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Merge branch 'for-3.13/drivers' of git://git.kernel.dk/linux-block
[linux-2.6.git] / net / mac80211 / cfg.c
blob95667b088c5b73cd0e95e8c1753ed76acec9dca0
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 sta_info *sta = NULL;
137 struct ieee80211_key *key;
138 int err;
139
140 if (!ieee80211_sdata_running(sdata))
141 return -ENETDOWN;
142
143 /* reject WEP and TKIP keys if WEP failed to initialize */
144 switch (params->cipher) {
145 case WLAN_CIPHER_SUITE_WEP40:
146 case WLAN_CIPHER_SUITE_TKIP:
147 case WLAN_CIPHER_SUITE_WEP104:
148 if (IS_ERR(sdata->local->wep_tx_tfm))
149 return -EINVAL;
150 break;
151 default:
152 break;
153 }
154
155 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
156 params->key, params->seq_len, params->seq);
157 if (IS_ERR(key))
158 return PTR_ERR(key);
159
160 if (pairwise)
161 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
162
163 mutex_lock(&sdata->local->sta_mtx);
164
165 if (mac_addr) {
166 if (ieee80211_vif_is_mesh(&sdata->vif))
167 sta = sta_info_get(sdata, mac_addr);
168 else
169 sta = sta_info_get_bss(sdata, mac_addr);
170 /*
171 * The ASSOC test makes sure the driver is ready to
172 * receive the key. When wpa_supplicant has roamed
173 * using FT, it attempts to set the key before
174 * association has completed, this rejects that attempt
175 * so it will set the key again after assocation.
176 *
177 * TODO: accept the key if we have a station entry and
178 * add it to the device after the station.
179 */
180 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
181 ieee80211_key_free_unused(key);
182 err = -ENOENT;
183 goto out_unlock;
184 }
185 }
186
187 switch (sdata->vif.type) {
188 case NL80211_IFTYPE_STATION:
189 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
190 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
191 break;
192 case NL80211_IFTYPE_AP:
193 case NL80211_IFTYPE_AP_VLAN:
194 /* Keys without a station are used for TX only */
195 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
196 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
197 break;
198 case NL80211_IFTYPE_ADHOC:
199 /* no MFP (yet) */
200 break;
201 case NL80211_IFTYPE_MESH_POINT:
202 #ifdef CONFIG_MAC80211_MESH
203 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
204 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
205 break;
206 #endif
207 case NL80211_IFTYPE_WDS:
208 case NL80211_IFTYPE_MONITOR:
209 case NL80211_IFTYPE_P2P_DEVICE:
210 case NL80211_IFTYPE_UNSPECIFIED:
211 case NUM_NL80211_IFTYPES:
212 case NL80211_IFTYPE_P2P_CLIENT:
213 case NL80211_IFTYPE_P2P_GO:
214 /* shouldn't happen */
215 WARN_ON_ONCE(1);
216 break;
217 }
218
219 err = ieee80211_key_link(key, sdata, sta);
220
221 out_unlock:
222 mutex_unlock(&sdata->local->sta_mtx);
223
224 return err;
225 }
226
227 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
228 u8 key_idx, bool pairwise, const u8 *mac_addr)
229 {
230 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
231 struct ieee80211_local *local = sdata->local;
232 struct sta_info *sta;
233 struct ieee80211_key *key = NULL;
234 int ret;
235
236 mutex_lock(&local->sta_mtx);
237 mutex_lock(&local->key_mtx);
238
239 if (mac_addr) {
240 ret = -ENOENT;
241
242 sta = sta_info_get_bss(sdata, mac_addr);
243 if (!sta)
244 goto out_unlock;
245
246 if (pairwise)
247 key = key_mtx_dereference(local, sta->ptk);
248 else
249 key = key_mtx_dereference(local, sta->gtk[key_idx]);
250 } else
251 key = key_mtx_dereference(local, sdata->keys[key_idx]);
252
253 if (!key) {
254 ret = -ENOENT;
255 goto out_unlock;
256 }
257
258 ieee80211_key_free(key, true);
259
260 ret = 0;
261 out_unlock:
262 mutex_unlock(&local->key_mtx);
263 mutex_unlock(&local->sta_mtx);
264
265 return ret;
266 }
267
268 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
269 u8 key_idx, bool pairwise, const u8 *mac_addr,
270 void *cookie,
271 void (*callback)(void *cookie,
272 struct key_params *params))
273 {
274 struct ieee80211_sub_if_data *sdata;
275 struct sta_info *sta = NULL;
276 u8 seq[6] = {0};
277 struct key_params params;
278 struct ieee80211_key *key = NULL;
279 u64 pn64;
280 u32 iv32;
281 u16 iv16;
282 int err = -ENOENT;
283
284 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
285
286 rcu_read_lock();
287
288 if (mac_addr) {
289 sta = sta_info_get_bss(sdata, mac_addr);
290 if (!sta)
291 goto out;
292
293 if (pairwise)
294 key = rcu_dereference(sta->ptk);
295 else if (key_idx < NUM_DEFAULT_KEYS)
296 key = rcu_dereference(sta->gtk[key_idx]);
297 } else
298 key = rcu_dereference(sdata->keys[key_idx]);
299
300 if (!key)
301 goto out;
302
303 memset(&params, 0, sizeof(params));
304
305 params.cipher = key->conf.cipher;
306
307 switch (key->conf.cipher) {
308 case WLAN_CIPHER_SUITE_TKIP:
309 iv32 = key->u.tkip.tx.iv32;
310 iv16 = key->u.tkip.tx.iv16;
311
312 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
313 drv_get_tkip_seq(sdata->local,
314 key->conf.hw_key_idx,
315 &iv32, &iv16);
316
317 seq[0] = iv16 & 0xff;
318 seq[1] = (iv16 >> 8) & 0xff;
319 seq[2] = iv32 & 0xff;
320 seq[3] = (iv32 >> 8) & 0xff;
321 seq[4] = (iv32 >> 16) & 0xff;
322 seq[5] = (iv32 >> 24) & 0xff;
323 params.seq = seq;
324 params.seq_len = 6;
325 break;
326 case WLAN_CIPHER_SUITE_CCMP:
327 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
328 seq[0] = pn64;
329 seq[1] = pn64 >> 8;
330 seq[2] = pn64 >> 16;
331 seq[3] = pn64 >> 24;
332 seq[4] = pn64 >> 32;
333 seq[5] = pn64 >> 40;
334 params.seq = seq;
335 params.seq_len = 6;
336 break;
337 case WLAN_CIPHER_SUITE_AES_CMAC:
338 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
339 seq[0] = pn64;
340 seq[1] = pn64 >> 8;
341 seq[2] = pn64 >> 16;
342 seq[3] = pn64 >> 24;
343 seq[4] = pn64 >> 32;
344 seq[5] = pn64 >> 40;
345 params.seq = seq;
346 params.seq_len = 6;
347 break;
348 }
349
350 params.key = key->conf.key;
351 params.key_len = key->conf.keylen;
352
353 callback(cookie, &params);
354 err = 0;
355
356 out:
357 rcu_read_unlock();
358 return err;
359 }
360
361 static int ieee80211_config_default_key(struct wiphy *wiphy,
362 struct net_device *dev,
363 u8 key_idx, bool uni,
364 bool multi)
365 {
366 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
367
368 ieee80211_set_default_key(sdata, key_idx, uni, multi);
369
370 return 0;
371 }
372
373 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
374 struct net_device *dev,
375 u8 key_idx)
376 {
377 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
378
379 ieee80211_set_default_mgmt_key(sdata, key_idx);
380
381 return 0;
382 }
383
384 void sta_set_rate_info_tx(struct sta_info *sta,
385 const struct ieee80211_tx_rate *rate,
386 struct rate_info *rinfo)
387 {
388 rinfo->flags = 0;
389 if (rate->flags & IEEE80211_TX_RC_MCS) {
390 rinfo->flags |= RATE_INFO_FLAGS_MCS;
391 rinfo->mcs = rate->idx;
392 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
393 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
394 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
395 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
396 } else {
397 struct ieee80211_supported_band *sband;
398 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
399 u16 brate;
400
401 sband = sta->local->hw.wiphy->bands[
402 ieee80211_get_sdata_band(sta->sdata)];
403 brate = sband->bitrates[rate->idx].bitrate;
404 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
405 }
406 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
407 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
408 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
409 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
410 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
411 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
412 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
413 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
414 }
415
416 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
417 {
418 rinfo->flags = 0;
419
420 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
421 rinfo->flags |= RATE_INFO_FLAGS_MCS;
422 rinfo->mcs = sta->last_rx_rate_idx;
423 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
424 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
425 rinfo->nss = sta->last_rx_rate_vht_nss;
426 rinfo->mcs = sta->last_rx_rate_idx;
427 } else {
428 struct ieee80211_supported_band *sband;
429 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
430 u16 brate;
431
432 sband = sta->local->hw.wiphy->bands[
433 ieee80211_get_sdata_band(sta->sdata)];
434 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
435 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
436 }
437
438 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
439 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
440 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
441 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
442 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
443 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
444 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
445 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
446 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
447 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
448 }
449
450 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
451 {
452 struct ieee80211_sub_if_data *sdata = sta->sdata;
453 struct ieee80211_local *local = sdata->local;
454 struct timespec uptime;
455 u64 packets = 0;
456 int i, ac;
457
458 sinfo->generation = sdata->local->sta_generation;
459
460 sinfo->filled = STATION_INFO_INACTIVE_TIME |
461 STATION_INFO_RX_BYTES64 |
462 STATION_INFO_TX_BYTES64 |
463 STATION_INFO_RX_PACKETS |
464 STATION_INFO_TX_PACKETS |
465 STATION_INFO_TX_RETRIES |
466 STATION_INFO_TX_FAILED |
467 STATION_INFO_TX_BITRATE |
468 STATION_INFO_RX_BITRATE |
469 STATION_INFO_RX_DROP_MISC |
470 STATION_INFO_BSS_PARAM |
471 STATION_INFO_CONNECTED_TIME |
472 STATION_INFO_STA_FLAGS |
473 STATION_INFO_BEACON_LOSS_COUNT;
474
475 do_posix_clock_monotonic_gettime(&uptime);
476 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
477
478 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
479 sinfo->tx_bytes = 0;
480 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
481 sinfo->tx_bytes += sta->tx_bytes[ac];
482 packets += sta->tx_packets[ac];
483 }
484 sinfo->tx_packets = packets;
485 sinfo->rx_bytes = sta->rx_bytes;
486 sinfo->rx_packets = sta->rx_packets;
487 sinfo->tx_retries = sta->tx_retry_count;
488 sinfo->tx_failed = sta->tx_retry_failed;
489 sinfo->rx_dropped_misc = sta->rx_dropped;
490 sinfo->beacon_loss_count = sta->beacon_loss_count;
491
492 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
493 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
494 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
495 if (!local->ops->get_rssi ||
496 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
497 sinfo->signal = (s8)sta->last_signal;
498 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
499 }
500 if (sta->chains) {
501 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
502 STATION_INFO_CHAIN_SIGNAL_AVG;
503
504 sinfo->chains = sta->chains;
505 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
506 sinfo->chain_signal[i] = sta->chain_signal_last[i];
507 sinfo->chain_signal_avg[i] =
508 (s8) -ewma_read(&sta->chain_signal_avg[i]);
509 }
510 }
511
512 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
513 sta_set_rate_info_rx(sta, &sinfo->rxrate);
514
515 if (ieee80211_vif_is_mesh(&sdata->vif)) {
516 #ifdef CONFIG_MAC80211_MESH
517 sinfo->filled |= STATION_INFO_LLID |
518 STATION_INFO_PLID |
519 STATION_INFO_PLINK_STATE |
520 STATION_INFO_LOCAL_PM |
521 STATION_INFO_PEER_PM |
522 STATION_INFO_NONPEER_PM;
523
524 sinfo->llid = le16_to_cpu(sta->llid);
525 sinfo->plid = le16_to_cpu(sta->plid);
526 sinfo->plink_state = sta->plink_state;
527 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
528 sinfo->filled |= STATION_INFO_T_OFFSET;
529 sinfo->t_offset = sta->t_offset;
530 }
531 sinfo->local_pm = sta->local_pm;
532 sinfo->peer_pm = sta->peer_pm;
533 sinfo->nonpeer_pm = sta->nonpeer_pm;
534 #endif
535 }
536
537 sinfo->bss_param.flags = 0;
538 if (sdata->vif.bss_conf.use_cts_prot)
539 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
540 if (sdata->vif.bss_conf.use_short_preamble)
541 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
542 if (sdata->vif.bss_conf.use_short_slot)
543 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
544 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
545 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
546
547 sinfo->sta_flags.set = 0;
548 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
549 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
550 BIT(NL80211_STA_FLAG_WME) |
551 BIT(NL80211_STA_FLAG_MFP) |
552 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
553 BIT(NL80211_STA_FLAG_ASSOCIATED) |
554 BIT(NL80211_STA_FLAG_TDLS_PEER);
555 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
556 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
557 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
558 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
559 if (test_sta_flag(sta, WLAN_STA_WME))
560 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
561 if (test_sta_flag(sta, WLAN_STA_MFP))
562 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
563 if (test_sta_flag(sta, WLAN_STA_AUTH))
564 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
565 if (test_sta_flag(sta, WLAN_STA_ASSOC))
566 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
567 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
568 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
569 }
570
571 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
572 "rx_packets", "rx_bytes", "wep_weak_iv_count",
573 "rx_duplicates", "rx_fragments", "rx_dropped",
574 "tx_packets", "tx_bytes", "tx_fragments",
575 "tx_filtered", "tx_retry_failed", "tx_retries",
576 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
577 "channel", "noise", "ch_time", "ch_time_busy",
578 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
579 };
580 #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
581
582 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
583 struct net_device *dev,
584 int sset)
585 {
586 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
587 int rv = 0;
588
589 if (sset == ETH_SS_STATS)
590 rv += STA_STATS_LEN;
591
592 rv += drv_get_et_sset_count(sdata, sset);
593
594 if (rv == 0)
595 return -EOPNOTSUPP;
596 return rv;
597 }
598
599 static void ieee80211_get_et_stats(struct wiphy *wiphy,
600 struct net_device *dev,
601 struct ethtool_stats *stats,
602 u64 *data)
603 {
604 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
605 struct ieee80211_chanctx_conf *chanctx_conf;
606 struct ieee80211_channel *channel;
607 struct sta_info *sta;
608 struct ieee80211_local *local = sdata->local;
609 struct station_info sinfo;
610 struct survey_info survey;
611 int i, q;
612 #define STA_STATS_SURVEY_LEN 7
613
614 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
615
616 #define ADD_STA_STATS(sta) \
617 do { \
618 data[i++] += sta->rx_packets; \
619 data[i++] += sta->rx_bytes; \
620 data[i++] += sta->wep_weak_iv_count; \
621 data[i++] += sta->num_duplicates; \
622 data[i++] += sta->rx_fragments; \
623 data[i++] += sta->rx_dropped; \
624 \
625 data[i++] += sinfo.tx_packets; \
626 data[i++] += sinfo.tx_bytes; \
627 data[i++] += sta->tx_fragments; \
628 data[i++] += sta->tx_filtered_count; \
629 data[i++] += sta->tx_retry_failed; \
630 data[i++] += sta->tx_retry_count; \
631 data[i++] += sta->beacon_loss_count; \
632 } while (0)
633
634 /* For Managed stations, find the single station based on BSSID
635 * and use that. For interface types, iterate through all available
636 * stations and add stats for any station that is assigned to this
637 * network device.
638 */
639
640 mutex_lock(&local->sta_mtx);
641
642 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
643 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
644
645 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
646 goto do_survey;
647
648 sinfo.filled = 0;
649 sta_set_sinfo(sta, &sinfo);
650
651 i = 0;
652 ADD_STA_STATS(sta);
653
654 data[i++] = sta->sta_state;
655
656
657 if (sinfo.filled & STATION_INFO_TX_BITRATE)
658 data[i] = 100000 *
659 cfg80211_calculate_bitrate(&sinfo.txrate);
660 i++;
661 if (sinfo.filled & STATION_INFO_RX_BITRATE)
662 data[i] = 100000 *
663 cfg80211_calculate_bitrate(&sinfo.rxrate);
664 i++;
665
666 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
667 data[i] = (u8)sinfo.signal_avg;
668 i++;
669 } else {
670 list_for_each_entry(sta, &local->sta_list, list) {
671 /* Make sure this station belongs to the proper dev */
672 if (sta->sdata->dev != dev)
673 continue;
674
675 sinfo.filled = 0;
676 sta_set_sinfo(sta, &sinfo);
677 i = 0;
678 ADD_STA_STATS(sta);
679 }
680 }
681
682 do_survey:
683 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
684 /* Get survey stats for current channel */
685 survey.filled = 0;
686
687 rcu_read_lock();
688 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
689 if (chanctx_conf)
690 channel = chanctx_conf->def.chan;
691 else
692 channel = NULL;
693 rcu_read_unlock();
694
695 if (channel) {
696 q = 0;
697 do {
698 survey.filled = 0;
699 if (drv_get_survey(local, q, &survey) != 0) {
700 survey.filled = 0;
701 break;
702 }
703 q++;
704 } while (channel != survey.channel);
705 }
706
707 if (survey.filled)
708 data[i++] = survey.channel->center_freq;
709 else
710 data[i++] = 0;
711 if (survey.filled & SURVEY_INFO_NOISE_DBM)
712 data[i++] = (u8)survey.noise;
713 else
714 data[i++] = -1LL;
715 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
716 data[i++] = survey.channel_time;
717 else
718 data[i++] = -1LL;
719 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
720 data[i++] = survey.channel_time_busy;
721 else
722 data[i++] = -1LL;
723 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
724 data[i++] = survey.channel_time_ext_busy;
725 else
726 data[i++] = -1LL;
727 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
728 data[i++] = survey.channel_time_rx;
729 else
730 data[i++] = -1LL;
731 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
732 data[i++] = survey.channel_time_tx;
733 else
734 data[i++] = -1LL;
735
736 mutex_unlock(&local->sta_mtx);
737
738 if (WARN_ON(i != STA_STATS_LEN))
739 return;
740
741 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
742 }
743
744 static void ieee80211_get_et_strings(struct wiphy *wiphy,
745 struct net_device *dev,
746 u32 sset, u8 *data)
747 {
748 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
749 int sz_sta_stats = 0;
750
751 if (sset == ETH_SS_STATS) {
752 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
753 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
754 }
755 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
756 }
757
758 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
759 int idx, u8 *mac, struct station_info *sinfo)
760 {
761 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
762 struct ieee80211_local *local = sdata->local;
763 struct sta_info *sta;
764 int ret = -ENOENT;
765
766 mutex_lock(&local->sta_mtx);
767
768 sta = sta_info_get_by_idx(sdata, idx);
769 if (sta) {
770 ret = 0;
771 memcpy(mac, sta->sta.addr, ETH_ALEN);
772 sta_set_sinfo(sta, sinfo);
773 }
774
775 mutex_unlock(&local->sta_mtx);
776
777 return ret;
778 }
779
780 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
781 int idx, struct survey_info *survey)
782 {
783 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
784
785 return drv_get_survey(local, idx, survey);
786 }
787
788 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
789 u8 *mac, struct station_info *sinfo)
790 {
791 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
792 struct ieee80211_local *local = sdata->local;
793 struct sta_info *sta;
794 int ret = -ENOENT;
795
796 mutex_lock(&local->sta_mtx);
797
798 sta = sta_info_get_bss(sdata, mac);
799 if (sta) {
800 ret = 0;
801 sta_set_sinfo(sta, sinfo);
802 }
803
804 mutex_unlock(&local->sta_mtx);
805
806 return ret;
807 }
808
809 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
810 struct cfg80211_chan_def *chandef)
811 {
812 struct ieee80211_local *local = wiphy_priv(wiphy);
813 struct ieee80211_sub_if_data *sdata;
814 int ret = 0;
815
816 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
817 return 0;
818
819 mutex_lock(&local->iflist_mtx);
820 if (local->use_chanctx) {
821 sdata = rcu_dereference_protected(
822 local->monitor_sdata,
823 lockdep_is_held(&local->iflist_mtx));
824 if (sdata) {
825 ieee80211_vif_release_channel(sdata);
826 ret = ieee80211_vif_use_channel(sdata, chandef,
827 IEEE80211_CHANCTX_EXCLUSIVE);
828 }
829 } else if (local->open_count == local->monitors) {
830 local->_oper_chandef = *chandef;
831 ieee80211_hw_config(local, 0);
832 }
833
834 if (ret == 0)
835 local->monitor_chandef = *chandef;
836 mutex_unlock(&local->iflist_mtx);
837
838 return ret;
839 }
840
841 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
842 const u8 *resp, size_t resp_len)
843 {
844 struct probe_resp *new, *old;
845
846 if (!resp || !resp_len)
847 return 1;
848
849 old = rtnl_dereference(sdata->u.ap.probe_resp);
850
851 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
852 if (!new)
853 return -ENOMEM;
854
855 new->len = resp_len;
856 memcpy(new->data, resp, resp_len);
857
858 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
859 if (old)
860 kfree_rcu(old, rcu_head);
861
862 return 0;
863 }
864
865 int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
866 struct cfg80211_beacon_data *params)
867 {
868 struct beacon_data *new, *old;
869 int new_head_len, new_tail_len;
870 int size, err;
871 u32 changed = BSS_CHANGED_BEACON;
872
873 old = rtnl_dereference(sdata->u.ap.beacon);
874
875 /* Need to have a beacon head if we don't have one yet */
876 if (!params->head && !old)
877 return -EINVAL;
878
879 /* new or old head? */
880 if (params->head)
881 new_head_len = params->head_len;
882 else
883 new_head_len = old->head_len;
884
885 /* new or old tail? */
886 if (params->tail || !old)
887 /* params->tail_len will be zero for !params->tail */
888 new_tail_len = params->tail_len;
889 else
890 new_tail_len = old->tail_len;
891
892 size = sizeof(*new) + new_head_len + new_tail_len;
893
894 new = kzalloc(size, GFP_KERNEL);
895 if (!new)
896 return -ENOMEM;
897
898 /* start filling the new info now */
899
900 /*
901 * pointers go into the block we allocated,
902 * memory is | beacon_data | head | tail |
903 */
904 new->head = ((u8 *) new) + sizeof(*new);
905 new->tail = new->head + new_head_len;
906 new->head_len = new_head_len;
907 new->tail_len = new_tail_len;
908
909 /* copy in head */
910 if (params->head)
911 memcpy(new->head, params->head, new_head_len);
912 else
913 memcpy(new->head, old->head, new_head_len);
914
915 /* copy in optional tail */
916 if (params->tail)
917 memcpy(new->tail, params->tail, new_tail_len);
918 else
919 if (old)
920 memcpy(new->tail, old->tail, new_tail_len);
921
922 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
923 params->probe_resp_len);
924 if (err < 0)
925 return err;
926 if (err == 0)
927 changed |= BSS_CHANGED_AP_PROBE_RESP;
928
929 rcu_assign_pointer(sdata->u.ap.beacon, new);
930
931 if (old)
932 kfree_rcu(old, rcu_head);
933
934 return changed;
935 }
936
937 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
938 struct cfg80211_ap_settings *params)
939 {
940 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
941 struct beacon_data *old;
942 struct ieee80211_sub_if_data *vlan;
943 u32 changed = BSS_CHANGED_BEACON_INT |
944 BSS_CHANGED_BEACON_ENABLED |
945 BSS_CHANGED_BEACON |
946 BSS_CHANGED_SSID |
947 BSS_CHANGED_P2P_PS;
948 int err;
949
950 old = rtnl_dereference(sdata->u.ap.beacon);
951 if (old)
952 return -EALREADY;
953
954 /* TODO: make hostapd tell us what it wants */
955 sdata->smps_mode = IEEE80211_SMPS_OFF;
956 sdata->needed_rx_chains = sdata->local->rx_chains;
957 sdata->radar_required = params->radar_required;
958
959 err = ieee80211_vif_use_channel(sdata, &params->chandef,
960 IEEE80211_CHANCTX_SHARED);
961 if (err)
962 return err;
963 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
964
965 /*
966 * Apply control port protocol, this allows us to
967 * not encrypt dynamic WEP control frames.
968 */
969 sdata->control_port_protocol = params->crypto.control_port_ethertype;
970 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
971 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
972 vlan->control_port_protocol =
973 params->crypto.control_port_ethertype;
974 vlan->control_port_no_encrypt =
975 params->crypto.control_port_no_encrypt;
976 }
977
978 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
979 sdata->vif.bss_conf.dtim_period = params->dtim_period;
980 sdata->vif.bss_conf.enable_beacon = true;
981
982 sdata->vif.bss_conf.ssid_len = params->ssid_len;
983 if (params->ssid_len)
984 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
985 params->ssid_len);
986 sdata->vif.bss_conf.hidden_ssid =
987 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
988
989 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
990 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
991 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
992 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
993 if (params->p2p_opp_ps)
994 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
995 IEEE80211_P2P_OPPPS_ENABLE_BIT;
996
997 err = ieee80211_assign_beacon(sdata, &params->beacon);
998 if (err < 0)
999 return err;
1000 changed |= err;
1001
1002 err = drv_start_ap(sdata->local, sdata);
1003 if (err) {
1004 old = rtnl_dereference(sdata->u.ap.beacon);
1005 if (old)
1006 kfree_rcu(old, rcu_head);
1007 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1008 return err;
1009 }
1010
1011 ieee80211_bss_info_change_notify(sdata, changed);
1012
1013 netif_carrier_on(dev);
1014 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1015 netif_carrier_on(vlan->dev);
1016
1017 return 0;
1018 }
1019
1020 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1021 struct cfg80211_beacon_data *params)
1022 {
1023 struct ieee80211_sub_if_data *sdata;
1024 struct beacon_data *old;
1025 int err;
1026
1027 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1028
1029 /* don't allow changing the beacon while CSA is in place - offset
1030 * of channel switch counter may change
1031 */
1032 if (sdata->vif.csa_active)
1033 return -EBUSY;
1034
1035 old = rtnl_dereference(sdata->u.ap.beacon);
1036 if (!old)
1037 return -ENOENT;
1038
1039 err = ieee80211_assign_beacon(sdata, params);
1040 if (err < 0)
1041 return err;
1042 ieee80211_bss_info_change_notify(sdata, err);
1043 return 0;
1044 }
1045
1046 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1047 {
1048 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1049 struct ieee80211_sub_if_data *vlan;
1050 struct ieee80211_local *local = sdata->local;
1051 struct beacon_data *old_beacon;
1052 struct probe_resp *old_probe_resp;
1053
1054 old_beacon = rtnl_dereference(sdata->u.ap.beacon);
1055 if (!old_beacon)
1056 return -ENOENT;
1057 old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp);
1058
1059 /* abort any running channel switch */
1060 sdata->vif.csa_active = false;
1061 cancel_work_sync(&sdata->csa_finalize_work);
1062 cancel_work_sync(&sdata->u.ap.request_smps_work);
1063
1064 /* turn off carrier for this interface and dependent VLANs */
1065 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1066 netif_carrier_off(vlan->dev);
1067 netif_carrier_off(dev);
1068
1069 /* remove beacon and probe response */
1070 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1071 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1072 kfree_rcu(old_beacon, rcu_head);
1073 if (old_probe_resp)
1074 kfree_rcu(old_probe_resp, rcu_head);
1075
1076 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1077 sta_info_flush_defer(vlan);
1078 sta_info_flush_defer(sdata);
1079 synchronize_net();
1080 rcu_barrier();
1081 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1082 sta_info_flush_cleanup(vlan);
1083 ieee80211_free_keys(vlan);
1084 }
1085 sta_info_flush_cleanup(sdata);
1086 ieee80211_free_keys(sdata);
1087
1088 sdata->vif.bss_conf.enable_beacon = false;
1089 sdata->vif.bss_conf.ssid_len = 0;
1090 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1091 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1092
1093 if (sdata->wdev.cac_started) {
1094 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1095 cfg80211_cac_event(sdata->dev, NL80211_RADAR_CAC_ABORTED,
1096 GFP_KERNEL);
1097 }
1098
1099 drv_stop_ap(sdata->local, sdata);
1100
1101 /* free all potentially still buffered bcast frames */
1102 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1103 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1104
1105 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1106 ieee80211_vif_release_channel(sdata);
1107
1108 return 0;
1109 }
1110
1111 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1112 struct iapp_layer2_update {
1113 u8 da[ETH_ALEN]; /* broadcast */
1114 u8 sa[ETH_ALEN]; /* STA addr */
1115 __be16 len; /* 6 */
1116 u8 dsap; /* 0 */
1117 u8 ssap; /* 0 */
1118 u8 control;
1119 u8 xid_info[3];
1120 } __packed;
1121
1122 static void ieee80211_send_layer2_update(struct sta_info *sta)
1123 {
1124 struct iapp_layer2_update *msg;
1125 struct sk_buff *skb;
1126
1127 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1128 * bridge devices */
1129
1130 skb = dev_alloc_skb(sizeof(*msg));
1131 if (!skb)
1132 return;
1133 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1134
1135 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1136 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1137
1138 eth_broadcast_addr(msg->da);
1139 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1140 msg->len = htons(6);
1141 msg->dsap = 0;
1142 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1143 msg->control = 0xaf; /* XID response lsb.1111F101.
1144 * F=0 (no poll command; unsolicited frame) */
1145 msg->xid_info[0] = 0x81; /* XID format identifier */
1146 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1147 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1148
1149 skb->dev = sta->sdata->dev;
1150 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1151 memset(skb->cb, 0, sizeof(skb->cb));
1152 netif_rx_ni(skb);
1153 }
1154
1155 static int sta_apply_auth_flags(struct ieee80211_local *local,
1156 struct sta_info *sta,
1157 u32 mask, u32 set)
1158 {
1159 int ret;
1160
1161 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1162 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1163 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1164 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1165 if (ret)
1166 return ret;
1167 }
1168
1169 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1170 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1171 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1172 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1173 if (ret)
1174 return ret;
1175 }
1176
1177 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1178 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1179 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1180 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1181 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1182 else
1183 ret = 0;
1184 if (ret)
1185 return ret;
1186 }
1187
1188 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1189 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1190 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1191 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1192 if (ret)
1193 return ret;
1194 }
1195
1196 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1197 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1198 test_sta_flag(sta, WLAN_STA_AUTH)) {
1199 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1200 if (ret)
1201 return ret;
1202 }
1203
1204 return 0;
1205 }
1206
1207 static int sta_apply_parameters(struct ieee80211_local *local,
1208 struct sta_info *sta,
1209 struct station_parameters *params)
1210 {
1211 int ret = 0;
1212 struct ieee80211_supported_band *sband;
1213 struct ieee80211_sub_if_data *sdata = sta->sdata;
1214 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1215 u32 mask, set;
1216
1217 sband = local->hw.wiphy->bands[band];
1218
1219 mask = params->sta_flags_mask;
1220 set = params->sta_flags_set;
1221
1222 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1223 /*
1224 * In mesh mode, ASSOCIATED isn't part of the nl80211
1225 * API but must follow AUTHENTICATED for driver state.
1226 */
1227 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1228 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1229 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1230 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1231 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1232 /*
1233 * TDLS -- everything follows authorized, but
1234 * only becoming authorized is possible, not
1235 * going back
1236 */
1237 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1238 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1239 BIT(NL80211_STA_FLAG_ASSOCIATED);
1240 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1241 BIT(NL80211_STA_FLAG_ASSOCIATED);
1242 }
1243 }
1244
1245 ret = sta_apply_auth_flags(local, sta, mask, set);
1246 if (ret)
1247 return ret;
1248
1249 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1250 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1251 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1252 else
1253 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1254 }
1255
1256 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1257 if (set & BIT(NL80211_STA_FLAG_WME)) {
1258 set_sta_flag(sta, WLAN_STA_WME);
1259 sta->sta.wme = true;
1260 } else {
1261 clear_sta_flag(sta, WLAN_STA_WME);
1262 sta->sta.wme = false;
1263 }
1264 }
1265
1266 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1267 if (set & BIT(NL80211_STA_FLAG_MFP))
1268 set_sta_flag(sta, WLAN_STA_MFP);
1269 else
1270 clear_sta_flag(sta, WLAN_STA_MFP);
1271 }
1272
1273 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1274 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1275 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1276 else
1277 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1278 }
1279
1280 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1281 sta->sta.uapsd_queues = params->uapsd_queues;
1282 sta->sta.max_sp = params->max_sp;
1283 }
1284
1285 /*
1286 * cfg80211 validates this (1-2007) and allows setting the AID
1287 * only when creating a new station entry
1288 */
1289 if (params->aid)
1290 sta->sta.aid = params->aid;
1291
1292 /*
1293 * Some of the following updates would be racy if called on an
1294 * existing station, via ieee80211_change_station(). However,
1295 * all such changes are rejected by cfg80211 except for updates
1296 * changing the supported rates on an existing but not yet used
1297 * TDLS peer.
1298 */
1299
1300 if (params->listen_interval >= 0)
1301 sta->listen_interval = params->listen_interval;
1302
1303 if (params->supported_rates) {
1304 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1305 sband, params->supported_rates,
1306 params->supported_rates_len,
1307 &sta->sta.supp_rates[band]);
1308 }
1309
1310 if (params->ht_capa)
1311 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1312 params->ht_capa, sta);
1313
1314 if (params->vht_capa)
1315 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1316 params->vht_capa, sta);
1317
1318 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1319 #ifdef CONFIG_MAC80211_MESH
1320 u32 changed = 0;
1321
1322 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1323 switch (params->plink_state) {
1324 case NL80211_PLINK_ESTAB:
1325 if (sta->plink_state != NL80211_PLINK_ESTAB)
1326 changed = mesh_plink_inc_estab_count(
1327 sdata);
1328 sta->plink_state = params->plink_state;
1329
1330 ieee80211_mps_sta_status_update(sta);
1331 changed |= ieee80211_mps_set_sta_local_pm(sta,
1332 sdata->u.mesh.mshcfg.power_mode);
1333 break;
1334 case NL80211_PLINK_LISTEN:
1335 case NL80211_PLINK_BLOCKED:
1336 case NL80211_PLINK_OPN_SNT:
1337 case NL80211_PLINK_OPN_RCVD:
1338 case NL80211_PLINK_CNF_RCVD:
1339 case NL80211_PLINK_HOLDING:
1340 if (sta->plink_state == NL80211_PLINK_ESTAB)
1341 changed = mesh_plink_dec_estab_count(
1342 sdata);
1343 sta->plink_state = params->plink_state;
1344
1345 ieee80211_mps_sta_status_update(sta);
1346 changed |= ieee80211_mps_set_sta_local_pm(sta,
1347 NL80211_MESH_POWER_UNKNOWN);
1348 break;
1349 default:
1350 /* nothing */
1351 break;
1352 }
1353 }
1354
1355 switch (params->plink_action) {
1356 case NL80211_PLINK_ACTION_NO_ACTION:
1357 /* nothing */
1358 break;
1359 case NL80211_PLINK_ACTION_OPEN:
1360 changed |= mesh_plink_open(sta);
1361 break;
1362 case NL80211_PLINK_ACTION_BLOCK:
1363 changed |= mesh_plink_block(sta);
1364 break;
1365 }
1366
1367 if (params->local_pm)
1368 changed |=
1369 ieee80211_mps_set_sta_local_pm(sta,
1370 params->local_pm);
1371 ieee80211_bss_info_change_notify(sdata, changed);
1372 #endif
1373 }
1374
1375 return 0;
1376 }
1377
1378 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1379 u8 *mac, struct station_parameters *params)
1380 {
1381 struct ieee80211_local *local = wiphy_priv(wiphy);
1382 struct sta_info *sta;
1383 struct ieee80211_sub_if_data *sdata;
1384 int err;
1385 int layer2_update;
1386
1387 if (params->vlan) {
1388 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1389
1390 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1391 sdata->vif.type != NL80211_IFTYPE_AP)
1392 return -EINVAL;
1393 } else
1394 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1395
1396 if (ether_addr_equal(mac, sdata->vif.addr))
1397 return -EINVAL;
1398
1399 if (is_multicast_ether_addr(mac))
1400 return -EINVAL;
1401
1402 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1403 if (!sta)
1404 return -ENOMEM;
1405
1406 /*
1407 * defaults -- if userspace wants something else we'll
1408 * change it accordingly in sta_apply_parameters()
1409 */
1410 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1411 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1412 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1413 }
1414
1415 err = sta_apply_parameters(local, sta, params);
1416 if (err) {
1417 sta_info_free(local, sta);
1418 return err;
1419 }
1420
1421 /*
1422 * for TDLS, rate control should be initialized only when
1423 * rates are known and station is marked authorized
1424 */
1425 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1426 rate_control_rate_init(sta);
1427
1428 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1429 sdata->vif.type == NL80211_IFTYPE_AP;
1430
1431 err = sta_info_insert_rcu(sta);
1432 if (err) {
1433 rcu_read_unlock();
1434 return err;
1435 }
1436
1437 if (layer2_update)
1438 ieee80211_send_layer2_update(sta);
1439
1440 rcu_read_unlock();
1441
1442 return 0;
1443 }
1444
1445 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1446 u8 *mac)
1447 {
1448 struct ieee80211_sub_if_data *sdata;
1449
1450 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1451
1452 if (mac)
1453 return sta_info_destroy_addr_bss(sdata, mac);
1454
1455 sta_info_flush(sdata);
1456 return 0;
1457 }
1458
1459 static int ieee80211_change_station(struct wiphy *wiphy,
1460 struct net_device *dev, u8 *mac,
1461 struct station_parameters *params)
1462 {
1463 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1464 struct ieee80211_local *local = wiphy_priv(wiphy);
1465 struct sta_info *sta;
1466 struct ieee80211_sub_if_data *vlansdata;
1467 enum cfg80211_station_type statype;
1468 int err;
1469
1470 mutex_lock(&local->sta_mtx);
1471
1472 sta = sta_info_get_bss(sdata, mac);
1473 if (!sta) {
1474 err = -ENOENT;
1475 goto out_err;
1476 }
1477
1478 switch (sdata->vif.type) {
1479 case NL80211_IFTYPE_MESH_POINT:
1480 if (sdata->u.mesh.user_mpm)
1481 statype = CFG80211_STA_MESH_PEER_USER;
1482 else
1483 statype = CFG80211_STA_MESH_PEER_KERNEL;
1484 break;
1485 case NL80211_IFTYPE_ADHOC:
1486 statype = CFG80211_STA_IBSS;
1487 break;
1488 case NL80211_IFTYPE_STATION:
1489 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1490 statype = CFG80211_STA_AP_STA;
1491 break;
1492 }
1493 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1494 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1495 else
1496 statype = CFG80211_STA_TDLS_PEER_SETUP;
1497 break;
1498 case NL80211_IFTYPE_AP:
1499 case NL80211_IFTYPE_AP_VLAN:
1500 statype = CFG80211_STA_AP_CLIENT;
1501 break;
1502 default:
1503 err = -EOPNOTSUPP;
1504 goto out_err;
1505 }
1506
1507 err = cfg80211_check_station_change(wiphy, params, statype);
1508 if (err)
1509 goto out_err;
1510
1511 if (params->vlan && params->vlan != sta->sdata->dev) {
1512 bool prev_4addr = false;
1513 bool new_4addr = false;
1514
1515 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1516
1517 if (params->vlan->ieee80211_ptr->use_4addr) {
1518 if (vlansdata->u.vlan.sta) {
1519 err = -EBUSY;
1520 goto out_err;
1521 }
1522
1523 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1524 new_4addr = true;
1525 }
1526
1527 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1528 sta->sdata->u.vlan.sta) {
1529 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1530 prev_4addr = true;
1531 }
1532
1533 sta->sdata = vlansdata;
1534
1535 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1536 prev_4addr != new_4addr) {
1537 if (new_4addr)
1538 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1539 else
1540 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1541 }
1542
1543 ieee80211_send_layer2_update(sta);
1544 }
1545
1546 err = sta_apply_parameters(local, sta, params);
1547 if (err)
1548 goto out_err;
1549
1550 /* When peer becomes authorized, init rate control as well */
1551 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1552 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1553 rate_control_rate_init(sta);
1554
1555 mutex_unlock(&local->sta_mtx);
1556
1557 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1558 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1559 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1560 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1561 sta_info_tx_streams(sta) != 1) {
1562 ht_dbg(sta->sdata,
1563 "%pM just authorized and MIMO capable - update SMPS\n",
1564 sta->sta.addr);
1565 ieee80211_send_smps_action(sta->sdata,
1566 sta->sdata->bss->req_smps,
1567 sta->sta.addr,
1568 sta->sdata->vif.bss_conf.bssid);
1569 }
1570
1571 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1572 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1573 ieee80211_recalc_ps(local, -1);
1574 ieee80211_recalc_ps_vif(sdata);
1575 }
1576
1577 return 0;
1578 out_err:
1579 mutex_unlock(&local->sta_mtx);
1580 return err;
1581 }
1582
1583 #ifdef CONFIG_MAC80211_MESH
1584 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1585 u8 *dst, u8 *next_hop)
1586 {
1587 struct ieee80211_sub_if_data *sdata;
1588 struct mesh_path *mpath;
1589 struct sta_info *sta;
1590
1591 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1592
1593 rcu_read_lock();
1594 sta = sta_info_get(sdata, next_hop);
1595 if (!sta) {
1596 rcu_read_unlock();
1597 return -ENOENT;
1598 }
1599
1600 mpath = mesh_path_add(sdata, dst);
1601 if (IS_ERR(mpath)) {
1602 rcu_read_unlock();
1603 return PTR_ERR(mpath);
1604 }
1605
1606 mesh_path_fix_nexthop(mpath, sta);
1607
1608 rcu_read_unlock();
1609 return 0;
1610 }
1611
1612 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1613 u8 *dst)
1614 {
1615 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1616
1617 if (dst)
1618 return mesh_path_del(sdata, dst);
1619
1620 mesh_path_flush_by_iface(sdata);
1621 return 0;
1622 }
1623
1624 static int ieee80211_change_mpath(struct wiphy *wiphy,
1625 struct net_device *dev,
1626 u8 *dst, u8 *next_hop)
1627 {
1628 struct ieee80211_sub_if_data *sdata;
1629 struct mesh_path *mpath;
1630 struct sta_info *sta;
1631
1632 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1633
1634 rcu_read_lock();
1635
1636 sta = sta_info_get(sdata, next_hop);
1637 if (!sta) {
1638 rcu_read_unlock();
1639 return -ENOENT;
1640 }
1641
1642 mpath = mesh_path_lookup(sdata, dst);
1643 if (!mpath) {
1644 rcu_read_unlock();
1645 return -ENOENT;
1646 }
1647
1648 mesh_path_fix_nexthop(mpath, sta);
1649
1650 rcu_read_unlock();
1651 return 0;
1652 }
1653
1654 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1655 struct mpath_info *pinfo)
1656 {
1657 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1658
1659 if (next_hop_sta)
1660 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1661 else
1662 memset(next_hop, 0, ETH_ALEN);
1663
1664 memset(pinfo, 0, sizeof(*pinfo));
1665
1666 pinfo->generation = mesh_paths_generation;
1667
1668 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1669 MPATH_INFO_SN |
1670 MPATH_INFO_METRIC |
1671 MPATH_INFO_EXPTIME |
1672 MPATH_INFO_DISCOVERY_TIMEOUT |
1673 MPATH_INFO_DISCOVERY_RETRIES |
1674 MPATH_INFO_FLAGS;
1675
1676 pinfo->frame_qlen = mpath->frame_queue.qlen;
1677 pinfo->sn = mpath->sn;
1678 pinfo->metric = mpath->metric;
1679 if (time_before(jiffies, mpath->exp_time))
1680 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1681 pinfo->discovery_timeout =
1682 jiffies_to_msecs(mpath->discovery_timeout);
1683 pinfo->discovery_retries = mpath->discovery_retries;
1684 if (mpath->flags & MESH_PATH_ACTIVE)
1685 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1686 if (mpath->flags & MESH_PATH_RESOLVING)
1687 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1688 if (mpath->flags & MESH_PATH_SN_VALID)
1689 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1690 if (mpath->flags & MESH_PATH_FIXED)
1691 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1692 if (mpath->flags & MESH_PATH_RESOLVED)
1693 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1694 }
1695
1696 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1697 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1698
1699 {
1700 struct ieee80211_sub_if_data *sdata;
1701 struct mesh_path *mpath;
1702
1703 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1704
1705 rcu_read_lock();
1706 mpath = mesh_path_lookup(sdata, dst);
1707 if (!mpath) {
1708 rcu_read_unlock();
1709 return -ENOENT;
1710 }
1711 memcpy(dst, mpath->dst, ETH_ALEN);
1712 mpath_set_pinfo(mpath, next_hop, pinfo);
1713 rcu_read_unlock();
1714 return 0;
1715 }
1716
1717 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1718 int idx, u8 *dst, u8 *next_hop,
1719 struct mpath_info *pinfo)
1720 {
1721 struct ieee80211_sub_if_data *sdata;
1722 struct mesh_path *mpath;
1723
1724 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1725
1726 rcu_read_lock();
1727 mpath = mesh_path_lookup_by_idx(sdata, idx);
1728 if (!mpath) {
1729 rcu_read_unlock();
1730 return -ENOENT;
1731 }
1732 memcpy(dst, mpath->dst, ETH_ALEN);
1733 mpath_set_pinfo(mpath, next_hop, pinfo);
1734 rcu_read_unlock();
1735 return 0;
1736 }
1737
1738 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1739 struct net_device *dev,
1740 struct mesh_config *conf)
1741 {
1742 struct ieee80211_sub_if_data *sdata;
1743 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1744
1745 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1746 return 0;
1747 }
1748
1749 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1750 {
1751 return (mask >> (parm-1)) & 0x1;
1752 }
1753
1754 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1755 const struct mesh_setup *setup)
1756 {
1757 u8 *new_ie;
1758 const u8 *old_ie;
1759 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1760 struct ieee80211_sub_if_data, u.mesh);
1761
1762 /* allocate information elements */
1763 new_ie = NULL;
1764 old_ie = ifmsh->ie;
1765
1766 if (setup->ie_len) {
1767 new_ie = kmemdup(setup->ie, setup->ie_len,
1768 GFP_KERNEL);
1769 if (!new_ie)
1770 return -ENOMEM;
1771 }
1772 ifmsh->ie_len = setup->ie_len;
1773 ifmsh->ie = new_ie;
1774 kfree(old_ie);
1775
1776 /* now copy the rest of the setup parameters */
1777 ifmsh->mesh_id_len = setup->mesh_id_len;
1778 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1779 ifmsh->mesh_sp_id = setup->sync_method;
1780 ifmsh->mesh_pp_id = setup->path_sel_proto;
1781 ifmsh->mesh_pm_id = setup->path_metric;
1782 ifmsh->user_mpm = setup->user_mpm;
1783 ifmsh->mesh_auth_id = setup->auth_id;
1784 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1785 if (setup->is_authenticated)
1786 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1787 if (setup->is_secure)
1788 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1789
1790 /* mcast rate setting in Mesh Node */
1791 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1792 sizeof(setup->mcast_rate));
1793 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1794
1795 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1796 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1797
1798 return 0;
1799 }
1800
1801 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1802 struct net_device *dev, u32 mask,
1803 const struct mesh_config *nconf)
1804 {
1805 struct mesh_config *conf;
1806 struct ieee80211_sub_if_data *sdata;
1807 struct ieee80211_if_mesh *ifmsh;
1808
1809 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1810 ifmsh = &sdata->u.mesh;
1811
1812 /* Set the config options which we are interested in setting */
1813 conf = &(sdata->u.mesh.mshcfg);
1814 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1815 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1816 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1817 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1818 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1819 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1820 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1821 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1822 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1823 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1824 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1825 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1826 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1827 conf->element_ttl = nconf->element_ttl;
1828 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1829 if (ifmsh->user_mpm)
1830 return -EBUSY;
1831 conf->auto_open_plinks = nconf->auto_open_plinks;
1832 }
1833 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1834 conf->dot11MeshNbrOffsetMaxNeighbor =
1835 nconf->dot11MeshNbrOffsetMaxNeighbor;
1836 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1837 conf->dot11MeshHWMPmaxPREQretries =
1838 nconf->dot11MeshHWMPmaxPREQretries;
1839 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1840 conf->path_refresh_time = nconf->path_refresh_time;
1841 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1842 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1843 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1844 conf->dot11MeshHWMPactivePathTimeout =
1845 nconf->dot11MeshHWMPactivePathTimeout;
1846 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1847 conf->dot11MeshHWMPpreqMinInterval =
1848 nconf->dot11MeshHWMPpreqMinInterval;
1849 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1850 conf->dot11MeshHWMPperrMinInterval =
1851 nconf->dot11MeshHWMPperrMinInterval;
1852 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1853 mask))
1854 conf->dot11MeshHWMPnetDiameterTraversalTime =
1855 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1856 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1857 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1858 ieee80211_mesh_root_setup(ifmsh);
1859 }
1860 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1861 /* our current gate announcement implementation rides on root
1862 * announcements, so require this ifmsh to also be a root node
1863 * */
1864 if (nconf->dot11MeshGateAnnouncementProtocol &&
1865 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1866 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1867 ieee80211_mesh_root_setup(ifmsh);
1868 }
1869 conf->dot11MeshGateAnnouncementProtocol =
1870 nconf->dot11MeshGateAnnouncementProtocol;
1871 }
1872 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1873 conf->dot11MeshHWMPRannInterval =
1874 nconf->dot11MeshHWMPRannInterval;
1875 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1876 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1877 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1878 /* our RSSI threshold implementation is supported only for
1879 * devices that report signal in dBm.
1880 */
1881 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1882 return -ENOTSUPP;
1883 conf->rssi_threshold = nconf->rssi_threshold;
1884 }
1885 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1886 conf->ht_opmode = nconf->ht_opmode;
1887 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1888 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1889 }
1890 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1891 conf->dot11MeshHWMPactivePathToRootTimeout =
1892 nconf->dot11MeshHWMPactivePathToRootTimeout;
1893 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1894 conf->dot11MeshHWMProotInterval =
1895 nconf->dot11MeshHWMProotInterval;
1896 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1897 conf->dot11MeshHWMPconfirmationInterval =
1898 nconf->dot11MeshHWMPconfirmationInterval;
1899 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1900 conf->power_mode = nconf->power_mode;
1901 ieee80211_mps_local_status_update(sdata);
1902 }
1903 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1904 conf->dot11MeshAwakeWindowDuration =
1905 nconf->dot11MeshAwakeWindowDuration;
1906 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1907 conf->plink_timeout = nconf->plink_timeout;
1908 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1909 return 0;
1910 }
1911
1912 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1913 const struct mesh_config *conf,
1914 const struct mesh_setup *setup)
1915 {
1916 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1917 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1918 int err;
1919
1920 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1921 err = copy_mesh_setup(ifmsh, setup);
1922 if (err)
1923 return err;
1924
1925 /* can mesh use other SMPS modes? */
1926 sdata->smps_mode = IEEE80211_SMPS_OFF;
1927 sdata->needed_rx_chains = sdata->local->rx_chains;
1928
1929 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1930 IEEE80211_CHANCTX_SHARED);
1931 if (err)
1932 return err;
1933
1934 return ieee80211_start_mesh(sdata);
1935 }
1936
1937 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1938 {
1939 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1940
1941 ieee80211_stop_mesh(sdata);
1942 ieee80211_vif_release_channel(sdata);
1943
1944 return 0;
1945 }
1946 #endif
1947
1948 static int ieee80211_change_bss(struct wiphy *wiphy,
1949 struct net_device *dev,
1950 struct bss_parameters *params)
1951 {
1952 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1953 enum ieee80211_band band;
1954 u32 changed = 0;
1955
1956 if (!rtnl_dereference(sdata->u.ap.beacon))
1957 return -ENOENT;
1958
1959 band = ieee80211_get_sdata_band(sdata);
1960
1961 if (params->use_cts_prot >= 0) {
1962 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1963 changed |= BSS_CHANGED_ERP_CTS_PROT;
1964 }
1965 if (params->use_short_preamble >= 0) {
1966 sdata->vif.bss_conf.use_short_preamble =
1967 params->use_short_preamble;
1968 changed |= BSS_CHANGED_ERP_PREAMBLE;
1969 }
1970
1971 if (!sdata->vif.bss_conf.use_short_slot &&
1972 band == IEEE80211_BAND_5GHZ) {
1973 sdata->vif.bss_conf.use_short_slot = true;
1974 changed |= BSS_CHANGED_ERP_SLOT;
1975 }
1976
1977 if (params->use_short_slot_time >= 0) {
1978 sdata->vif.bss_conf.use_short_slot =
1979 params->use_short_slot_time;
1980 changed |= BSS_CHANGED_ERP_SLOT;
1981 }
1982
1983 if (params->basic_rates) {
1984 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1985 wiphy->bands[band],
1986 params->basic_rates,
1987 params->basic_rates_len,
1988 &sdata->vif.bss_conf.basic_rates);
1989 changed |= BSS_CHANGED_BASIC_RATES;
1990 }
1991
1992 if (params->ap_isolate >= 0) {
1993 if (params->ap_isolate)
1994 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1995 else
1996 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1997 }
1998
1999 if (params->ht_opmode >= 0) {
2000 sdata->vif.bss_conf.ht_operation_mode =
2001 (u16) params->ht_opmode;
2002 changed |= BSS_CHANGED_HT;
2003 }
2004
2005 if (params->p2p_ctwindow >= 0) {
2006 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2007 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2008 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2009 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2010 changed |= BSS_CHANGED_P2P_PS;
2011 }
2012
2013 if (params->p2p_opp_ps > 0) {
2014 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2015 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2016 changed |= BSS_CHANGED_P2P_PS;
2017 } else if (params->p2p_opp_ps == 0) {
2018 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2019 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2020 changed |= BSS_CHANGED_P2P_PS;
2021 }
2022
2023 ieee80211_bss_info_change_notify(sdata, changed);
2024
2025 return 0;
2026 }
2027
2028 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2029 struct net_device *dev,
2030 struct ieee80211_txq_params *params)
2031 {
2032 struct ieee80211_local *local = wiphy_priv(wiphy);
2033 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2034 struct ieee80211_tx_queue_params p;
2035
2036 if (!local->ops->conf_tx)
2037 return -EOPNOTSUPP;
2038
2039 if (local->hw.queues < IEEE80211_NUM_ACS)
2040 return -EOPNOTSUPP;
2041
2042 memset(&p, 0, sizeof(p));
2043 p.aifs = params->aifs;
2044 p.cw_max = params->cwmax;
2045 p.cw_min = params->cwmin;
2046 p.txop = params->txop;
2047
2048 /*
2049 * Setting tx queue params disables u-apsd because it's only
2050 * called in master mode.
2051 */
2052 p.uapsd = false;
2053
2054 sdata->tx_conf[params->ac] = p;
2055 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2056 wiphy_debug(local->hw.wiphy,
2057 "failed to set TX queue parameters for AC %d\n",
2058 params->ac);
2059 return -EINVAL;
2060 }
2061
2062 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2063
2064 return 0;
2065 }
2066
2067 #ifdef CONFIG_PM
2068 static int ieee80211_suspend(struct wiphy *wiphy,
2069 struct cfg80211_wowlan *wowlan)
2070 {
2071 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2072 }
2073
2074 static int ieee80211_resume(struct wiphy *wiphy)
2075 {
2076 return __ieee80211_resume(wiphy_priv(wiphy));
2077 }
2078 #else
2079 #define ieee80211_suspend NULL
2080 #define ieee80211_resume NULL
2081 #endif
2082
2083 static int ieee80211_scan(struct wiphy *wiphy,
2084 struct cfg80211_scan_request *req)
2085 {
2086 struct ieee80211_sub_if_data *sdata;
2087
2088 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2089
2090 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2091 case NL80211_IFTYPE_STATION:
2092 case NL80211_IFTYPE_ADHOC:
2093 case NL80211_IFTYPE_MESH_POINT:
2094 case NL80211_IFTYPE_P2P_CLIENT:
2095 case NL80211_IFTYPE_P2P_DEVICE:
2096 break;
2097 case NL80211_IFTYPE_P2P_GO:
2098 if (sdata->local->ops->hw_scan)
2099 break;
2100 /*
2101 * FIXME: implement NoA while scanning in software,
2102 * for now fall through to allow scanning only when
2103 * beaconing hasn't been configured yet
2104 */
2105 case NL80211_IFTYPE_AP:
2106 /*
2107 * If the scan has been forced (and the driver supports
2108 * forcing), don't care about being beaconing already.
2109 * This will create problems to the attached stations (e.g. all
2110 * the frames sent while scanning on other channel will be
2111 * lost)
2112 */
2113 if (sdata->u.ap.beacon &&
2114 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2115 !(req->flags & NL80211_SCAN_FLAG_AP)))
2116 return -EOPNOTSUPP;
2117 break;
2118 default:
2119 return -EOPNOTSUPP;
2120 }
2121
2122 return ieee80211_request_scan(sdata, req);
2123 }
2124
2125 static int
2126 ieee80211_sched_scan_start(struct wiphy *wiphy,
2127 struct net_device *dev,
2128 struct cfg80211_sched_scan_request *req)
2129 {
2130 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2131
2132 if (!sdata->local->ops->sched_scan_start)
2133 return -EOPNOTSUPP;
2134
2135 return ieee80211_request_sched_scan_start(sdata, req);
2136 }
2137
2138 static int
2139 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2140 {
2141 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2142
2143 if (!sdata->local->ops->sched_scan_stop)
2144 return -EOPNOTSUPP;
2145
2146 return ieee80211_request_sched_scan_stop(sdata);
2147 }
2148
2149 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2150 struct cfg80211_auth_request *req)
2151 {
2152 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2153 }
2154
2155 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2156 struct cfg80211_assoc_request *req)
2157 {
2158 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2159 }
2160
2161 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2162 struct cfg80211_deauth_request *req)
2163 {
2164 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2165 }
2166
2167 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2168 struct cfg80211_disassoc_request *req)
2169 {
2170 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2171 }
2172
2173 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2174 struct cfg80211_ibss_params *params)
2175 {
2176 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2177 }
2178
2179 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2180 {
2181 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2182 }
2183
2184 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2185 int rate[IEEE80211_NUM_BANDS])
2186 {
2187 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2188
2189 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2190 sizeof(int) * IEEE80211_NUM_BANDS);
2191
2192 return 0;
2193 }
2194
2195 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2196 {
2197 struct ieee80211_local *local = wiphy_priv(wiphy);
2198 int err;
2199
2200 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2201 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2202
2203 if (err)
2204 return err;
2205 }
2206
2207 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2208 err = drv_set_coverage_class(local, wiphy->coverage_class);
2209
2210 if (err)
2211 return err;
2212 }
2213
2214 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2215 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2216
2217 if (err)
2218 return err;
2219 }
2220
2221 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2222 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2223 return -EINVAL;
2224 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2225 }
2226 if (changed & WIPHY_PARAM_RETRY_LONG) {
2227 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2228 return -EINVAL;
2229 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2230 }
2231 if (changed &
2232 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2233 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2234
2235 return 0;
2236 }
2237
2238 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2239 struct wireless_dev *wdev,
2240 enum nl80211_tx_power_setting type, int mbm)
2241 {
2242 struct ieee80211_local *local = wiphy_priv(wiphy);
2243 struct ieee80211_sub_if_data *sdata;
2244
2245 if (wdev) {
2246 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2247
2248 switch (type) {
2249 case NL80211_TX_POWER_AUTOMATIC:
2250 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2251 break;
2252 case NL80211_TX_POWER_LIMITED:
2253 case NL80211_TX_POWER_FIXED:
2254 if (mbm < 0 || (mbm % 100))
2255 return -EOPNOTSUPP;
2256 sdata->user_power_level = MBM_TO_DBM(mbm);
2257 break;
2258 }
2259
2260 ieee80211_recalc_txpower(sdata);
2261
2262 return 0;
2263 }
2264
2265 switch (type) {
2266 case NL80211_TX_POWER_AUTOMATIC:
2267 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2268 break;
2269 case NL80211_TX_POWER_LIMITED:
2270 case NL80211_TX_POWER_FIXED:
2271 if (mbm < 0 || (mbm % 100))
2272 return -EOPNOTSUPP;
2273 local->user_power_level = MBM_TO_DBM(mbm);
2274 break;
2275 }
2276
2277 mutex_lock(&local->iflist_mtx);
2278 list_for_each_entry(sdata, &local->interfaces, list)
2279 sdata->user_power_level = local->user_power_level;
2280 list_for_each_entry(sdata, &local->interfaces, list)
2281 ieee80211_recalc_txpower(sdata);
2282 mutex_unlock(&local->iflist_mtx);
2283
2284 return 0;
2285 }
2286
2287 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2288 struct wireless_dev *wdev,
2289 int *dbm)
2290 {
2291 struct ieee80211_local *local = wiphy_priv(wiphy);
2292 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2293
2294 if (!local->use_chanctx)
2295 *dbm = local->hw.conf.power_level;
2296 else
2297 *dbm = sdata->vif.bss_conf.txpower;
2298
2299 return 0;
2300 }
2301
2302 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2303 const u8 *addr)
2304 {
2305 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2306
2307 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2308
2309 return 0;
2310 }
2311
2312 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2313 {
2314 struct ieee80211_local *local = wiphy_priv(wiphy);
2315
2316 drv_rfkill_poll(local);
2317 }
2318
2319 #ifdef CONFIG_NL80211_TESTMODE
2320 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2321 struct wireless_dev *wdev,
2322 void *data, int len)
2323 {
2324 struct ieee80211_local *local = wiphy_priv(wiphy);
2325 struct ieee80211_vif *vif = NULL;
2326
2327 if (!local->ops->testmode_cmd)
2328 return -EOPNOTSUPP;
2329
2330 if (wdev) {
2331 struct ieee80211_sub_if_data *sdata;
2332
2333 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2334 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2335 vif = &sdata->vif;
2336 }
2337
2338 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2339 }
2340
2341 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2342 struct sk_buff *skb,
2343 struct netlink_callback *cb,
2344 void *data, int len)
2345 {
2346 struct ieee80211_local *local = wiphy_priv(wiphy);
2347
2348 if (!local->ops->testmode_dump)
2349 return -EOPNOTSUPP;
2350
2351 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2352 }
2353 #endif
2354
2355 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2356 enum ieee80211_smps_mode smps_mode)
2357 {
2358 struct sta_info *sta;
2359 enum ieee80211_smps_mode old_req;
2360 int i;
2361
2362 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2363 return -EINVAL;
2364
2365 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2366 return 0;
2367
2368 old_req = sdata->u.ap.req_smps;
2369 sdata->u.ap.req_smps = smps_mode;
2370
2371 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2372 if (old_req == smps_mode ||
2373 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2374 return 0;
2375
2376 /* If no associated stations, there's no need to do anything */
2377 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2378 sdata->smps_mode = smps_mode;
2379 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2380 return 0;
2381 }
2382
2383 ht_dbg(sdata,
2384 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2385 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2386
2387 mutex_lock(&sdata->local->sta_mtx);
2388 for (i = 0; i < STA_HASH_SIZE; i++) {
2389 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2390 lockdep_is_held(&sdata->local->sta_mtx));
2391 sta;
2392 sta = rcu_dereference_protected(sta->hnext,
2393 lockdep_is_held(&sdata->local->sta_mtx))) {
2394 /*
2395 * Only stations associated to our AP and
2396 * associated VLANs
2397 */
2398 if (sta->sdata->bss != &sdata->u.ap)
2399 continue;
2400
2401 /* This station doesn't support MIMO - skip it */
2402 if (sta_info_tx_streams(sta) == 1)
2403 continue;
2404
2405 /*
2406 * Don't wake up a STA just to send the action frame
2407 * unless we are getting more restrictive.
2408 */
2409 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2410 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2411 smps_mode)) {
2412 ht_dbg(sdata,
2413 "Won't send SMPS to sleeping STA %pM\n",
2414 sta->sta.addr);
2415 continue;
2416 }
2417
2418 /*
2419 * If the STA is not authorized, wait until it gets
2420 * authorized and the action frame will be sent then.
2421 */
2422 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2423 continue;
2424
2425 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2426 ieee80211_send_smps_action(sdata, smps_mode,
2427 sta->sta.addr,
2428 sdata->vif.bss_conf.bssid);
2429 }
2430 }
2431 mutex_unlock(&sdata->local->sta_mtx);
2432
2433 sdata->smps_mode = smps_mode;
2434 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2435
2436 return 0;
2437 }
2438
2439 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2440 enum ieee80211_smps_mode smps_mode)
2441 {
2442 const u8 *ap;
2443 enum ieee80211_smps_mode old_req;
2444 int err;
2445
2446 lockdep_assert_held(&sdata->wdev.mtx);
2447
2448 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2449 return -EINVAL;
2450
2451 old_req = sdata->u.mgd.req_smps;
2452 sdata->u.mgd.req_smps = smps_mode;
2453
2454 if (old_req == smps_mode &&
2455 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2456 return 0;
2457
2458 /*
2459 * If not associated, or current association is not an HT
2460 * association, there's no need to do anything, just store
2461 * the new value until we associate.
2462 */
2463 if (!sdata->u.mgd.associated ||
2464 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2465 return 0;
2466
2467 ap = sdata->u.mgd.associated->bssid;
2468
2469 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2470 if (sdata->u.mgd.powersave)
2471 smps_mode = IEEE80211_SMPS_DYNAMIC;
2472 else
2473 smps_mode = IEEE80211_SMPS_OFF;
2474 }
2475
2476 /* send SM PS frame to AP */
2477 err = ieee80211_send_smps_action(sdata, smps_mode,
2478 ap, ap);
2479 if (err)
2480 sdata->u.mgd.req_smps = old_req;
2481
2482 return err;
2483 }
2484
2485 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2486 bool enabled, int timeout)
2487 {
2488 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2489 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2490
2491 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
2492 sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
2493 return -EOPNOTSUPP;
2494
2495 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2496 return -EOPNOTSUPP;
2497
2498 if (enabled == sdata->u.mgd.powersave &&
2499 timeout == local->dynamic_ps_forced_timeout)
2500 return 0;
2501
2502 sdata->u.mgd.powersave = enabled;
2503 local->dynamic_ps_forced_timeout = timeout;
2504
2505 /* no change, but if automatic follow powersave */
2506 sdata_lock(sdata);
2507 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2508 sdata_unlock(sdata);
2509
2510 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2511 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2512
2513 ieee80211_recalc_ps(local, -1);
2514 ieee80211_recalc_ps_vif(sdata);
2515
2516 return 0;
2517 }
2518
2519 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2520 struct net_device *dev,
2521 s32 rssi_thold, u32 rssi_hyst)
2522 {
2523 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2524 struct ieee80211_vif *vif = &sdata->vif;
2525 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2526
2527 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2528 rssi_hyst == bss_conf->cqm_rssi_hyst)
2529 return 0;
2530
2531 bss_conf->cqm_rssi_thold = rssi_thold;
2532 bss_conf->cqm_rssi_hyst = rssi_hyst;
2533
2534 /* tell the driver upon association, unless already associated */
2535 if (sdata->u.mgd.associated &&
2536 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2537 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2538
2539 return 0;
2540 }
2541
2542 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2543 struct net_device *dev,
2544 const u8 *addr,
2545 const struct cfg80211_bitrate_mask *mask)
2546 {
2547 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2548 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2549 int i, ret;
2550
2551 if (!ieee80211_sdata_running(sdata))
2552 return -ENETDOWN;
2553
2554 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2555 ret = drv_set_bitrate_mask(local, sdata, mask);
2556 if (ret)
2557 return ret;
2558 }
2559
2560 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2561 struct ieee80211_supported_band *sband = wiphy->bands[i];
2562 int j;
2563
2564 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2565 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
2566 sizeof(mask->control[i].mcs));
2567
2568 sdata->rc_has_mcs_mask[i] = false;
2569 if (!sband)
2570 continue;
2571
2572 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2573 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2574 sdata->rc_has_mcs_mask[i] = true;
2575 break;
2576 }
2577 }
2578
2579 return 0;
2580 }
2581
2582 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2583 struct ieee80211_sub_if_data *sdata,
2584 struct ieee80211_channel *channel,
2585 unsigned int duration, u64 *cookie,
2586 struct sk_buff *txskb,
2587 enum ieee80211_roc_type type)
2588 {
2589 struct ieee80211_roc_work *roc, *tmp;
2590 bool queued = false;
2591 int ret;
2592
2593 lockdep_assert_held(&local->mtx);
2594
2595 if (local->use_chanctx && !local->ops->remain_on_channel)
2596 return -EOPNOTSUPP;
2597
2598 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2599 if (!roc)
2600 return -ENOMEM;
2601
2602 roc->chan = channel;
2603 roc->duration = duration;
2604 roc->req_duration = duration;
2605 roc->frame = txskb;
2606 roc->type = type;
2607 roc->mgmt_tx_cookie = (unsigned long)txskb;
2608 roc->sdata = sdata;
2609 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2610 INIT_LIST_HEAD(&roc->dependents);
2611
2612 /* if there's one pending or we're scanning, queue this one */
2613 if (!list_empty(&local->roc_list) ||
2614 local->scanning || local->radar_detect_enabled)
2615 goto out_check_combine;
2616
2617 /* if not HW assist, just queue & schedule work */
2618 if (!local->ops->remain_on_channel) {
2619 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2620 goto out_queue;
2621 }
2622
2623 /* otherwise actually kick it off here (for error handling) */
2624
2625 /*
2626 * If the duration is zero, then the driver
2627 * wouldn't actually do anything. Set it to
2628 * 10 for now.
2629 *
2630 * TODO: cancel the off-channel operation
2631 * when we get the SKB's TX status and
2632 * the wait time was zero before.
2633 */
2634 if (!duration)
2635 duration = 10;
2636
2637 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2638 if (ret) {
2639 kfree(roc);
2640 return ret;
2641 }
2642
2643 roc->started = true;
2644 goto out_queue;
2645
2646 out_check_combine:
2647 list_for_each_entry(tmp, &local->roc_list, list) {
2648 if (tmp->chan != channel || tmp->sdata != sdata)
2649 continue;
2650
2651 /*
2652 * Extend this ROC if possible:
2653 *
2654 * If it hasn't started yet, just increase the duration
2655 * and add the new one to the list of dependents.
2656 * If the type of the new ROC has higher priority, modify the
2657 * type of the previous one to match that of the new one.
2658 */
2659 if (!tmp->started) {
2660 list_add_tail(&roc->list, &tmp->dependents);
2661 tmp->duration = max(tmp->duration, roc->duration);
2662 tmp->type = max(tmp->type, roc->type);
2663 queued = true;
2664 break;
2665 }
2666
2667 /* If it has already started, it's more difficult ... */
2668 if (local->ops->remain_on_channel) {
2669 unsigned long j = jiffies;
2670
2671 /*
2672 * In the offloaded ROC case, if it hasn't begun, add
2673 * this new one to the dependent list to be handled
2674 * when the master one begins. If it has begun,
2675 * check that there's still a minimum time left and
2676 * if so, start this one, transmitting the frame, but
2677 * add it to the list directly after this one with
2678 * a reduced time so we'll ask the driver to execute
2679 * it right after finishing the previous one, in the
2680 * hope that it'll also be executed right afterwards,
2681 * effectively extending the old one.
2682 * If there's no minimum time left, just add it to the
2683 * normal list.
2684 * TODO: the ROC type is ignored here, assuming that it
2685 * is better to immediately use the current ROC.
2686 */
2687 if (!tmp->hw_begun) {
2688 list_add_tail(&roc->list, &tmp->dependents);
2689 queued = true;
2690 break;
2691 }
2692
2693 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2694 tmp->hw_start_time +
2695 msecs_to_jiffies(tmp->duration))) {
2696 int new_dur;
2697
2698 ieee80211_handle_roc_started(roc);
2699
2700 new_dur = roc->duration -
2701 jiffies_to_msecs(tmp->hw_start_time +
2702 msecs_to_jiffies(
2703 tmp->duration) -
2704 j);
2705
2706 if (new_dur > 0) {
2707 /* add right after tmp */
2708 list_add(&roc->list, &tmp->list);
2709 } else {
2710 list_add_tail(&roc->list,
2711 &tmp->dependents);
2712 }
2713 queued = true;
2714 }
2715 } else if (del_timer_sync(&tmp->work.timer)) {
2716 unsigned long new_end;
2717
2718 /*
2719 * In the software ROC case, cancel the timer, if
2720 * that fails then the finish work is already
2721 * queued/pending and thus we queue the new ROC
2722 * normally, if that succeeds then we can extend
2723 * the timer duration and TX the frame (if any.)
2724 */
2725
2726 list_add_tail(&roc->list, &tmp->dependents);
2727 queued = true;
2728
2729 new_end = jiffies + msecs_to_jiffies(roc->duration);
2730
2731 /* ok, it was started & we canceled timer */
2732 if (time_after(new_end, tmp->work.timer.expires))
2733 mod_timer(&tmp->work.timer, new_end);
2734 else
2735 add_timer(&tmp->work.timer);
2736
2737 ieee80211_handle_roc_started(roc);
2738 }
2739 break;
2740 }
2741
2742 out_queue:
2743 if (!queued)
2744 list_add_tail(&roc->list, &local->roc_list);
2745
2746 /*
2747 * cookie is either the roc cookie (for normal roc)
2748 * or the SKB (for mgmt TX)
2749 */
2750 if (!txskb) {
2751 /* local->mtx protects this */
2752 local->roc_cookie_counter++;
2753 roc->cookie = local->roc_cookie_counter;
2754 /* wow, you wrapped 64 bits ... more likely a bug */
2755 if (WARN_ON(roc->cookie == 0)) {
2756 roc->cookie = 1;
2757 local->roc_cookie_counter++;
2758 }
2759 *cookie = roc->cookie;
2760 } else {
2761 *cookie = (unsigned long)txskb;
2762 }
2763
2764 return 0;
2765 }
2766
2767 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2768 struct wireless_dev *wdev,
2769 struct ieee80211_channel *chan,
2770 unsigned int duration,
2771 u64 *cookie)
2772 {
2773 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2774 struct ieee80211_local *local = sdata->local;
2775 int ret;
2776
2777 mutex_lock(&local->mtx);
2778 ret = ieee80211_start_roc_work(local, sdata, chan,
2779 duration, cookie, NULL,
2780 IEEE80211_ROC_TYPE_NORMAL);
2781 mutex_unlock(&local->mtx);
2782
2783 return ret;
2784 }
2785
2786 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2787 u64 cookie, bool mgmt_tx)
2788 {
2789 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2790 int ret;
2791
2792 mutex_lock(&local->mtx);
2793 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2794 struct ieee80211_roc_work *dep, *tmp2;
2795
2796 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2797 if (!mgmt_tx && dep->cookie != cookie)
2798 continue;
2799 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2800 continue;
2801 /* found dependent item -- just remove it */
2802 list_del(&dep->list);
2803 mutex_unlock(&local->mtx);
2804
2805 ieee80211_roc_notify_destroy(dep, true);
2806 return 0;
2807 }
2808
2809 if (!mgmt_tx && roc->cookie != cookie)
2810 continue;
2811 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2812 continue;
2813
2814 found = roc;
2815 break;
2816 }
2817
2818 if (!found) {
2819 mutex_unlock(&local->mtx);
2820 return -ENOENT;
2821 }
2822
2823 /*
2824 * We found the item to cancel, so do that. Note that it
2825 * may have dependents, which we also cancel (and send
2826 * the expired signal for.) Not doing so would be quite
2827 * tricky here, but we may need to fix it later.
2828 */
2829
2830 if (local->ops->remain_on_channel) {
2831 if (found->started) {
2832 ret = drv_cancel_remain_on_channel(local);
2833 if (WARN_ON_ONCE(ret)) {
2834 mutex_unlock(&local->mtx);
2835 return ret;
2836 }
2837 }
2838
2839 list_del(&found->list);
2840
2841 if (found->started)
2842 ieee80211_start_next_roc(local);
2843 mutex_unlock(&local->mtx);
2844
2845 ieee80211_roc_notify_destroy(found, true);
2846 } else {
2847 /* work may be pending so use it all the time */
2848 found->abort = true;
2849 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2850
2851 mutex_unlock(&local->mtx);
2852
2853 /* work will clean up etc */
2854 flush_delayed_work(&found->work);
2855 WARN_ON(!found->to_be_freed);
2856 kfree(found);
2857 }
2858
2859 return 0;
2860 }
2861
2862 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2863 struct wireless_dev *wdev,
2864 u64 cookie)
2865 {
2866 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2867 struct ieee80211_local *local = sdata->local;
2868
2869 return ieee80211_cancel_roc(local, cookie, false);
2870 }
2871
2872 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2873 struct net_device *dev,
2874 struct cfg80211_chan_def *chandef)
2875 {
2876 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2877 struct ieee80211_local *local = sdata->local;
2878 unsigned long timeout;
2879 int err;
2880
2881 if (!list_empty(&local->roc_list) || local->scanning)
2882 return -EBUSY;
2883
2884 /* whatever, but channel contexts should not complain about that one */
2885 sdata->smps_mode = IEEE80211_SMPS_OFF;
2886 sdata->needed_rx_chains = local->rx_chains;
2887 sdata->radar_required = true;
2888
2889 mutex_lock(&local->iflist_mtx);
2890 err = ieee80211_vif_use_channel(sdata, chandef,
2891 IEEE80211_CHANCTX_SHARED);
2892 mutex_unlock(&local->iflist_mtx);
2893 if (err)
2894 return err;
2895
2896 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2897 ieee80211_queue_delayed_work(&sdata->local->hw,
2898 &sdata->dfs_cac_timer_work, timeout);
2899
2900 return 0;
2901 }
2902
2903 static struct cfg80211_beacon_data *
2904 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2905 {
2906 struct cfg80211_beacon_data *new_beacon;
2907 u8 *pos;
2908 int len;
2909
2910 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2911 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2912 beacon->probe_resp_len;
2913
2914 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2915 if (!new_beacon)
2916 return NULL;
2917
2918 pos = (u8 *)(new_beacon + 1);
2919 if (beacon->head_len) {
2920 new_beacon->head_len = beacon->head_len;
2921 new_beacon->head = pos;
2922 memcpy(pos, beacon->head, beacon->head_len);
2923 pos += beacon->head_len;
2924 }
2925 if (beacon->tail_len) {
2926 new_beacon->tail_len = beacon->tail_len;
2927 new_beacon->tail = pos;
2928 memcpy(pos, beacon->tail, beacon->tail_len);
2929 pos += beacon->tail_len;
2930 }
2931 if (beacon->beacon_ies_len) {
2932 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2933 new_beacon->beacon_ies = pos;
2934 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2935 pos += beacon->beacon_ies_len;
2936 }
2937 if (beacon->proberesp_ies_len) {
2938 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2939 new_beacon->proberesp_ies = pos;
2940 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2941 pos += beacon->proberesp_ies_len;
2942 }
2943 if (beacon->assocresp_ies_len) {
2944 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2945 new_beacon->assocresp_ies = pos;
2946 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2947 pos += beacon->assocresp_ies_len;
2948 }
2949 if (beacon->probe_resp_len) {
2950 new_beacon->probe_resp_len = beacon->probe_resp_len;
2951 beacon->probe_resp = pos;
2952 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2953 pos += beacon->probe_resp_len;
2954 }
2955
2956 return new_beacon;
2957 }
2958
2959 void ieee80211_csa_finalize_work(struct work_struct *work)
2960 {
2961 struct ieee80211_sub_if_data *sdata =
2962 container_of(work, struct ieee80211_sub_if_data,
2963 csa_finalize_work);
2964 struct ieee80211_local *local = sdata->local;
2965 int err, changed = 0;
2966
2967 if (!ieee80211_sdata_running(sdata))
2968 return;
2969
2970 sdata->radar_required = sdata->csa_radar_required;
2971 err = ieee80211_vif_change_channel(sdata, &local->csa_chandef,
2972 &changed);
2973 if (WARN_ON(err < 0))
2974 return;
2975
2976 if (!local->use_chanctx) {
2977 local->_oper_chandef = local->csa_chandef;
2978 ieee80211_hw_config(local, 0);
2979 }
2980
2981 ieee80211_bss_info_change_notify(sdata, changed);
2982
2983 switch (sdata->vif.type) {
2984 case NL80211_IFTYPE_AP:
2985 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
2986 if (err < 0)
2987 return;
2988 changed |= err;
2989 kfree(sdata->u.ap.next_beacon);
2990 sdata->u.ap.next_beacon = NULL;
2991
2992 ieee80211_bss_info_change_notify(sdata, err);
2993 break;
2994 case NL80211_IFTYPE_ADHOC:
2995 ieee80211_ibss_finish_csa(sdata);
2996 break;
2997 #ifdef CONFIG_MAC80211_MESH
2998 case NL80211_IFTYPE_MESH_POINT:
2999 err = ieee80211_mesh_finish_csa(sdata);
3000 if (err < 0)
3001 return;
3002 break;
3003 #endif
3004 default:
3005 WARN_ON(1);
3006 return;
3007 }
3008 sdata->vif.csa_active = false;
3009
3010 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3011 IEEE80211_MAX_QUEUE_MAP,
3012 IEEE80211_QUEUE_STOP_REASON_CSA);
3013
3014 cfg80211_ch_switch_notify(sdata->dev, &local->csa_chandef);
3015 }
3016
3017 static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3018 struct cfg80211_csa_settings *params)
3019 {
3020 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3021 struct ieee80211_local *local = sdata->local;
3022 struct ieee80211_chanctx_conf *chanctx_conf;
3023 struct ieee80211_chanctx *chanctx;
3024 struct ieee80211_if_mesh __maybe_unused *ifmsh;
3025 int err, num_chanctx;
3026
3027 if (!list_empty(&local->roc_list) || local->scanning)
3028 return -EBUSY;
3029
3030 if (sdata->wdev.cac_started)
3031 return -EBUSY;
3032
3033 if (cfg80211_chandef_identical(&params->chandef,
3034 &sdata->vif.bss_conf.chandef))
3035 return -EINVAL;
3036
3037 rcu_read_lock();
3038 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3039 if (!chanctx_conf) {
3040 rcu_read_unlock();
3041 return -EBUSY;
3042 }
3043
3044 /* don't handle for multi-VIF cases */
3045 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
3046 if (chanctx->refcount > 1) {
3047 rcu_read_unlock();
3048 return -EBUSY;
3049 }
3050 num_chanctx = 0;
3051 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3052 num_chanctx++;
3053 rcu_read_unlock();
3054
3055 if (num_chanctx > 1)
3056 return -EBUSY;
3057
3058 /* don't allow another channel switch if one is already active. */
3059 if (sdata->vif.csa_active)
3060 return -EBUSY;
3061
3062 switch (sdata->vif.type) {
3063 case NL80211_IFTYPE_AP:
3064 sdata->csa_counter_offset_beacon =
3065 params->counter_offset_beacon;
3066 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3067 sdata->u.ap.next_beacon =
3068 cfg80211_beacon_dup(&params->beacon_after);
3069 if (!sdata->u.ap.next_beacon)
3070 return -ENOMEM;
3071
3072 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3073 if (err < 0) {
3074 kfree(sdata->u.ap.next_beacon);
3075 return err;
3076 }
3077 break;
3078 case NL80211_IFTYPE_ADHOC:
3079 if (!sdata->vif.bss_conf.ibss_joined)
3080 return -EINVAL;
3081
3082 if (params->chandef.width != sdata->u.ibss.chandef.width)
3083 return -EINVAL;
3084
3085 switch (params->chandef.width) {
3086 case NL80211_CHAN_WIDTH_40:
3087 if (cfg80211_get_chandef_type(&params->chandef) !=
3088 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3089 return -EINVAL;
3090 case NL80211_CHAN_WIDTH_5:
3091 case NL80211_CHAN_WIDTH_10:
3092 case NL80211_CHAN_WIDTH_20_NOHT:
3093 case NL80211_CHAN_WIDTH_20:
3094 break;
3095 default:
3096 return -EINVAL;
3097 }
3098
3099 /* changes into another band are not supported */
3100 if (sdata->u.ibss.chandef.chan->band !=
3101 params->chandef.chan->band)
3102 return -EINVAL;
3103
3104 err = ieee80211_ibss_csa_beacon(sdata, params);
3105 if (err < 0)
3106 return err;
3107 break;
3108 #ifdef CONFIG_MAC80211_MESH
3109 case NL80211_IFTYPE_MESH_POINT:
3110 ifmsh = &sdata->u.mesh;
3111
3112 if (!ifmsh->mesh_id)
3113 return -EINVAL;
3114
3115 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3116 return -EINVAL;
3117
3118 /* changes into another band are not supported */
3119 if (sdata->vif.bss_conf.chandef.chan->band !=
3120 params->chandef.chan->band)
3121 return -EINVAL;
3122
3123 err = ieee80211_mesh_csa_beacon(sdata, params, true);
3124 if (err < 0)
3125 return err;
3126 break;
3127 #endif
3128 default:
3129 return -EOPNOTSUPP;
3130 }
3131
3132 sdata->csa_radar_required = params->radar_required;
3133
3134 if (params->block_tx)
3135 ieee80211_stop_queues_by_reason(&local->hw,
3136 IEEE80211_MAX_QUEUE_MAP,
3137 IEEE80211_QUEUE_STOP_REASON_CSA);
3138
3139 local->csa_chandef = params->chandef;
3140 sdata->vif.csa_active = true;
3141
3142 ieee80211_bss_info_change_notify(sdata, err);
3143 drv_channel_switch_beacon(sdata, &params->chandef);
3144
3145 return 0;
3146 }
3147
3148 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3149 struct ieee80211_channel *chan, bool offchan,
3150 unsigned int wait, const u8 *buf, size_t len,
3151 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
3152 {
3153 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3154 struct ieee80211_local *local = sdata->local;
3155 struct sk_buff *skb;
3156 struct sta_info *sta;
3157 const struct ieee80211_mgmt *mgmt = (void *)buf;
3158 bool need_offchan = false;
3159 u32 flags;
3160 int ret;
3161
3162 if (dont_wait_for_ack)
3163 flags = IEEE80211_TX_CTL_NO_ACK;
3164 else
3165 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3166 IEEE80211_TX_CTL_REQ_TX_STATUS;
3167
3168 if (no_cck)
3169 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3170
3171 switch (sdata->vif.type) {
3172 case NL80211_IFTYPE_ADHOC:
3173 if (!sdata->vif.bss_conf.ibss_joined)
3174 need_offchan = true;
3175 /* fall through */
3176 #ifdef CONFIG_MAC80211_MESH
3177 case NL80211_IFTYPE_MESH_POINT:
3178 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3179 !sdata->u.mesh.mesh_id_len)
3180 need_offchan = true;
3181 /* fall through */
3182 #endif
3183 case NL80211_IFTYPE_AP:
3184 case NL80211_IFTYPE_AP_VLAN:
3185 case NL80211_IFTYPE_P2P_GO:
3186 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3187 !ieee80211_vif_is_mesh(&sdata->vif) &&
3188 !rcu_access_pointer(sdata->bss->beacon))
3189 need_offchan = true;
3190 if (!ieee80211_is_action(mgmt->frame_control) ||
3191 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3192 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3193 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3194 break;
3195 rcu_read_lock();
3196 sta = sta_info_get(sdata, mgmt->da);
3197 rcu_read_unlock();
3198 if (!sta)
3199 return -ENOLINK;
3200 break;
3201 case NL80211_IFTYPE_STATION:
3202 case NL80211_IFTYPE_P2P_CLIENT:
3203 if (!sdata->u.mgd.associated)
3204 need_offchan = true;
3205 break;
3206 case NL80211_IFTYPE_P2P_DEVICE:
3207 need_offchan = true;
3208 break;
3209 default:
3210 return -EOPNOTSUPP;
3211 }
3212
3213 /* configurations requiring offchan cannot work if no channel has been
3214 * specified
3215 */
3216 if (need_offchan && !chan)
3217 return -EINVAL;
3218
3219 mutex_lock(&local->mtx);
3220
3221 /* Check if the operating channel is the requested channel */
3222 if (!need_offchan) {
3223 struct ieee80211_chanctx_conf *chanctx_conf;
3224
3225 rcu_read_lock();
3226 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3227
3228 if (chanctx_conf) {
3229 need_offchan = chan && (chan != chanctx_conf->def.chan);
3230 } else if (!chan) {
3231 ret = -EINVAL;
3232 rcu_read_unlock();
3233 goto out_unlock;
3234 } else {
3235 need_offchan = true;
3236 }
3237 rcu_read_unlock();
3238 }
3239
3240 if (need_offchan && !offchan) {
3241 ret = -EBUSY;
3242 goto out_unlock;
3243 }
3244
3245 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
3246 if (!skb) {
3247 ret = -ENOMEM;
3248 goto out_unlock;
3249 }
3250 skb_reserve(skb, local->hw.extra_tx_headroom);
3251
3252 memcpy(skb_put(skb, len), buf, len);
3253
3254 IEEE80211_SKB_CB(skb)->flags = flags;
3255
3256 skb->dev = sdata->dev;
3257
3258 if (!need_offchan) {
3259 *cookie = (unsigned long) skb;
3260 ieee80211_tx_skb(sdata, skb);
3261 ret = 0;
3262 goto out_unlock;
3263 }
3264
3265 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3266 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3267 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3268 IEEE80211_SKB_CB(skb)->hw_queue =
3269 local->hw.offchannel_tx_hw_queue;
3270
3271 /* This will handle all kinds of coalescing and immediate TX */
3272 ret = ieee80211_start_roc_work(local, sdata, chan,
3273 wait, cookie, skb,
3274 IEEE80211_ROC_TYPE_MGMT_TX);
3275 if (ret)
3276 kfree_skb(skb);
3277 out_unlock:
3278 mutex_unlock(&local->mtx);
3279 return ret;
3280 }
3281
3282 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3283 struct wireless_dev *wdev,
3284 u64 cookie)
3285 {
3286 struct ieee80211_local *local = wiphy_priv(wiphy);
3287
3288 return ieee80211_cancel_roc(local, cookie, true);
3289 }
3290
3291 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3292 struct wireless_dev *wdev,
3293 u16 frame_type, bool reg)
3294 {
3295 struct ieee80211_local *local = wiphy_priv(wiphy);
3296
3297 switch (frame_type) {
3298 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3299 if (reg)
3300 local->probe_req_reg++;
3301 else
3302 local->probe_req_reg--;
3303
3304 if (!local->open_count)
3305 break;
3306
3307 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3308 break;
3309 default:
3310 break;
3311 }
3312 }
3313
3314 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3315 {
3316 struct ieee80211_local *local = wiphy_priv(wiphy);
3317
3318 if (local->started)
3319 return -EOPNOTSUPP;
3320
3321 return drv_set_antenna(local, tx_ant, rx_ant);
3322 }
3323
3324 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3325 {
3326 struct ieee80211_local *local = wiphy_priv(wiphy);
3327
3328 return drv_get_antenna(local, tx_ant, rx_ant);
3329 }
3330
3331 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3332 {
3333 struct ieee80211_local *local = wiphy_priv(wiphy);
3334
3335 return drv_set_ringparam(local, tx, rx);
3336 }
3337
3338 static void ieee80211_get_ringparam(struct wiphy *wiphy,
3339 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3340 {
3341 struct ieee80211_local *local = wiphy_priv(wiphy);
3342
3343 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3344 }
3345
3346 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3347 struct net_device *dev,
3348 struct cfg80211_gtk_rekey_data *data)
3349 {
3350 struct ieee80211_local *local = wiphy_priv(wiphy);
3351 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3352
3353 if (!local->ops->set_rekey_data)
3354 return -EOPNOTSUPP;
3355
3356 drv_set_rekey_data(local, sdata, data);
3357
3358 return 0;
3359 }
3360
3361 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3362 {
3363 u8 *pos = (void *)skb_put(skb, 7);
3364
3365 *pos++ = WLAN_EID_EXT_CAPABILITY;
3366 *pos++ = 5; /* len */
3367 *pos++ = 0x0;
3368 *pos++ = 0x0;
3369 *pos++ = 0x0;
3370 *pos++ = 0x0;
3371 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3372 }
3373
3374 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3375 {
3376 struct ieee80211_local *local = sdata->local;
3377 u16 capab;
3378
3379 capab = 0;
3380 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
3381 return capab;
3382
3383 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3384 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3385 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3386 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3387
3388 return capab;
3389 }
3390
3391 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3392 u8 *peer, u8 *bssid)
3393 {
3394 struct ieee80211_tdls_lnkie *lnkid;
3395
3396 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3397
3398 lnkid->ie_type = WLAN_EID_LINK_ID;
3399 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3400
3401 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3402 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3403 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3404 }
3405
3406 static int
3407 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3408 u8 *peer, u8 action_code, u8 dialog_token,
3409 u16 status_code, struct sk_buff *skb)
3410 {
3411 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3412 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3413 struct ieee80211_tdls_data *tf;
3414
3415 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3416
3417 memcpy(tf->da, peer, ETH_ALEN);
3418 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3419 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3420 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3421
3422 switch (action_code) {
3423 case WLAN_TDLS_SETUP_REQUEST:
3424 tf->category = WLAN_CATEGORY_TDLS;
3425 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3426
3427 skb_put(skb, sizeof(tf->u.setup_req));
3428 tf->u.setup_req.dialog_token = dialog_token;
3429 tf->u.setup_req.capability =
3430 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3431
3432 ieee80211_add_srates_ie(sdata, skb, false, band);
3433 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3434 ieee80211_tdls_add_ext_capab(skb);
3435 break;
3436 case WLAN_TDLS_SETUP_RESPONSE:
3437 tf->category = WLAN_CATEGORY_TDLS;
3438 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3439
3440 skb_put(skb, sizeof(tf->u.setup_resp));
3441 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3442 tf->u.setup_resp.dialog_token = dialog_token;
3443 tf->u.setup_resp.capability =
3444 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3445
3446 ieee80211_add_srates_ie(sdata, skb, false, band);
3447 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3448 ieee80211_tdls_add_ext_capab(skb);
3449 break;
3450 case WLAN_TDLS_SETUP_CONFIRM:
3451 tf->category = WLAN_CATEGORY_TDLS;
3452 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3453
3454 skb_put(skb, sizeof(tf->u.setup_cfm));
3455 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3456 tf->u.setup_cfm.dialog_token = dialog_token;
3457 break;
3458 case WLAN_TDLS_TEARDOWN:
3459 tf->category = WLAN_CATEGORY_TDLS;
3460 tf->action_code = WLAN_TDLS_TEARDOWN;
3461
3462 skb_put(skb, sizeof(tf->u.teardown));
3463 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3464 break;
3465 case WLAN_TDLS_DISCOVERY_REQUEST:
3466 tf->category = WLAN_CATEGORY_TDLS;
3467 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3468
3469 skb_put(skb, sizeof(tf->u.discover_req));
3470 tf->u.discover_req.dialog_token = dialog_token;
3471 break;
3472 default:
3473 return -EINVAL;
3474 }
3475
3476 return 0;
3477 }
3478
3479 static int
3480 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3481 u8 *peer, u8 action_code, u8 dialog_token,
3482 u16 status_code, struct sk_buff *skb)
3483 {
3484 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3485 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3486 struct ieee80211_mgmt *mgmt;
3487
3488 mgmt = (void *)skb_put(skb, 24);
3489 memset(mgmt, 0, 24);
3490 memcpy(mgmt->da, peer, ETH_ALEN);
3491 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3492 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3493
3494 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3495 IEEE80211_STYPE_ACTION);
3496
3497 switch (action_code) {
3498 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3499 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3500 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3501 mgmt->u.action.u.tdls_discover_resp.action_code =
3502 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3503 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3504 dialog_token;
3505 mgmt->u.action.u.tdls_discover_resp.capability =
3506 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3507
3508 ieee80211_add_srates_ie(sdata, skb, false, band);
3509 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3510 ieee80211_tdls_add_ext_capab(skb);
3511 break;
3512 default:
3513 return -EINVAL;
3514 }
3515
3516 return 0;
3517 }
3518
3519 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3520 u8 *peer, u8 action_code, u8 dialog_token,
3521 u16 status_code, const u8 *extra_ies,
3522 size_t extra_ies_len)
3523 {
3524 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3525 struct ieee80211_local *local = sdata->local;
3526 struct sk_buff *skb = NULL;
3527 bool send_direct;
3528 int ret;
3529
3530 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3531 return -ENOTSUPP;
3532
3533 /* make sure we are in managed mode, and associated */
3534 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3535 !sdata->u.mgd.associated)
3536 return -EINVAL;
3537
3538 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3539 action_code, peer);
3540
3541 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3542 max(sizeof(struct ieee80211_mgmt),
3543 sizeof(struct ieee80211_tdls_data)) +
3544 50 + /* supported rates */
3545 7 + /* ext capab */
3546 extra_ies_len +
3547 sizeof(struct ieee80211_tdls_lnkie));
3548 if (!skb)
3549 return -ENOMEM;
3550
3551 skb_reserve(skb, local->hw.extra_tx_headroom);
3552
3553 switch (action_code) {
3554 case WLAN_TDLS_SETUP_REQUEST:
3555 case WLAN_TDLS_SETUP_RESPONSE:
3556 case WLAN_TDLS_SETUP_CONFIRM:
3557 case WLAN_TDLS_TEARDOWN:
3558 case WLAN_TDLS_DISCOVERY_REQUEST:
3559 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3560 action_code, dialog_token,
3561 status_code, skb);
3562 send_direct = false;
3563 break;
3564 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3565 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3566 dialog_token, status_code,
3567 skb);
3568 send_direct = true;
3569 break;
3570 default:
3571 ret = -ENOTSUPP;
3572 break;
3573 }
3574
3575 if (ret < 0)
3576 goto fail;
3577
3578 if (extra_ies_len)
3579 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3580
3581 /* the TDLS link IE is always added last */
3582 switch (action_code) {
3583 case WLAN_TDLS_SETUP_REQUEST:
3584 case WLAN_TDLS_SETUP_CONFIRM:
3585 case WLAN_TDLS_TEARDOWN:
3586 case WLAN_TDLS_DISCOVERY_REQUEST:
3587 /* we are the initiator */
3588 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3589 sdata->u.mgd.bssid);
3590 break;
3591 case WLAN_TDLS_SETUP_RESPONSE:
3592 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3593 /* we are the responder */
3594 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3595 sdata->u.mgd.bssid);
3596 break;
3597 default:
3598 ret = -ENOTSUPP;
3599 goto fail;
3600 }
3601
3602 if (send_direct) {
3603 ieee80211_tx_skb(sdata, skb);
3604 return 0;
3605 }
3606
3607 /*
3608 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3609 * we should default to AC_VI.
3610 */
3611 switch (action_code) {
3612 case WLAN_TDLS_SETUP_REQUEST:
3613 case WLAN_TDLS_SETUP_RESPONSE:
3614 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3615 skb->priority = 2;
3616 break;
3617 default:
3618 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3619 skb->priority = 5;
3620 break;
3621 }
3622
3623 /* disable bottom halves when entering the Tx path */
3624 local_bh_disable();
3625 ret = ieee80211_subif_start_xmit(skb, dev);
3626 local_bh_enable();
3627
3628 return ret;
3629
3630 fail:
3631 dev_kfree_skb(skb);
3632 return ret;
3633 }
3634
3635 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3636 u8 *peer, enum nl80211_tdls_operation oper)
3637 {
3638 struct sta_info *sta;
3639 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3640
3641 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3642 return -ENOTSUPP;
3643
3644 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3645 return -EINVAL;
3646
3647 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3648
3649 switch (oper) {
3650 case NL80211_TDLS_ENABLE_LINK:
3651 rcu_read_lock();
3652 sta = sta_info_get(sdata, peer);
3653 if (!sta) {
3654 rcu_read_unlock();
3655 return -ENOLINK;
3656 }
3657
3658 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3659 rcu_read_unlock();
3660 break;
3661 case NL80211_TDLS_DISABLE_LINK:
3662 return sta_info_destroy_addr(sdata, peer);
3663 case NL80211_TDLS_TEARDOWN:
3664 case NL80211_TDLS_SETUP:
3665 case NL80211_TDLS_DISCOVERY_REQ:
3666 /* We don't support in-driver setup/teardown/discovery */
3667 return -ENOTSUPP;
3668 default:
3669 return -ENOTSUPP;
3670 }
3671
3672 return 0;
3673 }
3674
3675 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3676 const u8 *peer, u64 *cookie)
3677 {
3678 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3679 struct ieee80211_local *local = sdata->local;
3680 struct ieee80211_qos_hdr *nullfunc;
3681 struct sk_buff *skb;
3682 int size = sizeof(*nullfunc);
3683 __le16 fc;
3684 bool qos;
3685 struct ieee80211_tx_info *info;
3686 struct sta_info *sta;
3687 struct ieee80211_chanctx_conf *chanctx_conf;
3688 enum ieee80211_band band;
3689
3690 rcu_read_lock();
3691 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3692 if (WARN_ON(!chanctx_conf)) {
3693 rcu_read_unlock();
3694 return -EINVAL;
3695 }
3696 band = chanctx_conf->def.chan->band;
3697 sta = sta_info_get_bss(sdata, peer);
3698 if (sta) {
3699 qos = test_sta_flag(sta, WLAN_STA_WME);
3700 } else {
3701 rcu_read_unlock();
3702 return -ENOLINK;
3703 }
3704
3705 if (qos) {
3706 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3707 IEEE80211_STYPE_QOS_NULLFUNC |
3708 IEEE80211_FCTL_FROMDS);
3709 } else {
3710 size -= 2;
3711 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3712 IEEE80211_STYPE_NULLFUNC |
3713 IEEE80211_FCTL_FROMDS);
3714 }
3715
3716 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3717 if (!skb) {
3718 rcu_read_unlock();
3719 return -ENOMEM;
3720 }
3721
3722 skb->dev = dev;
3723
3724 skb_reserve(skb, local->hw.extra_tx_headroom);
3725
3726 nullfunc = (void *) skb_put(skb, size);
3727 nullfunc->frame_control = fc;
3728 nullfunc->duration_id = 0;
3729 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3730 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3731 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3732 nullfunc->seq_ctrl = 0;
3733
3734 info = IEEE80211_SKB_CB(skb);
3735
3736 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3737 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3738
3739 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3740 skb->priority = 7;
3741 if (qos)
3742 nullfunc->qos_ctrl = cpu_to_le16(7);
3743
3744 local_bh_disable();
3745 ieee80211_xmit(sdata, skb, band);
3746 local_bh_enable();
3747 rcu_read_unlock();
3748
3749 *cookie = (unsigned long) skb;
3750 return 0;
3751 }
3752
3753 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3754 struct wireless_dev *wdev,
3755 struct cfg80211_chan_def *chandef)
3756 {
3757 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3758 struct ieee80211_local *local = wiphy_priv(wiphy);
3759 struct ieee80211_chanctx_conf *chanctx_conf;
3760 int ret = -ENODATA;
3761
3762 rcu_read_lock();
3763 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3764 if (chanctx_conf) {
3765 *chandef = chanctx_conf->def;
3766 ret = 0;
3767 } else if (local->open_count > 0 &&
3768 local->open_count == local->monitors &&
3769 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3770 if (local->use_chanctx)
3771 *chandef = local->monitor_chandef;
3772 else
3773 *chandef = local->_oper_chandef;
3774 ret = 0;
3775 }
3776 rcu_read_unlock();
3777
3778 return ret;
3779 }
3780
3781 #ifdef CONFIG_PM
3782 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3783 {
3784 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3785 }
3786 #endif
3787
3788 struct cfg80211_ops mac80211_config_ops = {
3789 .add_virtual_intf = ieee80211_add_iface,
3790 .del_virtual_intf = ieee80211_del_iface,
3791 .change_virtual_intf = ieee80211_change_iface,
3792 .start_p2p_device = ieee80211_start_p2p_device,
3793 .stop_p2p_device = ieee80211_stop_p2p_device,
3794 .add_key = ieee80211_add_key,
3795 .del_key = ieee80211_del_key,
3796 .get_key = ieee80211_get_key,
3797 .set_default_key = ieee80211_config_default_key,
3798 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3799 .start_ap = ieee80211_start_ap,
3800 .change_beacon = ieee80211_change_beacon,
3801 .stop_ap = ieee80211_stop_ap,
3802 .add_station = ieee80211_add_station,
3803 .del_station = ieee80211_del_station,
3804 .change_station = ieee80211_change_station,
3805 .get_station = ieee80211_get_station,
3806 .dump_station = ieee80211_dump_station,
3807 .dump_survey = ieee80211_dump_survey,
3808 #ifdef CONFIG_MAC80211_MESH
3809 .add_mpath = ieee80211_add_mpath,
3810 .del_mpath = ieee80211_del_mpath,
3811 .change_mpath = ieee80211_change_mpath,
3812 .get_mpath = ieee80211_get_mpath,
3813 .dump_mpath = ieee80211_dump_mpath,
3814 .update_mesh_config = ieee80211_update_mesh_config,
3815 .get_mesh_config = ieee80211_get_mesh_config,
3816 .join_mesh = ieee80211_join_mesh,
3817 .leave_mesh = ieee80211_leave_mesh,
3818 #endif
3819 .change_bss = ieee80211_change_bss,
3820 .set_txq_params = ieee80211_set_txq_params,
3821 .set_monitor_channel = ieee80211_set_monitor_channel,
3822 .suspend = ieee80211_suspend,
3823 .resume = ieee80211_resume,
3824 .scan = ieee80211_scan,
3825 .sched_scan_start = ieee80211_sched_scan_start,
3826 .sched_scan_stop = ieee80211_sched_scan_stop,
3827 .auth = ieee80211_auth,
3828 .assoc = ieee80211_assoc,
3829 .deauth = ieee80211_deauth,
3830 .disassoc = ieee80211_disassoc,
3831 .join_ibss = ieee80211_join_ibss,
3832 .leave_ibss = ieee80211_leave_ibss,
3833 .set_mcast_rate = ieee80211_set_mcast_rate,
3834 .set_wiphy_params = ieee80211_set_wiphy_params,
3835 .set_tx_power = ieee80211_set_tx_power,
3836 .get_tx_power = ieee80211_get_tx_power,
3837 .set_wds_peer = ieee80211_set_wds_peer,
3838 .rfkill_poll = ieee80211_rfkill_poll,
3839 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3840 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3841 .set_power_mgmt = ieee80211_set_power_mgmt,
3842 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3843 .remain_on_channel = ieee80211_remain_on_channel,
3844 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3845 .mgmt_tx = ieee80211_mgmt_tx,
3846 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3847 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3848 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3849 .set_antenna = ieee80211_set_antenna,
3850 .get_antenna = ieee80211_get_antenna,
3851 .set_ringparam = ieee80211_set_ringparam,
3852 .get_ringparam = ieee80211_get_ringparam,
3853 .set_rekey_data = ieee80211_set_rekey_data,
3854 .tdls_oper = ieee80211_tdls_oper,
3855 .tdls_mgmt = ieee80211_tdls_mgmt,
3856 .probe_client = ieee80211_probe_client,
3857 .set_noack_map = ieee80211_set_noack_map,
3858 #ifdef CONFIG_PM
3859 .set_wakeup = ieee80211_set_wakeup,
3860 #endif
3861 .get_et_sset_count = ieee80211_get_et_sset_count,
3862 .get_et_stats = ieee80211_get_et_stats,
3863 .get_et_strings = ieee80211_get_et_strings,
3864 .get_channel = ieee80211_cfg_get_channel,
3865 .start_radar_detection = ieee80211_start_radar_detection,
3866 .channel_switch = ieee80211_channel_switch,
3867 };
Linus' kernel tree