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ipv6: honor ifindex in case we receive ll addresses in router advertisements
[deliverable/linux.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
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
d582cffb
JB		 1218 /*
1219 * defaults -- if userspace wants something else we'll
1220 * change it accordingly in sta_apply_parameters()
1221 */
44674d9c
AB		 1222 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
1223 !(params->sta_flags_set & (BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1224 BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
77ee7c89
JB		 1225 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1226 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1227 }
44674d9c
AB		 1228 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1229 sta->sta.tdls = true;
4fd6931e 1230
d9a7ddb0
JB		 1231 err = sta_apply_parameters(local, sta, params);
1232 if (err) {
1233 sta_info_free(local, sta);
1234 return err;
1235 }
4fd6931e 1236
d64cf63e 1237 /*
44674d9c
AB		 1238 * for TDLS and for unassociated station, rate control should be
1239 * initialized only when rates are known and station is marked
1240 * authorized/associated
d64cf63e 1241 */
44674d9c
AB		 1242 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1243 test_sta_flag(sta, WLAN_STA_ASSOC))
d64cf63e 1244 rate_control_rate_init(sta);
4fd6931e 1245
b8d476c8
JM		 1246 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1247 sdata->vif.type == NL80211_IFTYPE_AP;
1248
34e89507 1249 err = sta_info_insert_rcu(sta);
73651ee6 1250 if (err) {
73651ee6
JB		 1251 rcu_read_unlock();
1252 return err;
1253 }
1254
b8d476c8 1255 if (layer2_update)
73651ee6
JB		 1256 ieee80211_send_layer2_update(sta);
1257
1258 rcu_read_unlock();
1259
4fd6931e
JB		 1260 return 0;
1261}
1262
1263static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
89c771e5 1264 struct station_del_parameters *params)
4fd6931e 1265{
14db74bc 1266 struct ieee80211_sub_if_data *sdata;
4fd6931e 1267
14db74bc
JB		 1268 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1269
89c771e5
JM		 1270 if (params->mac)
1271 return sta_info_destroy_addr_bss(sdata, params->mac);
4fd6931e 1272
b998e8bb 1273 sta_info_flush(sdata);
4fd6931e
JB		 1274 return 0;
1275}
1276
1277static int ieee80211_change_station(struct wiphy *wiphy,
3b3a0162 1278 struct net_device *dev, const u8 *mac,
4fd6931e
JB		 1279 struct station_parameters *params)
1280{
abe60632 1281 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1282 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1283 struct sta_info *sta;
1284 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1285 enum cfg80211_station_type statype;
35b88623 1286 int err;
4fd6931e 1287
87be1e1e 1288 mutex_lock(&local->sta_mtx);
98dd6a57 1289
0e5ded5a 1290 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1291 if (!sta) {
77ee7c89
JB		 1292 err = -ENOENT;
1293 goto out_err;
98dd6a57 1294 }
4fd6931e 1295
77ee7c89
JB		 1296 switch (sdata->vif.type) {
1297 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1298 if (sdata->u.mesh.user_mpm)
eef941e6 1299 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1300 else
eef941e6 1301 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1302 break;
1303 case NL80211_IFTYPE_ADHOC:
1304 statype = CFG80211_STA_IBSS;
1305 break;
1306 case NL80211_IFTYPE_STATION:
1307 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1308 statype = CFG80211_STA_AP_STA;
1309 break;
1310 }
1311 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1312 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1313 else
1314 statype = CFG80211_STA_TDLS_PEER_SETUP;
1315 break;
1316 case NL80211_IFTYPE_AP:
1317 case NL80211_IFTYPE_AP_VLAN:
44674d9c
AB		 1318 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1319 statype = CFG80211_STA_AP_CLIENT;
1320 else
1321 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
77ee7c89
JB		 1322 break;
1323 default:
1324 err = -EOPNOTSUPP;
1325 goto out_err;
bdd90d5e
JB		 1326 }
1327
77ee7c89
JB		 1328 err = cfg80211_check_station_change(wiphy, params, statype);
1329 if (err)
1330 goto out_err;
1331
d0709a65 1332 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1333 bool prev_4addr = false;
1334 bool new_4addr = false;
1335
4fd6931e
JB		 1336 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1337
9bc383de 1338 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1339 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1340 err = -EBUSY;
1341 goto out_err;
3305443c 1342 }
f14543ee 1343
cf778b00 1344 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1345 new_4addr = true;
1346 }
1347
1348 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1349 sta->sdata->u.vlan.sta) {
0c2bef46 1350 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
7e3ed02c 1351 prev_4addr = true;
f14543ee
FF		 1352 }
1353
14db74bc 1354 sta->sdata = vlansdata;
464daaf0 1355 ieee80211_check_fast_xmit(sta);
7e3ed02c
FF		 1356
1357 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1358 prev_4addr != new_4addr) {
1359 if (new_4addr)
1360 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1361 else
1362 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1363 }
1364
4fd6931e
JB		 1365 ieee80211_send_layer2_update(sta);
1366 }
1367
35b88623 1368 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1369 if (err)
1370 goto out_err;
4fd6931e 1371
87be1e1e 1372 mutex_unlock(&local->sta_mtx);
98dd6a57 1373
687da132
EG		 1374 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1375 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1376 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1377 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1378 sta_info_tx_streams(sta) != 1) {
1379 ht_dbg(sta->sdata,
1380 "%pM just authorized and MIMO capable - update SMPS\n",
1381 sta->sta.addr);
1382 ieee80211_send_smps_action(sta->sdata,
1383 sta->sdata->bss->req_smps,
1384 sta->sta.addr,
1385 sta->sdata->vif.bss_conf.bssid);
1386 }
1387
808118cb 1388 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1389 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
4a733ef1 1390 ieee80211_recalc_ps(local);
ab095877
EP		 1391 ieee80211_recalc_ps_vif(sdata);
1392 }
77ee7c89 1393
4fd6931e 1394 return 0;
77ee7c89
JB		 1395out_err:
1396 mutex_unlock(&local->sta_mtx);
1397 return err;
4fd6931e
JB		 1398}
1399
c5dd9c2b
LCC		 1400#ifdef CONFIG_MAC80211_MESH
1401static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1402 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1403{
14db74bc 1404 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1405 struct mesh_path *mpath;
1406 struct sta_info *sta;
c5dd9c2b 1407
14db74bc
JB		 1408 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1409
d0709a65 1410 rcu_read_lock();
abe60632 1411 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1412 if (!sta) {
1413 rcu_read_unlock();
c5dd9c2b 1414 return -ENOENT;
d0709a65 1415 }
c5dd9c2b 1416
ae76eef0
BC		 1417 mpath = mesh_path_add(sdata, dst);
1418 if (IS_ERR(mpath)) {
d0709a65 1419 rcu_read_unlock();
ae76eef0 1420 return PTR_ERR(mpath);
d0709a65 1421 }
c5dd9c2b 1422
c5dd9c2b 1423 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1424
c5dd9c2b
LCC		 1425 rcu_read_unlock();
1426 return 0;
1427}
1428
1429static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1430 const u8 *dst)
c5dd9c2b 1431{
f698d856
JBG		 1432 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1433
c5dd9c2b 1434 if (dst)
bf7cd94d 1435 return mesh_path_del(sdata, dst);
c5dd9c2b 1436
ece1a2e7 1437 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1438 return 0;
1439}
1440
3b3a0162
JB		 1441static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1442 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1443{
14db74bc 1444 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1445 struct mesh_path *mpath;
1446 struct sta_info *sta;
1447
14db74bc
JB		 1448 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1449
d0709a65
JB		 1450 rcu_read_lock();
1451
abe60632 1452 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1453 if (!sta) {
1454 rcu_read_unlock();
c5dd9c2b 1455 return -ENOENT;
d0709a65 1456 }
c5dd9c2b 1457
bf7cd94d 1458 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1459 if (!mpath) {
1460 rcu_read_unlock();
c5dd9c2b
LCC		 1461 return -ENOENT;
1462 }
1463
1464 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1465
c5dd9c2b
LCC		 1466 rcu_read_unlock();
1467 return 0;
1468}
1469
1470static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1471 struct mpath_info *pinfo)
1472{
a3836e02
JB		 1473 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1474
1475 if (next_hop_sta)
1476 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b 1477 else
c84a67a2 1478 eth_zero_addr(next_hop);
c5dd9c2b 1479
7ce8c7a3
LAYS		 1480 memset(pinfo, 0, sizeof(*pinfo));
1481
f5ea9120
JB		 1482 pinfo->generation = mesh_paths_generation;
1483
c5dd9c2b 1484 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1485 MPATH_INFO_SN |
c5dd9c2b
LCC		 1486 MPATH_INFO_METRIC |
1487 MPATH_INFO_EXPTIME |
1488 MPATH_INFO_DISCOVERY_TIMEOUT |
1489 MPATH_INFO_DISCOVERY_RETRIES |
1490 MPATH_INFO_FLAGS;
1491
1492 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1493 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1494 pinfo->metric = mpath->metric;
1495 if (time_before(jiffies, mpath->exp_time))
1496 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1497 pinfo->discovery_timeout =
1498 jiffies_to_msecs(mpath->discovery_timeout);
1499 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1500 if (mpath->flags & MESH_PATH_ACTIVE)
1501 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1502 if (mpath->flags & MESH_PATH_RESOLVING)
1503 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1504 if (mpath->flags & MESH_PATH_SN_VALID)
1505 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1506 if (mpath->flags & MESH_PATH_FIXED)
1507 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1508 if (mpath->flags & MESH_PATH_RESOLVED)
1509 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1510}
1511
1512static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1513 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1514
1515{
14db74bc 1516 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1517 struct mesh_path *mpath;
1518
14db74bc
JB		 1519 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1520
c5dd9c2b 1521 rcu_read_lock();
bf7cd94d 1522 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1523 if (!mpath) {
1524 rcu_read_unlock();
1525 return -ENOENT;
1526 }
1527 memcpy(dst, mpath->dst, ETH_ALEN);
1528 mpath_set_pinfo(mpath, next_hop, pinfo);
1529 rcu_read_unlock();
1530 return 0;
1531}
1532
1533static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1534 int idx, u8 *dst, u8 *next_hop,
1535 struct mpath_info *pinfo)
c5dd9c2b 1536{
14db74bc 1537 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1538 struct mesh_path *mpath;
1539
14db74bc
JB		 1540 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1541
c5dd9c2b 1542 rcu_read_lock();
bf7cd94d 1543 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1544 if (!mpath) {
1545 rcu_read_unlock();
1546 return -ENOENT;
1547 }
1548 memcpy(dst, mpath->dst, ETH_ALEN);
1549 mpath_set_pinfo(mpath, next_hop, pinfo);
1550 rcu_read_unlock();
1551 return 0;
1552}
93da9cc1 1553
a2db2ed3
HR		 1554static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1555 struct mpath_info *pinfo)
1556{
1557 memset(pinfo, 0, sizeof(*pinfo));
1558 memcpy(mpp, mpath->mpp, ETH_ALEN);
1559
1560 pinfo->generation = mpp_paths_generation;
1561}
1562
1563static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1564 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1565
1566{
1567 struct ieee80211_sub_if_data *sdata;
1568 struct mesh_path *mpath;
1569
1570 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1571
1572 rcu_read_lock();
1573 mpath = mpp_path_lookup(sdata, dst);
1574 if (!mpath) {
1575 rcu_read_unlock();
1576 return -ENOENT;
1577 }
1578 memcpy(dst, mpath->dst, ETH_ALEN);
1579 mpp_set_pinfo(mpath, mpp, pinfo);
1580 rcu_read_unlock();
1581 return 0;
1582}
1583
1584static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1585 int idx, u8 *dst, u8 *mpp,
1586 struct mpath_info *pinfo)
1587{
1588 struct ieee80211_sub_if_data *sdata;
1589 struct mesh_path *mpath;
1590
1591 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1592
1593 rcu_read_lock();
1594 mpath = mpp_path_lookup_by_idx(sdata, idx);
1595 if (!mpath) {
1596 rcu_read_unlock();
1597 return -ENOENT;
1598 }
1599 memcpy(dst, mpath->dst, ETH_ALEN);
1600 mpp_set_pinfo(mpath, mpp, pinfo);
1601 rcu_read_unlock();
1602 return 0;
1603}
1604
24bdd9f4 1605static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1606 struct net_device *dev,
1607 struct mesh_config *conf)
1608{
1609 struct ieee80211_sub_if_data *sdata;
1610 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1611
93da9cc1 1612 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1613 return 0;
1614}
1615
1616static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1617{
1618 return (mask >> (parm-1)) & 0x1;
1619}
1620
c80d545d
JC		 1621static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1622 const struct mesh_setup *setup)
1623{
1624 u8 *new_ie;
1625 const u8 *old_ie;
4bb62344
CYY		 1626 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1627 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1628
581a8b0f 1629 /* allocate information elements */
c80d545d 1630 new_ie = NULL;
581a8b0f 1631 old_ie = ifmsh->ie;
c80d545d 1632
581a8b0f
JC		 1633 if (setup->ie_len) {
1634 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1635 GFP_KERNEL);
1636 if (!new_ie)
1637 return -ENOMEM;
1638 }
581a8b0f
JC		 1639 ifmsh->ie_len = setup->ie_len;
1640 ifmsh->ie = new_ie;
1641 kfree(old_ie);
c80d545d
JC		 1642
1643 /* now copy the rest of the setup parameters */
1644 ifmsh->mesh_id_len = setup->mesh_id_len;
1645 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1646 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1647 ifmsh->mesh_pp_id = setup->path_sel_proto;
1648 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1649 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1650 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1651 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1652 if (setup->is_authenticated)
1653 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1654 if (setup->is_secure)
1655 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1656
4bb62344
CYY		 1657 /* mcast rate setting in Mesh Node */
1658 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1659 sizeof(setup->mcast_rate));
ffb3cf30 1660 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1661
9bdbf04d
MP		 1662 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1663 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1664
c80d545d
JC		 1665 return 0;
1666}
1667
24bdd9f4 1668static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1669 struct net_device *dev, u32 mask,
1670 const struct mesh_config *nconf)
93da9cc1 1671{
1672 struct mesh_config *conf;
1673 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1674 struct ieee80211_if_mesh *ifmsh;
1675
93da9cc1 1676 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1677 ifmsh = &sdata->u.mesh;
93da9cc1 1678
93da9cc1 1679 /* Set the config options which we are interested in setting */
1680 conf = &(sdata->u.mesh.mshcfg);
1681 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1682 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1683 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1684 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1685 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1686 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1687 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1688 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1689 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1690 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1691 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1692 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1693 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1694 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1695 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1696 if (ifmsh->user_mpm)
1697 return -EBUSY;
93da9cc1 1698 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1699 }
d299a1f2
JC		 1700 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1701 conf->dot11MeshNbrOffsetMaxNeighbor =
1702 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1703 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1704 conf->dot11MeshHWMPmaxPREQretries =
1705 nconf->dot11MeshHWMPmaxPREQretries;
1706 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1707 conf->path_refresh_time = nconf->path_refresh_time;
1708 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1709 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1710 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1711 conf->dot11MeshHWMPactivePathTimeout =
1712 nconf->dot11MeshHWMPactivePathTimeout;
1713 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1714 conf->dot11MeshHWMPpreqMinInterval =
1715 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1716 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1717 conf->dot11MeshHWMPperrMinInterval =
1718 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1719 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1720 mask))
1721 conf->dot11MeshHWMPnetDiameterTraversalTime =
1722 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1723 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1724 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1725 ieee80211_mesh_root_setup(ifmsh);
1726 }
16dd7267 1727 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1728 /* our current gate announcement implementation rides on root
1729 * announcements, so require this ifmsh to also be a root node
1730 * */
1731 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1732 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1733 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1734 ieee80211_mesh_root_setup(ifmsh);
1735 }
16dd7267
JC		 1736 conf->dot11MeshGateAnnouncementProtocol =
1737 nconf->dot11MeshGateAnnouncementProtocol;
1738 }
a4f606ea 1739 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1740 conf->dot11MeshHWMPRannInterval =
1741 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1742 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1743 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1744 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1745 /* our RSSI threshold implementation is supported only for
1746 * devices that report signal in dBm.
1747 */
30686bf7 1748 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
55335137
AN		 1749 return -ENOTSUPP;
1750 conf->rssi_threshold = nconf->rssi_threshold;
1751 }
70c33eaa
AN		 1752 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1753 conf->ht_opmode = nconf->ht_opmode;
1754 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1755 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1756 }
ac1073a6
CYY		 1757 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1758 conf->dot11MeshHWMPactivePathToRootTimeout =
1759 nconf->dot11MeshHWMPactivePathToRootTimeout;
1760 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1761 conf->dot11MeshHWMProotInterval =
1762 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1763 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1764 conf->dot11MeshHWMPconfirmationInterval =
1765 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1766 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1767 conf->power_mode = nconf->power_mode;
1768 ieee80211_mps_local_status_update(sdata);
1769 }
2b5e1967 1770 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1771 conf->dot11MeshAwakeWindowDuration =
1772 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1773 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1774 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1775 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1776 return 0;
1777}
1778
29cbe68c
JB		 1779static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1780 const struct mesh_config *conf,
1781 const struct mesh_setup *setup)
1782{
1783 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1784 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1785 int err;
29cbe68c 1786
c80d545d
JC		 1787 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1788 err = copy_mesh_setup(ifmsh, setup);
1789 if (err)
1790 return err;
cc1d2806 1791
04ecd257
JB		 1792 /* can mesh use other SMPS modes? */
1793 sdata->smps_mode = IEEE80211_SMPS_OFF;
1794 sdata->needed_rx_chains = sdata->local->rx_chains;
1795
34a3740d 1796 mutex_lock(&sdata->local->mtx);
4bf88530 1797 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1798 IEEE80211_CHANCTX_SHARED);
34a3740d 1799 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1800 if (err)
1801 return err;
1802
2b5e1967 1803 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1804}
1805
1806static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1807{
1808 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1809
1810 ieee80211_stop_mesh(sdata);
34a3740d 1811 mutex_lock(&sdata->local->mtx);
55de908a 1812 ieee80211_vif_release_channel(sdata);
34a3740d 1813 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1814
1815 return 0;
1816}
c5dd9c2b
LCC		 1817#endif
1818
9f1ba906
JM		 1819static int ieee80211_change_bss(struct wiphy *wiphy,
1820 struct net_device *dev,
1821 struct bss_parameters *params)
1822{
55de908a
JB		 1823 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1824 enum ieee80211_band band;
9f1ba906
JM		 1825 u32 changed = 0;
1826
7ca133bc 1827 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1828 return -ENOENT;
1829
1830 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1831
9f1ba906 1832 if (params->use_cts_prot >= 0) {
bda3933a 1833 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1834 changed |= BSS_CHANGED_ERP_CTS_PROT;
1835 }
1836 if (params->use_short_preamble >= 0) {
bda3933a 1837 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1838 params->use_short_preamble;
1839 changed |= BSS_CHANGED_ERP_PREAMBLE;
1840 }
43d35343
FF		 1841
1842 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1843 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1844 sdata->vif.bss_conf.use_short_slot = true;
1845 changed |= BSS_CHANGED_ERP_SLOT;
1846 }
1847
9f1ba906 1848 if (params->use_short_slot_time >= 0) {
bda3933a 1849 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1850 params->use_short_slot_time;
1851 changed |= BSS_CHANGED_ERP_SLOT;
1852 }
1853
90c97a04 1854 if (params->basic_rates) {
2103dec1
SW		 1855 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1856 wiphy->bands[band],
1857 params->basic_rates,
1858 params->basic_rates_len,
1859 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 1860 changed |= BSS_CHANGED_BASIC_RATES;
1861 }
1862
7b7b5e56
FF		 1863 if (params->ap_isolate >= 0) {
1864 if (params->ap_isolate)
1865 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1866 else
1867 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1868 }
1869
80d7e403
HS		 1870 if (params->ht_opmode >= 0) {
1871 sdata->vif.bss_conf.ht_operation_mode =
1872 (u16) params->ht_opmode;
1873 changed |= BSS_CHANGED_HT;
1874 }
1875
339afbf4 1876 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1877 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1878 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1879 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1880 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1881 changed |= BSS_CHANGED_P2P_PS;
1882 }
1883
67baf663
JD		 1884 if (params->p2p_opp_ps > 0) {
1885 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1886 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1887 changed |= BSS_CHANGED_P2P_PS;
1888 } else if (params->p2p_opp_ps == 0) {
1889 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1890 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1891 changed |= BSS_CHANGED_P2P_PS;
1892 }
1893
9f1ba906
JM		 1894 ieee80211_bss_info_change_notify(sdata, changed);
1895
1896 return 0;
1897}
1898
31888487 1899static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1900 struct net_device *dev,
31888487
JM		 1901 struct ieee80211_txq_params *params)
1902{
1903 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1904 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1905 struct ieee80211_tx_queue_params p;
1906
1907 if (!local->ops->conf_tx)
1908 return -EOPNOTSUPP;
1909
54bcbc69
JB		 1910 if (local->hw.queues < IEEE80211_NUM_ACS)
1911 return -EOPNOTSUPP;
1912
31888487
JM		 1913 memset(&p, 0, sizeof(p));
1914 p.aifs = params->aifs;
1915 p.cw_max = params->cwmax;
1916 p.cw_min = params->cwmin;
1917 p.txop = params->txop;
ab13315a
KV		 1918
1919 /*
1920 * Setting tx queue params disables u-apsd because it's only
1921 * called in master mode.
1922 */
1923 p.uapsd = false;
1924
a3304b0a
JB		 1925 sdata->tx_conf[params->ac] = p;
1926 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 1927 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 1928 "failed to set TX queue parameters for AC %d\n",
1929 params->ac);
31888487
JM		 1930 return -EINVAL;
1931 }
1932
7d25745d
JB		 1933 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1934
31888487
JM		 1935 return 0;
1936}
1937
665af4fc 1938#ifdef CONFIG_PM
ff1b6e69
JB		 1939static int ieee80211_suspend(struct wiphy *wiphy,
1940 struct cfg80211_wowlan *wowlan)
665af4fc 1941{
eecc4800 1942 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1943}
1944
1945static int ieee80211_resume(struct wiphy *wiphy)
1946{
1947 return __ieee80211_resume(wiphy_priv(wiphy));
1948}
1949#else
1950#define ieee80211_suspend NULL
1951#define ieee80211_resume NULL
1952#endif
1953
2a519311 1954static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 1955 struct cfg80211_scan_request *req)
1956{
fd014284
JB		 1957 struct ieee80211_sub_if_data *sdata;
1958
1959 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 1960
2ca27bcf
JB		 1961 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1962 case NL80211_IFTYPE_STATION:
1963 case NL80211_IFTYPE_ADHOC:
1964 case NL80211_IFTYPE_MESH_POINT:
1965 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 1966 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 1967 break;
1968 case NL80211_IFTYPE_P2P_GO:
1969 if (sdata->local->ops->hw_scan)
1970 break;
e9d7732e
JB		 1971 /*
1972 * FIXME: implement NoA while scanning in software,
1973 * for now fall through to allow scanning only when
1974 * beaconing hasn't been configured yet
1975 */
2ca27bcf 1976 case NL80211_IFTYPE_AP:
5c95b940
AQ		 1977 /*
1978 * If the scan has been forced (and the driver supports
1979 * forcing), don't care about being beaconing already.
1980 * This will create problems to the attached stations (e.g. all
1981 * the frames sent while scanning on other channel will be
1982 * lost)
1983 */
1984 if (sdata->u.ap.beacon &&
1985 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1986 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 1987 return -EOPNOTSUPP;
1988 break;
1989 default:
1990 return -EOPNOTSUPP;
1991 }
2a519311
JB		 1992
1993 return ieee80211_request_scan(sdata, req);
1994}
1995
79f460ca
LC		 1996static int
1997ieee80211_sched_scan_start(struct wiphy *wiphy,
1998 struct net_device *dev,
1999 struct cfg80211_sched_scan_request *req)
2000{
2001 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2002
2003 if (!sdata->local->ops->sched_scan_start)
2004 return -EOPNOTSUPP;
2005
2006 return ieee80211_request_sched_scan_start(sdata, req);
2007}
2008
2009static int
85a9994a 2010ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca 2011{
0d440ea2 2012 struct ieee80211_local *local = wiphy_priv(wiphy);
79f460ca 2013
0d440ea2 2014 if (!local->ops->sched_scan_stop)
79f460ca
LC		 2015 return -EOPNOTSUPP;
2016
0d440ea2 2017 return ieee80211_request_sched_scan_stop(local);
79f460ca
LC		 2018}
2019
636a5d36
JM		 2020static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2021 struct cfg80211_auth_request *req)
2022{
77fdaa12 2023 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2024}
2025
2026static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2027 struct cfg80211_assoc_request *req)
2028{
77fdaa12 2029 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2030}
2031
2032static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2033 struct cfg80211_deauth_request *req)
636a5d36 2034{
63c9c5e7 2035 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2036}
2037
2038static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2039 struct cfg80211_disassoc_request *req)
636a5d36 2040{
63c9c5e7 2041 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2042}
2043
af8cdcd8
JB		 2044static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2045 struct cfg80211_ibss_params *params)
2046{
55de908a 2047 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2048}
2049
2050static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2051{
55de908a 2052 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2053}
2054
239281f8
RL		 2055static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2056 struct ocb_setup *setup)
2057{
2058 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2059}
2060
2061static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2062{
2063 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2064}
2065
391e53e3
AQ		 2066static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2067 int rate[IEEE80211_NUM_BANDS])
2068{
2069 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2070
9887dbf5
CD		 2071 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2072 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 2073
2074 return 0;
2075}
2076
b9a5f8ca
JM		 2077static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2078{
2079 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2080 int err;
b9a5f8ca 2081
f23a4780 2082 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
17c18bf8
JB		 2083 ieee80211_check_fast_xmit_all(local);
2084
f23a4780
AN		 2085 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2086
17c18bf8
JB		 2087 if (err) {
2088 ieee80211_check_fast_xmit_all(local);
f23a4780 2089 return err;
17c18bf8 2090 }
f23a4780
AN		 2091 }
2092
a4bcaf55
LB		 2093 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2094 (changed & WIPHY_PARAM_DYN_ACK)) {
2095 s16 coverage_class;
2096
2097 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2098 wiphy->coverage_class : -1;
2099 err = drv_set_coverage_class(local, coverage_class);
310bc676
LT		 2100
2101 if (err)
2102 return err;
2103 }
2104
b9a5f8ca 2105 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2106 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2107
24487981
JB		 2108 if (err)
2109 return err;
b9a5f8ca
JM		 2110 }
2111
8bc83c24
JB		 2112 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2113 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2114 return -EINVAL;
b9a5f8ca 2115 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2116 }
2117 if (changed & WIPHY_PARAM_RETRY_LONG) {
2118 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2119 return -EINVAL;
b9a5f8ca 2120 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2121 }
b9a5f8ca
JM		 2122 if (changed &
2123 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2124 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2125
2126 return 0;
2127}
2128
7643a2c3 2129static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2130 struct wireless_dev *wdev,
fa61cf70 2131 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2132{
2133 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2134 struct ieee80211_sub_if_data *sdata;
db82d8a9
LB		 2135 enum nl80211_tx_power_setting txp_type = type;
2136 bool update_txp_type = false;
7643a2c3 2137
1ea6f9c0
JB		 2138 if (wdev) {
2139 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2140
2141 switch (type) {
2142 case NL80211_TX_POWER_AUTOMATIC:
2143 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2144 txp_type = NL80211_TX_POWER_LIMITED;
1ea6f9c0
JB		 2145 break;
2146 case NL80211_TX_POWER_LIMITED:
2147 case NL80211_TX_POWER_FIXED:
2148 if (mbm < 0 || (mbm % 100))
2149 return -EOPNOTSUPP;
2150 sdata->user_power_level = MBM_TO_DBM(mbm);
2151 break;
2152 }
2153
db82d8a9
LB		 2154 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2155 update_txp_type = true;
2156 sdata->vif.bss_conf.txpower_type = txp_type;
2157 }
2158
2159 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0
JB		 2160
2161 return 0;
2162 }
55de908a 2163
7643a2c3 2164 switch (type) {
fa61cf70 2165 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2166 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2167 txp_type = NL80211_TX_POWER_LIMITED;
7643a2c3 2168 break;
fa61cf70 2169 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2170 case NL80211_TX_POWER_FIXED:
2171 if (mbm < 0 || (mbm % 100))
2172 return -EOPNOTSUPP;
fa61cf70 2173 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2174 break;
7643a2c3
JB		 2175 }
2176
1ea6f9c0 2177 mutex_lock(&local->iflist_mtx);
db82d8a9 2178 list_for_each_entry(sdata, &local->interfaces, list) {
1ea6f9c0 2179 sdata->user_power_level = local->user_power_level;
db82d8a9
LB		 2180 if (txp_type != sdata->vif.bss_conf.txpower_type)
2181 update_txp_type = true;
2182 sdata->vif.bss_conf.txpower_type = txp_type;
2183 }
1ea6f9c0 2184 list_for_each_entry(sdata, &local->interfaces, list)
db82d8a9 2185 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0 2186 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2187
2188 return 0;
2189}
2190
c8442118
JB		 2191static int ieee80211_get_tx_power(struct wiphy *wiphy,
2192 struct wireless_dev *wdev,
2193 int *dbm)
7643a2c3
JB		 2194{
2195 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2196 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2197
5b3dc42b
FF		 2198 if (local->ops->get_txpower)
2199 return drv_get_txpower(local, sdata, dbm);
2200
1ea6f9c0
JB		 2201 if (!local->use_chanctx)
2202 *dbm = local->hw.conf.power_level;
2203 else
2204 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2205
7643a2c3
JB		 2206 return 0;
2207}
2208
ab737a4f 2209static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2210 const u8 *addr)
ab737a4f
JB		 2211{
2212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2213
2214 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2215
2216 return 0;
2217}
2218
1f87f7d3
JB		 2219static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2220{
2221 struct ieee80211_local *local = wiphy_priv(wiphy);
2222
2223 drv_rfkill_poll(local);
2224}
2225
aff89a9b 2226#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2227static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2228 struct wireless_dev *wdev,
2229 void *data, int len)
aff89a9b
JB		 2230{
2231 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2232 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2233
2234 if (!local->ops->testmode_cmd)
2235 return -EOPNOTSUPP;
2236
52981cd7
DS		 2237 if (wdev) {
2238 struct ieee80211_sub_if_data *sdata;
2239
2240 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2241 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2242 vif = &sdata->vif;
2243 }
2244
2245 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2246}
71063f0e
WYG		 2247
2248static int ieee80211_testmode_dump(struct wiphy *wiphy,
2249 struct sk_buff *skb,
2250 struct netlink_callback *cb,
2251 void *data, int len)
2252{
2253 struct ieee80211_local *local = wiphy_priv(wiphy);
2254
2255 if (!local->ops->testmode_dump)
2256 return -EOPNOTSUPP;
2257
2258 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2259}
aff89a9b
JB		 2260#endif
2261
687da132
EG		 2262int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2263 enum ieee80211_smps_mode smps_mode)
2264{
2265 struct sta_info *sta;
2266 enum ieee80211_smps_mode old_req;
687da132
EG		 2267
2268 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2269 return -EINVAL;
2270
2271 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2272 return 0;
2273
2274 old_req = sdata->u.ap.req_smps;
2275 sdata->u.ap.req_smps = smps_mode;
2276
2277 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2278 if (old_req == smps_mode ||
2279 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2280 return 0;
2281
2282 /* If no associated stations, there's no need to do anything */
2283 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2284 sdata->smps_mode = smps_mode;
2285 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2286 return 0;
2287 }
2288
2289 ht_dbg(sdata,
6a8b4adb 2290 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
687da132
EG		 2291 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2292
2293 mutex_lock(&sdata->local->sta_mtx);
7d9bb2f0
JB		 2294 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2295 /*
2296 * Only stations associated to our AP and
2297 * associated VLANs
2298 */
2299 if (sta->sdata->bss != &sdata->u.ap)
2300 continue;
687da132 2301
7d9bb2f0
JB		 2302 /* This station doesn't support MIMO - skip it */
2303 if (sta_info_tx_streams(sta) == 1)
2304 continue;
687da132 2305
7d9bb2f0
JB		 2306 /*
2307 * Don't wake up a STA just to send the action frame
2308 * unless we are getting more restrictive.
2309 */
2310 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2311 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2312 smps_mode)) {
2313 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2314 sta->sta.addr);
2315 continue;
2316 }
687da132 2317
7d9bb2f0
JB		 2318 /*
2319 * If the STA is not authorized, wait until it gets
2320 * authorized and the action frame will be sent then.
2321 */
2322 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2323 continue;
687da132 2324
7d9bb2f0
JB		 2325 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2326 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2327 sdata->vif.bss_conf.bssid);
687da132
EG		 2328 }
2329 mutex_unlock(&sdata->local->sta_mtx);
2330
2331 sdata->smps_mode = smps_mode;
2332 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2333
2334 return 0;
2335}
2336
2337int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2338 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2339{
2340 const u8 *ap;
2341 enum ieee80211_smps_mode old_req;
2342 int err;
d51c2ea3
AN		 2343 struct sta_info *sta;
2344 bool tdls_peer_found = false;
0f78231b 2345
8d61ffa5 2346 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2347
687da132
EG		 2348 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2349 return -EINVAL;
2350
0f78231b
JB		 2351 old_req = sdata->u.mgd.req_smps;
2352 sdata->u.mgd.req_smps = smps_mode;
2353
2354 if (old_req == smps_mode &&
2355 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2356 return 0;
2357
2358 /*
2359 * If not associated, or current association is not an HT
04ecd257
JB		 2360 * association, there's no need to do anything, just store
2361 * the new value until we associate.
0f78231b
JB		 2362 */
2363 if (!sdata->u.mgd.associated ||
4bf88530 2364 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2365 return 0;
0f78231b 2366
0c1ad2ca 2367 ap = sdata->u.mgd.associated->bssid;
0f78231b 2368
d51c2ea3
AN		 2369 rcu_read_lock();
2370 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2371 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2372 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2373 continue;
2374
2375 tdls_peer_found = true;
2376 break;
2377 }
2378 rcu_read_unlock();
2379
0f78231b 2380 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
d51c2ea3 2381 if (tdls_peer_found || !sdata->u.mgd.powersave)
0f78231b 2382 smps_mode = IEEE80211_SMPS_OFF;
d51c2ea3
AN		 2383 else
2384 smps_mode = IEEE80211_SMPS_DYNAMIC;
0f78231b
JB		 2385 }
2386
2387 /* send SM PS frame to AP */
2388 err = ieee80211_send_smps_action(sdata, smps_mode,
2389 ap, ap);
2390 if (err)
2391 sdata->u.mgd.req_smps = old_req;
d51c2ea3
AN		 2392 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2393 ieee80211_teardown_tdls_peers(sdata);
0f78231b
JB		 2394
2395 return err;
2396}
2397
bc92afd9
JB		 2398static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2399 bool enabled, int timeout)
2400{
2401 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2402 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2403
2d3db210 2404 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2405 return -EOPNOTSUPP;
2406
30686bf7 2407 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
bc92afd9
JB		 2408 return -EOPNOTSUPP;
2409
2410 if (enabled == sdata->u.mgd.powersave &&
ff616381 2411 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2412 return 0;
2413
2414 sdata->u.mgd.powersave = enabled;
ff616381 2415 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2416
0f78231b 2417 /* no change, but if automatic follow powersave */
ed405be5 2418 sdata_lock(sdata);
687da132 2419 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2420 sdata_unlock(sdata);
0f78231b 2421
30686bf7 2422 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
bc92afd9
JB		 2423 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2424
4a733ef1 2425 ieee80211_recalc_ps(local);
ab095877 2426 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2427
2428 return 0;
2429}
2430
a97c13c3
JO		 2431static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2432 struct net_device *dev,
2433 s32 rssi_thold, u32 rssi_hyst)
2434{
2435 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2436 struct ieee80211_vif *vif = &sdata->vif;
2437 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2438
a97c13c3
JO		 2439 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2440 rssi_hyst == bss_conf->cqm_rssi_hyst)
2441 return 0;
2442
ef9be10c
JB		 2443 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2444 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2445 return -EOPNOTSUPP;
2446
a97c13c3
JO		 2447 bss_conf->cqm_rssi_thold = rssi_thold;
2448 bss_conf->cqm_rssi_hyst = rssi_hyst;
babc305e 2449 sdata->u.mgd.last_cqm_event_signal = 0;
a97c13c3
JO		 2450
2451 /* tell the driver upon association, unless already associated */
ea086359
JB		 2452 if (sdata->u.mgd.associated &&
2453 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2454 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2455
2456 return 0;
2457}
2458
9930380f
JB		 2459static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2460 struct net_device *dev,
2461 const u8 *addr,
2462 const struct cfg80211_bitrate_mask *mask)
2463{
2464 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2465 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2466 int i, ret;
2c7e6bc9 2467
554a43d5
EP		 2468 if (!ieee80211_sdata_running(sdata))
2469 return -ENETDOWN;
2470
30686bf7 2471 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
bdbfd6b5
SM		 2472 ret = drv_set_bitrate_mask(local, sdata, mask);
2473 if (ret)
2474 return ret;
2475 }
9930380f 2476
19468413 2477 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2478 struct ieee80211_supported_band *sband = wiphy->bands[i];
2479 int j;
2480
37eb0b16 2481 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2482 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2483 sizeof(mask->control[i].ht_mcs));
b119ad6e
LB		 2484 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2485 mask->control[i].vht_mcs,
2486 sizeof(mask->control[i].vht_mcs));
2ffbe6d3
FF		 2487
2488 sdata->rc_has_mcs_mask[i] = false;
b119ad6e 2489 sdata->rc_has_vht_mcs_mask[i] = false;
2ffbe6d3
FF		 2490 if (!sband)
2491 continue;
2492
b119ad6e 2493 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2df1b131 2494 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2ffbe6d3 2495 sdata->rc_has_mcs_mask[i] = true;
2df1b131
JB		 2496 break;
2497 }
2498 }
b119ad6e 2499
2df1b131
JB		 2500 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2501 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
b119ad6e 2502 sdata->rc_has_vht_mcs_mask[i] = true;
2ffbe6d3 2503 break;
2df1b131 2504 }
b119ad6e 2505 }
19468413 2506 }
9930380f 2507
37eb0b16 2508 return 0;
9930380f
JB		 2509}
2510
eaa336b0
EP		 2511static bool ieee80211_coalesce_started_roc(struct ieee80211_local *local,
2512 struct ieee80211_roc_work *new_roc,
2513 struct ieee80211_roc_work *cur_roc)
2514{
252ec2b3
JB		 2515 unsigned long now = jiffies;
2516 unsigned long remaining = cur_roc->hw_start_time +
2517 msecs_to_jiffies(cur_roc->duration) -
2518 now;
eaa336b0
EP		 2519
2520 if (WARN_ON(!cur_roc->started || !cur_roc->hw_begun))
2521 return false;
2522
252ec2b3
JB		 2523 /* if it doesn't fit entirely, schedule a new one */
2524 if (new_roc->duration > jiffies_to_msecs(remaining))
eaa336b0
EP		 2525 return false;
2526
2527 ieee80211_handle_roc_started(new_roc);
2528
252ec2b3
JB		 2529 /* add to dependents so we send the expired event properly */
2530 list_add_tail(&new_roc->list, &cur_roc->dependents);
eaa336b0
EP		 2531 return true;
2532}
2533
3b79af97
JB		 2534static u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
2535{
2536 lockdep_assert_held(&local->mtx);
2537
2538 local->roc_cookie_counter++;
2539
2540 /* wow, you wrapped 64 bits ... more likely a bug */
2541 if (WARN_ON(local->roc_cookie_counter == 0))
2542 local->roc_cookie_counter++;
2543
2544 return local->roc_cookie_counter;
2545}
2546
2eb278e0
JB		 2547static int ieee80211_start_roc_work(struct ieee80211_local *local,
2548 struct ieee80211_sub_if_data *sdata,
2549 struct ieee80211_channel *channel,
2eb278e0 2550 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2551 struct sk_buff *txskb,
2552 enum ieee80211_roc_type type)
2eb278e0
JB		 2553{
2554 struct ieee80211_roc_work *roc, *tmp;
2555 bool queued = false;
21f83589 2556 int ret;
21f83589
JB		 2557
2558 lockdep_assert_held(&local->mtx);
2559
fe57d9f5
JB		 2560 if (local->use_chanctx && !local->ops->remain_on_channel)
2561 return -EOPNOTSUPP;
2562
2eb278e0
JB		 2563 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2564 if (!roc)
2565 return -ENOMEM;
2566
2fae062e
IP		 2567 /*
2568 * If the duration is zero, then the driver
2569 * wouldn't actually do anything. Set it to
2570 * 10 for now.
2571 *
2572 * TODO: cancel the off-channel operation
2573 * when we get the SKB's TX status and
2574 * the wait time was zero before.
2575 */
2576 if (!duration)
2577 duration = 10;
2578
2eb278e0 2579 roc->chan = channel;
2eb278e0
JB		 2580 roc->duration = duration;
2581 roc->req_duration = duration;
2582 roc->frame = txskb;
d339d5ca 2583 roc->type = type;
2eb278e0
JB		 2584 roc->sdata = sdata;
2585 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2586 INIT_LIST_HEAD(&roc->dependents);
2587
2f617435
EP		 2588 /*
2589 * cookie is either the roc cookie (for normal roc)
2590 * or the SKB (for mgmt TX)
2591 */
2592 if (!txskb) {
3b79af97 2593 roc->cookie = ieee80211_mgmt_tx_cookie(local);
2f617435
EP		 2594 *cookie = roc->cookie;
2595 } else {
3b79af97 2596 roc->mgmt_tx_cookie = *cookie;
2f617435
EP		 2597 }
2598
2eb278e0 2599 /* if there's one pending or we're scanning, queue this one */
164eb02d 2600 if (!list_empty(&local->roc_list) ||
5cbc95a7 2601 local->scanning || ieee80211_is_radar_required(local))
2eb278e0
JB		 2602 goto out_check_combine;
2603
2604 /* if not HW assist, just queue & schedule work */
2605 if (!local->ops->remain_on_channel) {
2606 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2607 goto out_queue;
2608 }
2609
2610 /* otherwise actually kick it off here (for error handling) */
2611
d339d5ca 2612 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2613 if (ret) {
2eb278e0
JB		 2614 kfree(roc);
2615 return ret;
21f83589
JB		 2616 }
2617
2eb278e0
JB		 2618 roc->started = true;
2619 goto out_queue;
2620
2621 out_check_combine:
2622 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2623 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2624 continue;
2625
2626 /*
2627 * Extend this ROC if possible:
2628 *
2629 * If it hasn't started yet, just increase the duration
2630 * and add the new one to the list of dependents.
d339d5ca
IP		 2631 * If the type of the new ROC has higher priority, modify the
2632 * type of the previous one to match that of the new one.
2eb278e0
JB		 2633 */
2634 if (!tmp->started) {
2635 list_add_tail(&roc->list, &tmp->dependents);
2636 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2637 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2638 queued = true;
2639 break;
2640 }
2641
2642 /* If it has already started, it's more difficult ... */
2643 if (local->ops->remain_on_channel) {
2eb278e0
JB		 2644 /*
2645 * In the offloaded ROC case, if it hasn't begun, add
2646 * this new one to the dependent list to be handled
d339d5ca 2647 * when the master one begins. If it has begun,
252ec2b3
JB		 2648 * check if it fits entirely within the existing one,
2649 * in which case it will just be dependent as well.
2650 * Otherwise, schedule it by itself.
2eb278e0
JB		 2651 */
2652 if (!tmp->hw_begun) {
2653 list_add_tail(&roc->list, &tmp->dependents);
2654 queued = true;
2655 break;
2656 }
2657
eaa336b0 2658 if (ieee80211_coalesce_started_roc(local, roc, tmp))
2eb278e0 2659 queued = true;
2eb278e0
JB		 2660 } else if (del_timer_sync(&tmp->work.timer)) {
2661 unsigned long new_end;
2662
2663 /*
2664 * In the software ROC case, cancel the timer, if
2665 * that fails then the finish work is already
2666 * queued/pending and thus we queue the new ROC
2667 * normally, if that succeeds then we can extend
2668 * the timer duration and TX the frame (if any.)
2669 */
2670
2671 list_add_tail(&roc->list, &tmp->dependents);
2672 queued = true;
2673
2674 new_end = jiffies + msecs_to_jiffies(roc->duration);
2675
2676 /* ok, it was started & we canceled timer */
2677 if (time_after(new_end, tmp->work.timer.expires))
2678 mod_timer(&tmp->work.timer, new_end);
2679 else
2680 add_timer(&tmp->work.timer);
2681
2682 ieee80211_handle_roc_started(roc);
2683 }
2684 break;
2685 }
2686
2687 out_queue:
2688 if (!queued)
2689 list_add_tail(&roc->list, &local->roc_list);
2690
2eb278e0 2691 return 0;
21f83589
JB		 2692}
2693
b8bc4b0a 2694static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2695 struct wireless_dev *wdev,
b8bc4b0a 2696 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2697 unsigned int duration,
2698 u64 *cookie)
2699{
71bbc994 2700 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2701 struct ieee80211_local *local = sdata->local;
2eb278e0 2702 int ret;
21f83589 2703
2eb278e0 2704 mutex_lock(&local->mtx);
42d97a59 2705 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2706 duration, cookie, NULL,
2707 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2708 mutex_unlock(&local->mtx);
b8bc4b0a 2709
2eb278e0 2710 return ret;
b8bc4b0a
JB		 2711}
2712
2eb278e0
JB		 2713static int ieee80211_cancel_roc(struct ieee80211_local *local,
2714 u64 cookie, bool mgmt_tx)
21f83589 2715{
2eb278e0 2716 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2717 int ret;
2718
2eb278e0
JB		 2719 mutex_lock(&local->mtx);
2720 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2721 struct ieee80211_roc_work *dep, *tmp2;
2722
2723 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2724 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2725 continue;
2726 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2727 continue;
2728 /* found dependent item -- just remove it */
2729 list_del(&dep->list);
2730 mutex_unlock(&local->mtx);
2731
3fbd45ca 2732 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2733 return 0;
2734 }
2735
50febf6a 2736 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2737 continue;
2738 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2739 continue;
21f83589 2740
2eb278e0
JB		 2741 found = roc;
2742 break;
2743 }
21f83589 2744
2eb278e0
JB		 2745 if (!found) {
2746 mutex_unlock(&local->mtx);
2747 return -ENOENT;
2748 }
21f83589 2749
e979e33c
JB		 2750 /*
2751 * We found the item to cancel, so do that. Note that it
2752 * may have dependents, which we also cancel (and send
2753 * the expired signal for.) Not doing so would be quite
2754 * tricky here, but we may need to fix it later.
2755 */
2756
2eb278e0
JB		 2757 if (local->ops->remain_on_channel) {
2758 if (found->started) {
2759 ret = drv_cancel_remain_on_channel(local);
2760 if (WARN_ON_ONCE(ret)) {
2761 mutex_unlock(&local->mtx);
2762 return ret;
2763 }
2764 }
21f83589 2765
2eb278e0 2766 list_del(&found->list);
21f83589 2767
0f6b3f59
JB		 2768 if (found->started)
2769 ieee80211_start_next_roc(local);
2eb278e0 2770 mutex_unlock(&local->mtx);
21f83589 2771
3fbd45ca 2772 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2773 } else {
2774 /* work may be pending so use it all the time */
2775 found->abort = true;
2776 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2777
21f83589
JB		 2778 mutex_unlock(&local->mtx);
2779
2eb278e0
JB		 2780 /* work will clean up etc */
2781 flush_delayed_work(&found->work);
3fbd45ca
JB		 2782 WARN_ON(!found->to_be_freed);
2783 kfree(found);
21f83589 2784 }
b8bc4b0a 2785
2eb278e0 2786 return 0;
b8bc4b0a
JB		 2787}
2788
2eb278e0 2789static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2790 struct wireless_dev *wdev,
2eb278e0 2791 u64 cookie)
f30221e4 2792{
71bbc994 2793 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2794 struct ieee80211_local *local = sdata->local;
f30221e4 2795
2eb278e0 2796 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2797}
2798
164eb02d
SW		 2799static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2800 struct net_device *dev,
31559f35
JD		 2801 struct cfg80211_chan_def *chandef,
2802 u32 cac_time_ms)
164eb02d
SW		 2803{
2804 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2805 struct ieee80211_local *local = sdata->local;
164eb02d
SW		 2806 int err;
2807
34a3740d
JB		 2808 mutex_lock(&local->mtx);
2809 if (!list_empty(&local->roc_list) || local->scanning) {
2810 err = -EBUSY;
2811 goto out_unlock;
2812 }
164eb02d
SW		 2813
2814 /* whatever, but channel contexts should not complain about that one */
2815 sdata->smps_mode = IEEE80211_SMPS_OFF;
2816 sdata->needed_rx_chains = local->rx_chains;
164eb02d 2817
164eb02d
SW		 2818 err = ieee80211_vif_use_channel(sdata, chandef,
2819 IEEE80211_CHANCTX_SHARED);
164eb02d 2820 if (err)
34a3740d 2821 goto out_unlock;
164eb02d 2822
164eb02d 2823 ieee80211_queue_delayed_work(&sdata->local->hw,
31559f35
JD		 2824 &sdata->dfs_cac_timer_work,
2825 msecs_to_jiffies(cac_time_ms));
164eb02d 2826
34a3740d
JB		 2827 out_unlock:
2828 mutex_unlock(&local->mtx);
2829 return err;
164eb02d
SW		 2830}
2831
73da7d5b
SW		 2832static struct cfg80211_beacon_data *
2833cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2834{
2835 struct cfg80211_beacon_data *new_beacon;
2836 u8 *pos;
2837 int len;
2838
2839 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2840 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2841 beacon->probe_resp_len;
2842
2843 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2844 if (!new_beacon)
2845 return NULL;
2846
2847 pos = (u8 *)(new_beacon + 1);
2848 if (beacon->head_len) {
2849 new_beacon->head_len = beacon->head_len;
2850 new_beacon->head = pos;
2851 memcpy(pos, beacon->head, beacon->head_len);
2852 pos += beacon->head_len;
2853 }
2854 if (beacon->tail_len) {
2855 new_beacon->tail_len = beacon->tail_len;
2856 new_beacon->tail = pos;
2857 memcpy(pos, beacon->tail, beacon->tail_len);
2858 pos += beacon->tail_len;
2859 }
2860 if (beacon->beacon_ies_len) {
2861 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2862 new_beacon->beacon_ies = pos;
2863 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2864 pos += beacon->beacon_ies_len;
2865 }
2866 if (beacon->proberesp_ies_len) {
2867 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2868 new_beacon->proberesp_ies = pos;
2869 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2870 pos += beacon->proberesp_ies_len;
2871 }
2872 if (beacon->assocresp_ies_len) {
2873 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2874 new_beacon->assocresp_ies = pos;
2875 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2876 pos += beacon->assocresp_ies_len;
2877 }
2878 if (beacon->probe_resp_len) {
2879 new_beacon->probe_resp_len = beacon->probe_resp_len;
2880 beacon->probe_resp = pos;
2881 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2882 pos += beacon->probe_resp_len;
2883 }
2884
2885 return new_beacon;
2886}
2887
66e01cf9 2888void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2889{
66e01cf9 2890 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2891
66e01cf9
LC		 2892 ieee80211_queue_work(&sdata->local->hw,
2893 &sdata->csa_finalize_work);
2894}
2895EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 2896
66199506
MK		 2897static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2898 u32 *changed)
66e01cf9 2899{
66199506 2900 int err;
7578d575 2901
cd7760e6
SW		 2902 switch (sdata->vif.type) {
2903 case NL80211_IFTYPE_AP:
af296bdb
MK		 2904 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2905 NULL);
97518af1
MK		 2906 kfree(sdata->u.ap.next_beacon);
2907 sdata->u.ap.next_beacon = NULL;
2908
cd7760e6 2909 if (err < 0)
66199506
MK		 2910 return err;
2911 *changed |= err;
cd7760e6
SW		 2912 break;
2913 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 2914 err = ieee80211_ibss_finish_csa(sdata);
2915 if (err < 0)
66199506
MK		 2916 return err;
2917 *changed |= err;
cd7760e6 2918 break;
b8456a14
CYY		 2919#ifdef CONFIG_MAC80211_MESH
2920 case NL80211_IFTYPE_MESH_POINT:
2921 err = ieee80211_mesh_finish_csa(sdata);
2922 if (err < 0)
66199506
MK		 2923 return err;
2924 *changed |= err;
b8456a14
CYY		 2925 break;
2926#endif
cd7760e6
SW		 2927 default:
2928 WARN_ON(1);
66199506
MK		 2929 return -EINVAL;
2930 }
2931
2932 return 0;
2933}
2934
cf8767dd 2935static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
66199506
MK		 2936{
2937 struct ieee80211_local *local = sdata->local;
2938 u32 changed = 0;
2939 int err;
2940
2941 sdata_assert_lock(sdata);
2942 lockdep_assert_held(&local->mtx);
03078de4 2943 lockdep_assert_held(&local->chanctx_mtx);
66199506 2944
03078de4
MK		 2945 /*
2946 * using reservation isn't immediate as it may be deferred until later
2947 * with multi-vif. once reservation is complete it will re-schedule the
2948 * work with no reserved_chanctx so verify chandef to check if it
2949 * completed successfully
2950 */
66199506 2951
03078de4
MK		 2952 if (sdata->reserved_chanctx) {
2953 /*
2954 * with multi-vif csa driver may call ieee80211_csa_finish()
2955 * many times while waiting for other interfaces to use their
2956 * reservations
2957 */
2958 if (sdata->reserved_ready)
2959 return 0;
2960
408b18ab 2961 return ieee80211_vif_use_reserved_context(sdata);
cd7760e6 2962 }
73da7d5b 2963
03078de4
MK		 2964 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2965 &sdata->csa_chandef))
2966 return -EINVAL;
2967
66199506
MK		 2968 sdata->vif.csa_active = false;
2969
2970 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2971 if (err)
cf8767dd 2972 return err;
faf046e7 2973
66199506 2974 ieee80211_bss_info_change_notify(sdata, changed);
59af6928 2975
a46992b4
LC		 2976 if (sdata->csa_block_tx) {
2977 ieee80211_wake_vif_queues(local, sdata,
2978 IEEE80211_QUEUE_STOP_REASON_CSA);
2979 sdata->csa_block_tx = false;
2980 }
cf8767dd 2981
f1d65583
LC		 2982 err = drv_post_channel_switch(sdata);
2983 if (err)
2984 return err;
2985
2986 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2987
cf8767dd
MK		 2988 return 0;
2989}
2990
2991static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2992{
2993 if (__ieee80211_csa_finalize(sdata)) {
2994 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2995 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2996 GFP_KERNEL);
2997 }
66e01cf9
LC		 2998}
2999
3000void ieee80211_csa_finalize_work(struct work_struct *work)
3001{
3002 struct ieee80211_sub_if_data *sdata =
3003 container_of(work, struct ieee80211_sub_if_data,
3004 csa_finalize_work);
59af6928 3005 struct ieee80211_local *local = sdata->local;
66e01cf9
LC		 3006
3007 sdata_lock(sdata);
59af6928 3008 mutex_lock(&local->mtx);
03078de4 3009 mutex_lock(&local->chanctx_mtx);
59af6928 3010
66e01cf9
LC		 3011 /* AP might have been stopped while waiting for the lock. */
3012 if (!sdata->vif.csa_active)
3013 goto unlock;
3014
3015 if (!ieee80211_sdata_running(sdata))
3016 goto unlock;
3017
3018 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 3019
3020unlock:
03078de4 3021 mutex_unlock(&local->chanctx_mtx);
59af6928 3022 mutex_unlock(&local->mtx);
e487eaeb 3023 sdata_unlock(sdata);
73da7d5b
SW		 3024}
3025
37fa2bdd
MK		 3026static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3027 struct cfg80211_csa_settings *params,
3028 u32 *changed)
73da7d5b 3029{
af296bdb 3030 struct ieee80211_csa_settings csa = {};
37fa2bdd 3031 int err;
73da7d5b 3032
73da7d5b
SW		 3033 switch (sdata->vif.type) {
3034 case NL80211_IFTYPE_AP:
cd7760e6
SW		 3035 sdata->u.ap.next_beacon =
3036 cfg80211_beacon_dup(&params->beacon_after);
3037 if (!sdata->u.ap.next_beacon)
3038 return -ENOMEM;
3039
66e01cf9
LC		 3040 /*
3041 * With a count of 0, we don't have to wait for any
3042 * TBTT before switching, so complete the CSA
3043 * immediately. In theory, with a count == 1 we
3044 * should delay the switch until just before the next
3045 * TBTT, but that would complicate things so we switch
3046 * immediately too. If we would delay the switch
3047 * until the next TBTT, we would have to set the probe
3048 * response here.
3049 *
3050 * TODO: A channel switch with count <= 1 without
3051 * sending a CSA action frame is kind of useless,
3052 * because the clients won't know we're changing
3053 * channels. The action frame must be implemented
3054 * either here or in the userspace.
3055 */
3056 if (params->count <= 1)
3057 break;
3058
0d06d9ba
AO		 3059 if ((params->n_counter_offsets_beacon >
3060 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3061 (params->n_counter_offsets_presp >
3062 IEEE80211_MAX_CSA_COUNTERS_NUM))
3063 return -EINVAL;
9a774c78 3064
af296bdb
MK		 3065 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3066 csa.counter_offsets_presp = params->counter_offsets_presp;
3067 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3068 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3069 csa.count = params->count;
9a774c78 3070
af296bdb 3071 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
cd7760e6
SW		 3072 if (err < 0) {
3073 kfree(sdata->u.ap.next_beacon);
3074 return err;
3075 }
37fa2bdd 3076 *changed |= err;
66e01cf9 3077
cd7760e6
SW		 3078 break;
3079 case NL80211_IFTYPE_ADHOC:
3080 if (!sdata->vif.bss_conf.ibss_joined)
3081 return -EINVAL;
3082
3083 if (params->chandef.width != sdata->u.ibss.chandef.width)
3084 return -EINVAL;
3085
3086 switch (params->chandef.width) {
3087 case NL80211_CHAN_WIDTH_40:
3088 if (cfg80211_get_chandef_type(&params->chandef) !=
3089 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3090 return -EINVAL;
3091 case NL80211_CHAN_WIDTH_5:
3092 case NL80211_CHAN_WIDTH_10:
3093 case NL80211_CHAN_WIDTH_20_NOHT:
3094 case NL80211_CHAN_WIDTH_20:
3095 break;
3096 default:
3097 return -EINVAL;
3098 }
3099
3100 /* changes into another band are not supported */
3101 if (sdata->u.ibss.chandef.chan->band !=
3102 params->chandef.chan->band)
3103 return -EINVAL;
3104
66e01cf9
LC		 3105 /* see comments in the NL80211_IFTYPE_AP block */
3106 if (params->count > 1) {
3107 err = ieee80211_ibss_csa_beacon(sdata, params);
3108 if (err < 0)
3109 return err;
37fa2bdd 3110 *changed |= err;
66e01cf9
LC		 3111 }
3112
3113 ieee80211_send_action_csa(sdata, params);
3114
73da7d5b 3115 break;
c6da674a 3116#ifdef CONFIG_MAC80211_MESH
37fa2bdd
MK		 3117 case NL80211_IFTYPE_MESH_POINT: {
3118 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a 3119
c6da674a
CYY		 3120 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3121 return -EINVAL;
3122
3123 /* changes into another band are not supported */
3124 if (sdata->vif.bss_conf.chandef.chan->band !=
3125 params->chandef.chan->band)
3126 return -EINVAL;
3127
c782bf8c 3128 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 3129 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 3130 if (!ifmsh->pre_value)
3131 ifmsh->pre_value = 1;
3132 else
3133 ifmsh->pre_value++;
3134 }
0cb4d4dc 3135
66e01cf9
LC		 3136 /* see comments in the NL80211_IFTYPE_AP block */
3137 if (params->count > 1) {
3138 err = ieee80211_mesh_csa_beacon(sdata, params);
3139 if (err < 0) {
3140 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3141 return err;
3142 }
37fa2bdd 3143 *changed |= err;
3f718fd8 3144 }
66e01cf9
LC		 3145
3146 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3147 ieee80211_send_action_csa(sdata, params);
3148
c6da674a 3149 break;
37fa2bdd 3150 }
c6da674a 3151#endif
73da7d5b
SW		 3152 default:
3153 return -EOPNOTSUPP;
3154 }
3155
37fa2bdd
MK		 3156 return 0;
3157}
3158
f29f58a9
LC		 3159static int
3160__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3161 struct cfg80211_csa_settings *params)
37fa2bdd
MK		 3162{
3163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3164 struct ieee80211_local *local = sdata->local;
6d027bcc 3165 struct ieee80211_channel_switch ch_switch;
2b32713d 3166 struct ieee80211_chanctx_conf *conf;
37fa2bdd 3167 struct ieee80211_chanctx *chanctx;
b08cc24e
JB		 3168 u32 changed = 0;
3169 int err;
37fa2bdd
MK		 3170
3171 sdata_assert_lock(sdata);
59af6928 3172 lockdep_assert_held(&local->mtx);
37fa2bdd
MK		 3173
3174 if (!list_empty(&local->roc_list) || local->scanning)
3175 return -EBUSY;
3176
3177 if (sdata->wdev.cac_started)
3178 return -EBUSY;
3179
3180 if (cfg80211_chandef_identical(&params->chandef,
3181 &sdata->vif.bss_conf.chandef))
3182 return -EINVAL;
3183
03078de4
MK		 3184 /* don't allow another channel switch if one is already active. */
3185 if (sdata->vif.csa_active)
3186 return -EBUSY;
3187
2b32713d
MK		 3188 mutex_lock(&local->chanctx_mtx);
3189 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3190 lockdep_is_held(&local->chanctx_mtx));
3191 if (!conf) {
03078de4
MK		 3192 err = -EBUSY;
3193 goto out;
37fa2bdd
MK		 3194 }
3195
2b32713d 3196 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
03078de4
MK		 3197 if (!chanctx) {
3198 err = -EBUSY;
3199 goto out;
37fa2bdd 3200 }
37fa2bdd 3201
000baa5d
LC		 3202 ch_switch.timestamp = 0;
3203 ch_switch.device_timestamp = 0;
3204 ch_switch.block_tx = params->block_tx;
3205 ch_switch.chandef = params->chandef;
3206 ch_switch.count = params->count;
3207
6d027bcc
LC		 3208 err = drv_pre_channel_switch(sdata, &ch_switch);
3209 if (err)
3210 goto out;
3211
03078de4
MK		 3212 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3213 chanctx->mode,
3214 params->radar_required);
3215 if (err)
3216 goto out;
37fa2bdd 3217
03078de4
MK		 3218 /* if reservation is invalid then this will fail */
3219 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3220 if (err) {
3221 ieee80211_vif_unreserve_chanctx(sdata);
3222 goto out;
3223 }
37fa2bdd
MK		 3224
3225 err = ieee80211_set_csa_beacon(sdata, params, &changed);
03078de4
MK		 3226 if (err) {
3227 ieee80211_vif_unreserve_chanctx(sdata);
3228 goto out;
3229 }
37fa2bdd 3230
33787fc4 3231 sdata->csa_chandef = params->chandef;
59af6928 3232 sdata->csa_block_tx = params->block_tx;
73da7d5b
SW		 3233 sdata->vif.csa_active = true;
3234
59af6928 3235 if (sdata->csa_block_tx)
a46992b4
LC		 3236 ieee80211_stop_vif_queues(local, sdata,
3237 IEEE80211_QUEUE_STOP_REASON_CSA);
59af6928 3238
2f457293
LC		 3239 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3240 params->count);
3241
66e01cf9
LC		 3242 if (changed) {
3243 ieee80211_bss_info_change_notify(sdata, changed);
3244 drv_channel_switch_beacon(sdata, &params->chandef);
3245 } else {
3246 /* if the beacon didn't change, we can finalize immediately */
3247 ieee80211_csa_finalize(sdata);
3248 }
73da7d5b 3249
03078de4
MK		 3250out:
3251 mutex_unlock(&local->chanctx_mtx);
3252 return err;
73da7d5b
SW		 3253}
3254
59af6928
MK		 3255int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3256 struct cfg80211_csa_settings *params)
3257{
3258 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3259 struct ieee80211_local *local = sdata->local;
3260 int err;
3261
3262 mutex_lock(&local->mtx);
3263 err = __ieee80211_channel_switch(wiphy, dev, params);
3264 mutex_unlock(&local->mtx);
3265
3266 return err;
3267}
3268
3b79af97
JB		 3269static struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local,
3270 struct sk_buff *skb, u64 *cookie,
3271 gfp_t gfp)
3272{
3273 unsigned long spin_flags;
3274 struct sk_buff *ack_skb;
3275 int id;
3276
3277 ack_skb = skb_copy(skb, gfp);
3278 if (!ack_skb)
3279 return ERR_PTR(-ENOMEM);
3280
3281 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3282 id = idr_alloc(&local->ack_status_frames, ack_skb,
3283 1, 0x10000, GFP_ATOMIC);
3284 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3285
3286 if (id < 0) {
3287 kfree_skb(ack_skb);
3288 return ERR_PTR(-ENOMEM);
3289 }
3290
3291 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3292
3293 *cookie = ieee80211_mgmt_tx_cookie(local);
3294 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3295
3296 return ack_skb;
3297}
3298
71bbc994 3299static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3300 struct cfg80211_mgmt_tx_params *params,
3301 u64 *cookie)
026331c4 3302{
71bbc994 3303 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d 3304 struct ieee80211_local *local = sdata->local;
b2eb0ee6 3305 struct sk_buff *skb, *ack_skb;
9d38d85d 3306 struct sta_info *sta;
b176e629 3307 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3308 bool need_offchan = false;
e247bd90 3309 u32 flags;
2eb278e0 3310 int ret;
387910cc 3311 u8 *data;
f7ca38df 3312
b176e629 3313 if (params->dont_wait_for_ack)
e247bd90
JB		 3314 flags = IEEE80211_TX_CTL_NO_ACK;
3315 else
3316 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3317 IEEE80211_TX_CTL_REQ_TX_STATUS;
3318
b176e629 3319 if (params->no_cck)
aad14ceb
RM		 3320 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3321
9d38d85d
JB		 3322 switch (sdata->vif.type) {
3323 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3324 if (!sdata->vif.bss_conf.ibss_joined)
3325 need_offchan = true;
3326 /* fall through */
3327#ifdef CONFIG_MAC80211_MESH
3328 case NL80211_IFTYPE_MESH_POINT:
3329 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3330 !sdata->u.mesh.mesh_id_len)
3331 need_offchan = true;
3332 /* fall through */
3333#endif
663fcafd
JB		 3334 case NL80211_IFTYPE_AP:
3335 case NL80211_IFTYPE_AP_VLAN:
3336 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3337 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3338 !ieee80211_vif_is_mesh(&sdata->vif) &&
3339 !rcu_access_pointer(sdata->bss->beacon))
3340 need_offchan = true;
663fcafd 3341 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3342 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3343 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3344 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3345 break;
3346 rcu_read_lock();
3347 sta = sta_info_get(sdata, mgmt->da);
3348 rcu_read_unlock();
3349 if (!sta)
3350 return -ENOLINK;
3351 break;
3352 case NL80211_IFTYPE_STATION:
663fcafd 3353 case NL80211_IFTYPE_P2P_CLIENT:
b8e69d51
MG		 3354 sdata_lock(sdata);
3355 if (!sdata->u.mgd.associated ||
3356 (params->offchan && params->wait &&
3357 local->ops->remain_on_channel &&
3358 memcmp(sdata->u.mgd.associated->bssid,
3359 mgmt->bssid, ETH_ALEN)))
2eb278e0 3360 need_offchan = true;
b8e69d51 3361 sdata_unlock(sdata);
9d38d85d 3362 break;
f142c6b9
JB		 3363 case NL80211_IFTYPE_P2P_DEVICE:
3364 need_offchan = true;
3365 break;
9d38d85d
JB		 3366 default:
3367 return -EOPNOTSUPP;
3368 }
3369
f7aeb6fb
AQ		 3370 /* configurations requiring offchan cannot work if no channel has been
3371 * specified
3372 */
b176e629 3373 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3374 return -EINVAL;
3375
2eb278e0
JB		 3376 mutex_lock(&local->mtx);
3377
3378 /* Check if the operating channel is the requested channel */
3379 if (!need_offchan) {
55de908a
JB		 3380 struct ieee80211_chanctx_conf *chanctx_conf;
3381
3382 rcu_read_lock();
3383 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3384
f7aeb6fb 3385 if (chanctx_conf) {
b176e629
AO		 3386 need_offchan = params->chan &&
3387 (params->chan !=
3388 chanctx_conf->def.chan);
3389 } else if (!params->chan) {
f7aeb6fb
AQ		 3390 ret = -EINVAL;
3391 rcu_read_unlock();
3392 goto out_unlock;
3393 } else {
2eb278e0 3394 need_offchan = true;
f7aeb6fb 3395 }
55de908a 3396 rcu_read_unlock();
2eb278e0
JB		 3397 }
3398
b176e629 3399 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3400 ret = -EBUSY;
3401 goto out_unlock;
3402 }
3403
b176e629 3404 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3405 if (!skb) {
3406 ret = -ENOMEM;
3407 goto out_unlock;
3408 }
9d38d85d
JB		 3409 skb_reserve(skb, local->hw.extra_tx_headroom);
3410
387910cc
AO		 3411 data = skb_put(skb, params->len);
3412 memcpy(data, params->buf, params->len);
3413
3414 /* Update CSA counters */
3415 if (sdata->vif.csa_active &&
3416 (sdata->vif.type == NL80211_IFTYPE_AP ||
8df734e8 3417 sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
387910cc
AO		 3418 sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3419 params->n_csa_offsets) {
3420 int i;
af296bdb 3421 struct beacon_data *beacon = NULL;
387910cc 3422
af296bdb
MK		 3423 rcu_read_lock();
3424
3425 if (sdata->vif.type == NL80211_IFTYPE_AP)
3426 beacon = rcu_dereference(sdata->u.ap.beacon);
3427 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3428 beacon = rcu_dereference(sdata->u.ibss.presp);
3429 else if (ieee80211_vif_is_mesh(&sdata->vif))
3430 beacon = rcu_dereference(sdata->u.mesh.beacon);
3431
3432 if (beacon)
3433 for (i = 0; i < params->n_csa_offsets; i++)
3434 data[params->csa_offsets[i]] =
3435 beacon->csa_current_counter;
3436
3437 rcu_read_unlock();
387910cc 3438 }
9d38d85d
JB		 3439
3440 IEEE80211_SKB_CB(skb)->flags = flags;
3441
3442 skb->dev = sdata->dev;
9d38d85d 3443
b2eb0ee6 3444 if (!params->dont_wait_for_ack) {
3b79af97 3445 /* make a copy to preserve the frame contents
b2eb0ee6
JB		 3446 * in case of encryption.
3447 */
3b79af97
JB		 3448 ack_skb = ieee80211_make_ack_skb(local, skb, cookie,
3449 GFP_KERNEL);
3450 if (IS_ERR(ack_skb)) {
3451 ret = PTR_ERR(ack_skb);
b2eb0ee6
JB		 3452 kfree_skb(skb);
3453 goto out_unlock;
3454 }
b2eb0ee6 3455 } else {
c1df932c
JB		 3456 /* Assign a dummy non-zero cookie, it's not sent to
3457 * userspace in this case but we rely on its value
3458 * internally in the need_offchan case to distinguish
3459 * mgmt-tx from remain-on-channel.
3460 */
3461 *cookie = 0xffffffff;
b2eb0ee6
JB		 3462 }
3463
2eb278e0 3464 if (!need_offchan) {
f30221e4 3465 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3466 ret = 0;
3467 goto out_unlock;
f30221e4
JB		 3468 }
3469
6c17b77b
SF		 3470 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3471 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
30686bf7 3472 if (ieee80211_hw_check(&local->hw, QUEUE_CONTROL))
2eb278e0
JB		 3473 IEEE80211_SKB_CB(skb)->hw_queue =
3474 local->hw.offchannel_tx_hw_queue;
f30221e4 3475
2eb278e0 3476 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3477 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3478 params->wait, cookie, skb,
d339d5ca 3479 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3480 if (ret)
3481 kfree_skb(skb);
3482 out_unlock:
3483 mutex_unlock(&local->mtx);
3484 return ret;
026331c4
JM		 3485}
3486
f30221e4 3487static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3488 struct wireless_dev *wdev,
f30221e4
JB		 3489 u64 cookie)
3490{
71bbc994 3491 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3492
2eb278e0 3493 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3494}
3495
7be5086d 3496static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3497 struct wireless_dev *wdev,
7be5086d
JB		 3498 u16 frame_type, bool reg)
3499{
3500 struct ieee80211_local *local = wiphy_priv(wiphy);
1b09b556 3501 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7be5086d 3502
6abe0563 3503 switch (frame_type) {
6abe0563 3504 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
1b09b556 3505 if (reg) {
6abe0563 3506 local->probe_req_reg++;
1b09b556
AO		 3507 sdata->vif.probe_req_reg++;
3508 } else {
3509 if (local->probe_req_reg)
3510 local->probe_req_reg--;
3511
3512 if (sdata->vif.probe_req_reg)
3513 sdata->vif.probe_req_reg--;
3514 }
7be5086d 3515
35f5149e
FF		 3516 if (!local->open_count)
3517 break;
3518
1b09b556
AO		 3519 if (sdata->vif.probe_req_reg == 1)
3520 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3521 FIF_PROBE_REQ);
3522 else if (sdata->vif.probe_req_reg == 0)
3523 drv_config_iface_filter(local, sdata, 0,
3524 FIF_PROBE_REQ);
3525
3526 ieee80211_configure_filter(local);
6abe0563
WH		 3527 break;
3528 default:
3529 break;
3530 }
7be5086d
JB		 3531}
3532
15d96753
BR		 3533static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3534{
3535 struct ieee80211_local *local = wiphy_priv(wiphy);
3536
3537 if (local->started)
3538 return -EOPNOTSUPP;
3539
3540 return drv_set_antenna(local, tx_ant, rx_ant);
3541}
3542
3543static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3544{
3545 struct ieee80211_local *local = wiphy_priv(wiphy);
3546
3547 return drv_get_antenna(local, tx_ant, rx_ant);
3548}
3549
c68f4b89
JB		 3550static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3551 struct net_device *dev,
3552 struct cfg80211_gtk_rekey_data *data)
3553{
3554 struct ieee80211_local *local = wiphy_priv(wiphy);
3555 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3556
3557 if (!local->ops->set_rekey_data)
3558 return -EOPNOTSUPP;
3559
3560 drv_set_rekey_data(local, sdata, data);
3561
3562 return 0;
3563}
3564
06500736
JB		 3565static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3566 const u8 *peer, u64 *cookie)
3567{
3568 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3569 struct ieee80211_local *local = sdata->local;
3570 struct ieee80211_qos_hdr *nullfunc;
3b79af97 3571 struct sk_buff *skb, *ack_skb;
06500736
JB		 3572 int size = sizeof(*nullfunc);
3573 __le16 fc;
3574 bool qos;
3575 struct ieee80211_tx_info *info;
3576 struct sta_info *sta;
55de908a
JB		 3577 struct ieee80211_chanctx_conf *chanctx_conf;
3578 enum ieee80211_band band;
3b79af97
JB		 3579 int ret;
3580
3581 /* the lock is needed to assign the cookie later */
3582 mutex_lock(&local->mtx);
06500736
JB		 3583
3584 rcu_read_lock();
55de908a
JB		 3585 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3586 if (WARN_ON(!chanctx_conf)) {
3b79af97
JB		 3587 ret = -EINVAL;
3588 goto unlock;
55de908a 3589 }
4bf88530 3590 band = chanctx_conf->def.chan->band;
03bb7f42 3591 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3592 if (sta) {
a74a8c84 3593 qos = sta->sta.wme;
b4487c2d 3594 } else {
3b79af97
JB		 3595 ret = -ENOLINK;
3596 goto unlock;
b4487c2d 3597 }
06500736
JB		 3598
3599 if (qos) {
3600 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3601 IEEE80211_STYPE_QOS_NULLFUNC |
3602 IEEE80211_FCTL_FROMDS);
3603 } else {
3604 size -= 2;
3605 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3606 IEEE80211_STYPE_NULLFUNC |
3607 IEEE80211_FCTL_FROMDS);
3608 }
3609
3610 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a 3611 if (!skb) {
3b79af97
JB		 3612 ret = -ENOMEM;
3613 goto unlock;
55de908a 3614 }
06500736
JB		 3615
3616 skb->dev = dev;
3617
3618 skb_reserve(skb, local->hw.extra_tx_headroom);
3619
3620 nullfunc = (void *) skb_put(skb, size);
3621 nullfunc->frame_control = fc;
3622 nullfunc->duration_id = 0;
3623 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3624 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3625 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3626 nullfunc->seq_ctrl = 0;
3627
3628 info = IEEE80211_SKB_CB(skb);
3629
3630 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3631 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
73c4e195 3632 info->band = band;
06500736
JB		 3633
3634 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3635 skb->priority = 7;
3636 if (qos)
3637 nullfunc->qos_ctrl = cpu_to_le16(7);
3638
3b79af97
JB		 3639 ack_skb = ieee80211_make_ack_skb(local, skb, cookie, GFP_ATOMIC);
3640 if (IS_ERR(ack_skb)) {
3641 kfree_skb(skb);
3642 ret = PTR_ERR(ack_skb);
3643 goto unlock;
3644 }
3645
06500736 3646 local_bh_disable();
7c10770f 3647 ieee80211_xmit(sdata, sta, skb);
06500736 3648 local_bh_enable();
3b79af97
JB		 3649
3650 ret = 0;
3651unlock:
55de908a 3652 rcu_read_unlock();
3b79af97 3653 mutex_unlock(&local->mtx);
06500736 3654
3b79af97 3655 return ret;
06500736
JB		 3656}
3657
683b6d3b
JB		 3658static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3659 struct wireless_dev *wdev,
3660 struct cfg80211_chan_def *chandef)
5b7ccaf3 3661{
55de908a 3662 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3663 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3664 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3665 int ret = -ENODATA;
55de908a
JB		 3666
3667 rcu_read_lock();
feda3027
JB		 3668 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3669 if (chanctx_conf) {
c12bc488 3670 *chandef = sdata->vif.bss_conf.chandef;
feda3027
JB		 3671 ret = 0;
3672 } else if (local->open_count > 0 &&
3673 local->open_count == local->monitors &&
3674 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3675 if (local->use_chanctx)
3676 *chandef = local->monitor_chandef;
3677 else
675a0b04 3678 *chandef = local->_oper_chandef;
683b6d3b 3679 ret = 0;
55de908a
JB		 3680 }
3681 rcu_read_unlock();
5b7ccaf3 3682
683b6d3b 3683 return ret;
5b7ccaf3
JB		 3684}
3685
6d52563f
JB		 3686#ifdef CONFIG_PM
3687static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3688{
3689 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3690}
3691#endif
3692
32db6b54
KP		 3693static int ieee80211_set_qos_map(struct wiphy *wiphy,
3694 struct net_device *dev,
3695 struct cfg80211_qos_map *qos_map)
3696{
3697 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3698 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3699
3700 if (qos_map) {
3701 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3702 if (!new_qos_map)
3703 return -ENOMEM;
3704 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3705 } else {
3706 /* A NULL qos_map was passed to disable QoS mapping */
3707 new_qos_map = NULL;
3708 }
3709
194ff52d 3710 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3711 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3712 if (old_qos_map)
3713 kfree_rcu(old_qos_map, rcu_head);
3714
3715 return 0;
3716}
3717
3b1700bd
JM		 3718static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3719 struct net_device *dev,
3720 struct cfg80211_chan_def *chandef)
3721{
3722 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3723 int ret;
3724 u32 changed = 0;
3725
3726 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3727 if (ret == 0)
3728 ieee80211_bss_info_change_notify(sdata, changed);
3729
3730 return ret;
3731}
3732
02219b3a
JB		 3733static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3734 u8 tsid, const u8 *peer, u8 up,
3735 u16 admitted_time)
3736{
3737 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3738 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3739 int ac = ieee802_1d_to_ac[up];
3740
3741 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3742 return -EOPNOTSUPP;
3743
3744 if (!(sdata->wmm_acm & BIT(up)))
3745 return -EINVAL;
3746
3747 if (ifmgd->tx_tspec[ac].admitted_time)
3748 return -EBUSY;
3749
3750 if (admitted_time) {
3751 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3752 ifmgd->tx_tspec[ac].tsid = tsid;
3753 ifmgd->tx_tspec[ac].up = up;
3754 }
3755
3756 return 0;
3757}
3758
3759static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3760 u8 tsid, const u8 *peer)
3761{
3762 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3763 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3764 struct ieee80211_local *local = wiphy_priv(wiphy);
3765 int ac;
3766
3767 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3768 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3769
3770 /* skip unused entries */
3771 if (!tx_tspec->admitted_time)
3772 continue;
3773
3774 if (tx_tspec->tsid != tsid)
3775 continue;
3776
3777 /* due to this new packets will be reassigned to non-ACM ACs */
3778 tx_tspec->up = -1;
3779
3780 /* Make sure that all packets have been sent to avoid to
3781 * restore the QoS params on packets that are still on the
3782 * queues.
3783 */
3784 synchronize_net();
3b24f4c6 3785 ieee80211_flush_queues(local, sdata, false);
02219b3a
JB		 3786
3787 /* restore the normal QoS parameters
3788 * (unconditionally to avoid races)
3789 */
3790 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3791 tx_tspec->downgraded = false;
3792 ieee80211_sta_handle_tspec_ac_params(sdata);
3793
3794 /* finally clear all the data */
3795 memset(tx_tspec, 0, sizeof(*tx_tspec));
3796
3797 return 0;
3798 }
3799
3800 return -ENOENT;
3801}
3802
8a47cea7 3803const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3804 .add_virtual_intf = ieee80211_add_iface,
3805 .del_virtual_intf = ieee80211_del_iface,
42613db7 3806 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3807 .start_p2p_device = ieee80211_start_p2p_device,
3808 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3809 .add_key = ieee80211_add_key,
3810 .del_key = ieee80211_del_key,
62da92fb 3811 .get_key = ieee80211_get_key,
e8cbb4cb 3812 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3813 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3814 .start_ap = ieee80211_start_ap,
3815 .change_beacon = ieee80211_change_beacon,
3816 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3817 .add_station = ieee80211_add_station,
3818 .del_station = ieee80211_del_station,
3819 .change_station = ieee80211_change_station,
7bbdd2d9 3820 .get_station = ieee80211_get_station,
c5dd9c2b 3821 .dump_station = ieee80211_dump_station,
1289723e 3822 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3823#ifdef CONFIG_MAC80211_MESH
3824 .add_mpath = ieee80211_add_mpath,
3825 .del_mpath = ieee80211_del_mpath,
3826 .change_mpath = ieee80211_change_mpath,
3827 .get_mpath = ieee80211_get_mpath,
3828 .dump_mpath = ieee80211_dump_mpath,
a2db2ed3
HR		 3829 .get_mpp = ieee80211_get_mpp,
3830 .dump_mpp = ieee80211_dump_mpp,
24bdd9f4
JC		 3831 .update_mesh_config = ieee80211_update_mesh_config,
3832 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3833 .join_mesh = ieee80211_join_mesh,
3834 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3835#endif
239281f8
RL		 3836 .join_ocb = ieee80211_join_ocb,
3837 .leave_ocb = ieee80211_leave_ocb,
9f1ba906 3838 .change_bss = ieee80211_change_bss,
31888487 3839 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3840 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3841 .suspend = ieee80211_suspend,
3842 .resume = ieee80211_resume,
2a519311 3843 .scan = ieee80211_scan,
79f460ca
LC		 3844 .sched_scan_start = ieee80211_sched_scan_start,
3845 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3846 .auth = ieee80211_auth,
3847 .assoc = ieee80211_assoc,
3848 .deauth = ieee80211_deauth,
3849 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3850 .join_ibss = ieee80211_join_ibss,
3851 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3852 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3853 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3854 .set_tx_power = ieee80211_set_tx_power,
3855 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3856 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3857 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3858 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3859 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3860 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3861 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3862 .remain_on_channel = ieee80211_remain_on_channel,
3863 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3864 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3865 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3866 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3867 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3868 .set_antenna = ieee80211_set_antenna,
3869 .get_antenna = ieee80211_get_antenna,
c68f4b89 3870 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3871 .tdls_oper = ieee80211_tdls_oper,
3872 .tdls_mgmt = ieee80211_tdls_mgmt,
a7a6bdd0
AN		 3873 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3874 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
06500736 3875 .probe_client = ieee80211_probe_client,
b53be792 3876 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3877#ifdef CONFIG_PM
3878 .set_wakeup = ieee80211_set_wakeup,
3879#endif
5b7ccaf3 3880 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3881 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3882 .channel_switch = ieee80211_channel_switch,
32db6b54 3883 .set_qos_map = ieee80211_set_qos_map,
3b1700bd 3884 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
02219b3a
JB		 3885 .add_tx_ts = ieee80211_add_tx_ts,
3886 .del_tx_ts = ieee80211_del_tx_ts,
f0706e82 3887};
Linux kernel - Deliverables
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