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Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
[linux-2.6/next.git] / net / mac80211 / cfg.c
blob3d1b091d9b2ece8d632537a443867939db80706b
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 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_assign_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_assign_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 /*
701 * cfg80211 validates this (1-2007) and allows setting the AID
702 * only when creating a new station entry
703 */
704 if (params->aid)
705 sta->sta.aid = params->aid;
706
707 /*
708 * FIXME: updating the following information is racy when this
709 * function is called from ieee80211_change_station().
710 * However, all this information should be static so
711 * maybe we should just reject attemps to change it.
712 */
713
714 if (params->listen_interval >= 0)
715 sta->listen_interval = params->listen_interval;
716
717 if (params->supported_rates) {
718 rates = 0;
719
720 for (i = 0; i < params->supported_rates_len; i++) {
721 int rate = (params->supported_rates[i] & 0x7f) * 5;
722 for (j = 0; j < sband->n_bitrates; j++) {
723 if (sband->bitrates[j].bitrate == rate)
724 rates |= BIT(j);
725 }
726 }
727 sta->sta.supp_rates[local->oper_channel->band] = rates;
728 }
729
730 if (params->ht_capa)
731 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
732 params->ht_capa,
733 &sta->sta.ht_cap);
734
735 if (ieee80211_vif_is_mesh(&sdata->vif)) {
736 #ifdef CONFIG_MAC80211_MESH
737 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
738 switch (params->plink_state) {
739 case NL80211_PLINK_LISTEN:
740 case NL80211_PLINK_ESTAB:
741 case NL80211_PLINK_BLOCKED:
742 sta->plink_state = params->plink_state;
743 break;
744 default:
745 /* nothing */
746 break;
747 }
748 else
749 switch (params->plink_action) {
750 case PLINK_ACTION_OPEN:
751 mesh_plink_open(sta);
752 break;
753 case PLINK_ACTION_BLOCK:
754 mesh_plink_block(sta);
755 break;
756 }
757 #endif
758 }
759 }
760
761 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
762 u8 *mac, struct station_parameters *params)
763 {
764 struct ieee80211_local *local = wiphy_priv(wiphy);
765 struct sta_info *sta;
766 struct ieee80211_sub_if_data *sdata;
767 int err;
768 int layer2_update;
769
770 if (params->vlan) {
771 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
772
773 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
774 sdata->vif.type != NL80211_IFTYPE_AP)
775 return -EINVAL;
776 } else
777 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
778
779 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
780 return -EINVAL;
781
782 if (is_multicast_ether_addr(mac))
783 return -EINVAL;
784
785 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
786 if (!sta)
787 return -ENOMEM;
788
789 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
790
791 sta_apply_parameters(local, sta, params);
792
793 rate_control_rate_init(sta);
794
795 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
796 sdata->vif.type == NL80211_IFTYPE_AP;
797
798 err = sta_info_insert_rcu(sta);
799 if (err) {
800 rcu_read_unlock();
801 return err;
802 }
803
804 if (layer2_update)
805 ieee80211_send_layer2_update(sta);
806
807 rcu_read_unlock();
808
809 return 0;
810 }
811
812 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
813 u8 *mac)
814 {
815 struct ieee80211_local *local = wiphy_priv(wiphy);
816 struct ieee80211_sub_if_data *sdata;
817
818 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
819
820 if (mac)
821 return sta_info_destroy_addr_bss(sdata, mac);
822
823 sta_info_flush(local, sdata);
824 return 0;
825 }
826
827 static int ieee80211_change_station(struct wiphy *wiphy,
828 struct net_device *dev,
829 u8 *mac,
830 struct station_parameters *params)
831 {
832 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
833 struct ieee80211_local *local = wiphy_priv(wiphy);
834 struct sta_info *sta;
835 struct ieee80211_sub_if_data *vlansdata;
836
837 rcu_read_lock();
838
839 sta = sta_info_get_bss(sdata, mac);
840 if (!sta) {
841 rcu_read_unlock();
842 return -ENOENT;
843 }
844
845 if (params->vlan && params->vlan != sta->sdata->dev) {
846 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
847
848 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
849 vlansdata->vif.type != NL80211_IFTYPE_AP) {
850 rcu_read_unlock();
851 return -EINVAL;
852 }
853
854 if (params->vlan->ieee80211_ptr->use_4addr) {
855 if (vlansdata->u.vlan.sta) {
856 rcu_read_unlock();
857 return -EBUSY;
858 }
859
860 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
861 }
862
863 sta->sdata = vlansdata;
864 ieee80211_send_layer2_update(sta);
865 }
866
867 sta_apply_parameters(local, sta, params);
868
869 rcu_read_unlock();
870
871 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
872 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
873 ieee80211_recalc_ps(local, -1);
874
875 return 0;
876 }
877
878 #ifdef CONFIG_MAC80211_MESH
879 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
880 u8 *dst, u8 *next_hop)
881 {
882 struct ieee80211_sub_if_data *sdata;
883 struct mesh_path *mpath;
884 struct sta_info *sta;
885 int err;
886
887 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
888
889 rcu_read_lock();
890 sta = sta_info_get(sdata, next_hop);
891 if (!sta) {
892 rcu_read_unlock();
893 return -ENOENT;
894 }
895
896 err = mesh_path_add(dst, sdata);
897 if (err) {
898 rcu_read_unlock();
899 return err;
900 }
901
902 mpath = mesh_path_lookup(dst, sdata);
903 if (!mpath) {
904 rcu_read_unlock();
905 return -ENXIO;
906 }
907 mesh_path_fix_nexthop(mpath, sta);
908
909 rcu_read_unlock();
910 return 0;
911 }
912
913 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
914 u8 *dst)
915 {
916 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
917
918 if (dst)
919 return mesh_path_del(dst, sdata);
920
921 mesh_path_flush(sdata);
922 return 0;
923 }
924
925 static int ieee80211_change_mpath(struct wiphy *wiphy,
926 struct net_device *dev,
927 u8 *dst, u8 *next_hop)
928 {
929 struct ieee80211_sub_if_data *sdata;
930 struct mesh_path *mpath;
931 struct sta_info *sta;
932
933 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
934
935 rcu_read_lock();
936
937 sta = sta_info_get(sdata, next_hop);
938 if (!sta) {
939 rcu_read_unlock();
940 return -ENOENT;
941 }
942
943 mpath = mesh_path_lookup(dst, sdata);
944 if (!mpath) {
945 rcu_read_unlock();
946 return -ENOENT;
947 }
948
949 mesh_path_fix_nexthop(mpath, sta);
950
951 rcu_read_unlock();
952 return 0;
953 }
954
955 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
956 struct mpath_info *pinfo)
957 {
958 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
959
960 if (next_hop_sta)
961 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
962 else
963 memset(next_hop, 0, ETH_ALEN);
964
965 pinfo->generation = mesh_paths_generation;
966
967 pinfo->filled = MPATH_INFO_FRAME_QLEN |
968 MPATH_INFO_SN |
969 MPATH_INFO_METRIC |
970 MPATH_INFO_EXPTIME |
971 MPATH_INFO_DISCOVERY_TIMEOUT |
972 MPATH_INFO_DISCOVERY_RETRIES |
973 MPATH_INFO_FLAGS;
974
975 pinfo->frame_qlen = mpath->frame_queue.qlen;
976 pinfo->sn = mpath->sn;
977 pinfo->metric = mpath->metric;
978 if (time_before(jiffies, mpath->exp_time))
979 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
980 pinfo->discovery_timeout =
981 jiffies_to_msecs(mpath->discovery_timeout);
982 pinfo->discovery_retries = mpath->discovery_retries;
983 pinfo->flags = 0;
984 if (mpath->flags & MESH_PATH_ACTIVE)
985 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
986 if (mpath->flags & MESH_PATH_RESOLVING)
987 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
988 if (mpath->flags & MESH_PATH_SN_VALID)
989 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
990 if (mpath->flags & MESH_PATH_FIXED)
991 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
992 if (mpath->flags & MESH_PATH_RESOLVING)
993 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
994
995 pinfo->flags = mpath->flags;
996 }
997
998 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
999 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1000
1001 {
1002 struct ieee80211_sub_if_data *sdata;
1003 struct mesh_path *mpath;
1004
1005 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1006
1007 rcu_read_lock();
1008 mpath = mesh_path_lookup(dst, sdata);
1009 if (!mpath) {
1010 rcu_read_unlock();
1011 return -ENOENT;
1012 }
1013 memcpy(dst, mpath->dst, ETH_ALEN);
1014 mpath_set_pinfo(mpath, next_hop, pinfo);
1015 rcu_read_unlock();
1016 return 0;
1017 }
1018
1019 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1020 int idx, u8 *dst, u8 *next_hop,
1021 struct mpath_info *pinfo)
1022 {
1023 struct ieee80211_sub_if_data *sdata;
1024 struct mesh_path *mpath;
1025
1026 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1027
1028 rcu_read_lock();
1029 mpath = mesh_path_lookup_by_idx(idx, sdata);
1030 if (!mpath) {
1031 rcu_read_unlock();
1032 return -ENOENT;
1033 }
1034 memcpy(dst, mpath->dst, ETH_ALEN);
1035 mpath_set_pinfo(mpath, next_hop, pinfo);
1036 rcu_read_unlock();
1037 return 0;
1038 }
1039
1040 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1041 struct net_device *dev,
1042 struct mesh_config *conf)
1043 {
1044 struct ieee80211_sub_if_data *sdata;
1045 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1046
1047 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1048 return 0;
1049 }
1050
1051 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1052 {
1053 return (mask >> (parm-1)) & 0x1;
1054 }
1055
1056 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1057 const struct mesh_setup *setup)
1058 {
1059 u8 *new_ie;
1060 const u8 *old_ie;
1061
1062 /* allocate information elements */
1063 new_ie = NULL;
1064 old_ie = ifmsh->ie;
1065
1066 if (setup->ie_len) {
1067 new_ie = kmemdup(setup->ie, setup->ie_len,
1068 GFP_KERNEL);
1069 if (!new_ie)
1070 return -ENOMEM;
1071 }
1072 ifmsh->ie_len = setup->ie_len;
1073 ifmsh->ie = new_ie;
1074 kfree(old_ie);
1075
1076 /* now copy the rest of the setup parameters */
1077 ifmsh->mesh_id_len = setup->mesh_id_len;
1078 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1079 ifmsh->mesh_pp_id = setup->path_sel_proto;
1080 ifmsh->mesh_pm_id = setup->path_metric;
1081 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1082 if (setup->is_authenticated)
1083 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1084 if (setup->is_secure)
1085 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1086
1087 return 0;
1088 }
1089
1090 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1091 struct net_device *dev, u32 mask,
1092 const struct mesh_config *nconf)
1093 {
1094 struct mesh_config *conf;
1095 struct ieee80211_sub_if_data *sdata;
1096 struct ieee80211_if_mesh *ifmsh;
1097
1098 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1099 ifmsh = &sdata->u.mesh;
1100
1101 /* Set the config options which we are interested in setting */
1102 conf = &(sdata->u.mesh.mshcfg);
1103 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1104 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1105 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1106 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1107 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1108 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1109 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1110 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1111 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1112 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1113 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1114 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1115 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1116 conf->dot11MeshTTL = nconf->element_ttl;
1117 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1118 conf->auto_open_plinks = nconf->auto_open_plinks;
1119 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1120 conf->dot11MeshHWMPmaxPREQretries =
1121 nconf->dot11MeshHWMPmaxPREQretries;
1122 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1123 conf->path_refresh_time = nconf->path_refresh_time;
1124 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1125 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1126 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1127 conf->dot11MeshHWMPactivePathTimeout =
1128 nconf->dot11MeshHWMPactivePathTimeout;
1129 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1130 conf->dot11MeshHWMPpreqMinInterval =
1131 nconf->dot11MeshHWMPpreqMinInterval;
1132 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1133 mask))
1134 conf->dot11MeshHWMPnetDiameterTraversalTime =
1135 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1136 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1137 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1138 ieee80211_mesh_root_setup(ifmsh);
1139 }
1140 return 0;
1141 }
1142
1143 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1144 const struct mesh_config *conf,
1145 const struct mesh_setup *setup)
1146 {
1147 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1148 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1149 int err;
1150
1151 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1152 err = copy_mesh_setup(ifmsh, setup);
1153 if (err)
1154 return err;
1155 ieee80211_start_mesh(sdata);
1156
1157 return 0;
1158 }
1159
1160 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1161 {
1162 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1163
1164 ieee80211_stop_mesh(sdata);
1165
1166 return 0;
1167 }
1168 #endif
1169
1170 static int ieee80211_change_bss(struct wiphy *wiphy,
1171 struct net_device *dev,
1172 struct bss_parameters *params)
1173 {
1174 struct ieee80211_sub_if_data *sdata;
1175 u32 changed = 0;
1176
1177 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1178
1179 if (params->use_cts_prot >= 0) {
1180 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1181 changed |= BSS_CHANGED_ERP_CTS_PROT;
1182 }
1183 if (params->use_short_preamble >= 0) {
1184 sdata->vif.bss_conf.use_short_preamble =
1185 params->use_short_preamble;
1186 changed |= BSS_CHANGED_ERP_PREAMBLE;
1187 }
1188
1189 if (!sdata->vif.bss_conf.use_short_slot &&
1190 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1191 sdata->vif.bss_conf.use_short_slot = true;
1192 changed |= BSS_CHANGED_ERP_SLOT;
1193 }
1194
1195 if (params->use_short_slot_time >= 0) {
1196 sdata->vif.bss_conf.use_short_slot =
1197 params->use_short_slot_time;
1198 changed |= BSS_CHANGED_ERP_SLOT;
1199 }
1200
1201 if (params->basic_rates) {
1202 int i, j;
1203 u32 rates = 0;
1204 struct ieee80211_local *local = wiphy_priv(wiphy);
1205 struct ieee80211_supported_band *sband =
1206 wiphy->bands[local->oper_channel->band];
1207
1208 for (i = 0; i < params->basic_rates_len; i++) {
1209 int rate = (params->basic_rates[i] & 0x7f) * 5;
1210 for (j = 0; j < sband->n_bitrates; j++) {
1211 if (sband->bitrates[j].bitrate == rate)
1212 rates |= BIT(j);
1213 }
1214 }
1215 sdata->vif.bss_conf.basic_rates = rates;
1216 changed |= BSS_CHANGED_BASIC_RATES;
1217 }
1218
1219 if (params->ap_isolate >= 0) {
1220 if (params->ap_isolate)
1221 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1222 else
1223 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1224 }
1225
1226 if (params->ht_opmode >= 0) {
1227 sdata->vif.bss_conf.ht_operation_mode =
1228 (u16) params->ht_opmode;
1229 changed |= BSS_CHANGED_HT;
1230 }
1231
1232 ieee80211_bss_info_change_notify(sdata, changed);
1233
1234 return 0;
1235 }
1236
1237 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1238 struct ieee80211_txq_params *params)
1239 {
1240 struct ieee80211_local *local = wiphy_priv(wiphy);
1241 struct ieee80211_tx_queue_params p;
1242
1243 if (!local->ops->conf_tx)
1244 return -EOPNOTSUPP;
1245
1246 memset(&p, 0, sizeof(p));
1247 p.aifs = params->aifs;
1248 p.cw_max = params->cwmax;
1249 p.cw_min = params->cwmin;
1250 p.txop = params->txop;
1251
1252 /*
1253 * Setting tx queue params disables u-apsd because it's only
1254 * called in master mode.
1255 */
1256 p.uapsd = false;
1257
1258 if (params->queue >= local->hw.queues)
1259 return -EINVAL;
1260
1261 local->tx_conf[params->queue] = p;
1262 if (drv_conf_tx(local, params->queue, &p)) {
1263 wiphy_debug(local->hw.wiphy,
1264 "failed to set TX queue parameters for queue %d\n",
1265 params->queue);
1266 return -EINVAL;
1267 }
1268
1269 return 0;
1270 }
1271
1272 static int ieee80211_set_channel(struct wiphy *wiphy,
1273 struct net_device *netdev,
1274 struct ieee80211_channel *chan,
1275 enum nl80211_channel_type channel_type)
1276 {
1277 struct ieee80211_local *local = wiphy_priv(wiphy);
1278 struct ieee80211_sub_if_data *sdata = NULL;
1279 struct ieee80211_channel *old_oper;
1280 enum nl80211_channel_type old_oper_type;
1281 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
1282
1283 if (netdev)
1284 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1285
1286 switch (ieee80211_get_channel_mode(local, NULL)) {
1287 case CHAN_MODE_HOPPING:
1288 return -EBUSY;
1289 case CHAN_MODE_FIXED:
1290 if (local->oper_channel != chan)
1291 return -EBUSY;
1292 if (!sdata && local->_oper_channel_type == channel_type)
1293 return 0;
1294 break;
1295 case CHAN_MODE_UNDEFINED:
1296 break;
1297 }
1298
1299 if (sdata)
1300 old_vif_oper_type = sdata->vif.bss_conf.channel_type;
1301 old_oper_type = local->_oper_channel_type;
1302
1303 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1304 return -EBUSY;
1305
1306 old_oper = local->oper_channel;
1307 local->oper_channel = chan;
1308
1309 /* Update driver if changes were actually made. */
1310 if ((old_oper != local->oper_channel) ||
1311 (old_oper_type != local->_oper_channel_type))
1312 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1313
1314 if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
1315 old_vif_oper_type != sdata->vif.bss_conf.channel_type)
1316 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1317
1318 return 0;
1319 }
1320
1321 #ifdef CONFIG_PM
1322 static int ieee80211_suspend(struct wiphy *wiphy,
1323 struct cfg80211_wowlan *wowlan)
1324 {
1325 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1326 }
1327
1328 static int ieee80211_resume(struct wiphy *wiphy)
1329 {
1330 return __ieee80211_resume(wiphy_priv(wiphy));
1331 }
1332 #else
1333 #define ieee80211_suspend NULL
1334 #define ieee80211_resume NULL
1335 #endif
1336
1337 static int ieee80211_scan(struct wiphy *wiphy,
1338 struct net_device *dev,
1339 struct cfg80211_scan_request *req)
1340 {
1341 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1342
1343 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1344 case NL80211_IFTYPE_STATION:
1345 case NL80211_IFTYPE_ADHOC:
1346 case NL80211_IFTYPE_MESH_POINT:
1347 case NL80211_IFTYPE_P2P_CLIENT:
1348 break;
1349 case NL80211_IFTYPE_P2P_GO:
1350 if (sdata->local->ops->hw_scan)
1351 break;
1352 /*
1353 * FIXME: implement NoA while scanning in software,
1354 * for now fall through to allow scanning only when
1355 * beaconing hasn't been configured yet
1356 */
1357 case NL80211_IFTYPE_AP:
1358 if (sdata->u.ap.beacon)
1359 return -EOPNOTSUPP;
1360 break;
1361 default:
1362 return -EOPNOTSUPP;
1363 }
1364
1365 return ieee80211_request_scan(sdata, req);
1366 }
1367
1368 static int
1369 ieee80211_sched_scan_start(struct wiphy *wiphy,
1370 struct net_device *dev,
1371 struct cfg80211_sched_scan_request *req)
1372 {
1373 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1374
1375 if (!sdata->local->ops->sched_scan_start)
1376 return -EOPNOTSUPP;
1377
1378 return ieee80211_request_sched_scan_start(sdata, req);
1379 }
1380
1381 static int
1382 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1383 {
1384 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1385
1386 if (!sdata->local->ops->sched_scan_stop)
1387 return -EOPNOTSUPP;
1388
1389 return ieee80211_request_sched_scan_stop(sdata);
1390 }
1391
1392 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1393 struct cfg80211_auth_request *req)
1394 {
1395 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1396 }
1397
1398 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1399 struct cfg80211_assoc_request *req)
1400 {
1401 struct ieee80211_local *local = wiphy_priv(wiphy);
1402 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1403
1404 switch (ieee80211_get_channel_mode(local, sdata)) {
1405 case CHAN_MODE_HOPPING:
1406 return -EBUSY;
1407 case CHAN_MODE_FIXED:
1408 if (local->oper_channel == req->bss->channel)
1409 break;
1410 return -EBUSY;
1411 case CHAN_MODE_UNDEFINED:
1412 break;
1413 }
1414
1415 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1416 }
1417
1418 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1419 struct cfg80211_deauth_request *req,
1420 void *cookie)
1421 {
1422 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1423 req, cookie);
1424 }
1425
1426 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1427 struct cfg80211_disassoc_request *req,
1428 void *cookie)
1429 {
1430 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1431 req, cookie);
1432 }
1433
1434 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1435 struct cfg80211_ibss_params *params)
1436 {
1437 struct ieee80211_local *local = wiphy_priv(wiphy);
1438 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1439
1440 switch (ieee80211_get_channel_mode(local, sdata)) {
1441 case CHAN_MODE_HOPPING:
1442 return -EBUSY;
1443 case CHAN_MODE_FIXED:
1444 if (!params->channel_fixed)
1445 return -EBUSY;
1446 if (local->oper_channel == params->channel)
1447 break;
1448 return -EBUSY;
1449 case CHAN_MODE_UNDEFINED:
1450 break;
1451 }
1452
1453 return ieee80211_ibss_join(sdata, params);
1454 }
1455
1456 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1457 {
1458 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1459
1460 return ieee80211_ibss_leave(sdata);
1461 }
1462
1463 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1464 {
1465 struct ieee80211_local *local = wiphy_priv(wiphy);
1466 int err;
1467
1468 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1469 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1470
1471 if (err)
1472 return err;
1473 }
1474
1475 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1476 err = drv_set_coverage_class(local, wiphy->coverage_class);
1477
1478 if (err)
1479 return err;
1480 }
1481
1482 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1483 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1484
1485 if (err)
1486 return err;
1487 }
1488
1489 if (changed & WIPHY_PARAM_RETRY_SHORT)
1490 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1491 if (changed & WIPHY_PARAM_RETRY_LONG)
1492 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1493 if (changed &
1494 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1495 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1496
1497 return 0;
1498 }
1499
1500 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1501 enum nl80211_tx_power_setting type, int mbm)
1502 {
1503 struct ieee80211_local *local = wiphy_priv(wiphy);
1504 struct ieee80211_channel *chan = local->hw.conf.channel;
1505 u32 changes = 0;
1506
1507 switch (type) {
1508 case NL80211_TX_POWER_AUTOMATIC:
1509 local->user_power_level = -1;
1510 break;
1511 case NL80211_TX_POWER_LIMITED:
1512 if (mbm < 0 || (mbm % 100))
1513 return -EOPNOTSUPP;
1514 local->user_power_level = MBM_TO_DBM(mbm);
1515 break;
1516 case NL80211_TX_POWER_FIXED:
1517 if (mbm < 0 || (mbm % 100))
1518 return -EOPNOTSUPP;
1519 /* TODO: move to cfg80211 when it knows the channel */
1520 if (MBM_TO_DBM(mbm) > chan->max_power)
1521 return -EINVAL;
1522 local->user_power_level = MBM_TO_DBM(mbm);
1523 break;
1524 }
1525
1526 ieee80211_hw_config(local, changes);
1527
1528 return 0;
1529 }
1530
1531 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1532 {
1533 struct ieee80211_local *local = wiphy_priv(wiphy);
1534
1535 *dbm = local->hw.conf.power_level;
1536
1537 return 0;
1538 }
1539
1540 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1541 const u8 *addr)
1542 {
1543 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1544
1545 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1546
1547 return 0;
1548 }
1549
1550 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1551 {
1552 struct ieee80211_local *local = wiphy_priv(wiphy);
1553
1554 drv_rfkill_poll(local);
1555 }
1556
1557 #ifdef CONFIG_NL80211_TESTMODE
1558 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1559 {
1560 struct ieee80211_local *local = wiphy_priv(wiphy);
1561
1562 if (!local->ops->testmode_cmd)
1563 return -EOPNOTSUPP;
1564
1565 return local->ops->testmode_cmd(&local->hw, data, len);
1566 }
1567
1568 static int ieee80211_testmode_dump(struct wiphy *wiphy,
1569 struct sk_buff *skb,
1570 struct netlink_callback *cb,
1571 void *data, int len)
1572 {
1573 struct ieee80211_local *local = wiphy_priv(wiphy);
1574
1575 if (!local->ops->testmode_dump)
1576 return -EOPNOTSUPP;
1577
1578 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
1579 }
1580 #endif
1581
1582 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1583 enum ieee80211_smps_mode smps_mode)
1584 {
1585 const u8 *ap;
1586 enum ieee80211_smps_mode old_req;
1587 int err;
1588
1589 lockdep_assert_held(&sdata->u.mgd.mtx);
1590
1591 old_req = sdata->u.mgd.req_smps;
1592 sdata->u.mgd.req_smps = smps_mode;
1593
1594 if (old_req == smps_mode &&
1595 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1596 return 0;
1597
1598 /*
1599 * If not associated, or current association is not an HT
1600 * association, there's no need to send an action frame.
1601 */
1602 if (!sdata->u.mgd.associated ||
1603 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1604 mutex_lock(&sdata->local->iflist_mtx);
1605 ieee80211_recalc_smps(sdata->local);
1606 mutex_unlock(&sdata->local->iflist_mtx);
1607 return 0;
1608 }
1609
1610 ap = sdata->u.mgd.associated->bssid;
1611
1612 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1613 if (sdata->u.mgd.powersave)
1614 smps_mode = IEEE80211_SMPS_DYNAMIC;
1615 else
1616 smps_mode = IEEE80211_SMPS_OFF;
1617 }
1618
1619 /* send SM PS frame to AP */
1620 err = ieee80211_send_smps_action(sdata, smps_mode,
1621 ap, ap);
1622 if (err)
1623 sdata->u.mgd.req_smps = old_req;
1624
1625 return err;
1626 }
1627
1628 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1629 bool enabled, int timeout)
1630 {
1631 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1632 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1633
1634 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1635 return -EOPNOTSUPP;
1636
1637 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1638 return -EOPNOTSUPP;
1639
1640 if (enabled == sdata->u.mgd.powersave &&
1641 timeout == local->dynamic_ps_forced_timeout)
1642 return 0;
1643
1644 sdata->u.mgd.powersave = enabled;
1645 local->dynamic_ps_forced_timeout = timeout;
1646
1647 /* no change, but if automatic follow powersave */
1648 mutex_lock(&sdata->u.mgd.mtx);
1649 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1650 mutex_unlock(&sdata->u.mgd.mtx);
1651
1652 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1653 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1654
1655 ieee80211_recalc_ps(local, -1);
1656
1657 return 0;
1658 }
1659
1660 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1661 struct net_device *dev,
1662 s32 rssi_thold, u32 rssi_hyst)
1663 {
1664 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1665 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1666 struct ieee80211_vif *vif = &sdata->vif;
1667 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1668
1669 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1670 rssi_hyst == bss_conf->cqm_rssi_hyst)
1671 return 0;
1672
1673 bss_conf->cqm_rssi_thold = rssi_thold;
1674 bss_conf->cqm_rssi_hyst = rssi_hyst;
1675
1676 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1677 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1678 return -EOPNOTSUPP;
1679 return 0;
1680 }
1681
1682 /* tell the driver upon association, unless already associated */
1683 if (sdata->u.mgd.associated)
1684 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1685
1686 return 0;
1687 }
1688
1689 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1690 struct net_device *dev,
1691 const u8 *addr,
1692 const struct cfg80211_bitrate_mask *mask)
1693 {
1694 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1695 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1696 int i, ret;
1697
1698 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
1699 ret = drv_set_bitrate_mask(local, sdata, mask);
1700 if (ret)
1701 return ret;
1702 }
1703
1704 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1705 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1706
1707 return 0;
1708 }
1709
1710 static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1711 struct net_device *dev,
1712 struct ieee80211_channel *chan,
1713 enum nl80211_channel_type chantype,
1714 unsigned int duration, u64 *cookie)
1715 {
1716 int ret;
1717 u32 random_cookie;
1718
1719 lockdep_assert_held(&local->mtx);
1720
1721 if (local->hw_roc_cookie)
1722 return -EBUSY;
1723 /* must be nonzero */
1724 random_cookie = random32() | 1;
1725
1726 *cookie = random_cookie;
1727 local->hw_roc_dev = dev;
1728 local->hw_roc_cookie = random_cookie;
1729 local->hw_roc_channel = chan;
1730 local->hw_roc_channel_type = chantype;
1731 local->hw_roc_duration = duration;
1732 ret = drv_remain_on_channel(local, chan, chantype, duration);
1733 if (ret) {
1734 local->hw_roc_channel = NULL;
1735 local->hw_roc_cookie = 0;
1736 }
1737
1738 return ret;
1739 }
1740
1741 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1742 struct net_device *dev,
1743 struct ieee80211_channel *chan,
1744 enum nl80211_channel_type channel_type,
1745 unsigned int duration,
1746 u64 *cookie)
1747 {
1748 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1749 struct ieee80211_local *local = sdata->local;
1750
1751 if (local->ops->remain_on_channel) {
1752 int ret;
1753
1754 mutex_lock(&local->mtx);
1755 ret = ieee80211_remain_on_channel_hw(local, dev,
1756 chan, channel_type,
1757 duration, cookie);
1758 local->hw_roc_for_tx = false;
1759 mutex_unlock(&local->mtx);
1760
1761 return ret;
1762 }
1763
1764 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1765 duration, cookie);
1766 }
1767
1768 static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1769 u64 cookie)
1770 {
1771 int ret;
1772
1773 lockdep_assert_held(&local->mtx);
1774
1775 if (local->hw_roc_cookie != cookie)
1776 return -ENOENT;
1777
1778 ret = drv_cancel_remain_on_channel(local);
1779 if (ret)
1780 return ret;
1781
1782 local->hw_roc_cookie = 0;
1783 local->hw_roc_channel = NULL;
1784
1785 ieee80211_recalc_idle(local);
1786
1787 return 0;
1788 }
1789
1790 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1791 struct net_device *dev,
1792 u64 cookie)
1793 {
1794 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1795 struct ieee80211_local *local = sdata->local;
1796
1797 if (local->ops->cancel_remain_on_channel) {
1798 int ret;
1799
1800 mutex_lock(&local->mtx);
1801 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1802 mutex_unlock(&local->mtx);
1803
1804 return ret;
1805 }
1806
1807 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1808 }
1809
1810 static enum work_done_result
1811 ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1812 {
1813 /*
1814 * Use the data embedded in the work struct for reporting
1815 * here so if the driver mangled the SKB before dropping
1816 * it (which is the only way we really should get here)
1817 * then we don't report mangled data.
1818 *
1819 * If there was no wait time, then by the time we get here
1820 * the driver will likely not have reported the status yet,
1821 * so in that case userspace will have to deal with it.
1822 */
1823
1824 if (wk->offchan_tx.wait && wk->offchan_tx.frame)
1825 cfg80211_mgmt_tx_status(wk->sdata->dev,
1826 (unsigned long) wk->offchan_tx.frame,
1827 wk->ie, wk->ie_len, false, GFP_KERNEL);
1828
1829 return WORK_DONE_DESTROY;
1830 }
1831
1832 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1833 struct ieee80211_channel *chan, bool offchan,
1834 enum nl80211_channel_type channel_type,
1835 bool channel_type_valid, unsigned int wait,
1836 const u8 *buf, size_t len, u64 *cookie)
1837 {
1838 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1839 struct ieee80211_local *local = sdata->local;
1840 struct sk_buff *skb;
1841 struct sta_info *sta;
1842 struct ieee80211_work *wk;
1843 const struct ieee80211_mgmt *mgmt = (void *)buf;
1844 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1845 IEEE80211_TX_CTL_REQ_TX_STATUS;
1846 bool is_offchan = false;
1847
1848 /* Check that we are on the requested channel for transmission */
1849 if (chan != local->tmp_channel &&
1850 chan != local->oper_channel)
1851 is_offchan = true;
1852 if (channel_type_valid &&
1853 (channel_type != local->tmp_channel_type &&
1854 channel_type != local->_oper_channel_type))
1855 is_offchan = true;
1856
1857 if (chan == local->hw_roc_channel) {
1858 /* TODO: check channel type? */
1859 is_offchan = false;
1860 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1861 }
1862
1863 if (is_offchan && !offchan)
1864 return -EBUSY;
1865
1866 switch (sdata->vif.type) {
1867 case NL80211_IFTYPE_ADHOC:
1868 case NL80211_IFTYPE_AP:
1869 case NL80211_IFTYPE_AP_VLAN:
1870 case NL80211_IFTYPE_P2P_GO:
1871 case NL80211_IFTYPE_MESH_POINT:
1872 if (!ieee80211_is_action(mgmt->frame_control) ||
1873 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1874 break;
1875 rcu_read_lock();
1876 sta = sta_info_get(sdata, mgmt->da);
1877 rcu_read_unlock();
1878 if (!sta)
1879 return -ENOLINK;
1880 break;
1881 case NL80211_IFTYPE_STATION:
1882 case NL80211_IFTYPE_P2P_CLIENT:
1883 break;
1884 default:
1885 return -EOPNOTSUPP;
1886 }
1887
1888 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1889 if (!skb)
1890 return -ENOMEM;
1891 skb_reserve(skb, local->hw.extra_tx_headroom);
1892
1893 memcpy(skb_put(skb, len), buf, len);
1894
1895 IEEE80211_SKB_CB(skb)->flags = flags;
1896
1897 skb->dev = sdata->dev;
1898
1899 *cookie = (unsigned long) skb;
1900
1901 if (is_offchan && local->ops->offchannel_tx) {
1902 int ret;
1903
1904 IEEE80211_SKB_CB(skb)->band = chan->band;
1905
1906 mutex_lock(&local->mtx);
1907
1908 if (local->hw_offchan_tx_cookie) {
1909 mutex_unlock(&local->mtx);
1910 return -EBUSY;
1911 }
1912
1913 /* TODO: bitrate control, TX processing? */
1914 ret = drv_offchannel_tx(local, skb, chan, channel_type, wait);
1915
1916 if (ret == 0)
1917 local->hw_offchan_tx_cookie = *cookie;
1918 mutex_unlock(&local->mtx);
1919
1920 /*
1921 * Allow driver to return 1 to indicate it wants to have the
1922 * frame transmitted with a remain_on_channel + regular TX.
1923 */
1924 if (ret != 1)
1925 return ret;
1926 }
1927
1928 if (is_offchan && local->ops->remain_on_channel) {
1929 unsigned int duration;
1930 int ret;
1931
1932 mutex_lock(&local->mtx);
1933 /*
1934 * If the duration is zero, then the driver
1935 * wouldn't actually do anything. Set it to
1936 * 100 for now.
1937 *
1938 * TODO: cancel the off-channel operation
1939 * when we get the SKB's TX status and
1940 * the wait time was zero before.
1941 */
1942 duration = 100;
1943 if (wait)
1944 duration = wait;
1945 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
1946 channel_type,
1947 duration, cookie);
1948 if (ret) {
1949 kfree_skb(skb);
1950 mutex_unlock(&local->mtx);
1951 return ret;
1952 }
1953
1954 local->hw_roc_for_tx = true;
1955 local->hw_roc_duration = wait;
1956
1957 /*
1958 * queue up frame for transmission after
1959 * ieee80211_ready_on_channel call
1960 */
1961
1962 /* modify cookie to prevent API mismatches */
1963 *cookie ^= 2;
1964 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1965 local->hw_roc_skb = skb;
1966 local->hw_roc_skb_for_status = skb;
1967 mutex_unlock(&local->mtx);
1968
1969 return 0;
1970 }
1971
1972 /*
1973 * Can transmit right away if the channel was the
1974 * right one and there's no wait involved... If a
1975 * wait is involved, we might otherwise not be on
1976 * the right channel for long enough!
1977 */
1978 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
1979 ieee80211_tx_skb(sdata, skb);
1980 return 0;
1981 }
1982
1983 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
1984 if (!wk) {
1985 kfree_skb(skb);
1986 return -ENOMEM;
1987 }
1988
1989 wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
1990 wk->chan = chan;
1991 wk->chan_type = channel_type;
1992 wk->sdata = sdata;
1993 wk->done = ieee80211_offchan_tx_done;
1994 wk->offchan_tx.frame = skb;
1995 wk->offchan_tx.wait = wait;
1996 wk->ie_len = len;
1997 memcpy(wk->ie, buf, len);
1998
1999 ieee80211_add_work(wk);
2000 return 0;
2001 }
2002
2003 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2004 struct net_device *dev,
2005 u64 cookie)
2006 {
2007 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2008 struct ieee80211_local *local = sdata->local;
2009 struct ieee80211_work *wk;
2010 int ret = -ENOENT;
2011
2012 mutex_lock(&local->mtx);
2013
2014 if (local->ops->offchannel_tx_cancel_wait &&
2015 local->hw_offchan_tx_cookie == cookie) {
2016 ret = drv_offchannel_tx_cancel_wait(local);
2017
2018 if (!ret)
2019 local->hw_offchan_tx_cookie = 0;
2020
2021 mutex_unlock(&local->mtx);
2022
2023 return ret;
2024 }
2025
2026 if (local->ops->cancel_remain_on_channel) {
2027 cookie ^= 2;
2028 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
2029
2030 if (ret == 0) {
2031 kfree_skb(local->hw_roc_skb);
2032 local->hw_roc_skb = NULL;
2033 local->hw_roc_skb_for_status = NULL;
2034 }
2035
2036 mutex_unlock(&local->mtx);
2037
2038 return ret;
2039 }
2040
2041 list_for_each_entry(wk, &local->work_list, list) {
2042 if (wk->sdata != sdata)
2043 continue;
2044
2045 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
2046 continue;
2047
2048 if (cookie != (unsigned long) wk->offchan_tx.frame)
2049 continue;
2050
2051 wk->timeout = jiffies;
2052
2053 ieee80211_queue_work(&local->hw, &local->work_work);
2054 ret = 0;
2055 break;
2056 }
2057 mutex_unlock(&local->mtx);
2058
2059 return ret;
2060 }
2061
2062 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2063 struct net_device *dev,
2064 u16 frame_type, bool reg)
2065 {
2066 struct ieee80211_local *local = wiphy_priv(wiphy);
2067
2068 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
2069 return;
2070
2071 if (reg)
2072 local->probe_req_reg++;
2073 else
2074 local->probe_req_reg--;
2075
2076 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2077 }
2078
2079 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2080 {
2081 struct ieee80211_local *local = wiphy_priv(wiphy);
2082
2083 if (local->started)
2084 return -EOPNOTSUPP;
2085
2086 return drv_set_antenna(local, tx_ant, rx_ant);
2087 }
2088
2089 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2090 {
2091 struct ieee80211_local *local = wiphy_priv(wiphy);
2092
2093 return drv_get_antenna(local, tx_ant, rx_ant);
2094 }
2095
2096 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2097 {
2098 struct ieee80211_local *local = wiphy_priv(wiphy);
2099
2100 return drv_set_ringparam(local, tx, rx);
2101 }
2102
2103 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2104 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2105 {
2106 struct ieee80211_local *local = wiphy_priv(wiphy);
2107
2108 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2109 }
2110
2111 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2112 struct net_device *dev,
2113 struct cfg80211_gtk_rekey_data *data)
2114 {
2115 struct ieee80211_local *local = wiphy_priv(wiphy);
2116 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2117
2118 if (!local->ops->set_rekey_data)
2119 return -EOPNOTSUPP;
2120
2121 drv_set_rekey_data(local, sdata, data);
2122
2123 return 0;
2124 }
2125
2126 struct cfg80211_ops mac80211_config_ops = {
2127 .add_virtual_intf = ieee80211_add_iface,
2128 .del_virtual_intf = ieee80211_del_iface,
2129 .change_virtual_intf = ieee80211_change_iface,
2130 .add_key = ieee80211_add_key,
2131 .del_key = ieee80211_del_key,
2132 .get_key = ieee80211_get_key,
2133 .set_default_key = ieee80211_config_default_key,
2134 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
2135 .add_beacon = ieee80211_add_beacon,
2136 .set_beacon = ieee80211_set_beacon,
2137 .del_beacon = ieee80211_del_beacon,
2138 .add_station = ieee80211_add_station,
2139 .del_station = ieee80211_del_station,
2140 .change_station = ieee80211_change_station,
2141 .get_station = ieee80211_get_station,
2142 .dump_station = ieee80211_dump_station,
2143 .dump_survey = ieee80211_dump_survey,
2144 #ifdef CONFIG_MAC80211_MESH
2145 .add_mpath = ieee80211_add_mpath,
2146 .del_mpath = ieee80211_del_mpath,
2147 .change_mpath = ieee80211_change_mpath,
2148 .get_mpath = ieee80211_get_mpath,
2149 .dump_mpath = ieee80211_dump_mpath,
2150 .update_mesh_config = ieee80211_update_mesh_config,
2151 .get_mesh_config = ieee80211_get_mesh_config,
2152 .join_mesh = ieee80211_join_mesh,
2153 .leave_mesh = ieee80211_leave_mesh,
2154 #endif
2155 .change_bss = ieee80211_change_bss,
2156 .set_txq_params = ieee80211_set_txq_params,
2157 .set_channel = ieee80211_set_channel,
2158 .suspend = ieee80211_suspend,
2159 .resume = ieee80211_resume,
2160 .scan = ieee80211_scan,
2161 .sched_scan_start = ieee80211_sched_scan_start,
2162 .sched_scan_stop = ieee80211_sched_scan_stop,
2163 .auth = ieee80211_auth,
2164 .assoc = ieee80211_assoc,
2165 .deauth = ieee80211_deauth,
2166 .disassoc = ieee80211_disassoc,
2167 .join_ibss = ieee80211_join_ibss,
2168 .leave_ibss = ieee80211_leave_ibss,
2169 .set_wiphy_params = ieee80211_set_wiphy_params,
2170 .set_tx_power = ieee80211_set_tx_power,
2171 .get_tx_power = ieee80211_get_tx_power,
2172 .set_wds_peer = ieee80211_set_wds_peer,
2173 .rfkill_poll = ieee80211_rfkill_poll,
2174 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
2175 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
2176 .set_power_mgmt = ieee80211_set_power_mgmt,
2177 .set_bitrate_mask = ieee80211_set_bitrate_mask,
2178 .remain_on_channel = ieee80211_remain_on_channel,
2179 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2180 .mgmt_tx = ieee80211_mgmt_tx,
2181 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
2182 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
2183 .mgmt_frame_register = ieee80211_mgmt_frame_register,
2184 .set_antenna = ieee80211_set_antenna,
2185 .get_antenna = ieee80211_get_antenna,
2186 .set_ringparam = ieee80211_set_ringparam,
2187 .get_ringparam = ieee80211_get_ringparam,
2188 .set_rekey_data = ieee80211_set_rekey_data,
2189 };
linux-next