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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
[linux-2.6/cjktty.git] / net / mac80211 / cfg.c
blob76690020d605ae5bbdd6cea45fe51af48040da0a
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
9 #include <linux/ieee80211.h>
10 #include <linux/nl80211.h>
11 #include <linux/rtnetlink.h>
12 #include <linux/slab.h>
13 #include <net/net_namespace.h>
14 #include <linux/rcupdate.h>
15 #include <linux/if_ether.h>
16 #include <net/cfg80211.h>
17 #include "ieee80211_i.h"
18 #include "driver-ops.h"
19 #include "cfg.h"
20 #include "rate.h"
21 #include "mesh.h"
22
23 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
28 {
29 struct ieee80211_local *local = wiphy_priv(wiphy);
30 struct wireless_dev *wdev;
31 struct ieee80211_sub_if_data *sdata;
32 int err;
33
34 err = ieee80211_if_add(local, name, &wdev, type, params);
35 if (err)
36 return ERR_PTR(err);
37
38 if (type == NL80211_IFTYPE_MONITOR && flags) {
39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
40 sdata->u.mntr_flags = *flags;
41 }
42
43 return wdev;
44 }
45
46 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
47 {
48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
49
50 return 0;
51 }
52
53 static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
57 {
58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
59 int ret;
60
61 ret = ieee80211_if_change_type(sdata, type);
62 if (ret)
63 return ret;
64
65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
74
75 if (ieee80211_sdata_running(sdata)) {
76 /*
77 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
78 * changed while the interface is up.
79 * Else we would need to add a lot of cruft
80 * to update everything:
81 * cooked_mntrs, monitor and all fif_* counters
82 * reconfigure hardware
83 */
84 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
85 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
86 return -EBUSY;
87
88 ieee80211_adjust_monitor_flags(sdata, -1);
89 sdata->u.mntr_flags = *flags;
90 ieee80211_adjust_monitor_flags(sdata, 1);
91
92 ieee80211_configure_filter(local);
93 } else {
94 /*
95 * Because the interface is down, ieee80211_do_stop
96 * and ieee80211_do_open take care of "everything"
97 * mentioned in the comment above.
98 */
99 sdata->u.mntr_flags = *flags;
100 }
101 }
102
103 return 0;
104 }
105
106 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
107 struct wireless_dev *wdev)
108 {
109 return ieee80211_do_open(wdev, true);
110 }
111
112 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
113 struct wireless_dev *wdev)
114 {
115 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
116 }
117
118 static int ieee80211_set_noack_map(struct wiphy *wiphy,
119 struct net_device *dev,
120 u16 noack_map)
121 {
122 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
123
124 sdata->noack_map = noack_map;
125 return 0;
126 }
127
128 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
129 u8 key_idx, bool pairwise, const u8 *mac_addr,
130 struct key_params *params)
131 {
132 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
133 struct sta_info *sta = NULL;
134 struct ieee80211_key *key;
135 int err;
136
137 if (!ieee80211_sdata_running(sdata))
138 return -ENETDOWN;
139
140 /* reject WEP and TKIP keys if WEP failed to initialize */
141 switch (params->cipher) {
142 case WLAN_CIPHER_SUITE_WEP40:
143 case WLAN_CIPHER_SUITE_TKIP:
144 case WLAN_CIPHER_SUITE_WEP104:
145 if (IS_ERR(sdata->local->wep_tx_tfm))
146 return -EINVAL;
147 break;
148 default:
149 break;
150 }
151
152 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
153 params->key, params->seq_len, params->seq);
154 if (IS_ERR(key))
155 return PTR_ERR(key);
156
157 if (pairwise)
158 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
159
160 mutex_lock(&sdata->local->sta_mtx);
161
162 if (mac_addr) {
163 if (ieee80211_vif_is_mesh(&sdata->vif))
164 sta = sta_info_get(sdata, mac_addr);
165 else
166 sta = sta_info_get_bss(sdata, mac_addr);
167 if (!sta) {
168 ieee80211_key_free(sdata->local, key);
169 err = -ENOENT;
170 goto out_unlock;
171 }
172 }
173
174 switch (sdata->vif.type) {
175 case NL80211_IFTYPE_STATION:
176 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
177 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
178 break;
179 case NL80211_IFTYPE_AP:
180 case NL80211_IFTYPE_AP_VLAN:
181 /* Keys without a station are used for TX only */
182 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
183 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
184 break;
185 case NL80211_IFTYPE_ADHOC:
186 /* no MFP (yet) */
187 break;
188 case NL80211_IFTYPE_MESH_POINT:
189 #ifdef CONFIG_MAC80211_MESH
190 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
191 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
192 break;
193 #endif
194 case NL80211_IFTYPE_WDS:
195 case NL80211_IFTYPE_MONITOR:
196 case NL80211_IFTYPE_P2P_DEVICE:
197 case NL80211_IFTYPE_UNSPECIFIED:
198 case NUM_NL80211_IFTYPES:
199 case NL80211_IFTYPE_P2P_CLIENT:
200 case NL80211_IFTYPE_P2P_GO:
201 /* shouldn't happen */
202 WARN_ON_ONCE(1);
203 break;
204 }
205
206 err = ieee80211_key_link(key, sdata, sta);
207 if (err)
208 ieee80211_key_free(sdata->local, key);
209
210 out_unlock:
211 mutex_unlock(&sdata->local->sta_mtx);
212
213 return err;
214 }
215
216 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
217 u8 key_idx, bool pairwise, const u8 *mac_addr)
218 {
219 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
220 struct ieee80211_local *local = sdata->local;
221 struct sta_info *sta;
222 struct ieee80211_key *key = NULL;
223 int ret;
224
225 mutex_lock(&local->sta_mtx);
226 mutex_lock(&local->key_mtx);
227
228 if (mac_addr) {
229 ret = -ENOENT;
230
231 sta = sta_info_get_bss(sdata, mac_addr);
232 if (!sta)
233 goto out_unlock;
234
235 if (pairwise)
236 key = key_mtx_dereference(local, sta->ptk);
237 else
238 key = key_mtx_dereference(local, sta->gtk[key_idx]);
239 } else
240 key = key_mtx_dereference(local, sdata->keys[key_idx]);
241
242 if (!key) {
243 ret = -ENOENT;
244 goto out_unlock;
245 }
246
247 __ieee80211_key_free(key);
248
249 ret = 0;
250 out_unlock:
251 mutex_unlock(&local->key_mtx);
252 mutex_unlock(&local->sta_mtx);
253
254 return ret;
255 }
256
257 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
258 u8 key_idx, bool pairwise, const u8 *mac_addr,
259 void *cookie,
260 void (*callback)(void *cookie,
261 struct key_params *params))
262 {
263 struct ieee80211_sub_if_data *sdata;
264 struct sta_info *sta = NULL;
265 u8 seq[6] = {0};
266 struct key_params params;
267 struct ieee80211_key *key = NULL;
268 u64 pn64;
269 u32 iv32;
270 u16 iv16;
271 int err = -ENOENT;
272
273 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
274
275 rcu_read_lock();
276
277 if (mac_addr) {
278 sta = sta_info_get_bss(sdata, mac_addr);
279 if (!sta)
280 goto out;
281
282 if (pairwise)
283 key = rcu_dereference(sta->ptk);
284 else if (key_idx < NUM_DEFAULT_KEYS)
285 key = rcu_dereference(sta->gtk[key_idx]);
286 } else
287 key = rcu_dereference(sdata->keys[key_idx]);
288
289 if (!key)
290 goto out;
291
292 memset(&params, 0, sizeof(params));
293
294 params.cipher = key->conf.cipher;
295
296 switch (key->conf.cipher) {
297 case WLAN_CIPHER_SUITE_TKIP:
298 iv32 = key->u.tkip.tx.iv32;
299 iv16 = key->u.tkip.tx.iv16;
300
301 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
302 drv_get_tkip_seq(sdata->local,
303 key->conf.hw_key_idx,
304 &iv32, &iv16);
305
306 seq[0] = iv16 & 0xff;
307 seq[1] = (iv16 >> 8) & 0xff;
308 seq[2] = iv32 & 0xff;
309 seq[3] = (iv32 >> 8) & 0xff;
310 seq[4] = (iv32 >> 16) & 0xff;
311 seq[5] = (iv32 >> 24) & 0xff;
312 params.seq = seq;
313 params.seq_len = 6;
314 break;
315 case WLAN_CIPHER_SUITE_CCMP:
316 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
317 seq[0] = pn64;
318 seq[1] = pn64 >> 8;
319 seq[2] = pn64 >> 16;
320 seq[3] = pn64 >> 24;
321 seq[4] = pn64 >> 32;
322 seq[5] = pn64 >> 40;
323 params.seq = seq;
324 params.seq_len = 6;
325 break;
326 case WLAN_CIPHER_SUITE_AES_CMAC:
327 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
328 seq[0] = pn64;
329 seq[1] = pn64 >> 8;
330 seq[2] = pn64 >> 16;
331 seq[3] = pn64 >> 24;
332 seq[4] = pn64 >> 32;
333 seq[5] = pn64 >> 40;
334 params.seq = seq;
335 params.seq_len = 6;
336 break;
337 }
338
339 params.key = key->conf.key;
340 params.key_len = key->conf.keylen;
341
342 callback(cookie, &params);
343 err = 0;
344
345 out:
346 rcu_read_unlock();
347 return err;
348 }
349
350 static int ieee80211_config_default_key(struct wiphy *wiphy,
351 struct net_device *dev,
352 u8 key_idx, bool uni,
353 bool multi)
354 {
355 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
356
357 ieee80211_set_default_key(sdata, key_idx, uni, multi);
358
359 return 0;
360 }
361
362 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
363 struct net_device *dev,
364 u8 key_idx)
365 {
366 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
367
368 ieee80211_set_default_mgmt_key(sdata, key_idx);
369
370 return 0;
371 }
372
373 static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
374 {
375 enum ieee80211_band band = ieee80211_get_sdata_band(sta->sdata);
376
377 if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
378 struct ieee80211_supported_band *sband;
379 sband = sta->local->hw.wiphy->bands[band];
380 rate->legacy = sband->bitrates[idx].bitrate;
381 } else
382 rate->mcs = idx;
383 }
384
385 void sta_set_rate_info_tx(struct sta_info *sta,
386 const struct ieee80211_tx_rate *rate,
387 struct rate_info *rinfo)
388 {
389 rinfo->flags = 0;
390 if (rate->flags & IEEE80211_TX_RC_MCS)
391 rinfo->flags |= RATE_INFO_FLAGS_MCS;
392 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
393 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
394 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
395 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
396 rate_idx_to_bitrate(rinfo, sta, rate->idx);
397 }
398
399 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
400 {
401 struct ieee80211_sub_if_data *sdata = sta->sdata;
402 struct ieee80211_local *local = sdata->local;
403 struct timespec uptime;
404
405 sinfo->generation = sdata->local->sta_generation;
406
407 sinfo->filled = STATION_INFO_INACTIVE_TIME |
408 STATION_INFO_RX_BYTES |
409 STATION_INFO_TX_BYTES |
410 STATION_INFO_RX_PACKETS |
411 STATION_INFO_TX_PACKETS |
412 STATION_INFO_TX_RETRIES |
413 STATION_INFO_TX_FAILED |
414 STATION_INFO_TX_BITRATE |
415 STATION_INFO_RX_BITRATE |
416 STATION_INFO_RX_DROP_MISC |
417 STATION_INFO_BSS_PARAM |
418 STATION_INFO_CONNECTED_TIME |
419 STATION_INFO_STA_FLAGS |
420 STATION_INFO_BEACON_LOSS_COUNT;
421
422 do_posix_clock_monotonic_gettime(&uptime);
423 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
424
425 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
426 sinfo->rx_bytes = sta->rx_bytes;
427 sinfo->tx_bytes = sta->tx_bytes;
428 sinfo->rx_packets = sta->rx_packets;
429 sinfo->tx_packets = sta->tx_packets;
430 sinfo->tx_retries = sta->tx_retry_count;
431 sinfo->tx_failed = sta->tx_retry_failed;
432 sinfo->rx_dropped_misc = sta->rx_dropped;
433 sinfo->beacon_loss_count = sta->beacon_loss_count;
434
435 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
436 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
437 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
438 if (!local->ops->get_rssi ||
439 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
440 sinfo->signal = (s8)sta->last_signal;
441 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
442 }
443
444 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
445
446 sinfo->rxrate.flags = 0;
447 if (sta->last_rx_rate_flag & RX_FLAG_HT)
448 sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
449 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
450 sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
451 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
452 sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
453 rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
454
455 if (ieee80211_vif_is_mesh(&sdata->vif)) {
456 #ifdef CONFIG_MAC80211_MESH
457 sinfo->filled |= STATION_INFO_LLID |
458 STATION_INFO_PLID |
459 STATION_INFO_PLINK_STATE;
460
461 sinfo->llid = le16_to_cpu(sta->llid);
462 sinfo->plid = le16_to_cpu(sta->plid);
463 sinfo->plink_state = sta->plink_state;
464 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
465 sinfo->filled |= STATION_INFO_T_OFFSET;
466 sinfo->t_offset = sta->t_offset;
467 }
468 #endif
469 }
470
471 sinfo->bss_param.flags = 0;
472 if (sdata->vif.bss_conf.use_cts_prot)
473 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
474 if (sdata->vif.bss_conf.use_short_preamble)
475 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
476 if (sdata->vif.bss_conf.use_short_slot)
477 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
478 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
479 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
480
481 sinfo->sta_flags.set = 0;
482 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
483 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
484 BIT(NL80211_STA_FLAG_WME) |
485 BIT(NL80211_STA_FLAG_MFP) |
486 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
487 BIT(NL80211_STA_FLAG_TDLS_PEER);
488 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
489 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
490 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
491 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
492 if (test_sta_flag(sta, WLAN_STA_WME))
493 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
494 if (test_sta_flag(sta, WLAN_STA_MFP))
495 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
496 if (test_sta_flag(sta, WLAN_STA_AUTH))
497 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
498 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
499 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
500 }
501
502 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
503 "rx_packets", "rx_bytes", "wep_weak_iv_count",
504 "rx_duplicates", "rx_fragments", "rx_dropped",
505 "tx_packets", "tx_bytes", "tx_fragments",
506 "tx_filtered", "tx_retry_failed", "tx_retries",
507 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
508 "channel", "noise", "ch_time", "ch_time_busy",
509 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
510 };
511 #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
512
513 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
514 struct net_device *dev,
515 int sset)
516 {
517 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
518 int rv = 0;
519
520 if (sset == ETH_SS_STATS)
521 rv += STA_STATS_LEN;
522
523 rv += drv_get_et_sset_count(sdata, sset);
524
525 if (rv == 0)
526 return -EOPNOTSUPP;
527 return rv;
528 }
529
530 static void ieee80211_get_et_stats(struct wiphy *wiphy,
531 struct net_device *dev,
532 struct ethtool_stats *stats,
533 u64 *data)
534 {
535 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
536 struct ieee80211_chanctx_conf *chanctx_conf;
537 struct ieee80211_channel *channel;
538 struct sta_info *sta;
539 struct ieee80211_local *local = sdata->local;
540 struct station_info sinfo;
541 struct survey_info survey;
542 int i, q;
543 #define STA_STATS_SURVEY_LEN 7
544
545 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
546
547 #define ADD_STA_STATS(sta) \
548 do { \
549 data[i++] += sta->rx_packets; \
550 data[i++] += sta->rx_bytes; \
551 data[i++] += sta->wep_weak_iv_count; \
552 data[i++] += sta->num_duplicates; \
553 data[i++] += sta->rx_fragments; \
554 data[i++] += sta->rx_dropped; \
555 \
556 data[i++] += sta->tx_packets; \
557 data[i++] += sta->tx_bytes; \
558 data[i++] += sta->tx_fragments; \
559 data[i++] += sta->tx_filtered_count; \
560 data[i++] += sta->tx_retry_failed; \
561 data[i++] += sta->tx_retry_count; \
562 data[i++] += sta->beacon_loss_count; \
563 } while (0)
564
565 /* For Managed stations, find the single station based on BSSID
566 * and use that. For interface types, iterate through all available
567 * stations and add stats for any station that is assigned to this
568 * network device.
569 */
570
571 mutex_lock(&local->sta_mtx);
572
573 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
574 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
575
576 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
577 goto do_survey;
578
579 i = 0;
580 ADD_STA_STATS(sta);
581
582 data[i++] = sta->sta_state;
583
584 sinfo.filled = 0;
585 sta_set_sinfo(sta, &sinfo);
586
587 if (sinfo.filled & STATION_INFO_TX_BITRATE)
588 data[i] = 100000 *
589 cfg80211_calculate_bitrate(&sinfo.txrate);
590 i++;
591 if (sinfo.filled & STATION_INFO_RX_BITRATE)
592 data[i] = 100000 *
593 cfg80211_calculate_bitrate(&sinfo.rxrate);
594 i++;
595
596 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
597 data[i] = (u8)sinfo.signal_avg;
598 i++;
599 } else {
600 list_for_each_entry(sta, &local->sta_list, list) {
601 /* Make sure this station belongs to the proper dev */
602 if (sta->sdata->dev != dev)
603 continue;
604
605 i = 0;
606 ADD_STA_STATS(sta);
607 }
608 }
609
610 do_survey:
611 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
612 /* Get survey stats for current channel */
613 survey.filled = 0;
614
615 rcu_read_lock();
616 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
617 if (chanctx_conf)
618 channel = chanctx_conf->channel;
619 else
620 channel = NULL;
621 rcu_read_unlock();
622
623 if (channel) {
624 q = 0;
625 do {
626 survey.filled = 0;
627 if (drv_get_survey(local, q, &survey) != 0) {
628 survey.filled = 0;
629 break;
630 }
631 q++;
632 } while (channel != survey.channel);
633 }
634
635 if (survey.filled)
636 data[i++] = survey.channel->center_freq;
637 else
638 data[i++] = 0;
639 if (survey.filled & SURVEY_INFO_NOISE_DBM)
640 data[i++] = (u8)survey.noise;
641 else
642 data[i++] = -1LL;
643 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
644 data[i++] = survey.channel_time;
645 else
646 data[i++] = -1LL;
647 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
648 data[i++] = survey.channel_time_busy;
649 else
650 data[i++] = -1LL;
651 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
652 data[i++] = survey.channel_time_ext_busy;
653 else
654 data[i++] = -1LL;
655 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
656 data[i++] = survey.channel_time_rx;
657 else
658 data[i++] = -1LL;
659 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
660 data[i++] = survey.channel_time_tx;
661 else
662 data[i++] = -1LL;
663
664 mutex_unlock(&local->sta_mtx);
665
666 if (WARN_ON(i != STA_STATS_LEN))
667 return;
668
669 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
670 }
671
672 static void ieee80211_get_et_strings(struct wiphy *wiphy,
673 struct net_device *dev,
674 u32 sset, u8 *data)
675 {
676 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
677 int sz_sta_stats = 0;
678
679 if (sset == ETH_SS_STATS) {
680 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
681 memcpy(data, *ieee80211_gstrings_sta_stats, sz_sta_stats);
682 }
683 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
684 }
685
686 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
687 int idx, u8 *mac, struct station_info *sinfo)
688 {
689 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
690 struct ieee80211_local *local = sdata->local;
691 struct sta_info *sta;
692 int ret = -ENOENT;
693
694 mutex_lock(&local->sta_mtx);
695
696 sta = sta_info_get_by_idx(sdata, idx);
697 if (sta) {
698 ret = 0;
699 memcpy(mac, sta->sta.addr, ETH_ALEN);
700 sta_set_sinfo(sta, sinfo);
701 }
702
703 mutex_unlock(&local->sta_mtx);
704
705 return ret;
706 }
707
708 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
709 int idx, struct survey_info *survey)
710 {
711 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
712
713 return drv_get_survey(local, idx, survey);
714 }
715
716 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
717 u8 *mac, struct station_info *sinfo)
718 {
719 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
720 struct ieee80211_local *local = sdata->local;
721 struct sta_info *sta;
722 int ret = -ENOENT;
723
724 mutex_lock(&local->sta_mtx);
725
726 sta = sta_info_get_bss(sdata, mac);
727 if (sta) {
728 ret = 0;
729 sta_set_sinfo(sta, sinfo);
730 }
731
732 mutex_unlock(&local->sta_mtx);
733
734 return ret;
735 }
736
737 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
738 struct ieee80211_channel *chan,
739 enum nl80211_channel_type channel_type)
740 {
741 struct ieee80211_local *local = wiphy_priv(wiphy);
742 struct ieee80211_sub_if_data *sdata;
743 int ret = 0;
744
745 if (local->monitor_channel == chan &&
746 local->monitor_channel_type == channel_type)
747 return 0;
748
749 mutex_lock(&local->iflist_mtx);
750 if (local->use_chanctx) {
751 sdata = rcu_dereference_protected(
752 local->monitor_sdata,
753 lockdep_is_held(&local->iflist_mtx));
754 if (sdata) {
755 ieee80211_vif_release_channel(sdata);
756 ret = ieee80211_vif_use_channel(
757 sdata, chan, channel_type,
758 IEEE80211_CHANCTX_EXCLUSIVE);
759 }
760 } else if (local->open_count == local->monitors) {
761 local->_oper_channel = chan;
762 local->_oper_channel_type = channel_type;
763 ieee80211_hw_config(local, 0);
764 }
765
766 if (ret == 0) {
767 local->monitor_channel = chan;
768 local->monitor_channel_type = channel_type;
769 }
770 mutex_unlock(&local->iflist_mtx);
771
772 return ret;
773 }
774
775 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
776 const u8 *resp, size_t resp_len)
777 {
778 struct probe_resp *new, *old;
779
780 if (!resp || !resp_len)
781 return 1;
782
783 old = rtnl_dereference(sdata->u.ap.probe_resp);
784
785 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
786 if (!new)
787 return -ENOMEM;
788
789 new->len = resp_len;
790 memcpy(new->data, resp, resp_len);
791
792 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
793 if (old)
794 kfree_rcu(old, rcu_head);
795
796 return 0;
797 }
798
799 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
800 struct cfg80211_beacon_data *params)
801 {
802 struct beacon_data *new, *old;
803 int new_head_len, new_tail_len;
804 int size, err;
805 u32 changed = BSS_CHANGED_BEACON;
806
807 old = rtnl_dereference(sdata->u.ap.beacon);
808
809 /* Need to have a beacon head if we don't have one yet */
810 if (!params->head && !old)
811 return -EINVAL;
812
813 /* new or old head? */
814 if (params->head)
815 new_head_len = params->head_len;
816 else
817 new_head_len = old->head_len;
818
819 /* new or old tail? */
820 if (params->tail || !old)
821 /* params->tail_len will be zero for !params->tail */
822 new_tail_len = params->tail_len;
823 else
824 new_tail_len = old->tail_len;
825
826 size = sizeof(*new) + new_head_len + new_tail_len;
827
828 new = kzalloc(size, GFP_KERNEL);
829 if (!new)
830 return -ENOMEM;
831
832 /* start filling the new info now */
833
834 /*
835 * pointers go into the block we allocated,
836 * memory is | beacon_data | head | tail |
837 */
838 new->head = ((u8 *) new) + sizeof(*new);
839 new->tail = new->head + new_head_len;
840 new->head_len = new_head_len;
841 new->tail_len = new_tail_len;
842
843 /* copy in head */
844 if (params->head)
845 memcpy(new->head, params->head, new_head_len);
846 else
847 memcpy(new->head, old->head, new_head_len);
848
849 /* copy in optional tail */
850 if (params->tail)
851 memcpy(new->tail, params->tail, new_tail_len);
852 else
853 if (old)
854 memcpy(new->tail, old->tail, new_tail_len);
855
856 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
857 params->probe_resp_len);
858 if (err < 0)
859 return err;
860 if (err == 0)
861 changed |= BSS_CHANGED_AP_PROBE_RESP;
862
863 rcu_assign_pointer(sdata->u.ap.beacon, new);
864
865 if (old)
866 kfree_rcu(old, rcu_head);
867
868 return changed;
869 }
870
871 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
872 struct cfg80211_ap_settings *params)
873 {
874 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
875 struct beacon_data *old;
876 struct ieee80211_sub_if_data *vlan;
877 u32 changed = BSS_CHANGED_BEACON_INT |
878 BSS_CHANGED_BEACON_ENABLED |
879 BSS_CHANGED_BEACON |
880 BSS_CHANGED_SSID;
881 int err;
882
883 old = rtnl_dereference(sdata->u.ap.beacon);
884 if (old)
885 return -EALREADY;
886
887 /* TODO: make hostapd tell us what it wants */
888 sdata->smps_mode = IEEE80211_SMPS_OFF;
889 sdata->needed_rx_chains = sdata->local->rx_chains;
890
891 err = ieee80211_vif_use_channel(sdata, params->channel,
892 params->channel_type,
893 IEEE80211_CHANCTX_SHARED);
894 if (err)
895 return err;
896
897 /*
898 * Apply control port protocol, this allows us to
899 * not encrypt dynamic WEP control frames.
900 */
901 sdata->control_port_protocol = params->crypto.control_port_ethertype;
902 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
903 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
904 vlan->control_port_protocol =
905 params->crypto.control_port_ethertype;
906 vlan->control_port_no_encrypt =
907 params->crypto.control_port_no_encrypt;
908 }
909
910 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
911 sdata->vif.bss_conf.dtim_period = params->dtim_period;
912
913 sdata->vif.bss_conf.ssid_len = params->ssid_len;
914 if (params->ssid_len)
915 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
916 params->ssid_len);
917 sdata->vif.bss_conf.hidden_ssid =
918 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
919
920 err = ieee80211_assign_beacon(sdata, &params->beacon);
921 if (err < 0)
922 return err;
923 changed |= err;
924
925 ieee80211_bss_info_change_notify(sdata, changed);
926
927 netif_carrier_on(dev);
928 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
929 netif_carrier_on(vlan->dev);
930
931 return 0;
932 }
933
934 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
935 struct cfg80211_beacon_data *params)
936 {
937 struct ieee80211_sub_if_data *sdata;
938 struct beacon_data *old;
939 int err;
940
941 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
942
943 old = rtnl_dereference(sdata->u.ap.beacon);
944 if (!old)
945 return -ENOENT;
946
947 err = ieee80211_assign_beacon(sdata, params);
948 if (err < 0)
949 return err;
950 ieee80211_bss_info_change_notify(sdata, err);
951 return 0;
952 }
953
954 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
955 {
956 struct ieee80211_sub_if_data *sdata, *vlan;
957 struct beacon_data *old;
958
959 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
960
961 old = rtnl_dereference(sdata->u.ap.beacon);
962 if (!old)
963 return -ENOENT;
964
965 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
966 netif_carrier_off(vlan->dev);
967 netif_carrier_off(dev);
968
969 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
970
971 kfree_rcu(old, rcu_head);
972
973 sta_info_flush(sdata->local, sdata);
974 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
975
976 ieee80211_vif_release_channel(sdata);
977
978 return 0;
979 }
980
981 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
982 struct iapp_layer2_update {
983 u8 da[ETH_ALEN]; /* broadcast */
984 u8 sa[ETH_ALEN]; /* STA addr */
985 __be16 len; /* 6 */
986 u8 dsap; /* 0 */
987 u8 ssap; /* 0 */
988 u8 control;
989 u8 xid_info[3];
990 } __packed;
991
992 static void ieee80211_send_layer2_update(struct sta_info *sta)
993 {
994 struct iapp_layer2_update *msg;
995 struct sk_buff *skb;
996
997 /* Send Level 2 Update Frame to update forwarding tables in layer 2
998 * bridge devices */
999
1000 skb = dev_alloc_skb(sizeof(*msg));
1001 if (!skb)
1002 return;
1003 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1004
1005 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1006 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1007
1008 eth_broadcast_addr(msg->da);
1009 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1010 msg->len = htons(6);
1011 msg->dsap = 0;
1012 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1013 msg->control = 0xaf; /* XID response lsb.1111F101.
1014 * F=0 (no poll command; unsolicited frame) */
1015 msg->xid_info[0] = 0x81; /* XID format identifier */
1016 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1017 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1018
1019 skb->dev = sta->sdata->dev;
1020 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1021 memset(skb->cb, 0, sizeof(skb->cb));
1022 netif_rx_ni(skb);
1023 }
1024
1025 static int sta_apply_parameters(struct ieee80211_local *local,
1026 struct sta_info *sta,
1027 struct station_parameters *params)
1028 {
1029 int ret = 0;
1030 u32 rates;
1031 int i, j;
1032 struct ieee80211_supported_band *sband;
1033 struct ieee80211_sub_if_data *sdata = sta->sdata;
1034 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1035 u32 mask, set;
1036
1037 sband = local->hw.wiphy->bands[band];
1038
1039 mask = params->sta_flags_mask;
1040 set = params->sta_flags_set;
1041
1042 /*
1043 * In mesh mode, we can clear AUTHENTICATED flag but must
1044 * also make ASSOCIATED follow appropriately for the driver
1045 * API. See also below, after AUTHORIZED changes.
1046 */
1047 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
1048 /* cfg80211 should not allow this in non-mesh modes */
1049 if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
1050 return -EINVAL;
1051
1052 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1053 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1054 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1055 if (ret)
1056 return ret;
1057 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1058 if (ret)
1059 return ret;
1060 }
1061 }
1062
1063 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1064 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1065 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1066 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1067 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1068 if (ret)
1069 return ret;
1070 }
1071
1072 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
1073 /* cfg80211 should not allow this in non-mesh modes */
1074 if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
1075 return -EINVAL;
1076
1077 if (!(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1078 test_sta_flag(sta, WLAN_STA_AUTH)) {
1079 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1080 if (ret)
1081 return ret;
1082 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1083 if (ret)
1084 return ret;
1085 }
1086 }
1087
1088
1089 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1090 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1091 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1092 else
1093 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1094 }
1095
1096 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1097 if (set & BIT(NL80211_STA_FLAG_WME)) {
1098 set_sta_flag(sta, WLAN_STA_WME);
1099 sta->sta.wme = true;
1100 } else {
1101 clear_sta_flag(sta, WLAN_STA_WME);
1102 sta->sta.wme = false;
1103 }
1104 }
1105
1106 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1107 if (set & BIT(NL80211_STA_FLAG_MFP))
1108 set_sta_flag(sta, WLAN_STA_MFP);
1109 else
1110 clear_sta_flag(sta, WLAN_STA_MFP);
1111 }
1112
1113 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1114 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1115 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1116 else
1117 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1118 }
1119
1120 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1121 sta->sta.uapsd_queues = params->uapsd_queues;
1122 sta->sta.max_sp = params->max_sp;
1123 }
1124
1125 /*
1126 * cfg80211 validates this (1-2007) and allows setting the AID
1127 * only when creating a new station entry
1128 */
1129 if (params->aid)
1130 sta->sta.aid = params->aid;
1131
1132 /*
1133 * FIXME: updating the following information is racy when this
1134 * function is called from ieee80211_change_station().
1135 * However, all this information should be static so
1136 * maybe we should just reject attemps to change it.
1137 */
1138
1139 if (params->listen_interval >= 0)
1140 sta->listen_interval = params->listen_interval;
1141
1142 if (params->supported_rates) {
1143 rates = 0;
1144
1145 for (i = 0; i < params->supported_rates_len; i++) {
1146 int rate = (params->supported_rates[i] & 0x7f) * 5;
1147 for (j = 0; j < sband->n_bitrates; j++) {
1148 if (sband->bitrates[j].bitrate == rate)
1149 rates |= BIT(j);
1150 }
1151 }
1152 sta->sta.supp_rates[band] = rates;
1153 }
1154
1155 if (params->ht_capa)
1156 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1157 params->ht_capa,
1158 &sta->sta.ht_cap);
1159
1160 if (params->vht_capa)
1161 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1162 params->vht_capa,
1163 &sta->sta.vht_cap);
1164
1165 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1166 #ifdef CONFIG_MAC80211_MESH
1167 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
1168 switch (params->plink_state) {
1169 case NL80211_PLINK_LISTEN:
1170 case NL80211_PLINK_ESTAB:
1171 case NL80211_PLINK_BLOCKED:
1172 sta->plink_state = params->plink_state;
1173 break;
1174 default:
1175 /* nothing */
1176 break;
1177 }
1178 else
1179 switch (params->plink_action) {
1180 case PLINK_ACTION_OPEN:
1181 mesh_plink_open(sta);
1182 break;
1183 case PLINK_ACTION_BLOCK:
1184 mesh_plink_block(sta);
1185 break;
1186 }
1187 #endif
1188 }
1189
1190 return 0;
1191 }
1192
1193 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1194 u8 *mac, struct station_parameters *params)
1195 {
1196 struct ieee80211_local *local = wiphy_priv(wiphy);
1197 struct sta_info *sta;
1198 struct ieee80211_sub_if_data *sdata;
1199 int err;
1200 int layer2_update;
1201
1202 if (params->vlan) {
1203 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1204
1205 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1206 sdata->vif.type != NL80211_IFTYPE_AP)
1207 return -EINVAL;
1208 } else
1209 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1210
1211 if (ether_addr_equal(mac, sdata->vif.addr))
1212 return -EINVAL;
1213
1214 if (is_multicast_ether_addr(mac))
1215 return -EINVAL;
1216
1217 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1218 if (!sta)
1219 return -ENOMEM;
1220
1221 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1222 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1223
1224 err = sta_apply_parameters(local, sta, params);
1225 if (err) {
1226 sta_info_free(local, sta);
1227 return err;
1228 }
1229
1230 /*
1231 * for TDLS, rate control should be initialized only when supported
1232 * rates are known.
1233 */
1234 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1235 rate_control_rate_init(sta);
1236
1237 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1238 sdata->vif.type == NL80211_IFTYPE_AP;
1239
1240 err = sta_info_insert_rcu(sta);
1241 if (err) {
1242 rcu_read_unlock();
1243 return err;
1244 }
1245
1246 if (layer2_update)
1247 ieee80211_send_layer2_update(sta);
1248
1249 rcu_read_unlock();
1250
1251 return 0;
1252 }
1253
1254 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1255 u8 *mac)
1256 {
1257 struct ieee80211_local *local = wiphy_priv(wiphy);
1258 struct ieee80211_sub_if_data *sdata;
1259
1260 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1261
1262 if (mac)
1263 return sta_info_destroy_addr_bss(sdata, mac);
1264
1265 sta_info_flush(local, sdata);
1266 return 0;
1267 }
1268
1269 static int ieee80211_change_station(struct wiphy *wiphy,
1270 struct net_device *dev,
1271 u8 *mac,
1272 struct station_parameters *params)
1273 {
1274 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1275 struct ieee80211_local *local = wiphy_priv(wiphy);
1276 struct sta_info *sta;
1277 struct ieee80211_sub_if_data *vlansdata;
1278 int err;
1279
1280 mutex_lock(&local->sta_mtx);
1281
1282 sta = sta_info_get_bss(sdata, mac);
1283 if (!sta) {
1284 mutex_unlock(&local->sta_mtx);
1285 return -ENOENT;
1286 }
1287
1288 /* in station mode, supported rates are only valid with TDLS */
1289 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1290 params->supported_rates &&
1291 !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1292 mutex_unlock(&local->sta_mtx);
1293 return -EINVAL;
1294 }
1295
1296 if (params->vlan && params->vlan != sta->sdata->dev) {
1297 bool prev_4addr = false;
1298 bool new_4addr = false;
1299
1300 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1301
1302 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1303 vlansdata->vif.type != NL80211_IFTYPE_AP) {
1304 mutex_unlock(&local->sta_mtx);
1305 return -EINVAL;
1306 }
1307
1308 if (params->vlan->ieee80211_ptr->use_4addr) {
1309 if (vlansdata->u.vlan.sta) {
1310 mutex_unlock(&local->sta_mtx);
1311 return -EBUSY;
1312 }
1313
1314 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1315 new_4addr = true;
1316 }
1317
1318 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1319 sta->sdata->u.vlan.sta) {
1320 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1321 prev_4addr = true;
1322 }
1323
1324 sta->sdata = vlansdata;
1325
1326 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1327 prev_4addr != new_4addr) {
1328 if (new_4addr)
1329 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1330 else
1331 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1332 }
1333
1334 ieee80211_send_layer2_update(sta);
1335 }
1336
1337 err = sta_apply_parameters(local, sta, params);
1338 if (err) {
1339 mutex_unlock(&local->sta_mtx);
1340 return err;
1341 }
1342
1343 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && params->supported_rates)
1344 rate_control_rate_init(sta);
1345
1346 mutex_unlock(&local->sta_mtx);
1347
1348 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1349 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1350 ieee80211_recalc_ps(local, -1);
1351 ieee80211_recalc_ps_vif(sdata);
1352 }
1353 return 0;
1354 }
1355
1356 #ifdef CONFIG_MAC80211_MESH
1357 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1358 u8 *dst, u8 *next_hop)
1359 {
1360 struct ieee80211_sub_if_data *sdata;
1361 struct mesh_path *mpath;
1362 struct sta_info *sta;
1363 int err;
1364
1365 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1366
1367 rcu_read_lock();
1368 sta = sta_info_get(sdata, next_hop);
1369 if (!sta) {
1370 rcu_read_unlock();
1371 return -ENOENT;
1372 }
1373
1374 err = mesh_path_add(dst, sdata);
1375 if (err) {
1376 rcu_read_unlock();
1377 return err;
1378 }
1379
1380 mpath = mesh_path_lookup(dst, sdata);
1381 if (!mpath) {
1382 rcu_read_unlock();
1383 return -ENXIO;
1384 }
1385 mesh_path_fix_nexthop(mpath, sta);
1386
1387 rcu_read_unlock();
1388 return 0;
1389 }
1390
1391 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1392 u8 *dst)
1393 {
1394 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1395
1396 if (dst)
1397 return mesh_path_del(dst, sdata);
1398
1399 mesh_path_flush_by_iface(sdata);
1400 return 0;
1401 }
1402
1403 static int ieee80211_change_mpath(struct wiphy *wiphy,
1404 struct net_device *dev,
1405 u8 *dst, u8 *next_hop)
1406 {
1407 struct ieee80211_sub_if_data *sdata;
1408 struct mesh_path *mpath;
1409 struct sta_info *sta;
1410
1411 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1412
1413 rcu_read_lock();
1414
1415 sta = sta_info_get(sdata, next_hop);
1416 if (!sta) {
1417 rcu_read_unlock();
1418 return -ENOENT;
1419 }
1420
1421 mpath = mesh_path_lookup(dst, sdata);
1422 if (!mpath) {
1423 rcu_read_unlock();
1424 return -ENOENT;
1425 }
1426
1427 mesh_path_fix_nexthop(mpath, sta);
1428
1429 rcu_read_unlock();
1430 return 0;
1431 }
1432
1433 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1434 struct mpath_info *pinfo)
1435 {
1436 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1437
1438 if (next_hop_sta)
1439 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1440 else
1441 memset(next_hop, 0, ETH_ALEN);
1442
1443 memset(pinfo, 0, sizeof(*pinfo));
1444
1445 pinfo->generation = mesh_paths_generation;
1446
1447 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1448 MPATH_INFO_SN |
1449 MPATH_INFO_METRIC |
1450 MPATH_INFO_EXPTIME |
1451 MPATH_INFO_DISCOVERY_TIMEOUT |
1452 MPATH_INFO_DISCOVERY_RETRIES |
1453 MPATH_INFO_FLAGS;
1454
1455 pinfo->frame_qlen = mpath->frame_queue.qlen;
1456 pinfo->sn = mpath->sn;
1457 pinfo->metric = mpath->metric;
1458 if (time_before(jiffies, mpath->exp_time))
1459 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1460 pinfo->discovery_timeout =
1461 jiffies_to_msecs(mpath->discovery_timeout);
1462 pinfo->discovery_retries = mpath->discovery_retries;
1463 if (mpath->flags & MESH_PATH_ACTIVE)
1464 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1465 if (mpath->flags & MESH_PATH_RESOLVING)
1466 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1467 if (mpath->flags & MESH_PATH_SN_VALID)
1468 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1469 if (mpath->flags & MESH_PATH_FIXED)
1470 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1471 if (mpath->flags & MESH_PATH_RESOLVED)
1472 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1473 }
1474
1475 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1476 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1477
1478 {
1479 struct ieee80211_sub_if_data *sdata;
1480 struct mesh_path *mpath;
1481
1482 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1483
1484 rcu_read_lock();
1485 mpath = mesh_path_lookup(dst, sdata);
1486 if (!mpath) {
1487 rcu_read_unlock();
1488 return -ENOENT;
1489 }
1490 memcpy(dst, mpath->dst, ETH_ALEN);
1491 mpath_set_pinfo(mpath, next_hop, pinfo);
1492 rcu_read_unlock();
1493 return 0;
1494 }
1495
1496 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1497 int idx, u8 *dst, u8 *next_hop,
1498 struct mpath_info *pinfo)
1499 {
1500 struct ieee80211_sub_if_data *sdata;
1501 struct mesh_path *mpath;
1502
1503 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1504
1505 rcu_read_lock();
1506 mpath = mesh_path_lookup_by_idx(idx, sdata);
1507 if (!mpath) {
1508 rcu_read_unlock();
1509 return -ENOENT;
1510 }
1511 memcpy(dst, mpath->dst, ETH_ALEN);
1512 mpath_set_pinfo(mpath, next_hop, pinfo);
1513 rcu_read_unlock();
1514 return 0;
1515 }
1516
1517 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1518 struct net_device *dev,
1519 struct mesh_config *conf)
1520 {
1521 struct ieee80211_sub_if_data *sdata;
1522 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1523
1524 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1525 return 0;
1526 }
1527
1528 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1529 {
1530 return (mask >> (parm-1)) & 0x1;
1531 }
1532
1533 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1534 const struct mesh_setup *setup)
1535 {
1536 u8 *new_ie;
1537 const u8 *old_ie;
1538 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1539 struct ieee80211_sub_if_data, u.mesh);
1540
1541 /* allocate information elements */
1542 new_ie = NULL;
1543 old_ie = ifmsh->ie;
1544
1545 if (setup->ie_len) {
1546 new_ie = kmemdup(setup->ie, setup->ie_len,
1547 GFP_KERNEL);
1548 if (!new_ie)
1549 return -ENOMEM;
1550 }
1551 ifmsh->ie_len = setup->ie_len;
1552 ifmsh->ie = new_ie;
1553 kfree(old_ie);
1554
1555 /* now copy the rest of the setup parameters */
1556 ifmsh->mesh_id_len = setup->mesh_id_len;
1557 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1558 ifmsh->mesh_sp_id = setup->sync_method;
1559 ifmsh->mesh_pp_id = setup->path_sel_proto;
1560 ifmsh->mesh_pm_id = setup->path_metric;
1561 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1562 if (setup->is_authenticated)
1563 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1564 if (setup->is_secure)
1565 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1566
1567 /* mcast rate setting in Mesh Node */
1568 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1569 sizeof(setup->mcast_rate));
1570
1571 return 0;
1572 }
1573
1574 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1575 struct net_device *dev, u32 mask,
1576 const struct mesh_config *nconf)
1577 {
1578 struct mesh_config *conf;
1579 struct ieee80211_sub_if_data *sdata;
1580 struct ieee80211_if_mesh *ifmsh;
1581
1582 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1583 ifmsh = &sdata->u.mesh;
1584
1585 /* Set the config options which we are interested in setting */
1586 conf = &(sdata->u.mesh.mshcfg);
1587 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1588 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1589 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1590 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1591 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1592 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1593 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1594 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1595 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1596 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1597 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1598 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1599 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1600 conf->element_ttl = nconf->element_ttl;
1601 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1602 conf->auto_open_plinks = nconf->auto_open_plinks;
1603 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1604 conf->dot11MeshNbrOffsetMaxNeighbor =
1605 nconf->dot11MeshNbrOffsetMaxNeighbor;
1606 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1607 conf->dot11MeshHWMPmaxPREQretries =
1608 nconf->dot11MeshHWMPmaxPREQretries;
1609 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1610 conf->path_refresh_time = nconf->path_refresh_time;
1611 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1612 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1613 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1614 conf->dot11MeshHWMPactivePathTimeout =
1615 nconf->dot11MeshHWMPactivePathTimeout;
1616 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1617 conf->dot11MeshHWMPpreqMinInterval =
1618 nconf->dot11MeshHWMPpreqMinInterval;
1619 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1620 conf->dot11MeshHWMPperrMinInterval =
1621 nconf->dot11MeshHWMPperrMinInterval;
1622 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1623 mask))
1624 conf->dot11MeshHWMPnetDiameterTraversalTime =
1625 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1626 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1627 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1628 ieee80211_mesh_root_setup(ifmsh);
1629 }
1630 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1631 /* our current gate announcement implementation rides on root
1632 * announcements, so require this ifmsh to also be a root node
1633 * */
1634 if (nconf->dot11MeshGateAnnouncementProtocol &&
1635 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1636 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1637 ieee80211_mesh_root_setup(ifmsh);
1638 }
1639 conf->dot11MeshGateAnnouncementProtocol =
1640 nconf->dot11MeshGateAnnouncementProtocol;
1641 }
1642 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1643 conf->dot11MeshHWMPRannInterval =
1644 nconf->dot11MeshHWMPRannInterval;
1645 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1646 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1647 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1648 /* our RSSI threshold implementation is supported only for
1649 * devices that report signal in dBm.
1650 */
1651 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1652 return -ENOTSUPP;
1653 conf->rssi_threshold = nconf->rssi_threshold;
1654 }
1655 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1656 conf->ht_opmode = nconf->ht_opmode;
1657 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1658 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1659 }
1660 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1661 conf->dot11MeshHWMPactivePathToRootTimeout =
1662 nconf->dot11MeshHWMPactivePathToRootTimeout;
1663 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1664 conf->dot11MeshHWMProotInterval =
1665 nconf->dot11MeshHWMProotInterval;
1666 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1667 conf->dot11MeshHWMPconfirmationInterval =
1668 nconf->dot11MeshHWMPconfirmationInterval;
1669 return 0;
1670 }
1671
1672 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1673 const struct mesh_config *conf,
1674 const struct mesh_setup *setup)
1675 {
1676 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1677 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1678 int err;
1679
1680 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1681 err = copy_mesh_setup(ifmsh, setup);
1682 if (err)
1683 return err;
1684
1685 /* can mesh use other SMPS modes? */
1686 sdata->smps_mode = IEEE80211_SMPS_OFF;
1687 sdata->needed_rx_chains = sdata->local->rx_chains;
1688
1689 err = ieee80211_vif_use_channel(sdata, setup->channel,
1690 setup->channel_type,
1691 IEEE80211_CHANCTX_SHARED);
1692 if (err)
1693 return err;
1694
1695 ieee80211_start_mesh(sdata);
1696
1697 return 0;
1698 }
1699
1700 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1701 {
1702 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1703
1704 ieee80211_stop_mesh(sdata);
1705 ieee80211_vif_release_channel(sdata);
1706
1707 return 0;
1708 }
1709 #endif
1710
1711 static int ieee80211_change_bss(struct wiphy *wiphy,
1712 struct net_device *dev,
1713 struct bss_parameters *params)
1714 {
1715 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1716 enum ieee80211_band band;
1717 u32 changed = 0;
1718
1719 if (!rtnl_dereference(sdata->u.ap.beacon))
1720 return -ENOENT;
1721
1722 band = ieee80211_get_sdata_band(sdata);
1723
1724 if (params->use_cts_prot >= 0) {
1725 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1726 changed |= BSS_CHANGED_ERP_CTS_PROT;
1727 }
1728 if (params->use_short_preamble >= 0) {
1729 sdata->vif.bss_conf.use_short_preamble =
1730 params->use_short_preamble;
1731 changed |= BSS_CHANGED_ERP_PREAMBLE;
1732 }
1733
1734 if (!sdata->vif.bss_conf.use_short_slot &&
1735 band == IEEE80211_BAND_5GHZ) {
1736 sdata->vif.bss_conf.use_short_slot = true;
1737 changed |= BSS_CHANGED_ERP_SLOT;
1738 }
1739
1740 if (params->use_short_slot_time >= 0) {
1741 sdata->vif.bss_conf.use_short_slot =
1742 params->use_short_slot_time;
1743 changed |= BSS_CHANGED_ERP_SLOT;
1744 }
1745
1746 if (params->basic_rates) {
1747 int i, j;
1748 u32 rates = 0;
1749 struct ieee80211_supported_band *sband = wiphy->bands[band];
1750
1751 for (i = 0; i < params->basic_rates_len; i++) {
1752 int rate = (params->basic_rates[i] & 0x7f) * 5;
1753 for (j = 0; j < sband->n_bitrates; j++) {
1754 if (sband->bitrates[j].bitrate == rate)
1755 rates |= BIT(j);
1756 }
1757 }
1758 sdata->vif.bss_conf.basic_rates = rates;
1759 changed |= BSS_CHANGED_BASIC_RATES;
1760 }
1761
1762 if (params->ap_isolate >= 0) {
1763 if (params->ap_isolate)
1764 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1765 else
1766 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1767 }
1768
1769 if (params->ht_opmode >= 0) {
1770 sdata->vif.bss_conf.ht_operation_mode =
1771 (u16) params->ht_opmode;
1772 changed |= BSS_CHANGED_HT;
1773 }
1774
1775 ieee80211_bss_info_change_notify(sdata, changed);
1776
1777 return 0;
1778 }
1779
1780 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1781 struct net_device *dev,
1782 struct ieee80211_txq_params *params)
1783 {
1784 struct ieee80211_local *local = wiphy_priv(wiphy);
1785 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1786 struct ieee80211_tx_queue_params p;
1787
1788 if (!local->ops->conf_tx)
1789 return -EOPNOTSUPP;
1790
1791 if (local->hw.queues < IEEE80211_NUM_ACS)
1792 return -EOPNOTSUPP;
1793
1794 memset(&p, 0, sizeof(p));
1795 p.aifs = params->aifs;
1796 p.cw_max = params->cwmax;
1797 p.cw_min = params->cwmin;
1798 p.txop = params->txop;
1799
1800 /*
1801 * Setting tx queue params disables u-apsd because it's only
1802 * called in master mode.
1803 */
1804 p.uapsd = false;
1805
1806 sdata->tx_conf[params->ac] = p;
1807 if (drv_conf_tx(local, sdata, params->ac, &p)) {
1808 wiphy_debug(local->hw.wiphy,
1809 "failed to set TX queue parameters for AC %d\n",
1810 params->ac);
1811 return -EINVAL;
1812 }
1813
1814 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1815
1816 return 0;
1817 }
1818
1819 #ifdef CONFIG_PM
1820 static int ieee80211_suspend(struct wiphy *wiphy,
1821 struct cfg80211_wowlan *wowlan)
1822 {
1823 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1824 }
1825
1826 static int ieee80211_resume(struct wiphy *wiphy)
1827 {
1828 return __ieee80211_resume(wiphy_priv(wiphy));
1829 }
1830 #else
1831 #define ieee80211_suspend NULL
1832 #define ieee80211_resume NULL
1833 #endif
1834
1835 static int ieee80211_scan(struct wiphy *wiphy,
1836 struct cfg80211_scan_request *req)
1837 {
1838 struct ieee80211_sub_if_data *sdata;
1839
1840 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
1841
1842 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1843 case NL80211_IFTYPE_STATION:
1844 case NL80211_IFTYPE_ADHOC:
1845 case NL80211_IFTYPE_MESH_POINT:
1846 case NL80211_IFTYPE_P2P_CLIENT:
1847 case NL80211_IFTYPE_P2P_DEVICE:
1848 break;
1849 case NL80211_IFTYPE_P2P_GO:
1850 if (sdata->local->ops->hw_scan)
1851 break;
1852 /*
1853 * FIXME: implement NoA while scanning in software,
1854 * for now fall through to allow scanning only when
1855 * beaconing hasn't been configured yet
1856 */
1857 case NL80211_IFTYPE_AP:
1858 /*
1859 * If the scan has been forced (and the driver supports
1860 * forcing), don't care about being beaconing already.
1861 * This will create problems to the attached stations (e.g. all
1862 * the frames sent while scanning on other channel will be
1863 * lost)
1864 */
1865 if (sdata->u.ap.beacon &&
1866 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1867 !(req->flags & NL80211_SCAN_FLAG_AP)))
1868 return -EOPNOTSUPP;
1869 break;
1870 default:
1871 return -EOPNOTSUPP;
1872 }
1873
1874 return ieee80211_request_scan(sdata, req);
1875 }
1876
1877 static int
1878 ieee80211_sched_scan_start(struct wiphy *wiphy,
1879 struct net_device *dev,
1880 struct cfg80211_sched_scan_request *req)
1881 {
1882 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1883
1884 if (!sdata->local->ops->sched_scan_start)
1885 return -EOPNOTSUPP;
1886
1887 return ieee80211_request_sched_scan_start(sdata, req);
1888 }
1889
1890 static int
1891 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1892 {
1893 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1894
1895 if (!sdata->local->ops->sched_scan_stop)
1896 return -EOPNOTSUPP;
1897
1898 return ieee80211_request_sched_scan_stop(sdata);
1899 }
1900
1901 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1902 struct cfg80211_auth_request *req)
1903 {
1904 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1905 }
1906
1907 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1908 struct cfg80211_assoc_request *req)
1909 {
1910 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1911 }
1912
1913 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1914 struct cfg80211_deauth_request *req)
1915 {
1916 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1917 }
1918
1919 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1920 struct cfg80211_disassoc_request *req)
1921 {
1922 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1923 }
1924
1925 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1926 struct cfg80211_ibss_params *params)
1927 {
1928 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
1929 }
1930
1931 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1932 {
1933 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
1934 }
1935
1936 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1937 {
1938 struct ieee80211_local *local = wiphy_priv(wiphy);
1939 int err;
1940
1941 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1942 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1943
1944 if (err)
1945 return err;
1946 }
1947
1948 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1949 err = drv_set_coverage_class(local, wiphy->coverage_class);
1950
1951 if (err)
1952 return err;
1953 }
1954
1955 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1956 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1957
1958 if (err)
1959 return err;
1960 }
1961
1962 if (changed & WIPHY_PARAM_RETRY_SHORT)
1963 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1964 if (changed & WIPHY_PARAM_RETRY_LONG)
1965 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1966 if (changed &
1967 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1968 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1969
1970 return 0;
1971 }
1972
1973 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1974 enum nl80211_tx_power_setting type, int mbm)
1975 {
1976 struct ieee80211_local *local = wiphy_priv(wiphy);
1977 struct ieee80211_channel *chan = local->_oper_channel;
1978 u32 changes = 0;
1979
1980 /* FIXME */
1981 if (local->use_chanctx)
1982 return -EOPNOTSUPP;
1983
1984 switch (type) {
1985 case NL80211_TX_POWER_AUTOMATIC:
1986 local->user_power_level = -1;
1987 break;
1988 case NL80211_TX_POWER_LIMITED:
1989 if (mbm < 0 || (mbm % 100))
1990 return -EOPNOTSUPP;
1991 local->user_power_level = MBM_TO_DBM(mbm);
1992 break;
1993 case NL80211_TX_POWER_FIXED:
1994 if (mbm < 0 || (mbm % 100))
1995 return -EOPNOTSUPP;
1996 /* TODO: move to cfg80211 when it knows the channel */
1997 if (MBM_TO_DBM(mbm) > chan->max_power)
1998 return -EINVAL;
1999 local->user_power_level = MBM_TO_DBM(mbm);
2000 break;
2001 }
2002
2003 ieee80211_hw_config(local, changes);
2004
2005 return 0;
2006 }
2007
2008 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
2009 {
2010 struct ieee80211_local *local = wiphy_priv(wiphy);
2011
2012 *dbm = local->hw.conf.power_level;
2013
2014 return 0;
2015 }
2016
2017 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2018 const u8 *addr)
2019 {
2020 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2021
2022 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2023
2024 return 0;
2025 }
2026
2027 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2028 {
2029 struct ieee80211_local *local = wiphy_priv(wiphy);
2030
2031 drv_rfkill_poll(local);
2032 }
2033
2034 #ifdef CONFIG_NL80211_TESTMODE
2035 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
2036 {
2037 struct ieee80211_local *local = wiphy_priv(wiphy);
2038
2039 if (!local->ops->testmode_cmd)
2040 return -EOPNOTSUPP;
2041
2042 return local->ops->testmode_cmd(&local->hw, data, len);
2043 }
2044
2045 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2046 struct sk_buff *skb,
2047 struct netlink_callback *cb,
2048 void *data, int len)
2049 {
2050 struct ieee80211_local *local = wiphy_priv(wiphy);
2051
2052 if (!local->ops->testmode_dump)
2053 return -EOPNOTSUPP;
2054
2055 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2056 }
2057 #endif
2058
2059 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
2060 enum ieee80211_smps_mode smps_mode)
2061 {
2062 const u8 *ap;
2063 enum ieee80211_smps_mode old_req;
2064 int err;
2065
2066 lockdep_assert_held(&sdata->u.mgd.mtx);
2067
2068 old_req = sdata->u.mgd.req_smps;
2069 sdata->u.mgd.req_smps = smps_mode;
2070
2071 if (old_req == smps_mode &&
2072 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2073 return 0;
2074
2075 /*
2076 * If not associated, or current association is not an HT
2077 * association, there's no need to do anything, just store
2078 * the new value until we associate.
2079 */
2080 if (!sdata->u.mgd.associated ||
2081 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT)
2082 return 0;
2083
2084 ap = sdata->u.mgd.associated->bssid;
2085
2086 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2087 if (sdata->u.mgd.powersave)
2088 smps_mode = IEEE80211_SMPS_DYNAMIC;
2089 else
2090 smps_mode = IEEE80211_SMPS_OFF;
2091 }
2092
2093 /* send SM PS frame to AP */
2094 err = ieee80211_send_smps_action(sdata, smps_mode,
2095 ap, ap);
2096 if (err)
2097 sdata->u.mgd.req_smps = old_req;
2098
2099 return err;
2100 }
2101
2102 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2103 bool enabled, int timeout)
2104 {
2105 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2106 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2107
2108 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2109 return -EOPNOTSUPP;
2110
2111 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2112 return -EOPNOTSUPP;
2113
2114 if (enabled == sdata->u.mgd.powersave &&
2115 timeout == local->dynamic_ps_forced_timeout)
2116 return 0;
2117
2118 sdata->u.mgd.powersave = enabled;
2119 local->dynamic_ps_forced_timeout = timeout;
2120
2121 /* no change, but if automatic follow powersave */
2122 mutex_lock(&sdata->u.mgd.mtx);
2123 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
2124 mutex_unlock(&sdata->u.mgd.mtx);
2125
2126 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2127 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2128
2129 ieee80211_recalc_ps(local, -1);
2130 ieee80211_recalc_ps_vif(sdata);
2131
2132 return 0;
2133 }
2134
2135 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2136 struct net_device *dev,
2137 s32 rssi_thold, u32 rssi_hyst)
2138 {
2139 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2140 struct ieee80211_vif *vif = &sdata->vif;
2141 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2142
2143 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2144 rssi_hyst == bss_conf->cqm_rssi_hyst)
2145 return 0;
2146
2147 bss_conf->cqm_rssi_thold = rssi_thold;
2148 bss_conf->cqm_rssi_hyst = rssi_hyst;
2149
2150 /* tell the driver upon association, unless already associated */
2151 if (sdata->u.mgd.associated &&
2152 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2153 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2154
2155 return 0;
2156 }
2157
2158 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2159 struct net_device *dev,
2160 const u8 *addr,
2161 const struct cfg80211_bitrate_mask *mask)
2162 {
2163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2164 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2165 int i, ret;
2166
2167 if (!ieee80211_sdata_running(sdata))
2168 return -ENETDOWN;
2169
2170 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2171 ret = drv_set_bitrate_mask(local, sdata, mask);
2172 if (ret)
2173 return ret;
2174 }
2175
2176 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2177 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2178 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
2179 sizeof(mask->control[i].mcs));
2180 }
2181
2182 return 0;
2183 }
2184
2185 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2186 struct ieee80211_sub_if_data *sdata,
2187 struct ieee80211_channel *channel,
2188 enum nl80211_channel_type channel_type,
2189 unsigned int duration, u64 *cookie,
2190 struct sk_buff *txskb)
2191 {
2192 struct ieee80211_roc_work *roc, *tmp;
2193 bool queued = false;
2194 int ret;
2195
2196 lockdep_assert_held(&local->mtx);
2197
2198 if (local->use_chanctx && !local->ops->remain_on_channel)
2199 return -EOPNOTSUPP;
2200
2201 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2202 if (!roc)
2203 return -ENOMEM;
2204
2205 roc->chan = channel;
2206 roc->chan_type = channel_type;
2207 roc->duration = duration;
2208 roc->req_duration = duration;
2209 roc->frame = txskb;
2210 roc->mgmt_tx_cookie = (unsigned long)txskb;
2211 roc->sdata = sdata;
2212 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2213 INIT_LIST_HEAD(&roc->dependents);
2214
2215 /* if there's one pending or we're scanning, queue this one */
2216 if (!list_empty(&local->roc_list) || local->scanning)
2217 goto out_check_combine;
2218
2219 /* if not HW assist, just queue & schedule work */
2220 if (!local->ops->remain_on_channel) {
2221 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2222 goto out_queue;
2223 }
2224
2225 /* otherwise actually kick it off here (for error handling) */
2226
2227 /*
2228 * If the duration is zero, then the driver
2229 * wouldn't actually do anything. Set it to
2230 * 10 for now.
2231 *
2232 * TODO: cancel the off-channel operation
2233 * when we get the SKB's TX status and
2234 * the wait time was zero before.
2235 */
2236 if (!duration)
2237 duration = 10;
2238
2239 ret = drv_remain_on_channel(local, channel, channel_type, duration);
2240 if (ret) {
2241 kfree(roc);
2242 return ret;
2243 }
2244
2245 roc->started = true;
2246 goto out_queue;
2247
2248 out_check_combine:
2249 list_for_each_entry(tmp, &local->roc_list, list) {
2250 if (tmp->chan != channel || tmp->chan_type != channel_type)
2251 continue;
2252
2253 /*
2254 * Extend this ROC if possible:
2255 *
2256 * If it hasn't started yet, just increase the duration
2257 * and add the new one to the list of dependents.
2258 */
2259 if (!tmp->started) {
2260 list_add_tail(&roc->list, &tmp->dependents);
2261 tmp->duration = max(tmp->duration, roc->duration);
2262 queued = true;
2263 break;
2264 }
2265
2266 /* If it has already started, it's more difficult ... */
2267 if (local->ops->remain_on_channel) {
2268 unsigned long j = jiffies;
2269
2270 /*
2271 * In the offloaded ROC case, if it hasn't begun, add
2272 * this new one to the dependent list to be handled
2273 * when the the master one begins. If it has begun,
2274 * check that there's still a minimum time left and
2275 * if so, start this one, transmitting the frame, but
2276 * add it to the list directly after this one with a
2277 * a reduced time so we'll ask the driver to execute
2278 * it right after finishing the previous one, in the
2279 * hope that it'll also be executed right afterwards,
2280 * effectively extending the old one.
2281 * If there's no minimum time left, just add it to the
2282 * normal list.
2283 */
2284 if (!tmp->hw_begun) {
2285 list_add_tail(&roc->list, &tmp->dependents);
2286 queued = true;
2287 break;
2288 }
2289
2290 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2291 tmp->hw_start_time +
2292 msecs_to_jiffies(tmp->duration))) {
2293 int new_dur;
2294
2295 ieee80211_handle_roc_started(roc);
2296
2297 new_dur = roc->duration -
2298 jiffies_to_msecs(tmp->hw_start_time +
2299 msecs_to_jiffies(
2300 tmp->duration) -
2301 j);
2302
2303 if (new_dur > 0) {
2304 /* add right after tmp */
2305 list_add(&roc->list, &tmp->list);
2306 } else {
2307 list_add_tail(&roc->list,
2308 &tmp->dependents);
2309 }
2310 queued = true;
2311 }
2312 } else if (del_timer_sync(&tmp->work.timer)) {
2313 unsigned long new_end;
2314
2315 /*
2316 * In the software ROC case, cancel the timer, if
2317 * that fails then the finish work is already
2318 * queued/pending and thus we queue the new ROC
2319 * normally, if that succeeds then we can extend
2320 * the timer duration and TX the frame (if any.)
2321 */
2322
2323 list_add_tail(&roc->list, &tmp->dependents);
2324 queued = true;
2325
2326 new_end = jiffies + msecs_to_jiffies(roc->duration);
2327
2328 /* ok, it was started & we canceled timer */
2329 if (time_after(new_end, tmp->work.timer.expires))
2330 mod_timer(&tmp->work.timer, new_end);
2331 else
2332 add_timer(&tmp->work.timer);
2333
2334 ieee80211_handle_roc_started(roc);
2335 }
2336 break;
2337 }
2338
2339 out_queue:
2340 if (!queued)
2341 list_add_tail(&roc->list, &local->roc_list);
2342
2343 /*
2344 * cookie is either the roc (for normal roc)
2345 * or the SKB (for mgmt TX)
2346 */
2347 if (txskb)
2348 *cookie = (unsigned long)txskb;
2349 else
2350 *cookie = (unsigned long)roc;
2351
2352 return 0;
2353 }
2354
2355 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2356 struct wireless_dev *wdev,
2357 struct ieee80211_channel *chan,
2358 enum nl80211_channel_type channel_type,
2359 unsigned int duration,
2360 u64 *cookie)
2361 {
2362 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2363 struct ieee80211_local *local = sdata->local;
2364 int ret;
2365
2366 mutex_lock(&local->mtx);
2367 ret = ieee80211_start_roc_work(local, sdata, chan, channel_type,
2368 duration, cookie, NULL);
2369 mutex_unlock(&local->mtx);
2370
2371 return ret;
2372 }
2373
2374 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2375 u64 cookie, bool mgmt_tx)
2376 {
2377 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2378 int ret;
2379
2380 mutex_lock(&local->mtx);
2381 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2382 struct ieee80211_roc_work *dep, *tmp2;
2383
2384 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2385 if (!mgmt_tx && (unsigned long)dep != cookie)
2386 continue;
2387 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2388 continue;
2389 /* found dependent item -- just remove it */
2390 list_del(&dep->list);
2391 mutex_unlock(&local->mtx);
2392
2393 ieee80211_roc_notify_destroy(dep);
2394 return 0;
2395 }
2396
2397 if (!mgmt_tx && (unsigned long)roc != cookie)
2398 continue;
2399 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2400 continue;
2401
2402 found = roc;
2403 break;
2404 }
2405
2406 if (!found) {
2407 mutex_unlock(&local->mtx);
2408 return -ENOENT;
2409 }
2410
2411 /*
2412 * We found the item to cancel, so do that. Note that it
2413 * may have dependents, which we also cancel (and send
2414 * the expired signal for.) Not doing so would be quite
2415 * tricky here, but we may need to fix it later.
2416 */
2417
2418 if (local->ops->remain_on_channel) {
2419 if (found->started) {
2420 ret = drv_cancel_remain_on_channel(local);
2421 if (WARN_ON_ONCE(ret)) {
2422 mutex_unlock(&local->mtx);
2423 return ret;
2424 }
2425 }
2426
2427 list_del(&found->list);
2428
2429 if (found->started)
2430 ieee80211_start_next_roc(local);
2431 mutex_unlock(&local->mtx);
2432
2433 ieee80211_roc_notify_destroy(found);
2434 } else {
2435 /* work may be pending so use it all the time */
2436 found->abort = true;
2437 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2438
2439 mutex_unlock(&local->mtx);
2440
2441 /* work will clean up etc */
2442 flush_delayed_work(&found->work);
2443 }
2444
2445 return 0;
2446 }
2447
2448 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2449 struct wireless_dev *wdev,
2450 u64 cookie)
2451 {
2452 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2453 struct ieee80211_local *local = sdata->local;
2454
2455 return ieee80211_cancel_roc(local, cookie, false);
2456 }
2457
2458 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
2459 struct ieee80211_channel *chan, bool offchan,
2460 enum nl80211_channel_type channel_type,
2461 bool channel_type_valid, unsigned int wait,
2462 const u8 *buf, size_t len, bool no_cck,
2463 bool dont_wait_for_ack, u64 *cookie)
2464 {
2465 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2466 struct ieee80211_local *local = sdata->local;
2467 struct sk_buff *skb;
2468 struct sta_info *sta;
2469 const struct ieee80211_mgmt *mgmt = (void *)buf;
2470 bool need_offchan = false;
2471 u32 flags;
2472 int ret;
2473
2474 if (dont_wait_for_ack)
2475 flags = IEEE80211_TX_CTL_NO_ACK;
2476 else
2477 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
2478 IEEE80211_TX_CTL_REQ_TX_STATUS;
2479
2480 if (no_cck)
2481 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
2482
2483 switch (sdata->vif.type) {
2484 case NL80211_IFTYPE_ADHOC:
2485 if (!sdata->vif.bss_conf.ibss_joined)
2486 need_offchan = true;
2487 /* fall through */
2488 #ifdef CONFIG_MAC80211_MESH
2489 case NL80211_IFTYPE_MESH_POINT:
2490 if (ieee80211_vif_is_mesh(&sdata->vif) &&
2491 !sdata->u.mesh.mesh_id_len)
2492 need_offchan = true;
2493 /* fall through */
2494 #endif
2495 case NL80211_IFTYPE_AP:
2496 case NL80211_IFTYPE_AP_VLAN:
2497 case NL80211_IFTYPE_P2P_GO:
2498 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
2499 !ieee80211_vif_is_mesh(&sdata->vif) &&
2500 !rcu_access_pointer(sdata->bss->beacon))
2501 need_offchan = true;
2502 if (!ieee80211_is_action(mgmt->frame_control) ||
2503 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
2504 break;
2505 rcu_read_lock();
2506 sta = sta_info_get(sdata, mgmt->da);
2507 rcu_read_unlock();
2508 if (!sta)
2509 return -ENOLINK;
2510 break;
2511 case NL80211_IFTYPE_STATION:
2512 case NL80211_IFTYPE_P2P_CLIENT:
2513 if (!sdata->u.mgd.associated)
2514 need_offchan = true;
2515 break;
2516 case NL80211_IFTYPE_P2P_DEVICE:
2517 need_offchan = true;
2518 break;
2519 default:
2520 return -EOPNOTSUPP;
2521 }
2522
2523 mutex_lock(&local->mtx);
2524
2525 /* Check if the operating channel is the requested channel */
2526 if (!need_offchan) {
2527 struct ieee80211_chanctx_conf *chanctx_conf;
2528
2529 rcu_read_lock();
2530 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2531
2532 if (chanctx_conf) {
2533 need_offchan = chan != chanctx_conf->channel;
2534 if (channel_type_valid &&
2535 channel_type != chanctx_conf->channel_type)
2536 need_offchan = true;
2537 } else {
2538 need_offchan = true;
2539 }
2540 rcu_read_unlock();
2541 }
2542
2543 if (need_offchan && !offchan) {
2544 ret = -EBUSY;
2545 goto out_unlock;
2546 }
2547
2548 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
2549 if (!skb) {
2550 ret = -ENOMEM;
2551 goto out_unlock;
2552 }
2553 skb_reserve(skb, local->hw.extra_tx_headroom);
2554
2555 memcpy(skb_put(skb, len), buf, len);
2556
2557 IEEE80211_SKB_CB(skb)->flags = flags;
2558
2559 skb->dev = sdata->dev;
2560
2561 if (!need_offchan) {
2562 *cookie = (unsigned long) skb;
2563 ieee80211_tx_skb(sdata, skb);
2564 ret = 0;
2565 goto out_unlock;
2566 }
2567
2568 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
2569 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
2570 IEEE80211_SKB_CB(skb)->hw_queue =
2571 local->hw.offchannel_tx_hw_queue;
2572
2573 /* This will handle all kinds of coalescing and immediate TX */
2574 ret = ieee80211_start_roc_work(local, sdata, chan, channel_type,
2575 wait, cookie, skb);
2576 if (ret)
2577 kfree_skb(skb);
2578 out_unlock:
2579 mutex_unlock(&local->mtx);
2580 return ret;
2581 }
2582
2583 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2584 struct wireless_dev *wdev,
2585 u64 cookie)
2586 {
2587 struct ieee80211_local *local = wiphy_priv(wiphy);
2588
2589 return ieee80211_cancel_roc(local, cookie, true);
2590 }
2591
2592 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2593 struct wireless_dev *wdev,
2594 u16 frame_type, bool reg)
2595 {
2596 struct ieee80211_local *local = wiphy_priv(wiphy);
2597 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2598
2599 switch (frame_type) {
2600 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH:
2601 if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
2602 struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
2603
2604 if (reg)
2605 ifibss->auth_frame_registrations++;
2606 else
2607 ifibss->auth_frame_registrations--;
2608 }
2609 break;
2610 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
2611 if (reg)
2612 local->probe_req_reg++;
2613 else
2614 local->probe_req_reg--;
2615
2616 if (!local->open_count)
2617 break;
2618
2619 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2620 break;
2621 default:
2622 break;
2623 }
2624 }
2625
2626 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2627 {
2628 struct ieee80211_local *local = wiphy_priv(wiphy);
2629
2630 if (local->started)
2631 return -EOPNOTSUPP;
2632
2633 return drv_set_antenna(local, tx_ant, rx_ant);
2634 }
2635
2636 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2637 {
2638 struct ieee80211_local *local = wiphy_priv(wiphy);
2639
2640 return drv_get_antenna(local, tx_ant, rx_ant);
2641 }
2642
2643 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2644 {
2645 struct ieee80211_local *local = wiphy_priv(wiphy);
2646
2647 return drv_set_ringparam(local, tx, rx);
2648 }
2649
2650 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2651 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2652 {
2653 struct ieee80211_local *local = wiphy_priv(wiphy);
2654
2655 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2656 }
2657
2658 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2659 struct net_device *dev,
2660 struct cfg80211_gtk_rekey_data *data)
2661 {
2662 struct ieee80211_local *local = wiphy_priv(wiphy);
2663 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2664
2665 if (!local->ops->set_rekey_data)
2666 return -EOPNOTSUPP;
2667
2668 drv_set_rekey_data(local, sdata, data);
2669
2670 return 0;
2671 }
2672
2673 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
2674 {
2675 u8 *pos = (void *)skb_put(skb, 7);
2676
2677 *pos++ = WLAN_EID_EXT_CAPABILITY;
2678 *pos++ = 5; /* len */
2679 *pos++ = 0x0;
2680 *pos++ = 0x0;
2681 *pos++ = 0x0;
2682 *pos++ = 0x0;
2683 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
2684 }
2685
2686 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
2687 {
2688 struct ieee80211_local *local = sdata->local;
2689 u16 capab;
2690
2691 capab = 0;
2692 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
2693 return capab;
2694
2695 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
2696 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
2697 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
2698 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
2699
2700 return capab;
2701 }
2702
2703 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
2704 u8 *peer, u8 *bssid)
2705 {
2706 struct ieee80211_tdls_lnkie *lnkid;
2707
2708 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
2709
2710 lnkid->ie_type = WLAN_EID_LINK_ID;
2711 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
2712
2713 memcpy(lnkid->bssid, bssid, ETH_ALEN);
2714 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
2715 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
2716 }
2717
2718 static int
2719 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
2720 u8 *peer, u8 action_code, u8 dialog_token,
2721 u16 status_code, struct sk_buff *skb)
2722 {
2723 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2724 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
2725 struct ieee80211_tdls_data *tf;
2726
2727 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
2728
2729 memcpy(tf->da, peer, ETH_ALEN);
2730 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
2731 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
2732 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
2733
2734 switch (action_code) {
2735 case WLAN_TDLS_SETUP_REQUEST:
2736 tf->category = WLAN_CATEGORY_TDLS;
2737 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
2738
2739 skb_put(skb, sizeof(tf->u.setup_req));
2740 tf->u.setup_req.dialog_token = dialog_token;
2741 tf->u.setup_req.capability =
2742 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2743
2744 ieee80211_add_srates_ie(sdata, skb, false, band);
2745 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
2746 ieee80211_tdls_add_ext_capab(skb);
2747 break;
2748 case WLAN_TDLS_SETUP_RESPONSE:
2749 tf->category = WLAN_CATEGORY_TDLS;
2750 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
2751
2752 skb_put(skb, sizeof(tf->u.setup_resp));
2753 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
2754 tf->u.setup_resp.dialog_token = dialog_token;
2755 tf->u.setup_resp.capability =
2756 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2757
2758 ieee80211_add_srates_ie(sdata, skb, false, band);
2759 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
2760 ieee80211_tdls_add_ext_capab(skb);
2761 break;
2762 case WLAN_TDLS_SETUP_CONFIRM:
2763 tf->category = WLAN_CATEGORY_TDLS;
2764 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
2765
2766 skb_put(skb, sizeof(tf->u.setup_cfm));
2767 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
2768 tf->u.setup_cfm.dialog_token = dialog_token;
2769 break;
2770 case WLAN_TDLS_TEARDOWN:
2771 tf->category = WLAN_CATEGORY_TDLS;
2772 tf->action_code = WLAN_TDLS_TEARDOWN;
2773
2774 skb_put(skb, sizeof(tf->u.teardown));
2775 tf->u.teardown.reason_code = cpu_to_le16(status_code);
2776 break;
2777 case WLAN_TDLS_DISCOVERY_REQUEST:
2778 tf->category = WLAN_CATEGORY_TDLS;
2779 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
2780
2781 skb_put(skb, sizeof(tf->u.discover_req));
2782 tf->u.discover_req.dialog_token = dialog_token;
2783 break;
2784 default:
2785 return -EINVAL;
2786 }
2787
2788 return 0;
2789 }
2790
2791 static int
2792 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
2793 u8 *peer, u8 action_code, u8 dialog_token,
2794 u16 status_code, struct sk_buff *skb)
2795 {
2796 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2797 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
2798 struct ieee80211_mgmt *mgmt;
2799
2800 mgmt = (void *)skb_put(skb, 24);
2801 memset(mgmt, 0, 24);
2802 memcpy(mgmt->da, peer, ETH_ALEN);
2803 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
2804 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
2805
2806 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2807 IEEE80211_STYPE_ACTION);
2808
2809 switch (action_code) {
2810 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2811 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
2812 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
2813 mgmt->u.action.u.tdls_discover_resp.action_code =
2814 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
2815 mgmt->u.action.u.tdls_discover_resp.dialog_token =
2816 dialog_token;
2817 mgmt->u.action.u.tdls_discover_resp.capability =
2818 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2819
2820 ieee80211_add_srates_ie(sdata, skb, false, band);
2821 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
2822 ieee80211_tdls_add_ext_capab(skb);
2823 break;
2824 default:
2825 return -EINVAL;
2826 }
2827
2828 return 0;
2829 }
2830
2831 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2832 u8 *peer, u8 action_code, u8 dialog_token,
2833 u16 status_code, const u8 *extra_ies,
2834 size_t extra_ies_len)
2835 {
2836 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2837 struct ieee80211_local *local = sdata->local;
2838 struct sk_buff *skb = NULL;
2839 bool send_direct;
2840 int ret;
2841
2842 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2843 return -ENOTSUPP;
2844
2845 /* make sure we are in managed mode, and associated */
2846 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
2847 !sdata->u.mgd.associated)
2848 return -EINVAL;
2849
2850 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
2851 action_code, peer);
2852
2853 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
2854 max(sizeof(struct ieee80211_mgmt),
2855 sizeof(struct ieee80211_tdls_data)) +
2856 50 + /* supported rates */
2857 7 + /* ext capab */
2858 extra_ies_len +
2859 sizeof(struct ieee80211_tdls_lnkie));
2860 if (!skb)
2861 return -ENOMEM;
2862
2863 skb_reserve(skb, local->hw.extra_tx_headroom);
2864
2865 switch (action_code) {
2866 case WLAN_TDLS_SETUP_REQUEST:
2867 case WLAN_TDLS_SETUP_RESPONSE:
2868 case WLAN_TDLS_SETUP_CONFIRM:
2869 case WLAN_TDLS_TEARDOWN:
2870 case WLAN_TDLS_DISCOVERY_REQUEST:
2871 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
2872 action_code, dialog_token,
2873 status_code, skb);
2874 send_direct = false;
2875 break;
2876 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2877 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
2878 dialog_token, status_code,
2879 skb);
2880 send_direct = true;
2881 break;
2882 default:
2883 ret = -ENOTSUPP;
2884 break;
2885 }
2886
2887 if (ret < 0)
2888 goto fail;
2889
2890 if (extra_ies_len)
2891 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
2892
2893 /* the TDLS link IE is always added last */
2894 switch (action_code) {
2895 case WLAN_TDLS_SETUP_REQUEST:
2896 case WLAN_TDLS_SETUP_CONFIRM:
2897 case WLAN_TDLS_TEARDOWN:
2898 case WLAN_TDLS_DISCOVERY_REQUEST:
2899 /* we are the initiator */
2900 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
2901 sdata->u.mgd.bssid);
2902 break;
2903 case WLAN_TDLS_SETUP_RESPONSE:
2904 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2905 /* we are the responder */
2906 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
2907 sdata->u.mgd.bssid);
2908 break;
2909 default:
2910 ret = -ENOTSUPP;
2911 goto fail;
2912 }
2913
2914 if (send_direct) {
2915 ieee80211_tx_skb(sdata, skb);
2916 return 0;
2917 }
2918
2919 /*
2920 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
2921 * we should default to AC_VI.
2922 */
2923 switch (action_code) {
2924 case WLAN_TDLS_SETUP_REQUEST:
2925 case WLAN_TDLS_SETUP_RESPONSE:
2926 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
2927 skb->priority = 2;
2928 break;
2929 default:
2930 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
2931 skb->priority = 5;
2932 break;
2933 }
2934
2935 /* disable bottom halves when entering the Tx path */
2936 local_bh_disable();
2937 ret = ieee80211_subif_start_xmit(skb, dev);
2938 local_bh_enable();
2939
2940 return ret;
2941
2942 fail:
2943 dev_kfree_skb(skb);
2944 return ret;
2945 }
2946
2947 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2948 u8 *peer, enum nl80211_tdls_operation oper)
2949 {
2950 struct sta_info *sta;
2951 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2952
2953 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2954 return -ENOTSUPP;
2955
2956 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2957 return -EINVAL;
2958
2959 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
2960
2961 switch (oper) {
2962 case NL80211_TDLS_ENABLE_LINK:
2963 rcu_read_lock();
2964 sta = sta_info_get(sdata, peer);
2965 if (!sta) {
2966 rcu_read_unlock();
2967 return -ENOLINK;
2968 }
2969
2970 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
2971 rcu_read_unlock();
2972 break;
2973 case NL80211_TDLS_DISABLE_LINK:
2974 return sta_info_destroy_addr(sdata, peer);
2975 case NL80211_TDLS_TEARDOWN:
2976 case NL80211_TDLS_SETUP:
2977 case NL80211_TDLS_DISCOVERY_REQ:
2978 /* We don't support in-driver setup/teardown/discovery */
2979 return -ENOTSUPP;
2980 default:
2981 return -ENOTSUPP;
2982 }
2983
2984 return 0;
2985 }
2986
2987 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
2988 const u8 *peer, u64 *cookie)
2989 {
2990 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2991 struct ieee80211_local *local = sdata->local;
2992 struct ieee80211_qos_hdr *nullfunc;
2993 struct sk_buff *skb;
2994 int size = sizeof(*nullfunc);
2995 __le16 fc;
2996 bool qos;
2997 struct ieee80211_tx_info *info;
2998 struct sta_info *sta;
2999 struct ieee80211_chanctx_conf *chanctx_conf;
3000 enum ieee80211_band band;
3001
3002 rcu_read_lock();
3003 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3004 if (WARN_ON(!chanctx_conf)) {
3005 rcu_read_unlock();
3006 return -EINVAL;
3007 }
3008 band = chanctx_conf->channel->band;
3009 sta = sta_info_get(sdata, peer);
3010 if (sta) {
3011 qos = test_sta_flag(sta, WLAN_STA_WME);
3012 } else {
3013 rcu_read_unlock();
3014 return -ENOLINK;
3015 }
3016
3017 if (qos) {
3018 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3019 IEEE80211_STYPE_QOS_NULLFUNC |
3020 IEEE80211_FCTL_FROMDS);
3021 } else {
3022 size -= 2;
3023 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3024 IEEE80211_STYPE_NULLFUNC |
3025 IEEE80211_FCTL_FROMDS);
3026 }
3027
3028 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3029 if (!skb) {
3030 rcu_read_unlock();
3031 return -ENOMEM;
3032 }
3033
3034 skb->dev = dev;
3035
3036 skb_reserve(skb, local->hw.extra_tx_headroom);
3037
3038 nullfunc = (void *) skb_put(skb, size);
3039 nullfunc->frame_control = fc;
3040 nullfunc->duration_id = 0;
3041 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3042 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3043 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3044 nullfunc->seq_ctrl = 0;
3045
3046 info = IEEE80211_SKB_CB(skb);
3047
3048 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3049 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3050
3051 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3052 skb->priority = 7;
3053 if (qos)
3054 nullfunc->qos_ctrl = cpu_to_le16(7);
3055
3056 local_bh_disable();
3057 ieee80211_xmit(sdata, skb, band);
3058 local_bh_enable();
3059 rcu_read_unlock();
3060
3061 *cookie = (unsigned long) skb;
3062 return 0;
3063 }
3064
3065 static struct ieee80211_channel *
3066 ieee80211_cfg_get_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
3067 enum nl80211_channel_type *type)
3068 {
3069 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3070 struct ieee80211_chanctx_conf *chanctx_conf;
3071 struct ieee80211_channel *chan = NULL;
3072
3073 rcu_read_lock();
3074 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3075 if (chanctx_conf) {
3076 *type = chanctx_conf->channel_type;
3077 chan = chanctx_conf->channel;
3078 }
3079 rcu_read_unlock();
3080
3081 return chan;
3082 }
3083
3084 #ifdef CONFIG_PM
3085 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3086 {
3087 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3088 }
3089 #endif
3090
3091 struct cfg80211_ops mac80211_config_ops = {
3092 .add_virtual_intf = ieee80211_add_iface,
3093 .del_virtual_intf = ieee80211_del_iface,
3094 .change_virtual_intf = ieee80211_change_iface,
3095 .start_p2p_device = ieee80211_start_p2p_device,
3096 .stop_p2p_device = ieee80211_stop_p2p_device,
3097 .add_key = ieee80211_add_key,
3098 .del_key = ieee80211_del_key,
3099 .get_key = ieee80211_get_key,
3100 .set_default_key = ieee80211_config_default_key,
3101 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3102 .start_ap = ieee80211_start_ap,
3103 .change_beacon = ieee80211_change_beacon,
3104 .stop_ap = ieee80211_stop_ap,
3105 .add_station = ieee80211_add_station,
3106 .del_station = ieee80211_del_station,
3107 .change_station = ieee80211_change_station,
3108 .get_station = ieee80211_get_station,
3109 .dump_station = ieee80211_dump_station,
3110 .dump_survey = ieee80211_dump_survey,
3111 #ifdef CONFIG_MAC80211_MESH
3112 .add_mpath = ieee80211_add_mpath,
3113 .del_mpath = ieee80211_del_mpath,
3114 .change_mpath = ieee80211_change_mpath,
3115 .get_mpath = ieee80211_get_mpath,
3116 .dump_mpath = ieee80211_dump_mpath,
3117 .update_mesh_config = ieee80211_update_mesh_config,
3118 .get_mesh_config = ieee80211_get_mesh_config,
3119 .join_mesh = ieee80211_join_mesh,
3120 .leave_mesh = ieee80211_leave_mesh,
3121 #endif
3122 .change_bss = ieee80211_change_bss,
3123 .set_txq_params = ieee80211_set_txq_params,
3124 .set_monitor_channel = ieee80211_set_monitor_channel,
3125 .suspend = ieee80211_suspend,
3126 .resume = ieee80211_resume,
3127 .scan = ieee80211_scan,
3128 .sched_scan_start = ieee80211_sched_scan_start,
3129 .sched_scan_stop = ieee80211_sched_scan_stop,
3130 .auth = ieee80211_auth,
3131 .assoc = ieee80211_assoc,
3132 .deauth = ieee80211_deauth,
3133 .disassoc = ieee80211_disassoc,
3134 .join_ibss = ieee80211_join_ibss,
3135 .leave_ibss = ieee80211_leave_ibss,
3136 .set_wiphy_params = ieee80211_set_wiphy_params,
3137 .set_tx_power = ieee80211_set_tx_power,
3138 .get_tx_power = ieee80211_get_tx_power,
3139 .set_wds_peer = ieee80211_set_wds_peer,
3140 .rfkill_poll = ieee80211_rfkill_poll,
3141 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3142 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3143 .set_power_mgmt = ieee80211_set_power_mgmt,
3144 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3145 .remain_on_channel = ieee80211_remain_on_channel,
3146 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3147 .mgmt_tx = ieee80211_mgmt_tx,
3148 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3149 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3150 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3151 .set_antenna = ieee80211_set_antenna,
3152 .get_antenna = ieee80211_get_antenna,
3153 .set_ringparam = ieee80211_set_ringparam,
3154 .get_ringparam = ieee80211_get_ringparam,
3155 .set_rekey_data = ieee80211_set_rekey_data,
3156 .tdls_oper = ieee80211_tdls_oper,
3157 .tdls_mgmt = ieee80211_tdls_mgmt,
3158 .probe_client = ieee80211_probe_client,
3159 .set_noack_map = ieee80211_set_noack_map,
3160 #ifdef CONFIG_PM
3161 .set_wakeup = ieee80211_set_wakeup,
3162 #endif
3163 .get_et_sset_count = ieee80211_get_et_sset_count,
3164 .get_et_stats = ieee80211_get_et_stats,
3165 .get_et_strings = ieee80211_get_et_strings,
3166 .get_channel = ieee80211_cfg_get_channel,
3167 };
CJK support for tty framebuffer vt