mac80211: check interface is down before type change
[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 int ieee80211_add_iface(struct wiphy *wiphy, char *name,
40                                enum nl80211_iftype type, u32 *flags,
41                                struct vif_params *params)
42 {
43         struct ieee80211_local *local = wiphy_priv(wiphy);
44         struct net_device *dev;
45         struct ieee80211_sub_if_data *sdata;
46         int err;
47
48         if (!nl80211_type_check(type))
49                 return -EINVAL;
50
51         err = ieee80211_if_add(local, name, &dev, type, params);
52         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
53                 return err;
54
55         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
56         sdata->u.mntr_flags = *flags;
57         return 0;
58 }
59
60 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
61 {
62         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
63
64         return 0;
65 }
66
67 static int ieee80211_change_iface(struct wiphy *wiphy,
68                                   struct net_device *dev,
69                                   enum nl80211_iftype type, u32 *flags,
70                                   struct vif_params *params)
71 {
72         struct ieee80211_sub_if_data *sdata;
73         int ret;
74
75         if (netif_running(dev))
76                 return -EBUSY;
77
78         if (!nl80211_type_check(type))
79                 return -EINVAL;
80
81         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
82
83         ret = ieee80211_if_change_type(sdata, type);
84         if (ret)
85                 return ret;
86
87         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
88                 ieee80211_sdata_set_mesh_id(sdata,
89                                             params->mesh_id_len,
90                                             params->mesh_id);
91
92         if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
93                 return 0;
94
95         sdata->u.mntr_flags = *flags;
96         return 0;
97 }
98
99 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
100                              u8 key_idx, const u8 *mac_addr,
101                              struct key_params *params)
102 {
103         struct ieee80211_sub_if_data *sdata;
104         struct sta_info *sta = NULL;
105         enum ieee80211_key_alg alg;
106         struct ieee80211_key *key;
107         int err;
108
109         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
110
111         switch (params->cipher) {
112         case WLAN_CIPHER_SUITE_WEP40:
113         case WLAN_CIPHER_SUITE_WEP104:
114                 alg = ALG_WEP;
115                 break;
116         case WLAN_CIPHER_SUITE_TKIP:
117                 alg = ALG_TKIP;
118                 break;
119         case WLAN_CIPHER_SUITE_CCMP:
120                 alg = ALG_CCMP;
121                 break;
122         case WLAN_CIPHER_SUITE_AES_CMAC:
123                 alg = ALG_AES_CMAC;
124                 break;
125         default:
126                 return -EINVAL;
127         }
128
129         key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
130                                   params->seq_len, params->seq);
131         if (!key)
132                 return -ENOMEM;
133
134         rcu_read_lock();
135
136         if (mac_addr) {
137                 sta = sta_info_get(sdata->local, mac_addr);
138                 if (!sta) {
139                         ieee80211_key_free(key);
140                         err = -ENOENT;
141                         goto out_unlock;
142                 }
143         }
144
145         ieee80211_key_link(key, sdata, sta);
146
147         err = 0;
148  out_unlock:
149         rcu_read_unlock();
150
151         return err;
152 }
153
154 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
155                              u8 key_idx, const u8 *mac_addr)
156 {
157         struct ieee80211_sub_if_data *sdata;
158         struct sta_info *sta;
159         int ret;
160
161         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
162
163         rcu_read_lock();
164
165         if (mac_addr) {
166                 ret = -ENOENT;
167
168                 sta = sta_info_get(sdata->local, mac_addr);
169                 if (!sta)
170                         goto out_unlock;
171
172                 if (sta->key) {
173                         ieee80211_key_free(sta->key);
174                         WARN_ON(sta->key);
175                         ret = 0;
176                 }
177
178                 goto out_unlock;
179         }
180
181         if (!sdata->keys[key_idx]) {
182                 ret = -ENOENT;
183                 goto out_unlock;
184         }
185
186         ieee80211_key_free(sdata->keys[key_idx]);
187         WARN_ON(sdata->keys[key_idx]);
188
189         ret = 0;
190  out_unlock:
191         rcu_read_unlock();
192
193         return ret;
194 }
195
196 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
197                              u8 key_idx, const u8 *mac_addr, void *cookie,
198                              void (*callback)(void *cookie,
199                                               struct key_params *params))
200 {
201         struct ieee80211_sub_if_data *sdata;
202         struct sta_info *sta = NULL;
203         u8 seq[6] = {0};
204         struct key_params params;
205         struct ieee80211_key *key;
206         u32 iv32;
207         u16 iv16;
208         int err = -ENOENT;
209
210         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
211
212         rcu_read_lock();
213
214         if (mac_addr) {
215                 sta = sta_info_get(sdata->local, mac_addr);
216                 if (!sta)
217                         goto out;
218
219                 key = sta->key;
220         } else
221                 key = sdata->keys[key_idx];
222
223         if (!key)
224                 goto out;
225
226         memset(&params, 0, sizeof(params));
227
228         switch (key->conf.alg) {
229         case ALG_TKIP:
230                 params.cipher = WLAN_CIPHER_SUITE_TKIP;
231
232                 iv32 = key->u.tkip.tx.iv32;
233                 iv16 = key->u.tkip.tx.iv16;
234
235                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
236                         drv_get_tkip_seq(sdata->local,
237                                          key->conf.hw_key_idx,
238                                          &iv32, &iv16);
239
240                 seq[0] = iv16 & 0xff;
241                 seq[1] = (iv16 >> 8) & 0xff;
242                 seq[2] = iv32 & 0xff;
243                 seq[3] = (iv32 >> 8) & 0xff;
244                 seq[4] = (iv32 >> 16) & 0xff;
245                 seq[5] = (iv32 >> 24) & 0xff;
246                 params.seq = seq;
247                 params.seq_len = 6;
248                 break;
249         case ALG_CCMP:
250                 params.cipher = WLAN_CIPHER_SUITE_CCMP;
251                 seq[0] = key->u.ccmp.tx_pn[5];
252                 seq[1] = key->u.ccmp.tx_pn[4];
253                 seq[2] = key->u.ccmp.tx_pn[3];
254                 seq[3] = key->u.ccmp.tx_pn[2];
255                 seq[4] = key->u.ccmp.tx_pn[1];
256                 seq[5] = key->u.ccmp.tx_pn[0];
257                 params.seq = seq;
258                 params.seq_len = 6;
259                 break;
260         case ALG_WEP:
261                 if (key->conf.keylen == 5)
262                         params.cipher = WLAN_CIPHER_SUITE_WEP40;
263                 else
264                         params.cipher = WLAN_CIPHER_SUITE_WEP104;
265                 break;
266         case ALG_AES_CMAC:
267                 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
268                 seq[0] = key->u.aes_cmac.tx_pn[5];
269                 seq[1] = key->u.aes_cmac.tx_pn[4];
270                 seq[2] = key->u.aes_cmac.tx_pn[3];
271                 seq[3] = key->u.aes_cmac.tx_pn[2];
272                 seq[4] = key->u.aes_cmac.tx_pn[1];
273                 seq[5] = key->u.aes_cmac.tx_pn[0];
274                 params.seq = seq;
275                 params.seq_len = 6;
276                 break;
277         }
278
279         params.key = key->conf.key;
280         params.key_len = key->conf.keylen;
281
282         callback(cookie, &params);
283         err = 0;
284
285  out:
286         rcu_read_unlock();
287         return err;
288 }
289
290 static int ieee80211_config_default_key(struct wiphy *wiphy,
291                                         struct net_device *dev,
292                                         u8 key_idx)
293 {
294         struct ieee80211_sub_if_data *sdata;
295
296         rcu_read_lock();
297
298         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
299         ieee80211_set_default_key(sdata, key_idx);
300
301         rcu_read_unlock();
302
303         return 0;
304 }
305
306 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
307                                              struct net_device *dev,
308                                              u8 key_idx)
309 {
310         struct ieee80211_sub_if_data *sdata;
311
312         rcu_read_lock();
313
314         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
315         ieee80211_set_default_mgmt_key(sdata, key_idx);
316
317         rcu_read_unlock();
318
319         return 0;
320 }
321
322 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
323 {
324         struct ieee80211_sub_if_data *sdata = sta->sdata;
325
326         sinfo->generation = sdata->local->sta_generation;
327
328         sinfo->filled = STATION_INFO_INACTIVE_TIME |
329                         STATION_INFO_RX_BYTES |
330                         STATION_INFO_TX_BYTES |
331                         STATION_INFO_RX_PACKETS |
332                         STATION_INFO_TX_PACKETS |
333                         STATION_INFO_TX_BITRATE;
334
335         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
336         sinfo->rx_bytes = sta->rx_bytes;
337         sinfo->tx_bytes = sta->tx_bytes;
338         sinfo->rx_packets = sta->rx_packets;
339         sinfo->tx_packets = sta->tx_packets;
340
341         if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
342                 sinfo->filled |= STATION_INFO_SIGNAL;
343                 sinfo->signal = (s8)sta->last_signal;
344         }
345
346         sinfo->txrate.flags = 0;
347         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
348                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
349         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
350                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
351         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
352                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
353
354         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
355                 struct ieee80211_supported_band *sband;
356                 sband = sta->local->hw.wiphy->bands[
357                                 sta->local->hw.conf.channel->band];
358                 sinfo->txrate.legacy =
359                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
360         } else
361                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
362
363         if (ieee80211_vif_is_mesh(&sdata->vif)) {
364 #ifdef CONFIG_MAC80211_MESH
365                 sinfo->filled |= STATION_INFO_LLID |
366                                  STATION_INFO_PLID |
367                                  STATION_INFO_PLINK_STATE;
368
369                 sinfo->llid = le16_to_cpu(sta->llid);
370                 sinfo->plid = le16_to_cpu(sta->plid);
371                 sinfo->plink_state = sta->plink_state;
372 #endif
373         }
374 }
375
376
377 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
378                                  int idx, u8 *mac, struct station_info *sinfo)
379 {
380         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
381         struct sta_info *sta;
382         int ret = -ENOENT;
383
384         rcu_read_lock();
385
386         sta = sta_info_get_by_idx(local, idx, dev);
387         if (sta) {
388                 ret = 0;
389                 memcpy(mac, sta->sta.addr, ETH_ALEN);
390                 sta_set_sinfo(sta, sinfo);
391         }
392
393         rcu_read_unlock();
394
395         return ret;
396 }
397
398 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
399                                  u8 *mac, struct station_info *sinfo)
400 {
401         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
402         struct sta_info *sta;
403         int ret = -ENOENT;
404
405         rcu_read_lock();
406
407         /* XXX: verify sta->dev == dev */
408
409         sta = sta_info_get(local, mac);
410         if (sta) {
411                 ret = 0;
412                 sta_set_sinfo(sta, sinfo);
413         }
414
415         rcu_read_unlock();
416
417         return ret;
418 }
419
420 /*
421  * This handles both adding a beacon and setting new beacon info
422  */
423 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
424                                    struct beacon_parameters *params)
425 {
426         struct beacon_data *new, *old;
427         int new_head_len, new_tail_len;
428         int size;
429         int err = -EINVAL;
430
431         old = sdata->u.ap.beacon;
432
433         /* head must not be zero-length */
434         if (params->head && !params->head_len)
435                 return -EINVAL;
436
437         /*
438          * This is a kludge. beacon interval should really be part
439          * of the beacon information.
440          */
441         if (params->interval &&
442             (sdata->vif.bss_conf.beacon_int != params->interval)) {
443                 sdata->vif.bss_conf.beacon_int = params->interval;
444                 ieee80211_bss_info_change_notify(sdata,
445                                                  BSS_CHANGED_BEACON_INT);
446         }
447
448         /* Need to have a beacon head if we don't have one yet */
449         if (!params->head && !old)
450                 return err;
451
452         /* sorry, no way to start beaconing without dtim period */
453         if (!params->dtim_period && !old)
454                 return err;
455
456         /* new or old head? */
457         if (params->head)
458                 new_head_len = params->head_len;
459         else
460                 new_head_len = old->head_len;
461
462         /* new or old tail? */
463         if (params->tail || !old)
464                 /* params->tail_len will be zero for !params->tail */
465                 new_tail_len = params->tail_len;
466         else
467                 new_tail_len = old->tail_len;
468
469         size = sizeof(*new) + new_head_len + new_tail_len;
470
471         new = kzalloc(size, GFP_KERNEL);
472         if (!new)
473                 return -ENOMEM;
474
475         /* start filling the new info now */
476
477         /* new or old dtim period? */
478         if (params->dtim_period)
479                 new->dtim_period = params->dtim_period;
480         else
481                 new->dtim_period = old->dtim_period;
482
483         /*
484          * pointers go into the block we allocated,
485          * memory is | beacon_data | head | tail |
486          */
487         new->head = ((u8 *) new) + sizeof(*new);
488         new->tail = new->head + new_head_len;
489         new->head_len = new_head_len;
490         new->tail_len = new_tail_len;
491
492         /* copy in head */
493         if (params->head)
494                 memcpy(new->head, params->head, new_head_len);
495         else
496                 memcpy(new->head, old->head, new_head_len);
497
498         /* copy in optional tail */
499         if (params->tail)
500                 memcpy(new->tail, params->tail, new_tail_len);
501         else
502                 if (old)
503                         memcpy(new->tail, old->tail, new_tail_len);
504
505         rcu_assign_pointer(sdata->u.ap.beacon, new);
506
507         synchronize_rcu();
508
509         kfree(old);
510
511         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
512                                                 BSS_CHANGED_BEACON);
513         return 0;
514 }
515
516 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
517                                 struct beacon_parameters *params)
518 {
519         struct ieee80211_sub_if_data *sdata;
520         struct beacon_data *old;
521
522         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
523
524         old = sdata->u.ap.beacon;
525
526         if (old)
527                 return -EALREADY;
528
529         return ieee80211_config_beacon(sdata, params);
530 }
531
532 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
533                                 struct beacon_parameters *params)
534 {
535         struct ieee80211_sub_if_data *sdata;
536         struct beacon_data *old;
537
538         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
539
540         old = sdata->u.ap.beacon;
541
542         if (!old)
543                 return -ENOENT;
544
545         return ieee80211_config_beacon(sdata, params);
546 }
547
548 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
549 {
550         struct ieee80211_sub_if_data *sdata;
551         struct beacon_data *old;
552
553         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
554
555         old = sdata->u.ap.beacon;
556
557         if (!old)
558                 return -ENOENT;
559
560         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
561         synchronize_rcu();
562         kfree(old);
563
564         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
565         return 0;
566 }
567
568 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
569 struct iapp_layer2_update {
570         u8 da[ETH_ALEN];        /* broadcast */
571         u8 sa[ETH_ALEN];        /* STA addr */
572         __be16 len;             /* 6 */
573         u8 dsap;                /* 0 */
574         u8 ssap;                /* 0 */
575         u8 control;
576         u8 xid_info[3];
577 } __attribute__ ((packed));
578
579 static void ieee80211_send_layer2_update(struct sta_info *sta)
580 {
581         struct iapp_layer2_update *msg;
582         struct sk_buff *skb;
583
584         /* Send Level 2 Update Frame to update forwarding tables in layer 2
585          * bridge devices */
586
587         skb = dev_alloc_skb(sizeof(*msg));
588         if (!skb)
589                 return;
590         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
591
592         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
593          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
594
595         memset(msg->da, 0xff, ETH_ALEN);
596         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
597         msg->len = htons(6);
598         msg->dsap = 0;
599         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
600         msg->control = 0xaf;    /* XID response lsb.1111F101.
601                                  * F=0 (no poll command; unsolicited frame) */
602         msg->xid_info[0] = 0x81;        /* XID format identifier */
603         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
604         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
605
606         skb->dev = sta->sdata->dev;
607         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
608         memset(skb->cb, 0, sizeof(skb->cb));
609         netif_rx(skb);
610 }
611
612 static void sta_apply_parameters(struct ieee80211_local *local,
613                                  struct sta_info *sta,
614                                  struct station_parameters *params)
615 {
616         u32 rates;
617         int i, j;
618         struct ieee80211_supported_band *sband;
619         struct ieee80211_sub_if_data *sdata = sta->sdata;
620         u32 mask, set;
621
622         sband = local->hw.wiphy->bands[local->oper_channel->band];
623
624         spin_lock_bh(&sta->lock);
625         mask = params->sta_flags_mask;
626         set = params->sta_flags_set;
627
628         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
629                 sta->flags &= ~WLAN_STA_AUTHORIZED;
630                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
631                         sta->flags |= WLAN_STA_AUTHORIZED;
632         }
633
634         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
635                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
636                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
637                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
638         }
639
640         if (mask & BIT(NL80211_STA_FLAG_WME)) {
641                 sta->flags &= ~WLAN_STA_WME;
642                 if (set & BIT(NL80211_STA_FLAG_WME))
643                         sta->flags |= WLAN_STA_WME;
644         }
645
646         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
647                 sta->flags &= ~WLAN_STA_MFP;
648                 if (set & BIT(NL80211_STA_FLAG_MFP))
649                         sta->flags |= WLAN_STA_MFP;
650         }
651         spin_unlock_bh(&sta->lock);
652
653         /*
654          * cfg80211 validates this (1-2007) and allows setting the AID
655          * only when creating a new station entry
656          */
657         if (params->aid)
658                 sta->sta.aid = params->aid;
659
660         /*
661          * FIXME: updating the following information is racy when this
662          *        function is called from ieee80211_change_station().
663          *        However, all this information should be static so
664          *        maybe we should just reject attemps to change it.
665          */
666
667         if (params->listen_interval >= 0)
668                 sta->listen_interval = params->listen_interval;
669
670         if (params->supported_rates) {
671                 rates = 0;
672
673                 for (i = 0; i < params->supported_rates_len; i++) {
674                         int rate = (params->supported_rates[i] & 0x7f) * 5;
675                         for (j = 0; j < sband->n_bitrates; j++) {
676                                 if (sband->bitrates[j].bitrate == rate)
677                                         rates |= BIT(j);
678                         }
679                 }
680                 sta->sta.supp_rates[local->oper_channel->band] = rates;
681         }
682
683         if (params->ht_capa)
684                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
685                                                   params->ht_capa,
686                                                   &sta->sta.ht_cap);
687
688         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
689                 switch (params->plink_action) {
690                 case PLINK_ACTION_OPEN:
691                         mesh_plink_open(sta);
692                         break;
693                 case PLINK_ACTION_BLOCK:
694                         mesh_plink_block(sta);
695                         break;
696                 }
697         }
698 }
699
700 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
701                                  u8 *mac, struct station_parameters *params)
702 {
703         struct ieee80211_local *local = wiphy_priv(wiphy);
704         struct sta_info *sta;
705         struct ieee80211_sub_if_data *sdata;
706         int err;
707         int layer2_update;
708
709         if (params->vlan) {
710                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
711
712                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
713                     sdata->vif.type != NL80211_IFTYPE_AP)
714                         return -EINVAL;
715         } else
716                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
717
718         if (compare_ether_addr(mac, dev->dev_addr) == 0)
719                 return -EINVAL;
720
721         if (is_multicast_ether_addr(mac))
722                 return -EINVAL;
723
724         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
725         if (!sta)
726                 return -ENOMEM;
727
728         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
729
730         sta_apply_parameters(local, sta, params);
731
732         rate_control_rate_init(sta);
733
734         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
735                 sdata->vif.type == NL80211_IFTYPE_AP;
736
737         rcu_read_lock();
738
739         err = sta_info_insert(sta);
740         if (err) {
741                 /* STA has been freed */
742                 if (err == -EEXIST && layer2_update) {
743                         /* Need to update layer 2 devices on reassociation */
744                         sta = sta_info_get(local, mac);
745                         if (sta)
746                                 ieee80211_send_layer2_update(sta);
747                 }
748                 rcu_read_unlock();
749                 return err;
750         }
751
752         if (layer2_update)
753                 ieee80211_send_layer2_update(sta);
754
755         rcu_read_unlock();
756
757         return 0;
758 }
759
760 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
761                                  u8 *mac)
762 {
763         struct ieee80211_local *local = wiphy_priv(wiphy);
764         struct ieee80211_sub_if_data *sdata;
765         struct sta_info *sta;
766
767         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
768
769         if (mac) {
770                 rcu_read_lock();
771
772                 /* XXX: get sta belonging to dev */
773                 sta = sta_info_get(local, mac);
774                 if (!sta) {
775                         rcu_read_unlock();
776                         return -ENOENT;
777                 }
778
779                 sta_info_unlink(&sta);
780                 rcu_read_unlock();
781
782                 sta_info_destroy(sta);
783         } else
784                 sta_info_flush(local, sdata);
785
786         return 0;
787 }
788
789 static int ieee80211_change_station(struct wiphy *wiphy,
790                                     struct net_device *dev,
791                                     u8 *mac,
792                                     struct station_parameters *params)
793 {
794         struct ieee80211_local *local = wiphy_priv(wiphy);
795         struct sta_info *sta;
796         struct ieee80211_sub_if_data *vlansdata;
797
798         rcu_read_lock();
799
800         /* XXX: get sta belonging to dev */
801         sta = sta_info_get(local, mac);
802         if (!sta) {
803                 rcu_read_unlock();
804                 return -ENOENT;
805         }
806
807         if (params->vlan && params->vlan != sta->sdata->dev) {
808                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
809
810                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
811                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
812                         rcu_read_unlock();
813                         return -EINVAL;
814                 }
815
816                 sta->sdata = vlansdata;
817                 ieee80211_send_layer2_update(sta);
818         }
819
820         sta_apply_parameters(local, sta, params);
821
822         rcu_read_unlock();
823
824         return 0;
825 }
826
827 #ifdef CONFIG_MAC80211_MESH
828 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
829                                  u8 *dst, u8 *next_hop)
830 {
831         struct ieee80211_local *local = wiphy_priv(wiphy);
832         struct ieee80211_sub_if_data *sdata;
833         struct mesh_path *mpath;
834         struct sta_info *sta;
835         int err;
836
837         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
838
839         rcu_read_lock();
840         sta = sta_info_get(local, next_hop);
841         if (!sta) {
842                 rcu_read_unlock();
843                 return -ENOENT;
844         }
845
846         err = mesh_path_add(dst, sdata);
847         if (err) {
848                 rcu_read_unlock();
849                 return err;
850         }
851
852         mpath = mesh_path_lookup(dst, sdata);
853         if (!mpath) {
854                 rcu_read_unlock();
855                 return -ENXIO;
856         }
857         mesh_path_fix_nexthop(mpath, sta);
858
859         rcu_read_unlock();
860         return 0;
861 }
862
863 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
864                                  u8 *dst)
865 {
866         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
867
868         if (dst)
869                 return mesh_path_del(dst, sdata);
870
871         mesh_path_flush(sdata);
872         return 0;
873 }
874
875 static int ieee80211_change_mpath(struct wiphy *wiphy,
876                                     struct net_device *dev,
877                                     u8 *dst, u8 *next_hop)
878 {
879         struct ieee80211_local *local = wiphy_priv(wiphy);
880         struct ieee80211_sub_if_data *sdata;
881         struct mesh_path *mpath;
882         struct sta_info *sta;
883
884         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
885
886         rcu_read_lock();
887
888         sta = sta_info_get(local, next_hop);
889         if (!sta) {
890                 rcu_read_unlock();
891                 return -ENOENT;
892         }
893
894         mpath = mesh_path_lookup(dst, sdata);
895         if (!mpath) {
896                 rcu_read_unlock();
897                 return -ENOENT;
898         }
899
900         mesh_path_fix_nexthop(mpath, sta);
901
902         rcu_read_unlock();
903         return 0;
904 }
905
906 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
907                             struct mpath_info *pinfo)
908 {
909         if (mpath->next_hop)
910                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
911         else
912                 memset(next_hop, 0, ETH_ALEN);
913
914         pinfo->generation = mesh_paths_generation;
915
916         pinfo->filled = MPATH_INFO_FRAME_QLEN |
917                         MPATH_INFO_DSN |
918                         MPATH_INFO_METRIC |
919                         MPATH_INFO_EXPTIME |
920                         MPATH_INFO_DISCOVERY_TIMEOUT |
921                         MPATH_INFO_DISCOVERY_RETRIES |
922                         MPATH_INFO_FLAGS;
923
924         pinfo->frame_qlen = mpath->frame_queue.qlen;
925         pinfo->dsn = mpath->dsn;
926         pinfo->metric = mpath->metric;
927         if (time_before(jiffies, mpath->exp_time))
928                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
929         pinfo->discovery_timeout =
930                         jiffies_to_msecs(mpath->discovery_timeout);
931         pinfo->discovery_retries = mpath->discovery_retries;
932         pinfo->flags = 0;
933         if (mpath->flags & MESH_PATH_ACTIVE)
934                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
935         if (mpath->flags & MESH_PATH_RESOLVING)
936                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
937         if (mpath->flags & MESH_PATH_DSN_VALID)
938                 pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID;
939         if (mpath->flags & MESH_PATH_FIXED)
940                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
941         if (mpath->flags & MESH_PATH_RESOLVING)
942                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
943
944         pinfo->flags = mpath->flags;
945 }
946
947 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
948                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
949
950 {
951         struct ieee80211_sub_if_data *sdata;
952         struct mesh_path *mpath;
953
954         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
955
956         rcu_read_lock();
957         mpath = mesh_path_lookup(dst, sdata);
958         if (!mpath) {
959                 rcu_read_unlock();
960                 return -ENOENT;
961         }
962         memcpy(dst, mpath->dst, ETH_ALEN);
963         mpath_set_pinfo(mpath, next_hop, pinfo);
964         rcu_read_unlock();
965         return 0;
966 }
967
968 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
969                                  int idx, u8 *dst, u8 *next_hop,
970                                  struct mpath_info *pinfo)
971 {
972         struct ieee80211_sub_if_data *sdata;
973         struct mesh_path *mpath;
974
975         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
976
977         rcu_read_lock();
978         mpath = mesh_path_lookup_by_idx(idx, sdata);
979         if (!mpath) {
980                 rcu_read_unlock();
981                 return -ENOENT;
982         }
983         memcpy(dst, mpath->dst, ETH_ALEN);
984         mpath_set_pinfo(mpath, next_hop, pinfo);
985         rcu_read_unlock();
986         return 0;
987 }
988
989 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
990                                 struct net_device *dev,
991                                 struct mesh_config *conf)
992 {
993         struct ieee80211_sub_if_data *sdata;
994         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
995
996         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
997         return 0;
998 }
999
1000 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1001 {
1002         return (mask >> (parm-1)) & 0x1;
1003 }
1004
1005 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1006                                 struct net_device *dev,
1007                                 const struct mesh_config *nconf, u32 mask)
1008 {
1009         struct mesh_config *conf;
1010         struct ieee80211_sub_if_data *sdata;
1011         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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         return 0;
1047 }
1048
1049 #endif
1050
1051 static int ieee80211_change_bss(struct wiphy *wiphy,
1052                                 struct net_device *dev,
1053                                 struct bss_parameters *params)
1054 {
1055         struct ieee80211_sub_if_data *sdata;
1056         u32 changed = 0;
1057
1058         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1059
1060         if (params->use_cts_prot >= 0) {
1061                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1062                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1063         }
1064         if (params->use_short_preamble >= 0) {
1065                 sdata->vif.bss_conf.use_short_preamble =
1066                         params->use_short_preamble;
1067                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1068         }
1069         if (params->use_short_slot_time >= 0) {
1070                 sdata->vif.bss_conf.use_short_slot =
1071                         params->use_short_slot_time;
1072                 changed |= BSS_CHANGED_ERP_SLOT;
1073         }
1074
1075         if (params->basic_rates) {
1076                 int i, j;
1077                 u32 rates = 0;
1078                 struct ieee80211_local *local = wiphy_priv(wiphy);
1079                 struct ieee80211_supported_band *sband =
1080                         wiphy->bands[local->oper_channel->band];
1081
1082                 for (i = 0; i < params->basic_rates_len; i++) {
1083                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1084                         for (j = 0; j < sband->n_bitrates; j++) {
1085                                 if (sband->bitrates[j].bitrate == rate)
1086                                         rates |= BIT(j);
1087                         }
1088                 }
1089                 sdata->vif.bss_conf.basic_rates = rates;
1090                 changed |= BSS_CHANGED_BASIC_RATES;
1091         }
1092
1093         ieee80211_bss_info_change_notify(sdata, changed);
1094
1095         return 0;
1096 }
1097
1098 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1099                                     struct ieee80211_txq_params *params)
1100 {
1101         struct ieee80211_local *local = wiphy_priv(wiphy);
1102         struct ieee80211_tx_queue_params p;
1103
1104         if (!local->ops->conf_tx)
1105                 return -EOPNOTSUPP;
1106
1107         memset(&p, 0, sizeof(p));
1108         p.aifs = params->aifs;
1109         p.cw_max = params->cwmax;
1110         p.cw_min = params->cwmin;
1111         p.txop = params->txop;
1112         if (drv_conf_tx(local, params->queue, &p)) {
1113                 printk(KERN_DEBUG "%s: failed to set TX queue "
1114                        "parameters for queue %d\n",
1115                        wiphy_name(local->hw.wiphy), params->queue);
1116                 return -EINVAL;
1117         }
1118
1119         return 0;
1120 }
1121
1122 static int ieee80211_set_channel(struct wiphy *wiphy,
1123                                  struct ieee80211_channel *chan,
1124                                  enum nl80211_channel_type channel_type)
1125 {
1126         struct ieee80211_local *local = wiphy_priv(wiphy);
1127
1128         local->oper_channel = chan;
1129         local->oper_channel_type = channel_type;
1130
1131         return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1132 }
1133
1134 #ifdef CONFIG_PM
1135 static int ieee80211_suspend(struct wiphy *wiphy)
1136 {
1137         return __ieee80211_suspend(wiphy_priv(wiphy));
1138 }
1139
1140 static int ieee80211_resume(struct wiphy *wiphy)
1141 {
1142         return __ieee80211_resume(wiphy_priv(wiphy));
1143 }
1144 #else
1145 #define ieee80211_suspend NULL
1146 #define ieee80211_resume NULL
1147 #endif
1148
1149 static int ieee80211_scan(struct wiphy *wiphy,
1150                           struct net_device *dev,
1151                           struct cfg80211_scan_request *req)
1152 {
1153         struct ieee80211_sub_if_data *sdata;
1154
1155         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1156
1157         if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1158             sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1159             sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1160             (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1161                 return -EOPNOTSUPP;
1162
1163         return ieee80211_request_scan(sdata, req);
1164 }
1165
1166 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1167                           struct cfg80211_auth_request *req)
1168 {
1169         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1170 }
1171
1172 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1173                            struct cfg80211_assoc_request *req)
1174 {
1175         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1176 }
1177
1178 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1179                             struct cfg80211_deauth_request *req,
1180                             void *cookie)
1181 {
1182         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1183                                     req, cookie);
1184 }
1185
1186 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1187                               struct cfg80211_disassoc_request *req,
1188                               void *cookie)
1189 {
1190         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1191                                       req, cookie);
1192 }
1193
1194 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1195                                struct cfg80211_ibss_params *params)
1196 {
1197         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1198
1199         return ieee80211_ibss_join(sdata, params);
1200 }
1201
1202 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1203 {
1204         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1205
1206         return ieee80211_ibss_leave(sdata);
1207 }
1208
1209 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1210 {
1211         struct ieee80211_local *local = wiphy_priv(wiphy);
1212         int err;
1213
1214         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1215                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1216
1217                 if (err)
1218                         return err;
1219         }
1220
1221         if (changed & WIPHY_PARAM_RETRY_SHORT)
1222                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1223         if (changed & WIPHY_PARAM_RETRY_LONG)
1224                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1225         if (changed &
1226             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1227                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1228
1229         return 0;
1230 }
1231
1232 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1233                                   enum tx_power_setting type, int dbm)
1234 {
1235         struct ieee80211_local *local = wiphy_priv(wiphy);
1236         struct ieee80211_channel *chan = local->hw.conf.channel;
1237         u32 changes = 0;
1238
1239         switch (type) {
1240         case TX_POWER_AUTOMATIC:
1241                 local->user_power_level = -1;
1242                 break;
1243         case TX_POWER_LIMITED:
1244                 if (dbm < 0)
1245                         return -EINVAL;
1246                 local->user_power_level = dbm;
1247                 break;
1248         case TX_POWER_FIXED:
1249                 if (dbm < 0)
1250                         return -EINVAL;
1251                 /* TODO: move to cfg80211 when it knows the channel */
1252                 if (dbm > chan->max_power)
1253                         return -EINVAL;
1254                 local->user_power_level = dbm;
1255                 break;
1256         }
1257
1258         ieee80211_hw_config(local, changes);
1259
1260         return 0;
1261 }
1262
1263 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1264 {
1265         struct ieee80211_local *local = wiphy_priv(wiphy);
1266
1267         *dbm = local->hw.conf.power_level;
1268
1269         return 0;
1270 }
1271
1272 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1273                                   u8 *addr)
1274 {
1275         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1276
1277         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1278
1279         return 0;
1280 }
1281
1282 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1283 {
1284         struct ieee80211_local *local = wiphy_priv(wiphy);
1285
1286         drv_rfkill_poll(local);
1287 }
1288
1289 #ifdef CONFIG_NL80211_TESTMODE
1290 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1291 {
1292         struct ieee80211_local *local = wiphy_priv(wiphy);
1293
1294         if (!local->ops->testmode_cmd)
1295                 return -EOPNOTSUPP;
1296
1297         return local->ops->testmode_cmd(&local->hw, data, len);
1298 }
1299 #endif
1300
1301 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1302                                     bool enabled, int timeout)
1303 {
1304         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1305         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1306         struct ieee80211_conf *conf = &local->hw.conf;
1307
1308         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1309                 return -EOPNOTSUPP;
1310
1311         if (enabled == sdata->u.mgd.powersave &&
1312             timeout == conf->dynamic_ps_timeout)
1313                 return 0;
1314
1315         sdata->u.mgd.powersave = enabled;
1316         conf->dynamic_ps_timeout = timeout;
1317
1318         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1319                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1320
1321         ieee80211_recalc_ps(local, -1);
1322
1323         return 0;
1324 }
1325
1326 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1327                                       struct net_device *dev,
1328                                       const u8 *addr,
1329                                       const struct cfg80211_bitrate_mask *mask)
1330 {
1331         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1332         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1333         int i, err = -EINVAL;
1334         u32 target_rate;
1335         struct ieee80211_supported_band *sband;
1336
1337         sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
1338
1339         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
1340          * target_rate = X, rate->fixed = 1 means only rate X
1341          * target_rate = X, rate->fixed = 0 means all rates <= X */
1342         sdata->max_ratectrl_rateidx = -1;
1343         sdata->force_unicast_rateidx = -1;
1344
1345         if (mask->fixed)
1346                 target_rate = mask->fixed / 100;
1347         else if (mask->maxrate)
1348                 target_rate = mask->maxrate / 100;
1349         else
1350                 return 0;
1351
1352         for (i=0; i< sband->n_bitrates; i++) {
1353                 struct ieee80211_rate *brate = &sband->bitrates[i];
1354                 int this_rate = brate->bitrate;
1355
1356                 if (target_rate == this_rate) {
1357                         sdata->max_ratectrl_rateidx = i;
1358                         if (mask->fixed)
1359                                 sdata->force_unicast_rateidx = i;
1360                         err = 0;
1361                         break;
1362                 }
1363         }
1364
1365         return err;
1366 }
1367
1368 struct cfg80211_ops mac80211_config_ops = {
1369         .add_virtual_intf = ieee80211_add_iface,
1370         .del_virtual_intf = ieee80211_del_iface,
1371         .change_virtual_intf = ieee80211_change_iface,
1372         .add_key = ieee80211_add_key,
1373         .del_key = ieee80211_del_key,
1374         .get_key = ieee80211_get_key,
1375         .set_default_key = ieee80211_config_default_key,
1376         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1377         .add_beacon = ieee80211_add_beacon,
1378         .set_beacon = ieee80211_set_beacon,
1379         .del_beacon = ieee80211_del_beacon,
1380         .add_station = ieee80211_add_station,
1381         .del_station = ieee80211_del_station,
1382         .change_station = ieee80211_change_station,
1383         .get_station = ieee80211_get_station,
1384         .dump_station = ieee80211_dump_station,
1385 #ifdef CONFIG_MAC80211_MESH
1386         .add_mpath = ieee80211_add_mpath,
1387         .del_mpath = ieee80211_del_mpath,
1388         .change_mpath = ieee80211_change_mpath,
1389         .get_mpath = ieee80211_get_mpath,
1390         .dump_mpath = ieee80211_dump_mpath,
1391         .set_mesh_params = ieee80211_set_mesh_params,
1392         .get_mesh_params = ieee80211_get_mesh_params,
1393 #endif
1394         .change_bss = ieee80211_change_bss,
1395         .set_txq_params = ieee80211_set_txq_params,
1396         .set_channel = ieee80211_set_channel,
1397         .suspend = ieee80211_suspend,
1398         .resume = ieee80211_resume,
1399         .scan = ieee80211_scan,
1400         .auth = ieee80211_auth,
1401         .assoc = ieee80211_assoc,
1402         .deauth = ieee80211_deauth,
1403         .disassoc = ieee80211_disassoc,
1404         .join_ibss = ieee80211_join_ibss,
1405         .leave_ibss = ieee80211_leave_ibss,
1406         .set_wiphy_params = ieee80211_set_wiphy_params,
1407         .set_tx_power = ieee80211_set_tx_power,
1408         .get_tx_power = ieee80211_get_tx_power,
1409         .set_wds_peer = ieee80211_set_wds_peer,
1410         .rfkill_poll = ieee80211_rfkill_poll,
1411         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1412         .set_power_mgmt = ieee80211_set_power_mgmt,
1413         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1414 };