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cifs: make cifs_ioctl handle NULL filp->private_data correctly
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / net / mac80211 / cfg.c
blob18bd0e550600fccac46a106d3f29ffd7d609ce5b
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 int ieee80211_add_iface(struct wiphy *wiphy, char *name,
23 enum nl80211_iftype type, u32 *flags,
24 struct vif_params *params)
25 {
26 struct ieee80211_local *local = wiphy_priv(wiphy);
27 struct net_device *dev;
28 struct ieee80211_sub_if_data *sdata;
29 int err;
30
31 err = ieee80211_if_add(local, name, &dev, type, params);
32 if (err || type != NL80211_IFTYPE_MONITOR || !flags)
33 return err;
34
35 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
36 sdata->u.mntr_flags = *flags;
37 return 0;
38 }
39
40 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
41 {
42 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
43
44 return 0;
45 }
46
47 static int ieee80211_change_iface(struct wiphy *wiphy,
48 struct net_device *dev,
49 enum nl80211_iftype type, u32 *flags,
50 struct vif_params *params)
51 {
52 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
53 int ret;
54
55 ret = ieee80211_if_change_type(sdata, type);
56 if (ret)
57 return ret;
58
59 if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
60 ieee80211_sdata_set_mesh_id(sdata,
61 params->mesh_id_len,
62 params->mesh_id);
63
64 if (type == NL80211_IFTYPE_AP_VLAN &&
65 params && params->use_4addr == 0)
66 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
67 else if (type == NL80211_IFTYPE_STATION &&
68 params && params->use_4addr >= 0)
69 sdata->u.mgd.use_4addr = params->use_4addr;
70
71 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
72 struct ieee80211_local *local = sdata->local;
73
74 if (ieee80211_sdata_running(sdata)) {
75 /*
76 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
77 * changed while the interface is up.
78 * Else we would need to add a lot of cruft
79 * to update everything:
80 * cooked_mntrs, monitor and all fif_* counters
81 * reconfigure hardware
82 */
83 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
84 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
85 return -EBUSY;
86
87 ieee80211_adjust_monitor_flags(sdata, -1);
88 sdata->u.mntr_flags = *flags;
89 ieee80211_adjust_monitor_flags(sdata, 1);
90
91 ieee80211_configure_filter(local);
92 } else {
93 /*
94 * Because the interface is down, ieee80211_do_stop
95 * and ieee80211_do_open take care of "everything"
96 * mentioned in the comment above.
97 */
98 sdata->u.mntr_flags = *flags;
99 }
100 }
101
102 return 0;
103 }
104
105 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
106 u8 key_idx, bool pairwise, const u8 *mac_addr,
107 struct key_params *params)
108 {
109 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
110 struct sta_info *sta = NULL;
111 struct ieee80211_key *key;
112 int err;
113
114 if (!ieee80211_sdata_running(sdata))
115 return -ENETDOWN;
116
117 /* reject WEP and TKIP keys if WEP failed to initialize */
118 switch (params->cipher) {
119 case WLAN_CIPHER_SUITE_WEP40:
120 case WLAN_CIPHER_SUITE_TKIP:
121 case WLAN_CIPHER_SUITE_WEP104:
122 if (IS_ERR(sdata->local->wep_tx_tfm))
123 return -EINVAL;
124 break;
125 default:
126 break;
127 }
128
129 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
130 params->key, params->seq_len, params->seq);
131 if (IS_ERR(key))
132 return PTR_ERR(key);
133
134 if (pairwise)
135 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
136
137 mutex_lock(&sdata->local->sta_mtx);
138
139 if (mac_addr) {
140 sta = sta_info_get_bss(sdata, mac_addr);
141 if (!sta) {
142 ieee80211_key_free(sdata->local, key);
143 err = -ENOENT;
144 goto out_unlock;
145 }
146 }
147
148 err = ieee80211_key_link(key, sdata, sta);
149 if (err)
150 ieee80211_key_free(sdata->local, key);
151
152 out_unlock:
153 mutex_unlock(&sdata->local->sta_mtx);
154
155 return err;
156 }
157
158 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
159 u8 key_idx, bool pairwise, const u8 *mac_addr)
160 {
161 struct ieee80211_sub_if_data *sdata;
162 struct sta_info *sta;
163 int ret;
164
165 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
166
167 mutex_lock(&sdata->local->sta_mtx);
168
169 if (mac_addr) {
170 ret = -ENOENT;
171
172 sta = sta_info_get_bss(sdata, mac_addr);
173 if (!sta)
174 goto out_unlock;
175
176 if (pairwise) {
177 if (sta->ptk) {
178 ieee80211_key_free(sdata->local, sta->ptk);
179 ret = 0;
180 }
181 } else {
182 if (sta->gtk[key_idx]) {
183 ieee80211_key_free(sdata->local,
184 sta->gtk[key_idx]);
185 ret = 0;
186 }
187 }
188
189 goto out_unlock;
190 }
191
192 if (!sdata->keys[key_idx]) {
193 ret = -ENOENT;
194 goto out_unlock;
195 }
196
197 ieee80211_key_free(sdata->local, sdata->keys[key_idx]);
198 WARN_ON(sdata->keys[key_idx]);
199
200 ret = 0;
201 out_unlock:
202 mutex_unlock(&sdata->local->sta_mtx);
203
204 return ret;
205 }
206
207 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
208 u8 key_idx, bool pairwise, const u8 *mac_addr,
209 void *cookie,
210 void (*callback)(void *cookie,
211 struct key_params *params))
212 {
213 struct ieee80211_sub_if_data *sdata;
214 struct sta_info *sta = NULL;
215 u8 seq[6] = {0};
216 struct key_params params;
217 struct ieee80211_key *key = NULL;
218 u32 iv32;
219 u16 iv16;
220 int err = -ENOENT;
221
222 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
223
224 rcu_read_lock();
225
226 if (mac_addr) {
227 sta = sta_info_get_bss(sdata, mac_addr);
228 if (!sta)
229 goto out;
230
231 if (pairwise)
232 key = sta->ptk;
233 else if (key_idx < NUM_DEFAULT_KEYS)
234 key = sta->gtk[key_idx];
235 } else
236 key = sdata->keys[key_idx];
237
238 if (!key)
239 goto out;
240
241 memset(&params, 0, sizeof(params));
242
243 params.cipher = key->conf.cipher;
244
245 switch (key->conf.cipher) {
246 case WLAN_CIPHER_SUITE_TKIP:
247 iv32 = key->u.tkip.tx.iv32;
248 iv16 = key->u.tkip.tx.iv16;
249
250 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
251 drv_get_tkip_seq(sdata->local,
252 key->conf.hw_key_idx,
253 &iv32, &iv16);
254
255 seq[0] = iv16 & 0xff;
256 seq[1] = (iv16 >> 8) & 0xff;
257 seq[2] = iv32 & 0xff;
258 seq[3] = (iv32 >> 8) & 0xff;
259 seq[4] = (iv32 >> 16) & 0xff;
260 seq[5] = (iv32 >> 24) & 0xff;
261 params.seq = seq;
262 params.seq_len = 6;
263 break;
264 case WLAN_CIPHER_SUITE_CCMP:
265 seq[0] = key->u.ccmp.tx_pn[5];
266 seq[1] = key->u.ccmp.tx_pn[4];
267 seq[2] = key->u.ccmp.tx_pn[3];
268 seq[3] = key->u.ccmp.tx_pn[2];
269 seq[4] = key->u.ccmp.tx_pn[1];
270 seq[5] = key->u.ccmp.tx_pn[0];
271 params.seq = seq;
272 params.seq_len = 6;
273 break;
274 case WLAN_CIPHER_SUITE_AES_CMAC:
275 seq[0] = key->u.aes_cmac.tx_pn[5];
276 seq[1] = key->u.aes_cmac.tx_pn[4];
277 seq[2] = key->u.aes_cmac.tx_pn[3];
278 seq[3] = key->u.aes_cmac.tx_pn[2];
279 seq[4] = key->u.aes_cmac.tx_pn[1];
280 seq[5] = key->u.aes_cmac.tx_pn[0];
281 params.seq = seq;
282 params.seq_len = 6;
283 break;
284 }
285
286 params.key = key->conf.key;
287 params.key_len = key->conf.keylen;
288
289 callback(cookie, &params);
290 err = 0;
291
292 out:
293 rcu_read_unlock();
294 return err;
295 }
296
297 static int ieee80211_config_default_key(struct wiphy *wiphy,
298 struct net_device *dev,
299 u8 key_idx)
300 {
301 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
302
303 ieee80211_set_default_key(sdata, key_idx);
304
305 return 0;
306 }
307
308 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
309 struct net_device *dev,
310 u8 key_idx)
311 {
312 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
313
314 ieee80211_set_default_mgmt_key(sdata, key_idx);
315
316 return 0;
317 }
318
319 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
320 {
321 struct ieee80211_sub_if_data *sdata = sta->sdata;
322
323 sinfo->generation = sdata->local->sta_generation;
324
325 sinfo->filled = STATION_INFO_INACTIVE_TIME |
326 STATION_INFO_RX_BYTES |
327 STATION_INFO_TX_BYTES |
328 STATION_INFO_RX_PACKETS |
329 STATION_INFO_TX_PACKETS |
330 STATION_INFO_TX_RETRIES |
331 STATION_INFO_TX_FAILED |
332 STATION_INFO_TX_BITRATE |
333 STATION_INFO_RX_DROP_MISC;
334
335 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
336 sinfo->rx_bytes = sta->rx_bytes;
337 sinfo->tx_bytes = sta->tx_bytes;
338 sinfo->rx_packets = sta->rx_packets;
339 sinfo->tx_packets = sta->tx_packets;
340 sinfo->tx_retries = sta->tx_retry_count;
341 sinfo->tx_failed = sta->tx_retry_failed;
342 sinfo->rx_dropped_misc = sta->rx_dropped;
343
344 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
345 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
346 sinfo->filled |= STATION_INFO_SIGNAL;
347 sinfo->signal = (s8)sta->last_signal;
348 }
349
350 sinfo->txrate.flags = 0;
351 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
352 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
353 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
354 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
355 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
356 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
357
358 if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
359 struct ieee80211_supported_band *sband;
360 sband = sta->local->hw.wiphy->bands[
361 sta->local->hw.conf.channel->band];
362 sinfo->txrate.legacy =
363 sband->bitrates[sta->last_tx_rate.idx].bitrate;
364 } else
365 sinfo->txrate.mcs = sta->last_tx_rate.idx;
366
367 if (ieee80211_vif_is_mesh(&sdata->vif)) {
368 #ifdef CONFIG_MAC80211_MESH
369 sinfo->filled |= STATION_INFO_LLID |
370 STATION_INFO_PLID |
371 STATION_INFO_PLINK_STATE;
372
373 sinfo->llid = le16_to_cpu(sta->llid);
374 sinfo->plid = le16_to_cpu(sta->plid);
375 sinfo->plink_state = sta->plink_state;
376 #endif
377 }
378 }
379
380
381 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
382 int idx, u8 *mac, struct station_info *sinfo)
383 {
384 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
385 struct sta_info *sta;
386 int ret = -ENOENT;
387
388 rcu_read_lock();
389
390 sta = sta_info_get_by_idx(sdata, idx);
391 if (sta) {
392 ret = 0;
393 memcpy(mac, sta->sta.addr, ETH_ALEN);
394 sta_set_sinfo(sta, sinfo);
395 }
396
397 rcu_read_unlock();
398
399 return ret;
400 }
401
402 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
403 int idx, struct survey_info *survey)
404 {
405 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
406
407 return drv_get_survey(local, idx, survey);
408 }
409
410 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
411 u8 *mac, struct station_info *sinfo)
412 {
413 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
414 struct sta_info *sta;
415 int ret = -ENOENT;
416
417 rcu_read_lock();
418
419 sta = sta_info_get_bss(sdata, mac);
420 if (sta) {
421 ret = 0;
422 sta_set_sinfo(sta, sinfo);
423 }
424
425 rcu_read_unlock();
426
427 return ret;
428 }
429
430 /*
431 * This handles both adding a beacon and setting new beacon info
432 */
433 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
434 struct beacon_parameters *params)
435 {
436 struct beacon_data *new, *old;
437 int new_head_len, new_tail_len;
438 int size;
439 int err = -EINVAL;
440
441 old = sdata->u.ap.beacon;
442
443 /* head must not be zero-length */
444 if (params->head && !params->head_len)
445 return -EINVAL;
446
447 /*
448 * This is a kludge. beacon interval should really be part
449 * of the beacon information.
450 */
451 if (params->interval &&
452 (sdata->vif.bss_conf.beacon_int != params->interval)) {
453 sdata->vif.bss_conf.beacon_int = params->interval;
454 ieee80211_bss_info_change_notify(sdata,
455 BSS_CHANGED_BEACON_INT);
456 }
457
458 /* Need to have a beacon head if we don't have one yet */
459 if (!params->head && !old)
460 return err;
461
462 /* sorry, no way to start beaconing without dtim period */
463 if (!params->dtim_period && !old)
464 return err;
465
466 /* new or old head? */
467 if (params->head)
468 new_head_len = params->head_len;
469 else
470 new_head_len = old->head_len;
471
472 /* new or old tail? */
473 if (params->tail || !old)
474 /* params->tail_len will be zero for !params->tail */
475 new_tail_len = params->tail_len;
476 else
477 new_tail_len = old->tail_len;
478
479 size = sizeof(*new) + new_head_len + new_tail_len;
480
481 new = kzalloc(size, GFP_KERNEL);
482 if (!new)
483 return -ENOMEM;
484
485 /* start filling the new info now */
486
487 /* new or old dtim period? */
488 if (params->dtim_period)
489 new->dtim_period = params->dtim_period;
490 else
491 new->dtim_period = old->dtim_period;
492
493 /*
494 * pointers go into the block we allocated,
495 * memory is | beacon_data | head | tail |
496 */
497 new->head = ((u8 *) new) + sizeof(*new);
498 new->tail = new->head + new_head_len;
499 new->head_len = new_head_len;
500 new->tail_len = new_tail_len;
501
502 /* copy in head */
503 if (params->head)
504 memcpy(new->head, params->head, new_head_len);
505 else
506 memcpy(new->head, old->head, new_head_len);
507
508 /* copy in optional tail */
509 if (params->tail)
510 memcpy(new->tail, params->tail, new_tail_len);
511 else
512 if (old)
513 memcpy(new->tail, old->tail, new_tail_len);
514
515 sdata->vif.bss_conf.dtim_period = new->dtim_period;
516
517 rcu_assign_pointer(sdata->u.ap.beacon, new);
518
519 synchronize_rcu();
520
521 kfree(old);
522
523 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
524 BSS_CHANGED_BEACON);
525 return 0;
526 }
527
528 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
529 struct beacon_parameters *params)
530 {
531 struct ieee80211_sub_if_data *sdata;
532 struct beacon_data *old;
533
534 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
535
536 old = sdata->u.ap.beacon;
537
538 if (old)
539 return -EALREADY;
540
541 return ieee80211_config_beacon(sdata, params);
542 }
543
544 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
545 struct beacon_parameters *params)
546 {
547 struct ieee80211_sub_if_data *sdata;
548 struct beacon_data *old;
549
550 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
551
552 old = sdata->u.ap.beacon;
553
554 if (!old)
555 return -ENOENT;
556
557 return ieee80211_config_beacon(sdata, params);
558 }
559
560 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
561 {
562 struct ieee80211_sub_if_data *sdata;
563 struct beacon_data *old;
564
565 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
566
567 old = sdata->u.ap.beacon;
568
569 if (!old)
570 return -ENOENT;
571
572 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
573 synchronize_rcu();
574 kfree(old);
575
576 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
577 return 0;
578 }
579
580 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
581 struct iapp_layer2_update {
582 u8 da[ETH_ALEN]; /* broadcast */
583 u8 sa[ETH_ALEN]; /* STA addr */
584 __be16 len; /* 6 */
585 u8 dsap; /* 0 */
586 u8 ssap; /* 0 */
587 u8 control;
588 u8 xid_info[3];
589 } __packed;
590
591 static void ieee80211_send_layer2_update(struct sta_info *sta)
592 {
593 struct iapp_layer2_update *msg;
594 struct sk_buff *skb;
595
596 /* Send Level 2 Update Frame to update forwarding tables in layer 2
597 * bridge devices */
598
599 skb = dev_alloc_skb(sizeof(*msg));
600 if (!skb)
601 return;
602 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
603
604 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
605 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
606
607 memset(msg->da, 0xff, ETH_ALEN);
608 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
609 msg->len = htons(6);
610 msg->dsap = 0;
611 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
612 msg->control = 0xaf; /* XID response lsb.1111F101.
613 * F=0 (no poll command; unsolicited frame) */
614 msg->xid_info[0] = 0x81; /* XID format identifier */
615 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
616 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
617
618 skb->dev = sta->sdata->dev;
619 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
620 memset(skb->cb, 0, sizeof(skb->cb));
621 netif_rx_ni(skb);
622 }
623
624 static void sta_apply_parameters(struct ieee80211_local *local,
625 struct sta_info *sta,
626 struct station_parameters *params)
627 {
628 unsigned long flags;
629 u32 rates;
630 int i, j;
631 struct ieee80211_supported_band *sband;
632 struct ieee80211_sub_if_data *sdata = sta->sdata;
633 u32 mask, set;
634
635 sband = local->hw.wiphy->bands[local->oper_channel->band];
636
637 spin_lock_irqsave(&sta->flaglock, flags);
638 mask = params->sta_flags_mask;
639 set = params->sta_flags_set;
640
641 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
642 sta->flags &= ~WLAN_STA_AUTHORIZED;
643 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
644 sta->flags |= WLAN_STA_AUTHORIZED;
645 }
646
647 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
648 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
649 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
650 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
651 }
652
653 if (mask & BIT(NL80211_STA_FLAG_WME)) {
654 sta->flags &= ~WLAN_STA_WME;
655 if (set & BIT(NL80211_STA_FLAG_WME))
656 sta->flags |= WLAN_STA_WME;
657 }
658
659 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
660 sta->flags &= ~WLAN_STA_MFP;
661 if (set & BIT(NL80211_STA_FLAG_MFP))
662 sta->flags |= WLAN_STA_MFP;
663 }
664 spin_unlock_irqrestore(&sta->flaglock, flags);
665
666 /*
667 * cfg80211 validates this (1-2007) and allows setting the AID
668 * only when creating a new station entry
669 */
670 if (params->aid)
671 sta->sta.aid = params->aid;
672
673 /*
674 * FIXME: updating the following information is racy when this
675 * function is called from ieee80211_change_station().
676 * However, all this information should be static so
677 * maybe we should just reject attemps to change it.
678 */
679
680 if (params->listen_interval >= 0)
681 sta->listen_interval = params->listen_interval;
682
683 if (params->supported_rates) {
684 rates = 0;
685
686 for (i = 0; i < params->supported_rates_len; i++) {
687 int rate = (params->supported_rates[i] & 0x7f) * 5;
688 for (j = 0; j < sband->n_bitrates; j++) {
689 if (sband->bitrates[j].bitrate == rate)
690 rates |= BIT(j);
691 }
692 }
693 sta->sta.supp_rates[local->oper_channel->band] = rates;
694 }
695
696 if (params->ht_capa)
697 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
698 params->ht_capa,
699 &sta->sta.ht_cap);
700
701 if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
702 switch (params->plink_action) {
703 case PLINK_ACTION_OPEN:
704 mesh_plink_open(sta);
705 break;
706 case PLINK_ACTION_BLOCK:
707 mesh_plink_block(sta);
708 break;
709 }
710 }
711 }
712
713 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
714 u8 *mac, struct station_parameters *params)
715 {
716 struct ieee80211_local *local = wiphy_priv(wiphy);
717 struct sta_info *sta;
718 struct ieee80211_sub_if_data *sdata;
719 int err;
720 int layer2_update;
721
722 if (params->vlan) {
723 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
724
725 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
726 sdata->vif.type != NL80211_IFTYPE_AP)
727 return -EINVAL;
728 } else
729 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
730
731 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
732 return -EINVAL;
733
734 if (is_multicast_ether_addr(mac))
735 return -EINVAL;
736
737 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
738 if (!sta)
739 return -ENOMEM;
740
741 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
742
743 sta_apply_parameters(local, sta, params);
744
745 rate_control_rate_init(sta);
746
747 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
748 sdata->vif.type == NL80211_IFTYPE_AP;
749
750 err = sta_info_insert_rcu(sta);
751 if (err) {
752 rcu_read_unlock();
753 return err;
754 }
755
756 if (layer2_update)
757 ieee80211_send_layer2_update(sta);
758
759 rcu_read_unlock();
760
761 return 0;
762 }
763
764 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
765 u8 *mac)
766 {
767 struct ieee80211_local *local = wiphy_priv(wiphy);
768 struct ieee80211_sub_if_data *sdata;
769
770 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
771
772 if (mac)
773 return sta_info_destroy_addr_bss(sdata, mac);
774
775 sta_info_flush(local, sdata);
776 return 0;
777 }
778
779 static int ieee80211_change_station(struct wiphy *wiphy,
780 struct net_device *dev,
781 u8 *mac,
782 struct station_parameters *params)
783 {
784 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
785 struct ieee80211_local *local = wiphy_priv(wiphy);
786 struct sta_info *sta;
787 struct ieee80211_sub_if_data *vlansdata;
788
789 rcu_read_lock();
790
791 sta = sta_info_get_bss(sdata, mac);
792 if (!sta) {
793 rcu_read_unlock();
794 return -ENOENT;
795 }
796
797 if (params->vlan && params->vlan != sta->sdata->dev) {
798 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
799
800 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
801 vlansdata->vif.type != NL80211_IFTYPE_AP) {
802 rcu_read_unlock();
803 return -EINVAL;
804 }
805
806 if (params->vlan->ieee80211_ptr->use_4addr) {
807 if (vlansdata->u.vlan.sta) {
808 rcu_read_unlock();
809 return -EBUSY;
810 }
811
812 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
813 }
814
815 sta->sdata = vlansdata;
816 ieee80211_send_layer2_update(sta);
817 }
818
819 sta_apply_parameters(local, sta, params);
820
821 rcu_read_unlock();
822
823 return 0;
824 }
825
826 #ifdef CONFIG_MAC80211_MESH
827 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
828 u8 *dst, u8 *next_hop)
829 {
830 struct ieee80211_sub_if_data *sdata;
831 struct mesh_path *mpath;
832 struct sta_info *sta;
833 int err;
834
835 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
836
837 rcu_read_lock();
838 sta = sta_info_get(sdata, next_hop);
839 if (!sta) {
840 rcu_read_unlock();
841 return -ENOENT;
842 }
843
844 err = mesh_path_add(dst, sdata);
845 if (err) {
846 rcu_read_unlock();
847 return err;
848 }
849
850 mpath = mesh_path_lookup(dst, sdata);
851 if (!mpath) {
852 rcu_read_unlock();
853 return -ENXIO;
854 }
855 mesh_path_fix_nexthop(mpath, sta);
856
857 rcu_read_unlock();
858 return 0;
859 }
860
861 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
862 u8 *dst)
863 {
864 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
865
866 if (dst)
867 return mesh_path_del(dst, sdata);
868
869 mesh_path_flush(sdata);
870 return 0;
871 }
872
873 static int ieee80211_change_mpath(struct wiphy *wiphy,
874 struct net_device *dev,
875 u8 *dst, u8 *next_hop)
876 {
877 struct ieee80211_sub_if_data *sdata;
878 struct mesh_path *mpath;
879 struct sta_info *sta;
880
881 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
882
883 rcu_read_lock();
884
885 sta = sta_info_get(sdata, next_hop);
886 if (!sta) {
887 rcu_read_unlock();
888 return -ENOENT;
889 }
890
891 mpath = mesh_path_lookup(dst, sdata);
892 if (!mpath) {
893 rcu_read_unlock();
894 return -ENOENT;
895 }
896
897 mesh_path_fix_nexthop(mpath, sta);
898
899 rcu_read_unlock();
900 return 0;
901 }
902
903 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
904 struct mpath_info *pinfo)
905 {
906 if (mpath->next_hop)
907 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
908 else
909 memset(next_hop, 0, ETH_ALEN);
910
911 pinfo->generation = mesh_paths_generation;
912
913 pinfo->filled = MPATH_INFO_FRAME_QLEN |
914 MPATH_INFO_SN |
915 MPATH_INFO_METRIC |
916 MPATH_INFO_EXPTIME |
917 MPATH_INFO_DISCOVERY_TIMEOUT |
918 MPATH_INFO_DISCOVERY_RETRIES |
919 MPATH_INFO_FLAGS;
920
921 pinfo->frame_qlen = mpath->frame_queue.qlen;
922 pinfo->sn = mpath->sn;
923 pinfo->metric = mpath->metric;
924 if (time_before(jiffies, mpath->exp_time))
925 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
926 pinfo->discovery_timeout =
927 jiffies_to_msecs(mpath->discovery_timeout);
928 pinfo->discovery_retries = mpath->discovery_retries;
929 pinfo->flags = 0;
930 if (mpath->flags & MESH_PATH_ACTIVE)
931 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
932 if (mpath->flags & MESH_PATH_RESOLVING)
933 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
934 if (mpath->flags & MESH_PATH_SN_VALID)
935 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
936 if (mpath->flags & MESH_PATH_FIXED)
937 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
938 if (mpath->flags & MESH_PATH_RESOLVING)
939 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
940
941 pinfo->flags = mpath->flags;
942 }
943
944 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
945 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
946
947 {
948 struct ieee80211_sub_if_data *sdata;
949 struct mesh_path *mpath;
950
951 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
952
953 rcu_read_lock();
954 mpath = mesh_path_lookup(dst, sdata);
955 if (!mpath) {
956 rcu_read_unlock();
957 return -ENOENT;
958 }
959 memcpy(dst, mpath->dst, ETH_ALEN);
960 mpath_set_pinfo(mpath, next_hop, pinfo);
961 rcu_read_unlock();
962 return 0;
963 }
964
965 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
966 int idx, u8 *dst, u8 *next_hop,
967 struct mpath_info *pinfo)
968 {
969 struct ieee80211_sub_if_data *sdata;
970 struct mesh_path *mpath;
971
972 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
973
974 rcu_read_lock();
975 mpath = mesh_path_lookup_by_idx(idx, sdata);
976 if (!mpath) {
977 rcu_read_unlock();
978 return -ENOENT;
979 }
980 memcpy(dst, mpath->dst, ETH_ALEN);
981 mpath_set_pinfo(mpath, next_hop, pinfo);
982 rcu_read_unlock();
983 return 0;
984 }
985
986 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
987 struct net_device *dev,
988 struct mesh_config *conf)
989 {
990 struct ieee80211_sub_if_data *sdata;
991 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
992
993 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
994 return 0;
995 }
996
997 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
998 {
999 return (mask >> (parm-1)) & 0x1;
1000 }
1001
1002 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1003 struct net_device *dev,
1004 const struct mesh_config *nconf, u32 mask)
1005 {
1006 struct mesh_config *conf;
1007 struct ieee80211_sub_if_data *sdata;
1008 struct ieee80211_if_mesh *ifmsh;
1009
1010 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1011 ifmsh = &sdata->u.mesh;
1012
1013 /* Set the config options which we are interested in setting */
1014 conf = &(sdata->u.mesh.mshcfg);
1015 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1016 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1017 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1018 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1019 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1020 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1021 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1022 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1023 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1024 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1025 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1026 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1027 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1028 conf->auto_open_plinks = nconf->auto_open_plinks;
1029 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1030 conf->dot11MeshHWMPmaxPREQretries =
1031 nconf->dot11MeshHWMPmaxPREQretries;
1032 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1033 conf->path_refresh_time = nconf->path_refresh_time;
1034 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1035 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1036 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1037 conf->dot11MeshHWMPactivePathTimeout =
1038 nconf->dot11MeshHWMPactivePathTimeout;
1039 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1040 conf->dot11MeshHWMPpreqMinInterval =
1041 nconf->dot11MeshHWMPpreqMinInterval;
1042 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1043 mask))
1044 conf->dot11MeshHWMPnetDiameterTraversalTime =
1045 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1046 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1047 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1048 ieee80211_mesh_root_setup(ifmsh);
1049 }
1050 return 0;
1051 }
1052
1053 #endif
1054
1055 static int ieee80211_change_bss(struct wiphy *wiphy,
1056 struct net_device *dev,
1057 struct bss_parameters *params)
1058 {
1059 struct ieee80211_sub_if_data *sdata;
1060 u32 changed = 0;
1061
1062 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1063
1064 if (params->use_cts_prot >= 0) {
1065 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1066 changed |= BSS_CHANGED_ERP_CTS_PROT;
1067 }
1068 if (params->use_short_preamble >= 0) {
1069 sdata->vif.bss_conf.use_short_preamble =
1070 params->use_short_preamble;
1071 changed |= BSS_CHANGED_ERP_PREAMBLE;
1072 }
1073
1074 if (!sdata->vif.bss_conf.use_short_slot &&
1075 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1076 sdata->vif.bss_conf.use_short_slot = true;
1077 changed |= BSS_CHANGED_ERP_SLOT;
1078 }
1079
1080 if (params->use_short_slot_time >= 0) {
1081 sdata->vif.bss_conf.use_short_slot =
1082 params->use_short_slot_time;
1083 changed |= BSS_CHANGED_ERP_SLOT;
1084 }
1085
1086 if (params->basic_rates) {
1087 int i, j;
1088 u32 rates = 0;
1089 struct ieee80211_local *local = wiphy_priv(wiphy);
1090 struct ieee80211_supported_band *sband =
1091 wiphy->bands[local->oper_channel->band];
1092
1093 for (i = 0; i < params->basic_rates_len; i++) {
1094 int rate = (params->basic_rates[i] & 0x7f) * 5;
1095 for (j = 0; j < sband->n_bitrates; j++) {
1096 if (sband->bitrates[j].bitrate == rate)
1097 rates |= BIT(j);
1098 }
1099 }
1100 sdata->vif.bss_conf.basic_rates = rates;
1101 changed |= BSS_CHANGED_BASIC_RATES;
1102 }
1103
1104 if (params->ap_isolate >= 0) {
1105 if (params->ap_isolate)
1106 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1107 else
1108 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1109 }
1110
1111 ieee80211_bss_info_change_notify(sdata, changed);
1112
1113 return 0;
1114 }
1115
1116 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1117 struct ieee80211_txq_params *params)
1118 {
1119 struct ieee80211_local *local = wiphy_priv(wiphy);
1120 struct ieee80211_tx_queue_params p;
1121
1122 if (!local->ops->conf_tx)
1123 return -EOPNOTSUPP;
1124
1125 memset(&p, 0, sizeof(p));
1126 p.aifs = params->aifs;
1127 p.cw_max = params->cwmax;
1128 p.cw_min = params->cwmin;
1129 p.txop = params->txop;
1130
1131 /*
1132 * Setting tx queue params disables u-apsd because it's only
1133 * called in master mode.
1134 */
1135 p.uapsd = false;
1136
1137 if (drv_conf_tx(local, params->queue, &p)) {
1138 wiphy_debug(local->hw.wiphy,
1139 "failed to set TX queue parameters for queue %d\n",
1140 params->queue);
1141 return -EINVAL;
1142 }
1143
1144 return 0;
1145 }
1146
1147 static int ieee80211_set_channel(struct wiphy *wiphy,
1148 struct net_device *netdev,
1149 struct ieee80211_channel *chan,
1150 enum nl80211_channel_type channel_type)
1151 {
1152 struct ieee80211_local *local = wiphy_priv(wiphy);
1153 struct ieee80211_sub_if_data *sdata = NULL;
1154
1155 if (netdev)
1156 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1157
1158 switch (ieee80211_get_channel_mode(local, NULL)) {
1159 case CHAN_MODE_HOPPING:
1160 return -EBUSY;
1161 case CHAN_MODE_FIXED:
1162 if (local->oper_channel != chan)
1163 return -EBUSY;
1164 if (!sdata && local->_oper_channel_type == channel_type)
1165 return 0;
1166 break;
1167 case CHAN_MODE_UNDEFINED:
1168 break;
1169 }
1170
1171 local->oper_channel = chan;
1172
1173 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1174 return -EBUSY;
1175
1176 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1177 if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1178 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1179
1180 return 0;
1181 }
1182
1183 #ifdef CONFIG_PM
1184 static int ieee80211_suspend(struct wiphy *wiphy)
1185 {
1186 return __ieee80211_suspend(wiphy_priv(wiphy));
1187 }
1188
1189 static int ieee80211_resume(struct wiphy *wiphy)
1190 {
1191 return __ieee80211_resume(wiphy_priv(wiphy));
1192 }
1193 #else
1194 #define ieee80211_suspend NULL
1195 #define ieee80211_resume NULL
1196 #endif
1197
1198 static int ieee80211_scan(struct wiphy *wiphy,
1199 struct net_device *dev,
1200 struct cfg80211_scan_request *req)
1201 {
1202 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1203
1204 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1205 case NL80211_IFTYPE_STATION:
1206 case NL80211_IFTYPE_ADHOC:
1207 case NL80211_IFTYPE_MESH_POINT:
1208 case NL80211_IFTYPE_P2P_CLIENT:
1209 break;
1210 case NL80211_IFTYPE_P2P_GO:
1211 if (sdata->local->ops->hw_scan)
1212 break;
1213 /* FIXME: implement NoA while scanning in software */
1214 return -EOPNOTSUPP;
1215 case NL80211_IFTYPE_AP:
1216 if (sdata->u.ap.beacon)
1217 return -EOPNOTSUPP;
1218 break;
1219 default:
1220 return -EOPNOTSUPP;
1221 }
1222
1223 return ieee80211_request_scan(sdata, req);
1224 }
1225
1226 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1227 struct cfg80211_auth_request *req)
1228 {
1229 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1230 }
1231
1232 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1233 struct cfg80211_assoc_request *req)
1234 {
1235 struct ieee80211_local *local = wiphy_priv(wiphy);
1236 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1237
1238 switch (ieee80211_get_channel_mode(local, sdata)) {
1239 case CHAN_MODE_HOPPING:
1240 return -EBUSY;
1241 case CHAN_MODE_FIXED:
1242 if (local->oper_channel == req->bss->channel)
1243 break;
1244 return -EBUSY;
1245 case CHAN_MODE_UNDEFINED:
1246 break;
1247 }
1248
1249 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1250 }
1251
1252 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1253 struct cfg80211_deauth_request *req,
1254 void *cookie)
1255 {
1256 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1257 req, cookie);
1258 }
1259
1260 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1261 struct cfg80211_disassoc_request *req,
1262 void *cookie)
1263 {
1264 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1265 req, cookie);
1266 }
1267
1268 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1269 struct cfg80211_ibss_params *params)
1270 {
1271 struct ieee80211_local *local = wiphy_priv(wiphy);
1272 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1273
1274 switch (ieee80211_get_channel_mode(local, sdata)) {
1275 case CHAN_MODE_HOPPING:
1276 return -EBUSY;
1277 case CHAN_MODE_FIXED:
1278 if (!params->channel_fixed)
1279 return -EBUSY;
1280 if (local->oper_channel == params->channel)
1281 break;
1282 return -EBUSY;
1283 case CHAN_MODE_UNDEFINED:
1284 break;
1285 }
1286
1287 return ieee80211_ibss_join(sdata, params);
1288 }
1289
1290 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1291 {
1292 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1293
1294 return ieee80211_ibss_leave(sdata);
1295 }
1296
1297 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1298 {
1299 struct ieee80211_local *local = wiphy_priv(wiphy);
1300 int err;
1301
1302 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1303 err = drv_set_coverage_class(local, wiphy->coverage_class);
1304
1305 if (err)
1306 return err;
1307 }
1308
1309 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1310 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1311
1312 if (err)
1313 return err;
1314 }
1315
1316 if (changed & WIPHY_PARAM_RETRY_SHORT)
1317 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1318 if (changed & WIPHY_PARAM_RETRY_LONG)
1319 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1320 if (changed &
1321 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1322 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1323
1324 return 0;
1325 }
1326
1327 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1328 enum nl80211_tx_power_setting type, int mbm)
1329 {
1330 struct ieee80211_local *local = wiphy_priv(wiphy);
1331 struct ieee80211_channel *chan = local->hw.conf.channel;
1332 u32 changes = 0;
1333
1334 switch (type) {
1335 case NL80211_TX_POWER_AUTOMATIC:
1336 local->user_power_level = -1;
1337 break;
1338 case NL80211_TX_POWER_LIMITED:
1339 if (mbm < 0 || (mbm % 100))
1340 return -EOPNOTSUPP;
1341 local->user_power_level = MBM_TO_DBM(mbm);
1342 break;
1343 case NL80211_TX_POWER_FIXED:
1344 if (mbm < 0 || (mbm % 100))
1345 return -EOPNOTSUPP;
1346 /* TODO: move to cfg80211 when it knows the channel */
1347 if (MBM_TO_DBM(mbm) > chan->max_power)
1348 return -EINVAL;
1349 local->user_power_level = MBM_TO_DBM(mbm);
1350 break;
1351 }
1352
1353 ieee80211_hw_config(local, changes);
1354
1355 return 0;
1356 }
1357
1358 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1359 {
1360 struct ieee80211_local *local = wiphy_priv(wiphy);
1361
1362 *dbm = local->hw.conf.power_level;
1363
1364 return 0;
1365 }
1366
1367 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1368 const u8 *addr)
1369 {
1370 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1371
1372 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1373
1374 return 0;
1375 }
1376
1377 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1378 {
1379 struct ieee80211_local *local = wiphy_priv(wiphy);
1380
1381 drv_rfkill_poll(local);
1382 }
1383
1384 #ifdef CONFIG_NL80211_TESTMODE
1385 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1386 {
1387 struct ieee80211_local *local = wiphy_priv(wiphy);
1388
1389 if (!local->ops->testmode_cmd)
1390 return -EOPNOTSUPP;
1391
1392 return local->ops->testmode_cmd(&local->hw, data, len);
1393 }
1394 #endif
1395
1396 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1397 enum ieee80211_smps_mode smps_mode)
1398 {
1399 const u8 *ap;
1400 enum ieee80211_smps_mode old_req;
1401 int err;
1402
1403 old_req = sdata->u.mgd.req_smps;
1404 sdata->u.mgd.req_smps = smps_mode;
1405
1406 if (old_req == smps_mode &&
1407 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1408 return 0;
1409
1410 /*
1411 * If not associated, or current association is not an HT
1412 * association, there's no need to send an action frame.
1413 */
1414 if (!sdata->u.mgd.associated ||
1415 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1416 mutex_lock(&sdata->local->iflist_mtx);
1417 ieee80211_recalc_smps(sdata->local);
1418 mutex_unlock(&sdata->local->iflist_mtx);
1419 return 0;
1420 }
1421
1422 ap = sdata->u.mgd.associated->bssid;
1423
1424 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1425 if (sdata->u.mgd.powersave)
1426 smps_mode = IEEE80211_SMPS_DYNAMIC;
1427 else
1428 smps_mode = IEEE80211_SMPS_OFF;
1429 }
1430
1431 /* send SM PS frame to AP */
1432 err = ieee80211_send_smps_action(sdata, smps_mode,
1433 ap, ap);
1434 if (err)
1435 sdata->u.mgd.req_smps = old_req;
1436
1437 return err;
1438 }
1439
1440 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1441 bool enabled, int timeout)
1442 {
1443 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1444 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1445
1446 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1447 return -EOPNOTSUPP;
1448
1449 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1450 return -EOPNOTSUPP;
1451
1452 if (enabled == sdata->u.mgd.powersave &&
1453 timeout == local->dynamic_ps_forced_timeout)
1454 return 0;
1455
1456 sdata->u.mgd.powersave = enabled;
1457 local->dynamic_ps_forced_timeout = timeout;
1458
1459 /* no change, but if automatic follow powersave */
1460 mutex_lock(&sdata->u.mgd.mtx);
1461 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1462 mutex_unlock(&sdata->u.mgd.mtx);
1463
1464 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1465 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1466
1467 ieee80211_recalc_ps(local, -1);
1468
1469 return 0;
1470 }
1471
1472 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1473 struct net_device *dev,
1474 s32 rssi_thold, u32 rssi_hyst)
1475 {
1476 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1477 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1478 struct ieee80211_vif *vif = &sdata->vif;
1479 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1480
1481 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1482 rssi_hyst == bss_conf->cqm_rssi_hyst)
1483 return 0;
1484
1485 bss_conf->cqm_rssi_thold = rssi_thold;
1486 bss_conf->cqm_rssi_hyst = rssi_hyst;
1487
1488 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1489 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1490 return -EOPNOTSUPP;
1491 return 0;
1492 }
1493
1494 /* tell the driver upon association, unless already associated */
1495 if (sdata->u.mgd.associated)
1496 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1497
1498 return 0;
1499 }
1500
1501 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1502 struct net_device *dev,
1503 const u8 *addr,
1504 const struct cfg80211_bitrate_mask *mask)
1505 {
1506 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1507 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1508 int i;
1509
1510 /*
1511 * This _could_ be supported by providing a hook for
1512 * drivers for this function, but at this point it
1513 * doesn't seem worth bothering.
1514 */
1515 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1516 return -EOPNOTSUPP;
1517
1518
1519 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1520 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1521
1522 return 0;
1523 }
1524
1525 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1526 struct net_device *dev,
1527 struct ieee80211_channel *chan,
1528 enum nl80211_channel_type channel_type,
1529 unsigned int duration,
1530 u64 *cookie)
1531 {
1532 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1533
1534 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1535 duration, cookie);
1536 }
1537
1538 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1539 struct net_device *dev,
1540 u64 cookie)
1541 {
1542 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1543
1544 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1545 }
1546
1547 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1548 struct ieee80211_channel *chan,
1549 enum nl80211_channel_type channel_type,
1550 bool channel_type_valid,
1551 const u8 *buf, size_t len, u64 *cookie)
1552 {
1553 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1554 struct ieee80211_local *local = sdata->local;
1555 struct sk_buff *skb;
1556 struct sta_info *sta;
1557 const struct ieee80211_mgmt *mgmt = (void *)buf;
1558 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1559 IEEE80211_TX_CTL_REQ_TX_STATUS;
1560
1561 /* Check that we are on the requested channel for transmission */
1562 if (chan != local->tmp_channel &&
1563 chan != local->oper_channel)
1564 return -EBUSY;
1565 if (channel_type_valid &&
1566 (channel_type != local->tmp_channel_type &&
1567 channel_type != local->_oper_channel_type))
1568 return -EBUSY;
1569
1570 switch (sdata->vif.type) {
1571 case NL80211_IFTYPE_ADHOC:
1572 case NL80211_IFTYPE_AP:
1573 case NL80211_IFTYPE_AP_VLAN:
1574 case NL80211_IFTYPE_P2P_GO:
1575 if (!ieee80211_is_action(mgmt->frame_control) ||
1576 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1577 break;
1578 rcu_read_lock();
1579 sta = sta_info_get(sdata, mgmt->da);
1580 rcu_read_unlock();
1581 if (!sta)
1582 return -ENOLINK;
1583 break;
1584 case NL80211_IFTYPE_STATION:
1585 case NL80211_IFTYPE_P2P_CLIENT:
1586 break;
1587 default:
1588 return -EOPNOTSUPP;
1589 }
1590
1591 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1592 if (!skb)
1593 return -ENOMEM;
1594 skb_reserve(skb, local->hw.extra_tx_headroom);
1595
1596 memcpy(skb_put(skb, len), buf, len);
1597
1598 IEEE80211_SKB_CB(skb)->flags = flags;
1599
1600 skb->dev = sdata->dev;
1601 ieee80211_tx_skb(sdata, skb);
1602
1603 *cookie = (unsigned long) skb;
1604 return 0;
1605 }
1606
1607 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
1608 struct net_device *dev,
1609 u16 frame_type, bool reg)
1610 {
1611 struct ieee80211_local *local = wiphy_priv(wiphy);
1612
1613 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
1614 return;
1615
1616 if (reg)
1617 local->probe_req_reg++;
1618 else
1619 local->probe_req_reg--;
1620
1621 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
1622 }
1623
1624 struct cfg80211_ops mac80211_config_ops = {
1625 .add_virtual_intf = ieee80211_add_iface,
1626 .del_virtual_intf = ieee80211_del_iface,
1627 .change_virtual_intf = ieee80211_change_iface,
1628 .add_key = ieee80211_add_key,
1629 .del_key = ieee80211_del_key,
1630 .get_key = ieee80211_get_key,
1631 .set_default_key = ieee80211_config_default_key,
1632 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1633 .add_beacon = ieee80211_add_beacon,
1634 .set_beacon = ieee80211_set_beacon,
1635 .del_beacon = ieee80211_del_beacon,
1636 .add_station = ieee80211_add_station,
1637 .del_station = ieee80211_del_station,
1638 .change_station = ieee80211_change_station,
1639 .get_station = ieee80211_get_station,
1640 .dump_station = ieee80211_dump_station,
1641 .dump_survey = ieee80211_dump_survey,
1642 #ifdef CONFIG_MAC80211_MESH
1643 .add_mpath = ieee80211_add_mpath,
1644 .del_mpath = ieee80211_del_mpath,
1645 .change_mpath = ieee80211_change_mpath,
1646 .get_mpath = ieee80211_get_mpath,
1647 .dump_mpath = ieee80211_dump_mpath,
1648 .set_mesh_params = ieee80211_set_mesh_params,
1649 .get_mesh_params = ieee80211_get_mesh_params,
1650 #endif
1651 .change_bss = ieee80211_change_bss,
1652 .set_txq_params = ieee80211_set_txq_params,
1653 .set_channel = ieee80211_set_channel,
1654 .suspend = ieee80211_suspend,
1655 .resume = ieee80211_resume,
1656 .scan = ieee80211_scan,
1657 .auth = ieee80211_auth,
1658 .assoc = ieee80211_assoc,
1659 .deauth = ieee80211_deauth,
1660 .disassoc = ieee80211_disassoc,
1661 .join_ibss = ieee80211_join_ibss,
1662 .leave_ibss = ieee80211_leave_ibss,
1663 .set_wiphy_params = ieee80211_set_wiphy_params,
1664 .set_tx_power = ieee80211_set_tx_power,
1665 .get_tx_power = ieee80211_get_tx_power,
1666 .set_wds_peer = ieee80211_set_wds_peer,
1667 .rfkill_poll = ieee80211_rfkill_poll,
1668 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1669 .set_power_mgmt = ieee80211_set_power_mgmt,
1670 .set_bitrate_mask = ieee80211_set_bitrate_mask,
1671 .remain_on_channel = ieee80211_remain_on_channel,
1672 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1673 .mgmt_tx = ieee80211_mgmt_tx,
1674 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1675 .mgmt_frame_register = ieee80211_mgmt_frame_register,
1676 };
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree