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mac80211: Recalc min chandef when station is associated
[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
b2eb0ee6 5 * Copyright 2013-2015 Intel Mobile Communications GmbH
f0706e82
JB		 6 *
7 * This file is GPLv2 as found in COPYING.
8 */
9
e8cbb4cb 10#include <linux/ieee80211.h>
f0706e82
JB		 11#include <linux/nl80211.h>
12#include <linux/rtnetlink.h>
5a0e3ad6 13#include <linux/slab.h>
881d966b 14#include <net/net_namespace.h>
5dfdaf58 15#include <linux/rcupdate.h>
dfe018bf 16#include <linux/if_ether.h>
f0706e82
JB		 17#include <net/cfg80211.h>
18#include "ieee80211_i.h"
24487981 19#include "driver-ops.h"
2c8dccc7 20#include "rate.h"
c5dd9c2b 21#include "mesh.h"
02219b3a 22#include "wme.h"
c5dd9c2b 23
552bff0c
JB		 24static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
25 const char *name,
6bab2e19 26 unsigned char name_assign_type,
84efbb84
JB		 27 enum nl80211_iftype type,
28 u32 *flags,
29 struct vif_params *params)
f0706e82
JB		 30{
31 struct ieee80211_local *local = wiphy_priv(wiphy);
84efbb84 32 struct wireless_dev *wdev;
8cc9a739
MW		 33 struct ieee80211_sub_if_data *sdata;
34 int err;
f0706e82 35
6bab2e19 36 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
f9e10ce4
JB		 37 if (err)
38 return ERR_PTR(err);
8cc9a739 39
f9e10ce4 40 if (type == NL80211_IFTYPE_MONITOR && flags) {
84efbb84 41 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
f9e10ce4
JB		 42 sdata->u.mntr_flags = *flags;
43 }
44
84efbb84 45 return wdev;
f0706e82
JB		 46}
47
84efbb84 48static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
f0706e82 49{
84efbb84 50 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
f0706e82 51
75636525 52 return 0;
f0706e82
JB		 53}
54
e36d56b6
JB		 55static int ieee80211_change_iface(struct wiphy *wiphy,
56 struct net_device *dev,
2ec600d6
LCC		 57 enum nl80211_iftype type, u32 *flags,
58 struct vif_params *params)
42613db7 59{
9607e6b6 60 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 61 int ret;
42613db7 62
05c914fe 63 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 64 if (ret)
65 return ret;
42613db7 66
9bc383de
JB		 67 if (type == NL80211_IFTYPE_AP_VLAN &&
68 params && params->use_4addr == 0)
a9b3cd7f 69 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
9bc383de
JB		 70 else if (type == NL80211_IFTYPE_STATION &&
71 params && params->use_4addr >= 0)
72 sdata->u.mgd.use_4addr = params->use_4addr;
73
85416a4f
CL		 74 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
75 struct ieee80211_local *local = sdata->local;
76
77 if (ieee80211_sdata_running(sdata)) {
31eba5bc
FF		 78 u32 mask = MONITOR_FLAG_COOK_FRAMES |
79 MONITOR_FLAG_ACTIVE;
80
85416a4f 81 /*
31eba5bc
FF		 82 * Prohibit MONITOR_FLAG_COOK_FRAMES and
83 * MONITOR_FLAG_ACTIVE to be changed while the
84 * interface is up.
85416a4f
CL		 85 * Else we would need to add a lot of cruft
86 * to update everything:
87 * cooked_mntrs, monitor and all fif_* counters
88 * reconfigure hardware
89 */
31eba5bc 90 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
85416a4f
CL		 91 return -EBUSY;
92
93 ieee80211_adjust_monitor_flags(sdata, -1);
94 sdata->u.mntr_flags = *flags;
95 ieee80211_adjust_monitor_flags(sdata, 1);
96
97 ieee80211_configure_filter(local);
98 } else {
99 /*
100 * Because the interface is down, ieee80211_do_stop
101 * and ieee80211_do_open take care of "everything"
102 * mentioned in the comment above.
103 */
104 sdata->u.mntr_flags = *flags;
105 }
106 }
f7917af9 107
42613db7
JB		 108 return 0;
109}
110
f142c6b9
JB		 111static int ieee80211_start_p2p_device(struct wiphy *wiphy,
112 struct wireless_dev *wdev)
113{
b6a55015
LC		 114 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
115 int ret;
116
117 mutex_lock(&sdata->local->chanctx_mtx);
118 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
119 mutex_unlock(&sdata->local->chanctx_mtx);
120 if (ret < 0)
121 return ret;
122
f142c6b9
JB		 123 return ieee80211_do_open(wdev, true);
124}
125
126static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
127 struct wireless_dev *wdev)
128{
129 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
130}
131
b53be792
SW		 132static int ieee80211_set_noack_map(struct wiphy *wiphy,
133 struct net_device *dev,
134 u16 noack_map)
135{
136 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
137
138 sdata->noack_map = noack_map;
17c18bf8
JB		 139
140 ieee80211_check_fast_xmit_iface(sdata);
141
b53be792
SW		 142 return 0;
143}
144
e8cbb4cb 145static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 146 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 147 struct key_params *params)
148{
26a58456 149 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2475b1cc 150 struct ieee80211_local *local = sdata->local;
e8cbb4cb 151 struct sta_info *sta = NULL;
2475b1cc 152 const struct ieee80211_cipher_scheme *cs = NULL;
db4d1169 153 struct ieee80211_key *key;
3b96766f 154 int err;
e8cbb4cb 155
26a58456 156 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 157 return -ENETDOWN;
158
97359d12 159 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 160 switch (params->cipher) {
161 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 162 case WLAN_CIPHER_SUITE_TKIP:
97359d12 163 case WLAN_CIPHER_SUITE_WEP104:
2475b1cc 164 if (IS_ERR(local->wep_tx_tfm))
97359d12 165 return -EINVAL;
3cfcf6ac 166 break;
2475b1cc 167 case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db 168 case WLAN_CIPHER_SUITE_CCMP_256:
2475b1cc 169 case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2 170 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
8ade538b
JM		 171 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
172 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2475b1cc 173 case WLAN_CIPHER_SUITE_GCMP:
00b9cfa3 174 case WLAN_CIPHER_SUITE_GCMP_256:
2475b1cc 175 break;
e8cbb4cb 176 default:
2475b1cc 177 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
97359d12 178 break;
e8cbb4cb
JB		 179 }
180
97359d12 181 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
2475b1cc
MS		 182 params->key, params->seq_len, params->seq,
183 cs);
1ac62ba7
BH		 184 if (IS_ERR(key))
185 return PTR_ERR(key);
db4d1169 186
e31b8213
JB		 187 if (pairwise)
188 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
189
2475b1cc 190 mutex_lock(&local->sta_mtx);
3b96766f 191
e8cbb4cb 192 if (mac_addr) {
ff973af7
TP		 193 if (ieee80211_vif_is_mesh(&sdata->vif))
194 sta = sta_info_get(sdata, mac_addr);
195 else
196 sta = sta_info_get_bss(sdata, mac_addr);
1626e0fa
JB		 197 /*
198 * The ASSOC test makes sure the driver is ready to
199 * receive the key. When wpa_supplicant has roamed
200 * using FT, it attempts to set the key before
201 * association has completed, this rejects that attempt
d070f913 202 * so it will set the key again after association.
1626e0fa
JB		 203 *
204 * TODO: accept the key if we have a station entry and
205 * add it to the device after the station.
206 */
207 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
79cf2dfa 208 ieee80211_key_free_unused(key);
3b96766f
JB		 209 err = -ENOENT;
210 goto out_unlock;
db4d1169 211 }
e8cbb4cb
JB		 212 }
213
e548c49e
JB		 214 switch (sdata->vif.type) {
215 case NL80211_IFTYPE_STATION:
216 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
217 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
218 break;
219 case NL80211_IFTYPE_AP:
220 case NL80211_IFTYPE_AP_VLAN:
221 /* Keys without a station are used for TX only */
222 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
223 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
224 break;
225 case NL80211_IFTYPE_ADHOC:
226 /* no MFP (yet) */
227 break;
228 case NL80211_IFTYPE_MESH_POINT:
229#ifdef CONFIG_MAC80211_MESH
230 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
231 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
232 break;
233#endif
234 case NL80211_IFTYPE_WDS:
235 case NL80211_IFTYPE_MONITOR:
236 case NL80211_IFTYPE_P2P_DEVICE:
237 case NL80211_IFTYPE_UNSPECIFIED:
238 case NUM_NL80211_IFTYPES:
239 case NL80211_IFTYPE_P2P_CLIENT:
240 case NL80211_IFTYPE_P2P_GO:
6e0bd6c3 241 case NL80211_IFTYPE_OCB:
e548c49e
JB		 242 /* shouldn't happen */
243 WARN_ON_ONCE(1);
244 break;
245 }
246
2475b1cc
MS		 247 if (sta)
248 sta->cipher_scheme = cs;
249
3ffc2a90 250 err = ieee80211_key_link(key, sdata, sta);
db4d1169 251
3b96766f 252 out_unlock:
2475b1cc 253 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 254
255 return err;
e8cbb4cb
JB		 256}
257
258static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 259 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 260{
5c0c3641
JB		 261 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
262 struct ieee80211_local *local = sdata->local;
e8cbb4cb 263 struct sta_info *sta;
5c0c3641 264 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 265 int ret;
266
5c0c3641
JB		 267 mutex_lock(&local->sta_mtx);
268 mutex_lock(&local->key_mtx);
3b96766f 269
e8cbb4cb 270 if (mac_addr) {
3b96766f
JB		 271 ret = -ENOENT;
272
0e5ded5a 273 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 274 if (!sta)
3b96766f 275 goto out_unlock;
e8cbb4cb 276
5c0c3641 277 if (pairwise)
2475b1cc 278 key = key_mtx_dereference(local, sta->ptk[key_idx]);
5c0c3641 279 else
40b275b6 280 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 281 } else
40b275b6 282 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 283
5c0c3641 284 if (!key) {
3b96766f
JB		 285 ret = -ENOENT;
286 goto out_unlock;
287 }
e8cbb4cb 288
3b8d9c29 289 ieee80211_key_free(key, true);
e8cbb4cb 290
3b96766f
JB		 291 ret = 0;
292 out_unlock:
5c0c3641
JB		 293 mutex_unlock(&local->key_mtx);
294 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 295
296 return ret;
e8cbb4cb
JB		 297}
298
62da92fb 299static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 300 u8 key_idx, bool pairwise, const u8 *mac_addr,
301 void *cookie,
62da92fb
JB		 302 void (*callback)(void *cookie,
303 struct key_params *params))
304{
14db74bc 305 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 306 struct sta_info *sta = NULL;
307 u8 seq[6] = {0};
308 struct key_params params;
e31b8213 309 struct ieee80211_key *key = NULL;
aba83a0b 310 u64 pn64;
62da92fb
JB		 311 u32 iv32;
312 u16 iv16;
313 int err = -ENOENT;
9352c19f 314 struct ieee80211_key_seq kseq = {};
62da92fb 315
14db74bc
JB		 316 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
317
3b96766f
JB		 318 rcu_read_lock();
319
62da92fb 320 if (mac_addr) {
0e5ded5a 321 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 322 if (!sta)
323 goto out;
324
354e159d 325 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
2475b1cc 326 key = rcu_dereference(sta->ptk[key_idx]);
31f1f4ec
MS		 327 else if (!pairwise &&
328 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
a3836e02 329 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 330 } else
a3836e02 331 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 332
333 if (!key)
334 goto out;
335
336 memset(&params, 0, sizeof(params));
337
97359d12 338 params.cipher = key->conf.cipher;
62da92fb 339
97359d12
JB		 340 switch (key->conf.cipher) {
341 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 342 iv32 = key->u.tkip.tx.iv32;
343 iv16 = key->u.tkip.tx.iv16;
62da92fb 344
9352c19f
JB		 345 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
346 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
347 drv_get_key_seq(sdata->local, key, &kseq);
348 iv32 = kseq.tkip.iv32;
349 iv16 = kseq.tkip.iv16;
350 }
62da92fb
JB		 351
352 seq[0] = iv16 & 0xff;
353 seq[1] = (iv16 >> 8) & 0xff;
354 seq[2] = iv32 & 0xff;
355 seq[3] = (iv32 >> 8) & 0xff;
356 seq[4] = (iv32 >> 16) & 0xff;
357 seq[5] = (iv32 >> 24) & 0xff;
358 params.seq = seq;
359 params.seq_len = 6;
360 break;
97359d12 361 case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db 362 case WLAN_CIPHER_SUITE_CCMP_256:
97359d12 363 case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2 364 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
db388a56
JB		 365 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
366 offsetof(typeof(kseq), aes_cmac));
8ade538b
JM		 367 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
368 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
db388a56
JB		 369 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
370 offsetof(typeof(kseq), aes_gmac));
00b9cfa3
JM		 371 case WLAN_CIPHER_SUITE_GCMP:
372 case WLAN_CIPHER_SUITE_GCMP_256:
db388a56
JB		 373 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
374 offsetof(typeof(kseq), gcmp));
375
9352c19f
JB		 376 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
377 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
378 drv_get_key_seq(sdata->local, key, &kseq);
db388a56 379 memcpy(seq, kseq.ccmp.pn, 6);
9352c19f 380 } else {
db388a56 381 pn64 = atomic64_read(&key->conf.tx_pn);
9352c19f
JB		 382 seq[0] = pn64;
383 seq[1] = pn64 >> 8;
384 seq[2] = pn64 >> 16;
385 seq[3] = pn64 >> 24;
386 seq[4] = pn64 >> 32;
387 seq[5] = pn64 >> 40;
388 }
00b9cfa3
JM		 389 params.seq = seq;
390 params.seq_len = 6;
391 break;
a31cf1c6
JB		 392 default:
393 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
394 break;
395 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
396 break;
397 drv_get_key_seq(sdata->local, key, &kseq);
398 params.seq = kseq.hw.seq;
399 params.seq_len = kseq.hw.seq_len;
400 break;
62da92fb
JB		 401 }
402
403 params.key = key->conf.key;
404 params.key_len = key->conf.keylen;
405
406 callback(cookie, &params);
407 err = 0;
408
409 out:
3b96766f 410 rcu_read_unlock();
62da92fb
JB		 411 return err;
412}
413
e8cbb4cb
JB		 414static int ieee80211_config_default_key(struct wiphy *wiphy,
415 struct net_device *dev,
dbd2fd65
JB		 416 u8 key_idx, bool uni,
417 bool multi)
e8cbb4cb 418{
ad0e2b5a 419 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 420
f7e0104c 421 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 422
423 return 0;
424}
425
3cfcf6ac
JM		 426static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
427 struct net_device *dev,
428 u8 key_idx)
429{
66c52421 430 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 431
3cfcf6ac
JM		 432 ieee80211_set_default_mgmt_key(sdata, key_idx);
433
3cfcf6ac
JM		 434 return 0;
435}
436
6b62bf32
TP		 437void sta_set_rate_info_tx(struct sta_info *sta,
438 const struct ieee80211_tx_rate *rate,
439 struct rate_info *rinfo)
440{
441 rinfo->flags = 0;
8bc83c24 442 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 443 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 444 rinfo->mcs = rate->idx;
445 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
446 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
447 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
448 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
449 } else {
450 struct ieee80211_supported_band *sband;
2103dec1
SW		 451 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
452 u16 brate;
453
8bc83c24
JB		 454 sband = sta->local->hw.wiphy->bands[
455 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 456 brate = sband->bitrates[rate->idx].bitrate;
457 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
8bc83c24 458 }
6b62bf32 459 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
b51f3bee
JB		 460 rinfo->bw = RATE_INFO_BW_40;
461 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
462 rinfo->bw = RATE_INFO_BW_80;
463 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
464 rinfo->bw = RATE_INFO_BW_160;
465 else
466 rinfo->bw = RATE_INFO_BW_20;
6b62bf32
TP		 467 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
468 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 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 677 BSS_CHANGED_SSID |
4bcc56bb
JB		 678 BSS_CHANGED_P2P_PS |
679 BSS_CHANGED_TXPOWER;
8860020e 680 int err;
14db74bc 681
7ca133bc 682 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 683 if (old)
684 return -EALREADY;
685
f6993174
EP		 686 switch (params->smps_mode) {
687 case NL80211_SMPS_OFF:
688 sdata->smps_mode = IEEE80211_SMPS_OFF;
689 break;
690 case NL80211_SMPS_STATIC:
691 sdata->smps_mode = IEEE80211_SMPS_STATIC;
692 break;
693 case NL80211_SMPS_DYNAMIC:
694 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
695 break;
696 default:
697 return -EINVAL;
698 }
04ecd257
JB		 699 sdata->needed_rx_chains = sdata->local->rx_chains;
700
34a3740d 701 mutex_lock(&local->mtx);
4bf88530 702 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 703 IEEE80211_CHANCTX_SHARED);
4e141dad
MK		 704 if (!err)
705 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
34a3740d 706 mutex_unlock(&local->mtx);
aa430da4
JB		 707 if (err)
708 return err;
709
665c93a9
JB		 710 /*
711 * Apply control port protocol, this allows us to
712 * not encrypt dynamic WEP control frames.
713 */
714 sdata->control_port_protocol = params->crypto.control_port_ethertype;
715 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
2475b1cc
MS		 716 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
717 &params->crypto,
718 sdata->vif.type);
719
665c93a9
JB		 720 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
721 vlan->control_port_protocol =
722 params->crypto.control_port_ethertype;
723 vlan->control_port_no_encrypt =
724 params->crypto.control_port_no_encrypt;
2475b1cc
MS		 725 vlan->encrypt_headroom =
726 ieee80211_cs_headroom(sdata->local,
727 &params->crypto,
728 vlan->vif.type);
665c93a9
JB		 729 }
730
8860020e
JB		 731 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
732 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 733 sdata->vif.bss_conf.enable_beacon = true;
8860020e
JB		 734
735 sdata->vif.bss_conf.ssid_len = params->ssid_len;
736 if (params->ssid_len)
737 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
738 params->ssid_len);
739 sdata->vif.bss_conf.hidden_ssid =
740 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
741
67baf663
JD		 742 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
743 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
744 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
745 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
746 if (params->p2p_opp_ps)
747 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
748 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 749
af296bdb 750 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
0297ea17
EG		 751 if (err < 0) {
752 ieee80211_vif_release_channel(sdata);
8860020e 753 return err;
0297ea17 754 }
8860020e
JB		 755 changed |= err;
756
1041638f
JB		 757 err = drv_start_ap(sdata->local, sdata);
758 if (err) {
7ca133bc
SW		 759 old = sdata_dereference(sdata->u.ap.beacon, sdata);
760
1041638f
JB		 761 if (old)
762 kfree_rcu(old, rcu_head);
763 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
0297ea17 764 ieee80211_vif_release_channel(sdata);
1041638f
JB		 765 return err;
766 }
767
057d5f4b 768 ieee80211_recalc_dtim(local, sdata);
8860020e
JB		 769 ieee80211_bss_info_change_notify(sdata, changed);
770
3edaf3e6
JB		 771 netif_carrier_on(dev);
772 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
773 netif_carrier_on(vlan->dev);
774
665c93a9 775 return 0;
5dfdaf58
JB		 776}
777
8860020e
JB		 778static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
779 struct cfg80211_beacon_data *params)
5dfdaf58 780{
14db74bc 781 struct ieee80211_sub_if_data *sdata;
5dfdaf58 782 struct beacon_data *old;
8860020e 783 int err;
5dfdaf58 784
14db74bc 785 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
dbd72850 786 sdata_assert_lock(sdata);
14db74bc 787
73da7d5b
SW		 788 /* don't allow changing the beacon while CSA is in place - offset
789 * of channel switch counter may change
790 */
791 if (sdata->vif.csa_active)
792 return -EBUSY;
793
7ca133bc 794 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 795 if (!old)
796 return -ENOENT;
797
af296bdb 798 err = ieee80211_assign_beacon(sdata, params, NULL);
8860020e
JB		 799 if (err < 0)
800 return err;
801 ieee80211_bss_info_change_notify(sdata, err);
802 return 0;
5dfdaf58
JB		 803}
804
8860020e 805static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 806{
7b20b8e8
JB		 807 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
808 struct ieee80211_sub_if_data *vlan;
809 struct ieee80211_local *local = sdata->local;
810 struct beacon_data *old_beacon;
811 struct probe_resp *old_probe_resp;
d2859df5 812 struct cfg80211_chan_def chandef;
14db74bc 813
dbd72850
MK		 814 sdata_assert_lock(sdata);
815
7ca133bc 816 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 817 if (!old_beacon)
5dfdaf58 818 return -ENOENT;
7ca133bc 819 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 820
73da7d5b 821 /* abort any running channel switch */
59af6928 822 mutex_lock(&local->mtx);
73da7d5b 823 sdata->vif.csa_active = false;
a46992b4
LC		 824 if (sdata->csa_block_tx) {
825 ieee80211_wake_vif_queues(local, sdata,
826 IEEE80211_QUEUE_STOP_REASON_CSA);
827 sdata->csa_block_tx = false;
828 }
829
59af6928
MK		 830 mutex_unlock(&local->mtx);
831
1f3b8a2b
SW		 832 kfree(sdata->u.ap.next_beacon);
833 sdata->u.ap.next_beacon = NULL;
834
7b20b8e8 835 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 836 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
837 netif_carrier_off(vlan->dev);
838 netif_carrier_off(dev);
839
7b20b8e8 840 /* remove beacon and probe response */
a9b3cd7f 841 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 842 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
843 kfree_rcu(old_beacon, rcu_head);
844 if (old_probe_resp)
845 kfree_rcu(old_probe_resp, rcu_head);
8ffcc704 846 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
8860020e 847
e716251d 848 __sta_info_flush(sdata, true);
7907c7d3 849 ieee80211_free_keys(sdata, true);
75de9113 850
d6a83228 851 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 852 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 853 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 854 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 855
a6b368f6 856 if (sdata->wdev.cac_started) {
d2859df5 857 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 858 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 859 cfg80211_cac_event(sdata->dev, &chandef,
860 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 861 GFP_KERNEL);
862 }
863
1041638f
JB		 864 drv_stop_ap(sdata->local, sdata);
865
7b20b8e8
JB		 866 /* free all potentially still buffered bcast frames */
867 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
868 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
869
34a3740d 870 mutex_lock(&local->mtx);
4e141dad 871 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a 872 ieee80211_vif_release_channel(sdata);
34a3740d 873 mutex_unlock(&local->mtx);
55de908a 874
2d0ddec5 875 return 0;
5dfdaf58
JB		 876}
877
4fd6931e
JB		 878/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
879struct iapp_layer2_update {
880 u8 da[ETH_ALEN]; /* broadcast */
881 u8 sa[ETH_ALEN]; /* STA addr */
882 __be16 len; /* 6 */
883 u8 dsap; /* 0 */
884 u8 ssap; /* 0 */
885 u8 control;
886 u8 xid_info[3];
bc10502d 887} __packed;
4fd6931e
JB		 888
889static void ieee80211_send_layer2_update(struct sta_info *sta)
890{
891 struct iapp_layer2_update *msg;
892 struct sk_buff *skb;
893
894 /* Send Level 2 Update Frame to update forwarding tables in layer 2
895 * bridge devices */
896
897 skb = dev_alloc_skb(sizeof(*msg));
898 if (!skb)
899 return;
900 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
901
902 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
903 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
904
e83e6541 905 eth_broadcast_addr(msg->da);
17741cdc 906 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 907 msg->len = htons(6);
908 msg->dsap = 0;
909 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
910 msg->control = 0xaf; /* XID response lsb.1111F101.
911 * F=0 (no poll command; unsolicited frame) */
912 msg->xid_info[0] = 0x81; /* XID format identifier */
913 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
914 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
915
d0709a65
JB		 916 skb->dev = sta->sdata->dev;
917 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 918 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 919 netif_rx_ni(skb);
4fd6931e
JB		 920}
921
d582cffb
JB		 922static int sta_apply_auth_flags(struct ieee80211_local *local,
923 struct sta_info *sta,
924 u32 mask, u32 set)
925{
926 int ret;
927
928 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
929 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
930 !test_sta_flag(sta, WLAN_STA_AUTH)) {
931 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
932 if (ret)
933 return ret;
934 }
935
936 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
937 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
938 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
c23e31cf
MP		 939 /*
940 * When peer becomes associated, init rate control as
941 * well. Some drivers require rate control initialized
942 * before drv_sta_state() is called.
943 */
44674d9c 944 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
c23e31cf
MP		 945 rate_control_rate_init(sta);
946
d582cffb
JB		 947 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
948 if (ret)
949 return ret;
950 }
951
952 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
953 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
954 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
955 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
956 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
957 else
958 ret = 0;
959 if (ret)
960 return ret;
961 }
962
963 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
964 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
965 test_sta_flag(sta, WLAN_STA_ASSOC)) {
966 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
967 if (ret)
968 return ret;
969 }
970
971 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
972 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
973 test_sta_flag(sta, WLAN_STA_AUTH)) {
974 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
975 if (ret)
976 return ret;
977 }
978
979 return 0;
980}
981
13657702
JB		 982static void sta_apply_mesh_params(struct ieee80211_local *local,
983 struct sta_info *sta,
984 struct station_parameters *params)
985{
986#ifdef CONFIG_MAC80211_MESH
987 struct ieee80211_sub_if_data *sdata = sta->sdata;
988 u32 changed = 0;
989
990 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
991 switch (params->plink_state) {
992 case NL80211_PLINK_ESTAB:
993 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
994 changed = mesh_plink_inc_estab_count(sdata);
995 sta->mesh->plink_state = params->plink_state;
996
997 ieee80211_mps_sta_status_update(sta);
998 changed |= ieee80211_mps_set_sta_local_pm(sta,
999 sdata->u.mesh.mshcfg.power_mode);
1000 break;
1001 case NL80211_PLINK_LISTEN:
1002 case NL80211_PLINK_BLOCKED:
1003 case NL80211_PLINK_OPN_SNT:
1004 case NL80211_PLINK_OPN_RCVD:
1005 case NL80211_PLINK_CNF_RCVD:
1006 case NL80211_PLINK_HOLDING:
1007 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1008 changed = mesh_plink_dec_estab_count(sdata);
1009 sta->mesh->plink_state = params->plink_state;
1010
1011 ieee80211_mps_sta_status_update(sta);
1012 changed |= ieee80211_mps_set_sta_local_pm(sta,
1013 NL80211_MESH_POWER_UNKNOWN);
1014 break;
1015 default:
1016 /* nothing */
1017 break;
1018 }
1019 }
1020
1021 switch (params->plink_action) {
1022 case NL80211_PLINK_ACTION_NO_ACTION:
1023 /* nothing */
1024 break;
1025 case NL80211_PLINK_ACTION_OPEN:
1026 changed |= mesh_plink_open(sta);
1027 break;
1028 case NL80211_PLINK_ACTION_BLOCK:
1029 changed |= mesh_plink_block(sta);
1030 break;
1031 }
1032
1033 if (params->local_pm)
1034 changed |= ieee80211_mps_set_sta_local_pm(sta,
1035 params->local_pm);
1036
1037 ieee80211_mbss_info_change_notify(sdata, changed);
1038#endif
1039}
1040
d9a7ddb0
JB		 1041static int sta_apply_parameters(struct ieee80211_local *local,
1042 struct sta_info *sta,
1043 struct station_parameters *params)
4fd6931e 1044{
d9a7ddb0 1045 int ret = 0;
8318d78a 1046 struct ieee80211_supported_band *sband;
d0709a65 1047 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 1048 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1049 u32 mask, set;
4fd6931e 1050
55de908a 1051 sband = local->hw.wiphy->bands[band];
ae5eb026 1052
eccb8e8f
JB		 1053 mask = params->sta_flags_mask;
1054 set = params->sta_flags_set;
73651ee6 1055
d582cffb
JB		 1056 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1057 /*
1058 * In mesh mode, ASSOCIATED isn't part of the nl80211
1059 * API but must follow AUTHENTICATED for driver state.
1060 */
1061 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1062 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1063 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1064 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1065 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1066 /*
1067 * TDLS -- everything follows authorized, but
1068 * only becoming authorized is possible, not
1069 * going back
1070 */
1071 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1072 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1073 BIT(NL80211_STA_FLAG_ASSOCIATED);
1074 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1075 BIT(NL80211_STA_FLAG_ASSOCIATED);
1076 }
eccb8e8f 1077 }
4fd6931e 1078
2c44be81
JB		 1079 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1080 local->hw.queues >= IEEE80211_NUM_ACS)
1081 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1082
44674d9c
AB		 1083 /* auth flags will be set later for TDLS,
1084 * and for unassociated stations that move to assocaited */
1085 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1086 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1087 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
68885a54
AN		 1088 ret = sta_apply_auth_flags(local, sta, mask, set);
1089 if (ret)
1090 return ret;
1091 }
d9a7ddb0 1092
eccb8e8f 1093 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1094 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1095 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1096 else
1097 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1098 }
4fd6931e 1099
eccb8e8f 1100 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
93f0490e 1101 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
eccb8e8f 1102 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1103 set_sta_flag(sta, WLAN_STA_MFP);
1104 else
1105 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1106 }
b39c48fa 1107
07ba55d7 1108 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1109 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1110 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1111 else
1112 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1113 }
4fd6931e 1114
9041c1fa
AN		 1115 /* mark TDLS channel switch support, if the AP allows it */
1116 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1117 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1118 params->ext_capab_len >= 4 &&
1119 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1120 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1121
b98fb44f 1122 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
82c0cc90 1123 !sdata->u.mgd.tdls_wider_bw_prohibited &&
b98fb44f
AN		 1124 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1125 params->ext_capab_len >= 8 &&
1126 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1127 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1128
3b9ce80c
JB		 1129 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1130 sta->sta.uapsd_queues = params->uapsd_queues;
1131 sta->sta.max_sp = params->max_sp;
1132 }
9533b4ac 1133
51b50fbe
JB		 1134 /*
1135 * cfg80211 validates this (1-2007) and allows setting the AID
1136 * only when creating a new station entry
1137 */
1138 if (params->aid)
1139 sta->sta.aid = params->aid;
1140
73651ee6 1141 /*
ba23d206
JB		 1142 * Some of the following updates would be racy if called on an
1143 * existing station, via ieee80211_change_station(). However,
1144 * all such changes are rejected by cfg80211 except for updates
1145 * changing the supported rates on an existing but not yet used
1146 * TDLS peer.
73651ee6
JB		 1147 */
1148
4fd6931e
JB		 1149 if (params->listen_interval >= 0)
1150 sta->listen_interval = params->listen_interval;
1151
1152 if (params->supported_rates) {
2103dec1
SW		 1153 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1154 sband, params->supported_rates,
1155 params->supported_rates_len,
1156 &sta->sta.supp_rates[band]);
4fd6931e 1157 }
c5dd9c2b 1158
d9fe60de 1159 if (params->ht_capa)
ef96a842 1160 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1161 params->ht_capa, sta);
36aedc90 1162
f461be3e
MP		 1163 if (params->vht_capa)
1164 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1165 params->vht_capa, sta);
f461be3e 1166
b1bce14a 1167 if (params->opmode_notif_used) {
b1bce14a
MK		 1168 /* returned value is only needed for rc update, but the
1169 * rc isn't initialized here yet, so ignore it
1170 */
1171 __ieee80211_vht_handle_opmode(sdata, sta,
cf1e05c6 1172 params->opmode_notif, band);
b1bce14a
MK		 1173 }
1174
13657702
JB		 1175 if (ieee80211_vif_is_mesh(&sdata->vif))
1176 sta_apply_mesh_params(local, sta, params);
d9a7ddb0 1177
68885a54 1178 /* set the STA state after all sta info from usermode has been set */
44674d9c
AB		 1179 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1180 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
68885a54
AN		 1181 ret = sta_apply_auth_flags(local, sta, mask, set);
1182 if (ret)
1183 return ret;
1184 }
1185
d9a7ddb0 1186 return 0;
4fd6931e
JB		 1187}
1188
1189static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1190 const u8 *mac,
1191 struct station_parameters *params)
4fd6931e 1192{
14db74bc 1193 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1194 struct sta_info *sta;
1195 struct ieee80211_sub_if_data *sdata;
73651ee6 1196 int err;
b8d476c8 1197 int layer2_update;
4fd6931e 1198
4fd6931e
JB		 1199 if (params->vlan) {
1200 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1201
05c914fe
JB		 1202 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1203 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1204 return -EINVAL;
1205 } else
1206 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1207
b203ca39 1208 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1209 return -EINVAL;
1210
1211 if (is_multicast_ether_addr(mac))
1212 return -EINVAL;
1213
1214 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1215 if (!sta)
1216 return -ENOMEM;
4fd6931e 1217
44674d9c
AB		 1218 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1219 sta->sta.tdls = true;
4fd6931e 1220
d9a7ddb0
JB		 1221 err = sta_apply_parameters(local, sta, params);
1222 if (err) {
1223 sta_info_free(local, sta);
1224 return err;
1225 }
4fd6931e 1226
d64cf63e 1227 /*
44674d9c
AB		 1228 * for TDLS and for unassociated station, rate control should be
1229 * initialized only when rates are known and station is marked
1230 * authorized/associated
d64cf63e 1231 */
44674d9c
AB		 1232 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1233 test_sta_flag(sta, WLAN_STA_ASSOC))
d64cf63e 1234 rate_control_rate_init(sta);
4fd6931e 1235
b8d476c8
JM		 1236 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1237 sdata->vif.type == NL80211_IFTYPE_AP;
1238
34e89507 1239 err = sta_info_insert_rcu(sta);
73651ee6 1240 if (err) {
73651ee6
JB		 1241 rcu_read_unlock();
1242 return err;
1243 }
1244
b8d476c8 1245 if (layer2_update)
73651ee6
JB		 1246 ieee80211_send_layer2_update(sta);
1247
1248 rcu_read_unlock();
1249
4fd6931e
JB		 1250 return 0;
1251}
1252
1253static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
89c771e5 1254 struct station_del_parameters *params)
4fd6931e 1255{
14db74bc 1256 struct ieee80211_sub_if_data *sdata;
4fd6931e 1257
14db74bc
JB		 1258 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1259
89c771e5
JM		 1260 if (params->mac)
1261 return sta_info_destroy_addr_bss(sdata, params->mac);
4fd6931e 1262
b998e8bb 1263 sta_info_flush(sdata);
4fd6931e
JB		 1264 return 0;
1265}
1266
1267static int ieee80211_change_station(struct wiphy *wiphy,
3b3a0162 1268 struct net_device *dev, const u8 *mac,
4fd6931e
JB		 1269 struct station_parameters *params)
1270{
abe60632 1271 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1272 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1273 struct sta_info *sta;
1274 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1275 enum cfg80211_station_type statype;
35b88623 1276 int err;
4fd6931e 1277
87be1e1e 1278 mutex_lock(&local->sta_mtx);
98dd6a57 1279
0e5ded5a 1280 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1281 if (!sta) {
77ee7c89
JB		 1282 err = -ENOENT;
1283 goto out_err;
98dd6a57 1284 }
4fd6931e 1285
77ee7c89
JB		 1286 switch (sdata->vif.type) {
1287 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1288 if (sdata->u.mesh.user_mpm)
eef941e6 1289 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1290 else
eef941e6 1291 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1292 break;
1293 case NL80211_IFTYPE_ADHOC:
1294 statype = CFG80211_STA_IBSS;
1295 break;
1296 case NL80211_IFTYPE_STATION:
1297 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1298 statype = CFG80211_STA_AP_STA;
1299 break;
1300 }
1301 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1302 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1303 else
1304 statype = CFG80211_STA_TDLS_PEER_SETUP;
1305 break;
1306 case NL80211_IFTYPE_AP:
1307 case NL80211_IFTYPE_AP_VLAN:
44674d9c
AB		 1308 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1309 statype = CFG80211_STA_AP_CLIENT;
1310 else
1311 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
77ee7c89
JB		 1312 break;
1313 default:
1314 err = -EOPNOTSUPP;
1315 goto out_err;
bdd90d5e
JB		 1316 }
1317
77ee7c89
JB		 1318 err = cfg80211_check_station_change(wiphy, params, statype);
1319 if (err)
1320 goto out_err;
1321
d0709a65 1322 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1323 bool prev_4addr = false;
1324 bool new_4addr = false;
1325
4fd6931e
JB		 1326 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1327
9bc383de 1328 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1329 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1330 err = -EBUSY;
1331 goto out_err;
3305443c 1332 }
f14543ee 1333
cf778b00 1334 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1335 new_4addr = true;
1336 }
1337
1338 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1339 sta->sdata->u.vlan.sta) {
0c2bef46 1340 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
7e3ed02c 1341 prev_4addr = true;
f14543ee
FF		 1342 }
1343
14db74bc 1344 sta->sdata = vlansdata;
464daaf0 1345 ieee80211_check_fast_xmit(sta);
7e3ed02c
FF		 1346
1347 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1348 prev_4addr != new_4addr) {
1349 if (new_4addr)
1350 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1351 else
1352 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1353 }
1354
4fd6931e
JB		 1355 ieee80211_send_layer2_update(sta);
1356 }
1357
35b88623 1358 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1359 if (err)
1360 goto out_err;
4fd6931e 1361
87be1e1e 1362 mutex_unlock(&local->sta_mtx);
98dd6a57 1363
687da132
EG		 1364 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1365 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1366 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1367 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1368 sta_info_tx_streams(sta) != 1) {
1369 ht_dbg(sta->sdata,
1370 "%pM just authorized and MIMO capable - update SMPS\n",
1371 sta->sta.addr);
1372 ieee80211_send_smps_action(sta->sdata,
1373 sta->sdata->bss->req_smps,
1374 sta->sta.addr,
1375 sta->sdata->vif.bss_conf.bssid);
1376 }
1377
808118cb 1378 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1379 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
4a733ef1 1380 ieee80211_recalc_ps(local);
ab095877
EP		 1381 ieee80211_recalc_ps_vif(sdata);
1382 }
77ee7c89 1383
4fd6931e 1384 return 0;
77ee7c89
JB		 1385out_err:
1386 mutex_unlock(&local->sta_mtx);
1387 return err;
4fd6931e
JB		 1388}
1389
c5dd9c2b
LCC		 1390#ifdef CONFIG_MAC80211_MESH
1391static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1392 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1393{
14db74bc 1394 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1395 struct mesh_path *mpath;
1396 struct sta_info *sta;
c5dd9c2b 1397
14db74bc
JB		 1398 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1399
d0709a65 1400 rcu_read_lock();
abe60632 1401 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1402 if (!sta) {
1403 rcu_read_unlock();
c5dd9c2b 1404 return -ENOENT;
d0709a65 1405 }
c5dd9c2b 1406
ae76eef0
BC		 1407 mpath = mesh_path_add(sdata, dst);
1408 if (IS_ERR(mpath)) {
d0709a65 1409 rcu_read_unlock();
ae76eef0 1410 return PTR_ERR(mpath);
d0709a65 1411 }
c5dd9c2b 1412
c5dd9c2b 1413 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1414
c5dd9c2b
LCC		 1415 rcu_read_unlock();
1416 return 0;
1417}
1418
1419static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1420 const u8 *dst)
c5dd9c2b 1421{
f698d856
JBG		 1422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1423
c5dd9c2b 1424 if (dst)
bf7cd94d 1425 return mesh_path_del(sdata, dst);
c5dd9c2b 1426
ece1a2e7 1427 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1428 return 0;
1429}
1430
3b3a0162
JB		 1431static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1432 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1433{
14db74bc 1434 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1435 struct mesh_path *mpath;
1436 struct sta_info *sta;
1437
14db74bc
JB		 1438 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1439
d0709a65
JB		 1440 rcu_read_lock();
1441
abe60632 1442 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1443 if (!sta) {
1444 rcu_read_unlock();
c5dd9c2b 1445 return -ENOENT;
d0709a65 1446 }
c5dd9c2b 1447
bf7cd94d 1448 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1449 if (!mpath) {
1450 rcu_read_unlock();
c5dd9c2b
LCC		 1451 return -ENOENT;
1452 }
1453
1454 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1455
c5dd9c2b
LCC		 1456 rcu_read_unlock();
1457 return 0;
1458}
1459
1460static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1461 struct mpath_info *pinfo)
1462{
a3836e02
JB		 1463 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1464
1465 if (next_hop_sta)
1466 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b 1467 else
c84a67a2 1468 eth_zero_addr(next_hop);
c5dd9c2b 1469
7ce8c7a3
LAYS		 1470 memset(pinfo, 0, sizeof(*pinfo));
1471
f5ea9120
JB		 1472 pinfo->generation = mesh_paths_generation;
1473
c5dd9c2b 1474 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1475 MPATH_INFO_SN |
c5dd9c2b
LCC		 1476 MPATH_INFO_METRIC |
1477 MPATH_INFO_EXPTIME |
1478 MPATH_INFO_DISCOVERY_TIMEOUT |
1479 MPATH_INFO_DISCOVERY_RETRIES |
1480 MPATH_INFO_FLAGS;
1481
1482 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1483 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1484 pinfo->metric = mpath->metric;
1485 if (time_before(jiffies, mpath->exp_time))
1486 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1487 pinfo->discovery_timeout =
1488 jiffies_to_msecs(mpath->discovery_timeout);
1489 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1490 if (mpath->flags & MESH_PATH_ACTIVE)
1491 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1492 if (mpath->flags & MESH_PATH_RESOLVING)
1493 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1494 if (mpath->flags & MESH_PATH_SN_VALID)
1495 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1496 if (mpath->flags & MESH_PATH_FIXED)
1497 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1498 if (mpath->flags & MESH_PATH_RESOLVED)
1499 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1500}
1501
1502static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1503 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1504
1505{
14db74bc 1506 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1507 struct mesh_path *mpath;
1508
14db74bc
JB		 1509 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1510
c5dd9c2b 1511 rcu_read_lock();
bf7cd94d 1512 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1513 if (!mpath) {
1514 rcu_read_unlock();
1515 return -ENOENT;
1516 }
1517 memcpy(dst, mpath->dst, ETH_ALEN);
1518 mpath_set_pinfo(mpath, next_hop, pinfo);
1519 rcu_read_unlock();
1520 return 0;
1521}
1522
1523static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1524 int idx, u8 *dst, u8 *next_hop,
1525 struct mpath_info *pinfo)
c5dd9c2b 1526{
14db74bc 1527 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1528 struct mesh_path *mpath;
1529
14db74bc
JB		 1530 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1531
c5dd9c2b 1532 rcu_read_lock();
bf7cd94d 1533 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1534 if (!mpath) {
1535 rcu_read_unlock();
1536 return -ENOENT;
1537 }
1538 memcpy(dst, mpath->dst, ETH_ALEN);
1539 mpath_set_pinfo(mpath, next_hop, pinfo);
1540 rcu_read_unlock();
1541 return 0;
1542}
93da9cc1 1543
a2db2ed3
HR		 1544static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1545 struct mpath_info *pinfo)
1546{
1547 memset(pinfo, 0, sizeof(*pinfo));
1548 memcpy(mpp, mpath->mpp, ETH_ALEN);
1549
1550 pinfo->generation = mpp_paths_generation;
1551}
1552
1553static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1554 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1555
1556{
1557 struct ieee80211_sub_if_data *sdata;
1558 struct mesh_path *mpath;
1559
1560 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1561
1562 rcu_read_lock();
1563 mpath = mpp_path_lookup(sdata, dst);
1564 if (!mpath) {
1565 rcu_read_unlock();
1566 return -ENOENT;
1567 }
1568 memcpy(dst, mpath->dst, ETH_ALEN);
1569 mpp_set_pinfo(mpath, mpp, pinfo);
1570 rcu_read_unlock();
1571 return 0;
1572}
1573
1574static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1575 int idx, u8 *dst, u8 *mpp,
1576 struct mpath_info *pinfo)
1577{
1578 struct ieee80211_sub_if_data *sdata;
1579 struct mesh_path *mpath;
1580
1581 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1582
1583 rcu_read_lock();
1584 mpath = mpp_path_lookup_by_idx(sdata, idx);
1585 if (!mpath) {
1586 rcu_read_unlock();
1587 return -ENOENT;
1588 }
1589 memcpy(dst, mpath->dst, ETH_ALEN);
1590 mpp_set_pinfo(mpath, mpp, pinfo);
1591 rcu_read_unlock();
1592 return 0;
1593}
1594
24bdd9f4 1595static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1596 struct net_device *dev,
1597 struct mesh_config *conf)
1598{
1599 struct ieee80211_sub_if_data *sdata;
1600 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1601
93da9cc1 1602 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1603 return 0;
1604}
1605
1606static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1607{
1608 return (mask >> (parm-1)) & 0x1;
1609}
1610
c80d545d
JC		 1611static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1612 const struct mesh_setup *setup)
1613{
1614 u8 *new_ie;
1615 const u8 *old_ie;
4bb62344
CYY		 1616 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1617 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1618
581a8b0f 1619 /* allocate information elements */
c80d545d 1620 new_ie = NULL;
581a8b0f 1621 old_ie = ifmsh->ie;
c80d545d 1622
581a8b0f
JC		 1623 if (setup->ie_len) {
1624 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1625 GFP_KERNEL);
1626 if (!new_ie)
1627 return -ENOMEM;
1628 }
581a8b0f
JC		 1629 ifmsh->ie_len = setup->ie_len;
1630 ifmsh->ie = new_ie;
1631 kfree(old_ie);
c80d545d
JC		 1632
1633 /* now copy the rest of the setup parameters */
1634 ifmsh->mesh_id_len = setup->mesh_id_len;
1635 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1636 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1637 ifmsh->mesh_pp_id = setup->path_sel_proto;
1638 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1639 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1640 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1641 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1642 if (setup->is_authenticated)
1643 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1644 if (setup->is_secure)
1645 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1646
4bb62344
CYY		 1647 /* mcast rate setting in Mesh Node */
1648 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1649 sizeof(setup->mcast_rate));
ffb3cf30 1650 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1651
9bdbf04d
MP		 1652 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1653 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1654
c80d545d
JC		 1655 return 0;
1656}
1657
24bdd9f4 1658static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1659 struct net_device *dev, u32 mask,
1660 const struct mesh_config *nconf)
93da9cc1 1661{
1662 struct mesh_config *conf;
1663 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1664 struct ieee80211_if_mesh *ifmsh;
1665
93da9cc1 1666 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1667 ifmsh = &sdata->u.mesh;
93da9cc1 1668
93da9cc1 1669 /* Set the config options which we are interested in setting */
1670 conf = &(sdata->u.mesh.mshcfg);
1671 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1672 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1673 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1674 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1675 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1676 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1677 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1678 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1679 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1680 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1681 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1682 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1683 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1684 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1685 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1686 if (ifmsh->user_mpm)
1687 return -EBUSY;
93da9cc1 1688 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1689 }
d299a1f2
JC		 1690 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1691 conf->dot11MeshNbrOffsetMaxNeighbor =
1692 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1693 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1694 conf->dot11MeshHWMPmaxPREQretries =
1695 nconf->dot11MeshHWMPmaxPREQretries;
1696 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1697 conf->path_refresh_time = nconf->path_refresh_time;
1698 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1699 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1700 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1701 conf->dot11MeshHWMPactivePathTimeout =
1702 nconf->dot11MeshHWMPactivePathTimeout;
1703 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1704 conf->dot11MeshHWMPpreqMinInterval =
1705 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1706 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1707 conf->dot11MeshHWMPperrMinInterval =
1708 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1709 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1710 mask))
1711 conf->dot11MeshHWMPnetDiameterTraversalTime =
1712 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1713 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1714 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1715 ieee80211_mesh_root_setup(ifmsh);
1716 }
16dd7267 1717 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1718 /* our current gate announcement implementation rides on root
1719 * announcements, so require this ifmsh to also be a root node
1720 * */
1721 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1722 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1723 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1724 ieee80211_mesh_root_setup(ifmsh);
1725 }
16dd7267
JC		 1726 conf->dot11MeshGateAnnouncementProtocol =
1727 nconf->dot11MeshGateAnnouncementProtocol;
1728 }
a4f606ea 1729 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1730 conf->dot11MeshHWMPRannInterval =
1731 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1732 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1733 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1734 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1735 /* our RSSI threshold implementation is supported only for
1736 * devices that report signal in dBm.
1737 */
30686bf7 1738 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
55335137
AN		 1739 return -ENOTSUPP;
1740 conf->rssi_threshold = nconf->rssi_threshold;
1741 }
70c33eaa
AN		 1742 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1743 conf->ht_opmode = nconf->ht_opmode;
1744 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1745 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1746 }
ac1073a6
CYY		 1747 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1748 conf->dot11MeshHWMPactivePathToRootTimeout =
1749 nconf->dot11MeshHWMPactivePathToRootTimeout;
1750 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1751 conf->dot11MeshHWMProotInterval =
1752 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1753 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1754 conf->dot11MeshHWMPconfirmationInterval =
1755 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1756 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1757 conf->power_mode = nconf->power_mode;
1758 ieee80211_mps_local_status_update(sdata);
1759 }
2b5e1967 1760 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1761 conf->dot11MeshAwakeWindowDuration =
1762 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1763 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1764 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1765 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1766 return 0;
1767}
1768
29cbe68c
JB		 1769static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1770 const struct mesh_config *conf,
1771 const struct mesh_setup *setup)
1772{
1773 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1774 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1775 int err;
29cbe68c 1776
c80d545d
JC		 1777 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1778 err = copy_mesh_setup(ifmsh, setup);
1779 if (err)
1780 return err;
cc1d2806 1781
04ecd257
JB		 1782 /* can mesh use other SMPS modes? */
1783 sdata->smps_mode = IEEE80211_SMPS_OFF;
1784 sdata->needed_rx_chains = sdata->local->rx_chains;
1785
34a3740d 1786 mutex_lock(&sdata->local->mtx);
4bf88530 1787 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1788 IEEE80211_CHANCTX_SHARED);
34a3740d 1789 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1790 if (err)
1791 return err;
1792
2b5e1967 1793 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1794}
1795
1796static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1797{
1798 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1799
1800 ieee80211_stop_mesh(sdata);
34a3740d 1801 mutex_lock(&sdata->local->mtx);
55de908a 1802 ieee80211_vif_release_channel(sdata);
34a3740d 1803 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1804
1805 return 0;
1806}
c5dd9c2b
LCC		 1807#endif
1808
9f1ba906
JM		 1809static int ieee80211_change_bss(struct wiphy *wiphy,
1810 struct net_device *dev,
1811 struct bss_parameters *params)
1812{
55de908a
JB		 1813 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1814 enum ieee80211_band band;
9f1ba906
JM		 1815 u32 changed = 0;
1816
7ca133bc 1817 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1818 return -ENOENT;
1819
1820 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1821
9f1ba906 1822 if (params->use_cts_prot >= 0) {
bda3933a 1823 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1824 changed |= BSS_CHANGED_ERP_CTS_PROT;
1825 }
1826 if (params->use_short_preamble >= 0) {
bda3933a 1827 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1828 params->use_short_preamble;
1829 changed |= BSS_CHANGED_ERP_PREAMBLE;
1830 }
43d35343
FF		 1831
1832 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1833 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1834 sdata->vif.bss_conf.use_short_slot = true;
1835 changed |= BSS_CHANGED_ERP_SLOT;
1836 }
1837
9f1ba906 1838 if (params->use_short_slot_time >= 0) {
bda3933a 1839 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1840 params->use_short_slot_time;
1841 changed |= BSS_CHANGED_ERP_SLOT;
1842 }
1843
90c97a04 1844 if (params->basic_rates) {
2103dec1
SW		 1845 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1846 wiphy->bands[band],
1847 params->basic_rates,
1848 params->basic_rates_len,
1849 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 1850 changed |= BSS_CHANGED_BASIC_RATES;
1851 }
1852
7b7b5e56
FF		 1853 if (params->ap_isolate >= 0) {
1854 if (params->ap_isolate)
1855 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1856 else
1857 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1858 }
1859
80d7e403
HS		 1860 if (params->ht_opmode >= 0) {
1861 sdata->vif.bss_conf.ht_operation_mode =
1862 (u16) params->ht_opmode;
1863 changed |= BSS_CHANGED_HT;
1864 }
1865
339afbf4 1866 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1867 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1868 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1869 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1870 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1871 changed |= BSS_CHANGED_P2P_PS;
1872 }
1873
67baf663
JD		 1874 if (params->p2p_opp_ps > 0) {
1875 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1876 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1877 changed |= BSS_CHANGED_P2P_PS;
1878 } else if (params->p2p_opp_ps == 0) {
1879 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1880 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1881 changed |= BSS_CHANGED_P2P_PS;
1882 }
1883
9f1ba906
JM		 1884 ieee80211_bss_info_change_notify(sdata, changed);
1885
1886 return 0;
1887}
1888
31888487 1889static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1890 struct net_device *dev,
31888487
JM		 1891 struct ieee80211_txq_params *params)
1892{
1893 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1894 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1895 struct ieee80211_tx_queue_params p;
1896
1897 if (!local->ops->conf_tx)
1898 return -EOPNOTSUPP;
1899
54bcbc69
JB		 1900 if (local->hw.queues < IEEE80211_NUM_ACS)
1901 return -EOPNOTSUPP;
1902
31888487
JM		 1903 memset(&p, 0, sizeof(p));
1904 p.aifs = params->aifs;
1905 p.cw_max = params->cwmax;
1906 p.cw_min = params->cwmin;
1907 p.txop = params->txop;
ab13315a
KV		 1908
1909 /*
1910 * Setting tx queue params disables u-apsd because it's only
1911 * called in master mode.
1912 */
1913 p.uapsd = false;
1914
a3304b0a
JB		 1915 sdata->tx_conf[params->ac] = p;
1916 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 1917 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 1918 "failed to set TX queue parameters for AC %d\n",
1919 params->ac);
31888487
JM		 1920 return -EINVAL;
1921 }
1922
7d25745d
JB		 1923 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1924
31888487
JM		 1925 return 0;
1926}
1927
665af4fc 1928#ifdef CONFIG_PM
ff1b6e69
JB		 1929static int ieee80211_suspend(struct wiphy *wiphy,
1930 struct cfg80211_wowlan *wowlan)
665af4fc 1931{
eecc4800 1932 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1933}
1934
1935static int ieee80211_resume(struct wiphy *wiphy)
1936{
1937 return __ieee80211_resume(wiphy_priv(wiphy));
1938}
1939#else
1940#define ieee80211_suspend NULL
1941#define ieee80211_resume NULL
1942#endif
1943
2a519311 1944static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 1945 struct cfg80211_scan_request *req)
1946{
fd014284
JB		 1947 struct ieee80211_sub_if_data *sdata;
1948
1949 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 1950
2ca27bcf
JB		 1951 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1952 case NL80211_IFTYPE_STATION:
1953 case NL80211_IFTYPE_ADHOC:
1954 case NL80211_IFTYPE_MESH_POINT:
1955 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 1956 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 1957 break;
1958 case NL80211_IFTYPE_P2P_GO:
1959 if (sdata->local->ops->hw_scan)
1960 break;
e9d7732e
JB		 1961 /*
1962 * FIXME: implement NoA while scanning in software,
1963 * for now fall through to allow scanning only when
1964 * beaconing hasn't been configured yet
1965 */
2ca27bcf 1966 case NL80211_IFTYPE_AP:
5c95b940
AQ		 1967 /*
1968 * If the scan has been forced (and the driver supports
1969 * forcing), don't care about being beaconing already.
1970 * This will create problems to the attached stations (e.g. all
1971 * the frames sent while scanning on other channel will be
1972 * lost)
1973 */
1974 if (sdata->u.ap.beacon &&
1975 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1976 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 1977 return -EOPNOTSUPP;
1978 break;
1979 default:
1980 return -EOPNOTSUPP;
1981 }
2a519311
JB		 1982
1983 return ieee80211_request_scan(sdata, req);
1984}
1985
91f123f2
VK		 1986static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
1987{
1988 ieee80211_scan_cancel(wiphy_priv(wiphy));
1989}
1990
79f460ca
LC		 1991static int
1992ieee80211_sched_scan_start(struct wiphy *wiphy,
1993 struct net_device *dev,
1994 struct cfg80211_sched_scan_request *req)
1995{
1996 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1997
1998 if (!sdata->local->ops->sched_scan_start)
1999 return -EOPNOTSUPP;
2000
2001 return ieee80211_request_sched_scan_start(sdata, req);
2002}
2003
2004static int
85a9994a 2005ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca 2006{
0d440ea2 2007 struct ieee80211_local *local = wiphy_priv(wiphy);
79f460ca 2008
0d440ea2 2009 if (!local->ops->sched_scan_stop)
79f460ca
LC		 2010 return -EOPNOTSUPP;
2011
0d440ea2 2012 return ieee80211_request_sched_scan_stop(local);
79f460ca
LC		 2013}
2014
636a5d36
JM		 2015static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2016 struct cfg80211_auth_request *req)
2017{
77fdaa12 2018 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2019}
2020
2021static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2022 struct cfg80211_assoc_request *req)
2023{
77fdaa12 2024 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2025}
2026
2027static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2028 struct cfg80211_deauth_request *req)
636a5d36 2029{
63c9c5e7 2030 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2031}
2032
2033static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2034 struct cfg80211_disassoc_request *req)
636a5d36 2035{
63c9c5e7 2036 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2037}
2038
af8cdcd8
JB		 2039static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2040 struct cfg80211_ibss_params *params)
2041{
55de908a 2042 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2043}
2044
2045static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2046{
55de908a 2047 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2048}
2049
239281f8
RL		 2050static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2051 struct ocb_setup *setup)
2052{
2053 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2054}
2055
2056static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2057{
2058 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2059}
2060
391e53e3
AQ		 2061static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2062 int rate[IEEE80211_NUM_BANDS])
2063{
2064 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2065
9887dbf5
CD		 2066 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2067 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 2068
2069 return 0;
2070}
2071
b9a5f8ca
JM		 2072static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2073{
2074 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2075 int err;
b9a5f8ca 2076
f23a4780 2077 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
17c18bf8
JB		 2078 ieee80211_check_fast_xmit_all(local);
2079
f23a4780
AN		 2080 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2081
17c18bf8
JB		 2082 if (err) {
2083 ieee80211_check_fast_xmit_all(local);
f23a4780 2084 return err;
17c18bf8 2085 }
f23a4780
AN		 2086 }
2087
a4bcaf55
LB		 2088 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2089 (changed & WIPHY_PARAM_DYN_ACK)) {
2090 s16 coverage_class;
2091
2092 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2093 wiphy->coverage_class : -1;
2094 err = drv_set_coverage_class(local, coverage_class);
310bc676
LT		 2095
2096 if (err)
2097 return err;
2098 }
2099
b9a5f8ca 2100 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2101 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2102
24487981
JB		 2103 if (err)
2104 return err;
b9a5f8ca
JM		 2105 }
2106
8bc83c24
JB		 2107 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2108 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2109 return -EINVAL;
b9a5f8ca 2110 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2111 }
2112 if (changed & WIPHY_PARAM_RETRY_LONG) {
2113 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2114 return -EINVAL;
b9a5f8ca 2115 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2116 }
b9a5f8ca
JM		 2117 if (changed &
2118 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2119 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2120
2121 return 0;
2122}
2123
7643a2c3 2124static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2125 struct wireless_dev *wdev,
fa61cf70 2126 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2127{
2128 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2129 struct ieee80211_sub_if_data *sdata;
db82d8a9
LB		 2130 enum nl80211_tx_power_setting txp_type = type;
2131 bool update_txp_type = false;
7643a2c3 2132
1ea6f9c0
JB		 2133 if (wdev) {
2134 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2135
2136 switch (type) {
2137 case NL80211_TX_POWER_AUTOMATIC:
2138 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2139 txp_type = NL80211_TX_POWER_LIMITED;
1ea6f9c0
JB		 2140 break;
2141 case NL80211_TX_POWER_LIMITED:
2142 case NL80211_TX_POWER_FIXED:
2143 if (mbm < 0 || (mbm % 100))
2144 return -EOPNOTSUPP;
2145 sdata->user_power_level = MBM_TO_DBM(mbm);
2146 break;
2147 }
2148
db82d8a9
LB		 2149 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2150 update_txp_type = true;
2151 sdata->vif.bss_conf.txpower_type = txp_type;
2152 }
2153
2154 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0
JB		 2155
2156 return 0;
2157 }
55de908a 2158
7643a2c3 2159 switch (type) {
fa61cf70 2160 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2161 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2162 txp_type = NL80211_TX_POWER_LIMITED;
7643a2c3 2163 break;
fa61cf70 2164 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2165 case NL80211_TX_POWER_FIXED:
2166 if (mbm < 0 || (mbm % 100))
2167 return -EOPNOTSUPP;
fa61cf70 2168 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2169 break;
7643a2c3
JB		 2170 }
2171
1ea6f9c0 2172 mutex_lock(&local->iflist_mtx);
db82d8a9 2173 list_for_each_entry(sdata, &local->interfaces, list) {
1ea6f9c0 2174 sdata->user_power_level = local->user_power_level;
db82d8a9
LB		 2175 if (txp_type != sdata->vif.bss_conf.txpower_type)
2176 update_txp_type = true;
2177 sdata->vif.bss_conf.txpower_type = txp_type;
2178 }
1ea6f9c0 2179 list_for_each_entry(sdata, &local->interfaces, list)
db82d8a9 2180 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0 2181 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2182
2183 return 0;
2184}
2185
c8442118
JB		 2186static int ieee80211_get_tx_power(struct wiphy *wiphy,
2187 struct wireless_dev *wdev,
2188 int *dbm)
7643a2c3
JB		 2189{
2190 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2191 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2192
5b3dc42b
FF		 2193 if (local->ops->get_txpower)
2194 return drv_get_txpower(local, sdata, dbm);
2195
1ea6f9c0
JB		 2196 if (!local->use_chanctx)
2197 *dbm = local->hw.conf.power_level;
2198 else
2199 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2200
7643a2c3
JB		 2201 return 0;
2202}
2203
ab737a4f 2204static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2205 const u8 *addr)
ab737a4f
JB		 2206{
2207 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2208
2209 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2210
2211 return 0;
2212}
2213
1f87f7d3
JB		 2214static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2215{
2216 struct ieee80211_local *local = wiphy_priv(wiphy);
2217
2218 drv_rfkill_poll(local);
2219}
2220
aff89a9b 2221#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2222static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2223 struct wireless_dev *wdev,
2224 void *data, int len)
aff89a9b
JB		 2225{
2226 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2227 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2228
2229 if (!local->ops->testmode_cmd)
2230 return -EOPNOTSUPP;
2231
52981cd7
DS		 2232 if (wdev) {
2233 struct ieee80211_sub_if_data *sdata;
2234
2235 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2236 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2237 vif = &sdata->vif;
2238 }
2239
2240 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2241}
71063f0e
WYG		 2242
2243static int ieee80211_testmode_dump(struct wiphy *wiphy,
2244 struct sk_buff *skb,
2245 struct netlink_callback *cb,
2246 void *data, int len)
2247{
2248 struct ieee80211_local *local = wiphy_priv(wiphy);
2249
2250 if (!local->ops->testmode_dump)
2251 return -EOPNOTSUPP;
2252
2253 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2254}
aff89a9b
JB		 2255#endif
2256
687da132
EG		 2257int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2258 enum ieee80211_smps_mode smps_mode)
2259{
2260 struct sta_info *sta;
2261 enum ieee80211_smps_mode old_req;
687da132
EG		 2262
2263 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2264 return -EINVAL;
2265
2266 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2267 return 0;
2268
2269 old_req = sdata->u.ap.req_smps;
2270 sdata->u.ap.req_smps = smps_mode;
2271
2272 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2273 if (old_req == smps_mode ||
2274 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2275 return 0;
2276
2277 /* If no associated stations, there's no need to do anything */
2278 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2279 sdata->smps_mode = smps_mode;
2280 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2281 return 0;
2282 }
2283
2284 ht_dbg(sdata,
6a8b4adb 2285 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
687da132
EG		 2286 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2287
2288 mutex_lock(&sdata->local->sta_mtx);
7d9bb2f0
JB		 2289 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2290 /*
2291 * Only stations associated to our AP and
2292 * associated VLANs
2293 */
2294 if (sta->sdata->bss != &sdata->u.ap)
2295 continue;
687da132 2296
7d9bb2f0
JB		 2297 /* This station doesn't support MIMO - skip it */
2298 if (sta_info_tx_streams(sta) == 1)
2299 continue;
687da132 2300
7d9bb2f0
JB		 2301 /*
2302 * Don't wake up a STA just to send the action frame
2303 * unless we are getting more restrictive.
2304 */
2305 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2306 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2307 smps_mode)) {
2308 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2309 sta->sta.addr);
2310 continue;
2311 }
687da132 2312
7d9bb2f0
JB		 2313 /*
2314 * If the STA is not authorized, wait until it gets
2315 * authorized and the action frame will be sent then.
2316 */
2317 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2318 continue;
687da132 2319
7d9bb2f0
JB		 2320 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2321 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2322 sdata->vif.bss_conf.bssid);
687da132
EG		 2323 }
2324 mutex_unlock(&sdata->local->sta_mtx);
2325
2326 sdata->smps_mode = smps_mode;
2327 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2328
2329 return 0;
2330}
2331
2332int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2333 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2334{
2335 const u8 *ap;
2336 enum ieee80211_smps_mode old_req;
2337 int err;
d51c2ea3
AN		 2338 struct sta_info *sta;
2339 bool tdls_peer_found = false;
0f78231b 2340
8d61ffa5 2341 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2342
687da132
EG		 2343 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2344 return -EINVAL;
2345
0f78231b
JB		 2346 old_req = sdata->u.mgd.req_smps;
2347 sdata->u.mgd.req_smps = smps_mode;
2348
2349 if (old_req == smps_mode &&
2350 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2351 return 0;
2352
2353 /*
2354 * If not associated, or current association is not an HT
04ecd257
JB		 2355 * association, there's no need to do anything, just store
2356 * the new value until we associate.
0f78231b
JB		 2357 */
2358 if (!sdata->u.mgd.associated ||
4bf88530 2359 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2360 return 0;
0f78231b 2361
0c1ad2ca 2362 ap = sdata->u.mgd.associated->bssid;
0f78231b 2363
d51c2ea3
AN		 2364 rcu_read_lock();
2365 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2366 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2367 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2368 continue;
2369
2370 tdls_peer_found = true;
2371 break;
2372 }
2373 rcu_read_unlock();
2374
0f78231b 2375 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
d51c2ea3 2376 if (tdls_peer_found || !sdata->u.mgd.powersave)
0f78231b 2377 smps_mode = IEEE80211_SMPS_OFF;
d51c2ea3
AN		 2378 else
2379 smps_mode = IEEE80211_SMPS_DYNAMIC;
0f78231b
JB		 2380 }
2381
2382 /* send SM PS frame to AP */
2383 err = ieee80211_send_smps_action(sdata, smps_mode,
2384 ap, ap);
2385 if (err)
2386 sdata->u.mgd.req_smps = old_req;
d51c2ea3
AN		 2387 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2388 ieee80211_teardown_tdls_peers(sdata);
0f78231b
JB		 2389
2390 return err;
2391}
2392
bc92afd9
JB		 2393static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2394 bool enabled, int timeout)
2395{
2396 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2397 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2398
2d3db210 2399 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2400 return -EOPNOTSUPP;
2401
30686bf7 2402 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
bc92afd9
JB		 2403 return -EOPNOTSUPP;
2404
2405 if (enabled == sdata->u.mgd.powersave &&
ff616381 2406 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2407 return 0;
2408
2409 sdata->u.mgd.powersave = enabled;
ff616381 2410 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2411
0f78231b 2412 /* no change, but if automatic follow powersave */
ed405be5 2413 sdata_lock(sdata);
687da132 2414 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2415 sdata_unlock(sdata);
0f78231b 2416
30686bf7 2417 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
bc92afd9
JB		 2418 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2419
4a733ef1 2420 ieee80211_recalc_ps(local);
ab095877 2421 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2422
2423 return 0;
2424}
2425
a97c13c3
JO		 2426static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2427 struct net_device *dev,
2428 s32 rssi_thold, u32 rssi_hyst)
2429{
2430 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2431 struct ieee80211_vif *vif = &sdata->vif;
2432 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2433
a97c13c3
JO		 2434 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2435 rssi_hyst == bss_conf->cqm_rssi_hyst)
2436 return 0;
2437
ef9be10c
JB		 2438 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2439 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2440 return -EOPNOTSUPP;
2441
a97c13c3
JO		 2442 bss_conf->cqm_rssi_thold = rssi_thold;
2443 bss_conf->cqm_rssi_hyst = rssi_hyst;
babc305e 2444 sdata->u.mgd.last_cqm_event_signal = 0;
a97c13c3
JO		 2445
2446 /* tell the driver upon association, unless already associated */
ea086359
JB		 2447 if (sdata->u.mgd.associated &&
2448 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2449 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2450
2451 return 0;
2452}
2453
9930380f
JB		 2454static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2455 struct net_device *dev,
2456 const u8 *addr,
2457 const struct cfg80211_bitrate_mask *mask)
2458{
2459 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2460 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2461 int i, ret;
2c7e6bc9 2462
554a43d5
EP		 2463 if (!ieee80211_sdata_running(sdata))
2464 return -ENETDOWN;
2465
30686bf7 2466 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
bdbfd6b5
SM		 2467 ret = drv_set_bitrate_mask(local, sdata, mask);
2468 if (ret)
2469 return ret;
2470 }
9930380f 2471
19468413 2472 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2473 struct ieee80211_supported_band *sband = wiphy->bands[i];
2474 int j;
2475
37eb0b16 2476 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2477 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2478 sizeof(mask->control[i].ht_mcs));
b119ad6e
LB		 2479 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2480 mask->control[i].vht_mcs,
2481 sizeof(mask->control[i].vht_mcs));
2ffbe6d3
FF		 2482
2483 sdata->rc_has_mcs_mask[i] = false;
b119ad6e 2484 sdata->rc_has_vht_mcs_mask[i] = false;
2ffbe6d3
FF		 2485 if (!sband)
2486 continue;
2487
b119ad6e 2488 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2df1b131 2489 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2ffbe6d3 2490 sdata->rc_has_mcs_mask[i] = true;
2df1b131
JB		 2491 break;
2492 }
2493 }
b119ad6e 2494
2df1b131
JB		 2495 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2496 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
b119ad6e 2497 sdata->rc_has_vht_mcs_mask[i] = true;
2ffbe6d3 2498 break;
2df1b131 2499 }
b119ad6e 2500 }
19468413 2501 }
9930380f 2502
37eb0b16 2503 return 0;
9930380f
JB		 2504}
2505
164eb02d
SW		 2506static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2507 struct net_device *dev,
31559f35
JD		 2508 struct cfg80211_chan_def *chandef,
2509 u32 cac_time_ms)
164eb02d
SW		 2510{
2511 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2512 struct ieee80211_local *local = sdata->local;
164eb02d
SW		 2513 int err;
2514
34a3740d
JB		 2515 mutex_lock(&local->mtx);
2516 if (!list_empty(&local->roc_list) || local->scanning) {
2517 err = -EBUSY;
2518 goto out_unlock;
2519 }
164eb02d
SW		 2520
2521 /* whatever, but channel contexts should not complain about that one */
2522 sdata->smps_mode = IEEE80211_SMPS_OFF;
2523 sdata->needed_rx_chains = local->rx_chains;
164eb02d 2524
164eb02d
SW		 2525 err = ieee80211_vif_use_channel(sdata, chandef,
2526 IEEE80211_CHANCTX_SHARED);
164eb02d 2527 if (err)
34a3740d 2528 goto out_unlock;
164eb02d 2529
164eb02d 2530 ieee80211_queue_delayed_work(&sdata->local->hw,
31559f35
JD		 2531 &sdata->dfs_cac_timer_work,
2532 msecs_to_jiffies(cac_time_ms));
164eb02d 2533
34a3740d
JB		 2534 out_unlock:
2535 mutex_unlock(&local->mtx);
2536 return err;
164eb02d
SW		 2537}
2538
73da7d5b
SW		 2539static struct cfg80211_beacon_data *
2540cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2541{
2542 struct cfg80211_beacon_data *new_beacon;
2543 u8 *pos;
2544 int len;
2545
2546 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2547 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2548 beacon->probe_resp_len;
2549
2550 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2551 if (!new_beacon)
2552 return NULL;
2553
2554 pos = (u8 *)(new_beacon + 1);
2555 if (beacon->head_len) {
2556 new_beacon->head_len = beacon->head_len;
2557 new_beacon->head = pos;
2558 memcpy(pos, beacon->head, beacon->head_len);
2559 pos += beacon->head_len;
2560 }
2561 if (beacon->tail_len) {
2562 new_beacon->tail_len = beacon->tail_len;
2563 new_beacon->tail = pos;
2564 memcpy(pos, beacon->tail, beacon->tail_len);
2565 pos += beacon->tail_len;
2566 }
2567 if (beacon->beacon_ies_len) {
2568 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2569 new_beacon->beacon_ies = pos;
2570 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2571 pos += beacon->beacon_ies_len;
2572 }
2573 if (beacon->proberesp_ies_len) {
2574 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2575 new_beacon->proberesp_ies = pos;
2576 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2577 pos += beacon->proberesp_ies_len;
2578 }
2579 if (beacon->assocresp_ies_len) {
2580 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2581 new_beacon->assocresp_ies = pos;
2582 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2583 pos += beacon->assocresp_ies_len;
2584 }
2585 if (beacon->probe_resp_len) {
2586 new_beacon->probe_resp_len = beacon->probe_resp_len;
2587 beacon->probe_resp = pos;
2588 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2589 pos += beacon->probe_resp_len;
2590 }
2591
2592 return new_beacon;
2593}
2594
66e01cf9 2595void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2596{
66e01cf9 2597 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2598
66e01cf9
LC		 2599 ieee80211_queue_work(&sdata->local->hw,
2600 &sdata->csa_finalize_work);
2601}
2602EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 2603
66199506
MK		 2604static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2605 u32 *changed)
66e01cf9 2606{
66199506 2607 int err;
7578d575 2608
cd7760e6
SW		 2609 switch (sdata->vif.type) {
2610 case NL80211_IFTYPE_AP:
af296bdb
MK		 2611 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2612 NULL);
97518af1
MK		 2613 kfree(sdata->u.ap.next_beacon);
2614 sdata->u.ap.next_beacon = NULL;
2615
cd7760e6 2616 if (err < 0)
66199506
MK		 2617 return err;
2618 *changed |= err;
cd7760e6
SW		 2619 break;
2620 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 2621 err = ieee80211_ibss_finish_csa(sdata);
2622 if (err < 0)
66199506
MK		 2623 return err;
2624 *changed |= err;
cd7760e6 2625 break;
b8456a14
CYY		 2626#ifdef CONFIG_MAC80211_MESH
2627 case NL80211_IFTYPE_MESH_POINT:
2628 err = ieee80211_mesh_finish_csa(sdata);
2629 if (err < 0)
66199506
MK		 2630 return err;
2631 *changed |= err;
b8456a14
CYY		 2632 break;
2633#endif
cd7760e6
SW		 2634 default:
2635 WARN_ON(1);
66199506
MK		 2636 return -EINVAL;
2637 }
2638
2639 return 0;
2640}
2641
cf8767dd 2642static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
66199506
MK		 2643{
2644 struct ieee80211_local *local = sdata->local;
2645 u32 changed = 0;
2646 int err;
2647
2648 sdata_assert_lock(sdata);
2649 lockdep_assert_held(&local->mtx);
03078de4 2650 lockdep_assert_held(&local->chanctx_mtx);
66199506 2651
03078de4
MK		 2652 /*
2653 * using reservation isn't immediate as it may be deferred until later
2654 * with multi-vif. once reservation is complete it will re-schedule the
2655 * work with no reserved_chanctx so verify chandef to check if it
2656 * completed successfully
2657 */
66199506 2658
03078de4
MK		 2659 if (sdata->reserved_chanctx) {
2660 /*
2661 * with multi-vif csa driver may call ieee80211_csa_finish()
2662 * many times while waiting for other interfaces to use their
2663 * reservations
2664 */
2665 if (sdata->reserved_ready)
2666 return 0;
2667
408b18ab 2668 return ieee80211_vif_use_reserved_context(sdata);
cd7760e6 2669 }
73da7d5b 2670
03078de4
MK		 2671 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2672 &sdata->csa_chandef))
2673 return -EINVAL;
2674
66199506
MK		 2675 sdata->vif.csa_active = false;
2676
2677 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2678 if (err)
cf8767dd 2679 return err;
faf046e7 2680
66199506 2681 ieee80211_bss_info_change_notify(sdata, changed);
59af6928 2682
a46992b4
LC		 2683 if (sdata->csa_block_tx) {
2684 ieee80211_wake_vif_queues(local, sdata,
2685 IEEE80211_QUEUE_STOP_REASON_CSA);
2686 sdata->csa_block_tx = false;
2687 }
cf8767dd 2688
f1d65583
LC		 2689 err = drv_post_channel_switch(sdata);
2690 if (err)
2691 return err;
2692
2693 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2694
cf8767dd
MK		 2695 return 0;
2696}
2697
2698static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2699{
2700 if (__ieee80211_csa_finalize(sdata)) {
2701 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2702 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2703 GFP_KERNEL);
2704 }
66e01cf9
LC		 2705}
2706
2707void ieee80211_csa_finalize_work(struct work_struct *work)
2708{
2709 struct ieee80211_sub_if_data *sdata =
2710 container_of(work, struct ieee80211_sub_if_data,
2711 csa_finalize_work);
59af6928 2712 struct ieee80211_local *local = sdata->local;
66e01cf9
LC		 2713
2714 sdata_lock(sdata);
59af6928 2715 mutex_lock(&local->mtx);
03078de4 2716 mutex_lock(&local->chanctx_mtx);
59af6928 2717
66e01cf9
LC		 2718 /* AP might have been stopped while waiting for the lock. */
2719 if (!sdata->vif.csa_active)
2720 goto unlock;
2721
2722 if (!ieee80211_sdata_running(sdata))
2723 goto unlock;
2724
2725 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 2726
2727unlock:
03078de4 2728 mutex_unlock(&local->chanctx_mtx);
59af6928 2729 mutex_unlock(&local->mtx);
e487eaeb 2730 sdata_unlock(sdata);
73da7d5b
SW		 2731}
2732
37fa2bdd
MK		 2733static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2734 struct cfg80211_csa_settings *params,
2735 u32 *changed)
73da7d5b 2736{
af296bdb 2737 struct ieee80211_csa_settings csa = {};
37fa2bdd 2738 int err;
73da7d5b 2739
73da7d5b
SW		 2740 switch (sdata->vif.type) {
2741 case NL80211_IFTYPE_AP:
cd7760e6
SW		 2742 sdata->u.ap.next_beacon =
2743 cfg80211_beacon_dup(&params->beacon_after);
2744 if (!sdata->u.ap.next_beacon)
2745 return -ENOMEM;
2746
66e01cf9
LC		 2747 /*
2748 * With a count of 0, we don't have to wait for any
2749 * TBTT before switching, so complete the CSA
2750 * immediately. In theory, with a count == 1 we
2751 * should delay the switch until just before the next
2752 * TBTT, but that would complicate things so we switch
2753 * immediately too. If we would delay the switch
2754 * until the next TBTT, we would have to set the probe
2755 * response here.
2756 *
2757 * TODO: A channel switch with count <= 1 without
2758 * sending a CSA action frame is kind of useless,
2759 * because the clients won't know we're changing
2760 * channels. The action frame must be implemented
2761 * either here or in the userspace.
2762 */
2763 if (params->count <= 1)
2764 break;
2765
0d06d9ba
AO		 2766 if ((params->n_counter_offsets_beacon >
2767 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2768 (params->n_counter_offsets_presp >
2769 IEEE80211_MAX_CSA_COUNTERS_NUM))
2770 return -EINVAL;
9a774c78 2771
af296bdb
MK		 2772 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2773 csa.counter_offsets_presp = params->counter_offsets_presp;
2774 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2775 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2776 csa.count = params->count;
9a774c78 2777
af296bdb 2778 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
cd7760e6
SW		 2779 if (err < 0) {
2780 kfree(sdata->u.ap.next_beacon);
2781 return err;
2782 }
37fa2bdd 2783 *changed |= err;
66e01cf9 2784
cd7760e6
SW		 2785 break;
2786 case NL80211_IFTYPE_ADHOC:
2787 if (!sdata->vif.bss_conf.ibss_joined)
2788 return -EINVAL;
2789
2790 if (params->chandef.width != sdata->u.ibss.chandef.width)
2791 return -EINVAL;
2792
2793 switch (params->chandef.width) {
2794 case NL80211_CHAN_WIDTH_40:
2795 if (cfg80211_get_chandef_type(&params->chandef) !=
2796 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2797 return -EINVAL;
2798 case NL80211_CHAN_WIDTH_5:
2799 case NL80211_CHAN_WIDTH_10:
2800 case NL80211_CHAN_WIDTH_20_NOHT:
2801 case NL80211_CHAN_WIDTH_20:
2802 break;
2803 default:
2804 return -EINVAL;
2805 }
2806
2807 /* changes into another band are not supported */
2808 if (sdata->u.ibss.chandef.chan->band !=
2809 params->chandef.chan->band)
2810 return -EINVAL;
2811
66e01cf9
LC		 2812 /* see comments in the NL80211_IFTYPE_AP block */
2813 if (params->count > 1) {
2814 err = ieee80211_ibss_csa_beacon(sdata, params);
2815 if (err < 0)
2816 return err;
37fa2bdd 2817 *changed |= err;
66e01cf9
LC		 2818 }
2819
2820 ieee80211_send_action_csa(sdata, params);
2821
73da7d5b 2822 break;
c6da674a 2823#ifdef CONFIG_MAC80211_MESH
37fa2bdd
MK		 2824 case NL80211_IFTYPE_MESH_POINT: {
2825 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a 2826
c6da674a
CYY		 2827 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
2828 return -EINVAL;
2829
2830 /* changes into another band are not supported */
2831 if (sdata->vif.bss_conf.chandef.chan->band !=
2832 params->chandef.chan->band)
2833 return -EINVAL;
2834
c782bf8c 2835 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 2836 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 2837 if (!ifmsh->pre_value)
2838 ifmsh->pre_value = 1;
2839 else
2840 ifmsh->pre_value++;
2841 }
0cb4d4dc 2842
66e01cf9
LC		 2843 /* see comments in the NL80211_IFTYPE_AP block */
2844 if (params->count > 1) {
2845 err = ieee80211_mesh_csa_beacon(sdata, params);
2846 if (err < 0) {
2847 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
2848 return err;
2849 }
37fa2bdd 2850 *changed |= err;
3f718fd8 2851 }
66e01cf9
LC		 2852
2853 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
2854 ieee80211_send_action_csa(sdata, params);
2855
c6da674a 2856 break;
37fa2bdd 2857 }
c6da674a 2858#endif
73da7d5b
SW		 2859 default:
2860 return -EOPNOTSUPP;
2861 }
2862
37fa2bdd
MK		 2863 return 0;
2864}
2865
f29f58a9
LC		 2866static int
2867__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2868 struct cfg80211_csa_settings *params)
37fa2bdd
MK		 2869{
2870 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2871 struct ieee80211_local *local = sdata->local;
6d027bcc 2872 struct ieee80211_channel_switch ch_switch;
2b32713d 2873 struct ieee80211_chanctx_conf *conf;
37fa2bdd 2874 struct ieee80211_chanctx *chanctx;
b08cc24e
JB		 2875 u32 changed = 0;
2876 int err;
37fa2bdd
MK		 2877
2878 sdata_assert_lock(sdata);
59af6928 2879 lockdep_assert_held(&local->mtx);
37fa2bdd
MK		 2880
2881 if (!list_empty(&local->roc_list) || local->scanning)
2882 return -EBUSY;
2883
2884 if (sdata->wdev.cac_started)
2885 return -EBUSY;
2886
2887 if (cfg80211_chandef_identical(&params->chandef,
2888 &sdata->vif.bss_conf.chandef))
2889 return -EINVAL;
2890
03078de4
MK		 2891 /* don't allow another channel switch if one is already active. */
2892 if (sdata->vif.csa_active)
2893 return -EBUSY;
2894
2b32713d
MK		 2895 mutex_lock(&local->chanctx_mtx);
2896 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
2897 lockdep_is_held(&local->chanctx_mtx));
2898 if (!conf) {
03078de4
MK		 2899 err = -EBUSY;
2900 goto out;
37fa2bdd
MK		 2901 }
2902
2b32713d 2903 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
03078de4
MK		 2904 if (!chanctx) {
2905 err = -EBUSY;
2906 goto out;
37fa2bdd 2907 }
37fa2bdd 2908
000baa5d
LC		 2909 ch_switch.timestamp = 0;
2910 ch_switch.device_timestamp = 0;
2911 ch_switch.block_tx = params->block_tx;
2912 ch_switch.chandef = params->chandef;
2913 ch_switch.count = params->count;
2914
6d027bcc
LC		 2915 err = drv_pre_channel_switch(sdata, &ch_switch);
2916 if (err)
2917 goto out;
2918
03078de4
MK		 2919 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
2920 chanctx->mode,
2921 params->radar_required);
2922 if (err)
2923 goto out;
37fa2bdd 2924
03078de4
MK		 2925 /* if reservation is invalid then this will fail */
2926 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
2927 if (err) {
2928 ieee80211_vif_unreserve_chanctx(sdata);
2929 goto out;
2930 }
37fa2bdd
MK		 2931
2932 err = ieee80211_set_csa_beacon(sdata, params, &changed);
03078de4
MK		 2933 if (err) {
2934 ieee80211_vif_unreserve_chanctx(sdata);
2935 goto out;
2936 }
37fa2bdd 2937
33787fc4 2938 sdata->csa_chandef = params->chandef;
59af6928 2939 sdata->csa_block_tx = params->block_tx;
73da7d5b
SW		 2940 sdata->vif.csa_active = true;
2941
59af6928 2942 if (sdata->csa_block_tx)
a46992b4
LC		 2943 ieee80211_stop_vif_queues(local, sdata,
2944 IEEE80211_QUEUE_STOP_REASON_CSA);
59af6928 2945
2f457293
LC		 2946 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
2947 params->count);
2948
66e01cf9
LC		 2949 if (changed) {
2950 ieee80211_bss_info_change_notify(sdata, changed);
2951 drv_channel_switch_beacon(sdata, &params->chandef);
2952 } else {
2953 /* if the beacon didn't change, we can finalize immediately */
2954 ieee80211_csa_finalize(sdata);
2955 }
73da7d5b 2956
03078de4
MK		 2957out:
2958 mutex_unlock(&local->chanctx_mtx);
2959 return err;
73da7d5b
SW		 2960}
2961
59af6928
MK		 2962int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2963 struct cfg80211_csa_settings *params)
2964{
2965 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2966 struct ieee80211_local *local = sdata->local;
2967 int err;
2968
2969 mutex_lock(&local->mtx);
2970 err = __ieee80211_channel_switch(wiphy, dev, params);
2971 mutex_unlock(&local->mtx);
2972
2973 return err;
2974}
2975
a2fcfccb
JB		 2976u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
2977{
2978 lockdep_assert_held(&local->mtx);
2979
2980 local->roc_cookie_counter++;
2981
2982 /* wow, you wrapped 64 bits ... more likely a bug */
2983 if (WARN_ON(local->roc_cookie_counter == 0))
2984 local->roc_cookie_counter++;
2985
2986 return local->roc_cookie_counter;
2987}
2988
5ee00dbd
JB		 2989int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
2990 u64 *cookie, gfp_t gfp)
3b79af97
JB		 2991{
2992 unsigned long spin_flags;
2993 struct sk_buff *ack_skb;
2994 int id;
2995
2996 ack_skb = skb_copy(skb, gfp);
2997 if (!ack_skb)
5ee00dbd 2998 return -ENOMEM;
3b79af97
JB		 2999
3000 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3001 id = idr_alloc(&local->ack_status_frames, ack_skb,
3002 1, 0x10000, GFP_ATOMIC);
3003 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3004
3005 if (id < 0) {
3006 kfree_skb(ack_skb);
5ee00dbd 3007 return -ENOMEM;
3b79af97
JB		 3008 }
3009
3010 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3011
3012 *cookie = ieee80211_mgmt_tx_cookie(local);
3013 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3014
5ee00dbd 3015 return 0;
3b79af97
JB		 3016}
3017
7be5086d 3018static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3019 struct wireless_dev *wdev,
7be5086d
JB		 3020 u16 frame_type, bool reg)
3021{
3022 struct ieee80211_local *local = wiphy_priv(wiphy);
1b09b556 3023 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7be5086d 3024
6abe0563 3025 switch (frame_type) {
6abe0563 3026 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
1b09b556 3027 if (reg) {
6abe0563 3028 local->probe_req_reg++;
1b09b556
AO		 3029 sdata->vif.probe_req_reg++;
3030 } else {
3031 if (local->probe_req_reg)
3032 local->probe_req_reg--;
3033
3034 if (sdata->vif.probe_req_reg)
3035 sdata->vif.probe_req_reg--;
3036 }
7be5086d 3037
35f5149e
FF		 3038 if (!local->open_count)
3039 break;
3040
1b09b556
AO		 3041 if (sdata->vif.probe_req_reg == 1)
3042 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3043 FIF_PROBE_REQ);
3044 else if (sdata->vif.probe_req_reg == 0)
3045 drv_config_iface_filter(local, sdata, 0,
3046 FIF_PROBE_REQ);
3047
3048 ieee80211_configure_filter(local);
6abe0563
WH		 3049 break;
3050 default:
3051 break;
3052 }
7be5086d
JB		 3053}
3054
15d96753
BR		 3055static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3056{
3057 struct ieee80211_local *local = wiphy_priv(wiphy);
3058
3059 if (local->started)
3060 return -EOPNOTSUPP;
3061
3062 return drv_set_antenna(local, tx_ant, rx_ant);
3063}
3064
3065static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3066{
3067 struct ieee80211_local *local = wiphy_priv(wiphy);
3068
3069 return drv_get_antenna(local, tx_ant, rx_ant);
3070}
3071
c68f4b89
JB		 3072static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3073 struct net_device *dev,
3074 struct cfg80211_gtk_rekey_data *data)
3075{
3076 struct ieee80211_local *local = wiphy_priv(wiphy);
3077 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3078
3079 if (!local->ops->set_rekey_data)
3080 return -EOPNOTSUPP;
3081
3082 drv_set_rekey_data(local, sdata, data);
3083
3084 return 0;
3085}
3086
06500736
JB		 3087static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3088 const u8 *peer, u64 *cookie)
3089{
3090 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3091 struct ieee80211_local *local = sdata->local;
3092 struct ieee80211_qos_hdr *nullfunc;
5ee00dbd 3093 struct sk_buff *skb;
06500736
JB		 3094 int size = sizeof(*nullfunc);
3095 __le16 fc;
3096 bool qos;
3097 struct ieee80211_tx_info *info;
3098 struct sta_info *sta;
55de908a
JB		 3099 struct ieee80211_chanctx_conf *chanctx_conf;
3100 enum ieee80211_band band;
3b79af97
JB		 3101 int ret;
3102
3103 /* the lock is needed to assign the cookie later */
3104 mutex_lock(&local->mtx);
06500736
JB		 3105
3106 rcu_read_lock();
55de908a
JB		 3107 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3108 if (WARN_ON(!chanctx_conf)) {
3b79af97
JB		 3109 ret = -EINVAL;
3110 goto unlock;
55de908a 3111 }
4bf88530 3112 band = chanctx_conf->def.chan->band;
03bb7f42 3113 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3114 if (sta) {
a74a8c84 3115 qos = sta->sta.wme;
b4487c2d 3116 } else {
3b79af97
JB		 3117 ret = -ENOLINK;
3118 goto unlock;
b4487c2d 3119 }
06500736
JB		 3120
3121 if (qos) {
3122 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3123 IEEE80211_STYPE_QOS_NULLFUNC |
3124 IEEE80211_FCTL_FROMDS);
3125 } else {
3126 size -= 2;
3127 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3128 IEEE80211_STYPE_NULLFUNC |
3129 IEEE80211_FCTL_FROMDS);
3130 }
3131
3132 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a 3133 if (!skb) {
3b79af97
JB		 3134 ret = -ENOMEM;
3135 goto unlock;
55de908a 3136 }
06500736
JB		 3137
3138 skb->dev = dev;
3139
3140 skb_reserve(skb, local->hw.extra_tx_headroom);
3141
3142 nullfunc = (void *) skb_put(skb, size);
3143 nullfunc->frame_control = fc;
3144 nullfunc->duration_id = 0;
3145 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3146 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3147 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3148 nullfunc->seq_ctrl = 0;
3149
3150 info = IEEE80211_SKB_CB(skb);
3151
3152 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3153 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
73c4e195 3154 info->band = band;
06500736
JB		 3155
3156 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3157 skb->priority = 7;
3158 if (qos)
3159 nullfunc->qos_ctrl = cpu_to_le16(7);
3160
5ee00dbd
JB		 3161 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3162 if (ret) {
3b79af97 3163 kfree_skb(skb);
3b79af97
JB		 3164 goto unlock;
3165 }
3166
06500736 3167 local_bh_disable();
7c10770f 3168 ieee80211_xmit(sdata, sta, skb);
06500736 3169 local_bh_enable();
3b79af97
JB		 3170
3171 ret = 0;
3172unlock:
55de908a 3173 rcu_read_unlock();
3b79af97 3174 mutex_unlock(&local->mtx);
06500736 3175
3b79af97 3176 return ret;
06500736
JB		 3177}
3178
683b6d3b
JB		 3179static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3180 struct wireless_dev *wdev,
3181 struct cfg80211_chan_def *chandef)
5b7ccaf3 3182{
55de908a 3183 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3184 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3185 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3186 int ret = -ENODATA;
55de908a
JB		 3187
3188 rcu_read_lock();
feda3027
JB		 3189 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3190 if (chanctx_conf) {
c12bc488 3191 *chandef = sdata->vif.bss_conf.chandef;
feda3027
JB		 3192 ret = 0;
3193 } else if (local->open_count > 0 &&
3194 local->open_count == local->monitors &&
3195 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3196 if (local->use_chanctx)
3197 *chandef = local->monitor_chandef;
3198 else
675a0b04 3199 *chandef = local->_oper_chandef;
683b6d3b 3200 ret = 0;
55de908a
JB		 3201 }
3202 rcu_read_unlock();
5b7ccaf3 3203
683b6d3b 3204 return ret;
5b7ccaf3
JB		 3205}
3206
6d52563f
JB		 3207#ifdef CONFIG_PM
3208static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3209{
3210 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3211}
3212#endif
3213
32db6b54
KP		 3214static int ieee80211_set_qos_map(struct wiphy *wiphy,
3215 struct net_device *dev,
3216 struct cfg80211_qos_map *qos_map)
3217{
3218 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3219 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3220
3221 if (qos_map) {
3222 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3223 if (!new_qos_map)
3224 return -ENOMEM;
3225 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3226 } else {
3227 /* A NULL qos_map was passed to disable QoS mapping */
3228 new_qos_map = NULL;
3229 }
3230
194ff52d 3231 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3232 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3233 if (old_qos_map)
3234 kfree_rcu(old_qos_map, rcu_head);
3235
3236 return 0;
3237}
3238
3b1700bd
JM		 3239static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3240 struct net_device *dev,
3241 struct cfg80211_chan_def *chandef)
3242{
3243 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3244 int ret;
3245 u32 changed = 0;
3246
3247 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3248 if (ret == 0)
3249 ieee80211_bss_info_change_notify(sdata, changed);
3250
3251 return ret;
3252}
3253
02219b3a
JB		 3254static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3255 u8 tsid, const u8 *peer, u8 up,
3256 u16 admitted_time)
3257{
3258 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3259 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3260 int ac = ieee802_1d_to_ac[up];
3261
3262 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3263 return -EOPNOTSUPP;
3264
3265 if (!(sdata->wmm_acm & BIT(up)))
3266 return -EINVAL;
3267
3268 if (ifmgd->tx_tspec[ac].admitted_time)
3269 return -EBUSY;
3270
3271 if (admitted_time) {
3272 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3273 ifmgd->tx_tspec[ac].tsid = tsid;
3274 ifmgd->tx_tspec[ac].up = up;
3275 }
3276
3277 return 0;
3278}
3279
3280static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3281 u8 tsid, const u8 *peer)
3282{
3283 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3284 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3285 struct ieee80211_local *local = wiphy_priv(wiphy);
3286 int ac;
3287
3288 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3289 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3290
3291 /* skip unused entries */
3292 if (!tx_tspec->admitted_time)
3293 continue;
3294
3295 if (tx_tspec->tsid != tsid)
3296 continue;
3297
3298 /* due to this new packets will be reassigned to non-ACM ACs */
3299 tx_tspec->up = -1;
3300
3301 /* Make sure that all packets have been sent to avoid to
3302 * restore the QoS params on packets that are still on the
3303 * queues.
3304 */
3305 synchronize_net();
3b24f4c6 3306 ieee80211_flush_queues(local, sdata, false);
02219b3a
JB		 3307
3308 /* restore the normal QoS parameters
3309 * (unconditionally to avoid races)
3310 */
3311 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3312 tx_tspec->downgraded = false;
3313 ieee80211_sta_handle_tspec_ac_params(sdata);
3314
3315 /* finally clear all the data */
3316 memset(tx_tspec, 0, sizeof(*tx_tspec));
3317
3318 return 0;
3319 }
3320
3321 return -ENOENT;
3322}
3323
8a47cea7 3324const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3325 .add_virtual_intf = ieee80211_add_iface,
3326 .del_virtual_intf = ieee80211_del_iface,
42613db7 3327 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3328 .start_p2p_device = ieee80211_start_p2p_device,
3329 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3330 .add_key = ieee80211_add_key,
3331 .del_key = ieee80211_del_key,
62da92fb 3332 .get_key = ieee80211_get_key,
e8cbb4cb 3333 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3334 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3335 .start_ap = ieee80211_start_ap,
3336 .change_beacon = ieee80211_change_beacon,
3337 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3338 .add_station = ieee80211_add_station,
3339 .del_station = ieee80211_del_station,
3340 .change_station = ieee80211_change_station,
7bbdd2d9 3341 .get_station = ieee80211_get_station,
c5dd9c2b 3342 .dump_station = ieee80211_dump_station,
1289723e 3343 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3344#ifdef CONFIG_MAC80211_MESH
3345 .add_mpath = ieee80211_add_mpath,
3346 .del_mpath = ieee80211_del_mpath,
3347 .change_mpath = ieee80211_change_mpath,
3348 .get_mpath = ieee80211_get_mpath,
3349 .dump_mpath = ieee80211_dump_mpath,
a2db2ed3
HR		 3350 .get_mpp = ieee80211_get_mpp,
3351 .dump_mpp = ieee80211_dump_mpp,
24bdd9f4
JC		 3352 .update_mesh_config = ieee80211_update_mesh_config,
3353 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3354 .join_mesh = ieee80211_join_mesh,
3355 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3356#endif
239281f8
RL		 3357 .join_ocb = ieee80211_join_ocb,
3358 .leave_ocb = ieee80211_leave_ocb,
9f1ba906 3359 .change_bss = ieee80211_change_bss,
31888487 3360 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3361 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3362 .suspend = ieee80211_suspend,
3363 .resume = ieee80211_resume,
2a519311 3364 .scan = ieee80211_scan,
91f123f2 3365 .abort_scan = ieee80211_abort_scan,
79f460ca
LC		 3366 .sched_scan_start = ieee80211_sched_scan_start,
3367 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3368 .auth = ieee80211_auth,
3369 .assoc = ieee80211_assoc,
3370 .deauth = ieee80211_deauth,
3371 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3372 .join_ibss = ieee80211_join_ibss,
3373 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3374 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3375 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3376 .set_tx_power = ieee80211_set_tx_power,
3377 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3378 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3379 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3380 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3381 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3382 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3383 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3384 .remain_on_channel = ieee80211_remain_on_channel,
3385 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3386 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3387 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3388 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3389 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3390 .set_antenna = ieee80211_set_antenna,
3391 .get_antenna = ieee80211_get_antenna,
c68f4b89 3392 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3393 .tdls_oper = ieee80211_tdls_oper,
3394 .tdls_mgmt = ieee80211_tdls_mgmt,
a7a6bdd0
AN		 3395 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3396 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
06500736 3397 .probe_client = ieee80211_probe_client,
b53be792 3398 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3399#ifdef CONFIG_PM
3400 .set_wakeup = ieee80211_set_wakeup,
3401#endif
5b7ccaf3 3402 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3403 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3404 .channel_switch = ieee80211_channel_switch,
32db6b54 3405 .set_qos_map = ieee80211_set_qos_map,
3b1700bd 3406 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
02219b3a
JB		 3407 .add_tx_ts = ieee80211_add_tx_ts,
3408 .del_tx_ts = ieee80211_del_tx_ts,
f0706e82 3409};
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