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mac80211: lock sdata in ieee80211_csa_connection_drop_work()
[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
f0706e82
JB		 5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
e8cbb4cb 9#include <linux/ieee80211.h>
f0706e82
JB		 10#include <linux/nl80211.h>
11#include <linux/rtnetlink.h>
5a0e3ad6 12#include <linux/slab.h>
881d966b 13#include <net/net_namespace.h>
5dfdaf58 14#include <linux/rcupdate.h>
dfe018bf 15#include <linux/if_ether.h>
f0706e82
JB		 16#include <net/cfg80211.h>
17#include "ieee80211_i.h"
24487981 18#include "driver-ops.h"
e0eb6859 19#include "cfg.h"
2c8dccc7 20#include "rate.h"
c5dd9c2b 21#include "mesh.h"
c5dd9c2b 22
552bff0c
JB		 23static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
84efbb84
JB		 25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
f0706e82
JB		 28{
29 struct ieee80211_local *local = wiphy_priv(wiphy);
84efbb84 30 struct wireless_dev *wdev;
8cc9a739
MW		 31 struct ieee80211_sub_if_data *sdata;
32 int err;
f0706e82 33
84efbb84 34 err = ieee80211_if_add(local, name, &wdev, type, params);
f9e10ce4
JB		 35 if (err)
36 return ERR_PTR(err);
8cc9a739 37
f9e10ce4 38 if (type == NL80211_IFTYPE_MONITOR && flags) {
84efbb84 39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
f9e10ce4
JB		 40 sdata->u.mntr_flags = *flags;
41 }
42
84efbb84 43 return wdev;
f0706e82
JB		 44}
45
84efbb84 46static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
f0706e82 47{
84efbb84 48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
f0706e82 49
75636525 50 return 0;
f0706e82
JB		 51}
52
e36d56b6
JB		 53static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
2ec600d6
LCC		 55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
42613db7 57{
9607e6b6 58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 59 int ret;
42613db7 60
05c914fe 61 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 62 if (ret)
63 return ret;
42613db7 64
9bc383de
JB		 65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
a9b3cd7f 67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
9bc383de
JB		 68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
85416a4f
CL		 72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
74
75 if (ieee80211_sdata_running(sdata)) {
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;
1f3b8a2b
SW		 1083 kfree(sdata->u.ap.next_beacon);
1084 sdata->u.ap.next_beacon = NULL;
1085
687da132 1086 cancel_work_sync(&sdata->u.ap.request_smps_work);
73da7d5b 1087
7b20b8e8 1088 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 1089 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1090 netif_carrier_off(vlan->dev);
1091 netif_carrier_off(dev);
1092
7b20b8e8 1093 /* remove beacon and probe response */
a9b3cd7f 1094 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 1095 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1096 kfree_rcu(old_beacon, rcu_head);
1097 if (old_probe_resp)
1098 kfree_rcu(old_probe_resp, rcu_head);
8860020e 1099
e716251d 1100 __sta_info_flush(sdata, true);
7907c7d3 1101 ieee80211_free_keys(sdata, true);
75de9113 1102
d6a83228 1103 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 1104 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 1105 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 1106 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 1107
a6b368f6 1108 if (sdata->wdev.cac_started) {
d2859df5 1109 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 1110 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 1111 cfg80211_cac_event(sdata->dev, &chandef,
1112 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 1113 GFP_KERNEL);
1114 }
1115
1041638f
JB		 1116 drv_stop_ap(sdata->local, sdata);
1117
7b20b8e8
JB		 1118 /* free all potentially still buffered bcast frames */
1119 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1120 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1121
1f4ac5a6 1122 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a
JB		 1123 ieee80211_vif_release_channel(sdata);
1124
2d0ddec5 1125 return 0;
5dfdaf58
JB		 1126}
1127
4fd6931e
JB		 1128/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1129struct iapp_layer2_update {
1130 u8 da[ETH_ALEN]; /* broadcast */
1131 u8 sa[ETH_ALEN]; /* STA addr */
1132 __be16 len; /* 6 */
1133 u8 dsap; /* 0 */
1134 u8 ssap; /* 0 */
1135 u8 control;
1136 u8 xid_info[3];
bc10502d 1137} __packed;
4fd6931e
JB		 1138
1139static void ieee80211_send_layer2_update(struct sta_info *sta)
1140{
1141 struct iapp_layer2_update *msg;
1142 struct sk_buff *skb;
1143
1144 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1145 * bridge devices */
1146
1147 skb = dev_alloc_skb(sizeof(*msg));
1148 if (!skb)
1149 return;
1150 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1151
1152 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1153 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1154
e83e6541 1155 eth_broadcast_addr(msg->da);
17741cdc 1156 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 1157 msg->len = htons(6);
1158 msg->dsap = 0;
1159 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1160 msg->control = 0xaf; /* XID response lsb.1111F101.
1161 * F=0 (no poll command; unsolicited frame) */
1162 msg->xid_info[0] = 0x81; /* XID format identifier */
1163 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1164 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1165
d0709a65
JB		 1166 skb->dev = sta->sdata->dev;
1167 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 1168 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 1169 netif_rx_ni(skb);
4fd6931e
JB		 1170}
1171
d582cffb
JB		 1172static int sta_apply_auth_flags(struct ieee80211_local *local,
1173 struct sta_info *sta,
1174 u32 mask, u32 set)
1175{
1176 int ret;
1177
1178 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1179 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1180 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1181 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1182 if (ret)
1183 return ret;
1184 }
1185
1186 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1187 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1188 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1189 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1190 if (ret)
1191 return ret;
1192 }
1193
1194 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1195 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1196 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1197 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1198 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1199 else
1200 ret = 0;
1201 if (ret)
1202 return ret;
1203 }
1204
1205 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1206 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1207 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1208 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1209 if (ret)
1210 return ret;
1211 }
1212
1213 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1214 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1215 test_sta_flag(sta, WLAN_STA_AUTH)) {
1216 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1217 if (ret)
1218 return ret;
1219 }
1220
1221 return 0;
1222}
1223
d9a7ddb0
JB		 1224static int sta_apply_parameters(struct ieee80211_local *local,
1225 struct sta_info *sta,
1226 struct station_parameters *params)
4fd6931e 1227{
d9a7ddb0 1228 int ret = 0;
8318d78a 1229 struct ieee80211_supported_band *sband;
d0709a65 1230 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 1231 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1232 u32 mask, set;
4fd6931e 1233
55de908a 1234 sband = local->hw.wiphy->bands[band];
ae5eb026 1235
eccb8e8f
JB		 1236 mask = params->sta_flags_mask;
1237 set = params->sta_flags_set;
73651ee6 1238
d582cffb
JB		 1239 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1240 /*
1241 * In mesh mode, ASSOCIATED isn't part of the nl80211
1242 * API but must follow AUTHENTICATED for driver state.
1243 */
1244 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1245 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1246 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1247 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1248 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1249 /*
1250 * TDLS -- everything follows authorized, but
1251 * only becoming authorized is possible, not
1252 * going back
1253 */
1254 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1255 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1256 BIT(NL80211_STA_FLAG_ASSOCIATED);
1257 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1258 BIT(NL80211_STA_FLAG_ASSOCIATED);
1259 }
eccb8e8f 1260 }
4fd6931e 1261
d582cffb
JB		 1262 ret = sta_apply_auth_flags(local, sta, mask, set);
1263 if (ret)
1264 return ret;
d9a7ddb0 1265
eccb8e8f 1266 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1267 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1268 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1269 else
1270 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1271 }
4fd6931e 1272
eccb8e8f 1273 if (mask & BIT(NL80211_STA_FLAG_WME)) {
39df600a 1274 if (set & BIT(NL80211_STA_FLAG_WME)) {
c2c98fde 1275 set_sta_flag(sta, WLAN_STA_WME);
39df600a 1276 sta->sta.wme = true;
c2c98fde
JB		 1277 } else {
1278 clear_sta_flag(sta, WLAN_STA_WME);
1279 sta->sta.wme = false;
39df600a 1280 }
eccb8e8f 1281 }
5394af4d 1282
eccb8e8f 1283 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1284 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1285 set_sta_flag(sta, WLAN_STA_MFP);
1286 else
1287 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1288 }
b39c48fa 1289
07ba55d7 1290 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1291 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1292 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1293 else
1294 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1295 }
4fd6931e 1296
3b9ce80c
JB		 1297 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1298 sta->sta.uapsd_queues = params->uapsd_queues;
1299 sta->sta.max_sp = params->max_sp;
1300 }
9533b4ac 1301
51b50fbe
JB		 1302 /*
1303 * cfg80211 validates this (1-2007) and allows setting the AID
1304 * only when creating a new station entry
1305 */
1306 if (params->aid)
1307 sta->sta.aid = params->aid;
1308
73651ee6 1309 /*
ba23d206
JB		 1310 * Some of the following updates would be racy if called on an
1311 * existing station, via ieee80211_change_station(). However,
1312 * all such changes are rejected by cfg80211 except for updates
1313 * changing the supported rates on an existing but not yet used
1314 * TDLS peer.
73651ee6
JB		 1315 */
1316
4fd6931e
JB		 1317 if (params->listen_interval >= 0)
1318 sta->listen_interval = params->listen_interval;
1319
1320 if (params->supported_rates) {
2103dec1
SW		 1321 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1322 sband, params->supported_rates,
1323 params->supported_rates_len,
1324 &sta->sta.supp_rates[band]);
4fd6931e 1325 }
c5dd9c2b 1326
d9fe60de 1327 if (params->ht_capa)
ef96a842 1328 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1329 params->ht_capa, sta);
36aedc90 1330
f461be3e
MP		 1331 if (params->vht_capa)
1332 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1333 params->vht_capa, sta);
f461be3e 1334
9c3990aa 1335 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1336#ifdef CONFIG_MAC80211_MESH
39886b61 1337 u32 changed = 0;
77ee7c89
JB		 1338
1339 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1340 switch (params->plink_state) {
57cf8043 1341 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1342 if (sta->plink_state != NL80211_PLINK_ESTAB)
1343 changed = mesh_plink_inc_estab_count(
1344 sdata);
1345 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1346
1347 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1348 changed |= ieee80211_mps_set_sta_local_pm(sta,
1349 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1350 break;
1351 case NL80211_PLINK_LISTEN:
57cf8043 1352 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1353 case NL80211_PLINK_OPN_SNT:
1354 case NL80211_PLINK_OPN_RCVD:
1355 case NL80211_PLINK_CNF_RCVD:
1356 case NL80211_PLINK_HOLDING:
1357 if (sta->plink_state == NL80211_PLINK_ESTAB)
1358 changed = mesh_plink_dec_estab_count(
1359 sdata);
9c3990aa 1360 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1361
1362 ieee80211_mps_sta_status_update(sta);
446075d7
MP		 1363 changed |= ieee80211_mps_set_sta_local_pm(sta,
1364 NL80211_MESH_POWER_UNKNOWN);
9c3990aa
JC		 1365 break;
1366 default:
1367 /* nothing */
1368 break;
1369 }
77ee7c89
JB		 1370 }
1371
1372 switch (params->plink_action) {
1373 case NL80211_PLINK_ACTION_NO_ACTION:
1374 /* nothing */
1375 break;
1376 case NL80211_PLINK_ACTION_OPEN:
1377 changed |= mesh_plink_open(sta);
1378 break;
1379 case NL80211_PLINK_ACTION_BLOCK:
1380 changed |= mesh_plink_block(sta);
1381 break;
1617bab8 1382 }
3f52b7e3
MP		 1383
1384 if (params->local_pm)
39886b61
TP		 1385 changed |=
1386 ieee80211_mps_set_sta_local_pm(sta,
1387 params->local_pm);
6c751ef8 1388 ieee80211_mbss_info_change_notify(sdata, changed);
4daf50f2 1389#endif
902acc78 1390 }
d9a7ddb0
JB		 1391
1392 return 0;
4fd6931e
JB		 1393}
1394
1395static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1396 u8 *mac, struct station_parameters *params)
1397{
14db74bc 1398 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1399 struct sta_info *sta;
1400 struct ieee80211_sub_if_data *sdata;
73651ee6 1401 int err;
b8d476c8 1402 int layer2_update;
4fd6931e 1403
4fd6931e
JB		 1404 if (params->vlan) {
1405 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1406
05c914fe
JB		 1407 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1408 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1409 return -EINVAL;
1410 } else
1411 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1412
b203ca39 1413 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1414 return -EINVAL;
1415
1416 if (is_multicast_ether_addr(mac))
1417 return -EINVAL;
1418
1419 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1420 if (!sta)
1421 return -ENOMEM;
4fd6931e 1422
d582cffb
JB		 1423 /*
1424 * defaults -- if userspace wants something else we'll
1425 * change it accordingly in sta_apply_parameters()
1426 */
77ee7c89
JB		 1427 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1428 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1429 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1430 }
4fd6931e 1431
d9a7ddb0
JB		 1432 err = sta_apply_parameters(local, sta, params);
1433 if (err) {
1434 sta_info_free(local, sta);
1435 return err;
1436 }
4fd6931e 1437
d64cf63e 1438 /*
77ee7c89
JB		 1439 * for TDLS, rate control should be initialized only when
1440 * rates are known and station is marked authorized
d64cf63e
AN		 1441 */
1442 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1443 rate_control_rate_init(sta);
4fd6931e 1444
b8d476c8
JM		 1445 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1446 sdata->vif.type == NL80211_IFTYPE_AP;
1447
34e89507 1448 err = sta_info_insert_rcu(sta);
73651ee6 1449 if (err) {
73651ee6
JB		 1450 rcu_read_unlock();
1451 return err;
1452 }
1453
b8d476c8 1454 if (layer2_update)
73651ee6
JB		 1455 ieee80211_send_layer2_update(sta);
1456
1457 rcu_read_unlock();
1458
4fd6931e
JB		 1459 return 0;
1460}
1461
1462static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1463 u8 *mac)
1464{
14db74bc 1465 struct ieee80211_sub_if_data *sdata;
4fd6931e 1466
14db74bc
JB		 1467 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1468
34e89507
JB		 1469 if (mac)
1470 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 1471
b998e8bb 1472 sta_info_flush(sdata);
4fd6931e
JB		 1473 return 0;
1474}
1475
1476static int ieee80211_change_station(struct wiphy *wiphy,
77ee7c89 1477 struct net_device *dev, u8 *mac,
4fd6931e
JB		 1478 struct station_parameters *params)
1479{
abe60632 1480 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1481 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1482 struct sta_info *sta;
1483 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1484 enum cfg80211_station_type statype;
35b88623 1485 int err;
4fd6931e 1486
87be1e1e 1487 mutex_lock(&local->sta_mtx);
98dd6a57 1488
0e5ded5a 1489 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1490 if (!sta) {
77ee7c89
JB		 1491 err = -ENOENT;
1492 goto out_err;
98dd6a57 1493 }
4fd6931e 1494
77ee7c89
JB		 1495 switch (sdata->vif.type) {
1496 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1497 if (sdata->u.mesh.user_mpm)
eef941e6 1498 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1499 else
eef941e6 1500 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1501 break;
1502 case NL80211_IFTYPE_ADHOC:
1503 statype = CFG80211_STA_IBSS;
1504 break;
1505 case NL80211_IFTYPE_STATION:
1506 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1507 statype = CFG80211_STA_AP_STA;
1508 break;
1509 }
1510 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1511 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1512 else
1513 statype = CFG80211_STA_TDLS_PEER_SETUP;
1514 break;
1515 case NL80211_IFTYPE_AP:
1516 case NL80211_IFTYPE_AP_VLAN:
1517 statype = CFG80211_STA_AP_CLIENT;
1518 break;
1519 default:
1520 err = -EOPNOTSUPP;
1521 goto out_err;
bdd90d5e
JB		 1522 }
1523
77ee7c89
JB		 1524 err = cfg80211_check_station_change(wiphy, params, statype);
1525 if (err)
1526 goto out_err;
1527
d0709a65 1528 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1529 bool prev_4addr = false;
1530 bool new_4addr = false;
1531
4fd6931e
JB		 1532 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1533
9bc383de 1534 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1535 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1536 err = -EBUSY;
1537 goto out_err;
3305443c 1538 }
f14543ee 1539
cf778b00 1540 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1541 new_4addr = true;
1542 }
1543
1544 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1545 sta->sdata->u.vlan.sta) {
1546 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1547 prev_4addr = true;
f14543ee
FF		 1548 }
1549
14db74bc 1550 sta->sdata = vlansdata;
7e3ed02c
FF		 1551
1552 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1553 prev_4addr != new_4addr) {
1554 if (new_4addr)
1555 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1556 else
1557 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1558 }
1559
4fd6931e
JB		 1560 ieee80211_send_layer2_update(sta);
1561 }
1562
35b88623 1563 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1564 if (err)
1565 goto out_err;
4fd6931e 1566
77ee7c89
JB		 1567 /* When peer becomes authorized, init rate control as well */
1568 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1569 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
d64cf63e
AN		 1570 rate_control_rate_init(sta);
1571
87be1e1e 1572 mutex_unlock(&local->sta_mtx);
98dd6a57 1573
687da132
EG		 1574 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1575 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1576 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1577 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1578 sta_info_tx_streams(sta) != 1) {
1579 ht_dbg(sta->sdata,
1580 "%pM just authorized and MIMO capable - update SMPS\n",
1581 sta->sta.addr);
1582 ieee80211_send_smps_action(sta->sdata,
1583 sta->sdata->bss->req_smps,
1584 sta->sta.addr,
1585 sta->sdata->vif.bss_conf.bssid);
1586 }
1587
808118cb 1588 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1589 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1590 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1591 ieee80211_recalc_ps_vif(sdata);
1592 }
77ee7c89 1593
4fd6931e 1594 return 0;
77ee7c89
JB		 1595out_err:
1596 mutex_unlock(&local->sta_mtx);
1597 return err;
4fd6931e
JB		 1598}
1599
c5dd9c2b
LCC		 1600#ifdef CONFIG_MAC80211_MESH
1601static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1602 u8 *dst, u8 *next_hop)
1603{
14db74bc 1604 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1605 struct mesh_path *mpath;
1606 struct sta_info *sta;
c5dd9c2b 1607
14db74bc
JB		 1608 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1609
d0709a65 1610 rcu_read_lock();
abe60632 1611 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1612 if (!sta) {
1613 rcu_read_unlock();
c5dd9c2b 1614 return -ENOENT;
d0709a65 1615 }
c5dd9c2b 1616
ae76eef0
BC		 1617 mpath = mesh_path_add(sdata, dst);
1618 if (IS_ERR(mpath)) {
d0709a65 1619 rcu_read_unlock();
ae76eef0 1620 return PTR_ERR(mpath);
d0709a65 1621 }
c5dd9c2b 1622
c5dd9c2b 1623 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1624
c5dd9c2b
LCC		 1625 rcu_read_unlock();
1626 return 0;
1627}
1628
1629static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
bf7cd94d 1630 u8 *dst)
c5dd9c2b 1631{
f698d856
JBG		 1632 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1633
c5dd9c2b 1634 if (dst)
bf7cd94d 1635 return mesh_path_del(sdata, dst);
c5dd9c2b 1636
ece1a2e7 1637 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1638 return 0;
1639}
1640
1641static int ieee80211_change_mpath(struct wiphy *wiphy,
1642 struct net_device *dev,
1643 u8 *dst, u8 *next_hop)
1644{
14db74bc 1645 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1646 struct mesh_path *mpath;
1647 struct sta_info *sta;
1648
14db74bc
JB		 1649 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1650
d0709a65
JB		 1651 rcu_read_lock();
1652
abe60632 1653 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1654 if (!sta) {
1655 rcu_read_unlock();
c5dd9c2b 1656 return -ENOENT;
d0709a65 1657 }
c5dd9c2b 1658
bf7cd94d 1659 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1660 if (!mpath) {
1661 rcu_read_unlock();
c5dd9c2b
LCC		 1662 return -ENOENT;
1663 }
1664
1665 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1666
c5dd9c2b
LCC		 1667 rcu_read_unlock();
1668 return 0;
1669}
1670
1671static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1672 struct mpath_info *pinfo)
1673{
a3836e02
JB		 1674 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1675
1676 if (next_hop_sta)
1677 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1678 else
1679 memset(next_hop, 0, ETH_ALEN);
1680
7ce8c7a3
LAYS		 1681 memset(pinfo, 0, sizeof(*pinfo));
1682
f5ea9120
JB		 1683 pinfo->generation = mesh_paths_generation;
1684
c5dd9c2b 1685 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1686 MPATH_INFO_SN |
c5dd9c2b
LCC		 1687 MPATH_INFO_METRIC |
1688 MPATH_INFO_EXPTIME |
1689 MPATH_INFO_DISCOVERY_TIMEOUT |
1690 MPATH_INFO_DISCOVERY_RETRIES |
1691 MPATH_INFO_FLAGS;
1692
1693 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1694 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1695 pinfo->metric = mpath->metric;
1696 if (time_before(jiffies, mpath->exp_time))
1697 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1698 pinfo->discovery_timeout =
1699 jiffies_to_msecs(mpath->discovery_timeout);
1700 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1701 if (mpath->flags & MESH_PATH_ACTIVE)
1702 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1703 if (mpath->flags & MESH_PATH_RESOLVING)
1704 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1705 if (mpath->flags & MESH_PATH_SN_VALID)
1706 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1707 if (mpath->flags & MESH_PATH_FIXED)
1708 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1709 if (mpath->flags & MESH_PATH_RESOLVED)
1710 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1711}
1712
1713static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1714 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1715
1716{
14db74bc 1717 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1718 struct mesh_path *mpath;
1719
14db74bc
JB		 1720 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1721
c5dd9c2b 1722 rcu_read_lock();
bf7cd94d 1723 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1724 if (!mpath) {
1725 rcu_read_unlock();
1726 return -ENOENT;
1727 }
1728 memcpy(dst, mpath->dst, ETH_ALEN);
1729 mpath_set_pinfo(mpath, next_hop, pinfo);
1730 rcu_read_unlock();
1731 return 0;
1732}
1733
1734static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1735 int idx, u8 *dst, u8 *next_hop,
1736 struct mpath_info *pinfo)
1737{
14db74bc 1738 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1739 struct mesh_path *mpath;
1740
14db74bc
JB		 1741 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1742
c5dd9c2b 1743 rcu_read_lock();
bf7cd94d 1744 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1745 if (!mpath) {
1746 rcu_read_unlock();
1747 return -ENOENT;
1748 }
1749 memcpy(dst, mpath->dst, ETH_ALEN);
1750 mpath_set_pinfo(mpath, next_hop, pinfo);
1751 rcu_read_unlock();
1752 return 0;
1753}
93da9cc1 1754
24bdd9f4 1755static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1756 struct net_device *dev,
1757 struct mesh_config *conf)
1758{
1759 struct ieee80211_sub_if_data *sdata;
1760 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1761
93da9cc1 1762 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1763 return 0;
1764}
1765
1766static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1767{
1768 return (mask >> (parm-1)) & 0x1;
1769}
1770
c80d545d
JC		 1771static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1772 const struct mesh_setup *setup)
1773{
1774 u8 *new_ie;
1775 const u8 *old_ie;
4bb62344
CYY		 1776 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1777 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1778
581a8b0f 1779 /* allocate information elements */
c80d545d 1780 new_ie = NULL;
581a8b0f 1781 old_ie = ifmsh->ie;
c80d545d 1782
581a8b0f
JC		 1783 if (setup->ie_len) {
1784 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1785 GFP_KERNEL);
1786 if (!new_ie)
1787 return -ENOMEM;
1788 }
581a8b0f
JC		 1789 ifmsh->ie_len = setup->ie_len;
1790 ifmsh->ie = new_ie;
1791 kfree(old_ie);
c80d545d
JC		 1792
1793 /* now copy the rest of the setup parameters */
1794 ifmsh->mesh_id_len = setup->mesh_id_len;
1795 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1796 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1797 ifmsh->mesh_pp_id = setup->path_sel_proto;
1798 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1799 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1800 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1801 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1802 if (setup->is_authenticated)
1803 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1804 if (setup->is_secure)
1805 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1806
4bb62344
CYY		 1807 /* mcast rate setting in Mesh Node */
1808 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1809 sizeof(setup->mcast_rate));
ffb3cf30 1810 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1811
9bdbf04d
MP		 1812 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1813 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1814
c80d545d
JC		 1815 return 0;
1816}
1817
24bdd9f4 1818static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1819 struct net_device *dev, u32 mask,
1820 const struct mesh_config *nconf)
93da9cc1 1821{
1822 struct mesh_config *conf;
1823 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1824 struct ieee80211_if_mesh *ifmsh;
1825
93da9cc1 1826 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1827 ifmsh = &sdata->u.mesh;
93da9cc1 1828
93da9cc1 1829 /* Set the config options which we are interested in setting */
1830 conf = &(sdata->u.mesh.mshcfg);
1831 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1832 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1833 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1834 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1835 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1836 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1837 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1838 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1839 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1840 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1841 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1842 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1843 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1844 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1845 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1846 if (ifmsh->user_mpm)
1847 return -EBUSY;
93da9cc1 1848 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1849 }
d299a1f2
JC		 1850 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1851 conf->dot11MeshNbrOffsetMaxNeighbor =
1852 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1853 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1854 conf->dot11MeshHWMPmaxPREQretries =
1855 nconf->dot11MeshHWMPmaxPREQretries;
1856 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1857 conf->path_refresh_time = nconf->path_refresh_time;
1858 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1859 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1860 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1861 conf->dot11MeshHWMPactivePathTimeout =
1862 nconf->dot11MeshHWMPactivePathTimeout;
1863 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1864 conf->dot11MeshHWMPpreqMinInterval =
1865 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1866 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1867 conf->dot11MeshHWMPperrMinInterval =
1868 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1869 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1870 mask))
1871 conf->dot11MeshHWMPnetDiameterTraversalTime =
1872 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1873 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1874 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1875 ieee80211_mesh_root_setup(ifmsh);
1876 }
16dd7267 1877 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1878 /* our current gate announcement implementation rides on root
1879 * announcements, so require this ifmsh to also be a root node
1880 * */
1881 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1882 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1883 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1884 ieee80211_mesh_root_setup(ifmsh);
1885 }
16dd7267
JC		 1886 conf->dot11MeshGateAnnouncementProtocol =
1887 nconf->dot11MeshGateAnnouncementProtocol;
1888 }
a4f606ea 1889 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1890 conf->dot11MeshHWMPRannInterval =
1891 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1892 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1893 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1894 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1895 /* our RSSI threshold implementation is supported only for
1896 * devices that report signal in dBm.
1897 */
1898 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1899 return -ENOTSUPP;
1900 conf->rssi_threshold = nconf->rssi_threshold;
1901 }
70c33eaa
AN		 1902 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1903 conf->ht_opmode = nconf->ht_opmode;
1904 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1905 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1906 }
ac1073a6
CYY		 1907 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1908 conf->dot11MeshHWMPactivePathToRootTimeout =
1909 nconf->dot11MeshHWMPactivePathToRootTimeout;
1910 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1911 conf->dot11MeshHWMProotInterval =
1912 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1913 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1914 conf->dot11MeshHWMPconfirmationInterval =
1915 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1916 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1917 conf->power_mode = nconf->power_mode;
1918 ieee80211_mps_local_status_update(sdata);
1919 }
2b5e1967 1920 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1921 conf->dot11MeshAwakeWindowDuration =
1922 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1923 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1924 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1925 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1926 return 0;
1927}
1928
29cbe68c
JB		 1929static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1930 const struct mesh_config *conf,
1931 const struct mesh_setup *setup)
1932{
1933 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1934 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1935 int err;
29cbe68c 1936
c80d545d
JC		 1937 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1938 err = copy_mesh_setup(ifmsh, setup);
1939 if (err)
1940 return err;
cc1d2806 1941
04ecd257
JB		 1942 /* can mesh use other SMPS modes? */
1943 sdata->smps_mode = IEEE80211_SMPS_OFF;
1944 sdata->needed_rx_chains = sdata->local->rx_chains;
1945
4bf88530 1946 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1947 IEEE80211_CHANCTX_SHARED);
cc1d2806
JB		 1948 if (err)
1949 return err;
1950
2b5e1967 1951 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1952}
1953
1954static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1955{
1956 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1957
1958 ieee80211_stop_mesh(sdata);
55de908a 1959 ieee80211_vif_release_channel(sdata);
29cbe68c
JB		 1960
1961 return 0;
1962}
c5dd9c2b
LCC		 1963#endif
1964
9f1ba906
JM		 1965static int ieee80211_change_bss(struct wiphy *wiphy,
1966 struct net_device *dev,
1967 struct bss_parameters *params)
1968{
55de908a
JB		 1969 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1970 enum ieee80211_band band;
9f1ba906
JM		 1971 u32 changed = 0;
1972
7ca133bc 1973 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1974 return -ENOENT;
1975
1976 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1977
9f1ba906 1978 if (params->use_cts_prot >= 0) {
bda3933a 1979 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1980 changed |= BSS_CHANGED_ERP_CTS_PROT;
1981 }
1982 if (params->use_short_preamble >= 0) {
bda3933a 1983 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1984 params->use_short_preamble;
1985 changed |= BSS_CHANGED_ERP_PREAMBLE;
1986 }
43d35343
FF		 1987
1988 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1989 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1990 sdata->vif.bss_conf.use_short_slot = true;
1991 changed |= BSS_CHANGED_ERP_SLOT;
1992 }
1993
9f1ba906 1994 if (params->use_short_slot_time >= 0) {
bda3933a 1995 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1996 params->use_short_slot_time;
1997 changed |= BSS_CHANGED_ERP_SLOT;
1998 }
1999
90c97a04 2000 if (params->basic_rates) {
2103dec1
SW		 2001 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2002 wiphy->bands[band],
2003 params->basic_rates,
2004 params->basic_rates_len,
2005 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 2006 changed |= BSS_CHANGED_BASIC_RATES;
2007 }
2008
7b7b5e56
FF		 2009 if (params->ap_isolate >= 0) {
2010 if (params->ap_isolate)
2011 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2012 else
2013 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2014 }
2015
80d7e403
HS		 2016 if (params->ht_opmode >= 0) {
2017 sdata->vif.bss_conf.ht_operation_mode =
2018 (u16) params->ht_opmode;
2019 changed |= BSS_CHANGED_HT;
2020 }
2021
339afbf4 2022 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 2023 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2024 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2025 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2026 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 2027 changed |= BSS_CHANGED_P2P_PS;
2028 }
2029
67baf663
JD		 2030 if (params->p2p_opp_ps > 0) {
2031 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2032 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2033 changed |= BSS_CHANGED_P2P_PS;
2034 } else if (params->p2p_opp_ps == 0) {
2035 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2036 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 2037 changed |= BSS_CHANGED_P2P_PS;
2038 }
2039
9f1ba906
JM		 2040 ieee80211_bss_info_change_notify(sdata, changed);
2041
2042 return 0;
2043}
2044
31888487 2045static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 2046 struct net_device *dev,
31888487
JM		 2047 struct ieee80211_txq_params *params)
2048{
2049 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 2050 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 2051 struct ieee80211_tx_queue_params p;
2052
2053 if (!local->ops->conf_tx)
2054 return -EOPNOTSUPP;
2055
54bcbc69
JB		 2056 if (local->hw.queues < IEEE80211_NUM_ACS)
2057 return -EOPNOTSUPP;
2058
31888487
JM		 2059 memset(&p, 0, sizeof(p));
2060 p.aifs = params->aifs;
2061 p.cw_max = params->cwmax;
2062 p.cw_min = params->cwmin;
2063 p.txop = params->txop;
ab13315a
KV		 2064
2065 /*
2066 * Setting tx queue params disables u-apsd because it's only
2067 * called in master mode.
2068 */
2069 p.uapsd = false;
2070
a3304b0a
JB		 2071 sdata->tx_conf[params->ac] = p;
2072 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 2073 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 2074 "failed to set TX queue parameters for AC %d\n",
2075 params->ac);
31888487
JM		 2076 return -EINVAL;
2077 }
2078
7d25745d
JB		 2079 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2080
31888487
JM		 2081 return 0;
2082}
2083
665af4fc 2084#ifdef CONFIG_PM
ff1b6e69
JB		 2085static int ieee80211_suspend(struct wiphy *wiphy,
2086 struct cfg80211_wowlan *wowlan)
665af4fc 2087{
eecc4800 2088 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 2089}
2090
2091static int ieee80211_resume(struct wiphy *wiphy)
2092{
2093 return __ieee80211_resume(wiphy_priv(wiphy));
2094}
2095#else
2096#define ieee80211_suspend NULL
2097#define ieee80211_resume NULL
2098#endif
2099
2a519311 2100static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 2101 struct cfg80211_scan_request *req)
2102{
fd014284
JB		 2103 struct ieee80211_sub_if_data *sdata;
2104
2105 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 2106
2ca27bcf
JB		 2107 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2108 case NL80211_IFTYPE_STATION:
2109 case NL80211_IFTYPE_ADHOC:
2110 case NL80211_IFTYPE_MESH_POINT:
2111 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 2112 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 2113 break;
2114 case NL80211_IFTYPE_P2P_GO:
2115 if (sdata->local->ops->hw_scan)
2116 break;
e9d7732e
JB		 2117 /*
2118 * FIXME: implement NoA while scanning in software,
2119 * for now fall through to allow scanning only when
2120 * beaconing hasn't been configured yet
2121 */
2ca27bcf 2122 case NL80211_IFTYPE_AP:
5c95b940
AQ		 2123 /*
2124 * If the scan has been forced (and the driver supports
2125 * forcing), don't care about being beaconing already.
2126 * This will create problems to the attached stations (e.g. all
2127 * the frames sent while scanning on other channel will be
2128 * lost)
2129 */
2130 if (sdata->u.ap.beacon &&
2131 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2132 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2133 return -EOPNOTSUPP;
2134 break;
2135 default:
2136 return -EOPNOTSUPP;
2137 }
2a519311
JB		 2138
2139 return ieee80211_request_scan(sdata, req);
2140}
2141
79f460ca
LC		 2142static int
2143ieee80211_sched_scan_start(struct wiphy *wiphy,
2144 struct net_device *dev,
2145 struct cfg80211_sched_scan_request *req)
2146{
2147 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2148
2149 if (!sdata->local->ops->sched_scan_start)
2150 return -EOPNOTSUPP;
2151
2152 return ieee80211_request_sched_scan_start(sdata, req);
2153}
2154
2155static int
85a9994a 2156ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 2157{
2158 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2159
2160 if (!sdata->local->ops->sched_scan_stop)
2161 return -EOPNOTSUPP;
2162
85a9994a 2163 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 2164}
2165
636a5d36
JM		 2166static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2167 struct cfg80211_auth_request *req)
2168{
77fdaa12 2169 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2170}
2171
2172static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2173 struct cfg80211_assoc_request *req)
2174{
77fdaa12 2175 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2176}
2177
2178static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2179 struct cfg80211_deauth_request *req)
636a5d36 2180{
63c9c5e7 2181 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2182}
2183
2184static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2185 struct cfg80211_disassoc_request *req)
636a5d36 2186{
63c9c5e7 2187 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2188}
2189
af8cdcd8
JB		 2190static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2191 struct cfg80211_ibss_params *params)
2192{
55de908a 2193 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2194}
2195
2196static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2197{
55de908a 2198 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2199}
2200
391e53e3
AQ		 2201static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2202 int rate[IEEE80211_NUM_BANDS])
2203{
2204 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2205
9887dbf5
CD		 2206 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2207 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 2208
2209 return 0;
2210}
2211
b9a5f8ca
JM		 2212static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2213{
2214 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2215 int err;
b9a5f8ca 2216
f23a4780
AN		 2217 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2218 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2219
2220 if (err)
2221 return err;
2222 }
2223
310bc676
LT		 2224 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2225 err = drv_set_coverage_class(local, wiphy->coverage_class);
2226
2227 if (err)
2228 return err;
2229 }
2230
b9a5f8ca 2231 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2232 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2233
24487981
JB		 2234 if (err)
2235 return err;
b9a5f8ca
JM		 2236 }
2237
8bc83c24
JB		 2238 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2239 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2240 return -EINVAL;
b9a5f8ca 2241 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2242 }
2243 if (changed & WIPHY_PARAM_RETRY_LONG) {
2244 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2245 return -EINVAL;
b9a5f8ca 2246 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2247 }
b9a5f8ca
JM		 2248 if (changed &
2249 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2250 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2251
2252 return 0;
2253}
2254
7643a2c3 2255static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2256 struct wireless_dev *wdev,
fa61cf70 2257 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2258{
2259 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2260 struct ieee80211_sub_if_data *sdata;
7643a2c3 2261
1ea6f9c0
JB		 2262 if (wdev) {
2263 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2264
2265 switch (type) {
2266 case NL80211_TX_POWER_AUTOMATIC:
2267 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2268 break;
2269 case NL80211_TX_POWER_LIMITED:
2270 case NL80211_TX_POWER_FIXED:
2271 if (mbm < 0 || (mbm % 100))
2272 return -EOPNOTSUPP;
2273 sdata->user_power_level = MBM_TO_DBM(mbm);
2274 break;
2275 }
2276
2277 ieee80211_recalc_txpower(sdata);
2278
2279 return 0;
2280 }
55de908a 2281
7643a2c3 2282 switch (type) {
fa61cf70 2283 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2284 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
7643a2c3 2285 break;
fa61cf70 2286 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2287 case NL80211_TX_POWER_FIXED:
2288 if (mbm < 0 || (mbm % 100))
2289 return -EOPNOTSUPP;
fa61cf70 2290 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2291 break;
7643a2c3
JB		 2292 }
2293
1ea6f9c0
JB		 2294 mutex_lock(&local->iflist_mtx);
2295 list_for_each_entry(sdata, &local->interfaces, list)
2296 sdata->user_power_level = local->user_power_level;
2297 list_for_each_entry(sdata, &local->interfaces, list)
2298 ieee80211_recalc_txpower(sdata);
2299 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2300
2301 return 0;
2302}
2303
c8442118
JB		 2304static int ieee80211_get_tx_power(struct wiphy *wiphy,
2305 struct wireless_dev *wdev,
2306 int *dbm)
7643a2c3
JB		 2307{
2308 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2309 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2310
1ea6f9c0
JB		 2311 if (!local->use_chanctx)
2312 *dbm = local->hw.conf.power_level;
2313 else
2314 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2315
7643a2c3
JB		 2316 return 0;
2317}
2318
ab737a4f 2319static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2320 const u8 *addr)
ab737a4f
JB		 2321{
2322 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2323
2324 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2325
2326 return 0;
2327}
2328
1f87f7d3
JB		 2329static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2330{
2331 struct ieee80211_local *local = wiphy_priv(wiphy);
2332
2333 drv_rfkill_poll(local);
2334}
2335
aff89a9b 2336#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2337static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2338 struct wireless_dev *wdev,
2339 void *data, int len)
aff89a9b
JB		 2340{
2341 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2342 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2343
2344 if (!local->ops->testmode_cmd)
2345 return -EOPNOTSUPP;
2346
52981cd7
DS		 2347 if (wdev) {
2348 struct ieee80211_sub_if_data *sdata;
2349
2350 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2351 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2352 vif = &sdata->vif;
2353 }
2354
2355 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2356}
71063f0e
WYG		 2357
2358static int ieee80211_testmode_dump(struct wiphy *wiphy,
2359 struct sk_buff *skb,
2360 struct netlink_callback *cb,
2361 void *data, int len)
2362{
2363 struct ieee80211_local *local = wiphy_priv(wiphy);
2364
2365 if (!local->ops->testmode_dump)
2366 return -EOPNOTSUPP;
2367
2368 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2369}
aff89a9b
JB		 2370#endif
2371
687da132
EG		 2372int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2373 enum ieee80211_smps_mode smps_mode)
2374{
2375 struct sta_info *sta;
2376 enum ieee80211_smps_mode old_req;
2377 int i;
2378
2379 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2380 return -EINVAL;
2381
2382 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2383 return 0;
2384
2385 old_req = sdata->u.ap.req_smps;
2386 sdata->u.ap.req_smps = smps_mode;
2387
2388 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2389 if (old_req == smps_mode ||
2390 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2391 return 0;
2392
2393 /* If no associated stations, there's no need to do anything */
2394 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2395 sdata->smps_mode = smps_mode;
2396 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2397 return 0;
2398 }
2399
2400 ht_dbg(sdata,
2401 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2402 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2403
2404 mutex_lock(&sdata->local->sta_mtx);
2405 for (i = 0; i < STA_HASH_SIZE; i++) {
2406 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2407 lockdep_is_held(&sdata->local->sta_mtx));
2408 sta;
2409 sta = rcu_dereference_protected(sta->hnext,
2410 lockdep_is_held(&sdata->local->sta_mtx))) {
2411 /*
2412 * Only stations associated to our AP and
2413 * associated VLANs
2414 */
2415 if (sta->sdata->bss != &sdata->u.ap)
2416 continue;
2417
2418 /* This station doesn't support MIMO - skip it */
2419 if (sta_info_tx_streams(sta) == 1)
2420 continue;
2421
2422 /*
2423 * Don't wake up a STA just to send the action frame
2424 * unless we are getting more restrictive.
2425 */
2426 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2427 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2428 smps_mode)) {
2429 ht_dbg(sdata,
2430 "Won't send SMPS to sleeping STA %pM\n",
2431 sta->sta.addr);
2432 continue;
2433 }
2434
2435 /*
2436 * If the STA is not authorized, wait until it gets
2437 * authorized and the action frame will be sent then.
2438 */
2439 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2440 continue;
2441
2442 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2443 ieee80211_send_smps_action(sdata, smps_mode,
2444 sta->sta.addr,
2445 sdata->vif.bss_conf.bssid);
2446 }
2447 }
2448 mutex_unlock(&sdata->local->sta_mtx);
2449
2450 sdata->smps_mode = smps_mode;
2451 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2452
2453 return 0;
2454}
2455
2456int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2457 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2458{
2459 const u8 *ap;
2460 enum ieee80211_smps_mode old_req;
2461 int err;
2462
8d61ffa5 2463 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2464
687da132
EG		 2465 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2466 return -EINVAL;
2467
0f78231b
JB		 2468 old_req = sdata->u.mgd.req_smps;
2469 sdata->u.mgd.req_smps = smps_mode;
2470
2471 if (old_req == smps_mode &&
2472 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2473 return 0;
2474
2475 /*
2476 * If not associated, or current association is not an HT
04ecd257
JB		 2477 * association, there's no need to do anything, just store
2478 * the new value until we associate.
0f78231b
JB		 2479 */
2480 if (!sdata->u.mgd.associated ||
4bf88530 2481 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2482 return 0;
0f78231b 2483
0c1ad2ca 2484 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2485
2486 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2487 if (sdata->u.mgd.powersave)
2488 smps_mode = IEEE80211_SMPS_DYNAMIC;
2489 else
2490 smps_mode = IEEE80211_SMPS_OFF;
2491 }
2492
2493 /* send SM PS frame to AP */
2494 err = ieee80211_send_smps_action(sdata, smps_mode,
2495 ap, ap);
2496 if (err)
2497 sdata->u.mgd.req_smps = old_req;
2498
2499 return err;
2500}
2501
bc92afd9
JB		 2502static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2503 bool enabled, int timeout)
2504{
2505 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2506 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2507
2d3db210 2508 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2509 return -EOPNOTSUPP;
2510
bc92afd9
JB		 2511 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2512 return -EOPNOTSUPP;
2513
2514 if (enabled == sdata->u.mgd.powersave &&
ff616381 2515 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2516 return 0;
2517
2518 sdata->u.mgd.powersave = enabled;
ff616381 2519 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2520
0f78231b 2521 /* no change, but if automatic follow powersave */
ed405be5 2522 sdata_lock(sdata);
687da132 2523 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2524 sdata_unlock(sdata);
0f78231b 2525
bc92afd9
JB		 2526 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2527 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2528
2529 ieee80211_recalc_ps(local, -1);
ab095877 2530 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2531
2532 return 0;
2533}
2534
a97c13c3
JO		 2535static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2536 struct net_device *dev,
2537 s32 rssi_thold, u32 rssi_hyst)
2538{
2539 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2540 struct ieee80211_vif *vif = &sdata->vif;
2541 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2542
a97c13c3
JO		 2543 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2544 rssi_hyst == bss_conf->cqm_rssi_hyst)
2545 return 0;
2546
2547 bss_conf->cqm_rssi_thold = rssi_thold;
2548 bss_conf->cqm_rssi_hyst = rssi_hyst;
2549
2550 /* tell the driver upon association, unless already associated */
ea086359
JB		 2551 if (sdata->u.mgd.associated &&
2552 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2553 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2554
2555 return 0;
2556}
2557
9930380f
JB		 2558static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2559 struct net_device *dev,
2560 const u8 *addr,
2561 const struct cfg80211_bitrate_mask *mask)
2562{
2563 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2564 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2565 int i, ret;
2c7e6bc9 2566
554a43d5
EP		 2567 if (!ieee80211_sdata_running(sdata))
2568 return -ENETDOWN;
2569
bdbfd6b5
SM		 2570 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2571 ret = drv_set_bitrate_mask(local, sdata, mask);
2572 if (ret)
2573 return ret;
2574 }
9930380f 2575
19468413 2576 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2577 struct ieee80211_supported_band *sband = wiphy->bands[i];
2578 int j;
2579
37eb0b16 2580 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2581 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2582 sizeof(mask->control[i].ht_mcs));
2ffbe6d3
FF		 2583
2584 sdata->rc_has_mcs_mask[i] = false;
2585 if (!sband)
2586 continue;
2587
2588 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2589 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2590 sdata->rc_has_mcs_mask[i] = true;
2591 break;
2592 }
19468413 2593 }
9930380f 2594
37eb0b16 2595 return 0;
9930380f
JB		 2596}
2597
2eb278e0
JB		 2598static int ieee80211_start_roc_work(struct ieee80211_local *local,
2599 struct ieee80211_sub_if_data *sdata,
2600 struct ieee80211_channel *channel,
2eb278e0 2601 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2602 struct sk_buff *txskb,
2603 enum ieee80211_roc_type type)
2eb278e0
JB		 2604{
2605 struct ieee80211_roc_work *roc, *tmp;
2606 bool queued = false;
21f83589 2607 int ret;
21f83589
JB		 2608
2609 lockdep_assert_held(&local->mtx);
2610
fe57d9f5
JB		 2611 if (local->use_chanctx && !local->ops->remain_on_channel)
2612 return -EOPNOTSUPP;
2613
2eb278e0
JB		 2614 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2615 if (!roc)
2616 return -ENOMEM;
2617
2618 roc->chan = channel;
2eb278e0
JB		 2619 roc->duration = duration;
2620 roc->req_duration = duration;
2621 roc->frame = txskb;
d339d5ca 2622 roc->type = type;
2eb278e0
JB		 2623 roc->mgmt_tx_cookie = (unsigned long)txskb;
2624 roc->sdata = sdata;
2625 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2626 INIT_LIST_HEAD(&roc->dependents);
2627
2628 /* if there's one pending or we're scanning, queue this one */
164eb02d
SW		 2629 if (!list_empty(&local->roc_list) ||
2630 local->scanning || local->radar_detect_enabled)
2eb278e0
JB		 2631 goto out_check_combine;
2632
2633 /* if not HW assist, just queue & schedule work */
2634 if (!local->ops->remain_on_channel) {
2635 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2636 goto out_queue;
2637 }
2638
2639 /* otherwise actually kick it off here (for error handling) */
2640
2641 /*
2642 * If the duration is zero, then the driver
2643 * wouldn't actually do anything. Set it to
2644 * 10 for now.
2645 *
2646 * TODO: cancel the off-channel operation
2647 * when we get the SKB's TX status and
2648 * the wait time was zero before.
2649 */
2650 if (!duration)
2651 duration = 10;
2652
d339d5ca 2653 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2654 if (ret) {
2eb278e0
JB		 2655 kfree(roc);
2656 return ret;
21f83589
JB		 2657 }
2658
2eb278e0
JB		 2659 roc->started = true;
2660 goto out_queue;
2661
2662 out_check_combine:
2663 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2664 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2665 continue;
2666
2667 /*
2668 * Extend this ROC if possible:
2669 *
2670 * If it hasn't started yet, just increase the duration
2671 * and add the new one to the list of dependents.
d339d5ca
IP		 2672 * If the type of the new ROC has higher priority, modify the
2673 * type of the previous one to match that of the new one.
2eb278e0
JB		 2674 */
2675 if (!tmp->started) {
2676 list_add_tail(&roc->list, &tmp->dependents);
2677 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2678 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2679 queued = true;
2680 break;
2681 }
2682
2683 /* If it has already started, it's more difficult ... */
2684 if (local->ops->remain_on_channel) {
2685 unsigned long j = jiffies;
2686
2687 /*
2688 * In the offloaded ROC case, if it hasn't begun, add
2689 * this new one to the dependent list to be handled
d339d5ca 2690 * when the master one begins. If it has begun,
2eb278e0
JB		 2691 * check that there's still a minimum time left and
2692 * if so, start this one, transmitting the frame, but
d339d5ca 2693 * add it to the list directly after this one with
2eb278e0
JB		 2694 * a reduced time so we'll ask the driver to execute
2695 * it right after finishing the previous one, in the
2696 * hope that it'll also be executed right afterwards,
2697 * effectively extending the old one.
2698 * If there's no minimum time left, just add it to the
2699 * normal list.
d339d5ca
IP		 2700 * TODO: the ROC type is ignored here, assuming that it
2701 * is better to immediately use the current ROC.
2eb278e0
JB		 2702 */
2703 if (!tmp->hw_begun) {
2704 list_add_tail(&roc->list, &tmp->dependents);
2705 queued = true;
2706 break;
2707 }
2708
2709 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2710 tmp->hw_start_time +
2711 msecs_to_jiffies(tmp->duration))) {
2712 int new_dur;
2713
2714 ieee80211_handle_roc_started(roc);
2715
2716 new_dur = roc->duration -
2717 jiffies_to_msecs(tmp->hw_start_time +
2718 msecs_to_jiffies(
2719 tmp->duration) -
2720 j);
2721
2722 if (new_dur > 0) {
2723 /* add right after tmp */
2724 list_add(&roc->list, &tmp->list);
2725 } else {
2726 list_add_tail(&roc->list,
2727 &tmp->dependents);
2728 }
2729 queued = true;
2730 }
2731 } else if (del_timer_sync(&tmp->work.timer)) {
2732 unsigned long new_end;
2733
2734 /*
2735 * In the software ROC case, cancel the timer, if
2736 * that fails then the finish work is already
2737 * queued/pending and thus we queue the new ROC
2738 * normally, if that succeeds then we can extend
2739 * the timer duration and TX the frame (if any.)
2740 */
2741
2742 list_add_tail(&roc->list, &tmp->dependents);
2743 queued = true;
2744
2745 new_end = jiffies + msecs_to_jiffies(roc->duration);
2746
2747 /* ok, it was started & we canceled timer */
2748 if (time_after(new_end, tmp->work.timer.expires))
2749 mod_timer(&tmp->work.timer, new_end);
2750 else
2751 add_timer(&tmp->work.timer);
2752
2753 ieee80211_handle_roc_started(roc);
2754 }
2755 break;
2756 }
2757
2758 out_queue:
2759 if (!queued)
2760 list_add_tail(&roc->list, &local->roc_list);
2761
2762 /*
50febf6a 2763 * cookie is either the roc cookie (for normal roc)
2eb278e0
JB		 2764 * or the SKB (for mgmt TX)
2765 */
50febf6a
JB		 2766 if (!txskb) {
2767 /* local->mtx protects this */
2768 local->roc_cookie_counter++;
2769 roc->cookie = local->roc_cookie_counter;
2770 /* wow, you wrapped 64 bits ... more likely a bug */
2771 if (WARN_ON(roc->cookie == 0)) {
2772 roc->cookie = 1;
2773 local->roc_cookie_counter++;
2774 }
2775 *cookie = roc->cookie;
2776 } else {
2eb278e0 2777 *cookie = (unsigned long)txskb;
50febf6a 2778 }
2eb278e0
JB		 2779
2780 return 0;
21f83589
JB		 2781}
2782
b8bc4b0a 2783static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2784 struct wireless_dev *wdev,
b8bc4b0a 2785 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2786 unsigned int duration,
2787 u64 *cookie)
2788{
71bbc994 2789 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2790 struct ieee80211_local *local = sdata->local;
2eb278e0 2791 int ret;
21f83589 2792
2eb278e0 2793 mutex_lock(&local->mtx);
42d97a59 2794 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2795 duration, cookie, NULL,
2796 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2797 mutex_unlock(&local->mtx);
b8bc4b0a 2798
2eb278e0 2799 return ret;
b8bc4b0a
JB		 2800}
2801
2eb278e0
JB		 2802static int ieee80211_cancel_roc(struct ieee80211_local *local,
2803 u64 cookie, bool mgmt_tx)
21f83589 2804{
2eb278e0 2805 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2806 int ret;
2807
2eb278e0
JB		 2808 mutex_lock(&local->mtx);
2809 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2810 struct ieee80211_roc_work *dep, *tmp2;
2811
2812 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2813 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2814 continue;
2815 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2816 continue;
2817 /* found dependent item -- just remove it */
2818 list_del(&dep->list);
2819 mutex_unlock(&local->mtx);
2820
3fbd45ca 2821 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2822 return 0;
2823 }
2824
50febf6a 2825 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2826 continue;
2827 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2828 continue;
21f83589 2829
2eb278e0
JB		 2830 found = roc;
2831 break;
2832 }
21f83589 2833
2eb278e0
JB		 2834 if (!found) {
2835 mutex_unlock(&local->mtx);
2836 return -ENOENT;
2837 }
21f83589 2838
e979e33c
JB		 2839 /*
2840 * We found the item to cancel, so do that. Note that it
2841 * may have dependents, which we also cancel (and send
2842 * the expired signal for.) Not doing so would be quite
2843 * tricky here, but we may need to fix it later.
2844 */
2845
2eb278e0
JB		 2846 if (local->ops->remain_on_channel) {
2847 if (found->started) {
2848 ret = drv_cancel_remain_on_channel(local);
2849 if (WARN_ON_ONCE(ret)) {
2850 mutex_unlock(&local->mtx);
2851 return ret;
2852 }
2853 }
21f83589 2854
2eb278e0 2855 list_del(&found->list);
21f83589 2856
0f6b3f59
JB		 2857 if (found->started)
2858 ieee80211_start_next_roc(local);
2eb278e0 2859 mutex_unlock(&local->mtx);
21f83589 2860
3fbd45ca 2861 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2862 } else {
2863 /* work may be pending so use it all the time */
2864 found->abort = true;
2865 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2866
21f83589
JB		 2867 mutex_unlock(&local->mtx);
2868
2eb278e0
JB		 2869 /* work will clean up etc */
2870 flush_delayed_work(&found->work);
3fbd45ca
JB		 2871 WARN_ON(!found->to_be_freed);
2872 kfree(found);
21f83589 2873 }
b8bc4b0a 2874
2eb278e0 2875 return 0;
b8bc4b0a
JB		 2876}
2877
2eb278e0 2878static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2879 struct wireless_dev *wdev,
2eb278e0 2880 u64 cookie)
f30221e4 2881{
71bbc994 2882 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2883 struct ieee80211_local *local = sdata->local;
f30221e4 2884
2eb278e0 2885 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2886}
2887
164eb02d
SW		 2888static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2889 struct net_device *dev,
2890 struct cfg80211_chan_def *chandef)
2891{
2892 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2893 struct ieee80211_local *local = sdata->local;
2894 unsigned long timeout;
2895 int err;
2896
2897 if (!list_empty(&local->roc_list) || local->scanning)
2898 return -EBUSY;
2899
2900 /* whatever, but channel contexts should not complain about that one */
2901 sdata->smps_mode = IEEE80211_SMPS_OFF;
2902 sdata->needed_rx_chains = local->rx_chains;
2903 sdata->radar_required = true;
2904
2905 mutex_lock(&local->iflist_mtx);
2906 err = ieee80211_vif_use_channel(sdata, chandef,
2907 IEEE80211_CHANCTX_SHARED);
2908 mutex_unlock(&local->iflist_mtx);
2909 if (err)
2910 return err;
2911
2912 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2913 ieee80211_queue_delayed_work(&sdata->local->hw,
2914 &sdata->dfs_cac_timer_work, timeout);
2915
2916 return 0;
2917}
2918
73da7d5b
SW		 2919static struct cfg80211_beacon_data *
2920cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2921{
2922 struct cfg80211_beacon_data *new_beacon;
2923 u8 *pos;
2924 int len;
2925
2926 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2927 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2928 beacon->probe_resp_len;
2929
2930 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2931 if (!new_beacon)
2932 return NULL;
2933
2934 pos = (u8 *)(new_beacon + 1);
2935 if (beacon->head_len) {
2936 new_beacon->head_len = beacon->head_len;
2937 new_beacon->head = pos;
2938 memcpy(pos, beacon->head, beacon->head_len);
2939 pos += beacon->head_len;
2940 }
2941 if (beacon->tail_len) {
2942 new_beacon->tail_len = beacon->tail_len;
2943 new_beacon->tail = pos;
2944 memcpy(pos, beacon->tail, beacon->tail_len);
2945 pos += beacon->tail_len;
2946 }
2947 if (beacon->beacon_ies_len) {
2948 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2949 new_beacon->beacon_ies = pos;
2950 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2951 pos += beacon->beacon_ies_len;
2952 }
2953 if (beacon->proberesp_ies_len) {
2954 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2955 new_beacon->proberesp_ies = pos;
2956 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2957 pos += beacon->proberesp_ies_len;
2958 }
2959 if (beacon->assocresp_ies_len) {
2960 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2961 new_beacon->assocresp_ies = pos;
2962 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2963 pos += beacon->assocresp_ies_len;
2964 }
2965 if (beacon->probe_resp_len) {
2966 new_beacon->probe_resp_len = beacon->probe_resp_len;
2967 beacon->probe_resp = pos;
2968 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2969 pos += beacon->probe_resp_len;
2970 }
2971
2972 return new_beacon;
2973}
2974
2975void ieee80211_csa_finalize_work(struct work_struct *work)
2976{
2977 struct ieee80211_sub_if_data *sdata =
2978 container_of(work, struct ieee80211_sub_if_data,
2979 csa_finalize_work);
2980 struct ieee80211_local *local = sdata->local;
0951ebb8 2981 int err, changed = 0;
73da7d5b 2982
e487eaeb
SW		 2983 sdata_lock(sdata);
2984 /* AP might have been stopped while waiting for the lock. */
2985 if (!sdata->vif.csa_active)
2986 goto unlock;
2987
73da7d5b 2988 if (!ieee80211_sdata_running(sdata))
e487eaeb 2989 goto unlock;
73da7d5b 2990
73da7d5b 2991 sdata->radar_required = sdata->csa_radar_required;
33787fc4 2992 err = ieee80211_vif_change_channel(sdata, &changed);
73da7d5b 2993 if (WARN_ON(err < 0))
e487eaeb 2994 goto unlock;
73da7d5b 2995
7578d575 2996 if (!local->use_chanctx) {
33787fc4 2997 local->_oper_chandef = sdata->csa_chandef;
7578d575
AN		 2998 ieee80211_hw_config(local, 0);
2999 }
3000
cd7760e6 3001 ieee80211_bss_info_change_notify(sdata, changed);
73da7d5b 3002
e487eaeb 3003 sdata->vif.csa_active = false;
cd7760e6
SW		 3004 switch (sdata->vif.type) {
3005 case NL80211_IFTYPE_AP:
3006 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3007 if (err < 0)
e487eaeb
SW		 3008 goto unlock;
3009
cd7760e6
SW		 3010 changed |= err;
3011 kfree(sdata->u.ap.next_beacon);
3012 sdata->u.ap.next_beacon = NULL;
3013
3014 ieee80211_bss_info_change_notify(sdata, err);
3015 break;
3016 case NL80211_IFTYPE_ADHOC:
3017 ieee80211_ibss_finish_csa(sdata);
3018 break;
b8456a14
CYY		 3019#ifdef CONFIG_MAC80211_MESH
3020 case NL80211_IFTYPE_MESH_POINT:
3021 err = ieee80211_mesh_finish_csa(sdata);
3022 if (err < 0)
e487eaeb 3023 goto unlock;
b8456a14
CYY		 3024 break;
3025#endif
cd7760e6
SW		 3026 default:
3027 WARN_ON(1);
e487eaeb 3028 goto unlock;
cd7760e6 3029 }
73da7d5b
SW		 3030
3031 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3032 IEEE80211_MAX_QUEUE_MAP,
3033 IEEE80211_QUEUE_STOP_REASON_CSA);
3034
33787fc4 3035 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
e487eaeb
SW		 3036
3037unlock:
3038 sdata_unlock(sdata);
73da7d5b
SW		 3039}
3040
3041static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3042 struct cfg80211_csa_settings *params)
3043{
3044 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3045 struct ieee80211_local *local = sdata->local;
3046 struct ieee80211_chanctx_conf *chanctx_conf;
3047 struct ieee80211_chanctx *chanctx;
c6da674a 3048 struct ieee80211_if_mesh __maybe_unused *ifmsh;
73da7d5b
SW		 3049 int err, num_chanctx;
3050
7ca133bc
SW		 3051 lockdep_assert_held(&sdata->wdev.mtx);
3052
73da7d5b
SW		 3053 if (!list_empty(&local->roc_list) || local->scanning)
3054 return -EBUSY;
3055
3056 if (sdata->wdev.cac_started)
3057 return -EBUSY;
3058
3059 if (cfg80211_chandef_identical(&params->chandef,
3060 &sdata->vif.bss_conf.chandef))
3061 return -EINVAL;
3062
3063 rcu_read_lock();
3064 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3065 if (!chanctx_conf) {
3066 rcu_read_unlock();
3067 return -EBUSY;
3068 }
3069
3070 /* don't handle for multi-VIF cases */
3071 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
3072 if (chanctx->refcount > 1) {
3073 rcu_read_unlock();
3074 return -EBUSY;
3075 }
3076 num_chanctx = 0;
3077 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3078 num_chanctx++;
3079 rcu_read_unlock();
3080
3081 if (num_chanctx > 1)
3082 return -EBUSY;
3083
3084 /* don't allow another channel switch if one is already active. */
3085 if (sdata->vif.csa_active)
3086 return -EBUSY;
3087
73da7d5b
SW		 3088 switch (sdata->vif.type) {
3089 case NL80211_IFTYPE_AP:
cd7760e6
SW		 3090 sdata->csa_counter_offset_beacon =
3091 params->counter_offset_beacon;
3092 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3093 sdata->u.ap.next_beacon =
3094 cfg80211_beacon_dup(&params->beacon_after);
3095 if (!sdata->u.ap.next_beacon)
3096 return -ENOMEM;
3097
3098 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3099 if (err < 0) {
3100 kfree(sdata->u.ap.next_beacon);
3101 return err;
3102 }
3103 break;
3104 case NL80211_IFTYPE_ADHOC:
3105 if (!sdata->vif.bss_conf.ibss_joined)
3106 return -EINVAL;
3107
3108 if (params->chandef.width != sdata->u.ibss.chandef.width)
3109 return -EINVAL;
3110
3111 switch (params->chandef.width) {
3112 case NL80211_CHAN_WIDTH_40:
3113 if (cfg80211_get_chandef_type(&params->chandef) !=
3114 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3115 return -EINVAL;
3116 case NL80211_CHAN_WIDTH_5:
3117 case NL80211_CHAN_WIDTH_10:
3118 case NL80211_CHAN_WIDTH_20_NOHT:
3119 case NL80211_CHAN_WIDTH_20:
3120 break;
3121 default:
3122 return -EINVAL;
3123 }
3124
3125 /* changes into another band are not supported */
3126 if (sdata->u.ibss.chandef.chan->band !=
3127 params->chandef.chan->band)
3128 return -EINVAL;
3129
3130 err = ieee80211_ibss_csa_beacon(sdata, params);
3131 if (err < 0)
3132 return err;
73da7d5b 3133 break;
c6da674a
CYY		 3134#ifdef CONFIG_MAC80211_MESH
3135 case NL80211_IFTYPE_MESH_POINT:
3136 ifmsh = &sdata->u.mesh;
3137
3138 if (!ifmsh->mesh_id)
3139 return -EINVAL;
3140
3141 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3142 return -EINVAL;
3143
3144 /* changes into another band are not supported */
3145 if (sdata->vif.bss_conf.chandef.chan->band !=
3146 params->chandef.chan->band)
3147 return -EINVAL;
3148
3f718fd8
CYY		 3149 ifmsh->chsw_init = true;
3150 if (!ifmsh->pre_value)
3151 ifmsh->pre_value = 1;
3152 else
3153 ifmsh->pre_value++;
3154
b8456a14 3155 err = ieee80211_mesh_csa_beacon(sdata, params, true);
3f718fd8
CYY		 3156 if (err < 0) {
3157 ifmsh->chsw_init = false;
c6da674a 3158 return err;
3f718fd8 3159 }
c6da674a
CYY		 3160 break;
3161#endif
73da7d5b
SW		 3162 default:
3163 return -EOPNOTSUPP;
3164 }
3165
73da7d5b
SW		 3166 sdata->csa_radar_required = params->radar_required;
3167
3168 if (params->block_tx)
3169 ieee80211_stop_queues_by_reason(&local->hw,
3170 IEEE80211_MAX_QUEUE_MAP,
3171 IEEE80211_QUEUE_STOP_REASON_CSA);
3172
33787fc4 3173 sdata->csa_chandef = params->chandef;
73da7d5b
SW		 3174 sdata->vif.csa_active = true;
3175
3176 ieee80211_bss_info_change_notify(sdata, err);
3177 drv_channel_switch_beacon(sdata, &params->chandef);
3178
3179 return 0;
3180}
3181
71bbc994 3182static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3183 struct cfg80211_mgmt_tx_params *params,
3184 u64 *cookie)
026331c4 3185{
71bbc994 3186 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d
JB		 3187 struct ieee80211_local *local = sdata->local;
3188 struct sk_buff *skb;
3189 struct sta_info *sta;
b176e629 3190 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3191 bool need_offchan = false;
e247bd90 3192 u32 flags;
2eb278e0 3193 int ret;
f7ca38df 3194
b176e629 3195 if (params->dont_wait_for_ack)
e247bd90
JB		 3196 flags = IEEE80211_TX_CTL_NO_ACK;
3197 else
3198 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3199 IEEE80211_TX_CTL_REQ_TX_STATUS;
3200
b176e629 3201 if (params->no_cck)
aad14ceb
RM		 3202 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3203
9d38d85d
JB		 3204 switch (sdata->vif.type) {
3205 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3206 if (!sdata->vif.bss_conf.ibss_joined)
3207 need_offchan = true;
3208 /* fall through */
3209#ifdef CONFIG_MAC80211_MESH
3210 case NL80211_IFTYPE_MESH_POINT:
3211 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3212 !sdata->u.mesh.mesh_id_len)
3213 need_offchan = true;
3214 /* fall through */
3215#endif
663fcafd
JB		 3216 case NL80211_IFTYPE_AP:
3217 case NL80211_IFTYPE_AP_VLAN:
3218 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3219 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3220 !ieee80211_vif_is_mesh(&sdata->vif) &&
3221 !rcu_access_pointer(sdata->bss->beacon))
3222 need_offchan = true;
663fcafd 3223 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3224 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3225 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3226 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3227 break;
3228 rcu_read_lock();
3229 sta = sta_info_get(sdata, mgmt->da);
3230 rcu_read_unlock();
3231 if (!sta)
3232 return -ENOLINK;
3233 break;
3234 case NL80211_IFTYPE_STATION:
663fcafd 3235 case NL80211_IFTYPE_P2P_CLIENT:
2eb278e0
JB		 3236 if (!sdata->u.mgd.associated)
3237 need_offchan = true;
9d38d85d 3238 break;
f142c6b9
JB		 3239 case NL80211_IFTYPE_P2P_DEVICE:
3240 need_offchan = true;
3241 break;
9d38d85d
JB		 3242 default:
3243 return -EOPNOTSUPP;
3244 }
3245
f7aeb6fb
AQ		 3246 /* configurations requiring offchan cannot work if no channel has been
3247 * specified
3248 */
b176e629 3249 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3250 return -EINVAL;
3251
2eb278e0
JB		 3252 mutex_lock(&local->mtx);
3253
3254 /* Check if the operating channel is the requested channel */
3255 if (!need_offchan) {
55de908a
JB		 3256 struct ieee80211_chanctx_conf *chanctx_conf;
3257
3258 rcu_read_lock();
3259 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3260
f7aeb6fb 3261 if (chanctx_conf) {
b176e629
AO		 3262 need_offchan = params->chan &&
3263 (params->chan !=
3264 chanctx_conf->def.chan);
3265 } else if (!params->chan) {
f7aeb6fb
AQ		 3266 ret = -EINVAL;
3267 rcu_read_unlock();
3268 goto out_unlock;
3269 } else {
2eb278e0 3270 need_offchan = true;
f7aeb6fb 3271 }
55de908a 3272 rcu_read_unlock();
2eb278e0
JB		 3273 }
3274
b176e629 3275 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3276 ret = -EBUSY;
3277 goto out_unlock;
3278 }
3279
b176e629 3280 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3281 if (!skb) {
3282 ret = -ENOMEM;
3283 goto out_unlock;
3284 }
9d38d85d
JB		 3285 skb_reserve(skb, local->hw.extra_tx_headroom);
3286
b176e629 3287 memcpy(skb_put(skb, params->len), params->buf, params->len);
9d38d85d
JB		 3288
3289 IEEE80211_SKB_CB(skb)->flags = flags;
3290
3291 skb->dev = sdata->dev;
9d38d85d 3292
2eb278e0 3293 if (!need_offchan) {
7f9f78ab 3294 *cookie = (unsigned long) skb;
f30221e4 3295 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3296 ret = 0;
3297 goto out_unlock;
f30221e4
JB		 3298 }
3299
6c17b77b
SF		 3300 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3301 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2eb278e0
JB		 3302 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3303 IEEE80211_SKB_CB(skb)->hw_queue =
3304 local->hw.offchannel_tx_hw_queue;
f30221e4 3305
2eb278e0 3306 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3307 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3308 params->wait, cookie, skb,
d339d5ca 3309 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3310 if (ret)
3311 kfree_skb(skb);
3312 out_unlock:
3313 mutex_unlock(&local->mtx);
3314 return ret;
026331c4
JM		 3315}
3316
f30221e4 3317static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3318 struct wireless_dev *wdev,
f30221e4
JB		 3319 u64 cookie)
3320{
71bbc994 3321 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3322
2eb278e0 3323 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3324}
3325
7be5086d 3326static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3327 struct wireless_dev *wdev,
7be5086d
JB		 3328 u16 frame_type, bool reg)
3329{
3330 struct ieee80211_local *local = wiphy_priv(wiphy);
3331
6abe0563 3332 switch (frame_type) {
6abe0563
WH		 3333 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3334 if (reg)
3335 local->probe_req_reg++;
3336 else
3337 local->probe_req_reg--;
7be5086d 3338
35f5149e
FF		 3339 if (!local->open_count)
3340 break;
3341
6abe0563
WH		 3342 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3343 break;
3344 default:
3345 break;
3346 }
7be5086d
JB		 3347}
3348
15d96753
BR		 3349static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3350{
3351 struct ieee80211_local *local = wiphy_priv(wiphy);
3352
3353 if (local->started)
3354 return -EOPNOTSUPP;
3355
3356 return drv_set_antenna(local, tx_ant, rx_ant);
3357}
3358
3359static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3360{
3361 struct ieee80211_local *local = wiphy_priv(wiphy);
3362
3363 return drv_get_antenna(local, tx_ant, rx_ant);
3364}
3365
38c09159
JL		 3366static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3367{
3368 struct ieee80211_local *local = wiphy_priv(wiphy);
3369
3370 return drv_set_ringparam(local, tx, rx);
3371}
3372
3373static void ieee80211_get_ringparam(struct wiphy *wiphy,
3374 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3375{
3376 struct ieee80211_local *local = wiphy_priv(wiphy);
3377
3378 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3379}
3380
c68f4b89
JB		 3381static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3382 struct net_device *dev,
3383 struct cfg80211_gtk_rekey_data *data)
3384{
3385 struct ieee80211_local *local = wiphy_priv(wiphy);
3386 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3387
3388 if (!local->ops->set_rekey_data)
3389 return -EOPNOTSUPP;
3390
3391 drv_set_rekey_data(local, sdata, data);
3392
3393 return 0;
3394}
3395
dfe018bf
AN		 3396static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3397{
3398 u8 *pos = (void *)skb_put(skb, 7);
3399
3400 *pos++ = WLAN_EID_EXT_CAPABILITY;
3401 *pos++ = 5; /* len */
3402 *pos++ = 0x0;
3403 *pos++ = 0x0;
3404 *pos++ = 0x0;
3405 *pos++ = 0x0;
3406 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3407}
3408
3409static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3410{
3411 struct ieee80211_local *local = sdata->local;
3412 u16 capab;
3413
3414 capab = 0;
55de908a 3415 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
dfe018bf
AN		 3416 return capab;
3417
3418 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3419 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3420 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3421 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3422
3423 return capab;
3424}
3425
3426static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3427 u8 *peer, u8 *bssid)
3428{
3429 struct ieee80211_tdls_lnkie *lnkid;
3430
3431 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3432
3433 lnkid->ie_type = WLAN_EID_LINK_ID;
3434 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3435
3436 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3437 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3438 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3439}
3440
3441static int
3442ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3443 u8 *peer, u8 action_code, u8 dialog_token,
3444 u16 status_code, struct sk_buff *skb)
3445{
3446 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3447 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3448 struct ieee80211_tdls_data *tf;
3449
3450 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3451
3452 memcpy(tf->da, peer, ETH_ALEN);
3453 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3454 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3455 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3456
3457 switch (action_code) {
3458 case WLAN_TDLS_SETUP_REQUEST:
3459 tf->category = WLAN_CATEGORY_TDLS;
3460 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3461
3462 skb_put(skb, sizeof(tf->u.setup_req));
3463 tf->u.setup_req.dialog_token = dialog_token;
3464 tf->u.setup_req.capability =
3465 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3466
55de908a
JB		 3467 ieee80211_add_srates_ie(sdata, skb, false, band);
3468 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3469 ieee80211_tdls_add_ext_capab(skb);
3470 break;
3471 case WLAN_TDLS_SETUP_RESPONSE:
3472 tf->category = WLAN_CATEGORY_TDLS;
3473 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3474
3475 skb_put(skb, sizeof(tf->u.setup_resp));
3476 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3477 tf->u.setup_resp.dialog_token = dialog_token;
3478 tf->u.setup_resp.capability =
3479 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3480
55de908a
JB		 3481 ieee80211_add_srates_ie(sdata, skb, false, band);
3482 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3483 ieee80211_tdls_add_ext_capab(skb);
3484 break;
3485 case WLAN_TDLS_SETUP_CONFIRM:
3486 tf->category = WLAN_CATEGORY_TDLS;
3487 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3488
3489 skb_put(skb, sizeof(tf->u.setup_cfm));
3490 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3491 tf->u.setup_cfm.dialog_token = dialog_token;
3492 break;
3493 case WLAN_TDLS_TEARDOWN:
3494 tf->category = WLAN_CATEGORY_TDLS;
3495 tf->action_code = WLAN_TDLS_TEARDOWN;
3496
3497 skb_put(skb, sizeof(tf->u.teardown));
3498 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3499 break;
3500 case WLAN_TDLS_DISCOVERY_REQUEST:
3501 tf->category = WLAN_CATEGORY_TDLS;
3502 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3503
3504 skb_put(skb, sizeof(tf->u.discover_req));
3505 tf->u.discover_req.dialog_token = dialog_token;
3506 break;
3507 default:
3508 return -EINVAL;
3509 }
3510
3511 return 0;
3512}
3513
3514static int
3515ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3516 u8 *peer, u8 action_code, u8 dialog_token,
3517 u16 status_code, struct sk_buff *skb)
3518{
3519 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3520 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3521 struct ieee80211_mgmt *mgmt;
3522
3523 mgmt = (void *)skb_put(skb, 24);
3524 memset(mgmt, 0, 24);
3525 memcpy(mgmt->da, peer, ETH_ALEN);
3526 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3527 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3528
3529 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3530 IEEE80211_STYPE_ACTION);
3531
3532 switch (action_code) {
3533 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3534 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3535 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3536 mgmt->u.action.u.tdls_discover_resp.action_code =
3537 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3538 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3539 dialog_token;
3540 mgmt->u.action.u.tdls_discover_resp.capability =
3541 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3542
55de908a
JB		 3543 ieee80211_add_srates_ie(sdata, skb, false, band);
3544 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3545 ieee80211_tdls_add_ext_capab(skb);
3546 break;
3547 default:
3548 return -EINVAL;
3549 }
3550
3551 return 0;
3552}
3553
3554static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3555 u8 *peer, u8 action_code, u8 dialog_token,
3556 u16 status_code, const u8 *extra_ies,
3557 size_t extra_ies_len)
3558{
3559 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3560 struct ieee80211_local *local = sdata->local;
dfe018bf
AN		 3561 struct sk_buff *skb = NULL;
3562 bool send_direct;
3563 int ret;
3564
3565 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3566 return -ENOTSUPP;
3567
3568 /* make sure we are in managed mode, and associated */
3569 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3570 !sdata->u.mgd.associated)
3571 return -EINVAL;
3572
bdcbd8e0
JB		 3573 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3574 action_code, peer);
dfe018bf
AN		 3575
3576 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3577 max(sizeof(struct ieee80211_mgmt),
3578 sizeof(struct ieee80211_tdls_data)) +
3579 50 + /* supported rates */
3580 7 + /* ext capab */
3581 extra_ies_len +
3582 sizeof(struct ieee80211_tdls_lnkie));
3583 if (!skb)
3584 return -ENOMEM;
3585
dfe018bf
AN		 3586 skb_reserve(skb, local->hw.extra_tx_headroom);
3587
3588 switch (action_code) {
3589 case WLAN_TDLS_SETUP_REQUEST:
3590 case WLAN_TDLS_SETUP_RESPONSE:
3591 case WLAN_TDLS_SETUP_CONFIRM:
3592 case WLAN_TDLS_TEARDOWN:
3593 case WLAN_TDLS_DISCOVERY_REQUEST:
3594 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3595 action_code, dialog_token,
3596 status_code, skb);
3597 send_direct = false;
3598 break;
3599 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3600 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3601 dialog_token, status_code,
3602 skb);
3603 send_direct = true;
3604 break;
3605 default:
3606 ret = -ENOTSUPP;
3607 break;
3608 }
3609
3610 if (ret < 0)
3611 goto fail;
3612
3613 if (extra_ies_len)
3614 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3615
3616 /* the TDLS link IE is always added last */
3617 switch (action_code) {
3618 case WLAN_TDLS_SETUP_REQUEST:
3619 case WLAN_TDLS_SETUP_CONFIRM:
3620 case WLAN_TDLS_TEARDOWN:
3621 case WLAN_TDLS_DISCOVERY_REQUEST:
3622 /* we are the initiator */
3623 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3624 sdata->u.mgd.bssid);
3625 break;
3626 case WLAN_TDLS_SETUP_RESPONSE:
3627 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3628 /* we are the responder */
3629 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3630 sdata->u.mgd.bssid);
3631 break;
3632 default:
3633 ret = -ENOTSUPP;
3634 goto fail;
3635 }
3636
3637 if (send_direct) {
3638 ieee80211_tx_skb(sdata, skb);
3639 return 0;
3640 }
3641
3642 /*
3643 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3644 * we should default to AC_VI.
3645 */
3646 switch (action_code) {
3647 case WLAN_TDLS_SETUP_REQUEST:
3648 case WLAN_TDLS_SETUP_RESPONSE:
3649 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3650 skb->priority = 2;
3651 break;
3652 default:
3653 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3654 skb->priority = 5;
3655 break;
3656 }
3657
3658 /* disable bottom halves when entering the Tx path */
3659 local_bh_disable();
3660 ret = ieee80211_subif_start_xmit(skb, dev);
3661 local_bh_enable();
3662
3663 return ret;
3664
3665fail:
3666 dev_kfree_skb(skb);
3667 return ret;
3668}
3669
3670static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3671 u8 *peer, enum nl80211_tdls_operation oper)
3672{
941c93cd 3673 struct sta_info *sta;
dfe018bf
AN		 3674 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3675
3676 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3677 return -ENOTSUPP;
3678
3679 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3680 return -EINVAL;
3681
bdcbd8e0 3682 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
dfe018bf
AN		 3683
3684 switch (oper) {
3685 case NL80211_TDLS_ENABLE_LINK:
941c93cd
AN		 3686 rcu_read_lock();
3687 sta = sta_info_get(sdata, peer);
3688 if (!sta) {
3689 rcu_read_unlock();
3690 return -ENOLINK;
3691 }
3692
c2c98fde 3693 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
941c93cd 3694 rcu_read_unlock();
dfe018bf
AN		 3695 break;
3696 case NL80211_TDLS_DISABLE_LINK:
3697 return sta_info_destroy_addr(sdata, peer);
3698 case NL80211_TDLS_TEARDOWN:
3699 case NL80211_TDLS_SETUP:
3700 case NL80211_TDLS_DISCOVERY_REQ:
3701 /* We don't support in-driver setup/teardown/discovery */
3702 return -ENOTSUPP;
3703 default:
3704 return -ENOTSUPP;
3705 }
3706
3707 return 0;
3708}
3709
06500736
JB		 3710static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3711 const u8 *peer, u64 *cookie)
3712{
3713 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3714 struct ieee80211_local *local = sdata->local;
3715 struct ieee80211_qos_hdr *nullfunc;
3716 struct sk_buff *skb;
3717 int size = sizeof(*nullfunc);
3718 __le16 fc;
3719 bool qos;
3720 struct ieee80211_tx_info *info;
3721 struct sta_info *sta;
55de908a
JB		 3722 struct ieee80211_chanctx_conf *chanctx_conf;
3723 enum ieee80211_band band;
06500736
JB		 3724
3725 rcu_read_lock();
55de908a
JB		 3726 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3727 if (WARN_ON(!chanctx_conf)) {
3728 rcu_read_unlock();
3729 return -EINVAL;
3730 }
4bf88530 3731 band = chanctx_conf->def.chan->band;
03bb7f42 3732 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3733 if (sta) {
06500736 3734 qos = test_sta_flag(sta, WLAN_STA_WME);
b4487c2d
JB		 3735 } else {
3736 rcu_read_unlock();
06500736 3737 return -ENOLINK;
b4487c2d 3738 }
06500736
JB		 3739
3740 if (qos) {
3741 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3742 IEEE80211_STYPE_QOS_NULLFUNC |
3743 IEEE80211_FCTL_FROMDS);
3744 } else {
3745 size -= 2;
3746 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3747 IEEE80211_STYPE_NULLFUNC |
3748 IEEE80211_FCTL_FROMDS);
3749 }
3750
3751 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a
JB		 3752 if (!skb) {
3753 rcu_read_unlock();
06500736 3754 return -ENOMEM;
55de908a 3755 }
06500736
JB		 3756
3757 skb->dev = dev;
3758
3759 skb_reserve(skb, local->hw.extra_tx_headroom);
3760
3761 nullfunc = (void *) skb_put(skb, size);
3762 nullfunc->frame_control = fc;
3763 nullfunc->duration_id = 0;
3764 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3765 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3766 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3767 nullfunc->seq_ctrl = 0;
3768
3769 info = IEEE80211_SKB_CB(skb);
3770
3771 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3772 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3773
3774 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3775 skb->priority = 7;
3776 if (qos)
3777 nullfunc->qos_ctrl = cpu_to_le16(7);
3778
3779 local_bh_disable();
55de908a 3780 ieee80211_xmit(sdata, skb, band);
06500736 3781 local_bh_enable();
55de908a 3782 rcu_read_unlock();
06500736
JB		 3783
3784 *cookie = (unsigned long) skb;
3785 return 0;
3786}
3787
683b6d3b
JB		 3788static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3789 struct wireless_dev *wdev,
3790 struct cfg80211_chan_def *chandef)
5b7ccaf3 3791{
55de908a 3792 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3793 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3794 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3795 int ret = -ENODATA;
55de908a
JB		 3796
3797 rcu_read_lock();
feda3027
JB		 3798 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3799 if (chanctx_conf) {
3800 *chandef = chanctx_conf->def;
3801 ret = 0;
3802 } else if (local->open_count > 0 &&
3803 local->open_count == local->monitors &&
3804 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3805 if (local->use_chanctx)
3806 *chandef = local->monitor_chandef;
3807 else
675a0b04 3808 *chandef = local->_oper_chandef;
683b6d3b 3809 ret = 0;
55de908a
JB		 3810 }
3811 rcu_read_unlock();
5b7ccaf3 3812
683b6d3b 3813 return ret;
5b7ccaf3
JB		 3814}
3815
6d52563f
JB		 3816#ifdef CONFIG_PM
3817static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3818{
3819 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3820}
3821#endif
3822
f0706e82
JB		 3823struct cfg80211_ops mac80211_config_ops = {
3824 .add_virtual_intf = ieee80211_add_iface,
3825 .del_virtual_intf = ieee80211_del_iface,
42613db7 3826 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3827 .start_p2p_device = ieee80211_start_p2p_device,
3828 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3829 .add_key = ieee80211_add_key,
3830 .del_key = ieee80211_del_key,
62da92fb 3831 .get_key = ieee80211_get_key,
e8cbb4cb 3832 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3833 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3834 .start_ap = ieee80211_start_ap,
3835 .change_beacon = ieee80211_change_beacon,
3836 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3837 .add_station = ieee80211_add_station,
3838 .del_station = ieee80211_del_station,
3839 .change_station = ieee80211_change_station,
7bbdd2d9 3840 .get_station = ieee80211_get_station,
c5dd9c2b 3841 .dump_station = ieee80211_dump_station,
1289723e 3842 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3843#ifdef CONFIG_MAC80211_MESH
3844 .add_mpath = ieee80211_add_mpath,
3845 .del_mpath = ieee80211_del_mpath,
3846 .change_mpath = ieee80211_change_mpath,
3847 .get_mpath = ieee80211_get_mpath,
3848 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 3849 .update_mesh_config = ieee80211_update_mesh_config,
3850 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3851 .join_mesh = ieee80211_join_mesh,
3852 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3853#endif
9f1ba906 3854 .change_bss = ieee80211_change_bss,
31888487 3855 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3856 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3857 .suspend = ieee80211_suspend,
3858 .resume = ieee80211_resume,
2a519311 3859 .scan = ieee80211_scan,
79f460ca
LC		 3860 .sched_scan_start = ieee80211_sched_scan_start,
3861 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3862 .auth = ieee80211_auth,
3863 .assoc = ieee80211_assoc,
3864 .deauth = ieee80211_deauth,
3865 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3866 .join_ibss = ieee80211_join_ibss,
3867 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3868 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3869 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3870 .set_tx_power = ieee80211_set_tx_power,
3871 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3872 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3873 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3874 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3875 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3876 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3877 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3878 .remain_on_channel = ieee80211_remain_on_channel,
3879 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3880 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3881 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3882 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3883 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3884 .set_antenna = ieee80211_set_antenna,
3885 .get_antenna = ieee80211_get_antenna,
38c09159
JL		 3886 .set_ringparam = ieee80211_set_ringparam,
3887 .get_ringparam = ieee80211_get_ringparam,
c68f4b89 3888 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3889 .tdls_oper = ieee80211_tdls_oper,
3890 .tdls_mgmt = ieee80211_tdls_mgmt,
06500736 3891 .probe_client = ieee80211_probe_client,
b53be792 3892 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3893#ifdef CONFIG_PM
3894 .set_wakeup = ieee80211_set_wakeup,
3895#endif
b1ab7925
BG		 3896 .get_et_sset_count = ieee80211_get_et_sset_count,
3897 .get_et_stats = ieee80211_get_et_stats,
3898 .get_et_strings = ieee80211_get_et_strings,
5b7ccaf3 3899 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3900 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3901 .channel_switch = ieee80211_channel_switch,
f0706e82 3902};
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