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intel-gtt: consolidate fake_agp driver structs
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / net / mac80211 / cfg.c
blob29ac8e1a509e48ec1170f61f668d8d3d5712d501
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 bool nl80211_type_check(enum nl80211_iftype type)
23 {
24 switch (type) {
25 case NL80211_IFTYPE_ADHOC:
26 case NL80211_IFTYPE_STATION:
27 case NL80211_IFTYPE_MONITOR:
28 #ifdef CONFIG_MAC80211_MESH
29 case NL80211_IFTYPE_MESH_POINT:
30 #endif
31 case NL80211_IFTYPE_AP:
32 case NL80211_IFTYPE_AP_VLAN:
33 case NL80211_IFTYPE_WDS:
34 return true;
35 default:
36 return false;
37 }
38 }
39
40 static bool nl80211_params_check(enum nl80211_iftype type,
41 struct vif_params *params)
42 {
43 if (!nl80211_type_check(type))
44 return false;
45
46 return true;
47 }
48
49 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
50 enum nl80211_iftype type, u32 *flags,
51 struct vif_params *params)
52 {
53 struct ieee80211_local *local = wiphy_priv(wiphy);
54 struct net_device *dev;
55 struct ieee80211_sub_if_data *sdata;
56 int err;
57
58 if (!nl80211_params_check(type, params))
59 return -EINVAL;
60
61 err = ieee80211_if_add(local, name, &dev, type, params);
62 if (err || type != NL80211_IFTYPE_MONITOR || !flags)
63 return err;
64
65 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66 sdata->u.mntr_flags = *flags;
67 return 0;
68 }
69
70 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
71 {
72 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
73
74 return 0;
75 }
76
77 static int ieee80211_change_iface(struct wiphy *wiphy,
78 struct net_device *dev,
79 enum nl80211_iftype type, u32 *flags,
80 struct vif_params *params)
81 {
82 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
83 int ret;
84
85 if (ieee80211_sdata_running(sdata))
86 return -EBUSY;
87
88 if (!nl80211_params_check(type, params))
89 return -EINVAL;
90
91 ret = ieee80211_if_change_type(sdata, type);
92 if (ret)
93 return ret;
94
95 if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
96 ieee80211_sdata_set_mesh_id(sdata,
97 params->mesh_id_len,
98 params->mesh_id);
99
100 if (type == NL80211_IFTYPE_AP_VLAN &&
101 params && params->use_4addr == 0)
102 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
103 else if (type == NL80211_IFTYPE_STATION &&
104 params && params->use_4addr >= 0)
105 sdata->u.mgd.use_4addr = params->use_4addr;
106
107 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags)
108 sdata->u.mntr_flags = *flags;
109
110 return 0;
111 }
112
113 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
114 u8 key_idx, const u8 *mac_addr,
115 struct key_params *params)
116 {
117 struct ieee80211_sub_if_data *sdata;
118 struct sta_info *sta = NULL;
119 enum ieee80211_key_alg alg;
120 struct ieee80211_key *key;
121 int err;
122
123 if (!netif_running(dev))
124 return -ENETDOWN;
125
126 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
127
128 switch (params->cipher) {
129 case WLAN_CIPHER_SUITE_WEP40:
130 case WLAN_CIPHER_SUITE_WEP104:
131 alg = ALG_WEP;
132 break;
133 case WLAN_CIPHER_SUITE_TKIP:
134 alg = ALG_TKIP;
135 break;
136 case WLAN_CIPHER_SUITE_CCMP:
137 alg = ALG_CCMP;
138 break;
139 case WLAN_CIPHER_SUITE_AES_CMAC:
140 alg = ALG_AES_CMAC;
141 break;
142 default:
143 return -EINVAL;
144 }
145
146 /* reject WEP and TKIP keys if WEP failed to initialize */
147 if ((alg == ALG_WEP || alg == ALG_TKIP) &&
148 IS_ERR(sdata->local->wep_tx_tfm))
149 return -EINVAL;
150
151 key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
152 params->seq_len, params->seq);
153 if (!key)
154 return -ENOMEM;
155
156 mutex_lock(&sdata->local->sta_mtx);
157
158 if (mac_addr) {
159 sta = sta_info_get_bss(sdata, mac_addr);
160 if (!sta) {
161 ieee80211_key_free(sdata->local, key);
162 err = -ENOENT;
163 goto out_unlock;
164 }
165 }
166
167 ieee80211_key_link(key, sdata, sta);
168
169 err = 0;
170 out_unlock:
171 mutex_unlock(&sdata->local->sta_mtx);
172
173 return err;
174 }
175
176 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
177 u8 key_idx, const u8 *mac_addr)
178 {
179 struct ieee80211_sub_if_data *sdata;
180 struct sta_info *sta;
181 int ret;
182
183 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
184
185 mutex_lock(&sdata->local->sta_mtx);
186
187 if (mac_addr) {
188 ret = -ENOENT;
189
190 sta = sta_info_get_bss(sdata, mac_addr);
191 if (!sta)
192 goto out_unlock;
193
194 if (sta->key) {
195 ieee80211_key_free(sdata->local, sta->key);
196 WARN_ON(sta->key);
197 ret = 0;
198 }
199
200 goto out_unlock;
201 }
202
203 if (!sdata->keys[key_idx]) {
204 ret = -ENOENT;
205 goto out_unlock;
206 }
207
208 ieee80211_key_free(sdata->local, sdata->keys[key_idx]);
209 WARN_ON(sdata->keys[key_idx]);
210
211 ret = 0;
212 out_unlock:
213 mutex_unlock(&sdata->local->sta_mtx);
214
215 return ret;
216 }
217
218 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
219 u8 key_idx, const u8 *mac_addr, void *cookie,
220 void (*callback)(void *cookie,
221 struct key_params *params))
222 {
223 struct ieee80211_sub_if_data *sdata;
224 struct sta_info *sta = NULL;
225 u8 seq[6] = {0};
226 struct key_params params;
227 struct ieee80211_key *key;
228 u32 iv32;
229 u16 iv16;
230 int err = -ENOENT;
231
232 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
233
234 rcu_read_lock();
235
236 if (mac_addr) {
237 sta = sta_info_get_bss(sdata, mac_addr);
238 if (!sta)
239 goto out;
240
241 key = sta->key;
242 } else
243 key = sdata->keys[key_idx];
244
245 if (!key)
246 goto out;
247
248 memset(&params, 0, sizeof(params));
249
250 switch (key->conf.alg) {
251 case ALG_TKIP:
252 params.cipher = WLAN_CIPHER_SUITE_TKIP;
253
254 iv32 = key->u.tkip.tx.iv32;
255 iv16 = key->u.tkip.tx.iv16;
256
257 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
258 drv_get_tkip_seq(sdata->local,
259 key->conf.hw_key_idx,
260 &iv32, &iv16);
261
262 seq[0] = iv16 & 0xff;
263 seq[1] = (iv16 >> 8) & 0xff;
264 seq[2] = iv32 & 0xff;
265 seq[3] = (iv32 >> 8) & 0xff;
266 seq[4] = (iv32 >> 16) & 0xff;
267 seq[5] = (iv32 >> 24) & 0xff;
268 params.seq = seq;
269 params.seq_len = 6;
270 break;
271 case ALG_CCMP:
272 params.cipher = WLAN_CIPHER_SUITE_CCMP;
273 seq[0] = key->u.ccmp.tx_pn[5];
274 seq[1] = key->u.ccmp.tx_pn[4];
275 seq[2] = key->u.ccmp.tx_pn[3];
276 seq[3] = key->u.ccmp.tx_pn[2];
277 seq[4] = key->u.ccmp.tx_pn[1];
278 seq[5] = key->u.ccmp.tx_pn[0];
279 params.seq = seq;
280 params.seq_len = 6;
281 break;
282 case ALG_WEP:
283 if (key->conf.keylen == 5)
284 params.cipher = WLAN_CIPHER_SUITE_WEP40;
285 else
286 params.cipher = WLAN_CIPHER_SUITE_WEP104;
287 break;
288 case ALG_AES_CMAC:
289 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
290 seq[0] = key->u.aes_cmac.tx_pn[5];
291 seq[1] = key->u.aes_cmac.tx_pn[4];
292 seq[2] = key->u.aes_cmac.tx_pn[3];
293 seq[3] = key->u.aes_cmac.tx_pn[2];
294 seq[4] = key->u.aes_cmac.tx_pn[1];
295 seq[5] = key->u.aes_cmac.tx_pn[0];
296 params.seq = seq;
297 params.seq_len = 6;
298 break;
299 }
300
301 params.key = key->conf.key;
302 params.key_len = key->conf.keylen;
303
304 callback(cookie, &params);
305 err = 0;
306
307 out:
308 rcu_read_unlock();
309 return err;
310 }
311
312 static int ieee80211_config_default_key(struct wiphy *wiphy,
313 struct net_device *dev,
314 u8 key_idx)
315 {
316 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
317
318 ieee80211_set_default_key(sdata, key_idx);
319
320 return 0;
321 }
322
323 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
324 struct net_device *dev,
325 u8 key_idx)
326 {
327 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
328
329 ieee80211_set_default_mgmt_key(sdata, key_idx);
330
331 return 0;
332 }
333
334 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
335 {
336 struct ieee80211_sub_if_data *sdata = sta->sdata;
337
338 sinfo->generation = sdata->local->sta_generation;
339
340 sinfo->filled = STATION_INFO_INACTIVE_TIME |
341 STATION_INFO_RX_BYTES |
342 STATION_INFO_TX_BYTES |
343 STATION_INFO_RX_PACKETS |
344 STATION_INFO_TX_PACKETS |
345 STATION_INFO_TX_BITRATE;
346
347 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
348 sinfo->rx_bytes = sta->rx_bytes;
349 sinfo->tx_bytes = sta->tx_bytes;
350 sinfo->rx_packets = sta->rx_packets;
351 sinfo->tx_packets = sta->tx_packets;
352
353 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
354 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
355 sinfo->filled |= STATION_INFO_SIGNAL;
356 sinfo->signal = (s8)sta->last_signal;
357 }
358
359 sinfo->txrate.flags = 0;
360 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
361 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
362 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
363 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
364 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
365 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
366
367 if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
368 struct ieee80211_supported_band *sband;
369 sband = sta->local->hw.wiphy->bands[
370 sta->local->hw.conf.channel->band];
371 sinfo->txrate.legacy =
372 sband->bitrates[sta->last_tx_rate.idx].bitrate;
373 } else
374 sinfo->txrate.mcs = sta->last_tx_rate.idx;
375
376 if (ieee80211_vif_is_mesh(&sdata->vif)) {
377 #ifdef CONFIG_MAC80211_MESH
378 sinfo->filled |= STATION_INFO_LLID |
379 STATION_INFO_PLID |
380 STATION_INFO_PLINK_STATE;
381
382 sinfo->llid = le16_to_cpu(sta->llid);
383 sinfo->plid = le16_to_cpu(sta->plid);
384 sinfo->plink_state = sta->plink_state;
385 #endif
386 }
387 }
388
389
390 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
391 int idx, u8 *mac, struct station_info *sinfo)
392 {
393 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
394 struct sta_info *sta;
395 int ret = -ENOENT;
396
397 rcu_read_lock();
398
399 sta = sta_info_get_by_idx(sdata, idx);
400 if (sta) {
401 ret = 0;
402 memcpy(mac, sta->sta.addr, ETH_ALEN);
403 sta_set_sinfo(sta, sinfo);
404 }
405
406 rcu_read_unlock();
407
408 return ret;
409 }
410
411 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
412 int idx, struct survey_info *survey)
413 {
414 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
415
416 return drv_get_survey(local, idx, survey);
417 }
418
419 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
420 u8 *mac, struct station_info *sinfo)
421 {
422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
423 struct sta_info *sta;
424 int ret = -ENOENT;
425
426 rcu_read_lock();
427
428 sta = sta_info_get_bss(sdata, mac);
429 if (sta) {
430 ret = 0;
431 sta_set_sinfo(sta, sinfo);
432 }
433
434 rcu_read_unlock();
435
436 return ret;
437 }
438
439 /*
440 * This handles both adding a beacon and setting new beacon info
441 */
442 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
443 struct beacon_parameters *params)
444 {
445 struct beacon_data *new, *old;
446 int new_head_len, new_tail_len;
447 int size;
448 int err = -EINVAL;
449
450 old = sdata->u.ap.beacon;
451
452 /* head must not be zero-length */
453 if (params->head && !params->head_len)
454 return -EINVAL;
455
456 /*
457 * This is a kludge. beacon interval should really be part
458 * of the beacon information.
459 */
460 if (params->interval &&
461 (sdata->vif.bss_conf.beacon_int != params->interval)) {
462 sdata->vif.bss_conf.beacon_int = params->interval;
463 ieee80211_bss_info_change_notify(sdata,
464 BSS_CHANGED_BEACON_INT);
465 }
466
467 /* Need to have a beacon head if we don't have one yet */
468 if (!params->head && !old)
469 return err;
470
471 /* sorry, no way to start beaconing without dtim period */
472 if (!params->dtim_period && !old)
473 return err;
474
475 /* new or old head? */
476 if (params->head)
477 new_head_len = params->head_len;
478 else
479 new_head_len = old->head_len;
480
481 /* new or old tail? */
482 if (params->tail || !old)
483 /* params->tail_len will be zero for !params->tail */
484 new_tail_len = params->tail_len;
485 else
486 new_tail_len = old->tail_len;
487
488 size = sizeof(*new) + new_head_len + new_tail_len;
489
490 new = kzalloc(size, GFP_KERNEL);
491 if (!new)
492 return -ENOMEM;
493
494 /* start filling the new info now */
495
496 /* new or old dtim period? */
497 if (params->dtim_period)
498 new->dtim_period = params->dtim_period;
499 else
500 new->dtim_period = old->dtim_period;
501
502 /*
503 * pointers go into the block we allocated,
504 * memory is | beacon_data | head | tail |
505 */
506 new->head = ((u8 *) new) + sizeof(*new);
507 new->tail = new->head + new_head_len;
508 new->head_len = new_head_len;
509 new->tail_len = new_tail_len;
510
511 /* copy in head */
512 if (params->head)
513 memcpy(new->head, params->head, new_head_len);
514 else
515 memcpy(new->head, old->head, new_head_len);
516
517 /* copy in optional tail */
518 if (params->tail)
519 memcpy(new->tail, params->tail, new_tail_len);
520 else
521 if (old)
522 memcpy(new->tail, old->tail, new_tail_len);
523
524 sdata->vif.bss_conf.dtim_period = new->dtim_period;
525
526 rcu_assign_pointer(sdata->u.ap.beacon, new);
527
528 synchronize_rcu();
529
530 kfree(old);
531
532 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
533 BSS_CHANGED_BEACON);
534 return 0;
535 }
536
537 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
538 struct beacon_parameters *params)
539 {
540 struct ieee80211_sub_if_data *sdata;
541 struct beacon_data *old;
542
543 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
544
545 old = sdata->u.ap.beacon;
546
547 if (old)
548 return -EALREADY;
549
550 return ieee80211_config_beacon(sdata, params);
551 }
552
553 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
554 struct beacon_parameters *params)
555 {
556 struct ieee80211_sub_if_data *sdata;
557 struct beacon_data *old;
558
559 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
560
561 old = sdata->u.ap.beacon;
562
563 if (!old)
564 return -ENOENT;
565
566 return ieee80211_config_beacon(sdata, params);
567 }
568
569 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
570 {
571 struct ieee80211_sub_if_data *sdata;
572 struct beacon_data *old;
573
574 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
575
576 old = sdata->u.ap.beacon;
577
578 if (!old)
579 return -ENOENT;
580
581 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
582 synchronize_rcu();
583 kfree(old);
584
585 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
586 return 0;
587 }
588
589 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
590 struct iapp_layer2_update {
591 u8 da[ETH_ALEN]; /* broadcast */
592 u8 sa[ETH_ALEN]; /* STA addr */
593 __be16 len; /* 6 */
594 u8 dsap; /* 0 */
595 u8 ssap; /* 0 */
596 u8 control;
597 u8 xid_info[3];
598 } __packed;
599
600 static void ieee80211_send_layer2_update(struct sta_info *sta)
601 {
602 struct iapp_layer2_update *msg;
603 struct sk_buff *skb;
604
605 /* Send Level 2 Update Frame to update forwarding tables in layer 2
606 * bridge devices */
607
608 skb = dev_alloc_skb(sizeof(*msg));
609 if (!skb)
610 return;
611 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
612
613 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
614 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
615
616 memset(msg->da, 0xff, ETH_ALEN);
617 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
618 msg->len = htons(6);
619 msg->dsap = 0;
620 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
621 msg->control = 0xaf; /* XID response lsb.1111F101.
622 * F=0 (no poll command; unsolicited frame) */
623 msg->xid_info[0] = 0x81; /* XID format identifier */
624 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
625 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
626
627 skb->dev = sta->sdata->dev;
628 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
629 memset(skb->cb, 0, sizeof(skb->cb));
630 netif_rx_ni(skb);
631 }
632
633 static void sta_apply_parameters(struct ieee80211_local *local,
634 struct sta_info *sta,
635 struct station_parameters *params)
636 {
637 u32 rates;
638 int i, j;
639 struct ieee80211_supported_band *sband;
640 struct ieee80211_sub_if_data *sdata = sta->sdata;
641 u32 mask, set;
642
643 sband = local->hw.wiphy->bands[local->oper_channel->band];
644
645 spin_lock_bh(&sta->lock);
646 mask = params->sta_flags_mask;
647 set = params->sta_flags_set;
648
649 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
650 sta->flags &= ~WLAN_STA_AUTHORIZED;
651 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
652 sta->flags |= WLAN_STA_AUTHORIZED;
653 }
654
655 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
656 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
657 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
658 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
659 }
660
661 if (mask & BIT(NL80211_STA_FLAG_WME)) {
662 sta->flags &= ~WLAN_STA_WME;
663 if (set & BIT(NL80211_STA_FLAG_WME))
664 sta->flags |= WLAN_STA_WME;
665 }
666
667 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
668 sta->flags &= ~WLAN_STA_MFP;
669 if (set & BIT(NL80211_STA_FLAG_MFP))
670 sta->flags |= WLAN_STA_MFP;
671 }
672 spin_unlock_bh(&sta->lock);
673
674 /*
675 * cfg80211 validates this (1-2007) and allows setting the AID
676 * only when creating a new station entry
677 */
678 if (params->aid)
679 sta->sta.aid = params->aid;
680
681 /*
682 * FIXME: updating the following information is racy when this
683 * function is called from ieee80211_change_station().
684 * However, all this information should be static so
685 * maybe we should just reject attemps to change it.
686 */
687
688 if (params->listen_interval >= 0)
689 sta->listen_interval = params->listen_interval;
690
691 if (params->supported_rates) {
692 rates = 0;
693
694 for (i = 0; i < params->supported_rates_len; i++) {
695 int rate = (params->supported_rates[i] & 0x7f) * 5;
696 for (j = 0; j < sband->n_bitrates; j++) {
697 if (sband->bitrates[j].bitrate == rate)
698 rates |= BIT(j);
699 }
700 }
701 sta->sta.supp_rates[local->oper_channel->band] = rates;
702 }
703
704 if (params->ht_capa)
705 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
706 params->ht_capa,
707 &sta->sta.ht_cap);
708
709 if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
710 switch (params->plink_action) {
711 case PLINK_ACTION_OPEN:
712 mesh_plink_open(sta);
713 break;
714 case PLINK_ACTION_BLOCK:
715 mesh_plink_block(sta);
716 break;
717 }
718 }
719 }
720
721 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
722 u8 *mac, struct station_parameters *params)
723 {
724 struct ieee80211_local *local = wiphy_priv(wiphy);
725 struct sta_info *sta;
726 struct ieee80211_sub_if_data *sdata;
727 int err;
728 int layer2_update;
729
730 if (params->vlan) {
731 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
732
733 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
734 sdata->vif.type != NL80211_IFTYPE_AP)
735 return -EINVAL;
736 } else
737 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
738
739 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
740 return -EINVAL;
741
742 if (is_multicast_ether_addr(mac))
743 return -EINVAL;
744
745 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
746 if (!sta)
747 return -ENOMEM;
748
749 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
750
751 sta_apply_parameters(local, sta, params);
752
753 rate_control_rate_init(sta);
754
755 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
756 sdata->vif.type == NL80211_IFTYPE_AP;
757
758 err = sta_info_insert_rcu(sta);
759 if (err) {
760 rcu_read_unlock();
761 return err;
762 }
763
764 if (layer2_update)
765 ieee80211_send_layer2_update(sta);
766
767 rcu_read_unlock();
768
769 return 0;
770 }
771
772 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
773 u8 *mac)
774 {
775 struct ieee80211_local *local = wiphy_priv(wiphy);
776 struct ieee80211_sub_if_data *sdata;
777
778 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
779
780 if (mac)
781 return sta_info_destroy_addr_bss(sdata, mac);
782
783 sta_info_flush(local, sdata);
784 return 0;
785 }
786
787 static int ieee80211_change_station(struct wiphy *wiphy,
788 struct net_device *dev,
789 u8 *mac,
790 struct station_parameters *params)
791 {
792 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
793 struct ieee80211_local *local = wiphy_priv(wiphy);
794 struct sta_info *sta;
795 struct ieee80211_sub_if_data *vlansdata;
796
797 rcu_read_lock();
798
799 sta = sta_info_get_bss(sdata, mac);
800 if (!sta) {
801 rcu_read_unlock();
802 return -ENOENT;
803 }
804
805 if (params->vlan && params->vlan != sta->sdata->dev) {
806 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
807
808 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
809 vlansdata->vif.type != NL80211_IFTYPE_AP) {
810 rcu_read_unlock();
811 return -EINVAL;
812 }
813
814 if (params->vlan->ieee80211_ptr->use_4addr) {
815 if (vlansdata->u.vlan.sta) {
816 rcu_read_unlock();
817 return -EBUSY;
818 }
819
820 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
821 }
822
823 sta->sdata = vlansdata;
824 ieee80211_send_layer2_update(sta);
825 }
826
827 sta_apply_parameters(local, sta, params);
828
829 rcu_read_unlock();
830
831 return 0;
832 }
833
834 #ifdef CONFIG_MAC80211_MESH
835 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
836 u8 *dst, u8 *next_hop)
837 {
838 struct ieee80211_sub_if_data *sdata;
839 struct mesh_path *mpath;
840 struct sta_info *sta;
841 int err;
842
843 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
844
845 rcu_read_lock();
846 sta = sta_info_get(sdata, next_hop);
847 if (!sta) {
848 rcu_read_unlock();
849 return -ENOENT;
850 }
851
852 err = mesh_path_add(dst, sdata);
853 if (err) {
854 rcu_read_unlock();
855 return err;
856 }
857
858 mpath = mesh_path_lookup(dst, sdata);
859 if (!mpath) {
860 rcu_read_unlock();
861 return -ENXIO;
862 }
863 mesh_path_fix_nexthop(mpath, sta);
864
865 rcu_read_unlock();
866 return 0;
867 }
868
869 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
870 u8 *dst)
871 {
872 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
873
874 if (dst)
875 return mesh_path_del(dst, sdata);
876
877 mesh_path_flush(sdata);
878 return 0;
879 }
880
881 static int ieee80211_change_mpath(struct wiphy *wiphy,
882 struct net_device *dev,
883 u8 *dst, u8 *next_hop)
884 {
885 struct ieee80211_sub_if_data *sdata;
886 struct mesh_path *mpath;
887 struct sta_info *sta;
888
889 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
890
891 rcu_read_lock();
892
893 sta = sta_info_get(sdata, next_hop);
894 if (!sta) {
895 rcu_read_unlock();
896 return -ENOENT;
897 }
898
899 mpath = mesh_path_lookup(dst, sdata);
900 if (!mpath) {
901 rcu_read_unlock();
902 return -ENOENT;
903 }
904
905 mesh_path_fix_nexthop(mpath, sta);
906
907 rcu_read_unlock();
908 return 0;
909 }
910
911 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
912 struct mpath_info *pinfo)
913 {
914 if (mpath->next_hop)
915 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
916 else
917 memset(next_hop, 0, ETH_ALEN);
918
919 pinfo->generation = mesh_paths_generation;
920
921 pinfo->filled = MPATH_INFO_FRAME_QLEN |
922 MPATH_INFO_SN |
923 MPATH_INFO_METRIC |
924 MPATH_INFO_EXPTIME |
925 MPATH_INFO_DISCOVERY_TIMEOUT |
926 MPATH_INFO_DISCOVERY_RETRIES |
927 MPATH_INFO_FLAGS;
928
929 pinfo->frame_qlen = mpath->frame_queue.qlen;
930 pinfo->sn = mpath->sn;
931 pinfo->metric = mpath->metric;
932 if (time_before(jiffies, mpath->exp_time))
933 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
934 pinfo->discovery_timeout =
935 jiffies_to_msecs(mpath->discovery_timeout);
936 pinfo->discovery_retries = mpath->discovery_retries;
937 pinfo->flags = 0;
938 if (mpath->flags & MESH_PATH_ACTIVE)
939 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
940 if (mpath->flags & MESH_PATH_RESOLVING)
941 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
942 if (mpath->flags & MESH_PATH_SN_VALID)
943 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
944 if (mpath->flags & MESH_PATH_FIXED)
945 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
946 if (mpath->flags & MESH_PATH_RESOLVING)
947 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
948
949 pinfo->flags = mpath->flags;
950 }
951
952 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
953 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
954
955 {
956 struct ieee80211_sub_if_data *sdata;
957 struct mesh_path *mpath;
958
959 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
960
961 rcu_read_lock();
962 mpath = mesh_path_lookup(dst, sdata);
963 if (!mpath) {
964 rcu_read_unlock();
965 return -ENOENT;
966 }
967 memcpy(dst, mpath->dst, ETH_ALEN);
968 mpath_set_pinfo(mpath, next_hop, pinfo);
969 rcu_read_unlock();
970 return 0;
971 }
972
973 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
974 int idx, u8 *dst, u8 *next_hop,
975 struct mpath_info *pinfo)
976 {
977 struct ieee80211_sub_if_data *sdata;
978 struct mesh_path *mpath;
979
980 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
981
982 rcu_read_lock();
983 mpath = mesh_path_lookup_by_idx(idx, sdata);
984 if (!mpath) {
985 rcu_read_unlock();
986 return -ENOENT;
987 }
988 memcpy(dst, mpath->dst, ETH_ALEN);
989 mpath_set_pinfo(mpath, next_hop, pinfo);
990 rcu_read_unlock();
991 return 0;
992 }
993
994 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
995 struct net_device *dev,
996 struct mesh_config *conf)
997 {
998 struct ieee80211_sub_if_data *sdata;
999 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1000
1001 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1002 return 0;
1003 }
1004
1005 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1006 {
1007 return (mask >> (parm-1)) & 0x1;
1008 }
1009
1010 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1011 struct net_device *dev,
1012 const struct mesh_config *nconf, u32 mask)
1013 {
1014 struct mesh_config *conf;
1015 struct ieee80211_sub_if_data *sdata;
1016 struct ieee80211_if_mesh *ifmsh;
1017
1018 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1019 ifmsh = &sdata->u.mesh;
1020
1021 /* Set the config options which we are interested in setting */
1022 conf = &(sdata->u.mesh.mshcfg);
1023 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1024 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1025 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1026 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1027 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1028 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1029 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1030 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1031 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1032 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1033 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1034 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1035 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1036 conf->auto_open_plinks = nconf->auto_open_plinks;
1037 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1038 conf->dot11MeshHWMPmaxPREQretries =
1039 nconf->dot11MeshHWMPmaxPREQretries;
1040 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1041 conf->path_refresh_time = nconf->path_refresh_time;
1042 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1043 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1044 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1045 conf->dot11MeshHWMPactivePathTimeout =
1046 nconf->dot11MeshHWMPactivePathTimeout;
1047 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1048 conf->dot11MeshHWMPpreqMinInterval =
1049 nconf->dot11MeshHWMPpreqMinInterval;
1050 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1051 mask))
1052 conf->dot11MeshHWMPnetDiameterTraversalTime =
1053 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1054 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1055 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1056 ieee80211_mesh_root_setup(ifmsh);
1057 }
1058 return 0;
1059 }
1060
1061 #endif
1062
1063 static int ieee80211_change_bss(struct wiphy *wiphy,
1064 struct net_device *dev,
1065 struct bss_parameters *params)
1066 {
1067 struct ieee80211_sub_if_data *sdata;
1068 u32 changed = 0;
1069
1070 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1071
1072 if (params->use_cts_prot >= 0) {
1073 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1074 changed |= BSS_CHANGED_ERP_CTS_PROT;
1075 }
1076 if (params->use_short_preamble >= 0) {
1077 sdata->vif.bss_conf.use_short_preamble =
1078 params->use_short_preamble;
1079 changed |= BSS_CHANGED_ERP_PREAMBLE;
1080 }
1081
1082 if (!sdata->vif.bss_conf.use_short_slot &&
1083 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1084 sdata->vif.bss_conf.use_short_slot = true;
1085 changed |= BSS_CHANGED_ERP_SLOT;
1086 }
1087
1088 if (params->use_short_slot_time >= 0) {
1089 sdata->vif.bss_conf.use_short_slot =
1090 params->use_short_slot_time;
1091 changed |= BSS_CHANGED_ERP_SLOT;
1092 }
1093
1094 if (params->basic_rates) {
1095 int i, j;
1096 u32 rates = 0;
1097 struct ieee80211_local *local = wiphy_priv(wiphy);
1098 struct ieee80211_supported_band *sband =
1099 wiphy->bands[local->oper_channel->band];
1100
1101 for (i = 0; i < params->basic_rates_len; i++) {
1102 int rate = (params->basic_rates[i] & 0x7f) * 5;
1103 for (j = 0; j < sband->n_bitrates; j++) {
1104 if (sband->bitrates[j].bitrate == rate)
1105 rates |= BIT(j);
1106 }
1107 }
1108 sdata->vif.bss_conf.basic_rates = rates;
1109 changed |= BSS_CHANGED_BASIC_RATES;
1110 }
1111
1112 if (params->ap_isolate >= 0) {
1113 if (params->ap_isolate)
1114 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1115 else
1116 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1117 }
1118
1119 ieee80211_bss_info_change_notify(sdata, changed);
1120
1121 return 0;
1122 }
1123
1124 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1125 struct ieee80211_txq_params *params)
1126 {
1127 struct ieee80211_local *local = wiphy_priv(wiphy);
1128 struct ieee80211_tx_queue_params p;
1129
1130 if (!local->ops->conf_tx)
1131 return -EOPNOTSUPP;
1132
1133 memset(&p, 0, sizeof(p));
1134 p.aifs = params->aifs;
1135 p.cw_max = params->cwmax;
1136 p.cw_min = params->cwmin;
1137 p.txop = params->txop;
1138
1139 /*
1140 * Setting tx queue params disables u-apsd because it's only
1141 * called in master mode.
1142 */
1143 p.uapsd = false;
1144
1145 if (drv_conf_tx(local, params->queue, &p)) {
1146 printk(KERN_DEBUG "%s: failed to set TX queue "
1147 "parameters for queue %d\n",
1148 wiphy_name(local->hw.wiphy), params->queue);
1149 return -EINVAL;
1150 }
1151
1152 return 0;
1153 }
1154
1155 static int ieee80211_set_channel(struct wiphy *wiphy,
1156 struct net_device *netdev,
1157 struct ieee80211_channel *chan,
1158 enum nl80211_channel_type channel_type)
1159 {
1160 struct ieee80211_local *local = wiphy_priv(wiphy);
1161 struct ieee80211_sub_if_data *sdata = NULL;
1162
1163 if (netdev)
1164 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1165
1166 switch (ieee80211_get_channel_mode(local, NULL)) {
1167 case CHAN_MODE_HOPPING:
1168 return -EBUSY;
1169 case CHAN_MODE_FIXED:
1170 if (local->oper_channel != chan)
1171 return -EBUSY;
1172 if (!sdata && local->_oper_channel_type == channel_type)
1173 return 0;
1174 break;
1175 case CHAN_MODE_UNDEFINED:
1176 break;
1177 }
1178
1179 local->oper_channel = chan;
1180
1181 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1182 return -EBUSY;
1183
1184 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1185 if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1186 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1187
1188 return 0;
1189 }
1190
1191 #ifdef CONFIG_PM
1192 static int ieee80211_suspend(struct wiphy *wiphy)
1193 {
1194 return __ieee80211_suspend(wiphy_priv(wiphy));
1195 }
1196
1197 static int ieee80211_resume(struct wiphy *wiphy)
1198 {
1199 return __ieee80211_resume(wiphy_priv(wiphy));
1200 }
1201 #else
1202 #define ieee80211_suspend NULL
1203 #define ieee80211_resume NULL
1204 #endif
1205
1206 static int ieee80211_scan(struct wiphy *wiphy,
1207 struct net_device *dev,
1208 struct cfg80211_scan_request *req)
1209 {
1210 struct ieee80211_sub_if_data *sdata;
1211
1212 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1213
1214 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1215 sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1216 sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1217 (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1218 return -EOPNOTSUPP;
1219
1220 return ieee80211_request_scan(sdata, req);
1221 }
1222
1223 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1224 struct cfg80211_auth_request *req)
1225 {
1226 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1227 }
1228
1229 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1230 struct cfg80211_assoc_request *req)
1231 {
1232 struct ieee80211_local *local = wiphy_priv(wiphy);
1233 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1234
1235 switch (ieee80211_get_channel_mode(local, sdata)) {
1236 case CHAN_MODE_HOPPING:
1237 return -EBUSY;
1238 case CHAN_MODE_FIXED:
1239 if (local->oper_channel == req->bss->channel)
1240 break;
1241 return -EBUSY;
1242 case CHAN_MODE_UNDEFINED:
1243 break;
1244 }
1245
1246 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1247 }
1248
1249 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1250 struct cfg80211_deauth_request *req,
1251 void *cookie)
1252 {
1253 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1254 req, cookie);
1255 }
1256
1257 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1258 struct cfg80211_disassoc_request *req,
1259 void *cookie)
1260 {
1261 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1262 req, cookie);
1263 }
1264
1265 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1266 struct cfg80211_ibss_params *params)
1267 {
1268 struct ieee80211_local *local = wiphy_priv(wiphy);
1269 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1270
1271 switch (ieee80211_get_channel_mode(local, sdata)) {
1272 case CHAN_MODE_HOPPING:
1273 return -EBUSY;
1274 case CHAN_MODE_FIXED:
1275 if (!params->channel_fixed)
1276 return -EBUSY;
1277 if (local->oper_channel == params->channel)
1278 break;
1279 return -EBUSY;
1280 case CHAN_MODE_UNDEFINED:
1281 break;
1282 }
1283
1284 return ieee80211_ibss_join(sdata, params);
1285 }
1286
1287 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1288 {
1289 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1290
1291 return ieee80211_ibss_leave(sdata);
1292 }
1293
1294 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1295 {
1296 struct ieee80211_local *local = wiphy_priv(wiphy);
1297 int err;
1298
1299 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1300 err = drv_set_coverage_class(local, wiphy->coverage_class);
1301
1302 if (err)
1303 return err;
1304 }
1305
1306 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1307 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1308
1309 if (err)
1310 return err;
1311 }
1312
1313 if (changed & WIPHY_PARAM_RETRY_SHORT)
1314 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1315 if (changed & WIPHY_PARAM_RETRY_LONG)
1316 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1317 if (changed &
1318 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1319 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1320
1321 return 0;
1322 }
1323
1324 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1325 enum nl80211_tx_power_setting type, int mbm)
1326 {
1327 struct ieee80211_local *local = wiphy_priv(wiphy);
1328 struct ieee80211_channel *chan = local->hw.conf.channel;
1329 u32 changes = 0;
1330
1331 switch (type) {
1332 case NL80211_TX_POWER_AUTOMATIC:
1333 local->user_power_level = -1;
1334 break;
1335 case NL80211_TX_POWER_LIMITED:
1336 if (mbm < 0 || (mbm % 100))
1337 return -EOPNOTSUPP;
1338 local->user_power_level = MBM_TO_DBM(mbm);
1339 break;
1340 case NL80211_TX_POWER_FIXED:
1341 if (mbm < 0 || (mbm % 100))
1342 return -EOPNOTSUPP;
1343 /* TODO: move to cfg80211 when it knows the channel */
1344 if (MBM_TO_DBM(mbm) > chan->max_power)
1345 return -EINVAL;
1346 local->user_power_level = MBM_TO_DBM(mbm);
1347 break;
1348 }
1349
1350 ieee80211_hw_config(local, changes);
1351
1352 return 0;
1353 }
1354
1355 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1356 {
1357 struct ieee80211_local *local = wiphy_priv(wiphy);
1358
1359 *dbm = local->hw.conf.power_level;
1360
1361 return 0;
1362 }
1363
1364 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1365 u8 *addr)
1366 {
1367 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1368
1369 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1370
1371 return 0;
1372 }
1373
1374 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1375 {
1376 struct ieee80211_local *local = wiphy_priv(wiphy);
1377
1378 drv_rfkill_poll(local);
1379 }
1380
1381 #ifdef CONFIG_NL80211_TESTMODE
1382 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1383 {
1384 struct ieee80211_local *local = wiphy_priv(wiphy);
1385
1386 if (!local->ops->testmode_cmd)
1387 return -EOPNOTSUPP;
1388
1389 return local->ops->testmode_cmd(&local->hw, data, len);
1390 }
1391 #endif
1392
1393 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1394 enum ieee80211_smps_mode smps_mode)
1395 {
1396 const u8 *ap;
1397 enum ieee80211_smps_mode old_req;
1398 int err;
1399
1400 old_req = sdata->u.mgd.req_smps;
1401 sdata->u.mgd.req_smps = smps_mode;
1402
1403 if (old_req == smps_mode &&
1404 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1405 return 0;
1406
1407 /*
1408 * If not associated, or current association is not an HT
1409 * association, there's no need to send an action frame.
1410 */
1411 if (!sdata->u.mgd.associated ||
1412 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1413 mutex_lock(&sdata->local->iflist_mtx);
1414 ieee80211_recalc_smps(sdata->local, sdata);
1415 mutex_unlock(&sdata->local->iflist_mtx);
1416 return 0;
1417 }
1418
1419 ap = sdata->u.mgd.associated->bssid;
1420
1421 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1422 if (sdata->u.mgd.powersave)
1423 smps_mode = IEEE80211_SMPS_DYNAMIC;
1424 else
1425 smps_mode = IEEE80211_SMPS_OFF;
1426 }
1427
1428 /* send SM PS frame to AP */
1429 err = ieee80211_send_smps_action(sdata, smps_mode,
1430 ap, ap);
1431 if (err)
1432 sdata->u.mgd.req_smps = old_req;
1433
1434 return err;
1435 }
1436
1437 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1438 bool enabled, int timeout)
1439 {
1440 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1441 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1442
1443 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1444 return -EOPNOTSUPP;
1445
1446 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1447 return -EOPNOTSUPP;
1448
1449 if (enabled == sdata->u.mgd.powersave &&
1450 timeout == local->dynamic_ps_forced_timeout)
1451 return 0;
1452
1453 sdata->u.mgd.powersave = enabled;
1454 local->dynamic_ps_forced_timeout = timeout;
1455
1456 /* no change, but if automatic follow powersave */
1457 mutex_lock(&sdata->u.mgd.mtx);
1458 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1459 mutex_unlock(&sdata->u.mgd.mtx);
1460
1461 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1462 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1463
1464 ieee80211_recalc_ps(local, -1);
1465
1466 return 0;
1467 }
1468
1469 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1470 struct net_device *dev,
1471 s32 rssi_thold, u32 rssi_hyst)
1472 {
1473 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1474 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1475 struct ieee80211_vif *vif = &sdata->vif;
1476 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1477
1478 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1479 rssi_hyst == bss_conf->cqm_rssi_hyst)
1480 return 0;
1481
1482 bss_conf->cqm_rssi_thold = rssi_thold;
1483 bss_conf->cqm_rssi_hyst = rssi_hyst;
1484
1485 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1486 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1487 return -EOPNOTSUPP;
1488 return 0;
1489 }
1490
1491 /* tell the driver upon association, unless already associated */
1492 if (sdata->u.mgd.associated)
1493 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1494
1495 return 0;
1496 }
1497
1498 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1499 struct net_device *dev,
1500 const u8 *addr,
1501 const struct cfg80211_bitrate_mask *mask)
1502 {
1503 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1504 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1505 int i;
1506
1507 /*
1508 * This _could_ be supported by providing a hook for
1509 * drivers for this function, but at this point it
1510 * doesn't seem worth bothering.
1511 */
1512 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1513 return -EOPNOTSUPP;
1514
1515
1516 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1517 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1518
1519 return 0;
1520 }
1521
1522 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1523 struct net_device *dev,
1524 struct ieee80211_channel *chan,
1525 enum nl80211_channel_type channel_type,
1526 unsigned int duration,
1527 u64 *cookie)
1528 {
1529 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1530
1531 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1532 duration, cookie);
1533 }
1534
1535 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1536 struct net_device *dev,
1537 u64 cookie)
1538 {
1539 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1540
1541 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1542 }
1543
1544 static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
1545 struct ieee80211_channel *chan,
1546 enum nl80211_channel_type channel_type,
1547 bool channel_type_valid,
1548 const u8 *buf, size_t len, u64 *cookie)
1549 {
1550 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1551 struct ieee80211_local *local = sdata->local;
1552 struct sk_buff *skb;
1553 struct sta_info *sta;
1554 const struct ieee80211_mgmt *mgmt = (void *)buf;
1555 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1556 IEEE80211_TX_CTL_REQ_TX_STATUS;
1557
1558 /* Check that we are on the requested channel for transmission */
1559 if (chan != local->tmp_channel &&
1560 chan != local->oper_channel)
1561 return -EBUSY;
1562 if (channel_type_valid &&
1563 (channel_type != local->tmp_channel_type &&
1564 channel_type != local->_oper_channel_type))
1565 return -EBUSY;
1566
1567 switch (sdata->vif.type) {
1568 case NL80211_IFTYPE_ADHOC:
1569 if (mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1570 break;
1571 rcu_read_lock();
1572 sta = sta_info_get(sdata, mgmt->da);
1573 rcu_read_unlock();
1574 if (!sta)
1575 return -ENOLINK;
1576 break;
1577 case NL80211_IFTYPE_STATION:
1578 if (!(sdata->u.mgd.flags & IEEE80211_STA_MFP_ENABLED))
1579 flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
1580 break;
1581 default:
1582 return -EOPNOTSUPP;
1583 }
1584
1585 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1586 if (!skb)
1587 return -ENOMEM;
1588 skb_reserve(skb, local->hw.extra_tx_headroom);
1589
1590 memcpy(skb_put(skb, len), buf, len);
1591
1592 IEEE80211_SKB_CB(skb)->flags = flags;
1593
1594 skb->dev = sdata->dev;
1595 ieee80211_tx_skb(sdata, skb);
1596
1597 *cookie = (unsigned long) skb;
1598 return 0;
1599 }
1600
1601 struct cfg80211_ops mac80211_config_ops = {
1602 .add_virtual_intf = ieee80211_add_iface,
1603 .del_virtual_intf = ieee80211_del_iface,
1604 .change_virtual_intf = ieee80211_change_iface,
1605 .add_key = ieee80211_add_key,
1606 .del_key = ieee80211_del_key,
1607 .get_key = ieee80211_get_key,
1608 .set_default_key = ieee80211_config_default_key,
1609 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1610 .add_beacon = ieee80211_add_beacon,
1611 .set_beacon = ieee80211_set_beacon,
1612 .del_beacon = ieee80211_del_beacon,
1613 .add_station = ieee80211_add_station,
1614 .del_station = ieee80211_del_station,
1615 .change_station = ieee80211_change_station,
1616 .get_station = ieee80211_get_station,
1617 .dump_station = ieee80211_dump_station,
1618 .dump_survey = ieee80211_dump_survey,
1619 #ifdef CONFIG_MAC80211_MESH
1620 .add_mpath = ieee80211_add_mpath,
1621 .del_mpath = ieee80211_del_mpath,
1622 .change_mpath = ieee80211_change_mpath,
1623 .get_mpath = ieee80211_get_mpath,
1624 .dump_mpath = ieee80211_dump_mpath,
1625 .set_mesh_params = ieee80211_set_mesh_params,
1626 .get_mesh_params = ieee80211_get_mesh_params,
1627 #endif
1628 .change_bss = ieee80211_change_bss,
1629 .set_txq_params = ieee80211_set_txq_params,
1630 .set_channel = ieee80211_set_channel,
1631 .suspend = ieee80211_suspend,
1632 .resume = ieee80211_resume,
1633 .scan = ieee80211_scan,
1634 .auth = ieee80211_auth,
1635 .assoc = ieee80211_assoc,
1636 .deauth = ieee80211_deauth,
1637 .disassoc = ieee80211_disassoc,
1638 .join_ibss = ieee80211_join_ibss,
1639 .leave_ibss = ieee80211_leave_ibss,
1640 .set_wiphy_params = ieee80211_set_wiphy_params,
1641 .set_tx_power = ieee80211_set_tx_power,
1642 .get_tx_power = ieee80211_get_tx_power,
1643 .set_wds_peer = ieee80211_set_wds_peer,
1644 .rfkill_poll = ieee80211_rfkill_poll,
1645 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1646 .set_power_mgmt = ieee80211_set_power_mgmt,
1647 .set_bitrate_mask = ieee80211_set_bitrate_mask,
1648 .remain_on_channel = ieee80211_remain_on_channel,
1649 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
1650 .action = ieee80211_action,
1651 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1652 };
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree