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kvm tools, setup: Create private directory
[linux-2.6/next.git] / net / mac80211 / cfg.c
blobbe70c70d3f5bfa6ecfb57e56d3b12eb06e6f78e9
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 u32 iv32;
213 u16 iv16;
214 int err = -ENOENT;
215
216 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
217
218 rcu_read_lock();
219
220 if (mac_addr) {
221 sta = sta_info_get_bss(sdata, mac_addr);
222 if (!sta)
223 goto out;
224
225 if (pairwise)
226 key = rcu_dereference(sta->ptk);
227 else if (key_idx < NUM_DEFAULT_KEYS)
228 key = rcu_dereference(sta->gtk[key_idx]);
229 } else
230 key = rcu_dereference(sdata->keys[key_idx]);
231
232 if (!key)
233 goto out;
234
235 memset(&params, 0, sizeof(params));
236
237 params.cipher = key->conf.cipher;
238
239 switch (key->conf.cipher) {
240 case WLAN_CIPHER_SUITE_TKIP:
241 iv32 = key->u.tkip.tx.iv32;
242 iv16 = key->u.tkip.tx.iv16;
243
244 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
245 drv_get_tkip_seq(sdata->local,
246 key->conf.hw_key_idx,
247 &iv32, &iv16);
248
249 seq[0] = iv16 & 0xff;
250 seq[1] = (iv16 >> 8) & 0xff;
251 seq[2] = iv32 & 0xff;
252 seq[3] = (iv32 >> 8) & 0xff;
253 seq[4] = (iv32 >> 16) & 0xff;
254 seq[5] = (iv32 >> 24) & 0xff;
255 params.seq = seq;
256 params.seq_len = 6;
257 break;
258 case WLAN_CIPHER_SUITE_CCMP:
259 seq[0] = key->u.ccmp.tx_pn[5];
260 seq[1] = key->u.ccmp.tx_pn[4];
261 seq[2] = key->u.ccmp.tx_pn[3];
262 seq[3] = key->u.ccmp.tx_pn[2];
263 seq[4] = key->u.ccmp.tx_pn[1];
264 seq[5] = key->u.ccmp.tx_pn[0];
265 params.seq = seq;
266 params.seq_len = 6;
267 break;
268 case WLAN_CIPHER_SUITE_AES_CMAC:
269 seq[0] = key->u.aes_cmac.tx_pn[5];
270 seq[1] = key->u.aes_cmac.tx_pn[4];
271 seq[2] = key->u.aes_cmac.tx_pn[3];
272 seq[3] = key->u.aes_cmac.tx_pn[2];
273 seq[4] = key->u.aes_cmac.tx_pn[1];
274 seq[5] = key->u.aes_cmac.tx_pn[0];
275 params.seq = seq;
276 params.seq_len = 6;
277 break;
278 }
279
280 params.key = key->conf.key;
281 params.key_len = key->conf.keylen;
282
283 callback(cookie, &params);
284 err = 0;
285
286 out:
287 rcu_read_unlock();
288 return err;
289 }
290
291 static int ieee80211_config_default_key(struct wiphy *wiphy,
292 struct net_device *dev,
293 u8 key_idx, bool uni,
294 bool multi)
295 {
296 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
297
298 ieee80211_set_default_key(sdata, key_idx, uni, multi);
299
300 return 0;
301 }
302
303 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
304 struct net_device *dev,
305 u8 key_idx)
306 {
307 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
308
309 ieee80211_set_default_mgmt_key(sdata, key_idx);
310
311 return 0;
312 }
313
314 static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
315 {
316 if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
317 struct ieee80211_supported_band *sband;
318 sband = sta->local->hw.wiphy->bands[
319 sta->local->hw.conf.channel->band];
320 rate->legacy = sband->bitrates[idx].bitrate;
321 } else
322 rate->mcs = idx;
323 }
324
325 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
326 {
327 struct ieee80211_sub_if_data *sdata = sta->sdata;
328 struct timespec uptime;
329
330 sinfo->generation = sdata->local->sta_generation;
331
332 sinfo->filled = STATION_INFO_INACTIVE_TIME |
333 STATION_INFO_RX_BYTES |
334 STATION_INFO_TX_BYTES |
335 STATION_INFO_RX_PACKETS |
336 STATION_INFO_TX_PACKETS |
337 STATION_INFO_TX_RETRIES |
338 STATION_INFO_TX_FAILED |
339 STATION_INFO_TX_BITRATE |
340 STATION_INFO_RX_BITRATE |
341 STATION_INFO_RX_DROP_MISC |
342 STATION_INFO_BSS_PARAM |
343 STATION_INFO_CONNECTED_TIME;
344
345 do_posix_clock_monotonic_gettime(&uptime);
346 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
347
348 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
349 sinfo->rx_bytes = sta->rx_bytes;
350 sinfo->tx_bytes = sta->tx_bytes;
351 sinfo->rx_packets = sta->rx_packets;
352 sinfo->tx_packets = sta->tx_packets;
353 sinfo->tx_retries = sta->tx_retry_count;
354 sinfo->tx_failed = sta->tx_retry_failed;
355 sinfo->rx_dropped_misc = sta->rx_dropped;
356
357 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
358 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
359 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
360 sinfo->signal = (s8)sta->last_signal;
361 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
362 }
363
364 sinfo->txrate.flags = 0;
365 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
366 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
367 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
368 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
369 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
370 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
371 rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx);
372
373 sinfo->rxrate.flags = 0;
374 if (sta->last_rx_rate_flag & RX_FLAG_HT)
375 sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
376 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
377 sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
378 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
379 sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
380 rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
381
382 if (ieee80211_vif_is_mesh(&sdata->vif)) {
383 #ifdef CONFIG_MAC80211_MESH
384 sinfo->filled |= STATION_INFO_LLID |
385 STATION_INFO_PLID |
386 STATION_INFO_PLINK_STATE;
387
388 sinfo->llid = le16_to_cpu(sta->llid);
389 sinfo->plid = le16_to_cpu(sta->plid);
390 sinfo->plink_state = sta->plink_state;
391 #endif
392 }
393
394 sinfo->bss_param.flags = 0;
395 if (sdata->vif.bss_conf.use_cts_prot)
396 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
397 if (sdata->vif.bss_conf.use_short_preamble)
398 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
399 if (sdata->vif.bss_conf.use_short_slot)
400 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
401 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
402 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
403 }
404
405
406 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
407 int idx, u8 *mac, struct station_info *sinfo)
408 {
409 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
410 struct sta_info *sta;
411 int ret = -ENOENT;
412
413 rcu_read_lock();
414
415 sta = sta_info_get_by_idx(sdata, idx);
416 if (sta) {
417 ret = 0;
418 memcpy(mac, sta->sta.addr, ETH_ALEN);
419 sta_set_sinfo(sta, sinfo);
420 }
421
422 rcu_read_unlock();
423
424 return ret;
425 }
426
427 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
428 int idx, struct survey_info *survey)
429 {
430 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
431
432 return drv_get_survey(local, idx, survey);
433 }
434
435 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
436 u8 *mac, struct station_info *sinfo)
437 {
438 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
439 struct sta_info *sta;
440 int ret = -ENOENT;
441
442 rcu_read_lock();
443
444 sta = sta_info_get_bss(sdata, mac);
445 if (sta) {
446 ret = 0;
447 sta_set_sinfo(sta, sinfo);
448 }
449
450 rcu_read_unlock();
451
452 return ret;
453 }
454
455 /*
456 * This handles both adding a beacon and setting new beacon info
457 */
458 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
459 struct beacon_parameters *params)
460 {
461 struct beacon_data *new, *old;
462 int new_head_len, new_tail_len;
463 int size;
464 int err = -EINVAL;
465
466 old = rtnl_dereference(sdata->u.ap.beacon);
467
468 /* head must not be zero-length */
469 if (params->head && !params->head_len)
470 return -EINVAL;
471
472 /*
473 * This is a kludge. beacon interval should really be part
474 * of the beacon information.
475 */
476 if (params->interval &&
477 (sdata->vif.bss_conf.beacon_int != params->interval)) {
478 sdata->vif.bss_conf.beacon_int = params->interval;
479 ieee80211_bss_info_change_notify(sdata,
480 BSS_CHANGED_BEACON_INT);
481 }
482
483 /* Need to have a beacon head if we don't have one yet */
484 if (!params->head && !old)
485 return err;
486
487 /* sorry, no way to start beaconing without dtim period */
488 if (!params->dtim_period && !old)
489 return err;
490
491 /* new or old head? */
492 if (params->head)
493 new_head_len = params->head_len;
494 else
495 new_head_len = old->head_len;
496
497 /* new or old tail? */
498 if (params->tail || !old)
499 /* params->tail_len will be zero for !params->tail */
500 new_tail_len = params->tail_len;
501 else
502 new_tail_len = old->tail_len;
503
504 size = sizeof(*new) + new_head_len + new_tail_len;
505
506 new = kzalloc(size, GFP_KERNEL);
507 if (!new)
508 return -ENOMEM;
509
510 /* start filling the new info now */
511
512 /* new or old dtim period? */
513 if (params->dtim_period)
514 new->dtim_period = params->dtim_period;
515 else
516 new->dtim_period = old->dtim_period;
517
518 /*
519 * pointers go into the block we allocated,
520 * memory is | beacon_data | head | tail |
521 */
522 new->head = ((u8 *) new) + sizeof(*new);
523 new->tail = new->head + new_head_len;
524 new->head_len = new_head_len;
525 new->tail_len = new_tail_len;
526
527 /* copy in head */
528 if (params->head)
529 memcpy(new->head, params->head, new_head_len);
530 else
531 memcpy(new->head, old->head, new_head_len);
532
533 /* copy in optional tail */
534 if (params->tail)
535 memcpy(new->tail, params->tail, new_tail_len);
536 else
537 if (old)
538 memcpy(new->tail, old->tail, new_tail_len);
539
540 sdata->vif.bss_conf.dtim_period = new->dtim_period;
541
542 rcu_assign_pointer(sdata->u.ap.beacon, new);
543
544 synchronize_rcu();
545
546 kfree(old);
547
548 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
549 BSS_CHANGED_BEACON);
550 return 0;
551 }
552
553 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
554 struct beacon_parameters *params)
555 {
556 struct ieee80211_sub_if_data *sdata;
557 struct beacon_data *old;
558
559 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
560
561 old = rtnl_dereference(sdata->u.ap.beacon);
562 if (old)
563 return -EALREADY;
564
565 return ieee80211_config_beacon(sdata, params);
566 }
567
568 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
569 struct beacon_parameters *params)
570 {
571 struct ieee80211_sub_if_data *sdata;
572 struct beacon_data *old;
573
574 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
575
576 old = rtnl_dereference(sdata->u.ap.beacon);
577 if (!old)
578 return -ENOENT;
579
580 return ieee80211_config_beacon(sdata, params);
581 }
582
583 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
584 {
585 struct ieee80211_sub_if_data *sdata;
586 struct beacon_data *old;
587
588 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
589
590 old = rtnl_dereference(sdata->u.ap.beacon);
591 if (!old)
592 return -ENOENT;
593
594 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
595 synchronize_rcu();
596 kfree(old);
597
598 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
599 return 0;
600 }
601
602 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
603 struct iapp_layer2_update {
604 u8 da[ETH_ALEN]; /* broadcast */
605 u8 sa[ETH_ALEN]; /* STA addr */
606 __be16 len; /* 6 */
607 u8 dsap; /* 0 */
608 u8 ssap; /* 0 */
609 u8 control;
610 u8 xid_info[3];
611 } __packed;
612
613 static void ieee80211_send_layer2_update(struct sta_info *sta)
614 {
615 struct iapp_layer2_update *msg;
616 struct sk_buff *skb;
617
618 /* Send Level 2 Update Frame to update forwarding tables in layer 2
619 * bridge devices */
620
621 skb = dev_alloc_skb(sizeof(*msg));
622 if (!skb)
623 return;
624 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
625
626 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
627 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
628
629 memset(msg->da, 0xff, ETH_ALEN);
630 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
631 msg->len = htons(6);
632 msg->dsap = 0;
633 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
634 msg->control = 0xaf; /* XID response lsb.1111F101.
635 * F=0 (no poll command; unsolicited frame) */
636 msg->xid_info[0] = 0x81; /* XID format identifier */
637 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
638 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
639
640 skb->dev = sta->sdata->dev;
641 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
642 memset(skb->cb, 0, sizeof(skb->cb));
643 netif_rx_ni(skb);
644 }
645
646 static void sta_apply_parameters(struct ieee80211_local *local,
647 struct sta_info *sta,
648 struct station_parameters *params)
649 {
650 unsigned long flags;
651 u32 rates;
652 int i, j;
653 struct ieee80211_supported_band *sband;
654 struct ieee80211_sub_if_data *sdata = sta->sdata;
655 u32 mask, set;
656
657 sband = local->hw.wiphy->bands[local->oper_channel->band];
658
659 spin_lock_irqsave(&sta->flaglock, flags);
660 mask = params->sta_flags_mask;
661 set = params->sta_flags_set;
662
663 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
664 sta->flags &= ~WLAN_STA_AUTHORIZED;
665 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
666 sta->flags |= WLAN_STA_AUTHORIZED;
667 }
668
669 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
670 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
671 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
672 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
673 }
674
675 if (mask & BIT(NL80211_STA_FLAG_WME)) {
676 sta->flags &= ~WLAN_STA_WME;
677 if (set & BIT(NL80211_STA_FLAG_WME))
678 sta->flags |= WLAN_STA_WME;
679 }
680
681 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
682 sta->flags &= ~WLAN_STA_MFP;
683 if (set & BIT(NL80211_STA_FLAG_MFP))
684 sta->flags |= WLAN_STA_MFP;
685 }
686
687 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
688 sta->flags &= ~WLAN_STA_AUTH;
689 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
690 sta->flags |= WLAN_STA_AUTH;
691 }
692 spin_unlock_irqrestore(&sta->flaglock, flags);
693
694 /*
695 * cfg80211 validates this (1-2007) and allows setting the AID
696 * only when creating a new station entry
697 */
698 if (params->aid)
699 sta->sta.aid = params->aid;
700
701 /*
702 * FIXME: updating the following information is racy when this
703 * function is called from ieee80211_change_station().
704 * However, all this information should be static so
705 * maybe we should just reject attemps to change it.
706 */
707
708 if (params->listen_interval >= 0)
709 sta->listen_interval = params->listen_interval;
710
711 if (params->supported_rates) {
712 rates = 0;
713
714 for (i = 0; i < params->supported_rates_len; i++) {
715 int rate = (params->supported_rates[i] & 0x7f) * 5;
716 for (j = 0; j < sband->n_bitrates; j++) {
717 if (sband->bitrates[j].bitrate == rate)
718 rates |= BIT(j);
719 }
720 }
721 sta->sta.supp_rates[local->oper_channel->band] = rates;
722 }
723
724 if (params->ht_capa)
725 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
726 params->ht_capa,
727 &sta->sta.ht_cap);
728
729 if (ieee80211_vif_is_mesh(&sdata->vif)) {
730 #ifdef CONFIG_MAC80211_MESH
731 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
732 switch (params->plink_state) {
733 case NL80211_PLINK_LISTEN:
734 case NL80211_PLINK_ESTAB:
735 case NL80211_PLINK_BLOCKED:
736 sta->plink_state = params->plink_state;
737 break;
738 default:
739 /* nothing */
740 break;
741 }
742 else
743 switch (params->plink_action) {
744 case PLINK_ACTION_OPEN:
745 mesh_plink_open(sta);
746 break;
747 case PLINK_ACTION_BLOCK:
748 mesh_plink_block(sta);
749 break;
750 }
751 #endif
752 }
753 }
754
755 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
756 u8 *mac, struct station_parameters *params)
757 {
758 struct ieee80211_local *local = wiphy_priv(wiphy);
759 struct sta_info *sta;
760 struct ieee80211_sub_if_data *sdata;
761 int err;
762 int layer2_update;
763
764 if (params->vlan) {
765 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
766
767 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
768 sdata->vif.type != NL80211_IFTYPE_AP)
769 return -EINVAL;
770 } else
771 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
772
773 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
774 return -EINVAL;
775
776 if (is_multicast_ether_addr(mac))
777 return -EINVAL;
778
779 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
780 if (!sta)
781 return -ENOMEM;
782
783 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
784
785 sta_apply_parameters(local, sta, params);
786
787 rate_control_rate_init(sta);
788
789 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
790 sdata->vif.type == NL80211_IFTYPE_AP;
791
792 err = sta_info_insert_rcu(sta);
793 if (err) {
794 rcu_read_unlock();
795 return err;
796 }
797
798 if (layer2_update)
799 ieee80211_send_layer2_update(sta);
800
801 rcu_read_unlock();
802
803 return 0;
804 }
805
806 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
807 u8 *mac)
808 {
809 struct ieee80211_local *local = wiphy_priv(wiphy);
810 struct ieee80211_sub_if_data *sdata;
811
812 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
813
814 if (mac)
815 return sta_info_destroy_addr_bss(sdata, mac);
816
817 sta_info_flush(local, sdata);
818 return 0;
819 }
820
821 static int ieee80211_change_station(struct wiphy *wiphy,
822 struct net_device *dev,
823 u8 *mac,
824 struct station_parameters *params)
825 {
826 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
827 struct ieee80211_local *local = wiphy_priv(wiphy);
828 struct sta_info *sta;
829 struct ieee80211_sub_if_data *vlansdata;
830
831 rcu_read_lock();
832
833 sta = sta_info_get_bss(sdata, mac);
834 if (!sta) {
835 rcu_read_unlock();
836 return -ENOENT;
837 }
838
839 if (params->vlan && params->vlan != sta->sdata->dev) {
840 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
841
842 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
843 vlansdata->vif.type != NL80211_IFTYPE_AP) {
844 rcu_read_unlock();
845 return -EINVAL;
846 }
847
848 if (params->vlan->ieee80211_ptr->use_4addr) {
849 if (vlansdata->u.vlan.sta) {
850 rcu_read_unlock();
851 return -EBUSY;
852 }
853
854 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
855 }
856
857 sta->sdata = vlansdata;
858 ieee80211_send_layer2_update(sta);
859 }
860
861 sta_apply_parameters(local, sta, params);
862
863 rcu_read_unlock();
864
865 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
866 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
867 ieee80211_recalc_ps(local, -1);
868
869 return 0;
870 }
871
872 #ifdef CONFIG_MAC80211_MESH
873 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
874 u8 *dst, u8 *next_hop)
875 {
876 struct ieee80211_sub_if_data *sdata;
877 struct mesh_path *mpath;
878 struct sta_info *sta;
879 int err;
880
881 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
882
883 rcu_read_lock();
884 sta = sta_info_get(sdata, next_hop);
885 if (!sta) {
886 rcu_read_unlock();
887 return -ENOENT;
888 }
889
890 err = mesh_path_add(dst, sdata);
891 if (err) {
892 rcu_read_unlock();
893 return err;
894 }
895
896 mpath = mesh_path_lookup(dst, sdata);
897 if (!mpath) {
898 rcu_read_unlock();
899 return -ENXIO;
900 }
901 mesh_path_fix_nexthop(mpath, sta);
902
903 rcu_read_unlock();
904 return 0;
905 }
906
907 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
908 u8 *dst)
909 {
910 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
911
912 if (dst)
913 return mesh_path_del(dst, sdata);
914
915 mesh_path_flush(sdata);
916 return 0;
917 }
918
919 static int ieee80211_change_mpath(struct wiphy *wiphy,
920 struct net_device *dev,
921 u8 *dst, u8 *next_hop)
922 {
923 struct ieee80211_sub_if_data *sdata;
924 struct mesh_path *mpath;
925 struct sta_info *sta;
926
927 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
928
929 rcu_read_lock();
930
931 sta = sta_info_get(sdata, next_hop);
932 if (!sta) {
933 rcu_read_unlock();
934 return -ENOENT;
935 }
936
937 mpath = mesh_path_lookup(dst, sdata);
938 if (!mpath) {
939 rcu_read_unlock();
940 return -ENOENT;
941 }
942
943 mesh_path_fix_nexthop(mpath, sta);
944
945 rcu_read_unlock();
946 return 0;
947 }
948
949 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
950 struct mpath_info *pinfo)
951 {
952 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
953
954 if (next_hop_sta)
955 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
956 else
957 memset(next_hop, 0, ETH_ALEN);
958
959 pinfo->generation = mesh_paths_generation;
960
961 pinfo->filled = MPATH_INFO_FRAME_QLEN |
962 MPATH_INFO_SN |
963 MPATH_INFO_METRIC |
964 MPATH_INFO_EXPTIME |
965 MPATH_INFO_DISCOVERY_TIMEOUT |
966 MPATH_INFO_DISCOVERY_RETRIES |
967 MPATH_INFO_FLAGS;
968
969 pinfo->frame_qlen = mpath->frame_queue.qlen;
970 pinfo->sn = mpath->sn;
971 pinfo->metric = mpath->metric;
972 if (time_before(jiffies, mpath->exp_time))
973 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
974 pinfo->discovery_timeout =
975 jiffies_to_msecs(mpath->discovery_timeout);
976 pinfo->discovery_retries = mpath->discovery_retries;
977 pinfo->flags = 0;
978 if (mpath->flags & MESH_PATH_ACTIVE)
979 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
980 if (mpath->flags & MESH_PATH_RESOLVING)
981 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
982 if (mpath->flags & MESH_PATH_SN_VALID)
983 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
984 if (mpath->flags & MESH_PATH_FIXED)
985 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
986 if (mpath->flags & MESH_PATH_RESOLVING)
987 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
988
989 pinfo->flags = mpath->flags;
990 }
991
992 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
993 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
994
995 {
996 struct ieee80211_sub_if_data *sdata;
997 struct mesh_path *mpath;
998
999 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1000
1001 rcu_read_lock();
1002 mpath = mesh_path_lookup(dst, sdata);
1003 if (!mpath) {
1004 rcu_read_unlock();
1005 return -ENOENT;
1006 }
1007 memcpy(dst, mpath->dst, ETH_ALEN);
1008 mpath_set_pinfo(mpath, next_hop, pinfo);
1009 rcu_read_unlock();
1010 return 0;
1011 }
1012
1013 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1014 int idx, u8 *dst, u8 *next_hop,
1015 struct mpath_info *pinfo)
1016 {
1017 struct ieee80211_sub_if_data *sdata;
1018 struct mesh_path *mpath;
1019
1020 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1021
1022 rcu_read_lock();
1023 mpath = mesh_path_lookup_by_idx(idx, sdata);
1024 if (!mpath) {
1025 rcu_read_unlock();
1026 return -ENOENT;
1027 }
1028 memcpy(dst, mpath->dst, ETH_ALEN);
1029 mpath_set_pinfo(mpath, next_hop, pinfo);
1030 rcu_read_unlock();
1031 return 0;
1032 }
1033
1034 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1035 struct net_device *dev,
1036 struct mesh_config *conf)
1037 {
1038 struct ieee80211_sub_if_data *sdata;
1039 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1040
1041 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1042 return 0;
1043 }
1044
1045 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1046 {
1047 return (mask >> (parm-1)) & 0x1;
1048 }
1049
1050 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1051 const struct mesh_setup *setup)
1052 {
1053 u8 *new_ie;
1054 const u8 *old_ie;
1055
1056 /* allocate information elements */
1057 new_ie = NULL;
1058 old_ie = ifmsh->ie;
1059
1060 if (setup->ie_len) {
1061 new_ie = kmemdup(setup->ie, setup->ie_len,
1062 GFP_KERNEL);
1063 if (!new_ie)
1064 return -ENOMEM;
1065 }
1066 ifmsh->ie_len = setup->ie_len;
1067 ifmsh->ie = new_ie;
1068 kfree(old_ie);
1069
1070 /* now copy the rest of the setup parameters */
1071 ifmsh->mesh_id_len = setup->mesh_id_len;
1072 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1073 ifmsh->mesh_pp_id = setup->path_sel_proto;
1074 ifmsh->mesh_pm_id = setup->path_metric;
1075 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1076 if (setup->is_authenticated)
1077 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1078 if (setup->is_secure)
1079 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1080
1081 return 0;
1082 }
1083
1084 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1085 struct net_device *dev, u32 mask,
1086 const struct mesh_config *nconf)
1087 {
1088 struct mesh_config *conf;
1089 struct ieee80211_sub_if_data *sdata;
1090 struct ieee80211_if_mesh *ifmsh;
1091
1092 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1093 ifmsh = &sdata->u.mesh;
1094
1095 /* Set the config options which we are interested in setting */
1096 conf = &(sdata->u.mesh.mshcfg);
1097 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1098 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1099 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1100 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1101 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1102 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1103 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1104 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1105 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1106 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1107 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1108 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1109 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1110 conf->dot11MeshTTL = nconf->element_ttl;
1111 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1112 conf->auto_open_plinks = nconf->auto_open_plinks;
1113 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1114 conf->dot11MeshHWMPmaxPREQretries =
1115 nconf->dot11MeshHWMPmaxPREQretries;
1116 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1117 conf->path_refresh_time = nconf->path_refresh_time;
1118 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1119 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1120 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1121 conf->dot11MeshHWMPactivePathTimeout =
1122 nconf->dot11MeshHWMPactivePathTimeout;
1123 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1124 conf->dot11MeshHWMPpreqMinInterval =
1125 nconf->dot11MeshHWMPpreqMinInterval;
1126 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1127 mask))
1128 conf->dot11MeshHWMPnetDiameterTraversalTime =
1129 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1130 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1131 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1132 ieee80211_mesh_root_setup(ifmsh);
1133 }
1134 return 0;
1135 }
1136
1137 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1138 const struct mesh_config *conf,
1139 const struct mesh_setup *setup)
1140 {
1141 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1142 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1143 int err;
1144
1145 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1146 err = copy_mesh_setup(ifmsh, setup);
1147 if (err)
1148 return err;
1149 ieee80211_start_mesh(sdata);
1150
1151 return 0;
1152 }
1153
1154 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1155 {
1156 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1157
1158 ieee80211_stop_mesh(sdata);
1159
1160 return 0;
1161 }
1162 #endif
1163
1164 static int ieee80211_change_bss(struct wiphy *wiphy,
1165 struct net_device *dev,
1166 struct bss_parameters *params)
1167 {
1168 struct ieee80211_sub_if_data *sdata;
1169 u32 changed = 0;
1170
1171 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1172
1173 if (params->use_cts_prot >= 0) {
1174 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1175 changed |= BSS_CHANGED_ERP_CTS_PROT;
1176 }
1177 if (params->use_short_preamble >= 0) {
1178 sdata->vif.bss_conf.use_short_preamble =
1179 params->use_short_preamble;
1180 changed |= BSS_CHANGED_ERP_PREAMBLE;
1181 }
1182
1183 if (!sdata->vif.bss_conf.use_short_slot &&
1184 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1185 sdata->vif.bss_conf.use_short_slot = true;
1186 changed |= BSS_CHANGED_ERP_SLOT;
1187 }
1188
1189 if (params->use_short_slot_time >= 0) {
1190 sdata->vif.bss_conf.use_short_slot =
1191 params->use_short_slot_time;
1192 changed |= BSS_CHANGED_ERP_SLOT;
1193 }
1194
1195 if (params->basic_rates) {
1196 int i, j;
1197 u32 rates = 0;
1198 struct ieee80211_local *local = wiphy_priv(wiphy);
1199 struct ieee80211_supported_band *sband =
1200 wiphy->bands[local->oper_channel->band];
1201
1202 for (i = 0; i < params->basic_rates_len; i++) {
1203 int rate = (params->basic_rates[i] & 0x7f) * 5;
1204 for (j = 0; j < sband->n_bitrates; j++) {
1205 if (sband->bitrates[j].bitrate == rate)
1206 rates |= BIT(j);
1207 }
1208 }
1209 sdata->vif.bss_conf.basic_rates = rates;
1210 changed |= BSS_CHANGED_BASIC_RATES;
1211 }
1212
1213 if (params->ap_isolate >= 0) {
1214 if (params->ap_isolate)
1215 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1216 else
1217 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1218 }
1219
1220 if (params->ht_opmode >= 0) {
1221 sdata->vif.bss_conf.ht_operation_mode =
1222 (u16) params->ht_opmode;
1223 changed |= BSS_CHANGED_HT;
1224 }
1225
1226 ieee80211_bss_info_change_notify(sdata, changed);
1227
1228 return 0;
1229 }
1230
1231 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1232 struct ieee80211_txq_params *params)
1233 {
1234 struct ieee80211_local *local = wiphy_priv(wiphy);
1235 struct ieee80211_tx_queue_params p;
1236
1237 if (!local->ops->conf_tx)
1238 return -EOPNOTSUPP;
1239
1240 memset(&p, 0, sizeof(p));
1241 p.aifs = params->aifs;
1242 p.cw_max = params->cwmax;
1243 p.cw_min = params->cwmin;
1244 p.txop = params->txop;
1245
1246 /*
1247 * Setting tx queue params disables u-apsd because it's only
1248 * called in master mode.
1249 */
1250 p.uapsd = false;
1251
1252 if (drv_conf_tx(local, params->queue, &p)) {
1253 wiphy_debug(local->hw.wiphy,
1254 "failed to set TX queue parameters for queue %d\n",
1255 params->queue);
1256 return -EINVAL;
1257 }
1258
1259 return 0;
1260 }
1261
1262 static int ieee80211_set_channel(struct wiphy *wiphy,
1263 struct net_device *netdev,
1264 struct ieee80211_channel *chan,
1265 enum nl80211_channel_type channel_type)
1266 {
1267 struct ieee80211_local *local = wiphy_priv(wiphy);
1268 struct ieee80211_sub_if_data *sdata = NULL;
1269 struct ieee80211_channel *old_oper;
1270 enum nl80211_channel_type old_oper_type;
1271 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
1272
1273 if (netdev)
1274 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1275
1276 switch (ieee80211_get_channel_mode(local, NULL)) {
1277 case CHAN_MODE_HOPPING:
1278 return -EBUSY;
1279 case CHAN_MODE_FIXED:
1280 if (local->oper_channel != chan)
1281 return -EBUSY;
1282 if (!sdata && local->_oper_channel_type == channel_type)
1283 return 0;
1284 break;
1285 case CHAN_MODE_UNDEFINED:
1286 break;
1287 }
1288
1289 if (sdata)
1290 old_vif_oper_type = sdata->vif.bss_conf.channel_type;
1291 old_oper_type = local->_oper_channel_type;
1292
1293 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1294 return -EBUSY;
1295
1296 old_oper = local->oper_channel;
1297 local->oper_channel = chan;
1298
1299 /* Update driver if changes were actually made. */
1300 if ((old_oper != local->oper_channel) ||
1301 (old_oper_type != local->_oper_channel_type))
1302 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1303
1304 if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
1305 old_vif_oper_type != sdata->vif.bss_conf.channel_type)
1306 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1307
1308 return 0;
1309 }
1310
1311 #ifdef CONFIG_PM
1312 static int ieee80211_suspend(struct wiphy *wiphy,
1313 struct cfg80211_wowlan *wowlan)
1314 {
1315 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1316 }
1317
1318 static int ieee80211_resume(struct wiphy *wiphy)
1319 {
1320 return __ieee80211_resume(wiphy_priv(wiphy));
1321 }
1322 #else
1323 #define ieee80211_suspend NULL
1324 #define ieee80211_resume NULL
1325 #endif
1326
1327 static int ieee80211_scan(struct wiphy *wiphy,
1328 struct net_device *dev,
1329 struct cfg80211_scan_request *req)
1330 {
1331 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1332
1333 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1334 case NL80211_IFTYPE_STATION:
1335 case NL80211_IFTYPE_ADHOC:
1336 case NL80211_IFTYPE_MESH_POINT:
1337 case NL80211_IFTYPE_P2P_CLIENT:
1338 break;
1339 case NL80211_IFTYPE_P2P_GO:
1340 if (sdata->local->ops->hw_scan)
1341 break;
1342 /*
1343 * FIXME: implement NoA while scanning in software,
1344 * for now fall through to allow scanning only when
1345 * beaconing hasn't been configured yet
1346 */
1347 case NL80211_IFTYPE_AP:
1348 if (sdata->u.ap.beacon)
1349 return -EOPNOTSUPP;
1350 break;
1351 default:
1352 return -EOPNOTSUPP;
1353 }
1354
1355 return ieee80211_request_scan(sdata, req);
1356 }
1357
1358 static int
1359 ieee80211_sched_scan_start(struct wiphy *wiphy,
1360 struct net_device *dev,
1361 struct cfg80211_sched_scan_request *req)
1362 {
1363 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1364
1365 if (!sdata->local->ops->sched_scan_start)
1366 return -EOPNOTSUPP;
1367
1368 return ieee80211_request_sched_scan_start(sdata, req);
1369 }
1370
1371 static int
1372 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1373 {
1374 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1375
1376 if (!sdata->local->ops->sched_scan_stop)
1377 return -EOPNOTSUPP;
1378
1379 return ieee80211_request_sched_scan_stop(sdata);
1380 }
1381
1382 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1383 struct cfg80211_auth_request *req)
1384 {
1385 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1386 }
1387
1388 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1389 struct cfg80211_assoc_request *req)
1390 {
1391 struct ieee80211_local *local = wiphy_priv(wiphy);
1392 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1393
1394 switch (ieee80211_get_channel_mode(local, sdata)) {
1395 case CHAN_MODE_HOPPING:
1396 return -EBUSY;
1397 case CHAN_MODE_FIXED:
1398 if (local->oper_channel == req->bss->channel)
1399 break;
1400 return -EBUSY;
1401 case CHAN_MODE_UNDEFINED:
1402 break;
1403 }
1404
1405 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1406 }
1407
1408 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1409 struct cfg80211_deauth_request *req,
1410 void *cookie)
1411 {
1412 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1413 req, cookie);
1414 }
1415
1416 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1417 struct cfg80211_disassoc_request *req,
1418 void *cookie)
1419 {
1420 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1421 req, cookie);
1422 }
1423
1424 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1425 struct cfg80211_ibss_params *params)
1426 {
1427 struct ieee80211_local *local = wiphy_priv(wiphy);
1428 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1429
1430 switch (ieee80211_get_channel_mode(local, sdata)) {
1431 case CHAN_MODE_HOPPING:
1432 return -EBUSY;
1433 case CHAN_MODE_FIXED:
1434 if (!params->channel_fixed)
1435 return -EBUSY;
1436 if (local->oper_channel == params->channel)
1437 break;
1438 return -EBUSY;
1439 case CHAN_MODE_UNDEFINED:
1440 break;
1441 }
1442
1443 return ieee80211_ibss_join(sdata, params);
1444 }
1445
1446 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1447 {
1448 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1449
1450 return ieee80211_ibss_leave(sdata);
1451 }
1452
1453 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1454 {
1455 struct ieee80211_local *local = wiphy_priv(wiphy);
1456 int err;
1457
1458 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1459 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1460
1461 if (err)
1462 return err;
1463 }
1464
1465 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1466 err = drv_set_coverage_class(local, wiphy->coverage_class);
1467
1468 if (err)
1469 return err;
1470 }
1471
1472 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1473 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1474
1475 if (err)
1476 return err;
1477 }
1478
1479 if (changed & WIPHY_PARAM_RETRY_SHORT)
1480 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1481 if (changed & WIPHY_PARAM_RETRY_LONG)
1482 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1483 if (changed &
1484 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1485 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1486
1487 return 0;
1488 }
1489
1490 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1491 enum nl80211_tx_power_setting type, int mbm)
1492 {
1493 struct ieee80211_local *local = wiphy_priv(wiphy);
1494 struct ieee80211_channel *chan = local->hw.conf.channel;
1495 u32 changes = 0;
1496
1497 switch (type) {
1498 case NL80211_TX_POWER_AUTOMATIC:
1499 local->user_power_level = -1;
1500 break;
1501 case NL80211_TX_POWER_LIMITED:
1502 if (mbm < 0 || (mbm % 100))
1503 return -EOPNOTSUPP;
1504 local->user_power_level = MBM_TO_DBM(mbm);
1505 break;
1506 case NL80211_TX_POWER_FIXED:
1507 if (mbm < 0 || (mbm % 100))
1508 return -EOPNOTSUPP;
1509 /* TODO: move to cfg80211 when it knows the channel */
1510 if (MBM_TO_DBM(mbm) > chan->max_power)
1511 return -EINVAL;
1512 local->user_power_level = MBM_TO_DBM(mbm);
1513 break;
1514 }
1515
1516 ieee80211_hw_config(local, changes);
1517
1518 return 0;
1519 }
1520
1521 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1522 {
1523 struct ieee80211_local *local = wiphy_priv(wiphy);
1524
1525 *dbm = local->hw.conf.power_level;
1526
1527 return 0;
1528 }
1529
1530 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1531 const u8 *addr)
1532 {
1533 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1534
1535 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1536
1537 return 0;
1538 }
1539
1540 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1541 {
1542 struct ieee80211_local *local = wiphy_priv(wiphy);
1543
1544 drv_rfkill_poll(local);
1545 }
1546
1547 #ifdef CONFIG_NL80211_TESTMODE
1548 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1549 {
1550 struct ieee80211_local *local = wiphy_priv(wiphy);
1551
1552 if (!local->ops->testmode_cmd)
1553 return -EOPNOTSUPP;
1554
1555 return local->ops->testmode_cmd(&local->hw, data, len);
1556 }
1557 #endif
1558
1559 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1560 enum ieee80211_smps_mode smps_mode)
1561 {
1562 const u8 *ap;
1563 enum ieee80211_smps_mode old_req;
1564 int err;
1565
1566 lockdep_assert_held(&sdata->u.mgd.mtx);
1567
1568 old_req = sdata->u.mgd.req_smps;
1569 sdata->u.mgd.req_smps = smps_mode;
1570
1571 if (old_req == smps_mode &&
1572 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1573 return 0;
1574
1575 /*
1576 * If not associated, or current association is not an HT
1577 * association, there's no need to send an action frame.
1578 */
1579 if (!sdata->u.mgd.associated ||
1580 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1581 mutex_lock(&sdata->local->iflist_mtx);
1582 ieee80211_recalc_smps(sdata->local);
1583 mutex_unlock(&sdata->local->iflist_mtx);
1584 return 0;
1585 }
1586
1587 ap = sdata->u.mgd.associated->bssid;
1588
1589 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1590 if (sdata->u.mgd.powersave)
1591 smps_mode = IEEE80211_SMPS_DYNAMIC;
1592 else
1593 smps_mode = IEEE80211_SMPS_OFF;
1594 }
1595
1596 /* send SM PS frame to AP */
1597 err = ieee80211_send_smps_action(sdata, smps_mode,
1598 ap, ap);
1599 if (err)
1600 sdata->u.mgd.req_smps = old_req;
1601
1602 return err;
1603 }
1604
1605 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1606 bool enabled, int timeout)
1607 {
1608 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1609 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1610
1611 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1612 return -EOPNOTSUPP;
1613
1614 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1615 return -EOPNOTSUPP;
1616
1617 if (enabled == sdata->u.mgd.powersave &&
1618 timeout == local->dynamic_ps_forced_timeout)
1619 return 0;
1620
1621 sdata->u.mgd.powersave = enabled;
1622 local->dynamic_ps_forced_timeout = timeout;
1623
1624 /* no change, but if automatic follow powersave */
1625 mutex_lock(&sdata->u.mgd.mtx);
1626 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1627 mutex_unlock(&sdata->u.mgd.mtx);
1628
1629 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1630 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1631
1632 ieee80211_recalc_ps(local, -1);
1633
1634 return 0;
1635 }
1636
1637 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1638 struct net_device *dev,
1639 s32 rssi_thold, u32 rssi_hyst)
1640 {
1641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1642 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1643 struct ieee80211_vif *vif = &sdata->vif;
1644 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1645
1646 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1647 rssi_hyst == bss_conf->cqm_rssi_hyst)
1648 return 0;
1649
1650 bss_conf->cqm_rssi_thold = rssi_thold;
1651 bss_conf->cqm_rssi_hyst = rssi_hyst;
1652
1653 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1654 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1655 return -EOPNOTSUPP;
1656 return 0;
1657 }
1658
1659 /* tell the driver upon association, unless already associated */
1660 if (sdata->u.mgd.associated)
1661 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1662
1663 return 0;
1664 }
1665
1666 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1667 struct net_device *dev,
1668 const u8 *addr,
1669 const struct cfg80211_bitrate_mask *mask)
1670 {
1671 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1672 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1673 int i, ret;
1674
1675 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
1676 ret = drv_set_bitrate_mask(local, sdata, mask);
1677 if (ret)
1678 return ret;
1679 }
1680
1681 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1682 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1683
1684 return 0;
1685 }
1686
1687 static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1688 struct net_device *dev,
1689 struct ieee80211_channel *chan,
1690 enum nl80211_channel_type chantype,
1691 unsigned int duration, u64 *cookie)
1692 {
1693 int ret;
1694 u32 random_cookie;
1695
1696 lockdep_assert_held(&local->mtx);
1697
1698 if (local->hw_roc_cookie)
1699 return -EBUSY;
1700 /* must be nonzero */
1701 random_cookie = random32() | 1;
1702
1703 *cookie = random_cookie;
1704 local->hw_roc_dev = dev;
1705 local->hw_roc_cookie = random_cookie;
1706 local->hw_roc_channel = chan;
1707 local->hw_roc_channel_type = chantype;
1708 local->hw_roc_duration = duration;
1709 ret = drv_remain_on_channel(local, chan, chantype, duration);
1710 if (ret) {
1711 local->hw_roc_channel = NULL;
1712 local->hw_roc_cookie = 0;
1713 }
1714
1715 return ret;
1716 }
1717
1718 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1719 struct net_device *dev,
1720 struct ieee80211_channel *chan,
1721 enum nl80211_channel_type channel_type,
1722 unsigned int duration,
1723 u64 *cookie)
1724 {
1725 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1726 struct ieee80211_local *local = sdata->local;
1727
1728 if (local->ops->remain_on_channel) {
1729 int ret;
1730
1731 mutex_lock(&local->mtx);
1732 ret = ieee80211_remain_on_channel_hw(local, dev,
1733 chan, channel_type,
1734 duration, cookie);
1735 local->hw_roc_for_tx = false;
1736 mutex_unlock(&local->mtx);
1737
1738 return ret;
1739 }
1740
1741 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1742 duration, cookie);
1743 }
1744
1745 static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1746 u64 cookie)
1747 {
1748 int ret;
1749
1750 lockdep_assert_held(&local->mtx);
1751
1752 if (local->hw_roc_cookie != cookie)
1753 return -ENOENT;
1754
1755 ret = drv_cancel_remain_on_channel(local);
1756 if (ret)
1757 return ret;
1758
1759 local->hw_roc_cookie = 0;
1760 local->hw_roc_channel = NULL;
1761
1762 ieee80211_recalc_idle(local);
1763
1764 return 0;
1765 }
1766
1767 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1768 struct net_device *dev,
1769 u64 cookie)
1770 {
1771 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1772 struct ieee80211_local *local = sdata->local;
1773
1774 if (local->ops->cancel_remain_on_channel) {
1775 int ret;
1776
1777 mutex_lock(&local->mtx);
1778 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1779 mutex_unlock(&local->mtx);
1780
1781 return ret;
1782 }
1783
1784 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1785 }
1786
1787 static enum work_done_result
1788 ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1789 {
1790 /*
1791 * Use the data embedded in the work struct for reporting
1792 * here so if the driver mangled the SKB before dropping
1793 * it (which is the only way we really should get here)
1794 * then we don't report mangled data.
1795 *
1796 * If there was no wait time, then by the time we get here
1797 * the driver will likely not have reported the status yet,
1798 * so in that case userspace will have to deal with it.
1799 */
1800
1801 if (wk->offchan_tx.wait && wk->offchan_tx.frame)
1802 cfg80211_mgmt_tx_status(wk->sdata->dev,
1803 (unsigned long) wk->offchan_tx.frame,
1804 wk->ie, wk->ie_len, false, GFP_KERNEL);
1805
1806 return WORK_DONE_DESTROY;
1807 }
1808
1809 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1810 struct ieee80211_channel *chan, bool offchan,
1811 enum nl80211_channel_type channel_type,
1812 bool channel_type_valid, unsigned int wait,
1813 const u8 *buf, size_t len, u64 *cookie)
1814 {
1815 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1816 struct ieee80211_local *local = sdata->local;
1817 struct sk_buff *skb;
1818 struct sta_info *sta;
1819 struct ieee80211_work *wk;
1820 const struct ieee80211_mgmt *mgmt = (void *)buf;
1821 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1822 IEEE80211_TX_CTL_REQ_TX_STATUS;
1823 bool is_offchan = false;
1824
1825 /* Check that we are on the requested channel for transmission */
1826 if (chan != local->tmp_channel &&
1827 chan != local->oper_channel)
1828 is_offchan = true;
1829 if (channel_type_valid &&
1830 (channel_type != local->tmp_channel_type &&
1831 channel_type != local->_oper_channel_type))
1832 is_offchan = true;
1833
1834 if (chan == local->hw_roc_channel) {
1835 /* TODO: check channel type? */
1836 is_offchan = false;
1837 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1838 }
1839
1840 if (is_offchan && !offchan)
1841 return -EBUSY;
1842
1843 switch (sdata->vif.type) {
1844 case NL80211_IFTYPE_ADHOC:
1845 case NL80211_IFTYPE_AP:
1846 case NL80211_IFTYPE_AP_VLAN:
1847 case NL80211_IFTYPE_P2P_GO:
1848 case NL80211_IFTYPE_MESH_POINT:
1849 if (!ieee80211_is_action(mgmt->frame_control) ||
1850 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1851 break;
1852 rcu_read_lock();
1853 sta = sta_info_get(sdata, mgmt->da);
1854 rcu_read_unlock();
1855 if (!sta)
1856 return -ENOLINK;
1857 break;
1858 case NL80211_IFTYPE_STATION:
1859 case NL80211_IFTYPE_P2P_CLIENT:
1860 break;
1861 default:
1862 return -EOPNOTSUPP;
1863 }
1864
1865 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1866 if (!skb)
1867 return -ENOMEM;
1868 skb_reserve(skb, local->hw.extra_tx_headroom);
1869
1870 memcpy(skb_put(skb, len), buf, len);
1871
1872 IEEE80211_SKB_CB(skb)->flags = flags;
1873
1874 skb->dev = sdata->dev;
1875
1876 *cookie = (unsigned long) skb;
1877
1878 if (is_offchan && local->ops->offchannel_tx) {
1879 int ret;
1880
1881 IEEE80211_SKB_CB(skb)->band = chan->band;
1882
1883 mutex_lock(&local->mtx);
1884
1885 if (local->hw_offchan_tx_cookie) {
1886 mutex_unlock(&local->mtx);
1887 return -EBUSY;
1888 }
1889
1890 /* TODO: bitrate control, TX processing? */
1891 ret = drv_offchannel_tx(local, skb, chan, channel_type, wait);
1892
1893 if (ret == 0)
1894 local->hw_offchan_tx_cookie = *cookie;
1895 mutex_unlock(&local->mtx);
1896
1897 /*
1898 * Allow driver to return 1 to indicate it wants to have the
1899 * frame transmitted with a remain_on_channel + regular TX.
1900 */
1901 if (ret != 1)
1902 return ret;
1903 }
1904
1905 if (is_offchan && local->ops->remain_on_channel) {
1906 unsigned int duration;
1907 int ret;
1908
1909 mutex_lock(&local->mtx);
1910 /*
1911 * If the duration is zero, then the driver
1912 * wouldn't actually do anything. Set it to
1913 * 100 for now.
1914 *
1915 * TODO: cancel the off-channel operation
1916 * when we get the SKB's TX status and
1917 * the wait time was zero before.
1918 */
1919 duration = 100;
1920 if (wait)
1921 duration = wait;
1922 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
1923 channel_type,
1924 duration, cookie);
1925 if (ret) {
1926 kfree_skb(skb);
1927 mutex_unlock(&local->mtx);
1928 return ret;
1929 }
1930
1931 local->hw_roc_for_tx = true;
1932 local->hw_roc_duration = wait;
1933
1934 /*
1935 * queue up frame for transmission after
1936 * ieee80211_ready_on_channel call
1937 */
1938
1939 /* modify cookie to prevent API mismatches */
1940 *cookie ^= 2;
1941 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1942 local->hw_roc_skb = skb;
1943 local->hw_roc_skb_for_status = skb;
1944 mutex_unlock(&local->mtx);
1945
1946 return 0;
1947 }
1948
1949 /*
1950 * Can transmit right away if the channel was the
1951 * right one and there's no wait involved... If a
1952 * wait is involved, we might otherwise not be on
1953 * the right channel for long enough!
1954 */
1955 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
1956 ieee80211_tx_skb(sdata, skb);
1957 return 0;
1958 }
1959
1960 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
1961 if (!wk) {
1962 kfree_skb(skb);
1963 return -ENOMEM;
1964 }
1965
1966 wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
1967 wk->chan = chan;
1968 wk->chan_type = channel_type;
1969 wk->sdata = sdata;
1970 wk->done = ieee80211_offchan_tx_done;
1971 wk->offchan_tx.frame = skb;
1972 wk->offchan_tx.wait = wait;
1973 wk->ie_len = len;
1974 memcpy(wk->ie, buf, len);
1975
1976 ieee80211_add_work(wk);
1977 return 0;
1978 }
1979
1980 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1981 struct net_device *dev,
1982 u64 cookie)
1983 {
1984 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1985 struct ieee80211_local *local = sdata->local;
1986 struct ieee80211_work *wk;
1987 int ret = -ENOENT;
1988
1989 mutex_lock(&local->mtx);
1990
1991 if (local->ops->offchannel_tx_cancel_wait &&
1992 local->hw_offchan_tx_cookie == cookie) {
1993 ret = drv_offchannel_tx_cancel_wait(local);
1994
1995 if (!ret)
1996 local->hw_offchan_tx_cookie = 0;
1997
1998 mutex_unlock(&local->mtx);
1999
2000 return ret;
2001 }
2002
2003 if (local->ops->cancel_remain_on_channel) {
2004 cookie ^= 2;
2005 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
2006
2007 if (ret == 0) {
2008 kfree_skb(local->hw_roc_skb);
2009 local->hw_roc_skb = NULL;
2010 local->hw_roc_skb_for_status = NULL;
2011 }
2012
2013 mutex_unlock(&local->mtx);
2014
2015 return ret;
2016 }
2017
2018 list_for_each_entry(wk, &local->work_list, list) {
2019 if (wk->sdata != sdata)
2020 continue;
2021
2022 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
2023 continue;
2024
2025 if (cookie != (unsigned long) wk->offchan_tx.frame)
2026 continue;
2027
2028 wk->timeout = jiffies;
2029
2030 ieee80211_queue_work(&local->hw, &local->work_work);
2031 ret = 0;
2032 break;
2033 }
2034 mutex_unlock(&local->mtx);
2035
2036 return ret;
2037 }
2038
2039 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2040 struct net_device *dev,
2041 u16 frame_type, bool reg)
2042 {
2043 struct ieee80211_local *local = wiphy_priv(wiphy);
2044
2045 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
2046 return;
2047
2048 if (reg)
2049 local->probe_req_reg++;
2050 else
2051 local->probe_req_reg--;
2052
2053 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2054 }
2055
2056 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2057 {
2058 struct ieee80211_local *local = wiphy_priv(wiphy);
2059
2060 if (local->started)
2061 return -EOPNOTSUPP;
2062
2063 return drv_set_antenna(local, tx_ant, rx_ant);
2064 }
2065
2066 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2067 {
2068 struct ieee80211_local *local = wiphy_priv(wiphy);
2069
2070 return drv_get_antenna(local, tx_ant, rx_ant);
2071 }
2072
2073 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2074 {
2075 struct ieee80211_local *local = wiphy_priv(wiphy);
2076
2077 return drv_set_ringparam(local, tx, rx);
2078 }
2079
2080 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2081 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2082 {
2083 struct ieee80211_local *local = wiphy_priv(wiphy);
2084
2085 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2086 }
2087
2088 struct cfg80211_ops mac80211_config_ops = {
2089 .add_virtual_intf = ieee80211_add_iface,
2090 .del_virtual_intf = ieee80211_del_iface,
2091 .change_virtual_intf = ieee80211_change_iface,
2092 .add_key = ieee80211_add_key,
2093 .del_key = ieee80211_del_key,
2094 .get_key = ieee80211_get_key,
2095 .set_default_key = ieee80211_config_default_key,
2096 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
2097 .add_beacon = ieee80211_add_beacon,
2098 .set_beacon = ieee80211_set_beacon,
2099 .del_beacon = ieee80211_del_beacon,
2100 .add_station = ieee80211_add_station,
2101 .del_station = ieee80211_del_station,
2102 .change_station = ieee80211_change_station,
2103 .get_station = ieee80211_get_station,
2104 .dump_station = ieee80211_dump_station,
2105 .dump_survey = ieee80211_dump_survey,
2106 #ifdef CONFIG_MAC80211_MESH
2107 .add_mpath = ieee80211_add_mpath,
2108 .del_mpath = ieee80211_del_mpath,
2109 .change_mpath = ieee80211_change_mpath,
2110 .get_mpath = ieee80211_get_mpath,
2111 .dump_mpath = ieee80211_dump_mpath,
2112 .update_mesh_config = ieee80211_update_mesh_config,
2113 .get_mesh_config = ieee80211_get_mesh_config,
2114 .join_mesh = ieee80211_join_mesh,
2115 .leave_mesh = ieee80211_leave_mesh,
2116 #endif
2117 .change_bss = ieee80211_change_bss,
2118 .set_txq_params = ieee80211_set_txq_params,
2119 .set_channel = ieee80211_set_channel,
2120 .suspend = ieee80211_suspend,
2121 .resume = ieee80211_resume,
2122 .scan = ieee80211_scan,
2123 .sched_scan_start = ieee80211_sched_scan_start,
2124 .sched_scan_stop = ieee80211_sched_scan_stop,
2125 .auth = ieee80211_auth,
2126 .assoc = ieee80211_assoc,
2127 .deauth = ieee80211_deauth,
2128 .disassoc = ieee80211_disassoc,
2129 .join_ibss = ieee80211_join_ibss,
2130 .leave_ibss = ieee80211_leave_ibss,
2131 .set_wiphy_params = ieee80211_set_wiphy_params,
2132 .set_tx_power = ieee80211_set_tx_power,
2133 .get_tx_power = ieee80211_get_tx_power,
2134 .set_wds_peer = ieee80211_set_wds_peer,
2135 .rfkill_poll = ieee80211_rfkill_poll,
2136 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
2137 .set_power_mgmt = ieee80211_set_power_mgmt,
2138 .set_bitrate_mask = ieee80211_set_bitrate_mask,
2139 .remain_on_channel = ieee80211_remain_on_channel,
2140 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2141 .mgmt_tx = ieee80211_mgmt_tx,
2142 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
2143 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
2144 .mgmt_frame_register = ieee80211_mgmt_frame_register,
2145 .set_antenna = ieee80211_set_antenna,
2146 .get_antenna = ieee80211_get_antenna,
2147 .set_ringparam = ieee80211_set_ringparam,
2148 .get_ringparam = ieee80211_get_ringparam,
2149 };
linux-next