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mac80211: parse wide bandwidth channel switch IE with workaround
[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
b2eb0ee6 5 * Copyright 2013-2015 Intel Mobile Communications GmbH
f0706e82
JB		 6 *
7 * This file is GPLv2 as found in COPYING.
8 */
9
e8cbb4cb 10#include <linux/ieee80211.h>
f0706e82
JB		 11#include <linux/nl80211.h>
12#include <linux/rtnetlink.h>
5a0e3ad6 13#include <linux/slab.h>
881d966b 14#include <net/net_namespace.h>
5dfdaf58 15#include <linux/rcupdate.h>
dfe018bf 16#include <linux/if_ether.h>
f0706e82
JB		 17#include <net/cfg80211.h>
18#include "ieee80211_i.h"
24487981 19#include "driver-ops.h"
2c8dccc7 20#include "rate.h"
c5dd9c2b 21#include "mesh.h"
02219b3a 22#include "wme.h"
c5dd9c2b 23
552bff0c
JB		 24static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
25 const char *name,
6bab2e19 26 unsigned char name_assign_type,
84efbb84
JB		 27 enum nl80211_iftype type,
28 u32 *flags,
29 struct vif_params *params)
f0706e82
JB		 30{
31 struct ieee80211_local *local = wiphy_priv(wiphy);
84efbb84 32 struct wireless_dev *wdev;
8cc9a739
MW		 33 struct ieee80211_sub_if_data *sdata;
34 int err;
f0706e82 35
6bab2e19 36 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
f9e10ce4
JB		 37 if (err)
38 return ERR_PTR(err);
8cc9a739 39
f9e10ce4 40 if (type == NL80211_IFTYPE_MONITOR && flags) {
84efbb84 41 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
f9e10ce4
JB		 42 sdata->u.mntr_flags = *flags;
43 }
44
84efbb84 45 return wdev;
f0706e82
JB		 46}
47
84efbb84 48static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
f0706e82 49{
84efbb84 50 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
f0706e82 51
75636525 52 return 0;
f0706e82
JB		 53}
54
e36d56b6
JB		 55static int ieee80211_change_iface(struct wiphy *wiphy,
56 struct net_device *dev,
2ec600d6
LCC		 57 enum nl80211_iftype type, u32 *flags,
58 struct vif_params *params)
42613db7 59{
9607e6b6 60 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 61 int ret;
42613db7 62
05c914fe 63 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 64 if (ret)
65 return ret;
42613db7 66
9bc383de 67 if (type == NL80211_IFTYPE_AP_VLAN &&
49ddf8e6 68 params && params->use_4addr == 0) {
a9b3cd7f 69 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
49ddf8e6
JB		 70 ieee80211_check_fast_rx_iface(sdata);
71 } else if (type == NL80211_IFTYPE_STATION &&
72 params && params->use_4addr >= 0) {
9bc383de 73 sdata->u.mgd.use_4addr = params->use_4addr;
49ddf8e6 74 }
9bc383de 75
85416a4f
CL		 76 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
77 struct ieee80211_local *local = sdata->local;
78
79 if (ieee80211_sdata_running(sdata)) {
31eba5bc
FF		 80 u32 mask = MONITOR_FLAG_COOK_FRAMES |
81 MONITOR_FLAG_ACTIVE;
82
85416a4f 83 /*
31eba5bc
FF		 84 * Prohibit MONITOR_FLAG_COOK_FRAMES and
85 * MONITOR_FLAG_ACTIVE to be changed while the
86 * interface is up.
85416a4f
CL		 87 * Else we would need to add a lot of cruft
88 * to update everything:
89 * cooked_mntrs, monitor and all fif_* counters
90 * reconfigure hardware
91 */
31eba5bc 92 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
85416a4f
CL		 93 return -EBUSY;
94
95 ieee80211_adjust_monitor_flags(sdata, -1);
96 sdata->u.mntr_flags = *flags;
97 ieee80211_adjust_monitor_flags(sdata, 1);
98
99 ieee80211_configure_filter(local);
100 } else {
101 /*
102 * Because the interface is down, ieee80211_do_stop
103 * and ieee80211_do_open take care of "everything"
104 * mentioned in the comment above.
105 */
106 sdata->u.mntr_flags = *flags;
107 }
108 }
f7917af9 109
42613db7
JB		 110 return 0;
111}
112
f142c6b9
JB		 113static int ieee80211_start_p2p_device(struct wiphy *wiphy,
114 struct wireless_dev *wdev)
115{
b6a55015
LC		 116 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
117 int ret;
118
119 mutex_lock(&sdata->local->chanctx_mtx);
120 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
121 mutex_unlock(&sdata->local->chanctx_mtx);
122 if (ret < 0)
123 return ret;
124
f142c6b9
JB		 125 return ieee80211_do_open(wdev, true);
126}
127
128static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
129 struct wireless_dev *wdev)
130{
131 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
132}
133
b53be792
SW		 134static int ieee80211_set_noack_map(struct wiphy *wiphy,
135 struct net_device *dev,
136 u16 noack_map)
137{
138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
139
140 sdata->noack_map = noack_map;
17c18bf8
JB		 141
142 ieee80211_check_fast_xmit_iface(sdata);
143
b53be792
SW		 144 return 0;
145}
146
e8cbb4cb 147static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 148 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 149 struct key_params *params)
150{
26a58456 151 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2475b1cc 152 struct ieee80211_local *local = sdata->local;
e8cbb4cb 153 struct sta_info *sta = NULL;
2475b1cc 154 const struct ieee80211_cipher_scheme *cs = NULL;
db4d1169 155 struct ieee80211_key *key;
3b96766f 156 int err;
e8cbb4cb 157
26a58456 158 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 159 return -ENETDOWN;
160
97359d12 161 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 162 switch (params->cipher) {
163 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 164 case WLAN_CIPHER_SUITE_TKIP:
97359d12 165 case WLAN_CIPHER_SUITE_WEP104:
2475b1cc 166 if (IS_ERR(local->wep_tx_tfm))
97359d12 167 return -EINVAL;
3cfcf6ac 168 break;
2475b1cc 169 case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db 170 case WLAN_CIPHER_SUITE_CCMP_256:
2475b1cc 171 case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2 172 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
8ade538b
JM		 173 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
174 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2475b1cc 175 case WLAN_CIPHER_SUITE_GCMP:
00b9cfa3 176 case WLAN_CIPHER_SUITE_GCMP_256:
2475b1cc 177 break;
e8cbb4cb 178 default:
2475b1cc 179 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
97359d12 180 break;
e8cbb4cb
JB		 181 }
182
97359d12 183 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
2475b1cc
MS		 184 params->key, params->seq_len, params->seq,
185 cs);
1ac62ba7
BH		 186 if (IS_ERR(key))
187 return PTR_ERR(key);
db4d1169 188
e31b8213
JB		 189 if (pairwise)
190 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
191
2475b1cc 192 mutex_lock(&local->sta_mtx);
3b96766f 193
e8cbb4cb 194 if (mac_addr) {
ff973af7
TP		 195 if (ieee80211_vif_is_mesh(&sdata->vif))
196 sta = sta_info_get(sdata, mac_addr);
197 else
198 sta = sta_info_get_bss(sdata, mac_addr);
1626e0fa
JB		 199 /*
200 * The ASSOC test makes sure the driver is ready to
201 * receive the key. When wpa_supplicant has roamed
202 * using FT, it attempts to set the key before
203 * association has completed, this rejects that attempt
d070f913 204 * so it will set the key again after association.
1626e0fa
JB		 205 *
206 * TODO: accept the key if we have a station entry and
207 * add it to the device after the station.
208 */
209 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
79cf2dfa 210 ieee80211_key_free_unused(key);
3b96766f
JB		 211 err = -ENOENT;
212 goto out_unlock;
db4d1169 213 }
e8cbb4cb
JB		 214 }
215
e548c49e
JB		 216 switch (sdata->vif.type) {
217 case NL80211_IFTYPE_STATION:
218 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
219 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
220 break;
221 case NL80211_IFTYPE_AP:
222 case NL80211_IFTYPE_AP_VLAN:
223 /* Keys without a station are used for TX only */
224 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
225 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
226 break;
227 case NL80211_IFTYPE_ADHOC:
228 /* no MFP (yet) */
229 break;
230 case NL80211_IFTYPE_MESH_POINT:
231#ifdef CONFIG_MAC80211_MESH
232 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
233 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
234 break;
235#endif
236 case NL80211_IFTYPE_WDS:
237 case NL80211_IFTYPE_MONITOR:
238 case NL80211_IFTYPE_P2P_DEVICE:
239 case NL80211_IFTYPE_UNSPECIFIED:
240 case NUM_NL80211_IFTYPES:
241 case NL80211_IFTYPE_P2P_CLIENT:
242 case NL80211_IFTYPE_P2P_GO:
6e0bd6c3 243 case NL80211_IFTYPE_OCB:
e548c49e
JB		 244 /* shouldn't happen */
245 WARN_ON_ONCE(1);
246 break;
247 }
248
2475b1cc
MS		 249 if (sta)
250 sta->cipher_scheme = cs;
251
3ffc2a90 252 err = ieee80211_key_link(key, sdata, sta);
db4d1169 253
3b96766f 254 out_unlock:
2475b1cc 255 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 256
257 return err;
e8cbb4cb
JB		 258}
259
260static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 261 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 262{
5c0c3641
JB		 263 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
264 struct ieee80211_local *local = sdata->local;
e8cbb4cb 265 struct sta_info *sta;
5c0c3641 266 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 267 int ret;
268
5c0c3641
JB		 269 mutex_lock(&local->sta_mtx);
270 mutex_lock(&local->key_mtx);
3b96766f 271
e8cbb4cb 272 if (mac_addr) {
3b96766f
JB		 273 ret = -ENOENT;
274
0e5ded5a 275 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 276 if (!sta)
3b96766f 277 goto out_unlock;
e8cbb4cb 278
5c0c3641 279 if (pairwise)
2475b1cc 280 key = key_mtx_dereference(local, sta->ptk[key_idx]);
5c0c3641 281 else
40b275b6 282 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 283 } else
40b275b6 284 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 285
5c0c3641 286 if (!key) {
3b96766f
JB		 287 ret = -ENOENT;
288 goto out_unlock;
289 }
e8cbb4cb 290
3b8d9c29 291 ieee80211_key_free(key, true);
e8cbb4cb 292
3b96766f
JB		 293 ret = 0;
294 out_unlock:
5c0c3641
JB		 295 mutex_unlock(&local->key_mtx);
296 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 297
298 return ret;
e8cbb4cb
JB		 299}
300
62da92fb 301static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 302 u8 key_idx, bool pairwise, const u8 *mac_addr,
303 void *cookie,
62da92fb
JB		 304 void (*callback)(void *cookie,
305 struct key_params *params))
306{
14db74bc 307 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 308 struct sta_info *sta = NULL;
309 u8 seq[6] = {0};
310 struct key_params params;
e31b8213 311 struct ieee80211_key *key = NULL;
aba83a0b 312 u64 pn64;
62da92fb
JB		 313 u32 iv32;
314 u16 iv16;
315 int err = -ENOENT;
9352c19f 316 struct ieee80211_key_seq kseq = {};
62da92fb 317
14db74bc
JB		 318 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
319
3b96766f
JB		 320 rcu_read_lock();
321
62da92fb 322 if (mac_addr) {
0e5ded5a 323 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 324 if (!sta)
325 goto out;
326
354e159d 327 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
2475b1cc 328 key = rcu_dereference(sta->ptk[key_idx]);
31f1f4ec
MS		 329 else if (!pairwise &&
330 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
a3836e02 331 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 332 } else
a3836e02 333 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 334
335 if (!key)
336 goto out;
337
338 memset(&params, 0, sizeof(params));
339
97359d12 340 params.cipher = key->conf.cipher;
62da92fb 341
97359d12
JB		 342 switch (key->conf.cipher) {
343 case WLAN_CIPHER_SUITE_TKIP:
f8079d43
EP		 344 pn64 = atomic64_read(&key->conf.tx_pn);
345 iv32 = TKIP_PN_TO_IV32(pn64);
346 iv16 = TKIP_PN_TO_IV16(pn64);
62da92fb 347
9352c19f
JB		 348 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
349 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
350 drv_get_key_seq(sdata->local, key, &kseq);
351 iv32 = kseq.tkip.iv32;
352 iv16 = kseq.tkip.iv16;
353 }
62da92fb
JB		 354
355 seq[0] = iv16 & 0xff;
356 seq[1] = (iv16 >> 8) & 0xff;
357 seq[2] = iv32 & 0xff;
358 seq[3] = (iv32 >> 8) & 0xff;
359 seq[4] = (iv32 >> 16) & 0xff;
360 seq[5] = (iv32 >> 24) & 0xff;
361 params.seq = seq;
362 params.seq_len = 6;
363 break;
97359d12 364 case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db 365 case WLAN_CIPHER_SUITE_CCMP_256:
97359d12 366 case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2 367 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
db388a56
JB		 368 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
369 offsetof(typeof(kseq), aes_cmac));
8ade538b
JM		 370 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
371 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
db388a56
JB		 372 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
373 offsetof(typeof(kseq), aes_gmac));
00b9cfa3
JM		 374 case WLAN_CIPHER_SUITE_GCMP:
375 case WLAN_CIPHER_SUITE_GCMP_256:
db388a56
JB		 376 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
377 offsetof(typeof(kseq), gcmp));
378
9352c19f
JB		 379 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
380 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
381 drv_get_key_seq(sdata->local, key, &kseq);
db388a56 382 memcpy(seq, kseq.ccmp.pn, 6);
9352c19f 383 } else {
db388a56 384 pn64 = atomic64_read(&key->conf.tx_pn);
9352c19f
JB		 385 seq[0] = pn64;
386 seq[1] = pn64 >> 8;
387 seq[2] = pn64 >> 16;
388 seq[3] = pn64 >> 24;
389 seq[4] = pn64 >> 32;
390 seq[5] = pn64 >> 40;
391 }
00b9cfa3
JM		 392 params.seq = seq;
393 params.seq_len = 6;
394 break;
a31cf1c6
JB		 395 default:
396 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
397 break;
398 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
399 break;
400 drv_get_key_seq(sdata->local, key, &kseq);
401 params.seq = kseq.hw.seq;
402 params.seq_len = kseq.hw.seq_len;
403 break;
62da92fb
JB		 404 }
405
406 params.key = key->conf.key;
407 params.key_len = key->conf.keylen;
408
409 callback(cookie, &params);
410 err = 0;
411
412 out:
3b96766f 413 rcu_read_unlock();
62da92fb
JB		 414 return err;
415}
416
e8cbb4cb
JB		 417static int ieee80211_config_default_key(struct wiphy *wiphy,
418 struct net_device *dev,
dbd2fd65
JB		 419 u8 key_idx, bool uni,
420 bool multi)
e8cbb4cb 421{
ad0e2b5a 422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 423
f7e0104c 424 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 425
426 return 0;
427}
428
3cfcf6ac
JM		 429static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
430 struct net_device *dev,
431 u8 key_idx)
432{
66c52421 433 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 434
3cfcf6ac
JM		 435 ieee80211_set_default_mgmt_key(sdata, key_idx);
436
3cfcf6ac
JM		 437 return 0;
438}
439
6b62bf32
TP		 440void sta_set_rate_info_tx(struct sta_info *sta,
441 const struct ieee80211_tx_rate *rate,
442 struct rate_info *rinfo)
443{
444 rinfo->flags = 0;
8bc83c24 445 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 446 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 447 rinfo->mcs = rate->idx;
448 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
449 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
450 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
451 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
452 } else {
453 struct ieee80211_supported_band *sband;
2103dec1
SW		 454 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
455 u16 brate;
456
8bc83c24
JB		 457 sband = sta->local->hw.wiphy->bands[
458 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 459 brate = sband->bitrates[rate->idx].bitrate;
460 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
8bc83c24 461 }
6b62bf32 462 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
b51f3bee
JB		 463 rinfo->bw = RATE_INFO_BW_40;
464 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
465 rinfo->bw = RATE_INFO_BW_80;
466 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
467 rinfo->bw = RATE_INFO_BW_160;
468 else
469 rinfo->bw = RATE_INFO_BW_20;
6b62bf32
TP		 470 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
471 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 472}
473
c5dd9c2b 474static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 475 int idx, u8 *mac, struct station_info *sinfo)
c5dd9c2b 476{
3b53fde8 477 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 478 struct ieee80211_local *local = sdata->local;
c5dd9c2b 479 struct sta_info *sta;
d0709a65
JB		 480 int ret = -ENOENT;
481
66572cfc 482 mutex_lock(&local->sta_mtx);
c5dd9c2b 483
3b53fde8 484 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 485 if (sta) {
486 ret = 0;
17741cdc 487 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 488 sta_set_sinfo(sta, sinfo);
489 }
c5dd9c2b 490
66572cfc 491 mutex_unlock(&local->sta_mtx);
c5dd9c2b 492
d0709a65 493 return ret;
c5dd9c2b
LCC		 494}
495
1289723e
HS		 496static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
497 int idx, struct survey_info *survey)
498{
499 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
500
1289723e
HS		 501 return drv_get_survey(local, idx, survey);
502}
503
7bbdd2d9 504static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 505 const u8 *mac, struct station_info *sinfo)
7bbdd2d9 506{
abe60632 507 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 508 struct ieee80211_local *local = sdata->local;
7bbdd2d9 509 struct sta_info *sta;
d0709a65 510 int ret = -ENOENT;
7bbdd2d9 511
66572cfc 512 mutex_lock(&local->sta_mtx);
7bbdd2d9 513
0e5ded5a 514 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 515 if (sta) {
516 ret = 0;
517 sta_set_sinfo(sta, sinfo);
518 }
519
66572cfc 520 mutex_unlock(&local->sta_mtx);
d0709a65
JB		 521
522 return ret;
7bbdd2d9
JB		 523}
524
55de908a 525static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
683b6d3b 526 struct cfg80211_chan_def *chandef)
3d9e6e12
JB		 527{
528 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a
JB		 529 struct ieee80211_sub_if_data *sdata;
530 int ret = 0;
3d9e6e12 531
4bf88530 532 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
55de908a 533 return 0;
3d9e6e12 534
34a3740d 535 mutex_lock(&local->mtx);
55de908a
JB		 536 mutex_lock(&local->iflist_mtx);
537 if (local->use_chanctx) {
538 sdata = rcu_dereference_protected(
539 local->monitor_sdata,
540 lockdep_is_held(&local->iflist_mtx));
541 if (sdata) {
542 ieee80211_vif_release_channel(sdata);
4bf88530 543 ret = ieee80211_vif_use_channel(sdata, chandef,
55de908a
JB		 544 IEEE80211_CHANCTX_EXCLUSIVE);
545 }
546 } else if (local->open_count == local->monitors) {
675a0b04 547 local->_oper_chandef = *chandef;
55de908a
JB		 548 ieee80211_hw_config(local, 0);
549 }
3d9e6e12 550
4bf88530
JB		 551 if (ret == 0)
552 local->monitor_chandef = *chandef;
55de908a 553 mutex_unlock(&local->iflist_mtx);
34a3740d 554 mutex_unlock(&local->mtx);
3d9e6e12 555
55de908a 556 return ret;
e8c9bd5b
JB		 557}
558
02945821 559static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 560 const u8 *resp, size_t resp_len,
561 const struct ieee80211_csa_settings *csa)
02945821 562{
aa7a0080 563 struct probe_resp *new, *old;
02945821
AN		 564
565 if (!resp || !resp_len)
aba4e6ff 566 return 1;
02945821 567
7ca133bc 568 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
02945821 569
aa7a0080 570 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
02945821
AN		 571 if (!new)
572 return -ENOMEM;
573
aa7a0080
ES		 574 new->len = resp_len;
575 memcpy(new->data, resp, resp_len);
02945821 576
af296bdb
MK		 577 if (csa)
578 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
579 csa->n_counter_offsets_presp *
580 sizeof(new->csa_counter_offsets[0]));
581
02945821 582 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
aa7a0080
ES		 583 if (old)
584 kfree_rcu(old, rcu_head);
02945821
AN		 585
586 return 0;
587}
588
0ae07968 589static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 590 struct cfg80211_beacon_data *params,
591 const struct ieee80211_csa_settings *csa)
5dfdaf58
JB		 592{
593 struct beacon_data *new, *old;
594 int new_head_len, new_tail_len;
8860020e
JB		 595 int size, err;
596 u32 changed = BSS_CHANGED_BEACON;
5dfdaf58 597
7ca133bc
SW		 598 old = sdata_dereference(sdata->u.ap.beacon, sdata);
599
5dfdaf58 600
5dfdaf58
JB		 601 /* Need to have a beacon head if we don't have one yet */
602 if (!params->head && !old)
8860020e 603 return -EINVAL;
5dfdaf58
JB		 604
605 /* new or old head? */
606 if (params->head)
607 new_head_len = params->head_len;
608 else
609 new_head_len = old->head_len;
610
611 /* new or old tail? */
612 if (params->tail || !old)
613 /* params->tail_len will be zero for !params->tail */
614 new_tail_len = params->tail_len;
615 else
616 new_tail_len = old->tail_len;
617
618 size = sizeof(*new) + new_head_len + new_tail_len;
619
620 new = kzalloc(size, GFP_KERNEL);
621 if (!new)
622 return -ENOMEM;
623
624 /* start filling the new info now */
625
5dfdaf58
JB		 626 /*
627 * pointers go into the block we allocated,
628 * memory is | beacon_data | head | tail |
629 */
630 new->head = ((u8 *) new) + sizeof(*new);
631 new->tail = new->head + new_head_len;
632 new->head_len = new_head_len;
633 new->tail_len = new_tail_len;
634
af296bdb
MK		 635 if (csa) {
636 new->csa_current_counter = csa->count;
637 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
638 csa->n_counter_offsets_beacon *
639 sizeof(new->csa_counter_offsets[0]));
640 }
641
5dfdaf58
JB		 642 /* copy in head */
643 if (params->head)
644 memcpy(new->head, params->head, new_head_len);
645 else
646 memcpy(new->head, old->head, new_head_len);
647
648 /* copy in optional tail */
649 if (params->tail)
650 memcpy(new->tail, params->tail, new_tail_len);
651 else
652 if (old)
653 memcpy(new->tail, old->tail, new_tail_len);
654
02945821 655 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
af296bdb 656 params->probe_resp_len, csa);
8860020e
JB		 657 if (err < 0)
658 return err;
659 if (err == 0)
02945821
AN		 660 changed |= BSS_CHANGED_AP_PROBE_RESP;
661
8860020e
JB		 662 rcu_assign_pointer(sdata->u.ap.beacon, new);
663
664 if (old)
665 kfree_rcu(old, rcu_head);
7827493b 666
8860020e 667 return changed;
5dfdaf58
JB		 668}
669
8860020e
JB		 670static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
671 struct cfg80211_ap_settings *params)
5dfdaf58 672{
8860020e 673 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
34a3740d 674 struct ieee80211_local *local = sdata->local;
5dfdaf58 675 struct beacon_data *old;
665c93a9 676 struct ieee80211_sub_if_data *vlan;
8860020e
JB		 677 u32 changed = BSS_CHANGED_BEACON_INT |
678 BSS_CHANGED_BEACON_ENABLED |
679 BSS_CHANGED_BEACON |
339afbf4 680 BSS_CHANGED_SSID |
4bcc56bb
JB		 681 BSS_CHANGED_P2P_PS |
682 BSS_CHANGED_TXPOWER;
8860020e 683 int err;
14db74bc 684
7ca133bc 685 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 686 if (old)
687 return -EALREADY;
688
f6993174
EP		 689 switch (params->smps_mode) {
690 case NL80211_SMPS_OFF:
691 sdata->smps_mode = IEEE80211_SMPS_OFF;
692 break;
693 case NL80211_SMPS_STATIC:
694 sdata->smps_mode = IEEE80211_SMPS_STATIC;
695 break;
696 case NL80211_SMPS_DYNAMIC:
697 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
698 break;
699 default:
700 return -EINVAL;
701 }
04ecd257
JB		 702 sdata->needed_rx_chains = sdata->local->rx_chains;
703
34a3740d 704 mutex_lock(&local->mtx);
4bf88530 705 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 706 IEEE80211_CHANCTX_SHARED);
4e141dad
MK		 707 if (!err)
708 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
34a3740d 709 mutex_unlock(&local->mtx);
aa430da4
JB		 710 if (err)
711 return err;
712
665c93a9
JB		 713 /*
714 * Apply control port protocol, this allows us to
715 * not encrypt dynamic WEP control frames.
716 */
717 sdata->control_port_protocol = params->crypto.control_port_ethertype;
718 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
2475b1cc
MS		 719 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
720 &params->crypto,
721 sdata->vif.type);
722
665c93a9
JB		 723 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
724 vlan->control_port_protocol =
725 params->crypto.control_port_ethertype;
726 vlan->control_port_no_encrypt =
727 params->crypto.control_port_no_encrypt;
2475b1cc
MS		 728 vlan->encrypt_headroom =
729 ieee80211_cs_headroom(sdata->local,
730 &params->crypto,
731 vlan->vif.type);
665c93a9
JB		 732 }
733
8860020e
JB		 734 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
735 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 736 sdata->vif.bss_conf.enable_beacon = true;
52cfa1d6 737 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
8860020e
JB		 738
739 sdata->vif.bss_conf.ssid_len = params->ssid_len;
740 if (params->ssid_len)
741 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
742 params->ssid_len);
743 sdata->vif.bss_conf.hidden_ssid =
744 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
745
67baf663
JD		 746 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
747 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
748 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
749 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
750 if (params->p2p_opp_ps)
751 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
752 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 753
af296bdb 754 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
0297ea17
EG		 755 if (err < 0) {
756 ieee80211_vif_release_channel(sdata);
8860020e 757 return err;
0297ea17 758 }
8860020e
JB		 759 changed |= err;
760
1041638f
JB		 761 err = drv_start_ap(sdata->local, sdata);
762 if (err) {
7ca133bc
SW		 763 old = sdata_dereference(sdata->u.ap.beacon, sdata);
764
1041638f
JB		 765 if (old)
766 kfree_rcu(old, rcu_head);
767 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
0297ea17 768 ieee80211_vif_release_channel(sdata);
1041638f
JB		 769 return err;
770 }
771
057d5f4b 772 ieee80211_recalc_dtim(local, sdata);
8860020e
JB		 773 ieee80211_bss_info_change_notify(sdata, changed);
774
3edaf3e6
JB		 775 netif_carrier_on(dev);
776 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
777 netif_carrier_on(vlan->dev);
778
665c93a9 779 return 0;
5dfdaf58
JB		 780}
781
8860020e
JB		 782static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
783 struct cfg80211_beacon_data *params)
5dfdaf58 784{
14db74bc 785 struct ieee80211_sub_if_data *sdata;
5dfdaf58 786 struct beacon_data *old;
8860020e 787 int err;
5dfdaf58 788
14db74bc 789 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
dbd72850 790 sdata_assert_lock(sdata);
14db74bc 791
73da7d5b
SW		 792 /* don't allow changing the beacon while CSA is in place - offset
793 * of channel switch counter may change
794 */
795 if (sdata->vif.csa_active)
796 return -EBUSY;
797
7ca133bc 798 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 799 if (!old)
800 return -ENOENT;
801
af296bdb 802 err = ieee80211_assign_beacon(sdata, params, NULL);
8860020e
JB		 803 if (err < 0)
804 return err;
805 ieee80211_bss_info_change_notify(sdata, err);
806 return 0;
5dfdaf58
JB		 807}
808
8860020e 809static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 810{
7b20b8e8
JB		 811 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
812 struct ieee80211_sub_if_data *vlan;
813 struct ieee80211_local *local = sdata->local;
814 struct beacon_data *old_beacon;
815 struct probe_resp *old_probe_resp;
d2859df5 816 struct cfg80211_chan_def chandef;
14db74bc 817
dbd72850
MK		 818 sdata_assert_lock(sdata);
819
7ca133bc 820 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 821 if (!old_beacon)
5dfdaf58 822 return -ENOENT;
7ca133bc 823 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 824
73da7d5b 825 /* abort any running channel switch */
59af6928 826 mutex_lock(&local->mtx);
73da7d5b 827 sdata->vif.csa_active = false;
a46992b4
LC		 828 if (sdata->csa_block_tx) {
829 ieee80211_wake_vif_queues(local, sdata,
830 IEEE80211_QUEUE_STOP_REASON_CSA);
831 sdata->csa_block_tx = false;
832 }
833
59af6928
MK		 834 mutex_unlock(&local->mtx);
835
1f3b8a2b
SW		 836 kfree(sdata->u.ap.next_beacon);
837 sdata->u.ap.next_beacon = NULL;
838
7b20b8e8 839 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 840 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
841 netif_carrier_off(vlan->dev);
842 netif_carrier_off(dev);
843
7b20b8e8 844 /* remove beacon and probe response */
a9b3cd7f 845 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 846 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
847 kfree_rcu(old_beacon, rcu_head);
848 if (old_probe_resp)
849 kfree_rcu(old_probe_resp, rcu_head);
8ffcc704 850 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
8860020e 851
e716251d 852 __sta_info_flush(sdata, true);
7907c7d3 853 ieee80211_free_keys(sdata, true);
75de9113 854
d6a83228 855 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 856 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 857 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 858 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 859
a6b368f6 860 if (sdata->wdev.cac_started) {
d2859df5 861 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 862 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 863 cfg80211_cac_event(sdata->dev, &chandef,
864 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 865 GFP_KERNEL);
866 }
867
1041638f
JB		 868 drv_stop_ap(sdata->local, sdata);
869
7b20b8e8
JB		 870 /* free all potentially still buffered bcast frames */
871 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
872 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
873
34a3740d 874 mutex_lock(&local->mtx);
4e141dad 875 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a 876 ieee80211_vif_release_channel(sdata);
34a3740d 877 mutex_unlock(&local->mtx);
55de908a 878
2d0ddec5 879 return 0;
5dfdaf58
JB		 880}
881
4fd6931e
JB		 882/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
883struct iapp_layer2_update {
884 u8 da[ETH_ALEN]; /* broadcast */
885 u8 sa[ETH_ALEN]; /* STA addr */
886 __be16 len; /* 6 */
887 u8 dsap; /* 0 */
888 u8 ssap; /* 0 */
889 u8 control;
890 u8 xid_info[3];
bc10502d 891} __packed;
4fd6931e
JB		 892
893static void ieee80211_send_layer2_update(struct sta_info *sta)
894{
895 struct iapp_layer2_update *msg;
896 struct sk_buff *skb;
897
898 /* Send Level 2 Update Frame to update forwarding tables in layer 2
899 * bridge devices */
900
901 skb = dev_alloc_skb(sizeof(*msg));
902 if (!skb)
903 return;
904 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
905
906 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
907 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
908
e83e6541 909 eth_broadcast_addr(msg->da);
17741cdc 910 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 911 msg->len = htons(6);
912 msg->dsap = 0;
913 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
914 msg->control = 0xaf; /* XID response lsb.1111F101.
915 * F=0 (no poll command; unsolicited frame) */
916 msg->xid_info[0] = 0x81; /* XID format identifier */
917 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
918 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
919
d0709a65
JB		 920 skb->dev = sta->sdata->dev;
921 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 922 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 923 netif_rx_ni(skb);
4fd6931e
JB		 924}
925
d582cffb
JB		 926static int sta_apply_auth_flags(struct ieee80211_local *local,
927 struct sta_info *sta,
928 u32 mask, u32 set)
929{
930 int ret;
931
932 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
933 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
934 !test_sta_flag(sta, WLAN_STA_AUTH)) {
935 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
936 if (ret)
937 return ret;
938 }
939
940 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
941 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
942 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
c23e31cf
MP		 943 /*
944 * When peer becomes associated, init rate control as
945 * well. Some drivers require rate control initialized
946 * before drv_sta_state() is called.
947 */
44674d9c 948 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
c23e31cf
MP		 949 rate_control_rate_init(sta);
950
d582cffb
JB		 951 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
952 if (ret)
953 return ret;
954 }
955
956 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
957 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
958 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
959 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
960 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
961 else
962 ret = 0;
963 if (ret)
964 return ret;
965 }
966
967 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
968 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
969 test_sta_flag(sta, WLAN_STA_ASSOC)) {
970 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
971 if (ret)
972 return ret;
973 }
974
975 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
976 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
977 test_sta_flag(sta, WLAN_STA_AUTH)) {
978 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
979 if (ret)
980 return ret;
981 }
982
983 return 0;
984}
985
13657702
JB		 986static void sta_apply_mesh_params(struct ieee80211_local *local,
987 struct sta_info *sta,
988 struct station_parameters *params)
989{
990#ifdef CONFIG_MAC80211_MESH
991 struct ieee80211_sub_if_data *sdata = sta->sdata;
992 u32 changed = 0;
993
994 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
995 switch (params->plink_state) {
996 case NL80211_PLINK_ESTAB:
997 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
998 changed = mesh_plink_inc_estab_count(sdata);
999 sta->mesh->plink_state = params->plink_state;
1000
1001 ieee80211_mps_sta_status_update(sta);
1002 changed |= ieee80211_mps_set_sta_local_pm(sta,
1003 sdata->u.mesh.mshcfg.power_mode);
1004 break;
1005 case NL80211_PLINK_LISTEN:
1006 case NL80211_PLINK_BLOCKED:
1007 case NL80211_PLINK_OPN_SNT:
1008 case NL80211_PLINK_OPN_RCVD:
1009 case NL80211_PLINK_CNF_RCVD:
1010 case NL80211_PLINK_HOLDING:
1011 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1012 changed = mesh_plink_dec_estab_count(sdata);
1013 sta->mesh->plink_state = params->plink_state;
1014
1015 ieee80211_mps_sta_status_update(sta);
1016 changed |= ieee80211_mps_set_sta_local_pm(sta,
1017 NL80211_MESH_POWER_UNKNOWN);
1018 break;
1019 default:
1020 /* nothing */
1021 break;
1022 }
1023 }
1024
1025 switch (params->plink_action) {
1026 case NL80211_PLINK_ACTION_NO_ACTION:
1027 /* nothing */
1028 break;
1029 case NL80211_PLINK_ACTION_OPEN:
1030 changed |= mesh_plink_open(sta);
1031 break;
1032 case NL80211_PLINK_ACTION_BLOCK:
1033 changed |= mesh_plink_block(sta);
1034 break;
1035 }
1036
1037 if (params->local_pm)
1038 changed |= ieee80211_mps_set_sta_local_pm(sta,
1039 params->local_pm);
1040
1041 ieee80211_mbss_info_change_notify(sdata, changed);
1042#endif
1043}
1044
d9a7ddb0
JB		 1045static int sta_apply_parameters(struct ieee80211_local *local,
1046 struct sta_info *sta,
1047 struct station_parameters *params)
4fd6931e 1048{
d9a7ddb0 1049 int ret = 0;
8318d78a 1050 struct ieee80211_supported_band *sband;
d0709a65 1051 struct ieee80211_sub_if_data *sdata = sta->sdata;
57fbcce3 1052 enum nl80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1053 u32 mask, set;
4fd6931e 1054
55de908a 1055 sband = local->hw.wiphy->bands[band];
ae5eb026 1056
eccb8e8f
JB		 1057 mask = params->sta_flags_mask;
1058 set = params->sta_flags_set;
73651ee6 1059
d582cffb
JB		 1060 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1061 /*
1062 * In mesh mode, ASSOCIATED isn't part of the nl80211
1063 * API but must follow AUTHENTICATED for driver state.
1064 */
1065 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1066 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1067 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1068 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1069 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1070 /*
1071 * TDLS -- everything follows authorized, but
1072 * only becoming authorized is possible, not
1073 * going back
1074 */
1075 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1076 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1077 BIT(NL80211_STA_FLAG_ASSOCIATED);
1078 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1079 BIT(NL80211_STA_FLAG_ASSOCIATED);
1080 }
eccb8e8f 1081 }
4fd6931e 1082
2c44be81
JB		 1083 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1084 local->hw.queues >= IEEE80211_NUM_ACS)
1085 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1086
44674d9c
AB		 1087 /* auth flags will be set later for TDLS,
1088 * and for unassociated stations that move to assocaited */
1089 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1090 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1091 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
68885a54
AN		 1092 ret = sta_apply_auth_flags(local, sta, mask, set);
1093 if (ret)
1094 return ret;
1095 }
d9a7ddb0 1096
eccb8e8f 1097 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1098 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1099 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1100 else
1101 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1102 }
4fd6931e 1103
eccb8e8f 1104 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
93f0490e 1105 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
eccb8e8f 1106 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1107 set_sta_flag(sta, WLAN_STA_MFP);
1108 else
1109 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1110 }
b39c48fa 1111
07ba55d7 1112 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1113 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1114 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1115 else
1116 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1117 }
4fd6931e 1118
9041c1fa
AN		 1119 /* mark TDLS channel switch support, if the AP allows it */
1120 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1121 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1122 params->ext_capab_len >= 4 &&
1123 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1124 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1125
b98fb44f 1126 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
82c0cc90 1127 !sdata->u.mgd.tdls_wider_bw_prohibited &&
b98fb44f
AN		 1128 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1129 params->ext_capab_len >= 8 &&
1130 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1131 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1132
3b9ce80c
JB		 1133 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1134 sta->sta.uapsd_queues = params->uapsd_queues;
1135 sta->sta.max_sp = params->max_sp;
1136 }
9533b4ac 1137
506bcfa8
EG		 1138 /* The sender might not have sent the last bit, consider it to be 0 */
1139 if (params->ext_capab_len >= 8) {
1140 u8 val = (params->ext_capab[7] &
1141 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1142
1143 /* we did get all the bits, take the MSB as well */
1144 if (params->ext_capab_len >= 9) {
1145 u8 val_msb = params->ext_capab[8] &
1146 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1147 val_msb <<= 1;
1148 val |= val_msb;
1149 }
1150
1151 switch (val) {
1152 case 1:
1153 sta->sta.max_amsdu_subframes = 32;
1154 break;
1155 case 2:
1156 sta->sta.max_amsdu_subframes = 16;
1157 break;
1158 case 3:
1159 sta->sta.max_amsdu_subframes = 8;
1160 break;
1161 default:
1162 sta->sta.max_amsdu_subframes = 0;
1163 }
1164 }
1165
51b50fbe
JB		 1166 /*
1167 * cfg80211 validates this (1-2007) and allows setting the AID
1168 * only when creating a new station entry
1169 */
1170 if (params->aid)
1171 sta->sta.aid = params->aid;
1172
73651ee6 1173 /*
ba23d206
JB		 1174 * Some of the following updates would be racy if called on an
1175 * existing station, via ieee80211_change_station(). However,
1176 * all such changes are rejected by cfg80211 except for updates
1177 * changing the supported rates on an existing but not yet used
1178 * TDLS peer.
73651ee6
JB		 1179 */
1180
4fd6931e
JB		 1181 if (params->listen_interval >= 0)
1182 sta->listen_interval = params->listen_interval;
1183
1184 if (params->supported_rates) {
2103dec1
SW		 1185 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1186 sband, params->supported_rates,
1187 params->supported_rates_len,
1188 &sta->sta.supp_rates[band]);
4fd6931e 1189 }
c5dd9c2b 1190
d9fe60de 1191 if (params->ht_capa)
ef96a842 1192 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1193 params->ht_capa, sta);
36aedc90 1194
506bcfa8 1195 /* VHT can override some HT caps such as the A-MSDU max length */
f461be3e
MP		 1196 if (params->vht_capa)
1197 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1198 params->vht_capa, sta);
f461be3e 1199
b1bce14a 1200 if (params->opmode_notif_used) {
b1bce14a
MK		 1201 /* returned value is only needed for rc update, but the
1202 * rc isn't initialized here yet, so ignore it
1203 */
1204 __ieee80211_vht_handle_opmode(sdata, sta,
cf1e05c6 1205 params->opmode_notif, band);
b1bce14a
MK		 1206 }
1207
52cfa1d6
AB		 1208 if (params->support_p2p_ps >= 0)
1209 sta->sta.support_p2p_ps = params->support_p2p_ps;
1210
13657702
JB		 1211 if (ieee80211_vif_is_mesh(&sdata->vif))
1212 sta_apply_mesh_params(local, sta, params);
d9a7ddb0 1213
68885a54 1214 /* set the STA state after all sta info from usermode has been set */
44674d9c
AB		 1215 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1216 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
68885a54
AN		 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
44674d9c
AB		 1254 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1255 sta->sta.tdls = true;
4fd6931e 1256
d9a7ddb0
JB		 1257 err = sta_apply_parameters(local, sta, params);
1258 if (err) {
1259 sta_info_free(local, sta);
1260 return err;
1261 }
4fd6931e 1262
d64cf63e 1263 /*
44674d9c
AB		 1264 * for TDLS and for unassociated station, rate control should be
1265 * initialized only when rates are known and station is marked
1266 * authorized/associated
d64cf63e 1267 */
44674d9c
AB		 1268 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1269 test_sta_flag(sta, WLAN_STA_ASSOC))
d64cf63e 1270 rate_control_rate_init(sta);
4fd6931e 1271
b8d476c8
JM		 1272 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1273 sdata->vif.type == NL80211_IFTYPE_AP;
1274
34e89507 1275 err = sta_info_insert_rcu(sta);
73651ee6 1276 if (err) {
73651ee6
JB		 1277 rcu_read_unlock();
1278 return err;
1279 }
1280
b8d476c8 1281 if (layer2_update)
73651ee6
JB		 1282 ieee80211_send_layer2_update(sta);
1283
1284 rcu_read_unlock();
1285
4fd6931e
JB		 1286 return 0;
1287}
1288
1289static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
89c771e5 1290 struct station_del_parameters *params)
4fd6931e 1291{
14db74bc 1292 struct ieee80211_sub_if_data *sdata;
4fd6931e 1293
14db74bc
JB		 1294 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1295
89c771e5
JM		 1296 if (params->mac)
1297 return sta_info_destroy_addr_bss(sdata, params->mac);
4fd6931e 1298
b998e8bb 1299 sta_info_flush(sdata);
4fd6931e
JB		 1300 return 0;
1301}
1302
1303static int ieee80211_change_station(struct wiphy *wiphy,
3b3a0162 1304 struct net_device *dev, const u8 *mac,
4fd6931e
JB		 1305 struct station_parameters *params)
1306{
abe60632 1307 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1308 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1309 struct sta_info *sta;
1310 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1311 enum cfg80211_station_type statype;
35b88623 1312 int err;
4fd6931e 1313
87be1e1e 1314 mutex_lock(&local->sta_mtx);
98dd6a57 1315
0e5ded5a 1316 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1317 if (!sta) {
77ee7c89
JB		 1318 err = -ENOENT;
1319 goto out_err;
98dd6a57 1320 }
4fd6931e 1321
77ee7c89
JB		 1322 switch (sdata->vif.type) {
1323 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1324 if (sdata->u.mesh.user_mpm)
eef941e6 1325 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1326 else
eef941e6 1327 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1328 break;
1329 case NL80211_IFTYPE_ADHOC:
1330 statype = CFG80211_STA_IBSS;
1331 break;
1332 case NL80211_IFTYPE_STATION:
1333 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1334 statype = CFG80211_STA_AP_STA;
1335 break;
1336 }
1337 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1338 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1339 else
1340 statype = CFG80211_STA_TDLS_PEER_SETUP;
1341 break;
1342 case NL80211_IFTYPE_AP:
1343 case NL80211_IFTYPE_AP_VLAN:
44674d9c
AB		 1344 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1345 statype = CFG80211_STA_AP_CLIENT;
1346 else
1347 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
77ee7c89
JB		 1348 break;
1349 default:
1350 err = -EOPNOTSUPP;
1351 goto out_err;
bdd90d5e
JB		 1352 }
1353
77ee7c89
JB		 1354 err = cfg80211_check_station_change(wiphy, params, statype);
1355 if (err)
1356 goto out_err;
1357
d0709a65 1358 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1359 bool prev_4addr = false;
1360 bool new_4addr = false;
1361
4fd6931e
JB		 1362 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1363
9bc383de 1364 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1365 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1366 err = -EBUSY;
1367 goto out_err;
3305443c 1368 }
f14543ee 1369
cf778b00 1370 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c 1371 new_4addr = true;
49ddf8e6 1372 __ieee80211_check_fast_rx_iface(vlansdata);
7e3ed02c
FF		 1373 }
1374
1375 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1376 sta->sdata->u.vlan.sta) {
0c2bef46 1377 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
7e3ed02c 1378 prev_4addr = true;
f14543ee
FF		 1379 }
1380
14db74bc 1381 sta->sdata = vlansdata;
464daaf0 1382 ieee80211_check_fast_xmit(sta);
7e3ed02c
FF		 1383
1384 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1385 prev_4addr != new_4addr) {
1386 if (new_4addr)
1387 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1388 else
1389 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1390 }
1391
4fd6931e
JB		 1392 ieee80211_send_layer2_update(sta);
1393 }
1394
35b88623 1395 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1396 if (err)
1397 goto out_err;
4fd6931e 1398
87be1e1e 1399 mutex_unlock(&local->sta_mtx);
98dd6a57 1400
687da132
EG		 1401 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1402 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1403 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1404 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1405 sta_info_tx_streams(sta) != 1) {
1406 ht_dbg(sta->sdata,
1407 "%pM just authorized and MIMO capable - update SMPS\n",
1408 sta->sta.addr);
1409 ieee80211_send_smps_action(sta->sdata,
1410 sta->sdata->bss->req_smps,
1411 sta->sta.addr,
1412 sta->sdata->vif.bss_conf.bssid);
1413 }
1414
808118cb 1415 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1416 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
4a733ef1 1417 ieee80211_recalc_ps(local);
ab095877
EP		 1418 ieee80211_recalc_ps_vif(sdata);
1419 }
77ee7c89 1420
4fd6931e 1421 return 0;
77ee7c89
JB		 1422out_err:
1423 mutex_unlock(&local->sta_mtx);
1424 return err;
4fd6931e
JB		 1425}
1426
c5dd9c2b
LCC		 1427#ifdef CONFIG_MAC80211_MESH
1428static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1429 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1430{
14db74bc 1431 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1432 struct mesh_path *mpath;
1433 struct sta_info *sta;
c5dd9c2b 1434
14db74bc
JB		 1435 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1436
d0709a65 1437 rcu_read_lock();
abe60632 1438 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1439 if (!sta) {
1440 rcu_read_unlock();
c5dd9c2b 1441 return -ENOENT;
d0709a65 1442 }
c5dd9c2b 1443
ae76eef0
BC		 1444 mpath = mesh_path_add(sdata, dst);
1445 if (IS_ERR(mpath)) {
d0709a65 1446 rcu_read_unlock();
ae76eef0 1447 return PTR_ERR(mpath);
d0709a65 1448 }
c5dd9c2b 1449
c5dd9c2b 1450 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1451
c5dd9c2b
LCC		 1452 rcu_read_unlock();
1453 return 0;
1454}
1455
1456static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1457 const u8 *dst)
c5dd9c2b 1458{
f698d856
JBG		 1459 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1460
c5dd9c2b 1461 if (dst)
bf7cd94d 1462 return mesh_path_del(sdata, dst);
c5dd9c2b 1463
ece1a2e7 1464 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1465 return 0;
1466}
1467
3b3a0162
JB		 1468static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1469 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1470{
14db74bc 1471 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1472 struct mesh_path *mpath;
1473 struct sta_info *sta;
1474
14db74bc
JB		 1475 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1476
d0709a65
JB		 1477 rcu_read_lock();
1478
abe60632 1479 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1480 if (!sta) {
1481 rcu_read_unlock();
c5dd9c2b 1482 return -ENOENT;
d0709a65 1483 }
c5dd9c2b 1484
bf7cd94d 1485 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1486 if (!mpath) {
1487 rcu_read_unlock();
c5dd9c2b
LCC		 1488 return -ENOENT;
1489 }
1490
1491 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1492
c5dd9c2b
LCC		 1493 rcu_read_unlock();
1494 return 0;
1495}
1496
1497static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1498 struct mpath_info *pinfo)
1499{
a3836e02
JB		 1500 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1501
1502 if (next_hop_sta)
1503 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b 1504 else
c84a67a2 1505 eth_zero_addr(next_hop);
c5dd9c2b 1506
7ce8c7a3
LAYS		 1507 memset(pinfo, 0, sizeof(*pinfo));
1508
2bdaf386 1509 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
f5ea9120 1510
c5dd9c2b 1511 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1512 MPATH_INFO_SN |
c5dd9c2b
LCC		 1513 MPATH_INFO_METRIC |
1514 MPATH_INFO_EXPTIME |
1515 MPATH_INFO_DISCOVERY_TIMEOUT |
1516 MPATH_INFO_DISCOVERY_RETRIES |
1517 MPATH_INFO_FLAGS;
1518
1519 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1520 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1521 pinfo->metric = mpath->metric;
1522 if (time_before(jiffies, mpath->exp_time))
1523 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1524 pinfo->discovery_timeout =
1525 jiffies_to_msecs(mpath->discovery_timeout);
1526 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1527 if (mpath->flags & MESH_PATH_ACTIVE)
1528 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1529 if (mpath->flags & MESH_PATH_RESOLVING)
1530 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1531 if (mpath->flags & MESH_PATH_SN_VALID)
1532 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1533 if (mpath->flags & MESH_PATH_FIXED)
1534 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1535 if (mpath->flags & MESH_PATH_RESOLVED)
1536 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1537}
1538
1539static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1540 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1541
1542{
14db74bc 1543 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1544 struct mesh_path *mpath;
1545
14db74bc
JB		 1546 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1547
c5dd9c2b 1548 rcu_read_lock();
bf7cd94d 1549 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1550 if (!mpath) {
1551 rcu_read_unlock();
1552 return -ENOENT;
1553 }
1554 memcpy(dst, mpath->dst, ETH_ALEN);
1555 mpath_set_pinfo(mpath, next_hop, pinfo);
1556 rcu_read_unlock();
1557 return 0;
1558}
1559
1560static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1561 int idx, u8 *dst, u8 *next_hop,
1562 struct mpath_info *pinfo)
c5dd9c2b 1563{
14db74bc 1564 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1565 struct mesh_path *mpath;
1566
14db74bc
JB		 1567 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1568
c5dd9c2b 1569 rcu_read_lock();
bf7cd94d 1570 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1571 if (!mpath) {
1572 rcu_read_unlock();
1573 return -ENOENT;
1574 }
1575 memcpy(dst, mpath->dst, ETH_ALEN);
1576 mpath_set_pinfo(mpath, next_hop, pinfo);
1577 rcu_read_unlock();
1578 return 0;
1579}
93da9cc1 1580
a2db2ed3
HR		 1581static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1582 struct mpath_info *pinfo)
1583{
1584 memset(pinfo, 0, sizeof(*pinfo));
1585 memcpy(mpp, mpath->mpp, ETH_ALEN);
1586
2bdaf386 1587 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
a2db2ed3
HR		 1588}
1589
1590static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1591 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1592
1593{
1594 struct ieee80211_sub_if_data *sdata;
1595 struct mesh_path *mpath;
1596
1597 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1598
1599 rcu_read_lock();
1600 mpath = mpp_path_lookup(sdata, dst);
1601 if (!mpath) {
1602 rcu_read_unlock();
1603 return -ENOENT;
1604 }
1605 memcpy(dst, mpath->dst, ETH_ALEN);
1606 mpp_set_pinfo(mpath, mpp, pinfo);
1607 rcu_read_unlock();
1608 return 0;
1609}
1610
1611static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1612 int idx, u8 *dst, u8 *mpp,
1613 struct mpath_info *pinfo)
1614{
1615 struct ieee80211_sub_if_data *sdata;
1616 struct mesh_path *mpath;
1617
1618 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1619
1620 rcu_read_lock();
1621 mpath = mpp_path_lookup_by_idx(sdata, idx);
1622 if (!mpath) {
1623 rcu_read_unlock();
1624 return -ENOENT;
1625 }
1626 memcpy(dst, mpath->dst, ETH_ALEN);
1627 mpp_set_pinfo(mpath, mpp, pinfo);
1628 rcu_read_unlock();
1629 return 0;
1630}
1631
24bdd9f4 1632static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1633 struct net_device *dev,
1634 struct mesh_config *conf)
1635{
1636 struct ieee80211_sub_if_data *sdata;
1637 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1638
93da9cc1 1639 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1640 return 0;
1641}
1642
1643static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1644{
1645 return (mask >> (parm-1)) & 0x1;
1646}
1647
c80d545d
JC		 1648static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1649 const struct mesh_setup *setup)
1650{
1651 u8 *new_ie;
1652 const u8 *old_ie;
4bb62344
CYY		 1653 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1654 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1655
581a8b0f 1656 /* allocate information elements */
c80d545d 1657 new_ie = NULL;
581a8b0f 1658 old_ie = ifmsh->ie;
c80d545d 1659
581a8b0f
JC		 1660 if (setup->ie_len) {
1661 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1662 GFP_KERNEL);
1663 if (!new_ie)
1664 return -ENOMEM;
1665 }
581a8b0f
JC		 1666 ifmsh->ie_len = setup->ie_len;
1667 ifmsh->ie = new_ie;
1668 kfree(old_ie);
c80d545d
JC		 1669
1670 /* now copy the rest of the setup parameters */
1671 ifmsh->mesh_id_len = setup->mesh_id_len;
1672 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1673 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1674 ifmsh->mesh_pp_id = setup->path_sel_proto;
1675 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1676 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1677 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1678 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1679 if (setup->is_authenticated)
1680 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1681 if (setup->is_secure)
1682 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1683
4bb62344
CYY		 1684 /* mcast rate setting in Mesh Node */
1685 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1686 sizeof(setup->mcast_rate));
ffb3cf30 1687 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1688
9bdbf04d
MP		 1689 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1690 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1691
c80d545d
JC		 1692 return 0;
1693}
1694
24bdd9f4 1695static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1696 struct net_device *dev, u32 mask,
1697 const struct mesh_config *nconf)
93da9cc1 1698{
1699 struct mesh_config *conf;
1700 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1701 struct ieee80211_if_mesh *ifmsh;
1702
93da9cc1 1703 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1704 ifmsh = &sdata->u.mesh;
93da9cc1 1705
93da9cc1 1706 /* Set the config options which we are interested in setting */
1707 conf = &(sdata->u.mesh.mshcfg);
1708 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1709 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1710 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1711 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1712 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1713 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1714 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1715 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1716 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1717 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1718 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1719 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1720 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1721 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1722 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1723 if (ifmsh->user_mpm)
1724 return -EBUSY;
93da9cc1 1725 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1726 }
d299a1f2
JC		 1727 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1728 conf->dot11MeshNbrOffsetMaxNeighbor =
1729 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1730 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1731 conf->dot11MeshHWMPmaxPREQretries =
1732 nconf->dot11MeshHWMPmaxPREQretries;
1733 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1734 conf->path_refresh_time = nconf->path_refresh_time;
1735 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1736 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1737 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1738 conf->dot11MeshHWMPactivePathTimeout =
1739 nconf->dot11MeshHWMPactivePathTimeout;
1740 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1741 conf->dot11MeshHWMPpreqMinInterval =
1742 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1743 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1744 conf->dot11MeshHWMPperrMinInterval =
1745 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1746 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1747 mask))
1748 conf->dot11MeshHWMPnetDiameterTraversalTime =
1749 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1750 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1751 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1752 ieee80211_mesh_root_setup(ifmsh);
1753 }
16dd7267 1754 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1755 /* our current gate announcement implementation rides on root
1756 * announcements, so require this ifmsh to also be a root node
1757 * */
1758 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1759 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1760 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1761 ieee80211_mesh_root_setup(ifmsh);
1762 }
16dd7267
JC		 1763 conf->dot11MeshGateAnnouncementProtocol =
1764 nconf->dot11MeshGateAnnouncementProtocol;
1765 }
a4f606ea 1766 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1767 conf->dot11MeshHWMPRannInterval =
1768 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1769 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1770 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1771 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1772 /* our RSSI threshold implementation is supported only for
1773 * devices that report signal in dBm.
1774 */
30686bf7 1775 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
55335137
AN		 1776 return -ENOTSUPP;
1777 conf->rssi_threshold = nconf->rssi_threshold;
1778 }
70c33eaa
AN		 1779 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1780 conf->ht_opmode = nconf->ht_opmode;
1781 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1782 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1783 }
ac1073a6
CYY		 1784 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1785 conf->dot11MeshHWMPactivePathToRootTimeout =
1786 nconf->dot11MeshHWMPactivePathToRootTimeout;
1787 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1788 conf->dot11MeshHWMProotInterval =
1789 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1790 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1791 conf->dot11MeshHWMPconfirmationInterval =
1792 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1793 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1794 conf->power_mode = nconf->power_mode;
1795 ieee80211_mps_local_status_update(sdata);
1796 }
2b5e1967 1797 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1798 conf->dot11MeshAwakeWindowDuration =
1799 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1800 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1801 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1802 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1803 return 0;
1804}
1805
29cbe68c
JB		 1806static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1807 const struct mesh_config *conf,
1808 const struct mesh_setup *setup)
1809{
1810 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1811 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1812 int err;
29cbe68c 1813
c80d545d
JC		 1814 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1815 err = copy_mesh_setup(ifmsh, setup);
1816 if (err)
1817 return err;
cc1d2806 1818
04ecd257
JB		 1819 /* can mesh use other SMPS modes? */
1820 sdata->smps_mode = IEEE80211_SMPS_OFF;
1821 sdata->needed_rx_chains = sdata->local->rx_chains;
1822
34a3740d 1823 mutex_lock(&sdata->local->mtx);
4bf88530 1824 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1825 IEEE80211_CHANCTX_SHARED);
34a3740d 1826 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1827 if (err)
1828 return err;
1829
2b5e1967 1830 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1831}
1832
1833static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1834{
1835 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1836
1837 ieee80211_stop_mesh(sdata);
34a3740d 1838 mutex_lock(&sdata->local->mtx);
55de908a 1839 ieee80211_vif_release_channel(sdata);
34a3740d 1840 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1841
1842 return 0;
1843}
c5dd9c2b
LCC		 1844#endif
1845
9f1ba906
JM		 1846static int ieee80211_change_bss(struct wiphy *wiphy,
1847 struct net_device *dev,
1848 struct bss_parameters *params)
1849{
55de908a 1850 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
57fbcce3 1851 enum nl80211_band band;
9f1ba906
JM		 1852 u32 changed = 0;
1853
7ca133bc 1854 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1855 return -ENOENT;
1856
1857 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1858
9f1ba906 1859 if (params->use_cts_prot >= 0) {
bda3933a 1860 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1861 changed |= BSS_CHANGED_ERP_CTS_PROT;
1862 }
1863 if (params->use_short_preamble >= 0) {
bda3933a 1864 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1865 params->use_short_preamble;
1866 changed |= BSS_CHANGED_ERP_PREAMBLE;
1867 }
43d35343
FF		 1868
1869 if (!sdata->vif.bss_conf.use_short_slot &&
57fbcce3 1870 band == NL80211_BAND_5GHZ) {
43d35343
FF		 1871 sdata->vif.bss_conf.use_short_slot = true;
1872 changed |= BSS_CHANGED_ERP_SLOT;
1873 }
1874
9f1ba906 1875 if (params->use_short_slot_time >= 0) {
bda3933a 1876 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1877 params->use_short_slot_time;
1878 changed |= BSS_CHANGED_ERP_SLOT;
1879 }
1880
90c97a04 1881 if (params->basic_rates) {
2103dec1
SW		 1882 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1883 wiphy->bands[band],
1884 params->basic_rates,
1885 params->basic_rates_len,
1886 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 1887 changed |= BSS_CHANGED_BASIC_RATES;
1888 }
1889
7b7b5e56
FF		 1890 if (params->ap_isolate >= 0) {
1891 if (params->ap_isolate)
1892 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1893 else
1894 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
49ddf8e6 1895 ieee80211_check_fast_rx_iface(sdata);
7b7b5e56
FF		 1896 }
1897
80d7e403
HS		 1898 if (params->ht_opmode >= 0) {
1899 sdata->vif.bss_conf.ht_operation_mode =
1900 (u16) params->ht_opmode;
1901 changed |= BSS_CHANGED_HT;
1902 }
1903
339afbf4 1904 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1905 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1906 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1907 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1908 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1909 changed |= BSS_CHANGED_P2P_PS;
1910 }
1911
67baf663
JD		 1912 if (params->p2p_opp_ps > 0) {
1913 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1914 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1915 changed |= BSS_CHANGED_P2P_PS;
1916 } else if (params->p2p_opp_ps == 0) {
1917 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1918 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1919 changed |= BSS_CHANGED_P2P_PS;
1920 }
1921
9f1ba906
JM		 1922 ieee80211_bss_info_change_notify(sdata, changed);
1923
1924 return 0;
1925}
1926
31888487 1927static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1928 struct net_device *dev,
31888487
JM		 1929 struct ieee80211_txq_params *params)
1930{
1931 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1932 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1933 struct ieee80211_tx_queue_params p;
1934
1935 if (!local->ops->conf_tx)
1936 return -EOPNOTSUPP;
1937
54bcbc69
JB		 1938 if (local->hw.queues < IEEE80211_NUM_ACS)
1939 return -EOPNOTSUPP;
1940
31888487
JM		 1941 memset(&p, 0, sizeof(p));
1942 p.aifs = params->aifs;
1943 p.cw_max = params->cwmax;
1944 p.cw_min = params->cwmin;
1945 p.txop = params->txop;
ab13315a
KV		 1946
1947 /*
1948 * Setting tx queue params disables u-apsd because it's only
1949 * called in master mode.
1950 */
1951 p.uapsd = false;
1952
a3304b0a
JB		 1953 sdata->tx_conf[params->ac] = p;
1954 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 1955 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 1956 "failed to set TX queue parameters for AC %d\n",
1957 params->ac);
31888487
JM		 1958 return -EINVAL;
1959 }
1960
7d25745d
JB		 1961 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1962
31888487
JM		 1963 return 0;
1964}
1965
665af4fc 1966#ifdef CONFIG_PM
ff1b6e69
JB		 1967static int ieee80211_suspend(struct wiphy *wiphy,
1968 struct cfg80211_wowlan *wowlan)
665af4fc 1969{
eecc4800 1970 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1971}
1972
1973static int ieee80211_resume(struct wiphy *wiphy)
1974{
1975 return __ieee80211_resume(wiphy_priv(wiphy));
1976}
1977#else
1978#define ieee80211_suspend NULL
1979#define ieee80211_resume NULL
1980#endif
1981
2a519311 1982static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 1983 struct cfg80211_scan_request *req)
1984{
fd014284
JB		 1985 struct ieee80211_sub_if_data *sdata;
1986
1987 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 1988
2ca27bcf
JB		 1989 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1990 case NL80211_IFTYPE_STATION:
1991 case NL80211_IFTYPE_ADHOC:
1992 case NL80211_IFTYPE_MESH_POINT:
1993 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 1994 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 1995 break;
1996 case NL80211_IFTYPE_P2P_GO:
1997 if (sdata->local->ops->hw_scan)
1998 break;
e9d7732e
JB		 1999 /*
2000 * FIXME: implement NoA while scanning in software,
2001 * for now fall through to allow scanning only when
2002 * beaconing hasn't been configured yet
2003 */
2ca27bcf 2004 case NL80211_IFTYPE_AP:
5c95b940
AQ		 2005 /*
2006 * If the scan has been forced (and the driver supports
2007 * forcing), don't care about being beaconing already.
2008 * This will create problems to the attached stations (e.g. all
2009 * the frames sent while scanning on other channel will be
2010 * lost)
2011 */
2012 if (sdata->u.ap.beacon &&
2013 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2014 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2015 return -EOPNOTSUPP;
2016 break;
2017 default:
2018 return -EOPNOTSUPP;
2019 }
2a519311
JB		 2020
2021 return ieee80211_request_scan(sdata, req);
2022}
2023
91f123f2
VK		 2024static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2025{
2026 ieee80211_scan_cancel(wiphy_priv(wiphy));
2027}
2028
79f460ca
LC		 2029static int
2030ieee80211_sched_scan_start(struct wiphy *wiphy,
2031 struct net_device *dev,
2032 struct cfg80211_sched_scan_request *req)
2033{
2034 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2035
2036 if (!sdata->local->ops->sched_scan_start)
2037 return -EOPNOTSUPP;
2038
2039 return ieee80211_request_sched_scan_start(sdata, req);
2040}
2041
2042static int
85a9994a 2043ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca 2044{
0d440ea2 2045 struct ieee80211_local *local = wiphy_priv(wiphy);
79f460ca 2046
0d440ea2 2047 if (!local->ops->sched_scan_stop)
79f460ca
LC		 2048 return -EOPNOTSUPP;
2049
0d440ea2 2050 return ieee80211_request_sched_scan_stop(local);
79f460ca
LC		 2051}
2052
636a5d36
JM		 2053static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2054 struct cfg80211_auth_request *req)
2055{
77fdaa12 2056 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2057}
2058
2059static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2060 struct cfg80211_assoc_request *req)
2061{
77fdaa12 2062 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2063}
2064
2065static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2066 struct cfg80211_deauth_request *req)
636a5d36 2067{
63c9c5e7 2068 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2069}
2070
2071static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2072 struct cfg80211_disassoc_request *req)
636a5d36 2073{
63c9c5e7 2074 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2075}
2076
af8cdcd8
JB		 2077static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2078 struct cfg80211_ibss_params *params)
2079{
55de908a 2080 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2081}
2082
2083static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2084{
55de908a 2085 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2086}
2087
239281f8
RL		 2088static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2089 struct ocb_setup *setup)
2090{
2091 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2092}
2093
2094static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2095{
2096 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2097}
2098
391e53e3 2099static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
57fbcce3 2100 int rate[NUM_NL80211_BANDS])
391e53e3
AQ		 2101{
2102 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2103
9887dbf5 2104 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
57fbcce3 2105 sizeof(int) * NUM_NL80211_BANDS);
391e53e3
AQ		 2106
2107 return 0;
2108}
2109
b9a5f8ca
JM		 2110static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2111{
2112 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2113 int err;
b9a5f8ca 2114
f23a4780 2115 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
17c18bf8
JB		 2116 ieee80211_check_fast_xmit_all(local);
2117
f23a4780
AN		 2118 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2119
17c18bf8
JB		 2120 if (err) {
2121 ieee80211_check_fast_xmit_all(local);
f23a4780 2122 return err;
17c18bf8 2123 }
f23a4780
AN		 2124 }
2125
a4bcaf55
LB		 2126 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2127 (changed & WIPHY_PARAM_DYN_ACK)) {
2128 s16 coverage_class;
2129
2130 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2131 wiphy->coverage_class : -1;
2132 err = drv_set_coverage_class(local, coverage_class);
310bc676
LT		 2133
2134 if (err)
2135 return err;
2136 }
2137
b9a5f8ca 2138 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2139 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2140
24487981
JB		 2141 if (err)
2142 return err;
b9a5f8ca
JM		 2143 }
2144
8bc83c24
JB		 2145 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2146 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2147 return -EINVAL;
b9a5f8ca 2148 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2149 }
2150 if (changed & WIPHY_PARAM_RETRY_LONG) {
2151 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2152 return -EINVAL;
b9a5f8ca 2153 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2154 }
b9a5f8ca
JM		 2155 if (changed &
2156 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2157 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2158
2159 return 0;
2160}
2161
7643a2c3 2162static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2163 struct wireless_dev *wdev,
fa61cf70 2164 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2165{
2166 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2167 struct ieee80211_sub_if_data *sdata;
db82d8a9
LB		 2168 enum nl80211_tx_power_setting txp_type = type;
2169 bool update_txp_type = false;
7643a2c3 2170
1ea6f9c0
JB		 2171 if (wdev) {
2172 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2173
2174 switch (type) {
2175 case NL80211_TX_POWER_AUTOMATIC:
2176 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2177 txp_type = NL80211_TX_POWER_LIMITED;
1ea6f9c0
JB		 2178 break;
2179 case NL80211_TX_POWER_LIMITED:
2180 case NL80211_TX_POWER_FIXED:
2181 if (mbm < 0 || (mbm % 100))
2182 return -EOPNOTSUPP;
2183 sdata->user_power_level = MBM_TO_DBM(mbm);
2184 break;
2185 }
2186
db82d8a9
LB		 2187 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2188 update_txp_type = true;
2189 sdata->vif.bss_conf.txpower_type = txp_type;
2190 }
2191
2192 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0
JB		 2193
2194 return 0;
2195 }
55de908a 2196
7643a2c3 2197 switch (type) {
fa61cf70 2198 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2199 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2200 txp_type = NL80211_TX_POWER_LIMITED;
7643a2c3 2201 break;
fa61cf70 2202 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2203 case NL80211_TX_POWER_FIXED:
2204 if (mbm < 0 || (mbm % 100))
2205 return -EOPNOTSUPP;
fa61cf70 2206 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2207 break;
7643a2c3
JB		 2208 }
2209
1ea6f9c0 2210 mutex_lock(&local->iflist_mtx);
db82d8a9 2211 list_for_each_entry(sdata, &local->interfaces, list) {
1ea6f9c0 2212 sdata->user_power_level = local->user_power_level;
db82d8a9
LB		 2213 if (txp_type != sdata->vif.bss_conf.txpower_type)
2214 update_txp_type = true;
2215 sdata->vif.bss_conf.txpower_type = txp_type;
2216 }
1ea6f9c0 2217 list_for_each_entry(sdata, &local->interfaces, list)
db82d8a9 2218 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0 2219 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2220
2221 return 0;
2222}
2223
c8442118
JB		 2224static int ieee80211_get_tx_power(struct wiphy *wiphy,
2225 struct wireless_dev *wdev,
2226 int *dbm)
7643a2c3
JB		 2227{
2228 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2229 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2230
5b3dc42b
FF		 2231 if (local->ops->get_txpower)
2232 return drv_get_txpower(local, sdata, dbm);
2233
1ea6f9c0
JB		 2234 if (!local->use_chanctx)
2235 *dbm = local->hw.conf.power_level;
2236 else
2237 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2238
7643a2c3
JB		 2239 return 0;
2240}
2241
ab737a4f 2242static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2243 const u8 *addr)
ab737a4f
JB		 2244{
2245 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2246
2247 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2248
2249 return 0;
2250}
2251
1f87f7d3
JB		 2252static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2253{
2254 struct ieee80211_local *local = wiphy_priv(wiphy);
2255
2256 drv_rfkill_poll(local);
2257}
2258
aff89a9b 2259#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2260static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2261 struct wireless_dev *wdev,
2262 void *data, int len)
aff89a9b
JB		 2263{
2264 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2265 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2266
2267 if (!local->ops->testmode_cmd)
2268 return -EOPNOTSUPP;
2269
52981cd7
DS		 2270 if (wdev) {
2271 struct ieee80211_sub_if_data *sdata;
2272
2273 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2274 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2275 vif = &sdata->vif;
2276 }
2277
2278 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2279}
71063f0e
WYG		 2280
2281static int ieee80211_testmode_dump(struct wiphy *wiphy,
2282 struct sk_buff *skb,
2283 struct netlink_callback *cb,
2284 void *data, int len)
2285{
2286 struct ieee80211_local *local = wiphy_priv(wiphy);
2287
2288 if (!local->ops->testmode_dump)
2289 return -EOPNOTSUPP;
2290
2291 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2292}
aff89a9b
JB		 2293#endif
2294
687da132
EG		 2295int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2296 enum ieee80211_smps_mode smps_mode)
2297{
2298 struct sta_info *sta;
2299 enum ieee80211_smps_mode old_req;
687da132
EG		 2300
2301 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2302 return -EINVAL;
2303
2304 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2305 return 0;
2306
2307 old_req = sdata->u.ap.req_smps;
2308 sdata->u.ap.req_smps = smps_mode;
2309
2310 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2311 if (old_req == smps_mode ||
2312 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2313 return 0;
2314
2315 /* If no associated stations, there's no need to do anything */
2316 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2317 sdata->smps_mode = smps_mode;
2318 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2319 return 0;
2320 }
2321
2322 ht_dbg(sdata,
6a8b4adb 2323 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
687da132
EG		 2324 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2325
2326 mutex_lock(&sdata->local->sta_mtx);
7d9bb2f0
JB		 2327 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2328 /*
2329 * Only stations associated to our AP and
2330 * associated VLANs
2331 */
2332 if (sta->sdata->bss != &sdata->u.ap)
2333 continue;
687da132 2334
7d9bb2f0
JB		 2335 /* This station doesn't support MIMO - skip it */
2336 if (sta_info_tx_streams(sta) == 1)
2337 continue;
687da132 2338
7d9bb2f0
JB		 2339 /*
2340 * Don't wake up a STA just to send the action frame
2341 * unless we are getting more restrictive.
2342 */
2343 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2344 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2345 smps_mode)) {
2346 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2347 sta->sta.addr);
2348 continue;
2349 }
687da132 2350
7d9bb2f0
JB		 2351 /*
2352 * If the STA is not authorized, wait until it gets
2353 * authorized and the action frame will be sent then.
2354 */
2355 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2356 continue;
687da132 2357
7d9bb2f0
JB		 2358 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2359 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2360 sdata->vif.bss_conf.bssid);
687da132
EG		 2361 }
2362 mutex_unlock(&sdata->local->sta_mtx);
2363
2364 sdata->smps_mode = smps_mode;
2365 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2366
2367 return 0;
2368}
2369
2370int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2371 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2372{
2373 const u8 *ap;
2374 enum ieee80211_smps_mode old_req;
2375 int err;
d51c2ea3
AN		 2376 struct sta_info *sta;
2377 bool tdls_peer_found = false;
0f78231b 2378
8d61ffa5 2379 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2380
687da132
EG		 2381 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2382 return -EINVAL;
2383
0f78231b
JB		 2384 old_req = sdata->u.mgd.req_smps;
2385 sdata->u.mgd.req_smps = smps_mode;
2386
2387 if (old_req == smps_mode &&
2388 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2389 return 0;
2390
2391 /*
2392 * If not associated, or current association is not an HT
04ecd257
JB		 2393 * association, there's no need to do anything, just store
2394 * the new value until we associate.
0f78231b
JB		 2395 */
2396 if (!sdata->u.mgd.associated ||
4bf88530 2397 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2398 return 0;
0f78231b 2399
0c1ad2ca 2400 ap = sdata->u.mgd.associated->bssid;
0f78231b 2401
d51c2ea3
AN		 2402 rcu_read_lock();
2403 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2404 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2405 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2406 continue;
2407
2408 tdls_peer_found = true;
2409 break;
2410 }
2411 rcu_read_unlock();
2412
0f78231b 2413 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
d51c2ea3 2414 if (tdls_peer_found || !sdata->u.mgd.powersave)
0f78231b 2415 smps_mode = IEEE80211_SMPS_OFF;
d51c2ea3
AN		 2416 else
2417 smps_mode = IEEE80211_SMPS_DYNAMIC;
0f78231b
JB		 2418 }
2419
2420 /* send SM PS frame to AP */
2421 err = ieee80211_send_smps_action(sdata, smps_mode,
2422 ap, ap);
2423 if (err)
2424 sdata->u.mgd.req_smps = old_req;
d51c2ea3
AN		 2425 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2426 ieee80211_teardown_tdls_peers(sdata);
0f78231b
JB		 2427
2428 return err;
2429}
2430
bc92afd9
JB		 2431static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2432 bool enabled, int timeout)
2433{
2434 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2435 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2436
2d3db210 2437 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2438 return -EOPNOTSUPP;
2439
30686bf7 2440 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
bc92afd9
JB		 2441 return -EOPNOTSUPP;
2442
2443 if (enabled == sdata->u.mgd.powersave &&
ff616381 2444 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2445 return 0;
2446
2447 sdata->u.mgd.powersave = enabled;
ff616381 2448 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2449
0f78231b 2450 /* no change, but if automatic follow powersave */
ed405be5 2451 sdata_lock(sdata);
687da132 2452 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2453 sdata_unlock(sdata);
0f78231b 2454
30686bf7 2455 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
bc92afd9
JB		 2456 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2457
4a733ef1 2458 ieee80211_recalc_ps(local);
ab095877 2459 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2460
2461 return 0;
2462}
2463
a97c13c3
JO		 2464static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2465 struct net_device *dev,
2466 s32 rssi_thold, u32 rssi_hyst)
2467{
2468 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2469 struct ieee80211_vif *vif = &sdata->vif;
2470 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2471
a97c13c3
JO		 2472 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2473 rssi_hyst == bss_conf->cqm_rssi_hyst)
2474 return 0;
2475
ef9be10c
JB		 2476 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2477 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2478 return -EOPNOTSUPP;
2479
a97c13c3
JO		 2480 bss_conf->cqm_rssi_thold = rssi_thold;
2481 bss_conf->cqm_rssi_hyst = rssi_hyst;
babc305e 2482 sdata->u.mgd.last_cqm_event_signal = 0;
a97c13c3
JO		 2483
2484 /* tell the driver upon association, unless already associated */
ea086359
JB		 2485 if (sdata->u.mgd.associated &&
2486 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2487 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2488
2489 return 0;
2490}
2491
9930380f
JB		 2492static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2493 struct net_device *dev,
2494 const u8 *addr,
2495 const struct cfg80211_bitrate_mask *mask)
2496{
2497 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2498 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2499 int i, ret;
2c7e6bc9 2500
554a43d5
EP		 2501 if (!ieee80211_sdata_running(sdata))
2502 return -ENETDOWN;
2503
30686bf7 2504 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
bdbfd6b5
SM		 2505 ret = drv_set_bitrate_mask(local, sdata, mask);
2506 if (ret)
2507 return ret;
2508 }
9930380f 2509
57fbcce3 2510 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2ffbe6d3
FF		 2511 struct ieee80211_supported_band *sband = wiphy->bands[i];
2512 int j;
2513
37eb0b16 2514 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2515 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2516 sizeof(mask->control[i].ht_mcs));
b119ad6e
LB		 2517 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2518 mask->control[i].vht_mcs,
2519 sizeof(mask->control[i].vht_mcs));
2ffbe6d3
FF		 2520
2521 sdata->rc_has_mcs_mask[i] = false;
b119ad6e 2522 sdata->rc_has_vht_mcs_mask[i] = false;
2ffbe6d3
FF		 2523 if (!sband)
2524 continue;
2525
b119ad6e 2526 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2df1b131 2527 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2ffbe6d3 2528 sdata->rc_has_mcs_mask[i] = true;
2df1b131
JB		 2529 break;
2530 }
2531 }
b119ad6e 2532
2df1b131
JB		 2533 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2534 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
b119ad6e 2535 sdata->rc_has_vht_mcs_mask[i] = true;
2ffbe6d3 2536 break;
2df1b131 2537 }
b119ad6e 2538 }
19468413 2539 }
9930380f 2540
37eb0b16 2541 return 0;
9930380f
JB		 2542}
2543
164eb02d
SW		 2544static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2545 struct net_device *dev,
31559f35
JD		 2546 struct cfg80211_chan_def *chandef,
2547 u32 cac_time_ms)
164eb02d
SW		 2548{
2549 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2550 struct ieee80211_local *local = sdata->local;
164eb02d
SW		 2551 int err;
2552
34a3740d
JB		 2553 mutex_lock(&local->mtx);
2554 if (!list_empty(&local->roc_list) || local->scanning) {
2555 err = -EBUSY;
2556 goto out_unlock;
2557 }
164eb02d
SW		 2558
2559 /* whatever, but channel contexts should not complain about that one */
2560 sdata->smps_mode = IEEE80211_SMPS_OFF;
2561 sdata->needed_rx_chains = local->rx_chains;
164eb02d 2562
164eb02d
SW		 2563 err = ieee80211_vif_use_channel(sdata, chandef,
2564 IEEE80211_CHANCTX_SHARED);
164eb02d 2565 if (err)
34a3740d 2566 goto out_unlock;
164eb02d 2567
164eb02d 2568 ieee80211_queue_delayed_work(&sdata->local->hw,
31559f35
JD		 2569 &sdata->dfs_cac_timer_work,
2570 msecs_to_jiffies(cac_time_ms));
164eb02d 2571
34a3740d
JB		 2572 out_unlock:
2573 mutex_unlock(&local->mtx);
2574 return err;
164eb02d
SW		 2575}
2576
73da7d5b
SW		 2577static struct cfg80211_beacon_data *
2578cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2579{
2580 struct cfg80211_beacon_data *new_beacon;
2581 u8 *pos;
2582 int len;
2583
2584 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2585 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2586 beacon->probe_resp_len;
2587
2588 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2589 if (!new_beacon)
2590 return NULL;
2591
2592 pos = (u8 *)(new_beacon + 1);
2593 if (beacon->head_len) {
2594 new_beacon->head_len = beacon->head_len;
2595 new_beacon->head = pos;
2596 memcpy(pos, beacon->head, beacon->head_len);
2597 pos += beacon->head_len;
2598 }
2599 if (beacon->tail_len) {
2600 new_beacon->tail_len = beacon->tail_len;
2601 new_beacon->tail = pos;
2602 memcpy(pos, beacon->tail, beacon->tail_len);
2603 pos += beacon->tail_len;
2604 }
2605 if (beacon->beacon_ies_len) {
2606 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2607 new_beacon->beacon_ies = pos;
2608 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2609 pos += beacon->beacon_ies_len;
2610 }
2611 if (beacon->proberesp_ies_len) {
2612 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2613 new_beacon->proberesp_ies = pos;
2614 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2615 pos += beacon->proberesp_ies_len;
2616 }
2617 if (beacon->assocresp_ies_len) {
2618 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2619 new_beacon->assocresp_ies = pos;
2620 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2621 pos += beacon->assocresp_ies_len;
2622 }
2623 if (beacon->probe_resp_len) {
2624 new_beacon->probe_resp_len = beacon->probe_resp_len;
2625 beacon->probe_resp = pos;
2626 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2627 pos += beacon->probe_resp_len;
2628 }
2629
2630 return new_beacon;
2631}
2632
66e01cf9 2633void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2634{
66e01cf9 2635 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2636
66e01cf9
LC		 2637 ieee80211_queue_work(&sdata->local->hw,
2638 &sdata->csa_finalize_work);
2639}
2640EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 2641
66199506
MK		 2642static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2643 u32 *changed)
66e01cf9 2644{
66199506 2645 int err;
7578d575 2646
cd7760e6
SW		 2647 switch (sdata->vif.type) {
2648 case NL80211_IFTYPE_AP:
af296bdb
MK		 2649 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2650 NULL);
97518af1
MK		 2651 kfree(sdata->u.ap.next_beacon);
2652 sdata->u.ap.next_beacon = NULL;
2653
cd7760e6 2654 if (err < 0)
66199506
MK		 2655 return err;
2656 *changed |= err;
cd7760e6
SW		 2657 break;
2658 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 2659 err = ieee80211_ibss_finish_csa(sdata);
2660 if (err < 0)
66199506
MK		 2661 return err;
2662 *changed |= err;
cd7760e6 2663 break;
b8456a14
CYY		 2664#ifdef CONFIG_MAC80211_MESH
2665 case NL80211_IFTYPE_MESH_POINT:
2666 err = ieee80211_mesh_finish_csa(sdata);
2667 if (err < 0)
66199506
MK		 2668 return err;
2669 *changed |= err;
b8456a14
CYY		 2670 break;
2671#endif
cd7760e6
SW		 2672 default:
2673 WARN_ON(1);
66199506
MK		 2674 return -EINVAL;
2675 }
2676
2677 return 0;
2678}
2679
cf8767dd 2680static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
66199506
MK		 2681{
2682 struct ieee80211_local *local = sdata->local;
2683 u32 changed = 0;
2684 int err;
2685
2686 sdata_assert_lock(sdata);
2687 lockdep_assert_held(&local->mtx);
03078de4 2688 lockdep_assert_held(&local->chanctx_mtx);
66199506 2689
03078de4
MK		 2690 /*
2691 * using reservation isn't immediate as it may be deferred until later
2692 * with multi-vif. once reservation is complete it will re-schedule the
2693 * work with no reserved_chanctx so verify chandef to check if it
2694 * completed successfully
2695 */
66199506 2696
03078de4
MK		 2697 if (sdata->reserved_chanctx) {
2698 /*
2699 * with multi-vif csa driver may call ieee80211_csa_finish()
2700 * many times while waiting for other interfaces to use their
2701 * reservations
2702 */
2703 if (sdata->reserved_ready)
2704 return 0;
2705
408b18ab 2706 return ieee80211_vif_use_reserved_context(sdata);
cd7760e6 2707 }
73da7d5b 2708
03078de4
MK		 2709 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2710 &sdata->csa_chandef))
2711 return -EINVAL;
2712
66199506
MK		 2713 sdata->vif.csa_active = false;
2714
2715 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2716 if (err)
cf8767dd 2717 return err;
faf046e7 2718
66199506 2719 ieee80211_bss_info_change_notify(sdata, changed);
59af6928 2720
a46992b4
LC		 2721 if (sdata->csa_block_tx) {
2722 ieee80211_wake_vif_queues(local, sdata,
2723 IEEE80211_QUEUE_STOP_REASON_CSA);
2724 sdata->csa_block_tx = false;
2725 }
cf8767dd 2726
f1d65583
LC		 2727 err = drv_post_channel_switch(sdata);
2728 if (err)
2729 return err;
2730
2731 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2732
cf8767dd
MK		 2733 return 0;
2734}
2735
2736static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2737{
2738 if (__ieee80211_csa_finalize(sdata)) {
2739 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2740 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2741 GFP_KERNEL);
2742 }
66e01cf9
LC		 2743}
2744
2745void ieee80211_csa_finalize_work(struct work_struct *work)
2746{
2747 struct ieee80211_sub_if_data *sdata =
2748 container_of(work, struct ieee80211_sub_if_data,
2749 csa_finalize_work);
59af6928 2750 struct ieee80211_local *local = sdata->local;
66e01cf9
LC		 2751
2752 sdata_lock(sdata);
59af6928 2753 mutex_lock(&local->mtx);
03078de4 2754 mutex_lock(&local->chanctx_mtx);
59af6928 2755
66e01cf9
LC		 2756 /* AP might have been stopped while waiting for the lock. */
2757 if (!sdata->vif.csa_active)
2758 goto unlock;
2759
2760 if (!ieee80211_sdata_running(sdata))
2761 goto unlock;
2762
2763 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 2764
2765unlock:
03078de4 2766 mutex_unlock(&local->chanctx_mtx);
59af6928 2767 mutex_unlock(&local->mtx);
e487eaeb 2768 sdata_unlock(sdata);
73da7d5b
SW		 2769}
2770
37fa2bdd
MK		 2771static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2772 struct cfg80211_csa_settings *params,
2773 u32 *changed)
73da7d5b 2774{
af296bdb 2775 struct ieee80211_csa_settings csa = {};
37fa2bdd 2776 int err;
73da7d5b 2777
73da7d5b
SW		 2778 switch (sdata->vif.type) {
2779 case NL80211_IFTYPE_AP:
cd7760e6
SW		 2780 sdata->u.ap.next_beacon =
2781 cfg80211_beacon_dup(&params->beacon_after);
2782 if (!sdata->u.ap.next_beacon)
2783 return -ENOMEM;
2784
66e01cf9
LC		 2785 /*
2786 * With a count of 0, we don't have to wait for any
2787 * TBTT before switching, so complete the CSA
2788 * immediately. In theory, with a count == 1 we
2789 * should delay the switch until just before the next
2790 * TBTT, but that would complicate things so we switch
2791 * immediately too. If we would delay the switch
2792 * until the next TBTT, we would have to set the probe
2793 * response here.
2794 *
2795 * TODO: A channel switch with count <= 1 without
2796 * sending a CSA action frame is kind of useless,
2797 * because the clients won't know we're changing
2798 * channels. The action frame must be implemented
2799 * either here or in the userspace.
2800 */
2801 if (params->count <= 1)
2802 break;
2803
0d06d9ba
AO		 2804 if ((params->n_counter_offsets_beacon >
2805 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2806 (params->n_counter_offsets_presp >
2807 IEEE80211_MAX_CSA_COUNTERS_NUM))
2808 return -EINVAL;
9a774c78 2809
af296bdb
MK		 2810 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2811 csa.counter_offsets_presp = params->counter_offsets_presp;
2812 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2813 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2814 csa.count = params->count;
9a774c78 2815
af296bdb 2816 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
cd7760e6
SW		 2817 if (err < 0) {
2818 kfree(sdata->u.ap.next_beacon);
2819 return err;
2820 }
37fa2bdd 2821 *changed |= err;
66e01cf9 2822
cd7760e6
SW		 2823 break;
2824 case NL80211_IFTYPE_ADHOC:
2825 if (!sdata->vif.bss_conf.ibss_joined)
2826 return -EINVAL;
2827
2828 if (params->chandef.width != sdata->u.ibss.chandef.width)
2829 return -EINVAL;
2830
2831 switch (params->chandef.width) {
2832 case NL80211_CHAN_WIDTH_40:
2833 if (cfg80211_get_chandef_type(&params->chandef) !=
2834 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2835 return -EINVAL;
2836 case NL80211_CHAN_WIDTH_5:
2837 case NL80211_CHAN_WIDTH_10:
2838 case NL80211_CHAN_WIDTH_20_NOHT:
2839 case NL80211_CHAN_WIDTH_20:
2840 break;
2841 default:
2842 return -EINVAL;
2843 }
2844
2845 /* changes into another band are not supported */
2846 if (sdata->u.ibss.chandef.chan->band !=
2847 params->chandef.chan->band)
2848 return -EINVAL;
2849
66e01cf9
LC		 2850 /* see comments in the NL80211_IFTYPE_AP block */
2851 if (params->count > 1) {
2852 err = ieee80211_ibss_csa_beacon(sdata, params);
2853 if (err < 0)
2854 return err;
37fa2bdd 2855 *changed |= err;
66e01cf9
LC		 2856 }
2857
2858 ieee80211_send_action_csa(sdata, params);
2859
73da7d5b 2860 break;
c6da674a 2861#ifdef CONFIG_MAC80211_MESH
37fa2bdd
MK		 2862 case NL80211_IFTYPE_MESH_POINT: {
2863 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a 2864
c6da674a
CYY		 2865 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
2866 return -EINVAL;
2867
2868 /* changes into another band are not supported */
2869 if (sdata->vif.bss_conf.chandef.chan->band !=
2870 params->chandef.chan->band)
2871 return -EINVAL;
2872
c782bf8c 2873 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 2874 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 2875 if (!ifmsh->pre_value)
2876 ifmsh->pre_value = 1;
2877 else
2878 ifmsh->pre_value++;
2879 }
0cb4d4dc 2880
66e01cf9
LC		 2881 /* see comments in the NL80211_IFTYPE_AP block */
2882 if (params->count > 1) {
2883 err = ieee80211_mesh_csa_beacon(sdata, params);
2884 if (err < 0) {
2885 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
2886 return err;
2887 }
37fa2bdd 2888 *changed |= err;
3f718fd8 2889 }
66e01cf9
LC		 2890
2891 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
2892 ieee80211_send_action_csa(sdata, params);
2893
c6da674a 2894 break;
37fa2bdd 2895 }
c6da674a 2896#endif
73da7d5b
SW		 2897 default:
2898 return -EOPNOTSUPP;
2899 }
2900
37fa2bdd
MK		 2901 return 0;
2902}
2903
f29f58a9
LC		 2904static int
2905__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2906 struct cfg80211_csa_settings *params)
37fa2bdd
MK		 2907{
2908 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2909 struct ieee80211_local *local = sdata->local;
6d027bcc 2910 struct ieee80211_channel_switch ch_switch;
2b32713d 2911 struct ieee80211_chanctx_conf *conf;
37fa2bdd 2912 struct ieee80211_chanctx *chanctx;
b08cc24e
JB		 2913 u32 changed = 0;
2914 int err;
37fa2bdd
MK		 2915
2916 sdata_assert_lock(sdata);
59af6928 2917 lockdep_assert_held(&local->mtx);
37fa2bdd
MK		 2918
2919 if (!list_empty(&local->roc_list) || local->scanning)
2920 return -EBUSY;
2921
2922 if (sdata->wdev.cac_started)
2923 return -EBUSY;
2924
2925 if (cfg80211_chandef_identical(&params->chandef,
2926 &sdata->vif.bss_conf.chandef))
2927 return -EINVAL;
2928
03078de4
MK		 2929 /* don't allow another channel switch if one is already active. */
2930 if (sdata->vif.csa_active)
2931 return -EBUSY;
2932
2b32713d
MK		 2933 mutex_lock(&local->chanctx_mtx);
2934 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
2935 lockdep_is_held(&local->chanctx_mtx));
2936 if (!conf) {
03078de4
MK		 2937 err = -EBUSY;
2938 goto out;
37fa2bdd
MK		 2939 }
2940
2b32713d 2941 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
03078de4
MK		 2942 if (!chanctx) {
2943 err = -EBUSY;
2944 goto out;
37fa2bdd 2945 }
37fa2bdd 2946
000baa5d
LC		 2947 ch_switch.timestamp = 0;
2948 ch_switch.device_timestamp = 0;
2949 ch_switch.block_tx = params->block_tx;
2950 ch_switch.chandef = params->chandef;
2951 ch_switch.count = params->count;
2952
6d027bcc
LC		 2953 err = drv_pre_channel_switch(sdata, &ch_switch);
2954 if (err)
2955 goto out;
2956
03078de4
MK		 2957 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
2958 chanctx->mode,
2959 params->radar_required);
2960 if (err)
2961 goto out;
37fa2bdd 2962
03078de4
MK		 2963 /* if reservation is invalid then this will fail */
2964 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
2965 if (err) {
2966 ieee80211_vif_unreserve_chanctx(sdata);
2967 goto out;
2968 }
37fa2bdd
MK		 2969
2970 err = ieee80211_set_csa_beacon(sdata, params, &changed);
03078de4
MK		 2971 if (err) {
2972 ieee80211_vif_unreserve_chanctx(sdata);
2973 goto out;
2974 }
37fa2bdd 2975
33787fc4 2976 sdata->csa_chandef = params->chandef;
59af6928 2977 sdata->csa_block_tx = params->block_tx;
73da7d5b
SW		 2978 sdata->vif.csa_active = true;
2979
59af6928 2980 if (sdata->csa_block_tx)
a46992b4
LC		 2981 ieee80211_stop_vif_queues(local, sdata,
2982 IEEE80211_QUEUE_STOP_REASON_CSA);
59af6928 2983
2f457293
LC		 2984 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
2985 params->count);
2986
66e01cf9
LC		 2987 if (changed) {
2988 ieee80211_bss_info_change_notify(sdata, changed);
2989 drv_channel_switch_beacon(sdata, &params->chandef);
2990 } else {
2991 /* if the beacon didn't change, we can finalize immediately */
2992 ieee80211_csa_finalize(sdata);
2993 }
73da7d5b 2994
03078de4
MK		 2995out:
2996 mutex_unlock(&local->chanctx_mtx);
2997 return err;
73da7d5b
SW		 2998}
2999
59af6928
MK		 3000int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3001 struct cfg80211_csa_settings *params)
3002{
3003 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3004 struct ieee80211_local *local = sdata->local;
3005 int err;
3006
3007 mutex_lock(&local->mtx);
3008 err = __ieee80211_channel_switch(wiphy, dev, params);
3009 mutex_unlock(&local->mtx);
3010
3011 return err;
3012}
3013
a2fcfccb
JB		 3014u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3015{
3016 lockdep_assert_held(&local->mtx);
3017
3018 local->roc_cookie_counter++;
3019
3020 /* wow, you wrapped 64 bits ... more likely a bug */
3021 if (WARN_ON(local->roc_cookie_counter == 0))
3022 local->roc_cookie_counter++;
3023
3024 return local->roc_cookie_counter;
3025}
3026
5ee00dbd
JB		 3027int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3028 u64 *cookie, gfp_t gfp)
3b79af97
JB		 3029{
3030 unsigned long spin_flags;
3031 struct sk_buff *ack_skb;
3032 int id;
3033
3034 ack_skb = skb_copy(skb, gfp);
3035 if (!ack_skb)
5ee00dbd 3036 return -ENOMEM;
3b79af97
JB		 3037
3038 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3039 id = idr_alloc(&local->ack_status_frames, ack_skb,
3040 1, 0x10000, GFP_ATOMIC);
3041 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3042
3043 if (id < 0) {
3044 kfree_skb(ack_skb);
5ee00dbd 3045 return -ENOMEM;
3b79af97
JB		 3046 }
3047
3048 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3049
3050 *cookie = ieee80211_mgmt_tx_cookie(local);
3051 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3052
5ee00dbd 3053 return 0;
3b79af97
JB		 3054}
3055
7be5086d 3056static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3057 struct wireless_dev *wdev,
7be5086d
JB		 3058 u16 frame_type, bool reg)
3059{
3060 struct ieee80211_local *local = wiphy_priv(wiphy);
1b09b556 3061 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7be5086d 3062
6abe0563 3063 switch (frame_type) {
6abe0563 3064 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
1b09b556 3065 if (reg) {
6abe0563 3066 local->probe_req_reg++;
1b09b556
AO		 3067 sdata->vif.probe_req_reg++;
3068 } else {
3069 if (local->probe_req_reg)
3070 local->probe_req_reg--;
3071
3072 if (sdata->vif.probe_req_reg)
3073 sdata->vif.probe_req_reg--;
3074 }
7be5086d 3075
35f5149e
FF		 3076 if (!local->open_count)
3077 break;
3078
1b09b556
AO		 3079 if (sdata->vif.probe_req_reg == 1)
3080 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3081 FIF_PROBE_REQ);
3082 else if (sdata->vif.probe_req_reg == 0)
3083 drv_config_iface_filter(local, sdata, 0,
3084 FIF_PROBE_REQ);
3085
3086 ieee80211_configure_filter(local);
6abe0563
WH		 3087 break;
3088 default:
3089 break;
3090 }
7be5086d
JB		 3091}
3092
15d96753
BR		 3093static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3094{
3095 struct ieee80211_local *local = wiphy_priv(wiphy);
3096
3097 if (local->started)
3098 return -EOPNOTSUPP;
3099
3100 return drv_set_antenna(local, tx_ant, rx_ant);
3101}
3102
3103static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3104{
3105 struct ieee80211_local *local = wiphy_priv(wiphy);
3106
3107 return drv_get_antenna(local, tx_ant, rx_ant);
3108}
3109
c68f4b89
JB		 3110static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3111 struct net_device *dev,
3112 struct cfg80211_gtk_rekey_data *data)
3113{
3114 struct ieee80211_local *local = wiphy_priv(wiphy);
3115 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3116
3117 if (!local->ops->set_rekey_data)
3118 return -EOPNOTSUPP;
3119
3120 drv_set_rekey_data(local, sdata, data);
3121
3122 return 0;
3123}
3124
06500736
JB		 3125static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3126 const u8 *peer, u64 *cookie)
3127{
3128 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3129 struct ieee80211_local *local = sdata->local;
3130 struct ieee80211_qos_hdr *nullfunc;
5ee00dbd 3131 struct sk_buff *skb;
06500736
JB		 3132 int size = sizeof(*nullfunc);
3133 __le16 fc;
3134 bool qos;
3135 struct ieee80211_tx_info *info;
3136 struct sta_info *sta;
55de908a 3137 struct ieee80211_chanctx_conf *chanctx_conf;
57fbcce3 3138 enum nl80211_band band;
3b79af97
JB		 3139 int ret;
3140
3141 /* the lock is needed to assign the cookie later */
3142 mutex_lock(&local->mtx);
06500736
JB		 3143
3144 rcu_read_lock();
55de908a
JB		 3145 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3146 if (WARN_ON(!chanctx_conf)) {
3b79af97
JB		 3147 ret = -EINVAL;
3148 goto unlock;
55de908a 3149 }
4bf88530 3150 band = chanctx_conf->def.chan->band;
03bb7f42 3151 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3152 if (sta) {
a74a8c84 3153 qos = sta->sta.wme;
b4487c2d 3154 } else {
3b79af97
JB		 3155 ret = -ENOLINK;
3156 goto unlock;
b4487c2d 3157 }
06500736
JB		 3158
3159 if (qos) {
3160 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3161 IEEE80211_STYPE_QOS_NULLFUNC |
3162 IEEE80211_FCTL_FROMDS);
3163 } else {
3164 size -= 2;
3165 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3166 IEEE80211_STYPE_NULLFUNC |
3167 IEEE80211_FCTL_FROMDS);
3168 }
3169
3170 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a 3171 if (!skb) {
3b79af97
JB		 3172 ret = -ENOMEM;
3173 goto unlock;
55de908a 3174 }
06500736
JB		 3175
3176 skb->dev = dev;
3177
3178 skb_reserve(skb, local->hw.extra_tx_headroom);
3179
3180 nullfunc = (void *) skb_put(skb, size);
3181 nullfunc->frame_control = fc;
3182 nullfunc->duration_id = 0;
3183 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3184 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3185 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3186 nullfunc->seq_ctrl = 0;
3187
3188 info = IEEE80211_SKB_CB(skb);
3189
3190 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3191 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
73c4e195 3192 info->band = band;
06500736
JB		 3193
3194 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3195 skb->priority = 7;
3196 if (qos)
3197 nullfunc->qos_ctrl = cpu_to_le16(7);
3198
5ee00dbd
JB		 3199 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3200 if (ret) {
3b79af97 3201 kfree_skb(skb);
3b79af97
JB		 3202 goto unlock;
3203 }
3204
06500736 3205 local_bh_disable();
7c10770f 3206 ieee80211_xmit(sdata, sta, skb);
06500736 3207 local_bh_enable();
3b79af97
JB		 3208
3209 ret = 0;
3210unlock:
55de908a 3211 rcu_read_unlock();
3b79af97 3212 mutex_unlock(&local->mtx);
06500736 3213
3b79af97 3214 return ret;
06500736
JB		 3215}
3216
683b6d3b
JB		 3217static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3218 struct wireless_dev *wdev,
3219 struct cfg80211_chan_def *chandef)
5b7ccaf3 3220{
55de908a 3221 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3222 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3223 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3224 int ret = -ENODATA;
55de908a
JB		 3225
3226 rcu_read_lock();
feda3027
JB		 3227 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3228 if (chanctx_conf) {
c12bc488 3229 *chandef = sdata->vif.bss_conf.chandef;
feda3027
JB		 3230 ret = 0;
3231 } else if (local->open_count > 0 &&
3232 local->open_count == local->monitors &&
3233 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3234 if (local->use_chanctx)
3235 *chandef = local->monitor_chandef;
3236 else
675a0b04 3237 *chandef = local->_oper_chandef;
683b6d3b 3238 ret = 0;
55de908a
JB		 3239 }
3240 rcu_read_unlock();
5b7ccaf3 3241
683b6d3b 3242 return ret;
5b7ccaf3
JB		 3243}
3244
6d52563f
JB		 3245#ifdef CONFIG_PM
3246static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3247{
3248 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3249}
3250#endif
3251
32db6b54
KP		 3252static int ieee80211_set_qos_map(struct wiphy *wiphy,
3253 struct net_device *dev,
3254 struct cfg80211_qos_map *qos_map)
3255{
3256 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3257 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3258
3259 if (qos_map) {
3260 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3261 if (!new_qos_map)
3262 return -ENOMEM;
3263 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3264 } else {
3265 /* A NULL qos_map was passed to disable QoS mapping */
3266 new_qos_map = NULL;
3267 }
3268
194ff52d 3269 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3270 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3271 if (old_qos_map)
3272 kfree_rcu(old_qos_map, rcu_head);
3273
3274 return 0;
3275}
3276
3b1700bd
JM		 3277static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3278 struct net_device *dev,
3279 struct cfg80211_chan_def *chandef)
3280{
3281 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3282 int ret;
3283 u32 changed = 0;
3284
3285 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3286 if (ret == 0)
3287 ieee80211_bss_info_change_notify(sdata, changed);
3288
3289 return ret;
3290}
3291
02219b3a
JB		 3292static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3293 u8 tsid, const u8 *peer, u8 up,
3294 u16 admitted_time)
3295{
3296 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3297 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3298 int ac = ieee802_1d_to_ac[up];
3299
3300 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3301 return -EOPNOTSUPP;
3302
3303 if (!(sdata->wmm_acm & BIT(up)))
3304 return -EINVAL;
3305
3306 if (ifmgd->tx_tspec[ac].admitted_time)
3307 return -EBUSY;
3308
3309 if (admitted_time) {
3310 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3311 ifmgd->tx_tspec[ac].tsid = tsid;
3312 ifmgd->tx_tspec[ac].up = up;
3313 }
3314
3315 return 0;
3316}
3317
3318static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3319 u8 tsid, const u8 *peer)
3320{
3321 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3322 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3323 struct ieee80211_local *local = wiphy_priv(wiphy);
3324 int ac;
3325
3326 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3327 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3328
3329 /* skip unused entries */
3330 if (!tx_tspec->admitted_time)
3331 continue;
3332
3333 if (tx_tspec->tsid != tsid)
3334 continue;
3335
3336 /* due to this new packets will be reassigned to non-ACM ACs */
3337 tx_tspec->up = -1;
3338
3339 /* Make sure that all packets have been sent to avoid to
3340 * restore the QoS params on packets that are still on the
3341 * queues.
3342 */
3343 synchronize_net();
3b24f4c6 3344 ieee80211_flush_queues(local, sdata, false);
02219b3a
JB		 3345
3346 /* restore the normal QoS parameters
3347 * (unconditionally to avoid races)
3348 */
3349 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3350 tx_tspec->downgraded = false;
3351 ieee80211_sta_handle_tspec_ac_params(sdata);
3352
3353 /* finally clear all the data */
3354 memset(tx_tspec, 0, sizeof(*tx_tspec));
3355
3356 return 0;
3357 }
3358
3359 return -ENOENT;
3360}
3361
8a47cea7 3362const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3363 .add_virtual_intf = ieee80211_add_iface,
3364 .del_virtual_intf = ieee80211_del_iface,
42613db7 3365 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3366 .start_p2p_device = ieee80211_start_p2p_device,
3367 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3368 .add_key = ieee80211_add_key,
3369 .del_key = ieee80211_del_key,
62da92fb 3370 .get_key = ieee80211_get_key,
e8cbb4cb 3371 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3372 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3373 .start_ap = ieee80211_start_ap,
3374 .change_beacon = ieee80211_change_beacon,
3375 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3376 .add_station = ieee80211_add_station,
3377 .del_station = ieee80211_del_station,
3378 .change_station = ieee80211_change_station,
7bbdd2d9 3379 .get_station = ieee80211_get_station,
c5dd9c2b 3380 .dump_station = ieee80211_dump_station,
1289723e 3381 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3382#ifdef CONFIG_MAC80211_MESH
3383 .add_mpath = ieee80211_add_mpath,
3384 .del_mpath = ieee80211_del_mpath,
3385 .change_mpath = ieee80211_change_mpath,
3386 .get_mpath = ieee80211_get_mpath,
3387 .dump_mpath = ieee80211_dump_mpath,
a2db2ed3
HR		 3388 .get_mpp = ieee80211_get_mpp,
3389 .dump_mpp = ieee80211_dump_mpp,
24bdd9f4
JC		 3390 .update_mesh_config = ieee80211_update_mesh_config,
3391 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3392 .join_mesh = ieee80211_join_mesh,
3393 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3394#endif
239281f8
RL		 3395 .join_ocb = ieee80211_join_ocb,
3396 .leave_ocb = ieee80211_leave_ocb,
9f1ba906 3397 .change_bss = ieee80211_change_bss,
31888487 3398 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3399 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3400 .suspend = ieee80211_suspend,
3401 .resume = ieee80211_resume,
2a519311 3402 .scan = ieee80211_scan,
91f123f2 3403 .abort_scan = ieee80211_abort_scan,
79f460ca
LC		 3404 .sched_scan_start = ieee80211_sched_scan_start,
3405 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3406 .auth = ieee80211_auth,
3407 .assoc = ieee80211_assoc,
3408 .deauth = ieee80211_deauth,
3409 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3410 .join_ibss = ieee80211_join_ibss,
3411 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3412 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3413 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3414 .set_tx_power = ieee80211_set_tx_power,
3415 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3416 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3417 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3418 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3419 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3420 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3421 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3422 .remain_on_channel = ieee80211_remain_on_channel,
3423 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3424 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3425 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3426 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3427 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3428 .set_antenna = ieee80211_set_antenna,
3429 .get_antenna = ieee80211_get_antenna,
c68f4b89 3430 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3431 .tdls_oper = ieee80211_tdls_oper,
3432 .tdls_mgmt = ieee80211_tdls_mgmt,
a7a6bdd0
AN		 3433 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3434 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
06500736 3435 .probe_client = ieee80211_probe_client,
b53be792 3436 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3437#ifdef CONFIG_PM
3438 .set_wakeup = ieee80211_set_wakeup,
3439#endif
5b7ccaf3 3440 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3441 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3442 .channel_switch = ieee80211_channel_switch,
32db6b54 3443 .set_qos_map = ieee80211_set_qos_map,
3b1700bd 3444 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
02219b3a
JB		 3445 .add_tx_ts = ieee80211_add_tx_ts,
3446 .del_tx_ts = ieee80211_del_tx_ts,
f0706e82 3447};
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