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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
23static 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
46static 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
53static 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
81
82
83
84
85
86
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
99
100
101
102 sdata->u.mntr_flags = *flags;
103 }
104 }
105
106 return 0;
107}
108
109static int ieee80211_start_p2p_device(struct wiphy *wiphy,
110 struct wireless_dev *wdev)
111{
112 return ieee80211_do_open(wdev, true);
113}
114
115static 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
121static 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
131static 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
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
172
173
174
175
176
177
178
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
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
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
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
227static 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
268static 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(¶ms, 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, ¶ms);
354 err = 0;
355
356 out:
357 rcu_read_unlock();
358 return err;
359}
360
361static 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
373static 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
384void 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
416void 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
450static 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
571static 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
582static 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
599static 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
635
636
637
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
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
682do_survey:
683 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
684
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
744static 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
758static 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
780static 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
788static 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
809static 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
841static 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
865int 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
876 if (!params->head && !old)
877 return -EINVAL;
878
879
880 if (params->head)
881 new_head_len = params->head_len;
882 else
883 new_head_len = old->head_len;
884
885
886 if (params->tail || !old)
887
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
899
900
901
902
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
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
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
937static 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
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, ¶ms->chandef,
960 IEEE80211_CHANCTX_SHARED);
961 if (err)
962 return err;
963 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
964
965
966
967
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, ¶ms->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
1020static 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
1030
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
1046static 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
1060 sdata->vif.csa_active = false;
1061 cancel_work_sync(&sdata->csa_finalize_work);
1062
1063
1064 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1065 netif_carrier_off(vlan->dev);
1066 netif_carrier_off(dev);
1067
1068
1069 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1070 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1071 kfree_rcu(old_beacon, rcu_head);
1072 if (old_probe_resp)
1073 kfree_rcu(old_probe_resp, rcu_head);
1074
1075 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1076 sta_info_flush_defer(vlan);
1077 sta_info_flush_defer(sdata);
1078 synchronize_net();
1079 rcu_barrier();
1080 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1081 sta_info_flush_cleanup(vlan);
1082 ieee80211_free_keys(vlan);
1083 }
1084 sta_info_flush_cleanup(sdata);
1085 ieee80211_free_keys(sdata);
1086
1087 sdata->vif.bss_conf.enable_beacon = false;
1088 sdata->vif.bss_conf.ssid_len = 0;
1089 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1090 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1091
1092 if (sdata->wdev.cac_started) {
1093 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1094 cfg80211_cac_event(sdata->dev, NL80211_RADAR_CAC_ABORTED,
1095 GFP_KERNEL);
1096 }
1097
1098 drv_stop_ap(sdata->local, sdata);
1099
1100
1101 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1102 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1103
1104 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1105 ieee80211_vif_release_channel(sdata);
1106
1107 return 0;
1108}
1109
1110
1111struct iapp_layer2_update {
1112 u8 da[ETH_ALEN];
1113 u8 sa[ETH_ALEN];
1114 __be16 len;
1115 u8 dsap;
1116 u8 ssap;
1117 u8 control;
1118 u8 xid_info[3];
1119} __packed;
1120
1121static void ieee80211_send_layer2_update(struct sta_info *sta)
1122{
1123 struct iapp_layer2_update *msg;
1124 struct sk_buff *skb;
1125
1126
1127
1128
1129 skb = dev_alloc_skb(sizeof(*msg));
1130 if (!skb)
1131 return;
1132 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1133
1134
1135
1136
1137 eth_broadcast_addr(msg->da);
1138 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1139 msg->len = htons(6);
1140 msg->dsap = 0;
1141 msg->ssap = 0x01;
1142 msg->control = 0xaf;
1143
1144 msg->xid_info[0] = 0x81;
1145 msg->xid_info[1] = 1;
1146 msg->xid_info[2] = 0;
1147
1148 skb->dev = sta->sdata->dev;
1149 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1150 memset(skb->cb, 0, sizeof(skb->cb));
1151 netif_rx_ni(skb);
1152}
1153
1154static int sta_apply_auth_flags(struct ieee80211_local *local,
1155 struct sta_info *sta,
1156 u32 mask, u32 set)
1157{
1158 int ret;
1159
1160 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1161 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1162 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1163 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1164 if (ret)
1165 return ret;
1166 }
1167
1168 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1169 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1170 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1171 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1172 if (ret)
1173 return ret;
1174 }
1175
1176 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1177 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1178 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1179 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1180 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1181 else
1182 ret = 0;
1183 if (ret)
1184 return ret;
1185 }
1186
1187 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1188 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1189 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1190 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1191 if (ret)
1192 return ret;
1193 }
1194
1195 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1196 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1197 test_sta_flag(sta, WLAN_STA_AUTH)) {
1198 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1199 if (ret)
1200 return ret;
1201 }
1202
1203 return 0;
1204}
1205
1206static int sta_apply_parameters(struct ieee80211_local *local,
1207 struct sta_info *sta,
1208 struct station_parameters *params)
1209{
1210 int ret = 0;
1211 struct ieee80211_supported_band *sband;
1212 struct ieee80211_sub_if_data *sdata = sta->sdata;
1213 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1214 u32 mask, set;
1215
1216 sband = local->hw.wiphy->bands[band];
1217
1218 mask = params->sta_flags_mask;
1219 set = params->sta_flags_set;
1220
1221 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1222
1223
1224
1225
1226 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1227 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1228 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1229 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1230 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1231
1232
1233
1234
1235
1236 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1237 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1238 BIT(NL80211_STA_FLAG_ASSOCIATED);
1239 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1240 BIT(NL80211_STA_FLAG_ASSOCIATED);
1241 }
1242 }
1243
1244 ret = sta_apply_auth_flags(local, sta, mask, set);
1245 if (ret)
1246 return ret;
1247
1248 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1249 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1250 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1251 else
1252 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1253 }
1254
1255 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1256 if (set & BIT(NL80211_STA_FLAG_WME)) {
1257 set_sta_flag(sta, WLAN_STA_WME);
1258 sta->sta.wme = true;
1259 } else {
1260 clear_sta_flag(sta, WLAN_STA_WME);
1261 sta->sta.wme = false;
1262 }
1263 }
1264
1265 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1266 if (set & BIT(NL80211_STA_FLAG_MFP))
1267 set_sta_flag(sta, WLAN_STA_MFP);
1268 else
1269 clear_sta_flag(sta, WLAN_STA_MFP);
1270 }
1271
1272 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1273 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1274 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1275 else
1276 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1277 }
1278
1279 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1280 sta->sta.uapsd_queues = params->uapsd_queues;
1281 sta->sta.max_sp = params->max_sp;
1282 }
1283
1284
1285
1286
1287
1288 if (params->aid)
1289 sta->sta.aid = params->aid;
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299 if (params->listen_interval >= 0)
1300 sta->listen_interval = params->listen_interval;
1301
1302 if (params->supported_rates) {
1303 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1304 sband, params->supported_rates,
1305 params->supported_rates_len,
1306 &sta->sta.supp_rates[band]);
1307 }
1308
1309 if (params->ht_capa)
1310 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1311 params->ht_capa, sta);
1312
1313 if (params->vht_capa)
1314 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1315 params->vht_capa, sta);
1316
1317 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1318#ifdef CONFIG_MAC80211_MESH
1319 u32 changed = 0;
1320
1321 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1322 switch (params->plink_state) {
1323 case NL80211_PLINK_ESTAB:
1324 if (sta->plink_state != NL80211_PLINK_ESTAB)
1325 changed = mesh_plink_inc_estab_count(
1326 sdata);
1327 sta->plink_state = params->plink_state;
1328
1329 ieee80211_mps_sta_status_update(sta);
1330 changed |= ieee80211_mps_set_sta_local_pm(sta,
1331 sdata->u.mesh.mshcfg.power_mode);
1332 break;
1333 case NL80211_PLINK_LISTEN:
1334 case NL80211_PLINK_BLOCKED:
1335 case NL80211_PLINK_OPN_SNT:
1336 case NL80211_PLINK_OPN_RCVD:
1337 case NL80211_PLINK_CNF_RCVD:
1338 case NL80211_PLINK_HOLDING:
1339 if (sta->plink_state == NL80211_PLINK_ESTAB)
1340 changed = mesh_plink_dec_estab_count(
1341 sdata);
1342 sta->plink_state = params->plink_state;
1343
1344 ieee80211_mps_sta_status_update(sta);
1345 changed |=
1346 ieee80211_mps_local_status_update(sdata);
1347 break;
1348 default:
1349
1350 break;
1351 }
1352 }
1353
1354 switch (params->plink_action) {
1355 case NL80211_PLINK_ACTION_NO_ACTION:
1356
1357 break;
1358 case NL80211_PLINK_ACTION_OPEN:
1359 changed |= mesh_plink_open(sta);
1360 break;
1361 case NL80211_PLINK_ACTION_BLOCK:
1362 changed |= mesh_plink_block(sta);
1363 break;
1364 }
1365
1366 if (params->local_pm)
1367 changed |=
1368 ieee80211_mps_set_sta_local_pm(sta,
1369 params->local_pm);
1370 ieee80211_bss_info_change_notify(sdata, changed);
1371#endif
1372 }
1373
1374 return 0;
1375}
1376
1377static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1378 u8 *mac, struct station_parameters *params)
1379{
1380 struct ieee80211_local *local = wiphy_priv(wiphy);
1381 struct sta_info *sta;
1382 struct ieee80211_sub_if_data *sdata;
1383 int err;
1384 int layer2_update;
1385
1386 if (params->vlan) {
1387 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1388
1389 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1390 sdata->vif.type != NL80211_IFTYPE_AP)
1391 return -EINVAL;
1392 } else
1393 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1394
1395 if (ether_addr_equal(mac, sdata->vif.addr))
1396 return -EINVAL;
1397
1398 if (is_multicast_ether_addr(mac))
1399 return -EINVAL;
1400
1401 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1402 if (!sta)
1403 return -ENOMEM;
1404
1405
1406
1407
1408
1409 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1410 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1411 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1412 }
1413
1414 err = sta_apply_parameters(local, sta, params);
1415 if (err) {
1416 sta_info_free(local, sta);
1417 return err;
1418 }
1419
1420
1421
1422
1423
1424 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1425 rate_control_rate_init(sta);
1426
1427 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1428 sdata->vif.type == NL80211_IFTYPE_AP;
1429
1430 err = sta_info_insert_rcu(sta);
1431 if (err) {
1432 rcu_read_unlock();
1433 return err;
1434 }
1435
1436 if (layer2_update)
1437 ieee80211_send_layer2_update(sta);
1438
1439 rcu_read_unlock();
1440
1441 return 0;
1442}
1443
1444static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1445 u8 *mac)
1446{
1447 struct ieee80211_sub_if_data *sdata;
1448
1449 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1450
1451 if (mac)
1452 return sta_info_destroy_addr_bss(sdata, mac);
1453
1454 sta_info_flush(sdata);
1455 return 0;
1456}
1457
1458static int ieee80211_change_station(struct wiphy *wiphy,
1459 struct net_device *dev, u8 *mac,
1460 struct station_parameters *params)
1461{
1462 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1463 struct ieee80211_local *local = wiphy_priv(wiphy);
1464 struct sta_info *sta;
1465 struct ieee80211_sub_if_data *vlansdata;
1466 enum cfg80211_station_type statype;
1467 int err;
1468
1469 mutex_lock(&local->sta_mtx);
1470
1471 sta = sta_info_get_bss(sdata, mac);
1472 if (!sta) {
1473 err = -ENOENT;
1474 goto out_err;
1475 }
1476
1477 switch (sdata->vif.type) {
1478 case NL80211_IFTYPE_MESH_POINT:
1479 if (sdata->u.mesh.user_mpm)
1480 statype = CFG80211_STA_MESH_PEER_USER;
1481 else
1482 statype = CFG80211_STA_MESH_PEER_KERNEL;
1483 break;
1484 case NL80211_IFTYPE_ADHOC:
1485 statype = CFG80211_STA_IBSS;
1486 break;
1487 case NL80211_IFTYPE_STATION:
1488 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1489 statype = CFG80211_STA_AP_STA;
1490 break;
1491 }
1492 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1493 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1494 else
1495 statype = CFG80211_STA_TDLS_PEER_SETUP;
1496 break;
1497 case NL80211_IFTYPE_AP:
1498 case NL80211_IFTYPE_AP_VLAN:
1499 statype = CFG80211_STA_AP_CLIENT;
1500 break;
1501 default:
1502 err = -EOPNOTSUPP;
1503 goto out_err;
1504 }
1505
1506 err = cfg80211_check_station_change(wiphy, params, statype);
1507 if (err)
1508 goto out_err;
1509
1510 if (params->vlan && params->vlan != sta->sdata->dev) {
1511 bool prev_4addr = false;
1512 bool new_4addr = false;
1513
1514 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1515
1516 if (params->vlan->ieee80211_ptr->use_4addr) {
1517 if (vlansdata->u.vlan.sta) {
1518 err = -EBUSY;
1519 goto out_err;
1520 }
1521
1522 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1523 new_4addr = true;
1524 }
1525
1526 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1527 sta->sdata->u.vlan.sta) {
1528 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1529 prev_4addr = true;
1530 }
1531
1532 sta->sdata = vlansdata;
1533
1534 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1535 prev_4addr != new_4addr) {
1536 if (new_4addr)
1537 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1538 else
1539 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1540 }
1541
1542 ieee80211_send_layer2_update(sta);
1543 }
1544
1545 err = sta_apply_parameters(local, sta, params);
1546 if (err)
1547 goto out_err;
1548
1549
1550 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1551 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1552 rate_control_rate_init(sta);
1553
1554 mutex_unlock(&local->sta_mtx);
1555
1556 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1557 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1558 ieee80211_recalc_ps(local, -1);
1559 ieee80211_recalc_ps_vif(sdata);
1560 }
1561
1562 return 0;
1563out_err:
1564 mutex_unlock(&local->sta_mtx);
1565 return err;
1566}
1567
1568#ifdef CONFIG_MAC80211_MESH
1569static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1570 u8 *dst, u8 *next_hop)
1571{
1572 struct ieee80211_sub_if_data *sdata;
1573 struct mesh_path *mpath;
1574 struct sta_info *sta;
1575
1576 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1577
1578 rcu_read_lock();
1579 sta = sta_info_get(sdata, next_hop);
1580 if (!sta) {
1581 rcu_read_unlock();
1582 return -ENOENT;
1583 }
1584
1585 mpath = mesh_path_add(sdata, dst);
1586 if (IS_ERR(mpath)) {
1587 rcu_read_unlock();
1588 return PTR_ERR(mpath);
1589 }
1590
1591 mesh_path_fix_nexthop(mpath, sta);
1592
1593 rcu_read_unlock();
1594 return 0;
1595}
1596
1597static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1598 u8 *dst)
1599{
1600 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1601
1602 if (dst)
1603 return mesh_path_del(sdata, dst);
1604
1605 mesh_path_flush_by_iface(sdata);
1606 return 0;
1607}
1608
1609static int ieee80211_change_mpath(struct wiphy *wiphy,
1610 struct net_device *dev,
1611 u8 *dst, u8 *next_hop)
1612{
1613 struct ieee80211_sub_if_data *sdata;
1614 struct mesh_path *mpath;
1615 struct sta_info *sta;
1616
1617 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1618
1619 rcu_read_lock();
1620
1621 sta = sta_info_get(sdata, next_hop);
1622 if (!sta) {
1623 rcu_read_unlock();
1624 return -ENOENT;
1625 }
1626
1627 mpath = mesh_path_lookup(sdata, dst);
1628 if (!mpath) {
1629 rcu_read_unlock();
1630 return -ENOENT;
1631 }
1632
1633 mesh_path_fix_nexthop(mpath, sta);
1634
1635 rcu_read_unlock();
1636 return 0;
1637}
1638
1639static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1640 struct mpath_info *pinfo)
1641{
1642 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1643
1644 if (next_hop_sta)
1645 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1646 else
1647 memset(next_hop, 0, ETH_ALEN);
1648
1649 memset(pinfo, 0, sizeof(*pinfo));
1650
1651 pinfo->generation = mesh_paths_generation;
1652
1653 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1654 MPATH_INFO_SN |
1655 MPATH_INFO_METRIC |
1656 MPATH_INFO_EXPTIME |
1657 MPATH_INFO_DISCOVERY_TIMEOUT |
1658 MPATH_INFO_DISCOVERY_RETRIES |
1659 MPATH_INFO_FLAGS;
1660
1661 pinfo->frame_qlen = mpath->frame_queue.qlen;
1662 pinfo->sn = mpath->sn;
1663 pinfo->metric = mpath->metric;
1664 if (time_before(jiffies, mpath->exp_time))
1665 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1666 pinfo->discovery_timeout =
1667 jiffies_to_msecs(mpath->discovery_timeout);
1668 pinfo->discovery_retries = mpath->discovery_retries;
1669 if (mpath->flags & MESH_PATH_ACTIVE)
1670 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1671 if (mpath->flags & MESH_PATH_RESOLVING)
1672 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1673 if (mpath->flags & MESH_PATH_SN_VALID)
1674 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1675 if (mpath->flags & MESH_PATH_FIXED)
1676 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1677 if (mpath->flags & MESH_PATH_RESOLVED)
1678 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1679}
1680
1681static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1682 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1683
1684{
1685 struct ieee80211_sub_if_data *sdata;
1686 struct mesh_path *mpath;
1687
1688 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1689
1690 rcu_read_lock();
1691 mpath = mesh_path_lookup(sdata, dst);
1692 if (!mpath) {
1693 rcu_read_unlock();
1694 return -ENOENT;
1695 }
1696 memcpy(dst, mpath->dst, ETH_ALEN);
1697 mpath_set_pinfo(mpath, next_hop, pinfo);
1698 rcu_read_unlock();
1699 return 0;
1700}
1701
1702static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1703 int idx, u8 *dst, u8 *next_hop,
1704 struct mpath_info *pinfo)
1705{
1706 struct ieee80211_sub_if_data *sdata;
1707 struct mesh_path *mpath;
1708
1709 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1710
1711 rcu_read_lock();
1712 mpath = mesh_path_lookup_by_idx(sdata, idx);
1713 if (!mpath) {
1714 rcu_read_unlock();
1715 return -ENOENT;
1716 }
1717 memcpy(dst, mpath->dst, ETH_ALEN);
1718 mpath_set_pinfo(mpath, next_hop, pinfo);
1719 rcu_read_unlock();
1720 return 0;
1721}
1722
1723static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1724 struct net_device *dev,
1725 struct mesh_config *conf)
1726{
1727 struct ieee80211_sub_if_data *sdata;
1728 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1729
1730 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1731 return 0;
1732}
1733
1734static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1735{
1736 return (mask >> (parm-1)) & 0x1;
1737}
1738
1739static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1740 const struct mesh_setup *setup)
1741{
1742 u8 *new_ie;
1743 const u8 *old_ie;
1744 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1745 struct ieee80211_sub_if_data, u.mesh);
1746
1747
1748 new_ie = NULL;
1749 old_ie = ifmsh->ie;
1750
1751 if (setup->ie_len) {
1752 new_ie = kmemdup(setup->ie, setup->ie_len,
1753 GFP_KERNEL);
1754 if (!new_ie)
1755 return -ENOMEM;
1756 }
1757 ifmsh->ie_len = setup->ie_len;
1758 ifmsh->ie = new_ie;
1759 kfree(old_ie);
1760
1761
1762 ifmsh->mesh_id_len = setup->mesh_id_len;
1763 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1764 ifmsh->mesh_sp_id = setup->sync_method;
1765 ifmsh->mesh_pp_id = setup->path_sel_proto;
1766 ifmsh->mesh_pm_id = setup->path_metric;
1767 ifmsh->user_mpm = setup->user_mpm;
1768 ifmsh->mesh_auth_id = setup->auth_id;
1769 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1770 if (setup->is_authenticated)
1771 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1772 if (setup->is_secure)
1773 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1774
1775
1776 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1777 sizeof(setup->mcast_rate));
1778 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1779
1780 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1781 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1782
1783 return 0;
1784}
1785
1786static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1787 struct net_device *dev, u32 mask,
1788 const struct mesh_config *nconf)
1789{
1790 struct mesh_config *conf;
1791 struct ieee80211_sub_if_data *sdata;
1792 struct ieee80211_if_mesh *ifmsh;
1793
1794 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1795 ifmsh = &sdata->u.mesh;
1796
1797
1798 conf = &(sdata->u.mesh.mshcfg);
1799 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1800 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1801 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1802 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1803 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1804 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1805 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1806 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1807 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1808 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1809 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1810 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1811 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1812 conf->element_ttl = nconf->element_ttl;
1813 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1814 if (ifmsh->user_mpm)
1815 return -EBUSY;
1816 conf->auto_open_plinks = nconf->auto_open_plinks;
1817 }
1818 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1819 conf->dot11MeshNbrOffsetMaxNeighbor =
1820 nconf->dot11MeshNbrOffsetMaxNeighbor;
1821 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1822 conf->dot11MeshHWMPmaxPREQretries =
1823 nconf->dot11MeshHWMPmaxPREQretries;
1824 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1825 conf->path_refresh_time = nconf->path_refresh_time;
1826 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1827 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1828 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1829 conf->dot11MeshHWMPactivePathTimeout =
1830 nconf->dot11MeshHWMPactivePathTimeout;
1831 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1832 conf->dot11MeshHWMPpreqMinInterval =
1833 nconf->dot11MeshHWMPpreqMinInterval;
1834 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1835 conf->dot11MeshHWMPperrMinInterval =
1836 nconf->dot11MeshHWMPperrMinInterval;
1837 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1838 mask))
1839 conf->dot11MeshHWMPnetDiameterTraversalTime =
1840 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1841 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1842 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1843 ieee80211_mesh_root_setup(ifmsh);
1844 }
1845 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1846
1847
1848
1849 if (nconf->dot11MeshGateAnnouncementProtocol &&
1850 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1851 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1852 ieee80211_mesh_root_setup(ifmsh);
1853 }
1854 conf->dot11MeshGateAnnouncementProtocol =
1855 nconf->dot11MeshGateAnnouncementProtocol;
1856 }
1857 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1858 conf->dot11MeshHWMPRannInterval =
1859 nconf->dot11MeshHWMPRannInterval;
1860 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1861 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1862 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1863
1864
1865
1866 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1867 return -ENOTSUPP;
1868 conf->rssi_threshold = nconf->rssi_threshold;
1869 }
1870 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1871 conf->ht_opmode = nconf->ht_opmode;
1872 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1873 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1874 }
1875 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1876 conf->dot11MeshHWMPactivePathToRootTimeout =
1877 nconf->dot11MeshHWMPactivePathToRootTimeout;
1878 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1879 conf->dot11MeshHWMProotInterval =
1880 nconf->dot11MeshHWMProotInterval;
1881 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1882 conf->dot11MeshHWMPconfirmationInterval =
1883 nconf->dot11MeshHWMPconfirmationInterval;
1884 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1885 conf->power_mode = nconf->power_mode;
1886 ieee80211_mps_local_status_update(sdata);
1887 }
1888 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1889 conf->dot11MeshAwakeWindowDuration =
1890 nconf->dot11MeshAwakeWindowDuration;
1891 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1892 conf->plink_timeout = nconf->plink_timeout;
1893 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1894 return 0;
1895}
1896
1897static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1898 const struct mesh_config *conf,
1899 const struct mesh_setup *setup)
1900{
1901 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1902 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1903 int err;
1904
1905 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1906 err = copy_mesh_setup(ifmsh, setup);
1907 if (err)
1908 return err;
1909
1910
1911 sdata->smps_mode = IEEE80211_SMPS_OFF;
1912 sdata->needed_rx_chains = sdata->local->rx_chains;
1913
1914 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1915 IEEE80211_CHANCTX_SHARED);
1916 if (err)
1917 return err;
1918
1919 return ieee80211_start_mesh(sdata);
1920}
1921
1922static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1923{
1924 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1925
1926 ieee80211_stop_mesh(sdata);
1927 ieee80211_vif_release_channel(sdata);
1928
1929 return 0;
1930}
1931#endif
1932
1933static int ieee80211_change_bss(struct wiphy *wiphy,
1934 struct net_device *dev,
1935 struct bss_parameters *params)
1936{
1937 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1938 enum ieee80211_band band;
1939 u32 changed = 0;
1940
1941 if (!rtnl_dereference(sdata->u.ap.beacon))
1942 return -ENOENT;
1943
1944 band = ieee80211_get_sdata_band(sdata);
1945
1946 if (params->use_cts_prot >= 0) {
1947 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1948 changed |= BSS_CHANGED_ERP_CTS_PROT;
1949 }
1950 if (params->use_short_preamble >= 0) {
1951 sdata->vif.bss_conf.use_short_preamble =
1952 params->use_short_preamble;
1953 changed |= BSS_CHANGED_ERP_PREAMBLE;
1954 }
1955
1956 if (!sdata->vif.bss_conf.use_short_slot &&
1957 band == IEEE80211_BAND_5GHZ) {
1958 sdata->vif.bss_conf.use_short_slot = true;
1959 changed |= BSS_CHANGED_ERP_SLOT;
1960 }
1961
1962 if (params->use_short_slot_time >= 0) {
1963 sdata->vif.bss_conf.use_short_slot =
1964 params->use_short_slot_time;
1965 changed |= BSS_CHANGED_ERP_SLOT;
1966 }
1967
1968 if (params->basic_rates) {
1969 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1970 wiphy->bands[band],
1971 params->basic_rates,
1972 params->basic_rates_len,
1973 &sdata->vif.bss_conf.basic_rates);
1974 changed |= BSS_CHANGED_BASIC_RATES;
1975 }
1976
1977 if (params->ap_isolate >= 0) {
1978 if (params->ap_isolate)
1979 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1980 else
1981 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1982 }
1983
1984 if (params->ht_opmode >= 0) {
1985 sdata->vif.bss_conf.ht_operation_mode =
1986 (u16) params->ht_opmode;
1987 changed |= BSS_CHANGED_HT;
1988 }
1989
1990 if (params->p2p_ctwindow >= 0) {
1991 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1992 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1993 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1994 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1995 changed |= BSS_CHANGED_P2P_PS;
1996 }
1997
1998 if (params->p2p_opp_ps > 0) {
1999 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2000 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2001 changed |= BSS_CHANGED_P2P_PS;
2002 } else if (params->p2p_opp_ps == 0) {
2003 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2004 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2005 changed |= BSS_CHANGED_P2P_PS;
2006 }
2007
2008 ieee80211_bss_info_change_notify(sdata, changed);
2009
2010 return 0;
2011}
2012
2013static int ieee80211_set_txq_params(struct wiphy *wiphy,
2014 struct net_device *dev,
2015 struct ieee80211_txq_params *params)
2016{
2017 struct ieee80211_local *local = wiphy_priv(wiphy);
2018 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2019 struct ieee80211_tx_queue_params p;
2020
2021 if (!local->ops->conf_tx)
2022 return -EOPNOTSUPP;
2023
2024 if (local->hw.queues < IEEE80211_NUM_ACS)
2025 return -EOPNOTSUPP;
2026
2027 memset(&p, 0, sizeof(p));
2028 p.aifs = params->aifs;
2029 p.cw_max = params->cwmax;
2030 p.cw_min = params->cwmin;
2031 p.txop = params->txop;
2032
2033
2034
2035
2036
2037 p.uapsd = false;
2038
2039 sdata->tx_conf[params->ac] = p;
2040 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2041 wiphy_debug(local->hw.wiphy,
2042 "failed to set TX queue parameters for AC %d\n",
2043 params->ac);
2044 return -EINVAL;
2045 }
2046
2047 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2048
2049 return 0;
2050}
2051
2052#ifdef CONFIG_PM
2053static int ieee80211_suspend(struct wiphy *wiphy,
2054 struct cfg80211_wowlan *wowlan)
2055{
2056 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2057}
2058
2059static int ieee80211_resume(struct wiphy *wiphy)
2060{
2061 return __ieee80211_resume(wiphy_priv(wiphy));
2062}
2063#else
2064#define ieee80211_suspend NULL
2065#define ieee80211_resume NULL
2066#endif
2067
2068static int ieee80211_scan(struct wiphy *wiphy,
2069 struct cfg80211_scan_request *req)
2070{
2071 struct ieee80211_sub_if_data *sdata;
2072
2073 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2074
2075 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2076 case NL80211_IFTYPE_STATION:
2077 case NL80211_IFTYPE_ADHOC:
2078 case NL80211_IFTYPE_MESH_POINT:
2079 case NL80211_IFTYPE_P2P_CLIENT:
2080 case NL80211_IFTYPE_P2P_DEVICE:
2081 break;
2082 case NL80211_IFTYPE_P2P_GO:
2083 if (sdata->local->ops->hw_scan)
2084 break;
2085
2086
2087
2088
2089
2090 case NL80211_IFTYPE_AP:
2091
2092
2093
2094
2095
2096
2097
2098 if (sdata->u.ap.beacon &&
2099 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2100 !(req->flags & NL80211_SCAN_FLAG_AP)))
2101 return -EOPNOTSUPP;
2102 break;
2103 default:
2104 return -EOPNOTSUPP;
2105 }
2106
2107 return ieee80211_request_scan(sdata, req);
2108}
2109
2110static int
2111ieee80211_sched_scan_start(struct wiphy *wiphy,
2112 struct net_device *dev,
2113 struct cfg80211_sched_scan_request *req)
2114{
2115 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2116
2117 if (!sdata->local->ops->sched_scan_start)
2118 return -EOPNOTSUPP;
2119
2120 return ieee80211_request_sched_scan_start(sdata, req);
2121}
2122
2123static int
2124ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2125{
2126 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2127
2128 if (!sdata->local->ops->sched_scan_stop)
2129 return -EOPNOTSUPP;
2130
2131 return ieee80211_request_sched_scan_stop(sdata);
2132}
2133
2134static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2135 struct cfg80211_auth_request *req)
2136{
2137 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2138}
2139
2140static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2141 struct cfg80211_assoc_request *req)
2142{
2143 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2144}
2145
2146static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2147 struct cfg80211_deauth_request *req)
2148{
2149 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2150}
2151
2152static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2153 struct cfg80211_disassoc_request *req)
2154{
2155 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2156}
2157
2158static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2159 struct cfg80211_ibss_params *params)
2160{
2161 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2162}
2163
2164static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2165{
2166 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2167}
2168
2169static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2170 int rate[IEEE80211_NUM_BANDS])
2171{
2172 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2173
2174 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2175 sizeof(int) * IEEE80211_NUM_BANDS);
2176
2177 return 0;
2178}
2179
2180static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2181{
2182 struct ieee80211_local *local = wiphy_priv(wiphy);
2183 int err;
2184
2185 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2186 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2187
2188 if (err)
2189 return err;
2190 }
2191
2192 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2193 err = drv_set_coverage_class(local, wiphy->coverage_class);
2194
2195 if (err)
2196 return err;
2197 }
2198
2199 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2200 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2201
2202 if (err)
2203 return err;
2204 }
2205
2206 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2207 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2208 return -EINVAL;
2209 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2210 }
2211 if (changed & WIPHY_PARAM_RETRY_LONG) {
2212 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2213 return -EINVAL;
2214 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2215 }
2216 if (changed &
2217 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2218 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2219
2220 return 0;
2221}
2222
2223static int ieee80211_set_tx_power(struct wiphy *wiphy,
2224 struct wireless_dev *wdev,
2225 enum nl80211_tx_power_setting type, int mbm)
2226{
2227 struct ieee80211_local *local = wiphy_priv(wiphy);
2228 struct ieee80211_sub_if_data *sdata;
2229
2230 if (wdev) {
2231 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2232
2233 switch (type) {
2234 case NL80211_TX_POWER_AUTOMATIC:
2235 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2236 break;
2237 case NL80211_TX_POWER_LIMITED:
2238 case NL80211_TX_POWER_FIXED:
2239 if (mbm < 0 || (mbm % 100))
2240 return -EOPNOTSUPP;
2241 sdata->user_power_level = MBM_TO_DBM(mbm);
2242 break;
2243 }
2244
2245 ieee80211_recalc_txpower(sdata);
2246
2247 return 0;
2248 }
2249
2250 switch (type) {
2251 case NL80211_TX_POWER_AUTOMATIC:
2252 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2253 break;
2254 case NL80211_TX_POWER_LIMITED:
2255 case NL80211_TX_POWER_FIXED:
2256 if (mbm < 0 || (mbm % 100))
2257 return -EOPNOTSUPP;
2258 local->user_power_level = MBM_TO_DBM(mbm);
2259 break;
2260 }
2261
2262 mutex_lock(&local->iflist_mtx);
2263 list_for_each_entry(sdata, &local->interfaces, list)
2264 sdata->user_power_level = local->user_power_level;
2265 list_for_each_entry(sdata, &local->interfaces, list)
2266 ieee80211_recalc_txpower(sdata);
2267 mutex_unlock(&local->iflist_mtx);
2268
2269 return 0;
2270}
2271
2272static int ieee80211_get_tx_power(struct wiphy *wiphy,
2273 struct wireless_dev *wdev,
2274 int *dbm)
2275{
2276 struct ieee80211_local *local = wiphy_priv(wiphy);
2277 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2278
2279 if (!local->use_chanctx)
2280 *dbm = local->hw.conf.power_level;
2281 else
2282 *dbm = sdata->vif.bss_conf.txpower;
2283
2284 return 0;
2285}
2286
2287static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2288 const u8 *addr)
2289{
2290 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2291
2292 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2293
2294 return 0;
2295}
2296
2297static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2298{
2299 struct ieee80211_local *local = wiphy_priv(wiphy);
2300
2301 drv_rfkill_poll(local);
2302}
2303
2304#ifdef CONFIG_NL80211_TESTMODE
2305static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2306 struct wireless_dev *wdev,
2307 void *data, int len)
2308{
2309 struct ieee80211_local *local = wiphy_priv(wiphy);
2310 struct ieee80211_vif *vif = NULL;
2311
2312 if (!local->ops->testmode_cmd)
2313 return -EOPNOTSUPP;
2314
2315 if (wdev) {
2316 struct ieee80211_sub_if_data *sdata;
2317
2318 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2319 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2320 vif = &sdata->vif;
2321 }
2322
2323 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2324}
2325
2326static int ieee80211_testmode_dump(struct wiphy *wiphy,
2327 struct sk_buff *skb,
2328 struct netlink_callback *cb,
2329 void *data, int len)
2330{
2331 struct ieee80211_local *local = wiphy_priv(wiphy);
2332
2333 if (!local->ops->testmode_dump)
2334 return -EOPNOTSUPP;
2335
2336 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2337}
2338#endif
2339
2340int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
2341 enum ieee80211_smps_mode smps_mode)
2342{
2343 const u8 *ap;
2344 enum ieee80211_smps_mode old_req;
2345 int err;
2346
2347 lockdep_assert_held(&sdata->wdev.mtx);
2348
2349 old_req = sdata->u.mgd.req_smps;
2350 sdata->u.mgd.req_smps = smps_mode;
2351
2352 if (old_req == smps_mode &&
2353 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2354 return 0;
2355
2356
2357
2358
2359
2360
2361 if (!sdata->u.mgd.associated ||
2362 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2363 return 0;
2364
2365 ap = sdata->u.mgd.associated->bssid;
2366
2367 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2368 if (sdata->u.mgd.powersave)
2369 smps_mode = IEEE80211_SMPS_DYNAMIC;
2370 else
2371 smps_mode = IEEE80211_SMPS_OFF;
2372 }
2373
2374
2375 err = ieee80211_send_smps_action(sdata, smps_mode,
2376 ap, ap);
2377 if (err)
2378 sdata->u.mgd.req_smps = old_req;
2379
2380 return err;
2381}
2382
2383static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2384 bool enabled, int timeout)
2385{
2386 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2387 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2388
2389 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
2390 sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
2391 return -EOPNOTSUPP;
2392
2393 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2394 return -EOPNOTSUPP;
2395
2396 if (enabled == sdata->u.mgd.powersave &&
2397 timeout == local->dynamic_ps_forced_timeout)
2398 return 0;
2399
2400 sdata->u.mgd.powersave = enabled;
2401 local->dynamic_ps_forced_timeout = timeout;
2402
2403
2404 sdata_lock(sdata);
2405 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
2406 sdata_unlock(sdata);
2407
2408 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2409 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2410
2411 ieee80211_recalc_ps(local, -1);
2412 ieee80211_recalc_ps_vif(sdata);
2413
2414 return 0;
2415}
2416
2417static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2418 struct net_device *dev,
2419 s32 rssi_thold, u32 rssi_hyst)
2420{
2421 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2422 struct ieee80211_vif *vif = &sdata->vif;
2423 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2424
2425 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2426 rssi_hyst == bss_conf->cqm_rssi_hyst)
2427 return 0;
2428
2429 bss_conf->cqm_rssi_thold = rssi_thold;
2430 bss_conf->cqm_rssi_hyst = rssi_hyst;
2431
2432
2433 if (sdata->u.mgd.associated &&
2434 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2435 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2436
2437 return 0;
2438}
2439
2440static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2441 struct net_device *dev,
2442 const u8 *addr,
2443 const struct cfg80211_bitrate_mask *mask)
2444{
2445 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2446 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2447 int i, ret;
2448
2449 if (!ieee80211_sdata_running(sdata))
2450 return -ENETDOWN;
2451
2452 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2453 ret = drv_set_bitrate_mask(local, sdata, mask);
2454 if (ret)
2455 return ret;
2456 }
2457
2458 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2459 struct ieee80211_supported_band *sband = wiphy->bands[i];
2460 int j;
2461
2462 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2463 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
2464 sizeof(mask->control[i].mcs));
2465
2466 sdata->rc_has_mcs_mask[i] = false;
2467 if (!sband)
2468 continue;
2469
2470 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2471 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2472 sdata->rc_has_mcs_mask[i] = true;
2473 break;
2474 }
2475 }
2476
2477 return 0;
2478}
2479
2480static int ieee80211_start_roc_work(struct ieee80211_local *local,
2481 struct ieee80211_sub_if_data *sdata,
2482 struct ieee80211_channel *channel,
2483 unsigned int duration, u64 *cookie,
2484 struct sk_buff *txskb,
2485 enum ieee80211_roc_type type)
2486{
2487 struct ieee80211_roc_work *roc, *tmp;
2488 bool queued = false;
2489 int ret;
2490
2491 lockdep_assert_held(&local->mtx);
2492
2493 if (local->use_chanctx && !local->ops->remain_on_channel)
2494 return -EOPNOTSUPP;
2495
2496 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2497 if (!roc)
2498 return -ENOMEM;
2499
2500 roc->chan = channel;
2501 roc->duration = duration;
2502 roc->req_duration = duration;
2503 roc->frame = txskb;
2504 roc->type = type;
2505 roc->mgmt_tx_cookie = (unsigned long)txskb;
2506 roc->sdata = sdata;
2507 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2508 INIT_LIST_HEAD(&roc->dependents);
2509
2510
2511 if (!list_empty(&local->roc_list) ||
2512 local->scanning || local->radar_detect_enabled)
2513 goto out_check_combine;
2514
2515
2516 if (!local->ops->remain_on_channel) {
2517 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2518 goto out_queue;
2519 }
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532 if (!duration)
2533 duration = 10;
2534
2535 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2536 if (ret) {
2537 kfree(roc);
2538 return ret;
2539 }
2540
2541 roc->started = true;
2542 goto out_queue;
2543
2544 out_check_combine:
2545 list_for_each_entry(tmp, &local->roc_list, list) {
2546 if (tmp->chan != channel || tmp->sdata != sdata)
2547 continue;
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557 if (!tmp->started) {
2558 list_add_tail(&roc->list, &tmp->dependents);
2559 tmp->duration = max(tmp->duration, roc->duration);
2560 tmp->type = max(tmp->type, roc->type);
2561 queued = true;
2562 break;
2563 }
2564
2565
2566 if (local->ops->remain_on_channel) {
2567 unsigned long j = jiffies;
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585 if (!tmp->hw_begun) {
2586 list_add_tail(&roc->list, &tmp->dependents);
2587 queued = true;
2588 break;
2589 }
2590
2591 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2592 tmp->hw_start_time +
2593 msecs_to_jiffies(tmp->duration))) {
2594 int new_dur;
2595
2596 ieee80211_handle_roc_started(roc);
2597
2598 new_dur = roc->duration -
2599 jiffies_to_msecs(tmp->hw_start_time +
2600 msecs_to_jiffies(
2601 tmp->duration) -
2602 j);
2603
2604 if (new_dur > 0) {
2605
2606 list_add(&roc->list, &tmp->list);
2607 } else {
2608 list_add_tail(&roc->list,
2609 &tmp->dependents);
2610 }
2611 queued = true;
2612 }
2613 } else if (del_timer_sync(&tmp->work.timer)) {
2614 unsigned long new_end;
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624 list_add_tail(&roc->list, &tmp->dependents);
2625 queued = true;
2626
2627 new_end = jiffies + msecs_to_jiffies(roc->duration);
2628
2629
2630 if (time_after(new_end, tmp->work.timer.expires))
2631 mod_timer(&tmp->work.timer, new_end);
2632 else
2633 add_timer(&tmp->work.timer);
2634
2635 ieee80211_handle_roc_started(roc);
2636 }
2637 break;
2638 }
2639
2640 out_queue:
2641 if (!queued)
2642 list_add_tail(&roc->list, &local->roc_list);
2643
2644
2645
2646
2647
2648 if (!txskb) {
2649
2650 local->roc_cookie_counter++;
2651 roc->cookie = local->roc_cookie_counter;
2652
2653 if (WARN_ON(roc->cookie == 0)) {
2654 roc->cookie = 1;
2655 local->roc_cookie_counter++;
2656 }
2657 *cookie = roc->cookie;
2658 } else {
2659 *cookie = (unsigned long)txskb;
2660 }
2661
2662 return 0;
2663}
2664
2665static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2666 struct wireless_dev *wdev,
2667 struct ieee80211_channel *chan,
2668 unsigned int duration,
2669 u64 *cookie)
2670{
2671 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2672 struct ieee80211_local *local = sdata->local;
2673 int ret;
2674
2675 mutex_lock(&local->mtx);
2676 ret = ieee80211_start_roc_work(local, sdata, chan,
2677 duration, cookie, NULL,
2678 IEEE80211_ROC_TYPE_NORMAL);
2679 mutex_unlock(&local->mtx);
2680
2681 return ret;
2682}
2683
2684static int ieee80211_cancel_roc(struct ieee80211_local *local,
2685 u64 cookie, bool mgmt_tx)
2686{
2687 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2688 int ret;
2689
2690 mutex_lock(&local->mtx);
2691 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2692 struct ieee80211_roc_work *dep, *tmp2;
2693
2694 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2695 if (!mgmt_tx && dep->cookie != cookie)
2696 continue;
2697 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2698 continue;
2699
2700 list_del(&dep->list);
2701 mutex_unlock(&local->mtx);
2702
2703 ieee80211_roc_notify_destroy(dep, true);
2704 return 0;
2705 }
2706
2707 if (!mgmt_tx && roc->cookie != cookie)
2708 continue;
2709 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2710 continue;
2711
2712 found = roc;
2713 break;
2714 }
2715
2716 if (!found) {
2717 mutex_unlock(&local->mtx);
2718 return -ENOENT;
2719 }
2720
2721
2722
2723
2724
2725
2726
2727
2728 if (local->ops->remain_on_channel) {
2729 if (found->started) {
2730 ret = drv_cancel_remain_on_channel(local);
2731 if (WARN_ON_ONCE(ret)) {
2732 mutex_unlock(&local->mtx);
2733 return ret;
2734 }
2735 }
2736
2737 list_del(&found->list);
2738
2739 if (found->started)
2740 ieee80211_start_next_roc(local);
2741 mutex_unlock(&local->mtx);
2742
2743 ieee80211_roc_notify_destroy(found, true);
2744 } else {
2745
2746 found->abort = true;
2747 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2748
2749 mutex_unlock(&local->mtx);
2750
2751
2752 flush_delayed_work(&found->work);
2753 WARN_ON(!found->to_be_freed);
2754 kfree(found);
2755 }
2756
2757 return 0;
2758}
2759
2760static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2761 struct wireless_dev *wdev,
2762 u64 cookie)
2763{
2764 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2765 struct ieee80211_local *local = sdata->local;
2766
2767 return ieee80211_cancel_roc(local, cookie, false);
2768}
2769
2770static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2771 struct net_device *dev,
2772 struct cfg80211_chan_def *chandef)
2773{
2774 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2775 struct ieee80211_local *local = sdata->local;
2776 unsigned long timeout;
2777 int err;
2778
2779 if (!list_empty(&local->roc_list) || local->scanning)
2780 return -EBUSY;
2781
2782
2783 sdata->smps_mode = IEEE80211_SMPS_OFF;
2784 sdata->needed_rx_chains = local->rx_chains;
2785 sdata->radar_required = true;
2786
2787 mutex_lock(&local->iflist_mtx);
2788 err = ieee80211_vif_use_channel(sdata, chandef,
2789 IEEE80211_CHANCTX_SHARED);
2790 mutex_unlock(&local->iflist_mtx);
2791 if (err)
2792 return err;
2793
2794 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2795 ieee80211_queue_delayed_work(&sdata->local->hw,
2796 &sdata->dfs_cac_timer_work, timeout);
2797
2798 return 0;
2799}
2800
2801static struct cfg80211_beacon_data *
2802cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2803{
2804 struct cfg80211_beacon_data *new_beacon;
2805 u8 *pos;
2806 int len;
2807
2808 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2809 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2810 beacon->probe_resp_len;
2811
2812 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2813 if (!new_beacon)
2814 return NULL;
2815
2816 pos = (u8 *)(new_beacon + 1);
2817 if (beacon->head_len) {
2818 new_beacon->head_len = beacon->head_len;
2819 new_beacon->head = pos;
2820 memcpy(pos, beacon->head, beacon->head_len);
2821 pos += beacon->head_len;
2822 }
2823 if (beacon->tail_len) {
2824 new_beacon->tail_len = beacon->tail_len;
2825 new_beacon->tail = pos;
2826 memcpy(pos, beacon->tail, beacon->tail_len);
2827 pos += beacon->tail_len;
2828 }
2829 if (beacon->beacon_ies_len) {
2830 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2831 new_beacon->beacon_ies = pos;
2832 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2833 pos += beacon->beacon_ies_len;
2834 }
2835 if (beacon->proberesp_ies_len) {
2836 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2837 new_beacon->proberesp_ies = pos;
2838 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2839 pos += beacon->proberesp_ies_len;
2840 }
2841 if (beacon->assocresp_ies_len) {
2842 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2843 new_beacon->assocresp_ies = pos;
2844 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2845 pos += beacon->assocresp_ies_len;
2846 }
2847 if (beacon->probe_resp_len) {
2848 new_beacon->probe_resp_len = beacon->probe_resp_len;
2849 beacon->probe_resp = pos;
2850 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2851 pos += beacon->probe_resp_len;
2852 }
2853
2854 return new_beacon;
2855}
2856
2857void ieee80211_csa_finalize_work(struct work_struct *work)
2858{
2859 struct ieee80211_sub_if_data *sdata =
2860 container_of(work, struct ieee80211_sub_if_data,
2861 csa_finalize_work);
2862 struct ieee80211_local *local = sdata->local;
2863 int err, changed;
2864
2865 if (!ieee80211_sdata_running(sdata))
2866 return;
2867
2868 if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_AP))
2869 return;
2870
2871 sdata->radar_required = sdata->csa_radar_required;
2872 err = ieee80211_vif_change_channel(sdata, &local->csa_chandef,
2873 &changed);
2874 if (WARN_ON(err < 0))
2875 return;
2876
2877 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
2878 if (err < 0)
2879 return;
2880
2881 changed |= err;
2882 kfree(sdata->u.ap.next_beacon);
2883 sdata->u.ap.next_beacon = NULL;
2884 sdata->vif.csa_active = false;
2885
2886 ieee80211_wake_queues_by_reason(&sdata->local->hw,
2887 IEEE80211_MAX_QUEUE_MAP,
2888 IEEE80211_QUEUE_STOP_REASON_CSA);
2889
2890 ieee80211_bss_info_change_notify(sdata, changed);
2891
2892 cfg80211_ch_switch_notify(sdata->dev, &local->csa_chandef);
2893}
2894
2895static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2896 struct cfg80211_csa_settings *params)
2897{
2898 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2899 struct ieee80211_local *local = sdata->local;
2900 struct ieee80211_chanctx_conf *chanctx_conf;
2901 struct ieee80211_chanctx *chanctx;
2902 int err, num_chanctx;
2903
2904 if (!list_empty(&local->roc_list) || local->scanning)
2905 return -EBUSY;
2906
2907 if (sdata->wdev.cac_started)
2908 return -EBUSY;
2909
2910 if (cfg80211_chandef_identical(¶ms->chandef,
2911 &sdata->vif.bss_conf.chandef))
2912 return -EINVAL;
2913
2914 rcu_read_lock();
2915 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2916 if (!chanctx_conf) {
2917 rcu_read_unlock();
2918 return -EBUSY;
2919 }
2920
2921
2922 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
2923 if (chanctx->refcount > 1) {
2924 rcu_read_unlock();
2925 return -EBUSY;
2926 }
2927 num_chanctx = 0;
2928 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
2929 num_chanctx++;
2930 rcu_read_unlock();
2931
2932 if (num_chanctx > 1)
2933 return -EBUSY;
2934
2935
2936 if (sdata->vif.csa_active)
2937 return -EBUSY;
2938
2939
2940 switch (sdata->vif.type) {
2941 case NL80211_IFTYPE_AP:
2942 break;
2943 default:
2944 return -EOPNOTSUPP;
2945 }
2946
2947 sdata->u.ap.next_beacon = cfg80211_beacon_dup(¶ms->beacon_after);
2948 if (!sdata->u.ap.next_beacon)
2949 return -ENOMEM;
2950
2951 sdata->csa_counter_offset_beacon = params->counter_offset_beacon;
2952 sdata->csa_counter_offset_presp = params->counter_offset_presp;
2953 sdata->csa_radar_required = params->radar_required;
2954
2955 if (params->block_tx)
2956 ieee80211_stop_queues_by_reason(&local->hw,
2957 IEEE80211_MAX_QUEUE_MAP,
2958 IEEE80211_QUEUE_STOP_REASON_CSA);
2959
2960 err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa);
2961 if (err < 0)
2962 return err;
2963
2964 local->csa_chandef = params->chandef;
2965 sdata->vif.csa_active = true;
2966
2967 ieee80211_bss_info_change_notify(sdata, err);
2968 drv_channel_switch_beacon(sdata, ¶ms->chandef);
2969
2970 return 0;
2971}
2972
2973static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
2974 struct ieee80211_channel *chan, bool offchan,
2975 unsigned int wait, const u8 *buf, size_t len,
2976 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
2977{
2978 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2979 struct ieee80211_local *local = sdata->local;
2980 struct sk_buff *skb;
2981 struct sta_info *sta;
2982 const struct ieee80211_mgmt *mgmt = (void *)buf;
2983 bool need_offchan = false;
2984 u32 flags;
2985 int ret;
2986
2987 if (dont_wait_for_ack)
2988 flags = IEEE80211_TX_CTL_NO_ACK;
2989 else
2990 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
2991 IEEE80211_TX_CTL_REQ_TX_STATUS;
2992
2993 if (no_cck)
2994 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
2995
2996 switch (sdata->vif.type) {
2997 case NL80211_IFTYPE_ADHOC:
2998 if (!sdata->vif.bss_conf.ibss_joined)
2999 need_offchan = true;
3000
3001#ifdef CONFIG_MAC80211_MESH
3002 case NL80211_IFTYPE_MESH_POINT:
3003 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3004 !sdata->u.mesh.mesh_id_len)
3005 need_offchan = true;
3006
3007#endif
3008 case NL80211_IFTYPE_AP:
3009 case NL80211_IFTYPE_AP_VLAN:
3010 case NL80211_IFTYPE_P2P_GO:
3011 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3012 !ieee80211_vif_is_mesh(&sdata->vif) &&
3013 !rcu_access_pointer(sdata->bss->beacon))
3014 need_offchan = true;
3015 if (!ieee80211_is_action(mgmt->frame_control) ||
3016 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3017 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED)
3018 break;
3019 rcu_read_lock();
3020 sta = sta_info_get(sdata, mgmt->da);
3021 rcu_read_unlock();
3022 if (!sta)
3023 return -ENOLINK;
3024 break;
3025 case NL80211_IFTYPE_STATION:
3026 case NL80211_IFTYPE_P2P_CLIENT:
3027 if (!sdata->u.mgd.associated)
3028 need_offchan = true;
3029 break;
3030 case NL80211_IFTYPE_P2P_DEVICE:
3031 need_offchan = true;
3032 break;
3033 default:
3034 return -EOPNOTSUPP;
3035 }
3036
3037
3038
3039
3040 if (need_offchan && !chan)
3041 return -EINVAL;
3042
3043 mutex_lock(&local->mtx);
3044
3045
3046 if (!need_offchan) {
3047 struct ieee80211_chanctx_conf *chanctx_conf;
3048
3049 rcu_read_lock();
3050 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3051
3052 if (chanctx_conf) {
3053 need_offchan = chan && (chan != chanctx_conf->def.chan);
3054 } else if (!chan) {
3055 ret = -EINVAL;
3056 rcu_read_unlock();
3057 goto out_unlock;
3058 } else {
3059 need_offchan = true;
3060 }
3061 rcu_read_unlock();
3062 }
3063
3064 if (need_offchan && !offchan) {
3065 ret = -EBUSY;
3066 goto out_unlock;
3067 }
3068
3069 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
3070 if (!skb) {
3071 ret = -ENOMEM;
3072 goto out_unlock;
3073 }
3074 skb_reserve(skb, local->hw.extra_tx_headroom);
3075
3076 memcpy(skb_put(skb, len), buf, len);
3077
3078 IEEE80211_SKB_CB(skb)->flags = flags;
3079
3080 skb->dev = sdata->dev;
3081
3082 if (!need_offchan) {
3083 *cookie = (unsigned long) skb;
3084 ieee80211_tx_skb(sdata, skb);
3085 ret = 0;
3086 goto out_unlock;
3087 }
3088
3089 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3090 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3091 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3092 IEEE80211_SKB_CB(skb)->hw_queue =
3093 local->hw.offchannel_tx_hw_queue;
3094
3095
3096 ret = ieee80211_start_roc_work(local, sdata, chan,
3097 wait, cookie, skb,
3098 IEEE80211_ROC_TYPE_MGMT_TX);
3099 if (ret)
3100 kfree_skb(skb);
3101 out_unlock:
3102 mutex_unlock(&local->mtx);
3103 return ret;
3104}
3105
3106static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3107 struct wireless_dev *wdev,
3108 u64 cookie)
3109{
3110 struct ieee80211_local *local = wiphy_priv(wiphy);
3111
3112 return ieee80211_cancel_roc(local, cookie, true);
3113}
3114
3115static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3116 struct wireless_dev *wdev,
3117 u16 frame_type, bool reg)
3118{
3119 struct ieee80211_local *local = wiphy_priv(wiphy);
3120
3121 switch (frame_type) {
3122 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3123 if (reg)
3124 local->probe_req_reg++;
3125 else
3126 local->probe_req_reg--;
3127
3128 if (!local->open_count)
3129 break;
3130
3131 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3132 break;
3133 default:
3134 break;
3135 }
3136}
3137
3138static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3139{
3140 struct ieee80211_local *local = wiphy_priv(wiphy);
3141
3142 if (local->started)
3143 return -EOPNOTSUPP;
3144
3145 return drv_set_antenna(local, tx_ant, rx_ant);
3146}
3147
3148static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3149{
3150 struct ieee80211_local *local = wiphy_priv(wiphy);
3151
3152 return drv_get_antenna(local, tx_ant, rx_ant);
3153}
3154
3155static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3156{
3157 struct ieee80211_local *local = wiphy_priv(wiphy);
3158
3159 return drv_set_ringparam(local, tx, rx);
3160}
3161
3162static void ieee80211_get_ringparam(struct wiphy *wiphy,
3163 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3164{
3165 struct ieee80211_local *local = wiphy_priv(wiphy);
3166
3167 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3168}
3169
3170static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3171 struct net_device *dev,
3172 struct cfg80211_gtk_rekey_data *data)
3173{
3174 struct ieee80211_local *local = wiphy_priv(wiphy);
3175 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3176
3177 if (!local->ops->set_rekey_data)
3178 return -EOPNOTSUPP;
3179
3180 drv_set_rekey_data(local, sdata, data);
3181
3182 return 0;
3183}
3184
3185static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3186{
3187 u8 *pos = (void *)skb_put(skb, 7);
3188
3189 *pos++ = WLAN_EID_EXT_CAPABILITY;
3190 *pos++ = 5;
3191 *pos++ = 0x0;
3192 *pos++ = 0x0;
3193 *pos++ = 0x0;
3194 *pos++ = 0x0;
3195 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3196}
3197
3198static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3199{
3200 struct ieee80211_local *local = sdata->local;
3201 u16 capab;
3202
3203 capab = 0;
3204 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
3205 return capab;
3206
3207 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3208 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3209 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3210 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3211
3212 return capab;
3213}
3214
3215static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3216 u8 *peer, u8 *bssid)
3217{
3218 struct ieee80211_tdls_lnkie *lnkid;
3219
3220 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3221
3222 lnkid->ie_type = WLAN_EID_LINK_ID;
3223 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3224
3225 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3226 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3227 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3228}
3229
3230static int
3231ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3232 u8 *peer, u8 action_code, u8 dialog_token,
3233 u16 status_code, struct sk_buff *skb)
3234{
3235 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3236 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3237 struct ieee80211_tdls_data *tf;
3238
3239 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3240
3241 memcpy(tf->da, peer, ETH_ALEN);
3242 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3243 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3244 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3245
3246 switch (action_code) {
3247 case WLAN_TDLS_SETUP_REQUEST:
3248 tf->category = WLAN_CATEGORY_TDLS;
3249 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3250
3251 skb_put(skb, sizeof(tf->u.setup_req));
3252 tf->u.setup_req.dialog_token = dialog_token;
3253 tf->u.setup_req.capability =
3254 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3255
3256 ieee80211_add_srates_ie(sdata, skb, false, band);
3257 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3258 ieee80211_tdls_add_ext_capab(skb);
3259 break;
3260 case WLAN_TDLS_SETUP_RESPONSE:
3261 tf->category = WLAN_CATEGORY_TDLS;
3262 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3263
3264 skb_put(skb, sizeof(tf->u.setup_resp));
3265 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3266 tf->u.setup_resp.dialog_token = dialog_token;
3267 tf->u.setup_resp.capability =
3268 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3269
3270 ieee80211_add_srates_ie(sdata, skb, false, band);
3271 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3272 ieee80211_tdls_add_ext_capab(skb);
3273 break;
3274 case WLAN_TDLS_SETUP_CONFIRM:
3275 tf->category = WLAN_CATEGORY_TDLS;
3276 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3277
3278 skb_put(skb, sizeof(tf->u.setup_cfm));
3279 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3280 tf->u.setup_cfm.dialog_token = dialog_token;
3281 break;
3282 case WLAN_TDLS_TEARDOWN:
3283 tf->category = WLAN_CATEGORY_TDLS;
3284 tf->action_code = WLAN_TDLS_TEARDOWN;
3285
3286 skb_put(skb, sizeof(tf->u.teardown));
3287 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3288 break;
3289 case WLAN_TDLS_DISCOVERY_REQUEST:
3290 tf->category = WLAN_CATEGORY_TDLS;
3291 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3292
3293 skb_put(skb, sizeof(tf->u.discover_req));
3294 tf->u.discover_req.dialog_token = dialog_token;
3295 break;
3296 default:
3297 return -EINVAL;
3298 }
3299
3300 return 0;
3301}
3302
3303static int
3304ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3305 u8 *peer, u8 action_code, u8 dialog_token,
3306 u16 status_code, struct sk_buff *skb)
3307{
3308 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3309 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3310 struct ieee80211_mgmt *mgmt;
3311
3312 mgmt = (void *)skb_put(skb, 24);
3313 memset(mgmt, 0, 24);
3314 memcpy(mgmt->da, peer, ETH_ALEN);
3315 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3316 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3317
3318 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3319 IEEE80211_STYPE_ACTION);
3320
3321 switch (action_code) {
3322 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3323 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3324 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3325 mgmt->u.action.u.tdls_discover_resp.action_code =
3326 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3327 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3328 dialog_token;
3329 mgmt->u.action.u.tdls_discover_resp.capability =
3330 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3331
3332 ieee80211_add_srates_ie(sdata, skb, false, band);
3333 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3334 ieee80211_tdls_add_ext_capab(skb);
3335 break;
3336 default:
3337 return -EINVAL;
3338 }
3339
3340 return 0;
3341}
3342
3343static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3344 u8 *peer, u8 action_code, u8 dialog_token,
3345 u16 status_code, const u8 *extra_ies,
3346 size_t extra_ies_len)
3347{
3348 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3349 struct ieee80211_local *local = sdata->local;
3350 struct sk_buff *skb = NULL;
3351 bool send_direct;
3352 int ret;
3353
3354 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3355 return -ENOTSUPP;
3356
3357
3358 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3359 !sdata->u.mgd.associated)
3360 return -EINVAL;
3361
3362 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3363 action_code, peer);
3364
3365 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3366 max(sizeof(struct ieee80211_mgmt),
3367 sizeof(struct ieee80211_tdls_data)) +
3368 50 +
3369 7 +
3370 extra_ies_len +
3371 sizeof(struct ieee80211_tdls_lnkie));
3372 if (!skb)
3373 return -ENOMEM;
3374
3375 skb_reserve(skb, local->hw.extra_tx_headroom);
3376
3377 switch (action_code) {
3378 case WLAN_TDLS_SETUP_REQUEST:
3379 case WLAN_TDLS_SETUP_RESPONSE:
3380 case WLAN_TDLS_SETUP_CONFIRM:
3381 case WLAN_TDLS_TEARDOWN:
3382 case WLAN_TDLS_DISCOVERY_REQUEST:
3383 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3384 action_code, dialog_token,
3385 status_code, skb);
3386 send_direct = false;
3387 break;
3388 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3389 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3390 dialog_token, status_code,
3391 skb);
3392 send_direct = true;
3393 break;
3394 default:
3395 ret = -ENOTSUPP;
3396 break;
3397 }
3398
3399 if (ret < 0)
3400 goto fail;
3401
3402 if (extra_ies_len)
3403 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3404
3405
3406 switch (action_code) {
3407 case WLAN_TDLS_SETUP_REQUEST:
3408 case WLAN_TDLS_SETUP_CONFIRM:
3409 case WLAN_TDLS_TEARDOWN:
3410 case WLAN_TDLS_DISCOVERY_REQUEST:
3411
3412 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3413 sdata->u.mgd.bssid);
3414 break;
3415 case WLAN_TDLS_SETUP_RESPONSE:
3416 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3417
3418 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3419 sdata->u.mgd.bssid);
3420 break;
3421 default:
3422 ret = -ENOTSUPP;
3423 goto fail;
3424 }
3425
3426 if (send_direct) {
3427 ieee80211_tx_skb(sdata, skb);
3428 return 0;
3429 }
3430
3431
3432
3433
3434
3435 switch (action_code) {
3436 case WLAN_TDLS_SETUP_REQUEST:
3437 case WLAN_TDLS_SETUP_RESPONSE:
3438 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3439 skb->priority = 2;
3440 break;
3441 default:
3442 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3443 skb->priority = 5;
3444 break;
3445 }
3446
3447
3448 local_bh_disable();
3449 ret = ieee80211_subif_start_xmit(skb, dev);
3450 local_bh_enable();
3451
3452 return ret;
3453
3454fail:
3455 dev_kfree_skb(skb);
3456 return ret;
3457}
3458
3459static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3460 u8 *peer, enum nl80211_tdls_operation oper)
3461{
3462 struct sta_info *sta;
3463 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3464
3465 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3466 return -ENOTSUPP;
3467
3468 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3469 return -EINVAL;
3470
3471 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3472
3473 switch (oper) {
3474 case NL80211_TDLS_ENABLE_LINK:
3475 rcu_read_lock();
3476 sta = sta_info_get(sdata, peer);
3477 if (!sta) {
3478 rcu_read_unlock();
3479 return -ENOLINK;
3480 }
3481
3482 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3483 rcu_read_unlock();
3484 break;
3485 case NL80211_TDLS_DISABLE_LINK:
3486 return sta_info_destroy_addr(sdata, peer);
3487 case NL80211_TDLS_TEARDOWN:
3488 case NL80211_TDLS_SETUP:
3489 case NL80211_TDLS_DISCOVERY_REQ:
3490
3491 return -ENOTSUPP;
3492 default:
3493 return -ENOTSUPP;
3494 }
3495
3496 return 0;
3497}
3498
3499static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3500 const u8 *peer, u64 *cookie)
3501{
3502 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3503 struct ieee80211_local *local = sdata->local;
3504 struct ieee80211_qos_hdr *nullfunc;
3505 struct sk_buff *skb;
3506 int size = sizeof(*nullfunc);
3507 __le16 fc;
3508 bool qos;
3509 struct ieee80211_tx_info *info;
3510 struct sta_info *sta;
3511 struct ieee80211_chanctx_conf *chanctx_conf;
3512 enum ieee80211_band band;
3513
3514 rcu_read_lock();
3515 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3516 if (WARN_ON(!chanctx_conf)) {
3517 rcu_read_unlock();
3518 return -EINVAL;
3519 }
3520 band = chanctx_conf->def.chan->band;
3521 sta = sta_info_get_bss(sdata, peer);
3522 if (sta) {
3523 qos = test_sta_flag(sta, WLAN_STA_WME);
3524 } else {
3525 rcu_read_unlock();
3526 return -ENOLINK;
3527 }
3528
3529 if (qos) {
3530 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3531 IEEE80211_STYPE_QOS_NULLFUNC |
3532 IEEE80211_FCTL_FROMDS);
3533 } else {
3534 size -= 2;
3535 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3536 IEEE80211_STYPE_NULLFUNC |
3537 IEEE80211_FCTL_FROMDS);
3538 }
3539
3540 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3541 if (!skb) {
3542 rcu_read_unlock();
3543 return -ENOMEM;
3544 }
3545
3546 skb->dev = dev;
3547
3548 skb_reserve(skb, local->hw.extra_tx_headroom);
3549
3550 nullfunc = (void *) skb_put(skb, size);
3551 nullfunc->frame_control = fc;
3552 nullfunc->duration_id = 0;
3553 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3554 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3555 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3556 nullfunc->seq_ctrl = 0;
3557
3558 info = IEEE80211_SKB_CB(skb);
3559
3560 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3561 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3562
3563 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3564 skb->priority = 7;
3565 if (qos)
3566 nullfunc->qos_ctrl = cpu_to_le16(7);
3567
3568 local_bh_disable();
3569 ieee80211_xmit(sdata, skb, band);
3570 local_bh_enable();
3571 rcu_read_unlock();
3572
3573 *cookie = (unsigned long) skb;
3574 return 0;
3575}
3576
3577static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3578 struct wireless_dev *wdev,
3579 struct cfg80211_chan_def *chandef)
3580{
3581 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3582 struct ieee80211_local *local = wiphy_priv(wiphy);
3583 struct ieee80211_chanctx_conf *chanctx_conf;
3584 int ret = -ENODATA;
3585
3586 rcu_read_lock();
3587 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3588 if (chanctx_conf) {
3589 *chandef = chanctx_conf->def;
3590 ret = 0;
3591 } else if (local->open_count > 0 &&
3592 local->open_count == local->monitors &&
3593 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3594 if (local->use_chanctx)
3595 *chandef = local->monitor_chandef;
3596 else
3597 *chandef = local->_oper_chandef;
3598 ret = 0;
3599 }
3600 rcu_read_unlock();
3601
3602 return ret;
3603}
3604
3605#ifdef CONFIG_PM
3606static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3607{
3608 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3609}
3610#endif
3611
3612struct cfg80211_ops mac80211_config_ops = {
3613 .add_virtual_intf = ieee80211_add_iface,
3614 .del_virtual_intf = ieee80211_del_iface,
3615 .change_virtual_intf = ieee80211_change_iface,
3616 .start_p2p_device = ieee80211_start_p2p_device,
3617 .stop_p2p_device = ieee80211_stop_p2p_device,
3618 .add_key = ieee80211_add_key,
3619 .del_key = ieee80211_del_key,
3620 .get_key = ieee80211_get_key,
3621 .set_default_key = ieee80211_config_default_key,
3622 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3623 .start_ap = ieee80211_start_ap,
3624 .change_beacon = ieee80211_change_beacon,
3625 .stop_ap = ieee80211_stop_ap,
3626 .add_station = ieee80211_add_station,
3627 .del_station = ieee80211_del_station,
3628 .change_station = ieee80211_change_station,
3629 .get_station = ieee80211_get_station,
3630 .dump_station = ieee80211_dump_station,
3631 .dump_survey = ieee80211_dump_survey,
3632#ifdef CONFIG_MAC80211_MESH
3633 .add_mpath = ieee80211_add_mpath,
3634 .del_mpath = ieee80211_del_mpath,
3635 .change_mpath = ieee80211_change_mpath,
3636 .get_mpath = ieee80211_get_mpath,
3637 .dump_mpath = ieee80211_dump_mpath,
3638 .update_mesh_config = ieee80211_update_mesh_config,
3639 .get_mesh_config = ieee80211_get_mesh_config,
3640 .join_mesh = ieee80211_join_mesh,
3641 .leave_mesh = ieee80211_leave_mesh,
3642#endif
3643 .change_bss = ieee80211_change_bss,
3644 .set_txq_params = ieee80211_set_txq_params,
3645 .set_monitor_channel = ieee80211_set_monitor_channel,
3646 .suspend = ieee80211_suspend,
3647 .resume = ieee80211_resume,
3648 .scan = ieee80211_scan,
3649 .sched_scan_start = ieee80211_sched_scan_start,
3650 .sched_scan_stop = ieee80211_sched_scan_stop,
3651 .auth = ieee80211_auth,
3652 .assoc = ieee80211_assoc,
3653 .deauth = ieee80211_deauth,
3654 .disassoc = ieee80211_disassoc,
3655 .join_ibss = ieee80211_join_ibss,
3656 .leave_ibss = ieee80211_leave_ibss,
3657 .set_mcast_rate = ieee80211_set_mcast_rate,
3658 .set_wiphy_params = ieee80211_set_wiphy_params,
3659 .set_tx_power = ieee80211_set_tx_power,
3660 .get_tx_power = ieee80211_get_tx_power,
3661 .set_wds_peer = ieee80211_set_wds_peer,
3662 .rfkill_poll = ieee80211_rfkill_poll,
3663 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3664 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3665 .set_power_mgmt = ieee80211_set_power_mgmt,
3666 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3667 .remain_on_channel = ieee80211_remain_on_channel,
3668 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3669 .mgmt_tx = ieee80211_mgmt_tx,
3670 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3671 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3672 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3673 .set_antenna = ieee80211_set_antenna,
3674 .get_antenna = ieee80211_get_antenna,
3675 .set_ringparam = ieee80211_set_ringparam,
3676 .get_ringparam = ieee80211_get_ringparam,
3677 .set_rekey_data = ieee80211_set_rekey_data,
3678 .tdls_oper = ieee80211_tdls_oper,
3679 .tdls_mgmt = ieee80211_tdls_mgmt,
3680 .probe_client = ieee80211_probe_client,
3681 .set_noack_map = ieee80211_set_noack_map,
3682#ifdef CONFIG_PM
3683 .set_wakeup = ieee80211_set_wakeup,
3684#endif
3685 .get_et_sset_count = ieee80211_get_et_sset_count,
3686 .get_et_stats = ieee80211_get_et_stats,
3687 .get_et_strings = ieee80211_get_et_strings,
3688 .get_channel = ieee80211_cfg_get_channel,
3689 .start_radar_detection = ieee80211_start_radar_detection,
3690 .channel_switch = ieee80211_channel_switch,
3691};
3692
