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mac80211: optimise synchronize_net() for sta_info_flush
[deliverable/linux.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
f0706e82
JB		 5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
e8cbb4cb 9#include <linux/ieee80211.h>
f0706e82
JB		 10#include <linux/nl80211.h>
11#include <linux/rtnetlink.h>
5a0e3ad6 12#include <linux/slab.h>
881d966b 13#include <net/net_namespace.h>
5dfdaf58 14#include <linux/rcupdate.h>
dfe018bf 15#include <linux/if_ether.h>
f0706e82
JB		 16#include <net/cfg80211.h>
17#include "ieee80211_i.h"
24487981 18#include "driver-ops.h"
e0eb6859 19#include "cfg.h"
2c8dccc7 20#include "rate.h"
c5dd9c2b 21#include "mesh.h"
c5dd9c2b 22
552bff0c
JB		 23static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
84efbb84
JB		 25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
f0706e82
JB		 28{
29 struct ieee80211_local *local = wiphy_priv(wiphy);
84efbb84 30 struct wireless_dev *wdev;
8cc9a739
MW		 31 struct ieee80211_sub_if_data *sdata;
32 int err;
f0706e82 33
84efbb84 34 err = ieee80211_if_add(local, name, &wdev, type, params);
f9e10ce4
JB		 35 if (err)
36 return ERR_PTR(err);
8cc9a739 37
f9e10ce4 38 if (type == NL80211_IFTYPE_MONITOR && flags) {
84efbb84 39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
f9e10ce4
JB		 40 sdata->u.mntr_flags = *flags;
41 }
42
84efbb84 43 return wdev;
f0706e82
JB		 44}
45
84efbb84 46static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
f0706e82 47{
84efbb84 48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
f0706e82 49
75636525 50 return 0;
f0706e82
JB		 51}
52
e36d56b6
JB		 53static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
2ec600d6
LCC		 55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
42613db7 57{
9607e6b6 58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 59 int ret;
42613db7 60
05c914fe 61 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 62 if (ret)
63 return ret;
42613db7 64
9bc383de
JB		 65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
a9b3cd7f 67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
9bc383de
JB		 68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
85416a4f
CL		 72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
74
75 if (ieee80211_sdata_running(sdata)) {
31eba5bc
FF		 76 u32 mask = MONITOR_FLAG_COOK_FRAMES |
77 MONITOR_FLAG_ACTIVE;
78
85416a4f 79 /*
31eba5bc
FF		 80 * Prohibit MONITOR_FLAG_COOK_FRAMES and
81 * MONITOR_FLAG_ACTIVE to be changed while the
82 * interface is up.
85416a4f
CL		 83 * Else we would need to add a lot of cruft
84 * to update everything:
85 * cooked_mntrs, monitor and all fif_* counters
86 * reconfigure hardware
87 */
31eba5bc 88 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
85416a4f
CL		 89 return -EBUSY;
90
91 ieee80211_adjust_monitor_flags(sdata, -1);
92 sdata->u.mntr_flags = *flags;
93 ieee80211_adjust_monitor_flags(sdata, 1);
94
95 ieee80211_configure_filter(local);
96 } else {
97 /*
98 * Because the interface is down, ieee80211_do_stop
99 * and ieee80211_do_open take care of "everything"
100 * mentioned in the comment above.
101 */
102 sdata->u.mntr_flags = *flags;
103 }
104 }
f7917af9 105
42613db7
JB		 106 return 0;
107}
108
f142c6b9
JB		 109static int ieee80211_start_p2p_device(struct wiphy *wiphy,
110 struct wireless_dev *wdev)
111{
112 return ieee80211_do_open(wdev, true);
113}
114
115static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
116 struct wireless_dev *wdev)
117{
118 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
119}
120
b53be792
SW		 121static int ieee80211_set_noack_map(struct wiphy *wiphy,
122 struct net_device *dev,
123 u16 noack_map)
124{
125 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
126
127 sdata->noack_map = noack_map;
128 return 0;
129}
130
e8cbb4cb 131static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 132 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 133 struct key_params *params)
134{
26a58456 135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2475b1cc 136 struct ieee80211_local *local = sdata->local;
e8cbb4cb 137 struct sta_info *sta = NULL;
2475b1cc 138 const struct ieee80211_cipher_scheme *cs = NULL;
db4d1169 139 struct ieee80211_key *key;
3b96766f 140 int err;
e8cbb4cb 141
26a58456 142 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 143 return -ENETDOWN;
144
97359d12 145 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 146 switch (params->cipher) {
147 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 148 case WLAN_CIPHER_SUITE_TKIP:
97359d12 149 case WLAN_CIPHER_SUITE_WEP104:
2475b1cc 150 if (IS_ERR(local->wep_tx_tfm))
97359d12 151 return -EINVAL;
3cfcf6ac 152 break;
2475b1cc
MS		 153 case WLAN_CIPHER_SUITE_CCMP:
154 case WLAN_CIPHER_SUITE_AES_CMAC:
155 case WLAN_CIPHER_SUITE_GCMP:
156 break;
e8cbb4cb 157 default:
2475b1cc 158 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
97359d12 159 break;
e8cbb4cb
JB		 160 }
161
97359d12 162 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
2475b1cc
MS		 163 params->key, params->seq_len, params->seq,
164 cs);
1ac62ba7
BH		 165 if (IS_ERR(key))
166 return PTR_ERR(key);
db4d1169 167
e31b8213
JB		 168 if (pairwise)
169 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
170
2475b1cc 171 mutex_lock(&local->sta_mtx);
3b96766f 172
e8cbb4cb 173 if (mac_addr) {
ff973af7
TP		 174 if (ieee80211_vif_is_mesh(&sdata->vif))
175 sta = sta_info_get(sdata, mac_addr);
176 else
177 sta = sta_info_get_bss(sdata, mac_addr);
1626e0fa
JB		 178 /*
179 * The ASSOC test makes sure the driver is ready to
180 * receive the key. When wpa_supplicant has roamed
181 * using FT, it attempts to set the key before
182 * association has completed, this rejects that attempt
183 * so it will set the key again after assocation.
184 *
185 * TODO: accept the key if we have a station entry and
186 * add it to the device after the station.
187 */
188 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
79cf2dfa 189 ieee80211_key_free_unused(key);
3b96766f
JB		 190 err = -ENOENT;
191 goto out_unlock;
db4d1169 192 }
e8cbb4cb
JB		 193 }
194
e548c49e
JB		 195 switch (sdata->vif.type) {
196 case NL80211_IFTYPE_STATION:
197 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
198 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
199 break;
200 case NL80211_IFTYPE_AP:
201 case NL80211_IFTYPE_AP_VLAN:
202 /* Keys without a station are used for TX only */
203 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
204 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
205 break;
206 case NL80211_IFTYPE_ADHOC:
207 /* no MFP (yet) */
208 break;
209 case NL80211_IFTYPE_MESH_POINT:
210#ifdef CONFIG_MAC80211_MESH
211 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
212 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
213 break;
214#endif
215 case NL80211_IFTYPE_WDS:
216 case NL80211_IFTYPE_MONITOR:
217 case NL80211_IFTYPE_P2P_DEVICE:
218 case NL80211_IFTYPE_UNSPECIFIED:
219 case NUM_NL80211_IFTYPES:
220 case NL80211_IFTYPE_P2P_CLIENT:
221 case NL80211_IFTYPE_P2P_GO:
222 /* shouldn't happen */
223 WARN_ON_ONCE(1);
224 break;
225 }
226
2475b1cc
MS		 227 if (sta)
228 sta->cipher_scheme = cs;
229
3ffc2a90 230 err = ieee80211_key_link(key, sdata, sta);
db4d1169 231
3b96766f 232 out_unlock:
2475b1cc 233 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 234
235 return err;
e8cbb4cb
JB		 236}
237
238static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 239 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 240{
5c0c3641
JB		 241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
242 struct ieee80211_local *local = sdata->local;
e8cbb4cb 243 struct sta_info *sta;
5c0c3641 244 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 245 int ret;
246
5c0c3641
JB		 247 mutex_lock(&local->sta_mtx);
248 mutex_lock(&local->key_mtx);
3b96766f 249
e8cbb4cb 250 if (mac_addr) {
3b96766f
JB		 251 ret = -ENOENT;
252
0e5ded5a 253 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 254 if (!sta)
3b96766f 255 goto out_unlock;
e8cbb4cb 256
5c0c3641 257 if (pairwise)
2475b1cc 258 key = key_mtx_dereference(local, sta->ptk[key_idx]);
5c0c3641 259 else
40b275b6 260 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 261 } else
40b275b6 262 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 263
5c0c3641 264 if (!key) {
3b96766f
JB		 265 ret = -ENOENT;
266 goto out_unlock;
267 }
e8cbb4cb 268
3b8d9c29 269 ieee80211_key_free(key, true);
e8cbb4cb 270
3b96766f
JB		 271 ret = 0;
272 out_unlock:
5c0c3641
JB		 273 mutex_unlock(&local->key_mtx);
274 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 275
276 return ret;
e8cbb4cb
JB		 277}
278
62da92fb 279static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 280 u8 key_idx, bool pairwise, const u8 *mac_addr,
281 void *cookie,
62da92fb
JB		 282 void (*callback)(void *cookie,
283 struct key_params *params))
284{
14db74bc 285 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 286 struct sta_info *sta = NULL;
287 u8 seq[6] = {0};
288 struct key_params params;
e31b8213 289 struct ieee80211_key *key = NULL;
aba83a0b 290 u64 pn64;
62da92fb
JB		 291 u32 iv32;
292 u16 iv16;
293 int err = -ENOENT;
294
14db74bc
JB		 295 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
296
3b96766f
JB		 297 rcu_read_lock();
298
62da92fb 299 if (mac_addr) {
0e5ded5a 300 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 301 if (!sta)
302 goto out;
303
e31b8213 304 if (pairwise)
2475b1cc 305 key = rcu_dereference(sta->ptk[key_idx]);
e31b8213 306 else if (key_idx < NUM_DEFAULT_KEYS)
a3836e02 307 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 308 } else
a3836e02 309 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 310
311 if (!key)
312 goto out;
313
314 memset(&params, 0, sizeof(params));
315
97359d12 316 params.cipher = key->conf.cipher;
62da92fb 317
97359d12
JB		 318 switch (key->conf.cipher) {
319 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 320 iv32 = key->u.tkip.tx.iv32;
321 iv16 = key->u.tkip.tx.iv16;
62da92fb 322
24487981
JB		 323 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
324 drv_get_tkip_seq(sdata->local,
325 key->conf.hw_key_idx,
326 &iv32, &iv16);
62da92fb
JB		 327
328 seq[0] = iv16 & 0xff;
329 seq[1] = (iv16 >> 8) & 0xff;
330 seq[2] = iv32 & 0xff;
331 seq[3] = (iv32 >> 8) & 0xff;
332 seq[4] = (iv32 >> 16) & 0xff;
333 seq[5] = (iv32 >> 24) & 0xff;
334 params.seq = seq;
335 params.seq_len = 6;
336 break;
97359d12 337 case WLAN_CIPHER_SUITE_CCMP:
aba83a0b
JB		 338 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
339 seq[0] = pn64;
340 seq[1] = pn64 >> 8;
341 seq[2] = pn64 >> 16;
342 seq[3] = pn64 >> 24;
343 seq[4] = pn64 >> 32;
344 seq[5] = pn64 >> 40;
62da92fb
JB		 345 params.seq = seq;
346 params.seq_len = 6;
347 break;
97359d12 348 case WLAN_CIPHER_SUITE_AES_CMAC:
75396ae6
JB		 349 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
350 seq[0] = pn64;
351 seq[1] = pn64 >> 8;
352 seq[2] = pn64 >> 16;
353 seq[3] = pn64 >> 24;
354 seq[4] = pn64 >> 32;
355 seq[5] = pn64 >> 40;
3cfcf6ac
JM		 356 params.seq = seq;
357 params.seq_len = 6;
358 break;
62da92fb
JB		 359 }
360
361 params.key = key->conf.key;
362 params.key_len = key->conf.keylen;
363
364 callback(cookie, &params);
365 err = 0;
366
367 out:
3b96766f 368 rcu_read_unlock();
62da92fb
JB		 369 return err;
370}
371
e8cbb4cb
JB		 372static int ieee80211_config_default_key(struct wiphy *wiphy,
373 struct net_device *dev,
dbd2fd65
JB		 374 u8 key_idx, bool uni,
375 bool multi)
e8cbb4cb 376{
ad0e2b5a 377 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 378
f7e0104c 379 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 380
381 return 0;
382}
383
3cfcf6ac
JM		 384static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
385 struct net_device *dev,
386 u8 key_idx)
387{
66c52421 388 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 389
3cfcf6ac
JM		 390 ieee80211_set_default_mgmt_key(sdata, key_idx);
391
3cfcf6ac
JM		 392 return 0;
393}
394
6b62bf32
TP		 395void sta_set_rate_info_tx(struct sta_info *sta,
396 const struct ieee80211_tx_rate *rate,
397 struct rate_info *rinfo)
398{
399 rinfo->flags = 0;
8bc83c24 400 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 401 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 402 rinfo->mcs = rate->idx;
403 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
404 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
405 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
406 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
407 } else {
408 struct ieee80211_supported_band *sband;
2103dec1
SW		 409 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
410 u16 brate;
411
8bc83c24
JB		 412 sband = sta->local->hw.wiphy->bands[
413 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 414 brate = sband->bitrates[rate->idx].bitrate;
415 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
8bc83c24 416 }
6b62bf32
TP		 417 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
418 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
8bc83c24
JB		 419 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
420 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
421 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
422 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
6b62bf32
TP		 423 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
424 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 425}
426
003e676a
S		 427void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
428{
429 rinfo->flags = 0;
430
431 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
432 rinfo->flags |= RATE_INFO_FLAGS_MCS;
433 rinfo->mcs = sta->last_rx_rate_idx;
434 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
435 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
436 rinfo->nss = sta->last_rx_rate_vht_nss;
437 rinfo->mcs = sta->last_rx_rate_idx;
438 } else {
439 struct ieee80211_supported_band *sband;
2103dec1
SW		 440 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
441 u16 brate;
003e676a
S		 442
443 sband = sta->local->hw.wiphy->bands[
444 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 445 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
446 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
003e676a
S		 447 }
448
449 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
450 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
451 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
452 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
453 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
454 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
455 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
456 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
457 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
458 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
459}
460
c5dd9c2b
LCC		 461static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
462{
d0709a65 463 struct ieee80211_sub_if_data *sdata = sta->sdata;
66572cfc 464 struct ieee80211_local *local = sdata->local;
ebe27c91 465 struct timespec uptime;
560d2682 466 u64 packets = 0;
ef0621e8 467 int i, ac;
c5dd9c2b 468
f5ea9120
JB		 469 sinfo->generation = sdata->local->sta_generation;
470
c5dd9c2b 471 sinfo->filled = STATION_INFO_INACTIVE_TIME |
560d2682
JB		 472 STATION_INFO_RX_BYTES64 |
473 STATION_INFO_TX_BYTES64 |
98c8a60a
JM		 474 STATION_INFO_RX_PACKETS |
475 STATION_INFO_TX_PACKETS |
b206b4ef
BR		 476 STATION_INFO_TX_RETRIES |
477 STATION_INFO_TX_FAILED |
5a5c731a 478 STATION_INFO_TX_BITRATE |
3af6334c 479 STATION_INFO_RX_BITRATE |
f4263c98 480 STATION_INFO_RX_DROP_MISC |
ebe27c91 481 STATION_INFO_BSS_PARAM |
7a724767 482 STATION_INFO_CONNECTED_TIME |
a85e1d55
PS		 483 STATION_INFO_STA_FLAGS |
484 STATION_INFO_BEACON_LOSS_COUNT;
ebe27c91
MSS		 485
486 do_posix_clock_monotonic_gettime(&uptime);
487 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
c5dd9c2b
LCC		 488
489 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
560d2682
JB		 490 sinfo->tx_bytes = 0;
491 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
492 sinfo->tx_bytes += sta->tx_bytes[ac];
493 packets += sta->tx_packets[ac];
494 }
495 sinfo->tx_packets = packets;
c5dd9c2b 496 sinfo->rx_bytes = sta->rx_bytes;
98c8a60a 497 sinfo->rx_packets = sta->rx_packets;
b206b4ef
BR		 498 sinfo->tx_retries = sta->tx_retry_count;
499 sinfo->tx_failed = sta->tx_retry_failed;
5a5c731a 500 sinfo->rx_dropped_misc = sta->rx_dropped;
a85e1d55 501 sinfo->beacon_loss_count = sta->beacon_loss_count;
c5dd9c2b 502
19deffbe
JL		 503 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
504 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
541a45a1 505 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
66572cfc
VG		 506 if (!local->ops->get_rssi ||
507 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
508 sinfo->signal = (s8)sta->last_signal;
541a45a1 509 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
420e7fab 510 }
ef0621e8
FF		 511 if (sta->chains) {
512 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
513 STATION_INFO_CHAIN_SIGNAL_AVG;
514
515 sinfo->chains = sta->chains;
516 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
517 sinfo->chain_signal[i] = sta->chain_signal_last[i];
518 sinfo->chain_signal_avg[i] =
519 (s8) -ewma_read(&sta->chain_signal_avg[i]);
520 }
521 }
420e7fab 522
6b62bf32 523 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
003e676a 524 sta_set_rate_info_rx(sta, &sinfo->rxrate);
420e7fab 525
902acc78 526 if (ieee80211_vif_is_mesh(&sdata->vif)) {
c5dd9c2b 527#ifdef CONFIG_MAC80211_MESH
c5dd9c2b
LCC		 528 sinfo->filled |= STATION_INFO_LLID |
529 STATION_INFO_PLID |
3f52b7e3
MP		 530 STATION_INFO_PLINK_STATE |
531 STATION_INFO_LOCAL_PM |
532 STATION_INFO_PEER_PM |
533 STATION_INFO_NONPEER_PM;
c5dd9c2b 534
6f101ef0
CYY		 535 sinfo->llid = sta->llid;
536 sinfo->plid = sta->plid;
c5dd9c2b 537 sinfo->plink_state = sta->plink_state;
d299a1f2
JC		 538 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
539 sinfo->filled |= STATION_INFO_T_OFFSET;
540 sinfo->t_offset = sta->t_offset;
541 }
3f52b7e3
MP		 542 sinfo->local_pm = sta->local_pm;
543 sinfo->peer_pm = sta->peer_pm;
544 sinfo->nonpeer_pm = sta->nonpeer_pm;
c5dd9c2b 545#endif
902acc78 546 }
f4263c98
PS		 547
548 sinfo->bss_param.flags = 0;
549 if (sdata->vif.bss_conf.use_cts_prot)
550 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
551 if (sdata->vif.bss_conf.use_short_preamble)
552 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
553 if (sdata->vif.bss_conf.use_short_slot)
554 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
555 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
556 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
7a724767
HS		 557
558 sinfo->sta_flags.set = 0;
559 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
560 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
561 BIT(NL80211_STA_FLAG_WME) |
562 BIT(NL80211_STA_FLAG_MFP) |
e4121562 563 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
d582cffb 564 BIT(NL80211_STA_FLAG_ASSOCIATED) |
e4121562 565 BIT(NL80211_STA_FLAG_TDLS_PEER);
7a724767
HS		 566 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
567 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
568 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
569 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
570 if (test_sta_flag(sta, WLAN_STA_WME))
571 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
572 if (test_sta_flag(sta, WLAN_STA_MFP))
573 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
574 if (test_sta_flag(sta, WLAN_STA_AUTH))
575 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
d582cffb
JB		 576 if (test_sta_flag(sta, WLAN_STA_ASSOC))
577 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
e4121562
HS		 578 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
579 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
c5dd9c2b
LCC		 580}
581
b1ab7925
BG		 582static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
583 "rx_packets", "rx_bytes", "wep_weak_iv_count",
584 "rx_duplicates", "rx_fragments", "rx_dropped",
585 "tx_packets", "tx_bytes", "tx_fragments",
586 "tx_filtered", "tx_retry_failed", "tx_retries",
3073a7c2
BG		 587 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
588 "channel", "noise", "ch_time", "ch_time_busy",
589 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
b1ab7925
BG		 590};
591#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
592
593static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
594 struct net_device *dev,
595 int sset)
596{
e352114f
BG		 597 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
598 int rv = 0;
599
b1ab7925 600 if (sset == ETH_SS_STATS)
e352114f
BG		 601 rv += STA_STATS_LEN;
602
603 rv += drv_get_et_sset_count(sdata, sset);
b1ab7925 604
e352114f
BG		 605 if (rv == 0)
606 return -EOPNOTSUPP;
607 return rv;
b1ab7925
BG		 608}
609
610static void ieee80211_get_et_stats(struct wiphy *wiphy,
611 struct net_device *dev,
612 struct ethtool_stats *stats,
613 u64 *data)
614{
615 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a
JB		 616 struct ieee80211_chanctx_conf *chanctx_conf;
617 struct ieee80211_channel *channel;
b1ab7925
BG		 618 struct sta_info *sta;
619 struct ieee80211_local *local = sdata->local;
3073a7c2
BG		 620 struct station_info sinfo;
621 struct survey_info survey;
622 int i, q;
623#define STA_STATS_SURVEY_LEN 7
b1ab7925
BG		 624
625 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
626
627#define ADD_STA_STATS(sta) \
628 do { \
629 data[i++] += sta->rx_packets; \
630 data[i++] += sta->rx_bytes; \
631 data[i++] += sta->wep_weak_iv_count; \
632 data[i++] += sta->num_duplicates; \
633 data[i++] += sta->rx_fragments; \
634 data[i++] += sta->rx_dropped; \
635 \
560d2682
JB		 636 data[i++] += sinfo.tx_packets; \
637 data[i++] += sinfo.tx_bytes; \
b1ab7925
BG		 638 data[i++] += sta->tx_fragments; \
639 data[i++] += sta->tx_filtered_count; \
640 data[i++] += sta->tx_retry_failed; \
641 data[i++] += sta->tx_retry_count; \
642 data[i++] += sta->beacon_loss_count; \
643 } while (0)
644
645 /* For Managed stations, find the single station based on BSSID
646 * and use that. For interface types, iterate through all available
647 * stations and add stats for any station that is assigned to this
648 * network device.
649 */
650
66572cfc 651 mutex_lock(&local->sta_mtx);
b1ab7925
BG		 652
653 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
654 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
3073a7c2
BG		 655
656 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
657 goto do_survey;
658
560d2682
JB		 659 sinfo.filled = 0;
660 sta_set_sinfo(sta, &sinfo);
661
3073a7c2
BG		 662 i = 0;
663 ADD_STA_STATS(sta);
664
665 data[i++] = sta->sta_state;
666
3073a7c2 667
5204267d 668 if (sinfo.filled & STATION_INFO_TX_BITRATE)
3073a7c2
BG		 669 data[i] = 100000 *
670 cfg80211_calculate_bitrate(&sinfo.txrate);
671 i++;
5204267d 672 if (sinfo.filled & STATION_INFO_RX_BITRATE)
3073a7c2
BG		 673 data[i] = 100000 *
674 cfg80211_calculate_bitrate(&sinfo.rxrate);
675 i++;
676
5204267d 677 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
3073a7c2
BG		 678 data[i] = (u8)sinfo.signal_avg;
679 i++;
b1ab7925 680 } else {
66572cfc 681 list_for_each_entry(sta, &local->sta_list, list) {
b1ab7925
BG		 682 /* Make sure this station belongs to the proper dev */
683 if (sta->sdata->dev != dev)
684 continue;
685
e13bae4f
JB		 686 sinfo.filled = 0;
687 sta_set_sinfo(sta, &sinfo);
b1ab7925
BG		 688 i = 0;
689 ADD_STA_STATS(sta);
b1ab7925
BG		 690 }
691 }
692
3073a7c2
BG		 693do_survey:
694 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
695 /* Get survey stats for current channel */
55de908a 696 survey.filled = 0;
3073a7c2 697
55de908a
JB		 698 rcu_read_lock();
699 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
700 if (chanctx_conf)
4bf88530 701 channel = chanctx_conf->def.chan;
55de908a
JB		 702 else
703 channel = NULL;
704 rcu_read_unlock();
705
706 if (channel) {
707 q = 0;
708 do {
709 survey.filled = 0;
710 if (drv_get_survey(local, q, &survey) != 0) {
711 survey.filled = 0;
712 break;
713 }
714 q++;
715 } while (channel != survey.channel);
3073a7c2
BG		 716 }
717
718 if (survey.filled)
719 data[i++] = survey.channel->center_freq;
720 else
721 data[i++] = 0;
722 if (survey.filled & SURVEY_INFO_NOISE_DBM)
723 data[i++] = (u8)survey.noise;
724 else
725 data[i++] = -1LL;
726 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
727 data[i++] = survey.channel_time;
728 else
729 data[i++] = -1LL;
730 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
731 data[i++] = survey.channel_time_busy;
732 else
733 data[i++] = -1LL;
734 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
735 data[i++] = survey.channel_time_ext_busy;
736 else
737 data[i++] = -1LL;
738 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
739 data[i++] = survey.channel_time_rx;
740 else
741 data[i++] = -1LL;
742 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
743 data[i++] = survey.channel_time_tx;
744 else
745 data[i++] = -1LL;
746
66572cfc 747 mutex_unlock(&local->sta_mtx);
e352114f 748
3073a7c2
BG		 749 if (WARN_ON(i != STA_STATS_LEN))
750 return;
751
e352114f 752 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
b1ab7925
BG		 753}
754
755static void ieee80211_get_et_strings(struct wiphy *wiphy,
756 struct net_device *dev,
757 u32 sset, u8 *data)
758{
e352114f
BG		 759 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
760 int sz_sta_stats = 0;
761
b1ab7925 762 if (sset == ETH_SS_STATS) {
e352114f 763 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
bd500af2 764 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
b1ab7925 765 }
e352114f 766 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
b1ab7925 767}
c5dd9c2b
LCC		 768
769static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
770 int idx, u8 *mac, struct station_info *sinfo)
771{
3b53fde8 772 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 773 struct ieee80211_local *local = sdata->local;
c5dd9c2b 774 struct sta_info *sta;
d0709a65
JB		 775 int ret = -ENOENT;
776
66572cfc 777 mutex_lock(&local->sta_mtx);
c5dd9c2b 778
3b53fde8 779 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 780 if (sta) {
781 ret = 0;
17741cdc 782 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 783 sta_set_sinfo(sta, sinfo);
784 }
c5dd9c2b 785
66572cfc 786 mutex_unlock(&local->sta_mtx);
c5dd9c2b 787
d0709a65 788 return ret;
c5dd9c2b
LCC		 789}
790
1289723e
HS		 791static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
792 int idx, struct survey_info *survey)
793{
794 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
795
1289723e
HS		 796 return drv_get_survey(local, idx, survey);
797}
798
7bbdd2d9 799static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
2ec600d6 800 u8 *mac, struct station_info *sinfo)
7bbdd2d9 801{
abe60632 802 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 803 struct ieee80211_local *local = sdata->local;
7bbdd2d9 804 struct sta_info *sta;
d0709a65 805 int ret = -ENOENT;
7bbdd2d9 806
66572cfc 807 mutex_lock(&local->sta_mtx);
7bbdd2d9 808
0e5ded5a 809 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 810 if (sta) {
811 ret = 0;
812 sta_set_sinfo(sta, sinfo);
813 }
814
66572cfc 815 mutex_unlock(&local->sta_mtx);
d0709a65
JB		 816
817 return ret;
7bbdd2d9
JB		 818}
819
55de908a 820static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
683b6d3b 821 struct cfg80211_chan_def *chandef)
3d9e6e12
JB		 822{
823 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a
JB		 824 struct ieee80211_sub_if_data *sdata;
825 int ret = 0;
3d9e6e12 826
4bf88530 827 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
55de908a 828 return 0;
3d9e6e12 829
55de908a
JB		 830 mutex_lock(&local->iflist_mtx);
831 if (local->use_chanctx) {
832 sdata = rcu_dereference_protected(
833 local->monitor_sdata,
834 lockdep_is_held(&local->iflist_mtx));
835 if (sdata) {
836 ieee80211_vif_release_channel(sdata);
4bf88530 837 ret = ieee80211_vif_use_channel(sdata, chandef,
55de908a
JB		 838 IEEE80211_CHANCTX_EXCLUSIVE);
839 }
840 } else if (local->open_count == local->monitors) {
675a0b04 841 local->_oper_chandef = *chandef;
55de908a
JB		 842 ieee80211_hw_config(local, 0);
843 }
3d9e6e12 844
4bf88530
JB		 845 if (ret == 0)
846 local->monitor_chandef = *chandef;
55de908a 847 mutex_unlock(&local->iflist_mtx);
3d9e6e12 848
55de908a 849 return ret;
e8c9bd5b
JB		 850}
851
02945821 852static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
8860020e 853 const u8 *resp, size_t resp_len)
02945821 854{
aa7a0080 855 struct probe_resp *new, *old;
02945821
AN		 856
857 if (!resp || !resp_len)
aba4e6ff 858 return 1;
02945821 859
7ca133bc 860 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
02945821 861
aa7a0080 862 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
02945821
AN		 863 if (!new)
864 return -ENOMEM;
865
aa7a0080
ES		 866 new->len = resp_len;
867 memcpy(new->data, resp, resp_len);
02945821
AN		 868
869 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
aa7a0080
ES		 870 if (old)
871 kfree_rcu(old, rcu_head);
02945821
AN		 872
873 return 0;
874}
875
73da7d5b
SW		 876int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
877 struct cfg80211_beacon_data *params)
5dfdaf58
JB		 878{
879 struct beacon_data *new, *old;
880 int new_head_len, new_tail_len;
8860020e
JB		 881 int size, err;
882 u32 changed = BSS_CHANGED_BEACON;
5dfdaf58 883
7ca133bc
SW		 884 old = sdata_dereference(sdata->u.ap.beacon, sdata);
885
5dfdaf58 886
5dfdaf58
JB		 887 /* Need to have a beacon head if we don't have one yet */
888 if (!params->head && !old)
8860020e 889 return -EINVAL;
5dfdaf58
JB		 890
891 /* new or old head? */
892 if (params->head)
893 new_head_len = params->head_len;
894 else
895 new_head_len = old->head_len;
896
897 /* new or old tail? */
898 if (params->tail || !old)
899 /* params->tail_len will be zero for !params->tail */
900 new_tail_len = params->tail_len;
901 else
902 new_tail_len = old->tail_len;
903
904 size = sizeof(*new) + new_head_len + new_tail_len;
905
906 new = kzalloc(size, GFP_KERNEL);
907 if (!new)
908 return -ENOMEM;
909
910 /* start filling the new info now */
911
5dfdaf58
JB		 912 /*
913 * pointers go into the block we allocated,
914 * memory is | beacon_data | head | tail |
915 */
916 new->head = ((u8 *) new) + sizeof(*new);
917 new->tail = new->head + new_head_len;
918 new->head_len = new_head_len;
919 new->tail_len = new_tail_len;
920
921 /* copy in head */
922 if (params->head)
923 memcpy(new->head, params->head, new_head_len);
924 else
925 memcpy(new->head, old->head, new_head_len);
926
927 /* copy in optional tail */
928 if (params->tail)
929 memcpy(new->tail, params->tail, new_tail_len);
930 else
931 if (old)
932 memcpy(new->tail, old->tail, new_tail_len);
933
02945821
AN		 934 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
935 params->probe_resp_len);
8860020e
JB		 936 if (err < 0)
937 return err;
938 if (err == 0)
02945821
AN		 939 changed |= BSS_CHANGED_AP_PROBE_RESP;
940
8860020e
JB		 941 rcu_assign_pointer(sdata->u.ap.beacon, new);
942
943 if (old)
944 kfree_rcu(old, rcu_head);
7827493b 945
8860020e 946 return changed;
5dfdaf58
JB		 947}
948
8860020e
JB		 949static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
950 struct cfg80211_ap_settings *params)
5dfdaf58 951{
8860020e 952 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
5dfdaf58 953 struct beacon_data *old;
665c93a9 954 struct ieee80211_sub_if_data *vlan;
8860020e
JB		 955 u32 changed = BSS_CHANGED_BEACON_INT |
956 BSS_CHANGED_BEACON_ENABLED |
957 BSS_CHANGED_BEACON |
339afbf4
JB		 958 BSS_CHANGED_SSID |
959 BSS_CHANGED_P2P_PS;
8860020e 960 int err;
14db74bc 961
7ca133bc 962 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 963 if (old)
964 return -EALREADY;
965
04ecd257
JB		 966 /* TODO: make hostapd tell us what it wants */
967 sdata->smps_mode = IEEE80211_SMPS_OFF;
968 sdata->needed_rx_chains = sdata->local->rx_chains;
164eb02d 969 sdata->radar_required = params->radar_required;
04ecd257 970
4bf88530 971 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 972 IEEE80211_CHANCTX_SHARED);
aa430da4
JB		 973 if (err)
974 return err;
1f4ac5a6 975 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
aa430da4 976
665c93a9
JB		 977 /*
978 * Apply control port protocol, this allows us to
979 * not encrypt dynamic WEP control frames.
980 */
981 sdata->control_port_protocol = params->crypto.control_port_ethertype;
982 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
2475b1cc
MS		 983 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
984 &params->crypto,
985 sdata->vif.type);
986
665c93a9
JB		 987 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
988 vlan->control_port_protocol =
989 params->crypto.control_port_ethertype;
990 vlan->control_port_no_encrypt =
991 params->crypto.control_port_no_encrypt;
2475b1cc
MS		 992 vlan->encrypt_headroom =
993 ieee80211_cs_headroom(sdata->local,
994 &params->crypto,
995 vlan->vif.type);
665c93a9
JB		 996 }
997
8860020e
JB		 998 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
999 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 1000 sdata->vif.bss_conf.enable_beacon = true;
8860020e
JB		 1001
1002 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1003 if (params->ssid_len)
1004 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1005 params->ssid_len);
1006 sdata->vif.bss_conf.hidden_ssid =
1007 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1008
67baf663
JD		 1009 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1010 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1011 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1012 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1013 if (params->p2p_opp_ps)
1014 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1015 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 1016
8860020e
JB		 1017 err = ieee80211_assign_beacon(sdata, &params->beacon);
1018 if (err < 0)
1019 return err;
1020 changed |= err;
1021
1041638f
JB		 1022 err = drv_start_ap(sdata->local, sdata);
1023 if (err) {
7ca133bc
SW		 1024 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1025
1041638f
JB		 1026 if (old)
1027 kfree_rcu(old, rcu_head);
1028 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1029 return err;
1030 }
1031
8860020e
JB		 1032 ieee80211_bss_info_change_notify(sdata, changed);
1033
3edaf3e6
JB		 1034 netif_carrier_on(dev);
1035 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1036 netif_carrier_on(vlan->dev);
1037
665c93a9 1038 return 0;
5dfdaf58
JB		 1039}
1040
8860020e
JB		 1041static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1042 struct cfg80211_beacon_data *params)
5dfdaf58 1043{
14db74bc 1044 struct ieee80211_sub_if_data *sdata;
5dfdaf58 1045 struct beacon_data *old;
8860020e 1046 int err;
5dfdaf58 1047
14db74bc
JB		 1048 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1049
73da7d5b
SW		 1050 /* don't allow changing the beacon while CSA is in place - offset
1051 * of channel switch counter may change
1052 */
1053 if (sdata->vif.csa_active)
1054 return -EBUSY;
1055
7ca133bc 1056 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 1057 if (!old)
1058 return -ENOENT;
1059
8860020e
JB		 1060 err = ieee80211_assign_beacon(sdata, params);
1061 if (err < 0)
1062 return err;
1063 ieee80211_bss_info_change_notify(sdata, err);
1064 return 0;
5dfdaf58
JB		 1065}
1066
8860020e 1067static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 1068{
7b20b8e8
JB		 1069 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1070 struct ieee80211_sub_if_data *vlan;
1071 struct ieee80211_local *local = sdata->local;
1072 struct beacon_data *old_beacon;
1073 struct probe_resp *old_probe_resp;
d2859df5 1074 struct cfg80211_chan_def chandef;
14db74bc 1075
7ca133bc 1076 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 1077 if (!old_beacon)
5dfdaf58 1078 return -ENOENT;
7ca133bc 1079 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 1080
73da7d5b
SW		 1081 /* abort any running channel switch */
1082 sdata->vif.csa_active = false;
1f3b8a2b
SW		 1083 kfree(sdata->u.ap.next_beacon);
1084 sdata->u.ap.next_beacon = NULL;
1085
687da132 1086 cancel_work_sync(&sdata->u.ap.request_smps_work);
73da7d5b 1087
7b20b8e8 1088 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 1089 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1090 netif_carrier_off(vlan->dev);
1091 netif_carrier_off(dev);
1092
7b20b8e8 1093 /* remove beacon and probe response */
a9b3cd7f 1094 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 1095 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1096 kfree_rcu(old_beacon, rcu_head);
1097 if (old_probe_resp)
1098 kfree_rcu(old_probe_resp, rcu_head);
8860020e 1099
2d4072a5 1100 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
d34ba216
JB		 1101 sta_info_flush(vlan);
1102 sta_info_flush(sdata);
8ceb5955 1103 synchronize_net();
d34ba216 1104 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
7b4396bd 1105 ieee80211_free_keys(vlan);
7b4396bd 1106 ieee80211_free_keys(sdata);
75de9113 1107
d6a83228 1108 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 1109 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 1110 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 1111 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 1112
a6b368f6 1113 if (sdata->wdev.cac_started) {
d2859df5 1114 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 1115 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 1116 cfg80211_cac_event(sdata->dev, &chandef,
1117 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 1118 GFP_KERNEL);
1119 }
1120
1041638f
JB		 1121 drv_stop_ap(sdata->local, sdata);
1122
7b20b8e8
JB		 1123 /* free all potentially still buffered bcast frames */
1124 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1125 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1126
1f4ac5a6 1127 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a
JB		 1128 ieee80211_vif_release_channel(sdata);
1129
2d0ddec5 1130 return 0;
5dfdaf58
JB		 1131}
1132
4fd6931e
JB		 1133/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1134struct iapp_layer2_update {
1135 u8 da[ETH_ALEN]; /* broadcast */
1136 u8 sa[ETH_ALEN]; /* STA addr */
1137 __be16 len; /* 6 */
1138 u8 dsap; /* 0 */
1139 u8 ssap; /* 0 */
1140 u8 control;
1141 u8 xid_info[3];
bc10502d 1142} __packed;
4fd6931e
JB		 1143
1144static void ieee80211_send_layer2_update(struct sta_info *sta)
1145{
1146 struct iapp_layer2_update *msg;
1147 struct sk_buff *skb;
1148
1149 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1150 * bridge devices */
1151
1152 skb = dev_alloc_skb(sizeof(*msg));
1153 if (!skb)
1154 return;
1155 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1156
1157 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1158 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1159
e83e6541 1160 eth_broadcast_addr(msg->da);
17741cdc 1161 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 1162 msg->len = htons(6);
1163 msg->dsap = 0;
1164 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1165 msg->control = 0xaf; /* XID response lsb.1111F101.
1166 * F=0 (no poll command; unsolicited frame) */
1167 msg->xid_info[0] = 0x81; /* XID format identifier */
1168 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1169 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1170
d0709a65
JB		 1171 skb->dev = sta->sdata->dev;
1172 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 1173 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 1174 netif_rx_ni(skb);
4fd6931e
JB		 1175}
1176
d582cffb
JB		 1177static int sta_apply_auth_flags(struct ieee80211_local *local,
1178 struct sta_info *sta,
1179 u32 mask, u32 set)
1180{
1181 int ret;
1182
1183 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1184 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1185 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1186 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1187 if (ret)
1188 return ret;
1189 }
1190
1191 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1192 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1193 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1194 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1195 if (ret)
1196 return ret;
1197 }
1198
1199 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1200 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1201 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1202 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1203 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1204 else
1205 ret = 0;
1206 if (ret)
1207 return ret;
1208 }
1209
1210 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1211 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1212 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1213 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1214 if (ret)
1215 return ret;
1216 }
1217
1218 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1219 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1220 test_sta_flag(sta, WLAN_STA_AUTH)) {
1221 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1222 if (ret)
1223 return ret;
1224 }
1225
1226 return 0;
1227}
1228
d9a7ddb0
JB		 1229static int sta_apply_parameters(struct ieee80211_local *local,
1230 struct sta_info *sta,
1231 struct station_parameters *params)
4fd6931e 1232{
d9a7ddb0 1233 int ret = 0;
8318d78a 1234 struct ieee80211_supported_band *sband;
d0709a65 1235 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 1236 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1237 u32 mask, set;
4fd6931e 1238
55de908a 1239 sband = local->hw.wiphy->bands[band];
ae5eb026 1240
eccb8e8f
JB		 1241 mask = params->sta_flags_mask;
1242 set = params->sta_flags_set;
73651ee6 1243
d582cffb
JB		 1244 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1245 /*
1246 * In mesh mode, ASSOCIATED isn't part of the nl80211
1247 * API but must follow AUTHENTICATED for driver state.
1248 */
1249 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1250 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1251 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1252 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1253 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1254 /*
1255 * TDLS -- everything follows authorized, but
1256 * only becoming authorized is possible, not
1257 * going back
1258 */
1259 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1260 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1261 BIT(NL80211_STA_FLAG_ASSOCIATED);
1262 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1263 BIT(NL80211_STA_FLAG_ASSOCIATED);
1264 }
eccb8e8f 1265 }
4fd6931e 1266
d582cffb
JB		 1267 ret = sta_apply_auth_flags(local, sta, mask, set);
1268 if (ret)
1269 return ret;
d9a7ddb0 1270
eccb8e8f 1271 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1272 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1273 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1274 else
1275 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1276 }
4fd6931e 1277
eccb8e8f 1278 if (mask & BIT(NL80211_STA_FLAG_WME)) {
39df600a 1279 if (set & BIT(NL80211_STA_FLAG_WME)) {
c2c98fde 1280 set_sta_flag(sta, WLAN_STA_WME);
39df600a 1281 sta->sta.wme = true;
c2c98fde
JB		 1282 } else {
1283 clear_sta_flag(sta, WLAN_STA_WME);
1284 sta->sta.wme = false;
39df600a 1285 }
eccb8e8f 1286 }
5394af4d 1287
eccb8e8f 1288 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1289 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1290 set_sta_flag(sta, WLAN_STA_MFP);
1291 else
1292 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1293 }
b39c48fa 1294
07ba55d7 1295 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1296 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1297 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1298 else
1299 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1300 }
4fd6931e 1301
3b9ce80c
JB		 1302 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1303 sta->sta.uapsd_queues = params->uapsd_queues;
1304 sta->sta.max_sp = params->max_sp;
1305 }
9533b4ac 1306
51b50fbe
JB		 1307 /*
1308 * cfg80211 validates this (1-2007) and allows setting the AID
1309 * only when creating a new station entry
1310 */
1311 if (params->aid)
1312 sta->sta.aid = params->aid;
1313
73651ee6 1314 /*
ba23d206
JB		 1315 * Some of the following updates would be racy if called on an
1316 * existing station, via ieee80211_change_station(). However,
1317 * all such changes are rejected by cfg80211 except for updates
1318 * changing the supported rates on an existing but not yet used
1319 * TDLS peer.
73651ee6
JB		 1320 */
1321
4fd6931e
JB		 1322 if (params->listen_interval >= 0)
1323 sta->listen_interval = params->listen_interval;
1324
1325 if (params->supported_rates) {
2103dec1
SW		 1326 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1327 sband, params->supported_rates,
1328 params->supported_rates_len,
1329 &sta->sta.supp_rates[band]);
4fd6931e 1330 }
c5dd9c2b 1331
d9fe60de 1332 if (params->ht_capa)
ef96a842 1333 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1334 params->ht_capa, sta);
36aedc90 1335
f461be3e
MP		 1336 if (params->vht_capa)
1337 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1338 params->vht_capa, sta);
f461be3e 1339
9c3990aa 1340 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1341#ifdef CONFIG_MAC80211_MESH
39886b61 1342 u32 changed = 0;
77ee7c89
JB		 1343
1344 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1345 switch (params->plink_state) {
57cf8043 1346 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1347 if (sta->plink_state != NL80211_PLINK_ESTAB)
1348 changed = mesh_plink_inc_estab_count(
1349 sdata);
1350 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1351
1352 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1353 changed |= ieee80211_mps_set_sta_local_pm(sta,
1354 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1355 break;
1356 case NL80211_PLINK_LISTEN:
57cf8043 1357 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1358 case NL80211_PLINK_OPN_SNT:
1359 case NL80211_PLINK_OPN_RCVD:
1360 case NL80211_PLINK_CNF_RCVD:
1361 case NL80211_PLINK_HOLDING:
1362 if (sta->plink_state == NL80211_PLINK_ESTAB)
1363 changed = mesh_plink_dec_estab_count(
1364 sdata);
9c3990aa 1365 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1366
1367 ieee80211_mps_sta_status_update(sta);
446075d7
MP		 1368 changed |= ieee80211_mps_set_sta_local_pm(sta,
1369 NL80211_MESH_POWER_UNKNOWN);
9c3990aa
JC		 1370 break;
1371 default:
1372 /* nothing */
1373 break;
1374 }
77ee7c89
JB		 1375 }
1376
1377 switch (params->plink_action) {
1378 case NL80211_PLINK_ACTION_NO_ACTION:
1379 /* nothing */
1380 break;
1381 case NL80211_PLINK_ACTION_OPEN:
1382 changed |= mesh_plink_open(sta);
1383 break;
1384 case NL80211_PLINK_ACTION_BLOCK:
1385 changed |= mesh_plink_block(sta);
1386 break;
1617bab8 1387 }
3f52b7e3
MP		 1388
1389 if (params->local_pm)
39886b61
TP		 1390 changed |=
1391 ieee80211_mps_set_sta_local_pm(sta,
1392 params->local_pm);
6c751ef8 1393 ieee80211_mbss_info_change_notify(sdata, changed);
4daf50f2 1394#endif
902acc78 1395 }
d9a7ddb0
JB		 1396
1397 return 0;
4fd6931e
JB		 1398}
1399
1400static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1401 u8 *mac, struct station_parameters *params)
1402{
14db74bc 1403 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1404 struct sta_info *sta;
1405 struct ieee80211_sub_if_data *sdata;
73651ee6 1406 int err;
b8d476c8 1407 int layer2_update;
4fd6931e 1408
4fd6931e
JB		 1409 if (params->vlan) {
1410 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1411
05c914fe
JB		 1412 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1413 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1414 return -EINVAL;
1415 } else
1416 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1417
b203ca39 1418 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1419 return -EINVAL;
1420
1421 if (is_multicast_ether_addr(mac))
1422 return -EINVAL;
1423
1424 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1425 if (!sta)
1426 return -ENOMEM;
4fd6931e 1427
d582cffb
JB		 1428 /*
1429 * defaults -- if userspace wants something else we'll
1430 * change it accordingly in sta_apply_parameters()
1431 */
77ee7c89
JB		 1432 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1433 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1434 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1435 }
4fd6931e 1436
d9a7ddb0
JB		 1437 err = sta_apply_parameters(local, sta, params);
1438 if (err) {
1439 sta_info_free(local, sta);
1440 return err;
1441 }
4fd6931e 1442
d64cf63e 1443 /*
77ee7c89
JB		 1444 * for TDLS, rate control should be initialized only when
1445 * rates are known and station is marked authorized
d64cf63e
AN		 1446 */
1447 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1448 rate_control_rate_init(sta);
4fd6931e 1449
b8d476c8
JM		 1450 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1451 sdata->vif.type == NL80211_IFTYPE_AP;
1452
34e89507 1453 err = sta_info_insert_rcu(sta);
73651ee6 1454 if (err) {
73651ee6
JB		 1455 rcu_read_unlock();
1456 return err;
1457 }
1458
b8d476c8 1459 if (layer2_update)
73651ee6
JB		 1460 ieee80211_send_layer2_update(sta);
1461
1462 rcu_read_unlock();
1463
4fd6931e
JB		 1464 return 0;
1465}
1466
1467static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1468 u8 *mac)
1469{
14db74bc 1470 struct ieee80211_sub_if_data *sdata;
4fd6931e 1471
14db74bc
JB		 1472 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1473
34e89507
JB		 1474 if (mac)
1475 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 1476
b998e8bb 1477 sta_info_flush(sdata);
4fd6931e
JB		 1478 return 0;
1479}
1480
1481static int ieee80211_change_station(struct wiphy *wiphy,
77ee7c89 1482 struct net_device *dev, u8 *mac,
4fd6931e
JB		 1483 struct station_parameters *params)
1484{
abe60632 1485 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1486 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1487 struct sta_info *sta;
1488 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1489 enum cfg80211_station_type statype;
35b88623 1490 int err;
4fd6931e 1491
87be1e1e 1492 mutex_lock(&local->sta_mtx);
98dd6a57 1493
0e5ded5a 1494 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1495 if (!sta) {
77ee7c89
JB		 1496 err = -ENOENT;
1497 goto out_err;
98dd6a57 1498 }
4fd6931e 1499
77ee7c89
JB		 1500 switch (sdata->vif.type) {
1501 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1502 if (sdata->u.mesh.user_mpm)
eef941e6 1503 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1504 else
eef941e6 1505 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1506 break;
1507 case NL80211_IFTYPE_ADHOC:
1508 statype = CFG80211_STA_IBSS;
1509 break;
1510 case NL80211_IFTYPE_STATION:
1511 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1512 statype = CFG80211_STA_AP_STA;
1513 break;
1514 }
1515 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1516 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1517 else
1518 statype = CFG80211_STA_TDLS_PEER_SETUP;
1519 break;
1520 case NL80211_IFTYPE_AP:
1521 case NL80211_IFTYPE_AP_VLAN:
1522 statype = CFG80211_STA_AP_CLIENT;
1523 break;
1524 default:
1525 err = -EOPNOTSUPP;
1526 goto out_err;
bdd90d5e
JB		 1527 }
1528
77ee7c89
JB		 1529 err = cfg80211_check_station_change(wiphy, params, statype);
1530 if (err)
1531 goto out_err;
1532
d0709a65 1533 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1534 bool prev_4addr = false;
1535 bool new_4addr = false;
1536
4fd6931e
JB		 1537 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1538
9bc383de 1539 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1540 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1541 err = -EBUSY;
1542 goto out_err;
3305443c 1543 }
f14543ee 1544
cf778b00 1545 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1546 new_4addr = true;
1547 }
1548
1549 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1550 sta->sdata->u.vlan.sta) {
1551 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1552 prev_4addr = true;
f14543ee
FF		 1553 }
1554
14db74bc 1555 sta->sdata = vlansdata;
7e3ed02c
FF		 1556
1557 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1558 prev_4addr != new_4addr) {
1559 if (new_4addr)
1560 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1561 else
1562 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1563 }
1564
4fd6931e
JB		 1565 ieee80211_send_layer2_update(sta);
1566 }
1567
35b88623 1568 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1569 if (err)
1570 goto out_err;
4fd6931e 1571
77ee7c89
JB		 1572 /* When peer becomes authorized, init rate control as well */
1573 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1574 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
d64cf63e
AN		 1575 rate_control_rate_init(sta);
1576
87be1e1e 1577 mutex_unlock(&local->sta_mtx);
98dd6a57 1578
687da132
EG		 1579 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1580 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1581 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1582 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1583 sta_info_tx_streams(sta) != 1) {
1584 ht_dbg(sta->sdata,
1585 "%pM just authorized and MIMO capable - update SMPS\n",
1586 sta->sta.addr);
1587 ieee80211_send_smps_action(sta->sdata,
1588 sta->sdata->bss->req_smps,
1589 sta->sta.addr,
1590 sta->sdata->vif.bss_conf.bssid);
1591 }
1592
808118cb 1593 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1594 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1595 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1596 ieee80211_recalc_ps_vif(sdata);
1597 }
77ee7c89 1598
4fd6931e 1599 return 0;
77ee7c89
JB		 1600out_err:
1601 mutex_unlock(&local->sta_mtx);
1602 return err;
4fd6931e
JB		 1603}
1604
c5dd9c2b
LCC		 1605#ifdef CONFIG_MAC80211_MESH
1606static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1607 u8 *dst, u8 *next_hop)
1608{
14db74bc 1609 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1610 struct mesh_path *mpath;
1611 struct sta_info *sta;
c5dd9c2b 1612
14db74bc
JB		 1613 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1614
d0709a65 1615 rcu_read_lock();
abe60632 1616 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1617 if (!sta) {
1618 rcu_read_unlock();
c5dd9c2b 1619 return -ENOENT;
d0709a65 1620 }
c5dd9c2b 1621
ae76eef0
BC		 1622 mpath = mesh_path_add(sdata, dst);
1623 if (IS_ERR(mpath)) {
d0709a65 1624 rcu_read_unlock();
ae76eef0 1625 return PTR_ERR(mpath);
d0709a65 1626 }
c5dd9c2b 1627
c5dd9c2b 1628 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1629
c5dd9c2b
LCC		 1630 rcu_read_unlock();
1631 return 0;
1632}
1633
1634static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
bf7cd94d 1635 u8 *dst)
c5dd9c2b 1636{
f698d856
JBG		 1637 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1638
c5dd9c2b 1639 if (dst)
bf7cd94d 1640 return mesh_path_del(sdata, dst);
c5dd9c2b 1641
ece1a2e7 1642 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1643 return 0;
1644}
1645
1646static int ieee80211_change_mpath(struct wiphy *wiphy,
1647 struct net_device *dev,
1648 u8 *dst, u8 *next_hop)
1649{
14db74bc 1650 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1651 struct mesh_path *mpath;
1652 struct sta_info *sta;
1653
14db74bc
JB		 1654 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1655
d0709a65
JB		 1656 rcu_read_lock();
1657
abe60632 1658 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1659 if (!sta) {
1660 rcu_read_unlock();
c5dd9c2b 1661 return -ENOENT;
d0709a65 1662 }
c5dd9c2b 1663
bf7cd94d 1664 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1665 if (!mpath) {
1666 rcu_read_unlock();
c5dd9c2b
LCC		 1667 return -ENOENT;
1668 }
1669
1670 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1671
c5dd9c2b
LCC		 1672 rcu_read_unlock();
1673 return 0;
1674}
1675
1676static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1677 struct mpath_info *pinfo)
1678{
a3836e02
JB		 1679 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1680
1681 if (next_hop_sta)
1682 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1683 else
1684 memset(next_hop, 0, ETH_ALEN);
1685
7ce8c7a3
LAYS		 1686 memset(pinfo, 0, sizeof(*pinfo));
1687
f5ea9120
JB		 1688 pinfo->generation = mesh_paths_generation;
1689
c5dd9c2b 1690 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1691 MPATH_INFO_SN |
c5dd9c2b
LCC		 1692 MPATH_INFO_METRIC |
1693 MPATH_INFO_EXPTIME |
1694 MPATH_INFO_DISCOVERY_TIMEOUT |
1695 MPATH_INFO_DISCOVERY_RETRIES |
1696 MPATH_INFO_FLAGS;
1697
1698 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1699 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1700 pinfo->metric = mpath->metric;
1701 if (time_before(jiffies, mpath->exp_time))
1702 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1703 pinfo->discovery_timeout =
1704 jiffies_to_msecs(mpath->discovery_timeout);
1705 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1706 if (mpath->flags & MESH_PATH_ACTIVE)
1707 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1708 if (mpath->flags & MESH_PATH_RESOLVING)
1709 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1710 if (mpath->flags & MESH_PATH_SN_VALID)
1711 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1712 if (mpath->flags & MESH_PATH_FIXED)
1713 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1714 if (mpath->flags & MESH_PATH_RESOLVED)
1715 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1716}
1717
1718static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1719 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1720
1721{
14db74bc 1722 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1723 struct mesh_path *mpath;
1724
14db74bc
JB		 1725 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1726
c5dd9c2b 1727 rcu_read_lock();
bf7cd94d 1728 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1729 if (!mpath) {
1730 rcu_read_unlock();
1731 return -ENOENT;
1732 }
1733 memcpy(dst, mpath->dst, ETH_ALEN);
1734 mpath_set_pinfo(mpath, next_hop, pinfo);
1735 rcu_read_unlock();
1736 return 0;
1737}
1738
1739static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1740 int idx, u8 *dst, u8 *next_hop,
1741 struct mpath_info *pinfo)
1742{
14db74bc 1743 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1744 struct mesh_path *mpath;
1745
14db74bc
JB		 1746 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1747
c5dd9c2b 1748 rcu_read_lock();
bf7cd94d 1749 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1750 if (!mpath) {
1751 rcu_read_unlock();
1752 return -ENOENT;
1753 }
1754 memcpy(dst, mpath->dst, ETH_ALEN);
1755 mpath_set_pinfo(mpath, next_hop, pinfo);
1756 rcu_read_unlock();
1757 return 0;
1758}
93da9cc1 1759
24bdd9f4 1760static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1761 struct net_device *dev,
1762 struct mesh_config *conf)
1763{
1764 struct ieee80211_sub_if_data *sdata;
1765 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1766
93da9cc1 1767 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1768 return 0;
1769}
1770
1771static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1772{
1773 return (mask >> (parm-1)) & 0x1;
1774}
1775
c80d545d
JC		 1776static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1777 const struct mesh_setup *setup)
1778{
1779 u8 *new_ie;
1780 const u8 *old_ie;
4bb62344
CYY		 1781 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1782 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1783
581a8b0f 1784 /* allocate information elements */
c80d545d 1785 new_ie = NULL;
581a8b0f 1786 old_ie = ifmsh->ie;
c80d545d 1787
581a8b0f
JC		 1788 if (setup->ie_len) {
1789 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1790 GFP_KERNEL);
1791 if (!new_ie)
1792 return -ENOMEM;
1793 }
581a8b0f
JC		 1794 ifmsh->ie_len = setup->ie_len;
1795 ifmsh->ie = new_ie;
1796 kfree(old_ie);
c80d545d
JC		 1797
1798 /* now copy the rest of the setup parameters */
1799 ifmsh->mesh_id_len = setup->mesh_id_len;
1800 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1801 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1802 ifmsh->mesh_pp_id = setup->path_sel_proto;
1803 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1804 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1805 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1806 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1807 if (setup->is_authenticated)
1808 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1809 if (setup->is_secure)
1810 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1811
4bb62344
CYY		 1812 /* mcast rate setting in Mesh Node */
1813 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1814 sizeof(setup->mcast_rate));
ffb3cf30 1815 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1816
9bdbf04d
MP		 1817 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1818 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1819
c80d545d
JC		 1820 return 0;
1821}
1822
24bdd9f4 1823static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1824 struct net_device *dev, u32 mask,
1825 const struct mesh_config *nconf)
93da9cc1 1826{
1827 struct mesh_config *conf;
1828 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1829 struct ieee80211_if_mesh *ifmsh;
1830
93da9cc1 1831 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1832 ifmsh = &sdata->u.mesh;
93da9cc1 1833
93da9cc1 1834 /* Set the config options which we are interested in setting */
1835 conf = &(sdata->u.mesh.mshcfg);
1836 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1837 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1838 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1839 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1840 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1841 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1842 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1843 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1844 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1845 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1846 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1847 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1848 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1849 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1850 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1851 if (ifmsh->user_mpm)
1852 return -EBUSY;
93da9cc1 1853 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1854 }
d299a1f2
JC		 1855 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1856 conf->dot11MeshNbrOffsetMaxNeighbor =
1857 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1858 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1859 conf->dot11MeshHWMPmaxPREQretries =
1860 nconf->dot11MeshHWMPmaxPREQretries;
1861 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1862 conf->path_refresh_time = nconf->path_refresh_time;
1863 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1864 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1865 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1866 conf->dot11MeshHWMPactivePathTimeout =
1867 nconf->dot11MeshHWMPactivePathTimeout;
1868 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1869 conf->dot11MeshHWMPpreqMinInterval =
1870 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1871 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1872 conf->dot11MeshHWMPperrMinInterval =
1873 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1874 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1875 mask))
1876 conf->dot11MeshHWMPnetDiameterTraversalTime =
1877 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1878 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1879 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1880 ieee80211_mesh_root_setup(ifmsh);
1881 }
16dd7267 1882 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1883 /* our current gate announcement implementation rides on root
1884 * announcements, so require this ifmsh to also be a root node
1885 * */
1886 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1887 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1888 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1889 ieee80211_mesh_root_setup(ifmsh);
1890 }
16dd7267
JC		 1891 conf->dot11MeshGateAnnouncementProtocol =
1892 nconf->dot11MeshGateAnnouncementProtocol;
1893 }
a4f606ea 1894 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1895 conf->dot11MeshHWMPRannInterval =
1896 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1897 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1898 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1899 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1900 /* our RSSI threshold implementation is supported only for
1901 * devices that report signal in dBm.
1902 */
1903 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1904 return -ENOTSUPP;
1905 conf->rssi_threshold = nconf->rssi_threshold;
1906 }
70c33eaa
AN		 1907 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1908 conf->ht_opmode = nconf->ht_opmode;
1909 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1910 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1911 }
ac1073a6
CYY		 1912 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1913 conf->dot11MeshHWMPactivePathToRootTimeout =
1914 nconf->dot11MeshHWMPactivePathToRootTimeout;
1915 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1916 conf->dot11MeshHWMProotInterval =
1917 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1918 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1919 conf->dot11MeshHWMPconfirmationInterval =
1920 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1921 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1922 conf->power_mode = nconf->power_mode;
1923 ieee80211_mps_local_status_update(sdata);
1924 }
2b5e1967 1925 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1926 conf->dot11MeshAwakeWindowDuration =
1927 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1928 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1929 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1930 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1931 return 0;
1932}
1933
29cbe68c
JB		 1934static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1935 const struct mesh_config *conf,
1936 const struct mesh_setup *setup)
1937{
1938 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1939 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1940 int err;
29cbe68c 1941
c80d545d
JC		 1942 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1943 err = copy_mesh_setup(ifmsh, setup);
1944 if (err)
1945 return err;
cc1d2806 1946
04ecd257
JB		 1947 /* can mesh use other SMPS modes? */
1948 sdata->smps_mode = IEEE80211_SMPS_OFF;
1949 sdata->needed_rx_chains = sdata->local->rx_chains;
1950
4bf88530 1951 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1952 IEEE80211_CHANCTX_SHARED);
cc1d2806
JB		 1953 if (err)
1954 return err;
1955
2b5e1967 1956 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1957}
1958
1959static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1960{
1961 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1962
1963 ieee80211_stop_mesh(sdata);
55de908a 1964 ieee80211_vif_release_channel(sdata);
29cbe68c
JB		 1965
1966 return 0;
1967}
c5dd9c2b
LCC		 1968#endif
1969
9f1ba906
JM		 1970static int ieee80211_change_bss(struct wiphy *wiphy,
1971 struct net_device *dev,
1972 struct bss_parameters *params)
1973{
55de908a
JB		 1974 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1975 enum ieee80211_band band;
9f1ba906
JM		 1976 u32 changed = 0;
1977
7ca133bc 1978 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1979 return -ENOENT;
1980
1981 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1982
9f1ba906 1983 if (params->use_cts_prot >= 0) {
bda3933a 1984 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1985 changed |= BSS_CHANGED_ERP_CTS_PROT;
1986 }
1987 if (params->use_short_preamble >= 0) {
bda3933a 1988 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1989 params->use_short_preamble;
1990 changed |= BSS_CHANGED_ERP_PREAMBLE;
1991 }
43d35343
FF		 1992
1993 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1994 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1995 sdata->vif.bss_conf.use_short_slot = true;
1996 changed |= BSS_CHANGED_ERP_SLOT;
1997 }
1998
9f1ba906 1999 if (params->use_short_slot_time >= 0) {
bda3933a 2000 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 2001 params->use_short_slot_time;
2002 changed |= BSS_CHANGED_ERP_SLOT;
2003 }
2004
90c97a04 2005 if (params->basic_rates) {
2103dec1
SW		 2006 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2007 wiphy->bands[band],
2008 params->basic_rates,
2009 params->basic_rates_len,
2010 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 2011 changed |= BSS_CHANGED_BASIC_RATES;
2012 }
2013
7b7b5e56
FF		 2014 if (params->ap_isolate >= 0) {
2015 if (params->ap_isolate)
2016 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2017 else
2018 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2019 }
2020
80d7e403
HS		 2021 if (params->ht_opmode >= 0) {
2022 sdata->vif.bss_conf.ht_operation_mode =
2023 (u16) params->ht_opmode;
2024 changed |= BSS_CHANGED_HT;
2025 }
2026
339afbf4 2027 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 2028 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2029 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2030 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2031 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 2032 changed |= BSS_CHANGED_P2P_PS;
2033 }
2034
67baf663
JD		 2035 if (params->p2p_opp_ps > 0) {
2036 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2037 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2038 changed |= BSS_CHANGED_P2P_PS;
2039 } else if (params->p2p_opp_ps == 0) {
2040 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2041 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 2042 changed |= BSS_CHANGED_P2P_PS;
2043 }
2044
9f1ba906
JM		 2045 ieee80211_bss_info_change_notify(sdata, changed);
2046
2047 return 0;
2048}
2049
31888487 2050static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 2051 struct net_device *dev,
31888487
JM		 2052 struct ieee80211_txq_params *params)
2053{
2054 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 2055 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 2056 struct ieee80211_tx_queue_params p;
2057
2058 if (!local->ops->conf_tx)
2059 return -EOPNOTSUPP;
2060
54bcbc69
JB		 2061 if (local->hw.queues < IEEE80211_NUM_ACS)
2062 return -EOPNOTSUPP;
2063
31888487
JM		 2064 memset(&p, 0, sizeof(p));
2065 p.aifs = params->aifs;
2066 p.cw_max = params->cwmax;
2067 p.cw_min = params->cwmin;
2068 p.txop = params->txop;
ab13315a
KV		 2069
2070 /*
2071 * Setting tx queue params disables u-apsd because it's only
2072 * called in master mode.
2073 */
2074 p.uapsd = false;
2075
a3304b0a
JB		 2076 sdata->tx_conf[params->ac] = p;
2077 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 2078 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 2079 "failed to set TX queue parameters for AC %d\n",
2080 params->ac);
31888487
JM		 2081 return -EINVAL;
2082 }
2083
7d25745d
JB		 2084 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2085
31888487
JM		 2086 return 0;
2087}
2088
665af4fc 2089#ifdef CONFIG_PM
ff1b6e69
JB		 2090static int ieee80211_suspend(struct wiphy *wiphy,
2091 struct cfg80211_wowlan *wowlan)
665af4fc 2092{
eecc4800 2093 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 2094}
2095
2096static int ieee80211_resume(struct wiphy *wiphy)
2097{
2098 return __ieee80211_resume(wiphy_priv(wiphy));
2099}
2100#else
2101#define ieee80211_suspend NULL
2102#define ieee80211_resume NULL
2103#endif
2104
2a519311 2105static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 2106 struct cfg80211_scan_request *req)
2107{
fd014284
JB		 2108 struct ieee80211_sub_if_data *sdata;
2109
2110 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 2111
2ca27bcf
JB		 2112 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2113 case NL80211_IFTYPE_STATION:
2114 case NL80211_IFTYPE_ADHOC:
2115 case NL80211_IFTYPE_MESH_POINT:
2116 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 2117 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 2118 break;
2119 case NL80211_IFTYPE_P2P_GO:
2120 if (sdata->local->ops->hw_scan)
2121 break;
e9d7732e
JB		 2122 /*
2123 * FIXME: implement NoA while scanning in software,
2124 * for now fall through to allow scanning only when
2125 * beaconing hasn't been configured yet
2126 */
2ca27bcf 2127 case NL80211_IFTYPE_AP:
5c95b940
AQ		 2128 /*
2129 * If the scan has been forced (and the driver supports
2130 * forcing), don't care about being beaconing already.
2131 * This will create problems to the attached stations (e.g. all
2132 * the frames sent while scanning on other channel will be
2133 * lost)
2134 */
2135 if (sdata->u.ap.beacon &&
2136 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2137 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2138 return -EOPNOTSUPP;
2139 break;
2140 default:
2141 return -EOPNOTSUPP;
2142 }
2a519311
JB		 2143
2144 return ieee80211_request_scan(sdata, req);
2145}
2146
79f460ca
LC		 2147static int
2148ieee80211_sched_scan_start(struct wiphy *wiphy,
2149 struct net_device *dev,
2150 struct cfg80211_sched_scan_request *req)
2151{
2152 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2153
2154 if (!sdata->local->ops->sched_scan_start)
2155 return -EOPNOTSUPP;
2156
2157 return ieee80211_request_sched_scan_start(sdata, req);
2158}
2159
2160static int
85a9994a 2161ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 2162{
2163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2164
2165 if (!sdata->local->ops->sched_scan_stop)
2166 return -EOPNOTSUPP;
2167
85a9994a 2168 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 2169}
2170
636a5d36
JM		 2171static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2172 struct cfg80211_auth_request *req)
2173{
77fdaa12 2174 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2175}
2176
2177static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2178 struct cfg80211_assoc_request *req)
2179{
77fdaa12 2180 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2181}
2182
2183static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2184 struct cfg80211_deauth_request *req)
636a5d36 2185{
63c9c5e7 2186 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2187}
2188
2189static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2190 struct cfg80211_disassoc_request *req)
636a5d36 2191{
63c9c5e7 2192 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2193}
2194
af8cdcd8
JB		 2195static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2196 struct cfg80211_ibss_params *params)
2197{
55de908a 2198 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2199}
2200
2201static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2202{
55de908a 2203 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2204}
2205
391e53e3
AQ		 2206static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2207 int rate[IEEE80211_NUM_BANDS])
2208{
2209 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2210
9887dbf5
CD		 2211 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2212 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 2213
2214 return 0;
2215}
2216
b9a5f8ca
JM		 2217static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2218{
2219 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2220 int err;
b9a5f8ca 2221
f23a4780
AN		 2222 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2223 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2224
2225 if (err)
2226 return err;
2227 }
2228
310bc676
LT		 2229 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2230 err = drv_set_coverage_class(local, wiphy->coverage_class);
2231
2232 if (err)
2233 return err;
2234 }
2235
b9a5f8ca 2236 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2237 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2238
24487981
JB		 2239 if (err)
2240 return err;
b9a5f8ca
JM		 2241 }
2242
8bc83c24
JB		 2243 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2244 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2245 return -EINVAL;
b9a5f8ca 2246 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2247 }
2248 if (changed & WIPHY_PARAM_RETRY_LONG) {
2249 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2250 return -EINVAL;
b9a5f8ca 2251 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2252 }
b9a5f8ca
JM		 2253 if (changed &
2254 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2255 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2256
2257 return 0;
2258}
2259
7643a2c3 2260static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2261 struct wireless_dev *wdev,
fa61cf70 2262 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2263{
2264 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2265 struct ieee80211_sub_if_data *sdata;
7643a2c3 2266
1ea6f9c0
JB		 2267 if (wdev) {
2268 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2269
2270 switch (type) {
2271 case NL80211_TX_POWER_AUTOMATIC:
2272 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2273 break;
2274 case NL80211_TX_POWER_LIMITED:
2275 case NL80211_TX_POWER_FIXED:
2276 if (mbm < 0 || (mbm % 100))
2277 return -EOPNOTSUPP;
2278 sdata->user_power_level = MBM_TO_DBM(mbm);
2279 break;
2280 }
2281
2282 ieee80211_recalc_txpower(sdata);
2283
2284 return 0;
2285 }
55de908a 2286
7643a2c3 2287 switch (type) {
fa61cf70 2288 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2289 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
7643a2c3 2290 break;
fa61cf70 2291 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2292 case NL80211_TX_POWER_FIXED:
2293 if (mbm < 0 || (mbm % 100))
2294 return -EOPNOTSUPP;
fa61cf70 2295 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2296 break;
7643a2c3
JB		 2297 }
2298
1ea6f9c0
JB		 2299 mutex_lock(&local->iflist_mtx);
2300 list_for_each_entry(sdata, &local->interfaces, list)
2301 sdata->user_power_level = local->user_power_level;
2302 list_for_each_entry(sdata, &local->interfaces, list)
2303 ieee80211_recalc_txpower(sdata);
2304 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2305
2306 return 0;
2307}
2308
c8442118
JB		 2309static int ieee80211_get_tx_power(struct wiphy *wiphy,
2310 struct wireless_dev *wdev,
2311 int *dbm)
7643a2c3
JB		 2312{
2313 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2314 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2315
1ea6f9c0
JB		 2316 if (!local->use_chanctx)
2317 *dbm = local->hw.conf.power_level;
2318 else
2319 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2320
7643a2c3
JB		 2321 return 0;
2322}
2323
ab737a4f 2324static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2325 const u8 *addr)
ab737a4f
JB		 2326{
2327 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2328
2329 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2330
2331 return 0;
2332}
2333
1f87f7d3
JB		 2334static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2335{
2336 struct ieee80211_local *local = wiphy_priv(wiphy);
2337
2338 drv_rfkill_poll(local);
2339}
2340
aff89a9b 2341#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2342static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2343 struct wireless_dev *wdev,
2344 void *data, int len)
aff89a9b
JB		 2345{
2346 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2347 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2348
2349 if (!local->ops->testmode_cmd)
2350 return -EOPNOTSUPP;
2351
52981cd7
DS		 2352 if (wdev) {
2353 struct ieee80211_sub_if_data *sdata;
2354
2355 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2356 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2357 vif = &sdata->vif;
2358 }
2359
2360 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2361}
71063f0e
WYG		 2362
2363static int ieee80211_testmode_dump(struct wiphy *wiphy,
2364 struct sk_buff *skb,
2365 struct netlink_callback *cb,
2366 void *data, int len)
2367{
2368 struct ieee80211_local *local = wiphy_priv(wiphy);
2369
2370 if (!local->ops->testmode_dump)
2371 return -EOPNOTSUPP;
2372
2373 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2374}
aff89a9b
JB		 2375#endif
2376
687da132
EG		 2377int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2378 enum ieee80211_smps_mode smps_mode)
2379{
2380 struct sta_info *sta;
2381 enum ieee80211_smps_mode old_req;
2382 int i;
2383
2384 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2385 return -EINVAL;
2386
2387 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2388 return 0;
2389
2390 old_req = sdata->u.ap.req_smps;
2391 sdata->u.ap.req_smps = smps_mode;
2392
2393 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2394 if (old_req == smps_mode ||
2395 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2396 return 0;
2397
2398 /* If no associated stations, there's no need to do anything */
2399 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2400 sdata->smps_mode = smps_mode;
2401 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2402 return 0;
2403 }
2404
2405 ht_dbg(sdata,
2406 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2407 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2408
2409 mutex_lock(&sdata->local->sta_mtx);
2410 for (i = 0; i < STA_HASH_SIZE; i++) {
2411 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2412 lockdep_is_held(&sdata->local->sta_mtx));
2413 sta;
2414 sta = rcu_dereference_protected(sta->hnext,
2415 lockdep_is_held(&sdata->local->sta_mtx))) {
2416 /*
2417 * Only stations associated to our AP and
2418 * associated VLANs
2419 */
2420 if (sta->sdata->bss != &sdata->u.ap)
2421 continue;
2422
2423 /* This station doesn't support MIMO - skip it */
2424 if (sta_info_tx_streams(sta) == 1)
2425 continue;
2426
2427 /*
2428 * Don't wake up a STA just to send the action frame
2429 * unless we are getting more restrictive.
2430 */
2431 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2432 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2433 smps_mode)) {
2434 ht_dbg(sdata,
2435 "Won't send SMPS to sleeping STA %pM\n",
2436 sta->sta.addr);
2437 continue;
2438 }
2439
2440 /*
2441 * If the STA is not authorized, wait until it gets
2442 * authorized and the action frame will be sent then.
2443 */
2444 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2445 continue;
2446
2447 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2448 ieee80211_send_smps_action(sdata, smps_mode,
2449 sta->sta.addr,
2450 sdata->vif.bss_conf.bssid);
2451 }
2452 }
2453 mutex_unlock(&sdata->local->sta_mtx);
2454
2455 sdata->smps_mode = smps_mode;
2456 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2457
2458 return 0;
2459}
2460
2461int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2462 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2463{
2464 const u8 *ap;
2465 enum ieee80211_smps_mode old_req;
2466 int err;
2467
8d61ffa5 2468 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2469
687da132
EG		 2470 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2471 return -EINVAL;
2472
0f78231b
JB		 2473 old_req = sdata->u.mgd.req_smps;
2474 sdata->u.mgd.req_smps = smps_mode;
2475
2476 if (old_req == smps_mode &&
2477 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2478 return 0;
2479
2480 /*
2481 * If not associated, or current association is not an HT
04ecd257
JB		 2482 * association, there's no need to do anything, just store
2483 * the new value until we associate.
0f78231b
JB		 2484 */
2485 if (!sdata->u.mgd.associated ||
4bf88530 2486 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2487 return 0;
0f78231b 2488
0c1ad2ca 2489 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2490
2491 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2492 if (sdata->u.mgd.powersave)
2493 smps_mode = IEEE80211_SMPS_DYNAMIC;
2494 else
2495 smps_mode = IEEE80211_SMPS_OFF;
2496 }
2497
2498 /* send SM PS frame to AP */
2499 err = ieee80211_send_smps_action(sdata, smps_mode,
2500 ap, ap);
2501 if (err)
2502 sdata->u.mgd.req_smps = old_req;
2503
2504 return err;
2505}
2506
bc92afd9
JB		 2507static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2508 bool enabled, int timeout)
2509{
2510 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2511 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2512
2d3db210 2513 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2514 return -EOPNOTSUPP;
2515
bc92afd9
JB		 2516 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2517 return -EOPNOTSUPP;
2518
2519 if (enabled == sdata->u.mgd.powersave &&
ff616381 2520 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2521 return 0;
2522
2523 sdata->u.mgd.powersave = enabled;
ff616381 2524 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2525
0f78231b 2526 /* no change, but if automatic follow powersave */
ed405be5 2527 sdata_lock(sdata);
687da132 2528 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2529 sdata_unlock(sdata);
0f78231b 2530
bc92afd9
JB		 2531 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2532 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2533
2534 ieee80211_recalc_ps(local, -1);
ab095877 2535 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2536
2537 return 0;
2538}
2539
a97c13c3
JO		 2540static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2541 struct net_device *dev,
2542 s32 rssi_thold, u32 rssi_hyst)
2543{
2544 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2545 struct ieee80211_vif *vif = &sdata->vif;
2546 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2547
a97c13c3
JO		 2548 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2549 rssi_hyst == bss_conf->cqm_rssi_hyst)
2550 return 0;
2551
2552 bss_conf->cqm_rssi_thold = rssi_thold;
2553 bss_conf->cqm_rssi_hyst = rssi_hyst;
2554
2555 /* tell the driver upon association, unless already associated */
ea086359
JB		 2556 if (sdata->u.mgd.associated &&
2557 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2558 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2559
2560 return 0;
2561}
2562
9930380f
JB		 2563static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2564 struct net_device *dev,
2565 const u8 *addr,
2566 const struct cfg80211_bitrate_mask *mask)
2567{
2568 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2569 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2570 int i, ret;
2c7e6bc9 2571
554a43d5
EP		 2572 if (!ieee80211_sdata_running(sdata))
2573 return -ENETDOWN;
2574
bdbfd6b5
SM		 2575 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2576 ret = drv_set_bitrate_mask(local, sdata, mask);
2577 if (ret)
2578 return ret;
2579 }
9930380f 2580
19468413 2581 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2582 struct ieee80211_supported_band *sband = wiphy->bands[i];
2583 int j;
2584
37eb0b16 2585 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2586 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2587 sizeof(mask->control[i].ht_mcs));
2ffbe6d3
FF		 2588
2589 sdata->rc_has_mcs_mask[i] = false;
2590 if (!sband)
2591 continue;
2592
2593 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2594 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2595 sdata->rc_has_mcs_mask[i] = true;
2596 break;
2597 }
19468413 2598 }
9930380f 2599
37eb0b16 2600 return 0;
9930380f
JB		 2601}
2602
2eb278e0
JB		 2603static int ieee80211_start_roc_work(struct ieee80211_local *local,
2604 struct ieee80211_sub_if_data *sdata,
2605 struct ieee80211_channel *channel,
2eb278e0 2606 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2607 struct sk_buff *txskb,
2608 enum ieee80211_roc_type type)
2eb278e0
JB		 2609{
2610 struct ieee80211_roc_work *roc, *tmp;
2611 bool queued = false;
21f83589 2612 int ret;
21f83589
JB		 2613
2614 lockdep_assert_held(&local->mtx);
2615
fe57d9f5
JB		 2616 if (local->use_chanctx && !local->ops->remain_on_channel)
2617 return -EOPNOTSUPP;
2618
2eb278e0
JB		 2619 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2620 if (!roc)
2621 return -ENOMEM;
2622
2623 roc->chan = channel;
2eb278e0
JB		 2624 roc->duration = duration;
2625 roc->req_duration = duration;
2626 roc->frame = txskb;
d339d5ca 2627 roc->type = type;
2eb278e0
JB		 2628 roc->mgmt_tx_cookie = (unsigned long)txskb;
2629 roc->sdata = sdata;
2630 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2631 INIT_LIST_HEAD(&roc->dependents);
2632
2633 /* if there's one pending or we're scanning, queue this one */
164eb02d
SW		 2634 if (!list_empty(&local->roc_list) ||
2635 local->scanning || local->radar_detect_enabled)
2eb278e0
JB		 2636 goto out_check_combine;
2637
2638 /* if not HW assist, just queue & schedule work */
2639 if (!local->ops->remain_on_channel) {
2640 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2641 goto out_queue;
2642 }
2643
2644 /* otherwise actually kick it off here (for error handling) */
2645
2646 /*
2647 * If the duration is zero, then the driver
2648 * wouldn't actually do anything. Set it to
2649 * 10 for now.
2650 *
2651 * TODO: cancel the off-channel operation
2652 * when we get the SKB's TX status and
2653 * the wait time was zero before.
2654 */
2655 if (!duration)
2656 duration = 10;
2657
d339d5ca 2658 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2659 if (ret) {
2eb278e0
JB		 2660 kfree(roc);
2661 return ret;
21f83589
JB		 2662 }
2663
2eb278e0
JB		 2664 roc->started = true;
2665 goto out_queue;
2666
2667 out_check_combine:
2668 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2669 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2670 continue;
2671
2672 /*
2673 * Extend this ROC if possible:
2674 *
2675 * If it hasn't started yet, just increase the duration
2676 * and add the new one to the list of dependents.
d339d5ca
IP		 2677 * If the type of the new ROC has higher priority, modify the
2678 * type of the previous one to match that of the new one.
2eb278e0
JB		 2679 */
2680 if (!tmp->started) {
2681 list_add_tail(&roc->list, &tmp->dependents);
2682 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2683 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2684 queued = true;
2685 break;
2686 }
2687
2688 /* If it has already started, it's more difficult ... */
2689 if (local->ops->remain_on_channel) {
2690 unsigned long j = jiffies;
2691
2692 /*
2693 * In the offloaded ROC case, if it hasn't begun, add
2694 * this new one to the dependent list to be handled
d339d5ca 2695 * when the master one begins. If it has begun,
2eb278e0
JB		 2696 * check that there's still a minimum time left and
2697 * if so, start this one, transmitting the frame, but
d339d5ca 2698 * add it to the list directly after this one with
2eb278e0
JB		 2699 * a reduced time so we'll ask the driver to execute
2700 * it right after finishing the previous one, in the
2701 * hope that it'll also be executed right afterwards,
2702 * effectively extending the old one.
2703 * If there's no minimum time left, just add it to the
2704 * normal list.
d339d5ca
IP		 2705 * TODO: the ROC type is ignored here, assuming that it
2706 * is better to immediately use the current ROC.
2eb278e0
JB		 2707 */
2708 if (!tmp->hw_begun) {
2709 list_add_tail(&roc->list, &tmp->dependents);
2710 queued = true;
2711 break;
2712 }
2713
2714 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2715 tmp->hw_start_time +
2716 msecs_to_jiffies(tmp->duration))) {
2717 int new_dur;
2718
2719 ieee80211_handle_roc_started(roc);
2720
2721 new_dur = roc->duration -
2722 jiffies_to_msecs(tmp->hw_start_time +
2723 msecs_to_jiffies(
2724 tmp->duration) -
2725 j);
2726
2727 if (new_dur > 0) {
2728 /* add right after tmp */
2729 list_add(&roc->list, &tmp->list);
2730 } else {
2731 list_add_tail(&roc->list,
2732 &tmp->dependents);
2733 }
2734 queued = true;
2735 }
2736 } else if (del_timer_sync(&tmp->work.timer)) {
2737 unsigned long new_end;
2738
2739 /*
2740 * In the software ROC case, cancel the timer, if
2741 * that fails then the finish work is already
2742 * queued/pending and thus we queue the new ROC
2743 * normally, if that succeeds then we can extend
2744 * the timer duration and TX the frame (if any.)
2745 */
2746
2747 list_add_tail(&roc->list, &tmp->dependents);
2748 queued = true;
2749
2750 new_end = jiffies + msecs_to_jiffies(roc->duration);
2751
2752 /* ok, it was started & we canceled timer */
2753 if (time_after(new_end, tmp->work.timer.expires))
2754 mod_timer(&tmp->work.timer, new_end);
2755 else
2756 add_timer(&tmp->work.timer);
2757
2758 ieee80211_handle_roc_started(roc);
2759 }
2760 break;
2761 }
2762
2763 out_queue:
2764 if (!queued)
2765 list_add_tail(&roc->list, &local->roc_list);
2766
2767 /*
50febf6a 2768 * cookie is either the roc cookie (for normal roc)
2eb278e0
JB		 2769 * or the SKB (for mgmt TX)
2770 */
50febf6a
JB		 2771 if (!txskb) {
2772 /* local->mtx protects this */
2773 local->roc_cookie_counter++;
2774 roc->cookie = local->roc_cookie_counter;
2775 /* wow, you wrapped 64 bits ... more likely a bug */
2776 if (WARN_ON(roc->cookie == 0)) {
2777 roc->cookie = 1;
2778 local->roc_cookie_counter++;
2779 }
2780 *cookie = roc->cookie;
2781 } else {
2eb278e0 2782 *cookie = (unsigned long)txskb;
50febf6a 2783 }
2eb278e0
JB		 2784
2785 return 0;
21f83589
JB		 2786}
2787
b8bc4b0a 2788static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2789 struct wireless_dev *wdev,
b8bc4b0a 2790 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2791 unsigned int duration,
2792 u64 *cookie)
2793{
71bbc994 2794 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2795 struct ieee80211_local *local = sdata->local;
2eb278e0 2796 int ret;
21f83589 2797
2eb278e0 2798 mutex_lock(&local->mtx);
42d97a59 2799 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2800 duration, cookie, NULL,
2801 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2802 mutex_unlock(&local->mtx);
b8bc4b0a 2803
2eb278e0 2804 return ret;
b8bc4b0a
JB		 2805}
2806
2eb278e0
JB		 2807static int ieee80211_cancel_roc(struct ieee80211_local *local,
2808 u64 cookie, bool mgmt_tx)
21f83589 2809{
2eb278e0 2810 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2811 int ret;
2812
2eb278e0
JB		 2813 mutex_lock(&local->mtx);
2814 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2815 struct ieee80211_roc_work *dep, *tmp2;
2816
2817 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2818 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2819 continue;
2820 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2821 continue;
2822 /* found dependent item -- just remove it */
2823 list_del(&dep->list);
2824 mutex_unlock(&local->mtx);
2825
3fbd45ca 2826 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2827 return 0;
2828 }
2829
50febf6a 2830 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2831 continue;
2832 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2833 continue;
21f83589 2834
2eb278e0
JB		 2835 found = roc;
2836 break;
2837 }
21f83589 2838
2eb278e0
JB		 2839 if (!found) {
2840 mutex_unlock(&local->mtx);
2841 return -ENOENT;
2842 }
21f83589 2843
e979e33c
JB		 2844 /*
2845 * We found the item to cancel, so do that. Note that it
2846 * may have dependents, which we also cancel (and send
2847 * the expired signal for.) Not doing so would be quite
2848 * tricky here, but we may need to fix it later.
2849 */
2850
2eb278e0
JB		 2851 if (local->ops->remain_on_channel) {
2852 if (found->started) {
2853 ret = drv_cancel_remain_on_channel(local);
2854 if (WARN_ON_ONCE(ret)) {
2855 mutex_unlock(&local->mtx);
2856 return ret;
2857 }
2858 }
21f83589 2859
2eb278e0 2860 list_del(&found->list);
21f83589 2861
0f6b3f59
JB		 2862 if (found->started)
2863 ieee80211_start_next_roc(local);
2eb278e0 2864 mutex_unlock(&local->mtx);
21f83589 2865
3fbd45ca 2866 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2867 } else {
2868 /* work may be pending so use it all the time */
2869 found->abort = true;
2870 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2871
21f83589
JB		 2872 mutex_unlock(&local->mtx);
2873
2eb278e0
JB		 2874 /* work will clean up etc */
2875 flush_delayed_work(&found->work);
3fbd45ca
JB		 2876 WARN_ON(!found->to_be_freed);
2877 kfree(found);
21f83589 2878 }
b8bc4b0a 2879
2eb278e0 2880 return 0;
b8bc4b0a
JB		 2881}
2882
2eb278e0 2883static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2884 struct wireless_dev *wdev,
2eb278e0 2885 u64 cookie)
f30221e4 2886{
71bbc994 2887 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2888 struct ieee80211_local *local = sdata->local;
f30221e4 2889
2eb278e0 2890 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2891}
2892
164eb02d
SW		 2893static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2894 struct net_device *dev,
2895 struct cfg80211_chan_def *chandef)
2896{
2897 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2898 struct ieee80211_local *local = sdata->local;
2899 unsigned long timeout;
2900 int err;
2901
2902 if (!list_empty(&local->roc_list) || local->scanning)
2903 return -EBUSY;
2904
2905 /* whatever, but channel contexts should not complain about that one */
2906 sdata->smps_mode = IEEE80211_SMPS_OFF;
2907 sdata->needed_rx_chains = local->rx_chains;
2908 sdata->radar_required = true;
2909
2910 mutex_lock(&local->iflist_mtx);
2911 err = ieee80211_vif_use_channel(sdata, chandef,
2912 IEEE80211_CHANCTX_SHARED);
2913 mutex_unlock(&local->iflist_mtx);
2914 if (err)
2915 return err;
2916
2917 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2918 ieee80211_queue_delayed_work(&sdata->local->hw,
2919 &sdata->dfs_cac_timer_work, timeout);
2920
2921 return 0;
2922}
2923
73da7d5b
SW		 2924static struct cfg80211_beacon_data *
2925cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2926{
2927 struct cfg80211_beacon_data *new_beacon;
2928 u8 *pos;
2929 int len;
2930
2931 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2932 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2933 beacon->probe_resp_len;
2934
2935 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2936 if (!new_beacon)
2937 return NULL;
2938
2939 pos = (u8 *)(new_beacon + 1);
2940 if (beacon->head_len) {
2941 new_beacon->head_len = beacon->head_len;
2942 new_beacon->head = pos;
2943 memcpy(pos, beacon->head, beacon->head_len);
2944 pos += beacon->head_len;
2945 }
2946 if (beacon->tail_len) {
2947 new_beacon->tail_len = beacon->tail_len;
2948 new_beacon->tail = pos;
2949 memcpy(pos, beacon->tail, beacon->tail_len);
2950 pos += beacon->tail_len;
2951 }
2952 if (beacon->beacon_ies_len) {
2953 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2954 new_beacon->beacon_ies = pos;
2955 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2956 pos += beacon->beacon_ies_len;
2957 }
2958 if (beacon->proberesp_ies_len) {
2959 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2960 new_beacon->proberesp_ies = pos;
2961 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2962 pos += beacon->proberesp_ies_len;
2963 }
2964 if (beacon->assocresp_ies_len) {
2965 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2966 new_beacon->assocresp_ies = pos;
2967 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2968 pos += beacon->assocresp_ies_len;
2969 }
2970 if (beacon->probe_resp_len) {
2971 new_beacon->probe_resp_len = beacon->probe_resp_len;
2972 beacon->probe_resp = pos;
2973 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2974 pos += beacon->probe_resp_len;
2975 }
2976
2977 return new_beacon;
2978}
2979
2980void ieee80211_csa_finalize_work(struct work_struct *work)
2981{
2982 struct ieee80211_sub_if_data *sdata =
2983 container_of(work, struct ieee80211_sub_if_data,
2984 csa_finalize_work);
2985 struct ieee80211_local *local = sdata->local;
0951ebb8 2986 int err, changed = 0;
73da7d5b 2987
e487eaeb
SW		 2988 sdata_lock(sdata);
2989 /* AP might have been stopped while waiting for the lock. */
2990 if (!sdata->vif.csa_active)
2991 goto unlock;
2992
73da7d5b 2993 if (!ieee80211_sdata_running(sdata))
e487eaeb 2994 goto unlock;
73da7d5b 2995
73da7d5b 2996 sdata->radar_required = sdata->csa_radar_required;
33787fc4 2997 err = ieee80211_vif_change_channel(sdata, &changed);
73da7d5b 2998 if (WARN_ON(err < 0))
e487eaeb 2999 goto unlock;
73da7d5b 3000
7578d575 3001 if (!local->use_chanctx) {
33787fc4 3002 local->_oper_chandef = sdata->csa_chandef;
7578d575
AN		 3003 ieee80211_hw_config(local, 0);
3004 }
3005
cd7760e6 3006 ieee80211_bss_info_change_notify(sdata, changed);
73da7d5b 3007
e487eaeb 3008 sdata->vif.csa_active = false;
cd7760e6
SW		 3009 switch (sdata->vif.type) {
3010 case NL80211_IFTYPE_AP:
3011 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3012 if (err < 0)
e487eaeb
SW		 3013 goto unlock;
3014
cd7760e6
SW		 3015 changed |= err;
3016 kfree(sdata->u.ap.next_beacon);
3017 sdata->u.ap.next_beacon = NULL;
3018
3019 ieee80211_bss_info_change_notify(sdata, err);
3020 break;
3021 case NL80211_IFTYPE_ADHOC:
3022 ieee80211_ibss_finish_csa(sdata);
3023 break;
b8456a14
CYY		 3024#ifdef CONFIG_MAC80211_MESH
3025 case NL80211_IFTYPE_MESH_POINT:
3026 err = ieee80211_mesh_finish_csa(sdata);
3027 if (err < 0)
e487eaeb 3028 goto unlock;
b8456a14
CYY		 3029 break;
3030#endif
cd7760e6
SW		 3031 default:
3032 WARN_ON(1);
e487eaeb 3033 goto unlock;
cd7760e6 3034 }
73da7d5b
SW		 3035
3036 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3037 IEEE80211_MAX_QUEUE_MAP,
3038 IEEE80211_QUEUE_STOP_REASON_CSA);
3039
33787fc4 3040 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
e487eaeb
SW		 3041
3042unlock:
3043 sdata_unlock(sdata);
73da7d5b
SW		 3044}
3045
3046static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3047 struct cfg80211_csa_settings *params)
3048{
3049 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3050 struct ieee80211_local *local = sdata->local;
3051 struct ieee80211_chanctx_conf *chanctx_conf;
3052 struct ieee80211_chanctx *chanctx;
c6da674a 3053 struct ieee80211_if_mesh __maybe_unused *ifmsh;
73da7d5b
SW		 3054 int err, num_chanctx;
3055
7ca133bc
SW		 3056 lockdep_assert_held(&sdata->wdev.mtx);
3057
73da7d5b
SW		 3058 if (!list_empty(&local->roc_list) || local->scanning)
3059 return -EBUSY;
3060
3061 if (sdata->wdev.cac_started)
3062 return -EBUSY;
3063
3064 if (cfg80211_chandef_identical(&params->chandef,
3065 &sdata->vif.bss_conf.chandef))
3066 return -EINVAL;
3067
3068 rcu_read_lock();
3069 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3070 if (!chanctx_conf) {
3071 rcu_read_unlock();
3072 return -EBUSY;
3073 }
3074
3075 /* don't handle for multi-VIF cases */
3076 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
3077 if (chanctx->refcount > 1) {
3078 rcu_read_unlock();
3079 return -EBUSY;
3080 }
3081 num_chanctx = 0;
3082 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3083 num_chanctx++;
3084 rcu_read_unlock();
3085
3086 if (num_chanctx > 1)
3087 return -EBUSY;
3088
3089 /* don't allow another channel switch if one is already active. */
3090 if (sdata->vif.csa_active)
3091 return -EBUSY;
3092
73da7d5b
SW		 3093 switch (sdata->vif.type) {
3094 case NL80211_IFTYPE_AP:
cd7760e6
SW		 3095 sdata->csa_counter_offset_beacon =
3096 params->counter_offset_beacon;
3097 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3098 sdata->u.ap.next_beacon =
3099 cfg80211_beacon_dup(&params->beacon_after);
3100 if (!sdata->u.ap.next_beacon)
3101 return -ENOMEM;
3102
3103 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3104 if (err < 0) {
3105 kfree(sdata->u.ap.next_beacon);
3106 return err;
3107 }
3108 break;
3109 case NL80211_IFTYPE_ADHOC:
3110 if (!sdata->vif.bss_conf.ibss_joined)
3111 return -EINVAL;
3112
3113 if (params->chandef.width != sdata->u.ibss.chandef.width)
3114 return -EINVAL;
3115
3116 switch (params->chandef.width) {
3117 case NL80211_CHAN_WIDTH_40:
3118 if (cfg80211_get_chandef_type(&params->chandef) !=
3119 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3120 return -EINVAL;
3121 case NL80211_CHAN_WIDTH_5:
3122 case NL80211_CHAN_WIDTH_10:
3123 case NL80211_CHAN_WIDTH_20_NOHT:
3124 case NL80211_CHAN_WIDTH_20:
3125 break;
3126 default:
3127 return -EINVAL;
3128 }
3129
3130 /* changes into another band are not supported */
3131 if (sdata->u.ibss.chandef.chan->band !=
3132 params->chandef.chan->band)
3133 return -EINVAL;
3134
3135 err = ieee80211_ibss_csa_beacon(sdata, params);
3136 if (err < 0)
3137 return err;
73da7d5b 3138 break;
c6da674a
CYY		 3139#ifdef CONFIG_MAC80211_MESH
3140 case NL80211_IFTYPE_MESH_POINT:
3141 ifmsh = &sdata->u.mesh;
3142
3143 if (!ifmsh->mesh_id)
3144 return -EINVAL;
3145
3146 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3147 return -EINVAL;
3148
3149 /* changes into another band are not supported */
3150 if (sdata->vif.bss_conf.chandef.chan->band !=
3151 params->chandef.chan->band)
3152 return -EINVAL;
3153
3f718fd8
CYY		 3154 ifmsh->chsw_init = true;
3155 if (!ifmsh->pre_value)
3156 ifmsh->pre_value = 1;
3157 else
3158 ifmsh->pre_value++;
3159
b8456a14 3160 err = ieee80211_mesh_csa_beacon(sdata, params, true);
3f718fd8
CYY		 3161 if (err < 0) {
3162 ifmsh->chsw_init = false;
c6da674a 3163 return err;
3f718fd8 3164 }
c6da674a
CYY		 3165 break;
3166#endif
73da7d5b
SW		 3167 default:
3168 return -EOPNOTSUPP;
3169 }
3170
73da7d5b
SW		 3171 sdata->csa_radar_required = params->radar_required;
3172
3173 if (params->block_tx)
3174 ieee80211_stop_queues_by_reason(&local->hw,
3175 IEEE80211_MAX_QUEUE_MAP,
3176 IEEE80211_QUEUE_STOP_REASON_CSA);
3177
33787fc4 3178 sdata->csa_chandef = params->chandef;
73da7d5b
SW		 3179 sdata->vif.csa_active = true;
3180
3181 ieee80211_bss_info_change_notify(sdata, err);
3182 drv_channel_switch_beacon(sdata, &params->chandef);
3183
3184 return 0;
3185}
3186
71bbc994 3187static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3188 struct cfg80211_mgmt_tx_params *params,
3189 u64 *cookie)
026331c4 3190{
71bbc994 3191 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d
JB		 3192 struct ieee80211_local *local = sdata->local;
3193 struct sk_buff *skb;
3194 struct sta_info *sta;
b176e629 3195 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3196 bool need_offchan = false;
e247bd90 3197 u32 flags;
2eb278e0 3198 int ret;
f7ca38df 3199
b176e629 3200 if (params->dont_wait_for_ack)
e247bd90
JB		 3201 flags = IEEE80211_TX_CTL_NO_ACK;
3202 else
3203 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3204 IEEE80211_TX_CTL_REQ_TX_STATUS;
3205
b176e629 3206 if (params->no_cck)
aad14ceb
RM		 3207 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3208
9d38d85d
JB		 3209 switch (sdata->vif.type) {
3210 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3211 if (!sdata->vif.bss_conf.ibss_joined)
3212 need_offchan = true;
3213 /* fall through */
3214#ifdef CONFIG_MAC80211_MESH
3215 case NL80211_IFTYPE_MESH_POINT:
3216 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3217 !sdata->u.mesh.mesh_id_len)
3218 need_offchan = true;
3219 /* fall through */
3220#endif
663fcafd
JB		 3221 case NL80211_IFTYPE_AP:
3222 case NL80211_IFTYPE_AP_VLAN:
3223 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3224 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3225 !ieee80211_vif_is_mesh(&sdata->vif) &&
3226 !rcu_access_pointer(sdata->bss->beacon))
3227 need_offchan = true;
663fcafd 3228 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3229 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3230 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3231 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3232 break;
3233 rcu_read_lock();
3234 sta = sta_info_get(sdata, mgmt->da);
3235 rcu_read_unlock();
3236 if (!sta)
3237 return -ENOLINK;
3238 break;
3239 case NL80211_IFTYPE_STATION:
663fcafd 3240 case NL80211_IFTYPE_P2P_CLIENT:
2eb278e0
JB		 3241 if (!sdata->u.mgd.associated)
3242 need_offchan = true;
9d38d85d 3243 break;
f142c6b9
JB		 3244 case NL80211_IFTYPE_P2P_DEVICE:
3245 need_offchan = true;
3246 break;
9d38d85d
JB		 3247 default:
3248 return -EOPNOTSUPP;
3249 }
3250
f7aeb6fb
AQ		 3251 /* configurations requiring offchan cannot work if no channel has been
3252 * specified
3253 */
b176e629 3254 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3255 return -EINVAL;
3256
2eb278e0
JB		 3257 mutex_lock(&local->mtx);
3258
3259 /* Check if the operating channel is the requested channel */
3260 if (!need_offchan) {
55de908a
JB		 3261 struct ieee80211_chanctx_conf *chanctx_conf;
3262
3263 rcu_read_lock();
3264 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3265
f7aeb6fb 3266 if (chanctx_conf) {
b176e629
AO		 3267 need_offchan = params->chan &&
3268 (params->chan !=
3269 chanctx_conf->def.chan);
3270 } else if (!params->chan) {
f7aeb6fb
AQ		 3271 ret = -EINVAL;
3272 rcu_read_unlock();
3273 goto out_unlock;
3274 } else {
2eb278e0 3275 need_offchan = true;
f7aeb6fb 3276 }
55de908a 3277 rcu_read_unlock();
2eb278e0
JB		 3278 }
3279
b176e629 3280 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3281 ret = -EBUSY;
3282 goto out_unlock;
3283 }
3284
b176e629 3285 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3286 if (!skb) {
3287 ret = -ENOMEM;
3288 goto out_unlock;
3289 }
9d38d85d
JB		 3290 skb_reserve(skb, local->hw.extra_tx_headroom);
3291
b176e629 3292 memcpy(skb_put(skb, params->len), params->buf, params->len);
9d38d85d
JB		 3293
3294 IEEE80211_SKB_CB(skb)->flags = flags;
3295
3296 skb->dev = sdata->dev;
9d38d85d 3297
2eb278e0 3298 if (!need_offchan) {
7f9f78ab 3299 *cookie = (unsigned long) skb;
f30221e4 3300 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3301 ret = 0;
3302 goto out_unlock;
f30221e4
JB		 3303 }
3304
6c17b77b
SF		 3305 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3306 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2eb278e0
JB		 3307 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3308 IEEE80211_SKB_CB(skb)->hw_queue =
3309 local->hw.offchannel_tx_hw_queue;
f30221e4 3310
2eb278e0 3311 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3312 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3313 params->wait, cookie, skb,
d339d5ca 3314 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3315 if (ret)
3316 kfree_skb(skb);
3317 out_unlock:
3318 mutex_unlock(&local->mtx);
3319 return ret;
026331c4
JM		 3320}
3321
f30221e4 3322static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3323 struct wireless_dev *wdev,
f30221e4
JB		 3324 u64 cookie)
3325{
71bbc994 3326 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3327
2eb278e0 3328 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3329}
3330
7be5086d 3331static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3332 struct wireless_dev *wdev,
7be5086d
JB		 3333 u16 frame_type, bool reg)
3334{
3335 struct ieee80211_local *local = wiphy_priv(wiphy);
3336
6abe0563 3337 switch (frame_type) {
6abe0563
WH		 3338 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3339 if (reg)
3340 local->probe_req_reg++;
3341 else
3342 local->probe_req_reg--;
7be5086d 3343
35f5149e
FF		 3344 if (!local->open_count)
3345 break;
3346
6abe0563
WH		 3347 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3348 break;
3349 default:
3350 break;
3351 }
7be5086d
JB		 3352}
3353
15d96753
BR		 3354static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3355{
3356 struct ieee80211_local *local = wiphy_priv(wiphy);
3357
3358 if (local->started)
3359 return -EOPNOTSUPP;
3360
3361 return drv_set_antenna(local, tx_ant, rx_ant);
3362}
3363
3364static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3365{
3366 struct ieee80211_local *local = wiphy_priv(wiphy);
3367
3368 return drv_get_antenna(local, tx_ant, rx_ant);
3369}
3370
38c09159
JL		 3371static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3372{
3373 struct ieee80211_local *local = wiphy_priv(wiphy);
3374
3375 return drv_set_ringparam(local, tx, rx);
3376}
3377
3378static void ieee80211_get_ringparam(struct wiphy *wiphy,
3379 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3380{
3381 struct ieee80211_local *local = wiphy_priv(wiphy);
3382
3383 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3384}
3385
c68f4b89
JB		 3386static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3387 struct net_device *dev,
3388 struct cfg80211_gtk_rekey_data *data)
3389{
3390 struct ieee80211_local *local = wiphy_priv(wiphy);
3391 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3392
3393 if (!local->ops->set_rekey_data)
3394 return -EOPNOTSUPP;
3395
3396 drv_set_rekey_data(local, sdata, data);
3397
3398 return 0;
3399}
3400
dfe018bf
AN		 3401static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3402{
3403 u8 *pos = (void *)skb_put(skb, 7);
3404
3405 *pos++ = WLAN_EID_EXT_CAPABILITY;
3406 *pos++ = 5; /* len */
3407 *pos++ = 0x0;
3408 *pos++ = 0x0;
3409 *pos++ = 0x0;
3410 *pos++ = 0x0;
3411 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3412}
3413
3414static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3415{
3416 struct ieee80211_local *local = sdata->local;
3417 u16 capab;
3418
3419 capab = 0;
55de908a 3420 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
dfe018bf
AN		 3421 return capab;
3422
3423 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3424 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3425 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3426 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3427
3428 return capab;
3429}
3430
3431static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3432 u8 *peer, u8 *bssid)
3433{
3434 struct ieee80211_tdls_lnkie *lnkid;
3435
3436 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3437
3438 lnkid->ie_type = WLAN_EID_LINK_ID;
3439 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3440
3441 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3442 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3443 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3444}
3445
3446static int
3447ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3448 u8 *peer, u8 action_code, u8 dialog_token,
3449 u16 status_code, struct sk_buff *skb)
3450{
3451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3452 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3453 struct ieee80211_tdls_data *tf;
3454
3455 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3456
3457 memcpy(tf->da, peer, ETH_ALEN);
3458 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3459 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3460 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3461
3462 switch (action_code) {
3463 case WLAN_TDLS_SETUP_REQUEST:
3464 tf->category = WLAN_CATEGORY_TDLS;
3465 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3466
3467 skb_put(skb, sizeof(tf->u.setup_req));
3468 tf->u.setup_req.dialog_token = dialog_token;
3469 tf->u.setup_req.capability =
3470 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3471
55de908a
JB		 3472 ieee80211_add_srates_ie(sdata, skb, false, band);
3473 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3474 ieee80211_tdls_add_ext_capab(skb);
3475 break;
3476 case WLAN_TDLS_SETUP_RESPONSE:
3477 tf->category = WLAN_CATEGORY_TDLS;
3478 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3479
3480 skb_put(skb, sizeof(tf->u.setup_resp));
3481 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3482 tf->u.setup_resp.dialog_token = dialog_token;
3483 tf->u.setup_resp.capability =
3484 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3485
55de908a
JB		 3486 ieee80211_add_srates_ie(sdata, skb, false, band);
3487 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3488 ieee80211_tdls_add_ext_capab(skb);
3489 break;
3490 case WLAN_TDLS_SETUP_CONFIRM:
3491 tf->category = WLAN_CATEGORY_TDLS;
3492 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3493
3494 skb_put(skb, sizeof(tf->u.setup_cfm));
3495 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3496 tf->u.setup_cfm.dialog_token = dialog_token;
3497 break;
3498 case WLAN_TDLS_TEARDOWN:
3499 tf->category = WLAN_CATEGORY_TDLS;
3500 tf->action_code = WLAN_TDLS_TEARDOWN;
3501
3502 skb_put(skb, sizeof(tf->u.teardown));
3503 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3504 break;
3505 case WLAN_TDLS_DISCOVERY_REQUEST:
3506 tf->category = WLAN_CATEGORY_TDLS;
3507 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3508
3509 skb_put(skb, sizeof(tf->u.discover_req));
3510 tf->u.discover_req.dialog_token = dialog_token;
3511 break;
3512 default:
3513 return -EINVAL;
3514 }
3515
3516 return 0;
3517}
3518
3519static int
3520ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3521 u8 *peer, u8 action_code, u8 dialog_token,
3522 u16 status_code, struct sk_buff *skb)
3523{
3524 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3525 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3526 struct ieee80211_mgmt *mgmt;
3527
3528 mgmt = (void *)skb_put(skb, 24);
3529 memset(mgmt, 0, 24);
3530 memcpy(mgmt->da, peer, ETH_ALEN);
3531 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3532 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3533
3534 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3535 IEEE80211_STYPE_ACTION);
3536
3537 switch (action_code) {
3538 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3539 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3540 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3541 mgmt->u.action.u.tdls_discover_resp.action_code =
3542 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3543 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3544 dialog_token;
3545 mgmt->u.action.u.tdls_discover_resp.capability =
3546 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3547
55de908a
JB		 3548 ieee80211_add_srates_ie(sdata, skb, false, band);
3549 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3550 ieee80211_tdls_add_ext_capab(skb);
3551 break;
3552 default:
3553 return -EINVAL;
3554 }
3555
3556 return 0;
3557}
3558
3559static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3560 u8 *peer, u8 action_code, u8 dialog_token,
3561 u16 status_code, const u8 *extra_ies,
3562 size_t extra_ies_len)
3563{
3564 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3565 struct ieee80211_local *local = sdata->local;
dfe018bf
AN		 3566 struct sk_buff *skb = NULL;
3567 bool send_direct;
3568 int ret;
3569
3570 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3571 return -ENOTSUPP;
3572
3573 /* make sure we are in managed mode, and associated */
3574 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3575 !sdata->u.mgd.associated)
3576 return -EINVAL;
3577
bdcbd8e0
JB		 3578 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3579 action_code, peer);
dfe018bf
AN		 3580
3581 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3582 max(sizeof(struct ieee80211_mgmt),
3583 sizeof(struct ieee80211_tdls_data)) +
3584 50 + /* supported rates */
3585 7 + /* ext capab */
3586 extra_ies_len +
3587 sizeof(struct ieee80211_tdls_lnkie));
3588 if (!skb)
3589 return -ENOMEM;
3590
dfe018bf
AN		 3591 skb_reserve(skb, local->hw.extra_tx_headroom);
3592
3593 switch (action_code) {
3594 case WLAN_TDLS_SETUP_REQUEST:
3595 case WLAN_TDLS_SETUP_RESPONSE:
3596 case WLAN_TDLS_SETUP_CONFIRM:
3597 case WLAN_TDLS_TEARDOWN:
3598 case WLAN_TDLS_DISCOVERY_REQUEST:
3599 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3600 action_code, dialog_token,
3601 status_code, skb);
3602 send_direct = false;
3603 break;
3604 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3605 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3606 dialog_token, status_code,
3607 skb);
3608 send_direct = true;
3609 break;
3610 default:
3611 ret = -ENOTSUPP;
3612 break;
3613 }
3614
3615 if (ret < 0)
3616 goto fail;
3617
3618 if (extra_ies_len)
3619 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3620
3621 /* the TDLS link IE is always added last */
3622 switch (action_code) {
3623 case WLAN_TDLS_SETUP_REQUEST:
3624 case WLAN_TDLS_SETUP_CONFIRM:
3625 case WLAN_TDLS_TEARDOWN:
3626 case WLAN_TDLS_DISCOVERY_REQUEST:
3627 /* we are the initiator */
3628 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3629 sdata->u.mgd.bssid);
3630 break;
3631 case WLAN_TDLS_SETUP_RESPONSE:
3632 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3633 /* we are the responder */
3634 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3635 sdata->u.mgd.bssid);
3636 break;
3637 default:
3638 ret = -ENOTSUPP;
3639 goto fail;
3640 }
3641
3642 if (send_direct) {
3643 ieee80211_tx_skb(sdata, skb);
3644 return 0;
3645 }
3646
3647 /*
3648 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3649 * we should default to AC_VI.
3650 */
3651 switch (action_code) {
3652 case WLAN_TDLS_SETUP_REQUEST:
3653 case WLAN_TDLS_SETUP_RESPONSE:
3654 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3655 skb->priority = 2;
3656 break;
3657 default:
3658 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3659 skb->priority = 5;
3660 break;
3661 }
3662
3663 /* disable bottom halves when entering the Tx path */
3664 local_bh_disable();
3665 ret = ieee80211_subif_start_xmit(skb, dev);
3666 local_bh_enable();
3667
3668 return ret;
3669
3670fail:
3671 dev_kfree_skb(skb);
3672 return ret;
3673}
3674
3675static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3676 u8 *peer, enum nl80211_tdls_operation oper)
3677{
941c93cd 3678 struct sta_info *sta;
dfe018bf
AN		 3679 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3680
3681 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3682 return -ENOTSUPP;
3683
3684 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3685 return -EINVAL;
3686
bdcbd8e0 3687 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
dfe018bf
AN		 3688
3689 switch (oper) {
3690 case NL80211_TDLS_ENABLE_LINK:
941c93cd
AN		 3691 rcu_read_lock();
3692 sta = sta_info_get(sdata, peer);
3693 if (!sta) {
3694 rcu_read_unlock();
3695 return -ENOLINK;
3696 }
3697
c2c98fde 3698 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
941c93cd 3699 rcu_read_unlock();
dfe018bf
AN		 3700 break;
3701 case NL80211_TDLS_DISABLE_LINK:
3702 return sta_info_destroy_addr(sdata, peer);
3703 case NL80211_TDLS_TEARDOWN:
3704 case NL80211_TDLS_SETUP:
3705 case NL80211_TDLS_DISCOVERY_REQ:
3706 /* We don't support in-driver setup/teardown/discovery */
3707 return -ENOTSUPP;
3708 default:
3709 return -ENOTSUPP;
3710 }
3711
3712 return 0;
3713}
3714
06500736
JB		 3715static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3716 const u8 *peer, u64 *cookie)
3717{
3718 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3719 struct ieee80211_local *local = sdata->local;
3720 struct ieee80211_qos_hdr *nullfunc;
3721 struct sk_buff *skb;
3722 int size = sizeof(*nullfunc);
3723 __le16 fc;
3724 bool qos;
3725 struct ieee80211_tx_info *info;
3726 struct sta_info *sta;
55de908a
JB		 3727 struct ieee80211_chanctx_conf *chanctx_conf;
3728 enum ieee80211_band band;
06500736
JB		 3729
3730 rcu_read_lock();
55de908a
JB		 3731 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3732 if (WARN_ON(!chanctx_conf)) {
3733 rcu_read_unlock();
3734 return -EINVAL;
3735 }
4bf88530 3736 band = chanctx_conf->def.chan->band;
03bb7f42 3737 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3738 if (sta) {
06500736 3739 qos = test_sta_flag(sta, WLAN_STA_WME);
b4487c2d
JB		 3740 } else {
3741 rcu_read_unlock();
06500736 3742 return -ENOLINK;
b4487c2d 3743 }
06500736
JB		 3744
3745 if (qos) {
3746 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3747 IEEE80211_STYPE_QOS_NULLFUNC |
3748 IEEE80211_FCTL_FROMDS);
3749 } else {
3750 size -= 2;
3751 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3752 IEEE80211_STYPE_NULLFUNC |
3753 IEEE80211_FCTL_FROMDS);
3754 }
3755
3756 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a
JB		 3757 if (!skb) {
3758 rcu_read_unlock();
06500736 3759 return -ENOMEM;
55de908a 3760 }
06500736
JB		 3761
3762 skb->dev = dev;
3763
3764 skb_reserve(skb, local->hw.extra_tx_headroom);
3765
3766 nullfunc = (void *) skb_put(skb, size);
3767 nullfunc->frame_control = fc;
3768 nullfunc->duration_id = 0;
3769 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3770 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3771 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3772 nullfunc->seq_ctrl = 0;
3773
3774 info = IEEE80211_SKB_CB(skb);
3775
3776 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3777 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3778
3779 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3780 skb->priority = 7;
3781 if (qos)
3782 nullfunc->qos_ctrl = cpu_to_le16(7);
3783
3784 local_bh_disable();
55de908a 3785 ieee80211_xmit(sdata, skb, band);
06500736 3786 local_bh_enable();
55de908a 3787 rcu_read_unlock();
06500736
JB		 3788
3789 *cookie = (unsigned long) skb;
3790 return 0;
3791}
3792
683b6d3b
JB		 3793static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3794 struct wireless_dev *wdev,
3795 struct cfg80211_chan_def *chandef)
5b7ccaf3 3796{
55de908a 3797 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3798 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3799 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3800 int ret = -ENODATA;
55de908a
JB		 3801
3802 rcu_read_lock();
feda3027
JB		 3803 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3804 if (chanctx_conf) {
3805 *chandef = chanctx_conf->def;
3806 ret = 0;
3807 } else if (local->open_count > 0 &&
3808 local->open_count == local->monitors &&
3809 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3810 if (local->use_chanctx)
3811 *chandef = local->monitor_chandef;
3812 else
675a0b04 3813 *chandef = local->_oper_chandef;
683b6d3b 3814 ret = 0;
55de908a
JB		 3815 }
3816 rcu_read_unlock();
5b7ccaf3 3817
683b6d3b 3818 return ret;
5b7ccaf3
JB		 3819}
3820
6d52563f
JB		 3821#ifdef CONFIG_PM
3822static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3823{
3824 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3825}
3826#endif
3827
f0706e82
JB		 3828struct cfg80211_ops mac80211_config_ops = {
3829 .add_virtual_intf = ieee80211_add_iface,
3830 .del_virtual_intf = ieee80211_del_iface,
42613db7 3831 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3832 .start_p2p_device = ieee80211_start_p2p_device,
3833 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3834 .add_key = ieee80211_add_key,
3835 .del_key = ieee80211_del_key,
62da92fb 3836 .get_key = ieee80211_get_key,
e8cbb4cb 3837 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3838 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3839 .start_ap = ieee80211_start_ap,
3840 .change_beacon = ieee80211_change_beacon,
3841 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3842 .add_station = ieee80211_add_station,
3843 .del_station = ieee80211_del_station,
3844 .change_station = ieee80211_change_station,
7bbdd2d9 3845 .get_station = ieee80211_get_station,
c5dd9c2b 3846 .dump_station = ieee80211_dump_station,
1289723e 3847 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3848#ifdef CONFIG_MAC80211_MESH
3849 .add_mpath = ieee80211_add_mpath,
3850 .del_mpath = ieee80211_del_mpath,
3851 .change_mpath = ieee80211_change_mpath,
3852 .get_mpath = ieee80211_get_mpath,
3853 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 3854 .update_mesh_config = ieee80211_update_mesh_config,
3855 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3856 .join_mesh = ieee80211_join_mesh,
3857 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3858#endif
9f1ba906 3859 .change_bss = ieee80211_change_bss,
31888487 3860 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3861 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3862 .suspend = ieee80211_suspend,
3863 .resume = ieee80211_resume,
2a519311 3864 .scan = ieee80211_scan,
79f460ca
LC		 3865 .sched_scan_start = ieee80211_sched_scan_start,
3866 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3867 .auth = ieee80211_auth,
3868 .assoc = ieee80211_assoc,
3869 .deauth = ieee80211_deauth,
3870 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3871 .join_ibss = ieee80211_join_ibss,
3872 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3873 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3874 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3875 .set_tx_power = ieee80211_set_tx_power,
3876 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3877 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3878 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3879 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3880 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3881 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3882 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3883 .remain_on_channel = ieee80211_remain_on_channel,
3884 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3885 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3886 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3887 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3888 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3889 .set_antenna = ieee80211_set_antenna,
3890 .get_antenna = ieee80211_get_antenna,
38c09159
JL		 3891 .set_ringparam = ieee80211_set_ringparam,
3892 .get_ringparam = ieee80211_get_ringparam,
c68f4b89 3893 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3894 .tdls_oper = ieee80211_tdls_oper,
3895 .tdls_mgmt = ieee80211_tdls_mgmt,
06500736 3896 .probe_client = ieee80211_probe_client,
b53be792 3897 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3898#ifdef CONFIG_PM
3899 .set_wakeup = ieee80211_set_wakeup,
3900#endif
b1ab7925
BG		 3901 .get_et_sset_count = ieee80211_get_et_sset_count,
3902 .get_et_stats = ieee80211_get_et_stats,
3903 .get_et_strings = ieee80211_get_et_strings,
5b7ccaf3 3904 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3905 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3906 .channel_switch = ieee80211_channel_switch,
f0706e82 3907};
Linux kernel - Deliverables
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