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8b790e7b221eacfa9239d0d1da1285184b1354cd
[deliverable/linux.git] / net / mac80211 / cfg.c
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
9 #include <linux/ieee80211.h>
10 #include <linux/nl80211.h>
11 #include <linux/rtnetlink.h>
12 #include <linux/slab.h>
13 #include <net/net_namespace.h>
14 #include <linux/rcupdate.h>
15 #include <linux/if_ether.h>
16 #include <net/cfg80211.h>
17 #include "ieee80211_i.h"
18 #include "driver-ops.h"
19 #include "cfg.h"
20 #include "rate.h"
21 #include "mesh.h"
22
23 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
28 {
29 struct ieee80211_local *local = wiphy_priv(wiphy);
30 struct wireless_dev *wdev;
31 struct ieee80211_sub_if_data *sdata;
32 int err;
33
34 err = ieee80211_if_add(local, name, &wdev, type, params);
35 if (err)
36 return ERR_PTR(err);
37
38 if (type == NL80211_IFTYPE_MONITOR && flags) {
39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
40 sdata->u.mntr_flags = *flags;
41 }
42
43 return wdev;
44 }
45
46 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
47 {
48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
49
50 return 0;
51 }
52
53 static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
57 {
58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
59 int ret;
60
61 ret = ieee80211_if_change_type(sdata, type);
62 if (ret)
63 return ret;
64
65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
74
75 if (ieee80211_sdata_running(sdata)) {
76 u32 mask = MONITOR_FLAG_COOK_FRAMES |
77 MONITOR_FLAG_ACTIVE;
78
79 /*
80 * Prohibit MONITOR_FLAG_COOK_FRAMES and
81 * MONITOR_FLAG_ACTIVE to be changed while the
82 * interface is up.
83 * Else we would need to add a lot of cruft
84 * to update everything:
85 * cooked_mntrs, monitor and all fif_* counters
86 * reconfigure hardware
87 */
88 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
89 return -EBUSY;
90
91 ieee80211_adjust_monitor_flags(sdata, -1);
92 sdata->u.mntr_flags = *flags;
93 ieee80211_adjust_monitor_flags(sdata, 1);
94
95 ieee80211_configure_filter(local);
96 } else {
97 /*
98 * Because the interface is down, ieee80211_do_stop
99 * and ieee80211_do_open take care of "everything"
100 * mentioned in the comment above.
101 */
102 sdata->u.mntr_flags = *flags;
103 }
104 }
105
106 return 0;
107 }
108
109 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
110 struct wireless_dev *wdev)
111 {
112 return ieee80211_do_open(wdev, true);
113 }
114
115 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
116 struct wireless_dev *wdev)
117 {
118 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
119 }
120
121 static int ieee80211_set_noack_map(struct wiphy *wiphy,
122 struct net_device *dev,
123 u16 noack_map)
124 {
125 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
126
127 sdata->noack_map = noack_map;
128 return 0;
129 }
130
131 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
132 u8 key_idx, bool pairwise, const u8 *mac_addr,
133 struct key_params *params)
134 {
135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
136 struct ieee80211_local *local = sdata->local;
137 struct sta_info *sta = NULL;
138 const struct ieee80211_cipher_scheme *cs = NULL;
139 struct ieee80211_key *key;
140 int err;
141
142 if (!ieee80211_sdata_running(sdata))
143 return -ENETDOWN;
144
145 /* reject WEP and TKIP keys if WEP failed to initialize */
146 switch (params->cipher) {
147 case WLAN_CIPHER_SUITE_WEP40:
148 case WLAN_CIPHER_SUITE_TKIP:
149 case WLAN_CIPHER_SUITE_WEP104:
150 if (IS_ERR(local->wep_tx_tfm))
151 return -EINVAL;
152 break;
153 case WLAN_CIPHER_SUITE_CCMP:
154 case WLAN_CIPHER_SUITE_AES_CMAC:
155 case WLAN_CIPHER_SUITE_GCMP:
156 break;
157 default:
158 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
159 break;
160 }
161
162 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
163 params->key, params->seq_len, params->seq,
164 cs);
165 if (IS_ERR(key))
166 return PTR_ERR(key);
167
168 if (pairwise)
169 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
170
171 mutex_lock(&local->sta_mtx);
172
173 if (mac_addr) {
174 if (ieee80211_vif_is_mesh(&sdata->vif))
175 sta = sta_info_get(sdata, mac_addr);
176 else
177 sta = sta_info_get_bss(sdata, mac_addr);
178 /*
179 * The ASSOC test makes sure the driver is ready to
180 * receive the key. When wpa_supplicant has roamed
181 * using FT, it attempts to set the key before
182 * association has completed, this rejects that attempt
183 * so it will set the key again after assocation.
184 *
185 * TODO: accept the key if we have a station entry and
186 * add it to the device after the station.
187 */
188 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
189 ieee80211_key_free_unused(key);
190 err = -ENOENT;
191 goto out_unlock;
192 }
193 }
194
195 switch (sdata->vif.type) {
196 case NL80211_IFTYPE_STATION:
197 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
198 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
199 break;
200 case NL80211_IFTYPE_AP:
201 case NL80211_IFTYPE_AP_VLAN:
202 /* Keys without a station are used for TX only */
203 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
204 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
205 break;
206 case NL80211_IFTYPE_ADHOC:
207 /* no MFP (yet) */
208 break;
209 case NL80211_IFTYPE_MESH_POINT:
210 #ifdef CONFIG_MAC80211_MESH
211 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
212 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
213 break;
214 #endif
215 case NL80211_IFTYPE_WDS:
216 case NL80211_IFTYPE_MONITOR:
217 case NL80211_IFTYPE_P2P_DEVICE:
218 case NL80211_IFTYPE_UNSPECIFIED:
219 case NUM_NL80211_IFTYPES:
220 case NL80211_IFTYPE_P2P_CLIENT:
221 case NL80211_IFTYPE_P2P_GO:
222 /* shouldn't happen */
223 WARN_ON_ONCE(1);
224 break;
225 }
226
227 if (sta)
228 sta->cipher_scheme = cs;
229
230 err = ieee80211_key_link(key, sdata, sta);
231
232 out_unlock:
233 mutex_unlock(&local->sta_mtx);
234
235 return err;
236 }
237
238 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
239 u8 key_idx, bool pairwise, const u8 *mac_addr)
240 {
241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
242 struct ieee80211_local *local = sdata->local;
243 struct sta_info *sta;
244 struct ieee80211_key *key = NULL;
245 int ret;
246
247 mutex_lock(&local->sta_mtx);
248 mutex_lock(&local->key_mtx);
249
250 if (mac_addr) {
251 ret = -ENOENT;
252
253 sta = sta_info_get_bss(sdata, mac_addr);
254 if (!sta)
255 goto out_unlock;
256
257 if (pairwise)
258 key = key_mtx_dereference(local, sta->ptk[key_idx]);
259 else
260 key = key_mtx_dereference(local, sta->gtk[key_idx]);
261 } else
262 key = key_mtx_dereference(local, sdata->keys[key_idx]);
263
264 if (!key) {
265 ret = -ENOENT;
266 goto out_unlock;
267 }
268
269 ieee80211_key_free(key, true);
270
271 ret = 0;
272 out_unlock:
273 mutex_unlock(&local->key_mtx);
274 mutex_unlock(&local->sta_mtx);
275
276 return ret;
277 }
278
279 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
280 u8 key_idx, bool pairwise, const u8 *mac_addr,
281 void *cookie,
282 void (*callback)(void *cookie,
283 struct key_params *params))
284 {
285 struct ieee80211_sub_if_data *sdata;
286 struct sta_info *sta = NULL;
287 u8 seq[6] = {0};
288 struct key_params params;
289 struct ieee80211_key *key = NULL;
290 u64 pn64;
291 u32 iv32;
292 u16 iv16;
293 int err = -ENOENT;
294
295 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
296
297 rcu_read_lock();
298
299 if (mac_addr) {
300 sta = sta_info_get_bss(sdata, mac_addr);
301 if (!sta)
302 goto out;
303
304 if (pairwise)
305 key = rcu_dereference(sta->ptk[key_idx]);
306 else if (key_idx < NUM_DEFAULT_KEYS)
307 key = rcu_dereference(sta->gtk[key_idx]);
308 } else
309 key = rcu_dereference(sdata->keys[key_idx]);
310
311 if (!key)
312 goto out;
313
314 memset(&params, 0, sizeof(params));
315
316 params.cipher = key->conf.cipher;
317
318 switch (key->conf.cipher) {
319 case WLAN_CIPHER_SUITE_TKIP:
320 iv32 = key->u.tkip.tx.iv32;
321 iv16 = key->u.tkip.tx.iv16;
322
323 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
324 drv_get_tkip_seq(sdata->local,
325 key->conf.hw_key_idx,
326 &iv32, &iv16);
327
328 seq[0] = iv16 & 0xff;
329 seq[1] = (iv16 >> 8) & 0xff;
330 seq[2] = iv32 & 0xff;
331 seq[3] = (iv32 >> 8) & 0xff;
332 seq[4] = (iv32 >> 16) & 0xff;
333 seq[5] = (iv32 >> 24) & 0xff;
334 params.seq = seq;
335 params.seq_len = 6;
336 break;
337 case WLAN_CIPHER_SUITE_CCMP:
338 pn64 = atomic64_read(&key->u.ccmp.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 case WLAN_CIPHER_SUITE_AES_CMAC:
349 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
350 seq[0] = pn64;
351 seq[1] = pn64 >> 8;
352 seq[2] = pn64 >> 16;
353 seq[3] = pn64 >> 24;
354 seq[4] = pn64 >> 32;
355 seq[5] = pn64 >> 40;
356 params.seq = seq;
357 params.seq_len = 6;
358 break;
359 }
360
361 params.key = key->conf.key;
362 params.key_len = key->conf.keylen;
363
364 callback(cookie, &params);
365 err = 0;
366
367 out:
368 rcu_read_unlock();
369 return err;
370 }
371
372 static int ieee80211_config_default_key(struct wiphy *wiphy,
373 struct net_device *dev,
374 u8 key_idx, bool uni,
375 bool multi)
376 {
377 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
378
379 ieee80211_set_default_key(sdata, key_idx, uni, multi);
380
381 return 0;
382 }
383
384 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
385 struct net_device *dev,
386 u8 key_idx)
387 {
388 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
389
390 ieee80211_set_default_mgmt_key(sdata, key_idx);
391
392 return 0;
393 }
394
395 void sta_set_rate_info_tx(struct sta_info *sta,
396 const struct ieee80211_tx_rate *rate,
397 struct rate_info *rinfo)
398 {
399 rinfo->flags = 0;
400 if (rate->flags & IEEE80211_TX_RC_MCS) {
401 rinfo->flags |= RATE_INFO_FLAGS_MCS;
402 rinfo->mcs = rate->idx;
403 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
404 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
405 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
406 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
407 } else {
408 struct ieee80211_supported_band *sband;
409 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
410 u16 brate;
411
412 sband = sta->local->hw.wiphy->bands[
413 ieee80211_get_sdata_band(sta->sdata)];
414 brate = sband->bitrates[rate->idx].bitrate;
415 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
416 }
417 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
418 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
419 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
420 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
421 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
422 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
423 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
424 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
425 }
426
427 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
428 {
429 rinfo->flags = 0;
430
431 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
432 rinfo->flags |= RATE_INFO_FLAGS_MCS;
433 rinfo->mcs = sta->last_rx_rate_idx;
434 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
435 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
436 rinfo->nss = sta->last_rx_rate_vht_nss;
437 rinfo->mcs = sta->last_rx_rate_idx;
438 } else {
439 struct ieee80211_supported_band *sband;
440 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
441 u16 brate;
442
443 sband = sta->local->hw.wiphy->bands[
444 ieee80211_get_sdata_band(sta->sdata)];
445 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
446 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
447 }
448
449 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
450 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
451 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
452 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
453 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
454 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
455 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
456 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
457 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
458 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
459 }
460
461 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
462 {
463 struct ieee80211_sub_if_data *sdata = sta->sdata;
464 struct ieee80211_local *local = sdata->local;
465 struct timespec uptime;
466 u64 packets = 0;
467 int i, ac;
468
469 sinfo->generation = sdata->local->sta_generation;
470
471 sinfo->filled = STATION_INFO_INACTIVE_TIME |
472 STATION_INFO_RX_BYTES64 |
473 STATION_INFO_TX_BYTES64 |
474 STATION_INFO_RX_PACKETS |
475 STATION_INFO_TX_PACKETS |
476 STATION_INFO_TX_RETRIES |
477 STATION_INFO_TX_FAILED |
478 STATION_INFO_TX_BITRATE |
479 STATION_INFO_RX_BITRATE |
480 STATION_INFO_RX_DROP_MISC |
481 STATION_INFO_BSS_PARAM |
482 STATION_INFO_CONNECTED_TIME |
483 STATION_INFO_STA_FLAGS |
484 STATION_INFO_BEACON_LOSS_COUNT;
485
486 do_posix_clock_monotonic_gettime(&uptime);
487 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
488
489 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
490 sinfo->tx_bytes = 0;
491 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
492 sinfo->tx_bytes += sta->tx_bytes[ac];
493 packets += sta->tx_packets[ac];
494 }
495 sinfo->tx_packets = packets;
496 sinfo->rx_bytes = sta->rx_bytes;
497 sinfo->rx_packets = sta->rx_packets;
498 sinfo->tx_retries = sta->tx_retry_count;
499 sinfo->tx_failed = sta->tx_retry_failed;
500 sinfo->rx_dropped_misc = sta->rx_dropped;
501 sinfo->beacon_loss_count = sta->beacon_loss_count;
502
503 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
504 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
505 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
506 if (!local->ops->get_rssi ||
507 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
508 sinfo->signal = (s8)sta->last_signal;
509 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
510 }
511 if (sta->chains) {
512 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
513 STATION_INFO_CHAIN_SIGNAL_AVG;
514
515 sinfo->chains = sta->chains;
516 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
517 sinfo->chain_signal[i] = sta->chain_signal_last[i];
518 sinfo->chain_signal_avg[i] =
519 (s8) -ewma_read(&sta->chain_signal_avg[i]);
520 }
521 }
522
523 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
524 sta_set_rate_info_rx(sta, &sinfo->rxrate);
525
526 if (ieee80211_vif_is_mesh(&sdata->vif)) {
527 #ifdef CONFIG_MAC80211_MESH
528 sinfo->filled |= STATION_INFO_LLID |
529 STATION_INFO_PLID |
530 STATION_INFO_PLINK_STATE |
531 STATION_INFO_LOCAL_PM |
532 STATION_INFO_PEER_PM |
533 STATION_INFO_NONPEER_PM;
534
535 sinfo->llid = sta->llid;
536 sinfo->plid = sta->plid;
537 sinfo->plink_state = sta->plink_state;
538 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
539 sinfo->filled |= STATION_INFO_T_OFFSET;
540 sinfo->t_offset = sta->t_offset;
541 }
542 sinfo->local_pm = sta->local_pm;
543 sinfo->peer_pm = sta->peer_pm;
544 sinfo->nonpeer_pm = sta->nonpeer_pm;
545 #endif
546 }
547
548 sinfo->bss_param.flags = 0;
549 if (sdata->vif.bss_conf.use_cts_prot)
550 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
551 if (sdata->vif.bss_conf.use_short_preamble)
552 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
553 if (sdata->vif.bss_conf.use_short_slot)
554 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
555 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
556 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
557
558 sinfo->sta_flags.set = 0;
559 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
560 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
561 BIT(NL80211_STA_FLAG_WME) |
562 BIT(NL80211_STA_FLAG_MFP) |
563 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
564 BIT(NL80211_STA_FLAG_ASSOCIATED) |
565 BIT(NL80211_STA_FLAG_TDLS_PEER);
566 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
567 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
568 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
569 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
570 if (test_sta_flag(sta, WLAN_STA_WME))
571 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
572 if (test_sta_flag(sta, WLAN_STA_MFP))
573 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
574 if (test_sta_flag(sta, WLAN_STA_AUTH))
575 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
576 if (test_sta_flag(sta, WLAN_STA_ASSOC))
577 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
578 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
579 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
580 }
581
582 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
583 "rx_packets", "rx_bytes", "wep_weak_iv_count",
584 "rx_duplicates", "rx_fragments", "rx_dropped",
585 "tx_packets", "tx_bytes", "tx_fragments",
586 "tx_filtered", "tx_retry_failed", "tx_retries",
587 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
588 "channel", "noise", "ch_time", "ch_time_busy",
589 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
590 };
591 #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
592
593 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
594 struct net_device *dev,
595 int sset)
596 {
597 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
598 int rv = 0;
599
600 if (sset == ETH_SS_STATS)
601 rv += STA_STATS_LEN;
602
603 rv += drv_get_et_sset_count(sdata, sset);
604
605 if (rv == 0)
606 return -EOPNOTSUPP;
607 return rv;
608 }
609
610 static void ieee80211_get_et_stats(struct wiphy *wiphy,
611 struct net_device *dev,
612 struct ethtool_stats *stats,
613 u64 *data)
614 {
615 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
616 struct ieee80211_chanctx_conf *chanctx_conf;
617 struct ieee80211_channel *channel;
618 struct sta_info *sta;
619 struct ieee80211_local *local = sdata->local;
620 struct station_info sinfo;
621 struct survey_info survey;
622 int i, q;
623 #define STA_STATS_SURVEY_LEN 7
624
625 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
626
627 #define ADD_STA_STATS(sta) \
628 do { \
629 data[i++] += sta->rx_packets; \
630 data[i++] += sta->rx_bytes; \
631 data[i++] += sta->wep_weak_iv_count; \
632 data[i++] += sta->num_duplicates; \
633 data[i++] += sta->rx_fragments; \
634 data[i++] += sta->rx_dropped; \
635 \
636 data[i++] += sinfo.tx_packets; \
637 data[i++] += sinfo.tx_bytes; \
638 data[i++] += sta->tx_fragments; \
639 data[i++] += sta->tx_filtered_count; \
640 data[i++] += sta->tx_retry_failed; \
641 data[i++] += sta->tx_retry_count; \
642 data[i++] += sta->beacon_loss_count; \
643 } while (0)
644
645 /* For Managed stations, find the single station based on BSSID
646 * and use that. For interface types, iterate through all available
647 * stations and add stats for any station that is assigned to this
648 * network device.
649 */
650
651 mutex_lock(&local->sta_mtx);
652
653 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
654 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
655
656 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
657 goto do_survey;
658
659 sinfo.filled = 0;
660 sta_set_sinfo(sta, &sinfo);
661
662 i = 0;
663 ADD_STA_STATS(sta);
664
665 data[i++] = sta->sta_state;
666
667
668 if (sinfo.filled & STATION_INFO_TX_BITRATE)
669 data[i] = 100000 *
670 cfg80211_calculate_bitrate(&sinfo.txrate);
671 i++;
672 if (sinfo.filled & STATION_INFO_RX_BITRATE)
673 data[i] = 100000 *
674 cfg80211_calculate_bitrate(&sinfo.rxrate);
675 i++;
676
677 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
678 data[i] = (u8)sinfo.signal_avg;
679 i++;
680 } else {
681 list_for_each_entry(sta, &local->sta_list, list) {
682 /* Make sure this station belongs to the proper dev */
683 if (sta->sdata->dev != dev)
684 continue;
685
686 sinfo.filled = 0;
687 sta_set_sinfo(sta, &sinfo);
688 i = 0;
689 ADD_STA_STATS(sta);
690 }
691 }
692
693 do_survey:
694 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
695 /* Get survey stats for current channel */
696 survey.filled = 0;
697
698 rcu_read_lock();
699 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
700 if (chanctx_conf)
701 channel = chanctx_conf->def.chan;
702 else
703 channel = NULL;
704 rcu_read_unlock();
705
706 if (channel) {
707 q = 0;
708 do {
709 survey.filled = 0;
710 if (drv_get_survey(local, q, &survey) != 0) {
711 survey.filled = 0;
712 break;
713 }
714 q++;
715 } while (channel != survey.channel);
716 }
717
718 if (survey.filled)
719 data[i++] = survey.channel->center_freq;
720 else
721 data[i++] = 0;
722 if (survey.filled & SURVEY_INFO_NOISE_DBM)
723 data[i++] = (u8)survey.noise;
724 else
725 data[i++] = -1LL;
726 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
727 data[i++] = survey.channel_time;
728 else
729 data[i++] = -1LL;
730 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
731 data[i++] = survey.channel_time_busy;
732 else
733 data[i++] = -1LL;
734 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
735 data[i++] = survey.channel_time_ext_busy;
736 else
737 data[i++] = -1LL;
738 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
739 data[i++] = survey.channel_time_rx;
740 else
741 data[i++] = -1LL;
742 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
743 data[i++] = survey.channel_time_tx;
744 else
745 data[i++] = -1LL;
746
747 mutex_unlock(&local->sta_mtx);
748
749 if (WARN_ON(i != STA_STATS_LEN))
750 return;
751
752 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
753 }
754
755 static void ieee80211_get_et_strings(struct wiphy *wiphy,
756 struct net_device *dev,
757 u32 sset, u8 *data)
758 {
759 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
760 int sz_sta_stats = 0;
761
762 if (sset == ETH_SS_STATS) {
763 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
764 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
765 }
766 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
767 }
768
769 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
770 int idx, u8 *mac, struct station_info *sinfo)
771 {
772 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
773 struct ieee80211_local *local = sdata->local;
774 struct sta_info *sta;
775 int ret = -ENOENT;
776
777 mutex_lock(&local->sta_mtx);
778
779 sta = sta_info_get_by_idx(sdata, idx);
780 if (sta) {
781 ret = 0;
782 memcpy(mac, sta->sta.addr, ETH_ALEN);
783 sta_set_sinfo(sta, sinfo);
784 }
785
786 mutex_unlock(&local->sta_mtx);
787
788 return ret;
789 }
790
791 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
792 int idx, struct survey_info *survey)
793 {
794 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
795
796 return drv_get_survey(local, idx, survey);
797 }
798
799 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
800 u8 *mac, struct station_info *sinfo)
801 {
802 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
803 struct ieee80211_local *local = sdata->local;
804 struct sta_info *sta;
805 int ret = -ENOENT;
806
807 mutex_lock(&local->sta_mtx);
808
809 sta = sta_info_get_bss(sdata, mac);
810 if (sta) {
811 ret = 0;
812 sta_set_sinfo(sta, sinfo);
813 }
814
815 mutex_unlock(&local->sta_mtx);
816
817 return ret;
818 }
819
820 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
821 struct cfg80211_chan_def *chandef)
822 {
823 struct ieee80211_local *local = wiphy_priv(wiphy);
824 struct ieee80211_sub_if_data *sdata;
825 int ret = 0;
826
827 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
828 return 0;
829
830 mutex_lock(&local->iflist_mtx);
831 if (local->use_chanctx) {
832 sdata = rcu_dereference_protected(
833 local->monitor_sdata,
834 lockdep_is_held(&local->iflist_mtx));
835 if (sdata) {
836 ieee80211_vif_release_channel(sdata);
837 ret = ieee80211_vif_use_channel(sdata, chandef,
838 IEEE80211_CHANCTX_EXCLUSIVE);
839 }
840 } else if (local->open_count == local->monitors) {
841 local->_oper_chandef = *chandef;
842 ieee80211_hw_config(local, 0);
843 }
844
845 if (ret == 0)
846 local->monitor_chandef = *chandef;
847 mutex_unlock(&local->iflist_mtx);
848
849 return ret;
850 }
851
852 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
853 const u8 *resp, size_t resp_len)
854 {
855 struct probe_resp *new, *old;
856
857 if (!resp || !resp_len)
858 return 1;
859
860 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
861
862 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
863 if (!new)
864 return -ENOMEM;
865
866 new->len = resp_len;
867 memcpy(new->data, resp, resp_len);
868
869 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
870 if (old)
871 kfree_rcu(old, rcu_head);
872
873 return 0;
874 }
875
876 int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
877 struct cfg80211_beacon_data *params)
878 {
879 struct beacon_data *new, *old;
880 int new_head_len, new_tail_len;
881 int size, err;
882 u32 changed = BSS_CHANGED_BEACON;
883
884 old = sdata_dereference(sdata->u.ap.beacon, sdata);
885
886
887 /* Need to have a beacon head if we don't have one yet */
888 if (!params->head && !old)
889 return -EINVAL;
890
891 /* new or old head? */
892 if (params->head)
893 new_head_len = params->head_len;
894 else
895 new_head_len = old->head_len;
896
897 /* new or old tail? */
898 if (params->tail || !old)
899 /* params->tail_len will be zero for !params->tail */
900 new_tail_len = params->tail_len;
901 else
902 new_tail_len = old->tail_len;
903
904 size = sizeof(*new) + new_head_len + new_tail_len;
905
906 new = kzalloc(size, GFP_KERNEL);
907 if (!new)
908 return -ENOMEM;
909
910 /* start filling the new info now */
911
912 /*
913 * pointers go into the block we allocated,
914 * memory is | beacon_data | head | tail |
915 */
916 new->head = ((u8 *) new) + sizeof(*new);
917 new->tail = new->head + new_head_len;
918 new->head_len = new_head_len;
919 new->tail_len = new_tail_len;
920
921 /* copy in head */
922 if (params->head)
923 memcpy(new->head, params->head, new_head_len);
924 else
925 memcpy(new->head, old->head, new_head_len);
926
927 /* copy in optional tail */
928 if (params->tail)
929 memcpy(new->tail, params->tail, new_tail_len);
930 else
931 if (old)
932 memcpy(new->tail, old->tail, new_tail_len);
933
934 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
935 params->probe_resp_len);
936 if (err < 0)
937 return err;
938 if (err == 0)
939 changed |= BSS_CHANGED_AP_PROBE_RESP;
940
941 rcu_assign_pointer(sdata->u.ap.beacon, new);
942
943 if (old)
944 kfree_rcu(old, rcu_head);
945
946 return changed;
947 }
948
949 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
950 struct cfg80211_ap_settings *params)
951 {
952 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
953 struct beacon_data *old;
954 struct ieee80211_sub_if_data *vlan;
955 u32 changed = BSS_CHANGED_BEACON_INT |
956 BSS_CHANGED_BEACON_ENABLED |
957 BSS_CHANGED_BEACON |
958 BSS_CHANGED_SSID |
959 BSS_CHANGED_P2P_PS;
960 int err;
961
962 old = sdata_dereference(sdata->u.ap.beacon, sdata);
963 if (old)
964 return -EALREADY;
965
966 /* TODO: make hostapd tell us what it wants */
967 sdata->smps_mode = IEEE80211_SMPS_OFF;
968 sdata->needed_rx_chains = sdata->local->rx_chains;
969 sdata->radar_required = params->radar_required;
970
971 err = ieee80211_vif_use_channel(sdata, &params->chandef,
972 IEEE80211_CHANCTX_SHARED);
973 if (err)
974 return err;
975 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
976
977 /*
978 * Apply control port protocol, this allows us to
979 * not encrypt dynamic WEP control frames.
980 */
981 sdata->control_port_protocol = params->crypto.control_port_ethertype;
982 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
983 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
984 &params->crypto,
985 sdata->vif.type);
986
987 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
988 vlan->control_port_protocol =
989 params->crypto.control_port_ethertype;
990 vlan->control_port_no_encrypt =
991 params->crypto.control_port_no_encrypt;
992 vlan->encrypt_headroom =
993 ieee80211_cs_headroom(sdata->local,
994 &params->crypto,
995 vlan->vif.type);
996 }
997
998 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
999 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1000 sdata->vif.bss_conf.enable_beacon = true;
1001
1002 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1003 if (params->ssid_len)
1004 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1005 params->ssid_len);
1006 sdata->vif.bss_conf.hidden_ssid =
1007 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1008
1009 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1010 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1011 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1012 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1013 if (params->p2p_opp_ps)
1014 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1015 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1016
1017 err = ieee80211_assign_beacon(sdata, &params->beacon);
1018 if (err < 0)
1019 return err;
1020 changed |= err;
1021
1022 err = drv_start_ap(sdata->local, sdata);
1023 if (err) {
1024 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1025
1026 if (old)
1027 kfree_rcu(old, rcu_head);
1028 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1029 return err;
1030 }
1031
1032 ieee80211_bss_info_change_notify(sdata, changed);
1033
1034 netif_carrier_on(dev);
1035 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1036 netif_carrier_on(vlan->dev);
1037
1038 return 0;
1039 }
1040
1041 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1042 struct cfg80211_beacon_data *params)
1043 {
1044 struct ieee80211_sub_if_data *sdata;
1045 struct beacon_data *old;
1046 int err;
1047
1048 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1049
1050 /* don't allow changing the beacon while CSA is in place - offset
1051 * of channel switch counter may change
1052 */
1053 if (sdata->vif.csa_active)
1054 return -EBUSY;
1055
1056 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1057 if (!old)
1058 return -ENOENT;
1059
1060 err = ieee80211_assign_beacon(sdata, params);
1061 if (err < 0)
1062 return err;
1063 ieee80211_bss_info_change_notify(sdata, err);
1064 return 0;
1065 }
1066
1067 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1068 {
1069 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1070 struct ieee80211_sub_if_data *vlan;
1071 struct ieee80211_local *local = sdata->local;
1072 struct beacon_data *old_beacon;
1073 struct probe_resp *old_probe_resp;
1074 struct cfg80211_chan_def chandef;
1075
1076 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1077 if (!old_beacon)
1078 return -ENOENT;
1079 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1080
1081 /* abort any running channel switch */
1082 sdata->vif.csa_active = false;
1083 kfree(sdata->u.ap.next_beacon);
1084 sdata->u.ap.next_beacon = NULL;
1085
1086 cancel_work_sync(&sdata->u.ap.request_smps_work);
1087
1088 /* turn off carrier for this interface and dependent VLANs */
1089 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1090 netif_carrier_off(vlan->dev);
1091 netif_carrier_off(dev);
1092
1093 /* remove beacon and probe response */
1094 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1095 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1096 kfree_rcu(old_beacon, rcu_head);
1097 if (old_probe_resp)
1098 kfree_rcu(old_probe_resp, rcu_head);
1099
1100 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1101 sta_info_flush_defer(vlan);
1102 sta_info_flush_defer(sdata);
1103 synchronize_net();
1104 rcu_barrier();
1105 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1106 sta_info_flush_cleanup(vlan);
1107 ieee80211_free_keys(vlan);
1108 }
1109 sta_info_flush_cleanup(sdata);
1110 ieee80211_free_keys(sdata);
1111
1112 sdata->vif.bss_conf.enable_beacon = false;
1113 sdata->vif.bss_conf.ssid_len = 0;
1114 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1115 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1116
1117 if (sdata->wdev.cac_started) {
1118 chandef = sdata->vif.bss_conf.chandef;
1119 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1120 cfg80211_cac_event(sdata->dev, &chandef,
1121 NL80211_RADAR_CAC_ABORTED,
1122 GFP_KERNEL);
1123 }
1124
1125 drv_stop_ap(sdata->local, sdata);
1126
1127 /* free all potentially still buffered bcast frames */
1128 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1129 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1130
1131 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1132 ieee80211_vif_release_channel(sdata);
1133
1134 return 0;
1135 }
1136
1137 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1138 struct iapp_layer2_update {
1139 u8 da[ETH_ALEN]; /* broadcast */
1140 u8 sa[ETH_ALEN]; /* STA addr */
1141 __be16 len; /* 6 */
1142 u8 dsap; /* 0 */
1143 u8 ssap; /* 0 */
1144 u8 control;
1145 u8 xid_info[3];
1146 } __packed;
1147
1148 static void ieee80211_send_layer2_update(struct sta_info *sta)
1149 {
1150 struct iapp_layer2_update *msg;
1151 struct sk_buff *skb;
1152
1153 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1154 * bridge devices */
1155
1156 skb = dev_alloc_skb(sizeof(*msg));
1157 if (!skb)
1158 return;
1159 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1160
1161 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1162 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1163
1164 eth_broadcast_addr(msg->da);
1165 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1166 msg->len = htons(6);
1167 msg->dsap = 0;
1168 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1169 msg->control = 0xaf; /* XID response lsb.1111F101.
1170 * F=0 (no poll command; unsolicited frame) */
1171 msg->xid_info[0] = 0x81; /* XID format identifier */
1172 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1173 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1174
1175 skb->dev = sta->sdata->dev;
1176 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1177 memset(skb->cb, 0, sizeof(skb->cb));
1178 netif_rx_ni(skb);
1179 }
1180
1181 static int sta_apply_auth_flags(struct ieee80211_local *local,
1182 struct sta_info *sta,
1183 u32 mask, u32 set)
1184 {
1185 int ret;
1186
1187 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1188 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1189 !test_sta_flag(sta, WLAN_STA_AUTH)) {
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_ASSOCIATED) &&
1196 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1197 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1198 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1199 if (ret)
1200 return ret;
1201 }
1202
1203 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1204 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1205 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1206 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1207 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1208 else
1209 ret = 0;
1210 if (ret)
1211 return ret;
1212 }
1213
1214 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1215 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1216 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1217 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1218 if (ret)
1219 return ret;
1220 }
1221
1222 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1223 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1224 test_sta_flag(sta, WLAN_STA_AUTH)) {
1225 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1226 if (ret)
1227 return ret;
1228 }
1229
1230 return 0;
1231 }
1232
1233 static int sta_apply_parameters(struct ieee80211_local *local,
1234 struct sta_info *sta,
1235 struct station_parameters *params)
1236 {
1237 int ret = 0;
1238 struct ieee80211_supported_band *sband;
1239 struct ieee80211_sub_if_data *sdata = sta->sdata;
1240 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1241 u32 mask, set;
1242
1243 sband = local->hw.wiphy->bands[band];
1244
1245 mask = params->sta_flags_mask;
1246 set = params->sta_flags_set;
1247
1248 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1249 /*
1250 * In mesh mode, ASSOCIATED isn't part of the nl80211
1251 * API but must follow AUTHENTICATED for driver state.
1252 */
1253 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1254 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1255 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1256 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1257 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1258 /*
1259 * TDLS -- everything follows authorized, but
1260 * only becoming authorized is possible, not
1261 * going back
1262 */
1263 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1264 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1265 BIT(NL80211_STA_FLAG_ASSOCIATED);
1266 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1267 BIT(NL80211_STA_FLAG_ASSOCIATED);
1268 }
1269 }
1270
1271 ret = sta_apply_auth_flags(local, sta, mask, set);
1272 if (ret)
1273 return ret;
1274
1275 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1276 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1277 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1278 else
1279 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1280 }
1281
1282 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1283 if (set & BIT(NL80211_STA_FLAG_WME)) {
1284 set_sta_flag(sta, WLAN_STA_WME);
1285 sta->sta.wme = true;
1286 } else {
1287 clear_sta_flag(sta, WLAN_STA_WME);
1288 sta->sta.wme = false;
1289 }
1290 }
1291
1292 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1293 if (set & BIT(NL80211_STA_FLAG_MFP))
1294 set_sta_flag(sta, WLAN_STA_MFP);
1295 else
1296 clear_sta_flag(sta, WLAN_STA_MFP);
1297 }
1298
1299 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1300 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1301 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1302 else
1303 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1304 }
1305
1306 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1307 sta->sta.uapsd_queues = params->uapsd_queues;
1308 sta->sta.max_sp = params->max_sp;
1309 }
1310
1311 /*
1312 * cfg80211 validates this (1-2007) and allows setting the AID
1313 * only when creating a new station entry
1314 */
1315 if (params->aid)
1316 sta->sta.aid = params->aid;
1317
1318 /*
1319 * Some of the following updates would be racy if called on an
1320 * existing station, via ieee80211_change_station(). However,
1321 * all such changes are rejected by cfg80211 except for updates
1322 * changing the supported rates on an existing but not yet used
1323 * TDLS peer.
1324 */
1325
1326 if (params->listen_interval >= 0)
1327 sta->listen_interval = params->listen_interval;
1328
1329 if (params->supported_rates) {
1330 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1331 sband, params->supported_rates,
1332 params->supported_rates_len,
1333 &sta->sta.supp_rates[band]);
1334 }
1335
1336 if (params->ht_capa)
1337 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1338 params->ht_capa, sta);
1339
1340 if (params->vht_capa)
1341 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1342 params->vht_capa, sta);
1343
1344 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1345 #ifdef CONFIG_MAC80211_MESH
1346 u32 changed = 0;
1347
1348 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1349 switch (params->plink_state) {
1350 case NL80211_PLINK_ESTAB:
1351 if (sta->plink_state != NL80211_PLINK_ESTAB)
1352 changed = mesh_plink_inc_estab_count(
1353 sdata);
1354 sta->plink_state = params->plink_state;
1355
1356 ieee80211_mps_sta_status_update(sta);
1357 changed |= ieee80211_mps_set_sta_local_pm(sta,
1358 sdata->u.mesh.mshcfg.power_mode);
1359 break;
1360 case NL80211_PLINK_LISTEN:
1361 case NL80211_PLINK_BLOCKED:
1362 case NL80211_PLINK_OPN_SNT:
1363 case NL80211_PLINK_OPN_RCVD:
1364 case NL80211_PLINK_CNF_RCVD:
1365 case NL80211_PLINK_HOLDING:
1366 if (sta->plink_state == NL80211_PLINK_ESTAB)
1367 changed = mesh_plink_dec_estab_count(
1368 sdata);
1369 sta->plink_state = params->plink_state;
1370
1371 ieee80211_mps_sta_status_update(sta);
1372 changed |= ieee80211_mps_set_sta_local_pm(sta,
1373 NL80211_MESH_POWER_UNKNOWN);
1374 break;
1375 default:
1376 /* nothing */
1377 break;
1378 }
1379 }
1380
1381 switch (params->plink_action) {
1382 case NL80211_PLINK_ACTION_NO_ACTION:
1383 /* nothing */
1384 break;
1385 case NL80211_PLINK_ACTION_OPEN:
1386 changed |= mesh_plink_open(sta);
1387 break;
1388 case NL80211_PLINK_ACTION_BLOCK:
1389 changed |= mesh_plink_block(sta);
1390 break;
1391 }
1392
1393 if (params->local_pm)
1394 changed |=
1395 ieee80211_mps_set_sta_local_pm(sta,
1396 params->local_pm);
1397 ieee80211_mbss_info_change_notify(sdata, changed);
1398 #endif
1399 }
1400
1401 return 0;
1402 }
1403
1404 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1405 u8 *mac, struct station_parameters *params)
1406 {
1407 struct ieee80211_local *local = wiphy_priv(wiphy);
1408 struct sta_info *sta;
1409 struct ieee80211_sub_if_data *sdata;
1410 int err;
1411 int layer2_update;
1412
1413 if (params->vlan) {
1414 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1415
1416 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1417 sdata->vif.type != NL80211_IFTYPE_AP)
1418 return -EINVAL;
1419 } else
1420 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1421
1422 if (ether_addr_equal(mac, sdata->vif.addr))
1423 return -EINVAL;
1424
1425 if (is_multicast_ether_addr(mac))
1426 return -EINVAL;
1427
1428 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1429 if (!sta)
1430 return -ENOMEM;
1431
1432 /*
1433 * defaults -- if userspace wants something else we'll
1434 * change it accordingly in sta_apply_parameters()
1435 */
1436 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1437 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1438 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1439 }
1440
1441 err = sta_apply_parameters(local, sta, params);
1442 if (err) {
1443 sta_info_free(local, sta);
1444 return err;
1445 }
1446
1447 /*
1448 * for TDLS, rate control should be initialized only when
1449 * rates are known and station is marked authorized
1450 */
1451 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1452 rate_control_rate_init(sta);
1453
1454 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1455 sdata->vif.type == NL80211_IFTYPE_AP;
1456
1457 err = sta_info_insert_rcu(sta);
1458 if (err) {
1459 rcu_read_unlock();
1460 return err;
1461 }
1462
1463 if (layer2_update)
1464 ieee80211_send_layer2_update(sta);
1465
1466 rcu_read_unlock();
1467
1468 return 0;
1469 }
1470
1471 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1472 u8 *mac)
1473 {
1474 struct ieee80211_sub_if_data *sdata;
1475
1476 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1477
1478 if (mac)
1479 return sta_info_destroy_addr_bss(sdata, mac);
1480
1481 sta_info_flush(sdata);
1482 return 0;
1483 }
1484
1485 static int ieee80211_change_station(struct wiphy *wiphy,
1486 struct net_device *dev, u8 *mac,
1487 struct station_parameters *params)
1488 {
1489 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1490 struct ieee80211_local *local = wiphy_priv(wiphy);
1491 struct sta_info *sta;
1492 struct ieee80211_sub_if_data *vlansdata;
1493 enum cfg80211_station_type statype;
1494 int err;
1495
1496 mutex_lock(&local->sta_mtx);
1497
1498 sta = sta_info_get_bss(sdata, mac);
1499 if (!sta) {
1500 err = -ENOENT;
1501 goto out_err;
1502 }
1503
1504 switch (sdata->vif.type) {
1505 case NL80211_IFTYPE_MESH_POINT:
1506 if (sdata->u.mesh.user_mpm)
1507 statype = CFG80211_STA_MESH_PEER_USER;
1508 else
1509 statype = CFG80211_STA_MESH_PEER_KERNEL;
1510 break;
1511 case NL80211_IFTYPE_ADHOC:
1512 statype = CFG80211_STA_IBSS;
1513 break;
1514 case NL80211_IFTYPE_STATION:
1515 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1516 statype = CFG80211_STA_AP_STA;
1517 break;
1518 }
1519 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1520 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1521 else
1522 statype = CFG80211_STA_TDLS_PEER_SETUP;
1523 break;
1524 case NL80211_IFTYPE_AP:
1525 case NL80211_IFTYPE_AP_VLAN:
1526 statype = CFG80211_STA_AP_CLIENT;
1527 break;
1528 default:
1529 err = -EOPNOTSUPP;
1530 goto out_err;
1531 }
1532
1533 err = cfg80211_check_station_change(wiphy, params, statype);
1534 if (err)
1535 goto out_err;
1536
1537 if (params->vlan && params->vlan != sta->sdata->dev) {
1538 bool prev_4addr = false;
1539 bool new_4addr = false;
1540
1541 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1542
1543 if (params->vlan->ieee80211_ptr->use_4addr) {
1544 if (vlansdata->u.vlan.sta) {
1545 err = -EBUSY;
1546 goto out_err;
1547 }
1548
1549 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1550 new_4addr = true;
1551 }
1552
1553 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1554 sta->sdata->u.vlan.sta) {
1555 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1556 prev_4addr = true;
1557 }
1558
1559 sta->sdata = vlansdata;
1560
1561 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1562 prev_4addr != new_4addr) {
1563 if (new_4addr)
1564 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1565 else
1566 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1567 }
1568
1569 ieee80211_send_layer2_update(sta);
1570 }
1571
1572 err = sta_apply_parameters(local, sta, params);
1573 if (err)
1574 goto out_err;
1575
1576 /* When peer becomes authorized, init rate control as well */
1577 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1578 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1579 rate_control_rate_init(sta);
1580
1581 mutex_unlock(&local->sta_mtx);
1582
1583 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1584 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1585 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1586 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1587 sta_info_tx_streams(sta) != 1) {
1588 ht_dbg(sta->sdata,
1589 "%pM just authorized and MIMO capable - update SMPS\n",
1590 sta->sta.addr);
1591 ieee80211_send_smps_action(sta->sdata,
1592 sta->sdata->bss->req_smps,
1593 sta->sta.addr,
1594 sta->sdata->vif.bss_conf.bssid);
1595 }
1596
1597 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1598 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1599 ieee80211_recalc_ps(local, -1);
1600 ieee80211_recalc_ps_vif(sdata);
1601 }
1602
1603 return 0;
1604 out_err:
1605 mutex_unlock(&local->sta_mtx);
1606 return err;
1607 }
1608
1609 #ifdef CONFIG_MAC80211_MESH
1610 static int ieee80211_add_mpath(struct wiphy *wiphy, 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 sta = sta_info_get(sdata, next_hop);
1621 if (!sta) {
1622 rcu_read_unlock();
1623 return -ENOENT;
1624 }
1625
1626 mpath = mesh_path_add(sdata, dst);
1627 if (IS_ERR(mpath)) {
1628 rcu_read_unlock();
1629 return PTR_ERR(mpath);
1630 }
1631
1632 mesh_path_fix_nexthop(mpath, sta);
1633
1634 rcu_read_unlock();
1635 return 0;
1636 }
1637
1638 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1639 u8 *dst)
1640 {
1641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1642
1643 if (dst)
1644 return mesh_path_del(sdata, dst);
1645
1646 mesh_path_flush_by_iface(sdata);
1647 return 0;
1648 }
1649
1650 static int ieee80211_change_mpath(struct wiphy *wiphy,
1651 struct net_device *dev,
1652 u8 *dst, u8 *next_hop)
1653 {
1654 struct ieee80211_sub_if_data *sdata;
1655 struct mesh_path *mpath;
1656 struct sta_info *sta;
1657
1658 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1659
1660 rcu_read_lock();
1661
1662 sta = sta_info_get(sdata, next_hop);
1663 if (!sta) {
1664 rcu_read_unlock();
1665 return -ENOENT;
1666 }
1667
1668 mpath = mesh_path_lookup(sdata, dst);
1669 if (!mpath) {
1670 rcu_read_unlock();
1671 return -ENOENT;
1672 }
1673
1674 mesh_path_fix_nexthop(mpath, sta);
1675
1676 rcu_read_unlock();
1677 return 0;
1678 }
1679
1680 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1681 struct mpath_info *pinfo)
1682 {
1683 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1684
1685 if (next_hop_sta)
1686 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1687 else
1688 memset(next_hop, 0, ETH_ALEN);
1689
1690 memset(pinfo, 0, sizeof(*pinfo));
1691
1692 pinfo->generation = mesh_paths_generation;
1693
1694 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1695 MPATH_INFO_SN |
1696 MPATH_INFO_METRIC |
1697 MPATH_INFO_EXPTIME |
1698 MPATH_INFO_DISCOVERY_TIMEOUT |
1699 MPATH_INFO_DISCOVERY_RETRIES |
1700 MPATH_INFO_FLAGS;
1701
1702 pinfo->frame_qlen = mpath->frame_queue.qlen;
1703 pinfo->sn = mpath->sn;
1704 pinfo->metric = mpath->metric;
1705 if (time_before(jiffies, mpath->exp_time))
1706 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1707 pinfo->discovery_timeout =
1708 jiffies_to_msecs(mpath->discovery_timeout);
1709 pinfo->discovery_retries = mpath->discovery_retries;
1710 if (mpath->flags & MESH_PATH_ACTIVE)
1711 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1712 if (mpath->flags & MESH_PATH_RESOLVING)
1713 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1714 if (mpath->flags & MESH_PATH_SN_VALID)
1715 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1716 if (mpath->flags & MESH_PATH_FIXED)
1717 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1718 if (mpath->flags & MESH_PATH_RESOLVED)
1719 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1720 }
1721
1722 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1723 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1724
1725 {
1726 struct ieee80211_sub_if_data *sdata;
1727 struct mesh_path *mpath;
1728
1729 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1730
1731 rcu_read_lock();
1732 mpath = mesh_path_lookup(sdata, dst);
1733 if (!mpath) {
1734 rcu_read_unlock();
1735 return -ENOENT;
1736 }
1737 memcpy(dst, mpath->dst, ETH_ALEN);
1738 mpath_set_pinfo(mpath, next_hop, pinfo);
1739 rcu_read_unlock();
1740 return 0;
1741 }
1742
1743 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1744 int idx, u8 *dst, u8 *next_hop,
1745 struct mpath_info *pinfo)
1746 {
1747 struct ieee80211_sub_if_data *sdata;
1748 struct mesh_path *mpath;
1749
1750 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1751
1752 rcu_read_lock();
1753 mpath = mesh_path_lookup_by_idx(sdata, idx);
1754 if (!mpath) {
1755 rcu_read_unlock();
1756 return -ENOENT;
1757 }
1758 memcpy(dst, mpath->dst, ETH_ALEN);
1759 mpath_set_pinfo(mpath, next_hop, pinfo);
1760 rcu_read_unlock();
1761 return 0;
1762 }
1763
1764 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1765 struct net_device *dev,
1766 struct mesh_config *conf)
1767 {
1768 struct ieee80211_sub_if_data *sdata;
1769 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1770
1771 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1772 return 0;
1773 }
1774
1775 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1776 {
1777 return (mask >> (parm-1)) & 0x1;
1778 }
1779
1780 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1781 const struct mesh_setup *setup)
1782 {
1783 u8 *new_ie;
1784 const u8 *old_ie;
1785 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1786 struct ieee80211_sub_if_data, u.mesh);
1787
1788 /* allocate information elements */
1789 new_ie = NULL;
1790 old_ie = ifmsh->ie;
1791
1792 if (setup->ie_len) {
1793 new_ie = kmemdup(setup->ie, setup->ie_len,
1794 GFP_KERNEL);
1795 if (!new_ie)
1796 return -ENOMEM;
1797 }
1798 ifmsh->ie_len = setup->ie_len;
1799 ifmsh->ie = new_ie;
1800 kfree(old_ie);
1801
1802 /* now copy the rest of the setup parameters */
1803 ifmsh->mesh_id_len = setup->mesh_id_len;
1804 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1805 ifmsh->mesh_sp_id = setup->sync_method;
1806 ifmsh->mesh_pp_id = setup->path_sel_proto;
1807 ifmsh->mesh_pm_id = setup->path_metric;
1808 ifmsh->user_mpm = setup->user_mpm;
1809 ifmsh->mesh_auth_id = setup->auth_id;
1810 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1811 if (setup->is_authenticated)
1812 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1813 if (setup->is_secure)
1814 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1815
1816 /* mcast rate setting in Mesh Node */
1817 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1818 sizeof(setup->mcast_rate));
1819 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1820
1821 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1822 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1823
1824 return 0;
1825 }
1826
1827 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1828 struct net_device *dev, u32 mask,
1829 const struct mesh_config *nconf)
1830 {
1831 struct mesh_config *conf;
1832 struct ieee80211_sub_if_data *sdata;
1833 struct ieee80211_if_mesh *ifmsh;
1834
1835 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1836 ifmsh = &sdata->u.mesh;
1837
1838 /* Set the config options which we are interested in setting */
1839 conf = &(sdata->u.mesh.mshcfg);
1840 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1841 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1842 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1843 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1844 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1845 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1846 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1847 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1848 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1849 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1850 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1851 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1852 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1853 conf->element_ttl = nconf->element_ttl;
1854 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1855 if (ifmsh->user_mpm)
1856 return -EBUSY;
1857 conf->auto_open_plinks = nconf->auto_open_plinks;
1858 }
1859 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1860 conf->dot11MeshNbrOffsetMaxNeighbor =
1861 nconf->dot11MeshNbrOffsetMaxNeighbor;
1862 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1863 conf->dot11MeshHWMPmaxPREQretries =
1864 nconf->dot11MeshHWMPmaxPREQretries;
1865 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1866 conf->path_refresh_time = nconf->path_refresh_time;
1867 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1868 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1869 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1870 conf->dot11MeshHWMPactivePathTimeout =
1871 nconf->dot11MeshHWMPactivePathTimeout;
1872 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1873 conf->dot11MeshHWMPpreqMinInterval =
1874 nconf->dot11MeshHWMPpreqMinInterval;
1875 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1876 conf->dot11MeshHWMPperrMinInterval =
1877 nconf->dot11MeshHWMPperrMinInterval;
1878 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1879 mask))
1880 conf->dot11MeshHWMPnetDiameterTraversalTime =
1881 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1882 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1883 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1884 ieee80211_mesh_root_setup(ifmsh);
1885 }
1886 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1887 /* our current gate announcement implementation rides on root
1888 * announcements, so require this ifmsh to also be a root node
1889 * */
1890 if (nconf->dot11MeshGateAnnouncementProtocol &&
1891 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1892 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1893 ieee80211_mesh_root_setup(ifmsh);
1894 }
1895 conf->dot11MeshGateAnnouncementProtocol =
1896 nconf->dot11MeshGateAnnouncementProtocol;
1897 }
1898 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1899 conf->dot11MeshHWMPRannInterval =
1900 nconf->dot11MeshHWMPRannInterval;
1901 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1902 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1903 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1904 /* our RSSI threshold implementation is supported only for
1905 * devices that report signal in dBm.
1906 */
1907 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1908 return -ENOTSUPP;
1909 conf->rssi_threshold = nconf->rssi_threshold;
1910 }
1911 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1912 conf->ht_opmode = nconf->ht_opmode;
1913 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1914 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1915 }
1916 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1917 conf->dot11MeshHWMPactivePathToRootTimeout =
1918 nconf->dot11MeshHWMPactivePathToRootTimeout;
1919 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1920 conf->dot11MeshHWMProotInterval =
1921 nconf->dot11MeshHWMProotInterval;
1922 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1923 conf->dot11MeshHWMPconfirmationInterval =
1924 nconf->dot11MeshHWMPconfirmationInterval;
1925 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1926 conf->power_mode = nconf->power_mode;
1927 ieee80211_mps_local_status_update(sdata);
1928 }
1929 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1930 conf->dot11MeshAwakeWindowDuration =
1931 nconf->dot11MeshAwakeWindowDuration;
1932 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1933 conf->plink_timeout = nconf->plink_timeout;
1934 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1935 return 0;
1936 }
1937
1938 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1939 const struct mesh_config *conf,
1940 const struct mesh_setup *setup)
1941 {
1942 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1943 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1944 int err;
1945
1946 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1947 err = copy_mesh_setup(ifmsh, setup);
1948 if (err)
1949 return err;
1950
1951 /* can mesh use other SMPS modes? */
1952 sdata->smps_mode = IEEE80211_SMPS_OFF;
1953 sdata->needed_rx_chains = sdata->local->rx_chains;
1954
1955 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1956 IEEE80211_CHANCTX_SHARED);
1957 if (err)
1958 return err;
1959
1960 return ieee80211_start_mesh(sdata);
1961 }
1962
1963 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1964 {
1965 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1966
1967 ieee80211_stop_mesh(sdata);
1968 ieee80211_vif_release_channel(sdata);
1969
1970 return 0;
1971 }
1972 #endif
1973
1974 static int ieee80211_change_bss(struct wiphy *wiphy,
1975 struct net_device *dev,
1976 struct bss_parameters *params)
1977 {
1978 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1979 enum ieee80211_band band;
1980 u32 changed = 0;
1981
1982 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1983 return -ENOENT;
1984
1985 band = ieee80211_get_sdata_band(sdata);
1986
1987 if (params->use_cts_prot >= 0) {
1988 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1989 changed |= BSS_CHANGED_ERP_CTS_PROT;
1990 }
1991 if (params->use_short_preamble >= 0) {
1992 sdata->vif.bss_conf.use_short_preamble =
1993 params->use_short_preamble;
1994 changed |= BSS_CHANGED_ERP_PREAMBLE;
1995 }
1996
1997 if (!sdata->vif.bss_conf.use_short_slot &&
1998 band == IEEE80211_BAND_5GHZ) {
1999 sdata->vif.bss_conf.use_short_slot = true;
2000 changed |= BSS_CHANGED_ERP_SLOT;
2001 }
2002
2003 if (params->use_short_slot_time >= 0) {
2004 sdata->vif.bss_conf.use_short_slot =
2005 params->use_short_slot_time;
2006 changed |= BSS_CHANGED_ERP_SLOT;
2007 }
2008
2009 if (params->basic_rates) {
2010 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2011 wiphy->bands[band],
2012 params->basic_rates,
2013 params->basic_rates_len,
2014 &sdata->vif.bss_conf.basic_rates);
2015 changed |= BSS_CHANGED_BASIC_RATES;
2016 }
2017
2018 if (params->ap_isolate >= 0) {
2019 if (params->ap_isolate)
2020 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2021 else
2022 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2023 }
2024
2025 if (params->ht_opmode >= 0) {
2026 sdata->vif.bss_conf.ht_operation_mode =
2027 (u16) params->ht_opmode;
2028 changed |= BSS_CHANGED_HT;
2029 }
2030
2031 if (params->p2p_ctwindow >= 0) {
2032 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2033 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2034 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2035 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2036 changed |= BSS_CHANGED_P2P_PS;
2037 }
2038
2039 if (params->p2p_opp_ps > 0) {
2040 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2041 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2042 changed |= BSS_CHANGED_P2P_PS;
2043 } else if (params->p2p_opp_ps == 0) {
2044 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2045 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2046 changed |= BSS_CHANGED_P2P_PS;
2047 }
2048
2049 ieee80211_bss_info_change_notify(sdata, changed);
2050
2051 return 0;
2052 }
2053
2054 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2055 struct net_device *dev,
2056 struct ieee80211_txq_params *params)
2057 {
2058 struct ieee80211_local *local = wiphy_priv(wiphy);
2059 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2060 struct ieee80211_tx_queue_params p;
2061
2062 if (!local->ops->conf_tx)
2063 return -EOPNOTSUPP;
2064
2065 if (local->hw.queues < IEEE80211_NUM_ACS)
2066 return -EOPNOTSUPP;
2067
2068 memset(&p, 0, sizeof(p));
2069 p.aifs = params->aifs;
2070 p.cw_max = params->cwmax;
2071 p.cw_min = params->cwmin;
2072 p.txop = params->txop;
2073
2074 /*
2075 * Setting tx queue params disables u-apsd because it's only
2076 * called in master mode.
2077 */
2078 p.uapsd = false;
2079
2080 sdata->tx_conf[params->ac] = p;
2081 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2082 wiphy_debug(local->hw.wiphy,
2083 "failed to set TX queue parameters for AC %d\n",
2084 params->ac);
2085 return -EINVAL;
2086 }
2087
2088 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2089
2090 return 0;
2091 }
2092
2093 #ifdef CONFIG_PM
2094 static int ieee80211_suspend(struct wiphy *wiphy,
2095 struct cfg80211_wowlan *wowlan)
2096 {
2097 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2098 }
2099
2100 static int ieee80211_resume(struct wiphy *wiphy)
2101 {
2102 return __ieee80211_resume(wiphy_priv(wiphy));
2103 }
2104 #else
2105 #define ieee80211_suspend NULL
2106 #define ieee80211_resume NULL
2107 #endif
2108
2109 static int ieee80211_scan(struct wiphy *wiphy,
2110 struct cfg80211_scan_request *req)
2111 {
2112 struct ieee80211_sub_if_data *sdata;
2113
2114 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2115
2116 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2117 case NL80211_IFTYPE_STATION:
2118 case NL80211_IFTYPE_ADHOC:
2119 case NL80211_IFTYPE_MESH_POINT:
2120 case NL80211_IFTYPE_P2P_CLIENT:
2121 case NL80211_IFTYPE_P2P_DEVICE:
2122 break;
2123 case NL80211_IFTYPE_P2P_GO:
2124 if (sdata->local->ops->hw_scan)
2125 break;
2126 /*
2127 * FIXME: implement NoA while scanning in software,
2128 * for now fall through to allow scanning only when
2129 * beaconing hasn't been configured yet
2130 */
2131 case NL80211_IFTYPE_AP:
2132 /*
2133 * If the scan has been forced (and the driver supports
2134 * forcing), don't care about being beaconing already.
2135 * This will create problems to the attached stations (e.g. all
2136 * the frames sent while scanning on other channel will be
2137 * lost)
2138 */
2139 if (sdata->u.ap.beacon &&
2140 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2141 !(req->flags & NL80211_SCAN_FLAG_AP)))
2142 return -EOPNOTSUPP;
2143 break;
2144 default:
2145 return -EOPNOTSUPP;
2146 }
2147
2148 return ieee80211_request_scan(sdata, req);
2149 }
2150
2151 static int
2152 ieee80211_sched_scan_start(struct wiphy *wiphy,
2153 struct net_device *dev,
2154 struct cfg80211_sched_scan_request *req)
2155 {
2156 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2157
2158 if (!sdata->local->ops->sched_scan_start)
2159 return -EOPNOTSUPP;
2160
2161 return ieee80211_request_sched_scan_start(sdata, req);
2162 }
2163
2164 static int
2165 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2166 {
2167 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2168
2169 if (!sdata->local->ops->sched_scan_stop)
2170 return -EOPNOTSUPP;
2171
2172 return ieee80211_request_sched_scan_stop(sdata);
2173 }
2174
2175 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2176 struct cfg80211_auth_request *req)
2177 {
2178 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2179 }
2180
2181 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2182 struct cfg80211_assoc_request *req)
2183 {
2184 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2185 }
2186
2187 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2188 struct cfg80211_deauth_request *req)
2189 {
2190 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2191 }
2192
2193 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2194 struct cfg80211_disassoc_request *req)
2195 {
2196 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2197 }
2198
2199 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2200 struct cfg80211_ibss_params *params)
2201 {
2202 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2203 }
2204
2205 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2206 {
2207 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2208 }
2209
2210 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2211 int rate[IEEE80211_NUM_BANDS])
2212 {
2213 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2214
2215 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2216 sizeof(int) * IEEE80211_NUM_BANDS);
2217
2218 return 0;
2219 }
2220
2221 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2222 {
2223 struct ieee80211_local *local = wiphy_priv(wiphy);
2224 int err;
2225
2226 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2227 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2228
2229 if (err)
2230 return err;
2231 }
2232
2233 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2234 err = drv_set_coverage_class(local, wiphy->coverage_class);
2235
2236 if (err)
2237 return err;
2238 }
2239
2240 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2241 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2242
2243 if (err)
2244 return err;
2245 }
2246
2247 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2248 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2249 return -EINVAL;
2250 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2251 }
2252 if (changed & WIPHY_PARAM_RETRY_LONG) {
2253 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2254 return -EINVAL;
2255 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2256 }
2257 if (changed &
2258 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2259 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2260
2261 return 0;
2262 }
2263
2264 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2265 struct wireless_dev *wdev,
2266 enum nl80211_tx_power_setting type, int mbm)
2267 {
2268 struct ieee80211_local *local = wiphy_priv(wiphy);
2269 struct ieee80211_sub_if_data *sdata;
2270
2271 if (wdev) {
2272 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2273
2274 switch (type) {
2275 case NL80211_TX_POWER_AUTOMATIC:
2276 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2277 break;
2278 case NL80211_TX_POWER_LIMITED:
2279 case NL80211_TX_POWER_FIXED:
2280 if (mbm < 0 || (mbm % 100))
2281 return -EOPNOTSUPP;
2282 sdata->user_power_level = MBM_TO_DBM(mbm);
2283 break;
2284 }
2285
2286 ieee80211_recalc_txpower(sdata);
2287
2288 return 0;
2289 }
2290
2291 switch (type) {
2292 case NL80211_TX_POWER_AUTOMATIC:
2293 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2294 break;
2295 case NL80211_TX_POWER_LIMITED:
2296 case NL80211_TX_POWER_FIXED:
2297 if (mbm < 0 || (mbm % 100))
2298 return -EOPNOTSUPP;
2299 local->user_power_level = MBM_TO_DBM(mbm);
2300 break;
2301 }
2302
2303 mutex_lock(&local->iflist_mtx);
2304 list_for_each_entry(sdata, &local->interfaces, list)
2305 sdata->user_power_level = local->user_power_level;
2306 list_for_each_entry(sdata, &local->interfaces, list)
2307 ieee80211_recalc_txpower(sdata);
2308 mutex_unlock(&local->iflist_mtx);
2309
2310 return 0;
2311 }
2312
2313 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2314 struct wireless_dev *wdev,
2315 int *dbm)
2316 {
2317 struct ieee80211_local *local = wiphy_priv(wiphy);
2318 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2319
2320 if (!local->use_chanctx)
2321 *dbm = local->hw.conf.power_level;
2322 else
2323 *dbm = sdata->vif.bss_conf.txpower;
2324
2325 return 0;
2326 }
2327
2328 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2329 const u8 *addr)
2330 {
2331 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2332
2333 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2334
2335 return 0;
2336 }
2337
2338 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2339 {
2340 struct ieee80211_local *local = wiphy_priv(wiphy);
2341
2342 drv_rfkill_poll(local);
2343 }
2344
2345 #ifdef CONFIG_NL80211_TESTMODE
2346 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2347 struct wireless_dev *wdev,
2348 void *data, int len)
2349 {
2350 struct ieee80211_local *local = wiphy_priv(wiphy);
2351 struct ieee80211_vif *vif = NULL;
2352
2353 if (!local->ops->testmode_cmd)
2354 return -EOPNOTSUPP;
2355
2356 if (wdev) {
2357 struct ieee80211_sub_if_data *sdata;
2358
2359 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2360 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2361 vif = &sdata->vif;
2362 }
2363
2364 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2365 }
2366
2367 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2368 struct sk_buff *skb,
2369 struct netlink_callback *cb,
2370 void *data, int len)
2371 {
2372 struct ieee80211_local *local = wiphy_priv(wiphy);
2373
2374 if (!local->ops->testmode_dump)
2375 return -EOPNOTSUPP;
2376
2377 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2378 }
2379 #endif
2380
2381 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2382 enum ieee80211_smps_mode smps_mode)
2383 {
2384 struct sta_info *sta;
2385 enum ieee80211_smps_mode old_req;
2386 int i;
2387
2388 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2389 return -EINVAL;
2390
2391 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2392 return 0;
2393
2394 old_req = sdata->u.ap.req_smps;
2395 sdata->u.ap.req_smps = smps_mode;
2396
2397 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2398 if (old_req == smps_mode ||
2399 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2400 return 0;
2401
2402 /* If no associated stations, there's no need to do anything */
2403 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2404 sdata->smps_mode = smps_mode;
2405 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2406 return 0;
2407 }
2408
2409 ht_dbg(sdata,
2410 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2411 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2412
2413 mutex_lock(&sdata->local->sta_mtx);
2414 for (i = 0; i < STA_HASH_SIZE; i++) {
2415 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2416 lockdep_is_held(&sdata->local->sta_mtx));
2417 sta;
2418 sta = rcu_dereference_protected(sta->hnext,
2419 lockdep_is_held(&sdata->local->sta_mtx))) {
2420 /*
2421 * Only stations associated to our AP and
2422 * associated VLANs
2423 */
2424 if (sta->sdata->bss != &sdata->u.ap)
2425 continue;
2426
2427 /* This station doesn't support MIMO - skip it */
2428 if (sta_info_tx_streams(sta) == 1)
2429 continue;
2430
2431 /*
2432 * Don't wake up a STA just to send the action frame
2433 * unless we are getting more restrictive.
2434 */
2435 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2436 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2437 smps_mode)) {
2438 ht_dbg(sdata,
2439 "Won't send SMPS to sleeping STA %pM\n",
2440 sta->sta.addr);
2441 continue;
2442 }
2443
2444 /*
2445 * If the STA is not authorized, wait until it gets
2446 * authorized and the action frame will be sent then.
2447 */
2448 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2449 continue;
2450
2451 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2452 ieee80211_send_smps_action(sdata, smps_mode,
2453 sta->sta.addr,
2454 sdata->vif.bss_conf.bssid);
2455 }
2456 }
2457 mutex_unlock(&sdata->local->sta_mtx);
2458
2459 sdata->smps_mode = smps_mode;
2460 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2461
2462 return 0;
2463 }
2464
2465 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2466 enum ieee80211_smps_mode smps_mode)
2467 {
2468 const u8 *ap;
2469 enum ieee80211_smps_mode old_req;
2470 int err;
2471
2472 lockdep_assert_held(&sdata->wdev.mtx);
2473
2474 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2475 return -EINVAL;
2476
2477 old_req = sdata->u.mgd.req_smps;
2478 sdata->u.mgd.req_smps = smps_mode;
2479
2480 if (old_req == smps_mode &&
2481 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2482 return 0;
2483
2484 /*
2485 * If not associated, or current association is not an HT
2486 * association, there's no need to do anything, just store
2487 * the new value until we associate.
2488 */
2489 if (!sdata->u.mgd.associated ||
2490 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2491 return 0;
2492
2493 ap = sdata->u.mgd.associated->bssid;
2494
2495 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2496 if (sdata->u.mgd.powersave)
2497 smps_mode = IEEE80211_SMPS_DYNAMIC;
2498 else
2499 smps_mode = IEEE80211_SMPS_OFF;
2500 }
2501
2502 /* send SM PS frame to AP */
2503 err = ieee80211_send_smps_action(sdata, smps_mode,
2504 ap, ap);
2505 if (err)
2506 sdata->u.mgd.req_smps = old_req;
2507
2508 return err;
2509 }
2510
2511 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2512 bool enabled, int timeout)
2513 {
2514 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2515 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2516
2517 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2518 return -EOPNOTSUPP;
2519
2520 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2521 return -EOPNOTSUPP;
2522
2523 if (enabled == sdata->u.mgd.powersave &&
2524 timeout == local->dynamic_ps_forced_timeout)
2525 return 0;
2526
2527 sdata->u.mgd.powersave = enabled;
2528 local->dynamic_ps_forced_timeout = timeout;
2529
2530 /* no change, but if automatic follow powersave */
2531 sdata_lock(sdata);
2532 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2533 sdata_unlock(sdata);
2534
2535 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2536 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2537
2538 ieee80211_recalc_ps(local, -1);
2539 ieee80211_recalc_ps_vif(sdata);
2540
2541 return 0;
2542 }
2543
2544 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2545 struct net_device *dev,
2546 s32 rssi_thold, u32 rssi_hyst)
2547 {
2548 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2549 struct ieee80211_vif *vif = &sdata->vif;
2550 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2551
2552 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2553 rssi_hyst == bss_conf->cqm_rssi_hyst)
2554 return 0;
2555
2556 bss_conf->cqm_rssi_thold = rssi_thold;
2557 bss_conf->cqm_rssi_hyst = rssi_hyst;
2558
2559 /* tell the driver upon association, unless already associated */
2560 if (sdata->u.mgd.associated &&
2561 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2562 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2563
2564 return 0;
2565 }
2566
2567 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2568 struct net_device *dev,
2569 const u8 *addr,
2570 const struct cfg80211_bitrate_mask *mask)
2571 {
2572 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2573 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2574 int i, ret;
2575
2576 if (!ieee80211_sdata_running(sdata))
2577 return -ENETDOWN;
2578
2579 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2580 ret = drv_set_bitrate_mask(local, sdata, mask);
2581 if (ret)
2582 return ret;
2583 }
2584
2585 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2586 struct ieee80211_supported_band *sband = wiphy->bands[i];
2587 int j;
2588
2589 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2590 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2591 sizeof(mask->control[i].ht_mcs));
2592
2593 sdata->rc_has_mcs_mask[i] = false;
2594 if (!sband)
2595 continue;
2596
2597 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2598 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2599 sdata->rc_has_mcs_mask[i] = true;
2600 break;
2601 }
2602 }
2603
2604 return 0;
2605 }
2606
2607 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2608 struct ieee80211_sub_if_data *sdata,
2609 struct ieee80211_channel *channel,
2610 unsigned int duration, u64 *cookie,
2611 struct sk_buff *txskb,
2612 enum ieee80211_roc_type type)
2613 {
2614 struct ieee80211_roc_work *roc, *tmp;
2615 bool queued = false;
2616 int ret;
2617
2618 lockdep_assert_held(&local->mtx);
2619
2620 if (local->use_chanctx && !local->ops->remain_on_channel)
2621 return -EOPNOTSUPP;
2622
2623 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2624 if (!roc)
2625 return -ENOMEM;
2626
2627 roc->chan = channel;
2628 roc->duration = duration;
2629 roc->req_duration = duration;
2630 roc->frame = txskb;
2631 roc->type = type;
2632 roc->mgmt_tx_cookie = (unsigned long)txskb;
2633 roc->sdata = sdata;
2634 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2635 INIT_LIST_HEAD(&roc->dependents);
2636
2637 /* if there's one pending or we're scanning, queue this one */
2638 if (!list_empty(&local->roc_list) ||
2639 local->scanning || local->radar_detect_enabled)
2640 goto out_check_combine;
2641
2642 /* if not HW assist, just queue & schedule work */
2643 if (!local->ops->remain_on_channel) {
2644 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2645 goto out_queue;
2646 }
2647
2648 /* otherwise actually kick it off here (for error handling) */
2649
2650 /*
2651 * If the duration is zero, then the driver
2652 * wouldn't actually do anything. Set it to
2653 * 10 for now.
2654 *
2655 * TODO: cancel the off-channel operation
2656 * when we get the SKB's TX status and
2657 * the wait time was zero before.
2658 */
2659 if (!duration)
2660 duration = 10;
2661
2662 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2663 if (ret) {
2664 kfree(roc);
2665 return ret;
2666 }
2667
2668 roc->started = true;
2669 goto out_queue;
2670
2671 out_check_combine:
2672 list_for_each_entry(tmp, &local->roc_list, list) {
2673 if (tmp->chan != channel || tmp->sdata != sdata)
2674 continue;
2675
2676 /*
2677 * Extend this ROC if possible:
2678 *
2679 * If it hasn't started yet, just increase the duration
2680 * and add the new one to the list of dependents.
2681 * If the type of the new ROC has higher priority, modify the
2682 * type of the previous one to match that of the new one.
2683 */
2684 if (!tmp->started) {
2685 list_add_tail(&roc->list, &tmp->dependents);
2686 tmp->duration = max(tmp->duration, roc->duration);
2687 tmp->type = max(tmp->type, roc->type);
2688 queued = true;
2689 break;
2690 }
2691
2692 /* If it has already started, it's more difficult ... */
2693 if (local->ops->remain_on_channel) {
2694 unsigned long j = jiffies;
2695
2696 /*
2697 * In the offloaded ROC case, if it hasn't begun, add
2698 * this new one to the dependent list to be handled
2699 * when the master one begins. If it has begun,
2700 * check that there's still a minimum time left and
2701 * if so, start this one, transmitting the frame, but
2702 * add it to the list directly after this one with
2703 * a reduced time so we'll ask the driver to execute
2704 * it right after finishing the previous one, in the
2705 * hope that it'll also be executed right afterwards,
2706 * effectively extending the old one.
2707 * If there's no minimum time left, just add it to the
2708 * normal list.
2709 * TODO: the ROC type is ignored here, assuming that it
2710 * is better to immediately use the current ROC.
2711 */
2712 if (!tmp->hw_begun) {
2713 list_add_tail(&roc->list, &tmp->dependents);
2714 queued = true;
2715 break;
2716 }
2717
2718 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2719 tmp->hw_start_time +
2720 msecs_to_jiffies(tmp->duration))) {
2721 int new_dur;
2722
2723 ieee80211_handle_roc_started(roc);
2724
2725 new_dur = roc->duration -
2726 jiffies_to_msecs(tmp->hw_start_time +
2727 msecs_to_jiffies(
2728 tmp->duration) -
2729 j);
2730
2731 if (new_dur > 0) {
2732 /* add right after tmp */
2733 list_add(&roc->list, &tmp->list);
2734 } else {
2735 list_add_tail(&roc->list,
2736 &tmp->dependents);
2737 }
2738 queued = true;
2739 }
2740 } else if (del_timer_sync(&tmp->work.timer)) {
2741 unsigned long new_end;
2742
2743 /*
2744 * In the software ROC case, cancel the timer, if
2745 * that fails then the finish work is already
2746 * queued/pending and thus we queue the new ROC
2747 * normally, if that succeeds then we can extend
2748 * the timer duration and TX the frame (if any.)
2749 */
2750
2751 list_add_tail(&roc->list, &tmp->dependents);
2752 queued = true;
2753
2754 new_end = jiffies + msecs_to_jiffies(roc->duration);
2755
2756 /* ok, it was started & we canceled timer */
2757 if (time_after(new_end, tmp->work.timer.expires))
2758 mod_timer(&tmp->work.timer, new_end);
2759 else
2760 add_timer(&tmp->work.timer);
2761
2762 ieee80211_handle_roc_started(roc);
2763 }
2764 break;
2765 }
2766
2767 out_queue:
2768 if (!queued)
2769 list_add_tail(&roc->list, &local->roc_list);
2770
2771 /*
2772 * cookie is either the roc cookie (for normal roc)
2773 * or the SKB (for mgmt TX)
2774 */
2775 if (!txskb) {
2776 /* local->mtx protects this */
2777 local->roc_cookie_counter++;
2778 roc->cookie = local->roc_cookie_counter;
2779 /* wow, you wrapped 64 bits ... more likely a bug */
2780 if (WARN_ON(roc->cookie == 0)) {
2781 roc->cookie = 1;
2782 local->roc_cookie_counter++;
2783 }
2784 *cookie = roc->cookie;
2785 } else {
2786 *cookie = (unsigned long)txskb;
2787 }
2788
2789 return 0;
2790 }
2791
2792 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2793 struct wireless_dev *wdev,
2794 struct ieee80211_channel *chan,
2795 unsigned int duration,
2796 u64 *cookie)
2797 {
2798 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2799 struct ieee80211_local *local = sdata->local;
2800 int ret;
2801
2802 mutex_lock(&local->mtx);
2803 ret = ieee80211_start_roc_work(local, sdata, chan,
2804 duration, cookie, NULL,
2805 IEEE80211_ROC_TYPE_NORMAL);
2806 mutex_unlock(&local->mtx);
2807
2808 return ret;
2809 }
2810
2811 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2812 u64 cookie, bool mgmt_tx)
2813 {
2814 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2815 int ret;
2816
2817 mutex_lock(&local->mtx);
2818 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2819 struct ieee80211_roc_work *dep, *tmp2;
2820
2821 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2822 if (!mgmt_tx && dep->cookie != cookie)
2823 continue;
2824 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2825 continue;
2826 /* found dependent item -- just remove it */
2827 list_del(&dep->list);
2828 mutex_unlock(&local->mtx);
2829
2830 ieee80211_roc_notify_destroy(dep, true);
2831 return 0;
2832 }
2833
2834 if (!mgmt_tx && roc->cookie != cookie)
2835 continue;
2836 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2837 continue;
2838
2839 found = roc;
2840 break;
2841 }
2842
2843 if (!found) {
2844 mutex_unlock(&local->mtx);
2845 return -ENOENT;
2846 }
2847
2848 /*
2849 * We found the item to cancel, so do that. Note that it
2850 * may have dependents, which we also cancel (and send
2851 * the expired signal for.) Not doing so would be quite
2852 * tricky here, but we may need to fix it later.
2853 */
2854
2855 if (local->ops->remain_on_channel) {
2856 if (found->started) {
2857 ret = drv_cancel_remain_on_channel(local);
2858 if (WARN_ON_ONCE(ret)) {
2859 mutex_unlock(&local->mtx);
2860 return ret;
2861 }
2862 }
2863
2864 list_del(&found->list);
2865
2866 if (found->started)
2867 ieee80211_start_next_roc(local);
2868 mutex_unlock(&local->mtx);
2869
2870 ieee80211_roc_notify_destroy(found, true);
2871 } else {
2872 /* work may be pending so use it all the time */
2873 found->abort = true;
2874 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2875
2876 mutex_unlock(&local->mtx);
2877
2878 /* work will clean up etc */
2879 flush_delayed_work(&found->work);
2880 WARN_ON(!found->to_be_freed);
2881 kfree(found);
2882 }
2883
2884 return 0;
2885 }
2886
2887 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2888 struct wireless_dev *wdev,
2889 u64 cookie)
2890 {
2891 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2892 struct ieee80211_local *local = sdata->local;
2893
2894 return ieee80211_cancel_roc(local, cookie, false);
2895 }
2896
2897 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2898 struct net_device *dev,
2899 struct cfg80211_chan_def *chandef)
2900 {
2901 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2902 struct ieee80211_local *local = sdata->local;
2903 unsigned long timeout;
2904 int err;
2905
2906 if (!list_empty(&local->roc_list) || local->scanning)
2907 return -EBUSY;
2908
2909 /* whatever, but channel contexts should not complain about that one */
2910 sdata->smps_mode = IEEE80211_SMPS_OFF;
2911 sdata->needed_rx_chains = local->rx_chains;
2912 sdata->radar_required = true;
2913
2914 mutex_lock(&local->iflist_mtx);
2915 err = ieee80211_vif_use_channel(sdata, chandef,
2916 IEEE80211_CHANCTX_SHARED);
2917 mutex_unlock(&local->iflist_mtx);
2918 if (err)
2919 return err;
2920
2921 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2922 ieee80211_queue_delayed_work(&sdata->local->hw,
2923 &sdata->dfs_cac_timer_work, timeout);
2924
2925 return 0;
2926 }
2927
2928 static struct cfg80211_beacon_data *
2929 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2930 {
2931 struct cfg80211_beacon_data *new_beacon;
2932 u8 *pos;
2933 int len;
2934
2935 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2936 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2937 beacon->probe_resp_len;
2938
2939 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2940 if (!new_beacon)
2941 return NULL;
2942
2943 pos = (u8 *)(new_beacon + 1);
2944 if (beacon->head_len) {
2945 new_beacon->head_len = beacon->head_len;
2946 new_beacon->head = pos;
2947 memcpy(pos, beacon->head, beacon->head_len);
2948 pos += beacon->head_len;
2949 }
2950 if (beacon->tail_len) {
2951 new_beacon->tail_len = beacon->tail_len;
2952 new_beacon->tail = pos;
2953 memcpy(pos, beacon->tail, beacon->tail_len);
2954 pos += beacon->tail_len;
2955 }
2956 if (beacon->beacon_ies_len) {
2957 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2958 new_beacon->beacon_ies = pos;
2959 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2960 pos += beacon->beacon_ies_len;
2961 }
2962 if (beacon->proberesp_ies_len) {
2963 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2964 new_beacon->proberesp_ies = pos;
2965 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2966 pos += beacon->proberesp_ies_len;
2967 }
2968 if (beacon->assocresp_ies_len) {
2969 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2970 new_beacon->assocresp_ies = pos;
2971 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2972 pos += beacon->assocresp_ies_len;
2973 }
2974 if (beacon->probe_resp_len) {
2975 new_beacon->probe_resp_len = beacon->probe_resp_len;
2976 beacon->probe_resp = pos;
2977 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2978 pos += beacon->probe_resp_len;
2979 }
2980
2981 return new_beacon;
2982 }
2983
2984 void ieee80211_csa_finalize_work(struct work_struct *work)
2985 {
2986 struct ieee80211_sub_if_data *sdata =
2987 container_of(work, struct ieee80211_sub_if_data,
2988 csa_finalize_work);
2989 struct ieee80211_local *local = sdata->local;
2990 int err, changed = 0;
2991
2992 sdata_lock(sdata);
2993 /* AP might have been stopped while waiting for the lock. */
2994 if (!sdata->vif.csa_active)
2995 goto unlock;
2996
2997 if (!ieee80211_sdata_running(sdata))
2998 goto unlock;
2999
3000 sdata->radar_required = sdata->csa_radar_required;
3001 err = ieee80211_vif_change_channel(sdata, &changed);
3002 if (WARN_ON(err < 0))
3003 goto unlock;
3004
3005 if (!local->use_chanctx) {
3006 local->_oper_chandef = sdata->csa_chandef;
3007 ieee80211_hw_config(local, 0);
3008 }
3009
3010 ieee80211_bss_info_change_notify(sdata, changed);
3011
3012 sdata->vif.csa_active = false;
3013 switch (sdata->vif.type) {
3014 case NL80211_IFTYPE_AP:
3015 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3016 if (err < 0)
3017 goto unlock;
3018
3019 changed |= err;
3020 kfree(sdata->u.ap.next_beacon);
3021 sdata->u.ap.next_beacon = NULL;
3022
3023 ieee80211_bss_info_change_notify(sdata, err);
3024 break;
3025 case NL80211_IFTYPE_ADHOC:
3026 ieee80211_ibss_finish_csa(sdata);
3027 break;
3028 #ifdef CONFIG_MAC80211_MESH
3029 case NL80211_IFTYPE_MESH_POINT:
3030 err = ieee80211_mesh_finish_csa(sdata);
3031 if (err < 0)
3032 goto unlock;
3033 break;
3034 #endif
3035 default:
3036 WARN_ON(1);
3037 goto unlock;
3038 }
3039
3040 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3041 IEEE80211_MAX_QUEUE_MAP,
3042 IEEE80211_QUEUE_STOP_REASON_CSA);
3043
3044 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3045
3046 unlock:
3047 sdata_unlock(sdata);
3048 }
3049
3050 static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3051 struct cfg80211_csa_settings *params)
3052 {
3053 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3054 struct ieee80211_local *local = sdata->local;
3055 struct ieee80211_chanctx_conf *chanctx_conf;
3056 struct ieee80211_chanctx *chanctx;
3057 struct ieee80211_if_mesh __maybe_unused *ifmsh;
3058 int err, num_chanctx;
3059
3060 lockdep_assert_held(&sdata->wdev.mtx);
3061
3062 if (!list_empty(&local->roc_list) || local->scanning)
3063 return -EBUSY;
3064
3065 if (sdata->wdev.cac_started)
3066 return -EBUSY;
3067
3068 if (cfg80211_chandef_identical(&params->chandef,
3069 &sdata->vif.bss_conf.chandef))
3070 return -EINVAL;
3071
3072 rcu_read_lock();
3073 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3074 if (!chanctx_conf) {
3075 rcu_read_unlock();
3076 return -EBUSY;
3077 }
3078
3079 /* don't handle for multi-VIF cases */
3080 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
3081 if (chanctx->refcount > 1) {
3082 rcu_read_unlock();
3083 return -EBUSY;
3084 }
3085 num_chanctx = 0;
3086 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3087 num_chanctx++;
3088 rcu_read_unlock();
3089
3090 if (num_chanctx > 1)
3091 return -EBUSY;
3092
3093 /* don't allow another channel switch if one is already active. */
3094 if (sdata->vif.csa_active)
3095 return -EBUSY;
3096
3097 switch (sdata->vif.type) {
3098 case NL80211_IFTYPE_AP:
3099 sdata->csa_counter_offset_beacon =
3100 params->counter_offset_beacon;
3101 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3102 sdata->u.ap.next_beacon =
3103 cfg80211_beacon_dup(&params->beacon_after);
3104 if (!sdata->u.ap.next_beacon)
3105 return -ENOMEM;
3106
3107 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3108 if (err < 0) {
3109 kfree(sdata->u.ap.next_beacon);
3110 return err;
3111 }
3112 break;
3113 case NL80211_IFTYPE_ADHOC:
3114 if (!sdata->vif.bss_conf.ibss_joined)
3115 return -EINVAL;
3116
3117 if (params->chandef.width != sdata->u.ibss.chandef.width)
3118 return -EINVAL;
3119
3120 switch (params->chandef.width) {
3121 case NL80211_CHAN_WIDTH_40:
3122 if (cfg80211_get_chandef_type(&params->chandef) !=
3123 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3124 return -EINVAL;
3125 case NL80211_CHAN_WIDTH_5:
3126 case NL80211_CHAN_WIDTH_10:
3127 case NL80211_CHAN_WIDTH_20_NOHT:
3128 case NL80211_CHAN_WIDTH_20:
3129 break;
3130 default:
3131 return -EINVAL;
3132 }
3133
3134 /* changes into another band are not supported */
3135 if (sdata->u.ibss.chandef.chan->band !=
3136 params->chandef.chan->band)
3137 return -EINVAL;
3138
3139 err = ieee80211_ibss_csa_beacon(sdata, params);
3140 if (err < 0)
3141 return err;
3142 break;
3143 #ifdef CONFIG_MAC80211_MESH
3144 case NL80211_IFTYPE_MESH_POINT:
3145 ifmsh = &sdata->u.mesh;
3146
3147 if (!ifmsh->mesh_id)
3148 return -EINVAL;
3149
3150 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3151 return -EINVAL;
3152
3153 /* changes into another band are not supported */
3154 if (sdata->vif.bss_conf.chandef.chan->band !=
3155 params->chandef.chan->band)
3156 return -EINVAL;
3157
3158 ifmsh->chsw_init = true;
3159 if (!ifmsh->pre_value)
3160 ifmsh->pre_value = 1;
3161 else
3162 ifmsh->pre_value++;
3163
3164 err = ieee80211_mesh_csa_beacon(sdata, params, true);
3165 if (err < 0) {
3166 ifmsh->chsw_init = false;
3167 return err;
3168 }
3169 break;
3170 #endif
3171 default:
3172 return -EOPNOTSUPP;
3173 }
3174
3175 sdata->csa_radar_required = params->radar_required;
3176
3177 if (params->block_tx)
3178 ieee80211_stop_queues_by_reason(&local->hw,
3179 IEEE80211_MAX_QUEUE_MAP,
3180 IEEE80211_QUEUE_STOP_REASON_CSA);
3181
3182 sdata->csa_chandef = params->chandef;
3183 sdata->vif.csa_active = true;
3184
3185 ieee80211_bss_info_change_notify(sdata, err);
3186 drv_channel_switch_beacon(sdata, &params->chandef);
3187
3188 return 0;
3189 }
3190
3191 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3192 struct cfg80211_mgmt_tx_params *params,
3193 u64 *cookie)
3194 {
3195 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3196 struct ieee80211_local *local = sdata->local;
3197 struct sk_buff *skb;
3198 struct sta_info *sta;
3199 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3200 bool need_offchan = false;
3201 u32 flags;
3202 int ret;
3203
3204 if (params->dont_wait_for_ack)
3205 flags = IEEE80211_TX_CTL_NO_ACK;
3206 else
3207 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3208 IEEE80211_TX_CTL_REQ_TX_STATUS;
3209
3210 if (params->no_cck)
3211 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3212
3213 switch (sdata->vif.type) {
3214 case NL80211_IFTYPE_ADHOC:
3215 if (!sdata->vif.bss_conf.ibss_joined)
3216 need_offchan = true;
3217 /* fall through */
3218 #ifdef CONFIG_MAC80211_MESH
3219 case NL80211_IFTYPE_MESH_POINT:
3220 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3221 !sdata->u.mesh.mesh_id_len)
3222 need_offchan = true;
3223 /* fall through */
3224 #endif
3225 case NL80211_IFTYPE_AP:
3226 case NL80211_IFTYPE_AP_VLAN:
3227 case NL80211_IFTYPE_P2P_GO:
3228 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3229 !ieee80211_vif_is_mesh(&sdata->vif) &&
3230 !rcu_access_pointer(sdata->bss->beacon))
3231 need_offchan = true;
3232 if (!ieee80211_is_action(mgmt->frame_control) ||
3233 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3234 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3235 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3236 break;
3237 rcu_read_lock();
3238 sta = sta_info_get(sdata, mgmt->da);
3239 rcu_read_unlock();
3240 if (!sta)
3241 return -ENOLINK;
3242 break;
3243 case NL80211_IFTYPE_STATION:
3244 case NL80211_IFTYPE_P2P_CLIENT:
3245 if (!sdata->u.mgd.associated)
3246 need_offchan = true;
3247 break;
3248 case NL80211_IFTYPE_P2P_DEVICE:
3249 need_offchan = true;
3250 break;
3251 default:
3252 return -EOPNOTSUPP;
3253 }
3254
3255 /* configurations requiring offchan cannot work if no channel has been
3256 * specified
3257 */
3258 if (need_offchan && !params->chan)
3259 return -EINVAL;
3260
3261 mutex_lock(&local->mtx);
3262
3263 /* Check if the operating channel is the requested channel */
3264 if (!need_offchan) {
3265 struct ieee80211_chanctx_conf *chanctx_conf;
3266
3267 rcu_read_lock();
3268 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3269
3270 if (chanctx_conf) {
3271 need_offchan = params->chan &&
3272 (params->chan !=
3273 chanctx_conf->def.chan);
3274 } else if (!params->chan) {
3275 ret = -EINVAL;
3276 rcu_read_unlock();
3277 goto out_unlock;
3278 } else {
3279 need_offchan = true;
3280 }
3281 rcu_read_unlock();
3282 }
3283
3284 if (need_offchan && !params->offchan) {
3285 ret = -EBUSY;
3286 goto out_unlock;
3287 }
3288
3289 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3290 if (!skb) {
3291 ret = -ENOMEM;
3292 goto out_unlock;
3293 }
3294 skb_reserve(skb, local->hw.extra_tx_headroom);
3295
3296 memcpy(skb_put(skb, params->len), params->buf, params->len);
3297
3298 IEEE80211_SKB_CB(skb)->flags = flags;
3299
3300 skb->dev = sdata->dev;
3301
3302 if (!need_offchan) {
3303 *cookie = (unsigned long) skb;
3304 ieee80211_tx_skb(sdata, skb);
3305 ret = 0;
3306 goto out_unlock;
3307 }
3308
3309 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3310 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3311 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3312 IEEE80211_SKB_CB(skb)->hw_queue =
3313 local->hw.offchannel_tx_hw_queue;
3314
3315 /* This will handle all kinds of coalescing and immediate TX */
3316 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3317 params->wait, cookie, skb,
3318 IEEE80211_ROC_TYPE_MGMT_TX);
3319 if (ret)
3320 kfree_skb(skb);
3321 out_unlock:
3322 mutex_unlock(&local->mtx);
3323 return ret;
3324 }
3325
3326 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3327 struct wireless_dev *wdev,
3328 u64 cookie)
3329 {
3330 struct ieee80211_local *local = wiphy_priv(wiphy);
3331
3332 return ieee80211_cancel_roc(local, cookie, true);
3333 }
3334
3335 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3336 struct wireless_dev *wdev,
3337 u16 frame_type, bool reg)
3338 {
3339 struct ieee80211_local *local = wiphy_priv(wiphy);
3340
3341 switch (frame_type) {
3342 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3343 if (reg)
3344 local->probe_req_reg++;
3345 else
3346 local->probe_req_reg--;
3347
3348 if (!local->open_count)
3349 break;
3350
3351 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3352 break;
3353 default:
3354 break;
3355 }
3356 }
3357
3358 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3359 {
3360 struct ieee80211_local *local = wiphy_priv(wiphy);
3361
3362 if (local->started)
3363 return -EOPNOTSUPP;
3364
3365 return drv_set_antenna(local, tx_ant, rx_ant);
3366 }
3367
3368 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3369 {
3370 struct ieee80211_local *local = wiphy_priv(wiphy);
3371
3372 return drv_get_antenna(local, tx_ant, rx_ant);
3373 }
3374
3375 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3376 {
3377 struct ieee80211_local *local = wiphy_priv(wiphy);
3378
3379 return drv_set_ringparam(local, tx, rx);
3380 }
3381
3382 static void ieee80211_get_ringparam(struct wiphy *wiphy,
3383 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3384 {
3385 struct ieee80211_local *local = wiphy_priv(wiphy);
3386
3387 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3388 }
3389
3390 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3391 struct net_device *dev,
3392 struct cfg80211_gtk_rekey_data *data)
3393 {
3394 struct ieee80211_local *local = wiphy_priv(wiphy);
3395 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3396
3397 if (!local->ops->set_rekey_data)
3398 return -EOPNOTSUPP;
3399
3400 drv_set_rekey_data(local, sdata, data);
3401
3402 return 0;
3403 }
3404
3405 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3406 {
3407 u8 *pos = (void *)skb_put(skb, 7);
3408
3409 *pos++ = WLAN_EID_EXT_CAPABILITY;
3410 *pos++ = 5; /* len */
3411 *pos++ = 0x0;
3412 *pos++ = 0x0;
3413 *pos++ = 0x0;
3414 *pos++ = 0x0;
3415 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3416 }
3417
3418 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3419 {
3420 struct ieee80211_local *local = sdata->local;
3421 u16 capab;
3422
3423 capab = 0;
3424 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
3425 return capab;
3426
3427 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3428 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3429 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3430 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3431
3432 return capab;
3433 }
3434
3435 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3436 u8 *peer, u8 *bssid)
3437 {
3438 struct ieee80211_tdls_lnkie *lnkid;
3439
3440 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3441
3442 lnkid->ie_type = WLAN_EID_LINK_ID;
3443 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3444
3445 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3446 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3447 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3448 }
3449
3450 static int
3451 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3452 u8 *peer, u8 action_code, u8 dialog_token,
3453 u16 status_code, struct sk_buff *skb)
3454 {
3455 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3456 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3457 struct ieee80211_tdls_data *tf;
3458
3459 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3460
3461 memcpy(tf->da, peer, ETH_ALEN);
3462 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3463 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3464 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3465
3466 switch (action_code) {
3467 case WLAN_TDLS_SETUP_REQUEST:
3468 tf->category = WLAN_CATEGORY_TDLS;
3469 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3470
3471 skb_put(skb, sizeof(tf->u.setup_req));
3472 tf->u.setup_req.dialog_token = dialog_token;
3473 tf->u.setup_req.capability =
3474 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3475
3476 ieee80211_add_srates_ie(sdata, skb, false, band);
3477 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3478 ieee80211_tdls_add_ext_capab(skb);
3479 break;
3480 case WLAN_TDLS_SETUP_RESPONSE:
3481 tf->category = WLAN_CATEGORY_TDLS;
3482 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3483
3484 skb_put(skb, sizeof(tf->u.setup_resp));
3485 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3486 tf->u.setup_resp.dialog_token = dialog_token;
3487 tf->u.setup_resp.capability =
3488 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3489
3490 ieee80211_add_srates_ie(sdata, skb, false, band);
3491 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3492 ieee80211_tdls_add_ext_capab(skb);
3493 break;
3494 case WLAN_TDLS_SETUP_CONFIRM:
3495 tf->category = WLAN_CATEGORY_TDLS;
3496 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3497
3498 skb_put(skb, sizeof(tf->u.setup_cfm));
3499 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3500 tf->u.setup_cfm.dialog_token = dialog_token;
3501 break;
3502 case WLAN_TDLS_TEARDOWN:
3503 tf->category = WLAN_CATEGORY_TDLS;
3504 tf->action_code = WLAN_TDLS_TEARDOWN;
3505
3506 skb_put(skb, sizeof(tf->u.teardown));
3507 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3508 break;
3509 case WLAN_TDLS_DISCOVERY_REQUEST:
3510 tf->category = WLAN_CATEGORY_TDLS;
3511 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3512
3513 skb_put(skb, sizeof(tf->u.discover_req));
3514 tf->u.discover_req.dialog_token = dialog_token;
3515 break;
3516 default:
3517 return -EINVAL;
3518 }
3519
3520 return 0;
3521 }
3522
3523 static int
3524 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3525 u8 *peer, u8 action_code, u8 dialog_token,
3526 u16 status_code, struct sk_buff *skb)
3527 {
3528 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3529 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3530 struct ieee80211_mgmt *mgmt;
3531
3532 mgmt = (void *)skb_put(skb, 24);
3533 memset(mgmt, 0, 24);
3534 memcpy(mgmt->da, peer, ETH_ALEN);
3535 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3536 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3537
3538 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3539 IEEE80211_STYPE_ACTION);
3540
3541 switch (action_code) {
3542 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3543 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3544 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3545 mgmt->u.action.u.tdls_discover_resp.action_code =
3546 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3547 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3548 dialog_token;
3549 mgmt->u.action.u.tdls_discover_resp.capability =
3550 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3551
3552 ieee80211_add_srates_ie(sdata, skb, false, band);
3553 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3554 ieee80211_tdls_add_ext_capab(skb);
3555 break;
3556 default:
3557 return -EINVAL;
3558 }
3559
3560 return 0;
3561 }
3562
3563 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3564 u8 *peer, u8 action_code, u8 dialog_token,
3565 u16 status_code, const u8 *extra_ies,
3566 size_t extra_ies_len)
3567 {
3568 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3569 struct ieee80211_local *local = sdata->local;
3570 struct sk_buff *skb = NULL;
3571 bool send_direct;
3572 int ret;
3573
3574 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3575 return -ENOTSUPP;
3576
3577 /* make sure we are in managed mode, and associated */
3578 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3579 !sdata->u.mgd.associated)
3580 return -EINVAL;
3581
3582 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3583 action_code, peer);
3584
3585 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3586 max(sizeof(struct ieee80211_mgmt),
3587 sizeof(struct ieee80211_tdls_data)) +
3588 50 + /* supported rates */
3589 7 + /* ext capab */
3590 extra_ies_len +
3591 sizeof(struct ieee80211_tdls_lnkie));
3592 if (!skb)
3593 return -ENOMEM;
3594
3595 skb_reserve(skb, local->hw.extra_tx_headroom);
3596
3597 switch (action_code) {
3598 case WLAN_TDLS_SETUP_REQUEST:
3599 case WLAN_TDLS_SETUP_RESPONSE:
3600 case WLAN_TDLS_SETUP_CONFIRM:
3601 case WLAN_TDLS_TEARDOWN:
3602 case WLAN_TDLS_DISCOVERY_REQUEST:
3603 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3604 action_code, dialog_token,
3605 status_code, skb);
3606 send_direct = false;
3607 break;
3608 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3609 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3610 dialog_token, status_code,
3611 skb);
3612 send_direct = true;
3613 break;
3614 default:
3615 ret = -ENOTSUPP;
3616 break;
3617 }
3618
3619 if (ret < 0)
3620 goto fail;
3621
3622 if (extra_ies_len)
3623 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3624
3625 /* the TDLS link IE is always added last */
3626 switch (action_code) {
3627 case WLAN_TDLS_SETUP_REQUEST:
3628 case WLAN_TDLS_SETUP_CONFIRM:
3629 case WLAN_TDLS_TEARDOWN:
3630 case WLAN_TDLS_DISCOVERY_REQUEST:
3631 /* we are the initiator */
3632 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3633 sdata->u.mgd.bssid);
3634 break;
3635 case WLAN_TDLS_SETUP_RESPONSE:
3636 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3637 /* we are the responder */
3638 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3639 sdata->u.mgd.bssid);
3640 break;
3641 default:
3642 ret = -ENOTSUPP;
3643 goto fail;
3644 }
3645
3646 if (send_direct) {
3647 ieee80211_tx_skb(sdata, skb);
3648 return 0;
3649 }
3650
3651 /*
3652 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3653 * we should default to AC_VI.
3654 */
3655 switch (action_code) {
3656 case WLAN_TDLS_SETUP_REQUEST:
3657 case WLAN_TDLS_SETUP_RESPONSE:
3658 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3659 skb->priority = 2;
3660 break;
3661 default:
3662 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3663 skb->priority = 5;
3664 break;
3665 }
3666
3667 /* disable bottom halves when entering the Tx path */
3668 local_bh_disable();
3669 ret = ieee80211_subif_start_xmit(skb, dev);
3670 local_bh_enable();
3671
3672 return ret;
3673
3674 fail:
3675 dev_kfree_skb(skb);
3676 return ret;
3677 }
3678
3679 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3680 u8 *peer, enum nl80211_tdls_operation oper)
3681 {
3682 struct sta_info *sta;
3683 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3684
3685 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3686 return -ENOTSUPP;
3687
3688 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3689 return -EINVAL;
3690
3691 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3692
3693 switch (oper) {
3694 case NL80211_TDLS_ENABLE_LINK:
3695 rcu_read_lock();
3696 sta = sta_info_get(sdata, peer);
3697 if (!sta) {
3698 rcu_read_unlock();
3699 return -ENOLINK;
3700 }
3701
3702 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3703 rcu_read_unlock();
3704 break;
3705 case NL80211_TDLS_DISABLE_LINK:
3706 return sta_info_destroy_addr(sdata, peer);
3707 case NL80211_TDLS_TEARDOWN:
3708 case NL80211_TDLS_SETUP:
3709 case NL80211_TDLS_DISCOVERY_REQ:
3710 /* We don't support in-driver setup/teardown/discovery */
3711 return -ENOTSUPP;
3712 default:
3713 return -ENOTSUPP;
3714 }
3715
3716 return 0;
3717 }
3718
3719 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3720 const u8 *peer, u64 *cookie)
3721 {
3722 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3723 struct ieee80211_local *local = sdata->local;
3724 struct ieee80211_qos_hdr *nullfunc;
3725 struct sk_buff *skb;
3726 int size = sizeof(*nullfunc);
3727 __le16 fc;
3728 bool qos;
3729 struct ieee80211_tx_info *info;
3730 struct sta_info *sta;
3731 struct ieee80211_chanctx_conf *chanctx_conf;
3732 enum ieee80211_band band;
3733
3734 rcu_read_lock();
3735 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3736 if (WARN_ON(!chanctx_conf)) {
3737 rcu_read_unlock();
3738 return -EINVAL;
3739 }
3740 band = chanctx_conf->def.chan->band;
3741 sta = sta_info_get_bss(sdata, peer);
3742 if (sta) {
3743 qos = test_sta_flag(sta, WLAN_STA_WME);
3744 } else {
3745 rcu_read_unlock();
3746 return -ENOLINK;
3747 }
3748
3749 if (qos) {
3750 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3751 IEEE80211_STYPE_QOS_NULLFUNC |
3752 IEEE80211_FCTL_FROMDS);
3753 } else {
3754 size -= 2;
3755 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3756 IEEE80211_STYPE_NULLFUNC |
3757 IEEE80211_FCTL_FROMDS);
3758 }
3759
3760 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3761 if (!skb) {
3762 rcu_read_unlock();
3763 return -ENOMEM;
3764 }
3765
3766 skb->dev = dev;
3767
3768 skb_reserve(skb, local->hw.extra_tx_headroom);
3769
3770 nullfunc = (void *) skb_put(skb, size);
3771 nullfunc->frame_control = fc;
3772 nullfunc->duration_id = 0;
3773 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3774 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3775 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3776 nullfunc->seq_ctrl = 0;
3777
3778 info = IEEE80211_SKB_CB(skb);
3779
3780 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3781 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3782
3783 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3784 skb->priority = 7;
3785 if (qos)
3786 nullfunc->qos_ctrl = cpu_to_le16(7);
3787
3788 local_bh_disable();
3789 ieee80211_xmit(sdata, skb, band);
3790 local_bh_enable();
3791 rcu_read_unlock();
3792
3793 *cookie = (unsigned long) skb;
3794 return 0;
3795 }
3796
3797 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3798 struct wireless_dev *wdev,
3799 struct cfg80211_chan_def *chandef)
3800 {
3801 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3802 struct ieee80211_local *local = wiphy_priv(wiphy);
3803 struct ieee80211_chanctx_conf *chanctx_conf;
3804 int ret = -ENODATA;
3805
3806 rcu_read_lock();
3807 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3808 if (chanctx_conf) {
3809 *chandef = chanctx_conf->def;
3810 ret = 0;
3811 } else if (local->open_count > 0 &&
3812 local->open_count == local->monitors &&
3813 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3814 if (local->use_chanctx)
3815 *chandef = local->monitor_chandef;
3816 else
3817 *chandef = local->_oper_chandef;
3818 ret = 0;
3819 }
3820 rcu_read_unlock();
3821
3822 return ret;
3823 }
3824
3825 #ifdef CONFIG_PM
3826 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3827 {
3828 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3829 }
3830 #endif
3831
3832 struct cfg80211_ops mac80211_config_ops = {
3833 .add_virtual_intf = ieee80211_add_iface,
3834 .del_virtual_intf = ieee80211_del_iface,
3835 .change_virtual_intf = ieee80211_change_iface,
3836 .start_p2p_device = ieee80211_start_p2p_device,
3837 .stop_p2p_device = ieee80211_stop_p2p_device,
3838 .add_key = ieee80211_add_key,
3839 .del_key = ieee80211_del_key,
3840 .get_key = ieee80211_get_key,
3841 .set_default_key = ieee80211_config_default_key,
3842 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3843 .start_ap = ieee80211_start_ap,
3844 .change_beacon = ieee80211_change_beacon,
3845 .stop_ap = ieee80211_stop_ap,
3846 .add_station = ieee80211_add_station,
3847 .del_station = ieee80211_del_station,
3848 .change_station = ieee80211_change_station,
3849 .get_station = ieee80211_get_station,
3850 .dump_station = ieee80211_dump_station,
3851 .dump_survey = ieee80211_dump_survey,
3852 #ifdef CONFIG_MAC80211_MESH
3853 .add_mpath = ieee80211_add_mpath,
3854 .del_mpath = ieee80211_del_mpath,
3855 .change_mpath = ieee80211_change_mpath,
3856 .get_mpath = ieee80211_get_mpath,
3857 .dump_mpath = ieee80211_dump_mpath,
3858 .update_mesh_config = ieee80211_update_mesh_config,
3859 .get_mesh_config = ieee80211_get_mesh_config,
3860 .join_mesh = ieee80211_join_mesh,
3861 .leave_mesh = ieee80211_leave_mesh,
3862 #endif
3863 .change_bss = ieee80211_change_bss,
3864 .set_txq_params = ieee80211_set_txq_params,
3865 .set_monitor_channel = ieee80211_set_monitor_channel,
3866 .suspend = ieee80211_suspend,
3867 .resume = ieee80211_resume,
3868 .scan = ieee80211_scan,
3869 .sched_scan_start = ieee80211_sched_scan_start,
3870 .sched_scan_stop = ieee80211_sched_scan_stop,
3871 .auth = ieee80211_auth,
3872 .assoc = ieee80211_assoc,
3873 .deauth = ieee80211_deauth,
3874 .disassoc = ieee80211_disassoc,
3875 .join_ibss = ieee80211_join_ibss,
3876 .leave_ibss = ieee80211_leave_ibss,
3877 .set_mcast_rate = ieee80211_set_mcast_rate,
3878 .set_wiphy_params = ieee80211_set_wiphy_params,
3879 .set_tx_power = ieee80211_set_tx_power,
3880 .get_tx_power = ieee80211_get_tx_power,
3881 .set_wds_peer = ieee80211_set_wds_peer,
3882 .rfkill_poll = ieee80211_rfkill_poll,
3883 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3884 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3885 .set_power_mgmt = ieee80211_set_power_mgmt,
3886 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3887 .remain_on_channel = ieee80211_remain_on_channel,
3888 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3889 .mgmt_tx = ieee80211_mgmt_tx,
3890 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3891 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3892 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3893 .set_antenna = ieee80211_set_antenna,
3894 .get_antenna = ieee80211_get_antenna,
3895 .set_ringparam = ieee80211_set_ringparam,
3896 .get_ringparam = ieee80211_get_ringparam,
3897 .set_rekey_data = ieee80211_set_rekey_data,
3898 .tdls_oper = ieee80211_tdls_oper,
3899 .tdls_mgmt = ieee80211_tdls_mgmt,
3900 .probe_client = ieee80211_probe_client,
3901 .set_noack_map = ieee80211_set_noack_map,
3902 #ifdef CONFIG_PM
3903 .set_wakeup = ieee80211_set_wakeup,
3904 #endif
3905 .get_et_sset_count = ieee80211_get_et_sset_count,
3906 .get_et_stats = ieee80211_get_et_stats,
3907 .get_et_strings = ieee80211_get_et_strings,
3908 .get_channel = ieee80211_cfg_get_channel,
3909 .start_radar_detection = ieee80211_start_radar_detection,
3910 .channel_switch = ieee80211_channel_switch,
3911 };
Linux kernel - Deliverables
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