nl80211/mac80211: Add retry and failed transmission count to station info
[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_RETRIES |
331                         STATION_INFO_TX_FAILED |
332                         STATION_INFO_TX_BITRATE;
333
334         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
335         sinfo->rx_bytes = sta->rx_bytes;
336         sinfo->tx_bytes = sta->tx_bytes;
337         sinfo->rx_packets = sta->rx_packets;
338         sinfo->tx_packets = sta->tx_packets;
339         sinfo->tx_retries = sta->tx_retry_count;
340         sinfo->tx_failed = sta->tx_retry_failed;
341
342         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
343             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
344                 sinfo->filled |= STATION_INFO_SIGNAL;
345                 sinfo->signal = (s8)sta->last_signal;
346         }
347
348         sinfo->txrate.flags = 0;
349         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
350                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
351         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
352                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
353         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
354                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
355
356         if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
357                 struct ieee80211_supported_band *sband;
358                 sband = sta->local->hw.wiphy->bands[
359                                 sta->local->hw.conf.channel->band];
360                 sinfo->txrate.legacy =
361                         sband->bitrates[sta->last_tx_rate.idx].bitrate;
362         } else
363                 sinfo->txrate.mcs = sta->last_tx_rate.idx;
364
365         if (ieee80211_vif_is_mesh(&sdata->vif)) {
366 #ifdef CONFIG_MAC80211_MESH
367                 sinfo->filled |= STATION_INFO_LLID |
368                                  STATION_INFO_PLID |
369                                  STATION_INFO_PLINK_STATE;
370
371                 sinfo->llid = le16_to_cpu(sta->llid);
372                 sinfo->plid = le16_to_cpu(sta->plid);
373                 sinfo->plink_state = sta->plink_state;
374 #endif
375         }
376 }
377
378
379 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
380                                  int idx, u8 *mac, struct station_info *sinfo)
381 {
382         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
383         struct sta_info *sta;
384         int ret = -ENOENT;
385
386         rcu_read_lock();
387
388         sta = sta_info_get_by_idx(sdata, idx);
389         if (sta) {
390                 ret = 0;
391                 memcpy(mac, sta->sta.addr, ETH_ALEN);
392                 sta_set_sinfo(sta, sinfo);
393         }
394
395         rcu_read_unlock();
396
397         return ret;
398 }
399
400 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
401                                  int idx, struct survey_info *survey)
402 {
403         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
404
405         return drv_get_survey(local, idx, survey);
406 }
407
408 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
409                                  u8 *mac, struct station_info *sinfo)
410 {
411         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
412         struct sta_info *sta;
413         int ret = -ENOENT;
414
415         rcu_read_lock();
416
417         sta = sta_info_get_bss(sdata, mac);
418         if (sta) {
419                 ret = 0;
420                 sta_set_sinfo(sta, sinfo);
421         }
422
423         rcu_read_unlock();
424
425         return ret;
426 }
427
428 /*
429  * This handles both adding a beacon and setting new beacon info
430  */
431 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
432                                    struct beacon_parameters *params)
433 {
434         struct beacon_data *new, *old;
435         int new_head_len, new_tail_len;
436         int size;
437         int err = -EINVAL;
438
439         old = sdata->u.ap.beacon;
440
441         /* head must not be zero-length */
442         if (params->head && !params->head_len)
443                 return -EINVAL;
444
445         /*
446          * This is a kludge. beacon interval should really be part
447          * of the beacon information.
448          */
449         if (params->interval &&
450             (sdata->vif.bss_conf.beacon_int != params->interval)) {
451                 sdata->vif.bss_conf.beacon_int = params->interval;
452                 ieee80211_bss_info_change_notify(sdata,
453                                                  BSS_CHANGED_BEACON_INT);
454         }
455
456         /* Need to have a beacon head if we don't have one yet */
457         if (!params->head && !old)
458                 return err;
459
460         /* sorry, no way to start beaconing without dtim period */
461         if (!params->dtim_period && !old)
462                 return err;
463
464         /* new or old head? */
465         if (params->head)
466                 new_head_len = params->head_len;
467         else
468                 new_head_len = old->head_len;
469
470         /* new or old tail? */
471         if (params->tail || !old)
472                 /* params->tail_len will be zero for !params->tail */
473                 new_tail_len = params->tail_len;
474         else
475                 new_tail_len = old->tail_len;
476
477         size = sizeof(*new) + new_head_len + new_tail_len;
478
479         new = kzalloc(size, GFP_KERNEL);
480         if (!new)
481                 return -ENOMEM;
482
483         /* start filling the new info now */
484
485         /* new or old dtim period? */
486         if (params->dtim_period)
487                 new->dtim_period = params->dtim_period;
488         else
489                 new->dtim_period = old->dtim_period;
490
491         /*
492          * pointers go into the block we allocated,
493          * memory is | beacon_data | head | tail |
494          */
495         new->head = ((u8 *) new) + sizeof(*new);
496         new->tail = new->head + new_head_len;
497         new->head_len = new_head_len;
498         new->tail_len = new_tail_len;
499
500         /* copy in head */
501         if (params->head)
502                 memcpy(new->head, params->head, new_head_len);
503         else
504                 memcpy(new->head, old->head, new_head_len);
505
506         /* copy in optional tail */
507         if (params->tail)
508                 memcpy(new->tail, params->tail, new_tail_len);
509         else
510                 if (old)
511                         memcpy(new->tail, old->tail, new_tail_len);
512
513         sdata->vif.bss_conf.dtim_period = new->dtim_period;
514
515         rcu_assign_pointer(sdata->u.ap.beacon, new);
516
517         synchronize_rcu();
518
519         kfree(old);
520
521         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
522                                                 BSS_CHANGED_BEACON);
523         return 0;
524 }
525
526 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
527                                 struct beacon_parameters *params)
528 {
529         struct ieee80211_sub_if_data *sdata;
530         struct beacon_data *old;
531
532         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
533
534         old = sdata->u.ap.beacon;
535
536         if (old)
537                 return -EALREADY;
538
539         return ieee80211_config_beacon(sdata, params);
540 }
541
542 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
543                                 struct beacon_parameters *params)
544 {
545         struct ieee80211_sub_if_data *sdata;
546         struct beacon_data *old;
547
548         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
549
550         old = sdata->u.ap.beacon;
551
552         if (!old)
553                 return -ENOENT;
554
555         return ieee80211_config_beacon(sdata, params);
556 }
557
558 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
559 {
560         struct ieee80211_sub_if_data *sdata;
561         struct beacon_data *old;
562
563         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
564
565         old = sdata->u.ap.beacon;
566
567         if (!old)
568                 return -ENOENT;
569
570         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
571         synchronize_rcu();
572         kfree(old);
573
574         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
575         return 0;
576 }
577
578 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
579 struct iapp_layer2_update {
580         u8 da[ETH_ALEN];        /* broadcast */
581         u8 sa[ETH_ALEN];        /* STA addr */
582         __be16 len;             /* 6 */
583         u8 dsap;                /* 0 */
584         u8 ssap;                /* 0 */
585         u8 control;
586         u8 xid_info[3];
587 } __packed;
588
589 static void ieee80211_send_layer2_update(struct sta_info *sta)
590 {
591         struct iapp_layer2_update *msg;
592         struct sk_buff *skb;
593
594         /* Send Level 2 Update Frame to update forwarding tables in layer 2
595          * bridge devices */
596
597         skb = dev_alloc_skb(sizeof(*msg));
598         if (!skb)
599                 return;
600         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
601
602         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
603          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
604
605         memset(msg->da, 0xff, ETH_ALEN);
606         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
607         msg->len = htons(6);
608         msg->dsap = 0;
609         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
610         msg->control = 0xaf;    /* XID response lsb.1111F101.
611                                  * F=0 (no poll command; unsolicited frame) */
612         msg->xid_info[0] = 0x81;        /* XID format identifier */
613         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
614         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
615
616         skb->dev = sta->sdata->dev;
617         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
618         memset(skb->cb, 0, sizeof(skb->cb));
619         netif_rx_ni(skb);
620 }
621
622 static void sta_apply_parameters(struct ieee80211_local *local,
623                                  struct sta_info *sta,
624                                  struct station_parameters *params)
625 {
626         unsigned long flags;
627         u32 rates;
628         int i, j;
629         struct ieee80211_supported_band *sband;
630         struct ieee80211_sub_if_data *sdata = sta->sdata;
631         u32 mask, set;
632
633         sband = local->hw.wiphy->bands[local->oper_channel->band];
634
635         spin_lock_irqsave(&sta->flaglock, flags);
636         mask = params->sta_flags_mask;
637         set = params->sta_flags_set;
638
639         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
640                 sta->flags &= ~WLAN_STA_AUTHORIZED;
641                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
642                         sta->flags |= WLAN_STA_AUTHORIZED;
643         }
644
645         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
646                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
647                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
648                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
649         }
650
651         if (mask & BIT(NL80211_STA_FLAG_WME)) {
652                 sta->flags &= ~WLAN_STA_WME;
653                 if (set & BIT(NL80211_STA_FLAG_WME))
654                         sta->flags |= WLAN_STA_WME;
655         }
656
657         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
658                 sta->flags &= ~WLAN_STA_MFP;
659                 if (set & BIT(NL80211_STA_FLAG_MFP))
660                         sta->flags |= WLAN_STA_MFP;
661         }
662         spin_unlock_irqrestore(&sta->flaglock, flags);
663
664         /*
665          * cfg80211 validates this (1-2007) and allows setting the AID
666          * only when creating a new station entry
667          */
668         if (params->aid)
669                 sta->sta.aid = params->aid;
670
671         /*
672          * FIXME: updating the following information is racy when this
673          *        function is called from ieee80211_change_station().
674          *        However, all this information should be static so
675          *        maybe we should just reject attemps to change it.
676          */
677
678         if (params->listen_interval >= 0)
679                 sta->listen_interval = params->listen_interval;
680
681         if (params->supported_rates) {
682                 rates = 0;
683
684                 for (i = 0; i < params->supported_rates_len; i++) {
685                         int rate = (params->supported_rates[i] & 0x7f) * 5;
686                         for (j = 0; j < sband->n_bitrates; j++) {
687                                 if (sband->bitrates[j].bitrate == rate)
688                                         rates |= BIT(j);
689                         }
690                 }
691                 sta->sta.supp_rates[local->oper_channel->band] = rates;
692         }
693
694         if (params->ht_capa)
695                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
696                                                   params->ht_capa,
697                                                   &sta->sta.ht_cap);
698
699         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
700                 switch (params->plink_action) {
701                 case PLINK_ACTION_OPEN:
702                         mesh_plink_open(sta);
703                         break;
704                 case PLINK_ACTION_BLOCK:
705                         mesh_plink_block(sta);
706                         break;
707                 }
708         }
709 }
710
711 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
712                                  u8 *mac, struct station_parameters *params)
713 {
714         struct ieee80211_local *local = wiphy_priv(wiphy);
715         struct sta_info *sta;
716         struct ieee80211_sub_if_data *sdata;
717         int err;
718         int layer2_update;
719
720         if (params->vlan) {
721                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
722
723                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
724                     sdata->vif.type != NL80211_IFTYPE_AP)
725                         return -EINVAL;
726         } else
727                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
728
729         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
730                 return -EINVAL;
731
732         if (is_multicast_ether_addr(mac))
733                 return -EINVAL;
734
735         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
736         if (!sta)
737                 return -ENOMEM;
738
739         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
740
741         sta_apply_parameters(local, sta, params);
742
743         rate_control_rate_init(sta);
744
745         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
746                 sdata->vif.type == NL80211_IFTYPE_AP;
747
748         err = sta_info_insert_rcu(sta);
749         if (err) {
750                 rcu_read_unlock();
751                 return err;
752         }
753
754         if (layer2_update)
755                 ieee80211_send_layer2_update(sta);
756
757         rcu_read_unlock();
758
759         return 0;
760 }
761
762 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
763                                  u8 *mac)
764 {
765         struct ieee80211_local *local = wiphy_priv(wiphy);
766         struct ieee80211_sub_if_data *sdata;
767
768         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
769
770         if (mac)
771                 return sta_info_destroy_addr_bss(sdata, mac);
772
773         sta_info_flush(local, sdata);
774         return 0;
775 }
776
777 static int ieee80211_change_station(struct wiphy *wiphy,
778                                     struct net_device *dev,
779                                     u8 *mac,
780                                     struct station_parameters *params)
781 {
782         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
783         struct ieee80211_local *local = wiphy_priv(wiphy);
784         struct sta_info *sta;
785         struct ieee80211_sub_if_data *vlansdata;
786
787         rcu_read_lock();
788
789         sta = sta_info_get_bss(sdata, mac);
790         if (!sta) {
791                 rcu_read_unlock();
792                 return -ENOENT;
793         }
794
795         if (params->vlan && params->vlan != sta->sdata->dev) {
796                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
797
798                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
799                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
800                         rcu_read_unlock();
801                         return -EINVAL;
802                 }
803
804                 if (params->vlan->ieee80211_ptr->use_4addr) {
805                         if (vlansdata->u.vlan.sta) {
806                                 rcu_read_unlock();
807                                 return -EBUSY;
808                         }
809
810                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
811                 }
812
813                 sta->sdata = vlansdata;
814                 ieee80211_send_layer2_update(sta);
815         }
816
817         sta_apply_parameters(local, sta, params);
818
819         rcu_read_unlock();
820
821         return 0;
822 }
823
824 #ifdef CONFIG_MAC80211_MESH
825 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
826                                  u8 *dst, u8 *next_hop)
827 {
828         struct ieee80211_sub_if_data *sdata;
829         struct mesh_path *mpath;
830         struct sta_info *sta;
831         int err;
832
833         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
834
835         rcu_read_lock();
836         sta = sta_info_get(sdata, next_hop);
837         if (!sta) {
838                 rcu_read_unlock();
839                 return -ENOENT;
840         }
841
842         err = mesh_path_add(dst, sdata);
843         if (err) {
844                 rcu_read_unlock();
845                 return err;
846         }
847
848         mpath = mesh_path_lookup(dst, sdata);
849         if (!mpath) {
850                 rcu_read_unlock();
851                 return -ENXIO;
852         }
853         mesh_path_fix_nexthop(mpath, sta);
854
855         rcu_read_unlock();
856         return 0;
857 }
858
859 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
860                                  u8 *dst)
861 {
862         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
863
864         if (dst)
865                 return mesh_path_del(dst, sdata);
866
867         mesh_path_flush(sdata);
868         return 0;
869 }
870
871 static int ieee80211_change_mpath(struct wiphy *wiphy,
872                                     struct net_device *dev,
873                                     u8 *dst, u8 *next_hop)
874 {
875         struct ieee80211_sub_if_data *sdata;
876         struct mesh_path *mpath;
877         struct sta_info *sta;
878
879         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
880
881         rcu_read_lock();
882
883         sta = sta_info_get(sdata, next_hop);
884         if (!sta) {
885                 rcu_read_unlock();
886                 return -ENOENT;
887         }
888
889         mpath = mesh_path_lookup(dst, sdata);
890         if (!mpath) {
891                 rcu_read_unlock();
892                 return -ENOENT;
893         }
894
895         mesh_path_fix_nexthop(mpath, sta);
896
897         rcu_read_unlock();
898         return 0;
899 }
900
901 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
902                             struct mpath_info *pinfo)
903 {
904         if (mpath->next_hop)
905                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
906         else
907                 memset(next_hop, 0, ETH_ALEN);
908
909         pinfo->generation = mesh_paths_generation;
910
911         pinfo->filled = MPATH_INFO_FRAME_QLEN |
912                         MPATH_INFO_SN |
913                         MPATH_INFO_METRIC |
914                         MPATH_INFO_EXPTIME |
915                         MPATH_INFO_DISCOVERY_TIMEOUT |
916                         MPATH_INFO_DISCOVERY_RETRIES |
917                         MPATH_INFO_FLAGS;
918
919         pinfo->frame_qlen = mpath->frame_queue.qlen;
920         pinfo->sn = mpath->sn;
921         pinfo->metric = mpath->metric;
922         if (time_before(jiffies, mpath->exp_time))
923                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
924         pinfo->discovery_timeout =
925                         jiffies_to_msecs(mpath->discovery_timeout);
926         pinfo->discovery_retries = mpath->discovery_retries;
927         pinfo->flags = 0;
928         if (mpath->flags & MESH_PATH_ACTIVE)
929                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
930         if (mpath->flags & MESH_PATH_RESOLVING)
931                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
932         if (mpath->flags & MESH_PATH_SN_VALID)
933                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
934         if (mpath->flags & MESH_PATH_FIXED)
935                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
936         if (mpath->flags & MESH_PATH_RESOLVING)
937                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
938
939         pinfo->flags = mpath->flags;
940 }
941
942 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
943                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
944
945 {
946         struct ieee80211_sub_if_data *sdata;
947         struct mesh_path *mpath;
948
949         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
950
951         rcu_read_lock();
952         mpath = mesh_path_lookup(dst, sdata);
953         if (!mpath) {
954                 rcu_read_unlock();
955                 return -ENOENT;
956         }
957         memcpy(dst, mpath->dst, ETH_ALEN);
958         mpath_set_pinfo(mpath, next_hop, pinfo);
959         rcu_read_unlock();
960         return 0;
961 }
962
963 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
964                                  int idx, u8 *dst, u8 *next_hop,
965                                  struct mpath_info *pinfo)
966 {
967         struct ieee80211_sub_if_data *sdata;
968         struct mesh_path *mpath;
969
970         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
971
972         rcu_read_lock();
973         mpath = mesh_path_lookup_by_idx(idx, sdata);
974         if (!mpath) {
975                 rcu_read_unlock();
976                 return -ENOENT;
977         }
978         memcpy(dst, mpath->dst, ETH_ALEN);
979         mpath_set_pinfo(mpath, next_hop, pinfo);
980         rcu_read_unlock();
981         return 0;
982 }
983
984 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
985                                 struct net_device *dev,
986                                 struct mesh_config *conf)
987 {
988         struct ieee80211_sub_if_data *sdata;
989         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
990
991         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
992         return 0;
993 }
994
995 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
996 {
997         return (mask >> (parm-1)) & 0x1;
998 }
999
1000 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1001                                 struct net_device *dev,
1002                                 const struct mesh_config *nconf, u32 mask)
1003 {
1004         struct mesh_config *conf;
1005         struct ieee80211_sub_if_data *sdata;
1006         struct ieee80211_if_mesh *ifmsh;
1007
1008         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1009         ifmsh = &sdata->u.mesh;
1010
1011         /* Set the config options which we are interested in setting */
1012         conf = &(sdata->u.mesh.mshcfg);
1013         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1014                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1015         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1016                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1017         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1018                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1019         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1020                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1021         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1022                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1023         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1024                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1025         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1026                 conf->auto_open_plinks = nconf->auto_open_plinks;
1027         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1028                 conf->dot11MeshHWMPmaxPREQretries =
1029                         nconf->dot11MeshHWMPmaxPREQretries;
1030         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1031                 conf->path_refresh_time = nconf->path_refresh_time;
1032         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1033                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1034         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1035                 conf->dot11MeshHWMPactivePathTimeout =
1036                         nconf->dot11MeshHWMPactivePathTimeout;
1037         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1038                 conf->dot11MeshHWMPpreqMinInterval =
1039                         nconf->dot11MeshHWMPpreqMinInterval;
1040         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1041                            mask))
1042                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1043                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1044         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1045                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1046                 ieee80211_mesh_root_setup(ifmsh);
1047         }
1048         return 0;
1049 }
1050
1051 #endif
1052
1053 static int ieee80211_change_bss(struct wiphy *wiphy,
1054                                 struct net_device *dev,
1055                                 struct bss_parameters *params)
1056 {
1057         struct ieee80211_sub_if_data *sdata;
1058         u32 changed = 0;
1059
1060         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1061
1062         if (params->use_cts_prot >= 0) {
1063                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1064                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1065         }
1066         if (params->use_short_preamble >= 0) {
1067                 sdata->vif.bss_conf.use_short_preamble =
1068                         params->use_short_preamble;
1069                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1070         }
1071
1072         if (!sdata->vif.bss_conf.use_short_slot &&
1073             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1074                 sdata->vif.bss_conf.use_short_slot = true;
1075                 changed |= BSS_CHANGED_ERP_SLOT;
1076         }
1077
1078         if (params->use_short_slot_time >= 0) {
1079                 sdata->vif.bss_conf.use_short_slot =
1080                         params->use_short_slot_time;
1081                 changed |= BSS_CHANGED_ERP_SLOT;
1082         }
1083
1084         if (params->basic_rates) {
1085                 int i, j;
1086                 u32 rates = 0;
1087                 struct ieee80211_local *local = wiphy_priv(wiphy);
1088                 struct ieee80211_supported_band *sband =
1089                         wiphy->bands[local->oper_channel->band];
1090
1091                 for (i = 0; i < params->basic_rates_len; i++) {
1092                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1093                         for (j = 0; j < sband->n_bitrates; j++) {
1094                                 if (sband->bitrates[j].bitrate == rate)
1095                                         rates |= BIT(j);
1096                         }
1097                 }
1098                 sdata->vif.bss_conf.basic_rates = rates;
1099                 changed |= BSS_CHANGED_BASIC_RATES;
1100         }
1101
1102         if (params->ap_isolate >= 0) {
1103                 if (params->ap_isolate)
1104                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1105                 else
1106                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1107         }
1108
1109         ieee80211_bss_info_change_notify(sdata, changed);
1110
1111         return 0;
1112 }
1113
1114 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1115                                     struct ieee80211_txq_params *params)
1116 {
1117         struct ieee80211_local *local = wiphy_priv(wiphy);
1118         struct ieee80211_tx_queue_params p;
1119
1120         if (!local->ops->conf_tx)
1121                 return -EOPNOTSUPP;
1122
1123         memset(&p, 0, sizeof(p));
1124         p.aifs = params->aifs;
1125         p.cw_max = params->cwmax;
1126         p.cw_min = params->cwmin;
1127         p.txop = params->txop;
1128
1129         /*
1130          * Setting tx queue params disables u-apsd because it's only
1131          * called in master mode.
1132          */
1133         p.uapsd = false;
1134
1135         if (drv_conf_tx(local, params->queue, &p)) {
1136                 wiphy_debug(local->hw.wiphy,
1137                             "failed to set TX queue parameters for queue %d\n",
1138                             params->queue);
1139                 return -EINVAL;
1140         }
1141
1142         return 0;
1143 }
1144
1145 static int ieee80211_set_channel(struct wiphy *wiphy,
1146                                  struct net_device *netdev,
1147                                  struct ieee80211_channel *chan,
1148                                  enum nl80211_channel_type channel_type)
1149 {
1150         struct ieee80211_local *local = wiphy_priv(wiphy);
1151         struct ieee80211_sub_if_data *sdata = NULL;
1152
1153         if (netdev)
1154                 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1155
1156         switch (ieee80211_get_channel_mode(local, NULL)) {
1157         case CHAN_MODE_HOPPING:
1158                 return -EBUSY;
1159         case CHAN_MODE_FIXED:
1160                 if (local->oper_channel != chan)
1161                         return -EBUSY;
1162                 if (!sdata && local->_oper_channel_type == channel_type)
1163                         return 0;
1164                 break;
1165         case CHAN_MODE_UNDEFINED:
1166                 break;
1167         }
1168
1169         local->oper_channel = chan;
1170
1171         if (!ieee80211_set_channel_type(local, sdata, channel_type))
1172                 return -EBUSY;
1173
1174         ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1175         if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1176                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1177
1178         return 0;
1179 }
1180
1181 #ifdef CONFIG_PM
1182 static int ieee80211_suspend(struct wiphy *wiphy)
1183 {
1184         return __ieee80211_suspend(wiphy_priv(wiphy));
1185 }
1186
1187 static int ieee80211_resume(struct wiphy *wiphy)
1188 {
1189         return __ieee80211_resume(wiphy_priv(wiphy));
1190 }
1191 #else
1192 #define ieee80211_suspend NULL
1193 #define ieee80211_resume NULL
1194 #endif
1195
1196 static int ieee80211_scan(struct wiphy *wiphy,
1197                           struct net_device *dev,
1198                           struct cfg80211_scan_request *req)
1199 {
1200         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1201
1202         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1203         case NL80211_IFTYPE_STATION:
1204         case NL80211_IFTYPE_ADHOC:
1205         case NL80211_IFTYPE_MESH_POINT:
1206         case NL80211_IFTYPE_P2P_CLIENT:
1207                 break;
1208         case NL80211_IFTYPE_P2P_GO:
1209                 if (sdata->local->ops->hw_scan)
1210                         break;
1211                 /* FIXME: implement NoA while scanning in software */
1212                 return -EOPNOTSUPP;
1213         case NL80211_IFTYPE_AP:
1214                 if (sdata->u.ap.beacon)
1215                         return -EOPNOTSUPP;
1216                 break;
1217         default:
1218                 return -EOPNOTSUPP;
1219         }
1220
1221         return ieee80211_request_scan(sdata, req);
1222 }
1223
1224 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1225                           struct cfg80211_auth_request *req)
1226 {
1227         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1228 }
1229
1230 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1231                            struct cfg80211_assoc_request *req)
1232 {
1233         struct ieee80211_local *local = wiphy_priv(wiphy);
1234         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1235
1236         switch (ieee80211_get_channel_mode(local, sdata)) {
1237         case CHAN_MODE_HOPPING:
1238                 return -EBUSY;
1239         case CHAN_MODE_FIXED:
1240                 if (local->oper_channel == req->bss->channel)
1241                         break;
1242                 return -EBUSY;
1243         case CHAN_MODE_UNDEFINED:
1244                 break;
1245         }
1246
1247         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1248 }
1249
1250 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1251                             struct cfg80211_deauth_request *req,
1252                             void *cookie)
1253 {
1254         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1255                                     req, cookie);
1256 }
1257
1258 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1259                               struct cfg80211_disassoc_request *req,
1260                               void *cookie)
1261 {
1262         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1263                                       req, cookie);
1264 }
1265
1266 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1267                                struct cfg80211_ibss_params *params)
1268 {
1269         struct ieee80211_local *local = wiphy_priv(wiphy);
1270         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1271
1272         switch (ieee80211_get_channel_mode(local, sdata)) {
1273         case CHAN_MODE_HOPPING:
1274                 return -EBUSY;
1275         case CHAN_MODE_FIXED:
1276                 if (!params->channel_fixed)
1277                         return -EBUSY;
1278                 if (local->oper_channel == params->channel)
1279                         break;
1280                 return -EBUSY;
1281         case CHAN_MODE_UNDEFINED:
1282                 break;
1283         }
1284
1285         return ieee80211_ibss_join(sdata, params);
1286 }
1287
1288 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1289 {
1290         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1291
1292         return ieee80211_ibss_leave(sdata);
1293 }
1294
1295 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1296 {
1297         struct ieee80211_local *local = wiphy_priv(wiphy);
1298         int err;
1299
1300         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1301                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1302
1303                 if (err)
1304                         return err;
1305         }
1306
1307         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1308                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1309
1310                 if (err)
1311                         return err;
1312         }
1313
1314         if (changed & WIPHY_PARAM_RETRY_SHORT)
1315                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1316         if (changed & WIPHY_PARAM_RETRY_LONG)
1317                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1318         if (changed &
1319             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1320                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1321
1322         return 0;
1323 }
1324
1325 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1326                                   enum nl80211_tx_power_setting type, int mbm)
1327 {
1328         struct ieee80211_local *local = wiphy_priv(wiphy);
1329         struct ieee80211_channel *chan = local->hw.conf.channel;
1330         u32 changes = 0;
1331
1332         switch (type) {
1333         case NL80211_TX_POWER_AUTOMATIC:
1334                 local->user_power_level = -1;
1335                 break;
1336         case NL80211_TX_POWER_LIMITED:
1337                 if (mbm < 0 || (mbm % 100))
1338                         return -EOPNOTSUPP;
1339                 local->user_power_level = MBM_TO_DBM(mbm);
1340                 break;
1341         case NL80211_TX_POWER_FIXED:
1342                 if (mbm < 0 || (mbm % 100))
1343                         return -EOPNOTSUPP;
1344                 /* TODO: move to cfg80211 when it knows the channel */
1345                 if (MBM_TO_DBM(mbm) > chan->max_power)
1346                         return -EINVAL;
1347                 local->user_power_level = MBM_TO_DBM(mbm);
1348                 break;
1349         }
1350
1351         ieee80211_hw_config(local, changes);
1352
1353         return 0;
1354 }
1355
1356 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1357 {
1358         struct ieee80211_local *local = wiphy_priv(wiphy);
1359
1360         *dbm = local->hw.conf.power_level;
1361
1362         return 0;
1363 }
1364
1365 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1366                                   u8 *addr)
1367 {
1368         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1369
1370         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1371
1372         return 0;
1373 }
1374
1375 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1376 {
1377         struct ieee80211_local *local = wiphy_priv(wiphy);
1378
1379         drv_rfkill_poll(local);
1380 }
1381
1382 #ifdef CONFIG_NL80211_TESTMODE
1383 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1384 {
1385         struct ieee80211_local *local = wiphy_priv(wiphy);
1386
1387         if (!local->ops->testmode_cmd)
1388                 return -EOPNOTSUPP;
1389
1390         return local->ops->testmode_cmd(&local->hw, data, len);
1391 }
1392 #endif
1393
1394 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1395                              enum ieee80211_smps_mode smps_mode)
1396 {
1397         const u8 *ap;
1398         enum ieee80211_smps_mode old_req;
1399         int err;
1400
1401         old_req = sdata->u.mgd.req_smps;
1402         sdata->u.mgd.req_smps = smps_mode;
1403
1404         if (old_req == smps_mode &&
1405             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1406                 return 0;
1407
1408         /*
1409          * If not associated, or current association is not an HT
1410          * association, there's no need to send an action frame.
1411          */
1412         if (!sdata->u.mgd.associated ||
1413             sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1414                 mutex_lock(&sdata->local->iflist_mtx);
1415                 ieee80211_recalc_smps(sdata->local);
1416                 mutex_unlock(&sdata->local->iflist_mtx);
1417                 return 0;
1418         }
1419
1420         ap = sdata->u.mgd.associated->bssid;
1421
1422         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1423                 if (sdata->u.mgd.powersave)
1424                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1425                 else
1426                         smps_mode = IEEE80211_SMPS_OFF;
1427         }
1428
1429         /* send SM PS frame to AP */
1430         err = ieee80211_send_smps_action(sdata, smps_mode,
1431                                          ap, ap);
1432         if (err)
1433                 sdata->u.mgd.req_smps = old_req;
1434
1435         return err;
1436 }
1437
1438 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1439                                     bool enabled, int timeout)
1440 {
1441         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1442         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1443
1444         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1445                 return -EOPNOTSUPP;
1446
1447         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1448                 return -EOPNOTSUPP;
1449
1450         if (enabled == sdata->u.mgd.powersave &&
1451             timeout == local->dynamic_ps_forced_timeout)
1452                 return 0;
1453
1454         sdata->u.mgd.powersave = enabled;
1455         local->dynamic_ps_forced_timeout = timeout;
1456
1457         /* no change, but if automatic follow powersave */
1458         mutex_lock(&sdata->u.mgd.mtx);
1459         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1460         mutex_unlock(&sdata->u.mgd.mtx);
1461
1462         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1463                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1464
1465         ieee80211_recalc_ps(local, -1);
1466
1467         return 0;
1468 }
1469
1470 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1471                                          struct net_device *dev,
1472                                          s32 rssi_thold, u32 rssi_hyst)
1473 {
1474         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1475         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1476         struct ieee80211_vif *vif = &sdata->vif;
1477         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1478
1479         if (rssi_thold == bss_conf->cqm_rssi_thold &&
1480             rssi_hyst == bss_conf->cqm_rssi_hyst)
1481                 return 0;
1482
1483         bss_conf->cqm_rssi_thold = rssi_thold;
1484         bss_conf->cqm_rssi_hyst = rssi_hyst;
1485
1486         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1487                 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1488                         return -EOPNOTSUPP;
1489                 return 0;
1490         }
1491
1492         /* tell the driver upon association, unless already associated */
1493         if (sdata->u.mgd.associated)
1494                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1495
1496         return 0;
1497 }
1498
1499 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1500                                       struct net_device *dev,
1501                                       const u8 *addr,
1502                                       const struct cfg80211_bitrate_mask *mask)
1503 {
1504         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1505         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1506         int i;
1507
1508         /*
1509          * This _could_ be supported by providing a hook for
1510          * drivers for this function, but at this point it
1511          * doesn't seem worth bothering.
1512          */
1513         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1514                 return -EOPNOTSUPP;
1515
1516
1517         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1518                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1519
1520         return 0;
1521 }
1522
1523 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1524                                        struct net_device *dev,
1525                                        struct ieee80211_channel *chan,
1526                                        enum nl80211_channel_type channel_type,
1527                                        unsigned int duration,
1528                                        u64 *cookie)
1529 {
1530         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1531
1532         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1533                                               duration, cookie);
1534 }
1535
1536 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1537                                               struct net_device *dev,
1538                                               u64 cookie)
1539 {
1540         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1541
1542         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1543 }
1544
1545 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1546                              struct ieee80211_channel *chan,
1547                              enum nl80211_channel_type channel_type,
1548                              bool channel_type_valid,
1549                              const u8 *buf, size_t len, u64 *cookie)
1550 {
1551         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1552         struct ieee80211_local *local = sdata->local;
1553         struct sk_buff *skb;
1554         struct sta_info *sta;
1555         const struct ieee80211_mgmt *mgmt = (void *)buf;
1556         u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1557                     IEEE80211_TX_CTL_REQ_TX_STATUS;
1558
1559         /* Check that we are on the requested channel for transmission */
1560         if (chan != local->tmp_channel &&
1561             chan != local->oper_channel)
1562                 return -EBUSY;
1563         if (channel_type_valid &&
1564             (channel_type != local->tmp_channel_type &&
1565              channel_type != local->_oper_channel_type))
1566                 return -EBUSY;
1567
1568         switch (sdata->vif.type) {
1569         case NL80211_IFTYPE_ADHOC:
1570         case NL80211_IFTYPE_AP:
1571         case NL80211_IFTYPE_AP_VLAN:
1572         case NL80211_IFTYPE_P2P_GO:
1573                 if (!ieee80211_is_action(mgmt->frame_control) ||
1574                     mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1575                         break;
1576                 rcu_read_lock();
1577                 sta = sta_info_get(sdata, mgmt->da);
1578                 rcu_read_unlock();
1579                 if (!sta)
1580                         return -ENOLINK;
1581                 break;
1582         case NL80211_IFTYPE_STATION:
1583         case NL80211_IFTYPE_P2P_CLIENT:
1584                 break;
1585         default:
1586                 return -EOPNOTSUPP;
1587         }
1588
1589         skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1590         if (!skb)
1591                 return -ENOMEM;
1592         skb_reserve(skb, local->hw.extra_tx_headroom);
1593
1594         memcpy(skb_put(skb, len), buf, len);
1595
1596         IEEE80211_SKB_CB(skb)->flags = flags;
1597
1598         skb->dev = sdata->dev;
1599         ieee80211_tx_skb(sdata, skb);
1600
1601         *cookie = (unsigned long) skb;
1602         return 0;
1603 }
1604
1605 struct cfg80211_ops mac80211_config_ops = {
1606         .add_virtual_intf = ieee80211_add_iface,
1607         .del_virtual_intf = ieee80211_del_iface,
1608         .change_virtual_intf = ieee80211_change_iface,
1609         .add_key = ieee80211_add_key,
1610         .del_key = ieee80211_del_key,
1611         .get_key = ieee80211_get_key,
1612         .set_default_key = ieee80211_config_default_key,
1613         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1614         .add_beacon = ieee80211_add_beacon,
1615         .set_beacon = ieee80211_set_beacon,
1616         .del_beacon = ieee80211_del_beacon,
1617         .add_station = ieee80211_add_station,
1618         .del_station = ieee80211_del_station,
1619         .change_station = ieee80211_change_station,
1620         .get_station = ieee80211_get_station,
1621         .dump_station = ieee80211_dump_station,
1622         .dump_survey = ieee80211_dump_survey,
1623 #ifdef CONFIG_MAC80211_MESH
1624         .add_mpath = ieee80211_add_mpath,
1625         .del_mpath = ieee80211_del_mpath,
1626         .change_mpath = ieee80211_change_mpath,
1627         .get_mpath = ieee80211_get_mpath,
1628         .dump_mpath = ieee80211_dump_mpath,
1629         .set_mesh_params = ieee80211_set_mesh_params,
1630         .get_mesh_params = ieee80211_get_mesh_params,
1631 #endif
1632         .change_bss = ieee80211_change_bss,
1633         .set_txq_params = ieee80211_set_txq_params,
1634         .set_channel = ieee80211_set_channel,
1635         .suspend = ieee80211_suspend,
1636         .resume = ieee80211_resume,
1637         .scan = ieee80211_scan,
1638         .auth = ieee80211_auth,
1639         .assoc = ieee80211_assoc,
1640         .deauth = ieee80211_deauth,
1641         .disassoc = ieee80211_disassoc,
1642         .join_ibss = ieee80211_join_ibss,
1643         .leave_ibss = ieee80211_leave_ibss,
1644         .set_wiphy_params = ieee80211_set_wiphy_params,
1645         .set_tx_power = ieee80211_set_tx_power,
1646         .get_tx_power = ieee80211_get_tx_power,
1647         .set_wds_peer = ieee80211_set_wds_peer,
1648         .rfkill_poll = ieee80211_rfkill_poll,
1649         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1650         .set_power_mgmt = ieee80211_set_power_mgmt,
1651         .set_bitrate_mask = ieee80211_set_bitrate_mask,
1652         .remain_on_channel = ieee80211_remain_on_channel,
1653         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1654         .mgmt_tx = ieee80211_mgmt_tx,
1655         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1656 };