ecfea JB |
2988 | memset(&ifmgd->vht_capa, 0, sizeof(ifmgd->vht_capa)); |
2989 | memset(&ifmgd->vht_capa_mask, 0, sizeof(ifmgd->vht_capa_mask)); | |
23a1f8d4 | 2990 | |
39d80599 JB |
2991 | /* |
2992 | * reset MU-MIMO ownership and group data in default link, | |
2993 | * if used, other links are destroyed | |
2994 | */ | |
2995 | memset(sdata->vif.bss_conf.mu_group.membership, 0, | |
2996 | sizeof(sdata->vif.bss_conf.mu_group.membership)); | |
2997 | memset(sdata->vif.bss_conf.mu_group.position, 0, | |
2998 | sizeof(sdata->vif.bss_conf.mu_group.position)); | |
f1871abd | 2999 | if (!ieee80211_vif_is_mld(&sdata->vif)) |
39d80599 JB |
3000 | changed |= BSS_CHANGED_MU_GROUPS; |
3001 | sdata->vif.bss_conf.mu_mimo_owner = false; | |
413ad50a | 3002 | |
39d80599 | 3003 | sdata->deflink.ap_power_level = IEEE80211_UNSET_POWER_LEVEL; |
a8302de9 | 3004 | |
520eb820 KV |
3005 | del_timer_sync(&local->dynamic_ps_timer); |
3006 | cancel_work_sync(&local->dynamic_ps_enable_work); | |
3007 | ||
68542962 | 3008 | /* Disable ARP filtering */ |
f276e20b | 3009 | if (sdata->vif.cfg.arp_addr_cnt) |
68542962 | 3010 | changed |= BSS_CHANGED_ARP_FILTER; |
68542962 | 3011 | |
39d80599 | 3012 | sdata->vif.bss_conf.qos = false; |
f1871abd | 3013 | if (!ieee80211_vif_is_mld(&sdata->vif)) { |
81151ce4 JB |
3014 | changed |= BSS_CHANGED_QOS; |
3015 | /* The BSSID (not really interesting) and HT changed */ | |
3016 | changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT; | |
a94c90d3 JB |
3017 | ieee80211_bss_info_change_notify(sdata, changed); |
3018 | } else { | |
3019 | ieee80211_vif_cfg_change_notify(sdata, changed); | |
81151ce4 | 3020 | } |
3abead59 | 3021 | |
3abead59 | 3022 | /* disassociated - set to defaults now */ |
b3e2130b | 3023 | ieee80211_set_wmm_default(&sdata->deflink, false, false); |
3abead59 | 3024 | |
b9dcf712 JB |
3025 | del_timer_sync(&sdata->u.mgd.conn_mon_timer); |
3026 | del_timer_sync(&sdata->u.mgd.bcn_mon_timer); | |
3027 | del_timer_sync(&sdata->u.mgd.timer); | |
2d9957cc | 3028 | |
39d80599 JB |
3029 | sdata->vif.bss_conf.dtim_period = 0; |
3030 | sdata->vif.bss_conf.beacon_rate = NULL; | |
817cee76 | 3031 | |
39d80599 JB |
3032 | sdata->deflink.u.mgd.have_beacon = false; |
3033 | sdata->deflink.u.mgd.tracking_signal_avg = false; | |
3034 | sdata->deflink.u.mgd.disable_wmm_tracking = false; | |
826262c3 | 3035 | |
028e8da0 | 3036 | ifmgd->flags = 0; |
39d80599 | 3037 | sdata->deflink.u.mgd.conn_flags = 0; |
34a3740d | 3038 | mutex_lock(&local->mtx); |
81151ce4 JB |
3039 | |
3040 | for (link_id = 0; link_id < ARRAY_SIZE(sdata->link); link_id++) { | |
3041 | struct ieee80211_link_data *link; | |
3042 | ||
3043 | link = sdata_dereference(sdata->link[link_id], sdata); | |
3044 | if (!link) | |
3045 | continue; | |
3046 | ieee80211_link_release_channel(link); | |
3047 | } | |
59af6928 | 3048 | |
39d80599 JB |
3049 | sdata->vif.bss_conf.csa_active = false; |
3050 | sdata->deflink.u.mgd.csa_waiting_bcn = false; | |
3051 | sdata->deflink.u.mgd.csa_ignored_same_chan = false; | |
3052 | if (sdata->deflink.csa_block_tx) { | |
a46992b4 LC |
3053 | ieee80211_wake_vif_queues(local, sdata, |
3054 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
39d80599 | 3055 | sdata->deflink.csa_block_tx = false; |
a46992b4 | 3056 | } |
34a3740d | 3057 | mutex_unlock(&local->mtx); |
2475b1cc | 3058 | |
02219b3a JB |
3059 | /* existing TX TSPEC sessions no longer exist */ |
3060 | memset(ifmgd->tx_tspec, 0, sizeof(ifmgd->tx_tspec)); | |
3061 | cancel_delayed_work_sync(&ifmgd->tx_tspec_wk); | |
3062 | ||
39d80599 JB |
3063 | sdata->vif.bss_conf.pwr_reduction = 0; |
3064 | sdata->vif.bss_conf.tx_pwr_env_num = 0; | |
3065 | memset(sdata->vif.bss_conf.tx_pwr_env, 0, | |
3066 | sizeof(sdata->vif.bss_conf.tx_pwr_env)); | |
81151ce4 | 3067 | |
6d543b34 | 3068 | ieee80211_vif_set_links(sdata, 0, 0); |
aa458d17 | 3069 | } |
f0706e82 | 3070 | |
4e5ff376 FF |
3071 | static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata) |
3072 | { | |
3073 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
133d40f9 | 3074 | struct ieee80211_local *local = sdata->local; |
4e5ff376 | 3075 | |
133d40f9 | 3076 | mutex_lock(&local->mtx); |
392b9ffb SG |
3077 | if (!(ifmgd->flags & IEEE80211_STA_CONNECTION_POLL)) |
3078 | goto out; | |
4e5ff376 | 3079 | |
925e64c3 | 3080 | __ieee80211_stop_poll(sdata); |
133d40f9 SG |
3081 | |
3082 | mutex_lock(&local->iflist_mtx); | |
4a733ef1 | 3083 | ieee80211_recalc_ps(local); |
133d40f9 | 3084 | mutex_unlock(&local->iflist_mtx); |
4e5ff376 | 3085 | |
30686bf7 | 3086 | if (ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) |
133d40f9 | 3087 | goto out; |
4e5ff376 FF |
3088 | |
3089 | /* | |
3090 | * We've received a probe response, but are not sure whether | |
3091 | * we have or will be receiving any beacons or data, so let's | |
3092 | * schedule the timers again, just in case. | |
3093 | */ | |
3094 | ieee80211_sta_reset_beacon_monitor(sdata); | |
3095 | ||
3096 | mod_timer(&ifmgd->conn_mon_timer, | |
3097 | round_jiffies_up(jiffies + | |
3098 | IEEE80211_CONNECTION_IDLE_TIME)); | |
133d40f9 | 3099 | out: |
133d40f9 | 3100 | mutex_unlock(&local->mtx); |
4e5ff376 FF |
3101 | } |
3102 | ||
02219b3a JB |
3103 | static void ieee80211_sta_tx_wmm_ac_notify(struct ieee80211_sub_if_data *sdata, |
3104 | struct ieee80211_hdr *hdr, | |
3105 | u16 tx_time) | |
3106 | { | |
3107 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
d5e568c3 JB |
3108 | u16 tid; |
3109 | int ac; | |
3110 | struct ieee80211_sta_tx_tspec *tx_tspec; | |
02219b3a JB |
3111 | unsigned long now = jiffies; |
3112 | ||
d5e568c3 JB |
3113 | if (!ieee80211_is_data_qos(hdr->frame_control)) |
3114 | return; | |
3115 | ||
3116 | tid = ieee80211_get_tid(hdr); | |
3117 | ac = ieee80211_ac_from_tid(tid); | |
3118 | tx_tspec = &ifmgd->tx_tspec[ac]; | |
3119 | ||
02219b3a JB |
3120 | if (likely(!tx_tspec->admitted_time)) |
3121 | return; | |
3122 | ||
3123 | if (time_after(now, tx_tspec->time_slice_start + HZ)) { | |
3124 | tx_tspec->consumed_tx_time = 0; | |
3125 | tx_tspec->time_slice_start = now; | |
3126 | ||
3127 | if (tx_tspec->downgraded) { | |
3128 | tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE; | |
3129 | schedule_delayed_work(&ifmgd->tx_tspec_wk, 0); | |
3130 | } | |
3131 | } | |
3132 | ||
3133 | if (tx_tspec->downgraded) | |
3134 | return; | |
3135 | ||
3136 | tx_tspec->consumed_tx_time += tx_time; | |
3137 | ||
3138 | if (tx_tspec->consumed_tx_time >= tx_tspec->admitted_time) { | |
3139 | tx_tspec->downgraded = true; | |
3140 | tx_tspec->action = TX_TSPEC_ACTION_DOWNGRADE; | |
3141 | schedule_delayed_work(&ifmgd->tx_tspec_wk, 0); | |
3142 | } | |
3143 | } | |
3144 | ||
4e5ff376 | 3145 | void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata, |
02219b3a | 3146 | struct ieee80211_hdr *hdr, bool ack, u16 tx_time) |
4e5ff376 | 3147 | { |
02219b3a JB |
3148 | ieee80211_sta_tx_wmm_ac_notify(sdata, hdr, tx_time); |
3149 | ||
9abf4e49 FF |
3150 | if (!ieee80211_is_any_nullfunc(hdr->frame_control) || |
3151 | !sdata->u.mgd.probe_send_count) | |
cab1c7fd | 3152 | return; |
cab1c7fd | 3153 | |
e3f25908 FF |
3154 | if (ack) |
3155 | sdata->u.mgd.probe_send_count = 0; | |
3156 | else | |
9abf4e49 | 3157 | sdata->u.mgd.nullfunc_failed = true; |
16114496 | 3158 | wiphy_work_queue(sdata->local->hw.wiphy, &sdata->work); |
4e5ff376 FF |
3159 | } |
3160 | ||
45ad6834 JB |
3161 | static void ieee80211_mlme_send_probe_req(struct ieee80211_sub_if_data *sdata, |
3162 | const u8 *src, const u8 *dst, | |
3163 | const u8 *ssid, size_t ssid_len, | |
3164 | struct ieee80211_channel *channel) | |
3165 | { | |
3166 | struct sk_buff *skb; | |
3167 | ||
3168 | skb = ieee80211_build_probe_req(sdata, src, dst, (u32)-1, channel, | |
3169 | ssid, ssid_len, NULL, 0, | |
3170 | IEEE80211_PROBE_FLAG_DIRECTED); | |
3171 | if (skb) | |
3172 | ieee80211_tx_skb(sdata, skb); | |
3173 | } | |
3174 | ||
a43abf29 ML |
3175 | static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata) |
3176 | { | |
3177 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
b65567b0 | 3178 | u8 *dst = sdata->vif.cfg.ap_addr; |
180205bd | 3179 | u8 unicast_limit = max(1, max_probe_tries - 3); |
49ddf8e6 | 3180 | struct sta_info *sta; |
f01a067d | 3181 | |
f1871abd | 3182 | if (WARN_ON(ieee80211_vif_is_mld(&sdata->vif))) |
5bd5666d JB |
3183 | return; |
3184 | ||
f01a067d LR |
3185 | /* |
3186 | * Try sending broadcast probe requests for the last three | |
3187 | * probe requests after the first ones failed since some | |
3188 | * buggy APs only support broadcast probe requests. | |
3189 | */ | |
3190 | if (ifmgd->probe_send_count >= unicast_limit) | |
3191 | dst = NULL; | |
a43abf29 | 3192 | |
4e5ff376 FF |
3193 | /* |
3194 | * When the hardware reports an accurate Tx ACK status, it's | |
3195 | * better to send a nullfunc frame instead of a probe request, | |
3196 | * as it will kick us off the AP quickly if we aren't associated | |
3197 | * anymore. The timeout will be reset if the frame is ACKed by | |
3198 | * the AP. | |
3199 | */ | |
992e68bf SD |
3200 | ifmgd->probe_send_count++; |
3201 | ||
49ddf8e6 JB |
3202 | if (dst) { |
3203 | mutex_lock(&sdata->local->sta_mtx); | |
3204 | sta = sta_info_get(sdata, dst); | |
3205 | if (!WARN_ON(!sta)) | |
3206 | ieee80211_check_fast_rx(sta); | |
3207 | mutex_unlock(&sdata->local->sta_mtx); | |
3208 | } | |
3209 | ||
30686bf7 | 3210 | if (ieee80211_hw_check(&sdata->local->hw, REPORTS_TX_ACK_STATUS)) { |
04ac3c0e | 3211 | ifmgd->nullfunc_failed = false; |
2832943c | 3212 | ieee80211_send_nullfunc(sdata->local, sdata, false); |
04ac3c0e | 3213 | } else { |
45ad6834 | 3214 | ieee80211_mlme_send_probe_req(sdata, sdata->vif.addr, dst, |
f276e20b JB |
3215 | sdata->vif.cfg.ssid, |
3216 | sdata->vif.cfg.ssid_len, | |
bfd8403a | 3217 | sdata->deflink.u.mgd.bss->channel); |
4e5ff376 | 3218 | } |
a43abf29 | 3219 | |
180205bd | 3220 | ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms); |
8d61ffa5 | 3221 | run_again(sdata, ifmgd->probe_timeout); |
a43abf29 ML |
3222 | } |
3223 | ||
b291ba11 JB |
3224 | static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, |
3225 | bool beacon) | |
04de8381 | 3226 | { |
04de8381 | 3227 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
b291ba11 | 3228 | bool already = false; |
34bfc411 | 3229 | |
f1871abd | 3230 | if (WARN_ON_ONCE(ieee80211_vif_is_mld(&sdata->vif))) |
5bd5666d JB |
3231 | return; |
3232 | ||
9607e6b6 | 3233 | if (!ieee80211_sdata_running(sdata)) |
0e2b6286 JB |
3234 | return; |
3235 | ||
8d61ffa5 | 3236 | sdata_lock(sdata); |
77fdaa12 JB |
3237 | |
3238 | if (!ifmgd->associated) | |
3239 | goto out; | |
3240 | ||
133d40f9 SG |
3241 | mutex_lock(&sdata->local->mtx); |
3242 | ||
3243 | if (sdata->local->tmp_channel || sdata->local->scanning) { | |
3244 | mutex_unlock(&sdata->local->mtx); | |
3245 | goto out; | |
3246 | } | |
3247 | ||
b33fb28c LP |
3248 | if (sdata->local->suspending) { |
3249 | /* reschedule after resume */ | |
3250 | mutex_unlock(&sdata->local->mtx); | |
3251 | ieee80211_reset_ap_probe(sdata); | |
3252 | goto out; | |
3253 | } | |
3254 | ||
a13fbe54 | 3255 | if (beacon) { |
bdcbd8e0 | 3256 | mlme_dbg_ratelimited(sdata, |
59c1ec2b BG |
3257 | "detected beacon loss from AP (missed %d beacons) - probing\n", |
3258 | beacon_loss_count); | |
bdcbd8e0 | 3259 | |
98f03342 | 3260 | ieee80211_cqm_beacon_loss_notify(&sdata->vif, GFP_KERNEL); |
a13fbe54 | 3261 | } |
04de8381 | 3262 | |
b291ba11 JB |
3263 | /* |
3264 | * The driver/our work has already reported this event or the | |
3265 | * connection monitoring has kicked in and we have already sent | |
3266 | * a probe request. Or maybe the AP died and the driver keeps | |
3267 | * reporting until we disassociate... | |
3268 | * | |
3269 | * In either case we have to ignore the current call to this | |
3270 | * function (except for setting the correct probe reason bit) | |
3271 | * because otherwise we would reset the timer every time and | |
3272 | * never check whether we received a probe response! | |
3273 | */ | |
392b9ffb | 3274 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) |
b291ba11 JB |
3275 | already = true; |
3276 | ||
12b5f34d EP |
3277 | ifmgd->flags |= IEEE80211_STA_CONNECTION_POLL; |
3278 | ||
133d40f9 SG |
3279 | mutex_unlock(&sdata->local->mtx); |
3280 | ||
b291ba11 JB |
3281 | if (already) |
3282 | goto out; | |
3283 | ||
4e751843 | 3284 | mutex_lock(&sdata->local->iflist_mtx); |
4a733ef1 | 3285 | ieee80211_recalc_ps(sdata->local); |
4e751843 JB |
3286 | mutex_unlock(&sdata->local->iflist_mtx); |
3287 | ||
a43abf29 ML |
3288 | ifmgd->probe_send_count = 0; |
3289 | ieee80211_mgd_probe_ap_send(sdata); | |
77fdaa12 | 3290 | out: |
8d61ffa5 | 3291 | sdata_unlock(sdata); |
04de8381 KV |
3292 | } |
3293 | ||
a619a4c0 JO |
3294 | struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, |
3295 | struct ieee80211_vif *vif) | |
3296 | { | |
3297 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
3298 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
d9b3b28b | 3299 | struct cfg80211_bss *cbss; |
a619a4c0 | 3300 | struct sk_buff *skb; |
f2622138 | 3301 | const struct element *ssid; |
88c868c4 | 3302 | int ssid_len; |
a619a4c0 | 3303 | |
5bd5666d | 3304 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION || |
f1871abd | 3305 | ieee80211_vif_is_mld(&sdata->vif))) |
a619a4c0 JO |
3306 | return NULL; |
3307 | ||
8d61ffa5 | 3308 | sdata_assert_lock(sdata); |
a619a4c0 | 3309 | |
d9b3b28b | 3310 | if (ifmgd->associated) |
bfd8403a | 3311 | cbss = sdata->deflink.u.mgd.bss; |
d9b3b28b EP |
3312 | else if (ifmgd->auth_data) |
3313 | cbss = ifmgd->auth_data->bss; | |
81151ce4 JB |
3314 | else if (ifmgd->assoc_data && ifmgd->assoc_data->link[0].bss) |
3315 | cbss = ifmgd->assoc_data->link[0].bss; | |
d9b3b28b | 3316 | else |
a619a4c0 JO |
3317 | return NULL; |
3318 | ||
9caf0364 | 3319 | rcu_read_lock(); |
f2622138 JB |
3320 | ssid = ieee80211_bss_get_elem(cbss, WLAN_EID_SSID); |
3321 | if (WARN_ONCE(!ssid || ssid->datalen > IEEE80211_MAX_SSID_LEN, | |
3322 | "invalid SSID element (len=%d)", | |
3323 | ssid ? ssid->datalen : -1)) | |
88c868c4 SG |
3324 | ssid_len = 0; |
3325 | else | |
f2622138 | 3326 | ssid_len = ssid->datalen; |
88c868c4 | 3327 | |
a344d677 | 3328 | skb = ieee80211_build_probe_req(sdata, sdata->vif.addr, cbss->bssid, |
55de908a | 3329 | (u32) -1, cbss->channel, |
f2622138 | 3330 | ssid->data, ssid_len, |
00387f32 | 3331 | NULL, 0, IEEE80211_PROBE_FLAG_DIRECTED); |
9caf0364 | 3332 | rcu_read_unlock(); |
a619a4c0 JO |
3333 | |
3334 | return skb; | |
3335 | } | |
3336 | EXPORT_SYMBOL(ieee80211_ap_probereq_get); | |
3337 | ||
a90faa9d EG |
3338 | static void ieee80211_report_disconnect(struct ieee80211_sub_if_data *sdata, |
3339 | const u8 *buf, size_t len, bool tx, | |
3f8a39ff | 3340 | u16 reason, bool reconnect) |
a90faa9d EG |
3341 | { |
3342 | struct ieee80211_event event = { | |
3343 | .type = MLME_EVENT, | |
3344 | .u.mlme.data = tx ? DEAUTH_TX_EVENT : DEAUTH_RX_EVENT, | |
3345 | .u.mlme.reason = reason, | |
3346 | }; | |
3347 | ||
3348 | if (tx) | |
3f8a39ff | 3349 | cfg80211_tx_mlme_mgmt(sdata->dev, buf, len, reconnect); |
a90faa9d EG |
3350 | else |
3351 | cfg80211_rx_mlme_mgmt(sdata->dev, buf, len); | |
3352 | ||
3353 | drv_event_callback(sdata->local, sdata, &event); | |
3354 | } | |
3355 | ||
eef9e54c | 3356 | static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata) |
1e4dcd01 | 3357 | { |
59af6928 | 3358 | struct ieee80211_local *local = sdata->local; |
1e4dcd01 | 3359 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
6ae16775 | 3360 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
6c18b27d | 3361 | bool tx; |
1e4dcd01 | 3362 | |
8d61ffa5 | 3363 | sdata_lock(sdata); |
1e4dcd01 | 3364 | if (!ifmgd->associated) { |
8d61ffa5 | 3365 | sdata_unlock(sdata); |
1e4dcd01 JO |
3366 | return; |
3367 | } | |
3368 | ||
81151ce4 | 3369 | /* in MLO assume we have a link where we can TX the frame */ |
f1871abd IP |
3370 | tx = ieee80211_vif_is_mld(&sdata->vif) || |
3371 | !sdata->deflink.csa_block_tx; | |
6c18b27d | 3372 | |
3f8a39ff | 3373 | if (!ifmgd->driver_disconnect) { |
81151ce4 JB |
3374 | unsigned int link_id; |
3375 | ||
3f8a39ff JB |
3376 | /* |
3377 | * AP is probably out of range (or not reachable for another | |
81151ce4 JB |
3378 | * reason) so remove the bss structs for that AP. In the case |
3379 | * of multi-link, it's not clear that all of them really are | |
3380 | * out of range, but if they weren't the driver likely would | |
3381 | * have switched to just have a single link active? | |
3f8a39ff | 3382 | */ |
81151ce4 JB |
3383 | for (link_id = 0; |
3384 | link_id < ARRAY_SIZE(sdata->link); | |
3385 | link_id++) { | |
3386 | struct ieee80211_link_data *link; | |
3387 | ||
3388 | link = sdata_dereference(sdata->link[link_id], sdata); | |
3389 | if (!link) | |
3390 | continue; | |
3391 | cfg80211_unlink_bss(local->hw.wiphy, link->u.mgd.bss); | |
3392 | link->u.mgd.bss = NULL; | |
3393 | } | |
3f8a39ff | 3394 | } |
20eb7ea9 | 3395 | |
37ad3888 | 3396 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
3f8a39ff JB |
3397 | ifmgd->driver_disconnect ? |
3398 | WLAN_REASON_DEAUTH_LEAVING : | |
3399 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, | |
6c18b27d | 3400 | tx, frame_buf); |
59af6928 | 3401 | mutex_lock(&local->mtx); |
39d80599 | 3402 | /* the other links will be destroyed */ |
d0a9123e | 3403 | sdata->vif.bss_conf.csa_active = false; |
bfd8403a JB |
3404 | sdata->deflink.u.mgd.csa_waiting_bcn = false; |
3405 | if (sdata->deflink.csa_block_tx) { | |
a46992b4 LC |
3406 | ieee80211_wake_vif_queues(local, sdata, |
3407 | IEEE80211_QUEUE_STOP_REASON_CSA); | |
bfd8403a | 3408 | sdata->deflink.csa_block_tx = false; |
a46992b4 | 3409 | } |
59af6928 | 3410 | mutex_unlock(&local->mtx); |
7da7cc1d | 3411 | |
6c18b27d | 3412 | ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), tx, |
3f8a39ff JB |
3413 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, |
3414 | ifmgd->reconnect); | |
3415 | ifmgd->reconnect = false; | |
a90faa9d | 3416 | |
8d61ffa5 | 3417 | sdata_unlock(sdata); |
1e4dcd01 JO |
3418 | } |
3419 | ||
4b8d43f1 JB |
3420 | static void ieee80211_beacon_connection_loss_work(struct wiphy *wiphy, |
3421 | struct wiphy_work *work) | |
b291ba11 JB |
3422 | { |
3423 | struct ieee80211_sub_if_data *sdata = | |
3424 | container_of(work, struct ieee80211_sub_if_data, | |
1e4dcd01 | 3425 | u.mgd.beacon_connection_loss_work); |
a85e1d55 | 3426 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
a85e1d55 | 3427 | |
682bd38b | 3428 | if (ifmgd->connection_loss) { |
882a7c69 | 3429 | sdata_info(sdata, "Connection to AP %pM lost\n", |
b65567b0 | 3430 | sdata->vif.cfg.ap_addr); |
eef9e54c | 3431 | __ieee80211_disconnect(sdata); |
3f8a39ff JB |
3432 | ifmgd->connection_loss = false; |
3433 | } else if (ifmgd->driver_disconnect) { | |
3434 | sdata_info(sdata, | |
3435 | "Driver requested disconnection from AP %pM\n", | |
b65567b0 | 3436 | sdata->vif.cfg.ap_addr); |
3f8a39ff JB |
3437 | __ieee80211_disconnect(sdata); |
3438 | ifmgd->driver_disconnect = false; | |
882a7c69 | 3439 | } else { |
5bd5666d JB |
3440 | if (ifmgd->associated) |
3441 | sdata->deflink.u.mgd.beacon_loss_count++; | |
1e4dcd01 | 3442 | ieee80211_mgd_probe_ap(sdata, true); |
882a7c69 JB |
3443 | } |
3444 | } | |
3445 | ||
4b8d43f1 JB |
3446 | static void ieee80211_csa_connection_drop_work(struct wiphy *wiphy, |
3447 | struct wiphy_work *work) | |
882a7c69 JB |
3448 | { |
3449 | struct ieee80211_sub_if_data *sdata = | |
3450 | container_of(work, struct ieee80211_sub_if_data, | |
3451 | u.mgd.csa_connection_drop_work); | |
3452 | ||
eef9e54c | 3453 | __ieee80211_disconnect(sdata); |
b291ba11 JB |
3454 | } |
3455 | ||
04de8381 KV |
3456 | void ieee80211_beacon_loss(struct ieee80211_vif *vif) |
3457 | { | |
3458 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
1e4dcd01 | 3459 | struct ieee80211_hw *hw = &sdata->local->hw; |
04de8381 | 3460 | |
b5878a2d JB |
3461 | trace_api_beacon_loss(sdata); |
3462 | ||
682bd38b | 3463 | sdata->u.mgd.connection_loss = false; |
4b8d43f1 | 3464 | wiphy_work_queue(hw->wiphy, &sdata->u.mgd.beacon_connection_loss_work); |
04de8381 KV |
3465 | } |
3466 | EXPORT_SYMBOL(ieee80211_beacon_loss); | |
3467 | ||
1e4dcd01 JO |
3468 | void ieee80211_connection_loss(struct ieee80211_vif *vif) |
3469 | { | |
3470 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
3471 | struct ieee80211_hw *hw = &sdata->local->hw; | |
3472 | ||
b5878a2d JB |
3473 | trace_api_connection_loss(sdata); |
3474 | ||
682bd38b | 3475 | sdata->u.mgd.connection_loss = true; |
4b8d43f1 | 3476 | wiphy_work_queue(hw->wiphy, &sdata->u.mgd.beacon_connection_loss_work); |
1e4dcd01 JO |
3477 | } |
3478 | EXPORT_SYMBOL(ieee80211_connection_loss); | |
3479 | ||
3f8a39ff JB |
3480 | void ieee80211_disconnect(struct ieee80211_vif *vif, bool reconnect) |
3481 | { | |
3482 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
3483 | struct ieee80211_hw *hw = &sdata->local->hw; | |
3484 | ||
3485 | trace_api_disconnect(sdata, reconnect); | |
3486 | ||
3487 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
3488 | return; | |
3489 | ||
3490 | sdata->u.mgd.driver_disconnect = true; | |
3491 | sdata->u.mgd.reconnect = reconnect; | |
4b8d43f1 | 3492 | wiphy_work_queue(hw->wiphy, &sdata->u.mgd.beacon_connection_loss_work); |
3f8a39ff JB |
3493 | } |
3494 | EXPORT_SYMBOL(ieee80211_disconnect); | |
1e4dcd01 | 3495 | |
66e67e41 JB |
3496 | static void ieee80211_destroy_auth_data(struct ieee80211_sub_if_data *sdata, |
3497 | bool assoc) | |
3498 | { | |
3499 | struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data; | |
3500 | ||
8d61ffa5 | 3501 | sdata_assert_lock(sdata); |
66e67e41 | 3502 | |
66e67e41 | 3503 | if (!assoc) { |
c1e140bf EG |
3504 | /* |
3505 | * we are not authenticated yet, the only timer that could be | |
3506 | * running is the timeout for the authentication response which | |
3507 | * which is not relevant anymore. | |
3508 | */ | |
3509 | del_timer_sync(&sdata->u.mgd.timer); | |
81151ce4 | 3510 | sta_info_destroy_addr(sdata, auth_data->ap_addr); |
66e67e41 | 3511 | |
81151ce4 | 3512 | /* other links are destroyed */ |
5bd5666d | 3513 | sdata->deflink.u.mgd.conn_flags = 0; |
bfd8403a | 3514 | eth_zero_addr(sdata->deflink.u.mgd.bssid); |
d8675a63 JB |
3515 | ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
3516 | BSS_CHANGED_BSSID); | |
028e8da0 | 3517 | sdata->u.mgd.flags = 0; |
69371801 | 3518 | |
34a3740d | 3519 | mutex_lock(&sdata->local->mtx); |
b4f85443 | 3520 | ieee80211_link_release_channel(&sdata->deflink); |
6d543b34 | 3521 | ieee80211_vif_set_links(sdata, 0, 0); |
69371801 | 3522 | mutex_unlock(&sdata->local->mtx); |
66e67e41 JB |
3523 | } |
3524 | ||
5b112d3d | 3525 | cfg80211_put_bss(sdata->local->hw.wiphy, auth_data->bss); |
66e67e41 JB |
3526 | kfree(auth_data); |
3527 | sdata->u.mgd.auth_data = NULL; | |
3528 | } | |
3529 | ||
afa2d659 JB |
3530 | enum assoc_status { |
3531 | ASSOC_SUCCESS, | |
3532 | ASSOC_REJECTED, | |
3533 | ASSOC_TIMEOUT, | |
3534 | ASSOC_ABANDON, | |
3535 | }; | |
3536 | ||
c9c99f89 | 3537 | static void ieee80211_destroy_assoc_data(struct ieee80211_sub_if_data *sdata, |
afa2d659 | 3538 | enum assoc_status status) |
c9c99f89 JB |
3539 | { |
3540 | struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; | |
3541 | ||
3542 | sdata_assert_lock(sdata); | |
3543 | ||
afa2d659 | 3544 | if (status != ASSOC_SUCCESS) { |
c9c99f89 JB |
3545 | /* |
3546 | * we are not associated yet, the only timer that could be | |
3547 | * running is the timeout for the association response which | |
3548 | * which is not relevant anymore. | |
3549 | */ | |
3550 | del_timer_sync(&sdata->u.mgd.timer); | |
81151ce4 | 3551 | sta_info_destroy_addr(sdata, assoc_data->ap_addr); |
c9c99f89 | 3552 | |
5bd5666d | 3553 | sdata->deflink.u.mgd.conn_flags = 0; |
bfd8403a | 3554 | eth_zero_addr(sdata->deflink.u.mgd.bssid); |
d8675a63 JB |
3555 | ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
3556 | BSS_CHANGED_BSSID); | |
c9c99f89 | 3557 | sdata->u.mgd.flags = 0; |
d0a9123e | 3558 | sdata->vif.bss_conf.mu_mimo_owner = false; |
b5a33d52 | 3559 | |
afa2d659 | 3560 | if (status != ASSOC_REJECTED) { |
f662d2f4 | 3561 | struct cfg80211_assoc_failure data = { |
afa2d659 | 3562 | .timeout = status == ASSOC_TIMEOUT, |
f662d2f4 | 3563 | }; |
81151ce4 JB |
3564 | int i; |
3565 | ||
3566 | BUILD_BUG_ON(ARRAY_SIZE(data.bss) != | |
3567 | ARRAY_SIZE(assoc_data->link)); | |
3568 | ||
3569 | for (i = 0; i < ARRAY_SIZE(data.bss); i++) | |
3570 | data.bss[i] = assoc_data->link[i].bss; | |
3571 | ||
f1871abd | 3572 | if (ieee80211_vif_is_mld(&sdata->vif)) |
81151ce4 | 3573 | data.ap_mld_addr = assoc_data->ap_addr; |
f662d2f4 JB |
3574 | |
3575 | cfg80211_assoc_failure(sdata->dev, &data); | |
3576 | } | |
81151ce4 | 3577 | |
69371801 JB |
3578 | mutex_lock(&sdata->local->mtx); |
3579 | ieee80211_link_release_channel(&sdata->deflink); | |
6d543b34 | 3580 | ieee80211_vif_set_links(sdata, 0, 0); |
69371801 | 3581 | mutex_unlock(&sdata->local->mtx); |
c9c99f89 JB |
3582 | } |
3583 | ||
3584 | kfree(assoc_data); | |
3585 | sdata->u.mgd.assoc_data = NULL; | |
3586 | } | |
3587 | ||
66e67e41 JB |
3588 | static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata, |
3589 | struct ieee80211_mgmt *mgmt, size_t len) | |
3590 | { | |
1672c0e3 | 3591 | struct ieee80211_local *local = sdata->local; |
66e67e41 | 3592 | struct ieee80211_mgd_auth_data *auth_data = sdata->u.mgd.auth_data; |
49a765d6 | 3593 | const struct element *challenge; |
66e67e41 | 3594 | u8 *pos; |
1672c0e3 | 3595 | u32 tx_flags = 0; |
15fae341 JB |
3596 | struct ieee80211_prep_tx_info info = { |
3597 | .subtype = IEEE80211_STYPE_AUTH, | |
3598 | }; | |
66e67e41 JB |
3599 | |
3600 | pos = mgmt->u.auth.variable; | |
49a765d6 JB |
3601 | challenge = cfg80211_find_elem(WLAN_EID_CHALLENGE, pos, |
3602 | len - (pos - (u8 *)mgmt)); | |
3603 | if (!challenge) | |
66e67e41 JB |
3604 | return; |
3605 | auth_data->expected_transaction = 4; | |
15fae341 | 3606 | drv_mgd_prepare_tx(sdata->local, sdata, &info); |
30686bf7 | 3607 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
1672c0e3 JB |
3608 | tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | |
3609 | IEEE80211_TX_INTFL_MLME_CONN_TX; | |
700e8ea6 | 3610 | ieee80211_send_auth(sdata, 3, auth_data->algorithm, 0, |
49a765d6 JB |
3611 | (void *)challenge, |
3612 | challenge->datalen + sizeof(*challenge), | |
81151ce4 | 3613 | auth_data->ap_addr, auth_data->ap_addr, |
66e67e41 | 3614 | auth_data->key, auth_data->key_len, |
1672c0e3 | 3615 | auth_data->key_idx, tx_flags); |
66e67e41 JB |
3616 | } |
3617 | ||
a857c21e | 3618 | static bool ieee80211_mark_sta_auth(struct ieee80211_sub_if_data *sdata) |
fc107a93 | 3619 | { |
efb543e6 | 3620 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
81151ce4 | 3621 | const u8 *ap_addr = ifmgd->auth_data->ap_addr; |
fc107a93 | 3622 | struct sta_info *sta; |
33483a6b | 3623 | bool result = true; |
fc107a93 | 3624 | |
efb543e6 JM |
3625 | sdata_info(sdata, "authenticated\n"); |
3626 | ifmgd->auth_data->done = true; | |
3627 | ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC; | |
3628 | ifmgd->auth_data->timeout_started = true; | |
3629 | run_again(sdata, ifmgd->auth_data->timeout); | |
3630 | ||
fc107a93 JM |
3631 | /* move station state to auth */ |
3632 | mutex_lock(&sdata->local->sta_mtx); | |
b65567b0 | 3633 | sta = sta_info_get(sdata, ap_addr); |
fc107a93 | 3634 | if (!sta) { |
b65567b0 | 3635 | WARN_ONCE(1, "%s: STA %pM not found", sdata->name, ap_addr); |
33483a6b WY |
3636 | result = false; |
3637 | goto out; | |
fc107a93 JM |
3638 | } |
3639 | if (sta_info_move_state(sta, IEEE80211_STA_AUTH)) { | |
b65567b0 | 3640 | sdata_info(sdata, "failed moving %pM to auth\n", ap_addr); |
33483a6b WY |
3641 | result = false; |
3642 | goto out; | |
fc107a93 | 3643 | } |
fc107a93 | 3644 | |
33483a6b WY |
3645 | out: |
3646 | mutex_unlock(&sdata->local->sta_mtx); | |
3647 | return result; | |
fc107a93 JM |
3648 | } |
3649 | ||
8d61ffa5 JB |
3650 | static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, |
3651 | struct ieee80211_mgmt *mgmt, size_t len) | |
66e67e41 JB |
3652 | { |
3653 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
66e67e41 | 3654 | u16 auth_alg, auth_transaction, status_code; |
a9409093 EG |
3655 | struct ieee80211_event event = { |
3656 | .type = MLME_EVENT, | |
3657 | .u.mlme.data = AUTH_EVENT, | |
3658 | }; | |
15fae341 JB |
3659 | struct ieee80211_prep_tx_info info = { |
3660 | .subtype = IEEE80211_STYPE_AUTH, | |
3661 | }; | |
66e67e41 | 3662 | |
8d61ffa5 | 3663 | sdata_assert_lock(sdata); |
66e67e41 JB |
3664 | |
3665 | if (len < 24 + 6) | |
8d61ffa5 | 3666 | return; |
66e67e41 JB |
3667 | |
3668 | if (!ifmgd->auth_data || ifmgd->auth_data->done) | |
8d61ffa5 | 3669 | return; |
66e67e41 | 3670 | |
81151ce4 | 3671 | if (!ether_addr_equal(ifmgd->auth_data->ap_addr, mgmt->bssid)) |
8d61ffa5 | 3672 | return; |
66e67e41 JB |
3673 | |
3674 | auth_alg = le16_to_cpu(mgmt->u.auth.auth_alg); | |
3675 | auth_transaction = le16_to_cpu(mgmt->u.auth.auth_transaction); | |
3676 | status_code = le16_to_cpu(mgmt->u.auth.status_code); | |
3677 | ||
3678 | if (auth_alg != ifmgd->auth_data->algorithm || | |
efb543e6 JM |
3679 | (auth_alg != WLAN_AUTH_SAE && |
3680 | auth_transaction != ifmgd->auth_data->expected_transaction) || | |
3681 | (auth_alg == WLAN_AUTH_SAE && | |
3682 | (auth_transaction < ifmgd->auth_data->expected_transaction || | |
3683 | auth_transaction > 2))) { | |
0f4126e8 JM |
3684 | sdata_info(sdata, "%pM unexpected authentication state: alg %d (expected %d) transact %d (expected %d)\n", |
3685 | mgmt->sa, auth_alg, ifmgd->auth_data->algorithm, | |
3686 | auth_transaction, | |
3687 | ifmgd->auth_data->expected_transaction); | |
15fae341 | 3688 | goto notify_driver; |
0f4126e8 | 3689 | } |
66e67e41 JB |
3690 | |
3691 | if (status_code != WLAN_STATUS_SUCCESS) { | |
a4055e74 AO |
3692 | cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); |
3693 | ||
3694 | if (auth_alg == WLAN_AUTH_SAE && | |
4e56cde1 JM |
3695 | (status_code == WLAN_STATUS_ANTI_CLOG_REQUIRED || |
3696 | (auth_transaction == 1 && | |
3697 | (status_code == WLAN_STATUS_SAE_HASH_TO_ELEMENT || | |
94d9864c JB |
3698 | status_code == WLAN_STATUS_SAE_PK)))) { |
3699 | /* waiting for userspace now */ | |
3700 | ifmgd->auth_data->waiting = true; | |
3701 | ifmgd->auth_data->timeout = | |
3702 | jiffies + IEEE80211_AUTH_WAIT_SAE_RETRY; | |
3703 | ifmgd->auth_data->timeout_started = true; | |
3704 | run_again(sdata, ifmgd->auth_data->timeout); | |
15fae341 | 3705 | goto notify_driver; |
94d9864c | 3706 | } |
a4055e74 | 3707 | |
bdcbd8e0 JB |
3708 | sdata_info(sdata, "%pM denied authentication (status %d)\n", |
3709 | mgmt->sa, status_code); | |
dac211ec | 3710 | ieee80211_destroy_auth_data(sdata, false); |
a9409093 EG |
3711 | event.u.mlme.status = MLME_DENIED; |
3712 | event.u.mlme.reason = status_code; | |
3713 | drv_event_callback(sdata->local, sdata, &event); | |
15fae341 | 3714 | goto notify_driver; |
66e67e41 JB |
3715 | } |
3716 | ||
3717 | switch (ifmgd->auth_data->algorithm) { | |
3718 | case WLAN_AUTH_OPEN: | |
3719 | case WLAN_AUTH_LEAP: | |
3720 | case WLAN_AUTH_FT: | |
6b8ece3a | 3721 | case WLAN_AUTH_SAE: |
dbc0c2cb JM |
3722 | case WLAN_AUTH_FILS_SK: |
3723 | case WLAN_AUTH_FILS_SK_PFS: | |
3724 | case WLAN_AUTH_FILS_PK: | |
66e67e41 JB |
3725 | break; |
3726 | case WLAN_AUTH_SHARED_KEY: | |
3727 | if (ifmgd->auth_data->expected_transaction != 4) { | |
3728 | ieee80211_auth_challenge(sdata, mgmt, len); | |
3729 | /* need another frame */ | |
8d61ffa5 | 3730 | return; |
66e67e41 JB |
3731 | } |
3732 | break; | |
3733 | default: | |
3734 | WARN_ONCE(1, "invalid auth alg %d", | |
3735 | ifmgd->auth_data->algorithm); | |
15fae341 | 3736 | goto notify_driver; |
66e67e41 JB |
3737 | } |
3738 | ||
a9409093 | 3739 | event.u.mlme.status = MLME_SUCCESS; |
15fae341 | 3740 | info.success = 1; |
a9409093 | 3741 | drv_event_callback(sdata->local, sdata, &event); |
efb543e6 JM |
3742 | if (ifmgd->auth_data->algorithm != WLAN_AUTH_SAE || |
3743 | (auth_transaction == 2 && | |
3744 | ifmgd->auth_data->expected_transaction == 2)) { | |
a857c21e | 3745 | if (!ieee80211_mark_sta_auth(sdata)) |
0daa63ed | 3746 | return; /* ignore frame -- wait for timeout */ |
efb543e6 JM |
3747 | } else if (ifmgd->auth_data->algorithm == WLAN_AUTH_SAE && |
3748 | auth_transaction == 2) { | |
3749 | sdata_info(sdata, "SAE peer confirmed\n"); | |
3750 | ifmgd->auth_data->peer_confirmed = true; | |
6b8ece3a JM |
3751 | } |
3752 | ||
6ff57cf8 | 3753 | cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); |
15fae341 JB |
3754 | notify_driver: |
3755 | drv_mgd_complete_tx(sdata->local, sdata, &info); | |
66e67e41 JB |
3756 | } |
3757 | ||
dfa1ad29 CO |
3758 | #define case_WLAN(type) \ |
3759 | case WLAN_REASON_##type: return #type | |
3760 | ||
79c92ca4 | 3761 | const char *ieee80211_get_reason_code_string(u16 reason_code) |
dfa1ad29 CO |
3762 | { |
3763 | switch (reason_code) { | |
3764 | case_WLAN(UNSPECIFIED); | |
3765 | case_WLAN(PREV_AUTH_NOT_VALID); | |
3766 | case_WLAN(DEAUTH_LEAVING); | |
3767 | case_WLAN(DISASSOC_DUE_TO_INACTIVITY); | |
3768 | case_WLAN(DISASSOC_AP_BUSY); | |
3769 | case_WLAN(CLASS2_FRAME_FROM_NONAUTH_STA); | |
3770 | case_WLAN(CLASS3_FRAME_FROM_NONASSOC_STA); | |
3771 | case_WLAN(DISASSOC_STA_HAS_LEFT); | |
3772 | case_WLAN(STA_REQ_ASSOC_WITHOUT_AUTH); | |
3773 | case_WLAN(DISASSOC_BAD_POWER); | |
3774 | case_WLAN(DISASSOC_BAD_SUPP_CHAN); | |
3775 | case_WLAN(INVALID_IE); | |
3776 | case_WLAN(MIC_FAILURE); | |
3777 | case_WLAN(4WAY_HANDSHAKE_TIMEOUT); | |
3778 | case_WLAN(GROUP_KEY_HANDSHAKE_TIMEOUT); | |
3779 | case_WLAN(IE_DIFFERENT); | |
3780 | case_WLAN(INVALID_GROUP_CIPHER); | |
3781 | case_WLAN(INVALID_PAIRWISE_CIPHER); | |
3782 | case_WLAN(INVALID_AKMP); | |
3783 | case_WLAN(UNSUPP_RSN_VERSION); | |
3784 | case_WLAN(INVALID_RSN_IE_CAP); | |
3785 | case_WLAN(IEEE8021X_FAILED); | |
3786 | case_WLAN(CIPHER_SUITE_REJECTED); | |
3787 | case_WLAN(DISASSOC_UNSPECIFIED_QOS); | |
3788 | case_WLAN(DISASSOC_QAP_NO_BANDWIDTH); | |
3789 | case_WLAN(DISASSOC_LOW_ACK); | |
3790 | case_WLAN(DISASSOC_QAP_EXCEED_TXOP); | |
3791 | case_WLAN(QSTA_LEAVE_QBSS); | |
3792 | case_WLAN(QSTA_NOT_USE); | |
3793 | case_WLAN(QSTA_REQUIRE_SETUP); | |
3794 | case_WLAN(QSTA_TIMEOUT); | |
3795 | case_WLAN(QSTA_CIPHER_NOT_SUPP); | |
3796 | case_WLAN(MESH_PEER_CANCELED); | |
3797 | case_WLAN(MESH_MAX_PEERS); | |
3798 | case_WLAN(MESH_CONFIG); | |
3799 | case_WLAN(MESH_CLOSE); | |
3800 | case_WLAN(MESH_MAX_RETRIES); | |
3801 | case_WLAN(MESH_CONFIRM_TIMEOUT); | |
3802 | case_WLAN(MESH_INVALID_GTK); | |
3803 | case_WLAN(MESH_INCONSISTENT_PARAM); | |
3804 | case_WLAN(MESH_INVALID_SECURITY); | |
3805 | case_WLAN(MESH_PATH_ERROR); | |
3806 | case_WLAN(MESH_PATH_NOFORWARD); | |
3807 | case_WLAN(MESH_PATH_DEST_UNREACHABLE); | |
3808 | case_WLAN(MAC_EXISTS_IN_MBSS); | |
3809 | case_WLAN(MESH_CHAN_REGULATORY); | |
3810 | case_WLAN(MESH_CHAN); | |
3811 | default: return "<unknown>"; | |
3812 | } | |
3813 | } | |
66e67e41 | 3814 | |
8d61ffa5 JB |
3815 | static void ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, |
3816 | struct ieee80211_mgmt *mgmt, size_t len) | |
f0706e82 | 3817 | { |
46900298 | 3818 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
c9c99f89 | 3819 | u16 reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); |
f0706e82 | 3820 | |
8d61ffa5 | 3821 | sdata_assert_lock(sdata); |
66e67e41 | 3822 | |
f4ea83dd | 3823 | if (len < 24 + 2) |
8d61ffa5 | 3824 | return; |
f0706e82 | 3825 | |
79c92ca4 YW |
3826 | if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) { |
3827 | ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code); | |
3828 | return; | |
3829 | } | |
3830 | ||
c9c99f89 | 3831 | if (ifmgd->associated && |
81151ce4 | 3832 | ether_addr_equal(mgmt->bssid, sdata->vif.cfg.ap_addr)) { |
c9c99f89 | 3833 | sdata_info(sdata, "deauthenticated from %pM (Reason: %u=%s)\n", |
81151ce4 | 3834 | sdata->vif.cfg.ap_addr, reason_code, |
c9c99f89 | 3835 | ieee80211_get_reason_code_string(reason_code)); |
f0706e82 | 3836 | |
c9c99f89 | 3837 | ieee80211_set_disassoc(sdata, 0, 0, false, NULL); |
f0706e82 | 3838 | |
c9c99f89 | 3839 | ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, |
3f8a39ff | 3840 | reason_code, false); |
c9c99f89 JB |
3841 | return; |
3842 | } | |
77fdaa12 | 3843 | |
c9c99f89 | 3844 | if (ifmgd->assoc_data && |
81151ce4 | 3845 | ether_addr_equal(mgmt->bssid, ifmgd->assoc_data->ap_addr)) { |
c9c99f89 JB |
3846 | sdata_info(sdata, |
3847 | "deauthenticated from %pM while associating (Reason: %u=%s)\n", | |
81151ce4 | 3848 | ifmgd->assoc_data->ap_addr, reason_code, |
c9c99f89 JB |
3849 | ieee80211_get_reason_code_string(reason_code)); |
3850 | ||
afa2d659 | 3851 | ieee80211_destroy_assoc_data(sdata, ASSOC_ABANDON); |
c9c99f89 JB |
3852 | |
3853 | cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len); | |
3854 | return; | |
3855 | } | |
f0706e82 JB |
3856 | } |
3857 | ||
3858 | ||
8d61ffa5 JB |
3859 | static void ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, |
3860 | struct ieee80211_mgmt *mgmt, size_t len) | |
f0706e82 | 3861 | { |
46900298 | 3862 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
f0706e82 JB |
3863 | u16 reason_code; |
3864 | ||
8d61ffa5 | 3865 | sdata_assert_lock(sdata); |
77fdaa12 | 3866 | |
66e67e41 | 3867 | if (len < 24 + 2) |
8d61ffa5 | 3868 | return; |
77fdaa12 | 3869 | |
66e67e41 | 3870 | if (!ifmgd->associated || |
81151ce4 | 3871 | !ether_addr_equal(mgmt->bssid, sdata->vif.cfg.ap_addr)) |
8d61ffa5 | 3872 | return; |
f0706e82 JB |
3873 | |
3874 | reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); | |
3875 | ||
79c92ca4 YW |
3876 | if (!ether_addr_equal(mgmt->bssid, mgmt->sa)) { |
3877 | ieee80211_tdls_handle_disconnect(sdata, mgmt->sa, reason_code); | |
3878 | return; | |
3879 | } | |
3880 | ||
68506e9a | 3881 | sdata_info(sdata, "disassociated from %pM (Reason: %u=%s)\n", |
81151ce4 | 3882 | sdata->vif.cfg.ap_addr, reason_code, |
68506e9a | 3883 | ieee80211_get_reason_code_string(reason_code)); |
f0706e82 | 3884 | |
37ad3888 JB |
3885 | ieee80211_set_disassoc(sdata, 0, 0, false, NULL); |
3886 | ||
3f8a39ff JB |
3887 | ieee80211_report_disconnect(sdata, (u8 *)mgmt, len, false, reason_code, |
3888 | false); | |
f0706e82 JB |
3889 | } |
3890 | ||
c74d084f CL |
3891 | static void ieee80211_get_rates(struct ieee80211_supported_band *sband, |
3892 | u8 *supp_rates, unsigned int supp_rates_len, | |
3893 | u32 *rates, u32 *basic_rates, | |
3894 | bool *have_higher_than_11mbit, | |
2103dec1 | 3895 | int *min_rate, int *min_rate_index, |
44f6d42c | 3896 | int shift) |
c74d084f CL |
3897 | { |
3898 | int i, j; | |
3899 | ||
3900 | for (i = 0; i < supp_rates_len; i++) { | |
2103dec1 | 3901 | int rate = supp_rates[i] & 0x7f; |
c74d084f CL |
3902 | bool is_basic = !!(supp_rates[i] & 0x80); |
3903 | ||
2103dec1 | 3904 | if ((rate * 5 * (1 << shift)) > 110) |
c74d084f CL |
3905 | *have_higher_than_11mbit = true; |
3906 | ||
3907 | /* | |
08dbff23 JB |
3908 | * Skip HT, VHT, HE, EHT and SAE H2E only BSS membership |
3909 | * selectors since they're not rates. | |
c74d084f | 3910 | * |
a6289d3f | 3911 | * Note: Even though the membership selector and the basic |
c74d084f CL |
3912 | * rate flag share the same bit, they are not exactly |
3913 | * the same. | |
3914 | */ | |
a6289d3f | 3915 | if (supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_HT_PHY) || |
4826e721 | 3916 | supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_VHT_PHY) || |
3598ae87 | 3917 | supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_HE_PHY) || |
08dbff23 | 3918 | supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_EHT_PHY) || |
3598ae87 | 3919 | supp_rates[i] == (0x80 | BSS_MEMBERSHIP_SELECTOR_SAE_H2E)) |
c74d084f CL |
3920 | continue; |
3921 | ||
3922 | for (j = 0; j < sband->n_bitrates; j++) { | |
2103dec1 SW |
3923 | struct ieee80211_rate *br; |
3924 | int brate; | |
3925 | ||
3926 | br = &sband->bitrates[j]; | |
2103dec1 SW |
3927 | |
3928 | brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5); | |
3929 | if (brate == rate) { | |
c74d084f CL |
3930 | *rates |= BIT(j); |
3931 | if (is_basic) | |
3932 | *basic_rates |= BIT(j); | |
2103dec1 SW |
3933 | if ((rate * 5) < *min_rate) { |
3934 | *min_rate = rate * 5; | |
c74d084f CL |
3935 | *min_rate_index = j; |
3936 | } | |
3937 | break; | |
3938 | } | |
3939 | } | |
3940 | } | |
3941 | } | |
f0706e82 | 3942 | |
0143ea09 HD |
3943 | static bool ieee80211_twt_req_supported(struct ieee80211_sub_if_data *sdata, |
3944 | struct ieee80211_supported_band *sband, | |
3945 | const struct link_sta_info *link_sta, | |
55ebd6e6 EG |
3946 | const struct ieee802_11_elems *elems) |
3947 | { | |
0143ea09 | 3948 | const struct ieee80211_sta_he_cap *own_he_cap = |
1ec7291e | 3949 | ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif); |
0143ea09 | 3950 | |
55ebd6e6 EG |
3951 | if (elems->ext_capab_len < 10) |
3952 | return false; | |
3953 | ||
3954 | if (!(elems->ext_capab[9] & WLAN_EXT_CAPA10_TWT_RESPONDER_SUPPORT)) | |
3955 | return false; | |
3956 | ||
98b0b467 | 3957 | return link_sta->pub->he_cap.he_cap_elem.mac_cap_info[0] & |
0143ea09 HD |
3958 | IEEE80211_HE_MAC_CAP0_TWT_RES && |
3959 | own_he_cap && | |
3960 | (own_he_cap->he_cap_elem.mac_cap_info[0] & | |
3961 | IEEE80211_HE_MAC_CAP0_TWT_REQ); | |
55ebd6e6 EG |
3962 | } |
3963 | ||
15ddba5f | 3964 | static u64 ieee80211_recalc_twt_req(struct ieee80211_sub_if_data *sdata, |
0143ea09 HD |
3965 | struct ieee80211_supported_band *sband, |
3966 | struct ieee80211_link_data *link, | |
98b0b467 | 3967 | struct link_sta_info *link_sta, |
c9d3245e JC |
3968 | struct ieee802_11_elems *elems) |
3969 | { | |
0143ea09 | 3970 | bool twt = ieee80211_twt_req_supported(sdata, sband, link_sta, elems); |
c9d3245e | 3971 | |
5bd5666d JB |
3972 | if (link->conf->twt_requester != twt) { |
3973 | link->conf->twt_requester = twt; | |
c9d3245e JC |
3974 | return BSS_CHANGED_TWT; |
3975 | } | |
3976 | return 0; | |
3977 | } | |
3978 | ||
bac2fd3d JB |
3979 | static bool ieee80211_twt_bcast_support(struct ieee80211_sub_if_data *sdata, |
3980 | struct ieee80211_bss_conf *bss_conf, | |
d8b26154 | 3981 | struct ieee80211_supported_band *sband, |
98b0b467 | 3982 | struct link_sta_info *link_sta) |
d8b26154 ST |
3983 | { |
3984 | const struct ieee80211_sta_he_cap *own_he_cap = | |
1ec7291e | 3985 | ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif); |
d8b26154 ST |
3986 | |
3987 | return bss_conf->he_support && | |
98b0b467 | 3988 | (link_sta->pub->he_cap.he_cap_elem.mac_cap_info[2] & |
d8b26154 ST |
3989 | IEEE80211_HE_MAC_CAP2_BCAST_TWT) && |
3990 | own_he_cap && | |
3991 | (own_he_cap->he_cap_elem.mac_cap_info[2] & | |
3992 | IEEE80211_HE_MAC_CAP2_BCAST_TWT); | |
3993 | } | |
3994 | ||
6911458d JB |
3995 | static bool ieee80211_assoc_config_link(struct ieee80211_link_data *link, |
3996 | struct link_sta_info *link_sta, | |
3997 | struct cfg80211_bss *cbss, | |
3998 | struct ieee80211_mgmt *mgmt, | |
3999 | const u8 *elem_start, | |
4000 | unsigned int elem_len, | |
4001 | u64 *changed) | |
4002 | { | |
4003 | struct ieee80211_sub_if_data *sdata = link->sdata; | |
4004 | struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; | |
4005 | struct ieee80211_bss_conf *bss_conf = link->conf; | |
4006 | struct ieee80211_local *local = sdata->local; | |
45ebac4f | 4007 | unsigned int link_id = link->link_id; |
6911458d JB |
4008 | struct ieee80211_elems_parse_params parse_params = { |
4009 | .start = elem_start, | |
4010 | .len = elem_len, | |
45ebac4f | 4011 | .link_id = link_id == assoc_data->assoc_link_id ? -1 : link_id, |
ea5cba26 | 4012 | .from_ap = true, |
6911458d JB |
4013 | }; |
4014 | bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; | |
4015 | bool is_s1g = cbss->channel->band == NL80211_BAND_S1GHZ; | |
4016 | const struct cfg80211_bss_ies *bss_ies = NULL; | |
4017 | struct ieee80211_supported_band *sband; | |
4018 | struct ieee802_11_elems *elems; | |
4019 | u16 capab_info; | |
4020 | bool ret; | |
4021 | ||
4022 | elems = ieee802_11_parse_elems_full(&parse_params); | |
4023 | if (!elems) | |
4024 | return false; | |
4025 | ||
45ebac4f IP |
4026 | if (link_id == assoc_data->assoc_link_id) { |
4027 | capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); | |
c2d052a3 IP |
4028 | |
4029 | /* | |
4030 | * we should not get to this flow unless the association was | |
4031 | * successful, so set the status directly to success | |
4032 | */ | |
4033 | assoc_data->link[link_id].status = WLAN_STATUS_SUCCESS; | |
45ebac4f IP |
4034 | } else if (!elems->prof) { |
4035 | ret = false; | |
4036 | goto out; | |
4037 | } else { | |
4038 | const u8 *ptr = elems->prof->variable + | |
4039 | elems->prof->sta_info_len - 1; | |
4040 | ||
c2d052a3 IP |
4041 | /* |
4042 | * During parsing, we validated that these fields exist, | |
4043 | * otherwise elems->prof would have been set to NULL. | |
4044 | */ | |
45ebac4f | 4045 | capab_info = get_unaligned_le16(ptr); |
c2d052a3 IP |
4046 | assoc_data->link[link_id].status = get_unaligned_le16(ptr + 2); |
4047 | ||
4048 | if (assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS) { | |
4049 | link_info(link, "association response status code=%u\n", | |
4050 | assoc_data->link[link_id].status); | |
4051 | ret = true; | |
4052 | goto out; | |
4053 | } | |
45ebac4f | 4054 | } |
6911458d JB |
4055 | |
4056 | if (!is_s1g && !elems->supp_rates) { | |
4057 | sdata_info(sdata, "no SuppRates element in AssocResp\n"); | |
4058 | ret = false; | |
4059 | goto out; | |
4060 | } | |
4061 | ||
4062 | link->u.mgd.tdls_chan_switch_prohibited = | |
4063 | elems->ext_capab && elems->ext_capab_len >= 5 && | |
4064 | (elems->ext_capab[4] & WLAN_EXT_CAPA5_TDLS_CH_SW_PROHIBITED); | |
4065 | ||
4066 | /* | |
4067 | * Some APs are erroneously not including some information in their | |
4068 | * (re)association response frames. Try to recover by using the data | |
4069 | * from the beacon or probe response. This seems to afflict mobile | |
4070 | * 2G/3G/4G wifi routers, reported models include the "Onda PN51T", | |
4071 | * "Vodafone PocketWiFi 2", "ZTE MF60" and a similar T-Mobile device. | |
4072 | */ | |
4073 | if (!is_6ghz && | |
4074 | ((assoc_data->wmm && !elems->wmm_param) || | |
4075 | (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT) && | |
4076 | (!elems->ht_cap_elem || !elems->ht_operation)) || | |
4077 | (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) && | |
4078 | (!elems->vht_cap_elem || !elems->vht_operation)))) { | |
4079 | const struct cfg80211_bss_ies *ies; | |
4080 | struct ieee802_11_elems *bss_elems; | |
4081 | ||
4082 | rcu_read_lock(); | |
4083 | ies = rcu_dereference(cbss->ies); | |
4084 | if (ies) | |
4085 | bss_ies = kmemdup(ies, sizeof(*ies) + ies->len, | |
4086 | GFP_ATOMIC); | |
4087 | rcu_read_unlock(); | |
4088 | if (!bss_ies) { | |
4089 | ret = false; | |
4090 | goto out; | |
4091 | } | |
4092 | ||
4093 | parse_params.start = bss_ies->data; | |
4094 | parse_params.len = bss_ies->len; | |
8950b598 | 4095 | parse_params.bss = cbss; |
6911458d JB |
4096 | bss_elems = ieee802_11_parse_elems_full(&parse_params); |
4097 | if (!bss_elems) { | |
4098 | ret = false; | |
4099 | goto out; | |
4100 | } | |
4101 | ||
4102 | if (assoc_data->wmm && | |
4103 | !elems->wmm_param && bss_elems->wmm_param) { | |
4104 | elems->wmm_param = bss_elems->wmm_param; | |
4105 | sdata_info(sdata, | |
4106 | "AP bug: WMM param missing from AssocResp\n"); | |
4107 | } | |
4108 | ||
4109 | /* | |
4110 | * Also check if we requested HT/VHT, otherwise the AP doesn't | |
4111 | * have to include the IEs in the (re)association response. | |
4112 | */ | |
4113 | if (!elems->ht_cap_elem && bss_elems->ht_cap_elem && | |
4114 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) { | |
4115 | elems->ht_cap_elem = bss_elems->ht_cap_elem; | |
4116 | sdata_info(sdata, | |
4117 | "AP bug: HT capability missing from AssocResp\n"); | |
4118 | } | |
4119 | if (!elems->ht_operation && bss_elems->ht_operation && | |
4120 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) { | |
4121 | elems->ht_operation = bss_elems->ht_operation; | |
4122 | sdata_info(sdata, | |
4123 | "AP bug: HT operation missing from AssocResp\n"); | |
4124 | } | |
4125 | if (!elems->vht_cap_elem && bss_elems->vht_cap_elem && | |
4126 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) { | |
4127 | elems->vht_cap_elem = bss_elems->vht_cap_elem; | |
4128 | sdata_info(sdata, | |
4129 | "AP bug: VHT capa missing from AssocResp\n"); | |
4130 | } | |
4131 | if (!elems->vht_operation && bss_elems->vht_operation && | |
4132 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) { | |
4133 | elems->vht_operation = bss_elems->vht_operation; | |
4134 | sdata_info(sdata, | |
4135 | "AP bug: VHT operation missing from AssocResp\n"); | |
4136 | } | |
4137 | ||
4138 | kfree(bss_elems); | |
4139 | } | |
4140 | ||
4141 | /* | |
4142 | * We previously checked these in the beacon/probe response, so | |
4143 | * they should be present here. This is just a safety net. | |
4144 | */ | |
4145 | if (!is_6ghz && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT) && | |
4146 | (!elems->wmm_param || !elems->ht_cap_elem || !elems->ht_operation)) { | |
4147 | sdata_info(sdata, | |
4148 | "HT AP is missing WMM params or HT capability/operation\n"); | |
4149 | ret = false; | |
4150 | goto out; | |
4151 | } | |
4152 | ||
4153 | if (!is_6ghz && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) && | |
4154 | (!elems->vht_cap_elem || !elems->vht_operation)) { | |
4155 | sdata_info(sdata, | |
4156 | "VHT AP is missing VHT capability/operation\n"); | |
4157 | ret = false; | |
4158 | goto out; | |
4159 | } | |
4160 | ||
4161 | if (is_6ghz && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && | |
4162 | !elems->he_6ghz_capa) { | |
4163 | sdata_info(sdata, | |
4164 | "HE 6 GHz AP is missing HE 6 GHz band capability\n"); | |
4165 | ret = false; | |
4166 | goto out; | |
4167 | } | |
4168 | ||
efe9c2bf | 4169 | if (WARN_ON(!link->conf->chandef.chan)) { |
6911458d JB |
4170 | ret = false; |
4171 | goto out; | |
4172 | } | |
efe9c2bf | 4173 | sband = local->hw.wiphy->bands[link->conf->chandef.chan->band]; |
6911458d JB |
4174 | |
4175 | if (!(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && | |
4176 | (!elems->he_cap || !elems->he_operation)) { | |
6911458d JB |
4177 | sdata_info(sdata, |
4178 | "HE AP is missing HE capability/operation\n"); | |
4179 | ret = false; | |
4180 | goto out; | |
4181 | } | |
4182 | ||
4183 | /* Set up internal HT/VHT capabilities */ | |
4184 | if (elems->ht_cap_elem && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT)) | |
4185 | ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, | |
4186 | elems->ht_cap_elem, | |
4187 | link_sta); | |
4188 | ||
4189 | if (elems->vht_cap_elem && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT)) | |
4190 | ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, | |
4191 | elems->vht_cap_elem, | |
4192 | link_sta); | |
4193 | ||
4194 | if (elems->he_operation && !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) && | |
4195 | elems->he_cap) { | |
4196 | ieee80211_he_cap_ie_to_sta_he_cap(sdata, sband, | |
4197 | elems->he_cap, | |
4198 | elems->he_cap_len, | |
4199 | elems->he_6ghz_capa, | |
4200 | link_sta); | |
4201 | ||
4202 | bss_conf->he_support = link_sta->pub->he_cap.has_he; | |
4203 | if (elems->rsnx && elems->rsnx_len && | |
4204 | (elems->rsnx[0] & WLAN_RSNX_CAPA_PROTECTED_TWT) && | |
4205 | wiphy_ext_feature_isset(local->hw.wiphy, | |
4206 | NL80211_EXT_FEATURE_PROTECTED_TWT)) | |
4207 | bss_conf->twt_protected = true; | |
4208 | else | |
4209 | bss_conf->twt_protected = false; | |
4210 | ||
0143ea09 HD |
4211 | *changed |= ieee80211_recalc_twt_req(sdata, sband, link, |
4212 | link_sta, elems); | |
6911458d JB |
4213 | |
4214 | if (elems->eht_operation && elems->eht_cap && | |
4215 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT)) { | |
4216 | ieee80211_eht_cap_ie_to_sta_eht_cap(sdata, sband, | |
4217 | elems->he_cap, | |
4218 | elems->he_cap_len, | |
4219 | elems->eht_cap, | |
4220 | elems->eht_cap_len, | |
4221 | link_sta); | |
4222 | ||
4223 | bss_conf->eht_support = link_sta->pub->eht_cap.has_eht; | |
aa87cd8b | 4224 | *changed |= BSS_CHANGED_EHT_PUNCTURING; |
6911458d JB |
4225 | } else { |
4226 | bss_conf->eht_support = false; | |
4227 | } | |
4228 | } else { | |
4229 | bss_conf->he_support = false; | |
4230 | bss_conf->twt_requester = false; | |
4231 | bss_conf->twt_protected = false; | |
4232 | bss_conf->eht_support = false; | |
4233 | } | |
4234 | ||
4235 | bss_conf->twt_broadcast = | |
4236 | ieee80211_twt_bcast_support(sdata, bss_conf, sband, link_sta); | |
4237 | ||
4238 | if (bss_conf->he_support) { | |
4239 | bss_conf->he_bss_color.color = | |
4240 | le32_get_bits(elems->he_operation->he_oper_params, | |
4241 | IEEE80211_HE_OPERATION_BSS_COLOR_MASK); | |
4242 | bss_conf->he_bss_color.partial = | |
4243 | le32_get_bits(elems->he_operation->he_oper_params, | |
4244 | IEEE80211_HE_OPERATION_PARTIAL_BSS_COLOR); | |
4245 | bss_conf->he_bss_color.enabled = | |
4246 | !le32_get_bits(elems->he_operation->he_oper_params, | |
4247 | IEEE80211_HE_OPERATION_BSS_COLOR_DISABLED); | |
4248 | ||
4249 | if (bss_conf->he_bss_color.enabled) | |
4250 | *changed |= BSS_CHANGED_HE_BSS_COLOR; | |
4251 | ||
4252 | bss_conf->htc_trig_based_pkt_ext = | |
4253 | le32_get_bits(elems->he_operation->he_oper_params, | |
4254 | IEEE80211_HE_OPERATION_DFLT_PE_DURATION_MASK); | |
4255 | bss_conf->frame_time_rts_th = | |
4256 | le32_get_bits(elems->he_operation->he_oper_params, | |
4257 | IEEE80211_HE_OPERATION_RTS_THRESHOLD_MASK); | |
4258 | ||
4259 | bss_conf->uora_exists = !!elems->uora_element; | |
4260 | if (elems->uora_element) | |
4261 | bss_conf->uora_ocw_range = elems->uora_element[0]; | |
4262 | ||
4263 | ieee80211_he_op_ie_to_bss_conf(&sdata->vif, elems->he_operation); | |
4264 | ieee80211_he_spr_ie_to_bss_conf(&sdata->vif, elems->he_spr); | |
4265 | /* TODO: OPEN: what happens if BSS color disable is set? */ | |
4266 | } | |
4267 | ||
4268 | if (cbss->transmitted_bss) { | |
4269 | bss_conf->nontransmitted = true; | |
4270 | ether_addr_copy(bss_conf->transmitter_bssid, | |
4271 | cbss->transmitted_bss->bssid); | |
4272 | bss_conf->bssid_indicator = cbss->max_bssid_indicator; | |
4273 | bss_conf->bssid_index = cbss->bssid_index; | |
4274 | } | |
4275 | ||
4276 | /* | |
4277 | * Some APs, e.g. Netgear WNDR3700, report invalid HT operation data | |
4278 | * in their association response, so ignore that data for our own | |
4279 | * configuration. If it changed since the last beacon, we'll get the | |
4280 | * next beacon and update then. | |
4281 | */ | |
4282 | ||
4283 | /* | |
4284 | * If an operating mode notification IE is present, override the | |
4285 | * NSS calculation (that would be done in rate_control_rate_init()) | |
4286 | * and use the # of streams from that element. | |
4287 | */ | |
4288 | if (elems->opmode_notif && | |
4289 | !(*elems->opmode_notif & IEEE80211_OPMODE_NOTIF_RX_NSS_TYPE_BF)) { | |
4290 | u8 nss; | |
4291 | ||
4292 | nss = *elems->opmode_notif & IEEE80211_OPMODE_NOTIF_RX_NSS_MASK; | |
4293 | nss >>= IEEE80211_OPMODE_NOTIF_RX_NSS_SHIFT; | |
4294 | nss += 1; | |
4295 | link_sta->pub->rx_nss = nss; | |
4296 | } | |
4297 | ||
4298 | /* | |
4299 | * Always handle WMM once after association regardless | |
4300 | * of the first value the AP uses. Setting -1 here has | |
4301 | * that effect because the AP values is an unsigned | |
4302 | * 4-bit value. | |
4303 | */ | |
4304 | link->u.mgd.wmm_last_param_set = -1; | |
4305 | link->u.mgd.mu_edca_last_param_set = -1; | |
4306 | ||
4307 | if (link->u.mgd.disable_wmm_tracking) { | |
4308 | ieee80211_set_wmm_default(link, false, false); | |
4309 | } else if (!ieee80211_sta_wmm_params(local, link, elems->wmm_param, | |
4310 | elems->wmm_param_len, | |
4311 | elems->mu_edca_param_set)) { | |
4312 | /* still enable QoS since we might have HT/VHT */ | |
4313 | ieee80211_set_wmm_default(link, false, true); | |
4314 | /* disable WMM tracking in this case to disable | |
4315 | * tracking WMM parameter changes in the beacon if | |
4316 | * the parameters weren't actually valid. Doing so | |
4317 | * avoids changing parameters very strangely when | |
4318 | * the AP is going back and forth between valid and | |
4319 | * invalid parameters. | |
4320 | */ | |
4321 | link->u.mgd.disable_wmm_tracking = true; | |
4322 | } | |
4323 | ||
4324 | if (elems->max_idle_period_ie) { | |
4325 | bss_conf->max_idle_period = | |
4326 | le16_to_cpu(elems->max_idle_period_ie->max_idle_period); | |
4327 | bss_conf->protected_keep_alive = | |
4328 | !!(elems->max_idle_period_ie->idle_options & | |
4329 | WLAN_IDLE_OPTIONS_PROTECTED_KEEP_ALIVE); | |
4330 | *changed |= BSS_CHANGED_KEEP_ALIVE; | |
4331 | } else { | |
4332 | bss_conf->max_idle_period = 0; | |
4333 | bss_conf->protected_keep_alive = false; | |
4334 | } | |
4335 | ||
4336 | /* set assoc capability (AID was already set earlier), | |
4337 | * ieee80211_set_associated() will tell the driver */ | |
4338 | bss_conf->assoc_capability = capab_info; | |
4339 | ||
4340 | ret = true; | |
4341 | out: | |
4342 | kfree(elems); | |
4343 | kfree(bss_ies); | |
4344 | return ret; | |
4345 | } | |
4346 | ||
bbe90107 JB |
4347 | static int ieee80211_mgd_setup_link_sta(struct ieee80211_link_data *link, |
4348 | struct sta_info *sta, | |
b18d87f5 | 4349 | struct link_sta_info *link_sta, |
bbe90107 JB |
4350 | struct cfg80211_bss *cbss) |
4351 | { | |
4352 | struct ieee80211_sub_if_data *sdata = link->sdata; | |
4353 | struct ieee80211_local *local = sdata->local; | |
4354 | struct ieee80211_bss *bss = (void *)cbss->priv; | |
4355 | u32 rates = 0, basic_rates = 0; | |
4356 | bool have_higher_than_11mbit = false; | |
4357 | int min_rate = INT_MAX, min_rate_index = -1; | |
4358 | /* this is clearly wrong for MLO but we'll just remove it later */ | |
4359 | int shift = ieee80211_vif_get_shift(&sdata->vif); | |
4360 | struct ieee80211_supported_band *sband; | |
4361 | ||
4362 | memcpy(link_sta->addr, cbss->bssid, ETH_ALEN); | |
b18d87f5 | 4363 | memcpy(link_sta->pub->addr, cbss->bssid, ETH_ALEN); |
bbe90107 JB |
4364 | |
4365 | /* TODO: S1G Basic Rate Set is expressed elsewhere */ | |
4366 | if (cbss->channel->band == NL80211_BAND_S1GHZ) { | |
4367 | ieee80211_s1g_sta_rate_init(sta); | |
4368 | return 0; | |
4369 | } | |
4370 | ||
4371 | sband = local->hw.wiphy->bands[cbss->channel->band]; | |
4372 | ||
4373 | ieee80211_get_rates(sband, bss->supp_rates, bss->supp_rates_len, | |
4374 | &rates, &basic_rates, &have_higher_than_11mbit, | |
4375 | &min_rate, &min_rate_index, shift); | |
4376 | ||
4377 | /* | |
4378 | * This used to be a workaround for basic rates missing | |
4379 | * in the association response frame. Now that we no | |
4380 | * longer use the basic rates from there, it probably | |
4381 | * doesn't happen any more, but keep the workaround so | |
4382 | * in case some *other* APs are buggy in different ways | |
4383 | * we can connect -- with a warning. | |
4384 | * Allow this workaround only in case the AP provided at least | |
4385 | * one rate. | |
4386 | */ | |
4387 | if (min_rate_index < 0) { | |
4388 | link_info(link, "No legacy rates in association response\n"); | |
4389 | return -EINVAL; | |
4390 | } else if (!basic_rates) { | |
4391 | link_info(link, "No basic rates, using min rate instead\n"); | |
4392 | basic_rates = BIT(min_rate_index); | |
4393 | } | |
4394 | ||
4395 | if (rates) | |
b18d87f5 | 4396 | link_sta->pub->supp_rates[cbss->channel->band] = rates; |
bbe90107 JB |
4397 | else |
4398 | link_info(link, "No rates found, keeping mandatory only\n"); | |
4399 | ||
4400 | link->conf->basic_rates = basic_rates; | |
4401 | ||
4402 | /* cf. IEEE 802.11 9.2.12 */ | |
4403 | link->operating_11g_mode = sband->band == NL80211_BAND_2GHZ && | |
4404 | have_higher_than_11mbit; | |
4405 | ||
4406 | return 0; | |
4407 | } | |
4408 | ||
61513162 JB |
4409 | static u8 ieee80211_max_rx_chains(struct ieee80211_link_data *link, |
4410 | struct cfg80211_bss *cbss) | |
f0706e82 | 4411 | { |
61513162 JB |
4412 | struct ieee80211_he_mcs_nss_supp *he_mcs_nss_supp; |
4413 | const struct element *ht_cap_elem, *vht_cap_elem; | |
4414 | const struct cfg80211_bss_ies *ies; | |
4415 | const struct ieee80211_ht_cap *ht_cap; | |
4416 | const struct ieee80211_vht_cap *vht_cap; | |
4417 | const struct ieee80211_he_cap_elem *he_cap; | |
4418 | const struct element *he_cap_elem; | |
4419 | u16 mcs_80_map, mcs_160_map; | |
4420 | int i, mcs_nss_size; | |
4421 | bool support_160; | |
4422 | u8 chains = 1; | |
f0706e82 | 4423 | |
61513162 JB |
4424 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HT) |
4425 | return chains; | |
1d00ce80 | 4426 | |
61513162 JB |
4427 | ht_cap_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_HT_CAPABILITY); |
4428 | if (ht_cap_elem && ht_cap_elem->datalen >= sizeof(*ht_cap)) { | |
4429 | ht_cap = (void *)ht_cap_elem->data; | |
4430 | chains = ieee80211_mcs_to_chains(&ht_cap->mcs); | |
4431 | /* | |
4432 | * TODO: use "Tx Maximum Number Spatial Streams Supported" and | |
4433 | * "Tx Unequal Modulation Supported" fields. | |
4434 | */ | |
4435 | } | |
f0706e82 | 4436 | |
61513162 JB |
4437 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_VHT) |
4438 | return chains; | |
1dd84aa2 | 4439 | |
61513162 JB |
4440 | vht_cap_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_VHT_CAPABILITY); |
4441 | if (vht_cap_elem && vht_cap_elem->datalen >= sizeof(*vht_cap)) { | |
4442 | u8 nss; | |
4443 | u16 tx_mcs_map; | |
05cb9108 | 4444 | |
61513162 JB |
4445 | vht_cap = (void *)vht_cap_elem->data; |
4446 | tx_mcs_map = le16_to_cpu(vht_cap->supp_mcs.tx_mcs_map); | |
4447 | for (nss = 8; nss > 0; nss--) { | |
4448 | if (((tx_mcs_map >> (2 * (nss - 1))) & 3) != | |
4449 | IEEE80211_VHT_MCS_NOT_SUPPORTED) | |
4450 | break; | |
4451 | } | |
4452 | /* TODO: use "Tx Highest Supported Long GI Data Rate" field? */ | |
4453 | chains = max(chains, nss); | |
05cb9108 JB |
4454 | } |
4455 | ||
61513162 JB |
4456 | if (link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_HE) |
4457 | return chains; | |
f0706e82 | 4458 | |
61513162 JB |
4459 | ies = rcu_dereference(cbss->ies); |
4460 | he_cap_elem = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, | |
4461 | ies->data, ies->len); | |
f0706e82 | 4462 | |
61513162 JB |
4463 | if (!he_cap_elem || he_cap_elem->datalen < sizeof(*he_cap)) |
4464 | return chains; | |
35d865af | 4465 | |
61513162 JB |
4466 | /* skip one byte ext_tag_id */ |
4467 | he_cap = (void *)(he_cap_elem->data + 1); | |
4468 | mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap); | |
35d865af | 4469 | |
61513162 JB |
4470 | /* invalid HE IE */ |
4471 | if (he_cap_elem->datalen < 1 + mcs_nss_size + sizeof(*he_cap)) | |
4472 | return chains; | |
5d24828d | 4473 | |
61513162 JB |
4474 | /* mcs_nss is right after he_cap info */ |
4475 | he_mcs_nss_supp = (void *)(he_cap + 1); | |
35d865af | 4476 | |
61513162 | 4477 | mcs_80_map = le16_to_cpu(he_mcs_nss_supp->tx_mcs_80); |
5d24828d | 4478 | |
61513162 JB |
4479 | for (i = 7; i >= 0; i--) { |
4480 | u8 mcs_80 = mcs_80_map >> (2 * i) & 3; | |
4481 | ||
4482 | if (mcs_80 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
4483 | chains = max_t(u8, chains, i + 1); | |
4484 | break; | |
4485 | } | |
35d865af JB |
4486 | } |
4487 | ||
61513162 JB |
4488 | support_160 = he_cap->phy_cap_info[0] & |
4489 | IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; | |
4490 | ||
4491 | if (!support_160) | |
4492 | return chains; | |
4493 | ||
4494 | mcs_160_map = le16_to_cpu(he_mcs_nss_supp->tx_mcs_160); | |
4495 | for (i = 7; i >= 0; i--) { | |
4496 | u8 mcs_160 = mcs_160_map >> (2 * i) & 3; | |
4497 | ||
4498 | if (mcs_160 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { | |
4499 | chains = max_t(u8, chains, i + 1); | |
4500 | break; | |
4501 | } | |
30eb1dc2 JB |
4502 | } |
4503 | ||
61513162 JB |
4504 | return chains; |
4505 | } | |
4506 | ||
4507 | static bool | |
4508 | ieee80211_verify_peer_he_mcs_support(struct ieee80211_sub_if_data *sdata, | |
4509 | const struct cfg80211_bss_ies *ies, | |
4510 | const struct ieee80211_he_operation *he_op) | |
4511 | { | |
4512 | const struct element *he_cap_elem; | |
4513 | const struct ieee80211_he_cap_elem *he_cap; | |
4514 | struct ieee80211_he_mcs_nss_supp *he_mcs_nss_supp; | |
4515 | u16 mcs_80_map_tx, mcs_80_map_rx; | |
4516 | u16 ap_min_req_set; | |
4517 | int mcs_nss_size; | |
4518 | int nss; | |
4519 | ||
4520 | he_cap_elem = cfg80211_find_ext_elem(WLAN_EID_EXT_HE_CAPABILITY, | |
4521 | ies->data, ies->len); | |
4522 | ||
092197f1 JP |
4523 | if (!he_cap_elem) |
4524 | return false; | |
4525 | ||
61513162 | 4526 | /* invalid HE IE */ |
092197f1 | 4527 | if (he_cap_elem->datalen < 1 + sizeof(*he_cap)) { |
30eb1dc2 | 4528 | sdata_info(sdata, |
61513162 JB |
4529 | "Invalid HE elem, Disable HE\n"); |
4530 | return false; | |
30eb1dc2 JB |
4531 | } |
4532 | ||
61513162 JB |
4533 | /* skip one byte ext_tag_id */ |
4534 | he_cap = (void *)(he_cap_elem->data + 1); | |
4535 | mcs_nss_size = ieee80211_he_mcs_nss_size(he_cap); | |
4536 | ||
4537 | /* invalid HE IE */ | |
4538 | if (he_cap_elem->datalen < 1 + sizeof(*he_cap) + mcs_nss_size) { | |
57fa5e85 | 4539 | sdata_info(sdata, |
61513162 JB |
4540 | "Invalid HE elem with nss size, Disable HE\n"); |
4541 | return false; | |
57fa5e85 JB |
4542 | } |
4543 | ||
61513162 JB |
4544 | /* mcs_nss is right after he_cap info */ |
4545 | he_mcs_nss_supp = (void *)(he_cap + 1); | |
05e5e883 | 4546 | |
61513162 JB |
4547 | mcs_80_map_tx = le16_to_cpu(he_mcs_nss_supp->tx_mcs_80); |
4548 | mcs_80_map_rx = le16_to_cpu(he_mcs_nss_supp->rx_mcs_80); | |
f709fc69 | 4549 | |
61513162 JB |
4550 | /* P802.11-REVme/D0.3 |
4551 | * 27.1.1 Introduction to the HE PHY | |
4552 | * ... | |
4553 | * An HE STA shall support the following features: | |
4554 | * ... | |
4555 | * Single spatial stream HE-MCSs 0 to 7 (transmit and receive) in all | |
4556 | * supported channel widths for HE SU PPDUs | |
4557 | */ | |
4558 | if ((mcs_80_map_tx & 0x3) == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
4559 | (mcs_80_map_rx & 0x3) == IEEE80211_HE_MCS_NOT_SUPPORTED) { | |
41cbb0f5 | 4560 | sdata_info(sdata, |
61513162 JB |
4561 | "Missing mandatory rates for 1 Nss, rx 0x%x, tx 0x%x, disable HE\n", |
4562 | mcs_80_map_tx, mcs_80_map_rx); | |
4563 | return false; | |
41cbb0f5 LC |
4564 | } |
4565 | ||
61513162 JB |
4566 | if (!he_op) |
4567 | return true; | |
64f68e5d | 4568 | |
61513162 | 4569 | ap_min_req_set = le16_to_cpu(he_op->he_mcs_nss_set); |
818255ea | 4570 | |
61513162 JB |
4571 | /* |
4572 | * Apparently iPhone 13 (at least iOS version 15.3.1) sets this to all | |
4573 | * zeroes, which is nonsense, and completely inconsistent with itself | |
4574 | * (it doesn't have 8 streams). Accept the settings in this case anyway. | |
4575 | */ | |
4576 | if (!ap_min_req_set) | |
4577 | return true; | |
41cbb0f5 | 4578 | |
61513162 JB |
4579 | /* make sure the AP is consistent with itself |
4580 | * | |
4581 | * P802.11-REVme/D0.3 | |
4582 | * 26.17.1 Basic HE BSS operation | |
4583 | * | |
4584 | * A STA that is operating in an HE BSS shall be able to receive and | |
4585 | * transmit at each of the <HE-MCS, NSS> tuple values indicated by the | |
4586 | * Basic HE-MCS And NSS Set field of the HE Operation parameter of the | |
4587 | * MLME-START.request primitive and shall be able to receive at each of | |
4588 | * the <HE-MCS, NSS> tuple values indicated by the Supported HE-MCS and | |
4589 | * NSS Set field in the HE Capabilities parameter of the MLMESTART.request | |
4590 | * primitive | |
4591 | */ | |
4592 | for (nss = 8; nss > 0; nss--) { | |
4593 | u8 ap_op_val = (ap_min_req_set >> (2 * (nss - 1))) & 3; | |
4594 | u8 ap_rx_val; | |
4595 | u8 ap_tx_val; | |
d46b4ab8 | 4596 | |
61513162 JB |
4597 | if (ap_op_val == IEEE80211_HE_MCS_NOT_SUPPORTED) |
4598 | continue; | |
a1de6407 | 4599 | |
61513162 JB |
4600 | ap_rx_val = (mcs_80_map_rx >> (2 * (nss - 1))) & 3; |
4601 | ap_tx_val = (mcs_80_map_tx >> (2 * (nss - 1))) & 3; | |
a1de6407 | 4602 | |
61513162 JB |
4603 | if (ap_rx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || |
4604 | ap_tx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
4605 | ap_rx_val < ap_op_val || ap_tx_val < ap_op_val) { | |
4606 | sdata_info(sdata, | |
4607 | "Invalid rates for %d Nss, rx %d, tx %d oper %d, disable HE\n", | |
4608 | nss, ap_rx_val, ap_rx_val, ap_op_val); | |
4609 | return false; | |
a1de6407 | 4610 | } |
41cbb0f5 LC |
4611 | } |
4612 | ||
61513162 JB |
4613 | return true; |
4614 | } | |
41cbb0f5 | 4615 | |
61513162 JB |
4616 | static bool |
4617 | ieee80211_verify_sta_he_mcs_support(struct ieee80211_sub_if_data *sdata, | |
4618 | struct ieee80211_supported_band *sband, | |
4619 | const struct ieee80211_he_operation *he_op) | |
4620 | { | |
4621 | const struct ieee80211_sta_he_cap *sta_he_cap = | |
1ec7291e | 4622 | ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif); |
61513162 JB |
4623 | u16 ap_min_req_set; |
4624 | int i; | |
41cbb0f5 | 4625 | |
61513162 JB |
4626 | if (!sta_he_cap || !he_op) |
4627 | return false; | |
41cbb0f5 | 4628 | |
61513162 | 4629 | ap_min_req_set = le16_to_cpu(he_op->he_mcs_nss_set); |
78ac51f8 | 4630 | |
30eb1dc2 | 4631 | /* |
61513162 JB |
4632 | * Apparently iPhone 13 (at least iOS version 15.3.1) sets this to all |
4633 | * zeroes, which is nonsense, and completely inconsistent with itself | |
4634 | * (it doesn't have 8 streams). Accept the settings in this case anyway. | |
30eb1dc2 | 4635 | */ |
61513162 JB |
4636 | if (!ap_min_req_set) |
4637 | return true; | |
1128958d | 4638 | |
61513162 JB |
4639 | /* Need to go over for 80MHz, 160MHz and for 80+80 */ |
4640 | for (i = 0; i < 3; i++) { | |
4641 | const struct ieee80211_he_mcs_nss_supp *sta_mcs_nss_supp = | |
4642 | &sta_he_cap->he_mcs_nss_supp; | |
4643 | u16 sta_mcs_map_rx = | |
4644 | le16_to_cpu(((__le16 *)sta_mcs_nss_supp)[2 * i]); | |
4645 | u16 sta_mcs_map_tx = | |
4646 | le16_to_cpu(((__le16 *)sta_mcs_nss_supp)[2 * i + 1]); | |
bee7f586 | 4647 | u8 nss; |
61513162 | 4648 | bool verified = true; |
bee7f586 | 4649 | |
61513162 JB |
4650 | /* |
4651 | * For each band there is a maximum of 8 spatial streams | |
4652 | * possible. Each of the sta_mcs_map_* is a 16-bit struct built | |
4653 | * of 2 bits per NSS (1-8), with the values defined in enum | |
4654 | * ieee80211_he_mcs_support. Need to make sure STA TX and RX | |
4655 | * capabilities aren't less than the AP's minimum requirements | |
4656 | * for this HE BSS per SS. | |
4657 | * It is enough to find one such band that meets the reqs. | |
4658 | */ | |
4659 | for (nss = 8; nss > 0; nss--) { | |
4660 | u8 sta_rx_val = (sta_mcs_map_rx >> (2 * (nss - 1))) & 3; | |
4661 | u8 sta_tx_val = (sta_mcs_map_tx >> (2 * (nss - 1))) & 3; | |
4662 | u8 ap_val = (ap_min_req_set >> (2 * (nss - 1))) & 3; | |
f0706e82 | 4663 | |
61513162 JB |
4664 | if (ap_val == IEEE80211_HE_MCS_NOT_SUPPORTED) |
4665 | continue; | |
5394af4d | 4666 | |
61513162 JB |
4667 | /* |
4668 | * Make sure the HE AP doesn't require MCSs that aren't | |
4669 | * supported by the client as required by spec | |
4670 | * | |
4671 | * P802.11-REVme/D0.3 | |
4672 | * 26.17.1 Basic HE BSS operation | |
4673 | * | |
4674 | * An HE STA shall not attempt to join * (MLME-JOIN.request primitive) | |
4675 | * a BSS, unless it supports (i.e., is able to both transmit and | |
4676 | * receive using) all of the <HE-MCS, NSS> tuples in the basic | |
4677 | * HE-MCS and NSS set. | |
4678 | */ | |
4679 | if (sta_rx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
4680 | sta_tx_val == IEEE80211_HE_MCS_NOT_SUPPORTED || | |
4681 | (ap_val > sta_rx_val) || (ap_val > sta_tx_val)) { | |
4682 | verified = false; | |
4683 | break; | |
4684 | } | |
4685 | } | |
ddf4ac53 | 4686 | |
61513162 JB |
4687 | if (verified) |
4688 | return true; | |
c8987876 JB |
4689 | } |
4690 | ||
61513162 JB |
4691 | /* If here, STA doesn't meet AP's HE min requirements */ |
4692 | return false; | |
4693 | } | |
ddf4ac53 | 4694 | |
61513162 JB |
4695 | static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata, |
4696 | struct ieee80211_link_data *link, | |
7781f0d8 JB |
4697 | struct cfg80211_bss *cbss, |
4698 | ieee80211_conn_flags_t *conn_flags) | |
61513162 JB |
4699 | { |
4700 | struct ieee80211_local *local = sdata->local; | |
4701 | const struct ieee80211_ht_cap *ht_cap = NULL; | |
4702 | const struct ieee80211_ht_operation *ht_oper = NULL; | |
4703 | const struct ieee80211_vht_operation *vht_oper = NULL; | |
4704 | const struct ieee80211_he_operation *he_oper = NULL; | |
4705 | const struct ieee80211_eht_operation *eht_oper = NULL; | |
4706 | const struct ieee80211_s1g_oper_ie *s1g_oper = NULL; | |
4707 | struct ieee80211_supported_band *sband; | |
4708 | struct cfg80211_chan_def chandef; | |
4709 | bool is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; | |
4710 | bool is_5ghz = cbss->channel->band == NL80211_BAND_5GHZ; | |
4711 | struct ieee80211_bss *bss = (void *)cbss->priv; | |
ea5cba26 | 4712 | struct ieee80211_elems_parse_params parse_params = { |
ea5cba26 JB |
4713 | .link_id = -1, |
4714 | .from_ap = true, | |
4715 | }; | |
61513162 JB |
4716 | struct ieee802_11_elems *elems; |
4717 | const struct cfg80211_bss_ies *ies; | |
4718 | int ret; | |
4719 | u32 i; | |
4720 | bool have_80mhz; | |
f2176d72 | 4721 | |
61513162 JB |
4722 | rcu_read_lock(); |
4723 | ||
4724 | ies = rcu_dereference(cbss->ies); | |
ea5cba26 JB |
4725 | parse_params.start = ies->data; |
4726 | parse_params.len = ies->len; | |
4727 | elems = ieee802_11_parse_elems_full(&parse_params); | |
61513162 JB |
4728 | if (!elems) { |
4729 | rcu_read_unlock(); | |
4730 | return -ENOMEM; | |
2ed77ea6 | 4731 | } |
f0706e82 | 4732 | |
61513162 JB |
4733 | sband = local->hw.wiphy->bands[cbss->channel->band]; |
4734 | ||
7781f0d8 JB |
4735 | *conn_flags &= ~(IEEE80211_CONN_DISABLE_40MHZ | |
4736 | IEEE80211_CONN_DISABLE_80P80MHZ | | |
4737 | IEEE80211_CONN_DISABLE_160MHZ); | |
61513162 JB |
4738 | |
4739 | /* disable HT/VHT/HE if we don't support them */ | |
4740 | if (!sband->ht_cap.ht_supported && !is_6ghz) { | |
4741 | mlme_dbg(sdata, "HT not supported, disabling HT/VHT/HE/EHT\n"); | |
7781f0d8 JB |
4742 | *conn_flags |= IEEE80211_CONN_DISABLE_HT; |
4743 | *conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
4744 | *conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
4745 | *conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
e38a017b AS |
4746 | } |
4747 | ||
61513162 JB |
4748 | if (!sband->vht_cap.vht_supported && is_5ghz) { |
4749 | mlme_dbg(sdata, "VHT not supported, disabling VHT/HE/EHT\n"); | |
7781f0d8 JB |
4750 | *conn_flags |= IEEE80211_CONN_DISABLE_VHT; |
4751 | *conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
4752 | *conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
61513162 | 4753 | } |
f0706e82 | 4754 | |
1ec7291e | 4755 | if (!ieee80211_get_he_iftype_cap_vif(sband, &sdata->vif)) { |
61513162 | 4756 | mlme_dbg(sdata, "HE not supported, disabling HE and EHT\n"); |
7781f0d8 JB |
4757 | *conn_flags |= IEEE80211_CONN_DISABLE_HE; |
4758 | *conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
61513162 | 4759 | } |
d524215f | 4760 | |
1ec7291e | 4761 | if (!ieee80211_get_eht_iftype_cap_vif(sband, &sdata->vif)) { |
61513162 | 4762 | mlme_dbg(sdata, "EHT not supported, disabling EHT\n"); |
7781f0d8 | 4763 | *conn_flags |= IEEE80211_CONN_DISABLE_EHT; |
61513162 | 4764 | } |
15b7b062 | 4765 | |
7781f0d8 | 4766 | if (!(*conn_flags & IEEE80211_CONN_DISABLE_HT) && !is_6ghz) { |
61513162 JB |
4767 | ht_oper = elems->ht_operation; |
4768 | ht_cap = elems->ht_cap_elem; | |
f0706e82 | 4769 | |
61513162 | 4770 | if (!ht_cap) { |
7781f0d8 | 4771 | *conn_flags |= IEEE80211_CONN_DISABLE_HT; |
61513162 JB |
4772 | ht_oper = NULL; |
4773 | } | |
4774 | } | |
66e67e41 | 4775 | |
7781f0d8 | 4776 | if (!(*conn_flags & IEEE80211_CONN_DISABLE_VHT) && !is_6ghz) { |
61513162 JB |
4777 | vht_oper = elems->vht_operation; |
4778 | if (vht_oper && !ht_oper) { | |
4779 | vht_oper = NULL; | |
4780 | sdata_info(sdata, | |
4781 | "AP advertised VHT without HT, disabling HT/VHT/HE\n"); | |
7781f0d8 JB |
4782 | *conn_flags |= IEEE80211_CONN_DISABLE_HT; |
4783 | *conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
4784 | *conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
4785 | *conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
61513162 | 4786 | } |
66e67e41 | 4787 | |
61513162 | 4788 | if (!elems->vht_cap_elem) { |
7781f0d8 | 4789 | *conn_flags |= IEEE80211_CONN_DISABLE_VHT; |
61513162 JB |
4790 | vht_oper = NULL; |
4791 | } | |
4792 | } | |
1d00ce80 | 4793 | |
7781f0d8 | 4794 | if (!(*conn_flags & IEEE80211_CONN_DISABLE_HE)) { |
61513162 | 4795 | he_oper = elems->he_operation; |
66e67e41 | 4796 | |
7781f0d8 | 4797 | if (link && is_6ghz) { |
61513162 JB |
4798 | struct ieee80211_bss_conf *bss_conf; |
4799 | u8 j = 0; | |
1d00ce80 | 4800 | |
61513162 | 4801 | bss_conf = link->conf; |
66e67e41 | 4802 | |
61513162 JB |
4803 | if (elems->pwr_constr_elem) |
4804 | bss_conf->pwr_reduction = *elems->pwr_constr_elem; | |
66e67e41 | 4805 | |
61513162 JB |
4806 | BUILD_BUG_ON(ARRAY_SIZE(bss_conf->tx_pwr_env) != |
4807 | ARRAY_SIZE(elems->tx_pwr_env)); | |
4808 | ||
4809 | for (i = 0; i < elems->tx_pwr_env_num; i++) { | |
4810 | if (elems->tx_pwr_env_len[i] > | |
4811 | sizeof(bss_conf->tx_pwr_env[j])) | |
4812 | continue; | |
4813 | ||
4814 | bss_conf->tx_pwr_env_num++; | |
4815 | memcpy(&bss_conf->tx_pwr_env[j], elems->tx_pwr_env[i], | |
4816 | elems->tx_pwr_env_len[i]); | |
4817 | j++; | |
4818 | } | |
4819 | } | |
4820 | ||
4821 | if (!ieee80211_verify_peer_he_mcs_support(sdata, ies, he_oper) || | |
4822 | !ieee80211_verify_sta_he_mcs_support(sdata, sband, he_oper)) | |
7781f0d8 JB |
4823 | *conn_flags |= IEEE80211_CONN_DISABLE_HE | |
4824 | IEEE80211_CONN_DISABLE_EHT; | |
1d00ce80 | 4825 | } |
66e67e41 | 4826 | |
15fae341 | 4827 | /* |
61513162 JB |
4828 | * EHT requires HE to be supported as well. Specifically for 6 GHz |
4829 | * channels, the operation channel information can only be deduced from | |
4830 | * both the 6 GHz operation information (from the HE operation IE) and | |
4831 | * EHT operation. | |
15fae341 | 4832 | */ |
7781f0d8 | 4833 | if (!(*conn_flags & |
61513162 JB |
4834 | (IEEE80211_CONN_DISABLE_HE | |
4835 | IEEE80211_CONN_DISABLE_EHT)) && | |
4836 | he_oper) { | |
4837 | const struct cfg80211_bss_ies *cbss_ies; | |
ce2bb3b6 | 4838 | const struct element *eht_ml_elem; |
61513162 | 4839 | const u8 *eht_oper_ie; |
66e67e41 | 4840 | |
61513162 JB |
4841 | cbss_ies = rcu_dereference(cbss->ies); |
4842 | eht_oper_ie = cfg80211_find_ext_ie(WLAN_EID_EXT_EHT_OPERATION, | |
4843 | cbss_ies->data, cbss_ies->len); | |
4844 | if (eht_oper_ie && eht_oper_ie[1] >= | |
4845 | 1 + sizeof(struct ieee80211_eht_operation)) | |
4846 | eht_oper = (void *)(eht_oper_ie + 3); | |
4847 | else | |
4848 | eht_oper = NULL; | |
ce2bb3b6 EG |
4849 | |
4850 | eht_ml_elem = cfg80211_find_ext_elem(WLAN_EID_EXT_EHT_MULTI_LINK, | |
4851 | cbss_ies->data, cbss_ies->len); | |
4852 | ||
4853 | /* data + 1 / datalen - 1 since it's an extended element */ | |
4854 | if (eht_ml_elem && | |
4855 | ieee80211_mle_size_ok(eht_ml_elem->data + 1, | |
29c6e2dc | 4856 | eht_ml_elem->datalen - 1)) { |
ce2bb3b6 EG |
4857 | sdata->vif.cfg.eml_cap = |
4858 | ieee80211_mle_get_eml_cap(eht_ml_elem->data + 1); | |
29c6e2dc EG |
4859 | sdata->vif.cfg.eml_med_sync_delay = |
4860 | ieee80211_mle_get_eml_med_sync_delay(eht_ml_elem->data + 1); | |
4861 | } | |
61513162 | 4862 | } |
39404fee | 4863 | |
61513162 JB |
4864 | /* Allow VHT if at least one channel on the sband supports 80 MHz */ |
4865 | have_80mhz = false; | |
4866 | for (i = 0; i < sband->n_channels; i++) { | |
4867 | if (sband->channels[i].flags & (IEEE80211_CHAN_DISABLED | | |
4868 | IEEE80211_CHAN_NO_80MHZ)) | |
4869 | continue; | |
66e67e41 | 4870 | |
6911458d JB |
4871 | have_80mhz = true; |
4872 | break; | |
61513162 | 4873 | } |
78ac51f8 | 4874 | |
6911458d JB |
4875 | if (!have_80mhz) { |
4876 | sdata_info(sdata, "80 MHz not supported, disabling VHT\n"); | |
4877 | *conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
1ad22fb5 T |
4878 | } |
4879 | ||
6911458d JB |
4880 | if (sband->band == NL80211_BAND_S1GHZ) { |
4881 | s1g_oper = elems->s1g_oper; | |
4882 | if (!s1g_oper) | |
4883 | sdata_info(sdata, | |
4884 | "AP missing S1G operation element?\n"); | |
4885 | } | |
92778180 | 4886 | |
6911458d JB |
4887 | *conn_flags |= |
4888 | ieee80211_determine_chantype(sdata, link, *conn_flags, | |
4889 | sband, | |
4890 | cbss->channel, | |
4891 | bss->vht_cap_info, | |
4892 | ht_oper, vht_oper, | |
4893 | he_oper, eht_oper, | |
4894 | s1g_oper, | |
4895 | &chandef, false); | |
b291ba11 | 4896 | |
6911458d JB |
4897 | if (link) |
4898 | link->needed_rx_chains = | |
4899 | min(ieee80211_max_rx_chains(link, cbss), | |
4900 | local->rx_chains); | |
d91f36db | 4901 | |
6911458d JB |
4902 | rcu_read_unlock(); |
4903 | /* the element data was RCU protected so no longer valid anyway */ | |
4904 | kfree(elems); | |
4905 | elems = NULL; | |
90d13e8f | 4906 | |
6911458d JB |
4907 | if (*conn_flags & IEEE80211_CONN_DISABLE_HE && is_6ghz) { |
4908 | sdata_info(sdata, "Rejecting non-HE 6/7 GHz connection"); | |
4909 | return -EINVAL; | |
a97b77b9 | 4910 | } |
7a5158ef | 4911 | |
6911458d JB |
4912 | if (!link) |
4913 | return 0; | |
0c21e632 | 4914 | |
6911458d JB |
4915 | /* will change later if needed */ |
4916 | link->smps_mode = IEEE80211_SMPS_OFF; | |
2ecc3905 | 4917 | |
6911458d JB |
4918 | mutex_lock(&local->mtx); |
4919 | /* | |
4920 | * If this fails (possibly due to channel context sharing | |
4921 | * on incompatible channels, e.g. 80+80 and 160 sharing the | |
4922 | * same control channel) try to use a smaller bandwidth. | |
4923 | */ | |
4924 | ret = ieee80211_link_use_channel(link, &chandef, | |
4925 | IEEE80211_CHANCTX_SHARED); | |
30196673 | 4926 | |
6911458d JB |
4927 | /* don't downgrade for 5 and 10 MHz channels, though. */ |
4928 | if (chandef.width == NL80211_CHAN_WIDTH_5 || | |
4929 | chandef.width == NL80211_CHAN_WIDTH_10) | |
4930 | goto out; | |
7d25745d | 4931 | |
6911458d JB |
4932 | while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) { |
4933 | *conn_flags |= | |
4934 | ieee80211_chandef_downgrade(&chandef); | |
4935 | ret = ieee80211_link_use_channel(link, &chandef, | |
4936 | IEEE80211_CHANCTX_SHARED); | |
61513162 | 4937 | } |
6911458d JB |
4938 | out: |
4939 | mutex_unlock(&local->mtx); | |
4940 | return ret; | |
4941 | } | |
d70b7616 | 4942 | |
189a0c52 JB |
4943 | static bool ieee80211_get_dtim(const struct cfg80211_bss_ies *ies, |
4944 | u8 *dtim_count, u8 *dtim_period) | |
4945 | { | |
4946 | const u8 *tim_ie = cfg80211_find_ie(WLAN_EID_TIM, ies->data, ies->len); | |
4947 | const u8 *idx_ie = cfg80211_find_ie(WLAN_EID_MULTI_BSSID_IDX, ies->data, | |
4948 | ies->len); | |
4949 | const struct ieee80211_tim_ie *tim = NULL; | |
4950 | const struct ieee80211_bssid_index *idx; | |
4951 | bool valid = tim_ie && tim_ie[1] >= 2; | |
4952 | ||
4953 | if (valid) | |
4954 | tim = (void *)(tim_ie + 2); | |
4955 | ||
4956 | if (dtim_count) | |
4957 | *dtim_count = valid ? tim->dtim_count : 0; | |
4958 | ||
4959 | if (dtim_period) | |
4960 | *dtim_period = valid ? tim->dtim_period : 0; | |
4961 | ||
4962 | /* Check if value is overridden by non-transmitted profile */ | |
4963 | if (!idx_ie || idx_ie[1] < 3) | |
4964 | return valid; | |
4965 | ||
4966 | idx = (void *)(idx_ie + 2); | |
4967 | ||
4968 | if (dtim_count) | |
4969 | *dtim_count = idx->dtim_count; | |
4970 | ||
4971 | if (dtim_period) | |
4972 | *dtim_period = idx->dtim_period; | |
4973 | ||
4974 | return true; | |
4975 | } | |
4976 | ||
6911458d | 4977 | static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, |
6911458d JB |
4978 | struct ieee80211_mgmt *mgmt, |
4979 | struct ieee802_11_elems *elems, | |
4980 | const u8 *elem_start, unsigned int elem_len) | |
4981 | { | |
4982 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
81151ce4 | 4983 | struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; |
6911458d | 4984 | struct ieee80211_local *local = sdata->local; |
81151ce4 | 4985 | unsigned int link_id; |
6911458d | 4986 | struct sta_info *sta; |
81151ce4 | 4987 | u64 changed[IEEE80211_MLD_MAX_NUM_LINKS] = {}; |
6d543b34 | 4988 | u16 valid_links = 0, dormant_links = 0; |
6911458d | 4989 | int err; |
7d25745d | 4990 | |
6911458d | 4991 | mutex_lock(&sdata->local->sta_mtx); |
c65dd147 | 4992 | /* |
6911458d JB |
4993 | * station info was already allocated and inserted before |
4994 | * the association and should be available to us | |
c65dd147 | 4995 | */ |
81151ce4 | 4996 | sta = sta_info_get(sdata, assoc_data->ap_addr); |
6911458d JB |
4997 | if (WARN_ON(!sta)) |
4998 | goto out_err; | |
ef429dad | 4999 | |
f1871abd | 5000 | if (ieee80211_vif_is_mld(&sdata->vif)) { |
81151ce4 JB |
5001 | for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { |
5002 | if (!assoc_data->link[link_id].bss) | |
5003 | continue; | |
81151ce4 | 5004 | |
6d543b34 IP |
5005 | valid_links |= BIT(link_id); |
5006 | if (assoc_data->link[link_id].disabled) { | |
5007 | dormant_links |= BIT(link_id); | |
5008 | } else if (link_id != assoc_data->assoc_link_id) { | |
81151ce4 JB |
5009 | err = ieee80211_sta_allocate_link(sta, link_id); |
5010 | if (err) | |
5011 | goto out_err; | |
5012 | } | |
5013 | } | |
5014 | ||
6d543b34 | 5015 | ieee80211_vif_set_links(sdata, valid_links, dormant_links); |
81151ce4 JB |
5016 | } |
5017 | ||
5018 | for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { | |
cb04b5ef | 5019 | struct cfg80211_bss *cbss = assoc_data->link[link_id].bss; |
81151ce4 JB |
5020 | struct ieee80211_link_data *link; |
5021 | struct link_sta_info *link_sta; | |
5022 | ||
6d543b34 | 5023 | if (!cbss || assoc_data->link[link_id].disabled) |
81151ce4 JB |
5024 | continue; |
5025 | ||
5026 | link = sdata_dereference(sdata->link[link_id], sdata); | |
5027 | if (WARN_ON(!link)) | |
5028 | goto out_err; | |
5029 | ||
f1871abd | 5030 | if (ieee80211_vif_is_mld(&sdata->vif)) |
81151ce4 | 5031 | link_info(link, |
7a693ce0 | 5032 | "local address %pM, AP link address %pM%s\n", |
81151ce4 | 5033 | link->conf->addr, |
7a693ce0 JB |
5034 | assoc_data->link[link_id].bss->bssid, |
5035 | link_id == assoc_data->assoc_link_id ? | |
5036 | " (assoc)" : ""); | |
81151ce4 JB |
5037 | |
5038 | link_sta = rcu_dereference_protected(sta->link[link_id], | |
5039 | lockdep_is_held(&local->sta_mtx)); | |
5040 | if (WARN_ON(!link_sta)) | |
5041 | goto out_err; | |
5042 | ||
cb04b5ef | 5043 | if (!link->u.mgd.have_beacon) { |
189a0c52 JB |
5044 | const struct cfg80211_bss_ies *ies; |
5045 | ||
5046 | rcu_read_lock(); | |
cb04b5ef JB |
5047 | ies = rcu_dereference(cbss->beacon_ies); |
5048 | if (ies) | |
5049 | link->u.mgd.have_beacon = true; | |
5050 | else | |
5051 | ies = rcu_dereference(cbss->ies); | |
189a0c52 JB |
5052 | ieee80211_get_dtim(ies, |
5053 | &link->conf->sync_dtim_count, | |
5054 | &link->u.mgd.dtim_period); | |
189a0c52 JB |
5055 | link->conf->beacon_int = cbss->beacon_interval; |
5056 | rcu_read_unlock(); | |
cb04b5ef | 5057 | } |
189a0c52 | 5058 | |
cb04b5ef JB |
5059 | link->conf->dtim_period = link->u.mgd.dtim_period ?: 1; |
5060 | ||
5061 | if (link_id != assoc_data->assoc_link_id) { | |
189a0c52 | 5062 | err = ieee80211_prep_channel(sdata, link, cbss, |
81151ce4 | 5063 | &link->u.mgd.conn_flags); |
efe9c2bf JB |
5064 | if (err) { |
5065 | link_info(link, "prep_channel failed\n"); | |
81151ce4 | 5066 | goto out_err; |
efe9c2bf | 5067 | } |
81151ce4 JB |
5068 | } |
5069 | ||
b18d87f5 | 5070 | err = ieee80211_mgd_setup_link_sta(link, sta, link_sta, |
81151ce4 JB |
5071 | assoc_data->link[link_id].bss); |
5072 | if (err) | |
5073 | goto out_err; | |
5074 | ||
5075 | if (!ieee80211_assoc_config_link(link, link_sta, | |
5076 | assoc_data->link[link_id].bss, | |
5077 | mgmt, elem_start, elem_len, | |
5078 | &changed[link_id])) | |
5079 | goto out_err; | |
5080 | ||
c2d052a3 IP |
5081 | if (assoc_data->link[link_id].status != WLAN_STATUS_SUCCESS) { |
5082 | valid_links &= ~BIT(link_id); | |
5083 | ieee80211_sta_remove_link(sta, link_id); | |
5084 | continue; | |
5085 | } | |
5086 | ||
81151ce4 JB |
5087 | if (link_id != assoc_data->assoc_link_id) { |
5088 | err = ieee80211_sta_activate_link(sta, link_id); | |
5089 | if (err) | |
5090 | goto out_err; | |
5091 | } | |
5092 | } | |
482a9c74 | 5093 | |
c2d052a3 | 5094 | /* links might have changed due to rejected ones, set them again */ |
6d543b34 | 5095 | ieee80211_vif_set_links(sdata, valid_links, dormant_links); |
c2d052a3 | 5096 | |
61513162 | 5097 | rate_control_rate_init(sta); |
482a9c74 | 5098 | |
61513162 JB |
5099 | if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED) { |
5100 | set_sta_flag(sta, WLAN_STA_MFP); | |
5101 | sta->sta.mfp = true; | |
5102 | } else { | |
5103 | sta->sta.mfp = false; | |
c65dd147 EG |
5104 | } |
5105 | ||
175ad2ec JB |
5106 | ieee80211_sta_set_max_amsdu_subframes(sta, elems->ext_capab, |
5107 | elems->ext_capab_len); | |
5108 | ||
61513162 JB |
5109 | sta->sta.wme = (elems->wmm_param || elems->s1g_capab) && |
5110 | local->hw.queues >= IEEE80211_NUM_ACS; | |
5111 | ||
5112 | err = sta_info_move_state(sta, IEEE80211_STA_ASSOC); | |
5113 | if (!err && !(ifmgd->flags & IEEE80211_STA_CONTROL_PORT)) | |
5114 | err = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); | |
5115 | if (err) { | |
5116 | sdata_info(sdata, | |
5117 | "failed to move station %pM to desired state\n", | |
5118 | sta->sta.addr); | |
5119 | WARN_ON(__sta_info_destroy(sta)); | |
6911458d | 5120 | goto out_err; |
50c4afb9 | 5121 | } |
09a740ce | 5122 | |
61513162 JB |
5123 | if (sdata->wdev.use_4addr) |
5124 | drv_sta_set_4addr(local, sdata, &sta->sta, true); | |
f0706e82 | 5125 | |
61513162 | 5126 | mutex_unlock(&sdata->local->sta_mtx); |
bee7f586 | 5127 | |
81151ce4 | 5128 | ieee80211_set_associated(sdata, assoc_data, changed); |
f0706e82 | 5129 | |
61513162 JB |
5130 | /* |
5131 | * If we're using 4-addr mode, let the AP know that we're | |
5132 | * doing so, so that it can create the STA VLAN on its side | |
5133 | */ | |
5134 | if (ifmgd->use_4addr) | |
5135 | ieee80211_send_4addr_nullfunc(local, sdata); | |
09a740ce | 5136 | |
61513162 JB |
5137 | /* |
5138 | * Start timer to probe the connection to the AP now. | |
5139 | * Also start the timer that will detect beacon loss. | |
5140 | */ | |
5141 | ieee80211_sta_reset_beacon_monitor(sdata); | |
5142 | ieee80211_sta_reset_conn_monitor(sdata); | |
09a740ce | 5143 | |
6911458d JB |
5144 | return true; |
5145 | out_err: | |
8a9be422 | 5146 | eth_zero_addr(sdata->vif.cfg.ap_addr); |
6911458d JB |
5147 | mutex_unlock(&sdata->local->sta_mtx); |
5148 | return false; | |
09a740ce TP |
5149 | } |
5150 | ||
61513162 JB |
5151 | static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, |
5152 | struct ieee80211_mgmt *mgmt, | |
5153 | size_t len) | |
f0706e82 | 5154 | { |
61513162 JB |
5155 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
5156 | struct ieee80211_mgd_assoc_data *assoc_data = ifmgd->assoc_data; | |
5157 | u16 capab_info, status_code, aid; | |
ea5cba26 JB |
5158 | struct ieee80211_elems_parse_params parse_params = { |
5159 | .bss = NULL, | |
5160 | .link_id = -1, | |
5161 | .from_ap = true, | |
5162 | }; | |
61513162 JB |
5163 | struct ieee802_11_elems *elems; |
5164 | int ac; | |
6911458d JB |
5165 | const u8 *elem_start; |
5166 | unsigned int elem_len; | |
61513162 | 5167 | bool reassoc; |
61513162 JB |
5168 | struct ieee80211_event event = { |
5169 | .type = MLME_EVENT, | |
5170 | .u.mlme.data = ASSOC_EVENT, | |
5171 | }; | |
5172 | struct ieee80211_prep_tx_info info = {}; | |
5173 | struct cfg80211_rx_assoc_resp resp = { | |
5174 | .uapsd_queues = -1, | |
5175 | }; | |
78a6a43a | 5176 | u8 ap_mld_addr[ETH_ALEN] __aligned(2); |
81151ce4 | 5177 | unsigned int link_id; |
f0706e82 | 5178 | |
61513162 | 5179 | sdata_assert_lock(sdata); |
f0706e82 | 5180 | |
61513162 JB |
5181 | if (!assoc_data) |
5182 | return; | |
77fdaa12 | 5183 | |
81151ce4 JB |
5184 | if (!ether_addr_equal(assoc_data->ap_addr, mgmt->bssid) || |
5185 | !ether_addr_equal(assoc_data->ap_addr, mgmt->sa)) | |
61513162 | 5186 | return; |
5d24828d | 5187 | |
61513162 JB |
5188 | /* |
5189 | * AssocResp and ReassocResp have identical structure, so process both | |
5190 | * of them in this function. | |
5191 | */ | |
37799e52 | 5192 | |
61513162 JB |
5193 | if (len < 24 + 6) |
5194 | return; | |
37799e52 | 5195 | |
61513162 JB |
5196 | reassoc = ieee80211_is_reassoc_resp(mgmt->frame_control); |
5197 | capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); | |
5198 | status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); | |
81151ce4 | 5199 | if (assoc_data->s1g) |
6911458d JB |
5200 | elem_start = mgmt->u.s1g_assoc_resp.variable; |
5201 | else | |
5202 | elem_start = mgmt->u.assoc_resp.variable; | |
5d24828d | 5203 | |
61513162 JB |
5204 | /* |
5205 | * Note: this may not be perfect, AP might misbehave - if | |
5206 | * anyone needs to rely on perfect complete notification | |
5207 | * with the exact right subtype, then we need to track what | |
5208 | * we actually transmitted. | |
5209 | */ | |
5210 | info.subtype = reassoc ? IEEE80211_STYPE_REASSOC_REQ : | |
5211 | IEEE80211_STYPE_ASSOC_REQ; | |
1b3a2e49 | 5212 | |
61513162 JB |
5213 | if (assoc_data->fils_kek_len && |
5214 | fils_decrypt_assoc_resp(sdata, (u8 *)mgmt, &len, assoc_data) < 0) | |
5215 | return; | |
1b3a2e49 | 5216 | |
6911458d | 5217 | elem_len = len - (elem_start - (u8 *)mgmt); |
ea5cba26 JB |
5218 | parse_params.start = elem_start; |
5219 | parse_params.len = elem_len; | |
5220 | elems = ieee802_11_parse_elems_full(&parse_params); | |
61513162 JB |
5221 | if (!elems) |
5222 | goto notify_driver; | |
1b3a2e49 | 5223 | |
6911458d JB |
5224 | if (elems->aid_resp) |
5225 | aid = le16_to_cpu(elems->aid_resp->aid); | |
81151ce4 | 5226 | else if (assoc_data->s1g) |
6911458d JB |
5227 | aid = 0; /* TODO */ |
5228 | else | |
5229 | aid = le16_to_cpu(mgmt->u.assoc_resp.aid); | |
5230 | ||
5231 | /* | |
5232 | * The 5 MSB of the AID field are reserved | |
5233 | * (802.11-2016 9.4.1.8 AID field) | |
5234 | */ | |
5235 | aid &= 0x7ff; | |
5236 | ||
5237 | sdata_info(sdata, | |
5238 | "RX %sssocResp from %pM (capab=0x%x status=%d aid=%d)\n", | |
81151ce4 | 5239 | reassoc ? "Rea" : "A", assoc_data->ap_addr, |
6911458d JB |
5240 | capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); |
5241 | ||
5242 | ifmgd->broken_ap = false; | |
5243 | ||
61513162 JB |
5244 | if (status_code == WLAN_STATUS_ASSOC_REJECTED_TEMPORARILY && |
5245 | elems->timeout_int && | |
5246 | elems->timeout_int->type == WLAN_TIMEOUT_ASSOC_COMEBACK) { | |
5247 | u32 tu, ms; | |
1b3a2e49 | 5248 | |
81151ce4 | 5249 | cfg80211_assoc_comeback(sdata->dev, assoc_data->ap_addr, |
61513162 | 5250 | le32_to_cpu(elems->timeout_int->value)); |
f0706e82 | 5251 | |
61513162 JB |
5252 | tu = le32_to_cpu(elems->timeout_int->value); |
5253 | ms = tu * 1024 / 1000; | |
5254 | sdata_info(sdata, | |
5255 | "%pM rejected association temporarily; comeback duration %u TU (%u ms)\n", | |
81151ce4 | 5256 | assoc_data->ap_addr, tu, ms); |
61513162 JB |
5257 | assoc_data->timeout = jiffies + msecs_to_jiffies(ms); |
5258 | assoc_data->timeout_started = true; | |
5259 | if (ms > IEEE80211_ASSOC_TIMEOUT) | |
5260 | run_again(sdata, assoc_data->timeout); | |
5261 | goto notify_driver; | |
5262 | } | |
5bb644a0 | 5263 | |
61513162 JB |
5264 | if (status_code != WLAN_STATUS_SUCCESS) { |
5265 | sdata_info(sdata, "%pM denied association (code=%d)\n", | |
81151ce4 | 5266 | assoc_data->ap_addr, status_code); |
61513162 JB |
5267 | event.u.mlme.status = MLME_DENIED; |
5268 | event.u.mlme.reason = status_code; | |
5269 | drv_event_callback(sdata->local, sdata, &event); | |
5270 | } else { | |
6911458d JB |
5271 | if (aid == 0 || aid > IEEE80211_MAX_AID) { |
5272 | sdata_info(sdata, | |
5273 | "invalid AID value %d (out of range), turn off PS\n", | |
5274 | aid); | |
5275 | aid = 0; | |
5276 | ifmgd->broken_ap = true; | |
5277 | } | |
5278 | ||
f1871abd | 5279 | if (ieee80211_vif_is_mld(&sdata->vif)) { |
a286de1a | 5280 | if (!elems->ml_basic) { |
81151ce4 JB |
5281 | sdata_info(sdata, |
5282 | "MLO association with %pM but no multi-link element in response!\n", | |
5283 | assoc_data->ap_addr); | |
5284 | goto abandon_assoc; | |
5285 | } | |
5286 | ||
a286de1a | 5287 | if (le16_get_bits(elems->ml_basic->control, |
81151ce4 JB |
5288 | IEEE80211_ML_CONTROL_TYPE) != |
5289 | IEEE80211_ML_CONTROL_TYPE_BASIC) { | |
5290 | sdata_info(sdata, | |
5291 | "bad multi-link element (control=0x%x)\n", | |
a286de1a | 5292 | le16_to_cpu(elems->ml_basic->control)); |
81151ce4 JB |
5293 | goto abandon_assoc; |
5294 | } else { | |
5295 | struct ieee80211_mle_basic_common_info *common; | |
5296 | ||
a286de1a | 5297 | common = (void *)elems->ml_basic->variable; |
81151ce4 JB |
5298 | |
5299 | if (memcmp(assoc_data->ap_addr, | |
5300 | common->mld_mac_addr, ETH_ALEN)) { | |
5301 | sdata_info(sdata, | |
5302 | "AP MLD MAC address mismatch: got %pM expected %pM\n", | |
5303 | common->mld_mac_addr, | |
5304 | assoc_data->ap_addr); | |
5305 | goto abandon_assoc; | |
5306 | } | |
5307 | } | |
5308 | } | |
5309 | ||
6911458d JB |
5310 | sdata->vif.cfg.aid = aid; |
5311 | ||
81151ce4 | 5312 | if (!ieee80211_assoc_success(sdata, mgmt, elems, |
6911458d | 5313 | elem_start, elem_len)) { |
61513162 JB |
5314 | /* oops -- internal error -- send timeout for now */ |
5315 | ieee80211_destroy_assoc_data(sdata, ASSOC_TIMEOUT); | |
5316 | goto notify_driver; | |
5317 | } | |
5318 | event.u.mlme.status = MLME_SUCCESS; | |
5319 | drv_event_callback(sdata->local, sdata, &event); | |
5320 | sdata_info(sdata, "associated\n"); | |
f0706e82 | 5321 | |
81151ce4 JB |
5322 | info.success = 1; |
5323 | } | |
5324 | ||
5325 | for (link_id = 0; link_id < IEEE80211_MLD_MAX_NUM_LINKS; link_id++) { | |
5326 | struct ieee80211_link_data *link; | |
5327 | ||
5328 | link = sdata_dereference(sdata->link[link_id], sdata); | |
5329 | if (!link) | |
5330 | continue; | |
c2d052a3 | 5331 | |
81151ce4 JB |
5332 | if (!assoc_data->link[link_id].bss) |
5333 | continue; | |
c2d052a3 | 5334 | |
81151ce4 JB |
5335 | resp.links[link_id].bss = assoc_data->link[link_id].bss; |
5336 | resp.links[link_id].addr = link->conf->addr; | |
c2d052a3 | 5337 | resp.links[link_id].status = assoc_data->link[link_id].status; |
04ac3c0e | 5338 | |
81151ce4 | 5339 | /* get uapsd queues configuration - same for all links */ |
61513162 JB |
5340 | resp.uapsd_queues = 0; |
5341 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) | |
81151ce4 | 5342 | if (link->tx_conf[ac].uapsd) |
61513162 | 5343 | resp.uapsd_queues |= ieee80211_ac_to_qos_mask[ac]; |
61513162 JB |
5344 | } |
5345 | ||
f1871abd | 5346 | if (ieee80211_vif_is_mld(&sdata->vif)) { |
78a6a43a JB |
5347 | ether_addr_copy(ap_mld_addr, sdata->vif.cfg.ap_addr); |
5348 | resp.ap_mld_addr = ap_mld_addr; | |
5349 | } | |
5350 | ||
81151ce4 JB |
5351 | ieee80211_destroy_assoc_data(sdata, |
5352 | status_code == WLAN_STATUS_SUCCESS ? | |
5353 | ASSOC_SUCCESS : | |
5354 | ASSOC_REJECTED); | |
5355 | ||
61513162 JB |
5356 | resp.buf = (u8 *)mgmt; |
5357 | resp.len = len; | |
5358 | resp.req_ies = ifmgd->assoc_req_ies; | |
5359 | resp.req_ies_len = ifmgd->assoc_req_ies_len; | |
5360 | cfg80211_rx_assoc_resp(sdata->dev, &resp); | |
5361 | notify_driver: | |
5362 | drv_mgd_complete_tx(sdata->local, sdata, &info); | |
5363 | kfree(elems); | |
81151ce4 JB |
5364 | return; |
5365 | abandon_assoc: | |
5366 | ieee80211_destroy_assoc_data(sdata, ASSOC_ABANDON); | |
5367 | goto notify_driver; | |
04ac3c0e FF |
5368 | } |
5369 | ||
61513162 JB |
5370 | static void ieee80211_rx_bss_info(struct ieee80211_link_data *link, |
5371 | struct ieee80211_mgmt *mgmt, size_t len, | |
5372 | struct ieee80211_rx_status *rx_status) | |
66e67e41 | 5373 | { |
61513162 | 5374 | struct ieee80211_sub_if_data *sdata = link->sdata; |
66e67e41 | 5375 | struct ieee80211_local *local = sdata->local; |
61513162 JB |
5376 | struct ieee80211_bss *bss; |
5377 | struct ieee80211_channel *channel; | |
66e67e41 | 5378 | |
8d61ffa5 | 5379 | sdata_assert_lock(sdata); |
66e67e41 | 5380 | |
61513162 JB |
5381 | channel = ieee80211_get_channel_khz(local->hw.wiphy, |
5382 | ieee80211_rx_status_to_khz(rx_status)); | |
5383 | if (!channel) | |
5384 | return; | |
66e67e41 | 5385 | |
61513162 JB |
5386 | bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, channel); |
5387 | if (bss) { | |
5388 | link->conf->beacon_rate = bss->beacon_rate; | |
5389 | ieee80211_rx_bss_put(local, bss); | |
66e67e41 | 5390 | } |
61513162 | 5391 | } |
66e67e41 | 5392 | |
a1845fc7 | 5393 | |
61513162 JB |
5394 | static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_link_data *link, |
5395 | struct sk_buff *skb) | |
5396 | { | |
5397 | struct ieee80211_sub_if_data *sdata = link->sdata; | |
5398 | struct ieee80211_mgmt *mgmt = (void *)skb->data; | |
5399 | struct ieee80211_if_managed *ifmgd; | |
5400 | struct ieee80211_rx_status *rx_status = (void *) skb->cb; | |
5401 | struct ieee80211_channel *channel; | |
5402 | size_t baselen, len = skb->len; | |
66e67e41 | 5403 | |
61513162 | 5404 | ifmgd = &sdata->u.mgd; |
6b8ece3a | 5405 | |
61513162 | 5406 | sdata_assert_lock(sdata); |
66e67e41 | 5407 | |
61513162 JB |
5408 | /* |
5409 | * According to Draft P802.11ax D6.0 clause 26.17.2.3.2: | |
5410 | * "If a 6 GHz AP receives a Probe Request frame and responds with | |
5411 | * a Probe Response frame [..], the Address 1 field of the Probe | |
5412 | * Response frame shall be set to the broadcast address [..]" | |
5413 | * So, on 6GHz band we should also accept broadcast responses. | |
5414 | */ | |
5415 | channel = ieee80211_get_channel(sdata->local->hw.wiphy, | |
5416 | rx_status->freq); | |
5417 | if (!channel) | |
5418 | return; | |
66e67e41 | 5419 | |
61513162 JB |
5420 | if (!ether_addr_equal(mgmt->da, sdata->vif.addr) && |
5421 | (channel->band != NL80211_BAND_6GHZ || | |
5422 | !is_broadcast_ether_addr(mgmt->da))) | |
5423 | return; /* ignore ProbeResp to foreign address */ | |
66e67e41 | 5424 | |
61513162 JB |
5425 | baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt; |
5426 | if (baselen > len) | |
5427 | return; | |
66e67e41 | 5428 | |
61513162 | 5429 | ieee80211_rx_bss_info(link, mgmt, len, rx_status); |
407879b6 | 5430 | |
61513162 JB |
5431 | if (ifmgd->associated && |
5432 | ether_addr_equal(mgmt->bssid, link->u.mgd.bssid)) | |
5433 | ieee80211_reset_ap_probe(sdata); | |
66e67e41 JB |
5434 | } |
5435 | ||
61513162 JB |
5436 | /* |
5437 | * This is the canonical list of information elements we care about, | |
5438 | * the filter code also gives us all changes to the Microsoft OUI | |
5439 | * (00:50:F2) vendor IE which is used for WMM which we need to track, | |
5440 | * as well as the DTPC IE (part of the Cisco OUI) used for signaling | |
5441 | * changes to requested client power. | |
5442 | * | |
5443 | * We implement beacon filtering in software since that means we can | |
5444 | * avoid processing the frame here and in cfg80211, and userspace | |
5445 | * will not be able to tell whether the hardware supports it or not. | |
5446 | * | |
5447 | * XXX: This list needs to be dynamic -- userspace needs to be able to | |
5448 | * add items it requires. It also needs to be able to tell us to | |
5449 | * look out for other vendor IEs. | |
5450 | */ | |
5451 | static const u64 care_about_ies = | |
5452 | (1ULL << WLAN_EID_COUNTRY) | | |
5453 | (1ULL << WLAN_EID_ERP_INFO) | | |
5454 | (1ULL << WLAN_EID_CHANNEL_SWITCH) | | |
5455 | (1ULL << WLAN_EID_PWR_CONSTRAINT) | | |
5456 | (1ULL << WLAN_EID_HT_CAPABILITY) | | |
5457 | (1ULL << WLAN_EID_HT_OPERATION) | | |
5458 | (1ULL << WLAN_EID_EXT_CHANSWITCH_ANN); | |
5459 | ||
5460 | static void ieee80211_handle_beacon_sig(struct ieee80211_link_data *link, | |
5461 | struct ieee80211_if_managed *ifmgd, | |
5462 | struct ieee80211_bss_conf *bss_conf, | |
5463 | struct ieee80211_local *local, | |
5464 | struct ieee80211_rx_status *rx_status) | |
66e67e41 | 5465 | { |
61513162 | 5466 | struct ieee80211_sub_if_data *sdata = link->sdata; |
66e67e41 | 5467 | |
61513162 | 5468 | /* Track average RSSI from the Beacon frames of the current AP */ |
66e67e41 | 5469 | |
61513162 JB |
5470 | if (!link->u.mgd.tracking_signal_avg) { |
5471 | link->u.mgd.tracking_signal_avg = true; | |
5472 | ewma_beacon_signal_init(&link->u.mgd.ave_beacon_signal); | |
5473 | link->u.mgd.last_cqm_event_signal = 0; | |
5474 | link->u.mgd.count_beacon_signal = 1; | |
5475 | link->u.mgd.last_ave_beacon_signal = 0; | |
5476 | } else { | |
5477 | link->u.mgd.count_beacon_signal++; | |
5478 | } | |
5479 | ||
5480 | ewma_beacon_signal_add(&link->u.mgd.ave_beacon_signal, | |
5481 | -rx_status->signal); | |
5482 | ||
5483 | if (ifmgd->rssi_min_thold != ifmgd->rssi_max_thold && | |
5484 | link->u.mgd.count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) { | |
5485 | int sig = -ewma_beacon_signal_read(&link->u.mgd.ave_beacon_signal); | |
5486 | int last_sig = link->u.mgd.last_ave_beacon_signal; | |
5487 | struct ieee80211_event event = { | |
5488 | .type = RSSI_EVENT, | |
5489 | }; | |
66e67e41 JB |
5490 | |
5491 | /* | |
61513162 JB |
5492 | * if signal crosses either of the boundaries, invoke callback |
5493 | * with appropriate parameters | |
66e67e41 | 5494 | */ |
61513162 JB |
5495 | if (sig > ifmgd->rssi_max_thold && |
5496 | (last_sig <= ifmgd->rssi_min_thold || last_sig == 0)) { | |
5497 | link->u.mgd.last_ave_beacon_signal = sig; | |
5498 | event.u.rssi.data = RSSI_EVENT_HIGH; | |
5499 | drv_event_callback(local, sdata, &event); | |
5500 | } else if (sig < ifmgd->rssi_min_thold && | |
5501 | (last_sig >= ifmgd->rssi_max_thold || | |
5502 | last_sig == 0)) { | |
5503 | link->u.mgd.last_ave_beacon_signal = sig; | |
5504 | event.u.rssi.data = RSSI_EVENT_LOW; | |
5505 | drv_event_callback(local, sdata, &event); | |
5506 | } | |
5507 | } | |
66e67e41 | 5508 | |
61513162 JB |
5509 | if (bss_conf->cqm_rssi_thold && |
5510 | link->u.mgd.count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT && | |
5511 | !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)) { | |
5512 | int sig = -ewma_beacon_signal_read(&link->u.mgd.ave_beacon_signal); | |
5513 | int last_event = link->u.mgd.last_cqm_event_signal; | |
5514 | int thold = bss_conf->cqm_rssi_thold; | |
5515 | int hyst = bss_conf->cqm_rssi_hyst; | |
5516 | ||
5517 | if (sig < thold && | |
5518 | (last_event == 0 || sig < last_event - hyst)) { | |
5519 | link->u.mgd.last_cqm_event_signal = sig; | |
5520 | ieee80211_cqm_rssi_notify( | |
5521 | &sdata->vif, | |
5522 | NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, | |
5523 | sig, GFP_KERNEL); | |
5524 | } else if (sig > thold && | |
5525 | (last_event == 0 || sig > last_event + hyst)) { | |
5526 | link->u.mgd.last_cqm_event_signal = sig; | |
5527 | ieee80211_cqm_rssi_notify( | |
5528 | &sdata->vif, | |
5529 | NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, | |
5530 | sig, GFP_KERNEL); | |
5531 | } | |
66e67e41 JB |
5532 | } |
5533 | ||
61513162 JB |
5534 | if (bss_conf->cqm_rssi_low && |
5535 | link->u.mgd.count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) { | |
5536 | int sig = -ewma_beacon_signal_read(&link->u.mgd.ave_beacon_signal); | |
5537 | int last_event = link->u.mgd.last_cqm_event_signal; | |
5538 | int low = bss_conf->cqm_rssi_low; | |
5539 | int high = bss_conf->cqm_rssi_high; | |
66e67e41 | 5540 | |
61513162 JB |
5541 | if (sig < low && |
5542 | (last_event == 0 || last_event >= low)) { | |
5543 | link->u.mgd.last_cqm_event_signal = sig; | |
5544 | ieee80211_cqm_rssi_notify( | |
5545 | &sdata->vif, | |
5546 | NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW, | |
5547 | sig, GFP_KERNEL); | |
5548 | } else if (sig > high && | |
5549 | (last_event == 0 || last_event <= high)) { | |
5550 | link->u.mgd.last_cqm_event_signal = sig; | |
5551 | ieee80211_cqm_rssi_notify( | |
5552 | &sdata->vif, | |
5553 | NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH, | |
5554 | sig, GFP_KERNEL); | |
5555 | } | |
1672c0e3 | 5556 | } |
66e67e41 JB |
5557 | } |
5558 | ||
61513162 JB |
5559 | static bool ieee80211_rx_our_beacon(const u8 *tx_bssid, |
5560 | struct cfg80211_bss *bss) | |
1672c0e3 | 5561 | { |
61513162 JB |
5562 | if (ether_addr_equal(tx_bssid, bss->bssid)) |
5563 | return true; | |
5564 | if (!bss->transmitted_bss) | |
5565 | return false; | |
5566 | return ether_addr_equal(tx_bssid, bss->transmitted_bss->bssid); | |
1672c0e3 JB |
5567 | } |
5568 | ||
aa87cd8b JB |
5569 | static bool ieee80211_config_puncturing(struct ieee80211_link_data *link, |
5570 | const struct ieee80211_eht_operation *eht_oper, | |
5571 | u64 *changed) | |
5572 | { | |
5573 | u16 bitmap = 0, extracted; | |
5574 | ||
5575 | if ((eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT) && | |
5576 | (eht_oper->params & | |
5577 | IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)) { | |
5578 | const struct ieee80211_eht_operation_info *info = | |
5579 | (void *)eht_oper->optional; | |
5580 | const u8 *disable_subchannel_bitmap = info->optional; | |
5581 | ||
5582 | bitmap = get_unaligned_le16(disable_subchannel_bitmap); | |
5583 | } | |
5584 | ||
5585 | extracted = ieee80211_extract_dis_subch_bmap(eht_oper, | |
5586 | &link->conf->chandef, | |
5587 | bitmap); | |
5588 | ||
5589 | /* accept if there are no changes */ | |
5590 | if (!(*changed & BSS_CHANGED_BANDWIDTH) && | |
5591 | extracted == link->conf->eht_puncturing) | |
5592 | return true; | |
5593 | ||
b25413fe AD |
5594 | if (!cfg80211_valid_disable_subchannel_bitmap(&bitmap, |
5595 | &link->conf->chandef)) { | |
aa87cd8b JB |
5596 | link_info(link, |
5597 | "Got an invalid disable subchannel bitmap from AP %pM: bitmap = 0x%x, bw = 0x%x. disconnect\n", | |
5598 | link->u.mgd.bssid, | |
5599 | bitmap, | |
5600 | link->conf->chandef.width); | |
5601 | return false; | |
5602 | } | |
5603 | ||
5604 | ieee80211_handle_puncturing_bitmap(link, eht_oper, bitmap, changed); | |
5605 | return true; | |
5606 | } | |
5607 | ||
61513162 JB |
5608 | static void ieee80211_rx_mgmt_beacon(struct ieee80211_link_data *link, |
5609 | struct ieee80211_hdr *hdr, size_t len, | |
5610 | struct ieee80211_rx_status *rx_status) | |
9c6bd790 | 5611 | { |
61513162 | 5612 | struct ieee80211_sub_if_data *sdata = link->sdata; |
1fa57d01 | 5613 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
61513162 JB |
5614 | struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; |
5615 | struct ieee80211_vif_cfg *vif_cfg = &sdata->vif.cfg; | |
5616 | struct ieee80211_mgmt *mgmt = (void *) hdr; | |
5617 | size_t baselen; | |
5618 | struct ieee802_11_elems *elems; | |
5619 | struct ieee80211_local *local = sdata->local; | |
5620 | struct ieee80211_chanctx_conf *chanctx_conf; | |
0143ea09 | 5621 | struct ieee80211_supported_band *sband; |
61513162 JB |
5622 | struct ieee80211_channel *chan; |
5623 | struct link_sta_info *link_sta; | |
5624 | struct sta_info *sta; | |
aa87cd8b | 5625 | u64 changed = 0; |
61513162 JB |
5626 | bool erp_valid; |
5627 | u8 erp_value = 0; | |
5628 | u32 ncrc = 0; | |
5629 | u8 *bssid, *variable = mgmt->u.beacon.variable; | |
5630 | u8 deauth_buf[IEEE80211_DEAUTH_FRAME_LEN]; | |
ea5cba26 JB |
5631 | struct ieee80211_elems_parse_params parse_params = { |
5632 | .link_id = -1, | |
5633 | .from_ap = true, | |
5634 | }; | |
9c6bd790 | 5635 | |
61513162 | 5636 | sdata_assert_lock(sdata); |
77fdaa12 | 5637 | |
61513162 JB |
5638 | /* Process beacon from the current BSS */ |
5639 | bssid = ieee80211_get_bssid(hdr, len, sdata->vif.type); | |
5640 | if (ieee80211_is_s1g_beacon(mgmt->frame_control)) { | |
5641 | struct ieee80211_ext *ext = (void *) mgmt; | |
1672c0e3 | 5642 | |
61513162 JB |
5643 | if (ieee80211_is_s1g_short_beacon(ext->frame_control)) |
5644 | variable = ext->u.s1g_short_beacon.variable; | |
5645 | else | |
5646 | variable = ext->u.s1g_beacon.variable; | |
1672c0e3 JB |
5647 | } |
5648 | ||
61513162 JB |
5649 | baselen = (u8 *) variable - (u8 *) mgmt; |
5650 | if (baselen > len) | |
5651 | return; | |
66e67e41 | 5652 | |
ea5cba26 JB |
5653 | parse_params.start = variable; |
5654 | parse_params.len = len - baselen; | |
5655 | ||
61513162 JB |
5656 | rcu_read_lock(); |
5657 | chanctx_conf = rcu_dereference(link->conf->chanctx_conf); | |
5658 | if (!chanctx_conf) { | |
5659 | rcu_read_unlock(); | |
5660 | return; | |
5661 | } | |
66e67e41 | 5662 | |
61513162 JB |
5663 | if (ieee80211_rx_status_to_khz(rx_status) != |
5664 | ieee80211_channel_to_khz(chanctx_conf->def.chan)) { | |
5665 | rcu_read_unlock(); | |
5666 | return; | |
5667 | } | |
5668 | chan = chanctx_conf->def.chan; | |
5669 | rcu_read_unlock(); | |
66e67e41 | 5670 | |
61513162 | 5671 | if (ifmgd->assoc_data && ifmgd->assoc_data->need_beacon && |
f1871abd | 5672 | !WARN_ON(ieee80211_vif_is_mld(&sdata->vif)) && |
81151ce4 | 5673 | ieee80211_rx_our_beacon(bssid, ifmgd->assoc_data->link[0].bss)) { |
ea5cba26 JB |
5674 | parse_params.bss = ifmgd->assoc_data->link[0].bss; |
5675 | elems = ieee802_11_parse_elems_full(&parse_params); | |
61513162 JB |
5676 | if (!elems) |
5677 | return; | |
66e67e41 | 5678 | |
61513162 | 5679 | ieee80211_rx_bss_info(link, mgmt, len, rx_status); |
66e67e41 | 5680 | |
61513162 JB |
5681 | if (elems->dtim_period) |
5682 | link->u.mgd.dtim_period = elems->dtim_period; | |
5683 | link->u.mgd.have_beacon = true; | |
5684 | ifmgd->assoc_data->need_beacon = false; | |
5685 | if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY)) { | |
5686 | link->conf->sync_tsf = | |
5687 | le64_to_cpu(mgmt->u.beacon.timestamp); | |
5688 | link->conf->sync_device_ts = | |
5689 | rx_status->device_timestamp; | |
5690 | link->conf->sync_dtim_count = elems->dtim_count; | |
66e67e41 | 5691 | } |
66e67e41 | 5692 | |
61513162 JB |
5693 | if (elems->mbssid_config_ie) |
5694 | bss_conf->profile_periodicity = | |
5695 | elems->mbssid_config_ie->profile_periodicity; | |
5696 | else | |
5697 | bss_conf->profile_periodicity = 0; | |
a43abf29 | 5698 | |
61513162 JB |
5699 | if (elems->ext_capab_len >= 11 && |
5700 | (elems->ext_capab[10] & WLAN_EXT_CAPA11_EMA_SUPPORT)) | |
5701 | bss_conf->ema_ap = true; | |
72a8a3ed | 5702 | else |
61513162 JB |
5703 | bss_conf->ema_ap = false; |
5704 | ||
5705 | /* continue assoc process */ | |
5706 | ifmgd->assoc_data->timeout = jiffies; | |
5707 | ifmgd->assoc_data->timeout_started = true; | |
5708 | run_again(sdata, ifmgd->assoc_data->timeout); | |
5709 | kfree(elems); | |
5710 | return; | |
5711 | } | |
5712 | ||
5713 | if (!ifmgd->associated || | |
5714 | !ieee80211_rx_our_beacon(bssid, link->u.mgd.bss)) | |
5715 | return; | |
5716 | bssid = link->u.mgd.bssid; | |
5717 | ||
5718 | if (!(rx_status->flag & RX_FLAG_NO_SIGNAL_VAL)) | |
5719 | ieee80211_handle_beacon_sig(link, ifmgd, bss_conf, | |
5720 | local, rx_status); | |
5721 | ||
5722 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) { | |
5723 | mlme_dbg_ratelimited(sdata, | |
5724 | "cancelling AP probe due to a received beacon\n"); | |
5725 | ieee80211_reset_ap_probe(sdata); | |
5726 | } | |
5727 | ||
5728 | /* | |
5729 | * Push the beacon loss detection into the future since | |
5730 | * we are processing a beacon from the AP just now. | |
5731 | */ | |
5732 | ieee80211_sta_reset_beacon_monitor(sdata); | |
5733 | ||
5734 | /* TODO: CRC urrently not calculated on S1G Beacon Compatibility | |
5735 | * element (which carries the beacon interval). Don't forget to add a | |
5736 | * bit to care_about_ies[] above if mac80211 is interested in a | |
5737 | * changing S1G element. | |
5738 | */ | |
5739 | if (!ieee80211_is_s1g_beacon(hdr->frame_control)) | |
5740 | ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4); | |
ea5cba26 JB |
5741 | parse_params.bss = link->u.mgd.bss; |
5742 | parse_params.filter = care_about_ies; | |
5743 | parse_params.crc = ncrc; | |
5744 | elems = ieee802_11_parse_elems_full(&parse_params); | |
61513162 JB |
5745 | if (!elems) |
5746 | return; | |
5747 | ncrc = elems->crc; | |
5748 | ||
5749 | if (ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK) && | |
5750 | ieee80211_check_tim(elems->tim, elems->tim_len, vif_cfg->aid)) { | |
5751 | if (local->hw.conf.dynamic_ps_timeout > 0) { | |
5752 | if (local->hw.conf.flags & IEEE80211_CONF_PS) { | |
5753 | local->hw.conf.flags &= ~IEEE80211_CONF_PS; | |
5754 | ieee80211_hw_config(local, | |
5755 | IEEE80211_CONF_CHANGE_PS); | |
5756 | } | |
5757 | ieee80211_send_nullfunc(local, sdata, false); | |
5758 | } else if (!local->pspolling && sdata->u.mgd.powersave) { | |
5759 | local->pspolling = true; | |
72a8a3ed | 5760 | |
b291ba11 | 5761 | /* |
61513162 JB |
5762 | * Here is assumed that the driver will be |
5763 | * able to send ps-poll frame and receive a | |
5764 | * response even though power save mode is | |
5765 | * enabled, but some drivers might require | |
5766 | * to disable power save here. This needs | |
5767 | * to be investigated. | |
b291ba11 | 5768 | */ |
61513162 | 5769 | ieee80211_send_pspoll(local, sdata); |
b291ba11 JB |
5770 | } |
5771 | } | |
5772 | ||
61513162 JB |
5773 | if (sdata->vif.p2p || |
5774 | sdata->vif.driver_flags & IEEE80211_VIF_GET_NOA_UPDATE) { | |
5775 | struct ieee80211_p2p_noa_attr noa = {}; | |
5776 | int ret; | |
e5593f56 | 5777 | |
61513162 JB |
5778 | ret = cfg80211_get_p2p_attr(variable, |
5779 | len - baselen, | |
5780 | IEEE80211_P2P_ATTR_ABSENCE_NOTICE, | |
5781 | (u8 *) &noa, sizeof(noa)); | |
5782 | if (ret >= 2) { | |
5783 | if (link->u.mgd.p2p_noa_index != noa.index) { | |
5784 | /* valid noa_attr and index changed */ | |
5785 | link->u.mgd.p2p_noa_index = noa.index; | |
5786 | memcpy(&bss_conf->p2p_noa_attr, &noa, sizeof(noa)); | |
5787 | changed |= BSS_CHANGED_P2P_PS; | |
5788 | /* | |
5789 | * make sure we update all information, the CRC | |
5790 | * mechanism doesn't look at P2P attributes. | |
5791 | */ | |
5792 | link->u.mgd.beacon_crc_valid = false; | |
5793 | } | |
5794 | } else if (link->u.mgd.p2p_noa_index != -1) { | |
5795 | /* noa_attr not found and we had valid noa_attr before */ | |
5796 | link->u.mgd.p2p_noa_index = -1; | |
5797 | memset(&bss_conf->p2p_noa_attr, 0, sizeof(bss_conf->p2p_noa_attr)); | |
5798 | changed |= BSS_CHANGED_P2P_PS; | |
5799 | link->u.mgd.beacon_crc_valid = false; | |
5800 | } | |
5801 | } | |
0b91111f | 5802 | |
61513162 JB |
5803 | if (link->u.mgd.csa_waiting_bcn) |
5804 | ieee80211_chswitch_post_beacon(link); | |
b291ba11 | 5805 | |
61513162 JB |
5806 | /* |
5807 | * Update beacon timing and dtim count on every beacon appearance. This | |
5808 | * will allow the driver to use the most updated values. Do it before | |
5809 | * comparing this one with last received beacon. | |
5810 | * IMPORTANT: These parameters would possibly be out of sync by the time | |
5811 | * the driver will use them. The synchronized view is currently | |
5812 | * guaranteed only in certain callbacks. | |
5813 | */ | |
5814 | if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY) && | |
5815 | !ieee80211_is_s1g_beacon(hdr->frame_control)) { | |
5816 | link->conf->sync_tsf = | |
5817 | le64_to_cpu(mgmt->u.beacon.timestamp); | |
5818 | link->conf->sync_device_ts = | |
5819 | rx_status->device_timestamp; | |
5820 | link->conf->sync_dtim_count = elems->dtim_count; | |
5821 | } | |
b291ba11 | 5822 | |
61513162 JB |
5823 | if ((ncrc == link->u.mgd.beacon_crc && link->u.mgd.beacon_crc_valid) || |
5824 | ieee80211_is_s1g_short_beacon(mgmt->frame_control)) | |
5825 | goto free; | |
5826 | link->u.mgd.beacon_crc = ncrc; | |
5827 | link->u.mgd.beacon_crc_valid = true; | |
5bd5666d | 5828 | |
61513162 | 5829 | ieee80211_rx_bss_info(link, mgmt, len, rx_status); |
e5593f56 | 5830 | |
61513162 JB |
5831 | ieee80211_sta_process_chanswitch(link, rx_status->mactime, |
5832 | rx_status->device_timestamp, | |
5833 | elems, true); | |
9abf4e49 | 5834 | |
61513162 JB |
5835 | if (!link->u.mgd.disable_wmm_tracking && |
5836 | ieee80211_sta_wmm_params(local, link, elems->wmm_param, | |
5837 | elems->wmm_param_len, | |
5838 | elems->mu_edca_param_set)) | |
5839 | changed |= BSS_CHANGED_QOS; | |
9abf4e49 | 5840 | |
61513162 JB |
5841 | /* |
5842 | * If we haven't had a beacon before, tell the driver about the | |
5843 | * DTIM period (and beacon timing if desired) now. | |
7d73cd94 | 5844 | */ |
61513162 JB |
5845 | if (!link->u.mgd.have_beacon) { |
5846 | /* a few bogus AP send dtim_period = 0 or no TIM IE */ | |
5847 | bss_conf->dtim_period = elems->dtim_period ?: 1; | |
b291ba11 | 5848 | |
61513162 JB |
5849 | changed |= BSS_CHANGED_BEACON_INFO; |
5850 | link->u.mgd.have_beacon = true; | |
b291ba11 | 5851 | |
61513162 JB |
5852 | mutex_lock(&local->iflist_mtx); |
5853 | ieee80211_recalc_ps(local); | |
5854 | mutex_unlock(&local->iflist_mtx); | |
b291ba11 | 5855 | |
61513162 JB |
5856 | ieee80211_recalc_ps_vif(sdata); |
5857 | } | |
ad935687 | 5858 | |
61513162 JB |
5859 | if (elems->erp_info) { |
5860 | erp_valid = true; | |
5861 | erp_value = elems->erp_info[0]; | |
5862 | } else { | |
5863 | erp_valid = false; | |
ad935687 | 5864 | } |
f0706e82 | 5865 | |
61513162 JB |
5866 | if (!ieee80211_is_s1g_beacon(hdr->frame_control)) |
5867 | changed |= ieee80211_handle_bss_capability(link, | |
5868 | le16_to_cpu(mgmt->u.beacon.capab_info), | |
5869 | erp_valid, erp_value); | |
1a1cb744 | 5870 | |
61513162 JB |
5871 | mutex_lock(&local->sta_mtx); |
5872 | sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr); | |
883b8dc1 RM |
5873 | if (WARN_ON(!sta)) { |
5874 | mutex_unlock(&local->sta_mtx); | |
61513162 | 5875 | goto free; |
883b8dc1 | 5876 | } |
61513162 JB |
5877 | link_sta = rcu_dereference_protected(sta->link[link->link_id], |
5878 | lockdep_is_held(&local->sta_mtx)); | |
883b8dc1 RM |
5879 | if (WARN_ON(!link_sta)) { |
5880 | mutex_unlock(&local->sta_mtx); | |
61513162 | 5881 | goto free; |
883b8dc1 | 5882 | } |
1a1cb744 | 5883 | |
0143ea09 HD |
5884 | if (WARN_ON(!link->conf->chandef.chan)) |
5885 | goto free; | |
5886 | ||
5887 | sband = local->hw.wiphy->bands[link->conf->chandef.chan->band]; | |
5888 | ||
5889 | changed |= ieee80211_recalc_twt_req(sdata, sband, link, link_sta, elems); | |
c52666ae | 5890 | |
61513162 JB |
5891 | if (ieee80211_config_bw(link, elems->ht_cap_elem, |
5892 | elems->vht_cap_elem, elems->ht_operation, | |
5893 | elems->vht_operation, elems->he_operation, | |
5894 | elems->eht_operation, | |
5895 | elems->s1g_oper, bssid, &changed)) { | |
5896 | mutex_unlock(&local->sta_mtx); | |
5897 | sdata_info(sdata, | |
5898 | "failed to follow AP %pM bandwidth change, disconnect\n", | |
5899 | bssid); | |
5900 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, | |
5901 | WLAN_REASON_DEAUTH_LEAVING, | |
5902 | true, deauth_buf); | |
5903 | ieee80211_report_disconnect(sdata, deauth_buf, | |
5904 | sizeof(deauth_buf), true, | |
5905 | WLAN_REASON_DEAUTH_LEAVING, | |
5906 | false); | |
5907 | goto free; | |
1a1cb744 JB |
5908 | } |
5909 | ||
15f9b3ef | 5910 | if (elems->opmode_notif) |
61513162 JB |
5911 | ieee80211_vht_handle_opmode(sdata, link_sta, |
5912 | *elems->opmode_notif, | |
5913 | rx_status->band); | |
5914 | mutex_unlock(&local->sta_mtx); | |
be72afe0 | 5915 | |
61513162 JB |
5916 | changed |= ieee80211_handle_pwr_constr(link, chan, mgmt, |
5917 | elems->country_elem, | |
5918 | elems->country_elem_len, | |
5919 | elems->pwr_constr_elem, | |
5920 | elems->cisco_dtpc_elem); | |
be72afe0 | 5921 | |
aa87cd8b JB |
5922 | if (elems->eht_operation && |
5923 | !(link->u.mgd.conn_flags & IEEE80211_CONN_DISABLE_EHT)) { | |
5924 | if (!ieee80211_config_puncturing(link, elems->eht_operation, | |
5925 | &changed)) { | |
5926 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, | |
5927 | WLAN_REASON_DEAUTH_LEAVING, | |
5928 | true, deauth_buf); | |
5929 | ieee80211_report_disconnect(sdata, deauth_buf, | |
5930 | sizeof(deauth_buf), true, | |
5931 | WLAN_REASON_DEAUTH_LEAVING, | |
5932 | false); | |
5933 | goto free; | |
5934 | } | |
5935 | } | |
5936 | ||
61513162 JB |
5937 | ieee80211_link_info_change_notify(sdata, link, changed); |
5938 | free: | |
5939 | kfree(elems); | |
1a1cb744 JB |
5940 | } |
5941 | ||
61513162 JB |
5942 | void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata, |
5943 | struct sk_buff *skb) | |
b8360ab8 | 5944 | { |
61513162 JB |
5945 | struct ieee80211_link_data *link = &sdata->deflink; |
5946 | struct ieee80211_rx_status *rx_status; | |
5947 | struct ieee80211_hdr *hdr; | |
5948 | u16 fc; | |
b8360ab8 | 5949 | |
61513162 JB |
5950 | rx_status = (struct ieee80211_rx_status *) skb->cb; |
5951 | hdr = (struct ieee80211_hdr *) skb->data; | |
5952 | fc = le16_to_cpu(hdr->frame_control); | |
7d352ccf | 5953 | |
61513162 JB |
5954 | sdata_lock(sdata); |
5955 | switch (fc & IEEE80211_FCTL_STYPE) { | |
5956 | case IEEE80211_STYPE_S1G_BEACON: | |
5957 | ieee80211_rx_mgmt_beacon(link, hdr, skb->len, rx_status); | |
5958 | break; | |
7d352ccf | 5959 | } |
8d61ffa5 | 5960 | sdata_unlock(sdata); |
b8360ab8 | 5961 | } |
b8360ab8 | 5962 | |
61513162 JB |
5963 | void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata, |
5964 | struct sk_buff *skb) | |
94ddc3b5 | 5965 | { |
61513162 JB |
5966 | struct ieee80211_link_data *link = &sdata->deflink; |
5967 | struct ieee80211_rx_status *rx_status; | |
5968 | struct ieee80211_mgmt *mgmt; | |
5969 | u16 fc; | |
5970 | int ies_len; | |
94ddc3b5 | 5971 | |
61513162 JB |
5972 | rx_status = (struct ieee80211_rx_status *) skb->cb; |
5973 | mgmt = (struct ieee80211_mgmt *) skb->data; | |
5974 | fc = le16_to_cpu(mgmt->frame_control); | |
94ddc3b5 | 5975 | |
61513162 | 5976 | sdata_lock(sdata); |
988c0f72 | 5977 | |
4f6c78de JB |
5978 | if (rx_status->link_valid) { |
5979 | link = sdata_dereference(sdata->link[rx_status->link_id], | |
5980 | sdata); | |
5981 | if (!link) | |
5982 | goto out; | |
5983 | } | |
5984 | ||
61513162 JB |
5985 | switch (fc & IEEE80211_FCTL_STYPE) { |
5986 | case IEEE80211_STYPE_BEACON: | |
5987 | ieee80211_rx_mgmt_beacon(link, (void *)mgmt, | |
5988 | skb->len, rx_status); | |
5989 | break; | |
5990 | case IEEE80211_STYPE_PROBE_RESP: | |
5991 | ieee80211_rx_mgmt_probe_resp(link, skb); | |
5992 | break; | |
5993 | case IEEE80211_STYPE_AUTH: | |
5994 | ieee80211_rx_mgmt_auth(sdata, mgmt, skb->len); | |
5995 | break; | |
5996 | case IEEE80211_STYPE_DEAUTH: | |
5997 | ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len); | |
5998 | break; | |
5999 | case IEEE80211_STYPE_DISASSOC: | |
6000 | ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len); | |
6001 | break; | |
6002 | case IEEE80211_STYPE_ASSOC_RESP: | |
6003 | case IEEE80211_STYPE_REASSOC_RESP: | |
6004 | ieee80211_rx_mgmt_assoc_resp(sdata, mgmt, skb->len); | |
6005 | break; | |
6006 | case IEEE80211_STYPE_ACTION: | |
556f16b8 BB |
6007 | if (!sdata->u.mgd.associated || |
6008 | !ether_addr_equal(mgmt->bssid, sdata->vif.cfg.ap_addr)) | |
6009 | break; | |
6010 | ||
61513162 JB |
6011 | if (mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) { |
6012 | struct ieee802_11_elems *elems; | |
9c6bd790 | 6013 | |
61513162 JB |
6014 | ies_len = skb->len - |
6015 | offsetof(struct ieee80211_mgmt, | |
6016 | u.action.u.chan_switch.variable); | |
f0706e82 | 6017 | |
61513162 JB |
6018 | if (ies_len < 0) |
6019 | break; | |
b2e8434f | 6020 | |
61513162 JB |
6021 | /* CSA IE cannot be overridden, no need for BSSID */ |
6022 | elems = ieee802_11_parse_elems( | |
6023 | mgmt->u.action.u.chan_switch.variable, | |
6024 | ies_len, true, NULL); | |
b2e8434f | 6025 | |
61513162 JB |
6026 | if (elems && !elems->parse_error) |
6027 | ieee80211_sta_process_chanswitch(link, | |
6028 | rx_status->mactime, | |
6029 | rx_status->device_timestamp, | |
6030 | elems, false); | |
6031 | kfree(elems); | |
6032 | } else if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) { | |
6033 | struct ieee802_11_elems *elems; | |
5bd5666d | 6034 | |
61513162 JB |
6035 | ies_len = skb->len - |
6036 | offsetof(struct ieee80211_mgmt, | |
6037 | u.action.u.ext_chan_switch.variable); | |
b2e8434f | 6038 | |
61513162 JB |
6039 | if (ies_len < 0) |
6040 | break; | |
60f8b39c | 6041 | |
61513162 JB |
6042 | /* |
6043 | * extended CSA IE can't be overridden, no need for | |
6044 | * BSSID | |
6045 | */ | |
6046 | elems = ieee802_11_parse_elems( | |
6047 | mgmt->u.action.u.ext_chan_switch.variable, | |
6048 | ies_len, true, NULL); | |
6049 | ||
6050 | if (elems && !elems->parse_error) { | |
6051 | /* for the handling code pretend it was an IE */ | |
6052 | elems->ext_chansw_ie = | |
6053 | &mgmt->u.action.u.ext_chan_switch.data; | |
6054 | ||
6055 | ieee80211_sta_process_chanswitch(link, | |
6056 | rx_status->mactime, | |
6057 | rx_status->device_timestamp, | |
6058 | elems, false); | |
6059 | } | |
6060 | ||
6061 | kfree(elems); | |
6062 | } | |
6063 | break; | |
370bd005 | 6064 | } |
4f6c78de | 6065 | out: |
61513162 | 6066 | sdata_unlock(sdata); |
77fdaa12 | 6067 | } |
60f8b39c | 6068 | |
61513162 | 6069 | static void ieee80211_sta_timer(struct timer_list *t) |
f2d9d270 | 6070 | { |
61513162 JB |
6071 | struct ieee80211_sub_if_data *sdata = |
6072 | from_timer(sdata, t, u.mgd.timer); | |
f2d9d270 | 6073 | |
16114496 | 6074 | wiphy_work_queue(sdata->local->hw.wiphy, &sdata->work); |
61513162 | 6075 | } |
f2d9d270 | 6076 | |
61513162 JB |
6077 | void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, |
6078 | u8 reason, bool tx) | |
6079 | { | |
6080 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; | |
f2d9d270 | 6081 | |
61513162 JB |
6082 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason, |
6083 | tx, frame_buf); | |
f2d9d270 | 6084 | |
61513162 JB |
6085 | ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, |
6086 | reason, false); | |
6087 | } | |
f2d9d270 | 6088 | |
61513162 JB |
6089 | static int ieee80211_auth(struct ieee80211_sub_if_data *sdata) |
6090 | { | |
6091 | struct ieee80211_local *local = sdata->local; | |
6092 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
6093 | struct ieee80211_mgd_auth_data *auth_data = ifmgd->auth_data; | |
6094 | u32 tx_flags = 0; | |
6095 | u16 trans = 1; | |
6096 | u16 status = 0; | |
6097 | struct ieee80211_prep_tx_info info = { | |
6098 | .subtype = IEEE80211_STYPE_AUTH, | |
6099 | }; | |
6100 | ||
6101 | sdata_assert_lock(sdata); | |
f2d9d270 | 6102 | |
61513162 JB |
6103 | if (WARN_ON_ONCE(!auth_data)) |
6104 | return -EINVAL; | |
f39b7d62 | 6105 | |
61513162 | 6106 | auth_data->tries++; |
f39b7d62 | 6107 | |
61513162 JB |
6108 | if (auth_data->tries > IEEE80211_AUTH_MAX_TRIES) { |
6109 | sdata_info(sdata, "authentication with %pM timed out\n", | |
81151ce4 | 6110 | auth_data->ap_addr); |
f39b7d62 | 6111 | |
61513162 JB |
6112 | /* |
6113 | * Most likely AP is not in the range so remove the | |
6114 | * bss struct for that AP. | |
6115 | */ | |
6116 | cfg80211_unlink_bss(local->hw.wiphy, auth_data->bss); | |
f39b7d62 | 6117 | |
61513162 JB |
6118 | return -ETIMEDOUT; |
6119 | } | |
f39b7d62 | 6120 | |
61513162 JB |
6121 | if (auth_data->algorithm == WLAN_AUTH_SAE) |
6122 | info.duration = jiffies_to_msecs(IEEE80211_AUTH_TIMEOUT_SAE); | |
f39b7d62 | 6123 | |
61513162 | 6124 | drv_mgd_prepare_tx(local, sdata, &info); |
f39b7d62 | 6125 | |
61513162 | 6126 | sdata_info(sdata, "send auth to %pM (try %d/%d)\n", |
81151ce4 | 6127 | auth_data->ap_addr, auth_data->tries, |
61513162 | 6128 | IEEE80211_AUTH_MAX_TRIES); |
f39b7d62 | 6129 | |
61513162 | 6130 | auth_data->expected_transaction = 2; |
f39b7d62 | 6131 | |
61513162 JB |
6132 | if (auth_data->algorithm == WLAN_AUTH_SAE) { |
6133 | trans = auth_data->sae_trans; | |
6134 | status = auth_data->sae_status; | |
6135 | auth_data->expected_transaction = trans; | |
6136 | } | |
f39b7d62 | 6137 | |
61513162 JB |
6138 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
6139 | tx_flags = IEEE80211_TX_CTL_REQ_TX_STATUS | | |
6140 | IEEE80211_TX_INTFL_MLME_CONN_TX; | |
f39b7d62 | 6141 | |
61513162 JB |
6142 | ieee80211_send_auth(sdata, trans, auth_data->algorithm, status, |
6143 | auth_data->data, auth_data->data_len, | |
81151ce4 JB |
6144 | auth_data->ap_addr, auth_data->ap_addr, |
6145 | NULL, 0, 0, tx_flags); | |
f39b7d62 | 6146 | |
61513162 JB |
6147 | if (tx_flags == 0) { |
6148 | if (auth_data->algorithm == WLAN_AUTH_SAE) | |
6149 | auth_data->timeout = jiffies + | |
6150 | IEEE80211_AUTH_TIMEOUT_SAE; | |
6151 | else | |
6152 | auth_data->timeout = jiffies + IEEE80211_AUTH_TIMEOUT; | |
6153 | } else { | |
6154 | auth_data->timeout = | |
6155 | round_jiffies_up(jiffies + IEEE80211_AUTH_TIMEOUT_LONG); | |
f39b7d62 MG |
6156 | } |
6157 | ||
61513162 JB |
6158 | auth_data->timeout_started = true; |
6159 | run_again(sdata, auth_data->timeout); | |
6160 | ||
6161 | return 0; | |
f2d9d270 JB |
6162 | } |
6163 | ||
61513162 | 6164 | static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) |
97634ef4 | 6165 | { |
61513162 JB |
6166 | struct ieee80211_mgd_assoc_data *assoc_data = sdata->u.mgd.assoc_data; |
6167 | struct ieee80211_local *local = sdata->local; | |
6168 | int ret; | |
97634ef4 | 6169 | |
61513162 | 6170 | sdata_assert_lock(sdata); |
97634ef4 | 6171 | |
61513162 JB |
6172 | assoc_data->tries++; |
6173 | if (assoc_data->tries > IEEE80211_ASSOC_MAX_TRIES) { | |
6174 | sdata_info(sdata, "association with %pM timed out\n", | |
81151ce4 | 6175 | assoc_data->ap_addr); |
97634ef4 | 6176 | |
61513162 JB |
6177 | /* |
6178 | * Most likely AP is not in the range so remove the | |
6179 | * bss struct for that AP. | |
6180 | */ | |
81151ce4 JB |
6181 | cfg80211_unlink_bss(local->hw.wiphy, |
6182 | assoc_data->link[assoc_data->assoc_link_id].bss); | |
97634ef4 | 6183 | |
61513162 | 6184 | return -ETIMEDOUT; |
97634ef4 MG |
6185 | } |
6186 | ||
61513162 | 6187 | sdata_info(sdata, "associate with %pM (try %d/%d)\n", |
81151ce4 | 6188 | assoc_data->ap_addr, assoc_data->tries, |
61513162 JB |
6189 | IEEE80211_ASSOC_MAX_TRIES); |
6190 | ret = ieee80211_send_assoc(sdata); | |
6191 | if (ret) | |
6192 | return ret; | |
97634ef4 | 6193 | |
61513162 JB |
6194 | if (!ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) { |
6195 | assoc_data->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT; | |
6196 | assoc_data->timeout_started = true; | |
6197 | run_again(sdata, assoc_data->timeout); | |
6198 | } else { | |
6199 | assoc_data->timeout = | |
6200 | round_jiffies_up(jiffies + | |
6201 | IEEE80211_ASSOC_TIMEOUT_LONG); | |
6202 | assoc_data->timeout_started = true; | |
6203 | run_again(sdata, assoc_data->timeout); | |
97634ef4 MG |
6204 | } |
6205 | ||
61513162 JB |
6206 | return 0; |
6207 | } | |
97634ef4 | 6208 | |
61513162 JB |
6209 | void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata, |
6210 | __le16 fc, bool acked) | |
6211 | { | |
6212 | struct ieee80211_local *local = sdata->local; | |
97634ef4 | 6213 | |
61513162 JB |
6214 | sdata->u.mgd.status_fc = fc; |
6215 | sdata->u.mgd.status_acked = acked; | |
6216 | sdata->u.mgd.status_received = true; | |
97634ef4 | 6217 | |
16114496 | 6218 | wiphy_work_queue(local->hw.wiphy, &sdata->work); |
61513162 | 6219 | } |
97634ef4 | 6220 | |
61513162 JB |
6221 | void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata) |
6222 | { | |
6223 | struct ieee80211_local *local = sdata->local; | |
6224 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
97634ef4 | 6225 | |
61513162 JB |
6226 | sdata_lock(sdata); |
6227 | ||
6228 | if (ifmgd->status_received) { | |
6229 | __le16 fc = ifmgd->status_fc; | |
6230 | bool status_acked = ifmgd->status_acked; | |
6231 | ||
6232 | ifmgd->status_received = false; | |
6233 | if (ifmgd->auth_data && ieee80211_is_auth(fc)) { | |
6234 | if (status_acked) { | |
6235 | if (ifmgd->auth_data->algorithm == | |
6236 | WLAN_AUTH_SAE) | |
6237 | ifmgd->auth_data->timeout = | |
6238 | jiffies + | |
6239 | IEEE80211_AUTH_TIMEOUT_SAE; | |
6240 | else | |
6241 | ifmgd->auth_data->timeout = | |
6242 | jiffies + | |
6243 | IEEE80211_AUTH_TIMEOUT_SHORT; | |
6244 | run_again(sdata, ifmgd->auth_data->timeout); | |
6245 | } else { | |
6246 | ifmgd->auth_data->timeout = jiffies - 1; | |
6247 | } | |
6248 | ifmgd->auth_data->timeout_started = true; | |
6249 | } else if (ifmgd->assoc_data && | |
6250 | (ieee80211_is_assoc_req(fc) || | |
6251 | ieee80211_is_reassoc_req(fc))) { | |
6252 | if (status_acked) { | |
6253 | ifmgd->assoc_data->timeout = | |
6254 | jiffies + IEEE80211_ASSOC_TIMEOUT_SHORT; | |
6255 | run_again(sdata, ifmgd->assoc_data->timeout); | |
6256 | } else { | |
6257 | ifmgd->assoc_data->timeout = jiffies - 1; | |
6258 | } | |
6259 | ifmgd->assoc_data->timeout_started = true; | |
97634ef4 MG |
6260 | } |
6261 | } | |
6262 | ||
61513162 JB |
6263 | if (ifmgd->auth_data && ifmgd->auth_data->timeout_started && |
6264 | time_after(jiffies, ifmgd->auth_data->timeout)) { | |
6265 | if (ifmgd->auth_data->done || ifmgd->auth_data->waiting) { | |
6266 | /* | |
6267 | * ok ... we waited for assoc or continuation but | |
6268 | * userspace didn't do it, so kill the auth data | |
6269 | */ | |
6270 | ieee80211_destroy_auth_data(sdata, false); | |
6271 | } else if (ieee80211_auth(sdata)) { | |
81151ce4 | 6272 | u8 ap_addr[ETH_ALEN]; |
61513162 JB |
6273 | struct ieee80211_event event = { |
6274 | .type = MLME_EVENT, | |
6275 | .u.mlme.data = AUTH_EVENT, | |
6276 | .u.mlme.status = MLME_TIMEOUT, | |
6277 | }; | |
6278 | ||
81151ce4 | 6279 | memcpy(ap_addr, ifmgd->auth_data->ap_addr, ETH_ALEN); |
97634ef4 | 6280 | |
61513162 | 6281 | ieee80211_destroy_auth_data(sdata, false); |
41cbb0f5 | 6282 | |
81151ce4 | 6283 | cfg80211_auth_timeout(sdata->dev, ap_addr); |
61513162 JB |
6284 | drv_event_callback(sdata->local, sdata, &event); |
6285 | } | |
6286 | } else if (ifmgd->auth_data && ifmgd->auth_data->timeout_started) | |
6287 | run_again(sdata, ifmgd->auth_data->timeout); | |
41cbb0f5 | 6288 | |
61513162 JB |
6289 | if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started && |
6290 | time_after(jiffies, ifmgd->assoc_data->timeout)) { | |
6291 | if ((ifmgd->assoc_data->need_beacon && | |
6292 | !sdata->deflink.u.mgd.have_beacon) || | |
6293 | ieee80211_do_assoc(sdata)) { | |
6294 | struct ieee80211_event event = { | |
6295 | .type = MLME_EVENT, | |
6296 | .u.mlme.data = ASSOC_EVENT, | |
6297 | .u.mlme.status = MLME_TIMEOUT, | |
6298 | }; | |
47aa7861 | 6299 | |
61513162 JB |
6300 | ieee80211_destroy_assoc_data(sdata, ASSOC_TIMEOUT); |
6301 | drv_event_callback(sdata->local, sdata, &event); | |
6302 | } | |
6303 | } else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started) | |
6304 | run_again(sdata, ifmgd->assoc_data->timeout); | |
41cbb0f5 | 6305 | |
61513162 JB |
6306 | if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL && |
6307 | ifmgd->associated) { | |
6308 | u8 *bssid = sdata->deflink.u.mgd.bssid; | |
6309 | int max_tries; | |
41cbb0f5 | 6310 | |
61513162 JB |
6311 | if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) |
6312 | max_tries = max_nullfunc_tries; | |
6313 | else | |
6314 | max_tries = max_probe_tries; | |
41cbb0f5 | 6315 | |
61513162 JB |
6316 | /* ACK received for nullfunc probing frame */ |
6317 | if (!ifmgd->probe_send_count) | |
6318 | ieee80211_reset_ap_probe(sdata); | |
6319 | else if (ifmgd->nullfunc_failed) { | |
6320 | if (ifmgd->probe_send_count < max_tries) { | |
6321 | mlme_dbg(sdata, | |
6322 | "No ack for nullfunc frame to AP %pM, try %d/%i\n", | |
6323 | bssid, ifmgd->probe_send_count, | |
6324 | max_tries); | |
6325 | ieee80211_mgd_probe_ap_send(sdata); | |
6326 | } else { | |
6327 | mlme_dbg(sdata, | |
6328 | "No ack for nullfunc frame to AP %pM, disconnecting.\n", | |
6329 | bssid); | |
6330 | ieee80211_sta_connection_lost(sdata, | |
6331 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, | |
6332 | false); | |
6333 | } | |
6334 | } else if (time_is_after_jiffies(ifmgd->probe_timeout)) | |
6335 | run_again(sdata, ifmgd->probe_timeout); | |
6336 | else if (ieee80211_hw_check(&local->hw, REPORTS_TX_ACK_STATUS)) { | |
6337 | mlme_dbg(sdata, | |
6338 | "Failed to send nullfunc to AP %pM after %dms, disconnecting\n", | |
6339 | bssid, probe_wait_ms); | |
6340 | ieee80211_sta_connection_lost(sdata, | |
6341 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false); | |
6342 | } else if (ifmgd->probe_send_count < max_tries) { | |
6343 | mlme_dbg(sdata, | |
6344 | "No probe response from AP %pM after %dms, try %d/%i\n", | |
6345 | bssid, probe_wait_ms, | |
6346 | ifmgd->probe_send_count, max_tries); | |
6347 | ieee80211_mgd_probe_ap_send(sdata); | |
6348 | } else { | |
41cbb0f5 | 6349 | /* |
61513162 JB |
6350 | * We actually lost the connection ... or did we? |
6351 | * Let's make sure! | |
41cbb0f5 | 6352 | */ |
61513162 JB |
6353 | mlme_dbg(sdata, |
6354 | "No probe response from AP %pM after %dms, disconnecting.\n", | |
6355 | bssid, probe_wait_ms); | |
41cbb0f5 | 6356 | |
61513162 JB |
6357 | ieee80211_sta_connection_lost(sdata, |
6358 | WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, false); | |
6359 | } | |
41cbb0f5 LC |
6360 | } |
6361 | ||
61513162 | 6362 | sdata_unlock(sdata); |
41cbb0f5 LC |
6363 | } |
6364 | ||
61513162 | 6365 | static void ieee80211_sta_bcn_mon_timer(struct timer_list *t) |
a1cf775d | 6366 | { |
61513162 JB |
6367 | struct ieee80211_sub_if_data *sdata = |
6368 | from_timer(sdata, t, u.mgd.bcn_mon_timer); | |
37123c3b | 6369 | |
f1871abd | 6370 | if (WARN_ON(ieee80211_vif_is_mld(&sdata->vif))) |
61513162 | 6371 | return; |
24398e39 | 6372 | |
61513162 JB |
6373 | if (sdata->vif.bss_conf.csa_active && |
6374 | !sdata->deflink.u.mgd.csa_waiting_bcn) | |
6375 | return; | |
f2d9d270 | 6376 | |
61513162 JB |
6377 | if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER) |
6378 | return; | |
75e296e9 | 6379 | |
61513162 | 6380 | sdata->u.mgd.connection_loss = false; |
4b8d43f1 JB |
6381 | wiphy_work_queue(sdata->local->hw.wiphy, |
6382 | &sdata->u.mgd.beacon_connection_loss_work); | |
61513162 | 6383 | } |
75e296e9 | 6384 | |
61513162 JB |
6385 | static void ieee80211_sta_conn_mon_timer(struct timer_list *t) |
6386 | { | |
6387 | struct ieee80211_sub_if_data *sdata = | |
6388 | from_timer(sdata, t, u.mgd.conn_mon_timer); | |
6389 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
6390 | struct ieee80211_local *local = sdata->local; | |
6391 | struct sta_info *sta; | |
6392 | unsigned long timeout; | |
5dca295d | 6393 | |
f1871abd | 6394 | if (WARN_ON(ieee80211_vif_is_mld(&sdata->vif))) |
61513162 | 6395 | return; |
75e296e9 | 6396 | |
61513162 JB |
6397 | if (sdata->vif.bss_conf.csa_active && |
6398 | !sdata->deflink.u.mgd.csa_waiting_bcn) | |
6399 | return; | |
53b954ee | 6400 | |
61513162 JB |
6401 | sta = sta_info_get(sdata, sdata->vif.cfg.ap_addr); |
6402 | if (!sta) | |
6403 | return; | |
24398e39 | 6404 | |
61513162 JB |
6405 | timeout = sta->deflink.status_stats.last_ack; |
6406 | if (time_before(sta->deflink.status_stats.last_ack, sta->deflink.rx_stats.last_rx)) | |
6407 | timeout = sta->deflink.rx_stats.last_rx; | |
6408 | timeout += IEEE80211_CONNECTION_IDLE_TIME; | |
08e6effa | 6409 | |
61513162 JB |
6410 | /* If timeout is after now, then update timer to fire at |
6411 | * the later date, but do not actually probe at this time. | |
6412 | */ | |
6413 | if (time_is_after_jiffies(timeout)) { | |
6414 | mod_timer(&ifmgd->conn_mon_timer, round_jiffies_up(timeout)); | |
6415 | return; | |
24398e39 JB |
6416 | } |
6417 | ||
61513162 JB |
6418 | ieee80211_queue_work(&local->hw, &ifmgd->monitor_work); |
6419 | } | |
41cbb0f5 | 6420 | |
61513162 JB |
6421 | static void ieee80211_sta_monitor_work(struct work_struct *work) |
6422 | { | |
6423 | struct ieee80211_sub_if_data *sdata = | |
6424 | container_of(work, struct ieee80211_sub_if_data, | |
6425 | u.mgd.monitor_work); | |
63214f02 | 6426 | |
61513162 JB |
6427 | ieee80211_mgd_probe_ap(sdata, false); |
6428 | } | |
63214f02 | 6429 | |
61513162 JB |
6430 | static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata) |
6431 | { | |
6432 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { | |
6433 | __ieee80211_stop_poll(sdata); | |
63214f02 | 6434 | |
61513162 JB |
6435 | /* let's probe the connection once */ |
6436 | if (!ieee80211_hw_check(&sdata->local->hw, CONNECTION_MONITOR)) | |
6437 | ieee80211_queue_work(&sdata->local->hw, | |
6438 | &sdata->u.mgd.monitor_work); | |
6439 | } | |
6440 | } | |
63214f02 | 6441 | |
61513162 JB |
6442 | #ifdef CONFIG_PM |
6443 | void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata) | |
6444 | { | |
6445 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
6446 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; | |
63214f02 | 6447 | |
61513162 | 6448 | sdata_lock(sdata); |
63214f02 | 6449 | |
61513162 | 6450 | if (ifmgd->auth_data || ifmgd->assoc_data) { |
81151ce4 JB |
6451 | const u8 *ap_addr = ifmgd->auth_data ? |
6452 | ifmgd->auth_data->ap_addr : | |
6453 | ifmgd->assoc_data->ap_addr; | |
61513162 JB |
6454 | |
6455 | /* | |
6456 | * If we are trying to authenticate / associate while suspending, | |
6457 | * cfg80211 won't know and won't actually abort those attempts, | |
6458 | * thus we need to do that ourselves. | |
6459 | */ | |
81151ce4 | 6460 | ieee80211_send_deauth_disassoc(sdata, ap_addr, ap_addr, |
61513162 JB |
6461 | IEEE80211_STYPE_DEAUTH, |
6462 | WLAN_REASON_DEAUTH_LEAVING, | |
6463 | false, frame_buf); | |
6464 | if (ifmgd->assoc_data) | |
6465 | ieee80211_destroy_assoc_data(sdata, ASSOC_ABANDON); | |
6466 | if (ifmgd->auth_data) | |
6467 | ieee80211_destroy_auth_data(sdata, false); | |
6468 | cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf, | |
6469 | IEEE80211_DEAUTH_FRAME_LEN, | |
6470 | false); | |
5dca295d IP |
6471 | } |
6472 | ||
61513162 JB |
6473 | /* This is a bit of a hack - we should find a better and more generic |
6474 | * solution to this. Normally when suspending, cfg80211 will in fact | |
6475 | * deauthenticate. However, it doesn't (and cannot) stop an ongoing | |
6476 | * auth (not so important) or assoc (this is the problem) process. | |
6477 | * | |
6478 | * As a consequence, it can happen that we are in the process of both | |
6479 | * associating and suspending, and receive an association response | |
6480 | * after cfg80211 has checked if it needs to disconnect, but before | |
6481 | * we actually set the flag to drop incoming frames. This will then | |
6482 | * cause the workqueue flush to process the association response in | |
6483 | * the suspend, resulting in a successful association just before it | |
6484 | * tries to remove the interface from the driver, which now though | |
6485 | * has a channel context assigned ... this results in issues. | |
6486 | * | |
6487 | * To work around this (for now) simply deauth here again if we're | |
6488 | * now connected. | |
5dca295d | 6489 | */ |
61513162 JB |
6490 | if (ifmgd->associated && !sdata->local->wowlan) { |
6491 | u8 bssid[ETH_ALEN]; | |
6492 | struct cfg80211_deauth_request req = { | |
6493 | .reason_code = WLAN_REASON_DEAUTH_LEAVING, | |
6494 | .bssid = bssid, | |
6495 | }; | |
5dca295d | 6496 | |
61513162 JB |
6497 | memcpy(bssid, sdata->vif.cfg.ap_addr, ETH_ALEN); |
6498 | ieee80211_mgd_deauth(sdata, &req); | |
41cbb0f5 LC |
6499 | } |
6500 | ||
61513162 JB |
6501 | sdata_unlock(sdata); |
6502 | } | |
6503 | #endif | |
52a45f38 | 6504 | |
61513162 JB |
6505 | void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata) |
6506 | { | |
6507 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
6508 | ||
6509 | sdata_lock(sdata); | |
6510 | if (!ifmgd->associated) { | |
6511 | sdata_unlock(sdata); | |
6512 | return; | |
52a45f38 AN |
6513 | } |
6514 | ||
61513162 JB |
6515 | if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) { |
6516 | sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME; | |
6517 | mlme_dbg(sdata, "driver requested disconnect after resume\n"); | |
6518 | ieee80211_sta_connection_lost(sdata, | |
6519 | WLAN_REASON_UNSPECIFIED, | |
6520 | true); | |
6521 | sdata_unlock(sdata); | |
6522 | return; | |
636ccdae | 6523 | } |
52a45f38 | 6524 | |
61513162 JB |
6525 | if (sdata->flags & IEEE80211_SDATA_DISCONNECT_HW_RESTART) { |
6526 | sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_HW_RESTART; | |
6527 | mlme_dbg(sdata, "driver requested disconnect after hardware restart\n"); | |
6528 | ieee80211_sta_connection_lost(sdata, | |
6529 | WLAN_REASON_UNSPECIFIED, | |
6530 | true); | |
6531 | sdata_unlock(sdata); | |
6532 | return; | |
1d00ce80 TP |
6533 | } |
6534 | ||
61513162 JB |
6535 | sdata_unlock(sdata); |
6536 | } | |
04ecd257 | 6537 | |
1444f589 JB |
6538 | static void ieee80211_request_smps_mgd_work(struct wiphy *wiphy, |
6539 | struct wiphy_work *work) | |
61513162 JB |
6540 | { |
6541 | struct ieee80211_link_data *link = | |
6542 | container_of(work, struct ieee80211_link_data, | |
6543 | u.mgd.request_smps_work); | |
24398e39 | 6544 | |
61513162 JB |
6545 | sdata_lock(link->sdata); |
6546 | __ieee80211_request_smps_mgd(link->sdata, link, | |
6547 | link->u.mgd.driver_smps_mode); | |
6548 | sdata_unlock(link->sdata); | |
6549 | } | |
9caf0364 | 6550 | |
61513162 JB |
6551 | /* interface setup */ |
6552 | void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata) | |
6553 | { | |
6554 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
57fa5e85 | 6555 | |
61513162 | 6556 | INIT_WORK(&ifmgd->monitor_work, ieee80211_sta_monitor_work); |
4b8d43f1 JB |
6557 | wiphy_work_init(&ifmgd->beacon_connection_loss_work, |
6558 | ieee80211_beacon_connection_loss_work); | |
6559 | wiphy_work_init(&ifmgd->csa_connection_drop_work, | |
6560 | ieee80211_csa_connection_drop_work); | |
61513162 JB |
6561 | INIT_DELAYED_WORK(&ifmgd->tdls_peer_del_work, |
6562 | ieee80211_tdls_peer_del_work); | |
6563 | timer_setup(&ifmgd->timer, ieee80211_sta_timer, 0); | |
6564 | timer_setup(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer, 0); | |
6565 | timer_setup(&ifmgd->conn_mon_timer, ieee80211_sta_conn_mon_timer, 0); | |
6566 | INIT_DELAYED_WORK(&ifmgd->tx_tspec_wk, | |
6567 | ieee80211_sta_handle_tspec_ac_params_wk); | |
04ecd257 | 6568 | |
61513162 JB |
6569 | ifmgd->flags = 0; |
6570 | ifmgd->powersave = sdata->wdev.ps; | |
6571 | ifmgd->uapsd_queues = sdata->local->hw.uapsd_queues; | |
6572 | ifmgd->uapsd_max_sp_len = sdata->local->hw.uapsd_max_sp_len; | |
6573 | /* Setup TDLS data */ | |
6574 | spin_lock_init(&ifmgd->teardown_lock); | |
6575 | ifmgd->teardown_skb = NULL; | |
6576 | ifmgd->orig_teardown_skb = NULL; | |
6577 | } | |
0418a445 | 6578 | |
61513162 JB |
6579 | void ieee80211_mgd_setup_link(struct ieee80211_link_data *link) |
6580 | { | |
81151ce4 JB |
6581 | struct ieee80211_sub_if_data *sdata = link->sdata; |
6582 | struct ieee80211_local *local = sdata->local; | |
6583 | unsigned int link_id = link->link_id; | |
0418a445 | 6584 | |
61513162 JB |
6585 | link->u.mgd.p2p_noa_index = -1; |
6586 | link->u.mgd.conn_flags = 0; | |
6587 | link->conf->bssid = link->u.mgd.bssid; | |
6588 | ||
1444f589 JB |
6589 | wiphy_work_init(&link->u.mgd.request_smps_work, |
6590 | ieee80211_request_smps_mgd_work); | |
61513162 JB |
6591 | if (local->hw.wiphy->features & NL80211_FEATURE_DYNAMIC_SMPS) |
6592 | link->u.mgd.req_smps = IEEE80211_SMPS_AUTOMATIC; | |
6593 | else | |
6594 | link->u.mgd.req_smps = IEEE80211_SMPS_OFF; | |
6595 | ||
ec3252bf JB |
6596 | wiphy_delayed_work_init(&link->u.mgd.chswitch_work, |
6597 | ieee80211_chswitch_work); | |
81151ce4 JB |
6598 | |
6599 | if (sdata->u.mgd.assoc_data) | |
6600 | ether_addr_copy(link->conf->addr, | |
6601 | sdata->u.mgd.assoc_data->link[link_id].addr); | |
acdc3e47 JB |
6602 | else if (!is_valid_ether_addr(link->conf->addr)) |
6603 | eth_random_addr(link->conf->addr); | |
61513162 JB |
6604 | } |
6605 | ||
6606 | /* scan finished notification */ | |
6607 | void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local) | |
6608 | { | |
6609 | struct ieee80211_sub_if_data *sdata; | |
6610 | ||
6611 | /* Restart STA timers */ | |
6612 | rcu_read_lock(); | |
6613 | list_for_each_entry_rcu(sdata, &local->interfaces, list) { | |
6614 | if (ieee80211_sdata_running(sdata)) | |
6615 | ieee80211_restart_sta_timer(sdata); | |
d601cd8d | 6616 | } |
61513162 | 6617 | rcu_read_unlock(); |
b17166a7 JB |
6618 | } |
6619 | ||
6620 | static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, | |
81151ce4 JB |
6621 | struct cfg80211_bss *cbss, s8 link_id, |
6622 | const u8 *ap_mld_addr, bool assoc, | |
c1041f10 | 6623 | bool override) |
b17166a7 JB |
6624 | { |
6625 | struct ieee80211_local *local = sdata->local; | |
6626 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
6627 | struct ieee80211_bss *bss = (void *)cbss->priv; | |
6628 | struct sta_info *new_sta = NULL; | |
81151ce4 | 6629 | struct ieee80211_link_data *link; |
c1041f10 | 6630 | bool have_sta = false; |
81151ce4 | 6631 | bool mlo; |
b17166a7 JB |
6632 | int err; |
6633 | ||
81151ce4 JB |
6634 | if (link_id >= 0) { |
6635 | mlo = true; | |
6636 | if (WARN_ON(!ap_mld_addr)) | |
6637 | return -EINVAL; | |
6d543b34 | 6638 | err = ieee80211_vif_set_links(sdata, BIT(link_id), 0); |
81151ce4 JB |
6639 | } else { |
6640 | if (WARN_ON(ap_mld_addr)) | |
6641 | return -EINVAL; | |
6642 | ap_mld_addr = cbss->bssid; | |
6d543b34 | 6643 | err = ieee80211_vif_set_links(sdata, 0, 0); |
81151ce4 JB |
6644 | link_id = 0; |
6645 | mlo = false; | |
6646 | } | |
6647 | ||
6648 | if (err) | |
6649 | return err; | |
6650 | ||
6651 | link = sdata_dereference(sdata->link[link_id], sdata); | |
6652 | if (WARN_ON(!link)) { | |
6653 | err = -ENOLINK; | |
6654 | goto out_err; | |
6655 | } | |
6656 | ||
81151ce4 JB |
6657 | if (WARN_ON(!ifmgd->auth_data && !ifmgd->assoc_data)) { |
6658 | err = -EINVAL; | |
6659 | goto out_err; | |
6660 | } | |
b17166a7 | 6661 | |
f8860ce8 | 6662 | /* If a reconfig is happening, bail out */ |
81151ce4 JB |
6663 | if (local->in_reconfig) { |
6664 | err = -EBUSY; | |
6665 | goto out_err; | |
6666 | } | |
f8860ce8 | 6667 | |
b17166a7 JB |
6668 | if (assoc) { |
6669 | rcu_read_lock(); | |
81151ce4 | 6670 | have_sta = sta_info_get(sdata, ap_mld_addr); |
b17166a7 JB |
6671 | rcu_read_unlock(); |
6672 | } | |
6673 | ||
6674 | if (!have_sta) { | |
6d8e0f84 | 6675 | if (mlo) |
81151ce4 JB |
6676 | new_sta = sta_info_alloc_with_link(sdata, ap_mld_addr, |
6677 | link_id, cbss->bssid, | |
6678 | GFP_KERNEL); | |
6679 | else | |
6680 | new_sta = sta_info_alloc(sdata, ap_mld_addr, GFP_KERNEL); | |
6681 | ||
6682 | if (!new_sta) { | |
6683 | err = -ENOMEM; | |
6684 | goto out_err; | |
6685 | } | |
bd363ee5 | 6686 | |
6d8e0f84 | 6687 | new_sta->sta.mlo = mlo; |
b17166a7 | 6688 | } |
179b8fc7 | 6689 | |
c87905be JB |
6690 | /* |
6691 | * Set up the information for the new channel before setting the | |
6692 | * new channel. We can't - completely race-free - change the basic | |
6693 | * rates bitmap and the channel (sband) that it refers to, but if | |
6694 | * we set it up before we at least avoid calling into the driver's | |
6695 | * bss_info_changed() method with invalid information (since we do | |
6696 | * call that from changing the channel - only for IDLE and perhaps | |
6697 | * some others, but ...). | |
6698 | * | |
6699 | * So to avoid that, just set up all the new information before the | |
6700 | * channel, but tell the driver to apply it only afterwards, since | |
6701 | * it might need the new channel for that. | |
6702 | */ | |
13e0c8e3 | 6703 | if (new_sta) { |
8cef2c9d | 6704 | const struct cfg80211_bss_ies *ies; |
b18d87f5 | 6705 | struct link_sta_info *link_sta; |
81151ce4 JB |
6706 | |
6707 | rcu_read_lock(); | |
b18d87f5 | 6708 | link_sta = rcu_dereference(new_sta->link[link_id]); |
81151ce4 JB |
6709 | if (WARN_ON(!link_sta)) { |
6710 | rcu_read_unlock(); | |
6711 | sta_info_free(local, new_sta); | |
6712 | err = -EINVAL; | |
6713 | goto out_err; | |
6714 | } | |
5bd5666d | 6715 | |
bbe90107 JB |
6716 | err = ieee80211_mgd_setup_link_sta(link, new_sta, |
6717 | link_sta, cbss); | |
6718 | if (err) { | |
81151ce4 | 6719 | rcu_read_unlock(); |
302ff8b7 | 6720 | sta_info_free(local, new_sta); |
81151ce4 | 6721 | goto out_err; |
5d6a1b06 JB |
6722 | } |
6723 | ||
5bd5666d | 6724 | memcpy(link->u.mgd.bssid, cbss->bssid, ETH_ALEN); |
5d6a1b06 | 6725 | |
8c358bcd | 6726 | /* set timing information */ |
5bd5666d | 6727 | link->conf->beacon_int = cbss->beacon_interval; |
ef429dad JB |
6728 | ies = rcu_dereference(cbss->beacon_ies); |
6729 | if (ies) { | |
5bd5666d JB |
6730 | link->conf->sync_tsf = ies->tsf; |
6731 | link->conf->sync_device_ts = | |
ef429dad | 6732 | bss->device_ts_beacon; |
78ac51f8 SS |
6733 | |
6734 | ieee80211_get_dtim(ies, | |
5bd5666d | 6735 | &link->conf->sync_dtim_count, |
78ac51f8 | 6736 | NULL); |
30686bf7 JB |
6737 | } else if (!ieee80211_hw_check(&sdata->local->hw, |
6738 | TIMING_BEACON_ONLY)) { | |
ef429dad JB |
6739 | ies = rcu_dereference(cbss->proberesp_ies); |
6740 | /* must be non-NULL since beacon IEs were NULL */ | |
5bd5666d JB |
6741 | link->conf->sync_tsf = ies->tsf; |
6742 | link->conf->sync_device_ts = | |
ef429dad | 6743 | bss->device_ts_presp; |
5bd5666d | 6744 | link->conf->sync_dtim_count = 0; |
ef429dad | 6745 | } else { |
5bd5666d JB |
6746 | link->conf->sync_tsf = 0; |
6747 | link->conf->sync_device_ts = 0; | |
6748 | link->conf->sync_dtim_count = 0; | |
ef429dad | 6749 | } |
8cef2c9d | 6750 | rcu_read_unlock(); |
c87905be | 6751 | } |
8c358bcd | 6752 | |
c87905be | 6753 | if (new_sta || override) { |
7781f0d8 JB |
6754 | err = ieee80211_prep_channel(sdata, link, cbss, |
6755 | &link->u.mgd.conn_flags); | |
c87905be JB |
6756 | if (err) { |
6757 | if (new_sta) | |
6758 | sta_info_free(local, new_sta); | |
81151ce4 | 6759 | goto out_err; |
c87905be JB |
6760 | } |
6761 | } | |
6762 | ||
6763 | if (new_sta) { | |
6764 | /* | |
6765 | * tell driver about BSSID, basic rates and timing | |
6766 | * this was set up above, before setting the channel | |
6767 | */ | |
5bd5666d | 6768 | ieee80211_link_info_change_notify(sdata, link, |
d8675a63 JB |
6769 | BSS_CHANGED_BSSID | |
6770 | BSS_CHANGED_BASIC_RATES | | |
6771 | BSS_CHANGED_BEACON_INT); | |
a1cf775d JB |
6772 | |
6773 | if (assoc) | |
13e0c8e3 | 6774 | sta_info_pre_move_state(new_sta, IEEE80211_STA_AUTH); |
a1cf775d | 6775 | |
13e0c8e3 JB |
6776 | err = sta_info_insert(new_sta); |
6777 | new_sta = NULL; | |
a1cf775d | 6778 | if (err) { |
bdcbd8e0 JB |
6779 | sdata_info(sdata, |
6780 | "failed to insert STA entry for the AP (error %d)\n", | |
6781 | err); | |
81151ce4 | 6782 | goto out_err; |
a1cf775d JB |
6783 | } |
6784 | } else | |
5bd5666d | 6785 | WARN_ON_ONCE(!ether_addr_equal(link->u.mgd.bssid, cbss->bssid)); |
a1cf775d | 6786 | |
7d830a19 DS |
6787 | /* Cancel scan to ensure that nothing interferes with connection */ |
6788 | if (local->scanning) | |
6789 | ieee80211_scan_cancel(local); | |
6790 | ||
a1cf775d | 6791 | return 0; |
81151ce4 JB |
6792 | |
6793 | out_err: | |
7a2c6d16 | 6794 | ieee80211_link_release_channel(&sdata->deflink); |
6d543b34 | 6795 | ieee80211_vif_set_links(sdata, 0, 0); |
81151ce4 | 6796 | return err; |
a1cf775d JB |
6797 | } |
6798 | ||
77fdaa12 JB |
6799 | /* config hooks */ |
6800 | int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, | |
6801 | struct cfg80211_auth_request *req) | |
9c6bd790 | 6802 | { |
66e67e41 JB |
6803 | struct ieee80211_local *local = sdata->local; |
6804 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
6805 | struct ieee80211_mgd_auth_data *auth_data; | |
77fdaa12 | 6806 | u16 auth_alg; |
66e67e41 | 6807 | int err; |
efb543e6 | 6808 | bool cont_auth; |
66e67e41 JB |
6809 | |
6810 | /* prepare auth data structure */ | |
9c6bd790 | 6811 | |
77fdaa12 JB |
6812 | switch (req->auth_type) { |
6813 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
6814 | auth_alg = WLAN_AUTH_OPEN; | |
6815 | break; | |
6816 | case NL80211_AUTHTYPE_SHARED_KEY: | |
5fdb3735 | 6817 | if (fips_enabled) |
9dca9c49 | 6818 | return -EOPNOTSUPP; |
77fdaa12 JB |
6819 | auth_alg = WLAN_AUTH_SHARED_KEY; |
6820 | break; | |
6821 | case NL80211_AUTHTYPE_FT: | |
6822 | auth_alg = WLAN_AUTH_FT; | |
6823 | break; | |
6824 | case NL80211_AUTHTYPE_NETWORK_EAP: | |
6825 | auth_alg = WLAN_AUTH_LEAP; | |
6826 | break; | |
6b8ece3a JM |
6827 | case NL80211_AUTHTYPE_SAE: |
6828 | auth_alg = WLAN_AUTH_SAE; | |
6829 | break; | |
dbc0c2cb JM |
6830 | case NL80211_AUTHTYPE_FILS_SK: |
6831 | auth_alg = WLAN_AUTH_FILS_SK; | |
6832 | break; | |
6833 | case NL80211_AUTHTYPE_FILS_SK_PFS: | |
6834 | auth_alg = WLAN_AUTH_FILS_SK_PFS; | |
6835 | break; | |
6836 | case NL80211_AUTHTYPE_FILS_PK: | |
6837 | auth_alg = WLAN_AUTH_FILS_PK; | |
6838 | break; | |
77fdaa12 JB |
6839 | default: |
6840 | return -EOPNOTSUPP; | |
60f8b39c | 6841 | } |
77fdaa12 | 6842 | |
efb543e6 | 6843 | if (ifmgd->assoc_data) |
8d7432a2 JM |
6844 | return -EBUSY; |
6845 | ||
11b6b5a4 | 6846 | auth_data = kzalloc(sizeof(*auth_data) + req->auth_data_len + |
6b8ece3a | 6847 | req->ie_len, GFP_KERNEL); |
66e67e41 | 6848 | if (!auth_data) |
9c6bd790 | 6849 | return -ENOMEM; |
77fdaa12 | 6850 | |
81151ce4 JB |
6851 | memcpy(auth_data->ap_addr, |
6852 | req->ap_mld_addr ?: req->bss->bssid, | |
6853 | ETH_ALEN); | |
66e67e41 | 6854 | auth_data->bss = req->bss; |
85176a3f | 6855 | auth_data->link_id = req->link_id; |
77fdaa12 | 6856 | |
11b6b5a4 | 6857 | if (req->auth_data_len >= 4) { |
6ec63612 JM |
6858 | if (req->auth_type == NL80211_AUTHTYPE_SAE) { |
6859 | __le16 *pos = (__le16 *) req->auth_data; | |
6860 | ||
6861 | auth_data->sae_trans = le16_to_cpu(pos[0]); | |
6862 | auth_data->sae_status = le16_to_cpu(pos[1]); | |
6863 | } | |
11b6b5a4 JM |
6864 | memcpy(auth_data->data, req->auth_data + 4, |
6865 | req->auth_data_len - 4); | |
6866 | auth_data->data_len += req->auth_data_len - 4; | |
6b8ece3a JM |
6867 | } |
6868 | ||
efb543e6 JM |
6869 | /* Check if continuing authentication or trying to authenticate with the |
6870 | * same BSS that we were in the process of authenticating with and avoid | |
6871 | * removal and re-addition of the STA entry in | |
6872 | * ieee80211_prep_connection(). | |
6873 | */ | |
85176a3f JB |
6874 | cont_auth = ifmgd->auth_data && req->bss == ifmgd->auth_data->bss && |
6875 | ifmgd->auth_data->link_id == req->link_id; | |
efb543e6 | 6876 | |
77fdaa12 | 6877 | if (req->ie && req->ie_len) { |
6b8ece3a JM |
6878 | memcpy(&auth_data->data[auth_data->data_len], |
6879 | req->ie, req->ie_len); | |
6880 | auth_data->data_len += req->ie_len; | |
9c6bd790 | 6881 | } |
77fdaa12 | 6882 | |
fffd0934 | 6883 | if (req->key && req->key_len) { |
66e67e41 JB |
6884 | auth_data->key_len = req->key_len; |
6885 | auth_data->key_idx = req->key_idx; | |
6886 | memcpy(auth_data->key, req->key, req->key_len); | |
fffd0934 JB |
6887 | } |
6888 | ||
66e67e41 | 6889 | auth_data->algorithm = auth_alg; |
60f8b39c | 6890 | |
66e67e41 | 6891 | /* try to authenticate/probe */ |
2a33bee2 | 6892 | |
efb543e6 JM |
6893 | if (ifmgd->auth_data) { |
6894 | if (cont_auth && req->auth_type == NL80211_AUTHTYPE_SAE) { | |
6895 | auth_data->peer_confirmed = | |
6896 | ifmgd->auth_data->peer_confirmed; | |
6897 | } | |
6898 | ieee80211_destroy_auth_data(sdata, cont_auth); | |
6899 | } | |
2a33bee2 | 6900 | |
66e67e41 JB |
6901 | /* prep auth_data so we don't go into idle on disassoc */ |
6902 | ifmgd->auth_data = auth_data; | |
af6b6374 | 6903 | |
efb543e6 JM |
6904 | /* If this is continuation of an ongoing SAE authentication exchange |
6905 | * (i.e., request to send SAE Confirm) and the peer has already | |
6906 | * confirmed, mark authentication completed since we are about to send | |
6907 | * out SAE Confirm. | |
6908 | */ | |
6909 | if (cont_auth && req->auth_type == NL80211_AUTHTYPE_SAE && | |
6910 | auth_data->peer_confirmed && auth_data->sae_trans == 2) | |
a857c21e | 6911 | ieee80211_mark_sta_auth(sdata); |
efb543e6 | 6912 | |
7b119dc0 JB |
6913 | if (ifmgd->associated) { |
6914 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; | |
6915 | ||
89f774e6 JB |
6916 | sdata_info(sdata, |
6917 | "disconnect from AP %pM for new auth to %pM\n", | |
81151ce4 | 6918 | sdata->vif.cfg.ap_addr, auth_data->ap_addr); |
7b119dc0 JB |
6919 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
6920 | WLAN_REASON_UNSPECIFIED, | |
6921 | false, frame_buf); | |
6922 | ||
a90faa9d EG |
6923 | ieee80211_report_disconnect(sdata, frame_buf, |
6924 | sizeof(frame_buf), true, | |
3f8a39ff JB |
6925 | WLAN_REASON_UNSPECIFIED, |
6926 | false); | |
7b119dc0 | 6927 | } |
af6b6374 | 6928 | |
81151ce4 | 6929 | sdata_info(sdata, "authenticate with %pM\n", auth_data->ap_addr); |
e5b900d2 | 6930 | |
4ca04ed3 JB |
6931 | /* needed for transmitting the auth frame(s) properly */ |
6932 | memcpy(sdata->vif.cfg.ap_addr, auth_data->ap_addr, ETH_ALEN); | |
6933 | ||
81151ce4 JB |
6934 | err = ieee80211_prep_connection(sdata, req->bss, req->link_id, |
6935 | req->ap_mld_addr, cont_auth, false); | |
a1cf775d | 6936 | if (err) |
66e67e41 | 6937 | goto err_clear; |
af6b6374 | 6938 | |
46cad4b7 | 6939 | err = ieee80211_auth(sdata); |
66e67e41 | 6940 | if (err) { |
81151ce4 | 6941 | sta_info_destroy_addr(sdata, auth_data->ap_addr); |
66e67e41 JB |
6942 | goto err_clear; |
6943 | } | |
6944 | ||
6945 | /* hold our own reference */ | |
5b112d3d | 6946 | cfg80211_ref_bss(local->hw.wiphy, auth_data->bss); |
8d61ffa5 | 6947 | return 0; |
66e67e41 JB |
6948 | |
6949 | err_clear: | |
f1871abd | 6950 | if (!ieee80211_vif_is_mld(&sdata->vif)) { |
81151ce4 JB |
6951 | eth_zero_addr(sdata->deflink.u.mgd.bssid); |
6952 | ieee80211_link_info_change_notify(sdata, &sdata->deflink, | |
6953 | BSS_CHANGED_BSSID); | |
6954 | mutex_lock(&sdata->local->mtx); | |
6955 | ieee80211_link_release_channel(&sdata->deflink); | |
6956 | mutex_unlock(&sdata->local->mtx); | |
6957 | } | |
66e67e41 | 6958 | ifmgd->auth_data = NULL; |
66e67e41 | 6959 | kfree(auth_data); |
66e67e41 | 6960 | return err; |
af6b6374 JB |
6961 | } |
6962 | ||
1845c1d4 JB |
6963 | static ieee80211_conn_flags_t |
6964 | ieee80211_setup_assoc_link(struct ieee80211_sub_if_data *sdata, | |
6965 | struct ieee80211_mgd_assoc_data *assoc_data, | |
6966 | struct cfg80211_assoc_request *req, | |
81151ce4 JB |
6967 | ieee80211_conn_flags_t conn_flags, |
6968 | unsigned int link_id) | |
1845c1d4 JB |
6969 | { |
6970 | struct ieee80211_local *local = sdata->local; | |
6971 | const struct cfg80211_bss_ies *beacon_ies; | |
6972 | struct ieee80211_supported_band *sband; | |
6973 | const struct element *ht_elem, *vht_elem; | |
81151ce4 JB |
6974 | struct ieee80211_link_data *link; |
6975 | struct cfg80211_bss *cbss; | |
6976 | struct ieee80211_bss *bss; | |
1845c1d4 JB |
6977 | bool is_5ghz, is_6ghz; |
6978 | ||
81151ce4 JB |
6979 | cbss = assoc_data->link[link_id].bss; |
6980 | if (WARN_ON(!cbss)) | |
6981 | return 0; | |
6982 | ||
6983 | bss = (void *)cbss->priv; | |
6984 | ||
1845c1d4 JB |
6985 | sband = local->hw.wiphy->bands[cbss->channel->band]; |
6986 | if (WARN_ON(!sband)) | |
81151ce4 JB |
6987 | return 0; |
6988 | ||
6989 | link = sdata_dereference(sdata->link[link_id], sdata); | |
6990 | if (WARN_ON(!link)) | |
6991 | return 0; | |
1845c1d4 JB |
6992 | |
6993 | is_5ghz = cbss->channel->band == NL80211_BAND_5GHZ; | |
6994 | is_6ghz = cbss->channel->band == NL80211_BAND_6GHZ; | |
6995 | ||
81151ce4 JB |
6996 | /* for MLO connections assume advertising all rates is OK */ |
6997 | if (!req->ap_mld_addr) { | |
6998 | assoc_data->supp_rates = bss->supp_rates; | |
6999 | assoc_data->supp_rates_len = bss->supp_rates_len; | |
7000 | } | |
7001 | ||
7002 | /* copy and link elems for the STA profile */ | |
7003 | if (req->links[link_id].elems_len) { | |
7004 | memcpy(assoc_data->ie_pos, req->links[link_id].elems, | |
7005 | req->links[link_id].elems_len); | |
7006 | assoc_data->link[link_id].elems = assoc_data->ie_pos; | |
7007 | assoc_data->link[link_id].elems_len = req->links[link_id].elems_len; | |
7008 | assoc_data->ie_pos += req->links[link_id].elems_len; | |
7009 | } | |
1845c1d4 JB |
7010 | |
7011 | rcu_read_lock(); | |
7012 | ht_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_HT_OPERATION); | |
7013 | if (ht_elem && ht_elem->datalen >= sizeof(struct ieee80211_ht_operation)) | |
81151ce4 | 7014 | assoc_data->link[link_id].ap_ht_param = |
1845c1d4 JB |
7015 | ((struct ieee80211_ht_operation *)(ht_elem->data))->ht_param; |
7016 | else if (!is_6ghz) | |
7017 | conn_flags |= IEEE80211_CONN_DISABLE_HT; | |
7018 | vht_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_VHT_CAPABILITY); | |
7019 | if (vht_elem && vht_elem->datalen >= sizeof(struct ieee80211_vht_cap)) { | |
81151ce4 | 7020 | memcpy(&assoc_data->link[link_id].ap_vht_cap, vht_elem->data, |
1845c1d4 JB |
7021 | sizeof(struct ieee80211_vht_cap)); |
7022 | } else if (is_5ghz) { | |
7023 | link_info(link, | |
7024 | "VHT capa missing/short, disabling VHT/HE/EHT\n"); | |
7025 | conn_flags |= IEEE80211_CONN_DISABLE_VHT | | |
7026 | IEEE80211_CONN_DISABLE_HE | | |
7027 | IEEE80211_CONN_DISABLE_EHT; | |
7028 | } | |
7029 | rcu_read_unlock(); | |
7030 | ||
7031 | link->u.mgd.beacon_crc_valid = false; | |
7032 | link->u.mgd.dtim_period = 0; | |
7033 | link->u.mgd.have_beacon = false; | |
7034 | ||
7035 | /* override HT/VHT configuration only if the AP and we support it */ | |
7036 | if (!(conn_flags & IEEE80211_CONN_DISABLE_HT)) { | |
7037 | struct ieee80211_sta_ht_cap sta_ht_cap; | |
7038 | ||
7039 | memcpy(&sta_ht_cap, &sband->ht_cap, sizeof(sta_ht_cap)); | |
7040 | ieee80211_apply_htcap_overrides(sdata, &sta_ht_cap); | |
7041 | } | |
7042 | ||
aa87cd8b JB |
7043 | link->conf->eht_puncturing = 0; |
7044 | ||
1845c1d4 JB |
7045 | rcu_read_lock(); |
7046 | beacon_ies = rcu_dereference(cbss->beacon_ies); | |
7047 | if (beacon_ies) { | |
aa87cd8b | 7048 | const struct ieee80211_eht_operation *eht_oper; |
1845c1d4 JB |
7049 | const struct element *elem; |
7050 | u8 dtim_count = 0; | |
7051 | ||
7052 | ieee80211_get_dtim(beacon_ies, &dtim_count, | |
7053 | &link->u.mgd.dtim_period); | |
7054 | ||
7055 | sdata->deflink.u.mgd.have_beacon = true; | |
7056 | ||
7057 | if (ieee80211_hw_check(&local->hw, TIMING_BEACON_ONLY)) { | |
7058 | link->conf->sync_tsf = beacon_ies->tsf; | |
7059 | link->conf->sync_device_ts = bss->device_ts_beacon; | |
7060 | link->conf->sync_dtim_count = dtim_count; | |
7061 | } | |
7062 | ||
7063 | elem = cfg80211_find_ext_elem(WLAN_EID_EXT_MULTIPLE_BSSID_CONFIGURATION, | |
7064 | beacon_ies->data, beacon_ies->len); | |
7065 | if (elem && elem->datalen >= 3) | |
7066 | link->conf->profile_periodicity = elem->data[2]; | |
7067 | else | |
7068 | link->conf->profile_periodicity = 0; | |
7069 | ||
7070 | elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, | |
7071 | beacon_ies->data, beacon_ies->len); | |
7072 | if (elem && elem->datalen >= 11 && | |
7073 | (elem->data[10] & WLAN_EXT_CAPA11_EMA_SUPPORT)) | |
7074 | link->conf->ema_ap = true; | |
7075 | else | |
7076 | link->conf->ema_ap = false; | |
aa87cd8b JB |
7077 | |
7078 | elem = cfg80211_find_ext_elem(WLAN_EID_EXT_EHT_OPERATION, | |
7079 | beacon_ies->data, beacon_ies->len); | |
7080 | eht_oper = (const void *)(elem->data + 1); | |
7081 | ||
7082 | if (elem && | |
7083 | ieee80211_eht_oper_size_ok((const void *)(elem->data + 1), | |
7084 | elem->datalen - 1) && | |
7085 | (eht_oper->params & IEEE80211_EHT_OPER_INFO_PRESENT) && | |
7086 | (eht_oper->params & IEEE80211_EHT_OPER_DISABLED_SUBCHANNEL_BITMAP_PRESENT)) { | |
7087 | const struct ieee80211_eht_operation_info *info = | |
7088 | (void *)eht_oper->optional; | |
7089 | const u8 *disable_subchannel_bitmap = info->optional; | |
7090 | u16 bitmap; | |
7091 | ||
7092 | bitmap = get_unaligned_le16(disable_subchannel_bitmap); | |
b25413fe AD |
7093 | if (cfg80211_valid_disable_subchannel_bitmap(&bitmap, |
7094 | &link->conf->chandef)) | |
aa87cd8b JB |
7095 | ieee80211_handle_puncturing_bitmap(link, |
7096 | eht_oper, | |
7097 | bitmap, | |
7098 | NULL); | |
7099 | else | |
7100 | conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
7101 | } | |
1845c1d4 JB |
7102 | } |
7103 | rcu_read_unlock(); | |
7104 | ||
7105 | if (bss->corrupt_data) { | |
7106 | char *corrupt_type = "data"; | |
7107 | ||
7108 | if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_BEACON) { | |
7109 | if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_PROBE_RESP) | |
7110 | corrupt_type = "beacon and probe response"; | |
7111 | else | |
7112 | corrupt_type = "beacon"; | |
7113 | } else if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_PROBE_RESP) { | |
7114 | corrupt_type = "probe response"; | |
7115 | } | |
7116 | sdata_info(sdata, "associating to AP %pM with corrupt %s\n", | |
7117 | cbss->bssid, corrupt_type); | |
7118 | } | |
7119 | ||
7120 | if (link->u.mgd.req_smps == IEEE80211_SMPS_AUTOMATIC) { | |
7121 | if (sdata->u.mgd.powersave) | |
7122 | link->smps_mode = IEEE80211_SMPS_DYNAMIC; | |
7123 | else | |
7124 | link->smps_mode = IEEE80211_SMPS_OFF; | |
7125 | } else { | |
7126 | link->smps_mode = link->u.mgd.req_smps; | |
7127 | } | |
7128 | ||
7129 | return conn_flags; | |
7130 | } | |
7131 | ||
77fdaa12 JB |
7132 | int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, |
7133 | struct cfg80211_assoc_request *req) | |
f0706e82 | 7134 | { |
81151ce4 | 7135 | unsigned int assoc_link_id = req->link_id < 0 ? 0 : req->link_id; |
66e67e41 | 7136 | struct ieee80211_local *local = sdata->local; |
77fdaa12 | 7137 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
66e67e41 | 7138 | struct ieee80211_mgd_assoc_data *assoc_data; |
1845c1d4 | 7139 | const struct element *ssid_elem; |
81151ce4 | 7140 | struct ieee80211_vif_cfg *vif_cfg = &sdata->vif.cfg; |
1845c1d4 | 7141 | ieee80211_conn_flags_t conn_flags = 0; |
81151ce4 JB |
7142 | struct ieee80211_link_data *link; |
7143 | struct cfg80211_bss *cbss; | |
7144 | struct ieee80211_bss *bss; | |
1845c1d4 | 7145 | bool override; |
81151ce4 JB |
7146 | int i, err; |
7147 | size_t size = sizeof(*assoc_data) + req->ie_len; | |
7148 | ||
7149 | for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) | |
7150 | size += req->links[i].elems_len; | |
7151 | ||
90703ba9 JB |
7152 | /* FIXME: no support for 4-addr MLO yet */ |
7153 | if (sdata->u.mgd.use_4addr && req->link_id >= 0) | |
7154 | return -EOPNOTSUPP; | |
7155 | ||
81151ce4 | 7156 | assoc_data = kzalloc(size, GFP_KERNEL); |
66e67e41 JB |
7157 | if (!assoc_data) |
7158 | return -ENOMEM; | |
7159 | ||
81151ce4 JB |
7160 | cbss = req->link_id < 0 ? req->bss : req->links[req->link_id].bss; |
7161 | ||
9caf0364 | 7162 | rcu_read_lock(); |
81151ce4 | 7163 | ssid_elem = ieee80211_bss_get_elem(cbss, WLAN_EID_SSID); |
f2622138 | 7164 | if (!ssid_elem || ssid_elem->datalen > sizeof(assoc_data->ssid)) { |
9caf0364 JB |
7165 | rcu_read_unlock(); |
7166 | kfree(assoc_data); | |
7167 | return -EINVAL; | |
7168 | } | |
f2622138 JB |
7169 | memcpy(assoc_data->ssid, ssid_elem->data, ssid_elem->datalen); |
7170 | assoc_data->ssid_len = ssid_elem->datalen; | |
f276e20b JB |
7171 | memcpy(vif_cfg->ssid, assoc_data->ssid, assoc_data->ssid_len); |
7172 | vif_cfg->ssid_len = assoc_data->ssid_len; | |
9caf0364 JB |
7173 | rcu_read_unlock(); |
7174 | ||
81151ce4 JB |
7175 | if (req->ap_mld_addr) { |
7176 | for (i = 0; i < IEEE80211_MLD_MAX_NUM_LINKS; i++) { | |
7177 | if (!req->links[i].bss) | |
7178 | continue; | |
7179 | link = sdata_dereference(sdata->link[i], sdata); | |
7180 | if (link) | |
7181 | ether_addr_copy(assoc_data->link[i].addr, | |
7182 | link->conf->addr); | |
7183 | else | |
7184 | eth_random_addr(assoc_data->link[i].addr); | |
7185 | } | |
7186 | } else { | |
7187 | memcpy(assoc_data->link[0].addr, sdata->vif.addr, ETH_ALEN); | |
7188 | } | |
7189 | ||
7190 | assoc_data->s1g = cbss->channel->band == NL80211_BAND_S1GHZ; | |
7191 | ||
7192 | memcpy(assoc_data->ap_addr, | |
7193 | req->ap_mld_addr ?: req->bss->bssid, | |
7194 | ETH_ALEN); | |
7195 | ||
7b119dc0 JB |
7196 | if (ifmgd->associated) { |
7197 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; | |
7198 | ||
89f774e6 JB |
7199 | sdata_info(sdata, |
7200 | "disconnect from AP %pM for new assoc to %pM\n", | |
81151ce4 | 7201 | sdata->vif.cfg.ap_addr, assoc_data->ap_addr); |
7b119dc0 JB |
7202 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
7203 | WLAN_REASON_UNSPECIFIED, | |
7204 | false, frame_buf); | |
7205 | ||
a90faa9d EG |
7206 | ieee80211_report_disconnect(sdata, frame_buf, |
7207 | sizeof(frame_buf), true, | |
3f8a39ff JB |
7208 | WLAN_REASON_UNSPECIFIED, |
7209 | false); | |
7b119dc0 | 7210 | } |
66e67e41 JB |
7211 | |
7212 | if (ifmgd->auth_data && !ifmgd->auth_data->done) { | |
7213 | err = -EBUSY; | |
7214 | goto err_free; | |
af6b6374 | 7215 | } |
77fdaa12 | 7216 | |
66e67e41 JB |
7217 | if (ifmgd->assoc_data) { |
7218 | err = -EBUSY; | |
7219 | goto err_free; | |
7220 | } | |
77fdaa12 | 7221 | |
66e67e41 JB |
7222 | if (ifmgd->auth_data) { |
7223 | bool match; | |
7224 | ||
7225 | /* keep sta info, bssid if matching */ | |
81151ce4 | 7226 | match = ether_addr_equal(ifmgd->auth_data->ap_addr, |
85176a3f JB |
7227 | assoc_data->ap_addr) && |
7228 | ifmgd->auth_data->link_id == req->link_id; | |
66e67e41 | 7229 | ieee80211_destroy_auth_data(sdata, match); |
2a33bee2 GE |
7230 | } |
7231 | ||
66e67e41 | 7232 | /* prepare assoc data */ |
095d81ce | 7233 | |
81151ce4 | 7234 | bss = (void *)cbss->priv; |
095d81ce JB |
7235 | assoc_data->wmm = bss->wmm_used && |
7236 | (local->hw.queues >= IEEE80211_NUM_ACS); | |
095d81ce | 7237 | |
de5036aa JB |
7238 | /* |
7239 | * IEEE802.11n does not allow TKIP/WEP as pairwise ciphers in HT mode. | |
7240 | * We still associate in non-HT mode (11a/b/g) if any one of these | |
7241 | * ciphers is configured as pairwise. | |
7242 | * We can set this to true for non-11n hardware, that'll be checked | |
7243 | * separately along with the peer capabilities. | |
7244 | */ | |
1c4cb928 | 7245 | for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) { |
77fdaa12 JB |
7246 | if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 || |
7247 | req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP || | |
1c4cb928 | 7248 | req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) { |
1845c1d4 JB |
7249 | conn_flags |= IEEE80211_CONN_DISABLE_HT; |
7250 | conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
7251 | conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
7252 | conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
1c4cb928 | 7253 | netdev_info(sdata->dev, |
54626324 | 7254 | "disabling HT/VHT/HE due to WEP/TKIP use\n"); |
1c4cb928 JB |
7255 | } |
7256 | } | |
77fdaa12 | 7257 | |
5dca295d | 7258 | /* also disable HT/VHT/HE/EHT if the AP doesn't use WMM */ |
75e296e9 | 7259 | if (!bss->wmm_used) { |
1845c1d4 JB |
7260 | conn_flags |= IEEE80211_CONN_DISABLE_HT; |
7261 | conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
7262 | conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
7263 | conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
75e296e9 JB |
7264 | netdev_info(sdata->dev, |
7265 | "disabling HT/VHT/HE as WMM/QoS is not supported by the AP\n"); | |
d545daba MP |
7266 | } |
7267 | ||
1845c1d4 JB |
7268 | if (req->flags & ASSOC_REQ_DISABLE_HT) { |
7269 | mlme_dbg(sdata, "HT disabled by flag, disabling HT/VHT/HE\n"); | |
7270 | conn_flags |= IEEE80211_CONN_DISABLE_HT; | |
7271 | conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
7272 | conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
7273 | conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
7274 | } | |
7275 | ||
7276 | if (req->flags & ASSOC_REQ_DISABLE_VHT) { | |
7277 | mlme_dbg(sdata, "VHT disabled by flag, disabling VHT\n"); | |
7278 | conn_flags |= IEEE80211_CONN_DISABLE_VHT; | |
7279 | } | |
7280 | ||
7281 | if (req->flags & ASSOC_REQ_DISABLE_HE) { | |
7282 | mlme_dbg(sdata, "HE disabled by flag, disabling HE/EHT\n"); | |
7283 | conn_flags |= IEEE80211_CONN_DISABLE_HE; | |
7284 | conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
7285 | } | |
7286 | ||
81151ce4 JB |
7287 | if (req->flags & ASSOC_REQ_DISABLE_EHT) |
7288 | conn_flags |= IEEE80211_CONN_DISABLE_EHT; | |
7289 | ||
ef96a842 BG |
7290 | memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa)); |
7291 | memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask, | |
7292 | sizeof(ifmgd->ht_capa_mask)); | |
7293 | ||
dd5ecfea JB |
7294 | memcpy(&ifmgd->vht_capa, &req->vht_capa, sizeof(ifmgd->vht_capa)); |
7295 | memcpy(&ifmgd->vht_capa_mask, &req->vht_capa_mask, | |
7296 | sizeof(ifmgd->vht_capa_mask)); | |
7297 | ||
7957c6c8 TP |
7298 | memcpy(&ifmgd->s1g_capa, &req->s1g_capa, sizeof(ifmgd->s1g_capa)); |
7299 | memcpy(&ifmgd->s1g_capa_mask, &req->s1g_capa_mask, | |
7300 | sizeof(ifmgd->s1g_capa_mask)); | |
7301 | ||
77fdaa12 | 7302 | if (req->ie && req->ie_len) { |
66e67e41 JB |
7303 | memcpy(assoc_data->ie, req->ie, req->ie_len); |
7304 | assoc_data->ie_len = req->ie_len; | |
81151ce4 JB |
7305 | assoc_data->ie_pos = assoc_data->ie + assoc_data->ie_len; |
7306 | } else { | |
7307 | assoc_data->ie_pos = assoc_data->ie; | |
66e67e41 | 7308 | } |
f679f65d | 7309 | |
39404fee JM |
7310 | if (req->fils_kek) { |
7311 | /* should already be checked in cfg80211 - so warn */ | |
7312 | if (WARN_ON(req->fils_kek_len > FILS_MAX_KEK_LEN)) { | |
7313 | err = -EINVAL; | |
7314 | goto err_free; | |
7315 | } | |
7316 | memcpy(assoc_data->fils_kek, req->fils_kek, | |
7317 | req->fils_kek_len); | |
7318 | assoc_data->fils_kek_len = req->fils_kek_len; | |
7319 | } | |
7320 | ||
7321 | if (req->fils_nonces) | |
7322 | memcpy(assoc_data->fils_nonces, req->fils_nonces, | |
7323 | 2 * FILS_NONCE_LEN); | |
7324 | ||
1845c1d4 JB |
7325 | /* default timeout */ |
7326 | assoc_data->timeout = jiffies; | |
7327 | assoc_data->timeout_started = true; | |
7328 | ||
81151ce4 JB |
7329 | assoc_data->assoc_link_id = assoc_link_id; |
7330 | ||
7331 | if (req->ap_mld_addr) { | |
7332 | for (i = 0; i < ARRAY_SIZE(assoc_data->link); i++) { | |
7333 | assoc_data->link[i].conn_flags = conn_flags; | |
7334 | assoc_data->link[i].bss = req->links[i].bss; | |
6d543b34 | 7335 | assoc_data->link[i].disabled = req->links[i].disabled; |
81151ce4 JB |
7336 | } |
7337 | ||
7338 | /* if there was no authentication, set up the link */ | |
6d543b34 | 7339 | err = ieee80211_vif_set_links(sdata, BIT(assoc_link_id), 0); |
81151ce4 JB |
7340 | if (err) |
7341 | goto err_clear; | |
7342 | } else { | |
7343 | assoc_data->link[0].conn_flags = conn_flags; | |
7344 | assoc_data->link[0].bss = cbss; | |
7345 | } | |
7346 | ||
7347 | link = sdata_dereference(sdata->link[assoc_link_id], sdata); | |
7348 | if (WARN_ON(!link)) { | |
7349 | err = -EINVAL; | |
7350 | goto err_clear; | |
7351 | } | |
7352 | ||
553a282c JB |
7353 | /* keep old conn_flags from ieee80211_prep_channel() from auth */ |
7354 | conn_flags |= link->u.mgd.conn_flags; | |
1845c1d4 | 7355 | conn_flags |= ieee80211_setup_assoc_link(sdata, assoc_data, req, |
81151ce4 | 7356 | conn_flags, assoc_link_id); |
1845c1d4 JB |
7357 | override = link->u.mgd.conn_flags != conn_flags; |
7358 | link->u.mgd.conn_flags |= conn_flags; | |
63f170e0 | 7359 | |
848955cc | 7360 | if (WARN((sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_UAPSD) && |
30686bf7 | 7361 | ieee80211_hw_check(&local->hw, PS_NULLFUNC_STACK), |
848955cc JB |
7362 | "U-APSD not supported with HW_PS_NULLFUNC_STACK\n")) |
7363 | sdata->vif.driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD; | |
7364 | ||
ab13315a | 7365 | if (bss->wmm_used && bss->uapsd_supported && |
848955cc | 7366 | (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_UAPSD)) { |
76f0303d | 7367 | assoc_data->uapsd = true; |
ab13315a KV |
7368 | ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED; |
7369 | } else { | |
76f0303d | 7370 | assoc_data->uapsd = false; |
ab13315a KV |
7371 | ifmgd->flags &= ~IEEE80211_STA_UAPSD_ENABLED; |
7372 | } | |
7373 | ||
77fdaa12 | 7374 | if (req->prev_bssid) |
81151ce4 | 7375 | memcpy(assoc_data->prev_ap_addr, req->prev_bssid, ETH_ALEN); |
77fdaa12 JB |
7376 | |
7377 | if (req->use_mfp) { | |
7378 | ifmgd->mfp = IEEE80211_MFP_REQUIRED; | |
7379 | ifmgd->flags |= IEEE80211_STA_MFP_ENABLED; | |
7380 | } else { | |
7381 | ifmgd->mfp = IEEE80211_MFP_DISABLED; | |
7382 | ifmgd->flags &= ~IEEE80211_STA_MFP_ENABLED; | |
7383 | } | |
7384 | ||
cd2f5dd7 AK |
7385 | if (req->flags & ASSOC_REQ_USE_RRM) |
7386 | ifmgd->flags |= IEEE80211_STA_ENABLE_RRM; | |
7387 | else | |
7388 | ifmgd->flags &= ~IEEE80211_STA_ENABLE_RRM; | |
7389 | ||
77fdaa12 JB |
7390 | if (req->crypto.control_port) |
7391 | ifmgd->flags |= IEEE80211_STA_CONTROL_PORT; | |
7392 | else | |
7393 | ifmgd->flags &= ~IEEE80211_STA_CONTROL_PORT; | |
7394 | ||
a621fa4d JB |
7395 | sdata->control_port_protocol = req->crypto.control_port_ethertype; |
7396 | sdata->control_port_no_encrypt = req->crypto.control_port_no_encrypt; | |
018f6fbf DK |
7397 | sdata->control_port_over_nl80211 = |
7398 | req->crypto.control_port_over_nl80211; | |
7f3f96ce | 7399 | sdata->control_port_no_preauth = req->crypto.control_port_no_preauth; |
a621fa4d | 7400 | |
66e67e41 | 7401 | /* kick off associate process */ |
66e67e41 | 7402 | ifmgd->assoc_data = assoc_data; |
b6db0f89 | 7403 | |
81151ce4 JB |
7404 | for (i = 0; i < ARRAY_SIZE(assoc_data->link); i++) { |
7405 | if (!assoc_data->link[i].bss) | |
7406 | continue; | |
7407 | if (i == assoc_data->assoc_link_id) | |
7408 | continue; | |
7409 | /* only calculate the flags, hence link == NULL */ | |
7410 | err = ieee80211_prep_channel(sdata, NULL, assoc_data->link[i].bss, | |
7411 | &assoc_data->link[i].conn_flags); | |
7412 | if (err) | |
7413 | goto err_clear; | |
7414 | } | |
1ca98016 | 7415 | |
4ca04ed3 JB |
7416 | /* needed for transmitting the assoc frames properly */ |
7417 | memcpy(sdata->vif.cfg.ap_addr, assoc_data->ap_addr, ETH_ALEN); | |
7418 | ||
81151ce4 JB |
7419 | err = ieee80211_prep_connection(sdata, cbss, req->link_id, |
7420 | req->ap_mld_addr, true, override); | |
a1cf775d JB |
7421 | if (err) |
7422 | goto err_clear; | |
66e67e41 | 7423 | |
81151ce4 JB |
7424 | assoc_data->link[assoc_data->assoc_link_id].conn_flags = |
7425 | link->u.mgd.conn_flags; | |
79ea0a5f | 7426 | |
74e1309a JB |
7427 | if (ieee80211_hw_check(&sdata->local->hw, NEED_DTIM_BEFORE_ASSOC)) { |
7428 | const struct cfg80211_bss_ies *beacon_ies; | |
826262c3 | 7429 | |
74e1309a JB |
7430 | rcu_read_lock(); |
7431 | beacon_ies = rcu_dereference(req->bss->beacon_ies); | |
7432 | ||
7433 | if (beacon_ies) { | |
7434 | /* | |
7435 | * Wait up to one beacon interval ... | |
7436 | * should this be more if we miss one? | |
7437 | */ | |
7438 | sdata_info(sdata, "waiting for beacon from %pM\n", | |
7439 | link->u.mgd.bssid); | |
7440 | assoc_data->timeout = TU_TO_EXP_TIME(req->bss->beacon_interval); | |
7441 | assoc_data->timeout_started = true; | |
7442 | assoc_data->need_beacon = true; | |
7443 | } | |
7444 | rcu_read_unlock(); | |
66e67e41 | 7445 | } |
c65dd147 | 7446 | |
8d61ffa5 | 7447 | run_again(sdata, assoc_data->timeout); |
66e67e41 | 7448 | |
8d61ffa5 | 7449 | return 0; |
66e67e41 | 7450 | err_clear: |
39d80599 | 7451 | eth_zero_addr(sdata->deflink.u.mgd.bssid); |
d8675a63 JB |
7452 | ieee80211_link_info_change_notify(sdata, &sdata->deflink, |
7453 | BSS_CHANGED_BSSID); | |
66e67e41 JB |
7454 | ifmgd->assoc_data = NULL; |
7455 | err_free: | |
7456 | kfree(assoc_data); | |
66e67e41 | 7457 | return err; |
f0706e82 JB |
7458 | } |
7459 | ||
77fdaa12 | 7460 | int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, |
63c9c5e7 | 7461 | struct cfg80211_deauth_request *req) |
f0706e82 | 7462 | { |
46900298 | 7463 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; |
6ae16775 | 7464 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
6863255b | 7465 | bool tx = !req->local_state_change; |
15fae341 JB |
7466 | struct ieee80211_prep_tx_info info = { |
7467 | .subtype = IEEE80211_STYPE_DEAUTH, | |
7468 | }; | |
f0706e82 | 7469 | |
c9c3a060 | 7470 | if (ifmgd->auth_data && |
81151ce4 | 7471 | ether_addr_equal(ifmgd->auth_data->ap_addr, req->bssid)) { |
c9c3a060 JB |
7472 | sdata_info(sdata, |
7473 | "aborting authentication with %pM by local choice (Reason: %u=%s)\n", | |
7474 | req->bssid, req->reason_code, | |
7475 | ieee80211_get_reason_code_string(req->reason_code)); | |
0ff71613 | 7476 | |
15fae341 | 7477 | drv_mgd_prepare_tx(sdata->local, sdata, &info); |
4b08d1b6 | 7478 | ieee80211_send_deauth_disassoc(sdata, req->bssid, req->bssid, |
37ad3888 | 7479 | IEEE80211_STYPE_DEAUTH, |
6863255b | 7480 | req->reason_code, tx, |
37ad3888 | 7481 | frame_buf); |
86552017 | 7482 | ieee80211_destroy_auth_data(sdata, false); |
a90faa9d EG |
7483 | ieee80211_report_disconnect(sdata, frame_buf, |
7484 | sizeof(frame_buf), true, | |
3f8a39ff | 7485 | req->reason_code, false); |
15fae341 | 7486 | drv_mgd_complete_tx(sdata->local, sdata, &info); |
c9c3a060 | 7487 | return 0; |
8c7d857c EG |
7488 | } |
7489 | ||
a64cba3c | 7490 | if (ifmgd->assoc_data && |
81151ce4 | 7491 | ether_addr_equal(ifmgd->assoc_data->ap_addr, req->bssid)) { |
a64cba3c AO |
7492 | sdata_info(sdata, |
7493 | "aborting association with %pM by local choice (Reason: %u=%s)\n", | |
7494 | req->bssid, req->reason_code, | |
7495 | ieee80211_get_reason_code_string(req->reason_code)); | |
7496 | ||
15fae341 | 7497 | drv_mgd_prepare_tx(sdata->local, sdata, &info); |
4b08d1b6 | 7498 | ieee80211_send_deauth_disassoc(sdata, req->bssid, req->bssid, |
a64cba3c AO |
7499 | IEEE80211_STYPE_DEAUTH, |
7500 | req->reason_code, tx, | |
7501 | frame_buf); | |
afa2d659 | 7502 | ieee80211_destroy_assoc_data(sdata, ASSOC_ABANDON); |
a64cba3c AO |
7503 | ieee80211_report_disconnect(sdata, frame_buf, |
7504 | sizeof(frame_buf), true, | |
3f8a39ff | 7505 | req->reason_code, false); |
a64cba3c AO |
7506 | return 0; |
7507 | } | |
7508 | ||
86552017 | 7509 | if (ifmgd->associated && |
b65567b0 | 7510 | ether_addr_equal(sdata->vif.cfg.ap_addr, req->bssid)) { |
c9c3a060 JB |
7511 | sdata_info(sdata, |
7512 | "deauthenticating from %pM by local choice (Reason: %u=%s)\n", | |
7513 | req->bssid, req->reason_code, | |
7514 | ieee80211_get_reason_code_string(req->reason_code)); | |
7515 | ||
86552017 JB |
7516 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, |
7517 | req->reason_code, tx, frame_buf); | |
a90faa9d EG |
7518 | ieee80211_report_disconnect(sdata, frame_buf, |
7519 | sizeof(frame_buf), true, | |
3f8a39ff | 7520 | req->reason_code, false); |
15fae341 | 7521 | drv_mgd_complete_tx(sdata->local, sdata, &info); |
c9c3a060 JB |
7522 | return 0; |
7523 | } | |
86552017 | 7524 | |
c9c3a060 | 7525 | return -ENOTCONN; |
f0706e82 | 7526 | } |
84363e6e | 7527 | |
77fdaa12 | 7528 | int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, |
63c9c5e7 | 7529 | struct cfg80211_disassoc_request *req) |
9c6bd790 | 7530 | { |
6ae16775 | 7531 | u8 frame_buf[IEEE80211_DEAUTH_FRAME_LEN]; |
9c6bd790 | 7532 | |
8f6e0dfc JB |
7533 | if (!sdata->u.mgd.associated || |
7534 | memcmp(sdata->vif.cfg.ap_addr, req->ap_addr, ETH_ALEN)) | |
7535 | return -ENOTCONN; | |
77fdaa12 | 7536 | |
bdcbd8e0 | 7537 | sdata_info(sdata, |
dfa1ad29 | 7538 | "disassociating from %pM by local choice (Reason: %u=%s)\n", |
8f6e0dfc JB |
7539 | req->ap_addr, req->reason_code, |
7540 | ieee80211_get_reason_code_string(req->reason_code)); | |
0ff71613 | 7541 | |
37ad3888 JB |
7542 | ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DISASSOC, |
7543 | req->reason_code, !req->local_state_change, | |
7544 | frame_buf); | |
10f644a4 | 7545 | |
a90faa9d | 7546 | ieee80211_report_disconnect(sdata, frame_buf, sizeof(frame_buf), true, |
3f8a39ff | 7547 | req->reason_code, false); |
bc83b681 | 7548 | |
10f644a4 JB |
7549 | return 0; |
7550 | } | |
026331c4 | 7551 | |
b2e8434f JB |
7552 | void ieee80211_mgd_stop_link(struct ieee80211_link_data *link) |
7553 | { | |
1444f589 JB |
7554 | wiphy_work_cancel(link->sdata->local->hw.wiphy, |
7555 | &link->u.mgd.request_smps_work); | |
ec3252bf JB |
7556 | wiphy_delayed_work_cancel(link->sdata->local->hw.wiphy, |
7557 | &link->u.mgd.chswitch_work); | |
b2e8434f JB |
7558 | } |
7559 | ||
afa762f6 | 7560 | void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata) |
54e4ffb2 JB |
7561 | { |
7562 | struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; | |
7563 | ||
49921859 BG |
7564 | /* |
7565 | * Make sure some work items will not run after this, | |
7566 | * they will not do anything but might not have been | |
7567 | * cancelled when disconnecting. | |
7568 | */ | |
7569 | cancel_work_sync(&ifmgd->monitor_work); | |
4b8d43f1 JB |
7570 | wiphy_work_cancel(sdata->local->hw.wiphy, |
7571 | &ifmgd->beacon_connection_loss_work); | |
7572 | wiphy_work_cancel(sdata->local->hw.wiphy, | |
7573 | &ifmgd->csa_connection_drop_work); | |
81dd2b88 | 7574 | cancel_delayed_work_sync(&ifmgd->tdls_peer_del_work); |
49921859 | 7575 | |
8d61ffa5 | 7576 | sdata_lock(sdata); |
afa2d659 JB |
7577 | if (ifmgd->assoc_data) |
7578 | ieee80211_destroy_assoc_data(sdata, ASSOC_TIMEOUT); | |
54e4ffb2 JB |
7579 | if (ifmgd->auth_data) |
7580 | ieee80211_destroy_auth_data(sdata, false); | |
1277b4a9 LK |
7581 | spin_lock_bh(&ifmgd->teardown_lock); |
7582 | if (ifmgd->teardown_skb) { | |
7583 | kfree_skb(ifmgd->teardown_skb); | |
7584 | ifmgd->teardown_skb = NULL; | |
7585 | ifmgd->orig_teardown_skb = NULL; | |
7586 | } | |
4d9ec73d JM |
7587 | kfree(ifmgd->assoc_req_ies); |
7588 | ifmgd->assoc_req_ies = NULL; | |
7589 | ifmgd->assoc_req_ies_len = 0; | |
1277b4a9 | 7590 | spin_unlock_bh(&ifmgd->teardown_lock); |
54e4ffb2 | 7591 | del_timer_sync(&ifmgd->timer); |
8d61ffa5 | 7592 | sdata_unlock(sdata); |
54e4ffb2 JB |
7593 | } |
7594 | ||
a97c13c3 JO |
7595 | void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif, |
7596 | enum nl80211_cqm_rssi_threshold_event rssi_event, | |
769f07d8 | 7597 | s32 rssi_level, |
a97c13c3 JO |
7598 | gfp_t gfp) |
7599 | { | |
7600 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
7601 | ||
769f07d8 | 7602 | trace_api_cqm_rssi_notify(sdata, rssi_event, rssi_level); |
b5878a2d | 7603 | |
bee427b8 | 7604 | cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, rssi_level, gfp); |
a97c13c3 JO |
7605 | } |
7606 | EXPORT_SYMBOL(ieee80211_cqm_rssi_notify); | |
98f03342 JB |
7607 | |
7608 | void ieee80211_cqm_beacon_loss_notify(struct ieee80211_vif *vif, gfp_t gfp) | |
7609 | { | |
7610 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
7611 | ||
7612 | trace_api_cqm_beacon_loss_notify(sdata->local, sdata); | |
7613 | ||
7614 | cfg80211_cqm_beacon_loss_notify(sdata->dev, gfp); | |
7615 | } | |
7616 | EXPORT_SYMBOL(ieee80211_cqm_beacon_loss_notify); | |
f344c58c JB |
7617 | |
7618 | static void _ieee80211_enable_rssi_reports(struct ieee80211_sub_if_data *sdata, | |
7619 | int rssi_min_thold, | |
7620 | int rssi_max_thold) | |
7621 | { | |
7622 | trace_api_enable_rssi_reports(sdata, rssi_min_thold, rssi_max_thold); | |
7623 | ||
7624 | if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION)) | |
7625 | return; | |
7626 | ||
7627 | /* | |
7628 | * Scale up threshold values before storing it, as the RSSI averaging | |
7629 | * algorithm uses a scaled up value as well. Change this scaling | |
7630 | * factor if the RSSI averaging algorithm changes. | |
7631 | */ | |
7632 | sdata->u.mgd.rssi_min_thold = rssi_min_thold*16; | |
7633 | sdata->u.mgd.rssi_max_thold = rssi_max_thold*16; | |
7634 | } | |
7635 | ||
7636 | void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, | |
7637 | int rssi_min_thold, | |
7638 | int rssi_max_thold) | |
7639 | { | |
7640 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
7641 | ||
7642 | WARN_ON(rssi_min_thold == rssi_max_thold || | |
7643 | rssi_min_thold > rssi_max_thold); | |
7644 | ||
7645 | _ieee80211_enable_rssi_reports(sdata, rssi_min_thold, | |
7646 | rssi_max_thold); | |
7647 | } | |
7648 | EXPORT_SYMBOL(ieee80211_enable_rssi_reports); | |
7649 | ||
7650 | void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif) | |
7651 | { | |
7652 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); | |
7653 | ||
7654 | _ieee80211_enable_rssi_reports(sdata, 0, 0); | |
7655 | } | |
7656 | EXPORT_SYMBOL(ieee80211_disable_rssi_reports); |