projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
nl80211: support vendor dumpit commands
[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
13657702
JB		 1022static void sta_apply_mesh_params(struct ieee80211_local *local,
1023 struct sta_info *sta,
1024 struct station_parameters *params)
1025{
1026#ifdef CONFIG_MAC80211_MESH
1027 struct ieee80211_sub_if_data *sdata = sta->sdata;
1028 u32 changed = 0;
1029
1030 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1031 switch (params->plink_state) {
1032 case NL80211_PLINK_ESTAB:
1033 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1034 changed = mesh_plink_inc_estab_count(sdata);
1035 sta->mesh->plink_state = params->plink_state;
1036
1037 ieee80211_mps_sta_status_update(sta);
1038 changed |= ieee80211_mps_set_sta_local_pm(sta,
1039 sdata->u.mesh.mshcfg.power_mode);
1040 break;
1041 case NL80211_PLINK_LISTEN:
1042 case NL80211_PLINK_BLOCKED:
1043 case NL80211_PLINK_OPN_SNT:
1044 case NL80211_PLINK_OPN_RCVD:
1045 case NL80211_PLINK_CNF_RCVD:
1046 case NL80211_PLINK_HOLDING:
1047 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1048 changed = mesh_plink_dec_estab_count(sdata);
1049 sta->mesh->plink_state = params->plink_state;
1050
1051 ieee80211_mps_sta_status_update(sta);
1052 changed |= ieee80211_mps_set_sta_local_pm(sta,
1053 NL80211_MESH_POWER_UNKNOWN);
1054 break;
1055 default:
1056 /* nothing */
1057 break;
1058 }
1059 }
1060
1061 switch (params->plink_action) {
1062 case NL80211_PLINK_ACTION_NO_ACTION:
1063 /* nothing */
1064 break;
1065 case NL80211_PLINK_ACTION_OPEN:
1066 changed |= mesh_plink_open(sta);
1067 break;
1068 case NL80211_PLINK_ACTION_BLOCK:
1069 changed |= mesh_plink_block(sta);
1070 break;
1071 }
1072
1073 if (params->local_pm)
1074 changed |= ieee80211_mps_set_sta_local_pm(sta,
1075 params->local_pm);
1076
1077 ieee80211_mbss_info_change_notify(sdata, changed);
1078#endif
1079}
1080
d9a7ddb0
JB		 1081static int sta_apply_parameters(struct ieee80211_local *local,
1082 struct sta_info *sta,
1083 struct station_parameters *params)
4fd6931e 1084{
d9a7ddb0 1085 int ret = 0;
8318d78a 1086 struct ieee80211_supported_band *sband;
d0709a65 1087 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 1088 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1089 u32 mask, set;
4fd6931e 1090
55de908a 1091 sband = local->hw.wiphy->bands[band];
ae5eb026 1092
eccb8e8f
JB		 1093 mask = params->sta_flags_mask;
1094 set = params->sta_flags_set;
73651ee6 1095
d582cffb
JB		 1096 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1097 /*
1098 * In mesh mode, ASSOCIATED isn't part of the nl80211
1099 * API but must follow AUTHENTICATED for driver state.
1100 */
1101 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1102 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1103 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1104 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1105 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1106 /*
1107 * TDLS -- everything follows authorized, but
1108 * only becoming authorized is possible, not
1109 * going back
1110 */
1111 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1112 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1113 BIT(NL80211_STA_FLAG_ASSOCIATED);
1114 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1115 BIT(NL80211_STA_FLAG_ASSOCIATED);
1116 }
eccb8e8f 1117 }
4fd6931e 1118
2c44be81
JB		 1119 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1120 local->hw.queues >= IEEE80211_NUM_ACS)
1121 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1122
68885a54
AN		 1123 /* auth flags will be set later for TDLS stations */
1124 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1125 ret = sta_apply_auth_flags(local, sta, mask, set);
1126 if (ret)
1127 return ret;
1128 }
d9a7ddb0 1129
eccb8e8f 1130 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1131 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1132 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1133 else
1134 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1135 }
4fd6931e 1136
eccb8e8f 1137 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1138 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1139 set_sta_flag(sta, WLAN_STA_MFP);
1140 else
1141 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1142 }
b39c48fa 1143
07ba55d7 1144 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1145 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1146 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1147 else
1148 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1149 }
4fd6931e 1150
9041c1fa
AN		 1151 /* mark TDLS channel switch support, if the AP allows it */
1152 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1153 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1154 params->ext_capab_len >= 4 &&
1155 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1156 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1157
b98fb44f 1158 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
82c0cc90 1159 !sdata->u.mgd.tdls_wider_bw_prohibited &&
b98fb44f
AN		 1160 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1161 params->ext_capab_len >= 8 &&
1162 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1163 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1164
3b9ce80c
JB		 1165 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1166 sta->sta.uapsd_queues = params->uapsd_queues;
1167 sta->sta.max_sp = params->max_sp;
1168 }
9533b4ac 1169
51b50fbe
JB		 1170 /*
1171 * cfg80211 validates this (1-2007) and allows setting the AID
1172 * only when creating a new station entry
1173 */
1174 if (params->aid)
1175 sta->sta.aid = params->aid;
1176
73651ee6 1177 /*
ba23d206
JB		 1178 * Some of the following updates would be racy if called on an
1179 * existing station, via ieee80211_change_station(). However,
1180 * all such changes are rejected by cfg80211 except for updates
1181 * changing the supported rates on an existing but not yet used
1182 * TDLS peer.
73651ee6
JB		 1183 */
1184
4fd6931e
JB		 1185 if (params->listen_interval >= 0)
1186 sta->listen_interval = params->listen_interval;
1187
1188 if (params->supported_rates) {
2103dec1
SW		 1189 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1190 sband, params->supported_rates,
1191 params->supported_rates_len,
1192 &sta->sta.supp_rates[band]);
4fd6931e 1193 }
c5dd9c2b 1194
d9fe60de 1195 if (params->ht_capa)
ef96a842 1196 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1197 params->ht_capa, sta);
36aedc90 1198
f461be3e
MP		 1199 if (params->vht_capa)
1200 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1201 params->vht_capa, sta);
f461be3e 1202
b1bce14a 1203 if (params->opmode_notif_used) {
b1bce14a
MK		 1204 /* returned value is only needed for rc update, but the
1205 * rc isn't initialized here yet, so ignore it
1206 */
1207 __ieee80211_vht_handle_opmode(sdata, sta,
1208 params->opmode_notif,
1209 band, false);
1210 }
1211
13657702
JB		 1212 if (ieee80211_vif_is_mesh(&sdata->vif))
1213 sta_apply_mesh_params(local, sta, params);
d9a7ddb0 1214
68885a54
AN		 1215 /* set the STA state after all sta info from usermode has been set */
1216 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1217 ret = sta_apply_auth_flags(local, sta, mask, set);
1218 if (ret)
1219 return ret;
1220 }
1221
d9a7ddb0 1222 return 0;
4fd6931e
JB		 1223}
1224
1225static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1226 const u8 *mac,
1227 struct station_parameters *params)
4fd6931e 1228{
14db74bc 1229 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1230 struct sta_info *sta;
1231 struct ieee80211_sub_if_data *sdata;
73651ee6 1232 int err;
b8d476c8 1233 int layer2_update;
4fd6931e 1234
4fd6931e
JB		 1235 if (params->vlan) {
1236 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1237
05c914fe
JB		 1238 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1239 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1240 return -EINVAL;
1241 } else
1242 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1243
b203ca39 1244 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1245 return -EINVAL;
1246
1247 if (is_multicast_ether_addr(mac))
1248 return -EINVAL;
1249
1250 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1251 if (!sta)
1252 return -ENOMEM;
4fd6931e 1253
d582cffb
JB		 1254 /*
1255 * defaults -- if userspace wants something else we'll
1256 * change it accordingly in sta_apply_parameters()
1257 */
77ee7c89
JB		 1258 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1259 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1260 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
0c4972cc
AN		 1261 } else {
1262 sta->sta.tdls = true;
77ee7c89 1263 }
4fd6931e 1264
d9a7ddb0
JB		 1265 err = sta_apply_parameters(local, sta, params);
1266 if (err) {
1267 sta_info_free(local, sta);
1268 return err;
1269 }
4fd6931e 1270
d64cf63e 1271 /*
77ee7c89
JB		 1272 * for TDLS, rate control should be initialized only when
1273 * rates are known and station is marked authorized
d64cf63e
AN		 1274 */
1275 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1276 rate_control_rate_init(sta);
4fd6931e 1277
b8d476c8
JM		 1278 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1279 sdata->vif.type == NL80211_IFTYPE_AP;
1280
34e89507 1281 err = sta_info_insert_rcu(sta);
73651ee6 1282 if (err) {
73651ee6
JB		 1283 rcu_read_unlock();
1284 return err;
1285 }
1286
b8d476c8 1287 if (layer2_update)
73651ee6
JB		 1288 ieee80211_send_layer2_update(sta);
1289
1290 rcu_read_unlock();
1291
4fd6931e
JB		 1292 return 0;
1293}
1294
1295static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
89c771e5 1296 struct station_del_parameters *params)
4fd6931e 1297{
14db74bc 1298 struct ieee80211_sub_if_data *sdata;
4fd6931e 1299
14db74bc
JB		 1300 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1301
89c771e5
JM		 1302 if (params->mac)
1303 return sta_info_destroy_addr_bss(sdata, params->mac);
4fd6931e 1304
b998e8bb 1305 sta_info_flush(sdata);
4fd6931e
JB		 1306 return 0;
1307}
1308
1309static int ieee80211_change_station(struct wiphy *wiphy,
3b3a0162 1310 struct net_device *dev, const u8 *mac,
4fd6931e
JB		 1311 struct station_parameters *params)
1312{
abe60632 1313 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1314 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1315 struct sta_info *sta;
1316 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1317 enum cfg80211_station_type statype;
35b88623 1318 int err;
4fd6931e 1319
87be1e1e 1320 mutex_lock(&local->sta_mtx);
98dd6a57 1321
0e5ded5a 1322 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1323 if (!sta) {
77ee7c89
JB		 1324 err = -ENOENT;
1325 goto out_err;
98dd6a57 1326 }
4fd6931e 1327
77ee7c89
JB		 1328 switch (sdata->vif.type) {
1329 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1330 if (sdata->u.mesh.user_mpm)
eef941e6 1331 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1332 else
eef941e6 1333 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1334 break;
1335 case NL80211_IFTYPE_ADHOC:
1336 statype = CFG80211_STA_IBSS;
1337 break;
1338 case NL80211_IFTYPE_STATION:
1339 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1340 statype = CFG80211_STA_AP_STA;
1341 break;
1342 }
1343 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1344 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1345 else
1346 statype = CFG80211_STA_TDLS_PEER_SETUP;
1347 break;
1348 case NL80211_IFTYPE_AP:
1349 case NL80211_IFTYPE_AP_VLAN:
1350 statype = CFG80211_STA_AP_CLIENT;
1351 break;
1352 default:
1353 err = -EOPNOTSUPP;
1354 goto out_err;
bdd90d5e
JB		 1355 }
1356
77ee7c89
JB		 1357 err = cfg80211_check_station_change(wiphy, params, statype);
1358 if (err)
1359 goto out_err;
1360
d0709a65 1361 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1362 bool prev_4addr = false;
1363 bool new_4addr = false;
1364
4fd6931e
JB		 1365 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1366
9bc383de 1367 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1368 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1369 err = -EBUSY;
1370 goto out_err;
3305443c 1371 }
f14543ee 1372
cf778b00 1373 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1374 new_4addr = true;
1375 }
1376
1377 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1378 sta->sdata->u.vlan.sta) {
0c2bef46 1379 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
7e3ed02c 1380 prev_4addr = true;
f14543ee
FF		 1381 }
1382
14db74bc 1383 sta->sdata = vlansdata;
464daaf0 1384 ieee80211_check_fast_xmit(sta);
7e3ed02c
FF		 1385
1386 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1387 prev_4addr != new_4addr) {
1388 if (new_4addr)
1389 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1390 else
1391 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1392 }
1393
4fd6931e
JB		 1394 ieee80211_send_layer2_update(sta);
1395 }
1396
35b88623 1397 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1398 if (err)
1399 goto out_err;
4fd6931e 1400
87be1e1e 1401 mutex_unlock(&local->sta_mtx);
98dd6a57 1402
687da132
EG		 1403 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1404 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1405 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1406 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1407 sta_info_tx_streams(sta) != 1) {
1408 ht_dbg(sta->sdata,
1409 "%pM just authorized and MIMO capable - update SMPS\n",
1410 sta->sta.addr);
1411 ieee80211_send_smps_action(sta->sdata,
1412 sta->sdata->bss->req_smps,
1413 sta->sta.addr,
1414 sta->sdata->vif.bss_conf.bssid);
1415 }
1416
808118cb 1417 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1418 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1419 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1420 ieee80211_recalc_ps_vif(sdata);
1421 }
77ee7c89 1422
4fd6931e 1423 return 0;
77ee7c89
JB		 1424out_err:
1425 mutex_unlock(&local->sta_mtx);
1426 return err;
4fd6931e
JB		 1427}
1428
c5dd9c2b
LCC		 1429#ifdef CONFIG_MAC80211_MESH
1430static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1431 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1432{
14db74bc 1433 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1434 struct mesh_path *mpath;
1435 struct sta_info *sta;
c5dd9c2b 1436
14db74bc
JB		 1437 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1438
d0709a65 1439 rcu_read_lock();
abe60632 1440 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1441 if (!sta) {
1442 rcu_read_unlock();
c5dd9c2b 1443 return -ENOENT;
d0709a65 1444 }
c5dd9c2b 1445
ae76eef0
BC		 1446 mpath = mesh_path_add(sdata, dst);
1447 if (IS_ERR(mpath)) {
d0709a65 1448 rcu_read_unlock();
ae76eef0 1449 return PTR_ERR(mpath);
d0709a65 1450 }
c5dd9c2b 1451
c5dd9c2b 1452 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1453
c5dd9c2b
LCC		 1454 rcu_read_unlock();
1455 return 0;
1456}
1457
1458static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1459 const u8 *dst)
c5dd9c2b 1460{
f698d856
JBG		 1461 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1462
c5dd9c2b 1463 if (dst)
bf7cd94d 1464 return mesh_path_del(sdata, dst);
c5dd9c2b 1465
ece1a2e7 1466 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1467 return 0;
1468}
1469
3b3a0162
JB		 1470static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1471 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1472{
14db74bc 1473 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1474 struct mesh_path *mpath;
1475 struct sta_info *sta;
1476
14db74bc
JB		 1477 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1478
d0709a65
JB		 1479 rcu_read_lock();
1480
abe60632 1481 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1482 if (!sta) {
1483 rcu_read_unlock();
c5dd9c2b 1484 return -ENOENT;
d0709a65 1485 }
c5dd9c2b 1486
bf7cd94d 1487 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1488 if (!mpath) {
1489 rcu_read_unlock();
c5dd9c2b
LCC		 1490 return -ENOENT;
1491 }
1492
1493 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1494
c5dd9c2b
LCC		 1495 rcu_read_unlock();
1496 return 0;
1497}
1498
1499static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1500 struct mpath_info *pinfo)
1501{
a3836e02
JB		 1502 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1503
1504 if (next_hop_sta)
1505 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b 1506 else
c84a67a2 1507 eth_zero_addr(next_hop);
c5dd9c2b 1508
7ce8c7a3
LAYS		 1509 memset(pinfo, 0, sizeof(*pinfo));
1510
f5ea9120
JB		 1511 pinfo->generation = mesh_paths_generation;
1512
c5dd9c2b 1513 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1514 MPATH_INFO_SN |
c5dd9c2b
LCC		 1515 MPATH_INFO_METRIC |
1516 MPATH_INFO_EXPTIME |
1517 MPATH_INFO_DISCOVERY_TIMEOUT |
1518 MPATH_INFO_DISCOVERY_RETRIES |
1519 MPATH_INFO_FLAGS;
1520
1521 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1522 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1523 pinfo->metric = mpath->metric;
1524 if (time_before(jiffies, mpath->exp_time))
1525 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1526 pinfo->discovery_timeout =
1527 jiffies_to_msecs(mpath->discovery_timeout);
1528 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1529 if (mpath->flags & MESH_PATH_ACTIVE)
1530 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1531 if (mpath->flags & MESH_PATH_RESOLVING)
1532 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1533 if (mpath->flags & MESH_PATH_SN_VALID)
1534 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1535 if (mpath->flags & MESH_PATH_FIXED)
1536 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1537 if (mpath->flags & MESH_PATH_RESOLVED)
1538 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1539}
1540
1541static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1542 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1543
1544{
14db74bc 1545 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1546 struct mesh_path *mpath;
1547
14db74bc
JB		 1548 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1549
c5dd9c2b 1550 rcu_read_lock();
bf7cd94d 1551 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1552 if (!mpath) {
1553 rcu_read_unlock();
1554 return -ENOENT;
1555 }
1556 memcpy(dst, mpath->dst, ETH_ALEN);
1557 mpath_set_pinfo(mpath, next_hop, pinfo);
1558 rcu_read_unlock();
1559 return 0;
1560}
1561
1562static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1563 int idx, u8 *dst, u8 *next_hop,
1564 struct mpath_info *pinfo)
c5dd9c2b 1565{
14db74bc 1566 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1567 struct mesh_path *mpath;
1568
14db74bc
JB		 1569 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1570
c5dd9c2b 1571 rcu_read_lock();
bf7cd94d 1572 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1573 if (!mpath) {
1574 rcu_read_unlock();
1575 return -ENOENT;
1576 }
1577 memcpy(dst, mpath->dst, ETH_ALEN);
1578 mpath_set_pinfo(mpath, next_hop, pinfo);
1579 rcu_read_unlock();
1580 return 0;
1581}
93da9cc1 1582
a2db2ed3
HR		 1583static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1584 struct mpath_info *pinfo)
1585{
1586 memset(pinfo, 0, sizeof(*pinfo));
1587 memcpy(mpp, mpath->mpp, ETH_ALEN);
1588
1589 pinfo->generation = mpp_paths_generation;
1590}
1591
1592static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1593 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1594
1595{
1596 struct ieee80211_sub_if_data *sdata;
1597 struct mesh_path *mpath;
1598
1599 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1600
1601 rcu_read_lock();
1602 mpath = mpp_path_lookup(sdata, dst);
1603 if (!mpath) {
1604 rcu_read_unlock();
1605 return -ENOENT;
1606 }
1607 memcpy(dst, mpath->dst, ETH_ALEN);
1608 mpp_set_pinfo(mpath, mpp, pinfo);
1609 rcu_read_unlock();
1610 return 0;
1611}
1612
1613static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1614 int idx, u8 *dst, u8 *mpp,
1615 struct mpath_info *pinfo)
1616{
1617 struct ieee80211_sub_if_data *sdata;
1618 struct mesh_path *mpath;
1619
1620 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1621
1622 rcu_read_lock();
1623 mpath = mpp_path_lookup_by_idx(sdata, idx);
1624 if (!mpath) {
1625 rcu_read_unlock();
1626 return -ENOENT;
1627 }
1628 memcpy(dst, mpath->dst, ETH_ALEN);
1629 mpp_set_pinfo(mpath, mpp, pinfo);
1630 rcu_read_unlock();
1631 return 0;
1632}
1633
24bdd9f4 1634static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1635 struct net_device *dev,
1636 struct mesh_config *conf)
1637{
1638 struct ieee80211_sub_if_data *sdata;
1639 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1640
93da9cc1 1641 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1642 return 0;
1643}
1644
1645static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1646{
1647 return (mask >> (parm-1)) & 0x1;
1648}
1649
c80d545d
JC		 1650static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1651 const struct mesh_setup *setup)
1652{
1653 u8 *new_ie;
1654 const u8 *old_ie;
4bb62344
CYY		 1655 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1656 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1657
581a8b0f 1658 /* allocate information elements */
c80d545d 1659 new_ie = NULL;
581a8b0f 1660 old_ie = ifmsh->ie;
c80d545d 1661
581a8b0f
JC		 1662 if (setup->ie_len) {
1663 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1664 GFP_KERNEL);
1665 if (!new_ie)
1666 return -ENOMEM;
1667 }
581a8b0f
JC		 1668 ifmsh->ie_len = setup->ie_len;
1669 ifmsh->ie = new_ie;
1670 kfree(old_ie);
c80d545d
JC		 1671
1672 /* now copy the rest of the setup parameters */
1673 ifmsh->mesh_id_len = setup->mesh_id_len;
1674 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1675 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1676 ifmsh->mesh_pp_id = setup->path_sel_proto;
1677 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1678 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1679 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1680 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1681 if (setup->is_authenticated)
1682 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1683 if (setup->is_secure)
1684 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1685
4bb62344
CYY		 1686 /* mcast rate setting in Mesh Node */
1687 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1688 sizeof(setup->mcast_rate));
ffb3cf30 1689 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1690
9bdbf04d
MP		 1691 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1692 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1693
c80d545d
JC		 1694 return 0;
1695}
1696
24bdd9f4 1697static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1698 struct net_device *dev, u32 mask,
1699 const struct mesh_config *nconf)
93da9cc1 1700{
1701 struct mesh_config *conf;
1702 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1703 struct ieee80211_if_mesh *ifmsh;
1704
93da9cc1 1705 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1706 ifmsh = &sdata->u.mesh;
93da9cc1 1707
93da9cc1 1708 /* Set the config options which we are interested in setting */
1709 conf = &(sdata->u.mesh.mshcfg);
1710 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1711 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1712 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1713 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1714 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1715 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1716 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1717 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1718 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1719 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1720 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1721 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1722 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1723 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1724 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1725 if (ifmsh->user_mpm)
1726 return -EBUSY;
93da9cc1 1727 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1728 }
d299a1f2
JC		 1729 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1730 conf->dot11MeshNbrOffsetMaxNeighbor =
1731 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1732 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1733 conf->dot11MeshHWMPmaxPREQretries =
1734 nconf->dot11MeshHWMPmaxPREQretries;
1735 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1736 conf->path_refresh_time = nconf->path_refresh_time;
1737 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1738 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1739 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1740 conf->dot11MeshHWMPactivePathTimeout =
1741 nconf->dot11MeshHWMPactivePathTimeout;
1742 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1743 conf->dot11MeshHWMPpreqMinInterval =
1744 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1745 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1746 conf->dot11MeshHWMPperrMinInterval =
1747 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1748 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1749 mask))
1750 conf->dot11MeshHWMPnetDiameterTraversalTime =
1751 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1752 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1753 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1754 ieee80211_mesh_root_setup(ifmsh);
1755 }
16dd7267 1756 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1757 /* our current gate announcement implementation rides on root
1758 * announcements, so require this ifmsh to also be a root node
1759 * */
1760 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1761 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1762 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1763 ieee80211_mesh_root_setup(ifmsh);
1764 }
16dd7267
JC		 1765 conf->dot11MeshGateAnnouncementProtocol =
1766 nconf->dot11MeshGateAnnouncementProtocol;
1767 }
a4f606ea 1768 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1769 conf->dot11MeshHWMPRannInterval =
1770 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1771 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1772 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1773 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1774 /* our RSSI threshold implementation is supported only for
1775 * devices that report signal in dBm.
1776 */
30686bf7 1777 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
55335137
AN		 1778 return -ENOTSUPP;
1779 conf->rssi_threshold = nconf->rssi_threshold;
1780 }
70c33eaa
AN		 1781 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1782 conf->ht_opmode = nconf->ht_opmode;
1783 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1784 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1785 }
ac1073a6
CYY		 1786 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1787 conf->dot11MeshHWMPactivePathToRootTimeout =
1788 nconf->dot11MeshHWMPactivePathToRootTimeout;
1789 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1790 conf->dot11MeshHWMProotInterval =
1791 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1792 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1793 conf->dot11MeshHWMPconfirmationInterval =
1794 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1795 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1796 conf->power_mode = nconf->power_mode;
1797 ieee80211_mps_local_status_update(sdata);
1798 }
2b5e1967 1799 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1800 conf->dot11MeshAwakeWindowDuration =
1801 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1802 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1803 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1804 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1805 return 0;
1806}
1807
29cbe68c
JB		 1808static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1809 const struct mesh_config *conf,
1810 const struct mesh_setup *setup)
1811{
1812 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1813 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1814 int err;
29cbe68c 1815
c80d545d
JC		 1816 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1817 err = copy_mesh_setup(ifmsh, setup);
1818 if (err)
1819 return err;
cc1d2806 1820
04ecd257
JB		 1821 /* can mesh use other SMPS modes? */
1822 sdata->smps_mode = IEEE80211_SMPS_OFF;
1823 sdata->needed_rx_chains = sdata->local->rx_chains;
1824
34a3740d 1825 mutex_lock(&sdata->local->mtx);
4bf88530 1826 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1827 IEEE80211_CHANCTX_SHARED);
34a3740d 1828 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1829 if (err)
1830 return err;
1831
2b5e1967 1832 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1833}
1834
1835static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1836{
1837 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1838
1839 ieee80211_stop_mesh(sdata);
34a3740d 1840 mutex_lock(&sdata->local->mtx);
55de908a 1841 ieee80211_vif_release_channel(sdata);
34a3740d 1842 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1843
1844 return 0;
1845}
c5dd9c2b
LCC		 1846#endif
1847
9f1ba906
JM		 1848static int ieee80211_change_bss(struct wiphy *wiphy,
1849 struct net_device *dev,
1850 struct bss_parameters *params)
1851{
55de908a
JB		 1852 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1853 enum ieee80211_band band;
9f1ba906
JM		 1854 u32 changed = 0;
1855
7ca133bc 1856 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1857 return -ENOENT;
1858
1859 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1860
9f1ba906 1861 if (params->use_cts_prot >= 0) {
bda3933a 1862 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1863 changed |= BSS_CHANGED_ERP_CTS_PROT;
1864 }
1865 if (params->use_short_preamble >= 0) {
bda3933a 1866 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1867 params->use_short_preamble;
1868 changed |= BSS_CHANGED_ERP_PREAMBLE;
1869 }
43d35343
FF		 1870
1871 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1872 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1873 sdata->vif.bss_conf.use_short_slot = true;
1874 changed |= BSS_CHANGED_ERP_SLOT;
1875 }
1876
9f1ba906 1877 if (params->use_short_slot_time >= 0) {
bda3933a 1878 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1879 params->use_short_slot_time;
1880 changed |= BSS_CHANGED_ERP_SLOT;
1881 }
1882
90c97a04 1883 if (params->basic_rates) {
2103dec1
SW		 1884 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1885 wiphy->bands[band],
1886 params->basic_rates,
1887 params->basic_rates_len,
1888 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 1889 changed |= BSS_CHANGED_BASIC_RATES;
1890 }
1891
7b7b5e56
FF		 1892 if (params->ap_isolate >= 0) {
1893 if (params->ap_isolate)
1894 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1895 else
1896 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1897 }
1898
80d7e403
HS		 1899 if (params->ht_opmode >= 0) {
1900 sdata->vif.bss_conf.ht_operation_mode =
1901 (u16) params->ht_opmode;
1902 changed |= BSS_CHANGED_HT;
1903 }
1904
339afbf4 1905 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1906 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1907 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1908 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1909 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1910 changed |= BSS_CHANGED_P2P_PS;
1911 }
1912
67baf663
JD		 1913 if (params->p2p_opp_ps > 0) {
1914 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1915 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1916 changed |= BSS_CHANGED_P2P_PS;
1917 } else if (params->p2p_opp_ps == 0) {
1918 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1919 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1920 changed |= BSS_CHANGED_P2P_PS;
1921 }
1922
9f1ba906
JM		 1923 ieee80211_bss_info_change_notify(sdata, changed);
1924
1925 return 0;
1926}
1927
31888487 1928static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1929 struct net_device *dev,
31888487
JM		 1930 struct ieee80211_txq_params *params)
1931{
1932 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1933 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1934 struct ieee80211_tx_queue_params p;
1935
1936 if (!local->ops->conf_tx)
1937 return -EOPNOTSUPP;
1938
54bcbc69
JB		 1939 if (local->hw.queues < IEEE80211_NUM_ACS)
1940 return -EOPNOTSUPP;
1941
31888487
JM		 1942 memset(&p, 0, sizeof(p));
1943 p.aifs = params->aifs;
1944 p.cw_max = params->cwmax;
1945 p.cw_min = params->cwmin;
1946 p.txop = params->txop;
ab13315a
KV		 1947
1948 /*
1949 * Setting tx queue params disables u-apsd because it's only
1950 * called in master mode.
1951 */
1952 p.uapsd = false;
1953
a3304b0a
JB		 1954 sdata->tx_conf[params->ac] = p;
1955 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 1956 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 1957 "failed to set TX queue parameters for AC %d\n",
1958 params->ac);
31888487
JM		 1959 return -EINVAL;
1960 }
1961
7d25745d
JB		 1962 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1963
31888487
JM		 1964 return 0;
1965}
1966
665af4fc 1967#ifdef CONFIG_PM
ff1b6e69
JB		 1968static int ieee80211_suspend(struct wiphy *wiphy,
1969 struct cfg80211_wowlan *wowlan)
665af4fc 1970{
eecc4800 1971 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1972}
1973
1974static int ieee80211_resume(struct wiphy *wiphy)
1975{
1976 return __ieee80211_resume(wiphy_priv(wiphy));
1977}
1978#else
1979#define ieee80211_suspend NULL
1980#define ieee80211_resume NULL
1981#endif
1982
2a519311 1983static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 1984 struct cfg80211_scan_request *req)
1985{
fd014284
JB		 1986 struct ieee80211_sub_if_data *sdata;
1987
1988 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 1989
2ca27bcf
JB		 1990 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1991 case NL80211_IFTYPE_STATION:
1992 case NL80211_IFTYPE_ADHOC:
1993 case NL80211_IFTYPE_MESH_POINT:
1994 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 1995 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 1996 break;
1997 case NL80211_IFTYPE_P2P_GO:
1998 if (sdata->local->ops->hw_scan)
1999 break;
e9d7732e
JB		 2000 /*
2001 * FIXME: implement NoA while scanning in software,
2002 * for now fall through to allow scanning only when
2003 * beaconing hasn't been configured yet
2004 */
2ca27bcf 2005 case NL80211_IFTYPE_AP:
5c95b940
AQ		 2006 /*
2007 * If the scan has been forced (and the driver supports
2008 * forcing), don't care about being beaconing already.
2009 * This will create problems to the attached stations (e.g. all
2010 * the frames sent while scanning on other channel will be
2011 * lost)
2012 */
2013 if (sdata->u.ap.beacon &&
2014 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2015 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2016 return -EOPNOTSUPP;
2017 break;
2018 default:
2019 return -EOPNOTSUPP;
2020 }
2a519311
JB		 2021
2022 return ieee80211_request_scan(sdata, req);
2023}
2024
79f460ca
LC		 2025static int
2026ieee80211_sched_scan_start(struct wiphy *wiphy,
2027 struct net_device *dev,
2028 struct cfg80211_sched_scan_request *req)
2029{
2030 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2031
2032 if (!sdata->local->ops->sched_scan_start)
2033 return -EOPNOTSUPP;
2034
2035 return ieee80211_request_sched_scan_start(sdata, req);
2036}
2037
2038static int
85a9994a 2039ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 2040{
2041 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2042
2043 if (!sdata->local->ops->sched_scan_stop)
2044 return -EOPNOTSUPP;
2045
85a9994a 2046 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 2047}
2048
636a5d36
JM		 2049static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2050 struct cfg80211_auth_request *req)
2051{
77fdaa12 2052 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2053}
2054
2055static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2056 struct cfg80211_assoc_request *req)
2057{
77fdaa12 2058 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2059}
2060
2061static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2062 struct cfg80211_deauth_request *req)
636a5d36 2063{
63c9c5e7 2064 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2065}
2066
2067static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2068 struct cfg80211_disassoc_request *req)
636a5d36 2069{
63c9c5e7 2070 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2071}
2072
af8cdcd8
JB		 2073static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2074 struct cfg80211_ibss_params *params)
2075{
55de908a 2076 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2077}
2078
2079static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2080{
55de908a 2081 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2082}
2083
239281f8
RL		 2084static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2085 struct ocb_setup *setup)
2086{
2087 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2088}
2089
2090static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2091{
2092 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2093}
2094
391e53e3
AQ		 2095static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
2096 int rate[IEEE80211_NUM_BANDS])
2097{
2098 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2099
9887dbf5
CD		 2100 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
2101 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 2102
2103 return 0;
2104}
2105
b9a5f8ca
JM		 2106static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2107{
2108 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2109 int err;
b9a5f8ca 2110
f23a4780 2111 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
17c18bf8
JB		 2112 ieee80211_check_fast_xmit_all(local);
2113
f23a4780
AN		 2114 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2115
17c18bf8
JB		 2116 if (err) {
2117 ieee80211_check_fast_xmit_all(local);
f23a4780 2118 return err;
17c18bf8 2119 }
f23a4780
AN		 2120 }
2121
a4bcaf55
LB		 2122 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2123 (changed & WIPHY_PARAM_DYN_ACK)) {
2124 s16 coverage_class;
2125
2126 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2127 wiphy->coverage_class : -1;
2128 err = drv_set_coverage_class(local, coverage_class);
310bc676
LT		 2129
2130 if (err)
2131 return err;
2132 }
2133
b9a5f8ca 2134 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2135 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2136
24487981
JB		 2137 if (err)
2138 return err;
b9a5f8ca
JM		 2139 }
2140
8bc83c24
JB		 2141 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2142 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2143 return -EINVAL;
b9a5f8ca 2144 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2145 }
2146 if (changed & WIPHY_PARAM_RETRY_LONG) {
2147 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2148 return -EINVAL;
b9a5f8ca 2149 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2150 }
b9a5f8ca
JM		 2151 if (changed &
2152 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2153 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2154
2155 return 0;
2156}
2157
7643a2c3 2158static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2159 struct wireless_dev *wdev,
fa61cf70 2160 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2161{
2162 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2163 struct ieee80211_sub_if_data *sdata;
db82d8a9
LB		 2164 enum nl80211_tx_power_setting txp_type = type;
2165 bool update_txp_type = false;
7643a2c3 2166
1ea6f9c0
JB		 2167 if (wdev) {
2168 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2169
2170 switch (type) {
2171 case NL80211_TX_POWER_AUTOMATIC:
2172 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2173 txp_type = NL80211_TX_POWER_LIMITED;
1ea6f9c0
JB		 2174 break;
2175 case NL80211_TX_POWER_LIMITED:
2176 case NL80211_TX_POWER_FIXED:
2177 if (mbm < 0 || (mbm % 100))
2178 return -EOPNOTSUPP;
2179 sdata->user_power_level = MBM_TO_DBM(mbm);
2180 break;
2181 }
2182
db82d8a9
LB		 2183 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2184 update_txp_type = true;
2185 sdata->vif.bss_conf.txpower_type = txp_type;
2186 }
2187
2188 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0
JB		 2189
2190 return 0;
2191 }
55de908a 2192
7643a2c3 2193 switch (type) {
fa61cf70 2194 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2195 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2196 txp_type = NL80211_TX_POWER_LIMITED;
7643a2c3 2197 break;
fa61cf70 2198 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2199 case NL80211_TX_POWER_FIXED:
2200 if (mbm < 0 || (mbm % 100))
2201 return -EOPNOTSUPP;
fa61cf70 2202 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2203 break;
7643a2c3
JB		 2204 }
2205
1ea6f9c0 2206 mutex_lock(&local->iflist_mtx);
db82d8a9 2207 list_for_each_entry(sdata, &local->interfaces, list) {
1ea6f9c0 2208 sdata->user_power_level = local->user_power_level;
db82d8a9
LB		 2209 if (txp_type != sdata->vif.bss_conf.txpower_type)
2210 update_txp_type = true;
2211 sdata->vif.bss_conf.txpower_type = txp_type;
2212 }
1ea6f9c0 2213 list_for_each_entry(sdata, &local->interfaces, list)
db82d8a9 2214 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0 2215 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2216
2217 return 0;
2218}
2219
c8442118
JB		 2220static int ieee80211_get_tx_power(struct wiphy *wiphy,
2221 struct wireless_dev *wdev,
2222 int *dbm)
7643a2c3
JB		 2223{
2224 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2225 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2226
5b3dc42b
FF		 2227 if (local->ops->get_txpower)
2228 return drv_get_txpower(local, sdata, dbm);
2229
1ea6f9c0
JB		 2230 if (!local->use_chanctx)
2231 *dbm = local->hw.conf.power_level;
2232 else
2233 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2234
7643a2c3
JB		 2235 return 0;
2236}
2237
ab737a4f 2238static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2239 const u8 *addr)
ab737a4f
JB		 2240{
2241 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2242
2243 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2244
2245 return 0;
2246}
2247
1f87f7d3
JB		 2248static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2249{
2250 struct ieee80211_local *local = wiphy_priv(wiphy);
2251
2252 drv_rfkill_poll(local);
2253}
2254
aff89a9b 2255#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2256static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2257 struct wireless_dev *wdev,
2258 void *data, int len)
aff89a9b
JB		 2259{
2260 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2261 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2262
2263 if (!local->ops->testmode_cmd)
2264 return -EOPNOTSUPP;
2265
52981cd7
DS		 2266 if (wdev) {
2267 struct ieee80211_sub_if_data *sdata;
2268
2269 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2270 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2271 vif = &sdata->vif;
2272 }
2273
2274 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2275}
71063f0e
WYG		 2276
2277static int ieee80211_testmode_dump(struct wiphy *wiphy,
2278 struct sk_buff *skb,
2279 struct netlink_callback *cb,
2280 void *data, int len)
2281{
2282 struct ieee80211_local *local = wiphy_priv(wiphy);
2283
2284 if (!local->ops->testmode_dump)
2285 return -EOPNOTSUPP;
2286
2287 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2288}
aff89a9b
JB		 2289#endif
2290
687da132
EG		 2291int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2292 enum ieee80211_smps_mode smps_mode)
2293{
2294 struct sta_info *sta;
2295 enum ieee80211_smps_mode old_req;
687da132
EG		 2296
2297 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2298 return -EINVAL;
2299
2300 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2301 return 0;
2302
2303 old_req = sdata->u.ap.req_smps;
2304 sdata->u.ap.req_smps = smps_mode;
2305
2306 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2307 if (old_req == smps_mode ||
2308 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2309 return 0;
2310
2311 /* If no associated stations, there's no need to do anything */
2312 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2313 sdata->smps_mode = smps_mode;
2314 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2315 return 0;
2316 }
2317
2318 ht_dbg(sdata,
6a8b4adb 2319 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
687da132
EG		 2320 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2321
2322 mutex_lock(&sdata->local->sta_mtx);
7d9bb2f0
JB		 2323 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2324 /*
2325 * Only stations associated to our AP and
2326 * associated VLANs
2327 */
2328 if (sta->sdata->bss != &sdata->u.ap)
2329 continue;
687da132 2330
7d9bb2f0
JB		 2331 /* This station doesn't support MIMO - skip it */
2332 if (sta_info_tx_streams(sta) == 1)
2333 continue;
687da132 2334
7d9bb2f0
JB		 2335 /*
2336 * Don't wake up a STA just to send the action frame
2337 * unless we are getting more restrictive.
2338 */
2339 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2340 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2341 smps_mode)) {
2342 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2343 sta->sta.addr);
2344 continue;
2345 }
687da132 2346
7d9bb2f0
JB		 2347 /*
2348 * If the STA is not authorized, wait until it gets
2349 * authorized and the action frame will be sent then.
2350 */
2351 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2352 continue;
687da132 2353
7d9bb2f0
JB		 2354 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2355 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2356 sdata->vif.bss_conf.bssid);
687da132
EG		 2357 }
2358 mutex_unlock(&sdata->local->sta_mtx);
2359
2360 sdata->smps_mode = smps_mode;
2361 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2362
2363 return 0;
2364}
2365
2366int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2367 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2368{
2369 const u8 *ap;
2370 enum ieee80211_smps_mode old_req;
2371 int err;
d51c2ea3
AN		 2372 struct sta_info *sta;
2373 bool tdls_peer_found = false;
0f78231b 2374
8d61ffa5 2375 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2376
687da132
EG		 2377 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2378 return -EINVAL;
2379
0f78231b
JB		 2380 old_req = sdata->u.mgd.req_smps;
2381 sdata->u.mgd.req_smps = smps_mode;
2382
2383 if (old_req == smps_mode &&
2384 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2385 return 0;
2386
2387 /*
2388 * If not associated, or current association is not an HT
04ecd257
JB		 2389 * association, there's no need to do anything, just store
2390 * the new value until we associate.
0f78231b
JB		 2391 */
2392 if (!sdata->u.mgd.associated ||
4bf88530 2393 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2394 return 0;
0f78231b 2395
0c1ad2ca 2396 ap = sdata->u.mgd.associated->bssid;
0f78231b 2397
d51c2ea3
AN		 2398 rcu_read_lock();
2399 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2400 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2401 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2402 continue;
2403
2404 tdls_peer_found = true;
2405 break;
2406 }
2407 rcu_read_unlock();
2408
0f78231b 2409 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
d51c2ea3 2410 if (tdls_peer_found || !sdata->u.mgd.powersave)
0f78231b 2411 smps_mode = IEEE80211_SMPS_OFF;
d51c2ea3
AN		 2412 else
2413 smps_mode = IEEE80211_SMPS_DYNAMIC;
0f78231b
JB		 2414 }
2415
2416 /* send SM PS frame to AP */
2417 err = ieee80211_send_smps_action(sdata, smps_mode,
2418 ap, ap);
2419 if (err)
2420 sdata->u.mgd.req_smps = old_req;
d51c2ea3
AN		 2421 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2422 ieee80211_teardown_tdls_peers(sdata);
0f78231b
JB		 2423
2424 return err;
2425}
2426
bc92afd9
JB		 2427static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2428 bool enabled, int timeout)
2429{
2430 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2431 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2432
2d3db210 2433 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2434 return -EOPNOTSUPP;
2435
30686bf7 2436 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
bc92afd9
JB		 2437 return -EOPNOTSUPP;
2438
2439 if (enabled == sdata->u.mgd.powersave &&
ff616381 2440 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2441 return 0;
2442
2443 sdata->u.mgd.powersave = enabled;
ff616381 2444 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2445
0f78231b 2446 /* no change, but if automatic follow powersave */
ed405be5 2447 sdata_lock(sdata);
687da132 2448 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2449 sdata_unlock(sdata);
0f78231b 2450
30686bf7 2451 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
bc92afd9
JB		 2452 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2453
2454 ieee80211_recalc_ps(local, -1);
ab095877 2455 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2456
2457 return 0;
2458}
2459
a97c13c3
JO		 2460static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2461 struct net_device *dev,
2462 s32 rssi_thold, u32 rssi_hyst)
2463{
2464 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2465 struct ieee80211_vif *vif = &sdata->vif;
2466 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2467
a97c13c3
JO		 2468 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2469 rssi_hyst == bss_conf->cqm_rssi_hyst)
2470 return 0;
2471
2472 bss_conf->cqm_rssi_thold = rssi_thold;
2473 bss_conf->cqm_rssi_hyst = rssi_hyst;
2474
2475 /* tell the driver upon association, unless already associated */
ea086359
JB		 2476 if (sdata->u.mgd.associated &&
2477 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2478 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2479
2480 return 0;
2481}
2482
9930380f
JB		 2483static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2484 struct net_device *dev,
2485 const u8 *addr,
2486 const struct cfg80211_bitrate_mask *mask)
2487{
2488 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2489 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2490 int i, ret;
2c7e6bc9 2491
554a43d5
EP		 2492 if (!ieee80211_sdata_running(sdata))
2493 return -ENETDOWN;
2494
30686bf7 2495 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
bdbfd6b5
SM		 2496 ret = drv_set_bitrate_mask(local, sdata, mask);
2497 if (ret)
2498 return ret;
2499 }
9930380f 2500
19468413 2501 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2502 struct ieee80211_supported_band *sband = wiphy->bands[i];
2503 int j;
2504
37eb0b16 2505 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2506 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2507 sizeof(mask->control[i].ht_mcs));
b119ad6e
LB		 2508 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2509 mask->control[i].vht_mcs,
2510 sizeof(mask->control[i].vht_mcs));
2ffbe6d3
FF		 2511
2512 sdata->rc_has_mcs_mask[i] = false;
b119ad6e 2513 sdata->rc_has_vht_mcs_mask[i] = false;
2ffbe6d3
FF		 2514 if (!sband)
2515 continue;
2516
b119ad6e
LB		 2517 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2518 if (~sdata->rc_rateidx_mcs_mask[i][j])
2ffbe6d3 2519 sdata->rc_has_mcs_mask[i] = true;
b119ad6e
LB		 2520
2521 if (~sdata->rc_rateidx_vht_mcs_mask[i][j])
2522 sdata->rc_has_vht_mcs_mask[i] = true;
2523
2524 if (sdata->rc_has_mcs_mask[i] &&
2525 sdata->rc_has_vht_mcs_mask[i])
2ffbe6d3 2526 break;
b119ad6e 2527 }
19468413 2528 }
9930380f 2529
37eb0b16 2530 return 0;
9930380f
JB		 2531}
2532
eaa336b0
EP		 2533static bool ieee80211_coalesce_started_roc(struct ieee80211_local *local,
2534 struct ieee80211_roc_work *new_roc,
2535 struct ieee80211_roc_work *cur_roc)
2536{
252ec2b3
JB		 2537 unsigned long now = jiffies;
2538 unsigned long remaining = cur_roc->hw_start_time +
2539 msecs_to_jiffies(cur_roc->duration) -
2540 now;
eaa336b0
EP		 2541
2542 if (WARN_ON(!cur_roc->started || !cur_roc->hw_begun))
2543 return false;
2544
252ec2b3
JB		 2545 /* if it doesn't fit entirely, schedule a new one */
2546 if (new_roc->duration > jiffies_to_msecs(remaining))
eaa336b0
EP		 2547 return false;
2548
2549 ieee80211_handle_roc_started(new_roc);
2550
252ec2b3
JB		 2551 /* add to dependents so we send the expired event properly */
2552 list_add_tail(&new_roc->list, &cur_roc->dependents);
eaa336b0
EP		 2553 return true;
2554}
2555
3b79af97
JB		 2556static u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
2557{
2558 lockdep_assert_held(&local->mtx);
2559
2560 local->roc_cookie_counter++;
2561
2562 /* wow, you wrapped 64 bits ... more likely a bug */
2563 if (WARN_ON(local->roc_cookie_counter == 0))
2564 local->roc_cookie_counter++;
2565
2566 return local->roc_cookie_counter;
2567}
2568
2eb278e0
JB		 2569static int ieee80211_start_roc_work(struct ieee80211_local *local,
2570 struct ieee80211_sub_if_data *sdata,
2571 struct ieee80211_channel *channel,
2eb278e0 2572 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2573 struct sk_buff *txskb,
2574 enum ieee80211_roc_type type)
2eb278e0
JB		 2575{
2576 struct ieee80211_roc_work *roc, *tmp;
2577 bool queued = false;
21f83589 2578 int ret;
21f83589
JB		 2579
2580 lockdep_assert_held(&local->mtx);
2581
fe57d9f5
JB		 2582 if (local->use_chanctx && !local->ops->remain_on_channel)
2583 return -EOPNOTSUPP;
2584
2eb278e0
JB		 2585 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2586 if (!roc)
2587 return -ENOMEM;
2588
2fae062e
IP		 2589 /*
2590 * If the duration is zero, then the driver
2591 * wouldn't actually do anything. Set it to
2592 * 10 for now.
2593 *
2594 * TODO: cancel the off-channel operation
2595 * when we get the SKB's TX status and
2596 * the wait time was zero before.
2597 */
2598 if (!duration)
2599 duration = 10;
2600
2eb278e0 2601 roc->chan = channel;
2eb278e0
JB		 2602 roc->duration = duration;
2603 roc->req_duration = duration;
2604 roc->frame = txskb;
d339d5ca 2605 roc->type = type;
2eb278e0
JB		 2606 roc->sdata = sdata;
2607 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2608 INIT_LIST_HEAD(&roc->dependents);
2609
2f617435
EP		 2610 /*
2611 * cookie is either the roc cookie (for normal roc)
2612 * or the SKB (for mgmt TX)
2613 */
2614 if (!txskb) {
3b79af97 2615 roc->cookie = ieee80211_mgmt_tx_cookie(local);
2f617435
EP		 2616 *cookie = roc->cookie;
2617 } else {
3b79af97 2618 roc->mgmt_tx_cookie = *cookie;
2f617435
EP		 2619 }
2620
2eb278e0 2621 /* if there's one pending or we're scanning, queue this one */
164eb02d 2622 if (!list_empty(&local->roc_list) ||
5cbc95a7 2623 local->scanning || ieee80211_is_radar_required(local))
2eb278e0
JB		 2624 goto out_check_combine;
2625
2626 /* if not HW assist, just queue & schedule work */
2627 if (!local->ops->remain_on_channel) {
2628 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2629 goto out_queue;
2630 }
2631
2632 /* otherwise actually kick it off here (for error handling) */
2633
d339d5ca 2634 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2635 if (ret) {
2eb278e0
JB		 2636 kfree(roc);
2637 return ret;
21f83589
JB		 2638 }
2639
2eb278e0
JB		 2640 roc->started = true;
2641 goto out_queue;
2642
2643 out_check_combine:
2644 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2645 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2646 continue;
2647
2648 /*
2649 * Extend this ROC if possible:
2650 *
2651 * If it hasn't started yet, just increase the duration
2652 * and add the new one to the list of dependents.
d339d5ca
IP		 2653 * If the type of the new ROC has higher priority, modify the
2654 * type of the previous one to match that of the new one.
2eb278e0
JB		 2655 */
2656 if (!tmp->started) {
2657 list_add_tail(&roc->list, &tmp->dependents);
2658 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2659 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2660 queued = true;
2661 break;
2662 }
2663
2664 /* If it has already started, it's more difficult ... */
2665 if (local->ops->remain_on_channel) {
2eb278e0
JB		 2666 /*
2667 * In the offloaded ROC case, if it hasn't begun, add
2668 * this new one to the dependent list to be handled
d339d5ca 2669 * when the master one begins. If it has begun,
252ec2b3
JB		 2670 * check if it fits entirely within the existing one,
2671 * in which case it will just be dependent as well.
2672 * Otherwise, schedule it by itself.
2eb278e0
JB		 2673 */
2674 if (!tmp->hw_begun) {
2675 list_add_tail(&roc->list, &tmp->dependents);
2676 queued = true;
2677 break;
2678 }
2679
eaa336b0 2680 if (ieee80211_coalesce_started_roc(local, roc, tmp))
2eb278e0 2681 queued = true;
2eb278e0
JB		 2682 } else if (del_timer_sync(&tmp->work.timer)) {
2683 unsigned long new_end;
2684
2685 /*
2686 * In the software ROC case, cancel the timer, if
2687 * that fails then the finish work is already
2688 * queued/pending and thus we queue the new ROC
2689 * normally, if that succeeds then we can extend
2690 * the timer duration and TX the frame (if any.)
2691 */
2692
2693 list_add_tail(&roc->list, &tmp->dependents);
2694 queued = true;
2695
2696 new_end = jiffies + msecs_to_jiffies(roc->duration);
2697
2698 /* ok, it was started & we canceled timer */
2699 if (time_after(new_end, tmp->work.timer.expires))
2700 mod_timer(&tmp->work.timer, new_end);
2701 else
2702 add_timer(&tmp->work.timer);
2703
2704 ieee80211_handle_roc_started(roc);
2705 }
2706 break;
2707 }
2708
2709 out_queue:
2710 if (!queued)
2711 list_add_tail(&roc->list, &local->roc_list);
2712
2eb278e0 2713 return 0;
21f83589
JB		 2714}
2715
b8bc4b0a 2716static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2717 struct wireless_dev *wdev,
b8bc4b0a 2718 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2719 unsigned int duration,
2720 u64 *cookie)
2721{
71bbc994 2722 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2723 struct ieee80211_local *local = sdata->local;
2eb278e0 2724 int ret;
21f83589 2725
2eb278e0 2726 mutex_lock(&local->mtx);
42d97a59 2727 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2728 duration, cookie, NULL,
2729 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2730 mutex_unlock(&local->mtx);
b8bc4b0a 2731
2eb278e0 2732 return ret;
b8bc4b0a
JB		 2733}
2734
2eb278e0
JB		 2735static int ieee80211_cancel_roc(struct ieee80211_local *local,
2736 u64 cookie, bool mgmt_tx)
21f83589 2737{
2eb278e0 2738 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2739 int ret;
2740
2eb278e0
JB		 2741 mutex_lock(&local->mtx);
2742 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2743 struct ieee80211_roc_work *dep, *tmp2;
2744
2745 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2746 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2747 continue;
2748 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2749 continue;
2750 /* found dependent item -- just remove it */
2751 list_del(&dep->list);
2752 mutex_unlock(&local->mtx);
2753
3fbd45ca 2754 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2755 return 0;
2756 }
2757
50febf6a 2758 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2759 continue;
2760 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2761 continue;
21f83589 2762
2eb278e0
JB		 2763 found = roc;
2764 break;
2765 }
21f83589 2766
2eb278e0
JB		 2767 if (!found) {
2768 mutex_unlock(&local->mtx);
2769 return -ENOENT;
2770 }
21f83589 2771
e979e33c
JB		 2772 /*
2773 * We found the item to cancel, so do that. Note that it
2774 * may have dependents, which we also cancel (and send
2775 * the expired signal for.) Not doing so would be quite
2776 * tricky here, but we may need to fix it later.
2777 */
2778
2eb278e0
JB		 2779 if (local->ops->remain_on_channel) {
2780 if (found->started) {
2781 ret = drv_cancel_remain_on_channel(local);
2782 if (WARN_ON_ONCE(ret)) {
2783 mutex_unlock(&local->mtx);
2784 return ret;
2785 }
2786 }
21f83589 2787
2eb278e0 2788 list_del(&found->list);
21f83589 2789
0f6b3f59
JB		 2790 if (found->started)
2791 ieee80211_start_next_roc(local);
2eb278e0 2792 mutex_unlock(&local->mtx);
21f83589 2793
3fbd45ca 2794 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2795 } else {
2796 /* work may be pending so use it all the time */
2797 found->abort = true;
2798 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2799
21f83589
JB		 2800 mutex_unlock(&local->mtx);
2801
2eb278e0
JB		 2802 /* work will clean up etc */
2803 flush_delayed_work(&found->work);
3fbd45ca
JB		 2804 WARN_ON(!found->to_be_freed);
2805 kfree(found);
21f83589 2806 }
b8bc4b0a 2807
2eb278e0 2808 return 0;
b8bc4b0a
JB		 2809}
2810
2eb278e0 2811static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2812 struct wireless_dev *wdev,
2eb278e0 2813 u64 cookie)
f30221e4 2814{
71bbc994 2815 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2816 struct ieee80211_local *local = sdata->local;
f30221e4 2817
2eb278e0 2818 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2819}
2820
164eb02d
SW		 2821static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2822 struct net_device *dev,
31559f35
JD		 2823 struct cfg80211_chan_def *chandef,
2824 u32 cac_time_ms)
164eb02d
SW		 2825{
2826 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2827 struct ieee80211_local *local = sdata->local;
164eb02d
SW		 2828 int err;
2829
34a3740d
JB		 2830 mutex_lock(&local->mtx);
2831 if (!list_empty(&local->roc_list) || local->scanning) {
2832 err = -EBUSY;
2833 goto out_unlock;
2834 }
164eb02d
SW		 2835
2836 /* whatever, but channel contexts should not complain about that one */
2837 sdata->smps_mode = IEEE80211_SMPS_OFF;
2838 sdata->needed_rx_chains = local->rx_chains;
164eb02d 2839
164eb02d
SW		 2840 err = ieee80211_vif_use_channel(sdata, chandef,
2841 IEEE80211_CHANCTX_SHARED);
164eb02d 2842 if (err)
34a3740d 2843 goto out_unlock;
164eb02d 2844
164eb02d 2845 ieee80211_queue_delayed_work(&sdata->local->hw,
31559f35
JD		 2846 &sdata->dfs_cac_timer_work,
2847 msecs_to_jiffies(cac_time_ms));
164eb02d 2848
34a3740d
JB		 2849 out_unlock:
2850 mutex_unlock(&local->mtx);
2851 return err;
164eb02d
SW		 2852}
2853
73da7d5b
SW		 2854static struct cfg80211_beacon_data *
2855cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2856{
2857 struct cfg80211_beacon_data *new_beacon;
2858 u8 *pos;
2859 int len;
2860
2861 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2862 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2863 beacon->probe_resp_len;
2864
2865 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2866 if (!new_beacon)
2867 return NULL;
2868
2869 pos = (u8 *)(new_beacon + 1);
2870 if (beacon->head_len) {
2871 new_beacon->head_len = beacon->head_len;
2872 new_beacon->head = pos;
2873 memcpy(pos, beacon->head, beacon->head_len);
2874 pos += beacon->head_len;
2875 }
2876 if (beacon->tail_len) {
2877 new_beacon->tail_len = beacon->tail_len;
2878 new_beacon->tail = pos;
2879 memcpy(pos, beacon->tail, beacon->tail_len);
2880 pos += beacon->tail_len;
2881 }
2882 if (beacon->beacon_ies_len) {
2883 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2884 new_beacon->beacon_ies = pos;
2885 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2886 pos += beacon->beacon_ies_len;
2887 }
2888 if (beacon->proberesp_ies_len) {
2889 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2890 new_beacon->proberesp_ies = pos;
2891 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2892 pos += beacon->proberesp_ies_len;
2893 }
2894 if (beacon->assocresp_ies_len) {
2895 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2896 new_beacon->assocresp_ies = pos;
2897 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2898 pos += beacon->assocresp_ies_len;
2899 }
2900 if (beacon->probe_resp_len) {
2901 new_beacon->probe_resp_len = beacon->probe_resp_len;
2902 beacon->probe_resp = pos;
2903 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2904 pos += beacon->probe_resp_len;
2905 }
2906
2907 return new_beacon;
2908}
2909
66e01cf9 2910void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2911{
66e01cf9 2912 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2913
66e01cf9
LC		 2914 ieee80211_queue_work(&sdata->local->hw,
2915 &sdata->csa_finalize_work);
2916}
2917EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 2918
66199506
MK		 2919static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2920 u32 *changed)
66e01cf9 2921{
66199506 2922 int err;
7578d575 2923
cd7760e6
SW		 2924 switch (sdata->vif.type) {
2925 case NL80211_IFTYPE_AP:
af296bdb
MK		 2926 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2927 NULL);
97518af1
MK		 2928 kfree(sdata->u.ap.next_beacon);
2929 sdata->u.ap.next_beacon = NULL;
2930
cd7760e6 2931 if (err < 0)
66199506
MK		 2932 return err;
2933 *changed |= err;
cd7760e6
SW		 2934 break;
2935 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 2936 err = ieee80211_ibss_finish_csa(sdata);
2937 if (err < 0)
66199506
MK		 2938 return err;
2939 *changed |= err;
cd7760e6 2940 break;
b8456a14
CYY		 2941#ifdef CONFIG_MAC80211_MESH
2942 case NL80211_IFTYPE_MESH_POINT:
2943 err = ieee80211_mesh_finish_csa(sdata);
2944 if (err < 0)
66199506
MK		 2945 return err;
2946 *changed |= err;
b8456a14
CYY		 2947 break;
2948#endif
cd7760e6
SW		 2949 default:
2950 WARN_ON(1);
66199506
MK		 2951 return -EINVAL;
2952 }
2953
2954 return 0;
2955}
2956
cf8767dd 2957static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
66199506
MK		 2958{
2959 struct ieee80211_local *local = sdata->local;
2960 u32 changed = 0;
2961 int err;
2962
2963 sdata_assert_lock(sdata);
2964 lockdep_assert_held(&local->mtx);
03078de4 2965 lockdep_assert_held(&local->chanctx_mtx);
66199506 2966
03078de4
MK		 2967 /*
2968 * using reservation isn't immediate as it may be deferred until later
2969 * with multi-vif. once reservation is complete it will re-schedule the
2970 * work with no reserved_chanctx so verify chandef to check if it
2971 * completed successfully
2972 */
66199506 2973
03078de4
MK		 2974 if (sdata->reserved_chanctx) {
2975 /*
2976 * with multi-vif csa driver may call ieee80211_csa_finish()
2977 * many times while waiting for other interfaces to use their
2978 * reservations
2979 */
2980 if (sdata->reserved_ready)
2981 return 0;
2982
408b18ab 2983 return ieee80211_vif_use_reserved_context(sdata);
cd7760e6 2984 }
73da7d5b 2985
03078de4
MK		 2986 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2987 &sdata->csa_chandef))
2988 return -EINVAL;
2989
66199506
MK		 2990 sdata->vif.csa_active = false;
2991
2992 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2993 if (err)
cf8767dd 2994 return err;
faf046e7 2995
66199506 2996 ieee80211_bss_info_change_notify(sdata, changed);
59af6928 2997
a46992b4
LC		 2998 if (sdata->csa_block_tx) {
2999 ieee80211_wake_vif_queues(local, sdata,
3000 IEEE80211_QUEUE_STOP_REASON_CSA);
3001 sdata->csa_block_tx = false;
3002 }
cf8767dd 3003
f1d65583
LC		 3004 err = drv_post_channel_switch(sdata);
3005 if (err)
3006 return err;
3007
3008 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
3009
cf8767dd
MK		 3010 return 0;
3011}
3012
3013static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
3014{
3015 if (__ieee80211_csa_finalize(sdata)) {
3016 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
3017 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
3018 GFP_KERNEL);
3019 }
66e01cf9
LC		 3020}
3021
3022void ieee80211_csa_finalize_work(struct work_struct *work)
3023{
3024 struct ieee80211_sub_if_data *sdata =
3025 container_of(work, struct ieee80211_sub_if_data,
3026 csa_finalize_work);
59af6928 3027 struct ieee80211_local *local = sdata->local;
66e01cf9
LC		 3028
3029 sdata_lock(sdata);
59af6928 3030 mutex_lock(&local->mtx);
03078de4 3031 mutex_lock(&local->chanctx_mtx);
59af6928 3032
66e01cf9
LC		 3033 /* AP might have been stopped while waiting for the lock. */
3034 if (!sdata->vif.csa_active)
3035 goto unlock;
3036
3037 if (!ieee80211_sdata_running(sdata))
3038 goto unlock;
3039
3040 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 3041
3042unlock:
03078de4 3043 mutex_unlock(&local->chanctx_mtx);
59af6928 3044 mutex_unlock(&local->mtx);
e487eaeb 3045 sdata_unlock(sdata);
73da7d5b
SW		 3046}
3047
37fa2bdd
MK		 3048static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
3049 struct cfg80211_csa_settings *params,
3050 u32 *changed)
73da7d5b 3051{
af296bdb 3052 struct ieee80211_csa_settings csa = {};
37fa2bdd 3053 int err;
73da7d5b 3054
73da7d5b
SW		 3055 switch (sdata->vif.type) {
3056 case NL80211_IFTYPE_AP:
cd7760e6
SW		 3057 sdata->u.ap.next_beacon =
3058 cfg80211_beacon_dup(&params->beacon_after);
3059 if (!sdata->u.ap.next_beacon)
3060 return -ENOMEM;
3061
66e01cf9
LC		 3062 /*
3063 * With a count of 0, we don't have to wait for any
3064 * TBTT before switching, so complete the CSA
3065 * immediately. In theory, with a count == 1 we
3066 * should delay the switch until just before the next
3067 * TBTT, but that would complicate things so we switch
3068 * immediately too. If we would delay the switch
3069 * until the next TBTT, we would have to set the probe
3070 * response here.
3071 *
3072 * TODO: A channel switch with count <= 1 without
3073 * sending a CSA action frame is kind of useless,
3074 * because the clients won't know we're changing
3075 * channels. The action frame must be implemented
3076 * either here or in the userspace.
3077 */
3078 if (params->count <= 1)
3079 break;
3080
0d06d9ba
AO		 3081 if ((params->n_counter_offsets_beacon >
3082 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
3083 (params->n_counter_offsets_presp >
3084 IEEE80211_MAX_CSA_COUNTERS_NUM))
3085 return -EINVAL;
9a774c78 3086
af296bdb
MK		 3087 csa.counter_offsets_beacon = params->counter_offsets_beacon;
3088 csa.counter_offsets_presp = params->counter_offsets_presp;
3089 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
3090 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
3091 csa.count = params->count;
9a774c78 3092
af296bdb 3093 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
cd7760e6
SW		 3094 if (err < 0) {
3095 kfree(sdata->u.ap.next_beacon);
3096 return err;
3097 }
37fa2bdd 3098 *changed |= err;
66e01cf9 3099
cd7760e6
SW		 3100 break;
3101 case NL80211_IFTYPE_ADHOC:
3102 if (!sdata->vif.bss_conf.ibss_joined)
3103 return -EINVAL;
3104
3105 if (params->chandef.width != sdata->u.ibss.chandef.width)
3106 return -EINVAL;
3107
3108 switch (params->chandef.width) {
3109 case NL80211_CHAN_WIDTH_40:
3110 if (cfg80211_get_chandef_type(&params->chandef) !=
3111 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
3112 return -EINVAL;
3113 case NL80211_CHAN_WIDTH_5:
3114 case NL80211_CHAN_WIDTH_10:
3115 case NL80211_CHAN_WIDTH_20_NOHT:
3116 case NL80211_CHAN_WIDTH_20:
3117 break;
3118 default:
3119 return -EINVAL;
3120 }
3121
3122 /* changes into another band are not supported */
3123 if (sdata->u.ibss.chandef.chan->band !=
3124 params->chandef.chan->band)
3125 return -EINVAL;
3126
66e01cf9
LC		 3127 /* see comments in the NL80211_IFTYPE_AP block */
3128 if (params->count > 1) {
3129 err = ieee80211_ibss_csa_beacon(sdata, params);
3130 if (err < 0)
3131 return err;
37fa2bdd 3132 *changed |= err;
66e01cf9
LC		 3133 }
3134
3135 ieee80211_send_action_csa(sdata, params);
3136
73da7d5b 3137 break;
c6da674a 3138#ifdef CONFIG_MAC80211_MESH
37fa2bdd
MK		 3139 case NL80211_IFTYPE_MESH_POINT: {
3140 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a 3141
c6da674a
CYY		 3142 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3143 return -EINVAL;
3144
3145 /* changes into another band are not supported */
3146 if (sdata->vif.bss_conf.chandef.chan->band !=
3147 params->chandef.chan->band)
3148 return -EINVAL;
3149
c782bf8c 3150 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 3151 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 3152 if (!ifmsh->pre_value)
3153 ifmsh->pre_value = 1;
3154 else
3155 ifmsh->pre_value++;
3156 }
0cb4d4dc 3157
66e01cf9
LC		 3158 /* see comments in the NL80211_IFTYPE_AP block */
3159 if (params->count > 1) {
3160 err = ieee80211_mesh_csa_beacon(sdata, params);
3161 if (err < 0) {
3162 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3163 return err;
3164 }
37fa2bdd 3165 *changed |= err;
3f718fd8 3166 }
66e01cf9
LC		 3167
3168 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3169 ieee80211_send_action_csa(sdata, params);
3170
c6da674a 3171 break;
37fa2bdd 3172 }
c6da674a 3173#endif
73da7d5b
SW		 3174 default:
3175 return -EOPNOTSUPP;
3176 }
3177
37fa2bdd
MK		 3178 return 0;
3179}
3180
f29f58a9
LC		 3181static int
3182__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3183 struct cfg80211_csa_settings *params)
37fa2bdd
MK		 3184{
3185 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3186 struct ieee80211_local *local = sdata->local;
6d027bcc 3187 struct ieee80211_channel_switch ch_switch;
2b32713d 3188 struct ieee80211_chanctx_conf *conf;
37fa2bdd 3189 struct ieee80211_chanctx *chanctx;
b08cc24e
JB		 3190 u32 changed = 0;
3191 int err;
37fa2bdd
MK		 3192
3193 sdata_assert_lock(sdata);
59af6928 3194 lockdep_assert_held(&local->mtx);
37fa2bdd
MK		 3195
3196 if (!list_empty(&local->roc_list) || local->scanning)
3197 return -EBUSY;
3198
3199 if (sdata->wdev.cac_started)
3200 return -EBUSY;
3201
3202 if (cfg80211_chandef_identical(&params->chandef,
3203 &sdata->vif.bss_conf.chandef))
3204 return -EINVAL;
3205
03078de4
MK		 3206 /* don't allow another channel switch if one is already active. */
3207 if (sdata->vif.csa_active)
3208 return -EBUSY;
3209
2b32713d
MK		 3210 mutex_lock(&local->chanctx_mtx);
3211 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3212 lockdep_is_held(&local->chanctx_mtx));
3213 if (!conf) {
03078de4
MK		 3214 err = -EBUSY;
3215 goto out;
37fa2bdd
MK		 3216 }
3217
2b32713d 3218 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
03078de4
MK		 3219 if (!chanctx) {
3220 err = -EBUSY;
3221 goto out;
37fa2bdd 3222 }
37fa2bdd 3223
000baa5d
LC		 3224 ch_switch.timestamp = 0;
3225 ch_switch.device_timestamp = 0;
3226 ch_switch.block_tx = params->block_tx;
3227 ch_switch.chandef = params->chandef;
3228 ch_switch.count = params->count;
3229
6d027bcc
LC		 3230 err = drv_pre_channel_switch(sdata, &ch_switch);
3231 if (err)
3232 goto out;
3233
03078de4
MK		 3234 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3235 chanctx->mode,
3236 params->radar_required);
3237 if (err)
3238 goto out;
37fa2bdd 3239
03078de4
MK		 3240 /* if reservation is invalid then this will fail */
3241 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3242 if (err) {
3243 ieee80211_vif_unreserve_chanctx(sdata);
3244 goto out;
3245 }
37fa2bdd
MK		 3246
3247 err = ieee80211_set_csa_beacon(sdata, params, &changed);
03078de4
MK		 3248 if (err) {
3249 ieee80211_vif_unreserve_chanctx(sdata);
3250 goto out;
3251 }
37fa2bdd 3252
33787fc4 3253 sdata->csa_chandef = params->chandef;
59af6928 3254 sdata->csa_block_tx = params->block_tx;
73da7d5b
SW		 3255 sdata->vif.csa_active = true;
3256
59af6928 3257 if (sdata->csa_block_tx)
a46992b4
LC		 3258 ieee80211_stop_vif_queues(local, sdata,
3259 IEEE80211_QUEUE_STOP_REASON_CSA);
59af6928 3260
2f457293
LC		 3261 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3262 params->count);
3263
66e01cf9
LC		 3264 if (changed) {
3265 ieee80211_bss_info_change_notify(sdata, changed);
3266 drv_channel_switch_beacon(sdata, &params->chandef);
3267 } else {
3268 /* if the beacon didn't change, we can finalize immediately */
3269 ieee80211_csa_finalize(sdata);
3270 }
73da7d5b 3271
03078de4
MK		 3272out:
3273 mutex_unlock(&local->chanctx_mtx);
3274 return err;
73da7d5b
SW		 3275}
3276
59af6928
MK		 3277int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3278 struct cfg80211_csa_settings *params)
3279{
3280 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3281 struct ieee80211_local *local = sdata->local;
3282 int err;
3283
3284 mutex_lock(&local->mtx);
3285 err = __ieee80211_channel_switch(wiphy, dev, params);
3286 mutex_unlock(&local->mtx);
3287
3288 return err;
3289}
3290
3b79af97
JB		 3291static struct sk_buff *ieee80211_make_ack_skb(struct ieee80211_local *local,
3292 struct sk_buff *skb, u64 *cookie,
3293 gfp_t gfp)
3294{
3295 unsigned long spin_flags;
3296 struct sk_buff *ack_skb;
3297 int id;
3298
3299 ack_skb = skb_copy(skb, gfp);
3300 if (!ack_skb)
3301 return ERR_PTR(-ENOMEM);
3302
3303 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3304 id = idr_alloc(&local->ack_status_frames, ack_skb,
3305 1, 0x10000, GFP_ATOMIC);
3306 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3307
3308 if (id < 0) {
3309 kfree_skb(ack_skb);
3310 return ERR_PTR(-ENOMEM);
3311 }
3312
3313 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3314
3315 *cookie = ieee80211_mgmt_tx_cookie(local);
3316 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3317
3318 return ack_skb;
3319}
3320
71bbc994 3321static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3322 struct cfg80211_mgmt_tx_params *params,
3323 u64 *cookie)
026331c4 3324{
71bbc994 3325 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d 3326 struct ieee80211_local *local = sdata->local;
b2eb0ee6 3327 struct sk_buff *skb, *ack_skb;
9d38d85d 3328 struct sta_info *sta;
b176e629 3329 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3330 bool need_offchan = false;
e247bd90 3331 u32 flags;
2eb278e0 3332 int ret;
387910cc 3333 u8 *data;
f7ca38df 3334
b176e629 3335 if (params->dont_wait_for_ack)
e247bd90
JB		 3336 flags = IEEE80211_TX_CTL_NO_ACK;
3337 else
3338 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3339 IEEE80211_TX_CTL_REQ_TX_STATUS;
3340
b176e629 3341 if (params->no_cck)
aad14ceb
RM		 3342 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3343
9d38d85d
JB		 3344 switch (sdata->vif.type) {
3345 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3346 if (!sdata->vif.bss_conf.ibss_joined)
3347 need_offchan = true;
3348 /* fall through */
3349#ifdef CONFIG_MAC80211_MESH
3350 case NL80211_IFTYPE_MESH_POINT:
3351 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3352 !sdata->u.mesh.mesh_id_len)
3353 need_offchan = true;
3354 /* fall through */
3355#endif
663fcafd
JB		 3356 case NL80211_IFTYPE_AP:
3357 case NL80211_IFTYPE_AP_VLAN:
3358 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3359 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3360 !ieee80211_vif_is_mesh(&sdata->vif) &&
3361 !rcu_access_pointer(sdata->bss->beacon))
3362 need_offchan = true;
663fcafd 3363 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3364 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3365 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3366 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3367 break;
3368 rcu_read_lock();
3369 sta = sta_info_get(sdata, mgmt->da);
3370 rcu_read_unlock();
3371 if (!sta)
3372 return -ENOLINK;
3373 break;
3374 case NL80211_IFTYPE_STATION:
663fcafd 3375 case NL80211_IFTYPE_P2P_CLIENT:
b8e69d51
MG		 3376 sdata_lock(sdata);
3377 if (!sdata->u.mgd.associated ||
3378 (params->offchan && params->wait &&
3379 local->ops->remain_on_channel &&
3380 memcmp(sdata->u.mgd.associated->bssid,
3381 mgmt->bssid, ETH_ALEN)))
2eb278e0 3382 need_offchan = true;
b8e69d51 3383 sdata_unlock(sdata);
9d38d85d 3384 break;
f142c6b9
JB		 3385 case NL80211_IFTYPE_P2P_DEVICE:
3386 need_offchan = true;
3387 break;
9d38d85d
JB		 3388 default:
3389 return -EOPNOTSUPP;
3390 }
3391
f7aeb6fb
AQ		 3392 /* configurations requiring offchan cannot work if no channel has been
3393 * specified
3394 */
b176e629 3395 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3396 return -EINVAL;
3397
2eb278e0
JB		 3398 mutex_lock(&local->mtx);
3399
3400 /* Check if the operating channel is the requested channel */
3401 if (!need_offchan) {
55de908a
JB		 3402 struct ieee80211_chanctx_conf *chanctx_conf;
3403
3404 rcu_read_lock();
3405 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3406
f7aeb6fb 3407 if (chanctx_conf) {
b176e629
AO		 3408 need_offchan = params->chan &&
3409 (params->chan !=
3410 chanctx_conf->def.chan);
3411 } else if (!params->chan) {
f7aeb6fb
AQ		 3412 ret = -EINVAL;
3413 rcu_read_unlock();
3414 goto out_unlock;
3415 } else {
2eb278e0 3416 need_offchan = true;
f7aeb6fb 3417 }
55de908a 3418 rcu_read_unlock();
2eb278e0
JB		 3419 }
3420
b176e629 3421 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3422 ret = -EBUSY;
3423 goto out_unlock;
3424 }
3425
b176e629 3426 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3427 if (!skb) {
3428 ret = -ENOMEM;
3429 goto out_unlock;
3430 }
9d38d85d
JB		 3431 skb_reserve(skb, local->hw.extra_tx_headroom);
3432
387910cc
AO		 3433 data = skb_put(skb, params->len);
3434 memcpy(data, params->buf, params->len);
3435
3436 /* Update CSA counters */
3437 if (sdata->vif.csa_active &&
3438 (sdata->vif.type == NL80211_IFTYPE_AP ||
8df734e8 3439 sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
387910cc
AO		 3440 sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3441 params->n_csa_offsets) {
3442 int i;
af296bdb 3443 struct beacon_data *beacon = NULL;
387910cc 3444
af296bdb
MK		 3445 rcu_read_lock();
3446
3447 if (sdata->vif.type == NL80211_IFTYPE_AP)
3448 beacon = rcu_dereference(sdata->u.ap.beacon);
3449 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3450 beacon = rcu_dereference(sdata->u.ibss.presp);
3451 else if (ieee80211_vif_is_mesh(&sdata->vif))
3452 beacon = rcu_dereference(sdata->u.mesh.beacon);
3453
3454 if (beacon)
3455 for (i = 0; i < params->n_csa_offsets; i++)
3456 data[params->csa_offsets[i]] =
3457 beacon->csa_current_counter;
3458
3459 rcu_read_unlock();
387910cc 3460 }
9d38d85d
JB		 3461
3462 IEEE80211_SKB_CB(skb)->flags = flags;
3463
3464 skb->dev = sdata->dev;
9d38d85d 3465
b2eb0ee6 3466 if (!params->dont_wait_for_ack) {
3b79af97 3467 /* make a copy to preserve the frame contents
b2eb0ee6
JB		 3468 * in case of encryption.
3469 */
3b79af97
JB		 3470 ack_skb = ieee80211_make_ack_skb(local, skb, cookie,
3471 GFP_KERNEL);
3472 if (IS_ERR(ack_skb)) {
3473 ret = PTR_ERR(ack_skb);
b2eb0ee6
JB		 3474 kfree_skb(skb);
3475 goto out_unlock;
3476 }
b2eb0ee6
JB		 3477 } else {
3478 /* for cookie below */
3479 ack_skb = skb;
3480 }
3481
2eb278e0 3482 if (!need_offchan) {
f30221e4 3483 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3484 ret = 0;
3485 goto out_unlock;
f30221e4
JB		 3486 }
3487
6c17b77b
SF		 3488 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3489 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
30686bf7 3490 if (ieee80211_hw_check(&local->hw, QUEUE_CONTROL))
2eb278e0
JB		 3491 IEEE80211_SKB_CB(skb)->hw_queue =
3492 local->hw.offchannel_tx_hw_queue;
f30221e4 3493
2eb278e0 3494 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3495 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3496 params->wait, cookie, skb,
d339d5ca 3497 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3498 if (ret)
3499 kfree_skb(skb);
3500 out_unlock:
3501 mutex_unlock(&local->mtx);
3502 return ret;
026331c4
JM		 3503}
3504
f30221e4 3505static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3506 struct wireless_dev *wdev,
f30221e4
JB		 3507 u64 cookie)
3508{
71bbc994 3509 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3510
2eb278e0 3511 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3512}
3513
7be5086d 3514static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3515 struct wireless_dev *wdev,
7be5086d
JB		 3516 u16 frame_type, bool reg)
3517{
3518 struct ieee80211_local *local = wiphy_priv(wiphy);
3519
6abe0563 3520 switch (frame_type) {
6abe0563
WH		 3521 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3522 if (reg)
3523 local->probe_req_reg++;
3524 else
3525 local->probe_req_reg--;
7be5086d 3526
35f5149e
FF		 3527 if (!local->open_count)
3528 break;
3529
6abe0563
WH		 3530 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3531 break;
3532 default:
3533 break;
3534 }
7be5086d
JB		 3535}
3536
15d96753
BR		 3537static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3538{
3539 struct ieee80211_local *local = wiphy_priv(wiphy);
3540
3541 if (local->started)
3542 return -EOPNOTSUPP;
3543
3544 return drv_set_antenna(local, tx_ant, rx_ant);
3545}
3546
3547static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3548{
3549 struct ieee80211_local *local = wiphy_priv(wiphy);
3550
3551 return drv_get_antenna(local, tx_ant, rx_ant);
3552}
3553
c68f4b89
JB		 3554static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3555 struct net_device *dev,
3556 struct cfg80211_gtk_rekey_data *data)
3557{
3558 struct ieee80211_local *local = wiphy_priv(wiphy);
3559 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3560
3561 if (!local->ops->set_rekey_data)
3562 return -EOPNOTSUPP;
3563
3564 drv_set_rekey_data(local, sdata, data);
3565
3566 return 0;
3567}
3568
06500736
JB		 3569static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3570 const u8 *peer, u64 *cookie)
3571{
3572 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3573 struct ieee80211_local *local = sdata->local;
3574 struct ieee80211_qos_hdr *nullfunc;
3b79af97 3575 struct sk_buff *skb, *ack_skb;
06500736
JB		 3576 int size = sizeof(*nullfunc);
3577 __le16 fc;
3578 bool qos;
3579 struct ieee80211_tx_info *info;
3580 struct sta_info *sta;
55de908a
JB		 3581 struct ieee80211_chanctx_conf *chanctx_conf;
3582 enum ieee80211_band band;
3b79af97
JB		 3583 int ret;
3584
3585 /* the lock is needed to assign the cookie later */
3586 mutex_lock(&local->mtx);
06500736
JB		 3587
3588 rcu_read_lock();
55de908a
JB		 3589 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3590 if (WARN_ON(!chanctx_conf)) {
3b79af97
JB		 3591 ret = -EINVAL;
3592 goto unlock;
55de908a 3593 }
4bf88530 3594 band = chanctx_conf->def.chan->band;
03bb7f42 3595 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3596 if (sta) {
a74a8c84 3597 qos = sta->sta.wme;
b4487c2d 3598 } else {
3b79af97
JB		 3599 ret = -ENOLINK;
3600 goto unlock;
b4487c2d 3601 }
06500736
JB		 3602
3603 if (qos) {
3604 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3605 IEEE80211_STYPE_QOS_NULLFUNC |
3606 IEEE80211_FCTL_FROMDS);
3607 } else {
3608 size -= 2;
3609 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3610 IEEE80211_STYPE_NULLFUNC |
3611 IEEE80211_FCTL_FROMDS);
3612 }
3613
3614 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a 3615 if (!skb) {
3b79af97
JB		 3616 ret = -ENOMEM;
3617 goto unlock;
55de908a 3618 }
06500736
JB		 3619
3620 skb->dev = dev;
3621
3622 skb_reserve(skb, local->hw.extra_tx_headroom);
3623
3624 nullfunc = (void *) skb_put(skb, size);
3625 nullfunc->frame_control = fc;
3626 nullfunc->duration_id = 0;
3627 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3628 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3629 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3630 nullfunc->seq_ctrl = 0;
3631
3632 info = IEEE80211_SKB_CB(skb);
3633
3634 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3635 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
73c4e195 3636 info->band = band;
06500736
JB		 3637
3638 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3639 skb->priority = 7;
3640 if (qos)
3641 nullfunc->qos_ctrl = cpu_to_le16(7);
3642
3b79af97
JB		 3643 ack_skb = ieee80211_make_ack_skb(local, skb, cookie, GFP_ATOMIC);
3644 if (IS_ERR(ack_skb)) {
3645 kfree_skb(skb);
3646 ret = PTR_ERR(ack_skb);
3647 goto unlock;
3648 }
3649
06500736 3650 local_bh_disable();
7c10770f 3651 ieee80211_xmit(sdata, sta, skb);
06500736 3652 local_bh_enable();
3b79af97
JB		 3653
3654 ret = 0;
3655unlock:
55de908a 3656 rcu_read_unlock();
3b79af97 3657 mutex_unlock(&local->mtx);
06500736 3658
3b79af97 3659 return ret;
06500736
JB		 3660}
3661
683b6d3b
JB		 3662static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3663 struct wireless_dev *wdev,
3664 struct cfg80211_chan_def *chandef)
5b7ccaf3 3665{
55de908a 3666 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3667 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3668 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3669 int ret = -ENODATA;
55de908a
JB		 3670
3671 rcu_read_lock();
feda3027
JB		 3672 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3673 if (chanctx_conf) {
c12bc488 3674 *chandef = sdata->vif.bss_conf.chandef;
feda3027
JB		 3675 ret = 0;
3676 } else if (local->open_count > 0 &&
3677 local->open_count == local->monitors &&
3678 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3679 if (local->use_chanctx)
3680 *chandef = local->monitor_chandef;
3681 else
675a0b04 3682 *chandef = local->_oper_chandef;
683b6d3b 3683 ret = 0;
55de908a
JB		 3684 }
3685 rcu_read_unlock();
5b7ccaf3 3686
683b6d3b 3687 return ret;
5b7ccaf3
JB		 3688}
3689
6d52563f
JB		 3690#ifdef CONFIG_PM
3691static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3692{
3693 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3694}
3695#endif
3696
32db6b54
KP		 3697static int ieee80211_set_qos_map(struct wiphy *wiphy,
3698 struct net_device *dev,
3699 struct cfg80211_qos_map *qos_map)
3700{
3701 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3702 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3703
3704 if (qos_map) {
3705 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3706 if (!new_qos_map)
3707 return -ENOMEM;
3708 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3709 } else {
3710 /* A NULL qos_map was passed to disable QoS mapping */
3711 new_qos_map = NULL;
3712 }
3713
194ff52d 3714 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3715 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3716 if (old_qos_map)
3717 kfree_rcu(old_qos_map, rcu_head);
3718
3719 return 0;
3720}
3721
3b1700bd
JM		 3722static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3723 struct net_device *dev,
3724 struct cfg80211_chan_def *chandef)
3725{
3726 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3727 int ret;
3728 u32 changed = 0;
3729
3730 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3731 if (ret == 0)
3732 ieee80211_bss_info_change_notify(sdata, changed);
3733
3734 return ret;
3735}
3736
02219b3a
JB		 3737static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3738 u8 tsid, const u8 *peer, u8 up,
3739 u16 admitted_time)
3740{
3741 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3742 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3743 int ac = ieee802_1d_to_ac[up];
3744
3745 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3746 return -EOPNOTSUPP;
3747
3748 if (!(sdata->wmm_acm & BIT(up)))
3749 return -EINVAL;
3750
3751 if (ifmgd->tx_tspec[ac].admitted_time)
3752 return -EBUSY;
3753
3754 if (admitted_time) {
3755 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3756 ifmgd->tx_tspec[ac].tsid = tsid;
3757 ifmgd->tx_tspec[ac].up = up;
3758 }
3759
3760 return 0;
3761}
3762
3763static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3764 u8 tsid, const u8 *peer)
3765{
3766 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3767 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3768 struct ieee80211_local *local = wiphy_priv(wiphy);
3769 int ac;
3770
3771 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3772 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3773
3774 /* skip unused entries */
3775 if (!tx_tspec->admitted_time)
3776 continue;
3777
3778 if (tx_tspec->tsid != tsid)
3779 continue;
3780
3781 /* due to this new packets will be reassigned to non-ACM ACs */
3782 tx_tspec->up = -1;
3783
3784 /* Make sure that all packets have been sent to avoid to
3785 * restore the QoS params on packets that are still on the
3786 * queues.
3787 */
3788 synchronize_net();
3b24f4c6 3789 ieee80211_flush_queues(local, sdata, false);
02219b3a
JB		 3790
3791 /* restore the normal QoS parameters
3792 * (unconditionally to avoid races)
3793 */
3794 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3795 tx_tspec->downgraded = false;
3796 ieee80211_sta_handle_tspec_ac_params(sdata);
3797
3798 /* finally clear all the data */
3799 memset(tx_tspec, 0, sizeof(*tx_tspec));
3800
3801 return 0;
3802 }
3803
3804 return -ENOENT;
3805}
3806
8a47cea7 3807const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3808 .add_virtual_intf = ieee80211_add_iface,
3809 .del_virtual_intf = ieee80211_del_iface,
42613db7 3810 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3811 .start_p2p_device = ieee80211_start_p2p_device,
3812 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3813 .add_key = ieee80211_add_key,
3814 .del_key = ieee80211_del_key,
62da92fb 3815 .get_key = ieee80211_get_key,
e8cbb4cb 3816 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3817 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3818 .start_ap = ieee80211_start_ap,
3819 .change_beacon = ieee80211_change_beacon,
3820 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3821 .add_station = ieee80211_add_station,
3822 .del_station = ieee80211_del_station,
3823 .change_station = ieee80211_change_station,
7bbdd2d9 3824 .get_station = ieee80211_get_station,
c5dd9c2b 3825 .dump_station = ieee80211_dump_station,
1289723e 3826 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3827#ifdef CONFIG_MAC80211_MESH
3828 .add_mpath = ieee80211_add_mpath,
3829 .del_mpath = ieee80211_del_mpath,
3830 .change_mpath = ieee80211_change_mpath,
3831 .get_mpath = ieee80211_get_mpath,
3832 .dump_mpath = ieee80211_dump_mpath,
a2db2ed3
HR		 3833 .get_mpp = ieee80211_get_mpp,
3834 .dump_mpp = ieee80211_dump_mpp,
24bdd9f4
JC		 3835 .update_mesh_config = ieee80211_update_mesh_config,
3836 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3837 .join_mesh = ieee80211_join_mesh,
3838 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3839#endif
239281f8
RL		 3840 .join_ocb = ieee80211_join_ocb,
3841 .leave_ocb = ieee80211_leave_ocb,
9f1ba906 3842 .change_bss = ieee80211_change_bss,
31888487 3843 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3844 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3845 .suspend = ieee80211_suspend,
3846 .resume = ieee80211_resume,
2a519311 3847 .scan = ieee80211_scan,
79f460ca
LC		 3848 .sched_scan_start = ieee80211_sched_scan_start,
3849 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3850 .auth = ieee80211_auth,
3851 .assoc = ieee80211_assoc,
3852 .deauth = ieee80211_deauth,
3853 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3854 .join_ibss = ieee80211_join_ibss,
3855 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3856 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3857 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3858 .set_tx_power = ieee80211_set_tx_power,
3859 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3860 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3861 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3862 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3863 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3864 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3865 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3866 .remain_on_channel = ieee80211_remain_on_channel,
3867 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3868 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3869 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3870 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3871 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3872 .set_antenna = ieee80211_set_antenna,
3873 .get_antenna = ieee80211_get_antenna,
c68f4b89 3874 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3875 .tdls_oper = ieee80211_tdls_oper,
3876 .tdls_mgmt = ieee80211_tdls_mgmt,
a7a6bdd0
AN		 3877 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3878 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
06500736 3879 .probe_client = ieee80211_probe_client,
b53be792 3880 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3881#ifdef CONFIG_PM
3882 .set_wakeup = ieee80211_set_wakeup,
3883#endif
5b7ccaf3 3884 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3885 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3886 .channel_switch = ieee80211_channel_switch,
32db6b54 3887 .set_qos_map = ieee80211_set_qos_map,
3b1700bd 3888 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
02219b3a
JB		 3889 .add_tx_ts = ieee80211_add_tx_ts,
3890 .del_tx_ts = ieee80211_del_tx_ts,
f0706e82 3891};
Linux 6.x block layer and io_uring tree(s)