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98460783c2d37abad1caad6ab40cd04b6fb0ea6c
[deliverable/linux.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 <linux/if_ether.h>
16 #include <net/cfg80211.h>
17 #include "ieee80211_i.h"
18 #include "driver-ops.h"
19 #include "cfg.h"
20 #include "rate.h"
21 #include "mesh.h"
22
23 static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name,
24 enum nl80211_iftype type,
25 u32 *flags,
26 struct vif_params *params)
27 {
28 struct ieee80211_local *local = wiphy_priv(wiphy);
29 struct net_device *dev;
30 struct ieee80211_sub_if_data *sdata;
31 int err;
32
33 err = ieee80211_if_add(local, name, &dev, type, params);
34 if (err)
35 return ERR_PTR(err);
36
37 if (type == NL80211_IFTYPE_MONITOR && flags) {
38 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
39 sdata->u.mntr_flags = *flags;
40 }
41
42 return dev;
43 }
44
45 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
46 {
47 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
48
49 return 0;
50 }
51
52 static int ieee80211_change_iface(struct wiphy *wiphy,
53 struct net_device *dev,
54 enum nl80211_iftype type, u32 *flags,
55 struct vif_params *params)
56 {
57 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
58 int ret;
59
60 ret = ieee80211_if_change_type(sdata, type);
61 if (ret)
62 return ret;
63
64 if (type == NL80211_IFTYPE_AP_VLAN &&
65 params && params->use_4addr == 0)
66 RCU_INIT_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_set_noack_map(struct wiphy *wiphy,
106 struct net_device *dev,
107 u16 noack_map)
108 {
109 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
110
111 sdata->noack_map = noack_map;
112 return 0;
113 }
114
115 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
116 u8 key_idx, bool pairwise, const u8 *mac_addr,
117 struct key_params *params)
118 {
119 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
120 struct sta_info *sta = NULL;
121 struct ieee80211_key *key;
122 int err;
123
124 if (!ieee80211_sdata_running(sdata))
125 return -ENETDOWN;
126
127 /* reject WEP and TKIP keys if WEP failed to initialize */
128 switch (params->cipher) {
129 case WLAN_CIPHER_SUITE_WEP40:
130 case WLAN_CIPHER_SUITE_TKIP:
131 case WLAN_CIPHER_SUITE_WEP104:
132 if (IS_ERR(sdata->local->wep_tx_tfm))
133 return -EINVAL;
134 break;
135 default:
136 break;
137 }
138
139 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
140 params->key, params->seq_len, params->seq);
141 if (IS_ERR(key))
142 return PTR_ERR(key);
143
144 if (pairwise)
145 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
146
147 mutex_lock(&sdata->local->sta_mtx);
148
149 if (mac_addr) {
150 if (ieee80211_vif_is_mesh(&sdata->vif))
151 sta = sta_info_get(sdata, mac_addr);
152 else
153 sta = sta_info_get_bss(sdata, mac_addr);
154 if (!sta) {
155 ieee80211_key_free(sdata->local, key);
156 err = -ENOENT;
157 goto out_unlock;
158 }
159 }
160
161 err = ieee80211_key_link(key, sdata, sta);
162 if (err)
163 ieee80211_key_free(sdata->local, key);
164
165 out_unlock:
166 mutex_unlock(&sdata->local->sta_mtx);
167
168 return err;
169 }
170
171 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
172 u8 key_idx, bool pairwise, const u8 *mac_addr)
173 {
174 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
175 struct ieee80211_local *local = sdata->local;
176 struct sta_info *sta;
177 struct ieee80211_key *key = NULL;
178 int ret;
179
180 mutex_lock(&local->sta_mtx);
181 mutex_lock(&local->key_mtx);
182
183 if (mac_addr) {
184 ret = -ENOENT;
185
186 sta = sta_info_get_bss(sdata, mac_addr);
187 if (!sta)
188 goto out_unlock;
189
190 if (pairwise)
191 key = key_mtx_dereference(local, sta->ptk);
192 else
193 key = key_mtx_dereference(local, sta->gtk[key_idx]);
194 } else
195 key = key_mtx_dereference(local, sdata->keys[key_idx]);
196
197 if (!key) {
198 ret = -ENOENT;
199 goto out_unlock;
200 }
201
202 __ieee80211_key_free(key);
203
204 ret = 0;
205 out_unlock:
206 mutex_unlock(&local->key_mtx);
207 mutex_unlock(&local->sta_mtx);
208
209 return ret;
210 }
211
212 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
213 u8 key_idx, bool pairwise, const u8 *mac_addr,
214 void *cookie,
215 void (*callback)(void *cookie,
216 struct key_params *params))
217 {
218 struct ieee80211_sub_if_data *sdata;
219 struct sta_info *sta = NULL;
220 u8 seq[6] = {0};
221 struct key_params params;
222 struct ieee80211_key *key = NULL;
223 u64 pn64;
224 u32 iv32;
225 u16 iv16;
226 int err = -ENOENT;
227
228 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
229
230 rcu_read_lock();
231
232 if (mac_addr) {
233 sta = sta_info_get_bss(sdata, mac_addr);
234 if (!sta)
235 goto out;
236
237 if (pairwise)
238 key = rcu_dereference(sta->ptk);
239 else if (key_idx < NUM_DEFAULT_KEYS)
240 key = rcu_dereference(sta->gtk[key_idx]);
241 } else
242 key = rcu_dereference(sdata->keys[key_idx]);
243
244 if (!key)
245 goto out;
246
247 memset(&params, 0, sizeof(params));
248
249 params.cipher = key->conf.cipher;
250
251 switch (key->conf.cipher) {
252 case WLAN_CIPHER_SUITE_TKIP:
253 iv32 = key->u.tkip.tx.iv32;
254 iv16 = key->u.tkip.tx.iv16;
255
256 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
257 drv_get_tkip_seq(sdata->local,
258 key->conf.hw_key_idx,
259 &iv32, &iv16);
260
261 seq[0] = iv16 & 0xff;
262 seq[1] = (iv16 >> 8) & 0xff;
263 seq[2] = iv32 & 0xff;
264 seq[3] = (iv32 >> 8) & 0xff;
265 seq[4] = (iv32 >> 16) & 0xff;
266 seq[5] = (iv32 >> 24) & 0xff;
267 params.seq = seq;
268 params.seq_len = 6;
269 break;
270 case WLAN_CIPHER_SUITE_CCMP:
271 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
272 seq[0] = pn64;
273 seq[1] = pn64 >> 8;
274 seq[2] = pn64 >> 16;
275 seq[3] = pn64 >> 24;
276 seq[4] = pn64 >> 32;
277 seq[5] = pn64 >> 40;
278 params.seq = seq;
279 params.seq_len = 6;
280 break;
281 case WLAN_CIPHER_SUITE_AES_CMAC:
282 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
283 seq[0] = pn64;
284 seq[1] = pn64 >> 8;
285 seq[2] = pn64 >> 16;
286 seq[3] = pn64 >> 24;
287 seq[4] = pn64 >> 32;
288 seq[5] = pn64 >> 40;
289 params.seq = seq;
290 params.seq_len = 6;
291 break;
292 }
293
294 params.key = key->conf.key;
295 params.key_len = key->conf.keylen;
296
297 callback(cookie, &params);
298 err = 0;
299
300 out:
301 rcu_read_unlock();
302 return err;
303 }
304
305 static int ieee80211_config_default_key(struct wiphy *wiphy,
306 struct net_device *dev,
307 u8 key_idx, bool uni,
308 bool multi)
309 {
310 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
311
312 ieee80211_set_default_key(sdata, key_idx, uni, multi);
313
314 return 0;
315 }
316
317 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
318 struct net_device *dev,
319 u8 key_idx)
320 {
321 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
322
323 ieee80211_set_default_mgmt_key(sdata, key_idx);
324
325 return 0;
326 }
327
328 static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
329 {
330 if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
331 struct ieee80211_supported_band *sband;
332 sband = sta->local->hw.wiphy->bands[
333 sta->local->hw.conf.channel->band];
334 rate->legacy = sband->bitrates[idx].bitrate;
335 } else
336 rate->mcs = idx;
337 }
338
339 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
340 {
341 struct ieee80211_sub_if_data *sdata = sta->sdata;
342 struct timespec uptime;
343
344 sinfo->generation = sdata->local->sta_generation;
345
346 sinfo->filled = STATION_INFO_INACTIVE_TIME |
347 STATION_INFO_RX_BYTES |
348 STATION_INFO_TX_BYTES |
349 STATION_INFO_RX_PACKETS |
350 STATION_INFO_TX_PACKETS |
351 STATION_INFO_TX_RETRIES |
352 STATION_INFO_TX_FAILED |
353 STATION_INFO_TX_BITRATE |
354 STATION_INFO_RX_BITRATE |
355 STATION_INFO_RX_DROP_MISC |
356 STATION_INFO_BSS_PARAM |
357 STATION_INFO_CONNECTED_TIME |
358 STATION_INFO_STA_FLAGS |
359 STATION_INFO_BEACON_LOSS_COUNT;
360
361 do_posix_clock_monotonic_gettime(&uptime);
362 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
363
364 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
365 sinfo->rx_bytes = sta->rx_bytes;
366 sinfo->tx_bytes = sta->tx_bytes;
367 sinfo->rx_packets = sta->rx_packets;
368 sinfo->tx_packets = sta->tx_packets;
369 sinfo->tx_retries = sta->tx_retry_count;
370 sinfo->tx_failed = sta->tx_retry_failed;
371 sinfo->rx_dropped_misc = sta->rx_dropped;
372 sinfo->beacon_loss_count = sta->beacon_loss_count;
373
374 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
375 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
376 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
377 sinfo->signal = (s8)sta->last_signal;
378 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
379 }
380
381 sinfo->txrate.flags = 0;
382 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
383 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
384 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
385 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
386 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
387 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
388 rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx);
389
390 sinfo->rxrate.flags = 0;
391 if (sta->last_rx_rate_flag & RX_FLAG_HT)
392 sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
393 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
394 sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
395 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
396 sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
397 rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
398
399 if (ieee80211_vif_is_mesh(&sdata->vif)) {
400 #ifdef CONFIG_MAC80211_MESH
401 sinfo->filled |= STATION_INFO_LLID |
402 STATION_INFO_PLID |
403 STATION_INFO_PLINK_STATE;
404
405 sinfo->llid = le16_to_cpu(sta->llid);
406 sinfo->plid = le16_to_cpu(sta->plid);
407 sinfo->plink_state = sta->plink_state;
408 #endif
409 }
410
411 sinfo->bss_param.flags = 0;
412 if (sdata->vif.bss_conf.use_cts_prot)
413 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
414 if (sdata->vif.bss_conf.use_short_preamble)
415 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
416 if (sdata->vif.bss_conf.use_short_slot)
417 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
418 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
419 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
420
421 sinfo->sta_flags.set = 0;
422 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
423 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
424 BIT(NL80211_STA_FLAG_WME) |
425 BIT(NL80211_STA_FLAG_MFP) |
426 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
427 BIT(NL80211_STA_FLAG_TDLS_PEER);
428 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
429 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
430 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
431 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
432 if (test_sta_flag(sta, WLAN_STA_WME))
433 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
434 if (test_sta_flag(sta, WLAN_STA_MFP))
435 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
436 if (test_sta_flag(sta, WLAN_STA_AUTH))
437 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
438 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
439 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
440 }
441
442
443 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
444 int idx, u8 *mac, struct station_info *sinfo)
445 {
446 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
447 struct sta_info *sta;
448 int ret = -ENOENT;
449
450 rcu_read_lock();
451
452 sta = sta_info_get_by_idx(sdata, idx);
453 if (sta) {
454 ret = 0;
455 memcpy(mac, sta->sta.addr, ETH_ALEN);
456 sta_set_sinfo(sta, sinfo);
457 }
458
459 rcu_read_unlock();
460
461 return ret;
462 }
463
464 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
465 int idx, struct survey_info *survey)
466 {
467 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
468
469 return drv_get_survey(local, idx, survey);
470 }
471
472 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
473 u8 *mac, struct station_info *sinfo)
474 {
475 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
476 struct sta_info *sta;
477 int ret = -ENOENT;
478
479 rcu_read_lock();
480
481 sta = sta_info_get_bss(sdata, mac);
482 if (sta) {
483 ret = 0;
484 sta_set_sinfo(sta, sinfo);
485 }
486
487 rcu_read_unlock();
488
489 return ret;
490 }
491
492 static void ieee80211_config_ap_ssid(struct ieee80211_sub_if_data *sdata,
493 struct beacon_parameters *params)
494 {
495 struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
496
497 bss_conf->ssid_len = params->ssid_len;
498
499 if (params->ssid_len)
500 memcpy(bss_conf->ssid, params->ssid, params->ssid_len);
501
502 bss_conf->hidden_ssid =
503 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
504 }
505
506 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
507 u8 *resp, size_t resp_len)
508 {
509 struct sk_buff *new, *old;
510
511 if (!resp || !resp_len)
512 return -EINVAL;
513
514 old = rtnl_dereference(sdata->u.ap.probe_resp);
515
516 new = dev_alloc_skb(resp_len);
517 if (!new)
518 return -ENOMEM;
519
520 memcpy(skb_put(new, resp_len), resp, resp_len);
521
522 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
523 synchronize_rcu();
524
525 if (old)
526 dev_kfree_skb(old);
527
528 return 0;
529 }
530
531 /*
532 * This handles both adding a beacon and setting new beacon info
533 */
534 static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
535 struct beacon_parameters *params)
536 {
537 struct beacon_data *new, *old;
538 int new_head_len, new_tail_len;
539 int size;
540 int err = -EINVAL;
541 u32 changed = 0;
542
543 old = rtnl_dereference(sdata->u.ap.beacon);
544
545 /* head must not be zero-length */
546 if (params->head && !params->head_len)
547 return -EINVAL;
548
549 /*
550 * This is a kludge. beacon interval should really be part
551 * of the beacon information.
552 */
553 if (params->interval &&
554 (sdata->vif.bss_conf.beacon_int != params->interval)) {
555 sdata->vif.bss_conf.beacon_int = params->interval;
556 ieee80211_bss_info_change_notify(sdata,
557 BSS_CHANGED_BEACON_INT);
558 }
559
560 /* Need to have a beacon head if we don't have one yet */
561 if (!params->head && !old)
562 return err;
563
564 /* sorry, no way to start beaconing without dtim period */
565 if (!params->dtim_period && !old)
566 return err;
567
568 /* new or old head? */
569 if (params->head)
570 new_head_len = params->head_len;
571 else
572 new_head_len = old->head_len;
573
574 /* new or old tail? */
575 if (params->tail || !old)
576 /* params->tail_len will be zero for !params->tail */
577 new_tail_len = params->tail_len;
578 else
579 new_tail_len = old->tail_len;
580
581 size = sizeof(*new) + new_head_len + new_tail_len;
582
583 new = kzalloc(size, GFP_KERNEL);
584 if (!new)
585 return -ENOMEM;
586
587 /* start filling the new info now */
588
589 /* new or old dtim period? */
590 if (params->dtim_period)
591 new->dtim_period = params->dtim_period;
592 else
593 new->dtim_period = old->dtim_period;
594
595 /*
596 * pointers go into the block we allocated,
597 * memory is | beacon_data | head | tail |
598 */
599 new->head = ((u8 *) new) + sizeof(*new);
600 new->tail = new->head + new_head_len;
601 new->head_len = new_head_len;
602 new->tail_len = new_tail_len;
603
604 /* copy in head */
605 if (params->head)
606 memcpy(new->head, params->head, new_head_len);
607 else
608 memcpy(new->head, old->head, new_head_len);
609
610 /* copy in optional tail */
611 if (params->tail)
612 memcpy(new->tail, params->tail, new_tail_len);
613 else
614 if (old)
615 memcpy(new->tail, old->tail, new_tail_len);
616
617 sdata->vif.bss_conf.dtim_period = new->dtim_period;
618
619 rcu_assign_pointer(sdata->u.ap.beacon, new);
620
621 synchronize_rcu();
622
623 kfree(old);
624
625 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
626 params->probe_resp_len);
627 if (!err)
628 changed |= BSS_CHANGED_AP_PROBE_RESP;
629
630 ieee80211_config_ap_ssid(sdata, params);
631 changed |= BSS_CHANGED_BEACON_ENABLED |
632 BSS_CHANGED_BEACON |
633 BSS_CHANGED_SSID;
634
635 ieee80211_bss_info_change_notify(sdata, changed);
636 return 0;
637 }
638
639 static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
640 struct beacon_parameters *params)
641 {
642 struct ieee80211_sub_if_data *sdata;
643 struct beacon_data *old;
644 struct ieee80211_sub_if_data *vlan;
645 int ret;
646
647 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
648
649 old = rtnl_dereference(sdata->u.ap.beacon);
650 if (old)
651 return -EALREADY;
652
653 ret = ieee80211_config_beacon(sdata, params);
654 if (ret)
655 return ret;
656
657 /*
658 * Apply control port protocol, this allows us to
659 * not encrypt dynamic WEP control frames.
660 */
661 sdata->control_port_protocol = params->crypto.control_port_ethertype;
662 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
663 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
664 vlan->control_port_protocol =
665 params->crypto.control_port_ethertype;
666 vlan->control_port_no_encrypt =
667 params->crypto.control_port_no_encrypt;
668 }
669
670 return 0;
671 }
672
673 static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
674 struct beacon_parameters *params)
675 {
676 struct ieee80211_sub_if_data *sdata;
677 struct beacon_data *old;
678
679 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
680
681 old = rtnl_dereference(sdata->u.ap.beacon);
682 if (!old)
683 return -ENOENT;
684
685 return ieee80211_config_beacon(sdata, params);
686 }
687
688 static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
689 {
690 struct ieee80211_sub_if_data *sdata;
691 struct beacon_data *old;
692
693 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
694
695 old = rtnl_dereference(sdata->u.ap.beacon);
696 if (!old)
697 return -ENOENT;
698
699 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
700 synchronize_rcu();
701 kfree(old);
702
703 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
704 return 0;
705 }
706
707 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
708 struct iapp_layer2_update {
709 u8 da[ETH_ALEN]; /* broadcast */
710 u8 sa[ETH_ALEN]; /* STA addr */
711 __be16 len; /* 6 */
712 u8 dsap; /* 0 */
713 u8 ssap; /* 0 */
714 u8 control;
715 u8 xid_info[3];
716 } __packed;
717
718 static void ieee80211_send_layer2_update(struct sta_info *sta)
719 {
720 struct iapp_layer2_update *msg;
721 struct sk_buff *skb;
722
723 /* Send Level 2 Update Frame to update forwarding tables in layer 2
724 * bridge devices */
725
726 skb = dev_alloc_skb(sizeof(*msg));
727 if (!skb)
728 return;
729 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
730
731 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
732 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
733
734 memset(msg->da, 0xff, ETH_ALEN);
735 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
736 msg->len = htons(6);
737 msg->dsap = 0;
738 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
739 msg->control = 0xaf; /* XID response lsb.1111F101.
740 * F=0 (no poll command; unsolicited frame) */
741 msg->xid_info[0] = 0x81; /* XID format identifier */
742 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
743 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
744
745 skb->dev = sta->sdata->dev;
746 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
747 memset(skb->cb, 0, sizeof(skb->cb));
748 netif_rx_ni(skb);
749 }
750
751 static int sta_apply_parameters(struct ieee80211_local *local,
752 struct sta_info *sta,
753 struct station_parameters *params)
754 {
755 int ret = 0;
756 u32 rates;
757 int i, j;
758 struct ieee80211_supported_band *sband;
759 struct ieee80211_sub_if_data *sdata = sta->sdata;
760 u32 mask, set;
761
762 sband = local->hw.wiphy->bands[local->oper_channel->band];
763
764 mask = params->sta_flags_mask;
765 set = params->sta_flags_set;
766
767 /*
768 * In mesh mode, we can clear AUTHENTICATED flag but must
769 * also make ASSOCIATED follow appropriately for the driver
770 * API. See also below, after AUTHORIZED changes.
771 */
772 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
773 /* cfg80211 should not allow this in non-mesh modes */
774 if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
775 return -EINVAL;
776
777 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
778 !test_sta_flag(sta, WLAN_STA_AUTH)) {
779 ret = sta_info_move_state_checked(sta,
780 IEEE80211_STA_AUTH);
781 if (ret)
782 return ret;
783 ret = sta_info_move_state_checked(sta,
784 IEEE80211_STA_ASSOC);
785 if (ret)
786 return ret;
787 }
788 }
789
790 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
791 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
792 ret = sta_info_move_state_checked(sta,
793 IEEE80211_STA_AUTHORIZED);
794 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
795 ret = sta_info_move_state_checked(sta,
796 IEEE80211_STA_ASSOC);
797 if (ret)
798 return ret;
799 }
800
801 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
802 /* cfg80211 should not allow this in non-mesh modes */
803 if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
804 return -EINVAL;
805
806 if (!(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
807 test_sta_flag(sta, WLAN_STA_AUTH)) {
808 ret = sta_info_move_state_checked(sta,
809 IEEE80211_STA_AUTH);
810 if (ret)
811 return ret;
812 ret = sta_info_move_state_checked(sta,
813 IEEE80211_STA_NONE);
814 if (ret)
815 return ret;
816 }
817 }
818
819
820 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
821 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
822 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
823 else
824 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
825 }
826
827 if (mask & BIT(NL80211_STA_FLAG_WME)) {
828 if (set & BIT(NL80211_STA_FLAG_WME)) {
829 set_sta_flag(sta, WLAN_STA_WME);
830 sta->sta.wme = true;
831 } else {
832 clear_sta_flag(sta, WLAN_STA_WME);
833 sta->sta.wme = false;
834 }
835 }
836
837 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
838 if (set & BIT(NL80211_STA_FLAG_MFP))
839 set_sta_flag(sta, WLAN_STA_MFP);
840 else
841 clear_sta_flag(sta, WLAN_STA_MFP);
842 }
843
844 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
845 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
846 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
847 else
848 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
849 }
850
851 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
852 sta->sta.uapsd_queues = params->uapsd_queues;
853 sta->sta.max_sp = params->max_sp;
854 }
855
856 /*
857 * cfg80211 validates this (1-2007) and allows setting the AID
858 * only when creating a new station entry
859 */
860 if (params->aid)
861 sta->sta.aid = params->aid;
862
863 /*
864 * FIXME: updating the following information is racy when this
865 * function is called from ieee80211_change_station().
866 * However, all this information should be static so
867 * maybe we should just reject attemps to change it.
868 */
869
870 if (params->listen_interval >= 0)
871 sta->listen_interval = params->listen_interval;
872
873 if (params->supported_rates) {
874 rates = 0;
875
876 for (i = 0; i < params->supported_rates_len; i++) {
877 int rate = (params->supported_rates[i] & 0x7f) * 5;
878 for (j = 0; j < sband->n_bitrates; j++) {
879 if (sband->bitrates[j].bitrate == rate)
880 rates |= BIT(j);
881 }
882 }
883 sta->sta.supp_rates[local->oper_channel->band] = rates;
884 }
885
886 if (params->ht_capa)
887 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
888 params->ht_capa,
889 &sta->sta.ht_cap);
890
891 if (ieee80211_vif_is_mesh(&sdata->vif)) {
892 #ifdef CONFIG_MAC80211_MESH
893 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
894 switch (params->plink_state) {
895 case NL80211_PLINK_LISTEN:
896 case NL80211_PLINK_ESTAB:
897 case NL80211_PLINK_BLOCKED:
898 sta->plink_state = params->plink_state;
899 break;
900 default:
901 /* nothing */
902 break;
903 }
904 else
905 switch (params->plink_action) {
906 case PLINK_ACTION_OPEN:
907 mesh_plink_open(sta);
908 break;
909 case PLINK_ACTION_BLOCK:
910 mesh_plink_block(sta);
911 break;
912 }
913 #endif
914 }
915
916 return 0;
917 }
918
919 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
920 u8 *mac, struct station_parameters *params)
921 {
922 struct ieee80211_local *local = wiphy_priv(wiphy);
923 struct sta_info *sta;
924 struct ieee80211_sub_if_data *sdata;
925 int err;
926 int layer2_update;
927
928 if (params->vlan) {
929 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
930
931 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
932 sdata->vif.type != NL80211_IFTYPE_AP)
933 return -EINVAL;
934 } else
935 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
936
937 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
938 return -EINVAL;
939
940 if (is_multicast_ether_addr(mac))
941 return -EINVAL;
942
943 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
944 if (!sta)
945 return -ENOMEM;
946
947 sta_info_move_state(sta, IEEE80211_STA_AUTH);
948 sta_info_move_state(sta, IEEE80211_STA_ASSOC);
949
950 err = sta_apply_parameters(local, sta, params);
951 if (err) {
952 sta_info_free(local, sta);
953 return err;
954 }
955
956 /*
957 * for TDLS, rate control should be initialized only when supported
958 * rates are known.
959 */
960 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
961 rate_control_rate_init(sta);
962
963 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
964 sdata->vif.type == NL80211_IFTYPE_AP;
965
966 err = sta_info_insert_rcu(sta);
967 if (err) {
968 rcu_read_unlock();
969 return err;
970 }
971
972 if (layer2_update)
973 ieee80211_send_layer2_update(sta);
974
975 rcu_read_unlock();
976
977 return 0;
978 }
979
980 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
981 u8 *mac)
982 {
983 struct ieee80211_local *local = wiphy_priv(wiphy);
984 struct ieee80211_sub_if_data *sdata;
985
986 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
987
988 if (mac)
989 return sta_info_destroy_addr_bss(sdata, mac);
990
991 sta_info_flush(local, sdata);
992 return 0;
993 }
994
995 static int ieee80211_change_station(struct wiphy *wiphy,
996 struct net_device *dev,
997 u8 *mac,
998 struct station_parameters *params)
999 {
1000 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1001 struct ieee80211_local *local = wiphy_priv(wiphy);
1002 struct sta_info *sta;
1003 struct ieee80211_sub_if_data *vlansdata;
1004 int err;
1005
1006 mutex_lock(&local->sta_mtx);
1007
1008 sta = sta_info_get_bss(sdata, mac);
1009 if (!sta) {
1010 mutex_unlock(&local->sta_mtx);
1011 return -ENOENT;
1012 }
1013
1014 /* in station mode, supported rates are only valid with TDLS */
1015 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1016 params->supported_rates &&
1017 !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1018 mutex_unlock(&local->sta_mtx);
1019 return -EINVAL;
1020 }
1021
1022 if (params->vlan && params->vlan != sta->sdata->dev) {
1023 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1024
1025 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1026 vlansdata->vif.type != NL80211_IFTYPE_AP) {
1027 mutex_unlock(&local->sta_mtx);
1028 return -EINVAL;
1029 }
1030
1031 if (params->vlan->ieee80211_ptr->use_4addr) {
1032 if (vlansdata->u.vlan.sta) {
1033 mutex_unlock(&local->sta_mtx);
1034 return -EBUSY;
1035 }
1036
1037 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1038 }
1039
1040 sta->sdata = vlansdata;
1041 ieee80211_send_layer2_update(sta);
1042 }
1043
1044 err = sta_apply_parameters(local, sta, params);
1045 if (err) {
1046 mutex_unlock(&local->sta_mtx);
1047 return err;
1048 }
1049
1050 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && params->supported_rates)
1051 rate_control_rate_init(sta);
1052
1053 mutex_unlock(&local->sta_mtx);
1054
1055 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1056 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
1057 ieee80211_recalc_ps(local, -1);
1058
1059 return 0;
1060 }
1061
1062 #ifdef CONFIG_MAC80211_MESH
1063 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1064 u8 *dst, u8 *next_hop)
1065 {
1066 struct ieee80211_sub_if_data *sdata;
1067 struct mesh_path *mpath;
1068 struct sta_info *sta;
1069 int err;
1070
1071 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1072
1073 rcu_read_lock();
1074 sta = sta_info_get(sdata, next_hop);
1075 if (!sta) {
1076 rcu_read_unlock();
1077 return -ENOENT;
1078 }
1079
1080 err = mesh_path_add(dst, sdata);
1081 if (err) {
1082 rcu_read_unlock();
1083 return err;
1084 }
1085
1086 mpath = mesh_path_lookup(dst, sdata);
1087 if (!mpath) {
1088 rcu_read_unlock();
1089 return -ENXIO;
1090 }
1091 mesh_path_fix_nexthop(mpath, sta);
1092
1093 rcu_read_unlock();
1094 return 0;
1095 }
1096
1097 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1098 u8 *dst)
1099 {
1100 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1101
1102 if (dst)
1103 return mesh_path_del(dst, sdata);
1104
1105 mesh_path_flush_by_iface(sdata);
1106 return 0;
1107 }
1108
1109 static int ieee80211_change_mpath(struct wiphy *wiphy,
1110 struct net_device *dev,
1111 u8 *dst, u8 *next_hop)
1112 {
1113 struct ieee80211_sub_if_data *sdata;
1114 struct mesh_path *mpath;
1115 struct sta_info *sta;
1116
1117 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1118
1119 rcu_read_lock();
1120
1121 sta = sta_info_get(sdata, next_hop);
1122 if (!sta) {
1123 rcu_read_unlock();
1124 return -ENOENT;
1125 }
1126
1127 mpath = mesh_path_lookup(dst, sdata);
1128 if (!mpath) {
1129 rcu_read_unlock();
1130 return -ENOENT;
1131 }
1132
1133 mesh_path_fix_nexthop(mpath, sta);
1134
1135 rcu_read_unlock();
1136 return 0;
1137 }
1138
1139 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1140 struct mpath_info *pinfo)
1141 {
1142 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1143
1144 if (next_hop_sta)
1145 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1146 else
1147 memset(next_hop, 0, ETH_ALEN);
1148
1149 pinfo->generation = mesh_paths_generation;
1150
1151 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1152 MPATH_INFO_SN |
1153 MPATH_INFO_METRIC |
1154 MPATH_INFO_EXPTIME |
1155 MPATH_INFO_DISCOVERY_TIMEOUT |
1156 MPATH_INFO_DISCOVERY_RETRIES |
1157 MPATH_INFO_FLAGS;
1158
1159 pinfo->frame_qlen = mpath->frame_queue.qlen;
1160 pinfo->sn = mpath->sn;
1161 pinfo->metric = mpath->metric;
1162 if (time_before(jiffies, mpath->exp_time))
1163 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1164 pinfo->discovery_timeout =
1165 jiffies_to_msecs(mpath->discovery_timeout);
1166 pinfo->discovery_retries = mpath->discovery_retries;
1167 pinfo->flags = 0;
1168 if (mpath->flags & MESH_PATH_ACTIVE)
1169 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1170 if (mpath->flags & MESH_PATH_RESOLVING)
1171 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1172 if (mpath->flags & MESH_PATH_SN_VALID)
1173 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1174 if (mpath->flags & MESH_PATH_FIXED)
1175 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1176 if (mpath->flags & MESH_PATH_RESOLVING)
1177 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1178
1179 pinfo->flags = mpath->flags;
1180 }
1181
1182 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1183 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1184
1185 {
1186 struct ieee80211_sub_if_data *sdata;
1187 struct mesh_path *mpath;
1188
1189 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1190
1191 rcu_read_lock();
1192 mpath = mesh_path_lookup(dst, sdata);
1193 if (!mpath) {
1194 rcu_read_unlock();
1195 return -ENOENT;
1196 }
1197 memcpy(dst, mpath->dst, ETH_ALEN);
1198 mpath_set_pinfo(mpath, next_hop, pinfo);
1199 rcu_read_unlock();
1200 return 0;
1201 }
1202
1203 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1204 int idx, u8 *dst, u8 *next_hop,
1205 struct mpath_info *pinfo)
1206 {
1207 struct ieee80211_sub_if_data *sdata;
1208 struct mesh_path *mpath;
1209
1210 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1211
1212 rcu_read_lock();
1213 mpath = mesh_path_lookup_by_idx(idx, sdata);
1214 if (!mpath) {
1215 rcu_read_unlock();
1216 return -ENOENT;
1217 }
1218 memcpy(dst, mpath->dst, ETH_ALEN);
1219 mpath_set_pinfo(mpath, next_hop, pinfo);
1220 rcu_read_unlock();
1221 return 0;
1222 }
1223
1224 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1225 struct net_device *dev,
1226 struct mesh_config *conf)
1227 {
1228 struct ieee80211_sub_if_data *sdata;
1229 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1230
1231 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1232 return 0;
1233 }
1234
1235 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1236 {
1237 return (mask >> (parm-1)) & 0x1;
1238 }
1239
1240 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1241 const struct mesh_setup *setup)
1242 {
1243 u8 *new_ie;
1244 const u8 *old_ie;
1245 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1246 struct ieee80211_sub_if_data, u.mesh);
1247
1248 /* allocate information elements */
1249 new_ie = NULL;
1250 old_ie = ifmsh->ie;
1251
1252 if (setup->ie_len) {
1253 new_ie = kmemdup(setup->ie, setup->ie_len,
1254 GFP_KERNEL);
1255 if (!new_ie)
1256 return -ENOMEM;
1257 }
1258 ifmsh->ie_len = setup->ie_len;
1259 ifmsh->ie = new_ie;
1260 kfree(old_ie);
1261
1262 /* now copy the rest of the setup parameters */
1263 ifmsh->mesh_id_len = setup->mesh_id_len;
1264 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1265 ifmsh->mesh_pp_id = setup->path_sel_proto;
1266 ifmsh->mesh_pm_id = setup->path_metric;
1267 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1268 if (setup->is_authenticated)
1269 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1270 if (setup->is_secure)
1271 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1272
1273 /* mcast rate setting in Mesh Node */
1274 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1275 sizeof(setup->mcast_rate));
1276
1277 return 0;
1278 }
1279
1280 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1281 struct net_device *dev, u32 mask,
1282 const struct mesh_config *nconf)
1283 {
1284 struct mesh_config *conf;
1285 struct ieee80211_sub_if_data *sdata;
1286 struct ieee80211_if_mesh *ifmsh;
1287
1288 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1289 ifmsh = &sdata->u.mesh;
1290
1291 /* Set the config options which we are interested in setting */
1292 conf = &(sdata->u.mesh.mshcfg);
1293 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1294 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1295 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1296 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1297 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1298 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1299 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1300 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1301 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1302 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1303 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1304 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1305 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1306 conf->dot11MeshTTL = nconf->element_ttl;
1307 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1308 conf->auto_open_plinks = nconf->auto_open_plinks;
1309 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1310 conf->dot11MeshHWMPmaxPREQretries =
1311 nconf->dot11MeshHWMPmaxPREQretries;
1312 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1313 conf->path_refresh_time = nconf->path_refresh_time;
1314 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1315 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1316 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1317 conf->dot11MeshHWMPactivePathTimeout =
1318 nconf->dot11MeshHWMPactivePathTimeout;
1319 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1320 conf->dot11MeshHWMPpreqMinInterval =
1321 nconf->dot11MeshHWMPpreqMinInterval;
1322 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1323 conf->dot11MeshHWMPperrMinInterval =
1324 nconf->dot11MeshHWMPperrMinInterval;
1325 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1326 mask))
1327 conf->dot11MeshHWMPnetDiameterTraversalTime =
1328 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1329 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1330 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1331 ieee80211_mesh_root_setup(ifmsh);
1332 }
1333 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1334 /* our current gate announcement implementation rides on root
1335 * announcements, so require this ifmsh to also be a root node
1336 * */
1337 if (nconf->dot11MeshGateAnnouncementProtocol &&
1338 !conf->dot11MeshHWMPRootMode) {
1339 conf->dot11MeshHWMPRootMode = 1;
1340 ieee80211_mesh_root_setup(ifmsh);
1341 }
1342 conf->dot11MeshGateAnnouncementProtocol =
1343 nconf->dot11MeshGateAnnouncementProtocol;
1344 }
1345 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) {
1346 conf->dot11MeshHWMPRannInterval =
1347 nconf->dot11MeshHWMPRannInterval;
1348 }
1349 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1350 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1351 return 0;
1352 }
1353
1354 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1355 const struct mesh_config *conf,
1356 const struct mesh_setup *setup)
1357 {
1358 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1359 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1360 int err;
1361
1362 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1363 err = copy_mesh_setup(ifmsh, setup);
1364 if (err)
1365 return err;
1366 ieee80211_start_mesh(sdata);
1367
1368 return 0;
1369 }
1370
1371 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1372 {
1373 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1374
1375 ieee80211_stop_mesh(sdata);
1376
1377 return 0;
1378 }
1379 #endif
1380
1381 static int ieee80211_change_bss(struct wiphy *wiphy,
1382 struct net_device *dev,
1383 struct bss_parameters *params)
1384 {
1385 struct ieee80211_sub_if_data *sdata;
1386 u32 changed = 0;
1387
1388 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1389
1390 if (params->use_cts_prot >= 0) {
1391 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1392 changed |= BSS_CHANGED_ERP_CTS_PROT;
1393 }
1394 if (params->use_short_preamble >= 0) {
1395 sdata->vif.bss_conf.use_short_preamble =
1396 params->use_short_preamble;
1397 changed |= BSS_CHANGED_ERP_PREAMBLE;
1398 }
1399
1400 if (!sdata->vif.bss_conf.use_short_slot &&
1401 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1402 sdata->vif.bss_conf.use_short_slot = true;
1403 changed |= BSS_CHANGED_ERP_SLOT;
1404 }
1405
1406 if (params->use_short_slot_time >= 0) {
1407 sdata->vif.bss_conf.use_short_slot =
1408 params->use_short_slot_time;
1409 changed |= BSS_CHANGED_ERP_SLOT;
1410 }
1411
1412 if (params->basic_rates) {
1413 int i, j;
1414 u32 rates = 0;
1415 struct ieee80211_local *local = wiphy_priv(wiphy);
1416 struct ieee80211_supported_band *sband =
1417 wiphy->bands[local->oper_channel->band];
1418
1419 for (i = 0; i < params->basic_rates_len; i++) {
1420 int rate = (params->basic_rates[i] & 0x7f) * 5;
1421 for (j = 0; j < sband->n_bitrates; j++) {
1422 if (sband->bitrates[j].bitrate == rate)
1423 rates |= BIT(j);
1424 }
1425 }
1426 sdata->vif.bss_conf.basic_rates = rates;
1427 changed |= BSS_CHANGED_BASIC_RATES;
1428 }
1429
1430 if (params->ap_isolate >= 0) {
1431 if (params->ap_isolate)
1432 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1433 else
1434 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1435 }
1436
1437 if (params->ht_opmode >= 0) {
1438 sdata->vif.bss_conf.ht_operation_mode =
1439 (u16) params->ht_opmode;
1440 changed |= BSS_CHANGED_HT;
1441 }
1442
1443 ieee80211_bss_info_change_notify(sdata, changed);
1444
1445 return 0;
1446 }
1447
1448 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1449 struct net_device *dev,
1450 struct ieee80211_txq_params *params)
1451 {
1452 struct ieee80211_local *local = wiphy_priv(wiphy);
1453 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1454 struct ieee80211_tx_queue_params p;
1455
1456 if (!local->ops->conf_tx)
1457 return -EOPNOTSUPP;
1458
1459 memset(&p, 0, sizeof(p));
1460 p.aifs = params->aifs;
1461 p.cw_max = params->cwmax;
1462 p.cw_min = params->cwmin;
1463 p.txop = params->txop;
1464
1465 /*
1466 * Setting tx queue params disables u-apsd because it's only
1467 * called in master mode.
1468 */
1469 p.uapsd = false;
1470
1471 if (params->queue >= local->hw.queues)
1472 return -EINVAL;
1473
1474 sdata->tx_conf[params->queue] = p;
1475 if (drv_conf_tx(local, sdata, params->queue, &p)) {
1476 wiphy_debug(local->hw.wiphy,
1477 "failed to set TX queue parameters for queue %d\n",
1478 params->queue);
1479 return -EINVAL;
1480 }
1481
1482 return 0;
1483 }
1484
1485 static int ieee80211_set_channel(struct wiphy *wiphy,
1486 struct net_device *netdev,
1487 struct ieee80211_channel *chan,
1488 enum nl80211_channel_type channel_type)
1489 {
1490 struct ieee80211_local *local = wiphy_priv(wiphy);
1491 struct ieee80211_sub_if_data *sdata = NULL;
1492 struct ieee80211_channel *old_oper;
1493 enum nl80211_channel_type old_oper_type;
1494 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
1495
1496 if (netdev)
1497 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1498
1499 switch (ieee80211_get_channel_mode(local, NULL)) {
1500 case CHAN_MODE_HOPPING:
1501 return -EBUSY;
1502 case CHAN_MODE_FIXED:
1503 if (local->oper_channel != chan)
1504 return -EBUSY;
1505 if (!sdata && local->_oper_channel_type == channel_type)
1506 return 0;
1507 break;
1508 case CHAN_MODE_UNDEFINED:
1509 break;
1510 }
1511
1512 if (sdata)
1513 old_vif_oper_type = sdata->vif.bss_conf.channel_type;
1514 old_oper_type = local->_oper_channel_type;
1515
1516 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1517 return -EBUSY;
1518
1519 old_oper = local->oper_channel;
1520 local->oper_channel = chan;
1521
1522 /* Update driver if changes were actually made. */
1523 if ((old_oper != local->oper_channel) ||
1524 (old_oper_type != local->_oper_channel_type))
1525 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1526
1527 if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR &&
1528 old_vif_oper_type != sdata->vif.bss_conf.channel_type)
1529 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1530
1531 return 0;
1532 }
1533
1534 #ifdef CONFIG_PM
1535 static int ieee80211_suspend(struct wiphy *wiphy,
1536 struct cfg80211_wowlan *wowlan)
1537 {
1538 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1539 }
1540
1541 static int ieee80211_resume(struct wiphy *wiphy)
1542 {
1543 return __ieee80211_resume(wiphy_priv(wiphy));
1544 }
1545 #else
1546 #define ieee80211_suspend NULL
1547 #define ieee80211_resume NULL
1548 #endif
1549
1550 static int ieee80211_scan(struct wiphy *wiphy,
1551 struct net_device *dev,
1552 struct cfg80211_scan_request *req)
1553 {
1554 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1555
1556 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1557 case NL80211_IFTYPE_STATION:
1558 case NL80211_IFTYPE_ADHOC:
1559 case NL80211_IFTYPE_MESH_POINT:
1560 case NL80211_IFTYPE_P2P_CLIENT:
1561 break;
1562 case NL80211_IFTYPE_P2P_GO:
1563 if (sdata->local->ops->hw_scan)
1564 break;
1565 /*
1566 * FIXME: implement NoA while scanning in software,
1567 * for now fall through to allow scanning only when
1568 * beaconing hasn't been configured yet
1569 */
1570 case NL80211_IFTYPE_AP:
1571 if (sdata->u.ap.beacon)
1572 return -EOPNOTSUPP;
1573 break;
1574 default:
1575 return -EOPNOTSUPP;
1576 }
1577
1578 return ieee80211_request_scan(sdata, req);
1579 }
1580
1581 static int
1582 ieee80211_sched_scan_start(struct wiphy *wiphy,
1583 struct net_device *dev,
1584 struct cfg80211_sched_scan_request *req)
1585 {
1586 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1587
1588 if (!sdata->local->ops->sched_scan_start)
1589 return -EOPNOTSUPP;
1590
1591 return ieee80211_request_sched_scan_start(sdata, req);
1592 }
1593
1594 static int
1595 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1596 {
1597 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1598
1599 if (!sdata->local->ops->sched_scan_stop)
1600 return -EOPNOTSUPP;
1601
1602 return ieee80211_request_sched_scan_stop(sdata);
1603 }
1604
1605 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1606 struct cfg80211_auth_request *req)
1607 {
1608 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1609 }
1610
1611 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1612 struct cfg80211_assoc_request *req)
1613 {
1614 struct ieee80211_local *local = wiphy_priv(wiphy);
1615 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1616
1617 switch (ieee80211_get_channel_mode(local, sdata)) {
1618 case CHAN_MODE_HOPPING:
1619 return -EBUSY;
1620 case CHAN_MODE_FIXED:
1621 if (local->oper_channel == req->bss->channel)
1622 break;
1623 return -EBUSY;
1624 case CHAN_MODE_UNDEFINED:
1625 break;
1626 }
1627
1628 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1629 }
1630
1631 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1632 struct cfg80211_deauth_request *req,
1633 void *cookie)
1634 {
1635 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1636 req, cookie);
1637 }
1638
1639 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1640 struct cfg80211_disassoc_request *req,
1641 void *cookie)
1642 {
1643 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1644 req, cookie);
1645 }
1646
1647 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1648 struct cfg80211_ibss_params *params)
1649 {
1650 struct ieee80211_local *local = wiphy_priv(wiphy);
1651 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1652
1653 switch (ieee80211_get_channel_mode(local, sdata)) {
1654 case CHAN_MODE_HOPPING:
1655 return -EBUSY;
1656 case CHAN_MODE_FIXED:
1657 if (!params->channel_fixed)
1658 return -EBUSY;
1659 if (local->oper_channel == params->channel)
1660 break;
1661 return -EBUSY;
1662 case CHAN_MODE_UNDEFINED:
1663 break;
1664 }
1665
1666 return ieee80211_ibss_join(sdata, params);
1667 }
1668
1669 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1670 {
1671 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1672
1673 return ieee80211_ibss_leave(sdata);
1674 }
1675
1676 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1677 {
1678 struct ieee80211_local *local = wiphy_priv(wiphy);
1679 int err;
1680
1681 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1682 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1683
1684 if (err)
1685 return err;
1686 }
1687
1688 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1689 err = drv_set_coverage_class(local, wiphy->coverage_class);
1690
1691 if (err)
1692 return err;
1693 }
1694
1695 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1696 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1697
1698 if (err)
1699 return err;
1700 }
1701
1702 if (changed & WIPHY_PARAM_RETRY_SHORT)
1703 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1704 if (changed & WIPHY_PARAM_RETRY_LONG)
1705 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1706 if (changed &
1707 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1708 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1709
1710 return 0;
1711 }
1712
1713 static int ieee80211_set_tx_power(struct wiphy *wiphy,
1714 enum nl80211_tx_power_setting type, int mbm)
1715 {
1716 struct ieee80211_local *local = wiphy_priv(wiphy);
1717 struct ieee80211_channel *chan = local->hw.conf.channel;
1718 u32 changes = 0;
1719
1720 switch (type) {
1721 case NL80211_TX_POWER_AUTOMATIC:
1722 local->user_power_level = -1;
1723 break;
1724 case NL80211_TX_POWER_LIMITED:
1725 if (mbm < 0 || (mbm % 100))
1726 return -EOPNOTSUPP;
1727 local->user_power_level = MBM_TO_DBM(mbm);
1728 break;
1729 case NL80211_TX_POWER_FIXED:
1730 if (mbm < 0 || (mbm % 100))
1731 return -EOPNOTSUPP;
1732 /* TODO: move to cfg80211 when it knows the channel */
1733 if (MBM_TO_DBM(mbm) > chan->max_power)
1734 return -EINVAL;
1735 local->user_power_level = MBM_TO_DBM(mbm);
1736 break;
1737 }
1738
1739 ieee80211_hw_config(local, changes);
1740
1741 return 0;
1742 }
1743
1744 static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1745 {
1746 struct ieee80211_local *local = wiphy_priv(wiphy);
1747
1748 *dbm = local->hw.conf.power_level;
1749
1750 return 0;
1751 }
1752
1753 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
1754 const u8 *addr)
1755 {
1756 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1757
1758 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1759
1760 return 0;
1761 }
1762
1763 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1764 {
1765 struct ieee80211_local *local = wiphy_priv(wiphy);
1766
1767 drv_rfkill_poll(local);
1768 }
1769
1770 #ifdef CONFIG_NL80211_TESTMODE
1771 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1772 {
1773 struct ieee80211_local *local = wiphy_priv(wiphy);
1774
1775 if (!local->ops->testmode_cmd)
1776 return -EOPNOTSUPP;
1777
1778 return local->ops->testmode_cmd(&local->hw, data, len);
1779 }
1780
1781 static int ieee80211_testmode_dump(struct wiphy *wiphy,
1782 struct sk_buff *skb,
1783 struct netlink_callback *cb,
1784 void *data, int len)
1785 {
1786 struct ieee80211_local *local = wiphy_priv(wiphy);
1787
1788 if (!local->ops->testmode_dump)
1789 return -EOPNOTSUPP;
1790
1791 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
1792 }
1793 #endif
1794
1795 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1796 enum ieee80211_smps_mode smps_mode)
1797 {
1798 const u8 *ap;
1799 enum ieee80211_smps_mode old_req;
1800 int err;
1801
1802 lockdep_assert_held(&sdata->u.mgd.mtx);
1803
1804 old_req = sdata->u.mgd.req_smps;
1805 sdata->u.mgd.req_smps = smps_mode;
1806
1807 if (old_req == smps_mode &&
1808 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1809 return 0;
1810
1811 /*
1812 * If not associated, or current association is not an HT
1813 * association, there's no need to send an action frame.
1814 */
1815 if (!sdata->u.mgd.associated ||
1816 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1817 mutex_lock(&sdata->local->iflist_mtx);
1818 ieee80211_recalc_smps(sdata->local);
1819 mutex_unlock(&sdata->local->iflist_mtx);
1820 return 0;
1821 }
1822
1823 ap = sdata->u.mgd.associated->bssid;
1824
1825 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1826 if (sdata->u.mgd.powersave)
1827 smps_mode = IEEE80211_SMPS_DYNAMIC;
1828 else
1829 smps_mode = IEEE80211_SMPS_OFF;
1830 }
1831
1832 /* send SM PS frame to AP */
1833 err = ieee80211_send_smps_action(sdata, smps_mode,
1834 ap, ap);
1835 if (err)
1836 sdata->u.mgd.req_smps = old_req;
1837
1838 return err;
1839 }
1840
1841 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1842 bool enabled, int timeout)
1843 {
1844 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1845 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1846
1847 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1848 return -EOPNOTSUPP;
1849
1850 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1851 return -EOPNOTSUPP;
1852
1853 if (enabled == sdata->u.mgd.powersave &&
1854 timeout == local->dynamic_ps_forced_timeout)
1855 return 0;
1856
1857 sdata->u.mgd.powersave = enabled;
1858 local->dynamic_ps_forced_timeout = timeout;
1859
1860 /* no change, but if automatic follow powersave */
1861 mutex_lock(&sdata->u.mgd.mtx);
1862 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1863 mutex_unlock(&sdata->u.mgd.mtx);
1864
1865 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1866 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1867
1868 ieee80211_recalc_ps(local, -1);
1869
1870 return 0;
1871 }
1872
1873 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1874 struct net_device *dev,
1875 s32 rssi_thold, u32 rssi_hyst)
1876 {
1877 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1878 struct ieee80211_vif *vif = &sdata->vif;
1879 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1880
1881 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1882 rssi_hyst == bss_conf->cqm_rssi_hyst)
1883 return 0;
1884
1885 bss_conf->cqm_rssi_thold = rssi_thold;
1886 bss_conf->cqm_rssi_hyst = rssi_hyst;
1887
1888 /* tell the driver upon association, unless already associated */
1889 if (sdata->u.mgd.associated &&
1890 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
1891 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1892
1893 return 0;
1894 }
1895
1896 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1897 struct net_device *dev,
1898 const u8 *addr,
1899 const struct cfg80211_bitrate_mask *mask)
1900 {
1901 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1902 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1903 int i, ret;
1904
1905 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
1906 ret = drv_set_bitrate_mask(local, sdata, mask);
1907 if (ret)
1908 return ret;
1909 }
1910
1911 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1912 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
1913
1914 return 0;
1915 }
1916
1917 static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1918 struct net_device *dev,
1919 struct ieee80211_channel *chan,
1920 enum nl80211_channel_type chantype,
1921 unsigned int duration, u64 *cookie)
1922 {
1923 int ret;
1924 u32 random_cookie;
1925
1926 lockdep_assert_held(&local->mtx);
1927
1928 if (local->hw_roc_cookie)
1929 return -EBUSY;
1930 /* must be nonzero */
1931 random_cookie = random32() | 1;
1932
1933 *cookie = random_cookie;
1934 local->hw_roc_dev = dev;
1935 local->hw_roc_cookie = random_cookie;
1936 local->hw_roc_channel = chan;
1937 local->hw_roc_channel_type = chantype;
1938 local->hw_roc_duration = duration;
1939 ret = drv_remain_on_channel(local, chan, chantype, duration);
1940 if (ret) {
1941 local->hw_roc_channel = NULL;
1942 local->hw_roc_cookie = 0;
1943 }
1944
1945 return ret;
1946 }
1947
1948 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1949 struct net_device *dev,
1950 struct ieee80211_channel *chan,
1951 enum nl80211_channel_type channel_type,
1952 unsigned int duration,
1953 u64 *cookie)
1954 {
1955 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1956 struct ieee80211_local *local = sdata->local;
1957
1958 if (local->ops->remain_on_channel) {
1959 int ret;
1960
1961 mutex_lock(&local->mtx);
1962 ret = ieee80211_remain_on_channel_hw(local, dev,
1963 chan, channel_type,
1964 duration, cookie);
1965 local->hw_roc_for_tx = false;
1966 mutex_unlock(&local->mtx);
1967
1968 return ret;
1969 }
1970
1971 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1972 duration, cookie);
1973 }
1974
1975 static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1976 u64 cookie)
1977 {
1978 int ret;
1979
1980 lockdep_assert_held(&local->mtx);
1981
1982 if (local->hw_roc_cookie != cookie)
1983 return -ENOENT;
1984
1985 ret = drv_cancel_remain_on_channel(local);
1986 if (ret)
1987 return ret;
1988
1989 local->hw_roc_cookie = 0;
1990 local->hw_roc_channel = NULL;
1991
1992 ieee80211_recalc_idle(local);
1993
1994 return 0;
1995 }
1996
1997 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1998 struct net_device *dev,
1999 u64 cookie)
2000 {
2001 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2002 struct ieee80211_local *local = sdata->local;
2003
2004 if (local->ops->cancel_remain_on_channel) {
2005 int ret;
2006
2007 mutex_lock(&local->mtx);
2008 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
2009 mutex_unlock(&local->mtx);
2010
2011 return ret;
2012 }
2013
2014 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
2015 }
2016
2017 static enum work_done_result
2018 ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
2019 {
2020 /*
2021 * Use the data embedded in the work struct for reporting
2022 * here so if the driver mangled the SKB before dropping
2023 * it (which is the only way we really should get here)
2024 * then we don't report mangled data.
2025 *
2026 * If there was no wait time, then by the time we get here
2027 * the driver will likely not have reported the status yet,
2028 * so in that case userspace will have to deal with it.
2029 */
2030
2031 if (wk->offchan_tx.wait && !wk->offchan_tx.status)
2032 cfg80211_mgmt_tx_status(wk->sdata->dev,
2033 (unsigned long) wk->offchan_tx.frame,
2034 wk->ie, wk->ie_len, false, GFP_KERNEL);
2035
2036 return WORK_DONE_DESTROY;
2037 }
2038
2039 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
2040 struct ieee80211_channel *chan, bool offchan,
2041 enum nl80211_channel_type channel_type,
2042 bool channel_type_valid, unsigned int wait,
2043 const u8 *buf, size_t len, bool no_cck,
2044 bool dont_wait_for_ack, u64 *cookie)
2045 {
2046 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2047 struct ieee80211_local *local = sdata->local;
2048 struct sk_buff *skb;
2049 struct sta_info *sta;
2050 struct ieee80211_work *wk;
2051 const struct ieee80211_mgmt *mgmt = (void *)buf;
2052 u32 flags;
2053 bool is_offchan = false;
2054
2055 if (dont_wait_for_ack)
2056 flags = IEEE80211_TX_CTL_NO_ACK;
2057 else
2058 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
2059 IEEE80211_TX_CTL_REQ_TX_STATUS;
2060
2061 /* Check that we are on the requested channel for transmission */
2062 if (chan != local->tmp_channel &&
2063 chan != local->oper_channel)
2064 is_offchan = true;
2065 if (channel_type_valid &&
2066 (channel_type != local->tmp_channel_type &&
2067 channel_type != local->_oper_channel_type))
2068 is_offchan = true;
2069
2070 if (chan == local->hw_roc_channel) {
2071 /* TODO: check channel type? */
2072 is_offchan = false;
2073 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
2074 }
2075
2076 if (no_cck)
2077 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
2078
2079 if (is_offchan && !offchan)
2080 return -EBUSY;
2081
2082 switch (sdata->vif.type) {
2083 case NL80211_IFTYPE_ADHOC:
2084 case NL80211_IFTYPE_AP:
2085 case NL80211_IFTYPE_AP_VLAN:
2086 case NL80211_IFTYPE_P2P_GO:
2087 case NL80211_IFTYPE_MESH_POINT:
2088 if (!ieee80211_is_action(mgmt->frame_control) ||
2089 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
2090 break;
2091 rcu_read_lock();
2092 sta = sta_info_get(sdata, mgmt->da);
2093 rcu_read_unlock();
2094 if (!sta)
2095 return -ENOLINK;
2096 break;
2097 case NL80211_IFTYPE_STATION:
2098 case NL80211_IFTYPE_P2P_CLIENT:
2099 break;
2100 default:
2101 return -EOPNOTSUPP;
2102 }
2103
2104 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
2105 if (!skb)
2106 return -ENOMEM;
2107 skb_reserve(skb, local->hw.extra_tx_headroom);
2108
2109 memcpy(skb_put(skb, len), buf, len);
2110
2111 IEEE80211_SKB_CB(skb)->flags = flags;
2112
2113 skb->dev = sdata->dev;
2114
2115 *cookie = (unsigned long) skb;
2116
2117 if (is_offchan && local->ops->remain_on_channel) {
2118 unsigned int duration;
2119 int ret;
2120
2121 mutex_lock(&local->mtx);
2122 /*
2123 * If the duration is zero, then the driver
2124 * wouldn't actually do anything. Set it to
2125 * 100 for now.
2126 *
2127 * TODO: cancel the off-channel operation
2128 * when we get the SKB's TX status and
2129 * the wait time was zero before.
2130 */
2131 duration = 100;
2132 if (wait)
2133 duration = wait;
2134 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
2135 channel_type,
2136 duration, cookie);
2137 if (ret) {
2138 kfree_skb(skb);
2139 mutex_unlock(&local->mtx);
2140 return ret;
2141 }
2142
2143 local->hw_roc_for_tx = true;
2144 local->hw_roc_duration = wait;
2145
2146 /*
2147 * queue up frame for transmission after
2148 * ieee80211_ready_on_channel call
2149 */
2150
2151 /* modify cookie to prevent API mismatches */
2152 *cookie ^= 2;
2153 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
2154 local->hw_roc_skb = skb;
2155 local->hw_roc_skb_for_status = skb;
2156 mutex_unlock(&local->mtx);
2157
2158 return 0;
2159 }
2160
2161 /*
2162 * Can transmit right away if the channel was the
2163 * right one and there's no wait involved... If a
2164 * wait is involved, we might otherwise not be on
2165 * the right channel for long enough!
2166 */
2167 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
2168 ieee80211_tx_skb(sdata, skb);
2169 return 0;
2170 }
2171
2172 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
2173 if (!wk) {
2174 kfree_skb(skb);
2175 return -ENOMEM;
2176 }
2177
2178 wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
2179 wk->chan = chan;
2180 wk->chan_type = channel_type;
2181 wk->sdata = sdata;
2182 wk->done = ieee80211_offchan_tx_done;
2183 wk->offchan_tx.frame = skb;
2184 wk->offchan_tx.wait = wait;
2185 wk->ie_len = len;
2186 memcpy(wk->ie, buf, len);
2187
2188 ieee80211_add_work(wk);
2189 return 0;
2190 }
2191
2192 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2193 struct net_device *dev,
2194 u64 cookie)
2195 {
2196 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2197 struct ieee80211_local *local = sdata->local;
2198 struct ieee80211_work *wk;
2199 int ret = -ENOENT;
2200
2201 mutex_lock(&local->mtx);
2202
2203 if (local->ops->cancel_remain_on_channel) {
2204 cookie ^= 2;
2205 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
2206
2207 if (ret == 0) {
2208 kfree_skb(local->hw_roc_skb);
2209 local->hw_roc_skb = NULL;
2210 local->hw_roc_skb_for_status = NULL;
2211 }
2212
2213 mutex_unlock(&local->mtx);
2214
2215 return ret;
2216 }
2217
2218 list_for_each_entry(wk, &local->work_list, list) {
2219 if (wk->sdata != sdata)
2220 continue;
2221
2222 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
2223 continue;
2224
2225 if (cookie != (unsigned long) wk->offchan_tx.frame)
2226 continue;
2227
2228 wk->timeout = jiffies;
2229
2230 ieee80211_queue_work(&local->hw, &local->work_work);
2231 ret = 0;
2232 break;
2233 }
2234 mutex_unlock(&local->mtx);
2235
2236 return ret;
2237 }
2238
2239 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2240 struct net_device *dev,
2241 u16 frame_type, bool reg)
2242 {
2243 struct ieee80211_local *local = wiphy_priv(wiphy);
2244
2245 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
2246 return;
2247
2248 if (reg)
2249 local->probe_req_reg++;
2250 else
2251 local->probe_req_reg--;
2252
2253 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2254 }
2255
2256 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2257 {
2258 struct ieee80211_local *local = wiphy_priv(wiphy);
2259
2260 if (local->started)
2261 return -EOPNOTSUPP;
2262
2263 return drv_set_antenna(local, tx_ant, rx_ant);
2264 }
2265
2266 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2267 {
2268 struct ieee80211_local *local = wiphy_priv(wiphy);
2269
2270 return drv_get_antenna(local, tx_ant, rx_ant);
2271 }
2272
2273 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2274 {
2275 struct ieee80211_local *local = wiphy_priv(wiphy);
2276
2277 return drv_set_ringparam(local, tx, rx);
2278 }
2279
2280 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2281 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2282 {
2283 struct ieee80211_local *local = wiphy_priv(wiphy);
2284
2285 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2286 }
2287
2288 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2289 struct net_device *dev,
2290 struct cfg80211_gtk_rekey_data *data)
2291 {
2292 struct ieee80211_local *local = wiphy_priv(wiphy);
2293 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2294
2295 if (!local->ops->set_rekey_data)
2296 return -EOPNOTSUPP;
2297
2298 drv_set_rekey_data(local, sdata, data);
2299
2300 return 0;
2301 }
2302
2303 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
2304 {
2305 u8 *pos = (void *)skb_put(skb, 7);
2306
2307 *pos++ = WLAN_EID_EXT_CAPABILITY;
2308 *pos++ = 5; /* len */
2309 *pos++ = 0x0;
2310 *pos++ = 0x0;
2311 *pos++ = 0x0;
2312 *pos++ = 0x0;
2313 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
2314 }
2315
2316 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
2317 {
2318 struct ieee80211_local *local = sdata->local;
2319 u16 capab;
2320
2321 capab = 0;
2322 if (local->oper_channel->band != IEEE80211_BAND_2GHZ)
2323 return capab;
2324
2325 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
2326 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
2327 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
2328 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
2329
2330 return capab;
2331 }
2332
2333 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
2334 u8 *peer, u8 *bssid)
2335 {
2336 struct ieee80211_tdls_lnkie *lnkid;
2337
2338 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
2339
2340 lnkid->ie_type = WLAN_EID_LINK_ID;
2341 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
2342
2343 memcpy(lnkid->bssid, bssid, ETH_ALEN);
2344 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
2345 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
2346 }
2347
2348 static int
2349 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
2350 u8 *peer, u8 action_code, u8 dialog_token,
2351 u16 status_code, struct sk_buff *skb)
2352 {
2353 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2354 struct ieee80211_tdls_data *tf;
2355
2356 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
2357
2358 memcpy(tf->da, peer, ETH_ALEN);
2359 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
2360 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
2361 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
2362
2363 switch (action_code) {
2364 case WLAN_TDLS_SETUP_REQUEST:
2365 tf->category = WLAN_CATEGORY_TDLS;
2366 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
2367
2368 skb_put(skb, sizeof(tf->u.setup_req));
2369 tf->u.setup_req.dialog_token = dialog_token;
2370 tf->u.setup_req.capability =
2371 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2372
2373 ieee80211_add_srates_ie(&sdata->vif, skb);
2374 ieee80211_add_ext_srates_ie(&sdata->vif, skb);
2375 ieee80211_tdls_add_ext_capab(skb);
2376 break;
2377 case WLAN_TDLS_SETUP_RESPONSE:
2378 tf->category = WLAN_CATEGORY_TDLS;
2379 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
2380
2381 skb_put(skb, sizeof(tf->u.setup_resp));
2382 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
2383 tf->u.setup_resp.dialog_token = dialog_token;
2384 tf->u.setup_resp.capability =
2385 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2386
2387 ieee80211_add_srates_ie(&sdata->vif, skb);
2388 ieee80211_add_ext_srates_ie(&sdata->vif, skb);
2389 ieee80211_tdls_add_ext_capab(skb);
2390 break;
2391 case WLAN_TDLS_SETUP_CONFIRM:
2392 tf->category = WLAN_CATEGORY_TDLS;
2393 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
2394
2395 skb_put(skb, sizeof(tf->u.setup_cfm));
2396 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
2397 tf->u.setup_cfm.dialog_token = dialog_token;
2398 break;
2399 case WLAN_TDLS_TEARDOWN:
2400 tf->category = WLAN_CATEGORY_TDLS;
2401 tf->action_code = WLAN_TDLS_TEARDOWN;
2402
2403 skb_put(skb, sizeof(tf->u.teardown));
2404 tf->u.teardown.reason_code = cpu_to_le16(status_code);
2405 break;
2406 case WLAN_TDLS_DISCOVERY_REQUEST:
2407 tf->category = WLAN_CATEGORY_TDLS;
2408 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
2409
2410 skb_put(skb, sizeof(tf->u.discover_req));
2411 tf->u.discover_req.dialog_token = dialog_token;
2412 break;
2413 default:
2414 return -EINVAL;
2415 }
2416
2417 return 0;
2418 }
2419
2420 static int
2421 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
2422 u8 *peer, u8 action_code, u8 dialog_token,
2423 u16 status_code, struct sk_buff *skb)
2424 {
2425 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2426 struct ieee80211_mgmt *mgmt;
2427
2428 mgmt = (void *)skb_put(skb, 24);
2429 memset(mgmt, 0, 24);
2430 memcpy(mgmt->da, peer, ETH_ALEN);
2431 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
2432 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
2433
2434 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2435 IEEE80211_STYPE_ACTION);
2436
2437 switch (action_code) {
2438 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2439 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
2440 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
2441 mgmt->u.action.u.tdls_discover_resp.action_code =
2442 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
2443 mgmt->u.action.u.tdls_discover_resp.dialog_token =
2444 dialog_token;
2445 mgmt->u.action.u.tdls_discover_resp.capability =
2446 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2447
2448 ieee80211_add_srates_ie(&sdata->vif, skb);
2449 ieee80211_add_ext_srates_ie(&sdata->vif, skb);
2450 ieee80211_tdls_add_ext_capab(skb);
2451 break;
2452 default:
2453 return -EINVAL;
2454 }
2455
2456 return 0;
2457 }
2458
2459 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2460 u8 *peer, u8 action_code, u8 dialog_token,
2461 u16 status_code, const u8 *extra_ies,
2462 size_t extra_ies_len)
2463 {
2464 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2465 struct ieee80211_local *local = sdata->local;
2466 struct ieee80211_tx_info *info;
2467 struct sk_buff *skb = NULL;
2468 bool send_direct;
2469 int ret;
2470
2471 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2472 return -ENOTSUPP;
2473
2474 /* make sure we are in managed mode, and associated */
2475 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
2476 !sdata->u.mgd.associated)
2477 return -EINVAL;
2478
2479 #ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG
2480 printk(KERN_DEBUG "TDLS mgmt action %d peer %pM\n", action_code, peer);
2481 #endif
2482
2483 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
2484 max(sizeof(struct ieee80211_mgmt),
2485 sizeof(struct ieee80211_tdls_data)) +
2486 50 + /* supported rates */
2487 7 + /* ext capab */
2488 extra_ies_len +
2489 sizeof(struct ieee80211_tdls_lnkie));
2490 if (!skb)
2491 return -ENOMEM;
2492
2493 info = IEEE80211_SKB_CB(skb);
2494 skb_reserve(skb, local->hw.extra_tx_headroom);
2495
2496 switch (action_code) {
2497 case WLAN_TDLS_SETUP_REQUEST:
2498 case WLAN_TDLS_SETUP_RESPONSE:
2499 case WLAN_TDLS_SETUP_CONFIRM:
2500 case WLAN_TDLS_TEARDOWN:
2501 case WLAN_TDLS_DISCOVERY_REQUEST:
2502 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
2503 action_code, dialog_token,
2504 status_code, skb);
2505 send_direct = false;
2506 break;
2507 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2508 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
2509 dialog_token, status_code,
2510 skb);
2511 send_direct = true;
2512 break;
2513 default:
2514 ret = -ENOTSUPP;
2515 break;
2516 }
2517
2518 if (ret < 0)
2519 goto fail;
2520
2521 if (extra_ies_len)
2522 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
2523
2524 /* the TDLS link IE is always added last */
2525 switch (action_code) {
2526 case WLAN_TDLS_SETUP_REQUEST:
2527 case WLAN_TDLS_SETUP_CONFIRM:
2528 case WLAN_TDLS_TEARDOWN:
2529 case WLAN_TDLS_DISCOVERY_REQUEST:
2530 /* we are the initiator */
2531 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
2532 sdata->u.mgd.bssid);
2533 break;
2534 case WLAN_TDLS_SETUP_RESPONSE:
2535 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2536 /* we are the responder */
2537 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
2538 sdata->u.mgd.bssid);
2539 break;
2540 default:
2541 ret = -ENOTSUPP;
2542 goto fail;
2543 }
2544
2545 if (send_direct) {
2546 ieee80211_tx_skb(sdata, skb);
2547 return 0;
2548 }
2549
2550 /*
2551 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
2552 * we should default to AC_VI.
2553 */
2554 switch (action_code) {
2555 case WLAN_TDLS_SETUP_REQUEST:
2556 case WLAN_TDLS_SETUP_RESPONSE:
2557 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
2558 skb->priority = 2;
2559 break;
2560 default:
2561 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
2562 skb->priority = 5;
2563 break;
2564 }
2565
2566 /* disable bottom halves when entering the Tx path */
2567 local_bh_disable();
2568 ret = ieee80211_subif_start_xmit(skb, dev);
2569 local_bh_enable();
2570
2571 return ret;
2572
2573 fail:
2574 dev_kfree_skb(skb);
2575 return ret;
2576 }
2577
2578 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2579 u8 *peer, enum nl80211_tdls_operation oper)
2580 {
2581 struct sta_info *sta;
2582 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2583
2584 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2585 return -ENOTSUPP;
2586
2587 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2588 return -EINVAL;
2589
2590 #ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG
2591 printk(KERN_DEBUG "TDLS oper %d peer %pM\n", oper, peer);
2592 #endif
2593
2594 switch (oper) {
2595 case NL80211_TDLS_ENABLE_LINK:
2596 rcu_read_lock();
2597 sta = sta_info_get(sdata, peer);
2598 if (!sta) {
2599 rcu_read_unlock();
2600 return -ENOLINK;
2601 }
2602
2603 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
2604 rcu_read_unlock();
2605 break;
2606 case NL80211_TDLS_DISABLE_LINK:
2607 return sta_info_destroy_addr(sdata, peer);
2608 case NL80211_TDLS_TEARDOWN:
2609 case NL80211_TDLS_SETUP:
2610 case NL80211_TDLS_DISCOVERY_REQ:
2611 /* We don't support in-driver setup/teardown/discovery */
2612 return -ENOTSUPP;
2613 default:
2614 return -ENOTSUPP;
2615 }
2616
2617 return 0;
2618 }
2619
2620 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
2621 const u8 *peer, u64 *cookie)
2622 {
2623 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2624 struct ieee80211_local *local = sdata->local;
2625 struct ieee80211_qos_hdr *nullfunc;
2626 struct sk_buff *skb;
2627 int size = sizeof(*nullfunc);
2628 __le16 fc;
2629 bool qos;
2630 struct ieee80211_tx_info *info;
2631 struct sta_info *sta;
2632
2633 rcu_read_lock();
2634 sta = sta_info_get(sdata, peer);
2635 if (sta) {
2636 qos = test_sta_flag(sta, WLAN_STA_WME);
2637 rcu_read_unlock();
2638 } else {
2639 rcu_read_unlock();
2640 return -ENOLINK;
2641 }
2642
2643 if (qos) {
2644 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
2645 IEEE80211_STYPE_QOS_NULLFUNC |
2646 IEEE80211_FCTL_FROMDS);
2647 } else {
2648 size -= 2;
2649 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
2650 IEEE80211_STYPE_NULLFUNC |
2651 IEEE80211_FCTL_FROMDS);
2652 }
2653
2654 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
2655 if (!skb)
2656 return -ENOMEM;
2657
2658 skb->dev = dev;
2659
2660 skb_reserve(skb, local->hw.extra_tx_headroom);
2661
2662 nullfunc = (void *) skb_put(skb, size);
2663 nullfunc->frame_control = fc;
2664 nullfunc->duration_id = 0;
2665 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
2666 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
2667 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
2668 nullfunc->seq_ctrl = 0;
2669
2670 info = IEEE80211_SKB_CB(skb);
2671
2672 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
2673 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
2674
2675 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
2676 skb->priority = 7;
2677 if (qos)
2678 nullfunc->qos_ctrl = cpu_to_le16(7);
2679
2680 local_bh_disable();
2681 ieee80211_xmit(sdata, skb);
2682 local_bh_enable();
2683
2684 *cookie = (unsigned long) skb;
2685 return 0;
2686 }
2687
2688 static struct ieee80211_channel *
2689 ieee80211_wiphy_get_channel(struct wiphy *wiphy)
2690 {
2691 struct ieee80211_local *local = wiphy_priv(wiphy);
2692
2693 return local->oper_channel;
2694 }
2695
2696 struct cfg80211_ops mac80211_config_ops = {
2697 .add_virtual_intf = ieee80211_add_iface,
2698 .del_virtual_intf = ieee80211_del_iface,
2699 .change_virtual_intf = ieee80211_change_iface,
2700 .add_key = ieee80211_add_key,
2701 .del_key = ieee80211_del_key,
2702 .get_key = ieee80211_get_key,
2703 .set_default_key = ieee80211_config_default_key,
2704 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
2705 .add_beacon = ieee80211_add_beacon,
2706 .set_beacon = ieee80211_set_beacon,
2707 .del_beacon = ieee80211_del_beacon,
2708 .add_station = ieee80211_add_station,
2709 .del_station = ieee80211_del_station,
2710 .change_station = ieee80211_change_station,
2711 .get_station = ieee80211_get_station,
2712 .dump_station = ieee80211_dump_station,
2713 .dump_survey = ieee80211_dump_survey,
2714 #ifdef CONFIG_MAC80211_MESH
2715 .add_mpath = ieee80211_add_mpath,
2716 .del_mpath = ieee80211_del_mpath,
2717 .change_mpath = ieee80211_change_mpath,
2718 .get_mpath = ieee80211_get_mpath,
2719 .dump_mpath = ieee80211_dump_mpath,
2720 .update_mesh_config = ieee80211_update_mesh_config,
2721 .get_mesh_config = ieee80211_get_mesh_config,
2722 .join_mesh = ieee80211_join_mesh,
2723 .leave_mesh = ieee80211_leave_mesh,
2724 #endif
2725 .change_bss = ieee80211_change_bss,
2726 .set_txq_params = ieee80211_set_txq_params,
2727 .set_channel = ieee80211_set_channel,
2728 .suspend = ieee80211_suspend,
2729 .resume = ieee80211_resume,
2730 .scan = ieee80211_scan,
2731 .sched_scan_start = ieee80211_sched_scan_start,
2732 .sched_scan_stop = ieee80211_sched_scan_stop,
2733 .auth = ieee80211_auth,
2734 .assoc = ieee80211_assoc,
2735 .deauth = ieee80211_deauth,
2736 .disassoc = ieee80211_disassoc,
2737 .join_ibss = ieee80211_join_ibss,
2738 .leave_ibss = ieee80211_leave_ibss,
2739 .set_wiphy_params = ieee80211_set_wiphy_params,
2740 .set_tx_power = ieee80211_set_tx_power,
2741 .get_tx_power = ieee80211_get_tx_power,
2742 .set_wds_peer = ieee80211_set_wds_peer,
2743 .rfkill_poll = ieee80211_rfkill_poll,
2744 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
2745 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
2746 .set_power_mgmt = ieee80211_set_power_mgmt,
2747 .set_bitrate_mask = ieee80211_set_bitrate_mask,
2748 .remain_on_channel = ieee80211_remain_on_channel,
2749 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2750 .mgmt_tx = ieee80211_mgmt_tx,
2751 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
2752 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
2753 .mgmt_frame_register = ieee80211_mgmt_frame_register,
2754 .set_antenna = ieee80211_set_antenna,
2755 .get_antenna = ieee80211_get_antenna,
2756 .set_ringparam = ieee80211_set_ringparam,
2757 .get_ringparam = ieee80211_get_ringparam,
2758 .set_rekey_data = ieee80211_set_rekey_data,
2759 .tdls_oper = ieee80211_tdls_oper,
2760 .tdls_mgmt = ieee80211_tdls_mgmt,
2761 .probe_client = ieee80211_probe_client,
2762 .get_channel = ieee80211_wiphy_get_channel,
2763 .set_noack_map = ieee80211_set_noack_map,
2764 };
Linux kernel - Deliverables
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