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mac80211: Add support for QoS mapping
[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
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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
23static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
28{
29 struct ieee80211_local *local = wiphy_priv(wiphy);
30 struct wireless_dev *wdev;
31 struct ieee80211_sub_if_data *sdata;
32 int err;
33
34 err = ieee80211_if_add(local, name, &wdev, type, params);
35 if (err)
36 return ERR_PTR(err);
37
38 if (type == NL80211_IFTYPE_MONITOR && flags) {
39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
40 sdata->u.mntr_flags = *flags;
41 }
42
43 return wdev;
44}
45
46static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
47{
48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
49
50 return 0;
51}
52
53static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
57{
58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
59 int ret;
60
61 ret = ieee80211_if_change_type(sdata, type);
62 if (ret)
63 return ret;
64
65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
74
75 if (ieee80211_sdata_running(sdata)) {
76 u32 mask = MONITOR_FLAG_COOK_FRAMES |
77 MONITOR_FLAG_ACTIVE;
78
79 /*
80 * 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
109static int ieee80211_start_p2p_device(struct wiphy *wiphy,
110 struct wireless_dev *wdev)
111{
112 return ieee80211_do_open(wdev, true);
113}
114
115static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
116 struct wireless_dev *wdev)
117{
118 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
119}
120
121static int ieee80211_set_noack_map(struct wiphy *wiphy,
122 struct net_device *dev,
123 u16 noack_map)
124{
125 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
126
127 sdata->noack_map = noack_map;
128 return 0;
129}
130
131static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
132 u8 key_idx, bool pairwise, const u8 *mac_addr,
133 struct key_params *params)
134{
135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
136 struct ieee80211_local *local = sdata->local;
137 struct sta_info *sta = NULL;
138 const struct ieee80211_cipher_scheme *cs = NULL;
139 struct ieee80211_key *key;
140 int err;
141
142 if (!ieee80211_sdata_running(sdata))
143 return -ENETDOWN;
144
145 /* reject WEP and TKIP keys if WEP failed to initialize */
146 switch (params->cipher) {
147 case WLAN_CIPHER_SUITE_WEP40:
148 case WLAN_CIPHER_SUITE_TKIP:
149 case WLAN_CIPHER_SUITE_WEP104:
150 if (IS_ERR(local->wep_tx_tfm))
151 return -EINVAL;
152 break;
153 case WLAN_CIPHER_SUITE_CCMP:
154 case WLAN_CIPHER_SUITE_AES_CMAC:
155 case WLAN_CIPHER_SUITE_GCMP:
156 break;
157 default:
158 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
159 break;
160 }
161
162 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
163 params->key, params->seq_len, params->seq,
164 cs);
165 if (IS_ERR(key))
166 return PTR_ERR(key);
167
168 if (pairwise)
169 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
170
171 mutex_lock(&local->sta_mtx);
172
173 if (mac_addr) {
174 if (ieee80211_vif_is_mesh(&sdata->vif))
175 sta = sta_info_get(sdata, mac_addr);
176 else
177 sta = sta_info_get_bss(sdata, mac_addr);
178 /*
179 * The ASSOC test makes sure the driver is ready to
180 * receive the key. When wpa_supplicant has roamed
181 * using FT, it attempts to set the key before
182 * association has completed, this rejects that attempt
183 * so it will set the key again after assocation.
184 *
185 * TODO: accept the key if we have a station entry and
186 * add it to the device after the station.
187 */
188 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
189 ieee80211_key_free_unused(key);
190 err = -ENOENT;
191 goto out_unlock;
192 }
193 }
194
195 switch (sdata->vif.type) {
196 case NL80211_IFTYPE_STATION:
197 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
198 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
199 break;
200 case NL80211_IFTYPE_AP:
201 case NL80211_IFTYPE_AP_VLAN:
202 /* Keys without a station are used for TX only */
203 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
204 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
205 break;
206 case NL80211_IFTYPE_ADHOC:
207 /* no MFP (yet) */
208 break;
209 case NL80211_IFTYPE_MESH_POINT:
210#ifdef CONFIG_MAC80211_MESH
211 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
212 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
213 break;
214#endif
215 case NL80211_IFTYPE_WDS:
216 case NL80211_IFTYPE_MONITOR:
217 case NL80211_IFTYPE_P2P_DEVICE:
218 case NL80211_IFTYPE_UNSPECIFIED:
219 case NUM_NL80211_IFTYPES:
220 case NL80211_IFTYPE_P2P_CLIENT:
221 case NL80211_IFTYPE_P2P_GO:
222 /* shouldn't happen */
223 WARN_ON_ONCE(1);
224 break;
225 }
226
227 if (sta)
228 sta->cipher_scheme = cs;
229
230 err = ieee80211_key_link(key, sdata, sta);
231
232 out_unlock:
233 mutex_unlock(&local->sta_mtx);
234
235 return err;
236}
237
238static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
239 u8 key_idx, bool pairwise, const u8 *mac_addr)
240{
241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
242 struct ieee80211_local *local = sdata->local;
243 struct sta_info *sta;
244 struct ieee80211_key *key = NULL;
245 int ret;
246
247 mutex_lock(&local->sta_mtx);
248 mutex_lock(&local->key_mtx);
249
250 if (mac_addr) {
251 ret = -ENOENT;
252
253 sta = sta_info_get_bss(sdata, mac_addr);
254 if (!sta)
255 goto out_unlock;
256
257 if (pairwise)
258 key = key_mtx_dereference(local, sta->ptk[key_idx]);
259 else
260 key = key_mtx_dereference(local, sta->gtk[key_idx]);
261 } else
262 key = key_mtx_dereference(local, sdata->keys[key_idx]);
263
264 if (!key) {
265 ret = -ENOENT;
266 goto out_unlock;
267 }
268
269 ieee80211_key_free(key, true);
270
271 ret = 0;
272 out_unlock:
273 mutex_unlock(&local->key_mtx);
274 mutex_unlock(&local->sta_mtx);
275
276 return ret;
277}
278
279static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
280 u8 key_idx, bool pairwise, const u8 *mac_addr,
281 void *cookie,
282 void (*callback)(void *cookie,
283 struct key_params *params))
284{
285 struct ieee80211_sub_if_data *sdata;
286 struct sta_info *sta = NULL;
287 u8 seq[6] = {0};
288 struct key_params params;
289 struct ieee80211_key *key = NULL;
290 u64 pn64;
291 u32 iv32;
292 u16 iv16;
293 int err = -ENOENT;
294
295 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
296
297 rcu_read_lock();
298
299 if (mac_addr) {
300 sta = sta_info_get_bss(sdata, mac_addr);
301 if (!sta)
302 goto out;
303
304 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
305 key = rcu_dereference(sta->ptk[key_idx]);
306 else if (!pairwise &&
307 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
308 key = rcu_dereference(sta->gtk[key_idx]);
309 } else
310 key = rcu_dereference(sdata->keys[key_idx]);
311
312 if (!key)
313 goto out;
314
315 memset(&params, 0, sizeof(params));
316
317 params.cipher = key->conf.cipher;
318
319 switch (key->conf.cipher) {
320 case WLAN_CIPHER_SUITE_TKIP:
321 iv32 = key->u.tkip.tx.iv32;
322 iv16 = key->u.tkip.tx.iv16;
323
324 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
325 drv_get_tkip_seq(sdata->local,
326 key->conf.hw_key_idx,
327 &iv32, &iv16);
328
329 seq[0] = iv16 & 0xff;
330 seq[1] = (iv16 >> 8) & 0xff;
331 seq[2] = iv32 & 0xff;
332 seq[3] = (iv32 >> 8) & 0xff;
333 seq[4] = (iv32 >> 16) & 0xff;
334 seq[5] = (iv32 >> 24) & 0xff;
335 params.seq = seq;
336 params.seq_len = 6;
337 break;
338 case WLAN_CIPHER_SUITE_CCMP:
339 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
340 seq[0] = pn64;
341 seq[1] = pn64 >> 8;
342 seq[2] = pn64 >> 16;
343 seq[3] = pn64 >> 24;
344 seq[4] = pn64 >> 32;
345 seq[5] = pn64 >> 40;
346 params.seq = seq;
347 params.seq_len = 6;
348 break;
349 case WLAN_CIPHER_SUITE_AES_CMAC:
350 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
351 seq[0] = pn64;
352 seq[1] = pn64 >> 8;
353 seq[2] = pn64 >> 16;
354 seq[3] = pn64 >> 24;
355 seq[4] = pn64 >> 32;
356 seq[5] = pn64 >> 40;
357 params.seq = seq;
358 params.seq_len = 6;
359 break;
360 }
361
362 params.key = key->conf.key;
363 params.key_len = key->conf.keylen;
364
365 callback(cookie, &params);
366 err = 0;
367
368 out:
369 rcu_read_unlock();
370 return err;
371}
372
373static int ieee80211_config_default_key(struct wiphy *wiphy,
374 struct net_device *dev,
375 u8 key_idx, bool uni,
376 bool multi)
377{
378 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
379
380 ieee80211_set_default_key(sdata, key_idx, uni, multi);
381
382 return 0;
383}
384
385static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
386 struct net_device *dev,
387 u8 key_idx)
388{
389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
390
391 ieee80211_set_default_mgmt_key(sdata, key_idx);
392
393 return 0;
394}
395
396void sta_set_rate_info_tx(struct sta_info *sta,
397 const struct ieee80211_tx_rate *rate,
398 struct rate_info *rinfo)
399{
400 rinfo->flags = 0;
401 if (rate->flags & IEEE80211_TX_RC_MCS) {
402 rinfo->flags |= RATE_INFO_FLAGS_MCS;
403 rinfo->mcs = rate->idx;
404 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
405 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
406 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
407 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
408 } else {
409 struct ieee80211_supported_band *sband;
410 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
411 u16 brate;
412
413 sband = sta->local->hw.wiphy->bands[
414 ieee80211_get_sdata_band(sta->sdata)];
415 brate = sband->bitrates[rate->idx].bitrate;
416 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
417 }
418 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
419 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
420 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
421 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
422 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
423 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
424 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
425 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
426}
427
428void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
429{
430 rinfo->flags = 0;
431
432 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
433 rinfo->flags |= RATE_INFO_FLAGS_MCS;
434 rinfo->mcs = sta->last_rx_rate_idx;
435 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
436 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
437 rinfo->nss = sta->last_rx_rate_vht_nss;
438 rinfo->mcs = sta->last_rx_rate_idx;
439 } else {
440 struct ieee80211_supported_band *sband;
441 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
442 u16 brate;
443
444 sband = sta->local->hw.wiphy->bands[
445 ieee80211_get_sdata_band(sta->sdata)];
446 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
447 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
448 }
449
450 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
451 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
452 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
453 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
454 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
455 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
456 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
457 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
458 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
459 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
460}
461
462static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
463{
464 struct ieee80211_sub_if_data *sdata = sta->sdata;
465 struct ieee80211_local *local = sdata->local;
466 struct timespec uptime;
467 u64 packets = 0;
468 int i, ac;
469
470 sinfo->generation = sdata->local->sta_generation;
471
472 sinfo->filled = STATION_INFO_INACTIVE_TIME |
473 STATION_INFO_RX_BYTES64 |
474 STATION_INFO_TX_BYTES64 |
475 STATION_INFO_RX_PACKETS |
476 STATION_INFO_TX_PACKETS |
477 STATION_INFO_TX_RETRIES |
478 STATION_INFO_TX_FAILED |
479 STATION_INFO_TX_BITRATE |
480 STATION_INFO_RX_BITRATE |
481 STATION_INFO_RX_DROP_MISC |
482 STATION_INFO_BSS_PARAM |
483 STATION_INFO_CONNECTED_TIME |
484 STATION_INFO_STA_FLAGS |
485 STATION_INFO_BEACON_LOSS_COUNT;
486
487 do_posix_clock_monotonic_gettime(&uptime);
488 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
489
490 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
491 sinfo->tx_bytes = 0;
492 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
493 sinfo->tx_bytes += sta->tx_bytes[ac];
494 packets += sta->tx_packets[ac];
495 }
496 sinfo->tx_packets = packets;
497 sinfo->rx_bytes = sta->rx_bytes;
498 sinfo->rx_packets = sta->rx_packets;
499 sinfo->tx_retries = sta->tx_retry_count;
500 sinfo->tx_failed = sta->tx_retry_failed;
501 sinfo->rx_dropped_misc = sta->rx_dropped;
502 sinfo->beacon_loss_count = sta->beacon_loss_count;
503
504 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
505 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
506 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
507 if (!local->ops->get_rssi ||
508 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
509 sinfo->signal = (s8)sta->last_signal;
510 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
511 }
512 if (sta->chains) {
513 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
514 STATION_INFO_CHAIN_SIGNAL_AVG;
515
516 sinfo->chains = sta->chains;
517 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
518 sinfo->chain_signal[i] = sta->chain_signal_last[i];
519 sinfo->chain_signal_avg[i] =
520 (s8) -ewma_read(&sta->chain_signal_avg[i]);
521 }
522 }
523
524 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
525 sta_set_rate_info_rx(sta, &sinfo->rxrate);
526
527 if (ieee80211_vif_is_mesh(&sdata->vif)) {
528#ifdef CONFIG_MAC80211_MESH
529 sinfo->filled |= STATION_INFO_LLID |
530 STATION_INFO_PLID |
531 STATION_INFO_PLINK_STATE |
532 STATION_INFO_LOCAL_PM |
533 STATION_INFO_PEER_PM |
534 STATION_INFO_NONPEER_PM;
535
536 sinfo->llid = sta->llid;
537 sinfo->plid = sta->plid;
538 sinfo->plink_state = sta->plink_state;
539 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
540 sinfo->filled |= STATION_INFO_T_OFFSET;
541 sinfo->t_offset = sta->t_offset;
542 }
543 sinfo->local_pm = sta->local_pm;
544 sinfo->peer_pm = sta->peer_pm;
545 sinfo->nonpeer_pm = sta->nonpeer_pm;
546#endif
547 }
548
549 sinfo->bss_param.flags = 0;
550 if (sdata->vif.bss_conf.use_cts_prot)
551 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
552 if (sdata->vif.bss_conf.use_short_preamble)
553 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
554 if (sdata->vif.bss_conf.use_short_slot)
555 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
556 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
557 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
558
559 sinfo->sta_flags.set = 0;
560 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
561 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
562 BIT(NL80211_STA_FLAG_WME) |
563 BIT(NL80211_STA_FLAG_MFP) |
564 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
565 BIT(NL80211_STA_FLAG_ASSOCIATED) |
566 BIT(NL80211_STA_FLAG_TDLS_PEER);
567 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
568 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
569 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
570 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
571 if (test_sta_flag(sta, WLAN_STA_WME))
572 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
573 if (test_sta_flag(sta, WLAN_STA_MFP))
574 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
575 if (test_sta_flag(sta, WLAN_STA_AUTH))
576 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
577 if (test_sta_flag(sta, WLAN_STA_ASSOC))
578 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
579 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
580 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
581}
582
583static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
584 "rx_packets", "rx_bytes", "wep_weak_iv_count",
585 "rx_duplicates", "rx_fragments", "rx_dropped",
586 "tx_packets", "tx_bytes", "tx_fragments",
587 "tx_filtered", "tx_retry_failed", "tx_retries",
588 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
589 "channel", "noise", "ch_time", "ch_time_busy",
590 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
591};
592#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
593
594static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
595 struct net_device *dev,
596 int sset)
597{
598 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
599 int rv = 0;
600
601 if (sset == ETH_SS_STATS)
602 rv += STA_STATS_LEN;
603
604 rv += drv_get_et_sset_count(sdata, sset);
605
606 if (rv == 0)
607 return -EOPNOTSUPP;
608 return rv;
609}
610
611static void ieee80211_get_et_stats(struct wiphy *wiphy,
612 struct net_device *dev,
613 struct ethtool_stats *stats,
614 u64 *data)
615{
616 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
617 struct ieee80211_chanctx_conf *chanctx_conf;
618 struct ieee80211_channel *channel;
619 struct sta_info *sta;
620 struct ieee80211_local *local = sdata->local;
621 struct station_info sinfo;
622 struct survey_info survey;
623 int i, q;
624#define STA_STATS_SURVEY_LEN 7
625
626 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
627
628#define ADD_STA_STATS(sta) \
629 do { \
630 data[i++] += sta->rx_packets; \
631 data[i++] += sta->rx_bytes; \
632 data[i++] += sta->wep_weak_iv_count; \
633 data[i++] += sta->num_duplicates; \
634 data[i++] += sta->rx_fragments; \
635 data[i++] += sta->rx_dropped; \
636 \
637 data[i++] += sinfo.tx_packets; \
638 data[i++] += sinfo.tx_bytes; \
639 data[i++] += sta->tx_fragments; \
640 data[i++] += sta->tx_filtered_count; \
641 data[i++] += sta->tx_retry_failed; \
642 data[i++] += sta->tx_retry_count; \
643 data[i++] += sta->beacon_loss_count; \
644 } while (0)
645
646 /* For Managed stations, find the single station based on BSSID
647 * and use that. For interface types, iterate through all available
648 * stations and add stats for any station that is assigned to this
649 * network device.
650 */
651
652 mutex_lock(&local->sta_mtx);
653
654 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
655 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
656
657 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
658 goto do_survey;
659
660 sinfo.filled = 0;
661 sta_set_sinfo(sta, &sinfo);
662
663 i = 0;
664 ADD_STA_STATS(sta);
665
666 data[i++] = sta->sta_state;
667
668
669 if (sinfo.filled & STATION_INFO_TX_BITRATE)
670 data[i] = 100000 *
671 cfg80211_calculate_bitrate(&sinfo.txrate);
672 i++;
673 if (sinfo.filled & STATION_INFO_RX_BITRATE)
674 data[i] = 100000 *
675 cfg80211_calculate_bitrate(&sinfo.rxrate);
676 i++;
677
678 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
679 data[i] = (u8)sinfo.signal_avg;
680 i++;
681 } else {
682 list_for_each_entry(sta, &local->sta_list, list) {
683 /* Make sure this station belongs to the proper dev */
684 if (sta->sdata->dev != dev)
685 continue;
686
687 sinfo.filled = 0;
688 sta_set_sinfo(sta, &sinfo);
689 i = 0;
690 ADD_STA_STATS(sta);
691 }
692 }
693
694do_survey:
695 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
696 /* Get survey stats for current channel */
697 survey.filled = 0;
698
699 rcu_read_lock();
700 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
701 if (chanctx_conf)
702 channel = chanctx_conf->def.chan;
703 else
704 channel = NULL;
705 rcu_read_unlock();
706
707 if (channel) {
708 q = 0;
709 do {
710 survey.filled = 0;
711 if (drv_get_survey(local, q, &survey) != 0) {
712 survey.filled = 0;
713 break;
714 }
715 q++;
716 } while (channel != survey.channel);
717 }
718
719 if (survey.filled)
720 data[i++] = survey.channel->center_freq;
721 else
722 data[i++] = 0;
723 if (survey.filled & SURVEY_INFO_NOISE_DBM)
724 data[i++] = (u8)survey.noise;
725 else
726 data[i++] = -1LL;
727 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
728 data[i++] = survey.channel_time;
729 else
730 data[i++] = -1LL;
731 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
732 data[i++] = survey.channel_time_busy;
733 else
734 data[i++] = -1LL;
735 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
736 data[i++] = survey.channel_time_ext_busy;
737 else
738 data[i++] = -1LL;
739 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
740 data[i++] = survey.channel_time_rx;
741 else
742 data[i++] = -1LL;
743 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
744 data[i++] = survey.channel_time_tx;
745 else
746 data[i++] = -1LL;
747
748 mutex_unlock(&local->sta_mtx);
749
750 if (WARN_ON(i != STA_STATS_LEN))
751 return;
752
753 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
754}
755
756static void ieee80211_get_et_strings(struct wiphy *wiphy,
757 struct net_device *dev,
758 u32 sset, u8 *data)
759{
760 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
761 int sz_sta_stats = 0;
762
763 if (sset == ETH_SS_STATS) {
764 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
765 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
766 }
767 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
768}
769
770static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
771 int idx, u8 *mac, struct station_info *sinfo)
772{
773 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
774 struct ieee80211_local *local = sdata->local;
775 struct sta_info *sta;
776 int ret = -ENOENT;
777
778 mutex_lock(&local->sta_mtx);
779
780 sta = sta_info_get_by_idx(sdata, idx);
781 if (sta) {
782 ret = 0;
783 memcpy(mac, sta->sta.addr, ETH_ALEN);
784 sta_set_sinfo(sta, sinfo);
785 }
786
787 mutex_unlock(&local->sta_mtx);
788
789 return ret;
790}
791
792static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
793 int idx, struct survey_info *survey)
794{
795 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
796
797 return drv_get_survey(local, idx, survey);
798}
799
800static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
801 u8 *mac, struct station_info *sinfo)
802{
803 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
804 struct ieee80211_local *local = sdata->local;
805 struct sta_info *sta;
806 int ret = -ENOENT;
807
808 mutex_lock(&local->sta_mtx);
809
810 sta = sta_info_get_bss(sdata, mac);
811 if (sta) {
812 ret = 0;
813 sta_set_sinfo(sta, sinfo);
814 }
815
816 mutex_unlock(&local->sta_mtx);
817
818 return ret;
819}
820
821static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
822 struct cfg80211_chan_def *chandef)
823{
824 struct ieee80211_local *local = wiphy_priv(wiphy);
825 struct ieee80211_sub_if_data *sdata;
826 int ret = 0;
827
828 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
829 return 0;
830
831 mutex_lock(&local->mtx);
832 mutex_lock(&local->iflist_mtx);
833 if (local->use_chanctx) {
834 sdata = rcu_dereference_protected(
835 local->monitor_sdata,
836 lockdep_is_held(&local->iflist_mtx));
837 if (sdata) {
838 ieee80211_vif_release_channel(sdata);
839 ret = ieee80211_vif_use_channel(sdata, chandef,
840 IEEE80211_CHANCTX_EXCLUSIVE);
841 }
842 } else if (local->open_count == local->monitors) {
843 local->_oper_chandef = *chandef;
844 ieee80211_hw_config(local, 0);
845 }
846
847 if (ret == 0)
848 local->monitor_chandef = *chandef;
849 mutex_unlock(&local->iflist_mtx);
850 mutex_unlock(&local->mtx);
851
852 return ret;
853}
854
855static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
856 const u8 *resp, size_t resp_len)
857{
858 struct probe_resp *new, *old;
859
860 if (!resp || !resp_len)
861 return 1;
862
863 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
864
865 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
866 if (!new)
867 return -ENOMEM;
868
869 new->len = resp_len;
870 memcpy(new->data, resp, resp_len);
871
872 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
873 if (old)
874 kfree_rcu(old, rcu_head);
875
876 return 0;
877}
878
879static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
880 struct cfg80211_beacon_data *params)
881{
882 struct beacon_data *new, *old;
883 int new_head_len, new_tail_len;
884 int size, err;
885 u32 changed = BSS_CHANGED_BEACON;
886
887 old = sdata_dereference(sdata->u.ap.beacon, sdata);
888
889
890 /* Need to have a beacon head if we don't have one yet */
891 if (!params->head && !old)
892 return -EINVAL;
893
894 /* new or old head? */
895 if (params->head)
896 new_head_len = params->head_len;
897 else
898 new_head_len = old->head_len;
899
900 /* new or old tail? */
901 if (params->tail || !old)
902 /* params->tail_len will be zero for !params->tail */
903 new_tail_len = params->tail_len;
904 else
905 new_tail_len = old->tail_len;
906
907 size = sizeof(*new) + new_head_len + new_tail_len;
908
909 new = kzalloc(size, GFP_KERNEL);
910 if (!new)
911 return -ENOMEM;
912
913 /* start filling the new info now */
914
915 /*
916 * pointers go into the block we allocated,
917 * memory is | beacon_data | head | tail |
918 */
919 new->head = ((u8 *) new) + sizeof(*new);
920 new->tail = new->head + new_head_len;
921 new->head_len = new_head_len;
922 new->tail_len = new_tail_len;
923
924 /* copy in head */
925 if (params->head)
926 memcpy(new->head, params->head, new_head_len);
927 else
928 memcpy(new->head, old->head, new_head_len);
929
930 /* copy in optional tail */
931 if (params->tail)
932 memcpy(new->tail, params->tail, new_tail_len);
933 else
934 if (old)
935 memcpy(new->tail, old->tail, new_tail_len);
936
937 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
938 params->probe_resp_len);
939 if (err < 0)
940 return err;
941 if (err == 0)
942 changed |= BSS_CHANGED_AP_PROBE_RESP;
943
944 rcu_assign_pointer(sdata->u.ap.beacon, new);
945
946 if (old)
947 kfree_rcu(old, rcu_head);
948
949 return changed;
950}
951
952static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
953 struct cfg80211_ap_settings *params)
954{
955 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
956 struct ieee80211_local *local = sdata->local;
957 struct beacon_data *old;
958 struct ieee80211_sub_if_data *vlan;
959 u32 changed = BSS_CHANGED_BEACON_INT |
960 BSS_CHANGED_BEACON_ENABLED |
961 BSS_CHANGED_BEACON |
962 BSS_CHANGED_SSID |
963 BSS_CHANGED_P2P_PS;
964 int err;
965
966 old = sdata_dereference(sdata->u.ap.beacon, sdata);
967 if (old)
968 return -EALREADY;
969
970 /* TODO: make hostapd tell us what it wants */
971 sdata->smps_mode = IEEE80211_SMPS_OFF;
972 sdata->needed_rx_chains = sdata->local->rx_chains;
973 sdata->radar_required = params->radar_required;
974
975 mutex_lock(&local->mtx);
976 err = ieee80211_vif_use_channel(sdata, &params->chandef,
977 IEEE80211_CHANCTX_SHARED);
978 mutex_unlock(&local->mtx);
979 if (err)
980 return err;
981 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
982
983 /*
984 * Apply control port protocol, this allows us to
985 * not encrypt dynamic WEP control frames.
986 */
987 sdata->control_port_protocol = params->crypto.control_port_ethertype;
988 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
989 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
990 &params->crypto,
991 sdata->vif.type);
992
993 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
994 vlan->control_port_protocol =
995 params->crypto.control_port_ethertype;
996 vlan->control_port_no_encrypt =
997 params->crypto.control_port_no_encrypt;
998 vlan->encrypt_headroom =
999 ieee80211_cs_headroom(sdata->local,
1000 &params->crypto,
1001 vlan->vif.type);
1002 }
1003
1004 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1005 sdata->vif.bss_conf.dtim_period = params->dtim_period;
1006 sdata->vif.bss_conf.enable_beacon = true;
1007
1008 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1009 if (params->ssid_len)
1010 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1011 params->ssid_len);
1012 sdata->vif.bss_conf.hidden_ssid =
1013 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1014
1015 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1016 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1017 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1018 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1019 if (params->p2p_opp_ps)
1020 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1021 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1022
1023 err = ieee80211_assign_beacon(sdata, &params->beacon);
1024 if (err < 0)
1025 return err;
1026 changed |= err;
1027
1028 err = drv_start_ap(sdata->local, sdata);
1029 if (err) {
1030 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1031
1032 if (old)
1033 kfree_rcu(old, rcu_head);
1034 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1035 return err;
1036 }
1037
1038 ieee80211_bss_info_change_notify(sdata, changed);
1039
1040 netif_carrier_on(dev);
1041 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1042 netif_carrier_on(vlan->dev);
1043
1044 return 0;
1045}
1046
1047static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1048 struct cfg80211_beacon_data *params)
1049{
1050 struct ieee80211_sub_if_data *sdata;
1051 struct beacon_data *old;
1052 int err;
1053
1054 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1055
1056 /* don't allow changing the beacon while CSA is in place - offset
1057 * of channel switch counter may change
1058 */
1059 if (sdata->vif.csa_active)
1060 return -EBUSY;
1061
1062 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1063 if (!old)
1064 return -ENOENT;
1065
1066 err = ieee80211_assign_beacon(sdata, params);
1067 if (err < 0)
1068 return err;
1069 ieee80211_bss_info_change_notify(sdata, err);
1070 return 0;
1071}
1072
1073static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
1074{
1075 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1076 struct ieee80211_sub_if_data *vlan;
1077 struct ieee80211_local *local = sdata->local;
1078 struct beacon_data *old_beacon;
1079 struct probe_resp *old_probe_resp;
1080 struct cfg80211_chan_def chandef;
1081
1082 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
1083 if (!old_beacon)
1084 return -ENOENT;
1085 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
1086
1087 /* abort any running channel switch */
1088 sdata->vif.csa_active = false;
1089 kfree(sdata->u.ap.next_beacon);
1090 sdata->u.ap.next_beacon = NULL;
1091
1092 cancel_work_sync(&sdata->u.ap.request_smps_work);
1093
1094 /* turn off carrier for this interface and dependent VLANs */
1095 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1096 netif_carrier_off(vlan->dev);
1097 netif_carrier_off(dev);
1098
1099 /* remove beacon and probe response */
1100 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1101 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1102 kfree_rcu(old_beacon, rcu_head);
1103 if (old_probe_resp)
1104 kfree_rcu(old_probe_resp, rcu_head);
1105
1106 __sta_info_flush(sdata, true);
1107 ieee80211_free_keys(sdata, true);
1108
1109 sdata->vif.bss_conf.enable_beacon = false;
1110 sdata->vif.bss_conf.ssid_len = 0;
1111 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
1112 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1113
1114 if (sdata->wdev.cac_started) {
1115 chandef = sdata->vif.bss_conf.chandef;
1116 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
1117 cfg80211_cac_event(sdata->dev, &chandef,
1118 NL80211_RADAR_CAC_ABORTED,
1119 GFP_KERNEL);
1120 }
1121
1122 drv_stop_ap(sdata->local, sdata);
1123
1124 /* free all potentially still buffered bcast frames */
1125 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1126 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1127
1128 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
1129 mutex_lock(&local->mtx);
1130 ieee80211_vif_release_channel(sdata);
1131 mutex_unlock(&local->mtx);
1132
1133 return 0;
1134}
1135
1136/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1137struct iapp_layer2_update {
1138 u8 da[ETH_ALEN]; /* broadcast */
1139 u8 sa[ETH_ALEN]; /* STA addr */
1140 __be16 len; /* 6 */
1141 u8 dsap; /* 0 */
1142 u8 ssap; /* 0 */
1143 u8 control;
1144 u8 xid_info[3];
1145} __packed;
1146
1147static void ieee80211_send_layer2_update(struct sta_info *sta)
1148{
1149 struct iapp_layer2_update *msg;
1150 struct sk_buff *skb;
1151
1152 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1153 * bridge devices */
1154
1155 skb = dev_alloc_skb(sizeof(*msg));
1156 if (!skb)
1157 return;
1158 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1159
1160 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1161 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1162
1163 eth_broadcast_addr(msg->da);
1164 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1165 msg->len = htons(6);
1166 msg->dsap = 0;
1167 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1168 msg->control = 0xaf; /* XID response lsb.1111F101.
1169 * F=0 (no poll command; unsolicited frame) */
1170 msg->xid_info[0] = 0x81; /* XID format identifier */
1171 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1172 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1173
1174 skb->dev = sta->sdata->dev;
1175 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1176 memset(skb->cb, 0, sizeof(skb->cb));
1177 netif_rx_ni(skb);
1178}
1179
1180static int sta_apply_auth_flags(struct ieee80211_local *local,
1181 struct sta_info *sta,
1182 u32 mask, u32 set)
1183{
1184 int ret;
1185
1186 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1187 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1188 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1189 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1190 if (ret)
1191 return ret;
1192 }
1193
1194 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1195 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1196 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1197 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1198 if (ret)
1199 return ret;
1200 }
1201
1202 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1203 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1204 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1205 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1206 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1207 else
1208 ret = 0;
1209 if (ret)
1210 return ret;
1211 }
1212
1213 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1214 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1215 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1216 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1217 if (ret)
1218 return ret;
1219 }
1220
1221 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1222 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1223 test_sta_flag(sta, WLAN_STA_AUTH)) {
1224 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1225 if (ret)
1226 return ret;
1227 }
1228
1229 return 0;
1230}
1231
1232static int sta_apply_parameters(struct ieee80211_local *local,
1233 struct sta_info *sta,
1234 struct station_parameters *params)
1235{
1236 int ret = 0;
1237 struct ieee80211_supported_band *sband;
1238 struct ieee80211_sub_if_data *sdata = sta->sdata;
1239 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1240 u32 mask, set;
1241
1242 sband = local->hw.wiphy->bands[band];
1243
1244 mask = params->sta_flags_mask;
1245 set = params->sta_flags_set;
1246
1247 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1248 /*
1249 * In mesh mode, ASSOCIATED isn't part of the nl80211
1250 * API but must follow AUTHENTICATED for driver state.
1251 */
1252 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1253 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1254 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1255 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1256 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1257 /*
1258 * TDLS -- everything follows authorized, but
1259 * only becoming authorized is possible, not
1260 * going back
1261 */
1262 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1263 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1264 BIT(NL80211_STA_FLAG_ASSOCIATED);
1265 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1266 BIT(NL80211_STA_FLAG_ASSOCIATED);
1267 }
1268 }
1269
1270 ret = sta_apply_auth_flags(local, sta, mask, set);
1271 if (ret)
1272 return ret;
1273
1274 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1275 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1276 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1277 else
1278 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1279 }
1280
1281 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1282 if (set & BIT(NL80211_STA_FLAG_WME)) {
1283 set_sta_flag(sta, WLAN_STA_WME);
1284 sta->sta.wme = true;
1285 } else {
1286 clear_sta_flag(sta, WLAN_STA_WME);
1287 sta->sta.wme = false;
1288 }
1289 }
1290
1291 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1292 if (set & BIT(NL80211_STA_FLAG_MFP))
1293 set_sta_flag(sta, WLAN_STA_MFP);
1294 else
1295 clear_sta_flag(sta, WLAN_STA_MFP);
1296 }
1297
1298 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1299 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1300 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1301 else
1302 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1303 }
1304
1305 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1306 sta->sta.uapsd_queues = params->uapsd_queues;
1307 sta->sta.max_sp = params->max_sp;
1308 }
1309
1310 /*
1311 * cfg80211 validates this (1-2007) and allows setting the AID
1312 * only when creating a new station entry
1313 */
1314 if (params->aid)
1315 sta->sta.aid = params->aid;
1316
1317 /*
1318 * Some of the following updates would be racy if called on an
1319 * existing station, via ieee80211_change_station(). However,
1320 * all such changes are rejected by cfg80211 except for updates
1321 * changing the supported rates on an existing but not yet used
1322 * TDLS peer.
1323 */
1324
1325 if (params->listen_interval >= 0)
1326 sta->listen_interval = params->listen_interval;
1327
1328 if (params->supported_rates) {
1329 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1330 sband, params->supported_rates,
1331 params->supported_rates_len,
1332 &sta->sta.supp_rates[band]);
1333 }
1334
1335 if (params->ht_capa)
1336 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1337 params->ht_capa, sta);
1338
1339 if (params->vht_capa)
1340 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1341 params->vht_capa, sta);
1342
1343 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1344#ifdef CONFIG_MAC80211_MESH
1345 u32 changed = 0;
1346
1347 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1348 switch (params->plink_state) {
1349 case NL80211_PLINK_ESTAB:
1350 if (sta->plink_state != NL80211_PLINK_ESTAB)
1351 changed = mesh_plink_inc_estab_count(
1352 sdata);
1353 sta->plink_state = params->plink_state;
1354
1355 ieee80211_mps_sta_status_update(sta);
1356 changed |= ieee80211_mps_set_sta_local_pm(sta,
1357 sdata->u.mesh.mshcfg.power_mode);
1358 break;
1359 case NL80211_PLINK_LISTEN:
1360 case NL80211_PLINK_BLOCKED:
1361 case NL80211_PLINK_OPN_SNT:
1362 case NL80211_PLINK_OPN_RCVD:
1363 case NL80211_PLINK_CNF_RCVD:
1364 case NL80211_PLINK_HOLDING:
1365 if (sta->plink_state == NL80211_PLINK_ESTAB)
1366 changed = mesh_plink_dec_estab_count(
1367 sdata);
1368 sta->plink_state = params->plink_state;
1369
1370 ieee80211_mps_sta_status_update(sta);
1371 changed |= ieee80211_mps_set_sta_local_pm(sta,
1372 NL80211_MESH_POWER_UNKNOWN);
1373 break;
1374 default:
1375 /* nothing */
1376 break;
1377 }
1378 }
1379
1380 switch (params->plink_action) {
1381 case NL80211_PLINK_ACTION_NO_ACTION:
1382 /* nothing */
1383 break;
1384 case NL80211_PLINK_ACTION_OPEN:
1385 changed |= mesh_plink_open(sta);
1386 break;
1387 case NL80211_PLINK_ACTION_BLOCK:
1388 changed |= mesh_plink_block(sta);
1389 break;
1390 }
1391
1392 if (params->local_pm)
1393 changed |=
1394 ieee80211_mps_set_sta_local_pm(sta,
1395 params->local_pm);
1396 ieee80211_mbss_info_change_notify(sdata, changed);
1397#endif
1398 }
1399
1400 return 0;
1401}
1402
1403static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1404 u8 *mac, struct station_parameters *params)
1405{
1406 struct ieee80211_local *local = wiphy_priv(wiphy);
1407 struct sta_info *sta;
1408 struct ieee80211_sub_if_data *sdata;
1409 int err;
1410 int layer2_update;
1411
1412 if (params->vlan) {
1413 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1414
1415 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1416 sdata->vif.type != NL80211_IFTYPE_AP)
1417 return -EINVAL;
1418 } else
1419 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1420
1421 if (ether_addr_equal(mac, sdata->vif.addr))
1422 return -EINVAL;
1423
1424 if (is_multicast_ether_addr(mac))
1425 return -EINVAL;
1426
1427 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1428 if (!sta)
1429 return -ENOMEM;
1430
1431 /*
1432 * defaults -- if userspace wants something else we'll
1433 * change it accordingly in sta_apply_parameters()
1434 */
1435 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1436 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1437 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1438 }
1439
1440 err = sta_apply_parameters(local, sta, params);
1441 if (err) {
1442 sta_info_free(local, sta);
1443 return err;
1444 }
1445
1446 /*
1447 * for TDLS, rate control should be initialized only when
1448 * rates are known and station is marked authorized
1449 */
1450 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1451 rate_control_rate_init(sta);
1452
1453 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1454 sdata->vif.type == NL80211_IFTYPE_AP;
1455
1456 err = sta_info_insert_rcu(sta);
1457 if (err) {
1458 rcu_read_unlock();
1459 return err;
1460 }
1461
1462 if (layer2_update)
1463 ieee80211_send_layer2_update(sta);
1464
1465 rcu_read_unlock();
1466
1467 return 0;
1468}
1469
1470static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1471 u8 *mac)
1472{
1473 struct ieee80211_sub_if_data *sdata;
1474
1475 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1476
1477 if (mac)
1478 return sta_info_destroy_addr_bss(sdata, mac);
1479
1480 sta_info_flush(sdata);
1481 return 0;
1482}
1483
1484static int ieee80211_change_station(struct wiphy *wiphy,
1485 struct net_device *dev, u8 *mac,
1486 struct station_parameters *params)
1487{
1488 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1489 struct ieee80211_local *local = wiphy_priv(wiphy);
1490 struct sta_info *sta;
1491 struct ieee80211_sub_if_data *vlansdata;
1492 enum cfg80211_station_type statype;
1493 int err;
1494
1495 mutex_lock(&local->sta_mtx);
1496
1497 sta = sta_info_get_bss(sdata, mac);
1498 if (!sta) {
1499 err = -ENOENT;
1500 goto out_err;
1501 }
1502
1503 switch (sdata->vif.type) {
1504 case NL80211_IFTYPE_MESH_POINT:
1505 if (sdata->u.mesh.user_mpm)
1506 statype = CFG80211_STA_MESH_PEER_USER;
1507 else
1508 statype = CFG80211_STA_MESH_PEER_KERNEL;
1509 break;
1510 case NL80211_IFTYPE_ADHOC:
1511 statype = CFG80211_STA_IBSS;
1512 break;
1513 case NL80211_IFTYPE_STATION:
1514 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1515 statype = CFG80211_STA_AP_STA;
1516 break;
1517 }
1518 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1519 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1520 else
1521 statype = CFG80211_STA_TDLS_PEER_SETUP;
1522 break;
1523 case NL80211_IFTYPE_AP:
1524 case NL80211_IFTYPE_AP_VLAN:
1525 statype = CFG80211_STA_AP_CLIENT;
1526 break;
1527 default:
1528 err = -EOPNOTSUPP;
1529 goto out_err;
1530 }
1531
1532 err = cfg80211_check_station_change(wiphy, params, statype);
1533 if (err)
1534 goto out_err;
1535
1536 if (params->vlan && params->vlan != sta->sdata->dev) {
1537 bool prev_4addr = false;
1538 bool new_4addr = false;
1539
1540 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1541
1542 if (params->vlan->ieee80211_ptr->use_4addr) {
1543 if (vlansdata->u.vlan.sta) {
1544 err = -EBUSY;
1545 goto out_err;
1546 }
1547
1548 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1549 new_4addr = true;
1550 }
1551
1552 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1553 sta->sdata->u.vlan.sta) {
1554 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1555 prev_4addr = true;
1556 }
1557
1558 sta->sdata = vlansdata;
1559
1560 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1561 prev_4addr != new_4addr) {
1562 if (new_4addr)
1563 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1564 else
1565 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1566 }
1567
1568 ieee80211_send_layer2_update(sta);
1569 }
1570
1571 err = sta_apply_parameters(local, sta, params);
1572 if (err)
1573 goto out_err;
1574
1575 /* When peer becomes authorized, init rate control as well */
1576 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1577 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1578 rate_control_rate_init(sta);
1579
1580 mutex_unlock(&local->sta_mtx);
1581
1582 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1583 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1584 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1585 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1586 sta_info_tx_streams(sta) != 1) {
1587 ht_dbg(sta->sdata,
1588 "%pM just authorized and MIMO capable - update SMPS\n",
1589 sta->sta.addr);
1590 ieee80211_send_smps_action(sta->sdata,
1591 sta->sdata->bss->req_smps,
1592 sta->sta.addr,
1593 sta->sdata->vif.bss_conf.bssid);
1594 }
1595
1596 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1597 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1598 ieee80211_recalc_ps(local, -1);
1599 ieee80211_recalc_ps_vif(sdata);
1600 }
1601
1602 return 0;
1603out_err:
1604 mutex_unlock(&local->sta_mtx);
1605 return err;
1606}
1607
1608#ifdef CONFIG_MAC80211_MESH
1609static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1610 u8 *dst, u8 *next_hop)
1611{
1612 struct ieee80211_sub_if_data *sdata;
1613 struct mesh_path *mpath;
1614 struct sta_info *sta;
1615
1616 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1617
1618 rcu_read_lock();
1619 sta = sta_info_get(sdata, next_hop);
1620 if (!sta) {
1621 rcu_read_unlock();
1622 return -ENOENT;
1623 }
1624
1625 mpath = mesh_path_add(sdata, dst);
1626 if (IS_ERR(mpath)) {
1627 rcu_read_unlock();
1628 return PTR_ERR(mpath);
1629 }
1630
1631 mesh_path_fix_nexthop(mpath, sta);
1632
1633 rcu_read_unlock();
1634 return 0;
1635}
1636
1637static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1638 u8 *dst)
1639{
1640 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1641
1642 if (dst)
1643 return mesh_path_del(sdata, dst);
1644
1645 mesh_path_flush_by_iface(sdata);
1646 return 0;
1647}
1648
1649static int ieee80211_change_mpath(struct wiphy *wiphy,
1650 struct net_device *dev,
1651 u8 *dst, u8 *next_hop)
1652{
1653 struct ieee80211_sub_if_data *sdata;
1654 struct mesh_path *mpath;
1655 struct sta_info *sta;
1656
1657 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1658
1659 rcu_read_lock();
1660
1661 sta = sta_info_get(sdata, next_hop);
1662 if (!sta) {
1663 rcu_read_unlock();
1664 return -ENOENT;
1665 }
1666
1667 mpath = mesh_path_lookup(sdata, dst);
1668 if (!mpath) {
1669 rcu_read_unlock();
1670 return -ENOENT;
1671 }
1672
1673 mesh_path_fix_nexthop(mpath, sta);
1674
1675 rcu_read_unlock();
1676 return 0;
1677}
1678
1679static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1680 struct mpath_info *pinfo)
1681{
1682 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1683
1684 if (next_hop_sta)
1685 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1686 else
1687 memset(next_hop, 0, ETH_ALEN);
1688
1689 memset(pinfo, 0, sizeof(*pinfo));
1690
1691 pinfo->generation = mesh_paths_generation;
1692
1693 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1694 MPATH_INFO_SN |
1695 MPATH_INFO_METRIC |
1696 MPATH_INFO_EXPTIME |
1697 MPATH_INFO_DISCOVERY_TIMEOUT |
1698 MPATH_INFO_DISCOVERY_RETRIES |
1699 MPATH_INFO_FLAGS;
1700
1701 pinfo->frame_qlen = mpath->frame_queue.qlen;
1702 pinfo->sn = mpath->sn;
1703 pinfo->metric = mpath->metric;
1704 if (time_before(jiffies, mpath->exp_time))
1705 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1706 pinfo->discovery_timeout =
1707 jiffies_to_msecs(mpath->discovery_timeout);
1708 pinfo->discovery_retries = mpath->discovery_retries;
1709 if (mpath->flags & MESH_PATH_ACTIVE)
1710 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1711 if (mpath->flags & MESH_PATH_RESOLVING)
1712 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1713 if (mpath->flags & MESH_PATH_SN_VALID)
1714 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1715 if (mpath->flags & MESH_PATH_FIXED)
1716 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1717 if (mpath->flags & MESH_PATH_RESOLVED)
1718 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1719}
1720
1721static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1722 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1723
1724{
1725 struct ieee80211_sub_if_data *sdata;
1726 struct mesh_path *mpath;
1727
1728 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1729
1730 rcu_read_lock();
1731 mpath = mesh_path_lookup(sdata, dst);
1732 if (!mpath) {
1733 rcu_read_unlock();
1734 return -ENOENT;
1735 }
1736 memcpy(dst, mpath->dst, ETH_ALEN);
1737 mpath_set_pinfo(mpath, next_hop, pinfo);
1738 rcu_read_unlock();
1739 return 0;
1740}
1741
1742static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1743 int idx, u8 *dst, u8 *next_hop,
1744 struct mpath_info *pinfo)
1745{
1746 struct ieee80211_sub_if_data *sdata;
1747 struct mesh_path *mpath;
1748
1749 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1750
1751 rcu_read_lock();
1752 mpath = mesh_path_lookup_by_idx(sdata, idx);
1753 if (!mpath) {
1754 rcu_read_unlock();
1755 return -ENOENT;
1756 }
1757 memcpy(dst, mpath->dst, ETH_ALEN);
1758 mpath_set_pinfo(mpath, next_hop, pinfo);
1759 rcu_read_unlock();
1760 return 0;
1761}
1762
1763static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1764 struct net_device *dev,
1765 struct mesh_config *conf)
1766{
1767 struct ieee80211_sub_if_data *sdata;
1768 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1769
1770 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1771 return 0;
1772}
1773
1774static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1775{
1776 return (mask >> (parm-1)) & 0x1;
1777}
1778
1779static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1780 const struct mesh_setup *setup)
1781{
1782 u8 *new_ie;
1783 const u8 *old_ie;
1784 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1785 struct ieee80211_sub_if_data, u.mesh);
1786
1787 /* allocate information elements */
1788 new_ie = NULL;
1789 old_ie = ifmsh->ie;
1790
1791 if (setup->ie_len) {
1792 new_ie = kmemdup(setup->ie, setup->ie_len,
1793 GFP_KERNEL);
1794 if (!new_ie)
1795 return -ENOMEM;
1796 }
1797 ifmsh->ie_len = setup->ie_len;
1798 ifmsh->ie = new_ie;
1799 kfree(old_ie);
1800
1801 /* now copy the rest of the setup parameters */
1802 ifmsh->mesh_id_len = setup->mesh_id_len;
1803 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1804 ifmsh->mesh_sp_id = setup->sync_method;
1805 ifmsh->mesh_pp_id = setup->path_sel_proto;
1806 ifmsh->mesh_pm_id = setup->path_metric;
1807 ifmsh->user_mpm = setup->user_mpm;
1808 ifmsh->mesh_auth_id = setup->auth_id;
1809 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1810 if (setup->is_authenticated)
1811 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1812 if (setup->is_secure)
1813 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1814
1815 /* mcast rate setting in Mesh Node */
1816 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1817 sizeof(setup->mcast_rate));
1818 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
1819
1820 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1821 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1822
1823 return 0;
1824}
1825
1826static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1827 struct net_device *dev, u32 mask,
1828 const struct mesh_config *nconf)
1829{
1830 struct mesh_config *conf;
1831 struct ieee80211_sub_if_data *sdata;
1832 struct ieee80211_if_mesh *ifmsh;
1833
1834 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1835 ifmsh = &sdata->u.mesh;
1836
1837 /* Set the config options which we are interested in setting */
1838 conf = &(sdata->u.mesh.mshcfg);
1839 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1840 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1841 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1842 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1843 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1844 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1845 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1846 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1847 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1848 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1849 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1850 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1851 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1852 conf->element_ttl = nconf->element_ttl;
1853 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1854 if (ifmsh->user_mpm)
1855 return -EBUSY;
1856 conf->auto_open_plinks = nconf->auto_open_plinks;
1857 }
1858 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1859 conf->dot11MeshNbrOffsetMaxNeighbor =
1860 nconf->dot11MeshNbrOffsetMaxNeighbor;
1861 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1862 conf->dot11MeshHWMPmaxPREQretries =
1863 nconf->dot11MeshHWMPmaxPREQretries;
1864 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1865 conf->path_refresh_time = nconf->path_refresh_time;
1866 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1867 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1868 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1869 conf->dot11MeshHWMPactivePathTimeout =
1870 nconf->dot11MeshHWMPactivePathTimeout;
1871 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1872 conf->dot11MeshHWMPpreqMinInterval =
1873 nconf->dot11MeshHWMPpreqMinInterval;
1874 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1875 conf->dot11MeshHWMPperrMinInterval =
1876 nconf->dot11MeshHWMPperrMinInterval;
1877 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1878 mask))
1879 conf->dot11MeshHWMPnetDiameterTraversalTime =
1880 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1881 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1882 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1883 ieee80211_mesh_root_setup(ifmsh);
1884 }
1885 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1886 /* our current gate announcement implementation rides on root
1887 * announcements, so require this ifmsh to also be a root node
1888 * */
1889 if (nconf->dot11MeshGateAnnouncementProtocol &&
1890 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1891 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1892 ieee80211_mesh_root_setup(ifmsh);
1893 }
1894 conf->dot11MeshGateAnnouncementProtocol =
1895 nconf->dot11MeshGateAnnouncementProtocol;
1896 }
1897 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1898 conf->dot11MeshHWMPRannInterval =
1899 nconf->dot11MeshHWMPRannInterval;
1900 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1901 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1902 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1903 /* our RSSI threshold implementation is supported only for
1904 * devices that report signal in dBm.
1905 */
1906 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1907 return -ENOTSUPP;
1908 conf->rssi_threshold = nconf->rssi_threshold;
1909 }
1910 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1911 conf->ht_opmode = nconf->ht_opmode;
1912 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1913 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1914 }
1915 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1916 conf->dot11MeshHWMPactivePathToRootTimeout =
1917 nconf->dot11MeshHWMPactivePathToRootTimeout;
1918 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1919 conf->dot11MeshHWMProotInterval =
1920 nconf->dot11MeshHWMProotInterval;
1921 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1922 conf->dot11MeshHWMPconfirmationInterval =
1923 nconf->dot11MeshHWMPconfirmationInterval;
1924 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1925 conf->power_mode = nconf->power_mode;
1926 ieee80211_mps_local_status_update(sdata);
1927 }
1928 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
1929 conf->dot11MeshAwakeWindowDuration =
1930 nconf->dot11MeshAwakeWindowDuration;
1931 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1932 conf->plink_timeout = nconf->plink_timeout;
1933 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
1934 return 0;
1935}
1936
1937static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1938 const struct mesh_config *conf,
1939 const struct mesh_setup *setup)
1940{
1941 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1942 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1943 int err;
1944
1945 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1946 err = copy_mesh_setup(ifmsh, setup);
1947 if (err)
1948 return err;
1949
1950 /* can mesh use other SMPS modes? */
1951 sdata->smps_mode = IEEE80211_SMPS_OFF;
1952 sdata->needed_rx_chains = sdata->local->rx_chains;
1953
1954 mutex_lock(&sdata->local->mtx);
1955 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1956 IEEE80211_CHANCTX_SHARED);
1957 mutex_unlock(&sdata->local->mtx);
1958 if (err)
1959 return err;
1960
1961 return ieee80211_start_mesh(sdata);
1962}
1963
1964static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1965{
1966 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1967
1968 ieee80211_stop_mesh(sdata);
1969 mutex_lock(&sdata->local->mtx);
1970 ieee80211_vif_release_channel(sdata);
1971 mutex_unlock(&sdata->local->mtx);
1972
1973 return 0;
1974}
1975#endif
1976
1977static int ieee80211_change_bss(struct wiphy *wiphy,
1978 struct net_device *dev,
1979 struct bss_parameters *params)
1980{
1981 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1982 enum ieee80211_band band;
1983 u32 changed = 0;
1984
1985 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
1986 return -ENOENT;
1987
1988 band = ieee80211_get_sdata_band(sdata);
1989
1990 if (params->use_cts_prot >= 0) {
1991 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1992 changed |= BSS_CHANGED_ERP_CTS_PROT;
1993 }
1994 if (params->use_short_preamble >= 0) {
1995 sdata->vif.bss_conf.use_short_preamble =
1996 params->use_short_preamble;
1997 changed |= BSS_CHANGED_ERP_PREAMBLE;
1998 }
1999
2000 if (!sdata->vif.bss_conf.use_short_slot &&
2001 band == IEEE80211_BAND_5GHZ) {
2002 sdata->vif.bss_conf.use_short_slot = true;
2003 changed |= BSS_CHANGED_ERP_SLOT;
2004 }
2005
2006 if (params->use_short_slot_time >= 0) {
2007 sdata->vif.bss_conf.use_short_slot =
2008 params->use_short_slot_time;
2009 changed |= BSS_CHANGED_ERP_SLOT;
2010 }
2011
2012 if (params->basic_rates) {
2013 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2014 wiphy->bands[band],
2015 params->basic_rates,
2016 params->basic_rates_len,
2017 &sdata->vif.bss_conf.basic_rates);
2018 changed |= BSS_CHANGED_BASIC_RATES;
2019 }
2020
2021 if (params->ap_isolate >= 0) {
2022 if (params->ap_isolate)
2023 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2024 else
2025 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2026 }
2027
2028 if (params->ht_opmode >= 0) {
2029 sdata->vif.bss_conf.ht_operation_mode =
2030 (u16) params->ht_opmode;
2031 changed |= BSS_CHANGED_HT;
2032 }
2033
2034 if (params->p2p_ctwindow >= 0) {
2035 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2036 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2037 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2038 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2039 changed |= BSS_CHANGED_P2P_PS;
2040 }
2041
2042 if (params->p2p_opp_ps > 0) {
2043 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2044 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2045 changed |= BSS_CHANGED_P2P_PS;
2046 } else if (params->p2p_opp_ps == 0) {
2047 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2048 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
2049 changed |= BSS_CHANGED_P2P_PS;
2050 }
2051
2052 ieee80211_bss_info_change_notify(sdata, changed);
2053
2054 return 0;
2055}
2056
2057static int ieee80211_set_txq_params(struct wiphy *wiphy,
2058 struct net_device *dev,
2059 struct ieee80211_txq_params *params)
2060{
2061 struct ieee80211_local *local = wiphy_priv(wiphy);
2062 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2063 struct ieee80211_tx_queue_params p;
2064
2065 if (!local->ops->conf_tx)
2066 return -EOPNOTSUPP;
2067
2068 if (local->hw.queues < IEEE80211_NUM_ACS)
2069 return -EOPNOTSUPP;
2070
2071 memset(&p, 0, sizeof(p));
2072 p.aifs = params->aifs;
2073 p.cw_max = params->cwmax;
2074 p.cw_min = params->cwmin;
2075 p.txop = params->txop;
2076
2077 /*
2078 * Setting tx queue params disables u-apsd because it's only
2079 * called in master mode.
2080 */
2081 p.uapsd = false;
2082
2083 sdata->tx_conf[params->ac] = p;
2084 if (drv_conf_tx(local, sdata, params->ac, &p)) {
2085 wiphy_debug(local->hw.wiphy,
2086 "failed to set TX queue parameters for AC %d\n",
2087 params->ac);
2088 return -EINVAL;
2089 }
2090
2091 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2092
2093 return 0;
2094}
2095
2096#ifdef CONFIG_PM
2097static int ieee80211_suspend(struct wiphy *wiphy,
2098 struct cfg80211_wowlan *wowlan)
2099{
2100 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
2101}
2102
2103static int ieee80211_resume(struct wiphy *wiphy)
2104{
2105 return __ieee80211_resume(wiphy_priv(wiphy));
2106}
2107#else
2108#define ieee80211_suspend NULL
2109#define ieee80211_resume NULL
2110#endif
2111
2112static int ieee80211_scan(struct wiphy *wiphy,
2113 struct cfg80211_scan_request *req)
2114{
2115 struct ieee80211_sub_if_data *sdata;
2116
2117 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2118
2119 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2120 case NL80211_IFTYPE_STATION:
2121 case NL80211_IFTYPE_ADHOC:
2122 case NL80211_IFTYPE_MESH_POINT:
2123 case NL80211_IFTYPE_P2P_CLIENT:
2124 case NL80211_IFTYPE_P2P_DEVICE:
2125 break;
2126 case NL80211_IFTYPE_P2P_GO:
2127 if (sdata->local->ops->hw_scan)
2128 break;
2129 /*
2130 * FIXME: implement NoA while scanning in software,
2131 * for now fall through to allow scanning only when
2132 * beaconing hasn't been configured yet
2133 */
2134 case NL80211_IFTYPE_AP:
2135 /*
2136 * If the scan has been forced (and the driver supports
2137 * forcing), don't care about being beaconing already.
2138 * This will create problems to the attached stations (e.g. all
2139 * the frames sent while scanning on other channel will be
2140 * lost)
2141 */
2142 if (sdata->u.ap.beacon &&
2143 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2144 !(req->flags & NL80211_SCAN_FLAG_AP)))
2145 return -EOPNOTSUPP;
2146 break;
2147 default:
2148 return -EOPNOTSUPP;
2149 }
2150
2151 return ieee80211_request_scan(sdata, req);
2152}
2153
2154static int
2155ieee80211_sched_scan_start(struct wiphy *wiphy,
2156 struct net_device *dev,
2157 struct cfg80211_sched_scan_request *req)
2158{
2159 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2160
2161 if (!sdata->local->ops->sched_scan_start)
2162 return -EOPNOTSUPP;
2163
2164 return ieee80211_request_sched_scan_start(sdata, req);
2165}
2166
2167static int
2168ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
2169{
2170 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2171
2172 if (!sdata->local->ops->sched_scan_stop)
2173 return -EOPNOTSUPP;
2174
2175 return ieee80211_request_sched_scan_stop(sdata);
2176}
2177
2178static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2179 struct cfg80211_auth_request *req)
2180{
2181 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2182}
2183
2184static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2185 struct cfg80211_assoc_request *req)
2186{
2187 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2188}
2189
2190static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
2191 struct cfg80211_deauth_request *req)
2192{
2193 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
2194}
2195
2196static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
2197 struct cfg80211_disassoc_request *req)
2198{
2199 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
2200}
2201
2202static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2203 struct cfg80211_ibss_params *params)
2204{
2205 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
2206}
2207
2208static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2209{
2210 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2211}
2212
2213static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2214 int rate[IEEE80211_NUM_BANDS])
2215{
2216 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2217
2218 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2219 sizeof(int) * IEEE80211_NUM_BANDS);
2220
2221 return 0;
2222}
2223
2224static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2225{
2226 struct ieee80211_local *local = wiphy_priv(wiphy);
2227 int err;
2228
2229 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2230 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2231
2232 if (err)
2233 return err;
2234 }
2235
2236 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2237 err = drv_set_coverage_class(local, wiphy->coverage_class);
2238
2239 if (err)
2240 return err;
2241 }
2242
2243 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2244 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2245
2246 if (err)
2247 return err;
2248 }
2249
2250 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2251 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2252 return -EINVAL;
2253 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2254 }
2255 if (changed & WIPHY_PARAM_RETRY_LONG) {
2256 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2257 return -EINVAL;
2258 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2259 }
2260 if (changed &
2261 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2262 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2263
2264 return 0;
2265}
2266
2267static int ieee80211_set_tx_power(struct wiphy *wiphy,
2268 struct wireless_dev *wdev,
2269 enum nl80211_tx_power_setting type, int mbm)
2270{
2271 struct ieee80211_local *local = wiphy_priv(wiphy);
2272 struct ieee80211_sub_if_data *sdata;
2273
2274 if (wdev) {
2275 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2276
2277 switch (type) {
2278 case NL80211_TX_POWER_AUTOMATIC:
2279 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2280 break;
2281 case NL80211_TX_POWER_LIMITED:
2282 case NL80211_TX_POWER_FIXED:
2283 if (mbm < 0 || (mbm % 100))
2284 return -EOPNOTSUPP;
2285 sdata->user_power_level = MBM_TO_DBM(mbm);
2286 break;
2287 }
2288
2289 ieee80211_recalc_txpower(sdata);
2290
2291 return 0;
2292 }
2293
2294 switch (type) {
2295 case NL80211_TX_POWER_AUTOMATIC:
2296 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2297 break;
2298 case NL80211_TX_POWER_LIMITED:
2299 case NL80211_TX_POWER_FIXED:
2300 if (mbm < 0 || (mbm % 100))
2301 return -EOPNOTSUPP;
2302 local->user_power_level = MBM_TO_DBM(mbm);
2303 break;
2304 }
2305
2306 mutex_lock(&local->iflist_mtx);
2307 list_for_each_entry(sdata, &local->interfaces, list)
2308 sdata->user_power_level = local->user_power_level;
2309 list_for_each_entry(sdata, &local->interfaces, list)
2310 ieee80211_recalc_txpower(sdata);
2311 mutex_unlock(&local->iflist_mtx);
2312
2313 return 0;
2314}
2315
2316static int ieee80211_get_tx_power(struct wiphy *wiphy,
2317 struct wireless_dev *wdev,
2318 int *dbm)
2319{
2320 struct ieee80211_local *local = wiphy_priv(wiphy);
2321 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2322
2323 if (!local->use_chanctx)
2324 *dbm = local->hw.conf.power_level;
2325 else
2326 *dbm = sdata->vif.bss_conf.txpower;
2327
2328 return 0;
2329}
2330
2331static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2332 const u8 *addr)
2333{
2334 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2335
2336 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2337
2338 return 0;
2339}
2340
2341static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2342{
2343 struct ieee80211_local *local = wiphy_priv(wiphy);
2344
2345 drv_rfkill_poll(local);
2346}
2347
2348#ifdef CONFIG_NL80211_TESTMODE
2349static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2350 struct wireless_dev *wdev,
2351 void *data, int len)
2352{
2353 struct ieee80211_local *local = wiphy_priv(wiphy);
2354 struct ieee80211_vif *vif = NULL;
2355
2356 if (!local->ops->testmode_cmd)
2357 return -EOPNOTSUPP;
2358
2359 if (wdev) {
2360 struct ieee80211_sub_if_data *sdata;
2361
2362 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2363 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2364 vif = &sdata->vif;
2365 }
2366
2367 return local->ops->testmode_cmd(&local->hw, vif, data, len);
2368}
2369
2370static int ieee80211_testmode_dump(struct wiphy *wiphy,
2371 struct sk_buff *skb,
2372 struct netlink_callback *cb,
2373 void *data, int len)
2374{
2375 struct ieee80211_local *local = wiphy_priv(wiphy);
2376
2377 if (!local->ops->testmode_dump)
2378 return -EOPNOTSUPP;
2379
2380 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2381}
2382#endif
2383
2384int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2385 enum ieee80211_smps_mode smps_mode)
2386{
2387 struct sta_info *sta;
2388 enum ieee80211_smps_mode old_req;
2389 int i;
2390
2391 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2392 return -EINVAL;
2393
2394 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2395 return 0;
2396
2397 old_req = sdata->u.ap.req_smps;
2398 sdata->u.ap.req_smps = smps_mode;
2399
2400 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2401 if (old_req == smps_mode ||
2402 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2403 return 0;
2404
2405 /* If no associated stations, there's no need to do anything */
2406 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2407 sdata->smps_mode = smps_mode;
2408 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2409 return 0;
2410 }
2411
2412 ht_dbg(sdata,
2413 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2414 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2415
2416 mutex_lock(&sdata->local->sta_mtx);
2417 for (i = 0; i < STA_HASH_SIZE; i++) {
2418 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2419 lockdep_is_held(&sdata->local->sta_mtx));
2420 sta;
2421 sta = rcu_dereference_protected(sta->hnext,
2422 lockdep_is_held(&sdata->local->sta_mtx))) {
2423 /*
2424 * Only stations associated to our AP and
2425 * associated VLANs
2426 */
2427 if (sta->sdata->bss != &sdata->u.ap)
2428 continue;
2429
2430 /* This station doesn't support MIMO - skip it */
2431 if (sta_info_tx_streams(sta) == 1)
2432 continue;
2433
2434 /*
2435 * Don't wake up a STA just to send the action frame
2436 * unless we are getting more restrictive.
2437 */
2438 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2439 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2440 smps_mode)) {
2441 ht_dbg(sdata,
2442 "Won't send SMPS to sleeping STA %pM\n",
2443 sta->sta.addr);
2444 continue;
2445 }
2446
2447 /*
2448 * If the STA is not authorized, wait until it gets
2449 * authorized and the action frame will be sent then.
2450 */
2451 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2452 continue;
2453
2454 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2455 ieee80211_send_smps_action(sdata, smps_mode,
2456 sta->sta.addr,
2457 sdata->vif.bss_conf.bssid);
2458 }
2459 }
2460 mutex_unlock(&sdata->local->sta_mtx);
2461
2462 sdata->smps_mode = smps_mode;
2463 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2464
2465 return 0;
2466}
2467
2468int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2469 enum ieee80211_smps_mode smps_mode)
2470{
2471 const u8 *ap;
2472 enum ieee80211_smps_mode old_req;
2473 int err;
2474
2475 lockdep_assert_held(&sdata->wdev.mtx);
2476
2477 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2478 return -EINVAL;
2479
2480 old_req = sdata->u.mgd.req_smps;
2481 sdata->u.mgd.req_smps = smps_mode;
2482
2483 if (old_req == smps_mode &&
2484 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2485 return 0;
2486
2487 /*
2488 * If not associated, or current association is not an HT
2489 * association, there's no need to do anything, just store
2490 * the new value until we associate.
2491 */
2492 if (!sdata->u.mgd.associated ||
2493 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2494 return 0;
2495
2496 ap = sdata->u.mgd.associated->bssid;
2497
2498 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2499 if (sdata->u.mgd.powersave)
2500 smps_mode = IEEE80211_SMPS_DYNAMIC;
2501 else
2502 smps_mode = IEEE80211_SMPS_OFF;
2503 }
2504
2505 /* send SM PS frame to AP */
2506 err = ieee80211_send_smps_action(sdata, smps_mode,
2507 ap, ap);
2508 if (err)
2509 sdata->u.mgd.req_smps = old_req;
2510
2511 return err;
2512}
2513
2514static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2515 bool enabled, int timeout)
2516{
2517 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2518 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2519
2520 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2521 return -EOPNOTSUPP;
2522
2523 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2524 return -EOPNOTSUPP;
2525
2526 if (enabled == sdata->u.mgd.powersave &&
2527 timeout == local->dynamic_ps_forced_timeout)
2528 return 0;
2529
2530 sdata->u.mgd.powersave = enabled;
2531 local->dynamic_ps_forced_timeout = timeout;
2532
2533 /* no change, but if automatic follow powersave */
2534 sdata_lock(sdata);
2535 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
2536 sdata_unlock(sdata);
2537
2538 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2539 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2540
2541 ieee80211_recalc_ps(local, -1);
2542 ieee80211_recalc_ps_vif(sdata);
2543
2544 return 0;
2545}
2546
2547static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2548 struct net_device *dev,
2549 s32 rssi_thold, u32 rssi_hyst)
2550{
2551 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2552 struct ieee80211_vif *vif = &sdata->vif;
2553 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2554
2555 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2556 rssi_hyst == bss_conf->cqm_rssi_hyst)
2557 return 0;
2558
2559 bss_conf->cqm_rssi_thold = rssi_thold;
2560 bss_conf->cqm_rssi_hyst = rssi_hyst;
2561
2562 /* tell the driver upon association, unless already associated */
2563 if (sdata->u.mgd.associated &&
2564 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2565 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2566
2567 return 0;
2568}
2569
2570static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2571 struct net_device *dev,
2572 const u8 *addr,
2573 const struct cfg80211_bitrate_mask *mask)
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 int i, ret;
2578
2579 if (!ieee80211_sdata_running(sdata))
2580 return -ENETDOWN;
2581
2582 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2583 ret = drv_set_bitrate_mask(local, sdata, mask);
2584 if (ret)
2585 return ret;
2586 }
2587
2588 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2589 struct ieee80211_supported_band *sband = wiphy->bands[i];
2590 int j;
2591
2592 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2593 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2594 sizeof(mask->control[i].ht_mcs));
2595
2596 sdata->rc_has_mcs_mask[i] = false;
2597 if (!sband)
2598 continue;
2599
2600 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2601 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2602 sdata->rc_has_mcs_mask[i] = true;
2603 break;
2604 }
2605 }
2606
2607 return 0;
2608}
2609
2610static int ieee80211_start_roc_work(struct ieee80211_local *local,
2611 struct ieee80211_sub_if_data *sdata,
2612 struct ieee80211_channel *channel,
2613 unsigned int duration, u64 *cookie,
2614 struct sk_buff *txskb,
2615 enum ieee80211_roc_type type)
2616{
2617 struct ieee80211_roc_work *roc, *tmp;
2618 bool queued = false;
2619 int ret;
2620
2621 lockdep_assert_held(&local->mtx);
2622
2623 if (local->use_chanctx && !local->ops->remain_on_channel)
2624 return -EOPNOTSUPP;
2625
2626 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2627 if (!roc)
2628 return -ENOMEM;
2629
2630 roc->chan = channel;
2631 roc->duration = duration;
2632 roc->req_duration = duration;
2633 roc->frame = txskb;
2634 roc->type = type;
2635 roc->mgmt_tx_cookie = (unsigned long)txskb;
2636 roc->sdata = sdata;
2637 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2638 INIT_LIST_HEAD(&roc->dependents);
2639
2640 /* if there's one pending or we're scanning, queue this one */
2641 if (!list_empty(&local->roc_list) ||
2642 local->scanning || local->radar_detect_enabled)
2643 goto out_check_combine;
2644
2645 /* if not HW assist, just queue & schedule work */
2646 if (!local->ops->remain_on_channel) {
2647 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2648 goto out_queue;
2649 }
2650
2651 /* otherwise actually kick it off here (for error handling) */
2652
2653 /*
2654 * If the duration is zero, then the driver
2655 * wouldn't actually do anything. Set it to
2656 * 10 for now.
2657 *
2658 * TODO: cancel the off-channel operation
2659 * when we get the SKB's TX status and
2660 * the wait time was zero before.
2661 */
2662 if (!duration)
2663 duration = 10;
2664
2665 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
2666 if (ret) {
2667 kfree(roc);
2668 return ret;
2669 }
2670
2671 roc->started = true;
2672 goto out_queue;
2673
2674 out_check_combine:
2675 list_for_each_entry(tmp, &local->roc_list, list) {
2676 if (tmp->chan != channel || tmp->sdata != sdata)
2677 continue;
2678
2679 /*
2680 * Extend this ROC if possible:
2681 *
2682 * If it hasn't started yet, just increase the duration
2683 * and add the new one to the list of dependents.
2684 * If the type of the new ROC has higher priority, modify the
2685 * type of the previous one to match that of the new one.
2686 */
2687 if (!tmp->started) {
2688 list_add_tail(&roc->list, &tmp->dependents);
2689 tmp->duration = max(tmp->duration, roc->duration);
2690 tmp->type = max(tmp->type, roc->type);
2691 queued = true;
2692 break;
2693 }
2694
2695 /* If it has already started, it's more difficult ... */
2696 if (local->ops->remain_on_channel) {
2697 unsigned long j = jiffies;
2698
2699 /*
2700 * In the offloaded ROC case, if it hasn't begun, add
2701 * this new one to the dependent list to be handled
2702 * when the master one begins. If it has begun,
2703 * check that there's still a minimum time left and
2704 * if so, start this one, transmitting the frame, but
2705 * add it to the list directly after this one with
2706 * a reduced time so we'll ask the driver to execute
2707 * it right after finishing the previous one, in the
2708 * hope that it'll also be executed right afterwards,
2709 * effectively extending the old one.
2710 * If there's no minimum time left, just add it to the
2711 * normal list.
2712 * TODO: the ROC type is ignored here, assuming that it
2713 * is better to immediately use the current ROC.
2714 */
2715 if (!tmp->hw_begun) {
2716 list_add_tail(&roc->list, &tmp->dependents);
2717 queued = true;
2718 break;
2719 }
2720
2721 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2722 tmp->hw_start_time +
2723 msecs_to_jiffies(tmp->duration))) {
2724 int new_dur;
2725
2726 ieee80211_handle_roc_started(roc);
2727
2728 new_dur = roc->duration -
2729 jiffies_to_msecs(tmp->hw_start_time +
2730 msecs_to_jiffies(
2731 tmp->duration) -
2732 j);
2733
2734 if (new_dur > 0) {
2735 /* add right after tmp */
2736 list_add(&roc->list, &tmp->list);
2737 } else {
2738 list_add_tail(&roc->list,
2739 &tmp->dependents);
2740 }
2741 queued = true;
2742 }
2743 } else if (del_timer_sync(&tmp->work.timer)) {
2744 unsigned long new_end;
2745
2746 /*
2747 * In the software ROC case, cancel the timer, if
2748 * that fails then the finish work is already
2749 * queued/pending and thus we queue the new ROC
2750 * normally, if that succeeds then we can extend
2751 * the timer duration and TX the frame (if any.)
2752 */
2753
2754 list_add_tail(&roc->list, &tmp->dependents);
2755 queued = true;
2756
2757 new_end = jiffies + msecs_to_jiffies(roc->duration);
2758
2759 /* ok, it was started & we canceled timer */
2760 if (time_after(new_end, tmp->work.timer.expires))
2761 mod_timer(&tmp->work.timer, new_end);
2762 else
2763 add_timer(&tmp->work.timer);
2764
2765 ieee80211_handle_roc_started(roc);
2766 }
2767 break;
2768 }
2769
2770 out_queue:
2771 if (!queued)
2772 list_add_tail(&roc->list, &local->roc_list);
2773
2774 /*
2775 * cookie is either the roc cookie (for normal roc)
2776 * or the SKB (for mgmt TX)
2777 */
2778 if (!txskb) {
2779 /* local->mtx protects this */
2780 local->roc_cookie_counter++;
2781 roc->cookie = local->roc_cookie_counter;
2782 /* wow, you wrapped 64 bits ... more likely a bug */
2783 if (WARN_ON(roc->cookie == 0)) {
2784 roc->cookie = 1;
2785 local->roc_cookie_counter++;
2786 }
2787 *cookie = roc->cookie;
2788 } else {
2789 *cookie = (unsigned long)txskb;
2790 }
2791
2792 return 0;
2793}
2794
2795static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2796 struct wireless_dev *wdev,
2797 struct ieee80211_channel *chan,
2798 unsigned int duration,
2799 u64 *cookie)
2800{
2801 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2802 struct ieee80211_local *local = sdata->local;
2803 int ret;
2804
2805 mutex_lock(&local->mtx);
2806 ret = ieee80211_start_roc_work(local, sdata, chan,
2807 duration, cookie, NULL,
2808 IEEE80211_ROC_TYPE_NORMAL);
2809 mutex_unlock(&local->mtx);
2810
2811 return ret;
2812}
2813
2814static int ieee80211_cancel_roc(struct ieee80211_local *local,
2815 u64 cookie, bool mgmt_tx)
2816{
2817 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2818 int ret;
2819
2820 mutex_lock(&local->mtx);
2821 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2822 struct ieee80211_roc_work *dep, *tmp2;
2823
2824 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2825 if (!mgmt_tx && dep->cookie != cookie)
2826 continue;
2827 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2828 continue;
2829 /* found dependent item -- just remove it */
2830 list_del(&dep->list);
2831 mutex_unlock(&local->mtx);
2832
2833 ieee80211_roc_notify_destroy(dep, true);
2834 return 0;
2835 }
2836
2837 if (!mgmt_tx && roc->cookie != cookie)
2838 continue;
2839 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2840 continue;
2841
2842 found = roc;
2843 break;
2844 }
2845
2846 if (!found) {
2847 mutex_unlock(&local->mtx);
2848 return -ENOENT;
2849 }
2850
2851 /*
2852 * We found the item to cancel, so do that. Note that it
2853 * may have dependents, which we also cancel (and send
2854 * the expired signal for.) Not doing so would be quite
2855 * tricky here, but we may need to fix it later.
2856 */
2857
2858 if (local->ops->remain_on_channel) {
2859 if (found->started) {
2860 ret = drv_cancel_remain_on_channel(local);
2861 if (WARN_ON_ONCE(ret)) {
2862 mutex_unlock(&local->mtx);
2863 return ret;
2864 }
2865 }
2866
2867 list_del(&found->list);
2868
2869 if (found->started)
2870 ieee80211_start_next_roc(local);
2871 mutex_unlock(&local->mtx);
2872
2873 ieee80211_roc_notify_destroy(found, true);
2874 } else {
2875 /* work may be pending so use it all the time */
2876 found->abort = true;
2877 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2878
2879 mutex_unlock(&local->mtx);
2880
2881 /* work will clean up etc */
2882 flush_delayed_work(&found->work);
2883 WARN_ON(!found->to_be_freed);
2884 kfree(found);
2885 }
2886
2887 return 0;
2888}
2889
2890static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2891 struct wireless_dev *wdev,
2892 u64 cookie)
2893{
2894 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2895 struct ieee80211_local *local = sdata->local;
2896
2897 return ieee80211_cancel_roc(local, cookie, false);
2898}
2899
2900static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2901 struct net_device *dev,
2902 struct cfg80211_chan_def *chandef)
2903{
2904 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2905 struct ieee80211_local *local = sdata->local;
2906 unsigned long timeout;
2907 int err;
2908
2909 mutex_lock(&local->mtx);
2910 if (!list_empty(&local->roc_list) || local->scanning) {
2911 err = -EBUSY;
2912 goto out_unlock;
2913 }
2914
2915 /* whatever, but channel contexts should not complain about that one */
2916 sdata->smps_mode = IEEE80211_SMPS_OFF;
2917 sdata->needed_rx_chains = local->rx_chains;
2918 sdata->radar_required = true;
2919
2920 err = ieee80211_vif_use_channel(sdata, chandef,
2921 IEEE80211_CHANCTX_SHARED);
2922 if (err)
2923 goto out_unlock;
2924
2925 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2926 ieee80211_queue_delayed_work(&sdata->local->hw,
2927 &sdata->dfs_cac_timer_work, timeout);
2928
2929 out_unlock:
2930 mutex_unlock(&local->mtx);
2931 return err;
2932}
2933
2934static struct cfg80211_beacon_data *
2935cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2936{
2937 struct cfg80211_beacon_data *new_beacon;
2938 u8 *pos;
2939 int len;
2940
2941 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2942 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2943 beacon->probe_resp_len;
2944
2945 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2946 if (!new_beacon)
2947 return NULL;
2948
2949 pos = (u8 *)(new_beacon + 1);
2950 if (beacon->head_len) {
2951 new_beacon->head_len = beacon->head_len;
2952 new_beacon->head = pos;
2953 memcpy(pos, beacon->head, beacon->head_len);
2954 pos += beacon->head_len;
2955 }
2956 if (beacon->tail_len) {
2957 new_beacon->tail_len = beacon->tail_len;
2958 new_beacon->tail = pos;
2959 memcpy(pos, beacon->tail, beacon->tail_len);
2960 pos += beacon->tail_len;
2961 }
2962 if (beacon->beacon_ies_len) {
2963 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2964 new_beacon->beacon_ies = pos;
2965 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2966 pos += beacon->beacon_ies_len;
2967 }
2968 if (beacon->proberesp_ies_len) {
2969 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2970 new_beacon->proberesp_ies = pos;
2971 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2972 pos += beacon->proberesp_ies_len;
2973 }
2974 if (beacon->assocresp_ies_len) {
2975 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2976 new_beacon->assocresp_ies = pos;
2977 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2978 pos += beacon->assocresp_ies_len;
2979 }
2980 if (beacon->probe_resp_len) {
2981 new_beacon->probe_resp_len = beacon->probe_resp_len;
2982 beacon->probe_resp = pos;
2983 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2984 pos += beacon->probe_resp_len;
2985 }
2986
2987 return new_beacon;
2988}
2989
2990void ieee80211_csa_finalize_work(struct work_struct *work)
2991{
2992 struct ieee80211_sub_if_data *sdata =
2993 container_of(work, struct ieee80211_sub_if_data,
2994 csa_finalize_work);
2995 struct ieee80211_local *local = sdata->local;
2996 int err, changed = 0;
2997
2998 sdata_lock(sdata);
2999 /* AP might have been stopped while waiting for the lock. */
3000 if (!sdata->vif.csa_active)
3001 goto unlock;
3002
3003 if (!ieee80211_sdata_running(sdata))
3004 goto unlock;
3005
3006 sdata->radar_required = sdata->csa_radar_required;
3007 mutex_lock(&local->mtx);
3008 err = ieee80211_vif_change_channel(sdata, &changed);
3009 mutex_unlock(&local->mtx);
3010 if (WARN_ON(err < 0))
3011 goto unlock;
3012
3013 if (!local->use_chanctx) {
3014 local->_oper_chandef = sdata->csa_chandef;
3015 ieee80211_hw_config(local, 0);
3016 }
3017
3018 ieee80211_bss_info_change_notify(sdata, changed);
3019
3020 sdata->vif.csa_active = false;
3021 switch (sdata->vif.type) {
3022 case NL80211_IFTYPE_AP:
3023 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3024 if (err < 0)
3025 goto unlock;
3026
3027 changed |= err;
3028 kfree(sdata->u.ap.next_beacon);
3029 sdata->u.ap.next_beacon = NULL;
3030
3031 ieee80211_bss_info_change_notify(sdata, err);
3032 break;
3033 case NL80211_IFTYPE_ADHOC:
3034 ieee80211_ibss_finish_csa(sdata);
3035 break;
3036#ifdef CONFIG_MAC80211_MESH
3037 case NL80211_IFTYPE_MESH_POINT:
3038 err = ieee80211_mesh_finish_csa(sdata);
3039 if (err < 0)
3040 goto unlock;
3041 break;
3042#endif
3043 default:
3044 WARN_ON(1);
3045 goto unlock;
3046 }
3047
3048 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3049 IEEE80211_MAX_QUEUE_MAP,
3050 IEEE80211_QUEUE_STOP_REASON_CSA);
3051
3052 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3053
3054unlock:
3055 sdata_unlock(sdata);
3056}
3057
3058int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3059 struct cfg80211_csa_settings *params)
3060{
3061 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3062 struct ieee80211_local *local = sdata->local;
3063 struct ieee80211_chanctx_conf *chanctx_conf;
3064 struct ieee80211_chanctx *chanctx;
3065 struct ieee80211_if_mesh __maybe_unused *ifmsh;
3066 int err, num_chanctx;
3067
3068 lockdep_assert_held(&sdata->wdev.mtx);
3069
3070 if (!list_empty(&local->roc_list) || local->scanning)
3071 return -EBUSY;
3072
3073 if (sdata->wdev.cac_started)
3074 return -EBUSY;
3075
3076 if (cfg80211_chandef_identical(&params->chandef,
3077 &sdata->vif.bss_conf.chandef))
3078 return -EINVAL;
3079
3080 rcu_read_lock();
3081 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3082 if (!chanctx_conf) {
3083 rcu_read_unlock();
3084 return -EBUSY;
3085 }
3086
3087 /* don't handle for multi-VIF cases */
3088 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
3089 if (chanctx->refcount > 1) {
3090 rcu_read_unlock();
3091 return -EBUSY;
3092 }
3093 num_chanctx = 0;
3094 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3095 num_chanctx++;
3096 rcu_read_unlock();
3097
3098 if (num_chanctx > 1)
3099 return -EBUSY;
3100
3101 /* don't allow another channel switch if one is already active. */
3102 if (sdata->vif.csa_active)
3103 return -EBUSY;
3104
3105 switch (sdata->vif.type) {
3106 case NL80211_IFTYPE_AP:
3107 sdata->csa_counter_offset_beacon =
3108 params->counter_offset_beacon;
3109 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3110 sdata->u.ap.next_beacon =
3111 cfg80211_beacon_dup(&params->beacon_after);
3112 if (!sdata->u.ap.next_beacon)
3113 return -ENOMEM;
3114
3115 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3116 if (err < 0) {
3117 kfree(sdata->u.ap.next_beacon);
3118 return err;
3119 }
3120 break;
3121 case NL80211_IFTYPE_ADHOC:
3122 if (!sdata->vif.bss_conf.ibss_joined)
3123 return -EINVAL;
3124
3125 if (params->chandef.width != sdata->u.ibss.chandef.width)
3126 return -EINVAL;
3127
3128 switch (params->chandef.width) {
3129 case NL80211_CHAN_WIDTH_40:
3130 if (cfg80211_get_chandef_type(&params->chandef) !=
3131 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3132 return -EINVAL;
3133 case NL80211_CHAN_WIDTH_5:
3134 case NL80211_CHAN_WIDTH_10:
3135 case NL80211_CHAN_WIDTH_20_NOHT:
3136 case NL80211_CHAN_WIDTH_20:
3137 break;
3138 default:
3139 return -EINVAL;
3140 }
3141
3142 /* changes into another band are not supported */
3143 if (sdata->u.ibss.chandef.chan->band !=
3144 params->chandef.chan->band)
3145 return -EINVAL;
3146
3147 err = ieee80211_ibss_csa_beacon(sdata, params);
3148 if (err < 0)
3149 return err;
3150 break;
3151#ifdef CONFIG_MAC80211_MESH
3152 case NL80211_IFTYPE_MESH_POINT:
3153 ifmsh = &sdata->u.mesh;
3154
3155 if (!ifmsh->mesh_id)
3156 return -EINVAL;
3157
3158 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3159 return -EINVAL;
3160
3161 /* changes into another band are not supported */
3162 if (sdata->vif.bss_conf.chandef.chan->band !=
3163 params->chandef.chan->band)
3164 return -EINVAL;
3165
3166 ifmsh->chsw_init = true;
3167 if (!ifmsh->pre_value)
3168 ifmsh->pre_value = 1;
3169 else
3170 ifmsh->pre_value++;
3171
3172 err = ieee80211_mesh_csa_beacon(sdata, params, true);
3173 if (err < 0) {
3174 ifmsh->chsw_init = false;
3175 return err;
3176 }
3177 break;
3178#endif
3179 default:
3180 return -EOPNOTSUPP;
3181 }
3182
3183 sdata->csa_radar_required = params->radar_required;
3184
3185 if (params->block_tx)
3186 ieee80211_stop_queues_by_reason(&local->hw,
3187 IEEE80211_MAX_QUEUE_MAP,
3188 IEEE80211_QUEUE_STOP_REASON_CSA);
3189
3190 sdata->csa_chandef = params->chandef;
3191 sdata->vif.csa_active = true;
3192
3193 ieee80211_bss_info_change_notify(sdata, err);
3194 drv_channel_switch_beacon(sdata, &params->chandef);
3195
3196 return 0;
3197}
3198
3199static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
3200 struct cfg80211_mgmt_tx_params *params,
3201 u64 *cookie)
3202{
3203 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3204 struct ieee80211_local *local = sdata->local;
3205 struct sk_buff *skb;
3206 struct sta_info *sta;
3207 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
3208 bool need_offchan = false;
3209 u32 flags;
3210 int ret;
3211
3212 if (params->dont_wait_for_ack)
3213 flags = IEEE80211_TX_CTL_NO_ACK;
3214 else
3215 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3216 IEEE80211_TX_CTL_REQ_TX_STATUS;
3217
3218 if (params->no_cck)
3219 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3220
3221 switch (sdata->vif.type) {
3222 case NL80211_IFTYPE_ADHOC:
3223 if (!sdata->vif.bss_conf.ibss_joined)
3224 need_offchan = true;
3225 /* fall through */
3226#ifdef CONFIG_MAC80211_MESH
3227 case NL80211_IFTYPE_MESH_POINT:
3228 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3229 !sdata->u.mesh.mesh_id_len)
3230 need_offchan = true;
3231 /* fall through */
3232#endif
3233 case NL80211_IFTYPE_AP:
3234 case NL80211_IFTYPE_AP_VLAN:
3235 case NL80211_IFTYPE_P2P_GO:
3236 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3237 !ieee80211_vif_is_mesh(&sdata->vif) &&
3238 !rcu_access_pointer(sdata->bss->beacon))
3239 need_offchan = true;
3240 if (!ieee80211_is_action(mgmt->frame_control) ||
3241 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
3242 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3243 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
3244 break;
3245 rcu_read_lock();
3246 sta = sta_info_get(sdata, mgmt->da);
3247 rcu_read_unlock();
3248 if (!sta)
3249 return -ENOLINK;
3250 break;
3251 case NL80211_IFTYPE_STATION:
3252 case NL80211_IFTYPE_P2P_CLIENT:
3253 if (!sdata->u.mgd.associated)
3254 need_offchan = true;
3255 break;
3256 case NL80211_IFTYPE_P2P_DEVICE:
3257 need_offchan = true;
3258 break;
3259 default:
3260 return -EOPNOTSUPP;
3261 }
3262
3263 /* configurations requiring offchan cannot work if no channel has been
3264 * specified
3265 */
3266 if (need_offchan && !params->chan)
3267 return -EINVAL;
3268
3269 mutex_lock(&local->mtx);
3270
3271 /* Check if the operating channel is the requested channel */
3272 if (!need_offchan) {
3273 struct ieee80211_chanctx_conf *chanctx_conf;
3274
3275 rcu_read_lock();
3276 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3277
3278 if (chanctx_conf) {
3279 need_offchan = params->chan &&
3280 (params->chan !=
3281 chanctx_conf->def.chan);
3282 } else if (!params->chan) {
3283 ret = -EINVAL;
3284 rcu_read_unlock();
3285 goto out_unlock;
3286 } else {
3287 need_offchan = true;
3288 }
3289 rcu_read_unlock();
3290 }
3291
3292 if (need_offchan && !params->offchan) {
3293 ret = -EBUSY;
3294 goto out_unlock;
3295 }
3296
3297 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
3298 if (!skb) {
3299 ret = -ENOMEM;
3300 goto out_unlock;
3301 }
3302 skb_reserve(skb, local->hw.extra_tx_headroom);
3303
3304 memcpy(skb_put(skb, params->len), params->buf, params->len);
3305
3306 IEEE80211_SKB_CB(skb)->flags = flags;
3307
3308 skb->dev = sdata->dev;
3309
3310 if (!need_offchan) {
3311 *cookie = (unsigned long) skb;
3312 ieee80211_tx_skb(sdata, skb);
3313 ret = 0;
3314 goto out_unlock;
3315 }
3316
3317 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3318 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
3319 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3320 IEEE80211_SKB_CB(skb)->hw_queue =
3321 local->hw.offchannel_tx_hw_queue;
3322
3323 /* This will handle all kinds of coalescing and immediate TX */
3324 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3325 params->wait, cookie, skb,
3326 IEEE80211_ROC_TYPE_MGMT_TX);
3327 if (ret)
3328 kfree_skb(skb);
3329 out_unlock:
3330 mutex_unlock(&local->mtx);
3331 return ret;
3332}
3333
3334static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
3335 struct wireless_dev *wdev,
3336 u64 cookie)
3337{
3338 struct ieee80211_local *local = wiphy_priv(wiphy);
3339
3340 return ieee80211_cancel_roc(local, cookie, true);
3341}
3342
3343static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
3344 struct wireless_dev *wdev,
3345 u16 frame_type, bool reg)
3346{
3347 struct ieee80211_local *local = wiphy_priv(wiphy);
3348
3349 switch (frame_type) {
3350 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3351 if (reg)
3352 local->probe_req_reg++;
3353 else
3354 local->probe_req_reg--;
3355
3356 if (!local->open_count)
3357 break;
3358
3359 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3360 break;
3361 default:
3362 break;
3363 }
3364}
3365
3366static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3367{
3368 struct ieee80211_local *local = wiphy_priv(wiphy);
3369
3370 if (local->started)
3371 return -EOPNOTSUPP;
3372
3373 return drv_set_antenna(local, tx_ant, rx_ant);
3374}
3375
3376static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3377{
3378 struct ieee80211_local *local = wiphy_priv(wiphy);
3379
3380 return drv_get_antenna(local, tx_ant, rx_ant);
3381}
3382
3383static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3384{
3385 struct ieee80211_local *local = wiphy_priv(wiphy);
3386
3387 return drv_set_ringparam(local, tx, rx);
3388}
3389
3390static void ieee80211_get_ringparam(struct wiphy *wiphy,
3391 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3392{
3393 struct ieee80211_local *local = wiphy_priv(wiphy);
3394
3395 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3396}
3397
3398static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3399 struct net_device *dev,
3400 struct cfg80211_gtk_rekey_data *data)
3401{
3402 struct ieee80211_local *local = wiphy_priv(wiphy);
3403 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3404
3405 if (!local->ops->set_rekey_data)
3406 return -EOPNOTSUPP;
3407
3408 drv_set_rekey_data(local, sdata, data);
3409
3410 return 0;
3411}
3412
3413static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3414{
3415 u8 *pos = (void *)skb_put(skb, 7);
3416
3417 *pos++ = WLAN_EID_EXT_CAPABILITY;
3418 *pos++ = 5; /* len */
3419 *pos++ = 0x0;
3420 *pos++ = 0x0;
3421 *pos++ = 0x0;
3422 *pos++ = 0x0;
3423 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3424}
3425
3426static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3427{
3428 struct ieee80211_local *local = sdata->local;
3429 u16 capab;
3430
3431 capab = 0;
3432 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
3433 return capab;
3434
3435 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3436 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3437 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3438 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3439
3440 return capab;
3441}
3442
3443static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3444 u8 *peer, u8 *bssid)
3445{
3446 struct ieee80211_tdls_lnkie *lnkid;
3447
3448 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3449
3450 lnkid->ie_type = WLAN_EID_LINK_ID;
3451 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3452
3453 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3454 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3455 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3456}
3457
3458static int
3459ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3460 u8 *peer, u8 action_code, u8 dialog_token,
3461 u16 status_code, struct sk_buff *skb)
3462{
3463 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3464 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3465 struct ieee80211_tdls_data *tf;
3466
3467 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3468
3469 memcpy(tf->da, peer, ETH_ALEN);
3470 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3471 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3472 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3473
3474 switch (action_code) {
3475 case WLAN_TDLS_SETUP_REQUEST:
3476 tf->category = WLAN_CATEGORY_TDLS;
3477 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3478
3479 skb_put(skb, sizeof(tf->u.setup_req));
3480 tf->u.setup_req.dialog_token = dialog_token;
3481 tf->u.setup_req.capability =
3482 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3483
3484 ieee80211_add_srates_ie(sdata, skb, false, band);
3485 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3486 ieee80211_tdls_add_ext_capab(skb);
3487 break;
3488 case WLAN_TDLS_SETUP_RESPONSE:
3489 tf->category = WLAN_CATEGORY_TDLS;
3490 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3491
3492 skb_put(skb, sizeof(tf->u.setup_resp));
3493 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3494 tf->u.setup_resp.dialog_token = dialog_token;
3495 tf->u.setup_resp.capability =
3496 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3497
3498 ieee80211_add_srates_ie(sdata, skb, false, band);
3499 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3500 ieee80211_tdls_add_ext_capab(skb);
3501 break;
3502 case WLAN_TDLS_SETUP_CONFIRM:
3503 tf->category = WLAN_CATEGORY_TDLS;
3504 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3505
3506 skb_put(skb, sizeof(tf->u.setup_cfm));
3507 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3508 tf->u.setup_cfm.dialog_token = dialog_token;
3509 break;
3510 case WLAN_TDLS_TEARDOWN:
3511 tf->category = WLAN_CATEGORY_TDLS;
3512 tf->action_code = WLAN_TDLS_TEARDOWN;
3513
3514 skb_put(skb, sizeof(tf->u.teardown));
3515 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3516 break;
3517 case WLAN_TDLS_DISCOVERY_REQUEST:
3518 tf->category = WLAN_CATEGORY_TDLS;
3519 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3520
3521 skb_put(skb, sizeof(tf->u.discover_req));
3522 tf->u.discover_req.dialog_token = dialog_token;
3523 break;
3524 default:
3525 return -EINVAL;
3526 }
3527
3528 return 0;
3529}
3530
3531static int
3532ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3533 u8 *peer, u8 action_code, u8 dialog_token,
3534 u16 status_code, struct sk_buff *skb)
3535{
3536 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3537 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
3538 struct ieee80211_mgmt *mgmt;
3539
3540 mgmt = (void *)skb_put(skb, 24);
3541 memset(mgmt, 0, 24);
3542 memcpy(mgmt->da, peer, ETH_ALEN);
3543 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3544 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3545
3546 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3547 IEEE80211_STYPE_ACTION);
3548
3549 switch (action_code) {
3550 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3551 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3552 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3553 mgmt->u.action.u.tdls_discover_resp.action_code =
3554 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3555 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3556 dialog_token;
3557 mgmt->u.action.u.tdls_discover_resp.capability =
3558 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3559
3560 ieee80211_add_srates_ie(sdata, skb, false, band);
3561 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
3562 ieee80211_tdls_add_ext_capab(skb);
3563 break;
3564 default:
3565 return -EINVAL;
3566 }
3567
3568 return 0;
3569}
3570
3571static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3572 u8 *peer, u8 action_code, u8 dialog_token,
3573 u16 status_code, const u8 *extra_ies,
3574 size_t extra_ies_len)
3575{
3576 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3577 struct ieee80211_local *local = sdata->local;
3578 struct sk_buff *skb = NULL;
3579 bool send_direct;
3580 int ret;
3581
3582 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3583 return -ENOTSUPP;
3584
3585 /* make sure we are in managed mode, and associated */
3586 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3587 !sdata->u.mgd.associated)
3588 return -EINVAL;
3589
3590 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3591 action_code, peer);
3592
3593 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3594 max(sizeof(struct ieee80211_mgmt),
3595 sizeof(struct ieee80211_tdls_data)) +
3596 50 + /* supported rates */
3597 7 + /* ext capab */
3598 extra_ies_len +
3599 sizeof(struct ieee80211_tdls_lnkie));
3600 if (!skb)
3601 return -ENOMEM;
3602
3603 skb_reserve(skb, local->hw.extra_tx_headroom);
3604
3605 switch (action_code) {
3606 case WLAN_TDLS_SETUP_REQUEST:
3607 case WLAN_TDLS_SETUP_RESPONSE:
3608 case WLAN_TDLS_SETUP_CONFIRM:
3609 case WLAN_TDLS_TEARDOWN:
3610 case WLAN_TDLS_DISCOVERY_REQUEST:
3611 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3612 action_code, dialog_token,
3613 status_code, skb);
3614 send_direct = false;
3615 break;
3616 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3617 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3618 dialog_token, status_code,
3619 skb);
3620 send_direct = true;
3621 break;
3622 default:
3623 ret = -ENOTSUPP;
3624 break;
3625 }
3626
3627 if (ret < 0)
3628 goto fail;
3629
3630 if (extra_ies_len)
3631 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3632
3633 /* the TDLS link IE is always added last */
3634 switch (action_code) {
3635 case WLAN_TDLS_SETUP_REQUEST:
3636 case WLAN_TDLS_SETUP_CONFIRM:
3637 case WLAN_TDLS_TEARDOWN:
3638 case WLAN_TDLS_DISCOVERY_REQUEST:
3639 /* we are the initiator */
3640 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3641 sdata->u.mgd.bssid);
3642 break;
3643 case WLAN_TDLS_SETUP_RESPONSE:
3644 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3645 /* we are the responder */
3646 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3647 sdata->u.mgd.bssid);
3648 break;
3649 default:
3650 ret = -ENOTSUPP;
3651 goto fail;
3652 }
3653
3654 if (send_direct) {
3655 ieee80211_tx_skb(sdata, skb);
3656 return 0;
3657 }
3658
3659 /*
3660 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3661 * we should default to AC_VI.
3662 */
3663 switch (action_code) {
3664 case WLAN_TDLS_SETUP_REQUEST:
3665 case WLAN_TDLS_SETUP_RESPONSE:
3666 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3667 skb->priority = 2;
3668 break;
3669 default:
3670 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3671 skb->priority = 5;
3672 break;
3673 }
3674
3675 /* disable bottom halves when entering the Tx path */
3676 local_bh_disable();
3677 ret = ieee80211_subif_start_xmit(skb, dev);
3678 local_bh_enable();
3679
3680 return ret;
3681
3682fail:
3683 dev_kfree_skb(skb);
3684 return ret;
3685}
3686
3687static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3688 u8 *peer, enum nl80211_tdls_operation oper)
3689{
3690 struct sta_info *sta;
3691 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3692
3693 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3694 return -ENOTSUPP;
3695
3696 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3697 return -EINVAL;
3698
3699 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3700
3701 switch (oper) {
3702 case NL80211_TDLS_ENABLE_LINK:
3703 rcu_read_lock();
3704 sta = sta_info_get(sdata, peer);
3705 if (!sta) {
3706 rcu_read_unlock();
3707 return -ENOLINK;
3708 }
3709
3710 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3711 rcu_read_unlock();
3712 break;
3713 case NL80211_TDLS_DISABLE_LINK:
3714 return sta_info_destroy_addr(sdata, peer);
3715 case NL80211_TDLS_TEARDOWN:
3716 case NL80211_TDLS_SETUP:
3717 case NL80211_TDLS_DISCOVERY_REQ:
3718 /* We don't support in-driver setup/teardown/discovery */
3719 return -ENOTSUPP;
3720 default:
3721 return -ENOTSUPP;
3722 }
3723
3724 return 0;
3725}
3726
3727static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3728 const u8 *peer, u64 *cookie)
3729{
3730 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3731 struct ieee80211_local *local = sdata->local;
3732 struct ieee80211_qos_hdr *nullfunc;
3733 struct sk_buff *skb;
3734 int size = sizeof(*nullfunc);
3735 __le16 fc;
3736 bool qos;
3737 struct ieee80211_tx_info *info;
3738 struct sta_info *sta;
3739 struct ieee80211_chanctx_conf *chanctx_conf;
3740 enum ieee80211_band band;
3741
3742 rcu_read_lock();
3743 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3744 if (WARN_ON(!chanctx_conf)) {
3745 rcu_read_unlock();
3746 return -EINVAL;
3747 }
3748 band = chanctx_conf->def.chan->band;
3749 sta = sta_info_get_bss(sdata, peer);
3750 if (sta) {
3751 qos = test_sta_flag(sta, WLAN_STA_WME);
3752 } else {
3753 rcu_read_unlock();
3754 return -ENOLINK;
3755 }
3756
3757 if (qos) {
3758 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3759 IEEE80211_STYPE_QOS_NULLFUNC |
3760 IEEE80211_FCTL_FROMDS);
3761 } else {
3762 size -= 2;
3763 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3764 IEEE80211_STYPE_NULLFUNC |
3765 IEEE80211_FCTL_FROMDS);
3766 }
3767
3768 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3769 if (!skb) {
3770 rcu_read_unlock();
3771 return -ENOMEM;
3772 }
3773
3774 skb->dev = dev;
3775
3776 skb_reserve(skb, local->hw.extra_tx_headroom);
3777
3778 nullfunc = (void *) skb_put(skb, size);
3779 nullfunc->frame_control = fc;
3780 nullfunc->duration_id = 0;
3781 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3782 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3783 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3784 nullfunc->seq_ctrl = 0;
3785
3786 info = IEEE80211_SKB_CB(skb);
3787
3788 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3789 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3790
3791 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3792 skb->priority = 7;
3793 if (qos)
3794 nullfunc->qos_ctrl = cpu_to_le16(7);
3795
3796 local_bh_disable();
3797 ieee80211_xmit(sdata, skb, band);
3798 local_bh_enable();
3799 rcu_read_unlock();
3800
3801 *cookie = (unsigned long) skb;
3802 return 0;
3803}
3804
3805static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3806 struct wireless_dev *wdev,
3807 struct cfg80211_chan_def *chandef)
3808{
3809 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3810 struct ieee80211_local *local = wiphy_priv(wiphy);
3811 struct ieee80211_chanctx_conf *chanctx_conf;
3812 int ret = -ENODATA;
3813
3814 rcu_read_lock();
3815 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3816 if (chanctx_conf) {
3817 *chandef = chanctx_conf->def;
3818 ret = 0;
3819 } else if (local->open_count > 0 &&
3820 local->open_count == local->monitors &&
3821 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3822 if (local->use_chanctx)
3823 *chandef = local->monitor_chandef;
3824 else
3825 *chandef = local->_oper_chandef;
3826 ret = 0;
3827 }
3828 rcu_read_unlock();
3829
3830 return ret;
3831}
3832
3833#ifdef CONFIG_PM
3834static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3835{
3836 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3837}
3838#endif
3839
3840static int ieee80211_set_qos_map(struct wiphy *wiphy,
3841 struct net_device *dev,
3842 struct cfg80211_qos_map *qos_map)
3843{
3844 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3845 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3846
3847 if (qos_map) {
3848 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3849 if (!new_qos_map)
3850 return -ENOMEM;
3851 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3852 } else {
3853 /* A NULL qos_map was passed to disable QoS mapping */
3854 new_qos_map = NULL;
3855 }
3856
3857 old_qos_map = rtnl_dereference(sdata->qos_map);
3858 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3859 if (old_qos_map)
3860 kfree_rcu(old_qos_map, rcu_head);
3861
3862 return 0;
3863}
3864
3865struct cfg80211_ops mac80211_config_ops = {
3866 .add_virtual_intf = ieee80211_add_iface,
3867 .del_virtual_intf = ieee80211_del_iface,
3868 .change_virtual_intf = ieee80211_change_iface,
3869 .start_p2p_device = ieee80211_start_p2p_device,
3870 .stop_p2p_device = ieee80211_stop_p2p_device,
3871 .add_key = ieee80211_add_key,
3872 .del_key = ieee80211_del_key,
3873 .get_key = ieee80211_get_key,
3874 .set_default_key = ieee80211_config_default_key,
3875 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3876 .start_ap = ieee80211_start_ap,
3877 .change_beacon = ieee80211_change_beacon,
3878 .stop_ap = ieee80211_stop_ap,
3879 .add_station = ieee80211_add_station,
3880 .del_station = ieee80211_del_station,
3881 .change_station = ieee80211_change_station,
3882 .get_station = ieee80211_get_station,
3883 .dump_station = ieee80211_dump_station,
3884 .dump_survey = ieee80211_dump_survey,
3885#ifdef CONFIG_MAC80211_MESH
3886 .add_mpath = ieee80211_add_mpath,
3887 .del_mpath = ieee80211_del_mpath,
3888 .change_mpath = ieee80211_change_mpath,
3889 .get_mpath = ieee80211_get_mpath,
3890 .dump_mpath = ieee80211_dump_mpath,
3891 .update_mesh_config = ieee80211_update_mesh_config,
3892 .get_mesh_config = ieee80211_get_mesh_config,
3893 .join_mesh = ieee80211_join_mesh,
3894 .leave_mesh = ieee80211_leave_mesh,
3895#endif
3896 .change_bss = ieee80211_change_bss,
3897 .set_txq_params = ieee80211_set_txq_params,
3898 .set_monitor_channel = ieee80211_set_monitor_channel,
3899 .suspend = ieee80211_suspend,
3900 .resume = ieee80211_resume,
3901 .scan = ieee80211_scan,
3902 .sched_scan_start = ieee80211_sched_scan_start,
3903 .sched_scan_stop = ieee80211_sched_scan_stop,
3904 .auth = ieee80211_auth,
3905 .assoc = ieee80211_assoc,
3906 .deauth = ieee80211_deauth,
3907 .disassoc = ieee80211_disassoc,
3908 .join_ibss = ieee80211_join_ibss,
3909 .leave_ibss = ieee80211_leave_ibss,
3910 .set_mcast_rate = ieee80211_set_mcast_rate,
3911 .set_wiphy_params = ieee80211_set_wiphy_params,
3912 .set_tx_power = ieee80211_set_tx_power,
3913 .get_tx_power = ieee80211_get_tx_power,
3914 .set_wds_peer = ieee80211_set_wds_peer,
3915 .rfkill_poll = ieee80211_rfkill_poll,
3916 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3917 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3918 .set_power_mgmt = ieee80211_set_power_mgmt,
3919 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3920 .remain_on_channel = ieee80211_remain_on_channel,
3921 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3922 .mgmt_tx = ieee80211_mgmt_tx,
3923 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3924 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3925 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3926 .set_antenna = ieee80211_set_antenna,
3927 .get_antenna = ieee80211_get_antenna,
3928 .set_ringparam = ieee80211_set_ringparam,
3929 .get_ringparam = ieee80211_get_ringparam,
3930 .set_rekey_data = ieee80211_set_rekey_data,
3931 .tdls_oper = ieee80211_tdls_oper,
3932 .tdls_mgmt = ieee80211_tdls_mgmt,
3933 .probe_client = ieee80211_probe_client,
3934 .set_noack_map = ieee80211_set_noack_map,
3935#ifdef CONFIG_PM
3936 .set_wakeup = ieee80211_set_wakeup,
3937#endif
3938 .get_et_sset_count = ieee80211_get_et_sset_count,
3939 .get_et_stats = ieee80211_get_et_stats,
3940 .get_et_strings = ieee80211_get_et_strings,
3941 .get_channel = ieee80211_cfg_get_channel,
3942 .start_radar_detection = ieee80211_start_radar_detection,
3943 .channel_switch = ieee80211_channel_switch,
3944 .set_qos_map = ieee80211_set_qos_map,
3945};
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