projects / deliverable / linux.git / blob
? search:


c484a882140ed7db639312acdce49a2431347ed8
[deliverable/linux.git] / net / mac80211 / cfg.c
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006, 2007 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 <net/net_namespace.h>
13 #include <linux/rcupdate.h>
14 #include <net/cfg80211.h>
15 #include "ieee80211_i.h"
16 #include "driver-ops.h"
17 #include "cfg.h"
18 #include "rate.h"
19 #include "mesh.h"
20
21 static bool nl80211_type_check(enum nl80211_iftype type)
22 {
23 switch (type) {
24 case NL80211_IFTYPE_ADHOC:
25 case NL80211_IFTYPE_STATION:
26 case NL80211_IFTYPE_MONITOR:
27 #ifdef CONFIG_MAC80211_MESH
28 case NL80211_IFTYPE_MESH_POINT:
29 #endif
30 case NL80211_IFTYPE_AP:
31 case NL80211_IFTYPE_AP_VLAN:
32 case NL80211_IFTYPE_WDS:
33 return true;
34 default:
35 return false;
36 }
37 }
38
39 static bool nl80211_params_check(enum nl80211_iftype type,
40 struct vif_params *params)
41 {
42 if (!nl80211_type_check(type))
43 return false;
44
45 return true;
46 }
47
48 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
49 enum nl80211_iftype type, u32 *flags,
50 struct vif_params *params)
51 {
52 struct ieee80211_local *local = wiphy_priv(wiphy);
53 struct net_device *dev;
54 struct ieee80211_sub_if_data *sdata;
55 int err;
56
57 if (!nl80211_params_check(type, params))
58 return -EINVAL;
59
60 err = ieee80211_if_add(local, name, &dev, type, params);
61 if (err || type != NL80211_IFTYPE_MONITOR || !flags)
62 return err;
63
64 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
65 sdata->u.mntr_flags = *flags;
66 return 0;
67 }
68
69 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
70 {
71 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
72
73 return 0;
74 }
75
76 static int ieee80211_change_iface(struct wiphy *wiphy,
77 struct net_device *dev,
78 enum nl80211_iftype type, u32 *flags,
79 struct vif_params *params)
80 {
81 struct ieee80211_sub_if_data *sdata;
82 int ret;
83
84 if (netif_running(dev))
85 return -EBUSY;
86
87 if (!nl80211_params_check(type, params))
88 return -EINVAL;
89
90 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
91
92 ret = ieee80211_if_change_type(sdata, type);
93 if (ret)
94 return ret;
95
96 if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
97 ieee80211_sdata_set_mesh_id(sdata,
98 params->mesh_id_len,
99 params->mesh_id);
100
101 if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags)
102 return 0;
103
104 if (type == NL80211_IFTYPE_AP_VLAN &&
105 params && params->use_4addr == 0)
106 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
107 else if (type == NL80211_IFTYPE_STATION &&
108 params && params->use_4addr >= 0)
109 sdata->u.mgd.use_4addr = params->use_4addr;
110
111 sdata->u.mntr_flags = *flags;
112 return 0;
113 }
114
115 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
116 u8 key_idx, const u8 *mac_addr,
117 struct key_params *params)
118 {
119 struct ieee80211_sub_if_data *sdata;
120 struct sta_info *sta = NULL;
121 enum ieee80211_key_alg alg;
122 struct ieee80211_key *key;
123 int err;
124
125 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
126
127 switch (params->cipher) {
128 case WLAN_CIPHER_SUITE_WEP40:
129 case WLAN_CIPHER_SUITE_WEP104:
130 alg = ALG_WEP;
131 break;
132 case WLAN_CIPHER_SUITE_TKIP:
133 alg = ALG_TKIP;
134 break;
135 case WLAN_CIPHER_SUITE_CCMP:
136 alg = ALG_CCMP;
137 break;
138 case WLAN_CIPHER_SUITE_AES_CMAC:
139 alg = ALG_AES_CMAC;
140 break;
141 default:
142 return -EINVAL;
143 }
144
145 key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key,
146 params->seq_len, params->seq);
147 if (!key)
148 return -ENOMEM;
149
150 rcu_read_lock();
151
152 if (mac_addr) {
153 sta = sta_info_get(sdata->local, mac_addr);
154 if (!sta) {
155 ieee80211_key_free(key);
156 err = -ENOENT;
157 goto out_unlock;
158 }
159 }
160
161 ieee80211_key_link(key, sdata, sta);
162
163 err = 0;
164 out_unlock:
165 rcu_read_unlock();
166
167 return err;
168 }
169
170 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
171 u8 key_idx, const u8 *mac_addr)
172 {
173 struct ieee80211_sub_if_data *sdata;
174 struct sta_info *sta;
175 int ret;
176
177 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
178
179 rcu_read_lock();
180
181 if (mac_addr) {
182 ret = -ENOENT;
183
184 sta = sta_info_get(sdata->local, mac_addr);
185 if (!sta)
186 goto out_unlock;
187
188 if (sta->key) {
189 ieee80211_key_free(sta->key);
190 WARN_ON(sta->key);
191 ret = 0;
192 }
193
194 goto out_unlock;
195 }
196
197 if (!sdata->keys[key_idx]) {
198 ret = -ENOENT;
199 goto out_unlock;
200 }
201
202 ieee80211_key_free(sdata->keys[key_idx]);
203 WARN_ON(sdata->keys[key_idx]);
204
205 ret = 0;
206 out_unlock:
207 rcu_read_unlock();
208
209 return ret;
210 }
211
212 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
213 u8 key_idx, const u8 *mac_addr, void *cookie,
214 void (*callback)(void *cookie,
215 struct key_params *params))
216 {
217 struct ieee80211_sub_if_data *sdata;
218 struct sta_info *sta = NULL;
219 u8 seq[6] = {0};
220 struct key_params params;
221 struct ieee80211_key *key;
222 u32 iv32;
223 u16 iv16;
224 int err = -ENOENT;
225
226 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
227
228 rcu_read_lock();
229
230 if (mac_addr) {
231 sta = sta_info_get(sdata->local, mac_addr);
232 if (!sta)
233 goto out;
234
235 key = sta->key;
236 } else
237 key = sdata->keys[key_idx];
238
239 if (!key)
240 goto out;
241
242 memset(&params, 0, sizeof(params));
243
244 switch (key->conf.alg) {
245 case ALG_TKIP:
246 params.cipher = WLAN_CIPHER_SUITE_TKIP;
247
248 iv32 = key->u.tkip.tx.iv32;
249 iv16 = key->u.tkip.tx.iv16;
250
251 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
252 drv_get_tkip_seq(sdata->local,
253 key->conf.hw_key_idx,
254 &iv32, &iv16);
255
256 seq[0] = iv16 & 0xff;
257 seq[1] = (iv16 >> 8) & 0xff;
258 seq[2] = iv32 & 0xff;
259 seq[3] = (iv32 >> 8) & 0xff;
260 seq[4] = (iv32 >> 16) & 0xff;
261 seq[5] = (iv32 >> 24) & 0xff;
262 params.seq = seq;
263 params.seq_len = 6;
264 break;
265 case ALG_CCMP:
266 params.cipher = WLAN_CIPHER_SUITE_CCMP;
267 seq[0] = key->u.ccmp.tx_pn[5];
268 seq[1] = key->u.ccmp.tx_pn[4];
269 seq[2] = key->u.ccmp.tx_pn[3];
270 seq[3] = key->u.ccmp.tx_pn[2];
271 seq[4] = key->u.ccmp.tx_pn[1];
272 seq[5] = key->u.ccmp.tx_pn[0];
273 params.seq = seq;
274 params.seq_len = 6;
275 break;
276 case ALG_WEP:
277 if (key->conf.keylen == 5)
278 params.cipher = WLAN_CIPHER_SUITE_WEP40;
279 else
280 params.cipher = WLAN_CIPHER_SUITE_WEP104;
281 break;
282 case ALG_AES_CMAC:
283 params.cipher = WLAN_CIPHER_SUITE_AES_CMAC;
284 seq[0] = key->u.aes_cmac.tx_pn[5];
285 seq[1] = key->u.aes_cmac.tx_pn[4];
286 seq[2] = key->u.aes_cmac.tx_pn[3];
287 seq[3] = key->u.aes_cmac.tx_pn[2];
288 seq[4] = key->u.aes_cmac.tx_pn[1];
289 seq[5] = key->u.aes_cmac.tx_pn[0];
290 params.seq = seq;
291 params.seq_len = 6;
292 break;
293 }
294
295 params.key = key->conf.key;
296 params.key_len = key->conf.keylen;
297
298 callback(cookie, &params);
299 err = 0;
300
301 out:
302 rcu_read_unlock();
303 return err;
304 }
305
306 static int ieee80211_config_default_key(struct wiphy *wiphy,
307 struct net_device *dev,
308 u8 key_idx)
309 {
310 struct ieee80211_sub_if_data *sdata;
311
312 rcu_read_lock();
313
314 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
315 ieee80211_set_default_key(sdata, key_idx);
316
317 rcu_read_unlock();
318
319 return 0;
320 }
321
322 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
323 struct net_device *dev,
324 u8 key_idx)
325 {
326 struct ieee80211_sub_if_data *sdata;
327
328 rcu_read_lock();
329
330 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
331 ieee80211_set_default_mgmt_key(sdata, key_idx);
332
333 rcu_read_unlock();
334
335 return 0;
336 }
337
338 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
339 {
340 struct ieee80211_sub_if_data *sdata = sta->sdata;
341
342 sinfo->generation = sdata->local->sta_generation;
343
344 sinfo->filled = STATION_INFO_INACTIVE_TIME |
345 STATION_INFO_RX_BYTES |
346 STATION_INFO_TX_BYTES |
347 STATION_INFO_RX_PACKETS |
348 STATION_INFO_TX_PACKETS |
349 STATION_INFO_TX_BITRATE;
350
351 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
352 sinfo->rx_bytes = sta->rx_bytes;
353 sinfo->tx_bytes = sta->tx_bytes;
354 sinfo->rx_packets = sta->rx_packets;
355 sinfo->tx_packets = sta->tx_packets;
356
357 if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
358 sinfo->filled |= STATION_INFO_SIGNAL;
359 sinfo->signal = (s8)sta->last_signal;
360 }
361
362 sinfo->txrate.flags = 0;
363 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
364 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
365 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
366 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
367 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
368 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
369
370 if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
371 struct ieee80211_supported_band *sband;
372 sband = sta->local->hw.wiphy->bands[
373 sta->local->hw.conf.channel->band];
374 sinfo->txrate.legacy =
375 sband->bitrates[sta->last_tx_rate.idx].bitrate;
376 } else
377 sinfo->txrate.mcs = sta->last_tx_rate.idx;
378
379 if (ieee80211_vif_is_mesh(&sdata->vif)) {
380 #ifdef CONFIG_MAC80211_MESH
381 sinfo->filled |= STATION_INFO_LLID |
382 STATION_INFO_PLID |
383 STATION_INFO_PLINK_STATE;
384
385 sinfo->llid = le16_to_cpu(sta->llid);
386 sinfo->plid = le16_to_cpu(sta->plid);
387 sinfo->plink_state = sta->plink_state;
388 #endif
389 }
390 }
391
392
393 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
394 int idx, u8 *mac, struct station_info *sinfo)
395 {
396 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
397 struct sta_info *sta;
398 int ret = -ENOENT;
399
400 rcu_read_lock();
401
402 sta = sta_info_get_by_idx(sdata, idx);
403 if (sta) {
404 ret = 0;
405 memcpy(mac, sta->sta.addr, ETH_ALEN);
406 sta_set_sinfo(sta, sinfo);
407 }
408
409 rcu_read_unlock();
410
411 return ret;
412 }
413
414 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
415 u8 *mac, struct station_info *sinfo)
416 {
417 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
418 struct sta_info *sta;
419 int ret = -ENOENT;
420
421 rcu_read_lock();
422
423 /* XXX: verify sta->dev == dev */
424
425 sta = sta_info_get(local, mac);
426 if (sta) {
427 ret = 0;
428 sta_set_sinfo(sta, sinfo);
429 }
430
431 rcu_read_unlock();
432
433 return ret;
434 }
435
436 /*
437 * This handles both adding a beacon and setting new beacon info
438 */
439 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
440 struct beacon_parameters *params)
441 {
442 struct beacon_data *new, *old;
443 int new_head_len, new_tail_len;
444 int size;
445 int err = -EINVAL;
446
447 old = sdata->u.ap.beacon;
448
449 /* head must not be zero-length */
450 if (params->head && !params->head_len)
451 return -EINVAL;
452
453 /*
454 * This is a kludge. beacon interval should really be part
455 * of the beacon information.
456 */
457 if (params->interval &&
458 (sdata->vif.bss_conf.beacon_int != params->interval)) {
459 sdata->vif.bss_conf.beacon_int = params->interval;
460 ieee80211_bss_info_change_notify(sdata,
461 BSS_CHANGED_BEACON_INT);
462 }
463
464 /* Need to have a beacon head if we don't have one yet */
465 if (!params->head && !old)
466 return err;
467
468 /* sorry, no way to start beaconing without dtim period */
469 if (!params->dtim_period && !old)
470 return err;
471
472 /* new or old head? */
473 if (params->head)
474 new_head_len = params->head_len;
475 else
476 new_head_len = old->head_len;
477
478 /* new or old tail? */
479 if (params->tail || !old)
480 /* params->tail_len will be zero for !params->tail */
481 new_tail_len = params->tail_len;
482 else
483 new_tail_len = old->tail_len;
484
485 size = sizeof(*new) + new_head_len + new_tail_len;
486
487 new = kzalloc(size, GFP_KERNEL);
488 if (!new)
489 return -ENOMEM;
490
491 /* start filling the new info now */
492
493 /* new or old dtim period? */
494 if (params->dtim_period)
495 new->dtim_period = params->dtim_period;
496 else
497 new->dtim_period = old->dtim_period;
498
499 /*
500 * pointers go into the block we allocated,
501 * memory is | beacon_data | head | tail |
502 */
503 new->head = ((u8 *) new) + sizeof(*new);
504 new->tail = new->head + new_head_len;
505 new->head_len = new_head_len;
506 new->tail_len = new_tail_len;
507
508 /* copy in head */
509 if (params->head)
510 memcpy(new->head, params->head, new_head_len);
511 else
512 memcpy(new->head, old->head, new_head_len);
513
514 /* copy in optional tail */
515 if (params->tail)
516 memcpy(new->tail, params->tail, new_tail_len);
517 else
518 if (old)
519 memcpy(new->tail, old->tail, new_tail_len);
520
521 rcu_assign_pointer(sdata->u.ap.beacon, new);
522
523 synchronize_rcu();
524
525 kfree(old);
526
527 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
528 BSS_CHANGED_BEACON);
529 return 0;
530 }
531
532 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
533 struct beacon_parameters *params)
534 {
535 struct ieee80211_sub_if_data *sdata;
536 struct beacon_data *old;
537
538 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
539
540 old = sdata->u.ap.beacon;
541
542 if (old)
543 return -EALREADY;
544
545 return ieee80211_config_beacon(sdata, params);
546 }
547
548 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
549 struct beacon_parameters *params)
550 {
551 struct ieee80211_sub_if_data *sdata;
552 struct beacon_data *old;
553
554 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
555
556 old = sdata->u.ap.beacon;
557
558 if (!old)
559 return -ENOENT;
560
561 return ieee80211_config_beacon(sdata, params);
562 }
563
564 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
565 {
566 struct ieee80211_sub_if_data *sdata;
567 struct beacon_data *old;
568
569 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
570
571 old = sdata->u.ap.beacon;
572
573 if (!old)
574 return -ENOENT;
575
576 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
577 synchronize_rcu();
578 kfree(old);
579
580 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
581 return 0;
582 }
583
584 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
585 struct iapp_layer2_update {
586 u8 da[ETH_ALEN]; /* broadcast */
587 u8 sa[ETH_ALEN]; /* STA addr */
588 __be16 len; /* 6 */
589 u8 dsap; /* 0 */
590 u8 ssap; /* 0 */
591 u8 control;
592 u8 xid_info[3];
593 } __attribute__ ((packed));
594
595 static void ieee80211_send_layer2_update(struct sta_info *sta)
596 {
597 struct iapp_layer2_update *msg;
598 struct sk_buff *skb;
599
600 /* Send Level 2 Update Frame to update forwarding tables in layer 2
601 * bridge devices */
602
603 skb = dev_alloc_skb(sizeof(*msg));
604 if (!skb)
605 return;
606 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
607
608 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
609 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
610
611 memset(msg->da, 0xff, ETH_ALEN);
612 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
613 msg->len = htons(6);
614 msg->dsap = 0;
615 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
616 msg->control = 0xaf; /* XID response lsb.1111F101.
617 * F=0 (no poll command; unsolicited frame) */
618 msg->xid_info[0] = 0x81; /* XID format identifier */
619 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
620 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
621
622 skb->dev = sta->sdata->dev;
623 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
624 memset(skb->cb, 0, sizeof(skb->cb));
625 netif_rx(skb);
626 }
627
628 static void sta_apply_parameters(struct ieee80211_local *local,
629 struct sta_info *sta,
630 struct station_parameters *params)
631 {
632 u32 rates;
633 int i, j;
634 struct ieee80211_supported_band *sband;
635 struct ieee80211_sub_if_data *sdata = sta->sdata;
636 u32 mask, set;
637
638 sband = local->hw.wiphy->bands[local->oper_channel->band];
639
640 spin_lock_bh(&sta->lock);
641 mask = params->sta_flags_mask;
642 set = params->sta_flags_set;
643
644 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
645 sta->flags &= ~WLAN_STA_AUTHORIZED;
646 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
647 sta->flags |= WLAN_STA_AUTHORIZED;
648 }
649
650 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
651 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
652 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
653 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
654 }
655
656 if (mask & BIT(NL80211_STA_FLAG_WME)) {
657 sta->flags &= ~WLAN_STA_WME;
658 if (set & BIT(NL80211_STA_FLAG_WME))
659 sta->flags |= WLAN_STA_WME;
660 }
661
662 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
663 sta->flags &= ~WLAN_STA_MFP;
664 if (set & BIT(NL80211_STA_FLAG_MFP))
665 sta->flags |= WLAN_STA_MFP;
666 }
667 spin_unlock_bh(&sta->lock);
668
669 /*
670 * cfg80211 validates this (1-2007) and allows setting the AID
671 * only when creating a new station entry
672 */
673 if (params->aid)
674 sta->sta.aid = params->aid;
675
676 /*
677 * FIXME: updating the following information is racy when this
678 * function is called from ieee80211_change_station().
679 * However, all this information should be static so
680 * maybe we should just reject attemps to change it.
681 */
682
683 if (params->listen_interval >= 0)
684 sta->listen_interval = params->listen_interval;
685
686 if (params->supported_rates) {
687 rates = 0;
688
689 for (i = 0; i < params->supported_rates_len; i++) {
690 int rate = (params->supported_rates[i] & 0x7f) * 5;
691 for (j = 0; j < sband->n_bitrates; j++) {
692 if (sband->bitrates[j].bitrate == rate)
693 rates |= BIT(j);
694 }
695 }
696 sta->sta.supp_rates[local->oper_channel->band] = rates;
697 }
698
699 if (params->ht_capa)
700 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
701 params->ht_capa,
702 &sta->sta.ht_cap);
703
704 if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
705 switch (params->plink_action) {
706 case PLINK_ACTION_OPEN:
707 mesh_plink_open(sta);
708 break;
709 case PLINK_ACTION_BLOCK:
710 mesh_plink_block(sta);
711 break;
712 }
713 }
714 }
715
716 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
717 u8 *mac, struct station_parameters *params)
718 {
719 struct ieee80211_local *local = wiphy_priv(wiphy);
720 struct sta_info *sta;
721 struct ieee80211_sub_if_data *sdata;
722 int err;
723 int layer2_update;
724
725 if (params->vlan) {
726 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
727
728 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
729 sdata->vif.type != NL80211_IFTYPE_AP)
730 return -EINVAL;
731 } else
732 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
733
734 if (compare_ether_addr(mac, dev->dev_addr) == 0)
735 return -EINVAL;
736
737 if (is_multicast_ether_addr(mac))
738 return -EINVAL;
739
740 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
741 if (!sta)
742 return -ENOMEM;
743
744 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
745
746 sta_apply_parameters(local, sta, params);
747
748 rate_control_rate_init(sta);
749
750 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
751 sdata->vif.type == NL80211_IFTYPE_AP;
752
753 rcu_read_lock();
754
755 err = sta_info_insert(sta);
756 if (err) {
757 rcu_read_unlock();
758 return err;
759 }
760
761 if (layer2_update)
762 ieee80211_send_layer2_update(sta);
763
764 rcu_read_unlock();
765
766 return 0;
767 }
768
769 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
770 u8 *mac)
771 {
772 struct ieee80211_local *local = wiphy_priv(wiphy);
773 struct ieee80211_sub_if_data *sdata;
774 struct sta_info *sta;
775
776 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
777
778 if (mac) {
779 rcu_read_lock();
780
781 /* XXX: get sta belonging to dev */
782 sta = sta_info_get(local, mac);
783 if (!sta) {
784 rcu_read_unlock();
785 return -ENOENT;
786 }
787
788 sta_info_unlink(&sta);
789 rcu_read_unlock();
790
791 sta_info_destroy(sta);
792 } else
793 sta_info_flush(local, sdata);
794
795 return 0;
796 }
797
798 static int ieee80211_change_station(struct wiphy *wiphy,
799 struct net_device *dev,
800 u8 *mac,
801 struct station_parameters *params)
802 {
803 struct ieee80211_local *local = wiphy_priv(wiphy);
804 struct sta_info *sta;
805 struct ieee80211_sub_if_data *vlansdata;
806
807 rcu_read_lock();
808
809 /* XXX: get sta belonging to dev */
810 sta = sta_info_get(local, mac);
811 if (!sta) {
812 rcu_read_unlock();
813 return -ENOENT;
814 }
815
816 if (params->vlan && params->vlan != sta->sdata->dev) {
817 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
818
819 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
820 vlansdata->vif.type != NL80211_IFTYPE_AP) {
821 rcu_read_unlock();
822 return -EINVAL;
823 }
824
825 if (params->vlan->ieee80211_ptr->use_4addr) {
826 if (vlansdata->u.vlan.sta)
827 return -EBUSY;
828
829 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
830 }
831
832 sta->sdata = vlansdata;
833 ieee80211_send_layer2_update(sta);
834 }
835
836 sta_apply_parameters(local, sta, params);
837
838 rcu_read_unlock();
839
840 return 0;
841 }
842
843 #ifdef CONFIG_MAC80211_MESH
844 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
845 u8 *dst, u8 *next_hop)
846 {
847 struct ieee80211_local *local = wiphy_priv(wiphy);
848 struct ieee80211_sub_if_data *sdata;
849 struct mesh_path *mpath;
850 struct sta_info *sta;
851 int err;
852
853 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
854
855 rcu_read_lock();
856 sta = sta_info_get(local, next_hop);
857 if (!sta) {
858 rcu_read_unlock();
859 return -ENOENT;
860 }
861
862 err = mesh_path_add(dst, sdata);
863 if (err) {
864 rcu_read_unlock();
865 return err;
866 }
867
868 mpath = mesh_path_lookup(dst, sdata);
869 if (!mpath) {
870 rcu_read_unlock();
871 return -ENXIO;
872 }
873 mesh_path_fix_nexthop(mpath, sta);
874
875 rcu_read_unlock();
876 return 0;
877 }
878
879 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
880 u8 *dst)
881 {
882 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
883
884 if (dst)
885 return mesh_path_del(dst, sdata);
886
887 mesh_path_flush(sdata);
888 return 0;
889 }
890
891 static int ieee80211_change_mpath(struct wiphy *wiphy,
892 struct net_device *dev,
893 u8 *dst, u8 *next_hop)
894 {
895 struct ieee80211_local *local = wiphy_priv(wiphy);
896 struct ieee80211_sub_if_data *sdata;
897 struct mesh_path *mpath;
898 struct sta_info *sta;
899
900 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
901
902 rcu_read_lock();
903
904 sta = sta_info_get(local, next_hop);
905 if (!sta) {
906 rcu_read_unlock();
907 return -ENOENT;
908 }
909
910 mpath = mesh_path_lookup(dst, sdata);
911 if (!mpath) {
912 rcu_read_unlock();
913 return -ENOENT;
914 }
915
916 mesh_path_fix_nexthop(mpath, sta);
917
918 rcu_read_unlock();
919 return 0;
920 }
921
922 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
923 struct mpath_info *pinfo)
924 {
925 if (mpath->next_hop)
926 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
927 else
928 memset(next_hop, 0, ETH_ALEN);
929
930 pinfo->generation = mesh_paths_generation;
931
932 pinfo->filled = MPATH_INFO_FRAME_QLEN |
933 MPATH_INFO_SN |
934 MPATH_INFO_METRIC |
935 MPATH_INFO_EXPTIME |
936 MPATH_INFO_DISCOVERY_TIMEOUT |
937 MPATH_INFO_DISCOVERY_RETRIES |
938 MPATH_INFO_FLAGS;
939
940 pinfo->frame_qlen = mpath->frame_queue.qlen;
941 pinfo->sn = mpath->sn;
942 pinfo->metric = mpath->metric;
943 if (time_before(jiffies, mpath->exp_time))
944 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
945 pinfo->discovery_timeout =
946 jiffies_to_msecs(mpath->discovery_timeout);
947 pinfo->discovery_retries = mpath->discovery_retries;
948 pinfo->flags = 0;
949 if (mpath->flags & MESH_PATH_ACTIVE)
950 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
951 if (mpath->flags & MESH_PATH_RESOLVING)
952 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
953 if (mpath->flags & MESH_PATH_SN_VALID)
954 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
955 if (mpath->flags & MESH_PATH_FIXED)
956 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
957 if (mpath->flags & MESH_PATH_RESOLVING)
958 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
959
960 pinfo->flags = mpath->flags;
961 }
962
963 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
964 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
965
966 {
967 struct ieee80211_sub_if_data *sdata;
968 struct mesh_path *mpath;
969
970 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
971
972 rcu_read_lock();
973 mpath = mesh_path_lookup(dst, sdata);
974 if (!mpath) {
975 rcu_read_unlock();
976 return -ENOENT;
977 }
978 memcpy(dst, mpath->dst, ETH_ALEN);
979 mpath_set_pinfo(mpath, next_hop, pinfo);
980 rcu_read_unlock();
981 return 0;
982 }
983
984 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
985 int idx, u8 *dst, u8 *next_hop,
986 struct mpath_info *pinfo)
987 {
988 struct ieee80211_sub_if_data *sdata;
989 struct mesh_path *mpath;
990
991 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
992
993 rcu_read_lock();
994 mpath = mesh_path_lookup_by_idx(idx, sdata);
995 if (!mpath) {
996 rcu_read_unlock();
997 return -ENOENT;
998 }
999 memcpy(dst, mpath->dst, ETH_ALEN);
1000 mpath_set_pinfo(mpath, next_hop, pinfo);
1001 rcu_read_unlock();
1002 return 0;
1003 }
1004
1005 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1006 struct net_device *dev,
1007 struct mesh_config *conf)
1008 {
1009 struct ieee80211_sub_if_data *sdata;
1010 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1011
1012 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1013 return 0;
1014 }
1015
1016 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1017 {
1018 return (mask >> (parm-1)) & 0x1;
1019 }
1020
1021 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1022 struct net_device *dev,
1023 const struct mesh_config *nconf, u32 mask)
1024 {
1025 struct mesh_config *conf;
1026 struct ieee80211_sub_if_data *sdata;
1027 struct ieee80211_if_mesh *ifmsh;
1028
1029 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1030 ifmsh = &sdata->u.mesh;
1031
1032 /* Set the config options which we are interested in setting */
1033 conf = &(sdata->u.mesh.mshcfg);
1034 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1035 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1036 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1037 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1038 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1039 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1040 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1041 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1042 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1043 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1044 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1045 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1046 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1047 conf->auto_open_plinks = nconf->auto_open_plinks;
1048 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1049 conf->dot11MeshHWMPmaxPREQretries =
1050 nconf->dot11MeshHWMPmaxPREQretries;
1051 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1052 conf->path_refresh_time = nconf->path_refresh_time;
1053 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1054 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1055 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1056 conf->dot11MeshHWMPactivePathTimeout =
1057 nconf->dot11MeshHWMPactivePathTimeout;
1058 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1059 conf->dot11MeshHWMPpreqMinInterval =
1060 nconf->dot11MeshHWMPpreqMinInterval;
1061 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1062 mask))
1063 conf->dot11MeshHWMPnetDiameterTraversalTime =
1064 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1065 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1066 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1067 ieee80211_mesh_root_setup(ifmsh);
1068 }
1069 return 0;
1070 }
1071
1072 #endif
1073
1074 static int ieee80211_change_bss(struct wiphy *wiphy,
1075 struct net_device *dev,
1076 struct bss_parameters *params)
1077 {
1078 struct ieee80211_sub_if_data *sdata;
1079 u32 changed = 0;
1080
1081 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1082
1083 if (params->use_cts_prot >= 0) {
1084 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1085 changed |= BSS_CHANGED_ERP_CTS_PROT;
1086 }
1087 if (params->use_short_preamble >= 0) {
1088 sdata->vif.bss_conf.use_short_preamble =
1089 params->use_short_preamble;
1090 changed |= BSS_CHANGED_ERP_PREAMBLE;
1091 }
1092 if (params->use_short_slot_time >= 0) {
1093 sdata->vif.bss_conf.use_short_slot =
1094 params->use_short_slot_time;
1095 changed |= BSS_CHANGED_ERP_SLOT;
1096 }
1097
1098 if (params->basic_rates) {
1099 int i, j;
1100 u32 rates = 0;
1101 struct ieee80211_local *local = wiphy_priv(wiphy);
1102 struct ieee80211_supported_band *sband =
1103 wiphy->bands[local->oper_channel->band];
1104
1105 for (i = 0; i < params->basic_rates_len; i++) {
1106 int rate = (params->basic_rates[i] & 0x7f) * 5;
1107 for (j = 0; j < sband->n_bitrates; j++) {
1108 if (sband->bitrates[j].bitrate == rate)
1109 rates |= BIT(j);
1110 }
1111 }
1112 sdata->vif.bss_conf.basic_rates = rates;
1113 changed |= BSS_CHANGED_BASIC_RATES;
1114 }
1115
1116 ieee80211_bss_info_change_notify(sdata, changed);
1117
1118 return 0;
1119 }
1120
1121 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1122 struct ieee80211_txq_params *params)
1123 {
1124 struct ieee80211_local *local = wiphy_priv(wiphy);
1125 struct ieee80211_tx_queue_params p;
1126
1127 if (!local->ops->conf_tx)
1128 return -EOPNOTSUPP;
1129
1130 memset(&p, 0, sizeof(p));
1131 p.aifs = params->aifs;
1132 p.cw_max = params->cwmax;
1133 p.cw_min = params->cwmin;
1134 p.txop = params->txop;
1135 if (drv_conf_tx(local, params->queue, &p)) {
1136 printk(KERN_DEBUG "%s: failed to set TX queue "
1137 "parameters for queue %d\n",
1138 wiphy_name(local->hw.wiphy), params->queue);
1139 return -EINVAL;
1140 }
1141
1142 return 0;
1143 }
1144
1145 static int ieee80211_set_channel(struct wiphy *wiphy,
1146 struct ieee80211_channel *chan,
1147 enum nl80211_channel_type channel_type)
1148 {
1149 struct ieee80211_local *local = wiphy_priv(wiphy);
1150
1151 local->oper_channel = chan;
1152 local->oper_channel_type = channel_type;
1153
1154 return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1155 }
1156
1157 #ifdef CONFIG_PM
1158 static int ieee80211_suspend(struct wiphy *wiphy)
1159 {
1160 return __ieee80211_suspend(wiphy_priv(wiphy));
1161 }
1162
1163 static int ieee80211_resume(struct wiphy *wiphy)
1164 {
1165 return __ieee80211_resume(wiphy_priv(wiphy));
1166 }
1167 #else
1168 #define ieee80211_suspend NULL
1169 #define ieee80211_resume NULL
1170 #endif
1171
1172 static int ieee80211_scan(struct wiphy *wiphy,
1173 struct net_device *dev,
1174 struct cfg80211_scan_request *req)
1175 {
1176 struct ieee80211_sub_if_data *sdata;
1177
1178 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1179
1180 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1181 sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1182 sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1183 (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1184 return -EOPNOTSUPP;
1185
1186 return ieee80211_request_scan(sdata, req);
1187 }
1188
1189 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1190 struct cfg80211_auth_request *req)
1191 {
1192 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1193 }
1194
1195 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1196 struct cfg80211_assoc_request *req)
1197 {
1198 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1199 }
1200
1201 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1202 struct cfg80211_deauth_request *req,
1203 void *cookie)
1204 {
1205 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1206 req, cookie);
1207 }
1208
1209 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1210 struct cfg80211_disassoc_request *req,
1211 void *cookie)
1212 {
1213 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1214 req, cookie);
1215 }
1216
1217 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1218 struct cfg80211_ibss_params *params)
1219 {
1220 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1221
1222 return ieee80211_ibss_join(sdata, params);
1223 }
1224
1225 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1226 {
1227 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1228
1229 return ieee80211_ibss_leave(sdata);
1230 }
1231
1232 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1233 {
1234 struct ieee80211_local *local = wiphy_priv(wiphy);
1235 int err;
1236
1237 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1238 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1239
1240 if (err)
1241 return err;
1242 }
1243
1244 if (changed & WIPHY_PARAM_RETRY_SHORT)
1245 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1246 if (changed & WIPHY_PARAM_RETRY_LONG)
1247 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1248 if (changed &
1249 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1250 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1251
1252 return 0;
1253 }
1254
1255 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1256 enum tx_power_setting type, int dbm)
1257 {
1258 struct ieee80211_local *local = wiphy_priv(wiphy);
1259 struct ieee80211_channel *chan = local->hw.conf.channel;
1260 u32 changes = 0;
1261
1262 switch (type) {
1263 case TX_POWER_AUTOMATIC:
1264 local->user_power_level = -1;
1265 break;
1266 case TX_POWER_LIMITED:
1267 if (dbm < 0)
1268 return -EINVAL;
1269 local->user_power_level = dbm;
1270 break;
1271 case TX_POWER_FIXED:
1272 if (dbm < 0)
1273 return -EINVAL;
1274 /* TODO: move to cfg80211 when it knows the channel */
1275 if (dbm > chan->max_power)
1276 return -EINVAL;
1277 local->user_power_level = dbm;
1278 break;
1279 }
1280
1281 ieee80211_hw_config(local, changes);
1282
1283 return 0;
1284 }
1285
1286 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1287 {
1288 struct ieee80211_local *local = wiphy_priv(wiphy);
1289
1290 *dbm = local->hw.conf.power_level;
1291
1292 return 0;
1293 }
1294
1295 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1296 u8 *addr)
1297 {
1298 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1299
1300 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1301
1302 return 0;
1303 }
1304
1305 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1306 {
1307 struct ieee80211_local *local = wiphy_priv(wiphy);
1308
1309 drv_rfkill_poll(local);
1310 }
1311
1312 #ifdef CONFIG_NL80211_TESTMODE
1313 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1314 {
1315 struct ieee80211_local *local = wiphy_priv(wiphy);
1316
1317 if (!local->ops->testmode_cmd)
1318 return -EOPNOTSUPP;
1319
1320 return local->ops->testmode_cmd(&local->hw, data, len);
1321 }
1322 #endif
1323
1324 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1325 bool enabled, int timeout)
1326 {
1327 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1328 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1329 struct ieee80211_conf *conf = &local->hw.conf;
1330
1331 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1332 return -EOPNOTSUPP;
1333
1334 if (enabled == sdata->u.mgd.powersave &&
1335 timeout == conf->dynamic_ps_timeout)
1336 return 0;
1337
1338 sdata->u.mgd.powersave = enabled;
1339 conf->dynamic_ps_timeout = timeout;
1340
1341 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1342 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1343
1344 ieee80211_recalc_ps(local, -1);
1345
1346 return 0;
1347 }
1348
1349 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1350 struct net_device *dev,
1351 const u8 *addr,
1352 const struct cfg80211_bitrate_mask *mask)
1353 {
1354 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1355 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1356 int i, err = -EINVAL;
1357 u32 target_rate;
1358 struct ieee80211_supported_band *sband;
1359
1360 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
1361
1362 /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
1363 * target_rate = X, rate->fixed = 1 means only rate X
1364 * target_rate = X, rate->fixed = 0 means all rates <= X */
1365 sdata->max_ratectrl_rateidx = -1;
1366 sdata->force_unicast_rateidx = -1;
1367
1368 if (mask->fixed)
1369 target_rate = mask->fixed / 100;
1370 else if (mask->maxrate)
1371 target_rate = mask->maxrate / 100;
1372 else
1373 return 0;
1374
1375 for (i=0; i< sband->n_bitrates; i++) {
1376 struct ieee80211_rate *brate = &sband->bitrates[i];
1377 int this_rate = brate->bitrate;
1378
1379 if (target_rate == this_rate) {
1380 sdata->max_ratectrl_rateidx = i;
1381 if (mask->fixed)
1382 sdata->force_unicast_rateidx = i;
1383 err = 0;
1384 break;
1385 }
1386 }
1387
1388 return err;
1389 }
1390
1391 struct cfg80211_ops mac80211_config_ops = {
1392 .add_virtual_intf = ieee80211_add_iface,
1393 .del_virtual_intf = ieee80211_del_iface,
1394 .change_virtual_intf = ieee80211_change_iface,
1395 .add_key = ieee80211_add_key,
1396 .del_key = ieee80211_del_key,
1397 .get_key = ieee80211_get_key,
1398 .set_default_key = ieee80211_config_default_key,
1399 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1400 .add_beacon = ieee80211_add_beacon,
1401 .set_beacon = ieee80211_set_beacon,
1402 .del_beacon = ieee80211_del_beacon,
1403 .add_station = ieee80211_add_station,
1404 .del_station = ieee80211_del_station,
1405 .change_station = ieee80211_change_station,
1406 .get_station = ieee80211_get_station,
1407 .dump_station = ieee80211_dump_station,
1408 #ifdef CONFIG_MAC80211_MESH
1409 .add_mpath = ieee80211_add_mpath,
1410 .del_mpath = ieee80211_del_mpath,
1411 .change_mpath = ieee80211_change_mpath,
1412 .get_mpath = ieee80211_get_mpath,
1413 .dump_mpath = ieee80211_dump_mpath,
1414 .set_mesh_params = ieee80211_set_mesh_params,
1415 .get_mesh_params = ieee80211_get_mesh_params,
1416 #endif
1417 .change_bss = ieee80211_change_bss,
1418 .set_txq_params = ieee80211_set_txq_params,
1419 .set_channel = ieee80211_set_channel,
1420 .suspend = ieee80211_suspend,
1421 .resume = ieee80211_resume,
1422 .scan = ieee80211_scan,
1423 .auth = ieee80211_auth,
1424 .assoc = ieee80211_assoc,
1425 .deauth = ieee80211_deauth,
1426 .disassoc = ieee80211_disassoc,
1427 .join_ibss = ieee80211_join_ibss,
1428 .leave_ibss = ieee80211_leave_ibss,
1429 .set_wiphy_params = ieee80211_set_wiphy_params,
1430 .set_tx_power = ieee80211_set_tx_power,
1431 .get_tx_power = ieee80211_get_tx_power,
1432 .set_wds_peer = ieee80211_set_wds_peer,
1433 .rfkill_poll = ieee80211_rfkill_poll,
1434 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1435 .set_power_mgmt = ieee80211_set_power_mgmt,
1436 .set_bitrate_mask = ieee80211_set_bitrate_mask,
1437 };
Linux kernel - Deliverables
This page took 0.073344 seconds and 4 git commands to generate.