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cfg80211/mac80211: apply station uAPSD parameters selectively
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / net / mac80211 / cfg.c
blob13061ebc93efdef87a8aca62998e6c26c9b70ac0
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 static void ieee80211_config_ap_ssid(struct ieee80211_sub_if_data *sdata,
459 struct beacon_parameters *params)
460 {
461 struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
462
463 bss_conf->ssid_len = params->ssid_len;
464
465 if (params->ssid_len)
466 memcpy(bss_conf->ssid, params->ssid, params->ssid_len);
467
468 bss_conf->hidden_ssid =
469 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
470 }
471
472 /*
473 * This handles both adding a beacon and setting new beacon info
474 */
475 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
476 struct beacon_parameters *params)
477 {
478 struct beacon_data *new, *old;
479 int new_head_len, new_tail_len;
480 int size;
481 int err = -EINVAL;
482
483 old = rtnl_dereference(sdata->u.ap.beacon);
484
485 /* head must not be zero-length */
486 if (params->head && !params->head_len)
487 return -EINVAL;
488
489 /*
490 * This is a kludge. beacon interval should really be part
491 * of the beacon information.
492 */
493 if (params->interval &&
494 (sdata->vif.bss_conf.beacon_int != params->interval)) {
495 sdata->vif.bss_conf.beacon_int = params->interval;
496 ieee80211_bss_info_change_notify(sdata,
497 BSS_CHANGED_BEACON_INT);
498 }
499
500 /* Need to have a beacon head if we don't have one yet */
501 if (!params->head && !old)
502 return err;
503
504 /* sorry, no way to start beaconing without dtim period */
505 if (!params->dtim_period && !old)
506 return err;
507
508 /* new or old head? */
509 if (params->head)
510 new_head_len = params->head_len;
511 else
512 new_head_len = old->head_len;
513
514 /* new or old tail? */
515 if (params->tail || !old)
516 /* params->tail_len will be zero for !params->tail */
517 new_tail_len = params->tail_len;
518 else
519 new_tail_len = old->tail_len;
520
521 size = sizeof(*new) + new_head_len + new_tail_len;
522
523 new = kzalloc(size, GFP_KERNEL);
524 if (!new)
525 return -ENOMEM;
526
527 /* start filling the new info now */
528
529 /* new or old dtim period? */
530 if (params->dtim_period)
531 new->dtim_period = params->dtim_period;
532 else
533 new->dtim_period = old->dtim_period;
534
535 /*
536 * pointers go into the block we allocated,
537 * memory is | beacon_data | head | tail |
538 */
539 new->head = ((u8 *) new) + sizeof(*new);
540 new->tail = new->head + new_head_len;
541 new->head_len = new_head_len;
542 new->tail_len = new_tail_len;
543
544 /* copy in head */
545 if (params->head)
546 memcpy(new->head, params->head, new_head_len);
547 else
548 memcpy(new->head, old->head, new_head_len);
549
550 /* copy in optional tail */
551 if (params->tail)
552 memcpy(new->tail, params->tail, new_tail_len);
553 else
554 if (old)
555 memcpy(new->tail, old->tail, new_tail_len);
556
557 sdata->vif.bss_conf.dtim_period = new->dtim_period;
558
559 rcu_assign_pointer(sdata->u.ap.beacon, new);
560
561 synchronize_rcu();
562
563 kfree(old);
564
565 ieee80211_config_ap_ssid(sdata, params);
566
567 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
568 BSS_CHANGED_BEACON |
569 BSS_CHANGED_SSID);
570 return 0;
571 }
572
573 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
574 struct beacon_parameters *params)
575 {
576 struct ieee80211_sub_if_data *sdata;
577 struct beacon_data *old;
578
579 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
580
581 old = rtnl_dereference(sdata->u.ap.beacon);
582 if (old)
583 return -EALREADY;
584
585 return ieee80211_config_beacon(sdata, params);
586 }
587
588 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
589 struct beacon_parameters *params)
590 {
591 struct ieee80211_sub_if_data *sdata;
592 struct beacon_data *old;
593
594 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
595
596 old = rtnl_dereference(sdata->u.ap.beacon);
597 if (!old)
598 return -ENOENT;
599
600 return ieee80211_config_beacon(sdata, params);
601 }
602
603 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
604 {
605 struct ieee80211_sub_if_data *sdata;
606 struct beacon_data *old;
607
608 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
609
610 old = rtnl_dereference(sdata->u.ap.beacon);
611 if (!old)
612 return -ENOENT;
613
614 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
615 synchronize_rcu();
616 kfree(old);
617
618 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
619 return 0;
620 }
621
622 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
623 struct iapp_layer2_update {
624 u8 da[ETH_ALEN]; /* broadcast */
625 u8 sa[ETH_ALEN]; /* STA addr */
626 __be16 len; /* 6 */
627 u8 dsap; /* 0 */
628 u8 ssap; /* 0 */
629 u8 control;
630 u8 xid_info[3];
631 } __packed;
632
633 static void ieee80211_send_layer2_update(struct sta_info *sta)
634 {
635 struct iapp_layer2_update *msg;
636 struct sk_buff *skb;
637
638 /* Send Level 2 Update Frame to update forwarding tables in layer 2
639 * bridge devices */
640
641 skb = dev_alloc_skb(sizeof(*msg));
642 if (!skb)
643 return;
644 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
645
646 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
647 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
648
649 memset(msg->da, 0xff, ETH_ALEN);
650 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
651 msg->len = htons(6);
652 msg->dsap = 0;
653 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
654 msg->control = 0xaf; /* XID response lsb.1111F101.
655 * F=0 (no poll command; unsolicited frame) */
656 msg->xid_info[0] = 0x81; /* XID format identifier */
657 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
658 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
659
660 skb->dev = sta->sdata->dev;
661 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
662 memset(skb->cb, 0, sizeof(skb->cb));
663 netif_rx_ni(skb);
664 }
665
666 static void sta_apply_parameters(struct ieee80211_local *local,
667 struct sta_info *sta,
668 struct station_parameters *params)
669 {
670 unsigned long flags;
671 u32 rates;
672 int i, j;
673 struct ieee80211_supported_band *sband;
674 struct ieee80211_sub_if_data *sdata = sta->sdata;
675 u32 mask, set;
676
677 sband = local->hw.wiphy->bands[local->oper_channel->band];
678
679 spin_lock_irqsave(&sta->flaglock, flags);
680 mask = params->sta_flags_mask;
681 set = params->sta_flags_set;
682
683 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
684 sta->flags &= ~WLAN_STA_AUTHORIZED;
685 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
686 sta->flags |= WLAN_STA_AUTHORIZED;
687 }
688
689 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
690 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
691 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
692 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
693 }
694
695 if (mask & BIT(NL80211_STA_FLAG_WME)) {
696 sta->flags &= ~WLAN_STA_WME;
697 sta->sta.wme = false;
698 if (set & BIT(NL80211_STA_FLAG_WME)) {
699 sta->flags |= WLAN_STA_WME;
700 sta->sta.wme = true;
701 }
702 }
703
704 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
705 sta->flags &= ~WLAN_STA_MFP;
706 if (set & BIT(NL80211_STA_FLAG_MFP))
707 sta->flags |= WLAN_STA_MFP;
708 }
709
710 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
711 sta->flags &= ~WLAN_STA_AUTH;
712 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
713 sta->flags |= WLAN_STA_AUTH;
714 }
715 spin_unlock_irqrestore(&sta->flaglock, flags);
716
717 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
718 sta->sta.uapsd_queues = params->uapsd_queues;
719 sta->sta.max_sp = params->max_sp;
720 }
721
722 /*
723 * cfg80211 validates this (1-2007) and allows setting the AID
724 * only when creating a new station entry
725 */
726 if (params->aid)
727 sta->sta.aid = params->aid;
728
729 /*
730 * FIXME: updating the following information is racy when this
731 * function is called from ieee80211_change_station().
732 * However, all this information should be static so
733 * maybe we should just reject attemps to change it.
734 */
735
736 if (params->listen_interval >= 0)
737 sta->listen_interval = params->listen_interval;
738
739 if (params->supported_rates) {
740 rates = 0;
741
742 for (i = 0; i < params->supported_rates_len; i++) {
743 int rate = (params->supported_rates[i] & 0x7f) * 5;
744 for (j = 0; j < sband->n_bitrates; j++) {
745 if (sband->bitrates[j].bitrate == rate)
746 rates |= BIT(j);
747 }
748 }
749 sta->sta.supp_rates[local->oper_channel->band] = rates;
750 }
751
752 if (params->ht_capa)
753 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
754 params->ht_capa,
755 &sta->sta.ht_cap);
756
757 if (ieee80211_vif_is_mesh(&sdata->vif)) {
758 #ifdef CONFIG_MAC80211_MESH
759 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
760 switch (params->plink_state) {
761 case NL80211_PLINK_LISTEN:
762 case NL80211_PLINK_ESTAB:
763 case NL80211_PLINK_BLOCKED:
764 sta->plink_state = params->plink_state;
765 break;
766 default:
767 /* nothing */
768 break;
769 }
770 else
771 switch (params->plink_action) {
772 case PLINK_ACTION_OPEN:
773 mesh_plink_open(sta);
774 break;
775 case PLINK_ACTION_BLOCK:
776 mesh_plink_block(sta);
777 break;
778 }
779 #endif
780 }
781 }
782
783 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
784 u8 *mac, struct station_parameters *params)
785 {
786 struct ieee80211_local *local = wiphy_priv(wiphy);
787 struct sta_info *sta;
788 struct ieee80211_sub_if_data *sdata;
789 int err;
790 int layer2_update;
791
792 if (params->vlan) {
793 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
794
795 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
796 sdata->vif.type != NL80211_IFTYPE_AP)
797 return -EINVAL;
798 } else
799 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
800
801 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
802 return -EINVAL;
803
804 if (is_multicast_ether_addr(mac))
805 return -EINVAL;
806
807 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
808 if (!sta)
809 return -ENOMEM;
810
811 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
812
813 sta_apply_parameters(local, sta, params);
814
815 rate_control_rate_init(sta);
816
817 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
818 sdata->vif.type == NL80211_IFTYPE_AP;
819
820 err = sta_info_insert_rcu(sta);
821 if (err) {
822 rcu_read_unlock();
823 return err;
824 }
825
826 if (layer2_update)
827 ieee80211_send_layer2_update(sta);
828
829 rcu_read_unlock();
830
831 return 0;
832 }
833
834 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
835 u8 *mac)
836 {
837 struct ieee80211_local *local = wiphy_priv(wiphy);
838 struct ieee80211_sub_if_data *sdata;
839
840 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
841
842 if (mac)
843 return sta_info_destroy_addr_bss(sdata, mac);
844
845 sta_info_flush(local, sdata);
846 return 0;
847 }
848
849 static int ieee80211_change_station(struct wiphy *wiphy,
850 struct net_device *dev,
851 u8 *mac,
852 struct station_parameters *params)
853 {
854 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
855 struct ieee80211_local *local = wiphy_priv(wiphy);
856 struct sta_info *sta;
857 struct ieee80211_sub_if_data *vlansdata;
858
859 rcu_read_lock();
860
861 sta = sta_info_get_bss(sdata, mac);
862 if (!sta) {
863 rcu_read_unlock();
864 return -ENOENT;
865 }
866
867 if (params->vlan && params->vlan != sta->sdata->dev) {
868 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
869
870 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
871 vlansdata->vif.type != NL80211_IFTYPE_AP) {
872 rcu_read_unlock();
873 return -EINVAL;
874 }
875
876 if (params->vlan->ieee80211_ptr->use_4addr) {
877 if (vlansdata->u.vlan.sta) {
878 rcu_read_unlock();
879 return -EBUSY;
880 }
881
882 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
883 }
884
885 sta->sdata = vlansdata;
886 ieee80211_send_layer2_update(sta);
887 }
888
889 sta_apply_parameters(local, sta, params);
890
891 rcu_read_unlock();
892
893 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
894 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
895 ieee80211_recalc_ps(local, -1);
896
897 return 0;
898 }
899
900 #ifdef CONFIG_MAC80211_MESH
901 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
902 u8 *dst, u8 *next_hop)
903 {
904 struct ieee80211_sub_if_data *sdata;
905 struct mesh_path *mpath;
906 struct sta_info *sta;
907 int err;
908
909 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
910
911 rcu_read_lock();
912 sta = sta_info_get(sdata, next_hop);
913 if (!sta) {
914 rcu_read_unlock();
915 return -ENOENT;
916 }
917
918 err = mesh_path_add(dst, sdata);
919 if (err) {
920 rcu_read_unlock();
921 return err;
922 }
923
924 mpath = mesh_path_lookup(dst, sdata);
925 if (!mpath) {
926 rcu_read_unlock();
927 return -ENXIO;
928 }
929 mesh_path_fix_nexthop(mpath, sta);
930
931 rcu_read_unlock();
932 return 0;
933 }
934
935 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
936 u8 *dst)
937 {
938 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
939
940 if (dst)
941 return mesh_path_del(dst, sdata);
942
943 mesh_path_flush_by_iface(sdata);
944 return 0;
945 }
946
947 static int ieee80211_change_mpath(struct wiphy *wiphy,
948 struct net_device *dev,
949 u8 *dst, u8 *next_hop)
950 {
951 struct ieee80211_sub_if_data *sdata;
952 struct mesh_path *mpath;
953 struct sta_info *sta;
954
955 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
956
957 rcu_read_lock();
958
959 sta = sta_info_get(sdata, next_hop);
960 if (!sta) {
961 rcu_read_unlock();
962 return -ENOENT;
963 }
964
965 mpath = mesh_path_lookup(dst, sdata);
966 if (!mpath) {
967 rcu_read_unlock();
968 return -ENOENT;
969 }
970
971 mesh_path_fix_nexthop(mpath, sta);
972
973 rcu_read_unlock();
974 return 0;
975 }
976
977 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
978 struct mpath_info *pinfo)
979 {
980 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
981
982 if (next_hop_sta)
983 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
984 else
985 memset(next_hop, 0, ETH_ALEN);
986
987 pinfo->generation = mesh_paths_generation;
988
989 pinfo->filled = MPATH_INFO_FRAME_QLEN |
990 MPATH_INFO_SN |
991 MPATH_INFO_METRIC |
992 MPATH_INFO_EXPTIME |
993 MPATH_INFO_DISCOVERY_TIMEOUT |
994 MPATH_INFO_DISCOVERY_RETRIES |
995 MPATH_INFO_FLAGS;
996
997 pinfo->frame_qlen = mpath->frame_queue.qlen;
998 pinfo->sn = mpath->sn;
999 pinfo->metric = mpath->metric;
1000 if (time_before(jiffies, mpath->exp_time))
1001 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1002 pinfo->discovery_timeout =
1003 jiffies_to_msecs(mpath->discovery_timeout);
1004 pinfo->discovery_retries = mpath->discovery_retries;
1005 pinfo->flags = 0;
1006 if (mpath->flags & MESH_PATH_ACTIVE)
1007 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1008 if (mpath->flags & MESH_PATH_RESOLVING)
1009 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1010 if (mpath->flags & MESH_PATH_SN_VALID)
1011 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1012 if (mpath->flags & MESH_PATH_FIXED)
1013 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1014 if (mpath->flags & MESH_PATH_RESOLVING)
1015 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1016
1017 pinfo->flags = mpath->flags;
1018 }
1019
1020 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1021 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1022
1023 {
1024 struct ieee80211_sub_if_data *sdata;
1025 struct mesh_path *mpath;
1026
1027 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1028
1029 rcu_read_lock();
1030 mpath = mesh_path_lookup(dst, sdata);
1031 if (!mpath) {
1032 rcu_read_unlock();
1033 return -ENOENT;
1034 }
1035 memcpy(dst, mpath->dst, ETH_ALEN);
1036 mpath_set_pinfo(mpath, next_hop, pinfo);
1037 rcu_read_unlock();
1038 return 0;
1039 }
1040
1041 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1042 int idx, u8 *dst, u8 *next_hop,
1043 struct mpath_info *pinfo)
1044 {
1045 struct ieee80211_sub_if_data *sdata;
1046 struct mesh_path *mpath;
1047
1048 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1049
1050 rcu_read_lock();
1051 mpath = mesh_path_lookup_by_idx(idx, sdata);
1052 if (!mpath) {
1053 rcu_read_unlock();
1054 return -ENOENT;
1055 }
1056 memcpy(dst, mpath->dst, ETH_ALEN);
1057 mpath_set_pinfo(mpath, next_hop, pinfo);
1058 rcu_read_unlock();
1059 return 0;
1060 }
1061
1062 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1063 struct net_device *dev,
1064 struct mesh_config *conf)
1065 {
1066 struct ieee80211_sub_if_data *sdata;
1067 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1068
1069 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1070 return 0;
1071 }
1072
1073 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1074 {
1075 return (mask >> (parm-1)) & 0x1;
1076 }
1077
1078 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1079 const struct mesh_setup *setup)
1080 {
1081 u8 *new_ie;
1082 const u8 *old_ie;
1083
1084 /* allocate information elements */
1085 new_ie = NULL;
1086 old_ie = ifmsh->ie;
1087
1088 if (setup->ie_len) {
1089 new_ie = kmemdup(setup->ie, setup->ie_len,
1090 GFP_KERNEL);
1091 if (!new_ie)
1092 return -ENOMEM;
1093 }
1094 ifmsh->ie_len = setup->ie_len;
1095 ifmsh->ie = new_ie;
1096 kfree(old_ie);
1097
1098 /* now copy the rest of the setup parameters */
1099 ifmsh->mesh_id_len = setup->mesh_id_len;
1100 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1101 ifmsh->mesh_pp_id = setup->path_sel_proto;
1102 ifmsh->mesh_pm_id = setup->path_metric;
1103 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1104 if (setup->is_authenticated)
1105 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1106 if (setup->is_secure)
1107 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1108
1109 return 0;
1110 }
1111
1112 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1113 struct net_device *dev, u32 mask,
1114 const struct mesh_config *nconf)
1115 {
1116 struct mesh_config *conf;
1117 struct ieee80211_sub_if_data *sdata;
1118 struct ieee80211_if_mesh *ifmsh;
1119
1120 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1121 ifmsh = &sdata->u.mesh;
1122
1123 /* Set the config options which we are interested in setting */
1124 conf = &(sdata->u.mesh.mshcfg);
1125 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1126 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1127 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1128 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1129 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1130 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1131 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1132 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1133 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1134 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1135 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1136 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1137 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1138 conf->dot11MeshTTL = nconf->element_ttl;
1139 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1140 conf->auto_open_plinks = nconf->auto_open_plinks;
1141 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1142 conf->dot11MeshHWMPmaxPREQretries =
1143 nconf->dot11MeshHWMPmaxPREQretries;
1144 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1145 conf->path_refresh_time = nconf->path_refresh_time;
1146 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1147 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1148 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1149 conf->dot11MeshHWMPactivePathTimeout =
1150 nconf->dot11MeshHWMPactivePathTimeout;
1151 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1152 conf->dot11MeshHWMPpreqMinInterval =
1153 nconf->dot11MeshHWMPpreqMinInterval;
1154 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1155 mask))
1156 conf->dot11MeshHWMPnetDiameterTraversalTime =
1157 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1158 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1159 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1160 ieee80211_mesh_root_setup(ifmsh);
1161 }
1162 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1163 /* our current gate announcement implementation rides on root
1164 * announcements, so require this ifmsh to also be a root node
1165 * */
1166 if (nconf->dot11MeshGateAnnouncementProtocol &&
1167 !conf->dot11MeshHWMPRootMode) {
1168 conf->dot11MeshHWMPRootMode = 1;
1169 ieee80211_mesh_root_setup(ifmsh);
1170 }
1171 conf->dot11MeshGateAnnouncementProtocol =
1172 nconf->dot11MeshGateAnnouncementProtocol;
1173 }
1174 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) {
1175 conf->dot11MeshHWMPRannInterval =
1176 nconf->dot11MeshHWMPRannInterval;
1177 }
1178 return 0;
1179 }
1180
1181 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1182 const struct mesh_config *conf,
1183 const struct mesh_setup *setup)
1184 {
1185 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1186 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1187 int err;
1188
1189 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1190 err = copy_mesh_setup(ifmsh, setup);
1191 if (err)
1192 return err;
1193 ieee80211_start_mesh(sdata);
1194
1195 return 0;
1196 }
1197
1198 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1199 {
1200 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1201
1202 ieee80211_stop_mesh(sdata);
1203
1204 return 0;
1205 }
1206 #endif
1207
1208 static int ieee80211_change_bss(struct wiphy *wiphy,
1209 struct net_device *dev,
1210 struct bss_parameters *params)
1211 {
1212 struct ieee80211_sub_if_data *sdata;
1213 u32 changed = 0;
1214
1215 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1216
1217 if (params->use_cts_prot >= 0) {
1218 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1219 changed |= BSS_CHANGED_ERP_CTS_PROT;
1220 }
1221 if (params->use_short_preamble >= 0) {
1222 sdata->vif.bss_conf.use_short_preamble =
1223 params->use_short_preamble;
1224 changed |= BSS_CHANGED_ERP_PREAMBLE;
1225 }
1226
1227 if (!sdata->vif.bss_conf.use_short_slot &&
1228 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1229 sdata->vif.bss_conf.use_short_slot = true;
1230 changed |= BSS_CHANGED_ERP_SLOT;
1231 }
1232
1233 if (params->use_short_slot_time >= 0) {
1234 sdata->vif.bss_conf.use_short_slot =
1235 params->use_short_slot_time;
1236 changed |= BSS_CHANGED_ERP_SLOT;
1237 }
1238
1239 if (params->basic_rates) {
1240 int i, j;
1241 u32 rates = 0;
1242 struct ieee80211_local *local = wiphy_priv(wiphy);
1243 struct ieee80211_supported_band *sband =
1244 wiphy->bands[local->oper_channel->band];
1245
1246 for (i = 0; i < params->basic_rates_len; i++) {
1247 int rate = (params->basic_rates[i] & 0x7f) * 5;
1248 for (j = 0; j < sband->n_bitrates; j++) {
1249 if (sband->bitrates[j].bitrate == rate)
1250 rates |= BIT(j);
1251 }
1252 }
1253 sdata->vif.bss_conf.basic_rates = rates;
1254 changed |= BSS_CHANGED_BASIC_RATES;
1255 }
1256
1257 if (params->ap_isolate >= 0) {
1258 if (params->ap_isolate)
1259 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1260 else
1261 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1262 }
1263
1264 if (params->ht_opmode >= 0) {
1265 sdata->vif.bss_conf.ht_operation_mode =
1266 (u16) params->ht_opmode;
1267 changed |= BSS_CHANGED_HT;
1268 }
1269
1270 ieee80211_bss_info_change_notify(sdata, changed);
1271
1272 return 0;
1273 }
1274
1275 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1276 struct net_device *dev,
1277 struct ieee80211_txq_params *params)
1278 {
1279 struct ieee80211_local *local = wiphy_priv(wiphy);
1280 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1281 struct ieee80211_tx_queue_params p;
1282
1283 if (!local->ops->conf_tx)
1284 return -EOPNOTSUPP;
1285
1286 memset(&p, 0, sizeof(p));
1287 p.aifs = params->aifs;
1288 p.cw_max = params->cwmax;
1289 p.cw_min = params->cwmin;
1290 p.txop = params->txop;
1291
1292 /*
1293 * Setting tx queue params disables u-apsd because it's only
1294 * called in master mode.
1295 */
1296 p.uapsd = false;
1297
1298 if (params->queue >= local->hw.queues)
1299 return -EINVAL;
1300
1301 sdata->tx_conf[params->queue] = p;
1302 if (drv_conf_tx(local, sdata, params->queue, &p)) {
1303 wiphy_debug(local->hw.wiphy,
1304 "failed to set TX queue parameters for queue %d\n",
1305 params->queue);
1306 return -EINVAL;
1307 }
1308
1309 return 0;
1310 }
1311
1312 static int ieee80211_set_channel(struct wiphy *wiphy,
1313 struct net_device *netdev,
1314 struct ieee80211_channel *chan,
1315 enum nl80211_channel_type channel_type)
1316 {
1317 struct ieee80211_local *local = wiphy_priv(wiphy);
1318 struct ieee80211_sub_if_data *sdata = NULL;
1319 struct ieee80211_channel *old_oper;
1320 enum nl80211_channel_type old_oper_type;
1321 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
1322
1323 if (netdev)
1324 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1325
1326 switch (ieee80211_get_channel_mode(local, NULL)) {
1327 case CHAN_MODE_HOPPING:
1328 return -EBUSY;
1329 case CHAN_MODE_FIXED:
1330 if (local->oper_channel != chan)
1331 return -EBUSY;
1332 if (!sdata && local->_oper_channel_type == channel_type)
1333 return 0;
1334 break;
1335 case CHAN_MODE_UNDEFINED:
1336 break;
1337 }
1338
1339 if (sdata)
1340 old_vif_oper_type = sdata->vif.bss_conf.channel_type;
1341 old_oper_type = local->_oper_channel_type;
1342
1343 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1344 return -EBUSY;
1345
1346 old_oper = local->oper_channel;
1347 local->oper_channel = chan;
1348
1349 /* Update driver if changes were actually made. */
1350 if ((old_oper != local->oper_channel) ||
1351 (old_oper_type != local->_oper_channel_type))
1352 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1353
1354 if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
1355 old_vif_oper_type != sdata->vif.bss_conf.channel_type)
1356 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1357
1358 return 0;
1359 }
1360
1361 #ifdef CONFIG_PM
1362 static int ieee80211_suspend(struct wiphy *wiphy,
1363 struct cfg80211_wowlan *wowlan)
1364 {
1365 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1366 }
1367
1368 static int ieee80211_resume(struct wiphy *wiphy)
1369 {
1370 return __ieee80211_resume(wiphy_priv(wiphy));
1371 }
1372 #else
1373 #define ieee80211_suspend NULL
1374 #define ieee80211_resume NULL
1375 #endif
1376
1377 static int ieee80211_scan(struct wiphy *wiphy,
1378 struct net_device *dev,
1379 struct cfg80211_scan_request *req)
1380 {
1381 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1382
1383 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1384 case NL80211_IFTYPE_STATION:
1385 case NL80211_IFTYPE_ADHOC:
1386 case NL80211_IFTYPE_MESH_POINT:
1387 case NL80211_IFTYPE_P2P_CLIENT:
1388 break;
1389 case NL80211_IFTYPE_P2P_GO:
1390 if (sdata->local->ops->hw_scan)
1391 break;
1392 /*
1393 * FIXME: implement NoA while scanning in software,
1394 * for now fall through to allow scanning only when
1395 * beaconing hasn't been configured yet
1396 */
1397 case NL80211_IFTYPE_AP:
1398 if (sdata->u.ap.beacon)
1399 return -EOPNOTSUPP;
1400 break;
1401 default:
1402 return -EOPNOTSUPP;
1403 }
1404
1405 return ieee80211_request_scan(sdata, req);
1406 }
1407
1408 static int
1409 ieee80211_sched_scan_start(struct wiphy *wiphy,
1410 struct net_device *dev,
1411 struct cfg80211_sched_scan_request *req)
1412 {
1413 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1414
1415 if (!sdata->local->ops->sched_scan_start)
1416 return -EOPNOTSUPP;
1417
1418 return ieee80211_request_sched_scan_start(sdata, req);
1419 }
1420
1421 static int
1422 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1423 {
1424 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1425
1426 if (!sdata->local->ops->sched_scan_stop)
1427 return -EOPNOTSUPP;
1428
1429 return ieee80211_request_sched_scan_stop(sdata);
1430 }
1431
1432 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1433 struct cfg80211_auth_request *req)
1434 {
1435 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1436 }
1437
1438 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1439 struct cfg80211_assoc_request *req)
1440 {
1441 struct ieee80211_local *local = wiphy_priv(wiphy);
1442 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1443
1444 switch (ieee80211_get_channel_mode(local, sdata)) {
1445 case CHAN_MODE_HOPPING:
1446 return -EBUSY;
1447 case CHAN_MODE_FIXED:
1448 if (local->oper_channel == req->bss->channel)
1449 break;
1450 return -EBUSY;
1451 case CHAN_MODE_UNDEFINED:
1452 break;
1453 }
1454
1455 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1456 }
1457
1458 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1459 struct cfg80211_deauth_request *req,
1460 void *cookie)
1461 {
1462 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1463 req, cookie);
1464 }
1465
1466 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1467 struct cfg80211_disassoc_request *req,
1468 void *cookie)
1469 {
1470 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1471 req, cookie);
1472 }
1473
1474 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1475 struct cfg80211_ibss_params *params)
1476 {
1477 struct ieee80211_local *local = wiphy_priv(wiphy);
1478 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1479
1480 switch (ieee80211_get_channel_mode(local, sdata)) {
1481 case CHAN_MODE_HOPPING:
1482 return -EBUSY;
1483 case CHAN_MODE_FIXED:
1484 if (!params->channel_fixed)
1485 return -EBUSY;
1486 if (local->oper_channel == params->channel)
1487 break;
1488 return -EBUSY;
1489 case CHAN_MODE_UNDEFINED:
1490 break;
1491 }
1492
1493 return ieee80211_ibss_join(sdata, params);
1494 }
1495
1496 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1497 {
1498 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1499
1500 return ieee80211_ibss_leave(sdata);
1501 }
1502
1503 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1504 {
1505 struct ieee80211_local *local = wiphy_priv(wiphy);
1506 int err;
1507
1508 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1509 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1510
1511 if (err)
1512 return err;
1513 }
1514
1515 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1516 err = drv_set_coverage_class(local, wiphy->coverage_class);
1517
1518 if (err)
1519 return err;
1520 }
1521
1522 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1523 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1524
1525 if (err)
1526 return err;
1527 }
1528
1529 if (changed & WIPHY_PARAM_RETRY_SHORT)
1530 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1531 if (changed & WIPHY_PARAM_RETRY_LONG)
1532 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1533 if (changed &
1534 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1535 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1536
1537 return 0;
1538 }
1539
1540 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1541 enum nl80211_tx_power_setting type, int mbm)
1542 {
1543 struct ieee80211_local *local = wiphy_priv(wiphy);
1544 struct ieee80211_channel *chan = local->hw.conf.channel;
1545 u32 changes = 0;
1546
1547 switch (type) {
1548 case NL80211_TX_POWER_AUTOMATIC:
1549 local->user_power_level = -1;
1550 break;
1551 case NL80211_TX_POWER_LIMITED:
1552 if (mbm < 0 || (mbm % 100))
1553 return -EOPNOTSUPP;
1554 local->user_power_level = MBM_TO_DBM(mbm);
1555 break;
1556 case NL80211_TX_POWER_FIXED:
1557 if (mbm < 0 || (mbm % 100))
1558 return -EOPNOTSUPP;
1559 /* TODO: move to cfg80211 when it knows the channel */
1560 if (MBM_TO_DBM(mbm) > chan->max_power)
1561 return -EINVAL;
1562 local->user_power_level = MBM_TO_DBM(mbm);
1563 break;
1564 }
1565
1566 ieee80211_hw_config(local, changes);
1567
1568 return 0;
1569 }
1570
1571 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1572 {
1573 struct ieee80211_local *local = wiphy_priv(wiphy);
1574
1575 *dbm = local->hw.conf.power_level;
1576
1577 return 0;
1578 }
1579
1580 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1581 const u8 *addr)
1582 {
1583 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1584
1585 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1586
1587 return 0;
1588 }
1589
1590 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1591 {
1592 struct ieee80211_local *local = wiphy_priv(wiphy);
1593
1594 drv_rfkill_poll(local);
1595 }
1596
1597 #ifdef CONFIG_NL80211_TESTMODE
1598 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1599 {
1600 struct ieee80211_local *local = wiphy_priv(wiphy);
1601
1602 if (!local->ops->testmode_cmd)
1603 return -EOPNOTSUPP;
1604
1605 return local->ops->testmode_cmd(&local->hw, data, len);
1606 }
1607
1608 static int ieee80211_testmode_dump(struct wiphy *wiphy,
1609 struct sk_buff *skb,
1610 struct netlink_callback *cb,
1611 void *data, int len)
1612 {
1613 struct ieee80211_local *local = wiphy_priv(wiphy);
1614
1615 if (!local->ops->testmode_dump)
1616 return -EOPNOTSUPP;
1617
1618 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
1619 }
1620 #endif
1621
1622 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1623 enum ieee80211_smps_mode smps_mode)
1624 {
1625 const u8 *ap;
1626 enum ieee80211_smps_mode old_req;
1627 int err;
1628
1629 lockdep_assert_held(&sdata->u.mgd.mtx);
1630
1631 old_req = sdata->u.mgd.req_smps;
1632 sdata->u.mgd.req_smps = smps_mode;
1633
1634 if (old_req == smps_mode &&
1635 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1636 return 0;
1637
1638 /*
1639 * If not associated, or current association is not an HT
1640 * association, there's no need to send an action frame.
1641 */
1642 if (!sdata->u.mgd.associated ||
1643 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1644 mutex_lock(&sdata->local->iflist_mtx);
1645 ieee80211_recalc_smps(sdata->local);
1646 mutex_unlock(&sdata->local->iflist_mtx);
1647 return 0;
1648 }
1649
1650 ap = sdata->u.mgd.associated->bssid;
1651
1652 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1653 if (sdata->u.mgd.powersave)
1654 smps_mode = IEEE80211_SMPS_DYNAMIC;
1655 else
1656 smps_mode = IEEE80211_SMPS_OFF;
1657 }
1658
1659 /* send SM PS frame to AP */
1660 err = ieee80211_send_smps_action(sdata, smps_mode,
1661 ap, ap);
1662 if (err)
1663 sdata->u.mgd.req_smps = old_req;
1664
1665 return err;
1666 }
1667
1668 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1669 bool enabled, int timeout)
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
1674 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1675 return -EOPNOTSUPP;
1676
1677 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1678 return -EOPNOTSUPP;
1679
1680 if (enabled == sdata->u.mgd.powersave &&
1681 timeout == local->dynamic_ps_forced_timeout)
1682 return 0;
1683
1684 sdata->u.mgd.powersave = enabled;
1685 local->dynamic_ps_forced_timeout = timeout;
1686
1687 /* no change, but if automatic follow powersave */
1688 mutex_lock(&sdata->u.mgd.mtx);
1689 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1690 mutex_unlock(&sdata->u.mgd.mtx);
1691
1692 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1693 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1694
1695 ieee80211_recalc_ps(local, -1);
1696
1697 return 0;
1698 }
1699
1700 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1701 struct net_device *dev,
1702 s32 rssi_thold, u32 rssi_hyst)
1703 {
1704 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1705 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1706 struct ieee80211_vif *vif = &sdata->vif;
1707 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1708
1709 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1710 rssi_hyst == bss_conf->cqm_rssi_hyst)
1711 return 0;
1712
1713 bss_conf->cqm_rssi_thold = rssi_thold;
1714 bss_conf->cqm_rssi_hyst = rssi_hyst;
1715
1716 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1717 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1718 return -EOPNOTSUPP;
1719 return 0;
1720 }
1721
1722 /* tell the driver upon association, unless already associated */
1723 if (sdata->u.mgd.associated)
1724 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1725
1726 return 0;
1727 }
1728
1729 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1730 struct net_device *dev,
1731 const u8 *addr,
1732 const struct cfg80211_bitrate_mask *mask)
1733 {
1734 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1735 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1736 int i, ret;
1737
1738 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
1739 ret = drv_set_bitrate_mask(local, sdata, mask);
1740 if (ret)
1741 return ret;
1742 }
1743
1744 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1745 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1746
1747 return 0;
1748 }
1749
1750 static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1751 struct net_device *dev,
1752 struct ieee80211_channel *chan,
1753 enum nl80211_channel_type chantype,
1754 unsigned int duration, u64 *cookie)
1755 {
1756 int ret;
1757 u32 random_cookie;
1758
1759 lockdep_assert_held(&local->mtx);
1760
1761 if (local->hw_roc_cookie)
1762 return -EBUSY;
1763 /* must be nonzero */
1764 random_cookie = random32() | 1;
1765
1766 *cookie = random_cookie;
1767 local->hw_roc_dev = dev;
1768 local->hw_roc_cookie = random_cookie;
1769 local->hw_roc_channel = chan;
1770 local->hw_roc_channel_type = chantype;
1771 local->hw_roc_duration = duration;
1772 ret = drv_remain_on_channel(local, chan, chantype, duration);
1773 if (ret) {
1774 local->hw_roc_channel = NULL;
1775 local->hw_roc_cookie = 0;
1776 }
1777
1778 return ret;
1779 }
1780
1781 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1782 struct net_device *dev,
1783 struct ieee80211_channel *chan,
1784 enum nl80211_channel_type channel_type,
1785 unsigned int duration,
1786 u64 *cookie)
1787 {
1788 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1789 struct ieee80211_local *local = sdata->local;
1790
1791 if (local->ops->remain_on_channel) {
1792 int ret;
1793
1794 mutex_lock(&local->mtx);
1795 ret = ieee80211_remain_on_channel_hw(local, dev,
1796 chan, channel_type,
1797 duration, cookie);
1798 local->hw_roc_for_tx = false;
1799 mutex_unlock(&local->mtx);
1800
1801 return ret;
1802 }
1803
1804 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1805 duration, cookie);
1806 }
1807
1808 static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1809 u64 cookie)
1810 {
1811 int ret;
1812
1813 lockdep_assert_held(&local->mtx);
1814
1815 if (local->hw_roc_cookie != cookie)
1816 return -ENOENT;
1817
1818 ret = drv_cancel_remain_on_channel(local);
1819 if (ret)
1820 return ret;
1821
1822 local->hw_roc_cookie = 0;
1823 local->hw_roc_channel = NULL;
1824
1825 ieee80211_recalc_idle(local);
1826
1827 return 0;
1828 }
1829
1830 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1831 struct net_device *dev,
1832 u64 cookie)
1833 {
1834 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1835 struct ieee80211_local *local = sdata->local;
1836
1837 if (local->ops->cancel_remain_on_channel) {
1838 int ret;
1839
1840 mutex_lock(&local->mtx);
1841 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1842 mutex_unlock(&local->mtx);
1843
1844 return ret;
1845 }
1846
1847 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1848 }
1849
1850 static enum work_done_result
1851 ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1852 {
1853 /*
1854 * Use the data embedded in the work struct for reporting
1855 * here so if the driver mangled the SKB before dropping
1856 * it (which is the only way we really should get here)
1857 * then we don't report mangled data.
1858 *
1859 * If there was no wait time, then by the time we get here
1860 * the driver will likely not have reported the status yet,
1861 * so in that case userspace will have to deal with it.
1862 */
1863
1864 if (wk->offchan_tx.wait && wk->offchan_tx.frame)
1865 cfg80211_mgmt_tx_status(wk->sdata->dev,
1866 (unsigned long) wk->offchan_tx.frame,
1867 wk->ie, wk->ie_len, false, GFP_KERNEL);
1868
1869 return WORK_DONE_DESTROY;
1870 }
1871
1872 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1873 struct ieee80211_channel *chan, bool offchan,
1874 enum nl80211_channel_type channel_type,
1875 bool channel_type_valid, unsigned int wait,
1876 const u8 *buf, size_t len, bool no_cck,
1877 u64 *cookie)
1878 {
1879 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1880 struct ieee80211_local *local = sdata->local;
1881 struct sk_buff *skb;
1882 struct sta_info *sta;
1883 struct ieee80211_work *wk;
1884 const struct ieee80211_mgmt *mgmt = (void *)buf;
1885 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1886 IEEE80211_TX_CTL_REQ_TX_STATUS;
1887 bool is_offchan = false;
1888
1889 /* Check that we are on the requested channel for transmission */
1890 if (chan != local->tmp_channel &&
1891 chan != local->oper_channel)
1892 is_offchan = true;
1893 if (channel_type_valid &&
1894 (channel_type != local->tmp_channel_type &&
1895 channel_type != local->_oper_channel_type))
1896 is_offchan = true;
1897
1898 if (chan == local->hw_roc_channel) {
1899 /* TODO: check channel type? */
1900 is_offchan = false;
1901 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1902 }
1903
1904 if (no_cck)
1905 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
1906
1907 if (is_offchan && !offchan)
1908 return -EBUSY;
1909
1910 switch (sdata->vif.type) {
1911 case NL80211_IFTYPE_ADHOC:
1912 case NL80211_IFTYPE_AP:
1913 case NL80211_IFTYPE_AP_VLAN:
1914 case NL80211_IFTYPE_P2P_GO:
1915 case NL80211_IFTYPE_MESH_POINT:
1916 if (!ieee80211_is_action(mgmt->frame_control) ||
1917 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1918 break;
1919 rcu_read_lock();
1920 sta = sta_info_get(sdata, mgmt->da);
1921 rcu_read_unlock();
1922 if (!sta)
1923 return -ENOLINK;
1924 break;
1925 case NL80211_IFTYPE_STATION:
1926 case NL80211_IFTYPE_P2P_CLIENT:
1927 break;
1928 default:
1929 return -EOPNOTSUPP;
1930 }
1931
1932 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1933 if (!skb)
1934 return -ENOMEM;
1935 skb_reserve(skb, local->hw.extra_tx_headroom);
1936
1937 memcpy(skb_put(skb, len), buf, len);
1938
1939 IEEE80211_SKB_CB(skb)->flags = flags;
1940
1941 skb->dev = sdata->dev;
1942
1943 *cookie = (unsigned long) skb;
1944
1945 if (is_offchan && local->ops->remain_on_channel) {
1946 unsigned int duration;
1947 int ret;
1948
1949 mutex_lock(&local->mtx);
1950 /*
1951 * If the duration is zero, then the driver
1952 * wouldn't actually do anything. Set it to
1953 * 100 for now.
1954 *
1955 * TODO: cancel the off-channel operation
1956 * when we get the SKB's TX status and
1957 * the wait time was zero before.
1958 */
1959 duration = 100;
1960 if (wait)
1961 duration = wait;
1962 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
1963 channel_type,
1964 duration, cookie);
1965 if (ret) {
1966 kfree_skb(skb);
1967 mutex_unlock(&local->mtx);
1968 return ret;
1969 }
1970
1971 local->hw_roc_for_tx = true;
1972 local->hw_roc_duration = wait;
1973
1974 /*
1975 * queue up frame for transmission after
1976 * ieee80211_ready_on_channel call
1977 */
1978
1979 /* modify cookie to prevent API mismatches */
1980 *cookie ^= 2;
1981 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1982 local->hw_roc_skb = skb;
1983 local->hw_roc_skb_for_status = skb;
1984 mutex_unlock(&local->mtx);
1985
1986 return 0;
1987 }
1988
1989 /*
1990 * Can transmit right away if the channel was the
1991 * right one and there's no wait involved... If a
1992 * wait is involved, we might otherwise not be on
1993 * the right channel for long enough!
1994 */
1995 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
1996 ieee80211_tx_skb(sdata, skb);
1997 return 0;
1998 }
1999
2000 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
2001 if (!wk) {
2002 kfree_skb(skb);
2003 return -ENOMEM;
2004 }
2005
2006 wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
2007 wk->chan = chan;
2008 wk->chan_type = channel_type;
2009 wk->sdata = sdata;
2010 wk->done = ieee80211_offchan_tx_done;
2011 wk->offchan_tx.frame = skb;
2012 wk->offchan_tx.wait = wait;
2013 wk->ie_len = len;
2014 memcpy(wk->ie, buf, len);
2015
2016 ieee80211_add_work(wk);
2017 return 0;
2018 }
2019
2020 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2021 struct net_device *dev,
2022 u64 cookie)
2023 {
2024 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2025 struct ieee80211_local *local = sdata->local;
2026 struct ieee80211_work *wk;
2027 int ret = -ENOENT;
2028
2029 mutex_lock(&local->mtx);
2030
2031 if (local->ops->cancel_remain_on_channel) {
2032 cookie ^= 2;
2033 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
2034
2035 if (ret == 0) {
2036 kfree_skb(local->hw_roc_skb);
2037 local->hw_roc_skb = NULL;
2038 local->hw_roc_skb_for_status = NULL;
2039 }
2040
2041 mutex_unlock(&local->mtx);
2042
2043 return ret;
2044 }
2045
2046 list_for_each_entry(wk, &local->work_list, list) {
2047 if (wk->sdata != sdata)
2048 continue;
2049
2050 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
2051 continue;
2052
2053 if (cookie != (unsigned long) wk->offchan_tx.frame)
2054 continue;
2055
2056 wk->timeout = jiffies;
2057
2058 ieee80211_queue_work(&local->hw, &local->work_work);
2059 ret = 0;
2060 break;
2061 }
2062 mutex_unlock(&local->mtx);
2063
2064 return ret;
2065 }
2066
2067 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2068 struct net_device *dev,
2069 u16 frame_type, bool reg)
2070 {
2071 struct ieee80211_local *local = wiphy_priv(wiphy);
2072
2073 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
2074 return;
2075
2076 if (reg)
2077 local->probe_req_reg++;
2078 else
2079 local->probe_req_reg--;
2080
2081 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2082 }
2083
2084 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2085 {
2086 struct ieee80211_local *local = wiphy_priv(wiphy);
2087
2088 if (local->started)
2089 return -EOPNOTSUPP;
2090
2091 return drv_set_antenna(local, tx_ant, rx_ant);
2092 }
2093
2094 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2095 {
2096 struct ieee80211_local *local = wiphy_priv(wiphy);
2097
2098 return drv_get_antenna(local, tx_ant, rx_ant);
2099 }
2100
2101 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2102 {
2103 struct ieee80211_local *local = wiphy_priv(wiphy);
2104
2105 return drv_set_ringparam(local, tx, rx);
2106 }
2107
2108 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2109 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2110 {
2111 struct ieee80211_local *local = wiphy_priv(wiphy);
2112
2113 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2114 }
2115
2116 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2117 struct net_device *dev,
2118 struct cfg80211_gtk_rekey_data *data)
2119 {
2120 struct ieee80211_local *local = wiphy_priv(wiphy);
2121 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2122
2123 if (!local->ops->set_rekey_data)
2124 return -EOPNOTSUPP;
2125
2126 drv_set_rekey_data(local, sdata, data);
2127
2128 return 0;
2129 }
2130
2131 struct cfg80211_ops mac80211_config_ops = {
2132 .add_virtual_intf = ieee80211_add_iface,
2133 .del_virtual_intf = ieee80211_del_iface,
2134 .change_virtual_intf = ieee80211_change_iface,
2135 .add_key = ieee80211_add_key,
2136 .del_key = ieee80211_del_key,
2137 .get_key = ieee80211_get_key,
2138 .set_default_key = ieee80211_config_default_key,
2139 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
2140 .add_beacon = ieee80211_add_beacon,
2141 .set_beacon = ieee80211_set_beacon,
2142 .del_beacon = ieee80211_del_beacon,
2143 .add_station = ieee80211_add_station,
2144 .del_station = ieee80211_del_station,
2145 .change_station = ieee80211_change_station,
2146 .get_station = ieee80211_get_station,
2147 .dump_station = ieee80211_dump_station,
2148 .dump_survey = ieee80211_dump_survey,
2149 #ifdef CONFIG_MAC80211_MESH
2150 .add_mpath = ieee80211_add_mpath,
2151 .del_mpath = ieee80211_del_mpath,
2152 .change_mpath = ieee80211_change_mpath,
2153 .get_mpath = ieee80211_get_mpath,
2154 .dump_mpath = ieee80211_dump_mpath,
2155 .update_mesh_config = ieee80211_update_mesh_config,
2156 .get_mesh_config = ieee80211_get_mesh_config,
2157 .join_mesh = ieee80211_join_mesh,
2158 .leave_mesh = ieee80211_leave_mesh,
2159 #endif
2160 .change_bss = ieee80211_change_bss,
2161 .set_txq_params = ieee80211_set_txq_params,
2162 .set_channel = ieee80211_set_channel,
2163 .suspend = ieee80211_suspend,
2164 .resume = ieee80211_resume,
2165 .scan = ieee80211_scan,
2166 .sched_scan_start = ieee80211_sched_scan_start,
2167 .sched_scan_stop = ieee80211_sched_scan_stop,
2168 .auth = ieee80211_auth,
2169 .assoc = ieee80211_assoc,
2170 .deauth = ieee80211_deauth,
2171 .disassoc = ieee80211_disassoc,
2172 .join_ibss = ieee80211_join_ibss,
2173 .leave_ibss = ieee80211_leave_ibss,
2174 .set_wiphy_params = ieee80211_set_wiphy_params,
2175 .set_tx_power = ieee80211_set_tx_power,
2176 .get_tx_power = ieee80211_get_tx_power,
2177 .set_wds_peer = ieee80211_set_wds_peer,
2178 .rfkill_poll = ieee80211_rfkill_poll,
2179 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
2180 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
2181 .set_power_mgmt = ieee80211_set_power_mgmt,
2182 .set_bitrate_mask = ieee80211_set_bitrate_mask,
2183 .remain_on_channel = ieee80211_remain_on_channel,
2184 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2185 .mgmt_tx = ieee80211_mgmt_tx,
2186 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
2187 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
2188 .mgmt_frame_register = ieee80211_mgmt_frame_register,
2189 .set_antenna = ieee80211_set_antenna,
2190 .get_antenna = ieee80211_get_antenna,
2191 .set_ringparam = ieee80211_set_ringparam,
2192 .get_ringparam = ieee80211_get_ringparam,
2193 .set_rekey_data = ieee80211_set_rekey_data,
2194 };
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree