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mac80211: improve HT channel handling
[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 <net/net_namespace.h>
13 #include <linux/rcupdate.h>
14 #include <net/cfg80211.h>
15 #include "ieee80211_i.h"
16 #include "driver-ops.h"
17 #include "cfg.h"
18 #include "rate.h"
19 #include "mesh.h"
20
21 static bool nl80211_type_check(enum nl80211_iftype type)
22 {
23 switch (type) {
24 case NL80211_IFTYPE_ADHOC:
25 case NL80211_IFTYPE_STATION:
26 case NL80211_IFTYPE_MONITOR:
27 #ifdef CONFIG_MAC80211_MESH
28 case NL80211_IFTYPE_MESH_POINT:
29 #endif
30 case NL80211_IFTYPE_AP:
31 case NL80211_IFTYPE_AP_VLAN:
32 case NL80211_IFTYPE_WDS:
33 return true;
34 default:
35 return false;
36 }
37 }
38
39 static bool nl80211_params_check(enum nl80211_iftype type,
40 struct vif_params *params)
41 {
42 if (!nl80211_type_check(type))
43 return false;
44
45 return true;
46 }
47
48 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
49 enum nl80211_iftype type, u32 *flags,
50 struct vif_params *params)
51 {
52 struct ieee80211_local *local = wiphy_priv(wiphy);
53 struct net_device *dev;
54 struct ieee80211_sub_if_data *sdata;
55 int err;
56
57 if (!nl80211_params_check(type, params))
58 return -EINVAL;
59
60 err = ieee80211_if_add(local, name, &dev, type, params);
61 if (err || type != NL80211_IFTYPE_MONITOR || !flags)
62 return err;
63
64 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
65 sdata->u.mntr_flags = *flags;
66 return 0;
67 }
68
69 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
70 {
71 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
72
73 return 0;
74 }
75
76 static int ieee80211_change_iface(struct wiphy *wiphy,
77 struct net_device *dev,
78 enum nl80211_iftype type, u32 *flags,
79 struct vif_params *params)
80 {
81 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
82 int ret;
83
84 if (ieee80211_sdata_running(sdata))
85 return -EBUSY;
86
87 if (!nl80211_params_check(type, params))
88 return -EINVAL;
89
90 ret = ieee80211_if_change_type(sdata, type);
91 if (ret)
92 return ret;
93
94 if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
95 ieee80211_sdata_set_mesh_id(sdata,
96 params->mesh_id_len,
97 params->mesh_id);
98
99 if (type == NL80211_IFTYPE_AP_VLAN &&
100 params && params->use_4addr == 0)
101 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
102 else if (type == NL80211_IFTYPE_STATION &&
103 params && params->use_4addr >= 0)
104 sdata->u.mgd.use_4addr = params->use_4addr;
105
106 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags)
107 sdata->u.mntr_flags = *flags;
108
109 return 0;
110 }
111
112 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
113 u8 key_idx, const u8 *mac_addr,
114 struct key_params *params)
115 {
116 struct ieee80211_sub_if_data *sdata;
117 struct sta_info *sta = NULL;
118 enum ieee80211_key_alg alg;
119 struct ieee80211_key *key;
120 int err;
121
122 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
123
124 switch (params->cipher) {
125 case WLAN_CIPHER_SUITE_WEP40:
126 case WLAN_CIPHER_SUITE_WEP104:
127 alg = ALG_WEP;
128 break;
129 case WLAN_CIPHER_SUITE_TKIP:
130 alg = ALG_TKIP;
131 break;
132 case WLAN_CIPHER_SUITE_CCMP:
133 alg = ALG_CCMP;
134 break;
135 case WLAN_CIPHER_SUITE_AES_CMAC:
136 alg = ALG_AES_CMAC;
137 break;
138 default:
139 return -EINVAL;
140 }
141
142 key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
143 params->seq_len, params->seq);
144 if (!key)
145 return -ENOMEM;
146
147 rcu_read_lock();
148
149 if (mac_addr) {
150 sta = sta_info_get_bss(sdata, mac_addr);
151 if (!sta) {
152 ieee80211_key_free(key);
153 err = -ENOENT;
154 goto out_unlock;
155 }
156 }
157
158 ieee80211_key_link(key, sdata, sta);
159
160 err = 0;
161 out_unlock:
162 rcu_read_unlock();
163
164 return err;
165 }
166
167 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
168 u8 key_idx, const u8 *mac_addr)
169 {
170 struct ieee80211_sub_if_data *sdata;
171 struct sta_info *sta;
172 int ret;
173
174 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
175
176 rcu_read_lock();
177
178 if (mac_addr) {
179 ret = -ENOENT;
180
181 sta = sta_info_get_bss(sdata, mac_addr);
182 if (!sta)
183 goto out_unlock;
184
185 if (sta->key) {
186 ieee80211_key_free(sta->key);
187 WARN_ON(sta->key);
188 ret = 0;
189 }
190
191 goto out_unlock;
192 }
193
194 if (!sdata->keys[key_idx]) {
195 ret = -ENOENT;
196 goto out_unlock;
197 }
198
199 ieee80211_key_free(sdata->keys[key_idx]);
200 WARN_ON(sdata->keys[key_idx]);
201
202 ret = 0;
203 out_unlock:
204 rcu_read_unlock();
205
206 return ret;
207 }
208
209 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
210 u8 key_idx, const u8 *mac_addr, void *cookie,
211 void (*callback)(void *cookie,
212 struct key_params *params))
213 {
214 struct ieee80211_sub_if_data *sdata;
215 struct sta_info *sta = NULL;
216 u8 seq[6] = {0};
217 struct key_params params;
218 struct ieee80211_key *key;
219 u32 iv32;
220 u16 iv16;
221 int err = -ENOENT;
222
223 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
224
225 rcu_read_lock();
226
227 if (mac_addr) {
228 sta = sta_info_get_bss(sdata, mac_addr);
229 if (!sta)
230 goto out;
231
232 key = sta->key;
233 } else
234 key = sdata->keys[key_idx];
235
236 if (!key)
237 goto out;
238
239 memset(&params, 0, sizeof(params));
240
241 switch (key->conf.alg) {
242 case ALG_TKIP:
243 params.cipher = WLAN_CIPHER_SUITE_TKIP;
244
245 iv32 = key->u.tkip.tx.iv32;
246 iv16 = key->u.tkip.tx.iv16;
247
248 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
249 drv_get_tkip_seq(sdata->local,
250 key->conf.hw_key_idx,
251 &iv32, &iv16);
252
253 seq[0] = iv16 & 0xff;
254 seq[1] = (iv16 >> 8) & 0xff;
255 seq[2] = iv32 & 0xff;
256 seq[3] = (iv32 >> 8) & 0xff;
257 seq[4] = (iv32 >> 16) & 0xff;
258 seq[5] = (iv32 >> 24) & 0xff;
259 params.seq = seq;
260 params.seq_len = 6;
261 break;
262 case ALG_CCMP:
263 params.cipher = 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 ALG_WEP:
274 if (key->conf.keylen == 5)
275 params.cipher = WLAN_CIPHER_SUITE_WEP40;
276 else
277 params.cipher = WLAN_CIPHER_SUITE_WEP104;
278 break;
279 case ALG_AES_CMAC:
280 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
281 seq[0] = key->u.aes_cmac.tx_pn[5];
282 seq[1] = key->u.aes_cmac.tx_pn[4];
283 seq[2] = key->u.aes_cmac.tx_pn[3];
284 seq[3] = key->u.aes_cmac.tx_pn[2];
285 seq[4] = key->u.aes_cmac.tx_pn[1];
286 seq[5] = key->u.aes_cmac.tx_pn[0];
287 params.seq = seq;
288 params.seq_len = 6;
289 break;
290 }
291
292 params.key = key->conf.key;
293 params.key_len = key->conf.keylen;
294
295 callback(cookie, &params);
296 err = 0;
297
298 out:
299 rcu_read_unlock();
300 return err;
301 }
302
303 static int ieee80211_config_default_key(struct wiphy *wiphy,
304 struct net_device *dev,
305 u8 key_idx)
306 {
307 struct ieee80211_sub_if_data *sdata;
308
309 rcu_read_lock();
310
311 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
312 ieee80211_set_default_key(sdata, key_idx);
313
314 rcu_read_unlock();
315
316 return 0;
317 }
318
319 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
320 struct net_device *dev,
321 u8 key_idx)
322 {
323 struct ieee80211_sub_if_data *sdata;
324
325 rcu_read_lock();
326
327 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
328 ieee80211_set_default_mgmt_key(sdata, key_idx);
329
330 rcu_read_unlock();
331
332 return 0;
333 }
334
335 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
336 {
337 struct ieee80211_sub_if_data *sdata = sta->sdata;
338
339 sinfo->generation = sdata->local->sta_generation;
340
341 sinfo->filled = STATION_INFO_INACTIVE_TIME |
342 STATION_INFO_RX_BYTES |
343 STATION_INFO_TX_BYTES |
344 STATION_INFO_RX_PACKETS |
345 STATION_INFO_TX_PACKETS |
346 STATION_INFO_TX_BITRATE;
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
354 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
355 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
356 sinfo->filled |= STATION_INFO_SIGNAL;
357 sinfo->signal = (s8)sta->last_signal;
358 }
359
360 sinfo->txrate.flags = 0;
361 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
362 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
363 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
364 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
365 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
366 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
367
368 if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
369 struct ieee80211_supported_band *sband;
370 sband = sta->local->hw.wiphy->bands[
371 sta->local->hw.conf.channel->band];
372 sinfo->txrate.legacy =
373 sband->bitrates[sta->last_tx_rate.idx].bitrate;
374 } else
375 sinfo->txrate.mcs = sta->last_tx_rate.idx;
376
377 if (ieee80211_vif_is_mesh(&sdata->vif)) {
378 #ifdef CONFIG_MAC80211_MESH
379 sinfo->filled |= STATION_INFO_LLID |
380 STATION_INFO_PLID |
381 STATION_INFO_PLINK_STATE;
382
383 sinfo->llid = le16_to_cpu(sta->llid);
384 sinfo->plid = le16_to_cpu(sta->plid);
385 sinfo->plink_state = sta->plink_state;
386 #endif
387 }
388 }
389
390
391 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
392 int idx, u8 *mac, struct station_info *sinfo)
393 {
394 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
395 struct sta_info *sta;
396 int ret = -ENOENT;
397
398 rcu_read_lock();
399
400 sta = sta_info_get_by_idx(sdata, idx);
401 if (sta) {
402 ret = 0;
403 memcpy(mac, sta->sta.addr, ETH_ALEN);
404 sta_set_sinfo(sta, sinfo);
405 }
406
407 rcu_read_unlock();
408
409 return ret;
410 }
411
412 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
413 int idx, struct survey_info *survey)
414 {
415 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
416
417 if (!local->ops->get_survey)
418 return -EOPNOTSUPP;
419
420 return drv_get_survey(local, idx, survey);
421 }
422
423 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
424 u8 *mac, struct station_info *sinfo)
425 {
426 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
427 struct sta_info *sta;
428 int ret = -ENOENT;
429
430 rcu_read_lock();
431
432 sta = sta_info_get_bss(sdata, mac);
433 if (sta) {
434 ret = 0;
435 sta_set_sinfo(sta, sinfo);
436 }
437
438 rcu_read_unlock();
439
440 return ret;
441 }
442
443 /*
444 * This handles both adding a beacon and setting new beacon info
445 */
446 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
447 struct beacon_parameters *params)
448 {
449 struct beacon_data *new, *old;
450 int new_head_len, new_tail_len;
451 int size;
452 int err = -EINVAL;
453
454 old = sdata->u.ap.beacon;
455
456 /* head must not be zero-length */
457 if (params->head && !params->head_len)
458 return -EINVAL;
459
460 /*
461 * This is a kludge. beacon interval should really be part
462 * of the beacon information.
463 */
464 if (params->interval &&
465 (sdata->vif.bss_conf.beacon_int != params->interval)) {
466 sdata->vif.bss_conf.beacon_int = params->interval;
467 ieee80211_bss_info_change_notify(sdata,
468 BSS_CHANGED_BEACON_INT);
469 }
470
471 /* Need to have a beacon head if we don't have one yet */
472 if (!params->head && !old)
473 return err;
474
475 /* sorry, no way to start beaconing without dtim period */
476 if (!params->dtim_period && !old)
477 return err;
478
479 /* new or old head? */
480 if (params->head)
481 new_head_len = params->head_len;
482 else
483 new_head_len = old->head_len;
484
485 /* new or old tail? */
486 if (params->tail || !old)
487 /* params->tail_len will be zero for !params->tail */
488 new_tail_len = params->tail_len;
489 else
490 new_tail_len = old->tail_len;
491
492 size = sizeof(*new) + new_head_len + new_tail_len;
493
494 new = kzalloc(size, GFP_KERNEL);
495 if (!new)
496 return -ENOMEM;
497
498 /* start filling the new info now */
499
500 /* new or old dtim period? */
501 if (params->dtim_period)
502 new->dtim_period = params->dtim_period;
503 else
504 new->dtim_period = old->dtim_period;
505
506 /*
507 * pointers go into the block we allocated,
508 * memory is | beacon_data | head | tail |
509 */
510 new->head = ((u8 *) new) + sizeof(*new);
511 new->tail = new->head + new_head_len;
512 new->head_len = new_head_len;
513 new->tail_len = new_tail_len;
514
515 /* copy in head */
516 if (params->head)
517 memcpy(new->head, params->head, new_head_len);
518 else
519 memcpy(new->head, old->head, new_head_len);
520
521 /* copy in optional tail */
522 if (params->tail)
523 memcpy(new->tail, params->tail, new_tail_len);
524 else
525 if (old)
526 memcpy(new->tail, old->tail, new_tail_len);
527
528 sdata->vif.bss_conf.dtim_period = new->dtim_period;
529
530 rcu_assign_pointer(sdata->u.ap.beacon, new);
531
532 synchronize_rcu();
533
534 kfree(old);
535
536 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
537 BSS_CHANGED_BEACON);
538 return 0;
539 }
540
541 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
542 struct beacon_parameters *params)
543 {
544 struct ieee80211_sub_if_data *sdata;
545 struct beacon_data *old;
546
547 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
548
549 old = sdata->u.ap.beacon;
550
551 if (old)
552 return -EALREADY;
553
554 return ieee80211_config_beacon(sdata, params);
555 }
556
557 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
558 struct beacon_parameters *params)
559 {
560 struct ieee80211_sub_if_data *sdata;
561 struct beacon_data *old;
562
563 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
564
565 old = sdata->u.ap.beacon;
566
567 if (!old)
568 return -ENOENT;
569
570 return ieee80211_config_beacon(sdata, params);
571 }
572
573 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
574 {
575 struct ieee80211_sub_if_data *sdata;
576 struct beacon_data *old;
577
578 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
579
580 old = sdata->u.ap.beacon;
581
582 if (!old)
583 return -ENOENT;
584
585 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
586 synchronize_rcu();
587 kfree(old);
588
589 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
590 return 0;
591 }
592
593 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
594 struct iapp_layer2_update {
595 u8 da[ETH_ALEN]; /* broadcast */
596 u8 sa[ETH_ALEN]; /* STA addr */
597 __be16 len; /* 6 */
598 u8 dsap; /* 0 */
599 u8 ssap; /* 0 */
600 u8 control;
601 u8 xid_info[3];
602 } __attribute__ ((packed));
603
604 static void ieee80211_send_layer2_update(struct sta_info *sta)
605 {
606 struct iapp_layer2_update *msg;
607 struct sk_buff *skb;
608
609 /* Send Level 2 Update Frame to update forwarding tables in layer 2
610 * bridge devices */
611
612 skb = dev_alloc_skb(sizeof(*msg));
613 if (!skb)
614 return;
615 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
616
617 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
618 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
619
620 memset(msg->da, 0xff, ETH_ALEN);
621 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
622 msg->len = htons(6);
623 msg->dsap = 0;
624 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
625 msg->control = 0xaf; /* XID response lsb.1111F101.
626 * F=0 (no poll command; unsolicited frame) */
627 msg->xid_info[0] = 0x81; /* XID format identifier */
628 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
629 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
630
631 skb->dev = sta->sdata->dev;
632 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
633 memset(skb->cb, 0, sizeof(skb->cb));
634 netif_rx(skb);
635 }
636
637 static void sta_apply_parameters(struct ieee80211_local *local,
638 struct sta_info *sta,
639 struct station_parameters *params)
640 {
641 u32 rates;
642 int i, j;
643 struct ieee80211_supported_band *sband;
644 struct ieee80211_sub_if_data *sdata = sta->sdata;
645 u32 mask, set;
646
647 sband = local->hw.wiphy->bands[local->oper_channel->band];
648
649 spin_lock_bh(&sta->lock);
650 mask = params->sta_flags_mask;
651 set = params->sta_flags_set;
652
653 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
654 sta->flags &= ~WLAN_STA_AUTHORIZED;
655 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
656 sta->flags |= WLAN_STA_AUTHORIZED;
657 }
658
659 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
660 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
661 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
662 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
663 }
664
665 if (mask & BIT(NL80211_STA_FLAG_WME)) {
666 sta->flags &= ~WLAN_STA_WME;
667 if (set & BIT(NL80211_STA_FLAG_WME))
668 sta->flags |= WLAN_STA_WME;
669 }
670
671 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
672 sta->flags &= ~WLAN_STA_MFP;
673 if (set & BIT(NL80211_STA_FLAG_MFP))
674 sta->flags |= WLAN_STA_MFP;
675 }
676 spin_unlock_bh(&sta->lock);
677
678 /*
679 * cfg80211 validates this (1-2007) and allows setting the AID
680 * only when creating a new station entry
681 */
682 if (params->aid)
683 sta->sta.aid = params->aid;
684
685 /*
686 * FIXME: updating the following information is racy when this
687 * function is called from ieee80211_change_station().
688 * However, all this information should be static so
689 * maybe we should just reject attemps to change it.
690 */
691
692 if (params->listen_interval >= 0)
693 sta->listen_interval = params->listen_interval;
694
695 if (params->supported_rates) {
696 rates = 0;
697
698 for (i = 0; i < params->supported_rates_len; i++) {
699 int rate = (params->supported_rates[i] & 0x7f) * 5;
700 for (j = 0; j < sband->n_bitrates; j++) {
701 if (sband->bitrates[j].bitrate == rate)
702 rates |= BIT(j);
703 }
704 }
705 sta->sta.supp_rates[local->oper_channel->band] = rates;
706 }
707
708 if (params->ht_capa)
709 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
710 params->ht_capa,
711 &sta->sta.ht_cap);
712
713 if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
714 switch (params->plink_action) {
715 case PLINK_ACTION_OPEN:
716 mesh_plink_open(sta);
717 break;
718 case PLINK_ACTION_BLOCK:
719 mesh_plink_block(sta);
720 break;
721 }
722 }
723 }
724
725 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
726 u8 *mac, struct station_parameters *params)
727 {
728 struct ieee80211_local *local = wiphy_priv(wiphy);
729 struct sta_info *sta;
730 struct ieee80211_sub_if_data *sdata;
731 int err;
732 int layer2_update;
733
734 if (params->vlan) {
735 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
736
737 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
738 sdata->vif.type != NL80211_IFTYPE_AP)
739 return -EINVAL;
740 } else
741 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
742
743 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
744 return -EINVAL;
745
746 if (is_multicast_ether_addr(mac))
747 return -EINVAL;
748
749 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
750 if (!sta)
751 return -ENOMEM;
752
753 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
754
755 sta_apply_parameters(local, sta, params);
756
757 rate_control_rate_init(sta);
758
759 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
760 sdata->vif.type == NL80211_IFTYPE_AP;
761
762 err = sta_info_insert_rcu(sta);
763 if (err) {
764 rcu_read_unlock();
765 return err;
766 }
767
768 if (layer2_update)
769 ieee80211_send_layer2_update(sta);
770
771 rcu_read_unlock();
772
773 return 0;
774 }
775
776 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
777 u8 *mac)
778 {
779 struct ieee80211_local *local = wiphy_priv(wiphy);
780 struct ieee80211_sub_if_data *sdata;
781
782 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
783
784 if (mac)
785 return sta_info_destroy_addr_bss(sdata, mac);
786
787 sta_info_flush(local, sdata);
788 return 0;
789 }
790
791 static int ieee80211_change_station(struct wiphy *wiphy,
792 struct net_device *dev,
793 u8 *mac,
794 struct station_parameters *params)
795 {
796 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
797 struct ieee80211_local *local = wiphy_priv(wiphy);
798 struct sta_info *sta;
799 struct ieee80211_sub_if_data *vlansdata;
800
801 rcu_read_lock();
802
803 sta = sta_info_get_bss(sdata, mac);
804 if (!sta) {
805 rcu_read_unlock();
806 return -ENOENT;
807 }
808
809 if (params->vlan && params->vlan != sta->sdata->dev) {
810 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
811
812 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
813 vlansdata->vif.type != NL80211_IFTYPE_AP) {
814 rcu_read_unlock();
815 return -EINVAL;
816 }
817
818 if (params->vlan->ieee80211_ptr->use_4addr) {
819 if (vlansdata->u.vlan.sta) {
820 rcu_read_unlock();
821 return -EBUSY;
822 }
823
824 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
825 }
826
827 sta->sdata = vlansdata;
828 ieee80211_send_layer2_update(sta);
829 }
830
831 sta_apply_parameters(local, sta, params);
832
833 rcu_read_unlock();
834
835 return 0;
836 }
837
838 #ifdef CONFIG_MAC80211_MESH
839 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
840 u8 *dst, u8 *next_hop)
841 {
842 struct ieee80211_sub_if_data *sdata;
843 struct mesh_path *mpath;
844 struct sta_info *sta;
845 int err;
846
847 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
848
849 rcu_read_lock();
850 sta = sta_info_get(sdata, next_hop);
851 if (!sta) {
852 rcu_read_unlock();
853 return -ENOENT;
854 }
855
856 err = mesh_path_add(dst, sdata);
857 if (err) {
858 rcu_read_unlock();
859 return err;
860 }
861
862 mpath = mesh_path_lookup(dst, sdata);
863 if (!mpath) {
864 rcu_read_unlock();
865 return -ENXIO;
866 }
867 mesh_path_fix_nexthop(mpath, sta);
868
869 rcu_read_unlock();
870 return 0;
871 }
872
873 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
874 u8 *dst)
875 {
876 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
877
878 if (dst)
879 return mesh_path_del(dst, sdata);
880
881 mesh_path_flush(sdata);
882 return 0;
883 }
884
885 static int ieee80211_change_mpath(struct wiphy *wiphy,
886 struct net_device *dev,
887 u8 *dst, u8 *next_hop)
888 {
889 struct ieee80211_sub_if_data *sdata;
890 struct mesh_path *mpath;
891 struct sta_info *sta;
892
893 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
894
895 rcu_read_lock();
896
897 sta = sta_info_get(sdata, next_hop);
898 if (!sta) {
899 rcu_read_unlock();
900 return -ENOENT;
901 }
902
903 mpath = mesh_path_lookup(dst, sdata);
904 if (!mpath) {
905 rcu_read_unlock();
906 return -ENOENT;
907 }
908
909 mesh_path_fix_nexthop(mpath, sta);
910
911 rcu_read_unlock();
912 return 0;
913 }
914
915 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
916 struct mpath_info *pinfo)
917 {
918 if (mpath->next_hop)
919 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
920 else
921 memset(next_hop, 0, ETH_ALEN);
922
923 pinfo->generation = mesh_paths_generation;
924
925 pinfo->filled = MPATH_INFO_FRAME_QLEN |
926 MPATH_INFO_SN |
927 MPATH_INFO_METRIC |
928 MPATH_INFO_EXPTIME |
929 MPATH_INFO_DISCOVERY_TIMEOUT |
930 MPATH_INFO_DISCOVERY_RETRIES |
931 MPATH_INFO_FLAGS;
932
933 pinfo->frame_qlen = mpath->frame_queue.qlen;
934 pinfo->sn = mpath->sn;
935 pinfo->metric = mpath->metric;
936 if (time_before(jiffies, mpath->exp_time))
937 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
938 pinfo->discovery_timeout =
939 jiffies_to_msecs(mpath->discovery_timeout);
940 pinfo->discovery_retries = mpath->discovery_retries;
941 pinfo->flags = 0;
942 if (mpath->flags & MESH_PATH_ACTIVE)
943 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
944 if (mpath->flags & MESH_PATH_RESOLVING)
945 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
946 if (mpath->flags & MESH_PATH_SN_VALID)
947 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
948 if (mpath->flags & MESH_PATH_FIXED)
949 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
950 if (mpath->flags & MESH_PATH_RESOLVING)
951 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
952
953 pinfo->flags = mpath->flags;
954 }
955
956 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
957 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
958
959 {
960 struct ieee80211_sub_if_data *sdata;
961 struct mesh_path *mpath;
962
963 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
964
965 rcu_read_lock();
966 mpath = mesh_path_lookup(dst, sdata);
967 if (!mpath) {
968 rcu_read_unlock();
969 return -ENOENT;
970 }
971 memcpy(dst, mpath->dst, ETH_ALEN);
972 mpath_set_pinfo(mpath, next_hop, pinfo);
973 rcu_read_unlock();
974 return 0;
975 }
976
977 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
978 int idx, u8 *dst, u8 *next_hop,
979 struct mpath_info *pinfo)
980 {
981 struct ieee80211_sub_if_data *sdata;
982 struct mesh_path *mpath;
983
984 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
985
986 rcu_read_lock();
987 mpath = mesh_path_lookup_by_idx(idx, sdata);
988 if (!mpath) {
989 rcu_read_unlock();
990 return -ENOENT;
991 }
992 memcpy(dst, mpath->dst, ETH_ALEN);
993 mpath_set_pinfo(mpath, next_hop, pinfo);
994 rcu_read_unlock();
995 return 0;
996 }
997
998 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
999 struct net_device *dev,
1000 struct mesh_config *conf)
1001 {
1002 struct ieee80211_sub_if_data *sdata;
1003 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1004
1005 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1006 return 0;
1007 }
1008
1009 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1010 {
1011 return (mask >> (parm-1)) & 0x1;
1012 }
1013
1014 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1015 struct net_device *dev,
1016 const struct mesh_config *nconf, u32 mask)
1017 {
1018 struct mesh_config *conf;
1019 struct ieee80211_sub_if_data *sdata;
1020 struct ieee80211_if_mesh *ifmsh;
1021
1022 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1023 ifmsh = &sdata->u.mesh;
1024
1025 /* Set the config options which we are interested in setting */
1026 conf = &(sdata->u.mesh.mshcfg);
1027 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1028 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1029 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1030 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1031 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1032 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1033 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1034 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1035 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1036 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1037 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1038 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1039 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1040 conf->auto_open_plinks = nconf->auto_open_plinks;
1041 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1042 conf->dot11MeshHWMPmaxPREQretries =
1043 nconf->dot11MeshHWMPmaxPREQretries;
1044 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1045 conf->path_refresh_time = nconf->path_refresh_time;
1046 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1047 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1048 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1049 conf->dot11MeshHWMPactivePathTimeout =
1050 nconf->dot11MeshHWMPactivePathTimeout;
1051 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1052 conf->dot11MeshHWMPpreqMinInterval =
1053 nconf->dot11MeshHWMPpreqMinInterval;
1054 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1055 mask))
1056 conf->dot11MeshHWMPnetDiameterTraversalTime =
1057 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1058 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1059 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1060 ieee80211_mesh_root_setup(ifmsh);
1061 }
1062 return 0;
1063 }
1064
1065 #endif
1066
1067 static int ieee80211_change_bss(struct wiphy *wiphy,
1068 struct net_device *dev,
1069 struct bss_parameters *params)
1070 {
1071 struct ieee80211_sub_if_data *sdata;
1072 u32 changed = 0;
1073
1074 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1075
1076 if (params->use_cts_prot >= 0) {
1077 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1078 changed |= BSS_CHANGED_ERP_CTS_PROT;
1079 }
1080 if (params->use_short_preamble >= 0) {
1081 sdata->vif.bss_conf.use_short_preamble =
1082 params->use_short_preamble;
1083 changed |= BSS_CHANGED_ERP_PREAMBLE;
1084 }
1085
1086 if (!sdata->vif.bss_conf.use_short_slot &&
1087 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1088 sdata->vif.bss_conf.use_short_slot = true;
1089 changed |= BSS_CHANGED_ERP_SLOT;
1090 }
1091
1092 if (params->use_short_slot_time >= 0) {
1093 sdata->vif.bss_conf.use_short_slot =
1094 params->use_short_slot_time;
1095 changed |= BSS_CHANGED_ERP_SLOT;
1096 }
1097
1098 if (params->basic_rates) {
1099 int i, j;
1100 u32 rates = 0;
1101 struct ieee80211_local *local = wiphy_priv(wiphy);
1102 struct ieee80211_supported_band *sband =
1103 wiphy->bands[local->oper_channel->band];
1104
1105 for (i = 0; i < params->basic_rates_len; i++) {
1106 int rate = (params->basic_rates[i] & 0x7f) * 5;
1107 for (j = 0; j < sband->n_bitrates; j++) {
1108 if (sband->bitrates[j].bitrate == rate)
1109 rates |= BIT(j);
1110 }
1111 }
1112 sdata->vif.bss_conf.basic_rates = rates;
1113 changed |= BSS_CHANGED_BASIC_RATES;
1114 }
1115
1116 if (params->ap_isolate >= 0) {
1117 if (params->ap_isolate)
1118 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1119 else
1120 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1121 }
1122
1123 ieee80211_bss_info_change_notify(sdata, changed);
1124
1125 return 0;
1126 }
1127
1128 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1129 struct ieee80211_txq_params *params)
1130 {
1131 struct ieee80211_local *local = wiphy_priv(wiphy);
1132 struct ieee80211_tx_queue_params p;
1133
1134 if (!local->ops->conf_tx)
1135 return -EOPNOTSUPP;
1136
1137 memset(&p, 0, sizeof(p));
1138 p.aifs = params->aifs;
1139 p.cw_max = params->cwmax;
1140 p.cw_min = params->cwmin;
1141 p.txop = params->txop;
1142
1143 /*
1144 * Setting tx queue params disables u-apsd because it's only
1145 * called in master mode.
1146 */
1147 p.uapsd = false;
1148
1149 if (drv_conf_tx(local, params->queue, &p)) {
1150 printk(KERN_DEBUG "%s: failed to set TX queue "
1151 "parameters for queue %d\n",
1152 wiphy_name(local->hw.wiphy), params->queue);
1153 return -EINVAL;
1154 }
1155
1156 /* enable WMM or activate new settings */
1157 local->hw.conf.flags |= IEEE80211_CONF_QOS;
1158 drv_config(local, IEEE80211_CONF_CHANGE_QOS);
1159
1160 return 0;
1161 }
1162
1163 static int ieee80211_set_channel(struct wiphy *wiphy,
1164 struct net_device *netdev,
1165 struct ieee80211_channel *chan,
1166 enum nl80211_channel_type channel_type)
1167 {
1168 struct ieee80211_local *local = wiphy_priv(wiphy);
1169 struct ieee80211_sub_if_data *sdata = NULL;
1170
1171 if (netdev)
1172 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1173
1174 switch (ieee80211_get_channel_mode(local, NULL)) {
1175 case CHAN_MODE_HOPPING:
1176 return -EBUSY;
1177 case CHAN_MODE_FIXED:
1178 if (local->oper_channel != chan)
1179 return -EBUSY;
1180 if (!sdata && local->_oper_channel_type == channel_type)
1181 return 0;
1182 break;
1183 case CHAN_MODE_UNDEFINED:
1184 break;
1185 }
1186
1187 local->oper_channel = chan;
1188
1189 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1190 return -EBUSY;
1191
1192 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1193 if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1194 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1195
1196 return 0;
1197 }
1198
1199 #ifdef CONFIG_PM
1200 static int ieee80211_suspend(struct wiphy *wiphy)
1201 {
1202 return __ieee80211_suspend(wiphy_priv(wiphy));
1203 }
1204
1205 static int ieee80211_resume(struct wiphy *wiphy)
1206 {
1207 return __ieee80211_resume(wiphy_priv(wiphy));
1208 }
1209 #else
1210 #define ieee80211_suspend NULL
1211 #define ieee80211_resume NULL
1212 #endif
1213
1214 static int ieee80211_scan(struct wiphy *wiphy,
1215 struct net_device *dev,
1216 struct cfg80211_scan_request *req)
1217 {
1218 struct ieee80211_sub_if_data *sdata;
1219
1220 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1221
1222 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1223 sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1224 sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1225 (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1226 return -EOPNOTSUPP;
1227
1228 return ieee80211_request_scan(sdata, req);
1229 }
1230
1231 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1232 struct cfg80211_auth_request *req)
1233 {
1234 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1235 }
1236
1237 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1238 struct cfg80211_assoc_request *req)
1239 {
1240 struct ieee80211_local *local = wiphy_priv(wiphy);
1241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1242
1243 switch (ieee80211_get_channel_mode(local, sdata)) {
1244 case CHAN_MODE_HOPPING:
1245 return -EBUSY;
1246 case CHAN_MODE_FIXED:
1247 if (local->oper_channel == req->bss->channel)
1248 break;
1249 return -EBUSY;
1250 case CHAN_MODE_UNDEFINED:
1251 break;
1252 }
1253
1254 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1255 }
1256
1257 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1258 struct cfg80211_deauth_request *req,
1259 void *cookie)
1260 {
1261 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1262 req, cookie);
1263 }
1264
1265 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1266 struct cfg80211_disassoc_request *req,
1267 void *cookie)
1268 {
1269 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1270 req, cookie);
1271 }
1272
1273 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1274 struct cfg80211_ibss_params *params)
1275 {
1276 struct ieee80211_local *local = wiphy_priv(wiphy);
1277 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1278
1279 switch (ieee80211_get_channel_mode(local, sdata)) {
1280 case CHAN_MODE_HOPPING:
1281 return -EBUSY;
1282 case CHAN_MODE_FIXED:
1283 if (!params->channel_fixed)
1284 return -EBUSY;
1285 if (local->oper_channel == params->channel)
1286 break;
1287 return -EBUSY;
1288 case CHAN_MODE_UNDEFINED:
1289 break;
1290 }
1291
1292 return ieee80211_ibss_join(sdata, params);
1293 }
1294
1295 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1296 {
1297 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1298
1299 return ieee80211_ibss_leave(sdata);
1300 }
1301
1302 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1303 {
1304 struct ieee80211_local *local = wiphy_priv(wiphy);
1305 int err;
1306
1307 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1308 err = drv_set_coverage_class(local, wiphy->coverage_class);
1309
1310 if (err)
1311 return err;
1312 }
1313
1314 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1315 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1316
1317 if (err)
1318 return err;
1319 }
1320
1321 if (changed & WIPHY_PARAM_RETRY_SHORT)
1322 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1323 if (changed & WIPHY_PARAM_RETRY_LONG)
1324 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1325 if (changed &
1326 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1327 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1328
1329 return 0;
1330 }
1331
1332 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1333 enum tx_power_setting type, int dbm)
1334 {
1335 struct ieee80211_local *local = wiphy_priv(wiphy);
1336 struct ieee80211_channel *chan = local->hw.conf.channel;
1337 u32 changes = 0;
1338
1339 switch (type) {
1340 case TX_POWER_AUTOMATIC:
1341 local->user_power_level = -1;
1342 break;
1343 case TX_POWER_LIMITED:
1344 if (dbm < 0)
1345 return -EINVAL;
1346 local->user_power_level = dbm;
1347 break;
1348 case TX_POWER_FIXED:
1349 if (dbm < 0)
1350 return -EINVAL;
1351 /* TODO: move to cfg80211 when it knows the channel */
1352 if (dbm > chan->max_power)
1353 return -EINVAL;
1354 local->user_power_level = dbm;
1355 break;
1356 }
1357
1358 ieee80211_hw_config(local, changes);
1359
1360 return 0;
1361 }
1362
1363 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1364 {
1365 struct ieee80211_local *local = wiphy_priv(wiphy);
1366
1367 *dbm = local->hw.conf.power_level;
1368
1369 return 0;
1370 }
1371
1372 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1373 u8 *addr)
1374 {
1375 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1376
1377 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1378
1379 return 0;
1380 }
1381
1382 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1383 {
1384 struct ieee80211_local *local = wiphy_priv(wiphy);
1385
1386 drv_rfkill_poll(local);
1387 }
1388
1389 #ifdef CONFIG_NL80211_TESTMODE
1390 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1391 {
1392 struct ieee80211_local *local = wiphy_priv(wiphy);
1393
1394 if (!local->ops->testmode_cmd)
1395 return -EOPNOTSUPP;
1396
1397 return local->ops->testmode_cmd(&local->hw, data, len);
1398 }
1399 #endif
1400
1401 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1402 enum ieee80211_smps_mode smps_mode)
1403 {
1404 const u8 *ap;
1405 enum ieee80211_smps_mode old_req;
1406 int err;
1407
1408 old_req = sdata->u.mgd.req_smps;
1409 sdata->u.mgd.req_smps = smps_mode;
1410
1411 if (old_req == smps_mode &&
1412 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1413 return 0;
1414
1415 /*
1416 * If not associated, or current association is not an HT
1417 * association, there's no need to send an action frame.
1418 */
1419 if (!sdata->u.mgd.associated ||
1420 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1421 mutex_lock(&sdata->local->iflist_mtx);
1422 ieee80211_recalc_smps(sdata->local, sdata);
1423 mutex_unlock(&sdata->local->iflist_mtx);
1424 return 0;
1425 }
1426
1427 ap = sdata->u.mgd.associated->bssid;
1428
1429 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1430 if (sdata->u.mgd.powersave)
1431 smps_mode = IEEE80211_SMPS_DYNAMIC;
1432 else
1433 smps_mode = IEEE80211_SMPS_OFF;
1434 }
1435
1436 /* send SM PS frame to AP */
1437 err = ieee80211_send_smps_action(sdata, smps_mode,
1438 ap, ap);
1439 if (err)
1440 sdata->u.mgd.req_smps = old_req;
1441
1442 return err;
1443 }
1444
1445 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1446 bool enabled, int timeout)
1447 {
1448 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1449 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1450 struct ieee80211_conf *conf = &local->hw.conf;
1451
1452 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1453 return -EOPNOTSUPP;
1454
1455 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1456 return -EOPNOTSUPP;
1457
1458 if (enabled == sdata->u.mgd.powersave &&
1459 timeout == conf->dynamic_ps_forced_timeout)
1460 return 0;
1461
1462 sdata->u.mgd.powersave = enabled;
1463 conf->dynamic_ps_forced_timeout = timeout;
1464
1465 /* no change, but if automatic follow powersave */
1466 mutex_lock(&sdata->u.mgd.mtx);
1467 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1468 mutex_unlock(&sdata->u.mgd.mtx);
1469
1470 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1471 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1472
1473 ieee80211_recalc_ps(local, -1);
1474
1475 return 0;
1476 }
1477
1478 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1479 struct net_device *dev,
1480 s32 rssi_thold, u32 rssi_hyst)
1481 {
1482 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1483 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1484 struct ieee80211_vif *vif = &sdata->vif;
1485 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1486
1487 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1488 rssi_hyst == bss_conf->cqm_rssi_hyst)
1489 return 0;
1490
1491 bss_conf->cqm_rssi_thold = rssi_thold;
1492 bss_conf->cqm_rssi_hyst = rssi_hyst;
1493
1494 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1495 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1496 return -EOPNOTSUPP;
1497 return 0;
1498 }
1499
1500 /* tell the driver upon association, unless already associated */
1501 if (sdata->u.mgd.associated)
1502 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1503
1504 return 0;
1505 }
1506
1507 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1508 struct net_device *dev,
1509 const u8 *addr,
1510 const struct cfg80211_bitrate_mask *mask)
1511 {
1512 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1513 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1514 int i;
1515
1516 /*
1517 * This _could_ be supported by providing a hook for
1518 * drivers for this function, but at this point it
1519 * doesn't seem worth bothering.
1520 */
1521 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1522 return -EOPNOTSUPP;
1523
1524
1525 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1526 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1527
1528 return 0;
1529 }
1530
1531 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1532 struct net_device *dev,
1533 struct ieee80211_channel *chan,
1534 enum nl80211_channel_type channel_type,
1535 unsigned int duration,
1536 u64 *cookie)
1537 {
1538 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1539
1540 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1541 duration, cookie);
1542 }
1543
1544 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1545 struct net_device *dev,
1546 u64 cookie)
1547 {
1548 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1549
1550 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1551 }
1552
1553 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1554 struct ieee80211_channel *chan,
1555 enum nl80211_channel_type channel_type,
1556 const u8 *buf, size_t len, u64 *cookie)
1557 {
1558 return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan,
1559 channel_type, buf, len, cookie);
1560 }
1561
1562 struct cfg80211_ops mac80211_config_ops = {
1563 .add_virtual_intf = ieee80211_add_iface,
1564 .del_virtual_intf = ieee80211_del_iface,
1565 .change_virtual_intf = ieee80211_change_iface,
1566 .add_key = ieee80211_add_key,
1567 .del_key = ieee80211_del_key,
1568 .get_key = ieee80211_get_key,
1569 .set_default_key = ieee80211_config_default_key,
1570 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1571 .add_beacon = ieee80211_add_beacon,
1572 .set_beacon = ieee80211_set_beacon,
1573 .del_beacon = ieee80211_del_beacon,
1574 .add_station = ieee80211_add_station,
1575 .del_station = ieee80211_del_station,
1576 .change_station = ieee80211_change_station,
1577 .get_station = ieee80211_get_station,
1578 .dump_station = ieee80211_dump_station,
1579 .dump_survey = ieee80211_dump_survey,
1580 #ifdef CONFIG_MAC80211_MESH
1581 .add_mpath = ieee80211_add_mpath,
1582 .del_mpath = ieee80211_del_mpath,
1583 .change_mpath = ieee80211_change_mpath,
1584 .get_mpath = ieee80211_get_mpath,
1585 .dump_mpath = ieee80211_dump_mpath,
1586 .set_mesh_params = ieee80211_set_mesh_params,
1587 .get_mesh_params = ieee80211_get_mesh_params,
1588 #endif
1589 .change_bss = ieee80211_change_bss,
1590 .set_txq_params = ieee80211_set_txq_params,
1591 .set_channel = ieee80211_set_channel,
1592 .suspend = ieee80211_suspend,
1593 .resume = ieee80211_resume,
1594 .scan = ieee80211_scan,
1595 .auth = ieee80211_auth,
1596 .assoc = ieee80211_assoc,
1597 .deauth = ieee80211_deauth,
1598 .disassoc = ieee80211_disassoc,
1599 .join_ibss = ieee80211_join_ibss,
1600 .leave_ibss = ieee80211_leave_ibss,
1601 .set_wiphy_params = ieee80211_set_wiphy_params,
1602 .set_tx_power = ieee80211_set_tx_power,
1603 .get_tx_power = ieee80211_get_tx_power,
1604 .set_wds_peer = ieee80211_set_wds_peer,
1605 .rfkill_poll = ieee80211_rfkill_poll,
1606 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1607 .set_power_mgmt = ieee80211_set_power_mgmt,
1608 .set_bitrate_mask = ieee80211_set_bitrate_mask,
1609 .remain_on_channel = ieee80211_remain_on_channel,
1610 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1611 .action = ieee80211_action,
1612 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1613 };
kernel source for telekom puls (alcatel/mediatek)