mac80211: implement support for cfg80211_ops->{get,set}_ringparam
[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 struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name,
23                                               enum nl80211_iftype type,
24                                               u32 *flags,
25                                               struct vif_params *params)
26 {
27         struct ieee80211_local *local = wiphy_priv(wiphy);
28         struct net_device *dev;
29         struct ieee80211_sub_if_data *sdata;
30         int err;
31
32         err = ieee80211_if_add(local, name, &dev, type, params);
33         if (err)
34                 return ERR_PTR(err);
35
36         if (type == NL80211_IFTYPE_MONITOR && flags) {
37                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
38                 sdata->u.mntr_flags = *flags;
39         }
40
41         return dev;
42 }
43
44 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
45 {
46         ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
47
48         return 0;
49 }
50
51 static int ieee80211_change_iface(struct wiphy *wiphy,
52                                   struct net_device *dev,
53                                   enum nl80211_iftype type, u32 *flags,
54                                   struct vif_params *params)
55 {
56         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
57         int ret;
58
59         ret = ieee80211_if_change_type(sdata, type);
60         if (ret)
61                 return ret;
62
63         if (type == NL80211_IFTYPE_AP_VLAN &&
64             params && params->use_4addr == 0)
65                 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
66         else if (type == NL80211_IFTYPE_STATION &&
67                  params && params->use_4addr >= 0)
68                 sdata->u.mgd.use_4addr = params->use_4addr;
69
70         if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
71                 struct ieee80211_local *local = sdata->local;
72
73                 if (ieee80211_sdata_running(sdata)) {
74                         /*
75                          * Prohibit MONITOR_FLAG_COOK_FRAMES to be
76                          * changed while the interface is up.
77                          * Else we would need to add a lot of cruft
78                          * to update everything:
79                          *      cooked_mntrs, monitor and all fif_* counters
80                          *      reconfigure hardware
81                          */
82                         if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
83                             (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
84                                 return -EBUSY;
85
86                         ieee80211_adjust_monitor_flags(sdata, -1);
87                         sdata->u.mntr_flags = *flags;
88                         ieee80211_adjust_monitor_flags(sdata, 1);
89
90                         ieee80211_configure_filter(local);
91                 } else {
92                         /*
93                          * Because the interface is down, ieee80211_do_stop
94                          * and ieee80211_do_open take care of "everything"
95                          * mentioned in the comment above.
96                          */
97                         sdata->u.mntr_flags = *flags;
98                 }
99         }
100
101         return 0;
102 }
103
104 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
105                              u8 key_idx, bool pairwise, const u8 *mac_addr,
106                              struct key_params *params)
107 {
108         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
109         struct sta_info *sta = NULL;
110         struct ieee80211_key *key;
111         int err;
112
113         if (!ieee80211_sdata_running(sdata))
114                 return -ENETDOWN;
115
116         /* reject WEP and TKIP keys if WEP failed to initialize */
117         switch (params->cipher) {
118         case WLAN_CIPHER_SUITE_WEP40:
119         case WLAN_CIPHER_SUITE_TKIP:
120         case WLAN_CIPHER_SUITE_WEP104:
121                 if (IS_ERR(sdata->local->wep_tx_tfm))
122                         return -EINVAL;
123                 break;
124         default:
125                 break;
126         }
127
128         key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
129                                   params->key, params->seq_len, params->seq);
130         if (IS_ERR(key))
131                 return PTR_ERR(key);
132
133         if (pairwise)
134                 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
135
136         mutex_lock(&sdata->local->sta_mtx);
137
138         if (mac_addr) {
139                 sta = sta_info_get_bss(sdata, mac_addr);
140                 if (!sta) {
141                         ieee80211_key_free(sdata->local, key);
142                         err = -ENOENT;
143                         goto out_unlock;
144                 }
145         }
146
147         err = ieee80211_key_link(key, sdata, sta);
148         if (err)
149                 ieee80211_key_free(sdata->local, key);
150
151  out_unlock:
152         mutex_unlock(&sdata->local->sta_mtx);
153
154         return err;
155 }
156
157 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
158                              u8 key_idx, bool pairwise, const u8 *mac_addr)
159 {
160         struct ieee80211_sub_if_data *sdata;
161         struct sta_info *sta;
162         int ret;
163
164         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
165
166         mutex_lock(&sdata->local->sta_mtx);
167
168         if (mac_addr) {
169                 ret = -ENOENT;
170
171                 sta = sta_info_get_bss(sdata, mac_addr);
172                 if (!sta)
173                         goto out_unlock;
174
175                 if (pairwise) {
176                         if (sta->ptk) {
177                                 ieee80211_key_free(sdata->local, sta->ptk);
178                                 ret = 0;
179                         }
180                 } else {
181                         if (sta->gtk[key_idx]) {
182                                 ieee80211_key_free(sdata->local,
183                                                    sta->gtk[key_idx]);
184                                 ret = 0;
185                         }
186                 }
187
188                 goto out_unlock;
189         }
190
191         if (!sdata->keys[key_idx]) {
192                 ret = -ENOENT;
193                 goto out_unlock;
194         }
195
196         ieee80211_key_free(sdata->local, sdata->keys[key_idx]);
197         WARN_ON(sdata->keys[key_idx]);
198
199         ret = 0;
200  out_unlock:
201         mutex_unlock(&sdata->local->sta_mtx);
202
203         return ret;
204 }
205
206 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
207                              u8 key_idx, bool pairwise, const u8 *mac_addr,
208                              void *cookie,
209                              void (*callback)(void *cookie,
210                                               struct key_params *params))
211 {
212         struct ieee80211_sub_if_data *sdata;
213         struct sta_info *sta = NULL;
214         u8 seq[6] = {0};
215         struct key_params params;
216         struct ieee80211_key *key = NULL;
217         u32 iv32;
218         u16 iv16;
219         int err = -ENOENT;
220
221         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
222
223         rcu_read_lock();
224
225         if (mac_addr) {
226                 sta = sta_info_get_bss(sdata, mac_addr);
227                 if (!sta)
228                         goto out;
229
230                 if (pairwise)
231                         key = sta->ptk;
232                 else if (key_idx < NUM_DEFAULT_KEYS)
233                         key = sta->gtk[key_idx];
234         } else
235                 key = sdata->keys[key_idx];
236
237         if (!key)
238                 goto out;
239
240         memset(&params, 0, sizeof(params));
241
242         params.cipher = key->conf.cipher;
243
244         switch (key->conf.cipher) {
245         case WLAN_CIPHER_SUITE_TKIP:
246                 iv32 = key->u.tkip.tx.iv32;
247                 iv16 = key->u.tkip.tx.iv16;
248
249                 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
250                         drv_get_tkip_seq(sdata->local,
251                                          key->conf.hw_key_idx,
252                                          &iv32, &iv16);
253
254                 seq[0] = iv16 & 0xff;
255                 seq[1] = (iv16 >> 8) & 0xff;
256                 seq[2] = iv32 & 0xff;
257                 seq[3] = (iv32 >> 8) & 0xff;
258                 seq[4] = (iv32 >> 16) & 0xff;
259                 seq[5] = (iv32 >> 24) & 0xff;
260                 params.seq = seq;
261                 params.seq_len = 6;
262                 break;
263         case WLAN_CIPHER_SUITE_CCMP:
264                 seq[0] = key->u.ccmp.tx_pn[5];
265                 seq[1] = key->u.ccmp.tx_pn[4];
266                 seq[2] = key->u.ccmp.tx_pn[3];
267                 seq[3] = key->u.ccmp.tx_pn[2];
268                 seq[4] = key->u.ccmp.tx_pn[1];
269                 seq[5] = key->u.ccmp.tx_pn[0];
270                 params.seq = seq;
271                 params.seq_len = 6;
272                 break;
273         case WLAN_CIPHER_SUITE_AES_CMAC:
274                 seq[0] = key->u.aes_cmac.tx_pn[5];
275                 seq[1] = key->u.aes_cmac.tx_pn[4];
276                 seq[2] = key->u.aes_cmac.tx_pn[3];
277                 seq[3] = key->u.aes_cmac.tx_pn[2];
278                 seq[4] = key->u.aes_cmac.tx_pn[1];
279                 seq[5] = key->u.aes_cmac.tx_pn[0];
280                 params.seq = seq;
281                 params.seq_len = 6;
282                 break;
283         }
284
285         params.key = key->conf.key;
286         params.key_len = key->conf.keylen;
287
288         callback(cookie, &params);
289         err = 0;
290
291  out:
292         rcu_read_unlock();
293         return err;
294 }
295
296 static int ieee80211_config_default_key(struct wiphy *wiphy,
297                                         struct net_device *dev,
298                                         u8 key_idx, bool uni,
299                                         bool multi)
300 {
301         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
302
303         ieee80211_set_default_key(sdata, key_idx, uni, multi);
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 rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
320 {
321         if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
322                 struct ieee80211_supported_band *sband;
323                 sband = sta->local->hw.wiphy->bands[
324                                 sta->local->hw.conf.channel->band];
325                 rate->legacy = sband->bitrates[idx].bitrate;
326         } else
327                 rate->mcs = idx;
328 }
329
330 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
331 {
332         struct ieee80211_sub_if_data *sdata = sta->sdata;
333
334         sinfo->generation = sdata->local->sta_generation;
335
336         sinfo->filled = STATION_INFO_INACTIVE_TIME |
337                         STATION_INFO_RX_BYTES |
338                         STATION_INFO_TX_BYTES |
339                         STATION_INFO_RX_PACKETS |
340                         STATION_INFO_TX_PACKETS |
341                         STATION_INFO_TX_RETRIES |
342                         STATION_INFO_TX_FAILED |
343                         STATION_INFO_TX_BITRATE |
344                         STATION_INFO_RX_BITRATE |
345                         STATION_INFO_RX_DROP_MISC;
346
347         sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
348         sinfo->rx_bytes = sta->rx_bytes;
349         sinfo->tx_bytes = sta->tx_bytes;
350         sinfo->rx_packets = sta->rx_packets;
351         sinfo->tx_packets = sta->tx_packets;
352         sinfo->tx_retries = sta->tx_retry_count;
353         sinfo->tx_failed = sta->tx_retry_failed;
354         sinfo->rx_dropped_misc = sta->rx_dropped;
355
356         if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
357             (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
358                 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
359                 sinfo->signal = (s8)sta->last_signal;
360                 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
361         }
362
363         sinfo->txrate.flags = 0;
364         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
365                 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
366         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
367                 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
368         if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
369                 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
370         rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx);
371
372         sinfo->rxrate.flags = 0;
373         if (sta->last_rx_rate_flag & RX_FLAG_HT)
374                 sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
375         if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
376                 sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
377         if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
378                 sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
379         rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
380
381         if (ieee80211_vif_is_mesh(&sdata->vif)) {
382 #ifdef CONFIG_MAC80211_MESH
383                 sinfo->filled |= STATION_INFO_LLID |
384                                  STATION_INFO_PLID |
385                                  STATION_INFO_PLINK_STATE;
386
387                 sinfo->llid = le16_to_cpu(sta->llid);
388                 sinfo->plid = le16_to_cpu(sta->plid);
389                 sinfo->plink_state = sta->plink_state;
390 #endif
391         }
392 }
393
394
395 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
396                                  int idx, u8 *mac, struct station_info *sinfo)
397 {
398         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
399         struct sta_info *sta;
400         int ret = -ENOENT;
401
402         rcu_read_lock();
403
404         sta = sta_info_get_by_idx(sdata, idx);
405         if (sta) {
406                 ret = 0;
407                 memcpy(mac, sta->sta.addr, ETH_ALEN);
408                 sta_set_sinfo(sta, sinfo);
409         }
410
411         rcu_read_unlock();
412
413         return ret;
414 }
415
416 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
417                                  int idx, struct survey_info *survey)
418 {
419         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
420
421         return drv_get_survey(local, idx, survey);
422 }
423
424 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
425                                  u8 *mac, struct station_info *sinfo)
426 {
427         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
428         struct sta_info *sta;
429         int ret = -ENOENT;
430
431         rcu_read_lock();
432
433         sta = sta_info_get_bss(sdata, mac);
434         if (sta) {
435                 ret = 0;
436                 sta_set_sinfo(sta, sinfo);
437         }
438
439         rcu_read_unlock();
440
441         return ret;
442 }
443
444 /*
445  * This handles both adding a beacon and setting new beacon info
446  */
447 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
448                                    struct beacon_parameters *params)
449 {
450         struct beacon_data *new, *old;
451         int new_head_len, new_tail_len;
452         int size;
453         int err = -EINVAL;
454
455         old = sdata->u.ap.beacon;
456
457         /* head must not be zero-length */
458         if (params->head && !params->head_len)
459                 return -EINVAL;
460
461         /*
462          * This is a kludge. beacon interval should really be part
463          * of the beacon information.
464          */
465         if (params->interval &&
466             (sdata->vif.bss_conf.beacon_int != params->interval)) {
467                 sdata->vif.bss_conf.beacon_int = params->interval;
468                 ieee80211_bss_info_change_notify(sdata,
469                                                  BSS_CHANGED_BEACON_INT);
470         }
471
472         /* Need to have a beacon head if we don't have one yet */
473         if (!params->head && !old)
474                 return err;
475
476         /* sorry, no way to start beaconing without dtim period */
477         if (!params->dtim_period && !old)
478                 return err;
479
480         /* new or old head? */
481         if (params->head)
482                 new_head_len = params->head_len;
483         else
484                 new_head_len = old->head_len;
485
486         /* new or old tail? */
487         if (params->tail || !old)
488                 /* params->tail_len will be zero for !params->tail */
489                 new_tail_len = params->tail_len;
490         else
491                 new_tail_len = old->tail_len;
492
493         size = sizeof(*new) + new_head_len + new_tail_len;
494
495         new = kzalloc(size, GFP_KERNEL);
496         if (!new)
497                 return -ENOMEM;
498
499         /* start filling the new info now */
500
501         /* new or old dtim period? */
502         if (params->dtim_period)
503                 new->dtim_period = params->dtim_period;
504         else
505                 new->dtim_period = old->dtim_period;
506
507         /*
508          * pointers go into the block we allocated,
509          * memory is | beacon_data | head | tail |
510          */
511         new->head = ((u8 *) new) + sizeof(*new);
512         new->tail = new->head + new_head_len;
513         new->head_len = new_head_len;
514         new->tail_len = new_tail_len;
515
516         /* copy in head */
517         if (params->head)
518                 memcpy(new->head, params->head, new_head_len);
519         else
520                 memcpy(new->head, old->head, new_head_len);
521
522         /* copy in optional tail */
523         if (params->tail)
524                 memcpy(new->tail, params->tail, new_tail_len);
525         else
526                 if (old)
527                         memcpy(new->tail, old->tail, new_tail_len);
528
529         sdata->vif.bss_conf.dtim_period = new->dtim_period;
530
531         rcu_assign_pointer(sdata->u.ap.beacon, new);
532
533         synchronize_rcu();
534
535         kfree(old);
536
537         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
538                                                 BSS_CHANGED_BEACON);
539         return 0;
540 }
541
542 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
543                                 struct beacon_parameters *params)
544 {
545         struct ieee80211_sub_if_data *sdata;
546         struct beacon_data *old;
547
548         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
549
550         old = sdata->u.ap.beacon;
551
552         if (old)
553                 return -EALREADY;
554
555         return ieee80211_config_beacon(sdata, params);
556 }
557
558 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
559                                 struct beacon_parameters *params)
560 {
561         struct ieee80211_sub_if_data *sdata;
562         struct beacon_data *old;
563
564         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
565
566         old = sdata->u.ap.beacon;
567
568         if (!old)
569                 return -ENOENT;
570
571         return ieee80211_config_beacon(sdata, params);
572 }
573
574 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
575 {
576         struct ieee80211_sub_if_data *sdata;
577         struct beacon_data *old;
578
579         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
580
581         old = sdata->u.ap.beacon;
582
583         if (!old)
584                 return -ENOENT;
585
586         rcu_assign_pointer(sdata->u.ap.beacon, NULL);
587         synchronize_rcu();
588         kfree(old);
589
590         ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
591         return 0;
592 }
593
594 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
595 struct iapp_layer2_update {
596         u8 da[ETH_ALEN];        /* broadcast */
597         u8 sa[ETH_ALEN];        /* STA addr */
598         __be16 len;             /* 6 */
599         u8 dsap;                /* 0 */
600         u8 ssap;                /* 0 */
601         u8 control;
602         u8 xid_info[3];
603 } __packed;
604
605 static void ieee80211_send_layer2_update(struct sta_info *sta)
606 {
607         struct iapp_layer2_update *msg;
608         struct sk_buff *skb;
609
610         /* Send Level 2 Update Frame to update forwarding tables in layer 2
611          * bridge devices */
612
613         skb = dev_alloc_skb(sizeof(*msg));
614         if (!skb)
615                 return;
616         msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
617
618         /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
619          * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
620
621         memset(msg->da, 0xff, ETH_ALEN);
622         memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
623         msg->len = htons(6);
624         msg->dsap = 0;
625         msg->ssap = 0x01;       /* NULL LSAP, CR Bit: Response */
626         msg->control = 0xaf;    /* XID response lsb.1111F101.
627                                  * F=0 (no poll command; unsolicited frame) */
628         msg->xid_info[0] = 0x81;        /* XID format identifier */
629         msg->xid_info[1] = 1;   /* LLC types/classes: Type 1 LLC */
630         msg->xid_info[2] = 0;   /* XID sender's receive window size (RW) */
631
632         skb->dev = sta->sdata->dev;
633         skb->protocol = eth_type_trans(skb, sta->sdata->dev);
634         memset(skb->cb, 0, sizeof(skb->cb));
635         netif_rx_ni(skb);
636 }
637
638 static void sta_apply_parameters(struct ieee80211_local *local,
639                                  struct sta_info *sta,
640                                  struct station_parameters *params)
641 {
642         unsigned long flags;
643         u32 rates;
644         int i, j;
645         struct ieee80211_supported_band *sband;
646         struct ieee80211_sub_if_data *sdata = sta->sdata;
647         u32 mask, set;
648
649         sband = local->hw.wiphy->bands[local->oper_channel->band];
650
651         spin_lock_irqsave(&sta->flaglock, flags);
652         mask = params->sta_flags_mask;
653         set = params->sta_flags_set;
654
655         if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
656                 sta->flags &= ~WLAN_STA_AUTHORIZED;
657                 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
658                         sta->flags |= WLAN_STA_AUTHORIZED;
659         }
660
661         if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
662                 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
663                 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
664                         sta->flags |= WLAN_STA_SHORT_PREAMBLE;
665         }
666
667         if (mask & BIT(NL80211_STA_FLAG_WME)) {
668                 sta->flags &= ~WLAN_STA_WME;
669                 if (set & BIT(NL80211_STA_FLAG_WME))
670                         sta->flags |= WLAN_STA_WME;
671         }
672
673         if (mask & BIT(NL80211_STA_FLAG_MFP)) {
674                 sta->flags &= ~WLAN_STA_MFP;
675                 if (set & BIT(NL80211_STA_FLAG_MFP))
676                         sta->flags |= WLAN_STA_MFP;
677         }
678         spin_unlock_irqrestore(&sta->flaglock, flags);
679
680         /*
681          * cfg80211 validates this (1-2007) and allows setting the AID
682          * only when creating a new station entry
683          */
684         if (params->aid)
685                 sta->sta.aid = params->aid;
686
687         /*
688          * FIXME: updating the following information is racy when this
689          *        function is called from ieee80211_change_station().
690          *        However, all this information should be static so
691          *        maybe we should just reject attemps to change it.
692          */
693
694         if (params->listen_interval >= 0)
695                 sta->listen_interval = params->listen_interval;
696
697         if (params->supported_rates) {
698                 rates = 0;
699
700                 for (i = 0; i < params->supported_rates_len; i++) {
701                         int rate = (params->supported_rates[i] & 0x7f) * 5;
702                         for (j = 0; j < sband->n_bitrates; j++) {
703                                 if (sband->bitrates[j].bitrate == rate)
704                                         rates |= BIT(j);
705                         }
706                 }
707                 sta->sta.supp_rates[local->oper_channel->band] = rates;
708         }
709
710         if (params->ht_capa)
711                 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
712                                                   params->ht_capa,
713                                                   &sta->sta.ht_cap);
714
715         if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
716                 switch (params->plink_action) {
717                 case PLINK_ACTION_OPEN:
718                         mesh_plink_open(sta);
719                         break;
720                 case PLINK_ACTION_BLOCK:
721                         mesh_plink_block(sta);
722                         break;
723                 }
724         }
725 }
726
727 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
728                                  u8 *mac, struct station_parameters *params)
729 {
730         struct ieee80211_local *local = wiphy_priv(wiphy);
731         struct sta_info *sta;
732         struct ieee80211_sub_if_data *sdata;
733         int err;
734         int layer2_update;
735
736         if (params->vlan) {
737                 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
738
739                 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
740                     sdata->vif.type != NL80211_IFTYPE_AP)
741                         return -EINVAL;
742         } else
743                 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
744
745         if (compare_ether_addr(mac, sdata->vif.addr) == 0)
746                 return -EINVAL;
747
748         if (is_multicast_ether_addr(mac))
749                 return -EINVAL;
750
751         sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
752         if (!sta)
753                 return -ENOMEM;
754
755         sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
756
757         sta_apply_parameters(local, sta, params);
758
759         rate_control_rate_init(sta);
760
761         layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
762                 sdata->vif.type == NL80211_IFTYPE_AP;
763
764         err = sta_info_insert_rcu(sta);
765         if (err) {
766                 rcu_read_unlock();
767                 return err;
768         }
769
770         if (layer2_update)
771                 ieee80211_send_layer2_update(sta);
772
773         rcu_read_unlock();
774
775         return 0;
776 }
777
778 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
779                                  u8 *mac)
780 {
781         struct ieee80211_local *local = wiphy_priv(wiphy);
782         struct ieee80211_sub_if_data *sdata;
783
784         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
785
786         if (mac)
787                 return sta_info_destroy_addr_bss(sdata, mac);
788
789         sta_info_flush(local, sdata);
790         return 0;
791 }
792
793 static int ieee80211_change_station(struct wiphy *wiphy,
794                                     struct net_device *dev,
795                                     u8 *mac,
796                                     struct station_parameters *params)
797 {
798         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
799         struct ieee80211_local *local = wiphy_priv(wiphy);
800         struct sta_info *sta;
801         struct ieee80211_sub_if_data *vlansdata;
802
803         rcu_read_lock();
804
805         sta = sta_info_get_bss(sdata, mac);
806         if (!sta) {
807                 rcu_read_unlock();
808                 return -ENOENT;
809         }
810
811         if (params->vlan && params->vlan != sta->sdata->dev) {
812                 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
813
814                 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
815                     vlansdata->vif.type != NL80211_IFTYPE_AP) {
816                         rcu_read_unlock();
817                         return -EINVAL;
818                 }
819
820                 if (params->vlan->ieee80211_ptr->use_4addr) {
821                         if (vlansdata->u.vlan.sta) {
822                                 rcu_read_unlock();
823                                 return -EBUSY;
824                         }
825
826                         rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
827                 }
828
829                 sta->sdata = vlansdata;
830                 ieee80211_send_layer2_update(sta);
831         }
832
833         sta_apply_parameters(local, sta, params);
834
835         rcu_read_unlock();
836
837         if (sdata->vif.type == NL80211_IFTYPE_STATION &&
838             params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
839                 ieee80211_recalc_ps(local, -1);
840
841         return 0;
842 }
843
844 #ifdef CONFIG_MAC80211_MESH
845 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
846                                  u8 *dst, u8 *next_hop)
847 {
848         struct ieee80211_sub_if_data *sdata;
849         struct mesh_path *mpath;
850         struct sta_info *sta;
851         int err;
852
853         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
854
855         rcu_read_lock();
856         sta = sta_info_get(sdata, next_hop);
857         if (!sta) {
858                 rcu_read_unlock();
859                 return -ENOENT;
860         }
861
862         err = mesh_path_add(dst, sdata);
863         if (err) {
864                 rcu_read_unlock();
865                 return err;
866         }
867
868         mpath = mesh_path_lookup(dst, sdata);
869         if (!mpath) {
870                 rcu_read_unlock();
871                 return -ENXIO;
872         }
873         mesh_path_fix_nexthop(mpath, sta);
874
875         rcu_read_unlock();
876         return 0;
877 }
878
879 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
880                                  u8 *dst)
881 {
882         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
883
884         if (dst)
885                 return mesh_path_del(dst, sdata);
886
887         mesh_path_flush(sdata);
888         return 0;
889 }
890
891 static int ieee80211_change_mpath(struct wiphy *wiphy,
892                                     struct net_device *dev,
893                                     u8 *dst, u8 *next_hop)
894 {
895         struct ieee80211_sub_if_data *sdata;
896         struct mesh_path *mpath;
897         struct sta_info *sta;
898
899         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
900
901         rcu_read_lock();
902
903         sta = sta_info_get(sdata, next_hop);
904         if (!sta) {
905                 rcu_read_unlock();
906                 return -ENOENT;
907         }
908
909         mpath = mesh_path_lookup(dst, sdata);
910         if (!mpath) {
911                 rcu_read_unlock();
912                 return -ENOENT;
913         }
914
915         mesh_path_fix_nexthop(mpath, sta);
916
917         rcu_read_unlock();
918         return 0;
919 }
920
921 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
922                             struct mpath_info *pinfo)
923 {
924         if (mpath->next_hop)
925                 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
926         else
927                 memset(next_hop, 0, ETH_ALEN);
928
929         pinfo->generation = mesh_paths_generation;
930
931         pinfo->filled = MPATH_INFO_FRAME_QLEN |
932                         MPATH_INFO_SN |
933                         MPATH_INFO_METRIC |
934                         MPATH_INFO_EXPTIME |
935                         MPATH_INFO_DISCOVERY_TIMEOUT |
936                         MPATH_INFO_DISCOVERY_RETRIES |
937                         MPATH_INFO_FLAGS;
938
939         pinfo->frame_qlen = mpath->frame_queue.qlen;
940         pinfo->sn = mpath->sn;
941         pinfo->metric = mpath->metric;
942         if (time_before(jiffies, mpath->exp_time))
943                 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
944         pinfo->discovery_timeout =
945                         jiffies_to_msecs(mpath->discovery_timeout);
946         pinfo->discovery_retries = mpath->discovery_retries;
947         pinfo->flags = 0;
948         if (mpath->flags & MESH_PATH_ACTIVE)
949                 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
950         if (mpath->flags & MESH_PATH_RESOLVING)
951                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
952         if (mpath->flags & MESH_PATH_SN_VALID)
953                 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
954         if (mpath->flags & MESH_PATH_FIXED)
955                 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
956         if (mpath->flags & MESH_PATH_RESOLVING)
957                 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
958
959         pinfo->flags = mpath->flags;
960 }
961
962 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
963                                u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
964
965 {
966         struct ieee80211_sub_if_data *sdata;
967         struct mesh_path *mpath;
968
969         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
970
971         rcu_read_lock();
972         mpath = mesh_path_lookup(dst, sdata);
973         if (!mpath) {
974                 rcu_read_unlock();
975                 return -ENOENT;
976         }
977         memcpy(dst, mpath->dst, ETH_ALEN);
978         mpath_set_pinfo(mpath, next_hop, pinfo);
979         rcu_read_unlock();
980         return 0;
981 }
982
983 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
984                                  int idx, u8 *dst, u8 *next_hop,
985                                  struct mpath_info *pinfo)
986 {
987         struct ieee80211_sub_if_data *sdata;
988         struct mesh_path *mpath;
989
990         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
991
992         rcu_read_lock();
993         mpath = mesh_path_lookup_by_idx(idx, sdata);
994         if (!mpath) {
995                 rcu_read_unlock();
996                 return -ENOENT;
997         }
998         memcpy(dst, mpath->dst, ETH_ALEN);
999         mpath_set_pinfo(mpath, next_hop, pinfo);
1000         rcu_read_unlock();
1001         return 0;
1002 }
1003
1004 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1005                                 struct net_device *dev,
1006                                 struct mesh_config *conf)
1007 {
1008         struct ieee80211_sub_if_data *sdata;
1009         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1010
1011         memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1012         return 0;
1013 }
1014
1015 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1016 {
1017         return (mask >> (parm-1)) & 0x1;
1018 }
1019
1020 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1021                 const struct mesh_setup *setup)
1022 {
1023         u8 *new_ie;
1024         const u8 *old_ie;
1025
1026         /* first allocate the new vendor information element */
1027         new_ie = NULL;
1028         old_ie = ifmsh->vendor_ie;
1029
1030         ifmsh->vendor_ie_len = setup->vendor_ie_len;
1031         if (setup->vendor_ie_len) {
1032                 new_ie = kmemdup(setup->vendor_ie, setup->vendor_ie_len,
1033                                 GFP_KERNEL);
1034                 if (!new_ie)
1035                         return -ENOMEM;
1036         }
1037
1038         /* now copy the rest of the setup parameters */
1039         ifmsh->mesh_id_len = setup->mesh_id_len;
1040         memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1041         ifmsh->mesh_pp_id = setup->path_sel_proto;
1042         ifmsh->mesh_pm_id = setup->path_metric;
1043         ifmsh->vendor_ie = new_ie;
1044
1045         kfree(old_ie);
1046
1047         return 0;
1048 }
1049
1050 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1051                                         struct net_device *dev, u32 mask,
1052                                         const struct mesh_config *nconf)
1053 {
1054         struct mesh_config *conf;
1055         struct ieee80211_sub_if_data *sdata;
1056         struct ieee80211_if_mesh *ifmsh;
1057
1058         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1059         ifmsh = &sdata->u.mesh;
1060
1061         /* Set the config options which we are interested in setting */
1062         conf = &(sdata->u.mesh.mshcfg);
1063         if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1064                 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1065         if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1066                 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1067         if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1068                 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1069         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1070                 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1071         if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1072                 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1073         if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1074                 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1075         if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1076                 conf->dot11MeshTTL = nconf->element_ttl;
1077         if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1078                 conf->auto_open_plinks = nconf->auto_open_plinks;
1079         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1080                 conf->dot11MeshHWMPmaxPREQretries =
1081                         nconf->dot11MeshHWMPmaxPREQretries;
1082         if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1083                 conf->path_refresh_time = nconf->path_refresh_time;
1084         if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1085                 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1086         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1087                 conf->dot11MeshHWMPactivePathTimeout =
1088                         nconf->dot11MeshHWMPactivePathTimeout;
1089         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1090                 conf->dot11MeshHWMPpreqMinInterval =
1091                         nconf->dot11MeshHWMPpreqMinInterval;
1092         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1093                            mask))
1094                 conf->dot11MeshHWMPnetDiameterTraversalTime =
1095                         nconf->dot11MeshHWMPnetDiameterTraversalTime;
1096         if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1097                 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1098                 ieee80211_mesh_root_setup(ifmsh);
1099         }
1100         return 0;
1101 }
1102
1103 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1104                                const struct mesh_config *conf,
1105                                const struct mesh_setup *setup)
1106 {
1107         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1108         struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1109         int err;
1110
1111         memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1112         err = copy_mesh_setup(ifmsh, setup);
1113         if (err)
1114                 return err;
1115         ieee80211_start_mesh(sdata);
1116
1117         return 0;
1118 }
1119
1120 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1121 {
1122         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1123
1124         ieee80211_stop_mesh(sdata);
1125
1126         return 0;
1127 }
1128 #endif
1129
1130 static int ieee80211_change_bss(struct wiphy *wiphy,
1131                                 struct net_device *dev,
1132                                 struct bss_parameters *params)
1133 {
1134         struct ieee80211_sub_if_data *sdata;
1135         u32 changed = 0;
1136
1137         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1138
1139         if (params->use_cts_prot >= 0) {
1140                 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1141                 changed |= BSS_CHANGED_ERP_CTS_PROT;
1142         }
1143         if (params->use_short_preamble >= 0) {
1144                 sdata->vif.bss_conf.use_short_preamble =
1145                         params->use_short_preamble;
1146                 changed |= BSS_CHANGED_ERP_PREAMBLE;
1147         }
1148
1149         if (!sdata->vif.bss_conf.use_short_slot &&
1150             sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1151                 sdata->vif.bss_conf.use_short_slot = true;
1152                 changed |= BSS_CHANGED_ERP_SLOT;
1153         }
1154
1155         if (params->use_short_slot_time >= 0) {
1156                 sdata->vif.bss_conf.use_short_slot =
1157                         params->use_short_slot_time;
1158                 changed |= BSS_CHANGED_ERP_SLOT;
1159         }
1160
1161         if (params->basic_rates) {
1162                 int i, j;
1163                 u32 rates = 0;
1164                 struct ieee80211_local *local = wiphy_priv(wiphy);
1165                 struct ieee80211_supported_band *sband =
1166                         wiphy->bands[local->oper_channel->band];
1167
1168                 for (i = 0; i < params->basic_rates_len; i++) {
1169                         int rate = (params->basic_rates[i] & 0x7f) * 5;
1170                         for (j = 0; j < sband->n_bitrates; j++) {
1171                                 if (sband->bitrates[j].bitrate == rate)
1172                                         rates |= BIT(j);
1173                         }
1174                 }
1175                 sdata->vif.bss_conf.basic_rates = rates;
1176                 changed |= BSS_CHANGED_BASIC_RATES;
1177         }
1178
1179         if (params->ap_isolate >= 0) {
1180                 if (params->ap_isolate)
1181                         sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1182                 else
1183                         sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1184         }
1185
1186         if (params->ht_opmode >= 0) {
1187                 sdata->vif.bss_conf.ht_operation_mode =
1188                         (u16) params->ht_opmode;
1189                 changed |= BSS_CHANGED_HT;
1190         }
1191
1192         ieee80211_bss_info_change_notify(sdata, changed);
1193
1194         return 0;
1195 }
1196
1197 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1198                                     struct ieee80211_txq_params *params)
1199 {
1200         struct ieee80211_local *local = wiphy_priv(wiphy);
1201         struct ieee80211_tx_queue_params p;
1202
1203         if (!local->ops->conf_tx)
1204                 return -EOPNOTSUPP;
1205
1206         memset(&p, 0, sizeof(p));
1207         p.aifs = params->aifs;
1208         p.cw_max = params->cwmax;
1209         p.cw_min = params->cwmin;
1210         p.txop = params->txop;
1211
1212         /*
1213          * Setting tx queue params disables u-apsd because it's only
1214          * called in master mode.
1215          */
1216         p.uapsd = false;
1217
1218         if (drv_conf_tx(local, params->queue, &p)) {
1219                 wiphy_debug(local->hw.wiphy,
1220                             "failed to set TX queue parameters for queue %d\n",
1221                             params->queue);
1222                 return -EINVAL;
1223         }
1224
1225         return 0;
1226 }
1227
1228 static int ieee80211_set_channel(struct wiphy *wiphy,
1229                                  struct net_device *netdev,
1230                                  struct ieee80211_channel *chan,
1231                                  enum nl80211_channel_type channel_type)
1232 {
1233         struct ieee80211_local *local = wiphy_priv(wiphy);
1234         struct ieee80211_sub_if_data *sdata = NULL;
1235         struct ieee80211_channel *old_oper;
1236         enum nl80211_channel_type old_oper_type;
1237         enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
1238
1239         if (netdev)
1240                 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1241
1242         switch (ieee80211_get_channel_mode(local, NULL)) {
1243         case CHAN_MODE_HOPPING:
1244                 return -EBUSY;
1245         case CHAN_MODE_FIXED:
1246                 if (local->oper_channel != chan)
1247                         return -EBUSY;
1248                 if (!sdata && local->_oper_channel_type == channel_type)
1249                         return 0;
1250                 break;
1251         case CHAN_MODE_UNDEFINED:
1252                 break;
1253         }
1254
1255         if (sdata)
1256                 old_vif_oper_type = sdata->vif.bss_conf.channel_type;
1257         old_oper_type = local->_oper_channel_type;
1258
1259         if (!ieee80211_set_channel_type(local, sdata, channel_type))
1260                 return -EBUSY;
1261
1262         old_oper = local->oper_channel;
1263         local->oper_channel = chan;
1264
1265         /* Update driver if changes were actually made. */
1266         if ((old_oper != local->oper_channel) ||
1267             (old_oper_type != local->_oper_channel_type))
1268                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1269
1270         if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
1271             old_vif_oper_type != sdata->vif.bss_conf.channel_type)
1272                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1273
1274         return 0;
1275 }
1276
1277 #ifdef CONFIG_PM
1278 static int ieee80211_suspend(struct wiphy *wiphy)
1279 {
1280         return __ieee80211_suspend(wiphy_priv(wiphy));
1281 }
1282
1283 static int ieee80211_resume(struct wiphy *wiphy)
1284 {
1285         return __ieee80211_resume(wiphy_priv(wiphy));
1286 }
1287 #else
1288 #define ieee80211_suspend NULL
1289 #define ieee80211_resume NULL
1290 #endif
1291
1292 static int ieee80211_scan(struct wiphy *wiphy,
1293                           struct net_device *dev,
1294                           struct cfg80211_scan_request *req)
1295 {
1296         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1297
1298         switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1299         case NL80211_IFTYPE_STATION:
1300         case NL80211_IFTYPE_ADHOC:
1301         case NL80211_IFTYPE_MESH_POINT:
1302         case NL80211_IFTYPE_P2P_CLIENT:
1303                 break;
1304         case NL80211_IFTYPE_P2P_GO:
1305                 if (sdata->local->ops->hw_scan)
1306                         break;
1307                 /*
1308                  * FIXME: implement NoA while scanning in software,
1309                  * for now fall through to allow scanning only when
1310                  * beaconing hasn't been configured yet
1311                  */
1312         case NL80211_IFTYPE_AP:
1313                 if (sdata->u.ap.beacon)
1314                         return -EOPNOTSUPP;
1315                 break;
1316         default:
1317                 return -EOPNOTSUPP;
1318         }
1319
1320         return ieee80211_request_scan(sdata, req);
1321 }
1322
1323 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1324                           struct cfg80211_auth_request *req)
1325 {
1326         return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1327 }
1328
1329 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1330                            struct cfg80211_assoc_request *req)
1331 {
1332         struct ieee80211_local *local = wiphy_priv(wiphy);
1333         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1334
1335         switch (ieee80211_get_channel_mode(local, sdata)) {
1336         case CHAN_MODE_HOPPING:
1337                 return -EBUSY;
1338         case CHAN_MODE_FIXED:
1339                 if (local->oper_channel == req->bss->channel)
1340                         break;
1341                 return -EBUSY;
1342         case CHAN_MODE_UNDEFINED:
1343                 break;
1344         }
1345
1346         return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1347 }
1348
1349 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1350                             struct cfg80211_deauth_request *req,
1351                             void *cookie)
1352 {
1353         return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1354                                     req, cookie);
1355 }
1356
1357 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1358                               struct cfg80211_disassoc_request *req,
1359                               void *cookie)
1360 {
1361         return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1362                                       req, cookie);
1363 }
1364
1365 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1366                                struct cfg80211_ibss_params *params)
1367 {
1368         struct ieee80211_local *local = wiphy_priv(wiphy);
1369         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1370
1371         switch (ieee80211_get_channel_mode(local, sdata)) {
1372         case CHAN_MODE_HOPPING:
1373                 return -EBUSY;
1374         case CHAN_MODE_FIXED:
1375                 if (!params->channel_fixed)
1376                         return -EBUSY;
1377                 if (local->oper_channel == params->channel)
1378                         break;
1379                 return -EBUSY;
1380         case CHAN_MODE_UNDEFINED:
1381                 break;
1382         }
1383
1384         return ieee80211_ibss_join(sdata, params);
1385 }
1386
1387 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1388 {
1389         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1390
1391         return ieee80211_ibss_leave(sdata);
1392 }
1393
1394 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1395 {
1396         struct ieee80211_local *local = wiphy_priv(wiphy);
1397         int err;
1398
1399         if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1400                 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1401
1402                 if (err)
1403                         return err;
1404         }
1405
1406         if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1407                 err = drv_set_coverage_class(local, wiphy->coverage_class);
1408
1409                 if (err)
1410                         return err;
1411         }
1412
1413         if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1414                 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1415
1416                 if (err)
1417                         return err;
1418         }
1419
1420         if (changed & WIPHY_PARAM_RETRY_SHORT)
1421                 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1422         if (changed & WIPHY_PARAM_RETRY_LONG)
1423                 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1424         if (changed &
1425             (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1426                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1427
1428         return 0;
1429 }
1430
1431 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1432                                   enum nl80211_tx_power_setting type, int mbm)
1433 {
1434         struct ieee80211_local *local = wiphy_priv(wiphy);
1435         struct ieee80211_channel *chan = local->hw.conf.channel;
1436         u32 changes = 0;
1437
1438         switch (type) {
1439         case NL80211_TX_POWER_AUTOMATIC:
1440                 local->user_power_level = -1;
1441                 break;
1442         case NL80211_TX_POWER_LIMITED:
1443                 if (mbm < 0 || (mbm % 100))
1444                         return -EOPNOTSUPP;
1445                 local->user_power_level = MBM_TO_DBM(mbm);
1446                 break;
1447         case NL80211_TX_POWER_FIXED:
1448                 if (mbm < 0 || (mbm % 100))
1449                         return -EOPNOTSUPP;
1450                 /* TODO: move to cfg80211 when it knows the channel */
1451                 if (MBM_TO_DBM(mbm) > chan->max_power)
1452                         return -EINVAL;
1453                 local->user_power_level = MBM_TO_DBM(mbm);
1454                 break;
1455         }
1456
1457         ieee80211_hw_config(local, changes);
1458
1459         return 0;
1460 }
1461
1462 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1463 {
1464         struct ieee80211_local *local = wiphy_priv(wiphy);
1465
1466         *dbm = local->hw.conf.power_level;
1467
1468         return 0;
1469 }
1470
1471 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1472                                   const u8 *addr)
1473 {
1474         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1475
1476         memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1477
1478         return 0;
1479 }
1480
1481 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1482 {
1483         struct ieee80211_local *local = wiphy_priv(wiphy);
1484
1485         drv_rfkill_poll(local);
1486 }
1487
1488 #ifdef CONFIG_NL80211_TESTMODE
1489 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1490 {
1491         struct ieee80211_local *local = wiphy_priv(wiphy);
1492
1493         if (!local->ops->testmode_cmd)
1494                 return -EOPNOTSUPP;
1495
1496         return local->ops->testmode_cmd(&local->hw, data, len);
1497 }
1498 #endif
1499
1500 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1501                              enum ieee80211_smps_mode smps_mode)
1502 {
1503         const u8 *ap;
1504         enum ieee80211_smps_mode old_req;
1505         int err;
1506
1507         old_req = sdata->u.mgd.req_smps;
1508         sdata->u.mgd.req_smps = smps_mode;
1509
1510         if (old_req == smps_mode &&
1511             smps_mode != IEEE80211_SMPS_AUTOMATIC)
1512                 return 0;
1513
1514         /*
1515          * If not associated, or current association is not an HT
1516          * association, there's no need to send an action frame.
1517          */
1518         if (!sdata->u.mgd.associated ||
1519             sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1520                 mutex_lock(&sdata->local->iflist_mtx);
1521                 ieee80211_recalc_smps(sdata->local);
1522                 mutex_unlock(&sdata->local->iflist_mtx);
1523                 return 0;
1524         }
1525
1526         ap = sdata->u.mgd.associated->bssid;
1527
1528         if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1529                 if (sdata->u.mgd.powersave)
1530                         smps_mode = IEEE80211_SMPS_DYNAMIC;
1531                 else
1532                         smps_mode = IEEE80211_SMPS_OFF;
1533         }
1534
1535         /* send SM PS frame to AP */
1536         err = ieee80211_send_smps_action(sdata, smps_mode,
1537                                          ap, ap);
1538         if (err)
1539                 sdata->u.mgd.req_smps = old_req;
1540
1541         return err;
1542 }
1543
1544 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1545                                     bool enabled, int timeout)
1546 {
1547         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1548         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1549
1550         if (sdata->vif.type != NL80211_IFTYPE_STATION)
1551                 return -EOPNOTSUPP;
1552
1553         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1554                 return -EOPNOTSUPP;
1555
1556         if (enabled == sdata->u.mgd.powersave &&
1557             timeout == local->dynamic_ps_forced_timeout)
1558                 return 0;
1559
1560         sdata->u.mgd.powersave = enabled;
1561         local->dynamic_ps_forced_timeout = timeout;
1562
1563         /* no change, but if automatic follow powersave */
1564         mutex_lock(&sdata->u.mgd.mtx);
1565         __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1566         mutex_unlock(&sdata->u.mgd.mtx);
1567
1568         if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1569                 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1570
1571         ieee80211_recalc_ps(local, -1);
1572
1573         return 0;
1574 }
1575
1576 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1577                                          struct net_device *dev,
1578                                          s32 rssi_thold, u32 rssi_hyst)
1579 {
1580         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1581         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1582         struct ieee80211_vif *vif = &sdata->vif;
1583         struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1584
1585         if (rssi_thold == bss_conf->cqm_rssi_thold &&
1586             rssi_hyst == bss_conf->cqm_rssi_hyst)
1587                 return 0;
1588
1589         bss_conf->cqm_rssi_thold = rssi_thold;
1590         bss_conf->cqm_rssi_hyst = rssi_hyst;
1591
1592         if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1593                 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1594                         return -EOPNOTSUPP;
1595                 return 0;
1596         }
1597
1598         /* tell the driver upon association, unless already associated */
1599         if (sdata->u.mgd.associated)
1600                 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1601
1602         return 0;
1603 }
1604
1605 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1606                                       struct net_device *dev,
1607                                       const u8 *addr,
1608                                       const struct cfg80211_bitrate_mask *mask)
1609 {
1610         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1611         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1612         int i;
1613
1614         /*
1615          * This _could_ be supported by providing a hook for
1616          * drivers for this function, but at this point it
1617          * doesn't seem worth bothering.
1618          */
1619         if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1620                 return -EOPNOTSUPP;
1621
1622
1623         for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1624                 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1625
1626         return 0;
1627 }
1628
1629 static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1630                                           struct net_device *dev,
1631                                           struct ieee80211_channel *chan,
1632                                           enum nl80211_channel_type chantype,
1633                                           unsigned int duration, u64 *cookie)
1634 {
1635         int ret;
1636         u32 random_cookie;
1637
1638         lockdep_assert_held(&local->mtx);
1639
1640         if (local->hw_roc_cookie)
1641                 return -EBUSY;
1642         /* must be nonzero */
1643         random_cookie = random32() | 1;
1644
1645         *cookie = random_cookie;
1646         local->hw_roc_dev = dev;
1647         local->hw_roc_cookie = random_cookie;
1648         local->hw_roc_channel = chan;
1649         local->hw_roc_channel_type = chantype;
1650         local->hw_roc_duration = duration;
1651         ret = drv_remain_on_channel(local, chan, chantype, duration);
1652         if (ret) {
1653                 local->hw_roc_channel = NULL;
1654                 local->hw_roc_cookie = 0;
1655         }
1656
1657         return ret;
1658 }
1659
1660 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1661                                        struct net_device *dev,
1662                                        struct ieee80211_channel *chan,
1663                                        enum nl80211_channel_type channel_type,
1664                                        unsigned int duration,
1665                                        u64 *cookie)
1666 {
1667         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1668         struct ieee80211_local *local = sdata->local;
1669
1670         if (local->ops->remain_on_channel) {
1671                 int ret;
1672
1673                 mutex_lock(&local->mtx);
1674                 ret = ieee80211_remain_on_channel_hw(local, dev,
1675                                                      chan, channel_type,
1676                                                      duration, cookie);
1677                 local->hw_roc_for_tx = false;
1678                 mutex_unlock(&local->mtx);
1679
1680                 return ret;
1681         }
1682
1683         return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1684                                               duration, cookie);
1685 }
1686
1687 static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1688                                                  u64 cookie)
1689 {
1690         int ret;
1691
1692         lockdep_assert_held(&local->mtx);
1693
1694         if (local->hw_roc_cookie != cookie)
1695                 return -ENOENT;
1696
1697         ret = drv_cancel_remain_on_channel(local);
1698         if (ret)
1699                 return ret;
1700
1701         local->hw_roc_cookie = 0;
1702         local->hw_roc_channel = NULL;
1703
1704         ieee80211_recalc_idle(local);
1705
1706         return 0;
1707 }
1708
1709 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1710                                               struct net_device *dev,
1711                                               u64 cookie)
1712 {
1713         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1714         struct ieee80211_local *local = sdata->local;
1715
1716         if (local->ops->cancel_remain_on_channel) {
1717                 int ret;
1718
1719                 mutex_lock(&local->mtx);
1720                 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1721                 mutex_unlock(&local->mtx);
1722
1723                 return ret;
1724         }
1725
1726         return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1727 }
1728
1729 static enum work_done_result
1730 ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1731 {
1732         /*
1733          * Use the data embedded in the work struct for reporting
1734          * here so if the driver mangled the SKB before dropping
1735          * it (which is the only way we really should get here)
1736          * then we don't report mangled data.
1737          *
1738          * If there was no wait time, then by the time we get here
1739          * the driver will likely not have reported the status yet,
1740          * so in that case userspace will have to deal with it.
1741          */
1742
1743         if (wk->offchan_tx.wait && wk->offchan_tx.frame)
1744                 cfg80211_mgmt_tx_status(wk->sdata->dev,
1745                                         (unsigned long) wk->offchan_tx.frame,
1746                                         wk->ie, wk->ie_len, false, GFP_KERNEL);
1747
1748         return WORK_DONE_DESTROY;
1749 }
1750
1751 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1752                              struct ieee80211_channel *chan, bool offchan,
1753                              enum nl80211_channel_type channel_type,
1754                              bool channel_type_valid, unsigned int wait,
1755                              const u8 *buf, size_t len, u64 *cookie)
1756 {
1757         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1758         struct ieee80211_local *local = sdata->local;
1759         struct sk_buff *skb;
1760         struct sta_info *sta;
1761         struct ieee80211_work *wk;
1762         const struct ieee80211_mgmt *mgmt = (void *)buf;
1763         u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1764                     IEEE80211_TX_CTL_REQ_TX_STATUS;
1765         bool is_offchan = false;
1766
1767         /* Check that we are on the requested channel for transmission */
1768         if (chan != local->tmp_channel &&
1769             chan != local->oper_channel)
1770                 is_offchan = true;
1771         if (channel_type_valid &&
1772             (channel_type != local->tmp_channel_type &&
1773              channel_type != local->_oper_channel_type))
1774                 is_offchan = true;
1775
1776         if (chan == local->hw_roc_channel) {
1777                 /* TODO: check channel type? */
1778                 is_offchan = false;
1779                 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1780         }
1781
1782         if (is_offchan && !offchan)
1783                 return -EBUSY;
1784
1785         switch (sdata->vif.type) {
1786         case NL80211_IFTYPE_ADHOC:
1787         case NL80211_IFTYPE_AP:
1788         case NL80211_IFTYPE_AP_VLAN:
1789         case NL80211_IFTYPE_P2P_GO:
1790         case NL80211_IFTYPE_MESH_POINT:
1791                 if (!ieee80211_is_action(mgmt->frame_control) ||
1792                     mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1793                         break;
1794                 rcu_read_lock();
1795                 sta = sta_info_get(sdata, mgmt->da);
1796                 rcu_read_unlock();
1797                 if (!sta)
1798                         return -ENOLINK;
1799                 break;
1800         case NL80211_IFTYPE_STATION:
1801         case NL80211_IFTYPE_P2P_CLIENT:
1802                 break;
1803         default:
1804                 return -EOPNOTSUPP;
1805         }
1806
1807         skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1808         if (!skb)
1809                 return -ENOMEM;
1810         skb_reserve(skb, local->hw.extra_tx_headroom);
1811
1812         memcpy(skb_put(skb, len), buf, len);
1813
1814         IEEE80211_SKB_CB(skb)->flags = flags;
1815
1816         skb->dev = sdata->dev;
1817
1818         *cookie = (unsigned long) skb;
1819
1820         if (is_offchan && local->ops->offchannel_tx) {
1821                 int ret;
1822
1823                 IEEE80211_SKB_CB(skb)->band = chan->band;
1824
1825                 mutex_lock(&local->mtx);
1826
1827                 if (local->hw_offchan_tx_cookie) {
1828                         mutex_unlock(&local->mtx);
1829                         return -EBUSY;
1830                 }
1831
1832                 /* TODO: bitrate control, TX processing? */
1833                 ret = drv_offchannel_tx(local, skb, chan, channel_type, wait);
1834
1835                 if (ret == 0)
1836                         local->hw_offchan_tx_cookie = *cookie;
1837                 mutex_unlock(&local->mtx);
1838
1839                 /*
1840                  * Allow driver to return 1 to indicate it wants to have the
1841                  * frame transmitted with a remain_on_channel + regular TX.
1842                  */
1843                 if (ret != 1)
1844                         return ret;
1845         }
1846
1847         if (is_offchan && local->ops->remain_on_channel) {
1848                 unsigned int duration;
1849                 int ret;
1850
1851                 mutex_lock(&local->mtx);
1852                 /*
1853                  * If the duration is zero, then the driver
1854                  * wouldn't actually do anything. Set it to
1855                  * 100 for now.
1856                  *
1857                  * TODO: cancel the off-channel operation
1858                  *       when we get the SKB's TX status and
1859                  *       the wait time was zero before.
1860                  */
1861                 duration = 100;
1862                 if (wait)
1863                         duration = wait;
1864                 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
1865                                                      channel_type,
1866                                                      duration, cookie);
1867                 if (ret) {
1868                         kfree_skb(skb);
1869                         mutex_unlock(&local->mtx);
1870                         return ret;
1871                 }
1872
1873                 local->hw_roc_for_tx = true;
1874                 local->hw_roc_duration = wait;
1875
1876                 /*
1877                  * queue up frame for transmission after
1878                  * ieee80211_ready_on_channel call
1879                  */
1880
1881                 /* modify cookie to prevent API mismatches */
1882                 *cookie ^= 2;
1883                 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1884                 local->hw_roc_skb = skb;
1885                 local->hw_roc_skb_for_status = skb;
1886                 mutex_unlock(&local->mtx);
1887
1888                 return 0;
1889         }
1890
1891         /*
1892          * Can transmit right away if the channel was the
1893          * right one and there's no wait involved... If a
1894          * wait is involved, we might otherwise not be on
1895          * the right channel for long enough!
1896          */
1897         if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
1898                 ieee80211_tx_skb(sdata, skb);
1899                 return 0;
1900         }
1901
1902         wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
1903         if (!wk) {
1904                 kfree_skb(skb);
1905                 return -ENOMEM;
1906         }
1907
1908         wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
1909         wk->chan = chan;
1910         wk->chan_type = channel_type;
1911         wk->sdata = sdata;
1912         wk->done = ieee80211_offchan_tx_done;
1913         wk->offchan_tx.frame = skb;
1914         wk->offchan_tx.wait = wait;
1915         wk->ie_len = len;
1916         memcpy(wk->ie, buf, len);
1917
1918         ieee80211_add_work(wk);
1919         return 0;
1920 }
1921
1922 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1923                                          struct net_device *dev,
1924                                          u64 cookie)
1925 {
1926         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1927         struct ieee80211_local *local = sdata->local;
1928         struct ieee80211_work *wk;
1929         int ret = -ENOENT;
1930
1931         mutex_lock(&local->mtx);
1932
1933         if (local->ops->offchannel_tx_cancel_wait &&
1934             local->hw_offchan_tx_cookie == cookie) {
1935                 ret = drv_offchannel_tx_cancel_wait(local);
1936
1937                 if (!ret)
1938                         local->hw_offchan_tx_cookie = 0;
1939
1940                 mutex_unlock(&local->mtx);
1941
1942                 return ret;
1943         }
1944
1945         if (local->ops->cancel_remain_on_channel) {
1946                 cookie ^= 2;
1947                 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1948
1949                 if (ret == 0) {
1950                         kfree_skb(local->hw_roc_skb);
1951                         local->hw_roc_skb = NULL;
1952                         local->hw_roc_skb_for_status = NULL;
1953                 }
1954
1955                 mutex_unlock(&local->mtx);
1956
1957                 return ret;
1958         }
1959
1960         list_for_each_entry(wk, &local->work_list, list) {
1961                 if (wk->sdata != sdata)
1962                         continue;
1963
1964                 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
1965                         continue;
1966
1967                 if (cookie != (unsigned long) wk->offchan_tx.frame)
1968                         continue;
1969
1970                 wk->timeout = jiffies;
1971
1972                 ieee80211_queue_work(&local->hw, &local->work_work);
1973                 ret = 0;
1974                 break;
1975         }
1976         mutex_unlock(&local->mtx);
1977
1978         return ret;
1979 }
1980
1981 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
1982                                           struct net_device *dev,
1983                                           u16 frame_type, bool reg)
1984 {
1985         struct ieee80211_local *local = wiphy_priv(wiphy);
1986
1987         if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
1988                 return;
1989
1990         if (reg)
1991                 local->probe_req_reg++;
1992         else
1993                 local->probe_req_reg--;
1994
1995         ieee80211_queue_work(&local->hw, &local->reconfig_filter);
1996 }
1997
1998 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
1999 {
2000         struct ieee80211_local *local = wiphy_priv(wiphy);
2001
2002         if (local->started)
2003                 return -EOPNOTSUPP;
2004
2005         return drv_set_antenna(local, tx_ant, rx_ant);
2006 }
2007
2008 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2009 {
2010         struct ieee80211_local *local = wiphy_priv(wiphy);
2011
2012         return drv_get_antenna(local, tx_ant, rx_ant);
2013 }
2014
2015 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2016 {
2017         struct ieee80211_local *local = wiphy_priv(wiphy);
2018
2019         return drv_set_ringparam(local, tx, rx);
2020 }
2021
2022 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2023                                     u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2024 {
2025         struct ieee80211_local *local = wiphy_priv(wiphy);
2026
2027         drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2028 }
2029
2030 struct cfg80211_ops mac80211_config_ops = {
2031         .add_virtual_intf = ieee80211_add_iface,
2032         .del_virtual_intf = ieee80211_del_iface,
2033         .change_virtual_intf = ieee80211_change_iface,
2034         .add_key = ieee80211_add_key,
2035         .del_key = ieee80211_del_key,
2036         .get_key = ieee80211_get_key,
2037         .set_default_key = ieee80211_config_default_key,
2038         .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
2039         .add_beacon = ieee80211_add_beacon,
2040         .set_beacon = ieee80211_set_beacon,
2041         .del_beacon = ieee80211_del_beacon,
2042         .add_station = ieee80211_add_station,
2043         .del_station = ieee80211_del_station,
2044         .change_station = ieee80211_change_station,
2045         .get_station = ieee80211_get_station,
2046         .dump_station = ieee80211_dump_station,
2047         .dump_survey = ieee80211_dump_survey,
2048 #ifdef CONFIG_MAC80211_MESH
2049         .add_mpath = ieee80211_add_mpath,
2050         .del_mpath = ieee80211_del_mpath,
2051         .change_mpath = ieee80211_change_mpath,
2052         .get_mpath = ieee80211_get_mpath,
2053         .dump_mpath = ieee80211_dump_mpath,
2054         .update_mesh_config = ieee80211_update_mesh_config,
2055         .get_mesh_config = ieee80211_get_mesh_config,
2056         .join_mesh = ieee80211_join_mesh,
2057         .leave_mesh = ieee80211_leave_mesh,
2058 #endif
2059         .change_bss = ieee80211_change_bss,
2060         .set_txq_params = ieee80211_set_txq_params,
2061         .set_channel = ieee80211_set_channel,
2062         .suspend = ieee80211_suspend,
2063         .resume = ieee80211_resume,
2064         .scan = ieee80211_scan,
2065         .auth = ieee80211_auth,
2066         .assoc = ieee80211_assoc,
2067         .deauth = ieee80211_deauth,
2068         .disassoc = ieee80211_disassoc,
2069         .join_ibss = ieee80211_join_ibss,
2070         .leave_ibss = ieee80211_leave_ibss,
2071         .set_wiphy_params = ieee80211_set_wiphy_params,
2072         .set_tx_power = ieee80211_set_tx_power,
2073         .get_tx_power = ieee80211_get_tx_power,
2074         .set_wds_peer = ieee80211_set_wds_peer,
2075         .rfkill_poll = ieee80211_rfkill_poll,
2076         CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
2077         .set_power_mgmt = ieee80211_set_power_mgmt,
2078         .set_bitrate_mask = ieee80211_set_bitrate_mask,
2079         .remain_on_channel = ieee80211_remain_on_channel,
2080         .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2081         .mgmt_tx = ieee80211_mgmt_tx,
2082         .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
2083         .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
2084         .mgmt_frame_register = ieee80211_mgmt_frame_register,
2085         .set_antenna = ieee80211_set_antenna,
2086         .get_antenna = ieee80211_get_antenna,
2087         .set_ringparam = ieee80211_set_ringparam,
2088         .get_ringparam = ieee80211_get_ringparam,
2089 };