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Merge branch 'wireless-2.6' into wireless-next-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.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 bool nl80211_type_check(enum nl80211_iftype type)
23 {
24 switch (type) {
25 case NL80211_IFTYPE_ADHOC:
26 case NL80211_IFTYPE_STATION:
27 case NL80211_IFTYPE_MONITOR:
28 #ifdef CONFIG_MAC80211_MESH
29 case NL80211_IFTYPE_MESH_POINT:
30 #endif
31 case NL80211_IFTYPE_AP:
32 case NL80211_IFTYPE_AP_VLAN:
33 case NL80211_IFTYPE_WDS:
34 return true;
35 default:
36 return false;
37 }
38 }
39
40 static bool nl80211_params_check(enum nl80211_iftype type,
41 struct vif_params *params)
42 {
43 if (!nl80211_type_check(type))
44 return false;
45
46 return true;
47 }
48
49 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
50 enum nl80211_iftype type, u32 *flags,
51 struct vif_params *params)
52 {
53 struct ieee80211_local *local = wiphy_priv(wiphy);
54 struct net_device *dev;
55 struct ieee80211_sub_if_data *sdata;
56 int err;
57
58 if (!nl80211_params_check(type, params))
59 return -EINVAL;
60
61 err = ieee80211_if_add(local, name, &dev, type, params);
62 if (err || type != NL80211_IFTYPE_MONITOR || !flags)
63 return err;
64
65 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66 sdata->u.mntr_flags = *flags;
67 return 0;
68 }
69
70 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
71 {
72 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
73
74 return 0;
75 }
76
77 static int ieee80211_change_iface(struct wiphy *wiphy,
78 struct net_device *dev,
79 enum nl80211_iftype type, u32 *flags,
80 struct vif_params *params)
81 {
82 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
83 int ret;
84
85 if (ieee80211_sdata_running(sdata))
86 return -EBUSY;
87
88 if (!nl80211_params_check(type, params))
89 return -EINVAL;
90
91 ret = ieee80211_if_change_type(sdata, type);
92 if (ret)
93 return ret;
94
95 if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
96 ieee80211_sdata_set_mesh_id(sdata,
97 params->mesh_id_len,
98 params->mesh_id);
99
100 if (type == NL80211_IFTYPE_AP_VLAN &&
101 params && params->use_4addr == 0)
102 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
103 else if (type == NL80211_IFTYPE_STATION &&
104 params && params->use_4addr >= 0)
105 sdata->u.mgd.use_4addr = params->use_4addr;
106
107 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags)
108 sdata->u.mntr_flags = *flags;
109
110 return 0;
111 }
112
113 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
114 u8 key_idx, const u8 *mac_addr,
115 struct key_params *params)
116 {
117 struct ieee80211_sub_if_data *sdata;
118 struct sta_info *sta = NULL;
119 enum ieee80211_key_alg alg;
120 struct ieee80211_key *key;
121 int err;
122
123 if (!netif_running(dev))
124 return -ENETDOWN;
125
126 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
127
128 switch (params->cipher) {
129 case WLAN_CIPHER_SUITE_WEP40:
130 case WLAN_CIPHER_SUITE_WEP104:
131 alg = ALG_WEP;
132 break;
133 case WLAN_CIPHER_SUITE_TKIP:
134 alg = ALG_TKIP;
135 break;
136 case WLAN_CIPHER_SUITE_CCMP:
137 alg = ALG_CCMP;
138 break;
139 case WLAN_CIPHER_SUITE_AES_CMAC:
140 alg = ALG_AES_CMAC;
141 break;
142 default:
143 return -EINVAL;
144 }
145
146 key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
147 params->seq_len, params->seq);
148 if (!key)
149 return -ENOMEM;
150
151 mutex_lock(&sdata->local->sta_mtx);
152
153 if (mac_addr) {
154 sta = sta_info_get_bss(sdata, mac_addr);
155 if (!sta) {
156 ieee80211_key_free(key);
157 err = -ENOENT;
158 goto out_unlock;
159 }
160 }
161
162 ieee80211_key_link(key, sdata, sta);
163
164 err = 0;
165 out_unlock:
166 mutex_unlock(&sdata->local->sta_mtx);
167
168 return err;
169 }
170
171 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
172 u8 key_idx, const u8 *mac_addr)
173 {
174 struct ieee80211_sub_if_data *sdata;
175 struct sta_info *sta;
176 int ret;
177
178 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
179
180 mutex_lock(&sdata->local->sta_mtx);
181
182 if (mac_addr) {
183 ret = -ENOENT;
184
185 sta = sta_info_get_bss(sdata, mac_addr);
186 if (!sta)
187 goto out_unlock;
188
189 if (sta->key) {
190 ieee80211_key_free(sta->key);
191 WARN_ON(sta->key);
192 ret = 0;
193 }
194
195 goto out_unlock;
196 }
197
198 if (!sdata->keys[key_idx]) {
199 ret = -ENOENT;
200 goto out_unlock;
201 }
202
203 ieee80211_key_free(sdata->keys[key_idx]);
204 WARN_ON(sdata->keys[key_idx]);
205
206 ret = 0;
207 out_unlock:
208 mutex_unlock(&sdata->local->sta_mtx);
209
210 return ret;
211 }
212
213 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
214 u8 key_idx, const u8 *mac_addr, void *cookie,
215 void (*callback)(void *cookie,
216 struct key_params *params))
217 {
218 struct ieee80211_sub_if_data *sdata;
219 struct sta_info *sta = NULL;
220 u8 seq[6] = {0};
221 struct key_params params;
222 struct ieee80211_key *key;
223 u32 iv32;
224 u16 iv16;
225 int err = -ENOENT;
226
227 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
228
229 rcu_read_lock();
230
231 if (mac_addr) {
232 sta = sta_info_get_bss(sdata, mac_addr);
233 if (!sta)
234 goto out;
235
236 key = sta->key;
237 } else
238 key = sdata->keys[key_idx];
239
240 if (!key)
241 goto out;
242
243 memset(&params, 0, sizeof(params));
244
245 switch (key->conf.alg) {
246 case ALG_TKIP:
247 params.cipher = WLAN_CIPHER_SUITE_TKIP;
248
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 ALG_CCMP:
267 params.cipher = WLAN_CIPHER_SUITE_CCMP;
268 seq[0] = key->u.ccmp.tx_pn[5];
269 seq[1] = key->u.ccmp.tx_pn[4];
270 seq[2] = key->u.ccmp.tx_pn[3];
271 seq[3] = key->u.ccmp.tx_pn[2];
272 seq[4] = key->u.ccmp.tx_pn[1];
273 seq[5] = key->u.ccmp.tx_pn[0];
274 params.seq = seq;
275 params.seq_len = 6;
276 break;
277 case ALG_WEP:
278 if (key->conf.keylen == 5)
279 params.cipher = WLAN_CIPHER_SUITE_WEP40;
280 else
281 params.cipher = WLAN_CIPHER_SUITE_WEP104;
282 break;
283 case ALG_AES_CMAC:
284 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
285 seq[0] = key->u.aes_cmac.tx_pn[5];
286 seq[1] = key->u.aes_cmac.tx_pn[4];
287 seq[2] = key->u.aes_cmac.tx_pn[3];
288 seq[3] = key->u.aes_cmac.tx_pn[2];
289 seq[4] = key->u.aes_cmac.tx_pn[1];
290 seq[5] = key->u.aes_cmac.tx_pn[0];
291 params.seq = seq;
292 params.seq_len = 6;
293 break;
294 }
295
296 params.key = key->conf.key;
297 params.key_len = key->conf.keylen;
298
299 callback(cookie, &params);
300 err = 0;
301
302 out:
303 rcu_read_unlock();
304 return err;
305 }
306
307 static int ieee80211_config_default_key(struct wiphy *wiphy,
308 struct net_device *dev,
309 u8 key_idx)
310 {
311 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
312
313 ieee80211_set_default_key(sdata, key_idx);
314
315 return 0;
316 }
317
318 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
319 struct net_device *dev,
320 u8 key_idx)
321 {
322 struct ieee80211_sub_if_data *sdata;
323
324 rcu_read_lock();
325
326 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
327 ieee80211_set_default_mgmt_key(sdata, key_idx);
328
329 rcu_read_unlock();
330
331 return 0;
332 }
333
334 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
335 {
336 struct ieee80211_sub_if_data *sdata = sta->sdata;
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_BITRATE;
346
347 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
348 sinfo->rx_bytes = sta->rx_bytes;
349 sinfo->tx_bytes = sta->tx_bytes;
350 sinfo->rx_packets = sta->rx_packets;
351 sinfo->tx_packets = sta->tx_packets;
352
353 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
354 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
355 sinfo->filled |= STATION_INFO_SIGNAL;
356 sinfo->signal = (s8)sta->last_signal;
357 }
358
359 sinfo->txrate.flags = 0;
360 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
361 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
362 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
363 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
364 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
365 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
366
367 if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
368 struct ieee80211_supported_band *sband;
369 sband = sta->local->hw.wiphy->bands[
370 sta->local->hw.conf.channel->band];
371 sinfo->txrate.legacy =
372 sband->bitrates[sta->last_tx_rate.idx].bitrate;
373 } else
374 sinfo->txrate.mcs = sta->last_tx_rate.idx;
375
376 if (ieee80211_vif_is_mesh(&sdata->vif)) {
377 #ifdef CONFIG_MAC80211_MESH
378 sinfo->filled |= STATION_INFO_LLID |
379 STATION_INFO_PLID |
380 STATION_INFO_PLINK_STATE;
381
382 sinfo->llid = le16_to_cpu(sta->llid);
383 sinfo->plid = le16_to_cpu(sta->plid);
384 sinfo->plink_state = sta->plink_state;
385 #endif
386 }
387 }
388
389
390 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
391 int idx, u8 *mac, struct station_info *sinfo)
392 {
393 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
394 struct sta_info *sta;
395 int ret = -ENOENT;
396
397 rcu_read_lock();
398
399 sta = sta_info_get_by_idx(sdata, idx);
400 if (sta) {
401 ret = 0;
402 memcpy(mac, sta->sta.addr, ETH_ALEN);
403 sta_set_sinfo(sta, sinfo);
404 }
405
406 rcu_read_unlock();
407
408 return ret;
409 }
410
411 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
412 int idx, struct survey_info *survey)
413 {
414 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
415
416 if (!local->ops->get_survey)
417 return -EOPNOTSUPP;
418
419 return drv_get_survey(local, idx, survey);
420 }
421
422 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
423 u8 *mac, struct station_info *sinfo)
424 {
425 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
426 struct sta_info *sta;
427 int ret = -ENOENT;
428
429 rcu_read_lock();
430
431 sta = sta_info_get_bss(sdata, mac);
432 if (sta) {
433 ret = 0;
434 sta_set_sinfo(sta, sinfo);
435 }
436
437 rcu_read_unlock();
438
439 return ret;
440 }
441
442 /*
443 * This handles both adding a beacon and setting new beacon info
444 */
445 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
446 struct beacon_parameters *params)
447 {
448 struct beacon_data *new, *old;
449 int new_head_len, new_tail_len;
450 int size;
451 int err = -EINVAL;
452
453 old = sdata->u.ap.beacon;
454
455 /* head must not be zero-length */
456 if (params->head && !params->head_len)
457 return -EINVAL;
458
459 /*
460 * This is a kludge. beacon interval should really be part
461 * of the beacon information.
462 */
463 if (params->interval &&
464 (sdata->vif.bss_conf.beacon_int != params->interval)) {
465 sdata->vif.bss_conf.beacon_int = params->interval;
466 ieee80211_bss_info_change_notify(sdata,
467 BSS_CHANGED_BEACON_INT);
468 }
469
470 /* Need to have a beacon head if we don't have one yet */
471 if (!params->head && !old)
472 return err;
473
474 /* sorry, no way to start beaconing without dtim period */
475 if (!params->dtim_period && !old)
476 return err;
477
478 /* new or old head? */
479 if (params->head)
480 new_head_len = params->head_len;
481 else
482 new_head_len = old->head_len;
483
484 /* new or old tail? */
485 if (params->tail || !old)
486 /* params->tail_len will be zero for !params->tail */
487 new_tail_len = params->tail_len;
488 else
489 new_tail_len = old->tail_len;
490
491 size = sizeof(*new) + new_head_len + new_tail_len;
492
493 new = kzalloc(size, GFP_KERNEL);
494 if (!new)
495 return -ENOMEM;
496
497 /* start filling the new info now */
498
499 /* new or old dtim period? */
500 if (params->dtim_period)
501 new->dtim_period = params->dtim_period;
502 else
503 new->dtim_period = old->dtim_period;
504
505 /*
506 * pointers go into the block we allocated,
507 * memory is | beacon_data | head | tail |
508 */
509 new->head = ((u8 *) new) + sizeof(*new);
510 new->tail = new->head + new_head_len;
511 new->head_len = new_head_len;
512 new->tail_len = new_tail_len;
513
514 /* copy in head */
515 if (params->head)
516 memcpy(new->head, params->head, new_head_len);
517 else
518 memcpy(new->head, old->head, new_head_len);
519
520 /* copy in optional tail */
521 if (params->tail)
522 memcpy(new->tail, params->tail, new_tail_len);
523 else
524 if (old)
525 memcpy(new->tail, old->tail, new_tail_len);
526
527 sdata->vif.bss_conf.dtim_period = new->dtim_period;
528
529 rcu_assign_pointer(sdata->u.ap.beacon, new);
530
531 synchronize_rcu();
532
533 kfree(old);
534
535 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
536 BSS_CHANGED_BEACON);
537 return 0;
538 }
539
540 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
541 struct beacon_parameters *params)
542 {
543 struct ieee80211_sub_if_data *sdata;
544 struct beacon_data *old;
545
546 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
547
548 old = sdata->u.ap.beacon;
549
550 if (old)
551 return -EALREADY;
552
553 return ieee80211_config_beacon(sdata, params);
554 }
555
556 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
557 struct beacon_parameters *params)
558 {
559 struct ieee80211_sub_if_data *sdata;
560 struct beacon_data *old;
561
562 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
563
564 old = sdata->u.ap.beacon;
565
566 if (!old)
567 return -ENOENT;
568
569 return ieee80211_config_beacon(sdata, params);
570 }
571
572 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
573 {
574 struct ieee80211_sub_if_data *sdata;
575 struct beacon_data *old;
576
577 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
578
579 old = sdata->u.ap.beacon;
580
581 if (!old)
582 return -ENOENT;
583
584 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
585 synchronize_rcu();
586 kfree(old);
587
588 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
589 return 0;
590 }
591
592 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
593 struct iapp_layer2_update {
594 u8 da[ETH_ALEN]; /* broadcast */
595 u8 sa[ETH_ALEN]; /* STA addr */
596 __be16 len; /* 6 */
597 u8 dsap; /* 0 */
598 u8 ssap; /* 0 */
599 u8 control;
600 u8 xid_info[3];
601 } __attribute__ ((packed));
602
603 static void ieee80211_send_layer2_update(struct sta_info *sta)
604 {
605 struct iapp_layer2_update *msg;
606 struct sk_buff *skb;
607
608 /* Send Level 2 Update Frame to update forwarding tables in layer 2
609 * bridge devices */
610
611 skb = dev_alloc_skb(sizeof(*msg));
612 if (!skb)
613 return;
614 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
615
616 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
617 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
618
619 memset(msg->da, 0xff, ETH_ALEN);
620 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
621 msg->len = htons(6);
622 msg->dsap = 0;
623 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
624 msg->control = 0xaf; /* XID response lsb.1111F101.
625 * F=0 (no poll command; unsolicited frame) */
626 msg->xid_info[0] = 0x81; /* XID format identifier */
627 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
628 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
629
630 skb->dev = sta->sdata->dev;
631 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
632 memset(skb->cb, 0, sizeof(skb->cb));
633 netif_rx(skb);
634 }
635
636 static void sta_apply_parameters(struct ieee80211_local *local,
637 struct sta_info *sta,
638 struct station_parameters *params)
639 {
640 u32 rates;
641 int i, j;
642 struct ieee80211_supported_band *sband;
643 struct ieee80211_sub_if_data *sdata = sta->sdata;
644 u32 mask, set;
645
646 sband = local->hw.wiphy->bands[local->oper_channel->band];
647
648 spin_lock_bh(&sta->lock);
649 mask = params->sta_flags_mask;
650 set = params->sta_flags_set;
651
652 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
653 sta->flags &= ~WLAN_STA_AUTHORIZED;
654 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
655 sta->flags |= WLAN_STA_AUTHORIZED;
656 }
657
658 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
659 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
660 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
661 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
662 }
663
664 if (mask & BIT(NL80211_STA_FLAG_WME)) {
665 sta->flags &= ~WLAN_STA_WME;
666 if (set & BIT(NL80211_STA_FLAG_WME))
667 sta->flags |= WLAN_STA_WME;
668 }
669
670 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
671 sta->flags &= ~WLAN_STA_MFP;
672 if (set & BIT(NL80211_STA_FLAG_MFP))
673 sta->flags |= WLAN_STA_MFP;
674 }
675 spin_unlock_bh(&sta->lock);
676
677 /*
678 * cfg80211 validates this (1-2007) and allows setting the AID
679 * only when creating a new station entry
680 */
681 if (params->aid)
682 sta->sta.aid = params->aid;
683
684 /*
685 * FIXME: updating the following information is racy when this
686 * function is called from ieee80211_change_station().
687 * However, all this information should be static so
688 * maybe we should just reject attemps to change it.
689 */
690
691 if (params->listen_interval >= 0)
692 sta->listen_interval = params->listen_interval;
693
694 if (params->supported_rates) {
695 rates = 0;
696
697 for (i = 0; i < params->supported_rates_len; i++) {
698 int rate = (params->supported_rates[i] & 0x7f) * 5;
699 for (j = 0; j < sband->n_bitrates; j++) {
700 if (sband->bitrates[j].bitrate == rate)
701 rates |= BIT(j);
702 }
703 }
704 sta->sta.supp_rates[local->oper_channel->band] = rates;
705 }
706
707 if (params->ht_capa)
708 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
709 params->ht_capa,
710 &sta->sta.ht_cap);
711
712 if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
713 switch (params->plink_action) {
714 case PLINK_ACTION_OPEN:
715 mesh_plink_open(sta);
716 break;
717 case PLINK_ACTION_BLOCK:
718 mesh_plink_block(sta);
719 break;
720 }
721 }
722 }
723
724 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
725 u8 *mac, struct station_parameters *params)
726 {
727 struct ieee80211_local *local = wiphy_priv(wiphy);
728 struct sta_info *sta;
729 struct ieee80211_sub_if_data *sdata;
730 int err;
731 int layer2_update;
732
733 if (params->vlan) {
734 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
735
736 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
737 sdata->vif.type != NL80211_IFTYPE_AP)
738 return -EINVAL;
739 } else
740 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
741
742 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
743 return -EINVAL;
744
745 if (is_multicast_ether_addr(mac))
746 return -EINVAL;
747
748 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
749 if (!sta)
750 return -ENOMEM;
751
752 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
753
754 sta_apply_parameters(local, sta, params);
755
756 rate_control_rate_init(sta);
757
758 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
759 sdata->vif.type == NL80211_IFTYPE_AP;
760
761 err = sta_info_insert_rcu(sta);
762 if (err) {
763 rcu_read_unlock();
764 return err;
765 }
766
767 if (layer2_update)
768 ieee80211_send_layer2_update(sta);
769
770 rcu_read_unlock();
771
772 return 0;
773 }
774
775 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
776 u8 *mac)
777 {
778 struct ieee80211_local *local = wiphy_priv(wiphy);
779 struct ieee80211_sub_if_data *sdata;
780
781 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
782
783 if (mac)
784 return sta_info_destroy_addr_bss(sdata, mac);
785
786 sta_info_flush(local, sdata);
787 return 0;
788 }
789
790 static int ieee80211_change_station(struct wiphy *wiphy,
791 struct net_device *dev,
792 u8 *mac,
793 struct station_parameters *params)
794 {
795 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
796 struct ieee80211_local *local = wiphy_priv(wiphy);
797 struct sta_info *sta;
798 struct ieee80211_sub_if_data *vlansdata;
799
800 rcu_read_lock();
801
802 sta = sta_info_get_bss(sdata, mac);
803 if (!sta) {
804 rcu_read_unlock();
805 return -ENOENT;
806 }
807
808 if (params->vlan && params->vlan != sta->sdata->dev) {
809 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
810
811 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
812 vlansdata->vif.type != NL80211_IFTYPE_AP) {
813 rcu_read_unlock();
814 return -EINVAL;
815 }
816
817 if (params->vlan->ieee80211_ptr->use_4addr) {
818 if (vlansdata->u.vlan.sta) {
819 rcu_read_unlock();
820 return -EBUSY;
821 }
822
823 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
824 }
825
826 sta->sdata = vlansdata;
827 ieee80211_send_layer2_update(sta);
828 }
829
830 sta_apply_parameters(local, sta, params);
831
832 rcu_read_unlock();
833
834 return 0;
835 }
836
837 #ifdef CONFIG_MAC80211_MESH
838 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
839 u8 *dst, u8 *next_hop)
840 {
841 struct ieee80211_sub_if_data *sdata;
842 struct mesh_path *mpath;
843 struct sta_info *sta;
844 int err;
845
846 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
847
848 rcu_read_lock();
849 sta = sta_info_get(sdata, next_hop);
850 if (!sta) {
851 rcu_read_unlock();
852 return -ENOENT;
853 }
854
855 err = mesh_path_add(dst, sdata);
856 if (err) {
857 rcu_read_unlock();
858 return err;
859 }
860
861 mpath = mesh_path_lookup(dst, sdata);
862 if (!mpath) {
863 rcu_read_unlock();
864 return -ENXIO;
865 }
866 mesh_path_fix_nexthop(mpath, sta);
867
868 rcu_read_unlock();
869 return 0;
870 }
871
872 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
873 u8 *dst)
874 {
875 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
876
877 if (dst)
878 return mesh_path_del(dst, sdata);
879
880 mesh_path_flush(sdata);
881 return 0;
882 }
883
884 static int ieee80211_change_mpath(struct wiphy *wiphy,
885 struct net_device *dev,
886 u8 *dst, u8 *next_hop)
887 {
888 struct ieee80211_sub_if_data *sdata;
889 struct mesh_path *mpath;
890 struct sta_info *sta;
891
892 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
893
894 rcu_read_lock();
895
896 sta = sta_info_get(sdata, next_hop);
897 if (!sta) {
898 rcu_read_unlock();
899 return -ENOENT;
900 }
901
902 mpath = mesh_path_lookup(dst, sdata);
903 if (!mpath) {
904 rcu_read_unlock();
905 return -ENOENT;
906 }
907
908 mesh_path_fix_nexthop(mpath, sta);
909
910 rcu_read_unlock();
911 return 0;
912 }
913
914 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
915 struct mpath_info *pinfo)
916 {
917 if (mpath->next_hop)
918 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
919 else
920 memset(next_hop, 0, ETH_ALEN);
921
922 pinfo->generation = mesh_paths_generation;
923
924 pinfo->filled = MPATH_INFO_FRAME_QLEN |
925 MPATH_INFO_SN |
926 MPATH_INFO_METRIC |
927 MPATH_INFO_EXPTIME |
928 MPATH_INFO_DISCOVERY_TIMEOUT |
929 MPATH_INFO_DISCOVERY_RETRIES |
930 MPATH_INFO_FLAGS;
931
932 pinfo->frame_qlen = mpath->frame_queue.qlen;
933 pinfo->sn = mpath->sn;
934 pinfo->metric = mpath->metric;
935 if (time_before(jiffies, mpath->exp_time))
936 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
937 pinfo->discovery_timeout =
938 jiffies_to_msecs(mpath->discovery_timeout);
939 pinfo->discovery_retries = mpath->discovery_retries;
940 pinfo->flags = 0;
941 if (mpath->flags & MESH_PATH_ACTIVE)
942 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
943 if (mpath->flags & MESH_PATH_RESOLVING)
944 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
945 if (mpath->flags & MESH_PATH_SN_VALID)
946 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
947 if (mpath->flags & MESH_PATH_FIXED)
948 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
949 if (mpath->flags & MESH_PATH_RESOLVING)
950 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
951
952 pinfo->flags = mpath->flags;
953 }
954
955 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
956 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
957
958 {
959 struct ieee80211_sub_if_data *sdata;
960 struct mesh_path *mpath;
961
962 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
963
964 rcu_read_lock();
965 mpath = mesh_path_lookup(dst, sdata);
966 if (!mpath) {
967 rcu_read_unlock();
968 return -ENOENT;
969 }
970 memcpy(dst, mpath->dst, ETH_ALEN);
971 mpath_set_pinfo(mpath, next_hop, pinfo);
972 rcu_read_unlock();
973 return 0;
974 }
975
976 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
977 int idx, u8 *dst, u8 *next_hop,
978 struct mpath_info *pinfo)
979 {
980 struct ieee80211_sub_if_data *sdata;
981 struct mesh_path *mpath;
982
983 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
984
985 rcu_read_lock();
986 mpath = mesh_path_lookup_by_idx(idx, sdata);
987 if (!mpath) {
988 rcu_read_unlock();
989 return -ENOENT;
990 }
991 memcpy(dst, mpath->dst, ETH_ALEN);
992 mpath_set_pinfo(mpath, next_hop, pinfo);
993 rcu_read_unlock();
994 return 0;
995 }
996
997 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
998 struct net_device *dev,
999 struct mesh_config *conf)
1000 {
1001 struct ieee80211_sub_if_data *sdata;
1002 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1003
1004 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1005 return 0;
1006 }
1007
1008 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1009 {
1010 return (mask >> (parm-1)) & 0x1;
1011 }
1012
1013 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1014 struct net_device *dev,
1015 const struct mesh_config *nconf, u32 mask)
1016 {
1017 struct mesh_config *conf;
1018 struct ieee80211_sub_if_data *sdata;
1019 struct ieee80211_if_mesh *ifmsh;
1020
1021 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1022 ifmsh = &sdata->u.mesh;
1023
1024 /* Set the config options which we are interested in setting */
1025 conf = &(sdata->u.mesh.mshcfg);
1026 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1027 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1028 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1029 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1030 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1031 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1032 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1033 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1034 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1035 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1036 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1037 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1038 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1039 conf->auto_open_plinks = nconf->auto_open_plinks;
1040 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1041 conf->dot11MeshHWMPmaxPREQretries =
1042 nconf->dot11MeshHWMPmaxPREQretries;
1043 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1044 conf->path_refresh_time = nconf->path_refresh_time;
1045 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1046 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1047 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1048 conf->dot11MeshHWMPactivePathTimeout =
1049 nconf->dot11MeshHWMPactivePathTimeout;
1050 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1051 conf->dot11MeshHWMPpreqMinInterval =
1052 nconf->dot11MeshHWMPpreqMinInterval;
1053 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1054 mask))
1055 conf->dot11MeshHWMPnetDiameterTraversalTime =
1056 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1057 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1058 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1059 ieee80211_mesh_root_setup(ifmsh);
1060 }
1061 return 0;
1062 }
1063
1064 #endif
1065
1066 static int ieee80211_change_bss(struct wiphy *wiphy,
1067 struct net_device *dev,
1068 struct bss_parameters *params)
1069 {
1070 struct ieee80211_sub_if_data *sdata;
1071 u32 changed = 0;
1072
1073 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1074
1075 if (params->use_cts_prot >= 0) {
1076 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1077 changed |= BSS_CHANGED_ERP_CTS_PROT;
1078 }
1079 if (params->use_short_preamble >= 0) {
1080 sdata->vif.bss_conf.use_short_preamble =
1081 params->use_short_preamble;
1082 changed |= BSS_CHANGED_ERP_PREAMBLE;
1083 }
1084
1085 if (!sdata->vif.bss_conf.use_short_slot &&
1086 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1087 sdata->vif.bss_conf.use_short_slot = true;
1088 changed |= BSS_CHANGED_ERP_SLOT;
1089 }
1090
1091 if (params->use_short_slot_time >= 0) {
1092 sdata->vif.bss_conf.use_short_slot =
1093 params->use_short_slot_time;
1094 changed |= BSS_CHANGED_ERP_SLOT;
1095 }
1096
1097 if (params->basic_rates) {
1098 int i, j;
1099 u32 rates = 0;
1100 struct ieee80211_local *local = wiphy_priv(wiphy);
1101 struct ieee80211_supported_band *sband =
1102 wiphy->bands[local->oper_channel->band];
1103
1104 for (i = 0; i < params->basic_rates_len; i++) {
1105 int rate = (params->basic_rates[i] & 0x7f) * 5;
1106 for (j = 0; j < sband->n_bitrates; j++) {
1107 if (sband->bitrates[j].bitrate == rate)
1108 rates |= BIT(j);
1109 }
1110 }
1111 sdata->vif.bss_conf.basic_rates = rates;
1112 changed |= BSS_CHANGED_BASIC_RATES;
1113 }
1114
1115 if (params->ap_isolate >= 0) {
1116 if (params->ap_isolate)
1117 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1118 else
1119 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1120 }
1121
1122 ieee80211_bss_info_change_notify(sdata, changed);
1123
1124 return 0;
1125 }
1126
1127 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1128 struct ieee80211_txq_params *params)
1129 {
1130 struct ieee80211_local *local = wiphy_priv(wiphy);
1131 struct ieee80211_tx_queue_params p;
1132
1133 if (!local->ops->conf_tx)
1134 return -EOPNOTSUPP;
1135
1136 memset(&p, 0, sizeof(p));
1137 p.aifs = params->aifs;
1138 p.cw_max = params->cwmax;
1139 p.cw_min = params->cwmin;
1140 p.txop = params->txop;
1141
1142 /*
1143 * Setting tx queue params disables u-apsd because it's only
1144 * called in master mode.
1145 */
1146 p.uapsd = false;
1147
1148 if (drv_conf_tx(local, params->queue, &p)) {
1149 printk(KERN_DEBUG "%s: failed to set TX queue "
1150 "parameters for queue %d\n",
1151 wiphy_name(local->hw.wiphy), params->queue);
1152 return -EINVAL;
1153 }
1154
1155 /* enable WMM or activate new settings */
1156 local->hw.conf.flags |= IEEE80211_CONF_QOS;
1157 drv_config(local, IEEE80211_CONF_CHANGE_QOS);
1158
1159 return 0;
1160 }
1161
1162 static int ieee80211_set_channel(struct wiphy *wiphy,
1163 struct net_device *netdev,
1164 struct ieee80211_channel *chan,
1165 enum nl80211_channel_type channel_type)
1166 {
1167 struct ieee80211_local *local = wiphy_priv(wiphy);
1168 struct ieee80211_sub_if_data *sdata = NULL;
1169
1170 if (netdev)
1171 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1172
1173 switch (ieee80211_get_channel_mode(local, NULL)) {
1174 case CHAN_MODE_HOPPING:
1175 return -EBUSY;
1176 case CHAN_MODE_FIXED:
1177 if (local->oper_channel != chan)
1178 return -EBUSY;
1179 if (!sdata && local->_oper_channel_type == channel_type)
1180 return 0;
1181 break;
1182 case CHAN_MODE_UNDEFINED:
1183 break;
1184 }
1185
1186 local->oper_channel = chan;
1187
1188 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1189 return -EBUSY;
1190
1191 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1192 if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1193 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1194
1195 return 0;
1196 }
1197
1198 #ifdef CONFIG_PM
1199 static int ieee80211_suspend(struct wiphy *wiphy)
1200 {
1201 return __ieee80211_suspend(wiphy_priv(wiphy));
1202 }
1203
1204 static int ieee80211_resume(struct wiphy *wiphy)
1205 {
1206 return __ieee80211_resume(wiphy_priv(wiphy));
1207 }
1208 #else
1209 #define ieee80211_suspend NULL
1210 #define ieee80211_resume NULL
1211 #endif
1212
1213 static int ieee80211_scan(struct wiphy *wiphy,
1214 struct net_device *dev,
1215 struct cfg80211_scan_request *req)
1216 {
1217 struct ieee80211_sub_if_data *sdata;
1218
1219 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1220
1221 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1222 sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1223 sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1224 (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1225 return -EOPNOTSUPP;
1226
1227 return ieee80211_request_scan(sdata, req);
1228 }
1229
1230 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1231 struct cfg80211_auth_request *req)
1232 {
1233 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1234 }
1235
1236 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1237 struct cfg80211_assoc_request *req)
1238 {
1239 struct ieee80211_local *local = wiphy_priv(wiphy);
1240 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1241
1242 switch (ieee80211_get_channel_mode(local, sdata)) {
1243 case CHAN_MODE_HOPPING:
1244 return -EBUSY;
1245 case CHAN_MODE_FIXED:
1246 if (local->oper_channel == req->bss->channel)
1247 break;
1248 return -EBUSY;
1249 case CHAN_MODE_UNDEFINED:
1250 break;
1251 }
1252
1253 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1254 }
1255
1256 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1257 struct cfg80211_deauth_request *req,
1258 void *cookie)
1259 {
1260 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1261 req, cookie);
1262 }
1263
1264 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1265 struct cfg80211_disassoc_request *req,
1266 void *cookie)
1267 {
1268 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1269 req, cookie);
1270 }
1271
1272 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1273 struct cfg80211_ibss_params *params)
1274 {
1275 struct ieee80211_local *local = wiphy_priv(wiphy);
1276 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1277
1278 switch (ieee80211_get_channel_mode(local, sdata)) {
1279 case CHAN_MODE_HOPPING:
1280 return -EBUSY;
1281 case CHAN_MODE_FIXED:
1282 if (!params->channel_fixed)
1283 return -EBUSY;
1284 if (local->oper_channel == params->channel)
1285 break;
1286 return -EBUSY;
1287 case CHAN_MODE_UNDEFINED:
1288 break;
1289 }
1290
1291 return ieee80211_ibss_join(sdata, params);
1292 }
1293
1294 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1295 {
1296 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1297
1298 return ieee80211_ibss_leave(sdata);
1299 }
1300
1301 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1302 {
1303 struct ieee80211_local *local = wiphy_priv(wiphy);
1304 int err;
1305
1306 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1307 err = drv_set_coverage_class(local, wiphy->coverage_class);
1308
1309 if (err)
1310 return err;
1311 }
1312
1313 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1314 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1315
1316 if (err)
1317 return err;
1318 }
1319
1320 if (changed & WIPHY_PARAM_RETRY_SHORT)
1321 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1322 if (changed & WIPHY_PARAM_RETRY_LONG)
1323 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1324 if (changed &
1325 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1326 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1327
1328 return 0;
1329 }
1330
1331 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1332 enum nl80211_tx_power_setting type, int mbm)
1333 {
1334 struct ieee80211_local *local = wiphy_priv(wiphy);
1335 struct ieee80211_channel *chan = local->hw.conf.channel;
1336 u32 changes = 0;
1337
1338 switch (type) {
1339 case NL80211_TX_POWER_AUTOMATIC:
1340 local->user_power_level = -1;
1341 break;
1342 case NL80211_TX_POWER_LIMITED:
1343 if (mbm < 0 || (mbm % 100))
1344 return -EOPNOTSUPP;
1345 local->user_power_level = MBM_TO_DBM(mbm);
1346 break;
1347 case NL80211_TX_POWER_FIXED:
1348 if (mbm < 0 || (mbm % 100))
1349 return -EOPNOTSUPP;
1350 /* TODO: move to cfg80211 when it knows the channel */
1351 if (MBM_TO_DBM(mbm) > chan->max_power)
1352 return -EINVAL;
1353 local->user_power_level = MBM_TO_DBM(mbm);
1354 break;
1355 }
1356
1357 ieee80211_hw_config(local, changes);
1358
1359 return 0;
1360 }
1361
1362 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1363 {
1364 struct ieee80211_local *local = wiphy_priv(wiphy);
1365
1366 *dbm = local->hw.conf.power_level;
1367
1368 return 0;
1369 }
1370
1371 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1372 u8 *addr)
1373 {
1374 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1375
1376 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1377
1378 return 0;
1379 }
1380
1381 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1382 {
1383 struct ieee80211_local *local = wiphy_priv(wiphy);
1384
1385 drv_rfkill_poll(local);
1386 }
1387
1388 #ifdef CONFIG_NL80211_TESTMODE
1389 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1390 {
1391 struct ieee80211_local *local = wiphy_priv(wiphy);
1392
1393 if (!local->ops->testmode_cmd)
1394 return -EOPNOTSUPP;
1395
1396 return local->ops->testmode_cmd(&local->hw, data, len);
1397 }
1398 #endif
1399
1400 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1401 enum ieee80211_smps_mode smps_mode)
1402 {
1403 const u8 *ap;
1404 enum ieee80211_smps_mode old_req;
1405 int err;
1406
1407 old_req = sdata->u.mgd.req_smps;
1408 sdata->u.mgd.req_smps = smps_mode;
1409
1410 if (old_req == smps_mode &&
1411 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1412 return 0;
1413
1414 /*
1415 * If not associated, or current association is not an HT
1416 * association, there's no need to send an action frame.
1417 */
1418 if (!sdata->u.mgd.associated ||
1419 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1420 mutex_lock(&sdata->local->iflist_mtx);
1421 ieee80211_recalc_smps(sdata->local, sdata);
1422 mutex_unlock(&sdata->local->iflist_mtx);
1423 return 0;
1424 }
1425
1426 ap = sdata->u.mgd.associated->bssid;
1427
1428 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1429 if (sdata->u.mgd.powersave)
1430 smps_mode = IEEE80211_SMPS_DYNAMIC;
1431 else
1432 smps_mode = IEEE80211_SMPS_OFF;
1433 }
1434
1435 /* send SM PS frame to AP */
1436 err = ieee80211_send_smps_action(sdata, smps_mode,
1437 ap, ap);
1438 if (err)
1439 sdata->u.mgd.req_smps = old_req;
1440
1441 return err;
1442 }
1443
1444 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1445 bool enabled, int timeout)
1446 {
1447 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1448 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1449
1450 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1451 return -EOPNOTSUPP;
1452
1453 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1454 return -EOPNOTSUPP;
1455
1456 if (enabled == sdata->u.mgd.powersave &&
1457 timeout == local->dynamic_ps_forced_timeout)
1458 return 0;
1459
1460 sdata->u.mgd.powersave = enabled;
1461 local->dynamic_ps_forced_timeout = timeout;
1462
1463 /* no change, but if automatic follow powersave */
1464 mutex_lock(&sdata->u.mgd.mtx);
1465 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1466 mutex_unlock(&sdata->u.mgd.mtx);
1467
1468 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1469 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1470
1471 ieee80211_recalc_ps(local, -1);
1472
1473 return 0;
1474 }
1475
1476 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1477 struct net_device *dev,
1478 s32 rssi_thold, u32 rssi_hyst)
1479 {
1480 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1481 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1482 struct ieee80211_vif *vif = &sdata->vif;
1483 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1484
1485 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1486 rssi_hyst == bss_conf->cqm_rssi_hyst)
1487 return 0;
1488
1489 bss_conf->cqm_rssi_thold = rssi_thold;
1490 bss_conf->cqm_rssi_hyst = rssi_hyst;
1491
1492 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1493 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1494 return -EOPNOTSUPP;
1495 return 0;
1496 }
1497
1498 /* tell the driver upon association, unless already associated */
1499 if (sdata->u.mgd.associated)
1500 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1501
1502 return 0;
1503 }
1504
1505 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1506 struct net_device *dev,
1507 const u8 *addr,
1508 const struct cfg80211_bitrate_mask *mask)
1509 {
1510 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1511 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1512 int i;
1513
1514 /*
1515 * This _could_ be supported by providing a hook for
1516 * drivers for this function, but at this point it
1517 * doesn't seem worth bothering.
1518 */
1519 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1520 return -EOPNOTSUPP;
1521
1522
1523 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1524 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1525
1526 return 0;
1527 }
1528
1529 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1530 struct net_device *dev,
1531 struct ieee80211_channel *chan,
1532 enum nl80211_channel_type channel_type,
1533 unsigned int duration,
1534 u64 *cookie)
1535 {
1536 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1537
1538 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1539 duration, cookie);
1540 }
1541
1542 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1543 struct net_device *dev,
1544 u64 cookie)
1545 {
1546 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1547
1548 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1549 }
1550
1551 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1552 struct ieee80211_channel *chan,
1553 enum nl80211_channel_type channel_type,
1554 bool channel_type_valid,
1555 const u8 *buf, size_t len, u64 *cookie)
1556 {
1557 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1558 struct ieee80211_local *local = sdata->local;
1559 struct sk_buff *skb;
1560 struct sta_info *sta;
1561 const struct ieee80211_mgmt *mgmt = (void *)buf;
1562 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1563 IEEE80211_TX_CTL_REQ_TX_STATUS;
1564
1565 /* Check that we are on the requested channel for transmission */
1566 if (chan != local->tmp_channel &&
1567 chan != local->oper_channel)
1568 return -EBUSY;
1569 if (channel_type_valid &&
1570 (channel_type != local->tmp_channel_type &&
1571 channel_type != local->_oper_channel_type))
1572 return -EBUSY;
1573
1574 switch (sdata->vif.type) {
1575 case NL80211_IFTYPE_ADHOC:
1576 if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1577 break;
1578 rcu_read_lock();
1579 sta = sta_info_get(sdata, mgmt->da);
1580 rcu_read_unlock();
1581 if (!sta)
1582 return -ENOLINK;
1583 break;
1584 case NL80211_IFTYPE_STATION:
1585 if (!(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED))
1586 flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
1587 break;
1588 default:
1589 return -EOPNOTSUPP;
1590 }
1591
1592 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1593 if (!skb)
1594 return -ENOMEM;
1595 skb_reserve(skb, local->hw.extra_tx_headroom);
1596
1597 memcpy(skb_put(skb, len), buf, len);
1598
1599 IEEE80211_SKB_CB(skb)->flags = flags;
1600
1601 skb->dev = sdata->dev;
1602 ieee80211_tx_skb(sdata, skb);
1603
1604 *cookie = (unsigned long) skb;
1605 return 0;
1606 }
1607
1608 struct cfg80211_ops mac80211_config_ops = {
1609 .add_virtual_intf = ieee80211_add_iface,
1610 .del_virtual_intf = ieee80211_del_iface,
1611 .change_virtual_intf = ieee80211_change_iface,
1612 .add_key = ieee80211_add_key,
1613 .del_key = ieee80211_del_key,
1614 .get_key = ieee80211_get_key,
1615 .set_default_key = ieee80211_config_default_key,
1616 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1617 .add_beacon = ieee80211_add_beacon,
1618 .set_beacon = ieee80211_set_beacon,
1619 .del_beacon = ieee80211_del_beacon,
1620 .add_station = ieee80211_add_station,
1621 .del_station = ieee80211_del_station,
1622 .change_station = ieee80211_change_station,
1623 .get_station = ieee80211_get_station,
1624 .dump_station = ieee80211_dump_station,
1625 .dump_survey = ieee80211_dump_survey,
1626 #ifdef CONFIG_MAC80211_MESH
1627 .add_mpath = ieee80211_add_mpath,
1628 .del_mpath = ieee80211_del_mpath,
1629 .change_mpath = ieee80211_change_mpath,
1630 .get_mpath = ieee80211_get_mpath,
1631 .dump_mpath = ieee80211_dump_mpath,
1632 .set_mesh_params = ieee80211_set_mesh_params,
1633 .get_mesh_params = ieee80211_get_mesh_params,
1634 #endif
1635 .change_bss = ieee80211_change_bss,
1636 .set_txq_params = ieee80211_set_txq_params,
1637 .set_channel = ieee80211_set_channel,
1638 .suspend = ieee80211_suspend,
1639 .resume = ieee80211_resume,
1640 .scan = ieee80211_scan,
1641 .auth = ieee80211_auth,
1642 .assoc = ieee80211_assoc,
1643 .deauth = ieee80211_deauth,
1644 .disassoc = ieee80211_disassoc,
1645 .join_ibss = ieee80211_join_ibss,
1646 .leave_ibss = ieee80211_leave_ibss,
1647 .set_wiphy_params = ieee80211_set_wiphy_params,
1648 .set_tx_power = ieee80211_set_tx_power,
1649 .get_tx_power = ieee80211_get_tx_power,
1650 .set_wds_peer = ieee80211_set_wds_peer,
1651 .rfkill_poll = ieee80211_rfkill_poll,
1652 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1653 .set_power_mgmt = ieee80211_set_power_mgmt,
1654 .set_bitrate_mask = ieee80211_set_bitrate_mask,
1655 .remain_on_channel = ieee80211_remain_on_channel,
1656 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1657 .action = ieee80211_action,
1658 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1659 };
kernel source for telekom puls (alcatel/mediatek)