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mac80211: optimise mixed AP/VLAN station removal
[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);
8ceb5955 1101 synchronize_net();
d34ba216 1102 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
7b4396bd 1103 ieee80211_free_keys(vlan);
7b4396bd 1104 ieee80211_free_keys(sdata);
75de9113 1105
d6a83228 1106 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 1107 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 1108 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 1109 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 1110
a6b368f6 1111 if (sdata->wdev.cac_started) {
d2859df5 1112 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 1113 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 1114 cfg80211_cac_event(sdata->dev, &chandef,
1115 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 1116 GFP_KERNEL);
1117 }
1118
1041638f
JB		 1119 drv_stop_ap(sdata->local, sdata);
1120
7b20b8e8
JB		 1121 /* free all potentially still buffered bcast frames */
1122 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1123 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1124
1f4ac5a6 1125 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a
JB		 1126 ieee80211_vif_release_channel(sdata);
1127
2d0ddec5 1128 return 0;
5dfdaf58
JB		 1129}
1130
4fd6931e
JB		 1131/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1132struct iapp_layer2_update {
1133 u8 da[ETH_ALEN]; /* broadcast */
1134 u8 sa[ETH_ALEN]; /* STA addr */
1135 __be16 len; /* 6 */
1136 u8 dsap; /* 0 */
1137 u8 ssap; /* 0 */
1138 u8 control;
1139 u8 xid_info[3];
bc10502d 1140} __packed;
4fd6931e
JB		 1141
1142static void ieee80211_send_layer2_update(struct sta_info *sta)
1143{
1144 struct iapp_layer2_update *msg;
1145 struct sk_buff *skb;
1146
1147 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1148 * bridge devices */
1149
1150 skb = dev_alloc_skb(sizeof(*msg));
1151 if (!skb)
1152 return;
1153 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1154
1155 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1156 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1157
e83e6541 1158 eth_broadcast_addr(msg->da);
17741cdc 1159 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 1160 msg->len = htons(6);
1161 msg->dsap = 0;
1162 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1163 msg->control = 0xaf; /* XID response lsb.1111F101.
1164 * F=0 (no poll command; unsolicited frame) */
1165 msg->xid_info[0] = 0x81; /* XID format identifier */
1166 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1167 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1168
d0709a65
JB		 1169 skb->dev = sta->sdata->dev;
1170 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 1171 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 1172 netif_rx_ni(skb);
4fd6931e
JB		 1173}
1174
d582cffb
JB		 1175static int sta_apply_auth_flags(struct ieee80211_local *local,
1176 struct sta_info *sta,
1177 u32 mask, u32 set)
1178{
1179 int ret;
1180
1181 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1182 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1183 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1184 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1185 if (ret)
1186 return ret;
1187 }
1188
1189 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1190 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1191 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1192 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1193 if (ret)
1194 return ret;
1195 }
1196
1197 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1198 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1199 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1200 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1201 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1202 else
1203 ret = 0;
1204 if (ret)
1205 return ret;
1206 }
1207
1208 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1209 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1210 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1211 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1212 if (ret)
1213 return ret;
1214 }
1215
1216 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1217 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1218 test_sta_flag(sta, WLAN_STA_AUTH)) {
1219 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1220 if (ret)
1221 return ret;
1222 }
1223
1224 return 0;
1225}
1226
d9a7ddb0
JB		 1227static int sta_apply_parameters(struct ieee80211_local *local,
1228 struct sta_info *sta,
1229 struct station_parameters *params)
4fd6931e 1230{
d9a7ddb0 1231 int ret = 0;
8318d78a 1232 struct ieee80211_supported_band *sband;
d0709a65 1233 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 1234 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1235 u32 mask, set;
4fd6931e 1236
55de908a 1237 sband = local->hw.wiphy->bands[band];
ae5eb026 1238
eccb8e8f
JB		 1239 mask = params->sta_flags_mask;
1240 set = params->sta_flags_set;
73651ee6 1241
d582cffb
JB		 1242 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1243 /*
1244 * In mesh mode, ASSOCIATED isn't part of the nl80211
1245 * API but must follow AUTHENTICATED for driver state.
1246 */
1247 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1248 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1249 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1250 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1251 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1252 /*
1253 * TDLS -- everything follows authorized, but
1254 * only becoming authorized is possible, not
1255 * going back
1256 */
1257 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1258 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1259 BIT(NL80211_STA_FLAG_ASSOCIATED);
1260 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1261 BIT(NL80211_STA_FLAG_ASSOCIATED);
1262 }
eccb8e8f 1263 }
4fd6931e 1264
d582cffb
JB		 1265 ret = sta_apply_auth_flags(local, sta, mask, set);
1266 if (ret)
1267 return ret;
d9a7ddb0 1268
eccb8e8f 1269 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1270 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1271 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1272 else
1273 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1274 }
4fd6931e 1275
eccb8e8f 1276 if (mask & BIT(NL80211_STA_FLAG_WME)) {
39df600a 1277 if (set & BIT(NL80211_STA_FLAG_WME)) {
c2c98fde 1278 set_sta_flag(sta, WLAN_STA_WME);
39df600a 1279 sta->sta.wme = true;
c2c98fde
JB		 1280 } else {
1281 clear_sta_flag(sta, WLAN_STA_WME);
1282 sta->sta.wme = false;
39df600a 1283 }
eccb8e8f 1284 }
5394af4d 1285
eccb8e8f 1286 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1287 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1288 set_sta_flag(sta, WLAN_STA_MFP);
1289 else
1290 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1291 }
b39c48fa 1292
07ba55d7 1293 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1294 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1295 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1296 else
1297 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1298 }
4fd6931e 1299
3b9ce80c
JB		 1300 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1301 sta->sta.uapsd_queues = params->uapsd_queues;
1302 sta->sta.max_sp = params->max_sp;
1303 }
9533b4ac 1304
51b50fbe
JB		 1305 /*
1306 * cfg80211 validates this (1-2007) and allows setting the AID
1307 * only when creating a new station entry
1308 */
1309 if (params->aid)
1310 sta->sta.aid = params->aid;
1311
73651ee6 1312 /*
ba23d206
JB		 1313 * Some of the following updates would be racy if called on an
1314 * existing station, via ieee80211_change_station(). However,
1315 * all such changes are rejected by cfg80211 except for updates
1316 * changing the supported rates on an existing but not yet used
1317 * TDLS peer.
73651ee6
JB		 1318 */
1319
4fd6931e
JB		 1320 if (params->listen_interval >= 0)
1321 sta->listen_interval = params->listen_interval;
1322
1323 if (params->supported_rates) {
2103dec1
SW		 1324 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1325 sband, params->supported_rates,
1326 params->supported_rates_len,
1327 &sta->sta.supp_rates[band]);
4fd6931e 1328 }
c5dd9c2b 1329
d9fe60de 1330 if (params->ht_capa)
ef96a842 1331 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1332 params->ht_capa, sta);
36aedc90 1333
f461be3e
MP		 1334 if (params->vht_capa)
1335 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1336 params->vht_capa, sta);
f461be3e 1337
9c3990aa 1338 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1339#ifdef CONFIG_MAC80211_MESH
39886b61 1340 u32 changed = 0;
77ee7c89
JB		 1341
1342 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1343 switch (params->plink_state) {
57cf8043 1344 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1345 if (sta->plink_state != NL80211_PLINK_ESTAB)
1346 changed = mesh_plink_inc_estab_count(
1347 sdata);
1348 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1349
1350 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1351 changed |= ieee80211_mps_set_sta_local_pm(sta,
1352 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1353 break;
1354 case NL80211_PLINK_LISTEN:
57cf8043 1355 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1356 case NL80211_PLINK_OPN_SNT:
1357 case NL80211_PLINK_OPN_RCVD:
1358 case NL80211_PLINK_CNF_RCVD:
1359 case NL80211_PLINK_HOLDING:
1360 if (sta->plink_state == NL80211_PLINK_ESTAB)
1361 changed = mesh_plink_dec_estab_count(
1362 sdata);
9c3990aa 1363 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1364
1365 ieee80211_mps_sta_status_update(sta);
446075d7
MP		 1366 changed |= ieee80211_mps_set_sta_local_pm(sta,
1367 NL80211_MESH_POWER_UNKNOWN);
9c3990aa
JC		 1368 break;
1369 default:
1370 /* nothing */
1371 break;
1372 }
77ee7c89
JB		 1373 }
1374
1375 switch (params->plink_action) {
1376 case NL80211_PLINK_ACTION_NO_ACTION:
1377 /* nothing */
1378 break;
1379 case NL80211_PLINK_ACTION_OPEN:
1380 changed |= mesh_plink_open(sta);
1381 break;
1382 case NL80211_PLINK_ACTION_BLOCK:
1383 changed |= mesh_plink_block(sta);
1384 break;
1617bab8 1385 }
3f52b7e3
MP		 1386
1387 if (params->local_pm)
39886b61
TP		 1388 changed |=
1389 ieee80211_mps_set_sta_local_pm(sta,
1390 params->local_pm);
6c751ef8 1391 ieee80211_mbss_info_change_notify(sdata, changed);
4daf50f2 1392#endif
902acc78 1393 }
d9a7ddb0
JB		 1394
1395 return 0;
4fd6931e
JB		 1396}
1397
1398static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1399 u8 *mac, struct station_parameters *params)
1400{
14db74bc 1401 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1402 struct sta_info *sta;
1403 struct ieee80211_sub_if_data *sdata;
73651ee6 1404 int err;
b8d476c8 1405 int layer2_update;
4fd6931e 1406
4fd6931e
JB		 1407 if (params->vlan) {
1408 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1409
05c914fe
JB		 1410 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1411 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1412 return -EINVAL;
1413 } else
1414 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1415
b203ca39 1416 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1417 return -EINVAL;
1418
1419 if (is_multicast_ether_addr(mac))
1420 return -EINVAL;
1421
1422 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1423 if (!sta)
1424 return -ENOMEM;
4fd6931e 1425
d582cffb
JB		 1426 /*
1427 * defaults -- if userspace wants something else we'll
1428 * change it accordingly in sta_apply_parameters()
1429 */
77ee7c89
JB		 1430 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1431 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1432 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1433 }
4fd6931e 1434
d9a7ddb0
JB		 1435 err = sta_apply_parameters(local, sta, params);
1436 if (err) {
1437 sta_info_free(local, sta);
1438 return err;
1439 }
4fd6931e 1440
d64cf63e 1441 /*
77ee7c89
JB		 1442 * for TDLS, rate control should be initialized only when
1443 * rates are known and station is marked authorized
d64cf63e
AN		 1444 */
1445 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1446 rate_control_rate_init(sta);
4fd6931e 1447
b8d476c8
JM		 1448 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1449 sdata->vif.type == NL80211_IFTYPE_AP;
1450
34e89507 1451 err = sta_info_insert_rcu(sta);
73651ee6 1452 if (err) {
73651ee6
JB		 1453 rcu_read_unlock();
1454 return err;
1455 }
1456
b8d476c8 1457 if (layer2_update)
73651ee6
JB		 1458 ieee80211_send_layer2_update(sta);
1459
1460 rcu_read_unlock();
1461
4fd6931e
JB		 1462 return 0;
1463}
1464
1465static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1466 u8 *mac)
1467{
14db74bc 1468 struct ieee80211_sub_if_data *sdata;
4fd6931e 1469
14db74bc
JB		 1470 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1471
34e89507
JB		 1472 if (mac)
1473 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 1474
b998e8bb 1475 sta_info_flush(sdata);
4fd6931e
JB		 1476 return 0;
1477}
1478
1479static int ieee80211_change_station(struct wiphy *wiphy,
77ee7c89 1480 struct net_device *dev, u8 *mac,
4fd6931e
JB		 1481 struct station_parameters *params)
1482{
abe60632 1483 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1484 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1485 struct sta_info *sta;
1486 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1487 enum cfg80211_station_type statype;
35b88623 1488 int err;
4fd6931e 1489
87be1e1e 1490 mutex_lock(&local->sta_mtx);
98dd6a57 1491
0e5ded5a 1492 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1493 if (!sta) {
77ee7c89
JB		 1494 err = -ENOENT;
1495 goto out_err;
98dd6a57 1496 }
4fd6931e 1497
77ee7c89
JB		 1498 switch (sdata->vif.type) {
1499 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1500 if (sdata->u.mesh.user_mpm)
eef941e6 1501 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1502 else
eef941e6 1503 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1504 break;
1505 case NL80211_IFTYPE_ADHOC:
1506 statype = CFG80211_STA_IBSS;
1507 break;
1508 case NL80211_IFTYPE_STATION:
1509 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1510 statype = CFG80211_STA_AP_STA;
1511 break;
1512 }
1513 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1514 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1515 else
1516 statype = CFG80211_STA_TDLS_PEER_SETUP;
1517 break;
1518 case NL80211_IFTYPE_AP:
1519 case NL80211_IFTYPE_AP_VLAN:
1520 statype = CFG80211_STA_AP_CLIENT;
1521 break;
1522 default:
1523 err = -EOPNOTSUPP;
1524 goto out_err;
bdd90d5e
JB		 1525 }
1526
77ee7c89
JB		 1527 err = cfg80211_check_station_change(wiphy, params, statype);
1528 if (err)
1529 goto out_err;
1530
d0709a65 1531 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1532 bool prev_4addr = false;
1533 bool new_4addr = false;
1534
4fd6931e
JB		 1535 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1536
9bc383de 1537 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1538 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1539 err = -EBUSY;
1540 goto out_err;
3305443c 1541 }
f14543ee 1542
cf778b00 1543 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1544 new_4addr = true;
1545 }
1546
1547 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1548 sta->sdata->u.vlan.sta) {
1549 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1550 prev_4addr = true;
f14543ee
FF		 1551 }
1552
14db74bc 1553 sta->sdata = vlansdata;
7e3ed02c
FF		 1554
1555 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1556 prev_4addr != new_4addr) {
1557 if (new_4addr)
1558 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1559 else
1560 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1561 }
1562
4fd6931e
JB		 1563 ieee80211_send_layer2_update(sta);
1564 }
1565
35b88623 1566 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1567 if (err)
1568 goto out_err;
4fd6931e 1569
77ee7c89
JB		 1570 /* When peer becomes authorized, init rate control as well */
1571 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1572 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
d64cf63e
AN		 1573 rate_control_rate_init(sta);
1574
87be1e1e 1575 mutex_unlock(&local->sta_mtx);
98dd6a57 1576
687da132
EG		 1577 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1578 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1579 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1580 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1581 sta_info_tx_streams(sta) != 1) {
1582 ht_dbg(sta->sdata,
1583 "%pM just authorized and MIMO capable - update SMPS\n",
1584 sta->sta.addr);
1585 ieee80211_send_smps_action(sta->sdata,
1586 sta->sdata->bss->req_smps,
1587 sta->sta.addr,
1588 sta->sdata->vif.bss_conf.bssid);
1589 }
1590
808118cb 1591 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1592 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1593 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1594 ieee80211_recalc_ps_vif(sdata);
1595 }
77ee7c89 1596
4fd6931e 1597 return 0;
77ee7c89
JB		 1598out_err:
1599 mutex_unlock(&local->sta_mtx);
1600 return err;
4fd6931e
JB		 1601}
1602
c5dd9c2b
LCC		 1603#ifdef CONFIG_MAC80211_MESH
1604static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1605 u8 *dst, u8 *next_hop)
1606{
14db74bc 1607 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1608 struct mesh_path *mpath;
1609 struct sta_info *sta;
c5dd9c2b 1610
14db74bc
JB		 1611 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1612
d0709a65 1613 rcu_read_lock();
abe60632 1614 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1615 if (!sta) {
1616 rcu_read_unlock();
c5dd9c2b 1617 return -ENOENT;
d0709a65 1618 }
c5dd9c2b 1619
ae76eef0
BC		 1620 mpath = mesh_path_add(sdata, dst);
1621 if (IS_ERR(mpath)) {
d0709a65 1622 rcu_read_unlock();
ae76eef0 1623 return PTR_ERR(mpath);
d0709a65 1624 }
c5dd9c2b 1625
c5dd9c2b 1626 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1627
c5dd9c2b
LCC		 1628 rcu_read_unlock();
1629 return 0;
1630}
1631
1632static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
bf7cd94d 1633 u8 *dst)
c5dd9c2b 1634{
f698d856
JBG		 1635 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1636
c5dd9c2b 1637 if (dst)
bf7cd94d 1638 return mesh_path_del(sdata, dst);
c5dd9c2b 1639
ece1a2e7 1640 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1641 return 0;
1642}
1643
1644static int ieee80211_change_mpath(struct wiphy *wiphy,
1645 struct net_device *dev,
1646 u8 *dst, u8 *next_hop)
1647{
14db74bc 1648 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1649 struct mesh_path *mpath;
1650 struct sta_info *sta;
1651
14db74bc
JB		 1652 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1653
d0709a65
JB		 1654 rcu_read_lock();
1655
abe60632 1656 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1657 if (!sta) {
1658 rcu_read_unlock();
c5dd9c2b 1659 return -ENOENT;
d0709a65 1660 }
c5dd9c2b 1661
bf7cd94d 1662 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1663 if (!mpath) {
1664 rcu_read_unlock();
c5dd9c2b
LCC		 1665 return -ENOENT;
1666 }
1667
1668 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1669
c5dd9c2b
LCC		 1670 rcu_read_unlock();
1671 return 0;
1672}
1673
1674static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1675 struct mpath_info *pinfo)
1676{
a3836e02
JB		 1677 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1678
1679 if (next_hop_sta)
1680 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1681 else
1682 memset(next_hop, 0, ETH_ALEN);
1683
7ce8c7a3
LAYS		 1684 memset(pinfo, 0, sizeof(*pinfo));
1685
f5ea9120
JB		 1686 pinfo->generation = mesh_paths_generation;
1687
c5dd9c2b 1688 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1689 MPATH_INFO_SN |
c5dd9c2b
LCC		 1690 MPATH_INFO_METRIC |
1691 MPATH_INFO_EXPTIME |
1692 MPATH_INFO_DISCOVERY_TIMEOUT |
1693 MPATH_INFO_DISCOVERY_RETRIES |
1694 MPATH_INFO_FLAGS;
1695
1696 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1697 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1698 pinfo->metric = mpath->metric;
1699 if (time_before(jiffies, mpath->exp_time))
1700 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1701 pinfo->discovery_timeout =
1702 jiffies_to_msecs(mpath->discovery_timeout);
1703 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1704 if (mpath->flags & MESH_PATH_ACTIVE)
1705 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1706 if (mpath->flags & MESH_PATH_RESOLVING)
1707 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1708 if (mpath->flags & MESH_PATH_SN_VALID)
1709 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1710 if (mpath->flags & MESH_PATH_FIXED)
1711 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1712 if (mpath->flags & MESH_PATH_RESOLVED)
1713 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1714}
1715
1716static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1717 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1718
1719{
14db74bc 1720 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1721 struct mesh_path *mpath;
1722
14db74bc
JB		 1723 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1724
c5dd9c2b 1725 rcu_read_lock();
bf7cd94d 1726 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1727 if (!mpath) {
1728 rcu_read_unlock();
1729 return -ENOENT;
1730 }
1731 memcpy(dst, mpath->dst, ETH_ALEN);
1732 mpath_set_pinfo(mpath, next_hop, pinfo);
1733 rcu_read_unlock();
1734 return 0;
1735}
1736
1737static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1738 int idx, u8 *dst, u8 *next_hop,
1739 struct mpath_info *pinfo)
1740{
14db74bc 1741 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1742 struct mesh_path *mpath;
1743
14db74bc
JB		 1744 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1745
c5dd9c2b 1746 rcu_read_lock();
bf7cd94d 1747 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1748 if (!mpath) {
1749 rcu_read_unlock();
1750 return -ENOENT;
1751 }
1752 memcpy(dst, mpath->dst, ETH_ALEN);
1753 mpath_set_pinfo(mpath, next_hop, pinfo);
1754 rcu_read_unlock();
1755 return 0;
1756}
93da9cc1 1757
24bdd9f4 1758static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1759 struct net_device *dev,
1760 struct mesh_config *conf)
1761{
1762 struct ieee80211_sub_if_data *sdata;
1763 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1764
93da9cc1 1765 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1766 return 0;
1767}
1768
1769static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1770{
1771 return (mask >> (parm-1)) & 0x1;
1772}
1773
c80d545d
JC		 1774static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1775 const struct mesh_setup *setup)
1776{
1777 u8 *new_ie;
1778 const u8 *old_ie;
4bb62344
CYY		 1779 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1780 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1781
581a8b0f 1782 /* allocate information elements */
c80d545d 1783 new_ie = NULL;
581a8b0f 1784 old_ie = ifmsh->ie;
c80d545d 1785
581a8b0f
JC		 1786 if (setup->ie_len) {
1787 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1788 GFP_KERNEL);
1789 if (!new_ie)
1790 return -ENOMEM;
1791 }
581a8b0f
JC		 1792 ifmsh->ie_len = setup->ie_len;
1793 ifmsh->ie = new_ie;
1794 kfree(old_ie);
c80d545d
JC		 1795
1796 /* now copy the rest of the setup parameters */
1797 ifmsh->mesh_id_len = setup->mesh_id_len;
1798 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1799 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1800 ifmsh->mesh_pp_id = setup->path_sel_proto;
1801 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1802 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1803 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1804 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1805 if (setup->is_authenticated)
1806 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1807 if (setup->is_secure)
1808 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1809
4bb62344
CYY		 1810 /* mcast rate setting in Mesh Node */
1811 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1812 sizeof(setup->mcast_rate));
ffb3cf30 1813 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1814
9bdbf04d
MP		 1815 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1816 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1817
c80d545d
JC		 1818 return 0;
1819}
1820
24bdd9f4 1821static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1822 struct net_device *dev, u32 mask,
1823 const struct mesh_config *nconf)
93da9cc1 1824{
1825 struct mesh_config *conf;
1826 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1827 struct ieee80211_if_mesh *ifmsh;
1828
93da9cc1 1829 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1830 ifmsh = &sdata->u.mesh;
93da9cc1 1831
93da9cc1 1832 /* Set the config options which we are interested in setting */
1833 conf = &(sdata->u.mesh.mshcfg);
1834 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1835 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1836 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1837 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1838 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1839 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1840 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1841 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1842 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1843 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1844 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1845 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1846 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1847 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1848 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1849 if (ifmsh->user_mpm)
1850 return -EBUSY;
93da9cc1 1851 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1852 }
d299a1f2
JC		 1853 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1854 conf->dot11MeshNbrOffsetMaxNeighbor =
1855 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1856 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1857 conf->dot11MeshHWMPmaxPREQretries =
1858 nconf->dot11MeshHWMPmaxPREQretries;
1859 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1860 conf->path_refresh_time = nconf->path_refresh_time;
1861 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1862 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1863 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1864 conf->dot11MeshHWMPactivePathTimeout =
1865 nconf->dot11MeshHWMPactivePathTimeout;
1866 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1867 conf->dot11MeshHWMPpreqMinInterval =
1868 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1869 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1870 conf->dot11MeshHWMPperrMinInterval =
1871 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1872 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1873 mask))
1874 conf->dot11MeshHWMPnetDiameterTraversalTime =
1875 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1876 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1877 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1878 ieee80211_mesh_root_setup(ifmsh);
1879 }
16dd7267 1880 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1881 /* our current gate announcement implementation rides on root
1882 * announcements, so require this ifmsh to also be a root node
1883 * */
1884 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1885 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1886 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1887 ieee80211_mesh_root_setup(ifmsh);
1888 }
16dd7267
JC		 1889 conf->dot11MeshGateAnnouncementProtocol =
1890 nconf->dot11MeshGateAnnouncementProtocol;
1891 }
a4f606ea 1892 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1893 conf->dot11MeshHWMPRannInterval =
1894 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1895 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1896 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1897 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1898 /* our RSSI threshold implementation is supported only for
1899 * devices that report signal in dBm.
1900 */
1901 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1902 return -ENOTSUPP;
1903 conf->rssi_threshold = nconf->rssi_threshold;
1904 }
70c33eaa
AN		 1905 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1906 conf->ht_opmode = nconf->ht_opmode;
1907 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1908 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1909 }
ac1073a6
CYY		 1910 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1911 conf->dot11MeshHWMPactivePathToRootTimeout =
1912 nconf->dot11MeshHWMPactivePathToRootTimeout;
1913 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1914 conf->dot11MeshHWMProotInterval =
1915 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1916 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1917 conf->dot11MeshHWMPconfirmationInterval =
1918 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1919 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1920 conf->power_mode = nconf->power_mode;
1921 ieee80211_mps_local_status_update(sdata);
1922 }
2b5e1967 1923 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1924 conf->dot11MeshAwakeWindowDuration =
1925 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1926 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1927 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1928 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1929 return 0;
1930}
1931
29cbe68c
JB		 1932static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1933 const struct mesh_config *conf,
1934 const struct mesh_setup *setup)
1935{
1936 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1937 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1938 int err;
29cbe68c 1939
c80d545d
JC		 1940 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1941 err = copy_mesh_setup(ifmsh, setup);
1942 if (err)
1943 return err;
cc1d2806 1944
04ecd257
JB		 1945 /* can mesh use other SMPS modes? */
1946 sdata->smps_mode = IEEE80211_SMPS_OFF;
1947 sdata->needed_rx_chains = sdata->local->rx_chains;
1948
4bf88530 1949 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1950 IEEE80211_CHANCTX_SHARED);
cc1d2806
JB		 1951 if (err)
1952 return err;
1953
2b5e1967 1954 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1955}
1956
1957static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1958{
1959 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1960
1961 ieee80211_stop_mesh(sdata);
55de908a 1962 ieee80211_vif_release_channel(sdata);
29cbe68c
JB		 1963
1964 return 0;
1965}
c5dd9c2b
LCC		 1966#endif
1967
9f1ba906
JM		 1968static int ieee80211_change_bss(struct wiphy *wiphy,
1969 struct net_device *dev,
1970 struct bss_parameters *params)
1971{
55de908a
JB		 1972 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1973 enum ieee80211_band band;
9f1ba906
JM		 1974 u32 changed = 0;
1975
7ca133bc 1976 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1977 return -ENOENT;
1978
1979 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1980
9f1ba906 1981 if (params->use_cts_prot >= 0) {
bda3933a 1982 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1983 changed |= BSS_CHANGED_ERP_CTS_PROT;
1984 }
1985 if (params->use_short_preamble >= 0) {
bda3933a 1986 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1987 params->use_short_preamble;
1988 changed |= BSS_CHANGED_ERP_PREAMBLE;
1989 }
43d35343
FF		 1990
1991 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1992 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1993 sdata->vif.bss_conf.use_short_slot = true;
1994 changed |= BSS_CHANGED_ERP_SLOT;
1995 }
1996
9f1ba906 1997 if (params->use_short_slot_time >= 0) {
bda3933a 1998 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1999 params->use_short_slot_time;
2000 changed |= BSS_CHANGED_ERP_SLOT;
2001 }
2002
90c97a04 2003 if (params->basic_rates) {
2103dec1
SW		 2004 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2005 wiphy->bands[band],
2006 params->basic_rates,
2007 params->basic_rates_len,
2008 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 2009 changed |= BSS_CHANGED_BASIC_RATES;
2010 }
2011
7b7b5e56
FF		 2012 if (params->ap_isolate >= 0) {
2013 if (params->ap_isolate)
2014 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2015 else
2016 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2017 }
2018
80d7e403
HS		 2019 if (params->ht_opmode >= 0) {
2020 sdata->vif.bss_conf.ht_operation_mode =
2021 (u16) params->ht_opmode;
2022 changed |= BSS_CHANGED_HT;
2023 }
2024
339afbf4 2025 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 2026 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2027 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2028 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2029 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 2030 changed |= BSS_CHANGED_P2P_PS;
2031 }
2032
67baf663
JD		 2033 if (params->p2p_opp_ps > 0) {
2034 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2035 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2036 changed |= BSS_CHANGED_P2P_PS;
2037 } else if (params->p2p_opp_ps == 0) {
2038 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2039 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 2040 changed |= BSS_CHANGED_P2P_PS;
2041 }
2042
9f1ba906
JM		 2043 ieee80211_bss_info_change_notify(sdata, changed);
2044
2045 return 0;
2046}
2047
31888487 2048static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 2049 struct net_device *dev,
31888487
JM		 2050 struct ieee80211_txq_params *params)
2051{
2052 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 2053 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 2054 struct ieee80211_tx_queue_params p;
2055
2056 if (!local->ops->conf_tx)
2057 return -EOPNOTSUPP;
2058
54bcbc69
JB		 2059 if (local->hw.queues < IEEE80211_NUM_ACS)
2060 return -EOPNOTSUPP;
2061
31888487
JM		 2062 memset(&p, 0, sizeof(p));
2063 p.aifs = params->aifs;
2064 p.cw_max = params->cwmax;
2065 p.cw_min = params->cwmin;
2066 p.txop = params->txop;
ab13315a
KV		 2067
2068 /*
2069 * Setting tx queue params disables u-apsd because it's only
2070 * called in master mode.
2071 */
2072 p.uapsd = false;
2073
a3304b0a
JB		 2074 sdata->tx_conf[params->ac] = p;
2075 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 2076 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 2077 "failed to set TX queue parameters for AC %d\n",
2078 params->ac);
31888487
JM		 2079 return -EINVAL;
2080 }
2081
7d25745d
JB		 2082 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2083
31888487
JM		 2084 return 0;
2085}
2086
665af4fc 2087#ifdef CONFIG_PM
ff1b6e69
JB		 2088static int ieee80211_suspend(struct wiphy *wiphy,
2089 struct cfg80211_wowlan *wowlan)
665af4fc 2090{
eecc4800 2091 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 2092}
2093
2094static int ieee80211_resume(struct wiphy *wiphy)
2095{
2096 return __ieee80211_resume(wiphy_priv(wiphy));
2097}
2098#else
2099#define ieee80211_suspend NULL
2100#define ieee80211_resume NULL
2101#endif
2102
2a519311 2103static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 2104 struct cfg80211_scan_request *req)
2105{
fd014284
JB		 2106 struct ieee80211_sub_if_data *sdata;
2107
2108 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 2109
2ca27bcf
JB		 2110 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2111 case NL80211_IFTYPE_STATION:
2112 case NL80211_IFTYPE_ADHOC:
2113 case NL80211_IFTYPE_MESH_POINT:
2114 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 2115 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 2116 break;
2117 case NL80211_IFTYPE_P2P_GO:
2118 if (sdata->local->ops->hw_scan)
2119 break;
e9d7732e
JB		 2120 /*
2121 * FIXME: implement NoA while scanning in software,
2122 * for now fall through to allow scanning only when
2123 * beaconing hasn't been configured yet
2124 */
2ca27bcf 2125 case NL80211_IFTYPE_AP:
5c95b940
AQ		 2126 /*
2127 * If the scan has been forced (and the driver supports
2128 * forcing), don't care about being beaconing already.
2129 * This will create problems to the attached stations (e.g. all
2130 * the frames sent while scanning on other channel will be
2131 * lost)
2132 */
2133 if (sdata->u.ap.beacon &&
2134 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2135 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2136 return -EOPNOTSUPP;
2137 break;
2138 default:
2139 return -EOPNOTSUPP;
2140 }
2a519311
JB		 2141
2142 return ieee80211_request_scan(sdata, req);
2143}
2144
79f460ca
LC		 2145static int
2146ieee80211_sched_scan_start(struct wiphy *wiphy,
2147 struct net_device *dev,
2148 struct cfg80211_sched_scan_request *req)
2149{
2150 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2151
2152 if (!sdata->local->ops->sched_scan_start)
2153 return -EOPNOTSUPP;
2154
2155 return ieee80211_request_sched_scan_start(sdata, req);
2156}
2157
2158static int
85a9994a 2159ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 2160{
2161 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2162
2163 if (!sdata->local->ops->sched_scan_stop)
2164 return -EOPNOTSUPP;
2165
85a9994a 2166 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 2167}
2168
636a5d36
JM		 2169static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2170 struct cfg80211_auth_request *req)
2171{
77fdaa12 2172 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2173}
2174
2175static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2176 struct cfg80211_assoc_request *req)
2177{
77fdaa12 2178 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2179}
2180
2181static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2182 struct cfg80211_deauth_request *req)
636a5d36 2183{
63c9c5e7 2184 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2185}
2186
2187static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2188 struct cfg80211_disassoc_request *req)
636a5d36 2189{
63c9c5e7 2190 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2191}
2192
af8cdcd8
JB		 2193static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2194 struct cfg80211_ibss_params *params)
2195{
55de908a 2196 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2197}
2198
2199static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2200{
55de908a 2201 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2202}
2203
391e53e3
AQ		 2204static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2205 int rate[IEEE80211_NUM_BANDS])
2206{
2207 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2208
9887dbf5
CD		 2209 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2210 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 2211
2212 return 0;
2213}
2214
b9a5f8ca
JM		 2215static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2216{
2217 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2218 int err;
b9a5f8ca 2219
f23a4780
AN		 2220 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2221 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2222
2223 if (err)
2224 return err;
2225 }
2226
310bc676
LT		 2227 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2228 err = drv_set_coverage_class(local, wiphy->coverage_class);
2229
2230 if (err)
2231 return err;
2232 }
2233
b9a5f8ca 2234 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2235 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2236
24487981
JB		 2237 if (err)
2238 return err;
b9a5f8ca
JM		 2239 }
2240
8bc83c24
JB		 2241 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2242 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2243 return -EINVAL;
b9a5f8ca 2244 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2245 }
2246 if (changed & WIPHY_PARAM_RETRY_LONG) {
2247 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2248 return -EINVAL;
b9a5f8ca 2249 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2250 }
b9a5f8ca
JM		 2251 if (changed &
2252 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2253 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2254
2255 return 0;
2256}
2257
7643a2c3 2258static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2259 struct wireless_dev *wdev,
fa61cf70 2260 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2261{
2262 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2263 struct ieee80211_sub_if_data *sdata;
7643a2c3 2264
1ea6f9c0
JB		 2265 if (wdev) {
2266 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2267
2268 switch (type) {
2269 case NL80211_TX_POWER_AUTOMATIC:
2270 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2271 break;
2272 case NL80211_TX_POWER_LIMITED:
2273 case NL80211_TX_POWER_FIXED:
2274 if (mbm < 0 || (mbm % 100))
2275 return -EOPNOTSUPP;
2276 sdata->user_power_level = MBM_TO_DBM(mbm);
2277 break;
2278 }
2279
2280 ieee80211_recalc_txpower(sdata);
2281
2282 return 0;
2283 }
55de908a 2284
7643a2c3 2285 switch (type) {
fa61cf70 2286 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2287 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
7643a2c3 2288 break;
fa61cf70 2289 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2290 case NL80211_TX_POWER_FIXED:
2291 if (mbm < 0 || (mbm % 100))
2292 return -EOPNOTSUPP;
fa61cf70 2293 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2294 break;
7643a2c3
JB		 2295 }
2296
1ea6f9c0
JB		 2297 mutex_lock(&local->iflist_mtx);
2298 list_for_each_entry(sdata, &local->interfaces, list)
2299 sdata->user_power_level = local->user_power_level;
2300 list_for_each_entry(sdata, &local->interfaces, list)
2301 ieee80211_recalc_txpower(sdata);
2302 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2303
2304 return 0;
2305}
2306
c8442118
JB		 2307static int ieee80211_get_tx_power(struct wiphy *wiphy,
2308 struct wireless_dev *wdev,
2309 int *dbm)
7643a2c3
JB		 2310{
2311 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2312 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2313
1ea6f9c0
JB		 2314 if (!local->use_chanctx)
2315 *dbm = local->hw.conf.power_level;
2316 else
2317 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2318
7643a2c3
JB		 2319 return 0;
2320}
2321
ab737a4f 2322static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2323 const u8 *addr)
ab737a4f
JB		 2324{
2325 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2326
2327 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2328
2329 return 0;
2330}
2331
1f87f7d3
JB		 2332static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2333{
2334 struct ieee80211_local *local = wiphy_priv(wiphy);
2335
2336 drv_rfkill_poll(local);
2337}
2338
aff89a9b 2339#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2340static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2341 struct wireless_dev *wdev,
2342 void *data, int len)
aff89a9b
JB		 2343{
2344 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2345 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2346
2347 if (!local->ops->testmode_cmd)
2348 return -EOPNOTSUPP;
2349
52981cd7
DS		 2350 if (wdev) {
2351 struct ieee80211_sub_if_data *sdata;
2352
2353 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2354 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2355 vif = &sdata->vif;
2356 }
2357
2358 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2359}
71063f0e
WYG		 2360
2361static int ieee80211_testmode_dump(struct wiphy *wiphy,
2362 struct sk_buff *skb,
2363 struct netlink_callback *cb,
2364 void *data, int len)
2365{
2366 struct ieee80211_local *local = wiphy_priv(wiphy);
2367
2368 if (!local->ops->testmode_dump)
2369 return -EOPNOTSUPP;
2370
2371 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2372}
aff89a9b
JB		 2373#endif
2374
687da132
EG		 2375int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2376 enum ieee80211_smps_mode smps_mode)
2377{
2378 struct sta_info *sta;
2379 enum ieee80211_smps_mode old_req;
2380 int i;
2381
2382 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2383 return -EINVAL;
2384
2385 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2386 return 0;
2387
2388 old_req = sdata->u.ap.req_smps;
2389 sdata->u.ap.req_smps = smps_mode;
2390
2391 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2392 if (old_req == smps_mode ||
2393 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2394 return 0;
2395
2396 /* If no associated stations, there's no need to do anything */
2397 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2398 sdata->smps_mode = smps_mode;
2399 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2400 return 0;
2401 }
2402
2403 ht_dbg(sdata,
2404 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2405 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2406
2407 mutex_lock(&sdata->local->sta_mtx);
2408 for (i = 0; i < STA_HASH_SIZE; i++) {
2409 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2410 lockdep_is_held(&sdata->local->sta_mtx));
2411 sta;
2412 sta = rcu_dereference_protected(sta->hnext,
2413 lockdep_is_held(&sdata->local->sta_mtx))) {
2414 /*
2415 * Only stations associated to our AP and
2416 * associated VLANs
2417 */
2418 if (sta->sdata->bss != &sdata->u.ap)
2419 continue;
2420
2421 /* This station doesn't support MIMO - skip it */
2422 if (sta_info_tx_streams(sta) == 1)
2423 continue;
2424
2425 /*
2426 * Don't wake up a STA just to send the action frame
2427 * unless we are getting more restrictive.
2428 */
2429 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2430 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2431 smps_mode)) {
2432 ht_dbg(sdata,
2433 "Won't send SMPS to sleeping STA %pM\n",
2434 sta->sta.addr);
2435 continue;
2436 }
2437
2438 /*
2439 * If the STA is not authorized, wait until it gets
2440 * authorized and the action frame will be sent then.
2441 */
2442 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2443 continue;
2444
2445 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2446 ieee80211_send_smps_action(sdata, smps_mode,
2447 sta->sta.addr,
2448 sdata->vif.bss_conf.bssid);
2449 }
2450 }
2451 mutex_unlock(&sdata->local->sta_mtx);
2452
2453 sdata->smps_mode = smps_mode;
2454 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2455
2456 return 0;
2457}
2458
2459int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2460 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2461{
2462 const u8 *ap;
2463 enum ieee80211_smps_mode old_req;
2464 int err;
2465
8d61ffa5 2466 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2467
687da132
EG		 2468 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2469 return -EINVAL;
2470
0f78231b
JB		 2471 old_req = sdata->u.mgd.req_smps;
2472 sdata->u.mgd.req_smps = smps_mode;
2473
2474 if (old_req == smps_mode &&
2475 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2476 return 0;
2477
2478 /*
2479 * If not associated, or current association is not an HT
04ecd257
JB		 2480 * association, there's no need to do anything, just store
2481 * the new value until we associate.
0f78231b
JB		 2482 */
2483 if (!sdata->u.mgd.associated ||
4bf88530 2484 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2485 return 0;
0f78231b 2486
0c1ad2ca 2487 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2488
2489 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2490 if (sdata->u.mgd.powersave)
2491 smps_mode = IEEE80211_SMPS_DYNAMIC;
2492 else
2493 smps_mode = IEEE80211_SMPS_OFF;
2494 }
2495
2496 /* send SM PS frame to AP */
2497 err = ieee80211_send_smps_action(sdata, smps_mode,
2498 ap, ap);
2499 if (err)
2500 sdata->u.mgd.req_smps = old_req;
2501
2502 return err;
2503}
2504
bc92afd9
JB		 2505static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2506 bool enabled, int timeout)
2507{
2508 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2509 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2510
2d3db210 2511 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2512 return -EOPNOTSUPP;
2513
bc92afd9
JB		 2514 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2515 return -EOPNOTSUPP;
2516
2517 if (enabled == sdata->u.mgd.powersave &&
ff616381 2518 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2519 return 0;
2520
2521 sdata->u.mgd.powersave = enabled;
ff616381 2522 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2523
0f78231b 2524 /* no change, but if automatic follow powersave */
ed405be5 2525 sdata_lock(sdata);
687da132 2526 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2527 sdata_unlock(sdata);
0f78231b 2528
bc92afd9
JB		 2529 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2530 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2531
2532 ieee80211_recalc_ps(local, -1);
ab095877 2533 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2534
2535 return 0;
2536}
2537
a97c13c3
JO		 2538static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2539 struct net_device *dev,
2540 s32 rssi_thold, u32 rssi_hyst)
2541{
2542 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2543 struct ieee80211_vif *vif = &sdata->vif;
2544 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2545
a97c13c3
JO		 2546 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2547 rssi_hyst == bss_conf->cqm_rssi_hyst)
2548 return 0;
2549
2550 bss_conf->cqm_rssi_thold = rssi_thold;
2551 bss_conf->cqm_rssi_hyst = rssi_hyst;
2552
2553 /* tell the driver upon association, unless already associated */
ea086359
JB		 2554 if (sdata->u.mgd.associated &&
2555 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2556 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2557
2558 return 0;
2559}
2560
9930380f
JB		 2561static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2562 struct net_device *dev,
2563 const u8 *addr,
2564 const struct cfg80211_bitrate_mask *mask)
2565{
2566 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2567 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2568 int i, ret;
2c7e6bc9 2569
554a43d5
EP		 2570 if (!ieee80211_sdata_running(sdata))
2571 return -ENETDOWN;
2572
bdbfd6b5
SM		 2573 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2574 ret = drv_set_bitrate_mask(local, sdata, mask);
2575 if (ret)
2576 return ret;
2577 }
9930380f 2578
19468413 2579 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2580 struct ieee80211_supported_band *sband = wiphy->bands[i];
2581 int j;
2582
37eb0b16 2583 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2584 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2585 sizeof(mask->control[i].ht_mcs));
2ffbe6d3
FF		 2586
2587 sdata->rc_has_mcs_mask[i] = false;
2588 if (!sband)
2589 continue;
2590
2591 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2592 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2593 sdata->rc_has_mcs_mask[i] = true;
2594 break;
2595 }
19468413 2596 }
9930380f 2597
37eb0b16 2598 return 0;
9930380f
JB		 2599}
2600
2eb278e0
JB		 2601static int ieee80211_start_roc_work(struct ieee80211_local *local,
2602 struct ieee80211_sub_if_data *sdata,
2603 struct ieee80211_channel *channel,
2eb278e0 2604 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2605 struct sk_buff *txskb,
2606 enum ieee80211_roc_type type)
2eb278e0
JB		 2607{
2608 struct ieee80211_roc_work *roc, *tmp;
2609 bool queued = false;
21f83589 2610 int ret;
21f83589
JB		 2611
2612 lockdep_assert_held(&local->mtx);
2613
fe57d9f5
JB		 2614 if (local->use_chanctx && !local->ops->remain_on_channel)
2615 return -EOPNOTSUPP;
2616
2eb278e0
JB		 2617 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2618 if (!roc)
2619 return -ENOMEM;
2620
2621 roc->chan = channel;
2eb278e0
JB		 2622 roc->duration = duration;
2623 roc->req_duration = duration;
2624 roc->frame = txskb;
d339d5ca 2625 roc->type = type;
2eb278e0
JB		 2626 roc->mgmt_tx_cookie = (unsigned long)txskb;
2627 roc->sdata = sdata;
2628 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2629 INIT_LIST_HEAD(&roc->dependents);
2630
2631 /* if there's one pending or we're scanning, queue this one */
164eb02d
SW		 2632 if (!list_empty(&local->roc_list) ||
2633 local->scanning || local->radar_detect_enabled)
2eb278e0
JB		 2634 goto out_check_combine;
2635
2636 /* if not HW assist, just queue & schedule work */
2637 if (!local->ops->remain_on_channel) {
2638 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2639 goto out_queue;
2640 }
2641
2642 /* otherwise actually kick it off here (for error handling) */
2643
2644 /*
2645 * If the duration is zero, then the driver
2646 * wouldn't actually do anything. Set it to
2647 * 10 for now.
2648 *
2649 * TODO: cancel the off-channel operation
2650 * when we get the SKB's TX status and
2651 * the wait time was zero before.
2652 */
2653 if (!duration)
2654 duration = 10;
2655
d339d5ca 2656 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2657 if (ret) {
2eb278e0
JB		 2658 kfree(roc);
2659 return ret;
21f83589
JB		 2660 }
2661
2eb278e0
JB		 2662 roc->started = true;
2663 goto out_queue;
2664
2665 out_check_combine:
2666 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2667 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2668 continue;
2669
2670 /*
2671 * Extend this ROC if possible:
2672 *
2673 * If it hasn't started yet, just increase the duration
2674 * and add the new one to the list of dependents.
d339d5ca
IP		 2675 * If the type of the new ROC has higher priority, modify the
2676 * type of the previous one to match that of the new one.
2eb278e0
JB		 2677 */
2678 if (!tmp->started) {
2679 list_add_tail(&roc->list, &tmp->dependents);
2680 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2681 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2682 queued = true;
2683 break;
2684 }
2685
2686 /* If it has already started, it's more difficult ... */
2687 if (local->ops->remain_on_channel) {
2688 unsigned long j = jiffies;
2689
2690 /*
2691 * In the offloaded ROC case, if it hasn't begun, add
2692 * this new one to the dependent list to be handled
d339d5ca 2693 * when the master one begins. If it has begun,
2eb278e0
JB		 2694 * check that there's still a minimum time left and
2695 * if so, start this one, transmitting the frame, but
d339d5ca 2696 * add it to the list directly after this one with
2eb278e0
JB		 2697 * a reduced time so we'll ask the driver to execute
2698 * it right after finishing the previous one, in the
2699 * hope that it'll also be executed right afterwards,
2700 * effectively extending the old one.
2701 * If there's no minimum time left, just add it to the
2702 * normal list.
d339d5ca
IP		 2703 * TODO: the ROC type is ignored here, assuming that it
2704 * is better to immediately use the current ROC.
2eb278e0
JB		 2705 */
2706 if (!tmp->hw_begun) {
2707 list_add_tail(&roc->list, &tmp->dependents);
2708 queued = true;
2709 break;
2710 }
2711
2712 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2713 tmp->hw_start_time +
2714 msecs_to_jiffies(tmp->duration))) {
2715 int new_dur;
2716
2717 ieee80211_handle_roc_started(roc);
2718
2719 new_dur = roc->duration -
2720 jiffies_to_msecs(tmp->hw_start_time +
2721 msecs_to_jiffies(
2722 tmp->duration) -
2723 j);
2724
2725 if (new_dur > 0) {
2726 /* add right after tmp */
2727 list_add(&roc->list, &tmp->list);
2728 } else {
2729 list_add_tail(&roc->list,
2730 &tmp->dependents);
2731 }
2732 queued = true;
2733 }
2734 } else if (del_timer_sync(&tmp->work.timer)) {
2735 unsigned long new_end;
2736
2737 /*
2738 * In the software ROC case, cancel the timer, if
2739 * that fails then the finish work is already
2740 * queued/pending and thus we queue the new ROC
2741 * normally, if that succeeds then we can extend
2742 * the timer duration and TX the frame (if any.)
2743 */
2744
2745 list_add_tail(&roc->list, &tmp->dependents);
2746 queued = true;
2747
2748 new_end = jiffies + msecs_to_jiffies(roc->duration);
2749
2750 /* ok, it was started & we canceled timer */
2751 if (time_after(new_end, tmp->work.timer.expires))
2752 mod_timer(&tmp->work.timer, new_end);
2753 else
2754 add_timer(&tmp->work.timer);
2755
2756 ieee80211_handle_roc_started(roc);
2757 }
2758 break;
2759 }
2760
2761 out_queue:
2762 if (!queued)
2763 list_add_tail(&roc->list, &local->roc_list);
2764
2765 /*
50febf6a 2766 * cookie is either the roc cookie (for normal roc)
2eb278e0
JB		 2767 * or the SKB (for mgmt TX)
2768 */
50febf6a
JB		 2769 if (!txskb) {
2770 /* local->mtx protects this */
2771 local->roc_cookie_counter++;
2772 roc->cookie = local->roc_cookie_counter;
2773 /* wow, you wrapped 64 bits ... more likely a bug */
2774 if (WARN_ON(roc->cookie == 0)) {
2775 roc->cookie = 1;
2776 local->roc_cookie_counter++;
2777 }
2778 *cookie = roc->cookie;
2779 } else {
2eb278e0 2780 *cookie = (unsigned long)txskb;
50febf6a 2781 }
2eb278e0
JB		 2782
2783 return 0;
21f83589
JB		 2784}
2785
b8bc4b0a 2786static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2787 struct wireless_dev *wdev,
b8bc4b0a 2788 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2789 unsigned int duration,
2790 u64 *cookie)
2791{
71bbc994 2792 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2793 struct ieee80211_local *local = sdata->local;
2eb278e0 2794 int ret;
21f83589 2795
2eb278e0 2796 mutex_lock(&local->mtx);
42d97a59 2797 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2798 duration, cookie, NULL,
2799 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2800 mutex_unlock(&local->mtx);
b8bc4b0a 2801
2eb278e0 2802 return ret;
b8bc4b0a
JB		 2803}
2804
2eb278e0
JB		 2805static int ieee80211_cancel_roc(struct ieee80211_local *local,
2806 u64 cookie, bool mgmt_tx)
21f83589 2807{
2eb278e0 2808 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2809 int ret;
2810
2eb278e0
JB		 2811 mutex_lock(&local->mtx);
2812 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2813 struct ieee80211_roc_work *dep, *tmp2;
2814
2815 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2816 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2817 continue;
2818 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2819 continue;
2820 /* found dependent item -- just remove it */
2821 list_del(&dep->list);
2822 mutex_unlock(&local->mtx);
2823
3fbd45ca 2824 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2825 return 0;
2826 }
2827
50febf6a 2828 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2829 continue;
2830 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2831 continue;
21f83589 2832
2eb278e0
JB		 2833 found = roc;
2834 break;
2835 }
21f83589 2836
2eb278e0
JB		 2837 if (!found) {
2838 mutex_unlock(&local->mtx);
2839 return -ENOENT;
2840 }
21f83589 2841
e979e33c
JB		 2842 /*
2843 * We found the item to cancel, so do that. Note that it
2844 * may have dependents, which we also cancel (and send
2845 * the expired signal for.) Not doing so would be quite
2846 * tricky here, but we may need to fix it later.
2847 */
2848
2eb278e0
JB		 2849 if (local->ops->remain_on_channel) {
2850 if (found->started) {
2851 ret = drv_cancel_remain_on_channel(local);
2852 if (WARN_ON_ONCE(ret)) {
2853 mutex_unlock(&local->mtx);
2854 return ret;
2855 }
2856 }
21f83589 2857
2eb278e0 2858 list_del(&found->list);
21f83589 2859
0f6b3f59
JB		 2860 if (found->started)
2861 ieee80211_start_next_roc(local);
2eb278e0 2862 mutex_unlock(&local->mtx);
21f83589 2863
3fbd45ca 2864 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2865 } else {
2866 /* work may be pending so use it all the time */
2867 found->abort = true;
2868 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2869
21f83589
JB		 2870 mutex_unlock(&local->mtx);
2871
2eb278e0
JB		 2872 /* work will clean up etc */
2873 flush_delayed_work(&found->work);
3fbd45ca
JB		 2874 WARN_ON(!found->to_be_freed);
2875 kfree(found);
21f83589 2876 }
b8bc4b0a 2877
2eb278e0 2878 return 0;
b8bc4b0a
JB		 2879}
2880
2eb278e0 2881static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2882 struct wireless_dev *wdev,
2eb278e0 2883 u64 cookie)
f30221e4 2884{
71bbc994 2885 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2886 struct ieee80211_local *local = sdata->local;
f30221e4 2887
2eb278e0 2888 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2889}
2890
164eb02d
SW		 2891static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2892 struct net_device *dev,
2893 struct cfg80211_chan_def *chandef)
2894{
2895 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2896 struct ieee80211_local *local = sdata->local;
2897 unsigned long timeout;
2898 int err;
2899
2900 if (!list_empty(&local->roc_list) || local->scanning)
2901 return -EBUSY;
2902
2903 /* whatever, but channel contexts should not complain about that one */
2904 sdata->smps_mode = IEEE80211_SMPS_OFF;
2905 sdata->needed_rx_chains = local->rx_chains;
2906 sdata->radar_required = true;
2907
2908 mutex_lock(&local->iflist_mtx);
2909 err = ieee80211_vif_use_channel(sdata, chandef,
2910 IEEE80211_CHANCTX_SHARED);
2911 mutex_unlock(&local->iflist_mtx);
2912 if (err)
2913 return err;
2914
2915 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2916 ieee80211_queue_delayed_work(&sdata->local->hw,
2917 &sdata->dfs_cac_timer_work, timeout);
2918
2919 return 0;
2920}
2921
73da7d5b
SW		 2922static struct cfg80211_beacon_data *
2923cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2924{
2925 struct cfg80211_beacon_data *new_beacon;
2926 u8 *pos;
2927 int len;
2928
2929 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2930 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2931 beacon->probe_resp_len;
2932
2933 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2934 if (!new_beacon)
2935 return NULL;
2936
2937 pos = (u8 *)(new_beacon + 1);
2938 if (beacon->head_len) {
2939 new_beacon->head_len = beacon->head_len;
2940 new_beacon->head = pos;
2941 memcpy(pos, beacon->head, beacon->head_len);
2942 pos += beacon->head_len;
2943 }
2944 if (beacon->tail_len) {
2945 new_beacon->tail_len = beacon->tail_len;
2946 new_beacon->tail = pos;
2947 memcpy(pos, beacon->tail, beacon->tail_len);
2948 pos += beacon->tail_len;
2949 }
2950 if (beacon->beacon_ies_len) {
2951 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2952 new_beacon->beacon_ies = pos;
2953 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2954 pos += beacon->beacon_ies_len;
2955 }
2956 if (beacon->proberesp_ies_len) {
2957 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2958 new_beacon->proberesp_ies = pos;
2959 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2960 pos += beacon->proberesp_ies_len;
2961 }
2962 if (beacon->assocresp_ies_len) {
2963 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2964 new_beacon->assocresp_ies = pos;
2965 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2966 pos += beacon->assocresp_ies_len;
2967 }
2968 if (beacon->probe_resp_len) {
2969 new_beacon->probe_resp_len = beacon->probe_resp_len;
2970 beacon->probe_resp = pos;
2971 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2972 pos += beacon->probe_resp_len;
2973 }
2974
2975 return new_beacon;
2976}
2977
2978void ieee80211_csa_finalize_work(struct work_struct *work)
2979{
2980 struct ieee80211_sub_if_data *sdata =
2981 container_of(work, struct ieee80211_sub_if_data,
2982 csa_finalize_work);
2983 struct ieee80211_local *local = sdata->local;
0951ebb8 2984 int err, changed = 0;
73da7d5b 2985
e487eaeb
SW		 2986 sdata_lock(sdata);
2987 /* AP might have been stopped while waiting for the lock. */
2988 if (!sdata->vif.csa_active)
2989 goto unlock;
2990
73da7d5b 2991 if (!ieee80211_sdata_running(sdata))
e487eaeb 2992 goto unlock;
73da7d5b 2993
73da7d5b 2994 sdata->radar_required = sdata->csa_radar_required;
33787fc4 2995 err = ieee80211_vif_change_channel(sdata, &changed);
73da7d5b 2996 if (WARN_ON(err < 0))
e487eaeb 2997 goto unlock;
73da7d5b 2998
7578d575 2999 if (!local->use_chanctx) {
33787fc4 3000 local->_oper_chandef = sdata->csa_chandef;
7578d575
AN		 3001 ieee80211_hw_config(local, 0);
3002 }
3003
cd7760e6 3004 ieee80211_bss_info_change_notify(sdata, changed);
73da7d5b 3005
e487eaeb 3006 sdata->vif.csa_active = false;
cd7760e6
SW		 3007 switch (sdata->vif.type) {
3008 case NL80211_IFTYPE_AP:
3009 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3010 if (err < 0)
e487eaeb
SW		 3011 goto unlock;
3012
cd7760e6
SW		 3013 changed |= err;
3014 kfree(sdata->u.ap.next_beacon);
3015 sdata->u.ap.next_beacon = NULL;
3016
3017 ieee80211_bss_info_change_notify(sdata, err);
3018 break;
3019 case NL80211_IFTYPE_ADHOC:
3020 ieee80211_ibss_finish_csa(sdata);
3021 break;
b8456a14
CYY		 3022#ifdef CONFIG_MAC80211_MESH
3023 case NL80211_IFTYPE_MESH_POINT:
3024 err = ieee80211_mesh_finish_csa(sdata);
3025 if (err < 0)
e487eaeb 3026 goto unlock;
b8456a14
CYY		 3027 break;
3028#endif
cd7760e6
SW		 3029 default:
3030 WARN_ON(1);
e487eaeb 3031 goto unlock;
cd7760e6 3032 }
73da7d5b
SW		 3033
3034 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3035 IEEE80211_MAX_QUEUE_MAP,
3036 IEEE80211_QUEUE_STOP_REASON_CSA);
3037
33787fc4 3038 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
e487eaeb
SW		 3039
3040unlock:
3041 sdata_unlock(sdata);
73da7d5b
SW		 3042}
3043
3044static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3045 struct cfg80211_csa_settings *params)
3046{
3047 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3048 struct ieee80211_local *local = sdata->local;
3049 struct ieee80211_chanctx_conf *chanctx_conf;
3050 struct ieee80211_chanctx *chanctx;
c6da674a 3051 struct ieee80211_if_mesh __maybe_unused *ifmsh;
73da7d5b
SW		 3052 int err, num_chanctx;
3053
7ca133bc
SW		 3054 lockdep_assert_held(&sdata->wdev.mtx);
3055
73da7d5b
SW		 3056 if (!list_empty(&local->roc_list) || local->scanning)
3057 return -EBUSY;
3058
3059 if (sdata->wdev.cac_started)
3060 return -EBUSY;
3061
3062 if (cfg80211_chandef_identical(&params->chandef,
3063 &sdata->vif.bss_conf.chandef))
3064 return -EINVAL;
3065
3066 rcu_read_lock();
3067 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3068 if (!chanctx_conf) {
3069 rcu_read_unlock();
3070 return -EBUSY;
3071 }
3072
3073 /* don't handle for multi-VIF cases */
3074 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
3075 if (chanctx->refcount > 1) {
3076 rcu_read_unlock();
3077 return -EBUSY;
3078 }
3079 num_chanctx = 0;
3080 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3081 num_chanctx++;
3082 rcu_read_unlock();
3083
3084 if (num_chanctx > 1)
3085 return -EBUSY;
3086
3087 /* don't allow another channel switch if one is already active. */
3088 if (sdata->vif.csa_active)
3089 return -EBUSY;
3090
73da7d5b
SW		 3091 switch (sdata->vif.type) {
3092 case NL80211_IFTYPE_AP:
cd7760e6
SW		 3093 sdata->csa_counter_offset_beacon =
3094 params->counter_offset_beacon;
3095 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3096 sdata->u.ap.next_beacon =
3097 cfg80211_beacon_dup(&params->beacon_after);
3098 if (!sdata->u.ap.next_beacon)
3099 return -ENOMEM;
3100
3101 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3102 if (err < 0) {
3103 kfree(sdata->u.ap.next_beacon);
3104 return err;
3105 }
3106 break;
3107 case NL80211_IFTYPE_ADHOC:
3108 if (!sdata->vif.bss_conf.ibss_joined)
3109 return -EINVAL;
3110
3111 if (params->chandef.width != sdata->u.ibss.chandef.width)
3112 return -EINVAL;
3113
3114 switch (params->chandef.width) {
3115 case NL80211_CHAN_WIDTH_40:
3116 if (cfg80211_get_chandef_type(&params->chandef) !=
3117 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3118 return -EINVAL;
3119 case NL80211_CHAN_WIDTH_5:
3120 case NL80211_CHAN_WIDTH_10:
3121 case NL80211_CHAN_WIDTH_20_NOHT:
3122 case NL80211_CHAN_WIDTH_20:
3123 break;
3124 default:
3125 return -EINVAL;
3126 }
3127
3128 /* changes into another band are not supported */
3129 if (sdata->u.ibss.chandef.chan->band !=
3130 params->chandef.chan->band)
3131 return -EINVAL;
3132
3133 err = ieee80211_ibss_csa_beacon(sdata, params);
3134 if (err < 0)
3135 return err;
73da7d5b 3136 break;
c6da674a
CYY		 3137#ifdef CONFIG_MAC80211_MESH
3138 case NL80211_IFTYPE_MESH_POINT:
3139 ifmsh = &sdata->u.mesh;
3140
3141 if (!ifmsh->mesh_id)
3142 return -EINVAL;
3143
3144 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3145 return -EINVAL;
3146
3147 /* changes into another band are not supported */
3148 if (sdata->vif.bss_conf.chandef.chan->band !=
3149 params->chandef.chan->band)
3150 return -EINVAL;
3151
3f718fd8
CYY		 3152 ifmsh->chsw_init = true;
3153 if (!ifmsh->pre_value)
3154 ifmsh->pre_value = 1;
3155 else
3156 ifmsh->pre_value++;
3157
b8456a14 3158 err = ieee80211_mesh_csa_beacon(sdata, params, true);
3f718fd8
CYY		 3159 if (err < 0) {
3160 ifmsh->chsw_init = false;
c6da674a 3161 return err;
3f718fd8 3162 }
c6da674a
CYY		 3163 break;
3164#endif
73da7d5b
SW		 3165 default:
3166 return -EOPNOTSUPP;
3167 }
3168
73da7d5b
SW		 3169 sdata->csa_radar_required = params->radar_required;
3170
3171 if (params->block_tx)
3172 ieee80211_stop_queues_by_reason(&local->hw,
3173 IEEE80211_MAX_QUEUE_MAP,
3174 IEEE80211_QUEUE_STOP_REASON_CSA);
3175
33787fc4 3176 sdata->csa_chandef = params->chandef;
73da7d5b
SW		 3177 sdata->vif.csa_active = true;
3178
3179 ieee80211_bss_info_change_notify(sdata, err);
3180 drv_channel_switch_beacon(sdata, &params->chandef);
3181
3182 return 0;
3183}
3184
71bbc994 3185static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3186 struct cfg80211_mgmt_tx_params *params,
3187 u64 *cookie)
026331c4 3188{
71bbc994 3189 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d
JB		 3190 struct ieee80211_local *local = sdata->local;
3191 struct sk_buff *skb;
3192 struct sta_info *sta;
b176e629 3193 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3194 bool need_offchan = false;
e247bd90 3195 u32 flags;
2eb278e0 3196 int ret;
f7ca38df 3197
b176e629 3198 if (params->dont_wait_for_ack)
e247bd90
JB		 3199 flags = IEEE80211_TX_CTL_NO_ACK;
3200 else
3201 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3202 IEEE80211_TX_CTL_REQ_TX_STATUS;
3203
b176e629 3204 if (params->no_cck)
aad14ceb
RM		 3205 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3206
9d38d85d
JB		 3207 switch (sdata->vif.type) {
3208 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3209 if (!sdata->vif.bss_conf.ibss_joined)
3210 need_offchan = true;
3211 /* fall through */
3212#ifdef CONFIG_MAC80211_MESH
3213 case NL80211_IFTYPE_MESH_POINT:
3214 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3215 !sdata->u.mesh.mesh_id_len)
3216 need_offchan = true;
3217 /* fall through */
3218#endif
663fcafd
JB		 3219 case NL80211_IFTYPE_AP:
3220 case NL80211_IFTYPE_AP_VLAN:
3221 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3222 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3223 !ieee80211_vif_is_mesh(&sdata->vif) &&
3224 !rcu_access_pointer(sdata->bss->beacon))
3225 need_offchan = true;
663fcafd 3226 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3227 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3228 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3229 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3230 break;
3231 rcu_read_lock();
3232 sta = sta_info_get(sdata, mgmt->da);
3233 rcu_read_unlock();
3234 if (!sta)
3235 return -ENOLINK;
3236 break;
3237 case NL80211_IFTYPE_STATION:
663fcafd 3238 case NL80211_IFTYPE_P2P_CLIENT:
2eb278e0
JB		 3239 if (!sdata->u.mgd.associated)
3240 need_offchan = true;
9d38d85d 3241 break;
f142c6b9
JB		 3242 case NL80211_IFTYPE_P2P_DEVICE:
3243 need_offchan = true;
3244 break;
9d38d85d
JB		 3245 default:
3246 return -EOPNOTSUPP;
3247 }
3248
f7aeb6fb
AQ		 3249 /* configurations requiring offchan cannot work if no channel has been
3250 * specified
3251 */
b176e629 3252 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3253 return -EINVAL;
3254
2eb278e0
JB		 3255 mutex_lock(&local->mtx);
3256
3257 /* Check if the operating channel is the requested channel */
3258 if (!need_offchan) {
55de908a
JB		 3259 struct ieee80211_chanctx_conf *chanctx_conf;
3260
3261 rcu_read_lock();
3262 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3263
f7aeb6fb 3264 if (chanctx_conf) {
b176e629
AO		 3265 need_offchan = params->chan &&
3266 (params->chan !=
3267 chanctx_conf->def.chan);
3268 } else if (!params->chan) {
f7aeb6fb
AQ		 3269 ret = -EINVAL;
3270 rcu_read_unlock();
3271 goto out_unlock;
3272 } else {
2eb278e0 3273 need_offchan = true;
f7aeb6fb 3274 }
55de908a 3275 rcu_read_unlock();
2eb278e0
JB		 3276 }
3277
b176e629 3278 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3279 ret = -EBUSY;
3280 goto out_unlock;
3281 }
3282
b176e629 3283 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3284 if (!skb) {
3285 ret = -ENOMEM;
3286 goto out_unlock;
3287 }
9d38d85d
JB		 3288 skb_reserve(skb, local->hw.extra_tx_headroom);
3289
b176e629 3290 memcpy(skb_put(skb, params->len), params->buf, params->len);
9d38d85d
JB		 3291
3292 IEEE80211_SKB_CB(skb)->flags = flags;
3293
3294 skb->dev = sdata->dev;
9d38d85d 3295
2eb278e0 3296 if (!need_offchan) {
7f9f78ab 3297 *cookie = (unsigned long) skb;
f30221e4 3298 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3299 ret = 0;
3300 goto out_unlock;
f30221e4
JB		 3301 }
3302
6c17b77b
SF		 3303 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3304 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2eb278e0
JB		 3305 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3306 IEEE80211_SKB_CB(skb)->hw_queue =
3307 local->hw.offchannel_tx_hw_queue;
f30221e4 3308
2eb278e0 3309 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3310 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3311 params->wait, cookie, skb,
d339d5ca 3312 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3313 if (ret)
3314 kfree_skb(skb);
3315 out_unlock:
3316 mutex_unlock(&local->mtx);
3317 return ret;
026331c4
JM		 3318}
3319
f30221e4 3320static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3321 struct wireless_dev *wdev,
f30221e4
JB		 3322 u64 cookie)
3323{
71bbc994 3324 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3325
2eb278e0 3326 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3327}
3328
7be5086d 3329static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3330 struct wireless_dev *wdev,
7be5086d
JB		 3331 u16 frame_type, bool reg)
3332{
3333 struct ieee80211_local *local = wiphy_priv(wiphy);
3334
6abe0563 3335 switch (frame_type) {
6abe0563
WH		 3336 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3337 if (reg)
3338 local->probe_req_reg++;
3339 else
3340 local->probe_req_reg--;
7be5086d 3341
35f5149e
FF		 3342 if (!local->open_count)
3343 break;
3344
6abe0563
WH		 3345 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3346 break;
3347 default:
3348 break;
3349 }
7be5086d
JB		 3350}
3351
15d96753
BR		 3352static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3353{
3354 struct ieee80211_local *local = wiphy_priv(wiphy);
3355
3356 if (local->started)
3357 return -EOPNOTSUPP;
3358
3359 return drv_set_antenna(local, tx_ant, rx_ant);
3360}
3361
3362static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3363{
3364 struct ieee80211_local *local = wiphy_priv(wiphy);
3365
3366 return drv_get_antenna(local, tx_ant, rx_ant);
3367}
3368
38c09159
JL		 3369static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3370{
3371 struct ieee80211_local *local = wiphy_priv(wiphy);
3372
3373 return drv_set_ringparam(local, tx, rx);
3374}
3375
3376static void ieee80211_get_ringparam(struct wiphy *wiphy,
3377 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3378{
3379 struct ieee80211_local *local = wiphy_priv(wiphy);
3380
3381 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3382}
3383
c68f4b89
JB		 3384static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3385 struct net_device *dev,
3386 struct cfg80211_gtk_rekey_data *data)
3387{
3388 struct ieee80211_local *local = wiphy_priv(wiphy);
3389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3390
3391 if (!local->ops->set_rekey_data)
3392 return -EOPNOTSUPP;
3393
3394 drv_set_rekey_data(local, sdata, data);
3395
3396 return 0;
3397}
3398
dfe018bf
AN		 3399static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3400{
3401 u8 *pos = (void *)skb_put(skb, 7);
3402
3403 *pos++ = WLAN_EID_EXT_CAPABILITY;
3404 *pos++ = 5; /* len */
3405 *pos++ = 0x0;
3406 *pos++ = 0x0;
3407 *pos++ = 0x0;
3408 *pos++ = 0x0;
3409 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3410}
3411
3412static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3413{
3414 struct ieee80211_local *local = sdata->local;
3415 u16 capab;
3416
3417 capab = 0;
55de908a 3418 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
dfe018bf
AN		 3419 return capab;
3420
3421 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3422 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3423 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3424 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3425
3426 return capab;
3427}
3428
3429static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3430 u8 *peer, u8 *bssid)
3431{
3432 struct ieee80211_tdls_lnkie *lnkid;
3433
3434 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3435
3436 lnkid->ie_type = WLAN_EID_LINK_ID;
3437 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3438
3439 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3440 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3441 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3442}
3443
3444static int
3445ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3446 u8 *peer, u8 action_code, u8 dialog_token,
3447 u16 status_code, struct sk_buff *skb)
3448{
3449 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3450 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3451 struct ieee80211_tdls_data *tf;
3452
3453 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3454
3455 memcpy(tf->da, peer, ETH_ALEN);
3456 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3457 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3458 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3459
3460 switch (action_code) {
3461 case WLAN_TDLS_SETUP_REQUEST:
3462 tf->category = WLAN_CATEGORY_TDLS;
3463 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3464
3465 skb_put(skb, sizeof(tf->u.setup_req));
3466 tf->u.setup_req.dialog_token = dialog_token;
3467 tf->u.setup_req.capability =
3468 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3469
55de908a
JB		 3470 ieee80211_add_srates_ie(sdata, skb, false, band);
3471 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3472 ieee80211_tdls_add_ext_capab(skb);
3473 break;
3474 case WLAN_TDLS_SETUP_RESPONSE:
3475 tf->category = WLAN_CATEGORY_TDLS;
3476 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3477
3478 skb_put(skb, sizeof(tf->u.setup_resp));
3479 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3480 tf->u.setup_resp.dialog_token = dialog_token;
3481 tf->u.setup_resp.capability =
3482 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3483
55de908a
JB		 3484 ieee80211_add_srates_ie(sdata, skb, false, band);
3485 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3486 ieee80211_tdls_add_ext_capab(skb);
3487 break;
3488 case WLAN_TDLS_SETUP_CONFIRM:
3489 tf->category = WLAN_CATEGORY_TDLS;
3490 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3491
3492 skb_put(skb, sizeof(tf->u.setup_cfm));
3493 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3494 tf->u.setup_cfm.dialog_token = dialog_token;
3495 break;
3496 case WLAN_TDLS_TEARDOWN:
3497 tf->category = WLAN_CATEGORY_TDLS;
3498 tf->action_code = WLAN_TDLS_TEARDOWN;
3499
3500 skb_put(skb, sizeof(tf->u.teardown));
3501 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3502 break;
3503 case WLAN_TDLS_DISCOVERY_REQUEST:
3504 tf->category = WLAN_CATEGORY_TDLS;
3505 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3506
3507 skb_put(skb, sizeof(tf->u.discover_req));
3508 tf->u.discover_req.dialog_token = dialog_token;
3509 break;
3510 default:
3511 return -EINVAL;
3512 }
3513
3514 return 0;
3515}
3516
3517static int
3518ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3519 u8 *peer, u8 action_code, u8 dialog_token,
3520 u16 status_code, struct sk_buff *skb)
3521{
3522 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3523 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3524 struct ieee80211_mgmt *mgmt;
3525
3526 mgmt = (void *)skb_put(skb, 24);
3527 memset(mgmt, 0, 24);
3528 memcpy(mgmt->da, peer, ETH_ALEN);
3529 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3530 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3531
3532 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3533 IEEE80211_STYPE_ACTION);
3534
3535 switch (action_code) {
3536 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3537 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3538 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3539 mgmt->u.action.u.tdls_discover_resp.action_code =
3540 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3541 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3542 dialog_token;
3543 mgmt->u.action.u.tdls_discover_resp.capability =
3544 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3545
55de908a
JB		 3546 ieee80211_add_srates_ie(sdata, skb, false, band);
3547 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3548 ieee80211_tdls_add_ext_capab(skb);
3549 break;
3550 default:
3551 return -EINVAL;
3552 }
3553
3554 return 0;
3555}
3556
3557static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3558 u8 *peer, u8 action_code, u8 dialog_token,
3559 u16 status_code, const u8 *extra_ies,
3560 size_t extra_ies_len)
3561{
3562 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3563 struct ieee80211_local *local = sdata->local;
dfe018bf
AN		 3564 struct sk_buff *skb = NULL;
3565 bool send_direct;
3566 int ret;
3567
3568 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3569 return -ENOTSUPP;
3570
3571 /* make sure we are in managed mode, and associated */
3572 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3573 !sdata->u.mgd.associated)
3574 return -EINVAL;
3575
bdcbd8e0
JB		 3576 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3577 action_code, peer);
dfe018bf
AN		 3578
3579 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3580 max(sizeof(struct ieee80211_mgmt),
3581 sizeof(struct ieee80211_tdls_data)) +
3582 50 + /* supported rates */
3583 7 + /* ext capab */
3584 extra_ies_len +
3585 sizeof(struct ieee80211_tdls_lnkie));
3586 if (!skb)
3587 return -ENOMEM;
3588
dfe018bf
AN		 3589 skb_reserve(skb, local->hw.extra_tx_headroom);
3590
3591 switch (action_code) {
3592 case WLAN_TDLS_SETUP_REQUEST:
3593 case WLAN_TDLS_SETUP_RESPONSE:
3594 case WLAN_TDLS_SETUP_CONFIRM:
3595 case WLAN_TDLS_TEARDOWN:
3596 case WLAN_TDLS_DISCOVERY_REQUEST:
3597 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3598 action_code, dialog_token,
3599 status_code, skb);
3600 send_direct = false;
3601 break;
3602 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3603 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3604 dialog_token, status_code,
3605 skb);
3606 send_direct = true;
3607 break;
3608 default:
3609 ret = -ENOTSUPP;
3610 break;
3611 }
3612
3613 if (ret < 0)
3614 goto fail;
3615
3616 if (extra_ies_len)
3617 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3618
3619 /* the TDLS link IE is always added last */
3620 switch (action_code) {
3621 case WLAN_TDLS_SETUP_REQUEST:
3622 case WLAN_TDLS_SETUP_CONFIRM:
3623 case WLAN_TDLS_TEARDOWN:
3624 case WLAN_TDLS_DISCOVERY_REQUEST:
3625 /* we are the initiator */
3626 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3627 sdata->u.mgd.bssid);
3628 break;
3629 case WLAN_TDLS_SETUP_RESPONSE:
3630 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3631 /* we are the responder */
3632 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3633 sdata->u.mgd.bssid);
3634 break;
3635 default:
3636 ret = -ENOTSUPP;
3637 goto fail;
3638 }
3639
3640 if (send_direct) {
3641 ieee80211_tx_skb(sdata, skb);
3642 return 0;
3643 }
3644
3645 /*
3646 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3647 * we should default to AC_VI.
3648 */
3649 switch (action_code) {
3650 case WLAN_TDLS_SETUP_REQUEST:
3651 case WLAN_TDLS_SETUP_RESPONSE:
3652 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3653 skb->priority = 2;
3654 break;
3655 default:
3656 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3657 skb->priority = 5;
3658 break;
3659 }
3660
3661 /* disable bottom halves when entering the Tx path */
3662 local_bh_disable();
3663 ret = ieee80211_subif_start_xmit(skb, dev);
3664 local_bh_enable();
3665
3666 return ret;
3667
3668fail:
3669 dev_kfree_skb(skb);
3670 return ret;
3671}
3672
3673static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3674 u8 *peer, enum nl80211_tdls_operation oper)
3675{
941c93cd 3676 struct sta_info *sta;
dfe018bf
AN		 3677 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3678
3679 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3680 return -ENOTSUPP;
3681
3682 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3683 return -EINVAL;
3684
bdcbd8e0 3685 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
dfe018bf
AN		 3686
3687 switch (oper) {
3688 case NL80211_TDLS_ENABLE_LINK:
941c93cd
AN		 3689 rcu_read_lock();
3690 sta = sta_info_get(sdata, peer);
3691 if (!sta) {
3692 rcu_read_unlock();
3693 return -ENOLINK;
3694 }
3695
c2c98fde 3696 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
941c93cd 3697 rcu_read_unlock();
dfe018bf
AN		 3698 break;
3699 case NL80211_TDLS_DISABLE_LINK:
3700 return sta_info_destroy_addr(sdata, peer);
3701 case NL80211_TDLS_TEARDOWN:
3702 case NL80211_TDLS_SETUP:
3703 case NL80211_TDLS_DISCOVERY_REQ:
3704 /* We don't support in-driver setup/teardown/discovery */
3705 return -ENOTSUPP;
3706 default:
3707 return -ENOTSUPP;
3708 }
3709
3710 return 0;
3711}
3712
06500736
JB		 3713static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3714 const u8 *peer, u64 *cookie)
3715{
3716 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3717 struct ieee80211_local *local = sdata->local;
3718 struct ieee80211_qos_hdr *nullfunc;
3719 struct sk_buff *skb;
3720 int size = sizeof(*nullfunc);
3721 __le16 fc;
3722 bool qos;
3723 struct ieee80211_tx_info *info;
3724 struct sta_info *sta;
55de908a
JB		 3725 struct ieee80211_chanctx_conf *chanctx_conf;
3726 enum ieee80211_band band;
06500736
JB		 3727
3728 rcu_read_lock();
55de908a
JB		 3729 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3730 if (WARN_ON(!chanctx_conf)) {
3731 rcu_read_unlock();
3732 return -EINVAL;
3733 }
4bf88530 3734 band = chanctx_conf->def.chan->band;
03bb7f42 3735 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3736 if (sta) {
06500736 3737 qos = test_sta_flag(sta, WLAN_STA_WME);
b4487c2d
JB		 3738 } else {
3739 rcu_read_unlock();
06500736 3740 return -ENOLINK;
b4487c2d 3741 }
06500736
JB		 3742
3743 if (qos) {
3744 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3745 IEEE80211_STYPE_QOS_NULLFUNC |
3746 IEEE80211_FCTL_FROMDS);
3747 } else {
3748 size -= 2;
3749 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3750 IEEE80211_STYPE_NULLFUNC |
3751 IEEE80211_FCTL_FROMDS);
3752 }
3753
3754 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a
JB		 3755 if (!skb) {
3756 rcu_read_unlock();
06500736 3757 return -ENOMEM;
55de908a 3758 }
06500736
JB		 3759
3760 skb->dev = dev;
3761
3762 skb_reserve(skb, local->hw.extra_tx_headroom);
3763
3764 nullfunc = (void *) skb_put(skb, size);
3765 nullfunc->frame_control = fc;
3766 nullfunc->duration_id = 0;
3767 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3768 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3769 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3770 nullfunc->seq_ctrl = 0;
3771
3772 info = IEEE80211_SKB_CB(skb);
3773
3774 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3775 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3776
3777 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3778 skb->priority = 7;
3779 if (qos)
3780 nullfunc->qos_ctrl = cpu_to_le16(7);
3781
3782 local_bh_disable();
55de908a 3783 ieee80211_xmit(sdata, skb, band);
06500736 3784 local_bh_enable();
55de908a 3785 rcu_read_unlock();
06500736
JB		 3786
3787 *cookie = (unsigned long) skb;
3788 return 0;
3789}
3790
683b6d3b
JB		 3791static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3792 struct wireless_dev *wdev,
3793 struct cfg80211_chan_def *chandef)
5b7ccaf3 3794{
55de908a 3795 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3796 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3797 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3798 int ret = -ENODATA;
55de908a
JB		 3799
3800 rcu_read_lock();
feda3027
JB		 3801 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3802 if (chanctx_conf) {
3803 *chandef = chanctx_conf->def;
3804 ret = 0;
3805 } else if (local->open_count > 0 &&
3806 local->open_count == local->monitors &&
3807 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3808 if (local->use_chanctx)
3809 *chandef = local->monitor_chandef;
3810 else
675a0b04 3811 *chandef = local->_oper_chandef;
683b6d3b 3812 ret = 0;
55de908a
JB		 3813 }
3814 rcu_read_unlock();
5b7ccaf3 3815
683b6d3b 3816 return ret;
5b7ccaf3
JB		 3817}
3818
6d52563f
JB		 3819#ifdef CONFIG_PM
3820static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3821{
3822 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3823}
3824#endif
3825
f0706e82
JB		 3826struct cfg80211_ops mac80211_config_ops = {
3827 .add_virtual_intf = ieee80211_add_iface,
3828 .del_virtual_intf = ieee80211_del_iface,
42613db7 3829 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3830 .start_p2p_device = ieee80211_start_p2p_device,
3831 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3832 .add_key = ieee80211_add_key,
3833 .del_key = ieee80211_del_key,
62da92fb 3834 .get_key = ieee80211_get_key,
e8cbb4cb 3835 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3836 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3837 .start_ap = ieee80211_start_ap,
3838 .change_beacon = ieee80211_change_beacon,
3839 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3840 .add_station = ieee80211_add_station,
3841 .del_station = ieee80211_del_station,
3842 .change_station = ieee80211_change_station,
7bbdd2d9 3843 .get_station = ieee80211_get_station,
c5dd9c2b 3844 .dump_station = ieee80211_dump_station,
1289723e 3845 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3846#ifdef CONFIG_MAC80211_MESH
3847 .add_mpath = ieee80211_add_mpath,
3848 .del_mpath = ieee80211_del_mpath,
3849 .change_mpath = ieee80211_change_mpath,
3850 .get_mpath = ieee80211_get_mpath,
3851 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 3852 .update_mesh_config = ieee80211_update_mesh_config,
3853 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3854 .join_mesh = ieee80211_join_mesh,
3855 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3856#endif
9f1ba906 3857 .change_bss = ieee80211_change_bss,
31888487 3858 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3859 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3860 .suspend = ieee80211_suspend,
3861 .resume = ieee80211_resume,
2a519311 3862 .scan = ieee80211_scan,
79f460ca
LC		 3863 .sched_scan_start = ieee80211_sched_scan_start,
3864 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3865 .auth = ieee80211_auth,
3866 .assoc = ieee80211_assoc,
3867 .deauth = ieee80211_deauth,
3868 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3869 .join_ibss = ieee80211_join_ibss,
3870 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3871 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3872 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3873 .set_tx_power = ieee80211_set_tx_power,
3874 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3875 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3876 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3877 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3878 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3879 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3880 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3881 .remain_on_channel = ieee80211_remain_on_channel,
3882 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3883 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3884 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3885 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3886 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3887 .set_antenna = ieee80211_set_antenna,
3888 .get_antenna = ieee80211_get_antenna,
38c09159
JL		 3889 .set_ringparam = ieee80211_set_ringparam,
3890 .get_ringparam = ieee80211_get_ringparam,
c68f4b89 3891 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3892 .tdls_oper = ieee80211_tdls_oper,
3893 .tdls_mgmt = ieee80211_tdls_mgmt,
06500736 3894 .probe_client = ieee80211_probe_client,
b53be792 3895 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3896#ifdef CONFIG_PM
3897 .set_wakeup = ieee80211_set_wakeup,
3898#endif
b1ab7925
BG		 3899 .get_et_sset_count = ieee80211_get_et_sset_count,
3900 .get_et_stats = ieee80211_get_et_stats,
3901 .get_et_strings = ieee80211_get_et_strings,
5b7ccaf3 3902 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3903 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3904 .channel_switch = ieee80211_channel_switch,
f0706e82 3905};
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