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cfg80211: vastly simplify locking
[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
f0706e82
JB		 5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
e8cbb4cb 9#include <linux/ieee80211.h>
f0706e82
JB		 10#include <linux/nl80211.h>
11#include <linux/rtnetlink.h>
5a0e3ad6 12#include <linux/slab.h>
881d966b 13#include <net/net_namespace.h>
5dfdaf58 14#include <linux/rcupdate.h>
dfe018bf 15#include <linux/if_ether.h>
f0706e82
JB		 16#include <net/cfg80211.h>
17#include "ieee80211_i.h"
24487981 18#include "driver-ops.h"
e0eb6859 19#include "cfg.h"
2c8dccc7 20#include "rate.h"
c5dd9c2b 21#include "mesh.h"
c5dd9c2b 22
552bff0c
JB		 23static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
84efbb84
JB		 25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
f0706e82
JB		 28{
29 struct ieee80211_local *local = wiphy_priv(wiphy);
84efbb84 30 struct wireless_dev *wdev;
8cc9a739
MW		 31 struct ieee80211_sub_if_data *sdata;
32 int err;
f0706e82 33
84efbb84 34 err = ieee80211_if_add(local, name, &wdev, type, params);
f9e10ce4
JB		 35 if (err)
36 return ERR_PTR(err);
8cc9a739 37
f9e10ce4 38 if (type == NL80211_IFTYPE_MONITOR && flags) {
84efbb84 39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
f9e10ce4
JB		 40 sdata->u.mntr_flags = *flags;
41 }
42
84efbb84 43 return wdev;
f0706e82
JB		 44}
45
84efbb84 46static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
f0706e82 47{
84efbb84 48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
f0706e82 49
75636525 50 return 0;
f0706e82
JB		 51}
52
e36d56b6
JB		 53static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
2ec600d6
LCC		 55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
42613db7 57{
9607e6b6 58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 59 int ret;
42613db7 60
05c914fe 61 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 62 if (ret)
63 return ret;
42613db7 64
9bc383de
JB		 65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
a9b3cd7f 67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
9bc383de
JB		 68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
85416a4f
CL		 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 }
f7917af9 102
42613db7
JB		 103 return 0;
104}
105
f142c6b9
JB		 106static int ieee80211_start_p2p_device(struct wiphy *wiphy,
107 struct wireless_dev *wdev)
108{
109 return ieee80211_do_open(wdev, true);
110}
111
112static 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
b53be792
SW		 118static 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
e8cbb4cb 128static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 129 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 130 struct key_params *params)
131{
26a58456 132 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
e8cbb4cb 133 struct sta_info *sta = NULL;
db4d1169 134 struct ieee80211_key *key;
3b96766f 135 int err;
e8cbb4cb 136
26a58456 137 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 138 return -ENETDOWN;
139
97359d12 140 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 141 switch (params->cipher) {
142 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 143 case WLAN_CIPHER_SUITE_TKIP:
97359d12
JB		 144 case WLAN_CIPHER_SUITE_WEP104:
145 if (IS_ERR(sdata->local->wep_tx_tfm))
146 return -EINVAL;
3cfcf6ac 147 break;
e8cbb4cb 148 default:
97359d12 149 break;
e8cbb4cb
JB		 150 }
151
97359d12
JB		 152 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
153 params->key, params->seq_len, params->seq);
1ac62ba7
BH		 154 if (IS_ERR(key))
155 return PTR_ERR(key);
db4d1169 156
e31b8213
JB		 157 if (pairwise)
158 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
159
ad0e2b5a 160 mutex_lock(&sdata->local->sta_mtx);
3b96766f 161
e8cbb4cb 162 if (mac_addr) {
ff973af7
TP		 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);
1626e0fa
JB		 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)) {
79cf2dfa 178 ieee80211_key_free_unused(key);
3b96766f
JB		 179 err = -ENOENT;
180 goto out_unlock;
db4d1169 181 }
e8cbb4cb
JB		 182 }
183
e548c49e
JB		 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
3ffc2a90 216 err = ieee80211_key_link(key, sdata, sta);
db4d1169 217
3b96766f 218 out_unlock:
ad0e2b5a 219 mutex_unlock(&sdata->local->sta_mtx);
3b96766f
JB		 220
221 return err;
e8cbb4cb
JB		 222}
223
224static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 225 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 226{
5c0c3641
JB		 227 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
228 struct ieee80211_local *local = sdata->local;
e8cbb4cb 229 struct sta_info *sta;
5c0c3641 230 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 231 int ret;
232
5c0c3641
JB		 233 mutex_lock(&local->sta_mtx);
234 mutex_lock(&local->key_mtx);
3b96766f 235
e8cbb4cb 236 if (mac_addr) {
3b96766f
JB		 237 ret = -ENOENT;
238
0e5ded5a 239 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 240 if (!sta)
3b96766f 241 goto out_unlock;
e8cbb4cb 242
5c0c3641 243 if (pairwise)
40b275b6 244 key = key_mtx_dereference(local, sta->ptk);
5c0c3641 245 else
40b275b6 246 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 247 } else
40b275b6 248 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 249
5c0c3641 250 if (!key) {
3b96766f
JB		 251 ret = -ENOENT;
252 goto out_unlock;
253 }
e8cbb4cb 254
3b8d9c29 255 ieee80211_key_free(key, true);
e8cbb4cb 256
3b96766f
JB		 257 ret = 0;
258 out_unlock:
5c0c3641
JB		 259 mutex_unlock(&local->key_mtx);
260 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 261
262 return ret;
e8cbb4cb
JB		 263}
264
62da92fb 265static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 266 u8 key_idx, bool pairwise, const u8 *mac_addr,
267 void *cookie,
62da92fb
JB		 268 void (*callback)(void *cookie,
269 struct key_params *params))
270{
14db74bc 271 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 272 struct sta_info *sta = NULL;
273 u8 seq[6] = {0};
274 struct key_params params;
e31b8213 275 struct ieee80211_key *key = NULL;
aba83a0b 276 u64 pn64;
62da92fb
JB		 277 u32 iv32;
278 u16 iv16;
279 int err = -ENOENT;
280
14db74bc
JB		 281 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
282
3b96766f
JB		 283 rcu_read_lock();
284
62da92fb 285 if (mac_addr) {
0e5ded5a 286 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 287 if (!sta)
288 goto out;
289
e31b8213 290 if (pairwise)
a3836e02 291 key = rcu_dereference(sta->ptk);
e31b8213 292 else if (key_idx < NUM_DEFAULT_KEYS)
a3836e02 293 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 294 } else
a3836e02 295 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 296
297 if (!key)
298 goto out;
299
300 memset(&params, 0, sizeof(params));
301
97359d12 302 params.cipher = key->conf.cipher;
62da92fb 303
97359d12
JB		 304 switch (key->conf.cipher) {
305 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 306 iv32 = key->u.tkip.tx.iv32;
307 iv16 = key->u.tkip.tx.iv16;
62da92fb 308
24487981
JB		 309 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
310 drv_get_tkip_seq(sdata->local,
311 key->conf.hw_key_idx,
312 &iv32, &iv16);
62da92fb
JB		 313
314 seq[0] = iv16 & 0xff;
315 seq[1] = (iv16 >> 8) & 0xff;
316 seq[2] = iv32 & 0xff;
317 seq[3] = (iv32 >> 8) & 0xff;
318 seq[4] = (iv32 >> 16) & 0xff;
319 seq[5] = (iv32 >> 24) & 0xff;
320 params.seq = seq;
321 params.seq_len = 6;
322 break;
97359d12 323 case WLAN_CIPHER_SUITE_CCMP:
aba83a0b
JB		 324 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
325 seq[0] = pn64;
326 seq[1] = pn64 >> 8;
327 seq[2] = pn64 >> 16;
328 seq[3] = pn64 >> 24;
329 seq[4] = pn64 >> 32;
330 seq[5] = pn64 >> 40;
62da92fb
JB		 331 params.seq = seq;
332 params.seq_len = 6;
333 break;
97359d12 334 case WLAN_CIPHER_SUITE_AES_CMAC:
75396ae6
JB		 335 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
336 seq[0] = pn64;
337 seq[1] = pn64 >> 8;
338 seq[2] = pn64 >> 16;
339 seq[3] = pn64 >> 24;
340 seq[4] = pn64 >> 32;
341 seq[5] = pn64 >> 40;
3cfcf6ac
JM		 342 params.seq = seq;
343 params.seq_len = 6;
344 break;
62da92fb
JB		 345 }
346
347 params.key = key->conf.key;
348 params.key_len = key->conf.keylen;
349
350 callback(cookie, &params);
351 err = 0;
352
353 out:
3b96766f 354 rcu_read_unlock();
62da92fb
JB		 355 return err;
356}
357
e8cbb4cb
JB		 358static int ieee80211_config_default_key(struct wiphy *wiphy,
359 struct net_device *dev,
dbd2fd65
JB		 360 u8 key_idx, bool uni,
361 bool multi)
e8cbb4cb 362{
ad0e2b5a 363 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 364
f7e0104c 365 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 366
367 return 0;
368}
369
3cfcf6ac
JM		 370static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
371 struct net_device *dev,
372 u8 key_idx)
373{
66c52421 374 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 375
3cfcf6ac
JM		 376 ieee80211_set_default_mgmt_key(sdata, key_idx);
377
3cfcf6ac
JM		 378 return 0;
379}
380
6b62bf32
TP		 381void sta_set_rate_info_tx(struct sta_info *sta,
382 const struct ieee80211_tx_rate *rate,
383 struct rate_info *rinfo)
384{
385 rinfo->flags = 0;
8bc83c24 386 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 387 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 388 rinfo->mcs = rate->idx;
389 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
390 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
391 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
392 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
393 } else {
394 struct ieee80211_supported_band *sband;
395 sband = sta->local->hw.wiphy->bands[
396 ieee80211_get_sdata_band(sta->sdata)];
397 rinfo->legacy = sband->bitrates[rate->idx].bitrate;
398 }
6b62bf32
TP		 399 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
400 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
8bc83c24
JB		 401 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
402 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
403 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
404 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
6b62bf32
TP		 405 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
406 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 407}
408
003e676a
S		 409void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
410{
411 rinfo->flags = 0;
412
413 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
414 rinfo->flags |= RATE_INFO_FLAGS_MCS;
415 rinfo->mcs = sta->last_rx_rate_idx;
416 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
417 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
418 rinfo->nss = sta->last_rx_rate_vht_nss;
419 rinfo->mcs = sta->last_rx_rate_idx;
420 } else {
421 struct ieee80211_supported_band *sband;
422
423 sband = sta->local->hw.wiphy->bands[
424 ieee80211_get_sdata_band(sta->sdata)];
425 rinfo->legacy =
426 sband->bitrates[sta->last_rx_rate_idx].bitrate;
427 }
428
429 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
430 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
431 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
432 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
433 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
434 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
435 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
436 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
437 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
438 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
439}
440
c5dd9c2b
LCC		 441static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
442{
d0709a65 443 struct ieee80211_sub_if_data *sdata = sta->sdata;
66572cfc 444 struct ieee80211_local *local = sdata->local;
ebe27c91 445 struct timespec uptime;
560d2682 446 u64 packets = 0;
ef0621e8 447 int i, ac;
c5dd9c2b 448
f5ea9120
JB		 449 sinfo->generation = sdata->local->sta_generation;
450
c5dd9c2b 451 sinfo->filled = STATION_INFO_INACTIVE_TIME |
560d2682
JB		 452 STATION_INFO_RX_BYTES64 |
453 STATION_INFO_TX_BYTES64 |
98c8a60a
JM		 454 STATION_INFO_RX_PACKETS |
455 STATION_INFO_TX_PACKETS |
b206b4ef
BR		 456 STATION_INFO_TX_RETRIES |
457 STATION_INFO_TX_FAILED |
5a5c731a 458 STATION_INFO_TX_BITRATE |
3af6334c 459 STATION_INFO_RX_BITRATE |
f4263c98 460 STATION_INFO_RX_DROP_MISC |
ebe27c91 461 STATION_INFO_BSS_PARAM |
7a724767 462 STATION_INFO_CONNECTED_TIME |
a85e1d55
PS		 463 STATION_INFO_STA_FLAGS |
464 STATION_INFO_BEACON_LOSS_COUNT;
ebe27c91
MSS		 465
466 do_posix_clock_monotonic_gettime(&uptime);
467 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
c5dd9c2b
LCC		 468
469 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
560d2682
JB		 470 sinfo->tx_bytes = 0;
471 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
472 sinfo->tx_bytes += sta->tx_bytes[ac];
473 packets += sta->tx_packets[ac];
474 }
475 sinfo->tx_packets = packets;
c5dd9c2b 476 sinfo->rx_bytes = sta->rx_bytes;
98c8a60a 477 sinfo->rx_packets = sta->rx_packets;
b206b4ef
BR		 478 sinfo->tx_retries = sta->tx_retry_count;
479 sinfo->tx_failed = sta->tx_retry_failed;
5a5c731a 480 sinfo->rx_dropped_misc = sta->rx_dropped;
a85e1d55 481 sinfo->beacon_loss_count = sta->beacon_loss_count;
c5dd9c2b 482
19deffbe
JL		 483 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
484 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
541a45a1 485 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
66572cfc
VG		 486 if (!local->ops->get_rssi ||
487 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
488 sinfo->signal = (s8)sta->last_signal;
541a45a1 489 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
420e7fab 490 }
ef0621e8
FF		 491 if (sta->chains) {
492 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
493 STATION_INFO_CHAIN_SIGNAL_AVG;
494
495 sinfo->chains = sta->chains;
496 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
497 sinfo->chain_signal[i] = sta->chain_signal_last[i];
498 sinfo->chain_signal_avg[i] =
499 (s8) -ewma_read(&sta->chain_signal_avg[i]);
500 }
501 }
420e7fab 502
6b62bf32 503 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
003e676a 504 sta_set_rate_info_rx(sta, &sinfo->rxrate);
420e7fab 505
902acc78 506 if (ieee80211_vif_is_mesh(&sdata->vif)) {
c5dd9c2b 507#ifdef CONFIG_MAC80211_MESH
c5dd9c2b
LCC		 508 sinfo->filled |= STATION_INFO_LLID |
509 STATION_INFO_PLID |
3f52b7e3
MP		 510 STATION_INFO_PLINK_STATE |
511 STATION_INFO_LOCAL_PM |
512 STATION_INFO_PEER_PM |
513 STATION_INFO_NONPEER_PM;
c5dd9c2b
LCC		 514
515 sinfo->llid = le16_to_cpu(sta->llid);
516 sinfo->plid = le16_to_cpu(sta->plid);
517 sinfo->plink_state = sta->plink_state;
d299a1f2
JC		 518 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
519 sinfo->filled |= STATION_INFO_T_OFFSET;
520 sinfo->t_offset = sta->t_offset;
521 }
3f52b7e3
MP		 522 sinfo->local_pm = sta->local_pm;
523 sinfo->peer_pm = sta->peer_pm;
524 sinfo->nonpeer_pm = sta->nonpeer_pm;
c5dd9c2b 525#endif
902acc78 526 }
f4263c98
PS		 527
528 sinfo->bss_param.flags = 0;
529 if (sdata->vif.bss_conf.use_cts_prot)
530 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
531 if (sdata->vif.bss_conf.use_short_preamble)
532 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
533 if (sdata->vif.bss_conf.use_short_slot)
534 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
535 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
536 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
7a724767
HS		 537
538 sinfo->sta_flags.set = 0;
539 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
540 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
541 BIT(NL80211_STA_FLAG_WME) |
542 BIT(NL80211_STA_FLAG_MFP) |
e4121562 543 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
d582cffb 544 BIT(NL80211_STA_FLAG_ASSOCIATED) |
e4121562 545 BIT(NL80211_STA_FLAG_TDLS_PEER);
7a724767
HS		 546 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
547 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
548 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
549 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
550 if (test_sta_flag(sta, WLAN_STA_WME))
551 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
552 if (test_sta_flag(sta, WLAN_STA_MFP))
553 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
554 if (test_sta_flag(sta, WLAN_STA_AUTH))
555 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
d582cffb
JB		 556 if (test_sta_flag(sta, WLAN_STA_ASSOC))
557 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
e4121562
HS		 558 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
559 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
c5dd9c2b
LCC		 560}
561
b1ab7925
BG		 562static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
563 "rx_packets", "rx_bytes", "wep_weak_iv_count",
564 "rx_duplicates", "rx_fragments", "rx_dropped",
565 "tx_packets", "tx_bytes", "tx_fragments",
566 "tx_filtered", "tx_retry_failed", "tx_retries",
3073a7c2
BG		 567 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
568 "channel", "noise", "ch_time", "ch_time_busy",
569 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
b1ab7925
BG		 570};
571#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
572
573static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
574 struct net_device *dev,
575 int sset)
576{
e352114f
BG		 577 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
578 int rv = 0;
579
b1ab7925 580 if (sset == ETH_SS_STATS)
e352114f
BG		 581 rv += STA_STATS_LEN;
582
583 rv += drv_get_et_sset_count(sdata, sset);
b1ab7925 584
e352114f
BG		 585 if (rv == 0)
586 return -EOPNOTSUPP;
587 return rv;
b1ab7925
BG		 588}
589
590static void ieee80211_get_et_stats(struct wiphy *wiphy,
591 struct net_device *dev,
592 struct ethtool_stats *stats,
593 u64 *data)
594{
595 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a
JB		 596 struct ieee80211_chanctx_conf *chanctx_conf;
597 struct ieee80211_channel *channel;
b1ab7925
BG		 598 struct sta_info *sta;
599 struct ieee80211_local *local = sdata->local;
3073a7c2
BG		 600 struct station_info sinfo;
601 struct survey_info survey;
602 int i, q;
603#define STA_STATS_SURVEY_LEN 7
b1ab7925
BG		 604
605 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
606
607#define ADD_STA_STATS(sta) \
608 do { \
609 data[i++] += sta->rx_packets; \
610 data[i++] += sta->rx_bytes; \
611 data[i++] += sta->wep_weak_iv_count; \
612 data[i++] += sta->num_duplicates; \
613 data[i++] += sta->rx_fragments; \
614 data[i++] += sta->rx_dropped; \
615 \
560d2682
JB		 616 data[i++] += sinfo.tx_packets; \
617 data[i++] += sinfo.tx_bytes; \
b1ab7925
BG		 618 data[i++] += sta->tx_fragments; \
619 data[i++] += sta->tx_filtered_count; \
620 data[i++] += sta->tx_retry_failed; \
621 data[i++] += sta->tx_retry_count; \
622 data[i++] += sta->beacon_loss_count; \
623 } while (0)
624
625 /* For Managed stations, find the single station based on BSSID
626 * and use that. For interface types, iterate through all available
627 * stations and add stats for any station that is assigned to this
628 * network device.
629 */
630
66572cfc 631 mutex_lock(&local->sta_mtx);
b1ab7925
BG		 632
633 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
634 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
3073a7c2
BG		 635
636 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
637 goto do_survey;
638
560d2682
JB		 639 sinfo.filled = 0;
640 sta_set_sinfo(sta, &sinfo);
641
3073a7c2
BG		 642 i = 0;
643 ADD_STA_STATS(sta);
644
645 data[i++] = sta->sta_state;
646
3073a7c2 647
5204267d 648 if (sinfo.filled & STATION_INFO_TX_BITRATE)
3073a7c2
BG		 649 data[i] = 100000 *
650 cfg80211_calculate_bitrate(&sinfo.txrate);
651 i++;
5204267d 652 if (sinfo.filled & STATION_INFO_RX_BITRATE)
3073a7c2
BG		 653 data[i] = 100000 *
654 cfg80211_calculate_bitrate(&sinfo.rxrate);
655 i++;
656
5204267d 657 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
3073a7c2
BG		 658 data[i] = (u8)sinfo.signal_avg;
659 i++;
b1ab7925 660 } else {
66572cfc 661 list_for_each_entry(sta, &local->sta_list, list) {
b1ab7925
BG		 662 /* Make sure this station belongs to the proper dev */
663 if (sta->sdata->dev != dev)
664 continue;
665
666 i = 0;
667 ADD_STA_STATS(sta);
b1ab7925
BG		 668 }
669 }
670
3073a7c2
BG		 671do_survey:
672 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
673 /* Get survey stats for current channel */
55de908a 674 survey.filled = 0;
3073a7c2 675
55de908a
JB		 676 rcu_read_lock();
677 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
678 if (chanctx_conf)
4bf88530 679 channel = chanctx_conf->def.chan;
55de908a
JB		 680 else
681 channel = NULL;
682 rcu_read_unlock();
683
684 if (channel) {
685 q = 0;
686 do {
687 survey.filled = 0;
688 if (drv_get_survey(local, q, &survey) != 0) {
689 survey.filled = 0;
690 break;
691 }
692 q++;
693 } while (channel != survey.channel);
3073a7c2
BG		 694 }
695
696 if (survey.filled)
697 data[i++] = survey.channel->center_freq;
698 else
699 data[i++] = 0;
700 if (survey.filled & SURVEY_INFO_NOISE_DBM)
701 data[i++] = (u8)survey.noise;
702 else
703 data[i++] = -1LL;
704 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
705 data[i++] = survey.channel_time;
706 else
707 data[i++] = -1LL;
708 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
709 data[i++] = survey.channel_time_busy;
710 else
711 data[i++] = -1LL;
712 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
713 data[i++] = survey.channel_time_ext_busy;
714 else
715 data[i++] = -1LL;
716 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
717 data[i++] = survey.channel_time_rx;
718 else
719 data[i++] = -1LL;
720 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
721 data[i++] = survey.channel_time_tx;
722 else
723 data[i++] = -1LL;
724
66572cfc 725 mutex_unlock(&local->sta_mtx);
e352114f 726
3073a7c2
BG		 727 if (WARN_ON(i != STA_STATS_LEN))
728 return;
729
e352114f 730 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
b1ab7925
BG		 731}
732
733static void ieee80211_get_et_strings(struct wiphy *wiphy,
734 struct net_device *dev,
735 u32 sset, u8 *data)
736{
e352114f
BG		 737 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
738 int sz_sta_stats = 0;
739
b1ab7925 740 if (sset == ETH_SS_STATS) {
e352114f 741 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
bd500af2 742 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
b1ab7925 743 }
e352114f 744 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
b1ab7925 745}
c5dd9c2b
LCC		 746
747static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
748 int idx, u8 *mac, struct station_info *sinfo)
749{
3b53fde8 750 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 751 struct ieee80211_local *local = sdata->local;
c5dd9c2b 752 struct sta_info *sta;
d0709a65
JB		 753 int ret = -ENOENT;
754
66572cfc 755 mutex_lock(&local->sta_mtx);
c5dd9c2b 756
3b53fde8 757 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 758 if (sta) {
759 ret = 0;
17741cdc 760 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 761 sta_set_sinfo(sta, sinfo);
762 }
c5dd9c2b 763
66572cfc 764 mutex_unlock(&local->sta_mtx);
c5dd9c2b 765
d0709a65 766 return ret;
c5dd9c2b
LCC		 767}
768
1289723e
HS		 769static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
770 int idx, struct survey_info *survey)
771{
772 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
773
1289723e
HS		 774 return drv_get_survey(local, idx, survey);
775}
776
7bbdd2d9 777static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
2ec600d6 778 u8 *mac, struct station_info *sinfo)
7bbdd2d9 779{
abe60632 780 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 781 struct ieee80211_local *local = sdata->local;
7bbdd2d9 782 struct sta_info *sta;
d0709a65 783 int ret = -ENOENT;
7bbdd2d9 784
66572cfc 785 mutex_lock(&local->sta_mtx);
7bbdd2d9 786
0e5ded5a 787 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 788 if (sta) {
789 ret = 0;
790 sta_set_sinfo(sta, sinfo);
791 }
792
66572cfc 793 mutex_unlock(&local->sta_mtx);
d0709a65
JB		 794
795 return ret;
7bbdd2d9
JB		 796}
797
55de908a 798static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
683b6d3b 799 struct cfg80211_chan_def *chandef)
3d9e6e12
JB		 800{
801 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a
JB		 802 struct ieee80211_sub_if_data *sdata;
803 int ret = 0;
3d9e6e12 804
4bf88530 805 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
55de908a 806 return 0;
3d9e6e12 807
55de908a
JB		 808 mutex_lock(&local->iflist_mtx);
809 if (local->use_chanctx) {
810 sdata = rcu_dereference_protected(
811 local->monitor_sdata,
812 lockdep_is_held(&local->iflist_mtx));
813 if (sdata) {
814 ieee80211_vif_release_channel(sdata);
4bf88530 815 ret = ieee80211_vif_use_channel(sdata, chandef,
55de908a
JB		 816 IEEE80211_CHANCTX_EXCLUSIVE);
817 }
818 } else if (local->open_count == local->monitors) {
675a0b04 819 local->_oper_chandef = *chandef;
55de908a
JB		 820 ieee80211_hw_config(local, 0);
821 }
3d9e6e12 822
4bf88530
JB		 823 if (ret == 0)
824 local->monitor_chandef = *chandef;
55de908a 825 mutex_unlock(&local->iflist_mtx);
3d9e6e12 826
55de908a 827 return ret;
e8c9bd5b
JB		 828}
829
02945821 830static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
8860020e 831 const u8 *resp, size_t resp_len)
02945821 832{
aa7a0080 833 struct probe_resp *new, *old;
02945821
AN		 834
835 if (!resp || !resp_len)
aba4e6ff 836 return 1;
02945821 837
f724828b 838 old = rtnl_dereference(sdata->u.ap.probe_resp);
02945821 839
aa7a0080 840 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
02945821
AN		 841 if (!new)
842 return -ENOMEM;
843
aa7a0080
ES		 844 new->len = resp_len;
845 memcpy(new->data, resp, resp_len);
02945821
AN		 846
847 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
aa7a0080
ES		 848 if (old)
849 kfree_rcu(old, rcu_head);
02945821
AN		 850
851 return 0;
852}
853
8860020e
JB		 854static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
855 struct cfg80211_beacon_data *params)
5dfdaf58
JB		 856{
857 struct beacon_data *new, *old;
858 int new_head_len, new_tail_len;
8860020e
JB		 859 int size, err;
860 u32 changed = BSS_CHANGED_BEACON;
5dfdaf58 861
40b275b6 862 old = rtnl_dereference(sdata->u.ap.beacon);
5dfdaf58 863
5dfdaf58
JB		 864 /* Need to have a beacon head if we don't have one yet */
865 if (!params->head && !old)
8860020e 866 return -EINVAL;
5dfdaf58
JB		 867
868 /* new or old head? */
869 if (params->head)
870 new_head_len = params->head_len;
871 else
872 new_head_len = old->head_len;
873
874 /* new or old tail? */
875 if (params->tail || !old)
876 /* params->tail_len will be zero for !params->tail */
877 new_tail_len = params->tail_len;
878 else
879 new_tail_len = old->tail_len;
880
881 size = sizeof(*new) + new_head_len + new_tail_len;
882
883 new = kzalloc(size, GFP_KERNEL);
884 if (!new)
885 return -ENOMEM;
886
887 /* start filling the new info now */
888
5dfdaf58
JB		 889 /*
890 * pointers go into the block we allocated,
891 * memory is | beacon_data | head | tail |
892 */
893 new->head = ((u8 *) new) + sizeof(*new);
894 new->tail = new->head + new_head_len;
895 new->head_len = new_head_len;
896 new->tail_len = new_tail_len;
897
898 /* copy in head */
899 if (params->head)
900 memcpy(new->head, params->head, new_head_len);
901 else
902 memcpy(new->head, old->head, new_head_len);
903
904 /* copy in optional tail */
905 if (params->tail)
906 memcpy(new->tail, params->tail, new_tail_len);
907 else
908 if (old)
909 memcpy(new->tail, old->tail, new_tail_len);
910
02945821
AN		 911 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
912 params->probe_resp_len);
8860020e
JB		 913 if (err < 0)
914 return err;
915 if (err == 0)
02945821
AN		 916 changed |= BSS_CHANGED_AP_PROBE_RESP;
917
8860020e
JB		 918 rcu_assign_pointer(sdata->u.ap.beacon, new);
919
920 if (old)
921 kfree_rcu(old, rcu_head);
7827493b 922
8860020e 923 return changed;
5dfdaf58
JB		 924}
925
8860020e
JB		 926static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
927 struct cfg80211_ap_settings *params)
5dfdaf58 928{
8860020e 929 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5dfdaf58 930 struct beacon_data *old;
665c93a9 931 struct ieee80211_sub_if_data *vlan;
8860020e
JB		 932 u32 changed = BSS_CHANGED_BEACON_INT |
933 BSS_CHANGED_BEACON_ENABLED |
934 BSS_CHANGED_BEACON |
339afbf4
JB		 935 BSS_CHANGED_SSID |
936 BSS_CHANGED_P2P_PS;
8860020e 937 int err;
14db74bc 938
40b275b6 939 old = rtnl_dereference(sdata->u.ap.beacon);
5dfdaf58
JB		 940 if (old)
941 return -EALREADY;
942
04ecd257
JB		 943 /* TODO: make hostapd tell us what it wants */
944 sdata->smps_mode = IEEE80211_SMPS_OFF;
945 sdata->needed_rx_chains = sdata->local->rx_chains;
164eb02d 946 sdata->radar_required = params->radar_required;
04ecd257 947
4bf88530 948 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 949 IEEE80211_CHANCTX_SHARED);
aa430da4
JB		 950 if (err)
951 return err;
1f4ac5a6 952 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
aa430da4 953
665c93a9
JB		 954 /*
955 * Apply control port protocol, this allows us to
956 * not encrypt dynamic WEP control frames.
957 */
958 sdata->control_port_protocol = params->crypto.control_port_ethertype;
959 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
960 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
961 vlan->control_port_protocol =
962 params->crypto.control_port_ethertype;
963 vlan->control_port_no_encrypt =
964 params->crypto.control_port_no_encrypt;
965 }
966
8860020e
JB		 967 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
968 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 969 sdata->vif.bss_conf.enable_beacon = true;
8860020e
JB		 970
971 sdata->vif.bss_conf.ssid_len = params->ssid_len;
972 if (params->ssid_len)
973 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
974 params->ssid_len);
975 sdata->vif.bss_conf.hidden_ssid =
976 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
977
67baf663
JD		 978 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
979 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
980 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
981 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
982 if (params->p2p_opp_ps)
983 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
984 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 985
8860020e
JB		 986 err = ieee80211_assign_beacon(sdata, &params->beacon);
987 if (err < 0)
988 return err;
989 changed |= err;
990
1041638f
JB		 991 err = drv_start_ap(sdata->local, sdata);
992 if (err) {
993 old = rtnl_dereference(sdata->u.ap.beacon);
994 if (old)
995 kfree_rcu(old, rcu_head);
996 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
997 return err;
998 }
999
8860020e
JB		 1000 ieee80211_bss_info_change_notify(sdata, changed);
1001
3edaf3e6
JB		 1002 netif_carrier_on(dev);
1003 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1004 netif_carrier_on(vlan->dev);
1005
665c93a9 1006 return 0;
5dfdaf58
JB		 1007}
1008
8860020e
JB		 1009static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1010 struct cfg80211_beacon_data *params)
5dfdaf58 1011{
14db74bc 1012 struct ieee80211_sub_if_data *sdata;
5dfdaf58 1013 struct beacon_data *old;
8860020e 1014 int err;
5dfdaf58 1015
14db74bc
JB		 1016 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1017
40b275b6 1018 old = rtnl_dereference(sdata->u.ap.beacon);
5dfdaf58
JB		 1019 if (!old)
1020 return -ENOENT;
1021
8860020e
JB		 1022 err = ieee80211_assign_beacon(sdata, params);
1023 if (err < 0)
1024 return err;
1025 ieee80211_bss_info_change_notify(sdata, err);
1026 return 0;
5dfdaf58
JB		 1027}
1028
8860020e 1029static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 1030{
7b20b8e8
JB		 1031 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1032 struct ieee80211_sub_if_data *vlan;
1033 struct ieee80211_local *local = sdata->local;
1034 struct beacon_data *old_beacon;
1035 struct probe_resp *old_probe_resp;
14db74bc 1036
7b20b8e8
JB		 1037 old_beacon = rtnl_dereference(sdata->u.ap.beacon);
1038 if (!old_beacon)
5dfdaf58 1039 return -ENOENT;
7b20b8e8 1040 old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp);
5dfdaf58 1041
7b20b8e8 1042 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 1043 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1044 netif_carrier_off(vlan->dev);
1045 netif_carrier_off(dev);
1046
7b20b8e8 1047 /* remove beacon and probe response */
a9b3cd7f 1048 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 1049 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1050 kfree_rcu(old_beacon, rcu_head);
1051 if (old_probe_resp)
1052 kfree_rcu(old_probe_resp, rcu_head);
8860020e 1053
2d4072a5 1054 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
75de9113
JB		 1055 sta_info_flush_defer(vlan);
1056 sta_info_flush_defer(sdata);
8ceb5955 1057 synchronize_net();
75de9113 1058 rcu_barrier();
7b4396bd 1059 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
75de9113 1060 sta_info_flush_cleanup(vlan);
7b4396bd
JB		 1061 ieee80211_free_keys(vlan);
1062 }
75de9113 1063 sta_info_flush_cleanup(sdata);
7b4396bd 1064 ieee80211_free_keys(sdata);
75de9113 1065
d6a83228 1066 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 1067 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 1068 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 1069 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 1070
1041638f
JB		 1071 drv_stop_ap(sdata->local, sdata);
1072
7b20b8e8
JB		 1073 /* free all potentially still buffered bcast frames */
1074 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1075 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1076
1f4ac5a6 1077 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a
JB		 1078 ieee80211_vif_release_channel(sdata);
1079
2d0ddec5 1080 return 0;
5dfdaf58
JB		 1081}
1082
4fd6931e
JB		 1083/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1084struct iapp_layer2_update {
1085 u8 da[ETH_ALEN]; /* broadcast */
1086 u8 sa[ETH_ALEN]; /* STA addr */
1087 __be16 len; /* 6 */
1088 u8 dsap; /* 0 */
1089 u8 ssap; /* 0 */
1090 u8 control;
1091 u8 xid_info[3];
bc10502d 1092} __packed;
4fd6931e
JB		 1093
1094static void ieee80211_send_layer2_update(struct sta_info *sta)
1095{
1096 struct iapp_layer2_update *msg;
1097 struct sk_buff *skb;
1098
1099 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1100 * bridge devices */
1101
1102 skb = dev_alloc_skb(sizeof(*msg));
1103 if (!skb)
1104 return;
1105 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1106
1107 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1108 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1109
e83e6541 1110 eth_broadcast_addr(msg->da);
17741cdc 1111 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 1112 msg->len = htons(6);
1113 msg->dsap = 0;
1114 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1115 msg->control = 0xaf; /* XID response lsb.1111F101.
1116 * F=0 (no poll command; unsolicited frame) */
1117 msg->xid_info[0] = 0x81; /* XID format identifier */
1118 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1119 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1120
d0709a65
JB		 1121 skb->dev = sta->sdata->dev;
1122 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 1123 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 1124 netif_rx_ni(skb);
4fd6931e
JB		 1125}
1126
d582cffb
JB		 1127static int sta_apply_auth_flags(struct ieee80211_local *local,
1128 struct sta_info *sta,
1129 u32 mask, u32 set)
1130{
1131 int ret;
1132
1133 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1134 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 }
1140
1141 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1142 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1143 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1144 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1145 if (ret)
1146 return ret;
1147 }
1148
1149 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1150 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1151 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1152 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1153 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1154 else
1155 ret = 0;
1156 if (ret)
1157 return ret;
1158 }
1159
1160 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1161 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1162 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1163 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1164 if (ret)
1165 return ret;
1166 }
1167
1168 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1169 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1170 test_sta_flag(sta, WLAN_STA_AUTH)) {
1171 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1172 if (ret)
1173 return ret;
1174 }
1175
1176 return 0;
1177}
1178
d9a7ddb0
JB		 1179static int sta_apply_parameters(struct ieee80211_local *local,
1180 struct sta_info *sta,
1181 struct station_parameters *params)
4fd6931e 1182{
d9a7ddb0 1183 int ret = 0;
4fd6931e
JB		 1184 u32 rates;
1185 int i, j;
8318d78a 1186 struct ieee80211_supported_band *sband;
d0709a65 1187 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 1188 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1189 u32 mask, set;
4fd6931e 1190
55de908a 1191 sband = local->hw.wiphy->bands[band];
ae5eb026 1192
eccb8e8f
JB		 1193 mask = params->sta_flags_mask;
1194 set = params->sta_flags_set;
73651ee6 1195
d582cffb
JB		 1196 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1197 /*
1198 * In mesh mode, ASSOCIATED isn't part of the nl80211
1199 * API but must follow AUTHENTICATED for driver state.
1200 */
1201 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1202 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1203 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1204 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1205 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1206 /*
1207 * TDLS -- everything follows authorized, but
1208 * only becoming authorized is possible, not
1209 * going back
1210 */
1211 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1212 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1213 BIT(NL80211_STA_FLAG_ASSOCIATED);
1214 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1215 BIT(NL80211_STA_FLAG_ASSOCIATED);
1216 }
eccb8e8f 1217 }
4fd6931e 1218
d582cffb
JB		 1219 ret = sta_apply_auth_flags(local, sta, mask, set);
1220 if (ret)
1221 return ret;
d9a7ddb0 1222
eccb8e8f 1223 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1224 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1225 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1226 else
1227 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1228 }
4fd6931e 1229
eccb8e8f 1230 if (mask & BIT(NL80211_STA_FLAG_WME)) {
39df600a 1231 if (set & BIT(NL80211_STA_FLAG_WME)) {
c2c98fde 1232 set_sta_flag(sta, WLAN_STA_WME);
39df600a 1233 sta->sta.wme = true;
c2c98fde
JB		 1234 } else {
1235 clear_sta_flag(sta, WLAN_STA_WME);
1236 sta->sta.wme = false;
39df600a 1237 }
eccb8e8f 1238 }
5394af4d 1239
eccb8e8f 1240 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1241 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1242 set_sta_flag(sta, WLAN_STA_MFP);
1243 else
1244 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1245 }
b39c48fa 1246
07ba55d7 1247 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1248 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1249 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1250 else
1251 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1252 }
4fd6931e 1253
3b9ce80c
JB		 1254 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1255 sta->sta.uapsd_queues = params->uapsd_queues;
1256 sta->sta.max_sp = params->max_sp;
1257 }
9533b4ac 1258
51b50fbe
JB		 1259 /*
1260 * cfg80211 validates this (1-2007) and allows setting the AID
1261 * only when creating a new station entry
1262 */
1263 if (params->aid)
1264 sta->sta.aid = params->aid;
1265
73651ee6 1266 /*
ba23d206
JB		 1267 * Some of the following updates would be racy if called on an
1268 * existing station, via ieee80211_change_station(). However,
1269 * all such changes are rejected by cfg80211 except for updates
1270 * changing the supported rates on an existing but not yet used
1271 * TDLS peer.
73651ee6
JB		 1272 */
1273
4fd6931e
JB		 1274 if (params->listen_interval >= 0)
1275 sta->listen_interval = params->listen_interval;
1276
1277 if (params->supported_rates) {
1278 rates = 0;
8318d78a 1279
4fd6931e
JB		 1280 for (i = 0; i < params->supported_rates_len; i++) {
1281 int rate = (params->supported_rates[i] & 0x7f) * 5;
8318d78a
JB		 1282 for (j = 0; j < sband->n_bitrates; j++) {
1283 if (sband->bitrates[j].bitrate == rate)
4fd6931e
JB		 1284 rates |= BIT(j);
1285 }
1286 }
55de908a 1287 sta->sta.supp_rates[band] = rates;
4fd6931e 1288 }
c5dd9c2b 1289
d9fe60de 1290 if (params->ht_capa)
ef96a842 1291 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1292 params->ht_capa, sta);
36aedc90 1293
f461be3e
MP		 1294 if (params->vht_capa)
1295 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1296 params->vht_capa, sta);
f461be3e 1297
9c3990aa 1298 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1299#ifdef CONFIG_MAC80211_MESH
39886b61 1300 u32 changed = 0;
77ee7c89
JB		 1301
1302 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1303 switch (params->plink_state) {
57cf8043 1304 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1305 if (sta->plink_state != NL80211_PLINK_ESTAB)
1306 changed = mesh_plink_inc_estab_count(
1307 sdata);
1308 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1309
1310 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1311 changed |= ieee80211_mps_set_sta_local_pm(sta,
1312 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1313 break;
1314 case NL80211_PLINK_LISTEN:
57cf8043 1315 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1316 case NL80211_PLINK_OPN_SNT:
1317 case NL80211_PLINK_OPN_RCVD:
1318 case NL80211_PLINK_CNF_RCVD:
1319 case NL80211_PLINK_HOLDING:
1320 if (sta->plink_state == NL80211_PLINK_ESTAB)
1321 changed = mesh_plink_dec_estab_count(
1322 sdata);
9c3990aa 1323 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1324
1325 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1326 changed |=
1327 ieee80211_mps_local_status_update(sdata);
9c3990aa
JC		 1328 break;
1329 default:
1330 /* nothing */
1331 break;
1332 }
77ee7c89
JB		 1333 }
1334
1335 switch (params->plink_action) {
1336 case NL80211_PLINK_ACTION_NO_ACTION:
1337 /* nothing */
1338 break;
1339 case NL80211_PLINK_ACTION_OPEN:
1340 changed |= mesh_plink_open(sta);
1341 break;
1342 case NL80211_PLINK_ACTION_BLOCK:
1343 changed |= mesh_plink_block(sta);
1344 break;
1617bab8 1345 }
3f52b7e3
MP		 1346
1347 if (params->local_pm)
39886b61
TP		 1348 changed |=
1349 ieee80211_mps_set_sta_local_pm(sta,
1350 params->local_pm);
1351 ieee80211_bss_info_change_notify(sdata, changed);
4daf50f2 1352#endif
902acc78 1353 }
d9a7ddb0
JB		 1354
1355 return 0;
4fd6931e
JB		 1356}
1357
1358static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1359 u8 *mac, struct station_parameters *params)
1360{
14db74bc 1361 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1362 struct sta_info *sta;
1363 struct ieee80211_sub_if_data *sdata;
73651ee6 1364 int err;
b8d476c8 1365 int layer2_update;
4fd6931e 1366
4fd6931e
JB		 1367 if (params->vlan) {
1368 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1369
05c914fe
JB		 1370 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1371 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1372 return -EINVAL;
1373 } else
1374 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1375
b203ca39 1376 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1377 return -EINVAL;
1378
1379 if (is_multicast_ether_addr(mac))
1380 return -EINVAL;
1381
1382 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1383 if (!sta)
1384 return -ENOMEM;
4fd6931e 1385
d582cffb
JB		 1386 /*
1387 * defaults -- if userspace wants something else we'll
1388 * change it accordingly in sta_apply_parameters()
1389 */
77ee7c89
JB		 1390 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1391 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1392 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1393 }
4fd6931e 1394
d9a7ddb0
JB		 1395 err = sta_apply_parameters(local, sta, params);
1396 if (err) {
1397 sta_info_free(local, sta);
1398 return err;
1399 }
4fd6931e 1400
d64cf63e 1401 /*
77ee7c89
JB		 1402 * for TDLS, rate control should be initialized only when
1403 * rates are known and station is marked authorized
d64cf63e
AN		 1404 */
1405 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1406 rate_control_rate_init(sta);
4fd6931e 1407
b8d476c8
JM		 1408 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1409 sdata->vif.type == NL80211_IFTYPE_AP;
1410
34e89507 1411 err = sta_info_insert_rcu(sta);
73651ee6 1412 if (err) {
73651ee6
JB		 1413 rcu_read_unlock();
1414 return err;
1415 }
1416
b8d476c8 1417 if (layer2_update)
73651ee6
JB		 1418 ieee80211_send_layer2_update(sta);
1419
1420 rcu_read_unlock();
1421
4fd6931e
JB		 1422 return 0;
1423}
1424
1425static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1426 u8 *mac)
1427{
14db74bc 1428 struct ieee80211_sub_if_data *sdata;
4fd6931e 1429
14db74bc
JB		 1430 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1431
34e89507
JB		 1432 if (mac)
1433 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 1434
b998e8bb 1435 sta_info_flush(sdata);
4fd6931e
JB		 1436 return 0;
1437}
1438
1439static int ieee80211_change_station(struct wiphy *wiphy,
77ee7c89 1440 struct net_device *dev, u8 *mac,
4fd6931e
JB		 1441 struct station_parameters *params)
1442{
abe60632 1443 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1444 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1445 struct sta_info *sta;
1446 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1447 enum cfg80211_station_type statype;
35b88623 1448 int err;
4fd6931e 1449
87be1e1e 1450 mutex_lock(&local->sta_mtx);
98dd6a57 1451
0e5ded5a 1452 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1453 if (!sta) {
77ee7c89
JB		 1454 err = -ENOENT;
1455 goto out_err;
98dd6a57 1456 }
4fd6931e 1457
77ee7c89
JB		 1458 switch (sdata->vif.type) {
1459 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1460 if (sdata->u.mesh.user_mpm)
eef941e6 1461 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1462 else
eef941e6 1463 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1464 break;
1465 case NL80211_IFTYPE_ADHOC:
1466 statype = CFG80211_STA_IBSS;
1467 break;
1468 case NL80211_IFTYPE_STATION:
1469 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1470 statype = CFG80211_STA_AP_STA;
1471 break;
1472 }
1473 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1474 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1475 else
1476 statype = CFG80211_STA_TDLS_PEER_SETUP;
1477 break;
1478 case NL80211_IFTYPE_AP:
1479 case NL80211_IFTYPE_AP_VLAN:
1480 statype = CFG80211_STA_AP_CLIENT;
1481 break;
1482 default:
1483 err = -EOPNOTSUPP;
1484 goto out_err;
bdd90d5e
JB		 1485 }
1486
77ee7c89
JB		 1487 err = cfg80211_check_station_change(wiphy, params, statype);
1488 if (err)
1489 goto out_err;
1490
d0709a65 1491 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1492 bool prev_4addr = false;
1493 bool new_4addr = false;
1494
4fd6931e
JB		 1495 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1496
9bc383de 1497 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1498 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1499 err = -EBUSY;
1500 goto out_err;
3305443c 1501 }
f14543ee 1502
cf778b00 1503 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1504 new_4addr = true;
1505 }
1506
1507 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1508 sta->sdata->u.vlan.sta) {
1509 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1510 prev_4addr = true;
f14543ee
FF		 1511 }
1512
14db74bc 1513 sta->sdata = vlansdata;
7e3ed02c
FF		 1514
1515 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1516 prev_4addr != new_4addr) {
1517 if (new_4addr)
1518 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1519 else
1520 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1521 }
1522
4fd6931e
JB		 1523 ieee80211_send_layer2_update(sta);
1524 }
1525
35b88623 1526 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1527 if (err)
1528 goto out_err;
4fd6931e 1529
77ee7c89
JB		 1530 /* When peer becomes authorized, init rate control as well */
1531 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1532 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
d64cf63e
AN		 1533 rate_control_rate_init(sta);
1534
87be1e1e 1535 mutex_unlock(&local->sta_mtx);
98dd6a57 1536
808118cb 1537 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1538 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1539 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1540 ieee80211_recalc_ps_vif(sdata);
1541 }
77ee7c89 1542
4fd6931e 1543 return 0;
77ee7c89
JB		 1544out_err:
1545 mutex_unlock(&local->sta_mtx);
1546 return err;
4fd6931e
JB		 1547}
1548
c5dd9c2b
LCC		 1549#ifdef CONFIG_MAC80211_MESH
1550static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1551 u8 *dst, u8 *next_hop)
1552{
14db74bc 1553 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1554 struct mesh_path *mpath;
1555 struct sta_info *sta;
c5dd9c2b 1556
14db74bc
JB		 1557 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1558
d0709a65 1559 rcu_read_lock();
abe60632 1560 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1561 if (!sta) {
1562 rcu_read_unlock();
c5dd9c2b 1563 return -ENOENT;
d0709a65 1564 }
c5dd9c2b 1565
ae76eef0
BC		 1566 mpath = mesh_path_add(sdata, dst);
1567 if (IS_ERR(mpath)) {
d0709a65 1568 rcu_read_unlock();
ae76eef0 1569 return PTR_ERR(mpath);
d0709a65 1570 }
c5dd9c2b 1571
c5dd9c2b 1572 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1573
c5dd9c2b
LCC		 1574 rcu_read_unlock();
1575 return 0;
1576}
1577
1578static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
bf7cd94d 1579 u8 *dst)
c5dd9c2b 1580{
f698d856
JBG		 1581 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1582
c5dd9c2b 1583 if (dst)
bf7cd94d 1584 return mesh_path_del(sdata, dst);
c5dd9c2b 1585
ece1a2e7 1586 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1587 return 0;
1588}
1589
1590static int ieee80211_change_mpath(struct wiphy *wiphy,
1591 struct net_device *dev,
1592 u8 *dst, u8 *next_hop)
1593{
14db74bc 1594 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1595 struct mesh_path *mpath;
1596 struct sta_info *sta;
1597
14db74bc
JB		 1598 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1599
d0709a65
JB		 1600 rcu_read_lock();
1601
abe60632 1602 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1603 if (!sta) {
1604 rcu_read_unlock();
c5dd9c2b 1605 return -ENOENT;
d0709a65 1606 }
c5dd9c2b 1607
bf7cd94d 1608 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1609 if (!mpath) {
1610 rcu_read_unlock();
c5dd9c2b
LCC		 1611 return -ENOENT;
1612 }
1613
1614 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1615
c5dd9c2b
LCC		 1616 rcu_read_unlock();
1617 return 0;
1618}
1619
1620static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1621 struct mpath_info *pinfo)
1622{
a3836e02
JB		 1623 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1624
1625 if (next_hop_sta)
1626 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1627 else
1628 memset(next_hop, 0, ETH_ALEN);
1629
7ce8c7a3
LAYS		 1630 memset(pinfo, 0, sizeof(*pinfo));
1631
f5ea9120
JB		 1632 pinfo->generation = mesh_paths_generation;
1633
c5dd9c2b 1634 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1635 MPATH_INFO_SN |
c5dd9c2b
LCC		 1636 MPATH_INFO_METRIC |
1637 MPATH_INFO_EXPTIME |
1638 MPATH_INFO_DISCOVERY_TIMEOUT |
1639 MPATH_INFO_DISCOVERY_RETRIES |
1640 MPATH_INFO_FLAGS;
1641
1642 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1643 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1644 pinfo->metric = mpath->metric;
1645 if (time_before(jiffies, mpath->exp_time))
1646 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1647 pinfo->discovery_timeout =
1648 jiffies_to_msecs(mpath->discovery_timeout);
1649 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1650 if (mpath->flags & MESH_PATH_ACTIVE)
1651 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1652 if (mpath->flags & MESH_PATH_RESOLVING)
1653 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1654 if (mpath->flags & MESH_PATH_SN_VALID)
1655 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1656 if (mpath->flags & MESH_PATH_FIXED)
1657 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1658 if (mpath->flags & MESH_PATH_RESOLVED)
1659 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1660}
1661
1662static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1663 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1664
1665{
14db74bc 1666 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1667 struct mesh_path *mpath;
1668
14db74bc
JB		 1669 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1670
c5dd9c2b 1671 rcu_read_lock();
bf7cd94d 1672 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1673 if (!mpath) {
1674 rcu_read_unlock();
1675 return -ENOENT;
1676 }
1677 memcpy(dst, mpath->dst, ETH_ALEN);
1678 mpath_set_pinfo(mpath, next_hop, pinfo);
1679 rcu_read_unlock();
1680 return 0;
1681}
1682
1683static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1684 int idx, u8 *dst, u8 *next_hop,
1685 struct mpath_info *pinfo)
1686{
14db74bc 1687 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1688 struct mesh_path *mpath;
1689
14db74bc
JB		 1690 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1691
c5dd9c2b 1692 rcu_read_lock();
bf7cd94d 1693 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1694 if (!mpath) {
1695 rcu_read_unlock();
1696 return -ENOENT;
1697 }
1698 memcpy(dst, mpath->dst, ETH_ALEN);
1699 mpath_set_pinfo(mpath, next_hop, pinfo);
1700 rcu_read_unlock();
1701 return 0;
1702}
93da9cc1 1703
24bdd9f4 1704static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1705 struct net_device *dev,
1706 struct mesh_config *conf)
1707{
1708 struct ieee80211_sub_if_data *sdata;
1709 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1710
93da9cc1 1711 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1712 return 0;
1713}
1714
1715static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1716{
1717 return (mask >> (parm-1)) & 0x1;
1718}
1719
c80d545d
JC		 1720static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1721 const struct mesh_setup *setup)
1722{
1723 u8 *new_ie;
1724 const u8 *old_ie;
4bb62344
CYY		 1725 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1726 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1727
581a8b0f 1728 /* allocate information elements */
c80d545d 1729 new_ie = NULL;
581a8b0f 1730 old_ie = ifmsh->ie;
c80d545d 1731
581a8b0f
JC		 1732 if (setup->ie_len) {
1733 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1734 GFP_KERNEL);
1735 if (!new_ie)
1736 return -ENOMEM;
1737 }
581a8b0f
JC		 1738 ifmsh->ie_len = setup->ie_len;
1739 ifmsh->ie = new_ie;
1740 kfree(old_ie);
c80d545d
JC		 1741
1742 /* now copy the rest of the setup parameters */
1743 ifmsh->mesh_id_len = setup->mesh_id_len;
1744 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1745 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1746 ifmsh->mesh_pp_id = setup->path_sel_proto;
1747 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1748 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1749 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1750 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1751 if (setup->is_authenticated)
1752 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1753 if (setup->is_secure)
1754 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1755
4bb62344
CYY		 1756 /* mcast rate setting in Mesh Node */
1757 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1758 sizeof(setup->mcast_rate));
1759
9bdbf04d
MP		 1760 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1761 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1762
c80d545d
JC		 1763 return 0;
1764}
1765
24bdd9f4 1766static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1767 struct net_device *dev, u32 mask,
1768 const struct mesh_config *nconf)
93da9cc1 1769{
1770 struct mesh_config *conf;
1771 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1772 struct ieee80211_if_mesh *ifmsh;
1773
93da9cc1 1774 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1775 ifmsh = &sdata->u.mesh;
93da9cc1 1776
93da9cc1 1777 /* Set the config options which we are interested in setting */
1778 conf = &(sdata->u.mesh.mshcfg);
1779 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1780 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1781 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1782 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1783 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1784 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1785 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1786 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1787 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1788 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1789 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1790 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1791 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1792 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1793 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1794 if (ifmsh->user_mpm)
1795 return -EBUSY;
93da9cc1 1796 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1797 }
d299a1f2
JC		 1798 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1799 conf->dot11MeshNbrOffsetMaxNeighbor =
1800 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1801 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1802 conf->dot11MeshHWMPmaxPREQretries =
1803 nconf->dot11MeshHWMPmaxPREQretries;
1804 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1805 conf->path_refresh_time = nconf->path_refresh_time;
1806 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1807 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1808 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1809 conf->dot11MeshHWMPactivePathTimeout =
1810 nconf->dot11MeshHWMPactivePathTimeout;
1811 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1812 conf->dot11MeshHWMPpreqMinInterval =
1813 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1814 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1815 conf->dot11MeshHWMPperrMinInterval =
1816 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1817 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1818 mask))
1819 conf->dot11MeshHWMPnetDiameterTraversalTime =
1820 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1821 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1822 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1823 ieee80211_mesh_root_setup(ifmsh);
1824 }
16dd7267 1825 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1826 /* our current gate announcement implementation rides on root
1827 * announcements, so require this ifmsh to also be a root node
1828 * */
1829 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1830 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1831 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1832 ieee80211_mesh_root_setup(ifmsh);
1833 }
16dd7267
JC		 1834 conf->dot11MeshGateAnnouncementProtocol =
1835 nconf->dot11MeshGateAnnouncementProtocol;
1836 }
a4f606ea 1837 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1838 conf->dot11MeshHWMPRannInterval =
1839 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1840 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1841 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1842 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1843 /* our RSSI threshold implementation is supported only for
1844 * devices that report signal in dBm.
1845 */
1846 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1847 return -ENOTSUPP;
1848 conf->rssi_threshold = nconf->rssi_threshold;
1849 }
70c33eaa
AN		 1850 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1851 conf->ht_opmode = nconf->ht_opmode;
1852 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1853 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1854 }
ac1073a6
CYY		 1855 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1856 conf->dot11MeshHWMPactivePathToRootTimeout =
1857 nconf->dot11MeshHWMPactivePathToRootTimeout;
1858 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1859 conf->dot11MeshHWMProotInterval =
1860 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1861 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1862 conf->dot11MeshHWMPconfirmationInterval =
1863 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1864 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1865 conf->power_mode = nconf->power_mode;
1866 ieee80211_mps_local_status_update(sdata);
1867 }
2b5e1967 1868 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1869 conf->dot11MeshAwakeWindowDuration =
1870 nconf->dot11MeshAwakeWindowDuration;
2b5e1967 1871 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1872 return 0;
1873}
1874
29cbe68c
JB		 1875static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1876 const struct mesh_config *conf,
1877 const struct mesh_setup *setup)
1878{
1879 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1880 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1881 int err;
29cbe68c 1882
c80d545d
JC		 1883 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1884 err = copy_mesh_setup(ifmsh, setup);
1885 if (err)
1886 return err;
cc1d2806 1887
04ecd257
JB		 1888 /* can mesh use other SMPS modes? */
1889 sdata->smps_mode = IEEE80211_SMPS_OFF;
1890 sdata->needed_rx_chains = sdata->local->rx_chains;
1891
4bf88530 1892 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1893 IEEE80211_CHANCTX_SHARED);
cc1d2806
JB		 1894 if (err)
1895 return err;
1896
2b5e1967 1897 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1898}
1899
1900static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1901{
1902 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1903
1904 ieee80211_stop_mesh(sdata);
55de908a 1905 ieee80211_vif_release_channel(sdata);
29cbe68c
JB		 1906
1907 return 0;
1908}
c5dd9c2b
LCC		 1909#endif
1910
9f1ba906
JM		 1911static int ieee80211_change_bss(struct wiphy *wiphy,
1912 struct net_device *dev,
1913 struct bss_parameters *params)
1914{
55de908a
JB		 1915 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1916 enum ieee80211_band band;
9f1ba906
JM		 1917 u32 changed = 0;
1918
55de908a
JB		 1919 if (!rtnl_dereference(sdata->u.ap.beacon))
1920 return -ENOENT;
1921
1922 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1923
9f1ba906 1924 if (params->use_cts_prot >= 0) {
bda3933a 1925 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1926 changed |= BSS_CHANGED_ERP_CTS_PROT;
1927 }
1928 if (params->use_short_preamble >= 0) {
bda3933a 1929 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1930 params->use_short_preamble;
1931 changed |= BSS_CHANGED_ERP_PREAMBLE;
1932 }
43d35343
FF		 1933
1934 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1935 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1936 sdata->vif.bss_conf.use_short_slot = true;
1937 changed |= BSS_CHANGED_ERP_SLOT;
1938 }
1939
9f1ba906 1940 if (params->use_short_slot_time >= 0) {
bda3933a 1941 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1942 params->use_short_slot_time;
1943 changed |= BSS_CHANGED_ERP_SLOT;
1944 }
1945
90c97a04
JM		 1946 if (params->basic_rates) {
1947 int i, j;
1948 u32 rates = 0;
55de908a 1949 struct ieee80211_supported_band *sband = wiphy->bands[band];
90c97a04
JM		 1950
1951 for (i = 0; i < params->basic_rates_len; i++) {
1952 int rate = (params->basic_rates[i] & 0x7f) * 5;
1953 for (j = 0; j < sband->n_bitrates; j++) {
1954 if (sband->bitrates[j].bitrate == rate)
1955 rates |= BIT(j);
1956 }
1957 }
1958 sdata->vif.bss_conf.basic_rates = rates;
1959 changed |= BSS_CHANGED_BASIC_RATES;
1960 }
1961
7b7b5e56
FF		 1962 if (params->ap_isolate >= 0) {
1963 if (params->ap_isolate)
1964 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1965 else
1966 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1967 }
1968
80d7e403
HS		 1969 if (params->ht_opmode >= 0) {
1970 sdata->vif.bss_conf.ht_operation_mode =
1971 (u16) params->ht_opmode;
1972 changed |= BSS_CHANGED_HT;
1973 }
1974
339afbf4 1975 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1976 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1977 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1978 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1979 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1980 changed |= BSS_CHANGED_P2P_PS;
1981 }
1982
67baf663
JD		 1983 if (params->p2p_opp_ps > 0) {
1984 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1985 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1986 changed |= BSS_CHANGED_P2P_PS;
1987 } else if (params->p2p_opp_ps == 0) {
1988 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1989 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1990 changed |= BSS_CHANGED_P2P_PS;
1991 }
1992
9f1ba906
JM		 1993 ieee80211_bss_info_change_notify(sdata, changed);
1994
1995 return 0;
1996}
1997
31888487 1998static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1999 struct net_device *dev,
31888487
JM		 2000 struct ieee80211_txq_params *params)
2001{
2002 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 2003 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 2004 struct ieee80211_tx_queue_params p;
2005
2006 if (!local->ops->conf_tx)
2007 return -EOPNOTSUPP;
2008
54bcbc69
JB		 2009 if (local->hw.queues < IEEE80211_NUM_ACS)
2010 return -EOPNOTSUPP;
2011
31888487
JM		 2012 memset(&p, 0, sizeof(p));
2013 p.aifs = params->aifs;
2014 p.cw_max = params->cwmax;
2015 p.cw_min = params->cwmin;
2016 p.txop = params->txop;
ab13315a
KV		 2017
2018 /*
2019 * Setting tx queue params disables u-apsd because it's only
2020 * called in master mode.
2021 */
2022 p.uapsd = false;
2023
a3304b0a
JB		 2024 sdata->tx_conf[params->ac] = p;
2025 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 2026 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 2027 "failed to set TX queue parameters for AC %d\n",
2028 params->ac);
31888487
JM		 2029 return -EINVAL;
2030 }
2031
7d25745d
JB		 2032 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2033
31888487
JM		 2034 return 0;
2035}
2036
665af4fc 2037#ifdef CONFIG_PM
ff1b6e69
JB		 2038static int ieee80211_suspend(struct wiphy *wiphy,
2039 struct cfg80211_wowlan *wowlan)
665af4fc 2040{
eecc4800 2041 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 2042}
2043
2044static int ieee80211_resume(struct wiphy *wiphy)
2045{
2046 return __ieee80211_resume(wiphy_priv(wiphy));
2047}
2048#else
2049#define ieee80211_suspend NULL
2050#define ieee80211_resume NULL
2051#endif
2052
2a519311 2053static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 2054 struct cfg80211_scan_request *req)
2055{
fd014284
JB		 2056 struct ieee80211_sub_if_data *sdata;
2057
2058 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 2059
2ca27bcf
JB		 2060 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2061 case NL80211_IFTYPE_STATION:
2062 case NL80211_IFTYPE_ADHOC:
2063 case NL80211_IFTYPE_MESH_POINT:
2064 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 2065 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 2066 break;
2067 case NL80211_IFTYPE_P2P_GO:
2068 if (sdata->local->ops->hw_scan)
2069 break;
e9d7732e
JB		 2070 /*
2071 * FIXME: implement NoA while scanning in software,
2072 * for now fall through to allow scanning only when
2073 * beaconing hasn't been configured yet
2074 */
2ca27bcf 2075 case NL80211_IFTYPE_AP:
5c95b940
AQ		 2076 /*
2077 * If the scan has been forced (and the driver supports
2078 * forcing), don't care about being beaconing already.
2079 * This will create problems to the attached stations (e.g. all
2080 * the frames sent while scanning on other channel will be
2081 * lost)
2082 */
2083 if (sdata->u.ap.beacon &&
2084 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2085 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2086 return -EOPNOTSUPP;
2087 break;
2088 default:
2089 return -EOPNOTSUPP;
2090 }
2a519311
JB		 2091
2092 return ieee80211_request_scan(sdata, req);
2093}
2094
79f460ca
LC		 2095static int
2096ieee80211_sched_scan_start(struct wiphy *wiphy,
2097 struct net_device *dev,
2098 struct cfg80211_sched_scan_request *req)
2099{
2100 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2101
2102 if (!sdata->local->ops->sched_scan_start)
2103 return -EOPNOTSUPP;
2104
2105 return ieee80211_request_sched_scan_start(sdata, req);
2106}
2107
2108static int
85a9994a 2109ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 2110{
2111 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2112
2113 if (!sdata->local->ops->sched_scan_stop)
2114 return -EOPNOTSUPP;
2115
85a9994a 2116 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 2117}
2118
636a5d36
JM		 2119static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2120 struct cfg80211_auth_request *req)
2121{
77fdaa12 2122 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2123}
2124
2125static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2126 struct cfg80211_assoc_request *req)
2127{
77fdaa12 2128 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2129}
2130
2131static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2132 struct cfg80211_deauth_request *req)
636a5d36 2133{
63c9c5e7 2134 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2135}
2136
2137static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2138 struct cfg80211_disassoc_request *req)
636a5d36 2139{
63c9c5e7 2140 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2141}
2142
af8cdcd8
JB		 2143static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2144 struct cfg80211_ibss_params *params)
2145{
55de908a 2146 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2147}
2148
2149static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2150{
55de908a 2151 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2152}
2153
391e53e3
AQ		 2154static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2155 int rate[IEEE80211_NUM_BANDS])
2156{
2157 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2158
9887dbf5
CD		 2159 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2160 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 2161
2162 return 0;
2163}
2164
b9a5f8ca
JM		 2165static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2166{
2167 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2168 int err;
b9a5f8ca 2169
f23a4780
AN		 2170 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2171 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2172
2173 if (err)
2174 return err;
2175 }
2176
310bc676
LT		 2177 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2178 err = drv_set_coverage_class(local, wiphy->coverage_class);
2179
2180 if (err)
2181 return err;
2182 }
2183
b9a5f8ca 2184 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2185 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2186
24487981
JB		 2187 if (err)
2188 return err;
b9a5f8ca
JM		 2189 }
2190
8bc83c24
JB		 2191 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2192 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2193 return -EINVAL;
b9a5f8ca 2194 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2195 }
2196 if (changed & WIPHY_PARAM_RETRY_LONG) {
2197 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2198 return -EINVAL;
b9a5f8ca 2199 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2200 }
b9a5f8ca
JM		 2201 if (changed &
2202 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2203 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2204
2205 return 0;
2206}
2207
7643a2c3 2208static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2209 struct wireless_dev *wdev,
fa61cf70 2210 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2211{
2212 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2213 struct ieee80211_sub_if_data *sdata;
7643a2c3 2214
1ea6f9c0
JB		 2215 if (wdev) {
2216 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2217
2218 switch (type) {
2219 case NL80211_TX_POWER_AUTOMATIC:
2220 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2221 break;
2222 case NL80211_TX_POWER_LIMITED:
2223 case NL80211_TX_POWER_FIXED:
2224 if (mbm < 0 || (mbm % 100))
2225 return -EOPNOTSUPP;
2226 sdata->user_power_level = MBM_TO_DBM(mbm);
2227 break;
2228 }
2229
2230 ieee80211_recalc_txpower(sdata);
2231
2232 return 0;
2233 }
55de908a 2234
7643a2c3 2235 switch (type) {
fa61cf70 2236 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2237 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
7643a2c3 2238 break;
fa61cf70 2239 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2240 case NL80211_TX_POWER_FIXED:
2241 if (mbm < 0 || (mbm % 100))
2242 return -EOPNOTSUPP;
fa61cf70 2243 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2244 break;
7643a2c3
JB		 2245 }
2246
1ea6f9c0
JB		 2247 mutex_lock(&local->iflist_mtx);
2248 list_for_each_entry(sdata, &local->interfaces, list)
2249 sdata->user_power_level = local->user_power_level;
2250 list_for_each_entry(sdata, &local->interfaces, list)
2251 ieee80211_recalc_txpower(sdata);
2252 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2253
2254 return 0;
2255}
2256
c8442118
JB		 2257static int ieee80211_get_tx_power(struct wiphy *wiphy,
2258 struct wireless_dev *wdev,
2259 int *dbm)
7643a2c3
JB		 2260{
2261 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2262 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2263
1ea6f9c0
JB		 2264 if (!local->use_chanctx)
2265 *dbm = local->hw.conf.power_level;
2266 else
2267 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2268
7643a2c3
JB		 2269 return 0;
2270}
2271
ab737a4f 2272static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2273 const u8 *addr)
ab737a4f
JB		 2274{
2275 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2276
2277 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2278
2279 return 0;
2280}
2281
1f87f7d3
JB		 2282static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2283{
2284 struct ieee80211_local *local = wiphy_priv(wiphy);
2285
2286 drv_rfkill_poll(local);
2287}
2288
aff89a9b 2289#ifdef CONFIG_NL80211_TESTMODE
99783e2c 2290static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
aff89a9b
JB		 2291{
2292 struct ieee80211_local *local = wiphy_priv(wiphy);
2293
2294 if (!local->ops->testmode_cmd)
2295 return -EOPNOTSUPP;
2296
2297 return local->ops->testmode_cmd(&local->hw, data, len);
2298}
71063f0e
WYG		 2299
2300static int ieee80211_testmode_dump(struct wiphy *wiphy,
2301 struct sk_buff *skb,
2302 struct netlink_callback *cb,
2303 void *data, int len)
2304{
2305 struct ieee80211_local *local = wiphy_priv(wiphy);
2306
2307 if (!local->ops->testmode_dump)
2308 return -EOPNOTSUPP;
2309
2310 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2311}
aff89a9b
JB		 2312#endif
2313
0f78231b
JB		 2314int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
2315 enum ieee80211_smps_mode smps_mode)
2316{
2317 const u8 *ap;
2318 enum ieee80211_smps_mode old_req;
2319 int err;
2320
243e6df4
JB		 2321 lockdep_assert_held(&sdata->u.mgd.mtx);
2322
0f78231b
JB		 2323 old_req = sdata->u.mgd.req_smps;
2324 sdata->u.mgd.req_smps = smps_mode;
2325
2326 if (old_req == smps_mode &&
2327 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2328 return 0;
2329
2330 /*
2331 * If not associated, or current association is not an HT
04ecd257
JB		 2332 * association, there's no need to do anything, just store
2333 * the new value until we associate.
0f78231b
JB		 2334 */
2335 if (!sdata->u.mgd.associated ||
4bf88530 2336 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2337 return 0;
0f78231b 2338
0c1ad2ca 2339 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2340
2341 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2342 if (sdata->u.mgd.powersave)
2343 smps_mode = IEEE80211_SMPS_DYNAMIC;
2344 else
2345 smps_mode = IEEE80211_SMPS_OFF;
2346 }
2347
2348 /* send SM PS frame to AP */
2349 err = ieee80211_send_smps_action(sdata, smps_mode,
2350 ap, ap);
2351 if (err)
2352 sdata->u.mgd.req_smps = old_req;
2353
2354 return err;
2355}
2356
bc92afd9
JB		 2357static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2358 bool enabled, int timeout)
2359{
2360 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2361 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2362
ee1f6681
CYY		 2363 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
2364 sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
e5de30c9
BP		 2365 return -EOPNOTSUPP;
2366
bc92afd9
JB		 2367 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2368 return -EOPNOTSUPP;
2369
2370 if (enabled == sdata->u.mgd.powersave &&
ff616381 2371 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2372 return 0;
2373
2374 sdata->u.mgd.powersave = enabled;
ff616381 2375 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2376
0f78231b
JB		 2377 /* no change, but if automatic follow powersave */
2378 mutex_lock(&sdata->u.mgd.mtx);
2379 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
2380 mutex_unlock(&sdata->u.mgd.mtx);
2381
bc92afd9
JB		 2382 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2383 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2384
2385 ieee80211_recalc_ps(local, -1);
ab095877 2386 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2387
2388 return 0;
2389}
2390
a97c13c3
JO		 2391static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2392 struct net_device *dev,
2393 s32 rssi_thold, u32 rssi_hyst)
2394{
2395 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2396 struct ieee80211_vif *vif = &sdata->vif;
2397 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2398
a97c13c3
JO		 2399 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2400 rssi_hyst == bss_conf->cqm_rssi_hyst)
2401 return 0;
2402
2403 bss_conf->cqm_rssi_thold = rssi_thold;
2404 bss_conf->cqm_rssi_hyst = rssi_hyst;
2405
2406 /* tell the driver upon association, unless already associated */
ea086359
JB		 2407 if (sdata->u.mgd.associated &&
2408 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2409 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2410
2411 return 0;
2412}
2413
9930380f
JB		 2414static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2415 struct net_device *dev,
2416 const u8 *addr,
2417 const struct cfg80211_bitrate_mask *mask)
2418{
2419 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2420 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2421 int i, ret;
2c7e6bc9 2422
554a43d5
EP		 2423 if (!ieee80211_sdata_running(sdata))
2424 return -ENETDOWN;
2425
bdbfd6b5
SM		 2426 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2427 ret = drv_set_bitrate_mask(local, sdata, mask);
2428 if (ret)
2429 return ret;
2430 }
9930380f 2431
19468413 2432 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2433 struct ieee80211_supported_band *sband = wiphy->bands[i];
2434 int j;
2435
37eb0b16 2436 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
19468413
SW		 2437 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
2438 sizeof(mask->control[i].mcs));
2ffbe6d3
FF		 2439
2440 sdata->rc_has_mcs_mask[i] = false;
2441 if (!sband)
2442 continue;
2443
2444 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2445 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2446 sdata->rc_has_mcs_mask[i] = true;
2447 break;
2448 }
19468413 2449 }
9930380f 2450
37eb0b16 2451 return 0;
9930380f
JB		 2452}
2453
2eb278e0
JB		 2454static int ieee80211_start_roc_work(struct ieee80211_local *local,
2455 struct ieee80211_sub_if_data *sdata,
2456 struct ieee80211_channel *channel,
2eb278e0 2457 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2458 struct sk_buff *txskb,
2459 enum ieee80211_roc_type type)
2eb278e0
JB		 2460{
2461 struct ieee80211_roc_work *roc, *tmp;
2462 bool queued = false;
21f83589 2463 int ret;
21f83589
JB		 2464
2465 lockdep_assert_held(&local->mtx);
2466
fe57d9f5
JB		 2467 if (local->use_chanctx && !local->ops->remain_on_channel)
2468 return -EOPNOTSUPP;
2469
2eb278e0
JB		 2470 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2471 if (!roc)
2472 return -ENOMEM;
2473
2474 roc->chan = channel;
2eb278e0
JB		 2475 roc->duration = duration;
2476 roc->req_duration = duration;
2477 roc->frame = txskb;
d339d5ca 2478 roc->type = type;
2eb278e0
JB		 2479 roc->mgmt_tx_cookie = (unsigned long)txskb;
2480 roc->sdata = sdata;
2481 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2482 INIT_LIST_HEAD(&roc->dependents);
2483
2484 /* if there's one pending or we're scanning, queue this one */
164eb02d
SW		 2485 if (!list_empty(&local->roc_list) ||
2486 local->scanning || local->radar_detect_enabled)
2eb278e0
JB		 2487 goto out_check_combine;
2488
2489 /* if not HW assist, just queue & schedule work */
2490 if (!local->ops->remain_on_channel) {
2491 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2492 goto out_queue;
2493 }
2494
2495 /* otherwise actually kick it off here (for error handling) */
2496
2497 /*
2498 * If the duration is zero, then the driver
2499 * wouldn't actually do anything. Set it to
2500 * 10 for now.
2501 *
2502 * TODO: cancel the off-channel operation
2503 * when we get the SKB's TX status and
2504 * the wait time was zero before.
2505 */
2506 if (!duration)
2507 duration = 10;
2508
d339d5ca 2509 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2510 if (ret) {
2eb278e0
JB		 2511 kfree(roc);
2512 return ret;
21f83589
JB		 2513 }
2514
2eb278e0
JB		 2515 roc->started = true;
2516 goto out_queue;
2517
2518 out_check_combine:
2519 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2520 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2521 continue;
2522
2523 /*
2524 * Extend this ROC if possible:
2525 *
2526 * If it hasn't started yet, just increase the duration
2527 * and add the new one to the list of dependents.
d339d5ca
IP		 2528 * If the type of the new ROC has higher priority, modify the
2529 * type of the previous one to match that of the new one.
2eb278e0
JB		 2530 */
2531 if (!tmp->started) {
2532 list_add_tail(&roc->list, &tmp->dependents);
2533 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2534 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2535 queued = true;
2536 break;
2537 }
2538
2539 /* If it has already started, it's more difficult ... */
2540 if (local->ops->remain_on_channel) {
2541 unsigned long j = jiffies;
2542
2543 /*
2544 * In the offloaded ROC case, if it hasn't begun, add
2545 * this new one to the dependent list to be handled
d339d5ca 2546 * when the master one begins. If it has begun,
2eb278e0
JB		 2547 * check that there's still a minimum time left and
2548 * if so, start this one, transmitting the frame, but
d339d5ca 2549 * add it to the list directly after this one with
2eb278e0
JB		 2550 * a reduced time so we'll ask the driver to execute
2551 * it right after finishing the previous one, in the
2552 * hope that it'll also be executed right afterwards,
2553 * effectively extending the old one.
2554 * If there's no minimum time left, just add it to the
2555 * normal list.
d339d5ca
IP		 2556 * TODO: the ROC type is ignored here, assuming that it
2557 * is better to immediately use the current ROC.
2eb278e0
JB		 2558 */
2559 if (!tmp->hw_begun) {
2560 list_add_tail(&roc->list, &tmp->dependents);
2561 queued = true;
2562 break;
2563 }
2564
2565 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2566 tmp->hw_start_time +
2567 msecs_to_jiffies(tmp->duration))) {
2568 int new_dur;
2569
2570 ieee80211_handle_roc_started(roc);
2571
2572 new_dur = roc->duration -
2573 jiffies_to_msecs(tmp->hw_start_time +
2574 msecs_to_jiffies(
2575 tmp->duration) -
2576 j);
2577
2578 if (new_dur > 0) {
2579 /* add right after tmp */
2580 list_add(&roc->list, &tmp->list);
2581 } else {
2582 list_add_tail(&roc->list,
2583 &tmp->dependents);
2584 }
2585 queued = true;
2586 }
2587 } else if (del_timer_sync(&tmp->work.timer)) {
2588 unsigned long new_end;
2589
2590 /*
2591 * In the software ROC case, cancel the timer, if
2592 * that fails then the finish work is already
2593 * queued/pending and thus we queue the new ROC
2594 * normally, if that succeeds then we can extend
2595 * the timer duration and TX the frame (if any.)
2596 */
2597
2598 list_add_tail(&roc->list, &tmp->dependents);
2599 queued = true;
2600
2601 new_end = jiffies + msecs_to_jiffies(roc->duration);
2602
2603 /* ok, it was started & we canceled timer */
2604 if (time_after(new_end, tmp->work.timer.expires))
2605 mod_timer(&tmp->work.timer, new_end);
2606 else
2607 add_timer(&tmp->work.timer);
2608
2609 ieee80211_handle_roc_started(roc);
2610 }
2611 break;
2612 }
2613
2614 out_queue:
2615 if (!queued)
2616 list_add_tail(&roc->list, &local->roc_list);
2617
2618 /*
50febf6a 2619 * cookie is either the roc cookie (for normal roc)
2eb278e0
JB		 2620 * or the SKB (for mgmt TX)
2621 */
50febf6a
JB		 2622 if (!txskb) {
2623 /* local->mtx protects this */
2624 local->roc_cookie_counter++;
2625 roc->cookie = local->roc_cookie_counter;
2626 /* wow, you wrapped 64 bits ... more likely a bug */
2627 if (WARN_ON(roc->cookie == 0)) {
2628 roc->cookie = 1;
2629 local->roc_cookie_counter++;
2630 }
2631 *cookie = roc->cookie;
2632 } else {
2eb278e0 2633 *cookie = (unsigned long)txskb;
50febf6a 2634 }
2eb278e0
JB		 2635
2636 return 0;
21f83589
JB		 2637}
2638
b8bc4b0a 2639static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2640 struct wireless_dev *wdev,
b8bc4b0a 2641 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2642 unsigned int duration,
2643 u64 *cookie)
2644{
71bbc994 2645 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2646 struct ieee80211_local *local = sdata->local;
2eb278e0 2647 int ret;
21f83589 2648
2eb278e0 2649 mutex_lock(&local->mtx);
42d97a59 2650 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2651 duration, cookie, NULL,
2652 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2653 mutex_unlock(&local->mtx);
b8bc4b0a 2654
2eb278e0 2655 return ret;
b8bc4b0a
JB		 2656}
2657
2eb278e0
JB		 2658static int ieee80211_cancel_roc(struct ieee80211_local *local,
2659 u64 cookie, bool mgmt_tx)
21f83589 2660{
2eb278e0 2661 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2662 int ret;
2663
2eb278e0
JB		 2664 mutex_lock(&local->mtx);
2665 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2666 struct ieee80211_roc_work *dep, *tmp2;
2667
2668 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2669 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2670 continue;
2671 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2672 continue;
2673 /* found dependent item -- just remove it */
2674 list_del(&dep->list);
2675 mutex_unlock(&local->mtx);
2676
3fbd45ca 2677 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2678 return 0;
2679 }
2680
50febf6a 2681 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2682 continue;
2683 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2684 continue;
21f83589 2685
2eb278e0
JB		 2686 found = roc;
2687 break;
2688 }
21f83589 2689
2eb278e0
JB		 2690 if (!found) {
2691 mutex_unlock(&local->mtx);
2692 return -ENOENT;
2693 }
21f83589 2694
e979e33c
JB		 2695 /*
2696 * We found the item to cancel, so do that. Note that it
2697 * may have dependents, which we also cancel (and send
2698 * the expired signal for.) Not doing so would be quite
2699 * tricky here, but we may need to fix it later.
2700 */
2701
2eb278e0
JB		 2702 if (local->ops->remain_on_channel) {
2703 if (found->started) {
2704 ret = drv_cancel_remain_on_channel(local);
2705 if (WARN_ON_ONCE(ret)) {
2706 mutex_unlock(&local->mtx);
2707 return ret;
2708 }
2709 }
21f83589 2710
2eb278e0 2711 list_del(&found->list);
21f83589 2712
0f6b3f59
JB		 2713 if (found->started)
2714 ieee80211_start_next_roc(local);
2eb278e0 2715 mutex_unlock(&local->mtx);
21f83589 2716
3fbd45ca 2717 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2718 } else {
2719 /* work may be pending so use it all the time */
2720 found->abort = true;
2721 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2722
21f83589
JB		 2723 mutex_unlock(&local->mtx);
2724
2eb278e0
JB		 2725 /* work will clean up etc */
2726 flush_delayed_work(&found->work);
3fbd45ca
JB		 2727 WARN_ON(!found->to_be_freed);
2728 kfree(found);
21f83589 2729 }
b8bc4b0a 2730
2eb278e0 2731 return 0;
b8bc4b0a
JB		 2732}
2733
2eb278e0 2734static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2735 struct wireless_dev *wdev,
2eb278e0 2736 u64 cookie)
f30221e4 2737{
71bbc994 2738 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2739 struct ieee80211_local *local = sdata->local;
f30221e4 2740
2eb278e0 2741 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2742}
2743
164eb02d
SW		 2744static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2745 struct net_device *dev,
2746 struct cfg80211_chan_def *chandef)
2747{
2748 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2749 struct ieee80211_local *local = sdata->local;
2750 unsigned long timeout;
2751 int err;
2752
2753 if (!list_empty(&local->roc_list) || local->scanning)
2754 return -EBUSY;
2755
2756 /* whatever, but channel contexts should not complain about that one */
2757 sdata->smps_mode = IEEE80211_SMPS_OFF;
2758 sdata->needed_rx_chains = local->rx_chains;
2759 sdata->radar_required = true;
2760
2761 mutex_lock(&local->iflist_mtx);
2762 err = ieee80211_vif_use_channel(sdata, chandef,
2763 IEEE80211_CHANCTX_SHARED);
2764 mutex_unlock(&local->iflist_mtx);
2765 if (err)
2766 return err;
2767
2768 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2769 ieee80211_queue_delayed_work(&sdata->local->hw,
2770 &sdata->dfs_cac_timer_work, timeout);
2771
2772 return 0;
2773}
2774
71bbc994 2775static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
f7ca38df 2776 struct ieee80211_channel *chan, bool offchan,
42d97a59
JB		 2777 unsigned int wait, const u8 *buf, size_t len,
2778 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
026331c4 2779{
71bbc994 2780 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d
JB		 2781 struct ieee80211_local *local = sdata->local;
2782 struct sk_buff *skb;
2783 struct sta_info *sta;
2784 const struct ieee80211_mgmt *mgmt = (void *)buf;
2eb278e0 2785 bool need_offchan = false;
e247bd90 2786 u32 flags;
2eb278e0 2787 int ret;
f7ca38df 2788
e247bd90
JB		 2789 if (dont_wait_for_ack)
2790 flags = IEEE80211_TX_CTL_NO_ACK;
2791 else
2792 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
2793 IEEE80211_TX_CTL_REQ_TX_STATUS;
2794
aad14ceb
RM		 2795 if (no_cck)
2796 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
2797
9d38d85d
JB		 2798 switch (sdata->vif.type) {
2799 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 2800 if (!sdata->vif.bss_conf.ibss_joined)
2801 need_offchan = true;
2802 /* fall through */
2803#ifdef CONFIG_MAC80211_MESH
2804 case NL80211_IFTYPE_MESH_POINT:
2805 if (ieee80211_vif_is_mesh(&sdata->vif) &&
2806 !sdata->u.mesh.mesh_id_len)
2807 need_offchan = true;
2808 /* fall through */
2809#endif
663fcafd
JB		 2810 case NL80211_IFTYPE_AP:
2811 case NL80211_IFTYPE_AP_VLAN:
2812 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 2813 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
2814 !ieee80211_vif_is_mesh(&sdata->vif) &&
2815 !rcu_access_pointer(sdata->bss->beacon))
2816 need_offchan = true;
663fcafd
JB		 2817 if (!ieee80211_is_action(mgmt->frame_control) ||
2818 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
9d38d85d
JB		 2819 break;
2820 rcu_read_lock();
2821 sta = sta_info_get(sdata, mgmt->da);
2822 rcu_read_unlock();
2823 if (!sta)
2824 return -ENOLINK;
2825 break;
2826 case NL80211_IFTYPE_STATION:
663fcafd 2827 case NL80211_IFTYPE_P2P_CLIENT:
2eb278e0
JB		 2828 if (!sdata->u.mgd.associated)
2829 need_offchan = true;
9d38d85d 2830 break;
f142c6b9
JB		 2831 case NL80211_IFTYPE_P2P_DEVICE:
2832 need_offchan = true;
2833 break;
9d38d85d
JB		 2834 default:
2835 return -EOPNOTSUPP;
2836 }
2837
2eb278e0
JB		 2838 mutex_lock(&local->mtx);
2839
2840 /* Check if the operating channel is the requested channel */
2841 if (!need_offchan) {
55de908a
JB		 2842 struct ieee80211_chanctx_conf *chanctx_conf;
2843
2844 rcu_read_lock();
2845 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2846
42d97a59 2847 if (chanctx_conf)
4bf88530 2848 need_offchan = chan != chanctx_conf->def.chan;
42d97a59 2849 else
2eb278e0 2850 need_offchan = true;
55de908a 2851 rcu_read_unlock();
2eb278e0
JB		 2852 }
2853
2854 if (need_offchan && !offchan) {
2855 ret = -EBUSY;
2856 goto out_unlock;
2857 }
2858
9d38d85d 2859 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
2eb278e0
JB		 2860 if (!skb) {
2861 ret = -ENOMEM;
2862 goto out_unlock;
2863 }
9d38d85d
JB		 2864 skb_reserve(skb, local->hw.extra_tx_headroom);
2865
2866 memcpy(skb_put(skb, len), buf, len);
2867
2868 IEEE80211_SKB_CB(skb)->flags = flags;
2869
2870 skb->dev = sdata->dev;
9d38d85d 2871
2eb278e0 2872 if (!need_offchan) {
7f9f78ab 2873 *cookie = (unsigned long) skb;
f30221e4 2874 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 2875 ret = 0;
2876 goto out_unlock;
f30221e4
JB		 2877 }
2878
6c17b77b
SF		 2879 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
2880 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2eb278e0
JB		 2881 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
2882 IEEE80211_SKB_CB(skb)->hw_queue =
2883 local->hw.offchannel_tx_hw_queue;
f30221e4 2884
2eb278e0 2885 /* This will handle all kinds of coalescing and immediate TX */
42d97a59 2886 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2887 wait, cookie, skb,
2888 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 2889 if (ret)
2890 kfree_skb(skb);
2891 out_unlock:
2892 mutex_unlock(&local->mtx);
2893 return ret;
026331c4
JM		 2894}
2895
f30221e4 2896static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 2897 struct wireless_dev *wdev,
f30221e4
JB		 2898 u64 cookie)
2899{
71bbc994 2900 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 2901
2eb278e0 2902 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 2903}
2904
7be5086d 2905static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 2906 struct wireless_dev *wdev,
7be5086d
JB		 2907 u16 frame_type, bool reg)
2908{
2909 struct ieee80211_local *local = wiphy_priv(wiphy);
71bbc994 2910 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7be5086d 2911
6abe0563
WH		 2912 switch (frame_type) {
2913 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH:
2914 if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
2915 struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
7be5086d 2916
6abe0563
WH		 2917 if (reg)
2918 ifibss->auth_frame_registrations++;
2919 else
2920 ifibss->auth_frame_registrations--;
2921 }
2922 break;
2923 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
2924 if (reg)
2925 local->probe_req_reg++;
2926 else
2927 local->probe_req_reg--;
7be5086d 2928
35f5149e
FF		 2929 if (!local->open_count)
2930 break;
2931
6abe0563
WH		 2932 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2933 break;
2934 default:
2935 break;
2936 }
7be5086d
JB		 2937}
2938
15d96753
BR		 2939static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2940{
2941 struct ieee80211_local *local = wiphy_priv(wiphy);
2942
2943 if (local->started)
2944 return -EOPNOTSUPP;
2945
2946 return drv_set_antenna(local, tx_ant, rx_ant);
2947}
2948
2949static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2950{
2951 struct ieee80211_local *local = wiphy_priv(wiphy);
2952
2953 return drv_get_antenna(local, tx_ant, rx_ant);
2954}
2955
38c09159
JL		 2956static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2957{
2958 struct ieee80211_local *local = wiphy_priv(wiphy);
2959
2960 return drv_set_ringparam(local, tx, rx);
2961}
2962
2963static void ieee80211_get_ringparam(struct wiphy *wiphy,
2964 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2965{
2966 struct ieee80211_local *local = wiphy_priv(wiphy);
2967
2968 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2969}
2970
c68f4b89
JB		 2971static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2972 struct net_device *dev,
2973 struct cfg80211_gtk_rekey_data *data)
2974{
2975 struct ieee80211_local *local = wiphy_priv(wiphy);
2976 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2977
2978 if (!local->ops->set_rekey_data)
2979 return -EOPNOTSUPP;
2980
2981 drv_set_rekey_data(local, sdata, data);
2982
2983 return 0;
2984}
2985
dfe018bf
AN		 2986static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
2987{
2988 u8 *pos = (void *)skb_put(skb, 7);
2989
2990 *pos++ = WLAN_EID_EXT_CAPABILITY;
2991 *pos++ = 5; /* len */
2992 *pos++ = 0x0;
2993 *pos++ = 0x0;
2994 *pos++ = 0x0;
2995 *pos++ = 0x0;
2996 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
2997}
2998
2999static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3000{
3001 struct ieee80211_local *local = sdata->local;
3002 u16 capab;
3003
3004 capab = 0;
55de908a 3005 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
dfe018bf
AN		 3006 return capab;
3007
3008 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3009 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3010 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3011 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3012
3013 return capab;
3014}
3015
3016static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3017 u8 *peer, u8 *bssid)
3018{
3019 struct ieee80211_tdls_lnkie *lnkid;
3020
3021 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3022
3023 lnkid->ie_type = WLAN_EID_LINK_ID;
3024 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3025
3026 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3027 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3028 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3029}
3030
3031static int
3032ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3033 u8 *peer, u8 action_code, u8 dialog_token,
3034 u16 status_code, struct sk_buff *skb)
3035{
3036 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3037 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3038 struct ieee80211_tdls_data *tf;
3039
3040 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3041
3042 memcpy(tf->da, peer, ETH_ALEN);
3043 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3044 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3045 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3046
3047 switch (action_code) {
3048 case WLAN_TDLS_SETUP_REQUEST:
3049 tf->category = WLAN_CATEGORY_TDLS;
3050 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3051
3052 skb_put(skb, sizeof(tf->u.setup_req));
3053 tf->u.setup_req.dialog_token = dialog_token;
3054 tf->u.setup_req.capability =
3055 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3056
55de908a
JB		 3057 ieee80211_add_srates_ie(sdata, skb, false, band);
3058 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3059 ieee80211_tdls_add_ext_capab(skb);
3060 break;
3061 case WLAN_TDLS_SETUP_RESPONSE:
3062 tf->category = WLAN_CATEGORY_TDLS;
3063 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3064
3065 skb_put(skb, sizeof(tf->u.setup_resp));
3066 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3067 tf->u.setup_resp.dialog_token = dialog_token;
3068 tf->u.setup_resp.capability =
3069 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3070
55de908a
JB		 3071 ieee80211_add_srates_ie(sdata, skb, false, band);
3072 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3073 ieee80211_tdls_add_ext_capab(skb);
3074 break;
3075 case WLAN_TDLS_SETUP_CONFIRM:
3076 tf->category = WLAN_CATEGORY_TDLS;
3077 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3078
3079 skb_put(skb, sizeof(tf->u.setup_cfm));
3080 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3081 tf->u.setup_cfm.dialog_token = dialog_token;
3082 break;
3083 case WLAN_TDLS_TEARDOWN:
3084 tf->category = WLAN_CATEGORY_TDLS;
3085 tf->action_code = WLAN_TDLS_TEARDOWN;
3086
3087 skb_put(skb, sizeof(tf->u.teardown));
3088 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3089 break;
3090 case WLAN_TDLS_DISCOVERY_REQUEST:
3091 tf->category = WLAN_CATEGORY_TDLS;
3092 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3093
3094 skb_put(skb, sizeof(tf->u.discover_req));
3095 tf->u.discover_req.dialog_token = dialog_token;
3096 break;
3097 default:
3098 return -EINVAL;
3099 }
3100
3101 return 0;
3102}
3103
3104static int
3105ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3106 u8 *peer, u8 action_code, u8 dialog_token,
3107 u16 status_code, struct sk_buff *skb)
3108{
3109 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3110 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3111 struct ieee80211_mgmt *mgmt;
3112
3113 mgmt = (void *)skb_put(skb, 24);
3114 memset(mgmt, 0, 24);
3115 memcpy(mgmt->da, peer, ETH_ALEN);
3116 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3117 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3118
3119 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3120 IEEE80211_STYPE_ACTION);
3121
3122 switch (action_code) {
3123 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3124 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3125 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3126 mgmt->u.action.u.tdls_discover_resp.action_code =
3127 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3128 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3129 dialog_token;
3130 mgmt->u.action.u.tdls_discover_resp.capability =
3131 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3132
55de908a
JB		 3133 ieee80211_add_srates_ie(sdata, skb, false, band);
3134 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3135 ieee80211_tdls_add_ext_capab(skb);
3136 break;
3137 default:
3138 return -EINVAL;
3139 }
3140
3141 return 0;
3142}
3143
3144static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3145 u8 *peer, u8 action_code, u8 dialog_token,
3146 u16 status_code, const u8 *extra_ies,
3147 size_t extra_ies_len)
3148{
3149 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3150 struct ieee80211_local *local = sdata->local;
dfe018bf
AN		 3151 struct sk_buff *skb = NULL;
3152 bool send_direct;
3153 int ret;
3154
3155 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3156 return -ENOTSUPP;
3157
3158 /* make sure we are in managed mode, and associated */
3159 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3160 !sdata->u.mgd.associated)
3161 return -EINVAL;
3162
bdcbd8e0
JB		 3163 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3164 action_code, peer);
dfe018bf
AN		 3165
3166 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3167 max(sizeof(struct ieee80211_mgmt),
3168 sizeof(struct ieee80211_tdls_data)) +
3169 50 + /* supported rates */
3170 7 + /* ext capab */
3171 extra_ies_len +
3172 sizeof(struct ieee80211_tdls_lnkie));
3173 if (!skb)
3174 return -ENOMEM;
3175
dfe018bf
AN		 3176 skb_reserve(skb, local->hw.extra_tx_headroom);
3177
3178 switch (action_code) {
3179 case WLAN_TDLS_SETUP_REQUEST:
3180 case WLAN_TDLS_SETUP_RESPONSE:
3181 case WLAN_TDLS_SETUP_CONFIRM:
3182 case WLAN_TDLS_TEARDOWN:
3183 case WLAN_TDLS_DISCOVERY_REQUEST:
3184 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3185 action_code, dialog_token,
3186 status_code, skb);
3187 send_direct = false;
3188 break;
3189 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3190 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3191 dialog_token, status_code,
3192 skb);
3193 send_direct = true;
3194 break;
3195 default:
3196 ret = -ENOTSUPP;
3197 break;
3198 }
3199
3200 if (ret < 0)
3201 goto fail;
3202
3203 if (extra_ies_len)
3204 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3205
3206 /* the TDLS link IE is always added last */
3207 switch (action_code) {
3208 case WLAN_TDLS_SETUP_REQUEST:
3209 case WLAN_TDLS_SETUP_CONFIRM:
3210 case WLAN_TDLS_TEARDOWN:
3211 case WLAN_TDLS_DISCOVERY_REQUEST:
3212 /* we are the initiator */
3213 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3214 sdata->u.mgd.bssid);
3215 break;
3216 case WLAN_TDLS_SETUP_RESPONSE:
3217 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3218 /* we are the responder */
3219 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3220 sdata->u.mgd.bssid);
3221 break;
3222 default:
3223 ret = -ENOTSUPP;
3224 goto fail;
3225 }
3226
3227 if (send_direct) {
3228 ieee80211_tx_skb(sdata, skb);
3229 return 0;
3230 }
3231
3232 /*
3233 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3234 * we should default to AC_VI.
3235 */
3236 switch (action_code) {
3237 case WLAN_TDLS_SETUP_REQUEST:
3238 case WLAN_TDLS_SETUP_RESPONSE:
3239 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3240 skb->priority = 2;
3241 break;
3242 default:
3243 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3244 skb->priority = 5;
3245 break;
3246 }
3247
3248 /* disable bottom halves when entering the Tx path */
3249 local_bh_disable();
3250 ret = ieee80211_subif_start_xmit(skb, dev);
3251 local_bh_enable();
3252
3253 return ret;
3254
3255fail:
3256 dev_kfree_skb(skb);
3257 return ret;
3258}
3259
3260static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3261 u8 *peer, enum nl80211_tdls_operation oper)
3262{
941c93cd 3263 struct sta_info *sta;
dfe018bf
AN		 3264 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3265
3266 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3267 return -ENOTSUPP;
3268
3269 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3270 return -EINVAL;
3271
bdcbd8e0 3272 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
dfe018bf
AN		 3273
3274 switch (oper) {
3275 case NL80211_TDLS_ENABLE_LINK:
941c93cd
AN		 3276 rcu_read_lock();
3277 sta = sta_info_get(sdata, peer);
3278 if (!sta) {
3279 rcu_read_unlock();
3280 return -ENOLINK;
3281 }
3282
c2c98fde 3283 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
941c93cd 3284 rcu_read_unlock();
dfe018bf
AN		 3285 break;
3286 case NL80211_TDLS_DISABLE_LINK:
3287 return sta_info_destroy_addr(sdata, peer);
3288 case NL80211_TDLS_TEARDOWN:
3289 case NL80211_TDLS_SETUP:
3290 case NL80211_TDLS_DISCOVERY_REQ:
3291 /* We don't support in-driver setup/teardown/discovery */
3292 return -ENOTSUPP;
3293 default:
3294 return -ENOTSUPP;
3295 }
3296
3297 return 0;
3298}
3299
06500736
JB		 3300static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3301 const u8 *peer, u64 *cookie)
3302{
3303 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3304 struct ieee80211_local *local = sdata->local;
3305 struct ieee80211_qos_hdr *nullfunc;
3306 struct sk_buff *skb;
3307 int size = sizeof(*nullfunc);
3308 __le16 fc;
3309 bool qos;
3310 struct ieee80211_tx_info *info;
3311 struct sta_info *sta;
55de908a
JB		 3312 struct ieee80211_chanctx_conf *chanctx_conf;
3313 enum ieee80211_band band;
06500736
JB		 3314
3315 rcu_read_lock();
55de908a
JB		 3316 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3317 if (WARN_ON(!chanctx_conf)) {
3318 rcu_read_unlock();
3319 return -EINVAL;
3320 }
4bf88530 3321 band = chanctx_conf->def.chan->band;
06500736 3322 sta = sta_info_get(sdata, peer);
b4487c2d 3323 if (sta) {
06500736 3324 qos = test_sta_flag(sta, WLAN_STA_WME);
b4487c2d
JB		 3325 } else {
3326 rcu_read_unlock();
06500736 3327 return -ENOLINK;
b4487c2d 3328 }
06500736
JB		 3329
3330 if (qos) {
3331 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3332 IEEE80211_STYPE_QOS_NULLFUNC |
3333 IEEE80211_FCTL_FROMDS);
3334 } else {
3335 size -= 2;
3336 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3337 IEEE80211_STYPE_NULLFUNC |
3338 IEEE80211_FCTL_FROMDS);
3339 }
3340
3341 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a
JB		 3342 if (!skb) {
3343 rcu_read_unlock();
06500736 3344 return -ENOMEM;
55de908a 3345 }
06500736
JB		 3346
3347 skb->dev = dev;
3348
3349 skb_reserve(skb, local->hw.extra_tx_headroom);
3350
3351 nullfunc = (void *) skb_put(skb, size);
3352 nullfunc->frame_control = fc;
3353 nullfunc->duration_id = 0;
3354 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3355 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3356 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3357 nullfunc->seq_ctrl = 0;
3358
3359 info = IEEE80211_SKB_CB(skb);
3360
3361 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3362 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3363
3364 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3365 skb->priority = 7;
3366 if (qos)
3367 nullfunc->qos_ctrl = cpu_to_le16(7);
3368
3369 local_bh_disable();
55de908a 3370 ieee80211_xmit(sdata, skb, band);
06500736 3371 local_bh_enable();
55de908a 3372 rcu_read_unlock();
06500736
JB		 3373
3374 *cookie = (unsigned long) skb;
3375 return 0;
3376}
3377
683b6d3b
JB		 3378static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3379 struct wireless_dev *wdev,
3380 struct cfg80211_chan_def *chandef)
5b7ccaf3 3381{
55de908a 3382 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3383 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3384 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3385 int ret = -ENODATA;
55de908a
JB		 3386
3387 rcu_read_lock();
feda3027
JB		 3388 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3389 if (chanctx_conf) {
3390 *chandef = chanctx_conf->def;
3391 ret = 0;
3392 } else if (local->open_count > 0 &&
3393 local->open_count == local->monitors &&
3394 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3395 if (local->use_chanctx)
3396 *chandef = local->monitor_chandef;
3397 else
675a0b04 3398 *chandef = local->_oper_chandef;
683b6d3b 3399 ret = 0;
55de908a
JB		 3400 }
3401 rcu_read_unlock();
5b7ccaf3 3402
683b6d3b 3403 return ret;
5b7ccaf3
JB		 3404}
3405
6d52563f
JB		 3406#ifdef CONFIG_PM
3407static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3408{
3409 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3410}
3411#endif
3412
f0706e82
JB		 3413struct cfg80211_ops mac80211_config_ops = {
3414 .add_virtual_intf = ieee80211_add_iface,
3415 .del_virtual_intf = ieee80211_del_iface,
42613db7 3416 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3417 .start_p2p_device = ieee80211_start_p2p_device,
3418 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3419 .add_key = ieee80211_add_key,
3420 .del_key = ieee80211_del_key,
62da92fb 3421 .get_key = ieee80211_get_key,
e8cbb4cb 3422 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3423 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3424 .start_ap = ieee80211_start_ap,
3425 .change_beacon = ieee80211_change_beacon,
3426 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3427 .add_station = ieee80211_add_station,
3428 .del_station = ieee80211_del_station,
3429 .change_station = ieee80211_change_station,
7bbdd2d9 3430 .get_station = ieee80211_get_station,
c5dd9c2b 3431 .dump_station = ieee80211_dump_station,
1289723e 3432 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3433#ifdef CONFIG_MAC80211_MESH
3434 .add_mpath = ieee80211_add_mpath,
3435 .del_mpath = ieee80211_del_mpath,
3436 .change_mpath = ieee80211_change_mpath,
3437 .get_mpath = ieee80211_get_mpath,
3438 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 3439 .update_mesh_config = ieee80211_update_mesh_config,
3440 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3441 .join_mesh = ieee80211_join_mesh,
3442 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3443#endif
9f1ba906 3444 .change_bss = ieee80211_change_bss,
31888487 3445 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3446 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3447 .suspend = ieee80211_suspend,
3448 .resume = ieee80211_resume,
2a519311 3449 .scan = ieee80211_scan,
79f460ca
LC		 3450 .sched_scan_start = ieee80211_sched_scan_start,
3451 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3452 .auth = ieee80211_auth,
3453 .assoc = ieee80211_assoc,
3454 .deauth = ieee80211_deauth,
3455 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3456 .join_ibss = ieee80211_join_ibss,
3457 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3458 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3459 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3460 .set_tx_power = ieee80211_set_tx_power,
3461 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3462 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3463 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3464 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3465 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3466 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3467 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3468 .remain_on_channel = ieee80211_remain_on_channel,
3469 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3470 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3471 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3472 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3473 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3474 .set_antenna = ieee80211_set_antenna,
3475 .get_antenna = ieee80211_get_antenna,
38c09159
JL		 3476 .set_ringparam = ieee80211_set_ringparam,
3477 .get_ringparam = ieee80211_get_ringparam,
c68f4b89 3478 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3479 .tdls_oper = ieee80211_tdls_oper,
3480 .tdls_mgmt = ieee80211_tdls_mgmt,
06500736 3481 .probe_client = ieee80211_probe_client,
b53be792 3482 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3483#ifdef CONFIG_PM
3484 .set_wakeup = ieee80211_set_wakeup,
3485#endif
b1ab7925
BG		 3486 .get_et_sset_count = ieee80211_get_et_sset_count,
3487 .get_et_stats = ieee80211_get_et_stats,
3488 .get_et_strings = ieee80211_get_et_strings,
5b7ccaf3 3489 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3490 .start_radar_detection = ieee80211_start_radar_detection,
f0706e82 3491};
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