mac80211: allow station add/remove to sleep
[linux-2.6.git] / net / mac80211 / cfg.c
1 /*
2  * mac80211 configuration hooks for cfg80211
3  *
4  * Copyright 2006, 2007 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 (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
100                 return 0;
101
102         if (type == NL80211_IFTYPE_AP_VLAN &&
103             params && params->use_4addr == 0)
104                 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
105         else if (type == NL80211_IFTYPE_STATION &&
106                  params && params->use_4addr >= 0)
107                 sdata->u.mgd.use_4addr = params->use_4addr;
108
109         sdata->u.mntr_flags = *flags;
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         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
124
125         switch (params->cipher) {
126         case WLAN_CIPHER_SUITE_WEP40:
127         case WLAN_CIPHER_SUITE_WEP104:
128                 alg = ALG_WEP;
129                 break;
130         case WLAN_CIPHER_SUITE_TKIP:
131                 alg = ALG_TKIP;
132                 break;
133         case WLAN_CIPHER_SUITE_CCMP:
134                 alg = ALG_CCMP;
135                 break;
136         case WLAN_CIPHER_SUITE_AES_CMAC:
137                 alg = ALG_AES_CMAC;
138                 break;
139         default:
140                 return -EINVAL;
141         }
142
143         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
144                                   params->seq_len, params->seq);
145         if (!key)
146                 return -ENOMEM;
147
148         rcu_read_lock();
149
150         if (mac_addr) {
151                 sta = sta_info_get_bss(sdata, mac_addr);
152                 if (!sta) {
153                         ieee80211_key_free(key);
154                         err = -ENOENT;
155                         goto out_unlock;
156                 }
157         }
158
159         ieee80211_key_link(key, sdata, sta);
160
161         err = 0;
162  out_unlock:
163         rcu_read_unlock();
164
165         return err;
166 }
167
168 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
169                              u8 key_idx, const u8 *mac_addr)
170 {
171         struct ieee80211_sub_if_data *sdata;
172         struct sta_info *sta;
173         int ret;
174
175         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
176
177         rcu_read_lock();
178
179         if (mac_addr) {
180                 ret = -ENOENT;
181
182                 sta = sta_info_get_bss(sdata, mac_addr);
183                 if (!sta)
184                         goto out_unlock;
185
186                 if (sta->key) {
187                         ieee80211_key_free(sta->key);
188                         WARN_ON(sta->key);
189                         ret = 0;
190                 }
191
192                 goto out_unlock;
193         }
194
195         if (!sdata->keys[key_idx]) {
196                 ret = -ENOENT;
197                 goto out_unlock;
198         }
199
200         ieee80211_key_free(sdata->keys[key_idx]);
201         WARN_ON(sdata->keys[key_idx]);
202
203         ret = 0;
204  out_unlock:
205         rcu_read_unlock();
206
207         return ret;
208 }
209
210 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
211                              u8 key_idx, const u8 *mac_addr, void *cookie,
212                              void (*callback)(void *cookie,
213                                               struct key_params *params))
214 {
215         struct ieee80211_sub_if_data *sdata;
216         struct sta_info *sta = NULL;
217         u8 seq[6] = {0};
218         struct key_params params;
219         struct ieee80211_key *key;
220         u32 iv32;
221         u16 iv16;
222         int err = -ENOENT;
223
224         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
225
226         rcu_read_lock();
227
228         if (mac_addr) {
229                 sta = sta_info_get_bss(sdata, mac_addr);
230                 if (!sta)
231                         goto out;
232
233                 key = sta->key;
234         } else
235                 key = sdata->keys[key_idx];
236
237         if (!key)
238                 goto out;
239
240         memset(&params, 0, sizeof(params));
241
242         switch (key->conf.alg) {
243         case ALG_TKIP:
244                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
245
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 ALG_CCMP:
264                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
265                 seq[0] = key->u.ccmp.tx_pn[5];
266                 seq[1] = key->u.ccmp.tx_pn[4];
267                 seq[2] = key->u.ccmp.tx_pn[3];
268                 seq[3] = key->u.ccmp.tx_pn[2];
269                 seq[4] = key->u.ccmp.tx_pn[1];
270                 seq[5] = key->u.ccmp.tx_pn[0];
271                 params.seq = seq;
272                 params.seq_len = 6;
273                 break;
274         case ALG_WEP:
275                 if (key->conf.keylen == 5)
276                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
277                 else
278                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
279                 break;
280         case ALG_AES_CMAC:
281                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
282                 seq[0] = key->u.aes_cmac.tx_pn[5];
283                 seq[1] = key->u.aes_cmac.tx_pn[4];
284                 seq[2] = key->u.aes_cmac.tx_pn[3];
285                 seq[3] = key->u.aes_cmac.tx_pn[2];
286                 seq[4] = key->u.aes_cmac.tx_pn[1];
287                 seq[5] = key->u.aes_cmac.tx_pn[0];
288                 params.seq = seq;
289                 params.seq_len = 6;
290                 break;
291         }
292
293         params.key = key->conf.key;
294         params.key_len = key->conf.keylen;
295
296         callback(cookie, &params);
297         err = 0;
298
299  out:
300         rcu_read_unlock();
301         return err;
302 }
303
304 static int ieee80211_config_default_key(struct wiphy *wiphy,
305                                         struct net_device *dev,
306                                         u8 key_idx)
307 {
308         struct ieee80211_sub_if_data *sdata;
309
310         rcu_read_lock();
311
312         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
313         ieee80211_set_default_key(sdata, key_idx);
314
315         rcu_read_unlock();
316
317         return 0;
318 }
319
320 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
321                                              struct net_device *dev,
322                                              u8 key_idx)
323 {
324         struct ieee80211_sub_if_data *sdata;
325
326         rcu_read_lock();
327
328         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
329         ieee80211_set_default_mgmt_key(sdata, key_idx);
330
331         rcu_read_unlock();
332
333         return 0;
334 }
335
336 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
337 {
338         struct ieee80211_sub_if_data *sdata = sta->sdata;
339
340         sinfo->generation = sdata->local->sta_generation;
341
342         sinfo->filled = STATION_INFO_INACTIVE_TIME |
343                         STATION_INFO_RX_BYTES |
344                         STATION_INFO_TX_BYTES |
345                         STATION_INFO_RX_PACKETS |
346                         STATION_INFO_TX_PACKETS |
347                         STATION_INFO_TX_BITRATE;
348
349         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
350         sinfo->rx_bytes = sta->rx_bytes;
351         sinfo->tx_bytes = sta->tx_bytes;
352         sinfo->rx_packets = sta->rx_packets;
353         sinfo->tx_packets = sta->tx_packets;
354
355         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
356             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
357                 sinfo->filled |= STATION_INFO_SIGNAL;
358                 sinfo->signal = (s8)sta->last_signal;
359         }
360
361         sinfo->txrate.flags = 0;
362         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
363                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
364         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
365                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
366         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
367                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
368
369         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
370                 struct ieee80211_supported_band *sband;
371                 sband = sta->local->hw.wiphy->bands[
372                                 sta->local->hw.conf.channel->band];
373                 sinfo->txrate.legacy =
374                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
375         } else
376                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
377
378         if (ieee80211_vif_is_mesh(&sdata->vif)) {
379 #ifdef CONFIG_MAC80211_MESH
380                 sinfo->filled |= STATION_INFO_LLID |
381                                  STATION_INFO_PLID |
382                                  STATION_INFO_PLINK_STATE;
383
384                 sinfo->llid = le16_to_cpu(sta->llid);
385                 sinfo->plid = le16_to_cpu(sta->plid);
386                 sinfo->plink_state = sta->plink_state;
387 #endif
388         }
389 }
390
391
392 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
393                                  int idx, u8 *mac, struct station_info *sinfo)
394 {
395         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
396         struct sta_info *sta;
397         int ret = -ENOENT;
398
399         rcu_read_lock();
400
401         sta = sta_info_get_by_idx(sdata, idx);
402         if (sta) {
403                 ret = 0;
404                 memcpy(mac, sta->sta.addr, ETH_ALEN);
405                 sta_set_sinfo(sta, sinfo);
406         }
407
408         rcu_read_unlock();
409
410         return ret;
411 }
412
413 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
414                                  u8 *mac, struct station_info *sinfo)
415 {
416         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
417         struct sta_info *sta;
418         int ret = -ENOENT;
419
420         rcu_read_lock();
421
422         sta = sta_info_get_bss(sdata, mac);
423         if (sta) {
424                 ret = 0;
425                 sta_set_sinfo(sta, sinfo);
426         }
427
428         rcu_read_unlock();
429
430         return ret;
431 }
432
433 /*
434  * This handles both adding a beacon and setting new beacon info
435  */
436 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
437                                    struct beacon_parameters *params)
438 {
439         struct beacon_data *new, *old;
440         int new_head_len, new_tail_len;
441         int size;
442         int err = -EINVAL;
443
444         old = sdata->u.ap.beacon;
445
446         /* head must not be zero-length */
447         if (params->head && !params->head_len)
448                 return -EINVAL;
449
450         /*
451          * This is a kludge. beacon interval should really be part
452          * of the beacon information.
453          */
454         if (params->interval &&
455             (sdata->vif.bss_conf.beacon_int != params->interval)) {
456                 sdata->vif.bss_conf.beacon_int = params->interval;
457                 ieee80211_bss_info_change_notify(sdata,
458                                                  BSS_CHANGED_BEACON_INT);
459         }
460
461         /* Need to have a beacon head if we don't have one yet */
462         if (!params->head && !old)
463                 return err;
464
465         /* sorry, no way to start beaconing without dtim period */
466         if (!params->dtim_period && !old)
467                 return err;
468
469         /* new or old head? */
470         if (params->head)
471                 new_head_len = params->head_len;
472         else
473                 new_head_len = old->head_len;
474
475         /* new or old tail? */
476         if (params->tail || !old)
477                 /* params->tail_len will be zero for !params->tail */
478                 new_tail_len = params->tail_len;
479         else
480                 new_tail_len = old->tail_len;
481
482         size = sizeof(*new) + new_head_len + new_tail_len;
483
484         new = kzalloc(size, GFP_KERNEL);
485         if (!new)
486                 return -ENOMEM;
487
488         /* start filling the new info now */
489
490         /* new or old dtim period? */
491         if (params->dtim_period)
492                 new->dtim_period = params->dtim_period;
493         else
494                 new->dtim_period = old->dtim_period;
495
496         /*
497          * pointers go into the block we allocated,
498          * memory is | beacon_data | head | tail |
499          */
500         new->head = ((u8 *) new) + sizeof(*new);
501         new->tail = new->head + new_head_len;
502         new->head_len = new_head_len;
503         new->tail_len = new_tail_len;
504
505         /* copy in head */
506         if (params->head)
507                 memcpy(new->head, params->head, new_head_len);
508         else
509                 memcpy(new->head, old->head, new_head_len);
510
511         /* copy in optional tail */
512         if (params->tail)
513                 memcpy(new->tail, params->tail, new_tail_len);
514         else
515                 if (old)
516                         memcpy(new->tail, old->tail, new_tail_len);
517
518         rcu_assign_pointer(sdata->u.ap.beacon, new);
519
520         synchronize_rcu();
521
522         kfree(old);
523
524         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
525                                                 BSS_CHANGED_BEACON);
526         return 0;
527 }
528
529 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
530                                 struct beacon_parameters *params)
531 {
532         struct ieee80211_sub_if_data *sdata;
533         struct beacon_data *old;
534
535         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
536
537         old = sdata->u.ap.beacon;
538
539         if (old)
540                 return -EALREADY;
541
542         return ieee80211_config_beacon(sdata, params);
543 }
544
545 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
546                                 struct beacon_parameters *params)
547 {
548         struct ieee80211_sub_if_data *sdata;
549         struct beacon_data *old;
550
551         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
552
553         old = sdata->u.ap.beacon;
554
555         if (!old)
556                 return -ENOENT;
557
558         return ieee80211_config_beacon(sdata, params);
559 }
560
561 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
562 {
563         struct ieee80211_sub_if_data *sdata;
564         struct beacon_data *old;
565
566         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
567
568         old = sdata->u.ap.beacon;
569
570         if (!old)
571                 return -ENOENT;
572
573         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
574         synchronize_rcu();
575         kfree(old);
576
577         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
578         return 0;
579 }
580
581 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
582 struct iapp_layer2_update {
583         u8 da[ETH_ALEN];        /* broadcast */
584         u8 sa[ETH_ALEN];        /* STA addr */
585         __be16 len;             /* 6 */
586         u8 dsap;                /* 0 */
587         u8 ssap;                /* 0 */
588         u8 control;
589         u8 xid_info[3];
590 } __attribute__ ((packed));
591
592 static void ieee80211_send_layer2_update(struct sta_info *sta)
593 {
594         struct iapp_layer2_update *msg;
595         struct sk_buff *skb;
596
597         /* Send Level 2 Update Frame to update forwarding tables in layer 2
598          * bridge devices */
599
600         skb = dev_alloc_skb(sizeof(*msg));
601         if (!skb)
602                 return;
603         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
604
605         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
606          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
607
608         memset(msg->da, 0xff, ETH_ALEN);
609         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
610         msg->len = htons(6);
611         msg->dsap = 0;
612         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
613         msg->control = 0xaf;    /* XID response lsb.1111F101.
614                                  * F=0 (no poll command; unsolicited frame) */
615         msg->xid_info[0] = 0x81;        /* XID format identifier */
616         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
617         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
618
619         skb->dev = sta->sdata->dev;
620         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
621         memset(skb->cb, 0, sizeof(skb->cb));
622         netif_rx(skb);
623 }
624
625 static void sta_apply_parameters(struct ieee80211_local *local,
626                                  struct sta_info *sta,
627                                  struct station_parameters *params)
628 {
629         u32 rates;
630         int i, j;
631         struct ieee80211_supported_band *sband;
632         struct ieee80211_sub_if_data *sdata = sta->sdata;
633         u32 mask, set;
634
635         sband = local->hw.wiphy->bands[local->oper_channel->band];
636
637         spin_lock_bh(&sta->lock);
638         mask = params->sta_flags_mask;
639         set = params->sta_flags_set;
640
641         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
642                 sta->flags &= ~WLAN_STA_AUTHORIZED;
643                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
644                         sta->flags |= WLAN_STA_AUTHORIZED;
645         }
646
647         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
648                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
649                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
650                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
651         }
652
653         if (mask & BIT(NL80211_STA_FLAG_WME)) {
654                 sta->flags &= ~WLAN_STA_WME;
655                 if (set & BIT(NL80211_STA_FLAG_WME))
656                         sta->flags |= WLAN_STA_WME;
657         }
658
659         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
660                 sta->flags &= ~WLAN_STA_MFP;
661                 if (set & BIT(NL80211_STA_FLAG_MFP))
662                         sta->flags |= WLAN_STA_MFP;
663         }
664         spin_unlock_bh(&sta->lock);
665
666         /*
667          * cfg80211 validates this (1-2007) and allows setting the AID
668          * only when creating a new station entry
669          */
670         if (params->aid)
671                 sta->sta.aid = params->aid;
672
673         /*
674          * FIXME: updating the following information is racy when this
675          *        function is called from ieee80211_change_station().
676          *        However, all this information should be static so
677          *        maybe we should just reject attemps to change it.
678          */
679
680         if (params->listen_interval >= 0)
681                 sta->listen_interval = params->listen_interval;
682
683         if (params->supported_rates) {
684                 rates = 0;
685
686                 for (i = 0; i < params->supported_rates_len; i++) {
687                         int rate = (params->supported_rates[i] & 0x7f) * 5;
688                         for (j = 0; j < sband->n_bitrates; j++) {
689                                 if (sband->bitrates[j].bitrate == rate)
690                                         rates |= BIT(j);
691                         }
692                 }
693                 sta->sta.supp_rates[local->oper_channel->band] = rates;
694         }
695
696         if (params->ht_capa)
697                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
698                                                   params->ht_capa,
699                                                   &sta->sta.ht_cap);
700
701         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
702                 switch (params->plink_action) {
703                 case PLINK_ACTION_OPEN:
704                         mesh_plink_open(sta);
705                         break;
706                 case PLINK_ACTION_BLOCK:
707                         mesh_plink_block(sta);
708                         break;
709                 }
710         }
711 }
712
713 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
714                                  u8 *mac, struct station_parameters *params)
715 {
716         struct ieee80211_local *local = wiphy_priv(wiphy);
717         struct sta_info *sta;
718         struct ieee80211_sub_if_data *sdata;
719         int err;
720         int layer2_update;
721
722         if (params->vlan) {
723                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
724
725                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
726                     sdata->vif.type != NL80211_IFTYPE_AP)
727                         return -EINVAL;
728         } else
729                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
730
731         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
732                 return -EINVAL;
733
734         if (is_multicast_ether_addr(mac))
735                 return -EINVAL;
736
737         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
738         if (!sta)
739                 return -ENOMEM;
740
741         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
742
743         sta_apply_parameters(local, sta, params);
744
745         rate_control_rate_init(sta);
746
747         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
748                 sdata->vif.type == NL80211_IFTYPE_AP;
749
750         err = sta_info_insert_rcu(sta);
751         if (err) {
752                 rcu_read_unlock();
753                 return err;
754         }
755
756         if (layer2_update)
757                 ieee80211_send_layer2_update(sta);
758
759         rcu_read_unlock();
760
761         return 0;
762 }
763
764 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
765                                  u8 *mac)
766 {
767         struct ieee80211_local *local = wiphy_priv(wiphy);
768         struct ieee80211_sub_if_data *sdata;
769
770         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
771
772         if (mac)
773                 return sta_info_destroy_addr_bss(sdata, mac);
774
775         sta_info_flush(local, sdata);
776         return 0;
777 }
778
779 static int ieee80211_change_station(struct wiphy *wiphy,
780                                     struct net_device *dev,
781                                     u8 *mac,
782                                     struct station_parameters *params)
783 {
784         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
785         struct ieee80211_local *local = wiphy_priv(wiphy);
786         struct sta_info *sta;
787         struct ieee80211_sub_if_data *vlansdata;
788
789         rcu_read_lock();
790
791         sta = sta_info_get_bss(sdata, mac);
792         if (!sta) {
793                 rcu_read_unlock();
794                 return -ENOENT;
795         }
796
797         if (params->vlan && params->vlan != sta->sdata->dev) {
798                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
799
800                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
801                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
802                         rcu_read_unlock();
803                         return -EINVAL;
804                 }
805
806                 if (params->vlan->ieee80211_ptr->use_4addr) {
807                         if (vlansdata->u.vlan.sta) {
808                                 rcu_read_unlock();
809                                 return -EBUSY;
810                         }
811
812                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
813                 }
814
815                 sta->sdata = vlansdata;
816                 ieee80211_send_layer2_update(sta);
817         }
818
819         sta_apply_parameters(local, sta, params);
820
821         rcu_read_unlock();
822
823         return 0;
824 }
825
826 #ifdef CONFIG_MAC80211_MESH
827 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
828                                  u8 *dst, u8 *next_hop)
829 {
830         struct ieee80211_sub_if_data *sdata;
831         struct mesh_path *mpath;
832         struct sta_info *sta;
833         int err;
834
835         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
836
837         rcu_read_lock();
838         sta = sta_info_get(sdata, next_hop);
839         if (!sta) {
840                 rcu_read_unlock();
841                 return -ENOENT;
842         }
843
844         err = mesh_path_add(dst, sdata);
845         if (err) {
846                 rcu_read_unlock();
847                 return err;
848         }
849
850         mpath = mesh_path_lookup(dst, sdata);
851         if (!mpath) {
852                 rcu_read_unlock();
853                 return -ENXIO;
854         }
855         mesh_path_fix_nexthop(mpath, sta);
856
857         rcu_read_unlock();
858         return 0;
859 }
860
861 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
862                                  u8 *dst)
863 {
864         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
865
866         if (dst)
867                 return mesh_path_del(dst, sdata);
868
869         mesh_path_flush(sdata);
870         return 0;
871 }
872
873 static int ieee80211_change_mpath(struct wiphy *wiphy,
874                                     struct net_device *dev,
875                                     u8 *dst, u8 *next_hop)
876 {
877         struct ieee80211_sub_if_data *sdata;
878         struct mesh_path *mpath;
879         struct sta_info *sta;
880
881         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
882
883         rcu_read_lock();
884
885         sta = sta_info_get(sdata, next_hop);
886         if (!sta) {
887                 rcu_read_unlock();
888                 return -ENOENT;
889         }
890
891         mpath = mesh_path_lookup(dst, sdata);
892         if (!mpath) {
893                 rcu_read_unlock();
894                 return -ENOENT;
895         }
896
897         mesh_path_fix_nexthop(mpath, sta);
898
899         rcu_read_unlock();
900         return 0;
901 }
902
903 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
904                             struct mpath_info *pinfo)
905 {
906         if (mpath->next_hop)
907                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
908         else
909                 memset(next_hop, 0, ETH_ALEN);
910
911         pinfo->generation = mesh_paths_generation;
912
913         pinfo->filled = MPATH_INFO_FRAME_QLEN |
914                         MPATH_INFO_SN |
915                         MPATH_INFO_METRIC |
916                         MPATH_INFO_EXPTIME |
917                         MPATH_INFO_DISCOVERY_TIMEOUT |
918                         MPATH_INFO_DISCOVERY_RETRIES |
919                         MPATH_INFO_FLAGS;
920
921         pinfo->frame_qlen = mpath->frame_queue.qlen;
922         pinfo->sn = mpath->sn;
923         pinfo->metric = mpath->metric;
924         if (time_before(jiffies, mpath->exp_time))
925                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
926         pinfo->discovery_timeout =
927                         jiffies_to_msecs(mpath->discovery_timeout);
928         pinfo->discovery_retries = mpath->discovery_retries;
929         pinfo->flags = 0;
930         if (mpath->flags & MESH_PATH_ACTIVE)
931                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
932         if (mpath->flags & MESH_PATH_RESOLVING)
933                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
934         if (mpath->flags & MESH_PATH_SN_VALID)
935                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
936         if (mpath->flags & MESH_PATH_FIXED)
937                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
938         if (mpath->flags & MESH_PATH_RESOLVING)
939                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
940
941         pinfo->flags = mpath->flags;
942 }
943
944 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
945                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
946
947 {
948         struct ieee80211_sub_if_data *sdata;
949         struct mesh_path *mpath;
950
951         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
952
953         rcu_read_lock();
954         mpath = mesh_path_lookup(dst, sdata);
955         if (!mpath) {
956                 rcu_read_unlock();
957                 return -ENOENT;
958         }
959         memcpy(dst, mpath->dst, ETH_ALEN);
960         mpath_set_pinfo(mpath, next_hop, pinfo);
961         rcu_read_unlock();
962         return 0;
963 }
964
965 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
966                                  int idx, u8 *dst, u8 *next_hop,
967                                  struct mpath_info *pinfo)
968 {
969         struct ieee80211_sub_if_data *sdata;
970         struct mesh_path *mpath;
971
972         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
973
974         rcu_read_lock();
975         mpath = mesh_path_lookup_by_idx(idx, sdata);
976         if (!mpath) {
977                 rcu_read_unlock();
978                 return -ENOENT;
979         }
980         memcpy(dst, mpath->dst, ETH_ALEN);
981         mpath_set_pinfo(mpath, next_hop, pinfo);
982         rcu_read_unlock();
983         return 0;
984 }
985
986 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
987                                 struct net_device *dev,
988                                 struct mesh_config *conf)
989 {
990         struct ieee80211_sub_if_data *sdata;
991         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
992
993         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
994         return 0;
995 }
996
997 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
998 {
999         return (mask >> (parm-1)) & 0x1;
1000 }
1001
1002 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1003                                 struct net_device *dev,
1004                                 const struct mesh_config *nconf, u32 mask)
1005 {
1006         struct mesh_config *conf;
1007         struct ieee80211_sub_if_data *sdata;
1008         struct ieee80211_if_mesh *ifmsh;
1009
1010         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1011         ifmsh = &sdata->u.mesh;
1012
1013         /* Set the config options which we are interested in setting */
1014         conf = &(sdata->u.mesh.mshcfg);
1015         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1016                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1017         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1018                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1019         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1020                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1021         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1022                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1023         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1024                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1025         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1026                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1027         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1028                 conf->auto_open_plinks = nconf->auto_open_plinks;
1029         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1030                 conf->dot11MeshHWMPmaxPREQretries =
1031                         nconf->dot11MeshHWMPmaxPREQretries;
1032         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1033                 conf->path_refresh_time = nconf->path_refresh_time;
1034         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1035                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1036         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1037                 conf->dot11MeshHWMPactivePathTimeout =
1038                         nconf->dot11MeshHWMPactivePathTimeout;
1039         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1040                 conf->dot11MeshHWMPpreqMinInterval =
1041                         nconf->dot11MeshHWMPpreqMinInterval;
1042         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1043                            mask))
1044                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1045                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1046         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1047                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1048                 ieee80211_mesh_root_setup(ifmsh);
1049         }
1050         return 0;
1051 }
1052
1053 #endif
1054
1055 static int ieee80211_change_bss(struct wiphy *wiphy,
1056                                 struct net_device *dev,
1057                                 struct bss_parameters *params)
1058 {
1059         struct ieee80211_sub_if_data *sdata;
1060         u32 changed = 0;
1061
1062         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1063
1064         if (params->use_cts_prot >= 0) {
1065                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1066                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1067         }
1068         if (params->use_short_preamble >= 0) {
1069                 sdata->vif.bss_conf.use_short_preamble =
1070                         params->use_short_preamble;
1071                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1072         }
1073
1074         if (!sdata->vif.bss_conf.use_short_slot &&
1075             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1076                 sdata->vif.bss_conf.use_short_slot = true;
1077                 changed |= BSS_CHANGED_ERP_SLOT;
1078         }
1079
1080         if (params->use_short_slot_time >= 0) {
1081                 sdata->vif.bss_conf.use_short_slot =
1082                         params->use_short_slot_time;
1083                 changed |= BSS_CHANGED_ERP_SLOT;
1084         }
1085
1086         if (params->basic_rates) {
1087                 int i, j;
1088                 u32 rates = 0;
1089                 struct ieee80211_local *local = wiphy_priv(wiphy);
1090                 struct ieee80211_supported_band *sband =
1091                         wiphy->bands[local->oper_channel->band];
1092
1093                 for (i = 0; i < params->basic_rates_len; i++) {
1094                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1095                         for (j = 0; j < sband->n_bitrates; j++) {
1096                                 if (sband->bitrates[j].bitrate == rate)
1097                                         rates |= BIT(j);
1098                         }
1099                 }
1100                 sdata->vif.bss_conf.basic_rates = rates;
1101                 changed |= BSS_CHANGED_BASIC_RATES;
1102         }
1103
1104         ieee80211_bss_info_change_notify(sdata, changed);
1105
1106         return 0;
1107 }
1108
1109 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1110                                     struct ieee80211_txq_params *params)
1111 {
1112         struct ieee80211_local *local = wiphy_priv(wiphy);
1113         struct ieee80211_tx_queue_params p;
1114
1115         if (!local->ops->conf_tx)
1116                 return -EOPNOTSUPP;
1117
1118         memset(&p, 0, sizeof(p));
1119         p.aifs = params->aifs;
1120         p.cw_max = params->cwmax;
1121         p.cw_min = params->cwmin;
1122         p.txop = params->txop;
1123
1124         /*
1125          * Setting tx queue params disables u-apsd because it's only
1126          * called in master mode.
1127          */
1128         p.uapsd = false;
1129
1130         if (drv_conf_tx(local, params->queue, &p)) {
1131                 printk(KERN_DEBUG "%s: failed to set TX queue "
1132                        "parameters for queue %d\n",
1133                        wiphy_name(local->hw.wiphy), params->queue);
1134                 return -EINVAL;
1135         }
1136
1137         return 0;
1138 }
1139
1140 static int ieee80211_set_channel(struct wiphy *wiphy,
1141                                  struct ieee80211_channel *chan,
1142                                  enum nl80211_channel_type channel_type)
1143 {
1144         struct ieee80211_local *local = wiphy_priv(wiphy);
1145
1146         local->oper_channel = chan;
1147         local->oper_channel_type = channel_type;
1148
1149         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1150 }
1151
1152 #ifdef CONFIG_PM
1153 static int ieee80211_suspend(struct wiphy *wiphy)
1154 {
1155         return __ieee80211_suspend(wiphy_priv(wiphy));
1156 }
1157
1158 static int ieee80211_resume(struct wiphy *wiphy)
1159 {
1160         return __ieee80211_resume(wiphy_priv(wiphy));
1161 }
1162 #else
1163 #define ieee80211_suspend NULL
1164 #define ieee80211_resume NULL
1165 #endif
1166
1167 static int ieee80211_scan(struct wiphy *wiphy,
1168                           struct net_device *dev,
1169                           struct cfg80211_scan_request *req)
1170 {
1171         struct ieee80211_sub_if_data *sdata;
1172
1173         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1174
1175         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1176             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1177             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1178             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1179                 return -EOPNOTSUPP;
1180
1181         return ieee80211_request_scan(sdata, req);
1182 }
1183
1184 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1185                           struct cfg80211_auth_request *req)
1186 {
1187         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1188 }
1189
1190 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1191                            struct cfg80211_assoc_request *req)
1192 {
1193         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1194 }
1195
1196 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1197                             struct cfg80211_deauth_request *req,
1198                             void *cookie)
1199 {
1200         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1201                                     req, cookie);
1202 }
1203
1204 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1205                               struct cfg80211_disassoc_request *req,
1206                               void *cookie)
1207 {
1208         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1209                                       req, cookie);
1210 }
1211
1212 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1213                                struct cfg80211_ibss_params *params)
1214 {
1215         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1216
1217         return ieee80211_ibss_join(sdata, params);
1218 }
1219
1220 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1221 {
1222         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1223
1224         return ieee80211_ibss_leave(sdata);
1225 }
1226
1227 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1228 {
1229         struct ieee80211_local *local = wiphy_priv(wiphy);
1230         int err;
1231
1232         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1233                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1234
1235                 if (err)
1236                         return err;
1237         }
1238
1239         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1240                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1241
1242                 if (err)
1243                         return err;
1244         }
1245
1246         if (changed & WIPHY_PARAM_RETRY_SHORT)
1247                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1248         if (changed & WIPHY_PARAM_RETRY_LONG)
1249                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1250         if (changed &
1251             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1252                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1253
1254         return 0;
1255 }
1256
1257 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1258                                   enum tx_power_setting type, int dbm)
1259 {
1260         struct ieee80211_local *local = wiphy_priv(wiphy);
1261         struct ieee80211_channel *chan = local->hw.conf.channel;
1262         u32 changes = 0;
1263
1264         switch (type) {
1265         case TX_POWER_AUTOMATIC:
1266                 local->user_power_level = -1;
1267                 break;
1268         case TX_POWER_LIMITED:
1269                 if (dbm < 0)
1270                         return -EINVAL;
1271                 local->user_power_level = dbm;
1272                 break;
1273         case TX_POWER_FIXED:
1274                 if (dbm < 0)
1275                         return -EINVAL;
1276                 /* TODO: move to cfg80211 when it knows the channel */
1277                 if (dbm > chan->max_power)
1278                         return -EINVAL;
1279                 local->user_power_level = dbm;
1280                 break;
1281         }
1282
1283         ieee80211_hw_config(local, changes);
1284
1285         return 0;
1286 }
1287
1288 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1289 {
1290         struct ieee80211_local *local = wiphy_priv(wiphy);
1291
1292         *dbm = local->hw.conf.power_level;
1293
1294         return 0;
1295 }
1296
1297 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1298                                   u8 *addr)
1299 {
1300         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1301
1302         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1303
1304         return 0;
1305 }
1306
1307 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1308 {
1309         struct ieee80211_local *local = wiphy_priv(wiphy);
1310
1311         drv_rfkill_poll(local);
1312 }
1313
1314 #ifdef CONFIG_NL80211_TESTMODE
1315 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1316 {
1317         struct ieee80211_local *local = wiphy_priv(wiphy);
1318
1319         if (!local->ops->testmode_cmd)
1320                 return -EOPNOTSUPP;
1321
1322         return local->ops->testmode_cmd(&local->hw, data, len);
1323 }
1324 #endif
1325
1326 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1327                              enum ieee80211_smps_mode smps_mode)
1328 {
1329         const u8 *ap;
1330         enum ieee80211_smps_mode old_req;
1331         int err;
1332
1333         old_req = sdata->u.mgd.req_smps;
1334         sdata->u.mgd.req_smps = smps_mode;
1335
1336         if (old_req == smps_mode &&
1337             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1338                 return 0;
1339
1340         /*
1341          * If not associated, or current association is not an HT
1342          * association, there's no need to send an action frame.
1343          */
1344         if (!sdata->u.mgd.associated ||
1345             sdata->local->oper_channel_type == NL80211_CHAN_NO_HT) {
1346                 mutex_lock(&sdata->local->iflist_mtx);
1347                 ieee80211_recalc_smps(sdata->local, sdata);
1348                 mutex_unlock(&sdata->local->iflist_mtx);
1349                 return 0;
1350         }
1351
1352         ap = sdata->u.mgd.associated->bssid;
1353
1354         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1355                 if (sdata->u.mgd.powersave)
1356                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1357                 else
1358                         smps_mode = IEEE80211_SMPS_OFF;
1359         }
1360
1361         /* send SM PS frame to AP */
1362         err = ieee80211_send_smps_action(sdata, smps_mode,
1363                                          ap, ap);
1364         if (err)
1365                 sdata->u.mgd.req_smps = old_req;
1366
1367         return err;
1368 }
1369
1370 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1371                                     bool enabled, int timeout)
1372 {
1373         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1374         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1375         struct ieee80211_conf *conf = &local->hw.conf;
1376
1377         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1378                 return -EOPNOTSUPP;
1379
1380         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1381                 return -EOPNOTSUPP;
1382
1383         if (enabled == sdata->u.mgd.powersave &&
1384             timeout == conf->dynamic_ps_timeout)
1385                 return 0;
1386
1387         sdata->u.mgd.powersave = enabled;
1388         conf->dynamic_ps_timeout = timeout;
1389
1390         /* no change, but if automatic follow powersave */
1391         mutex_lock(&sdata->u.mgd.mtx);
1392         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1393         mutex_unlock(&sdata->u.mgd.mtx);
1394
1395         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1396                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1397
1398         ieee80211_recalc_ps(local, -1);
1399
1400         return 0;
1401 }
1402
1403 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1404                                       struct net_device *dev,
1405                                       const u8 *addr,
1406                                       const struct cfg80211_bitrate_mask *mask)
1407 {
1408         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1409         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1410         int i;
1411
1412         /*
1413          * This _could_ be supported by providing a hook for
1414          * drivers for this function, but at this point it
1415          * doesn't seem worth bothering.
1416          */
1417         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1418                 return -EOPNOTSUPP;
1419
1420
1421         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1422                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1423
1424         return 0;
1425 }
1426
1427 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1428                                        struct net_device *dev,
1429                                        struct ieee80211_channel *chan,
1430                                        enum nl80211_channel_type channel_type,
1431                                        unsigned int duration,
1432                                        u64 *cookie)
1433 {
1434         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1435
1436         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1437                                               duration, cookie);
1438 }
1439
1440 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1441                                               struct net_device *dev,
1442                                               u64 cookie)
1443 {
1444         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1445
1446         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1447 }
1448
1449 struct cfg80211_ops mac80211_config_ops = {
1450         .add_virtual_intf = ieee80211_add_iface,
1451         .del_virtual_intf = ieee80211_del_iface,
1452         .change_virtual_intf = ieee80211_change_iface,
1453         .add_key = ieee80211_add_key,
1454         .del_key = ieee80211_del_key,
1455         .get_key = ieee80211_get_key,
1456         .set_default_key = ieee80211_config_default_key,
1457         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1458         .add_beacon = ieee80211_add_beacon,
1459         .set_beacon = ieee80211_set_beacon,
1460         .del_beacon = ieee80211_del_beacon,
1461         .add_station = ieee80211_add_station,
1462         .del_station = ieee80211_del_station,
1463         .change_station = ieee80211_change_station,
1464         .get_station = ieee80211_get_station,
1465         .dump_station = ieee80211_dump_station,
1466 #ifdef CONFIG_MAC80211_MESH
1467         .add_mpath = ieee80211_add_mpath,
1468         .del_mpath = ieee80211_del_mpath,
1469         .change_mpath = ieee80211_change_mpath,
1470         .get_mpath = ieee80211_get_mpath,
1471         .dump_mpath = ieee80211_dump_mpath,
1472         .set_mesh_params = ieee80211_set_mesh_params,
1473         .get_mesh_params = ieee80211_get_mesh_params,
1474 #endif
1475         .change_bss = ieee80211_change_bss,
1476         .set_txq_params = ieee80211_set_txq_params,
1477         .set_channel = ieee80211_set_channel,
1478         .suspend = ieee80211_suspend,
1479         .resume = ieee80211_resume,
1480         .scan = ieee80211_scan,
1481         .auth = ieee80211_auth,
1482         .assoc = ieee80211_assoc,
1483         .deauth = ieee80211_deauth,
1484         .disassoc = ieee80211_disassoc,
1485         .join_ibss = ieee80211_join_ibss,
1486         .leave_ibss = ieee80211_leave_ibss,
1487         .set_wiphy_params = ieee80211_set_wiphy_params,
1488         .set_tx_power = ieee80211_set_tx_power,
1489         .get_tx_power = ieee80211_get_tx_power,
1490         .set_wds_peer = ieee80211_set_wds_peer,
1491         .rfkill_poll = ieee80211_rfkill_poll,
1492         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1493         .set_power_mgmt = ieee80211_set_power_mgmt,
1494         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1495         .remain_on_channel = ieee80211_remain_on_channel,
1496         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1497 };