Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirel...
[linux-3.10.git] / net / mac80211 / cfg.c
1 /*
2  * mac80211 configuration hooks for cfg80211
3  *
4  * Copyright 2006-2010  Johannes Berg <johannes@sipsolutions.net>
5  *
6  * This file is GPLv2 as found in COPYING.
7  */
8
9 #include <linux/ieee80211.h>
10 #include <linux/nl80211.h>
11 #include <linux/rtnetlink.h>
12 #include <linux/slab.h>
13 #include <net/net_namespace.h>
14 #include <linux/rcupdate.h>
15 #include <net/cfg80211.h>
16 #include "ieee80211_i.h"
17 #include "driver-ops.h"
18 #include "cfg.h"
19 #include "rate.h"
20 #include "mesh.h"
21
22 static bool nl80211_type_check(enum nl80211_iftype type)
23 {
24         switch (type) {
25         case NL80211_IFTYPE_ADHOC:
26         case NL80211_IFTYPE_STATION:
27         case NL80211_IFTYPE_MONITOR:
28 #ifdef CONFIG_MAC80211_MESH
29         case NL80211_IFTYPE_MESH_POINT:
30 #endif
31         case NL80211_IFTYPE_AP:
32         case NL80211_IFTYPE_AP_VLAN:
33         case NL80211_IFTYPE_WDS:
34                 return true;
35         default:
36                 return false;
37         }
38 }
39
40 static bool nl80211_params_check(enum nl80211_iftype type,
41                                  struct vif_params *params)
42 {
43         if (!nl80211_type_check(type))
44                 return false;
45
46         return true;
47 }
48
49 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
50                                enum nl80211_iftype type, u32 *flags,
51                                struct vif_params *params)
52 {
53         struct ieee80211_local *local = wiphy_priv(wiphy);
54         struct net_device *dev;
55         struct ieee80211_sub_if_data *sdata;
56         int err;
57
58         if (!nl80211_params_check(type, params))
59                 return -EINVAL;
60
61         err = ieee80211_if_add(local, name, &dev, type, params);
62         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
63                 return err;
64
65         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66         sdata->u.mntr_flags = *flags;
67         return 0;
68 }
69
70 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
71 {
72         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
73
74         return 0;
75 }
76
77 static int ieee80211_change_iface(struct wiphy *wiphy,
78                                   struct net_device *dev,
79                                   enum nl80211_iftype type, u32 *flags,
80                                   struct vif_params *params)
81 {
82         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
83         int ret;
84
85         if (ieee80211_sdata_running(sdata))
86                 return -EBUSY;
87
88         if (!nl80211_params_check(type, params))
89                 return -EINVAL;
90
91         ret = ieee80211_if_change_type(sdata, type);
92         if (ret)
93                 return ret;
94
95         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
96                 ieee80211_sdata_set_mesh_id(sdata,
97                                             params->mesh_id_len,
98                                             params->mesh_id);
99
100         if (type == NL80211_IFTYPE_AP_VLAN &&
101             params && params->use_4addr == 0)
102                 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
103         else if (type == NL80211_IFTYPE_STATION &&
104                  params && params->use_4addr >= 0)
105                 sdata->u.mgd.use_4addr = params->use_4addr;
106
107         if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags)
108                 sdata->u.mntr_flags = *flags;
109
110         return 0;
111 }
112
113 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
114                              u8 key_idx, const u8 *mac_addr,
115                              struct key_params *params)
116 {
117         struct ieee80211_sub_if_data *sdata;
118         struct sta_info *sta = NULL;
119         enum ieee80211_key_alg alg;
120         struct ieee80211_key *key;
121         int err;
122
123         if (!netif_running(dev))
124                 return -ENETDOWN;
125
126         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
127
128         switch (params->cipher) {
129         case WLAN_CIPHER_SUITE_WEP40:
130         case WLAN_CIPHER_SUITE_WEP104:
131                 alg = ALG_WEP;
132                 break;
133         case WLAN_CIPHER_SUITE_TKIP:
134                 alg = ALG_TKIP;
135                 break;
136         case WLAN_CIPHER_SUITE_CCMP:
137                 alg = ALG_CCMP;
138                 break;
139         case WLAN_CIPHER_SUITE_AES_CMAC:
140                 alg = ALG_AES_CMAC;
141                 break;
142         default:
143                 return -EINVAL;
144         }
145
146         /* reject WEP and TKIP keys if WEP failed to initialize */
147         if ((alg == ALG_WEP || alg == ALG_TKIP) &&
148             IS_ERR(sdata->local->wep_tx_tfm))
149                 return -EINVAL;
150
151         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
152                                   params->seq_len, params->seq);
153         if (!key)
154                 return -ENOMEM;
155
156         mutex_lock(&sdata->local->sta_mtx);
157
158         if (mac_addr) {
159                 sta = sta_info_get_bss(sdata, mac_addr);
160                 if (!sta) {
161                         ieee80211_key_free(key);
162                         err = -ENOENT;
163                         goto out_unlock;
164                 }
165         }
166
167         ieee80211_key_link(key, sdata, sta);
168
169         err = 0;
170  out_unlock:
171         mutex_unlock(&sdata->local->sta_mtx);
172
173         return err;
174 }
175
176 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
177                              u8 key_idx, const u8 *mac_addr)
178 {
179         struct ieee80211_sub_if_data *sdata;
180         struct sta_info *sta;
181         int ret;
182
183         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
184
185         mutex_lock(&sdata->local->sta_mtx);
186
187         if (mac_addr) {
188                 ret = -ENOENT;
189
190                 sta = sta_info_get_bss(sdata, mac_addr);
191                 if (!sta)
192                         goto out_unlock;
193
194                 if (sta->key) {
195                         ieee80211_key_free(sta->key);
196                         WARN_ON(sta->key);
197                         ret = 0;
198                 }
199
200                 goto out_unlock;
201         }
202
203         if (!sdata->keys[key_idx]) {
204                 ret = -ENOENT;
205                 goto out_unlock;
206         }
207
208         ieee80211_key_free(sdata->keys[key_idx]);
209         WARN_ON(sdata->keys[key_idx]);
210
211         ret = 0;
212  out_unlock:
213         mutex_unlock(&sdata->local->sta_mtx);
214
215         return ret;
216 }
217
218 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
219                              u8 key_idx, const u8 *mac_addr, void *cookie,
220                              void (*callback)(void *cookie,
221                                               struct key_params *params))
222 {
223         struct ieee80211_sub_if_data *sdata;
224         struct sta_info *sta = NULL;
225         u8 seq[6] = {0};
226         struct key_params params;
227         struct ieee80211_key *key;
228         u32 iv32;
229         u16 iv16;
230         int err = -ENOENT;
231
232         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
233
234         rcu_read_lock();
235
236         if (mac_addr) {
237                 sta = sta_info_get_bss(sdata, mac_addr);
238                 if (!sta)
239                         goto out;
240
241                 key = sta->key;
242         } else
243                 key = sdata->keys[key_idx];
244
245         if (!key)
246                 goto out;
247
248         memset(&params, 0, sizeof(params));
249
250         switch (key->conf.alg) {
251         case ALG_TKIP:
252                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
253
254                 iv32 = key->u.tkip.tx.iv32;
255                 iv16 = key->u.tkip.tx.iv16;
256
257                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
258                         drv_get_tkip_seq(sdata->local,
259                                          key->conf.hw_key_idx,
260                                          &iv32, &iv16);
261
262                 seq[0] = iv16 & 0xff;
263                 seq[1] = (iv16 >> 8) & 0xff;
264                 seq[2] = iv32 & 0xff;
265                 seq[3] = (iv32 >> 8) & 0xff;
266                 seq[4] = (iv32 >> 16) & 0xff;
267                 seq[5] = (iv32 >> 24) & 0xff;
268                 params.seq = seq;
269                 params.seq_len = 6;
270                 break;
271         case ALG_CCMP:
272                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
273                 seq[0] = key->u.ccmp.tx_pn[5];
274                 seq[1] = key->u.ccmp.tx_pn[4];
275                 seq[2] = key->u.ccmp.tx_pn[3];
276                 seq[3] = key->u.ccmp.tx_pn[2];
277                 seq[4] = key->u.ccmp.tx_pn[1];
278                 seq[5] = key->u.ccmp.tx_pn[0];
279                 params.seq = seq;
280                 params.seq_len = 6;
281                 break;
282         case ALG_WEP:
283                 if (key->conf.keylen == 5)
284                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
285                 else
286                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
287                 break;
288         case ALG_AES_CMAC:
289                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
290                 seq[0] = key->u.aes_cmac.tx_pn[5];
291                 seq[1] = key->u.aes_cmac.tx_pn[4];
292                 seq[2] = key->u.aes_cmac.tx_pn[3];
293                 seq[3] = key->u.aes_cmac.tx_pn[2];
294                 seq[4] = key->u.aes_cmac.tx_pn[1];
295                 seq[5] = key->u.aes_cmac.tx_pn[0];
296                 params.seq = seq;
297                 params.seq_len = 6;
298                 break;
299         }
300
301         params.key = key->conf.key;
302         params.key_len = key->conf.keylen;
303
304         callback(cookie, &params);
305         err = 0;
306
307  out:
308         rcu_read_unlock();
309         return err;
310 }
311
312 static int ieee80211_config_default_key(struct wiphy *wiphy,
313                                         struct net_device *dev,
314                                         u8 key_idx)
315 {
316         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
317
318         ieee80211_set_default_key(sdata, key_idx);
319
320         return 0;
321 }
322
323 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
324                                              struct net_device *dev,
325                                              u8 key_idx)
326 {
327         struct ieee80211_sub_if_data *sdata;
328
329         rcu_read_lock();
330
331         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
332         ieee80211_set_default_mgmt_key(sdata, key_idx);
333
334         rcu_read_unlock();
335
336         return 0;
337 }
338
339 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
340 {
341         struct ieee80211_sub_if_data *sdata = sta->sdata;
342
343         sinfo->generation = sdata->local->sta_generation;
344
345         sinfo->filled = STATION_INFO_INACTIVE_TIME |
346                         STATION_INFO_RX_BYTES |
347                         STATION_INFO_TX_BYTES |
348                         STATION_INFO_RX_PACKETS |
349                         STATION_INFO_TX_PACKETS |
350                         STATION_INFO_TX_BITRATE;
351
352         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
353         sinfo->rx_bytes = sta->rx_bytes;
354         sinfo->tx_bytes = sta->tx_bytes;
355         sinfo->rx_packets = sta->rx_packets;
356         sinfo->tx_packets = sta->tx_packets;
357
358         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
359             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
360                 sinfo->filled |= STATION_INFO_SIGNAL;
361                 sinfo->signal = (s8)sta->last_signal;
362         }
363
364         sinfo->txrate.flags = 0;
365         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
366                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
367         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
368                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
369         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
370                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
371
372         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
373                 struct ieee80211_supported_band *sband;
374                 sband = sta->local->hw.wiphy->bands[
375                                 sta->local->hw.conf.channel->band];
376                 sinfo->txrate.legacy =
377                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
378         } else
379                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
380
381         if (ieee80211_vif_is_mesh(&sdata->vif)) {
382 #ifdef CONFIG_MAC80211_MESH
383                 sinfo->filled |= STATION_INFO_LLID |
384                                  STATION_INFO_PLID |
385                                  STATION_INFO_PLINK_STATE;
386
387                 sinfo->llid = le16_to_cpu(sta->llid);
388                 sinfo->plid = le16_to_cpu(sta->plid);
389                 sinfo->plink_state = sta->plink_state;
390 #endif
391         }
392 }
393
394
395 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
396                                  int idx, u8 *mac, struct station_info *sinfo)
397 {
398         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
399         struct sta_info *sta;
400         int ret = -ENOENT;
401
402         rcu_read_lock();
403
404         sta = sta_info_get_by_idx(sdata, idx);
405         if (sta) {
406                 ret = 0;
407                 memcpy(mac, sta->sta.addr, ETH_ALEN);
408                 sta_set_sinfo(sta, sinfo);
409         }
410
411         rcu_read_unlock();
412
413         return ret;
414 }
415
416 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
417                                  int idx, struct survey_info *survey)
418 {
419         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
420
421         return drv_get_survey(local, idx, survey);
422 }
423
424 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
425                                  u8 *mac, struct station_info *sinfo)
426 {
427         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
428         struct sta_info *sta;
429         int ret = -ENOENT;
430
431         rcu_read_lock();
432
433         sta = sta_info_get_bss(sdata, mac);
434         if (sta) {
435                 ret = 0;
436                 sta_set_sinfo(sta, sinfo);
437         }
438
439         rcu_read_unlock();
440
441         return ret;
442 }
443
444 /*
445  * This handles both adding a beacon and setting new beacon info
446  */
447 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
448                                    struct beacon_parameters *params)
449 {
450         struct beacon_data *new, *old;
451         int new_head_len, new_tail_len;
452         int size;
453         int err = -EINVAL;
454
455         old = sdata->u.ap.beacon;
456
457         /* head must not be zero-length */
458         if (params->head && !params->head_len)
459                 return -EINVAL;
460
461         /*
462          * This is a kludge. beacon interval should really be part
463          * of the beacon information.
464          */
465         if (params->interval &&
466             (sdata->vif.bss_conf.beacon_int != params->interval)) {
467                 sdata->vif.bss_conf.beacon_int = params->interval;
468                 ieee80211_bss_info_change_notify(sdata,
469                                                  BSS_CHANGED_BEACON_INT);
470         }
471
472         /* Need to have a beacon head if we don't have one yet */
473         if (!params->head && !old)
474                 return err;
475
476         /* sorry, no way to start beaconing without dtim period */
477         if (!params->dtim_period && !old)
478                 return err;
479
480         /* new or old head? */
481         if (params->head)
482                 new_head_len = params->head_len;
483         else
484                 new_head_len = old->head_len;
485
486         /* new or old tail? */
487         if (params->tail || !old)
488                 /* params->tail_len will be zero for !params->tail */
489                 new_tail_len = params->tail_len;
490         else
491                 new_tail_len = old->tail_len;
492
493         size = sizeof(*new) + new_head_len + new_tail_len;
494
495         new = kzalloc(size, GFP_KERNEL);
496         if (!new)
497                 return -ENOMEM;
498
499         /* start filling the new info now */
500
501         /* new or old dtim period? */
502         if (params->dtim_period)
503                 new->dtim_period = params->dtim_period;
504         else
505                 new->dtim_period = old->dtim_period;
506
507         /*
508          * pointers go into the block we allocated,
509          * memory is | beacon_data | head | tail |
510          */
511         new->head = ((u8 *) new) + sizeof(*new);
512         new->tail = new->head + new_head_len;
513         new->head_len = new_head_len;
514         new->tail_len = new_tail_len;
515
516         /* copy in head */
517         if (params->head)
518                 memcpy(new->head, params->head, new_head_len);
519         else
520                 memcpy(new->head, old->head, new_head_len);
521
522         /* copy in optional tail */
523         if (params->tail)
524                 memcpy(new->tail, params->tail, new_tail_len);
525         else
526                 if (old)
527                         memcpy(new->tail, old->tail, new_tail_len);
528
529         sdata->vif.bss_conf.dtim_period = new->dtim_period;
530
531         rcu_assign_pointer(sdata->u.ap.beacon, new);
532
533         synchronize_rcu();
534
535         kfree(old);
536
537         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
538                                                 BSS_CHANGED_BEACON);
539         return 0;
540 }
541
542 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
543                                 struct beacon_parameters *params)
544 {
545         struct ieee80211_sub_if_data *sdata;
546         struct beacon_data *old;
547
548         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
549
550         old = sdata->u.ap.beacon;
551
552         if (old)
553                 return -EALREADY;
554
555         return ieee80211_config_beacon(sdata, params);
556 }
557
558 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
559                                 struct beacon_parameters *params)
560 {
561         struct ieee80211_sub_if_data *sdata;
562         struct beacon_data *old;
563
564         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
565
566         old = sdata->u.ap.beacon;
567
568         if (!old)
569                 return -ENOENT;
570
571         return ieee80211_config_beacon(sdata, params);
572 }
573
574 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
575 {
576         struct ieee80211_sub_if_data *sdata;
577         struct beacon_data *old;
578
579         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
580
581         old = sdata->u.ap.beacon;
582
583         if (!old)
584                 return -ENOENT;
585
586         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
587         synchronize_rcu();
588         kfree(old);
589
590         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
591         return 0;
592 }
593
594 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
595 struct iapp_layer2_update {
596         u8 da[ETH_ALEN];        /* broadcast */
597         u8 sa[ETH_ALEN];        /* STA addr */
598         __be16 len;             /* 6 */
599         u8 dsap;                /* 0 */
600         u8 ssap;                /* 0 */
601         u8 control;
602         u8 xid_info[3];
603 } __packed;
604
605 static void ieee80211_send_layer2_update(struct sta_info *sta)
606 {
607         struct iapp_layer2_update *msg;
608         struct sk_buff *skb;
609
610         /* Send Level 2 Update Frame to update forwarding tables in layer 2
611          * bridge devices */
612
613         skb = dev_alloc_skb(sizeof(*msg));
614         if (!skb)
615                 return;
616         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
617
618         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
619          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
620
621         memset(msg->da, 0xff, ETH_ALEN);
622         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
623         msg->len = htons(6);
624         msg->dsap = 0;
625         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
626         msg->control = 0xaf;    /* XID response lsb.1111F101.
627                                  * F=0 (no poll command; unsolicited frame) */
628         msg->xid_info[0] = 0x81;        /* XID format identifier */
629         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
630         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
631
632         skb->dev = sta->sdata->dev;
633         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
634         memset(skb->cb, 0, sizeof(skb->cb));
635         netif_rx(skb);
636 }
637
638 static void sta_apply_parameters(struct ieee80211_local *local,
639                                  struct sta_info *sta,
640                                  struct station_parameters *params)
641 {
642         u32 rates;
643         int i, j;
644         struct ieee80211_supported_band *sband;
645         struct ieee80211_sub_if_data *sdata = sta->sdata;
646         u32 mask, set;
647
648         sband = local->hw.wiphy->bands[local->oper_channel->band];
649
650         spin_lock_bh(&sta->lock);
651         mask = params->sta_flags_mask;
652         set = params->sta_flags_set;
653
654         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
655                 sta->flags &= ~WLAN_STA_AUTHORIZED;
656                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
657                         sta->flags |= WLAN_STA_AUTHORIZED;
658         }
659
660         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
661                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
662                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
663                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
664         }
665
666         if (mask & BIT(NL80211_STA_FLAG_WME)) {
667                 sta->flags &= ~WLAN_STA_WME;
668                 if (set & BIT(NL80211_STA_FLAG_WME))
669                         sta->flags |= WLAN_STA_WME;
670         }
671
672         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
673                 sta->flags &= ~WLAN_STA_MFP;
674                 if (set & BIT(NL80211_STA_FLAG_MFP))
675                         sta->flags |= WLAN_STA_MFP;
676         }
677         spin_unlock_bh(&sta->lock);
678
679         /*
680          * cfg80211 validates this (1-2007) and allows setting the AID
681          * only when creating a new station entry
682          */
683         if (params->aid)
684                 sta->sta.aid = params->aid;
685
686         /*
687          * FIXME: updating the following information is racy when this
688          *        function is called from ieee80211_change_station().
689          *        However, all this information should be static so
690          *        maybe we should just reject attemps to change it.
691          */
692
693         if (params->listen_interval >= 0)
694                 sta->listen_interval = params->listen_interval;
695
696         if (params->supported_rates) {
697                 rates = 0;
698
699                 for (i = 0; i < params->supported_rates_len; i++) {
700                         int rate = (params->supported_rates[i] & 0x7f) * 5;
701                         for (j = 0; j < sband->n_bitrates; j++) {
702                                 if (sband->bitrates[j].bitrate == rate)
703                                         rates |= BIT(j);
704                         }
705                 }
706                 sta->sta.supp_rates[local->oper_channel->band] = rates;
707         }
708
709         if (params->ht_capa)
710                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
711                                                   params->ht_capa,
712                                                   &sta->sta.ht_cap);
713
714         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
715                 switch (params->plink_action) {
716                 case PLINK_ACTION_OPEN:
717                         mesh_plink_open(sta);
718                         break;
719                 case PLINK_ACTION_BLOCK:
720                         mesh_plink_block(sta);
721                         break;
722                 }
723         }
724 }
725
726 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
727                                  u8 *mac, struct station_parameters *params)
728 {
729         struct ieee80211_local *local = wiphy_priv(wiphy);
730         struct sta_info *sta;
731         struct ieee80211_sub_if_data *sdata;
732         int err;
733         int layer2_update;
734
735         if (params->vlan) {
736                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
737
738                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
739                     sdata->vif.type != NL80211_IFTYPE_AP)
740                         return -EINVAL;
741         } else
742                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
743
744         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
745                 return -EINVAL;
746
747         if (is_multicast_ether_addr(mac))
748                 return -EINVAL;
749
750         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
751         if (!sta)
752                 return -ENOMEM;
753
754         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
755
756         sta_apply_parameters(local, sta, params);
757
758         rate_control_rate_init(sta);
759
760         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
761                 sdata->vif.type == NL80211_IFTYPE_AP;
762
763         err = sta_info_insert_rcu(sta);
764         if (err) {
765                 rcu_read_unlock();
766                 return err;
767         }
768
769         if (layer2_update)
770                 ieee80211_send_layer2_update(sta);
771
772         rcu_read_unlock();
773
774         return 0;
775 }
776
777 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
778                                  u8 *mac)
779 {
780         struct ieee80211_local *local = wiphy_priv(wiphy);
781         struct ieee80211_sub_if_data *sdata;
782
783         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
784
785         if (mac)
786                 return sta_info_destroy_addr_bss(sdata, mac);
787
788         sta_info_flush(local, sdata);
789         return 0;
790 }
791
792 static int ieee80211_change_station(struct wiphy *wiphy,
793                                     struct net_device *dev,
794                                     u8 *mac,
795                                     struct station_parameters *params)
796 {
797         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
798         struct ieee80211_local *local = wiphy_priv(wiphy);
799         struct sta_info *sta;
800         struct ieee80211_sub_if_data *vlansdata;
801
802         rcu_read_lock();
803
804         sta = sta_info_get_bss(sdata, mac);
805         if (!sta) {
806                 rcu_read_unlock();
807                 return -ENOENT;
808         }
809
810         if (params->vlan && params->vlan != sta->sdata->dev) {
811                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
812
813                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
814                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
815                         rcu_read_unlock();
816                         return -EINVAL;
817                 }
818
819                 if (params->vlan->ieee80211_ptr->use_4addr) {
820                         if (vlansdata->u.vlan.sta) {
821                                 rcu_read_unlock();
822                                 return -EBUSY;
823                         }
824
825                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
826                 }
827
828                 sta->sdata = vlansdata;
829                 ieee80211_send_layer2_update(sta);
830         }
831
832         sta_apply_parameters(local, sta, params);
833
834         rcu_read_unlock();
835
836         return 0;
837 }
838
839 #ifdef CONFIG_MAC80211_MESH
840 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
841                                  u8 *dst, u8 *next_hop)
842 {
843         struct ieee80211_sub_if_data *sdata;
844         struct mesh_path *mpath;
845         struct sta_info *sta;
846         int err;
847
848         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
849
850         rcu_read_lock();
851         sta = sta_info_get(sdata, next_hop);
852         if (!sta) {
853                 rcu_read_unlock();
854                 return -ENOENT;
855         }
856
857         err = mesh_path_add(dst, sdata);
858         if (err) {
859                 rcu_read_unlock();
860                 return err;
861         }
862
863         mpath = mesh_path_lookup(dst, sdata);
864         if (!mpath) {
865                 rcu_read_unlock();
866                 return -ENXIO;
867         }
868         mesh_path_fix_nexthop(mpath, sta);
869
870         rcu_read_unlock();
871         return 0;
872 }
873
874 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
875                                  u8 *dst)
876 {
877         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
878
879         if (dst)
880                 return mesh_path_del(dst, sdata);
881
882         mesh_path_flush(sdata);
883         return 0;
884 }
885
886 static int ieee80211_change_mpath(struct wiphy *wiphy,
887                                     struct net_device *dev,
888                                     u8 *dst, u8 *next_hop)
889 {
890         struct ieee80211_sub_if_data *sdata;
891         struct mesh_path *mpath;
892         struct sta_info *sta;
893
894         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
895
896         rcu_read_lock();
897
898         sta = sta_info_get(sdata, next_hop);
899         if (!sta) {
900                 rcu_read_unlock();
901                 return -ENOENT;
902         }
903
904         mpath = mesh_path_lookup(dst, sdata);
905         if (!mpath) {
906                 rcu_read_unlock();
907                 return -ENOENT;
908         }
909
910         mesh_path_fix_nexthop(mpath, sta);
911
912         rcu_read_unlock();
913         return 0;
914 }
915
916 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
917                             struct mpath_info *pinfo)
918 {
919         if (mpath->next_hop)
920                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
921         else
922                 memset(next_hop, 0, ETH_ALEN);
923
924         pinfo->generation = mesh_paths_generation;
925
926         pinfo->filled = MPATH_INFO_FRAME_QLEN |
927                         MPATH_INFO_SN |
928                         MPATH_INFO_METRIC |
929                         MPATH_INFO_EXPTIME |
930                         MPATH_INFO_DISCOVERY_TIMEOUT |
931                         MPATH_INFO_DISCOVERY_RETRIES |
932                         MPATH_INFO_FLAGS;
933
934         pinfo->frame_qlen = mpath->frame_queue.qlen;
935         pinfo->sn = mpath->sn;
936         pinfo->metric = mpath->metric;
937         if (time_before(jiffies, mpath->exp_time))
938                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
939         pinfo->discovery_timeout =
940                         jiffies_to_msecs(mpath->discovery_timeout);
941         pinfo->discovery_retries = mpath->discovery_retries;
942         pinfo->flags = 0;
943         if (mpath->flags & MESH_PATH_ACTIVE)
944                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
945         if (mpath->flags & MESH_PATH_RESOLVING)
946                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
947         if (mpath->flags & MESH_PATH_SN_VALID)
948                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
949         if (mpath->flags & MESH_PATH_FIXED)
950                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
951         if (mpath->flags & MESH_PATH_RESOLVING)
952                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
953
954         pinfo->flags = mpath->flags;
955 }
956
957 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
958                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
959
960 {
961         struct ieee80211_sub_if_data *sdata;
962         struct mesh_path *mpath;
963
964         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
965
966         rcu_read_lock();
967         mpath = mesh_path_lookup(dst, sdata);
968         if (!mpath) {
969                 rcu_read_unlock();
970                 return -ENOENT;
971         }
972         memcpy(dst, mpath->dst, ETH_ALEN);
973         mpath_set_pinfo(mpath, next_hop, pinfo);
974         rcu_read_unlock();
975         return 0;
976 }
977
978 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
979                                  int idx, u8 *dst, u8 *next_hop,
980                                  struct mpath_info *pinfo)
981 {
982         struct ieee80211_sub_if_data *sdata;
983         struct mesh_path *mpath;
984
985         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
986
987         rcu_read_lock();
988         mpath = mesh_path_lookup_by_idx(idx, sdata);
989         if (!mpath) {
990                 rcu_read_unlock();
991                 return -ENOENT;
992         }
993         memcpy(dst, mpath->dst, ETH_ALEN);
994         mpath_set_pinfo(mpath, next_hop, pinfo);
995         rcu_read_unlock();
996         return 0;
997 }
998
999 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1000                                 struct net_device *dev,
1001                                 struct mesh_config *conf)
1002 {
1003         struct ieee80211_sub_if_data *sdata;
1004         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1005
1006         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1007         return 0;
1008 }
1009
1010 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1011 {
1012         return (mask >> (parm-1)) & 0x1;
1013 }
1014
1015 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1016                                 struct net_device *dev,
1017                                 const struct mesh_config *nconf, u32 mask)
1018 {
1019         struct mesh_config *conf;
1020         struct ieee80211_sub_if_data *sdata;
1021         struct ieee80211_if_mesh *ifmsh;
1022
1023         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1024         ifmsh = &sdata->u.mesh;
1025
1026         /* Set the config options which we are interested in setting */
1027         conf = &(sdata->u.mesh.mshcfg);
1028         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1029                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1030         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1031                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1032         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1033                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1034         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1035                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1036         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1037                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1038         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1039                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1040         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1041                 conf->auto_open_plinks = nconf->auto_open_plinks;
1042         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1043                 conf->dot11MeshHWMPmaxPREQretries =
1044                         nconf->dot11MeshHWMPmaxPREQretries;
1045         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1046                 conf->path_refresh_time = nconf->path_refresh_time;
1047         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1048                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1049         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1050                 conf->dot11MeshHWMPactivePathTimeout =
1051                         nconf->dot11MeshHWMPactivePathTimeout;
1052         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1053                 conf->dot11MeshHWMPpreqMinInterval =
1054                         nconf->dot11MeshHWMPpreqMinInterval;
1055         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1056                            mask))
1057                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1058                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1059         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1060                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1061                 ieee80211_mesh_root_setup(ifmsh);
1062         }
1063         return 0;
1064 }
1065
1066 #endif
1067
1068 static int ieee80211_change_bss(struct wiphy *wiphy,
1069                                 struct net_device *dev,
1070                                 struct bss_parameters *params)
1071 {
1072         struct ieee80211_sub_if_data *sdata;
1073         u32 changed = 0;
1074
1075         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1076
1077         if (params->use_cts_prot >= 0) {
1078                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1079                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1080         }
1081         if (params->use_short_preamble >= 0) {
1082                 sdata->vif.bss_conf.use_short_preamble =
1083                         params->use_short_preamble;
1084                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1085         }
1086
1087         if (!sdata->vif.bss_conf.use_short_slot &&
1088             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1089                 sdata->vif.bss_conf.use_short_slot = true;
1090                 changed |= BSS_CHANGED_ERP_SLOT;
1091         }
1092
1093         if (params->use_short_slot_time >= 0) {
1094                 sdata->vif.bss_conf.use_short_slot =
1095                         params->use_short_slot_time;
1096                 changed |= BSS_CHANGED_ERP_SLOT;
1097         }
1098
1099         if (params->basic_rates) {
1100                 int i, j;
1101                 u32 rates = 0;
1102                 struct ieee80211_local *local = wiphy_priv(wiphy);
1103                 struct ieee80211_supported_band *sband =
1104                         wiphy->bands[local->oper_channel->band];
1105
1106                 for (i = 0; i < params->basic_rates_len; i++) {
1107                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1108                         for (j = 0; j < sband->n_bitrates; j++) {
1109                                 if (sband->bitrates[j].bitrate == rate)
1110                                         rates |= BIT(j);
1111                         }
1112                 }
1113                 sdata->vif.bss_conf.basic_rates = rates;
1114                 changed |= BSS_CHANGED_BASIC_RATES;
1115         }
1116
1117         if (params->ap_isolate >= 0) {
1118                 if (params->ap_isolate)
1119                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1120                 else
1121                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1122         }
1123
1124         ieee80211_bss_info_change_notify(sdata, changed);
1125
1126         return 0;
1127 }
1128
1129 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1130                                     struct ieee80211_txq_params *params)
1131 {
1132         struct ieee80211_local *local = wiphy_priv(wiphy);
1133         struct ieee80211_tx_queue_params p;
1134
1135         if (!local->ops->conf_tx)
1136                 return -EOPNOTSUPP;
1137
1138         memset(&p, 0, sizeof(p));
1139         p.aifs = params->aifs;
1140         p.cw_max = params->cwmax;
1141         p.cw_min = params->cwmin;
1142         p.txop = params->txop;
1143
1144         /*
1145          * Setting tx queue params disables u-apsd because it's only
1146          * called in master mode.
1147          */
1148         p.uapsd = false;
1149
1150         if (drv_conf_tx(local, params->queue, &p)) {
1151                 printk(KERN_DEBUG "%s: failed to set TX queue "
1152                        "parameters for queue %d\n",
1153                        wiphy_name(local->hw.wiphy), params->queue);
1154                 return -EINVAL;
1155         }
1156
1157         return 0;
1158 }
1159
1160 static int ieee80211_set_channel(struct wiphy *wiphy,
1161                                  struct net_device *netdev,
1162                                  struct ieee80211_channel *chan,
1163                                  enum nl80211_channel_type channel_type)
1164 {
1165         struct ieee80211_local *local = wiphy_priv(wiphy);
1166         struct ieee80211_sub_if_data *sdata = NULL;
1167
1168         if (netdev)
1169                 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1170
1171         switch (ieee80211_get_channel_mode(local, NULL)) {
1172         case CHAN_MODE_HOPPING:
1173                 return -EBUSY;
1174         case CHAN_MODE_FIXED:
1175                 if (local->oper_channel != chan)
1176                         return -EBUSY;
1177                 if (!sdata && local->_oper_channel_type == channel_type)
1178                         return 0;
1179                 break;
1180         case CHAN_MODE_UNDEFINED:
1181                 break;
1182         }
1183
1184         local->oper_channel = chan;
1185
1186         if (!ieee80211_set_channel_type(local, sdata, channel_type))
1187                 return -EBUSY;
1188
1189         ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1190         if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1191                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1192
1193         return 0;
1194 }
1195
1196 #ifdef CONFIG_PM
1197 static int ieee80211_suspend(struct wiphy *wiphy)
1198 {
1199         return __ieee80211_suspend(wiphy_priv(wiphy));
1200 }
1201
1202 static int ieee80211_resume(struct wiphy *wiphy)
1203 {
1204         return __ieee80211_resume(wiphy_priv(wiphy));
1205 }
1206 #else
1207 #define ieee80211_suspend NULL
1208 #define ieee80211_resume NULL
1209 #endif
1210
1211 static int ieee80211_scan(struct wiphy *wiphy,
1212                           struct net_device *dev,
1213                           struct cfg80211_scan_request *req)
1214 {
1215         struct ieee80211_sub_if_data *sdata;
1216
1217         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1218
1219         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1220             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1221             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1222             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1223                 return -EOPNOTSUPP;
1224
1225         return ieee80211_request_scan(sdata, req);
1226 }
1227
1228 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1229                           struct cfg80211_auth_request *req)
1230 {
1231         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1232 }
1233
1234 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1235                            struct cfg80211_assoc_request *req)
1236 {
1237         struct ieee80211_local *local = wiphy_priv(wiphy);
1238         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1239
1240         switch (ieee80211_get_channel_mode(local, sdata)) {
1241         case CHAN_MODE_HOPPING:
1242                 return -EBUSY;
1243         case CHAN_MODE_FIXED:
1244                 if (local->oper_channel == req->bss->channel)
1245                         break;
1246                 return -EBUSY;
1247         case CHAN_MODE_UNDEFINED:
1248                 break;
1249         }
1250
1251         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1252 }
1253
1254 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1255                             struct cfg80211_deauth_request *req,
1256                             void *cookie)
1257 {
1258         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1259                                     req, cookie);
1260 }
1261
1262 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1263                               struct cfg80211_disassoc_request *req,
1264                               void *cookie)
1265 {
1266         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1267                                       req, cookie);
1268 }
1269
1270 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1271                                struct cfg80211_ibss_params *params)
1272 {
1273         struct ieee80211_local *local = wiphy_priv(wiphy);
1274         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1275
1276         switch (ieee80211_get_channel_mode(local, sdata)) {
1277         case CHAN_MODE_HOPPING:
1278                 return -EBUSY;
1279         case CHAN_MODE_FIXED:
1280                 if (!params->channel_fixed)
1281                         return -EBUSY;
1282                 if (local->oper_channel == params->channel)
1283                         break;
1284                 return -EBUSY;
1285         case CHAN_MODE_UNDEFINED:
1286                 break;
1287         }
1288
1289         return ieee80211_ibss_join(sdata, params);
1290 }
1291
1292 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1293 {
1294         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1295
1296         return ieee80211_ibss_leave(sdata);
1297 }
1298
1299 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1300 {
1301         struct ieee80211_local *local = wiphy_priv(wiphy);
1302         int err;
1303
1304         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1305                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1306
1307                 if (err)
1308                         return err;
1309         }
1310
1311         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1312                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1313
1314                 if (err)
1315                         return err;
1316         }
1317
1318         if (changed & WIPHY_PARAM_RETRY_SHORT)
1319                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1320         if (changed & WIPHY_PARAM_RETRY_LONG)
1321                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1322         if (changed &
1323             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1324                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1325
1326         return 0;
1327 }
1328
1329 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1330                                   enum nl80211_tx_power_setting type, int mbm)
1331 {
1332         struct ieee80211_local *local = wiphy_priv(wiphy);
1333         struct ieee80211_channel *chan = local->hw.conf.channel;
1334         u32 changes = 0;
1335
1336         switch (type) {
1337         case NL80211_TX_POWER_AUTOMATIC:
1338                 local->user_power_level = -1;
1339                 break;
1340         case NL80211_TX_POWER_LIMITED:
1341                 if (mbm < 0 || (mbm % 100))
1342                         return -EOPNOTSUPP;
1343                 local->user_power_level = MBM_TO_DBM(mbm);
1344                 break;
1345         case NL80211_TX_POWER_FIXED:
1346                 if (mbm < 0 || (mbm % 100))
1347                         return -EOPNOTSUPP;
1348                 /* TODO: move to cfg80211 when it knows the channel */
1349                 if (MBM_TO_DBM(mbm) > chan->max_power)
1350                         return -EINVAL;
1351                 local->user_power_level = MBM_TO_DBM(mbm);
1352                 break;
1353         }
1354
1355         ieee80211_hw_config(local, changes);
1356
1357         return 0;
1358 }
1359
1360 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1361 {
1362         struct ieee80211_local *local = wiphy_priv(wiphy);
1363
1364         *dbm = local->hw.conf.power_level;
1365
1366         return 0;
1367 }
1368
1369 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1370                                   u8 *addr)
1371 {
1372         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1373
1374         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1375
1376         return 0;
1377 }
1378
1379 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1380 {
1381         struct ieee80211_local *local = wiphy_priv(wiphy);
1382
1383         drv_rfkill_poll(local);
1384 }
1385
1386 #ifdef CONFIG_NL80211_TESTMODE
1387 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1388 {
1389         struct ieee80211_local *local = wiphy_priv(wiphy);
1390
1391         if (!local->ops->testmode_cmd)
1392                 return -EOPNOTSUPP;
1393
1394         return local->ops->testmode_cmd(&local->hw, data, len);
1395 }
1396 #endif
1397
1398 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1399                              enum ieee80211_smps_mode smps_mode)
1400 {
1401         const u8 *ap;
1402         enum ieee80211_smps_mode old_req;
1403         int err;
1404
1405         old_req = sdata->u.mgd.req_smps;
1406         sdata->u.mgd.req_smps = smps_mode;
1407
1408         if (old_req == smps_mode &&
1409             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1410                 return 0;
1411
1412         /*
1413          * If not associated, or current association is not an HT
1414          * association, there's no need to send an action frame.
1415          */
1416         if (!sdata->u.mgd.associated ||
1417             sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1418                 mutex_lock(&sdata->local->iflist_mtx);
1419                 ieee80211_recalc_smps(sdata->local, sdata);
1420                 mutex_unlock(&sdata->local->iflist_mtx);
1421                 return 0;
1422         }
1423
1424         ap = sdata->u.mgd.associated->bssid;
1425
1426         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1427                 if (sdata->u.mgd.powersave)
1428                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1429                 else
1430                         smps_mode = IEEE80211_SMPS_OFF;
1431         }
1432
1433         /* send SM PS frame to AP */
1434         err = ieee80211_send_smps_action(sdata, smps_mode,
1435                                          ap, ap);
1436         if (err)
1437                 sdata->u.mgd.req_smps = old_req;
1438
1439         return err;
1440 }
1441
1442 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1443                                     bool enabled, int timeout)
1444 {
1445         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1446         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1447
1448         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1449                 return -EOPNOTSUPP;
1450
1451         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1452                 return -EOPNOTSUPP;
1453
1454         if (enabled == sdata->u.mgd.powersave &&
1455             timeout == local->dynamic_ps_forced_timeout)
1456                 return 0;
1457
1458         sdata->u.mgd.powersave = enabled;
1459         local->dynamic_ps_forced_timeout = timeout;
1460
1461         /* no change, but if automatic follow powersave */
1462         mutex_lock(&sdata->u.mgd.mtx);
1463         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1464         mutex_unlock(&sdata->u.mgd.mtx);
1465
1466         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1467                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1468
1469         ieee80211_recalc_ps(local, -1);
1470
1471         return 0;
1472 }
1473
1474 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1475                                          struct net_device *dev,
1476                                          s32 rssi_thold, u32 rssi_hyst)
1477 {
1478         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1479         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1480         struct ieee80211_vif *vif = &sdata->vif;
1481         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1482
1483         if (rssi_thold == bss_conf->cqm_rssi_thold &&
1484             rssi_hyst == bss_conf->cqm_rssi_hyst)
1485                 return 0;
1486
1487         bss_conf->cqm_rssi_thold = rssi_thold;
1488         bss_conf->cqm_rssi_hyst = rssi_hyst;
1489
1490         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1491                 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1492                         return -EOPNOTSUPP;
1493                 return 0;
1494         }
1495
1496         /* tell the driver upon association, unless already associated */
1497         if (sdata->u.mgd.associated)
1498                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1499
1500         return 0;
1501 }
1502
1503 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1504                                       struct net_device *dev,
1505                                       const u8 *addr,
1506                                       const struct cfg80211_bitrate_mask *mask)
1507 {
1508         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1509         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1510         int i;
1511
1512         /*
1513          * This _could_ be supported by providing a hook for
1514          * drivers for this function, but at this point it
1515          * doesn't seem worth bothering.
1516          */
1517         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1518                 return -EOPNOTSUPP;
1519
1520
1521         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1522                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1523
1524         return 0;
1525 }
1526
1527 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1528                                        struct net_device *dev,
1529                                        struct ieee80211_channel *chan,
1530                                        enum nl80211_channel_type channel_type,
1531                                        unsigned int duration,
1532                                        u64 *cookie)
1533 {
1534         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1535
1536         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1537                                               duration, cookie);
1538 }
1539
1540 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1541                                               struct net_device *dev,
1542                                               u64 cookie)
1543 {
1544         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1545
1546         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1547 }
1548
1549 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1550                             struct ieee80211_channel *chan,
1551                             enum nl80211_channel_type channel_type,
1552                             bool channel_type_valid,
1553                             const u8 *buf, size_t len, u64 *cookie)
1554 {
1555         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1556         struct ieee80211_local *local = sdata->local;
1557         struct sk_buff *skb;
1558         struct sta_info *sta;
1559         const struct ieee80211_mgmt *mgmt = (void *)buf;
1560         u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1561                     IEEE80211_TX_CTL_REQ_TX_STATUS;
1562
1563         /* Check that we are on the requested channel for transmission */
1564         if (chan != local->tmp_channel &&
1565             chan != local->oper_channel)
1566                 return -EBUSY;
1567         if (channel_type_valid &&
1568             (channel_type != local->tmp_channel_type &&
1569              channel_type != local->_oper_channel_type))
1570                 return -EBUSY;
1571
1572         switch (sdata->vif.type) {
1573         case NL80211_IFTYPE_ADHOC:
1574                 if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1575                         break;
1576                 rcu_read_lock();
1577                 sta = sta_info_get(sdata, mgmt->da);
1578                 rcu_read_unlock();
1579                 if (!sta)
1580                         return -ENOLINK;
1581                 break;
1582         case NL80211_IFTYPE_STATION:
1583                 if (!(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED))
1584                         flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
1585                 break;
1586         default:
1587                 return -EOPNOTSUPP;
1588         }
1589
1590         skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1591         if (!skb)
1592                 return -ENOMEM;
1593         skb_reserve(skb, local->hw.extra_tx_headroom);
1594
1595         memcpy(skb_put(skb, len), buf, len);
1596
1597         IEEE80211_SKB_CB(skb)->flags = flags;
1598
1599         skb->dev = sdata->dev;
1600         ieee80211_tx_skb(sdata, skb);
1601
1602         *cookie = (unsigned long) skb;
1603         return 0;
1604 }
1605
1606 struct cfg80211_ops mac80211_config_ops = {
1607         .add_virtual_intf = ieee80211_add_iface,
1608         .del_virtual_intf = ieee80211_del_iface,
1609         .change_virtual_intf = ieee80211_change_iface,
1610         .add_key = ieee80211_add_key,
1611         .del_key = ieee80211_del_key,
1612         .get_key = ieee80211_get_key,
1613         .set_default_key = ieee80211_config_default_key,
1614         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1615         .add_beacon = ieee80211_add_beacon,
1616         .set_beacon = ieee80211_set_beacon,
1617         .del_beacon = ieee80211_del_beacon,
1618         .add_station = ieee80211_add_station,
1619         .del_station = ieee80211_del_station,
1620         .change_station = ieee80211_change_station,
1621         .get_station = ieee80211_get_station,
1622         .dump_station = ieee80211_dump_station,
1623         .dump_survey = ieee80211_dump_survey,
1624 #ifdef CONFIG_MAC80211_MESH
1625         .add_mpath = ieee80211_add_mpath,
1626         .del_mpath = ieee80211_del_mpath,
1627         .change_mpath = ieee80211_change_mpath,
1628         .get_mpath = ieee80211_get_mpath,
1629         .dump_mpath = ieee80211_dump_mpath,
1630         .set_mesh_params = ieee80211_set_mesh_params,
1631         .get_mesh_params = ieee80211_get_mesh_params,
1632 #endif
1633         .change_bss = ieee80211_change_bss,
1634         .set_txq_params = ieee80211_set_txq_params,
1635         .set_channel = ieee80211_set_channel,
1636         .suspend = ieee80211_suspend,
1637         .resume = ieee80211_resume,
1638         .scan = ieee80211_scan,
1639         .auth = ieee80211_auth,
1640         .assoc = ieee80211_assoc,
1641         .deauth = ieee80211_deauth,
1642         .disassoc = ieee80211_disassoc,
1643         .join_ibss = ieee80211_join_ibss,
1644         .leave_ibss = ieee80211_leave_ibss,
1645         .set_wiphy_params = ieee80211_set_wiphy_params,
1646         .set_tx_power = ieee80211_set_tx_power,
1647         .get_tx_power = ieee80211_get_tx_power,
1648         .set_wds_peer = ieee80211_set_wds_peer,
1649         .rfkill_poll = ieee80211_rfkill_poll,
1650         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1651         .set_power_mgmt = ieee80211_set_power_mgmt,
1652         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1653         .remain_on_channel = ieee80211_remain_on_channel,
1654         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1655         .action = ieee80211_action,
1656         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1657 };