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Merge branch 'inet-frag-fixes'
[linux-2.6-block.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
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"
e0eb6859 20#include "cfg.h"
2c8dccc7 21#include "rate.h"
c5dd9c2b 22#include "mesh.h"
02219b3a 23#include "wme.h"
c5dd9c2b 24
552bff0c
JB		 25static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
26 const char *name,
6bab2e19 27 unsigned char name_assign_type,
84efbb84
JB		 28 enum nl80211_iftype type,
29 u32 *flags,
30 struct vif_params *params)
f0706e82
JB		 31{
32 struct ieee80211_local *local = wiphy_priv(wiphy);
84efbb84 33 struct wireless_dev *wdev;
8cc9a739
MW		 34 struct ieee80211_sub_if_data *sdata;
35 int err;
f0706e82 36
6bab2e19 37 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
f9e10ce4
JB		 38 if (err)
39 return ERR_PTR(err);
8cc9a739 40
f9e10ce4 41 if (type == NL80211_IFTYPE_MONITOR && flags) {
84efbb84 42 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
f9e10ce4
JB		 43 sdata->u.mntr_flags = *flags;
44 }
45
84efbb84 46 return wdev;
f0706e82
JB		 47}
48
84efbb84 49static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
f0706e82 50{
84efbb84 51 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
f0706e82 52
75636525 53 return 0;
f0706e82
JB		 54}
55
e36d56b6
JB		 56static int ieee80211_change_iface(struct wiphy *wiphy,
57 struct net_device *dev,
2ec600d6
LCC		 58 enum nl80211_iftype type, u32 *flags,
59 struct vif_params *params)
42613db7 60{
9607e6b6 61 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 62 int ret;
42613db7 63
05c914fe 64 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 65 if (ret)
66 return ret;
42613db7 67
9bc383de
JB		 68 if (type == NL80211_IFTYPE_AP_VLAN &&
69 params && params->use_4addr == 0)
a9b3cd7f 70 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
9bc383de
JB		 71 else if (type == NL80211_IFTYPE_STATION &&
72 params && params->use_4addr >= 0)
73 sdata->u.mgd.use_4addr = params->use_4addr;
74
85416a4f
CL		 75 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
76 struct ieee80211_local *local = sdata->local;
77
78 if (ieee80211_sdata_running(sdata)) {
31eba5bc
FF		 79 u32 mask = MONITOR_FLAG_COOK_FRAMES |
80 MONITOR_FLAG_ACTIVE;
81
85416a4f 82 /*
31eba5bc
FF		 83 * Prohibit MONITOR_FLAG_COOK_FRAMES and
84 * MONITOR_FLAG_ACTIVE to be changed while the
85 * interface is up.
85416a4f
CL		 86 * Else we would need to add a lot of cruft
87 * to update everything:
88 * cooked_mntrs, monitor and all fif_* counters
89 * reconfigure hardware
90 */
31eba5bc 91 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
85416a4f
CL		 92 return -EBUSY;
93
94 ieee80211_adjust_monitor_flags(sdata, -1);
95 sdata->u.mntr_flags = *flags;
96 ieee80211_adjust_monitor_flags(sdata, 1);
97
98 ieee80211_configure_filter(local);
99 } else {
100 /*
101 * Because the interface is down, ieee80211_do_stop
102 * and ieee80211_do_open take care of "everything"
103 * mentioned in the comment above.
104 */
105 sdata->u.mntr_flags = *flags;
106 }
107 }
f7917af9 108
42613db7
JB		 109 return 0;
110}
111
f142c6b9
JB		 112static int ieee80211_start_p2p_device(struct wiphy *wiphy,
113 struct wireless_dev *wdev)
114{
b6a55015
LC		 115 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
116 int ret;
117
118 mutex_lock(&sdata->local->chanctx_mtx);
119 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
120 mutex_unlock(&sdata->local->chanctx_mtx);
121 if (ret < 0)
122 return ret;
123
f142c6b9
JB		 124 return ieee80211_do_open(wdev, true);
125}
126
127static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
128 struct wireless_dev *wdev)
129{
130 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
131}
132
b53be792
SW		 133static int ieee80211_set_noack_map(struct wiphy *wiphy,
134 struct net_device *dev,
135 u16 noack_map)
136{
137 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
138
139 sdata->noack_map = noack_map;
17c18bf8
JB		 140
141 ieee80211_check_fast_xmit_iface(sdata);
142
b53be792
SW		 143 return 0;
144}
145
e8cbb4cb 146static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 147 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 148 struct key_params *params)
149{
26a58456 150 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2475b1cc 151 struct ieee80211_local *local = sdata->local;
e8cbb4cb 152 struct sta_info *sta = NULL;
2475b1cc 153 const struct ieee80211_cipher_scheme *cs = NULL;
db4d1169 154 struct ieee80211_key *key;
3b96766f 155 int err;
e8cbb4cb 156
26a58456 157 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 158 return -ENETDOWN;
159
97359d12 160 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 161 switch (params->cipher) {
162 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 163 case WLAN_CIPHER_SUITE_TKIP:
97359d12 164 case WLAN_CIPHER_SUITE_WEP104:
2475b1cc 165 if (IS_ERR(local->wep_tx_tfm))
97359d12 166 return -EINVAL;
3cfcf6ac 167 break;
2475b1cc 168 case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db 169 case WLAN_CIPHER_SUITE_CCMP_256:
2475b1cc 170 case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2 171 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
8ade538b
JM		 172 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
173 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2475b1cc 174 case WLAN_CIPHER_SUITE_GCMP:
00b9cfa3 175 case WLAN_CIPHER_SUITE_GCMP_256:
2475b1cc 176 break;
e8cbb4cb 177 default:
2475b1cc 178 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
97359d12 179 break;
e8cbb4cb
JB		 180 }
181
97359d12 182 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
2475b1cc
MS		 183 params->key, params->seq_len, params->seq,
184 cs);
1ac62ba7
BH		 185 if (IS_ERR(key))
186 return PTR_ERR(key);
db4d1169 187
e31b8213
JB		 188 if (pairwise)
189 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
190
2475b1cc 191 mutex_lock(&local->sta_mtx);
3b96766f 192
e8cbb4cb 193 if (mac_addr) {
ff973af7
TP		 194 if (ieee80211_vif_is_mesh(&sdata->vif))
195 sta = sta_info_get(sdata, mac_addr);
196 else
197 sta = sta_info_get_bss(sdata, mac_addr);
1626e0fa
JB		 198 /*
199 * The ASSOC test makes sure the driver is ready to
200 * receive the key. When wpa_supplicant has roamed
201 * using FT, it attempts to set the key before
202 * association has completed, this rejects that attempt
d070f913 203 * so it will set the key again after association.
1626e0fa
JB		 204 *
205 * TODO: accept the key if we have a station entry and
206 * add it to the device after the station.
207 */
208 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
79cf2dfa 209 ieee80211_key_free_unused(key);
3b96766f
JB		 210 err = -ENOENT;
211 goto out_unlock;
db4d1169 212 }
e8cbb4cb
JB		 213 }
214
e548c49e
JB		 215 switch (sdata->vif.type) {
216 case NL80211_IFTYPE_STATION:
217 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
218 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
219 break;
220 case NL80211_IFTYPE_AP:
221 case NL80211_IFTYPE_AP_VLAN:
222 /* Keys without a station are used for TX only */
223 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
224 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
225 break;
226 case NL80211_IFTYPE_ADHOC:
227 /* no MFP (yet) */
228 break;
229 case NL80211_IFTYPE_MESH_POINT:
230#ifdef CONFIG_MAC80211_MESH
231 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
232 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
233 break;
234#endif
235 case NL80211_IFTYPE_WDS:
236 case NL80211_IFTYPE_MONITOR:
237 case NL80211_IFTYPE_P2P_DEVICE:
238 case NL80211_IFTYPE_UNSPECIFIED:
239 case NUM_NL80211_IFTYPES:
240 case NL80211_IFTYPE_P2P_CLIENT:
241 case NL80211_IFTYPE_P2P_GO:
6e0bd6c3 242 case NL80211_IFTYPE_OCB:
e548c49e
JB		 243 /* shouldn't happen */
244 WARN_ON_ONCE(1);
245 break;
246 }
247
2475b1cc
MS		 248 if (sta)
249 sta->cipher_scheme = cs;
250
3ffc2a90 251 err = ieee80211_key_link(key, sdata, sta);
db4d1169 252
3b96766f 253 out_unlock:
2475b1cc 254 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 255
256 return err;
e8cbb4cb
JB		 257}
258
259static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 260 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 261{
5c0c3641
JB		 262 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
263 struct ieee80211_local *local = sdata->local;
e8cbb4cb 264 struct sta_info *sta;
5c0c3641 265 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 266 int ret;
267
5c0c3641
JB		 268 mutex_lock(&local->sta_mtx);
269 mutex_lock(&local->key_mtx);
3b96766f 270
e8cbb4cb 271 if (mac_addr) {
3b96766f
JB		 272 ret = -ENOENT;
273
0e5ded5a 274 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 275 if (!sta)
3b96766f 276 goto out_unlock;
e8cbb4cb 277
5c0c3641 278 if (pairwise)
2475b1cc 279 key = key_mtx_dereference(local, sta->ptk[key_idx]);
5c0c3641 280 else
40b275b6 281 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 282 } else
40b275b6 283 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 284
5c0c3641 285 if (!key) {
3b96766f
JB		 286 ret = -ENOENT;
287 goto out_unlock;
288 }
e8cbb4cb 289
3b8d9c29 290 ieee80211_key_free(key, true);
e8cbb4cb 291
3b96766f
JB		 292 ret = 0;
293 out_unlock:
5c0c3641
JB		 294 mutex_unlock(&local->key_mtx);
295 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 296
297 return ret;
e8cbb4cb
JB		 298}
299
62da92fb 300static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 301 u8 key_idx, bool pairwise, const u8 *mac_addr,
302 void *cookie,
62da92fb
JB		 303 void (*callback)(void *cookie,
304 struct key_params *params))
305{
14db74bc 306 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 307 struct sta_info *sta = NULL;
308 u8 seq[6] = {0};
309 struct key_params params;
e31b8213 310 struct ieee80211_key *key = NULL;
aba83a0b 311 u64 pn64;
62da92fb
JB		 312 u32 iv32;
313 u16 iv16;
314 int err = -ENOENT;
9352c19f 315 struct ieee80211_key_seq kseq = {};
62da92fb 316
14db74bc
JB		 317 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
318
3b96766f
JB		 319 rcu_read_lock();
320
62da92fb 321 if (mac_addr) {
0e5ded5a 322 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 323 if (!sta)
324 goto out;
325
354e159d 326 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
2475b1cc 327 key = rcu_dereference(sta->ptk[key_idx]);
31f1f4ec
MS		 328 else if (!pairwise &&
329 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
a3836e02 330 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 331 } else
a3836e02 332 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 333
334 if (!key)
335 goto out;
336
337 memset(&params, 0, sizeof(params));
338
97359d12 339 params.cipher = key->conf.cipher;
62da92fb 340
97359d12
JB		 341 switch (key->conf.cipher) {
342 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 343 iv32 = key->u.tkip.tx.iv32;
344 iv16 = key->u.tkip.tx.iv16;
62da92fb 345
9352c19f
JB		 346 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
347 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
348 drv_get_key_seq(sdata->local, key, &kseq);
349 iv32 = kseq.tkip.iv32;
350 iv16 = kseq.tkip.iv16;
351 }
62da92fb
JB		 352
353 seq[0] = iv16 & 0xff;
354 seq[1] = (iv16 >> 8) & 0xff;
355 seq[2] = iv32 & 0xff;
356 seq[3] = (iv32 >> 8) & 0xff;
357 seq[4] = (iv32 >> 16) & 0xff;
358 seq[5] = (iv32 >> 24) & 0xff;
359 params.seq = seq;
360 params.seq_len = 6;
361 break;
97359d12 362 case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db 363 case WLAN_CIPHER_SUITE_CCMP_256:
97359d12 364 case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2 365 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
db388a56
JB		 366 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
367 offsetof(typeof(kseq), aes_cmac));
8ade538b
JM		 368 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
369 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
db388a56
JB		 370 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
371 offsetof(typeof(kseq), aes_gmac));
00b9cfa3
JM		 372 case WLAN_CIPHER_SUITE_GCMP:
373 case WLAN_CIPHER_SUITE_GCMP_256:
db388a56
JB		 374 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
375 offsetof(typeof(kseq), gcmp));
376
9352c19f
JB		 377 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
378 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
379 drv_get_key_seq(sdata->local, key, &kseq);
db388a56 380 memcpy(seq, kseq.ccmp.pn, 6);
9352c19f 381 } else {
db388a56 382 pn64 = atomic64_read(&key->conf.tx_pn);
9352c19f
JB		 383 seq[0] = pn64;
384 seq[1] = pn64 >> 8;
385 seq[2] = pn64 >> 16;
386 seq[3] = pn64 >> 24;
387 seq[4] = pn64 >> 32;
388 seq[5] = pn64 >> 40;
389 }
00b9cfa3
JM		 390 params.seq = seq;
391 params.seq_len = 6;
392 break;
a31cf1c6
JB		 393 default:
394 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
395 break;
396 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
397 break;
398 drv_get_key_seq(sdata->local, key, &kseq);
399 params.seq = kseq.hw.seq;
400 params.seq_len = kseq.hw.seq_len;
401 break;
62da92fb
JB		 402 }
403
404 params.key = key->conf.key;
405 params.key_len = key->conf.keylen;
406
407 callback(cookie, &params);
408 err = 0;
409
410 out:
3b96766f 411 rcu_read_unlock();
62da92fb
JB		 412 return err;
413}
414
e8cbb4cb
JB		 415static int ieee80211_config_default_key(struct wiphy *wiphy,
416 struct net_device *dev,
dbd2fd65
JB		 417 u8 key_idx, bool uni,
418 bool multi)
e8cbb4cb 419{
ad0e2b5a 420 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 421
f7e0104c 422 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 423
424 return 0;
425}
426
3cfcf6ac
JM		 427static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
428 struct net_device *dev,
429 u8 key_idx)
430{
66c52421 431 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 432
3cfcf6ac
JM		 433 ieee80211_set_default_mgmt_key(sdata, key_idx);
434
3cfcf6ac
JM		 435 return 0;
436}
437
6b62bf32
TP		 438void sta_set_rate_info_tx(struct sta_info *sta,
439 const struct ieee80211_tx_rate *rate,
440 struct rate_info *rinfo)
441{
442 rinfo->flags = 0;
8bc83c24 443 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 444 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 445 rinfo->mcs = rate->idx;
446 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
447 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
448 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
449 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
450 } else {
451 struct ieee80211_supported_band *sband;
2103dec1
SW		 452 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
453 u16 brate;
454
8bc83c24
JB		 455 sband = sta->local->hw.wiphy->bands[
456 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 457 brate = sband->bitrates[rate->idx].bitrate;
458 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
8bc83c24 459 }
6b62bf32 460 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
b51f3bee
JB		 461 rinfo->bw = RATE_INFO_BW_40;
462 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
463 rinfo->bw = RATE_INFO_BW_80;
464 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
465 rinfo->bw = RATE_INFO_BW_160;
466 else
467 rinfo->bw = RATE_INFO_BW_20;
6b62bf32
TP		 468 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
469 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 470}
471
003e676a
S		 472void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
473{
474 rinfo->flags = 0;
475
476 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
477 rinfo->flags |= RATE_INFO_FLAGS_MCS;
478 rinfo->mcs = sta->last_rx_rate_idx;
479 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
480 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
481 rinfo->nss = sta->last_rx_rate_vht_nss;
482 rinfo->mcs = sta->last_rx_rate_idx;
483 } else {
484 struct ieee80211_supported_band *sband;
2103dec1
SW		 485 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
486 u16 brate;
003e676a
S		 487
488 sband = sta->local->hw.wiphy->bands[
489 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 490 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
491 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
003e676a
S		 492 }
493
003e676a
S		 494 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
495 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
b51f3bee
JB		 496
497 if (sta->last_rx_rate_flag & RX_FLAG_5MHZ)
498 rinfo->bw = RATE_INFO_BW_5;
499 else if (sta->last_rx_rate_flag & RX_FLAG_10MHZ)
500 rinfo->bw = RATE_INFO_BW_10;
501 else if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
502 rinfo->bw = RATE_INFO_BW_40;
503 else if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
504 rinfo->bw = RATE_INFO_BW_80;
505 else if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
506 rinfo->bw = RATE_INFO_BW_160;
507 else
508 rinfo->bw = RATE_INFO_BW_20;
003e676a
S		 509}
510
c5dd9c2b 511static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 512 int idx, u8 *mac, struct station_info *sinfo)
c5dd9c2b 513{
3b53fde8 514 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 515 struct ieee80211_local *local = sdata->local;
c5dd9c2b 516 struct sta_info *sta;
d0709a65
JB		 517 int ret = -ENOENT;
518
66572cfc 519 mutex_lock(&local->sta_mtx);
c5dd9c2b 520
3b53fde8 521 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 522 if (sta) {
523 ret = 0;
17741cdc 524 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 525 sta_set_sinfo(sta, sinfo);
526 }
c5dd9c2b 527
66572cfc 528 mutex_unlock(&local->sta_mtx);
c5dd9c2b 529
d0709a65 530 return ret;
c5dd9c2b
LCC		 531}
532
1289723e
HS		 533static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
534 int idx, struct survey_info *survey)
535{
536 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
537
1289723e
HS		 538 return drv_get_survey(local, idx, survey);
539}
540
7bbdd2d9 541static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 542 const u8 *mac, struct station_info *sinfo)
7bbdd2d9 543{
abe60632 544 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 545 struct ieee80211_local *local = sdata->local;
7bbdd2d9 546 struct sta_info *sta;
d0709a65 547 int ret = -ENOENT;
7bbdd2d9 548
66572cfc 549 mutex_lock(&local->sta_mtx);
7bbdd2d9 550
0e5ded5a 551 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 552 if (sta) {
553 ret = 0;
554 sta_set_sinfo(sta, sinfo);
555 }
556
66572cfc 557 mutex_unlock(&local->sta_mtx);
d0709a65
JB		 558
559 return ret;
7bbdd2d9
JB		 560}
561
55de908a 562static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
683b6d3b 563 struct cfg80211_chan_def *chandef)
3d9e6e12
JB		 564{
565 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a
JB		 566 struct ieee80211_sub_if_data *sdata;
567 int ret = 0;
3d9e6e12 568
4bf88530 569 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
55de908a 570 return 0;
3d9e6e12 571
34a3740d 572 mutex_lock(&local->mtx);
55de908a
JB		 573 mutex_lock(&local->iflist_mtx);
574 if (local->use_chanctx) {
575 sdata = rcu_dereference_protected(
576 local->monitor_sdata,
577 lockdep_is_held(&local->iflist_mtx));
578 if (sdata) {
579 ieee80211_vif_release_channel(sdata);
4bf88530 580 ret = ieee80211_vif_use_channel(sdata, chandef,
55de908a
JB		 581 IEEE80211_CHANCTX_EXCLUSIVE);
582 }
583 } else if (local->open_count == local->monitors) {
675a0b04 584 local->_oper_chandef = *chandef;
55de908a
JB		 585 ieee80211_hw_config(local, 0);
586 }
3d9e6e12 587
4bf88530
JB		 588 if (ret == 0)
589 local->monitor_chandef = *chandef;
55de908a 590 mutex_unlock(&local->iflist_mtx);
34a3740d 591 mutex_unlock(&local->mtx);
3d9e6e12 592
55de908a 593 return ret;
e8c9bd5b
JB		 594}
595
02945821 596static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 597 const u8 *resp, size_t resp_len,
598 const struct ieee80211_csa_settings *csa)
02945821 599{
aa7a0080 600 struct probe_resp *new, *old;
02945821
AN		 601
602 if (!resp || !resp_len)
aba4e6ff 603 return 1;
02945821 604
7ca133bc 605 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
02945821 606
aa7a0080 607 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
02945821
AN		 608 if (!new)
609 return -ENOMEM;
610
aa7a0080
ES		 611 new->len = resp_len;
612 memcpy(new->data, resp, resp_len);
02945821 613
af296bdb
MK		 614 if (csa)
615 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
616 csa->n_counter_offsets_presp *
617 sizeof(new->csa_counter_offsets[0]));
618
02945821 619 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
aa7a0080
ES		 620 if (old)
621 kfree_rcu(old, rcu_head);
02945821
AN		 622
623 return 0;
624}
625
0ae07968 626static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 627 struct cfg80211_beacon_data *params,
628 const struct ieee80211_csa_settings *csa)
5dfdaf58
JB		 629{
630 struct beacon_data *new, *old;
631 int new_head_len, new_tail_len;
8860020e
JB		 632 int size, err;
633 u32 changed = BSS_CHANGED_BEACON;
5dfdaf58 634
7ca133bc
SW		 635 old = sdata_dereference(sdata->u.ap.beacon, sdata);
636
5dfdaf58 637
5dfdaf58
JB		 638 /* Need to have a beacon head if we don't have one yet */
639 if (!params->head && !old)
8860020e 640 return -EINVAL;
5dfdaf58
JB		 641
642 /* new or old head? */
643 if (params->head)
644 new_head_len = params->head_len;
645 else
646 new_head_len = old->head_len;
647
648 /* new or old tail? */
649 if (params->tail || !old)
650 /* params->tail_len will be zero for !params->tail */
651 new_tail_len = params->tail_len;
652 else
653 new_tail_len = old->tail_len;
654
655 size = sizeof(*new) + new_head_len + new_tail_len;
656
657 new = kzalloc(size, GFP_KERNEL);
658 if (!new)
659 return -ENOMEM;
660
661 /* start filling the new info now */
662
5dfdaf58
JB		 663 /*
664 * pointers go into the block we allocated,
665 * memory is | beacon_data | head | tail |
666 */
667 new->head = ((u8 *) new) + sizeof(*new);
668 new->tail = new->head + new_head_len;
669 new->head_len = new_head_len;
670 new->tail_len = new_tail_len;
671
af296bdb
MK		 672 if (csa) {
673 new->csa_current_counter = csa->count;
674 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
675 csa->n_counter_offsets_beacon *
676 sizeof(new->csa_counter_offsets[0]));
677 }
678
5dfdaf58
JB		 679 /* copy in head */
680 if (params->head)
681 memcpy(new->head, params->head, new_head_len);
682 else
683 memcpy(new->head, old->head, new_head_len);
684
685 /* copy in optional tail */
686 if (params->tail)
687 memcpy(new->tail, params->tail, new_tail_len);
688 else
689 if (old)
690 memcpy(new->tail, old->tail, new_tail_len);
691
02945821 692 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
af296bdb 693 params->probe_resp_len, csa);
8860020e
JB		 694 if (err < 0)
695 return err;
696 if (err == 0)
02945821
AN		 697 changed |= BSS_CHANGED_AP_PROBE_RESP;
698
8860020e
JB		 699 rcu_assign_pointer(sdata->u.ap.beacon, new);
700
701 if (old)
702 kfree_rcu(old, rcu_head);
7827493b 703
8860020e 704 return changed;
5dfdaf58
JB		 705}
706
8860020e
JB		 707static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
708 struct cfg80211_ap_settings *params)
5dfdaf58 709{
8860020e 710 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
34a3740d 711 struct ieee80211_local *local = sdata->local;
5dfdaf58 712 struct beacon_data *old;
665c93a9 713 struct ieee80211_sub_if_data *vlan;
8860020e
JB		 714 u32 changed = BSS_CHANGED_BEACON_INT |
715 BSS_CHANGED_BEACON_ENABLED |
716 BSS_CHANGED_BEACON |
339afbf4 717 BSS_CHANGED_SSID |
4bcc56bb
JB		 718 BSS_CHANGED_P2P_PS |
719 BSS_CHANGED_TXPOWER;
8860020e 720 int err;
14db74bc 721
7ca133bc 722 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 723 if (old)
724 return -EALREADY;
725
f6993174
EP		 726 switch (params->smps_mode) {
727 case NL80211_SMPS_OFF:
728 sdata->smps_mode = IEEE80211_SMPS_OFF;
729 break;
730 case NL80211_SMPS_STATIC:
731 sdata->smps_mode = IEEE80211_SMPS_STATIC;
732 break;
733 case NL80211_SMPS_DYNAMIC:
734 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
735 break;
736 default:
737 return -EINVAL;
738 }
04ecd257
JB		 739 sdata->needed_rx_chains = sdata->local->rx_chains;
740
34a3740d 741 mutex_lock(&local->mtx);
4bf88530 742 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 743 IEEE80211_CHANCTX_SHARED);
4e141dad
MK		 744 if (!err)
745 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
34a3740d 746 mutex_unlock(&local->mtx);
aa430da4
JB		 747 if (err)
748 return err;
749
665c93a9
JB		 750 /*
751 * Apply control port protocol, this allows us to
752 * not encrypt dynamic WEP control frames.
753 */
754 sdata->control_port_protocol = params->crypto.control_port_ethertype;
755 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
2475b1cc
MS		 756 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
757 &params->crypto,
758 sdata->vif.type);
759
665c93a9
JB		 760 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
761 vlan->control_port_protocol =
762 params->crypto.control_port_ethertype;
763 vlan->control_port_no_encrypt =
764 params->crypto.control_port_no_encrypt;
2475b1cc
MS		 765 vlan->encrypt_headroom =
766 ieee80211_cs_headroom(sdata->local,
767 &params->crypto,
768 vlan->vif.type);
665c93a9
JB		 769 }
770
8860020e
JB		 771 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
772 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 773 sdata->vif.bss_conf.enable_beacon = true;
8860020e
JB		 774
775 sdata->vif.bss_conf.ssid_len = params->ssid_len;
776 if (params->ssid_len)
777 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
778 params->ssid_len);
779 sdata->vif.bss_conf.hidden_ssid =
780 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
781
67baf663
JD		 782 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
783 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
784 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
785 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
786 if (params->p2p_opp_ps)
787 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
788 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 789
af296bdb 790 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
0297ea17
EG		 791 if (err < 0) {
792 ieee80211_vif_release_channel(sdata);
8860020e 793 return err;
0297ea17 794 }
8860020e
JB		 795 changed |= err;
796
1041638f
JB		 797 err = drv_start_ap(sdata->local, sdata);
798 if (err) {
7ca133bc
SW		 799 old = sdata_dereference(sdata->u.ap.beacon, sdata);
800
1041638f
JB		 801 if (old)
802 kfree_rcu(old, rcu_head);
803 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
0297ea17 804 ieee80211_vif_release_channel(sdata);
1041638f
JB		 805 return err;
806 }
807
057d5f4b 808 ieee80211_recalc_dtim(local, sdata);
8860020e
JB		 809 ieee80211_bss_info_change_notify(sdata, changed);
810
3edaf3e6
JB		 811 netif_carrier_on(dev);
812 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
813 netif_carrier_on(vlan->dev);
814
665c93a9 815 return 0;
5dfdaf58
JB		 816}
817
8860020e
JB		 818static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
819 struct cfg80211_beacon_data *params)
5dfdaf58 820{
14db74bc 821 struct ieee80211_sub_if_data *sdata;
5dfdaf58 822 struct beacon_data *old;
8860020e 823 int err;
5dfdaf58 824
14db74bc 825 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
dbd72850 826 sdata_assert_lock(sdata);
14db74bc 827
73da7d5b
SW		 828 /* don't allow changing the beacon while CSA is in place - offset
829 * of channel switch counter may change
830 */
831 if (sdata->vif.csa_active)
832 return -EBUSY;
833
7ca133bc 834 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 835 if (!old)
836 return -ENOENT;
837
af296bdb 838 err = ieee80211_assign_beacon(sdata, params, NULL);
8860020e
JB		 839 if (err < 0)
840 return err;
841 ieee80211_bss_info_change_notify(sdata, err);
842 return 0;
5dfdaf58
JB		 843}
844
8860020e 845static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 846{
7b20b8e8
JB		 847 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
848 struct ieee80211_sub_if_data *vlan;
849 struct ieee80211_local *local = sdata->local;
850 struct beacon_data *old_beacon;
851 struct probe_resp *old_probe_resp;
d2859df5 852 struct cfg80211_chan_def chandef;
14db74bc 853
dbd72850
MK		 854 sdata_assert_lock(sdata);
855
7ca133bc 856 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 857 if (!old_beacon)
5dfdaf58 858 return -ENOENT;
7ca133bc 859 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 860
73da7d5b 861 /* abort any running channel switch */
59af6928 862 mutex_lock(&local->mtx);
73da7d5b 863 sdata->vif.csa_active = false;
a46992b4
LC		 864 if (sdata->csa_block_tx) {
865 ieee80211_wake_vif_queues(local, sdata,
866 IEEE80211_QUEUE_STOP_REASON_CSA);
867 sdata->csa_block_tx = false;
868 }
869
59af6928
MK		 870 mutex_unlock(&local->mtx);
871
1f3b8a2b
SW		 872 kfree(sdata->u.ap.next_beacon);
873 sdata->u.ap.next_beacon = NULL;
874
7b20b8e8 875 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 876 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
877 netif_carrier_off(vlan->dev);
878 netif_carrier_off(dev);
879
7b20b8e8 880 /* remove beacon and probe response */
a9b3cd7f 881 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 882 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
883 kfree_rcu(old_beacon, rcu_head);
884 if (old_probe_resp)
885 kfree_rcu(old_probe_resp, rcu_head);
8ffcc704 886 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
8860020e 887
e716251d 888 __sta_info_flush(sdata, true);
7907c7d3 889 ieee80211_free_keys(sdata, true);
75de9113 890
d6a83228 891 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 892 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 893 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 894 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 895
a6b368f6 896 if (sdata->wdev.cac_started) {
d2859df5 897 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 898 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 899 cfg80211_cac_event(sdata->dev, &chandef,
900 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 901 GFP_KERNEL);
902 }
903
1041638f
JB		 904 drv_stop_ap(sdata->local, sdata);
905
7b20b8e8
JB		 906 /* free all potentially still buffered bcast frames */
907 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
908 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
909
34a3740d 910 mutex_lock(&local->mtx);
4e141dad 911 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a 912 ieee80211_vif_release_channel(sdata);
34a3740d 913 mutex_unlock(&local->mtx);
55de908a 914
2d0ddec5 915 return 0;
5dfdaf58
JB		 916}
917
4fd6931e
JB		 918/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
919struct iapp_layer2_update {
920 u8 da[ETH_ALEN]; /* broadcast */
921 u8 sa[ETH_ALEN]; /* STA addr */
922 __be16 len; /* 6 */
923 u8 dsap; /* 0 */
924 u8 ssap; /* 0 */
925 u8 control;
926 u8 xid_info[3];
bc10502d 927} __packed;
4fd6931e
JB		 928
929static void ieee80211_send_layer2_update(struct sta_info *sta)
930{
931 struct iapp_layer2_update *msg;
932 struct sk_buff *skb;
933
934 /* Send Level 2 Update Frame to update forwarding tables in layer 2
935 * bridge devices */
936
937 skb = dev_alloc_skb(sizeof(*msg));
938 if (!skb)
939 return;
940 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
941
942 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
943 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
944
e83e6541 945 eth_broadcast_addr(msg->da);
17741cdc 946 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 947 msg->len = htons(6);
948 msg->dsap = 0;
949 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
950 msg->control = 0xaf; /* XID response lsb.1111F101.
951 * F=0 (no poll command; unsolicited frame) */
952 msg->xid_info[0] = 0x81; /* XID format identifier */
953 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
954 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
955
d0709a65
JB		 956 skb->dev = sta->sdata->dev;
957 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 958 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 959 netif_rx_ni(skb);
4fd6931e
JB		 960}
961
d582cffb
JB		 962static int sta_apply_auth_flags(struct ieee80211_local *local,
963 struct sta_info *sta,
964 u32 mask, u32 set)
965{
966 int ret;
967
968 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
969 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
970 !test_sta_flag(sta, WLAN_STA_AUTH)) {
971 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
972 if (ret)
973 return ret;
974 }
975
976 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
977 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
978 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
c23e31cf
MP		 979 /*
980 * When peer becomes associated, init rate control as
981 * well. Some drivers require rate control initialized
982 * before drv_sta_state() is called.
983 */
984 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
985 rate_control_rate_init(sta);
986
d582cffb
JB		 987 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
988 if (ret)
989 return ret;
990 }
991
992 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
993 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
994 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
995 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
996 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
997 else
998 ret = 0;
999 if (ret)
1000 return ret;
1001 }
1002
1003 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1004 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1005 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1006 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1007 if (ret)
1008 return ret;
1009 }
1010
1011 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1012 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1013 test_sta_flag(sta, WLAN_STA_AUTH)) {
1014 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1015 if (ret)
1016 return ret;
1017 }
1018
1019 return 0;
1020}
1021
d9a7ddb0
JB		 1022static int sta_apply_parameters(struct ieee80211_local *local,
1023 struct sta_info *sta,
1024 struct station_parameters *params)
4fd6931e 1025{
d9a7ddb0 1026 int ret = 0;
8318d78a 1027 struct ieee80211_supported_band *sband;
d0709a65 1028 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 1029 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1030 u32 mask, set;
4fd6931e 1031
55de908a 1032 sband = local->hw.wiphy->bands[band];
ae5eb026 1033
eccb8e8f
JB		 1034 mask = params->sta_flags_mask;
1035 set = params->sta_flags_set;
73651ee6 1036
d582cffb
JB		 1037 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1038 /*
1039 * In mesh mode, ASSOCIATED isn't part of the nl80211
1040 * API but must follow AUTHENTICATED for driver state.
1041 */
1042 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1043 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1044 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1045 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1046 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1047 /*
1048 * TDLS -- everything follows authorized, but
1049 * only becoming authorized is possible, not
1050 * going back
1051 */
1052 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1053 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1054 BIT(NL80211_STA_FLAG_ASSOCIATED);
1055 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1056 BIT(NL80211_STA_FLAG_ASSOCIATED);
1057 }
eccb8e8f 1058 }
4fd6931e 1059
2c44be81
JB		 1060 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1061 local->hw.queues >= IEEE80211_NUM_ACS)
1062 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1063
68885a54
AN		 1064 /* auth flags will be set later for TDLS stations */
1065 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1066 ret = sta_apply_auth_flags(local, sta, mask, set);
1067 if (ret)
1068 return ret;
1069 }
d9a7ddb0 1070
eccb8e8f 1071 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1072 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1073 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1074 else
1075 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1076 }
4fd6931e 1077
eccb8e8f 1078 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
64a8cef4 1079 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
eccb8e8f 1080 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1081 set_sta_flag(sta, WLAN_STA_MFP);
1082 else
1083 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1084 }
b39c48fa 1085
07ba55d7 1086 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1087 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1088 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1089 else
1090 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1091 }
4fd6931e 1092
9041c1fa
AN		 1093 /* mark TDLS channel switch support, if the AP allows it */
1094 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1095 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1096 params->ext_capab_len >= 4 &&
1097 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1098 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1099
3b9ce80c
JB		 1100 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1101 sta->sta.uapsd_queues = params->uapsd_queues;
1102 sta->sta.max_sp = params->max_sp;
1103 }
9533b4ac 1104
51b50fbe
JB		 1105 /*
1106 * cfg80211 validates this (1-2007) and allows setting the AID
1107 * only when creating a new station entry
1108 */
1109 if (params->aid)
1110 sta->sta.aid = params->aid;
1111
73651ee6 1112 /*
ba23d206
JB		 1113 * Some of the following updates would be racy if called on an
1114 * existing station, via ieee80211_change_station(). However,
1115 * all such changes are rejected by cfg80211 except for updates
1116 * changing the supported rates on an existing but not yet used
1117 * TDLS peer.
73651ee6
JB		 1118 */
1119
4fd6931e
JB		 1120 if (params->listen_interval >= 0)
1121 sta->listen_interval = params->listen_interval;
1122
1123 if (params->supported_rates) {
2103dec1
SW		 1124 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1125 sband, params->supported_rates,
1126 params->supported_rates_len,
1127 &sta->sta.supp_rates[band]);
4fd6931e 1128 }
c5dd9c2b 1129
d9fe60de 1130 if (params->ht_capa)
ef96a842 1131 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1132 params->ht_capa, sta);
36aedc90 1133
f461be3e
MP		 1134 if (params->vht_capa)
1135 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1136 params->vht_capa, sta);
f461be3e 1137
b1bce14a 1138 if (params->opmode_notif_used) {
b1bce14a
MK		 1139 /* returned value is only needed for rc update, but the
1140 * rc isn't initialized here yet, so ignore it
1141 */
1142 __ieee80211_vht_handle_opmode(sdata, sta,
1143 params->opmode_notif,
1144 band, false);
1145 }
1146
9c3990aa 1147 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1148#ifdef CONFIG_MAC80211_MESH
39886b61 1149 u32 changed = 0;
77ee7c89
JB		 1150
1151 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1152 switch (params->plink_state) {
57cf8043 1153 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1154 if (sta->plink_state != NL80211_PLINK_ESTAB)
1155 changed = mesh_plink_inc_estab_count(
1156 sdata);
1157 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1158
1159 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1160 changed |= ieee80211_mps_set_sta_local_pm(sta,
1161 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1162 break;
1163 case NL80211_PLINK_LISTEN:
57cf8043 1164 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1165 case NL80211_PLINK_OPN_SNT:
1166 case NL80211_PLINK_OPN_RCVD:
1167 case NL80211_PLINK_CNF_RCVD:
1168 case NL80211_PLINK_HOLDING:
1169 if (sta->plink_state == NL80211_PLINK_ESTAB)
1170 changed = mesh_plink_dec_estab_count(
1171 sdata);
9c3990aa 1172 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1173
1174 ieee80211_mps_sta_status_update(sta);
446075d7
MP		 1175 changed |= ieee80211_mps_set_sta_local_pm(sta,
1176 NL80211_MESH_POWER_UNKNOWN);
9c3990aa
JC		 1177 break;
1178 default:
1179 /* nothing */
1180 break;
1181 }
77ee7c89
JB		 1182 }
1183
1184 switch (params->plink_action) {
1185 case NL80211_PLINK_ACTION_NO_ACTION:
1186 /* nothing */
1187 break;
1188 case NL80211_PLINK_ACTION_OPEN:
1189 changed |= mesh_plink_open(sta);
1190 break;
1191 case NL80211_PLINK_ACTION_BLOCK:
1192 changed |= mesh_plink_block(sta);
1193 break;
1617bab8 1194 }
3f52b7e3
MP		 1195
1196 if (params->local_pm)
39886b61
TP		 1197 changed |=
1198 ieee80211_mps_set_sta_local_pm(sta,
1199 params->local_pm);
6c751ef8 1200 ieee80211_mbss_info_change_notify(sdata, changed);
4daf50f2 1201#endif
902acc78 1202 }
d9a7ddb0 1203
68885a54
AN		 1204 /* set the STA state after all sta info from usermode has been set */
1205 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1206 ret = sta_apply_auth_flags(local, sta, mask, set);
1207 if (ret)
1208 return ret;
1209 }
1210
d9a7ddb0 1211 return 0;
4fd6931e
JB		 1212}
1213
1214static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1215 const u8 *mac,
1216 struct station_parameters *params)
4fd6931e 1217{
14db74bc 1218 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1219 struct sta_info *sta;
1220 struct ieee80211_sub_if_data *sdata;
73651ee6 1221 int err;
b8d476c8 1222 int layer2_update;
4fd6931e 1223
4fd6931e
JB		 1224 if (params->vlan) {
1225 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1226
05c914fe
JB		 1227 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1228 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1229 return -EINVAL;
1230 } else
1231 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1232
b203ca39 1233 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1234 return -EINVAL;
1235
1236 if (is_multicast_ether_addr(mac))
1237 return -EINVAL;
1238
1239 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1240 if (!sta)
1241 return -ENOMEM;
4fd6931e 1242
d582cffb
JB		 1243 /*
1244 * defaults -- if userspace wants something else we'll
1245 * change it accordingly in sta_apply_parameters()
1246 */
77ee7c89
JB		 1247 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1248 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1249 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
0c4972cc
AN		 1250 } else {
1251 sta->sta.tdls = true;
77ee7c89 1252 }
4fd6931e 1253
d9a7ddb0
JB		 1254 err = sta_apply_parameters(local, sta, params);
1255 if (err) {
1256 sta_info_free(local, sta);
1257 return err;
1258 }
4fd6931e 1259
d64cf63e 1260 /*
77ee7c89
JB		 1261 * for TDLS, rate control should be initialized only when
1262 * rates are known and station is marked authorized
d64cf63e
AN		 1263 */
1264 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1265 rate_control_rate_init(sta);
4fd6931e 1266
b8d476c8
JM		 1267 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1268 sdata->vif.type == NL80211_IFTYPE_AP;
1269
34e89507 1270 err = sta_info_insert_rcu(sta);
73651ee6 1271 if (err) {
73651ee6
JB		 1272 rcu_read_unlock();
1273 return err;
1274 }
1275
b8d476c8 1276 if (layer2_update)
73651ee6
JB		 1277 ieee80211_send_layer2_update(sta);
1278
1279 rcu_read_unlock();
1280
4fd6931e
JB		 1281 return 0;
1282}
1283
1284static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
89c771e5 1285 struct station_del_parameters *params)
4fd6931e 1286{
14db74bc 1287 struct ieee80211_sub_if_data *sdata;
4fd6931e 1288
14db74bc
JB		 1289 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1290
89c771e5
JM		 1291 if (params->mac)
1292 return sta_info_destroy_addr_bss(sdata, params->mac);
4fd6931e 1293
b998e8bb 1294 sta_info_flush(sdata);
4fd6931e
JB		 1295 return 0;
1296}
1297
1298static int ieee80211_change_station(struct wiphy *wiphy,
3b3a0162 1299 struct net_device *dev, const u8 *mac,
4fd6931e
JB		 1300 struct station_parameters *params)
1301{
abe60632 1302 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1303 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1304 struct sta_info *sta;
1305 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1306 enum cfg80211_station_type statype;
35b88623 1307 int err;
4fd6931e 1308
87be1e1e 1309 mutex_lock(&local->sta_mtx);
98dd6a57 1310
0e5ded5a 1311 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1312 if (!sta) {
77ee7c89
JB		 1313 err = -ENOENT;
1314 goto out_err;
98dd6a57 1315 }
4fd6931e 1316
77ee7c89
JB		 1317 switch (sdata->vif.type) {
1318 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1319 if (sdata->u.mesh.user_mpm)
eef941e6 1320 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1321 else
eef941e6 1322 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1323 break;
1324 case NL80211_IFTYPE_ADHOC:
1325 statype = CFG80211_STA_IBSS;
1326 break;
1327 case NL80211_IFTYPE_STATION:
1328 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1329 statype = CFG80211_STA_AP_STA;
1330 break;
1331 }
1332 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1333 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1334 else
1335 statype = CFG80211_STA_TDLS_PEER_SETUP;
1336 break;
1337 case NL80211_IFTYPE_AP:
1338 case NL80211_IFTYPE_AP_VLAN:
1339 statype = CFG80211_STA_AP_CLIENT;
1340 break;
1341 default:
1342 err = -EOPNOTSUPP;
1343 goto out_err;
bdd90d5e
JB		 1344 }
1345
77ee7c89
JB		 1346 err = cfg80211_check_station_change(wiphy, params, statype);
1347 if (err)
1348 goto out_err;
1349
d0709a65 1350 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1351 bool prev_4addr = false;
1352 bool new_4addr = false;
1353
4fd6931e
JB		 1354 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1355
9bc383de 1356 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1357 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1358 err = -EBUSY;
1359 goto out_err;
3305443c 1360 }
f14543ee 1361
cf778b00 1362 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1363 new_4addr = true;
1364 }
1365
1366 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1367 sta->sdata->u.vlan.sta) {
0c2bef46 1368 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
7e3ed02c 1369 prev_4addr = true;
f14543ee
FF		 1370 }
1371
14db74bc 1372 sta->sdata = vlansdata;
464daaf0 1373 ieee80211_check_fast_xmit(sta);
7e3ed02c
FF		 1374
1375 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1376 prev_4addr != new_4addr) {
1377 if (new_4addr)
1378 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1379 else
1380 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1381 }
1382
4fd6931e
JB		 1383 ieee80211_send_layer2_update(sta);
1384 }
1385
35b88623 1386 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1387 if (err)
1388 goto out_err;
4fd6931e 1389
87be1e1e 1390 mutex_unlock(&local->sta_mtx);
98dd6a57 1391
687da132
EG		 1392 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1393 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1394 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1395 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1396 sta_info_tx_streams(sta) != 1) {
1397 ht_dbg(sta->sdata,
1398 "%pM just authorized and MIMO capable - update SMPS\n",
1399 sta->sta.addr);
1400 ieee80211_send_smps_action(sta->sdata,
1401 sta->sdata->bss->req_smps,
1402 sta->sta.addr,
1403 sta->sdata->vif.bss_conf.bssid);
1404 }
1405
808118cb 1406 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1407 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1408 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1409 ieee80211_recalc_ps_vif(sdata);
1410 }
77ee7c89 1411
4fd6931e 1412 return 0;
77ee7c89
JB		 1413out_err:
1414 mutex_unlock(&local->sta_mtx);
1415 return err;
4fd6931e
JB		 1416}
1417
c5dd9c2b
LCC		 1418#ifdef CONFIG_MAC80211_MESH
1419static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1420 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1421{
14db74bc 1422 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1423 struct mesh_path *mpath;
1424 struct sta_info *sta;
c5dd9c2b 1425
14db74bc
JB		 1426 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1427
d0709a65 1428 rcu_read_lock();
abe60632 1429 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1430 if (!sta) {
1431 rcu_read_unlock();
c5dd9c2b 1432 return -ENOENT;
d0709a65 1433 }
c5dd9c2b 1434
ae76eef0
BC		 1435 mpath = mesh_path_add(sdata, dst);
1436 if (IS_ERR(mpath)) {
d0709a65 1437 rcu_read_unlock();
ae76eef0 1438 return PTR_ERR(mpath);
d0709a65 1439 }
c5dd9c2b 1440
c5dd9c2b 1441 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1442
c5dd9c2b
LCC		 1443 rcu_read_unlock();
1444 return 0;
1445}
1446
1447static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1448 const u8 *dst)
c5dd9c2b 1449{
f698d856
JBG		 1450 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1451
c5dd9c2b 1452 if (dst)
bf7cd94d 1453 return mesh_path_del(sdata, dst);
c5dd9c2b 1454
ece1a2e7 1455 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1456 return 0;
1457}
1458
3b3a0162
JB		 1459static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1460 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1461{
14db74bc 1462 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1463 struct mesh_path *mpath;
1464 struct sta_info *sta;
1465
14db74bc
JB		 1466 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1467
d0709a65
JB		 1468 rcu_read_lock();
1469
abe60632 1470 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1471 if (!sta) {
1472 rcu_read_unlock();
c5dd9c2b 1473 return -ENOENT;
d0709a65 1474 }
c5dd9c2b 1475
bf7cd94d 1476 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1477 if (!mpath) {
1478 rcu_read_unlock();
c5dd9c2b
LCC		 1479 return -ENOENT;
1480 }
1481
1482 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1483
c5dd9c2b
LCC		 1484 rcu_read_unlock();
1485 return 0;
1486}
1487
1488static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1489 struct mpath_info *pinfo)
1490{
a3836e02
JB		 1491 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1492
1493 if (next_hop_sta)
1494 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b 1495 else
c84a67a2 1496 eth_zero_addr(next_hop);
c5dd9c2b 1497
7ce8c7a3
LAYS		 1498 memset(pinfo, 0, sizeof(*pinfo));
1499
f5ea9120
JB		 1500 pinfo->generation = mesh_paths_generation;
1501
c5dd9c2b 1502 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1503 MPATH_INFO_SN |
c5dd9c2b
LCC		 1504 MPATH_INFO_METRIC |
1505 MPATH_INFO_EXPTIME |
1506 MPATH_INFO_DISCOVERY_TIMEOUT |
1507 MPATH_INFO_DISCOVERY_RETRIES |
1508 MPATH_INFO_FLAGS;
1509
1510 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1511 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1512 pinfo->metric = mpath->metric;
1513 if (time_before(jiffies, mpath->exp_time))
1514 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1515 pinfo->discovery_timeout =
1516 jiffies_to_msecs(mpath->discovery_timeout);
1517 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1518 if (mpath->flags & MESH_PATH_ACTIVE)
1519 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1520 if (mpath->flags & MESH_PATH_RESOLVING)
1521 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1522 if (mpath->flags & MESH_PATH_SN_VALID)
1523 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1524 if (mpath->flags & MESH_PATH_FIXED)
1525 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1526 if (mpath->flags & MESH_PATH_RESOLVED)
1527 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1528}
1529
1530static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1531 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1532
1533{
14db74bc 1534 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1535 struct mesh_path *mpath;
1536
14db74bc
JB		 1537 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1538
c5dd9c2b 1539 rcu_read_lock();
bf7cd94d 1540 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1541 if (!mpath) {
1542 rcu_read_unlock();
1543 return -ENOENT;
1544 }
1545 memcpy(dst, mpath->dst, ETH_ALEN);
1546 mpath_set_pinfo(mpath, next_hop, pinfo);
1547 rcu_read_unlock();
1548 return 0;
1549}
1550
1551static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1552 int idx, u8 *dst, u8 *next_hop,
1553 struct mpath_info *pinfo)
c5dd9c2b 1554{
14db74bc 1555 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1556 struct mesh_path *mpath;
1557
14db74bc
JB		 1558 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1559
c5dd9c2b 1560 rcu_read_lock();
bf7cd94d 1561 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1562 if (!mpath) {
1563 rcu_read_unlock();
1564 return -ENOENT;
1565 }
1566 memcpy(dst, mpath->dst, ETH_ALEN);
1567 mpath_set_pinfo(mpath, next_hop, pinfo);
1568 rcu_read_unlock();
1569 return 0;
1570}
93da9cc1 1571
a2db2ed3
HR		 1572static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1573 struct mpath_info *pinfo)
1574{
1575 memset(pinfo, 0, sizeof(*pinfo));
1576 memcpy(mpp, mpath->mpp, ETH_ALEN);
1577
1578 pinfo->generation = mpp_paths_generation;
1579}
1580
1581static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1582 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1583
1584{
1585 struct ieee80211_sub_if_data *sdata;
1586 struct mesh_path *mpath;
1587
1588 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1589
1590 rcu_read_lock();
1591 mpath = mpp_path_lookup(sdata, dst);
1592 if (!mpath) {
1593 rcu_read_unlock();
1594 return -ENOENT;
1595 }
1596 memcpy(dst, mpath->dst, ETH_ALEN);
1597 mpp_set_pinfo(mpath, mpp, pinfo);
1598 rcu_read_unlock();
1599 return 0;
1600}
1601
1602static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1603 int idx, u8 *dst, u8 *mpp,
1604 struct mpath_info *pinfo)
1605{
1606 struct ieee80211_sub_if_data *sdata;
1607 struct mesh_path *mpath;
1608
1609 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1610
1611 rcu_read_lock();
1612 mpath = mpp_path_lookup_by_idx(sdata, idx);
1613 if (!mpath) {
1614 rcu_read_unlock();
1615 return -ENOENT;
1616 }
1617 memcpy(dst, mpath->dst, ETH_ALEN);
1618 mpp_set_pinfo(mpath, mpp, pinfo);
1619 rcu_read_unlock();
1620 return 0;
1621}
1622
24bdd9f4 1623static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1624 struct net_device *dev,
1625 struct mesh_config *conf)
1626{
1627 struct ieee80211_sub_if_data *sdata;
1628 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1629
93da9cc1 1630 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1631 return 0;
1632}
1633
1634static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1635{
1636 return (mask >> (parm-1)) & 0x1;
1637}
1638
c80d545d
JC		 1639static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1640 const struct mesh_setup *setup)
1641{
1642 u8 *new_ie;
1643 const u8 *old_ie;
4bb62344
CYY		 1644 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1645 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1646
581a8b0f 1647 /* allocate information elements */
c80d545d 1648 new_ie = NULL;
581a8b0f 1649 old_ie = ifmsh->ie;
c80d545d 1650
581a8b0f
JC		 1651 if (setup->ie_len) {
1652 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1653 GFP_KERNEL);
1654 if (!new_ie)
1655 return -ENOMEM;
1656 }
581a8b0f
JC		 1657 ifmsh->ie_len = setup->ie_len;
1658 ifmsh->ie = new_ie;
1659 kfree(old_ie);
c80d545d
JC		 1660
1661 /* now copy the rest of the setup parameters */
1662 ifmsh->mesh_id_len = setup->mesh_id_len;
1663 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1664 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1665 ifmsh->mesh_pp_id = setup->path_sel_proto;
1666 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1667 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1668 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1669 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1670 if (setup->is_authenticated)
1671 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1672 if (setup->is_secure)
1673 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1674
4bb62344
CYY		 1675 /* mcast rate setting in Mesh Node */
1676 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1677 sizeof(setup->mcast_rate));
ffb3cf30 1678 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1679
9bdbf04d
MP		 1680 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1681 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1682
c80d545d
JC		 1683 return 0;
1684}
1685
24bdd9f4 1686static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1687 struct net_device *dev, u32 mask,
1688 const struct mesh_config *nconf)
93da9cc1 1689{
1690 struct mesh_config *conf;
1691 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1692 struct ieee80211_if_mesh *ifmsh;
1693
93da9cc1 1694 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1695 ifmsh = &sdata->u.mesh;
93da9cc1 1696
93da9cc1 1697 /* Set the config options which we are interested in setting */
1698 conf = &(sdata->u.mesh.mshcfg);
1699 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1700 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1701 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1702 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1703 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1704 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1705 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1706 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1707 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1708 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1709 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1710 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1711 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1712 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1713 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1714 if (ifmsh->user_mpm)
1715 return -EBUSY;
93da9cc1 1716 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1717 }
d299a1f2
JC		 1718 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1719 conf->dot11MeshNbrOffsetMaxNeighbor =
1720 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1721 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1722 conf->dot11MeshHWMPmaxPREQretries =
1723 nconf->dot11MeshHWMPmaxPREQretries;
1724 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1725 conf->path_refresh_time = nconf->path_refresh_time;
1726 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1727 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1728 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1729 conf->dot11MeshHWMPactivePathTimeout =
1730 nconf->dot11MeshHWMPactivePathTimeout;
1731 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1732 conf->dot11MeshHWMPpreqMinInterval =
1733 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1734 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1735 conf->dot11MeshHWMPperrMinInterval =
1736 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1737 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1738 mask))
1739 conf->dot11MeshHWMPnetDiameterTraversalTime =
1740 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1741 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1742 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1743 ieee80211_mesh_root_setup(ifmsh);
1744 }
16dd7267 1745 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1746 /* our current gate announcement implementation rides on root
1747 * announcements, so require this ifmsh to also be a root node
1748 * */
1749 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1750 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1751 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1752 ieee80211_mesh_root_setup(ifmsh);
1753 }
16dd7267
JC		 1754 conf->dot11MeshGateAnnouncementProtocol =
1755 nconf->dot11MeshGateAnnouncementProtocol;
1756 }
a4f606ea 1757 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1758 conf->dot11MeshHWMPRannInterval =
1759 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1760 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1761 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1762 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1763 /* our RSSI threshold implementation is supported only for
1764 * devices that report signal in dBm.
1765 */
30686bf7 1766 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
55335137
AN		 1767 return -ENOTSUPP;
1768 conf->rssi_threshold = nconf->rssi_threshold;
1769 }
70c33eaa
AN		 1770 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1771 conf->ht_opmode = nconf->ht_opmode;
1772 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1773 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1774 }
ac1073a6
CYY		 1775 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1776 conf->dot11MeshHWMPactivePathToRootTimeout =
1777 nconf->dot11MeshHWMPactivePathToRootTimeout;
1778 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1779 conf->dot11MeshHWMProotInterval =
1780 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1781 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1782 conf->dot11MeshHWMPconfirmationInterval =
1783 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1784 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1785 conf->power_mode = nconf->power_mode;
1786 ieee80211_mps_local_status_update(sdata);
1787 }
2b5e1967 1788 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1789 conf->dot11MeshAwakeWindowDuration =
1790 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1791 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1792 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1793 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1794 return 0;
1795}
1796
29cbe68c
JB		 1797static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1798 const struct mesh_config *conf,
1799 const struct mesh_setup *setup)
1800{
1801 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1802 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1803 int err;
29cbe68c 1804
c80d545d
JC		 1805 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1806 err = copy_mesh_setup(ifmsh, setup);
1807 if (err)
1808 return err;
cc1d2806 1809
04ecd257
JB		 1810 /* can mesh use other SMPS modes? */
1811 sdata->smps_mode = IEEE80211_SMPS_OFF;
1812 sdata->needed_rx_chains = sdata->local->rx_chains;
1813
34a3740d 1814 mutex_lock(&sdata->local->mtx);
4bf88530 1815 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1816 IEEE80211_CHANCTX_SHARED);
34a3740d 1817 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1818 if (err)
1819 return err;
1820
2b5e1967 1821 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1822}
1823
1824static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1825{
1826 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1827
1828 ieee80211_stop_mesh(sdata);
34a3740d 1829 mutex_lock(&sdata->local->mtx);
55de908a 1830 ieee80211_vif_release_channel(sdata);
34a3740d 1831 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1832
1833 return 0;
1834}
c5dd9c2b
LCC		 1835#endif
1836
9f1ba906
JM		 1837static int ieee80211_change_bss(struct wiphy *wiphy,
1838 struct net_device *dev,
1839 struct bss_parameters *params)
1840{
55de908a
JB		 1841 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1842 enum ieee80211_band band;
9f1ba906
JM		 1843 u32 changed = 0;
1844
7ca133bc 1845 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1846 return -ENOENT;
1847
1848 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1849
9f1ba906 1850 if (params->use_cts_prot >= 0) {
bda3933a 1851 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1852 changed |= BSS_CHANGED_ERP_CTS_PROT;
1853 }
1854 if (params->use_short_preamble >= 0) {
bda3933a 1855 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1856 params->use_short_preamble;
1857 changed |= BSS_CHANGED_ERP_PREAMBLE;
1858 }
43d35343
FF		 1859
1860 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1861 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1862 sdata->vif.bss_conf.use_short_slot = true;
1863 changed |= BSS_CHANGED_ERP_SLOT;
1864 }
1865
9f1ba906 1866 if (params->use_short_slot_time >= 0) {
bda3933a 1867 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1868 params->use_short_slot_time;
1869 changed |= BSS_CHANGED_ERP_SLOT;
1870 }
1871
90c97a04 1872 if (params->basic_rates) {
2103dec1
SW		 1873 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1874 wiphy->bands[band],
1875 params->basic_rates,
1876 params->basic_rates_len,
1877 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 1878 changed |= BSS_CHANGED_BASIC_RATES;
1879 }
1880
7b7b5e56
FF		 1881 if (params->ap_isolate >= 0) {
1882 if (params->ap_isolate)
1883 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1884 else
1885 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1886 }
1887
80d7e403
HS		 1888 if (params->ht_opmode >= 0) {
1889 sdata->vif.bss_conf.ht_operation_mode =
1890 (u16) params->ht_opmode;
1891 changed |= BSS_CHANGED_HT;
1892 }
1893
339afbf4 1894 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1895 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1896 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1897 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1898 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1899 changed |= BSS_CHANGED_P2P_PS;
1900 }
1901
67baf663
JD		 1902 if (params->p2p_opp_ps > 0) {
1903 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1904 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1905 changed |= BSS_CHANGED_P2P_PS;
1906 } else if (params->p2p_opp_ps == 0) {
1907 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1908 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1909 changed |= BSS_CHANGED_P2P_PS;
1910 }
1911
9f1ba906
JM		 1912 ieee80211_bss_info_change_notify(sdata, changed);
1913
1914 return 0;
1915}
1916
31888487 1917static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1918 struct net_device *dev,
31888487
JM		 1919 struct ieee80211_txq_params *params)
1920{
1921 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1922 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1923 struct ieee80211_tx_queue_params p;
1924
1925 if (!local->ops->conf_tx)
1926 return -EOPNOTSUPP;
1927
54bcbc69
JB		 1928 if (local->hw.queues < IEEE80211_NUM_ACS)
1929 return -EOPNOTSUPP;
1930
31888487
JM		 1931 memset(&p, 0, sizeof(p));
1932 p.aifs = params->aifs;
1933 p.cw_max = params->cwmax;
1934 p.cw_min = params->cwmin;
1935 p.txop = params->txop;
ab13315a
KV		 1936
1937 /*
1938 * Setting tx queue params disables u-apsd because it's only
1939 * called in master mode.
1940 */
1941 p.uapsd = false;
1942
a3304b0a
JB		 1943 sdata->tx_conf[params->ac] = p;
1944 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 1945 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 1946 "failed to set TX queue parameters for AC %d\n",
1947 params->ac);
31888487
JM		 1948 return -EINVAL;
1949 }
1950
7d25745d
JB		 1951 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1952
31888487
JM		 1953 return 0;
1954}
1955
665af4fc 1956#ifdef CONFIG_PM
ff1b6e69
JB		 1957static int ieee80211_suspend(struct wiphy *wiphy,
1958 struct cfg80211_wowlan *wowlan)
665af4fc 1959{
eecc4800 1960 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1961}
1962
1963static int ieee80211_resume(struct wiphy *wiphy)
1964{
1965 return __ieee80211_resume(wiphy_priv(wiphy));
1966}
1967#else
1968#define ieee80211_suspend NULL
1969#define ieee80211_resume NULL
1970#endif
1971
2a519311 1972static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 1973 struct cfg80211_scan_request *req)
1974{
fd014284
JB		 1975 struct ieee80211_sub_if_data *sdata;
1976
1977 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 1978
2ca27bcf
JB		 1979 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1980 case NL80211_IFTYPE_STATION:
1981 case NL80211_IFTYPE_ADHOC:
1982 case NL80211_IFTYPE_MESH_POINT:
1983 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 1984 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 1985 break;
1986 case NL80211_IFTYPE_P2P_GO:
1987 if (sdata->local->ops->hw_scan)
1988 break;
e9d7732e
JB		 1989 /*
1990 * FIXME: implement NoA while scanning in software,
1991 * for now fall through to allow scanning only when
1992 * beaconing hasn't been configured yet
1993 */
2ca27bcf 1994 case NL80211_IFTYPE_AP:
5c95b940
AQ		 1995 /*
1996 * If the scan has been forced (and the driver supports
1997 * forcing), don't care about being beaconing already.
1998 * This will create problems to the attached stations (e.g. all
1999 * the frames sent while scanning on other channel will be
2000 * lost)
2001 */
2002 if (sdata->u.ap.beacon &&
2003 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2004 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2005 return -EOPNOTSUPP;
2006 break;
2007 default:
2008 return -EOPNOTSUPP;
2009 }
2a519311
JB		 2010
2011 return ieee80211_request_scan(sdata, req);
2012}
2013
79f460ca
LC		 2014static int
2015ieee80211_sched_scan_start(struct wiphy *wiphy,
2016 struct net_device *dev,
2017 struct cfg80211_sched_scan_request *req)
2018{
2019 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2020
2021 if (!sdata->local->ops->sched_scan_start)
2022 return -EOPNOTSUPP;
2023
2024 return ieee80211_request_sched_scan_start(sdata, req);
2025}
2026
2027static int
85a9994a 2028ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 2029{
2030 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2031
2032 if (!sdata->local->ops->sched_scan_stop)
2033 return -EOPNOTSUPP;
2034
85a9994a 2035 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 2036}
2037
636a5d36
JM		 2038static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2039 struct cfg80211_auth_request *req)
2040{
77fdaa12 2041 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2042}
2043
2044static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2045 struct cfg80211_assoc_request *req)
2046{
77fdaa12 2047 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2048}
2049
2050static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2051 struct cfg80211_deauth_request *req)
636a5d36 2052{
63c9c5e7 2053 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2054}
2055
2056static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2057 struct cfg80211_disassoc_request *req)
636a5d36 2058{
63c9c5e7 2059 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2060}
2061
af8cdcd8
JB		 2062static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2063 struct cfg80211_ibss_params *params)
2064{
55de908a 2065 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2066}
2067
2068static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2069{
55de908a 2070 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2071}
2072
239281f8
RL		 2073static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2074 struct ocb_setup *setup)
2075{
2076 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2077}
2078
2079static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2080{
2081 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2082}
2083
391e53e3
AQ		 2084static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2085 int rate[IEEE80211_NUM_BANDS])
2086{
2087 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2088
9887dbf5
CD		 2089 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2090 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 2091
2092 return 0;
2093}
2094
b9a5f8ca
JM		 2095static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2096{
2097 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2098 int err;
b9a5f8ca 2099
f23a4780 2100 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
17c18bf8
JB		 2101 ieee80211_check_fast_xmit_all(local);
2102
f23a4780
AN		 2103 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2104
17c18bf8
JB		 2105 if (err) {
2106 ieee80211_check_fast_xmit_all(local);
f23a4780 2107 return err;
17c18bf8 2108 }
f23a4780
AN		 2109 }
2110
a4bcaf55
LB		 2111 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2112 (changed & WIPHY_PARAM_DYN_ACK)) {
2113 s16 coverage_class;
2114
2115 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2116 wiphy->coverage_class : -1;
2117 err = drv_set_coverage_class(local, coverage_class);
310bc676
LT		 2118
2119 if (err)
2120 return err;
2121 }
2122
b9a5f8ca 2123 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2124 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2125
24487981
JB		 2126 if (err)
2127 return err;
b9a5f8ca
JM		 2128 }
2129
8bc83c24
JB		 2130 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2131 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2132 return -EINVAL;
b9a5f8ca 2133 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2134 }
2135 if (changed & WIPHY_PARAM_RETRY_LONG) {
2136 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2137 return -EINVAL;
b9a5f8ca 2138 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2139 }
b9a5f8ca
JM		 2140 if (changed &
2141 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2142 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2143
2144 return 0;
2145}
2146
7643a2c3 2147static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2148 struct wireless_dev *wdev,
fa61cf70 2149 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2150{
2151 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2152 struct ieee80211_sub_if_data *sdata;
db82d8a9
LB		 2153 enum nl80211_tx_power_setting txp_type = type;
2154 bool update_txp_type = false;
7643a2c3 2155
1ea6f9c0
JB		 2156 if (wdev) {
2157 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2158
2159 switch (type) {
2160 case NL80211_TX_POWER_AUTOMATIC:
2161 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2162 txp_type = NL80211_TX_POWER_LIMITED;
1ea6f9c0
JB		 2163 break;
2164 case NL80211_TX_POWER_LIMITED:
2165 case NL80211_TX_POWER_FIXED:
2166 if (mbm < 0 || (mbm % 100))
2167 return -EOPNOTSUPP;
2168 sdata->user_power_level = MBM_TO_DBM(mbm);
2169 break;
2170 }
2171
db82d8a9
LB		 2172 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2173 update_txp_type = true;
2174 sdata->vif.bss_conf.txpower_type = txp_type;
2175 }
2176
2177 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0
JB		 2178
2179 return 0;
2180 }
55de908a 2181
7643a2c3 2182 switch (type) {
fa61cf70 2183 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2184 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2185 txp_type = NL80211_TX_POWER_LIMITED;
7643a2c3 2186 break;
fa61cf70 2187 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2188 case NL80211_TX_POWER_FIXED:
2189 if (mbm < 0 || (mbm % 100))
2190 return -EOPNOTSUPP;
fa61cf70 2191 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2192 break;
7643a2c3
JB		 2193 }
2194
1ea6f9c0 2195 mutex_lock(&local->iflist_mtx);
db82d8a9 2196 list_for_each_entry(sdata, &local->interfaces, list) {
1ea6f9c0 2197 sdata->user_power_level = local->user_power_level;
db82d8a9
LB		 2198 if (txp_type != sdata->vif.bss_conf.txpower_type)
2199 update_txp_type = true;
2200 sdata->vif.bss_conf.txpower_type = txp_type;
2201 }
1ea6f9c0 2202 list_for_each_entry(sdata, &local->interfaces, list)
db82d8a9 2203 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0 2204 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2205
2206 return 0;
2207}
2208
c8442118
JB		 2209static int ieee80211_get_tx_power(struct wiphy *wiphy,
2210 struct wireless_dev *wdev,
2211 int *dbm)
7643a2c3
JB		 2212{
2213 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2214 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2215
5b3dc42b
FF		 2216 if (local->ops->get_txpower)
2217 return drv_get_txpower(local, sdata, dbm);
2218
1ea6f9c0
JB		 2219 if (!local->use_chanctx)
2220 *dbm = local->hw.conf.power_level;
2221 else
2222 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2223
7643a2c3
JB		 2224 return 0;
2225}
2226
ab737a4f 2227static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2228 const u8 *addr)
ab737a4f
JB		 2229{
2230 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2231
2232 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2233
2234 return 0;
2235}
2236
1f87f7d3
JB		 2237static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2238{
2239 struct ieee80211_local *local = wiphy_priv(wiphy);
2240
2241 drv_rfkill_poll(local);
2242}
2243
aff89a9b 2244#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2245static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2246 struct wireless_dev *wdev,
2247 void *data, int len)
aff89a9b
JB		 2248{
2249 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2250 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2251
2252 if (!local->ops->testmode_cmd)
2253 return -EOPNOTSUPP;
2254
52981cd7
DS		 2255 if (wdev) {
2256 struct ieee80211_sub_if_data *sdata;
2257
2258 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2259 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2260 vif = &sdata->vif;
2261 }
2262
2263 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2264}
71063f0e
WYG		 2265
2266static int ieee80211_testmode_dump(struct wiphy *wiphy,
2267 struct sk_buff *skb,
2268 struct netlink_callback *cb,
2269 void *data, int len)
2270{
2271 struct ieee80211_local *local = wiphy_priv(wiphy);
2272
2273 if (!local->ops->testmode_dump)
2274 return -EOPNOTSUPP;
2275
2276 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2277}
aff89a9b
JB		 2278#endif
2279
687da132
EG		 2280int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2281 enum ieee80211_smps_mode smps_mode)
2282{
2283 struct sta_info *sta;
2284 enum ieee80211_smps_mode old_req;
687da132
EG		 2285
2286 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2287 return -EINVAL;
2288
2289 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2290 return 0;
2291
2292 old_req = sdata->u.ap.req_smps;
2293 sdata->u.ap.req_smps = smps_mode;
2294
2295 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2296 if (old_req == smps_mode ||
2297 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2298 return 0;
2299
2300 /* If no associated stations, there's no need to do anything */
2301 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2302 sdata->smps_mode = smps_mode;
2303 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2304 return 0;
2305 }
2306
2307 ht_dbg(sdata,
6a8b4adb 2308 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
687da132
EG		 2309 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2310
2311 mutex_lock(&sdata->local->sta_mtx);
7d9bb2f0
JB		 2312 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2313 /*
2314 * Only stations associated to our AP and
2315 * associated VLANs
2316 */
2317 if (sta->sdata->bss != &sdata->u.ap)
2318 continue;
687da132 2319
7d9bb2f0
JB		 2320 /* This station doesn't support MIMO - skip it */
2321 if (sta_info_tx_streams(sta) == 1)
2322 continue;
687da132 2323
7d9bb2f0
JB		 2324 /*
2325 * Don't wake up a STA just to send the action frame
2326 * unless we are getting more restrictive.
2327 */
2328 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2329 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2330 smps_mode)) {
2331 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2332 sta->sta.addr);
2333 continue;
2334 }
687da132 2335
7d9bb2f0
JB		 2336 /*
2337 * If the STA is not authorized, wait until it gets
2338 * authorized and the action frame will be sent then.
2339 */
2340 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2341 continue;
687da132 2342
7d9bb2f0
JB		 2343 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2344 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2345 sdata->vif.bss_conf.bssid);
687da132
EG		 2346 }
2347 mutex_unlock(&sdata->local->sta_mtx);
2348
2349 sdata->smps_mode = smps_mode;
2350 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2351
2352 return 0;
2353}
2354
2355int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2356 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2357{
2358 const u8 *ap;
2359 enum ieee80211_smps_mode old_req;
2360 int err;
2361
8d61ffa5 2362 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2363
687da132
EG		 2364 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2365 return -EINVAL;
2366
0f78231b
JB		 2367 old_req = sdata->u.mgd.req_smps;
2368 sdata->u.mgd.req_smps = smps_mode;
2369
2370 if (old_req == smps_mode &&
2371 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2372 return 0;
2373
2374 /*
2375 * If not associated, or current association is not an HT
04ecd257
JB		 2376 * association, there's no need to do anything, just store
2377 * the new value until we associate.
0f78231b
JB		 2378 */
2379 if (!sdata->u.mgd.associated ||
4bf88530 2380 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2381 return 0;
0f78231b 2382
0c1ad2ca 2383 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2384
2385 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2386 if (sdata->u.mgd.powersave)
2387 smps_mode = IEEE80211_SMPS_DYNAMIC;
2388 else
2389 smps_mode = IEEE80211_SMPS_OFF;
2390 }
2391
2392 /* send SM PS frame to AP */
2393 err = ieee80211_send_smps_action(sdata, smps_mode,
2394 ap, ap);
2395 if (err)
2396 sdata->u.mgd.req_smps = old_req;
2397
2398 return err;
2399}
2400
bc92afd9
JB		 2401static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2402 bool enabled, int timeout)
2403{
2404 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2405 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2406
2d3db210 2407 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2408 return -EOPNOTSUPP;
2409
30686bf7 2410 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
bc92afd9
JB		 2411 return -EOPNOTSUPP;
2412
2413 if (enabled == sdata->u.mgd.powersave &&
ff616381 2414 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2415 return 0;
2416
2417 sdata->u.mgd.powersave = enabled;
ff616381 2418 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2419
0f78231b 2420 /* no change, but if automatic follow powersave */
ed405be5 2421 sdata_lock(sdata);
687da132 2422 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2423 sdata_unlock(sdata);
0f78231b 2424
30686bf7 2425 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
bc92afd9
JB		 2426 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2427
2428 ieee80211_recalc_ps(local, -1);
ab095877 2429 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2430
2431 return 0;
2432}
2433
a97c13c3
JO		 2434static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2435 struct net_device *dev,
2436 s32 rssi_thold, u32 rssi_hyst)
2437{
2438 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2439 struct ieee80211_vif *vif = &sdata->vif;
2440 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2441
a97c13c3
JO		 2442 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2443 rssi_hyst == bss_conf->cqm_rssi_hyst)
2444 return 0;
2445
2446 bss_conf->cqm_rssi_thold = rssi_thold;
2447 bss_conf->cqm_rssi_hyst = rssi_hyst;
2448
2449 /* tell the driver upon association, unless already associated */
ea086359
JB		 2450 if (sdata->u.mgd.associated &&
2451 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2452 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2453
2454 return 0;
2455}
2456
9930380f
JB		 2457static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2458 struct net_device *dev,
2459 const u8 *addr,
2460 const struct cfg80211_bitrate_mask *mask)
2461{
2462 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2463 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2464 int i, ret;
2c7e6bc9 2465
554a43d5
EP		 2466 if (!ieee80211_sdata_running(sdata))
2467 return -ENETDOWN;
2468
30686bf7 2469 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
bdbfd6b5
SM		 2470 ret = drv_set_bitrate_mask(local, sdata, mask);
2471 if (ret)
2472 return ret;
2473 }
9930380f 2474
19468413 2475 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2476 struct ieee80211_supported_band *sband = wiphy->bands[i];
2477 int j;
2478
37eb0b16 2479 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2480 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2481 sizeof(mask->control[i].ht_mcs));
2ffbe6d3
FF		 2482
2483 sdata->rc_has_mcs_mask[i] = false;
2484 if (!sband)
2485 continue;
2486
2487 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2488 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2489 sdata->rc_has_mcs_mask[i] = true;
2490 break;
2491 }
19468413 2492 }
9930380f 2493
37eb0b16 2494 return 0;
9930380f
JB		 2495}
2496
eaa336b0
EP		 2497static bool ieee80211_coalesce_started_roc(struct ieee80211_local *local,
2498 struct ieee80211_roc_work *new_roc,
2499 struct ieee80211_roc_work *cur_roc)
2500{
252ec2b3
JB		 2501 unsigned long now = jiffies;
2502 unsigned long remaining = cur_roc->hw_start_time +
2503 msecs_to_jiffies(cur_roc->duration) -
2504 now;
eaa336b0
EP		 2505
2506 if (WARN_ON(!cur_roc->started || !cur_roc->hw_begun))
2507 return false;
2508
252ec2b3
JB		 2509 /* if it doesn't fit entirely, schedule a new one */
2510 if (new_roc->duration > jiffies_to_msecs(remaining))
eaa336b0
EP		 2511 return false;
2512
2513 ieee80211_handle_roc_started(new_roc);
2514
252ec2b3
JB		 2515 /* add to dependents so we send the expired event properly */
2516 list_add_tail(&new_roc->list, &cur_roc->dependents);
eaa336b0
EP		 2517 return true;
2518}
2519
3b79af97
JB		 2520static u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
2521{
2522 lockdep_assert_held(&local->mtx);
2523
2524 local->roc_cookie_counter++;
2525
2526 /* wow, you wrapped 64 bits ... more likely a bug */
2527 if (WARN_ON(local->roc_cookie_counter == 0))
2528 local->roc_cookie_counter++;
2529
2530 return local->roc_cookie_counter;
2531}
2532
2eb278e0
JB		 2533static int ieee80211_start_roc_work(struct ieee80211_local *local,
2534 struct ieee80211_sub_if_data *sdata,
2535 struct ieee80211_channel *channel,
2eb278e0 2536 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2537 struct sk_buff *txskb,
2538 enum ieee80211_roc_type type)
2eb278e0
JB		 2539{
2540 struct ieee80211_roc_work *roc, *tmp;
2541 bool queued = false;
21f83589 2542 int ret;
21f83589
JB		 2543
2544 lockdep_assert_held(&local->mtx);
2545
fe57d9f5
JB		 2546 if (local->use_chanctx && !local->ops->remain_on_channel)
2547 return -EOPNOTSUPP;
2548
2eb278e0
JB		 2549 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2550 if (!roc)
2551 return -ENOMEM;
2552
2fae062e
IP		 2553 /*
2554 * If the duration is zero, then the driver
2555 * wouldn't actually do anything. Set it to
2556 * 10 for now.
2557 *
2558 * TODO: cancel the off-channel operation
2559 * when we get the SKB's TX status and
2560 * the wait time was zero before.
2561 */
2562 if (!duration)
2563 duration = 10;
2564
2eb278e0 2565 roc->chan = channel;
2eb278e0
JB		 2566 roc->duration = duration;
2567 roc->req_duration = duration;
2568 roc->frame = txskb;
d339d5ca 2569 roc->type = type;
2eb278e0
JB		 2570 roc->sdata = sdata;
2571 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2572 INIT_LIST_HEAD(&roc->dependents);
2573
2f617435
EP		 2574 /*
2575 * cookie is either the roc cookie (for normal roc)
2576 * or the SKB (for mgmt TX)
2577 */
2578 if (!txskb) {
3b79af97 2579 roc->cookie = ieee80211_mgmt_tx_cookie(local);
2f617435
EP		 2580 *cookie = roc->cookie;
2581 } else {
3b79af97 2582 roc->mgmt_tx_cookie = *cookie;
2f617435
EP		 2583 }
2584
2eb278e0 2585 /* if there's one pending or we're scanning, queue this one */
164eb02d 2586 if (!list_empty(&local->roc_list) ||
5cbc95a7 2587 local->scanning || ieee80211_is_radar_required(local))
2eb278e0
JB		 2588 goto out_check_combine;
2589
2590 /* if not HW assist, just queue & schedule work */
2591 if (!local->ops->remain_on_channel) {
2592 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2593 goto out_queue;
2594 }
2595
2596 /* otherwise actually kick it off here (for error handling) */
2597
d339d5ca 2598 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2599 if (ret) {
2eb278e0
JB		 2600 kfree(roc);
2601 return ret;
21f83589
JB		 2602 }
2603
2eb278e0
JB		 2604 roc->started = true;
2605 goto out_queue;
2606
2607 out_check_combine:
2608 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2609 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2610 continue;
2611
2612 /*
2613 * Extend this ROC if possible:
2614 *
2615 * If it hasn't started yet, just increase the duration
2616 * and add the new one to the list of dependents.
d339d5ca
IP		 2617 * If the type of the new ROC has higher priority, modify the
2618 * type of the previous one to match that of the new one.
2eb278e0
JB		 2619 */
2620 if (!tmp->started) {
2621 list_add_tail(&roc->list, &tmp->dependents);
2622 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2623 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2624 queued = true;
2625 break;
2626 }
2627
2628 /* If it has already started, it's more difficult ... */
2629 if (local->ops->remain_on_channel) {
2eb278e0
JB		 2630 /*
2631 * In the offloaded ROC case, if it hasn't begun, add
2632 * this new one to the dependent list to be handled
d339d5ca 2633 * when the master one begins. If it has begun,
252ec2b3
JB		 2634 * check if it fits entirely within the existing one,
2635 * in which case it will just be dependent as well.
2636 * Otherwise, schedule it by itself.
2eb278e0
JB		 2637 */
2638 if (!tmp->hw_begun) {
2639 list_add_tail(&roc->list, &tmp->dependents);
2640 queued = true;
2641 break;
2642 }
2643
eaa336b0 2644 if (ieee80211_coalesce_started_roc(local, roc, tmp))
2eb278e0 2645 queued = true;
2eb278e0
JB		 2646 } else if (del_timer_sync(&tmp->work.timer)) {
2647 unsigned long new_end;
2648
2649 /*
2650 * In the software ROC case, cancel the timer, if
2651 * that fails then the finish work is already
2652 * queued/pending and thus we queue the new ROC
2653 * normally, if that succeeds then we can extend
2654 * the timer duration and TX the frame (if any.)
2655 */
2656
2657 list_add_tail(&roc->list, &tmp->dependents);
2658 queued = true;
2659
2660 new_end = jiffies + msecs_to_jiffies(roc->duration);
2661
2662 /* ok, it was started & we canceled timer */
2663 if (time_after(new_end, tmp->work.timer.expires))
2664 mod_timer(&tmp->work.timer, new_end);
2665 else
2666 add_timer(&tmp->work.timer);
2667
2668 ieee80211_handle_roc_started(roc);
2669 }
2670 break;
2671 }
2672
2673 out_queue:
2674 if (!queued)
2675 list_add_tail(&roc->list, &local->roc_list);
2676
2eb278e0 2677 return 0;
21f83589
JB		 2678}
2679
b8bc4b0a 2680static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2681 struct wireless_dev *wdev,
b8bc4b0a 2682 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2683 unsigned int duration,
2684 u64 *cookie)
2685{
71bbc994 2686 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2687 struct ieee80211_local *local = sdata->local;
2eb278e0 2688 int ret;
21f83589 2689
2eb278e0 2690 mutex_lock(&local->mtx);
42d97a59 2691 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2692 duration, cookie, NULL,
2693 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2694 mutex_unlock(&local->mtx);
b8bc4b0a 2695
2eb278e0 2696 return ret;
b8bc4b0a
JB		 2697}
2698
2eb278e0
JB		 2699static int ieee80211_cancel_roc(struct ieee80211_local *local,
2700 u64 cookie, bool mgmt_tx)
21f83589 2701{
2eb278e0 2702 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2703 int ret;
2704
2eb278e0
JB		 2705 mutex_lock(&local->mtx);
2706 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2707 struct ieee80211_roc_work *dep, *tmp2;
2708
2709 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2710 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2711 continue;
2712 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2713 continue;
2714 /* found dependent item -- just remove it */
2715 list_del(&dep->list);
2716 mutex_unlock(&local->mtx);
2717
3fbd45ca 2718 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2719 return 0;
2720 }
2721
50febf6a 2722 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2723 continue;
2724 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2725 continue;
21f83589 2726
2eb278e0
JB		 2727 found = roc;
2728 break;
2729 }
21f83589 2730
2eb278e0
JB		 2731 if (!found) {
2732 mutex_unlock(&local->mtx);
2733 return -ENOENT;
2734 }
21f83589 2735
e979e33c
JB		 2736 /*
2737 * We found the item to cancel, so do that. Note that it
2738 * may have dependents, which we also cancel (and send
2739 * the expired signal for.) Not doing so would be quite
2740 * tricky here, but we may need to fix it later.
2741 */
2742
2eb278e0
JB		 2743 if (local->ops->remain_on_channel) {
2744 if (found->started) {
2745 ret = drv_cancel_remain_on_channel(local);
2746 if (WARN_ON_ONCE(ret)) {
2747 mutex_unlock(&local->mtx);
2748 return ret;
2749 }
2750 }
21f83589 2751
2eb278e0 2752 list_del(&found->list);
21f83589 2753
0f6b3f59
JB		 2754 if (found->started)
2755 ieee80211_start_next_roc(local);
2eb278e0 2756 mutex_unlock(&local->mtx);
21f83589 2757
3fbd45ca 2758 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2759 } else {
2760 /* work may be pending so use it all the time */
2761 found->abort = true;
2762 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2763
21f83589
JB		 2764 mutex_unlock(&local->mtx);
2765
2eb278e0
JB		 2766 /* work will clean up etc */
2767 flush_delayed_work(&found->work);
3fbd45ca
JB		 2768 WARN_ON(!found->to_be_freed);
2769 kfree(found);
21f83589 2770 }
b8bc4b0a 2771
2eb278e0 2772 return 0;
b8bc4b0a
JB		 2773}
2774
2eb278e0 2775static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2776 struct wireless_dev *wdev,
2eb278e0 2777 u64 cookie)
f30221e4 2778{
71bbc994 2779 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2780 struct ieee80211_local *local = sdata->local;
f30221e4 2781
2eb278e0 2782 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2783}
2784
164eb02d
SW		 2785static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2786 struct net_device *dev,
31559f35
JD		 2787 struct cfg80211_chan_def *chandef,
2788 u32 cac_time_ms)
164eb02d
SW		 2789{
2790 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2791 struct ieee80211_local *local = sdata->local;
164eb02d
SW		 2792 int err;
2793
34a3740d
JB		 2794 mutex_lock(&local->mtx);
2795 if (!list_empty(&local->roc_list) || local->scanning) {
2796 err = -EBUSY;
2797 goto out_unlock;
2798 }
164eb02d
SW		 2799
2800 /* whatever, but channel contexts should not complain about that one */
2801 sdata->smps_mode = IEEE80211_SMPS_OFF;
2802 sdata->needed_rx_chains = local->rx_chains;
164eb02d 2803
164eb02d
SW		 2804 err = ieee80211_vif_use_channel(sdata, chandef,
2805 IEEE80211_CHANCTX_SHARED);
164eb02d 2806 if (err)
34a3740d 2807 goto out_unlock;
164eb02d 2808
164eb02d 2809 ieee80211_queue_delayed_work(&sdata->local->hw,
31559f35
JD		 2810 &sdata->dfs_cac_timer_work,
2811 msecs_to_jiffies(cac_time_ms));
164eb02d 2812
34a3740d
JB		 2813 out_unlock:
2814 mutex_unlock(&local->mtx);
2815 return err;
164eb02d
SW		 2816}
2817
73da7d5b
SW		 2818static struct cfg80211_beacon_data *
2819cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2820{
2821 struct cfg80211_beacon_data *new_beacon;
2822 u8 *pos;
2823 int len;
2824
2825 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2826 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2827 beacon->probe_resp_len;
2828
2829 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2830 if (!new_beacon)
2831 return NULL;
2832
2833 pos = (u8 *)(new_beacon + 1);
2834 if (beacon->head_len) {
2835 new_beacon->head_len = beacon->head_len;
2836 new_beacon->head = pos;
2837 memcpy(pos, beacon->head, beacon->head_len);
2838 pos += beacon->head_len;
2839 }
2840 if (beacon->tail_len) {
2841 new_beacon->tail_len = beacon->tail_len;
2842 new_beacon->tail = pos;
2843 memcpy(pos, beacon->tail, beacon->tail_len);
2844 pos += beacon->tail_len;
2845 }
2846 if (beacon->beacon_ies_len) {
2847 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2848 new_beacon->beacon_ies = pos;
2849 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2850 pos += beacon->beacon_ies_len;
2851 }
2852 if (beacon->proberesp_ies_len) {
2853 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2854 new_beacon->proberesp_ies = pos;
2855 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2856 pos += beacon->proberesp_ies_len;
2857 }
2858 if (beacon->assocresp_ies_len) {
2859 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2860 new_beacon->assocresp_ies = pos;
2861 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2862 pos += beacon->assocresp_ies_len;
2863 }
2864 if (beacon->probe_resp_len) {
2865 new_beacon->probe_resp_len = beacon->probe_resp_len;
2866 beacon->probe_resp = pos;
2867 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2868 pos += beacon->probe_resp_len;
2869 }
2870
2871 return new_beacon;
2872}
2873
66e01cf9 2874void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2875{
66e01cf9 2876 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2877
66e01cf9
LC		 2878 ieee80211_queue_work(&sdata->local->hw,
2879 &sdata->csa_finalize_work);
2880}
2881EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 2882
66199506
MK		 2883static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2884 u32 *changed)
66e01cf9 2885{
66199506 2886 int err;
7578d575 2887
cd7760e6
SW		 2888 switch (sdata->vif.type) {
2889 case NL80211_IFTYPE_AP:
af296bdb
MK		 2890 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2891 NULL);
97518af1
MK		 2892 kfree(sdata->u.ap.next_beacon);
2893 sdata->u.ap.next_beacon = NULL;
2894
cd7760e6 2895 if (err < 0)
66199506
MK		 2896 return err;
2897 *changed |= err;
cd7760e6
SW		 2898 break;
2899 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 2900 err = ieee80211_ibss_finish_csa(sdata);
2901 if (err < 0)
66199506
MK		 2902 return err;
2903 *changed |= err;
cd7760e6 2904 break;
b8456a14
CYY		 2905#ifdef CONFIG_MAC80211_MESH
2906 case NL80211_IFTYPE_MESH_POINT:
2907 err = ieee80211_mesh_finish_csa(sdata);
2908 if (err < 0)
66199506
MK		 2909 return err;
2910 *changed |= err;
b8456a14
CYY		 2911 break;
2912#endif
cd7760e6
SW		 2913 default:
2914 WARN_ON(1);
66199506
MK		 2915 return -EINVAL;
2916 }
2917
2918 return 0;
2919}
2920
cf8767dd 2921static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
66199506
MK		 2922{
2923 struct ieee80211_local *local = sdata->local;
2924 u32 changed = 0;
2925 int err;
2926
2927 sdata_assert_lock(sdata);
2928 lockdep_assert_held(&local->mtx);
03078de4 2929 lockdep_assert_held(&local->chanctx_mtx);
66199506 2930
03078de4
MK		 2931 /*
2932 * using reservation isn't immediate as it may be deferred until later
2933 * with multi-vif. once reservation is complete it will re-schedule the
2934 * work with no reserved_chanctx so verify chandef to check if it
2935 * completed successfully
2936 */
66199506 2937
03078de4
MK		 2938 if (sdata->reserved_chanctx) {
2939 /*
2940 * with multi-vif csa driver may call ieee80211_csa_finish()
2941 * many times while waiting for other interfaces to use their
2942 * reservations
2943 */
2944 if (sdata->reserved_ready)
2945 return 0;
2946
408b18ab 2947 return ieee80211_vif_use_reserved_context(sdata);
cd7760e6 2948 }
73da7d5b 2949
03078de4
MK		 2950 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2951 &sdata->csa_chandef))
2952 return -EINVAL;
2953
66199506
MK		 2954 sdata->vif.csa_active = false;
2955
2956 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2957 if (err)
cf8767dd 2958 return err;
faf046e7 2959
66199506 2960 ieee80211_bss_info_change_notify(sdata, changed);
59af6928 2961
a46992b4
LC		 2962 if (sdata->csa_block_tx) {
2963 ieee80211_wake_vif_queues(local, sdata,
2964 IEEE80211_QUEUE_STOP_REASON_CSA);
2965 sdata->csa_block_tx = false;
2966 }
cf8767dd 2967
f1d65583
LC		 2968 err = drv_post_channel_switch(sdata);
2969 if (err)
2970 return err;
2971
2972 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2973
cf8767dd
MK		 2974 return 0;
2975}
2976
2977static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2978{
2979 if (__ieee80211_csa_finalize(sdata)) {
2980 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2981 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2982 GFP_KERNEL);
2983 }
66e01cf9
LC		 2984}
2985
2986void ieee80211_csa_finalize_work(struct work_struct *work)
2987{
2988 struct ieee80211_sub_if_data *sdata =
2989 container_of(work, struct ieee80211_sub_if_data,
2990 csa_finalize_work);
59af6928 2991 struct ieee80211_local *local = sdata->local;
66e01cf9
LC		 2992
2993 sdata_lock(sdata);
59af6928 2994 mutex_lock(&local->mtx);
03078de4 2995 mutex_lock(&local->chanctx_mtx);
59af6928 2996
66e01cf9
LC		 2997 /* AP might have been stopped while waiting for the lock. */
2998 if (!sdata->vif.csa_active)
2999 goto unlock;
3000
3001 if (!ieee80211_sdata_running(sdata))
3002 goto unlock;
3003
3004 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 3005
3006unlock:
03078de4 3007 mutex_unlock(&local->chanctx_mtx);
59af6928 3008 mutex_unlock(&local->mtx);
e487eaeb 3009 sdata_unlock(sdata);
73da7d5b
SW		 3010}
3011
37fa2bdd
MK		 3012static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3013 struct cfg80211_csa_settings *params,
3014 u32 *changed)
73da7d5b 3015{
af296bdb 3016 struct ieee80211_csa_settings csa = {};
37fa2bdd 3017 int err;
73da7d5b 3018
73da7d5b
SW		 3019 switch (sdata->vif.type) {
3020 case NL80211_IFTYPE_AP:
cd7760e6
SW		 3021 sdata->u.ap.next_beacon =
3022 cfg80211_beacon_dup(&params->beacon_after);
3023 if (!sdata->u.ap.next_beacon)
3024 return -ENOMEM;
3025
66e01cf9
LC		 3026 /*
3027 * With a count of 0, we don't have to wait for any
3028 * TBTT before switching, so complete the CSA
3029 * immediately. In theory, with a count == 1 we
3030 * should delay the switch until just before the next
3031 * TBTT, but that would complicate things so we switch
3032 * immediately too. If we would delay the switch
3033 * until the next TBTT, we would have to set the probe
3034 * response here.
3035 *
3036 * TODO: A channel switch with count <= 1 without
3037 * sending a CSA action frame is kind of useless,
3038 * because the clients won't know we're changing
3039 * channels. The action frame must be implemented
3040 * either here or in the userspace.
3041 */
3042 if (params->count <= 1)
3043 break;
3044
0d06d9ba
AO		 3045 if ((params->n_counter_offsets_beacon >
3046 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3047 (params->n_counter_offsets_presp >
3048 IEEE80211_MAX_CSA_COUNTERS_NUM))
3049 return -EINVAL;
9a774c78 3050
af296bdb
MK		 3051 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3052 csa.counter_offsets_presp = params->counter_offsets_presp;
3053 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3054 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3055 csa.count = params->count;
9a774c78 3056
af296bdb 3057 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
cd7760e6
SW		 3058 if (err < 0) {
3059 kfree(sdata->u.ap.next_beacon);
3060 return err;
3061 }
37fa2bdd 3062 *changed |= err;
66e01cf9 3063
cd7760e6
SW		 3064 break;
3065 case NL80211_IFTYPE_ADHOC:
3066 if (!sdata->vif.bss_conf.ibss_joined)
3067 return -EINVAL;
3068
3069 if (params->chandef.width != sdata->u.ibss.chandef.width)
3070 return -EINVAL;
3071
3072 switch (params->chandef.width) {
3073 case NL80211_CHAN_WIDTH_40:
3074 if (cfg80211_get_chandef_type(&params->chandef) !=
3075 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3076 return -EINVAL;
3077 case NL80211_CHAN_WIDTH_5:
3078 case NL80211_CHAN_WIDTH_10:
3079 case NL80211_CHAN_WIDTH_20_NOHT:
3080 case NL80211_CHAN_WIDTH_20:
3081 break;
3082 default:
3083 return -EINVAL;
3084 }
3085
3086 /* changes into another band are not supported */
3087 if (sdata->u.ibss.chandef.chan->band !=
3088 params->chandef.chan->band)
3089 return -EINVAL;
3090
66e01cf9
LC		 3091 /* see comments in the NL80211_IFTYPE_AP block */
3092 if (params->count > 1) {
3093 err = ieee80211_ibss_csa_beacon(sdata, params);
3094 if (err < 0)
3095 return err;
37fa2bdd 3096 *changed |= err;
66e01cf9
LC		 3097 }
3098
3099 ieee80211_send_action_csa(sdata, params);
3100
73da7d5b 3101 break;
c6da674a 3102#ifdef CONFIG_MAC80211_MESH
37fa2bdd
MK		 3103 case NL80211_IFTYPE_MESH_POINT: {
3104 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a 3105
c6da674a
CYY		 3106 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3107 return -EINVAL;
3108
3109 /* changes into another band are not supported */
3110 if (sdata->vif.bss_conf.chandef.chan->band !=
3111 params->chandef.chan->band)
3112 return -EINVAL;
3113
c782bf8c 3114 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 3115 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 3116 if (!ifmsh->pre_value)
3117 ifmsh->pre_value = 1;
3118 else
3119 ifmsh->pre_value++;
3120 }
0cb4d4dc 3121
66e01cf9
LC		 3122 /* see comments in the NL80211_IFTYPE_AP block */
3123 if (params->count > 1) {
3124 err = ieee80211_mesh_csa_beacon(sdata, params);
3125 if (err < 0) {
3126 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3127 return err;
3128 }
37fa2bdd 3129 *changed |= err;
3f718fd8 3130 }
66e01cf9
LC		 3131
3132 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3133 ieee80211_send_action_csa(sdata, params);
3134
c6da674a 3135 break;
37fa2bdd 3136 }
c6da674a 3137#endif
73da7d5b
SW		 3138 default:
3139 return -EOPNOTSUPP;
3140 }
3141
37fa2bdd
MK		 3142 return 0;
3143}
3144
f29f58a9
LC		 3145static int
3146__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3147 struct cfg80211_csa_settings *params)
37fa2bdd
MK		 3148{
3149 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3150 struct ieee80211_local *local = sdata->local;
6d027bcc 3151 struct ieee80211_channel_switch ch_switch;
2b32713d 3152 struct ieee80211_chanctx_conf *conf;
37fa2bdd 3153 struct ieee80211_chanctx *chanctx;
b08cc24e
JB		 3154 u32 changed = 0;
3155 int err;
37fa2bdd
MK		 3156
3157 sdata_assert_lock(sdata);
59af6928 3158 lockdep_assert_held(&local->mtx);
37fa2bdd
MK		 3159
3160 if (!list_empty(&local->roc_list) || local->scanning)
3161 return -EBUSY;
3162
3163 if (sdata->wdev.cac_started)
3164 return -EBUSY;
3165
3166 if (cfg80211_chandef_identical(&params->chandef,
3167 &sdata->vif.bss_conf.chandef))
3168 return -EINVAL;
3169
03078de4
MK		 3170 /* don't allow another channel switch if one is already active. */
3171 if (sdata->vif.csa_active)
3172 return -EBUSY;
3173
2b32713d
MK		 3174 mutex_lock(&local->chanctx_mtx);
3175 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3176 lockdep_is_held(&local->chanctx_mtx));
3177 if (!conf) {
03078de4
MK		 3178 err = -EBUSY;
3179 goto out;
37fa2bdd
MK		 3180 }
3181
2b32713d 3182 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
03078de4
MK		 3183 if (!chanctx) {
3184 err = -EBUSY;
3185 goto out;
37fa2bdd 3186 }
37fa2bdd 3187
000baa5d
LC		 3188 ch_switch.timestamp = 0;
3189 ch_switch.device_timestamp = 0;
3190 ch_switch.block_tx = params->block_tx;
3191 ch_switch.chandef = params->chandef;
3192 ch_switch.count = params->count;
3193
6d027bcc
LC		 3194 err = drv_pre_channel_switch(sdata, &ch_switch);
3195 if (err)
3196 goto out;
3197
03078de4
MK		 3198 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3199 chanctx->mode,
3200 params->radar_required);
3201 if (err)
3202 goto out;
37fa2bdd 3203
03078de4
MK		 3204 /* if reservation is invalid then this will fail */
3205 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3206 if (err) {
3207 ieee80211_vif_unreserve_chanctx(sdata);
3208 goto out;
3209 }
37fa2bdd
MK		 3210
3211 err = ieee80211_set_csa_beacon(sdata, params, &changed);
03078de4
MK		 3212 if (err) {
3213 ieee80211_vif_unreserve_chanctx(sdata);
3214 goto out;
3215 }
37fa2bdd 3216
33787fc4 3217 sdata->csa_chandef = params->chandef;
59af6928 3218 sdata->csa_block_tx = params->block_tx;
73da7d5b
SW		 3219 sdata->vif.csa_active = true;
3220
59af6928 3221 if (sdata->csa_block_tx)
a46992b4
LC		 3222 ieee80211_stop_vif_queues(local, sdata,
3223 IEEE80211_QUEUE_STOP_REASON_CSA);
59af6928 3224
2f457293
LC		 3225 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3226 params->count);
3227
66e01cf9
LC		 3228 if (changed) {
3229 ieee80211_bss_info_change_notify(sdata, changed);
3230 drv_channel_switch_beacon(sdata, &params->chandef);
3231 } else {
3232 /* if the beacon didn't change, we can finalize immediately */
3233 ieee80211_csa_finalize(sdata);
3234 }
73da7d5b 3235
03078de4
MK		 3236out:
3237 mutex_unlock(&local->chanctx_mtx);
3238 return err;
73da7d5b
SW		 3239}
3240
59af6928
MK		 3241int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3242 struct cfg80211_csa_settings *params)
3243{
3244 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3245 struct ieee80211_local *local = sdata->local;
3246 int err;
3247
3248 mutex_lock(&local->mtx);
3249 err = __ieee80211_channel_switch(wiphy, dev, params);
3250 mutex_unlock(&local->mtx);
3251
3252 return err;
3253}
3254
3b79af97
JB		 3255static struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local,
3256 struct sk_buff *skb, u64 *cookie,
3257 gfp_t gfp)
3258{
3259 unsigned long spin_flags;
3260 struct sk_buff *ack_skb;
3261 int id;
3262
3263 ack_skb = skb_copy(skb, gfp);
3264 if (!ack_skb)
3265 return ERR_PTR(-ENOMEM);
3266
3267 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3268 id = idr_alloc(&local->ack_status_frames, ack_skb,
3269 1, 0x10000, GFP_ATOMIC);
3270 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3271
3272 if (id < 0) {
3273 kfree_skb(ack_skb);
3274 return ERR_PTR(-ENOMEM);
3275 }
3276
3277 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3278
3279 *cookie = ieee80211_mgmt_tx_cookie(local);
3280 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3281
3282 return ack_skb;
3283}
3284
71bbc994 3285static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3286 struct cfg80211_mgmt_tx_params *params,
3287 u64 *cookie)
026331c4 3288{
71bbc994 3289 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d 3290 struct ieee80211_local *local = sdata->local;
b2eb0ee6 3291 struct sk_buff *skb, *ack_skb;
9d38d85d 3292 struct sta_info *sta;
b176e629 3293 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3294 bool need_offchan = false;
e247bd90 3295 u32 flags;
2eb278e0 3296 int ret;
387910cc 3297 u8 *data;
f7ca38df 3298
b176e629 3299 if (params->dont_wait_for_ack)
e247bd90
JB		 3300 flags = IEEE80211_TX_CTL_NO_ACK;
3301 else
3302 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3303 IEEE80211_TX_CTL_REQ_TX_STATUS;
3304
b176e629 3305 if (params->no_cck)
aad14ceb
RM		 3306 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3307
9d38d85d
JB		 3308 switch (sdata->vif.type) {
3309 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3310 if (!sdata->vif.bss_conf.ibss_joined)
3311 need_offchan = true;
3312 /* fall through */
3313#ifdef CONFIG_MAC80211_MESH
3314 case NL80211_IFTYPE_MESH_POINT:
3315 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3316 !sdata->u.mesh.mesh_id_len)
3317 need_offchan = true;
3318 /* fall through */
3319#endif
663fcafd
JB		 3320 case NL80211_IFTYPE_AP:
3321 case NL80211_IFTYPE_AP_VLAN:
3322 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3323 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3324 !ieee80211_vif_is_mesh(&sdata->vif) &&
3325 !rcu_access_pointer(sdata->bss->beacon))
3326 need_offchan = true;
663fcafd 3327 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3328 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3329 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3330 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3331 break;
3332 rcu_read_lock();
3333 sta = sta_info_get(sdata, mgmt->da);
3334 rcu_read_unlock();
3335 if (!sta)
3336 return -ENOLINK;
3337 break;
3338 case NL80211_IFTYPE_STATION:
663fcafd 3339 case NL80211_IFTYPE_P2P_CLIENT:
b8e69d51
MG		 3340 sdata_lock(sdata);
3341 if (!sdata->u.mgd.associated ||
3342 (params->offchan && params->wait &&
3343 local->ops->remain_on_channel &&
3344 memcmp(sdata->u.mgd.associated->bssid,
3345 mgmt->bssid, ETH_ALEN)))
2eb278e0 3346 need_offchan = true;
b8e69d51 3347 sdata_unlock(sdata);
9d38d85d 3348 break;
f142c6b9
JB		 3349 case NL80211_IFTYPE_P2P_DEVICE:
3350 need_offchan = true;
3351 break;
9d38d85d
JB		 3352 default:
3353 return -EOPNOTSUPP;
3354 }
3355
f7aeb6fb
AQ		 3356 /* configurations requiring offchan cannot work if no channel has been
3357 * specified
3358 */
b176e629 3359 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3360 return -EINVAL;
3361
2eb278e0
JB		 3362 mutex_lock(&local->mtx);
3363
3364 /* Check if the operating channel is the requested channel */
3365 if (!need_offchan) {
55de908a
JB		 3366 struct ieee80211_chanctx_conf *chanctx_conf;
3367
3368 rcu_read_lock();
3369 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3370
f7aeb6fb 3371 if (chanctx_conf) {
b176e629
AO		 3372 need_offchan = params->chan &&
3373 (params->chan !=
3374 chanctx_conf->def.chan);
3375 } else if (!params->chan) {
f7aeb6fb
AQ		 3376 ret = -EINVAL;
3377 rcu_read_unlock();
3378 goto out_unlock;
3379 } else {
2eb278e0 3380 need_offchan = true;
f7aeb6fb 3381 }
55de908a 3382 rcu_read_unlock();
2eb278e0
JB		 3383 }
3384
b176e629 3385 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3386 ret = -EBUSY;
3387 goto out_unlock;
3388 }
3389
b176e629 3390 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3391 if (!skb) {
3392 ret = -ENOMEM;
3393 goto out_unlock;
3394 }
9d38d85d
JB		 3395 skb_reserve(skb, local->hw.extra_tx_headroom);
3396
387910cc
AO		 3397 data = skb_put(skb, params->len);
3398 memcpy(data, params->buf, params->len);
3399
3400 /* Update CSA counters */
3401 if (sdata->vif.csa_active &&
3402 (sdata->vif.type == NL80211_IFTYPE_AP ||
8df734e8 3403 sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
387910cc
AO		 3404 sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3405 params->n_csa_offsets) {
3406 int i;
af296bdb 3407 struct beacon_data *beacon = NULL;
387910cc 3408
af296bdb
MK		 3409 rcu_read_lock();
3410
3411 if (sdata->vif.type == NL80211_IFTYPE_AP)
3412 beacon = rcu_dereference(sdata->u.ap.beacon);
3413 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3414 beacon = rcu_dereference(sdata->u.ibss.presp);
3415 else if (ieee80211_vif_is_mesh(&sdata->vif))
3416 beacon = rcu_dereference(sdata->u.mesh.beacon);
3417
3418 if (beacon)
3419 for (i = 0; i < params->n_csa_offsets; i++)
3420 data[params->csa_offsets[i]] =
3421 beacon->csa_current_counter;
3422
3423 rcu_read_unlock();
387910cc 3424 }
9d38d85d
JB		 3425
3426 IEEE80211_SKB_CB(skb)->flags = flags;
3427
3428 skb->dev = sdata->dev;
9d38d85d 3429
b2eb0ee6 3430 if (!params->dont_wait_for_ack) {
3b79af97 3431 /* make a copy to preserve the frame contents
b2eb0ee6
JB		 3432 * in case of encryption.
3433 */
3b79af97
JB		 3434 ack_skb = ieee80211_make_ack_skb(local, skb, cookie,
3435 GFP_KERNEL);
3436 if (IS_ERR(ack_skb)) {
3437 ret = PTR_ERR(ack_skb);
b2eb0ee6
JB		 3438 kfree_skb(skb);
3439 goto out_unlock;
3440 }
b2eb0ee6
JB		 3441 } else {
3442 /* for cookie below */
3443 ack_skb = skb;
3444 }
3445
2eb278e0 3446 if (!need_offchan) {
f30221e4 3447 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3448 ret = 0;
3449 goto out_unlock;
f30221e4
JB		 3450 }
3451
6c17b77b
SF		 3452 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3453 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
30686bf7 3454 if (ieee80211_hw_check(&local->hw, QUEUE_CONTROL))
2eb278e0
JB		 3455 IEEE80211_SKB_CB(skb)->hw_queue =
3456 local->hw.offchannel_tx_hw_queue;
f30221e4 3457
2eb278e0 3458 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3459 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3460 params->wait, cookie, skb,
d339d5ca 3461 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3462 if (ret)
3463 kfree_skb(skb);
3464 out_unlock:
3465 mutex_unlock(&local->mtx);
3466 return ret;
026331c4
JM		 3467}
3468
f30221e4 3469static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3470 struct wireless_dev *wdev,
f30221e4
JB		 3471 u64 cookie)
3472{
71bbc994 3473 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3474
2eb278e0 3475 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3476}
3477
7be5086d 3478static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3479 struct wireless_dev *wdev,
7be5086d
JB		 3480 u16 frame_type, bool reg)
3481{
3482 struct ieee80211_local *local = wiphy_priv(wiphy);
3483
6abe0563 3484 switch (frame_type) {
6abe0563
WH		 3485 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3486 if (reg)
3487 local->probe_req_reg++;
3488 else
3489 local->probe_req_reg--;
7be5086d 3490
35f5149e
FF		 3491 if (!local->open_count)
3492 break;
3493
6abe0563
WH		 3494 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3495 break;
3496 default:
3497 break;
3498 }
7be5086d
JB		 3499}
3500
15d96753
BR		 3501static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3502{
3503 struct ieee80211_local *local = wiphy_priv(wiphy);
3504
3505 if (local->started)
3506 return -EOPNOTSUPP;
3507
3508 return drv_set_antenna(local, tx_ant, rx_ant);
3509}
3510
3511static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3512{
3513 struct ieee80211_local *local = wiphy_priv(wiphy);
3514
3515 return drv_get_antenna(local, tx_ant, rx_ant);
3516}
3517
c68f4b89
JB		 3518static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3519 struct net_device *dev,
3520 struct cfg80211_gtk_rekey_data *data)
3521{
3522 struct ieee80211_local *local = wiphy_priv(wiphy);
3523 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3524
3525 if (!local->ops->set_rekey_data)
3526 return -EOPNOTSUPP;
3527
3528 drv_set_rekey_data(local, sdata, data);
3529
3530 return 0;
3531}
3532
06500736
JB		 3533static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3534 const u8 *peer, u64 *cookie)
3535{
3536 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3537 struct ieee80211_local *local = sdata->local;
3538 struct ieee80211_qos_hdr *nullfunc;
3b79af97 3539 struct sk_buff *skb, *ack_skb;
06500736
JB		 3540 int size = sizeof(*nullfunc);
3541 __le16 fc;
3542 bool qos;
3543 struct ieee80211_tx_info *info;
3544 struct sta_info *sta;
55de908a
JB		 3545 struct ieee80211_chanctx_conf *chanctx_conf;
3546 enum ieee80211_band band;
3b79af97
JB		 3547 int ret;
3548
3549 /* the lock is needed to assign the cookie later */
3550 mutex_lock(&local->mtx);
06500736
JB		 3551
3552 rcu_read_lock();
55de908a
JB		 3553 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3554 if (WARN_ON(!chanctx_conf)) {
3b79af97
JB		 3555 ret = -EINVAL;
3556 goto unlock;
55de908a 3557 }
4bf88530 3558 band = chanctx_conf->def.chan->band;
03bb7f42 3559 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3560 if (sta) {
a74a8c84 3561 qos = sta->sta.wme;
b4487c2d 3562 } else {
3b79af97
JB		 3563 ret = -ENOLINK;
3564 goto unlock;
b4487c2d 3565 }
06500736
JB		 3566
3567 if (qos) {
3568 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3569 IEEE80211_STYPE_QOS_NULLFUNC |
3570 IEEE80211_FCTL_FROMDS);
3571 } else {
3572 size -= 2;
3573 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3574 IEEE80211_STYPE_NULLFUNC |
3575 IEEE80211_FCTL_FROMDS);
3576 }
3577
3578 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a 3579 if (!skb) {
3b79af97
JB		 3580 ret = -ENOMEM;
3581 goto unlock;
55de908a 3582 }
06500736
JB		 3583
3584 skb->dev = dev;
3585
3586 skb_reserve(skb, local->hw.extra_tx_headroom);
3587
3588 nullfunc = (void *) skb_put(skb, size);
3589 nullfunc->frame_control = fc;
3590 nullfunc->duration_id = 0;
3591 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3592 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3593 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3594 nullfunc->seq_ctrl = 0;
3595
3596 info = IEEE80211_SKB_CB(skb);
3597
3598 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3599 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
73c4e195 3600 info->band = band;
06500736
JB		 3601
3602 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3603 skb->priority = 7;
3604 if (qos)
3605 nullfunc->qos_ctrl = cpu_to_le16(7);
3606
3b79af97
JB		 3607 ack_skb = ieee80211_make_ack_skb(local, skb, cookie, GFP_ATOMIC);
3608 if (IS_ERR(ack_skb)) {
3609 kfree_skb(skb);
3610 ret = PTR_ERR(ack_skb);
3611 goto unlock;
3612 }
3613
06500736 3614 local_bh_disable();
7c10770f 3615 ieee80211_xmit(sdata, sta, skb);
06500736 3616 local_bh_enable();
3b79af97
JB		 3617
3618 ret = 0;
3619unlock:
55de908a 3620 rcu_read_unlock();
3b79af97 3621 mutex_unlock(&local->mtx);
06500736 3622
3b79af97 3623 return ret;
06500736
JB		 3624}
3625
683b6d3b
JB		 3626static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3627 struct wireless_dev *wdev,
3628 struct cfg80211_chan_def *chandef)
5b7ccaf3 3629{
55de908a 3630 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3631 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3632 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3633 int ret = -ENODATA;
55de908a
JB		 3634
3635 rcu_read_lock();
feda3027
JB		 3636 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3637 if (chanctx_conf) {
c12bc488 3638 *chandef = sdata->vif.bss_conf.chandef;
feda3027
JB		 3639 ret = 0;
3640 } else if (local->open_count > 0 &&
3641 local->open_count == local->monitors &&
3642 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3643 if (local->use_chanctx)
3644 *chandef = local->monitor_chandef;
3645 else
675a0b04 3646 *chandef = local->_oper_chandef;
683b6d3b 3647 ret = 0;
55de908a
JB		 3648 }
3649 rcu_read_unlock();
5b7ccaf3 3650
683b6d3b 3651 return ret;
5b7ccaf3
JB		 3652}
3653
6d52563f
JB		 3654#ifdef CONFIG_PM
3655static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3656{
3657 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3658}
3659#endif
3660
32db6b54
KP		 3661static int ieee80211_set_qos_map(struct wiphy *wiphy,
3662 struct net_device *dev,
3663 struct cfg80211_qos_map *qos_map)
3664{
3665 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3666 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3667
3668 if (qos_map) {
3669 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3670 if (!new_qos_map)
3671 return -ENOMEM;
3672 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3673 } else {
3674 /* A NULL qos_map was passed to disable QoS mapping */
3675 new_qos_map = NULL;
3676 }
3677
194ff52d 3678 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3679 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3680 if (old_qos_map)
3681 kfree_rcu(old_qos_map, rcu_head);
3682
3683 return 0;
3684}
3685
3b1700bd
JM		 3686static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3687 struct net_device *dev,
3688 struct cfg80211_chan_def *chandef)
3689{
3690 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3691 int ret;
3692 u32 changed = 0;
3693
3694 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3695 if (ret == 0)
3696 ieee80211_bss_info_change_notify(sdata, changed);
3697
3698 return ret;
3699}
3700
02219b3a
JB		 3701static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3702 u8 tsid, const u8 *peer, u8 up,
3703 u16 admitted_time)
3704{
3705 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3706 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3707 int ac = ieee802_1d_to_ac[up];
3708
3709 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3710 return -EOPNOTSUPP;
3711
3712 if (!(sdata->wmm_acm & BIT(up)))
3713 return -EINVAL;
3714
3715 if (ifmgd->tx_tspec[ac].admitted_time)
3716 return -EBUSY;
3717
3718 if (admitted_time) {
3719 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3720 ifmgd->tx_tspec[ac].tsid = tsid;
3721 ifmgd->tx_tspec[ac].up = up;
3722 }
3723
3724 return 0;
3725}
3726
3727static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3728 u8 tsid, const u8 *peer)
3729{
3730 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3731 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3732 struct ieee80211_local *local = wiphy_priv(wiphy);
3733 int ac;
3734
3735 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3736 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3737
3738 /* skip unused entries */
3739 if (!tx_tspec->admitted_time)
3740 continue;
3741
3742 if (tx_tspec->tsid != tsid)
3743 continue;
3744
3745 /* due to this new packets will be reassigned to non-ACM ACs */
3746 tx_tspec->up = -1;
3747
3748 /* Make sure that all packets have been sent to avoid to
3749 * restore the QoS params on packets that are still on the
3750 * queues.
3751 */
3752 synchronize_net();
3b24f4c6 3753 ieee80211_flush_queues(local, sdata, false);
02219b3a
JB		 3754
3755 /* restore the normal QoS parameters
3756 * (unconditionally to avoid races)
3757 */
3758 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3759 tx_tspec->downgraded = false;
3760 ieee80211_sta_handle_tspec_ac_params(sdata);
3761
3762 /* finally clear all the data */
3763 memset(tx_tspec, 0, sizeof(*tx_tspec));
3764
3765 return 0;
3766 }
3767
3768 return -ENOENT;
3769}
3770
8a47cea7 3771const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3772 .add_virtual_intf = ieee80211_add_iface,
3773 .del_virtual_intf = ieee80211_del_iface,
42613db7 3774 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3775 .start_p2p_device = ieee80211_start_p2p_device,
3776 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3777 .add_key = ieee80211_add_key,
3778 .del_key = ieee80211_del_key,
62da92fb 3779 .get_key = ieee80211_get_key,
e8cbb4cb 3780 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3781 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3782 .start_ap = ieee80211_start_ap,
3783 .change_beacon = ieee80211_change_beacon,
3784 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3785 .add_station = ieee80211_add_station,
3786 .del_station = ieee80211_del_station,
3787 .change_station = ieee80211_change_station,
7bbdd2d9 3788 .get_station = ieee80211_get_station,
c5dd9c2b 3789 .dump_station = ieee80211_dump_station,
1289723e 3790 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3791#ifdef CONFIG_MAC80211_MESH
3792 .add_mpath = ieee80211_add_mpath,
3793 .del_mpath = ieee80211_del_mpath,
3794 .change_mpath = ieee80211_change_mpath,
3795 .get_mpath = ieee80211_get_mpath,
3796 .dump_mpath = ieee80211_dump_mpath,
a2db2ed3
HR		 3797 .get_mpp = ieee80211_get_mpp,
3798 .dump_mpp = ieee80211_dump_mpp,
24bdd9f4
JC		 3799 .update_mesh_config = ieee80211_update_mesh_config,
3800 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3801 .join_mesh = ieee80211_join_mesh,
3802 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3803#endif
239281f8
RL		 3804 .join_ocb = ieee80211_join_ocb,
3805 .leave_ocb = ieee80211_leave_ocb,
9f1ba906 3806 .change_bss = ieee80211_change_bss,
31888487 3807 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3808 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3809 .suspend = ieee80211_suspend,
3810 .resume = ieee80211_resume,
2a519311 3811 .scan = ieee80211_scan,
79f460ca
LC		 3812 .sched_scan_start = ieee80211_sched_scan_start,
3813 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3814 .auth = ieee80211_auth,
3815 .assoc = ieee80211_assoc,
3816 .deauth = ieee80211_deauth,
3817 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3818 .join_ibss = ieee80211_join_ibss,
3819 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3820 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3821 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3822 .set_tx_power = ieee80211_set_tx_power,
3823 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3824 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3825 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3826 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3827 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3828 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3829 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3830 .remain_on_channel = ieee80211_remain_on_channel,
3831 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3832 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3833 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3834 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3835 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3836 .set_antenna = ieee80211_set_antenna,
3837 .get_antenna = ieee80211_get_antenna,
c68f4b89 3838 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3839 .tdls_oper = ieee80211_tdls_oper,
3840 .tdls_mgmt = ieee80211_tdls_mgmt,
a7a6bdd0
AN		 3841 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3842 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
06500736 3843 .probe_client = ieee80211_probe_client,
b53be792 3844 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3845#ifdef CONFIG_PM
3846 .set_wakeup = ieee80211_set_wakeup,
3847#endif
5b7ccaf3 3848 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3849 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3850 .channel_switch = ieee80211_channel_switch,
32db6b54 3851 .set_qos_map = ieee80211_set_qos_map,
3b1700bd 3852 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
02219b3a
JB		 3853 .add_tx_ts = ieee80211_add_tx_ts,
3854 .del_tx_ts = ieee80211_del_tx_ts,
f0706e82 3855};
Linux 6.x block layer and io_uring tree(s)