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Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
[linux/fpc-iii.git] / net / mac80211 / cfg.c
blob516fbc96feff11831a9ad308541e6bdc16a7089d
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 wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
28 {
29 struct ieee80211_local *local = wiphy_priv(wiphy);
30 struct wireless_dev *wdev;
31 struct ieee80211_sub_if_data *sdata;
32 int err;
33
34 err = ieee80211_if_add(local, name, &wdev, type, params);
35 if (err)
36 return ERR_PTR(err);
37
38 if (type == NL80211_IFTYPE_MONITOR && flags) {
39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
40 sdata->u.mntr_flags = *flags;
41 }
42
43 return wdev;
44 }
45
46 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
47 {
48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
49
50 return 0;
51 }
52
53 static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
57 {
58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
59 int ret;
60
61 ret = ieee80211_if_change_type(sdata, type);
62 if (ret)
63 return ret;
64
65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
74
75 if (ieee80211_sdata_running(sdata)) {
76 /*
77 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
78 * changed while the interface is up.
79 * Else we would need to add a lot of cruft
80 * to update everything:
81 * cooked_mntrs, monitor and all fif_* counters
82 * reconfigure hardware
83 */
84 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
85 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
86 return -EBUSY;
87
88 ieee80211_adjust_monitor_flags(sdata, -1);
89 sdata->u.mntr_flags = *flags;
90 ieee80211_adjust_monitor_flags(sdata, 1);
91
92 ieee80211_configure_filter(local);
93 } else {
94 /*
95 * Because the interface is down, ieee80211_do_stop
96 * and ieee80211_do_open take care of "everything"
97 * mentioned in the comment above.
98 */
99 sdata->u.mntr_flags = *flags;
100 }
101 }
102
103 return 0;
104 }
105
106 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
107 struct wireless_dev *wdev)
108 {
109 return ieee80211_do_open(wdev, true);
110 }
111
112 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
113 struct wireless_dev *wdev)
114 {
115 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
116 }
117
118 static int ieee80211_set_noack_map(struct wiphy *wiphy,
119 struct net_device *dev,
120 u16 noack_map)
121 {
122 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
123
124 sdata->noack_map = noack_map;
125 return 0;
126 }
127
128 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
129 u8 key_idx, bool pairwise, const u8 *mac_addr,
130 struct key_params *params)
131 {
132 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
133 struct sta_info *sta = NULL;
134 struct ieee80211_key *key;
135 int err;
136
137 if (!ieee80211_sdata_running(sdata))
138 return -ENETDOWN;
139
140 /* reject WEP and TKIP keys if WEP failed to initialize */
141 switch (params->cipher) {
142 case WLAN_CIPHER_SUITE_WEP40:
143 case WLAN_CIPHER_SUITE_TKIP:
144 case WLAN_CIPHER_SUITE_WEP104:
145 if (IS_ERR(sdata->local->wep_tx_tfm))
146 return -EINVAL;
147 break;
148 default:
149 break;
150 }
151
152 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
153 params->key, params->seq_len, params->seq);
154 if (IS_ERR(key))
155 return PTR_ERR(key);
156
157 if (pairwise)
158 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
159
160 mutex_lock(&sdata->local->sta_mtx);
161
162 if (mac_addr) {
163 if (ieee80211_vif_is_mesh(&sdata->vif))
164 sta = sta_info_get(sdata, mac_addr);
165 else
166 sta = sta_info_get_bss(sdata, mac_addr);
167 /*
168 * The ASSOC test makes sure the driver is ready to
169 * receive the key. When wpa_supplicant has roamed
170 * using FT, it attempts to set the key before
171 * association has completed, this rejects that attempt
172 * so it will set the key again after assocation.
173 *
174 * TODO: accept the key if we have a station entry and
175 * add it to the device after the station.
176 */
177 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
178 ieee80211_key_free(sdata->local, key);
179 err = -ENOENT;
180 goto out_unlock;
181 }
182 }
183
184 switch (sdata->vif.type) {
185 case NL80211_IFTYPE_STATION:
186 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
187 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
188 break;
189 case NL80211_IFTYPE_AP:
190 case NL80211_IFTYPE_AP_VLAN:
191 /* Keys without a station are used for TX only */
192 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
193 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
194 break;
195 case NL80211_IFTYPE_ADHOC:
196 /* no MFP (yet) */
197 break;
198 case NL80211_IFTYPE_MESH_POINT:
199 #ifdef CONFIG_MAC80211_MESH
200 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
201 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
202 break;
203 #endif
204 case NL80211_IFTYPE_WDS:
205 case NL80211_IFTYPE_MONITOR:
206 case NL80211_IFTYPE_P2P_DEVICE:
207 case NL80211_IFTYPE_UNSPECIFIED:
208 case NUM_NL80211_IFTYPES:
209 case NL80211_IFTYPE_P2P_CLIENT:
210 case NL80211_IFTYPE_P2P_GO:
211 /* shouldn't happen */
212 WARN_ON_ONCE(1);
213 break;
214 }
215
216 err = ieee80211_key_link(key, sdata, sta);
217 if (err)
218 ieee80211_key_free(sdata->local, key);
219
220 out_unlock:
221 mutex_unlock(&sdata->local->sta_mtx);
222
223 return err;
224 }
225
226 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
227 u8 key_idx, bool pairwise, const u8 *mac_addr)
228 {
229 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
230 struct ieee80211_local *local = sdata->local;
231 struct sta_info *sta;
232 struct ieee80211_key *key = NULL;
233 int ret;
234
235 mutex_lock(&local->sta_mtx);
236 mutex_lock(&local->key_mtx);
237
238 if (mac_addr) {
239 ret = -ENOENT;
240
241 sta = sta_info_get_bss(sdata, mac_addr);
242 if (!sta)
243 goto out_unlock;
244
245 if (pairwise)
246 key = key_mtx_dereference(local, sta->ptk);
247 else
248 key = key_mtx_dereference(local, sta->gtk[key_idx]);
249 } else
250 key = key_mtx_dereference(local, sdata->keys[key_idx]);
251
252 if (!key) {
253 ret = -ENOENT;
254 goto out_unlock;
255 }
256
257 __ieee80211_key_free(key);
258
259 ret = 0;
260 out_unlock:
261 mutex_unlock(&local->key_mtx);
262 mutex_unlock(&local->sta_mtx);
263
264 return ret;
265 }
266
267 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
268 u8 key_idx, bool pairwise, const u8 *mac_addr,
269 void *cookie,
270 void (*callback)(void *cookie,
271 struct key_params *params))
272 {
273 struct ieee80211_sub_if_data *sdata;
274 struct sta_info *sta = NULL;
275 u8 seq[6] = {0};
276 struct key_params params;
277 struct ieee80211_key *key = NULL;
278 u64 pn64;
279 u32 iv32;
280 u16 iv16;
281 int err = -ENOENT;
282
283 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
284
285 rcu_read_lock();
286
287 if (mac_addr) {
288 sta = sta_info_get_bss(sdata, mac_addr);
289 if (!sta)
290 goto out;
291
292 if (pairwise)
293 key = rcu_dereference(sta->ptk);
294 else if (key_idx < NUM_DEFAULT_KEYS)
295 key = rcu_dereference(sta->gtk[key_idx]);
296 } else
297 key = rcu_dereference(sdata->keys[key_idx]);
298
299 if (!key)
300 goto out;
301
302 memset(&params, 0, sizeof(params));
303
304 params.cipher = key->conf.cipher;
305
306 switch (key->conf.cipher) {
307 case WLAN_CIPHER_SUITE_TKIP:
308 iv32 = key->u.tkip.tx.iv32;
309 iv16 = key->u.tkip.tx.iv16;
310
311 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
312 drv_get_tkip_seq(sdata->local,
313 key->conf.hw_key_idx,
314 &iv32, &iv16);
315
316 seq[0] = iv16 & 0xff;
317 seq[1] = (iv16 >> 8) & 0xff;
318 seq[2] = iv32 & 0xff;
319 seq[3] = (iv32 >> 8) & 0xff;
320 seq[4] = (iv32 >> 16) & 0xff;
321 seq[5] = (iv32 >> 24) & 0xff;
322 params.seq = seq;
323 params.seq_len = 6;
324 break;
325 case WLAN_CIPHER_SUITE_CCMP:
326 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
327 seq[0] = pn64;
328 seq[1] = pn64 >> 8;
329 seq[2] = pn64 >> 16;
330 seq[3] = pn64 >> 24;
331 seq[4] = pn64 >> 32;
332 seq[5] = pn64 >> 40;
333 params.seq = seq;
334 params.seq_len = 6;
335 break;
336 case WLAN_CIPHER_SUITE_AES_CMAC:
337 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
338 seq[0] = pn64;
339 seq[1] = pn64 >> 8;
340 seq[2] = pn64 >> 16;
341 seq[3] = pn64 >> 24;
342 seq[4] = pn64 >> 32;
343 seq[5] = pn64 >> 40;
344 params.seq = seq;
345 params.seq_len = 6;
346 break;
347 }
348
349 params.key = key->conf.key;
350 params.key_len = key->conf.keylen;
351
352 callback(cookie, &params);
353 err = 0;
354
355 out:
356 rcu_read_unlock();
357 return err;
358 }
359
360 static int ieee80211_config_default_key(struct wiphy *wiphy,
361 struct net_device *dev,
362 u8 key_idx, bool uni,
363 bool multi)
364 {
365 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
366
367 ieee80211_set_default_key(sdata, key_idx, uni, multi);
368
369 return 0;
370 }
371
372 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
373 struct net_device *dev,
374 u8 key_idx)
375 {
376 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
377
378 ieee80211_set_default_mgmt_key(sdata, key_idx);
379
380 return 0;
381 }
382
383 void sta_set_rate_info_tx(struct sta_info *sta,
384 const struct ieee80211_tx_rate *rate,
385 struct rate_info *rinfo)
386 {
387 rinfo->flags = 0;
388 if (rate->flags & IEEE80211_TX_RC_MCS) {
389 rinfo->flags |= RATE_INFO_FLAGS_MCS;
390 rinfo->mcs = rate->idx;
391 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
392 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
393 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
394 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
395 } else {
396 struct ieee80211_supported_band *sband;
397 sband = sta->local->hw.wiphy->bands[
398 ieee80211_get_sdata_band(sta->sdata)];
399 rinfo->legacy = sband->bitrates[rate->idx].bitrate;
400 }
401 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
402 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
403 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
404 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
405 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
406 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
407 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
408 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
409 }
410
411 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
412 {
413 rinfo->flags = 0;
414
415 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
416 rinfo->flags |= RATE_INFO_FLAGS_MCS;
417 rinfo->mcs = sta->last_rx_rate_idx;
418 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
419 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
420 rinfo->nss = sta->last_rx_rate_vht_nss;
421 rinfo->mcs = sta->last_rx_rate_idx;
422 } else {
423 struct ieee80211_supported_band *sband;
424
425 sband = sta->local->hw.wiphy->bands[
426 ieee80211_get_sdata_band(sta->sdata)];
427 rinfo->legacy =
428 sband->bitrates[sta->last_rx_rate_idx].bitrate;
429 }
430
431 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
432 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
433 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
434 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
435 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
436 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
437 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
438 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
439 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
440 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
441 }
442
443 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
444 {
445 struct ieee80211_sub_if_data *sdata = sta->sdata;
446 struct ieee80211_local *local = sdata->local;
447 struct timespec uptime;
448
449 sinfo->generation = sdata->local->sta_generation;
450
451 sinfo->filled = STATION_INFO_INACTIVE_TIME |
452 STATION_INFO_RX_BYTES |
453 STATION_INFO_TX_BYTES |
454 STATION_INFO_RX_PACKETS |
455 STATION_INFO_TX_PACKETS |
456 STATION_INFO_TX_RETRIES |
457 STATION_INFO_TX_FAILED |
458 STATION_INFO_TX_BITRATE |
459 STATION_INFO_RX_BITRATE |
460 STATION_INFO_RX_DROP_MISC |
461 STATION_INFO_BSS_PARAM |
462 STATION_INFO_CONNECTED_TIME |
463 STATION_INFO_STA_FLAGS |
464 STATION_INFO_BEACON_LOSS_COUNT;
465
466 do_posix_clock_monotonic_gettime(&uptime);
467 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
468
469 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
470 sinfo->rx_bytes = sta->rx_bytes;
471 sinfo->tx_bytes = sta->tx_bytes;
472 sinfo->rx_packets = sta->rx_packets;
473 sinfo->tx_packets = sta->tx_packets;
474 sinfo->tx_retries = sta->tx_retry_count;
475 sinfo->tx_failed = sta->tx_retry_failed;
476 sinfo->rx_dropped_misc = sta->rx_dropped;
477 sinfo->beacon_loss_count = sta->beacon_loss_count;
478
479 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
480 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
481 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
482 if (!local->ops->get_rssi ||
483 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
484 sinfo->signal = (s8)sta->last_signal;
485 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
486 }
487
488 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
489 sta_set_rate_info_rx(sta, &sinfo->rxrate);
490
491 if (ieee80211_vif_is_mesh(&sdata->vif)) {
492 #ifdef CONFIG_MAC80211_MESH
493 sinfo->filled |= STATION_INFO_LLID |
494 STATION_INFO_PLID |
495 STATION_INFO_PLINK_STATE;
496
497 sinfo->llid = le16_to_cpu(sta->llid);
498 sinfo->plid = le16_to_cpu(sta->plid);
499 sinfo->plink_state = sta->plink_state;
500 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
501 sinfo->filled |= STATION_INFO_T_OFFSET;
502 sinfo->t_offset = sta->t_offset;
503 }
504 #endif
505 }
506
507 sinfo->bss_param.flags = 0;
508 if (sdata->vif.bss_conf.use_cts_prot)
509 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
510 if (sdata->vif.bss_conf.use_short_preamble)
511 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
512 if (sdata->vif.bss_conf.use_short_slot)
513 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
514 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
515 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
516
517 sinfo->sta_flags.set = 0;
518 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
519 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
520 BIT(NL80211_STA_FLAG_WME) |
521 BIT(NL80211_STA_FLAG_MFP) |
522 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
523 BIT(NL80211_STA_FLAG_TDLS_PEER);
524 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
525 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
526 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
527 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
528 if (test_sta_flag(sta, WLAN_STA_WME))
529 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
530 if (test_sta_flag(sta, WLAN_STA_MFP))
531 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
532 if (test_sta_flag(sta, WLAN_STA_AUTH))
533 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
534 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
535 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
536 }
537
538 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
539 "rx_packets", "rx_bytes", "wep_weak_iv_count",
540 "rx_duplicates", "rx_fragments", "rx_dropped",
541 "tx_packets", "tx_bytes", "tx_fragments",
542 "tx_filtered", "tx_retry_failed", "tx_retries",
543 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
544 "channel", "noise", "ch_time", "ch_time_busy",
545 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
546 };
547 #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
548
549 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
550 struct net_device *dev,
551 int sset)
552 {
553 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
554 int rv = 0;
555
556 if (sset == ETH_SS_STATS)
557 rv += STA_STATS_LEN;
558
559 rv += drv_get_et_sset_count(sdata, sset);
560
561 if (rv == 0)
562 return -EOPNOTSUPP;
563 return rv;
564 }
565
566 static void ieee80211_get_et_stats(struct wiphy *wiphy,
567 struct net_device *dev,
568 struct ethtool_stats *stats,
569 u64 *data)
570 {
571 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
572 struct ieee80211_chanctx_conf *chanctx_conf;
573 struct ieee80211_channel *channel;
574 struct sta_info *sta;
575 struct ieee80211_local *local = sdata->local;
576 struct station_info sinfo;
577 struct survey_info survey;
578 int i, q;
579 #define STA_STATS_SURVEY_LEN 7
580
581 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
582
583 #define ADD_STA_STATS(sta) \
584 do { \
585 data[i++] += sta->rx_packets; \
586 data[i++] += sta->rx_bytes; \
587 data[i++] += sta->wep_weak_iv_count; \
588 data[i++] += sta->num_duplicates; \
589 data[i++] += sta->rx_fragments; \
590 data[i++] += sta->rx_dropped; \
591 \
592 data[i++] += sta->tx_packets; \
593 data[i++] += sta->tx_bytes; \
594 data[i++] += sta->tx_fragments; \
595 data[i++] += sta->tx_filtered_count; \
596 data[i++] += sta->tx_retry_failed; \
597 data[i++] += sta->tx_retry_count; \
598 data[i++] += sta->beacon_loss_count; \
599 } while (0)
600
601 /* For Managed stations, find the single station based on BSSID
602 * and use that. For interface types, iterate through all available
603 * stations and add stats for any station that is assigned to this
604 * network device.
605 */
606
607 mutex_lock(&local->sta_mtx);
608
609 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
610 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
611
612 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
613 goto do_survey;
614
615 i = 0;
616 ADD_STA_STATS(sta);
617
618 data[i++] = sta->sta_state;
619
620 sinfo.filled = 0;
621 sta_set_sinfo(sta, &sinfo);
622
623 if (sinfo.filled & STATION_INFO_TX_BITRATE)
624 data[i] = 100000 *
625 cfg80211_calculate_bitrate(&sinfo.txrate);
626 i++;
627 if (sinfo.filled & STATION_INFO_RX_BITRATE)
628 data[i] = 100000 *
629 cfg80211_calculate_bitrate(&sinfo.rxrate);
630 i++;
631
632 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
633 data[i] = (u8)sinfo.signal_avg;
634 i++;
635 } else {
636 list_for_each_entry(sta, &local->sta_list, list) {
637 /* Make sure this station belongs to the proper dev */
638 if (sta->sdata->dev != dev)
639 continue;
640
641 i = 0;
642 ADD_STA_STATS(sta);
643 }
644 }
645
646 do_survey:
647 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
648 /* Get survey stats for current channel */
649 survey.filled = 0;
650
651 rcu_read_lock();
652 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
653 if (chanctx_conf)
654 channel = chanctx_conf->def.chan;
655 else
656 channel = NULL;
657 rcu_read_unlock();
658
659 if (channel) {
660 q = 0;
661 do {
662 survey.filled = 0;
663 if (drv_get_survey(local, q, &survey) != 0) {
664 survey.filled = 0;
665 break;
666 }
667 q++;
668 } while (channel != survey.channel);
669 }
670
671 if (survey.filled)
672 data[i++] = survey.channel->center_freq;
673 else
674 data[i++] = 0;
675 if (survey.filled & SURVEY_INFO_NOISE_DBM)
676 data[i++] = (u8)survey.noise;
677 else
678 data[i++] = -1LL;
679 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
680 data[i++] = survey.channel_time;
681 else
682 data[i++] = -1LL;
683 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
684 data[i++] = survey.channel_time_busy;
685 else
686 data[i++] = -1LL;
687 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
688 data[i++] = survey.channel_time_ext_busy;
689 else
690 data[i++] = -1LL;
691 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
692 data[i++] = survey.channel_time_rx;
693 else
694 data[i++] = -1LL;
695 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
696 data[i++] = survey.channel_time_tx;
697 else
698 data[i++] = -1LL;
699
700 mutex_unlock(&local->sta_mtx);
701
702 if (WARN_ON(i != STA_STATS_LEN))
703 return;
704
705 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
706 }
707
708 static void ieee80211_get_et_strings(struct wiphy *wiphy,
709 struct net_device *dev,
710 u32 sset, u8 *data)
711 {
712 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
713 int sz_sta_stats = 0;
714
715 if (sset == ETH_SS_STATS) {
716 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
717 memcpy(data, *ieee80211_gstrings_sta_stats, sz_sta_stats);
718 }
719 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
720 }
721
722 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
723 int idx, u8 *mac, struct station_info *sinfo)
724 {
725 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
726 struct ieee80211_local *local = sdata->local;
727 struct sta_info *sta;
728 int ret = -ENOENT;
729
730 mutex_lock(&local->sta_mtx);
731
732 sta = sta_info_get_by_idx(sdata, idx);
733 if (sta) {
734 ret = 0;
735 memcpy(mac, sta->sta.addr, ETH_ALEN);
736 sta_set_sinfo(sta, sinfo);
737 }
738
739 mutex_unlock(&local->sta_mtx);
740
741 return ret;
742 }
743
744 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
745 int idx, struct survey_info *survey)
746 {
747 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
748
749 return drv_get_survey(local, idx, survey);
750 }
751
752 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
753 u8 *mac, struct station_info *sinfo)
754 {
755 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
756 struct ieee80211_local *local = sdata->local;
757 struct sta_info *sta;
758 int ret = -ENOENT;
759
760 mutex_lock(&local->sta_mtx);
761
762 sta = sta_info_get_bss(sdata, mac);
763 if (sta) {
764 ret = 0;
765 sta_set_sinfo(sta, sinfo);
766 }
767
768 mutex_unlock(&local->sta_mtx);
769
770 return ret;
771 }
772
773 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
774 struct cfg80211_chan_def *chandef)
775 {
776 struct ieee80211_local *local = wiphy_priv(wiphy);
777 struct ieee80211_sub_if_data *sdata;
778 int ret = 0;
779
780 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
781 return 0;
782
783 mutex_lock(&local->iflist_mtx);
784 if (local->use_chanctx) {
785 sdata = rcu_dereference_protected(
786 local->monitor_sdata,
787 lockdep_is_held(&local->iflist_mtx));
788 if (sdata) {
789 ieee80211_vif_release_channel(sdata);
790 ret = ieee80211_vif_use_channel(sdata, chandef,
791 IEEE80211_CHANCTX_EXCLUSIVE);
792 }
793 } else if (local->open_count == local->monitors) {
794 local->_oper_channel = chandef->chan;
795 local->_oper_channel_type = cfg80211_get_chandef_type(chandef);
796 ieee80211_hw_config(local, 0);
797 }
798
799 if (ret == 0)
800 local->monitor_chandef = *chandef;
801 mutex_unlock(&local->iflist_mtx);
802
803 return ret;
804 }
805
806 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
807 const u8 *resp, size_t resp_len)
808 {
809 struct probe_resp *new, *old;
810
811 if (!resp || !resp_len)
812 return 1;
813
814 old = rtnl_dereference(sdata->u.ap.probe_resp);
815
816 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
817 if (!new)
818 return -ENOMEM;
819
820 new->len = resp_len;
821 memcpy(new->data, resp, resp_len);
822
823 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
824 if (old)
825 kfree_rcu(old, rcu_head);
826
827 return 0;
828 }
829
830 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
831 struct cfg80211_beacon_data *params)
832 {
833 struct beacon_data *new, *old;
834 int new_head_len, new_tail_len;
835 int size, err;
836 u32 changed = BSS_CHANGED_BEACON;
837
838 old = rtnl_dereference(sdata->u.ap.beacon);
839
840 /* Need to have a beacon head if we don't have one yet */
841 if (!params->head && !old)
842 return -EINVAL;
843
844 /* new or old head? */
845 if (params->head)
846 new_head_len = params->head_len;
847 else
848 new_head_len = old->head_len;
849
850 /* new or old tail? */
851 if (params->tail || !old)
852 /* params->tail_len will be zero for !params->tail */
853 new_tail_len = params->tail_len;
854 else
855 new_tail_len = old->tail_len;
856
857 size = sizeof(*new) + new_head_len + new_tail_len;
858
859 new = kzalloc(size, GFP_KERNEL);
860 if (!new)
861 return -ENOMEM;
862
863 /* start filling the new info now */
864
865 /*
866 * pointers go into the block we allocated,
867 * memory is | beacon_data | head | tail |
868 */
869 new->head = ((u8 *) new) + sizeof(*new);
870 new->tail = new->head + new_head_len;
871 new->head_len = new_head_len;
872 new->tail_len = new_tail_len;
873
874 /* copy in head */
875 if (params->head)
876 memcpy(new->head, params->head, new_head_len);
877 else
878 memcpy(new->head, old->head, new_head_len);
879
880 /* copy in optional tail */
881 if (params->tail)
882 memcpy(new->tail, params->tail, new_tail_len);
883 else
884 if (old)
885 memcpy(new->tail, old->tail, new_tail_len);
886
887 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
888 params->probe_resp_len);
889 if (err < 0)
890 return err;
891 if (err == 0)
892 changed |= BSS_CHANGED_AP_PROBE_RESP;
893
894 rcu_assign_pointer(sdata->u.ap.beacon, new);
895
896 if (old)
897 kfree_rcu(old, rcu_head);
898
899 return changed;
900 }
901
902 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
903 struct cfg80211_ap_settings *params)
904 {
905 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
906 struct beacon_data *old;
907 struct ieee80211_sub_if_data *vlan;
908 u32 changed = BSS_CHANGED_BEACON_INT |
909 BSS_CHANGED_BEACON_ENABLED |
910 BSS_CHANGED_BEACON |
911 BSS_CHANGED_SSID |
912 BSS_CHANGED_P2P_PS;
913 int err;
914
915 old = rtnl_dereference(sdata->u.ap.beacon);
916 if (old)
917 return -EALREADY;
918
919 /* TODO: make hostapd tell us what it wants */
920 sdata->smps_mode = IEEE80211_SMPS_OFF;
921 sdata->needed_rx_chains = sdata->local->rx_chains;
922
923 err = ieee80211_vif_use_channel(sdata, &params->chandef,
924 IEEE80211_CHANCTX_SHARED);
925 if (err)
926 return err;
927
928 /*
929 * Apply control port protocol, this allows us to
930 * not encrypt dynamic WEP control frames.
931 */
932 sdata->control_port_protocol = params->crypto.control_port_ethertype;
933 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
934 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
935 vlan->control_port_protocol =
936 params->crypto.control_port_ethertype;
937 vlan->control_port_no_encrypt =
938 params->crypto.control_port_no_encrypt;
939 }
940
941 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
942 sdata->vif.bss_conf.dtim_period = params->dtim_period;
943
944 sdata->vif.bss_conf.ssid_len = params->ssid_len;
945 if (params->ssid_len)
946 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
947 params->ssid_len);
948 sdata->vif.bss_conf.hidden_ssid =
949 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
950
951 sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
952 sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
953
954 err = ieee80211_assign_beacon(sdata, &params->beacon);
955 if (err < 0)
956 return err;
957 changed |= err;
958
959 err = drv_start_ap(sdata->local, sdata);
960 if (err) {
961 old = rtnl_dereference(sdata->u.ap.beacon);
962 if (old)
963 kfree_rcu(old, rcu_head);
964 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
965 return err;
966 }
967
968 ieee80211_bss_info_change_notify(sdata, changed);
969
970 netif_carrier_on(dev);
971 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
972 netif_carrier_on(vlan->dev);
973
974 return 0;
975 }
976
977 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
978 struct cfg80211_beacon_data *params)
979 {
980 struct ieee80211_sub_if_data *sdata;
981 struct beacon_data *old;
982 int err;
983
984 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
985
986 old = rtnl_dereference(sdata->u.ap.beacon);
987 if (!old)
988 return -ENOENT;
989
990 err = ieee80211_assign_beacon(sdata, params);
991 if (err < 0)
992 return err;
993 ieee80211_bss_info_change_notify(sdata, err);
994 return 0;
995 }
996
997 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
998 {
999 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1000 struct ieee80211_sub_if_data *vlan;
1001 struct ieee80211_local *local = sdata->local;
1002 struct beacon_data *old_beacon;
1003 struct probe_resp *old_probe_resp;
1004
1005 old_beacon = rtnl_dereference(sdata->u.ap.beacon);
1006 if (!old_beacon)
1007 return -ENOENT;
1008 old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp);
1009
1010 /* turn off carrier for this interface and dependent VLANs */
1011 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1012 netif_carrier_off(vlan->dev);
1013 netif_carrier_off(dev);
1014
1015 /* remove beacon and probe response */
1016 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1017 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1018 kfree_rcu(old_beacon, rcu_head);
1019 if (old_probe_resp)
1020 kfree_rcu(old_probe_resp, rcu_head);
1021
1022 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1023 sta_info_flush(local, vlan);
1024 sta_info_flush(local, sdata);
1025 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1026
1027 drv_stop_ap(sdata->local, sdata);
1028
1029 /* free all potentially still buffered bcast frames */
1030 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1031 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1032
1033 ieee80211_vif_release_channel(sdata);
1034
1035 return 0;
1036 }
1037
1038 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1039 struct iapp_layer2_update {
1040 u8 da[ETH_ALEN]; /* broadcast */
1041 u8 sa[ETH_ALEN]; /* STA addr */
1042 __be16 len; /* 6 */
1043 u8 dsap; /* 0 */
1044 u8 ssap; /* 0 */
1045 u8 control;
1046 u8 xid_info[3];
1047 } __packed;
1048
1049 static void ieee80211_send_layer2_update(struct sta_info *sta)
1050 {
1051 struct iapp_layer2_update *msg;
1052 struct sk_buff *skb;
1053
1054 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1055 * bridge devices */
1056
1057 skb = dev_alloc_skb(sizeof(*msg));
1058 if (!skb)
1059 return;
1060 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1061
1062 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1063 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1064
1065 eth_broadcast_addr(msg->da);
1066 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1067 msg->len = htons(6);
1068 msg->dsap = 0;
1069 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1070 msg->control = 0xaf; /* XID response lsb.1111F101.
1071 * F=0 (no poll command; unsolicited frame) */
1072 msg->xid_info[0] = 0x81; /* XID format identifier */
1073 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1074 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1075
1076 skb->dev = sta->sdata->dev;
1077 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1078 memset(skb->cb, 0, sizeof(skb->cb));
1079 netif_rx_ni(skb);
1080 }
1081
1082 static int sta_apply_parameters(struct ieee80211_local *local,
1083 struct sta_info *sta,
1084 struct station_parameters *params)
1085 {
1086 int ret = 0;
1087 u32 rates;
1088 int i, j;
1089 struct ieee80211_supported_band *sband;
1090 struct ieee80211_sub_if_data *sdata = sta->sdata;
1091 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1092 u32 mask, set;
1093
1094 sband = local->hw.wiphy->bands[band];
1095
1096 mask = params->sta_flags_mask;
1097 set = params->sta_flags_set;
1098
1099 /*
1100 * In mesh mode, we can clear AUTHENTICATED flag but must
1101 * also make ASSOCIATED follow appropriately for the driver
1102 * API. See also below, after AUTHORIZED changes.
1103 */
1104 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
1105 /* cfg80211 should not allow this in non-mesh modes */
1106 if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
1107 return -EINVAL;
1108
1109 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1110 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1111 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1112 if (ret)
1113 return ret;
1114 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1115 if (ret)
1116 return ret;
1117 }
1118 }
1119
1120 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1121 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1122 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1123 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1124 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1125 if (ret)
1126 return ret;
1127 }
1128
1129 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
1130 /* cfg80211 should not allow this in non-mesh modes */
1131 if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
1132 return -EINVAL;
1133
1134 if (!(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1135 test_sta_flag(sta, WLAN_STA_AUTH)) {
1136 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1137 if (ret)
1138 return ret;
1139 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1140 if (ret)
1141 return ret;
1142 }
1143 }
1144
1145
1146 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1147 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1148 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1149 else
1150 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1151 }
1152
1153 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1154 if (set & BIT(NL80211_STA_FLAG_WME)) {
1155 set_sta_flag(sta, WLAN_STA_WME);
1156 sta->sta.wme = true;
1157 } else {
1158 clear_sta_flag(sta, WLAN_STA_WME);
1159 sta->sta.wme = false;
1160 }
1161 }
1162
1163 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1164 if (set & BIT(NL80211_STA_FLAG_MFP))
1165 set_sta_flag(sta, WLAN_STA_MFP);
1166 else
1167 clear_sta_flag(sta, WLAN_STA_MFP);
1168 }
1169
1170 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1171 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1172 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1173 else
1174 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1175 }
1176
1177 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1178 sta->sta.uapsd_queues = params->uapsd_queues;
1179 sta->sta.max_sp = params->max_sp;
1180 }
1181
1182 /*
1183 * cfg80211 validates this (1-2007) and allows setting the AID
1184 * only when creating a new station entry
1185 */
1186 if (params->aid)
1187 sta->sta.aid = params->aid;
1188
1189 /*
1190 * FIXME: updating the following information is racy when this
1191 * function is called from ieee80211_change_station().
1192 * However, all this information should be static so
1193 * maybe we should just reject attemps to change it.
1194 */
1195
1196 if (params->listen_interval >= 0)
1197 sta->listen_interval = params->listen_interval;
1198
1199 if (params->supported_rates) {
1200 rates = 0;
1201
1202 for (i = 0; i < params->supported_rates_len; i++) {
1203 int rate = (params->supported_rates[i] & 0x7f) * 5;
1204 for (j = 0; j < sband->n_bitrates; j++) {
1205 if (sband->bitrates[j].bitrate == rate)
1206 rates |= BIT(j);
1207 }
1208 }
1209 sta->sta.supp_rates[band] = rates;
1210 }
1211
1212 if (params->ht_capa)
1213 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1214 params->ht_capa,
1215 &sta->sta.ht_cap);
1216
1217 if (params->vht_capa)
1218 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1219 params->vht_capa,
1220 &sta->sta.vht_cap);
1221
1222 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1223 #ifdef CONFIG_MAC80211_MESH
1224 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
1225 switch (params->plink_state) {
1226 case NL80211_PLINK_LISTEN:
1227 case NL80211_PLINK_ESTAB:
1228 case NL80211_PLINK_BLOCKED:
1229 sta->plink_state = params->plink_state;
1230 break;
1231 default:
1232 /* nothing */
1233 break;
1234 }
1235 else
1236 switch (params->plink_action) {
1237 case PLINK_ACTION_OPEN:
1238 mesh_plink_open(sta);
1239 break;
1240 case PLINK_ACTION_BLOCK:
1241 mesh_plink_block(sta);
1242 break;
1243 }
1244 #endif
1245 }
1246
1247 return 0;
1248 }
1249
1250 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1251 u8 *mac, struct station_parameters *params)
1252 {
1253 struct ieee80211_local *local = wiphy_priv(wiphy);
1254 struct sta_info *sta;
1255 struct ieee80211_sub_if_data *sdata;
1256 int err;
1257 int layer2_update;
1258
1259 if (params->vlan) {
1260 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1261
1262 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1263 sdata->vif.type != NL80211_IFTYPE_AP)
1264 return -EINVAL;
1265 } else
1266 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1267
1268 if (ether_addr_equal(mac, sdata->vif.addr))
1269 return -EINVAL;
1270
1271 if (is_multicast_ether_addr(mac))
1272 return -EINVAL;
1273
1274 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1275 if (!sta)
1276 return -ENOMEM;
1277
1278 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1279 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1280
1281 err = sta_apply_parameters(local, sta, params);
1282 if (err) {
1283 sta_info_free(local, sta);
1284 return err;
1285 }
1286
1287 /*
1288 * for TDLS, rate control should be initialized only when supported
1289 * rates are known.
1290 */
1291 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1292 rate_control_rate_init(sta);
1293
1294 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1295 sdata->vif.type == NL80211_IFTYPE_AP;
1296
1297 err = sta_info_insert_rcu(sta);
1298 if (err) {
1299 rcu_read_unlock();
1300 return err;
1301 }
1302
1303 if (layer2_update)
1304 ieee80211_send_layer2_update(sta);
1305
1306 rcu_read_unlock();
1307
1308 return 0;
1309 }
1310
1311 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1312 u8 *mac)
1313 {
1314 struct ieee80211_local *local = wiphy_priv(wiphy);
1315 struct ieee80211_sub_if_data *sdata;
1316
1317 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1318
1319 if (mac)
1320 return sta_info_destroy_addr_bss(sdata, mac);
1321
1322 sta_info_flush(local, sdata);
1323 return 0;
1324 }
1325
1326 static int ieee80211_change_station(struct wiphy *wiphy,
1327 struct net_device *dev,
1328 u8 *mac,
1329 struct station_parameters *params)
1330 {
1331 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1332 struct ieee80211_local *local = wiphy_priv(wiphy);
1333 struct sta_info *sta;
1334 struct ieee80211_sub_if_data *vlansdata;
1335 int err;
1336
1337 mutex_lock(&local->sta_mtx);
1338
1339 sta = sta_info_get_bss(sdata, mac);
1340 if (!sta) {
1341 mutex_unlock(&local->sta_mtx);
1342 return -ENOENT;
1343 }
1344
1345 /* in station mode, supported rates are only valid with TDLS */
1346 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1347 params->supported_rates &&
1348 !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1349 mutex_unlock(&local->sta_mtx);
1350 return -EINVAL;
1351 }
1352
1353 if (params->vlan && params->vlan != sta->sdata->dev) {
1354 bool prev_4addr = false;
1355 bool new_4addr = false;
1356
1357 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1358
1359 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1360 vlansdata->vif.type != NL80211_IFTYPE_AP) {
1361 mutex_unlock(&local->sta_mtx);
1362 return -EINVAL;
1363 }
1364
1365 if (params->vlan->ieee80211_ptr->use_4addr) {
1366 if (vlansdata->u.vlan.sta) {
1367 mutex_unlock(&local->sta_mtx);
1368 return -EBUSY;
1369 }
1370
1371 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1372 new_4addr = true;
1373 }
1374
1375 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1376 sta->sdata->u.vlan.sta) {
1377 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1378 prev_4addr = true;
1379 }
1380
1381 sta->sdata = vlansdata;
1382
1383 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1384 prev_4addr != new_4addr) {
1385 if (new_4addr)
1386 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1387 else
1388 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1389 }
1390
1391 ieee80211_send_layer2_update(sta);
1392 }
1393
1394 err = sta_apply_parameters(local, sta, params);
1395 if (err) {
1396 mutex_unlock(&local->sta_mtx);
1397 return err;
1398 }
1399
1400 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && params->supported_rates)
1401 rate_control_rate_init(sta);
1402
1403 mutex_unlock(&local->sta_mtx);
1404
1405 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1406 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1407 ieee80211_recalc_ps(local, -1);
1408 ieee80211_recalc_ps_vif(sdata);
1409 }
1410 return 0;
1411 }
1412
1413 #ifdef CONFIG_MAC80211_MESH
1414 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1415 u8 *dst, u8 *next_hop)
1416 {
1417 struct ieee80211_sub_if_data *sdata;
1418 struct mesh_path *mpath;
1419 struct sta_info *sta;
1420 int err;
1421
1422 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1423
1424 rcu_read_lock();
1425 sta = sta_info_get(sdata, next_hop);
1426 if (!sta) {
1427 rcu_read_unlock();
1428 return -ENOENT;
1429 }
1430
1431 err = mesh_path_add(dst, sdata);
1432 if (err) {
1433 rcu_read_unlock();
1434 return err;
1435 }
1436
1437 mpath = mesh_path_lookup(dst, sdata);
1438 if (!mpath) {
1439 rcu_read_unlock();
1440 return -ENXIO;
1441 }
1442 mesh_path_fix_nexthop(mpath, sta);
1443
1444 rcu_read_unlock();
1445 return 0;
1446 }
1447
1448 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1449 u8 *dst)
1450 {
1451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1452
1453 if (dst)
1454 return mesh_path_del(dst, sdata);
1455
1456 mesh_path_flush_by_iface(sdata);
1457 return 0;
1458 }
1459
1460 static int ieee80211_change_mpath(struct wiphy *wiphy,
1461 struct net_device *dev,
1462 u8 *dst, u8 *next_hop)
1463 {
1464 struct ieee80211_sub_if_data *sdata;
1465 struct mesh_path *mpath;
1466 struct sta_info *sta;
1467
1468 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1469
1470 rcu_read_lock();
1471
1472 sta = sta_info_get(sdata, next_hop);
1473 if (!sta) {
1474 rcu_read_unlock();
1475 return -ENOENT;
1476 }
1477
1478 mpath = mesh_path_lookup(dst, sdata);
1479 if (!mpath) {
1480 rcu_read_unlock();
1481 return -ENOENT;
1482 }
1483
1484 mesh_path_fix_nexthop(mpath, sta);
1485
1486 rcu_read_unlock();
1487 return 0;
1488 }
1489
1490 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1491 struct mpath_info *pinfo)
1492 {
1493 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1494
1495 if (next_hop_sta)
1496 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1497 else
1498 memset(next_hop, 0, ETH_ALEN);
1499
1500 memset(pinfo, 0, sizeof(*pinfo));
1501
1502 pinfo->generation = mesh_paths_generation;
1503
1504 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1505 MPATH_INFO_SN |
1506 MPATH_INFO_METRIC |
1507 MPATH_INFO_EXPTIME |
1508 MPATH_INFO_DISCOVERY_TIMEOUT |
1509 MPATH_INFO_DISCOVERY_RETRIES |
1510 MPATH_INFO_FLAGS;
1511
1512 pinfo->frame_qlen = mpath->frame_queue.qlen;
1513 pinfo->sn = mpath->sn;
1514 pinfo->metric = mpath->metric;
1515 if (time_before(jiffies, mpath->exp_time))
1516 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1517 pinfo->discovery_timeout =
1518 jiffies_to_msecs(mpath->discovery_timeout);
1519 pinfo->discovery_retries = mpath->discovery_retries;
1520 if (mpath->flags & MESH_PATH_ACTIVE)
1521 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1522 if (mpath->flags & MESH_PATH_RESOLVING)
1523 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1524 if (mpath->flags & MESH_PATH_SN_VALID)
1525 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1526 if (mpath->flags & MESH_PATH_FIXED)
1527 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1528 if (mpath->flags & MESH_PATH_RESOLVED)
1529 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1530 }
1531
1532 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1533 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1534
1535 {
1536 struct ieee80211_sub_if_data *sdata;
1537 struct mesh_path *mpath;
1538
1539 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1540
1541 rcu_read_lock();
1542 mpath = mesh_path_lookup(dst, sdata);
1543 if (!mpath) {
1544 rcu_read_unlock();
1545 return -ENOENT;
1546 }
1547 memcpy(dst, mpath->dst, ETH_ALEN);
1548 mpath_set_pinfo(mpath, next_hop, pinfo);
1549 rcu_read_unlock();
1550 return 0;
1551 }
1552
1553 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1554 int idx, u8 *dst, u8 *next_hop,
1555 struct mpath_info *pinfo)
1556 {
1557 struct ieee80211_sub_if_data *sdata;
1558 struct mesh_path *mpath;
1559
1560 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1561
1562 rcu_read_lock();
1563 mpath = mesh_path_lookup_by_idx(idx, sdata);
1564 if (!mpath) {
1565 rcu_read_unlock();
1566 return -ENOENT;
1567 }
1568 memcpy(dst, mpath->dst, ETH_ALEN);
1569 mpath_set_pinfo(mpath, next_hop, pinfo);
1570 rcu_read_unlock();
1571 return 0;
1572 }
1573
1574 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1575 struct net_device *dev,
1576 struct mesh_config *conf)
1577 {
1578 struct ieee80211_sub_if_data *sdata;
1579 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1580
1581 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1582 return 0;
1583 }
1584
1585 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1586 {
1587 return (mask >> (parm-1)) & 0x1;
1588 }
1589
1590 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1591 const struct mesh_setup *setup)
1592 {
1593 u8 *new_ie;
1594 const u8 *old_ie;
1595 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1596 struct ieee80211_sub_if_data, u.mesh);
1597
1598 /* allocate information elements */
1599 new_ie = NULL;
1600 old_ie = ifmsh->ie;
1601
1602 if (setup->ie_len) {
1603 new_ie = kmemdup(setup->ie, setup->ie_len,
1604 GFP_KERNEL);
1605 if (!new_ie)
1606 return -ENOMEM;
1607 }
1608 ifmsh->ie_len = setup->ie_len;
1609 ifmsh->ie = new_ie;
1610 kfree(old_ie);
1611
1612 /* now copy the rest of the setup parameters */
1613 ifmsh->mesh_id_len = setup->mesh_id_len;
1614 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1615 ifmsh->mesh_sp_id = setup->sync_method;
1616 ifmsh->mesh_pp_id = setup->path_sel_proto;
1617 ifmsh->mesh_pm_id = setup->path_metric;
1618 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1619 if (setup->is_authenticated)
1620 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1621 if (setup->is_secure)
1622 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1623
1624 /* mcast rate setting in Mesh Node */
1625 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1626 sizeof(setup->mcast_rate));
1627
1628 return 0;
1629 }
1630
1631 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1632 struct net_device *dev, u32 mask,
1633 const struct mesh_config *nconf)
1634 {
1635 struct mesh_config *conf;
1636 struct ieee80211_sub_if_data *sdata;
1637 struct ieee80211_if_mesh *ifmsh;
1638
1639 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1640 ifmsh = &sdata->u.mesh;
1641
1642 /* Set the config options which we are interested in setting */
1643 conf = &(sdata->u.mesh.mshcfg);
1644 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1645 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1646 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1647 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1648 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1649 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1650 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1651 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1652 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1653 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1654 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1655 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1656 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1657 conf->element_ttl = nconf->element_ttl;
1658 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1659 conf->auto_open_plinks = nconf->auto_open_plinks;
1660 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1661 conf->dot11MeshNbrOffsetMaxNeighbor =
1662 nconf->dot11MeshNbrOffsetMaxNeighbor;
1663 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1664 conf->dot11MeshHWMPmaxPREQretries =
1665 nconf->dot11MeshHWMPmaxPREQretries;
1666 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1667 conf->path_refresh_time = nconf->path_refresh_time;
1668 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1669 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1670 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1671 conf->dot11MeshHWMPactivePathTimeout =
1672 nconf->dot11MeshHWMPactivePathTimeout;
1673 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1674 conf->dot11MeshHWMPpreqMinInterval =
1675 nconf->dot11MeshHWMPpreqMinInterval;
1676 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1677 conf->dot11MeshHWMPperrMinInterval =
1678 nconf->dot11MeshHWMPperrMinInterval;
1679 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1680 mask))
1681 conf->dot11MeshHWMPnetDiameterTraversalTime =
1682 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1683 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1684 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1685 ieee80211_mesh_root_setup(ifmsh);
1686 }
1687 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1688 /* our current gate announcement implementation rides on root
1689 * announcements, so require this ifmsh to also be a root node
1690 * */
1691 if (nconf->dot11MeshGateAnnouncementProtocol &&
1692 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1693 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1694 ieee80211_mesh_root_setup(ifmsh);
1695 }
1696 conf->dot11MeshGateAnnouncementProtocol =
1697 nconf->dot11MeshGateAnnouncementProtocol;
1698 }
1699 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1700 conf->dot11MeshHWMPRannInterval =
1701 nconf->dot11MeshHWMPRannInterval;
1702 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1703 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1704 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1705 /* our RSSI threshold implementation is supported only for
1706 * devices that report signal in dBm.
1707 */
1708 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1709 return -ENOTSUPP;
1710 conf->rssi_threshold = nconf->rssi_threshold;
1711 }
1712 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1713 conf->ht_opmode = nconf->ht_opmode;
1714 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1715 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1716 }
1717 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1718 conf->dot11MeshHWMPactivePathToRootTimeout =
1719 nconf->dot11MeshHWMPactivePathToRootTimeout;
1720 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1721 conf->dot11MeshHWMProotInterval =
1722 nconf->dot11MeshHWMProotInterval;
1723 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1724 conf->dot11MeshHWMPconfirmationInterval =
1725 nconf->dot11MeshHWMPconfirmationInterval;
1726 return 0;
1727 }
1728
1729 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1730 const struct mesh_config *conf,
1731 const struct mesh_setup *setup)
1732 {
1733 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1734 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1735 int err;
1736
1737 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1738 err = copy_mesh_setup(ifmsh, setup);
1739 if (err)
1740 return err;
1741
1742 /* can mesh use other SMPS modes? */
1743 sdata->smps_mode = IEEE80211_SMPS_OFF;
1744 sdata->needed_rx_chains = sdata->local->rx_chains;
1745
1746 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1747 IEEE80211_CHANCTX_SHARED);
1748 if (err)
1749 return err;
1750
1751 ieee80211_start_mesh(sdata);
1752
1753 return 0;
1754 }
1755
1756 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1757 {
1758 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1759
1760 ieee80211_stop_mesh(sdata);
1761 ieee80211_vif_release_channel(sdata);
1762
1763 return 0;
1764 }
1765 #endif
1766
1767 static int ieee80211_change_bss(struct wiphy *wiphy,
1768 struct net_device *dev,
1769 struct bss_parameters *params)
1770 {
1771 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1772 enum ieee80211_band band;
1773 u32 changed = 0;
1774
1775 if (!rtnl_dereference(sdata->u.ap.beacon))
1776 return -ENOENT;
1777
1778 band = ieee80211_get_sdata_band(sdata);
1779
1780 if (params->use_cts_prot >= 0) {
1781 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1782 changed |= BSS_CHANGED_ERP_CTS_PROT;
1783 }
1784 if (params->use_short_preamble >= 0) {
1785 sdata->vif.bss_conf.use_short_preamble =
1786 params->use_short_preamble;
1787 changed |= BSS_CHANGED_ERP_PREAMBLE;
1788 }
1789
1790 if (!sdata->vif.bss_conf.use_short_slot &&
1791 band == IEEE80211_BAND_5GHZ) {
1792 sdata->vif.bss_conf.use_short_slot = true;
1793 changed |= BSS_CHANGED_ERP_SLOT;
1794 }
1795
1796 if (params->use_short_slot_time >= 0) {
1797 sdata->vif.bss_conf.use_short_slot =
1798 params->use_short_slot_time;
1799 changed |= BSS_CHANGED_ERP_SLOT;
1800 }
1801
1802 if (params->basic_rates) {
1803 int i, j;
1804 u32 rates = 0;
1805 struct ieee80211_supported_band *sband = wiphy->bands[band];
1806
1807 for (i = 0; i < params->basic_rates_len; i++) {
1808 int rate = (params->basic_rates[i] & 0x7f) * 5;
1809 for (j = 0; j < sband->n_bitrates; j++) {
1810 if (sband->bitrates[j].bitrate == rate)
1811 rates |= BIT(j);
1812 }
1813 }
1814 sdata->vif.bss_conf.basic_rates = rates;
1815 changed |= BSS_CHANGED_BASIC_RATES;
1816 }
1817
1818 if (params->ap_isolate >= 0) {
1819 if (params->ap_isolate)
1820 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1821 else
1822 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1823 }
1824
1825 if (params->ht_opmode >= 0) {
1826 sdata->vif.bss_conf.ht_operation_mode =
1827 (u16) params->ht_opmode;
1828 changed |= BSS_CHANGED_HT;
1829 }
1830
1831 if (params->p2p_ctwindow >= 0) {
1832 sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
1833 changed |= BSS_CHANGED_P2P_PS;
1834 }
1835
1836 if (params->p2p_opp_ps >= 0) {
1837 sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
1838 changed |= BSS_CHANGED_P2P_PS;
1839 }
1840
1841 ieee80211_bss_info_change_notify(sdata, changed);
1842
1843 return 0;
1844 }
1845
1846 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1847 struct net_device *dev,
1848 struct ieee80211_txq_params *params)
1849 {
1850 struct ieee80211_local *local = wiphy_priv(wiphy);
1851 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1852 struct ieee80211_tx_queue_params p;
1853
1854 if (!local->ops->conf_tx)
1855 return -EOPNOTSUPP;
1856
1857 if (local->hw.queues < IEEE80211_NUM_ACS)
1858 return -EOPNOTSUPP;
1859
1860 memset(&p, 0, sizeof(p));
1861 p.aifs = params->aifs;
1862 p.cw_max = params->cwmax;
1863 p.cw_min = params->cwmin;
1864 p.txop = params->txop;
1865
1866 /*
1867 * Setting tx queue params disables u-apsd because it's only
1868 * called in master mode.
1869 */
1870 p.uapsd = false;
1871
1872 sdata->tx_conf[params->ac] = p;
1873 if (drv_conf_tx(local, sdata, params->ac, &p)) {
1874 wiphy_debug(local->hw.wiphy,
1875 "failed to set TX queue parameters for AC %d\n",
1876 params->ac);
1877 return -EINVAL;
1878 }
1879
1880 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1881
1882 return 0;
1883 }
1884
1885 #ifdef CONFIG_PM
1886 static int ieee80211_suspend(struct wiphy *wiphy,
1887 struct cfg80211_wowlan *wowlan)
1888 {
1889 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1890 }
1891
1892 static int ieee80211_resume(struct wiphy *wiphy)
1893 {
1894 return __ieee80211_resume(wiphy_priv(wiphy));
1895 }
1896 #else
1897 #define ieee80211_suspend NULL
1898 #define ieee80211_resume NULL
1899 #endif
1900
1901 static int ieee80211_scan(struct wiphy *wiphy,
1902 struct cfg80211_scan_request *req)
1903 {
1904 struct ieee80211_sub_if_data *sdata;
1905
1906 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
1907
1908 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1909 case NL80211_IFTYPE_STATION:
1910 case NL80211_IFTYPE_ADHOC:
1911 case NL80211_IFTYPE_MESH_POINT:
1912 case NL80211_IFTYPE_P2P_CLIENT:
1913 case NL80211_IFTYPE_P2P_DEVICE:
1914 break;
1915 case NL80211_IFTYPE_P2P_GO:
1916 if (sdata->local->ops->hw_scan)
1917 break;
1918 /*
1919 * FIXME: implement NoA while scanning in software,
1920 * for now fall through to allow scanning only when
1921 * beaconing hasn't been configured yet
1922 */
1923 case NL80211_IFTYPE_AP:
1924 /*
1925 * If the scan has been forced (and the driver supports
1926 * forcing), don't care about being beaconing already.
1927 * This will create problems to the attached stations (e.g. all
1928 * the frames sent while scanning on other channel will be
1929 * lost)
1930 */
1931 if (sdata->u.ap.beacon &&
1932 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1933 !(req->flags & NL80211_SCAN_FLAG_AP)))
1934 return -EOPNOTSUPP;
1935 break;
1936 default:
1937 return -EOPNOTSUPP;
1938 }
1939
1940 return ieee80211_request_scan(sdata, req);
1941 }
1942
1943 static int
1944 ieee80211_sched_scan_start(struct wiphy *wiphy,
1945 struct net_device *dev,
1946 struct cfg80211_sched_scan_request *req)
1947 {
1948 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1949
1950 if (!sdata->local->ops->sched_scan_start)
1951 return -EOPNOTSUPP;
1952
1953 return ieee80211_request_sched_scan_start(sdata, req);
1954 }
1955
1956 static int
1957 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1958 {
1959 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1960
1961 if (!sdata->local->ops->sched_scan_stop)
1962 return -EOPNOTSUPP;
1963
1964 return ieee80211_request_sched_scan_stop(sdata);
1965 }
1966
1967 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1968 struct cfg80211_auth_request *req)
1969 {
1970 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1971 }
1972
1973 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1974 struct cfg80211_assoc_request *req)
1975 {
1976 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1977 }
1978
1979 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1980 struct cfg80211_deauth_request *req)
1981 {
1982 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1983 }
1984
1985 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1986 struct cfg80211_disassoc_request *req)
1987 {
1988 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1989 }
1990
1991 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1992 struct cfg80211_ibss_params *params)
1993 {
1994 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
1995 }
1996
1997 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1998 {
1999 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2000 }
2001
2002 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2003 int rate[IEEE80211_NUM_BANDS])
2004 {
2005 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2006
2007 memcpy(sdata->vif.bss_conf.mcast_rate, rate, sizeof(rate));
2008
2009 return 0;
2010 }
2011
2012 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2013 {
2014 struct ieee80211_local *local = wiphy_priv(wiphy);
2015 int err;
2016
2017 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2018 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2019
2020 if (err)
2021 return err;
2022 }
2023
2024 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2025 err = drv_set_coverage_class(local, wiphy->coverage_class);
2026
2027 if (err)
2028 return err;
2029 }
2030
2031 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2032 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2033
2034 if (err)
2035 return err;
2036 }
2037
2038 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2039 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2040 return -EINVAL;
2041 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2042 }
2043 if (changed & WIPHY_PARAM_RETRY_LONG) {
2044 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2045 return -EINVAL;
2046 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2047 }
2048 if (changed &
2049 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2050 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2051
2052 return 0;
2053 }
2054
2055 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2056 struct wireless_dev *wdev,
2057 enum nl80211_tx_power_setting type, int mbm)
2058 {
2059 struct ieee80211_local *local = wiphy_priv(wiphy);
2060 struct ieee80211_sub_if_data *sdata;
2061
2062 if (wdev) {
2063 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2064
2065 switch (type) {
2066 case NL80211_TX_POWER_AUTOMATIC:
2067 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2068 break;
2069 case NL80211_TX_POWER_LIMITED:
2070 case NL80211_TX_POWER_FIXED:
2071 if (mbm < 0 || (mbm % 100))
2072 return -EOPNOTSUPP;
2073 sdata->user_power_level = MBM_TO_DBM(mbm);
2074 break;
2075 }
2076
2077 ieee80211_recalc_txpower(sdata);
2078
2079 return 0;
2080 }
2081
2082 switch (type) {
2083 case NL80211_TX_POWER_AUTOMATIC:
2084 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2085 break;
2086 case NL80211_TX_POWER_LIMITED:
2087 case NL80211_TX_POWER_FIXED:
2088 if (mbm < 0 || (mbm % 100))
2089 return -EOPNOTSUPP;
2090 local->user_power_level = MBM_TO_DBM(mbm);
2091 break;
2092 }
2093
2094 mutex_lock(&local->iflist_mtx);
2095 list_for_each_entry(sdata, &local->interfaces, list)
2096 sdata->user_power_level = local->user_power_level;
2097 list_for_each_entry(sdata, &local->interfaces, list)
2098 ieee80211_recalc_txpower(sdata);
2099 mutex_unlock(&local->iflist_mtx);
2100
2101 return 0;
2102 }
2103
2104 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2105 struct wireless_dev *wdev,
2106 int *dbm)
2107 {
2108 struct ieee80211_local *local = wiphy_priv(wiphy);
2109 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2110
2111 if (!local->use_chanctx)
2112 *dbm = local->hw.conf.power_level;
2113 else
2114 *dbm = sdata->vif.bss_conf.txpower;
2115
2116 return 0;
2117 }
2118
2119 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2120 const u8 *addr)
2121 {
2122 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2123
2124 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2125
2126 return 0;
2127 }
2128
2129 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2130 {
2131 struct ieee80211_local *local = wiphy_priv(wiphy);
2132
2133 drv_rfkill_poll(local);
2134 }
2135
2136 #ifdef CONFIG_NL80211_TESTMODE
2137 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
2138 {
2139 struct ieee80211_local *local = wiphy_priv(wiphy);
2140
2141 if (!local->ops->testmode_cmd)
2142 return -EOPNOTSUPP;
2143
2144 return local->ops->testmode_cmd(&local->hw, data, len);
2145 }
2146
2147 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2148 struct sk_buff *skb,
2149 struct netlink_callback *cb,
2150 void *data, int len)
2151 {
2152 struct ieee80211_local *local = wiphy_priv(wiphy);
2153
2154 if (!local->ops->testmode_dump)
2155 return -EOPNOTSUPP;
2156
2157 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2158 }
2159 #endif
2160
2161 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
2162 enum ieee80211_smps_mode smps_mode)
2163 {
2164 const u8 *ap;
2165 enum ieee80211_smps_mode old_req;
2166 int err;
2167
2168 lockdep_assert_held(&sdata->u.mgd.mtx);
2169
2170 old_req = sdata->u.mgd.req_smps;
2171 sdata->u.mgd.req_smps = smps_mode;
2172
2173 if (old_req == smps_mode &&
2174 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2175 return 0;
2176
2177 /*
2178 * If not associated, or current association is not an HT
2179 * association, there's no need to do anything, just store
2180 * the new value until we associate.
2181 */
2182 if (!sdata->u.mgd.associated ||
2183 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2184 return 0;
2185
2186 ap = sdata->u.mgd.associated->bssid;
2187
2188 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2189 if (sdata->u.mgd.powersave)
2190 smps_mode = IEEE80211_SMPS_DYNAMIC;
2191 else
2192 smps_mode = IEEE80211_SMPS_OFF;
2193 }
2194
2195 /* send SM PS frame to AP */
2196 err = ieee80211_send_smps_action(sdata, smps_mode,
2197 ap, ap);
2198 if (err)
2199 sdata->u.mgd.req_smps = old_req;
2200
2201 return err;
2202 }
2203
2204 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2205 bool enabled, int timeout)
2206 {
2207 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2208 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2209
2210 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2211 return -EOPNOTSUPP;
2212
2213 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2214 return -EOPNOTSUPP;
2215
2216 if (enabled == sdata->u.mgd.powersave &&
2217 timeout == local->dynamic_ps_forced_timeout)
2218 return 0;
2219
2220 sdata->u.mgd.powersave = enabled;
2221 local->dynamic_ps_forced_timeout = timeout;
2222
2223 /* no change, but if automatic follow powersave */
2224 mutex_lock(&sdata->u.mgd.mtx);
2225 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
2226 mutex_unlock(&sdata->u.mgd.mtx);
2227
2228 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2229 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2230
2231 ieee80211_recalc_ps(local, -1);
2232 ieee80211_recalc_ps_vif(sdata);
2233
2234 return 0;
2235 }
2236
2237 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2238 struct net_device *dev,
2239 s32 rssi_thold, u32 rssi_hyst)
2240 {
2241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2242 struct ieee80211_vif *vif = &sdata->vif;
2243 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2244
2245 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2246 rssi_hyst == bss_conf->cqm_rssi_hyst)
2247 return 0;
2248
2249 bss_conf->cqm_rssi_thold = rssi_thold;
2250 bss_conf->cqm_rssi_hyst = rssi_hyst;
2251
2252 /* tell the driver upon association, unless already associated */
2253 if (sdata->u.mgd.associated &&
2254 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2255 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2256
2257 return 0;
2258 }
2259
2260 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2261 struct net_device *dev,
2262 const u8 *addr,
2263 const struct cfg80211_bitrate_mask *mask)
2264 {
2265 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2266 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2267 int i, ret;
2268
2269 if (!ieee80211_sdata_running(sdata))
2270 return -ENETDOWN;
2271
2272 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2273 ret = drv_set_bitrate_mask(local, sdata, mask);
2274 if (ret)
2275 return ret;
2276 }
2277
2278 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2279 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2280 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
2281 sizeof(mask->control[i].mcs));
2282 }
2283
2284 return 0;
2285 }
2286
2287 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2288 struct ieee80211_sub_if_data *sdata,
2289 struct ieee80211_channel *channel,
2290 unsigned int duration, u64 *cookie,
2291 struct sk_buff *txskb)
2292 {
2293 struct ieee80211_roc_work *roc, *tmp;
2294 bool queued = false;
2295 int ret;
2296
2297 lockdep_assert_held(&local->mtx);
2298
2299 if (local->use_chanctx && !local->ops->remain_on_channel)
2300 return -EOPNOTSUPP;
2301
2302 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2303 if (!roc)
2304 return -ENOMEM;
2305
2306 roc->chan = channel;
2307 roc->duration = duration;
2308 roc->req_duration = duration;
2309 roc->frame = txskb;
2310 roc->mgmt_tx_cookie = (unsigned long)txskb;
2311 roc->sdata = sdata;
2312 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2313 INIT_LIST_HEAD(&roc->dependents);
2314
2315 /* if there's one pending or we're scanning, queue this one */
2316 if (!list_empty(&local->roc_list) || local->scanning)
2317 goto out_check_combine;
2318
2319 /* if not HW assist, just queue & schedule work */
2320 if (!local->ops->remain_on_channel) {
2321 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2322 goto out_queue;
2323 }
2324
2325 /* otherwise actually kick it off here (for error handling) */
2326
2327 /*
2328 * If the duration is zero, then the driver
2329 * wouldn't actually do anything. Set it to
2330 * 10 for now.
2331 *
2332 * TODO: cancel the off-channel operation
2333 * when we get the SKB's TX status and
2334 * the wait time was zero before.
2335 */
2336 if (!duration)
2337 duration = 10;
2338
2339 ret = drv_remain_on_channel(local, sdata, channel, duration);
2340 if (ret) {
2341 kfree(roc);
2342 return ret;
2343 }
2344
2345 roc->started = true;
2346 goto out_queue;
2347
2348 out_check_combine:
2349 list_for_each_entry(tmp, &local->roc_list, list) {
2350 if (tmp->chan != channel || tmp->sdata != sdata)
2351 continue;
2352
2353 /*
2354 * Extend this ROC if possible:
2355 *
2356 * If it hasn't started yet, just increase the duration
2357 * and add the new one to the list of dependents.
2358 */
2359 if (!tmp->started) {
2360 list_add_tail(&roc->list, &tmp->dependents);
2361 tmp->duration = max(tmp->duration, roc->duration);
2362 queued = true;
2363 break;
2364 }
2365
2366 /* If it has already started, it's more difficult ... */
2367 if (local->ops->remain_on_channel) {
2368 unsigned long j = jiffies;
2369
2370 /*
2371 * In the offloaded ROC case, if it hasn't begun, add
2372 * this new one to the dependent list to be handled
2373 * when the the master one begins. If it has begun,
2374 * check that there's still a minimum time left and
2375 * if so, start this one, transmitting the frame, but
2376 * add it to the list directly after this one with a
2377 * a reduced time so we'll ask the driver to execute
2378 * it right after finishing the previous one, in the
2379 * hope that it'll also be executed right afterwards,
2380 * effectively extending the old one.
2381 * If there's no minimum time left, just add it to the
2382 * normal list.
2383 */
2384 if (!tmp->hw_begun) {
2385 list_add_tail(&roc->list, &tmp->dependents);
2386 queued = true;
2387 break;
2388 }
2389
2390 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2391 tmp->hw_start_time +
2392 msecs_to_jiffies(tmp->duration))) {
2393 int new_dur;
2394
2395 ieee80211_handle_roc_started(roc);
2396
2397 new_dur = roc->duration -
2398 jiffies_to_msecs(tmp->hw_start_time +
2399 msecs_to_jiffies(
2400 tmp->duration) -
2401 j);
2402
2403 if (new_dur > 0) {
2404 /* add right after tmp */
2405 list_add(&roc->list, &tmp->list);
2406 } else {
2407 list_add_tail(&roc->list,
2408 &tmp->dependents);
2409 }
2410 queued = true;
2411 }
2412 } else if (del_timer_sync(&tmp->work.timer)) {
2413 unsigned long new_end;
2414
2415 /*
2416 * In the software ROC case, cancel the timer, if
2417 * that fails then the finish work is already
2418 * queued/pending and thus we queue the new ROC
2419 * normally, if that succeeds then we can extend
2420 * the timer duration and TX the frame (if any.)
2421 */
2422
2423 list_add_tail(&roc->list, &tmp->dependents);
2424 queued = true;
2425
2426 new_end = jiffies + msecs_to_jiffies(roc->duration);
2427
2428 /* ok, it was started & we canceled timer */
2429 if (time_after(new_end, tmp->work.timer.expires))
2430 mod_timer(&tmp->work.timer, new_end);
2431 else
2432 add_timer(&tmp->work.timer);
2433
2434 ieee80211_handle_roc_started(roc);
2435 }
2436 break;
2437 }
2438
2439 out_queue:
2440 if (!queued)
2441 list_add_tail(&roc->list, &local->roc_list);
2442
2443 /*
2444 * cookie is either the roc cookie (for normal roc)
2445 * or the SKB (for mgmt TX)
2446 */
2447 if (!txskb) {
2448 /* local->mtx protects this */
2449 local->roc_cookie_counter++;
2450 roc->cookie = local->roc_cookie_counter;
2451 /* wow, you wrapped 64 bits ... more likely a bug */
2452 if (WARN_ON(roc->cookie == 0)) {
2453 roc->cookie = 1;
2454 local->roc_cookie_counter++;
2455 }
2456 *cookie = roc->cookie;
2457 } else {
2458 *cookie = (unsigned long)txskb;
2459 }
2460
2461 return 0;
2462 }
2463
2464 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2465 struct wireless_dev *wdev,
2466 struct ieee80211_channel *chan,
2467 unsigned int duration,
2468 u64 *cookie)
2469 {
2470 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2471 struct ieee80211_local *local = sdata->local;
2472 int ret;
2473
2474 mutex_lock(&local->mtx);
2475 ret = ieee80211_start_roc_work(local, sdata, chan,
2476 duration, cookie, NULL);
2477 mutex_unlock(&local->mtx);
2478
2479 return ret;
2480 }
2481
2482 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2483 u64 cookie, bool mgmt_tx)
2484 {
2485 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2486 int ret;
2487
2488 mutex_lock(&local->mtx);
2489 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2490 struct ieee80211_roc_work *dep, *tmp2;
2491
2492 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2493 if (!mgmt_tx && dep->cookie != cookie)
2494 continue;
2495 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2496 continue;
2497 /* found dependent item -- just remove it */
2498 list_del(&dep->list);
2499 mutex_unlock(&local->mtx);
2500
2501 ieee80211_roc_notify_destroy(dep);
2502 return 0;
2503 }
2504
2505 if (!mgmt_tx && roc->cookie != cookie)
2506 continue;
2507 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2508 continue;
2509
2510 found = roc;
2511 break;
2512 }
2513
2514 if (!found) {
2515 mutex_unlock(&local->mtx);
2516 return -ENOENT;
2517 }
2518
2519 /*
2520 * We found the item to cancel, so do that. Note that it
2521 * may have dependents, which we also cancel (and send
2522 * the expired signal for.) Not doing so would be quite
2523 * tricky here, but we may need to fix it later.
2524 */
2525
2526 if (local->ops->remain_on_channel) {
2527 if (found->started) {
2528 ret = drv_cancel_remain_on_channel(local);
2529 if (WARN_ON_ONCE(ret)) {
2530 mutex_unlock(&local->mtx);
2531 return ret;
2532 }
2533 }
2534
2535 list_del(&found->list);
2536
2537 if (found->started)
2538 ieee80211_start_next_roc(local);
2539 mutex_unlock(&local->mtx);
2540
2541 ieee80211_roc_notify_destroy(found);
2542 } else {
2543 /* work may be pending so use it all the time */
2544 found->abort = true;
2545 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2546
2547 mutex_unlock(&local->mtx);
2548
2549 /* work will clean up etc */
2550 flush_delayed_work(&found->work);
2551 }
2552
2553 return 0;
2554 }
2555
2556 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2557 struct wireless_dev *wdev,
2558 u64 cookie)
2559 {
2560 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2561 struct ieee80211_local *local = sdata->local;
2562
2563 return ieee80211_cancel_roc(local, cookie, false);
2564 }
2565
2566 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
2567 struct ieee80211_channel *chan, bool offchan,
2568 unsigned int wait, const u8 *buf, size_t len,
2569 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
2570 {
2571 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2572 struct ieee80211_local *local = sdata->local;
2573 struct sk_buff *skb;
2574 struct sta_info *sta;
2575 const struct ieee80211_mgmt *mgmt = (void *)buf;
2576 bool need_offchan = false;
2577 u32 flags;
2578 int ret;
2579
2580 if (dont_wait_for_ack)
2581 flags = IEEE80211_TX_CTL_NO_ACK;
2582 else
2583 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
2584 IEEE80211_TX_CTL_REQ_TX_STATUS;
2585
2586 if (no_cck)
2587 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
2588
2589 switch (sdata->vif.type) {
2590 case NL80211_IFTYPE_ADHOC:
2591 if (!sdata->vif.bss_conf.ibss_joined)
2592 need_offchan = true;
2593 /* fall through */
2594 #ifdef CONFIG_MAC80211_MESH
2595 case NL80211_IFTYPE_MESH_POINT:
2596 if (ieee80211_vif_is_mesh(&sdata->vif) &&
2597 !sdata->u.mesh.mesh_id_len)
2598 need_offchan = true;
2599 /* fall through */
2600 #endif
2601 case NL80211_IFTYPE_AP:
2602 case NL80211_IFTYPE_AP_VLAN:
2603 case NL80211_IFTYPE_P2P_GO:
2604 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
2605 !ieee80211_vif_is_mesh(&sdata->vif) &&
2606 !rcu_access_pointer(sdata->bss->beacon))
2607 need_offchan = true;
2608 if (!ieee80211_is_action(mgmt->frame_control) ||
2609 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
2610 break;
2611 rcu_read_lock();
2612 sta = sta_info_get(sdata, mgmt->da);
2613 rcu_read_unlock();
2614 if (!sta)
2615 return -ENOLINK;
2616 break;
2617 case NL80211_IFTYPE_STATION:
2618 case NL80211_IFTYPE_P2P_CLIENT:
2619 if (!sdata->u.mgd.associated)
2620 need_offchan = true;
2621 break;
2622 case NL80211_IFTYPE_P2P_DEVICE:
2623 need_offchan = true;
2624 break;
2625 default:
2626 return -EOPNOTSUPP;
2627 }
2628
2629 mutex_lock(&local->mtx);
2630
2631 /* Check if the operating channel is the requested channel */
2632 if (!need_offchan) {
2633 struct ieee80211_chanctx_conf *chanctx_conf;
2634
2635 rcu_read_lock();
2636 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2637
2638 if (chanctx_conf)
2639 need_offchan = chan != chanctx_conf->def.chan;
2640 else
2641 need_offchan = true;
2642 rcu_read_unlock();
2643 }
2644
2645 if (need_offchan && !offchan) {
2646 ret = -EBUSY;
2647 goto out_unlock;
2648 }
2649
2650 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
2651 if (!skb) {
2652 ret = -ENOMEM;
2653 goto out_unlock;
2654 }
2655 skb_reserve(skb, local->hw.extra_tx_headroom);
2656
2657 memcpy(skb_put(skb, len), buf, len);
2658
2659 IEEE80211_SKB_CB(skb)->flags = flags;
2660
2661 skb->dev = sdata->dev;
2662
2663 if (!need_offchan) {
2664 *cookie = (unsigned long) skb;
2665 ieee80211_tx_skb(sdata, skb);
2666 ret = 0;
2667 goto out_unlock;
2668 }
2669
2670 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
2671 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
2672 IEEE80211_SKB_CB(skb)->hw_queue =
2673 local->hw.offchannel_tx_hw_queue;
2674
2675 /* This will handle all kinds of coalescing and immediate TX */
2676 ret = ieee80211_start_roc_work(local, sdata, chan,
2677 wait, cookie, skb);
2678 if (ret)
2679 kfree_skb(skb);
2680 out_unlock:
2681 mutex_unlock(&local->mtx);
2682 return ret;
2683 }
2684
2685 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2686 struct wireless_dev *wdev,
2687 u64 cookie)
2688 {
2689 struct ieee80211_local *local = wiphy_priv(wiphy);
2690
2691 return ieee80211_cancel_roc(local, cookie, true);
2692 }
2693
2694 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2695 struct wireless_dev *wdev,
2696 u16 frame_type, bool reg)
2697 {
2698 struct ieee80211_local *local = wiphy_priv(wiphy);
2699 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2700
2701 switch (frame_type) {
2702 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH:
2703 if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
2704 struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
2705
2706 if (reg)
2707 ifibss->auth_frame_registrations++;
2708 else
2709 ifibss->auth_frame_registrations--;
2710 }
2711 break;
2712 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
2713 if (reg)
2714 local->probe_req_reg++;
2715 else
2716 local->probe_req_reg--;
2717
2718 if (!local->open_count)
2719 break;
2720
2721 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2722 break;
2723 default:
2724 break;
2725 }
2726 }
2727
2728 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2729 {
2730 struct ieee80211_local *local = wiphy_priv(wiphy);
2731
2732 if (local->started)
2733 return -EOPNOTSUPP;
2734
2735 return drv_set_antenna(local, tx_ant, rx_ant);
2736 }
2737
2738 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2739 {
2740 struct ieee80211_local *local = wiphy_priv(wiphy);
2741
2742 return drv_get_antenna(local, tx_ant, rx_ant);
2743 }
2744
2745 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2746 {
2747 struct ieee80211_local *local = wiphy_priv(wiphy);
2748
2749 return drv_set_ringparam(local, tx, rx);
2750 }
2751
2752 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2753 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2754 {
2755 struct ieee80211_local *local = wiphy_priv(wiphy);
2756
2757 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2758 }
2759
2760 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2761 struct net_device *dev,
2762 struct cfg80211_gtk_rekey_data *data)
2763 {
2764 struct ieee80211_local *local = wiphy_priv(wiphy);
2765 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2766
2767 if (!local->ops->set_rekey_data)
2768 return -EOPNOTSUPP;
2769
2770 drv_set_rekey_data(local, sdata, data);
2771
2772 return 0;
2773 }
2774
2775 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
2776 {
2777 u8 *pos = (void *)skb_put(skb, 7);
2778
2779 *pos++ = WLAN_EID_EXT_CAPABILITY;
2780 *pos++ = 5; /* len */
2781 *pos++ = 0x0;
2782 *pos++ = 0x0;
2783 *pos++ = 0x0;
2784 *pos++ = 0x0;
2785 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
2786 }
2787
2788 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
2789 {
2790 struct ieee80211_local *local = sdata->local;
2791 u16 capab;
2792
2793 capab = 0;
2794 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
2795 return capab;
2796
2797 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
2798 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
2799 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
2800 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
2801
2802 return capab;
2803 }
2804
2805 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
2806 u8 *peer, u8 *bssid)
2807 {
2808 struct ieee80211_tdls_lnkie *lnkid;
2809
2810 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
2811
2812 lnkid->ie_type = WLAN_EID_LINK_ID;
2813 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
2814
2815 memcpy(lnkid->bssid, bssid, ETH_ALEN);
2816 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
2817 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
2818 }
2819
2820 static int
2821 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
2822 u8 *peer, u8 action_code, u8 dialog_token,
2823 u16 status_code, struct sk_buff *skb)
2824 {
2825 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2826 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
2827 struct ieee80211_tdls_data *tf;
2828
2829 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
2830
2831 memcpy(tf->da, peer, ETH_ALEN);
2832 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
2833 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
2834 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
2835
2836 switch (action_code) {
2837 case WLAN_TDLS_SETUP_REQUEST:
2838 tf->category = WLAN_CATEGORY_TDLS;
2839 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
2840
2841 skb_put(skb, sizeof(tf->u.setup_req));
2842 tf->u.setup_req.dialog_token = dialog_token;
2843 tf->u.setup_req.capability =
2844 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2845
2846 ieee80211_add_srates_ie(sdata, skb, false, band);
2847 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
2848 ieee80211_tdls_add_ext_capab(skb);
2849 break;
2850 case WLAN_TDLS_SETUP_RESPONSE:
2851 tf->category = WLAN_CATEGORY_TDLS;
2852 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
2853
2854 skb_put(skb, sizeof(tf->u.setup_resp));
2855 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
2856 tf->u.setup_resp.dialog_token = dialog_token;
2857 tf->u.setup_resp.capability =
2858 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2859
2860 ieee80211_add_srates_ie(sdata, skb, false, band);
2861 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
2862 ieee80211_tdls_add_ext_capab(skb);
2863 break;
2864 case WLAN_TDLS_SETUP_CONFIRM:
2865 tf->category = WLAN_CATEGORY_TDLS;
2866 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
2867
2868 skb_put(skb, sizeof(tf->u.setup_cfm));
2869 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
2870 tf->u.setup_cfm.dialog_token = dialog_token;
2871 break;
2872 case WLAN_TDLS_TEARDOWN:
2873 tf->category = WLAN_CATEGORY_TDLS;
2874 tf->action_code = WLAN_TDLS_TEARDOWN;
2875
2876 skb_put(skb, sizeof(tf->u.teardown));
2877 tf->u.teardown.reason_code = cpu_to_le16(status_code);
2878 break;
2879 case WLAN_TDLS_DISCOVERY_REQUEST:
2880 tf->category = WLAN_CATEGORY_TDLS;
2881 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
2882
2883 skb_put(skb, sizeof(tf->u.discover_req));
2884 tf->u.discover_req.dialog_token = dialog_token;
2885 break;
2886 default:
2887 return -EINVAL;
2888 }
2889
2890 return 0;
2891 }
2892
2893 static int
2894 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
2895 u8 *peer, u8 action_code, u8 dialog_token,
2896 u16 status_code, struct sk_buff *skb)
2897 {
2898 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2899 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
2900 struct ieee80211_mgmt *mgmt;
2901
2902 mgmt = (void *)skb_put(skb, 24);
2903 memset(mgmt, 0, 24);
2904 memcpy(mgmt->da, peer, ETH_ALEN);
2905 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
2906 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
2907
2908 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2909 IEEE80211_STYPE_ACTION);
2910
2911 switch (action_code) {
2912 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2913 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
2914 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
2915 mgmt->u.action.u.tdls_discover_resp.action_code =
2916 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
2917 mgmt->u.action.u.tdls_discover_resp.dialog_token =
2918 dialog_token;
2919 mgmt->u.action.u.tdls_discover_resp.capability =
2920 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2921
2922 ieee80211_add_srates_ie(sdata, skb, false, band);
2923 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
2924 ieee80211_tdls_add_ext_capab(skb);
2925 break;
2926 default:
2927 return -EINVAL;
2928 }
2929
2930 return 0;
2931 }
2932
2933 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2934 u8 *peer, u8 action_code, u8 dialog_token,
2935 u16 status_code, const u8 *extra_ies,
2936 size_t extra_ies_len)
2937 {
2938 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2939 struct ieee80211_local *local = sdata->local;
2940 struct sk_buff *skb = NULL;
2941 bool send_direct;
2942 int ret;
2943
2944 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2945 return -ENOTSUPP;
2946
2947 /* make sure we are in managed mode, and associated */
2948 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
2949 !sdata->u.mgd.associated)
2950 return -EINVAL;
2951
2952 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
2953 action_code, peer);
2954
2955 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
2956 max(sizeof(struct ieee80211_mgmt),
2957 sizeof(struct ieee80211_tdls_data)) +
2958 50 + /* supported rates */
2959 7 + /* ext capab */
2960 extra_ies_len +
2961 sizeof(struct ieee80211_tdls_lnkie));
2962 if (!skb)
2963 return -ENOMEM;
2964
2965 skb_reserve(skb, local->hw.extra_tx_headroom);
2966
2967 switch (action_code) {
2968 case WLAN_TDLS_SETUP_REQUEST:
2969 case WLAN_TDLS_SETUP_RESPONSE:
2970 case WLAN_TDLS_SETUP_CONFIRM:
2971 case WLAN_TDLS_TEARDOWN:
2972 case WLAN_TDLS_DISCOVERY_REQUEST:
2973 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
2974 action_code, dialog_token,
2975 status_code, skb);
2976 send_direct = false;
2977 break;
2978 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2979 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
2980 dialog_token, status_code,
2981 skb);
2982 send_direct = true;
2983 break;
2984 default:
2985 ret = -ENOTSUPP;
2986 break;
2987 }
2988
2989 if (ret < 0)
2990 goto fail;
2991
2992 if (extra_ies_len)
2993 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
2994
2995 /* the TDLS link IE is always added last */
2996 switch (action_code) {
2997 case WLAN_TDLS_SETUP_REQUEST:
2998 case WLAN_TDLS_SETUP_CONFIRM:
2999 case WLAN_TDLS_TEARDOWN:
3000 case WLAN_TDLS_DISCOVERY_REQUEST:
3001 /* we are the initiator */
3002 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3003 sdata->u.mgd.bssid);
3004 break;
3005 case WLAN_TDLS_SETUP_RESPONSE:
3006 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3007 /* we are the responder */
3008 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3009 sdata->u.mgd.bssid);
3010 break;
3011 default:
3012 ret = -ENOTSUPP;
3013 goto fail;
3014 }
3015
3016 if (send_direct) {
3017 ieee80211_tx_skb(sdata, skb);
3018 return 0;
3019 }
3020
3021 /*
3022 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3023 * we should default to AC_VI.
3024 */
3025 switch (action_code) {
3026 case WLAN_TDLS_SETUP_REQUEST:
3027 case WLAN_TDLS_SETUP_RESPONSE:
3028 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3029 skb->priority = 2;
3030 break;
3031 default:
3032 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3033 skb->priority = 5;
3034 break;
3035 }
3036
3037 /* disable bottom halves when entering the Tx path */
3038 local_bh_disable();
3039 ret = ieee80211_subif_start_xmit(skb, dev);
3040 local_bh_enable();
3041
3042 return ret;
3043
3044 fail:
3045 dev_kfree_skb(skb);
3046 return ret;
3047 }
3048
3049 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3050 u8 *peer, enum nl80211_tdls_operation oper)
3051 {
3052 struct sta_info *sta;
3053 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3054
3055 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3056 return -ENOTSUPP;
3057
3058 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3059 return -EINVAL;
3060
3061 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3062
3063 switch (oper) {
3064 case NL80211_TDLS_ENABLE_LINK:
3065 rcu_read_lock();
3066 sta = sta_info_get(sdata, peer);
3067 if (!sta) {
3068 rcu_read_unlock();
3069 return -ENOLINK;
3070 }
3071
3072 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3073 rcu_read_unlock();
3074 break;
3075 case NL80211_TDLS_DISABLE_LINK:
3076 return sta_info_destroy_addr(sdata, peer);
3077 case NL80211_TDLS_TEARDOWN:
3078 case NL80211_TDLS_SETUP:
3079 case NL80211_TDLS_DISCOVERY_REQ:
3080 /* We don't support in-driver setup/teardown/discovery */
3081 return -ENOTSUPP;
3082 default:
3083 return -ENOTSUPP;
3084 }
3085
3086 return 0;
3087 }
3088
3089 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3090 const u8 *peer, u64 *cookie)
3091 {
3092 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3093 struct ieee80211_local *local = sdata->local;
3094 struct ieee80211_qos_hdr *nullfunc;
3095 struct sk_buff *skb;
3096 int size = sizeof(*nullfunc);
3097 __le16 fc;
3098 bool qos;
3099 struct ieee80211_tx_info *info;
3100 struct sta_info *sta;
3101 struct ieee80211_chanctx_conf *chanctx_conf;
3102 enum ieee80211_band band;
3103
3104 rcu_read_lock();
3105 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3106 if (WARN_ON(!chanctx_conf)) {
3107 rcu_read_unlock();
3108 return -EINVAL;
3109 }
3110 band = chanctx_conf->def.chan->band;
3111 sta = sta_info_get(sdata, peer);
3112 if (sta) {
3113 qos = test_sta_flag(sta, WLAN_STA_WME);
3114 } else {
3115 rcu_read_unlock();
3116 return -ENOLINK;
3117 }
3118
3119 if (qos) {
3120 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3121 IEEE80211_STYPE_QOS_NULLFUNC |
3122 IEEE80211_FCTL_FROMDS);
3123 } else {
3124 size -= 2;
3125 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3126 IEEE80211_STYPE_NULLFUNC |
3127 IEEE80211_FCTL_FROMDS);
3128 }
3129
3130 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3131 if (!skb) {
3132 rcu_read_unlock();
3133 return -ENOMEM;
3134 }
3135
3136 skb->dev = dev;
3137
3138 skb_reserve(skb, local->hw.extra_tx_headroom);
3139
3140 nullfunc = (void *) skb_put(skb, size);
3141 nullfunc->frame_control = fc;
3142 nullfunc->duration_id = 0;
3143 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3144 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3145 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3146 nullfunc->seq_ctrl = 0;
3147
3148 info = IEEE80211_SKB_CB(skb);
3149
3150 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3151 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3152
3153 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3154 skb->priority = 7;
3155 if (qos)
3156 nullfunc->qos_ctrl = cpu_to_le16(7);
3157
3158 local_bh_disable();
3159 ieee80211_xmit(sdata, skb, band);
3160 local_bh_enable();
3161 rcu_read_unlock();
3162
3163 *cookie = (unsigned long) skb;
3164 return 0;
3165 }
3166
3167 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3168 struct wireless_dev *wdev,
3169 struct cfg80211_chan_def *chandef)
3170 {
3171 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3172 struct ieee80211_chanctx_conf *chanctx_conf;
3173 int ret = -ENODATA;
3174
3175 rcu_read_lock();
3176 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3177 if (chanctx_conf) {
3178 *chandef = chanctx_conf->def;
3179 ret = 0;
3180 }
3181 rcu_read_unlock();
3182
3183 return ret;
3184 }
3185
3186 #ifdef CONFIG_PM
3187 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3188 {
3189 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3190 }
3191 #endif
3192
3193 struct cfg80211_ops mac80211_config_ops = {
3194 .add_virtual_intf = ieee80211_add_iface,
3195 .del_virtual_intf = ieee80211_del_iface,
3196 .change_virtual_intf = ieee80211_change_iface,
3197 .start_p2p_device = ieee80211_start_p2p_device,
3198 .stop_p2p_device = ieee80211_stop_p2p_device,
3199 .add_key = ieee80211_add_key,
3200 .del_key = ieee80211_del_key,
3201 .get_key = ieee80211_get_key,
3202 .set_default_key = ieee80211_config_default_key,
3203 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3204 .start_ap = ieee80211_start_ap,
3205 .change_beacon = ieee80211_change_beacon,
3206 .stop_ap = ieee80211_stop_ap,
3207 .add_station = ieee80211_add_station,
3208 .del_station = ieee80211_del_station,
3209 .change_station = ieee80211_change_station,
3210 .get_station = ieee80211_get_station,
3211 .dump_station = ieee80211_dump_station,
3212 .dump_survey = ieee80211_dump_survey,
3213 #ifdef CONFIG_MAC80211_MESH
3214 .add_mpath = ieee80211_add_mpath,
3215 .del_mpath = ieee80211_del_mpath,
3216 .change_mpath = ieee80211_change_mpath,
3217 .get_mpath = ieee80211_get_mpath,
3218 .dump_mpath = ieee80211_dump_mpath,
3219 .update_mesh_config = ieee80211_update_mesh_config,
3220 .get_mesh_config = ieee80211_get_mesh_config,
3221 .join_mesh = ieee80211_join_mesh,
3222 .leave_mesh = ieee80211_leave_mesh,
3223 #endif
3224 .change_bss = ieee80211_change_bss,
3225 .set_txq_params = ieee80211_set_txq_params,
3226 .set_monitor_channel = ieee80211_set_monitor_channel,
3227 .suspend = ieee80211_suspend,
3228 .resume = ieee80211_resume,
3229 .scan = ieee80211_scan,
3230 .sched_scan_start = ieee80211_sched_scan_start,
3231 .sched_scan_stop = ieee80211_sched_scan_stop,
3232 .auth = ieee80211_auth,
3233 .assoc = ieee80211_assoc,
3234 .deauth = ieee80211_deauth,
3235 .disassoc = ieee80211_disassoc,
3236 .join_ibss = ieee80211_join_ibss,
3237 .leave_ibss = ieee80211_leave_ibss,
3238 .set_mcast_rate = ieee80211_set_mcast_rate,
3239 .set_wiphy_params = ieee80211_set_wiphy_params,
3240 .set_tx_power = ieee80211_set_tx_power,
3241 .get_tx_power = ieee80211_get_tx_power,
3242 .set_wds_peer = ieee80211_set_wds_peer,
3243 .rfkill_poll = ieee80211_rfkill_poll,
3244 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3245 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3246 .set_power_mgmt = ieee80211_set_power_mgmt,
3247 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3248 .remain_on_channel = ieee80211_remain_on_channel,
3249 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3250 .mgmt_tx = ieee80211_mgmt_tx,
3251 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3252 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3253 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3254 .set_antenna = ieee80211_set_antenna,
3255 .get_antenna = ieee80211_get_antenna,
3256 .set_ringparam = ieee80211_set_ringparam,
3257 .get_ringparam = ieee80211_get_ringparam,
3258 .set_rekey_data = ieee80211_set_rekey_data,
3259 .tdls_oper = ieee80211_tdls_oper,
3260 .tdls_mgmt = ieee80211_tdls_mgmt,
3261 .probe_client = ieee80211_probe_client,
3262 .set_noack_map = ieee80211_set_noack_map,
3263 #ifdef CONFIG_PM
3264 .set_wakeup = ieee80211_set_wakeup,
3265 #endif
3266 .get_et_sset_count = ieee80211_get_et_sset_count,
3267 .get_et_stats = ieee80211_get_et_stats,
3268 .get_et_strings = ieee80211_get_et_strings,
3269 .get_channel = ieee80211_cfg_get_channel,
3270 };
Linux with added FPC-III support