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mac80211: add functions to stop and wake all queues assigned to a vif
[mirror_ubuntu-artful-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
59af6928
MK		 793bool ieee80211_csa_needs_block_tx(struct ieee80211_local *local)
794{
795 struct ieee80211_sub_if_data *sdata;
796
797 lockdep_assert_held(&local->mtx);
798
799 rcu_read_lock();
800 list_for_each_entry_rcu(sdata, &local->interfaces, list) {
801 if (!ieee80211_sdata_running(sdata))
802 continue;
803
804 if (!sdata->vif.csa_active)
805 continue;
806
807 if (!sdata->csa_block_tx)
808 continue;
809
810 rcu_read_unlock();
811 return true;
812 }
813 rcu_read_unlock();
814
815 return false;
816}
817
8860020e 818static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 819{
7b20b8e8
JB		 820 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
821 struct ieee80211_sub_if_data *vlan;
822 struct ieee80211_local *local = sdata->local;
823 struct beacon_data *old_beacon;
824 struct probe_resp *old_probe_resp;
d2859df5 825 struct cfg80211_chan_def chandef;
14db74bc 826
dbd72850
MK		 827 sdata_assert_lock(sdata);
828
7ca133bc 829 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 830 if (!old_beacon)
5dfdaf58 831 return -ENOENT;
7ca133bc 832 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 833
73da7d5b 834 /* abort any running channel switch */
59af6928 835 mutex_lock(&local->mtx);
73da7d5b 836 sdata->vif.csa_active = false;
59af6928
MK		 837 if (!ieee80211_csa_needs_block_tx(local))
838 ieee80211_wake_queues_by_reason(&local->hw,
839 IEEE80211_MAX_QUEUE_MAP,
cca07b00
LC		 840 IEEE80211_QUEUE_STOP_REASON_CSA,
841 false);
59af6928
MK		 842 mutex_unlock(&local->mtx);
843
1f3b8a2b
SW		 844 kfree(sdata->u.ap.next_beacon);
845 sdata->u.ap.next_beacon = NULL;
846
7b20b8e8 847 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 848 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
849 netif_carrier_off(vlan->dev);
850 netif_carrier_off(dev);
851
7b20b8e8 852 /* remove beacon and probe response */
a9b3cd7f 853 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 854 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
855 kfree_rcu(old_beacon, rcu_head);
856 if (old_probe_resp)
857 kfree_rcu(old_probe_resp, rcu_head);
8ffcc704 858 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
8860020e 859
e716251d 860 __sta_info_flush(sdata, true);
7907c7d3 861 ieee80211_free_keys(sdata, true);
75de9113 862
d6a83228 863 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 864 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 865 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 866 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 867
a6b368f6 868 if (sdata->wdev.cac_started) {
d2859df5 869 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 870 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 871 cfg80211_cac_event(sdata->dev, &chandef,
872 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 873 GFP_KERNEL);
874 }
875
1041638f
JB		 876 drv_stop_ap(sdata->local, sdata);
877
7b20b8e8
JB		 878 /* free all potentially still buffered bcast frames */
879 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
880 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
881
34a3740d 882 mutex_lock(&local->mtx);
4e141dad 883 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a 884 ieee80211_vif_release_channel(sdata);
34a3740d 885 mutex_unlock(&local->mtx);
55de908a 886
2d0ddec5 887 return 0;
5dfdaf58
JB		 888}
889
4fd6931e
JB		 890/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
891struct iapp_layer2_update {
892 u8 da[ETH_ALEN]; /* broadcast */
893 u8 sa[ETH_ALEN]; /* STA addr */
894 __be16 len; /* 6 */
895 u8 dsap; /* 0 */
896 u8 ssap; /* 0 */
897 u8 control;
898 u8 xid_info[3];
bc10502d 899} __packed;
4fd6931e
JB		 900
901static void ieee80211_send_layer2_update(struct sta_info *sta)
902{
903 struct iapp_layer2_update *msg;
904 struct sk_buff *skb;
905
906 /* Send Level 2 Update Frame to update forwarding tables in layer 2
907 * bridge devices */
908
909 skb = dev_alloc_skb(sizeof(*msg));
910 if (!skb)
911 return;
912 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
913
914 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
915 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
916
e83e6541 917 eth_broadcast_addr(msg->da);
17741cdc 918 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 919 msg->len = htons(6);
920 msg->dsap = 0;
921 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
922 msg->control = 0xaf; /* XID response lsb.1111F101.
923 * F=0 (no poll command; unsolicited frame) */
924 msg->xid_info[0] = 0x81; /* XID format identifier */
925 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
926 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
927
d0709a65
JB		 928 skb->dev = sta->sdata->dev;
929 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 930 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 931 netif_rx_ni(skb);
4fd6931e
JB		 932}
933
d582cffb
JB		 934static int sta_apply_auth_flags(struct ieee80211_local *local,
935 struct sta_info *sta,
936 u32 mask, u32 set)
937{
938 int ret;
939
940 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
941 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
942 !test_sta_flag(sta, WLAN_STA_AUTH)) {
943 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
944 if (ret)
945 return ret;
946 }
947
948 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
949 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
950 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
951 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
952 if (ret)
953 return ret;
954 }
955
956 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
957 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
958 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
959 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
960 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
961 else
962 ret = 0;
963 if (ret)
964 return ret;
965 }
966
967 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
968 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
969 test_sta_flag(sta, WLAN_STA_ASSOC)) {
970 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
971 if (ret)
972 return ret;
973 }
974
975 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
976 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
977 test_sta_flag(sta, WLAN_STA_AUTH)) {
978 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
979 if (ret)
980 return ret;
981 }
982
983 return 0;
984}
985
d9a7ddb0
JB		 986static int sta_apply_parameters(struct ieee80211_local *local,
987 struct sta_info *sta,
988 struct station_parameters *params)
4fd6931e 989{
d9a7ddb0 990 int ret = 0;
8318d78a 991 struct ieee80211_supported_band *sband;
d0709a65 992 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 993 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 994 u32 mask, set;
4fd6931e 995
55de908a 996 sband = local->hw.wiphy->bands[band];
ae5eb026 997
eccb8e8f
JB		 998 mask = params->sta_flags_mask;
999 set = params->sta_flags_set;
73651ee6 1000
d582cffb
JB		 1001 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1002 /*
1003 * In mesh mode, ASSOCIATED isn't part of the nl80211
1004 * API but must follow AUTHENTICATED for driver state.
1005 */
1006 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1007 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1008 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1009 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1010 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1011 /*
1012 * TDLS -- everything follows authorized, but
1013 * only becoming authorized is possible, not
1014 * going back
1015 */
1016 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1017 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1018 BIT(NL80211_STA_FLAG_ASSOCIATED);
1019 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1020 BIT(NL80211_STA_FLAG_ASSOCIATED);
1021 }
eccb8e8f 1022 }
4fd6931e 1023
d582cffb
JB		 1024 ret = sta_apply_auth_flags(local, sta, mask, set);
1025 if (ret)
1026 return ret;
d9a7ddb0 1027
eccb8e8f 1028 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1029 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1030 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1031 else
1032 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1033 }
4fd6931e 1034
eccb8e8f 1035 if (mask & BIT(NL80211_STA_FLAG_WME)) {
39df600a 1036 if (set & BIT(NL80211_STA_FLAG_WME)) {
c2c98fde 1037 set_sta_flag(sta, WLAN_STA_WME);
39df600a 1038 sta->sta.wme = true;
c2c98fde
JB		 1039 } else {
1040 clear_sta_flag(sta, WLAN_STA_WME);
1041 sta->sta.wme = false;
39df600a 1042 }
eccb8e8f 1043 }
5394af4d 1044
eccb8e8f 1045 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1046 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1047 set_sta_flag(sta, WLAN_STA_MFP);
1048 else
1049 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1050 }
b39c48fa 1051
07ba55d7 1052 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1053 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1054 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1055 else
1056 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1057 }
4fd6931e 1058
3b9ce80c
JB		 1059 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1060 sta->sta.uapsd_queues = params->uapsd_queues;
1061 sta->sta.max_sp = params->max_sp;
1062 }
9533b4ac 1063
51b50fbe
JB		 1064 /*
1065 * cfg80211 validates this (1-2007) and allows setting the AID
1066 * only when creating a new station entry
1067 */
1068 if (params->aid)
1069 sta->sta.aid = params->aid;
1070
73651ee6 1071 /*
ba23d206
JB		 1072 * Some of the following updates would be racy if called on an
1073 * existing station, via ieee80211_change_station(). However,
1074 * all such changes are rejected by cfg80211 except for updates
1075 * changing the supported rates on an existing but not yet used
1076 * TDLS peer.
73651ee6
JB		 1077 */
1078
4fd6931e
JB		 1079 if (params->listen_interval >= 0)
1080 sta->listen_interval = params->listen_interval;
1081
1082 if (params->supported_rates) {
2103dec1
SW		 1083 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1084 sband, params->supported_rates,
1085 params->supported_rates_len,
1086 &sta->sta.supp_rates[band]);
4fd6931e 1087 }
c5dd9c2b 1088
d9fe60de 1089 if (params->ht_capa)
ef96a842 1090 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1091 params->ht_capa, sta);
36aedc90 1092
f461be3e
MP		 1093 if (params->vht_capa)
1094 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1095 params->vht_capa, sta);
f461be3e 1096
b1bce14a 1097 if (params->opmode_notif_used) {
b1bce14a
MK		 1098 /* returned value is only needed for rc update, but the
1099 * rc isn't initialized here yet, so ignore it
1100 */
1101 __ieee80211_vht_handle_opmode(sdata, sta,
1102 params->opmode_notif,
1103 band, false);
1104 }
1105
9c3990aa 1106 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1107#ifdef CONFIG_MAC80211_MESH
39886b61 1108 u32 changed = 0;
77ee7c89
JB		 1109
1110 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1111 switch (params->plink_state) {
57cf8043 1112 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1113 if (sta->plink_state != NL80211_PLINK_ESTAB)
1114 changed = mesh_plink_inc_estab_count(
1115 sdata);
1116 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1117
1118 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1119 changed |= ieee80211_mps_set_sta_local_pm(sta,
1120 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1121 break;
1122 case NL80211_PLINK_LISTEN:
57cf8043 1123 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1124 case NL80211_PLINK_OPN_SNT:
1125 case NL80211_PLINK_OPN_RCVD:
1126 case NL80211_PLINK_CNF_RCVD:
1127 case NL80211_PLINK_HOLDING:
1128 if (sta->plink_state == NL80211_PLINK_ESTAB)
1129 changed = mesh_plink_dec_estab_count(
1130 sdata);
9c3990aa 1131 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1132
1133 ieee80211_mps_sta_status_update(sta);
446075d7
MP		 1134 changed |= ieee80211_mps_set_sta_local_pm(sta,
1135 NL80211_MESH_POWER_UNKNOWN);
9c3990aa
JC		 1136 break;
1137 default:
1138 /* nothing */
1139 break;
1140 }
77ee7c89
JB		 1141 }
1142
1143 switch (params->plink_action) {
1144 case NL80211_PLINK_ACTION_NO_ACTION:
1145 /* nothing */
1146 break;
1147 case NL80211_PLINK_ACTION_OPEN:
1148 changed |= mesh_plink_open(sta);
1149 break;
1150 case NL80211_PLINK_ACTION_BLOCK:
1151 changed |= mesh_plink_block(sta);
1152 break;
1617bab8 1153 }
3f52b7e3
MP		 1154
1155 if (params->local_pm)
39886b61
TP		 1156 changed |=
1157 ieee80211_mps_set_sta_local_pm(sta,
1158 params->local_pm);
6c751ef8 1159 ieee80211_mbss_info_change_notify(sdata, changed);
4daf50f2 1160#endif
902acc78 1161 }
d9a7ddb0
JB		 1162
1163 return 0;
4fd6931e
JB		 1164}
1165
1166static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1167 const u8 *mac,
1168 struct station_parameters *params)
4fd6931e 1169{
14db74bc 1170 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1171 struct sta_info *sta;
1172 struct ieee80211_sub_if_data *sdata;
73651ee6 1173 int err;
b8d476c8 1174 int layer2_update;
4fd6931e 1175
4fd6931e
JB		 1176 if (params->vlan) {
1177 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1178
05c914fe
JB		 1179 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1180 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1181 return -EINVAL;
1182 } else
1183 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1184
b203ca39 1185 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1186 return -EINVAL;
1187
1188 if (is_multicast_ether_addr(mac))
1189 return -EINVAL;
1190
1191 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1192 if (!sta)
1193 return -ENOMEM;
4fd6931e 1194
d582cffb
JB		 1195 /*
1196 * defaults -- if userspace wants something else we'll
1197 * change it accordingly in sta_apply_parameters()
1198 */
77ee7c89
JB		 1199 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1200 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1201 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
0c4972cc
AN		 1202 } else {
1203 sta->sta.tdls = true;
77ee7c89 1204 }
4fd6931e 1205
d9a7ddb0
JB		 1206 err = sta_apply_parameters(local, sta, params);
1207 if (err) {
1208 sta_info_free(local, sta);
1209 return err;
1210 }
4fd6931e 1211
d64cf63e 1212 /*
77ee7c89
JB		 1213 * for TDLS, rate control should be initialized only when
1214 * rates are known and station is marked authorized
d64cf63e
AN		 1215 */
1216 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1217 rate_control_rate_init(sta);
4fd6931e 1218
b8d476c8
JM		 1219 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1220 sdata->vif.type == NL80211_IFTYPE_AP;
1221
34e89507 1222 err = sta_info_insert_rcu(sta);
73651ee6 1223 if (err) {
73651ee6
JB		 1224 rcu_read_unlock();
1225 return err;
1226 }
1227
b8d476c8 1228 if (layer2_update)
73651ee6
JB		 1229 ieee80211_send_layer2_update(sta);
1230
1231 rcu_read_unlock();
1232
4fd6931e
JB		 1233 return 0;
1234}
1235
1236static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1237 const u8 *mac)
4fd6931e 1238{
14db74bc 1239 struct ieee80211_sub_if_data *sdata;
4fd6931e 1240
14db74bc
JB		 1241 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1242
34e89507
JB		 1243 if (mac)
1244 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 1245
b998e8bb 1246 sta_info_flush(sdata);
4fd6931e
JB		 1247 return 0;
1248}
1249
1250static int ieee80211_change_station(struct wiphy *wiphy,
3b3a0162 1251 struct net_device *dev, const u8 *mac,
4fd6931e
JB		 1252 struct station_parameters *params)
1253{
abe60632 1254 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1255 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1256 struct sta_info *sta;
1257 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1258 enum cfg80211_station_type statype;
35b88623 1259 int err;
4fd6931e 1260
87be1e1e 1261 mutex_lock(&local->sta_mtx);
98dd6a57 1262
0e5ded5a 1263 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1264 if (!sta) {
77ee7c89
JB		 1265 err = -ENOENT;
1266 goto out_err;
98dd6a57 1267 }
4fd6931e 1268
77ee7c89
JB		 1269 switch (sdata->vif.type) {
1270 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1271 if (sdata->u.mesh.user_mpm)
eef941e6 1272 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1273 else
eef941e6 1274 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1275 break;
1276 case NL80211_IFTYPE_ADHOC:
1277 statype = CFG80211_STA_IBSS;
1278 break;
1279 case NL80211_IFTYPE_STATION:
1280 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1281 statype = CFG80211_STA_AP_STA;
1282 break;
1283 }
1284 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1285 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1286 else
1287 statype = CFG80211_STA_TDLS_PEER_SETUP;
1288 break;
1289 case NL80211_IFTYPE_AP:
1290 case NL80211_IFTYPE_AP_VLAN:
1291 statype = CFG80211_STA_AP_CLIENT;
1292 break;
1293 default:
1294 err = -EOPNOTSUPP;
1295 goto out_err;
bdd90d5e
JB		 1296 }
1297
77ee7c89
JB		 1298 err = cfg80211_check_station_change(wiphy, params, statype);
1299 if (err)
1300 goto out_err;
1301
d0709a65 1302 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1303 bool prev_4addr = false;
1304 bool new_4addr = false;
1305
4fd6931e
JB		 1306 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1307
9bc383de 1308 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1309 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1310 err = -EBUSY;
1311 goto out_err;
3305443c 1312 }
f14543ee 1313
cf778b00 1314 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1315 new_4addr = true;
1316 }
1317
1318 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1319 sta->sdata->u.vlan.sta) {
0c2bef46 1320 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
7e3ed02c 1321 prev_4addr = true;
f14543ee
FF		 1322 }
1323
14db74bc 1324 sta->sdata = vlansdata;
7e3ed02c
FF		 1325
1326 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1327 prev_4addr != new_4addr) {
1328 if (new_4addr)
1329 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1330 else
1331 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1332 }
1333
4fd6931e
JB		 1334 ieee80211_send_layer2_update(sta);
1335 }
1336
35b88623 1337 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1338 if (err)
1339 goto out_err;
4fd6931e 1340
77ee7c89
JB		 1341 /* When peer becomes authorized, init rate control as well */
1342 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1343 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
d64cf63e
AN		 1344 rate_control_rate_init(sta);
1345
87be1e1e 1346 mutex_unlock(&local->sta_mtx);
98dd6a57 1347
687da132
EG		 1348 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1349 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1350 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1351 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1352 sta_info_tx_streams(sta) != 1) {
1353 ht_dbg(sta->sdata,
1354 "%pM just authorized and MIMO capable - update SMPS\n",
1355 sta->sta.addr);
1356 ieee80211_send_smps_action(sta->sdata,
1357 sta->sdata->bss->req_smps,
1358 sta->sta.addr,
1359 sta->sdata->vif.bss_conf.bssid);
1360 }
1361
808118cb 1362 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1363 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1364 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1365 ieee80211_recalc_ps_vif(sdata);
1366 }
77ee7c89 1367
4fd6931e 1368 return 0;
77ee7c89
JB		 1369out_err:
1370 mutex_unlock(&local->sta_mtx);
1371 return err;
4fd6931e
JB		 1372}
1373
c5dd9c2b
LCC		 1374#ifdef CONFIG_MAC80211_MESH
1375static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1376 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1377{
14db74bc 1378 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1379 struct mesh_path *mpath;
1380 struct sta_info *sta;
c5dd9c2b 1381
14db74bc
JB		 1382 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1383
d0709a65 1384 rcu_read_lock();
abe60632 1385 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1386 if (!sta) {
1387 rcu_read_unlock();
c5dd9c2b 1388 return -ENOENT;
d0709a65 1389 }
c5dd9c2b 1390
ae76eef0
BC		 1391 mpath = mesh_path_add(sdata, dst);
1392 if (IS_ERR(mpath)) {
d0709a65 1393 rcu_read_unlock();
ae76eef0 1394 return PTR_ERR(mpath);
d0709a65 1395 }
c5dd9c2b 1396
c5dd9c2b 1397 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1398
c5dd9c2b
LCC		 1399 rcu_read_unlock();
1400 return 0;
1401}
1402
1403static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1404 const u8 *dst)
c5dd9c2b 1405{
f698d856
JBG		 1406 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1407
c5dd9c2b 1408 if (dst)
bf7cd94d 1409 return mesh_path_del(sdata, dst);
c5dd9c2b 1410
ece1a2e7 1411 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1412 return 0;
1413}
1414
3b3a0162
JB		 1415static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1416 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1417{
14db74bc 1418 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1419 struct mesh_path *mpath;
1420 struct sta_info *sta;
1421
14db74bc
JB		 1422 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1423
d0709a65
JB		 1424 rcu_read_lock();
1425
abe60632 1426 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1427 if (!sta) {
1428 rcu_read_unlock();
c5dd9c2b 1429 return -ENOENT;
d0709a65 1430 }
c5dd9c2b 1431
bf7cd94d 1432 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1433 if (!mpath) {
1434 rcu_read_unlock();
c5dd9c2b
LCC		 1435 return -ENOENT;
1436 }
1437
1438 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1439
c5dd9c2b
LCC		 1440 rcu_read_unlock();
1441 return 0;
1442}
1443
1444static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1445 struct mpath_info *pinfo)
1446{
a3836e02
JB		 1447 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1448
1449 if (next_hop_sta)
1450 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1451 else
1452 memset(next_hop, 0, ETH_ALEN);
1453
7ce8c7a3
LAYS		 1454 memset(pinfo, 0, sizeof(*pinfo));
1455
f5ea9120
JB		 1456 pinfo->generation = mesh_paths_generation;
1457
c5dd9c2b 1458 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1459 MPATH_INFO_SN |
c5dd9c2b
LCC		 1460 MPATH_INFO_METRIC |
1461 MPATH_INFO_EXPTIME |
1462 MPATH_INFO_DISCOVERY_TIMEOUT |
1463 MPATH_INFO_DISCOVERY_RETRIES |
1464 MPATH_INFO_FLAGS;
1465
1466 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1467 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1468 pinfo->metric = mpath->metric;
1469 if (time_before(jiffies, mpath->exp_time))
1470 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1471 pinfo->discovery_timeout =
1472 jiffies_to_msecs(mpath->discovery_timeout);
1473 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1474 if (mpath->flags & MESH_PATH_ACTIVE)
1475 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1476 if (mpath->flags & MESH_PATH_RESOLVING)
1477 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1478 if (mpath->flags & MESH_PATH_SN_VALID)
1479 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1480 if (mpath->flags & MESH_PATH_FIXED)
1481 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1482 if (mpath->flags & MESH_PATH_RESOLVED)
1483 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1484}
1485
1486static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1487 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1488
1489{
14db74bc 1490 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1491 struct mesh_path *mpath;
1492
14db74bc
JB		 1493 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1494
c5dd9c2b 1495 rcu_read_lock();
bf7cd94d 1496 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1497 if (!mpath) {
1498 rcu_read_unlock();
1499 return -ENOENT;
1500 }
1501 memcpy(dst, mpath->dst, ETH_ALEN);
1502 mpath_set_pinfo(mpath, next_hop, pinfo);
1503 rcu_read_unlock();
1504 return 0;
1505}
1506
1507static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1508 int idx, u8 *dst, u8 *next_hop,
1509 struct mpath_info *pinfo)
c5dd9c2b 1510{
14db74bc 1511 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1512 struct mesh_path *mpath;
1513
14db74bc
JB		 1514 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1515
c5dd9c2b 1516 rcu_read_lock();
bf7cd94d 1517 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1518 if (!mpath) {
1519 rcu_read_unlock();
1520 return -ENOENT;
1521 }
1522 memcpy(dst, mpath->dst, ETH_ALEN);
1523 mpath_set_pinfo(mpath, next_hop, pinfo);
1524 rcu_read_unlock();
1525 return 0;
1526}
93da9cc1 1527
24bdd9f4 1528static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1529 struct net_device *dev,
1530 struct mesh_config *conf)
1531{
1532 struct ieee80211_sub_if_data *sdata;
1533 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1534
93da9cc1 1535 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1536 return 0;
1537}
1538
1539static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1540{
1541 return (mask >> (parm-1)) & 0x1;
1542}
1543
c80d545d
JC		 1544static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1545 const struct mesh_setup *setup)
1546{
1547 u8 *new_ie;
1548 const u8 *old_ie;
4bb62344
CYY		 1549 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1550 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1551
581a8b0f 1552 /* allocate information elements */
c80d545d 1553 new_ie = NULL;
581a8b0f 1554 old_ie = ifmsh->ie;
c80d545d 1555
581a8b0f
JC		 1556 if (setup->ie_len) {
1557 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1558 GFP_KERNEL);
1559 if (!new_ie)
1560 return -ENOMEM;
1561 }
581a8b0f
JC		 1562 ifmsh->ie_len = setup->ie_len;
1563 ifmsh->ie = new_ie;
1564 kfree(old_ie);
c80d545d
JC		 1565
1566 /* now copy the rest of the setup parameters */
1567 ifmsh->mesh_id_len = setup->mesh_id_len;
1568 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1569 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1570 ifmsh->mesh_pp_id = setup->path_sel_proto;
1571 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1572 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1573 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1574 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1575 if (setup->is_authenticated)
1576 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1577 if (setup->is_secure)
1578 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1579
4bb62344
CYY		 1580 /* mcast rate setting in Mesh Node */
1581 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1582 sizeof(setup->mcast_rate));
ffb3cf30 1583 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1584
9bdbf04d
MP		 1585 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1586 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1587
c80d545d
JC		 1588 return 0;
1589}
1590
24bdd9f4 1591static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1592 struct net_device *dev, u32 mask,
1593 const struct mesh_config *nconf)
93da9cc1 1594{
1595 struct mesh_config *conf;
1596 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1597 struct ieee80211_if_mesh *ifmsh;
1598
93da9cc1 1599 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1600 ifmsh = &sdata->u.mesh;
93da9cc1 1601
93da9cc1 1602 /* Set the config options which we are interested in setting */
1603 conf = &(sdata->u.mesh.mshcfg);
1604 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1605 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1606 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1607 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1608 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1609 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1610 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1611 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1612 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1613 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1614 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1615 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1616 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1617 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1618 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1619 if (ifmsh->user_mpm)
1620 return -EBUSY;
93da9cc1 1621 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1622 }
d299a1f2
JC		 1623 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1624 conf->dot11MeshNbrOffsetMaxNeighbor =
1625 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1626 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1627 conf->dot11MeshHWMPmaxPREQretries =
1628 nconf->dot11MeshHWMPmaxPREQretries;
1629 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1630 conf->path_refresh_time = nconf->path_refresh_time;
1631 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1632 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1633 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1634 conf->dot11MeshHWMPactivePathTimeout =
1635 nconf->dot11MeshHWMPactivePathTimeout;
1636 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1637 conf->dot11MeshHWMPpreqMinInterval =
1638 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1639 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1640 conf->dot11MeshHWMPperrMinInterval =
1641 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1642 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1643 mask))
1644 conf->dot11MeshHWMPnetDiameterTraversalTime =
1645 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1646 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1647 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1648 ieee80211_mesh_root_setup(ifmsh);
1649 }
16dd7267 1650 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1651 /* our current gate announcement implementation rides on root
1652 * announcements, so require this ifmsh to also be a root node
1653 * */
1654 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1655 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1656 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1657 ieee80211_mesh_root_setup(ifmsh);
1658 }
16dd7267
JC		 1659 conf->dot11MeshGateAnnouncementProtocol =
1660 nconf->dot11MeshGateAnnouncementProtocol;
1661 }
a4f606ea 1662 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1663 conf->dot11MeshHWMPRannInterval =
1664 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1665 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1666 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1667 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1668 /* our RSSI threshold implementation is supported only for
1669 * devices that report signal in dBm.
1670 */
1671 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1672 return -ENOTSUPP;
1673 conf->rssi_threshold = nconf->rssi_threshold;
1674 }
70c33eaa
AN		 1675 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1676 conf->ht_opmode = nconf->ht_opmode;
1677 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1678 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1679 }
ac1073a6
CYY		 1680 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1681 conf->dot11MeshHWMPactivePathToRootTimeout =
1682 nconf->dot11MeshHWMPactivePathToRootTimeout;
1683 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1684 conf->dot11MeshHWMProotInterval =
1685 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1686 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1687 conf->dot11MeshHWMPconfirmationInterval =
1688 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1689 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1690 conf->power_mode = nconf->power_mode;
1691 ieee80211_mps_local_status_update(sdata);
1692 }
2b5e1967 1693 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1694 conf->dot11MeshAwakeWindowDuration =
1695 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1696 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1697 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1698 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1699 return 0;
1700}
1701
29cbe68c
JB		 1702static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1703 const struct mesh_config *conf,
1704 const struct mesh_setup *setup)
1705{
1706 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1707 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1708 int err;
29cbe68c 1709
c80d545d
JC		 1710 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1711 err = copy_mesh_setup(ifmsh, setup);
1712 if (err)
1713 return err;
cc1d2806 1714
04ecd257
JB		 1715 /* can mesh use other SMPS modes? */
1716 sdata->smps_mode = IEEE80211_SMPS_OFF;
1717 sdata->needed_rx_chains = sdata->local->rx_chains;
1718
34a3740d 1719 mutex_lock(&sdata->local->mtx);
4bf88530 1720 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1721 IEEE80211_CHANCTX_SHARED);
34a3740d 1722 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1723 if (err)
1724 return err;
1725
2b5e1967 1726 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1727}
1728
1729static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1730{
1731 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1732
1733 ieee80211_stop_mesh(sdata);
34a3740d 1734 mutex_lock(&sdata->local->mtx);
55de908a 1735 ieee80211_vif_release_channel(sdata);
34a3740d 1736 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1737
1738 return 0;
1739}
c5dd9c2b
LCC		 1740#endif
1741
9f1ba906
JM		 1742static int ieee80211_change_bss(struct wiphy *wiphy,
1743 struct net_device *dev,
1744 struct bss_parameters *params)
1745{
55de908a
JB		 1746 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1747 enum ieee80211_band band;
9f1ba906
JM		 1748 u32 changed = 0;
1749
7ca133bc 1750 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1751 return -ENOENT;
1752
1753 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1754
9f1ba906 1755 if (params->use_cts_prot >= 0) {
bda3933a 1756 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1757 changed |= BSS_CHANGED_ERP_CTS_PROT;
1758 }
1759 if (params->use_short_preamble >= 0) {
bda3933a 1760 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1761 params->use_short_preamble;
1762 changed |= BSS_CHANGED_ERP_PREAMBLE;
1763 }
43d35343
FF		 1764
1765 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1766 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1767 sdata->vif.bss_conf.use_short_slot = true;
1768 changed |= BSS_CHANGED_ERP_SLOT;
1769 }
1770
9f1ba906 1771 if (params->use_short_slot_time >= 0) {
bda3933a 1772 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1773 params->use_short_slot_time;
1774 changed |= BSS_CHANGED_ERP_SLOT;
1775 }
1776
90c97a04 1777 if (params->basic_rates) {
2103dec1
SW		 1778 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1779 wiphy->bands[band],
1780 params->basic_rates,
1781 params->basic_rates_len,
1782 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 1783 changed |= BSS_CHANGED_BASIC_RATES;
1784 }
1785
7b7b5e56
FF		 1786 if (params->ap_isolate >= 0) {
1787 if (params->ap_isolate)
1788 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1789 else
1790 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1791 }
1792
80d7e403
HS		 1793 if (params->ht_opmode >= 0) {
1794 sdata->vif.bss_conf.ht_operation_mode =
1795 (u16) params->ht_opmode;
1796 changed |= BSS_CHANGED_HT;
1797 }
1798
339afbf4 1799 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1800 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1801 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1802 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1803 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1804 changed |= BSS_CHANGED_P2P_PS;
1805 }
1806
67baf663
JD		 1807 if (params->p2p_opp_ps > 0) {
1808 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1809 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1810 changed |= BSS_CHANGED_P2P_PS;
1811 } else if (params->p2p_opp_ps == 0) {
1812 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1813 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1814 changed |= BSS_CHANGED_P2P_PS;
1815 }
1816
9f1ba906
JM		 1817 ieee80211_bss_info_change_notify(sdata, changed);
1818
1819 return 0;
1820}
1821
31888487 1822static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1823 struct net_device *dev,
31888487
JM		 1824 struct ieee80211_txq_params *params)
1825{
1826 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1827 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1828 struct ieee80211_tx_queue_params p;
1829
1830 if (!local->ops->conf_tx)
1831 return -EOPNOTSUPP;
1832
54bcbc69
JB		 1833 if (local->hw.queues < IEEE80211_NUM_ACS)
1834 return -EOPNOTSUPP;
1835
31888487
JM		 1836 memset(&p, 0, sizeof(p));
1837 p.aifs = params->aifs;
1838 p.cw_max = params->cwmax;
1839 p.cw_min = params->cwmin;
1840 p.txop = params->txop;
ab13315a
KV		 1841
1842 /*
1843 * Setting tx queue params disables u-apsd because it's only
1844 * called in master mode.
1845 */
1846 p.uapsd = false;
1847
a3304b0a
JB		 1848 sdata->tx_conf[params->ac] = p;
1849 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 1850 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 1851 "failed to set TX queue parameters for AC %d\n",
1852 params->ac);
31888487
JM		 1853 return -EINVAL;
1854 }
1855
7d25745d
JB		 1856 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1857
31888487
JM		 1858 return 0;
1859}
1860
665af4fc 1861#ifdef CONFIG_PM
ff1b6e69
JB		 1862static int ieee80211_suspend(struct wiphy *wiphy,
1863 struct cfg80211_wowlan *wowlan)
665af4fc 1864{
eecc4800 1865 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1866}
1867
1868static int ieee80211_resume(struct wiphy *wiphy)
1869{
1870 return __ieee80211_resume(wiphy_priv(wiphy));
1871}
1872#else
1873#define ieee80211_suspend NULL
1874#define ieee80211_resume NULL
1875#endif
1876
2a519311 1877static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 1878 struct cfg80211_scan_request *req)
1879{
fd014284
JB		 1880 struct ieee80211_sub_if_data *sdata;
1881
1882 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 1883
2ca27bcf
JB		 1884 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1885 case NL80211_IFTYPE_STATION:
1886 case NL80211_IFTYPE_ADHOC:
1887 case NL80211_IFTYPE_MESH_POINT:
1888 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 1889 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 1890 break;
1891 case NL80211_IFTYPE_P2P_GO:
1892 if (sdata->local->ops->hw_scan)
1893 break;
e9d7732e
JB		 1894 /*
1895 * FIXME: implement NoA while scanning in software,
1896 * for now fall through to allow scanning only when
1897 * beaconing hasn't been configured yet
1898 */
2ca27bcf 1899 case NL80211_IFTYPE_AP:
5c95b940
AQ		 1900 /*
1901 * If the scan has been forced (and the driver supports
1902 * forcing), don't care about being beaconing already.
1903 * This will create problems to the attached stations (e.g. all
1904 * the frames sent while scanning on other channel will be
1905 * lost)
1906 */
1907 if (sdata->u.ap.beacon &&
1908 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1909 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 1910 return -EOPNOTSUPP;
1911 break;
1912 default:
1913 return -EOPNOTSUPP;
1914 }
2a519311
JB		 1915
1916 return ieee80211_request_scan(sdata, req);
1917}
1918
79f460ca
LC		 1919static int
1920ieee80211_sched_scan_start(struct wiphy *wiphy,
1921 struct net_device *dev,
1922 struct cfg80211_sched_scan_request *req)
1923{
1924 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1925
1926 if (!sdata->local->ops->sched_scan_start)
1927 return -EOPNOTSUPP;
1928
1929 return ieee80211_request_sched_scan_start(sdata, req);
1930}
1931
1932static int
85a9994a 1933ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 1934{
1935 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1936
1937 if (!sdata->local->ops->sched_scan_stop)
1938 return -EOPNOTSUPP;
1939
85a9994a 1940 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 1941}
1942
636a5d36
JM		 1943static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1944 struct cfg80211_auth_request *req)
1945{
77fdaa12 1946 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1947}
1948
1949static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1950 struct cfg80211_assoc_request *req)
1951{
77fdaa12 1952 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1953}
1954
1955static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 1956 struct cfg80211_deauth_request *req)
636a5d36 1957{
63c9c5e7 1958 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1959}
1960
1961static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 1962 struct cfg80211_disassoc_request *req)
636a5d36 1963{
63c9c5e7 1964 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1965}
1966
af8cdcd8
JB		 1967static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1968 struct cfg80211_ibss_params *params)
1969{
55de908a 1970 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 1971}
1972
1973static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1974{
55de908a 1975 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 1976}
1977
391e53e3
AQ		 1978static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
1979 int rate[IEEE80211_NUM_BANDS])
1980{
1981 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1982
9887dbf5
CD		 1983 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
1984 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 1985
1986 return 0;
1987}
1988
b9a5f8ca
JM		 1989static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1990{
1991 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 1992 int err;
b9a5f8ca 1993
f23a4780
AN		 1994 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1995 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1996
1997 if (err)
1998 return err;
1999 }
2000
310bc676
LT		 2001 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2002 err = drv_set_coverage_class(local, wiphy->coverage_class);
2003
2004 if (err)
2005 return err;
2006 }
2007
b9a5f8ca 2008 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2009 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2010
24487981
JB		 2011 if (err)
2012 return err;
b9a5f8ca
JM		 2013 }
2014
8bc83c24
JB		 2015 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2016 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2017 return -EINVAL;
b9a5f8ca 2018 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2019 }
2020 if (changed & WIPHY_PARAM_RETRY_LONG) {
2021 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2022 return -EINVAL;
b9a5f8ca 2023 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2024 }
b9a5f8ca
JM		 2025 if (changed &
2026 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2027 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2028
2029 return 0;
2030}
2031
7643a2c3 2032static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2033 struct wireless_dev *wdev,
fa61cf70 2034 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2035{
2036 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2037 struct ieee80211_sub_if_data *sdata;
7643a2c3 2038
1ea6f9c0
JB		 2039 if (wdev) {
2040 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2041
2042 switch (type) {
2043 case NL80211_TX_POWER_AUTOMATIC:
2044 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2045 break;
2046 case NL80211_TX_POWER_LIMITED:
2047 case NL80211_TX_POWER_FIXED:
2048 if (mbm < 0 || (mbm % 100))
2049 return -EOPNOTSUPP;
2050 sdata->user_power_level = MBM_TO_DBM(mbm);
2051 break;
2052 }
2053
2054 ieee80211_recalc_txpower(sdata);
2055
2056 return 0;
2057 }
55de908a 2058
7643a2c3 2059 switch (type) {
fa61cf70 2060 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2061 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
7643a2c3 2062 break;
fa61cf70 2063 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2064 case NL80211_TX_POWER_FIXED:
2065 if (mbm < 0 || (mbm % 100))
2066 return -EOPNOTSUPP;
fa61cf70 2067 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2068 break;
7643a2c3
JB		 2069 }
2070
1ea6f9c0
JB		 2071 mutex_lock(&local->iflist_mtx);
2072 list_for_each_entry(sdata, &local->interfaces, list)
2073 sdata->user_power_level = local->user_power_level;
2074 list_for_each_entry(sdata, &local->interfaces, list)
2075 ieee80211_recalc_txpower(sdata);
2076 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2077
2078 return 0;
2079}
2080
c8442118
JB		 2081static int ieee80211_get_tx_power(struct wiphy *wiphy,
2082 struct wireless_dev *wdev,
2083 int *dbm)
7643a2c3
JB		 2084{
2085 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2086 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2087
1ea6f9c0
JB		 2088 if (!local->use_chanctx)
2089 *dbm = local->hw.conf.power_level;
2090 else
2091 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2092
7643a2c3
JB		 2093 return 0;
2094}
2095
ab737a4f 2096static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2097 const u8 *addr)
ab737a4f
JB		 2098{
2099 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2100
2101 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2102
2103 return 0;
2104}
2105
1f87f7d3
JB		 2106static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2107{
2108 struct ieee80211_local *local = wiphy_priv(wiphy);
2109
2110 drv_rfkill_poll(local);
2111}
2112
aff89a9b 2113#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2114static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2115 struct wireless_dev *wdev,
2116 void *data, int len)
aff89a9b
JB		 2117{
2118 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2119 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2120
2121 if (!local->ops->testmode_cmd)
2122 return -EOPNOTSUPP;
2123
52981cd7
DS		 2124 if (wdev) {
2125 struct ieee80211_sub_if_data *sdata;
2126
2127 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2128 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2129 vif = &sdata->vif;
2130 }
2131
2132 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2133}
71063f0e
WYG		 2134
2135static int ieee80211_testmode_dump(struct wiphy *wiphy,
2136 struct sk_buff *skb,
2137 struct netlink_callback *cb,
2138 void *data, int len)
2139{
2140 struct ieee80211_local *local = wiphy_priv(wiphy);
2141
2142 if (!local->ops->testmode_dump)
2143 return -EOPNOTSUPP;
2144
2145 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2146}
aff89a9b
JB		 2147#endif
2148
687da132
EG		 2149int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2150 enum ieee80211_smps_mode smps_mode)
2151{
2152 struct sta_info *sta;
2153 enum ieee80211_smps_mode old_req;
2154 int i;
2155
2156 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2157 return -EINVAL;
2158
2159 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2160 return 0;
2161
2162 old_req = sdata->u.ap.req_smps;
2163 sdata->u.ap.req_smps = smps_mode;
2164
2165 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2166 if (old_req == smps_mode ||
2167 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2168 return 0;
2169
2170 /* If no associated stations, there's no need to do anything */
2171 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2172 sdata->smps_mode = smps_mode;
2173 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2174 return 0;
2175 }
2176
2177 ht_dbg(sdata,
2178 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2179 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2180
2181 mutex_lock(&sdata->local->sta_mtx);
2182 for (i = 0; i < STA_HASH_SIZE; i++) {
2183 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2184 lockdep_is_held(&sdata->local->sta_mtx));
2185 sta;
2186 sta = rcu_dereference_protected(sta->hnext,
2187 lockdep_is_held(&sdata->local->sta_mtx))) {
2188 /*
2189 * Only stations associated to our AP and
2190 * associated VLANs
2191 */
2192 if (sta->sdata->bss != &sdata->u.ap)
2193 continue;
2194
2195 /* This station doesn't support MIMO - skip it */
2196 if (sta_info_tx_streams(sta) == 1)
2197 continue;
2198
2199 /*
2200 * Don't wake up a STA just to send the action frame
2201 * unless we are getting more restrictive.
2202 */
2203 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2204 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2205 smps_mode)) {
2206 ht_dbg(sdata,
2207 "Won't send SMPS to sleeping STA %pM\n",
2208 sta->sta.addr);
2209 continue;
2210 }
2211
2212 /*
2213 * If the STA is not authorized, wait until it gets
2214 * authorized and the action frame will be sent then.
2215 */
2216 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2217 continue;
2218
2219 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2220 ieee80211_send_smps_action(sdata, smps_mode,
2221 sta->sta.addr,
2222 sdata->vif.bss_conf.bssid);
2223 }
2224 }
2225 mutex_unlock(&sdata->local->sta_mtx);
2226
2227 sdata->smps_mode = smps_mode;
2228 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2229
2230 return 0;
2231}
2232
2233int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2234 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2235{
2236 const u8 *ap;
2237 enum ieee80211_smps_mode old_req;
2238 int err;
2239
8d61ffa5 2240 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2241
687da132
EG		 2242 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2243 return -EINVAL;
2244
0f78231b
JB		 2245 old_req = sdata->u.mgd.req_smps;
2246 sdata->u.mgd.req_smps = smps_mode;
2247
2248 if (old_req == smps_mode &&
2249 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2250 return 0;
2251
2252 /*
2253 * If not associated, or current association is not an HT
04ecd257
JB		 2254 * association, there's no need to do anything, just store
2255 * the new value until we associate.
0f78231b
JB		 2256 */
2257 if (!sdata->u.mgd.associated ||
4bf88530 2258 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2259 return 0;
0f78231b 2260
0c1ad2ca 2261 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2262
2263 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2264 if (sdata->u.mgd.powersave)
2265 smps_mode = IEEE80211_SMPS_DYNAMIC;
2266 else
2267 smps_mode = IEEE80211_SMPS_OFF;
2268 }
2269
2270 /* send SM PS frame to AP */
2271 err = ieee80211_send_smps_action(sdata, smps_mode,
2272 ap, ap);
2273 if (err)
2274 sdata->u.mgd.req_smps = old_req;
2275
2276 return err;
2277}
2278
bc92afd9
JB		 2279static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2280 bool enabled, int timeout)
2281{
2282 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2283 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2284
2d3db210 2285 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2286 return -EOPNOTSUPP;
2287
bc92afd9
JB		 2288 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2289 return -EOPNOTSUPP;
2290
2291 if (enabled == sdata->u.mgd.powersave &&
ff616381 2292 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2293 return 0;
2294
2295 sdata->u.mgd.powersave = enabled;
ff616381 2296 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2297
0f78231b 2298 /* no change, but if automatic follow powersave */
ed405be5 2299 sdata_lock(sdata);
687da132 2300 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2301 sdata_unlock(sdata);
0f78231b 2302
bc92afd9
JB		 2303 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2304 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2305
2306 ieee80211_recalc_ps(local, -1);
ab095877 2307 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2308
2309 return 0;
2310}
2311
a97c13c3
JO		 2312static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2313 struct net_device *dev,
2314 s32 rssi_thold, u32 rssi_hyst)
2315{
2316 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2317 struct ieee80211_vif *vif = &sdata->vif;
2318 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2319
a97c13c3
JO		 2320 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2321 rssi_hyst == bss_conf->cqm_rssi_hyst)
2322 return 0;
2323
2324 bss_conf->cqm_rssi_thold = rssi_thold;
2325 bss_conf->cqm_rssi_hyst = rssi_hyst;
2326
2327 /* tell the driver upon association, unless already associated */
ea086359
JB		 2328 if (sdata->u.mgd.associated &&
2329 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2330 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2331
2332 return 0;
2333}
2334
9930380f
JB		 2335static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2336 struct net_device *dev,
2337 const u8 *addr,
2338 const struct cfg80211_bitrate_mask *mask)
2339{
2340 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2341 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2342 int i, ret;
2c7e6bc9 2343
554a43d5
EP		 2344 if (!ieee80211_sdata_running(sdata))
2345 return -ENETDOWN;
2346
bdbfd6b5
SM		 2347 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2348 ret = drv_set_bitrate_mask(local, sdata, mask);
2349 if (ret)
2350 return ret;
2351 }
9930380f 2352
19468413 2353 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2354 struct ieee80211_supported_band *sband = wiphy->bands[i];
2355 int j;
2356
37eb0b16 2357 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2358 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2359 sizeof(mask->control[i].ht_mcs));
2ffbe6d3
FF		 2360
2361 sdata->rc_has_mcs_mask[i] = false;
2362 if (!sband)
2363 continue;
2364
2365 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2366 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2367 sdata->rc_has_mcs_mask[i] = true;
2368 break;
2369 }
19468413 2370 }
9930380f 2371
37eb0b16 2372 return 0;
9930380f
JB		 2373}
2374
2eb278e0
JB		 2375static int ieee80211_start_roc_work(struct ieee80211_local *local,
2376 struct ieee80211_sub_if_data *sdata,
2377 struct ieee80211_channel *channel,
2eb278e0 2378 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2379 struct sk_buff *txskb,
2380 enum ieee80211_roc_type type)
2eb278e0
JB		 2381{
2382 struct ieee80211_roc_work *roc, *tmp;
2383 bool queued = false;
21f83589 2384 int ret;
21f83589
JB		 2385
2386 lockdep_assert_held(&local->mtx);
2387
fe57d9f5
JB		 2388 if (local->use_chanctx && !local->ops->remain_on_channel)
2389 return -EOPNOTSUPP;
2390
2eb278e0
JB		 2391 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2392 if (!roc)
2393 return -ENOMEM;
2394
2fae062e
IP		 2395 /*
2396 * If the duration is zero, then the driver
2397 * wouldn't actually do anything. Set it to
2398 * 10 for now.
2399 *
2400 * TODO: cancel the off-channel operation
2401 * when we get the SKB's TX status and
2402 * the wait time was zero before.
2403 */
2404 if (!duration)
2405 duration = 10;
2406
2eb278e0 2407 roc->chan = channel;
2eb278e0
JB		 2408 roc->duration = duration;
2409 roc->req_duration = duration;
2410 roc->frame = txskb;
d339d5ca 2411 roc->type = type;
2eb278e0
JB		 2412 roc->mgmt_tx_cookie = (unsigned long)txskb;
2413 roc->sdata = sdata;
2414 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2415 INIT_LIST_HEAD(&roc->dependents);
2416
2f617435
EP		 2417 /*
2418 * cookie is either the roc cookie (for normal roc)
2419 * or the SKB (for mgmt TX)
2420 */
2421 if (!txskb) {
2422 /* local->mtx protects this */
2423 local->roc_cookie_counter++;
2424 roc->cookie = local->roc_cookie_counter;
2425 /* wow, you wrapped 64 bits ... more likely a bug */
2426 if (WARN_ON(roc->cookie == 0)) {
2427 roc->cookie = 1;
2428 local->roc_cookie_counter++;
2429 }
2430 *cookie = roc->cookie;
2431 } else {
2432 *cookie = (unsigned long)txskb;
2433 }
2434
2eb278e0 2435 /* if there's one pending or we're scanning, queue this one */
164eb02d
SW		 2436 if (!list_empty(&local->roc_list) ||
2437 local->scanning || local->radar_detect_enabled)
2eb278e0
JB		 2438 goto out_check_combine;
2439
2440 /* if not HW assist, just queue & schedule work */
2441 if (!local->ops->remain_on_channel) {
2442 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2443 goto out_queue;
2444 }
2445
2446 /* otherwise actually kick it off here (for error handling) */
2447
d339d5ca 2448 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2449 if (ret) {
2eb278e0
JB		 2450 kfree(roc);
2451 return ret;
21f83589
JB		 2452 }
2453
2eb278e0
JB		 2454 roc->started = true;
2455 goto out_queue;
2456
2457 out_check_combine:
2458 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2459 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2460 continue;
2461
2462 /*
2463 * Extend this ROC if possible:
2464 *
2465 * If it hasn't started yet, just increase the duration
2466 * and add the new one to the list of dependents.
d339d5ca
IP		 2467 * If the type of the new ROC has higher priority, modify the
2468 * type of the previous one to match that of the new one.
2eb278e0
JB		 2469 */
2470 if (!tmp->started) {
2471 list_add_tail(&roc->list, &tmp->dependents);
2472 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2473 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2474 queued = true;
2475 break;
2476 }
2477
2478 /* If it has already started, it's more difficult ... */
2479 if (local->ops->remain_on_channel) {
2480 unsigned long j = jiffies;
2481
2482 /*
2483 * In the offloaded ROC case, if it hasn't begun, add
2484 * this new one to the dependent list to be handled
d339d5ca 2485 * when the master one begins. If it has begun,
2eb278e0
JB		 2486 * check that there's still a minimum time left and
2487 * if so, start this one, transmitting the frame, but
d339d5ca 2488 * add it to the list directly after this one with
2eb278e0
JB		 2489 * a reduced time so we'll ask the driver to execute
2490 * it right after finishing the previous one, in the
2491 * hope that it'll also be executed right afterwards,
2492 * effectively extending the old one.
2493 * If there's no minimum time left, just add it to the
2494 * normal list.
d339d5ca
IP		 2495 * TODO: the ROC type is ignored here, assuming that it
2496 * is better to immediately use the current ROC.
2eb278e0
JB		 2497 */
2498 if (!tmp->hw_begun) {
2499 list_add_tail(&roc->list, &tmp->dependents);
2500 queued = true;
2501 break;
2502 }
2503
2504 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2505 tmp->hw_start_time +
2506 msecs_to_jiffies(tmp->duration))) {
2507 int new_dur;
2508
2509 ieee80211_handle_roc_started(roc);
2510
2511 new_dur = roc->duration -
2512 jiffies_to_msecs(tmp->hw_start_time +
2513 msecs_to_jiffies(
2514 tmp->duration) -
2515 j);
2516
2517 if (new_dur > 0) {
2518 /* add right after tmp */
2519 list_add(&roc->list, &tmp->list);
2520 } else {
2521 list_add_tail(&roc->list,
2522 &tmp->dependents);
2523 }
2524 queued = true;
2525 }
2526 } else if (del_timer_sync(&tmp->work.timer)) {
2527 unsigned long new_end;
2528
2529 /*
2530 * In the software ROC case, cancel the timer, if
2531 * that fails then the finish work is already
2532 * queued/pending and thus we queue the new ROC
2533 * normally, if that succeeds then we can extend
2534 * the timer duration and TX the frame (if any.)
2535 */
2536
2537 list_add_tail(&roc->list, &tmp->dependents);
2538 queued = true;
2539
2540 new_end = jiffies + msecs_to_jiffies(roc->duration);
2541
2542 /* ok, it was started & we canceled timer */
2543 if (time_after(new_end, tmp->work.timer.expires))
2544 mod_timer(&tmp->work.timer, new_end);
2545 else
2546 add_timer(&tmp->work.timer);
2547
2548 ieee80211_handle_roc_started(roc);
2549 }
2550 break;
2551 }
2552
2553 out_queue:
2554 if (!queued)
2555 list_add_tail(&roc->list, &local->roc_list);
2556
2eb278e0 2557 return 0;
21f83589
JB		 2558}
2559
b8bc4b0a 2560static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2561 struct wireless_dev *wdev,
b8bc4b0a 2562 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2563 unsigned int duration,
2564 u64 *cookie)
2565{
71bbc994 2566 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2567 struct ieee80211_local *local = sdata->local;
2eb278e0 2568 int ret;
21f83589 2569
2eb278e0 2570 mutex_lock(&local->mtx);
42d97a59 2571 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2572 duration, cookie, NULL,
2573 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2574 mutex_unlock(&local->mtx);
b8bc4b0a 2575
2eb278e0 2576 return ret;
b8bc4b0a
JB		 2577}
2578
2eb278e0
JB		 2579static int ieee80211_cancel_roc(struct ieee80211_local *local,
2580 u64 cookie, bool mgmt_tx)
21f83589 2581{
2eb278e0 2582 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2583 int ret;
2584
2eb278e0
JB		 2585 mutex_lock(&local->mtx);
2586 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2587 struct ieee80211_roc_work *dep, *tmp2;
2588
2589 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2590 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2591 continue;
2592 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2593 continue;
2594 /* found dependent item -- just remove it */
2595 list_del(&dep->list);
2596 mutex_unlock(&local->mtx);
2597
3fbd45ca 2598 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2599 return 0;
2600 }
2601
50febf6a 2602 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2603 continue;
2604 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2605 continue;
21f83589 2606
2eb278e0
JB		 2607 found = roc;
2608 break;
2609 }
21f83589 2610
2eb278e0
JB		 2611 if (!found) {
2612 mutex_unlock(&local->mtx);
2613 return -ENOENT;
2614 }
21f83589 2615
e979e33c
JB		 2616 /*
2617 * We found the item to cancel, so do that. Note that it
2618 * may have dependents, which we also cancel (and send
2619 * the expired signal for.) Not doing so would be quite
2620 * tricky here, but we may need to fix it later.
2621 */
2622
2eb278e0
JB		 2623 if (local->ops->remain_on_channel) {
2624 if (found->started) {
2625 ret = drv_cancel_remain_on_channel(local);
2626 if (WARN_ON_ONCE(ret)) {
2627 mutex_unlock(&local->mtx);
2628 return ret;
2629 }
2630 }
21f83589 2631
2eb278e0 2632 list_del(&found->list);
21f83589 2633
0f6b3f59
JB		 2634 if (found->started)
2635 ieee80211_start_next_roc(local);
2eb278e0 2636 mutex_unlock(&local->mtx);
21f83589 2637
3fbd45ca 2638 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2639 } else {
2640 /* work may be pending so use it all the time */
2641 found->abort = true;
2642 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2643
21f83589
JB		 2644 mutex_unlock(&local->mtx);
2645
2eb278e0
JB		 2646 /* work will clean up etc */
2647 flush_delayed_work(&found->work);
3fbd45ca
JB		 2648 WARN_ON(!found->to_be_freed);
2649 kfree(found);
21f83589 2650 }
b8bc4b0a 2651
2eb278e0 2652 return 0;
b8bc4b0a
JB		 2653}
2654
2eb278e0 2655static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2656 struct wireless_dev *wdev,
2eb278e0 2657 u64 cookie)
f30221e4 2658{
71bbc994 2659 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2660 struct ieee80211_local *local = sdata->local;
f30221e4 2661
2eb278e0 2662 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2663}
2664
164eb02d
SW		 2665static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2666 struct net_device *dev,
31559f35
JD		 2667 struct cfg80211_chan_def *chandef,
2668 u32 cac_time_ms)
164eb02d
SW		 2669{
2670 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2671 struct ieee80211_local *local = sdata->local;
164eb02d
SW		 2672 int err;
2673
34a3740d
JB		 2674 mutex_lock(&local->mtx);
2675 if (!list_empty(&local->roc_list) || local->scanning) {
2676 err = -EBUSY;
2677 goto out_unlock;
2678 }
164eb02d
SW		 2679
2680 /* whatever, but channel contexts should not complain about that one */
2681 sdata->smps_mode = IEEE80211_SMPS_OFF;
2682 sdata->needed_rx_chains = local->rx_chains;
164eb02d 2683
164eb02d
SW		 2684 err = ieee80211_vif_use_channel(sdata, chandef,
2685 IEEE80211_CHANCTX_SHARED);
164eb02d 2686 if (err)
34a3740d 2687 goto out_unlock;
164eb02d 2688
164eb02d 2689 ieee80211_queue_delayed_work(&sdata->local->hw,
31559f35
JD		 2690 &sdata->dfs_cac_timer_work,
2691 msecs_to_jiffies(cac_time_ms));
164eb02d 2692
34a3740d
JB		 2693 out_unlock:
2694 mutex_unlock(&local->mtx);
2695 return err;
164eb02d
SW		 2696}
2697
73da7d5b
SW		 2698static struct cfg80211_beacon_data *
2699cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2700{
2701 struct cfg80211_beacon_data *new_beacon;
2702 u8 *pos;
2703 int len;
2704
2705 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2706 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2707 beacon->probe_resp_len;
2708
2709 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2710 if (!new_beacon)
2711 return NULL;
2712
2713 pos = (u8 *)(new_beacon + 1);
2714 if (beacon->head_len) {
2715 new_beacon->head_len = beacon->head_len;
2716 new_beacon->head = pos;
2717 memcpy(pos, beacon->head, beacon->head_len);
2718 pos += beacon->head_len;
2719 }
2720 if (beacon->tail_len) {
2721 new_beacon->tail_len = beacon->tail_len;
2722 new_beacon->tail = pos;
2723 memcpy(pos, beacon->tail, beacon->tail_len);
2724 pos += beacon->tail_len;
2725 }
2726 if (beacon->beacon_ies_len) {
2727 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2728 new_beacon->beacon_ies = pos;
2729 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2730 pos += beacon->beacon_ies_len;
2731 }
2732 if (beacon->proberesp_ies_len) {
2733 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2734 new_beacon->proberesp_ies = pos;
2735 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2736 pos += beacon->proberesp_ies_len;
2737 }
2738 if (beacon->assocresp_ies_len) {
2739 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2740 new_beacon->assocresp_ies = pos;
2741 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2742 pos += beacon->assocresp_ies_len;
2743 }
2744 if (beacon->probe_resp_len) {
2745 new_beacon->probe_resp_len = beacon->probe_resp_len;
2746 beacon->probe_resp = pos;
2747 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2748 pos += beacon->probe_resp_len;
2749 }
2750
2751 return new_beacon;
2752}
2753
66e01cf9 2754void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2755{
66e01cf9 2756 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2757
66e01cf9
LC		 2758 ieee80211_queue_work(&sdata->local->hw,
2759 &sdata->csa_finalize_work);
2760}
2761EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 2762
66199506
MK		 2763static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2764 u32 *changed)
66e01cf9 2765{
66199506 2766 int err;
7578d575 2767
cd7760e6
SW		 2768 switch (sdata->vif.type) {
2769 case NL80211_IFTYPE_AP:
af296bdb
MK		 2770 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2771 NULL);
97518af1
MK		 2772 kfree(sdata->u.ap.next_beacon);
2773 sdata->u.ap.next_beacon = NULL;
2774
cd7760e6 2775 if (err < 0)
66199506
MK		 2776 return err;
2777 *changed |= err;
cd7760e6
SW		 2778 break;
2779 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 2780 err = ieee80211_ibss_finish_csa(sdata);
2781 if (err < 0)
66199506
MK		 2782 return err;
2783 *changed |= err;
cd7760e6 2784 break;
b8456a14
CYY		 2785#ifdef CONFIG_MAC80211_MESH
2786 case NL80211_IFTYPE_MESH_POINT:
2787 err = ieee80211_mesh_finish_csa(sdata);
2788 if (err < 0)
66199506
MK		 2789 return err;
2790 *changed |= err;
b8456a14
CYY		 2791 break;
2792#endif
cd7760e6
SW		 2793 default:
2794 WARN_ON(1);
66199506
MK		 2795 return -EINVAL;
2796 }
2797
2798 return 0;
2799}
2800
cf8767dd 2801static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
66199506
MK		 2802{
2803 struct ieee80211_local *local = sdata->local;
2804 u32 changed = 0;
2805 int err;
2806
2807 sdata_assert_lock(sdata);
2808 lockdep_assert_held(&local->mtx);
2809
2810 sdata->radar_required = sdata->csa_radar_required;
2811 err = ieee80211_vif_change_channel(sdata, &changed);
cf8767dd
MK		 2812 if (err < 0)
2813 return err;
66199506
MK		 2814
2815 if (!local->use_chanctx) {
2816 local->_oper_chandef = sdata->csa_chandef;
2817 ieee80211_hw_config(local, 0);
cd7760e6 2818 }
73da7d5b 2819
66199506
MK		 2820 sdata->vif.csa_active = false;
2821
2822 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2823 if (err)
cf8767dd 2824 return err;
faf046e7 2825
66199506 2826 ieee80211_bss_info_change_notify(sdata, changed);
59af6928
MK		 2827 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2828
2829 if (!ieee80211_csa_needs_block_tx(local))
2830 ieee80211_wake_queues_by_reason(&local->hw,
73da7d5b 2831 IEEE80211_MAX_QUEUE_MAP,
cca07b00
LC		 2832 IEEE80211_QUEUE_STOP_REASON_CSA,
2833 false);
cf8767dd
MK		 2834
2835 return 0;
2836}
2837
2838static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2839{
2840 if (__ieee80211_csa_finalize(sdata)) {
2841 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2842 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2843 GFP_KERNEL);
2844 }
66e01cf9
LC		 2845}
2846
2847void ieee80211_csa_finalize_work(struct work_struct *work)
2848{
2849 struct ieee80211_sub_if_data *sdata =
2850 container_of(work, struct ieee80211_sub_if_data,
2851 csa_finalize_work);
59af6928 2852 struct ieee80211_local *local = sdata->local;
66e01cf9
LC		 2853
2854 sdata_lock(sdata);
59af6928
MK		 2855 mutex_lock(&local->mtx);
2856
66e01cf9
LC		 2857 /* AP might have been stopped while waiting for the lock. */
2858 if (!sdata->vif.csa_active)
2859 goto unlock;
2860
2861 if (!ieee80211_sdata_running(sdata))
2862 goto unlock;
2863
2864 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 2865
2866unlock:
59af6928 2867 mutex_unlock(&local->mtx);
e487eaeb 2868 sdata_unlock(sdata);
73da7d5b
SW		 2869}
2870
37fa2bdd
MK		 2871static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2872 struct cfg80211_csa_settings *params,
2873 u32 *changed)
73da7d5b 2874{
af296bdb 2875 struct ieee80211_csa_settings csa = {};
37fa2bdd 2876 int err;
73da7d5b 2877
73da7d5b
SW		 2878 switch (sdata->vif.type) {
2879 case NL80211_IFTYPE_AP:
cd7760e6
SW		 2880 sdata->u.ap.next_beacon =
2881 cfg80211_beacon_dup(&params->beacon_after);
2882 if (!sdata->u.ap.next_beacon)
2883 return -ENOMEM;
2884
66e01cf9
LC		 2885 /*
2886 * With a count of 0, we don't have to wait for any
2887 * TBTT before switching, so complete the CSA
2888 * immediately. In theory, with a count == 1 we
2889 * should delay the switch until just before the next
2890 * TBTT, but that would complicate things so we switch
2891 * immediately too. If we would delay the switch
2892 * until the next TBTT, we would have to set the probe
2893 * response here.
2894 *
2895 * TODO: A channel switch with count <= 1 without
2896 * sending a CSA action frame is kind of useless,
2897 * because the clients won't know we're changing
2898 * channels. The action frame must be implemented
2899 * either here or in the userspace.
2900 */
2901 if (params->count <= 1)
2902 break;
2903
0d06d9ba
AO		 2904 if ((params->n_counter_offsets_beacon >
2905 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2906 (params->n_counter_offsets_presp >
2907 IEEE80211_MAX_CSA_COUNTERS_NUM))
2908 return -EINVAL;
9a774c78 2909
af296bdb
MK		 2910 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2911 csa.counter_offsets_presp = params->counter_offsets_presp;
2912 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2913 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2914 csa.count = params->count;
9a774c78 2915
af296bdb 2916 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
cd7760e6
SW		 2917 if (err < 0) {
2918 kfree(sdata->u.ap.next_beacon);
2919 return err;
2920 }
37fa2bdd 2921 *changed |= err;
66e01cf9 2922
cd7760e6
SW		 2923 break;
2924 case NL80211_IFTYPE_ADHOC:
2925 if (!sdata->vif.bss_conf.ibss_joined)
2926 return -EINVAL;
2927
2928 if (params->chandef.width != sdata->u.ibss.chandef.width)
2929 return -EINVAL;
2930
2931 switch (params->chandef.width) {
2932 case NL80211_CHAN_WIDTH_40:
2933 if (cfg80211_get_chandef_type(&params->chandef) !=
2934 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2935 return -EINVAL;
2936 case NL80211_CHAN_WIDTH_5:
2937 case NL80211_CHAN_WIDTH_10:
2938 case NL80211_CHAN_WIDTH_20_NOHT:
2939 case NL80211_CHAN_WIDTH_20:
2940 break;
2941 default:
2942 return -EINVAL;
2943 }
2944
2945 /* changes into another band are not supported */
2946 if (sdata->u.ibss.chandef.chan->band !=
2947 params->chandef.chan->band)
2948 return -EINVAL;
2949
66e01cf9
LC		 2950 /* see comments in the NL80211_IFTYPE_AP block */
2951 if (params->count > 1) {
2952 err = ieee80211_ibss_csa_beacon(sdata, params);
2953 if (err < 0)
2954 return err;
37fa2bdd 2955 *changed |= err;
66e01cf9
LC		 2956 }
2957
2958 ieee80211_send_action_csa(sdata, params);
2959
73da7d5b 2960 break;
c6da674a 2961#ifdef CONFIG_MAC80211_MESH
37fa2bdd
MK		 2962 case NL80211_IFTYPE_MESH_POINT: {
2963 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a 2964
c6da674a
CYY		 2965 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
2966 return -EINVAL;
2967
2968 /* changes into another band are not supported */
2969 if (sdata->vif.bss_conf.chandef.chan->band !=
2970 params->chandef.chan->band)
2971 return -EINVAL;
2972
c782bf8c 2973 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 2974 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 2975 if (!ifmsh->pre_value)
2976 ifmsh->pre_value = 1;
2977 else
2978 ifmsh->pre_value++;
2979 }
0cb4d4dc 2980
66e01cf9
LC		 2981 /* see comments in the NL80211_IFTYPE_AP block */
2982 if (params->count > 1) {
2983 err = ieee80211_mesh_csa_beacon(sdata, params);
2984 if (err < 0) {
2985 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
2986 return err;
2987 }
37fa2bdd 2988 *changed |= err;
3f718fd8 2989 }
66e01cf9
LC		 2990
2991 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
2992 ieee80211_send_action_csa(sdata, params);
2993
c6da674a 2994 break;
37fa2bdd 2995 }
c6da674a 2996#endif
73da7d5b
SW		 2997 default:
2998 return -EOPNOTSUPP;
2999 }
3000
37fa2bdd
MK		 3001 return 0;
3002}
3003
f29f58a9
LC		 3004static int
3005__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3006 struct cfg80211_csa_settings *params)
37fa2bdd
MK		 3007{
3008 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3009 struct ieee80211_local *local = sdata->local;
2b32713d 3010 struct ieee80211_chanctx_conf *conf;
37fa2bdd
MK		 3011 struct ieee80211_chanctx *chanctx;
3012 int err, num_chanctx, changed = 0;
3013
3014 sdata_assert_lock(sdata);
59af6928 3015 lockdep_assert_held(&local->mtx);
37fa2bdd
MK		 3016
3017 if (!list_empty(&local->roc_list) || local->scanning)
3018 return -EBUSY;
3019
3020 if (sdata->wdev.cac_started)
3021 return -EBUSY;
3022
3023 if (cfg80211_chandef_identical(&params->chandef,
3024 &sdata->vif.bss_conf.chandef))
3025 return -EINVAL;
3026
2b32713d
MK		 3027 mutex_lock(&local->chanctx_mtx);
3028 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3029 lockdep_is_held(&local->chanctx_mtx));
3030 if (!conf) {
3031 mutex_unlock(&local->chanctx_mtx);
37fa2bdd
MK		 3032 return -EBUSY;
3033 }
3034
3035 /* don't handle for multi-VIF cases */
2b32713d 3036 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
c0166da9 3037 if (ieee80211_chanctx_refcount(local, chanctx) > 1) {
2b32713d 3038 mutex_unlock(&local->chanctx_mtx);
37fa2bdd
MK		 3039 return -EBUSY;
3040 }
3041 num_chanctx = 0;
3042 list_for_each_entry_rcu(chanctx, &local->chanctx_list, list)
3043 num_chanctx++;
2b32713d 3044 mutex_unlock(&local->chanctx_mtx);
37fa2bdd
MK		 3045
3046 if (num_chanctx > 1)
3047 return -EBUSY;
3048
3049 /* don't allow another channel switch if one is already active. */
3050 if (sdata->vif.csa_active)
3051 return -EBUSY;
3052
3053 err = ieee80211_set_csa_beacon(sdata, params, &changed);
3054 if (err)
3055 return err;
3056
73da7d5b 3057 sdata->csa_radar_required = params->radar_required;
33787fc4 3058 sdata->csa_chandef = params->chandef;
59af6928 3059 sdata->csa_block_tx = params->block_tx;
73da7d5b
SW		 3060 sdata->vif.csa_active = true;
3061
59af6928
MK		 3062 if (sdata->csa_block_tx)
3063 ieee80211_stop_queues_by_reason(&local->hw,
3064 IEEE80211_MAX_QUEUE_MAP,
cca07b00
LC		 3065 IEEE80211_QUEUE_STOP_REASON_CSA,
3066 false);
59af6928 3067
66e01cf9
LC		 3068 if (changed) {
3069 ieee80211_bss_info_change_notify(sdata, changed);
3070 drv_channel_switch_beacon(sdata, &params->chandef);
3071 } else {
3072 /* if the beacon didn't change, we can finalize immediately */
3073 ieee80211_csa_finalize(sdata);
3074 }
73da7d5b
SW		 3075
3076 return 0;
3077}
3078
59af6928
MK		 3079int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3080 struct cfg80211_csa_settings *params)
3081{
3082 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3083 struct ieee80211_local *local = sdata->local;
3084 int err;
3085
3086 mutex_lock(&local->mtx);
3087 err = __ieee80211_channel_switch(wiphy, dev, params);
3088 mutex_unlock(&local->mtx);
3089
3090 return err;
3091}
3092
71bbc994 3093static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3094 struct cfg80211_mgmt_tx_params *params,
3095 u64 *cookie)
026331c4 3096{
71bbc994 3097 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d
JB		 3098 struct ieee80211_local *local = sdata->local;
3099 struct sk_buff *skb;
3100 struct sta_info *sta;
b176e629 3101 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3102 bool need_offchan = false;
e247bd90 3103 u32 flags;
2eb278e0 3104 int ret;
387910cc 3105 u8 *data;
f7ca38df 3106
b176e629 3107 if (params->dont_wait_for_ack)
e247bd90
JB		 3108 flags = IEEE80211_TX_CTL_NO_ACK;
3109 else
3110 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3111 IEEE80211_TX_CTL_REQ_TX_STATUS;
3112
b176e629 3113 if (params->no_cck)
aad14ceb
RM		 3114 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3115
9d38d85d
JB		 3116 switch (sdata->vif.type) {
3117 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3118 if (!sdata->vif.bss_conf.ibss_joined)
3119 need_offchan = true;
3120 /* fall through */
3121#ifdef CONFIG_MAC80211_MESH
3122 case NL80211_IFTYPE_MESH_POINT:
3123 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3124 !sdata->u.mesh.mesh_id_len)
3125 need_offchan = true;
3126 /* fall through */
3127#endif
663fcafd
JB		 3128 case NL80211_IFTYPE_AP:
3129 case NL80211_IFTYPE_AP_VLAN:
3130 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3131 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3132 !ieee80211_vif_is_mesh(&sdata->vif) &&
3133 !rcu_access_pointer(sdata->bss->beacon))
3134 need_offchan = true;
663fcafd 3135 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3136 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3137 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3138 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3139 break;
3140 rcu_read_lock();
3141 sta = sta_info_get(sdata, mgmt->da);
3142 rcu_read_unlock();
3143 if (!sta)
3144 return -ENOLINK;
3145 break;
3146 case NL80211_IFTYPE_STATION:
663fcafd 3147 case NL80211_IFTYPE_P2P_CLIENT:
2eb278e0
JB		 3148 if (!sdata->u.mgd.associated)
3149 need_offchan = true;
9d38d85d 3150 break;
f142c6b9
JB		 3151 case NL80211_IFTYPE_P2P_DEVICE:
3152 need_offchan = true;
3153 break;
9d38d85d
JB		 3154 default:
3155 return -EOPNOTSUPP;
3156 }
3157
f7aeb6fb
AQ		 3158 /* configurations requiring offchan cannot work if no channel has been
3159 * specified
3160 */
b176e629 3161 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3162 return -EINVAL;
3163
2eb278e0
JB		 3164 mutex_lock(&local->mtx);
3165
3166 /* Check if the operating channel is the requested channel */
3167 if (!need_offchan) {
55de908a
JB		 3168 struct ieee80211_chanctx_conf *chanctx_conf;
3169
3170 rcu_read_lock();
3171 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3172
f7aeb6fb 3173 if (chanctx_conf) {
b176e629
AO		 3174 need_offchan = params->chan &&
3175 (params->chan !=
3176 chanctx_conf->def.chan);
3177 } else if (!params->chan) {
f7aeb6fb
AQ		 3178 ret = -EINVAL;
3179 rcu_read_unlock();
3180 goto out_unlock;
3181 } else {
2eb278e0 3182 need_offchan = true;
f7aeb6fb 3183 }
55de908a 3184 rcu_read_unlock();
2eb278e0
JB		 3185 }
3186
b176e629 3187 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3188 ret = -EBUSY;
3189 goto out_unlock;
3190 }
3191
b176e629 3192 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3193 if (!skb) {
3194 ret = -ENOMEM;
3195 goto out_unlock;
3196 }
9d38d85d
JB		 3197 skb_reserve(skb, local->hw.extra_tx_headroom);
3198
387910cc
AO		 3199 data = skb_put(skb, params->len);
3200 memcpy(data, params->buf, params->len);
3201
3202 /* Update CSA counters */
3203 if (sdata->vif.csa_active &&
3204 (sdata->vif.type == NL80211_IFTYPE_AP ||
3205 sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3206 params->n_csa_offsets) {
3207 int i;
af296bdb 3208 struct beacon_data *beacon = NULL;
387910cc 3209
af296bdb
MK		 3210 rcu_read_lock();
3211
3212 if (sdata->vif.type == NL80211_IFTYPE_AP)
3213 beacon = rcu_dereference(sdata->u.ap.beacon);
3214 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3215 beacon = rcu_dereference(sdata->u.ibss.presp);
3216 else if (ieee80211_vif_is_mesh(&sdata->vif))
3217 beacon = rcu_dereference(sdata->u.mesh.beacon);
3218
3219 if (beacon)
3220 for (i = 0; i < params->n_csa_offsets; i++)
3221 data[params->csa_offsets[i]] =
3222 beacon->csa_current_counter;
3223
3224 rcu_read_unlock();
387910cc 3225 }
9d38d85d
JB		 3226
3227 IEEE80211_SKB_CB(skb)->flags = flags;
3228
3229 skb->dev = sdata->dev;
9d38d85d 3230
2eb278e0 3231 if (!need_offchan) {
7f9f78ab 3232 *cookie = (unsigned long) skb;
f30221e4 3233 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3234 ret = 0;
3235 goto out_unlock;
f30221e4
JB		 3236 }
3237
6c17b77b
SF		 3238 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3239 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2eb278e0
JB		 3240 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3241 IEEE80211_SKB_CB(skb)->hw_queue =
3242 local->hw.offchannel_tx_hw_queue;
f30221e4 3243
2eb278e0 3244 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3245 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3246 params->wait, cookie, skb,
d339d5ca 3247 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3248 if (ret)
3249 kfree_skb(skb);
3250 out_unlock:
3251 mutex_unlock(&local->mtx);
3252 return ret;
026331c4
JM		 3253}
3254
f30221e4 3255static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3256 struct wireless_dev *wdev,
f30221e4
JB		 3257 u64 cookie)
3258{
71bbc994 3259 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3260
2eb278e0 3261 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3262}
3263
7be5086d 3264static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3265 struct wireless_dev *wdev,
7be5086d
JB		 3266 u16 frame_type, bool reg)
3267{
3268 struct ieee80211_local *local = wiphy_priv(wiphy);
3269
6abe0563 3270 switch (frame_type) {
6abe0563
WH		 3271 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3272 if (reg)
3273 local->probe_req_reg++;
3274 else
3275 local->probe_req_reg--;
7be5086d 3276
35f5149e
FF		 3277 if (!local->open_count)
3278 break;
3279
6abe0563
WH		 3280 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3281 break;
3282 default:
3283 break;
3284 }
7be5086d
JB		 3285}
3286
15d96753
BR		 3287static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3288{
3289 struct ieee80211_local *local = wiphy_priv(wiphy);
3290
3291 if (local->started)
3292 return -EOPNOTSUPP;
3293
3294 return drv_set_antenna(local, tx_ant, rx_ant);
3295}
3296
3297static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3298{
3299 struct ieee80211_local *local = wiphy_priv(wiphy);
3300
3301 return drv_get_antenna(local, tx_ant, rx_ant);
3302}
3303
c68f4b89
JB		 3304static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3305 struct net_device *dev,
3306 struct cfg80211_gtk_rekey_data *data)
3307{
3308 struct ieee80211_local *local = wiphy_priv(wiphy);
3309 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3310
3311 if (!local->ops->set_rekey_data)
3312 return -EOPNOTSUPP;
3313
3314 drv_set_rekey_data(local, sdata, data);
3315
3316 return 0;
3317}
3318
06500736
JB		 3319static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3320 const u8 *peer, u64 *cookie)
3321{
3322 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3323 struct ieee80211_local *local = sdata->local;
3324 struct ieee80211_qos_hdr *nullfunc;
3325 struct sk_buff *skb;
3326 int size = sizeof(*nullfunc);
3327 __le16 fc;
3328 bool qos;
3329 struct ieee80211_tx_info *info;
3330 struct sta_info *sta;
55de908a
JB		 3331 struct ieee80211_chanctx_conf *chanctx_conf;
3332 enum ieee80211_band band;
06500736
JB		 3333
3334 rcu_read_lock();
55de908a
JB		 3335 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3336 if (WARN_ON(!chanctx_conf)) {
3337 rcu_read_unlock();
3338 return -EINVAL;
3339 }
4bf88530 3340 band = chanctx_conf->def.chan->band;
03bb7f42 3341 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3342 if (sta) {
06500736 3343 qos = test_sta_flag(sta, WLAN_STA_WME);
b4487c2d
JB		 3344 } else {
3345 rcu_read_unlock();
06500736 3346 return -ENOLINK;
b4487c2d 3347 }
06500736
JB		 3348
3349 if (qos) {
3350 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3351 IEEE80211_STYPE_QOS_NULLFUNC |
3352 IEEE80211_FCTL_FROMDS);
3353 } else {
3354 size -= 2;
3355 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3356 IEEE80211_STYPE_NULLFUNC |
3357 IEEE80211_FCTL_FROMDS);
3358 }
3359
3360 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a
JB		 3361 if (!skb) {
3362 rcu_read_unlock();
06500736 3363 return -ENOMEM;
55de908a 3364 }
06500736
JB		 3365
3366 skb->dev = dev;
3367
3368 skb_reserve(skb, local->hw.extra_tx_headroom);
3369
3370 nullfunc = (void *) skb_put(skb, size);
3371 nullfunc->frame_control = fc;
3372 nullfunc->duration_id = 0;
3373 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3374 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3375 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3376 nullfunc->seq_ctrl = 0;
3377
3378 info = IEEE80211_SKB_CB(skb);
3379
3380 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3381 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3382
3383 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3384 skb->priority = 7;
3385 if (qos)
3386 nullfunc->qos_ctrl = cpu_to_le16(7);
3387
3388 local_bh_disable();
55de908a 3389 ieee80211_xmit(sdata, skb, band);
06500736 3390 local_bh_enable();
55de908a 3391 rcu_read_unlock();
06500736
JB		 3392
3393 *cookie = (unsigned long) skb;
3394 return 0;
3395}
3396
683b6d3b
JB		 3397static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3398 struct wireless_dev *wdev,
3399 struct cfg80211_chan_def *chandef)
5b7ccaf3 3400{
55de908a 3401 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3402 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3403 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3404 int ret = -ENODATA;
55de908a
JB		 3405
3406 rcu_read_lock();
feda3027
JB		 3407 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3408 if (chanctx_conf) {
3409 *chandef = chanctx_conf->def;
3410 ret = 0;
3411 } else if (local->open_count > 0 &&
3412 local->open_count == local->monitors &&
3413 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3414 if (local->use_chanctx)
3415 *chandef = local->monitor_chandef;
3416 else
675a0b04 3417 *chandef = local->_oper_chandef;
683b6d3b 3418 ret = 0;
55de908a
JB		 3419 }
3420 rcu_read_unlock();
5b7ccaf3 3421
683b6d3b 3422 return ret;
5b7ccaf3
JB		 3423}
3424
6d52563f
JB		 3425#ifdef CONFIG_PM
3426static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3427{
3428 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3429}
3430#endif
3431
32db6b54
KP		 3432static int ieee80211_set_qos_map(struct wiphy *wiphy,
3433 struct net_device *dev,
3434 struct cfg80211_qos_map *qos_map)
3435{
3436 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3437 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3438
3439 if (qos_map) {
3440 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3441 if (!new_qos_map)
3442 return -ENOMEM;
3443 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3444 } else {
3445 /* A NULL qos_map was passed to disable QoS mapping */
3446 new_qos_map = NULL;
3447 }
3448
194ff52d 3449 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3450 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3451 if (old_qos_map)
3452 kfree_rcu(old_qos_map, rcu_head);
3453
3454 return 0;
3455}
3456
3b1700bd
JM		 3457static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3458 struct net_device *dev,
3459 struct cfg80211_chan_def *chandef)
3460{
3461 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3462 int ret;
3463 u32 changed = 0;
3464
3465 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3466 if (ret == 0)
3467 ieee80211_bss_info_change_notify(sdata, changed);
3468
3469 return ret;
3470}
3471
8a47cea7 3472const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3473 .add_virtual_intf = ieee80211_add_iface,
3474 .del_virtual_intf = ieee80211_del_iface,
42613db7 3475 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3476 .start_p2p_device = ieee80211_start_p2p_device,
3477 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3478 .add_key = ieee80211_add_key,
3479 .del_key = ieee80211_del_key,
62da92fb 3480 .get_key = ieee80211_get_key,
e8cbb4cb 3481 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3482 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3483 .start_ap = ieee80211_start_ap,
3484 .change_beacon = ieee80211_change_beacon,
3485 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3486 .add_station = ieee80211_add_station,
3487 .del_station = ieee80211_del_station,
3488 .change_station = ieee80211_change_station,
7bbdd2d9 3489 .get_station = ieee80211_get_station,
c5dd9c2b 3490 .dump_station = ieee80211_dump_station,
1289723e 3491 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3492#ifdef CONFIG_MAC80211_MESH
3493 .add_mpath = ieee80211_add_mpath,
3494 .del_mpath = ieee80211_del_mpath,
3495 .change_mpath = ieee80211_change_mpath,
3496 .get_mpath = ieee80211_get_mpath,
3497 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 3498 .update_mesh_config = ieee80211_update_mesh_config,
3499 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3500 .join_mesh = ieee80211_join_mesh,
3501 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3502#endif
9f1ba906 3503 .change_bss = ieee80211_change_bss,
31888487 3504 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3505 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3506 .suspend = ieee80211_suspend,
3507 .resume = ieee80211_resume,
2a519311 3508 .scan = ieee80211_scan,
79f460ca
LC		 3509 .sched_scan_start = ieee80211_sched_scan_start,
3510 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3511 .auth = ieee80211_auth,
3512 .assoc = ieee80211_assoc,
3513 .deauth = ieee80211_deauth,
3514 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3515 .join_ibss = ieee80211_join_ibss,
3516 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3517 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3518 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3519 .set_tx_power = ieee80211_set_tx_power,
3520 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3521 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3522 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3523 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3524 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3525 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3526 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3527 .remain_on_channel = ieee80211_remain_on_channel,
3528 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3529 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3530 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3531 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3532 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3533 .set_antenna = ieee80211_set_antenna,
3534 .get_antenna = ieee80211_get_antenna,
c68f4b89 3535 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3536 .tdls_oper = ieee80211_tdls_oper,
3537 .tdls_mgmt = ieee80211_tdls_mgmt,
06500736 3538 .probe_client = ieee80211_probe_client,
b53be792 3539 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3540#ifdef CONFIG_PM
3541 .set_wakeup = ieee80211_set_wakeup,
3542#endif
5b7ccaf3 3543 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3544 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3545 .channel_switch = ieee80211_channel_switch,
32db6b54 3546 .set_qos_map = ieee80211_set_qos_map,
3b1700bd 3547 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
f0706e82 3548};
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