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cfg80211/nl80211: add support for scheduled scans
[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
9 #include <linux/ieee80211.h>
10 #include <linux/nl80211.h>
11 #include <linux/rtnetlink.h>
12 #include <linux/slab.h>
13 #include <net/net_namespace.h>
14 #include <linux/rcupdate.h>
15 #include <net/cfg80211.h>
16 #include "ieee80211_i.h"
17 #include "driver-ops.h"
18 #include "cfg.h"
19 #include "rate.h"
20 #include "mesh.h"
21
22 static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name,
23 enum nl80211_iftype type,
24 u32 *flags,
25 struct vif_params *params)
26 {
27 struct ieee80211_local *local = wiphy_priv(wiphy);
28 struct net_device *dev;
29 struct ieee80211_sub_if_data *sdata;
30 int err;
31
32 err = ieee80211_if_add(local, name, &dev, type, params);
33 if (err)
34 return ERR_PTR(err);
35
36 if (type == NL80211_IFTYPE_MONITOR && flags) {
37 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
38 sdata->u.mntr_flags = *flags;
39 }
40
41 return dev;
42 }
43
44 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
45 {
46 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
47
48 return 0;
49 }
50
51 static int ieee80211_change_iface(struct wiphy *wiphy,
52 struct net_device *dev,
53 enum nl80211_iftype type, u32 *flags,
54 struct vif_params *params)
55 {
56 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
57 int ret;
58
59 ret = ieee80211_if_change_type(sdata, type);
60 if (ret)
61 return ret;
62
63 if (type == NL80211_IFTYPE_AP_VLAN &&
64 params && params->use_4addr == 0)
65 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
66 else if (type == NL80211_IFTYPE_STATION &&
67 params && params->use_4addr >= 0)
68 sdata->u.mgd.use_4addr = params->use_4addr;
69
70 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
71 struct ieee80211_local *local = sdata->local;
72
73 if (ieee80211_sdata_running(sdata)) {
74 /*
75 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
76 * changed while the interface is up.
77 * Else we would need to add a lot of cruft
78 * to update everything:
79 * cooked_mntrs, monitor and all fif_* counters
80 * reconfigure hardware
81 */
82 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
83 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
84 return -EBUSY;
85
86 ieee80211_adjust_monitor_flags(sdata, -1);
87 sdata->u.mntr_flags = *flags;
88 ieee80211_adjust_monitor_flags(sdata, 1);
89
90 ieee80211_configure_filter(local);
91 } else {
92 /*
93 * Because the interface is down, ieee80211_do_stop
94 * and ieee80211_do_open take care of "everything"
95 * mentioned in the comment above.
96 */
97 sdata->u.mntr_flags = *flags;
98 }
99 }
100
101 return 0;
102 }
103
104 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
105 u8 key_idx, bool pairwise, const u8 *mac_addr,
106 struct key_params *params)
107 {
108 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
109 struct sta_info *sta = NULL;
110 struct ieee80211_key *key;
111 int err;
112
113 if (!ieee80211_sdata_running(sdata))
114 return -ENETDOWN;
115
116 /* reject WEP and TKIP keys if WEP failed to initialize */
117 switch (params->cipher) {
118 case WLAN_CIPHER_SUITE_WEP40:
119 case WLAN_CIPHER_SUITE_TKIP:
120 case WLAN_CIPHER_SUITE_WEP104:
121 if (IS_ERR(sdata->local->wep_tx_tfm))
122 return -EINVAL;
123 break;
124 default:
125 break;
126 }
127
128 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
129 params->key, params->seq_len, params->seq);
130 if (IS_ERR(key))
131 return PTR_ERR(key);
132
133 if (pairwise)
134 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
135
136 mutex_lock(&sdata->local->sta_mtx);
137
138 if (mac_addr) {
139 if (ieee80211_vif_is_mesh(&sdata->vif))
140 sta = sta_info_get(sdata, mac_addr);
141 else
142 sta = sta_info_get_bss(sdata, mac_addr);
143 if (!sta) {
144 ieee80211_key_free(sdata->local, key);
145 err = -ENOENT;
146 goto out_unlock;
147 }
148 }
149
150 err = ieee80211_key_link(key, sdata, sta);
151 if (err)
152 ieee80211_key_free(sdata->local, key);
153
154 out_unlock:
155 mutex_unlock(&sdata->local->sta_mtx);
156
157 return err;
158 }
159
160 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
161 u8 key_idx, bool pairwise, const u8 *mac_addr)
162 {
163 struct ieee80211_sub_if_data *sdata;
164 struct sta_info *sta;
165 int ret;
166
167 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
168
169 mutex_lock(&sdata->local->sta_mtx);
170
171 if (mac_addr) {
172 ret = -ENOENT;
173
174 sta = sta_info_get_bss(sdata, mac_addr);
175 if (!sta)
176 goto out_unlock;
177
178 if (pairwise) {
179 if (sta->ptk) {
180 ieee80211_key_free(sdata->local, sta->ptk);
181 ret = 0;
182 }
183 } else {
184 if (sta->gtk[key_idx]) {
185 ieee80211_key_free(sdata->local,
186 sta->gtk[key_idx]);
187 ret = 0;
188 }
189 }
190
191 goto out_unlock;
192 }
193
194 if (!sdata->keys[key_idx]) {
195 ret = -ENOENT;
196 goto out_unlock;
197 }
198
199 ieee80211_key_free(sdata->local, sdata->keys[key_idx]);
200 WARN_ON(sdata->keys[key_idx]);
201
202 ret = 0;
203 out_unlock:
204 mutex_unlock(&sdata->local->sta_mtx);
205
206 return ret;
207 }
208
209 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
210 u8 key_idx, bool pairwise, const u8 *mac_addr,
211 void *cookie,
212 void (*callback)(void *cookie,
213 struct key_params *params))
214 {
215 struct ieee80211_sub_if_data *sdata;
216 struct sta_info *sta = NULL;
217 u8 seq[6] = {0};
218 struct key_params params;
219 struct ieee80211_key *key = NULL;
220 u32 iv32;
221 u16 iv16;
222 int err = -ENOENT;
223
224 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
225
226 rcu_read_lock();
227
228 if (mac_addr) {
229 sta = sta_info_get_bss(sdata, mac_addr);
230 if (!sta)
231 goto out;
232
233 if (pairwise)
234 key = sta->ptk;
235 else if (key_idx < NUM_DEFAULT_KEYS)
236 key = sta->gtk[key_idx];
237 } else
238 key = sdata->keys[key_idx];
239
240 if (!key)
241 goto out;
242
243 memset(&params, 0, sizeof(params));
244
245 params.cipher = key->conf.cipher;
246
247 switch (key->conf.cipher) {
248 case WLAN_CIPHER_SUITE_TKIP:
249 iv32 = key->u.tkip.tx.iv32;
250 iv16 = key->u.tkip.tx.iv16;
251
252 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
253 drv_get_tkip_seq(sdata->local,
254 key->conf.hw_key_idx,
255 &iv32, &iv16);
256
257 seq[0] = iv16 & 0xff;
258 seq[1] = (iv16 >> 8) & 0xff;
259 seq[2] = iv32 & 0xff;
260 seq[3] = (iv32 >> 8) & 0xff;
261 seq[4] = (iv32 >> 16) & 0xff;
262 seq[5] = (iv32 >> 24) & 0xff;
263 params.seq = seq;
264 params.seq_len = 6;
265 break;
266 case WLAN_CIPHER_SUITE_CCMP:
267 seq[0] = key->u.ccmp.tx_pn[5];
268 seq[1] = key->u.ccmp.tx_pn[4];
269 seq[2] = key->u.ccmp.tx_pn[3];
270 seq[3] = key->u.ccmp.tx_pn[2];
271 seq[4] = key->u.ccmp.tx_pn[1];
272 seq[5] = key->u.ccmp.tx_pn[0];
273 params.seq = seq;
274 params.seq_len = 6;
275 break;
276 case WLAN_CIPHER_SUITE_AES_CMAC:
277 seq[0] = key->u.aes_cmac.tx_pn[5];
278 seq[1] = key->u.aes_cmac.tx_pn[4];
279 seq[2] = key->u.aes_cmac.tx_pn[3];
280 seq[3] = key->u.aes_cmac.tx_pn[2];
281 seq[4] = key->u.aes_cmac.tx_pn[1];
282 seq[5] = key->u.aes_cmac.tx_pn[0];
283 params.seq = seq;
284 params.seq_len = 6;
285 break;
286 }
287
288 params.key = key->conf.key;
289 params.key_len = key->conf.keylen;
290
291 callback(cookie, &params);
292 err = 0;
293
294 out:
295 rcu_read_unlock();
296 return err;
297 }
298
299 static int ieee80211_config_default_key(struct wiphy *wiphy,
300 struct net_device *dev,
301 u8 key_idx, bool uni,
302 bool multi)
303 {
304 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
305
306 ieee80211_set_default_key(sdata, key_idx, uni, multi);
307
308 return 0;
309 }
310
311 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
312 struct net_device *dev,
313 u8 key_idx)
314 {
315 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
316
317 ieee80211_set_default_mgmt_key(sdata, key_idx);
318
319 return 0;
320 }
321
322 static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
323 {
324 if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
325 struct ieee80211_supported_band *sband;
326 sband = sta->local->hw.wiphy->bands[
327 sta->local->hw.conf.channel->band];
328 rate->legacy = sband->bitrates[idx].bitrate;
329 } else
330 rate->mcs = idx;
331 }
332
333 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
334 {
335 struct ieee80211_sub_if_data *sdata = sta->sdata;
336 struct timespec uptime;
337
338 sinfo->generation = sdata->local->sta_generation;
339
340 sinfo->filled = STATION_INFO_INACTIVE_TIME |
341 STATION_INFO_RX_BYTES |
342 STATION_INFO_TX_BYTES |
343 STATION_INFO_RX_PACKETS |
344 STATION_INFO_TX_PACKETS |
345 STATION_INFO_TX_RETRIES |
346 STATION_INFO_TX_FAILED |
347 STATION_INFO_TX_BITRATE |
348 STATION_INFO_RX_BITRATE |
349 STATION_INFO_RX_DROP_MISC |
350 STATION_INFO_BSS_PARAM |
351 STATION_INFO_CONNECTED_TIME;
352
353 do_posix_clock_monotonic_gettime(&uptime);
354 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
355
356 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
357 sinfo->rx_bytes = sta->rx_bytes;
358 sinfo->tx_bytes = sta->tx_bytes;
359 sinfo->rx_packets = sta->rx_packets;
360 sinfo->tx_packets = sta->tx_packets;
361 sinfo->tx_retries = sta->tx_retry_count;
362 sinfo->tx_failed = sta->tx_retry_failed;
363 sinfo->rx_dropped_misc = sta->rx_dropped;
364
365 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
366 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
367 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
368 sinfo->signal = (s8)sta->last_signal;
369 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
370 }
371
372 sinfo->txrate.flags = 0;
373 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
374 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
375 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
376 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
377 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
378 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
379 rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx);
380
381 sinfo->rxrate.flags = 0;
382 if (sta->last_rx_rate_flag & RX_FLAG_HT)
383 sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
384 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
385 sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
386 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
387 sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
388 rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
389
390 if (ieee80211_vif_is_mesh(&sdata->vif)) {
391 #ifdef CONFIG_MAC80211_MESH
392 sinfo->filled |= STATION_INFO_LLID |
393 STATION_INFO_PLID |
394 STATION_INFO_PLINK_STATE;
395
396 sinfo->llid = le16_to_cpu(sta->llid);
397 sinfo->plid = le16_to_cpu(sta->plid);
398 sinfo->plink_state = sta->plink_state;
399 #endif
400 }
401
402 sinfo->bss_param.flags = 0;
403 if (sdata->vif.bss_conf.use_cts_prot)
404 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
405 if (sdata->vif.bss_conf.use_short_preamble)
406 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
407 if (sdata->vif.bss_conf.use_short_slot)
408 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
409 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
410 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
411 }
412
413
414 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
415 int idx, u8 *mac, struct station_info *sinfo)
416 {
417 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
418 struct sta_info *sta;
419 int ret = -ENOENT;
420
421 rcu_read_lock();
422
423 sta = sta_info_get_by_idx(sdata, idx);
424 if (sta) {
425 ret = 0;
426 memcpy(mac, sta->sta.addr, ETH_ALEN);
427 sta_set_sinfo(sta, sinfo);
428 }
429
430 rcu_read_unlock();
431
432 return ret;
433 }
434
435 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
436 int idx, struct survey_info *survey)
437 {
438 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
439
440 return drv_get_survey(local, idx, survey);
441 }
442
443 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
444 u8 *mac, struct station_info *sinfo)
445 {
446 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
447 struct sta_info *sta;
448 int ret = -ENOENT;
449
450 rcu_read_lock();
451
452 sta = sta_info_get_bss(sdata, mac);
453 if (sta) {
454 ret = 0;
455 sta_set_sinfo(sta, sinfo);
456 }
457
458 rcu_read_unlock();
459
460 return ret;
461 }
462
463 /*
464 * This handles both adding a beacon and setting new beacon info
465 */
466 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
467 struct beacon_parameters *params)
468 {
469 struct beacon_data *new, *old;
470 int new_head_len, new_tail_len;
471 int size;
472 int err = -EINVAL;
473
474 old = sdata->u.ap.beacon;
475
476 /* head must not be zero-length */
477 if (params->head && !params->head_len)
478 return -EINVAL;
479
480 /*
481 * This is a kludge. beacon interval should really be part
482 * of the beacon information.
483 */
484 if (params->interval &&
485 (sdata->vif.bss_conf.beacon_int != params->interval)) {
486 sdata->vif.bss_conf.beacon_int = params->interval;
487 ieee80211_bss_info_change_notify(sdata,
488 BSS_CHANGED_BEACON_INT);
489 }
490
491 /* Need to have a beacon head if we don't have one yet */
492 if (!params->head && !old)
493 return err;
494
495 /* sorry, no way to start beaconing without dtim period */
496 if (!params->dtim_period && !old)
497 return err;
498
499 /* new or old head? */
500 if (params->head)
501 new_head_len = params->head_len;
502 else
503 new_head_len = old->head_len;
504
505 /* new or old tail? */
506 if (params->tail || !old)
507 /* params->tail_len will be zero for !params->tail */
508 new_tail_len = params->tail_len;
509 else
510 new_tail_len = old->tail_len;
511
512 size = sizeof(*new) + new_head_len + new_tail_len;
513
514 new = kzalloc(size, GFP_KERNEL);
515 if (!new)
516 return -ENOMEM;
517
518 /* start filling the new info now */
519
520 /* new or old dtim period? */
521 if (params->dtim_period)
522 new->dtim_period = params->dtim_period;
523 else
524 new->dtim_period = old->dtim_period;
525
526 /*
527 * pointers go into the block we allocated,
528 * memory is | beacon_data | head | tail |
529 */
530 new->head = ((u8 *) new) + sizeof(*new);
531 new->tail = new->head + new_head_len;
532 new->head_len = new_head_len;
533 new->tail_len = new_tail_len;
534
535 /* copy in head */
536 if (params->head)
537 memcpy(new->head, params->head, new_head_len);
538 else
539 memcpy(new->head, old->head, new_head_len);
540
541 /* copy in optional tail */
542 if (params->tail)
543 memcpy(new->tail, params->tail, new_tail_len);
544 else
545 if (old)
546 memcpy(new->tail, old->tail, new_tail_len);
547
548 sdata->vif.bss_conf.dtim_period = new->dtim_period;
549
550 rcu_assign_pointer(sdata->u.ap.beacon, new);
551
552 synchronize_rcu();
553
554 kfree(old);
555
556 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
557 BSS_CHANGED_BEACON);
558 return 0;
559 }
560
561 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
562 struct beacon_parameters *params)
563 {
564 struct ieee80211_sub_if_data *sdata;
565 struct beacon_data *old;
566
567 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
568
569 old = sdata->u.ap.beacon;
570
571 if (old)
572 return -EALREADY;
573
574 return ieee80211_config_beacon(sdata, params);
575 }
576
577 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
578 struct beacon_parameters *params)
579 {
580 struct ieee80211_sub_if_data *sdata;
581 struct beacon_data *old;
582
583 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
584
585 old = sdata->u.ap.beacon;
586
587 if (!old)
588 return -ENOENT;
589
590 return ieee80211_config_beacon(sdata, params);
591 }
592
593 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
594 {
595 struct ieee80211_sub_if_data *sdata;
596 struct beacon_data *old;
597
598 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
599
600 old = sdata->u.ap.beacon;
601
602 if (!old)
603 return -ENOENT;
604
605 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
606 synchronize_rcu();
607 kfree(old);
608
609 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
610 return 0;
611 }
612
613 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
614 struct iapp_layer2_update {
615 u8 da[ETH_ALEN]; /* broadcast */
616 u8 sa[ETH_ALEN]; /* STA addr */
617 __be16 len; /* 6 */
618 u8 dsap; /* 0 */
619 u8 ssap; /* 0 */
620 u8 control;
621 u8 xid_info[3];
622 } __packed;
623
624 static void ieee80211_send_layer2_update(struct sta_info *sta)
625 {
626 struct iapp_layer2_update *msg;
627 struct sk_buff *skb;
628
629 /* Send Level 2 Update Frame to update forwarding tables in layer 2
630 * bridge devices */
631
632 skb = dev_alloc_skb(sizeof(*msg));
633 if (!skb)
634 return;
635 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
636
637 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
638 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
639
640 memset(msg->da, 0xff, ETH_ALEN);
641 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
642 msg->len = htons(6);
643 msg->dsap = 0;
644 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
645 msg->control = 0xaf; /* XID response lsb.1111F101.
646 * F=0 (no poll command; unsolicited frame) */
647 msg->xid_info[0] = 0x81; /* XID format identifier */
648 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
649 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
650
651 skb->dev = sta->sdata->dev;
652 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
653 memset(skb->cb, 0, sizeof(skb->cb));
654 netif_rx_ni(skb);
655 }
656
657 static void sta_apply_parameters(struct ieee80211_local *local,
658 struct sta_info *sta,
659 struct station_parameters *params)
660 {
661 unsigned long flags;
662 u32 rates;
663 int i, j;
664 struct ieee80211_supported_band *sband;
665 struct ieee80211_sub_if_data *sdata = sta->sdata;
666 u32 mask, set;
667
668 sband = local->hw.wiphy->bands[local->oper_channel->band];
669
670 spin_lock_irqsave(&sta->flaglock, flags);
671 mask = params->sta_flags_mask;
672 set = params->sta_flags_set;
673
674 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
675 sta->flags &= ~WLAN_STA_AUTHORIZED;
676 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
677 sta->flags |= WLAN_STA_AUTHORIZED;
678 }
679
680 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
681 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
682 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
683 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
684 }
685
686 if (mask & BIT(NL80211_STA_FLAG_WME)) {
687 sta->flags &= ~WLAN_STA_WME;
688 if (set & BIT(NL80211_STA_FLAG_WME))
689 sta->flags |= WLAN_STA_WME;
690 }
691
692 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
693 sta->flags &= ~WLAN_STA_MFP;
694 if (set & BIT(NL80211_STA_FLAG_MFP))
695 sta->flags |= WLAN_STA_MFP;
696 }
697
698 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
699 sta->flags &= ~WLAN_STA_AUTH;
700 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
701 sta->flags |= WLAN_STA_AUTH;
702 }
703 spin_unlock_irqrestore(&sta->flaglock, flags);
704
705 /*
706 * cfg80211 validates this (1-2007) and allows setting the AID
707 * only when creating a new station entry
708 */
709 if (params->aid)
710 sta->sta.aid = params->aid;
711
712 /*
713 * FIXME: updating the following information is racy when this
714 * function is called from ieee80211_change_station().
715 * However, all this information should be static so
716 * maybe we should just reject attemps to change it.
717 */
718
719 if (params->listen_interval >= 0)
720 sta->listen_interval = params->listen_interval;
721
722 if (params->supported_rates) {
723 rates = 0;
724
725 for (i = 0; i < params->supported_rates_len; i++) {
726 int rate = (params->supported_rates[i] & 0x7f) * 5;
727 for (j = 0; j < sband->n_bitrates; j++) {
728 if (sband->bitrates[j].bitrate == rate)
729 rates |= BIT(j);
730 }
731 }
732 sta->sta.supp_rates[local->oper_channel->band] = rates;
733 }
734
735 if (params->ht_capa)
736 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
737 params->ht_capa,
738 &sta->sta.ht_cap);
739
740 if (ieee80211_vif_is_mesh(&sdata->vif)) {
741 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
742 switch (params->plink_state) {
743 case PLINK_LISTEN:
744 case PLINK_ESTAB:
745 case PLINK_BLOCKED:
746 sta->plink_state = params->plink_state;
747 break;
748 default:
749 /* nothing */
750 break;
751 }
752 else
753 switch (params->plink_action) {
754 case PLINK_ACTION_OPEN:
755 mesh_plink_open(sta);
756 break;
757 case PLINK_ACTION_BLOCK:
758 mesh_plink_block(sta);
759 break;
760 }
761 }
762 }
763
764 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
765 u8 *mac, struct station_parameters *params)
766 {
767 struct ieee80211_local *local = wiphy_priv(wiphy);
768 struct sta_info *sta;
769 struct ieee80211_sub_if_data *sdata;
770 int err;
771 int layer2_update;
772
773 if (params->vlan) {
774 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
775
776 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
777 sdata->vif.type != NL80211_IFTYPE_AP)
778 return -EINVAL;
779 } else
780 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
781
782 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
783 return -EINVAL;
784
785 if (is_multicast_ether_addr(mac))
786 return -EINVAL;
787
788 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
789 if (!sta)
790 return -ENOMEM;
791
792 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
793
794 sta_apply_parameters(local, sta, params);
795
796 rate_control_rate_init(sta);
797
798 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
799 sdata->vif.type == NL80211_IFTYPE_AP;
800
801 err = sta_info_insert_rcu(sta);
802 if (err) {
803 rcu_read_unlock();
804 return err;
805 }
806
807 if (layer2_update)
808 ieee80211_send_layer2_update(sta);
809
810 rcu_read_unlock();
811
812 return 0;
813 }
814
815 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
816 u8 *mac)
817 {
818 struct ieee80211_local *local = wiphy_priv(wiphy);
819 struct ieee80211_sub_if_data *sdata;
820
821 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
822
823 if (mac)
824 return sta_info_destroy_addr_bss(sdata, mac);
825
826 sta_info_flush(local, sdata);
827 return 0;
828 }
829
830 static int ieee80211_change_station(struct wiphy *wiphy,
831 struct net_device *dev,
832 u8 *mac,
833 struct station_parameters *params)
834 {
835 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
836 struct ieee80211_local *local = wiphy_priv(wiphy);
837 struct sta_info *sta;
838 struct ieee80211_sub_if_data *vlansdata;
839
840 rcu_read_lock();
841
842 sta = sta_info_get_bss(sdata, mac);
843 if (!sta) {
844 rcu_read_unlock();
845 return -ENOENT;
846 }
847
848 if (params->vlan && params->vlan != sta->sdata->dev) {
849 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
850
851 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
852 vlansdata->vif.type != NL80211_IFTYPE_AP) {
853 rcu_read_unlock();
854 return -EINVAL;
855 }
856
857 if (params->vlan->ieee80211_ptr->use_4addr) {
858 if (vlansdata->u.vlan.sta) {
859 rcu_read_unlock();
860 return -EBUSY;
861 }
862
863 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
864 }
865
866 sta->sdata = vlansdata;
867 ieee80211_send_layer2_update(sta);
868 }
869
870 sta_apply_parameters(local, sta, params);
871
872 rcu_read_unlock();
873
874 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
875 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
876 ieee80211_recalc_ps(local, -1);
877
878 return 0;
879 }
880
881 #ifdef CONFIG_MAC80211_MESH
882 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
883 u8 *dst, u8 *next_hop)
884 {
885 struct ieee80211_sub_if_data *sdata;
886 struct mesh_path *mpath;
887 struct sta_info *sta;
888 int err;
889
890 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
891
892 rcu_read_lock();
893 sta = sta_info_get(sdata, next_hop);
894 if (!sta) {
895 rcu_read_unlock();
896 return -ENOENT;
897 }
898
899 err = mesh_path_add(dst, sdata);
900 if (err) {
901 rcu_read_unlock();
902 return err;
903 }
904
905 mpath = mesh_path_lookup(dst, sdata);
906 if (!mpath) {
907 rcu_read_unlock();
908 return -ENXIO;
909 }
910 mesh_path_fix_nexthop(mpath, sta);
911
912 rcu_read_unlock();
913 return 0;
914 }
915
916 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
917 u8 *dst)
918 {
919 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
920
921 if (dst)
922 return mesh_path_del(dst, sdata);
923
924 mesh_path_flush(sdata);
925 return 0;
926 }
927
928 static int ieee80211_change_mpath(struct wiphy *wiphy,
929 struct net_device *dev,
930 u8 *dst, u8 *next_hop)
931 {
932 struct ieee80211_sub_if_data *sdata;
933 struct mesh_path *mpath;
934 struct sta_info *sta;
935
936 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
937
938 rcu_read_lock();
939
940 sta = sta_info_get(sdata, next_hop);
941 if (!sta) {
942 rcu_read_unlock();
943 return -ENOENT;
944 }
945
946 mpath = mesh_path_lookup(dst, sdata);
947 if (!mpath) {
948 rcu_read_unlock();
949 return -ENOENT;
950 }
951
952 mesh_path_fix_nexthop(mpath, sta);
953
954 rcu_read_unlock();
955 return 0;
956 }
957
958 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
959 struct mpath_info *pinfo)
960 {
961 if (mpath->next_hop)
962 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
963 else
964 memset(next_hop, 0, ETH_ALEN);
965
966 pinfo->generation = mesh_paths_generation;
967
968 pinfo->filled = MPATH_INFO_FRAME_QLEN |
969 MPATH_INFO_SN |
970 MPATH_INFO_METRIC |
971 MPATH_INFO_EXPTIME |
972 MPATH_INFO_DISCOVERY_TIMEOUT |
973 MPATH_INFO_DISCOVERY_RETRIES |
974 MPATH_INFO_FLAGS;
975
976 pinfo->frame_qlen = mpath->frame_queue.qlen;
977 pinfo->sn = mpath->sn;
978 pinfo->metric = mpath->metric;
979 if (time_before(jiffies, mpath->exp_time))
980 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
981 pinfo->discovery_timeout =
982 jiffies_to_msecs(mpath->discovery_timeout);
983 pinfo->discovery_retries = mpath->discovery_retries;
984 pinfo->flags = 0;
985 if (mpath->flags & MESH_PATH_ACTIVE)
986 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
987 if (mpath->flags & MESH_PATH_RESOLVING)
988 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
989 if (mpath->flags & MESH_PATH_SN_VALID)
990 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
991 if (mpath->flags & MESH_PATH_FIXED)
992 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
993 if (mpath->flags & MESH_PATH_RESOLVING)
994 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
995
996 pinfo->flags = mpath->flags;
997 }
998
999 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1000 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1001
1002 {
1003 struct ieee80211_sub_if_data *sdata;
1004 struct mesh_path *mpath;
1005
1006 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1007
1008 rcu_read_lock();
1009 mpath = mesh_path_lookup(dst, sdata);
1010 if (!mpath) {
1011 rcu_read_unlock();
1012 return -ENOENT;
1013 }
1014 memcpy(dst, mpath->dst, ETH_ALEN);
1015 mpath_set_pinfo(mpath, next_hop, pinfo);
1016 rcu_read_unlock();
1017 return 0;
1018 }
1019
1020 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1021 int idx, u8 *dst, u8 *next_hop,
1022 struct mpath_info *pinfo)
1023 {
1024 struct ieee80211_sub_if_data *sdata;
1025 struct mesh_path *mpath;
1026
1027 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1028
1029 rcu_read_lock();
1030 mpath = mesh_path_lookup_by_idx(idx, sdata);
1031 if (!mpath) {
1032 rcu_read_unlock();
1033 return -ENOENT;
1034 }
1035 memcpy(dst, mpath->dst, ETH_ALEN);
1036 mpath_set_pinfo(mpath, next_hop, pinfo);
1037 rcu_read_unlock();
1038 return 0;
1039 }
1040
1041 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1042 struct net_device *dev,
1043 struct mesh_config *conf)
1044 {
1045 struct ieee80211_sub_if_data *sdata;
1046 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1047
1048 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1049 return 0;
1050 }
1051
1052 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1053 {
1054 return (mask >> (parm-1)) & 0x1;
1055 }
1056
1057 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1058 const struct mesh_setup *setup)
1059 {
1060 u8 *new_ie;
1061 const u8 *old_ie;
1062
1063 /* allocate information elements */
1064 new_ie = NULL;
1065 old_ie = ifmsh->ie;
1066
1067 if (setup->ie_len) {
1068 new_ie = kmemdup(setup->ie, setup->ie_len,
1069 GFP_KERNEL);
1070 if (!new_ie)
1071 return -ENOMEM;
1072 }
1073 ifmsh->ie_len = setup->ie_len;
1074 ifmsh->ie = new_ie;
1075 kfree(old_ie);
1076
1077 /* now copy the rest of the setup parameters */
1078 ifmsh->mesh_id_len = setup->mesh_id_len;
1079 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1080 ifmsh->mesh_pp_id = setup->path_sel_proto;
1081 ifmsh->mesh_pm_id = setup->path_metric;
1082 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1083 if (setup->is_authenticated)
1084 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1085 if (setup->is_secure)
1086 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1087
1088 return 0;
1089 }
1090
1091 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1092 struct net_device *dev, u32 mask,
1093 const struct mesh_config *nconf)
1094 {
1095 struct mesh_config *conf;
1096 struct ieee80211_sub_if_data *sdata;
1097 struct ieee80211_if_mesh *ifmsh;
1098
1099 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1100 ifmsh = &sdata->u.mesh;
1101
1102 /* Set the config options which we are interested in setting */
1103 conf = &(sdata->u.mesh.mshcfg);
1104 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1105 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1106 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1107 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1108 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1109 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1110 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1111 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1112 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1113 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1114 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1115 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1116 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1117 conf->dot11MeshTTL = nconf->element_ttl;
1118 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1119 conf->auto_open_plinks = nconf->auto_open_plinks;
1120 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1121 conf->dot11MeshHWMPmaxPREQretries =
1122 nconf->dot11MeshHWMPmaxPREQretries;
1123 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1124 conf->path_refresh_time = nconf->path_refresh_time;
1125 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1126 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1127 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1128 conf->dot11MeshHWMPactivePathTimeout =
1129 nconf->dot11MeshHWMPactivePathTimeout;
1130 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1131 conf->dot11MeshHWMPpreqMinInterval =
1132 nconf->dot11MeshHWMPpreqMinInterval;
1133 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1134 mask))
1135 conf->dot11MeshHWMPnetDiameterTraversalTime =
1136 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1137 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1138 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1139 ieee80211_mesh_root_setup(ifmsh);
1140 }
1141 return 0;
1142 }
1143
1144 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1145 const struct mesh_config *conf,
1146 const struct mesh_setup *setup)
1147 {
1148 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1149 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1150 int err;
1151
1152 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1153 err = copy_mesh_setup(ifmsh, setup);
1154 if (err)
1155 return err;
1156 ieee80211_start_mesh(sdata);
1157
1158 return 0;
1159 }
1160
1161 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1162 {
1163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1164
1165 ieee80211_stop_mesh(sdata);
1166
1167 return 0;
1168 }
1169 #endif
1170
1171 static int ieee80211_change_bss(struct wiphy *wiphy,
1172 struct net_device *dev,
1173 struct bss_parameters *params)
1174 {
1175 struct ieee80211_sub_if_data *sdata;
1176 u32 changed = 0;
1177
1178 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1179
1180 if (params->use_cts_prot >= 0) {
1181 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1182 changed |= BSS_CHANGED_ERP_CTS_PROT;
1183 }
1184 if (params->use_short_preamble >= 0) {
1185 sdata->vif.bss_conf.use_short_preamble =
1186 params->use_short_preamble;
1187 changed |= BSS_CHANGED_ERP_PREAMBLE;
1188 }
1189
1190 if (!sdata->vif.bss_conf.use_short_slot &&
1191 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1192 sdata->vif.bss_conf.use_short_slot = true;
1193 changed |= BSS_CHANGED_ERP_SLOT;
1194 }
1195
1196 if (params->use_short_slot_time >= 0) {
1197 sdata->vif.bss_conf.use_short_slot =
1198 params->use_short_slot_time;
1199 changed |= BSS_CHANGED_ERP_SLOT;
1200 }
1201
1202 if (params->basic_rates) {
1203 int i, j;
1204 u32 rates = 0;
1205 struct ieee80211_local *local = wiphy_priv(wiphy);
1206 struct ieee80211_supported_band *sband =
1207 wiphy->bands[local->oper_channel->band];
1208
1209 for (i = 0; i < params->basic_rates_len; i++) {
1210 int rate = (params->basic_rates[i] & 0x7f) * 5;
1211 for (j = 0; j < sband->n_bitrates; j++) {
1212 if (sband->bitrates[j].bitrate == rate)
1213 rates |= BIT(j);
1214 }
1215 }
1216 sdata->vif.bss_conf.basic_rates = rates;
1217 changed |= BSS_CHANGED_BASIC_RATES;
1218 }
1219
1220 if (params->ap_isolate >= 0) {
1221 if (params->ap_isolate)
1222 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1223 else
1224 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1225 }
1226
1227 if (params->ht_opmode >= 0) {
1228 sdata->vif.bss_conf.ht_operation_mode =
1229 (u16) params->ht_opmode;
1230 changed |= BSS_CHANGED_HT;
1231 }
1232
1233 ieee80211_bss_info_change_notify(sdata, changed);
1234
1235 return 0;
1236 }
1237
1238 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1239 struct ieee80211_txq_params *params)
1240 {
1241 struct ieee80211_local *local = wiphy_priv(wiphy);
1242 struct ieee80211_tx_queue_params p;
1243
1244 if (!local->ops->conf_tx)
1245 return -EOPNOTSUPP;
1246
1247 memset(&p, 0, sizeof(p));
1248 p.aifs = params->aifs;
1249 p.cw_max = params->cwmax;
1250 p.cw_min = params->cwmin;
1251 p.txop = params->txop;
1252
1253 /*
1254 * Setting tx queue params disables u-apsd because it's only
1255 * called in master mode.
1256 */
1257 p.uapsd = false;
1258
1259 if (drv_conf_tx(local, params->queue, &p)) {
1260 wiphy_debug(local->hw.wiphy,
1261 "failed to set TX queue parameters for queue %d\n",
1262 params->queue);
1263 return -EINVAL;
1264 }
1265
1266 return 0;
1267 }
1268
1269 static int ieee80211_set_channel(struct wiphy *wiphy,
1270 struct net_device *netdev,
1271 struct ieee80211_channel *chan,
1272 enum nl80211_channel_type channel_type)
1273 {
1274 struct ieee80211_local *local = wiphy_priv(wiphy);
1275 struct ieee80211_sub_if_data *sdata = NULL;
1276 struct ieee80211_channel *old_oper;
1277 enum nl80211_channel_type old_oper_type;
1278 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
1279
1280 if (netdev)
1281 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1282
1283 switch (ieee80211_get_channel_mode(local, NULL)) {
1284 case CHAN_MODE_HOPPING:
1285 return -EBUSY;
1286 case CHAN_MODE_FIXED:
1287 if (local->oper_channel != chan)
1288 return -EBUSY;
1289 if (!sdata && local->_oper_channel_type == channel_type)
1290 return 0;
1291 break;
1292 case CHAN_MODE_UNDEFINED:
1293 break;
1294 }
1295
1296 if (sdata)
1297 old_vif_oper_type = sdata->vif.bss_conf.channel_type;
1298 old_oper_type = local->_oper_channel_type;
1299
1300 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1301 return -EBUSY;
1302
1303 old_oper = local->oper_channel;
1304 local->oper_channel = chan;
1305
1306 /* Update driver if changes were actually made. */
1307 if ((old_oper != local->oper_channel) ||
1308 (old_oper_type != local->_oper_channel_type))
1309 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1310
1311 if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
1312 old_vif_oper_type != sdata->vif.bss_conf.channel_type)
1313 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1314
1315 return 0;
1316 }
1317
1318 #ifdef CONFIG_PM
1319 static int ieee80211_suspend(struct wiphy *wiphy,
1320 struct cfg80211_wowlan *wowlan)
1321 {
1322 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1323 }
1324
1325 static int ieee80211_resume(struct wiphy *wiphy)
1326 {
1327 return __ieee80211_resume(wiphy_priv(wiphy));
1328 }
1329 #else
1330 #define ieee80211_suspend NULL
1331 #define ieee80211_resume NULL
1332 #endif
1333
1334 static int ieee80211_scan(struct wiphy *wiphy,
1335 struct net_device *dev,
1336 struct cfg80211_scan_request *req)
1337 {
1338 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1339
1340 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1341 case NL80211_IFTYPE_STATION:
1342 case NL80211_IFTYPE_ADHOC:
1343 case NL80211_IFTYPE_MESH_POINT:
1344 case NL80211_IFTYPE_P2P_CLIENT:
1345 break;
1346 case NL80211_IFTYPE_P2P_GO:
1347 if (sdata->local->ops->hw_scan)
1348 break;
1349 /*
1350 * FIXME: implement NoA while scanning in software,
1351 * for now fall through to allow scanning only when
1352 * beaconing hasn't been configured yet
1353 */
1354 case NL80211_IFTYPE_AP:
1355 if (sdata->u.ap.beacon)
1356 return -EOPNOTSUPP;
1357 break;
1358 default:
1359 return -EOPNOTSUPP;
1360 }
1361
1362 return ieee80211_request_scan(sdata, req);
1363 }
1364
1365 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1366 struct cfg80211_auth_request *req)
1367 {
1368 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1369 }
1370
1371 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1372 struct cfg80211_assoc_request *req)
1373 {
1374 struct ieee80211_local *local = wiphy_priv(wiphy);
1375 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1376
1377 switch (ieee80211_get_channel_mode(local, sdata)) {
1378 case CHAN_MODE_HOPPING:
1379 return -EBUSY;
1380 case CHAN_MODE_FIXED:
1381 if (local->oper_channel == req->bss->channel)
1382 break;
1383 return -EBUSY;
1384 case CHAN_MODE_UNDEFINED:
1385 break;
1386 }
1387
1388 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1389 }
1390
1391 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1392 struct cfg80211_deauth_request *req,
1393 void *cookie)
1394 {
1395 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1396 req, cookie);
1397 }
1398
1399 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1400 struct cfg80211_disassoc_request *req,
1401 void *cookie)
1402 {
1403 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1404 req, cookie);
1405 }
1406
1407 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1408 struct cfg80211_ibss_params *params)
1409 {
1410 struct ieee80211_local *local = wiphy_priv(wiphy);
1411 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1412
1413 switch (ieee80211_get_channel_mode(local, sdata)) {
1414 case CHAN_MODE_HOPPING:
1415 return -EBUSY;
1416 case CHAN_MODE_FIXED:
1417 if (!params->channel_fixed)
1418 return -EBUSY;
1419 if (local->oper_channel == params->channel)
1420 break;
1421 return -EBUSY;
1422 case CHAN_MODE_UNDEFINED:
1423 break;
1424 }
1425
1426 return ieee80211_ibss_join(sdata, params);
1427 }
1428
1429 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1430 {
1431 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1432
1433 return ieee80211_ibss_leave(sdata);
1434 }
1435
1436 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1437 {
1438 struct ieee80211_local *local = wiphy_priv(wiphy);
1439 int err;
1440
1441 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1442 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1443
1444 if (err)
1445 return err;
1446 }
1447
1448 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1449 err = drv_set_coverage_class(local, wiphy->coverage_class);
1450
1451 if (err)
1452 return err;
1453 }
1454
1455 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1456 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1457
1458 if (err)
1459 return err;
1460 }
1461
1462 if (changed & WIPHY_PARAM_RETRY_SHORT)
1463 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1464 if (changed & WIPHY_PARAM_RETRY_LONG)
1465 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1466 if (changed &
1467 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1468 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1469
1470 return 0;
1471 }
1472
1473 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1474 enum nl80211_tx_power_setting type, int mbm)
1475 {
1476 struct ieee80211_local *local = wiphy_priv(wiphy);
1477 struct ieee80211_channel *chan = local->hw.conf.channel;
1478 u32 changes = 0;
1479
1480 switch (type) {
1481 case NL80211_TX_POWER_AUTOMATIC:
1482 local->user_power_level = -1;
1483 break;
1484 case NL80211_TX_POWER_LIMITED:
1485 if (mbm < 0 || (mbm % 100))
1486 return -EOPNOTSUPP;
1487 local->user_power_level = MBM_TO_DBM(mbm);
1488 break;
1489 case NL80211_TX_POWER_FIXED:
1490 if (mbm < 0 || (mbm % 100))
1491 return -EOPNOTSUPP;
1492 /* TODO: move to cfg80211 when it knows the channel */
1493 if (MBM_TO_DBM(mbm) > chan->max_power)
1494 return -EINVAL;
1495 local->user_power_level = MBM_TO_DBM(mbm);
1496 break;
1497 }
1498
1499 ieee80211_hw_config(local, changes);
1500
1501 return 0;
1502 }
1503
1504 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1505 {
1506 struct ieee80211_local *local = wiphy_priv(wiphy);
1507
1508 *dbm = local->hw.conf.power_level;
1509
1510 return 0;
1511 }
1512
1513 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1514 const u8 *addr)
1515 {
1516 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1517
1518 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1519
1520 return 0;
1521 }
1522
1523 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1524 {
1525 struct ieee80211_local *local = wiphy_priv(wiphy);
1526
1527 drv_rfkill_poll(local);
1528 }
1529
1530 #ifdef CONFIG_NL80211_TESTMODE
1531 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1532 {
1533 struct ieee80211_local *local = wiphy_priv(wiphy);
1534
1535 if (!local->ops->testmode_cmd)
1536 return -EOPNOTSUPP;
1537
1538 return local->ops->testmode_cmd(&local->hw, data, len);
1539 }
1540 #endif
1541
1542 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1543 enum ieee80211_smps_mode smps_mode)
1544 {
1545 const u8 *ap;
1546 enum ieee80211_smps_mode old_req;
1547 int err;
1548
1549 lockdep_assert_held(&sdata->u.mgd.mtx);
1550
1551 old_req = sdata->u.mgd.req_smps;
1552 sdata->u.mgd.req_smps = smps_mode;
1553
1554 if (old_req == smps_mode &&
1555 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1556 return 0;
1557
1558 /*
1559 * If not associated, or current association is not an HT
1560 * association, there's no need to send an action frame.
1561 */
1562 if (!sdata->u.mgd.associated ||
1563 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1564 mutex_lock(&sdata->local->iflist_mtx);
1565 ieee80211_recalc_smps(sdata->local);
1566 mutex_unlock(&sdata->local->iflist_mtx);
1567 return 0;
1568 }
1569
1570 ap = sdata->u.mgd.associated->bssid;
1571
1572 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1573 if (sdata->u.mgd.powersave)
1574 smps_mode = IEEE80211_SMPS_DYNAMIC;
1575 else
1576 smps_mode = IEEE80211_SMPS_OFF;
1577 }
1578
1579 /* send SM PS frame to AP */
1580 err = ieee80211_send_smps_action(sdata, smps_mode,
1581 ap, ap);
1582 if (err)
1583 sdata->u.mgd.req_smps = old_req;
1584
1585 return err;
1586 }
1587
1588 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1589 bool enabled, int timeout)
1590 {
1591 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1592 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1593
1594 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1595 return -EOPNOTSUPP;
1596
1597 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1598 return -EOPNOTSUPP;
1599
1600 if (enabled == sdata->u.mgd.powersave &&
1601 timeout == local->dynamic_ps_forced_timeout)
1602 return 0;
1603
1604 sdata->u.mgd.powersave = enabled;
1605 local->dynamic_ps_forced_timeout = timeout;
1606
1607 /* no change, but if automatic follow powersave */
1608 mutex_lock(&sdata->u.mgd.mtx);
1609 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1610 mutex_unlock(&sdata->u.mgd.mtx);
1611
1612 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1613 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1614
1615 ieee80211_recalc_ps(local, -1);
1616
1617 return 0;
1618 }
1619
1620 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1621 struct net_device *dev,
1622 s32 rssi_thold, u32 rssi_hyst)
1623 {
1624 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1625 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1626 struct ieee80211_vif *vif = &sdata->vif;
1627 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1628
1629 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1630 rssi_hyst == bss_conf->cqm_rssi_hyst)
1631 return 0;
1632
1633 bss_conf->cqm_rssi_thold = rssi_thold;
1634 bss_conf->cqm_rssi_hyst = rssi_hyst;
1635
1636 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1637 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1638 return -EOPNOTSUPP;
1639 return 0;
1640 }
1641
1642 /* tell the driver upon association, unless already associated */
1643 if (sdata->u.mgd.associated)
1644 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1645
1646 return 0;
1647 }
1648
1649 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1650 struct net_device *dev,
1651 const u8 *addr,
1652 const struct cfg80211_bitrate_mask *mask)
1653 {
1654 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1655 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1656 int i, ret;
1657
1658 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
1659 ret = drv_set_bitrate_mask(local, sdata, mask);
1660 if (ret)
1661 return ret;
1662 }
1663
1664 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1665 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1666
1667 return 0;
1668 }
1669
1670 static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1671 struct net_device *dev,
1672 struct ieee80211_channel *chan,
1673 enum nl80211_channel_type chantype,
1674 unsigned int duration, u64 *cookie)
1675 {
1676 int ret;
1677 u32 random_cookie;
1678
1679 lockdep_assert_held(&local->mtx);
1680
1681 if (local->hw_roc_cookie)
1682 return -EBUSY;
1683 /* must be nonzero */
1684 random_cookie = random32() | 1;
1685
1686 *cookie = random_cookie;
1687 local->hw_roc_dev = dev;
1688 local->hw_roc_cookie = random_cookie;
1689 local->hw_roc_channel = chan;
1690 local->hw_roc_channel_type = chantype;
1691 local->hw_roc_duration = duration;
1692 ret = drv_remain_on_channel(local, chan, chantype, duration);
1693 if (ret) {
1694 local->hw_roc_channel = NULL;
1695 local->hw_roc_cookie = 0;
1696 }
1697
1698 return ret;
1699 }
1700
1701 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1702 struct net_device *dev,
1703 struct ieee80211_channel *chan,
1704 enum nl80211_channel_type channel_type,
1705 unsigned int duration,
1706 u64 *cookie)
1707 {
1708 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1709 struct ieee80211_local *local = sdata->local;
1710
1711 if (local->ops->remain_on_channel) {
1712 int ret;
1713
1714 mutex_lock(&local->mtx);
1715 ret = ieee80211_remain_on_channel_hw(local, dev,
1716 chan, channel_type,
1717 duration, cookie);
1718 local->hw_roc_for_tx = false;
1719 mutex_unlock(&local->mtx);
1720
1721 return ret;
1722 }
1723
1724 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1725 duration, cookie);
1726 }
1727
1728 static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1729 u64 cookie)
1730 {
1731 int ret;
1732
1733 lockdep_assert_held(&local->mtx);
1734
1735 if (local->hw_roc_cookie != cookie)
1736 return -ENOENT;
1737
1738 ret = drv_cancel_remain_on_channel(local);
1739 if (ret)
1740 return ret;
1741
1742 local->hw_roc_cookie = 0;
1743 local->hw_roc_channel = NULL;
1744
1745 ieee80211_recalc_idle(local);
1746
1747 return 0;
1748 }
1749
1750 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1751 struct net_device *dev,
1752 u64 cookie)
1753 {
1754 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1755 struct ieee80211_local *local = sdata->local;
1756
1757 if (local->ops->cancel_remain_on_channel) {
1758 int ret;
1759
1760 mutex_lock(&local->mtx);
1761 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1762 mutex_unlock(&local->mtx);
1763
1764 return ret;
1765 }
1766
1767 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1768 }
1769
1770 static enum work_done_result
1771 ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1772 {
1773 /*
1774 * Use the data embedded in the work struct for reporting
1775 * here so if the driver mangled the SKB before dropping
1776 * it (which is the only way we really should get here)
1777 * then we don't report mangled data.
1778 *
1779 * If there was no wait time, then by the time we get here
1780 * the driver will likely not have reported the status yet,
1781 * so in that case userspace will have to deal with it.
1782 */
1783
1784 if (wk->offchan_tx.wait && wk->offchan_tx.frame)
1785 cfg80211_mgmt_tx_status(wk->sdata->dev,
1786 (unsigned long) wk->offchan_tx.frame,
1787 wk->ie, wk->ie_len, false, GFP_KERNEL);
1788
1789 return WORK_DONE_DESTROY;
1790 }
1791
1792 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1793 struct ieee80211_channel *chan, bool offchan,
1794 enum nl80211_channel_type channel_type,
1795 bool channel_type_valid, unsigned int wait,
1796 const u8 *buf, size_t len, u64 *cookie)
1797 {
1798 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1799 struct ieee80211_local *local = sdata->local;
1800 struct sk_buff *skb;
1801 struct sta_info *sta;
1802 struct ieee80211_work *wk;
1803 const struct ieee80211_mgmt *mgmt = (void *)buf;
1804 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1805 IEEE80211_TX_CTL_REQ_TX_STATUS;
1806 bool is_offchan = false;
1807
1808 /* Check that we are on the requested channel for transmission */
1809 if (chan != local->tmp_channel &&
1810 chan != local->oper_channel)
1811 is_offchan = true;
1812 if (channel_type_valid &&
1813 (channel_type != local->tmp_channel_type &&
1814 channel_type != local->_oper_channel_type))
1815 is_offchan = true;
1816
1817 if (chan == local->hw_roc_channel) {
1818 /* TODO: check channel type? */
1819 is_offchan = false;
1820 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1821 }
1822
1823 if (is_offchan && !offchan)
1824 return -EBUSY;
1825
1826 switch (sdata->vif.type) {
1827 case NL80211_IFTYPE_ADHOC:
1828 case NL80211_IFTYPE_AP:
1829 case NL80211_IFTYPE_AP_VLAN:
1830 case NL80211_IFTYPE_P2P_GO:
1831 case NL80211_IFTYPE_MESH_POINT:
1832 if (!ieee80211_is_action(mgmt->frame_control) ||
1833 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1834 break;
1835 rcu_read_lock();
1836 sta = sta_info_get(sdata, mgmt->da);
1837 rcu_read_unlock();
1838 if (!sta)
1839 return -ENOLINK;
1840 break;
1841 case NL80211_IFTYPE_STATION:
1842 case NL80211_IFTYPE_P2P_CLIENT:
1843 break;
1844 default:
1845 return -EOPNOTSUPP;
1846 }
1847
1848 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1849 if (!skb)
1850 return -ENOMEM;
1851 skb_reserve(skb, local->hw.extra_tx_headroom);
1852
1853 memcpy(skb_put(skb, len), buf, len);
1854
1855 IEEE80211_SKB_CB(skb)->flags = flags;
1856
1857 skb->dev = sdata->dev;
1858
1859 *cookie = (unsigned long) skb;
1860
1861 if (is_offchan && local->ops->offchannel_tx) {
1862 int ret;
1863
1864 IEEE80211_SKB_CB(skb)->band = chan->band;
1865
1866 mutex_lock(&local->mtx);
1867
1868 if (local->hw_offchan_tx_cookie) {
1869 mutex_unlock(&local->mtx);
1870 return -EBUSY;
1871 }
1872
1873 /* TODO: bitrate control, TX processing? */
1874 ret = drv_offchannel_tx(local, skb, chan, channel_type, wait);
1875
1876 if (ret == 0)
1877 local->hw_offchan_tx_cookie = *cookie;
1878 mutex_unlock(&local->mtx);
1879
1880 /*
1881 * Allow driver to return 1 to indicate it wants to have the
1882 * frame transmitted with a remain_on_channel + regular TX.
1883 */
1884 if (ret != 1)
1885 return ret;
1886 }
1887
1888 if (is_offchan && local->ops->remain_on_channel) {
1889 unsigned int duration;
1890 int ret;
1891
1892 mutex_lock(&local->mtx);
1893 /*
1894 * If the duration is zero, then the driver
1895 * wouldn't actually do anything. Set it to
1896 * 100 for now.
1897 *
1898 * TODO: cancel the off-channel operation
1899 * when we get the SKB's TX status and
1900 * the wait time was zero before.
1901 */
1902 duration = 100;
1903 if (wait)
1904 duration = wait;
1905 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
1906 channel_type,
1907 duration, cookie);
1908 if (ret) {
1909 kfree_skb(skb);
1910 mutex_unlock(&local->mtx);
1911 return ret;
1912 }
1913
1914 local->hw_roc_for_tx = true;
1915 local->hw_roc_duration = wait;
1916
1917 /*
1918 * queue up frame for transmission after
1919 * ieee80211_ready_on_channel call
1920 */
1921
1922 /* modify cookie to prevent API mismatches */
1923 *cookie ^= 2;
1924 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1925 local->hw_roc_skb = skb;
1926 local->hw_roc_skb_for_status = skb;
1927 mutex_unlock(&local->mtx);
1928
1929 return 0;
1930 }
1931
1932 /*
1933 * Can transmit right away if the channel was the
1934 * right one and there's no wait involved... If a
1935 * wait is involved, we might otherwise not be on
1936 * the right channel for long enough!
1937 */
1938 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
1939 ieee80211_tx_skb(sdata, skb);
1940 return 0;
1941 }
1942
1943 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
1944 if (!wk) {
1945 kfree_skb(skb);
1946 return -ENOMEM;
1947 }
1948
1949 wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
1950 wk->chan = chan;
1951 wk->chan_type = channel_type;
1952 wk->sdata = sdata;
1953 wk->done = ieee80211_offchan_tx_done;
1954 wk->offchan_tx.frame = skb;
1955 wk->offchan_tx.wait = wait;
1956 wk->ie_len = len;
1957 memcpy(wk->ie, buf, len);
1958
1959 ieee80211_add_work(wk);
1960 return 0;
1961 }
1962
1963 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1964 struct net_device *dev,
1965 u64 cookie)
1966 {
1967 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1968 struct ieee80211_local *local = sdata->local;
1969 struct ieee80211_work *wk;
1970 int ret = -ENOENT;
1971
1972 mutex_lock(&local->mtx);
1973
1974 if (local->ops->offchannel_tx_cancel_wait &&
1975 local->hw_offchan_tx_cookie == cookie) {
1976 ret = drv_offchannel_tx_cancel_wait(local);
1977
1978 if (!ret)
1979 local->hw_offchan_tx_cookie = 0;
1980
1981 mutex_unlock(&local->mtx);
1982
1983 return ret;
1984 }
1985
1986 if (local->ops->cancel_remain_on_channel) {
1987 cookie ^= 2;
1988 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1989
1990 if (ret == 0) {
1991 kfree_skb(local->hw_roc_skb);
1992 local->hw_roc_skb = NULL;
1993 local->hw_roc_skb_for_status = NULL;
1994 }
1995
1996 mutex_unlock(&local->mtx);
1997
1998 return ret;
1999 }
2000
2001 list_for_each_entry(wk, &local->work_list, list) {
2002 if (wk->sdata != sdata)
2003 continue;
2004
2005 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
2006 continue;
2007
2008 if (cookie != (unsigned long) wk->offchan_tx.frame)
2009 continue;
2010
2011 wk->timeout = jiffies;
2012
2013 ieee80211_queue_work(&local->hw, &local->work_work);
2014 ret = 0;
2015 break;
2016 }
2017 mutex_unlock(&local->mtx);
2018
2019 return ret;
2020 }
2021
2022 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2023 struct net_device *dev,
2024 u16 frame_type, bool reg)
2025 {
2026 struct ieee80211_local *local = wiphy_priv(wiphy);
2027
2028 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
2029 return;
2030
2031 if (reg)
2032 local->probe_req_reg++;
2033 else
2034 local->probe_req_reg--;
2035
2036 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2037 }
2038
2039 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2040 {
2041 struct ieee80211_local *local = wiphy_priv(wiphy);
2042
2043 if (local->started)
2044 return -EOPNOTSUPP;
2045
2046 return drv_set_antenna(local, tx_ant, rx_ant);
2047 }
2048
2049 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2050 {
2051 struct ieee80211_local *local = wiphy_priv(wiphy);
2052
2053 return drv_get_antenna(local, tx_ant, rx_ant);
2054 }
2055
2056 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2057 {
2058 struct ieee80211_local *local = wiphy_priv(wiphy);
2059
2060 return drv_set_ringparam(local, tx, rx);
2061 }
2062
2063 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2064 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2065 {
2066 struct ieee80211_local *local = wiphy_priv(wiphy);
2067
2068 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2069 }
2070
2071 struct cfg80211_ops mac80211_config_ops = {
2072 .add_virtual_intf = ieee80211_add_iface,
2073 .del_virtual_intf = ieee80211_del_iface,
2074 .change_virtual_intf = ieee80211_change_iface,
2075 .add_key = ieee80211_add_key,
2076 .del_key = ieee80211_del_key,
2077 .get_key = ieee80211_get_key,
2078 .set_default_key = ieee80211_config_default_key,
2079 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
2080 .add_beacon = ieee80211_add_beacon,
2081 .set_beacon = ieee80211_set_beacon,
2082 .del_beacon = ieee80211_del_beacon,
2083 .add_station = ieee80211_add_station,
2084 .del_station = ieee80211_del_station,
2085 .change_station = ieee80211_change_station,
2086 .get_station = ieee80211_get_station,
2087 .dump_station = ieee80211_dump_station,
2088 .dump_survey = ieee80211_dump_survey,
2089 #ifdef CONFIG_MAC80211_MESH
2090 .add_mpath = ieee80211_add_mpath,
2091 .del_mpath = ieee80211_del_mpath,
2092 .change_mpath = ieee80211_change_mpath,
2093 .get_mpath = ieee80211_get_mpath,
2094 .dump_mpath = ieee80211_dump_mpath,
2095 .update_mesh_config = ieee80211_update_mesh_config,
2096 .get_mesh_config = ieee80211_get_mesh_config,
2097 .join_mesh = ieee80211_join_mesh,
2098 .leave_mesh = ieee80211_leave_mesh,
2099 #endif
2100 .change_bss = ieee80211_change_bss,
2101 .set_txq_params = ieee80211_set_txq_params,
2102 .set_channel = ieee80211_set_channel,
2103 .suspend = ieee80211_suspend,
2104 .resume = ieee80211_resume,
2105 .scan = ieee80211_scan,
2106 .auth = ieee80211_auth,
2107 .assoc = ieee80211_assoc,
2108 .deauth = ieee80211_deauth,
2109 .disassoc = ieee80211_disassoc,
2110 .join_ibss = ieee80211_join_ibss,
2111 .leave_ibss = ieee80211_leave_ibss,
2112 .set_wiphy_params = ieee80211_set_wiphy_params,
2113 .set_tx_power = ieee80211_set_tx_power,
2114 .get_tx_power = ieee80211_get_tx_power,
2115 .set_wds_peer = ieee80211_set_wds_peer,
2116 .rfkill_poll = ieee80211_rfkill_poll,
2117 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
2118 .set_power_mgmt = ieee80211_set_power_mgmt,
2119 .set_bitrate_mask = ieee80211_set_bitrate_mask,
2120 .remain_on_channel = ieee80211_remain_on_channel,
2121 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2122 .mgmt_tx = ieee80211_mgmt_tx,
2123 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
2124 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
2125 .mgmt_frame_register = ieee80211_mgmt_frame_register,
2126 .set_antenna = ieee80211_set_antenna,
2127 .get_antenna = ieee80211_get_antenna,
2128 .set_ringparam = ieee80211_set_ringparam,
2129 .get_ringparam = ieee80211_get_ringparam,
2130 };
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