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mac80211: align ieee80211_mesh_csa_beacon() with ieee80211_assign_beacon()
[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
f0706e82
JB		 5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
e8cbb4cb 9#include <linux/ieee80211.h>
f0706e82
JB		 10#include <linux/nl80211.h>
11#include <linux/rtnetlink.h>
5a0e3ad6 12#include <linux/slab.h>
881d966b 13#include <net/net_namespace.h>
5dfdaf58 14#include <linux/rcupdate.h>
dfe018bf 15#include <linux/if_ether.h>
f0706e82
JB		 16#include <net/cfg80211.h>
17#include "ieee80211_i.h"
24487981 18#include "driver-ops.h"
e0eb6859 19#include "cfg.h"
2c8dccc7 20#include "rate.h"
c5dd9c2b 21#include "mesh.h"
c5dd9c2b 22
552bff0c
JB		 23static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
84efbb84
JB		 25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
f0706e82
JB		 28{
29 struct ieee80211_local *local = wiphy_priv(wiphy);
84efbb84 30 struct wireless_dev *wdev;
8cc9a739
MW		 31 struct ieee80211_sub_if_data *sdata;
32 int err;
f0706e82 33
84efbb84 34 err = ieee80211_if_add(local, name, &wdev, type, params);
f9e10ce4
JB		 35 if (err)
36 return ERR_PTR(err);
8cc9a739 37
f9e10ce4 38 if (type == NL80211_IFTYPE_MONITOR && flags) {
84efbb84 39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
f9e10ce4
JB		 40 sdata->u.mntr_flags = *flags;
41 }
42
84efbb84 43 return wdev;
f0706e82
JB		 44}
45
84efbb84 46static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
f0706e82 47{
84efbb84 48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
f0706e82 49
75636525 50 return 0;
f0706e82
JB		 51}
52
e36d56b6
JB		 53static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
2ec600d6
LCC		 55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
42613db7 57{
9607e6b6 58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 59 int ret;
42613db7 60
05c914fe 61 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 62 if (ret)
63 return ret;
42613db7 64
9bc383de
JB		 65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
a9b3cd7f 67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
9bc383de
JB		 68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
85416a4f
CL		 72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
74
75 if (ieee80211_sdata_running(sdata)) {
31eba5bc
FF		 76 u32 mask = MONITOR_FLAG_COOK_FRAMES |
77 MONITOR_FLAG_ACTIVE;
78
85416a4f 79 /*
31eba5bc
FF		 80 * Prohibit MONITOR_FLAG_COOK_FRAMES and
81 * MONITOR_FLAG_ACTIVE to be changed while the
82 * interface is up.
85416a4f
CL		 83 * Else we would need to add a lot of cruft
84 * to update everything:
85 * cooked_mntrs, monitor and all fif_* counters
86 * reconfigure hardware
87 */
31eba5bc 88 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
85416a4f
CL		 89 return -EBUSY;
90
91 ieee80211_adjust_monitor_flags(sdata, -1);
92 sdata->u.mntr_flags = *flags;
93 ieee80211_adjust_monitor_flags(sdata, 1);
94
95 ieee80211_configure_filter(local);
96 } else {
97 /*
98 * Because the interface is down, ieee80211_do_stop
99 * and ieee80211_do_open take care of "everything"
100 * mentioned in the comment above.
101 */
102 sdata->u.mntr_flags = *flags;
103 }
104 }
f7917af9 105
42613db7
JB		 106 return 0;
107}
108
f142c6b9
JB		 109static int ieee80211_start_p2p_device(struct wiphy *wiphy,
110 struct wireless_dev *wdev)
111{
112 return ieee80211_do_open(wdev, true);
113}
114
115static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
116 struct wireless_dev *wdev)
117{
118 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
119}
120
b53be792
SW		 121static int ieee80211_set_noack_map(struct wiphy *wiphy,
122 struct net_device *dev,
123 u16 noack_map)
124{
125 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
126
127 sdata->noack_map = noack_map;
128 return 0;
129}
130
e8cbb4cb 131static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 132 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 133 struct key_params *params)
134{
26a58456 135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2475b1cc 136 struct ieee80211_local *local = sdata->local;
e8cbb4cb 137 struct sta_info *sta = NULL;
2475b1cc 138 const struct ieee80211_cipher_scheme *cs = NULL;
db4d1169 139 struct ieee80211_key *key;
3b96766f 140 int err;
e8cbb4cb 141
26a58456 142 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 143 return -ENETDOWN;
144
97359d12 145 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 146 switch (params->cipher) {
147 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 148 case WLAN_CIPHER_SUITE_TKIP:
97359d12 149 case WLAN_CIPHER_SUITE_WEP104:
2475b1cc 150 if (IS_ERR(local->wep_tx_tfm))
97359d12 151 return -EINVAL;
3cfcf6ac 152 break;
2475b1cc
MS		 153 case WLAN_CIPHER_SUITE_CCMP:
154 case WLAN_CIPHER_SUITE_AES_CMAC:
155 case WLAN_CIPHER_SUITE_GCMP:
156 break;
e8cbb4cb 157 default:
2475b1cc 158 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
97359d12 159 break;
e8cbb4cb
JB		 160 }
161
97359d12 162 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
2475b1cc
MS		 163 params->key, params->seq_len, params->seq,
164 cs);
1ac62ba7
BH		 165 if (IS_ERR(key))
166 return PTR_ERR(key);
db4d1169 167
e31b8213
JB		 168 if (pairwise)
169 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
170
2475b1cc 171 mutex_lock(&local->sta_mtx);
3b96766f 172
e8cbb4cb 173 if (mac_addr) {
ff973af7
TP		 174 if (ieee80211_vif_is_mesh(&sdata->vif))
175 sta = sta_info_get(sdata, mac_addr);
176 else
177 sta = sta_info_get_bss(sdata, mac_addr);
1626e0fa
JB		 178 /*
179 * The ASSOC test makes sure the driver is ready to
180 * receive the key. When wpa_supplicant has roamed
181 * using FT, it attempts to set the key before
182 * association has completed, this rejects that attempt
183 * so it will set the key again after assocation.
184 *
185 * TODO: accept the key if we have a station entry and
186 * add it to the device after the station.
187 */
188 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
79cf2dfa 189 ieee80211_key_free_unused(key);
3b96766f
JB		 190 err = -ENOENT;
191 goto out_unlock;
db4d1169 192 }
e8cbb4cb
JB		 193 }
194
e548c49e
JB		 195 switch (sdata->vif.type) {
196 case NL80211_IFTYPE_STATION:
197 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
198 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
199 break;
200 case NL80211_IFTYPE_AP:
201 case NL80211_IFTYPE_AP_VLAN:
202 /* Keys without a station are used for TX only */
203 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
204 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
205 break;
206 case NL80211_IFTYPE_ADHOC:
207 /* no MFP (yet) */
208 break;
209 case NL80211_IFTYPE_MESH_POINT:
210#ifdef CONFIG_MAC80211_MESH
211 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
212 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
213 break;
214#endif
215 case NL80211_IFTYPE_WDS:
216 case NL80211_IFTYPE_MONITOR:
217 case NL80211_IFTYPE_P2P_DEVICE:
218 case NL80211_IFTYPE_UNSPECIFIED:
219 case NUM_NL80211_IFTYPES:
220 case NL80211_IFTYPE_P2P_CLIENT:
221 case NL80211_IFTYPE_P2P_GO:
222 /* shouldn't happen */
223 WARN_ON_ONCE(1);
224 break;
225 }
226
2475b1cc
MS		 227 if (sta)
228 sta->cipher_scheme = cs;
229
3ffc2a90 230 err = ieee80211_key_link(key, sdata, sta);
db4d1169 231
3b96766f 232 out_unlock:
2475b1cc 233 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 234
235 return err;
e8cbb4cb
JB		 236}
237
238static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 239 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 240{
5c0c3641
JB		 241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
242 struct ieee80211_local *local = sdata->local;
e8cbb4cb 243 struct sta_info *sta;
5c0c3641 244 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 245 int ret;
246
5c0c3641
JB		 247 mutex_lock(&local->sta_mtx);
248 mutex_lock(&local->key_mtx);
3b96766f 249
e8cbb4cb 250 if (mac_addr) {
3b96766f
JB		 251 ret = -ENOENT;
252
0e5ded5a 253 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 254 if (!sta)
3b96766f 255 goto out_unlock;
e8cbb4cb 256
5c0c3641 257 if (pairwise)
2475b1cc 258 key = key_mtx_dereference(local, sta->ptk[key_idx]);
5c0c3641 259 else
40b275b6 260 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 261 } else
40b275b6 262 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 263
5c0c3641 264 if (!key) {
3b96766f
JB		 265 ret = -ENOENT;
266 goto out_unlock;
267 }
e8cbb4cb 268
3b8d9c29 269 ieee80211_key_free(key, true);
e8cbb4cb 270
3b96766f
JB		 271 ret = 0;
272 out_unlock:
5c0c3641
JB		 273 mutex_unlock(&local->key_mtx);
274 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 275
276 return ret;
e8cbb4cb
JB		 277}
278
62da92fb 279static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 280 u8 key_idx, bool pairwise, const u8 *mac_addr,
281 void *cookie,
62da92fb
JB		 282 void (*callback)(void *cookie,
283 struct key_params *params))
284{
14db74bc 285 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 286 struct sta_info *sta = NULL;
287 u8 seq[6] = {0};
288 struct key_params params;
e31b8213 289 struct ieee80211_key *key = NULL;
aba83a0b 290 u64 pn64;
62da92fb
JB		 291 u32 iv32;
292 u16 iv16;
293 int err = -ENOENT;
294
14db74bc
JB		 295 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
296
3b96766f
JB		 297 rcu_read_lock();
298
62da92fb 299 if (mac_addr) {
0e5ded5a 300 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 301 if (!sta)
302 goto out;
303
354e159d 304 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
2475b1cc 305 key = rcu_dereference(sta->ptk[key_idx]);
31f1f4ec
MS		 306 else if (!pairwise &&
307 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
a3836e02 308 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 309 } else
a3836e02 310 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 311
312 if (!key)
313 goto out;
314
315 memset(&params, 0, sizeof(params));
316
97359d12 317 params.cipher = key->conf.cipher;
62da92fb 318
97359d12
JB		 319 switch (key->conf.cipher) {
320 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 321 iv32 = key->u.tkip.tx.iv32;
322 iv16 = key->u.tkip.tx.iv16;
62da92fb 323
24487981
JB		 324 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
325 drv_get_tkip_seq(sdata->local,
326 key->conf.hw_key_idx,
327 &iv32, &iv16);
62da92fb
JB		 328
329 seq[0] = iv16 & 0xff;
330 seq[1] = (iv16 >> 8) & 0xff;
331 seq[2] = iv32 & 0xff;
332 seq[3] = (iv32 >> 8) & 0xff;
333 seq[4] = (iv32 >> 16) & 0xff;
334 seq[5] = (iv32 >> 24) & 0xff;
335 params.seq = seq;
336 params.seq_len = 6;
337 break;
97359d12 338 case WLAN_CIPHER_SUITE_CCMP:
aba83a0b
JB		 339 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
340 seq[0] = pn64;
341 seq[1] = pn64 >> 8;
342 seq[2] = pn64 >> 16;
343 seq[3] = pn64 >> 24;
344 seq[4] = pn64 >> 32;
345 seq[5] = pn64 >> 40;
62da92fb
JB		 346 params.seq = seq;
347 params.seq_len = 6;
348 break;
97359d12 349 case WLAN_CIPHER_SUITE_AES_CMAC:
75396ae6
JB		 350 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
351 seq[0] = pn64;
352 seq[1] = pn64 >> 8;
353 seq[2] = pn64 >> 16;
354 seq[3] = pn64 >> 24;
355 seq[4] = pn64 >> 32;
356 seq[5] = pn64 >> 40;
3cfcf6ac
JM		 357 params.seq = seq;
358 params.seq_len = 6;
359 break;
62da92fb
JB		 360 }
361
362 params.key = key->conf.key;
363 params.key_len = key->conf.keylen;
364
365 callback(cookie, &params);
366 err = 0;
367
368 out:
3b96766f 369 rcu_read_unlock();
62da92fb
JB		 370 return err;
371}
372
e8cbb4cb
JB		 373static int ieee80211_config_default_key(struct wiphy *wiphy,
374 struct net_device *dev,
dbd2fd65
JB		 375 u8 key_idx, bool uni,
376 bool multi)
e8cbb4cb 377{
ad0e2b5a 378 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 379
f7e0104c 380 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 381
382 return 0;
383}
384
3cfcf6ac
JM		 385static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
386 struct net_device *dev,
387 u8 key_idx)
388{
66c52421 389 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 390
3cfcf6ac
JM		 391 ieee80211_set_default_mgmt_key(sdata, key_idx);
392
3cfcf6ac
JM		 393 return 0;
394}
395
6b62bf32
TP		 396void sta_set_rate_info_tx(struct sta_info *sta,
397 const struct ieee80211_tx_rate *rate,
398 struct rate_info *rinfo)
399{
400 rinfo->flags = 0;
8bc83c24 401 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 402 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 403 rinfo->mcs = rate->idx;
404 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
405 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
406 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
407 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
408 } else {
409 struct ieee80211_supported_band *sband;
2103dec1
SW		 410 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
411 u16 brate;
412
8bc83c24
JB		 413 sband = sta->local->hw.wiphy->bands[
414 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 415 brate = sband->bitrates[rate->idx].bitrate;
416 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
8bc83c24 417 }
6b62bf32
TP		 418 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
419 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
8bc83c24
JB		 420 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
421 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
422 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
423 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
6b62bf32
TP		 424 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
425 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 426}
427
003e676a
S		 428void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
429{
430 rinfo->flags = 0;
431
432 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
433 rinfo->flags |= RATE_INFO_FLAGS_MCS;
434 rinfo->mcs = sta->last_rx_rate_idx;
435 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
436 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
437 rinfo->nss = sta->last_rx_rate_vht_nss;
438 rinfo->mcs = sta->last_rx_rate_idx;
439 } else {
440 struct ieee80211_supported_band *sband;
2103dec1
SW		 441 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
442 u16 brate;
003e676a
S		 443
444 sband = sta->local->hw.wiphy->bands[
445 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 446 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
447 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
003e676a
S		 448 }
449
450 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
451 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
452 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
453 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
454 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
455 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
456 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
457 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
458 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
459 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
460}
461
c5dd9c2b
LCC		 462static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
463{
d0709a65 464 struct ieee80211_sub_if_data *sdata = sta->sdata;
66572cfc 465 struct ieee80211_local *local = sdata->local;
ebe27c91 466 struct timespec uptime;
560d2682 467 u64 packets = 0;
ef0621e8 468 int i, ac;
c5dd9c2b 469
f5ea9120
JB		 470 sinfo->generation = sdata->local->sta_generation;
471
c5dd9c2b 472 sinfo->filled = STATION_INFO_INACTIVE_TIME |
560d2682
JB		 473 STATION_INFO_RX_BYTES64 |
474 STATION_INFO_TX_BYTES64 |
98c8a60a
JM		 475 STATION_INFO_RX_PACKETS |
476 STATION_INFO_TX_PACKETS |
b206b4ef
BR		 477 STATION_INFO_TX_RETRIES |
478 STATION_INFO_TX_FAILED |
5a5c731a 479 STATION_INFO_TX_BITRATE |
3af6334c 480 STATION_INFO_RX_BITRATE |
f4263c98 481 STATION_INFO_RX_DROP_MISC |
ebe27c91 482 STATION_INFO_BSS_PARAM |
7a724767 483 STATION_INFO_CONNECTED_TIME |
a85e1d55
PS		 484 STATION_INFO_STA_FLAGS |
485 STATION_INFO_BEACON_LOSS_COUNT;
ebe27c91
MSS		 486
487 do_posix_clock_monotonic_gettime(&uptime);
488 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
c5dd9c2b
LCC		 489
490 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
560d2682
JB		 491 sinfo->tx_bytes = 0;
492 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
493 sinfo->tx_bytes += sta->tx_bytes[ac];
494 packets += sta->tx_packets[ac];
495 }
496 sinfo->tx_packets = packets;
c5dd9c2b 497 sinfo->rx_bytes = sta->rx_bytes;
98c8a60a 498 sinfo->rx_packets = sta->rx_packets;
b206b4ef
BR		 499 sinfo->tx_retries = sta->tx_retry_count;
500 sinfo->tx_failed = sta->tx_retry_failed;
5a5c731a 501 sinfo->rx_dropped_misc = sta->rx_dropped;
a85e1d55 502 sinfo->beacon_loss_count = sta->beacon_loss_count;
c5dd9c2b 503
19deffbe
JL		 504 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
505 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
541a45a1 506 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
66572cfc
VG		 507 if (!local->ops->get_rssi ||
508 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
509 sinfo->signal = (s8)sta->last_signal;
541a45a1 510 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
420e7fab 511 }
ef0621e8
FF		 512 if (sta->chains) {
513 sinfo->filled |= STATION_INFO_CHAIN_SIGNAL |
514 STATION_INFO_CHAIN_SIGNAL_AVG;
515
516 sinfo->chains = sta->chains;
517 for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) {
518 sinfo->chain_signal[i] = sta->chain_signal_last[i];
519 sinfo->chain_signal_avg[i] =
520 (s8) -ewma_read(&sta->chain_signal_avg[i]);
521 }
522 }
420e7fab 523
6b62bf32 524 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
003e676a 525 sta_set_rate_info_rx(sta, &sinfo->rxrate);
420e7fab 526
902acc78 527 if (ieee80211_vif_is_mesh(&sdata->vif)) {
c5dd9c2b 528#ifdef CONFIG_MAC80211_MESH
c5dd9c2b
LCC		 529 sinfo->filled |= STATION_INFO_LLID |
530 STATION_INFO_PLID |
3f52b7e3
MP		 531 STATION_INFO_PLINK_STATE |
532 STATION_INFO_LOCAL_PM |
533 STATION_INFO_PEER_PM |
534 STATION_INFO_NONPEER_PM;
c5dd9c2b 535
6f101ef0
CYY		 536 sinfo->llid = sta->llid;
537 sinfo->plid = sta->plid;
c5dd9c2b 538 sinfo->plink_state = sta->plink_state;
d299a1f2
JC		 539 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
540 sinfo->filled |= STATION_INFO_T_OFFSET;
541 sinfo->t_offset = sta->t_offset;
542 }
3f52b7e3
MP		 543 sinfo->local_pm = sta->local_pm;
544 sinfo->peer_pm = sta->peer_pm;
545 sinfo->nonpeer_pm = sta->nonpeer_pm;
c5dd9c2b 546#endif
902acc78 547 }
f4263c98
PS		 548
549 sinfo->bss_param.flags = 0;
550 if (sdata->vif.bss_conf.use_cts_prot)
551 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
552 if (sdata->vif.bss_conf.use_short_preamble)
553 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
554 if (sdata->vif.bss_conf.use_short_slot)
555 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
556 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
557 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
7a724767
HS		 558
559 sinfo->sta_flags.set = 0;
560 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
561 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
562 BIT(NL80211_STA_FLAG_WME) |
563 BIT(NL80211_STA_FLAG_MFP) |
e4121562 564 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
d582cffb 565 BIT(NL80211_STA_FLAG_ASSOCIATED) |
e4121562 566 BIT(NL80211_STA_FLAG_TDLS_PEER);
7a724767
HS		 567 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
568 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
569 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
570 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
571 if (test_sta_flag(sta, WLAN_STA_WME))
572 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
573 if (test_sta_flag(sta, WLAN_STA_MFP))
574 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
575 if (test_sta_flag(sta, WLAN_STA_AUTH))
576 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
d582cffb
JB		 577 if (test_sta_flag(sta, WLAN_STA_ASSOC))
578 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
e4121562
HS		 579 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
580 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
c5dd9c2b
LCC		 581}
582
b1ab7925
BG		 583static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
584 "rx_packets", "rx_bytes", "wep_weak_iv_count",
585 "rx_duplicates", "rx_fragments", "rx_dropped",
586 "tx_packets", "tx_bytes", "tx_fragments",
587 "tx_filtered", "tx_retry_failed", "tx_retries",
3073a7c2
BG		 588 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
589 "channel", "noise", "ch_time", "ch_time_busy",
590 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
b1ab7925
BG		 591};
592#define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
593
594static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
595 struct net_device *dev,
596 int sset)
597{
e352114f
BG		 598 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
599 int rv = 0;
600
b1ab7925 601 if (sset == ETH_SS_STATS)
e352114f
BG		 602 rv += STA_STATS_LEN;
603
604 rv += drv_get_et_sset_count(sdata, sset);
b1ab7925 605
e352114f
BG		 606 if (rv == 0)
607 return -EOPNOTSUPP;
608 return rv;
b1ab7925
BG		 609}
610
611static void ieee80211_get_et_stats(struct wiphy *wiphy,
612 struct net_device *dev,
613 struct ethtool_stats *stats,
614 u64 *data)
615{
616 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a
JB		 617 struct ieee80211_chanctx_conf *chanctx_conf;
618 struct ieee80211_channel *channel;
b1ab7925
BG		 619 struct sta_info *sta;
620 struct ieee80211_local *local = sdata->local;
3073a7c2
BG		 621 struct station_info sinfo;
622 struct survey_info survey;
623 int i, q;
624#define STA_STATS_SURVEY_LEN 7
b1ab7925
BG		 625
626 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
627
628#define ADD_STA_STATS(sta) \
629 do { \
630 data[i++] += sta->rx_packets; \
631 data[i++] += sta->rx_bytes; \
632 data[i++] += sta->wep_weak_iv_count; \
633 data[i++] += sta->num_duplicates; \
634 data[i++] += sta->rx_fragments; \
635 data[i++] += sta->rx_dropped; \
636 \
560d2682
JB		 637 data[i++] += sinfo.tx_packets; \
638 data[i++] += sinfo.tx_bytes; \
b1ab7925
BG		 639 data[i++] += sta->tx_fragments; \
640 data[i++] += sta->tx_filtered_count; \
641 data[i++] += sta->tx_retry_failed; \
642 data[i++] += sta->tx_retry_count; \
643 data[i++] += sta->beacon_loss_count; \
644 } while (0)
645
646 /* For Managed stations, find the single station based on BSSID
647 * and use that. For interface types, iterate through all available
648 * stations and add stats for any station that is assigned to this
649 * network device.
650 */
651
66572cfc 652 mutex_lock(&local->sta_mtx);
b1ab7925
BG		 653
654 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
655 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
3073a7c2
BG		 656
657 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
658 goto do_survey;
659
560d2682
JB		 660 sinfo.filled = 0;
661 sta_set_sinfo(sta, &sinfo);
662
3073a7c2
BG		 663 i = 0;
664 ADD_STA_STATS(sta);
665
666 data[i++] = sta->sta_state;
667
3073a7c2 668
5204267d 669 if (sinfo.filled & STATION_INFO_TX_BITRATE)
3073a7c2
BG		 670 data[i] = 100000 *
671 cfg80211_calculate_bitrate(&sinfo.txrate);
672 i++;
5204267d 673 if (sinfo.filled & STATION_INFO_RX_BITRATE)
3073a7c2
BG		 674 data[i] = 100000 *
675 cfg80211_calculate_bitrate(&sinfo.rxrate);
676 i++;
677
5204267d 678 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
3073a7c2
BG		 679 data[i] = (u8)sinfo.signal_avg;
680 i++;
b1ab7925 681 } else {
66572cfc 682 list_for_each_entry(sta, &local->sta_list, list) {
b1ab7925
BG		 683 /* Make sure this station belongs to the proper dev */
684 if (sta->sdata->dev != dev)
685 continue;
686
e13bae4f
JB		 687 sinfo.filled = 0;
688 sta_set_sinfo(sta, &sinfo);
b1ab7925
BG		 689 i = 0;
690 ADD_STA_STATS(sta);
b1ab7925
BG		 691 }
692 }
693
3073a7c2
BG		 694do_survey:
695 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
696 /* Get survey stats for current channel */
55de908a 697 survey.filled = 0;
3073a7c2 698
55de908a
JB		 699 rcu_read_lock();
700 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
701 if (chanctx_conf)
4bf88530 702 channel = chanctx_conf->def.chan;
55de908a
JB		 703 else
704 channel = NULL;
705 rcu_read_unlock();
706
707 if (channel) {
708 q = 0;
709 do {
710 survey.filled = 0;
711 if (drv_get_survey(local, q, &survey) != 0) {
712 survey.filled = 0;
713 break;
714 }
715 q++;
716 } while (channel != survey.channel);
3073a7c2
BG		 717 }
718
719 if (survey.filled)
720 data[i++] = survey.channel->center_freq;
721 else
722 data[i++] = 0;
723 if (survey.filled & SURVEY_INFO_NOISE_DBM)
724 data[i++] = (u8)survey.noise;
725 else
726 data[i++] = -1LL;
727 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
728 data[i++] = survey.channel_time;
729 else
730 data[i++] = -1LL;
731 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
732 data[i++] = survey.channel_time_busy;
733 else
734 data[i++] = -1LL;
735 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
736 data[i++] = survey.channel_time_ext_busy;
737 else
738 data[i++] = -1LL;
739 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
740 data[i++] = survey.channel_time_rx;
741 else
742 data[i++] = -1LL;
743 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
744 data[i++] = survey.channel_time_tx;
745 else
746 data[i++] = -1LL;
747
66572cfc 748 mutex_unlock(&local->sta_mtx);
e352114f 749
3073a7c2
BG		 750 if (WARN_ON(i != STA_STATS_LEN))
751 return;
752
e352114f 753 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
b1ab7925
BG		 754}
755
756static void ieee80211_get_et_strings(struct wiphy *wiphy,
757 struct net_device *dev,
758 u32 sset, u8 *data)
759{
e352114f
BG		 760 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
761 int sz_sta_stats = 0;
762
b1ab7925 763 if (sset == ETH_SS_STATS) {
e352114f 764 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
bd500af2 765 memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats);
b1ab7925 766 }
e352114f 767 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
b1ab7925 768}
c5dd9c2b
LCC		 769
770static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
771 int idx, u8 *mac, struct station_info *sinfo)
772{
3b53fde8 773 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 774 struct ieee80211_local *local = sdata->local;
c5dd9c2b 775 struct sta_info *sta;
d0709a65
JB		 776 int ret = -ENOENT;
777
66572cfc 778 mutex_lock(&local->sta_mtx);
c5dd9c2b 779
3b53fde8 780 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 781 if (sta) {
782 ret = 0;
17741cdc 783 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 784 sta_set_sinfo(sta, sinfo);
785 }
c5dd9c2b 786
66572cfc 787 mutex_unlock(&local->sta_mtx);
c5dd9c2b 788
d0709a65 789 return ret;
c5dd9c2b
LCC		 790}
791
1289723e
HS		 792static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
793 int idx, struct survey_info *survey)
794{
795 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
796
1289723e
HS		 797 return drv_get_survey(local, idx, survey);
798}
799
7bbdd2d9 800static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
2ec600d6 801 u8 *mac, struct station_info *sinfo)
7bbdd2d9 802{
abe60632 803 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 804 struct ieee80211_local *local = sdata->local;
7bbdd2d9 805 struct sta_info *sta;
d0709a65 806 int ret = -ENOENT;
7bbdd2d9 807
66572cfc 808 mutex_lock(&local->sta_mtx);
7bbdd2d9 809
0e5ded5a 810 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 811 if (sta) {
812 ret = 0;
813 sta_set_sinfo(sta, sinfo);
814 }
815
66572cfc 816 mutex_unlock(&local->sta_mtx);
d0709a65
JB		 817
818 return ret;
7bbdd2d9
JB		 819}
820
55de908a 821static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
683b6d3b 822 struct cfg80211_chan_def *chandef)
3d9e6e12
JB		 823{
824 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a
JB		 825 struct ieee80211_sub_if_data *sdata;
826 int ret = 0;
3d9e6e12 827
4bf88530 828 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
55de908a 829 return 0;
3d9e6e12 830
34a3740d 831 mutex_lock(&local->mtx);
55de908a
JB		 832 mutex_lock(&local->iflist_mtx);
833 if (local->use_chanctx) {
834 sdata = rcu_dereference_protected(
835 local->monitor_sdata,
836 lockdep_is_held(&local->iflist_mtx));
837 if (sdata) {
838 ieee80211_vif_release_channel(sdata);
4bf88530 839 ret = ieee80211_vif_use_channel(sdata, chandef,
55de908a
JB		 840 IEEE80211_CHANCTX_EXCLUSIVE);
841 }
842 } else if (local->open_count == local->monitors) {
675a0b04 843 local->_oper_chandef = *chandef;
55de908a
JB		 844 ieee80211_hw_config(local, 0);
845 }
3d9e6e12 846
4bf88530
JB		 847 if (ret == 0)
848 local->monitor_chandef = *chandef;
55de908a 849 mutex_unlock(&local->iflist_mtx);
34a3740d 850 mutex_unlock(&local->mtx);
3d9e6e12 851
55de908a 852 return ret;
e8c9bd5b
JB		 853}
854
02945821 855static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
8860020e 856 const u8 *resp, size_t resp_len)
02945821 857{
aa7a0080 858 struct probe_resp *new, *old;
02945821
AN		 859
860 if (!resp || !resp_len)
aba4e6ff 861 return 1;
02945821 862
7ca133bc 863 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
02945821 864
aa7a0080 865 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
02945821
AN		 866 if (!new)
867 return -ENOMEM;
868
aa7a0080
ES		 869 new->len = resp_len;
870 memcpy(new->data, resp, resp_len);
02945821
AN		 871
872 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
aa7a0080
ES		 873 if (old)
874 kfree_rcu(old, rcu_head);
02945821
AN		 875
876 return 0;
877}
878
0ae07968
LC		 879static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
880 struct cfg80211_beacon_data *params)
5dfdaf58
JB		 881{
882 struct beacon_data *new, *old;
883 int new_head_len, new_tail_len;
8860020e
JB		 884 int size, err;
885 u32 changed = BSS_CHANGED_BEACON;
5dfdaf58 886
7ca133bc
SW		 887 old = sdata_dereference(sdata->u.ap.beacon, sdata);
888
5dfdaf58 889
5dfdaf58
JB		 890 /* Need to have a beacon head if we don't have one yet */
891 if (!params->head && !old)
8860020e 892 return -EINVAL;
5dfdaf58
JB		 893
894 /* new or old head? */
895 if (params->head)
896 new_head_len = params->head_len;
897 else
898 new_head_len = old->head_len;
899
900 /* new or old tail? */
901 if (params->tail || !old)
902 /* params->tail_len will be zero for !params->tail */
903 new_tail_len = params->tail_len;
904 else
905 new_tail_len = old->tail_len;
906
907 size = sizeof(*new) + new_head_len + new_tail_len;
908
909 new = kzalloc(size, GFP_KERNEL);
910 if (!new)
911 return -ENOMEM;
912
913 /* start filling the new info now */
914
5dfdaf58
JB		 915 /*
916 * pointers go into the block we allocated,
917 * memory is | beacon_data | head | tail |
918 */
919 new->head = ((u8 *) new) + sizeof(*new);
920 new->tail = new->head + new_head_len;
921 new->head_len = new_head_len;
922 new->tail_len = new_tail_len;
923
924 /* copy in head */
925 if (params->head)
926 memcpy(new->head, params->head, new_head_len);
927 else
928 memcpy(new->head, old->head, new_head_len);
929
930 /* copy in optional tail */
931 if (params->tail)
932 memcpy(new->tail, params->tail, new_tail_len);
933 else
934 if (old)
935 memcpy(new->tail, old->tail, new_tail_len);
936
02945821
AN		 937 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
938 params->probe_resp_len);
8860020e
JB		 939 if (err < 0)
940 return err;
941 if (err == 0)
02945821
AN		 942 changed |= BSS_CHANGED_AP_PROBE_RESP;
943
8860020e
JB		 944 rcu_assign_pointer(sdata->u.ap.beacon, new);
945
946 if (old)
947 kfree_rcu(old, rcu_head);
7827493b 948
8860020e 949 return changed;
5dfdaf58
JB		 950}
951
8860020e
JB		 952static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
953 struct cfg80211_ap_settings *params)
5dfdaf58 954{
8860020e 955 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
34a3740d 956 struct ieee80211_local *local = sdata->local;
5dfdaf58 957 struct beacon_data *old;
665c93a9 958 struct ieee80211_sub_if_data *vlan;
8860020e
JB		 959 u32 changed = BSS_CHANGED_BEACON_INT |
960 BSS_CHANGED_BEACON_ENABLED |
961 BSS_CHANGED_BEACON |
339afbf4
JB		 962 BSS_CHANGED_SSID |
963 BSS_CHANGED_P2P_PS;
8860020e 964 int err;
14db74bc 965
7ca133bc 966 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 967 if (old)
968 return -EALREADY;
969
04ecd257
JB		 970 /* TODO: make hostapd tell us what it wants */
971 sdata->smps_mode = IEEE80211_SMPS_OFF;
972 sdata->needed_rx_chains = sdata->local->rx_chains;
164eb02d 973 sdata->radar_required = params->radar_required;
04ecd257 974
34a3740d 975 mutex_lock(&local->mtx);
4bf88530 976 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 977 IEEE80211_CHANCTX_SHARED);
34a3740d 978 mutex_unlock(&local->mtx);
aa430da4
JB		 979 if (err)
980 return err;
1f4ac5a6 981 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
aa430da4 982
665c93a9
JB		 983 /*
984 * Apply control port protocol, this allows us to
985 * not encrypt dynamic WEP control frames.
986 */
987 sdata->control_port_protocol = params->crypto.control_port_ethertype;
988 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
2475b1cc
MS		 989 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
990 &params->crypto,
991 sdata->vif.type);
992
665c93a9
JB		 993 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
994 vlan->control_port_protocol =
995 params->crypto.control_port_ethertype;
996 vlan->control_port_no_encrypt =
997 params->crypto.control_port_no_encrypt;
2475b1cc
MS		 998 vlan->encrypt_headroom =
999 ieee80211_cs_headroom(sdata->local,
1000 &params->crypto,
1001 vlan->vif.type);
665c93a9
JB		 1002 }
1003
8860020e
JB		 1004 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
1005 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 1006 sdata->vif.bss_conf.enable_beacon = true;
8860020e
JB		 1007
1008 sdata->vif.bss_conf.ssid_len = params->ssid_len;
1009 if (params->ssid_len)
1010 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
1011 params->ssid_len);
1012 sdata->vif.bss_conf.hidden_ssid =
1013 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
1014
67baf663
JD		 1015 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
1016 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
1017 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
1018 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1019 if (params->p2p_opp_ps)
1020 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1021 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 1022
8860020e
JB		 1023 err = ieee80211_assign_beacon(sdata, &params->beacon);
1024 if (err < 0)
1025 return err;
1026 changed |= err;
1027
1041638f
JB		 1028 err = drv_start_ap(sdata->local, sdata);
1029 if (err) {
7ca133bc
SW		 1030 old = sdata_dereference(sdata->u.ap.beacon, sdata);
1031
1041638f
JB		 1032 if (old)
1033 kfree_rcu(old, rcu_head);
1034 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1035 return err;
1036 }
1037
057d5f4b 1038 ieee80211_recalc_dtim(local, sdata);
8860020e
JB		 1039 ieee80211_bss_info_change_notify(sdata, changed);
1040
3edaf3e6
JB		 1041 netif_carrier_on(dev);
1042 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1043 netif_carrier_on(vlan->dev);
1044
665c93a9 1045 return 0;
5dfdaf58
JB		 1046}
1047
8860020e
JB		 1048static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
1049 struct cfg80211_beacon_data *params)
5dfdaf58 1050{
14db74bc 1051 struct ieee80211_sub_if_data *sdata;
5dfdaf58 1052 struct beacon_data *old;
8860020e 1053 int err;
5dfdaf58 1054
14db74bc
JB		 1055 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1056
73da7d5b
SW		 1057 /* don't allow changing the beacon while CSA is in place - offset
1058 * of channel switch counter may change
1059 */
1060 if (sdata->vif.csa_active)
1061 return -EBUSY;
1062
7ca133bc 1063 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 1064 if (!old)
1065 return -ENOENT;
1066
8860020e
JB		 1067 err = ieee80211_assign_beacon(sdata, params);
1068 if (err < 0)
1069 return err;
1070 ieee80211_bss_info_change_notify(sdata, err);
1071 return 0;
5dfdaf58
JB		 1072}
1073
8860020e 1074static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 1075{
7b20b8e8
JB		 1076 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1077 struct ieee80211_sub_if_data *vlan;
1078 struct ieee80211_local *local = sdata->local;
1079 struct beacon_data *old_beacon;
1080 struct probe_resp *old_probe_resp;
d2859df5 1081 struct cfg80211_chan_def chandef;
14db74bc 1082
7ca133bc 1083 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 1084 if (!old_beacon)
5dfdaf58 1085 return -ENOENT;
7ca133bc 1086 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 1087
73da7d5b
SW		 1088 /* abort any running channel switch */
1089 sdata->vif.csa_active = false;
1f3b8a2b
SW		 1090 kfree(sdata->u.ap.next_beacon);
1091 sdata->u.ap.next_beacon = NULL;
1092
687da132 1093 cancel_work_sync(&sdata->u.ap.request_smps_work);
73da7d5b 1094
7b20b8e8 1095 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 1096 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1097 netif_carrier_off(vlan->dev);
1098 netif_carrier_off(dev);
1099
7b20b8e8 1100 /* remove beacon and probe response */
a9b3cd7f 1101 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 1102 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1103 kfree_rcu(old_beacon, rcu_head);
1104 if (old_probe_resp)
1105 kfree_rcu(old_probe_resp, rcu_head);
8860020e 1106
e716251d 1107 __sta_info_flush(sdata, true);
7907c7d3 1108 ieee80211_free_keys(sdata, true);
75de9113 1109
d6a83228 1110 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 1111 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 1112 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 1113 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 1114
a6b368f6 1115 if (sdata->wdev.cac_started) {
d2859df5 1116 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 1117 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 1118 cfg80211_cac_event(sdata->dev, &chandef,
1119 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 1120 GFP_KERNEL);
1121 }
1122
1041638f
JB		 1123 drv_stop_ap(sdata->local, sdata);
1124
7b20b8e8
JB		 1125 /* free all potentially still buffered bcast frames */
1126 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1127 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1128
1f4ac5a6 1129 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
34a3740d 1130 mutex_lock(&local->mtx);
55de908a 1131 ieee80211_vif_release_channel(sdata);
34a3740d 1132 mutex_unlock(&local->mtx);
55de908a 1133
2d0ddec5 1134 return 0;
5dfdaf58
JB		 1135}
1136
4fd6931e
JB		 1137/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1138struct iapp_layer2_update {
1139 u8 da[ETH_ALEN]; /* broadcast */
1140 u8 sa[ETH_ALEN]; /* STA addr */
1141 __be16 len; /* 6 */
1142 u8 dsap; /* 0 */
1143 u8 ssap; /* 0 */
1144 u8 control;
1145 u8 xid_info[3];
bc10502d 1146} __packed;
4fd6931e
JB		 1147
1148static void ieee80211_send_layer2_update(struct sta_info *sta)
1149{
1150 struct iapp_layer2_update *msg;
1151 struct sk_buff *skb;
1152
1153 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1154 * bridge devices */
1155
1156 skb = dev_alloc_skb(sizeof(*msg));
1157 if (!skb)
1158 return;
1159 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1160
1161 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1162 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1163
e83e6541 1164 eth_broadcast_addr(msg->da);
17741cdc 1165 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 1166 msg->len = htons(6);
1167 msg->dsap = 0;
1168 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1169 msg->control = 0xaf; /* XID response lsb.1111F101.
1170 * F=0 (no poll command; unsolicited frame) */
1171 msg->xid_info[0] = 0x81; /* XID format identifier */
1172 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1173 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1174
d0709a65
JB		 1175 skb->dev = sta->sdata->dev;
1176 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 1177 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 1178 netif_rx_ni(skb);
4fd6931e
JB		 1179}
1180
d582cffb
JB		 1181static int sta_apply_auth_flags(struct ieee80211_local *local,
1182 struct sta_info *sta,
1183 u32 mask, u32 set)
1184{
1185 int ret;
1186
1187 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1188 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1189 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1190 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1191 if (ret)
1192 return ret;
1193 }
1194
1195 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1196 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1197 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
1198 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1199 if (ret)
1200 return ret;
1201 }
1202
1203 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1204 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1205 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1206 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1207 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1208 else
1209 ret = 0;
1210 if (ret)
1211 return ret;
1212 }
1213
1214 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1215 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1216 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1217 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1218 if (ret)
1219 return ret;
1220 }
1221
1222 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1223 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1224 test_sta_flag(sta, WLAN_STA_AUTH)) {
1225 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1226 if (ret)
1227 return ret;
1228 }
1229
1230 return 0;
1231}
1232
d9a7ddb0
JB		 1233static int sta_apply_parameters(struct ieee80211_local *local,
1234 struct sta_info *sta,
1235 struct station_parameters *params)
4fd6931e 1236{
d9a7ddb0 1237 int ret = 0;
8318d78a 1238 struct ieee80211_supported_band *sband;
d0709a65 1239 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 1240 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1241 u32 mask, set;
4fd6931e 1242
55de908a 1243 sband = local->hw.wiphy->bands[band];
ae5eb026 1244
eccb8e8f
JB		 1245 mask = params->sta_flags_mask;
1246 set = params->sta_flags_set;
73651ee6 1247
d582cffb
JB		 1248 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1249 /*
1250 * In mesh mode, ASSOCIATED isn't part of the nl80211
1251 * API but must follow AUTHENTICATED for driver state.
1252 */
1253 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1254 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1255 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1256 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1257 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1258 /*
1259 * TDLS -- everything follows authorized, but
1260 * only becoming authorized is possible, not
1261 * going back
1262 */
1263 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1264 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1265 BIT(NL80211_STA_FLAG_ASSOCIATED);
1266 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1267 BIT(NL80211_STA_FLAG_ASSOCIATED);
1268 }
eccb8e8f 1269 }
4fd6931e 1270
d582cffb
JB		 1271 ret = sta_apply_auth_flags(local, sta, mask, set);
1272 if (ret)
1273 return ret;
d9a7ddb0 1274
eccb8e8f 1275 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1276 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1277 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1278 else
1279 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1280 }
4fd6931e 1281
eccb8e8f 1282 if (mask & BIT(NL80211_STA_FLAG_WME)) {
39df600a 1283 if (set & BIT(NL80211_STA_FLAG_WME)) {
c2c98fde 1284 set_sta_flag(sta, WLAN_STA_WME);
39df600a 1285 sta->sta.wme = true;
c2c98fde
JB		 1286 } else {
1287 clear_sta_flag(sta, WLAN_STA_WME);
1288 sta->sta.wme = false;
39df600a 1289 }
eccb8e8f 1290 }
5394af4d 1291
eccb8e8f 1292 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1293 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1294 set_sta_flag(sta, WLAN_STA_MFP);
1295 else
1296 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1297 }
b39c48fa 1298
07ba55d7 1299 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1300 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1301 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1302 else
1303 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1304 }
4fd6931e 1305
3b9ce80c
JB		 1306 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1307 sta->sta.uapsd_queues = params->uapsd_queues;
1308 sta->sta.max_sp = params->max_sp;
1309 }
9533b4ac 1310
51b50fbe
JB		 1311 /*
1312 * cfg80211 validates this (1-2007) and allows setting the AID
1313 * only when creating a new station entry
1314 */
1315 if (params->aid)
1316 sta->sta.aid = params->aid;
1317
73651ee6 1318 /*
ba23d206
JB		 1319 * Some of the following updates would be racy if called on an
1320 * existing station, via ieee80211_change_station(). However,
1321 * all such changes are rejected by cfg80211 except for updates
1322 * changing the supported rates on an existing but not yet used
1323 * TDLS peer.
73651ee6
JB		 1324 */
1325
4fd6931e
JB		 1326 if (params->listen_interval >= 0)
1327 sta->listen_interval = params->listen_interval;
1328
1329 if (params->supported_rates) {
2103dec1
SW		 1330 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1331 sband, params->supported_rates,
1332 params->supported_rates_len,
1333 &sta->sta.supp_rates[band]);
4fd6931e 1334 }
c5dd9c2b 1335
d9fe60de 1336 if (params->ht_capa)
ef96a842 1337 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1338 params->ht_capa, sta);
36aedc90 1339
f461be3e
MP		 1340 if (params->vht_capa)
1341 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1342 params->vht_capa, sta);
f461be3e 1343
9c3990aa 1344 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1345#ifdef CONFIG_MAC80211_MESH
39886b61 1346 u32 changed = 0;
77ee7c89
JB		 1347
1348 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1349 switch (params->plink_state) {
57cf8043 1350 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1351 if (sta->plink_state != NL80211_PLINK_ESTAB)
1352 changed = mesh_plink_inc_estab_count(
1353 sdata);
1354 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1355
1356 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1357 changed |= ieee80211_mps_set_sta_local_pm(sta,
1358 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1359 break;
1360 case NL80211_PLINK_LISTEN:
57cf8043 1361 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1362 case NL80211_PLINK_OPN_SNT:
1363 case NL80211_PLINK_OPN_RCVD:
1364 case NL80211_PLINK_CNF_RCVD:
1365 case NL80211_PLINK_HOLDING:
1366 if (sta->plink_state == NL80211_PLINK_ESTAB)
1367 changed = mesh_plink_dec_estab_count(
1368 sdata);
9c3990aa 1369 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1370
1371 ieee80211_mps_sta_status_update(sta);
446075d7
MP		 1372 changed |= ieee80211_mps_set_sta_local_pm(sta,
1373 NL80211_MESH_POWER_UNKNOWN);
9c3990aa
JC		 1374 break;
1375 default:
1376 /* nothing */
1377 break;
1378 }
77ee7c89
JB		 1379 }
1380
1381 switch (params->plink_action) {
1382 case NL80211_PLINK_ACTION_NO_ACTION:
1383 /* nothing */
1384 break;
1385 case NL80211_PLINK_ACTION_OPEN:
1386 changed |= mesh_plink_open(sta);
1387 break;
1388 case NL80211_PLINK_ACTION_BLOCK:
1389 changed |= mesh_plink_block(sta);
1390 break;
1617bab8 1391 }
3f52b7e3
MP		 1392
1393 if (params->local_pm)
39886b61
TP		 1394 changed |=
1395 ieee80211_mps_set_sta_local_pm(sta,
1396 params->local_pm);
6c751ef8 1397 ieee80211_mbss_info_change_notify(sdata, changed);
4daf50f2 1398#endif
902acc78 1399 }
d9a7ddb0
JB		 1400
1401 return 0;
4fd6931e
JB		 1402}
1403
1404static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1405 u8 *mac, struct station_parameters *params)
1406{
14db74bc 1407 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1408 struct sta_info *sta;
1409 struct ieee80211_sub_if_data *sdata;
73651ee6 1410 int err;
b8d476c8 1411 int layer2_update;
4fd6931e 1412
4fd6931e
JB		 1413 if (params->vlan) {
1414 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1415
05c914fe
JB		 1416 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1417 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1418 return -EINVAL;
1419 } else
1420 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1421
b203ca39 1422 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1423 return -EINVAL;
1424
1425 if (is_multicast_ether_addr(mac))
1426 return -EINVAL;
1427
1428 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1429 if (!sta)
1430 return -ENOMEM;
4fd6931e 1431
d582cffb
JB		 1432 /*
1433 * defaults -- if userspace wants something else we'll
1434 * change it accordingly in sta_apply_parameters()
1435 */
77ee7c89
JB		 1436 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1437 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1438 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1439 }
4fd6931e 1440
d9a7ddb0
JB		 1441 err = sta_apply_parameters(local, sta, params);
1442 if (err) {
1443 sta_info_free(local, sta);
1444 return err;
1445 }
4fd6931e 1446
d64cf63e 1447 /*
77ee7c89
JB		 1448 * for TDLS, rate control should be initialized only when
1449 * rates are known and station is marked authorized
d64cf63e
AN		 1450 */
1451 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1452 rate_control_rate_init(sta);
4fd6931e 1453
b8d476c8
JM		 1454 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1455 sdata->vif.type == NL80211_IFTYPE_AP;
1456
34e89507 1457 err = sta_info_insert_rcu(sta);
73651ee6 1458 if (err) {
73651ee6
JB		 1459 rcu_read_unlock();
1460 return err;
1461 }
1462
b8d476c8 1463 if (layer2_update)
73651ee6
JB		 1464 ieee80211_send_layer2_update(sta);
1465
1466 rcu_read_unlock();
1467
4fd6931e
JB		 1468 return 0;
1469}
1470
1471static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1472 u8 *mac)
1473{
14db74bc 1474 struct ieee80211_sub_if_data *sdata;
4fd6931e 1475
14db74bc
JB		 1476 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1477
34e89507
JB		 1478 if (mac)
1479 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 1480
b998e8bb 1481 sta_info_flush(sdata);
4fd6931e
JB		 1482 return 0;
1483}
1484
1485static int ieee80211_change_station(struct wiphy *wiphy,
77ee7c89 1486 struct net_device *dev, u8 *mac,
4fd6931e
JB		 1487 struct station_parameters *params)
1488{
abe60632 1489 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1490 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1491 struct sta_info *sta;
1492 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1493 enum cfg80211_station_type statype;
35b88623 1494 int err;
4fd6931e 1495
87be1e1e 1496 mutex_lock(&local->sta_mtx);
98dd6a57 1497
0e5ded5a 1498 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1499 if (!sta) {
77ee7c89
JB		 1500 err = -ENOENT;
1501 goto out_err;
98dd6a57 1502 }
4fd6931e 1503
77ee7c89
JB		 1504 switch (sdata->vif.type) {
1505 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1506 if (sdata->u.mesh.user_mpm)
eef941e6 1507 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1508 else
eef941e6 1509 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1510 break;
1511 case NL80211_IFTYPE_ADHOC:
1512 statype = CFG80211_STA_IBSS;
1513 break;
1514 case NL80211_IFTYPE_STATION:
1515 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1516 statype = CFG80211_STA_AP_STA;
1517 break;
1518 }
1519 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1520 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1521 else
1522 statype = CFG80211_STA_TDLS_PEER_SETUP;
1523 break;
1524 case NL80211_IFTYPE_AP:
1525 case NL80211_IFTYPE_AP_VLAN:
1526 statype = CFG80211_STA_AP_CLIENT;
1527 break;
1528 default:
1529 err = -EOPNOTSUPP;
1530 goto out_err;
bdd90d5e
JB		 1531 }
1532
77ee7c89
JB		 1533 err = cfg80211_check_station_change(wiphy, params, statype);
1534 if (err)
1535 goto out_err;
1536
d0709a65 1537 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1538 bool prev_4addr = false;
1539 bool new_4addr = false;
1540
4fd6931e
JB		 1541 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1542
9bc383de 1543 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1544 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1545 err = -EBUSY;
1546 goto out_err;
3305443c 1547 }
f14543ee 1548
cf778b00 1549 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1550 new_4addr = true;
1551 }
1552
1553 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1554 sta->sdata->u.vlan.sta) {
1555 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1556 prev_4addr = true;
f14543ee
FF		 1557 }
1558
14db74bc 1559 sta->sdata = vlansdata;
7e3ed02c
FF		 1560
1561 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1562 prev_4addr != new_4addr) {
1563 if (new_4addr)
1564 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1565 else
1566 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1567 }
1568
4fd6931e
JB		 1569 ieee80211_send_layer2_update(sta);
1570 }
1571
35b88623 1572 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1573 if (err)
1574 goto out_err;
4fd6931e 1575
77ee7c89
JB		 1576 /* When peer becomes authorized, init rate control as well */
1577 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1578 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
d64cf63e
AN		 1579 rate_control_rate_init(sta);
1580
87be1e1e 1581 mutex_unlock(&local->sta_mtx);
98dd6a57 1582
687da132
EG		 1583 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1584 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1585 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1586 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1587 sta_info_tx_streams(sta) != 1) {
1588 ht_dbg(sta->sdata,
1589 "%pM just authorized and MIMO capable - update SMPS\n",
1590 sta->sta.addr);
1591 ieee80211_send_smps_action(sta->sdata,
1592 sta->sdata->bss->req_smps,
1593 sta->sta.addr,
1594 sta->sdata->vif.bss_conf.bssid);
1595 }
1596
808118cb 1597 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1598 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1599 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1600 ieee80211_recalc_ps_vif(sdata);
1601 }
77ee7c89 1602
4fd6931e 1603 return 0;
77ee7c89
JB		 1604out_err:
1605 mutex_unlock(&local->sta_mtx);
1606 return err;
4fd6931e
JB		 1607}
1608
c5dd9c2b
LCC		 1609#ifdef CONFIG_MAC80211_MESH
1610static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1611 u8 *dst, u8 *next_hop)
1612{
14db74bc 1613 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1614 struct mesh_path *mpath;
1615 struct sta_info *sta;
c5dd9c2b 1616
14db74bc
JB		 1617 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1618
d0709a65 1619 rcu_read_lock();
abe60632 1620 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1621 if (!sta) {
1622 rcu_read_unlock();
c5dd9c2b 1623 return -ENOENT;
d0709a65 1624 }
c5dd9c2b 1625
ae76eef0
BC		 1626 mpath = mesh_path_add(sdata, dst);
1627 if (IS_ERR(mpath)) {
d0709a65 1628 rcu_read_unlock();
ae76eef0 1629 return PTR_ERR(mpath);
d0709a65 1630 }
c5dd9c2b 1631
c5dd9c2b 1632 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1633
c5dd9c2b
LCC		 1634 rcu_read_unlock();
1635 return 0;
1636}
1637
1638static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
bf7cd94d 1639 u8 *dst)
c5dd9c2b 1640{
f698d856
JBG		 1641 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1642
c5dd9c2b 1643 if (dst)
bf7cd94d 1644 return mesh_path_del(sdata, dst);
c5dd9c2b 1645
ece1a2e7 1646 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1647 return 0;
1648}
1649
1650static int ieee80211_change_mpath(struct wiphy *wiphy,
1651 struct net_device *dev,
1652 u8 *dst, u8 *next_hop)
1653{
14db74bc 1654 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1655 struct mesh_path *mpath;
1656 struct sta_info *sta;
1657
14db74bc
JB		 1658 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1659
d0709a65
JB		 1660 rcu_read_lock();
1661
abe60632 1662 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1663 if (!sta) {
1664 rcu_read_unlock();
c5dd9c2b 1665 return -ENOENT;
d0709a65 1666 }
c5dd9c2b 1667
bf7cd94d 1668 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1669 if (!mpath) {
1670 rcu_read_unlock();
c5dd9c2b
LCC		 1671 return -ENOENT;
1672 }
1673
1674 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1675
c5dd9c2b
LCC		 1676 rcu_read_unlock();
1677 return 0;
1678}
1679
1680static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1681 struct mpath_info *pinfo)
1682{
a3836e02
JB		 1683 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1684
1685 if (next_hop_sta)
1686 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1687 else
1688 memset(next_hop, 0, ETH_ALEN);
1689
7ce8c7a3
LAYS		 1690 memset(pinfo, 0, sizeof(*pinfo));
1691
f5ea9120
JB		 1692 pinfo->generation = mesh_paths_generation;
1693
c5dd9c2b 1694 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1695 MPATH_INFO_SN |
c5dd9c2b
LCC		 1696 MPATH_INFO_METRIC |
1697 MPATH_INFO_EXPTIME |
1698 MPATH_INFO_DISCOVERY_TIMEOUT |
1699 MPATH_INFO_DISCOVERY_RETRIES |
1700 MPATH_INFO_FLAGS;
1701
1702 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1703 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1704 pinfo->metric = mpath->metric;
1705 if (time_before(jiffies, mpath->exp_time))
1706 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1707 pinfo->discovery_timeout =
1708 jiffies_to_msecs(mpath->discovery_timeout);
1709 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1710 if (mpath->flags & MESH_PATH_ACTIVE)
1711 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1712 if (mpath->flags & MESH_PATH_RESOLVING)
1713 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1714 if (mpath->flags & MESH_PATH_SN_VALID)
1715 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1716 if (mpath->flags & MESH_PATH_FIXED)
1717 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1718 if (mpath->flags & MESH_PATH_RESOLVED)
1719 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1720}
1721
1722static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1723 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1724
1725{
14db74bc 1726 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1727 struct mesh_path *mpath;
1728
14db74bc
JB		 1729 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1730
c5dd9c2b 1731 rcu_read_lock();
bf7cd94d 1732 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1733 if (!mpath) {
1734 rcu_read_unlock();
1735 return -ENOENT;
1736 }
1737 memcpy(dst, mpath->dst, ETH_ALEN);
1738 mpath_set_pinfo(mpath, next_hop, pinfo);
1739 rcu_read_unlock();
1740 return 0;
1741}
1742
1743static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1744 int idx, u8 *dst, u8 *next_hop,
1745 struct mpath_info *pinfo)
1746{
14db74bc 1747 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1748 struct mesh_path *mpath;
1749
14db74bc
JB		 1750 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1751
c5dd9c2b 1752 rcu_read_lock();
bf7cd94d 1753 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1754 if (!mpath) {
1755 rcu_read_unlock();
1756 return -ENOENT;
1757 }
1758 memcpy(dst, mpath->dst, ETH_ALEN);
1759 mpath_set_pinfo(mpath, next_hop, pinfo);
1760 rcu_read_unlock();
1761 return 0;
1762}
93da9cc1 1763
24bdd9f4 1764static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1765 struct net_device *dev,
1766 struct mesh_config *conf)
1767{
1768 struct ieee80211_sub_if_data *sdata;
1769 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1770
93da9cc1 1771 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1772 return 0;
1773}
1774
1775static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1776{
1777 return (mask >> (parm-1)) & 0x1;
1778}
1779
c80d545d
JC		 1780static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1781 const struct mesh_setup *setup)
1782{
1783 u8 *new_ie;
1784 const u8 *old_ie;
4bb62344
CYY		 1785 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1786 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1787
581a8b0f 1788 /* allocate information elements */
c80d545d 1789 new_ie = NULL;
581a8b0f 1790 old_ie = ifmsh->ie;
c80d545d 1791
581a8b0f
JC		 1792 if (setup->ie_len) {
1793 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1794 GFP_KERNEL);
1795 if (!new_ie)
1796 return -ENOMEM;
1797 }
581a8b0f
JC		 1798 ifmsh->ie_len = setup->ie_len;
1799 ifmsh->ie = new_ie;
1800 kfree(old_ie);
c80d545d
JC		 1801
1802 /* now copy the rest of the setup parameters */
1803 ifmsh->mesh_id_len = setup->mesh_id_len;
1804 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1805 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1806 ifmsh->mesh_pp_id = setup->path_sel_proto;
1807 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1808 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1809 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1810 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1811 if (setup->is_authenticated)
1812 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1813 if (setup->is_secure)
1814 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1815
4bb62344
CYY		 1816 /* mcast rate setting in Mesh Node */
1817 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1818 sizeof(setup->mcast_rate));
ffb3cf30 1819 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1820
9bdbf04d
MP		 1821 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1822 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1823
c80d545d
JC		 1824 return 0;
1825}
1826
24bdd9f4 1827static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1828 struct net_device *dev, u32 mask,
1829 const struct mesh_config *nconf)
93da9cc1 1830{
1831 struct mesh_config *conf;
1832 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1833 struct ieee80211_if_mesh *ifmsh;
1834
93da9cc1 1835 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1836 ifmsh = &sdata->u.mesh;
93da9cc1 1837
93da9cc1 1838 /* Set the config options which we are interested in setting */
1839 conf = &(sdata->u.mesh.mshcfg);
1840 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1841 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1842 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1843 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1844 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1845 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1846 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1847 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1848 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1849 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1850 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1851 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1852 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1853 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1854 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1855 if (ifmsh->user_mpm)
1856 return -EBUSY;
93da9cc1 1857 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1858 }
d299a1f2
JC		 1859 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1860 conf->dot11MeshNbrOffsetMaxNeighbor =
1861 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1862 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1863 conf->dot11MeshHWMPmaxPREQretries =
1864 nconf->dot11MeshHWMPmaxPREQretries;
1865 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1866 conf->path_refresh_time = nconf->path_refresh_time;
1867 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1868 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1869 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1870 conf->dot11MeshHWMPactivePathTimeout =
1871 nconf->dot11MeshHWMPactivePathTimeout;
1872 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1873 conf->dot11MeshHWMPpreqMinInterval =
1874 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1875 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1876 conf->dot11MeshHWMPperrMinInterval =
1877 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1878 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1879 mask))
1880 conf->dot11MeshHWMPnetDiameterTraversalTime =
1881 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1882 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1883 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1884 ieee80211_mesh_root_setup(ifmsh);
1885 }
16dd7267 1886 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1887 /* our current gate announcement implementation rides on root
1888 * announcements, so require this ifmsh to also be a root node
1889 * */
1890 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1891 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1892 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1893 ieee80211_mesh_root_setup(ifmsh);
1894 }
16dd7267
JC		 1895 conf->dot11MeshGateAnnouncementProtocol =
1896 nconf->dot11MeshGateAnnouncementProtocol;
1897 }
a4f606ea 1898 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1899 conf->dot11MeshHWMPRannInterval =
1900 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1901 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1902 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1903 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1904 /* our RSSI threshold implementation is supported only for
1905 * devices that report signal in dBm.
1906 */
1907 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1908 return -ENOTSUPP;
1909 conf->rssi_threshold = nconf->rssi_threshold;
1910 }
70c33eaa
AN		 1911 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1912 conf->ht_opmode = nconf->ht_opmode;
1913 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1914 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1915 }
ac1073a6
CYY		 1916 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1917 conf->dot11MeshHWMPactivePathToRootTimeout =
1918 nconf->dot11MeshHWMPactivePathToRootTimeout;
1919 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1920 conf->dot11MeshHWMProotInterval =
1921 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1922 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1923 conf->dot11MeshHWMPconfirmationInterval =
1924 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1925 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1926 conf->power_mode = nconf->power_mode;
1927 ieee80211_mps_local_status_update(sdata);
1928 }
2b5e1967 1929 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1930 conf->dot11MeshAwakeWindowDuration =
1931 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1932 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1933 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1934 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1935 return 0;
1936}
1937
29cbe68c
JB		 1938static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1939 const struct mesh_config *conf,
1940 const struct mesh_setup *setup)
1941{
1942 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1943 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1944 int err;
29cbe68c 1945
c80d545d
JC		 1946 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1947 err = copy_mesh_setup(ifmsh, setup);
1948 if (err)
1949 return err;
cc1d2806 1950
04ecd257
JB		 1951 /* can mesh use other SMPS modes? */
1952 sdata->smps_mode = IEEE80211_SMPS_OFF;
1953 sdata->needed_rx_chains = sdata->local->rx_chains;
1954
34a3740d 1955 mutex_lock(&sdata->local->mtx);
4bf88530 1956 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1957 IEEE80211_CHANCTX_SHARED);
34a3740d 1958 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1959 if (err)
1960 return err;
1961
2b5e1967 1962 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1963}
1964
1965static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1966{
1967 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1968
1969 ieee80211_stop_mesh(sdata);
34a3740d 1970 mutex_lock(&sdata->local->mtx);
55de908a 1971 ieee80211_vif_release_channel(sdata);
34a3740d 1972 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1973
1974 return 0;
1975}
c5dd9c2b
LCC		 1976#endif
1977
9f1ba906
JM		 1978static int ieee80211_change_bss(struct wiphy *wiphy,
1979 struct net_device *dev,
1980 struct bss_parameters *params)
1981{
55de908a
JB		 1982 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1983 enum ieee80211_band band;
9f1ba906
JM		 1984 u32 changed = 0;
1985
7ca133bc 1986 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1987 return -ENOENT;
1988
1989 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1990
9f1ba906 1991 if (params->use_cts_prot >= 0) {
bda3933a 1992 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1993 changed |= BSS_CHANGED_ERP_CTS_PROT;
1994 }
1995 if (params->use_short_preamble >= 0) {
bda3933a 1996 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1997 params->use_short_preamble;
1998 changed |= BSS_CHANGED_ERP_PREAMBLE;
1999 }
43d35343
FF		 2000
2001 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 2002 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 2003 sdata->vif.bss_conf.use_short_slot = true;
2004 changed |= BSS_CHANGED_ERP_SLOT;
2005 }
2006
9f1ba906 2007 if (params->use_short_slot_time >= 0) {
bda3933a 2008 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 2009 params->use_short_slot_time;
2010 changed |= BSS_CHANGED_ERP_SLOT;
2011 }
2012
90c97a04 2013 if (params->basic_rates) {
2103dec1
SW		 2014 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
2015 wiphy->bands[band],
2016 params->basic_rates,
2017 params->basic_rates_len,
2018 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 2019 changed |= BSS_CHANGED_BASIC_RATES;
2020 }
2021
7b7b5e56
FF		 2022 if (params->ap_isolate >= 0) {
2023 if (params->ap_isolate)
2024 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2025 else
2026 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
2027 }
2028
80d7e403
HS		 2029 if (params->ht_opmode >= 0) {
2030 sdata->vif.bss_conf.ht_operation_mode =
2031 (u16) params->ht_opmode;
2032 changed |= BSS_CHANGED_HT;
2033 }
2034
339afbf4 2035 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 2036 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2037 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
2038 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2039 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 2040 changed |= BSS_CHANGED_P2P_PS;
2041 }
2042
67baf663
JD		 2043 if (params->p2p_opp_ps > 0) {
2044 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
2045 IEEE80211_P2P_OPPPS_ENABLE_BIT;
2046 changed |= BSS_CHANGED_P2P_PS;
2047 } else if (params->p2p_opp_ps == 0) {
2048 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
2049 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 2050 changed |= BSS_CHANGED_P2P_PS;
2051 }
2052
9f1ba906
JM		 2053 ieee80211_bss_info_change_notify(sdata, changed);
2054
2055 return 0;
2056}
2057
31888487 2058static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 2059 struct net_device *dev,
31888487
JM		 2060 struct ieee80211_txq_params *params)
2061{
2062 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 2063 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 2064 struct ieee80211_tx_queue_params p;
2065
2066 if (!local->ops->conf_tx)
2067 return -EOPNOTSUPP;
2068
54bcbc69
JB		 2069 if (local->hw.queues < IEEE80211_NUM_ACS)
2070 return -EOPNOTSUPP;
2071
31888487
JM		 2072 memset(&p, 0, sizeof(p));
2073 p.aifs = params->aifs;
2074 p.cw_max = params->cwmax;
2075 p.cw_min = params->cwmin;
2076 p.txop = params->txop;
ab13315a
KV		 2077
2078 /*
2079 * Setting tx queue params disables u-apsd because it's only
2080 * called in master mode.
2081 */
2082 p.uapsd = false;
2083
a3304b0a
JB		 2084 sdata->tx_conf[params->ac] = p;
2085 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 2086 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 2087 "failed to set TX queue parameters for AC %d\n",
2088 params->ac);
31888487
JM		 2089 return -EINVAL;
2090 }
2091
7d25745d
JB		 2092 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2093
31888487
JM		 2094 return 0;
2095}
2096
665af4fc 2097#ifdef CONFIG_PM
ff1b6e69
JB		 2098static int ieee80211_suspend(struct wiphy *wiphy,
2099 struct cfg80211_wowlan *wowlan)
665af4fc 2100{
eecc4800 2101 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 2102}
2103
2104static int ieee80211_resume(struct wiphy *wiphy)
2105{
2106 return __ieee80211_resume(wiphy_priv(wiphy));
2107}
2108#else
2109#define ieee80211_suspend NULL
2110#define ieee80211_resume NULL
2111#endif
2112
2a519311 2113static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 2114 struct cfg80211_scan_request *req)
2115{
fd014284
JB		 2116 struct ieee80211_sub_if_data *sdata;
2117
2118 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 2119
2ca27bcf
JB		 2120 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2121 case NL80211_IFTYPE_STATION:
2122 case NL80211_IFTYPE_ADHOC:
2123 case NL80211_IFTYPE_MESH_POINT:
2124 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 2125 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 2126 break;
2127 case NL80211_IFTYPE_P2P_GO:
2128 if (sdata->local->ops->hw_scan)
2129 break;
e9d7732e
JB		 2130 /*
2131 * FIXME: implement NoA while scanning in software,
2132 * for now fall through to allow scanning only when
2133 * beaconing hasn't been configured yet
2134 */
2ca27bcf 2135 case NL80211_IFTYPE_AP:
5c95b940
AQ		 2136 /*
2137 * If the scan has been forced (and the driver supports
2138 * forcing), don't care about being beaconing already.
2139 * This will create problems to the attached stations (e.g. all
2140 * the frames sent while scanning on other channel will be
2141 * lost)
2142 */
2143 if (sdata->u.ap.beacon &&
2144 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2145 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2146 return -EOPNOTSUPP;
2147 break;
2148 default:
2149 return -EOPNOTSUPP;
2150 }
2a519311
JB		 2151
2152 return ieee80211_request_scan(sdata, req);
2153}
2154
79f460ca
LC		 2155static int
2156ieee80211_sched_scan_start(struct wiphy *wiphy,
2157 struct net_device *dev,
2158 struct cfg80211_sched_scan_request *req)
2159{
2160 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2161
2162 if (!sdata->local->ops->sched_scan_start)
2163 return -EOPNOTSUPP;
2164
2165 return ieee80211_request_sched_scan_start(sdata, req);
2166}
2167
2168static int
85a9994a 2169ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 2170{
2171 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2172
2173 if (!sdata->local->ops->sched_scan_stop)
2174 return -EOPNOTSUPP;
2175
85a9994a 2176 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 2177}
2178
636a5d36
JM		 2179static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2180 struct cfg80211_auth_request *req)
2181{
77fdaa12 2182 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2183}
2184
2185static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2186 struct cfg80211_assoc_request *req)
2187{
77fdaa12 2188 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2189}
2190
2191static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2192 struct cfg80211_deauth_request *req)
636a5d36 2193{
63c9c5e7 2194 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2195}
2196
2197static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2198 struct cfg80211_disassoc_request *req)
636a5d36 2199{
63c9c5e7 2200 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2201}
2202
af8cdcd8
JB		 2203static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2204 struct cfg80211_ibss_params *params)
2205{
55de908a 2206 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2207}
2208
2209static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2210{
55de908a 2211 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2212}
2213
391e53e3
AQ		 2214static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2215 int rate[IEEE80211_NUM_BANDS])
2216{
2217 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2218
9887dbf5
CD		 2219 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2220 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 2221
2222 return 0;
2223}
2224
b9a5f8ca
JM		 2225static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2226{
2227 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2228 int err;
b9a5f8ca 2229
f23a4780
AN		 2230 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2231 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2232
2233 if (err)
2234 return err;
2235 }
2236
310bc676
LT		 2237 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2238 err = drv_set_coverage_class(local, wiphy->coverage_class);
2239
2240 if (err)
2241 return err;
2242 }
2243
b9a5f8ca 2244 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2245 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2246
24487981
JB		 2247 if (err)
2248 return err;
b9a5f8ca
JM		 2249 }
2250
8bc83c24
JB		 2251 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2252 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2253 return -EINVAL;
b9a5f8ca 2254 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2255 }
2256 if (changed & WIPHY_PARAM_RETRY_LONG) {
2257 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2258 return -EINVAL;
b9a5f8ca 2259 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2260 }
b9a5f8ca
JM		 2261 if (changed &
2262 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2263 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2264
2265 return 0;
2266}
2267
7643a2c3 2268static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2269 struct wireless_dev *wdev,
fa61cf70 2270 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2271{
2272 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2273 struct ieee80211_sub_if_data *sdata;
7643a2c3 2274
1ea6f9c0
JB		 2275 if (wdev) {
2276 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2277
2278 switch (type) {
2279 case NL80211_TX_POWER_AUTOMATIC:
2280 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2281 break;
2282 case NL80211_TX_POWER_LIMITED:
2283 case NL80211_TX_POWER_FIXED:
2284 if (mbm < 0 || (mbm % 100))
2285 return -EOPNOTSUPP;
2286 sdata->user_power_level = MBM_TO_DBM(mbm);
2287 break;
2288 }
2289
2290 ieee80211_recalc_txpower(sdata);
2291
2292 return 0;
2293 }
55de908a 2294
7643a2c3 2295 switch (type) {
fa61cf70 2296 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2297 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
7643a2c3 2298 break;
fa61cf70 2299 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2300 case NL80211_TX_POWER_FIXED:
2301 if (mbm < 0 || (mbm % 100))
2302 return -EOPNOTSUPP;
fa61cf70 2303 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2304 break;
7643a2c3
JB		 2305 }
2306
1ea6f9c0
JB		 2307 mutex_lock(&local->iflist_mtx);
2308 list_for_each_entry(sdata, &local->interfaces, list)
2309 sdata->user_power_level = local->user_power_level;
2310 list_for_each_entry(sdata, &local->interfaces, list)
2311 ieee80211_recalc_txpower(sdata);
2312 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2313
2314 return 0;
2315}
2316
c8442118
JB		 2317static int ieee80211_get_tx_power(struct wiphy *wiphy,
2318 struct wireless_dev *wdev,
2319 int *dbm)
7643a2c3
JB		 2320{
2321 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2322 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2323
1ea6f9c0
JB		 2324 if (!local->use_chanctx)
2325 *dbm = local->hw.conf.power_level;
2326 else
2327 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2328
7643a2c3
JB		 2329 return 0;
2330}
2331
ab737a4f 2332static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2333 const u8 *addr)
ab737a4f
JB		 2334{
2335 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2336
2337 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2338
2339 return 0;
2340}
2341
1f87f7d3
JB		 2342static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2343{
2344 struct ieee80211_local *local = wiphy_priv(wiphy);
2345
2346 drv_rfkill_poll(local);
2347}
2348
aff89a9b 2349#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2350static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2351 struct wireless_dev *wdev,
2352 void *data, int len)
aff89a9b
JB		 2353{
2354 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2355 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2356
2357 if (!local->ops->testmode_cmd)
2358 return -EOPNOTSUPP;
2359
52981cd7
DS		 2360 if (wdev) {
2361 struct ieee80211_sub_if_data *sdata;
2362
2363 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2364 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2365 vif = &sdata->vif;
2366 }
2367
2368 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2369}
71063f0e
WYG		 2370
2371static int ieee80211_testmode_dump(struct wiphy *wiphy,
2372 struct sk_buff *skb,
2373 struct netlink_callback *cb,
2374 void *data, int len)
2375{
2376 struct ieee80211_local *local = wiphy_priv(wiphy);
2377
2378 if (!local->ops->testmode_dump)
2379 return -EOPNOTSUPP;
2380
2381 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2382}
aff89a9b
JB		 2383#endif
2384
687da132
EG		 2385int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2386 enum ieee80211_smps_mode smps_mode)
2387{
2388 struct sta_info *sta;
2389 enum ieee80211_smps_mode old_req;
2390 int i;
2391
2392 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2393 return -EINVAL;
2394
2395 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2396 return 0;
2397
2398 old_req = sdata->u.ap.req_smps;
2399 sdata->u.ap.req_smps = smps_mode;
2400
2401 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2402 if (old_req == smps_mode ||
2403 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2404 return 0;
2405
2406 /* If no associated stations, there's no need to do anything */
2407 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2408 sdata->smps_mode = smps_mode;
2409 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2410 return 0;
2411 }
2412
2413 ht_dbg(sdata,
2414 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2415 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2416
2417 mutex_lock(&sdata->local->sta_mtx);
2418 for (i = 0; i < STA_HASH_SIZE; i++) {
2419 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2420 lockdep_is_held(&sdata->local->sta_mtx));
2421 sta;
2422 sta = rcu_dereference_protected(sta->hnext,
2423 lockdep_is_held(&sdata->local->sta_mtx))) {
2424 /*
2425 * Only stations associated to our AP and
2426 * associated VLANs
2427 */
2428 if (sta->sdata->bss != &sdata->u.ap)
2429 continue;
2430
2431 /* This station doesn't support MIMO - skip it */
2432 if (sta_info_tx_streams(sta) == 1)
2433 continue;
2434
2435 /*
2436 * Don't wake up a STA just to send the action frame
2437 * unless we are getting more restrictive.
2438 */
2439 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2440 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2441 smps_mode)) {
2442 ht_dbg(sdata,
2443 "Won't send SMPS to sleeping STA %pM\n",
2444 sta->sta.addr);
2445 continue;
2446 }
2447
2448 /*
2449 * If the STA is not authorized, wait until it gets
2450 * authorized and the action frame will be sent then.
2451 */
2452 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2453 continue;
2454
2455 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2456 ieee80211_send_smps_action(sdata, smps_mode,
2457 sta->sta.addr,
2458 sdata->vif.bss_conf.bssid);
2459 }
2460 }
2461 mutex_unlock(&sdata->local->sta_mtx);
2462
2463 sdata->smps_mode = smps_mode;
2464 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2465
2466 return 0;
2467}
2468
2469int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2470 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2471{
2472 const u8 *ap;
2473 enum ieee80211_smps_mode old_req;
2474 int err;
2475
8d61ffa5 2476 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2477
687da132
EG		 2478 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2479 return -EINVAL;
2480
0f78231b
JB		 2481 old_req = sdata->u.mgd.req_smps;
2482 sdata->u.mgd.req_smps = smps_mode;
2483
2484 if (old_req == smps_mode &&
2485 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2486 return 0;
2487
2488 /*
2489 * If not associated, or current association is not an HT
04ecd257
JB		 2490 * association, there's no need to do anything, just store
2491 * the new value until we associate.
0f78231b
JB		 2492 */
2493 if (!sdata->u.mgd.associated ||
4bf88530 2494 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2495 return 0;
0f78231b 2496
0c1ad2ca 2497 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2498
2499 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2500 if (sdata->u.mgd.powersave)
2501 smps_mode = IEEE80211_SMPS_DYNAMIC;
2502 else
2503 smps_mode = IEEE80211_SMPS_OFF;
2504 }
2505
2506 /* send SM PS frame to AP */
2507 err = ieee80211_send_smps_action(sdata, smps_mode,
2508 ap, ap);
2509 if (err)
2510 sdata->u.mgd.req_smps = old_req;
2511
2512 return err;
2513}
2514
bc92afd9
JB		 2515static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2516 bool enabled, int timeout)
2517{
2518 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2519 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2520
2d3db210 2521 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2522 return -EOPNOTSUPP;
2523
bc92afd9
JB		 2524 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2525 return -EOPNOTSUPP;
2526
2527 if (enabled == sdata->u.mgd.powersave &&
ff616381 2528 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2529 return 0;
2530
2531 sdata->u.mgd.powersave = enabled;
ff616381 2532 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2533
0f78231b 2534 /* no change, but if automatic follow powersave */
ed405be5 2535 sdata_lock(sdata);
687da132 2536 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2537 sdata_unlock(sdata);
0f78231b 2538
bc92afd9
JB		 2539 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2540 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2541
2542 ieee80211_recalc_ps(local, -1);
ab095877 2543 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2544
2545 return 0;
2546}
2547
a97c13c3
JO		 2548static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2549 struct net_device *dev,
2550 s32 rssi_thold, u32 rssi_hyst)
2551{
2552 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2553 struct ieee80211_vif *vif = &sdata->vif;
2554 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2555
a97c13c3
JO		 2556 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2557 rssi_hyst == bss_conf->cqm_rssi_hyst)
2558 return 0;
2559
2560 bss_conf->cqm_rssi_thold = rssi_thold;
2561 bss_conf->cqm_rssi_hyst = rssi_hyst;
2562
2563 /* tell the driver upon association, unless already associated */
ea086359
JB		 2564 if (sdata->u.mgd.associated &&
2565 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2566 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2567
2568 return 0;
2569}
2570
9930380f
JB		 2571static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2572 struct net_device *dev,
2573 const u8 *addr,
2574 const struct cfg80211_bitrate_mask *mask)
2575{
2576 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2577 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2578 int i, ret;
2c7e6bc9 2579
554a43d5
EP		 2580 if (!ieee80211_sdata_running(sdata))
2581 return -ENETDOWN;
2582
bdbfd6b5
SM		 2583 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2584 ret = drv_set_bitrate_mask(local, sdata, mask);
2585 if (ret)
2586 return ret;
2587 }
9930380f 2588
19468413 2589 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2590 struct ieee80211_supported_band *sband = wiphy->bands[i];
2591 int j;
2592
37eb0b16 2593 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2594 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2595 sizeof(mask->control[i].ht_mcs));
2ffbe6d3
FF		 2596
2597 sdata->rc_has_mcs_mask[i] = false;
2598 if (!sband)
2599 continue;
2600
2601 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2602 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2603 sdata->rc_has_mcs_mask[i] = true;
2604 break;
2605 }
19468413 2606 }
9930380f 2607
37eb0b16 2608 return 0;
9930380f
JB		 2609}
2610
2eb278e0
JB		 2611static int ieee80211_start_roc_work(struct ieee80211_local *local,
2612 struct ieee80211_sub_if_data *sdata,
2613 struct ieee80211_channel *channel,
2eb278e0 2614 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2615 struct sk_buff *txskb,
2616 enum ieee80211_roc_type type)
2eb278e0
JB		 2617{
2618 struct ieee80211_roc_work *roc, *tmp;
2619 bool queued = false;
21f83589 2620 int ret;
21f83589
JB		 2621
2622 lockdep_assert_held(&local->mtx);
2623
fe57d9f5
JB		 2624 if (local->use_chanctx && !local->ops->remain_on_channel)
2625 return -EOPNOTSUPP;
2626
2eb278e0
JB		 2627 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2628 if (!roc)
2629 return -ENOMEM;
2630
2631 roc->chan = channel;
2eb278e0
JB		 2632 roc->duration = duration;
2633 roc->req_duration = duration;
2634 roc->frame = txskb;
d339d5ca 2635 roc->type = type;
2eb278e0
JB		 2636 roc->mgmt_tx_cookie = (unsigned long)txskb;
2637 roc->sdata = sdata;
2638 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2639 INIT_LIST_HEAD(&roc->dependents);
2640
2641 /* if there's one pending or we're scanning, queue this one */
164eb02d
SW		 2642 if (!list_empty(&local->roc_list) ||
2643 local->scanning || local->radar_detect_enabled)
2eb278e0
JB		 2644 goto out_check_combine;
2645
2646 /* if not HW assist, just queue & schedule work */
2647 if (!local->ops->remain_on_channel) {
2648 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2649 goto out_queue;
2650 }
2651
2652 /* otherwise actually kick it off here (for error handling) */
2653
2654 /*
2655 * If the duration is zero, then the driver
2656 * wouldn't actually do anything. Set it to
2657 * 10 for now.
2658 *
2659 * TODO: cancel the off-channel operation
2660 * when we get the SKB's TX status and
2661 * the wait time was zero before.
2662 */
2663 if (!duration)
2664 duration = 10;
2665
d339d5ca 2666 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2667 if (ret) {
2eb278e0
JB		 2668 kfree(roc);
2669 return ret;
21f83589
JB		 2670 }
2671
2eb278e0
JB		 2672 roc->started = true;
2673 goto out_queue;
2674
2675 out_check_combine:
2676 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2677 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2678 continue;
2679
2680 /*
2681 * Extend this ROC if possible:
2682 *
2683 * If it hasn't started yet, just increase the duration
2684 * and add the new one to the list of dependents.
d339d5ca
IP		 2685 * If the type of the new ROC has higher priority, modify the
2686 * type of the previous one to match that of the new one.
2eb278e0
JB		 2687 */
2688 if (!tmp->started) {
2689 list_add_tail(&roc->list, &tmp->dependents);
2690 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2691 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2692 queued = true;
2693 break;
2694 }
2695
2696 /* If it has already started, it's more difficult ... */
2697 if (local->ops->remain_on_channel) {
2698 unsigned long j = jiffies;
2699
2700 /*
2701 * In the offloaded ROC case, if it hasn't begun, add
2702 * this new one to the dependent list to be handled
d339d5ca 2703 * when the master one begins. If it has begun,
2eb278e0
JB		 2704 * check that there's still a minimum time left and
2705 * if so, start this one, transmitting the frame, but
d339d5ca 2706 * add it to the list directly after this one with
2eb278e0
JB		 2707 * a reduced time so we'll ask the driver to execute
2708 * it right after finishing the previous one, in the
2709 * hope that it'll also be executed right afterwards,
2710 * effectively extending the old one.
2711 * If there's no minimum time left, just add it to the
2712 * normal list.
d339d5ca
IP		 2713 * TODO: the ROC type is ignored here, assuming that it
2714 * is better to immediately use the current ROC.
2eb278e0
JB		 2715 */
2716 if (!tmp->hw_begun) {
2717 list_add_tail(&roc->list, &tmp->dependents);
2718 queued = true;
2719 break;
2720 }
2721
2722 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2723 tmp->hw_start_time +
2724 msecs_to_jiffies(tmp->duration))) {
2725 int new_dur;
2726
2727 ieee80211_handle_roc_started(roc);
2728
2729 new_dur = roc->duration -
2730 jiffies_to_msecs(tmp->hw_start_time +
2731 msecs_to_jiffies(
2732 tmp->duration) -
2733 j);
2734
2735 if (new_dur > 0) {
2736 /* add right after tmp */
2737 list_add(&roc->list, &tmp->list);
2738 } else {
2739 list_add_tail(&roc->list,
2740 &tmp->dependents);
2741 }
2742 queued = true;
2743 }
2744 } else if (del_timer_sync(&tmp->work.timer)) {
2745 unsigned long new_end;
2746
2747 /*
2748 * In the software ROC case, cancel the timer, if
2749 * that fails then the finish work is already
2750 * queued/pending and thus we queue the new ROC
2751 * normally, if that succeeds then we can extend
2752 * the timer duration and TX the frame (if any.)
2753 */
2754
2755 list_add_tail(&roc->list, &tmp->dependents);
2756 queued = true;
2757
2758 new_end = jiffies + msecs_to_jiffies(roc->duration);
2759
2760 /* ok, it was started & we canceled timer */
2761 if (time_after(new_end, tmp->work.timer.expires))
2762 mod_timer(&tmp->work.timer, new_end);
2763 else
2764 add_timer(&tmp->work.timer);
2765
2766 ieee80211_handle_roc_started(roc);
2767 }
2768 break;
2769 }
2770
2771 out_queue:
2772 if (!queued)
2773 list_add_tail(&roc->list, &local->roc_list);
2774
2775 /*
50febf6a 2776 * cookie is either the roc cookie (for normal roc)
2eb278e0
JB		 2777 * or the SKB (for mgmt TX)
2778 */
50febf6a
JB		 2779 if (!txskb) {
2780 /* local->mtx protects this */
2781 local->roc_cookie_counter++;
2782 roc->cookie = local->roc_cookie_counter;
2783 /* wow, you wrapped 64 bits ... more likely a bug */
2784 if (WARN_ON(roc->cookie == 0)) {
2785 roc->cookie = 1;
2786 local->roc_cookie_counter++;
2787 }
2788 *cookie = roc->cookie;
2789 } else {
2eb278e0 2790 *cookie = (unsigned long)txskb;
50febf6a 2791 }
2eb278e0
JB		 2792
2793 return 0;
21f83589
JB		 2794}
2795
b8bc4b0a 2796static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2797 struct wireless_dev *wdev,
b8bc4b0a 2798 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2799 unsigned int duration,
2800 u64 *cookie)
2801{
71bbc994 2802 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2803 struct ieee80211_local *local = sdata->local;
2eb278e0 2804 int ret;
21f83589 2805
2eb278e0 2806 mutex_lock(&local->mtx);
42d97a59 2807 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2808 duration, cookie, NULL,
2809 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2810 mutex_unlock(&local->mtx);
b8bc4b0a 2811
2eb278e0 2812 return ret;
b8bc4b0a
JB		 2813}
2814
2eb278e0
JB		 2815static int ieee80211_cancel_roc(struct ieee80211_local *local,
2816 u64 cookie, bool mgmt_tx)
21f83589 2817{
2eb278e0 2818 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2819 int ret;
2820
2eb278e0
JB		 2821 mutex_lock(&local->mtx);
2822 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2823 struct ieee80211_roc_work *dep, *tmp2;
2824
2825 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2826 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2827 continue;
2828 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2829 continue;
2830 /* found dependent item -- just remove it */
2831 list_del(&dep->list);
2832 mutex_unlock(&local->mtx);
2833
3fbd45ca 2834 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2835 return 0;
2836 }
2837
50febf6a 2838 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2839 continue;
2840 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2841 continue;
21f83589 2842
2eb278e0
JB		 2843 found = roc;
2844 break;
2845 }
21f83589 2846
2eb278e0
JB		 2847 if (!found) {
2848 mutex_unlock(&local->mtx);
2849 return -ENOENT;
2850 }
21f83589 2851
e979e33c
JB		 2852 /*
2853 * We found the item to cancel, so do that. Note that it
2854 * may have dependents, which we also cancel (and send
2855 * the expired signal for.) Not doing so would be quite
2856 * tricky here, but we may need to fix it later.
2857 */
2858
2eb278e0
JB		 2859 if (local->ops->remain_on_channel) {
2860 if (found->started) {
2861 ret = drv_cancel_remain_on_channel(local);
2862 if (WARN_ON_ONCE(ret)) {
2863 mutex_unlock(&local->mtx);
2864 return ret;
2865 }
2866 }
21f83589 2867
2eb278e0 2868 list_del(&found->list);
21f83589 2869
0f6b3f59
JB		 2870 if (found->started)
2871 ieee80211_start_next_roc(local);
2eb278e0 2872 mutex_unlock(&local->mtx);
21f83589 2873
3fbd45ca 2874 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2875 } else {
2876 /* work may be pending so use it all the time */
2877 found->abort = true;
2878 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2879
21f83589
JB		 2880 mutex_unlock(&local->mtx);
2881
2eb278e0
JB		 2882 /* work will clean up etc */
2883 flush_delayed_work(&found->work);
3fbd45ca
JB		 2884 WARN_ON(!found->to_be_freed);
2885 kfree(found);
21f83589 2886 }
b8bc4b0a 2887
2eb278e0 2888 return 0;
b8bc4b0a
JB		 2889}
2890
2eb278e0 2891static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2892 struct wireless_dev *wdev,
2eb278e0 2893 u64 cookie)
f30221e4 2894{
71bbc994 2895 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2896 struct ieee80211_local *local = sdata->local;
f30221e4 2897
2eb278e0 2898 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2899}
2900
164eb02d
SW		 2901static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2902 struct net_device *dev,
2903 struct cfg80211_chan_def *chandef)
2904{
2905 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2906 struct ieee80211_local *local = sdata->local;
2907 unsigned long timeout;
2908 int err;
2909
34a3740d
JB		 2910 mutex_lock(&local->mtx);
2911 if (!list_empty(&local->roc_list) || local->scanning) {
2912 err = -EBUSY;
2913 goto out_unlock;
2914 }
164eb02d
SW		 2915
2916 /* whatever, but channel contexts should not complain about that one */
2917 sdata->smps_mode = IEEE80211_SMPS_OFF;
2918 sdata->needed_rx_chains = local->rx_chains;
2919 sdata->radar_required = true;
2920
164eb02d
SW		 2921 err = ieee80211_vif_use_channel(sdata, chandef,
2922 IEEE80211_CHANCTX_SHARED);
164eb02d 2923 if (err)
34a3740d 2924 goto out_unlock;
164eb02d
SW		 2925
2926 timeout = msecs_to_jiffies(IEEE80211_DFS_MIN_CAC_TIME_MS);
2927 ieee80211_queue_delayed_work(&sdata->local->hw,
2928 &sdata->dfs_cac_timer_work, timeout);
2929
34a3740d
JB		 2930 out_unlock:
2931 mutex_unlock(&local->mtx);
2932 return err;
164eb02d
SW		 2933}
2934
73da7d5b
SW		 2935static struct cfg80211_beacon_data *
2936cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2937{
2938 struct cfg80211_beacon_data *new_beacon;
2939 u8 *pos;
2940 int len;
2941
2942 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2943 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2944 beacon->probe_resp_len;
2945
2946 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2947 if (!new_beacon)
2948 return NULL;
2949
2950 pos = (u8 *)(new_beacon + 1);
2951 if (beacon->head_len) {
2952 new_beacon->head_len = beacon->head_len;
2953 new_beacon->head = pos;
2954 memcpy(pos, beacon->head, beacon->head_len);
2955 pos += beacon->head_len;
2956 }
2957 if (beacon->tail_len) {
2958 new_beacon->tail_len = beacon->tail_len;
2959 new_beacon->tail = pos;
2960 memcpy(pos, beacon->tail, beacon->tail_len);
2961 pos += beacon->tail_len;
2962 }
2963 if (beacon->beacon_ies_len) {
2964 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2965 new_beacon->beacon_ies = pos;
2966 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2967 pos += beacon->beacon_ies_len;
2968 }
2969 if (beacon->proberesp_ies_len) {
2970 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2971 new_beacon->proberesp_ies = pos;
2972 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2973 pos += beacon->proberesp_ies_len;
2974 }
2975 if (beacon->assocresp_ies_len) {
2976 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2977 new_beacon->assocresp_ies = pos;
2978 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2979 pos += beacon->assocresp_ies_len;
2980 }
2981 if (beacon->probe_resp_len) {
2982 new_beacon->probe_resp_len = beacon->probe_resp_len;
2983 beacon->probe_resp = pos;
2984 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2985 pos += beacon->probe_resp_len;
2986 }
2987
2988 return new_beacon;
2989}
2990
2991void ieee80211_csa_finalize_work(struct work_struct *work)
2992{
2993 struct ieee80211_sub_if_data *sdata =
2994 container_of(work, struct ieee80211_sub_if_data,
2995 csa_finalize_work);
2996 struct ieee80211_local *local = sdata->local;
0951ebb8 2997 int err, changed = 0;
73da7d5b 2998
e487eaeb
SW		 2999 sdata_lock(sdata);
3000 /* AP might have been stopped while waiting for the lock. */
3001 if (!sdata->vif.csa_active)
3002 goto unlock;
3003
73da7d5b 3004 if (!ieee80211_sdata_running(sdata))
e487eaeb 3005 goto unlock;
73da7d5b 3006
73da7d5b 3007 sdata->radar_required = sdata->csa_radar_required;
34a3740d 3008 mutex_lock(&local->mtx);
33787fc4 3009 err = ieee80211_vif_change_channel(sdata, &changed);
34a3740d 3010 mutex_unlock(&local->mtx);
73da7d5b 3011 if (WARN_ON(err < 0))
e487eaeb 3012 goto unlock;
73da7d5b 3013
7578d575 3014 if (!local->use_chanctx) {
33787fc4 3015 local->_oper_chandef = sdata->csa_chandef;
7578d575
AN		 3016 ieee80211_hw_config(local, 0);
3017 }
3018
cd7760e6 3019 ieee80211_bss_info_change_notify(sdata, changed);
73da7d5b 3020
e487eaeb 3021 sdata->vif.csa_active = false;
cd7760e6
SW		 3022 switch (sdata->vif.type) {
3023 case NL80211_IFTYPE_AP:
3024 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
3025 if (err < 0)
e487eaeb
SW		 3026 goto unlock;
3027
cd7760e6
SW		 3028 changed |= err;
3029 kfree(sdata->u.ap.next_beacon);
3030 sdata->u.ap.next_beacon = NULL;
3031
3032 ieee80211_bss_info_change_notify(sdata, err);
3033 break;
3034 case NL80211_IFTYPE_ADHOC:
3035 ieee80211_ibss_finish_csa(sdata);
3036 break;
b8456a14
CYY		 3037#ifdef CONFIG_MAC80211_MESH
3038 case NL80211_IFTYPE_MESH_POINT:
3039 err = ieee80211_mesh_finish_csa(sdata);
3040 if (err < 0)
e487eaeb 3041 goto unlock;
b8456a14
CYY		 3042 break;
3043#endif
cd7760e6
SW		 3044 default:
3045 WARN_ON(1);
e487eaeb 3046 goto unlock;
cd7760e6 3047 }
73da7d5b
SW		 3048
3049 ieee80211_wake_queues_by_reason(&sdata->local->hw,
3050 IEEE80211_MAX_QUEUE_MAP,
3051 IEEE80211_QUEUE_STOP_REASON_CSA);
3052
33787fc4 3053 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
e487eaeb
SW		 3054
3055unlock:
3056 sdata_unlock(sdata);
73da7d5b
SW		 3057}
3058
82a8e17d
LC		 3059int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3060 struct cfg80211_csa_settings *params)
73da7d5b
SW		 3061{
3062 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3063 struct ieee80211_local *local = sdata->local;
3064 struct ieee80211_chanctx_conf *chanctx_conf;
3065 struct ieee80211_chanctx *chanctx;
c6da674a 3066 struct ieee80211_if_mesh __maybe_unused *ifmsh;
73da7d5b
SW		 3067 int err, num_chanctx;
3068
7ca133bc
SW		 3069 lockdep_assert_held(&sdata->wdev.mtx);
3070
73da7d5b
SW		 3071 if (!list_empty(&local->roc_list) || local->scanning)
3072 return -EBUSY;
3073
3074 if (sdata->wdev.cac_started)
3075 return -EBUSY;
3076
3077 if (cfg80211_chandef_identical(&params->chandef,
3078 &sdata->vif.bss_conf.chandef))
3079 return -EINVAL;
3080
3081 rcu_read_lock();
3082 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3083 if (!chanctx_conf) {
3084 rcu_read_unlock();
3085 return -EBUSY;
3086 }
3087
3088 /* don't handle for multi-VIF cases */
3089 chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
3090 if (chanctx->refcount > 1) {
3091 rcu_read_unlock();
3092 return -EBUSY;
3093 }
3094 num_chanctx = 0;
3095 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3096 num_chanctx++;
3097 rcu_read_unlock();
3098
3099 if (num_chanctx > 1)
3100 return -EBUSY;
3101
3102 /* don't allow another channel switch if one is already active. */
3103 if (sdata->vif.csa_active)
3104 return -EBUSY;
3105
73da7d5b
SW		 3106 switch (sdata->vif.type) {
3107 case NL80211_IFTYPE_AP:
cd7760e6
SW		 3108 sdata->csa_counter_offset_beacon =
3109 params->counter_offset_beacon;
3110 sdata->csa_counter_offset_presp = params->counter_offset_presp;
3111 sdata->u.ap.next_beacon =
3112 cfg80211_beacon_dup(&params->beacon_after);
3113 if (!sdata->u.ap.next_beacon)
3114 return -ENOMEM;
3115
3116 err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
3117 if (err < 0) {
3118 kfree(sdata->u.ap.next_beacon);
3119 return err;
3120 }
3121 break;
3122 case NL80211_IFTYPE_ADHOC:
3123 if (!sdata->vif.bss_conf.ibss_joined)
3124 return -EINVAL;
3125
3126 if (params->chandef.width != sdata->u.ibss.chandef.width)
3127 return -EINVAL;
3128
3129 switch (params->chandef.width) {
3130 case NL80211_CHAN_WIDTH_40:
3131 if (cfg80211_get_chandef_type(&params->chandef) !=
3132 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3133 return -EINVAL;
3134 case NL80211_CHAN_WIDTH_5:
3135 case NL80211_CHAN_WIDTH_10:
3136 case NL80211_CHAN_WIDTH_20_NOHT:
3137 case NL80211_CHAN_WIDTH_20:
3138 break;
3139 default:
3140 return -EINVAL;
3141 }
3142
3143 /* changes into another band are not supported */
3144 if (sdata->u.ibss.chandef.chan->band !=
3145 params->chandef.chan->band)
3146 return -EINVAL;
3147
3148 err = ieee80211_ibss_csa_beacon(sdata, params);
3149 if (err < 0)
3150 return err;
73da7d5b 3151 break;
c6da674a
CYY		 3152#ifdef CONFIG_MAC80211_MESH
3153 case NL80211_IFTYPE_MESH_POINT:
3154 ifmsh = &sdata->u.mesh;
3155
3156 if (!ifmsh->mesh_id)
3157 return -EINVAL;
3158
3159 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3160 return -EINVAL;
3161
3162 /* changes into another band are not supported */
3163 if (sdata->vif.bss_conf.chandef.chan->band !=
3164 params->chandef.chan->band)
3165 return -EINVAL;
3166
3f718fd8
CYY		 3167 if (!ifmsh->pre_value)
3168 ifmsh->pre_value = 1;
3169 else
3170 ifmsh->pre_value++;
3171
0cb4d4dc
LC		 3172 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE)
3173 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
3174
3175 err = ieee80211_mesh_csa_beacon(sdata, params,
3176 (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT));
3f718fd8 3177 if (err < 0) {
0cb4d4dc 3178 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
c6da674a 3179 return err;
3f718fd8 3180 }
c6da674a
CYY		 3181 break;
3182#endif
73da7d5b
SW		 3183 default:
3184 return -EOPNOTSUPP;
3185 }
3186
73da7d5b
SW		 3187 sdata->csa_radar_required = params->radar_required;
3188
3189 if (params->block_tx)
3190 ieee80211_stop_queues_by_reason(&local->hw,
3191 IEEE80211_MAX_QUEUE_MAP,
3192 IEEE80211_QUEUE_STOP_REASON_CSA);
3193
33787fc4 3194 sdata->csa_chandef = params->chandef;
73da7d5b
SW		 3195 sdata->vif.csa_active = true;
3196
3197 ieee80211_bss_info_change_notify(sdata, err);
3198 drv_channel_switch_beacon(sdata, &params->chandef);
3199
3200 return 0;
3201}
3202
71bbc994 3203static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3204 struct cfg80211_mgmt_tx_params *params,
3205 u64 *cookie)
026331c4 3206{
71bbc994 3207 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d
JB		 3208 struct ieee80211_local *local = sdata->local;
3209 struct sk_buff *skb;
3210 struct sta_info *sta;
b176e629 3211 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3212 bool need_offchan = false;
e247bd90 3213 u32 flags;
2eb278e0 3214 int ret;
f7ca38df 3215
b176e629 3216 if (params->dont_wait_for_ack)
e247bd90
JB		 3217 flags = IEEE80211_TX_CTL_NO_ACK;
3218 else
3219 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3220 IEEE80211_TX_CTL_REQ_TX_STATUS;
3221
b176e629 3222 if (params->no_cck)
aad14ceb
RM		 3223 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3224
9d38d85d
JB		 3225 switch (sdata->vif.type) {
3226 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3227 if (!sdata->vif.bss_conf.ibss_joined)
3228 need_offchan = true;
3229 /* fall through */
3230#ifdef CONFIG_MAC80211_MESH
3231 case NL80211_IFTYPE_MESH_POINT:
3232 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3233 !sdata->u.mesh.mesh_id_len)
3234 need_offchan = true;
3235 /* fall through */
3236#endif
663fcafd
JB		 3237 case NL80211_IFTYPE_AP:
3238 case NL80211_IFTYPE_AP_VLAN:
3239 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3240 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3241 !ieee80211_vif_is_mesh(&sdata->vif) &&
3242 !rcu_access_pointer(sdata->bss->beacon))
3243 need_offchan = true;
663fcafd 3244 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3245 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3246 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3247 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3248 break;
3249 rcu_read_lock();
3250 sta = sta_info_get(sdata, mgmt->da);
3251 rcu_read_unlock();
3252 if (!sta)
3253 return -ENOLINK;
3254 break;
3255 case NL80211_IFTYPE_STATION:
663fcafd 3256 case NL80211_IFTYPE_P2P_CLIENT:
2eb278e0
JB		 3257 if (!sdata->u.mgd.associated)
3258 need_offchan = true;
9d38d85d 3259 break;
f142c6b9
JB		 3260 case NL80211_IFTYPE_P2P_DEVICE:
3261 need_offchan = true;
3262 break;
9d38d85d
JB		 3263 default:
3264 return -EOPNOTSUPP;
3265 }
3266
f7aeb6fb
AQ		 3267 /* configurations requiring offchan cannot work if no channel has been
3268 * specified
3269 */
b176e629 3270 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3271 return -EINVAL;
3272
2eb278e0
JB		 3273 mutex_lock(&local->mtx);
3274
3275 /* Check if the operating channel is the requested channel */
3276 if (!need_offchan) {
55de908a
JB		 3277 struct ieee80211_chanctx_conf *chanctx_conf;
3278
3279 rcu_read_lock();
3280 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3281
f7aeb6fb 3282 if (chanctx_conf) {
b176e629
AO		 3283 need_offchan = params->chan &&
3284 (params->chan !=
3285 chanctx_conf->def.chan);
3286 } else if (!params->chan) {
f7aeb6fb
AQ		 3287 ret = -EINVAL;
3288 rcu_read_unlock();
3289 goto out_unlock;
3290 } else {
2eb278e0 3291 need_offchan = true;
f7aeb6fb 3292 }
55de908a 3293 rcu_read_unlock();
2eb278e0
JB		 3294 }
3295
b176e629 3296 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3297 ret = -EBUSY;
3298 goto out_unlock;
3299 }
3300
b176e629 3301 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3302 if (!skb) {
3303 ret = -ENOMEM;
3304 goto out_unlock;
3305 }
9d38d85d
JB		 3306 skb_reserve(skb, local->hw.extra_tx_headroom);
3307
b176e629 3308 memcpy(skb_put(skb, params->len), params->buf, params->len);
9d38d85d
JB		 3309
3310 IEEE80211_SKB_CB(skb)->flags = flags;
3311
3312 skb->dev = sdata->dev;
9d38d85d 3313
2eb278e0 3314 if (!need_offchan) {
7f9f78ab 3315 *cookie = (unsigned long) skb;
f30221e4 3316 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3317 ret = 0;
3318 goto out_unlock;
f30221e4
JB		 3319 }
3320
6c17b77b
SF		 3321 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3322 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2eb278e0
JB		 3323 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3324 IEEE80211_SKB_CB(skb)->hw_queue =
3325 local->hw.offchannel_tx_hw_queue;
f30221e4 3326
2eb278e0 3327 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3328 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3329 params->wait, cookie, skb,
d339d5ca 3330 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3331 if (ret)
3332 kfree_skb(skb);
3333 out_unlock:
3334 mutex_unlock(&local->mtx);
3335 return ret;
026331c4
JM		 3336}
3337
f30221e4 3338static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3339 struct wireless_dev *wdev,
f30221e4
JB		 3340 u64 cookie)
3341{
71bbc994 3342 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3343
2eb278e0 3344 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3345}
3346
7be5086d 3347static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3348 struct wireless_dev *wdev,
7be5086d
JB		 3349 u16 frame_type, bool reg)
3350{
3351 struct ieee80211_local *local = wiphy_priv(wiphy);
3352
6abe0563 3353 switch (frame_type) {
6abe0563
WH		 3354 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3355 if (reg)
3356 local->probe_req_reg++;
3357 else
3358 local->probe_req_reg--;
7be5086d 3359
35f5149e
FF		 3360 if (!local->open_count)
3361 break;
3362
6abe0563
WH		 3363 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3364 break;
3365 default:
3366 break;
3367 }
7be5086d
JB		 3368}
3369
15d96753
BR		 3370static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3371{
3372 struct ieee80211_local *local = wiphy_priv(wiphy);
3373
3374 if (local->started)
3375 return -EOPNOTSUPP;
3376
3377 return drv_set_antenna(local, tx_ant, rx_ant);
3378}
3379
3380static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3381{
3382 struct ieee80211_local *local = wiphy_priv(wiphy);
3383
3384 return drv_get_antenna(local, tx_ant, rx_ant);
3385}
3386
38c09159
JL		 3387static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
3388{
3389 struct ieee80211_local *local = wiphy_priv(wiphy);
3390
3391 return drv_set_ringparam(local, tx, rx);
3392}
3393
3394static void ieee80211_get_ringparam(struct wiphy *wiphy,
3395 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
3396{
3397 struct ieee80211_local *local = wiphy_priv(wiphy);
3398
3399 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
3400}
3401
c68f4b89
JB		 3402static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3403 struct net_device *dev,
3404 struct cfg80211_gtk_rekey_data *data)
3405{
3406 struct ieee80211_local *local = wiphy_priv(wiphy);
3407 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3408
3409 if (!local->ops->set_rekey_data)
3410 return -EOPNOTSUPP;
3411
3412 drv_set_rekey_data(local, sdata, data);
3413
3414 return 0;
3415}
3416
dfe018bf
AN		 3417static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
3418{
3419 u8 *pos = (void *)skb_put(skb, 7);
3420
3421 *pos++ = WLAN_EID_EXT_CAPABILITY;
3422 *pos++ = 5; /* len */
3423 *pos++ = 0x0;
3424 *pos++ = 0x0;
3425 *pos++ = 0x0;
3426 *pos++ = 0x0;
3427 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
3428}
3429
3430static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
3431{
3432 struct ieee80211_local *local = sdata->local;
3433 u16 capab;
3434
3435 capab = 0;
55de908a 3436 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
dfe018bf
AN		 3437 return capab;
3438
3439 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
3440 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
3441 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
3442 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
3443
3444 return capab;
3445}
3446
3447static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
3448 u8 *peer, u8 *bssid)
3449{
3450 struct ieee80211_tdls_lnkie *lnkid;
3451
3452 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
3453
3454 lnkid->ie_type = WLAN_EID_LINK_ID;
3455 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
3456
3457 memcpy(lnkid->bssid, bssid, ETH_ALEN);
3458 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
3459 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
3460}
3461
3462static int
3463ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
3464 u8 *peer, u8 action_code, u8 dialog_token,
3465 u16 status_code, struct sk_buff *skb)
3466{
3467 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3468 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3469 struct ieee80211_tdls_data *tf;
3470
3471 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
3472
3473 memcpy(tf->da, peer, ETH_ALEN);
3474 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
3475 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
3476 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
3477
3478 switch (action_code) {
3479 case WLAN_TDLS_SETUP_REQUEST:
3480 tf->category = WLAN_CATEGORY_TDLS;
3481 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
3482
3483 skb_put(skb, sizeof(tf->u.setup_req));
3484 tf->u.setup_req.dialog_token = dialog_token;
3485 tf->u.setup_req.capability =
3486 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3487
55de908a
JB		 3488 ieee80211_add_srates_ie(sdata, skb, false, band);
3489 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3490 ieee80211_tdls_add_ext_capab(skb);
3491 break;
3492 case WLAN_TDLS_SETUP_RESPONSE:
3493 tf->category = WLAN_CATEGORY_TDLS;
3494 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
3495
3496 skb_put(skb, sizeof(tf->u.setup_resp));
3497 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
3498 tf->u.setup_resp.dialog_token = dialog_token;
3499 tf->u.setup_resp.capability =
3500 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3501
55de908a
JB		 3502 ieee80211_add_srates_ie(sdata, skb, false, band);
3503 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3504 ieee80211_tdls_add_ext_capab(skb);
3505 break;
3506 case WLAN_TDLS_SETUP_CONFIRM:
3507 tf->category = WLAN_CATEGORY_TDLS;
3508 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
3509
3510 skb_put(skb, sizeof(tf->u.setup_cfm));
3511 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
3512 tf->u.setup_cfm.dialog_token = dialog_token;
3513 break;
3514 case WLAN_TDLS_TEARDOWN:
3515 tf->category = WLAN_CATEGORY_TDLS;
3516 tf->action_code = WLAN_TDLS_TEARDOWN;
3517
3518 skb_put(skb, sizeof(tf->u.teardown));
3519 tf->u.teardown.reason_code = cpu_to_le16(status_code);
3520 break;
3521 case WLAN_TDLS_DISCOVERY_REQUEST:
3522 tf->category = WLAN_CATEGORY_TDLS;
3523 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
3524
3525 skb_put(skb, sizeof(tf->u.discover_req));
3526 tf->u.discover_req.dialog_token = dialog_token;
3527 break;
3528 default:
3529 return -EINVAL;
3530 }
3531
3532 return 0;
3533}
3534
3535static int
3536ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
3537 u8 *peer, u8 action_code, u8 dialog_token,
3538 u16 status_code, struct sk_buff *skb)
3539{
3540 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
55de908a 3541 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
dfe018bf
AN		 3542 struct ieee80211_mgmt *mgmt;
3543
3544 mgmt = (void *)skb_put(skb, 24);
3545 memset(mgmt, 0, 24);
3546 memcpy(mgmt->da, peer, ETH_ALEN);
3547 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
3548 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
3549
3550 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
3551 IEEE80211_STYPE_ACTION);
3552
3553 switch (action_code) {
3554 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3555 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
3556 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
3557 mgmt->u.action.u.tdls_discover_resp.action_code =
3558 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
3559 mgmt->u.action.u.tdls_discover_resp.dialog_token =
3560 dialog_token;
3561 mgmt->u.action.u.tdls_discover_resp.capability =
3562 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
3563
55de908a
JB		 3564 ieee80211_add_srates_ie(sdata, skb, false, band);
3565 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
dfe018bf
AN		 3566 ieee80211_tdls_add_ext_capab(skb);
3567 break;
3568 default:
3569 return -EINVAL;
3570 }
3571
3572 return 0;
3573}
3574
3575static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
3576 u8 *peer, u8 action_code, u8 dialog_token,
3577 u16 status_code, const u8 *extra_ies,
3578 size_t extra_ies_len)
3579{
3580 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3581 struct ieee80211_local *local = sdata->local;
dfe018bf
AN		 3582 struct sk_buff *skb = NULL;
3583 bool send_direct;
3584 int ret;
3585
3586 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3587 return -ENOTSUPP;
3588
3589 /* make sure we are in managed mode, and associated */
3590 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
3591 !sdata->u.mgd.associated)
3592 return -EINVAL;
3593
bdcbd8e0
JB		 3594 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
3595 action_code, peer);
dfe018bf
AN		 3596
3597 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
3598 max(sizeof(struct ieee80211_mgmt),
3599 sizeof(struct ieee80211_tdls_data)) +
3600 50 + /* supported rates */
3601 7 + /* ext capab */
3602 extra_ies_len +
3603 sizeof(struct ieee80211_tdls_lnkie));
3604 if (!skb)
3605 return -ENOMEM;
3606
dfe018bf
AN		 3607 skb_reserve(skb, local->hw.extra_tx_headroom);
3608
3609 switch (action_code) {
3610 case WLAN_TDLS_SETUP_REQUEST:
3611 case WLAN_TDLS_SETUP_RESPONSE:
3612 case WLAN_TDLS_SETUP_CONFIRM:
3613 case WLAN_TDLS_TEARDOWN:
3614 case WLAN_TDLS_DISCOVERY_REQUEST:
3615 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
3616 action_code, dialog_token,
3617 status_code, skb);
3618 send_direct = false;
3619 break;
3620 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3621 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
3622 dialog_token, status_code,
3623 skb);
3624 send_direct = true;
3625 break;
3626 default:
3627 ret = -ENOTSUPP;
3628 break;
3629 }
3630
3631 if (ret < 0)
3632 goto fail;
3633
3634 if (extra_ies_len)
3635 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
3636
3637 /* the TDLS link IE is always added last */
3638 switch (action_code) {
3639 case WLAN_TDLS_SETUP_REQUEST:
3640 case WLAN_TDLS_SETUP_CONFIRM:
3641 case WLAN_TDLS_TEARDOWN:
3642 case WLAN_TDLS_DISCOVERY_REQUEST:
3643 /* we are the initiator */
3644 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
3645 sdata->u.mgd.bssid);
3646 break;
3647 case WLAN_TDLS_SETUP_RESPONSE:
3648 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
3649 /* we are the responder */
3650 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
3651 sdata->u.mgd.bssid);
3652 break;
3653 default:
3654 ret = -ENOTSUPP;
3655 goto fail;
3656 }
3657
3658 if (send_direct) {
3659 ieee80211_tx_skb(sdata, skb);
3660 return 0;
3661 }
3662
3663 /*
3664 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3665 * we should default to AC_VI.
3666 */
3667 switch (action_code) {
3668 case WLAN_TDLS_SETUP_REQUEST:
3669 case WLAN_TDLS_SETUP_RESPONSE:
3670 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3671 skb->priority = 2;
3672 break;
3673 default:
3674 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3675 skb->priority = 5;
3676 break;
3677 }
3678
3679 /* disable bottom halves when entering the Tx path */
3680 local_bh_disable();
3681 ret = ieee80211_subif_start_xmit(skb, dev);
3682 local_bh_enable();
3683
3684 return ret;
3685
3686fail:
3687 dev_kfree_skb(skb);
3688 return ret;
3689}
3690
3691static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3692 u8 *peer, enum nl80211_tdls_operation oper)
3693{
941c93cd 3694 struct sta_info *sta;
dfe018bf
AN		 3695 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3696
3697 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3698 return -ENOTSUPP;
3699
3700 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3701 return -EINVAL;
3702
bdcbd8e0 3703 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
dfe018bf
AN		 3704
3705 switch (oper) {
3706 case NL80211_TDLS_ENABLE_LINK:
941c93cd
AN		 3707 rcu_read_lock();
3708 sta = sta_info_get(sdata, peer);
3709 if (!sta) {
3710 rcu_read_unlock();
3711 return -ENOLINK;
3712 }
3713
c2c98fde 3714 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
941c93cd 3715 rcu_read_unlock();
dfe018bf
AN		 3716 break;
3717 case NL80211_TDLS_DISABLE_LINK:
3718 return sta_info_destroy_addr(sdata, peer);
3719 case NL80211_TDLS_TEARDOWN:
3720 case NL80211_TDLS_SETUP:
3721 case NL80211_TDLS_DISCOVERY_REQ:
3722 /* We don't support in-driver setup/teardown/discovery */
3723 return -ENOTSUPP;
3724 default:
3725 return -ENOTSUPP;
3726 }
3727
3728 return 0;
3729}
3730
06500736
JB		 3731static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3732 const u8 *peer, u64 *cookie)
3733{
3734 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3735 struct ieee80211_local *local = sdata->local;
3736 struct ieee80211_qos_hdr *nullfunc;
3737 struct sk_buff *skb;
3738 int size = sizeof(*nullfunc);
3739 __le16 fc;
3740 bool qos;
3741 struct ieee80211_tx_info *info;
3742 struct sta_info *sta;
55de908a
JB		 3743 struct ieee80211_chanctx_conf *chanctx_conf;
3744 enum ieee80211_band band;
06500736
JB		 3745
3746 rcu_read_lock();
55de908a
JB		 3747 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3748 if (WARN_ON(!chanctx_conf)) {
3749 rcu_read_unlock();
3750 return -EINVAL;
3751 }
4bf88530 3752 band = chanctx_conf->def.chan->band;
03bb7f42 3753 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3754 if (sta) {
06500736 3755 qos = test_sta_flag(sta, WLAN_STA_WME);
b4487c2d
JB		 3756 } else {
3757 rcu_read_unlock();
06500736 3758 return -ENOLINK;
b4487c2d 3759 }
06500736
JB		 3760
3761 if (qos) {
3762 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3763 IEEE80211_STYPE_QOS_NULLFUNC |
3764 IEEE80211_FCTL_FROMDS);
3765 } else {
3766 size -= 2;
3767 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3768 IEEE80211_STYPE_NULLFUNC |
3769 IEEE80211_FCTL_FROMDS);
3770 }
3771
3772 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a
JB		 3773 if (!skb) {
3774 rcu_read_unlock();
06500736 3775 return -ENOMEM;
55de908a 3776 }
06500736
JB		 3777
3778 skb->dev = dev;
3779
3780 skb_reserve(skb, local->hw.extra_tx_headroom);
3781
3782 nullfunc = (void *) skb_put(skb, size);
3783 nullfunc->frame_control = fc;
3784 nullfunc->duration_id = 0;
3785 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3786 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3787 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3788 nullfunc->seq_ctrl = 0;
3789
3790 info = IEEE80211_SKB_CB(skb);
3791
3792 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3793 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3794
3795 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3796 skb->priority = 7;
3797 if (qos)
3798 nullfunc->qos_ctrl = cpu_to_le16(7);
3799
3800 local_bh_disable();
55de908a 3801 ieee80211_xmit(sdata, skb, band);
06500736 3802 local_bh_enable();
55de908a 3803 rcu_read_unlock();
06500736
JB		 3804
3805 *cookie = (unsigned long) skb;
3806 return 0;
3807}
3808
683b6d3b
JB		 3809static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3810 struct wireless_dev *wdev,
3811 struct cfg80211_chan_def *chandef)
5b7ccaf3 3812{
55de908a 3813 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3814 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3815 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3816 int ret = -ENODATA;
55de908a
JB		 3817
3818 rcu_read_lock();
feda3027
JB		 3819 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3820 if (chanctx_conf) {
3821 *chandef = chanctx_conf->def;
3822 ret = 0;
3823 } else if (local->open_count > 0 &&
3824 local->open_count == local->monitors &&
3825 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3826 if (local->use_chanctx)
3827 *chandef = local->monitor_chandef;
3828 else
675a0b04 3829 *chandef = local->_oper_chandef;
683b6d3b 3830 ret = 0;
55de908a
JB		 3831 }
3832 rcu_read_unlock();
5b7ccaf3 3833
683b6d3b 3834 return ret;
5b7ccaf3
JB		 3835}
3836
6d52563f
JB		 3837#ifdef CONFIG_PM
3838static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3839{
3840 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3841}
3842#endif
3843
32db6b54
KP		 3844static int ieee80211_set_qos_map(struct wiphy *wiphy,
3845 struct net_device *dev,
3846 struct cfg80211_qos_map *qos_map)
3847{
3848 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3849 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3850
3851 if (qos_map) {
3852 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3853 if (!new_qos_map)
3854 return -ENOMEM;
3855 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3856 } else {
3857 /* A NULL qos_map was passed to disable QoS mapping */
3858 new_qos_map = NULL;
3859 }
3860
194ff52d 3861 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3862 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3863 if (old_qos_map)
3864 kfree_rcu(old_qos_map, rcu_head);
3865
3866 return 0;
3867}
3868
f0706e82
JB		 3869struct cfg80211_ops mac80211_config_ops = {
3870 .add_virtual_intf = ieee80211_add_iface,
3871 .del_virtual_intf = ieee80211_del_iface,
42613db7 3872 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3873 .start_p2p_device = ieee80211_start_p2p_device,
3874 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3875 .add_key = ieee80211_add_key,
3876 .del_key = ieee80211_del_key,
62da92fb 3877 .get_key = ieee80211_get_key,
e8cbb4cb 3878 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3879 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3880 .start_ap = ieee80211_start_ap,
3881 .change_beacon = ieee80211_change_beacon,
3882 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3883 .add_station = ieee80211_add_station,
3884 .del_station = ieee80211_del_station,
3885 .change_station = ieee80211_change_station,
7bbdd2d9 3886 .get_station = ieee80211_get_station,
c5dd9c2b 3887 .dump_station = ieee80211_dump_station,
1289723e 3888 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3889#ifdef CONFIG_MAC80211_MESH
3890 .add_mpath = ieee80211_add_mpath,
3891 .del_mpath = ieee80211_del_mpath,
3892 .change_mpath = ieee80211_change_mpath,
3893 .get_mpath = ieee80211_get_mpath,
3894 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 3895 .update_mesh_config = ieee80211_update_mesh_config,
3896 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3897 .join_mesh = ieee80211_join_mesh,
3898 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3899#endif
9f1ba906 3900 .change_bss = ieee80211_change_bss,
31888487 3901 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3902 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3903 .suspend = ieee80211_suspend,
3904 .resume = ieee80211_resume,
2a519311 3905 .scan = ieee80211_scan,
79f460ca
LC		 3906 .sched_scan_start = ieee80211_sched_scan_start,
3907 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3908 .auth = ieee80211_auth,
3909 .assoc = ieee80211_assoc,
3910 .deauth = ieee80211_deauth,
3911 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3912 .join_ibss = ieee80211_join_ibss,
3913 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3914 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3915 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3916 .set_tx_power = ieee80211_set_tx_power,
3917 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3918 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3919 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3920 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3921 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3922 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3923 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3924 .remain_on_channel = ieee80211_remain_on_channel,
3925 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3926 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3927 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3928 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3929 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3930 .set_antenna = ieee80211_set_antenna,
3931 .get_antenna = ieee80211_get_antenna,
38c09159
JL		 3932 .set_ringparam = ieee80211_set_ringparam,
3933 .get_ringparam = ieee80211_get_ringparam,
c68f4b89 3934 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3935 .tdls_oper = ieee80211_tdls_oper,
3936 .tdls_mgmt = ieee80211_tdls_mgmt,
06500736 3937 .probe_client = ieee80211_probe_client,
b53be792 3938 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3939#ifdef CONFIG_PM
3940 .set_wakeup = ieee80211_set_wakeup,
3941#endif
b1ab7925
BG		 3942 .get_et_sset_count = ieee80211_get_et_sset_count,
3943 .get_et_stats = ieee80211_get_et_stats,
3944 .get_et_strings = ieee80211_get_et_strings,
5b7ccaf3 3945 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3946 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3947 .channel_switch = ieee80211_channel_switch,
32db6b54 3948 .set_qos_map = ieee80211_set_qos_map,
f0706e82 3949};
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