xref: /openbmc/linux/net/mac80211/cfg.c (revision b6dcefde) 
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 	    (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
359 		sinfo->filled |= STATION_INFO_SIGNAL;
360 		sinfo->signal = (s8)sta->last_signal;
361 	}
362 
363 	sinfo->txrate.flags = 0;
364 	if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
365 		sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
366 	if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
367 		sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
368 	if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
369 		sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
370 
371 	if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
372 		struct ieee80211_supported_band *sband;
373 		sband = sta->local->hw.wiphy->bands[
374 				sta->local->hw.conf.channel->band];
375 		sinfo->txrate.legacy =
376 			sband->bitrates[sta->last_tx_rate.idx].bitrate;
377 	} else
378 		sinfo->txrate.mcs = sta->last_tx_rate.idx;
379 
380 	if (ieee80211_vif_is_mesh(&sdata->vif)) {
381 #ifdef CONFIG_MAC80211_MESH
382 		sinfo->filled |= STATION_INFO_LLID |
383 				 STATION_INFO_PLID |
384 				 STATION_INFO_PLINK_STATE;
385 
386 		sinfo->llid = le16_to_cpu(sta->llid);
387 		sinfo->plid = le16_to_cpu(sta->plid);
388 		sinfo->plink_state = sta->plink_state;
389 #endif
390 	}
391 }
392 
393 
394 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
395 				 int idx, u8 *mac, struct station_info *sinfo)
396 {
397 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
398 	struct sta_info *sta;
399 	int ret = -ENOENT;
400 
401 	rcu_read_lock();
402 
403 	sta = sta_info_get_by_idx(sdata, idx);
404 	if (sta) {
405 		ret = 0;
406 		memcpy(mac, sta->sta.addr, ETH_ALEN);
407 		sta_set_sinfo(sta, sinfo);
408 	}
409 
410 	rcu_read_unlock();
411 
412 	return ret;
413 }
414 
415 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
416 				 u8 *mac, struct station_info *sinfo)
417 {
418 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
419 	struct sta_info *sta;
420 	int ret = -ENOENT;
421 
422 	rcu_read_lock();
423 
424 	/* XXX: verify sta->dev == dev */
425 
426 	sta = sta_info_get(local, mac);
427 	if (sta) {
428 		ret = 0;
429 		sta_set_sinfo(sta, sinfo);
430 	}
431 
432 	rcu_read_unlock();
433 
434 	return ret;
435 }
436 
437 /*
438  * This handles both adding a beacon and setting new beacon info
439  */
440 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
441 				   struct beacon_parameters *params)
442 {
443 	struct beacon_data *new, *old;
444 	int new_head_len, new_tail_len;
445 	int size;
446 	int err = -EINVAL;
447 
448 	old = sdata->u.ap.beacon;
449 
450 	/* head must not be zero-length */
451 	if (params->head && !params->head_len)
452 		return -EINVAL;
453 
454 	/*
455 	 * This is a kludge. beacon interval should really be part
456 	 * of the beacon information.
457 	 */
458 	if (params->interval &&
459 	    (sdata->vif.bss_conf.beacon_int != params->interval)) {
460 		sdata->vif.bss_conf.beacon_int = params->interval;
461 		ieee80211_bss_info_change_notify(sdata,
462 						 BSS_CHANGED_BEACON_INT);
463 	}
464 
465 	/* Need to have a beacon head if we don't have one yet */
466 	if (!params->head && !old)
467 		return err;
468 
469 	/* sorry, no way to start beaconing without dtim period */
470 	if (!params->dtim_period && !old)
471 		return err;
472 
473 	/* new or old head? */
474 	if (params->head)
475 		new_head_len = params->head_len;
476 	else
477 		new_head_len = old->head_len;
478 
479 	/* new or old tail? */
480 	if (params->tail || !old)
481 		/* params->tail_len will be zero for !params->tail */
482 		new_tail_len = params->tail_len;
483 	else
484 		new_tail_len = old->tail_len;
485 
486 	size = sizeof(*new) + new_head_len + new_tail_len;
487 
488 	new = kzalloc(size, GFP_KERNEL);
489 	if (!new)
490 		return -ENOMEM;
491 
492 	/* start filling the new info now */
493 
494 	/* new or old dtim period? */
495 	if (params->dtim_period)
496 		new->dtim_period = params->dtim_period;
497 	else
498 		new->dtim_period = old->dtim_period;
499 
500 	/*
501 	 * pointers go into the block we allocated,
502 	 * memory is | beacon_data | head | tail |
503 	 */
504 	new->head = ((u8 *) new) + sizeof(*new);
505 	new->tail = new->head + new_head_len;
506 	new->head_len = new_head_len;
507 	new->tail_len = new_tail_len;
508 
509 	/* copy in head */
510 	if (params->head)
511 		memcpy(new->head, params->head, new_head_len);
512 	else
513 		memcpy(new->head, old->head, new_head_len);
514 
515 	/* copy in optional tail */
516 	if (params->tail)
517 		memcpy(new->tail, params->tail, new_tail_len);
518 	else
519 		if (old)
520 			memcpy(new->tail, old->tail, new_tail_len);
521 
522 	rcu_assign_pointer(sdata->u.ap.beacon, new);
523 
524 	synchronize_rcu();
525 
526 	kfree(old);
527 
528 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
529 						BSS_CHANGED_BEACON);
530 	return 0;
531 }
532 
533 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
534 				struct beacon_parameters *params)
535 {
536 	struct ieee80211_sub_if_data *sdata;
537 	struct beacon_data *old;
538 
539 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
540 
541 	old = sdata->u.ap.beacon;
542 
543 	if (old)
544 		return -EALREADY;
545 
546 	return ieee80211_config_beacon(sdata, params);
547 }
548 
549 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
550 				struct beacon_parameters *params)
551 {
552 	struct ieee80211_sub_if_data *sdata;
553 	struct beacon_data *old;
554 
555 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
556 
557 	old = sdata->u.ap.beacon;
558 
559 	if (!old)
560 		return -ENOENT;
561 
562 	return ieee80211_config_beacon(sdata, params);
563 }
564 
565 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
566 {
567 	struct ieee80211_sub_if_data *sdata;
568 	struct beacon_data *old;
569 
570 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
571 
572 	old = sdata->u.ap.beacon;
573 
574 	if (!old)
575 		return -ENOENT;
576 
577 	rcu_assign_pointer(sdata->u.ap.beacon, NULL);
578 	synchronize_rcu();
579 	kfree(old);
580 
581 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
582 	return 0;
583 }
584 
585 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
586 struct iapp_layer2_update {
587 	u8 da[ETH_ALEN];	/* broadcast */
588 	u8 sa[ETH_ALEN];	/* STA addr */
589 	__be16 len;		/* 6 */
590 	u8 dsap;		/* 0 */
591 	u8 ssap;		/* 0 */
592 	u8 control;
593 	u8 xid_info[3];
594 } __attribute__ ((packed));
595 
596 static void ieee80211_send_layer2_update(struct sta_info *sta)
597 {
598 	struct iapp_layer2_update *msg;
599 	struct sk_buff *skb;
600 
601 	/* Send Level 2 Update Frame to update forwarding tables in layer 2
602 	 * bridge devices */
603 
604 	skb = dev_alloc_skb(sizeof(*msg));
605 	if (!skb)
606 		return;
607 	msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
608 
609 	/* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
610 	 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
611 
612 	memset(msg->da, 0xff, ETH_ALEN);
613 	memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
614 	msg->len = htons(6);
615 	msg->dsap = 0;
616 	msg->ssap = 0x01;	/* NULL LSAP, CR Bit: Response */
617 	msg->control = 0xaf;	/* XID response lsb.1111F101.
618 				 * F=0 (no poll command; unsolicited frame) */
619 	msg->xid_info[0] = 0x81;	/* XID format identifier */
620 	msg->xid_info[1] = 1;	/* LLC types/classes: Type 1 LLC */
621 	msg->xid_info[2] = 0;	/* XID sender's receive window size (RW) */
622 
623 	skb->dev = sta->sdata->dev;
624 	skb->protocol = eth_type_trans(skb, sta->sdata->dev);
625 	memset(skb->cb, 0, sizeof(skb->cb));
626 	netif_rx(skb);
627 }
628 
629 static void sta_apply_parameters(struct ieee80211_local *local,
630 				 struct sta_info *sta,
631 				 struct station_parameters *params)
632 {
633 	u32 rates;
634 	int i, j;
635 	struct ieee80211_supported_band *sband;
636 	struct ieee80211_sub_if_data *sdata = sta->sdata;
637 	u32 mask, set;
638 
639 	sband = local->hw.wiphy->bands[local->oper_channel->band];
640 
641 	spin_lock_bh(&sta->lock);
642 	mask = params->sta_flags_mask;
643 	set = params->sta_flags_set;
644 
645 	if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
646 		sta->flags &= ~WLAN_STA_AUTHORIZED;
647 		if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
648 			sta->flags |= WLAN_STA_AUTHORIZED;
649 	}
650 
651 	if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
652 		sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
653 		if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
654 			sta->flags |= WLAN_STA_SHORT_PREAMBLE;
655 	}
656 
657 	if (mask & BIT(NL80211_STA_FLAG_WME)) {
658 		sta->flags &= ~WLAN_STA_WME;
659 		if (set & BIT(NL80211_STA_FLAG_WME))
660 			sta->flags |= WLAN_STA_WME;
661 	}
662 
663 	if (mask & BIT(NL80211_STA_FLAG_MFP)) {
664 		sta->flags &= ~WLAN_STA_MFP;
665 		if (set & BIT(NL80211_STA_FLAG_MFP))
666 			sta->flags |= WLAN_STA_MFP;
667 	}
668 	spin_unlock_bh(&sta->lock);
669 
670 	/*
671 	 * cfg80211 validates this (1-2007) and allows setting the AID
672 	 * only when creating a new station entry
673 	 */
674 	if (params->aid)
675 		sta->sta.aid = params->aid;
676 
677 	/*
678 	 * FIXME: updating the following information is racy when this
679 	 *	  function is called from ieee80211_change_station().
680 	 *	  However, all this information should be static so
681 	 *	  maybe we should just reject attemps to change it.
682 	 */
683 
684 	if (params->listen_interval >= 0)
685 		sta->listen_interval = params->listen_interval;
686 
687 	if (params->supported_rates) {
688 		rates = 0;
689 
690 		for (i = 0; i < params->supported_rates_len; i++) {
691 			int rate = (params->supported_rates[i] & 0x7f) * 5;
692 			for (j = 0; j < sband->n_bitrates; j++) {
693 				if (sband->bitrates[j].bitrate == rate)
694 					rates |= BIT(j);
695 			}
696 		}
697 		sta->sta.supp_rates[local->oper_channel->band] = rates;
698 	}
699 
700 	if (params->ht_capa)
701 		ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
702 						  params->ht_capa,
703 						  &sta->sta.ht_cap);
704 
705 	if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
706 		switch (params->plink_action) {
707 		case PLINK_ACTION_OPEN:
708 			mesh_plink_open(sta);
709 			break;
710 		case PLINK_ACTION_BLOCK:
711 			mesh_plink_block(sta);
712 			break;
713 		}
714 	}
715 }
716 
717 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
718 				 u8 *mac, struct station_parameters *params)
719 {
720 	struct ieee80211_local *local = wiphy_priv(wiphy);
721 	struct sta_info *sta;
722 	struct ieee80211_sub_if_data *sdata;
723 	int err;
724 	int layer2_update;
725 
726 	if (params->vlan) {
727 		sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
728 
729 		if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
730 		    sdata->vif.type != NL80211_IFTYPE_AP)
731 			return -EINVAL;
732 	} else
733 		sdata = IEEE80211_DEV_TO_SUB_IF(dev);
734 
735 	if (compare_ether_addr(mac, dev->dev_addr) == 0)
736 		return -EINVAL;
737 
738 	if (is_multicast_ether_addr(mac))
739 		return -EINVAL;
740 
741 	sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
742 	if (!sta)
743 		return -ENOMEM;
744 
745 	sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
746 
747 	sta_apply_parameters(local, sta, params);
748 
749 	rate_control_rate_init(sta);
750 
751 	layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
752 		sdata->vif.type == NL80211_IFTYPE_AP;
753 
754 	rcu_read_lock();
755 
756 	err = sta_info_insert(sta);
757 	if (err) {
758 		rcu_read_unlock();
759 		return err;
760 	}
761 
762 	if (layer2_update)
763 		ieee80211_send_layer2_update(sta);
764 
765 	rcu_read_unlock();
766 
767 	return 0;
768 }
769 
770 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
771 				 u8 *mac)
772 {
773 	struct ieee80211_local *local = wiphy_priv(wiphy);
774 	struct ieee80211_sub_if_data *sdata;
775 	struct sta_info *sta;
776 
777 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
778 
779 	if (mac) {
780 		rcu_read_lock();
781 
782 		/* XXX: get sta belonging to dev */
783 		sta = sta_info_get(local, mac);
784 		if (!sta) {
785 			rcu_read_unlock();
786 			return -ENOENT;
787 		}
788 
789 		sta_info_unlink(&sta);
790 		rcu_read_unlock();
791 
792 		sta_info_destroy(sta);
793 	} else
794 		sta_info_flush(local, sdata);
795 
796 	return 0;
797 }
798 
799 static int ieee80211_change_station(struct wiphy *wiphy,
800 				    struct net_device *dev,
801 				    u8 *mac,
802 				    struct station_parameters *params)
803 {
804 	struct ieee80211_local *local = wiphy_priv(wiphy);
805 	struct sta_info *sta;
806 	struct ieee80211_sub_if_data *vlansdata;
807 
808 	rcu_read_lock();
809 
810 	/* XXX: get sta belonging to dev */
811 	sta = sta_info_get(local, mac);
812 	if (!sta) {
813 		rcu_read_unlock();
814 		return -ENOENT;
815 	}
816 
817 	if (params->vlan && params->vlan != sta->sdata->dev) {
818 		vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
819 
820 		if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
821 		    vlansdata->vif.type != NL80211_IFTYPE_AP) {
822 			rcu_read_unlock();
823 			return -EINVAL;
824 		}
825 
826 		if (params->vlan->ieee80211_ptr->use_4addr) {
827 			if (vlansdata->u.vlan.sta) {
828 				rcu_read_unlock();
829 				return -EBUSY;
830 			}
831 
832 			rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
833 		}
834 
835 		sta->sdata = vlansdata;
836 		ieee80211_send_layer2_update(sta);
837 	}
838 
839 	sta_apply_parameters(local, sta, params);
840 
841 	rcu_read_unlock();
842 
843 	return 0;
844 }
845 
846 #ifdef CONFIG_MAC80211_MESH
847 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
848 				 u8 *dst, u8 *next_hop)
849 {
850 	struct ieee80211_local *local = wiphy_priv(wiphy);
851 	struct ieee80211_sub_if_data *sdata;
852 	struct mesh_path *mpath;
853 	struct sta_info *sta;
854 	int err;
855 
856 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
857 
858 	rcu_read_lock();
859 	sta = sta_info_get(local, next_hop);
860 	if (!sta) {
861 		rcu_read_unlock();
862 		return -ENOENT;
863 	}
864 
865 	err = mesh_path_add(dst, sdata);
866 	if (err) {
867 		rcu_read_unlock();
868 		return err;
869 	}
870 
871 	mpath = mesh_path_lookup(dst, sdata);
872 	if (!mpath) {
873 		rcu_read_unlock();
874 		return -ENXIO;
875 	}
876 	mesh_path_fix_nexthop(mpath, sta);
877 
878 	rcu_read_unlock();
879 	return 0;
880 }
881 
882 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
883 				 u8 *dst)
884 {
885 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
886 
887 	if (dst)
888 		return mesh_path_del(dst, sdata);
889 
890 	mesh_path_flush(sdata);
891 	return 0;
892 }
893 
894 static int ieee80211_change_mpath(struct wiphy *wiphy,
895 				    struct net_device *dev,
896 				    u8 *dst, u8 *next_hop)
897 {
898 	struct ieee80211_local *local = wiphy_priv(wiphy);
899 	struct ieee80211_sub_if_data *sdata;
900 	struct mesh_path *mpath;
901 	struct sta_info *sta;
902 
903 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
904 
905 	rcu_read_lock();
906 
907 	sta = sta_info_get(local, next_hop);
908 	if (!sta) {
909 		rcu_read_unlock();
910 		return -ENOENT;
911 	}
912 
913 	mpath = mesh_path_lookup(dst, sdata);
914 	if (!mpath) {
915 		rcu_read_unlock();
916 		return -ENOENT;
917 	}
918 
919 	mesh_path_fix_nexthop(mpath, sta);
920 
921 	rcu_read_unlock();
922 	return 0;
923 }
924 
925 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
926 			    struct mpath_info *pinfo)
927 {
928 	if (mpath->next_hop)
929 		memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
930 	else
931 		memset(next_hop, 0, ETH_ALEN);
932 
933 	pinfo->generation = mesh_paths_generation;
934 
935 	pinfo->filled = MPATH_INFO_FRAME_QLEN |
936 			MPATH_INFO_SN |
937 			MPATH_INFO_METRIC |
938 			MPATH_INFO_EXPTIME |
939 			MPATH_INFO_DISCOVERY_TIMEOUT |
940 			MPATH_INFO_DISCOVERY_RETRIES |
941 			MPATH_INFO_FLAGS;
942 
943 	pinfo->frame_qlen = mpath->frame_queue.qlen;
944 	pinfo->sn = mpath->sn;
945 	pinfo->metric = mpath->metric;
946 	if (time_before(jiffies, mpath->exp_time))
947 		pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
948 	pinfo->discovery_timeout =
949 			jiffies_to_msecs(mpath->discovery_timeout);
950 	pinfo->discovery_retries = mpath->discovery_retries;
951 	pinfo->flags = 0;
952 	if (mpath->flags & MESH_PATH_ACTIVE)
953 		pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
954 	if (mpath->flags & MESH_PATH_RESOLVING)
955 		pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
956 	if (mpath->flags & MESH_PATH_SN_VALID)
957 		pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
958 	if (mpath->flags & MESH_PATH_FIXED)
959 		pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
960 	if (mpath->flags & MESH_PATH_RESOLVING)
961 		pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
962 
963 	pinfo->flags = mpath->flags;
964 }
965 
966 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
967 			       u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
968 
969 {
970 	struct ieee80211_sub_if_data *sdata;
971 	struct mesh_path *mpath;
972 
973 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
974 
975 	rcu_read_lock();
976 	mpath = mesh_path_lookup(dst, sdata);
977 	if (!mpath) {
978 		rcu_read_unlock();
979 		return -ENOENT;
980 	}
981 	memcpy(dst, mpath->dst, ETH_ALEN);
982 	mpath_set_pinfo(mpath, next_hop, pinfo);
983 	rcu_read_unlock();
984 	return 0;
985 }
986 
987 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
988 				 int idx, u8 *dst, u8 *next_hop,
989 				 struct mpath_info *pinfo)
990 {
991 	struct ieee80211_sub_if_data *sdata;
992 	struct mesh_path *mpath;
993 
994 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
995 
996 	rcu_read_lock();
997 	mpath = mesh_path_lookup_by_idx(idx, sdata);
998 	if (!mpath) {
999 		rcu_read_unlock();
1000 		return -ENOENT;
1001 	}
1002 	memcpy(dst, mpath->dst, ETH_ALEN);
1003 	mpath_set_pinfo(mpath, next_hop, pinfo);
1004 	rcu_read_unlock();
1005 	return 0;
1006 }
1007 
1008 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
1009 				struct net_device *dev,
1010 				struct mesh_config *conf)
1011 {
1012 	struct ieee80211_sub_if_data *sdata;
1013 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1014 
1015 	memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1016 	return 0;
1017 }
1018 
1019 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1020 {
1021 	return (mask >> (parm-1)) & 0x1;
1022 }
1023 
1024 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
1025 				struct net_device *dev,
1026 				const struct mesh_config *nconf, u32 mask)
1027 {
1028 	struct mesh_config *conf;
1029 	struct ieee80211_sub_if_data *sdata;
1030 	struct ieee80211_if_mesh *ifmsh;
1031 
1032 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1033 	ifmsh = &sdata->u.mesh;
1034 
1035 	/* Set the config options which we are interested in setting */
1036 	conf = &(sdata->u.mesh.mshcfg);
1037 	if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1038 		conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1039 	if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1040 		conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1041 	if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1042 		conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1043 	if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1044 		conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1045 	if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1046 		conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1047 	if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1048 		conf->dot11MeshTTL = nconf->dot11MeshTTL;
1049 	if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1050 		conf->auto_open_plinks = nconf->auto_open_plinks;
1051 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1052 		conf->dot11MeshHWMPmaxPREQretries =
1053 			nconf->dot11MeshHWMPmaxPREQretries;
1054 	if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1055 		conf->path_refresh_time = nconf->path_refresh_time;
1056 	if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1057 		conf->min_discovery_timeout = nconf->min_discovery_timeout;
1058 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1059 		conf->dot11MeshHWMPactivePathTimeout =
1060 			nconf->dot11MeshHWMPactivePathTimeout;
1061 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1062 		conf->dot11MeshHWMPpreqMinInterval =
1063 			nconf->dot11MeshHWMPpreqMinInterval;
1064 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1065 			   mask))
1066 		conf->dot11MeshHWMPnetDiameterTraversalTime =
1067 			nconf->dot11MeshHWMPnetDiameterTraversalTime;
1068 	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1069 		conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1070 		ieee80211_mesh_root_setup(ifmsh);
1071 	}
1072 	return 0;
1073 }
1074 
1075 #endif
1076 
1077 static int ieee80211_change_bss(struct wiphy *wiphy,
1078 				struct net_device *dev,
1079 				struct bss_parameters *params)
1080 {
1081 	struct ieee80211_sub_if_data *sdata;
1082 	u32 changed = 0;
1083 
1084 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1085 
1086 	if (params->use_cts_prot >= 0) {
1087 		sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1088 		changed |= BSS_CHANGED_ERP_CTS_PROT;
1089 	}
1090 	if (params->use_short_preamble >= 0) {
1091 		sdata->vif.bss_conf.use_short_preamble =
1092 			params->use_short_preamble;
1093 		changed |= BSS_CHANGED_ERP_PREAMBLE;
1094 	}
1095 	if (params->use_short_slot_time >= 0) {
1096 		sdata->vif.bss_conf.use_short_slot =
1097 			params->use_short_slot_time;
1098 		changed |= BSS_CHANGED_ERP_SLOT;
1099 	}
1100 
1101 	if (params->basic_rates) {
1102 		int i, j;
1103 		u32 rates = 0;
1104 		struct ieee80211_local *local = wiphy_priv(wiphy);
1105 		struct ieee80211_supported_band *sband =
1106 			wiphy->bands[local->oper_channel->band];
1107 
1108 		for (i = 0; i < params->basic_rates_len; i++) {
1109 			int rate = (params->basic_rates[i] & 0x7f) * 5;
1110 			for (j = 0; j < sband->n_bitrates; j++) {
1111 				if (sband->bitrates[j].bitrate == rate)
1112 					rates |= BIT(j);
1113 			}
1114 		}
1115 		sdata->vif.bss_conf.basic_rates = rates;
1116 		changed |= BSS_CHANGED_BASIC_RATES;
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 	if (drv_conf_tx(local, params->queue, &p)) {
1139 		printk(KERN_DEBUG "%s: failed to set TX queue "
1140 		       "parameters for queue %d\n",
1141 		       wiphy_name(local->hw.wiphy), params->queue);
1142 		return -EINVAL;
1143 	}
1144 
1145 	return 0;
1146 }
1147 
1148 static int ieee80211_set_channel(struct wiphy *wiphy,
1149 				 struct ieee80211_channel *chan,
1150 				 enum nl80211_channel_type channel_type)
1151 {
1152 	struct ieee80211_local *local = wiphy_priv(wiphy);
1153 
1154 	local->oper_channel = chan;
1155 	local->oper_channel_type = channel_type;
1156 
1157 	return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1158 }
1159 
1160 #ifdef CONFIG_PM
1161 static int ieee80211_suspend(struct wiphy *wiphy)
1162 {
1163 	return __ieee80211_suspend(wiphy_priv(wiphy));
1164 }
1165 
1166 static int ieee80211_resume(struct wiphy *wiphy)
1167 {
1168 	return __ieee80211_resume(wiphy_priv(wiphy));
1169 }
1170 #else
1171 #define ieee80211_suspend NULL
1172 #define ieee80211_resume NULL
1173 #endif
1174 
1175 static int ieee80211_scan(struct wiphy *wiphy,
1176 			  struct net_device *dev,
1177 			  struct cfg80211_scan_request *req)
1178 {
1179 	struct ieee80211_sub_if_data *sdata;
1180 
1181 	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1182 
1183 	if (sdata->vif.type != NL80211_IFTYPE_STATION &&
1184 	    sdata->vif.type != NL80211_IFTYPE_ADHOC &&
1185 	    sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
1186 	    (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon))
1187 		return -EOPNOTSUPP;
1188 
1189 	return ieee80211_request_scan(sdata, req);
1190 }
1191 
1192 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1193 			  struct cfg80211_auth_request *req)
1194 {
1195 	return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1196 }
1197 
1198 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1199 			   struct cfg80211_assoc_request *req)
1200 {
1201 	return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1202 }
1203 
1204 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1205 			    struct cfg80211_deauth_request *req,
1206 			    void *cookie)
1207 {
1208 	return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1209 				    req, cookie);
1210 }
1211 
1212 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1213 			      struct cfg80211_disassoc_request *req,
1214 			      void *cookie)
1215 {
1216 	return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1217 				      req, cookie);
1218 }
1219 
1220 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1221 			       struct cfg80211_ibss_params *params)
1222 {
1223 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1224 
1225 	return ieee80211_ibss_join(sdata, params);
1226 }
1227 
1228 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1229 {
1230 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1231 
1232 	return ieee80211_ibss_leave(sdata);
1233 }
1234 
1235 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1236 {
1237 	struct ieee80211_local *local = wiphy_priv(wiphy);
1238 	int err;
1239 
1240 	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1241 		err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1242 
1243 		if (err)
1244 			return err;
1245 	}
1246 
1247 	if (changed & WIPHY_PARAM_RETRY_SHORT)
1248 		local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1249 	if (changed & WIPHY_PARAM_RETRY_LONG)
1250 		local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1251 	if (changed &
1252 	    (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1253 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1254 
1255 	return 0;
1256 }
1257 
1258 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1259 				  enum tx_power_setting type, int dbm)
1260 {
1261 	struct ieee80211_local *local = wiphy_priv(wiphy);
1262 	struct ieee80211_channel *chan = local->hw.conf.channel;
1263 	u32 changes = 0;
1264 
1265 	switch (type) {
1266 	case TX_POWER_AUTOMATIC:
1267 		local->user_power_level = -1;
1268 		break;
1269 	case TX_POWER_LIMITED:
1270 		if (dbm < 0)
1271 			return -EINVAL;
1272 		local->user_power_level = dbm;
1273 		break;
1274 	case TX_POWER_FIXED:
1275 		if (dbm < 0)
1276 			return -EINVAL;
1277 		/* TODO: move to cfg80211 when it knows the channel */
1278 		if (dbm > chan->max_power)
1279 			return -EINVAL;
1280 		local->user_power_level = dbm;
1281 		break;
1282 	}
1283 
1284 	ieee80211_hw_config(local, changes);
1285 
1286 	return 0;
1287 }
1288 
1289 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1290 {
1291 	struct ieee80211_local *local = wiphy_priv(wiphy);
1292 
1293 	*dbm = local->hw.conf.power_level;
1294 
1295 	return 0;
1296 }
1297 
1298 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1299 				  u8 *addr)
1300 {
1301 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1302 
1303 	memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1304 
1305 	return 0;
1306 }
1307 
1308 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1309 {
1310 	struct ieee80211_local *local = wiphy_priv(wiphy);
1311 
1312 	drv_rfkill_poll(local);
1313 }
1314 
1315 #ifdef CONFIG_NL80211_TESTMODE
1316 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1317 {
1318 	struct ieee80211_local *local = wiphy_priv(wiphy);
1319 
1320 	if (!local->ops->testmode_cmd)
1321 		return -EOPNOTSUPP;
1322 
1323 	return local->ops->testmode_cmd(&local->hw, data, len);
1324 }
1325 #endif
1326 
1327 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1328 				    bool enabled, int timeout)
1329 {
1330 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1331 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1332 	struct ieee80211_conf *conf = &local->hw.conf;
1333 
1334 	if (sdata->vif.type != NL80211_IFTYPE_STATION)
1335 		return -EOPNOTSUPP;
1336 
1337 	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1338 		return -EOPNOTSUPP;
1339 
1340 	if (enabled == sdata->u.mgd.powersave &&
1341 	    timeout == conf->dynamic_ps_timeout)
1342 		return 0;
1343 
1344 	sdata->u.mgd.powersave = enabled;
1345 	conf->dynamic_ps_timeout = timeout;
1346 
1347 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1348 		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1349 
1350 	ieee80211_recalc_ps(local, -1);
1351 
1352 	return 0;
1353 }
1354 
1355 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1356 				      struct net_device *dev,
1357 				      const u8 *addr,
1358 				      const struct cfg80211_bitrate_mask *mask)
1359 {
1360 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1361 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1362 	int i, err = -EINVAL;
1363 	u32 target_rate;
1364 	struct ieee80211_supported_band *sband;
1365 
1366 	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
1367 
1368 	/* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
1369 	 * target_rate = X, rate->fixed = 1 means only rate X
1370 	 * target_rate = X, rate->fixed = 0 means all rates <= X */
1371 	sdata->max_ratectrl_rateidx = -1;
1372 	sdata->force_unicast_rateidx = -1;
1373 
1374 	if (mask->fixed)
1375 		target_rate = mask->fixed / 100;
1376 	else if (mask->maxrate)
1377 		target_rate = mask->maxrate / 100;
1378 	else
1379 		return 0;
1380 
1381 	for (i=0; i< sband->n_bitrates; i++) {
1382 		struct ieee80211_rate *brate = &sband->bitrates[i];
1383 		int this_rate = brate->bitrate;
1384 
1385 		if (target_rate == this_rate) {
1386 			sdata->max_ratectrl_rateidx = i;
1387 			if (mask->fixed)
1388 				sdata->force_unicast_rateidx = i;
1389 			err = 0;
1390 			break;
1391 		}
1392 	}
1393 
1394 	return err;
1395 }
1396 
1397 struct cfg80211_ops mac80211_config_ops = {
1398 	.add_virtual_intf = ieee80211_add_iface,
1399 	.del_virtual_intf = ieee80211_del_iface,
1400 	.change_virtual_intf = ieee80211_change_iface,
1401 	.add_key = ieee80211_add_key,
1402 	.del_key = ieee80211_del_key,
1403 	.get_key = ieee80211_get_key,
1404 	.set_default_key = ieee80211_config_default_key,
1405 	.set_default_mgmt_key = ieee80211_config_default_mgmt_key,
1406 	.add_beacon = ieee80211_add_beacon,
1407 	.set_beacon = ieee80211_set_beacon,
1408 	.del_beacon = ieee80211_del_beacon,
1409 	.add_station = ieee80211_add_station,
1410 	.del_station = ieee80211_del_station,
1411 	.change_station = ieee80211_change_station,
1412 	.get_station = ieee80211_get_station,
1413 	.dump_station = ieee80211_dump_station,
1414 #ifdef CONFIG_MAC80211_MESH
1415 	.add_mpath = ieee80211_add_mpath,
1416 	.del_mpath = ieee80211_del_mpath,
1417 	.change_mpath = ieee80211_change_mpath,
1418 	.get_mpath = ieee80211_get_mpath,
1419 	.dump_mpath = ieee80211_dump_mpath,
1420 	.set_mesh_params = ieee80211_set_mesh_params,
1421 	.get_mesh_params = ieee80211_get_mesh_params,
1422 #endif
1423 	.change_bss = ieee80211_change_bss,
1424 	.set_txq_params = ieee80211_set_txq_params,
1425 	.set_channel = ieee80211_set_channel,
1426 	.suspend = ieee80211_suspend,
1427 	.resume = ieee80211_resume,
1428 	.scan = ieee80211_scan,
1429 	.auth = ieee80211_auth,
1430 	.assoc = ieee80211_assoc,
1431 	.deauth = ieee80211_deauth,
1432 	.disassoc = ieee80211_disassoc,
1433 	.join_ibss = ieee80211_join_ibss,
1434 	.leave_ibss = ieee80211_leave_ibss,
1435 	.set_wiphy_params = ieee80211_set_wiphy_params,
1436 	.set_tx_power = ieee80211_set_tx_power,
1437 	.get_tx_power = ieee80211_get_tx_power,
1438 	.set_wds_peer = ieee80211_set_wds_peer,
1439 	.rfkill_poll = ieee80211_rfkill_poll,
1440 	CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
1441 	.set_power_mgmt = ieee80211_set_power_mgmt,
1442 	.set_bitrate_mask = ieee80211_set_bitrate_mask,
1443 };
1444