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mac80211: clarify TDLS Tx handling
[linux-block.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{
b6a55015
LC		 112 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
113 int ret;
114
115 mutex_lock(&sdata->local->chanctx_mtx);
116 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
117 mutex_unlock(&sdata->local->chanctx_mtx);
118 if (ret < 0)
119 return ret;
120
f142c6b9
JB		 121 return ieee80211_do_open(wdev, true);
122}
123
124static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
125 struct wireless_dev *wdev)
126{
127 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
128}
129
b53be792
SW		 130static int ieee80211_set_noack_map(struct wiphy *wiphy,
131 struct net_device *dev,
132 u16 noack_map)
133{
134 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
135
136 sdata->noack_map = noack_map;
137 return 0;
138}
139
e8cbb4cb 140static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 141 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 142 struct key_params *params)
143{
26a58456 144 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2475b1cc 145 struct ieee80211_local *local = sdata->local;
e8cbb4cb 146 struct sta_info *sta = NULL;
2475b1cc 147 const struct ieee80211_cipher_scheme *cs = NULL;
db4d1169 148 struct ieee80211_key *key;
3b96766f 149 int err;
e8cbb4cb 150
26a58456 151 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 152 return -ENETDOWN;
153
97359d12 154 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 155 switch (params->cipher) {
156 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 157 case WLAN_CIPHER_SUITE_TKIP:
97359d12 158 case WLAN_CIPHER_SUITE_WEP104:
2475b1cc 159 if (IS_ERR(local->wep_tx_tfm))
97359d12 160 return -EINVAL;
3cfcf6ac 161 break;
2475b1cc
MS		 162 case WLAN_CIPHER_SUITE_CCMP:
163 case WLAN_CIPHER_SUITE_AES_CMAC:
164 case WLAN_CIPHER_SUITE_GCMP:
165 break;
e8cbb4cb 166 default:
2475b1cc 167 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
97359d12 168 break;
e8cbb4cb
JB		 169 }
170
97359d12 171 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
2475b1cc
MS		 172 params->key, params->seq_len, params->seq,
173 cs);
1ac62ba7
BH		 174 if (IS_ERR(key))
175 return PTR_ERR(key);
db4d1169 176
e31b8213
JB		 177 if (pairwise)
178 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
179
2475b1cc 180 mutex_lock(&local->sta_mtx);
3b96766f 181
e8cbb4cb 182 if (mac_addr) {
ff973af7
TP		 183 if (ieee80211_vif_is_mesh(&sdata->vif))
184 sta = sta_info_get(sdata, mac_addr);
185 else
186 sta = sta_info_get_bss(sdata, mac_addr);
1626e0fa
JB		 187 /*
188 * The ASSOC test makes sure the driver is ready to
189 * receive the key. When wpa_supplicant has roamed
190 * using FT, it attempts to set the key before
191 * association has completed, this rejects that attempt
192 * so it will set the key again after assocation.
193 *
194 * TODO: accept the key if we have a station entry and
195 * add it to the device after the station.
196 */
197 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
79cf2dfa 198 ieee80211_key_free_unused(key);
3b96766f
JB		 199 err = -ENOENT;
200 goto out_unlock;
db4d1169 201 }
e8cbb4cb
JB		 202 }
203
e548c49e
JB		 204 switch (sdata->vif.type) {
205 case NL80211_IFTYPE_STATION:
206 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
207 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
208 break;
209 case NL80211_IFTYPE_AP:
210 case NL80211_IFTYPE_AP_VLAN:
211 /* Keys without a station are used for TX only */
212 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
213 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
214 break;
215 case NL80211_IFTYPE_ADHOC:
216 /* no MFP (yet) */
217 break;
218 case NL80211_IFTYPE_MESH_POINT:
219#ifdef CONFIG_MAC80211_MESH
220 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
221 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
222 break;
223#endif
224 case NL80211_IFTYPE_WDS:
225 case NL80211_IFTYPE_MONITOR:
226 case NL80211_IFTYPE_P2P_DEVICE:
227 case NL80211_IFTYPE_UNSPECIFIED:
228 case NUM_NL80211_IFTYPES:
229 case NL80211_IFTYPE_P2P_CLIENT:
230 case NL80211_IFTYPE_P2P_GO:
231 /* shouldn't happen */
232 WARN_ON_ONCE(1);
233 break;
234 }
235
2475b1cc
MS		 236 if (sta)
237 sta->cipher_scheme = cs;
238
3ffc2a90 239 err = ieee80211_key_link(key, sdata, sta);
db4d1169 240
3b96766f 241 out_unlock:
2475b1cc 242 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 243
244 return err;
e8cbb4cb
JB		 245}
246
247static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 248 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 249{
5c0c3641
JB		 250 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
251 struct ieee80211_local *local = sdata->local;
e8cbb4cb 252 struct sta_info *sta;
5c0c3641 253 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 254 int ret;
255
5c0c3641
JB		 256 mutex_lock(&local->sta_mtx);
257 mutex_lock(&local->key_mtx);
3b96766f 258
e8cbb4cb 259 if (mac_addr) {
3b96766f
JB		 260 ret = -ENOENT;
261
0e5ded5a 262 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 263 if (!sta)
3b96766f 264 goto out_unlock;
e8cbb4cb 265
5c0c3641 266 if (pairwise)
2475b1cc 267 key = key_mtx_dereference(local, sta->ptk[key_idx]);
5c0c3641 268 else
40b275b6 269 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 270 } else
40b275b6 271 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 272
5c0c3641 273 if (!key) {
3b96766f
JB		 274 ret = -ENOENT;
275 goto out_unlock;
276 }
e8cbb4cb 277
3b8d9c29 278 ieee80211_key_free(key, true);
e8cbb4cb 279
3b96766f
JB		 280 ret = 0;
281 out_unlock:
5c0c3641
JB		 282 mutex_unlock(&local->key_mtx);
283 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 284
285 return ret;
e8cbb4cb
JB		 286}
287
62da92fb 288static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 289 u8 key_idx, bool pairwise, const u8 *mac_addr,
290 void *cookie,
62da92fb
JB		 291 void (*callback)(void *cookie,
292 struct key_params *params))
293{
14db74bc 294 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 295 struct sta_info *sta = NULL;
296 u8 seq[6] = {0};
297 struct key_params params;
e31b8213 298 struct ieee80211_key *key = NULL;
aba83a0b 299 u64 pn64;
62da92fb
JB		 300 u32 iv32;
301 u16 iv16;
302 int err = -ENOENT;
303
14db74bc
JB		 304 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
305
3b96766f
JB		 306 rcu_read_lock();
307
62da92fb 308 if (mac_addr) {
0e5ded5a 309 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 310 if (!sta)
311 goto out;
312
354e159d 313 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
2475b1cc 314 key = rcu_dereference(sta->ptk[key_idx]);
31f1f4ec
MS		 315 else if (!pairwise &&
316 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
a3836e02 317 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 318 } else
a3836e02 319 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 320
321 if (!key)
322 goto out;
323
324 memset(&params, 0, sizeof(params));
325
97359d12 326 params.cipher = key->conf.cipher;
62da92fb 327
97359d12
JB		 328 switch (key->conf.cipher) {
329 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 330 iv32 = key->u.tkip.tx.iv32;
331 iv16 = key->u.tkip.tx.iv16;
62da92fb 332
24487981
JB		 333 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
334 drv_get_tkip_seq(sdata->local,
335 key->conf.hw_key_idx,
336 &iv32, &iv16);
62da92fb
JB		 337
338 seq[0] = iv16 & 0xff;
339 seq[1] = (iv16 >> 8) & 0xff;
340 seq[2] = iv32 & 0xff;
341 seq[3] = (iv32 >> 8) & 0xff;
342 seq[4] = (iv32 >> 16) & 0xff;
343 seq[5] = (iv32 >> 24) & 0xff;
344 params.seq = seq;
345 params.seq_len = 6;
346 break;
97359d12 347 case WLAN_CIPHER_SUITE_CCMP:
aba83a0b
JB		 348 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
349 seq[0] = pn64;
350 seq[1] = pn64 >> 8;
351 seq[2] = pn64 >> 16;
352 seq[3] = pn64 >> 24;
353 seq[4] = pn64 >> 32;
354 seq[5] = pn64 >> 40;
62da92fb
JB		 355 params.seq = seq;
356 params.seq_len = 6;
357 break;
97359d12 358 case WLAN_CIPHER_SUITE_AES_CMAC:
75396ae6
JB		 359 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
360 seq[0] = pn64;
361 seq[1] = pn64 >> 8;
362 seq[2] = pn64 >> 16;
363 seq[3] = pn64 >> 24;
364 seq[4] = pn64 >> 32;
365 seq[5] = pn64 >> 40;
3cfcf6ac
JM		 366 params.seq = seq;
367 params.seq_len = 6;
368 break;
62da92fb
JB		 369 }
370
371 params.key = key->conf.key;
372 params.key_len = key->conf.keylen;
373
374 callback(cookie, &params);
375 err = 0;
376
377 out:
3b96766f 378 rcu_read_unlock();
62da92fb
JB		 379 return err;
380}
381
e8cbb4cb
JB		 382static int ieee80211_config_default_key(struct wiphy *wiphy,
383 struct net_device *dev,
dbd2fd65
JB		 384 u8 key_idx, bool uni,
385 bool multi)
e8cbb4cb 386{
ad0e2b5a 387 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 388
f7e0104c 389 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 390
391 return 0;
392}
393
3cfcf6ac
JM		 394static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
395 struct net_device *dev,
396 u8 key_idx)
397{
66c52421 398 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 399
3cfcf6ac
JM		 400 ieee80211_set_default_mgmt_key(sdata, key_idx);
401
3cfcf6ac
JM		 402 return 0;
403}
404
6b62bf32
TP		 405void sta_set_rate_info_tx(struct sta_info *sta,
406 const struct ieee80211_tx_rate *rate,
407 struct rate_info *rinfo)
408{
409 rinfo->flags = 0;
8bc83c24 410 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 411 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 412 rinfo->mcs = rate->idx;
413 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
414 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
415 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
416 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
417 } else {
418 struct ieee80211_supported_band *sband;
2103dec1
SW		 419 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
420 u16 brate;
421
8bc83c24
JB		 422 sband = sta->local->hw.wiphy->bands[
423 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 424 brate = sband->bitrates[rate->idx].bitrate;
425 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
8bc83c24 426 }
6b62bf32
TP		 427 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
428 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
8bc83c24
JB		 429 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
430 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
431 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
432 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
6b62bf32
TP		 433 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
434 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 435}
436
003e676a
S		 437void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
438{
439 rinfo->flags = 0;
440
441 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
442 rinfo->flags |= RATE_INFO_FLAGS_MCS;
443 rinfo->mcs = sta->last_rx_rate_idx;
444 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
445 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
446 rinfo->nss = sta->last_rx_rate_vht_nss;
447 rinfo->mcs = sta->last_rx_rate_idx;
448 } else {
449 struct ieee80211_supported_band *sband;
2103dec1
SW		 450 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
451 u16 brate;
003e676a
S		 452
453 sband = sta->local->hw.wiphy->bands[
454 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 455 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
456 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
003e676a
S		 457 }
458
459 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
460 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
461 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
462 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
1b8d242a 463 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
003e676a 464 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
1b8d242a 465 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80P80MHZ)
003e676a 466 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
1b8d242a 467 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
003e676a
S		 468 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
469}
470
c5dd9c2b 471static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 472 int idx, u8 *mac, struct station_info *sinfo)
c5dd9c2b 473{
3b53fde8 474 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 475 struct ieee80211_local *local = sdata->local;
c5dd9c2b 476 struct sta_info *sta;
d0709a65
JB		 477 int ret = -ENOENT;
478
66572cfc 479 mutex_lock(&local->sta_mtx);
c5dd9c2b 480
3b53fde8 481 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 482 if (sta) {
483 ret = 0;
17741cdc 484 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 485 sta_set_sinfo(sta, sinfo);
486 }
c5dd9c2b 487
66572cfc 488 mutex_unlock(&local->sta_mtx);
c5dd9c2b 489
d0709a65 490 return ret;
c5dd9c2b
LCC		 491}
492
1289723e
HS		 493static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
494 int idx, struct survey_info *survey)
495{
496 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
497
1289723e
HS		 498 return drv_get_survey(local, idx, survey);
499}
500
7bbdd2d9 501static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 502 const u8 *mac, struct station_info *sinfo)
7bbdd2d9 503{
abe60632 504 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 505 struct ieee80211_local *local = sdata->local;
7bbdd2d9 506 struct sta_info *sta;
d0709a65 507 int ret = -ENOENT;
7bbdd2d9 508
66572cfc 509 mutex_lock(&local->sta_mtx);
7bbdd2d9 510
0e5ded5a 511 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 512 if (sta) {
513 ret = 0;
514 sta_set_sinfo(sta, sinfo);
515 }
516
66572cfc 517 mutex_unlock(&local->sta_mtx);
d0709a65
JB		 518
519 return ret;
7bbdd2d9
JB		 520}
521
55de908a 522static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
683b6d3b 523 struct cfg80211_chan_def *chandef)
3d9e6e12
JB		 524{
525 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a
JB		 526 struct ieee80211_sub_if_data *sdata;
527 int ret = 0;
3d9e6e12 528
4bf88530 529 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
55de908a 530 return 0;
3d9e6e12 531
34a3740d 532 mutex_lock(&local->mtx);
55de908a
JB		 533 mutex_lock(&local->iflist_mtx);
534 if (local->use_chanctx) {
535 sdata = rcu_dereference_protected(
536 local->monitor_sdata,
537 lockdep_is_held(&local->iflist_mtx));
538 if (sdata) {
539 ieee80211_vif_release_channel(sdata);
4bf88530 540 ret = ieee80211_vif_use_channel(sdata, chandef,
55de908a
JB		 541 IEEE80211_CHANCTX_EXCLUSIVE);
542 }
543 } else if (local->open_count == local->monitors) {
675a0b04 544 local->_oper_chandef = *chandef;
55de908a
JB		 545 ieee80211_hw_config(local, 0);
546 }
3d9e6e12 547
4bf88530
JB		 548 if (ret == 0)
549 local->monitor_chandef = *chandef;
55de908a 550 mutex_unlock(&local->iflist_mtx);
34a3740d 551 mutex_unlock(&local->mtx);
3d9e6e12 552
55de908a 553 return ret;
e8c9bd5b
JB		 554}
555
02945821 556static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 557 const u8 *resp, size_t resp_len,
558 const struct ieee80211_csa_settings *csa)
02945821 559{
aa7a0080 560 struct probe_resp *new, *old;
02945821
AN		 561
562 if (!resp || !resp_len)
aba4e6ff 563 return 1;
02945821 564
7ca133bc 565 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
02945821 566
aa7a0080 567 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
02945821
AN		 568 if (!new)
569 return -ENOMEM;
570
aa7a0080
ES		 571 new->len = resp_len;
572 memcpy(new->data, resp, resp_len);
02945821 573
af296bdb
MK		 574 if (csa)
575 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
576 csa->n_counter_offsets_presp *
577 sizeof(new->csa_counter_offsets[0]));
578
02945821 579 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
aa7a0080
ES		 580 if (old)
581 kfree_rcu(old, rcu_head);
02945821
AN		 582
583 return 0;
584}
585
0ae07968 586static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 587 struct cfg80211_beacon_data *params,
588 const struct ieee80211_csa_settings *csa)
5dfdaf58
JB		 589{
590 struct beacon_data *new, *old;
591 int new_head_len, new_tail_len;
8860020e
JB		 592 int size, err;
593 u32 changed = BSS_CHANGED_BEACON;
5dfdaf58 594
7ca133bc
SW		 595 old = sdata_dereference(sdata->u.ap.beacon, sdata);
596
5dfdaf58 597
5dfdaf58
JB		 598 /* Need to have a beacon head if we don't have one yet */
599 if (!params->head && !old)
8860020e 600 return -EINVAL;
5dfdaf58
JB		 601
602 /* new or old head? */
603 if (params->head)
604 new_head_len = params->head_len;
605 else
606 new_head_len = old->head_len;
607
608 /* new or old tail? */
609 if (params->tail || !old)
610 /* params->tail_len will be zero for !params->tail */
611 new_tail_len = params->tail_len;
612 else
613 new_tail_len = old->tail_len;
614
615 size = sizeof(*new) + new_head_len + new_tail_len;
616
617 new = kzalloc(size, GFP_KERNEL);
618 if (!new)
619 return -ENOMEM;
620
621 /* start filling the new info now */
622
5dfdaf58
JB		 623 /*
624 * pointers go into the block we allocated,
625 * memory is | beacon_data | head | tail |
626 */
627 new->head = ((u8 *) new) + sizeof(*new);
628 new->tail = new->head + new_head_len;
629 new->head_len = new_head_len;
630 new->tail_len = new_tail_len;
631
af296bdb
MK		 632 if (csa) {
633 new->csa_current_counter = csa->count;
634 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
635 csa->n_counter_offsets_beacon *
636 sizeof(new->csa_counter_offsets[0]));
637 }
638
5dfdaf58
JB		 639 /* copy in head */
640 if (params->head)
641 memcpy(new->head, params->head, new_head_len);
642 else
643 memcpy(new->head, old->head, new_head_len);
644
645 /* copy in optional tail */
646 if (params->tail)
647 memcpy(new->tail, params->tail, new_tail_len);
648 else
649 if (old)
650 memcpy(new->tail, old->tail, new_tail_len);
651
02945821 652 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
af296bdb 653 params->probe_resp_len, csa);
8860020e
JB		 654 if (err < 0)
655 return err;
656 if (err == 0)
02945821
AN		 657 changed |= BSS_CHANGED_AP_PROBE_RESP;
658
8860020e
JB		 659 rcu_assign_pointer(sdata->u.ap.beacon, new);
660
661 if (old)
662 kfree_rcu(old, rcu_head);
7827493b 663
8860020e 664 return changed;
5dfdaf58
JB		 665}
666
8860020e
JB		 667static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
668 struct cfg80211_ap_settings *params)
5dfdaf58 669{
8860020e 670 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
34a3740d 671 struct ieee80211_local *local = sdata->local;
5dfdaf58 672 struct beacon_data *old;
665c93a9 673 struct ieee80211_sub_if_data *vlan;
8860020e
JB		 674 u32 changed = BSS_CHANGED_BEACON_INT |
675 BSS_CHANGED_BEACON_ENABLED |
676 BSS_CHANGED_BEACON |
339afbf4
JB		 677 BSS_CHANGED_SSID |
678 BSS_CHANGED_P2P_PS;
8860020e 679 int err;
14db74bc 680
7ca133bc 681 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 682 if (old)
683 return -EALREADY;
684
04ecd257
JB		 685 /* TODO: make hostapd tell us what it wants */
686 sdata->smps_mode = IEEE80211_SMPS_OFF;
687 sdata->needed_rx_chains = sdata->local->rx_chains;
688
34a3740d 689 mutex_lock(&local->mtx);
4bf88530 690 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 691 IEEE80211_CHANCTX_SHARED);
4e141dad
MK		 692 if (!err)
693 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
34a3740d 694 mutex_unlock(&local->mtx);
aa430da4
JB		 695 if (err)
696 return err;
697
665c93a9
JB		 698 /*
699 * Apply control port protocol, this allows us to
700 * not encrypt dynamic WEP control frames.
701 */
702 sdata->control_port_protocol = params->crypto.control_port_ethertype;
703 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
2475b1cc
MS		 704 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
705 &params->crypto,
706 sdata->vif.type);
707
665c93a9
JB		 708 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
709 vlan->control_port_protocol =
710 params->crypto.control_port_ethertype;
711 vlan->control_port_no_encrypt =
712 params->crypto.control_port_no_encrypt;
2475b1cc
MS		 713 vlan->encrypt_headroom =
714 ieee80211_cs_headroom(sdata->local,
715 &params->crypto,
716 vlan->vif.type);
665c93a9
JB		 717 }
718
8860020e
JB		 719 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
720 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 721 sdata->vif.bss_conf.enable_beacon = true;
8860020e
JB		 722
723 sdata->vif.bss_conf.ssid_len = params->ssid_len;
724 if (params->ssid_len)
725 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
726 params->ssid_len);
727 sdata->vif.bss_conf.hidden_ssid =
728 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
729
67baf663
JD		 730 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
731 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
732 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
733 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
734 if (params->p2p_opp_ps)
735 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
736 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 737
af296bdb 738 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
0297ea17
EG		 739 if (err < 0) {
740 ieee80211_vif_release_channel(sdata);
8860020e 741 return err;
0297ea17 742 }
8860020e
JB		 743 changed |= err;
744
1041638f
JB		 745 err = drv_start_ap(sdata->local, sdata);
746 if (err) {
7ca133bc
SW		 747 old = sdata_dereference(sdata->u.ap.beacon, sdata);
748
1041638f
JB		 749 if (old)
750 kfree_rcu(old, rcu_head);
751 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
0297ea17 752 ieee80211_vif_release_channel(sdata);
1041638f
JB		 753 return err;
754 }
755
057d5f4b 756 ieee80211_recalc_dtim(local, sdata);
8860020e
JB		 757 ieee80211_bss_info_change_notify(sdata, changed);
758
3edaf3e6
JB		 759 netif_carrier_on(dev);
760 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
761 netif_carrier_on(vlan->dev);
762
665c93a9 763 return 0;
5dfdaf58
JB		 764}
765
8860020e
JB		 766static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
767 struct cfg80211_beacon_data *params)
5dfdaf58 768{
14db74bc 769 struct ieee80211_sub_if_data *sdata;
5dfdaf58 770 struct beacon_data *old;
8860020e 771 int err;
5dfdaf58 772
14db74bc 773 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
dbd72850 774 sdata_assert_lock(sdata);
14db74bc 775
73da7d5b
SW		 776 /* don't allow changing the beacon while CSA is in place - offset
777 * of channel switch counter may change
778 */
779 if (sdata->vif.csa_active)
780 return -EBUSY;
781
7ca133bc 782 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 783 if (!old)
784 return -ENOENT;
785
af296bdb 786 err = ieee80211_assign_beacon(sdata, params, NULL);
8860020e
JB		 787 if (err < 0)
788 return err;
789 ieee80211_bss_info_change_notify(sdata, err);
790 return 0;
5dfdaf58
JB		 791}
792
8860020e 793static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 794{
7b20b8e8
JB		 795 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
796 struct ieee80211_sub_if_data *vlan;
797 struct ieee80211_local *local = sdata->local;
798 struct beacon_data *old_beacon;
799 struct probe_resp *old_probe_resp;
d2859df5 800 struct cfg80211_chan_def chandef;
14db74bc 801
dbd72850
MK		 802 sdata_assert_lock(sdata);
803
7ca133bc 804 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 805 if (!old_beacon)
5dfdaf58 806 return -ENOENT;
7ca133bc 807 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 808
73da7d5b 809 /* abort any running channel switch */
59af6928 810 mutex_lock(&local->mtx);
73da7d5b 811 sdata->vif.csa_active = false;
a46992b4
LC		 812 if (sdata->csa_block_tx) {
813 ieee80211_wake_vif_queues(local, sdata,
814 IEEE80211_QUEUE_STOP_REASON_CSA);
815 sdata->csa_block_tx = false;
816 }
817
59af6928
MK		 818 mutex_unlock(&local->mtx);
819
1f3b8a2b
SW		 820 kfree(sdata->u.ap.next_beacon);
821 sdata->u.ap.next_beacon = NULL;
822
7b20b8e8 823 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 824 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
825 netif_carrier_off(vlan->dev);
826 netif_carrier_off(dev);
827
7b20b8e8 828 /* remove beacon and probe response */
a9b3cd7f 829 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 830 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
831 kfree_rcu(old_beacon, rcu_head);
832 if (old_probe_resp)
833 kfree_rcu(old_probe_resp, rcu_head);
8ffcc704 834 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
8860020e 835
e716251d 836 __sta_info_flush(sdata, true);
7907c7d3 837 ieee80211_free_keys(sdata, true);
75de9113 838
d6a83228 839 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 840 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 841 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 842 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 843
a6b368f6 844 if (sdata->wdev.cac_started) {
d2859df5 845 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 846 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 847 cfg80211_cac_event(sdata->dev, &chandef,
848 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 849 GFP_KERNEL);
850 }
851
1041638f
JB		 852 drv_stop_ap(sdata->local, sdata);
853
7b20b8e8
JB		 854 /* free all potentially still buffered bcast frames */
855 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
856 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
857
34a3740d 858 mutex_lock(&local->mtx);
4e141dad 859 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a 860 ieee80211_vif_release_channel(sdata);
34a3740d 861 mutex_unlock(&local->mtx);
55de908a 862
2d0ddec5 863 return 0;
5dfdaf58
JB		 864}
865
4fd6931e
JB		 866/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
867struct iapp_layer2_update {
868 u8 da[ETH_ALEN]; /* broadcast */
869 u8 sa[ETH_ALEN]; /* STA addr */
870 __be16 len; /* 6 */
871 u8 dsap; /* 0 */
872 u8 ssap; /* 0 */
873 u8 control;
874 u8 xid_info[3];
bc10502d 875} __packed;
4fd6931e
JB		 876
877static void ieee80211_send_layer2_update(struct sta_info *sta)
878{
879 struct iapp_layer2_update *msg;
880 struct sk_buff *skb;
881
882 /* Send Level 2 Update Frame to update forwarding tables in layer 2
883 * bridge devices */
884
885 skb = dev_alloc_skb(sizeof(*msg));
886 if (!skb)
887 return;
888 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
889
890 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
891 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
892
e83e6541 893 eth_broadcast_addr(msg->da);
17741cdc 894 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 895 msg->len = htons(6);
896 msg->dsap = 0;
897 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
898 msg->control = 0xaf; /* XID response lsb.1111F101.
899 * F=0 (no poll command; unsolicited frame) */
900 msg->xid_info[0] = 0x81; /* XID format identifier */
901 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
902 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
903
d0709a65
JB		 904 skb->dev = sta->sdata->dev;
905 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 906 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 907 netif_rx_ni(skb);
4fd6931e
JB		 908}
909
d582cffb
JB		 910static int sta_apply_auth_flags(struct ieee80211_local *local,
911 struct sta_info *sta,
912 u32 mask, u32 set)
913{
914 int ret;
915
916 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
917 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
918 !test_sta_flag(sta, WLAN_STA_AUTH)) {
919 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
920 if (ret)
921 return ret;
922 }
923
924 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
925 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
926 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
927 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
928 if (ret)
929 return ret;
930 }
931
932 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
933 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
934 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
935 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
936 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
937 else
938 ret = 0;
939 if (ret)
940 return ret;
941 }
942
943 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
944 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
945 test_sta_flag(sta, WLAN_STA_ASSOC)) {
946 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
947 if (ret)
948 return ret;
949 }
950
951 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
952 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
953 test_sta_flag(sta, WLAN_STA_AUTH)) {
954 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
955 if (ret)
956 return ret;
957 }
958
959 return 0;
960}
961
d9a7ddb0
JB		 962static int sta_apply_parameters(struct ieee80211_local *local,
963 struct sta_info *sta,
964 struct station_parameters *params)
4fd6931e 965{
d9a7ddb0 966 int ret = 0;
8318d78a 967 struct ieee80211_supported_band *sband;
d0709a65 968 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 969 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 970 u32 mask, set;
4fd6931e 971
55de908a 972 sband = local->hw.wiphy->bands[band];
ae5eb026 973
eccb8e8f
JB		 974 mask = params->sta_flags_mask;
975 set = params->sta_flags_set;
73651ee6 976
d582cffb
JB		 977 if (ieee80211_vif_is_mesh(&sdata->vif)) {
978 /*
979 * In mesh mode, ASSOCIATED isn't part of the nl80211
980 * API but must follow AUTHENTICATED for driver state.
981 */
982 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
983 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
984 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
985 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 986 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
987 /*
988 * TDLS -- everything follows authorized, but
989 * only becoming authorized is possible, not
990 * going back
991 */
992 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
993 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
994 BIT(NL80211_STA_FLAG_ASSOCIATED);
995 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
996 BIT(NL80211_STA_FLAG_ASSOCIATED);
997 }
eccb8e8f 998 }
4fd6931e 999
d582cffb
JB		 1000 ret = sta_apply_auth_flags(local, sta, mask, set);
1001 if (ret)
1002 return ret;
d9a7ddb0 1003
eccb8e8f 1004 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1005 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1006 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1007 else
1008 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1009 }
4fd6931e 1010
eccb8e8f 1011 if (mask & BIT(NL80211_STA_FLAG_WME)) {
39df600a 1012 if (set & BIT(NL80211_STA_FLAG_WME)) {
c2c98fde 1013 set_sta_flag(sta, WLAN_STA_WME);
39df600a 1014 sta->sta.wme = true;
c2c98fde
JB		 1015 } else {
1016 clear_sta_flag(sta, WLAN_STA_WME);
1017 sta->sta.wme = false;
39df600a 1018 }
eccb8e8f 1019 }
5394af4d 1020
eccb8e8f 1021 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1022 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1023 set_sta_flag(sta, WLAN_STA_MFP);
1024 else
1025 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1026 }
b39c48fa 1027
07ba55d7 1028 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1029 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1030 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1031 else
1032 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1033 }
4fd6931e 1034
3b9ce80c
JB		 1035 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1036 sta->sta.uapsd_queues = params->uapsd_queues;
1037 sta->sta.max_sp = params->max_sp;
1038 }
9533b4ac 1039
51b50fbe
JB		 1040 /*
1041 * cfg80211 validates this (1-2007) and allows setting the AID
1042 * only when creating a new station entry
1043 */
1044 if (params->aid)
1045 sta->sta.aid = params->aid;
1046
73651ee6 1047 /*
ba23d206
JB		 1048 * Some of the following updates would be racy if called on an
1049 * existing station, via ieee80211_change_station(). However,
1050 * all such changes are rejected by cfg80211 except for updates
1051 * changing the supported rates on an existing but not yet used
1052 * TDLS peer.
73651ee6
JB		 1053 */
1054
4fd6931e
JB		 1055 if (params->listen_interval >= 0)
1056 sta->listen_interval = params->listen_interval;
1057
1058 if (params->supported_rates) {
2103dec1
SW		 1059 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1060 sband, params->supported_rates,
1061 params->supported_rates_len,
1062 &sta->sta.supp_rates[band]);
4fd6931e 1063 }
c5dd9c2b 1064
d9fe60de 1065 if (params->ht_capa)
ef96a842 1066 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1067 params->ht_capa, sta);
36aedc90 1068
f461be3e
MP		 1069 if (params->vht_capa)
1070 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1071 params->vht_capa, sta);
f461be3e 1072
b1bce14a 1073 if (params->opmode_notif_used) {
b1bce14a
MK		 1074 /* returned value is only needed for rc update, but the
1075 * rc isn't initialized here yet, so ignore it
1076 */
1077 __ieee80211_vht_handle_opmode(sdata, sta,
1078 params->opmode_notif,
1079 band, false);
1080 }
1081
9c3990aa 1082 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1083#ifdef CONFIG_MAC80211_MESH
39886b61 1084 u32 changed = 0;
77ee7c89
JB		 1085
1086 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1087 switch (params->plink_state) {
57cf8043 1088 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1089 if (sta->plink_state != NL80211_PLINK_ESTAB)
1090 changed = mesh_plink_inc_estab_count(
1091 sdata);
1092 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1093
1094 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1095 changed |= ieee80211_mps_set_sta_local_pm(sta,
1096 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1097 break;
1098 case NL80211_PLINK_LISTEN:
57cf8043 1099 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1100 case NL80211_PLINK_OPN_SNT:
1101 case NL80211_PLINK_OPN_RCVD:
1102 case NL80211_PLINK_CNF_RCVD:
1103 case NL80211_PLINK_HOLDING:
1104 if (sta->plink_state == NL80211_PLINK_ESTAB)
1105 changed = mesh_plink_dec_estab_count(
1106 sdata);
9c3990aa 1107 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1108
1109 ieee80211_mps_sta_status_update(sta);
446075d7
MP		 1110 changed |= ieee80211_mps_set_sta_local_pm(sta,
1111 NL80211_MESH_POWER_UNKNOWN);
9c3990aa
JC		 1112 break;
1113 default:
1114 /* nothing */
1115 break;
1116 }
77ee7c89
JB		 1117 }
1118
1119 switch (params->plink_action) {
1120 case NL80211_PLINK_ACTION_NO_ACTION:
1121 /* nothing */
1122 break;
1123 case NL80211_PLINK_ACTION_OPEN:
1124 changed |= mesh_plink_open(sta);
1125 break;
1126 case NL80211_PLINK_ACTION_BLOCK:
1127 changed |= mesh_plink_block(sta);
1128 break;
1617bab8 1129 }
3f52b7e3
MP		 1130
1131 if (params->local_pm)
39886b61
TP		 1132 changed |=
1133 ieee80211_mps_set_sta_local_pm(sta,
1134 params->local_pm);
6c751ef8 1135 ieee80211_mbss_info_change_notify(sdata, changed);
4daf50f2 1136#endif
902acc78 1137 }
d9a7ddb0
JB		 1138
1139 return 0;
4fd6931e
JB		 1140}
1141
1142static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1143 const u8 *mac,
1144 struct station_parameters *params)
4fd6931e 1145{
14db74bc 1146 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1147 struct sta_info *sta;
1148 struct ieee80211_sub_if_data *sdata;
73651ee6 1149 int err;
b8d476c8 1150 int layer2_update;
4fd6931e 1151
4fd6931e
JB		 1152 if (params->vlan) {
1153 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1154
05c914fe
JB		 1155 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1156 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1157 return -EINVAL;
1158 } else
1159 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1160
b203ca39 1161 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1162 return -EINVAL;
1163
1164 if (is_multicast_ether_addr(mac))
1165 return -EINVAL;
1166
1167 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1168 if (!sta)
1169 return -ENOMEM;
4fd6931e 1170
d582cffb
JB		 1171 /*
1172 * defaults -- if userspace wants something else we'll
1173 * change it accordingly in sta_apply_parameters()
1174 */
77ee7c89
JB		 1175 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1176 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1177 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
0c4972cc
AN		 1178 } else {
1179 sta->sta.tdls = true;
77ee7c89 1180 }
4fd6931e 1181
d9a7ddb0
JB		 1182 err = sta_apply_parameters(local, sta, params);
1183 if (err) {
1184 sta_info_free(local, sta);
1185 return err;
1186 }
4fd6931e 1187
d64cf63e 1188 /*
77ee7c89
JB		 1189 * for TDLS, rate control should be initialized only when
1190 * rates are known and station is marked authorized
d64cf63e
AN		 1191 */
1192 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1193 rate_control_rate_init(sta);
4fd6931e 1194
b8d476c8
JM		 1195 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1196 sdata->vif.type == NL80211_IFTYPE_AP;
1197
34e89507 1198 err = sta_info_insert_rcu(sta);
73651ee6 1199 if (err) {
73651ee6
JB		 1200 rcu_read_unlock();
1201 return err;
1202 }
1203
b8d476c8 1204 if (layer2_update)
73651ee6
JB		 1205 ieee80211_send_layer2_update(sta);
1206
1207 rcu_read_unlock();
1208
4fd6931e
JB		 1209 return 0;
1210}
1211
1212static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1213 const u8 *mac)
4fd6931e 1214{
14db74bc 1215 struct ieee80211_sub_if_data *sdata;
4fd6931e 1216
14db74bc
JB		 1217 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1218
34e89507
JB		 1219 if (mac)
1220 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 1221
b998e8bb 1222 sta_info_flush(sdata);
4fd6931e
JB		 1223 return 0;
1224}
1225
1226static int ieee80211_change_station(struct wiphy *wiphy,
3b3a0162 1227 struct net_device *dev, const u8 *mac,
4fd6931e
JB		 1228 struct station_parameters *params)
1229{
abe60632 1230 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1231 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1232 struct sta_info *sta;
1233 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1234 enum cfg80211_station_type statype;
35b88623 1235 int err;
4fd6931e 1236
87be1e1e 1237 mutex_lock(&local->sta_mtx);
98dd6a57 1238
0e5ded5a 1239 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1240 if (!sta) {
77ee7c89
JB		 1241 err = -ENOENT;
1242 goto out_err;
98dd6a57 1243 }
4fd6931e 1244
77ee7c89
JB		 1245 switch (sdata->vif.type) {
1246 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1247 if (sdata->u.mesh.user_mpm)
eef941e6 1248 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1249 else
eef941e6 1250 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1251 break;
1252 case NL80211_IFTYPE_ADHOC:
1253 statype = CFG80211_STA_IBSS;
1254 break;
1255 case NL80211_IFTYPE_STATION:
1256 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1257 statype = CFG80211_STA_AP_STA;
1258 break;
1259 }
1260 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1261 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1262 else
1263 statype = CFG80211_STA_TDLS_PEER_SETUP;
1264 break;
1265 case NL80211_IFTYPE_AP:
1266 case NL80211_IFTYPE_AP_VLAN:
1267 statype = CFG80211_STA_AP_CLIENT;
1268 break;
1269 default:
1270 err = -EOPNOTSUPP;
1271 goto out_err;
bdd90d5e
JB		 1272 }
1273
77ee7c89
JB		 1274 err = cfg80211_check_station_change(wiphy, params, statype);
1275 if (err)
1276 goto out_err;
1277
d0709a65 1278 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1279 bool prev_4addr = false;
1280 bool new_4addr = false;
1281
4fd6931e
JB		 1282 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1283
9bc383de 1284 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1285 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1286 err = -EBUSY;
1287 goto out_err;
3305443c 1288 }
f14543ee 1289
cf778b00 1290 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1291 new_4addr = true;
1292 }
1293
1294 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1295 sta->sdata->u.vlan.sta) {
0c2bef46 1296 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
7e3ed02c 1297 prev_4addr = true;
f14543ee
FF		 1298 }
1299
14db74bc 1300 sta->sdata = vlansdata;
7e3ed02c
FF		 1301
1302 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1303 prev_4addr != new_4addr) {
1304 if (new_4addr)
1305 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1306 else
1307 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1308 }
1309
4fd6931e
JB		 1310 ieee80211_send_layer2_update(sta);
1311 }
1312
35b88623 1313 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1314 if (err)
1315 goto out_err;
4fd6931e 1316
77ee7c89
JB		 1317 /* When peer becomes authorized, init rate control as well */
1318 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1319 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
d64cf63e
AN		 1320 rate_control_rate_init(sta);
1321
87be1e1e 1322 mutex_unlock(&local->sta_mtx);
98dd6a57 1323
687da132
EG		 1324 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1325 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1326 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1327 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1328 sta_info_tx_streams(sta) != 1) {
1329 ht_dbg(sta->sdata,
1330 "%pM just authorized and MIMO capable - update SMPS\n",
1331 sta->sta.addr);
1332 ieee80211_send_smps_action(sta->sdata,
1333 sta->sdata->bss->req_smps,
1334 sta->sta.addr,
1335 sta->sdata->vif.bss_conf.bssid);
1336 }
1337
808118cb 1338 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1339 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1340 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1341 ieee80211_recalc_ps_vif(sdata);
1342 }
77ee7c89 1343
4fd6931e 1344 return 0;
77ee7c89
JB		 1345out_err:
1346 mutex_unlock(&local->sta_mtx);
1347 return err;
4fd6931e
JB		 1348}
1349
c5dd9c2b
LCC		 1350#ifdef CONFIG_MAC80211_MESH
1351static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1352 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1353{
14db74bc 1354 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1355 struct mesh_path *mpath;
1356 struct sta_info *sta;
c5dd9c2b 1357
14db74bc
JB		 1358 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1359
d0709a65 1360 rcu_read_lock();
abe60632 1361 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1362 if (!sta) {
1363 rcu_read_unlock();
c5dd9c2b 1364 return -ENOENT;
d0709a65 1365 }
c5dd9c2b 1366
ae76eef0
BC		 1367 mpath = mesh_path_add(sdata, dst);
1368 if (IS_ERR(mpath)) {
d0709a65 1369 rcu_read_unlock();
ae76eef0 1370 return PTR_ERR(mpath);
d0709a65 1371 }
c5dd9c2b 1372
c5dd9c2b 1373 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1374
c5dd9c2b
LCC		 1375 rcu_read_unlock();
1376 return 0;
1377}
1378
1379static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1380 const u8 *dst)
c5dd9c2b 1381{
f698d856
JBG		 1382 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1383
c5dd9c2b 1384 if (dst)
bf7cd94d 1385 return mesh_path_del(sdata, dst);
c5dd9c2b 1386
ece1a2e7 1387 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1388 return 0;
1389}
1390
3b3a0162
JB		 1391static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1392 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1393{
14db74bc 1394 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1395 struct mesh_path *mpath;
1396 struct sta_info *sta;
1397
14db74bc
JB		 1398 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1399
d0709a65
JB		 1400 rcu_read_lock();
1401
abe60632 1402 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1403 if (!sta) {
1404 rcu_read_unlock();
c5dd9c2b 1405 return -ENOENT;
d0709a65 1406 }
c5dd9c2b 1407
bf7cd94d 1408 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1409 if (!mpath) {
1410 rcu_read_unlock();
c5dd9c2b
LCC		 1411 return -ENOENT;
1412 }
1413
1414 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1415
c5dd9c2b
LCC		 1416 rcu_read_unlock();
1417 return 0;
1418}
1419
1420static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1421 struct mpath_info *pinfo)
1422{
a3836e02
JB		 1423 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1424
1425 if (next_hop_sta)
1426 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1427 else
1428 memset(next_hop, 0, ETH_ALEN);
1429
7ce8c7a3
LAYS		 1430 memset(pinfo, 0, sizeof(*pinfo));
1431
f5ea9120
JB		 1432 pinfo->generation = mesh_paths_generation;
1433
c5dd9c2b 1434 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1435 MPATH_INFO_SN |
c5dd9c2b
LCC		 1436 MPATH_INFO_METRIC |
1437 MPATH_INFO_EXPTIME |
1438 MPATH_INFO_DISCOVERY_TIMEOUT |
1439 MPATH_INFO_DISCOVERY_RETRIES |
1440 MPATH_INFO_FLAGS;
1441
1442 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1443 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1444 pinfo->metric = mpath->metric;
1445 if (time_before(jiffies, mpath->exp_time))
1446 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1447 pinfo->discovery_timeout =
1448 jiffies_to_msecs(mpath->discovery_timeout);
1449 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1450 if (mpath->flags & MESH_PATH_ACTIVE)
1451 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1452 if (mpath->flags & MESH_PATH_RESOLVING)
1453 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1454 if (mpath->flags & MESH_PATH_SN_VALID)
1455 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1456 if (mpath->flags & MESH_PATH_FIXED)
1457 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1458 if (mpath->flags & MESH_PATH_RESOLVED)
1459 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1460}
1461
1462static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1463 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1464
1465{
14db74bc 1466 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1467 struct mesh_path *mpath;
1468
14db74bc
JB		 1469 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1470
c5dd9c2b 1471 rcu_read_lock();
bf7cd94d 1472 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1473 if (!mpath) {
1474 rcu_read_unlock();
1475 return -ENOENT;
1476 }
1477 memcpy(dst, mpath->dst, ETH_ALEN);
1478 mpath_set_pinfo(mpath, next_hop, pinfo);
1479 rcu_read_unlock();
1480 return 0;
1481}
1482
1483static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1484 int idx, u8 *dst, u8 *next_hop,
1485 struct mpath_info *pinfo)
c5dd9c2b 1486{
14db74bc 1487 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1488 struct mesh_path *mpath;
1489
14db74bc
JB		 1490 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1491
c5dd9c2b 1492 rcu_read_lock();
bf7cd94d 1493 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1494 if (!mpath) {
1495 rcu_read_unlock();
1496 return -ENOENT;
1497 }
1498 memcpy(dst, mpath->dst, ETH_ALEN);
1499 mpath_set_pinfo(mpath, next_hop, pinfo);
1500 rcu_read_unlock();
1501 return 0;
1502}
93da9cc1 1503
24bdd9f4 1504static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1505 struct net_device *dev,
1506 struct mesh_config *conf)
1507{
1508 struct ieee80211_sub_if_data *sdata;
1509 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1510
93da9cc1 1511 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1512 return 0;
1513}
1514
1515static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1516{
1517 return (mask >> (parm-1)) & 0x1;
1518}
1519
c80d545d
JC		 1520static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1521 const struct mesh_setup *setup)
1522{
1523 u8 *new_ie;
1524 const u8 *old_ie;
4bb62344
CYY		 1525 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1526 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1527
581a8b0f 1528 /* allocate information elements */
c80d545d 1529 new_ie = NULL;
581a8b0f 1530 old_ie = ifmsh->ie;
c80d545d 1531
581a8b0f
JC		 1532 if (setup->ie_len) {
1533 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1534 GFP_KERNEL);
1535 if (!new_ie)
1536 return -ENOMEM;
1537 }
581a8b0f
JC		 1538 ifmsh->ie_len = setup->ie_len;
1539 ifmsh->ie = new_ie;
1540 kfree(old_ie);
c80d545d
JC		 1541
1542 /* now copy the rest of the setup parameters */
1543 ifmsh->mesh_id_len = setup->mesh_id_len;
1544 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1545 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1546 ifmsh->mesh_pp_id = setup->path_sel_proto;
1547 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1548 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1549 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1550 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1551 if (setup->is_authenticated)
1552 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1553 if (setup->is_secure)
1554 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1555
4bb62344
CYY		 1556 /* mcast rate setting in Mesh Node */
1557 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1558 sizeof(setup->mcast_rate));
ffb3cf30 1559 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1560
9bdbf04d
MP		 1561 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1562 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1563
c80d545d
JC		 1564 return 0;
1565}
1566
24bdd9f4 1567static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1568 struct net_device *dev, u32 mask,
1569 const struct mesh_config *nconf)
93da9cc1 1570{
1571 struct mesh_config *conf;
1572 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1573 struct ieee80211_if_mesh *ifmsh;
1574
93da9cc1 1575 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1576 ifmsh = &sdata->u.mesh;
93da9cc1 1577
93da9cc1 1578 /* Set the config options which we are interested in setting */
1579 conf = &(sdata->u.mesh.mshcfg);
1580 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1581 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1582 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1583 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1584 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1585 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1586 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1587 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1588 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1589 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1590 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1591 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1592 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1593 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1594 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1595 if (ifmsh->user_mpm)
1596 return -EBUSY;
93da9cc1 1597 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1598 }
d299a1f2
JC		 1599 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1600 conf->dot11MeshNbrOffsetMaxNeighbor =
1601 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1602 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1603 conf->dot11MeshHWMPmaxPREQretries =
1604 nconf->dot11MeshHWMPmaxPREQretries;
1605 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1606 conf->path_refresh_time = nconf->path_refresh_time;
1607 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1608 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1609 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1610 conf->dot11MeshHWMPactivePathTimeout =
1611 nconf->dot11MeshHWMPactivePathTimeout;
1612 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1613 conf->dot11MeshHWMPpreqMinInterval =
1614 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1615 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1616 conf->dot11MeshHWMPperrMinInterval =
1617 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1618 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1619 mask))
1620 conf->dot11MeshHWMPnetDiameterTraversalTime =
1621 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1622 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1623 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1624 ieee80211_mesh_root_setup(ifmsh);
1625 }
16dd7267 1626 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1627 /* our current gate announcement implementation rides on root
1628 * announcements, so require this ifmsh to also be a root node
1629 * */
1630 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1631 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1632 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1633 ieee80211_mesh_root_setup(ifmsh);
1634 }
16dd7267
JC		 1635 conf->dot11MeshGateAnnouncementProtocol =
1636 nconf->dot11MeshGateAnnouncementProtocol;
1637 }
a4f606ea 1638 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1639 conf->dot11MeshHWMPRannInterval =
1640 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1641 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1642 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1643 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1644 /* our RSSI threshold implementation is supported only for
1645 * devices that report signal in dBm.
1646 */
1647 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1648 return -ENOTSUPP;
1649 conf->rssi_threshold = nconf->rssi_threshold;
1650 }
70c33eaa
AN		 1651 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1652 conf->ht_opmode = nconf->ht_opmode;
1653 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1654 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1655 }
ac1073a6
CYY		 1656 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1657 conf->dot11MeshHWMPactivePathToRootTimeout =
1658 nconf->dot11MeshHWMPactivePathToRootTimeout;
1659 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1660 conf->dot11MeshHWMProotInterval =
1661 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1662 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1663 conf->dot11MeshHWMPconfirmationInterval =
1664 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1665 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1666 conf->power_mode = nconf->power_mode;
1667 ieee80211_mps_local_status_update(sdata);
1668 }
2b5e1967 1669 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1670 conf->dot11MeshAwakeWindowDuration =
1671 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1672 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1673 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1674 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1675 return 0;
1676}
1677
29cbe68c
JB		 1678static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1679 const struct mesh_config *conf,
1680 const struct mesh_setup *setup)
1681{
1682 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1683 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1684 int err;
29cbe68c 1685
c80d545d
JC		 1686 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1687 err = copy_mesh_setup(ifmsh, setup);
1688 if (err)
1689 return err;
cc1d2806 1690
04ecd257
JB		 1691 /* can mesh use other SMPS modes? */
1692 sdata->smps_mode = IEEE80211_SMPS_OFF;
1693 sdata->needed_rx_chains = sdata->local->rx_chains;
1694
34a3740d 1695 mutex_lock(&sdata->local->mtx);
4bf88530 1696 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1697 IEEE80211_CHANCTX_SHARED);
34a3740d 1698 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1699 if (err)
1700 return err;
1701
2b5e1967 1702 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1703}
1704
1705static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1706{
1707 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1708
1709 ieee80211_stop_mesh(sdata);
34a3740d 1710 mutex_lock(&sdata->local->mtx);
55de908a 1711 ieee80211_vif_release_channel(sdata);
34a3740d 1712 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1713
1714 return 0;
1715}
c5dd9c2b
LCC		 1716#endif
1717
9f1ba906
JM		 1718static int ieee80211_change_bss(struct wiphy *wiphy,
1719 struct net_device *dev,
1720 struct bss_parameters *params)
1721{
55de908a
JB		 1722 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1723 enum ieee80211_band band;
9f1ba906
JM		 1724 u32 changed = 0;
1725
7ca133bc 1726 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1727 return -ENOENT;
1728
1729 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1730
9f1ba906 1731 if (params->use_cts_prot >= 0) {
bda3933a 1732 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1733 changed |= BSS_CHANGED_ERP_CTS_PROT;
1734 }
1735 if (params->use_short_preamble >= 0) {
bda3933a 1736 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1737 params->use_short_preamble;
1738 changed |= BSS_CHANGED_ERP_PREAMBLE;
1739 }
43d35343
FF		 1740
1741 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1742 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1743 sdata->vif.bss_conf.use_short_slot = true;
1744 changed |= BSS_CHANGED_ERP_SLOT;
1745 }
1746
9f1ba906 1747 if (params->use_short_slot_time >= 0) {
bda3933a 1748 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1749 params->use_short_slot_time;
1750 changed |= BSS_CHANGED_ERP_SLOT;
1751 }
1752
90c97a04 1753 if (params->basic_rates) {
2103dec1
SW		 1754 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1755 wiphy->bands[band],
1756 params->basic_rates,
1757 params->basic_rates_len,
1758 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 1759 changed |= BSS_CHANGED_BASIC_RATES;
1760 }
1761
7b7b5e56
FF		 1762 if (params->ap_isolate >= 0) {
1763 if (params->ap_isolate)
1764 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1765 else
1766 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1767 }
1768
80d7e403
HS		 1769 if (params->ht_opmode >= 0) {
1770 sdata->vif.bss_conf.ht_operation_mode =
1771 (u16) params->ht_opmode;
1772 changed |= BSS_CHANGED_HT;
1773 }
1774
339afbf4 1775 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1776 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1777 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1778 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1779 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1780 changed |= BSS_CHANGED_P2P_PS;
1781 }
1782
67baf663
JD		 1783 if (params->p2p_opp_ps > 0) {
1784 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1785 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1786 changed |= BSS_CHANGED_P2P_PS;
1787 } else if (params->p2p_opp_ps == 0) {
1788 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1789 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1790 changed |= BSS_CHANGED_P2P_PS;
1791 }
1792
9f1ba906
JM		 1793 ieee80211_bss_info_change_notify(sdata, changed);
1794
1795 return 0;
1796}
1797
31888487 1798static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1799 struct net_device *dev,
31888487
JM		 1800 struct ieee80211_txq_params *params)
1801{
1802 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1803 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1804 struct ieee80211_tx_queue_params p;
1805
1806 if (!local->ops->conf_tx)
1807 return -EOPNOTSUPP;
1808
54bcbc69
JB		 1809 if (local->hw.queues < IEEE80211_NUM_ACS)
1810 return -EOPNOTSUPP;
1811
31888487
JM		 1812 memset(&p, 0, sizeof(p));
1813 p.aifs = params->aifs;
1814 p.cw_max = params->cwmax;
1815 p.cw_min = params->cwmin;
1816 p.txop = params->txop;
ab13315a
KV		 1817
1818 /*
1819 * Setting tx queue params disables u-apsd because it's only
1820 * called in master mode.
1821 */
1822 p.uapsd = false;
1823
a3304b0a
JB		 1824 sdata->tx_conf[params->ac] = p;
1825 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 1826 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 1827 "failed to set TX queue parameters for AC %d\n",
1828 params->ac);
31888487
JM		 1829 return -EINVAL;
1830 }
1831
7d25745d
JB		 1832 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1833
31888487
JM		 1834 return 0;
1835}
1836
665af4fc 1837#ifdef CONFIG_PM
ff1b6e69
JB		 1838static int ieee80211_suspend(struct wiphy *wiphy,
1839 struct cfg80211_wowlan *wowlan)
665af4fc 1840{
eecc4800 1841 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1842}
1843
1844static int ieee80211_resume(struct wiphy *wiphy)
1845{
1846 return __ieee80211_resume(wiphy_priv(wiphy));
1847}
1848#else
1849#define ieee80211_suspend NULL
1850#define ieee80211_resume NULL
1851#endif
1852
2a519311 1853static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 1854 struct cfg80211_scan_request *req)
1855{
fd014284
JB		 1856 struct ieee80211_sub_if_data *sdata;
1857
1858 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 1859
2ca27bcf
JB		 1860 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1861 case NL80211_IFTYPE_STATION:
1862 case NL80211_IFTYPE_ADHOC:
1863 case NL80211_IFTYPE_MESH_POINT:
1864 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 1865 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 1866 break;
1867 case NL80211_IFTYPE_P2P_GO:
1868 if (sdata->local->ops->hw_scan)
1869 break;
e9d7732e
JB		 1870 /*
1871 * FIXME: implement NoA while scanning in software,
1872 * for now fall through to allow scanning only when
1873 * beaconing hasn't been configured yet
1874 */
2ca27bcf 1875 case NL80211_IFTYPE_AP:
5c95b940
AQ		 1876 /*
1877 * If the scan has been forced (and the driver supports
1878 * forcing), don't care about being beaconing already.
1879 * This will create problems to the attached stations (e.g. all
1880 * the frames sent while scanning on other channel will be
1881 * lost)
1882 */
1883 if (sdata->u.ap.beacon &&
1884 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1885 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 1886 return -EOPNOTSUPP;
1887 break;
1888 default:
1889 return -EOPNOTSUPP;
1890 }
2a519311
JB		 1891
1892 return ieee80211_request_scan(sdata, req);
1893}
1894
79f460ca
LC		 1895static int
1896ieee80211_sched_scan_start(struct wiphy *wiphy,
1897 struct net_device *dev,
1898 struct cfg80211_sched_scan_request *req)
1899{
1900 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1901
1902 if (!sdata->local->ops->sched_scan_start)
1903 return -EOPNOTSUPP;
1904
1905 return ieee80211_request_sched_scan_start(sdata, req);
1906}
1907
1908static int
85a9994a 1909ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 1910{
1911 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1912
1913 if (!sdata->local->ops->sched_scan_stop)
1914 return -EOPNOTSUPP;
1915
85a9994a 1916 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 1917}
1918
636a5d36
JM		 1919static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1920 struct cfg80211_auth_request *req)
1921{
77fdaa12 1922 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1923}
1924
1925static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1926 struct cfg80211_assoc_request *req)
1927{
77fdaa12 1928 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1929}
1930
1931static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 1932 struct cfg80211_deauth_request *req)
636a5d36 1933{
63c9c5e7 1934 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1935}
1936
1937static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 1938 struct cfg80211_disassoc_request *req)
636a5d36 1939{
63c9c5e7 1940 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1941}
1942
af8cdcd8
JB		 1943static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1944 struct cfg80211_ibss_params *params)
1945{
55de908a 1946 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 1947}
1948
1949static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1950{
55de908a 1951 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 1952}
1953
391e53e3
AQ		 1954static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
1955 int rate[IEEE80211_NUM_BANDS])
1956{
1957 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1958
9887dbf5
CD		 1959 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
1960 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 1961
1962 return 0;
1963}
1964
b9a5f8ca
JM		 1965static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1966{
1967 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 1968 int err;
b9a5f8ca 1969
f23a4780
AN		 1970 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1971 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1972
1973 if (err)
1974 return err;
1975 }
1976
310bc676
LT		 1977 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1978 err = drv_set_coverage_class(local, wiphy->coverage_class);
1979
1980 if (err)
1981 return err;
1982 }
1983
b9a5f8ca 1984 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 1985 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 1986
24487981
JB		 1987 if (err)
1988 return err;
b9a5f8ca
JM		 1989 }
1990
8bc83c24
JB		 1991 if (changed & WIPHY_PARAM_RETRY_SHORT) {
1992 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
1993 return -EINVAL;
b9a5f8ca 1994 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 1995 }
1996 if (changed & WIPHY_PARAM_RETRY_LONG) {
1997 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
1998 return -EINVAL;
b9a5f8ca 1999 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2000 }
b9a5f8ca
JM		 2001 if (changed &
2002 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2003 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2004
2005 return 0;
2006}
2007
7643a2c3 2008static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2009 struct wireless_dev *wdev,
fa61cf70 2010 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2011{
2012 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2013 struct ieee80211_sub_if_data *sdata;
7643a2c3 2014
1ea6f9c0
JB		 2015 if (wdev) {
2016 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2017
2018 switch (type) {
2019 case NL80211_TX_POWER_AUTOMATIC:
2020 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2021 break;
2022 case NL80211_TX_POWER_LIMITED:
2023 case NL80211_TX_POWER_FIXED:
2024 if (mbm < 0 || (mbm % 100))
2025 return -EOPNOTSUPP;
2026 sdata->user_power_level = MBM_TO_DBM(mbm);
2027 break;
2028 }
2029
2030 ieee80211_recalc_txpower(sdata);
2031
2032 return 0;
2033 }
55de908a 2034
7643a2c3 2035 switch (type) {
fa61cf70 2036 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2037 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
7643a2c3 2038 break;
fa61cf70 2039 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2040 case NL80211_TX_POWER_FIXED:
2041 if (mbm < 0 || (mbm % 100))
2042 return -EOPNOTSUPP;
fa61cf70 2043 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2044 break;
7643a2c3
JB		 2045 }
2046
1ea6f9c0
JB		 2047 mutex_lock(&local->iflist_mtx);
2048 list_for_each_entry(sdata, &local->interfaces, list)
2049 sdata->user_power_level = local->user_power_level;
2050 list_for_each_entry(sdata, &local->interfaces, list)
2051 ieee80211_recalc_txpower(sdata);
2052 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2053
2054 return 0;
2055}
2056
c8442118
JB		 2057static int ieee80211_get_tx_power(struct wiphy *wiphy,
2058 struct wireless_dev *wdev,
2059 int *dbm)
7643a2c3
JB		 2060{
2061 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2062 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2063
1ea6f9c0
JB		 2064 if (!local->use_chanctx)
2065 *dbm = local->hw.conf.power_level;
2066 else
2067 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2068
7643a2c3
JB		 2069 return 0;
2070}
2071
ab737a4f 2072static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2073 const u8 *addr)
ab737a4f
JB		 2074{
2075 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2076
2077 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2078
2079 return 0;
2080}
2081
1f87f7d3
JB		 2082static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2083{
2084 struct ieee80211_local *local = wiphy_priv(wiphy);
2085
2086 drv_rfkill_poll(local);
2087}
2088
aff89a9b 2089#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2090static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2091 struct wireless_dev *wdev,
2092 void *data, int len)
aff89a9b
JB		 2093{
2094 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2095 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2096
2097 if (!local->ops->testmode_cmd)
2098 return -EOPNOTSUPP;
2099
52981cd7
DS		 2100 if (wdev) {
2101 struct ieee80211_sub_if_data *sdata;
2102
2103 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2104 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2105 vif = &sdata->vif;
2106 }
2107
2108 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2109}
71063f0e
WYG		 2110
2111static int ieee80211_testmode_dump(struct wiphy *wiphy,
2112 struct sk_buff *skb,
2113 struct netlink_callback *cb,
2114 void *data, int len)
2115{
2116 struct ieee80211_local *local = wiphy_priv(wiphy);
2117
2118 if (!local->ops->testmode_dump)
2119 return -EOPNOTSUPP;
2120
2121 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2122}
aff89a9b
JB		 2123#endif
2124
687da132
EG		 2125int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2126 enum ieee80211_smps_mode smps_mode)
2127{
2128 struct sta_info *sta;
2129 enum ieee80211_smps_mode old_req;
2130 int i;
2131
2132 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2133 return -EINVAL;
2134
2135 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2136 return 0;
2137
2138 old_req = sdata->u.ap.req_smps;
2139 sdata->u.ap.req_smps = smps_mode;
2140
2141 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2142 if (old_req == smps_mode ||
2143 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2144 return 0;
2145
2146 /* If no associated stations, there's no need to do anything */
2147 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2148 sdata->smps_mode = smps_mode;
2149 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2150 return 0;
2151 }
2152
2153 ht_dbg(sdata,
2154 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2155 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2156
2157 mutex_lock(&sdata->local->sta_mtx);
2158 for (i = 0; i < STA_HASH_SIZE; i++) {
2159 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2160 lockdep_is_held(&sdata->local->sta_mtx));
2161 sta;
2162 sta = rcu_dereference_protected(sta->hnext,
2163 lockdep_is_held(&sdata->local->sta_mtx))) {
2164 /*
2165 * Only stations associated to our AP and
2166 * associated VLANs
2167 */
2168 if (sta->sdata->bss != &sdata->u.ap)
2169 continue;
2170
2171 /* This station doesn't support MIMO - skip it */
2172 if (sta_info_tx_streams(sta) == 1)
2173 continue;
2174
2175 /*
2176 * Don't wake up a STA just to send the action frame
2177 * unless we are getting more restrictive.
2178 */
2179 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2180 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2181 smps_mode)) {
2182 ht_dbg(sdata,
2183 "Won't send SMPS to sleeping STA %pM\n",
2184 sta->sta.addr);
2185 continue;
2186 }
2187
2188 /*
2189 * If the STA is not authorized, wait until it gets
2190 * authorized and the action frame will be sent then.
2191 */
2192 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2193 continue;
2194
2195 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2196 ieee80211_send_smps_action(sdata, smps_mode,
2197 sta->sta.addr,
2198 sdata->vif.bss_conf.bssid);
2199 }
2200 }
2201 mutex_unlock(&sdata->local->sta_mtx);
2202
2203 sdata->smps_mode = smps_mode;
2204 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2205
2206 return 0;
2207}
2208
2209int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2210 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2211{
2212 const u8 *ap;
2213 enum ieee80211_smps_mode old_req;
2214 int err;
2215
8d61ffa5 2216 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2217
687da132
EG		 2218 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2219 return -EINVAL;
2220
0f78231b
JB		 2221 old_req = sdata->u.mgd.req_smps;
2222 sdata->u.mgd.req_smps = smps_mode;
2223
2224 if (old_req == smps_mode &&
2225 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2226 return 0;
2227
2228 /*
2229 * If not associated, or current association is not an HT
04ecd257
JB		 2230 * association, there's no need to do anything, just store
2231 * the new value until we associate.
0f78231b
JB		 2232 */
2233 if (!sdata->u.mgd.associated ||
4bf88530 2234 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2235 return 0;
0f78231b 2236
0c1ad2ca 2237 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2238
2239 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2240 if (sdata->u.mgd.powersave)
2241 smps_mode = IEEE80211_SMPS_DYNAMIC;
2242 else
2243 smps_mode = IEEE80211_SMPS_OFF;
2244 }
2245
2246 /* send SM PS frame to AP */
2247 err = ieee80211_send_smps_action(sdata, smps_mode,
2248 ap, ap);
2249 if (err)
2250 sdata->u.mgd.req_smps = old_req;
2251
2252 return err;
2253}
2254
bc92afd9
JB		 2255static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2256 bool enabled, int timeout)
2257{
2258 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2259 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2260
2d3db210 2261 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2262 return -EOPNOTSUPP;
2263
bc92afd9
JB		 2264 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2265 return -EOPNOTSUPP;
2266
2267 if (enabled == sdata->u.mgd.powersave &&
ff616381 2268 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2269 return 0;
2270
2271 sdata->u.mgd.powersave = enabled;
ff616381 2272 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2273
0f78231b 2274 /* no change, but if automatic follow powersave */
ed405be5 2275 sdata_lock(sdata);
687da132 2276 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2277 sdata_unlock(sdata);
0f78231b 2278
bc92afd9
JB		 2279 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2280 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2281
2282 ieee80211_recalc_ps(local, -1);
ab095877 2283 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2284
2285 return 0;
2286}
2287
a97c13c3
JO		 2288static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2289 struct net_device *dev,
2290 s32 rssi_thold, u32 rssi_hyst)
2291{
2292 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2293 struct ieee80211_vif *vif = &sdata->vif;
2294 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2295
a97c13c3
JO		 2296 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2297 rssi_hyst == bss_conf->cqm_rssi_hyst)
2298 return 0;
2299
2300 bss_conf->cqm_rssi_thold = rssi_thold;
2301 bss_conf->cqm_rssi_hyst = rssi_hyst;
2302
2303 /* tell the driver upon association, unless already associated */
ea086359
JB		 2304 if (sdata->u.mgd.associated &&
2305 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2306 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2307
2308 return 0;
2309}
2310
9930380f
JB		 2311static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2312 struct net_device *dev,
2313 const u8 *addr,
2314 const struct cfg80211_bitrate_mask *mask)
2315{
2316 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2317 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2318 int i, ret;
2c7e6bc9 2319
554a43d5
EP		 2320 if (!ieee80211_sdata_running(sdata))
2321 return -ENETDOWN;
2322
bdbfd6b5
SM		 2323 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2324 ret = drv_set_bitrate_mask(local, sdata, mask);
2325 if (ret)
2326 return ret;
2327 }
9930380f 2328
19468413 2329 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2330 struct ieee80211_supported_band *sband = wiphy->bands[i];
2331 int j;
2332
37eb0b16 2333 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2334 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2335 sizeof(mask->control[i].ht_mcs));
2ffbe6d3
FF		 2336
2337 sdata->rc_has_mcs_mask[i] = false;
2338 if (!sband)
2339 continue;
2340
2341 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2342 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2343 sdata->rc_has_mcs_mask[i] = true;
2344 break;
2345 }
19468413 2346 }
9930380f 2347
37eb0b16 2348 return 0;
9930380f
JB		 2349}
2350
2eb278e0
JB		 2351static int ieee80211_start_roc_work(struct ieee80211_local *local,
2352 struct ieee80211_sub_if_data *sdata,
2353 struct ieee80211_channel *channel,
2eb278e0 2354 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2355 struct sk_buff *txskb,
2356 enum ieee80211_roc_type type)
2eb278e0
JB		 2357{
2358 struct ieee80211_roc_work *roc, *tmp;
2359 bool queued = false;
21f83589 2360 int ret;
21f83589
JB		 2361
2362 lockdep_assert_held(&local->mtx);
2363
fe57d9f5
JB		 2364 if (local->use_chanctx && !local->ops->remain_on_channel)
2365 return -EOPNOTSUPP;
2366
2eb278e0
JB		 2367 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2368 if (!roc)
2369 return -ENOMEM;
2370
2fae062e
IP		 2371 /*
2372 * If the duration is zero, then the driver
2373 * wouldn't actually do anything. Set it to
2374 * 10 for now.
2375 *
2376 * TODO: cancel the off-channel operation
2377 * when we get the SKB's TX status and
2378 * the wait time was zero before.
2379 */
2380 if (!duration)
2381 duration = 10;
2382
2eb278e0 2383 roc->chan = channel;
2eb278e0
JB		 2384 roc->duration = duration;
2385 roc->req_duration = duration;
2386 roc->frame = txskb;
d339d5ca 2387 roc->type = type;
2eb278e0
JB		 2388 roc->mgmt_tx_cookie = (unsigned long)txskb;
2389 roc->sdata = sdata;
2390 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2391 INIT_LIST_HEAD(&roc->dependents);
2392
2f617435
EP		 2393 /*
2394 * cookie is either the roc cookie (for normal roc)
2395 * or the SKB (for mgmt TX)
2396 */
2397 if (!txskb) {
2398 /* local->mtx protects this */
2399 local->roc_cookie_counter++;
2400 roc->cookie = local->roc_cookie_counter;
2401 /* wow, you wrapped 64 bits ... more likely a bug */
2402 if (WARN_ON(roc->cookie == 0)) {
2403 roc->cookie = 1;
2404 local->roc_cookie_counter++;
2405 }
2406 *cookie = roc->cookie;
2407 } else {
2408 *cookie = (unsigned long)txskb;
2409 }
2410
2eb278e0 2411 /* if there's one pending or we're scanning, queue this one */
164eb02d
SW		 2412 if (!list_empty(&local->roc_list) ||
2413 local->scanning || local->radar_detect_enabled)
2eb278e0
JB		 2414 goto out_check_combine;
2415
2416 /* if not HW assist, just queue & schedule work */
2417 if (!local->ops->remain_on_channel) {
2418 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2419 goto out_queue;
2420 }
2421
2422 /* otherwise actually kick it off here (for error handling) */
2423
d339d5ca 2424 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2425 if (ret) {
2eb278e0
JB		 2426 kfree(roc);
2427 return ret;
21f83589
JB		 2428 }
2429
2eb278e0
JB		 2430 roc->started = true;
2431 goto out_queue;
2432
2433 out_check_combine:
2434 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2435 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2436 continue;
2437
2438 /*
2439 * Extend this ROC if possible:
2440 *
2441 * If it hasn't started yet, just increase the duration
2442 * and add the new one to the list of dependents.
d339d5ca
IP		 2443 * If the type of the new ROC has higher priority, modify the
2444 * type of the previous one to match that of the new one.
2eb278e0
JB		 2445 */
2446 if (!tmp->started) {
2447 list_add_tail(&roc->list, &tmp->dependents);
2448 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2449 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2450 queued = true;
2451 break;
2452 }
2453
2454 /* If it has already started, it's more difficult ... */
2455 if (local->ops->remain_on_channel) {
2456 unsigned long j = jiffies;
2457
2458 /*
2459 * In the offloaded ROC case, if it hasn't begun, add
2460 * this new one to the dependent list to be handled
d339d5ca 2461 * when the master one begins. If it has begun,
2eb278e0
JB		 2462 * check that there's still a minimum time left and
2463 * if so, start this one, transmitting the frame, but
d339d5ca 2464 * add it to the list directly after this one with
2eb278e0
JB		 2465 * a reduced time so we'll ask the driver to execute
2466 * it right after finishing the previous one, in the
2467 * hope that it'll also be executed right afterwards,
2468 * effectively extending the old one.
2469 * If there's no minimum time left, just add it to the
2470 * normal list.
d339d5ca
IP		 2471 * TODO: the ROC type is ignored here, assuming that it
2472 * is better to immediately use the current ROC.
2eb278e0
JB		 2473 */
2474 if (!tmp->hw_begun) {
2475 list_add_tail(&roc->list, &tmp->dependents);
2476 queued = true;
2477 break;
2478 }
2479
2480 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2481 tmp->hw_start_time +
2482 msecs_to_jiffies(tmp->duration))) {
2483 int new_dur;
2484
2485 ieee80211_handle_roc_started(roc);
2486
2487 new_dur = roc->duration -
2488 jiffies_to_msecs(tmp->hw_start_time +
2489 msecs_to_jiffies(
2490 tmp->duration) -
2491 j);
2492
2493 if (new_dur > 0) {
2494 /* add right after tmp */
2495 list_add(&roc->list, &tmp->list);
2496 } else {
2497 list_add_tail(&roc->list,
2498 &tmp->dependents);
2499 }
2500 queued = true;
2501 }
2502 } else if (del_timer_sync(&tmp->work.timer)) {
2503 unsigned long new_end;
2504
2505 /*
2506 * In the software ROC case, cancel the timer, if
2507 * that fails then the finish work is already
2508 * queued/pending and thus we queue the new ROC
2509 * normally, if that succeeds then we can extend
2510 * the timer duration and TX the frame (if any.)
2511 */
2512
2513 list_add_tail(&roc->list, &tmp->dependents);
2514 queued = true;
2515
2516 new_end = jiffies + msecs_to_jiffies(roc->duration);
2517
2518 /* ok, it was started & we canceled timer */
2519 if (time_after(new_end, tmp->work.timer.expires))
2520 mod_timer(&tmp->work.timer, new_end);
2521 else
2522 add_timer(&tmp->work.timer);
2523
2524 ieee80211_handle_roc_started(roc);
2525 }
2526 break;
2527 }
2528
2529 out_queue:
2530 if (!queued)
2531 list_add_tail(&roc->list, &local->roc_list);
2532
2eb278e0 2533 return 0;
21f83589
JB		 2534}
2535
b8bc4b0a 2536static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2537 struct wireless_dev *wdev,
b8bc4b0a 2538 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2539 unsigned int duration,
2540 u64 *cookie)
2541{
71bbc994 2542 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2543 struct ieee80211_local *local = sdata->local;
2eb278e0 2544 int ret;
21f83589 2545
2eb278e0 2546 mutex_lock(&local->mtx);
42d97a59 2547 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2548 duration, cookie, NULL,
2549 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2550 mutex_unlock(&local->mtx);
b8bc4b0a 2551
2eb278e0 2552 return ret;
b8bc4b0a
JB		 2553}
2554
2eb278e0
JB		 2555static int ieee80211_cancel_roc(struct ieee80211_local *local,
2556 u64 cookie, bool mgmt_tx)
21f83589 2557{
2eb278e0 2558 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2559 int ret;
2560
2eb278e0
JB		 2561 mutex_lock(&local->mtx);
2562 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2563 struct ieee80211_roc_work *dep, *tmp2;
2564
2565 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2566 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2567 continue;
2568 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2569 continue;
2570 /* found dependent item -- just remove it */
2571 list_del(&dep->list);
2572 mutex_unlock(&local->mtx);
2573
3fbd45ca 2574 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2575 return 0;
2576 }
2577
50febf6a 2578 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2579 continue;
2580 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2581 continue;
21f83589 2582
2eb278e0
JB		 2583 found = roc;
2584 break;
2585 }
21f83589 2586
2eb278e0
JB		 2587 if (!found) {
2588 mutex_unlock(&local->mtx);
2589 return -ENOENT;
2590 }
21f83589 2591
e979e33c
JB		 2592 /*
2593 * We found the item to cancel, so do that. Note that it
2594 * may have dependents, which we also cancel (and send
2595 * the expired signal for.) Not doing so would be quite
2596 * tricky here, but we may need to fix it later.
2597 */
2598
2eb278e0
JB		 2599 if (local->ops->remain_on_channel) {
2600 if (found->started) {
2601 ret = drv_cancel_remain_on_channel(local);
2602 if (WARN_ON_ONCE(ret)) {
2603 mutex_unlock(&local->mtx);
2604 return ret;
2605 }
2606 }
21f83589 2607
2eb278e0 2608 list_del(&found->list);
21f83589 2609
0f6b3f59
JB		 2610 if (found->started)
2611 ieee80211_start_next_roc(local);
2eb278e0 2612 mutex_unlock(&local->mtx);
21f83589 2613
3fbd45ca 2614 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2615 } else {
2616 /* work may be pending so use it all the time */
2617 found->abort = true;
2618 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2619
21f83589
JB		 2620 mutex_unlock(&local->mtx);
2621
2eb278e0
JB		 2622 /* work will clean up etc */
2623 flush_delayed_work(&found->work);
3fbd45ca
JB		 2624 WARN_ON(!found->to_be_freed);
2625 kfree(found);
21f83589 2626 }
b8bc4b0a 2627
2eb278e0 2628 return 0;
b8bc4b0a
JB		 2629}
2630
2eb278e0 2631static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2632 struct wireless_dev *wdev,
2eb278e0 2633 u64 cookie)
f30221e4 2634{
71bbc994 2635 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2636 struct ieee80211_local *local = sdata->local;
f30221e4 2637
2eb278e0 2638 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2639}
2640
164eb02d
SW		 2641static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2642 struct net_device *dev,
31559f35
JD		 2643 struct cfg80211_chan_def *chandef,
2644 u32 cac_time_ms)
164eb02d
SW		 2645{
2646 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2647 struct ieee80211_local *local = sdata->local;
164eb02d
SW		 2648 int err;
2649
34a3740d
JB		 2650 mutex_lock(&local->mtx);
2651 if (!list_empty(&local->roc_list) || local->scanning) {
2652 err = -EBUSY;
2653 goto out_unlock;
2654 }
164eb02d
SW		 2655
2656 /* whatever, but channel contexts should not complain about that one */
2657 sdata->smps_mode = IEEE80211_SMPS_OFF;
2658 sdata->needed_rx_chains = local->rx_chains;
164eb02d 2659
164eb02d
SW		 2660 err = ieee80211_vif_use_channel(sdata, chandef,
2661 IEEE80211_CHANCTX_SHARED);
164eb02d 2662 if (err)
34a3740d 2663 goto out_unlock;
164eb02d 2664
164eb02d 2665 ieee80211_queue_delayed_work(&sdata->local->hw,
31559f35
JD		 2666 &sdata->dfs_cac_timer_work,
2667 msecs_to_jiffies(cac_time_ms));
164eb02d 2668
34a3740d
JB		 2669 out_unlock:
2670 mutex_unlock(&local->mtx);
2671 return err;
164eb02d
SW		 2672}
2673
73da7d5b
SW		 2674static struct cfg80211_beacon_data *
2675cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2676{
2677 struct cfg80211_beacon_data *new_beacon;
2678 u8 *pos;
2679 int len;
2680
2681 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2682 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2683 beacon->probe_resp_len;
2684
2685 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2686 if (!new_beacon)
2687 return NULL;
2688
2689 pos = (u8 *)(new_beacon + 1);
2690 if (beacon->head_len) {
2691 new_beacon->head_len = beacon->head_len;
2692 new_beacon->head = pos;
2693 memcpy(pos, beacon->head, beacon->head_len);
2694 pos += beacon->head_len;
2695 }
2696 if (beacon->tail_len) {
2697 new_beacon->tail_len = beacon->tail_len;
2698 new_beacon->tail = pos;
2699 memcpy(pos, beacon->tail, beacon->tail_len);
2700 pos += beacon->tail_len;
2701 }
2702 if (beacon->beacon_ies_len) {
2703 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2704 new_beacon->beacon_ies = pos;
2705 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2706 pos += beacon->beacon_ies_len;
2707 }
2708 if (beacon->proberesp_ies_len) {
2709 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2710 new_beacon->proberesp_ies = pos;
2711 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2712 pos += beacon->proberesp_ies_len;
2713 }
2714 if (beacon->assocresp_ies_len) {
2715 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2716 new_beacon->assocresp_ies = pos;
2717 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2718 pos += beacon->assocresp_ies_len;
2719 }
2720 if (beacon->probe_resp_len) {
2721 new_beacon->probe_resp_len = beacon->probe_resp_len;
2722 beacon->probe_resp = pos;
2723 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2724 pos += beacon->probe_resp_len;
2725 }
2726
2727 return new_beacon;
2728}
2729
66e01cf9 2730void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2731{
66e01cf9 2732 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2733
66e01cf9
LC		 2734 ieee80211_queue_work(&sdata->local->hw,
2735 &sdata->csa_finalize_work);
2736}
2737EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 2738
66199506
MK		 2739static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2740 u32 *changed)
66e01cf9 2741{
66199506 2742 int err;
7578d575 2743
cd7760e6
SW		 2744 switch (sdata->vif.type) {
2745 case NL80211_IFTYPE_AP:
af296bdb
MK		 2746 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2747 NULL);
97518af1
MK		 2748 kfree(sdata->u.ap.next_beacon);
2749 sdata->u.ap.next_beacon = NULL;
2750
cd7760e6 2751 if (err < 0)
66199506
MK		 2752 return err;
2753 *changed |= err;
cd7760e6
SW		 2754 break;
2755 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 2756 err = ieee80211_ibss_finish_csa(sdata);
2757 if (err < 0)
66199506
MK		 2758 return err;
2759 *changed |= err;
cd7760e6 2760 break;
b8456a14
CYY		 2761#ifdef CONFIG_MAC80211_MESH
2762 case NL80211_IFTYPE_MESH_POINT:
2763 err = ieee80211_mesh_finish_csa(sdata);
2764 if (err < 0)
66199506
MK		 2765 return err;
2766 *changed |= err;
b8456a14
CYY		 2767 break;
2768#endif
cd7760e6
SW		 2769 default:
2770 WARN_ON(1);
66199506
MK		 2771 return -EINVAL;
2772 }
2773
2774 return 0;
2775}
2776
cf8767dd 2777static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
66199506
MK		 2778{
2779 struct ieee80211_local *local = sdata->local;
2780 u32 changed = 0;
2781 int err;
2782
2783 sdata_assert_lock(sdata);
2784 lockdep_assert_held(&local->mtx);
2785
2786 sdata->radar_required = sdata->csa_radar_required;
2787 err = ieee80211_vif_change_channel(sdata, &changed);
cf8767dd
MK		 2788 if (err < 0)
2789 return err;
66199506
MK		 2790
2791 if (!local->use_chanctx) {
2792 local->_oper_chandef = sdata->csa_chandef;
2793 ieee80211_hw_config(local, 0);
cd7760e6 2794 }
73da7d5b 2795
66199506
MK		 2796 sdata->vif.csa_active = false;
2797
2798 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2799 if (err)
cf8767dd 2800 return err;
faf046e7 2801
66199506 2802 ieee80211_bss_info_change_notify(sdata, changed);
59af6928
MK		 2803 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2804
a46992b4
LC		 2805 if (sdata->csa_block_tx) {
2806 ieee80211_wake_vif_queues(local, sdata,
2807 IEEE80211_QUEUE_STOP_REASON_CSA);
2808 sdata->csa_block_tx = false;
2809 }
cf8767dd
MK		 2810
2811 return 0;
2812}
2813
2814static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2815{
2816 if (__ieee80211_csa_finalize(sdata)) {
2817 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2818 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2819 GFP_KERNEL);
2820 }
66e01cf9
LC		 2821}
2822
2823void ieee80211_csa_finalize_work(struct work_struct *work)
2824{
2825 struct ieee80211_sub_if_data *sdata =
2826 container_of(work, struct ieee80211_sub_if_data,
2827 csa_finalize_work);
59af6928 2828 struct ieee80211_local *local = sdata->local;
66e01cf9
LC		 2829
2830 sdata_lock(sdata);
59af6928
MK		 2831 mutex_lock(&local->mtx);
2832
66e01cf9
LC		 2833 /* AP might have been stopped while waiting for the lock. */
2834 if (!sdata->vif.csa_active)
2835 goto unlock;
2836
2837 if (!ieee80211_sdata_running(sdata))
2838 goto unlock;
2839
2840 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 2841
2842unlock:
59af6928 2843 mutex_unlock(&local->mtx);
e487eaeb 2844 sdata_unlock(sdata);
73da7d5b
SW		 2845}
2846
37fa2bdd
MK		 2847static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2848 struct cfg80211_csa_settings *params,
2849 u32 *changed)
73da7d5b 2850{
af296bdb 2851 struct ieee80211_csa_settings csa = {};
37fa2bdd 2852 int err;
73da7d5b 2853
73da7d5b
SW		 2854 switch (sdata->vif.type) {
2855 case NL80211_IFTYPE_AP:
cd7760e6
SW		 2856 sdata->u.ap.next_beacon =
2857 cfg80211_beacon_dup(&params->beacon_after);
2858 if (!sdata->u.ap.next_beacon)
2859 return -ENOMEM;
2860
66e01cf9
LC		 2861 /*
2862 * With a count of 0, we don't have to wait for any
2863 * TBTT before switching, so complete the CSA
2864 * immediately. In theory, with a count == 1 we
2865 * should delay the switch until just before the next
2866 * TBTT, but that would complicate things so we switch
2867 * immediately too. If we would delay the switch
2868 * until the next TBTT, we would have to set the probe
2869 * response here.
2870 *
2871 * TODO: A channel switch with count <= 1 without
2872 * sending a CSA action frame is kind of useless,
2873 * because the clients won't know we're changing
2874 * channels. The action frame must be implemented
2875 * either here or in the userspace.
2876 */
2877 if (params->count <= 1)
2878 break;
2879
0d06d9ba
AO		 2880 if ((params->n_counter_offsets_beacon >
2881 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2882 (params->n_counter_offsets_presp >
2883 IEEE80211_MAX_CSA_COUNTERS_NUM))
2884 return -EINVAL;
9a774c78 2885
af296bdb
MK		 2886 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2887 csa.counter_offsets_presp = params->counter_offsets_presp;
2888 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2889 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2890 csa.count = params->count;
9a774c78 2891
af296bdb 2892 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
cd7760e6
SW		 2893 if (err < 0) {
2894 kfree(sdata->u.ap.next_beacon);
2895 return err;
2896 }
37fa2bdd 2897 *changed |= err;
66e01cf9 2898
cd7760e6
SW		 2899 break;
2900 case NL80211_IFTYPE_ADHOC:
2901 if (!sdata->vif.bss_conf.ibss_joined)
2902 return -EINVAL;
2903
2904 if (params->chandef.width != sdata->u.ibss.chandef.width)
2905 return -EINVAL;
2906
2907 switch (params->chandef.width) {
2908 case NL80211_CHAN_WIDTH_40:
2909 if (cfg80211_get_chandef_type(&params->chandef) !=
2910 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2911 return -EINVAL;
2912 case NL80211_CHAN_WIDTH_5:
2913 case NL80211_CHAN_WIDTH_10:
2914 case NL80211_CHAN_WIDTH_20_NOHT:
2915 case NL80211_CHAN_WIDTH_20:
2916 break;
2917 default:
2918 return -EINVAL;
2919 }
2920
2921 /* changes into another band are not supported */
2922 if (sdata->u.ibss.chandef.chan->band !=
2923 params->chandef.chan->band)
2924 return -EINVAL;
2925
66e01cf9
LC		 2926 /* see comments in the NL80211_IFTYPE_AP block */
2927 if (params->count > 1) {
2928 err = ieee80211_ibss_csa_beacon(sdata, params);
2929 if (err < 0)
2930 return err;
37fa2bdd 2931 *changed |= err;
66e01cf9
LC		 2932 }
2933
2934 ieee80211_send_action_csa(sdata, params);
2935
73da7d5b 2936 break;
c6da674a 2937#ifdef CONFIG_MAC80211_MESH
37fa2bdd
MK		 2938 case NL80211_IFTYPE_MESH_POINT: {
2939 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a 2940
c6da674a
CYY		 2941 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
2942 return -EINVAL;
2943
2944 /* changes into another band are not supported */
2945 if (sdata->vif.bss_conf.chandef.chan->band !=
2946 params->chandef.chan->band)
2947 return -EINVAL;
2948
c782bf8c 2949 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 2950 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 2951 if (!ifmsh->pre_value)
2952 ifmsh->pre_value = 1;
2953 else
2954 ifmsh->pre_value++;
2955 }
0cb4d4dc 2956
66e01cf9
LC		 2957 /* see comments in the NL80211_IFTYPE_AP block */
2958 if (params->count > 1) {
2959 err = ieee80211_mesh_csa_beacon(sdata, params);
2960 if (err < 0) {
2961 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
2962 return err;
2963 }
37fa2bdd 2964 *changed |= err;
3f718fd8 2965 }
66e01cf9
LC		 2966
2967 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
2968 ieee80211_send_action_csa(sdata, params);
2969
c6da674a 2970 break;
37fa2bdd 2971 }
c6da674a 2972#endif
73da7d5b
SW		 2973 default:
2974 return -EOPNOTSUPP;
2975 }
2976
37fa2bdd
MK		 2977 return 0;
2978}
2979
f29f58a9
LC		 2980static int
2981__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2982 struct cfg80211_csa_settings *params)
37fa2bdd
MK		 2983{
2984 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2985 struct ieee80211_local *local = sdata->local;
2b32713d 2986 struct ieee80211_chanctx_conf *conf;
37fa2bdd
MK		 2987 struct ieee80211_chanctx *chanctx;
2988 int err, num_chanctx, changed = 0;
2989
2990 sdata_assert_lock(sdata);
59af6928 2991 lockdep_assert_held(&local->mtx);
37fa2bdd
MK		 2992
2993 if (!list_empty(&local->roc_list) || local->scanning)
2994 return -EBUSY;
2995
2996 if (sdata->wdev.cac_started)
2997 return -EBUSY;
2998
2999 if (cfg80211_chandef_identical(&params->chandef,
3000 &sdata->vif.bss_conf.chandef))
3001 return -EINVAL;
3002
2b32713d
MK		 3003 mutex_lock(&local->chanctx_mtx);
3004 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3005 lockdep_is_held(&local->chanctx_mtx));
3006 if (!conf) {
3007 mutex_unlock(&local->chanctx_mtx);
37fa2bdd
MK		 3008 return -EBUSY;
3009 }
3010
3011 /* don't handle for multi-VIF cases */
2b32713d 3012 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
c0166da9 3013 if (ieee80211_chanctx_refcount(local, chanctx) > 1) {
2b32713d 3014 mutex_unlock(&local->chanctx_mtx);
37fa2bdd
MK		 3015 return -EBUSY;
3016 }
3017 num_chanctx = 0;
3018 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3019 num_chanctx++;
2b32713d 3020 mutex_unlock(&local->chanctx_mtx);
37fa2bdd
MK		 3021
3022 if (num_chanctx > 1)
3023 return -EBUSY;
3024
3025 /* don't allow another channel switch if one is already active. */
3026 if (sdata->vif.csa_active)
3027 return -EBUSY;
3028
3029 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3030 if (err)
3031 return err;
3032
73da7d5b 3033 sdata->csa_radar_required = params->radar_required;
33787fc4 3034 sdata->csa_chandef = params->chandef;
59af6928 3035 sdata->csa_block_tx = params->block_tx;
73da7d5b
SW		 3036 sdata->vif.csa_active = true;
3037
59af6928 3038 if (sdata->csa_block_tx)
a46992b4
LC		 3039 ieee80211_stop_vif_queues(local, sdata,
3040 IEEE80211_QUEUE_STOP_REASON_CSA);
59af6928 3041
66e01cf9
LC		 3042 if (changed) {
3043 ieee80211_bss_info_change_notify(sdata, changed);
3044 drv_channel_switch_beacon(sdata, &params->chandef);
3045 } else {
3046 /* if the beacon didn't change, we can finalize immediately */
3047 ieee80211_csa_finalize(sdata);
3048 }
73da7d5b
SW		 3049
3050 return 0;
3051}
3052
59af6928
MK		 3053int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3054 struct cfg80211_csa_settings *params)
3055{
3056 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3057 struct ieee80211_local *local = sdata->local;
3058 int err;
3059
3060 mutex_lock(&local->mtx);
3061 err = __ieee80211_channel_switch(wiphy, dev, params);
3062 mutex_unlock(&local->mtx);
3063
3064 return err;
3065}
3066
71bbc994 3067static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3068 struct cfg80211_mgmt_tx_params *params,
3069 u64 *cookie)
026331c4 3070{
71bbc994 3071 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d
JB		 3072 struct ieee80211_local *local = sdata->local;
3073 struct sk_buff *skb;
3074 struct sta_info *sta;
b176e629 3075 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3076 bool need_offchan = false;
e247bd90 3077 u32 flags;
2eb278e0 3078 int ret;
387910cc 3079 u8 *data;
f7ca38df 3080
b176e629 3081 if (params->dont_wait_for_ack)
e247bd90
JB		 3082 flags = IEEE80211_TX_CTL_NO_ACK;
3083 else
3084 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3085 IEEE80211_TX_CTL_REQ_TX_STATUS;
3086
b176e629 3087 if (params->no_cck)
aad14ceb
RM		 3088 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3089
9d38d85d
JB		 3090 switch (sdata->vif.type) {
3091 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3092 if (!sdata->vif.bss_conf.ibss_joined)
3093 need_offchan = true;
3094 /* fall through */
3095#ifdef CONFIG_MAC80211_MESH
3096 case NL80211_IFTYPE_MESH_POINT:
3097 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3098 !sdata->u.mesh.mesh_id_len)
3099 need_offchan = true;
3100 /* fall through */
3101#endif
663fcafd
JB		 3102 case NL80211_IFTYPE_AP:
3103 case NL80211_IFTYPE_AP_VLAN:
3104 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3105 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3106 !ieee80211_vif_is_mesh(&sdata->vif) &&
3107 !rcu_access_pointer(sdata->bss->beacon))
3108 need_offchan = true;
663fcafd 3109 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3110 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3111 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3112 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3113 break;
3114 rcu_read_lock();
3115 sta = sta_info_get(sdata, mgmt->da);
3116 rcu_read_unlock();
3117 if (!sta)
3118 return -ENOLINK;
3119 break;
3120 case NL80211_IFTYPE_STATION:
663fcafd 3121 case NL80211_IFTYPE_P2P_CLIENT:
2eb278e0
JB		 3122 if (!sdata->u.mgd.associated)
3123 need_offchan = true;
9d38d85d 3124 break;
f142c6b9
JB		 3125 case NL80211_IFTYPE_P2P_DEVICE:
3126 need_offchan = true;
3127 break;
9d38d85d
JB		 3128 default:
3129 return -EOPNOTSUPP;
3130 }
3131
f7aeb6fb
AQ		 3132 /* configurations requiring offchan cannot work if no channel has been
3133 * specified
3134 */
b176e629 3135 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3136 return -EINVAL;
3137
2eb278e0
JB		 3138 mutex_lock(&local->mtx);
3139
3140 /* Check if the operating channel is the requested channel */
3141 if (!need_offchan) {
55de908a
JB		 3142 struct ieee80211_chanctx_conf *chanctx_conf;
3143
3144 rcu_read_lock();
3145 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3146
f7aeb6fb 3147 if (chanctx_conf) {
b176e629
AO		 3148 need_offchan = params->chan &&
3149 (params->chan !=
3150 chanctx_conf->def.chan);
3151 } else if (!params->chan) {
f7aeb6fb
AQ		 3152 ret = -EINVAL;
3153 rcu_read_unlock();
3154 goto out_unlock;
3155 } else {
2eb278e0 3156 need_offchan = true;
f7aeb6fb 3157 }
55de908a 3158 rcu_read_unlock();
2eb278e0
JB		 3159 }
3160
b176e629 3161 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3162 ret = -EBUSY;
3163 goto out_unlock;
3164 }
3165
b176e629 3166 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3167 if (!skb) {
3168 ret = -ENOMEM;
3169 goto out_unlock;
3170 }
9d38d85d
JB		 3171 skb_reserve(skb, local->hw.extra_tx_headroom);
3172
387910cc
AO		 3173 data = skb_put(skb, params->len);
3174 memcpy(data, params->buf, params->len);
3175
3176 /* Update CSA counters */
3177 if (sdata->vif.csa_active &&
3178 (sdata->vif.type == NL80211_IFTYPE_AP ||
3179 sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3180 params->n_csa_offsets) {
3181 int i;
af296bdb 3182 struct beacon_data *beacon = NULL;
387910cc 3183
af296bdb
MK		 3184 rcu_read_lock();
3185
3186 if (sdata->vif.type == NL80211_IFTYPE_AP)
3187 beacon = rcu_dereference(sdata->u.ap.beacon);
3188 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3189 beacon = rcu_dereference(sdata->u.ibss.presp);
3190 else if (ieee80211_vif_is_mesh(&sdata->vif))
3191 beacon = rcu_dereference(sdata->u.mesh.beacon);
3192
3193 if (beacon)
3194 for (i = 0; i < params->n_csa_offsets; i++)
3195 data[params->csa_offsets[i]] =
3196 beacon->csa_current_counter;
3197
3198 rcu_read_unlock();
387910cc 3199 }
9d38d85d
JB		 3200
3201 IEEE80211_SKB_CB(skb)->flags = flags;
3202
3203 skb->dev = sdata->dev;
9d38d85d 3204
2eb278e0 3205 if (!need_offchan) {
7f9f78ab 3206 *cookie = (unsigned long) skb;
f30221e4 3207 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3208 ret = 0;
3209 goto out_unlock;
f30221e4
JB		 3210 }
3211
6c17b77b
SF		 3212 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3213 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2eb278e0
JB		 3214 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3215 IEEE80211_SKB_CB(skb)->hw_queue =
3216 local->hw.offchannel_tx_hw_queue;
f30221e4 3217
2eb278e0 3218 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3219 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3220 params->wait, cookie, skb,
d339d5ca 3221 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3222 if (ret)
3223 kfree_skb(skb);
3224 out_unlock:
3225 mutex_unlock(&local->mtx);
3226 return ret;
026331c4
JM		 3227}
3228
f30221e4 3229static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3230 struct wireless_dev *wdev,
f30221e4
JB		 3231 u64 cookie)
3232{
71bbc994 3233 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3234
2eb278e0 3235 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3236}
3237
7be5086d 3238static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3239 struct wireless_dev *wdev,
7be5086d
JB		 3240 u16 frame_type, bool reg)
3241{
3242 struct ieee80211_local *local = wiphy_priv(wiphy);
3243
6abe0563 3244 switch (frame_type) {
6abe0563
WH		 3245 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3246 if (reg)
3247 local->probe_req_reg++;
3248 else
3249 local->probe_req_reg--;
7be5086d 3250
35f5149e
FF		 3251 if (!local->open_count)
3252 break;
3253
6abe0563
WH		 3254 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3255 break;
3256 default:
3257 break;
3258 }
7be5086d
JB		 3259}
3260
15d96753
BR		 3261static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3262{
3263 struct ieee80211_local *local = wiphy_priv(wiphy);
3264
3265 if (local->started)
3266 return -EOPNOTSUPP;
3267
3268 return drv_set_antenna(local, tx_ant, rx_ant);
3269}
3270
3271static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3272{
3273 struct ieee80211_local *local = wiphy_priv(wiphy);
3274
3275 return drv_get_antenna(local, tx_ant, rx_ant);
3276}
3277
c68f4b89
JB		 3278static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3279 struct net_device *dev,
3280 struct cfg80211_gtk_rekey_data *data)
3281{
3282 struct ieee80211_local *local = wiphy_priv(wiphy);
3283 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3284
3285 if (!local->ops->set_rekey_data)
3286 return -EOPNOTSUPP;
3287
3288 drv_set_rekey_data(local, sdata, data);
3289
3290 return 0;
3291}
3292
06500736
JB		 3293static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3294 const u8 *peer, u64 *cookie)
3295{
3296 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3297 struct ieee80211_local *local = sdata->local;
3298 struct ieee80211_qos_hdr *nullfunc;
3299 struct sk_buff *skb;
3300 int size = sizeof(*nullfunc);
3301 __le16 fc;
3302 bool qos;
3303 struct ieee80211_tx_info *info;
3304 struct sta_info *sta;
55de908a
JB		 3305 struct ieee80211_chanctx_conf *chanctx_conf;
3306 enum ieee80211_band band;
06500736
JB		 3307
3308 rcu_read_lock();
55de908a
JB		 3309 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3310 if (WARN_ON(!chanctx_conf)) {
3311 rcu_read_unlock();
3312 return -EINVAL;
3313 }
4bf88530 3314 band = chanctx_conf->def.chan->band;
03bb7f42 3315 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3316 if (sta) {
06500736 3317 qos = test_sta_flag(sta, WLAN_STA_WME);
b4487c2d
JB		 3318 } else {
3319 rcu_read_unlock();
06500736 3320 return -ENOLINK;
b4487c2d 3321 }
06500736
JB		 3322
3323 if (qos) {
3324 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3325 IEEE80211_STYPE_QOS_NULLFUNC |
3326 IEEE80211_FCTL_FROMDS);
3327 } else {
3328 size -= 2;
3329 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3330 IEEE80211_STYPE_NULLFUNC |
3331 IEEE80211_FCTL_FROMDS);
3332 }
3333
3334 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a
JB		 3335 if (!skb) {
3336 rcu_read_unlock();
06500736 3337 return -ENOMEM;
55de908a 3338 }
06500736
JB		 3339
3340 skb->dev = dev;
3341
3342 skb_reserve(skb, local->hw.extra_tx_headroom);
3343
3344 nullfunc = (void *) skb_put(skb, size);
3345 nullfunc->frame_control = fc;
3346 nullfunc->duration_id = 0;
3347 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3348 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3349 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3350 nullfunc->seq_ctrl = 0;
3351
3352 info = IEEE80211_SKB_CB(skb);
3353
3354 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3355 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3356
3357 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3358 skb->priority = 7;
3359 if (qos)
3360 nullfunc->qos_ctrl = cpu_to_le16(7);
3361
3362 local_bh_disable();
55de908a 3363 ieee80211_xmit(sdata, skb, band);
06500736 3364 local_bh_enable();
55de908a 3365 rcu_read_unlock();
06500736
JB		 3366
3367 *cookie = (unsigned long) skb;
3368 return 0;
3369}
3370
683b6d3b
JB		 3371static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3372 struct wireless_dev *wdev,
3373 struct cfg80211_chan_def *chandef)
5b7ccaf3 3374{
55de908a 3375 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3376 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3377 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3378 int ret = -ENODATA;
55de908a
JB		 3379
3380 rcu_read_lock();
feda3027
JB		 3381 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3382 if (chanctx_conf) {
3383 *chandef = chanctx_conf->def;
3384 ret = 0;
3385 } else if (local->open_count > 0 &&
3386 local->open_count == local->monitors &&
3387 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3388 if (local->use_chanctx)
3389 *chandef = local->monitor_chandef;
3390 else
675a0b04 3391 *chandef = local->_oper_chandef;
683b6d3b 3392 ret = 0;
55de908a
JB		 3393 }
3394 rcu_read_unlock();
5b7ccaf3 3395
683b6d3b 3396 return ret;
5b7ccaf3
JB		 3397}
3398
6d52563f
JB		 3399#ifdef CONFIG_PM
3400static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3401{
3402 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3403}
3404#endif
3405
32db6b54
KP		 3406static int ieee80211_set_qos_map(struct wiphy *wiphy,
3407 struct net_device *dev,
3408 struct cfg80211_qos_map *qos_map)
3409{
3410 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3411 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3412
3413 if (qos_map) {
3414 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3415 if (!new_qos_map)
3416 return -ENOMEM;
3417 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3418 } else {
3419 /* A NULL qos_map was passed to disable QoS mapping */
3420 new_qos_map = NULL;
3421 }
3422
194ff52d 3423 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3424 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3425 if (old_qos_map)
3426 kfree_rcu(old_qos_map, rcu_head);
3427
3428 return 0;
3429}
3430
3b1700bd
JM		 3431static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3432 struct net_device *dev,
3433 struct cfg80211_chan_def *chandef)
3434{
3435 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3436 int ret;
3437 u32 changed = 0;
3438
3439 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3440 if (ret == 0)
3441 ieee80211_bss_info_change_notify(sdata, changed);
3442
3443 return ret;
3444}
3445
8a47cea7 3446const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3447 .add_virtual_intf = ieee80211_add_iface,
3448 .del_virtual_intf = ieee80211_del_iface,
42613db7 3449 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3450 .start_p2p_device = ieee80211_start_p2p_device,
3451 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3452 .add_key = ieee80211_add_key,
3453 .del_key = ieee80211_del_key,
62da92fb 3454 .get_key = ieee80211_get_key,
e8cbb4cb 3455 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3456 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3457 .start_ap = ieee80211_start_ap,
3458 .change_beacon = ieee80211_change_beacon,
3459 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3460 .add_station = ieee80211_add_station,
3461 .del_station = ieee80211_del_station,
3462 .change_station = ieee80211_change_station,
7bbdd2d9 3463 .get_station = ieee80211_get_station,
c5dd9c2b 3464 .dump_station = ieee80211_dump_station,
1289723e 3465 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3466#ifdef CONFIG_MAC80211_MESH
3467 .add_mpath = ieee80211_add_mpath,
3468 .del_mpath = ieee80211_del_mpath,
3469 .change_mpath = ieee80211_change_mpath,
3470 .get_mpath = ieee80211_get_mpath,
3471 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 3472 .update_mesh_config = ieee80211_update_mesh_config,
3473 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3474 .join_mesh = ieee80211_join_mesh,
3475 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3476#endif
9f1ba906 3477 .change_bss = ieee80211_change_bss,
31888487 3478 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3479 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3480 .suspend = ieee80211_suspend,
3481 .resume = ieee80211_resume,
2a519311 3482 .scan = ieee80211_scan,
79f460ca
LC		 3483 .sched_scan_start = ieee80211_sched_scan_start,
3484 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3485 .auth = ieee80211_auth,
3486 .assoc = ieee80211_assoc,
3487 .deauth = ieee80211_deauth,
3488 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3489 .join_ibss = ieee80211_join_ibss,
3490 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3491 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3492 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3493 .set_tx_power = ieee80211_set_tx_power,
3494 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3495 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3496 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3497 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3498 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3499 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3500 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3501 .remain_on_channel = ieee80211_remain_on_channel,
3502 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3503 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3504 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3505 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3506 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3507 .set_antenna = ieee80211_set_antenna,
3508 .get_antenna = ieee80211_get_antenna,
c68f4b89 3509 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3510 .tdls_oper = ieee80211_tdls_oper,
3511 .tdls_mgmt = ieee80211_tdls_mgmt,
06500736 3512 .probe_client = ieee80211_probe_client,
b53be792 3513 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3514#ifdef CONFIG_PM
3515 .set_wakeup = ieee80211_set_wakeup,
3516#endif
5b7ccaf3 3517 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3518 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3519 .channel_switch = ieee80211_channel_switch,
32db6b54 3520 .set_qos_map = ieee80211_set_qos_map,
3b1700bd 3521 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
f0706e82 3522};
Linux 6.x block layer and io_uring tree(s)