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