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Merge tag 'nfc-next-3.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo...
[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 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
113 int ret;
114
115 mutex_lock(&sdata->local->chanctx_mtx);
116 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
117 mutex_unlock(&sdata->local->chanctx_mtx);
118 if (ret < 0)
119 return ret;
120
121 return ieee80211_do_open(wdev, true);
122 }
123
124 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
125 struct wireless_dev *wdev)
126 {
127 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
128 }
129
130 static int ieee80211_set_noack_map(struct wiphy *wiphy,
131 struct net_device *dev,
132 u16 noack_map)
133 {
134 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
135
136 sdata->noack_map = noack_map;
137 return 0;
138 }
139
140 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
141 u8 key_idx, bool pairwise, const u8 *mac_addr,
142 struct key_params *params)
143 {
144 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
145 struct ieee80211_local *local = sdata->local;
146 struct sta_info *sta = NULL;
147 const struct ieee80211_cipher_scheme *cs = NULL;
148 struct ieee80211_key *key;
149 int err;
150
151 if (!ieee80211_sdata_running(sdata))
152 return -ENETDOWN;
153
154 /* reject WEP and TKIP keys if WEP failed to initialize */
155 switch (params->cipher) {
156 case WLAN_CIPHER_SUITE_WEP40:
157 case WLAN_CIPHER_SUITE_TKIP:
158 case WLAN_CIPHER_SUITE_WEP104:
159 if (IS_ERR(local->wep_tx_tfm))
160 return -EINVAL;
161 break;
162 case WLAN_CIPHER_SUITE_CCMP:
163 case WLAN_CIPHER_SUITE_AES_CMAC:
164 case WLAN_CIPHER_SUITE_GCMP:
165 break;
166 default:
167 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
168 break;
169 }
170
171 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
172 params->key, params->seq_len, params->seq,
173 cs);
174 if (IS_ERR(key))
175 return PTR_ERR(key);
176
177 if (pairwise)
178 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
179
180 mutex_lock(&local->sta_mtx);
181
182 if (mac_addr) {
183 if (ieee80211_vif_is_mesh(&sdata->vif))
184 sta = sta_info_get(sdata, mac_addr);
185 else
186 sta = sta_info_get_bss(sdata, mac_addr);
187 /*
188 * The ASSOC test makes sure the driver is ready to
189 * receive the key. When wpa_supplicant has roamed
190 * using FT, it attempts to set the key before
191 * association has completed, this rejects that attempt
192 * so it will set the key again after assocation.
193 *
194 * TODO: accept the key if we have a station entry and
195 * add it to the device after the station.
196 */
197 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
198 ieee80211_key_free_unused(key);
199 err = -ENOENT;
200 goto out_unlock;
201 }
202 }
203
204 switch (sdata->vif.type) {
205 case NL80211_IFTYPE_STATION:
206 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
207 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
208 break;
209 case NL80211_IFTYPE_AP:
210 case NL80211_IFTYPE_AP_VLAN:
211 /* Keys without a station are used for TX only */
212 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
213 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
214 break;
215 case NL80211_IFTYPE_ADHOC:
216 /* no MFP (yet) */
217 break;
218 case NL80211_IFTYPE_MESH_POINT:
219 #ifdef CONFIG_MAC80211_MESH
220 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
221 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
222 break;
223 #endif
224 case NL80211_IFTYPE_WDS:
225 case NL80211_IFTYPE_MONITOR:
226 case NL80211_IFTYPE_P2P_DEVICE:
227 case NL80211_IFTYPE_UNSPECIFIED:
228 case NUM_NL80211_IFTYPES:
229 case NL80211_IFTYPE_P2P_CLIENT:
230 case NL80211_IFTYPE_P2P_GO:
231 /* shouldn't happen */
232 WARN_ON_ONCE(1);
233 break;
234 }
235
236 if (sta)
237 sta->cipher_scheme = cs;
238
239 err = ieee80211_key_link(key, sdata, sta);
240
241 out_unlock:
242 mutex_unlock(&local->sta_mtx);
243
244 return err;
245 }
246
247 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
248 u8 key_idx, bool pairwise, const u8 *mac_addr)
249 {
250 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
251 struct ieee80211_local *local = sdata->local;
252 struct sta_info *sta;
253 struct ieee80211_key *key = NULL;
254 int ret;
255
256 mutex_lock(&local->sta_mtx);
257 mutex_lock(&local->key_mtx);
258
259 if (mac_addr) {
260 ret = -ENOENT;
261
262 sta = sta_info_get_bss(sdata, mac_addr);
263 if (!sta)
264 goto out_unlock;
265
266 if (pairwise)
267 key = key_mtx_dereference(local, sta->ptk[key_idx]);
268 else
269 key = key_mtx_dereference(local, sta->gtk[key_idx]);
270 } else
271 key = key_mtx_dereference(local, sdata->keys[key_idx]);
272
273 if (!key) {
274 ret = -ENOENT;
275 goto out_unlock;
276 }
277
278 ieee80211_key_free(key, true);
279
280 ret = 0;
281 out_unlock:
282 mutex_unlock(&local->key_mtx);
283 mutex_unlock(&local->sta_mtx);
284
285 return ret;
286 }
287
288 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
289 u8 key_idx, bool pairwise, const u8 *mac_addr,
290 void *cookie,
291 void (*callback)(void *cookie,
292 struct key_params *params))
293 {
294 struct ieee80211_sub_if_data *sdata;
295 struct sta_info *sta = NULL;
296 u8 seq[6] = {0};
297 struct key_params params;
298 struct ieee80211_key *key = NULL;
299 u64 pn64;
300 u32 iv32;
301 u16 iv16;
302 int err = -ENOENT;
303
304 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
305
306 rcu_read_lock();
307
308 if (mac_addr) {
309 sta = sta_info_get_bss(sdata, mac_addr);
310 if (!sta)
311 goto out;
312
313 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
314 key = rcu_dereference(sta->ptk[key_idx]);
315 else if (!pairwise &&
316 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
317 key = rcu_dereference(sta->gtk[key_idx]);
318 } else
319 key = rcu_dereference(sdata->keys[key_idx]);
320
321 if (!key)
322 goto out;
323
324 memset(&params, 0, sizeof(params));
325
326 params.cipher = key->conf.cipher;
327
328 switch (key->conf.cipher) {
329 case WLAN_CIPHER_SUITE_TKIP:
330 iv32 = key->u.tkip.tx.iv32;
331 iv16 = key->u.tkip.tx.iv16;
332
333 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
334 drv_get_tkip_seq(sdata->local,
335 key->conf.hw_key_idx,
336 &iv32, &iv16);
337
338 seq[0] = iv16 & 0xff;
339 seq[1] = (iv16 >> 8) & 0xff;
340 seq[2] = iv32 & 0xff;
341 seq[3] = (iv32 >> 8) & 0xff;
342 seq[4] = (iv32 >> 16) & 0xff;
343 seq[5] = (iv32 >> 24) & 0xff;
344 params.seq = seq;
345 params.seq_len = 6;
346 break;
347 case WLAN_CIPHER_SUITE_CCMP:
348 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
349 seq[0] = pn64;
350 seq[1] = pn64 >> 8;
351 seq[2] = pn64 >> 16;
352 seq[3] = pn64 >> 24;
353 seq[4] = pn64 >> 32;
354 seq[5] = pn64 >> 40;
355 params.seq = seq;
356 params.seq_len = 6;
357 break;
358 case WLAN_CIPHER_SUITE_AES_CMAC:
359 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
360 seq[0] = pn64;
361 seq[1] = pn64 >> 8;
362 seq[2] = pn64 >> 16;
363 seq[3] = pn64 >> 24;
364 seq[4] = pn64 >> 32;
365 seq[5] = pn64 >> 40;
366 params.seq = seq;
367 params.seq_len = 6;
368 break;
369 }
370
371 params.key = key->conf.key;
372 params.key_len = key->conf.keylen;
373
374 callback(cookie, &params);
375 err = 0;
376
377 out:
378 rcu_read_unlock();
379 return err;
380 }
381
382 static int ieee80211_config_default_key(struct wiphy *wiphy,
383 struct net_device *dev,
384 u8 key_idx, bool uni,
385 bool multi)
386 {
387 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
388
389 ieee80211_set_default_key(sdata, key_idx, uni, multi);
390
391 return 0;
392 }
393
394 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
395 struct net_device *dev,
396 u8 key_idx)
397 {
398 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
399
400 ieee80211_set_default_mgmt_key(sdata, key_idx);
401
402 return 0;
403 }
404
405 void sta_set_rate_info_tx(struct sta_info *sta,
406 const struct ieee80211_tx_rate *rate,
407 struct rate_info *rinfo)
408 {
409 rinfo->flags = 0;
410 if (rate->flags & IEEE80211_TX_RC_MCS) {
411 rinfo->flags |= RATE_INFO_FLAGS_MCS;
412 rinfo->mcs = rate->idx;
413 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
414 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
415 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
416 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
417 } else {
418 struct ieee80211_supported_band *sband;
419 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
420 u16 brate;
421
422 sband = sta->local->hw.wiphy->bands[
423 ieee80211_get_sdata_band(sta->sdata)];
424 brate = sband->bitrates[rate->idx].bitrate;
425 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
426 }
427 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
428 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
429 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
430 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
431 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
432 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
433 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
434 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
435 }
436
437 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
438 {
439 rinfo->flags = 0;
440
441 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
442 rinfo->flags |= RATE_INFO_FLAGS_MCS;
443 rinfo->mcs = sta->last_rx_rate_idx;
444 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
445 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
446 rinfo->nss = sta->last_rx_rate_vht_nss;
447 rinfo->mcs = sta->last_rx_rate_idx;
448 } else {
449 struct ieee80211_supported_band *sband;
450 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
451 u16 brate;
452
453 sband = sta->local->hw.wiphy->bands[
454 ieee80211_get_sdata_band(sta->sdata)];
455 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
456 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
457 }
458
459 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
460 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
461 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
462 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
463 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
464 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
465 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80P80MHZ)
466 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
467 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
468 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
469 }
470
471 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
472 {
473 struct ieee80211_sub_if_data *sdata = sta->sdata;
474 struct ieee80211_local *local = sdata->local;
475 struct timespec uptime;
476 u64 packets = 0;
477 int i, ac;
478
479 sinfo->generation = sdata->local->sta_generation;
480
481 sinfo->filled = STATION_INFO_INACTIVE_TIME |
482 STATION_INFO_RX_BYTES64 |
483 STATION_INFO_TX_BYTES64 |
484 STATION_INFO_RX_PACKETS |
485 STATION_INFO_TX_PACKETS |
486 STATION_INFO_TX_RETRIES |
487 STATION_INFO_TX_FAILED |
488 STATION_INFO_TX_BITRATE |
489 STATION_INFO_RX_BITRATE |
490 STATION_INFO_RX_DROP_MISC |
491 STATION_INFO_BSS_PARAM |
492 STATION_INFO_CONNECTED_TIME |
493 STATION_INFO_STA_FLAGS |
494 STATION_INFO_BEACON_LOSS_COUNT;
495
496 do_posix_clock_monotonic_gettime(&uptime);
497 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
498
499 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
500 sinfo->tx_bytes = 0;
501 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
502 sinfo->tx_bytes += sta->tx_bytes[ac];
503 packets += sta->tx_packets[ac];
504 }
505 sinfo->tx_packets = packets;
506 sinfo->rx_bytes = sta->rx_bytes;
507 sinfo->rx_packets = sta->rx_packets;
508 sinfo->tx_retries = sta->tx_retry_count;
509 sinfo->tx_failed = sta->tx_retry_failed;
510 sinfo->rx_dropped_misc = sta->rx_dropped;
511 sinfo->beacon_loss_count = sta->beacon_loss_count;
512
513 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
514 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
515 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
516 if (!local->ops->get_rssi ||
517 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
518 sinfo->signal = (s8)sta->last_signal;
519 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
520 }
521 if (sta->chains) {
522 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
523 STATION_INFO_CHAIN_SIGNAL_AVG;
524
525 sinfo->chains = sta->chains;
526 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
527 sinfo->chain_signal[i] = sta->chain_signal_last[i];
528 sinfo->chain_signal_avg[i] =
529 (s8) -ewma_read(&sta->chain_signal_avg[i]);
530 }
531 }
532
533 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
534 sta_set_rate_info_rx(sta, &sinfo->rxrate);
535
536 if (ieee80211_vif_is_mesh(&sdata->vif)) {
537 #ifdef CONFIG_MAC80211_MESH
538 sinfo->filled |= STATION_INFO_LLID |
539 STATION_INFO_PLID |
540 STATION_INFO_PLINK_STATE |
541 STATION_INFO_LOCAL_PM |
542 STATION_INFO_PEER_PM |
543 STATION_INFO_NONPEER_PM;
544
545 sinfo->llid = sta->llid;
546 sinfo->plid = sta->plid;
547 sinfo->plink_state = sta->plink_state;
548 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
549 sinfo->filled |= STATION_INFO_T_OFFSET;
550 sinfo->t_offset = sta->t_offset;
551 }
552 sinfo->local_pm = sta->local_pm;
553 sinfo->peer_pm = sta->peer_pm;
554 sinfo->nonpeer_pm = sta->nonpeer_pm;
555 #endif
556 }
557
558 sinfo->bss_param.flags = 0;
559 if (sdata->vif.bss_conf.use_cts_prot)
560 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
561 if (sdata->vif.bss_conf.use_short_preamble)
562 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
563 if (sdata->vif.bss_conf.use_short_slot)
564 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
565 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
566 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
567
568 sinfo->sta_flags.set = 0;
569 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
570 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
571 BIT(NL80211_STA_FLAG_WME) |
572 BIT(NL80211_STA_FLAG_MFP) |
573 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
574 BIT(NL80211_STA_FLAG_ASSOCIATED) |
575 BIT(NL80211_STA_FLAG_TDLS_PEER);
576 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
577 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
578 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
579 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
580 if (test_sta_flag(sta, WLAN_STA_WME))
581 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
582 if (test_sta_flag(sta, WLAN_STA_MFP))
583 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
584 if (test_sta_flag(sta, WLAN_STA_AUTH))
585 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
586 if (test_sta_flag(sta, WLAN_STA_ASSOC))
587 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
588 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
589 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
590 }
591
592 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
593 "rx_packets", "rx_bytes", "wep_weak_iv_count",
594 "rx_duplicates", "rx_fragments", "rx_dropped",
595 "tx_packets", "tx_bytes", "tx_fragments",
596 "tx_filtered", "tx_retry_failed", "tx_retries",
597 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
598 "channel", "noise", "ch_time", "ch_time_busy",
599 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
600 };
601 #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
602
603 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
604 struct net_device *dev,
605 int sset)
606 {
607 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
608 int rv = 0;
609
610 if (sset == ETH_SS_STATS)
611 rv += STA_STATS_LEN;
612
613 rv += drv_get_et_sset_count(sdata, sset);
614
615 if (rv == 0)
616 return -EOPNOTSUPP;
617 return rv;
618 }
619
620 static void ieee80211_get_et_stats(struct wiphy *wiphy,
621 struct net_device *dev,
622 struct ethtool_stats *stats,
623 u64 *data)
624 {
625 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
626 struct ieee80211_chanctx_conf *chanctx_conf;
627 struct ieee80211_channel *channel;
628 struct sta_info *sta;
629 struct ieee80211_local *local = sdata->local;
630 struct station_info sinfo;
631 struct survey_info survey;
632 int i, q;
633 #define STA_STATS_SURVEY_LEN 7
634
635 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
636
637 #define ADD_STA_STATS(sta) \
638 do { \
639 data[i++] += sta->rx_packets; \
640 data[i++] += sta->rx_bytes; \
641 data[i++] += sta->wep_weak_iv_count; \
642 data[i++] += sta->num_duplicates; \
643 data[i++] += sta->rx_fragments; \
644 data[i++] += sta->rx_dropped; \
645 \
646 data[i++] += sinfo.tx_packets; \
647 data[i++] += sinfo.tx_bytes; \
648 data[i++] += sta->tx_fragments; \
649 data[i++] += sta->tx_filtered_count; \
650 data[i++] += sta->tx_retry_failed; \
651 data[i++] += sta->tx_retry_count; \
652 data[i++] += sta->beacon_loss_count; \
653 } while (0)
654
655 /* For Managed stations, find the single station based on BSSID
656 * and use that. For interface types, iterate through all available
657 * stations and add stats for any station that is assigned to this
658 * network device.
659 */
660
661 mutex_lock(&local->sta_mtx);
662
663 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
664 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
665
666 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
667 goto do_survey;
668
669 sinfo.filled = 0;
670 sta_set_sinfo(sta, &sinfo);
671
672 i = 0;
673 ADD_STA_STATS(sta);
674
675 data[i++] = sta->sta_state;
676
677
678 if (sinfo.filled & STATION_INFO_TX_BITRATE)
679 data[i] = 100000 *
680 cfg80211_calculate_bitrate(&sinfo.txrate);
681 i++;
682 if (sinfo.filled & STATION_INFO_RX_BITRATE)
683 data[i] = 100000 *
684 cfg80211_calculate_bitrate(&sinfo.rxrate);
685 i++;
686
687 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
688 data[i] = (u8)sinfo.signal_avg;
689 i++;
690 } else {
691 list_for_each_entry(sta, &local->sta_list, list) {
692 /* Make sure this station belongs to the proper dev */
693 if (sta->sdata->dev != dev)
694 continue;
695
696 sinfo.filled = 0;
697 sta_set_sinfo(sta, &sinfo);
698 i = 0;
699 ADD_STA_STATS(sta);
700 }
701 }
702
703 do_survey:
704 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
705 /* Get survey stats for current channel */
706 survey.filled = 0;
707
708 rcu_read_lock();
709 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
710 if (chanctx_conf)
711 channel = chanctx_conf->def.chan;
712 else
713 channel = NULL;
714 rcu_read_unlock();
715
716 if (channel) {
717 q = 0;
718 do {
719 survey.filled = 0;
720 if (drv_get_survey(local, q, &survey) != 0) {
721 survey.filled = 0;
722 break;
723 }
724 q++;
725 } while (channel != survey.channel);
726 }
727
728 if (survey.filled)
729 data[i++] = survey.channel->center_freq;
730 else
731 data[i++] = 0;
732 if (survey.filled & SURVEY_INFO_NOISE_DBM)
733 data[i++] = (u8)survey.noise;
734 else
735 data[i++] = -1LL;
736 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
737 data[i++] = survey.channel_time;
738 else
739 data[i++] = -1LL;
740 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
741 data[i++] = survey.channel_time_busy;
742 else
743 data[i++] = -1LL;
744 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
745 data[i++] = survey.channel_time_ext_busy;
746 else
747 data[i++] = -1LL;
748 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
749 data[i++] = survey.channel_time_rx;
750 else
751 data[i++] = -1LL;
752 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
753 data[i++] = survey.channel_time_tx;
754 else
755 data[i++] = -1LL;
756
757 mutex_unlock(&local->sta_mtx);
758
759 if (WARN_ON(i != STA_STATS_LEN))
760 return;
761
762 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
763 }
764
765 static void ieee80211_get_et_strings(struct wiphy *wiphy,
766 struct net_device *dev,
767 u32 sset, u8 *data)
768 {
769 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
770 int sz_sta_stats = 0;
771
772 if (sset == ETH_SS_STATS) {
773 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
774 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
775 }
776 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
777 }
778
779 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
780 int idx, u8 *mac, struct station_info *sinfo)
781 {
782 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
783 struct ieee80211_local *local = sdata->local;
784 struct sta_info *sta;
785 int ret = -ENOENT;
786
787 mutex_lock(&local->sta_mtx);
788
789 sta = sta_info_get_by_idx(sdata, idx);
790 if (sta) {
791 ret = 0;
792 memcpy(mac, sta->sta.addr, ETH_ALEN);
793 sta_set_sinfo(sta, sinfo);
794 }
795
796 mutex_unlock(&local->sta_mtx);
797
798 return ret;
799 }
800
801 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
802 int idx, struct survey_info *survey)
803 {
804 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
805
806 return drv_get_survey(local, idx, survey);
807 }
808
809 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
810 u8 *mac, struct station_info *sinfo)
811 {
812 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
813 struct ieee80211_local *local = sdata->local;
814 struct sta_info *sta;
815 int ret = -ENOENT;
816
817 mutex_lock(&local->sta_mtx);
818
819 sta = sta_info_get_bss(sdata, mac);
820 if (sta) {
821 ret = 0;
822 sta_set_sinfo(sta, sinfo);
823 }
824
825 mutex_unlock(&local->sta_mtx);
826
827 return ret;
828 }
829
830 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
831 struct cfg80211_chan_def *chandef)
832 {
833 struct ieee80211_local *local = wiphy_priv(wiphy);
834 struct ieee80211_sub_if_data *sdata;
835 int ret = 0;
836
837 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
838 return 0;
839
840 mutex_lock(&local->mtx);
841 mutex_lock(&local->iflist_mtx);
842 if (local->use_chanctx) {
843 sdata = rcu_dereference_protected(
844 local->monitor_sdata,
845 lockdep_is_held(&local->iflist_mtx));
846 if (sdata) {
847 ieee80211_vif_release_channel(sdata);
848 ret = ieee80211_vif_use_channel(sdata, chandef,
849 IEEE80211_CHANCTX_EXCLUSIVE);
850 }
851 } else if (local->open_count == local->monitors) {
852 local->_oper_chandef = *chandef;
853 ieee80211_hw_config(local, 0);
854 }
855
856 if (ret == 0)
857 local->monitor_chandef = *chandef;
858 mutex_unlock(&local->iflist_mtx);
859 mutex_unlock(&local->mtx);
860
861 return ret;
862 }
863
864 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
865 const u8 *resp, size_t resp_len)
866 {
867 struct probe_resp *new, *old;
868
869 if (!resp || !resp_len)
870 return 1;
871
872 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
873
874 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
875 if (!new)
876 return -ENOMEM;
877
878 new->len = resp_len;
879 memcpy(new->data, resp, resp_len);
880
881 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
882 if (old)
883 kfree_rcu(old, rcu_head);
884
885 return 0;
886 }
887
888 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
889 struct cfg80211_beacon_data *params)
890 {
891 struct beacon_data *new, *old;
892 int new_head_len, new_tail_len;
893 int size, err;
894 u32 changed = BSS_CHANGED_BEACON;
895
896 old = sdata_dereference(sdata->u.ap.beacon, sdata);
897
898
899 /* Need to have a beacon head if we don't have one yet */
900 if (!params->head && !old)
901 return -EINVAL;
902
903 /* new or old head? */
904 if (params->head)
905 new_head_len = params->head_len;
906 else
907 new_head_len = old->head_len;
908
909 /* new or old tail? */
910 if (params->tail || !old)
911 /* params->tail_len will be zero for !params->tail */
912 new_tail_len = params->tail_len;
913 else
914 new_tail_len = old->tail_len;
915
916 size = sizeof(*new) + new_head_len + new_tail_len;
917
918 new = kzalloc(size, GFP_KERNEL);
919 if (!new)
920 return -ENOMEM;
921
922 /* start filling the new info now */
923
924 /*
925 * pointers go into the block we allocated,
926 * memory is | beacon_data | head | tail |
927 */
928 new->head = ((u8 *) new) + sizeof(*new);
929 new->tail = new->head + new_head_len;
930 new->head_len = new_head_len;
931 new->tail_len = new_tail_len;
932
933 /* copy in head */
934 if (params->head)
935 memcpy(new->head, params->head, new_head_len);
936 else
937 memcpy(new->head, old->head, new_head_len);
938
939 /* copy in optional tail */
940 if (params->tail)
941 memcpy(new->tail, params->tail, new_tail_len);
942 else
943 if (old)
944 memcpy(new->tail, old->tail, new_tail_len);
945
946 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
947 params->probe_resp_len);
948 if (err < 0)
949 return err;
950 if (err == 0)
951 changed |= BSS_CHANGED_AP_PROBE_RESP;
952
953 rcu_assign_pointer(sdata->u.ap.beacon, new);
954
955 if (old)
956 kfree_rcu(old, rcu_head);
957
958 return changed;
959 }
960
961 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
962 struct cfg80211_ap_settings *params)
963 {
964 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
965 struct ieee80211_local *local = sdata->local;
966 struct beacon_data *old;
967 struct ieee80211_sub_if_data *vlan;
968 u32 changed = BSS_CHANGED_BEACON_INT |
969 BSS_CHANGED_BEACON_ENABLED |
970 BSS_CHANGED_BEACON |
971 BSS_CHANGED_SSID |
972 BSS_CHANGED_P2P_PS;
973 int err;
974
975 old = sdata_dereference(sdata->u.ap.beacon, sdata);
976 if (old)
977 return -EALREADY;
978
979 /* TODO: make hostapd tell us what it wants */
980 sdata->smps_mode = IEEE80211_SMPS_OFF;
981 sdata->needed_rx_chains = sdata->local->rx_chains;
982
983 mutex_lock(&local->mtx);
984 err = ieee80211_vif_use_channel(sdata, &params->chandef,
985 IEEE80211_CHANCTX_SHARED);
986 if (!err)
987 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
988 mutex_unlock(&local->mtx);
989 if (err)
990 return err;
991
992 /*
993 * Apply control port protocol, this allows us to
994 * not encrypt dynamic WEP control frames.
995 */
996 sdata->control_port_protocol = params->crypto.control_port_ethertype;
997 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
998 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
999 &params->crypto,
1000 sdata->vif.type);
1001
1002 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
1003 vlan->control_port_protocol =
1004 params->crypto.control_port_ethertype;
1005 vlan->control_port_no_encrypt =
1006 params->crypto.control_port_no_encrypt;
1007 vlan->encrypt_headroom =
1008 ieee80211_cs_headroom(sdata->local,
1009 &params->crypto,
1010 vlan->vif.type);
1011 }
1012
1013 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1014 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1015 sdata->vif.bss_conf.enable_beacon = true;
1016
1017 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1018 if (params->ssid_len)
1019 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1020 params->ssid_len);
1021 sdata->vif.bss_conf.hidden_ssid =
1022 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1023
1024 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1025 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1026 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1027 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1028 if (params->p2p_opp_ps)
1029 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1030 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1031
1032 err = ieee80211_assign_beacon(sdata, &params->beacon);
1033 if (err < 0) {
1034 ieee80211_vif_release_channel(sdata);
1035 return err;
1036 }
1037 changed |= err;
1038
1039 err = drv_start_ap(sdata->local, sdata);
1040 if (err) {
1041 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1042
1043 if (old)
1044 kfree_rcu(old, rcu_head);
1045 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1046 ieee80211_vif_release_channel(sdata);
1047 return err;
1048 }
1049
1050 ieee80211_recalc_dtim(local, sdata);
1051 ieee80211_bss_info_change_notify(sdata, changed);
1052
1053 netif_carrier_on(dev);
1054 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1055 netif_carrier_on(vlan->dev);
1056
1057 return 0;
1058 }
1059
1060 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1061 struct cfg80211_beacon_data *params)
1062 {
1063 struct ieee80211_sub_if_data *sdata;
1064 struct beacon_data *old;
1065 int err;
1066
1067 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1068 sdata_assert_lock(sdata);
1069
1070 /* don't allow changing the beacon while CSA is in place - offset
1071 * of channel switch counter may change
1072 */
1073 if (sdata->vif.csa_active)
1074 return -EBUSY;
1075
1076 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1077 if (!old)
1078 return -ENOENT;
1079
1080 err = ieee80211_assign_beacon(sdata, params);
1081 if (err < 0)
1082 return err;
1083 ieee80211_bss_info_change_notify(sdata, err);
1084 return 0;
1085 }
1086
1087 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1088 {
1089 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1090 struct ieee80211_sub_if_data *vlan;
1091 struct ieee80211_local *local = sdata->local;
1092 struct beacon_data *old_beacon;
1093 struct probe_resp *old_probe_resp;
1094 struct cfg80211_chan_def chandef;
1095
1096 sdata_assert_lock(sdata);
1097
1098 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1099 if (!old_beacon)
1100 return -ENOENT;
1101 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1102
1103 /* abort any running channel switch */
1104 sdata->vif.csa_active = false;
1105 kfree(sdata->u.ap.next_beacon);
1106 sdata->u.ap.next_beacon = NULL;
1107
1108 /* turn off carrier for this interface and dependent VLANs */
1109 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1110 netif_carrier_off(vlan->dev);
1111 netif_carrier_off(dev);
1112
1113 /* remove beacon and probe response */
1114 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1115 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1116 kfree_rcu(old_beacon, rcu_head);
1117 if (old_probe_resp)
1118 kfree_rcu(old_probe_resp, rcu_head);
1119 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1120
1121 __sta_info_flush(sdata, true);
1122 ieee80211_free_keys(sdata, true);
1123
1124 sdata->vif.bss_conf.enable_beacon = false;
1125 sdata->vif.bss_conf.ssid_len = 0;
1126 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1127 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1128
1129 if (sdata->wdev.cac_started) {
1130 chandef = sdata->vif.bss_conf.chandef;
1131 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1132 cfg80211_cac_event(sdata->dev, &chandef,
1133 NL80211_RADAR_CAC_ABORTED,
1134 GFP_KERNEL);
1135 }
1136
1137 drv_stop_ap(sdata->local, sdata);
1138
1139 /* free all potentially still buffered bcast frames */
1140 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1141 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1142
1143 mutex_lock(&local->mtx);
1144 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1145 ieee80211_vif_release_channel(sdata);
1146 mutex_unlock(&local->mtx);
1147
1148 return 0;
1149 }
1150
1151 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1152 struct iapp_layer2_update {
1153 u8 da[ETH_ALEN]; /* broadcast */
1154 u8 sa[ETH_ALEN]; /* STA addr */
1155 __be16 len; /* 6 */
1156 u8 dsap; /* 0 */
1157 u8 ssap; /* 0 */
1158 u8 control;
1159 u8 xid_info[3];
1160 } __packed;
1161
1162 static void ieee80211_send_layer2_update(struct sta_info *sta)
1163 {
1164 struct iapp_layer2_update *msg;
1165 struct sk_buff *skb;
1166
1167 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1168 * bridge devices */
1169
1170 skb = dev_alloc_skb(sizeof(*msg));
1171 if (!skb)
1172 return;
1173 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1174
1175 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1176 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1177
1178 eth_broadcast_addr(msg->da);
1179 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1180 msg->len = htons(6);
1181 msg->dsap = 0;
1182 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1183 msg->control = 0xaf; /* XID response lsb.1111F101.
1184 * F=0 (no poll command; unsolicited frame) */
1185 msg->xid_info[0] = 0x81; /* XID format identifier */
1186 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1187 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1188
1189 skb->dev = sta->sdata->dev;
1190 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1191 memset(skb->cb, 0, sizeof(skb->cb));
1192 netif_rx_ni(skb);
1193 }
1194
1195 static int sta_apply_auth_flags(struct ieee80211_local *local,
1196 struct sta_info *sta,
1197 u32 mask, u32 set)
1198 {
1199 int ret;
1200
1201 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1202 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1203 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1204 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1205 if (ret)
1206 return ret;
1207 }
1208
1209 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1210 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1211 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1212 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1213 if (ret)
1214 return ret;
1215 }
1216
1217 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1218 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1219 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1220 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1221 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1222 else
1223 ret = 0;
1224 if (ret)
1225 return ret;
1226 }
1227
1228 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1229 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1230 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1231 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1232 if (ret)
1233 return ret;
1234 }
1235
1236 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1237 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1238 test_sta_flag(sta, WLAN_STA_AUTH)) {
1239 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1240 if (ret)
1241 return ret;
1242 }
1243
1244 return 0;
1245 }
1246
1247 static int sta_apply_parameters(struct ieee80211_local *local,
1248 struct sta_info *sta,
1249 struct station_parameters *params)
1250 {
1251 int ret = 0;
1252 struct ieee80211_supported_band *sband;
1253 struct ieee80211_sub_if_data *sdata = sta->sdata;
1254 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1255 u32 mask, set;
1256
1257 sband = local->hw.wiphy->bands[band];
1258
1259 mask = params->sta_flags_mask;
1260 set = params->sta_flags_set;
1261
1262 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1263 /*
1264 * In mesh mode, ASSOCIATED isn't part of the nl80211
1265 * API but must follow AUTHENTICATED for driver state.
1266 */
1267 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1268 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1269 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1270 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1271 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1272 /*
1273 * TDLS -- everything follows authorized, but
1274 * only becoming authorized is possible, not
1275 * going back
1276 */
1277 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1278 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1279 BIT(NL80211_STA_FLAG_ASSOCIATED);
1280 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1281 BIT(NL80211_STA_FLAG_ASSOCIATED);
1282 }
1283 }
1284
1285 ret = sta_apply_auth_flags(local, sta, mask, set);
1286 if (ret)
1287 return ret;
1288
1289 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1290 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1291 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1292 else
1293 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1294 }
1295
1296 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1297 if (set & BIT(NL80211_STA_FLAG_WME)) {
1298 set_sta_flag(sta, WLAN_STA_WME);
1299 sta->sta.wme = true;
1300 } else {
1301 clear_sta_flag(sta, WLAN_STA_WME);
1302 sta->sta.wme = false;
1303 }
1304 }
1305
1306 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1307 if (set & BIT(NL80211_STA_FLAG_MFP))
1308 set_sta_flag(sta, WLAN_STA_MFP);
1309 else
1310 clear_sta_flag(sta, WLAN_STA_MFP);
1311 }
1312
1313 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1314 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1315 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1316 else
1317 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1318 }
1319
1320 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1321 sta->sta.uapsd_queues = params->uapsd_queues;
1322 sta->sta.max_sp = params->max_sp;
1323 }
1324
1325 /*
1326 * cfg80211 validates this (1-2007) and allows setting the AID
1327 * only when creating a new station entry
1328 */
1329 if (params->aid)
1330 sta->sta.aid = params->aid;
1331
1332 /*
1333 * Some of the following updates would be racy if called on an
1334 * existing station, via ieee80211_change_station(). However,
1335 * all such changes are rejected by cfg80211 except for updates
1336 * changing the supported rates on an existing but not yet used
1337 * TDLS peer.
1338 */
1339
1340 if (params->listen_interval >= 0)
1341 sta->listen_interval = params->listen_interval;
1342
1343 if (params->supported_rates) {
1344 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1345 sband, params->supported_rates,
1346 params->supported_rates_len,
1347 &sta->sta.supp_rates[band]);
1348 }
1349
1350 if (params->ht_capa)
1351 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1352 params->ht_capa, sta);
1353
1354 if (params->vht_capa)
1355 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1356 params->vht_capa, sta);
1357
1358 if (params->opmode_notif_used) {
1359 /* returned value is only needed for rc update, but the
1360 * rc isn't initialized here yet, so ignore it
1361 */
1362 __ieee80211_vht_handle_opmode(sdata, sta,
1363 params->opmode_notif,
1364 band, false);
1365 }
1366
1367 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1368 #ifdef CONFIG_MAC80211_MESH
1369 u32 changed = 0;
1370
1371 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1372 switch (params->plink_state) {
1373 case NL80211_PLINK_ESTAB:
1374 if (sta->plink_state != NL80211_PLINK_ESTAB)
1375 changed = mesh_plink_inc_estab_count(
1376 sdata);
1377 sta->plink_state = params->plink_state;
1378
1379 ieee80211_mps_sta_status_update(sta);
1380 changed |= ieee80211_mps_set_sta_local_pm(sta,
1381 sdata->u.mesh.mshcfg.power_mode);
1382 break;
1383 case NL80211_PLINK_LISTEN:
1384 case NL80211_PLINK_BLOCKED:
1385 case NL80211_PLINK_OPN_SNT:
1386 case NL80211_PLINK_OPN_RCVD:
1387 case NL80211_PLINK_CNF_RCVD:
1388 case NL80211_PLINK_HOLDING:
1389 if (sta->plink_state == NL80211_PLINK_ESTAB)
1390 changed = mesh_plink_dec_estab_count(
1391 sdata);
1392 sta->plink_state = params->plink_state;
1393
1394 ieee80211_mps_sta_status_update(sta);
1395 changed |= ieee80211_mps_set_sta_local_pm(sta,
1396 NL80211_MESH_POWER_UNKNOWN);
1397 break;
1398 default:
1399 /* nothing */
1400 break;
1401 }
1402 }
1403
1404 switch (params->plink_action) {
1405 case NL80211_PLINK_ACTION_NO_ACTION:
1406 /* nothing */
1407 break;
1408 case NL80211_PLINK_ACTION_OPEN:
1409 changed |= mesh_plink_open(sta);
1410 break;
1411 case NL80211_PLINK_ACTION_BLOCK:
1412 changed |= mesh_plink_block(sta);
1413 break;
1414 }
1415
1416 if (params->local_pm)
1417 changed |=
1418 ieee80211_mps_set_sta_local_pm(sta,
1419 params->local_pm);
1420 ieee80211_mbss_info_change_notify(sdata, changed);
1421 #endif
1422 }
1423
1424 return 0;
1425 }
1426
1427 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1428 u8 *mac, struct station_parameters *params)
1429 {
1430 struct ieee80211_local *local = wiphy_priv(wiphy);
1431 struct sta_info *sta;
1432 struct ieee80211_sub_if_data *sdata;
1433 int err;
1434 int layer2_update;
1435
1436 if (params->vlan) {
1437 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1438
1439 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1440 sdata->vif.type != NL80211_IFTYPE_AP)
1441 return -EINVAL;
1442 } else
1443 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1444
1445 if (ether_addr_equal(mac, sdata->vif.addr))
1446 return -EINVAL;
1447
1448 if (is_multicast_ether_addr(mac))
1449 return -EINVAL;
1450
1451 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1452 if (!sta)
1453 return -ENOMEM;
1454
1455 /*
1456 * defaults -- if userspace wants something else we'll
1457 * change it accordingly in sta_apply_parameters()
1458 */
1459 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1460 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1461 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1462 }
1463
1464 err = sta_apply_parameters(local, sta, params);
1465 if (err) {
1466 sta_info_free(local, sta);
1467 return err;
1468 }
1469
1470 /*
1471 * for TDLS, rate control should be initialized only when
1472 * rates are known and station is marked authorized
1473 */
1474 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1475 rate_control_rate_init(sta);
1476
1477 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1478 sdata->vif.type == NL80211_IFTYPE_AP;
1479
1480 err = sta_info_insert_rcu(sta);
1481 if (err) {
1482 rcu_read_unlock();
1483 return err;
1484 }
1485
1486 if (layer2_update)
1487 ieee80211_send_layer2_update(sta);
1488
1489 rcu_read_unlock();
1490
1491 return 0;
1492 }
1493
1494 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1495 u8 *mac)
1496 {
1497 struct ieee80211_sub_if_data *sdata;
1498
1499 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1500
1501 if (mac)
1502 return sta_info_destroy_addr_bss(sdata, mac);
1503
1504 sta_info_flush(sdata);
1505 return 0;
1506 }
1507
1508 static int ieee80211_change_station(struct wiphy *wiphy,
1509 struct net_device *dev, u8 *mac,
1510 struct station_parameters *params)
1511 {
1512 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1513 struct ieee80211_local *local = wiphy_priv(wiphy);
1514 struct sta_info *sta;
1515 struct ieee80211_sub_if_data *vlansdata;
1516 enum cfg80211_station_type statype;
1517 int err;
1518
1519 mutex_lock(&local->sta_mtx);
1520
1521 sta = sta_info_get_bss(sdata, mac);
1522 if (!sta) {
1523 err = -ENOENT;
1524 goto out_err;
1525 }
1526
1527 switch (sdata->vif.type) {
1528 case NL80211_IFTYPE_MESH_POINT:
1529 if (sdata->u.mesh.user_mpm)
1530 statype = CFG80211_STA_MESH_PEER_USER;
1531 else
1532 statype = CFG80211_STA_MESH_PEER_KERNEL;
1533 break;
1534 case NL80211_IFTYPE_ADHOC:
1535 statype = CFG80211_STA_IBSS;
1536 break;
1537 case NL80211_IFTYPE_STATION:
1538 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1539 statype = CFG80211_STA_AP_STA;
1540 break;
1541 }
1542 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1543 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1544 else
1545 statype = CFG80211_STA_TDLS_PEER_SETUP;
1546 break;
1547 case NL80211_IFTYPE_AP:
1548 case NL80211_IFTYPE_AP_VLAN:
1549 statype = CFG80211_STA_AP_CLIENT;
1550 break;
1551 default:
1552 err = -EOPNOTSUPP;
1553 goto out_err;
1554 }
1555
1556 err = cfg80211_check_station_change(wiphy, params, statype);
1557 if (err)
1558 goto out_err;
1559
1560 if (params->vlan && params->vlan != sta->sdata->dev) {
1561 bool prev_4addr = false;
1562 bool new_4addr = false;
1563
1564 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1565
1566 if (params->vlan->ieee80211_ptr->use_4addr) {
1567 if (vlansdata->u.vlan.sta) {
1568 err = -EBUSY;
1569 goto out_err;
1570 }
1571
1572 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1573 new_4addr = true;
1574 }
1575
1576 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1577 sta->sdata->u.vlan.sta) {
1578 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1579 prev_4addr = true;
1580 }
1581
1582 sta->sdata = vlansdata;
1583
1584 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1585 prev_4addr != new_4addr) {
1586 if (new_4addr)
1587 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1588 else
1589 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1590 }
1591
1592 ieee80211_send_layer2_update(sta);
1593 }
1594
1595 err = sta_apply_parameters(local, sta, params);
1596 if (err)
1597 goto out_err;
1598
1599 /* When peer becomes authorized, init rate control as well */
1600 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1601 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1602 rate_control_rate_init(sta);
1603
1604 mutex_unlock(&local->sta_mtx);
1605
1606 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1607 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1608 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1609 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1610 sta_info_tx_streams(sta) != 1) {
1611 ht_dbg(sta->sdata,
1612 "%pM just authorized and MIMO capable - update SMPS\n",
1613 sta->sta.addr);
1614 ieee80211_send_smps_action(sta->sdata,
1615 sta->sdata->bss->req_smps,
1616 sta->sta.addr,
1617 sta->sdata->vif.bss_conf.bssid);
1618 }
1619
1620 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1621 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1622 ieee80211_recalc_ps(local, -1);
1623 ieee80211_recalc_ps_vif(sdata);
1624 }
1625
1626 return 0;
1627 out_err:
1628 mutex_unlock(&local->sta_mtx);
1629 return err;
1630 }
1631
1632 #ifdef CONFIG_MAC80211_MESH
1633 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1634 u8 *dst, u8 *next_hop)
1635 {
1636 struct ieee80211_sub_if_data *sdata;
1637 struct mesh_path *mpath;
1638 struct sta_info *sta;
1639
1640 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1641
1642 rcu_read_lock();
1643 sta = sta_info_get(sdata, next_hop);
1644 if (!sta) {
1645 rcu_read_unlock();
1646 return -ENOENT;
1647 }
1648
1649 mpath = mesh_path_add(sdata, dst);
1650 if (IS_ERR(mpath)) {
1651 rcu_read_unlock();
1652 return PTR_ERR(mpath);
1653 }
1654
1655 mesh_path_fix_nexthop(mpath, sta);
1656
1657 rcu_read_unlock();
1658 return 0;
1659 }
1660
1661 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1662 u8 *dst)
1663 {
1664 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1665
1666 if (dst)
1667 return mesh_path_del(sdata, dst);
1668
1669 mesh_path_flush_by_iface(sdata);
1670 return 0;
1671 }
1672
1673 static int ieee80211_change_mpath(struct wiphy *wiphy,
1674 struct net_device *dev,
1675 u8 *dst, u8 *next_hop)
1676 {
1677 struct ieee80211_sub_if_data *sdata;
1678 struct mesh_path *mpath;
1679 struct sta_info *sta;
1680
1681 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1682
1683 rcu_read_lock();
1684
1685 sta = sta_info_get(sdata, next_hop);
1686 if (!sta) {
1687 rcu_read_unlock();
1688 return -ENOENT;
1689 }
1690
1691 mpath = mesh_path_lookup(sdata, dst);
1692 if (!mpath) {
1693 rcu_read_unlock();
1694 return -ENOENT;
1695 }
1696
1697 mesh_path_fix_nexthop(mpath, sta);
1698
1699 rcu_read_unlock();
1700 return 0;
1701 }
1702
1703 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1704 struct mpath_info *pinfo)
1705 {
1706 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1707
1708 if (next_hop_sta)
1709 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1710 else
1711 memset(next_hop, 0, ETH_ALEN);
1712
1713 memset(pinfo, 0, sizeof(*pinfo));
1714
1715 pinfo->generation = mesh_paths_generation;
1716
1717 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1718 MPATH_INFO_SN |
1719 MPATH_INFO_METRIC |
1720 MPATH_INFO_EXPTIME |
1721 MPATH_INFO_DISCOVERY_TIMEOUT |
1722 MPATH_INFO_DISCOVERY_RETRIES |
1723 MPATH_INFO_FLAGS;
1724
1725 pinfo->frame_qlen = mpath->frame_queue.qlen;
1726 pinfo->sn = mpath->sn;
1727 pinfo->metric = mpath->metric;
1728 if (time_before(jiffies, mpath->exp_time))
1729 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1730 pinfo->discovery_timeout =
1731 jiffies_to_msecs(mpath->discovery_timeout);
1732 pinfo->discovery_retries = mpath->discovery_retries;
1733 if (mpath->flags & MESH_PATH_ACTIVE)
1734 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1735 if (mpath->flags & MESH_PATH_RESOLVING)
1736 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1737 if (mpath->flags & MESH_PATH_SN_VALID)
1738 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1739 if (mpath->flags & MESH_PATH_FIXED)
1740 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1741 if (mpath->flags & MESH_PATH_RESOLVED)
1742 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1743 }
1744
1745 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1746 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1747
1748 {
1749 struct ieee80211_sub_if_data *sdata;
1750 struct mesh_path *mpath;
1751
1752 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1753
1754 rcu_read_lock();
1755 mpath = mesh_path_lookup(sdata, dst);
1756 if (!mpath) {
1757 rcu_read_unlock();
1758 return -ENOENT;
1759 }
1760 memcpy(dst, mpath->dst, ETH_ALEN);
1761 mpath_set_pinfo(mpath, next_hop, pinfo);
1762 rcu_read_unlock();
1763 return 0;
1764 }
1765
1766 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1767 int idx, u8 *dst, u8 *next_hop,
1768 struct mpath_info *pinfo)
1769 {
1770 struct ieee80211_sub_if_data *sdata;
1771 struct mesh_path *mpath;
1772
1773 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1774
1775 rcu_read_lock();
1776 mpath = mesh_path_lookup_by_idx(sdata, idx);
1777 if (!mpath) {
1778 rcu_read_unlock();
1779 return -ENOENT;
1780 }
1781 memcpy(dst, mpath->dst, ETH_ALEN);
1782 mpath_set_pinfo(mpath, next_hop, pinfo);
1783 rcu_read_unlock();
1784 return 0;
1785 }
1786
1787 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1788 struct net_device *dev,
1789 struct mesh_config *conf)
1790 {
1791 struct ieee80211_sub_if_data *sdata;
1792 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1793
1794 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1795 return 0;
1796 }
1797
1798 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1799 {
1800 return (mask >> (parm-1)) & 0x1;
1801 }
1802
1803 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1804 const struct mesh_setup *setup)
1805 {
1806 u8 *new_ie;
1807 const u8 *old_ie;
1808 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1809 struct ieee80211_sub_if_data, u.mesh);
1810
1811 /* allocate information elements */
1812 new_ie = NULL;
1813 old_ie = ifmsh->ie;
1814
1815 if (setup->ie_len) {
1816 new_ie = kmemdup(setup->ie, setup->ie_len,
1817 GFP_KERNEL);
1818 if (!new_ie)
1819 return -ENOMEM;
1820 }
1821 ifmsh->ie_len = setup->ie_len;
1822 ifmsh->ie = new_ie;
1823 kfree(old_ie);
1824
1825 /* now copy the rest of the setup parameters */
1826 ifmsh->mesh_id_len = setup->mesh_id_len;
1827 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1828 ifmsh->mesh_sp_id = setup->sync_method;
1829 ifmsh->mesh_pp_id = setup->path_sel_proto;
1830 ifmsh->mesh_pm_id = setup->path_metric;
1831 ifmsh->user_mpm = setup->user_mpm;
1832 ifmsh->mesh_auth_id = setup->auth_id;
1833 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1834 if (setup->is_authenticated)
1835 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1836 if (setup->is_secure)
1837 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1838
1839 /* mcast rate setting in Mesh Node */
1840 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1841 sizeof(setup->mcast_rate));
1842 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1843
1844 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1845 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1846
1847 return 0;
1848 }
1849
1850 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1851 struct net_device *dev, u32 mask,
1852 const struct mesh_config *nconf)
1853 {
1854 struct mesh_config *conf;
1855 struct ieee80211_sub_if_data *sdata;
1856 struct ieee80211_if_mesh *ifmsh;
1857
1858 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1859 ifmsh = &sdata->u.mesh;
1860
1861 /* Set the config options which we are interested in setting */
1862 conf = &(sdata->u.mesh.mshcfg);
1863 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1864 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1865 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1866 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1867 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1868 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1869 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1870 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1871 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1872 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1873 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1874 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1875 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1876 conf->element_ttl = nconf->element_ttl;
1877 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1878 if (ifmsh->user_mpm)
1879 return -EBUSY;
1880 conf->auto_open_plinks = nconf->auto_open_plinks;
1881 }
1882 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1883 conf->dot11MeshNbrOffsetMaxNeighbor =
1884 nconf->dot11MeshNbrOffsetMaxNeighbor;
1885 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1886 conf->dot11MeshHWMPmaxPREQretries =
1887 nconf->dot11MeshHWMPmaxPREQretries;
1888 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1889 conf->path_refresh_time = nconf->path_refresh_time;
1890 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1891 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1892 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1893 conf->dot11MeshHWMPactivePathTimeout =
1894 nconf->dot11MeshHWMPactivePathTimeout;
1895 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1896 conf->dot11MeshHWMPpreqMinInterval =
1897 nconf->dot11MeshHWMPpreqMinInterval;
1898 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1899 conf->dot11MeshHWMPperrMinInterval =
1900 nconf->dot11MeshHWMPperrMinInterval;
1901 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1902 mask))
1903 conf->dot11MeshHWMPnetDiameterTraversalTime =
1904 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1905 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1906 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1907 ieee80211_mesh_root_setup(ifmsh);
1908 }
1909 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1910 /* our current gate announcement implementation rides on root
1911 * announcements, so require this ifmsh to also be a root node
1912 * */
1913 if (nconf->dot11MeshGateAnnouncementProtocol &&
1914 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1915 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1916 ieee80211_mesh_root_setup(ifmsh);
1917 }
1918 conf->dot11MeshGateAnnouncementProtocol =
1919 nconf->dot11MeshGateAnnouncementProtocol;
1920 }
1921 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1922 conf->dot11MeshHWMPRannInterval =
1923 nconf->dot11MeshHWMPRannInterval;
1924 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1925 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1926 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1927 /* our RSSI threshold implementation is supported only for
1928 * devices that report signal in dBm.
1929 */
1930 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1931 return -ENOTSUPP;
1932 conf->rssi_threshold = nconf->rssi_threshold;
1933 }
1934 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1935 conf->ht_opmode = nconf->ht_opmode;
1936 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1937 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1938 }
1939 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1940 conf->dot11MeshHWMPactivePathToRootTimeout =
1941 nconf->dot11MeshHWMPactivePathToRootTimeout;
1942 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1943 conf->dot11MeshHWMProotInterval =
1944 nconf->dot11MeshHWMProotInterval;
1945 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1946 conf->dot11MeshHWMPconfirmationInterval =
1947 nconf->dot11MeshHWMPconfirmationInterval;
1948 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1949 conf->power_mode = nconf->power_mode;
1950 ieee80211_mps_local_status_update(sdata);
1951 }
1952 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1953 conf->dot11MeshAwakeWindowDuration =
1954 nconf->dot11MeshAwakeWindowDuration;
1955 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1956 conf->plink_timeout = nconf->plink_timeout;
1957 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1958 return 0;
1959 }
1960
1961 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1962 const struct mesh_config *conf,
1963 const struct mesh_setup *setup)
1964 {
1965 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1966 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1967 int err;
1968
1969 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1970 err = copy_mesh_setup(ifmsh, setup);
1971 if (err)
1972 return err;
1973
1974 /* can mesh use other SMPS modes? */
1975 sdata->smps_mode = IEEE80211_SMPS_OFF;
1976 sdata->needed_rx_chains = sdata->local->rx_chains;
1977
1978 mutex_lock(&sdata->local->mtx);
1979 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1980 IEEE80211_CHANCTX_SHARED);
1981 mutex_unlock(&sdata->local->mtx);
1982 if (err)
1983 return err;
1984
1985 return ieee80211_start_mesh(sdata);
1986 }
1987
1988 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1989 {
1990 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1991
1992 ieee80211_stop_mesh(sdata);
1993 mutex_lock(&sdata->local->mtx);
1994 ieee80211_vif_release_channel(sdata);
1995 mutex_unlock(&sdata->local->mtx);
1996
1997 return 0;
1998 }
1999 #endif
2000
2001 static int ieee80211_change_bss(struct wiphy *wiphy,
2002 struct net_device *dev,
2003 struct bss_parameters *params)
2004 {
2005 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2006 enum ieee80211_band band;
2007 u32 changed = 0;
2008
2009 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2010 return -ENOENT;
2011
2012 band = ieee80211_get_sdata_band(sdata);
2013
2014 if (params->use_cts_prot >= 0) {
2015 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2016 changed |= BSS_CHANGED_ERP_CTS_PROT;
2017 }
2018 if (params->use_short_preamble >= 0) {
2019 sdata->vif.bss_conf.use_short_preamble =
2020 params->use_short_preamble;
2021 changed |= BSS_CHANGED_ERP_PREAMBLE;
2022 }
2023
2024 if (!sdata->vif.bss_conf.use_short_slot &&
2025 band == IEEE80211_BAND_5GHZ) {
2026 sdata->vif.bss_conf.use_short_slot = true;
2027 changed |= BSS_CHANGED_ERP_SLOT;
2028 }
2029
2030 if (params->use_short_slot_time >= 0) {
2031 sdata->vif.bss_conf.use_short_slot =
2032 params->use_short_slot_time;
2033 changed |= BSS_CHANGED_ERP_SLOT;
2034 }
2035
2036 if (params->basic_rates) {
2037 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2038 wiphy->bands[band],
2039 params->basic_rates,
2040 params->basic_rates_len,
2041 &sdata->vif.bss_conf.basic_rates);
2042 changed |= BSS_CHANGED_BASIC_RATES;
2043 }
2044
2045 if (params->ap_isolate >= 0) {
2046 if (params->ap_isolate)
2047 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2048 else
2049 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2050 }
2051
2052 if (params->ht_opmode >= 0) {
2053 sdata->vif.bss_conf.ht_operation_mode =
2054 (u16) params->ht_opmode;
2055 changed |= BSS_CHANGED_HT;
2056 }
2057
2058 if (params->p2p_ctwindow >= 0) {
2059 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2060 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2061 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2062 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2063 changed |= BSS_CHANGED_P2P_PS;
2064 }
2065
2066 if (params->p2p_opp_ps > 0) {
2067 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2068 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2069 changed |= BSS_CHANGED_P2P_PS;
2070 } else if (params->p2p_opp_ps == 0) {
2071 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2072 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2073 changed |= BSS_CHANGED_P2P_PS;
2074 }
2075
2076 ieee80211_bss_info_change_notify(sdata, changed);
2077
2078 return 0;
2079 }
2080
2081 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2082 struct net_device *dev,
2083 struct ieee80211_txq_params *params)
2084 {
2085 struct ieee80211_local *local = wiphy_priv(wiphy);
2086 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2087 struct ieee80211_tx_queue_params p;
2088
2089 if (!local->ops->conf_tx)
2090 return -EOPNOTSUPP;
2091
2092 if (local->hw.queues < IEEE80211_NUM_ACS)
2093 return -EOPNOTSUPP;
2094
2095 memset(&p, 0, sizeof(p));
2096 p.aifs = params->aifs;
2097 p.cw_max = params->cwmax;
2098 p.cw_min = params->cwmin;
2099 p.txop = params->txop;
2100
2101 /*
2102 * Setting tx queue params disables u-apsd because it's only
2103 * called in master mode.
2104 */
2105 p.uapsd = false;
2106
2107 sdata->tx_conf[params->ac] = p;
2108 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2109 wiphy_debug(local->hw.wiphy,
2110 "failed to set TX queue parameters for AC %d\n",
2111 params->ac);
2112 return -EINVAL;
2113 }
2114
2115 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2116
2117 return 0;
2118 }
2119
2120 #ifdef CONFIG_PM
2121 static int ieee80211_suspend(struct wiphy *wiphy,
2122 struct cfg80211_wowlan *wowlan)
2123 {
2124 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2125 }
2126
2127 static int ieee80211_resume(struct wiphy *wiphy)
2128 {
2129 return __ieee80211_resume(wiphy_priv(wiphy));
2130 }
2131 #else
2132 #define ieee80211_suspend NULL
2133 #define ieee80211_resume NULL
2134 #endif
2135
2136 static int ieee80211_scan(struct wiphy *wiphy,
2137 struct cfg80211_scan_request *req)
2138 {
2139 struct ieee80211_sub_if_data *sdata;
2140
2141 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2142
2143 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2144 case NL80211_IFTYPE_STATION:
2145 case NL80211_IFTYPE_ADHOC:
2146 case NL80211_IFTYPE_MESH_POINT:
2147 case NL80211_IFTYPE_P2P_CLIENT:
2148 case NL80211_IFTYPE_P2P_DEVICE:
2149 break;
2150 case NL80211_IFTYPE_P2P_GO:
2151 if (sdata->local->ops->hw_scan)
2152 break;
2153 /*
2154 * FIXME: implement NoA while scanning in software,
2155 * for now fall through to allow scanning only when
2156 * beaconing hasn't been configured yet
2157 */
2158 case NL80211_IFTYPE_AP:
2159 /*
2160 * If the scan has been forced (and the driver supports
2161 * forcing), don't care about being beaconing already.
2162 * This will create problems to the attached stations (e.g. all
2163 * the frames sent while scanning on other channel will be
2164 * lost)
2165 */
2166 if (sdata->u.ap.beacon &&
2167 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2168 !(req->flags & NL80211_SCAN_FLAG_AP)))
2169 return -EOPNOTSUPP;
2170 break;
2171 default:
2172 return -EOPNOTSUPP;
2173 }
2174
2175 return ieee80211_request_scan(sdata, req);
2176 }
2177
2178 static int
2179 ieee80211_sched_scan_start(struct wiphy *wiphy,
2180 struct net_device *dev,
2181 struct cfg80211_sched_scan_request *req)
2182 {
2183 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2184
2185 if (!sdata->local->ops->sched_scan_start)
2186 return -EOPNOTSUPP;
2187
2188 return ieee80211_request_sched_scan_start(sdata, req);
2189 }
2190
2191 static int
2192 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2193 {
2194 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2195
2196 if (!sdata->local->ops->sched_scan_stop)
2197 return -EOPNOTSUPP;
2198
2199 return ieee80211_request_sched_scan_stop(sdata);
2200 }
2201
2202 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2203 struct cfg80211_auth_request *req)
2204 {
2205 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2206 }
2207
2208 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2209 struct cfg80211_assoc_request *req)
2210 {
2211 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2212 }
2213
2214 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2215 struct cfg80211_deauth_request *req)
2216 {
2217 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2218 }
2219
2220 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2221 struct cfg80211_disassoc_request *req)
2222 {
2223 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2224 }
2225
2226 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2227 struct cfg80211_ibss_params *params)
2228 {
2229 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2230 }
2231
2232 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2233 {
2234 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2235 }
2236
2237 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2238 int rate[IEEE80211_NUM_BANDS])
2239 {
2240 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2241
2242 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2243 sizeof(int) * IEEE80211_NUM_BANDS);
2244
2245 return 0;
2246 }
2247
2248 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2249 {
2250 struct ieee80211_local *local = wiphy_priv(wiphy);
2251 int err;
2252
2253 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2254 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2255
2256 if (err)
2257 return err;
2258 }
2259
2260 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2261 err = drv_set_coverage_class(local, wiphy->coverage_class);
2262
2263 if (err)
2264 return err;
2265 }
2266
2267 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2268 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2269
2270 if (err)
2271 return err;
2272 }
2273
2274 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2275 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2276 return -EINVAL;
2277 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2278 }
2279 if (changed & WIPHY_PARAM_RETRY_LONG) {
2280 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2281 return -EINVAL;
2282 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2283 }
2284 if (changed &
2285 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2286 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2287
2288 return 0;
2289 }
2290
2291 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2292 struct wireless_dev *wdev,
2293 enum nl80211_tx_power_setting type, int mbm)
2294 {
2295 struct ieee80211_local *local = wiphy_priv(wiphy);
2296 struct ieee80211_sub_if_data *sdata;
2297
2298 if (wdev) {
2299 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2300
2301 switch (type) {
2302 case NL80211_TX_POWER_AUTOMATIC:
2303 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2304 break;
2305 case NL80211_TX_POWER_LIMITED:
2306 case NL80211_TX_POWER_FIXED:
2307 if (mbm < 0 || (mbm % 100))
2308 return -EOPNOTSUPP;
2309 sdata->user_power_level = MBM_TO_DBM(mbm);
2310 break;
2311 }
2312
2313 ieee80211_recalc_txpower(sdata);
2314
2315 return 0;
2316 }
2317
2318 switch (type) {
2319 case NL80211_TX_POWER_AUTOMATIC:
2320 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2321 break;
2322 case NL80211_TX_POWER_LIMITED:
2323 case NL80211_TX_POWER_FIXED:
2324 if (mbm < 0 || (mbm % 100))
2325 return -EOPNOTSUPP;
2326 local->user_power_level = MBM_TO_DBM(mbm);
2327 break;
2328 }
2329
2330 mutex_lock(&local->iflist_mtx);
2331 list_for_each_entry(sdata, &local->interfaces, list)
2332 sdata->user_power_level = local->user_power_level;
2333 list_for_each_entry(sdata, &local->interfaces, list)
2334 ieee80211_recalc_txpower(sdata);
2335 mutex_unlock(&local->iflist_mtx);
2336
2337 return 0;
2338 }
2339
2340 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2341 struct wireless_dev *wdev,
2342 int *dbm)
2343 {
2344 struct ieee80211_local *local = wiphy_priv(wiphy);
2345 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2346
2347 if (!local->use_chanctx)
2348 *dbm = local->hw.conf.power_level;
2349 else
2350 *dbm = sdata->vif.bss_conf.txpower;
2351
2352 return 0;
2353 }
2354
2355 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2356 const u8 *addr)
2357 {
2358 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2359
2360 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2361
2362 return 0;
2363 }
2364
2365 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2366 {
2367 struct ieee80211_local *local = wiphy_priv(wiphy);
2368
2369 drv_rfkill_poll(local);
2370 }
2371
2372 #ifdef CONFIG_NL80211_TESTMODE
2373 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2374 struct wireless_dev *wdev,
2375 void *data, int len)
2376 {
2377 struct ieee80211_local *local = wiphy_priv(wiphy);
2378 struct ieee80211_vif *vif = NULL;
2379
2380 if (!local->ops->testmode_cmd)
2381 return -EOPNOTSUPP;
2382
2383 if (wdev) {
2384 struct ieee80211_sub_if_data *sdata;
2385
2386 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2387 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2388 vif = &sdata->vif;
2389 }
2390
2391 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2392 }
2393
2394 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2395 struct sk_buff *skb,
2396 struct netlink_callback *cb,
2397 void *data, int len)
2398 {
2399 struct ieee80211_local *local = wiphy_priv(wiphy);
2400
2401 if (!local->ops->testmode_dump)
2402 return -EOPNOTSUPP;
2403
2404 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2405 }
2406 #endif
2407
2408 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2409 enum ieee80211_smps_mode smps_mode)
2410 {
2411 struct sta_info *sta;
2412 enum ieee80211_smps_mode old_req;
2413 int i;
2414
2415 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2416 return -EINVAL;
2417
2418 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2419 return 0;
2420
2421 old_req = sdata->u.ap.req_smps;
2422 sdata->u.ap.req_smps = smps_mode;
2423
2424 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2425 if (old_req == smps_mode ||
2426 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2427 return 0;
2428
2429 /* If no associated stations, there's no need to do anything */
2430 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2431 sdata->smps_mode = smps_mode;
2432 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2433 return 0;
2434 }
2435
2436 ht_dbg(sdata,
2437 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2438 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2439
2440 mutex_lock(&sdata->local->sta_mtx);
2441 for (i = 0; i < STA_HASH_SIZE; i++) {
2442 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2443 lockdep_is_held(&sdata->local->sta_mtx));
2444 sta;
2445 sta = rcu_dereference_protected(sta->hnext,
2446 lockdep_is_held(&sdata->local->sta_mtx))) {
2447 /*
2448 * Only stations associated to our AP and
2449 * associated VLANs
2450 */
2451 if (sta->sdata->bss != &sdata->u.ap)
2452 continue;
2453
2454 /* This station doesn't support MIMO - skip it */
2455 if (sta_info_tx_streams(sta) == 1)
2456 continue;
2457
2458 /*
2459 * Don't wake up a STA just to send the action frame
2460 * unless we are getting more restrictive.
2461 */
2462 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2463 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2464 smps_mode)) {
2465 ht_dbg(sdata,
2466 "Won't send SMPS to sleeping STA %pM\n",
2467 sta->sta.addr);
2468 continue;
2469 }
2470
2471 /*
2472 * If the STA is not authorized, wait until it gets
2473 * authorized and the action frame will be sent then.
2474 */
2475 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2476 continue;
2477
2478 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2479 ieee80211_send_smps_action(sdata, smps_mode,
2480 sta->sta.addr,
2481 sdata->vif.bss_conf.bssid);
2482 }
2483 }
2484 mutex_unlock(&sdata->local->sta_mtx);
2485
2486 sdata->smps_mode = smps_mode;
2487 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2488
2489 return 0;
2490 }
2491
2492 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2493 enum ieee80211_smps_mode smps_mode)
2494 {
2495 const u8 *ap;
2496 enum ieee80211_smps_mode old_req;
2497 int err;
2498
2499 lockdep_assert_held(&sdata->wdev.mtx);
2500
2501 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2502 return -EINVAL;
2503
2504 old_req = sdata->u.mgd.req_smps;
2505 sdata->u.mgd.req_smps = smps_mode;
2506
2507 if (old_req == smps_mode &&
2508 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2509 return 0;
2510
2511 /*
2512 * If not associated, or current association is not an HT
2513 * association, there's no need to do anything, just store
2514 * the new value until we associate.
2515 */
2516 if (!sdata->u.mgd.associated ||
2517 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2518 return 0;
2519
2520 ap = sdata->u.mgd.associated->bssid;
2521
2522 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2523 if (sdata->u.mgd.powersave)
2524 smps_mode = IEEE80211_SMPS_DYNAMIC;
2525 else
2526 smps_mode = IEEE80211_SMPS_OFF;
2527 }
2528
2529 /* send SM PS frame to AP */
2530 err = ieee80211_send_smps_action(sdata, smps_mode,
2531 ap, ap);
2532 if (err)
2533 sdata->u.mgd.req_smps = old_req;
2534
2535 return err;
2536 }
2537
2538 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2539 bool enabled, int timeout)
2540 {
2541 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2542 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2543
2544 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2545 return -EOPNOTSUPP;
2546
2547 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2548 return -EOPNOTSUPP;
2549
2550 if (enabled == sdata->u.mgd.powersave &&
2551 timeout == local->dynamic_ps_forced_timeout)
2552 return 0;
2553
2554 sdata->u.mgd.powersave = enabled;
2555 local->dynamic_ps_forced_timeout = timeout;
2556
2557 /* no change, but if automatic follow powersave */
2558 sdata_lock(sdata);
2559 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2560 sdata_unlock(sdata);
2561
2562 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2563 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2564
2565 ieee80211_recalc_ps(local, -1);
2566 ieee80211_recalc_ps_vif(sdata);
2567
2568 return 0;
2569 }
2570
2571 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2572 struct net_device *dev,
2573 s32 rssi_thold, u32 rssi_hyst)
2574 {
2575 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2576 struct ieee80211_vif *vif = &sdata->vif;
2577 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2578
2579 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2580 rssi_hyst == bss_conf->cqm_rssi_hyst)
2581 return 0;
2582
2583 bss_conf->cqm_rssi_thold = rssi_thold;
2584 bss_conf->cqm_rssi_hyst = rssi_hyst;
2585
2586 /* tell the driver upon association, unless already associated */
2587 if (sdata->u.mgd.associated &&
2588 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2589 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2590
2591 return 0;
2592 }
2593
2594 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2595 struct net_device *dev,
2596 const u8 *addr,
2597 const struct cfg80211_bitrate_mask *mask)
2598 {
2599 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2600 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2601 int i, ret;
2602
2603 if (!ieee80211_sdata_running(sdata))
2604 return -ENETDOWN;
2605
2606 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2607 ret = drv_set_bitrate_mask(local, sdata, mask);
2608 if (ret)
2609 return ret;
2610 }
2611
2612 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2613 struct ieee80211_supported_band *sband = wiphy->bands[i];
2614 int j;
2615
2616 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2617 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2618 sizeof(mask->control[i].ht_mcs));
2619
2620 sdata->rc_has_mcs_mask[i] = false;
2621 if (!sband)
2622 continue;
2623
2624 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2625 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2626 sdata->rc_has_mcs_mask[i] = true;
2627 break;
2628 }
2629 }
2630
2631 return 0;
2632 }
2633
2634 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2635 struct ieee80211_sub_if_data *sdata,
2636 struct ieee80211_channel *channel,
2637 unsigned int duration, u64 *cookie,
2638 struct sk_buff *txskb,
2639 enum ieee80211_roc_type type)
2640 {
2641 struct ieee80211_roc_work *roc, *tmp;
2642 bool queued = false;
2643 int ret;
2644
2645 lockdep_assert_held(&local->mtx);
2646
2647 if (local->use_chanctx && !local->ops->remain_on_channel)
2648 return -EOPNOTSUPP;
2649
2650 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2651 if (!roc)
2652 return -ENOMEM;
2653
2654 /*
2655 * If the duration is zero, then the driver
2656 * wouldn't actually do anything. Set it to
2657 * 10 for now.
2658 *
2659 * TODO: cancel the off-channel operation
2660 * when we get the SKB's TX status and
2661 * the wait time was zero before.
2662 */
2663 if (!duration)
2664 duration = 10;
2665
2666 roc->chan = channel;
2667 roc->duration = duration;
2668 roc->req_duration = duration;
2669 roc->frame = txskb;
2670 roc->type = type;
2671 roc->mgmt_tx_cookie = (unsigned long)txskb;
2672 roc->sdata = sdata;
2673 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2674 INIT_LIST_HEAD(&roc->dependents);
2675
2676 /*
2677 * cookie is either the roc cookie (for normal roc)
2678 * or the SKB (for mgmt TX)
2679 */
2680 if (!txskb) {
2681 /* local->mtx protects this */
2682 local->roc_cookie_counter++;
2683 roc->cookie = local->roc_cookie_counter;
2684 /* wow, you wrapped 64 bits ... more likely a bug */
2685 if (WARN_ON(roc->cookie == 0)) {
2686 roc->cookie = 1;
2687 local->roc_cookie_counter++;
2688 }
2689 *cookie = roc->cookie;
2690 } else {
2691 *cookie = (unsigned long)txskb;
2692 }
2693
2694 /* if there's one pending or we're scanning, queue this one */
2695 if (!list_empty(&local->roc_list) ||
2696 local->scanning || local->radar_detect_enabled)
2697 goto out_check_combine;
2698
2699 /* if not HW assist, just queue & schedule work */
2700 if (!local->ops->remain_on_channel) {
2701 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2702 goto out_queue;
2703 }
2704
2705 /* otherwise actually kick it off here (for error handling) */
2706
2707 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2708 if (ret) {
2709 kfree(roc);
2710 return ret;
2711 }
2712
2713 roc->started = true;
2714 goto out_queue;
2715
2716 out_check_combine:
2717 list_for_each_entry(tmp, &local->roc_list, list) {
2718 if (tmp->chan != channel || tmp->sdata != sdata)
2719 continue;
2720
2721 /*
2722 * Extend this ROC if possible:
2723 *
2724 * If it hasn't started yet, just increase the duration
2725 * and add the new one to the list of dependents.
2726 * If the type of the new ROC has higher priority, modify the
2727 * type of the previous one to match that of the new one.
2728 */
2729 if (!tmp->started) {
2730 list_add_tail(&roc->list, &tmp->dependents);
2731 tmp->duration = max(tmp->duration, roc->duration);
2732 tmp->type = max(tmp->type, roc->type);
2733 queued = true;
2734 break;
2735 }
2736
2737 /* If it has already started, it's more difficult ... */
2738 if (local->ops->remain_on_channel) {
2739 unsigned long j = jiffies;
2740
2741 /*
2742 * In the offloaded ROC case, if it hasn't begun, add
2743 * this new one to the dependent list to be handled
2744 * when the master one begins. If it has begun,
2745 * check that there's still a minimum time left and
2746 * if so, start this one, transmitting the frame, but
2747 * add it to the list directly after this one with
2748 * a reduced time so we'll ask the driver to execute
2749 * it right after finishing the previous one, in the
2750 * hope that it'll also be executed right afterwards,
2751 * effectively extending the old one.
2752 * If there's no minimum time left, just add it to the
2753 * normal list.
2754 * TODO: the ROC type is ignored here, assuming that it
2755 * is better to immediately use the current ROC.
2756 */
2757 if (!tmp->hw_begun) {
2758 list_add_tail(&roc->list, &tmp->dependents);
2759 queued = true;
2760 break;
2761 }
2762
2763 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2764 tmp->hw_start_time +
2765 msecs_to_jiffies(tmp->duration))) {
2766 int new_dur;
2767
2768 ieee80211_handle_roc_started(roc);
2769
2770 new_dur = roc->duration -
2771 jiffies_to_msecs(tmp->hw_start_time +
2772 msecs_to_jiffies(
2773 tmp->duration) -
2774 j);
2775
2776 if (new_dur > 0) {
2777 /* add right after tmp */
2778 list_add(&roc->list, &tmp->list);
2779 } else {
2780 list_add_tail(&roc->list,
2781 &tmp->dependents);
2782 }
2783 queued = true;
2784 }
2785 } else if (del_timer_sync(&tmp->work.timer)) {
2786 unsigned long new_end;
2787
2788 /*
2789 * In the software ROC case, cancel the timer, if
2790 * that fails then the finish work is already
2791 * queued/pending and thus we queue the new ROC
2792 * normally, if that succeeds then we can extend
2793 * the timer duration and TX the frame (if any.)
2794 */
2795
2796 list_add_tail(&roc->list, &tmp->dependents);
2797 queued = true;
2798
2799 new_end = jiffies + msecs_to_jiffies(roc->duration);
2800
2801 /* ok, it was started & we canceled timer */
2802 if (time_after(new_end, tmp->work.timer.expires))
2803 mod_timer(&tmp->work.timer, new_end);
2804 else
2805 add_timer(&tmp->work.timer);
2806
2807 ieee80211_handle_roc_started(roc);
2808 }
2809 break;
2810 }
2811
2812 out_queue:
2813 if (!queued)
2814 list_add_tail(&roc->list, &local->roc_list);
2815
2816 return 0;
2817 }
2818
2819 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2820 struct wireless_dev *wdev,
2821 struct ieee80211_channel *chan,
2822 unsigned int duration,
2823 u64 *cookie)
2824 {
2825 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2826 struct ieee80211_local *local = sdata->local;
2827 int ret;
2828
2829 mutex_lock(&local->mtx);
2830 ret = ieee80211_start_roc_work(local, sdata, chan,
2831 duration, cookie, NULL,
2832 IEEE80211_ROC_TYPE_NORMAL);
2833 mutex_unlock(&local->mtx);
2834
2835 return ret;
2836 }
2837
2838 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2839 u64 cookie, bool mgmt_tx)
2840 {
2841 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2842 int ret;
2843
2844 mutex_lock(&local->mtx);
2845 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2846 struct ieee80211_roc_work *dep, *tmp2;
2847
2848 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2849 if (!mgmt_tx && dep->cookie != cookie)
2850 continue;
2851 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2852 continue;
2853 /* found dependent item -- just remove it */
2854 list_del(&dep->list);
2855 mutex_unlock(&local->mtx);
2856
2857 ieee80211_roc_notify_destroy(dep, true);
2858 return 0;
2859 }
2860
2861 if (!mgmt_tx && roc->cookie != cookie)
2862 continue;
2863 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2864 continue;
2865
2866 found = roc;
2867 break;
2868 }
2869
2870 if (!found) {
2871 mutex_unlock(&local->mtx);
2872 return -ENOENT;
2873 }
2874
2875 /*
2876 * We found the item to cancel, so do that. Note that it
2877 * may have dependents, which we also cancel (and send
2878 * the expired signal for.) Not doing so would be quite
2879 * tricky here, but we may need to fix it later.
2880 */
2881
2882 if (local->ops->remain_on_channel) {
2883 if (found->started) {
2884 ret = drv_cancel_remain_on_channel(local);
2885 if (WARN_ON_ONCE(ret)) {
2886 mutex_unlock(&local->mtx);
2887 return ret;
2888 }
2889 }
2890
2891 list_del(&found->list);
2892
2893 if (found->started)
2894 ieee80211_start_next_roc(local);
2895 mutex_unlock(&local->mtx);
2896
2897 ieee80211_roc_notify_destroy(found, true);
2898 } else {
2899 /* work may be pending so use it all the time */
2900 found->abort = true;
2901 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2902
2903 mutex_unlock(&local->mtx);
2904
2905 /* work will clean up etc */
2906 flush_delayed_work(&found->work);
2907 WARN_ON(!found->to_be_freed);
2908 kfree(found);
2909 }
2910
2911 return 0;
2912 }
2913
2914 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2915 struct wireless_dev *wdev,
2916 u64 cookie)
2917 {
2918 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2919 struct ieee80211_local *local = sdata->local;
2920
2921 return ieee80211_cancel_roc(local, cookie, false);
2922 }
2923
2924 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2925 struct net_device *dev,
2926 struct cfg80211_chan_def *chandef,
2927 u32 cac_time_ms)
2928 {
2929 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2930 struct ieee80211_local *local = sdata->local;
2931 int err;
2932
2933 mutex_lock(&local->mtx);
2934 if (!list_empty(&local->roc_list) || local->scanning) {
2935 err = -EBUSY;
2936 goto out_unlock;
2937 }
2938
2939 /* whatever, but channel contexts should not complain about that one */
2940 sdata->smps_mode = IEEE80211_SMPS_OFF;
2941 sdata->needed_rx_chains = local->rx_chains;
2942
2943 err = ieee80211_vif_use_channel(sdata, chandef,
2944 IEEE80211_CHANCTX_SHARED);
2945 if (err)
2946 goto out_unlock;
2947
2948 ieee80211_queue_delayed_work(&sdata->local->hw,
2949 &sdata->dfs_cac_timer_work,
2950 msecs_to_jiffies(cac_time_ms));
2951
2952 out_unlock:
2953 mutex_unlock(&local->mtx);
2954 return err;
2955 }
2956
2957 static struct cfg80211_beacon_data *
2958 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2959 {
2960 struct cfg80211_beacon_data *new_beacon;
2961 u8 *pos;
2962 int len;
2963
2964 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2965 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2966 beacon->probe_resp_len;
2967
2968 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2969 if (!new_beacon)
2970 return NULL;
2971
2972 pos = (u8 *)(new_beacon + 1);
2973 if (beacon->head_len) {
2974 new_beacon->head_len = beacon->head_len;
2975 new_beacon->head = pos;
2976 memcpy(pos, beacon->head, beacon->head_len);
2977 pos += beacon->head_len;
2978 }
2979 if (beacon->tail_len) {
2980 new_beacon->tail_len = beacon->tail_len;
2981 new_beacon->tail = pos;
2982 memcpy(pos, beacon->tail, beacon->tail_len);
2983 pos += beacon->tail_len;
2984 }
2985 if (beacon->beacon_ies_len) {
2986 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2987 new_beacon->beacon_ies = pos;
2988 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2989 pos += beacon->beacon_ies_len;
2990 }
2991 if (beacon->proberesp_ies_len) {
2992 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2993 new_beacon->proberesp_ies = pos;
2994 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2995 pos += beacon->proberesp_ies_len;
2996 }
2997 if (beacon->assocresp_ies_len) {
2998 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2999 new_beacon->assocresp_ies = pos;
3000 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3001 pos += beacon->assocresp_ies_len;
3002 }
3003 if (beacon->probe_resp_len) {
3004 new_beacon->probe_resp_len = beacon->probe_resp_len;
3005 beacon->probe_resp = pos;
3006 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3007 pos += beacon->probe_resp_len;
3008 }
3009
3010 return new_beacon;
3011 }
3012
3013 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3014 {
3015 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3016
3017 ieee80211_queue_work(&sdata->local->hw,
3018 &sdata->csa_finalize_work);
3019 }
3020 EXPORT_SYMBOL(ieee80211_csa_finish);
3021
3022 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3023 {
3024 struct ieee80211_local *local = sdata->local;
3025 int err, changed = 0;
3026
3027 sdata_assert_lock(sdata);
3028
3029 mutex_lock(&local->mtx);
3030 sdata->radar_required = sdata->csa_radar_required;
3031 err = ieee80211_vif_change_channel(sdata, &changed);
3032 mutex_unlock(&local->mtx);
3033 if (WARN_ON(err < 0))
3034 return;
3035
3036 if (!local->use_chanctx) {
3037 local->_oper_chandef = sdata->csa_chandef;
3038 ieee80211_hw_config(local, 0);
3039 }
3040
3041 sdata->vif.csa_active = false;
3042 switch (sdata->vif.type) {
3043 case NL80211_IFTYPE_AP:
3044 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3045 kfree(sdata->u.ap.next_beacon);
3046 sdata->u.ap.next_beacon = NULL;
3047
3048 if (err < 0)
3049 return;
3050 changed |= err;
3051 break;
3052 case NL80211_IFTYPE_ADHOC:
3053 err = ieee80211_ibss_finish_csa(sdata);
3054 if (err < 0)
3055 return;
3056 changed |= err;
3057 break;
3058 #ifdef CONFIG_MAC80211_MESH
3059 case NL80211_IFTYPE_MESH_POINT:
3060 err = ieee80211_mesh_finish_csa(sdata);
3061 if (err < 0)
3062 return;
3063 changed |= err;
3064 break;
3065 #endif
3066 default:
3067 WARN_ON(1);
3068 return;
3069 }
3070
3071 ieee80211_bss_info_change_notify(sdata, changed);
3072
3073 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3074 IEEE80211_MAX_QUEUE_MAP,
3075 IEEE80211_QUEUE_STOP_REASON_CSA);
3076
3077 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3078 }
3079
3080 void ieee80211_csa_finalize_work(struct work_struct *work)
3081 {
3082 struct ieee80211_sub_if_data *sdata =
3083 container_of(work, struct ieee80211_sub_if_data,
3084 csa_finalize_work);
3085
3086 sdata_lock(sdata);
3087 /* AP might have been stopped while waiting for the lock. */
3088 if (!sdata->vif.csa_active)
3089 goto unlock;
3090
3091 if (!ieee80211_sdata_running(sdata))
3092 goto unlock;
3093
3094 ieee80211_csa_finalize(sdata);
3095
3096 unlock:
3097 sdata_unlock(sdata);
3098 }
3099
3100 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3101 struct cfg80211_csa_settings *params,
3102 u32 *changed)
3103 {
3104 int err;
3105
3106 switch (sdata->vif.type) {
3107 case NL80211_IFTYPE_AP:
3108 sdata->u.ap.next_beacon =
3109 cfg80211_beacon_dup(&params->beacon_after);
3110 if (!sdata->u.ap.next_beacon)
3111 return -ENOMEM;
3112
3113 /*
3114 * With a count of 0, we don't have to wait for any
3115 * TBTT before switching, so complete the CSA
3116 * immediately. In theory, with a count == 1 we
3117 * should delay the switch until just before the next
3118 * TBTT, but that would complicate things so we switch
3119 * immediately too. If we would delay the switch
3120 * until the next TBTT, we would have to set the probe
3121 * response here.
3122 *
3123 * TODO: A channel switch with count <= 1 without
3124 * sending a CSA action frame is kind of useless,
3125 * because the clients won't know we're changing
3126 * channels. The action frame must be implemented
3127 * either here or in the userspace.
3128 */
3129 if (params->count <= 1)
3130 break;
3131
3132 sdata->csa_counter_offset_beacon =
3133 params->counter_offset_beacon;
3134 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3135 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3136 if (err < 0) {
3137 kfree(sdata->u.ap.next_beacon);
3138 return err;
3139 }
3140 *changed |= err;
3141
3142 break;
3143 case NL80211_IFTYPE_ADHOC:
3144 if (!sdata->vif.bss_conf.ibss_joined)
3145 return -EINVAL;
3146
3147 if (params->chandef.width != sdata->u.ibss.chandef.width)
3148 return -EINVAL;
3149
3150 switch (params->chandef.width) {
3151 case NL80211_CHAN_WIDTH_40:
3152 if (cfg80211_get_chandef_type(&params->chandef) !=
3153 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3154 return -EINVAL;
3155 case NL80211_CHAN_WIDTH_5:
3156 case NL80211_CHAN_WIDTH_10:
3157 case NL80211_CHAN_WIDTH_20_NOHT:
3158 case NL80211_CHAN_WIDTH_20:
3159 break;
3160 default:
3161 return -EINVAL;
3162 }
3163
3164 /* changes into another band are not supported */
3165 if (sdata->u.ibss.chandef.chan->band !=
3166 params->chandef.chan->band)
3167 return -EINVAL;
3168
3169 /* see comments in the NL80211_IFTYPE_AP block */
3170 if (params->count > 1) {
3171 err = ieee80211_ibss_csa_beacon(sdata, params);
3172 if (err < 0)
3173 return err;
3174 *changed |= err;
3175 }
3176
3177 ieee80211_send_action_csa(sdata, params);
3178
3179 break;
3180 #ifdef CONFIG_MAC80211_MESH
3181 case NL80211_IFTYPE_MESH_POINT: {
3182 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3183
3184 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3185 return -EINVAL;
3186
3187 /* changes into another band are not supported */
3188 if (sdata->vif.bss_conf.chandef.chan->band !=
3189 params->chandef.chan->band)
3190 return -EINVAL;
3191
3192 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3193 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3194 if (!ifmsh->pre_value)
3195 ifmsh->pre_value = 1;
3196 else
3197 ifmsh->pre_value++;
3198 }
3199
3200 /* see comments in the NL80211_IFTYPE_AP block */
3201 if (params->count > 1) {
3202 err = ieee80211_mesh_csa_beacon(sdata, params);
3203 if (err < 0) {
3204 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3205 return err;
3206 }
3207 *changed |= err;
3208 }
3209
3210 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3211 ieee80211_send_action_csa(sdata, params);
3212
3213 break;
3214 }
3215 #endif
3216 default:
3217 return -EOPNOTSUPP;
3218 }
3219
3220 return 0;
3221 }
3222
3223 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3224 struct cfg80211_csa_settings *params)
3225 {
3226 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3227 struct ieee80211_local *local = sdata->local;
3228 struct ieee80211_chanctx_conf *conf;
3229 struct ieee80211_chanctx *chanctx;
3230 int err, num_chanctx, changed = 0;
3231
3232 sdata_assert_lock(sdata);
3233
3234 if (!list_empty(&local->roc_list) || local->scanning)
3235 return -EBUSY;
3236
3237 if (sdata->wdev.cac_started)
3238 return -EBUSY;
3239
3240 if (cfg80211_chandef_identical(&params->chandef,
3241 &sdata->vif.bss_conf.chandef))
3242 return -EINVAL;
3243
3244 mutex_lock(&local->chanctx_mtx);
3245 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3246 lockdep_is_held(&local->chanctx_mtx));
3247 if (!conf) {
3248 mutex_unlock(&local->chanctx_mtx);
3249 return -EBUSY;
3250 }
3251
3252 /* don't handle for multi-VIF cases */
3253 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3254 if (ieee80211_chanctx_refcount(local, chanctx) > 1) {
3255 mutex_unlock(&local->chanctx_mtx);
3256 return -EBUSY;
3257 }
3258 num_chanctx = 0;
3259 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3260 num_chanctx++;
3261 mutex_unlock(&local->chanctx_mtx);
3262
3263 if (num_chanctx > 1)
3264 return -EBUSY;
3265
3266 /* don't allow another channel switch if one is already active. */
3267 if (sdata->vif.csa_active)
3268 return -EBUSY;
3269
3270 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3271 if (err)
3272 return err;
3273
3274 sdata->csa_radar_required = params->radar_required;
3275
3276 if (params->block_tx)
3277 ieee80211_stop_queues_by_reason(&local->hw,
3278 IEEE80211_MAX_QUEUE_MAP,
3279 IEEE80211_QUEUE_STOP_REASON_CSA);
3280
3281 sdata->csa_chandef = params->chandef;
3282 sdata->vif.csa_active = true;
3283
3284 if (changed) {
3285 ieee80211_bss_info_change_notify(sdata, changed);
3286 drv_channel_switch_beacon(sdata, &params->chandef);
3287 } else {
3288 /* if the beacon didn't change, we can finalize immediately */
3289 ieee80211_csa_finalize(sdata);
3290 }
3291
3292 return 0;
3293 }
3294
3295 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3296 struct cfg80211_mgmt_tx_params *params,
3297 u64 *cookie)
3298 {
3299 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3300 struct ieee80211_local *local = sdata->local;
3301 struct sk_buff *skb;
3302 struct sta_info *sta;
3303 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3304 bool need_offchan = false;
3305 u32 flags;
3306 int ret;
3307
3308 if (params->dont_wait_for_ack)
3309 flags = IEEE80211_TX_CTL_NO_ACK;
3310 else
3311 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3312 IEEE80211_TX_CTL_REQ_TX_STATUS;
3313
3314 if (params->no_cck)
3315 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3316
3317 switch (sdata->vif.type) {
3318 case NL80211_IFTYPE_ADHOC:
3319 if (!sdata->vif.bss_conf.ibss_joined)
3320 need_offchan = true;
3321 /* fall through */
3322 #ifdef CONFIG_MAC80211_MESH
3323 case NL80211_IFTYPE_MESH_POINT:
3324 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3325 !sdata->u.mesh.mesh_id_len)
3326 need_offchan = true;
3327 /* fall through */
3328 #endif
3329 case NL80211_IFTYPE_AP:
3330 case NL80211_IFTYPE_AP_VLAN:
3331 case NL80211_IFTYPE_P2P_GO:
3332 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3333 !ieee80211_vif_is_mesh(&sdata->vif) &&
3334 !rcu_access_pointer(sdata->bss->beacon))
3335 need_offchan = true;
3336 if (!ieee80211_is_action(mgmt->frame_control) ||
3337 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3338 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3339 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3340 break;
3341 rcu_read_lock();
3342 sta = sta_info_get(sdata, mgmt->da);
3343 rcu_read_unlock();
3344 if (!sta)
3345 return -ENOLINK;
3346 break;
3347 case NL80211_IFTYPE_STATION:
3348 case NL80211_IFTYPE_P2P_CLIENT:
3349 if (!sdata->u.mgd.associated)
3350 need_offchan = true;
3351 break;
3352 case NL80211_IFTYPE_P2P_DEVICE:
3353 need_offchan = true;
3354 break;
3355 default:
3356 return -EOPNOTSUPP;
3357 }
3358
3359 /* configurations requiring offchan cannot work if no channel has been
3360 * specified
3361 */
3362 if (need_offchan && !params->chan)
3363 return -EINVAL;
3364
3365 mutex_lock(&local->mtx);
3366
3367 /* Check if the operating channel is the requested channel */
3368 if (!need_offchan) {
3369 struct ieee80211_chanctx_conf *chanctx_conf;
3370
3371 rcu_read_lock();
3372 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3373
3374 if (chanctx_conf) {
3375 need_offchan = params->chan &&
3376 (params->chan !=
3377 chanctx_conf->def.chan);
3378 } else if (!params->chan) {
3379 ret = -EINVAL;
3380 rcu_read_unlock();
3381 goto out_unlock;
3382 } else {
3383 need_offchan = true;
3384 }
3385 rcu_read_unlock();
3386 }
3387
3388 if (need_offchan && !params->offchan) {
3389 ret = -EBUSY;
3390 goto out_unlock;
3391 }
3392
3393 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3394 if (!skb) {
3395 ret = -ENOMEM;
3396 goto out_unlock;
3397 }
3398 skb_reserve(skb, local->hw.extra_tx_headroom);
3399
3400 memcpy(skb_put(skb, params->len), params->buf, params->len);
3401
3402 IEEE80211_SKB_CB(skb)->flags = flags;
3403
3404 skb->dev = sdata->dev;
3405
3406 if (!need_offchan) {
3407 *cookie = (unsigned long) skb;
3408 ieee80211_tx_skb(sdata, skb);
3409 ret = 0;
3410 goto out_unlock;
3411 }
3412
3413 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3414 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3415 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3416 IEEE80211_SKB_CB(skb)->hw_queue =
3417 local->hw.offchannel_tx_hw_queue;
3418
3419 /* This will handle all kinds of coalescing and immediate TX */
3420 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3421 params->wait, cookie, skb,
3422 IEEE80211_ROC_TYPE_MGMT_TX);
3423 if (ret)
3424 kfree_skb(skb);
3425 out_unlock:
3426 mutex_unlock(&local->mtx);
3427 return ret;
3428 }
3429
3430 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3431 struct wireless_dev *wdev,
3432 u64 cookie)
3433 {
3434 struct ieee80211_local *local = wiphy_priv(wiphy);
3435
3436 return ieee80211_cancel_roc(local, cookie, true);
3437 }
3438
3439 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3440 struct wireless_dev *wdev,
3441 u16 frame_type, bool reg)
3442 {
3443 struct ieee80211_local *local = wiphy_priv(wiphy);
3444
3445 switch (frame_type) {
3446 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3447 if (reg)
3448 local->probe_req_reg++;
3449 else
3450 local->probe_req_reg--;
3451
3452 if (!local->open_count)
3453 break;
3454
3455 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3456 break;
3457 default:
3458 break;
3459 }
3460 }
3461
3462 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3463 {
3464 struct ieee80211_local *local = wiphy_priv(wiphy);
3465
3466 if (local->started)
3467 return -EOPNOTSUPP;
3468
3469 return drv_set_antenna(local, tx_ant, rx_ant);
3470 }
3471
3472 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3473 {
3474 struct ieee80211_local *local = wiphy_priv(wiphy);
3475
3476 return drv_get_antenna(local, tx_ant, rx_ant);
3477 }
3478
3479 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3480 {
3481 struct ieee80211_local *local = wiphy_priv(wiphy);
3482
3483 return drv_set_ringparam(local, tx, rx);
3484 }
3485
3486 static void ieee80211_get_ringparam(struct wiphy *wiphy,
3487 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3488 {
3489 struct ieee80211_local *local = wiphy_priv(wiphy);
3490
3491 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3492 }
3493
3494 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3495 struct net_device *dev,
3496 struct cfg80211_gtk_rekey_data *data)
3497 {
3498 struct ieee80211_local *local = wiphy_priv(wiphy);
3499 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3500
3501 if (!local->ops->set_rekey_data)
3502 return -EOPNOTSUPP;
3503
3504 drv_set_rekey_data(local, sdata, data);
3505
3506 return 0;
3507 }
3508
3509 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3510 {
3511 u8 *pos = (void *)skb_put(skb, 7);
3512
3513 *pos++ = WLAN_EID_EXT_CAPABILITY;
3514 *pos++ = 5; /* len */
3515 *pos++ = 0x0;
3516 *pos++ = 0x0;
3517 *pos++ = 0x0;
3518 *pos++ = 0x0;
3519 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3520 }
3521
3522 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3523 {
3524 struct ieee80211_local *local = sdata->local;
3525 u16 capab;
3526
3527 capab = 0;
3528 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
3529 return capab;
3530
3531 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3532 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3533 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3534 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3535
3536 return capab;
3537 }
3538
3539 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3540 u8 *peer, u8 *bssid)
3541 {
3542 struct ieee80211_tdls_lnkie *lnkid;
3543
3544 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3545
3546 lnkid->ie_type = WLAN_EID_LINK_ID;
3547 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3548
3549 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3550 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3551 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3552 }
3553
3554 static int
3555 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3556 u8 *peer, u8 action_code, u8 dialog_token,
3557 u16 status_code, struct sk_buff *skb)
3558 {
3559 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3560 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3561 struct ieee80211_tdls_data *tf;
3562
3563 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3564
3565 memcpy(tf->da, peer, ETH_ALEN);
3566 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3567 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3568 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3569
3570 switch (action_code) {
3571 case WLAN_TDLS_SETUP_REQUEST:
3572 tf->category = WLAN_CATEGORY_TDLS;
3573 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3574
3575 skb_put(skb, sizeof(tf->u.setup_req));
3576 tf->u.setup_req.dialog_token = dialog_token;
3577 tf->u.setup_req.capability =
3578 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3579
3580 ieee80211_add_srates_ie(sdata, skb, false, band);
3581 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3582 ieee80211_tdls_add_ext_capab(skb);
3583 break;
3584 case WLAN_TDLS_SETUP_RESPONSE:
3585 tf->category = WLAN_CATEGORY_TDLS;
3586 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3587
3588 skb_put(skb, sizeof(tf->u.setup_resp));
3589 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3590 tf->u.setup_resp.dialog_token = dialog_token;
3591 tf->u.setup_resp.capability =
3592 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3593
3594 ieee80211_add_srates_ie(sdata, skb, false, band);
3595 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3596 ieee80211_tdls_add_ext_capab(skb);
3597 break;
3598 case WLAN_TDLS_SETUP_CONFIRM:
3599 tf->category = WLAN_CATEGORY_TDLS;
3600 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3601
3602 skb_put(skb, sizeof(tf->u.setup_cfm));
3603 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3604 tf->u.setup_cfm.dialog_token = dialog_token;
3605 break;
3606 case WLAN_TDLS_TEARDOWN:
3607 tf->category = WLAN_CATEGORY_TDLS;
3608 tf->action_code = WLAN_TDLS_TEARDOWN;
3609
3610 skb_put(skb, sizeof(tf->u.teardown));
3611 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3612 break;
3613 case WLAN_TDLS_DISCOVERY_REQUEST:
3614 tf->category = WLAN_CATEGORY_TDLS;
3615 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3616
3617 skb_put(skb, sizeof(tf->u.discover_req));
3618 tf->u.discover_req.dialog_token = dialog_token;
3619 break;
3620 default:
3621 return -EINVAL;
3622 }
3623
3624 return 0;
3625 }
3626
3627 static int
3628 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3629 u8 *peer, u8 action_code, u8 dialog_token,
3630 u16 status_code, struct sk_buff *skb)
3631 {
3632 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3633 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3634 struct ieee80211_mgmt *mgmt;
3635
3636 mgmt = (void *)skb_put(skb, 24);
3637 memset(mgmt, 0, 24);
3638 memcpy(mgmt->da, peer, ETH_ALEN);
3639 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3640 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3641
3642 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3643 IEEE80211_STYPE_ACTION);
3644
3645 switch (action_code) {
3646 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3647 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3648 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3649 mgmt->u.action.u.tdls_discover_resp.action_code =
3650 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3651 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3652 dialog_token;
3653 mgmt->u.action.u.tdls_discover_resp.capability =
3654 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3655
3656 ieee80211_add_srates_ie(sdata, skb, false, band);
3657 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3658 ieee80211_tdls_add_ext_capab(skb);
3659 break;
3660 default:
3661 return -EINVAL;
3662 }
3663
3664 return 0;
3665 }
3666
3667 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3668 u8 *peer, u8 action_code, u8 dialog_token,
3669 u16 status_code, u32 peer_capability,
3670 const u8 *extra_ies, size_t extra_ies_len)
3671 {
3672 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3673 struct ieee80211_local *local = sdata->local;
3674 struct sk_buff *skb = NULL;
3675 bool send_direct;
3676 int ret;
3677
3678 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3679 return -ENOTSUPP;
3680
3681 /* make sure we are in managed mode, and associated */
3682 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3683 !sdata->u.mgd.associated)
3684 return -EINVAL;
3685
3686 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3687 action_code, peer);
3688
3689 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3690 max(sizeof(struct ieee80211_mgmt),
3691 sizeof(struct ieee80211_tdls_data)) +
3692 50 + /* supported rates */
3693 7 + /* ext capab */
3694 extra_ies_len +
3695 sizeof(struct ieee80211_tdls_lnkie));
3696 if (!skb)
3697 return -ENOMEM;
3698
3699 skb_reserve(skb, local->hw.extra_tx_headroom);
3700
3701 switch (action_code) {
3702 case WLAN_TDLS_SETUP_REQUEST:
3703 case WLAN_TDLS_SETUP_RESPONSE:
3704 case WLAN_TDLS_SETUP_CONFIRM:
3705 case WLAN_TDLS_TEARDOWN:
3706 case WLAN_TDLS_DISCOVERY_REQUEST:
3707 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3708 action_code, dialog_token,
3709 status_code, skb);
3710 send_direct = false;
3711 break;
3712 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3713 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3714 dialog_token, status_code,
3715 skb);
3716 send_direct = true;
3717 break;
3718 default:
3719 ret = -ENOTSUPP;
3720 break;
3721 }
3722
3723 if (ret < 0)
3724 goto fail;
3725
3726 if (extra_ies_len)
3727 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3728
3729 /* the TDLS link IE is always added last */
3730 switch (action_code) {
3731 case WLAN_TDLS_SETUP_REQUEST:
3732 case WLAN_TDLS_SETUP_CONFIRM:
3733 case WLAN_TDLS_TEARDOWN:
3734 case WLAN_TDLS_DISCOVERY_REQUEST:
3735 /* we are the initiator */
3736 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3737 sdata->u.mgd.bssid);
3738 break;
3739 case WLAN_TDLS_SETUP_RESPONSE:
3740 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3741 /* we are the responder */
3742 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3743 sdata->u.mgd.bssid);
3744 break;
3745 default:
3746 ret = -ENOTSUPP;
3747 goto fail;
3748 }
3749
3750 if (send_direct) {
3751 ieee80211_tx_skb(sdata, skb);
3752 return 0;
3753 }
3754
3755 /*
3756 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3757 * we should default to AC_VI.
3758 */
3759 switch (action_code) {
3760 case WLAN_TDLS_SETUP_REQUEST:
3761 case WLAN_TDLS_SETUP_RESPONSE:
3762 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3763 skb->priority = 2;
3764 break;
3765 default:
3766 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3767 skb->priority = 5;
3768 break;
3769 }
3770
3771 /* disable bottom halves when entering the Tx path */
3772 local_bh_disable();
3773 ret = ieee80211_subif_start_xmit(skb, dev);
3774 local_bh_enable();
3775
3776 return ret;
3777
3778 fail:
3779 dev_kfree_skb(skb);
3780 return ret;
3781 }
3782
3783 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3784 u8 *peer, enum nl80211_tdls_operation oper)
3785 {
3786 struct sta_info *sta;
3787 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3788
3789 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3790 return -ENOTSUPP;
3791
3792 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3793 return -EINVAL;
3794
3795 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3796
3797 switch (oper) {
3798 case NL80211_TDLS_ENABLE_LINK:
3799 rcu_read_lock();
3800 sta = sta_info_get(sdata, peer);
3801 if (!sta) {
3802 rcu_read_unlock();
3803 return -ENOLINK;
3804 }
3805
3806 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3807 rcu_read_unlock();
3808 break;
3809 case NL80211_TDLS_DISABLE_LINK:
3810 return sta_info_destroy_addr(sdata, peer);
3811 case NL80211_TDLS_TEARDOWN:
3812 case NL80211_TDLS_SETUP:
3813 case NL80211_TDLS_DISCOVERY_REQ:
3814 /* We don't support in-driver setup/teardown/discovery */
3815 return -ENOTSUPP;
3816 default:
3817 return -ENOTSUPP;
3818 }
3819
3820 return 0;
3821 }
3822
3823 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3824 const u8 *peer, u64 *cookie)
3825 {
3826 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3827 struct ieee80211_local *local = sdata->local;
3828 struct ieee80211_qos_hdr *nullfunc;
3829 struct sk_buff *skb;
3830 int size = sizeof(*nullfunc);
3831 __le16 fc;
3832 bool qos;
3833 struct ieee80211_tx_info *info;
3834 struct sta_info *sta;
3835 struct ieee80211_chanctx_conf *chanctx_conf;
3836 enum ieee80211_band band;
3837
3838 rcu_read_lock();
3839 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3840 if (WARN_ON(!chanctx_conf)) {
3841 rcu_read_unlock();
3842 return -EINVAL;
3843 }
3844 band = chanctx_conf->def.chan->band;
3845 sta = sta_info_get_bss(sdata, peer);
3846 if (sta) {
3847 qos = test_sta_flag(sta, WLAN_STA_WME);
3848 } else {
3849 rcu_read_unlock();
3850 return -ENOLINK;
3851 }
3852
3853 if (qos) {
3854 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3855 IEEE80211_STYPE_QOS_NULLFUNC |
3856 IEEE80211_FCTL_FROMDS);
3857 } else {
3858 size -= 2;
3859 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3860 IEEE80211_STYPE_NULLFUNC |
3861 IEEE80211_FCTL_FROMDS);
3862 }
3863
3864 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3865 if (!skb) {
3866 rcu_read_unlock();
3867 return -ENOMEM;
3868 }
3869
3870 skb->dev = dev;
3871
3872 skb_reserve(skb, local->hw.extra_tx_headroom);
3873
3874 nullfunc = (void *) skb_put(skb, size);
3875 nullfunc->frame_control = fc;
3876 nullfunc->duration_id = 0;
3877 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3878 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3879 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3880 nullfunc->seq_ctrl = 0;
3881
3882 info = IEEE80211_SKB_CB(skb);
3883
3884 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3885 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3886
3887 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3888 skb->priority = 7;
3889 if (qos)
3890 nullfunc->qos_ctrl = cpu_to_le16(7);
3891
3892 local_bh_disable();
3893 ieee80211_xmit(sdata, skb, band);
3894 local_bh_enable();
3895 rcu_read_unlock();
3896
3897 *cookie = (unsigned long) skb;
3898 return 0;
3899 }
3900
3901 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3902 struct wireless_dev *wdev,
3903 struct cfg80211_chan_def *chandef)
3904 {
3905 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3906 struct ieee80211_local *local = wiphy_priv(wiphy);
3907 struct ieee80211_chanctx_conf *chanctx_conf;
3908 int ret = -ENODATA;
3909
3910 rcu_read_lock();
3911 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3912 if (chanctx_conf) {
3913 *chandef = chanctx_conf->def;
3914 ret = 0;
3915 } else if (local->open_count > 0 &&
3916 local->open_count == local->monitors &&
3917 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3918 if (local->use_chanctx)
3919 *chandef = local->monitor_chandef;
3920 else
3921 *chandef = local->_oper_chandef;
3922 ret = 0;
3923 }
3924 rcu_read_unlock();
3925
3926 return ret;
3927 }
3928
3929 #ifdef CONFIG_PM
3930 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3931 {
3932 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3933 }
3934 #endif
3935
3936 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3937 struct net_device *dev,
3938 struct cfg80211_qos_map *qos_map)
3939 {
3940 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3941 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3942
3943 if (qos_map) {
3944 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3945 if (!new_qos_map)
3946 return -ENOMEM;
3947 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3948 } else {
3949 /* A NULL qos_map was passed to disable QoS mapping */
3950 new_qos_map = NULL;
3951 }
3952
3953 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3954 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3955 if (old_qos_map)
3956 kfree_rcu(old_qos_map, rcu_head);
3957
3958 return 0;
3959 }
3960
3961 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3962 struct net_device *dev,
3963 struct cfg80211_chan_def *chandef)
3964 {
3965 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3966 int ret;
3967 u32 changed = 0;
3968
3969 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3970 if (ret == 0)
3971 ieee80211_bss_info_change_notify(sdata, changed);
3972
3973 return ret;
3974 }
3975
3976 const struct cfg80211_ops mac80211_config_ops = {
3977 .add_virtual_intf = ieee80211_add_iface,
3978 .del_virtual_intf = ieee80211_del_iface,
3979 .change_virtual_intf = ieee80211_change_iface,
3980 .start_p2p_device = ieee80211_start_p2p_device,
3981 .stop_p2p_device = ieee80211_stop_p2p_device,
3982 .add_key = ieee80211_add_key,
3983 .del_key = ieee80211_del_key,
3984 .get_key = ieee80211_get_key,
3985 .set_default_key = ieee80211_config_default_key,
3986 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3987 .start_ap = ieee80211_start_ap,
3988 .change_beacon = ieee80211_change_beacon,
3989 .stop_ap = ieee80211_stop_ap,
3990 .add_station = ieee80211_add_station,
3991 .del_station = ieee80211_del_station,
3992 .change_station = ieee80211_change_station,
3993 .get_station = ieee80211_get_station,
3994 .dump_station = ieee80211_dump_station,
3995 .dump_survey = ieee80211_dump_survey,
3996 #ifdef CONFIG_MAC80211_MESH
3997 .add_mpath = ieee80211_add_mpath,
3998 .del_mpath = ieee80211_del_mpath,
3999 .change_mpath = ieee80211_change_mpath,
4000 .get_mpath = ieee80211_get_mpath,
4001 .dump_mpath = ieee80211_dump_mpath,
4002 .update_mesh_config = ieee80211_update_mesh_config,
4003 .get_mesh_config = ieee80211_get_mesh_config,
4004 .join_mesh = ieee80211_join_mesh,
4005 .leave_mesh = ieee80211_leave_mesh,
4006 #endif
4007 .change_bss = ieee80211_change_bss,
4008 .set_txq_params = ieee80211_set_txq_params,
4009 .set_monitor_channel = ieee80211_set_monitor_channel,
4010 .suspend = ieee80211_suspend,
4011 .resume = ieee80211_resume,
4012 .scan = ieee80211_scan,
4013 .sched_scan_start = ieee80211_sched_scan_start,
4014 .sched_scan_stop = ieee80211_sched_scan_stop,
4015 .auth = ieee80211_auth,
4016 .assoc = ieee80211_assoc,
4017 .deauth = ieee80211_deauth,
4018 .disassoc = ieee80211_disassoc,
4019 .join_ibss = ieee80211_join_ibss,
4020 .leave_ibss = ieee80211_leave_ibss,
4021 .set_mcast_rate = ieee80211_set_mcast_rate,
4022 .set_wiphy_params = ieee80211_set_wiphy_params,
4023 .set_tx_power = ieee80211_set_tx_power,
4024 .get_tx_power = ieee80211_get_tx_power,
4025 .set_wds_peer = ieee80211_set_wds_peer,
4026 .rfkill_poll = ieee80211_rfkill_poll,
4027 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
4028 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
4029 .set_power_mgmt = ieee80211_set_power_mgmt,
4030 .set_bitrate_mask = ieee80211_set_bitrate_mask,
4031 .remain_on_channel = ieee80211_remain_on_channel,
4032 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
4033 .mgmt_tx = ieee80211_mgmt_tx,
4034 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
4035 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
4036 .mgmt_frame_register = ieee80211_mgmt_frame_register,
4037 .set_antenna = ieee80211_set_antenna,
4038 .get_antenna = ieee80211_get_antenna,
4039 .set_ringparam = ieee80211_set_ringparam,
4040 .get_ringparam = ieee80211_get_ringparam,
4041 .set_rekey_data = ieee80211_set_rekey_data,
4042 .tdls_oper = ieee80211_tdls_oper,
4043 .tdls_mgmt = ieee80211_tdls_mgmt,
4044 .probe_client = ieee80211_probe_client,
4045 .set_noack_map = ieee80211_set_noack_map,
4046 #ifdef CONFIG_PM
4047 .set_wakeup = ieee80211_set_wakeup,
4048 #endif
4049 .get_et_sset_count = ieee80211_get_et_sset_count,
4050 .get_et_stats = ieee80211_get_et_stats,
4051 .get_et_strings = ieee80211_get_et_strings,
4052 .get_channel = ieee80211_cfg_get_channel,
4053 .start_radar_detection = ieee80211_start_radar_detection,
4054 .channel_switch = ieee80211_channel_switch,
4055 .set_qos_map = ieee80211_set_qos_map,
4056 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
4057 };
Linux kernel - Deliverables
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