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cfg80211/mac80211: allow per-station GTKs
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / mac80211 / cfg.c
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
9 #include <linux/ieee80211.h>
10 #include <linux/nl80211.h>
11 #include <linux/rtnetlink.h>
12 #include <linux/slab.h>
13 #include <net/net_namespace.h>
14 #include <linux/rcupdate.h>
15 #include <net/cfg80211.h>
16 #include "ieee80211_i.h"
17 #include "driver-ops.h"
18 #include "cfg.h"
19 #include "rate.h"
20 #include "mesh.h"
21
22 static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
23 enum nl80211_iftype type, u32 *flags,
24 struct vif_params *params)
25 {
26 struct ieee80211_local *local = wiphy_priv(wiphy);
27 struct net_device *dev;
28 struct ieee80211_sub_if_data *sdata;
29 int err;
30
31 err = ieee80211_if_add(local, name, &dev, type, params);
32 if (err || type != NL80211_IFTYPE_MONITOR || !flags)
33 return err;
34
35 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
36 sdata->u.mntr_flags = *flags;
37 return 0;
38 }
39
40 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
41 {
42 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
43
44 return 0;
45 }
46
47 static int ieee80211_change_iface(struct wiphy *wiphy,
48 struct net_device *dev,
49 enum nl80211_iftype type, u32 *flags,
50 struct vif_params *params)
51 {
52 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
53 int ret;
54
55 ret = ieee80211_if_change_type(sdata, type);
56 if (ret)
57 return ret;
58
59 if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len)
60 ieee80211_sdata_set_mesh_id(sdata,
61 params->mesh_id_len,
62 params->mesh_id);
63
64 if (type == NL80211_IFTYPE_AP_VLAN &&
65 params && params->use_4addr == 0)
66 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
67 else if (type == NL80211_IFTYPE_STATION &&
68 params && params->use_4addr >= 0)
69 sdata->u.mgd.use_4addr = params->use_4addr;
70
71 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
72 struct ieee80211_local *local = sdata->local;
73
74 if (ieee80211_sdata_running(sdata)) {
75 /*
76 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
77 * changed while the interface is up.
78 * Else we would need to add a lot of cruft
79 * to update everything:
80 * cooked_mntrs, monitor and all fif_* counters
81 * reconfigure hardware
82 */
83 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
84 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
85 return -EBUSY;
86
87 ieee80211_adjust_monitor_flags(sdata, -1);
88 sdata->u.mntr_flags = *flags;
89 ieee80211_adjust_monitor_flags(sdata, 1);
90
91 ieee80211_configure_filter(local);
92 } else {
93 /*
94 * Because the interface is down, ieee80211_do_stop
95 * and ieee80211_do_open take care of "everything"
96 * mentioned in the comment above.
97 */
98 sdata->u.mntr_flags = *flags;
99 }
100 }
101
102 return 0;
103 }
104
105 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
106 u8 key_idx, bool pairwise, const u8 *mac_addr,
107 struct key_params *params)
108 {
109 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
110 struct sta_info *sta = NULL;
111 struct ieee80211_key *key;
112 int err;
113
114 if (!ieee80211_sdata_running(sdata))
115 return -ENETDOWN;
116
117 /* reject WEP and TKIP keys if WEP failed to initialize */
118 switch (params->cipher) {
119 case WLAN_CIPHER_SUITE_WEP40:
120 case WLAN_CIPHER_SUITE_TKIP:
121 case WLAN_CIPHER_SUITE_WEP104:
122 if (IS_ERR(sdata->local->wep_tx_tfm))
123 return -EINVAL;
124 break;
125 default:
126 break;
127 }
128
129 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
130 params->key, params->seq_len, params->seq);
131 if (IS_ERR(key))
132 return PTR_ERR(key);
133
134 if (pairwise)
135 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
136
137 mutex_lock(&sdata->local->sta_mtx);
138
139 if (mac_addr) {
140 sta = sta_info_get_bss(sdata, mac_addr);
141 if (!sta) {
142 ieee80211_key_free(sdata->local, key);
143 err = -ENOENT;
144 goto out_unlock;
145 }
146 }
147
148 err = ieee80211_key_link(key, sdata, sta);
149 if (err)
150 ieee80211_key_free(sdata->local, key);
151
152 out_unlock:
153 mutex_unlock(&sdata->local->sta_mtx);
154
155 return err;
156 }
157
158 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
159 u8 key_idx, bool pairwise, const u8 *mac_addr)
160 {
161 struct ieee80211_sub_if_data *sdata;
162 struct sta_info *sta;
163 int ret;
164
165 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
166
167 mutex_lock(&sdata->local->sta_mtx);
168
169 if (mac_addr) {
170 ret = -ENOENT;
171
172 sta = sta_info_get_bss(sdata, mac_addr);
173 if (!sta)
174 goto out_unlock;
175
176 if (pairwise) {
177 if (sta->ptk) {
178 ieee80211_key_free(sdata->local, sta->ptk);
179 ret = 0;
180 }
181 } else {
182 if (sta->gtk[key_idx]) {
183 ieee80211_key_free(sdata->local,
184 sta->gtk[key_idx]);
185 ret = 0;
186 }
187 }
188
189 goto out_unlock;
190 }
191
192 if (!sdata->keys[key_idx]) {
193 ret = -ENOENT;
194 goto out_unlock;
195 }
196
197 ieee80211_key_free(sdata->local, sdata->keys[key_idx]);
198 WARN_ON(sdata->keys[key_idx]);
199
200 ret = 0;
201 out_unlock:
202 mutex_unlock(&sdata->local->sta_mtx);
203
204 return ret;
205 }
206
207 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
208 u8 key_idx, bool pairwise, const u8 *mac_addr,
209 void *cookie,
210 void (*callback)(void *cookie,
211 struct key_params *params))
212 {
213 struct ieee80211_sub_if_data *sdata;
214 struct sta_info *sta = NULL;
215 u8 seq[6] = {0};
216 struct key_params params;
217 struct ieee80211_key *key = NULL;
218 u32 iv32;
219 u16 iv16;
220 int err = -ENOENT;
221
222 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
223
224 rcu_read_lock();
225
226 if (mac_addr) {
227 sta = sta_info_get_bss(sdata, mac_addr);
228 if (!sta)
229 goto out;
230
231 if (pairwise)
232 key = sta->ptk;
233 else if (key_idx < NUM_DEFAULT_KEYS)
234 key = sta->gtk[key_idx];
235 } else
236 key = sdata->keys[key_idx];
237
238 if (!key)
239 goto out;
240
241 memset(&params, 0, sizeof(params));
242
243 params.cipher = key->conf.cipher;
244
245 switch (key->conf.cipher) {
246 case WLAN_CIPHER_SUITE_TKIP:
247 iv32 = key->u.tkip.tx.iv32;
248 iv16 = key->u.tkip.tx.iv16;
249
250 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
251 drv_get_tkip_seq(sdata->local,
252 key->conf.hw_key_idx,
253 &iv32, &iv16);
254
255 seq[0] = iv16 & 0xff;
256 seq[1] = (iv16 >> 8) & 0xff;
257 seq[2] = iv32 & 0xff;
258 seq[3] = (iv32 >> 8) & 0xff;
259 seq[4] = (iv32 >> 16) & 0xff;
260 seq[5] = (iv32 >> 24) & 0xff;
261 params.seq = seq;
262 params.seq_len = 6;
263 break;
264 case WLAN_CIPHER_SUITE_CCMP:
265 seq[0] = key->u.ccmp.tx_pn[5];
266 seq[1] = key->u.ccmp.tx_pn[4];
267 seq[2] = key->u.ccmp.tx_pn[3];
268 seq[3] = key->u.ccmp.tx_pn[2];
269 seq[4] = key->u.ccmp.tx_pn[1];
270 seq[5] = key->u.ccmp.tx_pn[0];
271 params.seq = seq;
272 params.seq_len = 6;
273 break;
274 case WLAN_CIPHER_SUITE_AES_CMAC:
275 seq[0] = key->u.aes_cmac.tx_pn[5];
276 seq[1] = key->u.aes_cmac.tx_pn[4];
277 seq[2] = key->u.aes_cmac.tx_pn[3];
278 seq[3] = key->u.aes_cmac.tx_pn[2];
279 seq[4] = key->u.aes_cmac.tx_pn[1];
280 seq[5] = key->u.aes_cmac.tx_pn[0];
281 params.seq = seq;
282 params.seq_len = 6;
283 break;
284 }
285
286 params.key = key->conf.key;
287 params.key_len = key->conf.keylen;
288
289 callback(cookie, &params);
290 err = 0;
291
292 out:
293 rcu_read_unlock();
294 return err;
295 }
296
297 static int ieee80211_config_default_key(struct wiphy *wiphy,
298 struct net_device *dev,
299 u8 key_idx)
300 {
301 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
302
303 ieee80211_set_default_key(sdata, key_idx);
304
305 return 0;
306 }
307
308 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
309 struct net_device *dev,
310 u8 key_idx)
311 {
312 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
313
314 ieee80211_set_default_mgmt_key(sdata, key_idx);
315
316 return 0;
317 }
318
319 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
320 {
321 struct ieee80211_sub_if_data *sdata = sta->sdata;
322
323 sinfo->generation = sdata->local->sta_generation;
324
325 sinfo->filled = STATION_INFO_INACTIVE_TIME |
326 STATION_INFO_RX_BYTES |
327 STATION_INFO_TX_BYTES |
328 STATION_INFO_RX_PACKETS |
329 STATION_INFO_TX_PACKETS |
330 STATION_INFO_TX_BITRATE;
331
332 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
333 sinfo->rx_bytes = sta->rx_bytes;
334 sinfo->tx_bytes = sta->tx_bytes;
335 sinfo->rx_packets = sta->rx_packets;
336 sinfo->tx_packets = sta->tx_packets;
337
338 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
339 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
340 sinfo->filled |= STATION_INFO_SIGNAL;
341 sinfo->signal = (s8)sta->last_signal;
342 }
343
344 sinfo->txrate.flags = 0;
345 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
346 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
347 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
348 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
349 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
350 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
351
352 if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) {
353 struct ieee80211_supported_band *sband;
354 sband = sta->local->hw.wiphy->bands[
355 sta->local->hw.conf.channel->band];
356 sinfo->txrate.legacy =
357 sband->bitrates[sta->last_tx_rate.idx].bitrate;
358 } else
359 sinfo->txrate.mcs = sta->last_tx_rate.idx;
360
361 if (ieee80211_vif_is_mesh(&sdata->vif)) {
362 #ifdef CONFIG_MAC80211_MESH
363 sinfo->filled |= STATION_INFO_LLID |
364 STATION_INFO_PLID |
365 STATION_INFO_PLINK_STATE;
366
367 sinfo->llid = le16_to_cpu(sta->llid);
368 sinfo->plid = le16_to_cpu(sta->plid);
369 sinfo->plink_state = sta->plink_state;
370 #endif
371 }
372 }
373
374
375 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
376 int idx, u8 *mac, struct station_info *sinfo)
377 {
378 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
379 struct sta_info *sta;
380 int ret = -ENOENT;
381
382 rcu_read_lock();
383
384 sta = sta_info_get_by_idx(sdata, idx);
385 if (sta) {
386 ret = 0;
387 memcpy(mac, sta->sta.addr, ETH_ALEN);
388 sta_set_sinfo(sta, sinfo);
389 }
390
391 rcu_read_unlock();
392
393 return ret;
394 }
395
396 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
397 int idx, struct survey_info *survey)
398 {
399 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
400
401 return drv_get_survey(local, idx, survey);
402 }
403
404 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
405 u8 *mac, struct station_info *sinfo)
406 {
407 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
408 struct sta_info *sta;
409 int ret = -ENOENT;
410
411 rcu_read_lock();
412
413 sta = sta_info_get_bss(sdata, mac);
414 if (sta) {
415 ret = 0;
416 sta_set_sinfo(sta, sinfo);
417 }
418
419 rcu_read_unlock();
420
421 return ret;
422 }
423
424 /*
425 * This handles both adding a beacon and setting new beacon info
426 */
427 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
428 struct beacon_parameters *params)
429 {
430 struct beacon_data *new, *old;
431 int new_head_len, new_tail_len;
432 int size;
433 int err = -EINVAL;
434
435 old = sdata->u.ap.beacon;
436
437 /* head must not be zero-length */
438 if (params->head && !params->head_len)
439 return -EINVAL;
440
441 /*
442 * This is a kludge. beacon interval should really be part
443 * of the beacon information.
444 */
445 if (params->interval &&
446 (sdata->vif.bss_conf.beacon_int != params->interval)) {
447 sdata->vif.bss_conf.beacon_int = params->interval;
448 ieee80211_bss_info_change_notify(sdata,
449 BSS_CHANGED_BEACON_INT);
450 }
451
452 /* Need to have a beacon head if we don't have one yet */
453 if (!params->head && !old)
454 return err;
455
456 /* sorry, no way to start beaconing without dtim period */
457 if (!params->dtim_period && !old)
458 return err;
459
460 /* new or old head? */
461 if (params->head)
462 new_head_len = params->head_len;
463 else
464 new_head_len = old->head_len;
465
466 /* new or old tail? */
467 if (params->tail || !old)
468 /* params->tail_len will be zero for !params->tail */
469 new_tail_len = params->tail_len;
470 else
471 new_tail_len = old->tail_len;
472
473 size = sizeof(*new) + new_head_len + new_tail_len;
474
475 new = kzalloc(size, GFP_KERNEL);
476 if (!new)
477 return -ENOMEM;
478
479 /* start filling the new info now */
480
481 /* new or old dtim period? */
482 if (params->dtim_period)
483 new->dtim_period = params->dtim_period;
484 else
485 new->dtim_period = old->dtim_period;
486
487 /*
488 * pointers go into the block we allocated,
489 * memory is | beacon_data | head | tail |
490 */
491 new->head = ((u8 *) new) + sizeof(*new);
492 new->tail = new->head + new_head_len;
493 new->head_len = new_head_len;
494 new->tail_len = new_tail_len;
495
496 /* copy in head */
497 if (params->head)
498 memcpy(new->head, params->head, new_head_len);
499 else
500 memcpy(new->head, old->head, new_head_len);
501
502 /* copy in optional tail */
503 if (params->tail)
504 memcpy(new->tail, params->tail, new_tail_len);
505 else
506 if (old)
507 memcpy(new->tail, old->tail, new_tail_len);
508
509 sdata->vif.bss_conf.dtim_period = new->dtim_period;
510
511 rcu_assign_pointer(sdata->u.ap.beacon, new);
512
513 synchronize_rcu();
514
515 kfree(old);
516
517 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
518 BSS_CHANGED_BEACON);
519 return 0;
520 }
521
522 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
523 struct beacon_parameters *params)
524 {
525 struct ieee80211_sub_if_data *sdata;
526 struct beacon_data *old;
527
528 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
529
530 old = sdata->u.ap.beacon;
531
532 if (old)
533 return -EALREADY;
534
535 return ieee80211_config_beacon(sdata, params);
536 }
537
538 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
539 struct beacon_parameters *params)
540 {
541 struct ieee80211_sub_if_data *sdata;
542 struct beacon_data *old;
543
544 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
545
546 old = sdata->u.ap.beacon;
547
548 if (!old)
549 return -ENOENT;
550
551 return ieee80211_config_beacon(sdata, params);
552 }
553
554 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
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 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
567 synchronize_rcu();
568 kfree(old);
569
570 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
571 return 0;
572 }
573
574 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
575 struct iapp_layer2_update {
576 u8 da[ETH_ALEN]; /* broadcast */
577 u8 sa[ETH_ALEN]; /* STA addr */
578 __be16 len; /* 6 */
579 u8 dsap; /* 0 */
580 u8 ssap; /* 0 */
581 u8 control;
582 u8 xid_info[3];
583 } __packed;
584
585 static void ieee80211_send_layer2_update(struct sta_info *sta)
586 {
587 struct iapp_layer2_update *msg;
588 struct sk_buff *skb;
589
590 /* Send Level 2 Update Frame to update forwarding tables in layer 2
591 * bridge devices */
592
593 skb = dev_alloc_skb(sizeof(*msg));
594 if (!skb)
595 return;
596 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
597
598 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
599 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
600
601 memset(msg->da, 0xff, ETH_ALEN);
602 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
603 msg->len = htons(6);
604 msg->dsap = 0;
605 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
606 msg->control = 0xaf; /* XID response lsb.1111F101.
607 * F=0 (no poll command; unsolicited frame) */
608 msg->xid_info[0] = 0x81; /* XID format identifier */
609 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
610 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
611
612 skb->dev = sta->sdata->dev;
613 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
614 memset(skb->cb, 0, sizeof(skb->cb));
615 netif_rx_ni(skb);
616 }
617
618 static void sta_apply_parameters(struct ieee80211_local *local,
619 struct sta_info *sta,
620 struct station_parameters *params)
621 {
622 unsigned long flags;
623 u32 rates;
624 int i, j;
625 struct ieee80211_supported_band *sband;
626 struct ieee80211_sub_if_data *sdata = sta->sdata;
627 u32 mask, set;
628
629 sband = local->hw.wiphy->bands[local->oper_channel->band];
630
631 spin_lock_irqsave(&sta->flaglock, flags);
632 mask = params->sta_flags_mask;
633 set = params->sta_flags_set;
634
635 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
636 sta->flags &= ~WLAN_STA_AUTHORIZED;
637 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
638 sta->flags |= WLAN_STA_AUTHORIZED;
639 }
640
641 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
642 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
643 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
644 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
645 }
646
647 if (mask & BIT(NL80211_STA_FLAG_WME)) {
648 sta->flags &= ~WLAN_STA_WME;
649 if (set & BIT(NL80211_STA_FLAG_WME))
650 sta->flags |= WLAN_STA_WME;
651 }
652
653 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
654 sta->flags &= ~WLAN_STA_MFP;
655 if (set & BIT(NL80211_STA_FLAG_MFP))
656 sta->flags |= WLAN_STA_MFP;
657 }
658 spin_unlock_irqrestore(&sta->flaglock, flags);
659
660 /*
661 * cfg80211 validates this (1-2007) and allows setting the AID
662 * only when creating a new station entry
663 */
664 if (params->aid)
665 sta->sta.aid = params->aid;
666
667 /*
668 * FIXME: updating the following information is racy when this
669 * function is called from ieee80211_change_station().
670 * However, all this information should be static so
671 * maybe we should just reject attemps to change it.
672 */
673
674 if (params->listen_interval >= 0)
675 sta->listen_interval = params->listen_interval;
676
677 if (params->supported_rates) {
678 rates = 0;
679
680 for (i = 0; i < params->supported_rates_len; i++) {
681 int rate = (params->supported_rates[i] & 0x7f) * 5;
682 for (j = 0; j < sband->n_bitrates; j++) {
683 if (sband->bitrates[j].bitrate == rate)
684 rates |= BIT(j);
685 }
686 }
687 sta->sta.supp_rates[local->oper_channel->band] = rates;
688 }
689
690 if (params->ht_capa)
691 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
692 params->ht_capa,
693 &sta->sta.ht_cap);
694
695 if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
696 switch (params->plink_action) {
697 case PLINK_ACTION_OPEN:
698 mesh_plink_open(sta);
699 break;
700 case PLINK_ACTION_BLOCK:
701 mesh_plink_block(sta);
702 break;
703 }
704 }
705 }
706
707 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
708 u8 *mac, struct station_parameters *params)
709 {
710 struct ieee80211_local *local = wiphy_priv(wiphy);
711 struct sta_info *sta;
712 struct ieee80211_sub_if_data *sdata;
713 int err;
714 int layer2_update;
715
716 if (params->vlan) {
717 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
718
719 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
720 sdata->vif.type != NL80211_IFTYPE_AP)
721 return -EINVAL;
722 } else
723 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
724
725 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
726 return -EINVAL;
727
728 if (is_multicast_ether_addr(mac))
729 return -EINVAL;
730
731 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
732 if (!sta)
733 return -ENOMEM;
734
735 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
736
737 sta_apply_parameters(local, sta, params);
738
739 rate_control_rate_init(sta);
740
741 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
742 sdata->vif.type == NL80211_IFTYPE_AP;
743
744 err = sta_info_insert_rcu(sta);
745 if (err) {
746 rcu_read_unlock();
747 return err;
748 }
749
750 if (layer2_update)
751 ieee80211_send_layer2_update(sta);
752
753 rcu_read_unlock();
754
755 return 0;
756 }
757
758 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
759 u8 *mac)
760 {
761 struct ieee80211_local *local = wiphy_priv(wiphy);
762 struct ieee80211_sub_if_data *sdata;
763
764 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
765
766 if (mac)
767 return sta_info_destroy_addr_bss(sdata, mac);
768
769 sta_info_flush(local, sdata);
770 return 0;
771 }
772
773 static int ieee80211_change_station(struct wiphy *wiphy,
774 struct net_device *dev,
775 u8 *mac,
776 struct station_parameters *params)
777 {
778 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
779 struct ieee80211_local *local = wiphy_priv(wiphy);
780 struct sta_info *sta;
781 struct ieee80211_sub_if_data *vlansdata;
782
783 rcu_read_lock();
784
785 sta = sta_info_get_bss(sdata, mac);
786 if (!sta) {
787 rcu_read_unlock();
788 return -ENOENT;
789 }
790
791 if (params->vlan && params->vlan != sta->sdata->dev) {
792 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
793
794 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
795 vlansdata->vif.type != NL80211_IFTYPE_AP) {
796 rcu_read_unlock();
797 return -EINVAL;
798 }
799
800 if (params->vlan->ieee80211_ptr->use_4addr) {
801 if (vlansdata->u.vlan.sta) {
802 rcu_read_unlock();
803 return -EBUSY;
804 }
805
806 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
807 }
808
809 sta->sdata = vlansdata;
810 ieee80211_send_layer2_update(sta);
811 }
812
813 sta_apply_parameters(local, sta, params);
814
815 rcu_read_unlock();
816
817 return 0;
818 }
819
820 #ifdef CONFIG_MAC80211_MESH
821 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
822 u8 *dst, u8 *next_hop)
823 {
824 struct ieee80211_sub_if_data *sdata;
825 struct mesh_path *mpath;
826 struct sta_info *sta;
827 int err;
828
829 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
830
831 rcu_read_lock();
832 sta = sta_info_get(sdata, next_hop);
833 if (!sta) {
834 rcu_read_unlock();
835 return -ENOENT;
836 }
837
838 err = mesh_path_add(dst, sdata);
839 if (err) {
840 rcu_read_unlock();
841 return err;
842 }
843
844 mpath = mesh_path_lookup(dst, sdata);
845 if (!mpath) {
846 rcu_read_unlock();
847 return -ENXIO;
848 }
849 mesh_path_fix_nexthop(mpath, sta);
850
851 rcu_read_unlock();
852 return 0;
853 }
854
855 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
856 u8 *dst)
857 {
858 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
859
860 if (dst)
861 return mesh_path_del(dst, sdata);
862
863 mesh_path_flush(sdata);
864 return 0;
865 }
866
867 static int ieee80211_change_mpath(struct wiphy *wiphy,
868 struct net_device *dev,
869 u8 *dst, u8 *next_hop)
870 {
871 struct ieee80211_sub_if_data *sdata;
872 struct mesh_path *mpath;
873 struct sta_info *sta;
874
875 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
876
877 rcu_read_lock();
878
879 sta = sta_info_get(sdata, next_hop);
880 if (!sta) {
881 rcu_read_unlock();
882 return -ENOENT;
883 }
884
885 mpath = mesh_path_lookup(dst, sdata);
886 if (!mpath) {
887 rcu_read_unlock();
888 return -ENOENT;
889 }
890
891 mesh_path_fix_nexthop(mpath, sta);
892
893 rcu_read_unlock();
894 return 0;
895 }
896
897 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
898 struct mpath_info *pinfo)
899 {
900 if (mpath->next_hop)
901 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
902 else
903 memset(next_hop, 0, ETH_ALEN);
904
905 pinfo->generation = mesh_paths_generation;
906
907 pinfo->filled = MPATH_INFO_FRAME_QLEN |
908 MPATH_INFO_SN |
909 MPATH_INFO_METRIC |
910 MPATH_INFO_EXPTIME |
911 MPATH_INFO_DISCOVERY_TIMEOUT |
912 MPATH_INFO_DISCOVERY_RETRIES |
913 MPATH_INFO_FLAGS;
914
915 pinfo->frame_qlen = mpath->frame_queue.qlen;
916 pinfo->sn = mpath->sn;
917 pinfo->metric = mpath->metric;
918 if (time_before(jiffies, mpath->exp_time))
919 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
920 pinfo->discovery_timeout =
921 jiffies_to_msecs(mpath->discovery_timeout);
922 pinfo->discovery_retries = mpath->discovery_retries;
923 pinfo->flags = 0;
924 if (mpath->flags & MESH_PATH_ACTIVE)
925 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
926 if (mpath->flags & MESH_PATH_RESOLVING)
927 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
928 if (mpath->flags & MESH_PATH_SN_VALID)
929 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
930 if (mpath->flags & MESH_PATH_FIXED)
931 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
932 if (mpath->flags & MESH_PATH_RESOLVING)
933 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
934
935 pinfo->flags = mpath->flags;
936 }
937
938 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
939 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
940
941 {
942 struct ieee80211_sub_if_data *sdata;
943 struct mesh_path *mpath;
944
945 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
946
947 rcu_read_lock();
948 mpath = mesh_path_lookup(dst, sdata);
949 if (!mpath) {
950 rcu_read_unlock();
951 return -ENOENT;
952 }
953 memcpy(dst, mpath->dst, ETH_ALEN);
954 mpath_set_pinfo(mpath, next_hop, pinfo);
955 rcu_read_unlock();
956 return 0;
957 }
958
959 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
960 int idx, u8 *dst, u8 *next_hop,
961 struct mpath_info *pinfo)
962 {
963 struct ieee80211_sub_if_data *sdata;
964 struct mesh_path *mpath;
965
966 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
967
968 rcu_read_lock();
969 mpath = mesh_path_lookup_by_idx(idx, sdata);
970 if (!mpath) {
971 rcu_read_unlock();
972 return -ENOENT;
973 }
974 memcpy(dst, mpath->dst, ETH_ALEN);
975 mpath_set_pinfo(mpath, next_hop, pinfo);
976 rcu_read_unlock();
977 return 0;
978 }
979
980 static int ieee80211_get_mesh_params(struct wiphy *wiphy,
981 struct net_device *dev,
982 struct mesh_config *conf)
983 {
984 struct ieee80211_sub_if_data *sdata;
985 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
986
987 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
988 return 0;
989 }
990
991 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
992 {
993 return (mask >> (parm-1)) & 0x1;
994 }
995
996 static int ieee80211_set_mesh_params(struct wiphy *wiphy,
997 struct net_device *dev,
998 const struct mesh_config *nconf, u32 mask)
999 {
1000 struct mesh_config *conf;
1001 struct ieee80211_sub_if_data *sdata;
1002 struct ieee80211_if_mesh *ifmsh;
1003
1004 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1005 ifmsh = &sdata->u.mesh;
1006
1007 /* Set the config options which we are interested in setting */
1008 conf = &(sdata->u.mesh.mshcfg);
1009 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1010 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1011 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1012 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1013 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1014 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1015 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1016 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1017 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1018 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1019 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1020 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1021 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1022 conf->auto_open_plinks = nconf->auto_open_plinks;
1023 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1024 conf->dot11MeshHWMPmaxPREQretries =
1025 nconf->dot11MeshHWMPmaxPREQretries;
1026 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1027 conf->path_refresh_time = nconf->path_refresh_time;
1028 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1029 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1030 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1031 conf->dot11MeshHWMPactivePathTimeout =
1032 nconf->dot11MeshHWMPactivePathTimeout;
1033 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1034 conf->dot11MeshHWMPpreqMinInterval =
1035 nconf->dot11MeshHWMPpreqMinInterval;
1036 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1037 mask))
1038 conf->dot11MeshHWMPnetDiameterTraversalTime =
1039 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1040 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1041 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1042 ieee80211_mesh_root_setup(ifmsh);
1043 }
1044 return 0;
1045 }
1046
1047 #endif
1048
1049 static int ieee80211_change_bss(struct wiphy *wiphy,
1050 struct net_device *dev,
1051 struct bss_parameters *params)
1052 {
1053 struct ieee80211_sub_if_data *sdata;
1054 u32 changed = 0;
1055
1056 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1057
1058 if (params->use_cts_prot >= 0) {
1059 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1060 changed |= BSS_CHANGED_ERP_CTS_PROT;
1061 }
1062 if (params->use_short_preamble >= 0) {
1063 sdata->vif.bss_conf.use_short_preamble =
1064 params->use_short_preamble;
1065 changed |= BSS_CHANGED_ERP_PREAMBLE;
1066 }
1067
1068 if (!sdata->vif.bss_conf.use_short_slot &&
1069 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1070 sdata->vif.bss_conf.use_short_slot = true;
1071 changed |= BSS_CHANGED_ERP_SLOT;
1072 }
1073
1074 if (params->use_short_slot_time >= 0) {
1075 sdata->vif.bss_conf.use_short_slot =
1076 params->use_short_slot_time;
1077 changed |= BSS_CHANGED_ERP_SLOT;
1078 }
1079
1080 if (params->basic_rates) {
1081 int i, j;
1082 u32 rates = 0;
1083 struct ieee80211_local *local = wiphy_priv(wiphy);
1084 struct ieee80211_supported_band *sband =
1085 wiphy->bands[local->oper_channel->band];
1086
1087 for (i = 0; i < params->basic_rates_len; i++) {
1088 int rate = (params->basic_rates[i] & 0x7f) * 5;
1089 for (j = 0; j < sband->n_bitrates; j++) {
1090 if (sband->bitrates[j].bitrate == rate)
1091 rates |= BIT(j);
1092 }
1093 }
1094 sdata->vif.bss_conf.basic_rates = rates;
1095 changed |= BSS_CHANGED_BASIC_RATES;
1096 }
1097
1098 if (params->ap_isolate >= 0) {
1099 if (params->ap_isolate)
1100 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1101 else
1102 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1103 }
1104
1105 ieee80211_bss_info_change_notify(sdata, changed);
1106
1107 return 0;
1108 }
1109
1110 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1111 struct ieee80211_txq_params *params)
1112 {
1113 struct ieee80211_local *local = wiphy_priv(wiphy);
1114 struct ieee80211_tx_queue_params p;
1115
1116 if (!local->ops->conf_tx)
1117 return -EOPNOTSUPP;
1118
1119 memset(&p, 0, sizeof(p));
1120 p.aifs = params->aifs;
1121 p.cw_max = params->cwmax;
1122 p.cw_min = params->cwmin;
1123 p.txop = params->txop;
1124
1125 /*
1126 * Setting tx queue params disables u-apsd because it's only
1127 * called in master mode.
1128 */
1129 p.uapsd = false;
1130
1131 if (drv_conf_tx(local, params->queue, &p)) {
1132 wiphy_debug(local->hw.wiphy,
1133 "failed to set TX queue parameters for queue %d\n",
1134 params->queue);
1135 return -EINVAL;
1136 }
1137
1138 return 0;
1139 }
1140
1141 static int ieee80211_set_channel(struct wiphy *wiphy,
1142 struct net_device *netdev,
1143 struct ieee80211_channel *chan,
1144 enum nl80211_channel_type channel_type)
1145 {
1146 struct ieee80211_local *local = wiphy_priv(wiphy);
1147 struct ieee80211_sub_if_data *sdata = NULL;
1148
1149 if (netdev)
1150 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1151
1152 switch (ieee80211_get_channel_mode(local, NULL)) {
1153 case CHAN_MODE_HOPPING:
1154 return -EBUSY;
1155 case CHAN_MODE_FIXED:
1156 if (local->oper_channel != chan)
1157 return -EBUSY;
1158 if (!sdata && local->_oper_channel_type == channel_type)
1159 return 0;
1160 break;
1161 case CHAN_MODE_UNDEFINED:
1162 break;
1163 }
1164
1165 local->oper_channel = chan;
1166
1167 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1168 return -EBUSY;
1169
1170 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1171 if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR)
1172 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1173
1174 return 0;
1175 }
1176
1177 #ifdef CONFIG_PM
1178 static int ieee80211_suspend(struct wiphy *wiphy)
1179 {
1180 return __ieee80211_suspend(wiphy_priv(wiphy));
1181 }
1182
1183 static int ieee80211_resume(struct wiphy *wiphy)
1184 {
1185 return __ieee80211_resume(wiphy_priv(wiphy));
1186 }
1187 #else
1188 #define ieee80211_suspend NULL
1189 #define ieee80211_resume NULL
1190 #endif
1191
1192 static int ieee80211_scan(struct wiphy *wiphy,
1193 struct net_device *dev,
1194 struct cfg80211_scan_request *req)
1195 {
1196 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1197
1198 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1199 case NL80211_IFTYPE_STATION:
1200 case NL80211_IFTYPE_ADHOC:
1201 case NL80211_IFTYPE_MESH_POINT:
1202 case NL80211_IFTYPE_P2P_CLIENT:
1203 break;
1204 case NL80211_IFTYPE_P2P_GO:
1205 if (sdata->local->ops->hw_scan)
1206 break;
1207 /* FIXME: implement NoA while scanning in software */
1208 return -EOPNOTSUPP;
1209 case NL80211_IFTYPE_AP:
1210 if (sdata->u.ap.beacon)
1211 return -EOPNOTSUPP;
1212 break;
1213 default:
1214 return -EOPNOTSUPP;
1215 }
1216
1217 return ieee80211_request_scan(sdata, req);
1218 }
1219
1220 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1221 struct cfg80211_auth_request *req)
1222 {
1223 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1224 }
1225
1226 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1227 struct cfg80211_assoc_request *req)
1228 {
1229 struct ieee80211_local *local = wiphy_priv(wiphy);
1230 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1231
1232 switch (ieee80211_get_channel_mode(local, sdata)) {
1233 case CHAN_MODE_HOPPING:
1234 return -EBUSY;
1235 case CHAN_MODE_FIXED:
1236 if (local->oper_channel == req->bss->channel)
1237 break;
1238 return -EBUSY;
1239 case CHAN_MODE_UNDEFINED:
1240 break;
1241 }
1242
1243 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1244 }
1245
1246 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1247 struct cfg80211_deauth_request *req,
1248 void *cookie)
1249 {
1250 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1251 req, cookie);
1252 }
1253
1254 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1255 struct cfg80211_disassoc_request *req,
1256 void *cookie)
1257 {
1258 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1259 req, cookie);
1260 }
1261
1262 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1263 struct cfg80211_ibss_params *params)
1264 {
1265 struct ieee80211_local *local = wiphy_priv(wiphy);
1266 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1267
1268 switch (ieee80211_get_channel_mode(local, sdata)) {
1269 case CHAN_MODE_HOPPING:
1270 return -EBUSY;
1271 case CHAN_MODE_FIXED:
1272 if (!params->channel_fixed)
1273 return -EBUSY;
1274 if (local->oper_channel == params->channel)
1275 break;
1276 return -EBUSY;
1277 case CHAN_MODE_UNDEFINED:
1278 break;
1279 }
1280
1281 return ieee80211_ibss_join(sdata, params);
1282 }
1283
1284 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1285 {
1286 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1287
1288 return ieee80211_ibss_leave(sdata);
1289 }
1290
1291 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1292 {
1293 struct ieee80211_local *local = wiphy_priv(wiphy);
1294 int err;
1295
1296 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1297 err = drv_set_coverage_class(local, wiphy->coverage_class);
1298
1299 if (err)
1300 return err;
1301 }
1302
1303 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1304 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1305
1306 if (err)
1307 return err;
1308 }
1309
1310 if (changed & WIPHY_PARAM_RETRY_SHORT)
1311 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1312 if (changed & WIPHY_PARAM_RETRY_LONG)
1313 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1314 if (changed &
1315 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1316 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1317
1318 return 0;
1319 }
1320
1321 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1322 enum nl80211_tx_power_setting type, int mbm)
1323 {
1324 struct ieee80211_local *local = wiphy_priv(wiphy);
1325 struct ieee80211_channel *chan = local->hw.conf.channel;
1326 u32 changes = 0;
1327
1328 switch (type) {
1329 case NL80211_TX_POWER_AUTOMATIC:
1330 local->user_power_level = -1;
1331 break;
1332 case NL80211_TX_POWER_LIMITED:
1333 if (mbm < 0 || (mbm % 100))
1334 return -EOPNOTSUPP;
1335 local->user_power_level = MBM_TO_DBM(mbm);
1336 break;
1337 case NL80211_TX_POWER_FIXED:
1338 if (mbm < 0 || (mbm % 100))
1339 return -EOPNOTSUPP;
1340 /* TODO: move to cfg80211 when it knows the channel */
1341 if (MBM_TO_DBM(mbm) > chan->max_power)
1342 return -EINVAL;
1343 local->user_power_level = MBM_TO_DBM(mbm);
1344 break;
1345 }
1346
1347 ieee80211_hw_config(local, changes);
1348
1349 return 0;
1350 }
1351
1352 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1353 {
1354 struct ieee80211_local *local = wiphy_priv(wiphy);
1355
1356 *dbm = local->hw.conf.power_level;
1357
1358 return 0;
1359 }
1360
1361 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1362 u8 *addr)
1363 {
1364 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1365
1366 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1367
1368 return 0;
1369 }
1370
1371 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1372 {
1373 struct ieee80211_local *local = wiphy_priv(wiphy);
1374
1375 drv_rfkill_poll(local);
1376 }
1377
1378 #ifdef CONFIG_NL80211_TESTMODE
1379 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1380 {
1381 struct ieee80211_local *local = wiphy_priv(wiphy);
1382
1383 if (!local->ops->testmode_cmd)
1384 return -EOPNOTSUPP;
1385
1386 return local->ops->testmode_cmd(&local->hw, data, len);
1387 }
1388 #endif
1389
1390 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1391 enum ieee80211_smps_mode smps_mode)
1392 {
1393 const u8 *ap;
1394 enum ieee80211_smps_mode old_req;
1395 int err;
1396
1397 old_req = sdata->u.mgd.req_smps;
1398 sdata->u.mgd.req_smps = smps_mode;
1399
1400 if (old_req == smps_mode &&
1401 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1402 return 0;
1403
1404 /*
1405 * If not associated, or current association is not an HT
1406 * association, there's no need to send an action frame.
1407 */
1408 if (!sdata->u.mgd.associated ||
1409 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1410 mutex_lock(&sdata->local->iflist_mtx);
1411 ieee80211_recalc_smps(sdata->local);
1412 mutex_unlock(&sdata->local->iflist_mtx);
1413 return 0;
1414 }
1415
1416 ap = sdata->u.mgd.associated->bssid;
1417
1418 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1419 if (sdata->u.mgd.powersave)
1420 smps_mode = IEEE80211_SMPS_DYNAMIC;
1421 else
1422 smps_mode = IEEE80211_SMPS_OFF;
1423 }
1424
1425 /* send SM PS frame to AP */
1426 err = ieee80211_send_smps_action(sdata, smps_mode,
1427 ap, ap);
1428 if (err)
1429 sdata->u.mgd.req_smps = old_req;
1430
1431 return err;
1432 }
1433
1434 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1435 bool enabled, int timeout)
1436 {
1437 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1438 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1439
1440 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1441 return -EOPNOTSUPP;
1442
1443 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1444 return -EOPNOTSUPP;
1445
1446 if (enabled == sdata->u.mgd.powersave &&
1447 timeout == local->dynamic_ps_forced_timeout)
1448 return 0;
1449
1450 sdata->u.mgd.powersave = enabled;
1451 local->dynamic_ps_forced_timeout = timeout;
1452
1453 /* no change, but if automatic follow powersave */
1454 mutex_lock(&sdata->u.mgd.mtx);
1455 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1456 mutex_unlock(&sdata->u.mgd.mtx);
1457
1458 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1459 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1460
1461 ieee80211_recalc_ps(local, -1);
1462
1463 return 0;
1464 }
1465
1466 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1467 struct net_device *dev,
1468 s32 rssi_thold, u32 rssi_hyst)
1469 {
1470 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1471 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1472 struct ieee80211_vif *vif = &sdata->vif;
1473 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1474
1475 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1476 rssi_hyst == bss_conf->cqm_rssi_hyst)
1477 return 0;
1478
1479 bss_conf->cqm_rssi_thold = rssi_thold;
1480 bss_conf->cqm_rssi_hyst = rssi_hyst;
1481
1482 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1483 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1484 return -EOPNOTSUPP;
1485 return 0;
1486 }
1487
1488 /* tell the driver upon association, unless already associated */
1489 if (sdata->u.mgd.associated)
1490 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1491
1492 return 0;
1493 }
1494
1495 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1496 struct net_device *dev,
1497 const u8 *addr,
1498 const struct cfg80211_bitrate_mask *mask)
1499 {
1500 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1501 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1502 int i;
1503
1504 /*
1505 * This _could_ be supported by providing a hook for
1506 * drivers for this function, but at this point it
1507 * doesn't seem worth bothering.
1508 */
1509 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
1510 return -EOPNOTSUPP;
1511
1512
1513 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1514 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1515
1516 return 0;
1517 }
1518
1519 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1520 struct net_device *dev,
1521 struct ieee80211_channel *chan,
1522 enum nl80211_channel_type channel_type,
1523 unsigned int duration,
1524 u64 *cookie)
1525 {
1526 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1527
1528 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1529 duration, cookie);
1530 }
1531
1532 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1533 struct net_device *dev,
1534 u64 cookie)
1535 {
1536 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1537
1538 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1539 }
1540
1541 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1542 struct ieee80211_channel *chan,
1543 enum nl80211_channel_type channel_type,
1544 bool channel_type_valid,
1545 const u8 *buf, size_t len, u64 *cookie)
1546 {
1547 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1548 struct ieee80211_local *local = sdata->local;
1549 struct sk_buff *skb;
1550 struct sta_info *sta;
1551 const struct ieee80211_mgmt *mgmt = (void *)buf;
1552 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1553 IEEE80211_TX_CTL_REQ_TX_STATUS;
1554
1555 /* Check that we are on the requested channel for transmission */
1556 if (chan != local->tmp_channel &&
1557 chan != local->oper_channel)
1558 return -EBUSY;
1559 if (channel_type_valid &&
1560 (channel_type != local->tmp_channel_type &&
1561 channel_type != local->_oper_channel_type))
1562 return -EBUSY;
1563
1564 switch (sdata->vif.type) {
1565 case NL80211_IFTYPE_ADHOC:
1566 case NL80211_IFTYPE_AP:
1567 case NL80211_IFTYPE_AP_VLAN:
1568 case NL80211_IFTYPE_P2P_GO:
1569 if (!ieee80211_is_action(mgmt->frame_control) ||
1570 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1571 break;
1572 rcu_read_lock();
1573 sta = sta_info_get(sdata, mgmt->da);
1574 rcu_read_unlock();
1575 if (!sta)
1576 return -ENOLINK;
1577 break;
1578 case NL80211_IFTYPE_STATION:
1579 case NL80211_IFTYPE_P2P_CLIENT:
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 .mgmt_tx = ieee80211_mgmt_tx,
1651 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
1652 };
kernel source for telekom puls (alcatel/mediatek)