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7d358037d4e984bc5af4345ccb95336da5c7d1a0
[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 bool ieee80211_csa_needs_block_tx(struct ieee80211_local *local)
1088 {
1089 struct ieee80211_sub_if_data *sdata;
1090
1091 lockdep_assert_held(&local->mtx);
1092
1093 rcu_read_lock();
1094 list_for_each_entry_rcu(sdata, &local->interfaces, list) {
1095 if (!ieee80211_sdata_running(sdata))
1096 continue;
1097
1098 if (!sdata->vif.csa_active)
1099 continue;
1100
1101 if (!sdata->csa_block_tx)
1102 continue;
1103
1104 rcu_read_unlock();
1105 return true;
1106 }
1107 rcu_read_unlock();
1108
1109 return false;
1110 }
1111
1112 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1113 {
1114 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1115 struct ieee80211_sub_if_data *vlan;
1116 struct ieee80211_local *local = sdata->local;
1117 struct beacon_data *old_beacon;
1118 struct probe_resp *old_probe_resp;
1119 struct cfg80211_chan_def chandef;
1120
1121 sdata_assert_lock(sdata);
1122
1123 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1124 if (!old_beacon)
1125 return -ENOENT;
1126 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1127
1128 /* abort any running channel switch */
1129 mutex_lock(&local->mtx);
1130 sdata->vif.csa_active = false;
1131 if (!ieee80211_csa_needs_block_tx(local))
1132 ieee80211_wake_queues_by_reason(&local->hw,
1133 IEEE80211_MAX_QUEUE_MAP,
1134 IEEE80211_QUEUE_STOP_REASON_CSA);
1135 mutex_unlock(&local->mtx);
1136
1137 kfree(sdata->u.ap.next_beacon);
1138 sdata->u.ap.next_beacon = NULL;
1139
1140 /* turn off carrier for this interface and dependent VLANs */
1141 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1142 netif_carrier_off(vlan->dev);
1143 netif_carrier_off(dev);
1144
1145 /* remove beacon and probe response */
1146 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1147 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1148 kfree_rcu(old_beacon, rcu_head);
1149 if (old_probe_resp)
1150 kfree_rcu(old_probe_resp, rcu_head);
1151 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
1152
1153 __sta_info_flush(sdata, true);
1154 ieee80211_free_keys(sdata, true);
1155
1156 sdata->vif.bss_conf.enable_beacon = false;
1157 sdata->vif.bss_conf.ssid_len = 0;
1158 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1159 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1160
1161 if (sdata->wdev.cac_started) {
1162 chandef = sdata->vif.bss_conf.chandef;
1163 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1164 cfg80211_cac_event(sdata->dev, &chandef,
1165 NL80211_RADAR_CAC_ABORTED,
1166 GFP_KERNEL);
1167 }
1168
1169 drv_stop_ap(sdata->local, sdata);
1170
1171 /* free all potentially still buffered bcast frames */
1172 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1173 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1174
1175 mutex_lock(&local->mtx);
1176 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1177 ieee80211_vif_release_channel(sdata);
1178 mutex_unlock(&local->mtx);
1179
1180 return 0;
1181 }
1182
1183 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1184 struct iapp_layer2_update {
1185 u8 da[ETH_ALEN]; /* broadcast */
1186 u8 sa[ETH_ALEN]; /* STA addr */
1187 __be16 len; /* 6 */
1188 u8 dsap; /* 0 */
1189 u8 ssap; /* 0 */
1190 u8 control;
1191 u8 xid_info[3];
1192 } __packed;
1193
1194 static void ieee80211_send_layer2_update(struct sta_info *sta)
1195 {
1196 struct iapp_layer2_update *msg;
1197 struct sk_buff *skb;
1198
1199 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1200 * bridge devices */
1201
1202 skb = dev_alloc_skb(sizeof(*msg));
1203 if (!skb)
1204 return;
1205 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1206
1207 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1208 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1209
1210 eth_broadcast_addr(msg->da);
1211 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1212 msg->len = htons(6);
1213 msg->dsap = 0;
1214 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1215 msg->control = 0xaf; /* XID response lsb.1111F101.
1216 * F=0 (no poll command; unsolicited frame) */
1217 msg->xid_info[0] = 0x81; /* XID format identifier */
1218 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1219 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1220
1221 skb->dev = sta->sdata->dev;
1222 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1223 memset(skb->cb, 0, sizeof(skb->cb));
1224 netif_rx_ni(skb);
1225 }
1226
1227 static int sta_apply_auth_flags(struct ieee80211_local *local,
1228 struct sta_info *sta,
1229 u32 mask, u32 set)
1230 {
1231 int ret;
1232
1233 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1234 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1235 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1236 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1237 if (ret)
1238 return ret;
1239 }
1240
1241 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1242 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1243 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1244 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1245 if (ret)
1246 return ret;
1247 }
1248
1249 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1250 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1251 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1252 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1253 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1254 else
1255 ret = 0;
1256 if (ret)
1257 return ret;
1258 }
1259
1260 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1261 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1262 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1263 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1264 if (ret)
1265 return ret;
1266 }
1267
1268 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1269 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1270 test_sta_flag(sta, WLAN_STA_AUTH)) {
1271 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1272 if (ret)
1273 return ret;
1274 }
1275
1276 return 0;
1277 }
1278
1279 static int sta_apply_parameters(struct ieee80211_local *local,
1280 struct sta_info *sta,
1281 struct station_parameters *params)
1282 {
1283 int ret = 0;
1284 struct ieee80211_supported_band *sband;
1285 struct ieee80211_sub_if_data *sdata = sta->sdata;
1286 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1287 u32 mask, set;
1288
1289 sband = local->hw.wiphy->bands[band];
1290
1291 mask = params->sta_flags_mask;
1292 set = params->sta_flags_set;
1293
1294 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1295 /*
1296 * In mesh mode, ASSOCIATED isn't part of the nl80211
1297 * API but must follow AUTHENTICATED for driver state.
1298 */
1299 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1300 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1301 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1302 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1303 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1304 /*
1305 * TDLS -- everything follows authorized, but
1306 * only becoming authorized is possible, not
1307 * going back
1308 */
1309 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1310 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1311 BIT(NL80211_STA_FLAG_ASSOCIATED);
1312 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1313 BIT(NL80211_STA_FLAG_ASSOCIATED);
1314 }
1315 }
1316
1317 ret = sta_apply_auth_flags(local, sta, mask, set);
1318 if (ret)
1319 return ret;
1320
1321 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1322 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1323 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1324 else
1325 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1326 }
1327
1328 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1329 if (set & BIT(NL80211_STA_FLAG_WME)) {
1330 set_sta_flag(sta, WLAN_STA_WME);
1331 sta->sta.wme = true;
1332 } else {
1333 clear_sta_flag(sta, WLAN_STA_WME);
1334 sta->sta.wme = false;
1335 }
1336 }
1337
1338 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1339 if (set & BIT(NL80211_STA_FLAG_MFP))
1340 set_sta_flag(sta, WLAN_STA_MFP);
1341 else
1342 clear_sta_flag(sta, WLAN_STA_MFP);
1343 }
1344
1345 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1346 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1347 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1348 else
1349 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1350 }
1351
1352 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1353 sta->sta.uapsd_queues = params->uapsd_queues;
1354 sta->sta.max_sp = params->max_sp;
1355 }
1356
1357 /*
1358 * cfg80211 validates this (1-2007) and allows setting the AID
1359 * only when creating a new station entry
1360 */
1361 if (params->aid)
1362 sta->sta.aid = params->aid;
1363
1364 /*
1365 * Some of the following updates would be racy if called on an
1366 * existing station, via ieee80211_change_station(). However,
1367 * all such changes are rejected by cfg80211 except for updates
1368 * changing the supported rates on an existing but not yet used
1369 * TDLS peer.
1370 */
1371
1372 if (params->listen_interval >= 0)
1373 sta->listen_interval = params->listen_interval;
1374
1375 if (params->supported_rates) {
1376 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1377 sband, params->supported_rates,
1378 params->supported_rates_len,
1379 &sta->sta.supp_rates[band]);
1380 }
1381
1382 if (params->ht_capa)
1383 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1384 params->ht_capa, sta);
1385
1386 if (params->vht_capa)
1387 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1388 params->vht_capa, sta);
1389
1390 if (params->opmode_notif_used) {
1391 /* returned value is only needed for rc update, but the
1392 * rc isn't initialized here yet, so ignore it
1393 */
1394 __ieee80211_vht_handle_opmode(sdata, sta,
1395 params->opmode_notif,
1396 band, false);
1397 }
1398
1399 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1400 #ifdef CONFIG_MAC80211_MESH
1401 u32 changed = 0;
1402
1403 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1404 switch (params->plink_state) {
1405 case NL80211_PLINK_ESTAB:
1406 if (sta->plink_state != NL80211_PLINK_ESTAB)
1407 changed = mesh_plink_inc_estab_count(
1408 sdata);
1409 sta->plink_state = params->plink_state;
1410
1411 ieee80211_mps_sta_status_update(sta);
1412 changed |= ieee80211_mps_set_sta_local_pm(sta,
1413 sdata->u.mesh.mshcfg.power_mode);
1414 break;
1415 case NL80211_PLINK_LISTEN:
1416 case NL80211_PLINK_BLOCKED:
1417 case NL80211_PLINK_OPN_SNT:
1418 case NL80211_PLINK_OPN_RCVD:
1419 case NL80211_PLINK_CNF_RCVD:
1420 case NL80211_PLINK_HOLDING:
1421 if (sta->plink_state == NL80211_PLINK_ESTAB)
1422 changed = mesh_plink_dec_estab_count(
1423 sdata);
1424 sta->plink_state = params->plink_state;
1425
1426 ieee80211_mps_sta_status_update(sta);
1427 changed |= ieee80211_mps_set_sta_local_pm(sta,
1428 NL80211_MESH_POWER_UNKNOWN);
1429 break;
1430 default:
1431 /* nothing */
1432 break;
1433 }
1434 }
1435
1436 switch (params->plink_action) {
1437 case NL80211_PLINK_ACTION_NO_ACTION:
1438 /* nothing */
1439 break;
1440 case NL80211_PLINK_ACTION_OPEN:
1441 changed |= mesh_plink_open(sta);
1442 break;
1443 case NL80211_PLINK_ACTION_BLOCK:
1444 changed |= mesh_plink_block(sta);
1445 break;
1446 }
1447
1448 if (params->local_pm)
1449 changed |=
1450 ieee80211_mps_set_sta_local_pm(sta,
1451 params->local_pm);
1452 ieee80211_mbss_info_change_notify(sdata, changed);
1453 #endif
1454 }
1455
1456 return 0;
1457 }
1458
1459 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1460 u8 *mac, struct station_parameters *params)
1461 {
1462 struct ieee80211_local *local = wiphy_priv(wiphy);
1463 struct sta_info *sta;
1464 struct ieee80211_sub_if_data *sdata;
1465 int err;
1466 int layer2_update;
1467
1468 if (params->vlan) {
1469 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1470
1471 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1472 sdata->vif.type != NL80211_IFTYPE_AP)
1473 return -EINVAL;
1474 } else
1475 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1476
1477 if (ether_addr_equal(mac, sdata->vif.addr))
1478 return -EINVAL;
1479
1480 if (is_multicast_ether_addr(mac))
1481 return -EINVAL;
1482
1483 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1484 if (!sta)
1485 return -ENOMEM;
1486
1487 /*
1488 * defaults -- if userspace wants something else we'll
1489 * change it accordingly in sta_apply_parameters()
1490 */
1491 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1492 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1493 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1494 } else {
1495 sta->sta.tdls = true;
1496 }
1497
1498 err = sta_apply_parameters(local, sta, params);
1499 if (err) {
1500 sta_info_free(local, sta);
1501 return err;
1502 }
1503
1504 /*
1505 * for TDLS, rate control should be initialized only when
1506 * rates are known and station is marked authorized
1507 */
1508 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1509 rate_control_rate_init(sta);
1510
1511 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1512 sdata->vif.type == NL80211_IFTYPE_AP;
1513
1514 err = sta_info_insert_rcu(sta);
1515 if (err) {
1516 rcu_read_unlock();
1517 return err;
1518 }
1519
1520 if (layer2_update)
1521 ieee80211_send_layer2_update(sta);
1522
1523 rcu_read_unlock();
1524
1525 return 0;
1526 }
1527
1528 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1529 u8 *mac)
1530 {
1531 struct ieee80211_sub_if_data *sdata;
1532
1533 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1534
1535 if (mac)
1536 return sta_info_destroy_addr_bss(sdata, mac);
1537
1538 sta_info_flush(sdata);
1539 return 0;
1540 }
1541
1542 static int ieee80211_change_station(struct wiphy *wiphy,
1543 struct net_device *dev, u8 *mac,
1544 struct station_parameters *params)
1545 {
1546 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1547 struct ieee80211_local *local = wiphy_priv(wiphy);
1548 struct sta_info *sta;
1549 struct ieee80211_sub_if_data *vlansdata;
1550 enum cfg80211_station_type statype;
1551 int err;
1552
1553 mutex_lock(&local->sta_mtx);
1554
1555 sta = sta_info_get_bss(sdata, mac);
1556 if (!sta) {
1557 err = -ENOENT;
1558 goto out_err;
1559 }
1560
1561 switch (sdata->vif.type) {
1562 case NL80211_IFTYPE_MESH_POINT:
1563 if (sdata->u.mesh.user_mpm)
1564 statype = CFG80211_STA_MESH_PEER_USER;
1565 else
1566 statype = CFG80211_STA_MESH_PEER_KERNEL;
1567 break;
1568 case NL80211_IFTYPE_ADHOC:
1569 statype = CFG80211_STA_IBSS;
1570 break;
1571 case NL80211_IFTYPE_STATION:
1572 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1573 statype = CFG80211_STA_AP_STA;
1574 break;
1575 }
1576 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1577 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1578 else
1579 statype = CFG80211_STA_TDLS_PEER_SETUP;
1580 break;
1581 case NL80211_IFTYPE_AP:
1582 case NL80211_IFTYPE_AP_VLAN:
1583 statype = CFG80211_STA_AP_CLIENT;
1584 break;
1585 default:
1586 err = -EOPNOTSUPP;
1587 goto out_err;
1588 }
1589
1590 err = cfg80211_check_station_change(wiphy, params, statype);
1591 if (err)
1592 goto out_err;
1593
1594 if (params->vlan && params->vlan != sta->sdata->dev) {
1595 bool prev_4addr = false;
1596 bool new_4addr = false;
1597
1598 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1599
1600 if (params->vlan->ieee80211_ptr->use_4addr) {
1601 if (vlansdata->u.vlan.sta) {
1602 err = -EBUSY;
1603 goto out_err;
1604 }
1605
1606 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1607 new_4addr = true;
1608 }
1609
1610 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1611 sta->sdata->u.vlan.sta) {
1612 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
1613 prev_4addr = true;
1614 }
1615
1616 sta->sdata = vlansdata;
1617
1618 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1619 prev_4addr != new_4addr) {
1620 if (new_4addr)
1621 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1622 else
1623 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1624 }
1625
1626 ieee80211_send_layer2_update(sta);
1627 }
1628
1629 err = sta_apply_parameters(local, sta, params);
1630 if (err)
1631 goto out_err;
1632
1633 /* When peer becomes authorized, init rate control as well */
1634 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1635 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1636 rate_control_rate_init(sta);
1637
1638 mutex_unlock(&local->sta_mtx);
1639
1640 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1641 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1642 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1643 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1644 sta_info_tx_streams(sta) != 1) {
1645 ht_dbg(sta->sdata,
1646 "%pM just authorized and MIMO capable - update SMPS\n",
1647 sta->sta.addr);
1648 ieee80211_send_smps_action(sta->sdata,
1649 sta->sdata->bss->req_smps,
1650 sta->sta.addr,
1651 sta->sdata->vif.bss_conf.bssid);
1652 }
1653
1654 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1655 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1656 ieee80211_recalc_ps(local, -1);
1657 ieee80211_recalc_ps_vif(sdata);
1658 }
1659
1660 return 0;
1661 out_err:
1662 mutex_unlock(&local->sta_mtx);
1663 return err;
1664 }
1665
1666 #ifdef CONFIG_MAC80211_MESH
1667 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1668 u8 *dst, u8 *next_hop)
1669 {
1670 struct ieee80211_sub_if_data *sdata;
1671 struct mesh_path *mpath;
1672 struct sta_info *sta;
1673
1674 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1675
1676 rcu_read_lock();
1677 sta = sta_info_get(sdata, next_hop);
1678 if (!sta) {
1679 rcu_read_unlock();
1680 return -ENOENT;
1681 }
1682
1683 mpath = mesh_path_add(sdata, dst);
1684 if (IS_ERR(mpath)) {
1685 rcu_read_unlock();
1686 return PTR_ERR(mpath);
1687 }
1688
1689 mesh_path_fix_nexthop(mpath, sta);
1690
1691 rcu_read_unlock();
1692 return 0;
1693 }
1694
1695 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1696 u8 *dst)
1697 {
1698 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1699
1700 if (dst)
1701 return mesh_path_del(sdata, dst);
1702
1703 mesh_path_flush_by_iface(sdata);
1704 return 0;
1705 }
1706
1707 static int ieee80211_change_mpath(struct wiphy *wiphy,
1708 struct net_device *dev,
1709 u8 *dst, u8 *next_hop)
1710 {
1711 struct ieee80211_sub_if_data *sdata;
1712 struct mesh_path *mpath;
1713 struct sta_info *sta;
1714
1715 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1716
1717 rcu_read_lock();
1718
1719 sta = sta_info_get(sdata, next_hop);
1720 if (!sta) {
1721 rcu_read_unlock();
1722 return -ENOENT;
1723 }
1724
1725 mpath = mesh_path_lookup(sdata, dst);
1726 if (!mpath) {
1727 rcu_read_unlock();
1728 return -ENOENT;
1729 }
1730
1731 mesh_path_fix_nexthop(mpath, sta);
1732
1733 rcu_read_unlock();
1734 return 0;
1735 }
1736
1737 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1738 struct mpath_info *pinfo)
1739 {
1740 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1741
1742 if (next_hop_sta)
1743 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1744 else
1745 memset(next_hop, 0, ETH_ALEN);
1746
1747 memset(pinfo, 0, sizeof(*pinfo));
1748
1749 pinfo->generation = mesh_paths_generation;
1750
1751 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1752 MPATH_INFO_SN |
1753 MPATH_INFO_METRIC |
1754 MPATH_INFO_EXPTIME |
1755 MPATH_INFO_DISCOVERY_TIMEOUT |
1756 MPATH_INFO_DISCOVERY_RETRIES |
1757 MPATH_INFO_FLAGS;
1758
1759 pinfo->frame_qlen = mpath->frame_queue.qlen;
1760 pinfo->sn = mpath->sn;
1761 pinfo->metric = mpath->metric;
1762 if (time_before(jiffies, mpath->exp_time))
1763 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1764 pinfo->discovery_timeout =
1765 jiffies_to_msecs(mpath->discovery_timeout);
1766 pinfo->discovery_retries = mpath->discovery_retries;
1767 if (mpath->flags & MESH_PATH_ACTIVE)
1768 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1769 if (mpath->flags & MESH_PATH_RESOLVING)
1770 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1771 if (mpath->flags & MESH_PATH_SN_VALID)
1772 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1773 if (mpath->flags & MESH_PATH_FIXED)
1774 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1775 if (mpath->flags & MESH_PATH_RESOLVED)
1776 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1777 }
1778
1779 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1780 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1781
1782 {
1783 struct ieee80211_sub_if_data *sdata;
1784 struct mesh_path *mpath;
1785
1786 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1787
1788 rcu_read_lock();
1789 mpath = mesh_path_lookup(sdata, dst);
1790 if (!mpath) {
1791 rcu_read_unlock();
1792 return -ENOENT;
1793 }
1794 memcpy(dst, mpath->dst, ETH_ALEN);
1795 mpath_set_pinfo(mpath, next_hop, pinfo);
1796 rcu_read_unlock();
1797 return 0;
1798 }
1799
1800 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1801 int idx, u8 *dst, u8 *next_hop,
1802 struct mpath_info *pinfo)
1803 {
1804 struct ieee80211_sub_if_data *sdata;
1805 struct mesh_path *mpath;
1806
1807 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1808
1809 rcu_read_lock();
1810 mpath = mesh_path_lookup_by_idx(sdata, idx);
1811 if (!mpath) {
1812 rcu_read_unlock();
1813 return -ENOENT;
1814 }
1815 memcpy(dst, mpath->dst, ETH_ALEN);
1816 mpath_set_pinfo(mpath, next_hop, pinfo);
1817 rcu_read_unlock();
1818 return 0;
1819 }
1820
1821 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1822 struct net_device *dev,
1823 struct mesh_config *conf)
1824 {
1825 struct ieee80211_sub_if_data *sdata;
1826 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1827
1828 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1829 return 0;
1830 }
1831
1832 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1833 {
1834 return (mask >> (parm-1)) & 0x1;
1835 }
1836
1837 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1838 const struct mesh_setup *setup)
1839 {
1840 u8 *new_ie;
1841 const u8 *old_ie;
1842 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1843 struct ieee80211_sub_if_data, u.mesh);
1844
1845 /* allocate information elements */
1846 new_ie = NULL;
1847 old_ie = ifmsh->ie;
1848
1849 if (setup->ie_len) {
1850 new_ie = kmemdup(setup->ie, setup->ie_len,
1851 GFP_KERNEL);
1852 if (!new_ie)
1853 return -ENOMEM;
1854 }
1855 ifmsh->ie_len = setup->ie_len;
1856 ifmsh->ie = new_ie;
1857 kfree(old_ie);
1858
1859 /* now copy the rest of the setup parameters */
1860 ifmsh->mesh_id_len = setup->mesh_id_len;
1861 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1862 ifmsh->mesh_sp_id = setup->sync_method;
1863 ifmsh->mesh_pp_id = setup->path_sel_proto;
1864 ifmsh->mesh_pm_id = setup->path_metric;
1865 ifmsh->user_mpm = setup->user_mpm;
1866 ifmsh->mesh_auth_id = setup->auth_id;
1867 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1868 if (setup->is_authenticated)
1869 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1870 if (setup->is_secure)
1871 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1872
1873 /* mcast rate setting in Mesh Node */
1874 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1875 sizeof(setup->mcast_rate));
1876 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1877
1878 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1879 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1880
1881 return 0;
1882 }
1883
1884 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1885 struct net_device *dev, u32 mask,
1886 const struct mesh_config *nconf)
1887 {
1888 struct mesh_config *conf;
1889 struct ieee80211_sub_if_data *sdata;
1890 struct ieee80211_if_mesh *ifmsh;
1891
1892 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1893 ifmsh = &sdata->u.mesh;
1894
1895 /* Set the config options which we are interested in setting */
1896 conf = &(sdata->u.mesh.mshcfg);
1897 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1898 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1899 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1900 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1901 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1902 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1903 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1904 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1905 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1906 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1907 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1908 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1909 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1910 conf->element_ttl = nconf->element_ttl;
1911 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1912 if (ifmsh->user_mpm)
1913 return -EBUSY;
1914 conf->auto_open_plinks = nconf->auto_open_plinks;
1915 }
1916 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1917 conf->dot11MeshNbrOffsetMaxNeighbor =
1918 nconf->dot11MeshNbrOffsetMaxNeighbor;
1919 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1920 conf->dot11MeshHWMPmaxPREQretries =
1921 nconf->dot11MeshHWMPmaxPREQretries;
1922 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1923 conf->path_refresh_time = nconf->path_refresh_time;
1924 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1925 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1926 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1927 conf->dot11MeshHWMPactivePathTimeout =
1928 nconf->dot11MeshHWMPactivePathTimeout;
1929 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1930 conf->dot11MeshHWMPpreqMinInterval =
1931 nconf->dot11MeshHWMPpreqMinInterval;
1932 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1933 conf->dot11MeshHWMPperrMinInterval =
1934 nconf->dot11MeshHWMPperrMinInterval;
1935 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1936 mask))
1937 conf->dot11MeshHWMPnetDiameterTraversalTime =
1938 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1939 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1940 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1941 ieee80211_mesh_root_setup(ifmsh);
1942 }
1943 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1944 /* our current gate announcement implementation rides on root
1945 * announcements, so require this ifmsh to also be a root node
1946 * */
1947 if (nconf->dot11MeshGateAnnouncementProtocol &&
1948 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1949 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1950 ieee80211_mesh_root_setup(ifmsh);
1951 }
1952 conf->dot11MeshGateAnnouncementProtocol =
1953 nconf->dot11MeshGateAnnouncementProtocol;
1954 }
1955 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1956 conf->dot11MeshHWMPRannInterval =
1957 nconf->dot11MeshHWMPRannInterval;
1958 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1959 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1960 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1961 /* our RSSI threshold implementation is supported only for
1962 * devices that report signal in dBm.
1963 */
1964 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1965 return -ENOTSUPP;
1966 conf->rssi_threshold = nconf->rssi_threshold;
1967 }
1968 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1969 conf->ht_opmode = nconf->ht_opmode;
1970 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1971 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1972 }
1973 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1974 conf->dot11MeshHWMPactivePathToRootTimeout =
1975 nconf->dot11MeshHWMPactivePathToRootTimeout;
1976 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1977 conf->dot11MeshHWMProotInterval =
1978 nconf->dot11MeshHWMProotInterval;
1979 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1980 conf->dot11MeshHWMPconfirmationInterval =
1981 nconf->dot11MeshHWMPconfirmationInterval;
1982 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1983 conf->power_mode = nconf->power_mode;
1984 ieee80211_mps_local_status_update(sdata);
1985 }
1986 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1987 conf->dot11MeshAwakeWindowDuration =
1988 nconf->dot11MeshAwakeWindowDuration;
1989 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1990 conf->plink_timeout = nconf->plink_timeout;
1991 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1992 return 0;
1993 }
1994
1995 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1996 const struct mesh_config *conf,
1997 const struct mesh_setup *setup)
1998 {
1999 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2000 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
2001 int err;
2002
2003 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
2004 err = copy_mesh_setup(ifmsh, setup);
2005 if (err)
2006 return err;
2007
2008 /* can mesh use other SMPS modes? */
2009 sdata->smps_mode = IEEE80211_SMPS_OFF;
2010 sdata->needed_rx_chains = sdata->local->rx_chains;
2011
2012 mutex_lock(&sdata->local->mtx);
2013 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
2014 IEEE80211_CHANCTX_SHARED);
2015 mutex_unlock(&sdata->local->mtx);
2016 if (err)
2017 return err;
2018
2019 return ieee80211_start_mesh(sdata);
2020 }
2021
2022 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
2023 {
2024 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2025
2026 ieee80211_stop_mesh(sdata);
2027 mutex_lock(&sdata->local->mtx);
2028 ieee80211_vif_release_channel(sdata);
2029 mutex_unlock(&sdata->local->mtx);
2030
2031 return 0;
2032 }
2033 #endif
2034
2035 static int ieee80211_change_bss(struct wiphy *wiphy,
2036 struct net_device *dev,
2037 struct bss_parameters *params)
2038 {
2039 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2040 enum ieee80211_band band;
2041 u32 changed = 0;
2042
2043 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
2044 return -ENOENT;
2045
2046 band = ieee80211_get_sdata_band(sdata);
2047
2048 if (params->use_cts_prot >= 0) {
2049 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
2050 changed |= BSS_CHANGED_ERP_CTS_PROT;
2051 }
2052 if (params->use_short_preamble >= 0) {
2053 sdata->vif.bss_conf.use_short_preamble =
2054 params->use_short_preamble;
2055 changed |= BSS_CHANGED_ERP_PREAMBLE;
2056 }
2057
2058 if (!sdata->vif.bss_conf.use_short_slot &&
2059 band == IEEE80211_BAND_5GHZ) {
2060 sdata->vif.bss_conf.use_short_slot = true;
2061 changed |= BSS_CHANGED_ERP_SLOT;
2062 }
2063
2064 if (params->use_short_slot_time >= 0) {
2065 sdata->vif.bss_conf.use_short_slot =
2066 params->use_short_slot_time;
2067 changed |= BSS_CHANGED_ERP_SLOT;
2068 }
2069
2070 if (params->basic_rates) {
2071 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2072 wiphy->bands[band],
2073 params->basic_rates,
2074 params->basic_rates_len,
2075 &sdata->vif.bss_conf.basic_rates);
2076 changed |= BSS_CHANGED_BASIC_RATES;
2077 }
2078
2079 if (params->ap_isolate >= 0) {
2080 if (params->ap_isolate)
2081 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2082 else
2083 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2084 }
2085
2086 if (params->ht_opmode >= 0) {
2087 sdata->vif.bss_conf.ht_operation_mode =
2088 (u16) params->ht_opmode;
2089 changed |= BSS_CHANGED_HT;
2090 }
2091
2092 if (params->p2p_ctwindow >= 0) {
2093 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2094 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2095 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2096 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2097 changed |= BSS_CHANGED_P2P_PS;
2098 }
2099
2100 if (params->p2p_opp_ps > 0) {
2101 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2102 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2103 changed |= BSS_CHANGED_P2P_PS;
2104 } else if (params->p2p_opp_ps == 0) {
2105 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2106 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2107 changed |= BSS_CHANGED_P2P_PS;
2108 }
2109
2110 ieee80211_bss_info_change_notify(sdata, changed);
2111
2112 return 0;
2113 }
2114
2115 static int ieee80211_set_txq_params(struct wiphy *wiphy,
2116 struct net_device *dev,
2117 struct ieee80211_txq_params *params)
2118 {
2119 struct ieee80211_local *local = wiphy_priv(wiphy);
2120 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2121 struct ieee80211_tx_queue_params p;
2122
2123 if (!local->ops->conf_tx)
2124 return -EOPNOTSUPP;
2125
2126 if (local->hw.queues < IEEE80211_NUM_ACS)
2127 return -EOPNOTSUPP;
2128
2129 memset(&p, 0, sizeof(p));
2130 p.aifs = params->aifs;
2131 p.cw_max = params->cwmax;
2132 p.cw_min = params->cwmin;
2133 p.txop = params->txop;
2134
2135 /*
2136 * Setting tx queue params disables u-apsd because it's only
2137 * called in master mode.
2138 */
2139 p.uapsd = false;
2140
2141 sdata->tx_conf[params->ac] = p;
2142 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2143 wiphy_debug(local->hw.wiphy,
2144 "failed to set TX queue parameters for AC %d\n",
2145 params->ac);
2146 return -EINVAL;
2147 }
2148
2149 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2150
2151 return 0;
2152 }
2153
2154 #ifdef CONFIG_PM
2155 static int ieee80211_suspend(struct wiphy *wiphy,
2156 struct cfg80211_wowlan *wowlan)
2157 {
2158 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2159 }
2160
2161 static int ieee80211_resume(struct wiphy *wiphy)
2162 {
2163 return __ieee80211_resume(wiphy_priv(wiphy));
2164 }
2165 #else
2166 #define ieee80211_suspend NULL
2167 #define ieee80211_resume NULL
2168 #endif
2169
2170 static int ieee80211_scan(struct wiphy *wiphy,
2171 struct cfg80211_scan_request *req)
2172 {
2173 struct ieee80211_sub_if_data *sdata;
2174
2175 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2176
2177 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2178 case NL80211_IFTYPE_STATION:
2179 case NL80211_IFTYPE_ADHOC:
2180 case NL80211_IFTYPE_MESH_POINT:
2181 case NL80211_IFTYPE_P2P_CLIENT:
2182 case NL80211_IFTYPE_P2P_DEVICE:
2183 break;
2184 case NL80211_IFTYPE_P2P_GO:
2185 if (sdata->local->ops->hw_scan)
2186 break;
2187 /*
2188 * FIXME: implement NoA while scanning in software,
2189 * for now fall through to allow scanning only when
2190 * beaconing hasn't been configured yet
2191 */
2192 case NL80211_IFTYPE_AP:
2193 /*
2194 * If the scan has been forced (and the driver supports
2195 * forcing), don't care about being beaconing already.
2196 * This will create problems to the attached stations (e.g. all
2197 * the frames sent while scanning on other channel will be
2198 * lost)
2199 */
2200 if (sdata->u.ap.beacon &&
2201 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2202 !(req->flags & NL80211_SCAN_FLAG_AP)))
2203 return -EOPNOTSUPP;
2204 break;
2205 default:
2206 return -EOPNOTSUPP;
2207 }
2208
2209 return ieee80211_request_scan(sdata, req);
2210 }
2211
2212 static int
2213 ieee80211_sched_scan_start(struct wiphy *wiphy,
2214 struct net_device *dev,
2215 struct cfg80211_sched_scan_request *req)
2216 {
2217 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2218
2219 if (!sdata->local->ops->sched_scan_start)
2220 return -EOPNOTSUPP;
2221
2222 return ieee80211_request_sched_scan_start(sdata, req);
2223 }
2224
2225 static int
2226 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2227 {
2228 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2229
2230 if (!sdata->local->ops->sched_scan_stop)
2231 return -EOPNOTSUPP;
2232
2233 return ieee80211_request_sched_scan_stop(sdata);
2234 }
2235
2236 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2237 struct cfg80211_auth_request *req)
2238 {
2239 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2240 }
2241
2242 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2243 struct cfg80211_assoc_request *req)
2244 {
2245 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2246 }
2247
2248 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2249 struct cfg80211_deauth_request *req)
2250 {
2251 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2252 }
2253
2254 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2255 struct cfg80211_disassoc_request *req)
2256 {
2257 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2258 }
2259
2260 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2261 struct cfg80211_ibss_params *params)
2262 {
2263 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2264 }
2265
2266 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2267 {
2268 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2269 }
2270
2271 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2272 int rate[IEEE80211_NUM_BANDS])
2273 {
2274 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2275
2276 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2277 sizeof(int) * IEEE80211_NUM_BANDS);
2278
2279 return 0;
2280 }
2281
2282 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2283 {
2284 struct ieee80211_local *local = wiphy_priv(wiphy);
2285 int err;
2286
2287 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2288 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2289
2290 if (err)
2291 return err;
2292 }
2293
2294 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2295 err = drv_set_coverage_class(local, wiphy->coverage_class);
2296
2297 if (err)
2298 return err;
2299 }
2300
2301 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2302 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2303
2304 if (err)
2305 return err;
2306 }
2307
2308 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2309 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2310 return -EINVAL;
2311 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2312 }
2313 if (changed & WIPHY_PARAM_RETRY_LONG) {
2314 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2315 return -EINVAL;
2316 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2317 }
2318 if (changed &
2319 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2320 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2321
2322 return 0;
2323 }
2324
2325 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2326 struct wireless_dev *wdev,
2327 enum nl80211_tx_power_setting type, int mbm)
2328 {
2329 struct ieee80211_local *local = wiphy_priv(wiphy);
2330 struct ieee80211_sub_if_data *sdata;
2331
2332 if (wdev) {
2333 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2334
2335 switch (type) {
2336 case NL80211_TX_POWER_AUTOMATIC:
2337 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2338 break;
2339 case NL80211_TX_POWER_LIMITED:
2340 case NL80211_TX_POWER_FIXED:
2341 if (mbm < 0 || (mbm % 100))
2342 return -EOPNOTSUPP;
2343 sdata->user_power_level = MBM_TO_DBM(mbm);
2344 break;
2345 }
2346
2347 ieee80211_recalc_txpower(sdata);
2348
2349 return 0;
2350 }
2351
2352 switch (type) {
2353 case NL80211_TX_POWER_AUTOMATIC:
2354 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2355 break;
2356 case NL80211_TX_POWER_LIMITED:
2357 case NL80211_TX_POWER_FIXED:
2358 if (mbm < 0 || (mbm % 100))
2359 return -EOPNOTSUPP;
2360 local->user_power_level = MBM_TO_DBM(mbm);
2361 break;
2362 }
2363
2364 mutex_lock(&local->iflist_mtx);
2365 list_for_each_entry(sdata, &local->interfaces, list)
2366 sdata->user_power_level = local->user_power_level;
2367 list_for_each_entry(sdata, &local->interfaces, list)
2368 ieee80211_recalc_txpower(sdata);
2369 mutex_unlock(&local->iflist_mtx);
2370
2371 return 0;
2372 }
2373
2374 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2375 struct wireless_dev *wdev,
2376 int *dbm)
2377 {
2378 struct ieee80211_local *local = wiphy_priv(wiphy);
2379 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2380
2381 if (!local->use_chanctx)
2382 *dbm = local->hw.conf.power_level;
2383 else
2384 *dbm = sdata->vif.bss_conf.txpower;
2385
2386 return 0;
2387 }
2388
2389 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2390 const u8 *addr)
2391 {
2392 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2393
2394 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2395
2396 return 0;
2397 }
2398
2399 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2400 {
2401 struct ieee80211_local *local = wiphy_priv(wiphy);
2402
2403 drv_rfkill_poll(local);
2404 }
2405
2406 #ifdef CONFIG_NL80211_TESTMODE
2407 static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2408 struct wireless_dev *wdev,
2409 void *data, int len)
2410 {
2411 struct ieee80211_local *local = wiphy_priv(wiphy);
2412 struct ieee80211_vif *vif = NULL;
2413
2414 if (!local->ops->testmode_cmd)
2415 return -EOPNOTSUPP;
2416
2417 if (wdev) {
2418 struct ieee80211_sub_if_data *sdata;
2419
2420 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2421 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2422 vif = &sdata->vif;
2423 }
2424
2425 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2426 }
2427
2428 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2429 struct sk_buff *skb,
2430 struct netlink_callback *cb,
2431 void *data, int len)
2432 {
2433 struct ieee80211_local *local = wiphy_priv(wiphy);
2434
2435 if (!local->ops->testmode_dump)
2436 return -EOPNOTSUPP;
2437
2438 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2439 }
2440 #endif
2441
2442 int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2443 enum ieee80211_smps_mode smps_mode)
2444 {
2445 struct sta_info *sta;
2446 enum ieee80211_smps_mode old_req;
2447 int i;
2448
2449 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2450 return -EINVAL;
2451
2452 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2453 return 0;
2454
2455 old_req = sdata->u.ap.req_smps;
2456 sdata->u.ap.req_smps = smps_mode;
2457
2458 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2459 if (old_req == smps_mode ||
2460 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2461 return 0;
2462
2463 /* If no associated stations, there's no need to do anything */
2464 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2465 sdata->smps_mode = smps_mode;
2466 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2467 return 0;
2468 }
2469
2470 ht_dbg(sdata,
2471 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2472 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2473
2474 mutex_lock(&sdata->local->sta_mtx);
2475 for (i = 0; i < STA_HASH_SIZE; i++) {
2476 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2477 lockdep_is_held(&sdata->local->sta_mtx));
2478 sta;
2479 sta = rcu_dereference_protected(sta->hnext,
2480 lockdep_is_held(&sdata->local->sta_mtx))) {
2481 /*
2482 * Only stations associated to our AP and
2483 * associated VLANs
2484 */
2485 if (sta->sdata->bss != &sdata->u.ap)
2486 continue;
2487
2488 /* This station doesn't support MIMO - skip it */
2489 if (sta_info_tx_streams(sta) == 1)
2490 continue;
2491
2492 /*
2493 * Don't wake up a STA just to send the action frame
2494 * unless we are getting more restrictive.
2495 */
2496 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2497 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2498 smps_mode)) {
2499 ht_dbg(sdata,
2500 "Won't send SMPS to sleeping STA %pM\n",
2501 sta->sta.addr);
2502 continue;
2503 }
2504
2505 /*
2506 * If the STA is not authorized, wait until it gets
2507 * authorized and the action frame will be sent then.
2508 */
2509 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2510 continue;
2511
2512 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2513 ieee80211_send_smps_action(sdata, smps_mode,
2514 sta->sta.addr,
2515 sdata->vif.bss_conf.bssid);
2516 }
2517 }
2518 mutex_unlock(&sdata->local->sta_mtx);
2519
2520 sdata->smps_mode = smps_mode;
2521 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2522
2523 return 0;
2524 }
2525
2526 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2527 enum ieee80211_smps_mode smps_mode)
2528 {
2529 const u8 *ap;
2530 enum ieee80211_smps_mode old_req;
2531 int err;
2532
2533 lockdep_assert_held(&sdata->wdev.mtx);
2534
2535 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2536 return -EINVAL;
2537
2538 old_req = sdata->u.mgd.req_smps;
2539 sdata->u.mgd.req_smps = smps_mode;
2540
2541 if (old_req == smps_mode &&
2542 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2543 return 0;
2544
2545 /*
2546 * If not associated, or current association is not an HT
2547 * association, there's no need to do anything, just store
2548 * the new value until we associate.
2549 */
2550 if (!sdata->u.mgd.associated ||
2551 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2552 return 0;
2553
2554 ap = sdata->u.mgd.associated->bssid;
2555
2556 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2557 if (sdata->u.mgd.powersave)
2558 smps_mode = IEEE80211_SMPS_DYNAMIC;
2559 else
2560 smps_mode = IEEE80211_SMPS_OFF;
2561 }
2562
2563 /* send SM PS frame to AP */
2564 err = ieee80211_send_smps_action(sdata, smps_mode,
2565 ap, ap);
2566 if (err)
2567 sdata->u.mgd.req_smps = old_req;
2568
2569 return err;
2570 }
2571
2572 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2573 bool enabled, int timeout)
2574 {
2575 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2576 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2577
2578 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2579 return -EOPNOTSUPP;
2580
2581 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2582 return -EOPNOTSUPP;
2583
2584 if (enabled == sdata->u.mgd.powersave &&
2585 timeout == local->dynamic_ps_forced_timeout)
2586 return 0;
2587
2588 sdata->u.mgd.powersave = enabled;
2589 local->dynamic_ps_forced_timeout = timeout;
2590
2591 /* no change, but if automatic follow powersave */
2592 sdata_lock(sdata);
2593 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2594 sdata_unlock(sdata);
2595
2596 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2597 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2598
2599 ieee80211_recalc_ps(local, -1);
2600 ieee80211_recalc_ps_vif(sdata);
2601
2602 return 0;
2603 }
2604
2605 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2606 struct net_device *dev,
2607 s32 rssi_thold, u32 rssi_hyst)
2608 {
2609 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2610 struct ieee80211_vif *vif = &sdata->vif;
2611 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2612
2613 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2614 rssi_hyst == bss_conf->cqm_rssi_hyst)
2615 return 0;
2616
2617 bss_conf->cqm_rssi_thold = rssi_thold;
2618 bss_conf->cqm_rssi_hyst = rssi_hyst;
2619
2620 /* tell the driver upon association, unless already associated */
2621 if (sdata->u.mgd.associated &&
2622 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2623 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2624
2625 return 0;
2626 }
2627
2628 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2629 struct net_device *dev,
2630 const u8 *addr,
2631 const struct cfg80211_bitrate_mask *mask)
2632 {
2633 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2634 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2635 int i, ret;
2636
2637 if (!ieee80211_sdata_running(sdata))
2638 return -ENETDOWN;
2639
2640 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2641 ret = drv_set_bitrate_mask(local, sdata, mask);
2642 if (ret)
2643 return ret;
2644 }
2645
2646 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2647 struct ieee80211_supported_band *sband = wiphy->bands[i];
2648 int j;
2649
2650 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2651 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2652 sizeof(mask->control[i].ht_mcs));
2653
2654 sdata->rc_has_mcs_mask[i] = false;
2655 if (!sband)
2656 continue;
2657
2658 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2659 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2660 sdata->rc_has_mcs_mask[i] = true;
2661 break;
2662 }
2663 }
2664
2665 return 0;
2666 }
2667
2668 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2669 struct ieee80211_sub_if_data *sdata,
2670 struct ieee80211_channel *channel,
2671 unsigned int duration, u64 *cookie,
2672 struct sk_buff *txskb,
2673 enum ieee80211_roc_type type)
2674 {
2675 struct ieee80211_roc_work *roc, *tmp;
2676 bool queued = false;
2677 int ret;
2678
2679 lockdep_assert_held(&local->mtx);
2680
2681 if (local->use_chanctx && !local->ops->remain_on_channel)
2682 return -EOPNOTSUPP;
2683
2684 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2685 if (!roc)
2686 return -ENOMEM;
2687
2688 /*
2689 * If the duration is zero, then the driver
2690 * wouldn't actually do anything. Set it to
2691 * 10 for now.
2692 *
2693 * TODO: cancel the off-channel operation
2694 * when we get the SKB's TX status and
2695 * the wait time was zero before.
2696 */
2697 if (!duration)
2698 duration = 10;
2699
2700 roc->chan = channel;
2701 roc->duration = duration;
2702 roc->req_duration = duration;
2703 roc->frame = txskb;
2704 roc->type = type;
2705 roc->mgmt_tx_cookie = (unsigned long)txskb;
2706 roc->sdata = sdata;
2707 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2708 INIT_LIST_HEAD(&roc->dependents);
2709
2710 /*
2711 * cookie is either the roc cookie (for normal roc)
2712 * or the SKB (for mgmt TX)
2713 */
2714 if (!txskb) {
2715 /* local->mtx protects this */
2716 local->roc_cookie_counter++;
2717 roc->cookie = local->roc_cookie_counter;
2718 /* wow, you wrapped 64 bits ... more likely a bug */
2719 if (WARN_ON(roc->cookie == 0)) {
2720 roc->cookie = 1;
2721 local->roc_cookie_counter++;
2722 }
2723 *cookie = roc->cookie;
2724 } else {
2725 *cookie = (unsigned long)txskb;
2726 }
2727
2728 /* if there's one pending or we're scanning, queue this one */
2729 if (!list_empty(&local->roc_list) ||
2730 local->scanning || local->radar_detect_enabled)
2731 goto out_check_combine;
2732
2733 /* if not HW assist, just queue & schedule work */
2734 if (!local->ops->remain_on_channel) {
2735 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2736 goto out_queue;
2737 }
2738
2739 /* otherwise actually kick it off here (for error handling) */
2740
2741 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2742 if (ret) {
2743 kfree(roc);
2744 return ret;
2745 }
2746
2747 roc->started = true;
2748 goto out_queue;
2749
2750 out_check_combine:
2751 list_for_each_entry(tmp, &local->roc_list, list) {
2752 if (tmp->chan != channel || tmp->sdata != sdata)
2753 continue;
2754
2755 /*
2756 * Extend this ROC if possible:
2757 *
2758 * If it hasn't started yet, just increase the duration
2759 * and add the new one to the list of dependents.
2760 * If the type of the new ROC has higher priority, modify the
2761 * type of the previous one to match that of the new one.
2762 */
2763 if (!tmp->started) {
2764 list_add_tail(&roc->list, &tmp->dependents);
2765 tmp->duration = max(tmp->duration, roc->duration);
2766 tmp->type = max(tmp->type, roc->type);
2767 queued = true;
2768 break;
2769 }
2770
2771 /* If it has already started, it's more difficult ... */
2772 if (local->ops->remain_on_channel) {
2773 unsigned long j = jiffies;
2774
2775 /*
2776 * In the offloaded ROC case, if it hasn't begun, add
2777 * this new one to the dependent list to be handled
2778 * when the master one begins. If it has begun,
2779 * check that there's still a minimum time left and
2780 * if so, start this one, transmitting the frame, but
2781 * add it to the list directly after this one with
2782 * a reduced time so we'll ask the driver to execute
2783 * it right after finishing the previous one, in the
2784 * hope that it'll also be executed right afterwards,
2785 * effectively extending the old one.
2786 * If there's no minimum time left, just add it to the
2787 * normal list.
2788 * TODO: the ROC type is ignored here, assuming that it
2789 * is better to immediately use the current ROC.
2790 */
2791 if (!tmp->hw_begun) {
2792 list_add_tail(&roc->list, &tmp->dependents);
2793 queued = true;
2794 break;
2795 }
2796
2797 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2798 tmp->hw_start_time +
2799 msecs_to_jiffies(tmp->duration))) {
2800 int new_dur;
2801
2802 ieee80211_handle_roc_started(roc);
2803
2804 new_dur = roc->duration -
2805 jiffies_to_msecs(tmp->hw_start_time +
2806 msecs_to_jiffies(
2807 tmp->duration) -
2808 j);
2809
2810 if (new_dur > 0) {
2811 /* add right after tmp */
2812 list_add(&roc->list, &tmp->list);
2813 } else {
2814 list_add_tail(&roc->list,
2815 &tmp->dependents);
2816 }
2817 queued = true;
2818 }
2819 } else if (del_timer_sync(&tmp->work.timer)) {
2820 unsigned long new_end;
2821
2822 /*
2823 * In the software ROC case, cancel the timer, if
2824 * that fails then the finish work is already
2825 * queued/pending and thus we queue the new ROC
2826 * normally, if that succeeds then we can extend
2827 * the timer duration and TX the frame (if any.)
2828 */
2829
2830 list_add_tail(&roc->list, &tmp->dependents);
2831 queued = true;
2832
2833 new_end = jiffies + msecs_to_jiffies(roc->duration);
2834
2835 /* ok, it was started & we canceled timer */
2836 if (time_after(new_end, tmp->work.timer.expires))
2837 mod_timer(&tmp->work.timer, new_end);
2838 else
2839 add_timer(&tmp->work.timer);
2840
2841 ieee80211_handle_roc_started(roc);
2842 }
2843 break;
2844 }
2845
2846 out_queue:
2847 if (!queued)
2848 list_add_tail(&roc->list, &local->roc_list);
2849
2850 return 0;
2851 }
2852
2853 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2854 struct wireless_dev *wdev,
2855 struct ieee80211_channel *chan,
2856 unsigned int duration,
2857 u64 *cookie)
2858 {
2859 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2860 struct ieee80211_local *local = sdata->local;
2861 int ret;
2862
2863 mutex_lock(&local->mtx);
2864 ret = ieee80211_start_roc_work(local, sdata, chan,
2865 duration, cookie, NULL,
2866 IEEE80211_ROC_TYPE_NORMAL);
2867 mutex_unlock(&local->mtx);
2868
2869 return ret;
2870 }
2871
2872 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2873 u64 cookie, bool mgmt_tx)
2874 {
2875 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2876 int ret;
2877
2878 mutex_lock(&local->mtx);
2879 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2880 struct ieee80211_roc_work *dep, *tmp2;
2881
2882 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2883 if (!mgmt_tx && dep->cookie != cookie)
2884 continue;
2885 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2886 continue;
2887 /* found dependent item -- just remove it */
2888 list_del(&dep->list);
2889 mutex_unlock(&local->mtx);
2890
2891 ieee80211_roc_notify_destroy(dep, true);
2892 return 0;
2893 }
2894
2895 if (!mgmt_tx && roc->cookie != cookie)
2896 continue;
2897 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2898 continue;
2899
2900 found = roc;
2901 break;
2902 }
2903
2904 if (!found) {
2905 mutex_unlock(&local->mtx);
2906 return -ENOENT;
2907 }
2908
2909 /*
2910 * We found the item to cancel, so do that. Note that it
2911 * may have dependents, which we also cancel (and send
2912 * the expired signal for.) Not doing so would be quite
2913 * tricky here, but we may need to fix it later.
2914 */
2915
2916 if (local->ops->remain_on_channel) {
2917 if (found->started) {
2918 ret = drv_cancel_remain_on_channel(local);
2919 if (WARN_ON_ONCE(ret)) {
2920 mutex_unlock(&local->mtx);
2921 return ret;
2922 }
2923 }
2924
2925 list_del(&found->list);
2926
2927 if (found->started)
2928 ieee80211_start_next_roc(local);
2929 mutex_unlock(&local->mtx);
2930
2931 ieee80211_roc_notify_destroy(found, true);
2932 } else {
2933 /* work may be pending so use it all the time */
2934 found->abort = true;
2935 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2936
2937 mutex_unlock(&local->mtx);
2938
2939 /* work will clean up etc */
2940 flush_delayed_work(&found->work);
2941 WARN_ON(!found->to_be_freed);
2942 kfree(found);
2943 }
2944
2945 return 0;
2946 }
2947
2948 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2949 struct wireless_dev *wdev,
2950 u64 cookie)
2951 {
2952 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2953 struct ieee80211_local *local = sdata->local;
2954
2955 return ieee80211_cancel_roc(local, cookie, false);
2956 }
2957
2958 static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2959 struct net_device *dev,
2960 struct cfg80211_chan_def *chandef,
2961 u32 cac_time_ms)
2962 {
2963 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2964 struct ieee80211_local *local = sdata->local;
2965 int err;
2966
2967 mutex_lock(&local->mtx);
2968 if (!list_empty(&local->roc_list) || local->scanning) {
2969 err = -EBUSY;
2970 goto out_unlock;
2971 }
2972
2973 /* whatever, but channel contexts should not complain about that one */
2974 sdata->smps_mode = IEEE80211_SMPS_OFF;
2975 sdata->needed_rx_chains = local->rx_chains;
2976
2977 err = ieee80211_vif_use_channel(sdata, chandef,
2978 IEEE80211_CHANCTX_SHARED);
2979 if (err)
2980 goto out_unlock;
2981
2982 ieee80211_queue_delayed_work(&sdata->local->hw,
2983 &sdata->dfs_cac_timer_work,
2984 msecs_to_jiffies(cac_time_ms));
2985
2986 out_unlock:
2987 mutex_unlock(&local->mtx);
2988 return err;
2989 }
2990
2991 static struct cfg80211_beacon_data *
2992 cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2993 {
2994 struct cfg80211_beacon_data *new_beacon;
2995 u8 *pos;
2996 int len;
2997
2998 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2999 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
3000 beacon->probe_resp_len;
3001
3002 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
3003 if (!new_beacon)
3004 return NULL;
3005
3006 pos = (u8 *)(new_beacon + 1);
3007 if (beacon->head_len) {
3008 new_beacon->head_len = beacon->head_len;
3009 new_beacon->head = pos;
3010 memcpy(pos, beacon->head, beacon->head_len);
3011 pos += beacon->head_len;
3012 }
3013 if (beacon->tail_len) {
3014 new_beacon->tail_len = beacon->tail_len;
3015 new_beacon->tail = pos;
3016 memcpy(pos, beacon->tail, beacon->tail_len);
3017 pos += beacon->tail_len;
3018 }
3019 if (beacon->beacon_ies_len) {
3020 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
3021 new_beacon->beacon_ies = pos;
3022 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
3023 pos += beacon->beacon_ies_len;
3024 }
3025 if (beacon->proberesp_ies_len) {
3026 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
3027 new_beacon->proberesp_ies = pos;
3028 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
3029 pos += beacon->proberesp_ies_len;
3030 }
3031 if (beacon->assocresp_ies_len) {
3032 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
3033 new_beacon->assocresp_ies = pos;
3034 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
3035 pos += beacon->assocresp_ies_len;
3036 }
3037 if (beacon->probe_resp_len) {
3038 new_beacon->probe_resp_len = beacon->probe_resp_len;
3039 beacon->probe_resp = pos;
3040 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
3041 pos += beacon->probe_resp_len;
3042 }
3043
3044 return new_beacon;
3045 }
3046
3047 void ieee80211_csa_finish(struct ieee80211_vif *vif)
3048 {
3049 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
3050
3051 ieee80211_queue_work(&sdata->local->hw,
3052 &sdata->csa_finalize_work);
3053 }
3054 EXPORT_SYMBOL(ieee80211_csa_finish);
3055
3056 static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
3057 u32 *changed)
3058 {
3059 int err;
3060
3061 switch (sdata->vif.type) {
3062 case NL80211_IFTYPE_AP:
3063 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3064 kfree(sdata->u.ap.next_beacon);
3065 sdata->u.ap.next_beacon = NULL;
3066
3067 if (err < 0)
3068 return err;
3069 *changed |= err;
3070 break;
3071 case NL80211_IFTYPE_ADHOC:
3072 err = ieee80211_ibss_finish_csa(sdata);
3073 if (err < 0)
3074 return err;
3075 *changed |= err;
3076 break;
3077 #ifdef CONFIG_MAC80211_MESH
3078 case NL80211_IFTYPE_MESH_POINT:
3079 err = ieee80211_mesh_finish_csa(sdata);
3080 if (err < 0)
3081 return err;
3082 *changed |= err;
3083 break;
3084 #endif
3085 default:
3086 WARN_ON(1);
3087 return -EINVAL;
3088 }
3089
3090 return 0;
3091 }
3092
3093 static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3094 {
3095 struct ieee80211_local *local = sdata->local;
3096 u32 changed = 0;
3097 int err;
3098
3099 sdata_assert_lock(sdata);
3100 lockdep_assert_held(&local->mtx);
3101
3102 sdata->radar_required = sdata->csa_radar_required;
3103 err = ieee80211_vif_change_channel(sdata, &changed);
3104 if (err < 0)
3105 return err;
3106
3107 if (!local->use_chanctx) {
3108 local->_oper_chandef = sdata->csa_chandef;
3109 ieee80211_hw_config(local, 0);
3110 }
3111
3112 sdata->vif.csa_active = false;
3113
3114 err = ieee80211_set_after_csa_beacon(sdata, &changed);
3115 if (err)
3116 return err;
3117
3118 ieee80211_bss_info_change_notify(sdata, changed);
3119 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3120
3121 if (!ieee80211_csa_needs_block_tx(local))
3122 ieee80211_wake_queues_by_reason(&local->hw,
3123 IEEE80211_MAX_QUEUE_MAP,
3124 IEEE80211_QUEUE_STOP_REASON_CSA);
3125
3126 return 0;
3127 }
3128
3129 static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3130 {
3131 if (__ieee80211_csa_finalize(sdata)) {
3132 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3133 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3134 GFP_KERNEL);
3135 }
3136 }
3137
3138 void ieee80211_csa_finalize_work(struct work_struct *work)
3139 {
3140 struct ieee80211_sub_if_data *sdata =
3141 container_of(work, struct ieee80211_sub_if_data,
3142 csa_finalize_work);
3143 struct ieee80211_local *local = sdata->local;
3144
3145 sdata_lock(sdata);
3146 mutex_lock(&local->mtx);
3147
3148 /* AP might have been stopped while waiting for the lock. */
3149 if (!sdata->vif.csa_active)
3150 goto unlock;
3151
3152 if (!ieee80211_sdata_running(sdata))
3153 goto unlock;
3154
3155 ieee80211_csa_finalize(sdata);
3156
3157 unlock:
3158 mutex_unlock(&local->mtx);
3159 sdata_unlock(sdata);
3160 }
3161
3162 static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3163 struct cfg80211_csa_settings *params,
3164 u32 *changed)
3165 {
3166 int err;
3167
3168 switch (sdata->vif.type) {
3169 case NL80211_IFTYPE_AP:
3170 sdata->u.ap.next_beacon =
3171 cfg80211_beacon_dup(&params->beacon_after);
3172 if (!sdata->u.ap.next_beacon)
3173 return -ENOMEM;
3174
3175 /*
3176 * With a count of 0, we don't have to wait for any
3177 * TBTT before switching, so complete the CSA
3178 * immediately. In theory, with a count == 1 we
3179 * should delay the switch until just before the next
3180 * TBTT, but that would complicate things so we switch
3181 * immediately too. If we would delay the switch
3182 * until the next TBTT, we would have to set the probe
3183 * response here.
3184 *
3185 * TODO: A channel switch with count <= 1 without
3186 * sending a CSA action frame is kind of useless,
3187 * because the clients won't know we're changing
3188 * channels. The action frame must be implemented
3189 * either here or in the userspace.
3190 */
3191 if (params->count <= 1)
3192 break;
3193
3194 sdata->csa_counter_offset_beacon =
3195 params->counter_offset_beacon;
3196 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3197 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3198 if (err < 0) {
3199 kfree(sdata->u.ap.next_beacon);
3200 return err;
3201 }
3202 *changed |= err;
3203
3204 break;
3205 case NL80211_IFTYPE_ADHOC:
3206 if (!sdata->vif.bss_conf.ibss_joined)
3207 return -EINVAL;
3208
3209 if (params->chandef.width != sdata->u.ibss.chandef.width)
3210 return -EINVAL;
3211
3212 switch (params->chandef.width) {
3213 case NL80211_CHAN_WIDTH_40:
3214 if (cfg80211_get_chandef_type(&params->chandef) !=
3215 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3216 return -EINVAL;
3217 case NL80211_CHAN_WIDTH_5:
3218 case NL80211_CHAN_WIDTH_10:
3219 case NL80211_CHAN_WIDTH_20_NOHT:
3220 case NL80211_CHAN_WIDTH_20:
3221 break;
3222 default:
3223 return -EINVAL;
3224 }
3225
3226 /* changes into another band are not supported */
3227 if (sdata->u.ibss.chandef.chan->band !=
3228 params->chandef.chan->band)
3229 return -EINVAL;
3230
3231 /* see comments in the NL80211_IFTYPE_AP block */
3232 if (params->count > 1) {
3233 err = ieee80211_ibss_csa_beacon(sdata, params);
3234 if (err < 0)
3235 return err;
3236 *changed |= err;
3237 }
3238
3239 ieee80211_send_action_csa(sdata, params);
3240
3241 break;
3242 #ifdef CONFIG_MAC80211_MESH
3243 case NL80211_IFTYPE_MESH_POINT: {
3244 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
3245
3246 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3247 return -EINVAL;
3248
3249 /* changes into another band are not supported */
3250 if (sdata->vif.bss_conf.chandef.chan->band !=
3251 params->chandef.chan->band)
3252 return -EINVAL;
3253
3254 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
3255 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3256 if (!ifmsh->pre_value)
3257 ifmsh->pre_value = 1;
3258 else
3259 ifmsh->pre_value++;
3260 }
3261
3262 /* see comments in the NL80211_IFTYPE_AP block */
3263 if (params->count > 1) {
3264 err = ieee80211_mesh_csa_beacon(sdata, params);
3265 if (err < 0) {
3266 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3267 return err;
3268 }
3269 *changed |= err;
3270 }
3271
3272 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3273 ieee80211_send_action_csa(sdata, params);
3274
3275 break;
3276 }
3277 #endif
3278 default:
3279 return -EOPNOTSUPP;
3280 }
3281
3282 return 0;
3283 }
3284
3285 int __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3286 struct cfg80211_csa_settings *params)
3287 {
3288 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3289 struct ieee80211_local *local = sdata->local;
3290 struct ieee80211_chanctx_conf *conf;
3291 struct ieee80211_chanctx *chanctx;
3292 int err, num_chanctx, changed = 0;
3293
3294 sdata_assert_lock(sdata);
3295 lockdep_assert_held(&local->mtx);
3296
3297 if (!list_empty(&local->roc_list) || local->scanning)
3298 return -EBUSY;
3299
3300 if (sdata->wdev.cac_started)
3301 return -EBUSY;
3302
3303 if (cfg80211_chandef_identical(&params->chandef,
3304 &sdata->vif.bss_conf.chandef))
3305 return -EINVAL;
3306
3307 mutex_lock(&local->chanctx_mtx);
3308 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3309 lockdep_is_held(&local->chanctx_mtx));
3310 if (!conf) {
3311 mutex_unlock(&local->chanctx_mtx);
3312 return -EBUSY;
3313 }
3314
3315 /* don't handle for multi-VIF cases */
3316 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
3317 if (ieee80211_chanctx_refcount(local, chanctx) > 1) {
3318 mutex_unlock(&local->chanctx_mtx);
3319 return -EBUSY;
3320 }
3321 num_chanctx = 0;
3322 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3323 num_chanctx++;
3324 mutex_unlock(&local->chanctx_mtx);
3325
3326 if (num_chanctx > 1)
3327 return -EBUSY;
3328
3329 /* don't allow another channel switch if one is already active. */
3330 if (sdata->vif.csa_active)
3331 return -EBUSY;
3332
3333 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3334 if (err)
3335 return err;
3336
3337 sdata->csa_radar_required = params->radar_required;
3338 sdata->csa_chandef = params->chandef;
3339 sdata->csa_block_tx = params->block_tx;
3340 sdata->vif.csa_active = true;
3341
3342 if (sdata->csa_block_tx)
3343 ieee80211_stop_queues_by_reason(&local->hw,
3344 IEEE80211_MAX_QUEUE_MAP,
3345 IEEE80211_QUEUE_STOP_REASON_CSA);
3346
3347 if (changed) {
3348 ieee80211_bss_info_change_notify(sdata, changed);
3349 drv_channel_switch_beacon(sdata, &params->chandef);
3350 } else {
3351 /* if the beacon didn't change, we can finalize immediately */
3352 ieee80211_csa_finalize(sdata);
3353 }
3354
3355 return 0;
3356 }
3357
3358 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3359 struct cfg80211_csa_settings *params)
3360 {
3361 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3362 struct ieee80211_local *local = sdata->local;
3363 int err;
3364
3365 mutex_lock(&local->mtx);
3366 err = __ieee80211_channel_switch(wiphy, dev, params);
3367 mutex_unlock(&local->mtx);
3368
3369 return err;
3370 }
3371
3372 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3373 struct cfg80211_mgmt_tx_params *params,
3374 u64 *cookie)
3375 {
3376 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3377 struct ieee80211_local *local = sdata->local;
3378 struct sk_buff *skb;
3379 struct sta_info *sta;
3380 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3381 bool need_offchan = false;
3382 u32 flags;
3383 int ret;
3384
3385 if (params->dont_wait_for_ack)
3386 flags = IEEE80211_TX_CTL_NO_ACK;
3387 else
3388 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3389 IEEE80211_TX_CTL_REQ_TX_STATUS;
3390
3391 if (params->no_cck)
3392 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3393
3394 switch (sdata->vif.type) {
3395 case NL80211_IFTYPE_ADHOC:
3396 if (!sdata->vif.bss_conf.ibss_joined)
3397 need_offchan = true;
3398 /* fall through */
3399 #ifdef CONFIG_MAC80211_MESH
3400 case NL80211_IFTYPE_MESH_POINT:
3401 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3402 !sdata->u.mesh.mesh_id_len)
3403 need_offchan = true;
3404 /* fall through */
3405 #endif
3406 case NL80211_IFTYPE_AP:
3407 case NL80211_IFTYPE_AP_VLAN:
3408 case NL80211_IFTYPE_P2P_GO:
3409 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3410 !ieee80211_vif_is_mesh(&sdata->vif) &&
3411 !rcu_access_pointer(sdata->bss->beacon))
3412 need_offchan = true;
3413 if (!ieee80211_is_action(mgmt->frame_control) ||
3414 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3415 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3416 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3417 break;
3418 rcu_read_lock();
3419 sta = sta_info_get(sdata, mgmt->da);
3420 rcu_read_unlock();
3421 if (!sta)
3422 return -ENOLINK;
3423 break;
3424 case NL80211_IFTYPE_STATION:
3425 case NL80211_IFTYPE_P2P_CLIENT:
3426 if (!sdata->u.mgd.associated)
3427 need_offchan = true;
3428 break;
3429 case NL80211_IFTYPE_P2P_DEVICE:
3430 need_offchan = true;
3431 break;
3432 default:
3433 return -EOPNOTSUPP;
3434 }
3435
3436 /* configurations requiring offchan cannot work if no channel has been
3437 * specified
3438 */
3439 if (need_offchan && !params->chan)
3440 return -EINVAL;
3441
3442 mutex_lock(&local->mtx);
3443
3444 /* Check if the operating channel is the requested channel */
3445 if (!need_offchan) {
3446 struct ieee80211_chanctx_conf *chanctx_conf;
3447
3448 rcu_read_lock();
3449 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3450
3451 if (chanctx_conf) {
3452 need_offchan = params->chan &&
3453 (params->chan !=
3454 chanctx_conf->def.chan);
3455 } else if (!params->chan) {
3456 ret = -EINVAL;
3457 rcu_read_unlock();
3458 goto out_unlock;
3459 } else {
3460 need_offchan = true;
3461 }
3462 rcu_read_unlock();
3463 }
3464
3465 if (need_offchan && !params->offchan) {
3466 ret = -EBUSY;
3467 goto out_unlock;
3468 }
3469
3470 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3471 if (!skb) {
3472 ret = -ENOMEM;
3473 goto out_unlock;
3474 }
3475 skb_reserve(skb, local->hw.extra_tx_headroom);
3476
3477 memcpy(skb_put(skb, params->len), params->buf, params->len);
3478
3479 IEEE80211_SKB_CB(skb)->flags = flags;
3480
3481 skb->dev = sdata->dev;
3482
3483 if (!need_offchan) {
3484 *cookie = (unsigned long) skb;
3485 ieee80211_tx_skb(sdata, skb);
3486 ret = 0;
3487 goto out_unlock;
3488 }
3489
3490 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3491 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3492 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3493 IEEE80211_SKB_CB(skb)->hw_queue =
3494 local->hw.offchannel_tx_hw_queue;
3495
3496 /* This will handle all kinds of coalescing and immediate TX */
3497 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3498 params->wait, cookie, skb,
3499 IEEE80211_ROC_TYPE_MGMT_TX);
3500 if (ret)
3501 kfree_skb(skb);
3502 out_unlock:
3503 mutex_unlock(&local->mtx);
3504 return ret;
3505 }
3506
3507 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3508 struct wireless_dev *wdev,
3509 u64 cookie)
3510 {
3511 struct ieee80211_local *local = wiphy_priv(wiphy);
3512
3513 return ieee80211_cancel_roc(local, cookie, true);
3514 }
3515
3516 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3517 struct wireless_dev *wdev,
3518 u16 frame_type, bool reg)
3519 {
3520 struct ieee80211_local *local = wiphy_priv(wiphy);
3521
3522 switch (frame_type) {
3523 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3524 if (reg)
3525 local->probe_req_reg++;
3526 else
3527 local->probe_req_reg--;
3528
3529 if (!local->open_count)
3530 break;
3531
3532 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3533 break;
3534 default:
3535 break;
3536 }
3537 }
3538
3539 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3540 {
3541 struct ieee80211_local *local = wiphy_priv(wiphy);
3542
3543 if (local->started)
3544 return -EOPNOTSUPP;
3545
3546 return drv_set_antenna(local, tx_ant, rx_ant);
3547 }
3548
3549 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3550 {
3551 struct ieee80211_local *local = wiphy_priv(wiphy);
3552
3553 return drv_get_antenna(local, tx_ant, rx_ant);
3554 }
3555
3556 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3557 {
3558 struct ieee80211_local *local = wiphy_priv(wiphy);
3559
3560 return drv_set_ringparam(local, tx, rx);
3561 }
3562
3563 static void ieee80211_get_ringparam(struct wiphy *wiphy,
3564 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3565 {
3566 struct ieee80211_local *local = wiphy_priv(wiphy);
3567
3568 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3569 }
3570
3571 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3572 struct net_device *dev,
3573 struct cfg80211_gtk_rekey_data *data)
3574 {
3575 struct ieee80211_local *local = wiphy_priv(wiphy);
3576 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3577
3578 if (!local->ops->set_rekey_data)
3579 return -EOPNOTSUPP;
3580
3581 drv_set_rekey_data(local, sdata, data);
3582
3583 return 0;
3584 }
3585
3586 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3587 const u8 *peer, u64 *cookie)
3588 {
3589 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3590 struct ieee80211_local *local = sdata->local;
3591 struct ieee80211_qos_hdr *nullfunc;
3592 struct sk_buff *skb;
3593 int size = sizeof(*nullfunc);
3594 __le16 fc;
3595 bool qos;
3596 struct ieee80211_tx_info *info;
3597 struct sta_info *sta;
3598 struct ieee80211_chanctx_conf *chanctx_conf;
3599 enum ieee80211_band band;
3600
3601 rcu_read_lock();
3602 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3603 if (WARN_ON(!chanctx_conf)) {
3604 rcu_read_unlock();
3605 return -EINVAL;
3606 }
3607 band = chanctx_conf->def.chan->band;
3608 sta = sta_info_get_bss(sdata, peer);
3609 if (sta) {
3610 qos = test_sta_flag(sta, WLAN_STA_WME);
3611 } else {
3612 rcu_read_unlock();
3613 return -ENOLINK;
3614 }
3615
3616 if (qos) {
3617 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3618 IEEE80211_STYPE_QOS_NULLFUNC |
3619 IEEE80211_FCTL_FROMDS);
3620 } else {
3621 size -= 2;
3622 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3623 IEEE80211_STYPE_NULLFUNC |
3624 IEEE80211_FCTL_FROMDS);
3625 }
3626
3627 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3628 if (!skb) {
3629 rcu_read_unlock();
3630 return -ENOMEM;
3631 }
3632
3633 skb->dev = dev;
3634
3635 skb_reserve(skb, local->hw.extra_tx_headroom);
3636
3637 nullfunc = (void *) skb_put(skb, size);
3638 nullfunc->frame_control = fc;
3639 nullfunc->duration_id = 0;
3640 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3641 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3642 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3643 nullfunc->seq_ctrl = 0;
3644
3645 info = IEEE80211_SKB_CB(skb);
3646
3647 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3648 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3649
3650 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3651 skb->priority = 7;
3652 if (qos)
3653 nullfunc->qos_ctrl = cpu_to_le16(7);
3654
3655 local_bh_disable();
3656 ieee80211_xmit(sdata, skb, band);
3657 local_bh_enable();
3658 rcu_read_unlock();
3659
3660 *cookie = (unsigned long) skb;
3661 return 0;
3662 }
3663
3664 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3665 struct wireless_dev *wdev,
3666 struct cfg80211_chan_def *chandef)
3667 {
3668 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3669 struct ieee80211_local *local = wiphy_priv(wiphy);
3670 struct ieee80211_chanctx_conf *chanctx_conf;
3671 int ret = -ENODATA;
3672
3673 rcu_read_lock();
3674 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3675 if (chanctx_conf) {
3676 *chandef = chanctx_conf->def;
3677 ret = 0;
3678 } else if (local->open_count > 0 &&
3679 local->open_count == local->monitors &&
3680 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3681 if (local->use_chanctx)
3682 *chandef = local->monitor_chandef;
3683 else
3684 *chandef = local->_oper_chandef;
3685 ret = 0;
3686 }
3687 rcu_read_unlock();
3688
3689 return ret;
3690 }
3691
3692 #ifdef CONFIG_PM
3693 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3694 {
3695 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3696 }
3697 #endif
3698
3699 static int ieee80211_set_qos_map(struct wiphy *wiphy,
3700 struct net_device *dev,
3701 struct cfg80211_qos_map *qos_map)
3702 {
3703 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3704 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3705
3706 if (qos_map) {
3707 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3708 if (!new_qos_map)
3709 return -ENOMEM;
3710 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3711 } else {
3712 /* A NULL qos_map was passed to disable QoS mapping */
3713 new_qos_map = NULL;
3714 }
3715
3716 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
3717 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3718 if (old_qos_map)
3719 kfree_rcu(old_qos_map, rcu_head);
3720
3721 return 0;
3722 }
3723
3724 static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3725 struct net_device *dev,
3726 struct cfg80211_chan_def *chandef)
3727 {
3728 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3729 int ret;
3730 u32 changed = 0;
3731
3732 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3733 if (ret == 0)
3734 ieee80211_bss_info_change_notify(sdata, changed);
3735
3736 return ret;
3737 }
3738
3739 const struct cfg80211_ops mac80211_config_ops = {
3740 .add_virtual_intf = ieee80211_add_iface,
3741 .del_virtual_intf = ieee80211_del_iface,
3742 .change_virtual_intf = ieee80211_change_iface,
3743 .start_p2p_device = ieee80211_start_p2p_device,
3744 .stop_p2p_device = ieee80211_stop_p2p_device,
3745 .add_key = ieee80211_add_key,
3746 .del_key = ieee80211_del_key,
3747 .get_key = ieee80211_get_key,
3748 .set_default_key = ieee80211_config_default_key,
3749 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3750 .start_ap = ieee80211_start_ap,
3751 .change_beacon = ieee80211_change_beacon,
3752 .stop_ap = ieee80211_stop_ap,
3753 .add_station = ieee80211_add_station,
3754 .del_station = ieee80211_del_station,
3755 .change_station = ieee80211_change_station,
3756 .get_station = ieee80211_get_station,
3757 .dump_station = ieee80211_dump_station,
3758 .dump_survey = ieee80211_dump_survey,
3759 #ifdef CONFIG_MAC80211_MESH
3760 .add_mpath = ieee80211_add_mpath,
3761 .del_mpath = ieee80211_del_mpath,
3762 .change_mpath = ieee80211_change_mpath,
3763 .get_mpath = ieee80211_get_mpath,
3764 .dump_mpath = ieee80211_dump_mpath,
3765 .update_mesh_config = ieee80211_update_mesh_config,
3766 .get_mesh_config = ieee80211_get_mesh_config,
3767 .join_mesh = ieee80211_join_mesh,
3768 .leave_mesh = ieee80211_leave_mesh,
3769 #endif
3770 .change_bss = ieee80211_change_bss,
3771 .set_txq_params = ieee80211_set_txq_params,
3772 .set_monitor_channel = ieee80211_set_monitor_channel,
3773 .suspend = ieee80211_suspend,
3774 .resume = ieee80211_resume,
3775 .scan = ieee80211_scan,
3776 .sched_scan_start = ieee80211_sched_scan_start,
3777 .sched_scan_stop = ieee80211_sched_scan_stop,
3778 .auth = ieee80211_auth,
3779 .assoc = ieee80211_assoc,
3780 .deauth = ieee80211_deauth,
3781 .disassoc = ieee80211_disassoc,
3782 .join_ibss = ieee80211_join_ibss,
3783 .leave_ibss = ieee80211_leave_ibss,
3784 .set_mcast_rate = ieee80211_set_mcast_rate,
3785 .set_wiphy_params = ieee80211_set_wiphy_params,
3786 .set_tx_power = ieee80211_set_tx_power,
3787 .get_tx_power = ieee80211_get_tx_power,
3788 .set_wds_peer = ieee80211_set_wds_peer,
3789 .rfkill_poll = ieee80211_rfkill_poll,
3790 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3791 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3792 .set_power_mgmt = ieee80211_set_power_mgmt,
3793 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3794 .remain_on_channel = ieee80211_remain_on_channel,
3795 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3796 .mgmt_tx = ieee80211_mgmt_tx,
3797 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3798 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3799 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3800 .set_antenna = ieee80211_set_antenna,
3801 .get_antenna = ieee80211_get_antenna,
3802 .set_ringparam = ieee80211_set_ringparam,
3803 .get_ringparam = ieee80211_get_ringparam,
3804 .set_rekey_data = ieee80211_set_rekey_data,
3805 .tdls_oper = ieee80211_tdls_oper,
3806 .tdls_mgmt = ieee80211_tdls_mgmt,
3807 .probe_client = ieee80211_probe_client,
3808 .set_noack_map = ieee80211_set_noack_map,
3809 #ifdef CONFIG_PM
3810 .set_wakeup = ieee80211_set_wakeup,
3811 #endif
3812 .get_et_sset_count = ieee80211_get_et_sset_count,
3813 .get_et_stats = ieee80211_get_et_stats,
3814 .get_et_strings = ieee80211_get_et_strings,
3815 .get_channel = ieee80211_cfg_get_channel,
3816 .start_radar_detection = ieee80211_start_radar_detection,
3817 .channel_switch = ieee80211_channel_switch,
3818 .set_qos_map = ieee80211_set_qos_map,
3819 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
3820 };
Linux kernel - Deliverables
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