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Merge remote-tracking branch 'moduleh/module.h-split'
[linux-2.6/next.git] / net / mac80211 / cfg.c
blob4baa03b1c251b0691d45d4622b28d595d08dd076
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_INIT_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 if (ieee80211_vif_is_mesh(&sdata->vif))
140 sta = sta_info_get(sdata, mac_addr);
141 else
142 sta = sta_info_get_bss(sdata, mac_addr);
143 if (!sta) {
144 ieee80211_key_free(sdata->local, key);
145 err = -ENOENT;
146 goto out_unlock;
147 }
148 }
149
150 err = ieee80211_key_link(key, sdata, sta);
151 if (err)
152 ieee80211_key_free(sdata->local, key);
153
154 out_unlock:
155 mutex_unlock(&sdata->local->sta_mtx);
156
157 return err;
158 }
159
160 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
161 u8 key_idx, bool pairwise, const u8 *mac_addr)
162 {
163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
164 struct ieee80211_local *local = sdata->local;
165 struct sta_info *sta;
166 struct ieee80211_key *key = NULL;
167 int ret;
168
169 mutex_lock(&local->sta_mtx);
170 mutex_lock(&local->key_mtx);
171
172 if (mac_addr) {
173 ret = -ENOENT;
174
175 sta = sta_info_get_bss(sdata, mac_addr);
176 if (!sta)
177 goto out_unlock;
178
179 if (pairwise)
180 key = key_mtx_dereference(local, sta->ptk);
181 else
182 key = key_mtx_dereference(local, sta->gtk[key_idx]);
183 } else
184 key = key_mtx_dereference(local, sdata->keys[key_idx]);
185
186 if (!key) {
187 ret = -ENOENT;
188 goto out_unlock;
189 }
190
191 __ieee80211_key_free(key);
192
193 ret = 0;
194 out_unlock:
195 mutex_unlock(&local->key_mtx);
196 mutex_unlock(&local->sta_mtx);
197
198 return ret;
199 }
200
201 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
202 u8 key_idx, bool pairwise, const u8 *mac_addr,
203 void *cookie,
204 void (*callback)(void *cookie,
205 struct key_params *params))
206 {
207 struct ieee80211_sub_if_data *sdata;
208 struct sta_info *sta = NULL;
209 u8 seq[6] = {0};
210 struct key_params params;
211 struct ieee80211_key *key = NULL;
212 u64 pn64;
213 u32 iv32;
214 u16 iv16;
215 int err = -ENOENT;
216
217 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
218
219 rcu_read_lock();
220
221 if (mac_addr) {
222 sta = sta_info_get_bss(sdata, mac_addr);
223 if (!sta)
224 goto out;
225
226 if (pairwise)
227 key = rcu_dereference(sta->ptk);
228 else if (key_idx < NUM_DEFAULT_KEYS)
229 key = rcu_dereference(sta->gtk[key_idx]);
230 } else
231 key = rcu_dereference(sdata->keys[key_idx]);
232
233 if (!key)
234 goto out;
235
236 memset(&params, 0, sizeof(params));
237
238 params.cipher = key->conf.cipher;
239
240 switch (key->conf.cipher) {
241 case WLAN_CIPHER_SUITE_TKIP:
242 iv32 = key->u.tkip.tx.iv32;
243 iv16 = key->u.tkip.tx.iv16;
244
245 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
246 drv_get_tkip_seq(sdata->local,
247 key->conf.hw_key_idx,
248 &iv32, &iv16);
249
250 seq[0] = iv16 & 0xff;
251 seq[1] = (iv16 >> 8) & 0xff;
252 seq[2] = iv32 & 0xff;
253 seq[3] = (iv32 >> 8) & 0xff;
254 seq[4] = (iv32 >> 16) & 0xff;
255 seq[5] = (iv32 >> 24) & 0xff;
256 params.seq = seq;
257 params.seq_len = 6;
258 break;
259 case WLAN_CIPHER_SUITE_CCMP:
260 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
261 seq[0] = pn64;
262 seq[1] = pn64 >> 8;
263 seq[2] = pn64 >> 16;
264 seq[3] = pn64 >> 24;
265 seq[4] = pn64 >> 32;
266 seq[5] = pn64 >> 40;
267 params.seq = seq;
268 params.seq_len = 6;
269 break;
270 case WLAN_CIPHER_SUITE_AES_CMAC:
271 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
272 seq[0] = pn64;
273 seq[1] = pn64 >> 8;
274 seq[2] = pn64 >> 16;
275 seq[3] = pn64 >> 24;
276 seq[4] = pn64 >> 32;
277 seq[5] = pn64 >> 40;
278 params.seq = seq;
279 params.seq_len = 6;
280 break;
281 }
282
283 params.key = key->conf.key;
284 params.key_len = key->conf.keylen;
285
286 callback(cookie, &params);
287 err = 0;
288
289 out:
290 rcu_read_unlock();
291 return err;
292 }
293
294 static int ieee80211_config_default_key(struct wiphy *wiphy,
295 struct net_device *dev,
296 u8 key_idx, bool uni,
297 bool multi)
298 {
299 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
300
301 ieee80211_set_default_key(sdata, key_idx, uni, multi);
302
303 return 0;
304 }
305
306 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
307 struct net_device *dev,
308 u8 key_idx)
309 {
310 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
311
312 ieee80211_set_default_mgmt_key(sdata, key_idx);
313
314 return 0;
315 }
316
317 static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
318 {
319 if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
320 struct ieee80211_supported_band *sband;
321 sband = sta->local->hw.wiphy->bands[
322 sta->local->hw.conf.channel->band];
323 rate->legacy = sband->bitrates[idx].bitrate;
324 } else
325 rate->mcs = idx;
326 }
327
328 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
329 {
330 struct ieee80211_sub_if_data *sdata = sta->sdata;
331 struct timespec uptime;
332
333 sinfo->generation = sdata->local->sta_generation;
334
335 sinfo->filled = STATION_INFO_INACTIVE_TIME |
336 STATION_INFO_RX_BYTES |
337 STATION_INFO_TX_BYTES |
338 STATION_INFO_RX_PACKETS |
339 STATION_INFO_TX_PACKETS |
340 STATION_INFO_TX_RETRIES |
341 STATION_INFO_TX_FAILED |
342 STATION_INFO_TX_BITRATE |
343 STATION_INFO_RX_BITRATE |
344 STATION_INFO_RX_DROP_MISC |
345 STATION_INFO_BSS_PARAM |
346 STATION_INFO_CONNECTED_TIME;
347
348 do_posix_clock_monotonic_gettime(&uptime);
349 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
350
351 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
352 sinfo->rx_bytes = sta->rx_bytes;
353 sinfo->tx_bytes = sta->tx_bytes;
354 sinfo->rx_packets = sta->rx_packets;
355 sinfo->tx_packets = sta->tx_packets;
356 sinfo->tx_retries = sta->tx_retry_count;
357 sinfo->tx_failed = sta->tx_retry_failed;
358 sinfo->rx_dropped_misc = sta->rx_dropped;
359
360 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
361 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
362 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
363 sinfo->signal = (s8)sta->last_signal;
364 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
365 }
366
367 sinfo->txrate.flags = 0;
368 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
369 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
370 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
371 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
372 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
373 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
374 rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx);
375
376 sinfo->rxrate.flags = 0;
377 if (sta->last_rx_rate_flag & RX_FLAG_HT)
378 sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
379 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
380 sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
381 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
382 sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
383 rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
384
385 if (ieee80211_vif_is_mesh(&sdata->vif)) {
386 #ifdef CONFIG_MAC80211_MESH
387 sinfo->filled |= STATION_INFO_LLID |
388 STATION_INFO_PLID |
389 STATION_INFO_PLINK_STATE;
390
391 sinfo->llid = le16_to_cpu(sta->llid);
392 sinfo->plid = le16_to_cpu(sta->plid);
393 sinfo->plink_state = sta->plink_state;
394 #endif
395 }
396
397 sinfo->bss_param.flags = 0;
398 if (sdata->vif.bss_conf.use_cts_prot)
399 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
400 if (sdata->vif.bss_conf.use_short_preamble)
401 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
402 if (sdata->vif.bss_conf.use_short_slot)
403 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
404 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
405 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
406 }
407
408
409 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
410 int idx, u8 *mac, struct station_info *sinfo)
411 {
412 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
413 struct sta_info *sta;
414 int ret = -ENOENT;
415
416 rcu_read_lock();
417
418 sta = sta_info_get_by_idx(sdata, idx);
419 if (sta) {
420 ret = 0;
421 memcpy(mac, sta->sta.addr, ETH_ALEN);
422 sta_set_sinfo(sta, sinfo);
423 }
424
425 rcu_read_unlock();
426
427 return ret;
428 }
429
430 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
431 int idx, struct survey_info *survey)
432 {
433 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
434
435 return drv_get_survey(local, idx, survey);
436 }
437
438 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
439 u8 *mac, struct station_info *sinfo)
440 {
441 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
442 struct sta_info *sta;
443 int ret = -ENOENT;
444
445 rcu_read_lock();
446
447 sta = sta_info_get_bss(sdata, mac);
448 if (sta) {
449 ret = 0;
450 sta_set_sinfo(sta, sinfo);
451 }
452
453 rcu_read_unlock();
454
455 return ret;
456 }
457
458 /*
459 * This handles both adding a beacon and setting new beacon info
460 */
461 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
462 struct beacon_parameters *params)
463 {
464 struct beacon_data *new, *old;
465 int new_head_len, new_tail_len;
466 int size;
467 int err = -EINVAL;
468
469 old = rtnl_dereference(sdata->u.ap.beacon);
470
471 /* head must not be zero-length */
472 if (params->head && !params->head_len)
473 return -EINVAL;
474
475 /*
476 * This is a kludge. beacon interval should really be part
477 * of the beacon information.
478 */
479 if (params->interval &&
480 (sdata->vif.bss_conf.beacon_int != params->interval)) {
481 sdata->vif.bss_conf.beacon_int = params->interval;
482 ieee80211_bss_info_change_notify(sdata,
483 BSS_CHANGED_BEACON_INT);
484 }
485
486 /* Need to have a beacon head if we don't have one yet */
487 if (!params->head && !old)
488 return err;
489
490 /* sorry, no way to start beaconing without dtim period */
491 if (!params->dtim_period && !old)
492 return err;
493
494 /* new or old head? */
495 if (params->head)
496 new_head_len = params->head_len;
497 else
498 new_head_len = old->head_len;
499
500 /* new or old tail? */
501 if (params->tail || !old)
502 /* params->tail_len will be zero for !params->tail */
503 new_tail_len = params->tail_len;
504 else
505 new_tail_len = old->tail_len;
506
507 size = sizeof(*new) + new_head_len + new_tail_len;
508
509 new = kzalloc(size, GFP_KERNEL);
510 if (!new)
511 return -ENOMEM;
512
513 /* start filling the new info now */
514
515 /* new or old dtim period? */
516 if (params->dtim_period)
517 new->dtim_period = params->dtim_period;
518 else
519 new->dtim_period = old->dtim_period;
520
521 /*
522 * pointers go into the block we allocated,
523 * memory is | beacon_data | head | tail |
524 */
525 new->head = ((u8 *) new) + sizeof(*new);
526 new->tail = new->head + new_head_len;
527 new->head_len = new_head_len;
528 new->tail_len = new_tail_len;
529
530 /* copy in head */
531 if (params->head)
532 memcpy(new->head, params->head, new_head_len);
533 else
534 memcpy(new->head, old->head, new_head_len);
535
536 /* copy in optional tail */
537 if (params->tail)
538 memcpy(new->tail, params->tail, new_tail_len);
539 else
540 if (old)
541 memcpy(new->tail, old->tail, new_tail_len);
542
543 sdata->vif.bss_conf.dtim_period = new->dtim_period;
544
545 RCU_INIT_POINTER(sdata->u.ap.beacon, new);
546
547 synchronize_rcu();
548
549 kfree(old);
550
551 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
552 BSS_CHANGED_BEACON);
553 return 0;
554 }
555
556 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
557 struct beacon_parameters *params)
558 {
559 struct ieee80211_sub_if_data *sdata;
560 struct beacon_data *old;
561
562 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
563
564 old = rtnl_dereference(sdata->u.ap.beacon);
565 if (old)
566 return -EALREADY;
567
568 return ieee80211_config_beacon(sdata, params);
569 }
570
571 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
572 struct beacon_parameters *params)
573 {
574 struct ieee80211_sub_if_data *sdata;
575 struct beacon_data *old;
576
577 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
578
579 old = rtnl_dereference(sdata->u.ap.beacon);
580 if (!old)
581 return -ENOENT;
582
583 return ieee80211_config_beacon(sdata, params);
584 }
585
586 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
587 {
588 struct ieee80211_sub_if_data *sdata;
589 struct beacon_data *old;
590
591 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
592
593 old = rtnl_dereference(sdata->u.ap.beacon);
594 if (!old)
595 return -ENOENT;
596
597 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
598 synchronize_rcu();
599 kfree(old);
600
601 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
602 return 0;
603 }
604
605 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
606 struct iapp_layer2_update {
607 u8 da[ETH_ALEN]; /* broadcast */
608 u8 sa[ETH_ALEN]; /* STA addr */
609 __be16 len; /* 6 */
610 u8 dsap; /* 0 */
611 u8 ssap; /* 0 */
612 u8 control;
613 u8 xid_info[3];
614 } __packed;
615
616 static void ieee80211_send_layer2_update(struct sta_info *sta)
617 {
618 struct iapp_layer2_update *msg;
619 struct sk_buff *skb;
620
621 /* Send Level 2 Update Frame to update forwarding tables in layer 2
622 * bridge devices */
623
624 skb = dev_alloc_skb(sizeof(*msg));
625 if (!skb)
626 return;
627 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
628
629 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
630 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
631
632 memset(msg->da, 0xff, ETH_ALEN);
633 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
634 msg->len = htons(6);
635 msg->dsap = 0;
636 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
637 msg->control = 0xaf; /* XID response lsb.1111F101.
638 * F=0 (no poll command; unsolicited frame) */
639 msg->xid_info[0] = 0x81; /* XID format identifier */
640 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
641 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
642
643 skb->dev = sta->sdata->dev;
644 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
645 memset(skb->cb, 0, sizeof(skb->cb));
646 netif_rx_ni(skb);
647 }
648
649 static void sta_apply_parameters(struct ieee80211_local *local,
650 struct sta_info *sta,
651 struct station_parameters *params)
652 {
653 unsigned long flags;
654 u32 rates;
655 int i, j;
656 struct ieee80211_supported_band *sband;
657 struct ieee80211_sub_if_data *sdata = sta->sdata;
658 u32 mask, set;
659
660 sband = local->hw.wiphy->bands[local->oper_channel->band];
661
662 spin_lock_irqsave(&sta->flaglock, flags);
663 mask = params->sta_flags_mask;
664 set = params->sta_flags_set;
665
666 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
667 sta->flags &= ~WLAN_STA_AUTHORIZED;
668 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
669 sta->flags |= WLAN_STA_AUTHORIZED;
670 }
671
672 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
673 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
674 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
675 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
676 }
677
678 if (mask & BIT(NL80211_STA_FLAG_WME)) {
679 sta->flags &= ~WLAN_STA_WME;
680 sta->sta.wme = false;
681 if (set & BIT(NL80211_STA_FLAG_WME)) {
682 sta->flags |= WLAN_STA_WME;
683 sta->sta.wme = true;
684 }
685 }
686
687 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
688 sta->flags &= ~WLAN_STA_MFP;
689 if (set & BIT(NL80211_STA_FLAG_MFP))
690 sta->flags |= WLAN_STA_MFP;
691 }
692
693 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
694 sta->flags &= ~WLAN_STA_AUTH;
695 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
696 sta->flags |= WLAN_STA_AUTH;
697 }
698 spin_unlock_irqrestore(&sta->flaglock, flags);
699
700 sta->sta.uapsd_queues = params->uapsd_queues;
701 sta->sta.max_sp = params->max_sp;
702
703 /*
704 * cfg80211 validates this (1-2007) and allows setting the AID
705 * only when creating a new station entry
706 */
707 if (params->aid)
708 sta->sta.aid = params->aid;
709
710 /*
711 * FIXME: updating the following information is racy when this
712 * function is called from ieee80211_change_station().
713 * However, all this information should be static so
714 * maybe we should just reject attemps to change it.
715 */
716
717 if (params->listen_interval >= 0)
718 sta->listen_interval = params->listen_interval;
719
720 if (params->supported_rates) {
721 rates = 0;
722
723 for (i = 0; i < params->supported_rates_len; i++) {
724 int rate = (params->supported_rates[i] & 0x7f) * 5;
725 for (j = 0; j < sband->n_bitrates; j++) {
726 if (sband->bitrates[j].bitrate == rate)
727 rates |= BIT(j);
728 }
729 }
730 sta->sta.supp_rates[local->oper_channel->band] = rates;
731 }
732
733 if (params->ht_capa)
734 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
735 params->ht_capa,
736 &sta->sta.ht_cap);
737
738 if (ieee80211_vif_is_mesh(&sdata->vif)) {
739 #ifdef CONFIG_MAC80211_MESH
740 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
741 switch (params->plink_state) {
742 case NL80211_PLINK_LISTEN:
743 case NL80211_PLINK_ESTAB:
744 case NL80211_PLINK_BLOCKED:
745 sta->plink_state = params->plink_state;
746 break;
747 default:
748 /* nothing */
749 break;
750 }
751 else
752 switch (params->plink_action) {
753 case PLINK_ACTION_OPEN:
754 mesh_plink_open(sta);
755 break;
756 case PLINK_ACTION_BLOCK:
757 mesh_plink_block(sta);
758 break;
759 }
760 #endif
761 }
762 }
763
764 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
765 u8 *mac, struct station_parameters *params)
766 {
767 struct ieee80211_local *local = wiphy_priv(wiphy);
768 struct sta_info *sta;
769 struct ieee80211_sub_if_data *sdata;
770 int err;
771 int layer2_update;
772
773 if (params->vlan) {
774 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
775
776 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
777 sdata->vif.type != NL80211_IFTYPE_AP)
778 return -EINVAL;
779 } else
780 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
781
782 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
783 return -EINVAL;
784
785 if (is_multicast_ether_addr(mac))
786 return -EINVAL;
787
788 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
789 if (!sta)
790 return -ENOMEM;
791
792 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
793
794 sta_apply_parameters(local, sta, params);
795
796 rate_control_rate_init(sta);
797
798 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
799 sdata->vif.type == NL80211_IFTYPE_AP;
800
801 err = sta_info_insert_rcu(sta);
802 if (err) {
803 rcu_read_unlock();
804 return err;
805 }
806
807 if (layer2_update)
808 ieee80211_send_layer2_update(sta);
809
810 rcu_read_unlock();
811
812 return 0;
813 }
814
815 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
816 u8 *mac)
817 {
818 struct ieee80211_local *local = wiphy_priv(wiphy);
819 struct ieee80211_sub_if_data *sdata;
820
821 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
822
823 if (mac)
824 return sta_info_destroy_addr_bss(sdata, mac);
825
826 sta_info_flush(local, sdata);
827 return 0;
828 }
829
830 static int ieee80211_change_station(struct wiphy *wiphy,
831 struct net_device *dev,
832 u8 *mac,
833 struct station_parameters *params)
834 {
835 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
836 struct ieee80211_local *local = wiphy_priv(wiphy);
837 struct sta_info *sta;
838 struct ieee80211_sub_if_data *vlansdata;
839
840 rcu_read_lock();
841
842 sta = sta_info_get_bss(sdata, mac);
843 if (!sta) {
844 rcu_read_unlock();
845 return -ENOENT;
846 }
847
848 if (params->vlan && params->vlan != sta->sdata->dev) {
849 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
850
851 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
852 vlansdata->vif.type != NL80211_IFTYPE_AP) {
853 rcu_read_unlock();
854 return -EINVAL;
855 }
856
857 if (params->vlan->ieee80211_ptr->use_4addr) {
858 if (vlansdata->u.vlan.sta) {
859 rcu_read_unlock();
860 return -EBUSY;
861 }
862
863 RCU_INIT_POINTER(vlansdata->u.vlan.sta, sta);
864 }
865
866 sta->sdata = vlansdata;
867 ieee80211_send_layer2_update(sta);
868 }
869
870 sta_apply_parameters(local, sta, params);
871
872 rcu_read_unlock();
873
874 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
875 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
876 ieee80211_recalc_ps(local, -1);
877
878 return 0;
879 }
880
881 #ifdef CONFIG_MAC80211_MESH
882 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
883 u8 *dst, u8 *next_hop)
884 {
885 struct ieee80211_sub_if_data *sdata;
886 struct mesh_path *mpath;
887 struct sta_info *sta;
888 int err;
889
890 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
891
892 rcu_read_lock();
893 sta = sta_info_get(sdata, next_hop);
894 if (!sta) {
895 rcu_read_unlock();
896 return -ENOENT;
897 }
898
899 err = mesh_path_add(dst, sdata);
900 if (err) {
901 rcu_read_unlock();
902 return err;
903 }
904
905 mpath = mesh_path_lookup(dst, sdata);
906 if (!mpath) {
907 rcu_read_unlock();
908 return -ENXIO;
909 }
910 mesh_path_fix_nexthop(mpath, sta);
911
912 rcu_read_unlock();
913 return 0;
914 }
915
916 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
917 u8 *dst)
918 {
919 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
920
921 if (dst)
922 return mesh_path_del(dst, sdata);
923
924 mesh_path_flush(sdata);
925 return 0;
926 }
927
928 static int ieee80211_change_mpath(struct wiphy *wiphy,
929 struct net_device *dev,
930 u8 *dst, u8 *next_hop)
931 {
932 struct ieee80211_sub_if_data *sdata;
933 struct mesh_path *mpath;
934 struct sta_info *sta;
935
936 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
937
938 rcu_read_lock();
939
940 sta = sta_info_get(sdata, next_hop);
941 if (!sta) {
942 rcu_read_unlock();
943 return -ENOENT;
944 }
945
946 mpath = mesh_path_lookup(dst, sdata);
947 if (!mpath) {
948 rcu_read_unlock();
949 return -ENOENT;
950 }
951
952 mesh_path_fix_nexthop(mpath, sta);
953
954 rcu_read_unlock();
955 return 0;
956 }
957
958 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
959 struct mpath_info *pinfo)
960 {
961 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
962
963 if (next_hop_sta)
964 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
965 else
966 memset(next_hop, 0, ETH_ALEN);
967
968 pinfo->generation = mesh_paths_generation;
969
970 pinfo->filled = MPATH_INFO_FRAME_QLEN |
971 MPATH_INFO_SN |
972 MPATH_INFO_METRIC |
973 MPATH_INFO_EXPTIME |
974 MPATH_INFO_DISCOVERY_TIMEOUT |
975 MPATH_INFO_DISCOVERY_RETRIES |
976 MPATH_INFO_FLAGS;
977
978 pinfo->frame_qlen = mpath->frame_queue.qlen;
979 pinfo->sn = mpath->sn;
980 pinfo->metric = mpath->metric;
981 if (time_before(jiffies, mpath->exp_time))
982 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
983 pinfo->discovery_timeout =
984 jiffies_to_msecs(mpath->discovery_timeout);
985 pinfo->discovery_retries = mpath->discovery_retries;
986 pinfo->flags = 0;
987 if (mpath->flags & MESH_PATH_ACTIVE)
988 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
989 if (mpath->flags & MESH_PATH_RESOLVING)
990 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
991 if (mpath->flags & MESH_PATH_SN_VALID)
992 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
993 if (mpath->flags & MESH_PATH_FIXED)
994 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
995 if (mpath->flags & MESH_PATH_RESOLVING)
996 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
997
998 pinfo->flags = mpath->flags;
999 }
1000
1001 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1002 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1003
1004 {
1005 struct ieee80211_sub_if_data *sdata;
1006 struct mesh_path *mpath;
1007
1008 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1009
1010 rcu_read_lock();
1011 mpath = mesh_path_lookup(dst, sdata);
1012 if (!mpath) {
1013 rcu_read_unlock();
1014 return -ENOENT;
1015 }
1016 memcpy(dst, mpath->dst, ETH_ALEN);
1017 mpath_set_pinfo(mpath, next_hop, pinfo);
1018 rcu_read_unlock();
1019 return 0;
1020 }
1021
1022 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1023 int idx, u8 *dst, u8 *next_hop,
1024 struct mpath_info *pinfo)
1025 {
1026 struct ieee80211_sub_if_data *sdata;
1027 struct mesh_path *mpath;
1028
1029 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1030
1031 rcu_read_lock();
1032 mpath = mesh_path_lookup_by_idx(idx, sdata);
1033 if (!mpath) {
1034 rcu_read_unlock();
1035 return -ENOENT;
1036 }
1037 memcpy(dst, mpath->dst, ETH_ALEN);
1038 mpath_set_pinfo(mpath, next_hop, pinfo);
1039 rcu_read_unlock();
1040 return 0;
1041 }
1042
1043 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1044 struct net_device *dev,
1045 struct mesh_config *conf)
1046 {
1047 struct ieee80211_sub_if_data *sdata;
1048 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1049
1050 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1051 return 0;
1052 }
1053
1054 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1055 {
1056 return (mask >> (parm-1)) & 0x1;
1057 }
1058
1059 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1060 const struct mesh_setup *setup)
1061 {
1062 u8 *new_ie;
1063 const u8 *old_ie;
1064
1065 /* allocate information elements */
1066 new_ie = NULL;
1067 old_ie = ifmsh->ie;
1068
1069 if (setup->ie_len) {
1070 new_ie = kmemdup(setup->ie, setup->ie_len,
1071 GFP_KERNEL);
1072 if (!new_ie)
1073 return -ENOMEM;
1074 }
1075 ifmsh->ie_len = setup->ie_len;
1076 ifmsh->ie = new_ie;
1077 kfree(old_ie);
1078
1079 /* now copy the rest of the setup parameters */
1080 ifmsh->mesh_id_len = setup->mesh_id_len;
1081 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1082 ifmsh->mesh_pp_id = setup->path_sel_proto;
1083 ifmsh->mesh_pm_id = setup->path_metric;
1084 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1085 if (setup->is_authenticated)
1086 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1087 if (setup->is_secure)
1088 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1089
1090 return 0;
1091 }
1092
1093 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1094 struct net_device *dev, u32 mask,
1095 const struct mesh_config *nconf)
1096 {
1097 struct mesh_config *conf;
1098 struct ieee80211_sub_if_data *sdata;
1099 struct ieee80211_if_mesh *ifmsh;
1100
1101 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1102 ifmsh = &sdata->u.mesh;
1103
1104 /* Set the config options which we are interested in setting */
1105 conf = &(sdata->u.mesh.mshcfg);
1106 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1107 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1108 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1109 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1110 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1111 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1112 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1113 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1114 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1115 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1116 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1117 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1118 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1119 conf->dot11MeshTTL = nconf->element_ttl;
1120 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1121 conf->auto_open_plinks = nconf->auto_open_plinks;
1122 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1123 conf->dot11MeshHWMPmaxPREQretries =
1124 nconf->dot11MeshHWMPmaxPREQretries;
1125 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1126 conf->path_refresh_time = nconf->path_refresh_time;
1127 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1128 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1129 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1130 conf->dot11MeshHWMPactivePathTimeout =
1131 nconf->dot11MeshHWMPactivePathTimeout;
1132 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1133 conf->dot11MeshHWMPpreqMinInterval =
1134 nconf->dot11MeshHWMPpreqMinInterval;
1135 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1136 mask))
1137 conf->dot11MeshHWMPnetDiameterTraversalTime =
1138 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1139 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1140 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1141 ieee80211_mesh_root_setup(ifmsh);
1142 }
1143 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1144 /* our current gate announcement implementation rides on root
1145 * announcements, so require this ifmsh to also be a root node
1146 * */
1147 if (nconf->dot11MeshGateAnnouncementProtocol &&
1148 !conf->dot11MeshHWMPRootMode) {
1149 conf->dot11MeshHWMPRootMode = 1;
1150 ieee80211_mesh_root_setup(ifmsh);
1151 }
1152 conf->dot11MeshGateAnnouncementProtocol =
1153 nconf->dot11MeshGateAnnouncementProtocol;
1154 }
1155 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) {
1156 conf->dot11MeshHWMPRannInterval =
1157 nconf->dot11MeshHWMPRannInterval;
1158 }
1159 return 0;
1160 }
1161
1162 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1163 const struct mesh_config *conf,
1164 const struct mesh_setup *setup)
1165 {
1166 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1167 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1168 int err;
1169
1170 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1171 err = copy_mesh_setup(ifmsh, setup);
1172 if (err)
1173 return err;
1174 ieee80211_start_mesh(sdata);
1175
1176 return 0;
1177 }
1178
1179 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1180 {
1181 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1182
1183 ieee80211_stop_mesh(sdata);
1184
1185 return 0;
1186 }
1187 #endif
1188
1189 static int ieee80211_change_bss(struct wiphy *wiphy,
1190 struct net_device *dev,
1191 struct bss_parameters *params)
1192 {
1193 struct ieee80211_sub_if_data *sdata;
1194 u32 changed = 0;
1195
1196 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1197
1198 if (params->use_cts_prot >= 0) {
1199 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1200 changed |= BSS_CHANGED_ERP_CTS_PROT;
1201 }
1202 if (params->use_short_preamble >= 0) {
1203 sdata->vif.bss_conf.use_short_preamble =
1204 params->use_short_preamble;
1205 changed |= BSS_CHANGED_ERP_PREAMBLE;
1206 }
1207
1208 if (!sdata->vif.bss_conf.use_short_slot &&
1209 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1210 sdata->vif.bss_conf.use_short_slot = true;
1211 changed |= BSS_CHANGED_ERP_SLOT;
1212 }
1213
1214 if (params->use_short_slot_time >= 0) {
1215 sdata->vif.bss_conf.use_short_slot =
1216 params->use_short_slot_time;
1217 changed |= BSS_CHANGED_ERP_SLOT;
1218 }
1219
1220 if (params->basic_rates) {
1221 int i, j;
1222 u32 rates = 0;
1223 struct ieee80211_local *local = wiphy_priv(wiphy);
1224 struct ieee80211_supported_band *sband =
1225 wiphy->bands[local->oper_channel->band];
1226
1227 for (i = 0; i < params->basic_rates_len; i++) {
1228 int rate = (params->basic_rates[i] & 0x7f) * 5;
1229 for (j = 0; j < sband->n_bitrates; j++) {
1230 if (sband->bitrates[j].bitrate == rate)
1231 rates |= BIT(j);
1232 }
1233 }
1234 sdata->vif.bss_conf.basic_rates = rates;
1235 changed |= BSS_CHANGED_BASIC_RATES;
1236 }
1237
1238 if (params->ap_isolate >= 0) {
1239 if (params->ap_isolate)
1240 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1241 else
1242 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1243 }
1244
1245 if (params->ht_opmode >= 0) {
1246 sdata->vif.bss_conf.ht_operation_mode =
1247 (u16) params->ht_opmode;
1248 changed |= BSS_CHANGED_HT;
1249 }
1250
1251 ieee80211_bss_info_change_notify(sdata, changed);
1252
1253 return 0;
1254 }
1255
1256 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1257 struct ieee80211_txq_params *params)
1258 {
1259 struct ieee80211_local *local = wiphy_priv(wiphy);
1260 struct ieee80211_tx_queue_params p;
1261
1262 if (!local->ops->conf_tx)
1263 return -EOPNOTSUPP;
1264
1265 memset(&p, 0, sizeof(p));
1266 p.aifs = params->aifs;
1267 p.cw_max = params->cwmax;
1268 p.cw_min = params->cwmin;
1269 p.txop = params->txop;
1270
1271 /*
1272 * Setting tx queue params disables u-apsd because it's only
1273 * called in master mode.
1274 */
1275 p.uapsd = false;
1276
1277 if (params->queue >= local->hw.queues)
1278 return -EINVAL;
1279
1280 local->tx_conf[params->queue] = p;
1281 if (drv_conf_tx(local, params->queue, &p)) {
1282 wiphy_debug(local->hw.wiphy,
1283 "failed to set TX queue parameters for queue %d\n",
1284 params->queue);
1285 return -EINVAL;
1286 }
1287
1288 return 0;
1289 }
1290
1291 static int ieee80211_set_channel(struct wiphy *wiphy,
1292 struct net_device *netdev,
1293 struct ieee80211_channel *chan,
1294 enum nl80211_channel_type channel_type)
1295 {
1296 struct ieee80211_local *local = wiphy_priv(wiphy);
1297 struct ieee80211_sub_if_data *sdata = NULL;
1298 struct ieee80211_channel *old_oper;
1299 enum nl80211_channel_type old_oper_type;
1300 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
1301
1302 if (netdev)
1303 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1304
1305 switch (ieee80211_get_channel_mode(local, NULL)) {
1306 case CHAN_MODE_HOPPING:
1307 return -EBUSY;
1308 case CHAN_MODE_FIXED:
1309 if (local->oper_channel != chan)
1310 return -EBUSY;
1311 if (!sdata && local->_oper_channel_type == channel_type)
1312 return 0;
1313 break;
1314 case CHAN_MODE_UNDEFINED:
1315 break;
1316 }
1317
1318 if (sdata)
1319 old_vif_oper_type = sdata->vif.bss_conf.channel_type;
1320 old_oper_type = local->_oper_channel_type;
1321
1322 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1323 return -EBUSY;
1324
1325 old_oper = local->oper_channel;
1326 local->oper_channel = chan;
1327
1328 /* Update driver if changes were actually made. */
1329 if ((old_oper != local->oper_channel) ||
1330 (old_oper_type != local->_oper_channel_type))
1331 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1332
1333 if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
1334 old_vif_oper_type != sdata->vif.bss_conf.channel_type)
1335 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1336
1337 return 0;
1338 }
1339
1340 #ifdef CONFIG_PM
1341 static int ieee80211_suspend(struct wiphy *wiphy,
1342 struct cfg80211_wowlan *wowlan)
1343 {
1344 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1345 }
1346
1347 static int ieee80211_resume(struct wiphy *wiphy)
1348 {
1349 return __ieee80211_resume(wiphy_priv(wiphy));
1350 }
1351 #else
1352 #define ieee80211_suspend NULL
1353 #define ieee80211_resume NULL
1354 #endif
1355
1356 static int ieee80211_scan(struct wiphy *wiphy,
1357 struct net_device *dev,
1358 struct cfg80211_scan_request *req)
1359 {
1360 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1361
1362 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1363 case NL80211_IFTYPE_STATION:
1364 case NL80211_IFTYPE_ADHOC:
1365 case NL80211_IFTYPE_MESH_POINT:
1366 case NL80211_IFTYPE_P2P_CLIENT:
1367 break;
1368 case NL80211_IFTYPE_P2P_GO:
1369 if (sdata->local->ops->hw_scan)
1370 break;
1371 /*
1372 * FIXME: implement NoA while scanning in software,
1373 * for now fall through to allow scanning only when
1374 * beaconing hasn't been configured yet
1375 */
1376 case NL80211_IFTYPE_AP:
1377 if (sdata->u.ap.beacon)
1378 return -EOPNOTSUPP;
1379 break;
1380 default:
1381 return -EOPNOTSUPP;
1382 }
1383
1384 return ieee80211_request_scan(sdata, req);
1385 }
1386
1387 static int
1388 ieee80211_sched_scan_start(struct wiphy *wiphy,
1389 struct net_device *dev,
1390 struct cfg80211_sched_scan_request *req)
1391 {
1392 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1393
1394 if (!sdata->local->ops->sched_scan_start)
1395 return -EOPNOTSUPP;
1396
1397 return ieee80211_request_sched_scan_start(sdata, req);
1398 }
1399
1400 static int
1401 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1402 {
1403 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1404
1405 if (!sdata->local->ops->sched_scan_stop)
1406 return -EOPNOTSUPP;
1407
1408 return ieee80211_request_sched_scan_stop(sdata);
1409 }
1410
1411 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1412 struct cfg80211_auth_request *req)
1413 {
1414 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1415 }
1416
1417 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1418 struct cfg80211_assoc_request *req)
1419 {
1420 struct ieee80211_local *local = wiphy_priv(wiphy);
1421 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1422
1423 switch (ieee80211_get_channel_mode(local, sdata)) {
1424 case CHAN_MODE_HOPPING:
1425 return -EBUSY;
1426 case CHAN_MODE_FIXED:
1427 if (local->oper_channel == req->bss->channel)
1428 break;
1429 return -EBUSY;
1430 case CHAN_MODE_UNDEFINED:
1431 break;
1432 }
1433
1434 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1435 }
1436
1437 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1438 struct cfg80211_deauth_request *req,
1439 void *cookie)
1440 {
1441 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1442 req, cookie);
1443 }
1444
1445 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1446 struct cfg80211_disassoc_request *req,
1447 void *cookie)
1448 {
1449 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1450 req, cookie);
1451 }
1452
1453 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1454 struct cfg80211_ibss_params *params)
1455 {
1456 struct ieee80211_local *local = wiphy_priv(wiphy);
1457 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1458
1459 switch (ieee80211_get_channel_mode(local, sdata)) {
1460 case CHAN_MODE_HOPPING:
1461 return -EBUSY;
1462 case CHAN_MODE_FIXED:
1463 if (!params->channel_fixed)
1464 return -EBUSY;
1465 if (local->oper_channel == params->channel)
1466 break;
1467 return -EBUSY;
1468 case CHAN_MODE_UNDEFINED:
1469 break;
1470 }
1471
1472 return ieee80211_ibss_join(sdata, params);
1473 }
1474
1475 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1476 {
1477 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1478
1479 return ieee80211_ibss_leave(sdata);
1480 }
1481
1482 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1483 {
1484 struct ieee80211_local *local = wiphy_priv(wiphy);
1485 int err;
1486
1487 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1488 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1489
1490 if (err)
1491 return err;
1492 }
1493
1494 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1495 err = drv_set_coverage_class(local, wiphy->coverage_class);
1496
1497 if (err)
1498 return err;
1499 }
1500
1501 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1502 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1503
1504 if (err)
1505 return err;
1506 }
1507
1508 if (changed & WIPHY_PARAM_RETRY_SHORT)
1509 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1510 if (changed & WIPHY_PARAM_RETRY_LONG)
1511 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1512 if (changed &
1513 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1514 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1515
1516 return 0;
1517 }
1518
1519 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1520 enum nl80211_tx_power_setting type, int mbm)
1521 {
1522 struct ieee80211_local *local = wiphy_priv(wiphy);
1523 struct ieee80211_channel *chan = local->hw.conf.channel;
1524 u32 changes = 0;
1525
1526 switch (type) {
1527 case NL80211_TX_POWER_AUTOMATIC:
1528 local->user_power_level = -1;
1529 break;
1530 case NL80211_TX_POWER_LIMITED:
1531 if (mbm < 0 || (mbm % 100))
1532 return -EOPNOTSUPP;
1533 local->user_power_level = MBM_TO_DBM(mbm);
1534 break;
1535 case NL80211_TX_POWER_FIXED:
1536 if (mbm < 0 || (mbm % 100))
1537 return -EOPNOTSUPP;
1538 /* TODO: move to cfg80211 when it knows the channel */
1539 if (MBM_TO_DBM(mbm) > chan->max_power)
1540 return -EINVAL;
1541 local->user_power_level = MBM_TO_DBM(mbm);
1542 break;
1543 }
1544
1545 ieee80211_hw_config(local, changes);
1546
1547 return 0;
1548 }
1549
1550 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1551 {
1552 struct ieee80211_local *local = wiphy_priv(wiphy);
1553
1554 *dbm = local->hw.conf.power_level;
1555
1556 return 0;
1557 }
1558
1559 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1560 const u8 *addr)
1561 {
1562 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1563
1564 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1565
1566 return 0;
1567 }
1568
1569 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1570 {
1571 struct ieee80211_local *local = wiphy_priv(wiphy);
1572
1573 drv_rfkill_poll(local);
1574 }
1575
1576 #ifdef CONFIG_NL80211_TESTMODE
1577 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1578 {
1579 struct ieee80211_local *local = wiphy_priv(wiphy);
1580
1581 if (!local->ops->testmode_cmd)
1582 return -EOPNOTSUPP;
1583
1584 return local->ops->testmode_cmd(&local->hw, data, len);
1585 }
1586
1587 static int ieee80211_testmode_dump(struct wiphy *wiphy,
1588 struct sk_buff *skb,
1589 struct netlink_callback *cb,
1590 void *data, int len)
1591 {
1592 struct ieee80211_local *local = wiphy_priv(wiphy);
1593
1594 if (!local->ops->testmode_dump)
1595 return -EOPNOTSUPP;
1596
1597 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
1598 }
1599 #endif
1600
1601 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1602 enum ieee80211_smps_mode smps_mode)
1603 {
1604 const u8 *ap;
1605 enum ieee80211_smps_mode old_req;
1606 int err;
1607
1608 lockdep_assert_held(&sdata->u.mgd.mtx);
1609
1610 old_req = sdata->u.mgd.req_smps;
1611 sdata->u.mgd.req_smps = smps_mode;
1612
1613 if (old_req == smps_mode &&
1614 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1615 return 0;
1616
1617 /*
1618 * If not associated, or current association is not an HT
1619 * association, there's no need to send an action frame.
1620 */
1621 if (!sdata->u.mgd.associated ||
1622 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1623 mutex_lock(&sdata->local->iflist_mtx);
1624 ieee80211_recalc_smps(sdata->local);
1625 mutex_unlock(&sdata->local->iflist_mtx);
1626 return 0;
1627 }
1628
1629 ap = sdata->u.mgd.associated->bssid;
1630
1631 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1632 if (sdata->u.mgd.powersave)
1633 smps_mode = IEEE80211_SMPS_DYNAMIC;
1634 else
1635 smps_mode = IEEE80211_SMPS_OFF;
1636 }
1637
1638 /* send SM PS frame to AP */
1639 err = ieee80211_send_smps_action(sdata, smps_mode,
1640 ap, ap);
1641 if (err)
1642 sdata->u.mgd.req_smps = old_req;
1643
1644 return err;
1645 }
1646
1647 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1648 bool enabled, int timeout)
1649 {
1650 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1651 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1652
1653 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1654 return -EOPNOTSUPP;
1655
1656 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1657 return -EOPNOTSUPP;
1658
1659 if (enabled == sdata->u.mgd.powersave &&
1660 timeout == local->dynamic_ps_forced_timeout)
1661 return 0;
1662
1663 sdata->u.mgd.powersave = enabled;
1664 local->dynamic_ps_forced_timeout = timeout;
1665
1666 /* no change, but if automatic follow powersave */
1667 mutex_lock(&sdata->u.mgd.mtx);
1668 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1669 mutex_unlock(&sdata->u.mgd.mtx);
1670
1671 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1672 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1673
1674 ieee80211_recalc_ps(local, -1);
1675
1676 return 0;
1677 }
1678
1679 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1680 struct net_device *dev,
1681 s32 rssi_thold, u32 rssi_hyst)
1682 {
1683 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1684 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1685 struct ieee80211_vif *vif = &sdata->vif;
1686 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1687
1688 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1689 rssi_hyst == bss_conf->cqm_rssi_hyst)
1690 return 0;
1691
1692 bss_conf->cqm_rssi_thold = rssi_thold;
1693 bss_conf->cqm_rssi_hyst = rssi_hyst;
1694
1695 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1696 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1697 return -EOPNOTSUPP;
1698 return 0;
1699 }
1700
1701 /* tell the driver upon association, unless already associated */
1702 if (sdata->u.mgd.associated)
1703 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1704
1705 return 0;
1706 }
1707
1708 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1709 struct net_device *dev,
1710 const u8 *addr,
1711 const struct cfg80211_bitrate_mask *mask)
1712 {
1713 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1714 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1715 int i, ret;
1716
1717 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
1718 ret = drv_set_bitrate_mask(local, sdata, mask);
1719 if (ret)
1720 return ret;
1721 }
1722
1723 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1724 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1725
1726 return 0;
1727 }
1728
1729 static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1730 struct net_device *dev,
1731 struct ieee80211_channel *chan,
1732 enum nl80211_channel_type chantype,
1733 unsigned int duration, u64 *cookie)
1734 {
1735 int ret;
1736 u32 random_cookie;
1737
1738 lockdep_assert_held(&local->mtx);
1739
1740 if (local->hw_roc_cookie)
1741 return -EBUSY;
1742 /* must be nonzero */
1743 random_cookie = random32() | 1;
1744
1745 *cookie = random_cookie;
1746 local->hw_roc_dev = dev;
1747 local->hw_roc_cookie = random_cookie;
1748 local->hw_roc_channel = chan;
1749 local->hw_roc_channel_type = chantype;
1750 local->hw_roc_duration = duration;
1751 ret = drv_remain_on_channel(local, chan, chantype, duration);
1752 if (ret) {
1753 local->hw_roc_channel = NULL;
1754 local->hw_roc_cookie = 0;
1755 }
1756
1757 return ret;
1758 }
1759
1760 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1761 struct net_device *dev,
1762 struct ieee80211_channel *chan,
1763 enum nl80211_channel_type channel_type,
1764 unsigned int duration,
1765 u64 *cookie)
1766 {
1767 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1768 struct ieee80211_local *local = sdata->local;
1769
1770 if (local->ops->remain_on_channel) {
1771 int ret;
1772
1773 mutex_lock(&local->mtx);
1774 ret = ieee80211_remain_on_channel_hw(local, dev,
1775 chan, channel_type,
1776 duration, cookie);
1777 local->hw_roc_for_tx = false;
1778 mutex_unlock(&local->mtx);
1779
1780 return ret;
1781 }
1782
1783 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1784 duration, cookie);
1785 }
1786
1787 static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1788 u64 cookie)
1789 {
1790 int ret;
1791
1792 lockdep_assert_held(&local->mtx);
1793
1794 if (local->hw_roc_cookie != cookie)
1795 return -ENOENT;
1796
1797 ret = drv_cancel_remain_on_channel(local);
1798 if (ret)
1799 return ret;
1800
1801 local->hw_roc_cookie = 0;
1802 local->hw_roc_channel = NULL;
1803
1804 ieee80211_recalc_idle(local);
1805
1806 return 0;
1807 }
1808
1809 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1810 struct net_device *dev,
1811 u64 cookie)
1812 {
1813 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1814 struct ieee80211_local *local = sdata->local;
1815
1816 if (local->ops->cancel_remain_on_channel) {
1817 int ret;
1818
1819 mutex_lock(&local->mtx);
1820 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1821 mutex_unlock(&local->mtx);
1822
1823 return ret;
1824 }
1825
1826 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1827 }
1828
1829 static enum work_done_result
1830 ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1831 {
1832 /*
1833 * Use the data embedded in the work struct for reporting
1834 * here so if the driver mangled the SKB before dropping
1835 * it (which is the only way we really should get here)
1836 * then we don't report mangled data.
1837 *
1838 * If there was no wait time, then by the time we get here
1839 * the driver will likely not have reported the status yet,
1840 * so in that case userspace will have to deal with it.
1841 */
1842
1843 if (wk->offchan_tx.wait && wk->offchan_tx.frame)
1844 cfg80211_mgmt_tx_status(wk->sdata->dev,
1845 (unsigned long) wk->offchan_tx.frame,
1846 wk->ie, wk->ie_len, false, GFP_KERNEL);
1847
1848 return WORK_DONE_DESTROY;
1849 }
1850
1851 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1852 struct ieee80211_channel *chan, bool offchan,
1853 enum nl80211_channel_type channel_type,
1854 bool channel_type_valid, unsigned int wait,
1855 const u8 *buf, size_t len, u64 *cookie)
1856 {
1857 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1858 struct ieee80211_local *local = sdata->local;
1859 struct sk_buff *skb;
1860 struct sta_info *sta;
1861 struct ieee80211_work *wk;
1862 const struct ieee80211_mgmt *mgmt = (void *)buf;
1863 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1864 IEEE80211_TX_CTL_REQ_TX_STATUS;
1865 bool is_offchan = false;
1866
1867 /* Check that we are on the requested channel for transmission */
1868 if (chan != local->tmp_channel &&
1869 chan != local->oper_channel)
1870 is_offchan = true;
1871 if (channel_type_valid &&
1872 (channel_type != local->tmp_channel_type &&
1873 channel_type != local->_oper_channel_type))
1874 is_offchan = true;
1875
1876 if (chan == local->hw_roc_channel) {
1877 /* TODO: check channel type? */
1878 is_offchan = false;
1879 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1880 }
1881
1882 if (is_offchan && !offchan)
1883 return -EBUSY;
1884
1885 switch (sdata->vif.type) {
1886 case NL80211_IFTYPE_ADHOC:
1887 case NL80211_IFTYPE_AP:
1888 case NL80211_IFTYPE_AP_VLAN:
1889 case NL80211_IFTYPE_P2P_GO:
1890 case NL80211_IFTYPE_MESH_POINT:
1891 if (!ieee80211_is_action(mgmt->frame_control) ||
1892 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1893 break;
1894 rcu_read_lock();
1895 sta = sta_info_get(sdata, mgmt->da);
1896 rcu_read_unlock();
1897 if (!sta)
1898 return -ENOLINK;
1899 break;
1900 case NL80211_IFTYPE_STATION:
1901 case NL80211_IFTYPE_P2P_CLIENT:
1902 break;
1903 default:
1904 return -EOPNOTSUPP;
1905 }
1906
1907 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1908 if (!skb)
1909 return -ENOMEM;
1910 skb_reserve(skb, local->hw.extra_tx_headroom);
1911
1912 memcpy(skb_put(skb, len), buf, len);
1913
1914 IEEE80211_SKB_CB(skb)->flags = flags;
1915
1916 skb->dev = sdata->dev;
1917
1918 *cookie = (unsigned long) skb;
1919
1920 if (is_offchan && local->ops->remain_on_channel) {
1921 unsigned int duration;
1922 int ret;
1923
1924 mutex_lock(&local->mtx);
1925 /*
1926 * If the duration is zero, then the driver
1927 * wouldn't actually do anything. Set it to
1928 * 100 for now.
1929 *
1930 * TODO: cancel the off-channel operation
1931 * when we get the SKB's TX status and
1932 * the wait time was zero before.
1933 */
1934 duration = 100;
1935 if (wait)
1936 duration = wait;
1937 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
1938 channel_type,
1939 duration, cookie);
1940 if (ret) {
1941 kfree_skb(skb);
1942 mutex_unlock(&local->mtx);
1943 return ret;
1944 }
1945
1946 local->hw_roc_for_tx = true;
1947 local->hw_roc_duration = wait;
1948
1949 /*
1950 * queue up frame for transmission after
1951 * ieee80211_ready_on_channel call
1952 */
1953
1954 /* modify cookie to prevent API mismatches */
1955 *cookie ^= 2;
1956 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1957 local->hw_roc_skb = skb;
1958 local->hw_roc_skb_for_status = skb;
1959 mutex_unlock(&local->mtx);
1960
1961 return 0;
1962 }
1963
1964 /*
1965 * Can transmit right away if the channel was the
1966 * right one and there's no wait involved... If a
1967 * wait is involved, we might otherwise not be on
1968 * the right channel for long enough!
1969 */
1970 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
1971 ieee80211_tx_skb(sdata, skb);
1972 return 0;
1973 }
1974
1975 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
1976 if (!wk) {
1977 kfree_skb(skb);
1978 return -ENOMEM;
1979 }
1980
1981 wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
1982 wk->chan = chan;
1983 wk->chan_type = channel_type;
1984 wk->sdata = sdata;
1985 wk->done = ieee80211_offchan_tx_done;
1986 wk->offchan_tx.frame = skb;
1987 wk->offchan_tx.wait = wait;
1988 wk->ie_len = len;
1989 memcpy(wk->ie, buf, len);
1990
1991 ieee80211_add_work(wk);
1992 return 0;
1993 }
1994
1995 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1996 struct net_device *dev,
1997 u64 cookie)
1998 {
1999 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2000 struct ieee80211_local *local = sdata->local;
2001 struct ieee80211_work *wk;
2002 int ret = -ENOENT;
2003
2004 mutex_lock(&local->mtx);
2005
2006 if (local->ops->cancel_remain_on_channel) {
2007 cookie ^= 2;
2008 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
2009
2010 if (ret == 0) {
2011 kfree_skb(local->hw_roc_skb);
2012 local->hw_roc_skb = NULL;
2013 local->hw_roc_skb_for_status = NULL;
2014 }
2015
2016 mutex_unlock(&local->mtx);
2017
2018 return ret;
2019 }
2020
2021 list_for_each_entry(wk, &local->work_list, list) {
2022 if (wk->sdata != sdata)
2023 continue;
2024
2025 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
2026 continue;
2027
2028 if (cookie != (unsigned long) wk->offchan_tx.frame)
2029 continue;
2030
2031 wk->timeout = jiffies;
2032
2033 ieee80211_queue_work(&local->hw, &local->work_work);
2034 ret = 0;
2035 break;
2036 }
2037 mutex_unlock(&local->mtx);
2038
2039 return ret;
2040 }
2041
2042 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2043 struct net_device *dev,
2044 u16 frame_type, bool reg)
2045 {
2046 struct ieee80211_local *local = wiphy_priv(wiphy);
2047
2048 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
2049 return;
2050
2051 if (reg)
2052 local->probe_req_reg++;
2053 else
2054 local->probe_req_reg--;
2055
2056 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2057 }
2058
2059 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2060 {
2061 struct ieee80211_local *local = wiphy_priv(wiphy);
2062
2063 if (local->started)
2064 return -EOPNOTSUPP;
2065
2066 return drv_set_antenna(local, tx_ant, rx_ant);
2067 }
2068
2069 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2070 {
2071 struct ieee80211_local *local = wiphy_priv(wiphy);
2072
2073 return drv_get_antenna(local, tx_ant, rx_ant);
2074 }
2075
2076 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2077 {
2078 struct ieee80211_local *local = wiphy_priv(wiphy);
2079
2080 return drv_set_ringparam(local, tx, rx);
2081 }
2082
2083 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2084 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2085 {
2086 struct ieee80211_local *local = wiphy_priv(wiphy);
2087
2088 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2089 }
2090
2091 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2092 struct net_device *dev,
2093 struct cfg80211_gtk_rekey_data *data)
2094 {
2095 struct ieee80211_local *local = wiphy_priv(wiphy);
2096 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2097
2098 if (!local->ops->set_rekey_data)
2099 return -EOPNOTSUPP;
2100
2101 drv_set_rekey_data(local, sdata, data);
2102
2103 return 0;
2104 }
2105
2106 struct cfg80211_ops mac80211_config_ops = {
2107 .add_virtual_intf = ieee80211_add_iface,
2108 .del_virtual_intf = ieee80211_del_iface,
2109 .change_virtual_intf = ieee80211_change_iface,
2110 .add_key = ieee80211_add_key,
2111 .del_key = ieee80211_del_key,
2112 .get_key = ieee80211_get_key,
2113 .set_default_key = ieee80211_config_default_key,
2114 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
2115 .add_beacon = ieee80211_add_beacon,
2116 .set_beacon = ieee80211_set_beacon,
2117 .del_beacon = ieee80211_del_beacon,
2118 .add_station = ieee80211_add_station,
2119 .del_station = ieee80211_del_station,
2120 .change_station = ieee80211_change_station,
2121 .get_station = ieee80211_get_station,
2122 .dump_station = ieee80211_dump_station,
2123 .dump_survey = ieee80211_dump_survey,
2124 #ifdef CONFIG_MAC80211_MESH
2125 .add_mpath = ieee80211_add_mpath,
2126 .del_mpath = ieee80211_del_mpath,
2127 .change_mpath = ieee80211_change_mpath,
2128 .get_mpath = ieee80211_get_mpath,
2129 .dump_mpath = ieee80211_dump_mpath,
2130 .update_mesh_config = ieee80211_update_mesh_config,
2131 .get_mesh_config = ieee80211_get_mesh_config,
2132 .join_mesh = ieee80211_join_mesh,
2133 .leave_mesh = ieee80211_leave_mesh,
2134 #endif
2135 .change_bss = ieee80211_change_bss,
2136 .set_txq_params = ieee80211_set_txq_params,
2137 .set_channel = ieee80211_set_channel,
2138 .suspend = ieee80211_suspend,
2139 .resume = ieee80211_resume,
2140 .scan = ieee80211_scan,
2141 .sched_scan_start = ieee80211_sched_scan_start,
2142 .sched_scan_stop = ieee80211_sched_scan_stop,
2143 .auth = ieee80211_auth,
2144 .assoc = ieee80211_assoc,
2145 .deauth = ieee80211_deauth,
2146 .disassoc = ieee80211_disassoc,
2147 .join_ibss = ieee80211_join_ibss,
2148 .leave_ibss = ieee80211_leave_ibss,
2149 .set_wiphy_params = ieee80211_set_wiphy_params,
2150 .set_tx_power = ieee80211_set_tx_power,
2151 .get_tx_power = ieee80211_get_tx_power,
2152 .set_wds_peer = ieee80211_set_wds_peer,
2153 .rfkill_poll = ieee80211_rfkill_poll,
2154 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
2155 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
2156 .set_power_mgmt = ieee80211_set_power_mgmt,
2157 .set_bitrate_mask = ieee80211_set_bitrate_mask,
2158 .remain_on_channel = ieee80211_remain_on_channel,
2159 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2160 .mgmt_tx = ieee80211_mgmt_tx,
2161 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
2162 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
2163 .mgmt_frame_register = ieee80211_mgmt_frame_register,
2164 .set_antenna = ieee80211_set_antenna,
2165 .get_antenna = ieee80211_get_antenna,
2166 .set_ringparam = ieee80211_set_ringparam,
2167 .get_ringparam = ieee80211_get_ringparam,
2168 .set_rekey_data = ieee80211_set_rekey_data,
2169 };
linux-next