8b0e874a3d65f72ce25e7881152f883de2e8409b
[linux-2.6.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 int ieee80211_add_iface(struct wiphy *wiphy, char *name,
23                                enum nl80211_iftype type, u32 *flags,
24                                struct vif_params *params)
25 {
26         struct ieee80211_local *local = wiphy_priv(wiphy);
27         struct net_device *dev;
28         struct ieee80211_sub_if_data *sdata;
29         int err;
30
31         err = ieee80211_if_add(local, name, &dev, type, params);
32         if (err || type != NL80211_IFTYPE_MONITOR || !flags)
33                 return err;
34
35         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
36         sdata->u.mntr_flags = *flags;
37         return 0;
38 }
39
40 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
41 {
42         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
43
44         return 0;
45 }
46
47 static int ieee80211_change_iface(struct wiphy *wiphy,
48                                   struct net_device *dev,
49                                   enum nl80211_iftype type, u32 *flags,
50                                   struct vif_params *params)
51 {
52         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
53         int ret;
54
55         ret = ieee80211_if_change_type(sdata, type);
56         if (ret)
57                 return ret;
58
59         if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
60                 ieee80211_sdata_set_mesh_id(sdata,
61                                             params->mesh_id_len,
62                                             params->mesh_id);
63
64         if (type == NL80211_IFTYPE_AP_VLAN &&
65             params && params->use_4addr == 0)
66                 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
67         else if (type == NL80211_IFTYPE_STATION &&
68                  params && params->use_4addr >= 0)
69                 sdata->u.mgd.use_4addr = params->use_4addr;
70
71         if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
72                 struct ieee80211_local *local = sdata->local;
73
74                 if (ieee80211_sdata_running(sdata)) {
75                         /*
76                          * Prohibit MONITOR_FLAG_COOK_FRAMES to be
77                          * changed while the interface is up.
78                          * Else we would need to add a lot of cruft
79                          * to update everything:
80                          *      cooked_mntrs, monitor and all fif_* counters
81                          *      reconfigure hardware
82                          */
83                         if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
84                             (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
85                                 return -EBUSY;
86
87                         ieee80211_adjust_monitor_flags(sdata, -1);
88                         sdata->u.mntr_flags = *flags;
89                         ieee80211_adjust_monitor_flags(sdata, 1);
90
91                         ieee80211_configure_filter(local);
92                 } else {
93                         /*
94                          * Because the interface is down, ieee80211_do_stop
95                          * and ieee80211_do_open take care of "everything"
96                          * mentioned in the comment above.
97                          */
98                         sdata->u.mntr_flags = *flags;
99                 }
100         }
101
102         return 0;
103 }
104
105 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
106                              u8 key_idx, bool pairwise, const u8 *mac_addr,
107                              struct key_params *params)
108 {
109         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
110         struct sta_info *sta = NULL;
111         struct ieee80211_key *key;
112         int err;
113
114         if (!ieee80211_sdata_running(sdata))
115                 return -ENETDOWN;
116
117         /* reject WEP and TKIP keys if WEP failed to initialize */
118         switch (params->cipher) {
119         case WLAN_CIPHER_SUITE_WEP40:
120         case WLAN_CIPHER_SUITE_TKIP:
121         case WLAN_CIPHER_SUITE_WEP104:
122                 if (IS_ERR(sdata->local->wep_tx_tfm))
123                         return -EINVAL;
124                 break;
125         default:
126                 break;
127         }
128
129         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
130                                   params->key, params->seq_len, params->seq);
131         if (IS_ERR(key))
132                 return PTR_ERR(key);
133
134         if (pairwise)
135                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
136
137         mutex_lock(&sdata->local->sta_mtx);
138
139         if (mac_addr) {
140                 sta = sta_info_get_bss(sdata, mac_addr);
141                 if (!sta) {
142                         ieee80211_key_free(sdata->local, key);
143                         err = -ENOENT;
144                         goto out_unlock;
145                 }
146         }
147
148         err = ieee80211_key_link(key, sdata, sta);
149         if (err)
150                 ieee80211_key_free(sdata->local, key);
151
152  out_unlock:
153         mutex_unlock(&sdata->local->sta_mtx);
154
155         return err;
156 }
157
158 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
159                              u8 key_idx, bool pairwise, const u8 *mac_addr)
160 {
161         struct ieee80211_sub_if_data *sdata;
162         struct sta_info *sta;
163         int ret;
164
165         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
166
167         mutex_lock(&sdata->local->sta_mtx);
168
169         if (mac_addr) {
170                 ret = -ENOENT;
171
172                 sta = sta_info_get_bss(sdata, mac_addr);
173                 if (!sta)
174                         goto out_unlock;
175
176                 if (pairwise) {
177                         if (sta->ptk) {
178                                 ieee80211_key_free(sdata->local, sta->ptk);
179                                 ret = 0;
180                         }
181                 } else {
182                         if (sta->gtk[key_idx]) {
183                                 ieee80211_key_free(sdata->local,
184                                                    sta->gtk[key_idx]);
185                                 ret = 0;
186                         }
187                 }
188
189                 goto out_unlock;
190         }
191
192         if (!sdata->keys[key_idx]) {
193                 ret = -ENOENT;
194                 goto out_unlock;
195         }
196
197         ieee80211_key_free(sdata->local, sdata->keys[key_idx]);
198         WARN_ON(sdata->keys[key_idx]);
199
200         ret = 0;
201  out_unlock:
202         mutex_unlock(&sdata->local->sta_mtx);
203
204         return ret;
205 }
206
207 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
208                              u8 key_idx, bool pairwise, const u8 *mac_addr,
209                              void *cookie,
210                              void (*callback)(void *cookie,
211                                               struct key_params *params))
212 {
213         struct ieee80211_sub_if_data *sdata;
214         struct sta_info *sta = NULL;
215         u8 seq[6] = {0};
216         struct key_params params;
217         struct ieee80211_key *key = NULL;
218         u32 iv32;
219         u16 iv16;
220         int err = -ENOENT;
221
222         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
223
224         rcu_read_lock();
225
226         if (mac_addr) {
227                 sta = sta_info_get_bss(sdata, mac_addr);
228                 if (!sta)
229                         goto out;
230
231                 if (pairwise)
232                         key = sta->ptk;
233                 else if (key_idx < NUM_DEFAULT_KEYS)
234                         key = sta->gtk[key_idx];
235         } else
236                 key = sdata->keys[key_idx];
237
238         if (!key)
239                 goto out;
240
241         memset(&params, 0, sizeof(params));
242
243         params.cipher = key->conf.cipher;
244
245         switch (key->conf.cipher) {
246         case WLAN_CIPHER_SUITE_TKIP:
247                 iv32 = key->u.tkip.tx.iv32;
248                 iv16 = key->u.tkip.tx.iv16;
249
250                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
251                         drv_get_tkip_seq(sdata->local,
252                                          key->conf.hw_key_idx,
253                                          &iv32, &iv16);
254
255                 seq[0] = iv16 & 0xff;
256                 seq[1] = (iv16 >> 8) & 0xff;
257                 seq[2] = iv32 & 0xff;
258                 seq[3] = (iv32 >> 8) & 0xff;
259                 seq[4] = (iv32 >> 16) & 0xff;
260                 seq[5] = (iv32 >> 24) & 0xff;
261                 params.seq = seq;
262                 params.seq_len = 6;
263                 break;
264         case WLAN_CIPHER_SUITE_CCMP:
265                 seq[0] = key->u.ccmp.tx_pn[5];
266                 seq[1] = key->u.ccmp.tx_pn[4];
267                 seq[2] = key->u.ccmp.tx_pn[3];
268                 seq[3] = key->u.ccmp.tx_pn[2];
269                 seq[4] = key->u.ccmp.tx_pn[1];
270                 seq[5] = key->u.ccmp.tx_pn[0];
271                 params.seq = seq;
272                 params.seq_len = 6;
273                 break;
274         case WLAN_CIPHER_SUITE_AES_CMAC:
275                 seq[0] = key->u.aes_cmac.tx_pn[5];
276                 seq[1] = key->u.aes_cmac.tx_pn[4];
277                 seq[2] = key->u.aes_cmac.tx_pn[3];
278                 seq[3] = key->u.aes_cmac.tx_pn[2];
279                 seq[4] = key->u.aes_cmac.tx_pn[1];
280                 seq[5] = key->u.aes_cmac.tx_pn[0];
281                 params.seq = seq;
282                 params.seq_len = 6;
283                 break;
284         }
285
286         params.key = key->conf.key;
287         params.key_len = key->conf.keylen;
288
289         callback(cookie, &params);
290         err = 0;
291
292  out:
293         rcu_read_unlock();
294         return err;
295 }
296
297 static int ieee80211_config_default_key(struct wiphy *wiphy,
298                                         struct net_device *dev,
299                                         u8 key_idx)
300 {
301         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
302
303         ieee80211_set_default_key(sdata, key_idx);
304
305         return 0;
306 }
307
308 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
309                                              struct net_device *dev,
310                                              u8 key_idx)
311 {
312         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
313
314         ieee80211_set_default_mgmt_key(sdata, key_idx);
315
316         return 0;
317 }
318
319 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
320 {
321         struct ieee80211_sub_if_data *sdata = sta->sdata;
322
323         sinfo->generation = sdata->local->sta_generation;
324
325         sinfo->filled = STATION_INFO_INACTIVE_TIME |
326                         STATION_INFO_RX_BYTES |
327                         STATION_INFO_TX_BYTES |
328                         STATION_INFO_RX_PACKETS |
329                         STATION_INFO_TX_PACKETS |
330                         STATION_INFO_TX_BITRATE;
331
332         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
333         sinfo->rx_bytes = sta->rx_bytes;
334         sinfo->tx_bytes = sta->tx_bytes;
335         sinfo->rx_packets = sta->rx_packets;
336         sinfo->tx_packets = sta->tx_packets;
337
338         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
339             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
340                 sinfo->filled |= STATION_INFO_SIGNAL;
341                 sinfo->signal = (s8)sta->last_signal;
342         }
343
344         sinfo->txrate.flags = 0;
345         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
346                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
347         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
348                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
349         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
350                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
351
352         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
353                 struct ieee80211_supported_band *sband;
354                 sband = sta->local->hw.wiphy->bands[
355                                 sta->local->hw.conf.channel->band];
356                 sinfo->txrate.legacy =
357                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
358         } else
359                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
360
361         if (ieee80211_vif_is_mesh(&sdata->vif)) {
362 #ifdef CONFIG_MAC80211_MESH
363                 sinfo->filled |= STATION_INFO_LLID |
364                                  STATION_INFO_PLID |
365                                  STATION_INFO_PLINK_STATE;
366
367                 sinfo->llid = le16_to_cpu(sta->llid);
368                 sinfo->plid = le16_to_cpu(sta->plid);
369                 sinfo->plink_state = sta->plink_state;
370 #endif
371         }
372 }
373
374
375 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
376                                  int idx, u8 *mac, struct station_info *sinfo)
377 {
378         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
379         struct sta_info *sta;
380         int ret = -ENOENT;
381
382         rcu_read_lock();
383
384         sta = sta_info_get_by_idx(sdata, idx);
385         if (sta) {
386                 ret = 0;
387                 memcpy(mac, sta->sta.addr, ETH_ALEN);
388                 sta_set_sinfo(sta, sinfo);
389         }
390
391         rcu_read_unlock();
392
393         return ret;
394 }
395
396 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
397                                  int idx, struct survey_info *survey)
398 {
399         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
400
401         return drv_get_survey(local, idx, survey);
402 }
403
404 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
405                                  u8 *mac, struct station_info *sinfo)
406 {
407         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
408         struct sta_info *sta;
409         int ret = -ENOENT;
410
411         rcu_read_lock();
412
413         sta = sta_info_get_bss(sdata, mac);
414         if (sta) {
415                 ret = 0;
416                 sta_set_sinfo(sta, sinfo);
417         }
418
419         rcu_read_unlock();
420
421         return ret;
422 }
423
424 /*
425  * This handles both adding a beacon and setting new beacon info
426  */
427 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
428                                    struct beacon_parameters *params)
429 {
430         struct beacon_data *new, *old;
431         int new_head_len, new_tail_len;
432         int size;
433         int err = -EINVAL;
434
435         old = sdata->u.ap.beacon;
436
437         /* head must not be zero-length */
438         if (params->head && !params->head_len)
439                 return -EINVAL;
440
441         /*
442          * This is a kludge. beacon interval should really be part
443          * of the beacon information.
444          */
445         if (params->interval &&
446             (sdata->vif.bss_conf.beacon_int != params->interval)) {
447                 sdata->vif.bss_conf.beacon_int = params->interval;
448                 ieee80211_bss_info_change_notify(sdata,
449                                                  BSS_CHANGED_BEACON_INT);
450         }
451
452         /* Need to have a beacon head if we don't have one yet */
453         if (!params->head && !old)
454                 return err;
455
456         /* sorry, no way to start beaconing without dtim period */
457         if (!params->dtim_period && !old)
458                 return err;
459
460         /* new or old head? */
461         if (params->head)
462                 new_head_len = params->head_len;
463         else
464                 new_head_len = old->head_len;
465
466         /* new or old tail? */
467         if (params->tail || !old)
468                 /* params->tail_len will be zero for !params->tail */
469                 new_tail_len = params->tail_len;
470         else
471                 new_tail_len = old->tail_len;
472
473         size = sizeof(*new) + new_head_len + new_tail_len;
474
475         new = kzalloc(size, GFP_KERNEL);
476         if (!new)
477                 return -ENOMEM;
478
479         /* start filling the new info now */
480
481         /* new or old dtim period? */
482         if (params->dtim_period)
483                 new->dtim_period = params->dtim_period;
484         else
485                 new->dtim_period = old->dtim_period;
486
487         /*
488          * pointers go into the block we allocated,
489          * memory is | beacon_data | head | tail |
490          */
491         new->head = ((u8 *) new) + sizeof(*new);
492         new->tail = new->head + new_head_len;
493         new->head_len = new_head_len;
494         new->tail_len = new_tail_len;
495
496         /* copy in head */
497         if (params->head)
498                 memcpy(new->head, params->head, new_head_len);
499         else
500                 memcpy(new->head, old->head, new_head_len);
501
502         /* copy in optional tail */
503         if (params->tail)
504                 memcpy(new->tail, params->tail, new_tail_len);
505         else
506                 if (old)
507                         memcpy(new->tail, old->tail, new_tail_len);
508
509         sdata->vif.bss_conf.dtim_period = new->dtim_period;
510
511         rcu_assign_pointer(sdata->u.ap.beacon, new);
512
513         synchronize_rcu();
514
515         kfree(old);
516
517         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
518                                                 BSS_CHANGED_BEACON);
519         return 0;
520 }
521
522 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
523                                 struct beacon_parameters *params)
524 {
525         struct ieee80211_sub_if_data *sdata;
526         struct beacon_data *old;
527
528         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
529
530         old = sdata->u.ap.beacon;
531
532         if (old)
533                 return -EALREADY;
534
535         return ieee80211_config_beacon(sdata, params);
536 }
537
538 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
539                                 struct beacon_parameters *params)
540 {
541         struct ieee80211_sub_if_data *sdata;
542         struct beacon_data *old;
543
544         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
545
546         old = sdata->u.ap.beacon;
547
548         if (!old)
549                 return -ENOENT;
550
551         return ieee80211_config_beacon(sdata, params);
552 }
553
554 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
555 {
556         struct ieee80211_sub_if_data *sdata;
557         struct beacon_data *old;
558
559         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
560
561         old = sdata->u.ap.beacon;
562
563         if (!old)
564                 return -ENOENT;
565
566         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
567         synchronize_rcu();
568         kfree(old);
569
570         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
571         return 0;
572 }
573
574 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
575 struct iapp_layer2_update {
576         u8 da[ETH_ALEN];        /* broadcast */
577         u8 sa[ETH_ALEN];        /* STA addr */
578         __be16 len;             /* 6 */
579         u8 dsap;                /* 0 */
580         u8 ssap;                /* 0 */
581         u8 control;
582         u8 xid_info[3];
583 } __packed;
584
585 static void ieee80211_send_layer2_update(struct sta_info *sta)
586 {
587         struct iapp_layer2_update *msg;
588         struct sk_buff *skb;
589
590         /* Send Level 2 Update Frame to update forwarding tables in layer 2
591          * bridge devices */
592
593         skb = dev_alloc_skb(sizeof(*msg));
594         if (!skb)
595                 return;
596         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
597
598         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
599          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
600
601         memset(msg->da, 0xff, ETH_ALEN);
602         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
603         msg->len = htons(6);
604         msg->dsap = 0;
605         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
606         msg->control = 0xaf;    /* XID response lsb.1111F101.
607                                  * F=0 (no poll command; unsolicited frame) */
608         msg->xid_info[0] = 0x81;        /* XID format identifier */
609         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
610         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
611
612         skb->dev = sta->sdata->dev;
613         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
614         memset(skb->cb, 0, sizeof(skb->cb));
615         netif_rx_ni(skb);
616 }
617
618 static void sta_apply_parameters(struct ieee80211_local *local,
619                                  struct sta_info *sta,
620                                  struct station_parameters *params)
621 {
622         unsigned long flags;
623         u32 rates;
624         int i, j;
625         struct ieee80211_supported_band *sband;
626         struct ieee80211_sub_if_data *sdata = sta->sdata;
627         u32 mask, set;
628
629         sband = local->hw.wiphy->bands[local->oper_channel->band];
630
631         spin_lock_irqsave(&sta->flaglock, flags);
632         mask = params->sta_flags_mask;
633         set = params->sta_flags_set;
634
635         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
636                 sta->flags &= ~WLAN_STA_AUTHORIZED;
637                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
638                         sta->flags |= WLAN_STA_AUTHORIZED;
639         }
640
641         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
642                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
643                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
644                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
645         }
646
647         if (mask & BIT(NL80211_STA_FLAG_WME)) {
648                 sta->flags &= ~WLAN_STA_WME;
649                 if (set & BIT(NL80211_STA_FLAG_WME))
650                         sta->flags |= WLAN_STA_WME;
651         }
652
653         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
654                 sta->flags &= ~WLAN_STA_MFP;
655                 if (set & BIT(NL80211_STA_FLAG_MFP))
656                         sta->flags |= WLAN_STA_MFP;
657         }
658         spin_unlock_irqrestore(&sta->flaglock, flags);
659
660         /*
661          * cfg80211 validates this (1-2007) and allows setting the AID
662          * only when creating a new station entry
663          */
664         if (params->aid)
665                 sta->sta.aid = params->aid;
666
667         /*
668          * FIXME: updating the following information is racy when this
669          *        function is called from ieee80211_change_station().
670          *        However, all this information should be static so
671          *        maybe we should just reject attemps to change it.
672          */
673
674         if (params->listen_interval >= 0)
675                 sta->listen_interval = params->listen_interval;
676
677         if (params->supported_rates) {
678                 rates = 0;
679
680                 for (i = 0; i < params->supported_rates_len; i++) {
681                         int rate = (params->supported_rates[i] & 0x7f) * 5;
682                         for (j = 0; j < sband->n_bitrates; j++) {
683                                 if (sband->bitrates[j].bitrate == rate)
684                                         rates |= BIT(j);
685                         }
686                 }
687                 sta->sta.supp_rates[local->oper_channel->band] = rates;
688         }
689
690         if (params->ht_capa)
691                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
692                                                   params->ht_capa,
693                                                   &sta->sta.ht_cap);
694
695         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
696                 switch (params->plink_action) {
697                 case PLINK_ACTION_OPEN:
698                         mesh_plink_open(sta);
699                         break;
700                 case PLINK_ACTION_BLOCK:
701                         mesh_plink_block(sta);
702                         break;
703                 }
704         }
705 }
706
707 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
708                                  u8 *mac, struct station_parameters *params)
709 {
710         struct ieee80211_local *local = wiphy_priv(wiphy);
711         struct sta_info *sta;
712         struct ieee80211_sub_if_data *sdata;
713         int err;
714         int layer2_update;
715
716         if (params->vlan) {
717                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
718
719                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
720                     sdata->vif.type != NL80211_IFTYPE_AP)
721                         return -EINVAL;
722         } else
723                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
724
725         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
726                 return -EINVAL;
727
728         if (is_multicast_ether_addr(mac))
729                 return -EINVAL;
730
731         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
732         if (!sta)
733                 return -ENOMEM;
734
735         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
736
737         sta_apply_parameters(local, sta, params);
738
739         rate_control_rate_init(sta);
740
741         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
742                 sdata->vif.type == NL80211_IFTYPE_AP;
743
744         err = sta_info_insert_rcu(sta);
745         if (err) {
746                 rcu_read_unlock();
747                 return err;
748         }
749
750         if (layer2_update)
751                 ieee80211_send_layer2_update(sta);
752
753         rcu_read_unlock();
754
755         return 0;
756 }
757
758 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
759                                  u8 *mac)
760 {
761         struct ieee80211_local *local = wiphy_priv(wiphy);
762         struct ieee80211_sub_if_data *sdata;
763
764         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
765
766         if (mac)
767                 return sta_info_destroy_addr_bss(sdata, mac);
768
769         sta_info_flush(local, sdata);
770         return 0;
771 }
772
773 static int ieee80211_change_station(struct wiphy *wiphy,
774                                     struct net_device *dev,
775                                     u8 *mac,
776                                     struct station_parameters *params)
777 {
778         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
779         struct ieee80211_local *local = wiphy_priv(wiphy);
780         struct sta_info *sta;
781         struct ieee80211_sub_if_data *vlansdata;
782
783         rcu_read_lock();
784
785         sta = sta_info_get_bss(sdata, mac);
786         if (!sta) {
787                 rcu_read_unlock();
788                 return -ENOENT;
789         }
790
791         if (params->vlan && params->vlan != sta->sdata->dev) {
792                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
793
794                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
795                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
796                         rcu_read_unlock();
797                         return -EINVAL;
798                 }
799
800                 if (params->vlan->ieee80211_ptr->use_4addr) {
801                         if (vlansdata->u.vlan.sta) {
802                                 rcu_read_unlock();
803                                 return -EBUSY;
804                         }
805
806                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
807                 }
808
809                 sta->sdata = vlansdata;
810                 ieee80211_send_layer2_update(sta);
811         }
812
813         sta_apply_parameters(local, sta, params);
814
815         rcu_read_unlock();
816
817         return 0;
818 }
819
820 #ifdef CONFIG_MAC80211_MESH
821 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
822                                  u8 *dst, u8 *next_hop)
823 {
824         struct ieee80211_sub_if_data *sdata;
825         struct mesh_path *mpath;
826         struct sta_info *sta;
827         int err;
828
829         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
830
831         rcu_read_lock();
832         sta = sta_info_get(sdata, next_hop);
833         if (!sta) {
834                 rcu_read_unlock();
835                 return -ENOENT;
836         }
837
838         err = mesh_path_add(dst, sdata);
839         if (err) {
840                 rcu_read_unlock();
841                 return err;
842         }
843
844         mpath = mesh_path_lookup(dst, sdata);
845         if (!mpath) {
846                 rcu_read_unlock();
847                 return -ENXIO;
848         }
849         mesh_path_fix_nexthop(mpath, sta);
850
851         rcu_read_unlock();
852         return 0;
853 }
854
855 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
856                                  u8 *dst)
857 {
858         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
859
860         if (dst)
861                 return mesh_path_del(dst, sdata);
862
863         mesh_path_flush(sdata);
864         return 0;
865 }
866
867 static int ieee80211_change_mpath(struct wiphy *wiphy,
868                                     struct net_device *dev,
869                                     u8 *dst, u8 *next_hop)
870 {
871         struct ieee80211_sub_if_data *sdata;
872         struct mesh_path *mpath;
873         struct sta_info *sta;
874
875         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
876
877         rcu_read_lock();
878
879         sta = sta_info_get(sdata, next_hop);
880         if (!sta) {
881                 rcu_read_unlock();
882                 return -ENOENT;
883         }
884
885         mpath = mesh_path_lookup(dst, sdata);
886         if (!mpath) {
887                 rcu_read_unlock();
888                 return -ENOENT;
889         }
890
891         mesh_path_fix_nexthop(mpath, sta);
892
893         rcu_read_unlock();
894         return 0;
895 }
896
897 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
898                             struct mpath_info *pinfo)
899 {
900         if (mpath->next_hop)
901                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
902         else
903                 memset(next_hop, 0, ETH_ALEN);
904
905         pinfo->generation = mesh_paths_generation;
906
907         pinfo->filled = MPATH_INFO_FRAME_QLEN |
908                         MPATH_INFO_SN |
909                         MPATH_INFO_METRIC |
910                         MPATH_INFO_EXPTIME |
911                         MPATH_INFO_DISCOVERY_TIMEOUT |
912                         MPATH_INFO_DISCOVERY_RETRIES |
913                         MPATH_INFO_FLAGS;
914
915         pinfo->frame_qlen = mpath->frame_queue.qlen;
916         pinfo->sn = mpath->sn;
917         pinfo->metric = mpath->metric;
918         if (time_before(jiffies, mpath->exp_time))
919                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
920         pinfo->discovery_timeout =
921                         jiffies_to_msecs(mpath->discovery_timeout);
922         pinfo->discovery_retries = mpath->discovery_retries;
923         pinfo->flags = 0;
924         if (mpath->flags & MESH_PATH_ACTIVE)
925                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
926         if (mpath->flags & MESH_PATH_RESOLVING)
927                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
928         if (mpath->flags & MESH_PATH_SN_VALID)
929                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
930         if (mpath->flags & MESH_PATH_FIXED)
931                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
932         if (mpath->flags & MESH_PATH_RESOLVING)
933                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
934
935         pinfo->flags = mpath->flags;
936 }
937
938 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
939                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
940
941 {
942         struct ieee80211_sub_if_data *sdata;
943         struct mesh_path *mpath;
944
945         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
946
947         rcu_read_lock();
948         mpath = mesh_path_lookup(dst, sdata);
949         if (!mpath) {
950                 rcu_read_unlock();
951                 return -ENOENT;
952         }
953         memcpy(dst, mpath->dst, ETH_ALEN);
954         mpath_set_pinfo(mpath, next_hop, pinfo);
955         rcu_read_unlock();
956         return 0;
957 }
958
959 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
960                                  int idx, u8 *dst, u8 *next_hop,
961                                  struct mpath_info *pinfo)
962 {
963         struct ieee80211_sub_if_data *sdata;
964         struct mesh_path *mpath;
965
966         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
967
968         rcu_read_lock();
969         mpath = mesh_path_lookup_by_idx(idx, sdata);
970         if (!mpath) {
971                 rcu_read_unlock();
972                 return -ENOENT;
973         }
974         memcpy(dst, mpath->dst, ETH_ALEN);
975         mpath_set_pinfo(mpath, next_hop, pinfo);
976         rcu_read_unlock();
977         return 0;
978 }
979
980 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
981                                 struct net_device *dev,
982                                 struct mesh_config *conf)
983 {
984         struct ieee80211_sub_if_data *sdata;
985         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
986
987         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
988         return 0;
989 }
990
991 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
992 {
993         return (mask >> (parm-1)) & 0x1;
994 }
995
996 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
997                                 struct net_device *dev,
998                                 const struct mesh_config *nconf, u32 mask)
999 {
1000         struct mesh_config *conf;
1001         struct ieee80211_sub_if_data *sdata;
1002         struct ieee80211_if_mesh *ifmsh;
1003
1004         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1005         ifmsh = &sdata->u.mesh;
1006
1007         /* Set the config options which we are interested in setting */
1008         conf = &(sdata->u.mesh.mshcfg);
1009         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1010                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1011         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1012                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1013         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1014                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1015         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1016                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1017         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1018                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1019         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1020                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1021         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1022                 conf->auto_open_plinks = nconf->auto_open_plinks;
1023         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1024                 conf->dot11MeshHWMPmaxPREQretries =
1025                         nconf->dot11MeshHWMPmaxPREQretries;
1026         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1027                 conf->path_refresh_time = nconf->path_refresh_time;
1028         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1029                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1030         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1031                 conf->dot11MeshHWMPactivePathTimeout =
1032                         nconf->dot11MeshHWMPactivePathTimeout;
1033         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1034                 conf->dot11MeshHWMPpreqMinInterval =
1035                         nconf->dot11MeshHWMPpreqMinInterval;
1036         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1037                            mask))
1038                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1039                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1040         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1041                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1042                 ieee80211_mesh_root_setup(ifmsh);
1043         }
1044         return 0;
1045 }
1046
1047 #endif
1048
1049 static int ieee80211_change_bss(struct wiphy *wiphy,
1050                                 struct net_device *dev,
1051                                 struct bss_parameters *params)
1052 {
1053         struct ieee80211_sub_if_data *sdata;
1054         u32 changed = 0;
1055
1056         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1057
1058         if (params->use_cts_prot >= 0) {
1059                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1060                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1061         }
1062         if (params->use_short_preamble >= 0) {
1063                 sdata->vif.bss_conf.use_short_preamble =
1064                         params->use_short_preamble;
1065                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1066         }
1067
1068         if (!sdata->vif.bss_conf.use_short_slot &&
1069             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1070                 sdata->vif.bss_conf.use_short_slot = true;
1071                 changed |= BSS_CHANGED_ERP_SLOT;
1072         }
1073
1074         if (params->use_short_slot_time >= 0) {
1075                 sdata->vif.bss_conf.use_short_slot =
1076                         params->use_short_slot_time;
1077                 changed |= BSS_CHANGED_ERP_SLOT;
1078         }
1079
1080         if (params->basic_rates) {
1081                 int i, j;
1082                 u32 rates = 0;
1083                 struct ieee80211_local *local = wiphy_priv(wiphy);
1084                 struct ieee80211_supported_band *sband =
1085                         wiphy->bands[local->oper_channel->band];
1086
1087                 for (i = 0; i < params->basic_rates_len; i++) {
1088                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1089                         for (j = 0; j < sband->n_bitrates; j++) {
1090                                 if (sband->bitrates[j].bitrate == rate)
1091                                         rates |= BIT(j);
1092                         }
1093                 }
1094                 sdata->vif.bss_conf.basic_rates = rates;
1095                 changed |= BSS_CHANGED_BASIC_RATES;
1096         }
1097
1098         if (params->ap_isolate >= 0) {
1099                 if (params->ap_isolate)
1100                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1101                 else
1102                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1103         }
1104
1105         ieee80211_bss_info_change_notify(sdata, changed);
1106
1107         return 0;
1108 }
1109
1110 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1111                                     struct ieee80211_txq_params *params)
1112 {
1113         struct ieee80211_local *local = wiphy_priv(wiphy);
1114         struct ieee80211_tx_queue_params p;
1115
1116         if (!local->ops->conf_tx)
1117                 return -EOPNOTSUPP;
1118
1119         memset(&p, 0, sizeof(p));
1120         p.aifs = params->aifs;
1121         p.cw_max = params->cwmax;
1122         p.cw_min = params->cwmin;
1123         p.txop = params->txop;
1124
1125         /*
1126          * Setting tx queue params disables u-apsd because it's only
1127          * called in master mode.
1128          */
1129         p.uapsd = false;
1130
1131         if (drv_conf_tx(local, params->queue, &p)) {
1132                 wiphy_debug(local->hw.wiphy,
1133                             "failed to set TX queue parameters for queue %d\n",
1134                             params->queue);
1135                 return -EINVAL;
1136         }
1137
1138         return 0;
1139 }
1140
1141 static int ieee80211_set_channel(struct wiphy *wiphy,
1142                                  struct net_device *netdev,
1143                                  struct ieee80211_channel *chan,
1144                                  enum nl80211_channel_type channel_type)
1145 {
1146         struct ieee80211_local *local = wiphy_priv(wiphy);
1147         struct ieee80211_sub_if_data *sdata = NULL;
1148
1149         if (netdev)
1150                 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1151
1152         switch (ieee80211_get_channel_mode(local, NULL)) {
1153         case CHAN_MODE_HOPPING:
1154                 return -EBUSY;
1155         case CHAN_MODE_FIXED:
1156                 if (local->oper_channel != chan)
1157                         return -EBUSY;
1158                 if (!sdata && local->_oper_channel_type == channel_type)
1159                         return 0;
1160                 break;
1161         case CHAN_MODE_UNDEFINED:
1162                 break;
1163         }
1164
1165         local->oper_channel = chan;
1166
1167         if (!ieee80211_set_channel_type(local, sdata, channel_type))
1168                 return -EBUSY;
1169
1170         ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1171         if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1172                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1173
1174         return 0;
1175 }
1176
1177 #ifdef CONFIG_PM
1178 static int ieee80211_suspend(struct wiphy *wiphy)
1179 {
1180         return __ieee80211_suspend(wiphy_priv(wiphy));
1181 }
1182
1183 static int ieee80211_resume(struct wiphy *wiphy)
1184 {
1185         return __ieee80211_resume(wiphy_priv(wiphy));
1186 }
1187 #else
1188 #define ieee80211_suspend NULL
1189 #define ieee80211_resume NULL
1190 #endif
1191
1192 static int ieee80211_scan(struct wiphy *wiphy,
1193                           struct net_device *dev,
1194                           struct cfg80211_scan_request *req)
1195 {
1196         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1197
1198         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1199         case NL80211_IFTYPE_STATION:
1200         case NL80211_IFTYPE_ADHOC:
1201         case NL80211_IFTYPE_MESH_POINT:
1202         case NL80211_IFTYPE_P2P_CLIENT:
1203                 break;
1204         case NL80211_IFTYPE_P2P_GO:
1205                 if (sdata->local->ops->hw_scan)
1206                         break;
1207                 /* FIXME: implement NoA while scanning in software */
1208                 return -EOPNOTSUPP;
1209         case NL80211_IFTYPE_AP:
1210                 if (sdata->u.ap.beacon)
1211                         return -EOPNOTSUPP;
1212                 break;
1213         default:
1214                 return -EOPNOTSUPP;
1215         }
1216
1217         return ieee80211_request_scan(sdata, req);
1218 }
1219
1220 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1221                           struct cfg80211_auth_request *req)
1222 {
1223         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1224 }
1225
1226 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1227                            struct cfg80211_assoc_request *req)
1228 {
1229         struct ieee80211_local *local = wiphy_priv(wiphy);
1230         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1231
1232         switch (ieee80211_get_channel_mode(local, sdata)) {
1233         case CHAN_MODE_HOPPING:
1234                 return -EBUSY;
1235         case CHAN_MODE_FIXED:
1236                 if (local->oper_channel == req->bss->channel)
1237                         break;
1238                 return -EBUSY;
1239         case CHAN_MODE_UNDEFINED:
1240                 break;
1241         }
1242
1243         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1244 }
1245
1246 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1247                             struct cfg80211_deauth_request *req,
1248                             void *cookie)
1249 {
1250         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1251                                     req, cookie);
1252 }
1253
1254 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1255                               struct cfg80211_disassoc_request *req,
1256                               void *cookie)
1257 {
1258         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1259                                       req, cookie);
1260 }
1261
1262 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1263                                struct cfg80211_ibss_params *params)
1264 {
1265         struct ieee80211_local *local = wiphy_priv(wiphy);
1266         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1267
1268         switch (ieee80211_get_channel_mode(local, sdata)) {
1269         case CHAN_MODE_HOPPING:
1270                 return -EBUSY;
1271         case CHAN_MODE_FIXED:
1272                 if (!params->channel_fixed)
1273                         return -EBUSY;
1274                 if (local->oper_channel == params->channel)
1275                         break;
1276                 return -EBUSY;
1277         case CHAN_MODE_UNDEFINED:
1278                 break;
1279         }
1280
1281         return ieee80211_ibss_join(sdata, params);
1282 }
1283
1284 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1285 {
1286         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1287
1288         return ieee80211_ibss_leave(sdata);
1289 }
1290
1291 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1292 {
1293         struct ieee80211_local *local = wiphy_priv(wiphy);
1294         int err;
1295
1296         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1297                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1298
1299                 if (err)
1300                         return err;
1301         }
1302
1303         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1304                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1305
1306                 if (err)
1307                         return err;
1308         }
1309
1310         if (changed & WIPHY_PARAM_RETRY_SHORT)
1311                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1312         if (changed & WIPHY_PARAM_RETRY_LONG)
1313                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1314         if (changed &
1315             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1316                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1317
1318         return 0;
1319 }
1320
1321 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1322                                   enum nl80211_tx_power_setting type, int mbm)
1323 {
1324         struct ieee80211_local *local = wiphy_priv(wiphy);
1325         struct ieee80211_channel *chan = local->hw.conf.channel;
1326         u32 changes = 0;
1327
1328         switch (type) {
1329         case NL80211_TX_POWER_AUTOMATIC:
1330                 local->user_power_level = -1;
1331                 break;
1332         case NL80211_TX_POWER_LIMITED:
1333                 if (mbm < 0 || (mbm % 100))
1334                         return -EOPNOTSUPP;
1335                 local->user_power_level = MBM_TO_DBM(mbm);
1336                 break;
1337         case NL80211_TX_POWER_FIXED:
1338                 if (mbm < 0 || (mbm % 100))
1339                         return -EOPNOTSUPP;
1340                 /* TODO: move to cfg80211 when it knows the channel */
1341                 if (MBM_TO_DBM(mbm) > chan->max_power)
1342                         return -EINVAL;
1343                 local->user_power_level = MBM_TO_DBM(mbm);
1344                 break;
1345         }
1346
1347         ieee80211_hw_config(local, changes);
1348
1349         return 0;
1350 }
1351
1352 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1353 {
1354         struct ieee80211_local *local = wiphy_priv(wiphy);
1355
1356         *dbm = local->hw.conf.power_level;
1357
1358         return 0;
1359 }
1360
1361 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1362                                   u8 *addr)
1363 {
1364         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1365
1366         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1367
1368         return 0;
1369 }
1370
1371 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1372 {
1373         struct ieee80211_local *local = wiphy_priv(wiphy);
1374
1375         drv_rfkill_poll(local);
1376 }
1377
1378 #ifdef CONFIG_NL80211_TESTMODE
1379 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1380 {
1381         struct ieee80211_local *local = wiphy_priv(wiphy);
1382
1383         if (!local->ops->testmode_cmd)
1384                 return -EOPNOTSUPP;
1385
1386         return local->ops->testmode_cmd(&local->hw, data, len);
1387 }
1388 #endif
1389
1390 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1391                              enum ieee80211_smps_mode smps_mode)
1392 {
1393         const u8 *ap;
1394         enum ieee80211_smps_mode old_req;
1395         int err;
1396
1397         old_req = sdata->u.mgd.req_smps;
1398         sdata->u.mgd.req_smps = smps_mode;
1399
1400         if (old_req == smps_mode &&
1401             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1402                 return 0;
1403
1404         /*
1405          * If not associated, or current association is not an HT
1406          * association, there's no need to send an action frame.
1407          */
1408         if (!sdata->u.mgd.associated ||
1409             sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1410                 mutex_lock(&sdata->local->iflist_mtx);
1411                 ieee80211_recalc_smps(sdata->local);
1412                 mutex_unlock(&sdata->local->iflist_mtx);
1413                 return 0;
1414         }
1415
1416         ap = sdata->u.mgd.associated->bssid;
1417
1418         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1419                 if (sdata->u.mgd.powersave)
1420                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1421                 else
1422                         smps_mode = IEEE80211_SMPS_OFF;
1423         }
1424
1425         /* send SM PS frame to AP */
1426         err = ieee80211_send_smps_action(sdata, smps_mode,
1427                                          ap, ap);
1428         if (err)
1429                 sdata->u.mgd.req_smps = old_req;
1430
1431         return err;
1432 }
1433
1434 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1435                                     bool enabled, int timeout)
1436 {
1437         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1438         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1439
1440         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1441                 return -EOPNOTSUPP;
1442
1443         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1444                 return -EOPNOTSUPP;
1445
1446         if (enabled == sdata->u.mgd.powersave &&
1447             timeout == local->dynamic_ps_forced_timeout)
1448                 return 0;
1449
1450         sdata->u.mgd.powersave = enabled;
1451         local->dynamic_ps_forced_timeout = timeout;
1452
1453         /* no change, but if automatic follow powersave */
1454         mutex_lock(&sdata->u.mgd.mtx);
1455         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1456         mutex_unlock(&sdata->u.mgd.mtx);
1457
1458         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1459                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1460
1461         ieee80211_recalc_ps(local, -1);
1462
1463         return 0;
1464 }
1465
1466 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1467                                          struct net_device *dev,
1468                                          s32 rssi_thold, u32 rssi_hyst)
1469 {
1470         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1471         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1472         struct ieee80211_vif *vif = &sdata->vif;
1473         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1474
1475         if (rssi_thold == bss_conf->cqm_rssi_thold &&
1476             rssi_hyst == bss_conf->cqm_rssi_hyst)
1477                 return 0;
1478
1479         bss_conf->cqm_rssi_thold = rssi_thold;
1480         bss_conf->cqm_rssi_hyst = rssi_hyst;
1481
1482         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1483                 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1484                         return -EOPNOTSUPP;
1485                 return 0;
1486         }
1487
1488         /* tell the driver upon association, unless already associated */
1489         if (sdata->u.mgd.associated)
1490                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1491
1492         return 0;
1493 }
1494
1495 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1496                                       struct net_device *dev,
1497                                       const u8 *addr,
1498                                       const struct cfg80211_bitrate_mask *mask)
1499 {
1500         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1501         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1502         int i;
1503
1504         /*
1505          * This _could_ be supported by providing a hook for
1506          * drivers for this function, but at this point it
1507          * doesn't seem worth bothering.
1508          */
1509         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1510                 return -EOPNOTSUPP;
1511
1512
1513         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1514                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1515
1516         return 0;
1517 }
1518
1519 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1520                                        struct net_device *dev,
1521                                        struct ieee80211_channel *chan,
1522                                        enum nl80211_channel_type channel_type,
1523                                        unsigned int duration,
1524                                        u64 *cookie)
1525 {
1526         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1527
1528         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1529                                               duration, cookie);
1530 }
1531
1532 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1533                                               struct net_device *dev,
1534                                               u64 cookie)
1535 {
1536         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1537
1538         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1539 }
1540
1541 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1542                              struct ieee80211_channel *chan,
1543                              enum nl80211_channel_type channel_type,
1544                              bool channel_type_valid,
1545                              const u8 *buf, size_t len, u64 *cookie)
1546 {
1547         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1548         struct ieee80211_local *local = sdata->local;
1549         struct sk_buff *skb;
1550         struct sta_info *sta;
1551         const struct ieee80211_mgmt *mgmt = (void *)buf;
1552         u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1553                     IEEE80211_TX_CTL_REQ_TX_STATUS;
1554
1555         /* Check that we are on the requested channel for transmission */
1556         if (chan != local->tmp_channel &&
1557             chan != local->oper_channel)
1558                 return -EBUSY;
1559         if (channel_type_valid &&
1560             (channel_type != local->tmp_channel_type &&
1561              channel_type != local->_oper_channel_type))
1562                 return -EBUSY;
1563
1564         switch (sdata->vif.type) {
1565         case NL80211_IFTYPE_ADHOC:
1566         case NL80211_IFTYPE_AP:
1567         case NL80211_IFTYPE_AP_VLAN:
1568         case NL80211_IFTYPE_P2P_GO:
1569                 if (!ieee80211_is_action(mgmt->frame_control) ||
1570                     mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1571                         break;
1572                 rcu_read_lock();
1573                 sta = sta_info_get(sdata, mgmt->da);
1574                 rcu_read_unlock();
1575                 if (!sta)
1576                         return -ENOLINK;
1577                 break;
1578         case NL80211_IFTYPE_STATION:
1579         case NL80211_IFTYPE_P2P_CLIENT:
1580                 break;
1581         default:
1582                 return -EOPNOTSUPP;
1583         }
1584
1585         skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1586         if (!skb)
1587                 return -ENOMEM;
1588         skb_reserve(skb, local->hw.extra_tx_headroom);
1589
1590         memcpy(skb_put(skb, len), buf, len);
1591
1592         IEEE80211_SKB_CB(skb)->flags = flags;
1593
1594         skb->dev = sdata->dev;
1595         ieee80211_tx_skb(sdata, skb);
1596
1597         *cookie = (unsigned long) skb;
1598         return 0;
1599 }
1600
1601 struct cfg80211_ops mac80211_config_ops = {
1602         .add_virtual_intf = ieee80211_add_iface,
1603         .del_virtual_intf = ieee80211_del_iface,
1604         .change_virtual_intf = ieee80211_change_iface,
1605         .add_key = ieee80211_add_key,
1606         .del_key = ieee80211_del_key,
1607         .get_key = ieee80211_get_key,
1608         .set_default_key = ieee80211_config_default_key,
1609         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1610         .add_beacon = ieee80211_add_beacon,
1611         .set_beacon = ieee80211_set_beacon,
1612         .del_beacon = ieee80211_del_beacon,
1613         .add_station = ieee80211_add_station,
1614         .del_station = ieee80211_del_station,
1615         .change_station = ieee80211_change_station,
1616         .get_station = ieee80211_get_station,
1617         .dump_station = ieee80211_dump_station,
1618         .dump_survey = ieee80211_dump_survey,
1619 #ifdef CONFIG_MAC80211_MESH
1620         .add_mpath = ieee80211_add_mpath,
1621         .del_mpath = ieee80211_del_mpath,
1622         .change_mpath = ieee80211_change_mpath,
1623         .get_mpath = ieee80211_get_mpath,
1624         .dump_mpath = ieee80211_dump_mpath,
1625         .set_mesh_params = ieee80211_set_mesh_params,
1626         .get_mesh_params = ieee80211_get_mesh_params,
1627 #endif
1628         .change_bss = ieee80211_change_bss,
1629         .set_txq_params = ieee80211_set_txq_params,
1630         .set_channel = ieee80211_set_channel,
1631         .suspend = ieee80211_suspend,
1632         .resume = ieee80211_resume,
1633         .scan = ieee80211_scan,
1634         .auth = ieee80211_auth,
1635         .assoc = ieee80211_assoc,
1636         .deauth = ieee80211_deauth,
1637         .disassoc = ieee80211_disassoc,
1638         .join_ibss = ieee80211_join_ibss,
1639         .leave_ibss = ieee80211_leave_ibss,
1640         .set_wiphy_params = ieee80211_set_wiphy_params,
1641         .set_tx_power = ieee80211_set_tx_power,
1642         .get_tx_power = ieee80211_get_tx_power,
1643         .set_wds_peer = ieee80211_set_wds_peer,
1644         .rfkill_poll = ieee80211_rfkill_poll,
1645         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1646         .set_power_mgmt = ieee80211_set_power_mgmt,
1647         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1648         .remain_on_channel = ieee80211_remain_on_channel,
1649         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1650         .mgmt_tx = ieee80211_mgmt_tx,
1651         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1652 };