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mac80211: make check_combinations() aware of chanctx reservation
[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
f0706e82
JB		 5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
e8cbb4cb 9#include <linux/ieee80211.h>
f0706e82
JB		 10#include <linux/nl80211.h>
11#include <linux/rtnetlink.h>
5a0e3ad6 12#include <linux/slab.h>
881d966b 13#include <net/net_namespace.h>
5dfdaf58 14#include <linux/rcupdate.h>
dfe018bf 15#include <linux/if_ether.h>
f0706e82
JB		 16#include <net/cfg80211.h>
17#include "ieee80211_i.h"
24487981 18#include "driver-ops.h"
e0eb6859 19#include "cfg.h"
2c8dccc7 20#include "rate.h"
c5dd9c2b 21#include "mesh.h"
c5dd9c2b 22
552bff0c
JB		 23static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
84efbb84
JB		 25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
f0706e82
JB		 28{
29 struct ieee80211_local *local = wiphy_priv(wiphy);
84efbb84 30 struct wireless_dev *wdev;
8cc9a739
MW		 31 struct ieee80211_sub_if_data *sdata;
32 int err;
f0706e82 33
84efbb84 34 err = ieee80211_if_add(local, name, &wdev, type, params);
f9e10ce4
JB		 35 if (err)
36 return ERR_PTR(err);
8cc9a739 37
f9e10ce4 38 if (type == NL80211_IFTYPE_MONITOR && flags) {
84efbb84 39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
f9e10ce4
JB		 40 sdata->u.mntr_flags = *flags;
41 }
42
84efbb84 43 return wdev;
f0706e82
JB		 44}
45
84efbb84 46static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
f0706e82 47{
84efbb84 48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
f0706e82 49
75636525 50 return 0;
f0706e82
JB		 51}
52
e36d56b6
JB		 53static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
2ec600d6
LCC		 55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
42613db7 57{
9607e6b6 58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 59 int ret;
42613db7 60
05c914fe 61 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 62 if (ret)
63 return ret;
42613db7 64
9bc383de
JB		 65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
a9b3cd7f 67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
9bc383de
JB		 68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
85416a4f
CL		 72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
74
75 if (ieee80211_sdata_running(sdata)) {
31eba5bc
FF		 76 u32 mask = MONITOR_FLAG_COOK_FRAMES |
77 MONITOR_FLAG_ACTIVE;
78
85416a4f 79 /*
31eba5bc
FF		 80 * Prohibit MONITOR_FLAG_COOK_FRAMES and
81 * MONITOR_FLAG_ACTIVE to be changed while the
82 * interface is up.
85416a4f
CL		 83 * Else we would need to add a lot of cruft
84 * to update everything:
85 * cooked_mntrs, monitor and all fif_* counters
86 * reconfigure hardware
87 */
31eba5bc 88 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
85416a4f
CL		 89 return -EBUSY;
90
91 ieee80211_adjust_monitor_flags(sdata, -1);
92 sdata->u.mntr_flags = *flags;
93 ieee80211_adjust_monitor_flags(sdata, 1);
94
95 ieee80211_configure_filter(local);
96 } else {
97 /*
98 * Because the interface is down, ieee80211_do_stop
99 * and ieee80211_do_open take care of "everything"
100 * mentioned in the comment above.
101 */
102 sdata->u.mntr_flags = *flags;
103 }
104 }
f7917af9 105
42613db7
JB		 106 return 0;
107}
108
f142c6b9
JB		 109static int ieee80211_start_p2p_device(struct wiphy *wiphy,
110 struct wireless_dev *wdev)
111{
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
68885a54
AN		 1000 /* auth flags will be set later for TDLS stations */
1001 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1002 ret = sta_apply_auth_flags(local, sta, mask, set);
1003 if (ret)
1004 return ret;
1005 }
d9a7ddb0 1006
eccb8e8f 1007 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1008 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1009 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1010 else
1011 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1012 }
4fd6931e 1013
eccb8e8f 1014 if (mask & BIT(NL80211_STA_FLAG_WME)) {
39df600a 1015 if (set & BIT(NL80211_STA_FLAG_WME)) {
c2c98fde 1016 set_sta_flag(sta, WLAN_STA_WME);
39df600a 1017 sta->sta.wme = true;
c2c98fde
JB		 1018 } else {
1019 clear_sta_flag(sta, WLAN_STA_WME);
1020 sta->sta.wme = false;
39df600a 1021 }
eccb8e8f 1022 }
5394af4d 1023
eccb8e8f 1024 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1025 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1026 set_sta_flag(sta, WLAN_STA_MFP);
1027 else
1028 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1029 }
b39c48fa 1030
07ba55d7 1031 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1032 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1033 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1034 else
1035 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1036 }
4fd6931e 1037
3b9ce80c
JB		 1038 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1039 sta->sta.uapsd_queues = params->uapsd_queues;
1040 sta->sta.max_sp = params->max_sp;
1041 }
9533b4ac 1042
51b50fbe
JB		 1043 /*
1044 * cfg80211 validates this (1-2007) and allows setting the AID
1045 * only when creating a new station entry
1046 */
1047 if (params->aid)
1048 sta->sta.aid = params->aid;
1049
73651ee6 1050 /*
ba23d206
JB		 1051 * Some of the following updates would be racy if called on an
1052 * existing station, via ieee80211_change_station(). However,
1053 * all such changes are rejected by cfg80211 except for updates
1054 * changing the supported rates on an existing but not yet used
1055 * TDLS peer.
73651ee6
JB		 1056 */
1057
4fd6931e
JB		 1058 if (params->listen_interval >= 0)
1059 sta->listen_interval = params->listen_interval;
1060
1061 if (params->supported_rates) {
2103dec1
SW		 1062 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1063 sband, params->supported_rates,
1064 params->supported_rates_len,
1065 &sta->sta.supp_rates[band]);
4fd6931e 1066 }
c5dd9c2b 1067
d9fe60de 1068 if (params->ht_capa)
ef96a842 1069 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1070 params->ht_capa, sta);
36aedc90 1071
f461be3e
MP		 1072 if (params->vht_capa)
1073 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1074 params->vht_capa, sta);
f461be3e 1075
b1bce14a 1076 if (params->opmode_notif_used) {
b1bce14a
MK		 1077 /* returned value is only needed for rc update, but the
1078 * rc isn't initialized here yet, so ignore it
1079 */
1080 __ieee80211_vht_handle_opmode(sdata, sta,
1081 params->opmode_notif,
1082 band, false);
1083 }
1084
9c3990aa 1085 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1086#ifdef CONFIG_MAC80211_MESH
39886b61 1087 u32 changed = 0;
77ee7c89
JB		 1088
1089 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1090 switch (params->plink_state) {
57cf8043 1091 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1092 if (sta->plink_state != NL80211_PLINK_ESTAB)
1093 changed = mesh_plink_inc_estab_count(
1094 sdata);
1095 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1096
1097 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1098 changed |= ieee80211_mps_set_sta_local_pm(sta,
1099 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1100 break;
1101 case NL80211_PLINK_LISTEN:
57cf8043 1102 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1103 case NL80211_PLINK_OPN_SNT:
1104 case NL80211_PLINK_OPN_RCVD:
1105 case NL80211_PLINK_CNF_RCVD:
1106 case NL80211_PLINK_HOLDING:
1107 if (sta->plink_state == NL80211_PLINK_ESTAB)
1108 changed = mesh_plink_dec_estab_count(
1109 sdata);
9c3990aa 1110 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1111
1112 ieee80211_mps_sta_status_update(sta);
446075d7
MP		 1113 changed |= ieee80211_mps_set_sta_local_pm(sta,
1114 NL80211_MESH_POWER_UNKNOWN);
9c3990aa
JC		 1115 break;
1116 default:
1117 /* nothing */
1118 break;
1119 }
77ee7c89
JB		 1120 }
1121
1122 switch (params->plink_action) {
1123 case NL80211_PLINK_ACTION_NO_ACTION:
1124 /* nothing */
1125 break;
1126 case NL80211_PLINK_ACTION_OPEN:
1127 changed |= mesh_plink_open(sta);
1128 break;
1129 case NL80211_PLINK_ACTION_BLOCK:
1130 changed |= mesh_plink_block(sta);
1131 break;
1617bab8 1132 }
3f52b7e3
MP		 1133
1134 if (params->local_pm)
39886b61
TP		 1135 changed |=
1136 ieee80211_mps_set_sta_local_pm(sta,
1137 params->local_pm);
6c751ef8 1138 ieee80211_mbss_info_change_notify(sdata, changed);
4daf50f2 1139#endif
902acc78 1140 }
d9a7ddb0 1141
68885a54
AN		 1142 /* set the STA state after all sta info from usermode has been set */
1143 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1144 ret = sta_apply_auth_flags(local, sta, mask, set);
1145 if (ret)
1146 return ret;
1147 }
1148
d9a7ddb0 1149 return 0;
4fd6931e
JB		 1150}
1151
1152static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1153 const u8 *mac,
1154 struct station_parameters *params)
4fd6931e 1155{
14db74bc 1156 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1157 struct sta_info *sta;
1158 struct ieee80211_sub_if_data *sdata;
73651ee6 1159 int err;
b8d476c8 1160 int layer2_update;
4fd6931e 1161
4fd6931e
JB		 1162 if (params->vlan) {
1163 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1164
05c914fe
JB		 1165 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1166 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1167 return -EINVAL;
1168 } else
1169 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1170
b203ca39 1171 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1172 return -EINVAL;
1173
1174 if (is_multicast_ether_addr(mac))
1175 return -EINVAL;
1176
1177 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1178 if (!sta)
1179 return -ENOMEM;
4fd6931e 1180
d582cffb
JB		 1181 /*
1182 * defaults -- if userspace wants something else we'll
1183 * change it accordingly in sta_apply_parameters()
1184 */
77ee7c89
JB		 1185 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1186 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1187 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
0c4972cc
AN		 1188 } else {
1189 sta->sta.tdls = true;
77ee7c89 1190 }
4fd6931e 1191
d9a7ddb0
JB		 1192 err = sta_apply_parameters(local, sta, params);
1193 if (err) {
1194 sta_info_free(local, sta);
1195 return err;
1196 }
4fd6931e 1197
d64cf63e 1198 /*
77ee7c89
JB		 1199 * for TDLS, rate control should be initialized only when
1200 * rates are known and station is marked authorized
d64cf63e
AN		 1201 */
1202 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1203 rate_control_rate_init(sta);
4fd6931e 1204
b8d476c8
JM		 1205 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1206 sdata->vif.type == NL80211_IFTYPE_AP;
1207
34e89507 1208 err = sta_info_insert_rcu(sta);
73651ee6 1209 if (err) {
73651ee6
JB		 1210 rcu_read_unlock();
1211 return err;
1212 }
1213
b8d476c8 1214 if (layer2_update)
73651ee6
JB		 1215 ieee80211_send_layer2_update(sta);
1216
1217 rcu_read_unlock();
1218
4fd6931e
JB		 1219 return 0;
1220}
1221
1222static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1223 const u8 *mac)
4fd6931e 1224{
14db74bc 1225 struct ieee80211_sub_if_data *sdata;
4fd6931e 1226
14db74bc
JB		 1227 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1228
34e89507
JB		 1229 if (mac)
1230 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 1231
b998e8bb 1232 sta_info_flush(sdata);
4fd6931e
JB		 1233 return 0;
1234}
1235
1236static int ieee80211_change_station(struct wiphy *wiphy,
3b3a0162 1237 struct net_device *dev, const u8 *mac,
4fd6931e
JB		 1238 struct station_parameters *params)
1239{
abe60632 1240 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1241 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1242 struct sta_info *sta;
1243 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1244 enum cfg80211_station_type statype;
35b88623 1245 int err;
4fd6931e 1246
87be1e1e 1247 mutex_lock(&local->sta_mtx);
98dd6a57 1248
0e5ded5a 1249 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1250 if (!sta) {
77ee7c89
JB		 1251 err = -ENOENT;
1252 goto out_err;
98dd6a57 1253 }
4fd6931e 1254
77ee7c89
JB		 1255 switch (sdata->vif.type) {
1256 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1257 if (sdata->u.mesh.user_mpm)
eef941e6 1258 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1259 else
eef941e6 1260 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1261 break;
1262 case NL80211_IFTYPE_ADHOC:
1263 statype = CFG80211_STA_IBSS;
1264 break;
1265 case NL80211_IFTYPE_STATION:
1266 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1267 statype = CFG80211_STA_AP_STA;
1268 break;
1269 }
1270 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1271 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1272 else
1273 statype = CFG80211_STA_TDLS_PEER_SETUP;
1274 break;
1275 case NL80211_IFTYPE_AP:
1276 case NL80211_IFTYPE_AP_VLAN:
1277 statype = CFG80211_STA_AP_CLIENT;
1278 break;
1279 default:
1280 err = -EOPNOTSUPP;
1281 goto out_err;
bdd90d5e
JB		 1282 }
1283
77ee7c89
JB		 1284 err = cfg80211_check_station_change(wiphy, params, statype);
1285 if (err)
1286 goto out_err;
1287
d0709a65 1288 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1289 bool prev_4addr = false;
1290 bool new_4addr = false;
1291
4fd6931e
JB		 1292 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1293
9bc383de 1294 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1295 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1296 err = -EBUSY;
1297 goto out_err;
3305443c 1298 }
f14543ee 1299
cf778b00 1300 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1301 new_4addr = true;
1302 }
1303
1304 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1305 sta->sdata->u.vlan.sta) {
0c2bef46 1306 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
7e3ed02c 1307 prev_4addr = true;
f14543ee
FF		 1308 }
1309
14db74bc 1310 sta->sdata = vlansdata;
7e3ed02c
FF		 1311
1312 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1313 prev_4addr != new_4addr) {
1314 if (new_4addr)
1315 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1316 else
1317 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1318 }
1319
4fd6931e
JB		 1320 ieee80211_send_layer2_update(sta);
1321 }
1322
35b88623 1323 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1324 if (err)
1325 goto out_err;
4fd6931e 1326
77ee7c89
JB		 1327 /* When peer becomes authorized, init rate control as well */
1328 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1329 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
d64cf63e
AN		 1330 rate_control_rate_init(sta);
1331
87be1e1e 1332 mutex_unlock(&local->sta_mtx);
98dd6a57 1333
687da132
EG		 1334 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1335 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1336 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1337 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1338 sta_info_tx_streams(sta) != 1) {
1339 ht_dbg(sta->sdata,
1340 "%pM just authorized and MIMO capable - update SMPS\n",
1341 sta->sta.addr);
1342 ieee80211_send_smps_action(sta->sdata,
1343 sta->sdata->bss->req_smps,
1344 sta->sta.addr,
1345 sta->sdata->vif.bss_conf.bssid);
1346 }
1347
808118cb 1348 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1349 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1350 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1351 ieee80211_recalc_ps_vif(sdata);
1352 }
77ee7c89 1353
4fd6931e 1354 return 0;
77ee7c89
JB		 1355out_err:
1356 mutex_unlock(&local->sta_mtx);
1357 return err;
4fd6931e
JB		 1358}
1359
c5dd9c2b
LCC		 1360#ifdef CONFIG_MAC80211_MESH
1361static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1362 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1363{
14db74bc 1364 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1365 struct mesh_path *mpath;
1366 struct sta_info *sta;
c5dd9c2b 1367
14db74bc
JB		 1368 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1369
d0709a65 1370 rcu_read_lock();
abe60632 1371 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1372 if (!sta) {
1373 rcu_read_unlock();
c5dd9c2b 1374 return -ENOENT;
d0709a65 1375 }
c5dd9c2b 1376
ae76eef0
BC		 1377 mpath = mesh_path_add(sdata, dst);
1378 if (IS_ERR(mpath)) {
d0709a65 1379 rcu_read_unlock();
ae76eef0 1380 return PTR_ERR(mpath);
d0709a65 1381 }
c5dd9c2b 1382
c5dd9c2b 1383 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1384
c5dd9c2b
LCC		 1385 rcu_read_unlock();
1386 return 0;
1387}
1388
1389static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1390 const u8 *dst)
c5dd9c2b 1391{
f698d856
JBG		 1392 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1393
c5dd9c2b 1394 if (dst)
bf7cd94d 1395 return mesh_path_del(sdata, dst);
c5dd9c2b 1396
ece1a2e7 1397 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1398 return 0;
1399}
1400
3b3a0162
JB		 1401static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1402 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1403{
14db74bc 1404 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1405 struct mesh_path *mpath;
1406 struct sta_info *sta;
1407
14db74bc
JB		 1408 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1409
d0709a65
JB		 1410 rcu_read_lock();
1411
abe60632 1412 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1413 if (!sta) {
1414 rcu_read_unlock();
c5dd9c2b 1415 return -ENOENT;
d0709a65 1416 }
c5dd9c2b 1417
bf7cd94d 1418 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1419 if (!mpath) {
1420 rcu_read_unlock();
c5dd9c2b
LCC		 1421 return -ENOENT;
1422 }
1423
1424 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1425
c5dd9c2b
LCC		 1426 rcu_read_unlock();
1427 return 0;
1428}
1429
1430static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1431 struct mpath_info *pinfo)
1432{
a3836e02
JB		 1433 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1434
1435 if (next_hop_sta)
1436 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1437 else
1438 memset(next_hop, 0, ETH_ALEN);
1439
7ce8c7a3
LAYS		 1440 memset(pinfo, 0, sizeof(*pinfo));
1441
f5ea9120
JB		 1442 pinfo->generation = mesh_paths_generation;
1443
c5dd9c2b 1444 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1445 MPATH_INFO_SN |
c5dd9c2b
LCC		 1446 MPATH_INFO_METRIC |
1447 MPATH_INFO_EXPTIME |
1448 MPATH_INFO_DISCOVERY_TIMEOUT |
1449 MPATH_INFO_DISCOVERY_RETRIES |
1450 MPATH_INFO_FLAGS;
1451
1452 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1453 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1454 pinfo->metric = mpath->metric;
1455 if (time_before(jiffies, mpath->exp_time))
1456 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1457 pinfo->discovery_timeout =
1458 jiffies_to_msecs(mpath->discovery_timeout);
1459 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1460 if (mpath->flags & MESH_PATH_ACTIVE)
1461 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1462 if (mpath->flags & MESH_PATH_RESOLVING)
1463 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1464 if (mpath->flags & MESH_PATH_SN_VALID)
1465 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1466 if (mpath->flags & MESH_PATH_FIXED)
1467 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1468 if (mpath->flags & MESH_PATH_RESOLVED)
1469 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1470}
1471
1472static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1473 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1474
1475{
14db74bc 1476 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1477 struct mesh_path *mpath;
1478
14db74bc
JB		 1479 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1480
c5dd9c2b 1481 rcu_read_lock();
bf7cd94d 1482 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1483 if (!mpath) {
1484 rcu_read_unlock();
1485 return -ENOENT;
1486 }
1487 memcpy(dst, mpath->dst, ETH_ALEN);
1488 mpath_set_pinfo(mpath, next_hop, pinfo);
1489 rcu_read_unlock();
1490 return 0;
1491}
1492
1493static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1494 int idx, u8 *dst, u8 *next_hop,
1495 struct mpath_info *pinfo)
c5dd9c2b 1496{
14db74bc 1497 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1498 struct mesh_path *mpath;
1499
14db74bc
JB		 1500 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1501
c5dd9c2b 1502 rcu_read_lock();
bf7cd94d 1503 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1504 if (!mpath) {
1505 rcu_read_unlock();
1506 return -ENOENT;
1507 }
1508 memcpy(dst, mpath->dst, ETH_ALEN);
1509 mpath_set_pinfo(mpath, next_hop, pinfo);
1510 rcu_read_unlock();
1511 return 0;
1512}
93da9cc1 1513
24bdd9f4 1514static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1515 struct net_device *dev,
1516 struct mesh_config *conf)
1517{
1518 struct ieee80211_sub_if_data *sdata;
1519 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1520
93da9cc1 1521 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1522 return 0;
1523}
1524
1525static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1526{
1527 return (mask >> (parm-1)) & 0x1;
1528}
1529
c80d545d
JC		 1530static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1531 const struct mesh_setup *setup)
1532{
1533 u8 *new_ie;
1534 const u8 *old_ie;
4bb62344
CYY		 1535 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1536 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1537
581a8b0f 1538 /* allocate information elements */
c80d545d 1539 new_ie = NULL;
581a8b0f 1540 old_ie = ifmsh->ie;
c80d545d 1541
581a8b0f
JC		 1542 if (setup->ie_len) {
1543 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1544 GFP_KERNEL);
1545 if (!new_ie)
1546 return -ENOMEM;
1547 }
581a8b0f
JC		 1548 ifmsh->ie_len = setup->ie_len;
1549 ifmsh->ie = new_ie;
1550 kfree(old_ie);
c80d545d
JC		 1551
1552 /* now copy the rest of the setup parameters */
1553 ifmsh->mesh_id_len = setup->mesh_id_len;
1554 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1555 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1556 ifmsh->mesh_pp_id = setup->path_sel_proto;
1557 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1558 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1559 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1560 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1561 if (setup->is_authenticated)
1562 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1563 if (setup->is_secure)
1564 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1565
4bb62344
CYY		 1566 /* mcast rate setting in Mesh Node */
1567 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1568 sizeof(setup->mcast_rate));
ffb3cf30 1569 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1570
9bdbf04d
MP		 1571 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1572 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1573
c80d545d
JC		 1574 return 0;
1575}
1576
24bdd9f4 1577static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1578 struct net_device *dev, u32 mask,
1579 const struct mesh_config *nconf)
93da9cc1 1580{
1581 struct mesh_config *conf;
1582 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1583 struct ieee80211_if_mesh *ifmsh;
1584
93da9cc1 1585 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1586 ifmsh = &sdata->u.mesh;
93da9cc1 1587
93da9cc1 1588 /* Set the config options which we are interested in setting */
1589 conf = &(sdata->u.mesh.mshcfg);
1590 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1591 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1592 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1593 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1594 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1595 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1596 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1597 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1598 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1599 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1600 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1601 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1602 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1603 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1604 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1605 if (ifmsh->user_mpm)
1606 return -EBUSY;
93da9cc1 1607 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1608 }
d299a1f2
JC		 1609 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1610 conf->dot11MeshNbrOffsetMaxNeighbor =
1611 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1612 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1613 conf->dot11MeshHWMPmaxPREQretries =
1614 nconf->dot11MeshHWMPmaxPREQretries;
1615 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1616 conf->path_refresh_time = nconf->path_refresh_time;
1617 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1618 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1619 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1620 conf->dot11MeshHWMPactivePathTimeout =
1621 nconf->dot11MeshHWMPactivePathTimeout;
1622 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1623 conf->dot11MeshHWMPpreqMinInterval =
1624 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1625 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1626 conf->dot11MeshHWMPperrMinInterval =
1627 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1628 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1629 mask))
1630 conf->dot11MeshHWMPnetDiameterTraversalTime =
1631 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1632 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1633 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1634 ieee80211_mesh_root_setup(ifmsh);
1635 }
16dd7267 1636 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1637 /* our current gate announcement implementation rides on root
1638 * announcements, so require this ifmsh to also be a root node
1639 * */
1640 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1641 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1642 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1643 ieee80211_mesh_root_setup(ifmsh);
1644 }
16dd7267
JC		 1645 conf->dot11MeshGateAnnouncementProtocol =
1646 nconf->dot11MeshGateAnnouncementProtocol;
1647 }
a4f606ea 1648 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1649 conf->dot11MeshHWMPRannInterval =
1650 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1651 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1652 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1653 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1654 /* our RSSI threshold implementation is supported only for
1655 * devices that report signal in dBm.
1656 */
1657 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1658 return -ENOTSUPP;
1659 conf->rssi_threshold = nconf->rssi_threshold;
1660 }
70c33eaa
AN		 1661 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1662 conf->ht_opmode = nconf->ht_opmode;
1663 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1664 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1665 }
ac1073a6
CYY		 1666 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1667 conf->dot11MeshHWMPactivePathToRootTimeout =
1668 nconf->dot11MeshHWMPactivePathToRootTimeout;
1669 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1670 conf->dot11MeshHWMProotInterval =
1671 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1672 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1673 conf->dot11MeshHWMPconfirmationInterval =
1674 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1675 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1676 conf->power_mode = nconf->power_mode;
1677 ieee80211_mps_local_status_update(sdata);
1678 }
2b5e1967 1679 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1680 conf->dot11MeshAwakeWindowDuration =
1681 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1682 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1683 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1684 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1685 return 0;
1686}
1687
29cbe68c
JB		 1688static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1689 const struct mesh_config *conf,
1690 const struct mesh_setup *setup)
1691{
1692 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1693 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1694 int err;
29cbe68c 1695
c80d545d
JC		 1696 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1697 err = copy_mesh_setup(ifmsh, setup);
1698 if (err)
1699 return err;
cc1d2806 1700
04ecd257
JB		 1701 /* can mesh use other SMPS modes? */
1702 sdata->smps_mode = IEEE80211_SMPS_OFF;
1703 sdata->needed_rx_chains = sdata->local->rx_chains;
1704
34a3740d 1705 mutex_lock(&sdata->local->mtx);
4bf88530 1706 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1707 IEEE80211_CHANCTX_SHARED);
34a3740d 1708 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1709 if (err)
1710 return err;
1711
2b5e1967 1712 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1713}
1714
1715static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1716{
1717 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1718
1719 ieee80211_stop_mesh(sdata);
34a3740d 1720 mutex_lock(&sdata->local->mtx);
55de908a 1721 ieee80211_vif_release_channel(sdata);
34a3740d 1722 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1723
1724 return 0;
1725}
c5dd9c2b
LCC		 1726#endif
1727
9f1ba906
JM		 1728static int ieee80211_change_bss(struct wiphy *wiphy,
1729 struct net_device *dev,
1730 struct bss_parameters *params)
1731{
55de908a
JB		 1732 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1733 enum ieee80211_band band;
9f1ba906
JM		 1734 u32 changed = 0;
1735
7ca133bc 1736 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1737 return -ENOENT;
1738
1739 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1740
9f1ba906 1741 if (params->use_cts_prot >= 0) {
bda3933a 1742 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1743 changed |= BSS_CHANGED_ERP_CTS_PROT;
1744 }
1745 if (params->use_short_preamble >= 0) {
bda3933a 1746 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1747 params->use_short_preamble;
1748 changed |= BSS_CHANGED_ERP_PREAMBLE;
1749 }
43d35343
FF		 1750
1751 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1752 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1753 sdata->vif.bss_conf.use_short_slot = true;
1754 changed |= BSS_CHANGED_ERP_SLOT;
1755 }
1756
9f1ba906 1757 if (params->use_short_slot_time >= 0) {
bda3933a 1758 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1759 params->use_short_slot_time;
1760 changed |= BSS_CHANGED_ERP_SLOT;
1761 }
1762
90c97a04 1763 if (params->basic_rates) {
2103dec1
SW		 1764 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1765 wiphy->bands[band],
1766 params->basic_rates,
1767 params->basic_rates_len,
1768 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 1769 changed |= BSS_CHANGED_BASIC_RATES;
1770 }
1771
7b7b5e56
FF		 1772 if (params->ap_isolate >= 0) {
1773 if (params->ap_isolate)
1774 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1775 else
1776 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1777 }
1778
80d7e403
HS		 1779 if (params->ht_opmode >= 0) {
1780 sdata->vif.bss_conf.ht_operation_mode =
1781 (u16) params->ht_opmode;
1782 changed |= BSS_CHANGED_HT;
1783 }
1784
339afbf4 1785 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1786 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1787 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1788 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1789 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1790 changed |= BSS_CHANGED_P2P_PS;
1791 }
1792
67baf663
JD		 1793 if (params->p2p_opp_ps > 0) {
1794 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1795 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1796 changed |= BSS_CHANGED_P2P_PS;
1797 } else if (params->p2p_opp_ps == 0) {
1798 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1799 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1800 changed |= BSS_CHANGED_P2P_PS;
1801 }
1802
9f1ba906
JM		 1803 ieee80211_bss_info_change_notify(sdata, changed);
1804
1805 return 0;
1806}
1807
31888487 1808static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1809 struct net_device *dev,
31888487
JM		 1810 struct ieee80211_txq_params *params)
1811{
1812 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1813 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1814 struct ieee80211_tx_queue_params p;
1815
1816 if (!local->ops->conf_tx)
1817 return -EOPNOTSUPP;
1818
54bcbc69
JB		 1819 if (local->hw.queues < IEEE80211_NUM_ACS)
1820 return -EOPNOTSUPP;
1821
31888487
JM		 1822 memset(&p, 0, sizeof(p));
1823 p.aifs = params->aifs;
1824 p.cw_max = params->cwmax;
1825 p.cw_min = params->cwmin;
1826 p.txop = params->txop;
ab13315a
KV		 1827
1828 /*
1829 * Setting tx queue params disables u-apsd because it's only
1830 * called in master mode.
1831 */
1832 p.uapsd = false;
1833
a3304b0a
JB		 1834 sdata->tx_conf[params->ac] = p;
1835 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 1836 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 1837 "failed to set TX queue parameters for AC %d\n",
1838 params->ac);
31888487
JM		 1839 return -EINVAL;
1840 }
1841
7d25745d
JB		 1842 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1843
31888487
JM		 1844 return 0;
1845}
1846
665af4fc 1847#ifdef CONFIG_PM
ff1b6e69
JB		 1848static int ieee80211_suspend(struct wiphy *wiphy,
1849 struct cfg80211_wowlan *wowlan)
665af4fc 1850{
eecc4800 1851 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1852}
1853
1854static int ieee80211_resume(struct wiphy *wiphy)
1855{
1856 return __ieee80211_resume(wiphy_priv(wiphy));
1857}
1858#else
1859#define ieee80211_suspend NULL
1860#define ieee80211_resume NULL
1861#endif
1862
2a519311 1863static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 1864 struct cfg80211_scan_request *req)
1865{
fd014284
JB		 1866 struct ieee80211_sub_if_data *sdata;
1867
1868 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 1869
2ca27bcf
JB		 1870 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1871 case NL80211_IFTYPE_STATION:
1872 case NL80211_IFTYPE_ADHOC:
1873 case NL80211_IFTYPE_MESH_POINT:
1874 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 1875 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 1876 break;
1877 case NL80211_IFTYPE_P2P_GO:
1878 if (sdata->local->ops->hw_scan)
1879 break;
e9d7732e
JB		 1880 /*
1881 * FIXME: implement NoA while scanning in software,
1882 * for now fall through to allow scanning only when
1883 * beaconing hasn't been configured yet
1884 */
2ca27bcf 1885 case NL80211_IFTYPE_AP:
5c95b940
AQ		 1886 /*
1887 * If the scan has been forced (and the driver supports
1888 * forcing), don't care about being beaconing already.
1889 * This will create problems to the attached stations (e.g. all
1890 * the frames sent while scanning on other channel will be
1891 * lost)
1892 */
1893 if (sdata->u.ap.beacon &&
1894 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1895 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 1896 return -EOPNOTSUPP;
1897 break;
1898 default:
1899 return -EOPNOTSUPP;
1900 }
2a519311
JB		 1901
1902 return ieee80211_request_scan(sdata, req);
1903}
1904
79f460ca
LC		 1905static int
1906ieee80211_sched_scan_start(struct wiphy *wiphy,
1907 struct net_device *dev,
1908 struct cfg80211_sched_scan_request *req)
1909{
1910 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1911
1912 if (!sdata->local->ops->sched_scan_start)
1913 return -EOPNOTSUPP;
1914
1915 return ieee80211_request_sched_scan_start(sdata, req);
1916}
1917
1918static int
85a9994a 1919ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 1920{
1921 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1922
1923 if (!sdata->local->ops->sched_scan_stop)
1924 return -EOPNOTSUPP;
1925
85a9994a 1926 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 1927}
1928
636a5d36
JM		 1929static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1930 struct cfg80211_auth_request *req)
1931{
77fdaa12 1932 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1933}
1934
1935static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1936 struct cfg80211_assoc_request *req)
1937{
77fdaa12 1938 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1939}
1940
1941static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 1942 struct cfg80211_deauth_request *req)
636a5d36 1943{
63c9c5e7 1944 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1945}
1946
1947static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 1948 struct cfg80211_disassoc_request *req)
636a5d36 1949{
63c9c5e7 1950 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1951}
1952
af8cdcd8
JB		 1953static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1954 struct cfg80211_ibss_params *params)
1955{
55de908a 1956 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 1957}
1958
1959static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1960{
55de908a 1961 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 1962}
1963
391e53e3
AQ		 1964static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
1965 int rate[IEEE80211_NUM_BANDS])
1966{
1967 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1968
9887dbf5
CD		 1969 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
1970 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 1971
1972 return 0;
1973}
1974
b9a5f8ca
JM		 1975static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1976{
1977 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 1978 int err;
b9a5f8ca 1979
f23a4780
AN		 1980 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1981 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1982
1983 if (err)
1984 return err;
1985 }
1986
310bc676
LT		 1987 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1988 err = drv_set_coverage_class(local, wiphy->coverage_class);
1989
1990 if (err)
1991 return err;
1992 }
1993
b9a5f8ca 1994 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 1995 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 1996
24487981
JB		 1997 if (err)
1998 return err;
b9a5f8ca
JM		 1999 }
2000
8bc83c24
JB		 2001 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2002 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2003 return -EINVAL;
b9a5f8ca 2004 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2005 }
2006 if (changed & WIPHY_PARAM_RETRY_LONG) {
2007 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2008 return -EINVAL;
b9a5f8ca 2009 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2010 }
b9a5f8ca
JM		 2011 if (changed &
2012 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2013 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2014
2015 return 0;
2016}
2017
7643a2c3 2018static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2019 struct wireless_dev *wdev,
fa61cf70 2020 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2021{
2022 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2023 struct ieee80211_sub_if_data *sdata;
7643a2c3 2024
1ea6f9c0
JB		 2025 if (wdev) {
2026 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2027
2028 switch (type) {
2029 case NL80211_TX_POWER_AUTOMATIC:
2030 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2031 break;
2032 case NL80211_TX_POWER_LIMITED:
2033 case NL80211_TX_POWER_FIXED:
2034 if (mbm < 0 || (mbm % 100))
2035 return -EOPNOTSUPP;
2036 sdata->user_power_level = MBM_TO_DBM(mbm);
2037 break;
2038 }
2039
2040 ieee80211_recalc_txpower(sdata);
2041
2042 return 0;
2043 }
55de908a 2044
7643a2c3 2045 switch (type) {
fa61cf70 2046 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2047 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
7643a2c3 2048 break;
fa61cf70 2049 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2050 case NL80211_TX_POWER_FIXED:
2051 if (mbm < 0 || (mbm % 100))
2052 return -EOPNOTSUPP;
fa61cf70 2053 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2054 break;
7643a2c3
JB		 2055 }
2056
1ea6f9c0
JB		 2057 mutex_lock(&local->iflist_mtx);
2058 list_for_each_entry(sdata, &local->interfaces, list)
2059 sdata->user_power_level = local->user_power_level;
2060 list_for_each_entry(sdata, &local->interfaces, list)
2061 ieee80211_recalc_txpower(sdata);
2062 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2063
2064 return 0;
2065}
2066
c8442118
JB		 2067static int ieee80211_get_tx_power(struct wiphy *wiphy,
2068 struct wireless_dev *wdev,
2069 int *dbm)
7643a2c3
JB		 2070{
2071 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2072 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2073
1ea6f9c0
JB		 2074 if (!local->use_chanctx)
2075 *dbm = local->hw.conf.power_level;
2076 else
2077 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2078
7643a2c3
JB		 2079 return 0;
2080}
2081
ab737a4f 2082static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2083 const u8 *addr)
ab737a4f
JB		 2084{
2085 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2086
2087 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2088
2089 return 0;
2090}
2091
1f87f7d3
JB		 2092static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2093{
2094 struct ieee80211_local *local = wiphy_priv(wiphy);
2095
2096 drv_rfkill_poll(local);
2097}
2098
aff89a9b 2099#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2100static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2101 struct wireless_dev *wdev,
2102 void *data, int len)
aff89a9b
JB		 2103{
2104 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2105 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2106
2107 if (!local->ops->testmode_cmd)
2108 return -EOPNOTSUPP;
2109
52981cd7
DS		 2110 if (wdev) {
2111 struct ieee80211_sub_if_data *sdata;
2112
2113 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2114 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2115 vif = &sdata->vif;
2116 }
2117
2118 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2119}
71063f0e
WYG		 2120
2121static int ieee80211_testmode_dump(struct wiphy *wiphy,
2122 struct sk_buff *skb,
2123 struct netlink_callback *cb,
2124 void *data, int len)
2125{
2126 struct ieee80211_local *local = wiphy_priv(wiphy);
2127
2128 if (!local->ops->testmode_dump)
2129 return -EOPNOTSUPP;
2130
2131 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2132}
aff89a9b
JB		 2133#endif
2134
687da132
EG		 2135int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2136 enum ieee80211_smps_mode smps_mode)
2137{
2138 struct sta_info *sta;
2139 enum ieee80211_smps_mode old_req;
2140 int i;
2141
2142 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2143 return -EINVAL;
2144
2145 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2146 return 0;
2147
2148 old_req = sdata->u.ap.req_smps;
2149 sdata->u.ap.req_smps = smps_mode;
2150
2151 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2152 if (old_req == smps_mode ||
2153 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2154 return 0;
2155
2156 /* If no associated stations, there's no need to do anything */
2157 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2158 sdata->smps_mode = smps_mode;
2159 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2160 return 0;
2161 }
2162
2163 ht_dbg(sdata,
2164 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2165 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2166
2167 mutex_lock(&sdata->local->sta_mtx);
2168 for (i = 0; i < STA_HASH_SIZE; i++) {
2169 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2170 lockdep_is_held(&sdata->local->sta_mtx));
2171 sta;
2172 sta = rcu_dereference_protected(sta->hnext,
2173 lockdep_is_held(&sdata->local->sta_mtx))) {
2174 /*
2175 * Only stations associated to our AP and
2176 * associated VLANs
2177 */
2178 if (sta->sdata->bss != &sdata->u.ap)
2179 continue;
2180
2181 /* This station doesn't support MIMO - skip it */
2182 if (sta_info_tx_streams(sta) == 1)
2183 continue;
2184
2185 /*
2186 * Don't wake up a STA just to send the action frame
2187 * unless we are getting more restrictive.
2188 */
2189 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2190 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2191 smps_mode)) {
2192 ht_dbg(sdata,
2193 "Won't send SMPS to sleeping STA %pM\n",
2194 sta->sta.addr);
2195 continue;
2196 }
2197
2198 /*
2199 * If the STA is not authorized, wait until it gets
2200 * authorized and the action frame will be sent then.
2201 */
2202 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2203 continue;
2204
2205 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2206 ieee80211_send_smps_action(sdata, smps_mode,
2207 sta->sta.addr,
2208 sdata->vif.bss_conf.bssid);
2209 }
2210 }
2211 mutex_unlock(&sdata->local->sta_mtx);
2212
2213 sdata->smps_mode = smps_mode;
2214 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2215
2216 return 0;
2217}
2218
2219int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2220 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2221{
2222 const u8 *ap;
2223 enum ieee80211_smps_mode old_req;
2224 int err;
2225
8d61ffa5 2226 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2227
687da132
EG		 2228 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2229 return -EINVAL;
2230
0f78231b
JB		 2231 old_req = sdata->u.mgd.req_smps;
2232 sdata->u.mgd.req_smps = smps_mode;
2233
2234 if (old_req == smps_mode &&
2235 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2236 return 0;
2237
2238 /*
2239 * If not associated, or current association is not an HT
04ecd257
JB		 2240 * association, there's no need to do anything, just store
2241 * the new value until we associate.
0f78231b
JB		 2242 */
2243 if (!sdata->u.mgd.associated ||
4bf88530 2244 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2245 return 0;
0f78231b 2246
0c1ad2ca 2247 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2248
2249 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2250 if (sdata->u.mgd.powersave)
2251 smps_mode = IEEE80211_SMPS_DYNAMIC;
2252 else
2253 smps_mode = IEEE80211_SMPS_OFF;
2254 }
2255
2256 /* send SM PS frame to AP */
2257 err = ieee80211_send_smps_action(sdata, smps_mode,
2258 ap, ap);
2259 if (err)
2260 sdata->u.mgd.req_smps = old_req;
2261
2262 return err;
2263}
2264
bc92afd9
JB		 2265static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2266 bool enabled, int timeout)
2267{
2268 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2269 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2270
2d3db210 2271 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2272 return -EOPNOTSUPP;
2273
bc92afd9
JB		 2274 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2275 return -EOPNOTSUPP;
2276
2277 if (enabled == sdata->u.mgd.powersave &&
ff616381 2278 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2279 return 0;
2280
2281 sdata->u.mgd.powersave = enabled;
ff616381 2282 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2283
0f78231b 2284 /* no change, but if automatic follow powersave */
ed405be5 2285 sdata_lock(sdata);
687da132 2286 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2287 sdata_unlock(sdata);
0f78231b 2288
bc92afd9
JB		 2289 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2290 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2291
2292 ieee80211_recalc_ps(local, -1);
ab095877 2293 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2294
2295 return 0;
2296}
2297
a97c13c3
JO		 2298static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2299 struct net_device *dev,
2300 s32 rssi_thold, u32 rssi_hyst)
2301{
2302 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2303 struct ieee80211_vif *vif = &sdata->vif;
2304 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2305
a97c13c3
JO		 2306 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2307 rssi_hyst == bss_conf->cqm_rssi_hyst)
2308 return 0;
2309
2310 bss_conf->cqm_rssi_thold = rssi_thold;
2311 bss_conf->cqm_rssi_hyst = rssi_hyst;
2312
2313 /* tell the driver upon association, unless already associated */
ea086359
JB		 2314 if (sdata->u.mgd.associated &&
2315 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2316 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2317
2318 return 0;
2319}
2320
9930380f
JB		 2321static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2322 struct net_device *dev,
2323 const u8 *addr,
2324 const struct cfg80211_bitrate_mask *mask)
2325{
2326 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2327 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2328 int i, ret;
2c7e6bc9 2329
554a43d5
EP		 2330 if (!ieee80211_sdata_running(sdata))
2331 return -ENETDOWN;
2332
bdbfd6b5
SM		 2333 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2334 ret = drv_set_bitrate_mask(local, sdata, mask);
2335 if (ret)
2336 return ret;
2337 }
9930380f 2338
19468413 2339 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2340 struct ieee80211_supported_band *sband = wiphy->bands[i];
2341 int j;
2342
37eb0b16 2343 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2344 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2345 sizeof(mask->control[i].ht_mcs));
2ffbe6d3
FF		 2346
2347 sdata->rc_has_mcs_mask[i] = false;
2348 if (!sband)
2349 continue;
2350
2351 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2352 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2353 sdata->rc_has_mcs_mask[i] = true;
2354 break;
2355 }
19468413 2356 }
9930380f 2357
37eb0b16 2358 return 0;
9930380f
JB		 2359}
2360
2eb278e0
JB		 2361static int ieee80211_start_roc_work(struct ieee80211_local *local,
2362 struct ieee80211_sub_if_data *sdata,
2363 struct ieee80211_channel *channel,
2eb278e0 2364 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2365 struct sk_buff *txskb,
2366 enum ieee80211_roc_type type)
2eb278e0
JB		 2367{
2368 struct ieee80211_roc_work *roc, *tmp;
2369 bool queued = false;
21f83589 2370 int ret;
21f83589
JB		 2371
2372 lockdep_assert_held(&local->mtx);
2373
fe57d9f5
JB		 2374 if (local->use_chanctx && !local->ops->remain_on_channel)
2375 return -EOPNOTSUPP;
2376
2eb278e0
JB		 2377 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2378 if (!roc)
2379 return -ENOMEM;
2380
2fae062e
IP		 2381 /*
2382 * If the duration is zero, then the driver
2383 * wouldn't actually do anything. Set it to
2384 * 10 for now.
2385 *
2386 * TODO: cancel the off-channel operation
2387 * when we get the SKB's TX status and
2388 * the wait time was zero before.
2389 */
2390 if (!duration)
2391 duration = 10;
2392
2eb278e0 2393 roc->chan = channel;
2eb278e0
JB		 2394 roc->duration = duration;
2395 roc->req_duration = duration;
2396 roc->frame = txskb;
d339d5ca 2397 roc->type = type;
2eb278e0
JB		 2398 roc->mgmt_tx_cookie = (unsigned long)txskb;
2399 roc->sdata = sdata;
2400 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2401 INIT_LIST_HEAD(&roc->dependents);
2402
2f617435
EP		 2403 /*
2404 * cookie is either the roc cookie (for normal roc)
2405 * or the SKB (for mgmt TX)
2406 */
2407 if (!txskb) {
2408 /* local->mtx protects this */
2409 local->roc_cookie_counter++;
2410 roc->cookie = local->roc_cookie_counter;
2411 /* wow, you wrapped 64 bits ... more likely a bug */
2412 if (WARN_ON(roc->cookie == 0)) {
2413 roc->cookie = 1;
2414 local->roc_cookie_counter++;
2415 }
2416 *cookie = roc->cookie;
2417 } else {
2418 *cookie = (unsigned long)txskb;
2419 }
2420
2eb278e0 2421 /* if there's one pending or we're scanning, queue this one */
164eb02d
SW		 2422 if (!list_empty(&local->roc_list) ||
2423 local->scanning || local->radar_detect_enabled)
2eb278e0
JB		 2424 goto out_check_combine;
2425
2426 /* if not HW assist, just queue & schedule work */
2427 if (!local->ops->remain_on_channel) {
2428 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2429 goto out_queue;
2430 }
2431
2432 /* otherwise actually kick it off here (for error handling) */
2433
d339d5ca 2434 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2435 if (ret) {
2eb278e0
JB		 2436 kfree(roc);
2437 return ret;
21f83589
JB		 2438 }
2439
2eb278e0
JB		 2440 roc->started = true;
2441 goto out_queue;
2442
2443 out_check_combine:
2444 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2445 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2446 continue;
2447
2448 /*
2449 * Extend this ROC if possible:
2450 *
2451 * If it hasn't started yet, just increase the duration
2452 * and add the new one to the list of dependents.
d339d5ca
IP		 2453 * If the type of the new ROC has higher priority, modify the
2454 * type of the previous one to match that of the new one.
2eb278e0
JB		 2455 */
2456 if (!tmp->started) {
2457 list_add_tail(&roc->list, &tmp->dependents);
2458 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2459 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2460 queued = true;
2461 break;
2462 }
2463
2464 /* If it has already started, it's more difficult ... */
2465 if (local->ops->remain_on_channel) {
2466 unsigned long j = jiffies;
2467
2468 /*
2469 * In the offloaded ROC case, if it hasn't begun, add
2470 * this new one to the dependent list to be handled
d339d5ca 2471 * when the master one begins. If it has begun,
2eb278e0
JB		 2472 * check that there's still a minimum time left and
2473 * if so, start this one, transmitting the frame, but
d339d5ca 2474 * add it to the list directly after this one with
2eb278e0
JB		 2475 * a reduced time so we'll ask the driver to execute
2476 * it right after finishing the previous one, in the
2477 * hope that it'll also be executed right afterwards,
2478 * effectively extending the old one.
2479 * If there's no minimum time left, just add it to the
2480 * normal list.
d339d5ca
IP		 2481 * TODO: the ROC type is ignored here, assuming that it
2482 * is better to immediately use the current ROC.
2eb278e0
JB		 2483 */
2484 if (!tmp->hw_begun) {
2485 list_add_tail(&roc->list, &tmp->dependents);
2486 queued = true;
2487 break;
2488 }
2489
2490 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2491 tmp->hw_start_time +
2492 msecs_to_jiffies(tmp->duration))) {
2493 int new_dur;
2494
2495 ieee80211_handle_roc_started(roc);
2496
2497 new_dur = roc->duration -
2498 jiffies_to_msecs(tmp->hw_start_time +
2499 msecs_to_jiffies(
2500 tmp->duration) -
2501 j);
2502
2503 if (new_dur > 0) {
2504 /* add right after tmp */
2505 list_add(&roc->list, &tmp->list);
2506 } else {
2507 list_add_tail(&roc->list,
2508 &tmp->dependents);
2509 }
2510 queued = true;
2511 }
2512 } else if (del_timer_sync(&tmp->work.timer)) {
2513 unsigned long new_end;
2514
2515 /*
2516 * In the software ROC case, cancel the timer, if
2517 * that fails then the finish work is already
2518 * queued/pending and thus we queue the new ROC
2519 * normally, if that succeeds then we can extend
2520 * the timer duration and TX the frame (if any.)
2521 */
2522
2523 list_add_tail(&roc->list, &tmp->dependents);
2524 queued = true;
2525
2526 new_end = jiffies + msecs_to_jiffies(roc->duration);
2527
2528 /* ok, it was started & we canceled timer */
2529 if (time_after(new_end, tmp->work.timer.expires))
2530 mod_timer(&tmp->work.timer, new_end);
2531 else
2532 add_timer(&tmp->work.timer);
2533
2534 ieee80211_handle_roc_started(roc);
2535 }
2536 break;
2537 }
2538
2539 out_queue:
2540 if (!queued)
2541 list_add_tail(&roc->list, &local->roc_list);
2542
2eb278e0 2543 return 0;
21f83589
JB		 2544}
2545
b8bc4b0a 2546static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2547 struct wireless_dev *wdev,
b8bc4b0a 2548 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2549 unsigned int duration,
2550 u64 *cookie)
2551{
71bbc994 2552 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2553 struct ieee80211_local *local = sdata->local;
2eb278e0 2554 int ret;
21f83589 2555
2eb278e0 2556 mutex_lock(&local->mtx);
42d97a59 2557 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2558 duration, cookie, NULL,
2559 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2560 mutex_unlock(&local->mtx);
b8bc4b0a 2561
2eb278e0 2562 return ret;
b8bc4b0a
JB		 2563}
2564
2eb278e0
JB		 2565static int ieee80211_cancel_roc(struct ieee80211_local *local,
2566 u64 cookie, bool mgmt_tx)
21f83589 2567{
2eb278e0 2568 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2569 int ret;
2570
2eb278e0
JB		 2571 mutex_lock(&local->mtx);
2572 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2573 struct ieee80211_roc_work *dep, *tmp2;
2574
2575 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2576 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2577 continue;
2578 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2579 continue;
2580 /* found dependent item -- just remove it */
2581 list_del(&dep->list);
2582 mutex_unlock(&local->mtx);
2583
3fbd45ca 2584 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2585 return 0;
2586 }
2587
50febf6a 2588 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2589 continue;
2590 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2591 continue;
21f83589 2592
2eb278e0
JB		 2593 found = roc;
2594 break;
2595 }
21f83589 2596
2eb278e0
JB		 2597 if (!found) {
2598 mutex_unlock(&local->mtx);
2599 return -ENOENT;
2600 }
21f83589 2601
e979e33c
JB		 2602 /*
2603 * We found the item to cancel, so do that. Note that it
2604 * may have dependents, which we also cancel (and send
2605 * the expired signal for.) Not doing so would be quite
2606 * tricky here, but we may need to fix it later.
2607 */
2608
2eb278e0
JB		 2609 if (local->ops->remain_on_channel) {
2610 if (found->started) {
2611 ret = drv_cancel_remain_on_channel(local);
2612 if (WARN_ON_ONCE(ret)) {
2613 mutex_unlock(&local->mtx);
2614 return ret;
2615 }
2616 }
21f83589 2617
2eb278e0 2618 list_del(&found->list);
21f83589 2619
0f6b3f59
JB		 2620 if (found->started)
2621 ieee80211_start_next_roc(local);
2eb278e0 2622 mutex_unlock(&local->mtx);
21f83589 2623
3fbd45ca 2624 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2625 } else {
2626 /* work may be pending so use it all the time */
2627 found->abort = true;
2628 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2629
21f83589
JB		 2630 mutex_unlock(&local->mtx);
2631
2eb278e0
JB		 2632 /* work will clean up etc */
2633 flush_delayed_work(&found->work);
3fbd45ca
JB		 2634 WARN_ON(!found->to_be_freed);
2635 kfree(found);
21f83589 2636 }
b8bc4b0a 2637
2eb278e0 2638 return 0;
b8bc4b0a
JB		 2639}
2640
2eb278e0 2641static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2642 struct wireless_dev *wdev,
2eb278e0 2643 u64 cookie)
f30221e4 2644{
71bbc994 2645 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2646 struct ieee80211_local *local = sdata->local;
f30221e4 2647
2eb278e0 2648 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2649}
2650
164eb02d
SW		 2651static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2652 struct net_device *dev,
31559f35
JD		 2653 struct cfg80211_chan_def *chandef,
2654 u32 cac_time_ms)
164eb02d
SW		 2655{
2656 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2657 struct ieee80211_local *local = sdata->local;
164eb02d
SW		 2658 int err;
2659
34a3740d
JB		 2660 mutex_lock(&local->mtx);
2661 if (!list_empty(&local->roc_list) || local->scanning) {
2662 err = -EBUSY;
2663 goto out_unlock;
2664 }
164eb02d
SW		 2665
2666 /* whatever, but channel contexts should not complain about that one */
2667 sdata->smps_mode = IEEE80211_SMPS_OFF;
2668 sdata->needed_rx_chains = local->rx_chains;
164eb02d 2669
164eb02d
SW		 2670 err = ieee80211_vif_use_channel(sdata, chandef,
2671 IEEE80211_CHANCTX_SHARED);
164eb02d 2672 if (err)
34a3740d 2673 goto out_unlock;
164eb02d 2674
164eb02d 2675 ieee80211_queue_delayed_work(&sdata->local->hw,
31559f35
JD		 2676 &sdata->dfs_cac_timer_work,
2677 msecs_to_jiffies(cac_time_ms));
164eb02d 2678
34a3740d
JB		 2679 out_unlock:
2680 mutex_unlock(&local->mtx);
2681 return err;
164eb02d
SW		 2682}
2683
73da7d5b
SW		 2684static struct cfg80211_beacon_data *
2685cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2686{
2687 struct cfg80211_beacon_data *new_beacon;
2688 u8 *pos;
2689 int len;
2690
2691 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2692 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2693 beacon->probe_resp_len;
2694
2695 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2696 if (!new_beacon)
2697 return NULL;
2698
2699 pos = (u8 *)(new_beacon + 1);
2700 if (beacon->head_len) {
2701 new_beacon->head_len = beacon->head_len;
2702 new_beacon->head = pos;
2703 memcpy(pos, beacon->head, beacon->head_len);
2704 pos += beacon->head_len;
2705 }
2706 if (beacon->tail_len) {
2707 new_beacon->tail_len = beacon->tail_len;
2708 new_beacon->tail = pos;
2709 memcpy(pos, beacon->tail, beacon->tail_len);
2710 pos += beacon->tail_len;
2711 }
2712 if (beacon->beacon_ies_len) {
2713 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2714 new_beacon->beacon_ies = pos;
2715 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2716 pos += beacon->beacon_ies_len;
2717 }
2718 if (beacon->proberesp_ies_len) {
2719 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2720 new_beacon->proberesp_ies = pos;
2721 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2722 pos += beacon->proberesp_ies_len;
2723 }
2724 if (beacon->assocresp_ies_len) {
2725 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2726 new_beacon->assocresp_ies = pos;
2727 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2728 pos += beacon->assocresp_ies_len;
2729 }
2730 if (beacon->probe_resp_len) {
2731 new_beacon->probe_resp_len = beacon->probe_resp_len;
2732 beacon->probe_resp = pos;
2733 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2734 pos += beacon->probe_resp_len;
2735 }
2736
2737 return new_beacon;
2738}
2739
66e01cf9 2740void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2741{
66e01cf9 2742 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2743
66e01cf9
LC		 2744 ieee80211_queue_work(&sdata->local->hw,
2745 &sdata->csa_finalize_work);
2746}
2747EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 2748
66199506
MK		 2749static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2750 u32 *changed)
66e01cf9 2751{
66199506 2752 int err;
7578d575 2753
cd7760e6
SW		 2754 switch (sdata->vif.type) {
2755 case NL80211_IFTYPE_AP:
af296bdb
MK		 2756 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2757 NULL);
97518af1
MK		 2758 kfree(sdata->u.ap.next_beacon);
2759 sdata->u.ap.next_beacon = NULL;
2760
cd7760e6 2761 if (err < 0)
66199506
MK		 2762 return err;
2763 *changed |= err;
cd7760e6
SW		 2764 break;
2765 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 2766 err = ieee80211_ibss_finish_csa(sdata);
2767 if (err < 0)
66199506
MK		 2768 return err;
2769 *changed |= err;
cd7760e6 2770 break;
b8456a14
CYY		 2771#ifdef CONFIG_MAC80211_MESH
2772 case NL80211_IFTYPE_MESH_POINT:
2773 err = ieee80211_mesh_finish_csa(sdata);
2774 if (err < 0)
66199506
MK		 2775 return err;
2776 *changed |= err;
b8456a14
CYY		 2777 break;
2778#endif
cd7760e6
SW		 2779 default:
2780 WARN_ON(1);
66199506
MK		 2781 return -EINVAL;
2782 }
2783
2784 return 0;
2785}
2786
cf8767dd 2787static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
66199506
MK		 2788{
2789 struct ieee80211_local *local = sdata->local;
2790 u32 changed = 0;
2791 int err;
2792
2793 sdata_assert_lock(sdata);
2794 lockdep_assert_held(&local->mtx);
2795
2796 sdata->radar_required = sdata->csa_radar_required;
2797 err = ieee80211_vif_change_channel(sdata, &changed);
cf8767dd
MK		 2798 if (err < 0)
2799 return err;
66199506
MK		 2800
2801 if (!local->use_chanctx) {
2802 local->_oper_chandef = sdata->csa_chandef;
2803 ieee80211_hw_config(local, 0);
cd7760e6 2804 }
73da7d5b 2805
66199506
MK		 2806 sdata->vif.csa_active = false;
2807
2808 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2809 if (err)
cf8767dd 2810 return err;
faf046e7 2811
66199506 2812 ieee80211_bss_info_change_notify(sdata, changed);
59af6928
MK		 2813 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2814
a46992b4
LC		 2815 if (sdata->csa_block_tx) {
2816 ieee80211_wake_vif_queues(local, sdata,
2817 IEEE80211_QUEUE_STOP_REASON_CSA);
2818 sdata->csa_block_tx = false;
2819 }
cf8767dd
MK		 2820
2821 return 0;
2822}
2823
2824static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2825{
2826 if (__ieee80211_csa_finalize(sdata)) {
2827 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2828 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2829 GFP_KERNEL);
2830 }
66e01cf9
LC		 2831}
2832
2833void ieee80211_csa_finalize_work(struct work_struct *work)
2834{
2835 struct ieee80211_sub_if_data *sdata =
2836 container_of(work, struct ieee80211_sub_if_data,
2837 csa_finalize_work);
59af6928 2838 struct ieee80211_local *local = sdata->local;
66e01cf9
LC		 2839
2840 sdata_lock(sdata);
59af6928
MK		 2841 mutex_lock(&local->mtx);
2842
66e01cf9
LC		 2843 /* AP might have been stopped while waiting for the lock. */
2844 if (!sdata->vif.csa_active)
2845 goto unlock;
2846
2847 if (!ieee80211_sdata_running(sdata))
2848 goto unlock;
2849
2850 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 2851
2852unlock:
59af6928 2853 mutex_unlock(&local->mtx);
e487eaeb 2854 sdata_unlock(sdata);
73da7d5b
SW		 2855}
2856
37fa2bdd
MK		 2857static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2858 struct cfg80211_csa_settings *params,
2859 u32 *changed)
73da7d5b 2860{
af296bdb 2861 struct ieee80211_csa_settings csa = {};
37fa2bdd 2862 int err;
73da7d5b 2863
73da7d5b
SW		 2864 switch (sdata->vif.type) {
2865 case NL80211_IFTYPE_AP:
cd7760e6
SW		 2866 sdata->u.ap.next_beacon =
2867 cfg80211_beacon_dup(&params->beacon_after);
2868 if (!sdata->u.ap.next_beacon)
2869 return -ENOMEM;
2870
66e01cf9
LC		 2871 /*
2872 * With a count of 0, we don't have to wait for any
2873 * TBTT before switching, so complete the CSA
2874 * immediately. In theory, with a count == 1 we
2875 * should delay the switch until just before the next
2876 * TBTT, but that would complicate things so we switch
2877 * immediately too. If we would delay the switch
2878 * until the next TBTT, we would have to set the probe
2879 * response here.
2880 *
2881 * TODO: A channel switch with count <= 1 without
2882 * sending a CSA action frame is kind of useless,
2883 * because the clients won't know we're changing
2884 * channels. The action frame must be implemented
2885 * either here or in the userspace.
2886 */
2887 if (params->count <= 1)
2888 break;
2889
0d06d9ba
AO		 2890 if ((params->n_counter_offsets_beacon >
2891 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2892 (params->n_counter_offsets_presp >
2893 IEEE80211_MAX_CSA_COUNTERS_NUM))
2894 return -EINVAL;
9a774c78 2895
af296bdb
MK		 2896 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2897 csa.counter_offsets_presp = params->counter_offsets_presp;
2898 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2899 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2900 csa.count = params->count;
9a774c78 2901
af296bdb 2902 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
cd7760e6
SW		 2903 if (err < 0) {
2904 kfree(sdata->u.ap.next_beacon);
2905 return err;
2906 }
37fa2bdd 2907 *changed |= err;
66e01cf9 2908
cd7760e6
SW		 2909 break;
2910 case NL80211_IFTYPE_ADHOC:
2911 if (!sdata->vif.bss_conf.ibss_joined)
2912 return -EINVAL;
2913
2914 if (params->chandef.width != sdata->u.ibss.chandef.width)
2915 return -EINVAL;
2916
2917 switch (params->chandef.width) {
2918 case NL80211_CHAN_WIDTH_40:
2919 if (cfg80211_get_chandef_type(&params->chandef) !=
2920 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2921 return -EINVAL;
2922 case NL80211_CHAN_WIDTH_5:
2923 case NL80211_CHAN_WIDTH_10:
2924 case NL80211_CHAN_WIDTH_20_NOHT:
2925 case NL80211_CHAN_WIDTH_20:
2926 break;
2927 default:
2928 return -EINVAL;
2929 }
2930
2931 /* changes into another band are not supported */
2932 if (sdata->u.ibss.chandef.chan->band !=
2933 params->chandef.chan->band)
2934 return -EINVAL;
2935
66e01cf9
LC		 2936 /* see comments in the NL80211_IFTYPE_AP block */
2937 if (params->count > 1) {
2938 err = ieee80211_ibss_csa_beacon(sdata, params);
2939 if (err < 0)
2940 return err;
37fa2bdd 2941 *changed |= err;
66e01cf9
LC		 2942 }
2943
2944 ieee80211_send_action_csa(sdata, params);
2945
73da7d5b 2946 break;
c6da674a 2947#ifdef CONFIG_MAC80211_MESH
37fa2bdd
MK		 2948 case NL80211_IFTYPE_MESH_POINT: {
2949 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a 2950
c6da674a
CYY		 2951 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
2952 return -EINVAL;
2953
2954 /* changes into another band are not supported */
2955 if (sdata->vif.bss_conf.chandef.chan->band !=
2956 params->chandef.chan->band)
2957 return -EINVAL;
2958
c782bf8c 2959 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 2960 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 2961 if (!ifmsh->pre_value)
2962 ifmsh->pre_value = 1;
2963 else
2964 ifmsh->pre_value++;
2965 }
0cb4d4dc 2966
66e01cf9
LC		 2967 /* see comments in the NL80211_IFTYPE_AP block */
2968 if (params->count > 1) {
2969 err = ieee80211_mesh_csa_beacon(sdata, params);
2970 if (err < 0) {
2971 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
2972 return err;
2973 }
37fa2bdd 2974 *changed |= err;
3f718fd8 2975 }
66e01cf9
LC		 2976
2977 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
2978 ieee80211_send_action_csa(sdata, params);
2979
c6da674a 2980 break;
37fa2bdd 2981 }
c6da674a 2982#endif
73da7d5b
SW		 2983 default:
2984 return -EOPNOTSUPP;
2985 }
2986
37fa2bdd
MK		 2987 return 0;
2988}
2989
f29f58a9
LC		 2990static int
2991__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2992 struct cfg80211_csa_settings *params)
37fa2bdd
MK		 2993{
2994 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2995 struct ieee80211_local *local = sdata->local;
2b32713d 2996 struct ieee80211_chanctx_conf *conf;
37fa2bdd
MK		 2997 struct ieee80211_chanctx *chanctx;
2998 int err, num_chanctx, changed = 0;
2999
3000 sdata_assert_lock(sdata);
59af6928 3001 lockdep_assert_held(&local->mtx);
37fa2bdd
MK		 3002
3003 if (!list_empty(&local->roc_list) || local->scanning)
3004 return -EBUSY;
3005
3006 if (sdata->wdev.cac_started)
3007 return -EBUSY;
3008
3009 if (cfg80211_chandef_identical(&params->chandef,
3010 &sdata->vif.bss_conf.chandef))
3011 return -EINVAL;
3012
2b32713d
MK		 3013 mutex_lock(&local->chanctx_mtx);
3014 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3015 lockdep_is_held(&local->chanctx_mtx));
3016 if (!conf) {
3017 mutex_unlock(&local->chanctx_mtx);
37fa2bdd
MK		 3018 return -EBUSY;
3019 }
3020
3021 /* don't handle for multi-VIF cases */
2b32713d 3022 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
c0166da9 3023 if (ieee80211_chanctx_refcount(local, chanctx) > 1) {
2b32713d 3024 mutex_unlock(&local->chanctx_mtx);
37fa2bdd
MK		 3025 return -EBUSY;
3026 }
3027 num_chanctx = 0;
3028 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3029 num_chanctx++;
2b32713d 3030 mutex_unlock(&local->chanctx_mtx);
37fa2bdd
MK		 3031
3032 if (num_chanctx > 1)
3033 return -EBUSY;
3034
3035 /* don't allow another channel switch if one is already active. */
3036 if (sdata->vif.csa_active)
3037 return -EBUSY;
3038
3039 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3040 if (err)
3041 return err;
3042
73da7d5b 3043 sdata->csa_radar_required = params->radar_required;
33787fc4 3044 sdata->csa_chandef = params->chandef;
59af6928 3045 sdata->csa_block_tx = params->block_tx;
73da7d5b
SW		 3046 sdata->vif.csa_active = true;
3047
59af6928 3048 if (sdata->csa_block_tx)
a46992b4
LC		 3049 ieee80211_stop_vif_queues(local, sdata,
3050 IEEE80211_QUEUE_STOP_REASON_CSA);
59af6928 3051
66e01cf9
LC		 3052 if (changed) {
3053 ieee80211_bss_info_change_notify(sdata, changed);
3054 drv_channel_switch_beacon(sdata, &params->chandef);
3055 } else {
3056 /* if the beacon didn't change, we can finalize immediately */
3057 ieee80211_csa_finalize(sdata);
3058 }
73da7d5b
SW		 3059
3060 return 0;
3061}
3062
59af6928
MK		 3063int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3064 struct cfg80211_csa_settings *params)
3065{
3066 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3067 struct ieee80211_local *local = sdata->local;
3068 int err;
3069
3070 mutex_lock(&local->mtx);
3071 err = __ieee80211_channel_switch(wiphy, dev, params);
3072 mutex_unlock(&local->mtx);
3073
3074 return err;
3075}
3076
71bbc994 3077static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3078 struct cfg80211_mgmt_tx_params *params,
3079 u64 *cookie)
026331c4 3080{
71bbc994 3081 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d
JB		 3082 struct ieee80211_local *local = sdata->local;
3083 struct sk_buff *skb;
3084 struct sta_info *sta;
b176e629 3085 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3086 bool need_offchan = false;
e247bd90 3087 u32 flags;
2eb278e0 3088 int ret;
387910cc 3089 u8 *data;
f7ca38df 3090
b176e629 3091 if (params->dont_wait_for_ack)
e247bd90
JB		 3092 flags = IEEE80211_TX_CTL_NO_ACK;
3093 else
3094 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3095 IEEE80211_TX_CTL_REQ_TX_STATUS;
3096
b176e629 3097 if (params->no_cck)
aad14ceb
RM		 3098 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3099
9d38d85d
JB		 3100 switch (sdata->vif.type) {
3101 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3102 if (!sdata->vif.bss_conf.ibss_joined)
3103 need_offchan = true;
3104 /* fall through */
3105#ifdef CONFIG_MAC80211_MESH
3106 case NL80211_IFTYPE_MESH_POINT:
3107 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3108 !sdata->u.mesh.mesh_id_len)
3109 need_offchan = true;
3110 /* fall through */
3111#endif
663fcafd
JB		 3112 case NL80211_IFTYPE_AP:
3113 case NL80211_IFTYPE_AP_VLAN:
3114 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3115 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3116 !ieee80211_vif_is_mesh(&sdata->vif) &&
3117 !rcu_access_pointer(sdata->bss->beacon))
3118 need_offchan = true;
663fcafd 3119 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3120 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3121 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3122 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3123 break;
3124 rcu_read_lock();
3125 sta = sta_info_get(sdata, mgmt->da);
3126 rcu_read_unlock();
3127 if (!sta)
3128 return -ENOLINK;
3129 break;
3130 case NL80211_IFTYPE_STATION:
663fcafd 3131 case NL80211_IFTYPE_P2P_CLIENT:
2eb278e0
JB		 3132 if (!sdata->u.mgd.associated)
3133 need_offchan = true;
9d38d85d 3134 break;
f142c6b9
JB		 3135 case NL80211_IFTYPE_P2P_DEVICE:
3136 need_offchan = true;
3137 break;
9d38d85d
JB		 3138 default:
3139 return -EOPNOTSUPP;
3140 }
3141
f7aeb6fb
AQ		 3142 /* configurations requiring offchan cannot work if no channel has been
3143 * specified
3144 */
b176e629 3145 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3146 return -EINVAL;
3147
2eb278e0
JB		 3148 mutex_lock(&local->mtx);
3149
3150 /* Check if the operating channel is the requested channel */
3151 if (!need_offchan) {
55de908a
JB		 3152 struct ieee80211_chanctx_conf *chanctx_conf;
3153
3154 rcu_read_lock();
3155 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3156
f7aeb6fb 3157 if (chanctx_conf) {
b176e629
AO		 3158 need_offchan = params->chan &&
3159 (params->chan !=
3160 chanctx_conf->def.chan);
3161 } else if (!params->chan) {
f7aeb6fb
AQ		 3162 ret = -EINVAL;
3163 rcu_read_unlock();
3164 goto out_unlock;
3165 } else {
2eb278e0 3166 need_offchan = true;
f7aeb6fb 3167 }
55de908a 3168 rcu_read_unlock();
2eb278e0
JB		 3169 }
3170
b176e629 3171 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3172 ret = -EBUSY;
3173 goto out_unlock;
3174 }
3175
b176e629 3176 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3177 if (!skb) {
3178 ret = -ENOMEM;
3179 goto out_unlock;
3180 }
9d38d85d
JB		 3181 skb_reserve(skb, local->hw.extra_tx_headroom);
3182
387910cc
AO		 3183 data = skb_put(skb, params->len);
3184 memcpy(data, params->buf, params->len);
3185
3186 /* Update CSA counters */
3187 if (sdata->vif.csa_active &&
3188 (sdata->vif.type == NL80211_IFTYPE_AP ||
3189 sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3190 params->n_csa_offsets) {
3191 int i;
af296bdb 3192 struct beacon_data *beacon = NULL;
387910cc 3193
af296bdb
MK		 3194 rcu_read_lock();
3195
3196 if (sdata->vif.type == NL80211_IFTYPE_AP)
3197 beacon = rcu_dereference(sdata->u.ap.beacon);
3198 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3199 beacon = rcu_dereference(sdata->u.ibss.presp);
3200 else if (ieee80211_vif_is_mesh(&sdata->vif))
3201 beacon = rcu_dereference(sdata->u.mesh.beacon);
3202
3203 if (beacon)
3204 for (i = 0; i < params->n_csa_offsets; i++)
3205 data[params->csa_offsets[i]] =
3206 beacon->csa_current_counter;
3207
3208 rcu_read_unlock();
387910cc 3209 }
9d38d85d
JB		 3210
3211 IEEE80211_SKB_CB(skb)->flags = flags;
3212
3213 skb->dev = sdata->dev;
9d38d85d 3214
2eb278e0 3215 if (!need_offchan) {
7f9f78ab 3216 *cookie = (unsigned long) skb;
f30221e4 3217 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3218 ret = 0;
3219 goto out_unlock;
f30221e4
JB		 3220 }
3221
6c17b77b
SF		 3222 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3223 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2eb278e0
JB		 3224 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3225 IEEE80211_SKB_CB(skb)->hw_queue =
3226 local->hw.offchannel_tx_hw_queue;
f30221e4 3227
2eb278e0 3228 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3229 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3230 params->wait, cookie, skb,
d339d5ca 3231 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3232 if (ret)
3233 kfree_skb(skb);
3234 out_unlock:
3235 mutex_unlock(&local->mtx);
3236 return ret;
026331c4
JM		 3237}
3238
f30221e4 3239static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3240 struct wireless_dev *wdev,
f30221e4
JB		 3241 u64 cookie)
3242{
71bbc994 3243 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3244
2eb278e0 3245 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3246}
3247
7be5086d 3248static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3249 struct wireless_dev *wdev,
7be5086d
JB		 3250 u16 frame_type, bool reg)
3251{
3252 struct ieee80211_local *local = wiphy_priv(wiphy);
3253
6abe0563 3254 switch (frame_type) {
6abe0563
WH		 3255 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3256 if (reg)
3257 local->probe_req_reg++;
3258 else
3259 local->probe_req_reg--;
7be5086d 3260
35f5149e
FF		 3261 if (!local->open_count)
3262 break;
3263
6abe0563
WH		 3264 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3265 break;
3266 default:
3267 break;
3268 }
7be5086d
JB		 3269}
3270
15d96753
BR		 3271static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3272{
3273 struct ieee80211_local *local = wiphy_priv(wiphy);
3274
3275 if (local->started)
3276 return -EOPNOTSUPP;
3277
3278 return drv_set_antenna(local, tx_ant, rx_ant);
3279}
3280
3281static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3282{
3283 struct ieee80211_local *local = wiphy_priv(wiphy);
3284
3285 return drv_get_antenna(local, tx_ant, rx_ant);
3286}
3287
c68f4b89
JB		 3288static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3289 struct net_device *dev,
3290 struct cfg80211_gtk_rekey_data *data)
3291{
3292 struct ieee80211_local *local = wiphy_priv(wiphy);
3293 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3294
3295 if (!local->ops->set_rekey_data)
3296 return -EOPNOTSUPP;
3297
3298 drv_set_rekey_data(local, sdata, data);
3299
3300 return 0;
3301}
3302
06500736
JB		 3303static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3304 const u8 *peer, u64 *cookie)
3305{
3306 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3307 struct ieee80211_local *local = sdata->local;
3308 struct ieee80211_qos_hdr *nullfunc;
3309 struct sk_buff *skb;
3310 int size = sizeof(*nullfunc);
3311 __le16 fc;
3312 bool qos;
3313 struct ieee80211_tx_info *info;
3314 struct sta_info *sta;
55de908a
JB		 3315 struct ieee80211_chanctx_conf *chanctx_conf;
3316 enum ieee80211_band band;
06500736
JB		 3317
3318 rcu_read_lock();
55de908a
JB		 3319 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3320 if (WARN_ON(!chanctx_conf)) {
3321 rcu_read_unlock();
3322 return -EINVAL;
3323 }
4bf88530 3324 band = chanctx_conf->def.chan->band;
03bb7f42 3325 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3326 if (sta) {
06500736 3327 qos = test_sta_flag(sta, WLAN_STA_WME);
b4487c2d
JB		 3328 } else {
3329 rcu_read_unlock();
06500736 3330 return -ENOLINK;
b4487c2d 3331 }
06500736
JB		 3332
3333 if (qos) {
3334 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3335 IEEE80211_STYPE_QOS_NULLFUNC |
3336 IEEE80211_FCTL_FROMDS);
3337 } else {
3338 size -= 2;
3339 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3340 IEEE80211_STYPE_NULLFUNC |
3341 IEEE80211_FCTL_FROMDS);
3342 }
3343
3344 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a
JB		 3345 if (!skb) {
3346 rcu_read_unlock();
06500736 3347 return -ENOMEM;
55de908a 3348 }
06500736
JB		 3349
3350 skb->dev = dev;
3351
3352 skb_reserve(skb, local->hw.extra_tx_headroom);
3353
3354 nullfunc = (void *) skb_put(skb, size);
3355 nullfunc->frame_control = fc;
3356 nullfunc->duration_id = 0;
3357 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3358 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3359 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3360 nullfunc->seq_ctrl = 0;
3361
3362 info = IEEE80211_SKB_CB(skb);
3363
3364 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3365 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3366
3367 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3368 skb->priority = 7;
3369 if (qos)
3370 nullfunc->qos_ctrl = cpu_to_le16(7);
3371
3372 local_bh_disable();
55de908a 3373 ieee80211_xmit(sdata, skb, band);
06500736 3374 local_bh_enable();
55de908a 3375 rcu_read_unlock();
06500736
JB		 3376
3377 *cookie = (unsigned long) skb;
3378 return 0;
3379}
3380
683b6d3b
JB		 3381static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3382 struct wireless_dev *wdev,
3383 struct cfg80211_chan_def *chandef)
5b7ccaf3 3384{
55de908a 3385 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3386 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3387 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3388 int ret = -ENODATA;
55de908a
JB		 3389
3390 rcu_read_lock();
feda3027
JB		 3391 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3392 if (chanctx_conf) {
3393 *chandef = chanctx_conf->def;
3394 ret = 0;
3395 } else if (local->open_count > 0 &&
3396 local->open_count == local->monitors &&
3397 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3398 if (local->use_chanctx)
3399 *chandef = local->monitor_chandef;
3400 else
675a0b04 3401 *chandef = local->_oper_chandef;
683b6d3b 3402 ret = 0;
55de908a
JB		 3403 }
3404 rcu_read_unlock();
5b7ccaf3 3405
683b6d3b 3406 return ret;
5b7ccaf3
JB		 3407}
3408
6d52563f
JB		 3409#ifdef CONFIG_PM
3410static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3411{
3412 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3413}
3414#endif
3415
32db6b54
KP		 3416static int ieee80211_set_qos_map(struct wiphy *wiphy,
3417 struct net_device *dev,
3418 struct cfg80211_qos_map *qos_map)
3419{
3420 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3421 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3422
3423 if (qos_map) {
3424 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3425 if (!new_qos_map)
3426 return -ENOMEM;
3427 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3428 } else {
3429 /* A NULL qos_map was passed to disable QoS mapping */
3430 new_qos_map = NULL;
3431 }
3432
194ff52d 3433 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3434 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3435 if (old_qos_map)
3436 kfree_rcu(old_qos_map, rcu_head);
3437
3438 return 0;
3439}
3440
3b1700bd
JM		 3441static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3442 struct net_device *dev,
3443 struct cfg80211_chan_def *chandef)
3444{
3445 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3446 int ret;
3447 u32 changed = 0;
3448
3449 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3450 if (ret == 0)
3451 ieee80211_bss_info_change_notify(sdata, changed);
3452
3453 return ret;
3454}
3455
8a47cea7 3456const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3457 .add_virtual_intf = ieee80211_add_iface,
3458 .del_virtual_intf = ieee80211_del_iface,
42613db7 3459 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3460 .start_p2p_device = ieee80211_start_p2p_device,
3461 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3462 .add_key = ieee80211_add_key,
3463 .del_key = ieee80211_del_key,
62da92fb 3464 .get_key = ieee80211_get_key,
e8cbb4cb 3465 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3466 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3467 .start_ap = ieee80211_start_ap,
3468 .change_beacon = ieee80211_change_beacon,
3469 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3470 .add_station = ieee80211_add_station,
3471 .del_station = ieee80211_del_station,
3472 .change_station = ieee80211_change_station,
7bbdd2d9 3473 .get_station = ieee80211_get_station,
c5dd9c2b 3474 .dump_station = ieee80211_dump_station,
1289723e 3475 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3476#ifdef CONFIG_MAC80211_MESH
3477 .add_mpath = ieee80211_add_mpath,
3478 .del_mpath = ieee80211_del_mpath,
3479 .change_mpath = ieee80211_change_mpath,
3480 .get_mpath = ieee80211_get_mpath,
3481 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 3482 .update_mesh_config = ieee80211_update_mesh_config,
3483 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3484 .join_mesh = ieee80211_join_mesh,
3485 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3486#endif
9f1ba906 3487 .change_bss = ieee80211_change_bss,
31888487 3488 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3489 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3490 .suspend = ieee80211_suspend,
3491 .resume = ieee80211_resume,
2a519311 3492 .scan = ieee80211_scan,
79f460ca
LC		 3493 .sched_scan_start = ieee80211_sched_scan_start,
3494 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3495 .auth = ieee80211_auth,
3496 .assoc = ieee80211_assoc,
3497 .deauth = ieee80211_deauth,
3498 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3499 .join_ibss = ieee80211_join_ibss,
3500 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3501 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3502 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3503 .set_tx_power = ieee80211_set_tx_power,
3504 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3505 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3506 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3507 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3508 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3509 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3510 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3511 .remain_on_channel = ieee80211_remain_on_channel,
3512 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3513 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3514 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3515 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3516 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3517 .set_antenna = ieee80211_set_antenna,
3518 .get_antenna = ieee80211_get_antenna,
c68f4b89 3519 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3520 .tdls_oper = ieee80211_tdls_oper,
3521 .tdls_mgmt = ieee80211_tdls_mgmt,
06500736 3522 .probe_client = ieee80211_probe_client,
b53be792 3523 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3524#ifdef CONFIG_PM
3525 .set_wakeup = ieee80211_set_wakeup,
3526#endif
5b7ccaf3 3527 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3528 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3529 .channel_switch = ieee80211_channel_switch,
32db6b54 3530 .set_qos_map = ieee80211_set_qos_map,
3b1700bd 3531 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
f0706e82 3532};
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