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serial: sh-sci: Neaten dev_<level> uses
[linux/fpc-iii.git] / net / mac80211 / cfg.c
blob453e974287d19b52971116bca5e0e401746f3ffb
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
9 #include <linux/ieee80211.h>
10 #include <linux/nl80211.h>
11 #include <linux/rtnetlink.h>
12 #include <linux/slab.h>
13 #include <net/net_namespace.h>
14 #include <linux/rcupdate.h>
15 #include <linux/if_ether.h>
16 #include <net/cfg80211.h>
17 #include "ieee80211_i.h"
18 #include "driver-ops.h"
19 #include "cfg.h"
20 #include "rate.h"
21 #include "mesh.h"
22
23 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
28 {
29 struct ieee80211_local *local = wiphy_priv(wiphy);
30 struct wireless_dev *wdev;
31 struct ieee80211_sub_if_data *sdata;
32 int err;
33
34 err = ieee80211_if_add(local, name, &wdev, type, params);
35 if (err)
36 return ERR_PTR(err);
37
38 if (type == NL80211_IFTYPE_MONITOR && flags) {
39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
40 sdata->u.mntr_flags = *flags;
41 }
42
43 return wdev;
44 }
45
46 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
47 {
48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
49
50 return 0;
51 }
52
53 static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
57 {
58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
59 int ret;
60
61 ret = ieee80211_if_change_type(sdata, type);
62 if (ret)
63 return ret;
64
65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
74
75 if (ieee80211_sdata_running(sdata)) {
76 u32 mask = MONITOR_FLAG_COOK_FRAMES |
77 MONITOR_FLAG_ACTIVE;
78
79 /*
80 * Prohibit MONITOR_FLAG_COOK_FRAMES and
81 * MONITOR_FLAG_ACTIVE to be changed while the
82 * interface is up.
83 * Else we would need to add a lot of cruft
84 * to update everything:
85 * cooked_mntrs, monitor and all fif_* counters
86 * reconfigure hardware
87 */
88 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
89 return -EBUSY;
90
91 ieee80211_adjust_monitor_flags(sdata, -1);
92 sdata->u.mntr_flags = *flags;
93 ieee80211_adjust_monitor_flags(sdata, 1);
94
95 ieee80211_configure_filter(local);
96 } else {
97 /*
98 * Because the interface is down, ieee80211_do_stop
99 * and ieee80211_do_open take care of "everything"
100 * mentioned in the comment above.
101 */
102 sdata->u.mntr_flags = *flags;
103 }
104 }
105
106 return 0;
107 }
108
109 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
110 struct wireless_dev *wdev)
111 {
112 return ieee80211_do_open(wdev, true);
113 }
114
115 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
116 struct wireless_dev *wdev)
117 {
118 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
119 }
120
121 static int ieee80211_set_noack_map(struct wiphy *wiphy,
122 struct net_device *dev,
123 u16 noack_map)
124 {
125 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
126
127 sdata->noack_map = noack_map;
128 return 0;
129 }
130
131 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
132 u8 key_idx, bool pairwise, const u8 *mac_addr,
133 struct key_params *params)
134 {
135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
136 struct ieee80211_local *local = sdata->local;
137 struct sta_info *sta = NULL;
138 const struct ieee80211_cipher_scheme *cs = NULL;
139 struct ieee80211_key *key;
140 int err;
141
142 if (!ieee80211_sdata_running(sdata))
143 return -ENETDOWN;
144
145 /* reject WEP and TKIP keys if WEP failed to initialize */
146 switch (params->cipher) {
147 case WLAN_CIPHER_SUITE_WEP40:
148 case WLAN_CIPHER_SUITE_TKIP:
149 case WLAN_CIPHER_SUITE_WEP104:
150 if (IS_ERR(local->wep_tx_tfm))
151 return -EINVAL;
152 break;
153 case WLAN_CIPHER_SUITE_CCMP:
154 case WLAN_CIPHER_SUITE_AES_CMAC:
155 case WLAN_CIPHER_SUITE_GCMP:
156 break;
157 default:
158 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
159 break;
160 }
161
162 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
163 params->key, params->seq_len, params->seq,
164 cs);
165 if (IS_ERR(key))
166 return PTR_ERR(key);
167
168 if (pairwise)
169 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
170
171 mutex_lock(&local->sta_mtx);
172
173 if (mac_addr) {
174 if (ieee80211_vif_is_mesh(&sdata->vif))
175 sta = sta_info_get(sdata, mac_addr);
176 else
177 sta = sta_info_get_bss(sdata, mac_addr);
178 /*
179 * The ASSOC test makes sure the driver is ready to
180 * receive the key. When wpa_supplicant has roamed
181 * using FT, it attempts to set the key before
182 * association has completed, this rejects that attempt
183 * so it will set the key again after assocation.
184 *
185 * TODO: accept the key if we have a station entry and
186 * add it to the device after the station.
187 */
188 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
189 ieee80211_key_free_unused(key);
190 err = -ENOENT;
191 goto out_unlock;
192 }
193 }
194
195 switch (sdata->vif.type) {
196 case NL80211_IFTYPE_STATION:
197 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
198 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
199 break;
200 case NL80211_IFTYPE_AP:
201 case NL80211_IFTYPE_AP_VLAN:
202 /* Keys without a station are used for TX only */
203 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
204 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
205 break;
206 case NL80211_IFTYPE_ADHOC:
207 /* no MFP (yet) */
208 break;
209 case NL80211_IFTYPE_MESH_POINT:
210 #ifdef CONFIG_MAC80211_MESH
211 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
212 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
213 break;
214 #endif
215 case NL80211_IFTYPE_WDS:
216 case NL80211_IFTYPE_MONITOR:
217 case NL80211_IFTYPE_P2P_DEVICE:
218 case NL80211_IFTYPE_UNSPECIFIED:
219 case NUM_NL80211_IFTYPES:
220 case NL80211_IFTYPE_P2P_CLIENT:
221 case NL80211_IFTYPE_P2P_GO:
222 /* shouldn't happen */
223 WARN_ON_ONCE(1);
224 break;
225 }
226
227 if (sta)
228 sta->cipher_scheme = cs;
229
230 err = ieee80211_key_link(key, sdata, sta);
231
232 out_unlock:
233 mutex_unlock(&local->sta_mtx);
234
235 return err;
236 }
237
238 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
239 u8 key_idx, bool pairwise, const u8 *mac_addr)
240 {
241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
242 struct ieee80211_local *local = sdata->local;
243 struct sta_info *sta;
244 struct ieee80211_key *key = NULL;
245 int ret;
246
247 mutex_lock(&local->sta_mtx);
248 mutex_lock(&local->key_mtx);
249
250 if (mac_addr) {
251 ret = -ENOENT;
252
253 sta = sta_info_get_bss(sdata, mac_addr);
254 if (!sta)
255 goto out_unlock;
256
257 if (pairwise)
258 key = key_mtx_dereference(local, sta->ptk[key_idx]);
259 else
260 key = key_mtx_dereference(local, sta->gtk[key_idx]);
261 } else
262 key = key_mtx_dereference(local, sdata->keys[key_idx]);
263
264 if (!key) {
265 ret = -ENOENT;
266 goto out_unlock;
267 }
268
269 ieee80211_key_free(key, true);
270
271 ret = 0;
272 out_unlock:
273 mutex_unlock(&local->key_mtx);
274 mutex_unlock(&local->sta_mtx);
275
276 return ret;
277 }
278
279 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
280 u8 key_idx, bool pairwise, const u8 *mac_addr,
281 void *cookie,
282 void (*callback)(void *cookie,
283 struct key_params *params))
284 {
285 struct ieee80211_sub_if_data *sdata;
286 struct sta_info *sta = NULL;
287 u8 seq[6] = {0};
288 struct key_params params;
289 struct ieee80211_key *key = NULL;
290 u64 pn64;
291 u32 iv32;
292 u16 iv16;
293 int err = -ENOENT;
294
295 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
296
297 rcu_read_lock();
298
299 if (mac_addr) {
300 sta = sta_info_get_bss(sdata, mac_addr);
301 if (!sta)
302 goto out;
303
304 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
305 key = rcu_dereference(sta->ptk[key_idx]);
306 else if (!pairwise &&
307 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
308 key = rcu_dereference(sta->gtk[key_idx]);
309 } else
310 key = rcu_dereference(sdata->keys[key_idx]);
311
312 if (!key)
313 goto out;
314
315 memset(&params, 0, sizeof(params));
316
317 params.cipher = key->conf.cipher;
318
319 switch (key->conf.cipher) {
320 case WLAN_CIPHER_SUITE_TKIP:
321 iv32 = key->u.tkip.tx.iv32;
322 iv16 = key->u.tkip.tx.iv16;
323
324 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
325 drv_get_tkip_seq(sdata->local,
326 key->conf.hw_key_idx,
327 &iv32, &iv16);
328
329 seq[0] = iv16 & 0xff;
330 seq[1] = (iv16 >> 8) & 0xff;
331 seq[2] = iv32 & 0xff;
332 seq[3] = (iv32 >> 8) & 0xff;
333 seq[4] = (iv32 >> 16) & 0xff;
334 seq[5] = (iv32 >> 24) & 0xff;
335 params.seq = seq;
336 params.seq_len = 6;
337 break;
338 case WLAN_CIPHER_SUITE_CCMP:
339 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
340 seq[0] = pn64;
341 seq[1] = pn64 >> 8;
342 seq[2] = pn64 >> 16;
343 seq[3] = pn64 >> 24;
344 seq[4] = pn64 >> 32;
345 seq[5] = pn64 >> 40;
346 params.seq = seq;
347 params.seq_len = 6;
348 break;
349 case WLAN_CIPHER_SUITE_AES_CMAC:
350 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
351 seq[0] = pn64;
352 seq[1] = pn64 >> 8;
353 seq[2] = pn64 >> 16;
354 seq[3] = pn64 >> 24;
355 seq[4] = pn64 >> 32;
356 seq[5] = pn64 >> 40;
357 params.seq = seq;
358 params.seq_len = 6;
359 break;
360 }
361
362 params.key = key->conf.key;
363 params.key_len = key->conf.keylen;
364
365 callback(cookie, &params);
366 err = 0;
367
368 out:
369 rcu_read_unlock();
370 return err;
371 }
372
373 static int ieee80211_config_default_key(struct wiphy *wiphy,
374 struct net_device *dev,
375 u8 key_idx, bool uni,
376 bool multi)
377 {
378 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
379
380 ieee80211_set_default_key(sdata, key_idx, uni, multi);
381
382 return 0;
383 }
384
385 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
386 struct net_device *dev,
387 u8 key_idx)
388 {
389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
390
391 ieee80211_set_default_mgmt_key(sdata, key_idx);
392
393 return 0;
394 }
395
396 void sta_set_rate_info_tx(struct sta_info *sta,
397 const struct ieee80211_tx_rate *rate,
398 struct rate_info *rinfo)
399 {
400 rinfo->flags = 0;
401 if (rate->flags & IEEE80211_TX_RC_MCS) {
402 rinfo->flags |= RATE_INFO_FLAGS_MCS;
403 rinfo->mcs = rate->idx;
404 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
405 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
406 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
407 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
408 } else {
409 struct ieee80211_supported_band *sband;
410 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
411 u16 brate;
412
413 sband = sta->local->hw.wiphy->bands[
414 ieee80211_get_sdata_band(sta->sdata)];
415 brate = sband->bitrates[rate->idx].bitrate;
416 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
417 }
418 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
419 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
420 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
421 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
422 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
423 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
424 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
425 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
426 }
427
428 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
429 {
430 rinfo->flags = 0;
431
432 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
433 rinfo->flags |= RATE_INFO_FLAGS_MCS;
434 rinfo->mcs = sta->last_rx_rate_idx;
435 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
436 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
437 rinfo->nss = sta->last_rx_rate_vht_nss;
438 rinfo->mcs = sta->last_rx_rate_idx;
439 } else {
440 struct ieee80211_supported_band *sband;
441 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
442 u16 brate;
443
444 sband = sta->local->hw.wiphy->bands[
445 ieee80211_get_sdata_band(sta->sdata)];
446 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
447 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
448 }
449
450 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
451 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
452 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
453 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
454 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
455 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
456 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
457 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
458 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
459 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
460 }
461
462 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
463 {
464 struct ieee80211_sub_if_data *sdata = sta->sdata;
465 struct ieee80211_local *local = sdata->local;
466 struct timespec uptime;
467 u64 packets = 0;
468 int i, ac;
469
470 sinfo->generation = sdata->local->sta_generation;
471
472 sinfo->filled = STATION_INFO_INACTIVE_TIME |
473 STATION_INFO_RX_BYTES64 |
474 STATION_INFO_TX_BYTES64 |
475 STATION_INFO_RX_PACKETS |
476 STATION_INFO_TX_PACKETS |
477 STATION_INFO_TX_RETRIES |
478 STATION_INFO_TX_FAILED |
479 STATION_INFO_TX_BITRATE |
480 STATION_INFO_RX_BITRATE |
481 STATION_INFO_RX_DROP_MISC |
482 STATION_INFO_BSS_PARAM |
483 STATION_INFO_CONNECTED_TIME |
484 STATION_INFO_STA_FLAGS |
485 STATION_INFO_BEACON_LOSS_COUNT;
486
487 do_posix_clock_monotonic_gettime(&uptime);
488 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
489
490 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
491 sinfo->tx_bytes = 0;
492 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
493 sinfo->tx_bytes += sta->tx_bytes[ac];
494 packets += sta->tx_packets[ac];
495 }
496 sinfo->tx_packets = packets;
497 sinfo->rx_bytes = sta->rx_bytes;
498 sinfo->rx_packets = sta->rx_packets;
499 sinfo->tx_retries = sta->tx_retry_count;
500 sinfo->tx_failed = sta->tx_retry_failed;
501 sinfo->rx_dropped_misc = sta->rx_dropped;
502 sinfo->beacon_loss_count = sta->beacon_loss_count;
503
504 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
505 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
506 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
507 if (!local->ops->get_rssi ||
508 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
509 sinfo->signal = (s8)sta->last_signal;
510 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
511 }
512 if (sta->chains) {
513 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
514 STATION_INFO_CHAIN_SIGNAL_AVG;
515
516 sinfo->chains = sta->chains;
517 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
518 sinfo->chain_signal[i] = sta->chain_signal_last[i];
519 sinfo->chain_signal_avg[i] =
520 (s8) -ewma_read(&sta->chain_signal_avg[i]);
521 }
522 }
523
524 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
525 sta_set_rate_info_rx(sta, &sinfo->rxrate);
526
527 if (ieee80211_vif_is_mesh(&sdata->vif)) {
528 #ifdef CONFIG_MAC80211_MESH
529 sinfo->filled |= STATION_INFO_LLID |
530 STATION_INFO_PLID |
531 STATION_INFO_PLINK_STATE |
532 STATION_INFO_LOCAL_PM |
533 STATION_INFO_PEER_PM |
534 STATION_INFO_NONPEER_PM;
535
536 sinfo->llid = sta->llid;
537 sinfo->plid = sta->plid;
538 sinfo->plink_state = sta->plink_state;
539 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
540 sinfo->filled |= STATION_INFO_T_OFFSET;
541 sinfo->t_offset = sta->t_offset;
542 }
543 sinfo->local_pm = sta->local_pm;
544 sinfo->peer_pm = sta->peer_pm;
545 sinfo->nonpeer_pm = sta->nonpeer_pm;
546 #endif
547 }
548
549 sinfo->bss_param.flags = 0;
550 if (sdata->vif.bss_conf.use_cts_prot)
551 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
552 if (sdata->vif.bss_conf.use_short_preamble)
553 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
554 if (sdata->vif.bss_conf.use_short_slot)
555 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
556 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
557 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
558
559 sinfo->sta_flags.set = 0;
560 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
561 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
562 BIT(NL80211_STA_FLAG_WME) |
563 BIT(NL80211_STA_FLAG_MFP) |
564 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
565 BIT(NL80211_STA_FLAG_ASSOCIATED) |
566 BIT(NL80211_STA_FLAG_TDLS_PEER);
567 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
568 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
569 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
570 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
571 if (test_sta_flag(sta, WLAN_STA_WME))
572 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
573 if (test_sta_flag(sta, WLAN_STA_MFP))
574 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
575 if (test_sta_flag(sta, WLAN_STA_AUTH))
576 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
577 if (test_sta_flag(sta, WLAN_STA_ASSOC))
578 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
579 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
580 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
581 }
582
583 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
584 "rx_packets", "rx_bytes", "wep_weak_iv_count",
585 "rx_duplicates", "rx_fragments", "rx_dropped",
586 "tx_packets", "tx_bytes", "tx_fragments",
587 "tx_filtered", "tx_retry_failed", "tx_retries",
588 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
589 "channel", "noise", "ch_time", "ch_time_busy",
590 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
591 };
592 #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
593
594 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
595 struct net_device *dev,
596 int sset)
597 {
598 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
599 int rv = 0;
600
601 if (sset == ETH_SS_STATS)
602 rv += STA_STATS_LEN;
603
604 rv += drv_get_et_sset_count(sdata, sset);
605
606 if (rv == 0)
607 return -EOPNOTSUPP;
608 return rv;
609 }
610
611 static void ieee80211_get_et_stats(struct wiphy *wiphy,
612 struct net_device *dev,
613 struct ethtool_stats *stats,
614 u64 *data)
615 {
616 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
617 struct ieee80211_chanctx_conf *chanctx_conf;
618 struct ieee80211_channel *channel;
619 struct sta_info *sta;
620 struct ieee80211_local *local = sdata->local;
621 struct station_info sinfo;
622 struct survey_info survey;
623 int i, q;
624 #define STA_STATS_SURVEY_LEN 7
625
626 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
627
628 #define ADD_STA_STATS(sta) \
629 do { \
630 data[i++] += sta->rx_packets; \
631 data[i++] += sta->rx_bytes; \
632 data[i++] += sta->wep_weak_iv_count; \
633 data[i++] += sta->num_duplicates; \
634 data[i++] += sta->rx_fragments; \
635 data[i++] += sta->rx_dropped; \
636 \
637 data[i++] += sinfo.tx_packets; \
638 data[i++] += sinfo.tx_bytes; \
639 data[i++] += sta->tx_fragments; \
640 data[i++] += sta->tx_filtered_count; \
641 data[i++] += sta->tx_retry_failed; \
642 data[i++] += sta->tx_retry_count; \
643 data[i++] += sta->beacon_loss_count; \
644 } while (0)
645
646 /* For Managed stations, find the single station based on BSSID
647 * and use that. For interface types, iterate through all available
648 * stations and add stats for any station that is assigned to this
649 * network device.
650 */
651
652 mutex_lock(&local->sta_mtx);
653
654 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
655 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
656
657 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
658 goto do_survey;
659
660 sinfo.filled = 0;
661 sta_set_sinfo(sta, &sinfo);
662
663 i = 0;
664 ADD_STA_STATS(sta);
665
666 data[i++] = sta->sta_state;
667
668
669 if (sinfo.filled & STATION_INFO_TX_BITRATE)
670 data[i] = 100000 *
671 cfg80211_calculate_bitrate(&sinfo.txrate);
672 i++;
673 if (sinfo.filled & STATION_INFO_RX_BITRATE)
674 data[i] = 100000 *
675 cfg80211_calculate_bitrate(&sinfo.rxrate);
676 i++;
677
678 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
679 data[i] = (u8)sinfo.signal_avg;
680 i++;
681 } else {
682 list_for_each_entry(sta, &local->sta_list, list) {
683 /* Make sure this station belongs to the proper dev */
684 if (sta->sdata->dev != dev)
685 continue;
686
687 sinfo.filled = 0;
688 sta_set_sinfo(sta, &sinfo);
689 i = 0;
690 ADD_STA_STATS(sta);
691 }
692 }
693
694 do_survey:
695 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
696 /* Get survey stats for current channel */
697 survey.filled = 0;
698
699 rcu_read_lock();
700 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
701 if (chanctx_conf)
702 channel = chanctx_conf->def.chan;
703 else
704 channel = NULL;
705 rcu_read_unlock();
706
707 if (channel) {
708 q = 0;
709 do {
710 survey.filled = 0;
711 if (drv_get_survey(local, q, &survey) != 0) {
712 survey.filled = 0;
713 break;
714 }
715 q++;
716 } while (channel != survey.channel);
717 }
718
719 if (survey.filled)
720 data[i++] = survey.channel->center_freq;
721 else
722 data[i++] = 0;
723 if (survey.filled & SURVEY_INFO_NOISE_DBM)
724 data[i++] = (u8)survey.noise;
725 else
726 data[i++] = -1LL;
727 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
728 data[i++] = survey.channel_time;
729 else
730 data[i++] = -1LL;
731 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
732 data[i++] = survey.channel_time_busy;
733 else
734 data[i++] = -1LL;
735 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
736 data[i++] = survey.channel_time_ext_busy;
737 else
738 data[i++] = -1LL;
739 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
740 data[i++] = survey.channel_time_rx;
741 else
742 data[i++] = -1LL;
743 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
744 data[i++] = survey.channel_time_tx;
745 else
746 data[i++] = -1LL;
747
748 mutex_unlock(&local->sta_mtx);
749
750 if (WARN_ON(i != STA_STATS_LEN))
751 return;
752
753 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
754 }
755
756 static void ieee80211_get_et_strings(struct wiphy *wiphy,
757 struct net_device *dev,
758 u32 sset, u8 *data)
759 {
760 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
761 int sz_sta_stats = 0;
762
763 if (sset == ETH_SS_STATS) {
764 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
765 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
766 }
767 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
768 }
769
770 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
771 int idx, u8 *mac, struct station_info *sinfo)
772 {
773 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
774 struct ieee80211_local *local = sdata->local;
775 struct sta_info *sta;
776 int ret = -ENOENT;
777
778 mutex_lock(&local->sta_mtx);
779
780 sta = sta_info_get_by_idx(sdata, idx);
781 if (sta) {
782 ret = 0;
783 memcpy(mac, sta->sta.addr, ETH_ALEN);
784 sta_set_sinfo(sta, sinfo);
785 }
786
787 mutex_unlock(&local->sta_mtx);
788
789 return ret;
790 }
791
792 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
793 int idx, struct survey_info *survey)
794 {
795 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
796
797 return drv_get_survey(local, idx, survey);
798 }
799
800 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
801 u8 *mac, struct station_info *sinfo)
802 {
803 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
804 struct ieee80211_local *local = sdata->local;
805 struct sta_info *sta;
806 int ret = -ENOENT;
807
808 mutex_lock(&local->sta_mtx);
809
810 sta = sta_info_get_bss(sdata, mac);
811 if (sta) {
812 ret = 0;
813 sta_set_sinfo(sta, sinfo);
814 }
815
816 mutex_unlock(&local->sta_mtx);
817
818 return ret;
819 }
820
821 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
822 struct cfg80211_chan_def *chandef)
823 {
824 struct ieee80211_local *local = wiphy_priv(wiphy);
825 struct ieee80211_sub_if_data *sdata;
826 int ret = 0;
827
828 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
829 return 0;
830
831 mutex_lock(&local->mtx);
832 mutex_lock(&local->iflist_mtx);
833 if (local->use_chanctx) {
834 sdata = rcu_dereference_protected(
835 local->monitor_sdata,
836 lockdep_is_held(&local->iflist_mtx));
837 if (sdata) {
838 ieee80211_vif_release_channel(sdata);
839 ret = ieee80211_vif_use_channel(sdata, chandef,
840 IEEE80211_CHANCTX_EXCLUSIVE);
841 }
842 } else if (local->open_count == local->monitors) {
843 local->_oper_chandef = *chandef;
844 ieee80211_hw_config(local, 0);
845 }
846
847 if (ret == 0)
848 local->monitor_chandef = *chandef;
849 mutex_unlock(&local->iflist_mtx);
850 mutex_unlock(&local->mtx);
851
852 return ret;
853 }
854
855 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
856 const u8 *resp, size_t resp_len)
857 {
858 struct probe_resp *new, *old;
859
860 if (!resp || !resp_len)
861 return 1;
862
863 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
864
865 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
866 if (!new)
867 return -ENOMEM;
868
869 new->len = resp_len;
870 memcpy(new->data, resp, resp_len);
871
872 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
873 if (old)
874 kfree_rcu(old, rcu_head);
875
876 return 0;
877 }
878
879 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
880 struct cfg80211_beacon_data *params)
881 {
882 struct beacon_data *new, *old;
883 int new_head_len, new_tail_len;
884 int size, err;
885 u32 changed = BSS_CHANGED_BEACON;
886
887 old = sdata_dereference(sdata->u.ap.beacon, sdata);
888
889
890 /* Need to have a beacon head if we don't have one yet */
891 if (!params->head && !old)
892 return -EINVAL;
893
894 /* new or old head? */
895 if (params->head)
896 new_head_len = params->head_len;
897 else
898 new_head_len = old->head_len;
899
900 /* new or old tail? */
901 if (params->tail || !old)
902 /* params->tail_len will be zero for !params->tail */
903 new_tail_len = params->tail_len;
904 else
905 new_tail_len = old->tail_len;
906
907 size = sizeof(*new) + new_head_len + new_tail_len;
908
909 new = kzalloc(size, GFP_KERNEL);
910 if (!new)
911 return -ENOMEM;
912
913 /* start filling the new info now */
914
915 /*
916 * pointers go into the block we allocated,
917 * memory is | beacon_data | head | tail |
918 */
919 new->head = ((u8 *) new) + sizeof(*new);
920 new->tail = new->head + new_head_len;
921 new->head_len = new_head_len;
922 new->tail_len = new_tail_len;
923
924 /* copy in head */
925 if (params->head)
926 memcpy(new->head, params->head, new_head_len);
927 else
928 memcpy(new->head, old->head, new_head_len);
929
930 /* copy in optional tail */
931 if (params->tail)
932 memcpy(new->tail, params->tail, new_tail_len);
933 else
934 if (old)
935 memcpy(new->tail, old->tail, new_tail_len);
936
937 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
938 params->probe_resp_len);
939 if (err < 0)
940 return err;
941 if (err == 0)
942 changed |= BSS_CHANGED_AP_PROBE_RESP;
943
944 rcu_assign_pointer(sdata->u.ap.beacon, new);
945
946 if (old)
947 kfree_rcu(old, rcu_head);
948
949 return changed;
950 }
951
952 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
953 struct cfg80211_ap_settings *params)
954 {
955 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
956 struct ieee80211_local *local = sdata->local;
957 struct beacon_data *old;
958 struct ieee80211_sub_if_data *vlan;
959 u32 changed = BSS_CHANGED_BEACON_INT |
960 BSS_CHANGED_BEACON_ENABLED |
961 BSS_CHANGED_BEACON |
962 BSS_CHANGED_SSID |
963 BSS_CHANGED_P2P_PS;
964 int err;
965
966 old = sdata_dereference(sdata->u.ap.beacon, sdata);
967 if (old)
968 return -EALREADY;
969
970 /* TODO: make hostapd tell us what it wants */
971 sdata->smps_mode = IEEE80211_SMPS_OFF;
972 sdata->needed_rx_chains = sdata->local->rx_chains;
973 sdata->radar_required = params->radar_required;
974
975 mutex_lock(&local->mtx);
976 err = ieee80211_vif_use_channel(sdata, &params->chandef,
977 IEEE80211_CHANCTX_SHARED);
978 mutex_unlock(&local->mtx);
979 if (err)
980 return err;
981 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
982
983 /*
984 * Apply control port protocol, this allows us to
985 * not encrypt dynamic WEP control frames.
986 */
987 sdata->control_port_protocol = params->crypto.control_port_ethertype;
988 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
989 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
990 &params->crypto,
991 sdata->vif.type);
992
993 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
994 vlan->control_port_protocol =
995 params->crypto.control_port_ethertype;
996 vlan->control_port_no_encrypt =
997 params->crypto.control_port_no_encrypt;
998 vlan->encrypt_headroom =
999 ieee80211_cs_headroom(sdata->local,
1000 &params->crypto,
1001 vlan->vif.type);
1002 }
1003
1004 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1005 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1006 sdata->vif.bss_conf.enable_beacon = true;
1007
1008 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1009 if (params->ssid_len)
1010 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1011 params->ssid_len);
1012 sdata->vif.bss_conf.hidden_ssid =
1013 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1014
1015 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1016 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1017 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1018 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1019 if (params->p2p_opp_ps)
1020 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1021 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1022
1023 err = ieee80211_assign_beacon(sdata, &params->beacon);
1024 if (err < 0) {
1025 ieee80211_vif_release_channel(sdata);
1026 return err;
1027 }
1028 changed |= err;
1029
1030 err = drv_start_ap(sdata->local, sdata);
1031 if (err) {
1032 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1033
1034 if (old)
1035 kfree_rcu(old, rcu_head);
1036 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1037 ieee80211_vif_release_channel(sdata);
1038 return err;
1039 }
1040
1041 ieee80211_recalc_dtim(local, sdata);
1042 ieee80211_bss_info_change_notify(sdata, changed);
1043
1044 netif_carrier_on(dev);
1045 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1046 netif_carrier_on(vlan->dev);
1047
1048 return 0;
1049 }
1050
1051 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1052 struct cfg80211_beacon_data *params)
1053 {
1054 struct ieee80211_sub_if_data *sdata;
1055 struct beacon_data *old;
1056 int err;
1057
1058 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1059
1060 /* don't allow changing the beacon while CSA is in place - offset
1061 * of channel switch counter may change
1062 */
1063 if (sdata->vif.csa_active)
1064 return -EBUSY;
1065
1066 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1067 if (!old)
1068 return -ENOENT;
1069
1070 err = ieee80211_assign_beacon(sdata, params);
1071 if (err < 0)
1072 return err;
1073 ieee80211_bss_info_change_notify(sdata, err);
1074 return 0;
1075 }
1076
1077 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1078 {
1079 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1080 struct ieee80211_sub_if_data *vlan;
1081 struct ieee80211_local *local = sdata->local;
1082 struct beacon_data *old_beacon;
1083 struct probe_resp *old_probe_resp;
1084 struct cfg80211_chan_def chandef;
1085
1086 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1087 if (!old_beacon)
1088 return -ENOENT;
1089 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1090
1091 /* abort any running channel switch */
1092 sdata->vif.csa_active = false;
1093 kfree(sdata->u.ap.next_beacon);
1094 sdata->u.ap.next_beacon = NULL;
1095
1096 /* turn off carrier for this interface and dependent VLANs */
1097 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1098 netif_carrier_off(vlan->dev);
1099 netif_carrier_off(dev);
1100
1101 /* remove beacon and probe response */
1102 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1103 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1104 kfree_rcu(old_beacon, rcu_head);
1105 if (old_probe_resp)
1106 kfree_rcu(old_probe_resp, rcu_head);
1107 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1108
1109 __sta_info_flush(sdata, true);
1110 ieee80211_free_keys(sdata, true);
1111
1112 sdata->vif.bss_conf.enable_beacon = false;
1113 sdata->vif.bss_conf.ssid_len = 0;
1114 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1115 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1116
1117 if (sdata->wdev.cac_started) {
1118 chandef = sdata->vif.bss_conf.chandef;
1119 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1120 cfg80211_cac_event(sdata->dev, &chandef,
1121 NL80211_RADAR_CAC_ABORTED,
1122 GFP_KERNEL);
1123 }
1124
1125 drv_stop_ap(sdata->local, sdata);
1126
1127 /* free all potentially still buffered bcast frames */
1128 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1129 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1130
1131 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1132 mutex_lock(&local->mtx);
1133 ieee80211_vif_release_channel(sdata);
1134 mutex_unlock(&local->mtx);
1135
1136 return 0;
1137 }
1138
1139 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1140 struct iapp_layer2_update {
1141 u8 da[ETH_ALEN]; /* broadcast */
1142 u8 sa[ETH_ALEN]; /* STA addr */
1143 __be16 len; /* 6 */
1144 u8 dsap; /* 0 */
1145 u8 ssap; /* 0 */
1146 u8 control;
1147 u8 xid_info[3];
1148 } __packed;
1149
1150 static void ieee80211_send_layer2_update(struct sta_info *sta)
1151 {
1152 struct iapp_layer2_update *msg;
1153 struct sk_buff *skb;
1154
1155 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1156 * bridge devices */
1157
1158 skb = dev_alloc_skb(sizeof(*msg));
1159 if (!skb)
1160 return;
1161 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1162
1163 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1164 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1165
1166 eth_broadcast_addr(msg->da);
1167 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1168 msg->len = htons(6);
1169 msg->dsap = 0;
1170 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1171 msg->control = 0xaf; /* XID response lsb.1111F101.
1172 * F=0 (no poll command; unsolicited frame) */
1173 msg->xid_info[0] = 0x81; /* XID format identifier */
1174 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1175 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1176
1177 skb->dev = sta->sdata->dev;
1178 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1179 memset(skb->cb, 0, sizeof(skb->cb));
1180 netif_rx_ni(skb);
1181 }
1182
1183 static int sta_apply_auth_flags(struct ieee80211_local *local,
1184 struct sta_info *sta,
1185 u32 mask, u32 set)
1186 {
1187 int ret;
1188
1189 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1190 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1191 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1192 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1193 if (ret)
1194 return ret;
1195 }
1196
1197 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1198 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1199 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1200 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1201 if (ret)
1202 return ret;
1203 }
1204
1205 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1206 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1207 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1208 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1209 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1210 else
1211 ret = 0;
1212 if (ret)
1213 return ret;
1214 }
1215
1216 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1217 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1218 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1219 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1220 if (ret)
1221 return ret;
1222 }
1223
1224 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1225 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1226 test_sta_flag(sta, WLAN_STA_AUTH)) {
1227 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1228 if (ret)
1229 return ret;
1230 }
1231
1232 return 0;
1233 }
1234
1235 static int sta_apply_parameters(struct ieee80211_local *local,
1236 struct sta_info *sta,
1237 struct station_parameters *params)
1238 {
1239 int ret = 0;
1240 struct ieee80211_supported_band *sband;
1241 struct ieee80211_sub_if_data *sdata = sta->sdata;
1242 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1243 u32 mask, set;
1244
1245 sband = local->hw.wiphy->bands[band];
1246
1247 mask = params->sta_flags_mask;
1248 set = params->sta_flags_set;
1249
1250 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1251 /*
1252 * In mesh mode, ASSOCIATED isn't part of the nl80211
1253 * API but must follow AUTHENTICATED for driver state.
1254 */
1255 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1256 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1257 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1258 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1259 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1260 /*
1261 * TDLS -- everything follows authorized, but
1262 * only becoming authorized is possible, not
1263 * going back
1264 */
1265 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1266 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1267 BIT(NL80211_STA_FLAG_ASSOCIATED);
1268 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1269 BIT(NL80211_STA_FLAG_ASSOCIATED);
1270 }
1271 }
1272
1273 ret = sta_apply_auth_flags(local, sta, mask, set);
1274 if (ret)
1275 return ret;
1276
1277 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1278 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1279 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1280 else
1281 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1282 }
1283
1284 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1285 if (set & BIT(NL80211_STA_FLAG_WME)) {
1286 set_sta_flag(sta, WLAN_STA_WME);
1287 sta->sta.wme = true;
1288 } else {
1289 clear_sta_flag(sta, WLAN_STA_WME);
1290 sta->sta.wme = false;
1291 }
1292 }
1293
1294 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1295 if (set & BIT(NL80211_STA_FLAG_MFP))
1296 set_sta_flag(sta, WLAN_STA_MFP);
1297 else
1298 clear_sta_flag(sta, WLAN_STA_MFP);
1299 }
1300
1301 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1302 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1303 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1304 else
1305 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1306 }
1307
1308 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1309 sta->sta.uapsd_queues = params->uapsd_queues;
1310 sta->sta.max_sp = params->max_sp;
1311 }
1312
1313 /*
1314 * cfg80211 validates this (1-2007) and allows setting the AID
1315 * only when creating a new station entry
1316 */
1317 if (params->aid)
1318 sta->sta.aid = params->aid;
1319
1320 /*
1321 * Some of the following updates would be racy if called on an
1322 * existing station, via ieee80211_change_station(). However,
1323 * all such changes are rejected by cfg80211 except for updates
1324 * changing the supported rates on an existing but not yet used
1325 * TDLS peer.
1326 */
1327
1328 if (params->listen_interval >= 0)
1329 sta->listen_interval = params->listen_interval;
1330
1331 if (params->supported_rates) {
1332 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1333 sband, params->supported_rates,
1334 params->supported_rates_len,
1335 &sta->sta.supp_rates[band]);
1336 }
1337
1338 if (params->ht_capa)
1339 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1340 params->ht_capa, sta);
1341
1342 if (params->vht_capa)
1343 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1344 params->vht_capa, sta);
1345
1346 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1347 #ifdef CONFIG_MAC80211_MESH
1348 u32 changed = 0;
1349
1350 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1351 switch (params->plink_state) {
1352 case NL80211_PLINK_ESTAB:
1353 if (sta->plink_state != NL80211_PLINK_ESTAB)
1354 changed = mesh_plink_inc_estab_count(
1355 sdata);
1356 sta->plink_state = params->plink_state;
1357
1358 ieee80211_mps_sta_status_update(sta);
1359 changed |= ieee80211_mps_set_sta_local_pm(sta,
1360 sdata->u.mesh.mshcfg.power_mode);
1361 break;
1362 case NL80211_PLINK_LISTEN:
1363 case NL80211_PLINK_BLOCKED:
1364 case NL80211_PLINK_OPN_SNT:
1365 case NL80211_PLINK_OPN_RCVD:
1366 case NL80211_PLINK_CNF_RCVD:
1367 case NL80211_PLINK_HOLDING:
1368 if (sta->plink_state == NL80211_PLINK_ESTAB)
1369 changed = mesh_plink_dec_estab_count(
1370 sdata);
1371 sta->plink_state = params->plink_state;
1372
1373 ieee80211_mps_sta_status_update(sta);
1374 changed |= ieee80211_mps_set_sta_local_pm(sta,
1375 NL80211_MESH_POWER_UNKNOWN);
1376 break;
1377 default:
1378 /* nothing */
1379 break;
1380 }
1381 }
1382
1383 switch (params->plink_action) {
1384 case NL80211_PLINK_ACTION_NO_ACTION:
1385 /* nothing */
1386 break;
1387 case NL80211_PLINK_ACTION_OPEN:
1388 changed |= mesh_plink_open(sta);
1389 break;
1390 case NL80211_PLINK_ACTION_BLOCK:
1391 changed |= mesh_plink_block(sta);
1392 break;
1393 }
1394
1395 if (params->local_pm)
1396 changed |=
1397 ieee80211_mps_set_sta_local_pm(sta,
1398 params->local_pm);
1399 ieee80211_mbss_info_change_notify(sdata, changed);
1400 #endif
1401 }
1402
1403 return 0;
1404 }
1405
1406 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1407 u8 *mac, struct station_parameters *params)
1408 {
1409 struct ieee80211_local *local = wiphy_priv(wiphy);
1410 struct sta_info *sta;
1411 struct ieee80211_sub_if_data *sdata;
1412 int err;
1413 int layer2_update;
1414
1415 if (params->vlan) {
1416 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1417
1418 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1419 sdata->vif.type != NL80211_IFTYPE_AP)
1420 return -EINVAL;
1421 } else
1422 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1423
1424 if (ether_addr_equal(mac, sdata->vif.addr))
1425 return -EINVAL;
1426
1427 if (is_multicast_ether_addr(mac))
1428 return -EINVAL;
1429
1430 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1431 if (!sta)
1432 return -ENOMEM;
1433
1434 /*
1435 * defaults -- if userspace wants something else we'll
1436 * change it accordingly in sta_apply_parameters()
1437 */
1438 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1439 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1440 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1441 }
1442
1443 err = sta_apply_parameters(local, sta, params);
1444 if (err) {
1445 sta_info_free(local, sta);
1446 return err;
1447 }
1448
1449 /*
1450 * for TDLS, rate control should be initialized only when
1451 * rates are known and station is marked authorized
1452 */
1453 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1454 rate_control_rate_init(sta);
1455
1456 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1457 sdata->vif.type == NL80211_IFTYPE_AP;
1458
1459 err = sta_info_insert_rcu(sta);
1460 if (err) {
1461 rcu_read_unlock();
1462 return err;
1463 }
1464
1465 if (layer2_update)
1466 ieee80211_send_layer2_update(sta);
1467
1468 rcu_read_unlock();
1469
1470 return 0;
1471 }
1472
1473 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1474 u8 *mac)
1475 {
1476 struct ieee80211_sub_if_data *sdata;
1477
1478 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1479
1480 if (mac)
1481 return sta_info_destroy_addr_bss(sdata, mac);
1482
1483 sta_info_flush(sdata);
1484 return 0;
1485 }
1486
1487 static int ieee80211_change_station(struct wiphy *wiphy,
1488 struct net_device *dev, u8 *mac,
1489 struct station_parameters *params)
1490 {
1491 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1492 struct ieee80211_local *local = wiphy_priv(wiphy);
1493 struct sta_info *sta;
1494 struct ieee80211_sub_if_data *vlansdata;
1495 enum cfg80211_station_type statype;
1496 int err;
1497
1498 mutex_lock(&local->sta_mtx);
1499
1500 sta = sta_info_get_bss(sdata, mac);
1501 if (!sta) {
1502 err = -ENOENT;
1503 goto out_err;
1504 }
1505
1506 switch (sdata->vif.type) {
1507 case NL80211_IFTYPE_MESH_POINT:
1508 if (sdata->u.mesh.user_mpm)
1509 statype = CFG80211_STA_MESH_PEER_USER;
1510 else
1511 statype = CFG80211_STA_MESH_PEER_KERNEL;
1512 break;
1513 case NL80211_IFTYPE_ADHOC:
1514 statype = CFG80211_STA_IBSS;
1515 break;
1516 case NL80211_IFTYPE_STATION:
1517 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1518 statype = CFG80211_STA_AP_STA;
1519 break;
1520 }
1521 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1522 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1523 else
1524 statype = CFG80211_STA_TDLS_PEER_SETUP;
1525 break;
1526 case NL80211_IFTYPE_AP:
1527 case NL80211_IFTYPE_AP_VLAN:
1528 statype = CFG80211_STA_AP_CLIENT;
1529 break;
1530 default:
1531 err = -EOPNOTSUPP;
1532 goto out_err;
1533 }
1534
1535 err = cfg80211_check_station_change(wiphy, params, statype);
1536 if (err)
1537 goto out_err;
1538
1539 if (params->vlan && params->vlan != sta->sdata->dev) {
1540 bool prev_4addr = false;
1541 bool new_4addr = false;
1542
1543 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1544
1545 if (params->vlan->ieee80211_ptr->use_4addr) {
1546 if (vlansdata->u.vlan.sta) {
1547 err = -EBUSY;
1548 goto out_err;
1549 }
1550
1551 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1552 new_4addr = true;
1553 }
1554
1555 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1556 sta->sdata->u.vlan.sta) {
1557 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1558 prev_4addr = true;
1559 }
1560
1561 sta->sdata = vlansdata;
1562
1563 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1564 prev_4addr != new_4addr) {
1565 if (new_4addr)
1566 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1567 else
1568 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1569 }
1570
1571 ieee80211_send_layer2_update(sta);
1572 }
1573
1574 err = sta_apply_parameters(local, sta, params);
1575 if (err)
1576 goto out_err;
1577
1578 /* When peer becomes authorized, init rate control as well */
1579 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1580 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1581 rate_control_rate_init(sta);
1582
1583 mutex_unlock(&local->sta_mtx);
1584
1585 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1586 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1587 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1588 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1589 sta_info_tx_streams(sta) != 1) {
1590 ht_dbg(sta->sdata,
1591 "%pM just authorized and MIMO capable - update SMPS\n",
1592 sta->sta.addr);
1593 ieee80211_send_smps_action(sta->sdata,
1594 sta->sdata->bss->req_smps,
1595 sta->sta.addr,
1596 sta->sdata->vif.bss_conf.bssid);
1597 }
1598
1599 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1600 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1601 ieee80211_recalc_ps(local, -1);
1602 ieee80211_recalc_ps_vif(sdata);
1603 }
1604
1605 return 0;
1606 out_err:
1607 mutex_unlock(&local->sta_mtx);
1608 return err;
1609 }
1610
1611 #ifdef CONFIG_MAC80211_MESH
1612 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1613 u8 *dst, u8 *next_hop)
1614 {
1615 struct ieee80211_sub_if_data *sdata;
1616 struct mesh_path *mpath;
1617 struct sta_info *sta;
1618
1619 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1620
1621 rcu_read_lock();
1622 sta = sta_info_get(sdata, next_hop);
1623 if (!sta) {
1624 rcu_read_unlock();
1625 return -ENOENT;
1626 }
1627
1628 mpath = mesh_path_add(sdata, dst);
1629 if (IS_ERR(mpath)) {
1630 rcu_read_unlock();
1631 return PTR_ERR(mpath);
1632 }
1633
1634 mesh_path_fix_nexthop(mpath, sta);
1635
1636 rcu_read_unlock();
1637 return 0;
1638 }
1639
1640 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1641 u8 *dst)
1642 {
1643 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1644
1645 if (dst)
1646 return mesh_path_del(sdata, dst);
1647
1648 mesh_path_flush_by_iface(sdata);
1649 return 0;
1650 }
1651
1652 static int ieee80211_change_mpath(struct wiphy *wiphy,
1653 struct net_device *dev,
1654 u8 *dst, u8 *next_hop)
1655 {
1656 struct ieee80211_sub_if_data *sdata;
1657 struct mesh_path *mpath;
1658 struct sta_info *sta;
1659
1660 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1661
1662 rcu_read_lock();
1663
1664 sta = sta_info_get(sdata, next_hop);
1665 if (!sta) {
1666 rcu_read_unlock();
1667 return -ENOENT;
1668 }
1669
1670 mpath = mesh_path_lookup(sdata, dst);
1671 if (!mpath) {
1672 rcu_read_unlock();
1673 return -ENOENT;
1674 }
1675
1676 mesh_path_fix_nexthop(mpath, sta);
1677
1678 rcu_read_unlock();
1679 return 0;
1680 }
1681
1682 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1683 struct mpath_info *pinfo)
1684 {
1685 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1686
1687 if (next_hop_sta)
1688 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1689 else
1690 memset(next_hop, 0, ETH_ALEN);
1691
1692 memset(pinfo, 0, sizeof(*pinfo));
1693
1694 pinfo->generation = mesh_paths_generation;
1695
1696 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1697 MPATH_INFO_SN |
1698 MPATH_INFO_METRIC |
1699 MPATH_INFO_EXPTIME |
1700 MPATH_INFO_DISCOVERY_TIMEOUT |
1701 MPATH_INFO_DISCOVERY_RETRIES |
1702 MPATH_INFO_FLAGS;
1703
1704 pinfo->frame_qlen = mpath->frame_queue.qlen;
1705 pinfo->sn = mpath->sn;
1706 pinfo->metric = mpath->metric;
1707 if (time_before(jiffies, mpath->exp_time))
1708 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1709 pinfo->discovery_timeout =
1710 jiffies_to_msecs(mpath->discovery_timeout);
1711 pinfo->discovery_retries = mpath->discovery_retries;
1712 if (mpath->flags & MESH_PATH_ACTIVE)
1713 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1714 if (mpath->flags & MESH_PATH_RESOLVING)
1715 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1716 if (mpath->flags & MESH_PATH_SN_VALID)
1717 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1718 if (mpath->flags & MESH_PATH_FIXED)
1719 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1720 if (mpath->flags & MESH_PATH_RESOLVED)
1721 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1722 }
1723
1724 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1725 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1726
1727 {
1728 struct ieee80211_sub_if_data *sdata;
1729 struct mesh_path *mpath;
1730
1731 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1732
1733 rcu_read_lock();
1734 mpath = mesh_path_lookup(sdata, dst);
1735 if (!mpath) {
1736 rcu_read_unlock();
1737 return -ENOENT;
1738 }
1739 memcpy(dst, mpath->dst, ETH_ALEN);
1740 mpath_set_pinfo(mpath, next_hop, pinfo);
1741 rcu_read_unlock();
1742 return 0;
1743 }
1744
1745 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1746 int idx, u8 *dst, u8 *next_hop,
1747 struct mpath_info *pinfo)
1748 {
1749 struct ieee80211_sub_if_data *sdata;
1750 struct mesh_path *mpath;
1751
1752 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1753
1754 rcu_read_lock();
1755 mpath = mesh_path_lookup_by_idx(sdata, idx);
1756 if (!mpath) {
1757 rcu_read_unlock();
1758 return -ENOENT;
1759 }
1760 memcpy(dst, mpath->dst, ETH_ALEN);
1761 mpath_set_pinfo(mpath, next_hop, pinfo);
1762 rcu_read_unlock();
1763 return 0;
1764 }
1765
1766 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1767 struct net_device *dev,
1768 struct mesh_config *conf)
1769 {
1770 struct ieee80211_sub_if_data *sdata;
1771 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1772
1773 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1774 return 0;
1775 }
1776
1777 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1778 {
1779 return (mask >> (parm-1)) & 0x1;
1780 }
1781
1782 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1783 const struct mesh_setup *setup)
1784 {
1785 u8 *new_ie;
1786 const u8 *old_ie;
1787 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1788 struct ieee80211_sub_if_data, u.mesh);
1789
1790 /* allocate information elements */
1791 new_ie = NULL;
1792 old_ie = ifmsh->ie;
1793
1794 if (setup->ie_len) {
1795 new_ie = kmemdup(setup->ie, setup->ie_len,
1796 GFP_KERNEL);
1797 if (!new_ie)
1798 return -ENOMEM;
1799 }
1800 ifmsh->ie_len = setup->ie_len;
1801 ifmsh->ie = new_ie;
1802 kfree(old_ie);
1803
1804 /* now copy the rest of the setup parameters */
1805 ifmsh->mesh_id_len = setup->mesh_id_len;
1806 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1807 ifmsh->mesh_sp_id = setup->sync_method;
1808 ifmsh->mesh_pp_id = setup->path_sel_proto;
1809 ifmsh->mesh_pm_id = setup->path_metric;
1810 ifmsh->user_mpm = setup->user_mpm;
1811 ifmsh->mesh_auth_id = setup->auth_id;
1812 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1813 if (setup->is_authenticated)
1814 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1815 if (setup->is_secure)
1816 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1817
1818 /* mcast rate setting in Mesh Node */
1819 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1820 sizeof(setup->mcast_rate));
1821 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1822
1823 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1824 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1825
1826 return 0;
1827 }
1828
1829 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1830 struct net_device *dev, u32 mask,
1831 const struct mesh_config *nconf)
1832 {
1833 struct mesh_config *conf;
1834 struct ieee80211_sub_if_data *sdata;
1835 struct ieee80211_if_mesh *ifmsh;
1836
1837 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1838 ifmsh = &sdata->u.mesh;
1839
1840 /* Set the config options which we are interested in setting */
1841 conf = &(sdata->u.mesh.mshcfg);
1842 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1843 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1844 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1845 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1846 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1847 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1848 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1849 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1850 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1851 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1852 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1853 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1854 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1855 conf->element_ttl = nconf->element_ttl;
1856 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1857 if (ifmsh->user_mpm)
1858 return -EBUSY;
1859 conf->auto_open_plinks = nconf->auto_open_plinks;
1860 }
1861 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1862 conf->dot11MeshNbrOffsetMaxNeighbor =
1863 nconf->dot11MeshNbrOffsetMaxNeighbor;
1864 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1865 conf->dot11MeshHWMPmaxPREQretries =
1866 nconf->dot11MeshHWMPmaxPREQretries;
1867 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1868 conf->path_refresh_time = nconf->path_refresh_time;
1869 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1870 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1871 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1872 conf->dot11MeshHWMPactivePathTimeout =
1873 nconf->dot11MeshHWMPactivePathTimeout;
1874 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1875 conf->dot11MeshHWMPpreqMinInterval =
1876 nconf->dot11MeshHWMPpreqMinInterval;
1877 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1878 conf->dot11MeshHWMPperrMinInterval =
1879 nconf->dot11MeshHWMPperrMinInterval;
1880 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1881 mask))
1882 conf->dot11MeshHWMPnetDiameterTraversalTime =
1883 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1884 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1885 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1886 ieee80211_mesh_root_setup(ifmsh);
1887 }
1888 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1889 /* our current gate announcement implementation rides on root
1890 * announcements, so require this ifmsh to also be a root node
1891 * */
1892 if (nconf->dot11MeshGateAnnouncementProtocol &&
1893 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1894 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1895 ieee80211_mesh_root_setup(ifmsh);
1896 }
1897 conf->dot11MeshGateAnnouncementProtocol =
1898 nconf->dot11MeshGateAnnouncementProtocol;
1899 }
1900 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1901 conf->dot11MeshHWMPRannInterval =
1902 nconf->dot11MeshHWMPRannInterval;
1903 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1904 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1905 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1906 /* our RSSI threshold implementation is supported only for
1907 * devices that report signal in dBm.
1908 */
1909 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1910 return -ENOTSUPP;
1911 conf->rssi_threshold = nconf->rssi_threshold;
1912 }
1913 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1914 conf->ht_opmode = nconf->ht_opmode;
1915 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1916 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1917 }
1918 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1919 conf->dot11MeshHWMPactivePathToRootTimeout =
1920 nconf->dot11MeshHWMPactivePathToRootTimeout;
1921 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1922 conf->dot11MeshHWMProotInterval =
1923 nconf->dot11MeshHWMProotInterval;
1924 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1925 conf->dot11MeshHWMPconfirmationInterval =
1926 nconf->dot11MeshHWMPconfirmationInterval;
1927 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1928 conf->power_mode = nconf->power_mode;
1929 ieee80211_mps_local_status_update(sdata);
1930 }
1931 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1932 conf->dot11MeshAwakeWindowDuration =
1933 nconf->dot11MeshAwakeWindowDuration;
1934 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1935 conf->plink_timeout = nconf->plink_timeout;
1936 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1937 return 0;
1938 }
1939
1940 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1941 const struct mesh_config *conf,
1942 const struct mesh_setup *setup)
1943 {
1944 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1945 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1946 int err;
1947
1948 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1949 err = copy_mesh_setup(ifmsh, setup);
1950 if (err)
1951 return err;
1952
1953 /* can mesh use other SMPS modes? */
1954 sdata->smps_mode = IEEE80211_SMPS_OFF;
1955 sdata->needed_rx_chains = sdata->local->rx_chains;
1956
1957 mutex_lock(&sdata->local->mtx);
1958 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1959 IEEE80211_CHANCTX_SHARED);
1960 mutex_unlock(&sdata->local->mtx);
1961 if (err)
1962 return err;
1963
1964 return ieee80211_start_mesh(sdata);
1965 }
1966
1967 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1968 {
1969 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1970
1971 ieee80211_stop_mesh(sdata);
1972 mutex_lock(&sdata->local->mtx);
1973 ieee80211_vif_release_channel(sdata);
1974 mutex_unlock(&sdata->local->mtx);
1975
1976 return 0;
1977 }
1978 #endif
1979
1980 static int ieee80211_change_bss(struct wiphy *wiphy,
1981 struct net_device *dev,
1982 struct bss_parameters *params)
1983 {
1984 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1985 enum ieee80211_band band;
1986 u32 changed = 0;
1987
1988 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1989 return -ENOENT;
1990
1991 band = ieee80211_get_sdata_band(sdata);
1992
1993 if (params->use_cts_prot >= 0) {
1994 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1995 changed |= BSS_CHANGED_ERP_CTS_PROT;
1996 }
1997 if (params->use_short_preamble >= 0) {
1998 sdata->vif.bss_conf.use_short_preamble =
1999 params->use_short_preamble;
2000 changed |= BSS_CHANGED_ERP_PREAMBLE;
2001 }
2002
2003 if (!sdata->vif.bss_conf.use_short_slot &&
2004 band == IEEE80211_BAND_5GHZ) {
2005 sdata->vif.bss_conf.use_short_slot = true;
2006 changed |= BSS_CHANGED_ERP_SLOT;
2007 }
2008
2009 if (params->use_short_slot_time >= 0) {
2010 sdata->vif.bss_conf.use_short_slot =
2011 params->use_short_slot_time;
2012 changed |= BSS_CHANGED_ERP_SLOT;
2013 }
2014
2015 if (params->basic_rates) {
2016 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2017 wiphy->bands[band],
2018 params->basic_rates,
2019 params->basic_rates_len,
2020 &sdata->vif.bss_conf.basic_rates);
2021 changed |= BSS_CHANGED_BASIC_RATES;
2022 }
2023
2024 if (params->ap_isolate >= 0) {
2025 if (params->ap_isolate)
2026 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2027 else
2028 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2029 }
2030
2031 if (params->ht_opmode >= 0) {
2032 sdata->vif.bss_conf.ht_operation_mode =
2033 (u16) params->ht_opmode;
2034 changed |= BSS_CHANGED_HT;
2035 }
2036
2037 if (params->p2p_ctwindow >= 0) {
2038 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2039 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2040 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2041 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2042 changed |= BSS_CHANGED_P2P_PS;
2043 }
2044
2045 if (params->p2p_opp_ps > 0) {
2046 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2047 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2048 changed |= BSS_CHANGED_P2P_PS;
2049 } else if (params->p2p_opp_ps == 0) {
2050 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2051 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2052 changed |= BSS_CHANGED_P2P_PS;
2053 }
2054
2055 ieee80211_bss_info_change_notify(sdata, changed);
2056
2057 return 0;
2058 }
2059
2060 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2061 struct net_device *dev,
2062 struct ieee80211_txq_params *params)
2063 {
2064 struct ieee80211_local *local = wiphy_priv(wiphy);
2065 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2066 struct ieee80211_tx_queue_params p;
2067
2068 if (!local->ops->conf_tx)
2069 return -EOPNOTSUPP;
2070
2071 if (local->hw.queues < IEEE80211_NUM_ACS)
2072 return -EOPNOTSUPP;
2073
2074 memset(&p, 0, sizeof(p));
2075 p.aifs = params->aifs;
2076 p.cw_max = params->cwmax;
2077 p.cw_min = params->cwmin;
2078 p.txop = params->txop;
2079
2080 /*
2081 * Setting tx queue params disables u-apsd because it's only
2082 * called in master mode.
2083 */
2084 p.uapsd = false;
2085
2086 sdata->tx_conf[params->ac] = p;
2087 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2088 wiphy_debug(local->hw.wiphy,
2089 "failed to set TX queue parameters for AC %d\n",
2090 params->ac);
2091 return -EINVAL;
2092 }
2093
2094 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2095
2096 return 0;
2097 }
2098
2099 #ifdef CONFIG_PM
2100 static int ieee80211_suspend(struct wiphy *wiphy,
2101 struct cfg80211_wowlan *wowlan)
2102 {
2103 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2104 }
2105
2106 static int ieee80211_resume(struct wiphy *wiphy)
2107 {
2108 return __ieee80211_resume(wiphy_priv(wiphy));
2109 }
2110 #else
2111 #define ieee80211_suspend NULL
2112 #define ieee80211_resume NULL
2113 #endif
2114
2115 static int ieee80211_scan(struct wiphy *wiphy,
2116 struct cfg80211_scan_request *req)
2117 {
2118 struct ieee80211_sub_if_data *sdata;
2119
2120 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2121
2122 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2123 case NL80211_IFTYPE_STATION:
2124 case NL80211_IFTYPE_ADHOC:
2125 case NL80211_IFTYPE_MESH_POINT:
2126 case NL80211_IFTYPE_P2P_CLIENT:
2127 case NL80211_IFTYPE_P2P_DEVICE:
2128 break;
2129 case NL80211_IFTYPE_P2P_GO:
2130 if (sdata->local->ops->hw_scan)
2131 break;
2132 /*
2133 * FIXME: implement NoA while scanning in software,
2134 * for now fall through to allow scanning only when
2135 * beaconing hasn't been configured yet
2136 */
2137 case NL80211_IFTYPE_AP:
2138 /*
2139 * If the scan has been forced (and the driver supports
2140 * forcing), don't care about being beaconing already.
2141 * This will create problems to the attached stations (e.g. all
2142 * the frames sent while scanning on other channel will be
2143 * lost)
2144 */
2145 if (sdata->u.ap.beacon &&
2146 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2147 !(req->flags & NL80211_SCAN_FLAG_AP)))
2148 return -EOPNOTSUPP;
2149 break;
2150 default:
2151 return -EOPNOTSUPP;
2152 }
2153
2154 return ieee80211_request_scan(sdata, req);
2155 }
2156
2157 static int
2158 ieee80211_sched_scan_start(struct wiphy *wiphy,
2159 struct net_device *dev,
2160 struct cfg80211_sched_scan_request *req)
2161 {
2162 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2163
2164 if (!sdata->local->ops->sched_scan_start)
2165 return -EOPNOTSUPP;
2166
2167 return ieee80211_request_sched_scan_start(sdata, req);
2168 }
2169
2170 static int
2171 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2172 {
2173 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2174
2175 if (!sdata->local->ops->sched_scan_stop)
2176 return -EOPNOTSUPP;
2177
2178 return ieee80211_request_sched_scan_stop(sdata);
2179 }
2180
2181 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2182 struct cfg80211_auth_request *req)
2183 {
2184 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2185 }
2186
2187 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2188 struct cfg80211_assoc_request *req)
2189 {
2190 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2191 }
2192
2193 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2194 struct cfg80211_deauth_request *req)
2195 {
2196 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2197 }
2198
2199 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2200 struct cfg80211_disassoc_request *req)
2201 {
2202 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2203 }
2204
2205 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2206 struct cfg80211_ibss_params *params)
2207 {
2208 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2209 }
2210
2211 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2212 {
2213 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2214 }
2215
2216 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2217 int rate[IEEE80211_NUM_BANDS])
2218 {
2219 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2220
2221 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2222 sizeof(int) * IEEE80211_NUM_BANDS);
2223
2224 return 0;
2225 }
2226
2227 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2228 {
2229 struct ieee80211_local *local = wiphy_priv(wiphy);
2230 int err;
2231
2232 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2233 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2234
2235 if (err)
2236 return err;
2237 }
2238
2239 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2240 err = drv_set_coverage_class(local, wiphy->coverage_class);
2241
2242 if (err)
2243 return err;
2244 }
2245
2246 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2247 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2248
2249 if (err)
2250 return err;
2251 }
2252
2253 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2254 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2255 return -EINVAL;
2256 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2257 }
2258 if (changed & WIPHY_PARAM_RETRY_LONG) {
2259 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2260 return -EINVAL;
2261 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2262 }
2263 if (changed &
2264 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2265 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2266
2267 return 0;
2268 }
2269
2270 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2271 struct wireless_dev *wdev,
2272 enum nl80211_tx_power_setting type, int mbm)
2273 {
2274 struct ieee80211_local *local = wiphy_priv(wiphy);
2275 struct ieee80211_sub_if_data *sdata;
2276
2277 if (wdev) {
2278 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2279
2280 switch (type) {
2281 case NL80211_TX_POWER_AUTOMATIC:
2282 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2283 break;
2284 case NL80211_TX_POWER_LIMITED:
2285 case NL80211_TX_POWER_FIXED:
2286 if (mbm < 0 || (mbm % 100))
2287 return -EOPNOTSUPP;
2288 sdata->user_power_level = MBM_TO_DBM(mbm);
2289 break;
2290 }
2291
2292 ieee80211_recalc_txpower(sdata);
2293
2294 return 0;
2295 }
2296
2297 switch (type) {
2298 case NL80211_TX_POWER_AUTOMATIC:
2299 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2300 break;
2301 case NL80211_TX_POWER_LIMITED:
2302 case NL80211_TX_POWER_FIXED:
2303 if (mbm < 0 || (mbm % 100))
2304 return -EOPNOTSUPP;
2305 local->user_power_level = MBM_TO_DBM(mbm);
2306 break;
2307 }
2308
2309 mutex_lock(&local->iflist_mtx);
2310 list_for_each_entry(sdata, &local->interfaces, list)
2311 sdata->user_power_level = local->user_power_level;
2312 list_for_each_entry(sdata, &local->interfaces, list)
2313 ieee80211_recalc_txpower(sdata);
2314 mutex_unlock(&local->iflist_mtx);
2315
2316 return 0;
2317 }
2318
2319 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2320 struct wireless_dev *wdev,
2321 int *dbm)
2322 {
2323 struct ieee80211_local *local = wiphy_priv(wiphy);
2324 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2325
2326 if (!local->use_chanctx)
2327 *dbm = local->hw.conf.power_level;
2328 else
2329 *dbm = sdata->vif.bss_conf.txpower;
2330
2331 return 0;
2332 }
2333
2334 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2335 const u8 *addr)
2336 {
2337 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2338
2339 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2340
2341 return 0;
2342 }
2343
2344 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2345 {
2346 struct ieee80211_local *local = wiphy_priv(wiphy);
2347
2348 drv_rfkill_poll(local);
2349 }
2350
2351 #ifdef CONFIG_NL80211_TESTMODE
2352 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2353 struct wireless_dev *wdev,
2354 void *data, int len)
2355 {
2356 struct ieee80211_local *local = wiphy_priv(wiphy);
2357 struct ieee80211_vif *vif = NULL;
2358
2359 if (!local->ops->testmode_cmd)
2360 return -EOPNOTSUPP;
2361
2362 if (wdev) {
2363 struct ieee80211_sub_if_data *sdata;
2364
2365 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2366 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2367 vif = &sdata->vif;
2368 }
2369
2370 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2371 }
2372
2373 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2374 struct sk_buff *skb,
2375 struct netlink_callback *cb,
2376 void *data, int len)
2377 {
2378 struct ieee80211_local *local = wiphy_priv(wiphy);
2379
2380 if (!local->ops->testmode_dump)
2381 return -EOPNOTSUPP;
2382
2383 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2384 }
2385 #endif
2386
2387 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2388 enum ieee80211_smps_mode smps_mode)
2389 {
2390 struct sta_info *sta;
2391 enum ieee80211_smps_mode old_req;
2392 int i;
2393
2394 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2395 return -EINVAL;
2396
2397 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2398 return 0;
2399
2400 old_req = sdata->u.ap.req_smps;
2401 sdata->u.ap.req_smps = smps_mode;
2402
2403 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2404 if (old_req == smps_mode ||
2405 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2406 return 0;
2407
2408 /* If no associated stations, there's no need to do anything */
2409 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2410 sdata->smps_mode = smps_mode;
2411 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2412 return 0;
2413 }
2414
2415 ht_dbg(sdata,
2416 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2417 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2418
2419 mutex_lock(&sdata->local->sta_mtx);
2420 for (i = 0; i < STA_HASH_SIZE; i++) {
2421 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2422 lockdep_is_held(&sdata->local->sta_mtx));
2423 sta;
2424 sta = rcu_dereference_protected(sta->hnext,
2425 lockdep_is_held(&sdata->local->sta_mtx))) {
2426 /*
2427 * Only stations associated to our AP and
2428 * associated VLANs
2429 */
2430 if (sta->sdata->bss != &sdata->u.ap)
2431 continue;
2432
2433 /* This station doesn't support MIMO - skip it */
2434 if (sta_info_tx_streams(sta) == 1)
2435 continue;
2436
2437 /*
2438 * Don't wake up a STA just to send the action frame
2439 * unless we are getting more restrictive.
2440 */
2441 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2442 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2443 smps_mode)) {
2444 ht_dbg(sdata,
2445 "Won't send SMPS to sleeping STA %pM\n",
2446 sta->sta.addr);
2447 continue;
2448 }
2449
2450 /*
2451 * If the STA is not authorized, wait until it gets
2452 * authorized and the action frame will be sent then.
2453 */
2454 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2455 continue;
2456
2457 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2458 ieee80211_send_smps_action(sdata, smps_mode,
2459 sta->sta.addr,
2460 sdata->vif.bss_conf.bssid);
2461 }
2462 }
2463 mutex_unlock(&sdata->local->sta_mtx);
2464
2465 sdata->smps_mode = smps_mode;
2466 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2467
2468 return 0;
2469 }
2470
2471 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2472 enum ieee80211_smps_mode smps_mode)
2473 {
2474 const u8 *ap;
2475 enum ieee80211_smps_mode old_req;
2476 int err;
2477
2478 lockdep_assert_held(&sdata->wdev.mtx);
2479
2480 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2481 return -EINVAL;
2482
2483 old_req = sdata->u.mgd.req_smps;
2484 sdata->u.mgd.req_smps = smps_mode;
2485
2486 if (old_req == smps_mode &&
2487 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2488 return 0;
2489
2490 /*
2491 * If not associated, or current association is not an HT
2492 * association, there's no need to do anything, just store
2493 * the new value until we associate.
2494 */
2495 if (!sdata->u.mgd.associated ||
2496 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2497 return 0;
2498
2499 ap = sdata->u.mgd.associated->bssid;
2500
2501 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2502 if (sdata->u.mgd.powersave)
2503 smps_mode = IEEE80211_SMPS_DYNAMIC;
2504 else
2505 smps_mode = IEEE80211_SMPS_OFF;
2506 }
2507
2508 /* send SM PS frame to AP */
2509 err = ieee80211_send_smps_action(sdata, smps_mode,
2510 ap, ap);
2511 if (err)
2512 sdata->u.mgd.req_smps = old_req;
2513
2514 return err;
2515 }
2516
2517 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2518 bool enabled, int timeout)
2519 {
2520 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2521 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2522
2523 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2524 return -EOPNOTSUPP;
2525
2526 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2527 return -EOPNOTSUPP;
2528
2529 if (enabled == sdata->u.mgd.powersave &&
2530 timeout == local->dynamic_ps_forced_timeout)
2531 return 0;
2532
2533 sdata->u.mgd.powersave = enabled;
2534 local->dynamic_ps_forced_timeout = timeout;
2535
2536 /* no change, but if automatic follow powersave */
2537 sdata_lock(sdata);
2538 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2539 sdata_unlock(sdata);
2540
2541 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2542 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2543
2544 ieee80211_recalc_ps(local, -1);
2545 ieee80211_recalc_ps_vif(sdata);
2546
2547 return 0;
2548 }
2549
2550 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2551 struct net_device *dev,
2552 s32 rssi_thold, u32 rssi_hyst)
2553 {
2554 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2555 struct ieee80211_vif *vif = &sdata->vif;
2556 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2557
2558 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2559 rssi_hyst == bss_conf->cqm_rssi_hyst)
2560 return 0;
2561
2562 bss_conf->cqm_rssi_thold = rssi_thold;
2563 bss_conf->cqm_rssi_hyst = rssi_hyst;
2564
2565 /* tell the driver upon association, unless already associated */
2566 if (sdata->u.mgd.associated &&
2567 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2568 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2569
2570 return 0;
2571 }
2572
2573 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2574 struct net_device *dev,
2575 const u8 *addr,
2576 const struct cfg80211_bitrate_mask *mask)
2577 {
2578 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2579 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2580 int i, ret;
2581
2582 if (!ieee80211_sdata_running(sdata))
2583 return -ENETDOWN;
2584
2585 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2586 ret = drv_set_bitrate_mask(local, sdata, mask);
2587 if (ret)
2588 return ret;
2589 }
2590
2591 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2592 struct ieee80211_supported_band *sband = wiphy->bands[i];
2593 int j;
2594
2595 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2596 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2597 sizeof(mask->control[i].ht_mcs));
2598
2599 sdata->rc_has_mcs_mask[i] = false;
2600 if (!sband)
2601 continue;
2602
2603 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2604 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2605 sdata->rc_has_mcs_mask[i] = true;
2606 break;
2607 }
2608 }
2609
2610 return 0;
2611 }
2612
2613 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2614 struct ieee80211_sub_if_data *sdata,
2615 struct ieee80211_channel *channel,
2616 unsigned int duration, u64 *cookie,
2617 struct sk_buff *txskb,
2618 enum ieee80211_roc_type type)
2619 {
2620 struct ieee80211_roc_work *roc, *tmp;
2621 bool queued = false;
2622 int ret;
2623
2624 lockdep_assert_held(&local->mtx);
2625
2626 if (local->use_chanctx && !local->ops->remain_on_channel)
2627 return -EOPNOTSUPP;
2628
2629 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2630 if (!roc)
2631 return -ENOMEM;
2632
2633 roc->chan = channel;
2634 roc->duration = duration;
2635 roc->req_duration = duration;
2636 roc->frame = txskb;
2637 roc->type = type;
2638 roc->mgmt_tx_cookie = (unsigned long)txskb;
2639 roc->sdata = sdata;
2640 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2641 INIT_LIST_HEAD(&roc->dependents);
2642
2643 /*
2644 * cookie is either the roc cookie (for normal roc)
2645 * or the SKB (for mgmt TX)
2646 */
2647 if (!txskb) {
2648 /* local->mtx protects this */
2649 local->roc_cookie_counter++;
2650 roc->cookie = local->roc_cookie_counter;
2651 /* wow, you wrapped 64 bits ... more likely a bug */
2652 if (WARN_ON(roc->cookie == 0)) {
2653 roc->cookie = 1;
2654 local->roc_cookie_counter++;
2655 }
2656 *cookie = roc->cookie;
2657 } else {
2658 *cookie = (unsigned long)txskb;
2659 }
2660
2661 /* if there's one pending or we're scanning, queue this one */
2662 if (!list_empty(&local->roc_list) ||
2663 local->scanning || local->radar_detect_enabled)
2664 goto out_check_combine;
2665
2666 /* if not HW assist, just queue & schedule work */
2667 if (!local->ops->remain_on_channel) {
2668 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2669 goto out_queue;
2670 }
2671
2672 /* otherwise actually kick it off here (for error handling) */
2673
2674 /*
2675 * If the duration is zero, then the driver
2676 * wouldn't actually do anything. Set it to
2677 * 10 for now.
2678 *
2679 * TODO: cancel the off-channel operation
2680 * when we get the SKB's TX status and
2681 * the wait time was zero before.
2682 */
2683 if (!duration)
2684 duration = 10;
2685
2686 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2687 if (ret) {
2688 kfree(roc);
2689 return ret;
2690 }
2691
2692 roc->started = true;
2693 goto out_queue;
2694
2695 out_check_combine:
2696 list_for_each_entry(tmp, &local->roc_list, list) {
2697 if (tmp->chan != channel || tmp->sdata != sdata)
2698 continue;
2699
2700 /*
2701 * Extend this ROC if possible:
2702 *
2703 * If it hasn't started yet, just increase the duration
2704 * and add the new one to the list of dependents.
2705 * If the type of the new ROC has higher priority, modify the
2706 * type of the previous one to match that of the new one.
2707 */
2708 if (!tmp->started) {
2709 list_add_tail(&roc->list, &tmp->dependents);
2710 tmp->duration = max(tmp->duration, roc->duration);
2711 tmp->type = max(tmp->type, roc->type);
2712 queued = true;
2713 break;
2714 }
2715
2716 /* If it has already started, it's more difficult ... */
2717 if (local->ops->remain_on_channel) {
2718 unsigned long j = jiffies;
2719
2720 /*
2721 * In the offloaded ROC case, if it hasn't begun, add
2722 * this new one to the dependent list to be handled
2723 * when the master one begins. If it has begun,
2724 * check that there's still a minimum time left and
2725 * if so, start this one, transmitting the frame, but
2726 * add it to the list directly after this one with
2727 * a reduced time so we'll ask the driver to execute
2728 * it right after finishing the previous one, in the
2729 * hope that it'll also be executed right afterwards,
2730 * effectively extending the old one.
2731 * If there's no minimum time left, just add it to the
2732 * normal list.
2733 * TODO: the ROC type is ignored here, assuming that it
2734 * is better to immediately use the current ROC.
2735 */
2736 if (!tmp->hw_begun) {
2737 list_add_tail(&roc->list, &tmp->dependents);
2738 queued = true;
2739 break;
2740 }
2741
2742 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2743 tmp->hw_start_time +
2744 msecs_to_jiffies(tmp->duration))) {
2745 int new_dur;
2746
2747 ieee80211_handle_roc_started(roc);
2748
2749 new_dur = roc->duration -
2750 jiffies_to_msecs(tmp->hw_start_time +
2751 msecs_to_jiffies(
2752 tmp->duration) -
2753 j);
2754
2755 if (new_dur > 0) {
2756 /* add right after tmp */
2757 list_add(&roc->list, &tmp->list);
2758 } else {
2759 list_add_tail(&roc->list,
2760 &tmp->dependents);
2761 }
2762 queued = true;
2763 }
2764 } else if (del_timer_sync(&tmp->work.timer)) {
2765 unsigned long new_end;
2766
2767 /*
2768 * In the software ROC case, cancel the timer, if
2769 * that fails then the finish work is already
2770 * queued/pending and thus we queue the new ROC
2771 * normally, if that succeeds then we can extend
2772 * the timer duration and TX the frame (if any.)
2773 */
2774
2775 list_add_tail(&roc->list, &tmp->dependents);
2776 queued = true;
2777
2778 new_end = jiffies + msecs_to_jiffies(roc->duration);
2779
2780 /* ok, it was started & we canceled timer */
2781 if (time_after(new_end, tmp->work.timer.expires))
2782 mod_timer(&tmp->work.timer, new_end);
2783 else
2784 add_timer(&tmp->work.timer);
2785
2786 ieee80211_handle_roc_started(roc);
2787 }
2788 break;
2789 }
2790
2791 out_queue:
2792 if (!queued)
2793 list_add_tail(&roc->list, &local->roc_list);
2794
2795 return 0;
2796 }
2797
2798 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2799 struct wireless_dev *wdev,
2800 struct ieee80211_channel *chan,
2801 unsigned int duration,
2802 u64 *cookie)
2803 {
2804 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2805 struct ieee80211_local *local = sdata->local;
2806 int ret;
2807
2808 mutex_lock(&local->mtx);
2809 ret = ieee80211_start_roc_work(local, sdata, chan,
2810 duration, cookie, NULL,
2811 IEEE80211_ROC_TYPE_NORMAL);
2812 mutex_unlock(&local->mtx);
2813
2814 return ret;
2815 }
2816
2817 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2818 u64 cookie, bool mgmt_tx)
2819 {
2820 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2821 int ret;
2822
2823 mutex_lock(&local->mtx);
2824 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2825 struct ieee80211_roc_work *dep, *tmp2;
2826
2827 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2828 if (!mgmt_tx && dep->cookie != cookie)
2829 continue;
2830 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2831 continue;
2832 /* found dependent item -- just remove it */
2833 list_del(&dep->list);
2834 mutex_unlock(&local->mtx);
2835
2836 ieee80211_roc_notify_destroy(dep, true);
2837 return 0;
2838 }
2839
2840 if (!mgmt_tx && roc->cookie != cookie)
2841 continue;
2842 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2843 continue;
2844
2845 found = roc;
2846 break;
2847 }
2848
2849 if (!found) {
2850 mutex_unlock(&local->mtx);
2851 return -ENOENT;
2852 }
2853
2854 /*
2855 * We found the item to cancel, so do that. Note that it
2856 * may have dependents, which we also cancel (and send
2857 * the expired signal for.) Not doing so would be quite
2858 * tricky here, but we may need to fix it later.
2859 */
2860
2861 if (local->ops->remain_on_channel) {
2862 if (found->started) {
2863 ret = drv_cancel_remain_on_channel(local);
2864 if (WARN_ON_ONCE(ret)) {
2865 mutex_unlock(&local->mtx);
2866 return ret;
2867 }
2868 }
2869
2870 list_del(&found->list);
2871
2872 if (found->started)
2873 ieee80211_start_next_roc(local);
2874 mutex_unlock(&local->mtx);
2875
2876 ieee80211_roc_notify_destroy(found, true);
2877 } else {
2878 /* work may be pending so use it all the time */
2879 found->abort = true;
2880 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2881
2882 mutex_unlock(&local->mtx);
2883
2884 /* work will clean up etc */
2885 flush_delayed_work(&found->work);
2886 WARN_ON(!found->to_be_freed);
2887 kfree(found);
2888 }
2889
2890 return 0;
2891 }
2892
2893 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2894 struct wireless_dev *wdev,
2895 u64 cookie)
2896 {
2897 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2898 struct ieee80211_local *local = sdata->local;
2899
2900 return ieee80211_cancel_roc(local, cookie, false);
2901 }
2902
2903 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2904 struct net_device *dev,
2905 struct cfg80211_chan_def *chandef)
2906 {
2907 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2908 struct ieee80211_local *local = sdata->local;
2909 unsigned long timeout;
2910 int err;
2911
2912 mutex_lock(&local->mtx);
2913 if (!list_empty(&local->roc_list) || local->scanning) {
2914 err = -EBUSY;
2915 goto out_unlock;
2916 }
2917
2918 /* whatever, but channel contexts should not complain about that one */
2919 sdata->smps_mode = IEEE80211_SMPS_OFF;
2920 sdata->needed_rx_chains = local->rx_chains;
2921 sdata->radar_required = true;
2922
2923 err = ieee80211_vif_use_channel(sdata, chandef,
2924 IEEE80211_CHANCTX_SHARED);
2925 if (err)
2926 goto out_unlock;
2927
2928 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2929 ieee80211_queue_delayed_work(&sdata->local->hw,
2930 &sdata->dfs_cac_timer_work, timeout);
2931
2932 out_unlock:
2933 mutex_unlock(&local->mtx);
2934 return err;
2935 }
2936
2937 static struct cfg80211_beacon_data *
2938 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2939 {
2940 struct cfg80211_beacon_data *new_beacon;
2941 u8 *pos;
2942 int len;
2943
2944 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2945 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2946 beacon->probe_resp_len;
2947
2948 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2949 if (!new_beacon)
2950 return NULL;
2951
2952 pos = (u8 *)(new_beacon + 1);
2953 if (beacon->head_len) {
2954 new_beacon->head_len = beacon->head_len;
2955 new_beacon->head = pos;
2956 memcpy(pos, beacon->head, beacon->head_len);
2957 pos += beacon->head_len;
2958 }
2959 if (beacon->tail_len) {
2960 new_beacon->tail_len = beacon->tail_len;
2961 new_beacon->tail = pos;
2962 memcpy(pos, beacon->tail, beacon->tail_len);
2963 pos += beacon->tail_len;
2964 }
2965 if (beacon->beacon_ies_len) {
2966 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2967 new_beacon->beacon_ies = pos;
2968 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2969 pos += beacon->beacon_ies_len;
2970 }
2971 if (beacon->proberesp_ies_len) {
2972 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2973 new_beacon->proberesp_ies = pos;
2974 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2975 pos += beacon->proberesp_ies_len;
2976 }
2977 if (beacon->assocresp_ies_len) {
2978 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2979 new_beacon->assocresp_ies = pos;
2980 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2981 pos += beacon->assocresp_ies_len;
2982 }
2983 if (beacon->probe_resp_len) {
2984 new_beacon->probe_resp_len = beacon->probe_resp_len;
2985 beacon->probe_resp = pos;
2986 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2987 pos += beacon->probe_resp_len;
2988 }
2989
2990 return new_beacon;
2991 }
2992
2993 void ieee80211_csa_finalize_work(struct work_struct *work)
2994 {
2995 struct ieee80211_sub_if_data *sdata =
2996 container_of(work, struct ieee80211_sub_if_data,
2997 csa_finalize_work);
2998 struct ieee80211_local *local = sdata->local;
2999 int err, changed = 0;
3000
3001 sdata_lock(sdata);
3002 /* AP might have been stopped while waiting for the lock. */
3003 if (!sdata->vif.csa_active)
3004 goto unlock;
3005
3006 if (!ieee80211_sdata_running(sdata))
3007 goto unlock;
3008
3009 sdata->radar_required = sdata->csa_radar_required;
3010 mutex_lock(&local->mtx);
3011 err = ieee80211_vif_change_channel(sdata, &changed);
3012 mutex_unlock(&local->mtx);
3013 if (WARN_ON(err < 0))
3014 goto unlock;
3015
3016 if (!local->use_chanctx) {
3017 local->_oper_chandef = sdata->csa_chandef;
3018 ieee80211_hw_config(local, 0);
3019 }
3020
3021 ieee80211_bss_info_change_notify(sdata, changed);
3022
3023 sdata->vif.csa_active = false;
3024 switch (sdata->vif.type) {
3025 case NL80211_IFTYPE_AP:
3026 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3027 if (err < 0)
3028 goto unlock;
3029
3030 changed |= err;
3031 kfree(sdata->u.ap.next_beacon);
3032 sdata->u.ap.next_beacon = NULL;
3033
3034 ieee80211_bss_info_change_notify(sdata, err);
3035 break;
3036 case NL80211_IFTYPE_ADHOC:
3037 ieee80211_ibss_finish_csa(sdata);
3038 break;
3039 #ifdef CONFIG_MAC80211_MESH
3040 case NL80211_IFTYPE_MESH_POINT:
3041 err = ieee80211_mesh_finish_csa(sdata);
3042 if (err < 0)
3043 goto unlock;
3044 break;
3045 #endif
3046 default:
3047 WARN_ON(1);
3048 goto unlock;
3049 }
3050
3051 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3052 IEEE80211_MAX_QUEUE_MAP,
3053 IEEE80211_QUEUE_STOP_REASON_CSA);
3054
3055 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3056
3057 unlock:
3058 sdata_unlock(sdata);
3059 }
3060
3061 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3062 struct cfg80211_csa_settings *params)
3063 {
3064 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3065 struct ieee80211_local *local = sdata->local;
3066 struct ieee80211_chanctx_conf *chanctx_conf;
3067 struct ieee80211_chanctx *chanctx;
3068 struct ieee80211_if_mesh __maybe_unused *ifmsh;
3069 int err, num_chanctx;
3070
3071 lockdep_assert_held(&sdata->wdev.mtx);
3072
3073 if (!list_empty(&local->roc_list) || local->scanning)
3074 return -EBUSY;
3075
3076 if (sdata->wdev.cac_started)
3077 return -EBUSY;
3078
3079 if (cfg80211_chandef_identical(&params->chandef,
3080 &sdata->vif.bss_conf.chandef))
3081 return -EINVAL;
3082
3083 rcu_read_lock();
3084 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3085 if (!chanctx_conf) {
3086 rcu_read_unlock();
3087 return -EBUSY;
3088 }
3089
3090 /* don't handle for multi-VIF cases */
3091 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
3092 if (chanctx->refcount > 1) {
3093 rcu_read_unlock();
3094 return -EBUSY;
3095 }
3096 num_chanctx = 0;
3097 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3098 num_chanctx++;
3099 rcu_read_unlock();
3100
3101 if (num_chanctx > 1)
3102 return -EBUSY;
3103
3104 /* don't allow another channel switch if one is already active. */
3105 if (sdata->vif.csa_active)
3106 return -EBUSY;
3107
3108 switch (sdata->vif.type) {
3109 case NL80211_IFTYPE_AP:
3110 sdata->csa_counter_offset_beacon =
3111 params->counter_offset_beacon;
3112 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3113 sdata->u.ap.next_beacon =
3114 cfg80211_beacon_dup(&params->beacon_after);
3115 if (!sdata->u.ap.next_beacon)
3116 return -ENOMEM;
3117
3118 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3119 if (err < 0) {
3120 kfree(sdata->u.ap.next_beacon);
3121 return err;
3122 }
3123 break;
3124 case NL80211_IFTYPE_ADHOC:
3125 if (!sdata->vif.bss_conf.ibss_joined)
3126 return -EINVAL;
3127
3128 if (params->chandef.width != sdata->u.ibss.chandef.width)
3129 return -EINVAL;
3130
3131 switch (params->chandef.width) {
3132 case NL80211_CHAN_WIDTH_40:
3133 if (cfg80211_get_chandef_type(&params->chandef) !=
3134 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3135 return -EINVAL;
3136 case NL80211_CHAN_WIDTH_5:
3137 case NL80211_CHAN_WIDTH_10:
3138 case NL80211_CHAN_WIDTH_20_NOHT:
3139 case NL80211_CHAN_WIDTH_20:
3140 break;
3141 default:
3142 return -EINVAL;
3143 }
3144
3145 /* changes into another band are not supported */
3146 if (sdata->u.ibss.chandef.chan->band !=
3147 params->chandef.chan->band)
3148 return -EINVAL;
3149
3150 err = ieee80211_ibss_csa_beacon(sdata, params);
3151 if (err < 0)
3152 return err;
3153 break;
3154 #ifdef CONFIG_MAC80211_MESH
3155 case NL80211_IFTYPE_MESH_POINT:
3156 ifmsh = &sdata->u.mesh;
3157
3158 if (!ifmsh->mesh_id)
3159 return -EINVAL;
3160
3161 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3162 return -EINVAL;
3163
3164 /* changes into another band are not supported */
3165 if (sdata->vif.bss_conf.chandef.chan->band !=
3166 params->chandef.chan->band)
3167 return -EINVAL;
3168
3169 ifmsh->chsw_init = true;
3170 if (!ifmsh->pre_value)
3171 ifmsh->pre_value = 1;
3172 else
3173 ifmsh->pre_value++;
3174
3175 err = ieee80211_mesh_csa_beacon(sdata, params, true);
3176 if (err < 0) {
3177 ifmsh->chsw_init = false;
3178 return err;
3179 }
3180 break;
3181 #endif
3182 default:
3183 return -EOPNOTSUPP;
3184 }
3185
3186 sdata->csa_radar_required = params->radar_required;
3187
3188 if (params->block_tx)
3189 ieee80211_stop_queues_by_reason(&local->hw,
3190 IEEE80211_MAX_QUEUE_MAP,
3191 IEEE80211_QUEUE_STOP_REASON_CSA);
3192
3193 sdata->csa_chandef = params->chandef;
3194 sdata->vif.csa_active = true;
3195
3196 ieee80211_bss_info_change_notify(sdata, err);
3197 drv_channel_switch_beacon(sdata, &params->chandef);
3198
3199 return 0;
3200 }
3201
3202 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3203 struct cfg80211_mgmt_tx_params *params,
3204 u64 *cookie)
3205 {
3206 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3207 struct ieee80211_local *local = sdata->local;
3208 struct sk_buff *skb;
3209 struct sta_info *sta;
3210 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3211 bool need_offchan = false;
3212 u32 flags;
3213 int ret;
3214
3215 if (params->dont_wait_for_ack)
3216 flags = IEEE80211_TX_CTL_NO_ACK;
3217 else
3218 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3219 IEEE80211_TX_CTL_REQ_TX_STATUS;
3220
3221 if (params->no_cck)
3222 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3223
3224 switch (sdata->vif.type) {
3225 case NL80211_IFTYPE_ADHOC:
3226 if (!sdata->vif.bss_conf.ibss_joined)
3227 need_offchan = true;
3228 /* fall through */
3229 #ifdef CONFIG_MAC80211_MESH
3230 case NL80211_IFTYPE_MESH_POINT:
3231 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3232 !sdata->u.mesh.mesh_id_len)
3233 need_offchan = true;
3234 /* fall through */
3235 #endif
3236 case NL80211_IFTYPE_AP:
3237 case NL80211_IFTYPE_AP_VLAN:
3238 case NL80211_IFTYPE_P2P_GO:
3239 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3240 !ieee80211_vif_is_mesh(&sdata->vif) &&
3241 !rcu_access_pointer(sdata->bss->beacon))
3242 need_offchan = true;
3243 if (!ieee80211_is_action(mgmt->frame_control) ||
3244 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3245 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3246 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3247 break;
3248 rcu_read_lock();
3249 sta = sta_info_get(sdata, mgmt->da);
3250 rcu_read_unlock();
3251 if (!sta)
3252 return -ENOLINK;
3253 break;
3254 case NL80211_IFTYPE_STATION:
3255 case NL80211_IFTYPE_P2P_CLIENT:
3256 if (!sdata->u.mgd.associated)
3257 need_offchan = true;
3258 break;
3259 case NL80211_IFTYPE_P2P_DEVICE:
3260 need_offchan = true;
3261 break;
3262 default:
3263 return -EOPNOTSUPP;
3264 }
3265
3266 /* configurations requiring offchan cannot work if no channel has been
3267 * specified
3268 */
3269 if (need_offchan && !params->chan)
3270 return -EINVAL;
3271
3272 mutex_lock(&local->mtx);
3273
3274 /* Check if the operating channel is the requested channel */
3275 if (!need_offchan) {
3276 struct ieee80211_chanctx_conf *chanctx_conf;
3277
3278 rcu_read_lock();
3279 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3280
3281 if (chanctx_conf) {
3282 need_offchan = params->chan &&
3283 (params->chan !=
3284 chanctx_conf->def.chan);
3285 } else if (!params->chan) {
3286 ret = -EINVAL;
3287 rcu_read_unlock();
3288 goto out_unlock;
3289 } else {
3290 need_offchan = true;
3291 }
3292 rcu_read_unlock();
3293 }
3294
3295 if (need_offchan && !params->offchan) {
3296 ret = -EBUSY;
3297 goto out_unlock;
3298 }
3299
3300 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3301 if (!skb) {
3302 ret = -ENOMEM;
3303 goto out_unlock;
3304 }
3305 skb_reserve(skb, local->hw.extra_tx_headroom);
3306
3307 memcpy(skb_put(skb, params->len), params->buf, params->len);
3308
3309 IEEE80211_SKB_CB(skb)->flags = flags;
3310
3311 skb->dev = sdata->dev;
3312
3313 if (!need_offchan) {
3314 *cookie = (unsigned long) skb;
3315 ieee80211_tx_skb(sdata, skb);
3316 ret = 0;
3317 goto out_unlock;
3318 }
3319
3320 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3321 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3322 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3323 IEEE80211_SKB_CB(skb)->hw_queue =
3324 local->hw.offchannel_tx_hw_queue;
3325
3326 /* This will handle all kinds of coalescing and immediate TX */
3327 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3328 params->wait, cookie, skb,
3329 IEEE80211_ROC_TYPE_MGMT_TX);
3330 if (ret)
3331 kfree_skb(skb);
3332 out_unlock:
3333 mutex_unlock(&local->mtx);
3334 return ret;
3335 }
3336
3337 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3338 struct wireless_dev *wdev,
3339 u64 cookie)
3340 {
3341 struct ieee80211_local *local = wiphy_priv(wiphy);
3342
3343 return ieee80211_cancel_roc(local, cookie, true);
3344 }
3345
3346 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3347 struct wireless_dev *wdev,
3348 u16 frame_type, bool reg)
3349 {
3350 struct ieee80211_local *local = wiphy_priv(wiphy);
3351
3352 switch (frame_type) {
3353 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3354 if (reg)
3355 local->probe_req_reg++;
3356 else
3357 local->probe_req_reg--;
3358
3359 if (!local->open_count)
3360 break;
3361
3362 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3363 break;
3364 default:
3365 break;
3366 }
3367 }
3368
3369 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3370 {
3371 struct ieee80211_local *local = wiphy_priv(wiphy);
3372
3373 if (local->started)
3374 return -EOPNOTSUPP;
3375
3376 return drv_set_antenna(local, tx_ant, rx_ant);
3377 }
3378
3379 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3380 {
3381 struct ieee80211_local *local = wiphy_priv(wiphy);
3382
3383 return drv_get_antenna(local, tx_ant, rx_ant);
3384 }
3385
3386 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3387 {
3388 struct ieee80211_local *local = wiphy_priv(wiphy);
3389
3390 return drv_set_ringparam(local, tx, rx);
3391 }
3392
3393 static void ieee80211_get_ringparam(struct wiphy *wiphy,
3394 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3395 {
3396 struct ieee80211_local *local = wiphy_priv(wiphy);
3397
3398 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3399 }
3400
3401 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3402 struct net_device *dev,
3403 struct cfg80211_gtk_rekey_data *data)
3404 {
3405 struct ieee80211_local *local = wiphy_priv(wiphy);
3406 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3407
3408 if (!local->ops->set_rekey_data)
3409 return -EOPNOTSUPP;
3410
3411 drv_set_rekey_data(local, sdata, data);
3412
3413 return 0;
3414 }
3415
3416 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3417 {
3418 u8 *pos = (void *)skb_put(skb, 7);
3419
3420 *pos++ = WLAN_EID_EXT_CAPABILITY;
3421 *pos++ = 5; /* len */
3422 *pos++ = 0x0;
3423 *pos++ = 0x0;
3424 *pos++ = 0x0;
3425 *pos++ = 0x0;
3426 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3427 }
3428
3429 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3430 {
3431 struct ieee80211_local *local = sdata->local;
3432 u16 capab;
3433
3434 capab = 0;
3435 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
3436 return capab;
3437
3438 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3439 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3440 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3441 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3442
3443 return capab;
3444 }
3445
3446 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3447 u8 *peer, u8 *bssid)
3448 {
3449 struct ieee80211_tdls_lnkie *lnkid;
3450
3451 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3452
3453 lnkid->ie_type = WLAN_EID_LINK_ID;
3454 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3455
3456 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3457 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3458 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3459 }
3460
3461 static int
3462 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3463 u8 *peer, u8 action_code, u8 dialog_token,
3464 u16 status_code, struct sk_buff *skb)
3465 {
3466 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3467 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3468 struct ieee80211_tdls_data *tf;
3469
3470 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3471
3472 memcpy(tf->da, peer, ETH_ALEN);
3473 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3474 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3475 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3476
3477 switch (action_code) {
3478 case WLAN_TDLS_SETUP_REQUEST:
3479 tf->category = WLAN_CATEGORY_TDLS;
3480 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3481
3482 skb_put(skb, sizeof(tf->u.setup_req));
3483 tf->u.setup_req.dialog_token = dialog_token;
3484 tf->u.setup_req.capability =
3485 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3486
3487 ieee80211_add_srates_ie(sdata, skb, false, band);
3488 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3489 ieee80211_tdls_add_ext_capab(skb);
3490 break;
3491 case WLAN_TDLS_SETUP_RESPONSE:
3492 tf->category = WLAN_CATEGORY_TDLS;
3493 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3494
3495 skb_put(skb, sizeof(tf->u.setup_resp));
3496 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3497 tf->u.setup_resp.dialog_token = dialog_token;
3498 tf->u.setup_resp.capability =
3499 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3500
3501 ieee80211_add_srates_ie(sdata, skb, false, band);
3502 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3503 ieee80211_tdls_add_ext_capab(skb);
3504 break;
3505 case WLAN_TDLS_SETUP_CONFIRM:
3506 tf->category = WLAN_CATEGORY_TDLS;
3507 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3508
3509 skb_put(skb, sizeof(tf->u.setup_cfm));
3510 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3511 tf->u.setup_cfm.dialog_token = dialog_token;
3512 break;
3513 case WLAN_TDLS_TEARDOWN:
3514 tf->category = WLAN_CATEGORY_TDLS;
3515 tf->action_code = WLAN_TDLS_TEARDOWN;
3516
3517 skb_put(skb, sizeof(tf->u.teardown));
3518 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3519 break;
3520 case WLAN_TDLS_DISCOVERY_REQUEST:
3521 tf->category = WLAN_CATEGORY_TDLS;
3522 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3523
3524 skb_put(skb, sizeof(tf->u.discover_req));
3525 tf->u.discover_req.dialog_token = dialog_token;
3526 break;
3527 default:
3528 return -EINVAL;
3529 }
3530
3531 return 0;
3532 }
3533
3534 static int
3535 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3536 u8 *peer, u8 action_code, u8 dialog_token,
3537 u16 status_code, struct sk_buff *skb)
3538 {
3539 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3540 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3541 struct ieee80211_mgmt *mgmt;
3542
3543 mgmt = (void *)skb_put(skb, 24);
3544 memset(mgmt, 0, 24);
3545 memcpy(mgmt->da, peer, ETH_ALEN);
3546 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3547 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3548
3549 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3550 IEEE80211_STYPE_ACTION);
3551
3552 switch (action_code) {
3553 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3554 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3555 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3556 mgmt->u.action.u.tdls_discover_resp.action_code =
3557 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3558 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3559 dialog_token;
3560 mgmt->u.action.u.tdls_discover_resp.capability =
3561 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3562
3563 ieee80211_add_srates_ie(sdata, skb, false, band);
3564 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3565 ieee80211_tdls_add_ext_capab(skb);
3566 break;
3567 default:
3568 return -EINVAL;
3569 }
3570
3571 return 0;
3572 }
3573
3574 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3575 u8 *peer, u8 action_code, u8 dialog_token,
3576 u16 status_code, const u8 *extra_ies,
3577 size_t extra_ies_len)
3578 {
3579 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3580 struct ieee80211_local *local = sdata->local;
3581 struct sk_buff *skb = NULL;
3582 bool send_direct;
3583 int ret;
3584
3585 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3586 return -ENOTSUPP;
3587
3588 /* make sure we are in managed mode, and associated */
3589 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3590 !sdata->u.mgd.associated)
3591 return -EINVAL;
3592
3593 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3594 action_code, peer);
3595
3596 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3597 max(sizeof(struct ieee80211_mgmt),
3598 sizeof(struct ieee80211_tdls_data)) +
3599 50 + /* supported rates */
3600 7 + /* ext capab */
3601 extra_ies_len +
3602 sizeof(struct ieee80211_tdls_lnkie));
3603 if (!skb)
3604 return -ENOMEM;
3605
3606 skb_reserve(skb, local->hw.extra_tx_headroom);
3607
3608 switch (action_code) {
3609 case WLAN_TDLS_SETUP_REQUEST:
3610 case WLAN_TDLS_SETUP_RESPONSE:
3611 case WLAN_TDLS_SETUP_CONFIRM:
3612 case WLAN_TDLS_TEARDOWN:
3613 case WLAN_TDLS_DISCOVERY_REQUEST:
3614 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3615 action_code, dialog_token,
3616 status_code, skb);
3617 send_direct = false;
3618 break;
3619 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3620 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3621 dialog_token, status_code,
3622 skb);
3623 send_direct = true;
3624 break;
3625 default:
3626 ret = -ENOTSUPP;
3627 break;
3628 }
3629
3630 if (ret < 0)
3631 goto fail;
3632
3633 if (extra_ies_len)
3634 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3635
3636 /* the TDLS link IE is always added last */
3637 switch (action_code) {
3638 case WLAN_TDLS_SETUP_REQUEST:
3639 case WLAN_TDLS_SETUP_CONFIRM:
3640 case WLAN_TDLS_TEARDOWN:
3641 case WLAN_TDLS_DISCOVERY_REQUEST:
3642 /* we are the initiator */
3643 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3644 sdata->u.mgd.bssid);
3645 break;
3646 case WLAN_TDLS_SETUP_RESPONSE:
3647 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3648 /* we are the responder */
3649 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3650 sdata->u.mgd.bssid);
3651 break;
3652 default:
3653 ret = -ENOTSUPP;
3654 goto fail;
3655 }
3656
3657 if (send_direct) {
3658 ieee80211_tx_skb(sdata, skb);
3659 return 0;
3660 }
3661
3662 /*
3663 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3664 * we should default to AC_VI.
3665 */
3666 switch (action_code) {
3667 case WLAN_TDLS_SETUP_REQUEST:
3668 case WLAN_TDLS_SETUP_RESPONSE:
3669 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3670 skb->priority = 2;
3671 break;
3672 default:
3673 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3674 skb->priority = 5;
3675 break;
3676 }
3677
3678 /* disable bottom halves when entering the Tx path */
3679 local_bh_disable();
3680 ret = ieee80211_subif_start_xmit(skb, dev);
3681 local_bh_enable();
3682
3683 return ret;
3684
3685 fail:
3686 dev_kfree_skb(skb);
3687 return ret;
3688 }
3689
3690 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3691 u8 *peer, enum nl80211_tdls_operation oper)
3692 {
3693 struct sta_info *sta;
3694 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3695
3696 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3697 return -ENOTSUPP;
3698
3699 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3700 return -EINVAL;
3701
3702 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3703
3704 switch (oper) {
3705 case NL80211_TDLS_ENABLE_LINK:
3706 rcu_read_lock();
3707 sta = sta_info_get(sdata, peer);
3708 if (!sta) {
3709 rcu_read_unlock();
3710 return -ENOLINK;
3711 }
3712
3713 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3714 rcu_read_unlock();
3715 break;
3716 case NL80211_TDLS_DISABLE_LINK:
3717 return sta_info_destroy_addr(sdata, peer);
3718 case NL80211_TDLS_TEARDOWN:
3719 case NL80211_TDLS_SETUP:
3720 case NL80211_TDLS_DISCOVERY_REQ:
3721 /* We don't support in-driver setup/teardown/discovery */
3722 return -ENOTSUPP;
3723 default:
3724 return -ENOTSUPP;
3725 }
3726
3727 return 0;
3728 }
3729
3730 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3731 const u8 *peer, u64 *cookie)
3732 {
3733 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3734 struct ieee80211_local *local = sdata->local;
3735 struct ieee80211_qos_hdr *nullfunc;
3736 struct sk_buff *skb;
3737 int size = sizeof(*nullfunc);
3738 __le16 fc;
3739 bool qos;
3740 struct ieee80211_tx_info *info;
3741 struct sta_info *sta;
3742 struct ieee80211_chanctx_conf *chanctx_conf;
3743 enum ieee80211_band band;
3744
3745 rcu_read_lock();
3746 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3747 if (WARN_ON(!chanctx_conf)) {
3748 rcu_read_unlock();
3749 return -EINVAL;
3750 }
3751 band = chanctx_conf->def.chan->band;
3752 sta = sta_info_get_bss(sdata, peer);
3753 if (sta) {
3754 qos = test_sta_flag(sta, WLAN_STA_WME);
3755 } else {
3756 rcu_read_unlock();
3757 return -ENOLINK;
3758 }
3759
3760 if (qos) {
3761 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3762 IEEE80211_STYPE_QOS_NULLFUNC |
3763 IEEE80211_FCTL_FROMDS);
3764 } else {
3765 size -= 2;
3766 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3767 IEEE80211_STYPE_NULLFUNC |
3768 IEEE80211_FCTL_FROMDS);
3769 }
3770
3771 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3772 if (!skb) {
3773 rcu_read_unlock();
3774 return -ENOMEM;
3775 }
3776
3777 skb->dev = dev;
3778
3779 skb_reserve(skb, local->hw.extra_tx_headroom);
3780
3781 nullfunc = (void *) skb_put(skb, size);
3782 nullfunc->frame_control = fc;
3783 nullfunc->duration_id = 0;
3784 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3785 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3786 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3787 nullfunc->seq_ctrl = 0;
3788
3789 info = IEEE80211_SKB_CB(skb);
3790
3791 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3792 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3793
3794 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3795 skb->priority = 7;
3796 if (qos)
3797 nullfunc->qos_ctrl = cpu_to_le16(7);
3798
3799 local_bh_disable();
3800 ieee80211_xmit(sdata, skb, band);
3801 local_bh_enable();
3802 rcu_read_unlock();
3803
3804 *cookie = (unsigned long) skb;
3805 return 0;
3806 }
3807
3808 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3809 struct wireless_dev *wdev,
3810 struct cfg80211_chan_def *chandef)
3811 {
3812 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3813 struct ieee80211_local *local = wiphy_priv(wiphy);
3814 struct ieee80211_chanctx_conf *chanctx_conf;
3815 int ret = -ENODATA;
3816
3817 rcu_read_lock();
3818 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3819 if (chanctx_conf) {
3820 *chandef = chanctx_conf->def;
3821 ret = 0;
3822 } else if (local->open_count > 0 &&
3823 local->open_count == local->monitors &&
3824 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3825 if (local->use_chanctx)
3826 *chandef = local->monitor_chandef;
3827 else
3828 *chandef = local->_oper_chandef;
3829 ret = 0;
3830 }
3831 rcu_read_unlock();
3832
3833 return ret;
3834 }
3835
3836 #ifdef CONFIG_PM
3837 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3838 {
3839 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3840 }
3841 #endif
3842
3843 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3844 struct net_device *dev,
3845 struct cfg80211_qos_map *qos_map)
3846 {
3847 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3848 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3849
3850 if (qos_map) {
3851 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3852 if (!new_qos_map)
3853 return -ENOMEM;
3854 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3855 } else {
3856 /* A NULL qos_map was passed to disable QoS mapping */
3857 new_qos_map = NULL;
3858 }
3859
3860 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3861 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3862 if (old_qos_map)
3863 kfree_rcu(old_qos_map, rcu_head);
3864
3865 return 0;
3866 }
3867
3868 struct cfg80211_ops mac80211_config_ops = {
3869 .add_virtual_intf = ieee80211_add_iface,
3870 .del_virtual_intf = ieee80211_del_iface,
3871 .change_virtual_intf = ieee80211_change_iface,
3872 .start_p2p_device = ieee80211_start_p2p_device,
3873 .stop_p2p_device = ieee80211_stop_p2p_device,
3874 .add_key = ieee80211_add_key,
3875 .del_key = ieee80211_del_key,
3876 .get_key = ieee80211_get_key,
3877 .set_default_key = ieee80211_config_default_key,
3878 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3879 .start_ap = ieee80211_start_ap,
3880 .change_beacon = ieee80211_change_beacon,
3881 .stop_ap = ieee80211_stop_ap,
3882 .add_station = ieee80211_add_station,
3883 .del_station = ieee80211_del_station,
3884 .change_station = ieee80211_change_station,
3885 .get_station = ieee80211_get_station,
3886 .dump_station = ieee80211_dump_station,
3887 .dump_survey = ieee80211_dump_survey,
3888 #ifdef CONFIG_MAC80211_MESH
3889 .add_mpath = ieee80211_add_mpath,
3890 .del_mpath = ieee80211_del_mpath,
3891 .change_mpath = ieee80211_change_mpath,
3892 .get_mpath = ieee80211_get_mpath,
3893 .dump_mpath = ieee80211_dump_mpath,
3894 .update_mesh_config = ieee80211_update_mesh_config,
3895 .get_mesh_config = ieee80211_get_mesh_config,
3896 .join_mesh = ieee80211_join_mesh,
3897 .leave_mesh = ieee80211_leave_mesh,
3898 #endif
3899 .change_bss = ieee80211_change_bss,
3900 .set_txq_params = ieee80211_set_txq_params,
3901 .set_monitor_channel = ieee80211_set_monitor_channel,
3902 .suspend = ieee80211_suspend,
3903 .resume = ieee80211_resume,
3904 .scan = ieee80211_scan,
3905 .sched_scan_start = ieee80211_sched_scan_start,
3906 .sched_scan_stop = ieee80211_sched_scan_stop,
3907 .auth = ieee80211_auth,
3908 .assoc = ieee80211_assoc,
3909 .deauth = ieee80211_deauth,
3910 .disassoc = ieee80211_disassoc,
3911 .join_ibss = ieee80211_join_ibss,
3912 .leave_ibss = ieee80211_leave_ibss,
3913 .set_mcast_rate = ieee80211_set_mcast_rate,
3914 .set_wiphy_params = ieee80211_set_wiphy_params,
3915 .set_tx_power = ieee80211_set_tx_power,
3916 .get_tx_power = ieee80211_get_tx_power,
3917 .set_wds_peer = ieee80211_set_wds_peer,
3918 .rfkill_poll = ieee80211_rfkill_poll,
3919 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3920 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3921 .set_power_mgmt = ieee80211_set_power_mgmt,
3922 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3923 .remain_on_channel = ieee80211_remain_on_channel,
3924 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3925 .mgmt_tx = ieee80211_mgmt_tx,
3926 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3927 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3928 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3929 .set_antenna = ieee80211_set_antenna,
3930 .get_antenna = ieee80211_get_antenna,
3931 .set_ringparam = ieee80211_set_ringparam,
3932 .get_ringparam = ieee80211_get_ringparam,
3933 .set_rekey_data = ieee80211_set_rekey_data,
3934 .tdls_oper = ieee80211_tdls_oper,
3935 .tdls_mgmt = ieee80211_tdls_mgmt,
3936 .probe_client = ieee80211_probe_client,
3937 .set_noack_map = ieee80211_set_noack_map,
3938 #ifdef CONFIG_PM
3939 .set_wakeup = ieee80211_set_wakeup,
3940 #endif
3941 .get_et_sset_count = ieee80211_get_et_sset_count,
3942 .get_et_stats = ieee80211_get_et_stats,
3943 .get_et_strings = ieee80211_get_et_strings,
3944 .get_channel = ieee80211_cfg_get_channel,
3945 .start_radar_detection = ieee80211_start_radar_detection,
3946 .channel_switch = ieee80211_channel_switch,
3947 .set_qos_map = ieee80211_set_qos_map,
3948 };
Linux with added FPC-III support