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