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cfg80211: Provide an API to report NAN function termination
[mirror_ubuntu-artful-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
708d50ed 6 * Copyright (C) 2015-2016 Intel Deutschland GmbH
f0706e82
JB		 7 *
8 * This file is GPLv2 as found in COPYING.
9 */
10
e8cbb4cb 11#include <linux/ieee80211.h>
f0706e82
JB		 12#include <linux/nl80211.h>
13#include <linux/rtnetlink.h>
5a0e3ad6 14#include <linux/slab.h>
881d966b 15#include <net/net_namespace.h>
5dfdaf58 16#include <linux/rcupdate.h>
dfe018bf 17#include <linux/if_ether.h>
f0706e82
JB		 18#include <net/cfg80211.h>
19#include "ieee80211_i.h"
24487981 20#include "driver-ops.h"
2c8dccc7 21#include "rate.h"
c5dd9c2b 22#include "mesh.h"
02219b3a 23#include "wme.h"
c5dd9c2b 24
552bff0c
JB		 25static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
26 const char *name,
6bab2e19 27 unsigned char name_assign_type,
84efbb84
JB		 28 enum nl80211_iftype type,
29 u32 *flags,
30 struct vif_params *params)
f0706e82
JB		 31{
32 struct ieee80211_local *local = wiphy_priv(wiphy);
84efbb84 33 struct wireless_dev *wdev;
8cc9a739
MW		 34 struct ieee80211_sub_if_data *sdata;
35 int err;
f0706e82 36
6bab2e19 37 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
f9e10ce4
JB		 38 if (err)
39 return ERR_PTR(err);
8cc9a739 40
f9e10ce4 41 if (type == NL80211_IFTYPE_MONITOR && flags) {
84efbb84 42 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
d8212184 43 sdata->u.mntr.flags = *flags;
f9e10ce4
JB		 44 }
45
84efbb84 46 return wdev;
f0706e82
JB		 47}
48
84efbb84 49static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
f0706e82 50{
84efbb84 51 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
f0706e82 52
75636525 53 return 0;
f0706e82
JB		 54}
55
e36d56b6
JB		 56static int ieee80211_change_iface(struct wiphy *wiphy,
57 struct net_device *dev,
2ec600d6
LCC		 58 enum nl80211_iftype type, u32 *flags,
59 struct vif_params *params)
42613db7 60{
9607e6b6 61 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 62 int ret;
42613db7 63
05c914fe 64 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 65 if (ret)
66 return ret;
42613db7 67
9bc383de 68 if (type == NL80211_IFTYPE_AP_VLAN &&
49ddf8e6 69 params && params->use_4addr == 0) {
a9b3cd7f 70 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
49ddf8e6
JB		 71 ieee80211_check_fast_rx_iface(sdata);
72 } else if (type == NL80211_IFTYPE_STATION &&
73 params && params->use_4addr >= 0) {
9bc383de 74 sdata->u.mgd.use_4addr = params->use_4addr;
49ddf8e6 75 }
9bc383de 76
42bd20d9 77 if (sdata->vif.type == NL80211_IFTYPE_MONITOR) {
85416a4f 78 struct ieee80211_local *local = sdata->local;
42bd20d9
AE		 79 struct ieee80211_sub_if_data *monitor_sdata;
80 u32 mu_mntr_cap_flag = NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER;
81
82 monitor_sdata = rtnl_dereference(local->monitor_sdata);
83 if (monitor_sdata &&
84 wiphy_ext_feature_isset(wiphy, mu_mntr_cap_flag)) {
85 memcpy(monitor_sdata->vif.bss_conf.mu_group.membership,
86 params->vht_mumimo_groups, WLAN_MEMBERSHIP_LEN);
87 memcpy(monitor_sdata->vif.bss_conf.mu_group.position,
88 params->vht_mumimo_groups + WLAN_MEMBERSHIP_LEN,
89 WLAN_USER_POSITION_LEN);
90 monitor_sdata->vif.mu_mimo_owner = true;
91 ieee80211_bss_info_change_notify(monitor_sdata,
92 BSS_CHANGED_MU_GROUPS);
93
94 ether_addr_copy(monitor_sdata->u.mntr.mu_follow_addr,
95 params->macaddr);
96 }
97
98 if (!flags)
99 return 0;
85416a4f
CL		 100
101 if (ieee80211_sdata_running(sdata)) {
31eba5bc
FF		 102 u32 mask = MONITOR_FLAG_COOK_FRAMES |
103 MONITOR_FLAG_ACTIVE;
104
85416a4f 105 /*
31eba5bc
FF		 106 * Prohibit MONITOR_FLAG_COOK_FRAMES and
107 * MONITOR_FLAG_ACTIVE to be changed while the
108 * interface is up.
85416a4f
CL		 109 * Else we would need to add a lot of cruft
110 * to update everything:
111 * cooked_mntrs, monitor and all fif_* counters
112 * reconfigure hardware
113 */
d8212184 114 if ((*flags & mask) != (sdata->u.mntr.flags & mask))
85416a4f
CL		 115 return -EBUSY;
116
117 ieee80211_adjust_monitor_flags(sdata, -1);
d8212184 118 sdata->u.mntr.flags = *flags;
85416a4f
CL		 119 ieee80211_adjust_monitor_flags(sdata, 1);
120
121 ieee80211_configure_filter(local);
122 } else {
123 /*
124 * Because the interface is down, ieee80211_do_stop
125 * and ieee80211_do_open take care of "everything"
126 * mentioned in the comment above.
127 */
d8212184 128 sdata->u.mntr.flags = *flags;
85416a4f
CL		 129 }
130 }
f7917af9 131
42613db7
JB		 132 return 0;
133}
134
f142c6b9
JB		 135static int ieee80211_start_p2p_device(struct wiphy *wiphy,
136 struct wireless_dev *wdev)
137{
b6a55015
LC		 138 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
139 int ret;
140
141 mutex_lock(&sdata->local->chanctx_mtx);
142 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
143 mutex_unlock(&sdata->local->chanctx_mtx);
144 if (ret < 0)
145 return ret;
146
f142c6b9
JB		 147 return ieee80211_do_open(wdev, true);
148}
149
150static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
151 struct wireless_dev *wdev)
152{
153 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
154}
155
708d50ed
AB		 156static int ieee80211_start_nan(struct wiphy *wiphy,
157 struct wireless_dev *wdev,
158 struct cfg80211_nan_conf *conf)
159{
160 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
161 int ret;
162
163 mutex_lock(&sdata->local->chanctx_mtx);
164 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
165 mutex_unlock(&sdata->local->chanctx_mtx);
166 if (ret < 0)
167 return ret;
168
169 ret = ieee80211_do_open(wdev, true);
170 if (ret)
171 return ret;
172
173 ret = drv_start_nan(sdata->local, sdata, conf);
174 if (ret)
175 ieee80211_sdata_stop(sdata);
176
177 return ret;
178}
179
180static void ieee80211_stop_nan(struct wiphy *wiphy,
181 struct wireless_dev *wdev)
182{
183 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
184
185 drv_stop_nan(sdata->local, sdata);
186 ieee80211_sdata_stop(sdata);
187}
188
b53be792
SW		 189static int ieee80211_set_noack_map(struct wiphy *wiphy,
190 struct net_device *dev,
191 u16 noack_map)
192{
193 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
194
195 sdata->noack_map = noack_map;
17c18bf8
JB		 196
197 ieee80211_check_fast_xmit_iface(sdata);
198
b53be792
SW		 199 return 0;
200}
201
e8cbb4cb 202static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 203 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 204 struct key_params *params)
205{
26a58456 206 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2475b1cc 207 struct ieee80211_local *local = sdata->local;
e8cbb4cb 208 struct sta_info *sta = NULL;
2475b1cc 209 const struct ieee80211_cipher_scheme *cs = NULL;
db4d1169 210 struct ieee80211_key *key;
3b96766f 211 int err;
e8cbb4cb 212
26a58456 213 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 214 return -ENETDOWN;
215
97359d12 216 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 217 switch (params->cipher) {
218 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 219 case WLAN_CIPHER_SUITE_TKIP:
97359d12 220 case WLAN_CIPHER_SUITE_WEP104:
2475b1cc 221 if (IS_ERR(local->wep_tx_tfm))
97359d12 222 return -EINVAL;
3cfcf6ac 223 break;
2475b1cc 224 case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db 225 case WLAN_CIPHER_SUITE_CCMP_256:
2475b1cc 226 case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2 227 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
8ade538b
JM		 228 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
229 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2475b1cc 230 case WLAN_CIPHER_SUITE_GCMP:
00b9cfa3 231 case WLAN_CIPHER_SUITE_GCMP_256:
2475b1cc 232 break;
e8cbb4cb 233 default:
2475b1cc 234 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
97359d12 235 break;
e8cbb4cb
JB		 236 }
237
97359d12 238 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
2475b1cc
MS		 239 params->key, params->seq_len, params->seq,
240 cs);
1ac62ba7
BH		 241 if (IS_ERR(key))
242 return PTR_ERR(key);
db4d1169 243
e31b8213
JB		 244 if (pairwise)
245 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
246
2475b1cc 247 mutex_lock(&local->sta_mtx);
3b96766f 248
e8cbb4cb 249 if (mac_addr) {
ff973af7
TP		 250 if (ieee80211_vif_is_mesh(&sdata->vif))
251 sta = sta_info_get(sdata, mac_addr);
252 else
253 sta = sta_info_get_bss(sdata, mac_addr);
1626e0fa
JB		 254 /*
255 * The ASSOC test makes sure the driver is ready to
256 * receive the key. When wpa_supplicant has roamed
257 * using FT, it attempts to set the key before
258 * association has completed, this rejects that attempt
d070f913 259 * so it will set the key again after association.
1626e0fa
JB		 260 *
261 * TODO: accept the key if we have a station entry and
262 * add it to the device after the station.
263 */
264 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
79cf2dfa 265 ieee80211_key_free_unused(key);
3b96766f
JB		 266 err = -ENOENT;
267 goto out_unlock;
db4d1169 268 }
e8cbb4cb
JB		 269 }
270
e548c49e
JB		 271 switch (sdata->vif.type) {
272 case NL80211_IFTYPE_STATION:
273 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
274 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
275 break;
276 case NL80211_IFTYPE_AP:
277 case NL80211_IFTYPE_AP_VLAN:
278 /* Keys without a station are used for TX only */
279 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
280 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
281 break;
282 case NL80211_IFTYPE_ADHOC:
283 /* no MFP (yet) */
284 break;
285 case NL80211_IFTYPE_MESH_POINT:
286#ifdef CONFIG_MAC80211_MESH
287 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
288 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
289 break;
290#endif
291 case NL80211_IFTYPE_WDS:
292 case NL80211_IFTYPE_MONITOR:
293 case NL80211_IFTYPE_P2P_DEVICE:
cb3b7d87 294 case NL80211_IFTYPE_NAN:
e548c49e
JB		 295 case NL80211_IFTYPE_UNSPECIFIED:
296 case NUM_NL80211_IFTYPES:
297 case NL80211_IFTYPE_P2P_CLIENT:
298 case NL80211_IFTYPE_P2P_GO:
6e0bd6c3 299 case NL80211_IFTYPE_OCB:
e548c49e
JB		 300 /* shouldn't happen */
301 WARN_ON_ONCE(1);
302 break;
303 }
304
2475b1cc
MS		 305 if (sta)
306 sta->cipher_scheme = cs;
307
3ffc2a90 308 err = ieee80211_key_link(key, sdata, sta);
db4d1169 309
3b96766f 310 out_unlock:
2475b1cc 311 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 312
313 return err;
e8cbb4cb
JB		 314}
315
316static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 317 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 318{
5c0c3641
JB		 319 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
320 struct ieee80211_local *local = sdata->local;
e8cbb4cb 321 struct sta_info *sta;
5c0c3641 322 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 323 int ret;
324
5c0c3641
JB		 325 mutex_lock(&local->sta_mtx);
326 mutex_lock(&local->key_mtx);
3b96766f 327
e8cbb4cb 328 if (mac_addr) {
3b96766f
JB		 329 ret = -ENOENT;
330
0e5ded5a 331 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 332 if (!sta)
3b96766f 333 goto out_unlock;
e8cbb4cb 334
5c0c3641 335 if (pairwise)
2475b1cc 336 key = key_mtx_dereference(local, sta->ptk[key_idx]);
5c0c3641 337 else
40b275b6 338 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 339 } else
40b275b6 340 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 341
5c0c3641 342 if (!key) {
3b96766f
JB		 343 ret = -ENOENT;
344 goto out_unlock;
345 }
e8cbb4cb 346
3b8d9c29 347 ieee80211_key_free(key, true);
e8cbb4cb 348
3b96766f
JB		 349 ret = 0;
350 out_unlock:
5c0c3641
JB		 351 mutex_unlock(&local->key_mtx);
352 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 353
354 return ret;
e8cbb4cb
JB		 355}
356
62da92fb 357static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 358 u8 key_idx, bool pairwise, const u8 *mac_addr,
359 void *cookie,
62da92fb
JB		 360 void (*callback)(void *cookie,
361 struct key_params *params))
362{
14db74bc 363 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 364 struct sta_info *sta = NULL;
365 u8 seq[6] = {0};
366 struct key_params params;
e31b8213 367 struct ieee80211_key *key = NULL;
aba83a0b 368 u64 pn64;
62da92fb
JB		 369 u32 iv32;
370 u16 iv16;
371 int err = -ENOENT;
9352c19f 372 struct ieee80211_key_seq kseq = {};
62da92fb 373
14db74bc
JB		 374 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
375
3b96766f
JB		 376 rcu_read_lock();
377
62da92fb 378 if (mac_addr) {
0e5ded5a 379 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 380 if (!sta)
381 goto out;
382
354e159d 383 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
2475b1cc 384 key = rcu_dereference(sta->ptk[key_idx]);
31f1f4ec
MS		 385 else if (!pairwise &&
386 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
a3836e02 387 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 388 } else
a3836e02 389 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 390
391 if (!key)
392 goto out;
393
394 memset(&params, 0, sizeof(params));
395
97359d12 396 params.cipher = key->conf.cipher;
62da92fb 397
97359d12
JB		 398 switch (key->conf.cipher) {
399 case WLAN_CIPHER_SUITE_TKIP:
f8079d43
EP		 400 pn64 = atomic64_read(&key->conf.tx_pn);
401 iv32 = TKIP_PN_TO_IV32(pn64);
402 iv16 = TKIP_PN_TO_IV16(pn64);
62da92fb 403
9352c19f
JB		 404 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
405 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
406 drv_get_key_seq(sdata->local, key, &kseq);
407 iv32 = kseq.tkip.iv32;
408 iv16 = kseq.tkip.iv16;
409 }
62da92fb
JB		 410
411 seq[0] = iv16 & 0xff;
412 seq[1] = (iv16 >> 8) & 0xff;
413 seq[2] = iv32 & 0xff;
414 seq[3] = (iv32 >> 8) & 0xff;
415 seq[4] = (iv32 >> 16) & 0xff;
416 seq[5] = (iv32 >> 24) & 0xff;
417 params.seq = seq;
418 params.seq_len = 6;
419 break;
97359d12 420 case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db 421 case WLAN_CIPHER_SUITE_CCMP_256:
97359d12 422 case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2 423 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
db388a56
JB		 424 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
425 offsetof(typeof(kseq), aes_cmac));
8ade538b
JM		 426 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
427 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
db388a56
JB		 428 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
429 offsetof(typeof(kseq), aes_gmac));
00b9cfa3
JM		 430 case WLAN_CIPHER_SUITE_GCMP:
431 case WLAN_CIPHER_SUITE_GCMP_256:
db388a56
JB		 432 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
433 offsetof(typeof(kseq), gcmp));
434
9352c19f
JB		 435 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
436 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
437 drv_get_key_seq(sdata->local, key, &kseq);
db388a56 438 memcpy(seq, kseq.ccmp.pn, 6);
9352c19f 439 } else {
db388a56 440 pn64 = atomic64_read(&key->conf.tx_pn);
9352c19f
JB		 441 seq[0] = pn64;
442 seq[1] = pn64 >> 8;
443 seq[2] = pn64 >> 16;
444 seq[3] = pn64 >> 24;
445 seq[4] = pn64 >> 32;
446 seq[5] = pn64 >> 40;
447 }
00b9cfa3
JM		 448 params.seq = seq;
449 params.seq_len = 6;
450 break;
a31cf1c6
JB		 451 default:
452 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
453 break;
454 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
455 break;
456 drv_get_key_seq(sdata->local, key, &kseq);
457 params.seq = kseq.hw.seq;
458 params.seq_len = kseq.hw.seq_len;
459 break;
62da92fb
JB		 460 }
461
462 params.key = key->conf.key;
463 params.key_len = key->conf.keylen;
464
465 callback(cookie, &params);
466 err = 0;
467
468 out:
3b96766f 469 rcu_read_unlock();
62da92fb
JB		 470 return err;
471}
472
e8cbb4cb
JB		 473static int ieee80211_config_default_key(struct wiphy *wiphy,
474 struct net_device *dev,
dbd2fd65
JB		 475 u8 key_idx, bool uni,
476 bool multi)
e8cbb4cb 477{
ad0e2b5a 478 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 479
f7e0104c 480 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 481
482 return 0;
483}
484
3cfcf6ac
JM		 485static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
486 struct net_device *dev,
487 u8 key_idx)
488{
66c52421 489 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 490
3cfcf6ac
JM		 491 ieee80211_set_default_mgmt_key(sdata, key_idx);
492
3cfcf6ac
JM		 493 return 0;
494}
495
6b62bf32
TP		 496void sta_set_rate_info_tx(struct sta_info *sta,
497 const struct ieee80211_tx_rate *rate,
498 struct rate_info *rinfo)
499{
500 rinfo->flags = 0;
8bc83c24 501 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 502 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 503 rinfo->mcs = rate->idx;
504 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
505 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
506 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
507 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
508 } else {
509 struct ieee80211_supported_band *sband;
2103dec1
SW		 510 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
511 u16 brate;
512
8bc83c24
JB		 513 sband = sta->local->hw.wiphy->bands[
514 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 515 brate = sband->bitrates[rate->idx].bitrate;
516 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
8bc83c24 517 }
6b62bf32 518 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
b51f3bee
JB		 519 rinfo->bw = RATE_INFO_BW_40;
520 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
521 rinfo->bw = RATE_INFO_BW_80;
522 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
523 rinfo->bw = RATE_INFO_BW_160;
524 else
525 rinfo->bw = RATE_INFO_BW_20;
6b62bf32
TP		 526 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
527 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 528}
529
c5dd9c2b 530static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 531 int idx, u8 *mac, struct station_info *sinfo)
c5dd9c2b 532{
3b53fde8 533 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 534 struct ieee80211_local *local = sdata->local;
c5dd9c2b 535 struct sta_info *sta;
d0709a65
JB		 536 int ret = -ENOENT;
537
66572cfc 538 mutex_lock(&local->sta_mtx);
c5dd9c2b 539
3b53fde8 540 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 541 if (sta) {
542 ret = 0;
17741cdc 543 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 544 sta_set_sinfo(sta, sinfo);
545 }
c5dd9c2b 546
66572cfc 547 mutex_unlock(&local->sta_mtx);
c5dd9c2b 548
d0709a65 549 return ret;
c5dd9c2b
LCC		 550}
551
1289723e
HS		 552static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
553 int idx, struct survey_info *survey)
554{
555 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
556
1289723e
HS		 557 return drv_get_survey(local, idx, survey);
558}
559
7bbdd2d9 560static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 561 const u8 *mac, struct station_info *sinfo)
7bbdd2d9 562{
abe60632 563 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 564 struct ieee80211_local *local = sdata->local;
7bbdd2d9 565 struct sta_info *sta;
d0709a65 566 int ret = -ENOENT;
7bbdd2d9 567
66572cfc 568 mutex_lock(&local->sta_mtx);
7bbdd2d9 569
0e5ded5a 570 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 571 if (sta) {
572 ret = 0;
573 sta_set_sinfo(sta, sinfo);
574 }
575
66572cfc 576 mutex_unlock(&local->sta_mtx);
d0709a65
JB		 577
578 return ret;
7bbdd2d9
JB		 579}
580
55de908a 581static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
683b6d3b 582 struct cfg80211_chan_def *chandef)
3d9e6e12
JB		 583{
584 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a
JB		 585 struct ieee80211_sub_if_data *sdata;
586 int ret = 0;
3d9e6e12 587
4bf88530 588 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
55de908a 589 return 0;
3d9e6e12 590
34a3740d 591 mutex_lock(&local->mtx);
55de908a
JB		 592 mutex_lock(&local->iflist_mtx);
593 if (local->use_chanctx) {
594 sdata = rcu_dereference_protected(
595 local->monitor_sdata,
596 lockdep_is_held(&local->iflist_mtx));
597 if (sdata) {
598 ieee80211_vif_release_channel(sdata);
4bf88530 599 ret = ieee80211_vif_use_channel(sdata, chandef,
55de908a
JB		 600 IEEE80211_CHANCTX_EXCLUSIVE);
601 }
602 } else if (local->open_count == local->monitors) {
675a0b04 603 local->_oper_chandef = *chandef;
55de908a
JB		 604 ieee80211_hw_config(local, 0);
605 }
3d9e6e12 606
4bf88530
JB		 607 if (ret == 0)
608 local->monitor_chandef = *chandef;
55de908a 609 mutex_unlock(&local->iflist_mtx);
34a3740d 610 mutex_unlock(&local->mtx);
3d9e6e12 611
55de908a 612 return ret;
e8c9bd5b
JB		 613}
614
02945821 615static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 616 const u8 *resp, size_t resp_len,
617 const struct ieee80211_csa_settings *csa)
02945821 618{
aa7a0080 619 struct probe_resp *new, *old;
02945821
AN		 620
621 if (!resp || !resp_len)
aba4e6ff 622 return 1;
02945821 623
7ca133bc 624 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
02945821 625
aa7a0080 626 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
02945821
AN		 627 if (!new)
628 return -ENOMEM;
629
aa7a0080
ES		 630 new->len = resp_len;
631 memcpy(new->data, resp, resp_len);
02945821 632
af296bdb
MK		 633 if (csa)
634 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
635 csa->n_counter_offsets_presp *
636 sizeof(new->csa_counter_offsets[0]));
637
02945821 638 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
aa7a0080
ES		 639 if (old)
640 kfree_rcu(old, rcu_head);
02945821
AN		 641
642 return 0;
643}
644
0ae07968 645static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 646 struct cfg80211_beacon_data *params,
647 const struct ieee80211_csa_settings *csa)
5dfdaf58
JB		 648{
649 struct beacon_data *new, *old;
650 int new_head_len, new_tail_len;
8860020e
JB		 651 int size, err;
652 u32 changed = BSS_CHANGED_BEACON;
5dfdaf58 653
7ca133bc
SW		 654 old = sdata_dereference(sdata->u.ap.beacon, sdata);
655
5dfdaf58 656
5dfdaf58
JB		 657 /* Need to have a beacon head if we don't have one yet */
658 if (!params->head && !old)
8860020e 659 return -EINVAL;
5dfdaf58
JB		 660
661 /* new or old head? */
662 if (params->head)
663 new_head_len = params->head_len;
664 else
665 new_head_len = old->head_len;
666
667 /* new or old tail? */
668 if (params->tail || !old)
669 /* params->tail_len will be zero for !params->tail */
670 new_tail_len = params->tail_len;
671 else
672 new_tail_len = old->tail_len;
673
674 size = sizeof(*new) + new_head_len + new_tail_len;
675
676 new = kzalloc(size, GFP_KERNEL);
677 if (!new)
678 return -ENOMEM;
679
680 /* start filling the new info now */
681
5dfdaf58
JB		 682 /*
683 * pointers go into the block we allocated,
684 * memory is | beacon_data | head | tail |
685 */
686 new->head = ((u8 *) new) + sizeof(*new);
687 new->tail = new->head + new_head_len;
688 new->head_len = new_head_len;
689 new->tail_len = new_tail_len;
690
af296bdb
MK		 691 if (csa) {
692 new->csa_current_counter = csa->count;
693 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
694 csa->n_counter_offsets_beacon *
695 sizeof(new->csa_counter_offsets[0]));
696 }
697
5dfdaf58
JB		 698 /* copy in head */
699 if (params->head)
700 memcpy(new->head, params->head, new_head_len);
701 else
702 memcpy(new->head, old->head, new_head_len);
703
704 /* copy in optional tail */
705 if (params->tail)
706 memcpy(new->tail, params->tail, new_tail_len);
707 else
708 if (old)
709 memcpy(new->tail, old->tail, new_tail_len);
710
02945821 711 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
af296bdb 712 params->probe_resp_len, csa);
8860020e
JB		 713 if (err < 0)
714 return err;
715 if (err == 0)
02945821
AN		 716 changed |= BSS_CHANGED_AP_PROBE_RESP;
717
8860020e
JB		 718 rcu_assign_pointer(sdata->u.ap.beacon, new);
719
720 if (old)
721 kfree_rcu(old, rcu_head);
7827493b 722
8860020e 723 return changed;
5dfdaf58
JB		 724}
725
8860020e
JB		 726static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
727 struct cfg80211_ap_settings *params)
5dfdaf58 728{
8860020e 729 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
34a3740d 730 struct ieee80211_local *local = sdata->local;
5dfdaf58 731 struct beacon_data *old;
665c93a9 732 struct ieee80211_sub_if_data *vlan;
8860020e
JB		 733 u32 changed = BSS_CHANGED_BEACON_INT |
734 BSS_CHANGED_BEACON_ENABLED |
735 BSS_CHANGED_BEACON |
339afbf4 736 BSS_CHANGED_SSID |
4bcc56bb
JB		 737 BSS_CHANGED_P2P_PS |
738 BSS_CHANGED_TXPOWER;
8860020e 739 int err;
14db74bc 740
7ca133bc 741 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 742 if (old)
743 return -EALREADY;
744
f6993174
EP		 745 switch (params->smps_mode) {
746 case NL80211_SMPS_OFF:
747 sdata->smps_mode = IEEE80211_SMPS_OFF;
748 break;
749 case NL80211_SMPS_STATIC:
750 sdata->smps_mode = IEEE80211_SMPS_STATIC;
751 break;
752 case NL80211_SMPS_DYNAMIC:
753 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
754 break;
755 default:
756 return -EINVAL;
757 }
04ecd257
JB		 758 sdata->needed_rx_chains = sdata->local->rx_chains;
759
34a3740d 760 mutex_lock(&local->mtx);
4bf88530 761 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 762 IEEE80211_CHANCTX_SHARED);
4e141dad
MK		 763 if (!err)
764 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
34a3740d 765 mutex_unlock(&local->mtx);
aa430da4
JB		 766 if (err)
767 return err;
768
665c93a9
JB		 769 /*
770 * Apply control port protocol, this allows us to
771 * not encrypt dynamic WEP control frames.
772 */
773 sdata->control_port_protocol = params->crypto.control_port_ethertype;
774 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
2475b1cc
MS		 775 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
776 &params->crypto,
777 sdata->vif.type);
778
665c93a9
JB		 779 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
780 vlan->control_port_protocol =
781 params->crypto.control_port_ethertype;
782 vlan->control_port_no_encrypt =
783 params->crypto.control_port_no_encrypt;
2475b1cc
MS		 784 vlan->encrypt_headroom =
785 ieee80211_cs_headroom(sdata->local,
786 &params->crypto,
787 vlan->vif.type);
665c93a9
JB		 788 }
789
8860020e
JB		 790 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
791 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 792 sdata->vif.bss_conf.enable_beacon = true;
52cfa1d6 793 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
8860020e
JB		 794
795 sdata->vif.bss_conf.ssid_len = params->ssid_len;
796 if (params->ssid_len)
797 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
798 params->ssid_len);
799 sdata->vif.bss_conf.hidden_ssid =
800 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
801
67baf663
JD		 802 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
803 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
804 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
805 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
806 if (params->p2p_opp_ps)
807 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
808 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 809
af296bdb 810 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
0297ea17
EG		 811 if (err < 0) {
812 ieee80211_vif_release_channel(sdata);
8860020e 813 return err;
0297ea17 814 }
8860020e
JB		 815 changed |= err;
816
1041638f
JB		 817 err = drv_start_ap(sdata->local, sdata);
818 if (err) {
7ca133bc
SW		 819 old = sdata_dereference(sdata->u.ap.beacon, sdata);
820
1041638f
JB		 821 if (old)
822 kfree_rcu(old, rcu_head);
823 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
0297ea17 824 ieee80211_vif_release_channel(sdata);
1041638f
JB		 825 return err;
826 }
827
057d5f4b 828 ieee80211_recalc_dtim(local, sdata);
8860020e
JB		 829 ieee80211_bss_info_change_notify(sdata, changed);
830
3edaf3e6
JB		 831 netif_carrier_on(dev);
832 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
833 netif_carrier_on(vlan->dev);
834
665c93a9 835 return 0;
5dfdaf58
JB		 836}
837
8860020e
JB		 838static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
839 struct cfg80211_beacon_data *params)
5dfdaf58 840{
14db74bc 841 struct ieee80211_sub_if_data *sdata;
5dfdaf58 842 struct beacon_data *old;
8860020e 843 int err;
5dfdaf58 844
14db74bc 845 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
dbd72850 846 sdata_assert_lock(sdata);
14db74bc 847
73da7d5b
SW		 848 /* don't allow changing the beacon while CSA is in place - offset
849 * of channel switch counter may change
850 */
851 if (sdata->vif.csa_active)
852 return -EBUSY;
853
7ca133bc 854 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 855 if (!old)
856 return -ENOENT;
857
af296bdb 858 err = ieee80211_assign_beacon(sdata, params, NULL);
8860020e
JB		 859 if (err < 0)
860 return err;
861 ieee80211_bss_info_change_notify(sdata, err);
862 return 0;
5dfdaf58
JB		 863}
864
8860020e 865static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 866{
7b20b8e8
JB		 867 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
868 struct ieee80211_sub_if_data *vlan;
869 struct ieee80211_local *local = sdata->local;
870 struct beacon_data *old_beacon;
871 struct probe_resp *old_probe_resp;
d2859df5 872 struct cfg80211_chan_def chandef;
14db74bc 873
dbd72850
MK		 874 sdata_assert_lock(sdata);
875
7ca133bc 876 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 877 if (!old_beacon)
5dfdaf58 878 return -ENOENT;
7ca133bc 879 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 880
73da7d5b 881 /* abort any running channel switch */
59af6928 882 mutex_lock(&local->mtx);
73da7d5b 883 sdata->vif.csa_active = false;
a46992b4
LC		 884 if (sdata->csa_block_tx) {
885 ieee80211_wake_vif_queues(local, sdata,
886 IEEE80211_QUEUE_STOP_REASON_CSA);
887 sdata->csa_block_tx = false;
888 }
889
59af6928
MK		 890 mutex_unlock(&local->mtx);
891
1f3b8a2b
SW		 892 kfree(sdata->u.ap.next_beacon);
893 sdata->u.ap.next_beacon = NULL;
894
7b20b8e8 895 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 896 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
897 netif_carrier_off(vlan->dev);
898 netif_carrier_off(dev);
899
7b20b8e8 900 /* remove beacon and probe response */
a9b3cd7f 901 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 902 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
903 kfree_rcu(old_beacon, rcu_head);
904 if (old_probe_resp)
905 kfree_rcu(old_probe_resp, rcu_head);
8ffcc704 906 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
8860020e 907
e716251d 908 __sta_info_flush(sdata, true);
7907c7d3 909 ieee80211_free_keys(sdata, true);
75de9113 910
d6a83228 911 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 912 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 913 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 914 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 915
a6b368f6 916 if (sdata->wdev.cac_started) {
d2859df5 917 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 918 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 919 cfg80211_cac_event(sdata->dev, &chandef,
920 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 921 GFP_KERNEL);
922 }
923
1041638f
JB		 924 drv_stop_ap(sdata->local, sdata);
925
7b20b8e8
JB		 926 /* free all potentially still buffered bcast frames */
927 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
6b07d9ca 928 ieee80211_purge_tx_queue(&local->hw, &sdata->u.ap.ps.bc_buf);
7b20b8e8 929
34a3740d 930 mutex_lock(&local->mtx);
4e141dad 931 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a 932 ieee80211_vif_release_channel(sdata);
34a3740d 933 mutex_unlock(&local->mtx);
55de908a 934
2d0ddec5 935 return 0;
5dfdaf58
JB		 936}
937
4fd6931e
JB		 938/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
939struct iapp_layer2_update {
940 u8 da[ETH_ALEN]; /* broadcast */
941 u8 sa[ETH_ALEN]; /* STA addr */
942 __be16 len; /* 6 */
943 u8 dsap; /* 0 */
944 u8 ssap; /* 0 */
945 u8 control;
946 u8 xid_info[3];
bc10502d 947} __packed;
4fd6931e
JB		 948
949static void ieee80211_send_layer2_update(struct sta_info *sta)
950{
951 struct iapp_layer2_update *msg;
952 struct sk_buff *skb;
953
954 /* Send Level 2 Update Frame to update forwarding tables in layer 2
955 * bridge devices */
956
957 skb = dev_alloc_skb(sizeof(*msg));
958 if (!skb)
959 return;
960 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
961
962 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
963 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
964
e83e6541 965 eth_broadcast_addr(msg->da);
17741cdc 966 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 967 msg->len = htons(6);
968 msg->dsap = 0;
969 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
970 msg->control = 0xaf; /* XID response lsb.1111F101.
971 * F=0 (no poll command; unsolicited frame) */
972 msg->xid_info[0] = 0x81; /* XID format identifier */
973 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
974 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
975
d0709a65
JB		 976 skb->dev = sta->sdata->dev;
977 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 978 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 979 netif_rx_ni(skb);
4fd6931e
JB		 980}
981
d582cffb
JB		 982static int sta_apply_auth_flags(struct ieee80211_local *local,
983 struct sta_info *sta,
984 u32 mask, u32 set)
985{
986 int ret;
987
988 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
989 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
990 !test_sta_flag(sta, WLAN_STA_AUTH)) {
991 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
992 if (ret)
993 return ret;
994 }
995
996 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
997 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
998 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
c23e31cf
MP		 999 /*
1000 * When peer becomes associated, init rate control as
1001 * well. Some drivers require rate control initialized
1002 * before drv_sta_state() is called.
1003 */
44674d9c 1004 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
c23e31cf
MP		 1005 rate_control_rate_init(sta);
1006
d582cffb
JB		 1007 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1008 if (ret)
1009 return ret;
1010 }
1011
1012 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1013 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1014 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1015 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1016 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1017 else
1018 ret = 0;
1019 if (ret)
1020 return ret;
1021 }
1022
1023 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
1024 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1025 test_sta_flag(sta, WLAN_STA_ASSOC)) {
1026 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1027 if (ret)
1028 return ret;
1029 }
1030
1031 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1032 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1033 test_sta_flag(sta, WLAN_STA_AUTH)) {
1034 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1035 if (ret)
1036 return ret;
1037 }
1038
1039 return 0;
1040}
1041
13657702
JB		 1042static void sta_apply_mesh_params(struct ieee80211_local *local,
1043 struct sta_info *sta,
1044 struct station_parameters *params)
1045{
1046#ifdef CONFIG_MAC80211_MESH
1047 struct ieee80211_sub_if_data *sdata = sta->sdata;
1048 u32 changed = 0;
1049
1050 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
1051 switch (params->plink_state) {
1052 case NL80211_PLINK_ESTAB:
1053 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
1054 changed = mesh_plink_inc_estab_count(sdata);
1055 sta->mesh->plink_state = params->plink_state;
7d27a0ba 1056 sta->mesh->aid = params->peer_aid;
13657702
JB		 1057
1058 ieee80211_mps_sta_status_update(sta);
1059 changed |= ieee80211_mps_set_sta_local_pm(sta,
1060 sdata->u.mesh.mshcfg.power_mode);
1061 break;
1062 case NL80211_PLINK_LISTEN:
1063 case NL80211_PLINK_BLOCKED:
1064 case NL80211_PLINK_OPN_SNT:
1065 case NL80211_PLINK_OPN_RCVD:
1066 case NL80211_PLINK_CNF_RCVD:
1067 case NL80211_PLINK_HOLDING:
1068 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1069 changed = mesh_plink_dec_estab_count(sdata);
1070 sta->mesh->plink_state = params->plink_state;
1071
1072 ieee80211_mps_sta_status_update(sta);
1073 changed |= ieee80211_mps_set_sta_local_pm(sta,
1074 NL80211_MESH_POWER_UNKNOWN);
1075 break;
1076 default:
1077 /* nothing */
1078 break;
1079 }
1080 }
1081
1082 switch (params->plink_action) {
1083 case NL80211_PLINK_ACTION_NO_ACTION:
1084 /* nothing */
1085 break;
1086 case NL80211_PLINK_ACTION_OPEN:
1087 changed |= mesh_plink_open(sta);
1088 break;
1089 case NL80211_PLINK_ACTION_BLOCK:
1090 changed |= mesh_plink_block(sta);
1091 break;
1092 }
1093
1094 if (params->local_pm)
1095 changed |= ieee80211_mps_set_sta_local_pm(sta,
1096 params->local_pm);
1097
1098 ieee80211_mbss_info_change_notify(sdata, changed);
1099#endif
1100}
1101
d9a7ddb0
JB		 1102static int sta_apply_parameters(struct ieee80211_local *local,
1103 struct sta_info *sta,
1104 struct station_parameters *params)
4fd6931e 1105{
d9a7ddb0 1106 int ret = 0;
8318d78a 1107 struct ieee80211_supported_band *sband;
d0709a65 1108 struct ieee80211_sub_if_data *sdata = sta->sdata;
57fbcce3 1109 enum nl80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1110 u32 mask, set;
4fd6931e 1111
55de908a 1112 sband = local->hw.wiphy->bands[band];
ae5eb026 1113
eccb8e8f
JB		 1114 mask = params->sta_flags_mask;
1115 set = params->sta_flags_set;
73651ee6 1116
d582cffb
JB		 1117 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1118 /*
1119 * In mesh mode, ASSOCIATED isn't part of the nl80211
1120 * API but must follow AUTHENTICATED for driver state.
1121 */
1122 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1123 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1124 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1125 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1126 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1127 /*
1128 * TDLS -- everything follows authorized, but
1129 * only becoming authorized is possible, not
1130 * going back
1131 */
1132 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1133 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1134 BIT(NL80211_STA_FLAG_ASSOCIATED);
1135 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1136 BIT(NL80211_STA_FLAG_ASSOCIATED);
1137 }
eccb8e8f 1138 }
4fd6931e 1139
2c44be81
JB		 1140 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1141 local->hw.queues >= IEEE80211_NUM_ACS)
1142 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1143
44674d9c
AB		 1144 /* auth flags will be set later for TDLS,
1145 * and for unassociated stations that move to assocaited */
1146 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1147 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1148 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
68885a54
AN		 1149 ret = sta_apply_auth_flags(local, sta, mask, set);
1150 if (ret)
1151 return ret;
1152 }
d9a7ddb0 1153
eccb8e8f 1154 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1155 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1156 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1157 else
1158 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1159 }
4fd6931e 1160
eccb8e8f 1161 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
93f0490e 1162 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
eccb8e8f 1163 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1164 set_sta_flag(sta, WLAN_STA_MFP);
1165 else
1166 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1167 }
b39c48fa 1168
07ba55d7 1169 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1170 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1171 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1172 else
1173 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1174 }
4fd6931e 1175
9041c1fa
AN		 1176 /* mark TDLS channel switch support, if the AP allows it */
1177 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1178 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1179 params->ext_capab_len >= 4 &&
1180 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1181 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1182
b98fb44f 1183 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
82c0cc90 1184 !sdata->u.mgd.tdls_wider_bw_prohibited &&
b98fb44f
AN		 1185 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1186 params->ext_capab_len >= 8 &&
1187 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1188 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1189
3b9ce80c
JB		 1190 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1191 sta->sta.uapsd_queues = params->uapsd_queues;
1192 sta->sta.max_sp = params->max_sp;
1193 }
9533b4ac 1194
506bcfa8
EG		 1195 /* The sender might not have sent the last bit, consider it to be 0 */
1196 if (params->ext_capab_len >= 8) {
1197 u8 val = (params->ext_capab[7] &
1198 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1199
1200 /* we did get all the bits, take the MSB as well */
1201 if (params->ext_capab_len >= 9) {
1202 u8 val_msb = params->ext_capab[8] &
1203 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1204 val_msb <<= 1;
1205 val |= val_msb;
1206 }
1207
1208 switch (val) {
1209 case 1:
1210 sta->sta.max_amsdu_subframes = 32;
1211 break;
1212 case 2:
1213 sta->sta.max_amsdu_subframes = 16;
1214 break;
1215 case 3:
1216 sta->sta.max_amsdu_subframes = 8;
1217 break;
1218 default:
1219 sta->sta.max_amsdu_subframes = 0;
1220 }
1221 }
1222
51b50fbe
JB		 1223 /*
1224 * cfg80211 validates this (1-2007) and allows setting the AID
1225 * only when creating a new station entry
1226 */
1227 if (params->aid)
1228 sta->sta.aid = params->aid;
1229
73651ee6 1230 /*
ba23d206
JB		 1231 * Some of the following updates would be racy if called on an
1232 * existing station, via ieee80211_change_station(). However,
1233 * all such changes are rejected by cfg80211 except for updates
1234 * changing the supported rates on an existing but not yet used
1235 * TDLS peer.
73651ee6
JB		 1236 */
1237
4fd6931e
JB		 1238 if (params->listen_interval >= 0)
1239 sta->listen_interval = params->listen_interval;
1240
1241 if (params->supported_rates) {
2103dec1
SW		 1242 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1243 sband, params->supported_rates,
1244 params->supported_rates_len,
1245 &sta->sta.supp_rates[band]);
4fd6931e 1246 }
c5dd9c2b 1247
d9fe60de 1248 if (params->ht_capa)
ef96a842 1249 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1250 params->ht_capa, sta);
36aedc90 1251
506bcfa8 1252 /* VHT can override some HT caps such as the A-MSDU max length */
f461be3e
MP		 1253 if (params->vht_capa)
1254 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1255 params->vht_capa, sta);
f461be3e 1256
b1bce14a 1257 if (params->opmode_notif_used) {
b1bce14a
MK		 1258 /* returned value is only needed for rc update, but the
1259 * rc isn't initialized here yet, so ignore it
1260 */
1261 __ieee80211_vht_handle_opmode(sdata, sta,
cf1e05c6 1262 params->opmode_notif, band);
b1bce14a
MK		 1263 }
1264
52cfa1d6
AB		 1265 if (params->support_p2p_ps >= 0)
1266 sta->sta.support_p2p_ps = params->support_p2p_ps;
1267
13657702
JB		 1268 if (ieee80211_vif_is_mesh(&sdata->vif))
1269 sta_apply_mesh_params(local, sta, params);
d9a7ddb0 1270
68885a54 1271 /* set the STA state after all sta info from usermode has been set */
44674d9c
AB		 1272 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1273 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
68885a54
AN		 1274 ret = sta_apply_auth_flags(local, sta, mask, set);
1275 if (ret)
1276 return ret;
1277 }
1278
d9a7ddb0 1279 return 0;
4fd6931e
JB		 1280}
1281
1282static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1283 const u8 *mac,
1284 struct station_parameters *params)
4fd6931e 1285{
14db74bc 1286 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1287 struct sta_info *sta;
1288 struct ieee80211_sub_if_data *sdata;
73651ee6 1289 int err;
b8d476c8 1290 int layer2_update;
4fd6931e 1291
4fd6931e
JB		 1292 if (params->vlan) {
1293 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1294
05c914fe
JB		 1295 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1296 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1297 return -EINVAL;
1298 } else
1299 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1300
b203ca39 1301 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1302 return -EINVAL;
1303
1304 if (is_multicast_ether_addr(mac))
1305 return -EINVAL;
1306
1307 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1308 if (!sta)
1309 return -ENOMEM;
4fd6931e 1310
44674d9c
AB		 1311 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1312 sta->sta.tdls = true;
4fd6931e 1313
d9a7ddb0
JB		 1314 err = sta_apply_parameters(local, sta, params);
1315 if (err) {
1316 sta_info_free(local, sta);
1317 return err;
1318 }
4fd6931e 1319
d64cf63e 1320 /*
44674d9c
AB		 1321 * for TDLS and for unassociated station, rate control should be
1322 * initialized only when rates are known and station is marked
1323 * authorized/associated
d64cf63e 1324 */
44674d9c
AB		 1325 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1326 test_sta_flag(sta, WLAN_STA_ASSOC))
d64cf63e 1327 rate_control_rate_init(sta);
4fd6931e 1328
b8d476c8
JM		 1329 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1330 sdata->vif.type == NL80211_IFTYPE_AP;
1331
34e89507 1332 err = sta_info_insert_rcu(sta);
73651ee6 1333 if (err) {
73651ee6
JB		 1334 rcu_read_unlock();
1335 return err;
1336 }
1337
b8d476c8 1338 if (layer2_update)
73651ee6
JB		 1339 ieee80211_send_layer2_update(sta);
1340
1341 rcu_read_unlock();
1342
4fd6931e
JB		 1343 return 0;
1344}
1345
1346static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
89c771e5 1347 struct station_del_parameters *params)
4fd6931e 1348{
14db74bc 1349 struct ieee80211_sub_if_data *sdata;
4fd6931e 1350
14db74bc
JB		 1351 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1352
89c771e5
JM		 1353 if (params->mac)
1354 return sta_info_destroy_addr_bss(sdata, params->mac);
4fd6931e 1355
b998e8bb 1356 sta_info_flush(sdata);
4fd6931e
JB		 1357 return 0;
1358}
1359
1360static int ieee80211_change_station(struct wiphy *wiphy,
3b3a0162 1361 struct net_device *dev, const u8 *mac,
4fd6931e
JB		 1362 struct station_parameters *params)
1363{
abe60632 1364 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1365 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1366 struct sta_info *sta;
1367 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1368 enum cfg80211_station_type statype;
35b88623 1369 int err;
4fd6931e 1370
87be1e1e 1371 mutex_lock(&local->sta_mtx);
98dd6a57 1372
0e5ded5a 1373 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1374 if (!sta) {
77ee7c89
JB		 1375 err = -ENOENT;
1376 goto out_err;
98dd6a57 1377 }
4fd6931e 1378
77ee7c89
JB		 1379 switch (sdata->vif.type) {
1380 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1381 if (sdata->u.mesh.user_mpm)
eef941e6 1382 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1383 else
eef941e6 1384 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1385 break;
1386 case NL80211_IFTYPE_ADHOC:
1387 statype = CFG80211_STA_IBSS;
1388 break;
1389 case NL80211_IFTYPE_STATION:
1390 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1391 statype = CFG80211_STA_AP_STA;
1392 break;
1393 }
1394 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1395 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1396 else
1397 statype = CFG80211_STA_TDLS_PEER_SETUP;
1398 break;
1399 case NL80211_IFTYPE_AP:
1400 case NL80211_IFTYPE_AP_VLAN:
44674d9c
AB		 1401 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1402 statype = CFG80211_STA_AP_CLIENT;
1403 else
1404 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
77ee7c89
JB		 1405 break;
1406 default:
1407 err = -EOPNOTSUPP;
1408 goto out_err;
bdd90d5e
JB		 1409 }
1410
77ee7c89
JB		 1411 err = cfg80211_check_station_change(wiphy, params, statype);
1412 if (err)
1413 goto out_err;
1414
d0709a65 1415 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1416 bool prev_4addr = false;
1417 bool new_4addr = false;
1418
4fd6931e
JB		 1419 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1420
9bc383de 1421 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1422 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1423 err = -EBUSY;
1424 goto out_err;
3305443c 1425 }
f14543ee 1426
cf778b00 1427 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c 1428 new_4addr = true;
49ddf8e6 1429 __ieee80211_check_fast_rx_iface(vlansdata);
7e3ed02c
FF		 1430 }
1431
1432 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1433 sta->sdata->u.vlan.sta) {
0c2bef46 1434 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
7e3ed02c 1435 prev_4addr = true;
f14543ee
FF		 1436 }
1437
14db74bc 1438 sta->sdata = vlansdata;
464daaf0 1439 ieee80211_check_fast_xmit(sta);
7e3ed02c
FF		 1440
1441 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1442 prev_4addr != new_4addr) {
1443 if (new_4addr)
1444 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1445 else
1446 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1447 }
1448
4fd6931e
JB		 1449 ieee80211_send_layer2_update(sta);
1450 }
1451
35b88623 1452 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1453 if (err)
1454 goto out_err;
4fd6931e 1455
87be1e1e 1456 mutex_unlock(&local->sta_mtx);
98dd6a57 1457
687da132
EG		 1458 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1459 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1460 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1461 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1462 sta_info_tx_streams(sta) != 1) {
1463 ht_dbg(sta->sdata,
1464 "%pM just authorized and MIMO capable - update SMPS\n",
1465 sta->sta.addr);
1466 ieee80211_send_smps_action(sta->sdata,
1467 sta->sdata->bss->req_smps,
1468 sta->sta.addr,
1469 sta->sdata->vif.bss_conf.bssid);
1470 }
1471
808118cb 1472 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1473 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
4a733ef1 1474 ieee80211_recalc_ps(local);
ab095877
EP		 1475 ieee80211_recalc_ps_vif(sdata);
1476 }
77ee7c89 1477
4fd6931e 1478 return 0;
77ee7c89
JB		 1479out_err:
1480 mutex_unlock(&local->sta_mtx);
1481 return err;
4fd6931e
JB		 1482}
1483
c5dd9c2b
LCC		 1484#ifdef CONFIG_MAC80211_MESH
1485static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1486 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1487{
14db74bc 1488 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1489 struct mesh_path *mpath;
1490 struct sta_info *sta;
c5dd9c2b 1491
14db74bc
JB		 1492 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1493
d0709a65 1494 rcu_read_lock();
abe60632 1495 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1496 if (!sta) {
1497 rcu_read_unlock();
c5dd9c2b 1498 return -ENOENT;
d0709a65 1499 }
c5dd9c2b 1500
ae76eef0
BC		 1501 mpath = mesh_path_add(sdata, dst);
1502 if (IS_ERR(mpath)) {
d0709a65 1503 rcu_read_unlock();
ae76eef0 1504 return PTR_ERR(mpath);
d0709a65 1505 }
c5dd9c2b 1506
c5dd9c2b 1507 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1508
c5dd9c2b
LCC		 1509 rcu_read_unlock();
1510 return 0;
1511}
1512
1513static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1514 const u8 *dst)
c5dd9c2b 1515{
f698d856
JBG		 1516 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1517
c5dd9c2b 1518 if (dst)
bf7cd94d 1519 return mesh_path_del(sdata, dst);
c5dd9c2b 1520
ece1a2e7 1521 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1522 return 0;
1523}
1524
3b3a0162
JB		 1525static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1526 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1527{
14db74bc 1528 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1529 struct mesh_path *mpath;
1530 struct sta_info *sta;
1531
14db74bc
JB		 1532 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1533
d0709a65
JB		 1534 rcu_read_lock();
1535
abe60632 1536 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1537 if (!sta) {
1538 rcu_read_unlock();
c5dd9c2b 1539 return -ENOENT;
d0709a65 1540 }
c5dd9c2b 1541
bf7cd94d 1542 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1543 if (!mpath) {
1544 rcu_read_unlock();
c5dd9c2b
LCC		 1545 return -ENOENT;
1546 }
1547
1548 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1549
c5dd9c2b
LCC		 1550 rcu_read_unlock();
1551 return 0;
1552}
1553
1554static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1555 struct mpath_info *pinfo)
1556{
a3836e02
JB		 1557 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1558
1559 if (next_hop_sta)
1560 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b 1561 else
c84a67a2 1562 eth_zero_addr(next_hop);
c5dd9c2b 1563
7ce8c7a3
LAYS		 1564 memset(pinfo, 0, sizeof(*pinfo));
1565
2bdaf386 1566 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
f5ea9120 1567
c5dd9c2b 1568 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1569 MPATH_INFO_SN |
c5dd9c2b
LCC		 1570 MPATH_INFO_METRIC |
1571 MPATH_INFO_EXPTIME |
1572 MPATH_INFO_DISCOVERY_TIMEOUT |
1573 MPATH_INFO_DISCOVERY_RETRIES |
1574 MPATH_INFO_FLAGS;
1575
1576 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1577 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1578 pinfo->metric = mpath->metric;
1579 if (time_before(jiffies, mpath->exp_time))
1580 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1581 pinfo->discovery_timeout =
1582 jiffies_to_msecs(mpath->discovery_timeout);
1583 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1584 if (mpath->flags & MESH_PATH_ACTIVE)
1585 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1586 if (mpath->flags & MESH_PATH_RESOLVING)
1587 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1588 if (mpath->flags & MESH_PATH_SN_VALID)
1589 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1590 if (mpath->flags & MESH_PATH_FIXED)
1591 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1592 if (mpath->flags & MESH_PATH_RESOLVED)
1593 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1594}
1595
1596static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1597 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1598
1599{
14db74bc 1600 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1601 struct mesh_path *mpath;
1602
14db74bc
JB		 1603 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1604
c5dd9c2b 1605 rcu_read_lock();
bf7cd94d 1606 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1607 if (!mpath) {
1608 rcu_read_unlock();
1609 return -ENOENT;
1610 }
1611 memcpy(dst, mpath->dst, ETH_ALEN);
1612 mpath_set_pinfo(mpath, next_hop, pinfo);
1613 rcu_read_unlock();
1614 return 0;
1615}
1616
1617static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1618 int idx, u8 *dst, u8 *next_hop,
1619 struct mpath_info *pinfo)
c5dd9c2b 1620{
14db74bc 1621 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1622 struct mesh_path *mpath;
1623
14db74bc
JB		 1624 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1625
c5dd9c2b 1626 rcu_read_lock();
bf7cd94d 1627 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1628 if (!mpath) {
1629 rcu_read_unlock();
1630 return -ENOENT;
1631 }
1632 memcpy(dst, mpath->dst, ETH_ALEN);
1633 mpath_set_pinfo(mpath, next_hop, pinfo);
1634 rcu_read_unlock();
1635 return 0;
1636}
93da9cc1 1637
a2db2ed3
HR		 1638static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1639 struct mpath_info *pinfo)
1640{
1641 memset(pinfo, 0, sizeof(*pinfo));
1642 memcpy(mpp, mpath->mpp, ETH_ALEN);
1643
2bdaf386 1644 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
a2db2ed3
HR		 1645}
1646
1647static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1648 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1649
1650{
1651 struct ieee80211_sub_if_data *sdata;
1652 struct mesh_path *mpath;
1653
1654 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1655
1656 rcu_read_lock();
1657 mpath = mpp_path_lookup(sdata, dst);
1658 if (!mpath) {
1659 rcu_read_unlock();
1660 return -ENOENT;
1661 }
1662 memcpy(dst, mpath->dst, ETH_ALEN);
1663 mpp_set_pinfo(mpath, mpp, pinfo);
1664 rcu_read_unlock();
1665 return 0;
1666}
1667
1668static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1669 int idx, u8 *dst, u8 *mpp,
1670 struct mpath_info *pinfo)
1671{
1672 struct ieee80211_sub_if_data *sdata;
1673 struct mesh_path *mpath;
1674
1675 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1676
1677 rcu_read_lock();
1678 mpath = mpp_path_lookup_by_idx(sdata, idx);
1679 if (!mpath) {
1680 rcu_read_unlock();
1681 return -ENOENT;
1682 }
1683 memcpy(dst, mpath->dst, ETH_ALEN);
1684 mpp_set_pinfo(mpath, mpp, pinfo);
1685 rcu_read_unlock();
1686 return 0;
1687}
1688
24bdd9f4 1689static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1690 struct net_device *dev,
1691 struct mesh_config *conf)
1692{
1693 struct ieee80211_sub_if_data *sdata;
1694 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1695
93da9cc1 1696 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1697 return 0;
1698}
1699
1700static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1701{
1702 return (mask >> (parm-1)) & 0x1;
1703}
1704
c80d545d
JC		 1705static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1706 const struct mesh_setup *setup)
1707{
1708 u8 *new_ie;
1709 const u8 *old_ie;
4bb62344
CYY		 1710 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1711 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1712
581a8b0f 1713 /* allocate information elements */
c80d545d 1714 new_ie = NULL;
581a8b0f 1715 old_ie = ifmsh->ie;
c80d545d 1716
581a8b0f
JC		 1717 if (setup->ie_len) {
1718 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1719 GFP_KERNEL);
1720 if (!new_ie)
1721 return -ENOMEM;
1722 }
581a8b0f
JC		 1723 ifmsh->ie_len = setup->ie_len;
1724 ifmsh->ie = new_ie;
1725 kfree(old_ie);
c80d545d
JC		 1726
1727 /* now copy the rest of the setup parameters */
1728 ifmsh->mesh_id_len = setup->mesh_id_len;
1729 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1730 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1731 ifmsh->mesh_pp_id = setup->path_sel_proto;
1732 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1733 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1734 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1735 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1736 if (setup->is_authenticated)
1737 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1738 if (setup->is_secure)
1739 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1740
4bb62344
CYY		 1741 /* mcast rate setting in Mesh Node */
1742 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1743 sizeof(setup->mcast_rate));
ffb3cf30 1744 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1745
9bdbf04d
MP		 1746 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1747 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1748
c80d545d
JC		 1749 return 0;
1750}
1751
24bdd9f4 1752static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1753 struct net_device *dev, u32 mask,
1754 const struct mesh_config *nconf)
93da9cc1 1755{
1756 struct mesh_config *conf;
1757 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1758 struct ieee80211_if_mesh *ifmsh;
1759
93da9cc1 1760 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1761 ifmsh = &sdata->u.mesh;
93da9cc1 1762
93da9cc1 1763 /* Set the config options which we are interested in setting */
1764 conf = &(sdata->u.mesh.mshcfg);
1765 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1766 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1767 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1768 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1769 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1770 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1771 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1772 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1773 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1774 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1775 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1776 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1777 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1778 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1779 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1780 if (ifmsh->user_mpm)
1781 return -EBUSY;
93da9cc1 1782 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1783 }
d299a1f2
JC		 1784 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1785 conf->dot11MeshNbrOffsetMaxNeighbor =
1786 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1787 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1788 conf->dot11MeshHWMPmaxPREQretries =
1789 nconf->dot11MeshHWMPmaxPREQretries;
1790 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1791 conf->path_refresh_time = nconf->path_refresh_time;
1792 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1793 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1794 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1795 conf->dot11MeshHWMPactivePathTimeout =
1796 nconf->dot11MeshHWMPactivePathTimeout;
1797 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1798 conf->dot11MeshHWMPpreqMinInterval =
1799 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1800 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1801 conf->dot11MeshHWMPperrMinInterval =
1802 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1803 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1804 mask))
1805 conf->dot11MeshHWMPnetDiameterTraversalTime =
1806 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1807 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1808 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1809 ieee80211_mesh_root_setup(ifmsh);
1810 }
16dd7267 1811 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1812 /* our current gate announcement implementation rides on root
1813 * announcements, so require this ifmsh to also be a root node
1814 * */
1815 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1816 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1817 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1818 ieee80211_mesh_root_setup(ifmsh);
1819 }
16dd7267
JC		 1820 conf->dot11MeshGateAnnouncementProtocol =
1821 nconf->dot11MeshGateAnnouncementProtocol;
1822 }
a4f606ea 1823 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1824 conf->dot11MeshHWMPRannInterval =
1825 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1826 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1827 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1828 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1829 /* our RSSI threshold implementation is supported only for
1830 * devices that report signal in dBm.
1831 */
30686bf7 1832 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
55335137
AN		 1833 return -ENOTSUPP;
1834 conf->rssi_threshold = nconf->rssi_threshold;
1835 }
70c33eaa
AN		 1836 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1837 conf->ht_opmode = nconf->ht_opmode;
1838 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1839 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1840 }
ac1073a6
CYY		 1841 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1842 conf->dot11MeshHWMPactivePathToRootTimeout =
1843 nconf->dot11MeshHWMPactivePathToRootTimeout;
1844 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1845 conf->dot11MeshHWMProotInterval =
1846 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1847 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1848 conf->dot11MeshHWMPconfirmationInterval =
1849 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1850 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1851 conf->power_mode = nconf->power_mode;
1852 ieee80211_mps_local_status_update(sdata);
1853 }
2b5e1967 1854 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1855 conf->dot11MeshAwakeWindowDuration =
1856 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1857 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1858 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1859 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1860 return 0;
1861}
1862
29cbe68c
JB		 1863static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1864 const struct mesh_config *conf,
1865 const struct mesh_setup *setup)
1866{
1867 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1868 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1869 int err;
29cbe68c 1870
c80d545d
JC		 1871 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1872 err = copy_mesh_setup(ifmsh, setup);
1873 if (err)
1874 return err;
cc1d2806 1875
04ecd257
JB		 1876 /* can mesh use other SMPS modes? */
1877 sdata->smps_mode = IEEE80211_SMPS_OFF;
1878 sdata->needed_rx_chains = sdata->local->rx_chains;
1879
34a3740d 1880 mutex_lock(&sdata->local->mtx);
4bf88530 1881 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1882 IEEE80211_CHANCTX_SHARED);
34a3740d 1883 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1884 if (err)
1885 return err;
1886
2b5e1967 1887 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1888}
1889
1890static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1891{
1892 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1893
1894 ieee80211_stop_mesh(sdata);
34a3740d 1895 mutex_lock(&sdata->local->mtx);
55de908a 1896 ieee80211_vif_release_channel(sdata);
34a3740d 1897 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1898
1899 return 0;
1900}
c5dd9c2b
LCC		 1901#endif
1902
9f1ba906
JM		 1903static int ieee80211_change_bss(struct wiphy *wiphy,
1904 struct net_device *dev,
1905 struct bss_parameters *params)
1906{
55de908a 1907 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
57fbcce3 1908 enum nl80211_band band;
9f1ba906
JM		 1909 u32 changed = 0;
1910
7ca133bc 1911 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1912 return -ENOENT;
1913
1914 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1915
9f1ba906 1916 if (params->use_cts_prot >= 0) {
bda3933a 1917 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1918 changed |= BSS_CHANGED_ERP_CTS_PROT;
1919 }
1920 if (params->use_short_preamble >= 0) {
bda3933a 1921 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1922 params->use_short_preamble;
1923 changed |= BSS_CHANGED_ERP_PREAMBLE;
1924 }
43d35343
FF		 1925
1926 if (!sdata->vif.bss_conf.use_short_slot &&
57fbcce3 1927 band == NL80211_BAND_5GHZ) {
43d35343
FF		 1928 sdata->vif.bss_conf.use_short_slot = true;
1929 changed |= BSS_CHANGED_ERP_SLOT;
1930 }
1931
9f1ba906 1932 if (params->use_short_slot_time >= 0) {
bda3933a 1933 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1934 params->use_short_slot_time;
1935 changed |= BSS_CHANGED_ERP_SLOT;
1936 }
1937
90c97a04 1938 if (params->basic_rates) {
2103dec1
SW		 1939 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1940 wiphy->bands[band],
1941 params->basic_rates,
1942 params->basic_rates_len,
1943 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 1944 changed |= BSS_CHANGED_BASIC_RATES;
1945 }
1946
7b7b5e56
FF		 1947 if (params->ap_isolate >= 0) {
1948 if (params->ap_isolate)
1949 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1950 else
1951 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
49ddf8e6 1952 ieee80211_check_fast_rx_iface(sdata);
7b7b5e56
FF		 1953 }
1954
80d7e403
HS		 1955 if (params->ht_opmode >= 0) {
1956 sdata->vif.bss_conf.ht_operation_mode =
1957 (u16) params->ht_opmode;
1958 changed |= BSS_CHANGED_HT;
1959 }
1960
339afbf4 1961 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1962 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1963 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1964 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1965 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1966 changed |= BSS_CHANGED_P2P_PS;
1967 }
1968
67baf663
JD		 1969 if (params->p2p_opp_ps > 0) {
1970 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1971 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1972 changed |= BSS_CHANGED_P2P_PS;
1973 } else if (params->p2p_opp_ps == 0) {
1974 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1975 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1976 changed |= BSS_CHANGED_P2P_PS;
1977 }
1978
9f1ba906
JM		 1979 ieee80211_bss_info_change_notify(sdata, changed);
1980
1981 return 0;
1982}
1983
31888487 1984static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1985 struct net_device *dev,
31888487
JM		 1986 struct ieee80211_txq_params *params)
1987{
1988 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1989 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1990 struct ieee80211_tx_queue_params p;
1991
1992 if (!local->ops->conf_tx)
1993 return -EOPNOTSUPP;
1994
54bcbc69
JB		 1995 if (local->hw.queues < IEEE80211_NUM_ACS)
1996 return -EOPNOTSUPP;
1997
31888487
JM		 1998 memset(&p, 0, sizeof(p));
1999 p.aifs = params->aifs;
2000 p.cw_max = params->cwmax;
2001 p.cw_min = params->cwmin;
2002 p.txop = params->txop;
ab13315a
KV		 2003
2004 /*
2005 * Setting tx queue params disables u-apsd because it's only
2006 * called in master mode.
2007 */
2008 p.uapsd = false;
2009
a3304b0a
JB		 2010 sdata->tx_conf[params->ac] = p;
2011 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 2012 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 2013 "failed to set TX queue parameters for AC %d\n",
2014 params->ac);
31888487
JM		 2015 return -EINVAL;
2016 }
2017
7d25745d
JB		 2018 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
2019
31888487
JM		 2020 return 0;
2021}
2022
665af4fc 2023#ifdef CONFIG_PM
ff1b6e69
JB		 2024static int ieee80211_suspend(struct wiphy *wiphy,
2025 struct cfg80211_wowlan *wowlan)
665af4fc 2026{
eecc4800 2027 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 2028}
2029
2030static int ieee80211_resume(struct wiphy *wiphy)
2031{
2032 return __ieee80211_resume(wiphy_priv(wiphy));
2033}
2034#else
2035#define ieee80211_suspend NULL
2036#define ieee80211_resume NULL
2037#endif
2038
2a519311 2039static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 2040 struct cfg80211_scan_request *req)
2041{
fd014284
JB		 2042 struct ieee80211_sub_if_data *sdata;
2043
2044 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 2045
2ca27bcf
JB		 2046 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
2047 case NL80211_IFTYPE_STATION:
2048 case NL80211_IFTYPE_ADHOC:
2049 case NL80211_IFTYPE_MESH_POINT:
2050 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 2051 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 2052 break;
2053 case NL80211_IFTYPE_P2P_GO:
2054 if (sdata->local->ops->hw_scan)
2055 break;
e9d7732e
JB		 2056 /*
2057 * FIXME: implement NoA while scanning in software,
2058 * for now fall through to allow scanning only when
2059 * beaconing hasn't been configured yet
2060 */
2ca27bcf 2061 case NL80211_IFTYPE_AP:
5c95b940
AQ		 2062 /*
2063 * If the scan has been forced (and the driver supports
2064 * forcing), don't care about being beaconing already.
2065 * This will create problems to the attached stations (e.g. all
2066 * the frames sent while scanning on other channel will be
2067 * lost)
2068 */
2069 if (sdata->u.ap.beacon &&
2070 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2071 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2072 return -EOPNOTSUPP;
2073 break;
cb3b7d87 2074 case NL80211_IFTYPE_NAN:
2ca27bcf
JB		 2075 default:
2076 return -EOPNOTSUPP;
2077 }
2a519311
JB		 2078
2079 return ieee80211_request_scan(sdata, req);
2080}
2081
91f123f2
VK		 2082static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2083{
2084 ieee80211_scan_cancel(wiphy_priv(wiphy));
2085}
2086
79f460ca
LC		 2087static int
2088ieee80211_sched_scan_start(struct wiphy *wiphy,
2089 struct net_device *dev,
2090 struct cfg80211_sched_scan_request *req)
2091{
2092 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2093
2094 if (!sdata->local->ops->sched_scan_start)
2095 return -EOPNOTSUPP;
2096
2097 return ieee80211_request_sched_scan_start(sdata, req);
2098}
2099
2100static int
85a9994a 2101ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca 2102{
0d440ea2 2103 struct ieee80211_local *local = wiphy_priv(wiphy);
79f460ca 2104
0d440ea2 2105 if (!local->ops->sched_scan_stop)
79f460ca
LC		 2106 return -EOPNOTSUPP;
2107
0d440ea2 2108 return ieee80211_request_sched_scan_stop(local);
79f460ca
LC		 2109}
2110
636a5d36
JM		 2111static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2112 struct cfg80211_auth_request *req)
2113{
77fdaa12 2114 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2115}
2116
2117static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2118 struct cfg80211_assoc_request *req)
2119{
77fdaa12 2120 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2121}
2122
2123static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2124 struct cfg80211_deauth_request *req)
636a5d36 2125{
63c9c5e7 2126 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2127}
2128
2129static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2130 struct cfg80211_disassoc_request *req)
636a5d36 2131{
63c9c5e7 2132 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2133}
2134
af8cdcd8
JB		 2135static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2136 struct cfg80211_ibss_params *params)
2137{
55de908a 2138 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2139}
2140
2141static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2142{
55de908a 2143 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2144}
2145
239281f8
RL		 2146static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2147 struct ocb_setup *setup)
2148{
2149 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2150}
2151
2152static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2153{
2154 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2155}
2156
391e53e3 2157static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
57fbcce3 2158 int rate[NUM_NL80211_BANDS])
391e53e3
AQ		 2159{
2160 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2161
9887dbf5 2162 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
57fbcce3 2163 sizeof(int) * NUM_NL80211_BANDS);
391e53e3
AQ		 2164
2165 return 0;
2166}
2167
b9a5f8ca
JM		 2168static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2169{
2170 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2171 int err;
b9a5f8ca 2172
f23a4780 2173 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
17c18bf8
JB		 2174 ieee80211_check_fast_xmit_all(local);
2175
f23a4780
AN		 2176 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2177
17c18bf8
JB		 2178 if (err) {
2179 ieee80211_check_fast_xmit_all(local);
f23a4780 2180 return err;
17c18bf8 2181 }
f23a4780
AN		 2182 }
2183
a4bcaf55
LB		 2184 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2185 (changed & WIPHY_PARAM_DYN_ACK)) {
2186 s16 coverage_class;
2187
2188 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2189 wiphy->coverage_class : -1;
2190 err = drv_set_coverage_class(local, coverage_class);
310bc676
LT		 2191
2192 if (err)
2193 return err;
2194 }
2195
b9a5f8ca 2196 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2197 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2198
24487981
JB		 2199 if (err)
2200 return err;
b9a5f8ca
JM		 2201 }
2202
8bc83c24
JB		 2203 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2204 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2205 return -EINVAL;
b9a5f8ca 2206 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2207 }
2208 if (changed & WIPHY_PARAM_RETRY_LONG) {
2209 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2210 return -EINVAL;
b9a5f8ca 2211 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2212 }
b9a5f8ca
JM		 2213 if (changed &
2214 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2215 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2216
2217 return 0;
2218}
2219
7643a2c3 2220static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2221 struct wireless_dev *wdev,
fa61cf70 2222 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2223{
2224 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2225 struct ieee80211_sub_if_data *sdata;
db82d8a9
LB		 2226 enum nl80211_tx_power_setting txp_type = type;
2227 bool update_txp_type = false;
7643a2c3 2228
1ea6f9c0
JB		 2229 if (wdev) {
2230 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2231
2232 switch (type) {
2233 case NL80211_TX_POWER_AUTOMATIC:
2234 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2235 txp_type = NL80211_TX_POWER_LIMITED;
1ea6f9c0
JB		 2236 break;
2237 case NL80211_TX_POWER_LIMITED:
2238 case NL80211_TX_POWER_FIXED:
2239 if (mbm < 0 || (mbm % 100))
2240 return -EOPNOTSUPP;
2241 sdata->user_power_level = MBM_TO_DBM(mbm);
2242 break;
2243 }
2244
db82d8a9
LB		 2245 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2246 update_txp_type = true;
2247 sdata->vif.bss_conf.txpower_type = txp_type;
2248 }
2249
2250 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0
JB		 2251
2252 return 0;
2253 }
55de908a 2254
7643a2c3 2255 switch (type) {
fa61cf70 2256 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2257 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2258 txp_type = NL80211_TX_POWER_LIMITED;
7643a2c3 2259 break;
fa61cf70 2260 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2261 case NL80211_TX_POWER_FIXED:
2262 if (mbm < 0 || (mbm % 100))
2263 return -EOPNOTSUPP;
fa61cf70 2264 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2265 break;
7643a2c3
JB		 2266 }
2267
1ea6f9c0 2268 mutex_lock(&local->iflist_mtx);
db82d8a9 2269 list_for_each_entry(sdata, &local->interfaces, list) {
1ea6f9c0 2270 sdata->user_power_level = local->user_power_level;
db82d8a9
LB		 2271 if (txp_type != sdata->vif.bss_conf.txpower_type)
2272 update_txp_type = true;
2273 sdata->vif.bss_conf.txpower_type = txp_type;
2274 }
1ea6f9c0 2275 list_for_each_entry(sdata, &local->interfaces, list)
db82d8a9 2276 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0 2277 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2278
2279 return 0;
2280}
2281
c8442118
JB		 2282static int ieee80211_get_tx_power(struct wiphy *wiphy,
2283 struct wireless_dev *wdev,
2284 int *dbm)
7643a2c3
JB		 2285{
2286 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2287 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2288
5b3dc42b
FF		 2289 if (local->ops->get_txpower)
2290 return drv_get_txpower(local, sdata, dbm);
2291
1ea6f9c0
JB		 2292 if (!local->use_chanctx)
2293 *dbm = local->hw.conf.power_level;
2294 else
2295 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2296
7643a2c3
JB		 2297 return 0;
2298}
2299
ab737a4f 2300static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2301 const u8 *addr)
ab737a4f
JB		 2302{
2303 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2304
2305 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2306
2307 return 0;
2308}
2309
1f87f7d3
JB		 2310static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2311{
2312 struct ieee80211_local *local = wiphy_priv(wiphy);
2313
2314 drv_rfkill_poll(local);
2315}
2316
aff89a9b 2317#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2318static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2319 struct wireless_dev *wdev,
2320 void *data, int len)
aff89a9b
JB		 2321{
2322 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2323 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2324
2325 if (!local->ops->testmode_cmd)
2326 return -EOPNOTSUPP;
2327
52981cd7
DS		 2328 if (wdev) {
2329 struct ieee80211_sub_if_data *sdata;
2330
2331 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2332 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2333 vif = &sdata->vif;
2334 }
2335
2336 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2337}
71063f0e
WYG		 2338
2339static int ieee80211_testmode_dump(struct wiphy *wiphy,
2340 struct sk_buff *skb,
2341 struct netlink_callback *cb,
2342 void *data, int len)
2343{
2344 struct ieee80211_local *local = wiphy_priv(wiphy);
2345
2346 if (!local->ops->testmode_dump)
2347 return -EOPNOTSUPP;
2348
2349 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2350}
aff89a9b
JB		 2351#endif
2352
687da132
EG		 2353int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2354 enum ieee80211_smps_mode smps_mode)
2355{
2356 struct sta_info *sta;
2357 enum ieee80211_smps_mode old_req;
687da132
EG		 2358
2359 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2360 return -EINVAL;
2361
2362 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2363 return 0;
2364
2365 old_req = sdata->u.ap.req_smps;
2366 sdata->u.ap.req_smps = smps_mode;
2367
2368 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2369 if (old_req == smps_mode ||
2370 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2371 return 0;
2372
2373 /* If no associated stations, there's no need to do anything */
2374 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2375 sdata->smps_mode = smps_mode;
2376 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2377 return 0;
2378 }
2379
2380 ht_dbg(sdata,
6a8b4adb 2381 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
687da132
EG		 2382 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2383
2384 mutex_lock(&sdata->local->sta_mtx);
7d9bb2f0
JB		 2385 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2386 /*
2387 * Only stations associated to our AP and
2388 * associated VLANs
2389 */
2390 if (sta->sdata->bss != &sdata->u.ap)
2391 continue;
687da132 2392
7d9bb2f0
JB		 2393 /* This station doesn't support MIMO - skip it */
2394 if (sta_info_tx_streams(sta) == 1)
2395 continue;
687da132 2396
7d9bb2f0
JB		 2397 /*
2398 * Don't wake up a STA just to send the action frame
2399 * unless we are getting more restrictive.
2400 */
2401 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2402 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2403 smps_mode)) {
2404 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2405 sta->sta.addr);
2406 continue;
2407 }
687da132 2408
7d9bb2f0
JB		 2409 /*
2410 * If the STA is not authorized, wait until it gets
2411 * authorized and the action frame will be sent then.
2412 */
2413 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2414 continue;
687da132 2415
7d9bb2f0
JB		 2416 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2417 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2418 sdata->vif.bss_conf.bssid);
687da132
EG		 2419 }
2420 mutex_unlock(&sdata->local->sta_mtx);
2421
2422 sdata->smps_mode = smps_mode;
2423 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2424
2425 return 0;
2426}
2427
2428int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2429 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2430{
2431 const u8 *ap;
2432 enum ieee80211_smps_mode old_req;
2433 int err;
d51c2ea3
AN		 2434 struct sta_info *sta;
2435 bool tdls_peer_found = false;
0f78231b 2436
8d61ffa5 2437 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2438
687da132
EG		 2439 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2440 return -EINVAL;
2441
0f78231b
JB		 2442 old_req = sdata->u.mgd.req_smps;
2443 sdata->u.mgd.req_smps = smps_mode;
2444
2445 if (old_req == smps_mode &&
2446 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2447 return 0;
2448
2449 /*
2450 * If not associated, or current association is not an HT
04ecd257
JB		 2451 * association, there's no need to do anything, just store
2452 * the new value until we associate.
0f78231b
JB		 2453 */
2454 if (!sdata->u.mgd.associated ||
4bf88530 2455 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2456 return 0;
0f78231b 2457
0c1ad2ca 2458 ap = sdata->u.mgd.associated->bssid;
0f78231b 2459
d51c2ea3
AN		 2460 rcu_read_lock();
2461 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2462 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2463 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2464 continue;
2465
2466 tdls_peer_found = true;
2467 break;
2468 }
2469 rcu_read_unlock();
2470
0f78231b 2471 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
d51c2ea3 2472 if (tdls_peer_found || !sdata->u.mgd.powersave)
0f78231b 2473 smps_mode = IEEE80211_SMPS_OFF;
d51c2ea3
AN		 2474 else
2475 smps_mode = IEEE80211_SMPS_DYNAMIC;
0f78231b
JB		 2476 }
2477
2478 /* send SM PS frame to AP */
2479 err = ieee80211_send_smps_action(sdata, smps_mode,
2480 ap, ap);
2481 if (err)
2482 sdata->u.mgd.req_smps = old_req;
d51c2ea3
AN		 2483 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2484 ieee80211_teardown_tdls_peers(sdata);
0f78231b
JB		 2485
2486 return err;
2487}
2488
bc92afd9
JB		 2489static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2490 bool enabled, int timeout)
2491{
2492 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2493 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2494
2d3db210 2495 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2496 return -EOPNOTSUPP;
2497
30686bf7 2498 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
bc92afd9
JB		 2499 return -EOPNOTSUPP;
2500
2501 if (enabled == sdata->u.mgd.powersave &&
ff616381 2502 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2503 return 0;
2504
2505 sdata->u.mgd.powersave = enabled;
ff616381 2506 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2507
0f78231b 2508 /* no change, but if automatic follow powersave */
ed405be5 2509 sdata_lock(sdata);
687da132 2510 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2511 sdata_unlock(sdata);
0f78231b 2512
30686bf7 2513 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
bc92afd9
JB		 2514 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2515
4a733ef1 2516 ieee80211_recalc_ps(local);
ab095877 2517 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2518
2519 return 0;
2520}
2521
a97c13c3
JO		 2522static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2523 struct net_device *dev,
2524 s32 rssi_thold, u32 rssi_hyst)
2525{
2526 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2527 struct ieee80211_vif *vif = &sdata->vif;
2528 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2529
a97c13c3
JO		 2530 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2531 rssi_hyst == bss_conf->cqm_rssi_hyst)
2532 return 0;
2533
ef9be10c
JB		 2534 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2535 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2536 return -EOPNOTSUPP;
2537
a97c13c3
JO		 2538 bss_conf->cqm_rssi_thold = rssi_thold;
2539 bss_conf->cqm_rssi_hyst = rssi_hyst;
babc305e 2540 sdata->u.mgd.last_cqm_event_signal = 0;
a97c13c3
JO		 2541
2542 /* tell the driver upon association, unless already associated */
ea086359
JB		 2543 if (sdata->u.mgd.associated &&
2544 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2545 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2546
2547 return 0;
2548}
2549
9930380f
JB		 2550static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2551 struct net_device *dev,
2552 const u8 *addr,
2553 const struct cfg80211_bitrate_mask *mask)
2554{
2555 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2556 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2557 int i, ret;
2c7e6bc9 2558
554a43d5
EP		 2559 if (!ieee80211_sdata_running(sdata))
2560 return -ENETDOWN;
2561
30686bf7 2562 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
bdbfd6b5
SM		 2563 ret = drv_set_bitrate_mask(local, sdata, mask);
2564 if (ret)
2565 return ret;
2566 }
9930380f 2567
57fbcce3 2568 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2ffbe6d3
FF		 2569 struct ieee80211_supported_band *sband = wiphy->bands[i];
2570 int j;
2571
37eb0b16 2572 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2573 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2574 sizeof(mask->control[i].ht_mcs));
b119ad6e
LB		 2575 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2576 mask->control[i].vht_mcs,
2577 sizeof(mask->control[i].vht_mcs));
2ffbe6d3
FF		 2578
2579 sdata->rc_has_mcs_mask[i] = false;
b119ad6e 2580 sdata->rc_has_vht_mcs_mask[i] = false;
2ffbe6d3
FF		 2581 if (!sband)
2582 continue;
2583
b119ad6e 2584 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2df1b131 2585 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2ffbe6d3 2586 sdata->rc_has_mcs_mask[i] = true;
2df1b131
JB		 2587 break;
2588 }
2589 }
b119ad6e 2590
2df1b131
JB		 2591 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2592 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
b119ad6e 2593 sdata->rc_has_vht_mcs_mask[i] = true;
2ffbe6d3 2594 break;
2df1b131 2595 }
b119ad6e 2596 }
19468413 2597 }
9930380f 2598
37eb0b16 2599 return 0;
9930380f
JB		 2600}
2601
164eb02d
SW		 2602static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2603 struct net_device *dev,
31559f35
JD		 2604 struct cfg80211_chan_def *chandef,
2605 u32 cac_time_ms)
164eb02d
SW		 2606{
2607 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2608 struct ieee80211_local *local = sdata->local;
164eb02d
SW		 2609 int err;
2610
34a3740d
JB		 2611 mutex_lock(&local->mtx);
2612 if (!list_empty(&local->roc_list) || local->scanning) {
2613 err = -EBUSY;
2614 goto out_unlock;
2615 }
164eb02d
SW		 2616
2617 /* whatever, but channel contexts should not complain about that one */
2618 sdata->smps_mode = IEEE80211_SMPS_OFF;
2619 sdata->needed_rx_chains = local->rx_chains;
164eb02d 2620
164eb02d
SW		 2621 err = ieee80211_vif_use_channel(sdata, chandef,
2622 IEEE80211_CHANCTX_SHARED);
164eb02d 2623 if (err)
34a3740d 2624 goto out_unlock;
164eb02d 2625
164eb02d 2626 ieee80211_queue_delayed_work(&sdata->local->hw,
31559f35
JD		 2627 &sdata->dfs_cac_timer_work,
2628 msecs_to_jiffies(cac_time_ms));
164eb02d 2629
34a3740d
JB		 2630 out_unlock:
2631 mutex_unlock(&local->mtx);
2632 return err;
164eb02d
SW		 2633}
2634
73da7d5b
SW		 2635static struct cfg80211_beacon_data *
2636cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2637{
2638 struct cfg80211_beacon_data *new_beacon;
2639 u8 *pos;
2640 int len;
2641
2642 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2643 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2644 beacon->probe_resp_len;
2645
2646 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2647 if (!new_beacon)
2648 return NULL;
2649
2650 pos = (u8 *)(new_beacon + 1);
2651 if (beacon->head_len) {
2652 new_beacon->head_len = beacon->head_len;
2653 new_beacon->head = pos;
2654 memcpy(pos, beacon->head, beacon->head_len);
2655 pos += beacon->head_len;
2656 }
2657 if (beacon->tail_len) {
2658 new_beacon->tail_len = beacon->tail_len;
2659 new_beacon->tail = pos;
2660 memcpy(pos, beacon->tail, beacon->tail_len);
2661 pos += beacon->tail_len;
2662 }
2663 if (beacon->beacon_ies_len) {
2664 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2665 new_beacon->beacon_ies = pos;
2666 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2667 pos += beacon->beacon_ies_len;
2668 }
2669 if (beacon->proberesp_ies_len) {
2670 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2671 new_beacon->proberesp_ies = pos;
2672 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2673 pos += beacon->proberesp_ies_len;
2674 }
2675 if (beacon->assocresp_ies_len) {
2676 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2677 new_beacon->assocresp_ies = pos;
2678 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2679 pos += beacon->assocresp_ies_len;
2680 }
2681 if (beacon->probe_resp_len) {
2682 new_beacon->probe_resp_len = beacon->probe_resp_len;
2683 beacon->probe_resp = pos;
2684 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2685 pos += beacon->probe_resp_len;
2686 }
2687
2688 return new_beacon;
2689}
2690
66e01cf9 2691void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2692{
66e01cf9 2693 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2694
66e01cf9
LC		 2695 ieee80211_queue_work(&sdata->local->hw,
2696 &sdata->csa_finalize_work);
2697}
2698EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 2699
66199506
MK		 2700static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2701 u32 *changed)
66e01cf9 2702{
66199506 2703 int err;
7578d575 2704
cd7760e6
SW		 2705 switch (sdata->vif.type) {
2706 case NL80211_IFTYPE_AP:
af296bdb
MK		 2707 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2708 NULL);
97518af1
MK		 2709 kfree(sdata->u.ap.next_beacon);
2710 sdata->u.ap.next_beacon = NULL;
2711
cd7760e6 2712 if (err < 0)
66199506
MK		 2713 return err;
2714 *changed |= err;
cd7760e6
SW		 2715 break;
2716 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 2717 err = ieee80211_ibss_finish_csa(sdata);
2718 if (err < 0)
66199506
MK		 2719 return err;
2720 *changed |= err;
cd7760e6 2721 break;
b8456a14
CYY		 2722#ifdef CONFIG_MAC80211_MESH
2723 case NL80211_IFTYPE_MESH_POINT:
2724 err = ieee80211_mesh_finish_csa(sdata);
2725 if (err < 0)
66199506
MK		 2726 return err;
2727 *changed |= err;
b8456a14
CYY		 2728 break;
2729#endif
cd7760e6
SW		 2730 default:
2731 WARN_ON(1);
66199506
MK		 2732 return -EINVAL;
2733 }
2734
2735 return 0;
2736}
2737
cf8767dd 2738static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
66199506
MK		 2739{
2740 struct ieee80211_local *local = sdata->local;
2741 u32 changed = 0;
2742 int err;
2743
2744 sdata_assert_lock(sdata);
2745 lockdep_assert_held(&local->mtx);
03078de4 2746 lockdep_assert_held(&local->chanctx_mtx);
66199506 2747
03078de4
MK		 2748 /*
2749 * using reservation isn't immediate as it may be deferred until later
2750 * with multi-vif. once reservation is complete it will re-schedule the
2751 * work with no reserved_chanctx so verify chandef to check if it
2752 * completed successfully
2753 */
66199506 2754
03078de4
MK		 2755 if (sdata->reserved_chanctx) {
2756 /*
2757 * with multi-vif csa driver may call ieee80211_csa_finish()
2758 * many times while waiting for other interfaces to use their
2759 * reservations
2760 */
2761 if (sdata->reserved_ready)
2762 return 0;
2763
408b18ab 2764 return ieee80211_vif_use_reserved_context(sdata);
cd7760e6 2765 }
73da7d5b 2766
03078de4
MK		 2767 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2768 &sdata->csa_chandef))
2769 return -EINVAL;
2770
66199506
MK		 2771 sdata->vif.csa_active = false;
2772
2773 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2774 if (err)
cf8767dd 2775 return err;
faf046e7 2776
66199506 2777 ieee80211_bss_info_change_notify(sdata, changed);
59af6928 2778
a46992b4
LC		 2779 if (sdata->csa_block_tx) {
2780 ieee80211_wake_vif_queues(local, sdata,
2781 IEEE80211_QUEUE_STOP_REASON_CSA);
2782 sdata->csa_block_tx = false;
2783 }
cf8767dd 2784
f1d65583
LC		 2785 err = drv_post_channel_switch(sdata);
2786 if (err)
2787 return err;
2788
2789 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2790
cf8767dd
MK		 2791 return 0;
2792}
2793
2794static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2795{
2796 if (__ieee80211_csa_finalize(sdata)) {
2797 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2798 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2799 GFP_KERNEL);
2800 }
66e01cf9
LC		 2801}
2802
2803void ieee80211_csa_finalize_work(struct work_struct *work)
2804{
2805 struct ieee80211_sub_if_data *sdata =
2806 container_of(work, struct ieee80211_sub_if_data,
2807 csa_finalize_work);
59af6928 2808 struct ieee80211_local *local = sdata->local;
66e01cf9
LC		 2809
2810 sdata_lock(sdata);
59af6928 2811 mutex_lock(&local->mtx);
03078de4 2812 mutex_lock(&local->chanctx_mtx);
59af6928 2813
66e01cf9
LC		 2814 /* AP might have been stopped while waiting for the lock. */
2815 if (!sdata->vif.csa_active)
2816 goto unlock;
2817
2818 if (!ieee80211_sdata_running(sdata))
2819 goto unlock;
2820
2821 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 2822
2823unlock:
03078de4 2824 mutex_unlock(&local->chanctx_mtx);
59af6928 2825 mutex_unlock(&local->mtx);
e487eaeb 2826 sdata_unlock(sdata);
73da7d5b
SW		 2827}
2828
37fa2bdd
MK		 2829static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2830 struct cfg80211_csa_settings *params,
2831 u32 *changed)
73da7d5b 2832{
af296bdb 2833 struct ieee80211_csa_settings csa = {};
37fa2bdd 2834 int err;
73da7d5b 2835
73da7d5b
SW		 2836 switch (sdata->vif.type) {
2837 case NL80211_IFTYPE_AP:
cd7760e6
SW		 2838 sdata->u.ap.next_beacon =
2839 cfg80211_beacon_dup(&params->beacon_after);
2840 if (!sdata->u.ap.next_beacon)
2841 return -ENOMEM;
2842
66e01cf9
LC		 2843 /*
2844 * With a count of 0, we don't have to wait for any
2845 * TBTT before switching, so complete the CSA
2846 * immediately. In theory, with a count == 1 we
2847 * should delay the switch until just before the next
2848 * TBTT, but that would complicate things so we switch
2849 * immediately too. If we would delay the switch
2850 * until the next TBTT, we would have to set the probe
2851 * response here.
2852 *
2853 * TODO: A channel switch with count <= 1 without
2854 * sending a CSA action frame is kind of useless,
2855 * because the clients won't know we're changing
2856 * channels. The action frame must be implemented
2857 * either here or in the userspace.
2858 */
2859 if (params->count <= 1)
2860 break;
2861
0d06d9ba
AO		 2862 if ((params->n_counter_offsets_beacon >
2863 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2864 (params->n_counter_offsets_presp >
2865 IEEE80211_MAX_CSA_COUNTERS_NUM))
2866 return -EINVAL;
9a774c78 2867
af296bdb
MK		 2868 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2869 csa.counter_offsets_presp = params->counter_offsets_presp;
2870 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2871 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2872 csa.count = params->count;
9a774c78 2873
af296bdb 2874 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
cd7760e6
SW		 2875 if (err < 0) {
2876 kfree(sdata->u.ap.next_beacon);
2877 return err;
2878 }
37fa2bdd 2879 *changed |= err;
66e01cf9 2880
cd7760e6
SW		 2881 break;
2882 case NL80211_IFTYPE_ADHOC:
2883 if (!sdata->vif.bss_conf.ibss_joined)
2884 return -EINVAL;
2885
2886 if (params->chandef.width != sdata->u.ibss.chandef.width)
2887 return -EINVAL;
2888
2889 switch (params->chandef.width) {
2890 case NL80211_CHAN_WIDTH_40:
2891 if (cfg80211_get_chandef_type(&params->chandef) !=
2892 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2893 return -EINVAL;
2894 case NL80211_CHAN_WIDTH_5:
2895 case NL80211_CHAN_WIDTH_10:
2896 case NL80211_CHAN_WIDTH_20_NOHT:
2897 case NL80211_CHAN_WIDTH_20:
2898 break;
2899 default:
2900 return -EINVAL;
2901 }
2902
2903 /* changes into another band are not supported */
2904 if (sdata->u.ibss.chandef.chan->band !=
2905 params->chandef.chan->band)
2906 return -EINVAL;
2907
66e01cf9
LC		 2908 /* see comments in the NL80211_IFTYPE_AP block */
2909 if (params->count > 1) {
2910 err = ieee80211_ibss_csa_beacon(sdata, params);
2911 if (err < 0)
2912 return err;
37fa2bdd 2913 *changed |= err;
66e01cf9
LC		 2914 }
2915
2916 ieee80211_send_action_csa(sdata, params);
2917
73da7d5b 2918 break;
c6da674a 2919#ifdef CONFIG_MAC80211_MESH
37fa2bdd
MK		 2920 case NL80211_IFTYPE_MESH_POINT: {
2921 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a 2922
c6da674a
CYY		 2923 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
2924 return -EINVAL;
2925
2926 /* changes into another band are not supported */
2927 if (sdata->vif.bss_conf.chandef.chan->band !=
2928 params->chandef.chan->band)
2929 return -EINVAL;
2930
c782bf8c 2931 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 2932 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 2933 if (!ifmsh->pre_value)
2934 ifmsh->pre_value = 1;
2935 else
2936 ifmsh->pre_value++;
2937 }
0cb4d4dc 2938
66e01cf9
LC		 2939 /* see comments in the NL80211_IFTYPE_AP block */
2940 if (params->count > 1) {
2941 err = ieee80211_mesh_csa_beacon(sdata, params);
2942 if (err < 0) {
2943 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
2944 return err;
2945 }
37fa2bdd 2946 *changed |= err;
3f718fd8 2947 }
66e01cf9
LC		 2948
2949 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
2950 ieee80211_send_action_csa(sdata, params);
2951
c6da674a 2952 break;
37fa2bdd 2953 }
c6da674a 2954#endif
73da7d5b
SW		 2955 default:
2956 return -EOPNOTSUPP;
2957 }
2958
37fa2bdd
MK		 2959 return 0;
2960}
2961
f29f58a9
LC		 2962static int
2963__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2964 struct cfg80211_csa_settings *params)
37fa2bdd
MK		 2965{
2966 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2967 struct ieee80211_local *local = sdata->local;
6d027bcc 2968 struct ieee80211_channel_switch ch_switch;
2b32713d 2969 struct ieee80211_chanctx_conf *conf;
37fa2bdd 2970 struct ieee80211_chanctx *chanctx;
b08cc24e
JB		 2971 u32 changed = 0;
2972 int err;
37fa2bdd
MK		 2973
2974 sdata_assert_lock(sdata);
59af6928 2975 lockdep_assert_held(&local->mtx);
37fa2bdd
MK		 2976
2977 if (!list_empty(&local->roc_list) || local->scanning)
2978 return -EBUSY;
2979
2980 if (sdata->wdev.cac_started)
2981 return -EBUSY;
2982
2983 if (cfg80211_chandef_identical(&params->chandef,
2984 &sdata->vif.bss_conf.chandef))
2985 return -EINVAL;
2986
03078de4
MK		 2987 /* don't allow another channel switch if one is already active. */
2988 if (sdata->vif.csa_active)
2989 return -EBUSY;
2990
2b32713d
MK		 2991 mutex_lock(&local->chanctx_mtx);
2992 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
2993 lockdep_is_held(&local->chanctx_mtx));
2994 if (!conf) {
03078de4
MK		 2995 err = -EBUSY;
2996 goto out;
37fa2bdd
MK		 2997 }
2998
2b32713d 2999 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
37fa2bdd 3000
000baa5d
LC		 3001 ch_switch.timestamp = 0;
3002 ch_switch.device_timestamp = 0;
3003 ch_switch.block_tx = params->block_tx;
3004 ch_switch.chandef = params->chandef;
3005 ch_switch.count = params->count;
3006
6d027bcc
LC		 3007 err = drv_pre_channel_switch(sdata, &ch_switch);
3008 if (err)
3009 goto out;
3010
03078de4
MK		 3011 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3012 chanctx->mode,
3013 params->radar_required);
3014 if (err)
3015 goto out;
37fa2bdd 3016
03078de4
MK		 3017 /* if reservation is invalid then this will fail */
3018 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3019 if (err) {
3020 ieee80211_vif_unreserve_chanctx(sdata);
3021 goto out;
3022 }
37fa2bdd
MK		 3023
3024 err = ieee80211_set_csa_beacon(sdata, params, &changed);
03078de4
MK		 3025 if (err) {
3026 ieee80211_vif_unreserve_chanctx(sdata);
3027 goto out;
3028 }
37fa2bdd 3029
33787fc4 3030 sdata->csa_chandef = params->chandef;
59af6928 3031 sdata->csa_block_tx = params->block_tx;
73da7d5b
SW		 3032 sdata->vif.csa_active = true;
3033
59af6928 3034 if (sdata->csa_block_tx)
a46992b4
LC		 3035 ieee80211_stop_vif_queues(local, sdata,
3036 IEEE80211_QUEUE_STOP_REASON_CSA);
59af6928 3037
2f457293
LC		 3038 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
3039 params->count);
3040
66e01cf9
LC		 3041 if (changed) {
3042 ieee80211_bss_info_change_notify(sdata, changed);
3043 drv_channel_switch_beacon(sdata, &params->chandef);
3044 } else {
3045 /* if the beacon didn't change, we can finalize immediately */
3046 ieee80211_csa_finalize(sdata);
3047 }
73da7d5b 3048
03078de4
MK		 3049out:
3050 mutex_unlock(&local->chanctx_mtx);
3051 return err;
73da7d5b
SW		 3052}
3053
59af6928
MK		 3054int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3055 struct cfg80211_csa_settings *params)
3056{
3057 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3058 struct ieee80211_local *local = sdata->local;
3059 int err;
3060
3061 mutex_lock(&local->mtx);
3062 err = __ieee80211_channel_switch(wiphy, dev, params);
3063 mutex_unlock(&local->mtx);
3064
3065 return err;
3066}
3067
a2fcfccb
JB		 3068u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3069{
3070 lockdep_assert_held(&local->mtx);
3071
3072 local->roc_cookie_counter++;
3073
3074 /* wow, you wrapped 64 bits ... more likely a bug */
3075 if (WARN_ON(local->roc_cookie_counter == 0))
3076 local->roc_cookie_counter++;
3077
3078 return local->roc_cookie_counter;
3079}
3080
5ee00dbd
JB		 3081int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3082 u64 *cookie, gfp_t gfp)
3b79af97
JB		 3083{
3084 unsigned long spin_flags;
3085 struct sk_buff *ack_skb;
3086 int id;
3087
3088 ack_skb = skb_copy(skb, gfp);
3089 if (!ack_skb)
5ee00dbd 3090 return -ENOMEM;
3b79af97
JB		 3091
3092 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3093 id = idr_alloc(&local->ack_status_frames, ack_skb,
3094 1, 0x10000, GFP_ATOMIC);
3095 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3096
3097 if (id < 0) {
3098 kfree_skb(ack_skb);
5ee00dbd 3099 return -ENOMEM;
3b79af97
JB		 3100 }
3101
3102 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3103
3104 *cookie = ieee80211_mgmt_tx_cookie(local);
3105 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3106
5ee00dbd 3107 return 0;
3b79af97
JB		 3108}
3109
7be5086d 3110static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3111 struct wireless_dev *wdev,
7be5086d
JB		 3112 u16 frame_type, bool reg)
3113{
3114 struct ieee80211_local *local = wiphy_priv(wiphy);
1b09b556 3115 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7be5086d 3116
6abe0563 3117 switch (frame_type) {
6abe0563 3118 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
1b09b556 3119 if (reg) {
6abe0563 3120 local->probe_req_reg++;
1b09b556
AO		 3121 sdata->vif.probe_req_reg++;
3122 } else {
3123 if (local->probe_req_reg)
3124 local->probe_req_reg--;
3125
3126 if (sdata->vif.probe_req_reg)
3127 sdata->vif.probe_req_reg--;
3128 }
7be5086d 3129
35f5149e
FF		 3130 if (!local->open_count)
3131 break;
3132
1b09b556
AO		 3133 if (sdata->vif.probe_req_reg == 1)
3134 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3135 FIF_PROBE_REQ);
3136 else if (sdata->vif.probe_req_reg == 0)
3137 drv_config_iface_filter(local, sdata, 0,
3138 FIF_PROBE_REQ);
3139
3140 ieee80211_configure_filter(local);
6abe0563
WH		 3141 break;
3142 default:
3143 break;
3144 }
7be5086d
JB		 3145}
3146
15d96753
BR		 3147static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3148{
3149 struct ieee80211_local *local = wiphy_priv(wiphy);
3150
3151 if (local->started)
3152 return -EOPNOTSUPP;
3153
3154 return drv_set_antenna(local, tx_ant, rx_ant);
3155}
3156
3157static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3158{
3159 struct ieee80211_local *local = wiphy_priv(wiphy);
3160
3161 return drv_get_antenna(local, tx_ant, rx_ant);
3162}
3163
c68f4b89
JB		 3164static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3165 struct net_device *dev,
3166 struct cfg80211_gtk_rekey_data *data)
3167{
3168 struct ieee80211_local *local = wiphy_priv(wiphy);
3169 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3170
3171 if (!local->ops->set_rekey_data)
3172 return -EOPNOTSUPP;
3173
3174 drv_set_rekey_data(local, sdata, data);
3175
3176 return 0;
3177}
3178
06500736
JB		 3179static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3180 const u8 *peer, u64 *cookie)
3181{
3182 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3183 struct ieee80211_local *local = sdata->local;
3184 struct ieee80211_qos_hdr *nullfunc;
5ee00dbd 3185 struct sk_buff *skb;
06500736
JB		 3186 int size = sizeof(*nullfunc);
3187 __le16 fc;
3188 bool qos;
3189 struct ieee80211_tx_info *info;
3190 struct sta_info *sta;
55de908a 3191 struct ieee80211_chanctx_conf *chanctx_conf;
57fbcce3 3192 enum nl80211_band band;
3b79af97
JB		 3193 int ret;
3194
3195 /* the lock is needed to assign the cookie later */
3196 mutex_lock(&local->mtx);
06500736
JB		 3197
3198 rcu_read_lock();
55de908a
JB		 3199 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3200 if (WARN_ON(!chanctx_conf)) {
3b79af97
JB		 3201 ret = -EINVAL;
3202 goto unlock;
55de908a 3203 }
4bf88530 3204 band = chanctx_conf->def.chan->band;
03bb7f42 3205 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3206 if (sta) {
a74a8c84 3207 qos = sta->sta.wme;
b4487c2d 3208 } else {
3b79af97
JB		 3209 ret = -ENOLINK;
3210 goto unlock;
b4487c2d 3211 }
06500736
JB		 3212
3213 if (qos) {
3214 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3215 IEEE80211_STYPE_QOS_NULLFUNC |
3216 IEEE80211_FCTL_FROMDS);
3217 } else {
3218 size -= 2;
3219 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3220 IEEE80211_STYPE_NULLFUNC |
3221 IEEE80211_FCTL_FROMDS);
3222 }
3223
3224 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a 3225 if (!skb) {
3b79af97
JB		 3226 ret = -ENOMEM;
3227 goto unlock;
55de908a 3228 }
06500736
JB		 3229
3230 skb->dev = dev;
3231
3232 skb_reserve(skb, local->hw.extra_tx_headroom);
3233
3234 nullfunc = (void *) skb_put(skb, size);
3235 nullfunc->frame_control = fc;
3236 nullfunc->duration_id = 0;
3237 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3238 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3239 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3240 nullfunc->seq_ctrl = 0;
3241
3242 info = IEEE80211_SKB_CB(skb);
3243
3244 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3245 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
73c4e195 3246 info->band = band;
06500736
JB		 3247
3248 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3249 skb->priority = 7;
3250 if (qos)
3251 nullfunc->qos_ctrl = cpu_to_le16(7);
3252
5ee00dbd
JB		 3253 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3254 if (ret) {
3b79af97 3255 kfree_skb(skb);
3b79af97
JB		 3256 goto unlock;
3257 }
3258
06500736 3259 local_bh_disable();
7c10770f 3260 ieee80211_xmit(sdata, sta, skb);
06500736 3261 local_bh_enable();
3b79af97
JB		 3262
3263 ret = 0;
3264unlock:
55de908a 3265 rcu_read_unlock();
3b79af97 3266 mutex_unlock(&local->mtx);
06500736 3267
3b79af97 3268 return ret;
06500736
JB		 3269}
3270
683b6d3b
JB		 3271static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3272 struct wireless_dev *wdev,
3273 struct cfg80211_chan_def *chandef)
5b7ccaf3 3274{
55de908a 3275 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3276 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3277 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3278 int ret = -ENODATA;
55de908a
JB		 3279
3280 rcu_read_lock();
feda3027
JB		 3281 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3282 if (chanctx_conf) {
c12bc488 3283 *chandef = sdata->vif.bss_conf.chandef;
feda3027
JB		 3284 ret = 0;
3285 } else if (local->open_count > 0 &&
3286 local->open_count == local->monitors &&
3287 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3288 if (local->use_chanctx)
3289 *chandef = local->monitor_chandef;
3290 else
675a0b04 3291 *chandef = local->_oper_chandef;
683b6d3b 3292 ret = 0;
55de908a
JB		 3293 }
3294 rcu_read_unlock();
5b7ccaf3 3295
683b6d3b 3296 return ret;
5b7ccaf3
JB		 3297}
3298
6d52563f
JB		 3299#ifdef CONFIG_PM
3300static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3301{
3302 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3303}
3304#endif
3305
32db6b54
KP		 3306static int ieee80211_set_qos_map(struct wiphy *wiphy,
3307 struct net_device *dev,
3308 struct cfg80211_qos_map *qos_map)
3309{
3310 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3311 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3312
3313 if (qos_map) {
3314 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3315 if (!new_qos_map)
3316 return -ENOMEM;
3317 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3318 } else {
3319 /* A NULL qos_map was passed to disable QoS mapping */
3320 new_qos_map = NULL;
3321 }
3322
194ff52d 3323 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3324 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3325 if (old_qos_map)
3326 kfree_rcu(old_qos_map, rcu_head);
3327
3328 return 0;
3329}
3330
3b1700bd
JM		 3331static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3332 struct net_device *dev,
3333 struct cfg80211_chan_def *chandef)
3334{
3335 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3336 int ret;
3337 u32 changed = 0;
3338
3339 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3340 if (ret == 0)
3341 ieee80211_bss_info_change_notify(sdata, changed);
3342
3343 return ret;
3344}
3345
02219b3a
JB		 3346static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3347 u8 tsid, const u8 *peer, u8 up,
3348 u16 admitted_time)
3349{
3350 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3351 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3352 int ac = ieee802_1d_to_ac[up];
3353
3354 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3355 return -EOPNOTSUPP;
3356
3357 if (!(sdata->wmm_acm & BIT(up)))
3358 return -EINVAL;
3359
3360 if (ifmgd->tx_tspec[ac].admitted_time)
3361 return -EBUSY;
3362
3363 if (admitted_time) {
3364 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3365 ifmgd->tx_tspec[ac].tsid = tsid;
3366 ifmgd->tx_tspec[ac].up = up;
3367 }
3368
3369 return 0;
3370}
3371
3372static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3373 u8 tsid, const u8 *peer)
3374{
3375 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3376 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3377 struct ieee80211_local *local = wiphy_priv(wiphy);
3378 int ac;
3379
3380 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3381 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3382
3383 /* skip unused entries */
3384 if (!tx_tspec->admitted_time)
3385 continue;
3386
3387 if (tx_tspec->tsid != tsid)
3388 continue;
3389
3390 /* due to this new packets will be reassigned to non-ACM ACs */
3391 tx_tspec->up = -1;
3392
3393 /* Make sure that all packets have been sent to avoid to
3394 * restore the QoS params on packets that are still on the
3395 * queues.
3396 */
3397 synchronize_net();
3b24f4c6 3398 ieee80211_flush_queues(local, sdata, false);
02219b3a
JB		 3399
3400 /* restore the normal QoS parameters
3401 * (unconditionally to avoid races)
3402 */
3403 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3404 tx_tspec->downgraded = false;
3405 ieee80211_sta_handle_tspec_ac_params(sdata);
3406
3407 /* finally clear all the data */
3408 memset(tx_tspec, 0, sizeof(*tx_tspec));
3409
3410 return 0;
3411 }
3412
3413 return -ENOENT;
3414}
3415
8a47cea7 3416const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3417 .add_virtual_intf = ieee80211_add_iface,
3418 .del_virtual_intf = ieee80211_del_iface,
42613db7 3419 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3420 .start_p2p_device = ieee80211_start_p2p_device,
3421 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3422 .add_key = ieee80211_add_key,
3423 .del_key = ieee80211_del_key,
62da92fb 3424 .get_key = ieee80211_get_key,
e8cbb4cb 3425 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3426 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3427 .start_ap = ieee80211_start_ap,
3428 .change_beacon = ieee80211_change_beacon,
3429 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3430 .add_station = ieee80211_add_station,
3431 .del_station = ieee80211_del_station,
3432 .change_station = ieee80211_change_station,
7bbdd2d9 3433 .get_station = ieee80211_get_station,
c5dd9c2b 3434 .dump_station = ieee80211_dump_station,
1289723e 3435 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3436#ifdef CONFIG_MAC80211_MESH
3437 .add_mpath = ieee80211_add_mpath,
3438 .del_mpath = ieee80211_del_mpath,
3439 .change_mpath = ieee80211_change_mpath,
3440 .get_mpath = ieee80211_get_mpath,
3441 .dump_mpath = ieee80211_dump_mpath,
a2db2ed3
HR		 3442 .get_mpp = ieee80211_get_mpp,
3443 .dump_mpp = ieee80211_dump_mpp,
24bdd9f4
JC		 3444 .update_mesh_config = ieee80211_update_mesh_config,
3445 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3446 .join_mesh = ieee80211_join_mesh,
3447 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3448#endif
239281f8
RL		 3449 .join_ocb = ieee80211_join_ocb,
3450 .leave_ocb = ieee80211_leave_ocb,
9f1ba906 3451 .change_bss = ieee80211_change_bss,
31888487 3452 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3453 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3454 .suspend = ieee80211_suspend,
3455 .resume = ieee80211_resume,
2a519311 3456 .scan = ieee80211_scan,
91f123f2 3457 .abort_scan = ieee80211_abort_scan,
79f460ca
LC		 3458 .sched_scan_start = ieee80211_sched_scan_start,
3459 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3460 .auth = ieee80211_auth,
3461 .assoc = ieee80211_assoc,
3462 .deauth = ieee80211_deauth,
3463 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3464 .join_ibss = ieee80211_join_ibss,
3465 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3466 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3467 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3468 .set_tx_power = ieee80211_set_tx_power,
3469 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3470 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3471 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3472 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3473 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3474 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3475 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3476 .remain_on_channel = ieee80211_remain_on_channel,
3477 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3478 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3479 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3480 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3481 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3482 .set_antenna = ieee80211_set_antenna,
3483 .get_antenna = ieee80211_get_antenna,
c68f4b89 3484 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3485 .tdls_oper = ieee80211_tdls_oper,
3486 .tdls_mgmt = ieee80211_tdls_mgmt,
a7a6bdd0
AN		 3487 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3488 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
06500736 3489 .probe_client = ieee80211_probe_client,
b53be792 3490 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3491#ifdef CONFIG_PM
3492 .set_wakeup = ieee80211_set_wakeup,
3493#endif
5b7ccaf3 3494 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3495 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3496 .channel_switch = ieee80211_channel_switch,
32db6b54 3497 .set_qos_map = ieee80211_set_qos_map,
3b1700bd 3498 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
02219b3a
JB		 3499 .add_tx_ts = ieee80211_add_tx_ts,
3500 .del_tx_ts = ieee80211_del_tx_ts,
708d50ed
AB		 3501 .start_nan = ieee80211_start_nan,
3502 .stop_nan = ieee80211_stop_nan,
f0706e82 3503};
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