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cfg80211: regulatory introduce maximum bandwidth calculation
[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
354e159d 304 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
2475b1cc 305 key = rcu_dereference(sta->ptk[key_idx]);
31f1f4ec
MS		 306 else if (!pairwise &&
307 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
a3836e02 308 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 309 } else
a3836e02 310 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 311
312 if (!key)
313 goto out;
314
315 memset(&params, 0, sizeof(params));
316
97359d12 317 params.cipher = key->conf.cipher;
62da92fb 318
97359d12
JB		 319 switch (key->conf.cipher) {
320 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 321 iv32 = key->u.tkip.tx.iv32;
322 iv16 = key->u.tkip.tx.iv16;
62da92fb 323
24487981
JB		 324 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
325 drv_get_tkip_seq(sdata->local,
326 key->conf.hw_key_idx,
327 &iv32, &iv16);
62da92fb
JB		 328
329 seq[0] = iv16 & 0xff;
330 seq[1] = (iv16 >> 8) & 0xff;
331 seq[2] = iv32 & 0xff;
332 seq[3] = (iv32 >> 8) & 0xff;
333 seq[4] = (iv32 >> 16) & 0xff;
334 seq[5] = (iv32 >> 24) & 0xff;
335 params.seq = seq;
336 params.seq_len = 6;
337 break;
97359d12 338 case WLAN_CIPHER_SUITE_CCMP:
aba83a0b
JB		 339 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
340 seq[0] = pn64;
341 seq[1] = pn64 >> 8;
342 seq[2] = pn64 >> 16;
343 seq[3] = pn64 >> 24;
344 seq[4] = pn64 >> 32;
345 seq[5] = pn64 >> 40;
62da92fb
JB		 346 params.seq = seq;
347 params.seq_len = 6;
348 break;
97359d12 349 case WLAN_CIPHER_SUITE_AES_CMAC:
75396ae6
JB		 350 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
351 seq[0] = pn64;
352 seq[1] = pn64 >> 8;
353 seq[2] = pn64 >> 16;
354 seq[3] = pn64 >> 24;
355 seq[4] = pn64 >> 32;
356 seq[5] = pn64 >> 40;
3cfcf6ac
JM		 357 params.seq = seq;
358 params.seq_len = 6;
359 break;
62da92fb
JB		 360 }
361
362 params.key = key->conf.key;
363 params.key_len = key->conf.keylen;
364
365 callback(cookie, &params);
366 err = 0;
367
368 out:
3b96766f 369 rcu_read_unlock();
62da92fb
JB		 370 return err;
371}
372
e8cbb4cb
JB		 373static int ieee80211_config_default_key(struct wiphy *wiphy,
374 struct net_device *dev,
dbd2fd65
JB		 375 u8 key_idx, bool uni,
376 bool multi)
e8cbb4cb 377{
ad0e2b5a 378 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 379
f7e0104c 380 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 381
382 return 0;
383}
384
3cfcf6ac
JM		 385static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
386 struct net_device *dev,
387 u8 key_idx)
388{
66c52421 389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 390
3cfcf6ac
JM		 391 ieee80211_set_default_mgmt_key(sdata, key_idx);
392
3cfcf6ac
JM		 393 return 0;
394}
395
6b62bf32
TP		 396void sta_set_rate_info_tx(struct sta_info *sta,
397 const struct ieee80211_tx_rate *rate,
398 struct rate_info *rinfo)
399{
400 rinfo->flags = 0;
8bc83c24 401 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 402 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 403 rinfo->mcs = rate->idx;
404 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
405 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
406 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
407 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
408 } else {
409 struct ieee80211_supported_band *sband;
2103dec1
SW		 410 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
411 u16 brate;
412
8bc83c24
JB		 413 sband = sta->local->hw.wiphy->bands[
414 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 415 brate = sband->bitrates[rate->idx].bitrate;
416 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
8bc83c24 417 }
6b62bf32
TP		 418 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
419 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
8bc83c24
JB		 420 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
421 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
422 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
423 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
6b62bf32
TP		 424 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
425 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 426}
427
003e676a
S		 428void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
429{
430 rinfo->flags = 0;
431
432 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
433 rinfo->flags |= RATE_INFO_FLAGS_MCS;
434 rinfo->mcs = sta->last_rx_rate_idx;
435 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
436 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
437 rinfo->nss = sta->last_rx_rate_vht_nss;
438 rinfo->mcs = sta->last_rx_rate_idx;
439 } else {
440 struct ieee80211_supported_band *sband;
2103dec1
SW		 441 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
442 u16 brate;
003e676a
S		 443
444 sband = sta->local->hw.wiphy->bands[
445 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 446 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
447 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
003e676a
S		 448 }
449
450 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
451 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
452 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
453 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
454 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
455 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
456 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
457 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
458 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
459 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
460}
461
c5dd9c2b
LCC		 462static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
463{
d0709a65 464 struct ieee80211_sub_if_data *sdata = sta->sdata;
66572cfc 465 struct ieee80211_local *local = sdata->local;
ebe27c91 466 struct timespec uptime;
560d2682 467 u64 packets = 0;
ef0621e8 468 int i, ac;
c5dd9c2b 469
f5ea9120
JB		 470 sinfo->generation = sdata->local->sta_generation;
471
c5dd9c2b 472 sinfo->filled = STATION_INFO_INACTIVE_TIME |
560d2682
JB		 473 STATION_INFO_RX_BYTES64 |
474 STATION_INFO_TX_BYTES64 |
98c8a60a
JM		 475 STATION_INFO_RX_PACKETS |
476 STATION_INFO_TX_PACKETS |
b206b4ef
BR		 477 STATION_INFO_TX_RETRIES |
478 STATION_INFO_TX_FAILED |
5a5c731a 479 STATION_INFO_TX_BITRATE |
3af6334c 480 STATION_INFO_RX_BITRATE |
f4263c98 481 STATION_INFO_RX_DROP_MISC |
ebe27c91 482 STATION_INFO_BSS_PARAM |
7a724767 483 STATION_INFO_CONNECTED_TIME |
a85e1d55
PS		 484 STATION_INFO_STA_FLAGS |
485 STATION_INFO_BEACON_LOSS_COUNT;
ebe27c91
MSS		 486
487 do_posix_clock_monotonic_gettime(&uptime);
488 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
c5dd9c2b
LCC		 489
490 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
560d2682
JB		 491 sinfo->tx_bytes = 0;
492 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
493 sinfo->tx_bytes += sta->tx_bytes[ac];
494 packets += sta->tx_packets[ac];
495 }
496 sinfo->tx_packets = packets;
c5dd9c2b 497 sinfo->rx_bytes = sta->rx_bytes;
98c8a60a 498 sinfo->rx_packets = sta->rx_packets;
b206b4ef
BR		 499 sinfo->tx_retries = sta->tx_retry_count;
500 sinfo->tx_failed = sta->tx_retry_failed;
5a5c731a 501 sinfo->rx_dropped_misc = sta->rx_dropped;
a85e1d55 502 sinfo->beacon_loss_count = sta->beacon_loss_count;
c5dd9c2b 503
19deffbe
JL		 504 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
505 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
541a45a1 506 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
66572cfc
VG		 507 if (!local->ops->get_rssi ||
508 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
509 sinfo->signal = (s8)sta->last_signal;
541a45a1 510 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
420e7fab 511 }
ef0621e8
FF		 512 if (sta->chains) {
513 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
514 STATION_INFO_CHAIN_SIGNAL_AVG;
515
516 sinfo->chains = sta->chains;
517 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
518 sinfo->chain_signal[i] = sta->chain_signal_last[i];
519 sinfo->chain_signal_avg[i] =
520 (s8) -ewma_read(&sta->chain_signal_avg[i]);
521 }
522 }
420e7fab 523
6b62bf32 524 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
003e676a 525 sta_set_rate_info_rx(sta, &sinfo->rxrate);
420e7fab 526
902acc78 527 if (ieee80211_vif_is_mesh(&sdata->vif)) {
c5dd9c2b 528#ifdef CONFIG_MAC80211_MESH
c5dd9c2b
LCC		 529 sinfo->filled |= STATION_INFO_LLID |
530 STATION_INFO_PLID |
3f52b7e3
MP		 531 STATION_INFO_PLINK_STATE |
532 STATION_INFO_LOCAL_PM |
533 STATION_INFO_PEER_PM |
534 STATION_INFO_NONPEER_PM;
c5dd9c2b 535
6f101ef0
CYY		 536 sinfo->llid = sta->llid;
537 sinfo->plid = sta->plid;
c5dd9c2b 538 sinfo->plink_state = sta->plink_state;
d299a1f2
JC		 539 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
540 sinfo->filled |= STATION_INFO_T_OFFSET;
541 sinfo->t_offset = sta->t_offset;
542 }
3f52b7e3
MP		 543 sinfo->local_pm = sta->local_pm;
544 sinfo->peer_pm = sta->peer_pm;
545 sinfo->nonpeer_pm = sta->nonpeer_pm;
c5dd9c2b 546#endif
902acc78 547 }
f4263c98
PS		 548
549 sinfo->bss_param.flags = 0;
550 if (sdata->vif.bss_conf.use_cts_prot)
551 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
552 if (sdata->vif.bss_conf.use_short_preamble)
553 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
554 if (sdata->vif.bss_conf.use_short_slot)
555 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
556 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
557 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
7a724767
HS		 558
559 sinfo->sta_flags.set = 0;
560 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
561 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
562 BIT(NL80211_STA_FLAG_WME) |
563 BIT(NL80211_STA_FLAG_MFP) |
e4121562 564 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
d582cffb 565 BIT(NL80211_STA_FLAG_ASSOCIATED) |
e4121562 566 BIT(NL80211_STA_FLAG_TDLS_PEER);
7a724767
HS		 567 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
568 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
569 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
570 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
571 if (test_sta_flag(sta, WLAN_STA_WME))
572 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
573 if (test_sta_flag(sta, WLAN_STA_MFP))
574 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
575 if (test_sta_flag(sta, WLAN_STA_AUTH))
576 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
d582cffb
JB		 577 if (test_sta_flag(sta, WLAN_STA_ASSOC))
578 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
e4121562
HS		 579 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
580 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
c5dd9c2b
LCC		 581}
582
b1ab7925
BG		 583static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
584 "rx_packets", "rx_bytes", "wep_weak_iv_count",
585 "rx_duplicates", "rx_fragments", "rx_dropped",
586 "tx_packets", "tx_bytes", "tx_fragments",
587 "tx_filtered", "tx_retry_failed", "tx_retries",
3073a7c2
BG		 588 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
589 "channel", "noise", "ch_time", "ch_time_busy",
590 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
b1ab7925
BG		 591};
592#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
593
594static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
595 struct net_device *dev,
596 int sset)
597{
e352114f
BG		 598 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
599 int rv = 0;
600
b1ab7925 601 if (sset == ETH_SS_STATS)
e352114f
BG		 602 rv += STA_STATS_LEN;
603
604 rv += drv_get_et_sset_count(sdata, sset);
b1ab7925 605
e352114f
BG		 606 if (rv == 0)
607 return -EOPNOTSUPP;
608 return rv;
b1ab7925
BG		 609}
610
611static void ieee80211_get_et_stats(struct wiphy *wiphy,
612 struct net_device *dev,
613 struct ethtool_stats *stats,
614 u64 *data)
615{
616 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a
JB		 617 struct ieee80211_chanctx_conf *chanctx_conf;
618 struct ieee80211_channel *channel;
b1ab7925
BG		 619 struct sta_info *sta;
620 struct ieee80211_local *local = sdata->local;
3073a7c2
BG		 621 struct station_info sinfo;
622 struct survey_info survey;
623 int i, q;
624#define STA_STATS_SURVEY_LEN 7
b1ab7925
BG		 625
626 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
627
628#define ADD_STA_STATS(sta) \
629 do { \
630 data[i++] += sta->rx_packets; \
631 data[i++] += sta->rx_bytes; \
632 data[i++] += sta->wep_weak_iv_count; \
633 data[i++] += sta->num_duplicates; \
634 data[i++] += sta->rx_fragments; \
635 data[i++] += sta->rx_dropped; \
636 \
560d2682
JB		 637 data[i++] += sinfo.tx_packets; \
638 data[i++] += sinfo.tx_bytes; \
b1ab7925
BG		 639 data[i++] += sta->tx_fragments; \
640 data[i++] += sta->tx_filtered_count; \
641 data[i++] += sta->tx_retry_failed; \
642 data[i++] += sta->tx_retry_count; \
643 data[i++] += sta->beacon_loss_count; \
644 } while (0)
645
646 /* For Managed stations, find the single station based on BSSID
647 * and use that. For interface types, iterate through all available
648 * stations and add stats for any station that is assigned to this
649 * network device.
650 */
651
66572cfc 652 mutex_lock(&local->sta_mtx);
b1ab7925
BG		 653
654 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
655 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
3073a7c2
BG		 656
657 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
658 goto do_survey;
659
560d2682
JB		 660 sinfo.filled = 0;
661 sta_set_sinfo(sta, &sinfo);
662
3073a7c2
BG		 663 i = 0;
664 ADD_STA_STATS(sta);
665
666 data[i++] = sta->sta_state;
667
3073a7c2 668
5204267d 669 if (sinfo.filled & STATION_INFO_TX_BITRATE)
3073a7c2
BG		 670 data[i] = 100000 *
671 cfg80211_calculate_bitrate(&sinfo.txrate);
672 i++;
5204267d 673 if (sinfo.filled & STATION_INFO_RX_BITRATE)
3073a7c2
BG		 674 data[i] = 100000 *
675 cfg80211_calculate_bitrate(&sinfo.rxrate);
676 i++;
677
5204267d 678 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
3073a7c2
BG		 679 data[i] = (u8)sinfo.signal_avg;
680 i++;
b1ab7925 681 } else {
66572cfc 682 list_for_each_entry(sta, &local->sta_list, list) {
b1ab7925
BG		 683 /* Make sure this station belongs to the proper dev */
684 if (sta->sdata->dev != dev)
685 continue;
686
e13bae4f
JB		 687 sinfo.filled = 0;
688 sta_set_sinfo(sta, &sinfo);
b1ab7925
BG		 689 i = 0;
690 ADD_STA_STATS(sta);
b1ab7925
BG		 691 }
692 }
693
3073a7c2
BG		 694do_survey:
695 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
696 /* Get survey stats for current channel */
55de908a 697 survey.filled = 0;
3073a7c2 698
55de908a
JB		 699 rcu_read_lock();
700 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
701 if (chanctx_conf)
4bf88530 702 channel = chanctx_conf->def.chan;
55de908a
JB		 703 else
704 channel = NULL;
705 rcu_read_unlock();
706
707 if (channel) {
708 q = 0;
709 do {
710 survey.filled = 0;
711 if (drv_get_survey(local, q, &survey) != 0) {
712 survey.filled = 0;
713 break;
714 }
715 q++;
716 } while (channel != survey.channel);
3073a7c2
BG		 717 }
718
719 if (survey.filled)
720 data[i++] = survey.channel->center_freq;
721 else
722 data[i++] = 0;
723 if (survey.filled & SURVEY_INFO_NOISE_DBM)
724 data[i++] = (u8)survey.noise;
725 else
726 data[i++] = -1LL;
727 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
728 data[i++] = survey.channel_time;
729 else
730 data[i++] = -1LL;
731 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
732 data[i++] = survey.channel_time_busy;
733 else
734 data[i++] = -1LL;
735 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
736 data[i++] = survey.channel_time_ext_busy;
737 else
738 data[i++] = -1LL;
739 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
740 data[i++] = survey.channel_time_rx;
741 else
742 data[i++] = -1LL;
743 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
744 data[i++] = survey.channel_time_tx;
745 else
746 data[i++] = -1LL;
747
66572cfc 748 mutex_unlock(&local->sta_mtx);
e352114f 749
3073a7c2
BG		 750 if (WARN_ON(i != STA_STATS_LEN))
751 return;
752
e352114f 753 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
b1ab7925
BG		 754}
755
756static void ieee80211_get_et_strings(struct wiphy *wiphy,
757 struct net_device *dev,
758 u32 sset, u8 *data)
759{
e352114f
BG		 760 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
761 int sz_sta_stats = 0;
762
b1ab7925 763 if (sset == ETH_SS_STATS) {
e352114f 764 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
bd500af2 765 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
b1ab7925 766 }
e352114f 767 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
b1ab7925 768}
c5dd9c2b
LCC		 769
770static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
771 int idx, u8 *mac, struct station_info *sinfo)
772{
3b53fde8 773 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 774 struct ieee80211_local *local = sdata->local;
c5dd9c2b 775 struct sta_info *sta;
d0709a65
JB		 776 int ret = -ENOENT;
777
66572cfc 778 mutex_lock(&local->sta_mtx);
c5dd9c2b 779
3b53fde8 780 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 781 if (sta) {
782 ret = 0;
17741cdc 783 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 784 sta_set_sinfo(sta, sinfo);
785 }
c5dd9c2b 786
66572cfc 787 mutex_unlock(&local->sta_mtx);
c5dd9c2b 788
d0709a65 789 return ret;
c5dd9c2b
LCC		 790}
791
1289723e
HS		 792static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
793 int idx, struct survey_info *survey)
794{
795 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
796
1289723e
HS		 797 return drv_get_survey(local, idx, survey);
798}
799
7bbdd2d9 800static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
2ec600d6 801 u8 *mac, struct station_info *sinfo)
7bbdd2d9 802{
abe60632 803 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 804 struct ieee80211_local *local = sdata->local;
7bbdd2d9 805 struct sta_info *sta;
d0709a65 806 int ret = -ENOENT;
7bbdd2d9 807
66572cfc 808 mutex_lock(&local->sta_mtx);
7bbdd2d9 809
0e5ded5a 810 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 811 if (sta) {
812 ret = 0;
813 sta_set_sinfo(sta, sinfo);
814 }
815
66572cfc 816 mutex_unlock(&local->sta_mtx);
d0709a65
JB		 817
818 return ret;
7bbdd2d9
JB		 819}
820
55de908a 821static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
683b6d3b 822 struct cfg80211_chan_def *chandef)
3d9e6e12
JB		 823{
824 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a
JB		 825 struct ieee80211_sub_if_data *sdata;
826 int ret = 0;
3d9e6e12 827
4bf88530 828 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
55de908a 829 return 0;
3d9e6e12 830
34a3740d 831 mutex_lock(&local->mtx);
55de908a
JB		 832 mutex_lock(&local->iflist_mtx);
833 if (local->use_chanctx) {
834 sdata = rcu_dereference_protected(
835 local->monitor_sdata,
836 lockdep_is_held(&local->iflist_mtx));
837 if (sdata) {
838 ieee80211_vif_release_channel(sdata);
4bf88530 839 ret = ieee80211_vif_use_channel(sdata, chandef,
55de908a
JB		 840 IEEE80211_CHANCTX_EXCLUSIVE);
841 }
842 } else if (local->open_count == local->monitors) {
675a0b04 843 local->_oper_chandef = *chandef;
55de908a
JB		 844 ieee80211_hw_config(local, 0);
845 }
3d9e6e12 846
4bf88530
JB		 847 if (ret == 0)
848 local->monitor_chandef = *chandef;
55de908a 849 mutex_unlock(&local->iflist_mtx);
34a3740d 850 mutex_unlock(&local->mtx);
3d9e6e12 851
55de908a 852 return ret;
e8c9bd5b
JB		 853}
854
02945821 855static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
8860020e 856 const u8 *resp, size_t resp_len)
02945821 857{
aa7a0080 858 struct probe_resp *new, *old;
02945821
AN		 859
860 if (!resp || !resp_len)
aba4e6ff 861 return 1;
02945821 862
7ca133bc 863 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
02945821 864
aa7a0080 865 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
02945821
AN		 866 if (!new)
867 return -ENOMEM;
868
aa7a0080
ES		 869 new->len = resp_len;
870 memcpy(new->data, resp, resp_len);
02945821
AN		 871
872 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
aa7a0080
ES		 873 if (old)
874 kfree_rcu(old, rcu_head);
02945821
AN		 875
876 return 0;
877}
878
0ae07968
LC		 879static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
880 struct cfg80211_beacon_data *params)
5dfdaf58
JB		 881{
882 struct beacon_data *new, *old;
883 int new_head_len, new_tail_len;
8860020e
JB		 884 int size, err;
885 u32 changed = BSS_CHANGED_BEACON;
5dfdaf58 886
7ca133bc
SW		 887 old = sdata_dereference(sdata->u.ap.beacon, sdata);
888
5dfdaf58 889
5dfdaf58
JB		 890 /* Need to have a beacon head if we don't have one yet */
891 if (!params->head && !old)
8860020e 892 return -EINVAL;
5dfdaf58
JB		 893
894 /* new or old head? */
895 if (params->head)
896 new_head_len = params->head_len;
897 else
898 new_head_len = old->head_len;
899
900 /* new or old tail? */
901 if (params->tail || !old)
902 /* params->tail_len will be zero for !params->tail */
903 new_tail_len = params->tail_len;
904 else
905 new_tail_len = old->tail_len;
906
907 size = sizeof(*new) + new_head_len + new_tail_len;
908
909 new = kzalloc(size, GFP_KERNEL);
910 if (!new)
911 return -ENOMEM;
912
913 /* start filling the new info now */
914
5dfdaf58
JB		 915 /*
916 * pointers go into the block we allocated,
917 * memory is | beacon_data | head | tail |
918 */
919 new->head = ((u8 *) new) + sizeof(*new);
920 new->tail = new->head + new_head_len;
921 new->head_len = new_head_len;
922 new->tail_len = new_tail_len;
923
924 /* copy in head */
925 if (params->head)
926 memcpy(new->head, params->head, new_head_len);
927 else
928 memcpy(new->head, old->head, new_head_len);
929
930 /* copy in optional tail */
931 if (params->tail)
932 memcpy(new->tail, params->tail, new_tail_len);
933 else
934 if (old)
935 memcpy(new->tail, old->tail, new_tail_len);
936
02945821
AN		 937 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
938 params->probe_resp_len);
8860020e
JB		 939 if (err < 0)
940 return err;
941 if (err == 0)
02945821
AN		 942 changed |= BSS_CHANGED_AP_PROBE_RESP;
943
8860020e
JB		 944 rcu_assign_pointer(sdata->u.ap.beacon, new);
945
946 if (old)
947 kfree_rcu(old, rcu_head);
7827493b 948
8860020e 949 return changed;
5dfdaf58
JB		 950}
951
8860020e
JB		 952static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
953 struct cfg80211_ap_settings *params)
5dfdaf58 954{
8860020e 955 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
34a3740d 956 struct ieee80211_local *local = sdata->local;
5dfdaf58 957 struct beacon_data *old;
665c93a9 958 struct ieee80211_sub_if_data *vlan;
8860020e
JB		 959 u32 changed = BSS_CHANGED_BEACON_INT |
960 BSS_CHANGED_BEACON_ENABLED |
961 BSS_CHANGED_BEACON |
339afbf4
JB		 962 BSS_CHANGED_SSID |
963 BSS_CHANGED_P2P_PS;
8860020e 964 int err;
14db74bc 965
7ca133bc 966 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 967 if (old)
968 return -EALREADY;
969
04ecd257
JB		 970 /* TODO: make hostapd tell us what it wants */
971 sdata->smps_mode = IEEE80211_SMPS_OFF;
972 sdata->needed_rx_chains = sdata->local->rx_chains;
973
34a3740d 974 mutex_lock(&local->mtx);
cc901de1 975 sdata->radar_required = params->radar_required;
4bf88530 976 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 977 IEEE80211_CHANCTX_SHARED);
34a3740d 978 mutex_unlock(&local->mtx);
aa430da4
JB		 979 if (err)
980 return err;
1f4ac5a6 981 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
aa430da4 982
665c93a9
JB		 983 /*
984 * Apply control port protocol, this allows us to
985 * not encrypt dynamic WEP control frames.
986 */
987 sdata->control_port_protocol = params->crypto.control_port_ethertype;
988 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
2475b1cc
MS		 989 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
990 &params->crypto,
991 sdata->vif.type);
992
665c93a9
JB		 993 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
994 vlan->control_port_protocol =
995 params->crypto.control_port_ethertype;
996 vlan->control_port_no_encrypt =
997 params->crypto.control_port_no_encrypt;
2475b1cc
MS		 998 vlan->encrypt_headroom =
999 ieee80211_cs_headroom(sdata->local,
1000 &params->crypto,
1001 vlan->vif.type);
665c93a9
JB		 1002 }
1003
8860020e
JB		 1004 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1005 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 1006 sdata->vif.bss_conf.enable_beacon = true;
8860020e
JB		 1007
1008 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1009 if (params->ssid_len)
1010 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1011 params->ssid_len);
1012 sdata->vif.bss_conf.hidden_ssid =
1013 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1014
67baf663
JD		 1015 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1016 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1017 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1018 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1019 if (params->p2p_opp_ps)
1020 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1021 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 1022
8860020e
JB		 1023 err = ieee80211_assign_beacon(sdata, &params->beacon);
1024 if (err < 0)
1025 return err;
1026 changed |= err;
1027
1041638f
JB		 1028 err = drv_start_ap(sdata->local, sdata);
1029 if (err) {
7ca133bc
SW		 1030 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1031
1041638f
JB		 1032 if (old)
1033 kfree_rcu(old, rcu_head);
1034 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1035 return err;
1036 }
1037
057d5f4b 1038 ieee80211_recalc_dtim(local, sdata);
8860020e
JB		 1039 ieee80211_bss_info_change_notify(sdata, changed);
1040
3edaf3e6
JB		 1041 netif_carrier_on(dev);
1042 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1043 netif_carrier_on(vlan->dev);
1044
665c93a9 1045 return 0;
5dfdaf58
JB		 1046}
1047
8860020e
JB		 1048static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1049 struct cfg80211_beacon_data *params)
5dfdaf58 1050{
14db74bc 1051 struct ieee80211_sub_if_data *sdata;
5dfdaf58 1052 struct beacon_data *old;
8860020e 1053 int err;
5dfdaf58 1054
14db74bc 1055 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
dbd72850 1056 sdata_assert_lock(sdata);
14db74bc 1057
73da7d5b
SW		 1058 /* don't allow changing the beacon while CSA is in place - offset
1059 * of channel switch counter may change
1060 */
1061 if (sdata->vif.csa_active)
1062 return -EBUSY;
1063
7ca133bc 1064 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 1065 if (!old)
1066 return -ENOENT;
1067
8860020e
JB		 1068 err = ieee80211_assign_beacon(sdata, params);
1069 if (err < 0)
1070 return err;
1071 ieee80211_bss_info_change_notify(sdata, err);
1072 return 0;
5dfdaf58
JB		 1073}
1074
8860020e 1075static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 1076{
7b20b8e8
JB		 1077 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1078 struct ieee80211_sub_if_data *vlan;
1079 struct ieee80211_local *local = sdata->local;
1080 struct beacon_data *old_beacon;
1081 struct probe_resp *old_probe_resp;
d2859df5 1082 struct cfg80211_chan_def chandef;
14db74bc 1083
dbd72850
MK		 1084 sdata_assert_lock(sdata);
1085
7ca133bc 1086 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 1087 if (!old_beacon)
5dfdaf58 1088 return -ENOENT;
7ca133bc 1089 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 1090
73da7d5b
SW		 1091 /* abort any running channel switch */
1092 sdata->vif.csa_active = false;
1f3b8a2b
SW		 1093 kfree(sdata->u.ap.next_beacon);
1094 sdata->u.ap.next_beacon = NULL;
1095
687da132 1096 cancel_work_sync(&sdata->u.ap.request_smps_work);
73da7d5b 1097
7b20b8e8 1098 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 1099 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1100 netif_carrier_off(vlan->dev);
1101 netif_carrier_off(dev);
1102
7b20b8e8 1103 /* remove beacon and probe response */
a9b3cd7f 1104 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 1105 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1106 kfree_rcu(old_beacon, rcu_head);
1107 if (old_probe_resp)
1108 kfree_rcu(old_probe_resp, rcu_head);
8860020e 1109
e716251d 1110 __sta_info_flush(sdata, true);
7907c7d3 1111 ieee80211_free_keys(sdata, true);
75de9113 1112
d6a83228 1113 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 1114 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 1115 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 1116 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 1117
a6b368f6 1118 if (sdata->wdev.cac_started) {
d2859df5 1119 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 1120 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 1121 cfg80211_cac_event(sdata->dev, &chandef,
1122 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 1123 GFP_KERNEL);
1124 }
1125
1041638f
JB		 1126 drv_stop_ap(sdata->local, sdata);
1127
7b20b8e8
JB		 1128 /* free all potentially still buffered bcast frames */
1129 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1130 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1131
1f4ac5a6 1132 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
34a3740d 1133 mutex_lock(&local->mtx);
55de908a 1134 ieee80211_vif_release_channel(sdata);
34a3740d 1135 mutex_unlock(&local->mtx);
55de908a 1136
2d0ddec5 1137 return 0;
5dfdaf58
JB		 1138}
1139
4fd6931e
JB		 1140/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1141struct iapp_layer2_update {
1142 u8 da[ETH_ALEN]; /* broadcast */
1143 u8 sa[ETH_ALEN]; /* STA addr */
1144 __be16 len; /* 6 */
1145 u8 dsap; /* 0 */
1146 u8 ssap; /* 0 */
1147 u8 control;
1148 u8 xid_info[3];
bc10502d 1149} __packed;
4fd6931e
JB		 1150
1151static void ieee80211_send_layer2_update(struct sta_info *sta)
1152{
1153 struct iapp_layer2_update *msg;
1154 struct sk_buff *skb;
1155
1156 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1157 * bridge devices */
1158
1159 skb = dev_alloc_skb(sizeof(*msg));
1160 if (!skb)
1161 return;
1162 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1163
1164 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1165 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1166
e83e6541 1167 eth_broadcast_addr(msg->da);
17741cdc 1168 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 1169 msg->len = htons(6);
1170 msg->dsap = 0;
1171 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1172 msg->control = 0xaf; /* XID response lsb.1111F101.
1173 * F=0 (no poll command; unsolicited frame) */
1174 msg->xid_info[0] = 0x81; /* XID format identifier */
1175 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1176 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1177
d0709a65
JB		 1178 skb->dev = sta->sdata->dev;
1179 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 1180 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 1181 netif_rx_ni(skb);
4fd6931e
JB		 1182}
1183
d582cffb
JB		 1184static int sta_apply_auth_flags(struct ieee80211_local *local,
1185 struct sta_info *sta,
1186 u32 mask, u32 set)
1187{
1188 int ret;
1189
1190 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1191 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1192 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1193 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1194 if (ret)
1195 return ret;
1196 }
1197
1198 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1199 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1200 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1201 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1202 if (ret)
1203 return ret;
1204 }
1205
1206 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1207 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1208 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1209 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1210 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1211 else
1212 ret = 0;
1213 if (ret)
1214 return ret;
1215 }
1216
1217 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1218 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1219 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1220 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1221 if (ret)
1222 return ret;
1223 }
1224
1225 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1226 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1227 test_sta_flag(sta, WLAN_STA_AUTH)) {
1228 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1229 if (ret)
1230 return ret;
1231 }
1232
1233 return 0;
1234}
1235
d9a7ddb0
JB		 1236static int sta_apply_parameters(struct ieee80211_local *local,
1237 struct sta_info *sta,
1238 struct station_parameters *params)
4fd6931e 1239{
d9a7ddb0 1240 int ret = 0;
8318d78a 1241 struct ieee80211_supported_band *sband;
d0709a65 1242 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 1243 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1244 u32 mask, set;
4fd6931e 1245
55de908a 1246 sband = local->hw.wiphy->bands[band];
ae5eb026 1247
eccb8e8f
JB		 1248 mask = params->sta_flags_mask;
1249 set = params->sta_flags_set;
73651ee6 1250
d582cffb
JB		 1251 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1252 /*
1253 * In mesh mode, ASSOCIATED isn't part of the nl80211
1254 * API but must follow AUTHENTICATED for driver state.
1255 */
1256 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1257 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1258 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1259 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1260 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1261 /*
1262 * TDLS -- everything follows authorized, but
1263 * only becoming authorized is possible, not
1264 * going back
1265 */
1266 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1267 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1268 BIT(NL80211_STA_FLAG_ASSOCIATED);
1269 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1270 BIT(NL80211_STA_FLAG_ASSOCIATED);
1271 }
eccb8e8f 1272 }
4fd6931e 1273
d582cffb
JB		 1274 ret = sta_apply_auth_flags(local, sta, mask, set);
1275 if (ret)
1276 return ret;
d9a7ddb0 1277
eccb8e8f 1278 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1279 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1280 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1281 else
1282 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1283 }
4fd6931e 1284
eccb8e8f 1285 if (mask & BIT(NL80211_STA_FLAG_WME)) {
39df600a 1286 if (set & BIT(NL80211_STA_FLAG_WME)) {
c2c98fde 1287 set_sta_flag(sta, WLAN_STA_WME);
39df600a 1288 sta->sta.wme = true;
c2c98fde
JB		 1289 } else {
1290 clear_sta_flag(sta, WLAN_STA_WME);
1291 sta->sta.wme = false;
39df600a 1292 }
eccb8e8f 1293 }
5394af4d 1294
eccb8e8f 1295 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1296 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1297 set_sta_flag(sta, WLAN_STA_MFP);
1298 else
1299 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1300 }
b39c48fa 1301
07ba55d7 1302 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1303 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1304 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1305 else
1306 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1307 }
4fd6931e 1308
3b9ce80c
JB		 1309 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1310 sta->sta.uapsd_queues = params->uapsd_queues;
1311 sta->sta.max_sp = params->max_sp;
1312 }
9533b4ac 1313
51b50fbe
JB		 1314 /*
1315 * cfg80211 validates this (1-2007) and allows setting the AID
1316 * only when creating a new station entry
1317 */
1318 if (params->aid)
1319 sta->sta.aid = params->aid;
1320
73651ee6 1321 /*
ba23d206
JB		 1322 * Some of the following updates would be racy if called on an
1323 * existing station, via ieee80211_change_station(). However,
1324 * all such changes are rejected by cfg80211 except for updates
1325 * changing the supported rates on an existing but not yet used
1326 * TDLS peer.
73651ee6
JB		 1327 */
1328
4fd6931e
JB		 1329 if (params->listen_interval >= 0)
1330 sta->listen_interval = params->listen_interval;
1331
1332 if (params->supported_rates) {
2103dec1
SW		 1333 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1334 sband, params->supported_rates,
1335 params->supported_rates_len,
1336 &sta->sta.supp_rates[band]);
4fd6931e 1337 }
c5dd9c2b 1338
d9fe60de 1339 if (params->ht_capa)
ef96a842 1340 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1341 params->ht_capa, sta);
36aedc90 1342
f461be3e
MP		 1343 if (params->vht_capa)
1344 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1345 params->vht_capa, sta);
f461be3e 1346
9c3990aa 1347 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1348#ifdef CONFIG_MAC80211_MESH
39886b61 1349 u32 changed = 0;
77ee7c89
JB		 1350
1351 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1352 switch (params->plink_state) {
57cf8043 1353 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1354 if (sta->plink_state != NL80211_PLINK_ESTAB)
1355 changed = mesh_plink_inc_estab_count(
1356 sdata);
1357 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1358
1359 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1360 changed |= ieee80211_mps_set_sta_local_pm(sta,
1361 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1362 break;
1363 case NL80211_PLINK_LISTEN:
57cf8043 1364 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1365 case NL80211_PLINK_OPN_SNT:
1366 case NL80211_PLINK_OPN_RCVD:
1367 case NL80211_PLINK_CNF_RCVD:
1368 case NL80211_PLINK_HOLDING:
1369 if (sta->plink_state == NL80211_PLINK_ESTAB)
1370 changed = mesh_plink_dec_estab_count(
1371 sdata);
9c3990aa 1372 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1373
1374 ieee80211_mps_sta_status_update(sta);
446075d7
MP		 1375 changed |= ieee80211_mps_set_sta_local_pm(sta,
1376 NL80211_MESH_POWER_UNKNOWN);
9c3990aa
JC		 1377 break;
1378 default:
1379 /* nothing */
1380 break;
1381 }
77ee7c89
JB		 1382 }
1383
1384 switch (params->plink_action) {
1385 case NL80211_PLINK_ACTION_NO_ACTION:
1386 /* nothing */
1387 break;
1388 case NL80211_PLINK_ACTION_OPEN:
1389 changed |= mesh_plink_open(sta);
1390 break;
1391 case NL80211_PLINK_ACTION_BLOCK:
1392 changed |= mesh_plink_block(sta);
1393 break;
1617bab8 1394 }
3f52b7e3
MP		 1395
1396 if (params->local_pm)
39886b61
TP		 1397 changed |=
1398 ieee80211_mps_set_sta_local_pm(sta,
1399 params->local_pm);
6c751ef8 1400 ieee80211_mbss_info_change_notify(sdata, changed);
4daf50f2 1401#endif
902acc78 1402 }
d9a7ddb0
JB		 1403
1404 return 0;
4fd6931e
JB		 1405}
1406
1407static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1408 u8 *mac, struct station_parameters *params)
1409{
14db74bc 1410 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1411 struct sta_info *sta;
1412 struct ieee80211_sub_if_data *sdata;
73651ee6 1413 int err;
b8d476c8 1414 int layer2_update;
4fd6931e 1415
4fd6931e
JB		 1416 if (params->vlan) {
1417 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1418
05c914fe
JB		 1419 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1420 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1421 return -EINVAL;
1422 } else
1423 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1424
b203ca39 1425 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1426 return -EINVAL;
1427
1428 if (is_multicast_ether_addr(mac))
1429 return -EINVAL;
1430
1431 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1432 if (!sta)
1433 return -ENOMEM;
4fd6931e 1434
d582cffb
JB		 1435 /*
1436 * defaults -- if userspace wants something else we'll
1437 * change it accordingly in sta_apply_parameters()
1438 */
77ee7c89
JB		 1439 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1440 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1441 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1442 }
4fd6931e 1443
d9a7ddb0
JB		 1444 err = sta_apply_parameters(local, sta, params);
1445 if (err) {
1446 sta_info_free(local, sta);
1447 return err;
1448 }
4fd6931e 1449
d64cf63e 1450 /*
77ee7c89
JB		 1451 * for TDLS, rate control should be initialized only when
1452 * rates are known and station is marked authorized
d64cf63e
AN		 1453 */
1454 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1455 rate_control_rate_init(sta);
4fd6931e 1456
b8d476c8
JM		 1457 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1458 sdata->vif.type == NL80211_IFTYPE_AP;
1459
34e89507 1460 err = sta_info_insert_rcu(sta);
73651ee6 1461 if (err) {
73651ee6
JB		 1462 rcu_read_unlock();
1463 return err;
1464 }
1465
b8d476c8 1466 if (layer2_update)
73651ee6
JB		 1467 ieee80211_send_layer2_update(sta);
1468
1469 rcu_read_unlock();
1470
4fd6931e
JB		 1471 return 0;
1472}
1473
1474static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1475 u8 *mac)
1476{
14db74bc 1477 struct ieee80211_sub_if_data *sdata;
4fd6931e 1478
14db74bc
JB		 1479 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1480
34e89507
JB		 1481 if (mac)
1482 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 1483
b998e8bb 1484 sta_info_flush(sdata);
4fd6931e
JB		 1485 return 0;
1486}
1487
1488static int ieee80211_change_station(struct wiphy *wiphy,
77ee7c89 1489 struct net_device *dev, u8 *mac,
4fd6931e
JB		 1490 struct station_parameters *params)
1491{
abe60632 1492 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1493 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1494 struct sta_info *sta;
1495 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1496 enum cfg80211_station_type statype;
35b88623 1497 int err;
4fd6931e 1498
87be1e1e 1499 mutex_lock(&local->sta_mtx);
98dd6a57 1500
0e5ded5a 1501 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1502 if (!sta) {
77ee7c89
JB		 1503 err = -ENOENT;
1504 goto out_err;
98dd6a57 1505 }
4fd6931e 1506
77ee7c89
JB		 1507 switch (sdata->vif.type) {
1508 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1509 if (sdata->u.mesh.user_mpm)
eef941e6 1510 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1511 else
eef941e6 1512 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1513 break;
1514 case NL80211_IFTYPE_ADHOC:
1515 statype = CFG80211_STA_IBSS;
1516 break;
1517 case NL80211_IFTYPE_STATION:
1518 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1519 statype = CFG80211_STA_AP_STA;
1520 break;
1521 }
1522 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1523 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1524 else
1525 statype = CFG80211_STA_TDLS_PEER_SETUP;
1526 break;
1527 case NL80211_IFTYPE_AP:
1528 case NL80211_IFTYPE_AP_VLAN:
1529 statype = CFG80211_STA_AP_CLIENT;
1530 break;
1531 default:
1532 err = -EOPNOTSUPP;
1533 goto out_err;
bdd90d5e
JB		 1534 }
1535
77ee7c89
JB		 1536 err = cfg80211_check_station_change(wiphy, params, statype);
1537 if (err)
1538 goto out_err;
1539
d0709a65 1540 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1541 bool prev_4addr = false;
1542 bool new_4addr = false;
1543
4fd6931e
JB		 1544 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1545
9bc383de 1546 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1547 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1548 err = -EBUSY;
1549 goto out_err;
3305443c 1550 }
f14543ee 1551
cf778b00 1552 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1553 new_4addr = true;
1554 }
1555
1556 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1557 sta->sdata->u.vlan.sta) {
1558 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1559 prev_4addr = true;
f14543ee
FF		 1560 }
1561
14db74bc 1562 sta->sdata = vlansdata;
7e3ed02c
FF		 1563
1564 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1565 prev_4addr != new_4addr) {
1566 if (new_4addr)
1567 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1568 else
1569 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1570 }
1571
4fd6931e
JB		 1572 ieee80211_send_layer2_update(sta);
1573 }
1574
35b88623 1575 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1576 if (err)
1577 goto out_err;
4fd6931e 1578
77ee7c89
JB		 1579 /* When peer becomes authorized, init rate control as well */
1580 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1581 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
d64cf63e
AN		 1582 rate_control_rate_init(sta);
1583
87be1e1e 1584 mutex_unlock(&local->sta_mtx);
98dd6a57 1585
687da132
EG		 1586 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1587 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1588 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1589 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1590 sta_info_tx_streams(sta) != 1) {
1591 ht_dbg(sta->sdata,
1592 "%pM just authorized and MIMO capable - update SMPS\n",
1593 sta->sta.addr);
1594 ieee80211_send_smps_action(sta->sdata,
1595 sta->sdata->bss->req_smps,
1596 sta->sta.addr,
1597 sta->sdata->vif.bss_conf.bssid);
1598 }
1599
808118cb 1600 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1601 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1602 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1603 ieee80211_recalc_ps_vif(sdata);
1604 }
77ee7c89 1605
4fd6931e 1606 return 0;
77ee7c89
JB		 1607out_err:
1608 mutex_unlock(&local->sta_mtx);
1609 return err;
4fd6931e
JB		 1610}
1611
c5dd9c2b
LCC		 1612#ifdef CONFIG_MAC80211_MESH
1613static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1614 u8 *dst, u8 *next_hop)
1615{
14db74bc 1616 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1617 struct mesh_path *mpath;
1618 struct sta_info *sta;
c5dd9c2b 1619
14db74bc
JB		 1620 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1621
d0709a65 1622 rcu_read_lock();
abe60632 1623 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1624 if (!sta) {
1625 rcu_read_unlock();
c5dd9c2b 1626 return -ENOENT;
d0709a65 1627 }
c5dd9c2b 1628
ae76eef0
BC		 1629 mpath = mesh_path_add(sdata, dst);
1630 if (IS_ERR(mpath)) {
d0709a65 1631 rcu_read_unlock();
ae76eef0 1632 return PTR_ERR(mpath);
d0709a65 1633 }
c5dd9c2b 1634
c5dd9c2b 1635 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1636
c5dd9c2b
LCC		 1637 rcu_read_unlock();
1638 return 0;
1639}
1640
1641static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
bf7cd94d 1642 u8 *dst)
c5dd9c2b 1643{
f698d856
JBG		 1644 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1645
c5dd9c2b 1646 if (dst)
bf7cd94d 1647 return mesh_path_del(sdata, dst);
c5dd9c2b 1648
ece1a2e7 1649 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1650 return 0;
1651}
1652
1653static int ieee80211_change_mpath(struct wiphy *wiphy,
1654 struct net_device *dev,
1655 u8 *dst, u8 *next_hop)
1656{
14db74bc 1657 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1658 struct mesh_path *mpath;
1659 struct sta_info *sta;
1660
14db74bc
JB		 1661 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1662
d0709a65
JB		 1663 rcu_read_lock();
1664
abe60632 1665 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1666 if (!sta) {
1667 rcu_read_unlock();
c5dd9c2b 1668 return -ENOENT;
d0709a65 1669 }
c5dd9c2b 1670
bf7cd94d 1671 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1672 if (!mpath) {
1673 rcu_read_unlock();
c5dd9c2b
LCC		 1674 return -ENOENT;
1675 }
1676
1677 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1678
c5dd9c2b
LCC		 1679 rcu_read_unlock();
1680 return 0;
1681}
1682
1683static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1684 struct mpath_info *pinfo)
1685{
a3836e02
JB		 1686 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1687
1688 if (next_hop_sta)
1689 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1690 else
1691 memset(next_hop, 0, ETH_ALEN);
1692
7ce8c7a3
LAYS		 1693 memset(pinfo, 0, sizeof(*pinfo));
1694
f5ea9120
JB		 1695 pinfo->generation = mesh_paths_generation;
1696
c5dd9c2b 1697 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1698 MPATH_INFO_SN |
c5dd9c2b
LCC		 1699 MPATH_INFO_METRIC |
1700 MPATH_INFO_EXPTIME |
1701 MPATH_INFO_DISCOVERY_TIMEOUT |
1702 MPATH_INFO_DISCOVERY_RETRIES |
1703 MPATH_INFO_FLAGS;
1704
1705 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1706 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1707 pinfo->metric = mpath->metric;
1708 if (time_before(jiffies, mpath->exp_time))
1709 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1710 pinfo->discovery_timeout =
1711 jiffies_to_msecs(mpath->discovery_timeout);
1712 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1713 if (mpath->flags & MESH_PATH_ACTIVE)
1714 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1715 if (mpath->flags & MESH_PATH_RESOLVING)
1716 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1717 if (mpath->flags & MESH_PATH_SN_VALID)
1718 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1719 if (mpath->flags & MESH_PATH_FIXED)
1720 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1721 if (mpath->flags & MESH_PATH_RESOLVED)
1722 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1723}
1724
1725static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1726 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1727
1728{
14db74bc 1729 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1730 struct mesh_path *mpath;
1731
14db74bc
JB		 1732 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1733
c5dd9c2b 1734 rcu_read_lock();
bf7cd94d 1735 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1736 if (!mpath) {
1737 rcu_read_unlock();
1738 return -ENOENT;
1739 }
1740 memcpy(dst, mpath->dst, ETH_ALEN);
1741 mpath_set_pinfo(mpath, next_hop, pinfo);
1742 rcu_read_unlock();
1743 return 0;
1744}
1745
1746static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1747 int idx, u8 *dst, u8 *next_hop,
1748 struct mpath_info *pinfo)
1749{
14db74bc 1750 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1751 struct mesh_path *mpath;
1752
14db74bc
JB		 1753 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1754
c5dd9c2b 1755 rcu_read_lock();
bf7cd94d 1756 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1757 if (!mpath) {
1758 rcu_read_unlock();
1759 return -ENOENT;
1760 }
1761 memcpy(dst, mpath->dst, ETH_ALEN);
1762 mpath_set_pinfo(mpath, next_hop, pinfo);
1763 rcu_read_unlock();
1764 return 0;
1765}
93da9cc1 1766
24bdd9f4 1767static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1768 struct net_device *dev,
1769 struct mesh_config *conf)
1770{
1771 struct ieee80211_sub_if_data *sdata;
1772 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1773
93da9cc1 1774 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1775 return 0;
1776}
1777
1778static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1779{
1780 return (mask >> (parm-1)) & 0x1;
1781}
1782
c80d545d
JC		 1783static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1784 const struct mesh_setup *setup)
1785{
1786 u8 *new_ie;
1787 const u8 *old_ie;
4bb62344
CYY		 1788 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1789 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1790
581a8b0f 1791 /* allocate information elements */
c80d545d 1792 new_ie = NULL;
581a8b0f 1793 old_ie = ifmsh->ie;
c80d545d 1794
581a8b0f
JC		 1795 if (setup->ie_len) {
1796 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1797 GFP_KERNEL);
1798 if (!new_ie)
1799 return -ENOMEM;
1800 }
581a8b0f
JC		 1801 ifmsh->ie_len = setup->ie_len;
1802 ifmsh->ie = new_ie;
1803 kfree(old_ie);
c80d545d
JC		 1804
1805 /* now copy the rest of the setup parameters */
1806 ifmsh->mesh_id_len = setup->mesh_id_len;
1807 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1808 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1809 ifmsh->mesh_pp_id = setup->path_sel_proto;
1810 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1811 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1812 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1813 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1814 if (setup->is_authenticated)
1815 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1816 if (setup->is_secure)
1817 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1818
4bb62344
CYY		 1819 /* mcast rate setting in Mesh Node */
1820 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1821 sizeof(setup->mcast_rate));
ffb3cf30 1822 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1823
9bdbf04d
MP		 1824 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1825 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1826
c80d545d
JC		 1827 return 0;
1828}
1829
24bdd9f4 1830static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1831 struct net_device *dev, u32 mask,
1832 const struct mesh_config *nconf)
93da9cc1 1833{
1834 struct mesh_config *conf;
1835 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1836 struct ieee80211_if_mesh *ifmsh;
1837
93da9cc1 1838 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1839 ifmsh = &sdata->u.mesh;
93da9cc1 1840
93da9cc1 1841 /* Set the config options which we are interested in setting */
1842 conf = &(sdata->u.mesh.mshcfg);
1843 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1844 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1845 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1846 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1847 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1848 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1849 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1850 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1851 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1852 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1853 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1854 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1855 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1856 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1857 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1858 if (ifmsh->user_mpm)
1859 return -EBUSY;
93da9cc1 1860 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1861 }
d299a1f2
JC		 1862 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1863 conf->dot11MeshNbrOffsetMaxNeighbor =
1864 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1865 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1866 conf->dot11MeshHWMPmaxPREQretries =
1867 nconf->dot11MeshHWMPmaxPREQretries;
1868 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1869 conf->path_refresh_time = nconf->path_refresh_time;
1870 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1871 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1872 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1873 conf->dot11MeshHWMPactivePathTimeout =
1874 nconf->dot11MeshHWMPactivePathTimeout;
1875 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1876 conf->dot11MeshHWMPpreqMinInterval =
1877 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1878 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1879 conf->dot11MeshHWMPperrMinInterval =
1880 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1881 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1882 mask))
1883 conf->dot11MeshHWMPnetDiameterTraversalTime =
1884 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1885 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1886 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1887 ieee80211_mesh_root_setup(ifmsh);
1888 }
16dd7267 1889 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1890 /* our current gate announcement implementation rides on root
1891 * announcements, so require this ifmsh to also be a root node
1892 * */
1893 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1894 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1895 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1896 ieee80211_mesh_root_setup(ifmsh);
1897 }
16dd7267
JC		 1898 conf->dot11MeshGateAnnouncementProtocol =
1899 nconf->dot11MeshGateAnnouncementProtocol;
1900 }
a4f606ea 1901 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1902 conf->dot11MeshHWMPRannInterval =
1903 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1904 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1905 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1906 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1907 /* our RSSI threshold implementation is supported only for
1908 * devices that report signal in dBm.
1909 */
1910 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1911 return -ENOTSUPP;
1912 conf->rssi_threshold = nconf->rssi_threshold;
1913 }
70c33eaa
AN		 1914 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1915 conf->ht_opmode = nconf->ht_opmode;
1916 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1917 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1918 }
ac1073a6
CYY		 1919 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1920 conf->dot11MeshHWMPactivePathToRootTimeout =
1921 nconf->dot11MeshHWMPactivePathToRootTimeout;
1922 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1923 conf->dot11MeshHWMProotInterval =
1924 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1925 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1926 conf->dot11MeshHWMPconfirmationInterval =
1927 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1928 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1929 conf->power_mode = nconf->power_mode;
1930 ieee80211_mps_local_status_update(sdata);
1931 }
2b5e1967 1932 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1933 conf->dot11MeshAwakeWindowDuration =
1934 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1935 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1936 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1937 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1938 return 0;
1939}
1940
29cbe68c
JB		 1941static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1942 const struct mesh_config *conf,
1943 const struct mesh_setup *setup)
1944{
1945 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1946 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1947 int err;
29cbe68c 1948
c80d545d
JC		 1949 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1950 err = copy_mesh_setup(ifmsh, setup);
1951 if (err)
1952 return err;
cc1d2806 1953
04ecd257
JB		 1954 /* can mesh use other SMPS modes? */
1955 sdata->smps_mode = IEEE80211_SMPS_OFF;
1956 sdata->needed_rx_chains = sdata->local->rx_chains;
1957
34a3740d 1958 mutex_lock(&sdata->local->mtx);
4bf88530 1959 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1960 IEEE80211_CHANCTX_SHARED);
34a3740d 1961 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1962 if (err)
1963 return err;
1964
2b5e1967 1965 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1966}
1967
1968static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1969{
1970 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1971
1972 ieee80211_stop_mesh(sdata);
34a3740d 1973 mutex_lock(&sdata->local->mtx);
55de908a 1974 ieee80211_vif_release_channel(sdata);
34a3740d 1975 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1976
1977 return 0;
1978}
c5dd9c2b
LCC		 1979#endif
1980
9f1ba906
JM		 1981static int ieee80211_change_bss(struct wiphy *wiphy,
1982 struct net_device *dev,
1983 struct bss_parameters *params)
1984{
55de908a
JB		 1985 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1986 enum ieee80211_band band;
9f1ba906
JM		 1987 u32 changed = 0;
1988
7ca133bc 1989 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1990 return -ENOENT;
1991
1992 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1993
9f1ba906 1994 if (params->use_cts_prot >= 0) {
bda3933a 1995 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1996 changed |= BSS_CHANGED_ERP_CTS_PROT;
1997 }
1998 if (params->use_short_preamble >= 0) {
bda3933a 1999 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 2000 params->use_short_preamble;
2001 changed |= BSS_CHANGED_ERP_PREAMBLE;
2002 }
43d35343
FF		 2003
2004 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 2005 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 2006 sdata->vif.bss_conf.use_short_slot = true;
2007 changed |= BSS_CHANGED_ERP_SLOT;
2008 }
2009
9f1ba906 2010 if (params->use_short_slot_time >= 0) {
bda3933a 2011 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 2012 params->use_short_slot_time;
2013 changed |= BSS_CHANGED_ERP_SLOT;
2014 }
2015
90c97a04 2016 if (params->basic_rates) {
2103dec1
SW		 2017 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2018 wiphy->bands[band],
2019 params->basic_rates,
2020 params->basic_rates_len,
2021 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 2022 changed |= BSS_CHANGED_BASIC_RATES;
2023 }
2024
7b7b5e56
FF		 2025 if (params->ap_isolate >= 0) {
2026 if (params->ap_isolate)
2027 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2028 else
2029 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2030 }
2031
80d7e403
HS		 2032 if (params->ht_opmode >= 0) {
2033 sdata->vif.bss_conf.ht_operation_mode =
2034 (u16) params->ht_opmode;
2035 changed |= BSS_CHANGED_HT;
2036 }
2037
339afbf4 2038 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 2039 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2040 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2041 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2042 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 2043 changed |= BSS_CHANGED_P2P_PS;
2044 }
2045
67baf663
JD		 2046 if (params->p2p_opp_ps > 0) {
2047 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2048 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2049 changed |= BSS_CHANGED_P2P_PS;
2050 } else if (params->p2p_opp_ps == 0) {
2051 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2052 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 2053 changed |= BSS_CHANGED_P2P_PS;
2054 }
2055
9f1ba906
JM		 2056 ieee80211_bss_info_change_notify(sdata, changed);
2057
2058 return 0;
2059}
2060
31888487 2061static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 2062 struct net_device *dev,
31888487
JM		 2063 struct ieee80211_txq_params *params)
2064{
2065 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 2066 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 2067 struct ieee80211_tx_queue_params p;
2068
2069 if (!local->ops->conf_tx)
2070 return -EOPNOTSUPP;
2071
54bcbc69
JB		 2072 if (local->hw.queues < IEEE80211_NUM_ACS)
2073 return -EOPNOTSUPP;
2074
31888487
JM		 2075 memset(&p, 0, sizeof(p));
2076 p.aifs = params->aifs;
2077 p.cw_max = params->cwmax;
2078 p.cw_min = params->cwmin;
2079 p.txop = params->txop;
ab13315a
KV		 2080
2081 /*
2082 * Setting tx queue params disables u-apsd because it's only
2083 * called in master mode.
2084 */
2085 p.uapsd = false;
2086
a3304b0a
JB		 2087 sdata->tx_conf[params->ac] = p;
2088 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 2089 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 2090 "failed to set TX queue parameters for AC %d\n",
2091 params->ac);
31888487
JM		 2092 return -EINVAL;
2093 }
2094
7d25745d
JB		 2095 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2096
31888487
JM		 2097 return 0;
2098}
2099
665af4fc 2100#ifdef CONFIG_PM
ff1b6e69
JB		 2101static int ieee80211_suspend(struct wiphy *wiphy,
2102 struct cfg80211_wowlan *wowlan)
665af4fc 2103{
eecc4800 2104 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 2105}
2106
2107static int ieee80211_resume(struct wiphy *wiphy)
2108{
2109 return __ieee80211_resume(wiphy_priv(wiphy));
2110}
2111#else
2112#define ieee80211_suspend NULL
2113#define ieee80211_resume NULL
2114#endif
2115
2a519311 2116static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 2117 struct cfg80211_scan_request *req)
2118{
fd014284
JB		 2119 struct ieee80211_sub_if_data *sdata;
2120
2121 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 2122
2ca27bcf
JB		 2123 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2124 case NL80211_IFTYPE_STATION:
2125 case NL80211_IFTYPE_ADHOC:
2126 case NL80211_IFTYPE_MESH_POINT:
2127 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 2128 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 2129 break;
2130 case NL80211_IFTYPE_P2P_GO:
2131 if (sdata->local->ops->hw_scan)
2132 break;
e9d7732e
JB		 2133 /*
2134 * FIXME: implement NoA while scanning in software,
2135 * for now fall through to allow scanning only when
2136 * beaconing hasn't been configured yet
2137 */
2ca27bcf 2138 case NL80211_IFTYPE_AP:
5c95b940
AQ		 2139 /*
2140 * If the scan has been forced (and the driver supports
2141 * forcing), don't care about being beaconing already.
2142 * This will create problems to the attached stations (e.g. all
2143 * the frames sent while scanning on other channel will be
2144 * lost)
2145 */
2146 if (sdata->u.ap.beacon &&
2147 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2148 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2149 return -EOPNOTSUPP;
2150 break;
2151 default:
2152 return -EOPNOTSUPP;
2153 }
2a519311
JB		 2154
2155 return ieee80211_request_scan(sdata, req);
2156}
2157
79f460ca
LC		 2158static int
2159ieee80211_sched_scan_start(struct wiphy *wiphy,
2160 struct net_device *dev,
2161 struct cfg80211_sched_scan_request *req)
2162{
2163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2164
2165 if (!sdata->local->ops->sched_scan_start)
2166 return -EOPNOTSUPP;
2167
2168 return ieee80211_request_sched_scan_start(sdata, req);
2169}
2170
2171static int
85a9994a 2172ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 2173{
2174 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2175
2176 if (!sdata->local->ops->sched_scan_stop)
2177 return -EOPNOTSUPP;
2178
85a9994a 2179 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 2180}
2181
636a5d36
JM		 2182static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2183 struct cfg80211_auth_request *req)
2184{
77fdaa12 2185 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2186}
2187
2188static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2189 struct cfg80211_assoc_request *req)
2190{
77fdaa12 2191 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2192}
2193
2194static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2195 struct cfg80211_deauth_request *req)
636a5d36 2196{
63c9c5e7 2197 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2198}
2199
2200static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2201 struct cfg80211_disassoc_request *req)
636a5d36 2202{
63c9c5e7 2203 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2204}
2205
af8cdcd8
JB		 2206static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2207 struct cfg80211_ibss_params *params)
2208{
55de908a 2209 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2210}
2211
2212static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2213{
55de908a 2214 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2215}
2216
391e53e3
AQ		 2217static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2218 int rate[IEEE80211_NUM_BANDS])
2219{
2220 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2221
9887dbf5
CD		 2222 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2223 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 2224
2225 return 0;
2226}
2227
b9a5f8ca
JM		 2228static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2229{
2230 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2231 int err;
b9a5f8ca 2232
f23a4780
AN		 2233 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2234 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2235
2236 if (err)
2237 return err;
2238 }
2239
310bc676
LT		 2240 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2241 err = drv_set_coverage_class(local, wiphy->coverage_class);
2242
2243 if (err)
2244 return err;
2245 }
2246
b9a5f8ca 2247 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2248 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2249
24487981
JB		 2250 if (err)
2251 return err;
b9a5f8ca
JM		 2252 }
2253
8bc83c24
JB		 2254 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2255 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2256 return -EINVAL;
b9a5f8ca 2257 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2258 }
2259 if (changed & WIPHY_PARAM_RETRY_LONG) {
2260 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2261 return -EINVAL;
b9a5f8ca 2262 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2263 }
b9a5f8ca
JM		 2264 if (changed &
2265 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2266 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2267
2268 return 0;
2269}
2270
7643a2c3 2271static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2272 struct wireless_dev *wdev,
fa61cf70 2273 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2274{
2275 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2276 struct ieee80211_sub_if_data *sdata;
7643a2c3 2277
1ea6f9c0
JB		 2278 if (wdev) {
2279 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2280
2281 switch (type) {
2282 case NL80211_TX_POWER_AUTOMATIC:
2283 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2284 break;
2285 case NL80211_TX_POWER_LIMITED:
2286 case NL80211_TX_POWER_FIXED:
2287 if (mbm < 0 || (mbm % 100))
2288 return -EOPNOTSUPP;
2289 sdata->user_power_level = MBM_TO_DBM(mbm);
2290 break;
2291 }
2292
2293 ieee80211_recalc_txpower(sdata);
2294
2295 return 0;
2296 }
55de908a 2297
7643a2c3 2298 switch (type) {
fa61cf70 2299 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2300 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
7643a2c3 2301 break;
fa61cf70 2302 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2303 case NL80211_TX_POWER_FIXED:
2304 if (mbm < 0 || (mbm % 100))
2305 return -EOPNOTSUPP;
fa61cf70 2306 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2307 break;
7643a2c3
JB		 2308 }
2309
1ea6f9c0
JB		 2310 mutex_lock(&local->iflist_mtx);
2311 list_for_each_entry(sdata, &local->interfaces, list)
2312 sdata->user_power_level = local->user_power_level;
2313 list_for_each_entry(sdata, &local->interfaces, list)
2314 ieee80211_recalc_txpower(sdata);
2315 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2316
2317 return 0;
2318}
2319
c8442118
JB		 2320static int ieee80211_get_tx_power(struct wiphy *wiphy,
2321 struct wireless_dev *wdev,
2322 int *dbm)
7643a2c3
JB		 2323{
2324 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2325 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2326
1ea6f9c0
JB		 2327 if (!local->use_chanctx)
2328 *dbm = local->hw.conf.power_level;
2329 else
2330 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2331
7643a2c3
JB		 2332 return 0;
2333}
2334
ab737a4f 2335static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2336 const u8 *addr)
ab737a4f
JB		 2337{
2338 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2339
2340 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2341
2342 return 0;
2343}
2344
1f87f7d3
JB		 2345static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2346{
2347 struct ieee80211_local *local = wiphy_priv(wiphy);
2348
2349 drv_rfkill_poll(local);
2350}
2351
aff89a9b 2352#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2353static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2354 struct wireless_dev *wdev,
2355 void *data, int len)
aff89a9b
JB		 2356{
2357 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2358 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2359
2360 if (!local->ops->testmode_cmd)
2361 return -EOPNOTSUPP;
2362
52981cd7
DS		 2363 if (wdev) {
2364 struct ieee80211_sub_if_data *sdata;
2365
2366 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2367 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2368 vif = &sdata->vif;
2369 }
2370
2371 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2372}
71063f0e
WYG		 2373
2374static int ieee80211_testmode_dump(struct wiphy *wiphy,
2375 struct sk_buff *skb,
2376 struct netlink_callback *cb,
2377 void *data, int len)
2378{
2379 struct ieee80211_local *local = wiphy_priv(wiphy);
2380
2381 if (!local->ops->testmode_dump)
2382 return -EOPNOTSUPP;
2383
2384 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2385}
aff89a9b
JB		 2386#endif
2387
687da132
EG		 2388int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2389 enum ieee80211_smps_mode smps_mode)
2390{
2391 struct sta_info *sta;
2392 enum ieee80211_smps_mode old_req;
2393 int i;
2394
2395 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2396 return -EINVAL;
2397
2398 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2399 return 0;
2400
2401 old_req = sdata->u.ap.req_smps;
2402 sdata->u.ap.req_smps = smps_mode;
2403
2404 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2405 if (old_req == smps_mode ||
2406 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2407 return 0;
2408
2409 /* If no associated stations, there's no need to do anything */
2410 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2411 sdata->smps_mode = smps_mode;
2412 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2413 return 0;
2414 }
2415
2416 ht_dbg(sdata,
2417 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2418 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2419
2420 mutex_lock(&sdata->local->sta_mtx);
2421 for (i = 0; i < STA_HASH_SIZE; i++) {
2422 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2423 lockdep_is_held(&sdata->local->sta_mtx));
2424 sta;
2425 sta = rcu_dereference_protected(sta->hnext,
2426 lockdep_is_held(&sdata->local->sta_mtx))) {
2427 /*
2428 * Only stations associated to our AP and
2429 * associated VLANs
2430 */
2431 if (sta->sdata->bss != &sdata->u.ap)
2432 continue;
2433
2434 /* This station doesn't support MIMO - skip it */
2435 if (sta_info_tx_streams(sta) == 1)
2436 continue;
2437
2438 /*
2439 * Don't wake up a STA just to send the action frame
2440 * unless we are getting more restrictive.
2441 */
2442 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2443 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2444 smps_mode)) {
2445 ht_dbg(sdata,
2446 "Won't send SMPS to sleeping STA %pM\n",
2447 sta->sta.addr);
2448 continue;
2449 }
2450
2451 /*
2452 * If the STA is not authorized, wait until it gets
2453 * authorized and the action frame will be sent then.
2454 */
2455 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2456 continue;
2457
2458 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2459 ieee80211_send_smps_action(sdata, smps_mode,
2460 sta->sta.addr,
2461 sdata->vif.bss_conf.bssid);
2462 }
2463 }
2464 mutex_unlock(&sdata->local->sta_mtx);
2465
2466 sdata->smps_mode = smps_mode;
2467 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2468
2469 return 0;
2470}
2471
2472int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2473 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2474{
2475 const u8 *ap;
2476 enum ieee80211_smps_mode old_req;
2477 int err;
2478
8d61ffa5 2479 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2480
687da132
EG		 2481 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2482 return -EINVAL;
2483
0f78231b
JB		 2484 old_req = sdata->u.mgd.req_smps;
2485 sdata->u.mgd.req_smps = smps_mode;
2486
2487 if (old_req == smps_mode &&
2488 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2489 return 0;
2490
2491 /*
2492 * If not associated, or current association is not an HT
04ecd257
JB		 2493 * association, there's no need to do anything, just store
2494 * the new value until we associate.
0f78231b
JB		 2495 */
2496 if (!sdata->u.mgd.associated ||
4bf88530 2497 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2498 return 0;
0f78231b 2499
0c1ad2ca 2500 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2501
2502 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2503 if (sdata->u.mgd.powersave)
2504 smps_mode = IEEE80211_SMPS_DYNAMIC;
2505 else
2506 smps_mode = IEEE80211_SMPS_OFF;
2507 }
2508
2509 /* send SM PS frame to AP */
2510 err = ieee80211_send_smps_action(sdata, smps_mode,
2511 ap, ap);
2512 if (err)
2513 sdata->u.mgd.req_smps = old_req;
2514
2515 return err;
2516}
2517
bc92afd9
JB		 2518static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2519 bool enabled, int timeout)
2520{
2521 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2522 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2523
2d3db210 2524 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2525 return -EOPNOTSUPP;
2526
bc92afd9
JB		 2527 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2528 return -EOPNOTSUPP;
2529
2530 if (enabled == sdata->u.mgd.powersave &&
ff616381 2531 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2532 return 0;
2533
2534 sdata->u.mgd.powersave = enabled;
ff616381 2535 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2536
0f78231b 2537 /* no change, but if automatic follow powersave */
ed405be5 2538 sdata_lock(sdata);
687da132 2539 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2540 sdata_unlock(sdata);
0f78231b 2541
bc92afd9
JB		 2542 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2543 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2544
2545 ieee80211_recalc_ps(local, -1);
ab095877 2546 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2547
2548 return 0;
2549}
2550
a97c13c3
JO		 2551static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2552 struct net_device *dev,
2553 s32 rssi_thold, u32 rssi_hyst)
2554{
2555 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2556 struct ieee80211_vif *vif = &sdata->vif;
2557 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2558
a97c13c3
JO		 2559 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2560 rssi_hyst == bss_conf->cqm_rssi_hyst)
2561 return 0;
2562
2563 bss_conf->cqm_rssi_thold = rssi_thold;
2564 bss_conf->cqm_rssi_hyst = rssi_hyst;
2565
2566 /* tell the driver upon association, unless already associated */
ea086359
JB		 2567 if (sdata->u.mgd.associated &&
2568 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2569 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2570
2571 return 0;
2572}
2573
9930380f
JB		 2574static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2575 struct net_device *dev,
2576 const u8 *addr,
2577 const struct cfg80211_bitrate_mask *mask)
2578{
2579 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2580 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2581 int i, ret;
2c7e6bc9 2582
554a43d5
EP		 2583 if (!ieee80211_sdata_running(sdata))
2584 return -ENETDOWN;
2585
bdbfd6b5
SM		 2586 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2587 ret = drv_set_bitrate_mask(local, sdata, mask);
2588 if (ret)
2589 return ret;
2590 }
9930380f 2591
19468413 2592 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2593 struct ieee80211_supported_band *sband = wiphy->bands[i];
2594 int j;
2595
37eb0b16 2596 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2597 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2598 sizeof(mask->control[i].ht_mcs));
2ffbe6d3
FF		 2599
2600 sdata->rc_has_mcs_mask[i] = false;
2601 if (!sband)
2602 continue;
2603
2604 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2605 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2606 sdata->rc_has_mcs_mask[i] = true;
2607 break;
2608 }
19468413 2609 }
9930380f 2610
37eb0b16 2611 return 0;
9930380f
JB		 2612}
2613
2eb278e0
JB		 2614static int ieee80211_start_roc_work(struct ieee80211_local *local,
2615 struct ieee80211_sub_if_data *sdata,
2616 struct ieee80211_channel *channel,
2eb278e0 2617 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2618 struct sk_buff *txskb,
2619 enum ieee80211_roc_type type)
2eb278e0
JB		 2620{
2621 struct ieee80211_roc_work *roc, *tmp;
2622 bool queued = false;
21f83589 2623 int ret;
21f83589
JB		 2624
2625 lockdep_assert_held(&local->mtx);
2626
fe57d9f5
JB		 2627 if (local->use_chanctx && !local->ops->remain_on_channel)
2628 return -EOPNOTSUPP;
2629
2eb278e0
JB		 2630 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2631 if (!roc)
2632 return -ENOMEM;
2633
2fae062e
IP		 2634 /*
2635 * If the duration is zero, then the driver
2636 * wouldn't actually do anything. Set it to
2637 * 10 for now.
2638 *
2639 * TODO: cancel the off-channel operation
2640 * when we get the SKB's TX status and
2641 * the wait time was zero before.
2642 */
2643 if (!duration)
2644 duration = 10;
2645
2eb278e0 2646 roc->chan = channel;
2eb278e0
JB		 2647 roc->duration = duration;
2648 roc->req_duration = duration;
2649 roc->frame = txskb;
d339d5ca 2650 roc->type = type;
2eb278e0
JB		 2651 roc->mgmt_tx_cookie = (unsigned long)txskb;
2652 roc->sdata = sdata;
2653 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2654 INIT_LIST_HEAD(&roc->dependents);
2655
2656 /* if there's one pending or we're scanning, queue this one */
164eb02d
SW		 2657 if (!list_empty(&local->roc_list) ||
2658 local->scanning || local->radar_detect_enabled)
2eb278e0
JB		 2659 goto out_check_combine;
2660
2661 /* if not HW assist, just queue & schedule work */
2662 if (!local->ops->remain_on_channel) {
2663 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2664 goto out_queue;
2665 }
2666
2667 /* otherwise actually kick it off here (for error handling) */
2668
d339d5ca 2669 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2670 if (ret) {
2eb278e0
JB		 2671 kfree(roc);
2672 return ret;
21f83589
JB		 2673 }
2674
2eb278e0
JB		 2675 roc->started = true;
2676 goto out_queue;
2677
2678 out_check_combine:
2679 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2680 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2681 continue;
2682
2683 /*
2684 * Extend this ROC if possible:
2685 *
2686 * If it hasn't started yet, just increase the duration
2687 * and add the new one to the list of dependents.
d339d5ca
IP		 2688 * If the type of the new ROC has higher priority, modify the
2689 * type of the previous one to match that of the new one.
2eb278e0
JB		 2690 */
2691 if (!tmp->started) {
2692 list_add_tail(&roc->list, &tmp->dependents);
2693 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2694 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2695 queued = true;
2696 break;
2697 }
2698
2699 /* If it has already started, it's more difficult ... */
2700 if (local->ops->remain_on_channel) {
2701 unsigned long j = jiffies;
2702
2703 /*
2704 * In the offloaded ROC case, if it hasn't begun, add
2705 * this new one to the dependent list to be handled
d339d5ca 2706 * when the master one begins. If it has begun,
2eb278e0
JB		 2707 * check that there's still a minimum time left and
2708 * if so, start this one, transmitting the frame, but
d339d5ca 2709 * add it to the list directly after this one with
2eb278e0
JB		 2710 * a reduced time so we'll ask the driver to execute
2711 * it right after finishing the previous one, in the
2712 * hope that it'll also be executed right afterwards,
2713 * effectively extending the old one.
2714 * If there's no minimum time left, just add it to the
2715 * normal list.
d339d5ca
IP		 2716 * TODO: the ROC type is ignored here, assuming that it
2717 * is better to immediately use the current ROC.
2eb278e0
JB		 2718 */
2719 if (!tmp->hw_begun) {
2720 list_add_tail(&roc->list, &tmp->dependents);
2721 queued = true;
2722 break;
2723 }
2724
2725 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2726 tmp->hw_start_time +
2727 msecs_to_jiffies(tmp->duration))) {
2728 int new_dur;
2729
2730 ieee80211_handle_roc_started(roc);
2731
2732 new_dur = roc->duration -
2733 jiffies_to_msecs(tmp->hw_start_time +
2734 msecs_to_jiffies(
2735 tmp->duration) -
2736 j);
2737
2738 if (new_dur > 0) {
2739 /* add right after tmp */
2740 list_add(&roc->list, &tmp->list);
2741 } else {
2742 list_add_tail(&roc->list,
2743 &tmp->dependents);
2744 }
2745 queued = true;
2746 }
2747 } else if (del_timer_sync(&tmp->work.timer)) {
2748 unsigned long new_end;
2749
2750 /*
2751 * In the software ROC case, cancel the timer, if
2752 * that fails then the finish work is already
2753 * queued/pending and thus we queue the new ROC
2754 * normally, if that succeeds then we can extend
2755 * the timer duration and TX the frame (if any.)
2756 */
2757
2758 list_add_tail(&roc->list, &tmp->dependents);
2759 queued = true;
2760
2761 new_end = jiffies + msecs_to_jiffies(roc->duration);
2762
2763 /* ok, it was started & we canceled timer */
2764 if (time_after(new_end, tmp->work.timer.expires))
2765 mod_timer(&tmp->work.timer, new_end);
2766 else
2767 add_timer(&tmp->work.timer);
2768
2769 ieee80211_handle_roc_started(roc);
2770 }
2771 break;
2772 }
2773
2774 out_queue:
2775 if (!queued)
2776 list_add_tail(&roc->list, &local->roc_list);
2777
2778 /*
50febf6a 2779 * cookie is either the roc cookie (for normal roc)
2eb278e0
JB		 2780 * or the SKB (for mgmt TX)
2781 */
50febf6a
JB		 2782 if (!txskb) {
2783 /* local->mtx protects this */
2784 local->roc_cookie_counter++;
2785 roc->cookie = local->roc_cookie_counter;
2786 /* wow, you wrapped 64 bits ... more likely a bug */
2787 if (WARN_ON(roc->cookie == 0)) {
2788 roc->cookie = 1;
2789 local->roc_cookie_counter++;
2790 }
2791 *cookie = roc->cookie;
2792 } else {
2eb278e0 2793 *cookie = (unsigned long)txskb;
50febf6a 2794 }
2eb278e0
JB		 2795
2796 return 0;
21f83589
JB		 2797}
2798
b8bc4b0a 2799static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2800 struct wireless_dev *wdev,
b8bc4b0a 2801 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2802 unsigned int duration,
2803 u64 *cookie)
2804{
71bbc994 2805 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2806 struct ieee80211_local *local = sdata->local;
2eb278e0 2807 int ret;
21f83589 2808
2eb278e0 2809 mutex_lock(&local->mtx);
42d97a59 2810 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2811 duration, cookie, NULL,
2812 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2813 mutex_unlock(&local->mtx);
b8bc4b0a 2814
2eb278e0 2815 return ret;
b8bc4b0a
JB		 2816}
2817
2eb278e0
JB		 2818static int ieee80211_cancel_roc(struct ieee80211_local *local,
2819 u64 cookie, bool mgmt_tx)
21f83589 2820{
2eb278e0 2821 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2822 int ret;
2823
2eb278e0
JB		 2824 mutex_lock(&local->mtx);
2825 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2826 struct ieee80211_roc_work *dep, *tmp2;
2827
2828 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2829 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2830 continue;
2831 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2832 continue;
2833 /* found dependent item -- just remove it */
2834 list_del(&dep->list);
2835 mutex_unlock(&local->mtx);
2836
3fbd45ca 2837 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2838 return 0;
2839 }
2840
50febf6a 2841 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2842 continue;
2843 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2844 continue;
21f83589 2845
2eb278e0
JB		 2846 found = roc;
2847 break;
2848 }
21f83589 2849
2eb278e0
JB		 2850 if (!found) {
2851 mutex_unlock(&local->mtx);
2852 return -ENOENT;
2853 }
21f83589 2854
e979e33c
JB		 2855 /*
2856 * We found the item to cancel, so do that. Note that it
2857 * may have dependents, which we also cancel (and send
2858 * the expired signal for.) Not doing so would be quite
2859 * tricky here, but we may need to fix it later.
2860 */
2861
2eb278e0
JB		 2862 if (local->ops->remain_on_channel) {
2863 if (found->started) {
2864 ret = drv_cancel_remain_on_channel(local);
2865 if (WARN_ON_ONCE(ret)) {
2866 mutex_unlock(&local->mtx);
2867 return ret;
2868 }
2869 }
21f83589 2870
2eb278e0 2871 list_del(&found->list);
21f83589 2872
0f6b3f59
JB		 2873 if (found->started)
2874 ieee80211_start_next_roc(local);
2eb278e0 2875 mutex_unlock(&local->mtx);
21f83589 2876
3fbd45ca 2877 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2878 } else {
2879 /* work may be pending so use it all the time */
2880 found->abort = true;
2881 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2882
21f83589
JB		 2883 mutex_unlock(&local->mtx);
2884
2eb278e0
JB		 2885 /* work will clean up etc */
2886 flush_delayed_work(&found->work);
3fbd45ca
JB		 2887 WARN_ON(!found->to_be_freed);
2888 kfree(found);
21f83589 2889 }
b8bc4b0a 2890
2eb278e0 2891 return 0;
b8bc4b0a
JB		 2892}
2893
2eb278e0 2894static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2895 struct wireless_dev *wdev,
2eb278e0 2896 u64 cookie)
f30221e4 2897{
71bbc994 2898 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2899 struct ieee80211_local *local = sdata->local;
f30221e4 2900
2eb278e0 2901 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2902}
2903
164eb02d
SW		 2904static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2905 struct net_device *dev,
2906 struct cfg80211_chan_def *chandef)
2907{
2908 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2909 struct ieee80211_local *local = sdata->local;
2910 unsigned long timeout;
2911 int err;
2912
34a3740d
JB		 2913 mutex_lock(&local->mtx);
2914 if (!list_empty(&local->roc_list) || local->scanning) {
2915 err = -EBUSY;
2916 goto out_unlock;
2917 }
164eb02d
SW		 2918
2919 /* whatever, but channel contexts should not complain about that one */
2920 sdata->smps_mode = IEEE80211_SMPS_OFF;
2921 sdata->needed_rx_chains = local->rx_chains;
2922 sdata->radar_required = true;
2923
164eb02d
SW		 2924 err = ieee80211_vif_use_channel(sdata, chandef,
2925 IEEE80211_CHANCTX_SHARED);
164eb02d 2926 if (err)
34a3740d 2927 goto out_unlock;
164eb02d
SW		 2928
2929 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2930 ieee80211_queue_delayed_work(&sdata->local->hw,
2931 &sdata->dfs_cac_timer_work, timeout);
2932
34a3740d
JB		 2933 out_unlock:
2934 mutex_unlock(&local->mtx);
2935 return err;
164eb02d
SW		 2936}
2937
73da7d5b
SW		 2938static struct cfg80211_beacon_data *
2939cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2940{
2941 struct cfg80211_beacon_data *new_beacon;
2942 u8 *pos;
2943 int len;
2944
2945 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2946 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2947 beacon->probe_resp_len;
2948
2949 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2950 if (!new_beacon)
2951 return NULL;
2952
2953 pos = (u8 *)(new_beacon + 1);
2954 if (beacon->head_len) {
2955 new_beacon->head_len = beacon->head_len;
2956 new_beacon->head = pos;
2957 memcpy(pos, beacon->head, beacon->head_len);
2958 pos += beacon->head_len;
2959 }
2960 if (beacon->tail_len) {
2961 new_beacon->tail_len = beacon->tail_len;
2962 new_beacon->tail = pos;
2963 memcpy(pos, beacon->tail, beacon->tail_len);
2964 pos += beacon->tail_len;
2965 }
2966 if (beacon->beacon_ies_len) {
2967 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2968 new_beacon->beacon_ies = pos;
2969 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2970 pos += beacon->beacon_ies_len;
2971 }
2972 if (beacon->proberesp_ies_len) {
2973 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2974 new_beacon->proberesp_ies = pos;
2975 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2976 pos += beacon->proberesp_ies_len;
2977 }
2978 if (beacon->assocresp_ies_len) {
2979 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2980 new_beacon->assocresp_ies = pos;
2981 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2982 pos += beacon->assocresp_ies_len;
2983 }
2984 if (beacon->probe_resp_len) {
2985 new_beacon->probe_resp_len = beacon->probe_resp_len;
2986 beacon->probe_resp = pos;
2987 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2988 pos += beacon->probe_resp_len;
2989 }
2990
2991 return new_beacon;
2992}
2993
66e01cf9 2994void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2995{
66e01cf9 2996 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2997
66e01cf9
LC		 2998 ieee80211_queue_work(&sdata->local->hw,
2999 &sdata->csa_finalize_work);
3000}
3001EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 3002
66e01cf9
LC		 3003static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3004{
3005 struct ieee80211_local *local = sdata->local;
3006 int err, changed = 0;
73da7d5b 3007
dbd72850
MK		 3008 sdata_assert_lock(sdata);
3009
34a3740d 3010 mutex_lock(&local->mtx);
cc901de1 3011 sdata->radar_required = sdata->csa_radar_required;
33787fc4 3012 err = ieee80211_vif_change_channel(sdata, &changed);
34a3740d 3013 mutex_unlock(&local->mtx);
73da7d5b 3014 if (WARN_ON(err < 0))
66e01cf9 3015 return;
73da7d5b 3016
7578d575 3017 if (!local->use_chanctx) {
33787fc4 3018 local->_oper_chandef = sdata->csa_chandef;
7578d575
AN		 3019 ieee80211_hw_config(local, 0);
3020 }
3021
e487eaeb 3022 sdata->vif.csa_active = false;
cd7760e6
SW		 3023 switch (sdata->vif.type) {
3024 case NL80211_IFTYPE_AP:
3025 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
97518af1
MK		 3026 kfree(sdata->u.ap.next_beacon);
3027 sdata->u.ap.next_beacon = NULL;
3028
cd7760e6 3029 if (err < 0)
66e01cf9 3030 return;
cd7760e6 3031 changed |= err;
cd7760e6
SW		 3032 break;
3033 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 3034 err = ieee80211_ibss_finish_csa(sdata);
3035 if (err < 0)
3036 return;
3037 changed |= err;
cd7760e6 3038 break;
b8456a14
CYY		 3039#ifdef CONFIG_MAC80211_MESH
3040 case NL80211_IFTYPE_MESH_POINT:
3041 err = ieee80211_mesh_finish_csa(sdata);
3042 if (err < 0)
66e01cf9 3043 return;
faf046e7 3044 changed |= err;
b8456a14
CYY		 3045 break;
3046#endif
cd7760e6
SW		 3047 default:
3048 WARN_ON(1);
66e01cf9 3049 return;
cd7760e6 3050 }
73da7d5b 3051
faf046e7
MK		 3052 ieee80211_bss_info_change_notify(sdata, changed);
3053
73da7d5b
SW		 3054 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3055 IEEE80211_MAX_QUEUE_MAP,
3056 IEEE80211_QUEUE_STOP_REASON_CSA);
3057
33787fc4 3058 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
66e01cf9
LC		 3059}
3060
3061void ieee80211_csa_finalize_work(struct work_struct *work)
3062{
3063 struct ieee80211_sub_if_data *sdata =
3064 container_of(work, struct ieee80211_sub_if_data,
3065 csa_finalize_work);
3066
3067 sdata_lock(sdata);
3068 /* AP might have been stopped while waiting for the lock. */
3069 if (!sdata->vif.csa_active)
3070 goto unlock;
3071
3072 if (!ieee80211_sdata_running(sdata))
3073 goto unlock;
3074
3075 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 3076
3077unlock:
3078 sdata_unlock(sdata);
73da7d5b
SW		 3079}
3080
82a8e17d
LC		 3081int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3082 struct cfg80211_csa_settings *params)
73da7d5b
SW		 3083{
3084 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3085 struct ieee80211_local *local = sdata->local;
3086 struct ieee80211_chanctx_conf *chanctx_conf;
3087 struct ieee80211_chanctx *chanctx;
c6da674a 3088 struct ieee80211_if_mesh __maybe_unused *ifmsh;
66e01cf9 3089 int err, num_chanctx, changed = 0;
73da7d5b 3090
dbd72850 3091 sdata_assert_lock(sdata);
7ca133bc 3092
73da7d5b
SW		 3093 if (!list_empty(&local->roc_list) || local->scanning)
3094 return -EBUSY;
3095
3096 if (sdata->wdev.cac_started)
3097 return -EBUSY;
3098
3099 if (cfg80211_chandef_identical(&params->chandef,
3100 &sdata->vif.bss_conf.chandef))
3101 return -EINVAL;
3102
3103 rcu_read_lock();
3104 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3105 if (!chanctx_conf) {
3106 rcu_read_unlock();
3107 return -EBUSY;
3108 }
3109
3110 /* don't handle for multi-VIF cases */
3111 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
3112 if (chanctx->refcount > 1) {
3113 rcu_read_unlock();
3114 return -EBUSY;
3115 }
3116 num_chanctx = 0;
3117 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3118 num_chanctx++;
3119 rcu_read_unlock();
3120
3121 if (num_chanctx > 1)
3122 return -EBUSY;
3123
3124 /* don't allow another channel switch if one is already active. */
3125 if (sdata->vif.csa_active)
3126 return -EBUSY;
3127
73da7d5b
SW		 3128 switch (sdata->vif.type) {
3129 case NL80211_IFTYPE_AP:
cd7760e6
SW		 3130 sdata->u.ap.next_beacon =
3131 cfg80211_beacon_dup(&params->beacon_after);
3132 if (!sdata->u.ap.next_beacon)
3133 return -ENOMEM;
3134
66e01cf9
LC		 3135 /*
3136 * With a count of 0, we don't have to wait for any
3137 * TBTT before switching, so complete the CSA
3138 * immediately. In theory, with a count == 1 we
3139 * should delay the switch until just before the next
3140 * TBTT, but that would complicate things so we switch
3141 * immediately too. If we would delay the switch
3142 * until the next TBTT, we would have to set the probe
3143 * response here.
3144 *
3145 * TODO: A channel switch with count <= 1 without
3146 * sending a CSA action frame is kind of useless,
3147 * because the clients won't know we're changing
3148 * channels. The action frame must be implemented
3149 * either here or in the userspace.
3150 */
3151 if (params->count <= 1)
3152 break;
3153
3154 sdata->csa_counter_offset_beacon =
3155 params->counter_offset_beacon;
3156 sdata->csa_counter_offset_presp = params->counter_offset_presp;
cd7760e6
SW		 3157 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3158 if (err < 0) {
3159 kfree(sdata->u.ap.next_beacon);
3160 return err;
3161 }
66e01cf9
LC		 3162 changed |= err;
3163
cd7760e6
SW		 3164 break;
3165 case NL80211_IFTYPE_ADHOC:
3166 if (!sdata->vif.bss_conf.ibss_joined)
3167 return -EINVAL;
3168
3169 if (params->chandef.width != sdata->u.ibss.chandef.width)
3170 return -EINVAL;
3171
3172 switch (params->chandef.width) {
3173 case NL80211_CHAN_WIDTH_40:
3174 if (cfg80211_get_chandef_type(&params->chandef) !=
3175 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3176 return -EINVAL;
3177 case NL80211_CHAN_WIDTH_5:
3178 case NL80211_CHAN_WIDTH_10:
3179 case NL80211_CHAN_WIDTH_20_NOHT:
3180 case NL80211_CHAN_WIDTH_20:
3181 break;
3182 default:
3183 return -EINVAL;
3184 }
3185
3186 /* changes into another band are not supported */
3187 if (sdata->u.ibss.chandef.chan->band !=
3188 params->chandef.chan->band)
3189 return -EINVAL;
3190
66e01cf9
LC		 3191 /* see comments in the NL80211_IFTYPE_AP block */
3192 if (params->count > 1) {
3193 err = ieee80211_ibss_csa_beacon(sdata, params);
3194 if (err < 0)
3195 return err;
3196 changed |= err;
3197 }
3198
3199 ieee80211_send_action_csa(sdata, params);
3200
73da7d5b 3201 break;
c6da674a
CYY		 3202#ifdef CONFIG_MAC80211_MESH
3203 case NL80211_IFTYPE_MESH_POINT:
3204 ifmsh = &sdata->u.mesh;
3205
c6da674a
CYY		 3206 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3207 return -EINVAL;
3208
3209 /* changes into another band are not supported */
3210 if (sdata->vif.bss_conf.chandef.chan->band !=
3211 params->chandef.chan->band)
3212 return -EINVAL;
3213
c782bf8c 3214 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 3215 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 3216 if (!ifmsh->pre_value)
3217 ifmsh->pre_value = 1;
3218 else
3219 ifmsh->pre_value++;
3220 }
0cb4d4dc 3221
66e01cf9
LC		 3222 /* see comments in the NL80211_IFTYPE_AP block */
3223 if (params->count > 1) {
3224 err = ieee80211_mesh_csa_beacon(sdata, params);
3225 if (err < 0) {
3226 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3227 return err;
3228 }
3229 changed |= err;
3f718fd8 3230 }
66e01cf9
LC		 3231
3232 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3233 ieee80211_send_action_csa(sdata, params);
3234
c6da674a
CYY		 3235 break;
3236#endif
73da7d5b
SW		 3237 default:
3238 return -EOPNOTSUPP;
3239 }
3240
73da7d5b
SW		 3241 sdata->csa_radar_required = params->radar_required;
3242
3243 if (params->block_tx)
3244 ieee80211_stop_queues_by_reason(&local->hw,
3245 IEEE80211_MAX_QUEUE_MAP,
3246 IEEE80211_QUEUE_STOP_REASON_CSA);
3247
33787fc4 3248 sdata->csa_chandef = params->chandef;
73da7d5b
SW		 3249 sdata->vif.csa_active = true;
3250
66e01cf9
LC		 3251 if (changed) {
3252 ieee80211_bss_info_change_notify(sdata, changed);
3253 drv_channel_switch_beacon(sdata, &params->chandef);
3254 } else {
3255 /* if the beacon didn't change, we can finalize immediately */
3256 ieee80211_csa_finalize(sdata);
3257 }
73da7d5b
SW		 3258
3259 return 0;
3260}
3261
71bbc994 3262static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3263 struct cfg80211_mgmt_tx_params *params,
3264 u64 *cookie)
026331c4 3265{
71bbc994 3266 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d
JB		 3267 struct ieee80211_local *local = sdata->local;
3268 struct sk_buff *skb;
3269 struct sta_info *sta;
b176e629 3270 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3271 bool need_offchan = false;
e247bd90 3272 u32 flags;
2eb278e0 3273 int ret;
f7ca38df 3274
b176e629 3275 if (params->dont_wait_for_ack)
e247bd90
JB		 3276 flags = IEEE80211_TX_CTL_NO_ACK;
3277 else
3278 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3279 IEEE80211_TX_CTL_REQ_TX_STATUS;
3280
b176e629 3281 if (params->no_cck)
aad14ceb
RM		 3282 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3283
9d38d85d
JB		 3284 switch (sdata->vif.type) {
3285 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3286 if (!sdata->vif.bss_conf.ibss_joined)
3287 need_offchan = true;
3288 /* fall through */
3289#ifdef CONFIG_MAC80211_MESH
3290 case NL80211_IFTYPE_MESH_POINT:
3291 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3292 !sdata->u.mesh.mesh_id_len)
3293 need_offchan = true;
3294 /* fall through */
3295#endif
663fcafd
JB		 3296 case NL80211_IFTYPE_AP:
3297 case NL80211_IFTYPE_AP_VLAN:
3298 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3299 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3300 !ieee80211_vif_is_mesh(&sdata->vif) &&
3301 !rcu_access_pointer(sdata->bss->beacon))
3302 need_offchan = true;
663fcafd 3303 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3304 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3305 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3306 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3307 break;
3308 rcu_read_lock();
3309 sta = sta_info_get(sdata, mgmt->da);
3310 rcu_read_unlock();
3311 if (!sta)
3312 return -ENOLINK;
3313 break;
3314 case NL80211_IFTYPE_STATION:
663fcafd 3315 case NL80211_IFTYPE_P2P_CLIENT:
2eb278e0
JB		 3316 if (!sdata->u.mgd.associated)
3317 need_offchan = true;
9d38d85d 3318 break;
f142c6b9
JB		 3319 case NL80211_IFTYPE_P2P_DEVICE:
3320 need_offchan = true;
3321 break;
9d38d85d
JB		 3322 default:
3323 return -EOPNOTSUPP;
3324 }
3325
f7aeb6fb
AQ		 3326 /* configurations requiring offchan cannot work if no channel has been
3327 * specified
3328 */
b176e629 3329 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3330 return -EINVAL;
3331
2eb278e0
JB		 3332 mutex_lock(&local->mtx);
3333
3334 /* Check if the operating channel is the requested channel */
3335 if (!need_offchan) {
55de908a
JB		 3336 struct ieee80211_chanctx_conf *chanctx_conf;
3337
3338 rcu_read_lock();
3339 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3340
f7aeb6fb 3341 if (chanctx_conf) {
b176e629
AO		 3342 need_offchan = params->chan &&
3343 (params->chan !=
3344 chanctx_conf->def.chan);
3345 } else if (!params->chan) {
f7aeb6fb
AQ		 3346 ret = -EINVAL;
3347 rcu_read_unlock();
3348 goto out_unlock;
3349 } else {
2eb278e0 3350 need_offchan = true;
f7aeb6fb 3351 }
55de908a 3352 rcu_read_unlock();
2eb278e0
JB		 3353 }
3354
b176e629 3355 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3356 ret = -EBUSY;
3357 goto out_unlock;
3358 }
3359
b176e629 3360 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3361 if (!skb) {
3362 ret = -ENOMEM;
3363 goto out_unlock;
3364 }
9d38d85d
JB		 3365 skb_reserve(skb, local->hw.extra_tx_headroom);
3366
b176e629 3367 memcpy(skb_put(skb, params->len), params->buf, params->len);
9d38d85d
JB		 3368
3369 IEEE80211_SKB_CB(skb)->flags = flags;
3370
3371 skb->dev = sdata->dev;
9d38d85d 3372
2eb278e0 3373 if (!need_offchan) {
7f9f78ab 3374 *cookie = (unsigned long) skb;
f30221e4 3375 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3376 ret = 0;
3377 goto out_unlock;
f30221e4
JB		 3378 }
3379
6c17b77b
SF		 3380 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3381 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2eb278e0
JB		 3382 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3383 IEEE80211_SKB_CB(skb)->hw_queue =
3384 local->hw.offchannel_tx_hw_queue;
f30221e4 3385
2eb278e0 3386 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3387 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3388 params->wait, cookie, skb,
d339d5ca 3389 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3390 if (ret)
3391 kfree_skb(skb);
3392 out_unlock:
3393 mutex_unlock(&local->mtx);
3394 return ret;
026331c4
JM		 3395}
3396
f30221e4 3397static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3398 struct wireless_dev *wdev,
f30221e4
JB		 3399 u64 cookie)
3400{
71bbc994 3401 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3402
2eb278e0 3403 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3404}
3405
7be5086d 3406static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3407 struct wireless_dev *wdev,
7be5086d
JB		 3408 u16 frame_type, bool reg)
3409{
3410 struct ieee80211_local *local = wiphy_priv(wiphy);
3411
6abe0563 3412 switch (frame_type) {
6abe0563
WH		 3413 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3414 if (reg)
3415 local->probe_req_reg++;
3416 else
3417 local->probe_req_reg--;
7be5086d 3418
35f5149e
FF		 3419 if (!local->open_count)
3420 break;
3421
6abe0563
WH		 3422 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3423 break;
3424 default:
3425 break;
3426 }
7be5086d
JB		 3427}
3428
15d96753
BR		 3429static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3430{
3431 struct ieee80211_local *local = wiphy_priv(wiphy);
3432
3433 if (local->started)
3434 return -EOPNOTSUPP;
3435
3436 return drv_set_antenna(local, tx_ant, rx_ant);
3437}
3438
3439static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3440{
3441 struct ieee80211_local *local = wiphy_priv(wiphy);
3442
3443 return drv_get_antenna(local, tx_ant, rx_ant);
3444}
3445
38c09159
JL		 3446static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3447{
3448 struct ieee80211_local *local = wiphy_priv(wiphy);
3449
3450 return drv_set_ringparam(local, tx, rx);
3451}
3452
3453static void ieee80211_get_ringparam(struct wiphy *wiphy,
3454 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3455{
3456 struct ieee80211_local *local = wiphy_priv(wiphy);
3457
3458 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3459}
3460
c68f4b89
JB		 3461static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3462 struct net_device *dev,
3463 struct cfg80211_gtk_rekey_data *data)
3464{
3465 struct ieee80211_local *local = wiphy_priv(wiphy);
3466 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3467
3468 if (!local->ops->set_rekey_data)
3469 return -EOPNOTSUPP;
3470
3471 drv_set_rekey_data(local, sdata, data);
3472
3473 return 0;
3474}
3475
dfe018bf
AN		 3476static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3477{
3478 u8 *pos = (void *)skb_put(skb, 7);
3479
3480 *pos++ = WLAN_EID_EXT_CAPABILITY;
3481 *pos++ = 5; /* len */
3482 *pos++ = 0x0;
3483 *pos++ = 0x0;
3484 *pos++ = 0x0;
3485 *pos++ = 0x0;
3486 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3487}
3488
3489static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3490{
3491 struct ieee80211_local *local = sdata->local;
3492 u16 capab;
3493
3494 capab = 0;
55de908a 3495 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
dfe018bf
AN		 3496 return capab;
3497
3498 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3499 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3500 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3501 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3502
3503 return capab;
3504}
3505
3506static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3507 u8 *peer, u8 *bssid)
3508{
3509 struct ieee80211_tdls_lnkie *lnkid;
3510
3511 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3512
3513 lnkid->ie_type = WLAN_EID_LINK_ID;
3514 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3515
3516 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3517 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3518 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3519}
3520
3521static int
3522ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3523 u8 *peer, u8 action_code, u8 dialog_token,
3524 u16 status_code, struct sk_buff *skb)
3525{
3526 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3527 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3528 struct ieee80211_tdls_data *tf;
3529
3530 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3531
3532 memcpy(tf->da, peer, ETH_ALEN);
3533 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3534 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3535 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3536
3537 switch (action_code) {
3538 case WLAN_TDLS_SETUP_REQUEST:
3539 tf->category = WLAN_CATEGORY_TDLS;
3540 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3541
3542 skb_put(skb, sizeof(tf->u.setup_req));
3543 tf->u.setup_req.dialog_token = dialog_token;
3544 tf->u.setup_req.capability =
3545 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3546
55de908a
JB		 3547 ieee80211_add_srates_ie(sdata, skb, false, band);
3548 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3549 ieee80211_tdls_add_ext_capab(skb);
3550 break;
3551 case WLAN_TDLS_SETUP_RESPONSE:
3552 tf->category = WLAN_CATEGORY_TDLS;
3553 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3554
3555 skb_put(skb, sizeof(tf->u.setup_resp));
3556 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3557 tf->u.setup_resp.dialog_token = dialog_token;
3558 tf->u.setup_resp.capability =
3559 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3560
55de908a
JB		 3561 ieee80211_add_srates_ie(sdata, skb, false, band);
3562 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3563 ieee80211_tdls_add_ext_capab(skb);
3564 break;
3565 case WLAN_TDLS_SETUP_CONFIRM:
3566 tf->category = WLAN_CATEGORY_TDLS;
3567 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3568
3569 skb_put(skb, sizeof(tf->u.setup_cfm));
3570 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3571 tf->u.setup_cfm.dialog_token = dialog_token;
3572 break;
3573 case WLAN_TDLS_TEARDOWN:
3574 tf->category = WLAN_CATEGORY_TDLS;
3575 tf->action_code = WLAN_TDLS_TEARDOWN;
3576
3577 skb_put(skb, sizeof(tf->u.teardown));
3578 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3579 break;
3580 case WLAN_TDLS_DISCOVERY_REQUEST:
3581 tf->category = WLAN_CATEGORY_TDLS;
3582 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3583
3584 skb_put(skb, sizeof(tf->u.discover_req));
3585 tf->u.discover_req.dialog_token = dialog_token;
3586 break;
3587 default:
3588 return -EINVAL;
3589 }
3590
3591 return 0;
3592}
3593
3594static int
3595ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3596 u8 *peer, u8 action_code, u8 dialog_token,
3597 u16 status_code, struct sk_buff *skb)
3598{
3599 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3600 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3601 struct ieee80211_mgmt *mgmt;
3602
3603 mgmt = (void *)skb_put(skb, 24);
3604 memset(mgmt, 0, 24);
3605 memcpy(mgmt->da, peer, ETH_ALEN);
3606 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3607 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3608
3609 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3610 IEEE80211_STYPE_ACTION);
3611
3612 switch (action_code) {
3613 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3614 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3615 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3616 mgmt->u.action.u.tdls_discover_resp.action_code =
3617 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3618 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3619 dialog_token;
3620 mgmt->u.action.u.tdls_discover_resp.capability =
3621 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3622
55de908a
JB		 3623 ieee80211_add_srates_ie(sdata, skb, false, band);
3624 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3625 ieee80211_tdls_add_ext_capab(skb);
3626 break;
3627 default:
3628 return -EINVAL;
3629 }
3630
3631 return 0;
3632}
3633
3634static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3635 u8 *peer, u8 action_code, u8 dialog_token,
3636 u16 status_code, const u8 *extra_ies,
3637 size_t extra_ies_len)
3638{
3639 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3640 struct ieee80211_local *local = sdata->local;
dfe018bf
AN		 3641 struct sk_buff *skb = NULL;
3642 bool send_direct;
3643 int ret;
3644
3645 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3646 return -ENOTSUPP;
3647
3648 /* make sure we are in managed mode, and associated */
3649 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3650 !sdata->u.mgd.associated)
3651 return -EINVAL;
3652
bdcbd8e0
JB		 3653 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3654 action_code, peer);
dfe018bf
AN		 3655
3656 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3657 max(sizeof(struct ieee80211_mgmt),
3658 sizeof(struct ieee80211_tdls_data)) +
3659 50 + /* supported rates */
3660 7 + /* ext capab */
3661 extra_ies_len +
3662 sizeof(struct ieee80211_tdls_lnkie));
3663 if (!skb)
3664 return -ENOMEM;
3665
dfe018bf
AN		 3666 skb_reserve(skb, local->hw.extra_tx_headroom);
3667
3668 switch (action_code) {
3669 case WLAN_TDLS_SETUP_REQUEST:
3670 case WLAN_TDLS_SETUP_RESPONSE:
3671 case WLAN_TDLS_SETUP_CONFIRM:
3672 case WLAN_TDLS_TEARDOWN:
3673 case WLAN_TDLS_DISCOVERY_REQUEST:
3674 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3675 action_code, dialog_token,
3676 status_code, skb);
3677 send_direct = false;
3678 break;
3679 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3680 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3681 dialog_token, status_code,
3682 skb);
3683 send_direct = true;
3684 break;
3685 default:
3686 ret = -ENOTSUPP;
3687 break;
3688 }
3689
3690 if (ret < 0)
3691 goto fail;
3692
3693 if (extra_ies_len)
3694 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3695
3696 /* the TDLS link IE is always added last */
3697 switch (action_code) {
3698 case WLAN_TDLS_SETUP_REQUEST:
3699 case WLAN_TDLS_SETUP_CONFIRM:
3700 case WLAN_TDLS_TEARDOWN:
3701 case WLAN_TDLS_DISCOVERY_REQUEST:
3702 /* we are the initiator */
3703 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3704 sdata->u.mgd.bssid);
3705 break;
3706 case WLAN_TDLS_SETUP_RESPONSE:
3707 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3708 /* we are the responder */
3709 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3710 sdata->u.mgd.bssid);
3711 break;
3712 default:
3713 ret = -ENOTSUPP;
3714 goto fail;
3715 }
3716
3717 if (send_direct) {
3718 ieee80211_tx_skb(sdata, skb);
3719 return 0;
3720 }
3721
3722 /*
3723 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3724 * we should default to AC_VI.
3725 */
3726 switch (action_code) {
3727 case WLAN_TDLS_SETUP_REQUEST:
3728 case WLAN_TDLS_SETUP_RESPONSE:
3729 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3730 skb->priority = 2;
3731 break;
3732 default:
3733 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3734 skb->priority = 5;
3735 break;
3736 }
3737
3738 /* disable bottom halves when entering the Tx path */
3739 local_bh_disable();
3740 ret = ieee80211_subif_start_xmit(skb, dev);
3741 local_bh_enable();
3742
3743 return ret;
3744
3745fail:
3746 dev_kfree_skb(skb);
3747 return ret;
3748}
3749
3750static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3751 u8 *peer, enum nl80211_tdls_operation oper)
3752{
941c93cd 3753 struct sta_info *sta;
dfe018bf
AN		 3754 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3755
3756 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3757 return -ENOTSUPP;
3758
3759 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3760 return -EINVAL;
3761
bdcbd8e0 3762 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
dfe018bf
AN		 3763
3764 switch (oper) {
3765 case NL80211_TDLS_ENABLE_LINK:
941c93cd
AN		 3766 rcu_read_lock();
3767 sta = sta_info_get(sdata, peer);
3768 if (!sta) {
3769 rcu_read_unlock();
3770 return -ENOLINK;
3771 }
3772
c2c98fde 3773 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
941c93cd 3774 rcu_read_unlock();
dfe018bf
AN		 3775 break;
3776 case NL80211_TDLS_DISABLE_LINK:
3777 return sta_info_destroy_addr(sdata, peer);
3778 case NL80211_TDLS_TEARDOWN:
3779 case NL80211_TDLS_SETUP:
3780 case NL80211_TDLS_DISCOVERY_REQ:
3781 /* We don't support in-driver setup/teardown/discovery */
3782 return -ENOTSUPP;
3783 default:
3784 return -ENOTSUPP;
3785 }
3786
3787 return 0;
3788}
3789
06500736
JB		 3790static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3791 const u8 *peer, u64 *cookie)
3792{
3793 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3794 struct ieee80211_local *local = sdata->local;
3795 struct ieee80211_qos_hdr *nullfunc;
3796 struct sk_buff *skb;
3797 int size = sizeof(*nullfunc);
3798 __le16 fc;
3799 bool qos;
3800 struct ieee80211_tx_info *info;
3801 struct sta_info *sta;
55de908a
JB		 3802 struct ieee80211_chanctx_conf *chanctx_conf;
3803 enum ieee80211_band band;
06500736
JB		 3804
3805 rcu_read_lock();
55de908a
JB		 3806 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3807 if (WARN_ON(!chanctx_conf)) {
3808 rcu_read_unlock();
3809 return -EINVAL;
3810 }
4bf88530 3811 band = chanctx_conf->def.chan->band;
03bb7f42 3812 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3813 if (sta) {
06500736 3814 qos = test_sta_flag(sta, WLAN_STA_WME);
b4487c2d
JB		 3815 } else {
3816 rcu_read_unlock();
06500736 3817 return -ENOLINK;
b4487c2d 3818 }
06500736
JB		 3819
3820 if (qos) {
3821 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3822 IEEE80211_STYPE_QOS_NULLFUNC |
3823 IEEE80211_FCTL_FROMDS);
3824 } else {
3825 size -= 2;
3826 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3827 IEEE80211_STYPE_NULLFUNC |
3828 IEEE80211_FCTL_FROMDS);
3829 }
3830
3831 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a
JB		 3832 if (!skb) {
3833 rcu_read_unlock();
06500736 3834 return -ENOMEM;
55de908a 3835 }
06500736
JB		 3836
3837 skb->dev = dev;
3838
3839 skb_reserve(skb, local->hw.extra_tx_headroom);
3840
3841 nullfunc = (void *) skb_put(skb, size);
3842 nullfunc->frame_control = fc;
3843 nullfunc->duration_id = 0;
3844 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3845 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3846 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3847 nullfunc->seq_ctrl = 0;
3848
3849 info = IEEE80211_SKB_CB(skb);
3850
3851 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3852 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3853
3854 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3855 skb->priority = 7;
3856 if (qos)
3857 nullfunc->qos_ctrl = cpu_to_le16(7);
3858
3859 local_bh_disable();
55de908a 3860 ieee80211_xmit(sdata, skb, band);
06500736 3861 local_bh_enable();
55de908a 3862 rcu_read_unlock();
06500736
JB		 3863
3864 *cookie = (unsigned long) skb;
3865 return 0;
3866}
3867
683b6d3b
JB		 3868static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3869 struct wireless_dev *wdev,
3870 struct cfg80211_chan_def *chandef)
5b7ccaf3 3871{
55de908a 3872 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3873 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3874 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3875 int ret = -ENODATA;
55de908a
JB		 3876
3877 rcu_read_lock();
feda3027
JB		 3878 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3879 if (chanctx_conf) {
3880 *chandef = chanctx_conf->def;
3881 ret = 0;
3882 } else if (local->open_count > 0 &&
3883 local->open_count == local->monitors &&
3884 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3885 if (local->use_chanctx)
3886 *chandef = local->monitor_chandef;
3887 else
675a0b04 3888 *chandef = local->_oper_chandef;
683b6d3b 3889 ret = 0;
55de908a
JB		 3890 }
3891 rcu_read_unlock();
5b7ccaf3 3892
683b6d3b 3893 return ret;
5b7ccaf3
JB		 3894}
3895
6d52563f
JB		 3896#ifdef CONFIG_PM
3897static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3898{
3899 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3900}
3901#endif
3902
32db6b54
KP		 3903static int ieee80211_set_qos_map(struct wiphy *wiphy,
3904 struct net_device *dev,
3905 struct cfg80211_qos_map *qos_map)
3906{
3907 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3908 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3909
3910 if (qos_map) {
3911 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3912 if (!new_qos_map)
3913 return -ENOMEM;
3914 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3915 } else {
3916 /* A NULL qos_map was passed to disable QoS mapping */
3917 new_qos_map = NULL;
3918 }
3919
194ff52d 3920 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3921 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3922 if (old_qos_map)
3923 kfree_rcu(old_qos_map, rcu_head);
3924
3925 return 0;
3926}
3927
8a47cea7 3928const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3929 .add_virtual_intf = ieee80211_add_iface,
3930 .del_virtual_intf = ieee80211_del_iface,
42613db7 3931 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3932 .start_p2p_device = ieee80211_start_p2p_device,
3933 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3934 .add_key = ieee80211_add_key,
3935 .del_key = ieee80211_del_key,
62da92fb 3936 .get_key = ieee80211_get_key,
e8cbb4cb 3937 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3938 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3939 .start_ap = ieee80211_start_ap,
3940 .change_beacon = ieee80211_change_beacon,
3941 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3942 .add_station = ieee80211_add_station,
3943 .del_station = ieee80211_del_station,
3944 .change_station = ieee80211_change_station,
7bbdd2d9 3945 .get_station = ieee80211_get_station,
c5dd9c2b 3946 .dump_station = ieee80211_dump_station,
1289723e 3947 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3948#ifdef CONFIG_MAC80211_MESH
3949 .add_mpath = ieee80211_add_mpath,
3950 .del_mpath = ieee80211_del_mpath,
3951 .change_mpath = ieee80211_change_mpath,
3952 .get_mpath = ieee80211_get_mpath,
3953 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 3954 .update_mesh_config = ieee80211_update_mesh_config,
3955 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3956 .join_mesh = ieee80211_join_mesh,
3957 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3958#endif
9f1ba906 3959 .change_bss = ieee80211_change_bss,
31888487 3960 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3961 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3962 .suspend = ieee80211_suspend,
3963 .resume = ieee80211_resume,
2a519311 3964 .scan = ieee80211_scan,
79f460ca
LC		 3965 .sched_scan_start = ieee80211_sched_scan_start,
3966 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3967 .auth = ieee80211_auth,
3968 .assoc = ieee80211_assoc,
3969 .deauth = ieee80211_deauth,
3970 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3971 .join_ibss = ieee80211_join_ibss,
3972 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3973 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3974 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3975 .set_tx_power = ieee80211_set_tx_power,
3976 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3977 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3978 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3979 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3980 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3981 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3982 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3983 .remain_on_channel = ieee80211_remain_on_channel,
3984 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3985 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3986 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3987 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3988 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3989 .set_antenna = ieee80211_set_antenna,
3990 .get_antenna = ieee80211_get_antenna,
38c09159
JL		 3991 .set_ringparam = ieee80211_set_ringparam,
3992 .get_ringparam = ieee80211_get_ringparam,
c68f4b89 3993 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3994 .tdls_oper = ieee80211_tdls_oper,
3995 .tdls_mgmt = ieee80211_tdls_mgmt,
06500736 3996 .probe_client = ieee80211_probe_client,
b53be792 3997 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3998#ifdef CONFIG_PM
3999 .set_wakeup = ieee80211_set_wakeup,
4000#endif
b1ab7925
BG		 4001 .get_et_sset_count = ieee80211_get_et_sset_count,
4002 .get_et_stats = ieee80211_get_et_stats,
4003 .get_et_strings = ieee80211_get_et_strings,
5b7ccaf3 4004 .get_channel = ieee80211_cfg_get_channel,
164eb02d 4005 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 4006 .channel_switch = ieee80211_channel_switch,
32db6b54 4007 .set_qos_map = ieee80211_set_qos_map,
f0706e82 4008};
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