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mac80211: modify beacon using sdata/wdev-lock, not rtnl lock
[linux-block.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)) {
31eba5bc
FF		 76 u32 mask = MONITOR_FLAG_COOK_FRAMES |
77 MONITOR_FLAG_ACTIVE;
78
85416a4f 79 /*
31eba5bc
FF		 80 * Prohibit MONITOR_FLAG_COOK_FRAMES and
81 * MONITOR_FLAG_ACTIVE to be changed while the
82 * interface is up.
85416a4f
CL		 83 * Else we would need to add a lot of cruft
84 * to update everything:
85 * cooked_mntrs, monitor and all fif_* counters
86 * reconfigure hardware
87 */
31eba5bc 88 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
85416a4f
CL		 89 return -EBUSY;
90
91 ieee80211_adjust_monitor_flags(sdata, -1);
92 sdata->u.mntr_flags = *flags;
93 ieee80211_adjust_monitor_flags(sdata, 1);
94
95 ieee80211_configure_filter(local);
96 } else {
97 /*
98 * Because the interface is down, ieee80211_do_stop
99 * and ieee80211_do_open take care of "everything"
100 * mentioned in the comment above.
101 */
102 sdata->u.mntr_flags = *flags;
103 }
104 }
f7917af9 105
42613db7
JB		 106 return 0;
107}
108
f142c6b9
JB		 109static int ieee80211_start_p2p_device(struct wiphy *wiphy,
110 struct wireless_dev *wdev)
111{
112 return ieee80211_do_open(wdev, true);
113}
114
115static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
116 struct wireless_dev *wdev)
117{
118 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
119}
120
b53be792
SW		 121static int ieee80211_set_noack_map(struct wiphy *wiphy,
122 struct net_device *dev,
123 u16 noack_map)
124{
125 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
126
127 sdata->noack_map = noack_map;
128 return 0;
129}
130
e8cbb4cb 131static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 132 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 133 struct key_params *params)
134{
26a58456 135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2475b1cc 136 struct ieee80211_local *local = sdata->local;
e8cbb4cb 137 struct sta_info *sta = NULL;
2475b1cc 138 const struct ieee80211_cipher_scheme *cs = NULL;
db4d1169 139 struct ieee80211_key *key;
3b96766f 140 int err;
e8cbb4cb 141
26a58456 142 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 143 return -ENETDOWN;
144
97359d12 145 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 146 switch (params->cipher) {
147 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 148 case WLAN_CIPHER_SUITE_TKIP:
97359d12 149 case WLAN_CIPHER_SUITE_WEP104:
2475b1cc 150 if (IS_ERR(local->wep_tx_tfm))
97359d12 151 return -EINVAL;
3cfcf6ac 152 break;
2475b1cc
MS		 153 case WLAN_CIPHER_SUITE_CCMP:
154 case WLAN_CIPHER_SUITE_AES_CMAC:
155 case WLAN_CIPHER_SUITE_GCMP:
156 break;
e8cbb4cb 157 default:
2475b1cc 158 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
97359d12 159 break;
e8cbb4cb
JB		 160 }
161
97359d12 162 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
2475b1cc
MS		 163 params->key, params->seq_len, params->seq,
164 cs);
1ac62ba7
BH		 165 if (IS_ERR(key))
166 return PTR_ERR(key);
db4d1169 167
e31b8213
JB		 168 if (pairwise)
169 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
170
2475b1cc 171 mutex_lock(&local->sta_mtx);
3b96766f 172
e8cbb4cb 173 if (mac_addr) {
ff973af7
TP		 174 if (ieee80211_vif_is_mesh(&sdata->vif))
175 sta = sta_info_get(sdata, mac_addr);
176 else
177 sta = sta_info_get_bss(sdata, mac_addr);
1626e0fa
JB		 178 /*
179 * The ASSOC test makes sure the driver is ready to
180 * receive the key. When wpa_supplicant has roamed
181 * using FT, it attempts to set the key before
182 * association has completed, this rejects that attempt
183 * so it will set the key again after assocation.
184 *
185 * TODO: accept the key if we have a station entry and
186 * add it to the device after the station.
187 */
188 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
79cf2dfa 189 ieee80211_key_free_unused(key);
3b96766f
JB		 190 err = -ENOENT;
191 goto out_unlock;
db4d1169 192 }
e8cbb4cb
JB		 193 }
194
e548c49e
JB		 195 switch (sdata->vif.type) {
196 case NL80211_IFTYPE_STATION:
197 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
198 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
199 break;
200 case NL80211_IFTYPE_AP:
201 case NL80211_IFTYPE_AP_VLAN:
202 /* Keys without a station are used for TX only */
203 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
204 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
205 break;
206 case NL80211_IFTYPE_ADHOC:
207 /* no MFP (yet) */
208 break;
209 case NL80211_IFTYPE_MESH_POINT:
210#ifdef CONFIG_MAC80211_MESH
211 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
212 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
213 break;
214#endif
215 case NL80211_IFTYPE_WDS:
216 case NL80211_IFTYPE_MONITOR:
217 case NL80211_IFTYPE_P2P_DEVICE:
218 case NL80211_IFTYPE_UNSPECIFIED:
219 case NUM_NL80211_IFTYPES:
220 case NL80211_IFTYPE_P2P_CLIENT:
221 case NL80211_IFTYPE_P2P_GO:
222 /* shouldn't happen */
223 WARN_ON_ONCE(1);
224 break;
225 }
226
2475b1cc
MS		 227 if (sta)
228 sta->cipher_scheme = cs;
229
3ffc2a90 230 err = ieee80211_key_link(key, sdata, sta);
db4d1169 231
3b96766f 232 out_unlock:
2475b1cc 233 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 234
235 return err;
e8cbb4cb
JB		 236}
237
238static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 239 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 240{
5c0c3641
JB		 241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
242 struct ieee80211_local *local = sdata->local;
e8cbb4cb 243 struct sta_info *sta;
5c0c3641 244 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 245 int ret;
246
5c0c3641
JB		 247 mutex_lock(&local->sta_mtx);
248 mutex_lock(&local->key_mtx);
3b96766f 249
e8cbb4cb 250 if (mac_addr) {
3b96766f
JB		 251 ret = -ENOENT;
252
0e5ded5a 253 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 254 if (!sta)
3b96766f 255 goto out_unlock;
e8cbb4cb 256
5c0c3641 257 if (pairwise)
2475b1cc 258 key = key_mtx_dereference(local, sta->ptk[key_idx]);
5c0c3641 259 else
40b275b6 260 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 261 } else
40b275b6 262 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 263
5c0c3641 264 if (!key) {
3b96766f
JB		 265 ret = -ENOENT;
266 goto out_unlock;
267 }
e8cbb4cb 268
3b8d9c29 269 ieee80211_key_free(key, true);
e8cbb4cb 270
3b96766f
JB		 271 ret = 0;
272 out_unlock:
5c0c3641
JB		 273 mutex_unlock(&local->key_mtx);
274 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 275
276 return ret;
e8cbb4cb
JB		 277}
278
62da92fb 279static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 280 u8 key_idx, bool pairwise, const u8 *mac_addr,
281 void *cookie,
62da92fb
JB		 282 void (*callback)(void *cookie,
283 struct key_params *params))
284{
14db74bc 285 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 286 struct sta_info *sta = NULL;
287 u8 seq[6] = {0};
288 struct key_params params;
e31b8213 289 struct ieee80211_key *key = NULL;
aba83a0b 290 u64 pn64;
62da92fb
JB		 291 u32 iv32;
292 u16 iv16;
293 int err = -ENOENT;
294
14db74bc
JB		 295 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
296
3b96766f
JB		 297 rcu_read_lock();
298
62da92fb 299 if (mac_addr) {
0e5ded5a 300 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 301 if (!sta)
302 goto out;
303
e31b8213 304 if (pairwise)
2475b1cc 305 key = rcu_dereference(sta->ptk[key_idx]);
e31b8213 306 else if (key_idx < NUM_DEFAULT_KEYS)
a3836e02 307 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 308 } else
a3836e02 309 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 310
311 if (!key)
312 goto out;
313
314 memset(&params, 0, sizeof(params));
315
97359d12 316 params.cipher = key->conf.cipher;
62da92fb 317
97359d12
JB		 318 switch (key->conf.cipher) {
319 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 320 iv32 = key->u.tkip.tx.iv32;
321 iv16 = key->u.tkip.tx.iv16;
62da92fb 322
24487981
JB		 323 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
324 drv_get_tkip_seq(sdata->local,
325 key->conf.hw_key_idx,
326 &iv32, &iv16);
62da92fb
JB		 327
328 seq[0] = iv16 & 0xff;
329 seq[1] = (iv16 >> 8) & 0xff;
330 seq[2] = iv32 & 0xff;
331 seq[3] = (iv32 >> 8) & 0xff;
332 seq[4] = (iv32 >> 16) & 0xff;
333 seq[5] = (iv32 >> 24) & 0xff;
334 params.seq = seq;
335 params.seq_len = 6;
336 break;
97359d12 337 case WLAN_CIPHER_SUITE_CCMP:
aba83a0b
JB		 338 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
339 seq[0] = pn64;
340 seq[1] = pn64 >> 8;
341 seq[2] = pn64 >> 16;
342 seq[3] = pn64 >> 24;
343 seq[4] = pn64 >> 32;
344 seq[5] = pn64 >> 40;
62da92fb
JB		 345 params.seq = seq;
346 params.seq_len = 6;
347 break;
97359d12 348 case WLAN_CIPHER_SUITE_AES_CMAC:
75396ae6
JB		 349 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
350 seq[0] = pn64;
351 seq[1] = pn64 >> 8;
352 seq[2] = pn64 >> 16;
353 seq[3] = pn64 >> 24;
354 seq[4] = pn64 >> 32;
355 seq[5] = pn64 >> 40;
3cfcf6ac
JM		 356 params.seq = seq;
357 params.seq_len = 6;
358 break;
62da92fb
JB		 359 }
360
361 params.key = key->conf.key;
362 params.key_len = key->conf.keylen;
363
364 callback(cookie, &params);
365 err = 0;
366
367 out:
3b96766f 368 rcu_read_unlock();
62da92fb
JB		 369 return err;
370}
371
e8cbb4cb
JB		 372static int ieee80211_config_default_key(struct wiphy *wiphy,
373 struct net_device *dev,
dbd2fd65
JB		 374 u8 key_idx, bool uni,
375 bool multi)
e8cbb4cb 376{
ad0e2b5a 377 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 378
f7e0104c 379 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 380
381 return 0;
382}
383
3cfcf6ac
JM		 384static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
385 struct net_device *dev,
386 u8 key_idx)
387{
66c52421 388 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 389
3cfcf6ac
JM		 390 ieee80211_set_default_mgmt_key(sdata, key_idx);
391
3cfcf6ac
JM		 392 return 0;
393}
394
6b62bf32
TP		 395void sta_set_rate_info_tx(struct sta_info *sta,
396 const struct ieee80211_tx_rate *rate,
397 struct rate_info *rinfo)
398{
399 rinfo->flags = 0;
8bc83c24 400 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 401 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 402 rinfo->mcs = rate->idx;
403 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
404 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
405 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
406 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
407 } else {
408 struct ieee80211_supported_band *sband;
2103dec1
SW		 409 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
410 u16 brate;
411
8bc83c24
JB		 412 sband = sta->local->hw.wiphy->bands[
413 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 414 brate = sband->bitrates[rate->idx].bitrate;
415 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
8bc83c24 416 }
6b62bf32
TP		 417 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
418 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
8bc83c24
JB		 419 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
420 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
421 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
422 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
6b62bf32
TP		 423 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
424 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 425}
426
003e676a
S		 427void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
428{
429 rinfo->flags = 0;
430
431 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
432 rinfo->flags |= RATE_INFO_FLAGS_MCS;
433 rinfo->mcs = sta->last_rx_rate_idx;
434 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
435 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
436 rinfo->nss = sta->last_rx_rate_vht_nss;
437 rinfo->mcs = sta->last_rx_rate_idx;
438 } else {
439 struct ieee80211_supported_band *sband;
2103dec1
SW		 440 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
441 u16 brate;
003e676a
S		 442
443 sband = sta->local->hw.wiphy->bands[
444 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 445 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
446 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
003e676a
S		 447 }
448
449 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
450 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
451 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
452 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
453 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
454 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
455 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
456 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
457 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
458 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
459}
460
c5dd9c2b
LCC		 461static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
462{
d0709a65 463 struct ieee80211_sub_if_data *sdata = sta->sdata;
66572cfc 464 struct ieee80211_local *local = sdata->local;
ebe27c91 465 struct timespec uptime;
560d2682 466 u64 packets = 0;
ef0621e8 467 int i, ac;
c5dd9c2b 468
f5ea9120
JB		 469 sinfo->generation = sdata->local->sta_generation;
470
c5dd9c2b 471 sinfo->filled = STATION_INFO_INACTIVE_TIME |
560d2682
JB		 472 STATION_INFO_RX_BYTES64 |
473 STATION_INFO_TX_BYTES64 |
98c8a60a
JM		 474 STATION_INFO_RX_PACKETS |
475 STATION_INFO_TX_PACKETS |
b206b4ef
BR		 476 STATION_INFO_TX_RETRIES |
477 STATION_INFO_TX_FAILED |
5a5c731a 478 STATION_INFO_TX_BITRATE |
3af6334c 479 STATION_INFO_RX_BITRATE |
f4263c98 480 STATION_INFO_RX_DROP_MISC |
ebe27c91 481 STATION_INFO_BSS_PARAM |
7a724767 482 STATION_INFO_CONNECTED_TIME |
a85e1d55
PS		 483 STATION_INFO_STA_FLAGS |
484 STATION_INFO_BEACON_LOSS_COUNT;
ebe27c91
MSS		 485
486 do_posix_clock_monotonic_gettime(&uptime);
487 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
c5dd9c2b
LCC		 488
489 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
560d2682
JB		 490 sinfo->tx_bytes = 0;
491 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
492 sinfo->tx_bytes += sta->tx_bytes[ac];
493 packets += sta->tx_packets[ac];
494 }
495 sinfo->tx_packets = packets;
c5dd9c2b 496 sinfo->rx_bytes = sta->rx_bytes;
98c8a60a 497 sinfo->rx_packets = sta->rx_packets;
b206b4ef
BR		 498 sinfo->tx_retries = sta->tx_retry_count;
499 sinfo->tx_failed = sta->tx_retry_failed;
5a5c731a 500 sinfo->rx_dropped_misc = sta->rx_dropped;
a85e1d55 501 sinfo->beacon_loss_count = sta->beacon_loss_count;
c5dd9c2b 502
19deffbe
JL		 503 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
504 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
541a45a1 505 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
66572cfc
VG		 506 if (!local->ops->get_rssi ||
507 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
508 sinfo->signal = (s8)sta->last_signal;
541a45a1 509 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
420e7fab 510 }
ef0621e8
FF		 511 if (sta->chains) {
512 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
513 STATION_INFO_CHAIN_SIGNAL_AVG;
514
515 sinfo->chains = sta->chains;
516 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
517 sinfo->chain_signal[i] = sta->chain_signal_last[i];
518 sinfo->chain_signal_avg[i] =
519 (s8) -ewma_read(&sta->chain_signal_avg[i]);
520 }
521 }
420e7fab 522
6b62bf32 523 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
003e676a 524 sta_set_rate_info_rx(sta, &sinfo->rxrate);
420e7fab 525
902acc78 526 if (ieee80211_vif_is_mesh(&sdata->vif)) {
c5dd9c2b 527#ifdef CONFIG_MAC80211_MESH
c5dd9c2b
LCC		 528 sinfo->filled |= STATION_INFO_LLID |
529 STATION_INFO_PLID |
3f52b7e3
MP		 530 STATION_INFO_PLINK_STATE |
531 STATION_INFO_LOCAL_PM |
532 STATION_INFO_PEER_PM |
533 STATION_INFO_NONPEER_PM;
c5dd9c2b 534
6f101ef0
CYY		 535 sinfo->llid = sta->llid;
536 sinfo->plid = sta->plid;
c5dd9c2b 537 sinfo->plink_state = sta->plink_state;
d299a1f2
JC		 538 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
539 sinfo->filled |= STATION_INFO_T_OFFSET;
540 sinfo->t_offset = sta->t_offset;
541 }
3f52b7e3
MP		 542 sinfo->local_pm = sta->local_pm;
543 sinfo->peer_pm = sta->peer_pm;
544 sinfo->nonpeer_pm = sta->nonpeer_pm;
c5dd9c2b 545#endif
902acc78 546 }
f4263c98
PS		 547
548 sinfo->bss_param.flags = 0;
549 if (sdata->vif.bss_conf.use_cts_prot)
550 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
551 if (sdata->vif.bss_conf.use_short_preamble)
552 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
553 if (sdata->vif.bss_conf.use_short_slot)
554 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
555 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
556 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
7a724767
HS		 557
558 sinfo->sta_flags.set = 0;
559 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
560 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
561 BIT(NL80211_STA_FLAG_WME) |
562 BIT(NL80211_STA_FLAG_MFP) |
e4121562 563 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
d582cffb 564 BIT(NL80211_STA_FLAG_ASSOCIATED) |
e4121562 565 BIT(NL80211_STA_FLAG_TDLS_PEER);
7a724767
HS		 566 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
567 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
568 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
569 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
570 if (test_sta_flag(sta, WLAN_STA_WME))
571 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
572 if (test_sta_flag(sta, WLAN_STA_MFP))
573 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
574 if (test_sta_flag(sta, WLAN_STA_AUTH))
575 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
d582cffb
JB		 576 if (test_sta_flag(sta, WLAN_STA_ASSOC))
577 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
e4121562
HS		 578 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
579 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
c5dd9c2b
LCC		 580}
581
b1ab7925
BG		 582static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
583 "rx_packets", "rx_bytes", "wep_weak_iv_count",
584 "rx_duplicates", "rx_fragments", "rx_dropped",
585 "tx_packets", "tx_bytes", "tx_fragments",
586 "tx_filtered", "tx_retry_failed", "tx_retries",
3073a7c2
BG		 587 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
588 "channel", "noise", "ch_time", "ch_time_busy",
589 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
b1ab7925
BG		 590};
591#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
592
593static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
594 struct net_device *dev,
595 int sset)
596{
e352114f
BG		 597 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
598 int rv = 0;
599
b1ab7925 600 if (sset == ETH_SS_STATS)
e352114f
BG		 601 rv += STA_STATS_LEN;
602
603 rv += drv_get_et_sset_count(sdata, sset);
b1ab7925 604
e352114f
BG		 605 if (rv == 0)
606 return -EOPNOTSUPP;
607 return rv;
b1ab7925
BG		 608}
609
610static void ieee80211_get_et_stats(struct wiphy *wiphy,
611 struct net_device *dev,
612 struct ethtool_stats *stats,
613 u64 *data)
614{
615 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a
JB		 616 struct ieee80211_chanctx_conf *chanctx_conf;
617 struct ieee80211_channel *channel;
b1ab7925
BG		 618 struct sta_info *sta;
619 struct ieee80211_local *local = sdata->local;
3073a7c2
BG		 620 struct station_info sinfo;
621 struct survey_info survey;
622 int i, q;
623#define STA_STATS_SURVEY_LEN 7
b1ab7925
BG		 624
625 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
626
627#define ADD_STA_STATS(sta) \
628 do { \
629 data[i++] += sta->rx_packets; \
630 data[i++] += sta->rx_bytes; \
631 data[i++] += sta->wep_weak_iv_count; \
632 data[i++] += sta->num_duplicates; \
633 data[i++] += sta->rx_fragments; \
634 data[i++] += sta->rx_dropped; \
635 \
560d2682
JB		 636 data[i++] += sinfo.tx_packets; \
637 data[i++] += sinfo.tx_bytes; \
b1ab7925
BG		 638 data[i++] += sta->tx_fragments; \
639 data[i++] += sta->tx_filtered_count; \
640 data[i++] += sta->tx_retry_failed; \
641 data[i++] += sta->tx_retry_count; \
642 data[i++] += sta->beacon_loss_count; \
643 } while (0)
644
645 /* For Managed stations, find the single station based on BSSID
646 * and use that. For interface types, iterate through all available
647 * stations and add stats for any station that is assigned to this
648 * network device.
649 */
650
66572cfc 651 mutex_lock(&local->sta_mtx);
b1ab7925
BG		 652
653 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
654 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
3073a7c2
BG		 655
656 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
657 goto do_survey;
658
560d2682
JB		 659 sinfo.filled = 0;
660 sta_set_sinfo(sta, &sinfo);
661
3073a7c2
BG		 662 i = 0;
663 ADD_STA_STATS(sta);
664
665 data[i++] = sta->sta_state;
666
3073a7c2 667
5204267d 668 if (sinfo.filled & STATION_INFO_TX_BITRATE)
3073a7c2
BG		 669 data[i] = 100000 *
670 cfg80211_calculate_bitrate(&sinfo.txrate);
671 i++;
5204267d 672 if (sinfo.filled & STATION_INFO_RX_BITRATE)
3073a7c2
BG		 673 data[i] = 100000 *
674 cfg80211_calculate_bitrate(&sinfo.rxrate);
675 i++;
676
5204267d 677 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
3073a7c2
BG		 678 data[i] = (u8)sinfo.signal_avg;
679 i++;
b1ab7925 680 } else {
66572cfc 681 list_for_each_entry(sta, &local->sta_list, list) {
b1ab7925
BG		 682 /* Make sure this station belongs to the proper dev */
683 if (sta->sdata->dev != dev)
684 continue;
685
e13bae4f
JB		 686 sinfo.filled = 0;
687 sta_set_sinfo(sta, &sinfo);
b1ab7925
BG		 688 i = 0;
689 ADD_STA_STATS(sta);
b1ab7925
BG		 690 }
691 }
692
3073a7c2
BG		 693do_survey:
694 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
695 /* Get survey stats for current channel */
55de908a 696 survey.filled = 0;
3073a7c2 697
55de908a
JB		 698 rcu_read_lock();
699 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
700 if (chanctx_conf)
4bf88530 701 channel = chanctx_conf->def.chan;
55de908a
JB		 702 else
703 channel = NULL;
704 rcu_read_unlock();
705
706 if (channel) {
707 q = 0;
708 do {
709 survey.filled = 0;
710 if (drv_get_survey(local, q, &survey) != 0) {
711 survey.filled = 0;
712 break;
713 }
714 q++;
715 } while (channel != survey.channel);
3073a7c2
BG		 716 }
717
718 if (survey.filled)
719 data[i++] = survey.channel->center_freq;
720 else
721 data[i++] = 0;
722 if (survey.filled & SURVEY_INFO_NOISE_DBM)
723 data[i++] = (u8)survey.noise;
724 else
725 data[i++] = -1LL;
726 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
727 data[i++] = survey.channel_time;
728 else
729 data[i++] = -1LL;
730 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
731 data[i++] = survey.channel_time_busy;
732 else
733 data[i++] = -1LL;
734 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
735 data[i++] = survey.channel_time_ext_busy;
736 else
737 data[i++] = -1LL;
738 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
739 data[i++] = survey.channel_time_rx;
740 else
741 data[i++] = -1LL;
742 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
743 data[i++] = survey.channel_time_tx;
744 else
745 data[i++] = -1LL;
746
66572cfc 747 mutex_unlock(&local->sta_mtx);
e352114f 748
3073a7c2
BG		 749 if (WARN_ON(i != STA_STATS_LEN))
750 return;
751
e352114f 752 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
b1ab7925
BG		 753}
754
755static void ieee80211_get_et_strings(struct wiphy *wiphy,
756 struct net_device *dev,
757 u32 sset, u8 *data)
758{
e352114f
BG		 759 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
760 int sz_sta_stats = 0;
761
b1ab7925 762 if (sset == ETH_SS_STATS) {
e352114f 763 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
bd500af2 764 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
b1ab7925 765 }
e352114f 766 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
b1ab7925 767}
c5dd9c2b
LCC		 768
769static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
770 int idx, u8 *mac, struct station_info *sinfo)
771{
3b53fde8 772 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 773 struct ieee80211_local *local = sdata->local;
c5dd9c2b 774 struct sta_info *sta;
d0709a65
JB		 775 int ret = -ENOENT;
776
66572cfc 777 mutex_lock(&local->sta_mtx);
c5dd9c2b 778
3b53fde8 779 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 780 if (sta) {
781 ret = 0;
17741cdc 782 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 783 sta_set_sinfo(sta, sinfo);
784 }
c5dd9c2b 785
66572cfc 786 mutex_unlock(&local->sta_mtx);
c5dd9c2b 787
d0709a65 788 return ret;
c5dd9c2b
LCC		 789}
790
1289723e
HS		 791static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
792 int idx, struct survey_info *survey)
793{
794 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
795
1289723e
HS		 796 return drv_get_survey(local, idx, survey);
797}
798
7bbdd2d9 799static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
2ec600d6 800 u8 *mac, struct station_info *sinfo)
7bbdd2d9 801{
abe60632 802 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 803 struct ieee80211_local *local = sdata->local;
7bbdd2d9 804 struct sta_info *sta;
d0709a65 805 int ret = -ENOENT;
7bbdd2d9 806
66572cfc 807 mutex_lock(&local->sta_mtx);
7bbdd2d9 808
0e5ded5a 809 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 810 if (sta) {
811 ret = 0;
812 sta_set_sinfo(sta, sinfo);
813 }
814
66572cfc 815 mutex_unlock(&local->sta_mtx);
d0709a65
JB		 816
817 return ret;
7bbdd2d9
JB		 818}
819
55de908a 820static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
683b6d3b 821 struct cfg80211_chan_def *chandef)
3d9e6e12
JB		 822{
823 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a
JB		 824 struct ieee80211_sub_if_data *sdata;
825 int ret = 0;
3d9e6e12 826
4bf88530 827 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
55de908a 828 return 0;
3d9e6e12 829
55de908a
JB		 830 mutex_lock(&local->iflist_mtx);
831 if (local->use_chanctx) {
832 sdata = rcu_dereference_protected(
833 local->monitor_sdata,
834 lockdep_is_held(&local->iflist_mtx));
835 if (sdata) {
836 ieee80211_vif_release_channel(sdata);
4bf88530 837 ret = ieee80211_vif_use_channel(sdata, chandef,
55de908a
JB		 838 IEEE80211_CHANCTX_EXCLUSIVE);
839 }
840 } else if (local->open_count == local->monitors) {
675a0b04 841 local->_oper_chandef = *chandef;
55de908a
JB		 842 ieee80211_hw_config(local, 0);
843 }
3d9e6e12 844
4bf88530
JB		 845 if (ret == 0)
846 local->monitor_chandef = *chandef;
55de908a 847 mutex_unlock(&local->iflist_mtx);
3d9e6e12 848
55de908a 849 return ret;
e8c9bd5b
JB		 850}
851
02945821 852static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
8860020e 853 const u8 *resp, size_t resp_len)
02945821 854{
aa7a0080 855 struct probe_resp *new, *old;
02945821
AN		 856
857 if (!resp || !resp_len)
aba4e6ff 858 return 1;
02945821 859
7ca133bc 860 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
02945821 861
aa7a0080 862 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
02945821
AN		 863 if (!new)
864 return -ENOMEM;
865
aa7a0080
ES		 866 new->len = resp_len;
867 memcpy(new->data, resp, resp_len);
02945821
AN		 868
869 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
aa7a0080
ES		 870 if (old)
871 kfree_rcu(old, rcu_head);
02945821
AN		 872
873 return 0;
874}
875
73da7d5b
SW		 876int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
877 struct cfg80211_beacon_data *params)
5dfdaf58
JB		 878{
879 struct beacon_data *new, *old;
880 int new_head_len, new_tail_len;
8860020e
JB		 881 int size, err;
882 u32 changed = BSS_CHANGED_BEACON;
5dfdaf58 883
7ca133bc
SW		 884 old = sdata_dereference(sdata->u.ap.beacon, sdata);
885
5dfdaf58 886
5dfdaf58
JB		 887 /* Need to have a beacon head if we don't have one yet */
888 if (!params->head && !old)
8860020e 889 return -EINVAL;
5dfdaf58
JB		 890
891 /* new or old head? */
892 if (params->head)
893 new_head_len = params->head_len;
894 else
895 new_head_len = old->head_len;
896
897 /* new or old tail? */
898 if (params->tail || !old)
899 /* params->tail_len will be zero for !params->tail */
900 new_tail_len = params->tail_len;
901 else
902 new_tail_len = old->tail_len;
903
904 size = sizeof(*new) + new_head_len + new_tail_len;
905
906 new = kzalloc(size, GFP_KERNEL);
907 if (!new)
908 return -ENOMEM;
909
910 /* start filling the new info now */
911
5dfdaf58
JB		 912 /*
913 * pointers go into the block we allocated,
914 * memory is | beacon_data | head | tail |
915 */
916 new->head = ((u8 *) new) + sizeof(*new);
917 new->tail = new->head + new_head_len;
918 new->head_len = new_head_len;
919 new->tail_len = new_tail_len;
920
921 /* copy in head */
922 if (params->head)
923 memcpy(new->head, params->head, new_head_len);
924 else
925 memcpy(new->head, old->head, new_head_len);
926
927 /* copy in optional tail */
928 if (params->tail)
929 memcpy(new->tail, params->tail, new_tail_len);
930 else
931 if (old)
932 memcpy(new->tail, old->tail, new_tail_len);
933
02945821
AN		 934 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
935 params->probe_resp_len);
8860020e
JB		 936 if (err < 0)
937 return err;
938 if (err == 0)
02945821
AN		 939 changed |= BSS_CHANGED_AP_PROBE_RESP;
940
8860020e
JB		 941 rcu_assign_pointer(sdata->u.ap.beacon, new);
942
943 if (old)
944 kfree_rcu(old, rcu_head);
7827493b 945
8860020e 946 return changed;
5dfdaf58
JB		 947}
948
8860020e
JB		 949static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
950 struct cfg80211_ap_settings *params)
5dfdaf58 951{
8860020e 952 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5dfdaf58 953 struct beacon_data *old;
665c93a9 954 struct ieee80211_sub_if_data *vlan;
8860020e
JB		 955 u32 changed = BSS_CHANGED_BEACON_INT |
956 BSS_CHANGED_BEACON_ENABLED |
957 BSS_CHANGED_BEACON |
339afbf4
JB		 958 BSS_CHANGED_SSID |
959 BSS_CHANGED_P2P_PS;
8860020e 960 int err;
14db74bc 961
7ca133bc 962 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 963 if (old)
964 return -EALREADY;
965
04ecd257
JB		 966 /* TODO: make hostapd tell us what it wants */
967 sdata->smps_mode = IEEE80211_SMPS_OFF;
968 sdata->needed_rx_chains = sdata->local->rx_chains;
164eb02d 969 sdata->radar_required = params->radar_required;
04ecd257 970
4bf88530 971 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 972 IEEE80211_CHANCTX_SHARED);
aa430da4
JB		 973 if (err)
974 return err;
1f4ac5a6 975 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
aa430da4 976
665c93a9
JB		 977 /*
978 * Apply control port protocol, this allows us to
979 * not encrypt dynamic WEP control frames.
980 */
981 sdata->control_port_protocol = params->crypto.control_port_ethertype;
982 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
2475b1cc
MS		 983 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
984 &params->crypto,
985 sdata->vif.type);
986
665c93a9
JB		 987 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
988 vlan->control_port_protocol =
989 params->crypto.control_port_ethertype;
990 vlan->control_port_no_encrypt =
991 params->crypto.control_port_no_encrypt;
2475b1cc
MS		 992 vlan->encrypt_headroom =
993 ieee80211_cs_headroom(sdata->local,
994 &params->crypto,
995 vlan->vif.type);
665c93a9
JB		 996 }
997
8860020e
JB		 998 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
999 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 1000 sdata->vif.bss_conf.enable_beacon = true;
8860020e
JB		 1001
1002 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1003 if (params->ssid_len)
1004 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1005 params->ssid_len);
1006 sdata->vif.bss_conf.hidden_ssid =
1007 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1008
67baf663
JD		 1009 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1010 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1011 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1012 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1013 if (params->p2p_opp_ps)
1014 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1015 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 1016
8860020e
JB		 1017 err = ieee80211_assign_beacon(sdata, &params->beacon);
1018 if (err < 0)
1019 return err;
1020 changed |= err;
1021
1041638f
JB		 1022 err = drv_start_ap(sdata->local, sdata);
1023 if (err) {
7ca133bc
SW		 1024 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1025
1041638f
JB		 1026 if (old)
1027 kfree_rcu(old, rcu_head);
1028 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1029 return err;
1030 }
1031
8860020e
JB		 1032 ieee80211_bss_info_change_notify(sdata, changed);
1033
3edaf3e6
JB		 1034 netif_carrier_on(dev);
1035 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1036 netif_carrier_on(vlan->dev);
1037
665c93a9 1038 return 0;
5dfdaf58
JB		 1039}
1040
8860020e
JB		 1041static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1042 struct cfg80211_beacon_data *params)
5dfdaf58 1043{
14db74bc 1044 struct ieee80211_sub_if_data *sdata;
5dfdaf58 1045 struct beacon_data *old;
8860020e 1046 int err;
5dfdaf58 1047
14db74bc
JB		 1048 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1049
73da7d5b
SW		 1050 /* don't allow changing the beacon while CSA is in place - offset
1051 * of channel switch counter may change
1052 */
1053 if (sdata->vif.csa_active)
1054 return -EBUSY;
1055
7ca133bc 1056 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 1057 if (!old)
1058 return -ENOENT;
1059
8860020e
JB		 1060 err = ieee80211_assign_beacon(sdata, params);
1061 if (err < 0)
1062 return err;
1063 ieee80211_bss_info_change_notify(sdata, err);
1064 return 0;
5dfdaf58
JB		 1065}
1066
8860020e 1067static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 1068{
7b20b8e8
JB		 1069 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1070 struct ieee80211_sub_if_data *vlan;
1071 struct ieee80211_local *local = sdata->local;
1072 struct beacon_data *old_beacon;
1073 struct probe_resp *old_probe_resp;
d2859df5 1074 struct cfg80211_chan_def chandef;
14db74bc 1075
7ca133bc 1076 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 1077 if (!old_beacon)
5dfdaf58 1078 return -ENOENT;
7ca133bc 1079 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 1080
73da7d5b
SW		 1081 /* abort any running channel switch */
1082 sdata->vif.csa_active = false;
1083 cancel_work_sync(&sdata->csa_finalize_work);
687da132 1084 cancel_work_sync(&sdata->u.ap.request_smps_work);
73da7d5b 1085
7b20b8e8 1086 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 1087 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1088 netif_carrier_off(vlan->dev);
1089 netif_carrier_off(dev);
1090
7b20b8e8 1091 /* remove beacon and probe response */
a9b3cd7f 1092 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 1093 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1094 kfree_rcu(old_beacon, rcu_head);
1095 if (old_probe_resp)
1096 kfree_rcu(old_probe_resp, rcu_head);
8860020e 1097
2d4072a5 1098 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
75de9113
JB		 1099 sta_info_flush_defer(vlan);
1100 sta_info_flush_defer(sdata);
8ceb5955 1101 synchronize_net();
75de9113 1102 rcu_barrier();
7b4396bd 1103 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
75de9113 1104 sta_info_flush_cleanup(vlan);
7b4396bd
JB		 1105 ieee80211_free_keys(vlan);
1106 }
75de9113 1107 sta_info_flush_cleanup(sdata);
7b4396bd 1108 ieee80211_free_keys(sdata);
75de9113 1109
d6a83228 1110 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 1111 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 1112 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 1113 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 1114
a6b368f6 1115 if (sdata->wdev.cac_started) {
d2859df5 1116 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 1117 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 1118 cfg80211_cac_event(sdata->dev, &chandef,
1119 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 1120 GFP_KERNEL);
1121 }
1122
1041638f
JB		 1123 drv_stop_ap(sdata->local, sdata);
1124
7b20b8e8
JB		 1125 /* free all potentially still buffered bcast frames */
1126 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1127 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1128
1f4ac5a6 1129 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a
JB		 1130 ieee80211_vif_release_channel(sdata);
1131
2d0ddec5 1132 return 0;
5dfdaf58
JB		 1133}
1134
4fd6931e
JB		 1135/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1136struct iapp_layer2_update {
1137 u8 da[ETH_ALEN]; /* broadcast */
1138 u8 sa[ETH_ALEN]; /* STA addr */
1139 __be16 len; /* 6 */
1140 u8 dsap; /* 0 */
1141 u8 ssap; /* 0 */
1142 u8 control;
1143 u8 xid_info[3];
bc10502d 1144} __packed;
4fd6931e
JB		 1145
1146static void ieee80211_send_layer2_update(struct sta_info *sta)
1147{
1148 struct iapp_layer2_update *msg;
1149 struct sk_buff *skb;
1150
1151 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1152 * bridge devices */
1153
1154 skb = dev_alloc_skb(sizeof(*msg));
1155 if (!skb)
1156 return;
1157 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1158
1159 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1160 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1161
e83e6541 1162 eth_broadcast_addr(msg->da);
17741cdc 1163 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 1164 msg->len = htons(6);
1165 msg->dsap = 0;
1166 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1167 msg->control = 0xaf; /* XID response lsb.1111F101.
1168 * F=0 (no poll command; unsolicited frame) */
1169 msg->xid_info[0] = 0x81; /* XID format identifier */
1170 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1171 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1172
d0709a65
JB		 1173 skb->dev = sta->sdata->dev;
1174 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 1175 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 1176 netif_rx_ni(skb);
4fd6931e
JB		 1177}
1178
d582cffb
JB		 1179static int sta_apply_auth_flags(struct ieee80211_local *local,
1180 struct sta_info *sta,
1181 u32 mask, u32 set)
1182{
1183 int ret;
1184
1185 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1186 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1187 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1188 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1189 if (ret)
1190 return ret;
1191 }
1192
1193 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1194 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1195 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1196 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1197 if (ret)
1198 return ret;
1199 }
1200
1201 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1202 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1203 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1204 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1205 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1206 else
1207 ret = 0;
1208 if (ret)
1209 return ret;
1210 }
1211
1212 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1213 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1214 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1215 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1216 if (ret)
1217 return ret;
1218 }
1219
1220 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1221 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1222 test_sta_flag(sta, WLAN_STA_AUTH)) {
1223 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1224 if (ret)
1225 return ret;
1226 }
1227
1228 return 0;
1229}
1230
d9a7ddb0
JB		 1231static int sta_apply_parameters(struct ieee80211_local *local,
1232 struct sta_info *sta,
1233 struct station_parameters *params)
4fd6931e 1234{
d9a7ddb0 1235 int ret = 0;
8318d78a 1236 struct ieee80211_supported_band *sband;
d0709a65 1237 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 1238 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1239 u32 mask, set;
4fd6931e 1240
55de908a 1241 sband = local->hw.wiphy->bands[band];
ae5eb026 1242
eccb8e8f
JB		 1243 mask = params->sta_flags_mask;
1244 set = params->sta_flags_set;
73651ee6 1245
d582cffb
JB		 1246 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1247 /*
1248 * In mesh mode, ASSOCIATED isn't part of the nl80211
1249 * API but must follow AUTHENTICATED for driver state.
1250 */
1251 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1252 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1253 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1254 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1255 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1256 /*
1257 * TDLS -- everything follows authorized, but
1258 * only becoming authorized is possible, not
1259 * going back
1260 */
1261 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1262 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1263 BIT(NL80211_STA_FLAG_ASSOCIATED);
1264 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1265 BIT(NL80211_STA_FLAG_ASSOCIATED);
1266 }
eccb8e8f 1267 }
4fd6931e 1268
d582cffb
JB		 1269 ret = sta_apply_auth_flags(local, sta, mask, set);
1270 if (ret)
1271 return ret;
d9a7ddb0 1272
eccb8e8f 1273 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1274 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1275 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1276 else
1277 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1278 }
4fd6931e 1279
eccb8e8f 1280 if (mask & BIT(NL80211_STA_FLAG_WME)) {
39df600a 1281 if (set & BIT(NL80211_STA_FLAG_WME)) {
c2c98fde 1282 set_sta_flag(sta, WLAN_STA_WME);
39df600a 1283 sta->sta.wme = true;
c2c98fde
JB		 1284 } else {
1285 clear_sta_flag(sta, WLAN_STA_WME);
1286 sta->sta.wme = false;
39df600a 1287 }
eccb8e8f 1288 }
5394af4d 1289
eccb8e8f 1290 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1291 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1292 set_sta_flag(sta, WLAN_STA_MFP);
1293 else
1294 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1295 }
b39c48fa 1296
07ba55d7 1297 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1298 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1299 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1300 else
1301 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1302 }
4fd6931e 1303
3b9ce80c
JB		 1304 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1305 sta->sta.uapsd_queues = params->uapsd_queues;
1306 sta->sta.max_sp = params->max_sp;
1307 }
9533b4ac 1308
51b50fbe
JB		 1309 /*
1310 * cfg80211 validates this (1-2007) and allows setting the AID
1311 * only when creating a new station entry
1312 */
1313 if (params->aid)
1314 sta->sta.aid = params->aid;
1315
73651ee6 1316 /*
ba23d206
JB		 1317 * Some of the following updates would be racy if called on an
1318 * existing station, via ieee80211_change_station(). However,
1319 * all such changes are rejected by cfg80211 except for updates
1320 * changing the supported rates on an existing but not yet used
1321 * TDLS peer.
73651ee6
JB		 1322 */
1323
4fd6931e
JB		 1324 if (params->listen_interval >= 0)
1325 sta->listen_interval = params->listen_interval;
1326
1327 if (params->supported_rates) {
2103dec1
SW		 1328 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1329 sband, params->supported_rates,
1330 params->supported_rates_len,
1331 &sta->sta.supp_rates[band]);
4fd6931e 1332 }
c5dd9c2b 1333
d9fe60de 1334 if (params->ht_capa)
ef96a842 1335 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1336 params->ht_capa, sta);
36aedc90 1337
f461be3e
MP		 1338 if (params->vht_capa)
1339 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1340 params->vht_capa, sta);
f461be3e 1341
9c3990aa 1342 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1343#ifdef CONFIG_MAC80211_MESH
39886b61 1344 u32 changed = 0;
77ee7c89
JB		 1345
1346 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1347 switch (params->plink_state) {
57cf8043 1348 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1349 if (sta->plink_state != NL80211_PLINK_ESTAB)
1350 changed = mesh_plink_inc_estab_count(
1351 sdata);
1352 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1353
1354 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1355 changed |= ieee80211_mps_set_sta_local_pm(sta,
1356 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1357 break;
1358 case NL80211_PLINK_LISTEN:
57cf8043 1359 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1360 case NL80211_PLINK_OPN_SNT:
1361 case NL80211_PLINK_OPN_RCVD:
1362 case NL80211_PLINK_CNF_RCVD:
1363 case NL80211_PLINK_HOLDING:
1364 if (sta->plink_state == NL80211_PLINK_ESTAB)
1365 changed = mesh_plink_dec_estab_count(
1366 sdata);
9c3990aa 1367 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1368
1369 ieee80211_mps_sta_status_update(sta);
446075d7
MP		 1370 changed |= ieee80211_mps_set_sta_local_pm(sta,
1371 NL80211_MESH_POWER_UNKNOWN);
9c3990aa
JC		 1372 break;
1373 default:
1374 /* nothing */
1375 break;
1376 }
77ee7c89
JB		 1377 }
1378
1379 switch (params->plink_action) {
1380 case NL80211_PLINK_ACTION_NO_ACTION:
1381 /* nothing */
1382 break;
1383 case NL80211_PLINK_ACTION_OPEN:
1384 changed |= mesh_plink_open(sta);
1385 break;
1386 case NL80211_PLINK_ACTION_BLOCK:
1387 changed |= mesh_plink_block(sta);
1388 break;
1617bab8 1389 }
3f52b7e3
MP		 1390
1391 if (params->local_pm)
39886b61
TP		 1392 changed |=
1393 ieee80211_mps_set_sta_local_pm(sta,
1394 params->local_pm);
1395 ieee80211_bss_info_change_notify(sdata, changed);
4daf50f2 1396#endif
902acc78 1397 }
d9a7ddb0
JB		 1398
1399 return 0;
4fd6931e
JB		 1400}
1401
1402static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1403 u8 *mac, struct station_parameters *params)
1404{
14db74bc 1405 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1406 struct sta_info *sta;
1407 struct ieee80211_sub_if_data *sdata;
73651ee6 1408 int err;
b8d476c8 1409 int layer2_update;
4fd6931e 1410
4fd6931e
JB		 1411 if (params->vlan) {
1412 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1413
05c914fe
JB		 1414 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1415 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1416 return -EINVAL;
1417 } else
1418 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1419
b203ca39 1420 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1421 return -EINVAL;
1422
1423 if (is_multicast_ether_addr(mac))
1424 return -EINVAL;
1425
1426 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1427 if (!sta)
1428 return -ENOMEM;
4fd6931e 1429
d582cffb
JB		 1430 /*
1431 * defaults -- if userspace wants something else we'll
1432 * change it accordingly in sta_apply_parameters()
1433 */
77ee7c89
JB		 1434 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1435 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1436 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1437 }
4fd6931e 1438
d9a7ddb0
JB		 1439 err = sta_apply_parameters(local, sta, params);
1440 if (err) {
1441 sta_info_free(local, sta);
1442 return err;
1443 }
4fd6931e 1444
d64cf63e 1445 /*
77ee7c89
JB		 1446 * for TDLS, rate control should be initialized only when
1447 * rates are known and station is marked authorized
d64cf63e
AN		 1448 */
1449 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1450 rate_control_rate_init(sta);
4fd6931e 1451
b8d476c8
JM		 1452 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1453 sdata->vif.type == NL80211_IFTYPE_AP;
1454
34e89507 1455 err = sta_info_insert_rcu(sta);
73651ee6 1456 if (err) {
73651ee6
JB		 1457 rcu_read_unlock();
1458 return err;
1459 }
1460
b8d476c8 1461 if (layer2_update)
73651ee6
JB		 1462 ieee80211_send_layer2_update(sta);
1463
1464 rcu_read_unlock();
1465
4fd6931e
JB		 1466 return 0;
1467}
1468
1469static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1470 u8 *mac)
1471{
14db74bc 1472 struct ieee80211_sub_if_data *sdata;
4fd6931e 1473
14db74bc
JB		 1474 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1475
34e89507
JB		 1476 if (mac)
1477 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 1478
b998e8bb 1479 sta_info_flush(sdata);
4fd6931e
JB		 1480 return 0;
1481}
1482
1483static int ieee80211_change_station(struct wiphy *wiphy,
77ee7c89 1484 struct net_device *dev, u8 *mac,
4fd6931e
JB		 1485 struct station_parameters *params)
1486{
abe60632 1487 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1488 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1489 struct sta_info *sta;
1490 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1491 enum cfg80211_station_type statype;
35b88623 1492 int err;
4fd6931e 1493
87be1e1e 1494 mutex_lock(&local->sta_mtx);
98dd6a57 1495
0e5ded5a 1496 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1497 if (!sta) {
77ee7c89
JB		 1498 err = -ENOENT;
1499 goto out_err;
98dd6a57 1500 }
4fd6931e 1501
77ee7c89
JB		 1502 switch (sdata->vif.type) {
1503 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1504 if (sdata->u.mesh.user_mpm)
eef941e6 1505 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1506 else
eef941e6 1507 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1508 break;
1509 case NL80211_IFTYPE_ADHOC:
1510 statype = CFG80211_STA_IBSS;
1511 break;
1512 case NL80211_IFTYPE_STATION:
1513 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1514 statype = CFG80211_STA_AP_STA;
1515 break;
1516 }
1517 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1518 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1519 else
1520 statype = CFG80211_STA_TDLS_PEER_SETUP;
1521 break;
1522 case NL80211_IFTYPE_AP:
1523 case NL80211_IFTYPE_AP_VLAN:
1524 statype = CFG80211_STA_AP_CLIENT;
1525 break;
1526 default:
1527 err = -EOPNOTSUPP;
1528 goto out_err;
bdd90d5e
JB		 1529 }
1530
77ee7c89
JB		 1531 err = cfg80211_check_station_change(wiphy, params, statype);
1532 if (err)
1533 goto out_err;
1534
d0709a65 1535 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1536 bool prev_4addr = false;
1537 bool new_4addr = false;
1538
4fd6931e
JB		 1539 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1540
9bc383de 1541 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1542 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1543 err = -EBUSY;
1544 goto out_err;
3305443c 1545 }
f14543ee 1546
cf778b00 1547 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1548 new_4addr = true;
1549 }
1550
1551 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1552 sta->sdata->u.vlan.sta) {
1553 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1554 prev_4addr = true;
f14543ee
FF		 1555 }
1556
14db74bc 1557 sta->sdata = vlansdata;
7e3ed02c
FF		 1558
1559 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1560 prev_4addr != new_4addr) {
1561 if (new_4addr)
1562 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1563 else
1564 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1565 }
1566
4fd6931e
JB		 1567 ieee80211_send_layer2_update(sta);
1568 }
1569
35b88623 1570 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1571 if (err)
1572 goto out_err;
4fd6931e 1573
77ee7c89
JB		 1574 /* When peer becomes authorized, init rate control as well */
1575 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1576 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
d64cf63e
AN		 1577 rate_control_rate_init(sta);
1578
87be1e1e 1579 mutex_unlock(&local->sta_mtx);
98dd6a57 1580
687da132
EG		 1581 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1582 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1583 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1584 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1585 sta_info_tx_streams(sta) != 1) {
1586 ht_dbg(sta->sdata,
1587 "%pM just authorized and MIMO capable - update SMPS\n",
1588 sta->sta.addr);
1589 ieee80211_send_smps_action(sta->sdata,
1590 sta->sdata->bss->req_smps,
1591 sta->sta.addr,
1592 sta->sdata->vif.bss_conf.bssid);
1593 }
1594
808118cb 1595 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1596 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1597 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1598 ieee80211_recalc_ps_vif(sdata);
1599 }
77ee7c89 1600
4fd6931e 1601 return 0;
77ee7c89
JB		 1602out_err:
1603 mutex_unlock(&local->sta_mtx);
1604 return err;
4fd6931e
JB		 1605}
1606
c5dd9c2b
LCC		 1607#ifdef CONFIG_MAC80211_MESH
1608static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1609 u8 *dst, u8 *next_hop)
1610{
14db74bc 1611 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1612 struct mesh_path *mpath;
1613 struct sta_info *sta;
c5dd9c2b 1614
14db74bc
JB		 1615 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1616
d0709a65 1617 rcu_read_lock();
abe60632 1618 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1619 if (!sta) {
1620 rcu_read_unlock();
c5dd9c2b 1621 return -ENOENT;
d0709a65 1622 }
c5dd9c2b 1623
ae76eef0
BC		 1624 mpath = mesh_path_add(sdata, dst);
1625 if (IS_ERR(mpath)) {
d0709a65 1626 rcu_read_unlock();
ae76eef0 1627 return PTR_ERR(mpath);
d0709a65 1628 }
c5dd9c2b 1629
c5dd9c2b 1630 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1631
c5dd9c2b
LCC		 1632 rcu_read_unlock();
1633 return 0;
1634}
1635
1636static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
bf7cd94d 1637 u8 *dst)
c5dd9c2b 1638{
f698d856
JBG		 1639 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1640
c5dd9c2b 1641 if (dst)
bf7cd94d 1642 return mesh_path_del(sdata, dst);
c5dd9c2b 1643
ece1a2e7 1644 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1645 return 0;
1646}
1647
1648static int ieee80211_change_mpath(struct wiphy *wiphy,
1649 struct net_device *dev,
1650 u8 *dst, u8 *next_hop)
1651{
14db74bc 1652 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1653 struct mesh_path *mpath;
1654 struct sta_info *sta;
1655
14db74bc
JB		 1656 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1657
d0709a65
JB		 1658 rcu_read_lock();
1659
abe60632 1660 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1661 if (!sta) {
1662 rcu_read_unlock();
c5dd9c2b 1663 return -ENOENT;
d0709a65 1664 }
c5dd9c2b 1665
bf7cd94d 1666 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1667 if (!mpath) {
1668 rcu_read_unlock();
c5dd9c2b
LCC		 1669 return -ENOENT;
1670 }
1671
1672 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1673
c5dd9c2b
LCC		 1674 rcu_read_unlock();
1675 return 0;
1676}
1677
1678static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1679 struct mpath_info *pinfo)
1680{
a3836e02
JB		 1681 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1682
1683 if (next_hop_sta)
1684 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1685 else
1686 memset(next_hop, 0, ETH_ALEN);
1687
7ce8c7a3
LAYS		 1688 memset(pinfo, 0, sizeof(*pinfo));
1689
f5ea9120
JB		 1690 pinfo->generation = mesh_paths_generation;
1691
c5dd9c2b 1692 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1693 MPATH_INFO_SN |
c5dd9c2b
LCC		 1694 MPATH_INFO_METRIC |
1695 MPATH_INFO_EXPTIME |
1696 MPATH_INFO_DISCOVERY_TIMEOUT |
1697 MPATH_INFO_DISCOVERY_RETRIES |
1698 MPATH_INFO_FLAGS;
1699
1700 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1701 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1702 pinfo->metric = mpath->metric;
1703 if (time_before(jiffies, mpath->exp_time))
1704 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1705 pinfo->discovery_timeout =
1706 jiffies_to_msecs(mpath->discovery_timeout);
1707 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1708 if (mpath->flags & MESH_PATH_ACTIVE)
1709 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1710 if (mpath->flags & MESH_PATH_RESOLVING)
1711 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1712 if (mpath->flags & MESH_PATH_SN_VALID)
1713 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1714 if (mpath->flags & MESH_PATH_FIXED)
1715 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1716 if (mpath->flags & MESH_PATH_RESOLVED)
1717 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1718}
1719
1720static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1721 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1722
1723{
14db74bc 1724 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1725 struct mesh_path *mpath;
1726
14db74bc
JB		 1727 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1728
c5dd9c2b 1729 rcu_read_lock();
bf7cd94d 1730 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1731 if (!mpath) {
1732 rcu_read_unlock();
1733 return -ENOENT;
1734 }
1735 memcpy(dst, mpath->dst, ETH_ALEN);
1736 mpath_set_pinfo(mpath, next_hop, pinfo);
1737 rcu_read_unlock();
1738 return 0;
1739}
1740
1741static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1742 int idx, u8 *dst, u8 *next_hop,
1743 struct mpath_info *pinfo)
1744{
14db74bc 1745 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1746 struct mesh_path *mpath;
1747
14db74bc
JB		 1748 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1749
c5dd9c2b 1750 rcu_read_lock();
bf7cd94d 1751 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1752 if (!mpath) {
1753 rcu_read_unlock();
1754 return -ENOENT;
1755 }
1756 memcpy(dst, mpath->dst, ETH_ALEN);
1757 mpath_set_pinfo(mpath, next_hop, pinfo);
1758 rcu_read_unlock();
1759 return 0;
1760}
93da9cc1 1761
24bdd9f4 1762static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1763 struct net_device *dev,
1764 struct mesh_config *conf)
1765{
1766 struct ieee80211_sub_if_data *sdata;
1767 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1768
93da9cc1 1769 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1770 return 0;
1771}
1772
1773static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1774{
1775 return (mask >> (parm-1)) & 0x1;
1776}
1777
c80d545d
JC		 1778static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1779 const struct mesh_setup *setup)
1780{
1781 u8 *new_ie;
1782 const u8 *old_ie;
4bb62344
CYY		 1783 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1784 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1785
581a8b0f 1786 /* allocate information elements */
c80d545d 1787 new_ie = NULL;
581a8b0f 1788 old_ie = ifmsh->ie;
c80d545d 1789
581a8b0f
JC		 1790 if (setup->ie_len) {
1791 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1792 GFP_KERNEL);
1793 if (!new_ie)
1794 return -ENOMEM;
1795 }
581a8b0f
JC		 1796 ifmsh->ie_len = setup->ie_len;
1797 ifmsh->ie = new_ie;
1798 kfree(old_ie);
c80d545d
JC		 1799
1800 /* now copy the rest of the setup parameters */
1801 ifmsh->mesh_id_len = setup->mesh_id_len;
1802 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1803 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1804 ifmsh->mesh_pp_id = setup->path_sel_proto;
1805 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1806 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1807 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1808 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1809 if (setup->is_authenticated)
1810 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1811 if (setup->is_secure)
1812 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1813
4bb62344
CYY		 1814 /* mcast rate setting in Mesh Node */
1815 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1816 sizeof(setup->mcast_rate));
ffb3cf30 1817 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1818
9bdbf04d
MP		 1819 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1820 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1821
c80d545d
JC		 1822 return 0;
1823}
1824
24bdd9f4 1825static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1826 struct net_device *dev, u32 mask,
1827 const struct mesh_config *nconf)
93da9cc1 1828{
1829 struct mesh_config *conf;
1830 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1831 struct ieee80211_if_mesh *ifmsh;
1832
93da9cc1 1833 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1834 ifmsh = &sdata->u.mesh;
93da9cc1 1835
93da9cc1 1836 /* Set the config options which we are interested in setting */
1837 conf = &(sdata->u.mesh.mshcfg);
1838 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1839 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1840 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1841 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1842 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1843 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1844 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1845 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1846 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1847 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1848 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1849 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1850 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1851 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1852 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1853 if (ifmsh->user_mpm)
1854 return -EBUSY;
93da9cc1 1855 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1856 }
d299a1f2
JC		 1857 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1858 conf->dot11MeshNbrOffsetMaxNeighbor =
1859 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1860 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1861 conf->dot11MeshHWMPmaxPREQretries =
1862 nconf->dot11MeshHWMPmaxPREQretries;
1863 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1864 conf->path_refresh_time = nconf->path_refresh_time;
1865 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1866 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1867 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1868 conf->dot11MeshHWMPactivePathTimeout =
1869 nconf->dot11MeshHWMPactivePathTimeout;
1870 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1871 conf->dot11MeshHWMPpreqMinInterval =
1872 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1873 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1874 conf->dot11MeshHWMPperrMinInterval =
1875 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1876 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1877 mask))
1878 conf->dot11MeshHWMPnetDiameterTraversalTime =
1879 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1880 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1881 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1882 ieee80211_mesh_root_setup(ifmsh);
1883 }
16dd7267 1884 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1885 /* our current gate announcement implementation rides on root
1886 * announcements, so require this ifmsh to also be a root node
1887 * */
1888 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1889 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1890 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1891 ieee80211_mesh_root_setup(ifmsh);
1892 }
16dd7267
JC		 1893 conf->dot11MeshGateAnnouncementProtocol =
1894 nconf->dot11MeshGateAnnouncementProtocol;
1895 }
a4f606ea 1896 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1897 conf->dot11MeshHWMPRannInterval =
1898 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1899 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1900 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1901 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1902 /* our RSSI threshold implementation is supported only for
1903 * devices that report signal in dBm.
1904 */
1905 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1906 return -ENOTSUPP;
1907 conf->rssi_threshold = nconf->rssi_threshold;
1908 }
70c33eaa
AN		 1909 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1910 conf->ht_opmode = nconf->ht_opmode;
1911 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1912 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1913 }
ac1073a6
CYY		 1914 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1915 conf->dot11MeshHWMPactivePathToRootTimeout =
1916 nconf->dot11MeshHWMPactivePathToRootTimeout;
1917 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1918 conf->dot11MeshHWMProotInterval =
1919 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1920 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1921 conf->dot11MeshHWMPconfirmationInterval =
1922 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1923 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1924 conf->power_mode = nconf->power_mode;
1925 ieee80211_mps_local_status_update(sdata);
1926 }
2b5e1967 1927 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1928 conf->dot11MeshAwakeWindowDuration =
1929 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1930 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1931 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1932 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1933 return 0;
1934}
1935
29cbe68c
JB		 1936static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1937 const struct mesh_config *conf,
1938 const struct mesh_setup *setup)
1939{
1940 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1941 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1942 int err;
29cbe68c 1943
c80d545d
JC		 1944 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1945 err = copy_mesh_setup(ifmsh, setup);
1946 if (err)
1947 return err;
cc1d2806 1948
04ecd257
JB		 1949 /* can mesh use other SMPS modes? */
1950 sdata->smps_mode = IEEE80211_SMPS_OFF;
1951 sdata->needed_rx_chains = sdata->local->rx_chains;
1952
4bf88530 1953 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1954 IEEE80211_CHANCTX_SHARED);
cc1d2806
JB		 1955 if (err)
1956 return err;
1957
2b5e1967 1958 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1959}
1960
1961static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1962{
1963 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1964
1965 ieee80211_stop_mesh(sdata);
55de908a 1966 ieee80211_vif_release_channel(sdata);
29cbe68c
JB		 1967
1968 return 0;
1969}
c5dd9c2b
LCC		 1970#endif
1971
9f1ba906
JM		 1972static int ieee80211_change_bss(struct wiphy *wiphy,
1973 struct net_device *dev,
1974 struct bss_parameters *params)
1975{
55de908a
JB		 1976 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1977 enum ieee80211_band band;
9f1ba906
JM		 1978 u32 changed = 0;
1979
7ca133bc 1980 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1981 return -ENOENT;
1982
1983 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1984
9f1ba906 1985 if (params->use_cts_prot >= 0) {
bda3933a 1986 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1987 changed |= BSS_CHANGED_ERP_CTS_PROT;
1988 }
1989 if (params->use_short_preamble >= 0) {
bda3933a 1990 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1991 params->use_short_preamble;
1992 changed |= BSS_CHANGED_ERP_PREAMBLE;
1993 }
43d35343
FF		 1994
1995 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1996 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1997 sdata->vif.bss_conf.use_short_slot = true;
1998 changed |= BSS_CHANGED_ERP_SLOT;
1999 }
2000
9f1ba906 2001 if (params->use_short_slot_time >= 0) {
bda3933a 2002 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 2003 params->use_short_slot_time;
2004 changed |= BSS_CHANGED_ERP_SLOT;
2005 }
2006
90c97a04 2007 if (params->basic_rates) {
2103dec1
SW		 2008 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2009 wiphy->bands[band],
2010 params->basic_rates,
2011 params->basic_rates_len,
2012 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 2013 changed |= BSS_CHANGED_BASIC_RATES;
2014 }
2015
7b7b5e56
FF		 2016 if (params->ap_isolate >= 0) {
2017 if (params->ap_isolate)
2018 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2019 else
2020 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2021 }
2022
80d7e403
HS		 2023 if (params->ht_opmode >= 0) {
2024 sdata->vif.bss_conf.ht_operation_mode =
2025 (u16) params->ht_opmode;
2026 changed |= BSS_CHANGED_HT;
2027 }
2028
339afbf4 2029 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 2030 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2031 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2032 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2033 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 2034 changed |= BSS_CHANGED_P2P_PS;
2035 }
2036
67baf663
JD		 2037 if (params->p2p_opp_ps > 0) {
2038 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2039 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2040 changed |= BSS_CHANGED_P2P_PS;
2041 } else if (params->p2p_opp_ps == 0) {
2042 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2043 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 2044 changed |= BSS_CHANGED_P2P_PS;
2045 }
2046
9f1ba906
JM		 2047 ieee80211_bss_info_change_notify(sdata, changed);
2048
2049 return 0;
2050}
2051
31888487 2052static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 2053 struct net_device *dev,
31888487
JM		 2054 struct ieee80211_txq_params *params)
2055{
2056 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 2057 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 2058 struct ieee80211_tx_queue_params p;
2059
2060 if (!local->ops->conf_tx)
2061 return -EOPNOTSUPP;
2062
54bcbc69
JB		 2063 if (local->hw.queues < IEEE80211_NUM_ACS)
2064 return -EOPNOTSUPP;
2065
31888487
JM		 2066 memset(&p, 0, sizeof(p));
2067 p.aifs = params->aifs;
2068 p.cw_max = params->cwmax;
2069 p.cw_min = params->cwmin;
2070 p.txop = params->txop;
ab13315a
KV		 2071
2072 /*
2073 * Setting tx queue params disables u-apsd because it's only
2074 * called in master mode.
2075 */
2076 p.uapsd = false;
2077
a3304b0a
JB		 2078 sdata->tx_conf[params->ac] = p;
2079 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 2080 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 2081 "failed to set TX queue parameters for AC %d\n",
2082 params->ac);
31888487
JM		 2083 return -EINVAL;
2084 }
2085
7d25745d
JB		 2086 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2087
31888487
JM		 2088 return 0;
2089}
2090
665af4fc 2091#ifdef CONFIG_PM
ff1b6e69
JB		 2092static int ieee80211_suspend(struct wiphy *wiphy,
2093 struct cfg80211_wowlan *wowlan)
665af4fc 2094{
eecc4800 2095 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 2096}
2097
2098static int ieee80211_resume(struct wiphy *wiphy)
2099{
2100 return __ieee80211_resume(wiphy_priv(wiphy));
2101}
2102#else
2103#define ieee80211_suspend NULL
2104#define ieee80211_resume NULL
2105#endif
2106
2a519311 2107static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 2108 struct cfg80211_scan_request *req)
2109{
fd014284
JB		 2110 struct ieee80211_sub_if_data *sdata;
2111
2112 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 2113
2ca27bcf
JB		 2114 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2115 case NL80211_IFTYPE_STATION:
2116 case NL80211_IFTYPE_ADHOC:
2117 case NL80211_IFTYPE_MESH_POINT:
2118 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 2119 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 2120 break;
2121 case NL80211_IFTYPE_P2P_GO:
2122 if (sdata->local->ops->hw_scan)
2123 break;
e9d7732e
JB		 2124 /*
2125 * FIXME: implement NoA while scanning in software,
2126 * for now fall through to allow scanning only when
2127 * beaconing hasn't been configured yet
2128 */
2ca27bcf 2129 case NL80211_IFTYPE_AP:
5c95b940
AQ		 2130 /*
2131 * If the scan has been forced (and the driver supports
2132 * forcing), don't care about being beaconing already.
2133 * This will create problems to the attached stations (e.g. all
2134 * the frames sent while scanning on other channel will be
2135 * lost)
2136 */
2137 if (sdata->u.ap.beacon &&
2138 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2139 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2140 return -EOPNOTSUPP;
2141 break;
2142 default:
2143 return -EOPNOTSUPP;
2144 }
2a519311
JB		 2145
2146 return ieee80211_request_scan(sdata, req);
2147}
2148
79f460ca
LC		 2149static int
2150ieee80211_sched_scan_start(struct wiphy *wiphy,
2151 struct net_device *dev,
2152 struct cfg80211_sched_scan_request *req)
2153{
2154 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2155
2156 if (!sdata->local->ops->sched_scan_start)
2157 return -EOPNOTSUPP;
2158
2159 return ieee80211_request_sched_scan_start(sdata, req);
2160}
2161
2162static int
85a9994a 2163ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 2164{
2165 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2166
2167 if (!sdata->local->ops->sched_scan_stop)
2168 return -EOPNOTSUPP;
2169
85a9994a 2170 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 2171}
2172
636a5d36
JM		 2173static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2174 struct cfg80211_auth_request *req)
2175{
77fdaa12 2176 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2177}
2178
2179static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2180 struct cfg80211_assoc_request *req)
2181{
77fdaa12 2182 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2183}
2184
2185static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2186 struct cfg80211_deauth_request *req)
636a5d36 2187{
63c9c5e7 2188 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2189}
2190
2191static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2192 struct cfg80211_disassoc_request *req)
636a5d36 2193{
63c9c5e7 2194 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2195}
2196
af8cdcd8
JB		 2197static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2198 struct cfg80211_ibss_params *params)
2199{
55de908a 2200 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2201}
2202
2203static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2204{
55de908a 2205 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2206}
2207
391e53e3
AQ		 2208static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2209 int rate[IEEE80211_NUM_BANDS])
2210{
2211 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2212
9887dbf5
CD		 2213 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2214 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 2215
2216 return 0;
2217}
2218
b9a5f8ca
JM		 2219static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2220{
2221 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2222 int err;
b9a5f8ca 2223
f23a4780
AN		 2224 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2225 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2226
2227 if (err)
2228 return err;
2229 }
2230
310bc676
LT		 2231 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2232 err = drv_set_coverage_class(local, wiphy->coverage_class);
2233
2234 if (err)
2235 return err;
2236 }
2237
b9a5f8ca 2238 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2239 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2240
24487981
JB		 2241 if (err)
2242 return err;
b9a5f8ca
JM		 2243 }
2244
8bc83c24
JB		 2245 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2246 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2247 return -EINVAL;
b9a5f8ca 2248 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2249 }
2250 if (changed & WIPHY_PARAM_RETRY_LONG) {
2251 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2252 return -EINVAL;
b9a5f8ca 2253 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2254 }
b9a5f8ca
JM		 2255 if (changed &
2256 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2257 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2258
2259 return 0;
2260}
2261
7643a2c3 2262static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2263 struct wireless_dev *wdev,
fa61cf70 2264 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2265{
2266 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2267 struct ieee80211_sub_if_data *sdata;
7643a2c3 2268
1ea6f9c0
JB		 2269 if (wdev) {
2270 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2271
2272 switch (type) {
2273 case NL80211_TX_POWER_AUTOMATIC:
2274 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2275 break;
2276 case NL80211_TX_POWER_LIMITED:
2277 case NL80211_TX_POWER_FIXED:
2278 if (mbm < 0 || (mbm % 100))
2279 return -EOPNOTSUPP;
2280 sdata->user_power_level = MBM_TO_DBM(mbm);
2281 break;
2282 }
2283
2284 ieee80211_recalc_txpower(sdata);
2285
2286 return 0;
2287 }
55de908a 2288
7643a2c3 2289 switch (type) {
fa61cf70 2290 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2291 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
7643a2c3 2292 break;
fa61cf70 2293 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2294 case NL80211_TX_POWER_FIXED:
2295 if (mbm < 0 || (mbm % 100))
2296 return -EOPNOTSUPP;
fa61cf70 2297 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2298 break;
7643a2c3
JB		 2299 }
2300
1ea6f9c0
JB		 2301 mutex_lock(&local->iflist_mtx);
2302 list_for_each_entry(sdata, &local->interfaces, list)
2303 sdata->user_power_level = local->user_power_level;
2304 list_for_each_entry(sdata, &local->interfaces, list)
2305 ieee80211_recalc_txpower(sdata);
2306 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2307
2308 return 0;
2309}
2310
c8442118
JB		 2311static int ieee80211_get_tx_power(struct wiphy *wiphy,
2312 struct wireless_dev *wdev,
2313 int *dbm)
7643a2c3
JB		 2314{
2315 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2316 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2317
1ea6f9c0
JB		 2318 if (!local->use_chanctx)
2319 *dbm = local->hw.conf.power_level;
2320 else
2321 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2322
7643a2c3
JB		 2323 return 0;
2324}
2325
ab737a4f 2326static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2327 const u8 *addr)
ab737a4f
JB		 2328{
2329 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2330
2331 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2332
2333 return 0;
2334}
2335
1f87f7d3
JB		 2336static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2337{
2338 struct ieee80211_local *local = wiphy_priv(wiphy);
2339
2340 drv_rfkill_poll(local);
2341}
2342
aff89a9b 2343#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2344static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2345 struct wireless_dev *wdev,
2346 void *data, int len)
aff89a9b
JB		 2347{
2348 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2349 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2350
2351 if (!local->ops->testmode_cmd)
2352 return -EOPNOTSUPP;
2353
52981cd7
DS		 2354 if (wdev) {
2355 struct ieee80211_sub_if_data *sdata;
2356
2357 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2358 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2359 vif = &sdata->vif;
2360 }
2361
2362 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2363}
71063f0e
WYG		 2364
2365static int ieee80211_testmode_dump(struct wiphy *wiphy,
2366 struct sk_buff *skb,
2367 struct netlink_callback *cb,
2368 void *data, int len)
2369{
2370 struct ieee80211_local *local = wiphy_priv(wiphy);
2371
2372 if (!local->ops->testmode_dump)
2373 return -EOPNOTSUPP;
2374
2375 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2376}
aff89a9b
JB		 2377#endif
2378
687da132
EG		 2379int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2380 enum ieee80211_smps_mode smps_mode)
2381{
2382 struct sta_info *sta;
2383 enum ieee80211_smps_mode old_req;
2384 int i;
2385
2386 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2387 return -EINVAL;
2388
2389 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2390 return 0;
2391
2392 old_req = sdata->u.ap.req_smps;
2393 sdata->u.ap.req_smps = smps_mode;
2394
2395 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2396 if (old_req == smps_mode ||
2397 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2398 return 0;
2399
2400 /* If no associated stations, there's no need to do anything */
2401 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2402 sdata->smps_mode = smps_mode;
2403 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2404 return 0;
2405 }
2406
2407 ht_dbg(sdata,
2408 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2409 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2410
2411 mutex_lock(&sdata->local->sta_mtx);
2412 for (i = 0; i < STA_HASH_SIZE; i++) {
2413 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2414 lockdep_is_held(&sdata->local->sta_mtx));
2415 sta;
2416 sta = rcu_dereference_protected(sta->hnext,
2417 lockdep_is_held(&sdata->local->sta_mtx))) {
2418 /*
2419 * Only stations associated to our AP and
2420 * associated VLANs
2421 */
2422 if (sta->sdata->bss != &sdata->u.ap)
2423 continue;
2424
2425 /* This station doesn't support MIMO - skip it */
2426 if (sta_info_tx_streams(sta) == 1)
2427 continue;
2428
2429 /*
2430 * Don't wake up a STA just to send the action frame
2431 * unless we are getting more restrictive.
2432 */
2433 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2434 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2435 smps_mode)) {
2436 ht_dbg(sdata,
2437 "Won't send SMPS to sleeping STA %pM\n",
2438 sta->sta.addr);
2439 continue;
2440 }
2441
2442 /*
2443 * If the STA is not authorized, wait until it gets
2444 * authorized and the action frame will be sent then.
2445 */
2446 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2447 continue;
2448
2449 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2450 ieee80211_send_smps_action(sdata, smps_mode,
2451 sta->sta.addr,
2452 sdata->vif.bss_conf.bssid);
2453 }
2454 }
2455 mutex_unlock(&sdata->local->sta_mtx);
2456
2457 sdata->smps_mode = smps_mode;
2458 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2459
2460 return 0;
2461}
2462
2463int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2464 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2465{
2466 const u8 *ap;
2467 enum ieee80211_smps_mode old_req;
2468 int err;
2469
8d61ffa5 2470 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2471
687da132
EG		 2472 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2473 return -EINVAL;
2474
0f78231b
JB		 2475 old_req = sdata->u.mgd.req_smps;
2476 sdata->u.mgd.req_smps = smps_mode;
2477
2478 if (old_req == smps_mode &&
2479 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2480 return 0;
2481
2482 /*
2483 * If not associated, or current association is not an HT
04ecd257
JB		 2484 * association, there's no need to do anything, just store
2485 * the new value until we associate.
0f78231b
JB		 2486 */
2487 if (!sdata->u.mgd.associated ||
4bf88530 2488 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2489 return 0;
0f78231b 2490
0c1ad2ca 2491 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2492
2493 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2494 if (sdata->u.mgd.powersave)
2495 smps_mode = IEEE80211_SMPS_DYNAMIC;
2496 else
2497 smps_mode = IEEE80211_SMPS_OFF;
2498 }
2499
2500 /* send SM PS frame to AP */
2501 err = ieee80211_send_smps_action(sdata, smps_mode,
2502 ap, ap);
2503 if (err)
2504 sdata->u.mgd.req_smps = old_req;
2505
2506 return err;
2507}
2508
bc92afd9
JB		 2509static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2510 bool enabled, int timeout)
2511{
2512 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2513 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2514
ee1f6681
CYY		 2515 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
2516 sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
e5de30c9
BP		 2517 return -EOPNOTSUPP;
2518
bc92afd9
JB		 2519 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2520 return -EOPNOTSUPP;
2521
2522 if (enabled == sdata->u.mgd.powersave &&
ff616381 2523 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2524 return 0;
2525
2526 sdata->u.mgd.powersave = enabled;
ff616381 2527 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2528
0f78231b 2529 /* no change, but if automatic follow powersave */
ed405be5 2530 sdata_lock(sdata);
687da132 2531 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2532 sdata_unlock(sdata);
0f78231b 2533
bc92afd9
JB		 2534 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2535 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2536
2537 ieee80211_recalc_ps(local, -1);
ab095877 2538 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2539
2540 return 0;
2541}
2542
a97c13c3
JO		 2543static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2544 struct net_device *dev,
2545 s32 rssi_thold, u32 rssi_hyst)
2546{
2547 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2548 struct ieee80211_vif *vif = &sdata->vif;
2549 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2550
a97c13c3
JO		 2551 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2552 rssi_hyst == bss_conf->cqm_rssi_hyst)
2553 return 0;
2554
2555 bss_conf->cqm_rssi_thold = rssi_thold;
2556 bss_conf->cqm_rssi_hyst = rssi_hyst;
2557
2558 /* tell the driver upon association, unless already associated */
ea086359
JB		 2559 if (sdata->u.mgd.associated &&
2560 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2561 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2562
2563 return 0;
2564}
2565
9930380f
JB		 2566static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2567 struct net_device *dev,
2568 const u8 *addr,
2569 const struct cfg80211_bitrate_mask *mask)
2570{
2571 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2572 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2573 int i, ret;
2c7e6bc9 2574
554a43d5
EP		 2575 if (!ieee80211_sdata_running(sdata))
2576 return -ENETDOWN;
2577
bdbfd6b5
SM		 2578 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2579 ret = drv_set_bitrate_mask(local, sdata, mask);
2580 if (ret)
2581 return ret;
2582 }
9930380f 2583
19468413 2584 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2585 struct ieee80211_supported_band *sband = wiphy->bands[i];
2586 int j;
2587
37eb0b16 2588 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
19468413
SW		 2589 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
2590 sizeof(mask->control[i].mcs));
2ffbe6d3
FF		 2591
2592 sdata->rc_has_mcs_mask[i] = false;
2593 if (!sband)
2594 continue;
2595
2596 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2597 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2598 sdata->rc_has_mcs_mask[i] = true;
2599 break;
2600 }
19468413 2601 }
9930380f 2602
37eb0b16 2603 return 0;
9930380f
JB		 2604}
2605
2eb278e0
JB		 2606static int ieee80211_start_roc_work(struct ieee80211_local *local,
2607 struct ieee80211_sub_if_data *sdata,
2608 struct ieee80211_channel *channel,
2eb278e0 2609 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2610 struct sk_buff *txskb,
2611 enum ieee80211_roc_type type)
2eb278e0
JB		 2612{
2613 struct ieee80211_roc_work *roc, *tmp;
2614 bool queued = false;
21f83589 2615 int ret;
21f83589
JB		 2616
2617 lockdep_assert_held(&local->mtx);
2618
fe57d9f5
JB		 2619 if (local->use_chanctx && !local->ops->remain_on_channel)
2620 return -EOPNOTSUPP;
2621
2eb278e0
JB		 2622 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2623 if (!roc)
2624 return -ENOMEM;
2625
2626 roc->chan = channel;
2eb278e0
JB		 2627 roc->duration = duration;
2628 roc->req_duration = duration;
2629 roc->frame = txskb;
d339d5ca 2630 roc->type = type;
2eb278e0
JB		 2631 roc->mgmt_tx_cookie = (unsigned long)txskb;
2632 roc->sdata = sdata;
2633 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2634 INIT_LIST_HEAD(&roc->dependents);
2635
2636 /* if there's one pending or we're scanning, queue this one */
164eb02d
SW		 2637 if (!list_empty(&local->roc_list) ||
2638 local->scanning || local->radar_detect_enabled)
2eb278e0
JB		 2639 goto out_check_combine;
2640
2641 /* if not HW assist, just queue & schedule work */
2642 if (!local->ops->remain_on_channel) {
2643 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2644 goto out_queue;
2645 }
2646
2647 /* otherwise actually kick it off here (for error handling) */
2648
2649 /*
2650 * If the duration is zero, then the driver
2651 * wouldn't actually do anything. Set it to
2652 * 10 for now.
2653 *
2654 * TODO: cancel the off-channel operation
2655 * when we get the SKB's TX status and
2656 * the wait time was zero before.
2657 */
2658 if (!duration)
2659 duration = 10;
2660
d339d5ca 2661 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2662 if (ret) {
2eb278e0
JB		 2663 kfree(roc);
2664 return ret;
21f83589
JB		 2665 }
2666
2eb278e0
JB		 2667 roc->started = true;
2668 goto out_queue;
2669
2670 out_check_combine:
2671 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2672 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2673 continue;
2674
2675 /*
2676 * Extend this ROC if possible:
2677 *
2678 * If it hasn't started yet, just increase the duration
2679 * and add the new one to the list of dependents.
d339d5ca
IP		 2680 * If the type of the new ROC has higher priority, modify the
2681 * type of the previous one to match that of the new one.
2eb278e0
JB		 2682 */
2683 if (!tmp->started) {
2684 list_add_tail(&roc->list, &tmp->dependents);
2685 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2686 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2687 queued = true;
2688 break;
2689 }
2690
2691 /* If it has already started, it's more difficult ... */
2692 if (local->ops->remain_on_channel) {
2693 unsigned long j = jiffies;
2694
2695 /*
2696 * In the offloaded ROC case, if it hasn't begun, add
2697 * this new one to the dependent list to be handled
d339d5ca 2698 * when the master one begins. If it has begun,
2eb278e0
JB		 2699 * check that there's still a minimum time left and
2700 * if so, start this one, transmitting the frame, but
d339d5ca 2701 * add it to the list directly after this one with
2eb278e0
JB		 2702 * a reduced time so we'll ask the driver to execute
2703 * it right after finishing the previous one, in the
2704 * hope that it'll also be executed right afterwards,
2705 * effectively extending the old one.
2706 * If there's no minimum time left, just add it to the
2707 * normal list.
d339d5ca
IP		 2708 * TODO: the ROC type is ignored here, assuming that it
2709 * is better to immediately use the current ROC.
2eb278e0
JB		 2710 */
2711 if (!tmp->hw_begun) {
2712 list_add_tail(&roc->list, &tmp->dependents);
2713 queued = true;
2714 break;
2715 }
2716
2717 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2718 tmp->hw_start_time +
2719 msecs_to_jiffies(tmp->duration))) {
2720 int new_dur;
2721
2722 ieee80211_handle_roc_started(roc);
2723
2724 new_dur = roc->duration -
2725 jiffies_to_msecs(tmp->hw_start_time +
2726 msecs_to_jiffies(
2727 tmp->duration) -
2728 j);
2729
2730 if (new_dur > 0) {
2731 /* add right after tmp */
2732 list_add(&roc->list, &tmp->list);
2733 } else {
2734 list_add_tail(&roc->list,
2735 &tmp->dependents);
2736 }
2737 queued = true;
2738 }
2739 } else if (del_timer_sync(&tmp->work.timer)) {
2740 unsigned long new_end;
2741
2742 /*
2743 * In the software ROC case, cancel the timer, if
2744 * that fails then the finish work is already
2745 * queued/pending and thus we queue the new ROC
2746 * normally, if that succeeds then we can extend
2747 * the timer duration and TX the frame (if any.)
2748 */
2749
2750 list_add_tail(&roc->list, &tmp->dependents);
2751 queued = true;
2752
2753 new_end = jiffies + msecs_to_jiffies(roc->duration);
2754
2755 /* ok, it was started & we canceled timer */
2756 if (time_after(new_end, tmp->work.timer.expires))
2757 mod_timer(&tmp->work.timer, new_end);
2758 else
2759 add_timer(&tmp->work.timer);
2760
2761 ieee80211_handle_roc_started(roc);
2762 }
2763 break;
2764 }
2765
2766 out_queue:
2767 if (!queued)
2768 list_add_tail(&roc->list, &local->roc_list);
2769
2770 /*
50febf6a 2771 * cookie is either the roc cookie (for normal roc)
2eb278e0
JB		 2772 * or the SKB (for mgmt TX)
2773 */
50febf6a
JB		 2774 if (!txskb) {
2775 /* local->mtx protects this */
2776 local->roc_cookie_counter++;
2777 roc->cookie = local->roc_cookie_counter;
2778 /* wow, you wrapped 64 bits ... more likely a bug */
2779 if (WARN_ON(roc->cookie == 0)) {
2780 roc->cookie = 1;
2781 local->roc_cookie_counter++;
2782 }
2783 *cookie = roc->cookie;
2784 } else {
2eb278e0 2785 *cookie = (unsigned long)txskb;
50febf6a 2786 }
2eb278e0
JB		 2787
2788 return 0;
21f83589
JB		 2789}
2790
b8bc4b0a 2791static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2792 struct wireless_dev *wdev,
b8bc4b0a 2793 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2794 unsigned int duration,
2795 u64 *cookie)
2796{
71bbc994 2797 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2798 struct ieee80211_local *local = sdata->local;
2eb278e0 2799 int ret;
21f83589 2800
2eb278e0 2801 mutex_lock(&local->mtx);
42d97a59 2802 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2803 duration, cookie, NULL,
2804 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2805 mutex_unlock(&local->mtx);
b8bc4b0a 2806
2eb278e0 2807 return ret;
b8bc4b0a
JB		 2808}
2809
2eb278e0
JB		 2810static int ieee80211_cancel_roc(struct ieee80211_local *local,
2811 u64 cookie, bool mgmt_tx)
21f83589 2812{
2eb278e0 2813 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2814 int ret;
2815
2eb278e0
JB		 2816 mutex_lock(&local->mtx);
2817 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2818 struct ieee80211_roc_work *dep, *tmp2;
2819
2820 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2821 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2822 continue;
2823 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2824 continue;
2825 /* found dependent item -- just remove it */
2826 list_del(&dep->list);
2827 mutex_unlock(&local->mtx);
2828
3fbd45ca 2829 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2830 return 0;
2831 }
2832
50febf6a 2833 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2834 continue;
2835 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2836 continue;
21f83589 2837
2eb278e0
JB		 2838 found = roc;
2839 break;
2840 }
21f83589 2841
2eb278e0
JB		 2842 if (!found) {
2843 mutex_unlock(&local->mtx);
2844 return -ENOENT;
2845 }
21f83589 2846
e979e33c
JB		 2847 /*
2848 * We found the item to cancel, so do that. Note that it
2849 * may have dependents, which we also cancel (and send
2850 * the expired signal for.) Not doing so would be quite
2851 * tricky here, but we may need to fix it later.
2852 */
2853
2eb278e0
JB		 2854 if (local->ops->remain_on_channel) {
2855 if (found->started) {
2856 ret = drv_cancel_remain_on_channel(local);
2857 if (WARN_ON_ONCE(ret)) {
2858 mutex_unlock(&local->mtx);
2859 return ret;
2860 }
2861 }
21f83589 2862
2eb278e0 2863 list_del(&found->list);
21f83589 2864
0f6b3f59
JB		 2865 if (found->started)
2866 ieee80211_start_next_roc(local);
2eb278e0 2867 mutex_unlock(&local->mtx);
21f83589 2868
3fbd45ca 2869 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2870 } else {
2871 /* work may be pending so use it all the time */
2872 found->abort = true;
2873 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2874
21f83589
JB		 2875 mutex_unlock(&local->mtx);
2876
2eb278e0
JB		 2877 /* work will clean up etc */
2878 flush_delayed_work(&found->work);
3fbd45ca
JB		 2879 WARN_ON(!found->to_be_freed);
2880 kfree(found);
21f83589 2881 }
b8bc4b0a 2882
2eb278e0 2883 return 0;
b8bc4b0a
JB		 2884}
2885
2eb278e0 2886static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2887 struct wireless_dev *wdev,
2eb278e0 2888 u64 cookie)
f30221e4 2889{
71bbc994 2890 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2891 struct ieee80211_local *local = sdata->local;
f30221e4 2892
2eb278e0 2893 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2894}
2895
164eb02d
SW		 2896static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2897 struct net_device *dev,
2898 struct cfg80211_chan_def *chandef)
2899{
2900 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2901 struct ieee80211_local *local = sdata->local;
2902 unsigned long timeout;
2903 int err;
2904
2905 if (!list_empty(&local->roc_list) || local->scanning)
2906 return -EBUSY;
2907
2908 /* whatever, but channel contexts should not complain about that one */
2909 sdata->smps_mode = IEEE80211_SMPS_OFF;
2910 sdata->needed_rx_chains = local->rx_chains;
2911 sdata->radar_required = true;
2912
2913 mutex_lock(&local->iflist_mtx);
2914 err = ieee80211_vif_use_channel(sdata, chandef,
2915 IEEE80211_CHANCTX_SHARED);
2916 mutex_unlock(&local->iflist_mtx);
2917 if (err)
2918 return err;
2919
2920 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2921 ieee80211_queue_delayed_work(&sdata->local->hw,
2922 &sdata->dfs_cac_timer_work, timeout);
2923
2924 return 0;
2925}
2926
73da7d5b
SW		 2927static struct cfg80211_beacon_data *
2928cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2929{
2930 struct cfg80211_beacon_data *new_beacon;
2931 u8 *pos;
2932 int len;
2933
2934 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2935 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2936 beacon->probe_resp_len;
2937
2938 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2939 if (!new_beacon)
2940 return NULL;
2941
2942 pos = (u8 *)(new_beacon + 1);
2943 if (beacon->head_len) {
2944 new_beacon->head_len = beacon->head_len;
2945 new_beacon->head = pos;
2946 memcpy(pos, beacon->head, beacon->head_len);
2947 pos += beacon->head_len;
2948 }
2949 if (beacon->tail_len) {
2950 new_beacon->tail_len = beacon->tail_len;
2951 new_beacon->tail = pos;
2952 memcpy(pos, beacon->tail, beacon->tail_len);
2953 pos += beacon->tail_len;
2954 }
2955 if (beacon->beacon_ies_len) {
2956 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2957 new_beacon->beacon_ies = pos;
2958 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2959 pos += beacon->beacon_ies_len;
2960 }
2961 if (beacon->proberesp_ies_len) {
2962 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2963 new_beacon->proberesp_ies = pos;
2964 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2965 pos += beacon->proberesp_ies_len;
2966 }
2967 if (beacon->assocresp_ies_len) {
2968 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2969 new_beacon->assocresp_ies = pos;
2970 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2971 pos += beacon->assocresp_ies_len;
2972 }
2973 if (beacon->probe_resp_len) {
2974 new_beacon->probe_resp_len = beacon->probe_resp_len;
2975 beacon->probe_resp = pos;
2976 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2977 pos += beacon->probe_resp_len;
2978 }
2979
2980 return new_beacon;
2981}
2982
2983void ieee80211_csa_finalize_work(struct work_struct *work)
2984{
2985 struct ieee80211_sub_if_data *sdata =
2986 container_of(work, struct ieee80211_sub_if_data,
2987 csa_finalize_work);
2988 struct ieee80211_local *local = sdata->local;
0951ebb8 2989 int err, changed = 0;
73da7d5b
SW		 2990
2991 if (!ieee80211_sdata_running(sdata))
2992 return;
2993
73da7d5b 2994 sdata->radar_required = sdata->csa_radar_required;
33787fc4 2995 err = ieee80211_vif_change_channel(sdata, &changed);
73da7d5b
SW		 2996 if (WARN_ON(err < 0))
2997 return;
2998
7578d575 2999 if (!local->use_chanctx) {
33787fc4 3000 local->_oper_chandef = sdata->csa_chandef;
7578d575
AN		 3001 ieee80211_hw_config(local, 0);
3002 }
3003
cd7760e6 3004 ieee80211_bss_info_change_notify(sdata, changed);
73da7d5b 3005
cd7760e6
SW		 3006 switch (sdata->vif.type) {
3007 case NL80211_IFTYPE_AP:
3008 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3009 if (err < 0)
3010 return;
3011 changed |= err;
3012 kfree(sdata->u.ap.next_beacon);
3013 sdata->u.ap.next_beacon = NULL;
3014
3015 ieee80211_bss_info_change_notify(sdata, err);
3016 break;
3017 case NL80211_IFTYPE_ADHOC:
3018 ieee80211_ibss_finish_csa(sdata);
3019 break;
b8456a14
CYY		 3020#ifdef CONFIG_MAC80211_MESH
3021 case NL80211_IFTYPE_MESH_POINT:
3022 err = ieee80211_mesh_finish_csa(sdata);
3023 if (err < 0)
3024 return;
3025 break;
3026#endif
cd7760e6
SW		 3027 default:
3028 WARN_ON(1);
3029 return;
3030 }
73da7d5b
SW		 3031 sdata->vif.csa_active = false;
3032
3033 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3034 IEEE80211_MAX_QUEUE_MAP,
3035 IEEE80211_QUEUE_STOP_REASON_CSA);
3036
33787fc4 3037 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
73da7d5b
SW		 3038}
3039
3040static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3041 struct cfg80211_csa_settings *params)
3042{
3043 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3044 struct ieee80211_local *local = sdata->local;
3045 struct ieee80211_chanctx_conf *chanctx_conf;
3046 struct ieee80211_chanctx *chanctx;
c6da674a 3047 struct ieee80211_if_mesh __maybe_unused *ifmsh;
73da7d5b
SW		 3048 int err, num_chanctx;
3049
7ca133bc
SW		 3050 lockdep_assert_held(&sdata->wdev.mtx);
3051
73da7d5b
SW		 3052 if (!list_empty(&local->roc_list) || local->scanning)
3053 return -EBUSY;
3054
3055 if (sdata->wdev.cac_started)
3056 return -EBUSY;
3057
3058 if (cfg80211_chandef_identical(&params->chandef,
3059 &sdata->vif.bss_conf.chandef))
3060 return -EINVAL;
3061
3062 rcu_read_lock();
3063 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3064 if (!chanctx_conf) {
3065 rcu_read_unlock();
3066 return -EBUSY;
3067 }
3068
3069 /* don't handle for multi-VIF cases */
3070 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
3071 if (chanctx->refcount > 1) {
3072 rcu_read_unlock();
3073 return -EBUSY;
3074 }
3075 num_chanctx = 0;
3076 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3077 num_chanctx++;
3078 rcu_read_unlock();
3079
3080 if (num_chanctx > 1)
3081 return -EBUSY;
3082
3083 /* don't allow another channel switch if one is already active. */
3084 if (sdata->vif.csa_active)
3085 return -EBUSY;
3086
73da7d5b
SW		 3087 switch (sdata->vif.type) {
3088 case NL80211_IFTYPE_AP:
cd7760e6
SW		 3089 sdata->csa_counter_offset_beacon =
3090 params->counter_offset_beacon;
3091 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3092 sdata->u.ap.next_beacon =
3093 cfg80211_beacon_dup(&params->beacon_after);
3094 if (!sdata->u.ap.next_beacon)
3095 return -ENOMEM;
3096
3097 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3098 if (err < 0) {
3099 kfree(sdata->u.ap.next_beacon);
3100 return err;
3101 }
3102 break;
3103 case NL80211_IFTYPE_ADHOC:
3104 if (!sdata->vif.bss_conf.ibss_joined)
3105 return -EINVAL;
3106
3107 if (params->chandef.width != sdata->u.ibss.chandef.width)
3108 return -EINVAL;
3109
3110 switch (params->chandef.width) {
3111 case NL80211_CHAN_WIDTH_40:
3112 if (cfg80211_get_chandef_type(&params->chandef) !=
3113 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3114 return -EINVAL;
3115 case NL80211_CHAN_WIDTH_5:
3116 case NL80211_CHAN_WIDTH_10:
3117 case NL80211_CHAN_WIDTH_20_NOHT:
3118 case NL80211_CHAN_WIDTH_20:
3119 break;
3120 default:
3121 return -EINVAL;
3122 }
3123
3124 /* changes into another band are not supported */
3125 if (sdata->u.ibss.chandef.chan->band !=
3126 params->chandef.chan->band)
3127 return -EINVAL;
3128
3129 err = ieee80211_ibss_csa_beacon(sdata, params);
3130 if (err < 0)
3131 return err;
73da7d5b 3132 break;
c6da674a
CYY		 3133#ifdef CONFIG_MAC80211_MESH
3134 case NL80211_IFTYPE_MESH_POINT:
3135 ifmsh = &sdata->u.mesh;
3136
3137 if (!ifmsh->mesh_id)
3138 return -EINVAL;
3139
3140 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3141 return -EINVAL;
3142
3143 /* changes into another band are not supported */
3144 if (sdata->vif.bss_conf.chandef.chan->band !=
3145 params->chandef.chan->band)
3146 return -EINVAL;
3147
b8456a14 3148 err = ieee80211_mesh_csa_beacon(sdata, params, true);
c6da674a
CYY		 3149 if (err < 0)
3150 return err;
3151 break;
3152#endif
73da7d5b
SW		 3153 default:
3154 return -EOPNOTSUPP;
3155 }
3156
73da7d5b
SW		 3157 sdata->csa_radar_required = params->radar_required;
3158
3159 if (params->block_tx)
3160 ieee80211_stop_queues_by_reason(&local->hw,
3161 IEEE80211_MAX_QUEUE_MAP,
3162 IEEE80211_QUEUE_STOP_REASON_CSA);
3163
33787fc4 3164 sdata->csa_chandef = params->chandef;
73da7d5b
SW		 3165 sdata->vif.csa_active = true;
3166
3167 ieee80211_bss_info_change_notify(sdata, err);
3168 drv_channel_switch_beacon(sdata, &params->chandef);
3169
3170 return 0;
3171}
3172
71bbc994 3173static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3174 struct cfg80211_mgmt_tx_params *params,
3175 u64 *cookie)
026331c4 3176{
71bbc994 3177 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d
JB		 3178 struct ieee80211_local *local = sdata->local;
3179 struct sk_buff *skb;
3180 struct sta_info *sta;
b176e629 3181 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3182 bool need_offchan = false;
e247bd90 3183 u32 flags;
2eb278e0 3184 int ret;
f7ca38df 3185
b176e629 3186 if (params->dont_wait_for_ack)
e247bd90
JB		 3187 flags = IEEE80211_TX_CTL_NO_ACK;
3188 else
3189 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3190 IEEE80211_TX_CTL_REQ_TX_STATUS;
3191
b176e629 3192 if (params->no_cck)
aad14ceb
RM		 3193 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3194
9d38d85d
JB		 3195 switch (sdata->vif.type) {
3196 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3197 if (!sdata->vif.bss_conf.ibss_joined)
3198 need_offchan = true;
3199 /* fall through */
3200#ifdef CONFIG_MAC80211_MESH
3201 case NL80211_IFTYPE_MESH_POINT:
3202 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3203 !sdata->u.mesh.mesh_id_len)
3204 need_offchan = true;
3205 /* fall through */
3206#endif
663fcafd
JB		 3207 case NL80211_IFTYPE_AP:
3208 case NL80211_IFTYPE_AP_VLAN:
3209 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3210 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3211 !ieee80211_vif_is_mesh(&sdata->vif) &&
3212 !rcu_access_pointer(sdata->bss->beacon))
3213 need_offchan = true;
663fcafd 3214 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3215 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3216 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3217 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3218 break;
3219 rcu_read_lock();
3220 sta = sta_info_get(sdata, mgmt->da);
3221 rcu_read_unlock();
3222 if (!sta)
3223 return -ENOLINK;
3224 break;
3225 case NL80211_IFTYPE_STATION:
663fcafd 3226 case NL80211_IFTYPE_P2P_CLIENT:
2eb278e0
JB		 3227 if (!sdata->u.mgd.associated)
3228 need_offchan = true;
9d38d85d 3229 break;
f142c6b9
JB		 3230 case NL80211_IFTYPE_P2P_DEVICE:
3231 need_offchan = true;
3232 break;
9d38d85d
JB		 3233 default:
3234 return -EOPNOTSUPP;
3235 }
3236
f7aeb6fb
AQ		 3237 /* configurations requiring offchan cannot work if no channel has been
3238 * specified
3239 */
b176e629 3240 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3241 return -EINVAL;
3242
2eb278e0
JB		 3243 mutex_lock(&local->mtx);
3244
3245 /* Check if the operating channel is the requested channel */
3246 if (!need_offchan) {
55de908a
JB		 3247 struct ieee80211_chanctx_conf *chanctx_conf;
3248
3249 rcu_read_lock();
3250 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3251
f7aeb6fb 3252 if (chanctx_conf) {
b176e629
AO		 3253 need_offchan = params->chan &&
3254 (params->chan !=
3255 chanctx_conf->def.chan);
3256 } else if (!params->chan) {
f7aeb6fb
AQ		 3257 ret = -EINVAL;
3258 rcu_read_unlock();
3259 goto out_unlock;
3260 } else {
2eb278e0 3261 need_offchan = true;
f7aeb6fb 3262 }
55de908a 3263 rcu_read_unlock();
2eb278e0
JB		 3264 }
3265
b176e629 3266 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3267 ret = -EBUSY;
3268 goto out_unlock;
3269 }
3270
b176e629 3271 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3272 if (!skb) {
3273 ret = -ENOMEM;
3274 goto out_unlock;
3275 }
9d38d85d
JB		 3276 skb_reserve(skb, local->hw.extra_tx_headroom);
3277
b176e629 3278 memcpy(skb_put(skb, params->len), params->buf, params->len);
9d38d85d
JB		 3279
3280 IEEE80211_SKB_CB(skb)->flags = flags;
3281
3282 skb->dev = sdata->dev;
9d38d85d 3283
2eb278e0 3284 if (!need_offchan) {
7f9f78ab 3285 *cookie = (unsigned long) skb;
f30221e4 3286 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3287 ret = 0;
3288 goto out_unlock;
f30221e4
JB		 3289 }
3290
6c17b77b
SF		 3291 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3292 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2eb278e0
JB		 3293 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3294 IEEE80211_SKB_CB(skb)->hw_queue =
3295 local->hw.offchannel_tx_hw_queue;
f30221e4 3296
2eb278e0 3297 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3298 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3299 params->wait, cookie, skb,
d339d5ca 3300 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3301 if (ret)
3302 kfree_skb(skb);
3303 out_unlock:
3304 mutex_unlock(&local->mtx);
3305 return ret;
026331c4
JM		 3306}
3307
f30221e4 3308static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3309 struct wireless_dev *wdev,
f30221e4
JB		 3310 u64 cookie)
3311{
71bbc994 3312 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3313
2eb278e0 3314 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3315}
3316
7be5086d 3317static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3318 struct wireless_dev *wdev,
7be5086d
JB		 3319 u16 frame_type, bool reg)
3320{
3321 struct ieee80211_local *local = wiphy_priv(wiphy);
3322
6abe0563 3323 switch (frame_type) {
6abe0563
WH		 3324 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3325 if (reg)
3326 local->probe_req_reg++;
3327 else
3328 local->probe_req_reg--;
7be5086d 3329
35f5149e
FF		 3330 if (!local->open_count)
3331 break;
3332
6abe0563
WH		 3333 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3334 break;
3335 default:
3336 break;
3337 }
7be5086d
JB		 3338}
3339
15d96753
BR		 3340static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3341{
3342 struct ieee80211_local *local = wiphy_priv(wiphy);
3343
3344 if (local->started)
3345 return -EOPNOTSUPP;
3346
3347 return drv_set_antenna(local, tx_ant, rx_ant);
3348}
3349
3350static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3351{
3352 struct ieee80211_local *local = wiphy_priv(wiphy);
3353
3354 return drv_get_antenna(local, tx_ant, rx_ant);
3355}
3356
38c09159
JL		 3357static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3358{
3359 struct ieee80211_local *local = wiphy_priv(wiphy);
3360
3361 return drv_set_ringparam(local, tx, rx);
3362}
3363
3364static void ieee80211_get_ringparam(struct wiphy *wiphy,
3365 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3366{
3367 struct ieee80211_local *local = wiphy_priv(wiphy);
3368
3369 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3370}
3371
c68f4b89
JB		 3372static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3373 struct net_device *dev,
3374 struct cfg80211_gtk_rekey_data *data)
3375{
3376 struct ieee80211_local *local = wiphy_priv(wiphy);
3377 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3378
3379 if (!local->ops->set_rekey_data)
3380 return -EOPNOTSUPP;
3381
3382 drv_set_rekey_data(local, sdata, data);
3383
3384 return 0;
3385}
3386
dfe018bf
AN		 3387static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3388{
3389 u8 *pos = (void *)skb_put(skb, 7);
3390
3391 *pos++ = WLAN_EID_EXT_CAPABILITY;
3392 *pos++ = 5; /* len */
3393 *pos++ = 0x0;
3394 *pos++ = 0x0;
3395 *pos++ = 0x0;
3396 *pos++ = 0x0;
3397 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3398}
3399
3400static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3401{
3402 struct ieee80211_local *local = sdata->local;
3403 u16 capab;
3404
3405 capab = 0;
55de908a 3406 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
dfe018bf
AN		 3407 return capab;
3408
3409 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3410 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3411 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3412 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3413
3414 return capab;
3415}
3416
3417static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3418 u8 *peer, u8 *bssid)
3419{
3420 struct ieee80211_tdls_lnkie *lnkid;
3421
3422 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3423
3424 lnkid->ie_type = WLAN_EID_LINK_ID;
3425 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3426
3427 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3428 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3429 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3430}
3431
3432static int
3433ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3434 u8 *peer, u8 action_code, u8 dialog_token,
3435 u16 status_code, struct sk_buff *skb)
3436{
3437 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3438 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3439 struct ieee80211_tdls_data *tf;
3440
3441 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3442
3443 memcpy(tf->da, peer, ETH_ALEN);
3444 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3445 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3446 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3447
3448 switch (action_code) {
3449 case WLAN_TDLS_SETUP_REQUEST:
3450 tf->category = WLAN_CATEGORY_TDLS;
3451 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3452
3453 skb_put(skb, sizeof(tf->u.setup_req));
3454 tf->u.setup_req.dialog_token = dialog_token;
3455 tf->u.setup_req.capability =
3456 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3457
55de908a
JB		 3458 ieee80211_add_srates_ie(sdata, skb, false, band);
3459 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3460 ieee80211_tdls_add_ext_capab(skb);
3461 break;
3462 case WLAN_TDLS_SETUP_RESPONSE:
3463 tf->category = WLAN_CATEGORY_TDLS;
3464 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3465
3466 skb_put(skb, sizeof(tf->u.setup_resp));
3467 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3468 tf->u.setup_resp.dialog_token = dialog_token;
3469 tf->u.setup_resp.capability =
3470 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3471
55de908a
JB		 3472 ieee80211_add_srates_ie(sdata, skb, false, band);
3473 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3474 ieee80211_tdls_add_ext_capab(skb);
3475 break;
3476 case WLAN_TDLS_SETUP_CONFIRM:
3477 tf->category = WLAN_CATEGORY_TDLS;
3478 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3479
3480 skb_put(skb, sizeof(tf->u.setup_cfm));
3481 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3482 tf->u.setup_cfm.dialog_token = dialog_token;
3483 break;
3484 case WLAN_TDLS_TEARDOWN:
3485 tf->category = WLAN_CATEGORY_TDLS;
3486 tf->action_code = WLAN_TDLS_TEARDOWN;
3487
3488 skb_put(skb, sizeof(tf->u.teardown));
3489 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3490 break;
3491 case WLAN_TDLS_DISCOVERY_REQUEST:
3492 tf->category = WLAN_CATEGORY_TDLS;
3493 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3494
3495 skb_put(skb, sizeof(tf->u.discover_req));
3496 tf->u.discover_req.dialog_token = dialog_token;
3497 break;
3498 default:
3499 return -EINVAL;
3500 }
3501
3502 return 0;
3503}
3504
3505static int
3506ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3507 u8 *peer, u8 action_code, u8 dialog_token,
3508 u16 status_code, struct sk_buff *skb)
3509{
3510 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3511 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3512 struct ieee80211_mgmt *mgmt;
3513
3514 mgmt = (void *)skb_put(skb, 24);
3515 memset(mgmt, 0, 24);
3516 memcpy(mgmt->da, peer, ETH_ALEN);
3517 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3518 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3519
3520 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3521 IEEE80211_STYPE_ACTION);
3522
3523 switch (action_code) {
3524 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3525 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3526 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3527 mgmt->u.action.u.tdls_discover_resp.action_code =
3528 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3529 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3530 dialog_token;
3531 mgmt->u.action.u.tdls_discover_resp.capability =
3532 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3533
55de908a
JB		 3534 ieee80211_add_srates_ie(sdata, skb, false, band);
3535 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3536 ieee80211_tdls_add_ext_capab(skb);
3537 break;
3538 default:
3539 return -EINVAL;
3540 }
3541
3542 return 0;
3543}
3544
3545static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3546 u8 *peer, u8 action_code, u8 dialog_token,
3547 u16 status_code, const u8 *extra_ies,
3548 size_t extra_ies_len)
3549{
3550 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3551 struct ieee80211_local *local = sdata->local;
dfe018bf
AN		 3552 struct sk_buff *skb = NULL;
3553 bool send_direct;
3554 int ret;
3555
3556 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3557 return -ENOTSUPP;
3558
3559 /* make sure we are in managed mode, and associated */
3560 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3561 !sdata->u.mgd.associated)
3562 return -EINVAL;
3563
bdcbd8e0
JB		 3564 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3565 action_code, peer);
dfe018bf
AN		 3566
3567 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3568 max(sizeof(struct ieee80211_mgmt),
3569 sizeof(struct ieee80211_tdls_data)) +
3570 50 + /* supported rates */
3571 7 + /* ext capab */
3572 extra_ies_len +
3573 sizeof(struct ieee80211_tdls_lnkie));
3574 if (!skb)
3575 return -ENOMEM;
3576
dfe018bf
AN		 3577 skb_reserve(skb, local->hw.extra_tx_headroom);
3578
3579 switch (action_code) {
3580 case WLAN_TDLS_SETUP_REQUEST:
3581 case WLAN_TDLS_SETUP_RESPONSE:
3582 case WLAN_TDLS_SETUP_CONFIRM:
3583 case WLAN_TDLS_TEARDOWN:
3584 case WLAN_TDLS_DISCOVERY_REQUEST:
3585 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3586 action_code, dialog_token,
3587 status_code, skb);
3588 send_direct = false;
3589 break;
3590 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3591 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3592 dialog_token, status_code,
3593 skb);
3594 send_direct = true;
3595 break;
3596 default:
3597 ret = -ENOTSUPP;
3598 break;
3599 }
3600
3601 if (ret < 0)
3602 goto fail;
3603
3604 if (extra_ies_len)
3605 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3606
3607 /* the TDLS link IE is always added last */
3608 switch (action_code) {
3609 case WLAN_TDLS_SETUP_REQUEST:
3610 case WLAN_TDLS_SETUP_CONFIRM:
3611 case WLAN_TDLS_TEARDOWN:
3612 case WLAN_TDLS_DISCOVERY_REQUEST:
3613 /* we are the initiator */
3614 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3615 sdata->u.mgd.bssid);
3616 break;
3617 case WLAN_TDLS_SETUP_RESPONSE:
3618 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3619 /* we are the responder */
3620 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3621 sdata->u.mgd.bssid);
3622 break;
3623 default:
3624 ret = -ENOTSUPP;
3625 goto fail;
3626 }
3627
3628 if (send_direct) {
3629 ieee80211_tx_skb(sdata, skb);
3630 return 0;
3631 }
3632
3633 /*
3634 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3635 * we should default to AC_VI.
3636 */
3637 switch (action_code) {
3638 case WLAN_TDLS_SETUP_REQUEST:
3639 case WLAN_TDLS_SETUP_RESPONSE:
3640 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3641 skb->priority = 2;
3642 break;
3643 default:
3644 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3645 skb->priority = 5;
3646 break;
3647 }
3648
3649 /* disable bottom halves when entering the Tx path */
3650 local_bh_disable();
3651 ret = ieee80211_subif_start_xmit(skb, dev);
3652 local_bh_enable();
3653
3654 return ret;
3655
3656fail:
3657 dev_kfree_skb(skb);
3658 return ret;
3659}
3660
3661static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3662 u8 *peer, enum nl80211_tdls_operation oper)
3663{
941c93cd 3664 struct sta_info *sta;
dfe018bf
AN		 3665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3666
3667 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3668 return -ENOTSUPP;
3669
3670 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3671 return -EINVAL;
3672
bdcbd8e0 3673 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
dfe018bf
AN		 3674
3675 switch (oper) {
3676 case NL80211_TDLS_ENABLE_LINK:
941c93cd
AN		 3677 rcu_read_lock();
3678 sta = sta_info_get(sdata, peer);
3679 if (!sta) {
3680 rcu_read_unlock();
3681 return -ENOLINK;
3682 }
3683
c2c98fde 3684 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
941c93cd 3685 rcu_read_unlock();
dfe018bf
AN		 3686 break;
3687 case NL80211_TDLS_DISABLE_LINK:
3688 return sta_info_destroy_addr(sdata, peer);
3689 case NL80211_TDLS_TEARDOWN:
3690 case NL80211_TDLS_SETUP:
3691 case NL80211_TDLS_DISCOVERY_REQ:
3692 /* We don't support in-driver setup/teardown/discovery */
3693 return -ENOTSUPP;
3694 default:
3695 return -ENOTSUPP;
3696 }
3697
3698 return 0;
3699}
3700
06500736
JB		 3701static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3702 const u8 *peer, u64 *cookie)
3703{
3704 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3705 struct ieee80211_local *local = sdata->local;
3706 struct ieee80211_qos_hdr *nullfunc;
3707 struct sk_buff *skb;
3708 int size = sizeof(*nullfunc);
3709 __le16 fc;
3710 bool qos;
3711 struct ieee80211_tx_info *info;
3712 struct sta_info *sta;
55de908a
JB		 3713 struct ieee80211_chanctx_conf *chanctx_conf;
3714 enum ieee80211_band band;
06500736
JB		 3715
3716 rcu_read_lock();
55de908a
JB		 3717 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3718 if (WARN_ON(!chanctx_conf)) {
3719 rcu_read_unlock();
3720 return -EINVAL;
3721 }
4bf88530 3722 band = chanctx_conf->def.chan->band;
03bb7f42 3723 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3724 if (sta) {
06500736 3725 qos = test_sta_flag(sta, WLAN_STA_WME);
b4487c2d
JB		 3726 } else {
3727 rcu_read_unlock();
06500736 3728 return -ENOLINK;
b4487c2d 3729 }
06500736
JB		 3730
3731 if (qos) {
3732 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3733 IEEE80211_STYPE_QOS_NULLFUNC |
3734 IEEE80211_FCTL_FROMDS);
3735 } else {
3736 size -= 2;
3737 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3738 IEEE80211_STYPE_NULLFUNC |
3739 IEEE80211_FCTL_FROMDS);
3740 }
3741
3742 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a
JB		 3743 if (!skb) {
3744 rcu_read_unlock();
06500736 3745 return -ENOMEM;
55de908a 3746 }
06500736
JB		 3747
3748 skb->dev = dev;
3749
3750 skb_reserve(skb, local->hw.extra_tx_headroom);
3751
3752 nullfunc = (void *) skb_put(skb, size);
3753 nullfunc->frame_control = fc;
3754 nullfunc->duration_id = 0;
3755 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3756 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3757 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3758 nullfunc->seq_ctrl = 0;
3759
3760 info = IEEE80211_SKB_CB(skb);
3761
3762 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3763 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3764
3765 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3766 skb->priority = 7;
3767 if (qos)
3768 nullfunc->qos_ctrl = cpu_to_le16(7);
3769
3770 local_bh_disable();
55de908a 3771 ieee80211_xmit(sdata, skb, band);
06500736 3772 local_bh_enable();
55de908a 3773 rcu_read_unlock();
06500736
JB		 3774
3775 *cookie = (unsigned long) skb;
3776 return 0;
3777}
3778
683b6d3b
JB		 3779static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3780 struct wireless_dev *wdev,
3781 struct cfg80211_chan_def *chandef)
5b7ccaf3 3782{
55de908a 3783 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3784 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3785 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3786 int ret = -ENODATA;
55de908a
JB		 3787
3788 rcu_read_lock();
feda3027
JB		 3789 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3790 if (chanctx_conf) {
3791 *chandef = chanctx_conf->def;
3792 ret = 0;
3793 } else if (local->open_count > 0 &&
3794 local->open_count == local->monitors &&
3795 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3796 if (local->use_chanctx)
3797 *chandef = local->monitor_chandef;
3798 else
675a0b04 3799 *chandef = local->_oper_chandef;
683b6d3b 3800 ret = 0;
55de908a
JB		 3801 }
3802 rcu_read_unlock();
5b7ccaf3 3803
683b6d3b 3804 return ret;
5b7ccaf3
JB		 3805}
3806
6d52563f
JB		 3807#ifdef CONFIG_PM
3808static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3809{
3810 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3811}
3812#endif
3813
f0706e82
JB		 3814struct cfg80211_ops mac80211_config_ops = {
3815 .add_virtual_intf = ieee80211_add_iface,
3816 .del_virtual_intf = ieee80211_del_iface,
42613db7 3817 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3818 .start_p2p_device = ieee80211_start_p2p_device,
3819 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3820 .add_key = ieee80211_add_key,
3821 .del_key = ieee80211_del_key,
62da92fb 3822 .get_key = ieee80211_get_key,
e8cbb4cb 3823 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3824 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3825 .start_ap = ieee80211_start_ap,
3826 .change_beacon = ieee80211_change_beacon,
3827 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3828 .add_station = ieee80211_add_station,
3829 .del_station = ieee80211_del_station,
3830 .change_station = ieee80211_change_station,
7bbdd2d9 3831 .get_station = ieee80211_get_station,
c5dd9c2b 3832 .dump_station = ieee80211_dump_station,
1289723e 3833 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3834#ifdef CONFIG_MAC80211_MESH
3835 .add_mpath = ieee80211_add_mpath,
3836 .del_mpath = ieee80211_del_mpath,
3837 .change_mpath = ieee80211_change_mpath,
3838 .get_mpath = ieee80211_get_mpath,
3839 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 3840 .update_mesh_config = ieee80211_update_mesh_config,
3841 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3842 .join_mesh = ieee80211_join_mesh,
3843 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3844#endif
9f1ba906 3845 .change_bss = ieee80211_change_bss,
31888487 3846 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3847 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3848 .suspend = ieee80211_suspend,
3849 .resume = ieee80211_resume,
2a519311 3850 .scan = ieee80211_scan,
79f460ca
LC		 3851 .sched_scan_start = ieee80211_sched_scan_start,
3852 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3853 .auth = ieee80211_auth,
3854 .assoc = ieee80211_assoc,
3855 .deauth = ieee80211_deauth,
3856 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3857 .join_ibss = ieee80211_join_ibss,
3858 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3859 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3860 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3861 .set_tx_power = ieee80211_set_tx_power,
3862 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3863 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3864 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3865 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3866 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3867 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3868 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3869 .remain_on_channel = ieee80211_remain_on_channel,
3870 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3871 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3872 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3873 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3874 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3875 .set_antenna = ieee80211_set_antenna,
3876 .get_antenna = ieee80211_get_antenna,
38c09159
JL		 3877 .set_ringparam = ieee80211_set_ringparam,
3878 .get_ringparam = ieee80211_get_ringparam,
c68f4b89 3879 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3880 .tdls_oper = ieee80211_tdls_oper,
3881 .tdls_mgmt = ieee80211_tdls_mgmt,
06500736 3882 .probe_client = ieee80211_probe_client,
b53be792 3883 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3884#ifdef CONFIG_PM
3885 .set_wakeup = ieee80211_set_wakeup,
3886#endif
b1ab7925
BG		 3887 .get_et_sset_count = ieee80211_get_et_sset_count,
3888 .get_et_stats = ieee80211_get_et_stats,
3889 .get_et_strings = ieee80211_get_et_strings,
5b7ccaf3 3890 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3891 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3892 .channel_switch = ieee80211_channel_switch,
f0706e82 3893};
Linux 6.x block layer and io_uring tree(s)